1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/module.h> 30 #include <linux/kthread.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/aer.h> 35 #include <linux/slab.h> 36 #include <linux/firmware.h> 37 #include <linux/miscdevice.h> 38 #include <linux/percpu.h> 39 #include <linux/msi.h> 40 #include <linux/irq.h> 41 #include <linux/bitops.h> 42 #include <linux/crash_dump.h> 43 #include <linux/cpu.h> 44 #include <linux/cpuhotplug.h> 45 46 #include <scsi/scsi.h> 47 #include <scsi/scsi_device.h> 48 #include <scsi/scsi_host.h> 49 #include <scsi/scsi_transport_fc.h> 50 #include <scsi/scsi_tcq.h> 51 #include <scsi/fc/fc_fs.h> 52 53 #include <linux/nvme-fc-driver.h> 54 55 #include "lpfc_hw4.h" 56 #include "lpfc_hw.h" 57 #include "lpfc_sli.h" 58 #include "lpfc_sli4.h" 59 #include "lpfc_nl.h" 60 #include "lpfc_disc.h" 61 #include "lpfc.h" 62 #include "lpfc_scsi.h" 63 #include "lpfc_nvme.h" 64 #include "lpfc_nvmet.h" 65 #include "lpfc_logmsg.h" 66 #include "lpfc_crtn.h" 67 #include "lpfc_vport.h" 68 #include "lpfc_version.h" 69 #include "lpfc_ids.h" 70 71 static enum cpuhp_state lpfc_cpuhp_state; 72 /* Used when mapping IRQ vectors in a driver centric manner */ 73 static uint32_t lpfc_present_cpu; 74 75 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba); 76 static void lpfc_cpuhp_remove(struct lpfc_hba *phba); 77 static void lpfc_cpuhp_add(struct lpfc_hba *phba); 78 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 79 static int lpfc_post_rcv_buf(struct lpfc_hba *); 80 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 81 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 82 static int lpfc_setup_endian_order(struct lpfc_hba *); 83 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 84 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 85 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 86 static void lpfc_init_sgl_list(struct lpfc_hba *); 87 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 88 static void lpfc_free_active_sgl(struct lpfc_hba *); 89 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 90 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 91 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 92 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 93 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 94 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 95 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 96 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int); 98 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *); 99 100 static struct scsi_transport_template *lpfc_transport_template = NULL; 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 102 static DEFINE_IDR(lpfc_hba_index); 103 #define LPFC_NVMET_BUF_POST 254 104 105 /** 106 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 107 * @phba: pointer to lpfc hba data structure. 108 * 109 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 110 * mailbox command. It retrieves the revision information from the HBA and 111 * collects the Vital Product Data (VPD) about the HBA for preparing the 112 * configuration of the HBA. 113 * 114 * Return codes: 115 * 0 - success. 116 * -ERESTART - requests the SLI layer to reset the HBA and try again. 117 * Any other value - indicates an error. 118 **/ 119 int 120 lpfc_config_port_prep(struct lpfc_hba *phba) 121 { 122 lpfc_vpd_t *vp = &phba->vpd; 123 int i = 0, rc; 124 LPFC_MBOXQ_t *pmb; 125 MAILBOX_t *mb; 126 char *lpfc_vpd_data = NULL; 127 uint16_t offset = 0; 128 static char licensed[56] = 129 "key unlock for use with gnu public licensed code only\0"; 130 static int init_key = 1; 131 132 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 133 if (!pmb) { 134 phba->link_state = LPFC_HBA_ERROR; 135 return -ENOMEM; 136 } 137 138 mb = &pmb->u.mb; 139 phba->link_state = LPFC_INIT_MBX_CMDS; 140 141 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 142 if (init_key) { 143 uint32_t *ptext = (uint32_t *) licensed; 144 145 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 146 *ptext = cpu_to_be32(*ptext); 147 init_key = 0; 148 } 149 150 lpfc_read_nv(phba, pmb); 151 memset((char*)mb->un.varRDnvp.rsvd3, 0, 152 sizeof (mb->un.varRDnvp.rsvd3)); 153 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 154 sizeof (licensed)); 155 156 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 157 158 if (rc != MBX_SUCCESS) { 159 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 160 "0324 Config Port initialization " 161 "error, mbxCmd x%x READ_NVPARM, " 162 "mbxStatus x%x\n", 163 mb->mbxCommand, mb->mbxStatus); 164 mempool_free(pmb, phba->mbox_mem_pool); 165 return -ERESTART; 166 } 167 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 168 sizeof(phba->wwnn)); 169 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 170 sizeof(phba->wwpn)); 171 } 172 173 /* 174 * Clear all option bits except LPFC_SLI3_BG_ENABLED, 175 * which was already set in lpfc_get_cfgparam() 176 */ 177 phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED; 178 179 /* Setup and issue mailbox READ REV command */ 180 lpfc_read_rev(phba, pmb); 181 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 182 if (rc != MBX_SUCCESS) { 183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 184 "0439 Adapter failed to init, mbxCmd x%x " 185 "READ_REV, mbxStatus x%x\n", 186 mb->mbxCommand, mb->mbxStatus); 187 mempool_free( pmb, phba->mbox_mem_pool); 188 return -ERESTART; 189 } 190 191 192 /* 193 * The value of rr must be 1 since the driver set the cv field to 1. 194 * This setting requires the FW to set all revision fields. 195 */ 196 if (mb->un.varRdRev.rr == 0) { 197 vp->rev.rBit = 0; 198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 199 "0440 Adapter failed to init, READ_REV has " 200 "missing revision information.\n"); 201 mempool_free(pmb, phba->mbox_mem_pool); 202 return -ERESTART; 203 } 204 205 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 206 mempool_free(pmb, phba->mbox_mem_pool); 207 return -EINVAL; 208 } 209 210 /* Save information as VPD data */ 211 vp->rev.rBit = 1; 212 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 213 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 214 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 215 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 216 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 217 vp->rev.biuRev = mb->un.varRdRev.biuRev; 218 vp->rev.smRev = mb->un.varRdRev.smRev; 219 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 220 vp->rev.endecRev = mb->un.varRdRev.endecRev; 221 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 222 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 223 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 224 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 225 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 226 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 227 228 /* If the sli feature level is less then 9, we must 229 * tear down all RPIs and VPIs on link down if NPIV 230 * is enabled. 231 */ 232 if (vp->rev.feaLevelHigh < 9) 233 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 234 235 if (lpfc_is_LC_HBA(phba->pcidev->device)) 236 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 237 sizeof (phba->RandomData)); 238 239 /* Get adapter VPD information */ 240 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 241 if (!lpfc_vpd_data) 242 goto out_free_mbox; 243 do { 244 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 245 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 246 247 if (rc != MBX_SUCCESS) { 248 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 249 "0441 VPD not present on adapter, " 250 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 251 mb->mbxCommand, mb->mbxStatus); 252 mb->un.varDmp.word_cnt = 0; 253 } 254 /* dump mem may return a zero when finished or we got a 255 * mailbox error, either way we are done. 256 */ 257 if (mb->un.varDmp.word_cnt == 0) 258 break; 259 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 260 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 261 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 262 lpfc_vpd_data + offset, 263 mb->un.varDmp.word_cnt); 264 offset += mb->un.varDmp.word_cnt; 265 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 266 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 267 268 kfree(lpfc_vpd_data); 269 out_free_mbox: 270 mempool_free(pmb, phba->mbox_mem_pool); 271 return 0; 272 } 273 274 /** 275 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 276 * @phba: pointer to lpfc hba data structure. 277 * @pmboxq: pointer to the driver internal queue element for mailbox command. 278 * 279 * This is the completion handler for driver's configuring asynchronous event 280 * mailbox command to the device. If the mailbox command returns successfully, 281 * it will set internal async event support flag to 1; otherwise, it will 282 * set internal async event support flag to 0. 283 **/ 284 static void 285 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 286 { 287 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 288 phba->temp_sensor_support = 1; 289 else 290 phba->temp_sensor_support = 0; 291 mempool_free(pmboxq, phba->mbox_mem_pool); 292 return; 293 } 294 295 /** 296 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 297 * @phba: pointer to lpfc hba data structure. 298 * @pmboxq: pointer to the driver internal queue element for mailbox command. 299 * 300 * This is the completion handler for dump mailbox command for getting 301 * wake up parameters. When this command complete, the response contain 302 * Option rom version of the HBA. This function translate the version number 303 * into a human readable string and store it in OptionROMVersion. 304 **/ 305 static void 306 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 307 { 308 struct prog_id *prg; 309 uint32_t prog_id_word; 310 char dist = ' '; 311 /* character array used for decoding dist type. */ 312 char dist_char[] = "nabx"; 313 314 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 315 mempool_free(pmboxq, phba->mbox_mem_pool); 316 return; 317 } 318 319 prg = (struct prog_id *) &prog_id_word; 320 321 /* word 7 contain option rom version */ 322 prog_id_word = pmboxq->u.mb.un.varWords[7]; 323 324 /* Decode the Option rom version word to a readable string */ 325 if (prg->dist < 4) 326 dist = dist_char[prg->dist]; 327 328 if ((prg->dist == 3) && (prg->num == 0)) 329 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 330 prg->ver, prg->rev, prg->lev); 331 else 332 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 333 prg->ver, prg->rev, prg->lev, 334 dist, prg->num); 335 mempool_free(pmboxq, phba->mbox_mem_pool); 336 return; 337 } 338 339 /** 340 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 341 * cfg_soft_wwnn, cfg_soft_wwpn 342 * @vport: pointer to lpfc vport data structure. 343 * 344 * 345 * Return codes 346 * None. 347 **/ 348 void 349 lpfc_update_vport_wwn(struct lpfc_vport *vport) 350 { 351 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 352 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; 353 354 /* If the soft name exists then update it using the service params */ 355 if (vport->phba->cfg_soft_wwnn) 356 u64_to_wwn(vport->phba->cfg_soft_wwnn, 357 vport->fc_sparam.nodeName.u.wwn); 358 if (vport->phba->cfg_soft_wwpn) 359 u64_to_wwn(vport->phba->cfg_soft_wwpn, 360 vport->fc_sparam.portName.u.wwn); 361 362 /* 363 * If the name is empty or there exists a soft name 364 * then copy the service params name, otherwise use the fc name 365 */ 366 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 367 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 368 sizeof(struct lpfc_name)); 369 else 370 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 371 sizeof(struct lpfc_name)); 372 373 /* 374 * If the port name has changed, then set the Param changes flag 375 * to unreg the login 376 */ 377 if (vport->fc_portname.u.wwn[0] != 0 && 378 memcmp(&vport->fc_portname, &vport->fc_sparam.portName, 379 sizeof(struct lpfc_name))) 380 vport->vport_flag |= FAWWPN_PARAM_CHG; 381 382 if (vport->fc_portname.u.wwn[0] == 0 || 383 vport->phba->cfg_soft_wwpn || 384 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || 385 vport->vport_flag & FAWWPN_SET) { 386 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 387 sizeof(struct lpfc_name)); 388 vport->vport_flag &= ~FAWWPN_SET; 389 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) 390 vport->vport_flag |= FAWWPN_SET; 391 } 392 else 393 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 394 sizeof(struct lpfc_name)); 395 } 396 397 /** 398 * lpfc_config_port_post - Perform lpfc initialization after config port 399 * @phba: pointer to lpfc hba data structure. 400 * 401 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 402 * command call. It performs all internal resource and state setups on the 403 * port: post IOCB buffers, enable appropriate host interrupt attentions, 404 * ELS ring timers, etc. 405 * 406 * Return codes 407 * 0 - success. 408 * Any other value - error. 409 **/ 410 int 411 lpfc_config_port_post(struct lpfc_hba *phba) 412 { 413 struct lpfc_vport *vport = phba->pport; 414 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 415 LPFC_MBOXQ_t *pmb; 416 MAILBOX_t *mb; 417 struct lpfc_dmabuf *mp; 418 struct lpfc_sli *psli = &phba->sli; 419 uint32_t status, timeout; 420 int i, j; 421 int rc; 422 423 spin_lock_irq(&phba->hbalock); 424 /* 425 * If the Config port completed correctly the HBA is not 426 * over heated any more. 427 */ 428 if (phba->over_temp_state == HBA_OVER_TEMP) 429 phba->over_temp_state = HBA_NORMAL_TEMP; 430 spin_unlock_irq(&phba->hbalock); 431 432 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 433 if (!pmb) { 434 phba->link_state = LPFC_HBA_ERROR; 435 return -ENOMEM; 436 } 437 mb = &pmb->u.mb; 438 439 /* Get login parameters for NID. */ 440 rc = lpfc_read_sparam(phba, pmb, 0); 441 if (rc) { 442 mempool_free(pmb, phba->mbox_mem_pool); 443 return -ENOMEM; 444 } 445 446 pmb->vport = vport; 447 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 449 "0448 Adapter failed init, mbxCmd x%x " 450 "READ_SPARM mbxStatus x%x\n", 451 mb->mbxCommand, mb->mbxStatus); 452 phba->link_state = LPFC_HBA_ERROR; 453 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 454 mempool_free(pmb, phba->mbox_mem_pool); 455 lpfc_mbuf_free(phba, mp->virt, mp->phys); 456 kfree(mp); 457 return -EIO; 458 } 459 460 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 461 462 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 463 lpfc_mbuf_free(phba, mp->virt, mp->phys); 464 kfree(mp); 465 pmb->ctx_buf = NULL; 466 lpfc_update_vport_wwn(vport); 467 468 /* Update the fc_host data structures with new wwn. */ 469 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 470 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 471 fc_host_max_npiv_vports(shost) = phba->max_vpi; 472 473 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 474 /* This should be consolidated into parse_vpd ? - mr */ 475 if (phba->SerialNumber[0] == 0) { 476 uint8_t *outptr; 477 478 outptr = &vport->fc_nodename.u.s.IEEE[0]; 479 for (i = 0; i < 12; i++) { 480 status = *outptr++; 481 j = ((status & 0xf0) >> 4); 482 if (j <= 9) 483 phba->SerialNumber[i] = 484 (char)((uint8_t) 0x30 + (uint8_t) j); 485 else 486 phba->SerialNumber[i] = 487 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 488 i++; 489 j = (status & 0xf); 490 if (j <= 9) 491 phba->SerialNumber[i] = 492 (char)((uint8_t) 0x30 + (uint8_t) j); 493 else 494 phba->SerialNumber[i] = 495 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 496 } 497 } 498 499 lpfc_read_config(phba, pmb); 500 pmb->vport = vport; 501 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 502 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 503 "0453 Adapter failed to init, mbxCmd x%x " 504 "READ_CONFIG, mbxStatus x%x\n", 505 mb->mbxCommand, mb->mbxStatus); 506 phba->link_state = LPFC_HBA_ERROR; 507 mempool_free( pmb, phba->mbox_mem_pool); 508 return -EIO; 509 } 510 511 /* Check if the port is disabled */ 512 lpfc_sli_read_link_ste(phba); 513 514 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 515 i = (mb->un.varRdConfig.max_xri + 1); 516 if (phba->cfg_hba_queue_depth > i) { 517 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 518 "3359 HBA queue depth changed from %d to %d\n", 519 phba->cfg_hba_queue_depth, i); 520 phba->cfg_hba_queue_depth = i; 521 } 522 523 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 524 i = (mb->un.varRdConfig.max_xri >> 3); 525 if (phba->pport->cfg_lun_queue_depth > i) { 526 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 527 "3360 LUN queue depth changed from %d to %d\n", 528 phba->pport->cfg_lun_queue_depth, i); 529 phba->pport->cfg_lun_queue_depth = i; 530 } 531 532 phba->lmt = mb->un.varRdConfig.lmt; 533 534 /* Get the default values for Model Name and Description */ 535 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 536 537 phba->link_state = LPFC_LINK_DOWN; 538 539 /* Only process IOCBs on ELS ring till hba_state is READY */ 540 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 541 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 542 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 543 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 544 545 /* Post receive buffers for desired rings */ 546 if (phba->sli_rev != 3) 547 lpfc_post_rcv_buf(phba); 548 549 /* 550 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 551 */ 552 if (phba->intr_type == MSIX) { 553 rc = lpfc_config_msi(phba, pmb); 554 if (rc) { 555 mempool_free(pmb, phba->mbox_mem_pool); 556 return -EIO; 557 } 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 559 if (rc != MBX_SUCCESS) { 560 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 561 "0352 Config MSI mailbox command " 562 "failed, mbxCmd x%x, mbxStatus x%x\n", 563 pmb->u.mb.mbxCommand, 564 pmb->u.mb.mbxStatus); 565 mempool_free(pmb, phba->mbox_mem_pool); 566 return -EIO; 567 } 568 } 569 570 spin_lock_irq(&phba->hbalock); 571 /* Initialize ERATT handling flag */ 572 phba->hba_flag &= ~HBA_ERATT_HANDLED; 573 574 /* Enable appropriate host interrupts */ 575 if (lpfc_readl(phba->HCregaddr, &status)) { 576 spin_unlock_irq(&phba->hbalock); 577 return -EIO; 578 } 579 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 580 if (psli->num_rings > 0) 581 status |= HC_R0INT_ENA; 582 if (psli->num_rings > 1) 583 status |= HC_R1INT_ENA; 584 if (psli->num_rings > 2) 585 status |= HC_R2INT_ENA; 586 if (psli->num_rings > 3) 587 status |= HC_R3INT_ENA; 588 589 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 590 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 591 status &= ~(HC_R0INT_ENA); 592 593 writel(status, phba->HCregaddr); 594 readl(phba->HCregaddr); /* flush */ 595 spin_unlock_irq(&phba->hbalock); 596 597 /* Set up ring-0 (ELS) timer */ 598 timeout = phba->fc_ratov * 2; 599 mod_timer(&vport->els_tmofunc, 600 jiffies + msecs_to_jiffies(1000 * timeout)); 601 /* Set up heart beat (HB) timer */ 602 mod_timer(&phba->hb_tmofunc, 603 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 604 phba->hb_outstanding = 0; 605 phba->last_completion_time = jiffies; 606 /* Set up error attention (ERATT) polling timer */ 607 mod_timer(&phba->eratt_poll, 608 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 609 610 if (phba->hba_flag & LINK_DISABLED) { 611 lpfc_printf_log(phba, 612 KERN_ERR, LOG_INIT, 613 "2598 Adapter Link is disabled.\n"); 614 lpfc_down_link(phba, pmb); 615 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 616 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 617 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 618 lpfc_printf_log(phba, 619 KERN_ERR, LOG_INIT, 620 "2599 Adapter failed to issue DOWN_LINK" 621 " mbox command rc 0x%x\n", rc); 622 623 mempool_free(pmb, phba->mbox_mem_pool); 624 return -EIO; 625 } 626 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 627 mempool_free(pmb, phba->mbox_mem_pool); 628 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 629 if (rc) 630 return rc; 631 } 632 /* MBOX buffer will be freed in mbox compl */ 633 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 634 if (!pmb) { 635 phba->link_state = LPFC_HBA_ERROR; 636 return -ENOMEM; 637 } 638 639 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 640 pmb->mbox_cmpl = lpfc_config_async_cmpl; 641 pmb->vport = phba->pport; 642 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 643 644 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 645 lpfc_printf_log(phba, 646 KERN_ERR, 647 LOG_INIT, 648 "0456 Adapter failed to issue " 649 "ASYNCEVT_ENABLE mbox status x%x\n", 650 rc); 651 mempool_free(pmb, phba->mbox_mem_pool); 652 } 653 654 /* Get Option rom version */ 655 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 656 if (!pmb) { 657 phba->link_state = LPFC_HBA_ERROR; 658 return -ENOMEM; 659 } 660 661 lpfc_dump_wakeup_param(phba, pmb); 662 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 663 pmb->vport = phba->pport; 664 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 665 666 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 668 "to get Option ROM version status x%x\n", rc); 669 mempool_free(pmb, phba->mbox_mem_pool); 670 } 671 672 return 0; 673 } 674 675 /** 676 * lpfc_hba_init_link - Initialize the FC link 677 * @phba: pointer to lpfc hba data structure. 678 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 679 * 680 * This routine will issue the INIT_LINK mailbox command call. 681 * It is available to other drivers through the lpfc_hba data 682 * structure for use as a delayed link up mechanism with the 683 * module parameter lpfc_suppress_link_up. 684 * 685 * Return code 686 * 0 - success 687 * Any other value - error 688 **/ 689 static int 690 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 691 { 692 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 693 } 694 695 /** 696 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 697 * @phba: pointer to lpfc hba data structure. 698 * @fc_topology: desired fc topology. 699 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 700 * 701 * This routine will issue the INIT_LINK mailbox command call. 702 * It is available to other drivers through the lpfc_hba data 703 * structure for use as a delayed link up mechanism with the 704 * module parameter lpfc_suppress_link_up. 705 * 706 * Return code 707 * 0 - success 708 * Any other value - error 709 **/ 710 int 711 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 712 uint32_t flag) 713 { 714 struct lpfc_vport *vport = phba->pport; 715 LPFC_MBOXQ_t *pmb; 716 MAILBOX_t *mb; 717 int rc; 718 719 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 720 if (!pmb) { 721 phba->link_state = LPFC_HBA_ERROR; 722 return -ENOMEM; 723 } 724 mb = &pmb->u.mb; 725 pmb->vport = vport; 726 727 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 728 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 729 !(phba->lmt & LMT_1Gb)) || 730 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 731 !(phba->lmt & LMT_2Gb)) || 732 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 733 !(phba->lmt & LMT_4Gb)) || 734 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 735 !(phba->lmt & LMT_8Gb)) || 736 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 737 !(phba->lmt & LMT_10Gb)) || 738 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 739 !(phba->lmt & LMT_16Gb)) || 740 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 741 !(phba->lmt & LMT_32Gb)) || 742 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) && 743 !(phba->lmt & LMT_64Gb))) { 744 /* Reset link speed to auto */ 745 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 746 "1302 Invalid speed for this board:%d " 747 "Reset link speed to auto.\n", 748 phba->cfg_link_speed); 749 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 750 } 751 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 752 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 753 if (phba->sli_rev < LPFC_SLI_REV4) 754 lpfc_set_loopback_flag(phba); 755 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 756 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 758 "0498 Adapter failed to init, mbxCmd x%x " 759 "INIT_LINK, mbxStatus x%x\n", 760 mb->mbxCommand, mb->mbxStatus); 761 if (phba->sli_rev <= LPFC_SLI_REV3) { 762 /* Clear all interrupt enable conditions */ 763 writel(0, phba->HCregaddr); 764 readl(phba->HCregaddr); /* flush */ 765 /* Clear all pending interrupts */ 766 writel(0xffffffff, phba->HAregaddr); 767 readl(phba->HAregaddr); /* flush */ 768 } 769 phba->link_state = LPFC_HBA_ERROR; 770 if (rc != MBX_BUSY || flag == MBX_POLL) 771 mempool_free(pmb, phba->mbox_mem_pool); 772 return -EIO; 773 } 774 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 775 if (flag == MBX_POLL) 776 mempool_free(pmb, phba->mbox_mem_pool); 777 778 return 0; 779 } 780 781 /** 782 * lpfc_hba_down_link - this routine downs the FC link 783 * @phba: pointer to lpfc hba data structure. 784 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 785 * 786 * This routine will issue the DOWN_LINK mailbox command call. 787 * It is available to other drivers through the lpfc_hba data 788 * structure for use to stop the link. 789 * 790 * Return code 791 * 0 - success 792 * Any other value - error 793 **/ 794 static int 795 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 796 { 797 LPFC_MBOXQ_t *pmb; 798 int rc; 799 800 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 801 if (!pmb) { 802 phba->link_state = LPFC_HBA_ERROR; 803 return -ENOMEM; 804 } 805 806 lpfc_printf_log(phba, 807 KERN_ERR, LOG_INIT, 808 "0491 Adapter Link is disabled.\n"); 809 lpfc_down_link(phba, pmb); 810 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 811 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 812 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 813 lpfc_printf_log(phba, 814 KERN_ERR, LOG_INIT, 815 "2522 Adapter failed to issue DOWN_LINK" 816 " mbox command rc 0x%x\n", rc); 817 818 mempool_free(pmb, phba->mbox_mem_pool); 819 return -EIO; 820 } 821 if (flag == MBX_POLL) 822 mempool_free(pmb, phba->mbox_mem_pool); 823 824 return 0; 825 } 826 827 /** 828 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 829 * @phba: pointer to lpfc HBA data structure. 830 * 831 * This routine will do LPFC uninitialization before the HBA is reset when 832 * bringing down the SLI Layer. 833 * 834 * Return codes 835 * 0 - success. 836 * Any other value - error. 837 **/ 838 int 839 lpfc_hba_down_prep(struct lpfc_hba *phba) 840 { 841 struct lpfc_vport **vports; 842 int i; 843 844 if (phba->sli_rev <= LPFC_SLI_REV3) { 845 /* Disable interrupts */ 846 writel(0, phba->HCregaddr); 847 readl(phba->HCregaddr); /* flush */ 848 } 849 850 if (phba->pport->load_flag & FC_UNLOADING) 851 lpfc_cleanup_discovery_resources(phba->pport); 852 else { 853 vports = lpfc_create_vport_work_array(phba); 854 if (vports != NULL) 855 for (i = 0; i <= phba->max_vports && 856 vports[i] != NULL; i++) 857 lpfc_cleanup_discovery_resources(vports[i]); 858 lpfc_destroy_vport_work_array(phba, vports); 859 } 860 return 0; 861 } 862 863 /** 864 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 865 * rspiocb which got deferred 866 * 867 * @phba: pointer to lpfc HBA data structure. 868 * 869 * This routine will cleanup completed slow path events after HBA is reset 870 * when bringing down the SLI Layer. 871 * 872 * 873 * Return codes 874 * void. 875 **/ 876 static void 877 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 878 { 879 struct lpfc_iocbq *rspiocbq; 880 struct hbq_dmabuf *dmabuf; 881 struct lpfc_cq_event *cq_event; 882 883 spin_lock_irq(&phba->hbalock); 884 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 885 spin_unlock_irq(&phba->hbalock); 886 887 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 888 /* Get the response iocb from the head of work queue */ 889 spin_lock_irq(&phba->hbalock); 890 list_remove_head(&phba->sli4_hba.sp_queue_event, 891 cq_event, struct lpfc_cq_event, list); 892 spin_unlock_irq(&phba->hbalock); 893 894 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 895 case CQE_CODE_COMPL_WQE: 896 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 897 cq_event); 898 lpfc_sli_release_iocbq(phba, rspiocbq); 899 break; 900 case CQE_CODE_RECEIVE: 901 case CQE_CODE_RECEIVE_V1: 902 dmabuf = container_of(cq_event, struct hbq_dmabuf, 903 cq_event); 904 lpfc_in_buf_free(phba, &dmabuf->dbuf); 905 } 906 } 907 } 908 909 /** 910 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 911 * @phba: pointer to lpfc HBA data structure. 912 * 913 * This routine will cleanup posted ELS buffers after the HBA is reset 914 * when bringing down the SLI Layer. 915 * 916 * 917 * Return codes 918 * void. 919 **/ 920 static void 921 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 922 { 923 struct lpfc_sli *psli = &phba->sli; 924 struct lpfc_sli_ring *pring; 925 struct lpfc_dmabuf *mp, *next_mp; 926 LIST_HEAD(buflist); 927 int count; 928 929 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 930 lpfc_sli_hbqbuf_free_all(phba); 931 else { 932 /* Cleanup preposted buffers on the ELS ring */ 933 pring = &psli->sli3_ring[LPFC_ELS_RING]; 934 spin_lock_irq(&phba->hbalock); 935 list_splice_init(&pring->postbufq, &buflist); 936 spin_unlock_irq(&phba->hbalock); 937 938 count = 0; 939 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 940 list_del(&mp->list); 941 count++; 942 lpfc_mbuf_free(phba, mp->virt, mp->phys); 943 kfree(mp); 944 } 945 946 spin_lock_irq(&phba->hbalock); 947 pring->postbufq_cnt -= count; 948 spin_unlock_irq(&phba->hbalock); 949 } 950 } 951 952 /** 953 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 954 * @phba: pointer to lpfc HBA data structure. 955 * 956 * This routine will cleanup the txcmplq after the HBA is reset when bringing 957 * down the SLI Layer. 958 * 959 * Return codes 960 * void 961 **/ 962 static void 963 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 964 { 965 struct lpfc_sli *psli = &phba->sli; 966 struct lpfc_queue *qp = NULL; 967 struct lpfc_sli_ring *pring; 968 LIST_HEAD(completions); 969 int i; 970 struct lpfc_iocbq *piocb, *next_iocb; 971 972 if (phba->sli_rev != LPFC_SLI_REV4) { 973 for (i = 0; i < psli->num_rings; i++) { 974 pring = &psli->sli3_ring[i]; 975 spin_lock_irq(&phba->hbalock); 976 /* At this point in time the HBA is either reset or DOA 977 * Nothing should be on txcmplq as it will 978 * NEVER complete. 979 */ 980 list_splice_init(&pring->txcmplq, &completions); 981 pring->txcmplq_cnt = 0; 982 spin_unlock_irq(&phba->hbalock); 983 984 lpfc_sli_abort_iocb_ring(phba, pring); 985 } 986 /* Cancel all the IOCBs from the completions list */ 987 lpfc_sli_cancel_iocbs(phba, &completions, 988 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 989 return; 990 } 991 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 992 pring = qp->pring; 993 if (!pring) 994 continue; 995 spin_lock_irq(&pring->ring_lock); 996 list_for_each_entry_safe(piocb, next_iocb, 997 &pring->txcmplq, list) 998 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; 999 list_splice_init(&pring->txcmplq, &completions); 1000 pring->txcmplq_cnt = 0; 1001 spin_unlock_irq(&pring->ring_lock); 1002 lpfc_sli_abort_iocb_ring(phba, pring); 1003 } 1004 /* Cancel all the IOCBs from the completions list */ 1005 lpfc_sli_cancel_iocbs(phba, &completions, 1006 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 1007 } 1008 1009 /** 1010 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 1011 int i; 1012 * @phba: pointer to lpfc HBA data structure. 1013 * 1014 * This routine will do uninitialization after the HBA is reset when bring 1015 * down the SLI Layer. 1016 * 1017 * Return codes 1018 * 0 - success. 1019 * Any other value - error. 1020 **/ 1021 static int 1022 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1023 { 1024 lpfc_hba_free_post_buf(phba); 1025 lpfc_hba_clean_txcmplq(phba); 1026 return 0; 1027 } 1028 1029 /** 1030 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1031 * @phba: pointer to lpfc HBA data structure. 1032 * 1033 * This routine will do uninitialization after the HBA is reset when bring 1034 * down the SLI Layer. 1035 * 1036 * Return codes 1037 * 0 - success. 1038 * Any other value - error. 1039 **/ 1040 static int 1041 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1042 { 1043 struct lpfc_io_buf *psb, *psb_next; 1044 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1045 struct lpfc_sli4_hdw_queue *qp; 1046 LIST_HEAD(aborts); 1047 LIST_HEAD(nvme_aborts); 1048 LIST_HEAD(nvmet_aborts); 1049 struct lpfc_sglq *sglq_entry = NULL; 1050 int cnt, idx; 1051 1052 1053 lpfc_sli_hbqbuf_free_all(phba); 1054 lpfc_hba_clean_txcmplq(phba); 1055 1056 /* At this point in time the HBA is either reset or DOA. Either 1057 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1058 * on the lpfc_els_sgl_list so that it can either be freed if the 1059 * driver is unloading or reposted if the driver is restarting 1060 * the port. 1061 */ 1062 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1063 /* scsl_buf_list */ 1064 /* sgl_list_lock required because worker thread uses this 1065 * list. 1066 */ 1067 spin_lock(&phba->sli4_hba.sgl_list_lock); 1068 list_for_each_entry(sglq_entry, 1069 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1070 sglq_entry->state = SGL_FREED; 1071 1072 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1073 &phba->sli4_hba.lpfc_els_sgl_list); 1074 1075 1076 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1077 1078 /* abts_xxxx_buf_list_lock required because worker thread uses this 1079 * list. 1080 */ 1081 cnt = 0; 1082 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 1083 qp = &phba->sli4_hba.hdwq[idx]; 1084 1085 spin_lock(&qp->abts_io_buf_list_lock); 1086 list_splice_init(&qp->lpfc_abts_io_buf_list, 1087 &aborts); 1088 1089 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1090 psb->pCmd = NULL; 1091 psb->status = IOSTAT_SUCCESS; 1092 cnt++; 1093 } 1094 spin_lock(&qp->io_buf_list_put_lock); 1095 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put); 1096 qp->put_io_bufs += qp->abts_scsi_io_bufs; 1097 qp->put_io_bufs += qp->abts_nvme_io_bufs; 1098 qp->abts_scsi_io_bufs = 0; 1099 qp->abts_nvme_io_bufs = 0; 1100 spin_unlock(&qp->io_buf_list_put_lock); 1101 spin_unlock(&qp->abts_io_buf_list_lock); 1102 } 1103 spin_unlock_irq(&phba->hbalock); 1104 1105 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1106 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1107 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1108 &nvmet_aborts); 1109 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock); 1110 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1111 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1112 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 1113 } 1114 } 1115 1116 lpfc_sli4_free_sp_events(phba); 1117 return cnt; 1118 } 1119 1120 /** 1121 * lpfc_hba_down_post - Wrapper func for hba down post routine 1122 * @phba: pointer to lpfc HBA data structure. 1123 * 1124 * This routine wraps the actual SLI3 or SLI4 routine for performing 1125 * uninitialization after the HBA is reset when bring down the SLI Layer. 1126 * 1127 * Return codes 1128 * 0 - success. 1129 * Any other value - error. 1130 **/ 1131 int 1132 lpfc_hba_down_post(struct lpfc_hba *phba) 1133 { 1134 return (*phba->lpfc_hba_down_post)(phba); 1135 } 1136 1137 /** 1138 * lpfc_hb_timeout - The HBA-timer timeout handler 1139 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1140 * 1141 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1142 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1143 * work-port-events bitmap and the worker thread is notified. This timeout 1144 * event will be used by the worker thread to invoke the actual timeout 1145 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1146 * be performed in the timeout handler and the HBA timeout event bit shall 1147 * be cleared by the worker thread after it has taken the event bitmap out. 1148 **/ 1149 static void 1150 lpfc_hb_timeout(struct timer_list *t) 1151 { 1152 struct lpfc_hba *phba; 1153 uint32_t tmo_posted; 1154 unsigned long iflag; 1155 1156 phba = from_timer(phba, t, hb_tmofunc); 1157 1158 /* Check for heart beat timeout conditions */ 1159 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1160 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1161 if (!tmo_posted) 1162 phba->pport->work_port_events |= WORKER_HB_TMO; 1163 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1164 1165 /* Tell the worker thread there is work to do */ 1166 if (!tmo_posted) 1167 lpfc_worker_wake_up(phba); 1168 return; 1169 } 1170 1171 /** 1172 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1173 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1174 * 1175 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1176 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1177 * work-port-events bitmap and the worker thread is notified. This timeout 1178 * event will be used by the worker thread to invoke the actual timeout 1179 * handler routine, lpfc_rrq_handler. Any periodical operations will 1180 * be performed in the timeout handler and the RRQ timeout event bit shall 1181 * be cleared by the worker thread after it has taken the event bitmap out. 1182 **/ 1183 static void 1184 lpfc_rrq_timeout(struct timer_list *t) 1185 { 1186 struct lpfc_hba *phba; 1187 unsigned long iflag; 1188 1189 phba = from_timer(phba, t, rrq_tmr); 1190 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1191 if (!(phba->pport->load_flag & FC_UNLOADING)) 1192 phba->hba_flag |= HBA_RRQ_ACTIVE; 1193 else 1194 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1195 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1196 1197 if (!(phba->pport->load_flag & FC_UNLOADING)) 1198 lpfc_worker_wake_up(phba); 1199 } 1200 1201 /** 1202 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1203 * @phba: pointer to lpfc hba data structure. 1204 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1205 * 1206 * This is the callback function to the lpfc heart-beat mailbox command. 1207 * If configured, the lpfc driver issues the heart-beat mailbox command to 1208 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1209 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1210 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1211 * heart-beat outstanding state. Once the mailbox command comes back and 1212 * no error conditions detected, the heart-beat mailbox command timer is 1213 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1214 * state is cleared for the next heart-beat. If the timer expired with the 1215 * heart-beat outstanding state set, the driver will put the HBA offline. 1216 **/ 1217 static void 1218 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1219 { 1220 unsigned long drvr_flag; 1221 1222 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1223 phba->hb_outstanding = 0; 1224 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1225 1226 /* Check and reset heart-beat timer is necessary */ 1227 mempool_free(pmboxq, phba->mbox_mem_pool); 1228 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1229 !(phba->link_state == LPFC_HBA_ERROR) && 1230 !(phba->pport->load_flag & FC_UNLOADING)) 1231 mod_timer(&phba->hb_tmofunc, 1232 jiffies + 1233 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1234 return; 1235 } 1236 1237 static void 1238 lpfc_hb_eq_delay_work(struct work_struct *work) 1239 { 1240 struct lpfc_hba *phba = container_of(to_delayed_work(work), 1241 struct lpfc_hba, eq_delay_work); 1242 struct lpfc_eq_intr_info *eqi, *eqi_new; 1243 struct lpfc_queue *eq, *eq_next; 1244 unsigned char *ena_delay = NULL; 1245 uint32_t usdelay; 1246 int i; 1247 1248 if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING) 1249 return; 1250 1251 if (phba->link_state == LPFC_HBA_ERROR || 1252 phba->pport->fc_flag & FC_OFFLINE_MODE) 1253 goto requeue; 1254 1255 ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay), 1256 GFP_KERNEL); 1257 if (!ena_delay) 1258 goto requeue; 1259 1260 for (i = 0; i < phba->cfg_irq_chann; i++) { 1261 /* Get the EQ corresponding to the IRQ vector */ 1262 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 1263 if (!eq) 1264 continue; 1265 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) { 1266 eq->q_flag &= ~HBA_EQ_DELAY_CHK; 1267 ena_delay[eq->last_cpu] = 1; 1268 } 1269 } 1270 1271 for_each_present_cpu(i) { 1272 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 1273 if (ena_delay[i]) { 1274 usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP; 1275 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY) 1276 usdelay = LPFC_MAX_AUTO_EQ_DELAY; 1277 } else { 1278 usdelay = 0; 1279 } 1280 1281 eqi->icnt = 0; 1282 1283 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) { 1284 if (unlikely(eq->last_cpu != i)) { 1285 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info, 1286 eq->last_cpu); 1287 list_move_tail(&eq->cpu_list, &eqi_new->list); 1288 continue; 1289 } 1290 if (usdelay != eq->q_mode) 1291 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1, 1292 usdelay); 1293 } 1294 } 1295 1296 kfree(ena_delay); 1297 1298 requeue: 1299 queue_delayed_work(phba->wq, &phba->eq_delay_work, 1300 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 1301 } 1302 1303 /** 1304 * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution 1305 * @phba: pointer to lpfc hba data structure. 1306 * 1307 * For each heartbeat, this routine does some heuristic methods to adjust 1308 * XRI distribution. The goal is to fully utilize free XRIs. 1309 **/ 1310 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba) 1311 { 1312 u32 i; 1313 u32 hwq_count; 1314 1315 hwq_count = phba->cfg_hdw_queue; 1316 for (i = 0; i < hwq_count; i++) { 1317 /* Adjust XRIs in private pool */ 1318 lpfc_adjust_pvt_pool_count(phba, i); 1319 1320 /* Adjust high watermark */ 1321 lpfc_adjust_high_watermark(phba, i); 1322 1323 #ifdef LPFC_MXP_STAT 1324 /* Snapshot pbl, pvt and busy count */ 1325 lpfc_snapshot_mxp(phba, i); 1326 #endif 1327 } 1328 } 1329 1330 /** 1331 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1332 * @phba: pointer to lpfc hba data structure. 1333 * 1334 * This is the actual HBA-timer timeout handler to be invoked by the worker 1335 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1336 * handler performs any periodic operations needed for the device. If such 1337 * periodic event has already been attended to either in the interrupt handler 1338 * or by processing slow-ring or fast-ring events within the HBA-timer 1339 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1340 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1341 * is configured and there is no heart-beat mailbox command outstanding, a 1342 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1343 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1344 * to offline. 1345 **/ 1346 void 1347 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1348 { 1349 struct lpfc_vport **vports; 1350 LPFC_MBOXQ_t *pmboxq; 1351 struct lpfc_dmabuf *buf_ptr; 1352 int retval, i; 1353 struct lpfc_sli *psli = &phba->sli; 1354 LIST_HEAD(completions); 1355 1356 if (phba->cfg_xri_rebalancing) { 1357 /* Multi-XRI pools handler */ 1358 lpfc_hb_mxp_handler(phba); 1359 } 1360 1361 vports = lpfc_create_vport_work_array(phba); 1362 if (vports != NULL) 1363 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1364 lpfc_rcv_seq_check_edtov(vports[i]); 1365 lpfc_fdmi_change_check(vports[i]); 1366 } 1367 lpfc_destroy_vport_work_array(phba, vports); 1368 1369 if ((phba->link_state == LPFC_HBA_ERROR) || 1370 (phba->pport->load_flag & FC_UNLOADING) || 1371 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1372 return; 1373 1374 spin_lock_irq(&phba->pport->work_port_lock); 1375 1376 if (time_after(phba->last_completion_time + 1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1378 jiffies)) { 1379 spin_unlock_irq(&phba->pport->work_port_lock); 1380 if (!phba->hb_outstanding) 1381 mod_timer(&phba->hb_tmofunc, 1382 jiffies + 1383 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1384 else 1385 mod_timer(&phba->hb_tmofunc, 1386 jiffies + 1387 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1388 return; 1389 } 1390 spin_unlock_irq(&phba->pport->work_port_lock); 1391 1392 if (phba->elsbuf_cnt && 1393 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1394 spin_lock_irq(&phba->hbalock); 1395 list_splice_init(&phba->elsbuf, &completions); 1396 phba->elsbuf_cnt = 0; 1397 phba->elsbuf_prev_cnt = 0; 1398 spin_unlock_irq(&phba->hbalock); 1399 1400 while (!list_empty(&completions)) { 1401 list_remove_head(&completions, buf_ptr, 1402 struct lpfc_dmabuf, list); 1403 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1404 kfree(buf_ptr); 1405 } 1406 } 1407 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1408 1409 /* If there is no heart beat outstanding, issue a heartbeat command */ 1410 if (phba->cfg_enable_hba_heartbeat) { 1411 if (!phba->hb_outstanding) { 1412 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1413 (list_empty(&psli->mboxq))) { 1414 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1415 GFP_KERNEL); 1416 if (!pmboxq) { 1417 mod_timer(&phba->hb_tmofunc, 1418 jiffies + 1419 msecs_to_jiffies(1000 * 1420 LPFC_HB_MBOX_INTERVAL)); 1421 return; 1422 } 1423 1424 lpfc_heart_beat(phba, pmboxq); 1425 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1426 pmboxq->vport = phba->pport; 1427 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1428 MBX_NOWAIT); 1429 1430 if (retval != MBX_BUSY && 1431 retval != MBX_SUCCESS) { 1432 mempool_free(pmboxq, 1433 phba->mbox_mem_pool); 1434 mod_timer(&phba->hb_tmofunc, 1435 jiffies + 1436 msecs_to_jiffies(1000 * 1437 LPFC_HB_MBOX_INTERVAL)); 1438 return; 1439 } 1440 phba->skipped_hb = 0; 1441 phba->hb_outstanding = 1; 1442 } else if (time_before_eq(phba->last_completion_time, 1443 phba->skipped_hb)) { 1444 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1445 "2857 Last completion time not " 1446 " updated in %d ms\n", 1447 jiffies_to_msecs(jiffies 1448 - phba->last_completion_time)); 1449 } else 1450 phba->skipped_hb = jiffies; 1451 1452 mod_timer(&phba->hb_tmofunc, 1453 jiffies + 1454 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1455 return; 1456 } else { 1457 /* 1458 * If heart beat timeout called with hb_outstanding set 1459 * we need to give the hb mailbox cmd a chance to 1460 * complete or TMO. 1461 */ 1462 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1463 "0459 Adapter heartbeat still out" 1464 "standing:last compl time was %d ms.\n", 1465 jiffies_to_msecs(jiffies 1466 - phba->last_completion_time)); 1467 mod_timer(&phba->hb_tmofunc, 1468 jiffies + 1469 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1470 } 1471 } else { 1472 mod_timer(&phba->hb_tmofunc, 1473 jiffies + 1474 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1475 } 1476 } 1477 1478 /** 1479 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1480 * @phba: pointer to lpfc hba data structure. 1481 * 1482 * This routine is called to bring the HBA offline when HBA hardware error 1483 * other than Port Error 6 has been detected. 1484 **/ 1485 static void 1486 lpfc_offline_eratt(struct lpfc_hba *phba) 1487 { 1488 struct lpfc_sli *psli = &phba->sli; 1489 1490 spin_lock_irq(&phba->hbalock); 1491 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1492 spin_unlock_irq(&phba->hbalock); 1493 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1494 1495 lpfc_offline(phba); 1496 lpfc_reset_barrier(phba); 1497 spin_lock_irq(&phba->hbalock); 1498 lpfc_sli_brdreset(phba); 1499 spin_unlock_irq(&phba->hbalock); 1500 lpfc_hba_down_post(phba); 1501 lpfc_sli_brdready(phba, HS_MBRDY); 1502 lpfc_unblock_mgmt_io(phba); 1503 phba->link_state = LPFC_HBA_ERROR; 1504 return; 1505 } 1506 1507 /** 1508 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1509 * @phba: pointer to lpfc hba data structure. 1510 * 1511 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1512 * other than Port Error 6 has been detected. 1513 **/ 1514 void 1515 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1516 { 1517 spin_lock_irq(&phba->hbalock); 1518 phba->link_state = LPFC_HBA_ERROR; 1519 spin_unlock_irq(&phba->hbalock); 1520 1521 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1522 lpfc_sli_flush_io_rings(phba); 1523 lpfc_offline(phba); 1524 lpfc_hba_down_post(phba); 1525 lpfc_unblock_mgmt_io(phba); 1526 } 1527 1528 /** 1529 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1530 * @phba: pointer to lpfc hba data structure. 1531 * 1532 * This routine is invoked to handle the deferred HBA hardware error 1533 * conditions. This type of error is indicated by HBA by setting ER1 1534 * and another ER bit in the host status register. The driver will 1535 * wait until the ER1 bit clears before handling the error condition. 1536 **/ 1537 static void 1538 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1539 { 1540 uint32_t old_host_status = phba->work_hs; 1541 struct lpfc_sli *psli = &phba->sli; 1542 1543 /* If the pci channel is offline, ignore possible errors, 1544 * since we cannot communicate with the pci card anyway. 1545 */ 1546 if (pci_channel_offline(phba->pcidev)) { 1547 spin_lock_irq(&phba->hbalock); 1548 phba->hba_flag &= ~DEFER_ERATT; 1549 spin_unlock_irq(&phba->hbalock); 1550 return; 1551 } 1552 1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1554 "0479 Deferred Adapter Hardware Error " 1555 "Data: x%x x%x x%x\n", 1556 phba->work_hs, 1557 phba->work_status[0], phba->work_status[1]); 1558 1559 spin_lock_irq(&phba->hbalock); 1560 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1561 spin_unlock_irq(&phba->hbalock); 1562 1563 1564 /* 1565 * Firmware stops when it triggred erratt. That could cause the I/Os 1566 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1567 * SCSI layer retry it after re-establishing link. 1568 */ 1569 lpfc_sli_abort_fcp_rings(phba); 1570 1571 /* 1572 * There was a firmware error. Take the hba offline and then 1573 * attempt to restart it. 1574 */ 1575 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1576 lpfc_offline(phba); 1577 1578 /* Wait for the ER1 bit to clear.*/ 1579 while (phba->work_hs & HS_FFER1) { 1580 msleep(100); 1581 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1582 phba->work_hs = UNPLUG_ERR ; 1583 break; 1584 } 1585 /* If driver is unloading let the worker thread continue */ 1586 if (phba->pport->load_flag & FC_UNLOADING) { 1587 phba->work_hs = 0; 1588 break; 1589 } 1590 } 1591 1592 /* 1593 * This is to ptrotect against a race condition in which 1594 * first write to the host attention register clear the 1595 * host status register. 1596 */ 1597 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1598 phba->work_hs = old_host_status & ~HS_FFER1; 1599 1600 spin_lock_irq(&phba->hbalock); 1601 phba->hba_flag &= ~DEFER_ERATT; 1602 spin_unlock_irq(&phba->hbalock); 1603 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1604 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1605 } 1606 1607 static void 1608 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1609 { 1610 struct lpfc_board_event_header board_event; 1611 struct Scsi_Host *shost; 1612 1613 board_event.event_type = FC_REG_BOARD_EVENT; 1614 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1615 shost = lpfc_shost_from_vport(phba->pport); 1616 fc_host_post_vendor_event(shost, fc_get_event_number(), 1617 sizeof(board_event), 1618 (char *) &board_event, 1619 LPFC_NL_VENDOR_ID); 1620 } 1621 1622 /** 1623 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1624 * @phba: pointer to lpfc hba data structure. 1625 * 1626 * This routine is invoked to handle the following HBA hardware error 1627 * conditions: 1628 * 1 - HBA error attention interrupt 1629 * 2 - DMA ring index out of range 1630 * 3 - Mailbox command came back as unknown 1631 **/ 1632 static void 1633 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1634 { 1635 struct lpfc_vport *vport = phba->pport; 1636 struct lpfc_sli *psli = &phba->sli; 1637 uint32_t event_data; 1638 unsigned long temperature; 1639 struct temp_event temp_event_data; 1640 struct Scsi_Host *shost; 1641 1642 /* If the pci channel is offline, ignore possible errors, 1643 * since we cannot communicate with the pci card anyway. 1644 */ 1645 if (pci_channel_offline(phba->pcidev)) { 1646 spin_lock_irq(&phba->hbalock); 1647 phba->hba_flag &= ~DEFER_ERATT; 1648 spin_unlock_irq(&phba->hbalock); 1649 return; 1650 } 1651 1652 /* If resets are disabled then leave the HBA alone and return */ 1653 if (!phba->cfg_enable_hba_reset) 1654 return; 1655 1656 /* Send an internal error event to mgmt application */ 1657 lpfc_board_errevt_to_mgmt(phba); 1658 1659 if (phba->hba_flag & DEFER_ERATT) 1660 lpfc_handle_deferred_eratt(phba); 1661 1662 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1663 if (phba->work_hs & HS_FFER6) 1664 /* Re-establishing Link */ 1665 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1666 "1301 Re-establishing Link " 1667 "Data: x%x x%x x%x\n", 1668 phba->work_hs, phba->work_status[0], 1669 phba->work_status[1]); 1670 if (phba->work_hs & HS_FFER8) 1671 /* Device Zeroization */ 1672 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1673 "2861 Host Authentication device " 1674 "zeroization Data:x%x x%x x%x\n", 1675 phba->work_hs, phba->work_status[0], 1676 phba->work_status[1]); 1677 1678 spin_lock_irq(&phba->hbalock); 1679 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1680 spin_unlock_irq(&phba->hbalock); 1681 1682 /* 1683 * Firmware stops when it triggled erratt with HS_FFER6. 1684 * That could cause the I/Os dropped by the firmware. 1685 * Error iocb (I/O) on txcmplq and let the SCSI layer 1686 * retry it after re-establishing link. 1687 */ 1688 lpfc_sli_abort_fcp_rings(phba); 1689 1690 /* 1691 * There was a firmware error. Take the hba offline and then 1692 * attempt to restart it. 1693 */ 1694 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1695 lpfc_offline(phba); 1696 lpfc_sli_brdrestart(phba); 1697 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1698 lpfc_unblock_mgmt_io(phba); 1699 return; 1700 } 1701 lpfc_unblock_mgmt_io(phba); 1702 } else if (phba->work_hs & HS_CRIT_TEMP) { 1703 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1704 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1705 temp_event_data.event_code = LPFC_CRIT_TEMP; 1706 temp_event_data.data = (uint32_t)temperature; 1707 1708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1709 "0406 Adapter maximum temperature exceeded " 1710 "(%ld), taking this port offline " 1711 "Data: x%x x%x x%x\n", 1712 temperature, phba->work_hs, 1713 phba->work_status[0], phba->work_status[1]); 1714 1715 shost = lpfc_shost_from_vport(phba->pport); 1716 fc_host_post_vendor_event(shost, fc_get_event_number(), 1717 sizeof(temp_event_data), 1718 (char *) &temp_event_data, 1719 SCSI_NL_VID_TYPE_PCI 1720 | PCI_VENDOR_ID_EMULEX); 1721 1722 spin_lock_irq(&phba->hbalock); 1723 phba->over_temp_state = HBA_OVER_TEMP; 1724 spin_unlock_irq(&phba->hbalock); 1725 lpfc_offline_eratt(phba); 1726 1727 } else { 1728 /* The if clause above forces this code path when the status 1729 * failure is a value other than FFER6. Do not call the offline 1730 * twice. This is the adapter hardware error path. 1731 */ 1732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1733 "0457 Adapter Hardware Error " 1734 "Data: x%x x%x x%x\n", 1735 phba->work_hs, 1736 phba->work_status[0], phba->work_status[1]); 1737 1738 event_data = FC_REG_DUMP_EVENT; 1739 shost = lpfc_shost_from_vport(vport); 1740 fc_host_post_vendor_event(shost, fc_get_event_number(), 1741 sizeof(event_data), (char *) &event_data, 1742 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1743 1744 lpfc_offline_eratt(phba); 1745 } 1746 return; 1747 } 1748 1749 /** 1750 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1751 * @phba: pointer to lpfc hba data structure. 1752 * @mbx_action: flag for mailbox shutdown action. 1753 * 1754 * This routine is invoked to perform an SLI4 port PCI function reset in 1755 * response to port status register polling attention. It waits for port 1756 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1757 * During this process, interrupt vectors are freed and later requested 1758 * for handling possible port resource change. 1759 **/ 1760 static int 1761 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1762 bool en_rn_msg) 1763 { 1764 int rc; 1765 uint32_t intr_mode; 1766 1767 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 1768 LPFC_SLI_INTF_IF_TYPE_2) { 1769 /* 1770 * On error status condition, driver need to wait for port 1771 * ready before performing reset. 1772 */ 1773 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1774 if (rc) 1775 return rc; 1776 } 1777 1778 /* need reset: attempt for port recovery */ 1779 if (en_rn_msg) 1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1781 "2887 Reset Needed: Attempting Port " 1782 "Recovery...\n"); 1783 lpfc_offline_prep(phba, mbx_action); 1784 lpfc_sli_flush_io_rings(phba); 1785 lpfc_offline(phba); 1786 /* release interrupt for possible resource change */ 1787 lpfc_sli4_disable_intr(phba); 1788 rc = lpfc_sli_brdrestart(phba); 1789 if (rc) { 1790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1791 "6309 Failed to restart board\n"); 1792 return rc; 1793 } 1794 /* request and enable interrupt */ 1795 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1796 if (intr_mode == LPFC_INTR_ERROR) { 1797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1798 "3175 Failed to enable interrupt\n"); 1799 return -EIO; 1800 } 1801 phba->intr_mode = intr_mode; 1802 rc = lpfc_online(phba); 1803 if (rc == 0) 1804 lpfc_unblock_mgmt_io(phba); 1805 1806 return rc; 1807 } 1808 1809 /** 1810 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1811 * @phba: pointer to lpfc hba data structure. 1812 * 1813 * This routine is invoked to handle the SLI4 HBA hardware error attention 1814 * conditions. 1815 **/ 1816 static void 1817 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1818 { 1819 struct lpfc_vport *vport = phba->pport; 1820 uint32_t event_data; 1821 struct Scsi_Host *shost; 1822 uint32_t if_type; 1823 struct lpfc_register portstat_reg = {0}; 1824 uint32_t reg_err1, reg_err2; 1825 uint32_t uerrlo_reg, uemasklo_reg; 1826 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1827 bool en_rn_msg = true; 1828 struct temp_event temp_event_data; 1829 struct lpfc_register portsmphr_reg; 1830 int rc, i; 1831 1832 /* If the pci channel is offline, ignore possible errors, since 1833 * we cannot communicate with the pci card anyway. 1834 */ 1835 if (pci_channel_offline(phba->pcidev)) { 1836 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1837 "3166 pci channel is offline\n"); 1838 lpfc_sli4_offline_eratt(phba); 1839 return; 1840 } 1841 1842 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1843 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1844 switch (if_type) { 1845 case LPFC_SLI_INTF_IF_TYPE_0: 1846 pci_rd_rc1 = lpfc_readl( 1847 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1848 &uerrlo_reg); 1849 pci_rd_rc2 = lpfc_readl( 1850 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1851 &uemasklo_reg); 1852 /* consider PCI bus read error as pci_channel_offline */ 1853 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1854 return; 1855 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1856 lpfc_sli4_offline_eratt(phba); 1857 return; 1858 } 1859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1860 "7623 Checking UE recoverable"); 1861 1862 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1863 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1864 &portsmphr_reg.word0)) 1865 continue; 1866 1867 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1868 &portsmphr_reg); 1869 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1870 LPFC_PORT_SEM_UE_RECOVERABLE) 1871 break; 1872 /*Sleep for 1Sec, before checking SEMAPHORE */ 1873 msleep(1000); 1874 } 1875 1876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1877 "4827 smphr_port_status x%x : Waited %dSec", 1878 smphr_port_status, i); 1879 1880 /* Recoverable UE, reset the HBA device */ 1881 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1882 LPFC_PORT_SEM_UE_RECOVERABLE) { 1883 for (i = 0; i < 20; i++) { 1884 msleep(1000); 1885 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1886 &portsmphr_reg.word0) && 1887 (LPFC_POST_STAGE_PORT_READY == 1888 bf_get(lpfc_port_smphr_port_status, 1889 &portsmphr_reg))) { 1890 rc = lpfc_sli4_port_sta_fn_reset(phba, 1891 LPFC_MBX_NO_WAIT, en_rn_msg); 1892 if (rc == 0) 1893 return; 1894 lpfc_printf_log(phba, 1895 KERN_ERR, LOG_INIT, 1896 "4215 Failed to recover UE"); 1897 break; 1898 } 1899 } 1900 } 1901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1902 "7624 Firmware not ready: Failing UE recovery," 1903 " waited %dSec", i); 1904 phba->link_state = LPFC_HBA_ERROR; 1905 break; 1906 1907 case LPFC_SLI_INTF_IF_TYPE_2: 1908 case LPFC_SLI_INTF_IF_TYPE_6: 1909 pci_rd_rc1 = lpfc_readl( 1910 phba->sli4_hba.u.if_type2.STATUSregaddr, 1911 &portstat_reg.word0); 1912 /* consider PCI bus read error as pci_channel_offline */ 1913 if (pci_rd_rc1 == -EIO) { 1914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1915 "3151 PCI bus read access failure: x%x\n", 1916 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1917 lpfc_sli4_offline_eratt(phba); 1918 return; 1919 } 1920 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1921 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1922 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1924 "2889 Port Overtemperature event, " 1925 "taking port offline Data: x%x x%x\n", 1926 reg_err1, reg_err2); 1927 1928 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1929 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1930 temp_event_data.event_code = LPFC_CRIT_TEMP; 1931 temp_event_data.data = 0xFFFFFFFF; 1932 1933 shost = lpfc_shost_from_vport(phba->pport); 1934 fc_host_post_vendor_event(shost, fc_get_event_number(), 1935 sizeof(temp_event_data), 1936 (char *)&temp_event_data, 1937 SCSI_NL_VID_TYPE_PCI 1938 | PCI_VENDOR_ID_EMULEX); 1939 1940 spin_lock_irq(&phba->hbalock); 1941 phba->over_temp_state = HBA_OVER_TEMP; 1942 spin_unlock_irq(&phba->hbalock); 1943 lpfc_sli4_offline_eratt(phba); 1944 return; 1945 } 1946 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1947 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1949 "3143 Port Down: Firmware Update " 1950 "Detected\n"); 1951 en_rn_msg = false; 1952 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1953 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1955 "3144 Port Down: Debug Dump\n"); 1956 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1957 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1959 "3145 Port Down: Provisioning\n"); 1960 1961 /* If resets are disabled then leave the HBA alone and return */ 1962 if (!phba->cfg_enable_hba_reset) 1963 return; 1964 1965 /* Check port status register for function reset */ 1966 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1967 en_rn_msg); 1968 if (rc == 0) { 1969 /* don't report event on forced debug dump */ 1970 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1971 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1972 return; 1973 else 1974 break; 1975 } 1976 /* fall through for not able to recover */ 1977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1978 "3152 Unrecoverable error\n"); 1979 phba->link_state = LPFC_HBA_ERROR; 1980 break; 1981 case LPFC_SLI_INTF_IF_TYPE_1: 1982 default: 1983 break; 1984 } 1985 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1986 "3123 Report dump event to upper layer\n"); 1987 /* Send an internal error event to mgmt application */ 1988 lpfc_board_errevt_to_mgmt(phba); 1989 1990 event_data = FC_REG_DUMP_EVENT; 1991 shost = lpfc_shost_from_vport(vport); 1992 fc_host_post_vendor_event(shost, fc_get_event_number(), 1993 sizeof(event_data), (char *) &event_data, 1994 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1995 } 1996 1997 /** 1998 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1999 * @phba: pointer to lpfc HBA data structure. 2000 * 2001 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 2002 * routine from the API jump table function pointer from the lpfc_hba struct. 2003 * 2004 * Return codes 2005 * 0 - success. 2006 * Any other value - error. 2007 **/ 2008 void 2009 lpfc_handle_eratt(struct lpfc_hba *phba) 2010 { 2011 (*phba->lpfc_handle_eratt)(phba); 2012 } 2013 2014 /** 2015 * lpfc_handle_latt - The HBA link event handler 2016 * @phba: pointer to lpfc hba data structure. 2017 * 2018 * This routine is invoked from the worker thread to handle a HBA host 2019 * attention link event. SLI3 only. 2020 **/ 2021 void 2022 lpfc_handle_latt(struct lpfc_hba *phba) 2023 { 2024 struct lpfc_vport *vport = phba->pport; 2025 struct lpfc_sli *psli = &phba->sli; 2026 LPFC_MBOXQ_t *pmb; 2027 volatile uint32_t control; 2028 struct lpfc_dmabuf *mp; 2029 int rc = 0; 2030 2031 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2032 if (!pmb) { 2033 rc = 1; 2034 goto lpfc_handle_latt_err_exit; 2035 } 2036 2037 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2038 if (!mp) { 2039 rc = 2; 2040 goto lpfc_handle_latt_free_pmb; 2041 } 2042 2043 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2044 if (!mp->virt) { 2045 rc = 3; 2046 goto lpfc_handle_latt_free_mp; 2047 } 2048 2049 /* Cleanup any outstanding ELS commands */ 2050 lpfc_els_flush_all_cmd(phba); 2051 2052 psli->slistat.link_event++; 2053 lpfc_read_topology(phba, pmb, mp); 2054 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 2055 pmb->vport = vport; 2056 /* Block ELS IOCBs until we have processed this mbox command */ 2057 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2058 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 2059 if (rc == MBX_NOT_FINISHED) { 2060 rc = 4; 2061 goto lpfc_handle_latt_free_mbuf; 2062 } 2063 2064 /* Clear Link Attention in HA REG */ 2065 spin_lock_irq(&phba->hbalock); 2066 writel(HA_LATT, phba->HAregaddr); 2067 readl(phba->HAregaddr); /* flush */ 2068 spin_unlock_irq(&phba->hbalock); 2069 2070 return; 2071 2072 lpfc_handle_latt_free_mbuf: 2073 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2074 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2075 lpfc_handle_latt_free_mp: 2076 kfree(mp); 2077 lpfc_handle_latt_free_pmb: 2078 mempool_free(pmb, phba->mbox_mem_pool); 2079 lpfc_handle_latt_err_exit: 2080 /* Enable Link attention interrupts */ 2081 spin_lock_irq(&phba->hbalock); 2082 psli->sli_flag |= LPFC_PROCESS_LA; 2083 control = readl(phba->HCregaddr); 2084 control |= HC_LAINT_ENA; 2085 writel(control, phba->HCregaddr); 2086 readl(phba->HCregaddr); /* flush */ 2087 2088 /* Clear Link Attention in HA REG */ 2089 writel(HA_LATT, phba->HAregaddr); 2090 readl(phba->HAregaddr); /* flush */ 2091 spin_unlock_irq(&phba->hbalock); 2092 lpfc_linkdown(phba); 2093 phba->link_state = LPFC_HBA_ERROR; 2094 2095 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2096 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 2097 2098 return; 2099 } 2100 2101 /** 2102 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 2103 * @phba: pointer to lpfc hba data structure. 2104 * @vpd: pointer to the vital product data. 2105 * @len: length of the vital product data in bytes. 2106 * 2107 * This routine parses the Vital Product Data (VPD). The VPD is treated as 2108 * an array of characters. In this routine, the ModelName, ProgramType, and 2109 * ModelDesc, etc. fields of the phba data structure will be populated. 2110 * 2111 * Return codes 2112 * 0 - pointer to the VPD passed in is NULL 2113 * 1 - success 2114 **/ 2115 int 2116 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 2117 { 2118 uint8_t lenlo, lenhi; 2119 int Length; 2120 int i, j; 2121 int finished = 0; 2122 int index = 0; 2123 2124 if (!vpd) 2125 return 0; 2126 2127 /* Vital Product */ 2128 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2129 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2130 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2131 (uint32_t) vpd[3]); 2132 while (!finished && (index < (len - 4))) { 2133 switch (vpd[index]) { 2134 case 0x82: 2135 case 0x91: 2136 index += 1; 2137 lenlo = vpd[index]; 2138 index += 1; 2139 lenhi = vpd[index]; 2140 index += 1; 2141 i = ((((unsigned short)lenhi) << 8) + lenlo); 2142 index += i; 2143 break; 2144 case 0x90: 2145 index += 1; 2146 lenlo = vpd[index]; 2147 index += 1; 2148 lenhi = vpd[index]; 2149 index += 1; 2150 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2151 if (Length > len - index) 2152 Length = len - index; 2153 while (Length > 0) { 2154 /* Look for Serial Number */ 2155 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2156 index += 2; 2157 i = vpd[index]; 2158 index += 1; 2159 j = 0; 2160 Length -= (3+i); 2161 while(i--) { 2162 phba->SerialNumber[j++] = vpd[index++]; 2163 if (j == 31) 2164 break; 2165 } 2166 phba->SerialNumber[j] = 0; 2167 continue; 2168 } 2169 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2170 phba->vpd_flag |= VPD_MODEL_DESC; 2171 index += 2; 2172 i = vpd[index]; 2173 index += 1; 2174 j = 0; 2175 Length -= (3+i); 2176 while(i--) { 2177 phba->ModelDesc[j++] = vpd[index++]; 2178 if (j == 255) 2179 break; 2180 } 2181 phba->ModelDesc[j] = 0; 2182 continue; 2183 } 2184 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2185 phba->vpd_flag |= VPD_MODEL_NAME; 2186 index += 2; 2187 i = vpd[index]; 2188 index += 1; 2189 j = 0; 2190 Length -= (3+i); 2191 while(i--) { 2192 phba->ModelName[j++] = vpd[index++]; 2193 if (j == 79) 2194 break; 2195 } 2196 phba->ModelName[j] = 0; 2197 continue; 2198 } 2199 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2200 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2201 index += 2; 2202 i = vpd[index]; 2203 index += 1; 2204 j = 0; 2205 Length -= (3+i); 2206 while(i--) { 2207 phba->ProgramType[j++] = vpd[index++]; 2208 if (j == 255) 2209 break; 2210 } 2211 phba->ProgramType[j] = 0; 2212 continue; 2213 } 2214 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2215 phba->vpd_flag |= VPD_PORT; 2216 index += 2; 2217 i = vpd[index]; 2218 index += 1; 2219 j = 0; 2220 Length -= (3+i); 2221 while(i--) { 2222 if ((phba->sli_rev == LPFC_SLI_REV4) && 2223 (phba->sli4_hba.pport_name_sta == 2224 LPFC_SLI4_PPNAME_GET)) { 2225 j++; 2226 index++; 2227 } else 2228 phba->Port[j++] = vpd[index++]; 2229 if (j == 19) 2230 break; 2231 } 2232 if ((phba->sli_rev != LPFC_SLI_REV4) || 2233 (phba->sli4_hba.pport_name_sta == 2234 LPFC_SLI4_PPNAME_NON)) 2235 phba->Port[j] = 0; 2236 continue; 2237 } 2238 else { 2239 index += 2; 2240 i = vpd[index]; 2241 index += 1; 2242 index += i; 2243 Length -= (3 + i); 2244 } 2245 } 2246 finished = 0; 2247 break; 2248 case 0x78: 2249 finished = 1; 2250 break; 2251 default: 2252 index ++; 2253 break; 2254 } 2255 } 2256 2257 return(1); 2258 } 2259 2260 /** 2261 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2262 * @phba: pointer to lpfc hba data structure. 2263 * @mdp: pointer to the data structure to hold the derived model name. 2264 * @descp: pointer to the data structure to hold the derived description. 2265 * 2266 * This routine retrieves HBA's description based on its registered PCI device 2267 * ID. The @descp passed into this function points to an array of 256 chars. It 2268 * shall be returned with the model name, maximum speed, and the host bus type. 2269 * The @mdp passed into this function points to an array of 80 chars. When the 2270 * function returns, the @mdp will be filled with the model name. 2271 **/ 2272 static void 2273 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2274 { 2275 lpfc_vpd_t *vp; 2276 uint16_t dev_id = phba->pcidev->device; 2277 int max_speed; 2278 int GE = 0; 2279 int oneConnect = 0; /* default is not a oneConnect */ 2280 struct { 2281 char *name; 2282 char *bus; 2283 char *function; 2284 } m = {"<Unknown>", "", ""}; 2285 2286 if (mdp && mdp[0] != '\0' 2287 && descp && descp[0] != '\0') 2288 return; 2289 2290 if (phba->lmt & LMT_64Gb) 2291 max_speed = 64; 2292 else if (phba->lmt & LMT_32Gb) 2293 max_speed = 32; 2294 else if (phba->lmt & LMT_16Gb) 2295 max_speed = 16; 2296 else if (phba->lmt & LMT_10Gb) 2297 max_speed = 10; 2298 else if (phba->lmt & LMT_8Gb) 2299 max_speed = 8; 2300 else if (phba->lmt & LMT_4Gb) 2301 max_speed = 4; 2302 else if (phba->lmt & LMT_2Gb) 2303 max_speed = 2; 2304 else if (phba->lmt & LMT_1Gb) 2305 max_speed = 1; 2306 else 2307 max_speed = 0; 2308 2309 vp = &phba->vpd; 2310 2311 switch (dev_id) { 2312 case PCI_DEVICE_ID_FIREFLY: 2313 m = (typeof(m)){"LP6000", "PCI", 2314 "Obsolete, Unsupported Fibre Channel Adapter"}; 2315 break; 2316 case PCI_DEVICE_ID_SUPERFLY: 2317 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2318 m = (typeof(m)){"LP7000", "PCI", ""}; 2319 else 2320 m = (typeof(m)){"LP7000E", "PCI", ""}; 2321 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2322 break; 2323 case PCI_DEVICE_ID_DRAGONFLY: 2324 m = (typeof(m)){"LP8000", "PCI", 2325 "Obsolete, Unsupported Fibre Channel Adapter"}; 2326 break; 2327 case PCI_DEVICE_ID_CENTAUR: 2328 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2329 m = (typeof(m)){"LP9002", "PCI", ""}; 2330 else 2331 m = (typeof(m)){"LP9000", "PCI", ""}; 2332 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2333 break; 2334 case PCI_DEVICE_ID_RFLY: 2335 m = (typeof(m)){"LP952", "PCI", 2336 "Obsolete, Unsupported Fibre Channel Adapter"}; 2337 break; 2338 case PCI_DEVICE_ID_PEGASUS: 2339 m = (typeof(m)){"LP9802", "PCI-X", 2340 "Obsolete, Unsupported Fibre Channel Adapter"}; 2341 break; 2342 case PCI_DEVICE_ID_THOR: 2343 m = (typeof(m)){"LP10000", "PCI-X", 2344 "Obsolete, Unsupported Fibre Channel Adapter"}; 2345 break; 2346 case PCI_DEVICE_ID_VIPER: 2347 m = (typeof(m)){"LPX1000", "PCI-X", 2348 "Obsolete, Unsupported Fibre Channel Adapter"}; 2349 break; 2350 case PCI_DEVICE_ID_PFLY: 2351 m = (typeof(m)){"LP982", "PCI-X", 2352 "Obsolete, Unsupported Fibre Channel Adapter"}; 2353 break; 2354 case PCI_DEVICE_ID_TFLY: 2355 m = (typeof(m)){"LP1050", "PCI-X", 2356 "Obsolete, Unsupported Fibre Channel Adapter"}; 2357 break; 2358 case PCI_DEVICE_ID_HELIOS: 2359 m = (typeof(m)){"LP11000", "PCI-X2", 2360 "Obsolete, Unsupported Fibre Channel Adapter"}; 2361 break; 2362 case PCI_DEVICE_ID_HELIOS_SCSP: 2363 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2364 "Obsolete, Unsupported Fibre Channel Adapter"}; 2365 break; 2366 case PCI_DEVICE_ID_HELIOS_DCSP: 2367 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2368 "Obsolete, Unsupported Fibre Channel Adapter"}; 2369 break; 2370 case PCI_DEVICE_ID_NEPTUNE: 2371 m = (typeof(m)){"LPe1000", "PCIe", 2372 "Obsolete, Unsupported Fibre Channel Adapter"}; 2373 break; 2374 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2375 m = (typeof(m)){"LPe1000-SP", "PCIe", 2376 "Obsolete, Unsupported Fibre Channel Adapter"}; 2377 break; 2378 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2379 m = (typeof(m)){"LPe1002-SP", "PCIe", 2380 "Obsolete, Unsupported Fibre Channel Adapter"}; 2381 break; 2382 case PCI_DEVICE_ID_BMID: 2383 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2384 break; 2385 case PCI_DEVICE_ID_BSMB: 2386 m = (typeof(m)){"LP111", "PCI-X2", 2387 "Obsolete, Unsupported Fibre Channel Adapter"}; 2388 break; 2389 case PCI_DEVICE_ID_ZEPHYR: 2390 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2391 break; 2392 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2393 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2394 break; 2395 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2396 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2397 GE = 1; 2398 break; 2399 case PCI_DEVICE_ID_ZMID: 2400 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2401 break; 2402 case PCI_DEVICE_ID_ZSMB: 2403 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2404 break; 2405 case PCI_DEVICE_ID_LP101: 2406 m = (typeof(m)){"LP101", "PCI-X", 2407 "Obsolete, Unsupported Fibre Channel Adapter"}; 2408 break; 2409 case PCI_DEVICE_ID_LP10000S: 2410 m = (typeof(m)){"LP10000-S", "PCI", 2411 "Obsolete, Unsupported Fibre Channel Adapter"}; 2412 break; 2413 case PCI_DEVICE_ID_LP11000S: 2414 m = (typeof(m)){"LP11000-S", "PCI-X2", 2415 "Obsolete, Unsupported Fibre Channel Adapter"}; 2416 break; 2417 case PCI_DEVICE_ID_LPE11000S: 2418 m = (typeof(m)){"LPe11000-S", "PCIe", 2419 "Obsolete, Unsupported Fibre Channel Adapter"}; 2420 break; 2421 case PCI_DEVICE_ID_SAT: 2422 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2423 break; 2424 case PCI_DEVICE_ID_SAT_MID: 2425 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2426 break; 2427 case PCI_DEVICE_ID_SAT_SMB: 2428 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2429 break; 2430 case PCI_DEVICE_ID_SAT_DCSP: 2431 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2432 break; 2433 case PCI_DEVICE_ID_SAT_SCSP: 2434 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2435 break; 2436 case PCI_DEVICE_ID_SAT_S: 2437 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2438 break; 2439 case PCI_DEVICE_ID_HORNET: 2440 m = (typeof(m)){"LP21000", "PCIe", 2441 "Obsolete, Unsupported FCoE Adapter"}; 2442 GE = 1; 2443 break; 2444 case PCI_DEVICE_ID_PROTEUS_VF: 2445 m = (typeof(m)){"LPev12000", "PCIe IOV", 2446 "Obsolete, Unsupported Fibre Channel Adapter"}; 2447 break; 2448 case PCI_DEVICE_ID_PROTEUS_PF: 2449 m = (typeof(m)){"LPev12000", "PCIe IOV", 2450 "Obsolete, Unsupported Fibre Channel Adapter"}; 2451 break; 2452 case PCI_DEVICE_ID_PROTEUS_S: 2453 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2454 "Obsolete, Unsupported Fibre Channel Adapter"}; 2455 break; 2456 case PCI_DEVICE_ID_TIGERSHARK: 2457 oneConnect = 1; 2458 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2459 break; 2460 case PCI_DEVICE_ID_TOMCAT: 2461 oneConnect = 1; 2462 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2463 break; 2464 case PCI_DEVICE_ID_FALCON: 2465 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2466 "EmulexSecure Fibre"}; 2467 break; 2468 case PCI_DEVICE_ID_BALIUS: 2469 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2470 "Obsolete, Unsupported Fibre Channel Adapter"}; 2471 break; 2472 case PCI_DEVICE_ID_LANCER_FC: 2473 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2474 break; 2475 case PCI_DEVICE_ID_LANCER_FC_VF: 2476 m = (typeof(m)){"LPe16000", "PCIe", 2477 "Obsolete, Unsupported Fibre Channel Adapter"}; 2478 break; 2479 case PCI_DEVICE_ID_LANCER_FCOE: 2480 oneConnect = 1; 2481 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2482 break; 2483 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2484 oneConnect = 1; 2485 m = (typeof(m)){"OCe15100", "PCIe", 2486 "Obsolete, Unsupported FCoE"}; 2487 break; 2488 case PCI_DEVICE_ID_LANCER_G6_FC: 2489 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2490 break; 2491 case PCI_DEVICE_ID_LANCER_G7_FC: 2492 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"}; 2493 break; 2494 case PCI_DEVICE_ID_SKYHAWK: 2495 case PCI_DEVICE_ID_SKYHAWK_VF: 2496 oneConnect = 1; 2497 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2498 break; 2499 default: 2500 m = (typeof(m)){"Unknown", "", ""}; 2501 break; 2502 } 2503 2504 if (mdp && mdp[0] == '\0') 2505 snprintf(mdp, 79,"%s", m.name); 2506 /* 2507 * oneConnect hba requires special processing, they are all initiators 2508 * and we put the port number on the end 2509 */ 2510 if (descp && descp[0] == '\0') { 2511 if (oneConnect) 2512 snprintf(descp, 255, 2513 "Emulex OneConnect %s, %s Initiator %s", 2514 m.name, m.function, 2515 phba->Port); 2516 else if (max_speed == 0) 2517 snprintf(descp, 255, 2518 "Emulex %s %s %s", 2519 m.name, m.bus, m.function); 2520 else 2521 snprintf(descp, 255, 2522 "Emulex %s %d%s %s %s", 2523 m.name, max_speed, (GE) ? "GE" : "Gb", 2524 m.bus, m.function); 2525 } 2526 } 2527 2528 /** 2529 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2530 * @phba: pointer to lpfc hba data structure. 2531 * @pring: pointer to a IOCB ring. 2532 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2533 * 2534 * This routine posts a given number of IOCBs with the associated DMA buffer 2535 * descriptors specified by the cnt argument to the given IOCB ring. 2536 * 2537 * Return codes 2538 * The number of IOCBs NOT able to be posted to the IOCB ring. 2539 **/ 2540 int 2541 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2542 { 2543 IOCB_t *icmd; 2544 struct lpfc_iocbq *iocb; 2545 struct lpfc_dmabuf *mp1, *mp2; 2546 2547 cnt += pring->missbufcnt; 2548 2549 /* While there are buffers to post */ 2550 while (cnt > 0) { 2551 /* Allocate buffer for command iocb */ 2552 iocb = lpfc_sli_get_iocbq(phba); 2553 if (iocb == NULL) { 2554 pring->missbufcnt = cnt; 2555 return cnt; 2556 } 2557 icmd = &iocb->iocb; 2558 2559 /* 2 buffers can be posted per command */ 2560 /* Allocate buffer to post */ 2561 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2562 if (mp1) 2563 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2564 if (!mp1 || !mp1->virt) { 2565 kfree(mp1); 2566 lpfc_sli_release_iocbq(phba, iocb); 2567 pring->missbufcnt = cnt; 2568 return cnt; 2569 } 2570 2571 INIT_LIST_HEAD(&mp1->list); 2572 /* Allocate buffer to post */ 2573 if (cnt > 1) { 2574 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2575 if (mp2) 2576 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2577 &mp2->phys); 2578 if (!mp2 || !mp2->virt) { 2579 kfree(mp2); 2580 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2581 kfree(mp1); 2582 lpfc_sli_release_iocbq(phba, iocb); 2583 pring->missbufcnt = cnt; 2584 return cnt; 2585 } 2586 2587 INIT_LIST_HEAD(&mp2->list); 2588 } else { 2589 mp2 = NULL; 2590 } 2591 2592 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2593 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2594 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2595 icmd->ulpBdeCount = 1; 2596 cnt--; 2597 if (mp2) { 2598 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2599 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2600 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2601 cnt--; 2602 icmd->ulpBdeCount = 2; 2603 } 2604 2605 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2606 icmd->ulpLe = 1; 2607 2608 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2609 IOCB_ERROR) { 2610 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2611 kfree(mp1); 2612 cnt++; 2613 if (mp2) { 2614 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2615 kfree(mp2); 2616 cnt++; 2617 } 2618 lpfc_sli_release_iocbq(phba, iocb); 2619 pring->missbufcnt = cnt; 2620 return cnt; 2621 } 2622 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2623 if (mp2) 2624 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2625 } 2626 pring->missbufcnt = 0; 2627 return 0; 2628 } 2629 2630 /** 2631 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2632 * @phba: pointer to lpfc hba data structure. 2633 * 2634 * This routine posts initial receive IOCB buffers to the ELS ring. The 2635 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2636 * set to 64 IOCBs. SLI3 only. 2637 * 2638 * Return codes 2639 * 0 - success (currently always success) 2640 **/ 2641 static int 2642 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2643 { 2644 struct lpfc_sli *psli = &phba->sli; 2645 2646 /* Ring 0, ELS / CT buffers */ 2647 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2648 /* Ring 2 - FCP no buffers needed */ 2649 2650 return 0; 2651 } 2652 2653 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2654 2655 /** 2656 * lpfc_sha_init - Set up initial array of hash table entries 2657 * @HashResultPointer: pointer to an array as hash table. 2658 * 2659 * This routine sets up the initial values to the array of hash table entries 2660 * for the LC HBAs. 2661 **/ 2662 static void 2663 lpfc_sha_init(uint32_t * HashResultPointer) 2664 { 2665 HashResultPointer[0] = 0x67452301; 2666 HashResultPointer[1] = 0xEFCDAB89; 2667 HashResultPointer[2] = 0x98BADCFE; 2668 HashResultPointer[3] = 0x10325476; 2669 HashResultPointer[4] = 0xC3D2E1F0; 2670 } 2671 2672 /** 2673 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2674 * @HashResultPointer: pointer to an initial/result hash table. 2675 * @HashWorkingPointer: pointer to an working hash table. 2676 * 2677 * This routine iterates an initial hash table pointed by @HashResultPointer 2678 * with the values from the working hash table pointeed by @HashWorkingPointer. 2679 * The results are putting back to the initial hash table, returned through 2680 * the @HashResultPointer as the result hash table. 2681 **/ 2682 static void 2683 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2684 { 2685 int t; 2686 uint32_t TEMP; 2687 uint32_t A, B, C, D, E; 2688 t = 16; 2689 do { 2690 HashWorkingPointer[t] = 2691 S(1, 2692 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2693 8] ^ 2694 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2695 } while (++t <= 79); 2696 t = 0; 2697 A = HashResultPointer[0]; 2698 B = HashResultPointer[1]; 2699 C = HashResultPointer[2]; 2700 D = HashResultPointer[3]; 2701 E = HashResultPointer[4]; 2702 2703 do { 2704 if (t < 20) { 2705 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2706 } else if (t < 40) { 2707 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2708 } else if (t < 60) { 2709 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2710 } else { 2711 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2712 } 2713 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2714 E = D; 2715 D = C; 2716 C = S(30, B); 2717 B = A; 2718 A = TEMP; 2719 } while (++t <= 79); 2720 2721 HashResultPointer[0] += A; 2722 HashResultPointer[1] += B; 2723 HashResultPointer[2] += C; 2724 HashResultPointer[3] += D; 2725 HashResultPointer[4] += E; 2726 2727 } 2728 2729 /** 2730 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2731 * @RandomChallenge: pointer to the entry of host challenge random number array. 2732 * @HashWorking: pointer to the entry of the working hash array. 2733 * 2734 * This routine calculates the working hash array referred by @HashWorking 2735 * from the challenge random numbers associated with the host, referred by 2736 * @RandomChallenge. The result is put into the entry of the working hash 2737 * array and returned by reference through @HashWorking. 2738 **/ 2739 static void 2740 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2741 { 2742 *HashWorking = (*RandomChallenge ^ *HashWorking); 2743 } 2744 2745 /** 2746 * lpfc_hba_init - Perform special handling for LC HBA initialization 2747 * @phba: pointer to lpfc hba data structure. 2748 * @hbainit: pointer to an array of unsigned 32-bit integers. 2749 * 2750 * This routine performs the special handling for LC HBA initialization. 2751 **/ 2752 void 2753 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2754 { 2755 int t; 2756 uint32_t *HashWorking; 2757 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2758 2759 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2760 if (!HashWorking) 2761 return; 2762 2763 HashWorking[0] = HashWorking[78] = *pwwnn++; 2764 HashWorking[1] = HashWorking[79] = *pwwnn; 2765 2766 for (t = 0; t < 7; t++) 2767 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2768 2769 lpfc_sha_init(hbainit); 2770 lpfc_sha_iterate(hbainit, HashWorking); 2771 kfree(HashWorking); 2772 } 2773 2774 /** 2775 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2776 * @vport: pointer to a virtual N_Port data structure. 2777 * 2778 * This routine performs the necessary cleanups before deleting the @vport. 2779 * It invokes the discovery state machine to perform necessary state 2780 * transitions and to release the ndlps associated with the @vport. Note, 2781 * the physical port is treated as @vport 0. 2782 **/ 2783 void 2784 lpfc_cleanup(struct lpfc_vport *vport) 2785 { 2786 struct lpfc_hba *phba = vport->phba; 2787 struct lpfc_nodelist *ndlp, *next_ndlp; 2788 int i = 0; 2789 2790 if (phba->link_state > LPFC_LINK_DOWN) 2791 lpfc_port_link_failure(vport); 2792 2793 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2794 if (!NLP_CHK_NODE_ACT(ndlp)) { 2795 ndlp = lpfc_enable_node(vport, ndlp, 2796 NLP_STE_UNUSED_NODE); 2797 if (!ndlp) 2798 continue; 2799 spin_lock_irq(&phba->ndlp_lock); 2800 NLP_SET_FREE_REQ(ndlp); 2801 spin_unlock_irq(&phba->ndlp_lock); 2802 /* Trigger the release of the ndlp memory */ 2803 lpfc_nlp_put(ndlp); 2804 continue; 2805 } 2806 spin_lock_irq(&phba->ndlp_lock); 2807 if (NLP_CHK_FREE_REQ(ndlp)) { 2808 /* The ndlp should not be in memory free mode already */ 2809 spin_unlock_irq(&phba->ndlp_lock); 2810 continue; 2811 } else 2812 /* Indicate request for freeing ndlp memory */ 2813 NLP_SET_FREE_REQ(ndlp); 2814 spin_unlock_irq(&phba->ndlp_lock); 2815 2816 if (vport->port_type != LPFC_PHYSICAL_PORT && 2817 ndlp->nlp_DID == Fabric_DID) { 2818 /* Just free up ndlp with Fabric_DID for vports */ 2819 lpfc_nlp_put(ndlp); 2820 continue; 2821 } 2822 2823 /* take care of nodes in unused state before the state 2824 * machine taking action. 2825 */ 2826 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2827 lpfc_nlp_put(ndlp); 2828 continue; 2829 } 2830 2831 if (ndlp->nlp_type & NLP_FABRIC) 2832 lpfc_disc_state_machine(vport, ndlp, NULL, 2833 NLP_EVT_DEVICE_RECOVERY); 2834 2835 lpfc_disc_state_machine(vport, ndlp, NULL, 2836 NLP_EVT_DEVICE_RM); 2837 } 2838 2839 /* At this point, ALL ndlp's should be gone 2840 * because of the previous NLP_EVT_DEVICE_RM. 2841 * Lets wait for this to happen, if needed. 2842 */ 2843 while (!list_empty(&vport->fc_nodes)) { 2844 if (i++ > 3000) { 2845 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2846 "0233 Nodelist not empty\n"); 2847 list_for_each_entry_safe(ndlp, next_ndlp, 2848 &vport->fc_nodes, nlp_listp) { 2849 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2850 LOG_NODE, 2851 "0282 did:x%x ndlp:x%px " 2852 "usgmap:x%x refcnt:%d\n", 2853 ndlp->nlp_DID, (void *)ndlp, 2854 ndlp->nlp_usg_map, 2855 kref_read(&ndlp->kref)); 2856 } 2857 break; 2858 } 2859 2860 /* Wait for any activity on ndlps to settle */ 2861 msleep(10); 2862 } 2863 lpfc_cleanup_vports_rrqs(vport, NULL); 2864 } 2865 2866 /** 2867 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2868 * @vport: pointer to a virtual N_Port data structure. 2869 * 2870 * This routine stops all the timers associated with a @vport. This function 2871 * is invoked before disabling or deleting a @vport. Note that the physical 2872 * port is treated as @vport 0. 2873 **/ 2874 void 2875 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2876 { 2877 del_timer_sync(&vport->els_tmofunc); 2878 del_timer_sync(&vport->delayed_disc_tmo); 2879 lpfc_can_disctmo(vport); 2880 return; 2881 } 2882 2883 /** 2884 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2885 * @phba: pointer to lpfc hba data structure. 2886 * 2887 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2888 * caller of this routine should already hold the host lock. 2889 **/ 2890 void 2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2892 { 2893 /* Clear pending FCF rediscovery wait flag */ 2894 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2895 2896 /* Now, try to stop the timer */ 2897 del_timer(&phba->fcf.redisc_wait); 2898 } 2899 2900 /** 2901 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2902 * @phba: pointer to lpfc hba data structure. 2903 * 2904 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2905 * checks whether the FCF rediscovery wait timer is pending with the host 2906 * lock held before proceeding with disabling the timer and clearing the 2907 * wait timer pendig flag. 2908 **/ 2909 void 2910 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2911 { 2912 spin_lock_irq(&phba->hbalock); 2913 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2914 /* FCF rediscovery timer already fired or stopped */ 2915 spin_unlock_irq(&phba->hbalock); 2916 return; 2917 } 2918 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2919 /* Clear failover in progress flags */ 2920 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2921 spin_unlock_irq(&phba->hbalock); 2922 } 2923 2924 /** 2925 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2926 * @phba: pointer to lpfc hba data structure. 2927 * 2928 * This routine stops all the timers associated with a HBA. This function is 2929 * invoked before either putting a HBA offline or unloading the driver. 2930 **/ 2931 void 2932 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2933 { 2934 if (phba->pport) 2935 lpfc_stop_vport_timers(phba->pport); 2936 cancel_delayed_work_sync(&phba->eq_delay_work); 2937 del_timer_sync(&phba->sli.mbox_tmo); 2938 del_timer_sync(&phba->fabric_block_timer); 2939 del_timer_sync(&phba->eratt_poll); 2940 del_timer_sync(&phba->hb_tmofunc); 2941 if (phba->sli_rev == LPFC_SLI_REV4) { 2942 del_timer_sync(&phba->rrq_tmr); 2943 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2944 } 2945 phba->hb_outstanding = 0; 2946 2947 switch (phba->pci_dev_grp) { 2948 case LPFC_PCI_DEV_LP: 2949 /* Stop any LightPulse device specific driver timers */ 2950 del_timer_sync(&phba->fcp_poll_timer); 2951 break; 2952 case LPFC_PCI_DEV_OC: 2953 /* Stop any OneConnect device specific driver timers */ 2954 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2955 break; 2956 default: 2957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2958 "0297 Invalid device group (x%x)\n", 2959 phba->pci_dev_grp); 2960 break; 2961 } 2962 return; 2963 } 2964 2965 /** 2966 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2967 * @phba: pointer to lpfc hba data structure. 2968 * 2969 * This routine marks a HBA's management interface as blocked. Once the HBA's 2970 * management interface is marked as blocked, all the user space access to 2971 * the HBA, whether they are from sysfs interface or libdfc interface will 2972 * all be blocked. The HBA is set to block the management interface when the 2973 * driver prepares the HBA interface for online or offline. 2974 **/ 2975 static void 2976 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2977 { 2978 unsigned long iflag; 2979 uint8_t actcmd = MBX_HEARTBEAT; 2980 unsigned long timeout; 2981 2982 spin_lock_irqsave(&phba->hbalock, iflag); 2983 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2984 spin_unlock_irqrestore(&phba->hbalock, iflag); 2985 if (mbx_action == LPFC_MBX_NO_WAIT) 2986 return; 2987 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2988 spin_lock_irqsave(&phba->hbalock, iflag); 2989 if (phba->sli.mbox_active) { 2990 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2991 /* Determine how long we might wait for the active mailbox 2992 * command to be gracefully completed by firmware. 2993 */ 2994 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2995 phba->sli.mbox_active) * 1000) + jiffies; 2996 } 2997 spin_unlock_irqrestore(&phba->hbalock, iflag); 2998 2999 /* Wait for the outstnading mailbox command to complete */ 3000 while (phba->sli.mbox_active) { 3001 /* Check active mailbox complete status every 2ms */ 3002 msleep(2); 3003 if (time_after(jiffies, timeout)) { 3004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3005 "2813 Mgmt IO is Blocked %x " 3006 "- mbox cmd %x still active\n", 3007 phba->sli.sli_flag, actcmd); 3008 break; 3009 } 3010 } 3011 } 3012 3013 /** 3014 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 3015 * @phba: pointer to lpfc hba data structure. 3016 * 3017 * Allocate RPIs for all active remote nodes. This is needed whenever 3018 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 3019 * is to fixup the temporary rpi assignments. 3020 **/ 3021 void 3022 lpfc_sli4_node_prep(struct lpfc_hba *phba) 3023 { 3024 struct lpfc_nodelist *ndlp, *next_ndlp; 3025 struct lpfc_vport **vports; 3026 int i, rpi; 3027 unsigned long flags; 3028 3029 if (phba->sli_rev != LPFC_SLI_REV4) 3030 return; 3031 3032 vports = lpfc_create_vport_work_array(phba); 3033 if (vports == NULL) 3034 return; 3035 3036 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3037 if (vports[i]->load_flag & FC_UNLOADING) 3038 continue; 3039 3040 list_for_each_entry_safe(ndlp, next_ndlp, 3041 &vports[i]->fc_nodes, 3042 nlp_listp) { 3043 if (!NLP_CHK_NODE_ACT(ndlp)) 3044 continue; 3045 rpi = lpfc_sli4_alloc_rpi(phba); 3046 if (rpi == LPFC_RPI_ALLOC_ERROR) { 3047 spin_lock_irqsave(&phba->ndlp_lock, flags); 3048 NLP_CLR_NODE_ACT(ndlp); 3049 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3050 continue; 3051 } 3052 ndlp->nlp_rpi = rpi; 3053 lpfc_printf_vlog(ndlp->vport, KERN_INFO, 3054 LOG_NODE | LOG_DISCOVERY, 3055 "0009 Assign RPI x%x to ndlp x%px " 3056 "DID:x%06x flg:x%x map:x%x\n", 3057 ndlp->nlp_rpi, ndlp, ndlp->nlp_DID, 3058 ndlp->nlp_flag, ndlp->nlp_usg_map); 3059 } 3060 } 3061 lpfc_destroy_vport_work_array(phba, vports); 3062 } 3063 3064 /** 3065 * lpfc_create_expedite_pool - create expedite pool 3066 * @phba: pointer to lpfc hba data structure. 3067 * 3068 * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0 3069 * to expedite pool. Mark them as expedite. 3070 **/ 3071 static void lpfc_create_expedite_pool(struct lpfc_hba *phba) 3072 { 3073 struct lpfc_sli4_hdw_queue *qp; 3074 struct lpfc_io_buf *lpfc_ncmd; 3075 struct lpfc_io_buf *lpfc_ncmd_next; 3076 struct lpfc_epd_pool *epd_pool; 3077 unsigned long iflag; 3078 3079 epd_pool = &phba->epd_pool; 3080 qp = &phba->sli4_hba.hdwq[0]; 3081 3082 spin_lock_init(&epd_pool->lock); 3083 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag); 3084 spin_lock(&epd_pool->lock); 3085 INIT_LIST_HEAD(&epd_pool->list); 3086 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3087 &qp->lpfc_io_buf_list_put, list) { 3088 list_move_tail(&lpfc_ncmd->list, &epd_pool->list); 3089 lpfc_ncmd->expedite = true; 3090 qp->put_io_bufs--; 3091 epd_pool->count++; 3092 if (epd_pool->count >= XRI_BATCH) 3093 break; 3094 } 3095 spin_unlock(&epd_pool->lock); 3096 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag); 3097 } 3098 3099 /** 3100 * lpfc_destroy_expedite_pool - destroy expedite pool 3101 * @phba: pointer to lpfc hba data structure. 3102 * 3103 * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put 3104 * of HWQ 0. Clear the mark. 3105 **/ 3106 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba) 3107 { 3108 struct lpfc_sli4_hdw_queue *qp; 3109 struct lpfc_io_buf *lpfc_ncmd; 3110 struct lpfc_io_buf *lpfc_ncmd_next; 3111 struct lpfc_epd_pool *epd_pool; 3112 unsigned long iflag; 3113 3114 epd_pool = &phba->epd_pool; 3115 qp = &phba->sli4_hba.hdwq[0]; 3116 3117 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag); 3118 spin_lock(&epd_pool->lock); 3119 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3120 &epd_pool->list, list) { 3121 list_move_tail(&lpfc_ncmd->list, 3122 &qp->lpfc_io_buf_list_put); 3123 lpfc_ncmd->flags = false; 3124 qp->put_io_bufs++; 3125 epd_pool->count--; 3126 } 3127 spin_unlock(&epd_pool->lock); 3128 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag); 3129 } 3130 3131 /** 3132 * lpfc_create_multixri_pools - create multi-XRI pools 3133 * @phba: pointer to lpfc hba data structure. 3134 * 3135 * This routine initialize public, private per HWQ. Then, move XRIs from 3136 * lpfc_io_buf_list_put to public pool. High and low watermark are also 3137 * Initialized. 3138 **/ 3139 void lpfc_create_multixri_pools(struct lpfc_hba *phba) 3140 { 3141 u32 i, j; 3142 u32 hwq_count; 3143 u32 count_per_hwq; 3144 struct lpfc_io_buf *lpfc_ncmd; 3145 struct lpfc_io_buf *lpfc_ncmd_next; 3146 unsigned long iflag; 3147 struct lpfc_sli4_hdw_queue *qp; 3148 struct lpfc_multixri_pool *multixri_pool; 3149 struct lpfc_pbl_pool *pbl_pool; 3150 struct lpfc_pvt_pool *pvt_pool; 3151 3152 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3153 "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n", 3154 phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu, 3155 phba->sli4_hba.io_xri_cnt); 3156 3157 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3158 lpfc_create_expedite_pool(phba); 3159 3160 hwq_count = phba->cfg_hdw_queue; 3161 count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count; 3162 3163 for (i = 0; i < hwq_count; i++) { 3164 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL); 3165 3166 if (!multixri_pool) { 3167 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3168 "1238 Failed to allocate memory for " 3169 "multixri_pool\n"); 3170 3171 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3172 lpfc_destroy_expedite_pool(phba); 3173 3174 j = 0; 3175 while (j < i) { 3176 qp = &phba->sli4_hba.hdwq[j]; 3177 kfree(qp->p_multixri_pool); 3178 j++; 3179 } 3180 phba->cfg_xri_rebalancing = 0; 3181 return; 3182 } 3183 3184 qp = &phba->sli4_hba.hdwq[i]; 3185 qp->p_multixri_pool = multixri_pool; 3186 3187 multixri_pool->xri_limit = count_per_hwq; 3188 multixri_pool->rrb_next_hwqid = i; 3189 3190 /* Deal with public free xri pool */ 3191 pbl_pool = &multixri_pool->pbl_pool; 3192 spin_lock_init(&pbl_pool->lock); 3193 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag); 3194 spin_lock(&pbl_pool->lock); 3195 INIT_LIST_HEAD(&pbl_pool->list); 3196 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3197 &qp->lpfc_io_buf_list_put, list) { 3198 list_move_tail(&lpfc_ncmd->list, &pbl_pool->list); 3199 qp->put_io_bufs--; 3200 pbl_pool->count++; 3201 } 3202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3203 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n", 3204 pbl_pool->count, i); 3205 spin_unlock(&pbl_pool->lock); 3206 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag); 3207 3208 /* Deal with private free xri pool */ 3209 pvt_pool = &multixri_pool->pvt_pool; 3210 pvt_pool->high_watermark = multixri_pool->xri_limit / 2; 3211 pvt_pool->low_watermark = XRI_BATCH; 3212 spin_lock_init(&pvt_pool->lock); 3213 spin_lock_irqsave(&pvt_pool->lock, iflag); 3214 INIT_LIST_HEAD(&pvt_pool->list); 3215 pvt_pool->count = 0; 3216 spin_unlock_irqrestore(&pvt_pool->lock, iflag); 3217 } 3218 } 3219 3220 /** 3221 * lpfc_destroy_multixri_pools - destroy multi-XRI pools 3222 * @phba: pointer to lpfc hba data structure. 3223 * 3224 * This routine returns XRIs from public/private to lpfc_io_buf_list_put. 3225 **/ 3226 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba) 3227 { 3228 u32 i; 3229 u32 hwq_count; 3230 struct lpfc_io_buf *lpfc_ncmd; 3231 struct lpfc_io_buf *lpfc_ncmd_next; 3232 unsigned long iflag; 3233 struct lpfc_sli4_hdw_queue *qp; 3234 struct lpfc_multixri_pool *multixri_pool; 3235 struct lpfc_pbl_pool *pbl_pool; 3236 struct lpfc_pvt_pool *pvt_pool; 3237 3238 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3239 lpfc_destroy_expedite_pool(phba); 3240 3241 if (!(phba->pport->load_flag & FC_UNLOADING)) 3242 lpfc_sli_flush_io_rings(phba); 3243 3244 hwq_count = phba->cfg_hdw_queue; 3245 3246 for (i = 0; i < hwq_count; i++) { 3247 qp = &phba->sli4_hba.hdwq[i]; 3248 multixri_pool = qp->p_multixri_pool; 3249 if (!multixri_pool) 3250 continue; 3251 3252 qp->p_multixri_pool = NULL; 3253 3254 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag); 3255 3256 /* Deal with public free xri pool */ 3257 pbl_pool = &multixri_pool->pbl_pool; 3258 spin_lock(&pbl_pool->lock); 3259 3260 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3261 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n", 3262 pbl_pool->count, i); 3263 3264 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3265 &pbl_pool->list, list) { 3266 list_move_tail(&lpfc_ncmd->list, 3267 &qp->lpfc_io_buf_list_put); 3268 qp->put_io_bufs++; 3269 pbl_pool->count--; 3270 } 3271 3272 INIT_LIST_HEAD(&pbl_pool->list); 3273 pbl_pool->count = 0; 3274 3275 spin_unlock(&pbl_pool->lock); 3276 3277 /* Deal with private free xri pool */ 3278 pvt_pool = &multixri_pool->pvt_pool; 3279 spin_lock(&pvt_pool->lock); 3280 3281 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3282 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n", 3283 pvt_pool->count, i); 3284 3285 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3286 &pvt_pool->list, list) { 3287 list_move_tail(&lpfc_ncmd->list, 3288 &qp->lpfc_io_buf_list_put); 3289 qp->put_io_bufs++; 3290 pvt_pool->count--; 3291 } 3292 3293 INIT_LIST_HEAD(&pvt_pool->list); 3294 pvt_pool->count = 0; 3295 3296 spin_unlock(&pvt_pool->lock); 3297 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag); 3298 3299 kfree(multixri_pool); 3300 } 3301 } 3302 3303 /** 3304 * lpfc_online - Initialize and bring a HBA online 3305 * @phba: pointer to lpfc hba data structure. 3306 * 3307 * This routine initializes the HBA and brings a HBA online. During this 3308 * process, the management interface is blocked to prevent user space access 3309 * to the HBA interfering with the driver initialization. 3310 * 3311 * Return codes 3312 * 0 - successful 3313 * 1 - failed 3314 **/ 3315 int 3316 lpfc_online(struct lpfc_hba *phba) 3317 { 3318 struct lpfc_vport *vport; 3319 struct lpfc_vport **vports; 3320 int i, error = 0; 3321 bool vpis_cleared = false; 3322 3323 if (!phba) 3324 return 0; 3325 vport = phba->pport; 3326 3327 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 3328 return 0; 3329 3330 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3331 "0458 Bring Adapter online\n"); 3332 3333 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 3334 3335 if (phba->sli_rev == LPFC_SLI_REV4) { 3336 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 3337 lpfc_unblock_mgmt_io(phba); 3338 return 1; 3339 } 3340 spin_lock_irq(&phba->hbalock); 3341 if (!phba->sli4_hba.max_cfg_param.vpi_used) 3342 vpis_cleared = true; 3343 spin_unlock_irq(&phba->hbalock); 3344 3345 /* Reestablish the local initiator port. 3346 * The offline process destroyed the previous lport. 3347 */ 3348 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 3349 !phba->nvmet_support) { 3350 error = lpfc_nvme_create_localport(phba->pport); 3351 if (error) 3352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3353 "6132 NVME restore reg failed " 3354 "on nvmei error x%x\n", error); 3355 } 3356 } else { 3357 lpfc_sli_queue_init(phba); 3358 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3359 lpfc_unblock_mgmt_io(phba); 3360 return 1; 3361 } 3362 } 3363 3364 vports = lpfc_create_vport_work_array(phba); 3365 if (vports != NULL) { 3366 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3367 struct Scsi_Host *shost; 3368 shost = lpfc_shost_from_vport(vports[i]); 3369 spin_lock_irq(shost->host_lock); 3370 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3371 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3372 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3373 if (phba->sli_rev == LPFC_SLI_REV4) { 3374 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3375 if ((vpis_cleared) && 3376 (vports[i]->port_type != 3377 LPFC_PHYSICAL_PORT)) 3378 vports[i]->vpi = 0; 3379 } 3380 spin_unlock_irq(shost->host_lock); 3381 } 3382 } 3383 lpfc_destroy_vport_work_array(phba, vports); 3384 3385 if (phba->cfg_xri_rebalancing) 3386 lpfc_create_multixri_pools(phba); 3387 3388 lpfc_cpuhp_add(phba); 3389 3390 lpfc_unblock_mgmt_io(phba); 3391 return 0; 3392 } 3393 3394 /** 3395 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3396 * @phba: pointer to lpfc hba data structure. 3397 * 3398 * This routine marks a HBA's management interface as not blocked. Once the 3399 * HBA's management interface is marked as not blocked, all the user space 3400 * access to the HBA, whether they are from sysfs interface or libdfc 3401 * interface will be allowed. The HBA is set to block the management interface 3402 * when the driver prepares the HBA interface for online or offline and then 3403 * set to unblock the management interface afterwards. 3404 **/ 3405 void 3406 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3407 { 3408 unsigned long iflag; 3409 3410 spin_lock_irqsave(&phba->hbalock, iflag); 3411 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3412 spin_unlock_irqrestore(&phba->hbalock, iflag); 3413 } 3414 3415 /** 3416 * lpfc_offline_prep - Prepare a HBA to be brought offline 3417 * @phba: pointer to lpfc hba data structure. 3418 * 3419 * This routine is invoked to prepare a HBA to be brought offline. It performs 3420 * unregistration login to all the nodes on all vports and flushes the mailbox 3421 * queue to make it ready to be brought offline. 3422 **/ 3423 void 3424 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3425 { 3426 struct lpfc_vport *vport = phba->pport; 3427 struct lpfc_nodelist *ndlp, *next_ndlp; 3428 struct lpfc_vport **vports; 3429 struct Scsi_Host *shost; 3430 int i; 3431 3432 if (vport->fc_flag & FC_OFFLINE_MODE) 3433 return; 3434 3435 lpfc_block_mgmt_io(phba, mbx_action); 3436 3437 lpfc_linkdown(phba); 3438 3439 /* Issue an unreg_login to all nodes on all vports */ 3440 vports = lpfc_create_vport_work_array(phba); 3441 if (vports != NULL) { 3442 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3443 if (vports[i]->load_flag & FC_UNLOADING) 3444 continue; 3445 shost = lpfc_shost_from_vport(vports[i]); 3446 spin_lock_irq(shost->host_lock); 3447 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3448 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3449 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3450 spin_unlock_irq(shost->host_lock); 3451 3452 shost = lpfc_shost_from_vport(vports[i]); 3453 list_for_each_entry_safe(ndlp, next_ndlp, 3454 &vports[i]->fc_nodes, 3455 nlp_listp) { 3456 if ((!NLP_CHK_NODE_ACT(ndlp)) || 3457 ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 3458 /* Driver must assume RPI is invalid for 3459 * any unused or inactive node. 3460 */ 3461 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 3462 continue; 3463 } 3464 3465 if (ndlp->nlp_type & NLP_FABRIC) { 3466 lpfc_disc_state_machine(vports[i], ndlp, 3467 NULL, NLP_EVT_DEVICE_RECOVERY); 3468 lpfc_disc_state_machine(vports[i], ndlp, 3469 NULL, NLP_EVT_DEVICE_RM); 3470 } 3471 spin_lock_irq(shost->host_lock); 3472 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3473 spin_unlock_irq(shost->host_lock); 3474 /* 3475 * Whenever an SLI4 port goes offline, free the 3476 * RPI. Get a new RPI when the adapter port 3477 * comes back online. 3478 */ 3479 if (phba->sli_rev == LPFC_SLI_REV4) { 3480 lpfc_printf_vlog(ndlp->vport, KERN_INFO, 3481 LOG_NODE | LOG_DISCOVERY, 3482 "0011 Free RPI x%x on " 3483 "ndlp:x%px did x%x " 3484 "usgmap:x%x\n", 3485 ndlp->nlp_rpi, ndlp, 3486 ndlp->nlp_DID, 3487 ndlp->nlp_usg_map); 3488 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3489 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR; 3490 } 3491 lpfc_unreg_rpi(vports[i], ndlp); 3492 } 3493 } 3494 } 3495 lpfc_destroy_vport_work_array(phba, vports); 3496 3497 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3498 3499 if (phba->wq) 3500 flush_workqueue(phba->wq); 3501 } 3502 3503 /** 3504 * lpfc_offline - Bring a HBA offline 3505 * @phba: pointer to lpfc hba data structure. 3506 * 3507 * This routine actually brings a HBA offline. It stops all the timers 3508 * associated with the HBA, brings down the SLI layer, and eventually 3509 * marks the HBA as in offline state for the upper layer protocol. 3510 **/ 3511 void 3512 lpfc_offline(struct lpfc_hba *phba) 3513 { 3514 struct Scsi_Host *shost; 3515 struct lpfc_vport **vports; 3516 int i; 3517 3518 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3519 return; 3520 3521 /* stop port and all timers associated with this hba */ 3522 lpfc_stop_port(phba); 3523 3524 /* Tear down the local and target port registrations. The 3525 * nvme transports need to cleanup. 3526 */ 3527 lpfc_nvmet_destroy_targetport(phba); 3528 lpfc_nvme_destroy_localport(phba->pport); 3529 3530 vports = lpfc_create_vport_work_array(phba); 3531 if (vports != NULL) 3532 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3533 lpfc_stop_vport_timers(vports[i]); 3534 lpfc_destroy_vport_work_array(phba, vports); 3535 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3536 "0460 Bring Adapter offline\n"); 3537 /* Bring down the SLI Layer and cleanup. The HBA is offline 3538 now. */ 3539 lpfc_sli_hba_down(phba); 3540 spin_lock_irq(&phba->hbalock); 3541 phba->work_ha = 0; 3542 spin_unlock_irq(&phba->hbalock); 3543 vports = lpfc_create_vport_work_array(phba); 3544 if (vports != NULL) 3545 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3546 shost = lpfc_shost_from_vport(vports[i]); 3547 spin_lock_irq(shost->host_lock); 3548 vports[i]->work_port_events = 0; 3549 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3550 spin_unlock_irq(shost->host_lock); 3551 } 3552 lpfc_destroy_vport_work_array(phba, vports); 3553 __lpfc_cpuhp_remove(phba); 3554 3555 if (phba->cfg_xri_rebalancing) 3556 lpfc_destroy_multixri_pools(phba); 3557 } 3558 3559 /** 3560 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3561 * @phba: pointer to lpfc hba data structure. 3562 * 3563 * This routine is to free all the SCSI buffers and IOCBs from the driver 3564 * list back to kernel. It is called from lpfc_pci_remove_one to free 3565 * the internal resources before the device is removed from the system. 3566 **/ 3567 static void 3568 lpfc_scsi_free(struct lpfc_hba *phba) 3569 { 3570 struct lpfc_io_buf *sb, *sb_next; 3571 3572 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3573 return; 3574 3575 spin_lock_irq(&phba->hbalock); 3576 3577 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3578 3579 spin_lock(&phba->scsi_buf_list_put_lock); 3580 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3581 list) { 3582 list_del(&sb->list); 3583 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3584 sb->dma_handle); 3585 kfree(sb); 3586 phba->total_scsi_bufs--; 3587 } 3588 spin_unlock(&phba->scsi_buf_list_put_lock); 3589 3590 spin_lock(&phba->scsi_buf_list_get_lock); 3591 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3592 list) { 3593 list_del(&sb->list); 3594 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3595 sb->dma_handle); 3596 kfree(sb); 3597 phba->total_scsi_bufs--; 3598 } 3599 spin_unlock(&phba->scsi_buf_list_get_lock); 3600 spin_unlock_irq(&phba->hbalock); 3601 } 3602 3603 /** 3604 * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists 3605 * @phba: pointer to lpfc hba data structure. 3606 * 3607 * This routine is to free all the IO buffers and IOCBs from the driver 3608 * list back to kernel. It is called from lpfc_pci_remove_one to free 3609 * the internal resources before the device is removed from the system. 3610 **/ 3611 void 3612 lpfc_io_free(struct lpfc_hba *phba) 3613 { 3614 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next; 3615 struct lpfc_sli4_hdw_queue *qp; 3616 int idx; 3617 3618 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 3619 qp = &phba->sli4_hba.hdwq[idx]; 3620 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3621 spin_lock(&qp->io_buf_list_put_lock); 3622 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3623 &qp->lpfc_io_buf_list_put, 3624 list) { 3625 list_del(&lpfc_ncmd->list); 3626 qp->put_io_bufs--; 3627 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3628 lpfc_ncmd->data, lpfc_ncmd->dma_handle); 3629 if (phba->cfg_xpsgl && !phba->nvmet_support) 3630 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd); 3631 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd); 3632 kfree(lpfc_ncmd); 3633 qp->total_io_bufs--; 3634 } 3635 spin_unlock(&qp->io_buf_list_put_lock); 3636 3637 spin_lock(&qp->io_buf_list_get_lock); 3638 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3639 &qp->lpfc_io_buf_list_get, 3640 list) { 3641 list_del(&lpfc_ncmd->list); 3642 qp->get_io_bufs--; 3643 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3644 lpfc_ncmd->data, lpfc_ncmd->dma_handle); 3645 if (phba->cfg_xpsgl && !phba->nvmet_support) 3646 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd); 3647 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd); 3648 kfree(lpfc_ncmd); 3649 qp->total_io_bufs--; 3650 } 3651 spin_unlock(&qp->io_buf_list_get_lock); 3652 } 3653 } 3654 3655 /** 3656 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3657 * @phba: pointer to lpfc hba data structure. 3658 * 3659 * This routine first calculates the sizes of the current els and allocated 3660 * scsi sgl lists, and then goes through all sgls to updates the physical 3661 * XRIs assigned due to port function reset. During port initialization, the 3662 * current els and allocated scsi sgl lists are 0s. 3663 * 3664 * Return codes 3665 * 0 - successful (for now, it always returns 0) 3666 **/ 3667 int 3668 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3669 { 3670 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3671 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3672 LIST_HEAD(els_sgl_list); 3673 int rc; 3674 3675 /* 3676 * update on pci function's els xri-sgl list 3677 */ 3678 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3679 3680 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3681 /* els xri-sgl expanded */ 3682 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3683 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3684 "3157 ELS xri-sgl count increased from " 3685 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3686 els_xri_cnt); 3687 /* allocate the additional els sgls */ 3688 for (i = 0; i < xri_cnt; i++) { 3689 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3690 GFP_KERNEL); 3691 if (sglq_entry == NULL) { 3692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3693 "2562 Failure to allocate an " 3694 "ELS sgl entry:%d\n", i); 3695 rc = -ENOMEM; 3696 goto out_free_mem; 3697 } 3698 sglq_entry->buff_type = GEN_BUFF_TYPE; 3699 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3700 &sglq_entry->phys); 3701 if (sglq_entry->virt == NULL) { 3702 kfree(sglq_entry); 3703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3704 "2563 Failure to allocate an " 3705 "ELS mbuf:%d\n", i); 3706 rc = -ENOMEM; 3707 goto out_free_mem; 3708 } 3709 sglq_entry->sgl = sglq_entry->virt; 3710 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3711 sglq_entry->state = SGL_FREED; 3712 list_add_tail(&sglq_entry->list, &els_sgl_list); 3713 } 3714 spin_lock_irq(&phba->hbalock); 3715 spin_lock(&phba->sli4_hba.sgl_list_lock); 3716 list_splice_init(&els_sgl_list, 3717 &phba->sli4_hba.lpfc_els_sgl_list); 3718 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3719 spin_unlock_irq(&phba->hbalock); 3720 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3721 /* els xri-sgl shrinked */ 3722 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3723 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3724 "3158 ELS xri-sgl count decreased from " 3725 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3726 els_xri_cnt); 3727 spin_lock_irq(&phba->hbalock); 3728 spin_lock(&phba->sli4_hba.sgl_list_lock); 3729 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3730 &els_sgl_list); 3731 /* release extra els sgls from list */ 3732 for (i = 0; i < xri_cnt; i++) { 3733 list_remove_head(&els_sgl_list, 3734 sglq_entry, struct lpfc_sglq, list); 3735 if (sglq_entry) { 3736 __lpfc_mbuf_free(phba, sglq_entry->virt, 3737 sglq_entry->phys); 3738 kfree(sglq_entry); 3739 } 3740 } 3741 list_splice_init(&els_sgl_list, 3742 &phba->sli4_hba.lpfc_els_sgl_list); 3743 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3744 spin_unlock_irq(&phba->hbalock); 3745 } else 3746 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3747 "3163 ELS xri-sgl count unchanged: %d\n", 3748 els_xri_cnt); 3749 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3750 3751 /* update xris to els sgls on the list */ 3752 sglq_entry = NULL; 3753 sglq_entry_next = NULL; 3754 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3755 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3756 lxri = lpfc_sli4_next_xritag(phba); 3757 if (lxri == NO_XRI) { 3758 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3759 "2400 Failed to allocate xri for " 3760 "ELS sgl\n"); 3761 rc = -ENOMEM; 3762 goto out_free_mem; 3763 } 3764 sglq_entry->sli4_lxritag = lxri; 3765 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3766 } 3767 return 0; 3768 3769 out_free_mem: 3770 lpfc_free_els_sgl_list(phba); 3771 return rc; 3772 } 3773 3774 /** 3775 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3776 * @phba: pointer to lpfc hba data structure. 3777 * 3778 * This routine first calculates the sizes of the current els and allocated 3779 * scsi sgl lists, and then goes through all sgls to updates the physical 3780 * XRIs assigned due to port function reset. During port initialization, the 3781 * current els and allocated scsi sgl lists are 0s. 3782 * 3783 * Return codes 3784 * 0 - successful (for now, it always returns 0) 3785 **/ 3786 int 3787 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3788 { 3789 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3790 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3791 uint16_t nvmet_xri_cnt; 3792 LIST_HEAD(nvmet_sgl_list); 3793 int rc; 3794 3795 /* 3796 * update on pci function's nvmet xri-sgl list 3797 */ 3798 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3799 3800 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3801 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3802 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3803 /* els xri-sgl expanded */ 3804 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3805 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3806 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3807 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3808 /* allocate the additional nvmet sgls */ 3809 for (i = 0; i < xri_cnt; i++) { 3810 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3811 GFP_KERNEL); 3812 if (sglq_entry == NULL) { 3813 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3814 "6303 Failure to allocate an " 3815 "NVMET sgl entry:%d\n", i); 3816 rc = -ENOMEM; 3817 goto out_free_mem; 3818 } 3819 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3820 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3821 &sglq_entry->phys); 3822 if (sglq_entry->virt == NULL) { 3823 kfree(sglq_entry); 3824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3825 "6304 Failure to allocate an " 3826 "NVMET buf:%d\n", i); 3827 rc = -ENOMEM; 3828 goto out_free_mem; 3829 } 3830 sglq_entry->sgl = sglq_entry->virt; 3831 memset(sglq_entry->sgl, 0, 3832 phba->cfg_sg_dma_buf_size); 3833 sglq_entry->state = SGL_FREED; 3834 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3835 } 3836 spin_lock_irq(&phba->hbalock); 3837 spin_lock(&phba->sli4_hba.sgl_list_lock); 3838 list_splice_init(&nvmet_sgl_list, 3839 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3840 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3841 spin_unlock_irq(&phba->hbalock); 3842 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3843 /* nvmet xri-sgl shrunk */ 3844 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3846 "6305 NVMET xri-sgl count decreased from " 3847 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3848 nvmet_xri_cnt); 3849 spin_lock_irq(&phba->hbalock); 3850 spin_lock(&phba->sli4_hba.sgl_list_lock); 3851 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3852 &nvmet_sgl_list); 3853 /* release extra nvmet sgls from list */ 3854 for (i = 0; i < xri_cnt; i++) { 3855 list_remove_head(&nvmet_sgl_list, 3856 sglq_entry, struct lpfc_sglq, list); 3857 if (sglq_entry) { 3858 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3859 sglq_entry->phys); 3860 kfree(sglq_entry); 3861 } 3862 } 3863 list_splice_init(&nvmet_sgl_list, 3864 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3865 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3866 spin_unlock_irq(&phba->hbalock); 3867 } else 3868 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3869 "6306 NVMET xri-sgl count unchanged: %d\n", 3870 nvmet_xri_cnt); 3871 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3872 3873 /* update xris to nvmet sgls on the list */ 3874 sglq_entry = NULL; 3875 sglq_entry_next = NULL; 3876 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3877 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3878 lxri = lpfc_sli4_next_xritag(phba); 3879 if (lxri == NO_XRI) { 3880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3881 "6307 Failed to allocate xri for " 3882 "NVMET sgl\n"); 3883 rc = -ENOMEM; 3884 goto out_free_mem; 3885 } 3886 sglq_entry->sli4_lxritag = lxri; 3887 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3888 } 3889 return 0; 3890 3891 out_free_mem: 3892 lpfc_free_nvmet_sgl_list(phba); 3893 return rc; 3894 } 3895 3896 int 3897 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf) 3898 { 3899 LIST_HEAD(blist); 3900 struct lpfc_sli4_hdw_queue *qp; 3901 struct lpfc_io_buf *lpfc_cmd; 3902 struct lpfc_io_buf *iobufp, *prev_iobufp; 3903 int idx, cnt, xri, inserted; 3904 3905 cnt = 0; 3906 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 3907 qp = &phba->sli4_hba.hdwq[idx]; 3908 spin_lock_irq(&qp->io_buf_list_get_lock); 3909 spin_lock(&qp->io_buf_list_put_lock); 3910 3911 /* Take everything off the get and put lists */ 3912 list_splice_init(&qp->lpfc_io_buf_list_get, &blist); 3913 list_splice(&qp->lpfc_io_buf_list_put, &blist); 3914 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get); 3915 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put); 3916 cnt += qp->get_io_bufs + qp->put_io_bufs; 3917 qp->get_io_bufs = 0; 3918 qp->put_io_bufs = 0; 3919 qp->total_io_bufs = 0; 3920 spin_unlock(&qp->io_buf_list_put_lock); 3921 spin_unlock_irq(&qp->io_buf_list_get_lock); 3922 } 3923 3924 /* 3925 * Take IO buffers off blist and put on cbuf sorted by XRI. 3926 * This is because POST_SGL takes a sequential range of XRIs 3927 * to post to the firmware. 3928 */ 3929 for (idx = 0; idx < cnt; idx++) { 3930 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list); 3931 if (!lpfc_cmd) 3932 return cnt; 3933 if (idx == 0) { 3934 list_add_tail(&lpfc_cmd->list, cbuf); 3935 continue; 3936 } 3937 xri = lpfc_cmd->cur_iocbq.sli4_xritag; 3938 inserted = 0; 3939 prev_iobufp = NULL; 3940 list_for_each_entry(iobufp, cbuf, list) { 3941 if (xri < iobufp->cur_iocbq.sli4_xritag) { 3942 if (prev_iobufp) 3943 list_add(&lpfc_cmd->list, 3944 &prev_iobufp->list); 3945 else 3946 list_add(&lpfc_cmd->list, cbuf); 3947 inserted = 1; 3948 break; 3949 } 3950 prev_iobufp = iobufp; 3951 } 3952 if (!inserted) 3953 list_add_tail(&lpfc_cmd->list, cbuf); 3954 } 3955 return cnt; 3956 } 3957 3958 int 3959 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf) 3960 { 3961 struct lpfc_sli4_hdw_queue *qp; 3962 struct lpfc_io_buf *lpfc_cmd; 3963 int idx, cnt; 3964 3965 qp = phba->sli4_hba.hdwq; 3966 cnt = 0; 3967 while (!list_empty(cbuf)) { 3968 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 3969 list_remove_head(cbuf, lpfc_cmd, 3970 struct lpfc_io_buf, list); 3971 if (!lpfc_cmd) 3972 return cnt; 3973 cnt++; 3974 qp = &phba->sli4_hba.hdwq[idx]; 3975 lpfc_cmd->hdwq_no = idx; 3976 lpfc_cmd->hdwq = qp; 3977 lpfc_cmd->cur_iocbq.wqe_cmpl = NULL; 3978 lpfc_cmd->cur_iocbq.iocb_cmpl = NULL; 3979 spin_lock(&qp->io_buf_list_put_lock); 3980 list_add_tail(&lpfc_cmd->list, 3981 &qp->lpfc_io_buf_list_put); 3982 qp->put_io_bufs++; 3983 qp->total_io_bufs++; 3984 spin_unlock(&qp->io_buf_list_put_lock); 3985 } 3986 } 3987 return cnt; 3988 } 3989 3990 /** 3991 * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping 3992 * @phba: pointer to lpfc hba data structure. 3993 * 3994 * This routine first calculates the sizes of the current els and allocated 3995 * scsi sgl lists, and then goes through all sgls to updates the physical 3996 * XRIs assigned due to port function reset. During port initialization, the 3997 * current els and allocated scsi sgl lists are 0s. 3998 * 3999 * Return codes 4000 * 0 - successful (for now, it always returns 0) 4001 **/ 4002 int 4003 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba) 4004 { 4005 struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 4006 uint16_t i, lxri, els_xri_cnt; 4007 uint16_t io_xri_cnt, io_xri_max; 4008 LIST_HEAD(io_sgl_list); 4009 int rc, cnt; 4010 4011 /* 4012 * update on pci function's allocated nvme xri-sgl list 4013 */ 4014 4015 /* maximum number of xris available for nvme buffers */ 4016 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4017 io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4018 phba->sli4_hba.io_xri_max = io_xri_max; 4019 4020 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4021 "6074 Current allocated XRI sgl count:%d, " 4022 "maximum XRI count:%d\n", 4023 phba->sli4_hba.io_xri_cnt, 4024 phba->sli4_hba.io_xri_max); 4025 4026 cnt = lpfc_io_buf_flush(phba, &io_sgl_list); 4027 4028 if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) { 4029 /* max nvme xri shrunk below the allocated nvme buffers */ 4030 io_xri_cnt = phba->sli4_hba.io_xri_cnt - 4031 phba->sli4_hba.io_xri_max; 4032 /* release the extra allocated nvme buffers */ 4033 for (i = 0; i < io_xri_cnt; i++) { 4034 list_remove_head(&io_sgl_list, lpfc_ncmd, 4035 struct lpfc_io_buf, list); 4036 if (lpfc_ncmd) { 4037 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 4038 lpfc_ncmd->data, 4039 lpfc_ncmd->dma_handle); 4040 kfree(lpfc_ncmd); 4041 } 4042 } 4043 phba->sli4_hba.io_xri_cnt -= io_xri_cnt; 4044 } 4045 4046 /* update xris associated to remaining allocated nvme buffers */ 4047 lpfc_ncmd = NULL; 4048 lpfc_ncmd_next = NULL; 4049 phba->sli4_hba.io_xri_cnt = cnt; 4050 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 4051 &io_sgl_list, list) { 4052 lxri = lpfc_sli4_next_xritag(phba); 4053 if (lxri == NO_XRI) { 4054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4055 "6075 Failed to allocate xri for " 4056 "nvme buffer\n"); 4057 rc = -ENOMEM; 4058 goto out_free_mem; 4059 } 4060 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 4061 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 4062 } 4063 cnt = lpfc_io_buf_replenish(phba, &io_sgl_list); 4064 return 0; 4065 4066 out_free_mem: 4067 lpfc_io_free(phba); 4068 return rc; 4069 } 4070 4071 /** 4072 * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec 4073 * @vport: The virtual port for which this call being executed. 4074 * @num_to_allocate: The requested number of buffers to allocate. 4075 * 4076 * This routine allocates nvme buffers for device with SLI-4 interface spec, 4077 * the nvme buffer contains all the necessary information needed to initiate 4078 * an I/O. After allocating up to @num_to_allocate IO buffers and put 4079 * them on a list, it post them to the port by using SGL block post. 4080 * 4081 * Return codes: 4082 * int - number of IO buffers that were allocated and posted. 4083 * 0 = failure, less than num_to_alloc is a partial failure. 4084 **/ 4085 int 4086 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc) 4087 { 4088 struct lpfc_io_buf *lpfc_ncmd; 4089 struct lpfc_iocbq *pwqeq; 4090 uint16_t iotag, lxri = 0; 4091 int bcnt, num_posted; 4092 LIST_HEAD(prep_nblist); 4093 LIST_HEAD(post_nblist); 4094 LIST_HEAD(nvme_nblist); 4095 4096 phba->sli4_hba.io_xri_cnt = 0; 4097 for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { 4098 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL); 4099 if (!lpfc_ncmd) 4100 break; 4101 /* 4102 * Get memory from the pci pool to map the virt space to 4103 * pci bus space for an I/O. The DMA buffer includes the 4104 * number of SGE's necessary to support the sg_tablesize. 4105 */ 4106 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool, 4107 GFP_KERNEL, 4108 &lpfc_ncmd->dma_handle); 4109 if (!lpfc_ncmd->data) { 4110 kfree(lpfc_ncmd); 4111 break; 4112 } 4113 4114 if (phba->cfg_xpsgl && !phba->nvmet_support) { 4115 INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list); 4116 } else { 4117 /* 4118 * 4K Page alignment is CRITICAL to BlockGuard, double 4119 * check to be sure. 4120 */ 4121 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) && 4122 (((unsigned long)(lpfc_ncmd->data) & 4123 (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) { 4124 lpfc_printf_log(phba, KERN_ERR, LOG_FCP, 4125 "3369 Memory alignment err: " 4126 "addr=%lx\n", 4127 (unsigned long)lpfc_ncmd->data); 4128 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 4129 lpfc_ncmd->data, 4130 lpfc_ncmd->dma_handle); 4131 kfree(lpfc_ncmd); 4132 break; 4133 } 4134 } 4135 4136 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list); 4137 4138 lxri = lpfc_sli4_next_xritag(phba); 4139 if (lxri == NO_XRI) { 4140 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 4141 lpfc_ncmd->data, lpfc_ncmd->dma_handle); 4142 kfree(lpfc_ncmd); 4143 break; 4144 } 4145 pwqeq = &lpfc_ncmd->cur_iocbq; 4146 4147 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */ 4148 iotag = lpfc_sli_next_iotag(phba, pwqeq); 4149 if (iotag == 0) { 4150 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 4151 lpfc_ncmd->data, lpfc_ncmd->dma_handle); 4152 kfree(lpfc_ncmd); 4153 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, 4154 "6121 Failed to allocate IOTAG for" 4155 " XRI:0x%x\n", lxri); 4156 lpfc_sli4_free_xri(phba, lxri); 4157 break; 4158 } 4159 pwqeq->sli4_lxritag = lxri; 4160 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 4161 pwqeq->context1 = lpfc_ncmd; 4162 4163 /* Initialize local short-hand pointers. */ 4164 lpfc_ncmd->dma_sgl = lpfc_ncmd->data; 4165 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle; 4166 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd; 4167 spin_lock_init(&lpfc_ncmd->buf_lock); 4168 4169 /* add the nvme buffer to a post list */ 4170 list_add_tail(&lpfc_ncmd->list, &post_nblist); 4171 phba->sli4_hba.io_xri_cnt++; 4172 } 4173 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 4174 "6114 Allocate %d out of %d requested new NVME " 4175 "buffers\n", bcnt, num_to_alloc); 4176 4177 /* post the list of nvme buffer sgls to port if available */ 4178 if (!list_empty(&post_nblist)) 4179 num_posted = lpfc_sli4_post_io_sgl_list( 4180 phba, &post_nblist, bcnt); 4181 else 4182 num_posted = 0; 4183 4184 return num_posted; 4185 } 4186 4187 static uint64_t 4188 lpfc_get_wwpn(struct lpfc_hba *phba) 4189 { 4190 uint64_t wwn; 4191 int rc; 4192 LPFC_MBOXQ_t *mboxq; 4193 MAILBOX_t *mb; 4194 4195 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4196 GFP_KERNEL); 4197 if (!mboxq) 4198 return (uint64_t)-1; 4199 4200 /* First get WWN of HBA instance */ 4201 lpfc_read_nv(phba, mboxq); 4202 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4203 if (rc != MBX_SUCCESS) { 4204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4205 "6019 Mailbox failed , mbxCmd x%x " 4206 "READ_NV, mbxStatus x%x\n", 4207 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 4208 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 4209 mempool_free(mboxq, phba->mbox_mem_pool); 4210 return (uint64_t) -1; 4211 } 4212 mb = &mboxq->u.mb; 4213 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 4214 /* wwn is WWPN of HBA instance */ 4215 mempool_free(mboxq, phba->mbox_mem_pool); 4216 if (phba->sli_rev == LPFC_SLI_REV4) 4217 return be64_to_cpu(wwn); 4218 else 4219 return rol64(wwn, 32); 4220 } 4221 4222 /** 4223 * lpfc_create_port - Create an FC port 4224 * @phba: pointer to lpfc hba data structure. 4225 * @instance: a unique integer ID to this FC port. 4226 * @dev: pointer to the device data structure. 4227 * 4228 * This routine creates a FC port for the upper layer protocol. The FC port 4229 * can be created on top of either a physical port or a virtual port provided 4230 * by the HBA. This routine also allocates a SCSI host data structure (shost) 4231 * and associates the FC port created before adding the shost into the SCSI 4232 * layer. 4233 * 4234 * Return codes 4235 * @vport - pointer to the virtual N_Port data structure. 4236 * NULL - port create failed. 4237 **/ 4238 struct lpfc_vport * 4239 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 4240 { 4241 struct lpfc_vport *vport; 4242 struct Scsi_Host *shost = NULL; 4243 int error = 0; 4244 int i; 4245 uint64_t wwn; 4246 bool use_no_reset_hba = false; 4247 int rc; 4248 4249 if (lpfc_no_hba_reset_cnt) { 4250 if (phba->sli_rev < LPFC_SLI_REV4 && 4251 dev == &phba->pcidev->dev) { 4252 /* Reset the port first */ 4253 lpfc_sli_brdrestart(phba); 4254 rc = lpfc_sli_chipset_init(phba); 4255 if (rc) 4256 return NULL; 4257 } 4258 wwn = lpfc_get_wwpn(phba); 4259 } 4260 4261 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 4262 if (wwn == lpfc_no_hba_reset[i]) { 4263 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4264 "6020 Setting use_no_reset port=%llx\n", 4265 wwn); 4266 use_no_reset_hba = true; 4267 break; 4268 } 4269 } 4270 4271 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 4272 if (dev != &phba->pcidev->dev) { 4273 shost = scsi_host_alloc(&lpfc_vport_template, 4274 sizeof(struct lpfc_vport)); 4275 } else { 4276 if (!use_no_reset_hba) 4277 shost = scsi_host_alloc(&lpfc_template, 4278 sizeof(struct lpfc_vport)); 4279 else 4280 shost = scsi_host_alloc(&lpfc_template_no_hr, 4281 sizeof(struct lpfc_vport)); 4282 } 4283 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 4284 shost = scsi_host_alloc(&lpfc_template_nvme, 4285 sizeof(struct lpfc_vport)); 4286 } 4287 if (!shost) 4288 goto out; 4289 4290 vport = (struct lpfc_vport *) shost->hostdata; 4291 vport->phba = phba; 4292 vport->load_flag |= FC_LOADING; 4293 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 4294 vport->fc_rscn_flush = 0; 4295 lpfc_get_vport_cfgparam(vport); 4296 4297 /* Adjust value in vport */ 4298 vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type; 4299 4300 shost->unique_id = instance; 4301 shost->max_id = LPFC_MAX_TARGET; 4302 shost->max_lun = vport->cfg_max_luns; 4303 shost->this_id = -1; 4304 shost->max_cmd_len = 16; 4305 4306 if (phba->sli_rev == LPFC_SLI_REV4) { 4307 if (!phba->cfg_fcp_mq_threshold || 4308 phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue) 4309 phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue; 4310 4311 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(), 4312 phba->cfg_fcp_mq_threshold); 4313 4314 shost->dma_boundary = 4315 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 4316 4317 if (phba->cfg_xpsgl && !phba->nvmet_support) 4318 shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE; 4319 else 4320 shost->sg_tablesize = phba->cfg_scsi_seg_cnt; 4321 } else 4322 /* SLI-3 has a limited number of hardware queues (3), 4323 * thus there is only one for FCP processing. 4324 */ 4325 shost->nr_hw_queues = 1; 4326 4327 /* 4328 * Set initial can_queue value since 0 is no longer supported and 4329 * scsi_add_host will fail. This will be adjusted later based on the 4330 * max xri value determined in hba setup. 4331 */ 4332 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4333 if (dev != &phba->pcidev->dev) { 4334 shost->transportt = lpfc_vport_transport_template; 4335 vport->port_type = LPFC_NPIV_PORT; 4336 } else { 4337 shost->transportt = lpfc_transport_template; 4338 vport->port_type = LPFC_PHYSICAL_PORT; 4339 } 4340 4341 /* Initialize all internally managed lists. */ 4342 INIT_LIST_HEAD(&vport->fc_nodes); 4343 INIT_LIST_HEAD(&vport->rcv_buffer_list); 4344 spin_lock_init(&vport->work_port_lock); 4345 4346 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); 4347 4348 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); 4349 4350 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); 4351 4352 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4353 lpfc_setup_bg(phba, shost); 4354 4355 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 4356 if (error) 4357 goto out_put_shost; 4358 4359 spin_lock_irq(&phba->port_list_lock); 4360 list_add_tail(&vport->listentry, &phba->port_list); 4361 spin_unlock_irq(&phba->port_list_lock); 4362 return vport; 4363 4364 out_put_shost: 4365 scsi_host_put(shost); 4366 out: 4367 return NULL; 4368 } 4369 4370 /** 4371 * destroy_port - destroy an FC port 4372 * @vport: pointer to an lpfc virtual N_Port data structure. 4373 * 4374 * This routine destroys a FC port from the upper layer protocol. All the 4375 * resources associated with the port are released. 4376 **/ 4377 void 4378 destroy_port(struct lpfc_vport *vport) 4379 { 4380 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4381 struct lpfc_hba *phba = vport->phba; 4382 4383 lpfc_debugfs_terminate(vport); 4384 fc_remove_host(shost); 4385 scsi_remove_host(shost); 4386 4387 spin_lock_irq(&phba->port_list_lock); 4388 list_del_init(&vport->listentry); 4389 spin_unlock_irq(&phba->port_list_lock); 4390 4391 lpfc_cleanup(vport); 4392 return; 4393 } 4394 4395 /** 4396 * lpfc_get_instance - Get a unique integer ID 4397 * 4398 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 4399 * uses the kernel idr facility to perform the task. 4400 * 4401 * Return codes: 4402 * instance - a unique integer ID allocated as the new instance. 4403 * -1 - lpfc get instance failed. 4404 **/ 4405 int 4406 lpfc_get_instance(void) 4407 { 4408 int ret; 4409 4410 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4411 return ret < 0 ? -1 : ret; 4412 } 4413 4414 /** 4415 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4416 * @shost: pointer to SCSI host data structure. 4417 * @time: elapsed time of the scan in jiffies. 4418 * 4419 * This routine is called by the SCSI layer with a SCSI host to determine 4420 * whether the scan host is finished. 4421 * 4422 * Note: there is no scan_start function as adapter initialization will have 4423 * asynchronously kicked off the link initialization. 4424 * 4425 * Return codes 4426 * 0 - SCSI host scan is not over yet. 4427 * 1 - SCSI host scan is over. 4428 **/ 4429 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4430 { 4431 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4432 struct lpfc_hba *phba = vport->phba; 4433 int stat = 0; 4434 4435 spin_lock_irq(shost->host_lock); 4436 4437 if (vport->load_flag & FC_UNLOADING) { 4438 stat = 1; 4439 goto finished; 4440 } 4441 if (time >= msecs_to_jiffies(30 * 1000)) { 4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4443 "0461 Scanning longer than 30 " 4444 "seconds. Continuing initialization\n"); 4445 stat = 1; 4446 goto finished; 4447 } 4448 if (time >= msecs_to_jiffies(15 * 1000) && 4449 phba->link_state <= LPFC_LINK_DOWN) { 4450 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4451 "0465 Link down longer than 15 " 4452 "seconds. Continuing initialization\n"); 4453 stat = 1; 4454 goto finished; 4455 } 4456 4457 if (vport->port_state != LPFC_VPORT_READY) 4458 goto finished; 4459 if (vport->num_disc_nodes || vport->fc_prli_sent) 4460 goto finished; 4461 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4462 goto finished; 4463 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4464 goto finished; 4465 4466 stat = 1; 4467 4468 finished: 4469 spin_unlock_irq(shost->host_lock); 4470 return stat; 4471 } 4472 4473 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost) 4474 { 4475 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4476 struct lpfc_hba *phba = vport->phba; 4477 4478 fc_host_supported_speeds(shost) = 0; 4479 if (phba->lmt & LMT_128Gb) 4480 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT; 4481 if (phba->lmt & LMT_64Gb) 4482 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT; 4483 if (phba->lmt & LMT_32Gb) 4484 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4485 if (phba->lmt & LMT_16Gb) 4486 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4487 if (phba->lmt & LMT_10Gb) 4488 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4489 if (phba->lmt & LMT_8Gb) 4490 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4491 if (phba->lmt & LMT_4Gb) 4492 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4493 if (phba->lmt & LMT_2Gb) 4494 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4495 if (phba->lmt & LMT_1Gb) 4496 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4497 } 4498 4499 /** 4500 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4501 * @shost: pointer to SCSI host data structure. 4502 * 4503 * This routine initializes a given SCSI host attributes on a FC port. The 4504 * SCSI host can be either on top of a physical port or a virtual port. 4505 **/ 4506 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4507 { 4508 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4509 struct lpfc_hba *phba = vport->phba; 4510 /* 4511 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4512 */ 4513 4514 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4515 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4516 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4517 4518 memset(fc_host_supported_fc4s(shost), 0, 4519 sizeof(fc_host_supported_fc4s(shost))); 4520 fc_host_supported_fc4s(shost)[2] = 1; 4521 fc_host_supported_fc4s(shost)[7] = 1; 4522 4523 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4524 sizeof fc_host_symbolic_name(shost)); 4525 4526 lpfc_host_supported_speeds_set(shost); 4527 4528 fc_host_maxframe_size(shost) = 4529 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4530 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4531 4532 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4533 4534 /* This value is also unchanging */ 4535 memset(fc_host_active_fc4s(shost), 0, 4536 sizeof(fc_host_active_fc4s(shost))); 4537 fc_host_active_fc4s(shost)[2] = 1; 4538 fc_host_active_fc4s(shost)[7] = 1; 4539 4540 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4541 spin_lock_irq(shost->host_lock); 4542 vport->load_flag &= ~FC_LOADING; 4543 spin_unlock_irq(shost->host_lock); 4544 } 4545 4546 /** 4547 * lpfc_stop_port_s3 - Stop SLI3 device port 4548 * @phba: pointer to lpfc hba data structure. 4549 * 4550 * This routine is invoked to stop an SLI3 device port, it stops the device 4551 * from generating interrupts and stops the device driver's timers for the 4552 * device. 4553 **/ 4554 static void 4555 lpfc_stop_port_s3(struct lpfc_hba *phba) 4556 { 4557 /* Clear all interrupt enable conditions */ 4558 writel(0, phba->HCregaddr); 4559 readl(phba->HCregaddr); /* flush */ 4560 /* Clear all pending interrupts */ 4561 writel(0xffffffff, phba->HAregaddr); 4562 readl(phba->HAregaddr); /* flush */ 4563 4564 /* Reset some HBA SLI setup states */ 4565 lpfc_stop_hba_timers(phba); 4566 phba->pport->work_port_events = 0; 4567 } 4568 4569 /** 4570 * lpfc_stop_port_s4 - Stop SLI4 device port 4571 * @phba: pointer to lpfc hba data structure. 4572 * 4573 * This routine is invoked to stop an SLI4 device port, it stops the device 4574 * from generating interrupts and stops the device driver's timers for the 4575 * device. 4576 **/ 4577 static void 4578 lpfc_stop_port_s4(struct lpfc_hba *phba) 4579 { 4580 /* Reset some HBA SLI4 setup states */ 4581 lpfc_stop_hba_timers(phba); 4582 if (phba->pport) 4583 phba->pport->work_port_events = 0; 4584 phba->sli4_hba.intr_enable = 0; 4585 } 4586 4587 /** 4588 * lpfc_stop_port - Wrapper function for stopping hba port 4589 * @phba: Pointer to HBA context object. 4590 * 4591 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4592 * the API jump table function pointer from the lpfc_hba struct. 4593 **/ 4594 void 4595 lpfc_stop_port(struct lpfc_hba *phba) 4596 { 4597 phba->lpfc_stop_port(phba); 4598 4599 if (phba->wq) 4600 flush_workqueue(phba->wq); 4601 } 4602 4603 /** 4604 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4605 * @phba: Pointer to hba for which this call is being executed. 4606 * 4607 * This routine starts the timer waiting for the FCF rediscovery to complete. 4608 **/ 4609 void 4610 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4611 { 4612 unsigned long fcf_redisc_wait_tmo = 4613 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4614 /* Start fcf rediscovery wait period timer */ 4615 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4616 spin_lock_irq(&phba->hbalock); 4617 /* Allow action to new fcf asynchronous event */ 4618 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4619 /* Mark the FCF rediscovery pending state */ 4620 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4621 spin_unlock_irq(&phba->hbalock); 4622 } 4623 4624 /** 4625 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4626 * @ptr: Map to lpfc_hba data structure pointer. 4627 * 4628 * This routine is invoked when waiting for FCF table rediscover has been 4629 * timed out. If new FCF record(s) has (have) been discovered during the 4630 * wait period, a new FCF event shall be added to the FCOE async event 4631 * list, and then worker thread shall be waked up for processing from the 4632 * worker thread context. 4633 **/ 4634 static void 4635 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) 4636 { 4637 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); 4638 4639 /* Don't send FCF rediscovery event if timer cancelled */ 4640 spin_lock_irq(&phba->hbalock); 4641 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4642 spin_unlock_irq(&phba->hbalock); 4643 return; 4644 } 4645 /* Clear FCF rediscovery timer pending flag */ 4646 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4647 /* FCF rediscovery event to worker thread */ 4648 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4649 spin_unlock_irq(&phba->hbalock); 4650 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4651 "2776 FCF rediscover quiescent timer expired\n"); 4652 /* wake up worker thread */ 4653 lpfc_worker_wake_up(phba); 4654 } 4655 4656 /** 4657 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4658 * @phba: pointer to lpfc hba data structure. 4659 * @acqe_link: pointer to the async link completion queue entry. 4660 * 4661 * This routine is to parse the SLI4 link-attention link fault code. 4662 **/ 4663 static void 4664 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4665 struct lpfc_acqe_link *acqe_link) 4666 { 4667 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4668 case LPFC_ASYNC_LINK_FAULT_NONE: 4669 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4670 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4671 case LPFC_ASYNC_LINK_FAULT_LR_LRR: 4672 break; 4673 default: 4674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4675 "0398 Unknown link fault code: x%x\n", 4676 bf_get(lpfc_acqe_link_fault, acqe_link)); 4677 break; 4678 } 4679 } 4680 4681 /** 4682 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4683 * @phba: pointer to lpfc hba data structure. 4684 * @acqe_link: pointer to the async link completion queue entry. 4685 * 4686 * This routine is to parse the SLI4 link attention type and translate it 4687 * into the base driver's link attention type coding. 4688 * 4689 * Return: Link attention type in terms of base driver's coding. 4690 **/ 4691 static uint8_t 4692 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4693 struct lpfc_acqe_link *acqe_link) 4694 { 4695 uint8_t att_type; 4696 4697 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4698 case LPFC_ASYNC_LINK_STATUS_DOWN: 4699 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4700 att_type = LPFC_ATT_LINK_DOWN; 4701 break; 4702 case LPFC_ASYNC_LINK_STATUS_UP: 4703 /* Ignore physical link up events - wait for logical link up */ 4704 att_type = LPFC_ATT_RESERVED; 4705 break; 4706 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4707 att_type = LPFC_ATT_LINK_UP; 4708 break; 4709 default: 4710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4711 "0399 Invalid link attention type: x%x\n", 4712 bf_get(lpfc_acqe_link_status, acqe_link)); 4713 att_type = LPFC_ATT_RESERVED; 4714 break; 4715 } 4716 return att_type; 4717 } 4718 4719 /** 4720 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4721 * @phba: pointer to lpfc hba data structure. 4722 * 4723 * This routine is to get an SLI3 FC port's link speed in Mbps. 4724 * 4725 * Return: link speed in terms of Mbps. 4726 **/ 4727 uint32_t 4728 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4729 { 4730 uint32_t link_speed; 4731 4732 if (!lpfc_is_link_up(phba)) 4733 return 0; 4734 4735 if (phba->sli_rev <= LPFC_SLI_REV3) { 4736 switch (phba->fc_linkspeed) { 4737 case LPFC_LINK_SPEED_1GHZ: 4738 link_speed = 1000; 4739 break; 4740 case LPFC_LINK_SPEED_2GHZ: 4741 link_speed = 2000; 4742 break; 4743 case LPFC_LINK_SPEED_4GHZ: 4744 link_speed = 4000; 4745 break; 4746 case LPFC_LINK_SPEED_8GHZ: 4747 link_speed = 8000; 4748 break; 4749 case LPFC_LINK_SPEED_10GHZ: 4750 link_speed = 10000; 4751 break; 4752 case LPFC_LINK_SPEED_16GHZ: 4753 link_speed = 16000; 4754 break; 4755 default: 4756 link_speed = 0; 4757 } 4758 } else { 4759 if (phba->sli4_hba.link_state.logical_speed) 4760 link_speed = 4761 phba->sli4_hba.link_state.logical_speed; 4762 else 4763 link_speed = phba->sli4_hba.link_state.speed; 4764 } 4765 return link_speed; 4766 } 4767 4768 /** 4769 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4770 * @phba: pointer to lpfc hba data structure. 4771 * @evt_code: asynchronous event code. 4772 * @speed_code: asynchronous event link speed code. 4773 * 4774 * This routine is to parse the giving SLI4 async event link speed code into 4775 * value of Mbps for the link speed. 4776 * 4777 * Return: link speed in terms of Mbps. 4778 **/ 4779 static uint32_t 4780 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4781 uint8_t speed_code) 4782 { 4783 uint32_t port_speed; 4784 4785 switch (evt_code) { 4786 case LPFC_TRAILER_CODE_LINK: 4787 switch (speed_code) { 4788 case LPFC_ASYNC_LINK_SPEED_ZERO: 4789 port_speed = 0; 4790 break; 4791 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4792 port_speed = 10; 4793 break; 4794 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4795 port_speed = 100; 4796 break; 4797 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4798 port_speed = 1000; 4799 break; 4800 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4801 port_speed = 10000; 4802 break; 4803 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4804 port_speed = 20000; 4805 break; 4806 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4807 port_speed = 25000; 4808 break; 4809 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4810 port_speed = 40000; 4811 break; 4812 default: 4813 port_speed = 0; 4814 } 4815 break; 4816 case LPFC_TRAILER_CODE_FC: 4817 switch (speed_code) { 4818 case LPFC_FC_LA_SPEED_UNKNOWN: 4819 port_speed = 0; 4820 break; 4821 case LPFC_FC_LA_SPEED_1G: 4822 port_speed = 1000; 4823 break; 4824 case LPFC_FC_LA_SPEED_2G: 4825 port_speed = 2000; 4826 break; 4827 case LPFC_FC_LA_SPEED_4G: 4828 port_speed = 4000; 4829 break; 4830 case LPFC_FC_LA_SPEED_8G: 4831 port_speed = 8000; 4832 break; 4833 case LPFC_FC_LA_SPEED_10G: 4834 port_speed = 10000; 4835 break; 4836 case LPFC_FC_LA_SPEED_16G: 4837 port_speed = 16000; 4838 break; 4839 case LPFC_FC_LA_SPEED_32G: 4840 port_speed = 32000; 4841 break; 4842 case LPFC_FC_LA_SPEED_64G: 4843 port_speed = 64000; 4844 break; 4845 case LPFC_FC_LA_SPEED_128G: 4846 port_speed = 128000; 4847 break; 4848 default: 4849 port_speed = 0; 4850 } 4851 break; 4852 default: 4853 port_speed = 0; 4854 } 4855 return port_speed; 4856 } 4857 4858 /** 4859 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4860 * @phba: pointer to lpfc hba data structure. 4861 * @acqe_link: pointer to the async link completion queue entry. 4862 * 4863 * This routine is to handle the SLI4 asynchronous FCoE link event. 4864 **/ 4865 static void 4866 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4867 struct lpfc_acqe_link *acqe_link) 4868 { 4869 struct lpfc_dmabuf *mp; 4870 LPFC_MBOXQ_t *pmb; 4871 MAILBOX_t *mb; 4872 struct lpfc_mbx_read_top *la; 4873 uint8_t att_type; 4874 int rc; 4875 4876 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4877 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4878 return; 4879 phba->fcoe_eventtag = acqe_link->event_tag; 4880 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4881 if (!pmb) { 4882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4883 "0395 The mboxq allocation failed\n"); 4884 return; 4885 } 4886 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4887 if (!mp) { 4888 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4889 "0396 The lpfc_dmabuf allocation failed\n"); 4890 goto out_free_pmb; 4891 } 4892 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4893 if (!mp->virt) { 4894 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4895 "0397 The mbuf allocation failed\n"); 4896 goto out_free_dmabuf; 4897 } 4898 4899 /* Cleanup any outstanding ELS commands */ 4900 lpfc_els_flush_all_cmd(phba); 4901 4902 /* Block ELS IOCBs until we have done process link event */ 4903 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4904 4905 /* Update link event statistics */ 4906 phba->sli.slistat.link_event++; 4907 4908 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4909 lpfc_read_topology(phba, pmb, mp); 4910 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4911 pmb->vport = phba->pport; 4912 4913 /* Keep the link status for extra SLI4 state machine reference */ 4914 phba->sli4_hba.link_state.speed = 4915 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4916 bf_get(lpfc_acqe_link_speed, acqe_link)); 4917 phba->sli4_hba.link_state.duplex = 4918 bf_get(lpfc_acqe_link_duplex, acqe_link); 4919 phba->sli4_hba.link_state.status = 4920 bf_get(lpfc_acqe_link_status, acqe_link); 4921 phba->sli4_hba.link_state.type = 4922 bf_get(lpfc_acqe_link_type, acqe_link); 4923 phba->sli4_hba.link_state.number = 4924 bf_get(lpfc_acqe_link_number, acqe_link); 4925 phba->sli4_hba.link_state.fault = 4926 bf_get(lpfc_acqe_link_fault, acqe_link); 4927 phba->sli4_hba.link_state.logical_speed = 4928 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4929 4930 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4931 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4932 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4933 "Logical speed:%dMbps Fault:%d\n", 4934 phba->sli4_hba.link_state.speed, 4935 phba->sli4_hba.link_state.topology, 4936 phba->sli4_hba.link_state.status, 4937 phba->sli4_hba.link_state.type, 4938 phba->sli4_hba.link_state.number, 4939 phba->sli4_hba.link_state.logical_speed, 4940 phba->sli4_hba.link_state.fault); 4941 /* 4942 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4943 * topology info. Note: Optional for non FC-AL ports. 4944 */ 4945 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4946 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4947 if (rc == MBX_NOT_FINISHED) 4948 goto out_free_dmabuf; 4949 return; 4950 } 4951 /* 4952 * For FCoE Mode: fill in all the topology information we need and call 4953 * the READ_TOPOLOGY completion routine to continue without actually 4954 * sending the READ_TOPOLOGY mailbox command to the port. 4955 */ 4956 /* Initialize completion status */ 4957 mb = &pmb->u.mb; 4958 mb->mbxStatus = MBX_SUCCESS; 4959 4960 /* Parse port fault information field */ 4961 lpfc_sli4_parse_latt_fault(phba, acqe_link); 4962 4963 /* Parse and translate link attention fields */ 4964 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4965 la->eventTag = acqe_link->event_tag; 4966 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4967 bf_set(lpfc_mbx_read_top_link_spd, la, 4968 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4969 4970 /* Fake the the following irrelvant fields */ 4971 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4972 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4973 bf_set(lpfc_mbx_read_top_il, la, 0); 4974 bf_set(lpfc_mbx_read_top_pb, la, 0); 4975 bf_set(lpfc_mbx_read_top_fa, la, 0); 4976 bf_set(lpfc_mbx_read_top_mm, la, 0); 4977 4978 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4979 lpfc_mbx_cmpl_read_topology(phba, pmb); 4980 4981 return; 4982 4983 out_free_dmabuf: 4984 kfree(mp); 4985 out_free_pmb: 4986 mempool_free(pmb, phba->mbox_mem_pool); 4987 } 4988 4989 /** 4990 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read 4991 * topology. 4992 * @phba: pointer to lpfc hba data structure. 4993 * @evt_code: asynchronous event code. 4994 * @speed_code: asynchronous event link speed code. 4995 * 4996 * This routine is to parse the giving SLI4 async event link speed code into 4997 * value of Read topology link speed. 4998 * 4999 * Return: link speed in terms of Read topology. 5000 **/ 5001 static uint8_t 5002 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code) 5003 { 5004 uint8_t port_speed; 5005 5006 switch (speed_code) { 5007 case LPFC_FC_LA_SPEED_1G: 5008 port_speed = LPFC_LINK_SPEED_1GHZ; 5009 break; 5010 case LPFC_FC_LA_SPEED_2G: 5011 port_speed = LPFC_LINK_SPEED_2GHZ; 5012 break; 5013 case LPFC_FC_LA_SPEED_4G: 5014 port_speed = LPFC_LINK_SPEED_4GHZ; 5015 break; 5016 case LPFC_FC_LA_SPEED_8G: 5017 port_speed = LPFC_LINK_SPEED_8GHZ; 5018 break; 5019 case LPFC_FC_LA_SPEED_16G: 5020 port_speed = LPFC_LINK_SPEED_16GHZ; 5021 break; 5022 case LPFC_FC_LA_SPEED_32G: 5023 port_speed = LPFC_LINK_SPEED_32GHZ; 5024 break; 5025 case LPFC_FC_LA_SPEED_64G: 5026 port_speed = LPFC_LINK_SPEED_64GHZ; 5027 break; 5028 case LPFC_FC_LA_SPEED_128G: 5029 port_speed = LPFC_LINK_SPEED_128GHZ; 5030 break; 5031 case LPFC_FC_LA_SPEED_256G: 5032 port_speed = LPFC_LINK_SPEED_256GHZ; 5033 break; 5034 default: 5035 port_speed = 0; 5036 break; 5037 } 5038 5039 return port_speed; 5040 } 5041 5042 #define trunk_link_status(__idx)\ 5043 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\ 5044 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\ 5045 "Link up" : "Link down") : "NA" 5046 /* Did port __idx reported an error */ 5047 #define trunk_port_fault(__idx)\ 5048 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\ 5049 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA" 5050 5051 static void 5052 lpfc_update_trunk_link_status(struct lpfc_hba *phba, 5053 struct lpfc_acqe_fc_la *acqe_fc) 5054 { 5055 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc); 5056 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc); 5057 5058 phba->sli4_hba.link_state.speed = 5059 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 5060 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 5061 5062 phba->sli4_hba.link_state.logical_speed = 5063 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 5064 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */ 5065 phba->fc_linkspeed = 5066 lpfc_async_link_speed_to_read_top( 5067 phba, 5068 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 5069 5070 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) { 5071 phba->trunk_link.link0.state = 5072 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc) 5073 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 5074 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0; 5075 } 5076 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) { 5077 phba->trunk_link.link1.state = 5078 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc) 5079 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 5080 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0; 5081 } 5082 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) { 5083 phba->trunk_link.link2.state = 5084 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc) 5085 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 5086 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0; 5087 } 5088 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) { 5089 phba->trunk_link.link3.state = 5090 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc) 5091 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 5092 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0; 5093 } 5094 5095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5096 "2910 Async FC Trunking Event - Speed:%d\n" 5097 "\tLogical speed:%d " 5098 "port0: %s port1: %s port2: %s port3: %s\n", 5099 phba->sli4_hba.link_state.speed, 5100 phba->sli4_hba.link_state.logical_speed, 5101 trunk_link_status(0), trunk_link_status(1), 5102 trunk_link_status(2), trunk_link_status(3)); 5103 5104 if (port_fault) 5105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5106 "3202 trunk error:0x%x (%s) seen on port0:%s " 5107 /* 5108 * SLI-4: We have only 0xA error codes 5109 * defined as of now. print an appropriate 5110 * message in case driver needs to be updated. 5111 */ 5112 "port1:%s port2:%s port3:%s\n", err, err > 0xA ? 5113 "UNDEFINED. update driver." : trunk_errmsg[err], 5114 trunk_port_fault(0), trunk_port_fault(1), 5115 trunk_port_fault(2), trunk_port_fault(3)); 5116 } 5117 5118 5119 /** 5120 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 5121 * @phba: pointer to lpfc hba data structure. 5122 * @acqe_fc: pointer to the async fc completion queue entry. 5123 * 5124 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 5125 * that the event was received and then issue a read_topology mailbox command so 5126 * that the rest of the driver will treat it the same as SLI3. 5127 **/ 5128 static void 5129 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 5130 { 5131 struct lpfc_dmabuf *mp; 5132 LPFC_MBOXQ_t *pmb; 5133 MAILBOX_t *mb; 5134 struct lpfc_mbx_read_top *la; 5135 int rc; 5136 5137 if (bf_get(lpfc_trailer_type, acqe_fc) != 5138 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 5139 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5140 "2895 Non FC link Event detected.(%d)\n", 5141 bf_get(lpfc_trailer_type, acqe_fc)); 5142 return; 5143 } 5144 5145 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) == 5146 LPFC_FC_LA_TYPE_TRUNKING_EVENT) { 5147 lpfc_update_trunk_link_status(phba, acqe_fc); 5148 return; 5149 } 5150 5151 /* Keep the link status for extra SLI4 state machine reference */ 5152 phba->sli4_hba.link_state.speed = 5153 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 5154 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 5155 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 5156 phba->sli4_hba.link_state.topology = 5157 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 5158 phba->sli4_hba.link_state.status = 5159 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 5160 phba->sli4_hba.link_state.type = 5161 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 5162 phba->sli4_hba.link_state.number = 5163 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 5164 phba->sli4_hba.link_state.fault = 5165 bf_get(lpfc_acqe_link_fault, acqe_fc); 5166 5167 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) == 5168 LPFC_FC_LA_TYPE_LINK_DOWN) 5169 phba->sli4_hba.link_state.logical_speed = 0; 5170 else if (!phba->sli4_hba.conf_trunk) 5171 phba->sli4_hba.link_state.logical_speed = 5172 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 5173 5174 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5175 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 5176 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 5177 "%dMbps Fault:%d\n", 5178 phba->sli4_hba.link_state.speed, 5179 phba->sli4_hba.link_state.topology, 5180 phba->sli4_hba.link_state.status, 5181 phba->sli4_hba.link_state.type, 5182 phba->sli4_hba.link_state.number, 5183 phba->sli4_hba.link_state.logical_speed, 5184 phba->sli4_hba.link_state.fault); 5185 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5186 if (!pmb) { 5187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5188 "2897 The mboxq allocation failed\n"); 5189 return; 5190 } 5191 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5192 if (!mp) { 5193 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5194 "2898 The lpfc_dmabuf allocation failed\n"); 5195 goto out_free_pmb; 5196 } 5197 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 5198 if (!mp->virt) { 5199 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5200 "2899 The mbuf allocation failed\n"); 5201 goto out_free_dmabuf; 5202 } 5203 5204 /* Cleanup any outstanding ELS commands */ 5205 lpfc_els_flush_all_cmd(phba); 5206 5207 /* Block ELS IOCBs until we have done process link event */ 5208 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 5209 5210 /* Update link event statistics */ 5211 phba->sli.slistat.link_event++; 5212 5213 /* Create lpfc_handle_latt mailbox command from link ACQE */ 5214 lpfc_read_topology(phba, pmb, mp); 5215 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 5216 pmb->vport = phba->pport; 5217 5218 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 5219 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 5220 5221 switch (phba->sli4_hba.link_state.status) { 5222 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 5223 phba->link_flag |= LS_MDS_LINK_DOWN; 5224 break; 5225 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 5226 phba->link_flag |= LS_MDS_LOOPBACK; 5227 break; 5228 default: 5229 break; 5230 } 5231 5232 /* Initialize completion status */ 5233 mb = &pmb->u.mb; 5234 mb->mbxStatus = MBX_SUCCESS; 5235 5236 /* Parse port fault information field */ 5237 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc); 5238 5239 /* Parse and translate link attention fields */ 5240 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 5241 la->eventTag = acqe_fc->event_tag; 5242 5243 if (phba->sli4_hba.link_state.status == 5244 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 5245 bf_set(lpfc_mbx_read_top_att_type, la, 5246 LPFC_FC_LA_TYPE_UNEXP_WWPN); 5247 } else { 5248 bf_set(lpfc_mbx_read_top_att_type, la, 5249 LPFC_FC_LA_TYPE_LINK_DOWN); 5250 } 5251 /* Invoke the mailbox command callback function */ 5252 lpfc_mbx_cmpl_read_topology(phba, pmb); 5253 5254 return; 5255 } 5256 5257 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 5258 if (rc == MBX_NOT_FINISHED) 5259 goto out_free_dmabuf; 5260 return; 5261 5262 out_free_dmabuf: 5263 kfree(mp); 5264 out_free_pmb: 5265 mempool_free(pmb, phba->mbox_mem_pool); 5266 } 5267 5268 /** 5269 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 5270 * @phba: pointer to lpfc hba data structure. 5271 * @acqe_fc: pointer to the async SLI completion queue entry. 5272 * 5273 * This routine is to handle the SLI4 asynchronous SLI events. 5274 **/ 5275 static void 5276 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 5277 { 5278 char port_name; 5279 char message[128]; 5280 uint8_t status; 5281 uint8_t evt_type; 5282 uint8_t operational = 0; 5283 struct temp_event temp_event_data; 5284 struct lpfc_acqe_misconfigured_event *misconfigured; 5285 struct Scsi_Host *shost; 5286 struct lpfc_vport **vports; 5287 int rc, i; 5288 5289 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 5290 5291 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5292 "2901 Async SLI event - Type:%d, Event Data: x%08x " 5293 "x%08x x%08x x%08x\n", evt_type, 5294 acqe_sli->event_data1, acqe_sli->event_data2, 5295 acqe_sli->reserved, acqe_sli->trailer); 5296 5297 port_name = phba->Port[0]; 5298 if (port_name == 0x00) 5299 port_name = '?'; /* get port name is empty */ 5300 5301 switch (evt_type) { 5302 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 5303 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 5304 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 5305 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 5306 5307 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 5308 "3190 Over Temperature:%d Celsius- Port Name %c\n", 5309 acqe_sli->event_data1, port_name); 5310 5311 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 5312 shost = lpfc_shost_from_vport(phba->pport); 5313 fc_host_post_vendor_event(shost, fc_get_event_number(), 5314 sizeof(temp_event_data), 5315 (char *)&temp_event_data, 5316 SCSI_NL_VID_TYPE_PCI 5317 | PCI_VENDOR_ID_EMULEX); 5318 break; 5319 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 5320 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 5321 temp_event_data.event_code = LPFC_NORMAL_TEMP; 5322 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 5323 5324 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5325 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 5326 acqe_sli->event_data1, port_name); 5327 5328 shost = lpfc_shost_from_vport(phba->pport); 5329 fc_host_post_vendor_event(shost, fc_get_event_number(), 5330 sizeof(temp_event_data), 5331 (char *)&temp_event_data, 5332 SCSI_NL_VID_TYPE_PCI 5333 | PCI_VENDOR_ID_EMULEX); 5334 break; 5335 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 5336 misconfigured = (struct lpfc_acqe_misconfigured_event *) 5337 &acqe_sli->event_data1; 5338 5339 /* fetch the status for this port */ 5340 switch (phba->sli4_hba.lnk_info.lnk_no) { 5341 case LPFC_LINK_NUMBER_0: 5342 status = bf_get(lpfc_sli_misconfigured_port0_state, 5343 &misconfigured->theEvent); 5344 operational = bf_get(lpfc_sli_misconfigured_port0_op, 5345 &misconfigured->theEvent); 5346 break; 5347 case LPFC_LINK_NUMBER_1: 5348 status = bf_get(lpfc_sli_misconfigured_port1_state, 5349 &misconfigured->theEvent); 5350 operational = bf_get(lpfc_sli_misconfigured_port1_op, 5351 &misconfigured->theEvent); 5352 break; 5353 case LPFC_LINK_NUMBER_2: 5354 status = bf_get(lpfc_sli_misconfigured_port2_state, 5355 &misconfigured->theEvent); 5356 operational = bf_get(lpfc_sli_misconfigured_port2_op, 5357 &misconfigured->theEvent); 5358 break; 5359 case LPFC_LINK_NUMBER_3: 5360 status = bf_get(lpfc_sli_misconfigured_port3_state, 5361 &misconfigured->theEvent); 5362 operational = bf_get(lpfc_sli_misconfigured_port3_op, 5363 &misconfigured->theEvent); 5364 break; 5365 default: 5366 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5367 "3296 " 5368 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 5369 "event: Invalid link %d", 5370 phba->sli4_hba.lnk_info.lnk_no); 5371 return; 5372 } 5373 5374 /* Skip if optic state unchanged */ 5375 if (phba->sli4_hba.lnk_info.optic_state == status) 5376 return; 5377 5378 switch (status) { 5379 case LPFC_SLI_EVENT_STATUS_VALID: 5380 sprintf(message, "Physical Link is functional"); 5381 break; 5382 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 5383 sprintf(message, "Optics faulted/incorrectly " 5384 "installed/not installed - Reseat optics, " 5385 "if issue not resolved, replace."); 5386 break; 5387 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 5388 sprintf(message, 5389 "Optics of two types installed - Remove one " 5390 "optic or install matching pair of optics."); 5391 break; 5392 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 5393 sprintf(message, "Incompatible optics - Replace with " 5394 "compatible optics for card to function."); 5395 break; 5396 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 5397 sprintf(message, "Unqualified optics - Replace with " 5398 "Avago optics for Warranty and Technical " 5399 "Support - Link is%s operational", 5400 (operational) ? " not" : ""); 5401 break; 5402 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 5403 sprintf(message, "Uncertified optics - Replace with " 5404 "Avago-certified optics to enable link " 5405 "operation - Link is%s operational", 5406 (operational) ? " not" : ""); 5407 break; 5408 default: 5409 /* firmware is reporting a status we don't know about */ 5410 sprintf(message, "Unknown event status x%02x", status); 5411 break; 5412 } 5413 5414 /* Issue READ_CONFIG mbox command to refresh supported speeds */ 5415 rc = lpfc_sli4_read_config(phba); 5416 if (rc) { 5417 phba->lmt = 0; 5418 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5419 "3194 Unable to retrieve supported " 5420 "speeds, rc = 0x%x\n", rc); 5421 } 5422 vports = lpfc_create_vport_work_array(phba); 5423 if (vports != NULL) { 5424 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5425 i++) { 5426 shost = lpfc_shost_from_vport(vports[i]); 5427 lpfc_host_supported_speeds_set(shost); 5428 } 5429 } 5430 lpfc_destroy_vport_work_array(phba, vports); 5431 5432 phba->sli4_hba.lnk_info.optic_state = status; 5433 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5434 "3176 Port Name %c %s\n", port_name, message); 5435 break; 5436 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 5437 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5438 "3192 Remote DPort Test Initiated - " 5439 "Event Data1:x%08x Event Data2: x%08x\n", 5440 acqe_sli->event_data1, acqe_sli->event_data2); 5441 break; 5442 case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN: 5443 /* Misconfigured WWN. Reports that the SLI Port is configured 5444 * to use FA-WWN, but the attached device doesn’t support it. 5445 * No driver action is required. 5446 * Event Data1 - N.A, Event Data2 - N.A 5447 */ 5448 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI, 5449 "2699 Misconfigured FA-WWN - Attached device does " 5450 "not support FA-WWN\n"); 5451 break; 5452 case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE: 5453 /* EEPROM failure. No driver action is required */ 5454 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 5455 "2518 EEPROM failure - " 5456 "Event Data1: x%08x Event Data2: x%08x\n", 5457 acqe_sli->event_data1, acqe_sli->event_data2); 5458 break; 5459 default: 5460 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5461 "3193 Unrecognized SLI event, type: 0x%x", 5462 evt_type); 5463 break; 5464 } 5465 } 5466 5467 /** 5468 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 5469 * @vport: pointer to vport data structure. 5470 * 5471 * This routine is to perform Clear Virtual Link (CVL) on a vport in 5472 * response to a CVL event. 5473 * 5474 * Return the pointer to the ndlp with the vport if successful, otherwise 5475 * return NULL. 5476 **/ 5477 static struct lpfc_nodelist * 5478 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 5479 { 5480 struct lpfc_nodelist *ndlp; 5481 struct Scsi_Host *shost; 5482 struct lpfc_hba *phba; 5483 5484 if (!vport) 5485 return NULL; 5486 phba = vport->phba; 5487 if (!phba) 5488 return NULL; 5489 ndlp = lpfc_findnode_did(vport, Fabric_DID); 5490 if (!ndlp) { 5491 /* Cannot find existing Fabric ndlp, so allocate a new one */ 5492 ndlp = lpfc_nlp_init(vport, Fabric_DID); 5493 if (!ndlp) 5494 return 0; 5495 /* Set the node type */ 5496 ndlp->nlp_type |= NLP_FABRIC; 5497 /* Put ndlp onto node list */ 5498 lpfc_enqueue_node(vport, ndlp); 5499 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5500 /* re-setup ndlp without removing from node list */ 5501 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 5502 if (!ndlp) 5503 return 0; 5504 } 5505 if ((phba->pport->port_state < LPFC_FLOGI) && 5506 (phba->pport->port_state != LPFC_VPORT_FAILED)) 5507 return NULL; 5508 /* If virtual link is not yet instantiated ignore CVL */ 5509 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 5510 && (vport->port_state != LPFC_VPORT_FAILED)) 5511 return NULL; 5512 shost = lpfc_shost_from_vport(vport); 5513 if (!shost) 5514 return NULL; 5515 lpfc_linkdown_port(vport); 5516 lpfc_cleanup_pending_mbox(vport); 5517 spin_lock_irq(shost->host_lock); 5518 vport->fc_flag |= FC_VPORT_CVL_RCVD; 5519 spin_unlock_irq(shost->host_lock); 5520 5521 return ndlp; 5522 } 5523 5524 /** 5525 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 5526 * @vport: pointer to lpfc hba data structure. 5527 * 5528 * This routine is to perform Clear Virtual Link (CVL) on all vports in 5529 * response to a FCF dead event. 5530 **/ 5531 static void 5532 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 5533 { 5534 struct lpfc_vport **vports; 5535 int i; 5536 5537 vports = lpfc_create_vport_work_array(phba); 5538 if (vports) 5539 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 5540 lpfc_sli4_perform_vport_cvl(vports[i]); 5541 lpfc_destroy_vport_work_array(phba, vports); 5542 } 5543 5544 /** 5545 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 5546 * @phba: pointer to lpfc hba data structure. 5547 * @acqe_link: pointer to the async fcoe completion queue entry. 5548 * 5549 * This routine is to handle the SLI4 asynchronous fcoe event. 5550 **/ 5551 static void 5552 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 5553 struct lpfc_acqe_fip *acqe_fip) 5554 { 5555 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 5556 int rc; 5557 struct lpfc_vport *vport; 5558 struct lpfc_nodelist *ndlp; 5559 struct Scsi_Host *shost; 5560 int active_vlink_present; 5561 struct lpfc_vport **vports; 5562 int i; 5563 5564 phba->fc_eventTag = acqe_fip->event_tag; 5565 phba->fcoe_eventtag = acqe_fip->event_tag; 5566 switch (event_type) { 5567 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 5568 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 5569 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 5570 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5571 LOG_DISCOVERY, 5572 "2546 New FCF event, evt_tag:x%x, " 5573 "index:x%x\n", 5574 acqe_fip->event_tag, 5575 acqe_fip->index); 5576 else 5577 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 5578 LOG_DISCOVERY, 5579 "2788 FCF param modified event, " 5580 "evt_tag:x%x, index:x%x\n", 5581 acqe_fip->event_tag, 5582 acqe_fip->index); 5583 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5584 /* 5585 * During period of FCF discovery, read the FCF 5586 * table record indexed by the event to update 5587 * FCF roundrobin failover eligible FCF bmask. 5588 */ 5589 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5590 LOG_DISCOVERY, 5591 "2779 Read FCF (x%x) for updating " 5592 "roundrobin FCF failover bmask\n", 5593 acqe_fip->index); 5594 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 5595 } 5596 5597 /* If the FCF discovery is in progress, do nothing. */ 5598 spin_lock_irq(&phba->hbalock); 5599 if (phba->hba_flag & FCF_TS_INPROG) { 5600 spin_unlock_irq(&phba->hbalock); 5601 break; 5602 } 5603 /* If fast FCF failover rescan event is pending, do nothing */ 5604 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) { 5605 spin_unlock_irq(&phba->hbalock); 5606 break; 5607 } 5608 5609 /* If the FCF has been in discovered state, do nothing. */ 5610 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5611 spin_unlock_irq(&phba->hbalock); 5612 break; 5613 } 5614 spin_unlock_irq(&phba->hbalock); 5615 5616 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5617 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5618 "2770 Start FCF table scan per async FCF " 5619 "event, evt_tag:x%x, index:x%x\n", 5620 acqe_fip->event_tag, acqe_fip->index); 5621 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5622 LPFC_FCOE_FCF_GET_FIRST); 5623 if (rc) 5624 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5625 "2547 Issue FCF scan read FCF mailbox " 5626 "command failed (x%x)\n", rc); 5627 break; 5628 5629 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5630 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5631 "2548 FCF Table full count 0x%x tag 0x%x\n", 5632 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5633 acqe_fip->event_tag); 5634 break; 5635 5636 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5637 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5638 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5639 "2549 FCF (x%x) disconnected from network, " 5640 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5641 /* 5642 * If we are in the middle of FCF failover process, clear 5643 * the corresponding FCF bit in the roundrobin bitmap. 5644 */ 5645 spin_lock_irq(&phba->hbalock); 5646 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5647 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5648 spin_unlock_irq(&phba->hbalock); 5649 /* Update FLOGI FCF failover eligible FCF bmask */ 5650 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5651 break; 5652 } 5653 spin_unlock_irq(&phba->hbalock); 5654 5655 /* If the event is not for currently used fcf do nothing */ 5656 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5657 break; 5658 5659 /* 5660 * Otherwise, request the port to rediscover the entire FCF 5661 * table for a fast recovery from case that the current FCF 5662 * is no longer valid as we are not in the middle of FCF 5663 * failover process already. 5664 */ 5665 spin_lock_irq(&phba->hbalock); 5666 /* Mark the fast failover process in progress */ 5667 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5668 spin_unlock_irq(&phba->hbalock); 5669 5670 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5671 "2771 Start FCF fast failover process due to " 5672 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5673 "\n", acqe_fip->event_tag, acqe_fip->index); 5674 rc = lpfc_sli4_redisc_fcf_table(phba); 5675 if (rc) { 5676 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5677 LOG_DISCOVERY, 5678 "2772 Issue FCF rediscover mailbox " 5679 "command failed, fail through to FCF " 5680 "dead event\n"); 5681 spin_lock_irq(&phba->hbalock); 5682 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5683 spin_unlock_irq(&phba->hbalock); 5684 /* 5685 * Last resort will fail over by treating this 5686 * as a link down to FCF registration. 5687 */ 5688 lpfc_sli4_fcf_dead_failthrough(phba); 5689 } else { 5690 /* Reset FCF roundrobin bmask for new discovery */ 5691 lpfc_sli4_clear_fcf_rr_bmask(phba); 5692 /* 5693 * Handling fast FCF failover to a DEAD FCF event is 5694 * considered equalivant to receiving CVL to all vports. 5695 */ 5696 lpfc_sli4_perform_all_vport_cvl(phba); 5697 } 5698 break; 5699 case LPFC_FIP_EVENT_TYPE_CVL: 5700 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5701 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5702 "2718 Clear Virtual Link Received for VPI 0x%x" 5703 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5704 5705 vport = lpfc_find_vport_by_vpid(phba, 5706 acqe_fip->index); 5707 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5708 if (!ndlp) 5709 break; 5710 active_vlink_present = 0; 5711 5712 vports = lpfc_create_vport_work_array(phba); 5713 if (vports) { 5714 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5715 i++) { 5716 if ((!(vports[i]->fc_flag & 5717 FC_VPORT_CVL_RCVD)) && 5718 (vports[i]->port_state > LPFC_FDISC)) { 5719 active_vlink_present = 1; 5720 break; 5721 } 5722 } 5723 lpfc_destroy_vport_work_array(phba, vports); 5724 } 5725 5726 /* 5727 * Don't re-instantiate if vport is marked for deletion. 5728 * If we are here first then vport_delete is going to wait 5729 * for discovery to complete. 5730 */ 5731 if (!(vport->load_flag & FC_UNLOADING) && 5732 active_vlink_present) { 5733 /* 5734 * If there are other active VLinks present, 5735 * re-instantiate the Vlink using FDISC. 5736 */ 5737 mod_timer(&ndlp->nlp_delayfunc, 5738 jiffies + msecs_to_jiffies(1000)); 5739 shost = lpfc_shost_from_vport(vport); 5740 spin_lock_irq(shost->host_lock); 5741 ndlp->nlp_flag |= NLP_DELAY_TMO; 5742 spin_unlock_irq(shost->host_lock); 5743 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5744 vport->port_state = LPFC_FDISC; 5745 } else { 5746 /* 5747 * Otherwise, we request port to rediscover 5748 * the entire FCF table for a fast recovery 5749 * from possible case that the current FCF 5750 * is no longer valid if we are not already 5751 * in the FCF failover process. 5752 */ 5753 spin_lock_irq(&phba->hbalock); 5754 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5755 spin_unlock_irq(&phba->hbalock); 5756 break; 5757 } 5758 /* Mark the fast failover process in progress */ 5759 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5760 spin_unlock_irq(&phba->hbalock); 5761 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5762 LOG_DISCOVERY, 5763 "2773 Start FCF failover per CVL, " 5764 "evt_tag:x%x\n", acqe_fip->event_tag); 5765 rc = lpfc_sli4_redisc_fcf_table(phba); 5766 if (rc) { 5767 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5768 LOG_DISCOVERY, 5769 "2774 Issue FCF rediscover " 5770 "mailbox command failed, " 5771 "through to CVL event\n"); 5772 spin_lock_irq(&phba->hbalock); 5773 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5774 spin_unlock_irq(&phba->hbalock); 5775 /* 5776 * Last resort will be re-try on the 5777 * the current registered FCF entry. 5778 */ 5779 lpfc_retry_pport_discovery(phba); 5780 } else 5781 /* 5782 * Reset FCF roundrobin bmask for new 5783 * discovery. 5784 */ 5785 lpfc_sli4_clear_fcf_rr_bmask(phba); 5786 } 5787 break; 5788 default: 5789 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5790 "0288 Unknown FCoE event type 0x%x event tag " 5791 "0x%x\n", event_type, acqe_fip->event_tag); 5792 break; 5793 } 5794 } 5795 5796 /** 5797 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5798 * @phba: pointer to lpfc hba data structure. 5799 * @acqe_link: pointer to the async dcbx completion queue entry. 5800 * 5801 * This routine is to handle the SLI4 asynchronous dcbx event. 5802 **/ 5803 static void 5804 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5805 struct lpfc_acqe_dcbx *acqe_dcbx) 5806 { 5807 phba->fc_eventTag = acqe_dcbx->event_tag; 5808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5809 "0290 The SLI4 DCBX asynchronous event is not " 5810 "handled yet\n"); 5811 } 5812 5813 /** 5814 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5815 * @phba: pointer to lpfc hba data structure. 5816 * @acqe_link: pointer to the async grp5 completion queue entry. 5817 * 5818 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5819 * is an asynchronous notified of a logical link speed change. The Port 5820 * reports the logical link speed in units of 10Mbps. 5821 **/ 5822 static void 5823 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5824 struct lpfc_acqe_grp5 *acqe_grp5) 5825 { 5826 uint16_t prev_ll_spd; 5827 5828 phba->fc_eventTag = acqe_grp5->event_tag; 5829 phba->fcoe_eventtag = acqe_grp5->event_tag; 5830 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5831 phba->sli4_hba.link_state.logical_speed = 5832 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5833 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5834 "2789 GRP5 Async Event: Updating logical link speed " 5835 "from %dMbps to %dMbps\n", prev_ll_spd, 5836 phba->sli4_hba.link_state.logical_speed); 5837 } 5838 5839 /** 5840 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5841 * @phba: pointer to lpfc hba data structure. 5842 * 5843 * This routine is invoked by the worker thread to process all the pending 5844 * SLI4 asynchronous events. 5845 **/ 5846 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5847 { 5848 struct lpfc_cq_event *cq_event; 5849 5850 /* First, declare the async event has been handled */ 5851 spin_lock_irq(&phba->hbalock); 5852 phba->hba_flag &= ~ASYNC_EVENT; 5853 spin_unlock_irq(&phba->hbalock); 5854 /* Now, handle all the async events */ 5855 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5856 /* Get the first event from the head of the event queue */ 5857 spin_lock_irq(&phba->hbalock); 5858 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5859 cq_event, struct lpfc_cq_event, list); 5860 spin_unlock_irq(&phba->hbalock); 5861 /* Process the asynchronous event */ 5862 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5863 case LPFC_TRAILER_CODE_LINK: 5864 lpfc_sli4_async_link_evt(phba, 5865 &cq_event->cqe.acqe_link); 5866 break; 5867 case LPFC_TRAILER_CODE_FCOE: 5868 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5869 break; 5870 case LPFC_TRAILER_CODE_DCBX: 5871 lpfc_sli4_async_dcbx_evt(phba, 5872 &cq_event->cqe.acqe_dcbx); 5873 break; 5874 case LPFC_TRAILER_CODE_GRP5: 5875 lpfc_sli4_async_grp5_evt(phba, 5876 &cq_event->cqe.acqe_grp5); 5877 break; 5878 case LPFC_TRAILER_CODE_FC: 5879 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5880 break; 5881 case LPFC_TRAILER_CODE_SLI: 5882 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5883 break; 5884 default: 5885 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5886 "1804 Invalid asynchronous event code: " 5887 "x%x\n", bf_get(lpfc_trailer_code, 5888 &cq_event->cqe.mcqe_cmpl)); 5889 break; 5890 } 5891 /* Free the completion event processed to the free pool */ 5892 lpfc_sli4_cq_event_release(phba, cq_event); 5893 } 5894 } 5895 5896 /** 5897 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5898 * @phba: pointer to lpfc hba data structure. 5899 * 5900 * This routine is invoked by the worker thread to process FCF table 5901 * rediscovery pending completion event. 5902 **/ 5903 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5904 { 5905 int rc; 5906 5907 spin_lock_irq(&phba->hbalock); 5908 /* Clear FCF rediscovery timeout event */ 5909 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5910 /* Clear driver fast failover FCF record flag */ 5911 phba->fcf.failover_rec.flag = 0; 5912 /* Set state for FCF fast failover */ 5913 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5914 spin_unlock_irq(&phba->hbalock); 5915 5916 /* Scan FCF table from the first entry to re-discover SAN */ 5917 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5918 "2777 Start post-quiescent FCF table scan\n"); 5919 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5920 if (rc) 5921 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5922 "2747 Issue FCF scan read FCF mailbox " 5923 "command failed 0x%x\n", rc); 5924 } 5925 5926 /** 5927 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5928 * @phba: pointer to lpfc hba data structure. 5929 * @dev_grp: The HBA PCI-Device group number. 5930 * 5931 * This routine is invoked to set up the per HBA PCI-Device group function 5932 * API jump table entries. 5933 * 5934 * Return: 0 if success, otherwise -ENODEV 5935 **/ 5936 int 5937 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5938 { 5939 int rc; 5940 5941 /* Set up lpfc PCI-device group */ 5942 phba->pci_dev_grp = dev_grp; 5943 5944 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5945 if (dev_grp == LPFC_PCI_DEV_OC) 5946 phba->sli_rev = LPFC_SLI_REV4; 5947 5948 /* Set up device INIT API function jump table */ 5949 rc = lpfc_init_api_table_setup(phba, dev_grp); 5950 if (rc) 5951 return -ENODEV; 5952 /* Set up SCSI API function jump table */ 5953 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5954 if (rc) 5955 return -ENODEV; 5956 /* Set up SLI API function jump table */ 5957 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5958 if (rc) 5959 return -ENODEV; 5960 /* Set up MBOX API function jump table */ 5961 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5962 if (rc) 5963 return -ENODEV; 5964 5965 return 0; 5966 } 5967 5968 /** 5969 * lpfc_log_intr_mode - Log the active interrupt mode 5970 * @phba: pointer to lpfc hba data structure. 5971 * @intr_mode: active interrupt mode adopted. 5972 * 5973 * This routine it invoked to log the currently used active interrupt mode 5974 * to the device. 5975 **/ 5976 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5977 { 5978 switch (intr_mode) { 5979 case 0: 5980 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5981 "0470 Enable INTx interrupt mode.\n"); 5982 break; 5983 case 1: 5984 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5985 "0481 Enabled MSI interrupt mode.\n"); 5986 break; 5987 case 2: 5988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5989 "0480 Enabled MSI-X interrupt mode.\n"); 5990 break; 5991 default: 5992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5993 "0482 Illegal interrupt mode.\n"); 5994 break; 5995 } 5996 return; 5997 } 5998 5999 /** 6000 * lpfc_cpumask_of_node_init - initalizes cpumask of phba's NUMA node 6001 * @phba: Pointer to HBA context object. 6002 * 6003 **/ 6004 static void 6005 lpfc_cpumask_of_node_init(struct lpfc_hba *phba) 6006 { 6007 unsigned int cpu, numa_node; 6008 struct cpumask *numa_mask = &phba->sli4_hba.numa_mask; 6009 6010 cpumask_clear(numa_mask); 6011 6012 /* Check if we're a NUMA architecture */ 6013 numa_node = dev_to_node(&phba->pcidev->dev); 6014 if (numa_node == NUMA_NO_NODE) 6015 return; 6016 6017 for_each_possible_cpu(cpu) 6018 if (cpu_to_node(cpu) == numa_node) 6019 cpumask_set_cpu(cpu, numa_mask); 6020 } 6021 6022 /** 6023 * lpfc_enable_pci_dev - Enable a generic PCI device. 6024 * @phba: pointer to lpfc hba data structure. 6025 * 6026 * This routine is invoked to enable the PCI device that is common to all 6027 * PCI devices. 6028 * 6029 * Return codes 6030 * 0 - successful 6031 * other values - error 6032 **/ 6033 static int 6034 lpfc_enable_pci_dev(struct lpfc_hba *phba) 6035 { 6036 struct pci_dev *pdev; 6037 6038 /* Obtain PCI device reference */ 6039 if (!phba->pcidev) 6040 goto out_error; 6041 else 6042 pdev = phba->pcidev; 6043 /* Enable PCI device */ 6044 if (pci_enable_device_mem(pdev)) 6045 goto out_error; 6046 /* Request PCI resource for the device */ 6047 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 6048 goto out_disable_device; 6049 /* Set up device as PCI master and save state for EEH */ 6050 pci_set_master(pdev); 6051 pci_try_set_mwi(pdev); 6052 pci_save_state(pdev); 6053 6054 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 6055 if (pci_is_pcie(pdev)) 6056 pdev->needs_freset = 1; 6057 6058 return 0; 6059 6060 out_disable_device: 6061 pci_disable_device(pdev); 6062 out_error: 6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6064 "1401 Failed to enable pci device\n"); 6065 return -ENODEV; 6066 } 6067 6068 /** 6069 * lpfc_disable_pci_dev - Disable a generic PCI device. 6070 * @phba: pointer to lpfc hba data structure. 6071 * 6072 * This routine is invoked to disable the PCI device that is common to all 6073 * PCI devices. 6074 **/ 6075 static void 6076 lpfc_disable_pci_dev(struct lpfc_hba *phba) 6077 { 6078 struct pci_dev *pdev; 6079 6080 /* Obtain PCI device reference */ 6081 if (!phba->pcidev) 6082 return; 6083 else 6084 pdev = phba->pcidev; 6085 /* Release PCI resource and disable PCI device */ 6086 pci_release_mem_regions(pdev); 6087 pci_disable_device(pdev); 6088 6089 return; 6090 } 6091 6092 /** 6093 * lpfc_reset_hba - Reset a hba 6094 * @phba: pointer to lpfc hba data structure. 6095 * 6096 * This routine is invoked to reset a hba device. It brings the HBA 6097 * offline, performs a board restart, and then brings the board back 6098 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 6099 * on outstanding mailbox commands. 6100 **/ 6101 void 6102 lpfc_reset_hba(struct lpfc_hba *phba) 6103 { 6104 /* If resets are disabled then set error state and return. */ 6105 if (!phba->cfg_enable_hba_reset) { 6106 phba->link_state = LPFC_HBA_ERROR; 6107 return; 6108 } 6109 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 6110 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 6111 else 6112 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 6113 lpfc_offline(phba); 6114 lpfc_sli_brdrestart(phba); 6115 lpfc_online(phba); 6116 lpfc_unblock_mgmt_io(phba); 6117 } 6118 6119 /** 6120 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 6121 * @phba: pointer to lpfc hba data structure. 6122 * 6123 * This function enables the PCI SR-IOV virtual functions to a physical 6124 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 6125 * enable the number of virtual functions to the physical function. As 6126 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 6127 * API call does not considered as an error condition for most of the device. 6128 **/ 6129 uint16_t 6130 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 6131 { 6132 struct pci_dev *pdev = phba->pcidev; 6133 uint16_t nr_virtfn; 6134 int pos; 6135 6136 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 6137 if (pos == 0) 6138 return 0; 6139 6140 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 6141 return nr_virtfn; 6142 } 6143 6144 /** 6145 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 6146 * @phba: pointer to lpfc hba data structure. 6147 * @nr_vfn: number of virtual functions to be enabled. 6148 * 6149 * This function enables the PCI SR-IOV virtual functions to a physical 6150 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 6151 * enable the number of virtual functions to the physical function. As 6152 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 6153 * API call does not considered as an error condition for most of the device. 6154 **/ 6155 int 6156 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 6157 { 6158 struct pci_dev *pdev = phba->pcidev; 6159 uint16_t max_nr_vfn; 6160 int rc; 6161 6162 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 6163 if (nr_vfn > max_nr_vfn) { 6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6165 "3057 Requested vfs (%d) greater than " 6166 "supported vfs (%d)", nr_vfn, max_nr_vfn); 6167 return -EINVAL; 6168 } 6169 6170 rc = pci_enable_sriov(pdev, nr_vfn); 6171 if (rc) { 6172 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6173 "2806 Failed to enable sriov on this device " 6174 "with vfn number nr_vf:%d, rc:%d\n", 6175 nr_vfn, rc); 6176 } else 6177 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6178 "2807 Successful enable sriov on this device " 6179 "with vfn number nr_vf:%d\n", nr_vfn); 6180 return rc; 6181 } 6182 6183 /** 6184 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 6185 * @phba: pointer to lpfc hba data structure. 6186 * 6187 * This routine is invoked to set up the driver internal resources before the 6188 * device specific resource setup to support the HBA device it attached to. 6189 * 6190 * Return codes 6191 * 0 - successful 6192 * other values - error 6193 **/ 6194 static int 6195 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 6196 { 6197 struct lpfc_sli *psli = &phba->sli; 6198 6199 /* 6200 * Driver resources common to all SLI revisions 6201 */ 6202 atomic_set(&phba->fast_event_count, 0); 6203 spin_lock_init(&phba->hbalock); 6204 6205 /* Initialize ndlp management spinlock */ 6206 spin_lock_init(&phba->ndlp_lock); 6207 6208 /* Initialize port_list spinlock */ 6209 spin_lock_init(&phba->port_list_lock); 6210 INIT_LIST_HEAD(&phba->port_list); 6211 6212 INIT_LIST_HEAD(&phba->work_list); 6213 init_waitqueue_head(&phba->wait_4_mlo_m_q); 6214 6215 /* Initialize the wait queue head for the kernel thread */ 6216 init_waitqueue_head(&phba->work_waitq); 6217 6218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6219 "1403 Protocols supported %s %s %s\n", 6220 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 6221 "SCSI" : " "), 6222 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 6223 "NVME" : " "), 6224 (phba->nvmet_support ? "NVMET" : " ")); 6225 6226 /* Initialize the IO buffer list used by driver for SLI3 SCSI */ 6227 spin_lock_init(&phba->scsi_buf_list_get_lock); 6228 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 6229 spin_lock_init(&phba->scsi_buf_list_put_lock); 6230 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 6231 6232 /* Initialize the fabric iocb list */ 6233 INIT_LIST_HEAD(&phba->fabric_iocb_list); 6234 6235 /* Initialize list to save ELS buffers */ 6236 INIT_LIST_HEAD(&phba->elsbuf); 6237 6238 /* Initialize FCF connection rec list */ 6239 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 6240 6241 /* Initialize OAS configuration list */ 6242 spin_lock_init(&phba->devicelock); 6243 INIT_LIST_HEAD(&phba->luns); 6244 6245 /* MBOX heartbeat timer */ 6246 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); 6247 /* Fabric block timer */ 6248 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); 6249 /* EA polling mode timer */ 6250 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); 6251 /* Heartbeat timer */ 6252 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); 6253 6254 INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work); 6255 6256 return 0; 6257 } 6258 6259 /** 6260 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 6261 * @phba: pointer to lpfc hba data structure. 6262 * 6263 * This routine is invoked to set up the driver internal resources specific to 6264 * support the SLI-3 HBA device it attached to. 6265 * 6266 * Return codes 6267 * 0 - successful 6268 * other values - error 6269 **/ 6270 static int 6271 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 6272 { 6273 int rc, entry_sz; 6274 6275 /* 6276 * Initialize timers used by driver 6277 */ 6278 6279 /* FCP polling mode timer */ 6280 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); 6281 6282 /* Host attention work mask setup */ 6283 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 6284 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 6285 6286 /* Get all the module params for configuring this host */ 6287 lpfc_get_cfgparam(phba); 6288 /* Set up phase-1 common device driver resources */ 6289 6290 rc = lpfc_setup_driver_resource_phase1(phba); 6291 if (rc) 6292 return -ENODEV; 6293 6294 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 6295 phba->menlo_flag |= HBA_MENLO_SUPPORT; 6296 /* check for menlo minimum sg count */ 6297 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 6298 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 6299 } 6300 6301 if (!phba->sli.sli3_ring) 6302 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING, 6303 sizeof(struct lpfc_sli_ring), 6304 GFP_KERNEL); 6305 if (!phba->sli.sli3_ring) 6306 return -ENOMEM; 6307 6308 /* 6309 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 6310 * used to create the sg_dma_buf_pool must be dynamically calculated. 6311 */ 6312 6313 /* Initialize the host templates the configured values. */ 6314 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 6315 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 6316 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 6317 6318 if (phba->sli_rev == LPFC_SLI_REV4) 6319 entry_sz = sizeof(struct sli4_sge); 6320 else 6321 entry_sz = sizeof(struct ulp_bde64); 6322 6323 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 6324 if (phba->cfg_enable_bg) { 6325 /* 6326 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 6327 * the FCP rsp, and a BDE for each. Sice we have no control 6328 * over how many protection data segments the SCSI Layer 6329 * will hand us (ie: there could be one for every block 6330 * in the IO), we just allocate enough BDEs to accomidate 6331 * our max amount and we need to limit lpfc_sg_seg_cnt to 6332 * minimize the risk of running out. 6333 */ 6334 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6335 sizeof(struct fcp_rsp) + 6336 (LPFC_MAX_SG_SEG_CNT * entry_sz); 6337 6338 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 6339 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 6340 6341 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 6342 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 6343 } else { 6344 /* 6345 * The scsi_buf for a regular I/O will hold the FCP cmnd, 6346 * the FCP rsp, a BDE for each, and a BDE for up to 6347 * cfg_sg_seg_cnt data segments. 6348 */ 6349 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6350 sizeof(struct fcp_rsp) + 6351 ((phba->cfg_sg_seg_cnt + 2) * entry_sz); 6352 6353 /* Total BDEs in BPL for scsi_sg_list */ 6354 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 6355 } 6356 6357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 6358 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 6359 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 6360 phba->cfg_total_seg_cnt); 6361 6362 phba->max_vpi = LPFC_MAX_VPI; 6363 /* This will be set to correct value after config_port mbox */ 6364 phba->max_vports = 0; 6365 6366 /* 6367 * Initialize the SLI Layer to run with lpfc HBAs. 6368 */ 6369 lpfc_sli_setup(phba); 6370 lpfc_sli_queue_init(phba); 6371 6372 /* Allocate device driver memory */ 6373 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 6374 return -ENOMEM; 6375 6376 phba->lpfc_sg_dma_buf_pool = 6377 dma_pool_create("lpfc_sg_dma_buf_pool", 6378 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size, 6379 BPL_ALIGN_SZ, 0); 6380 6381 if (!phba->lpfc_sg_dma_buf_pool) 6382 goto fail_free_mem; 6383 6384 phba->lpfc_cmd_rsp_buf_pool = 6385 dma_pool_create("lpfc_cmd_rsp_buf_pool", 6386 &phba->pcidev->dev, 6387 sizeof(struct fcp_cmnd) + 6388 sizeof(struct fcp_rsp), 6389 BPL_ALIGN_SZ, 0); 6390 6391 if (!phba->lpfc_cmd_rsp_buf_pool) 6392 goto fail_free_dma_buf_pool; 6393 6394 /* 6395 * Enable sr-iov virtual functions if supported and configured 6396 * through the module parameter. 6397 */ 6398 if (phba->cfg_sriov_nr_virtfn > 0) { 6399 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6400 phba->cfg_sriov_nr_virtfn); 6401 if (rc) { 6402 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6403 "2808 Requested number of SR-IOV " 6404 "virtual functions (%d) is not " 6405 "supported\n", 6406 phba->cfg_sriov_nr_virtfn); 6407 phba->cfg_sriov_nr_virtfn = 0; 6408 } 6409 } 6410 6411 return 0; 6412 6413 fail_free_dma_buf_pool: 6414 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool); 6415 phba->lpfc_sg_dma_buf_pool = NULL; 6416 fail_free_mem: 6417 lpfc_mem_free(phba); 6418 return -ENOMEM; 6419 } 6420 6421 /** 6422 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 6423 * @phba: pointer to lpfc hba data structure. 6424 * 6425 * This routine is invoked to unset the driver internal resources set up 6426 * specific for supporting the SLI-3 HBA device it attached to. 6427 **/ 6428 static void 6429 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 6430 { 6431 /* Free device driver memory allocated */ 6432 lpfc_mem_free_all(phba); 6433 6434 return; 6435 } 6436 6437 /** 6438 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 6439 * @phba: pointer to lpfc hba data structure. 6440 * 6441 * This routine is invoked to set up the driver internal resources specific to 6442 * support the SLI-4 HBA device it attached to. 6443 * 6444 * Return codes 6445 * 0 - successful 6446 * other values - error 6447 **/ 6448 static int 6449 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 6450 { 6451 LPFC_MBOXQ_t *mboxq; 6452 MAILBOX_t *mb; 6453 int rc, i, max_buf_size; 6454 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 6455 struct lpfc_mqe *mqe; 6456 int longs; 6457 int extra; 6458 uint64_t wwn; 6459 u32 if_type; 6460 u32 if_fam; 6461 6462 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 6463 phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1; 6464 phba->sli4_hba.curr_disp_cpu = 0; 6465 lpfc_cpumask_of_node_init(phba); 6466 6467 /* Get all the module params for configuring this host */ 6468 lpfc_get_cfgparam(phba); 6469 6470 /* Set up phase-1 common device driver resources */ 6471 rc = lpfc_setup_driver_resource_phase1(phba); 6472 if (rc) 6473 return -ENODEV; 6474 6475 /* Before proceed, wait for POST done and device ready */ 6476 rc = lpfc_sli4_post_status_check(phba); 6477 if (rc) 6478 return -ENODEV; 6479 6480 /* Allocate all driver workqueues here */ 6481 6482 /* The lpfc_wq workqueue for deferred irq use */ 6483 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0); 6484 6485 /* 6486 * Initialize timers used by driver 6487 */ 6488 6489 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); 6490 6491 /* FCF rediscover timer */ 6492 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); 6493 6494 /* 6495 * Control structure for handling external multi-buffer mailbox 6496 * command pass-through. 6497 */ 6498 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 6499 sizeof(struct lpfc_mbox_ext_buf_ctx)); 6500 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 6501 6502 phba->max_vpi = LPFC_MAX_VPI; 6503 6504 /* This will be set to correct value after the read_config mbox */ 6505 phba->max_vports = 0; 6506 6507 /* Program the default value of vlan_id and fc_map */ 6508 phba->valid_vlan = 0; 6509 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 6510 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 6511 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 6512 6513 /* 6514 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 6515 * we will associate a new ring, for each EQ/CQ/WQ tuple. 6516 * The WQ create will allocate the ring. 6517 */ 6518 6519 /* Initialize buffer queue management fields */ 6520 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 6521 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 6522 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 6523 6524 /* 6525 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 6526 */ 6527 /* Initialize the Abort buffer list used by driver */ 6528 spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock); 6529 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list); 6530 6531 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 6532 /* Initialize the Abort nvme buffer list used by driver */ 6533 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock); 6534 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6535 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 6536 spin_lock_init(&phba->sli4_hba.t_active_list_lock); 6537 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list); 6538 } 6539 6540 /* This abort list used by worker thread */ 6541 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 6542 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 6543 6544 /* 6545 * Initialize driver internal slow-path work queues 6546 */ 6547 6548 /* Driver internel slow-path CQ Event pool */ 6549 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 6550 /* Response IOCB work queue list */ 6551 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 6552 /* Asynchronous event CQ Event work queue list */ 6553 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 6554 /* Fast-path XRI aborted CQ Event work queue list */ 6555 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 6556 /* Slow-path XRI aborted CQ Event work queue list */ 6557 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 6558 /* Receive queue CQ Event work queue list */ 6559 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 6560 6561 /* Initialize extent block lists. */ 6562 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 6563 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 6564 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 6565 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 6566 6567 /* Initialize mboxq lists. If the early init routines fail 6568 * these lists need to be correctly initialized. 6569 */ 6570 INIT_LIST_HEAD(&phba->sli.mboxq); 6571 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 6572 6573 /* initialize optic_state to 0xFF */ 6574 phba->sli4_hba.lnk_info.optic_state = 0xff; 6575 6576 /* Allocate device driver memory */ 6577 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 6578 if (rc) 6579 return -ENOMEM; 6580 6581 /* IF Type 2 ports get initialized now. */ 6582 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 6583 LPFC_SLI_INTF_IF_TYPE_2) { 6584 rc = lpfc_pci_function_reset(phba); 6585 if (unlikely(rc)) { 6586 rc = -ENODEV; 6587 goto out_free_mem; 6588 } 6589 phba->temp_sensor_support = 1; 6590 } 6591 6592 /* Create the bootstrap mailbox command */ 6593 rc = lpfc_create_bootstrap_mbox(phba); 6594 if (unlikely(rc)) 6595 goto out_free_mem; 6596 6597 /* Set up the host's endian order with the device. */ 6598 rc = lpfc_setup_endian_order(phba); 6599 if (unlikely(rc)) 6600 goto out_free_bsmbx; 6601 6602 /* Set up the hba's configuration parameters. */ 6603 rc = lpfc_sli4_read_config(phba); 6604 if (unlikely(rc)) 6605 goto out_free_bsmbx; 6606 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6607 if (unlikely(rc)) 6608 goto out_free_bsmbx; 6609 6610 /* IF Type 0 ports get initialized now. */ 6611 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6612 LPFC_SLI_INTF_IF_TYPE_0) { 6613 rc = lpfc_pci_function_reset(phba); 6614 if (unlikely(rc)) 6615 goto out_free_bsmbx; 6616 } 6617 6618 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6619 GFP_KERNEL); 6620 if (!mboxq) { 6621 rc = -ENOMEM; 6622 goto out_free_bsmbx; 6623 } 6624 6625 /* Check for NVMET being configured */ 6626 phba->nvmet_support = 0; 6627 if (lpfc_enable_nvmet_cnt) { 6628 6629 /* First get WWN of HBA instance */ 6630 lpfc_read_nv(phba, mboxq); 6631 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6632 if (rc != MBX_SUCCESS) { 6633 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6634 "6016 Mailbox failed , mbxCmd x%x " 6635 "READ_NV, mbxStatus x%x\n", 6636 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6637 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6638 mempool_free(mboxq, phba->mbox_mem_pool); 6639 rc = -EIO; 6640 goto out_free_bsmbx; 6641 } 6642 mb = &mboxq->u.mb; 6643 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6644 sizeof(uint64_t)); 6645 wwn = cpu_to_be64(wwn); 6646 phba->sli4_hba.wwnn.u.name = wwn; 6647 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6648 sizeof(uint64_t)); 6649 /* wwn is WWPN of HBA instance */ 6650 wwn = cpu_to_be64(wwn); 6651 phba->sli4_hba.wwpn.u.name = wwn; 6652 6653 /* Check to see if it matches any module parameter */ 6654 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6655 if (wwn == lpfc_enable_nvmet[i]) { 6656 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6657 if (lpfc_nvmet_mem_alloc(phba)) 6658 break; 6659 6660 phba->nvmet_support = 1; /* a match */ 6661 6662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6663 "6017 NVME Target %016llx\n", 6664 wwn); 6665 #else 6666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6667 "6021 Can't enable NVME Target." 6668 " NVME_TARGET_FC infrastructure" 6669 " is not in kernel\n"); 6670 #endif 6671 /* Not supported for NVMET */ 6672 phba->cfg_xri_rebalancing = 0; 6673 break; 6674 } 6675 } 6676 } 6677 6678 lpfc_nvme_mod_param_dep(phba); 6679 6680 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6681 lpfc_supported_pages(mboxq); 6682 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6683 if (!rc) { 6684 mqe = &mboxq->u.mqe; 6685 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6686 LPFC_MAX_SUPPORTED_PAGES); 6687 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6688 switch (pn_page[i]) { 6689 case LPFC_SLI4_PARAMETERS: 6690 phba->sli4_hba.pc_sli4_params.supported = 1; 6691 break; 6692 default: 6693 break; 6694 } 6695 } 6696 /* Read the port's SLI4 Parameters capabilities if supported. */ 6697 if (phba->sli4_hba.pc_sli4_params.supported) 6698 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6699 if (rc) { 6700 mempool_free(mboxq, phba->mbox_mem_pool); 6701 rc = -EIO; 6702 goto out_free_bsmbx; 6703 } 6704 } 6705 6706 /* 6707 * Get sli4 parameters that override parameters from Port capabilities. 6708 * If this call fails, it isn't critical unless the SLI4 parameters come 6709 * back in conflict. 6710 */ 6711 rc = lpfc_get_sli4_parameters(phba, mboxq); 6712 if (rc) { 6713 if_type = bf_get(lpfc_sli_intf_if_type, 6714 &phba->sli4_hba.sli_intf); 6715 if_fam = bf_get(lpfc_sli_intf_sli_family, 6716 &phba->sli4_hba.sli_intf); 6717 if (phba->sli4_hba.extents_in_use && 6718 phba->sli4_hba.rpi_hdrs_in_use) { 6719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6720 "2999 Unsupported SLI4 Parameters " 6721 "Extents and RPI headers enabled.\n"); 6722 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 && 6723 if_fam == LPFC_SLI_INTF_FAMILY_BE2) { 6724 mempool_free(mboxq, phba->mbox_mem_pool); 6725 rc = -EIO; 6726 goto out_free_bsmbx; 6727 } 6728 } 6729 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 && 6730 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) { 6731 mempool_free(mboxq, phba->mbox_mem_pool); 6732 rc = -EIO; 6733 goto out_free_bsmbx; 6734 } 6735 } 6736 6737 /* 6738 * 1 for cmd, 1 for rsp, NVME adds an extra one 6739 * for boundary conditions in its max_sgl_segment template. 6740 */ 6741 extra = 2; 6742 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 6743 extra++; 6744 6745 /* 6746 * It doesn't matter what family our adapter is in, we are 6747 * limited to 2 Pages, 512 SGEs, for our SGL. 6748 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 6749 */ 6750 max_buf_size = (2 * SLI4_PAGE_SIZE); 6751 6752 /* 6753 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 6754 * used to create the sg_dma_buf_pool must be calculated. 6755 */ 6756 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) { 6757 /* Both cfg_enable_bg and cfg_external_dif code paths */ 6758 6759 /* 6760 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 6761 * the FCP rsp, and a SGE. Sice we have no control 6762 * over how many protection segments the SCSI Layer 6763 * will hand us (ie: there could be one for every block 6764 * in the IO), just allocate enough SGEs to accomidate 6765 * our max amount and we need to limit lpfc_sg_seg_cnt 6766 * to minimize the risk of running out. 6767 */ 6768 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6769 sizeof(struct fcp_rsp) + max_buf_size; 6770 6771 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 6772 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 6773 6774 /* 6775 * If supporting DIF, reduce the seg count for scsi to 6776 * allow room for the DIF sges. 6777 */ 6778 if (phba->cfg_enable_bg && 6779 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF) 6780 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF; 6781 else 6782 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; 6783 6784 } else { 6785 /* 6786 * The scsi_buf for a regular I/O holds the FCP cmnd, 6787 * the FCP rsp, a SGE for each, and a SGE for up to 6788 * cfg_sg_seg_cnt data segments. 6789 */ 6790 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6791 sizeof(struct fcp_rsp) + 6792 ((phba->cfg_sg_seg_cnt + extra) * 6793 sizeof(struct sli4_sge)); 6794 6795 /* Total SGEs for scsi_sg_list */ 6796 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra; 6797 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; 6798 6799 /* 6800 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only 6801 * need to post 1 page for the SGL. 6802 */ 6803 } 6804 6805 if (phba->cfg_xpsgl && !phba->nvmet_support) 6806 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE; 6807 else if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 6808 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 6809 else 6810 phba->cfg_sg_dma_buf_size = 6811 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 6812 6813 phba->border_sge_num = phba->cfg_sg_dma_buf_size / 6814 sizeof(struct sli4_sge); 6815 6816 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */ 6817 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 6818 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { 6819 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT, 6820 "6300 Reducing NVME sg segment " 6821 "cnt to %d\n", 6822 LPFC_MAX_NVME_SEG_CNT); 6823 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 6824 } else 6825 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; 6826 } 6827 6828 /* Initialize the host templates with the updated values. */ 6829 lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt; 6830 lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt; 6831 lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt; 6832 6833 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 6834 "9087 sg_seg_cnt:%d dmabuf_size:%d " 6835 "total:%d scsi:%d nvme:%d\n", 6836 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 6837 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt, 6838 phba->cfg_nvme_seg_cnt); 6839 6840 if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE) 6841 i = phba->cfg_sg_dma_buf_size; 6842 else 6843 i = SLI4_PAGE_SIZE; 6844 6845 phba->lpfc_sg_dma_buf_pool = 6846 dma_pool_create("lpfc_sg_dma_buf_pool", 6847 &phba->pcidev->dev, 6848 phba->cfg_sg_dma_buf_size, 6849 i, 0); 6850 if (!phba->lpfc_sg_dma_buf_pool) 6851 goto out_free_bsmbx; 6852 6853 phba->lpfc_cmd_rsp_buf_pool = 6854 dma_pool_create("lpfc_cmd_rsp_buf_pool", 6855 &phba->pcidev->dev, 6856 sizeof(struct fcp_cmnd) + 6857 sizeof(struct fcp_rsp), 6858 i, 0); 6859 if (!phba->lpfc_cmd_rsp_buf_pool) 6860 goto out_free_sg_dma_buf; 6861 6862 mempool_free(mboxq, phba->mbox_mem_pool); 6863 6864 /* Verify OAS is supported */ 6865 lpfc_sli4_oas_verify(phba); 6866 6867 /* Verify RAS support on adapter */ 6868 lpfc_sli4_ras_init(phba); 6869 6870 /* Verify all the SLI4 queues */ 6871 rc = lpfc_sli4_queue_verify(phba); 6872 if (rc) 6873 goto out_free_cmd_rsp_buf; 6874 6875 /* Create driver internal CQE event pool */ 6876 rc = lpfc_sli4_cq_event_pool_create(phba); 6877 if (rc) 6878 goto out_free_cmd_rsp_buf; 6879 6880 /* Initialize sgl lists per host */ 6881 lpfc_init_sgl_list(phba); 6882 6883 /* Allocate and initialize active sgl array */ 6884 rc = lpfc_init_active_sgl_array(phba); 6885 if (rc) { 6886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6887 "1430 Failed to initialize sgl list.\n"); 6888 goto out_destroy_cq_event_pool; 6889 } 6890 rc = lpfc_sli4_init_rpi_hdrs(phba); 6891 if (rc) { 6892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6893 "1432 Failed to initialize rpi headers.\n"); 6894 goto out_free_active_sgl; 6895 } 6896 6897 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6898 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6899 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long), 6900 GFP_KERNEL); 6901 if (!phba->fcf.fcf_rr_bmask) { 6902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6903 "2759 Failed allocate memory for FCF round " 6904 "robin failover bmask\n"); 6905 rc = -ENOMEM; 6906 goto out_remove_rpi_hdrs; 6907 } 6908 6909 phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann, 6910 sizeof(struct lpfc_hba_eq_hdl), 6911 GFP_KERNEL); 6912 if (!phba->sli4_hba.hba_eq_hdl) { 6913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6914 "2572 Failed allocate memory for " 6915 "fast-path per-EQ handle array\n"); 6916 rc = -ENOMEM; 6917 goto out_free_fcf_rr_bmask; 6918 } 6919 6920 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu, 6921 sizeof(struct lpfc_vector_map_info), 6922 GFP_KERNEL); 6923 if (!phba->sli4_hba.cpu_map) { 6924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6925 "3327 Failed allocate memory for msi-x " 6926 "interrupt vector mapping\n"); 6927 rc = -ENOMEM; 6928 goto out_free_hba_eq_hdl; 6929 } 6930 6931 phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info); 6932 if (!phba->sli4_hba.eq_info) { 6933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6934 "3321 Failed allocation for per_cpu stats\n"); 6935 rc = -ENOMEM; 6936 goto out_free_hba_cpu_map; 6937 } 6938 /* 6939 * Enable sr-iov virtual functions if supported and configured 6940 * through the module parameter. 6941 */ 6942 if (phba->cfg_sriov_nr_virtfn > 0) { 6943 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6944 phba->cfg_sriov_nr_virtfn); 6945 if (rc) { 6946 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6947 "3020 Requested number of SR-IOV " 6948 "virtual functions (%d) is not " 6949 "supported\n", 6950 phba->cfg_sriov_nr_virtfn); 6951 phba->cfg_sriov_nr_virtfn = 0; 6952 } 6953 } 6954 6955 return 0; 6956 6957 out_free_hba_cpu_map: 6958 kfree(phba->sli4_hba.cpu_map); 6959 out_free_hba_eq_hdl: 6960 kfree(phba->sli4_hba.hba_eq_hdl); 6961 out_free_fcf_rr_bmask: 6962 kfree(phba->fcf.fcf_rr_bmask); 6963 out_remove_rpi_hdrs: 6964 lpfc_sli4_remove_rpi_hdrs(phba); 6965 out_free_active_sgl: 6966 lpfc_free_active_sgl(phba); 6967 out_destroy_cq_event_pool: 6968 lpfc_sli4_cq_event_pool_destroy(phba); 6969 out_free_cmd_rsp_buf: 6970 dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool); 6971 phba->lpfc_cmd_rsp_buf_pool = NULL; 6972 out_free_sg_dma_buf: 6973 dma_pool_destroy(phba->lpfc_sg_dma_buf_pool); 6974 phba->lpfc_sg_dma_buf_pool = NULL; 6975 out_free_bsmbx: 6976 lpfc_destroy_bootstrap_mbox(phba); 6977 out_free_mem: 6978 lpfc_mem_free(phba); 6979 return rc; 6980 } 6981 6982 /** 6983 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6984 * @phba: pointer to lpfc hba data structure. 6985 * 6986 * This routine is invoked to unset the driver internal resources set up 6987 * specific for supporting the SLI-4 HBA device it attached to. 6988 **/ 6989 static void 6990 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6991 { 6992 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6993 6994 free_percpu(phba->sli4_hba.eq_info); 6995 6996 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6997 kfree(phba->sli4_hba.cpu_map); 6998 phba->sli4_hba.num_possible_cpu = 0; 6999 phba->sli4_hba.num_present_cpu = 0; 7000 phba->sli4_hba.curr_disp_cpu = 0; 7001 cpumask_clear(&phba->sli4_hba.numa_mask); 7002 7003 /* Free memory allocated for fast-path work queue handles */ 7004 kfree(phba->sli4_hba.hba_eq_hdl); 7005 7006 /* Free the allocated rpi headers. */ 7007 lpfc_sli4_remove_rpi_hdrs(phba); 7008 lpfc_sli4_remove_rpis(phba); 7009 7010 /* Free eligible FCF index bmask */ 7011 kfree(phba->fcf.fcf_rr_bmask); 7012 7013 /* Free the ELS sgl list */ 7014 lpfc_free_active_sgl(phba); 7015 lpfc_free_els_sgl_list(phba); 7016 lpfc_free_nvmet_sgl_list(phba); 7017 7018 /* Free the completion queue EQ event pool */ 7019 lpfc_sli4_cq_event_release_all(phba); 7020 lpfc_sli4_cq_event_pool_destroy(phba); 7021 7022 /* Release resource identifiers. */ 7023 lpfc_sli4_dealloc_resource_identifiers(phba); 7024 7025 /* Free the bsmbx region. */ 7026 lpfc_destroy_bootstrap_mbox(phba); 7027 7028 /* Free the SLI Layer memory with SLI4 HBAs */ 7029 lpfc_mem_free_all(phba); 7030 7031 /* Free the current connect table */ 7032 list_for_each_entry_safe(conn_entry, next_conn_entry, 7033 &phba->fcf_conn_rec_list, list) { 7034 list_del_init(&conn_entry->list); 7035 kfree(conn_entry); 7036 } 7037 7038 return; 7039 } 7040 7041 /** 7042 * lpfc_init_api_table_setup - Set up init api function jump table 7043 * @phba: The hba struct for which this call is being executed. 7044 * @dev_grp: The HBA PCI-Device group number. 7045 * 7046 * This routine sets up the device INIT interface API function jump table 7047 * in @phba struct. 7048 * 7049 * Returns: 0 - success, -ENODEV - failure. 7050 **/ 7051 int 7052 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 7053 { 7054 phba->lpfc_hba_init_link = lpfc_hba_init_link; 7055 phba->lpfc_hba_down_link = lpfc_hba_down_link; 7056 phba->lpfc_selective_reset = lpfc_selective_reset; 7057 switch (dev_grp) { 7058 case LPFC_PCI_DEV_LP: 7059 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 7060 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 7061 phba->lpfc_stop_port = lpfc_stop_port_s3; 7062 break; 7063 case LPFC_PCI_DEV_OC: 7064 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 7065 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 7066 phba->lpfc_stop_port = lpfc_stop_port_s4; 7067 break; 7068 default: 7069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7070 "1431 Invalid HBA PCI-device group: 0x%x\n", 7071 dev_grp); 7072 return -ENODEV; 7073 break; 7074 } 7075 return 0; 7076 } 7077 7078 /** 7079 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 7080 * @phba: pointer to lpfc hba data structure. 7081 * 7082 * This routine is invoked to set up the driver internal resources after the 7083 * device specific resource setup to support the HBA device it attached to. 7084 * 7085 * Return codes 7086 * 0 - successful 7087 * other values - error 7088 **/ 7089 static int 7090 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 7091 { 7092 int error; 7093 7094 /* Startup the kernel thread for this host adapter. */ 7095 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7096 "lpfc_worker_%d", phba->brd_no); 7097 if (IS_ERR(phba->worker_thread)) { 7098 error = PTR_ERR(phba->worker_thread); 7099 return error; 7100 } 7101 7102 return 0; 7103 } 7104 7105 /** 7106 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 7107 * @phba: pointer to lpfc hba data structure. 7108 * 7109 * This routine is invoked to unset the driver internal resources set up after 7110 * the device specific resource setup for supporting the HBA device it 7111 * attached to. 7112 **/ 7113 static void 7114 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 7115 { 7116 if (phba->wq) { 7117 flush_workqueue(phba->wq); 7118 destroy_workqueue(phba->wq); 7119 phba->wq = NULL; 7120 } 7121 7122 /* Stop kernel worker thread */ 7123 if (phba->worker_thread) 7124 kthread_stop(phba->worker_thread); 7125 } 7126 7127 /** 7128 * lpfc_free_iocb_list - Free iocb list. 7129 * @phba: pointer to lpfc hba data structure. 7130 * 7131 * This routine is invoked to free the driver's IOCB list and memory. 7132 **/ 7133 void 7134 lpfc_free_iocb_list(struct lpfc_hba *phba) 7135 { 7136 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 7137 7138 spin_lock_irq(&phba->hbalock); 7139 list_for_each_entry_safe(iocbq_entry, iocbq_next, 7140 &phba->lpfc_iocb_list, list) { 7141 list_del(&iocbq_entry->list); 7142 kfree(iocbq_entry); 7143 phba->total_iocbq_bufs--; 7144 } 7145 spin_unlock_irq(&phba->hbalock); 7146 7147 return; 7148 } 7149 7150 /** 7151 * lpfc_init_iocb_list - Allocate and initialize iocb list. 7152 * @phba: pointer to lpfc hba data structure. 7153 * 7154 * This routine is invoked to allocate and initizlize the driver's IOCB 7155 * list and set up the IOCB tag array accordingly. 7156 * 7157 * Return codes 7158 * 0 - successful 7159 * other values - error 7160 **/ 7161 int 7162 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 7163 { 7164 struct lpfc_iocbq *iocbq_entry = NULL; 7165 uint16_t iotag; 7166 int i; 7167 7168 /* Initialize and populate the iocb list per host. */ 7169 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 7170 for (i = 0; i < iocb_count; i++) { 7171 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 7172 if (iocbq_entry == NULL) { 7173 printk(KERN_ERR "%s: only allocated %d iocbs of " 7174 "expected %d count. Unloading driver.\n", 7175 __func__, i, iocb_count); 7176 goto out_free_iocbq; 7177 } 7178 7179 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 7180 if (iotag == 0) { 7181 kfree(iocbq_entry); 7182 printk(KERN_ERR "%s: failed to allocate IOTAG. " 7183 "Unloading driver.\n", __func__); 7184 goto out_free_iocbq; 7185 } 7186 iocbq_entry->sli4_lxritag = NO_XRI; 7187 iocbq_entry->sli4_xritag = NO_XRI; 7188 7189 spin_lock_irq(&phba->hbalock); 7190 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 7191 phba->total_iocbq_bufs++; 7192 spin_unlock_irq(&phba->hbalock); 7193 } 7194 7195 return 0; 7196 7197 out_free_iocbq: 7198 lpfc_free_iocb_list(phba); 7199 7200 return -ENOMEM; 7201 } 7202 7203 /** 7204 * lpfc_free_sgl_list - Free a given sgl list. 7205 * @phba: pointer to lpfc hba data structure. 7206 * @sglq_list: pointer to the head of sgl list. 7207 * 7208 * This routine is invoked to free a give sgl list and memory. 7209 **/ 7210 void 7211 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 7212 { 7213 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 7214 7215 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 7216 list_del(&sglq_entry->list); 7217 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 7218 kfree(sglq_entry); 7219 } 7220 } 7221 7222 /** 7223 * lpfc_free_els_sgl_list - Free els sgl list. 7224 * @phba: pointer to lpfc hba data structure. 7225 * 7226 * This routine is invoked to free the driver's els sgl list and memory. 7227 **/ 7228 static void 7229 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 7230 { 7231 LIST_HEAD(sglq_list); 7232 7233 /* Retrieve all els sgls from driver list */ 7234 spin_lock_irq(&phba->hbalock); 7235 spin_lock(&phba->sli4_hba.sgl_list_lock); 7236 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 7237 spin_unlock(&phba->sli4_hba.sgl_list_lock); 7238 spin_unlock_irq(&phba->hbalock); 7239 7240 /* Now free the sgl list */ 7241 lpfc_free_sgl_list(phba, &sglq_list); 7242 } 7243 7244 /** 7245 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 7246 * @phba: pointer to lpfc hba data structure. 7247 * 7248 * This routine is invoked to free the driver's nvmet sgl list and memory. 7249 **/ 7250 static void 7251 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 7252 { 7253 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 7254 LIST_HEAD(sglq_list); 7255 7256 /* Retrieve all nvmet sgls from driver list */ 7257 spin_lock_irq(&phba->hbalock); 7258 spin_lock(&phba->sli4_hba.sgl_list_lock); 7259 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 7260 spin_unlock(&phba->sli4_hba.sgl_list_lock); 7261 spin_unlock_irq(&phba->hbalock); 7262 7263 /* Now free the sgl list */ 7264 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 7265 list_del(&sglq_entry->list); 7266 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 7267 kfree(sglq_entry); 7268 } 7269 7270 /* Update the nvmet_xri_cnt to reflect no current sgls. 7271 * The next initialization cycle sets the count and allocates 7272 * the sgls over again. 7273 */ 7274 phba->sli4_hba.nvmet_xri_cnt = 0; 7275 } 7276 7277 /** 7278 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 7279 * @phba: pointer to lpfc hba data structure. 7280 * 7281 * This routine is invoked to allocate the driver's active sgl memory. 7282 * This array will hold the sglq_entry's for active IOs. 7283 **/ 7284 static int 7285 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 7286 { 7287 int size; 7288 size = sizeof(struct lpfc_sglq *); 7289 size *= phba->sli4_hba.max_cfg_param.max_xri; 7290 7291 phba->sli4_hba.lpfc_sglq_active_list = 7292 kzalloc(size, GFP_KERNEL); 7293 if (!phba->sli4_hba.lpfc_sglq_active_list) 7294 return -ENOMEM; 7295 return 0; 7296 } 7297 7298 /** 7299 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 7300 * @phba: pointer to lpfc hba data structure. 7301 * 7302 * This routine is invoked to walk through the array of active sglq entries 7303 * and free all of the resources. 7304 * This is just a place holder for now. 7305 **/ 7306 static void 7307 lpfc_free_active_sgl(struct lpfc_hba *phba) 7308 { 7309 kfree(phba->sli4_hba.lpfc_sglq_active_list); 7310 } 7311 7312 /** 7313 * lpfc_init_sgl_list - Allocate and initialize sgl list. 7314 * @phba: pointer to lpfc hba data structure. 7315 * 7316 * This routine is invoked to allocate and initizlize the driver's sgl 7317 * list and set up the sgl xritag tag array accordingly. 7318 * 7319 **/ 7320 static void 7321 lpfc_init_sgl_list(struct lpfc_hba *phba) 7322 { 7323 /* Initialize and populate the sglq list per host/VF. */ 7324 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 7325 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7326 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 7327 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 7328 7329 /* els xri-sgl book keeping */ 7330 phba->sli4_hba.els_xri_cnt = 0; 7331 7332 /* nvme xri-buffer book keeping */ 7333 phba->sli4_hba.io_xri_cnt = 0; 7334 } 7335 7336 /** 7337 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 7338 * @phba: pointer to lpfc hba data structure. 7339 * 7340 * This routine is invoked to post rpi header templates to the 7341 * port for those SLI4 ports that do not support extents. This routine 7342 * posts a PAGE_SIZE memory region to the port to hold up to 7343 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 7344 * and should be called only when interrupts are disabled. 7345 * 7346 * Return codes 7347 * 0 - successful 7348 * -ERROR - otherwise. 7349 **/ 7350 int 7351 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 7352 { 7353 int rc = 0; 7354 struct lpfc_rpi_hdr *rpi_hdr; 7355 7356 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 7357 if (!phba->sli4_hba.rpi_hdrs_in_use) 7358 return rc; 7359 if (phba->sli4_hba.extents_in_use) 7360 return -EIO; 7361 7362 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 7363 if (!rpi_hdr) { 7364 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 7365 "0391 Error during rpi post operation\n"); 7366 lpfc_sli4_remove_rpis(phba); 7367 rc = -ENODEV; 7368 } 7369 7370 return rc; 7371 } 7372 7373 /** 7374 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 7375 * @phba: pointer to lpfc hba data structure. 7376 * 7377 * This routine is invoked to allocate a single 4KB memory region to 7378 * support rpis and stores them in the phba. This single region 7379 * provides support for up to 64 rpis. The region is used globally 7380 * by the device. 7381 * 7382 * Returns: 7383 * A valid rpi hdr on success. 7384 * A NULL pointer on any failure. 7385 **/ 7386 struct lpfc_rpi_hdr * 7387 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 7388 { 7389 uint16_t rpi_limit, curr_rpi_range; 7390 struct lpfc_dmabuf *dmabuf; 7391 struct lpfc_rpi_hdr *rpi_hdr; 7392 7393 /* 7394 * If the SLI4 port supports extents, posting the rpi header isn't 7395 * required. Set the expected maximum count and let the actual value 7396 * get set when extents are fully allocated. 7397 */ 7398 if (!phba->sli4_hba.rpi_hdrs_in_use) 7399 return NULL; 7400 if (phba->sli4_hba.extents_in_use) 7401 return NULL; 7402 7403 /* The limit on the logical index is just the max_rpi count. */ 7404 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 7405 7406 spin_lock_irq(&phba->hbalock); 7407 /* 7408 * Establish the starting RPI in this header block. The starting 7409 * rpi is normalized to a zero base because the physical rpi is 7410 * port based. 7411 */ 7412 curr_rpi_range = phba->sli4_hba.next_rpi; 7413 spin_unlock_irq(&phba->hbalock); 7414 7415 /* Reached full RPI range */ 7416 if (curr_rpi_range == rpi_limit) 7417 return NULL; 7418 7419 /* 7420 * First allocate the protocol header region for the port. The 7421 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 7422 */ 7423 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7424 if (!dmabuf) 7425 return NULL; 7426 7427 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 7428 LPFC_HDR_TEMPLATE_SIZE, 7429 &dmabuf->phys, GFP_KERNEL); 7430 if (!dmabuf->virt) { 7431 rpi_hdr = NULL; 7432 goto err_free_dmabuf; 7433 } 7434 7435 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 7436 rpi_hdr = NULL; 7437 goto err_free_coherent; 7438 } 7439 7440 /* Save the rpi header data for cleanup later. */ 7441 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 7442 if (!rpi_hdr) 7443 goto err_free_coherent; 7444 7445 rpi_hdr->dmabuf = dmabuf; 7446 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 7447 rpi_hdr->page_count = 1; 7448 spin_lock_irq(&phba->hbalock); 7449 7450 /* The rpi_hdr stores the logical index only. */ 7451 rpi_hdr->start_rpi = curr_rpi_range; 7452 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 7453 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 7454 7455 spin_unlock_irq(&phba->hbalock); 7456 return rpi_hdr; 7457 7458 err_free_coherent: 7459 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 7460 dmabuf->virt, dmabuf->phys); 7461 err_free_dmabuf: 7462 kfree(dmabuf); 7463 return NULL; 7464 } 7465 7466 /** 7467 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 7468 * @phba: pointer to lpfc hba data structure. 7469 * 7470 * This routine is invoked to remove all memory resources allocated 7471 * to support rpis for SLI4 ports not supporting extents. This routine 7472 * presumes the caller has released all rpis consumed by fabric or port 7473 * logins and is prepared to have the header pages removed. 7474 **/ 7475 void 7476 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 7477 { 7478 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 7479 7480 if (!phba->sli4_hba.rpi_hdrs_in_use) 7481 goto exit; 7482 7483 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 7484 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 7485 list_del(&rpi_hdr->list); 7486 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 7487 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 7488 kfree(rpi_hdr->dmabuf); 7489 kfree(rpi_hdr); 7490 } 7491 exit: 7492 /* There are no rpis available to the port now. */ 7493 phba->sli4_hba.next_rpi = 0; 7494 } 7495 7496 /** 7497 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 7498 * @pdev: pointer to pci device data structure. 7499 * 7500 * This routine is invoked to allocate the driver hba data structure for an 7501 * HBA device. If the allocation is successful, the phba reference to the 7502 * PCI device data structure is set. 7503 * 7504 * Return codes 7505 * pointer to @phba - successful 7506 * NULL - error 7507 **/ 7508 static struct lpfc_hba * 7509 lpfc_hba_alloc(struct pci_dev *pdev) 7510 { 7511 struct lpfc_hba *phba; 7512 7513 /* Allocate memory for HBA structure */ 7514 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 7515 if (!phba) { 7516 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 7517 return NULL; 7518 } 7519 7520 /* Set reference to PCI device in HBA structure */ 7521 phba->pcidev = pdev; 7522 7523 /* Assign an unused board number */ 7524 phba->brd_no = lpfc_get_instance(); 7525 if (phba->brd_no < 0) { 7526 kfree(phba); 7527 return NULL; 7528 } 7529 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 7530 7531 spin_lock_init(&phba->ct_ev_lock); 7532 INIT_LIST_HEAD(&phba->ct_ev_waiters); 7533 7534 return phba; 7535 } 7536 7537 /** 7538 * lpfc_hba_free - Free driver hba data structure with a device. 7539 * @phba: pointer to lpfc hba data structure. 7540 * 7541 * This routine is invoked to free the driver hba data structure with an 7542 * HBA device. 7543 **/ 7544 static void 7545 lpfc_hba_free(struct lpfc_hba *phba) 7546 { 7547 if (phba->sli_rev == LPFC_SLI_REV4) 7548 kfree(phba->sli4_hba.hdwq); 7549 7550 /* Release the driver assigned board number */ 7551 idr_remove(&lpfc_hba_index, phba->brd_no); 7552 7553 /* Free memory allocated with sli3 rings */ 7554 kfree(phba->sli.sli3_ring); 7555 phba->sli.sli3_ring = NULL; 7556 7557 kfree(phba); 7558 return; 7559 } 7560 7561 /** 7562 * lpfc_create_shost - Create hba physical port with associated scsi host. 7563 * @phba: pointer to lpfc hba data structure. 7564 * 7565 * This routine is invoked to create HBA physical port and associate a SCSI 7566 * host with it. 7567 * 7568 * Return codes 7569 * 0 - successful 7570 * other values - error 7571 **/ 7572 static int 7573 lpfc_create_shost(struct lpfc_hba *phba) 7574 { 7575 struct lpfc_vport *vport; 7576 struct Scsi_Host *shost; 7577 7578 /* Initialize HBA FC structure */ 7579 phba->fc_edtov = FF_DEF_EDTOV; 7580 phba->fc_ratov = FF_DEF_RATOV; 7581 phba->fc_altov = FF_DEF_ALTOV; 7582 phba->fc_arbtov = FF_DEF_ARBTOV; 7583 7584 atomic_set(&phba->sdev_cnt, 0); 7585 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 7586 if (!vport) 7587 return -ENODEV; 7588 7589 shost = lpfc_shost_from_vport(vport); 7590 phba->pport = vport; 7591 7592 if (phba->nvmet_support) { 7593 /* Only 1 vport (pport) will support NVME target */ 7594 phba->targetport = NULL; 7595 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 7596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC, 7597 "6076 NVME Target Found\n"); 7598 } 7599 7600 lpfc_debugfs_initialize(vport); 7601 /* Put reference to SCSI host to driver's device private data */ 7602 pci_set_drvdata(phba->pcidev, shost); 7603 7604 /* 7605 * At this point we are fully registered with PSA. In addition, 7606 * any initial discovery should be completed. 7607 */ 7608 vport->load_flag |= FC_ALLOW_FDMI; 7609 if (phba->cfg_enable_SmartSAN || 7610 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 7611 7612 /* Setup appropriate attribute masks */ 7613 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 7614 if (phba->cfg_enable_SmartSAN) 7615 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 7616 else 7617 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 7618 } 7619 return 0; 7620 } 7621 7622 /** 7623 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 7624 * @phba: pointer to lpfc hba data structure. 7625 * 7626 * This routine is invoked to destroy HBA physical port and the associated 7627 * SCSI host. 7628 **/ 7629 static void 7630 lpfc_destroy_shost(struct lpfc_hba *phba) 7631 { 7632 struct lpfc_vport *vport = phba->pport; 7633 7634 /* Destroy physical port that associated with the SCSI host */ 7635 destroy_port(vport); 7636 7637 return; 7638 } 7639 7640 /** 7641 * lpfc_setup_bg - Setup Block guard structures and debug areas. 7642 * @phba: pointer to lpfc hba data structure. 7643 * @shost: the shost to be used to detect Block guard settings. 7644 * 7645 * This routine sets up the local Block guard protocol settings for @shost. 7646 * This routine also allocates memory for debugging bg buffers. 7647 **/ 7648 static void 7649 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 7650 { 7651 uint32_t old_mask; 7652 uint32_t old_guard; 7653 7654 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 7655 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7656 "1478 Registering BlockGuard with the " 7657 "SCSI layer\n"); 7658 7659 old_mask = phba->cfg_prot_mask; 7660 old_guard = phba->cfg_prot_guard; 7661 7662 /* Only allow supported values */ 7663 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 7664 SHOST_DIX_TYPE0_PROTECTION | 7665 SHOST_DIX_TYPE1_PROTECTION); 7666 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 7667 SHOST_DIX_GUARD_CRC); 7668 7669 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 7670 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 7671 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 7672 7673 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 7674 if ((old_mask != phba->cfg_prot_mask) || 7675 (old_guard != phba->cfg_prot_guard)) 7676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7677 "1475 Registering BlockGuard with the " 7678 "SCSI layer: mask %d guard %d\n", 7679 phba->cfg_prot_mask, 7680 phba->cfg_prot_guard); 7681 7682 scsi_host_set_prot(shost, phba->cfg_prot_mask); 7683 scsi_host_set_guard(shost, phba->cfg_prot_guard); 7684 } else 7685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7686 "1479 Not Registering BlockGuard with the SCSI " 7687 "layer, Bad protection parameters: %d %d\n", 7688 old_mask, old_guard); 7689 } 7690 } 7691 7692 /** 7693 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7694 * @phba: pointer to lpfc hba data structure. 7695 * 7696 * This routine is invoked to perform all the necessary post initialization 7697 * setup for the device. 7698 **/ 7699 static void 7700 lpfc_post_init_setup(struct lpfc_hba *phba) 7701 { 7702 struct Scsi_Host *shost; 7703 struct lpfc_adapter_event_header adapter_event; 7704 7705 /* Get the default values for Model Name and Description */ 7706 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7707 7708 /* 7709 * hba setup may have changed the hba_queue_depth so we need to 7710 * adjust the value of can_queue. 7711 */ 7712 shost = pci_get_drvdata(phba->pcidev); 7713 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7714 7715 lpfc_host_attrib_init(shost); 7716 7717 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7718 spin_lock_irq(shost->host_lock); 7719 lpfc_poll_start_timer(phba); 7720 spin_unlock_irq(shost->host_lock); 7721 } 7722 7723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7724 "0428 Perform SCSI scan\n"); 7725 /* Send board arrival event to upper layer */ 7726 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7727 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7728 fc_host_post_vendor_event(shost, fc_get_event_number(), 7729 sizeof(adapter_event), 7730 (char *) &adapter_event, 7731 LPFC_NL_VENDOR_ID); 7732 return; 7733 } 7734 7735 /** 7736 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7737 * @phba: pointer to lpfc hba data structure. 7738 * 7739 * This routine is invoked to set up the PCI device memory space for device 7740 * with SLI-3 interface spec. 7741 * 7742 * Return codes 7743 * 0 - successful 7744 * other values - error 7745 **/ 7746 static int 7747 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7748 { 7749 struct pci_dev *pdev = phba->pcidev; 7750 unsigned long bar0map_len, bar2map_len; 7751 int i, hbq_count; 7752 void *ptr; 7753 int error; 7754 7755 if (!pdev) 7756 return -ENODEV; 7757 7758 /* Set the device DMA mask size */ 7759 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 7760 if (error) 7761 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 7762 if (error) 7763 return error; 7764 error = -ENODEV; 7765 7766 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7767 * required by each mapping. 7768 */ 7769 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7770 bar0map_len = pci_resource_len(pdev, 0); 7771 7772 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7773 bar2map_len = pci_resource_len(pdev, 2); 7774 7775 /* Map HBA SLIM to a kernel virtual address. */ 7776 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7777 if (!phba->slim_memmap_p) { 7778 dev_printk(KERN_ERR, &pdev->dev, 7779 "ioremap failed for SLIM memory.\n"); 7780 goto out; 7781 } 7782 7783 /* Map HBA Control Registers to a kernel virtual address. */ 7784 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7785 if (!phba->ctrl_regs_memmap_p) { 7786 dev_printk(KERN_ERR, &pdev->dev, 7787 "ioremap failed for HBA control registers.\n"); 7788 goto out_iounmap_slim; 7789 } 7790 7791 /* Allocate memory for SLI-2 structures */ 7792 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7793 &phba->slim2p.phys, GFP_KERNEL); 7794 if (!phba->slim2p.virt) 7795 goto out_iounmap; 7796 7797 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7798 phba->mbox_ext = (phba->slim2p.virt + 7799 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7800 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7801 phba->IOCBs = (phba->slim2p.virt + 7802 offsetof(struct lpfc_sli2_slim, IOCBs)); 7803 7804 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7805 lpfc_sli_hbq_size(), 7806 &phba->hbqslimp.phys, 7807 GFP_KERNEL); 7808 if (!phba->hbqslimp.virt) 7809 goto out_free_slim; 7810 7811 hbq_count = lpfc_sli_hbq_count(); 7812 ptr = phba->hbqslimp.virt; 7813 for (i = 0; i < hbq_count; ++i) { 7814 phba->hbqs[i].hbq_virt = ptr; 7815 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7816 ptr += (lpfc_hbq_defs[i]->entry_count * 7817 sizeof(struct lpfc_hbq_entry)); 7818 } 7819 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7820 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7821 7822 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7823 7824 phba->MBslimaddr = phba->slim_memmap_p; 7825 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7826 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7827 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7828 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7829 7830 return 0; 7831 7832 out_free_slim: 7833 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7834 phba->slim2p.virt, phba->slim2p.phys); 7835 out_iounmap: 7836 iounmap(phba->ctrl_regs_memmap_p); 7837 out_iounmap_slim: 7838 iounmap(phba->slim_memmap_p); 7839 out: 7840 return error; 7841 } 7842 7843 /** 7844 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7845 * @phba: pointer to lpfc hba data structure. 7846 * 7847 * This routine is invoked to unset the PCI device memory space for device 7848 * with SLI-3 interface spec. 7849 **/ 7850 static void 7851 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7852 { 7853 struct pci_dev *pdev; 7854 7855 /* Obtain PCI device reference */ 7856 if (!phba->pcidev) 7857 return; 7858 else 7859 pdev = phba->pcidev; 7860 7861 /* Free coherent DMA memory allocated */ 7862 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7863 phba->hbqslimp.virt, phba->hbqslimp.phys); 7864 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7865 phba->slim2p.virt, phba->slim2p.phys); 7866 7867 /* I/O memory unmap */ 7868 iounmap(phba->ctrl_regs_memmap_p); 7869 iounmap(phba->slim_memmap_p); 7870 7871 return; 7872 } 7873 7874 /** 7875 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7876 * @phba: pointer to lpfc hba data structure. 7877 * 7878 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7879 * done and check status. 7880 * 7881 * Return 0 if successful, otherwise -ENODEV. 7882 **/ 7883 int 7884 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7885 { 7886 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7887 struct lpfc_register reg_data; 7888 int i, port_error = 0; 7889 uint32_t if_type; 7890 7891 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7892 memset(®_data, 0, sizeof(reg_data)); 7893 if (!phba->sli4_hba.PSMPHRregaddr) 7894 return -ENODEV; 7895 7896 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7897 for (i = 0; i < 3000; i++) { 7898 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7899 &portsmphr_reg.word0) || 7900 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7901 /* Port has a fatal POST error, break out */ 7902 port_error = -ENODEV; 7903 break; 7904 } 7905 if (LPFC_POST_STAGE_PORT_READY == 7906 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7907 break; 7908 msleep(10); 7909 } 7910 7911 /* 7912 * If there was a port error during POST, then don't proceed with 7913 * other register reads as the data may not be valid. Just exit. 7914 */ 7915 if (port_error) { 7916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7917 "1408 Port Failed POST - portsmphr=0x%x, " 7918 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7919 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7920 portsmphr_reg.word0, 7921 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7922 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7923 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7924 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7925 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7926 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7927 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7928 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7929 } else { 7930 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7931 "2534 Device Info: SLIFamily=0x%x, " 7932 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7933 "SLIHint_2=0x%x, FT=0x%x\n", 7934 bf_get(lpfc_sli_intf_sli_family, 7935 &phba->sli4_hba.sli_intf), 7936 bf_get(lpfc_sli_intf_slirev, 7937 &phba->sli4_hba.sli_intf), 7938 bf_get(lpfc_sli_intf_if_type, 7939 &phba->sli4_hba.sli_intf), 7940 bf_get(lpfc_sli_intf_sli_hint1, 7941 &phba->sli4_hba.sli_intf), 7942 bf_get(lpfc_sli_intf_sli_hint2, 7943 &phba->sli4_hba.sli_intf), 7944 bf_get(lpfc_sli_intf_func_type, 7945 &phba->sli4_hba.sli_intf)); 7946 /* 7947 * Check for other Port errors during the initialization 7948 * process. Fail the load if the port did not come up 7949 * correctly. 7950 */ 7951 if_type = bf_get(lpfc_sli_intf_if_type, 7952 &phba->sli4_hba.sli_intf); 7953 switch (if_type) { 7954 case LPFC_SLI_INTF_IF_TYPE_0: 7955 phba->sli4_hba.ue_mask_lo = 7956 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7957 phba->sli4_hba.ue_mask_hi = 7958 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7959 uerrlo_reg.word0 = 7960 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7961 uerrhi_reg.word0 = 7962 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7963 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7964 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7966 "1422 Unrecoverable Error " 7967 "Detected during POST " 7968 "uerr_lo_reg=0x%x, " 7969 "uerr_hi_reg=0x%x, " 7970 "ue_mask_lo_reg=0x%x, " 7971 "ue_mask_hi_reg=0x%x\n", 7972 uerrlo_reg.word0, 7973 uerrhi_reg.word0, 7974 phba->sli4_hba.ue_mask_lo, 7975 phba->sli4_hba.ue_mask_hi); 7976 port_error = -ENODEV; 7977 } 7978 break; 7979 case LPFC_SLI_INTF_IF_TYPE_2: 7980 case LPFC_SLI_INTF_IF_TYPE_6: 7981 /* Final checks. The port status should be clean. */ 7982 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7983 ®_data.word0) || 7984 (bf_get(lpfc_sliport_status_err, ®_data) && 7985 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7986 phba->work_status[0] = 7987 readl(phba->sli4_hba.u.if_type2. 7988 ERR1regaddr); 7989 phba->work_status[1] = 7990 readl(phba->sli4_hba.u.if_type2. 7991 ERR2regaddr); 7992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7993 "2888 Unrecoverable port error " 7994 "following POST: port status reg " 7995 "0x%x, port_smphr reg 0x%x, " 7996 "error 1=0x%x, error 2=0x%x\n", 7997 reg_data.word0, 7998 portsmphr_reg.word0, 7999 phba->work_status[0], 8000 phba->work_status[1]); 8001 port_error = -ENODEV; 8002 } 8003 break; 8004 case LPFC_SLI_INTF_IF_TYPE_1: 8005 default: 8006 break; 8007 } 8008 } 8009 return port_error; 8010 } 8011 8012 /** 8013 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 8014 * @phba: pointer to lpfc hba data structure. 8015 * @if_type: The SLI4 interface type getting configured. 8016 * 8017 * This routine is invoked to set up SLI4 BAR0 PCI config space register 8018 * memory map. 8019 **/ 8020 static void 8021 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 8022 { 8023 switch (if_type) { 8024 case LPFC_SLI_INTF_IF_TYPE_0: 8025 phba->sli4_hba.u.if_type0.UERRLOregaddr = 8026 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 8027 phba->sli4_hba.u.if_type0.UERRHIregaddr = 8028 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 8029 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 8030 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 8031 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 8032 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 8033 phba->sli4_hba.SLIINTFregaddr = 8034 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 8035 break; 8036 case LPFC_SLI_INTF_IF_TYPE_2: 8037 phba->sli4_hba.u.if_type2.EQDregaddr = 8038 phba->sli4_hba.conf_regs_memmap_p + 8039 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 8040 phba->sli4_hba.u.if_type2.ERR1regaddr = 8041 phba->sli4_hba.conf_regs_memmap_p + 8042 LPFC_CTL_PORT_ER1_OFFSET; 8043 phba->sli4_hba.u.if_type2.ERR2regaddr = 8044 phba->sli4_hba.conf_regs_memmap_p + 8045 LPFC_CTL_PORT_ER2_OFFSET; 8046 phba->sli4_hba.u.if_type2.CTRLregaddr = 8047 phba->sli4_hba.conf_regs_memmap_p + 8048 LPFC_CTL_PORT_CTL_OFFSET; 8049 phba->sli4_hba.u.if_type2.STATUSregaddr = 8050 phba->sli4_hba.conf_regs_memmap_p + 8051 LPFC_CTL_PORT_STA_OFFSET; 8052 phba->sli4_hba.SLIINTFregaddr = 8053 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 8054 phba->sli4_hba.PSMPHRregaddr = 8055 phba->sli4_hba.conf_regs_memmap_p + 8056 LPFC_CTL_PORT_SEM_OFFSET; 8057 phba->sli4_hba.RQDBregaddr = 8058 phba->sli4_hba.conf_regs_memmap_p + 8059 LPFC_ULP0_RQ_DOORBELL; 8060 phba->sli4_hba.WQDBregaddr = 8061 phba->sli4_hba.conf_regs_memmap_p + 8062 LPFC_ULP0_WQ_DOORBELL; 8063 phba->sli4_hba.CQDBregaddr = 8064 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 8065 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 8066 phba->sli4_hba.MQDBregaddr = 8067 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 8068 phba->sli4_hba.BMBXregaddr = 8069 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 8070 break; 8071 case LPFC_SLI_INTF_IF_TYPE_6: 8072 phba->sli4_hba.u.if_type2.EQDregaddr = 8073 phba->sli4_hba.conf_regs_memmap_p + 8074 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 8075 phba->sli4_hba.u.if_type2.ERR1regaddr = 8076 phba->sli4_hba.conf_regs_memmap_p + 8077 LPFC_CTL_PORT_ER1_OFFSET; 8078 phba->sli4_hba.u.if_type2.ERR2regaddr = 8079 phba->sli4_hba.conf_regs_memmap_p + 8080 LPFC_CTL_PORT_ER2_OFFSET; 8081 phba->sli4_hba.u.if_type2.CTRLregaddr = 8082 phba->sli4_hba.conf_regs_memmap_p + 8083 LPFC_CTL_PORT_CTL_OFFSET; 8084 phba->sli4_hba.u.if_type2.STATUSregaddr = 8085 phba->sli4_hba.conf_regs_memmap_p + 8086 LPFC_CTL_PORT_STA_OFFSET; 8087 phba->sli4_hba.PSMPHRregaddr = 8088 phba->sli4_hba.conf_regs_memmap_p + 8089 LPFC_CTL_PORT_SEM_OFFSET; 8090 phba->sli4_hba.BMBXregaddr = 8091 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 8092 break; 8093 case LPFC_SLI_INTF_IF_TYPE_1: 8094 default: 8095 dev_printk(KERN_ERR, &phba->pcidev->dev, 8096 "FATAL - unsupported SLI4 interface type - %d\n", 8097 if_type); 8098 break; 8099 } 8100 } 8101 8102 /** 8103 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 8104 * @phba: pointer to lpfc hba data structure. 8105 * 8106 * This routine is invoked to set up SLI4 BAR1 register memory map. 8107 **/ 8108 static void 8109 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 8110 { 8111 switch (if_type) { 8112 case LPFC_SLI_INTF_IF_TYPE_0: 8113 phba->sli4_hba.PSMPHRregaddr = 8114 phba->sli4_hba.ctrl_regs_memmap_p + 8115 LPFC_SLIPORT_IF0_SMPHR; 8116 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 8117 LPFC_HST_ISR0; 8118 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 8119 LPFC_HST_IMR0; 8120 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 8121 LPFC_HST_ISCR0; 8122 break; 8123 case LPFC_SLI_INTF_IF_TYPE_6: 8124 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 8125 LPFC_IF6_RQ_DOORBELL; 8126 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 8127 LPFC_IF6_WQ_DOORBELL; 8128 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 8129 LPFC_IF6_CQ_DOORBELL; 8130 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 8131 LPFC_IF6_EQ_DOORBELL; 8132 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 8133 LPFC_IF6_MQ_DOORBELL; 8134 break; 8135 case LPFC_SLI_INTF_IF_TYPE_2: 8136 case LPFC_SLI_INTF_IF_TYPE_1: 8137 default: 8138 dev_err(&phba->pcidev->dev, 8139 "FATAL - unsupported SLI4 interface type - %d\n", 8140 if_type); 8141 break; 8142 } 8143 } 8144 8145 /** 8146 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 8147 * @phba: pointer to lpfc hba data structure. 8148 * @vf: virtual function number 8149 * 8150 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 8151 * based on the given viftual function number, @vf. 8152 * 8153 * Return 0 if successful, otherwise -ENODEV. 8154 **/ 8155 static int 8156 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 8157 { 8158 if (vf > LPFC_VIR_FUNC_MAX) 8159 return -ENODEV; 8160 8161 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 8162 vf * LPFC_VFR_PAGE_SIZE + 8163 LPFC_ULP0_RQ_DOORBELL); 8164 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 8165 vf * LPFC_VFR_PAGE_SIZE + 8166 LPFC_ULP0_WQ_DOORBELL); 8167 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 8168 vf * LPFC_VFR_PAGE_SIZE + 8169 LPFC_EQCQ_DOORBELL); 8170 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 8171 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 8172 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 8173 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 8174 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 8175 return 0; 8176 } 8177 8178 /** 8179 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 8180 * @phba: pointer to lpfc hba data structure. 8181 * 8182 * This routine is invoked to create the bootstrap mailbox 8183 * region consistent with the SLI-4 interface spec. This 8184 * routine allocates all memory necessary to communicate 8185 * mailbox commands to the port and sets up all alignment 8186 * needs. No locks are expected to be held when calling 8187 * this routine. 8188 * 8189 * Return codes 8190 * 0 - successful 8191 * -ENOMEM - could not allocated memory. 8192 **/ 8193 static int 8194 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 8195 { 8196 uint32_t bmbx_size; 8197 struct lpfc_dmabuf *dmabuf; 8198 struct dma_address *dma_address; 8199 uint32_t pa_addr; 8200 uint64_t phys_addr; 8201 8202 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 8203 if (!dmabuf) 8204 return -ENOMEM; 8205 8206 /* 8207 * The bootstrap mailbox region is comprised of 2 parts 8208 * plus an alignment restriction of 16 bytes. 8209 */ 8210 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 8211 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size, 8212 &dmabuf->phys, GFP_KERNEL); 8213 if (!dmabuf->virt) { 8214 kfree(dmabuf); 8215 return -ENOMEM; 8216 } 8217 8218 /* 8219 * Initialize the bootstrap mailbox pointers now so that the register 8220 * operations are simple later. The mailbox dma address is required 8221 * to be 16-byte aligned. Also align the virtual memory as each 8222 * maibox is copied into the bmbx mailbox region before issuing the 8223 * command to the port. 8224 */ 8225 phba->sli4_hba.bmbx.dmabuf = dmabuf; 8226 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 8227 8228 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 8229 LPFC_ALIGN_16_BYTE); 8230 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 8231 LPFC_ALIGN_16_BYTE); 8232 8233 /* 8234 * Set the high and low physical addresses now. The SLI4 alignment 8235 * requirement is 16 bytes and the mailbox is posted to the port 8236 * as two 30-bit addresses. The other data is a bit marking whether 8237 * the 30-bit address is the high or low address. 8238 * Upcast bmbx aphys to 64bits so shift instruction compiles 8239 * clean on 32 bit machines. 8240 */ 8241 dma_address = &phba->sli4_hba.bmbx.dma_address; 8242 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 8243 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 8244 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 8245 LPFC_BMBX_BIT1_ADDR_HI); 8246 8247 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 8248 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 8249 LPFC_BMBX_BIT1_ADDR_LO); 8250 return 0; 8251 } 8252 8253 /** 8254 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 8255 * @phba: pointer to lpfc hba data structure. 8256 * 8257 * This routine is invoked to teardown the bootstrap mailbox 8258 * region and release all host resources. This routine requires 8259 * the caller to ensure all mailbox commands recovered, no 8260 * additional mailbox comands are sent, and interrupts are disabled 8261 * before calling this routine. 8262 * 8263 **/ 8264 static void 8265 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 8266 { 8267 dma_free_coherent(&phba->pcidev->dev, 8268 phba->sli4_hba.bmbx.bmbx_size, 8269 phba->sli4_hba.bmbx.dmabuf->virt, 8270 phba->sli4_hba.bmbx.dmabuf->phys); 8271 8272 kfree(phba->sli4_hba.bmbx.dmabuf); 8273 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 8274 } 8275 8276 static const char * const lpfc_topo_to_str[] = { 8277 "Loop then P2P", 8278 "Loopback", 8279 "P2P Only", 8280 "Unsupported", 8281 "Loop Only", 8282 "Unsupported", 8283 "P2P then Loop", 8284 }; 8285 8286 /** 8287 * lpfc_map_topology - Map the topology read from READ_CONFIG 8288 * @phba: pointer to lpfc hba data structure. 8289 * @rdconf: pointer to read config data 8290 * 8291 * This routine is invoked to map the topology values as read 8292 * from the read config mailbox command. If the persistent 8293 * topology feature is supported, the firmware will provide the 8294 * saved topology information to be used in INIT_LINK 8295 * 8296 **/ 8297 #define LINK_FLAGS_DEF 0x0 8298 #define LINK_FLAGS_P2P 0x1 8299 #define LINK_FLAGS_LOOP 0x2 8300 static void 8301 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config) 8302 { 8303 u8 ptv, tf, pt; 8304 8305 ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config); 8306 tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config); 8307 pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config); 8308 8309 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8310 "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x", 8311 ptv, tf, pt); 8312 if (!ptv) { 8313 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 8314 "2019 FW does not support persistent topology " 8315 "Using driver parameter defined value [%s]", 8316 lpfc_topo_to_str[phba->cfg_topology]); 8317 return; 8318 } 8319 /* FW supports persistent topology - override module parameter value */ 8320 phba->hba_flag |= HBA_PERSISTENT_TOPO; 8321 switch (phba->pcidev->device) { 8322 case PCI_DEVICE_ID_LANCER_G7_FC: 8323 case PCI_DEVICE_ID_LANCER_G6_FC: 8324 if (!tf) { 8325 phba->cfg_topology = ((pt == LINK_FLAGS_LOOP) 8326 ? FLAGS_TOPOLOGY_MODE_LOOP 8327 : FLAGS_TOPOLOGY_MODE_PT_PT); 8328 } else { 8329 phba->hba_flag &= ~HBA_PERSISTENT_TOPO; 8330 } 8331 break; 8332 default: /* G5 */ 8333 if (tf) { 8334 /* If topology failover set - pt is '0' or '1' */ 8335 phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP : 8336 FLAGS_TOPOLOGY_MODE_LOOP_PT); 8337 } else { 8338 phba->cfg_topology = ((pt == LINK_FLAGS_P2P) 8339 ? FLAGS_TOPOLOGY_MODE_PT_PT 8340 : FLAGS_TOPOLOGY_MODE_LOOP); 8341 } 8342 break; 8343 } 8344 if (phba->hba_flag & HBA_PERSISTENT_TOPO) { 8345 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8346 "2020 Using persistent topology value [%s]", 8347 lpfc_topo_to_str[phba->cfg_topology]); 8348 } else { 8349 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 8350 "2021 Invalid topology values from FW " 8351 "Using driver parameter defined value [%s]", 8352 lpfc_topo_to_str[phba->cfg_topology]); 8353 } 8354 } 8355 8356 /** 8357 * lpfc_sli4_read_config - Get the config parameters. 8358 * @phba: pointer to lpfc hba data structure. 8359 * 8360 * This routine is invoked to read the configuration parameters from the HBA. 8361 * The configuration parameters are used to set the base and maximum values 8362 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 8363 * allocation for the port. 8364 * 8365 * Return codes 8366 * 0 - successful 8367 * -ENOMEM - No available memory 8368 * -EIO - The mailbox failed to complete successfully. 8369 **/ 8370 int 8371 lpfc_sli4_read_config(struct lpfc_hba *phba) 8372 { 8373 LPFC_MBOXQ_t *pmb; 8374 struct lpfc_mbx_read_config *rd_config; 8375 union lpfc_sli4_cfg_shdr *shdr; 8376 uint32_t shdr_status, shdr_add_status; 8377 struct lpfc_mbx_get_func_cfg *get_func_cfg; 8378 struct lpfc_rsrc_desc_fcfcoe *desc; 8379 char *pdesc_0; 8380 uint16_t forced_link_speed; 8381 uint32_t if_type, qmin; 8382 int length, i, rc = 0, rc2; 8383 8384 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8385 if (!pmb) { 8386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8387 "2011 Unable to allocate memory for issuing " 8388 "SLI_CONFIG_SPECIAL mailbox command\n"); 8389 return -ENOMEM; 8390 } 8391 8392 lpfc_read_config(phba, pmb); 8393 8394 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8395 if (rc != MBX_SUCCESS) { 8396 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8397 "2012 Mailbox failed , mbxCmd x%x " 8398 "READ_CONFIG, mbxStatus x%x\n", 8399 bf_get(lpfc_mqe_command, &pmb->u.mqe), 8400 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 8401 rc = -EIO; 8402 } else { 8403 rd_config = &pmb->u.mqe.un.rd_config; 8404 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 8405 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 8406 phba->sli4_hba.lnk_info.lnk_tp = 8407 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 8408 phba->sli4_hba.lnk_info.lnk_no = 8409 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 8410 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8411 "3081 lnk_type:%d, lnk_numb:%d\n", 8412 phba->sli4_hba.lnk_info.lnk_tp, 8413 phba->sli4_hba.lnk_info.lnk_no); 8414 } else 8415 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 8416 "3082 Mailbox (x%x) returned ldv:x0\n", 8417 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 8418 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 8419 phba->bbcredit_support = 1; 8420 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 8421 } 8422 8423 phba->sli4_hba.conf_trunk = 8424 bf_get(lpfc_mbx_rd_conf_trunk, rd_config); 8425 phba->sli4_hba.extents_in_use = 8426 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 8427 phba->sli4_hba.max_cfg_param.max_xri = 8428 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 8429 /* Reduce resource usage in kdump environment */ 8430 if (is_kdump_kernel() && 8431 phba->sli4_hba.max_cfg_param.max_xri > 512) 8432 phba->sli4_hba.max_cfg_param.max_xri = 512; 8433 phba->sli4_hba.max_cfg_param.xri_base = 8434 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 8435 phba->sli4_hba.max_cfg_param.max_vpi = 8436 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 8437 /* Limit the max we support */ 8438 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS) 8439 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS; 8440 phba->sli4_hba.max_cfg_param.vpi_base = 8441 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 8442 phba->sli4_hba.max_cfg_param.max_rpi = 8443 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 8444 phba->sli4_hba.max_cfg_param.rpi_base = 8445 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 8446 phba->sli4_hba.max_cfg_param.max_vfi = 8447 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 8448 phba->sli4_hba.max_cfg_param.vfi_base = 8449 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 8450 phba->sli4_hba.max_cfg_param.max_fcfi = 8451 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 8452 phba->sli4_hba.max_cfg_param.max_eq = 8453 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 8454 phba->sli4_hba.max_cfg_param.max_rq = 8455 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 8456 phba->sli4_hba.max_cfg_param.max_wq = 8457 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 8458 phba->sli4_hba.max_cfg_param.max_cq = 8459 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 8460 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 8461 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 8462 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 8463 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 8464 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 8465 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 8466 phba->max_vports = phba->max_vpi; 8467 lpfc_map_topology(phba, rd_config); 8468 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8469 "2003 cfg params Extents? %d " 8470 "XRI(B:%d M:%d), " 8471 "VPI(B:%d M:%d) " 8472 "VFI(B:%d M:%d) " 8473 "RPI(B:%d M:%d) " 8474 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 8475 phba->sli4_hba.extents_in_use, 8476 phba->sli4_hba.max_cfg_param.xri_base, 8477 phba->sli4_hba.max_cfg_param.max_xri, 8478 phba->sli4_hba.max_cfg_param.vpi_base, 8479 phba->sli4_hba.max_cfg_param.max_vpi, 8480 phba->sli4_hba.max_cfg_param.vfi_base, 8481 phba->sli4_hba.max_cfg_param.max_vfi, 8482 phba->sli4_hba.max_cfg_param.rpi_base, 8483 phba->sli4_hba.max_cfg_param.max_rpi, 8484 phba->sli4_hba.max_cfg_param.max_fcfi, 8485 phba->sli4_hba.max_cfg_param.max_eq, 8486 phba->sli4_hba.max_cfg_param.max_cq, 8487 phba->sli4_hba.max_cfg_param.max_wq, 8488 phba->sli4_hba.max_cfg_param.max_rq); 8489 8490 /* 8491 * Calculate queue resources based on how 8492 * many WQ/CQ/EQs are available. 8493 */ 8494 qmin = phba->sli4_hba.max_cfg_param.max_wq; 8495 if (phba->sli4_hba.max_cfg_param.max_cq < qmin) 8496 qmin = phba->sli4_hba.max_cfg_param.max_cq; 8497 if (phba->sli4_hba.max_cfg_param.max_eq < qmin) 8498 qmin = phba->sli4_hba.max_cfg_param.max_eq; 8499 /* 8500 * Whats left after this can go toward NVME / FCP. 8501 * The minus 4 accounts for ELS, NVME LS, MBOX 8502 * plus one extra. When configured for 8503 * NVMET, FCP io channel WQs are not created. 8504 */ 8505 qmin -= 4; 8506 8507 /* Check to see if there is enough for NVME */ 8508 if ((phba->cfg_irq_chann > qmin) || 8509 (phba->cfg_hdw_queue > qmin)) { 8510 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8511 "2005 Reducing Queues: " 8512 "WQ %d CQ %d EQ %d: min %d: " 8513 "IRQ %d HDWQ %d\n", 8514 phba->sli4_hba.max_cfg_param.max_wq, 8515 phba->sli4_hba.max_cfg_param.max_cq, 8516 phba->sli4_hba.max_cfg_param.max_eq, 8517 qmin, phba->cfg_irq_chann, 8518 phba->cfg_hdw_queue); 8519 8520 if (phba->cfg_irq_chann > qmin) 8521 phba->cfg_irq_chann = qmin; 8522 if (phba->cfg_hdw_queue > qmin) 8523 phba->cfg_hdw_queue = qmin; 8524 } 8525 } 8526 8527 if (rc) 8528 goto read_cfg_out; 8529 8530 /* Update link speed if forced link speed is supported */ 8531 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8532 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 8533 forced_link_speed = 8534 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 8535 if (forced_link_speed) { 8536 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 8537 8538 switch (forced_link_speed) { 8539 case LINK_SPEED_1G: 8540 phba->cfg_link_speed = 8541 LPFC_USER_LINK_SPEED_1G; 8542 break; 8543 case LINK_SPEED_2G: 8544 phba->cfg_link_speed = 8545 LPFC_USER_LINK_SPEED_2G; 8546 break; 8547 case LINK_SPEED_4G: 8548 phba->cfg_link_speed = 8549 LPFC_USER_LINK_SPEED_4G; 8550 break; 8551 case LINK_SPEED_8G: 8552 phba->cfg_link_speed = 8553 LPFC_USER_LINK_SPEED_8G; 8554 break; 8555 case LINK_SPEED_10G: 8556 phba->cfg_link_speed = 8557 LPFC_USER_LINK_SPEED_10G; 8558 break; 8559 case LINK_SPEED_16G: 8560 phba->cfg_link_speed = 8561 LPFC_USER_LINK_SPEED_16G; 8562 break; 8563 case LINK_SPEED_32G: 8564 phba->cfg_link_speed = 8565 LPFC_USER_LINK_SPEED_32G; 8566 break; 8567 case LINK_SPEED_64G: 8568 phba->cfg_link_speed = 8569 LPFC_USER_LINK_SPEED_64G; 8570 break; 8571 case 0xffff: 8572 phba->cfg_link_speed = 8573 LPFC_USER_LINK_SPEED_AUTO; 8574 break; 8575 default: 8576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8577 "0047 Unrecognized link " 8578 "speed : %d\n", 8579 forced_link_speed); 8580 phba->cfg_link_speed = 8581 LPFC_USER_LINK_SPEED_AUTO; 8582 } 8583 } 8584 } 8585 8586 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 8587 length = phba->sli4_hba.max_cfg_param.max_xri - 8588 lpfc_sli4_get_els_iocb_cnt(phba); 8589 if (phba->cfg_hba_queue_depth > length) { 8590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8591 "3361 HBA queue depth changed from %d to %d\n", 8592 phba->cfg_hba_queue_depth, length); 8593 phba->cfg_hba_queue_depth = length; 8594 } 8595 8596 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 8597 LPFC_SLI_INTF_IF_TYPE_2) 8598 goto read_cfg_out; 8599 8600 /* get the pf# and vf# for SLI4 if_type 2 port */ 8601 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 8602 sizeof(struct lpfc_sli4_cfg_mhdr)); 8603 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 8604 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 8605 length, LPFC_SLI4_MBX_EMBED); 8606 8607 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8608 shdr = (union lpfc_sli4_cfg_shdr *) 8609 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 8610 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8611 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8612 if (rc2 || shdr_status || shdr_add_status) { 8613 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8614 "3026 Mailbox failed , mbxCmd x%x " 8615 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 8616 bf_get(lpfc_mqe_command, &pmb->u.mqe), 8617 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 8618 goto read_cfg_out; 8619 } 8620 8621 /* search for fc_fcoe resrouce descriptor */ 8622 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 8623 8624 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 8625 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 8626 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 8627 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 8628 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 8629 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 8630 goto read_cfg_out; 8631 8632 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 8633 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 8634 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 8635 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 8636 phba->sli4_hba.iov.pf_number = 8637 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 8638 phba->sli4_hba.iov.vf_number = 8639 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 8640 break; 8641 } 8642 } 8643 8644 if (i < LPFC_RSRC_DESC_MAX_NUM) 8645 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8646 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 8647 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 8648 phba->sli4_hba.iov.vf_number); 8649 else 8650 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8651 "3028 GET_FUNCTION_CONFIG: failed to find " 8652 "Resource Descriptor:x%x\n", 8653 LPFC_RSRC_DESC_TYPE_FCFCOE); 8654 8655 read_cfg_out: 8656 mempool_free(pmb, phba->mbox_mem_pool); 8657 return rc; 8658 } 8659 8660 /** 8661 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 8662 * @phba: pointer to lpfc hba data structure. 8663 * 8664 * This routine is invoked to setup the port-side endian order when 8665 * the port if_type is 0. This routine has no function for other 8666 * if_types. 8667 * 8668 * Return codes 8669 * 0 - successful 8670 * -ENOMEM - No available memory 8671 * -EIO - The mailbox failed to complete successfully. 8672 **/ 8673 static int 8674 lpfc_setup_endian_order(struct lpfc_hba *phba) 8675 { 8676 LPFC_MBOXQ_t *mboxq; 8677 uint32_t if_type, rc = 0; 8678 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 8679 HOST_ENDIAN_HIGH_WORD1}; 8680 8681 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8682 switch (if_type) { 8683 case LPFC_SLI_INTF_IF_TYPE_0: 8684 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 8685 GFP_KERNEL); 8686 if (!mboxq) { 8687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8688 "0492 Unable to allocate memory for " 8689 "issuing SLI_CONFIG_SPECIAL mailbox " 8690 "command\n"); 8691 return -ENOMEM; 8692 } 8693 8694 /* 8695 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 8696 * two words to contain special data values and no other data. 8697 */ 8698 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 8699 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 8700 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8701 if (rc != MBX_SUCCESS) { 8702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8703 "0493 SLI_CONFIG_SPECIAL mailbox " 8704 "failed with status x%x\n", 8705 rc); 8706 rc = -EIO; 8707 } 8708 mempool_free(mboxq, phba->mbox_mem_pool); 8709 break; 8710 case LPFC_SLI_INTF_IF_TYPE_6: 8711 case LPFC_SLI_INTF_IF_TYPE_2: 8712 case LPFC_SLI_INTF_IF_TYPE_1: 8713 default: 8714 break; 8715 } 8716 return rc; 8717 } 8718 8719 /** 8720 * lpfc_sli4_queue_verify - Verify and update EQ counts 8721 * @phba: pointer to lpfc hba data structure. 8722 * 8723 * This routine is invoked to check the user settable queue counts for EQs. 8724 * After this routine is called the counts will be set to valid values that 8725 * adhere to the constraints of the system's interrupt vectors and the port's 8726 * queue resources. 8727 * 8728 * Return codes 8729 * 0 - successful 8730 * -ENOMEM - No available memory 8731 **/ 8732 static int 8733 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 8734 { 8735 /* 8736 * Sanity check for configured queue parameters against the run-time 8737 * device parameters 8738 */ 8739 8740 if (phba->nvmet_support) { 8741 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq) 8742 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 8743 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 8744 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 8745 } 8746 8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8748 "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n", 8749 phba->cfg_hdw_queue, phba->cfg_irq_chann, 8750 phba->cfg_nvmet_mrq); 8751 8752 /* Get EQ depth from module parameter, fake the default for now */ 8753 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8754 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8755 8756 /* Get CQ depth from module parameter, fake the default for now */ 8757 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8758 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8759 return 0; 8760 } 8761 8762 static int 8763 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx) 8764 { 8765 struct lpfc_queue *qdesc; 8766 u32 wqesize; 8767 int cpu; 8768 8769 cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ); 8770 /* Create Fast Path IO CQs */ 8771 if (phba->enab_exp_wqcq_pages) 8772 /* Increase the CQ size when WQEs contain an embedded cdb */ 8773 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8774 phba->sli4_hba.cq_esize, 8775 LPFC_CQE_EXP_COUNT, cpu); 8776 8777 else 8778 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8779 phba->sli4_hba.cq_esize, 8780 phba->sli4_hba.cq_ecount, cpu); 8781 if (!qdesc) { 8782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8783 "0499 Failed allocate fast-path IO CQ (%d)\n", idx); 8784 return 1; 8785 } 8786 qdesc->qe_valid = 1; 8787 qdesc->hdwq = idx; 8788 qdesc->chann = cpu; 8789 phba->sli4_hba.hdwq[idx].io_cq = qdesc; 8790 8791 /* Create Fast Path IO WQs */ 8792 if (phba->enab_exp_wqcq_pages) { 8793 /* Increase the WQ size when WQEs contain an embedded cdb */ 8794 wqesize = (phba->fcp_embed_io) ? 8795 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 8796 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8797 wqesize, 8798 LPFC_WQE_EXP_COUNT, cpu); 8799 } else 8800 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8801 phba->sli4_hba.wq_esize, 8802 phba->sli4_hba.wq_ecount, cpu); 8803 8804 if (!qdesc) { 8805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8806 "0503 Failed allocate fast-path IO WQ (%d)\n", 8807 idx); 8808 return 1; 8809 } 8810 qdesc->hdwq = idx; 8811 qdesc->chann = cpu; 8812 phba->sli4_hba.hdwq[idx].io_wq = qdesc; 8813 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8814 return 0; 8815 } 8816 8817 /** 8818 * lpfc_sli4_queue_create - Create all the SLI4 queues 8819 * @phba: pointer to lpfc hba data structure. 8820 * 8821 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8822 * operation. For each SLI4 queue type, the parameters such as queue entry 8823 * count (queue depth) shall be taken from the module parameter. For now, 8824 * we just use some constant number as place holder. 8825 * 8826 * Return codes 8827 * 0 - successful 8828 * -ENOMEM - No availble memory 8829 * -EIO - The mailbox failed to complete successfully. 8830 **/ 8831 int 8832 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8833 { 8834 struct lpfc_queue *qdesc; 8835 int idx, cpu, eqcpu; 8836 struct lpfc_sli4_hdw_queue *qp; 8837 struct lpfc_vector_map_info *cpup; 8838 struct lpfc_vector_map_info *eqcpup; 8839 struct lpfc_eq_intr_info *eqi; 8840 8841 /* 8842 * Create HBA Record arrays. 8843 * Both NVME and FCP will share that same vectors / EQs 8844 */ 8845 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8846 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8847 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8848 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8849 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8850 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8851 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8852 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8853 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8854 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8855 8856 if (!phba->sli4_hba.hdwq) { 8857 phba->sli4_hba.hdwq = kcalloc( 8858 phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue), 8859 GFP_KERNEL); 8860 if (!phba->sli4_hba.hdwq) { 8861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8862 "6427 Failed allocate memory for " 8863 "fast-path Hardware Queue array\n"); 8864 goto out_error; 8865 } 8866 /* Prepare hardware queues to take IO buffers */ 8867 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 8868 qp = &phba->sli4_hba.hdwq[idx]; 8869 spin_lock_init(&qp->io_buf_list_get_lock); 8870 spin_lock_init(&qp->io_buf_list_put_lock); 8871 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get); 8872 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put); 8873 qp->get_io_bufs = 0; 8874 qp->put_io_bufs = 0; 8875 qp->total_io_bufs = 0; 8876 spin_lock_init(&qp->abts_io_buf_list_lock); 8877 INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list); 8878 qp->abts_scsi_io_bufs = 0; 8879 qp->abts_nvme_io_bufs = 0; 8880 INIT_LIST_HEAD(&qp->sgl_list); 8881 INIT_LIST_HEAD(&qp->cmd_rsp_buf_list); 8882 spin_lock_init(&qp->hdwq_lock); 8883 } 8884 } 8885 8886 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8887 if (phba->nvmet_support) { 8888 phba->sli4_hba.nvmet_cqset = kcalloc( 8889 phba->cfg_nvmet_mrq, 8890 sizeof(struct lpfc_queue *), 8891 GFP_KERNEL); 8892 if (!phba->sli4_hba.nvmet_cqset) { 8893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8894 "3121 Fail allocate memory for " 8895 "fast-path CQ set array\n"); 8896 goto out_error; 8897 } 8898 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8899 phba->cfg_nvmet_mrq, 8900 sizeof(struct lpfc_queue *), 8901 GFP_KERNEL); 8902 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8904 "3122 Fail allocate memory for " 8905 "fast-path RQ set hdr array\n"); 8906 goto out_error; 8907 } 8908 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8909 phba->cfg_nvmet_mrq, 8910 sizeof(struct lpfc_queue *), 8911 GFP_KERNEL); 8912 if (!phba->sli4_hba.nvmet_mrq_data) { 8913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8914 "3124 Fail allocate memory for " 8915 "fast-path RQ set data array\n"); 8916 goto out_error; 8917 } 8918 } 8919 } 8920 8921 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8922 8923 /* Create HBA Event Queues (EQs) */ 8924 for_each_present_cpu(cpu) { 8925 /* We only want to create 1 EQ per vector, even though 8926 * multiple CPUs might be using that vector. so only 8927 * selects the CPUs that are LPFC_CPU_FIRST_IRQ. 8928 */ 8929 cpup = &phba->sli4_hba.cpu_map[cpu]; 8930 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ)) 8931 continue; 8932 8933 /* Get a ptr to the Hardware Queue associated with this CPU */ 8934 qp = &phba->sli4_hba.hdwq[cpup->hdwq]; 8935 8936 /* Allocate an EQ */ 8937 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8938 phba->sli4_hba.eq_esize, 8939 phba->sli4_hba.eq_ecount, cpu); 8940 if (!qdesc) { 8941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8942 "0497 Failed allocate EQ (%d)\n", 8943 cpup->hdwq); 8944 goto out_error; 8945 } 8946 qdesc->qe_valid = 1; 8947 qdesc->hdwq = cpup->hdwq; 8948 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */ 8949 qdesc->last_cpu = qdesc->chann; 8950 8951 /* Save the allocated EQ in the Hardware Queue */ 8952 qp->hba_eq = qdesc; 8953 8954 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu); 8955 list_add(&qdesc->cpu_list, &eqi->list); 8956 } 8957 8958 /* Now we need to populate the other Hardware Queues, that share 8959 * an IRQ vector, with the associated EQ ptr. 8960 */ 8961 for_each_present_cpu(cpu) { 8962 cpup = &phba->sli4_hba.cpu_map[cpu]; 8963 8964 /* Check for EQ already allocated in previous loop */ 8965 if (cpup->flag & LPFC_CPU_FIRST_IRQ) 8966 continue; 8967 8968 /* Check for multiple CPUs per hdwq */ 8969 qp = &phba->sli4_hba.hdwq[cpup->hdwq]; 8970 if (qp->hba_eq) 8971 continue; 8972 8973 /* We need to share an EQ for this hdwq */ 8974 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ); 8975 eqcpup = &phba->sli4_hba.cpu_map[eqcpu]; 8976 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq; 8977 } 8978 8979 /* Allocate IO Path SLI4 CQ/WQs */ 8980 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 8981 if (lpfc_alloc_io_wq_cq(phba, idx)) 8982 goto out_error; 8983 } 8984 8985 if (phba->nvmet_support) { 8986 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8987 cpu = lpfc_find_cpu_handle(phba, idx, 8988 LPFC_FIND_BY_HDWQ); 8989 qdesc = lpfc_sli4_queue_alloc(phba, 8990 LPFC_DEFAULT_PAGE_SIZE, 8991 phba->sli4_hba.cq_esize, 8992 phba->sli4_hba.cq_ecount, 8993 cpu); 8994 if (!qdesc) { 8995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8996 "3142 Failed allocate NVME " 8997 "CQ Set (%d)\n", idx); 8998 goto out_error; 8999 } 9000 qdesc->qe_valid = 1; 9001 qdesc->hdwq = idx; 9002 qdesc->chann = cpu; 9003 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 9004 } 9005 } 9006 9007 /* 9008 * Create Slow Path Completion Queues (CQs) 9009 */ 9010 9011 cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ); 9012 /* Create slow-path Mailbox Command Complete Queue */ 9013 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9014 phba->sli4_hba.cq_esize, 9015 phba->sli4_hba.cq_ecount, cpu); 9016 if (!qdesc) { 9017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9018 "0500 Failed allocate slow-path mailbox CQ\n"); 9019 goto out_error; 9020 } 9021 qdesc->qe_valid = 1; 9022 phba->sli4_hba.mbx_cq = qdesc; 9023 9024 /* Create slow-path ELS Complete Queue */ 9025 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9026 phba->sli4_hba.cq_esize, 9027 phba->sli4_hba.cq_ecount, cpu); 9028 if (!qdesc) { 9029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9030 "0501 Failed allocate slow-path ELS CQ\n"); 9031 goto out_error; 9032 } 9033 qdesc->qe_valid = 1; 9034 qdesc->chann = cpu; 9035 phba->sli4_hba.els_cq = qdesc; 9036 9037 9038 /* 9039 * Create Slow Path Work Queues (WQs) 9040 */ 9041 9042 /* Create Mailbox Command Queue */ 9043 9044 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9045 phba->sli4_hba.mq_esize, 9046 phba->sli4_hba.mq_ecount, cpu); 9047 if (!qdesc) { 9048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9049 "0505 Failed allocate slow-path MQ\n"); 9050 goto out_error; 9051 } 9052 qdesc->chann = cpu; 9053 phba->sli4_hba.mbx_wq = qdesc; 9054 9055 /* 9056 * Create ELS Work Queues 9057 */ 9058 9059 /* Create slow-path ELS Work Queue */ 9060 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9061 phba->sli4_hba.wq_esize, 9062 phba->sli4_hba.wq_ecount, cpu); 9063 if (!qdesc) { 9064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9065 "0504 Failed allocate slow-path ELS WQ\n"); 9066 goto out_error; 9067 } 9068 qdesc->chann = cpu; 9069 phba->sli4_hba.els_wq = qdesc; 9070 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 9071 9072 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9073 /* Create NVME LS Complete Queue */ 9074 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9075 phba->sli4_hba.cq_esize, 9076 phba->sli4_hba.cq_ecount, cpu); 9077 if (!qdesc) { 9078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9079 "6079 Failed allocate NVME LS CQ\n"); 9080 goto out_error; 9081 } 9082 qdesc->chann = cpu; 9083 qdesc->qe_valid = 1; 9084 phba->sli4_hba.nvmels_cq = qdesc; 9085 9086 /* Create NVME LS Work Queue */ 9087 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9088 phba->sli4_hba.wq_esize, 9089 phba->sli4_hba.wq_ecount, cpu); 9090 if (!qdesc) { 9091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9092 "6080 Failed allocate NVME LS WQ\n"); 9093 goto out_error; 9094 } 9095 qdesc->chann = cpu; 9096 phba->sli4_hba.nvmels_wq = qdesc; 9097 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 9098 } 9099 9100 /* 9101 * Create Receive Queue (RQ) 9102 */ 9103 9104 /* Create Receive Queue for header */ 9105 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9106 phba->sli4_hba.rq_esize, 9107 phba->sli4_hba.rq_ecount, cpu); 9108 if (!qdesc) { 9109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9110 "0506 Failed allocate receive HRQ\n"); 9111 goto out_error; 9112 } 9113 phba->sli4_hba.hdr_rq = qdesc; 9114 9115 /* Create Receive Queue for data */ 9116 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 9117 phba->sli4_hba.rq_esize, 9118 phba->sli4_hba.rq_ecount, cpu); 9119 if (!qdesc) { 9120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9121 "0507 Failed allocate receive DRQ\n"); 9122 goto out_error; 9123 } 9124 phba->sli4_hba.dat_rq = qdesc; 9125 9126 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 9127 phba->nvmet_support) { 9128 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 9129 cpu = lpfc_find_cpu_handle(phba, idx, 9130 LPFC_FIND_BY_HDWQ); 9131 /* Create NVMET Receive Queue for header */ 9132 qdesc = lpfc_sli4_queue_alloc(phba, 9133 LPFC_DEFAULT_PAGE_SIZE, 9134 phba->sli4_hba.rq_esize, 9135 LPFC_NVMET_RQE_DEF_COUNT, 9136 cpu); 9137 if (!qdesc) { 9138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9139 "3146 Failed allocate " 9140 "receive HRQ\n"); 9141 goto out_error; 9142 } 9143 qdesc->hdwq = idx; 9144 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 9145 9146 /* Only needed for header of RQ pair */ 9147 qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp), 9148 GFP_KERNEL, 9149 cpu_to_node(cpu)); 9150 if (qdesc->rqbp == NULL) { 9151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9152 "6131 Failed allocate " 9153 "Header RQBP\n"); 9154 goto out_error; 9155 } 9156 9157 /* Put list in known state in case driver load fails. */ 9158 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 9159 9160 /* Create NVMET Receive Queue for data */ 9161 qdesc = lpfc_sli4_queue_alloc(phba, 9162 LPFC_DEFAULT_PAGE_SIZE, 9163 phba->sli4_hba.rq_esize, 9164 LPFC_NVMET_RQE_DEF_COUNT, 9165 cpu); 9166 if (!qdesc) { 9167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9168 "3156 Failed allocate " 9169 "receive DRQ\n"); 9170 goto out_error; 9171 } 9172 qdesc->hdwq = idx; 9173 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 9174 } 9175 } 9176 9177 /* Clear NVME stats */ 9178 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9179 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 9180 memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0, 9181 sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat)); 9182 } 9183 } 9184 9185 /* Clear SCSI stats */ 9186 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 9187 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 9188 memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0, 9189 sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat)); 9190 } 9191 } 9192 9193 return 0; 9194 9195 out_error: 9196 lpfc_sli4_queue_destroy(phba); 9197 return -ENOMEM; 9198 } 9199 9200 static inline void 9201 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 9202 { 9203 if (*qp != NULL) { 9204 lpfc_sli4_queue_free(*qp); 9205 *qp = NULL; 9206 } 9207 } 9208 9209 static inline void 9210 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 9211 { 9212 int idx; 9213 9214 if (*qs == NULL) 9215 return; 9216 9217 for (idx = 0; idx < max; idx++) 9218 __lpfc_sli4_release_queue(&(*qs)[idx]); 9219 9220 kfree(*qs); 9221 *qs = NULL; 9222 } 9223 9224 static inline void 9225 lpfc_sli4_release_hdwq(struct lpfc_hba *phba) 9226 { 9227 struct lpfc_sli4_hdw_queue *hdwq; 9228 struct lpfc_queue *eq; 9229 uint32_t idx; 9230 9231 hdwq = phba->sli4_hba.hdwq; 9232 9233 /* Loop thru all Hardware Queues */ 9234 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 9235 /* Free the CQ/WQ corresponding to the Hardware Queue */ 9236 lpfc_sli4_queue_free(hdwq[idx].io_cq); 9237 lpfc_sli4_queue_free(hdwq[idx].io_wq); 9238 hdwq[idx].io_cq = NULL; 9239 hdwq[idx].io_wq = NULL; 9240 if (phba->cfg_xpsgl && !phba->nvmet_support) 9241 lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]); 9242 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]); 9243 } 9244 /* Loop thru all IRQ vectors */ 9245 for (idx = 0; idx < phba->cfg_irq_chann; idx++) { 9246 /* Free the EQ corresponding to the IRQ vector */ 9247 eq = phba->sli4_hba.hba_eq_hdl[idx].eq; 9248 lpfc_sli4_queue_free(eq); 9249 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL; 9250 } 9251 } 9252 9253 /** 9254 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 9255 * @phba: pointer to lpfc hba data structure. 9256 * 9257 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 9258 * operation. 9259 * 9260 * Return codes 9261 * 0 - successful 9262 * -ENOMEM - No available memory 9263 * -EIO - The mailbox failed to complete successfully. 9264 **/ 9265 void 9266 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 9267 { 9268 /* 9269 * Set FREE_INIT before beginning to free the queues. 9270 * Wait until the users of queues to acknowledge to 9271 * release queues by clearing FREE_WAIT. 9272 */ 9273 spin_lock_irq(&phba->hbalock); 9274 phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT; 9275 while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) { 9276 spin_unlock_irq(&phba->hbalock); 9277 msleep(20); 9278 spin_lock_irq(&phba->hbalock); 9279 } 9280 spin_unlock_irq(&phba->hbalock); 9281 9282 lpfc_sli4_cleanup_poll_list(phba); 9283 9284 /* Release HBA eqs */ 9285 if (phba->sli4_hba.hdwq) 9286 lpfc_sli4_release_hdwq(phba); 9287 9288 if (phba->nvmet_support) { 9289 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 9290 phba->cfg_nvmet_mrq); 9291 9292 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 9293 phba->cfg_nvmet_mrq); 9294 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 9295 phba->cfg_nvmet_mrq); 9296 } 9297 9298 /* Release mailbox command work queue */ 9299 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 9300 9301 /* Release ELS work queue */ 9302 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 9303 9304 /* Release ELS work queue */ 9305 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 9306 9307 /* Release unsolicited receive queue */ 9308 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 9309 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 9310 9311 /* Release ELS complete queue */ 9312 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 9313 9314 /* Release NVME LS complete queue */ 9315 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 9316 9317 /* Release mailbox command complete queue */ 9318 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 9319 9320 /* Everything on this list has been freed */ 9321 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 9322 9323 /* Done with freeing the queues */ 9324 spin_lock_irq(&phba->hbalock); 9325 phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT; 9326 spin_unlock_irq(&phba->hbalock); 9327 } 9328 9329 int 9330 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 9331 { 9332 struct lpfc_rqb *rqbp; 9333 struct lpfc_dmabuf *h_buf; 9334 struct rqb_dmabuf *rqb_buffer; 9335 9336 rqbp = rq->rqbp; 9337 while (!list_empty(&rqbp->rqb_buffer_list)) { 9338 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 9339 struct lpfc_dmabuf, list); 9340 9341 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 9342 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 9343 rqbp->buffer_count--; 9344 } 9345 return 1; 9346 } 9347 9348 static int 9349 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 9350 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 9351 int qidx, uint32_t qtype) 9352 { 9353 struct lpfc_sli_ring *pring; 9354 int rc; 9355 9356 if (!eq || !cq || !wq) { 9357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9358 "6085 Fast-path %s (%d) not allocated\n", 9359 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 9360 return -ENOMEM; 9361 } 9362 9363 /* create the Cq first */ 9364 rc = lpfc_cq_create(phba, cq, eq, 9365 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 9366 if (rc) { 9367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9368 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 9369 qidx, (uint32_t)rc); 9370 return rc; 9371 } 9372 9373 if (qtype != LPFC_MBOX) { 9374 /* Setup cq_map for fast lookup */ 9375 if (cq_map) 9376 *cq_map = cq->queue_id; 9377 9378 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9379 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 9380 qidx, cq->queue_id, qidx, eq->queue_id); 9381 9382 /* create the wq */ 9383 rc = lpfc_wq_create(phba, wq, cq, qtype); 9384 if (rc) { 9385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9386 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n", 9387 qidx, (uint32_t)rc); 9388 /* no need to tear down cq - caller will do so */ 9389 return rc; 9390 } 9391 9392 /* Bind this CQ/WQ to the NVME ring */ 9393 pring = wq->pring; 9394 pring->sli.sli4.wqp = (void *)wq; 9395 cq->pring = pring; 9396 9397 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9398 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 9399 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 9400 } else { 9401 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 9402 if (rc) { 9403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9404 "0539 Failed setup of slow-path MQ: " 9405 "rc = 0x%x\n", rc); 9406 /* no need to tear down cq - caller will do so */ 9407 return rc; 9408 } 9409 9410 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9411 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 9412 phba->sli4_hba.mbx_wq->queue_id, 9413 phba->sli4_hba.mbx_cq->queue_id); 9414 } 9415 9416 return 0; 9417 } 9418 9419 /** 9420 * lpfc_setup_cq_lookup - Setup the CQ lookup table 9421 * @phba: pointer to lpfc hba data structure. 9422 * 9423 * This routine will populate the cq_lookup table by all 9424 * available CQ queue_id's. 9425 **/ 9426 static void 9427 lpfc_setup_cq_lookup(struct lpfc_hba *phba) 9428 { 9429 struct lpfc_queue *eq, *childq; 9430 int qidx; 9431 9432 memset(phba->sli4_hba.cq_lookup, 0, 9433 (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1))); 9434 /* Loop thru all IRQ vectors */ 9435 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) { 9436 /* Get the EQ corresponding to the IRQ vector */ 9437 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq; 9438 if (!eq) 9439 continue; 9440 /* Loop through all CQs associated with that EQ */ 9441 list_for_each_entry(childq, &eq->child_list, list) { 9442 if (childq->queue_id > phba->sli4_hba.cq_max) 9443 continue; 9444 if (childq->subtype == LPFC_IO) 9445 phba->sli4_hba.cq_lookup[childq->queue_id] = 9446 childq; 9447 } 9448 } 9449 } 9450 9451 /** 9452 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 9453 * @phba: pointer to lpfc hba data structure. 9454 * 9455 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 9456 * operation. 9457 * 9458 * Return codes 9459 * 0 - successful 9460 * -ENOMEM - No available memory 9461 * -EIO - The mailbox failed to complete successfully. 9462 **/ 9463 int 9464 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 9465 { 9466 uint32_t shdr_status, shdr_add_status; 9467 union lpfc_sli4_cfg_shdr *shdr; 9468 struct lpfc_vector_map_info *cpup; 9469 struct lpfc_sli4_hdw_queue *qp; 9470 LPFC_MBOXQ_t *mboxq; 9471 int qidx, cpu; 9472 uint32_t length, usdelay; 9473 int rc = -ENOMEM; 9474 9475 /* Check for dual-ULP support */ 9476 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9477 if (!mboxq) { 9478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9479 "3249 Unable to allocate memory for " 9480 "QUERY_FW_CFG mailbox command\n"); 9481 return -ENOMEM; 9482 } 9483 length = (sizeof(struct lpfc_mbx_query_fw_config) - 9484 sizeof(struct lpfc_sli4_cfg_mhdr)); 9485 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9486 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 9487 length, LPFC_SLI4_MBX_EMBED); 9488 9489 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9490 9491 shdr = (union lpfc_sli4_cfg_shdr *) 9492 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9493 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9494 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 9495 if (shdr_status || shdr_add_status || rc) { 9496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9497 "3250 QUERY_FW_CFG mailbox failed with status " 9498 "x%x add_status x%x, mbx status x%x\n", 9499 shdr_status, shdr_add_status, rc); 9500 if (rc != MBX_TIMEOUT) 9501 mempool_free(mboxq, phba->mbox_mem_pool); 9502 rc = -ENXIO; 9503 goto out_error; 9504 } 9505 9506 phba->sli4_hba.fw_func_mode = 9507 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 9508 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 9509 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 9510 phba->sli4_hba.physical_port = 9511 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 9512 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9513 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 9514 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 9515 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 9516 9517 if (rc != MBX_TIMEOUT) 9518 mempool_free(mboxq, phba->mbox_mem_pool); 9519 9520 /* 9521 * Set up HBA Event Queues (EQs) 9522 */ 9523 qp = phba->sli4_hba.hdwq; 9524 9525 /* Set up HBA event queue */ 9526 if (!qp) { 9527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9528 "3147 Fast-path EQs not allocated\n"); 9529 rc = -ENOMEM; 9530 goto out_error; 9531 } 9532 9533 /* Loop thru all IRQ vectors */ 9534 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) { 9535 /* Create HBA Event Queues (EQs) in order */ 9536 for_each_present_cpu(cpu) { 9537 cpup = &phba->sli4_hba.cpu_map[cpu]; 9538 9539 /* Look for the CPU thats using that vector with 9540 * LPFC_CPU_FIRST_IRQ set. 9541 */ 9542 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ)) 9543 continue; 9544 if (qidx != cpup->eq) 9545 continue; 9546 9547 /* Create an EQ for that vector */ 9548 rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq, 9549 phba->cfg_fcp_imax); 9550 if (rc) { 9551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9552 "0523 Failed setup of fast-path" 9553 " EQ (%d), rc = 0x%x\n", 9554 cpup->eq, (uint32_t)rc); 9555 goto out_destroy; 9556 } 9557 9558 /* Save the EQ for that vector in the hba_eq_hdl */ 9559 phba->sli4_hba.hba_eq_hdl[cpup->eq].eq = 9560 qp[cpup->hdwq].hba_eq; 9561 9562 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9563 "2584 HBA EQ setup: queue[%d]-id=%d\n", 9564 cpup->eq, 9565 qp[cpup->hdwq].hba_eq->queue_id); 9566 } 9567 } 9568 9569 /* Loop thru all Hardware Queues */ 9570 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 9571 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ); 9572 cpup = &phba->sli4_hba.cpu_map[cpu]; 9573 9574 /* Create the CQ/WQ corresponding to the Hardware Queue */ 9575 rc = lpfc_create_wq_cq(phba, 9576 phba->sli4_hba.hdwq[cpup->hdwq].hba_eq, 9577 qp[qidx].io_cq, 9578 qp[qidx].io_wq, 9579 &phba->sli4_hba.hdwq[qidx].io_cq_map, 9580 qidx, 9581 LPFC_IO); 9582 if (rc) { 9583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9584 "0535 Failed to setup fastpath " 9585 "IO WQ/CQ (%d), rc = 0x%x\n", 9586 qidx, (uint32_t)rc); 9587 goto out_destroy; 9588 } 9589 } 9590 9591 /* 9592 * Set up Slow Path Complete Queues (CQs) 9593 */ 9594 9595 /* Set up slow-path MBOX CQ/MQ */ 9596 9597 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 9598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9599 "0528 %s not allocated\n", 9600 phba->sli4_hba.mbx_cq ? 9601 "Mailbox WQ" : "Mailbox CQ"); 9602 rc = -ENOMEM; 9603 goto out_destroy; 9604 } 9605 9606 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq, 9607 phba->sli4_hba.mbx_cq, 9608 phba->sli4_hba.mbx_wq, 9609 NULL, 0, LPFC_MBOX); 9610 if (rc) { 9611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9612 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 9613 (uint32_t)rc); 9614 goto out_destroy; 9615 } 9616 if (phba->nvmet_support) { 9617 if (!phba->sli4_hba.nvmet_cqset) { 9618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9619 "3165 Fast-path NVME CQ Set " 9620 "array not allocated\n"); 9621 rc = -ENOMEM; 9622 goto out_destroy; 9623 } 9624 if (phba->cfg_nvmet_mrq > 1) { 9625 rc = lpfc_cq_create_set(phba, 9626 phba->sli4_hba.nvmet_cqset, 9627 qp, 9628 LPFC_WCQ, LPFC_NVMET); 9629 if (rc) { 9630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9631 "3164 Failed setup of NVME CQ " 9632 "Set, rc = 0x%x\n", 9633 (uint32_t)rc); 9634 goto out_destroy; 9635 } 9636 } else { 9637 /* Set up NVMET Receive Complete Queue */ 9638 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 9639 qp[0].hba_eq, 9640 LPFC_WCQ, LPFC_NVMET); 9641 if (rc) { 9642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9643 "6089 Failed setup NVMET CQ: " 9644 "rc = 0x%x\n", (uint32_t)rc); 9645 goto out_destroy; 9646 } 9647 phba->sli4_hba.nvmet_cqset[0]->chann = 0; 9648 9649 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9650 "6090 NVMET CQ setup: cq-id=%d, " 9651 "parent eq-id=%d\n", 9652 phba->sli4_hba.nvmet_cqset[0]->queue_id, 9653 qp[0].hba_eq->queue_id); 9654 } 9655 } 9656 9657 /* Set up slow-path ELS WQ/CQ */ 9658 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 9659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9660 "0530 ELS %s not allocated\n", 9661 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 9662 rc = -ENOMEM; 9663 goto out_destroy; 9664 } 9665 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq, 9666 phba->sli4_hba.els_cq, 9667 phba->sli4_hba.els_wq, 9668 NULL, 0, LPFC_ELS); 9669 if (rc) { 9670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9671 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 9672 (uint32_t)rc); 9673 goto out_destroy; 9674 } 9675 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9676 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 9677 phba->sli4_hba.els_wq->queue_id, 9678 phba->sli4_hba.els_cq->queue_id); 9679 9680 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9681 /* Set up NVME LS Complete Queue */ 9682 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 9683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9684 "6091 LS %s not allocated\n", 9685 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 9686 rc = -ENOMEM; 9687 goto out_destroy; 9688 } 9689 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq, 9690 phba->sli4_hba.nvmels_cq, 9691 phba->sli4_hba.nvmels_wq, 9692 NULL, 0, LPFC_NVME_LS); 9693 if (rc) { 9694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9695 "0526 Failed setup of NVVME LS WQ/CQ: " 9696 "rc = 0x%x\n", (uint32_t)rc); 9697 goto out_destroy; 9698 } 9699 9700 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9701 "6096 ELS WQ setup: wq-id=%d, " 9702 "parent cq-id=%d\n", 9703 phba->sli4_hba.nvmels_wq->queue_id, 9704 phba->sli4_hba.nvmels_cq->queue_id); 9705 } 9706 9707 /* 9708 * Create NVMET Receive Queue (RQ) 9709 */ 9710 if (phba->nvmet_support) { 9711 if ((!phba->sli4_hba.nvmet_cqset) || 9712 (!phba->sli4_hba.nvmet_mrq_hdr) || 9713 (!phba->sli4_hba.nvmet_mrq_data)) { 9714 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9715 "6130 MRQ CQ Queues not " 9716 "allocated\n"); 9717 rc = -ENOMEM; 9718 goto out_destroy; 9719 } 9720 if (phba->cfg_nvmet_mrq > 1) { 9721 rc = lpfc_mrq_create(phba, 9722 phba->sli4_hba.nvmet_mrq_hdr, 9723 phba->sli4_hba.nvmet_mrq_data, 9724 phba->sli4_hba.nvmet_cqset, 9725 LPFC_NVMET); 9726 if (rc) { 9727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9728 "6098 Failed setup of NVMET " 9729 "MRQ: rc = 0x%x\n", 9730 (uint32_t)rc); 9731 goto out_destroy; 9732 } 9733 9734 } else { 9735 rc = lpfc_rq_create(phba, 9736 phba->sli4_hba.nvmet_mrq_hdr[0], 9737 phba->sli4_hba.nvmet_mrq_data[0], 9738 phba->sli4_hba.nvmet_cqset[0], 9739 LPFC_NVMET); 9740 if (rc) { 9741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9742 "6057 Failed setup of NVMET " 9743 "Receive Queue: rc = 0x%x\n", 9744 (uint32_t)rc); 9745 goto out_destroy; 9746 } 9747 9748 lpfc_printf_log( 9749 phba, KERN_INFO, LOG_INIT, 9750 "6099 NVMET RQ setup: hdr-rq-id=%d, " 9751 "dat-rq-id=%d parent cq-id=%d\n", 9752 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 9753 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 9754 phba->sli4_hba.nvmet_cqset[0]->queue_id); 9755 9756 } 9757 } 9758 9759 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 9760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9761 "0540 Receive Queue not allocated\n"); 9762 rc = -ENOMEM; 9763 goto out_destroy; 9764 } 9765 9766 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 9767 phba->sli4_hba.els_cq, LPFC_USOL); 9768 if (rc) { 9769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9770 "0541 Failed setup of Receive Queue: " 9771 "rc = 0x%x\n", (uint32_t)rc); 9772 goto out_destroy; 9773 } 9774 9775 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9776 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 9777 "parent cq-id=%d\n", 9778 phba->sli4_hba.hdr_rq->queue_id, 9779 phba->sli4_hba.dat_rq->queue_id, 9780 phba->sli4_hba.els_cq->queue_id); 9781 9782 if (phba->cfg_fcp_imax) 9783 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 9784 else 9785 usdelay = 0; 9786 9787 for (qidx = 0; qidx < phba->cfg_irq_chann; 9788 qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 9789 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 9790 usdelay); 9791 9792 if (phba->sli4_hba.cq_max) { 9793 kfree(phba->sli4_hba.cq_lookup); 9794 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1), 9795 sizeof(struct lpfc_queue *), GFP_KERNEL); 9796 if (!phba->sli4_hba.cq_lookup) { 9797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9798 "0549 Failed setup of CQ Lookup table: " 9799 "size 0x%x\n", phba->sli4_hba.cq_max); 9800 rc = -ENOMEM; 9801 goto out_destroy; 9802 } 9803 lpfc_setup_cq_lookup(phba); 9804 } 9805 return 0; 9806 9807 out_destroy: 9808 lpfc_sli4_queue_unset(phba); 9809 out_error: 9810 return rc; 9811 } 9812 9813 /** 9814 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 9815 * @phba: pointer to lpfc hba data structure. 9816 * 9817 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 9818 * operation. 9819 * 9820 * Return codes 9821 * 0 - successful 9822 * -ENOMEM - No available memory 9823 * -EIO - The mailbox failed to complete successfully. 9824 **/ 9825 void 9826 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 9827 { 9828 struct lpfc_sli4_hdw_queue *qp; 9829 struct lpfc_queue *eq; 9830 int qidx; 9831 9832 /* Unset mailbox command work queue */ 9833 if (phba->sli4_hba.mbx_wq) 9834 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 9835 9836 /* Unset NVME LS work queue */ 9837 if (phba->sli4_hba.nvmels_wq) 9838 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 9839 9840 /* Unset ELS work queue */ 9841 if (phba->sli4_hba.els_wq) 9842 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 9843 9844 /* Unset unsolicited receive queue */ 9845 if (phba->sli4_hba.hdr_rq) 9846 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 9847 phba->sli4_hba.dat_rq); 9848 9849 /* Unset mailbox command complete queue */ 9850 if (phba->sli4_hba.mbx_cq) 9851 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 9852 9853 /* Unset ELS complete queue */ 9854 if (phba->sli4_hba.els_cq) 9855 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 9856 9857 /* Unset NVME LS complete queue */ 9858 if (phba->sli4_hba.nvmels_cq) 9859 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 9860 9861 if (phba->nvmet_support) { 9862 /* Unset NVMET MRQ queue */ 9863 if (phba->sli4_hba.nvmet_mrq_hdr) { 9864 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9865 lpfc_rq_destroy( 9866 phba, 9867 phba->sli4_hba.nvmet_mrq_hdr[qidx], 9868 phba->sli4_hba.nvmet_mrq_data[qidx]); 9869 } 9870 9871 /* Unset NVMET CQ Set complete queue */ 9872 if (phba->sli4_hba.nvmet_cqset) { 9873 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9874 lpfc_cq_destroy( 9875 phba, phba->sli4_hba.nvmet_cqset[qidx]); 9876 } 9877 } 9878 9879 /* Unset fast-path SLI4 queues */ 9880 if (phba->sli4_hba.hdwq) { 9881 /* Loop thru all Hardware Queues */ 9882 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) { 9883 /* Destroy the CQ/WQ corresponding to Hardware Queue */ 9884 qp = &phba->sli4_hba.hdwq[qidx]; 9885 lpfc_wq_destroy(phba, qp->io_wq); 9886 lpfc_cq_destroy(phba, qp->io_cq); 9887 } 9888 /* Loop thru all IRQ vectors */ 9889 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) { 9890 /* Destroy the EQ corresponding to the IRQ vector */ 9891 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq; 9892 lpfc_eq_destroy(phba, eq); 9893 } 9894 } 9895 9896 kfree(phba->sli4_hba.cq_lookup); 9897 phba->sli4_hba.cq_lookup = NULL; 9898 phba->sli4_hba.cq_max = 0; 9899 } 9900 9901 /** 9902 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9903 * @phba: pointer to lpfc hba data structure. 9904 * 9905 * This routine is invoked to allocate and set up a pool of completion queue 9906 * events. The body of the completion queue event is a completion queue entry 9907 * CQE. For now, this pool is used for the interrupt service routine to queue 9908 * the following HBA completion queue events for the worker thread to process: 9909 * - Mailbox asynchronous events 9910 * - Receive queue completion unsolicited events 9911 * Later, this can be used for all the slow-path events. 9912 * 9913 * Return codes 9914 * 0 - successful 9915 * -ENOMEM - No available memory 9916 **/ 9917 static int 9918 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9919 { 9920 struct lpfc_cq_event *cq_event; 9921 int i; 9922 9923 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9924 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9925 if (!cq_event) 9926 goto out_pool_create_fail; 9927 list_add_tail(&cq_event->list, 9928 &phba->sli4_hba.sp_cqe_event_pool); 9929 } 9930 return 0; 9931 9932 out_pool_create_fail: 9933 lpfc_sli4_cq_event_pool_destroy(phba); 9934 return -ENOMEM; 9935 } 9936 9937 /** 9938 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9939 * @phba: pointer to lpfc hba data structure. 9940 * 9941 * This routine is invoked to free the pool of completion queue events at 9942 * driver unload time. Note that, it is the responsibility of the driver 9943 * cleanup routine to free all the outstanding completion-queue events 9944 * allocated from this pool back into the pool before invoking this routine 9945 * to destroy the pool. 9946 **/ 9947 static void 9948 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9949 { 9950 struct lpfc_cq_event *cq_event, *next_cq_event; 9951 9952 list_for_each_entry_safe(cq_event, next_cq_event, 9953 &phba->sli4_hba.sp_cqe_event_pool, list) { 9954 list_del(&cq_event->list); 9955 kfree(cq_event); 9956 } 9957 } 9958 9959 /** 9960 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9961 * @phba: pointer to lpfc hba data structure. 9962 * 9963 * This routine is the lock free version of the API invoked to allocate a 9964 * completion-queue event from the free pool. 9965 * 9966 * Return: Pointer to the newly allocated completion-queue event if successful 9967 * NULL otherwise. 9968 **/ 9969 struct lpfc_cq_event * 9970 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9971 { 9972 struct lpfc_cq_event *cq_event = NULL; 9973 9974 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9975 struct lpfc_cq_event, list); 9976 return cq_event; 9977 } 9978 9979 /** 9980 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9981 * @phba: pointer to lpfc hba data structure. 9982 * 9983 * This routine is the lock version of the API invoked to allocate a 9984 * completion-queue event from the free pool. 9985 * 9986 * Return: Pointer to the newly allocated completion-queue event if successful 9987 * NULL otherwise. 9988 **/ 9989 struct lpfc_cq_event * 9990 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9991 { 9992 struct lpfc_cq_event *cq_event; 9993 unsigned long iflags; 9994 9995 spin_lock_irqsave(&phba->hbalock, iflags); 9996 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9997 spin_unlock_irqrestore(&phba->hbalock, iflags); 9998 return cq_event; 9999 } 10000 10001 /** 10002 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 10003 * @phba: pointer to lpfc hba data structure. 10004 * @cq_event: pointer to the completion queue event to be freed. 10005 * 10006 * This routine is the lock free version of the API invoked to release a 10007 * completion-queue event back into the free pool. 10008 **/ 10009 void 10010 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 10011 struct lpfc_cq_event *cq_event) 10012 { 10013 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 10014 } 10015 10016 /** 10017 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 10018 * @phba: pointer to lpfc hba data structure. 10019 * @cq_event: pointer to the completion queue event to be freed. 10020 * 10021 * This routine is the lock version of the API invoked to release a 10022 * completion-queue event back into the free pool. 10023 **/ 10024 void 10025 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 10026 struct lpfc_cq_event *cq_event) 10027 { 10028 unsigned long iflags; 10029 spin_lock_irqsave(&phba->hbalock, iflags); 10030 __lpfc_sli4_cq_event_release(phba, cq_event); 10031 spin_unlock_irqrestore(&phba->hbalock, iflags); 10032 } 10033 10034 /** 10035 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 10036 * @phba: pointer to lpfc hba data structure. 10037 * 10038 * This routine is to free all the pending completion-queue events to the 10039 * back into the free pool for device reset. 10040 **/ 10041 static void 10042 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 10043 { 10044 LIST_HEAD(cqelist); 10045 struct lpfc_cq_event *cqe; 10046 unsigned long iflags; 10047 10048 /* Retrieve all the pending WCQEs from pending WCQE lists */ 10049 spin_lock_irqsave(&phba->hbalock, iflags); 10050 /* Pending FCP XRI abort events */ 10051 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 10052 &cqelist); 10053 /* Pending ELS XRI abort events */ 10054 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 10055 &cqelist); 10056 /* Pending asynnc events */ 10057 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 10058 &cqelist); 10059 spin_unlock_irqrestore(&phba->hbalock, iflags); 10060 10061 while (!list_empty(&cqelist)) { 10062 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 10063 lpfc_sli4_cq_event_release(phba, cqe); 10064 } 10065 } 10066 10067 /** 10068 * lpfc_pci_function_reset - Reset pci function. 10069 * @phba: pointer to lpfc hba data structure. 10070 * 10071 * This routine is invoked to request a PCI function reset. It will destroys 10072 * all resources assigned to the PCI function which originates this request. 10073 * 10074 * Return codes 10075 * 0 - successful 10076 * -ENOMEM - No available memory 10077 * -EIO - The mailbox failed to complete successfully. 10078 **/ 10079 int 10080 lpfc_pci_function_reset(struct lpfc_hba *phba) 10081 { 10082 LPFC_MBOXQ_t *mboxq; 10083 uint32_t rc = 0, if_type; 10084 uint32_t shdr_status, shdr_add_status; 10085 uint32_t rdy_chk; 10086 uint32_t port_reset = 0; 10087 union lpfc_sli4_cfg_shdr *shdr; 10088 struct lpfc_register reg_data; 10089 uint16_t devid; 10090 10091 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 10092 switch (if_type) { 10093 case LPFC_SLI_INTF_IF_TYPE_0: 10094 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 10095 GFP_KERNEL); 10096 if (!mboxq) { 10097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10098 "0494 Unable to allocate memory for " 10099 "issuing SLI_FUNCTION_RESET mailbox " 10100 "command\n"); 10101 return -ENOMEM; 10102 } 10103 10104 /* Setup PCI function reset mailbox-ioctl command */ 10105 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10106 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 10107 LPFC_SLI4_MBX_EMBED); 10108 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10109 shdr = (union lpfc_sli4_cfg_shdr *) 10110 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 10111 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 10112 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 10113 &shdr->response); 10114 if (rc != MBX_TIMEOUT) 10115 mempool_free(mboxq, phba->mbox_mem_pool); 10116 if (shdr_status || shdr_add_status || rc) { 10117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10118 "0495 SLI_FUNCTION_RESET mailbox " 10119 "failed with status x%x add_status x%x," 10120 " mbx status x%x\n", 10121 shdr_status, shdr_add_status, rc); 10122 rc = -ENXIO; 10123 } 10124 break; 10125 case LPFC_SLI_INTF_IF_TYPE_2: 10126 case LPFC_SLI_INTF_IF_TYPE_6: 10127 wait: 10128 /* 10129 * Poll the Port Status Register and wait for RDY for 10130 * up to 30 seconds. If the port doesn't respond, treat 10131 * it as an error. 10132 */ 10133 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 10134 if (lpfc_readl(phba->sli4_hba.u.if_type2. 10135 STATUSregaddr, ®_data.word0)) { 10136 rc = -ENODEV; 10137 goto out; 10138 } 10139 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 10140 break; 10141 msleep(20); 10142 } 10143 10144 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 10145 phba->work_status[0] = readl( 10146 phba->sli4_hba.u.if_type2.ERR1regaddr); 10147 phba->work_status[1] = readl( 10148 phba->sli4_hba.u.if_type2.ERR2regaddr); 10149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10150 "2890 Port not ready, port status reg " 10151 "0x%x error 1=0x%x, error 2=0x%x\n", 10152 reg_data.word0, 10153 phba->work_status[0], 10154 phba->work_status[1]); 10155 rc = -ENODEV; 10156 goto out; 10157 } 10158 10159 if (!port_reset) { 10160 /* 10161 * Reset the port now 10162 */ 10163 reg_data.word0 = 0; 10164 bf_set(lpfc_sliport_ctrl_end, ®_data, 10165 LPFC_SLIPORT_LITTLE_ENDIAN); 10166 bf_set(lpfc_sliport_ctrl_ip, ®_data, 10167 LPFC_SLIPORT_INIT_PORT); 10168 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 10169 CTRLregaddr); 10170 /* flush */ 10171 pci_read_config_word(phba->pcidev, 10172 PCI_DEVICE_ID, &devid); 10173 10174 port_reset = 1; 10175 msleep(20); 10176 goto wait; 10177 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 10178 rc = -ENODEV; 10179 goto out; 10180 } 10181 break; 10182 10183 case LPFC_SLI_INTF_IF_TYPE_1: 10184 default: 10185 break; 10186 } 10187 10188 out: 10189 /* Catch the not-ready port failure after a port reset. */ 10190 if (rc) { 10191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10192 "3317 HBA not functional: IP Reset Failed " 10193 "try: echo fw_reset > board_mode\n"); 10194 rc = -ENODEV; 10195 } 10196 10197 return rc; 10198 } 10199 10200 /** 10201 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 10202 * @phba: pointer to lpfc hba data structure. 10203 * 10204 * This routine is invoked to set up the PCI device memory space for device 10205 * with SLI-4 interface spec. 10206 * 10207 * Return codes 10208 * 0 - successful 10209 * other values - error 10210 **/ 10211 static int 10212 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 10213 { 10214 struct pci_dev *pdev = phba->pcidev; 10215 unsigned long bar0map_len, bar1map_len, bar2map_len; 10216 int error; 10217 uint32_t if_type; 10218 10219 if (!pdev) 10220 return -ENODEV; 10221 10222 /* Set the device DMA mask size */ 10223 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 10224 if (error) 10225 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 10226 if (error) 10227 return error; 10228 10229 /* 10230 * The BARs and register set definitions and offset locations are 10231 * dependent on the if_type. 10232 */ 10233 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 10234 &phba->sli4_hba.sli_intf.word0)) { 10235 return -ENODEV; 10236 } 10237 10238 /* There is no SLI3 failback for SLI4 devices. */ 10239 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 10240 LPFC_SLI_INTF_VALID) { 10241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10242 "2894 SLI_INTF reg contents invalid " 10243 "sli_intf reg 0x%x\n", 10244 phba->sli4_hba.sli_intf.word0); 10245 return -ENODEV; 10246 } 10247 10248 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 10249 /* 10250 * Get the bus address of SLI4 device Bar regions and the 10251 * number of bytes required by each mapping. The mapping of the 10252 * particular PCI BARs regions is dependent on the type of 10253 * SLI4 device. 10254 */ 10255 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 10256 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 10257 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 10258 10259 /* 10260 * Map SLI4 PCI Config Space Register base to a kernel virtual 10261 * addr 10262 */ 10263 phba->sli4_hba.conf_regs_memmap_p = 10264 ioremap(phba->pci_bar0_map, bar0map_len); 10265 if (!phba->sli4_hba.conf_regs_memmap_p) { 10266 dev_printk(KERN_ERR, &pdev->dev, 10267 "ioremap failed for SLI4 PCI config " 10268 "registers.\n"); 10269 return -ENODEV; 10270 } 10271 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 10272 /* Set up BAR0 PCI config space register memory map */ 10273 lpfc_sli4_bar0_register_memmap(phba, if_type); 10274 } else { 10275 phba->pci_bar0_map = pci_resource_start(pdev, 1); 10276 bar0map_len = pci_resource_len(pdev, 1); 10277 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 10278 dev_printk(KERN_ERR, &pdev->dev, 10279 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 10280 return -ENODEV; 10281 } 10282 phba->sli4_hba.conf_regs_memmap_p = 10283 ioremap(phba->pci_bar0_map, bar0map_len); 10284 if (!phba->sli4_hba.conf_regs_memmap_p) { 10285 dev_printk(KERN_ERR, &pdev->dev, 10286 "ioremap failed for SLI4 PCI config " 10287 "registers.\n"); 10288 return -ENODEV; 10289 } 10290 lpfc_sli4_bar0_register_memmap(phba, if_type); 10291 } 10292 10293 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 10294 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) { 10295 /* 10296 * Map SLI4 if type 0 HBA Control Register base to a 10297 * kernel virtual address and setup the registers. 10298 */ 10299 phba->pci_bar1_map = pci_resource_start(pdev, 10300 PCI_64BIT_BAR2); 10301 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 10302 phba->sli4_hba.ctrl_regs_memmap_p = 10303 ioremap(phba->pci_bar1_map, 10304 bar1map_len); 10305 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 10306 dev_err(&pdev->dev, 10307 "ioremap failed for SLI4 HBA " 10308 "control registers.\n"); 10309 error = -ENOMEM; 10310 goto out_iounmap_conf; 10311 } 10312 phba->pci_bar2_memmap_p = 10313 phba->sli4_hba.ctrl_regs_memmap_p; 10314 lpfc_sli4_bar1_register_memmap(phba, if_type); 10315 } else { 10316 error = -ENOMEM; 10317 goto out_iounmap_conf; 10318 } 10319 } 10320 10321 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) && 10322 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 10323 /* 10324 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel 10325 * virtual address and setup the registers. 10326 */ 10327 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 10328 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 10329 phba->sli4_hba.drbl_regs_memmap_p = 10330 ioremap(phba->pci_bar1_map, bar1map_len); 10331 if (!phba->sli4_hba.drbl_regs_memmap_p) { 10332 dev_err(&pdev->dev, 10333 "ioremap failed for SLI4 HBA doorbell registers.\n"); 10334 error = -ENOMEM; 10335 goto out_iounmap_conf; 10336 } 10337 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 10338 lpfc_sli4_bar1_register_memmap(phba, if_type); 10339 } 10340 10341 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 10342 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) { 10343 /* 10344 * Map SLI4 if type 0 HBA Doorbell Register base to 10345 * a kernel virtual address and setup the registers. 10346 */ 10347 phba->pci_bar2_map = pci_resource_start(pdev, 10348 PCI_64BIT_BAR4); 10349 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 10350 phba->sli4_hba.drbl_regs_memmap_p = 10351 ioremap(phba->pci_bar2_map, 10352 bar2map_len); 10353 if (!phba->sli4_hba.drbl_regs_memmap_p) { 10354 dev_err(&pdev->dev, 10355 "ioremap failed for SLI4 HBA" 10356 " doorbell registers.\n"); 10357 error = -ENOMEM; 10358 goto out_iounmap_ctrl; 10359 } 10360 phba->pci_bar4_memmap_p = 10361 phba->sli4_hba.drbl_regs_memmap_p; 10362 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 10363 if (error) 10364 goto out_iounmap_all; 10365 } else { 10366 error = -ENOMEM; 10367 goto out_iounmap_all; 10368 } 10369 } 10370 10371 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 && 10372 pci_resource_start(pdev, PCI_64BIT_BAR4)) { 10373 /* 10374 * Map SLI4 if type 6 HBA DPP Register base to a kernel 10375 * virtual address and setup the registers. 10376 */ 10377 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 10378 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 10379 phba->sli4_hba.dpp_regs_memmap_p = 10380 ioremap(phba->pci_bar2_map, bar2map_len); 10381 if (!phba->sli4_hba.dpp_regs_memmap_p) { 10382 dev_err(&pdev->dev, 10383 "ioremap failed for SLI4 HBA dpp registers.\n"); 10384 error = -ENOMEM; 10385 goto out_iounmap_ctrl; 10386 } 10387 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p; 10388 } 10389 10390 /* Set up the EQ/CQ register handeling functions now */ 10391 switch (if_type) { 10392 case LPFC_SLI_INTF_IF_TYPE_0: 10393 case LPFC_SLI_INTF_IF_TYPE_2: 10394 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr; 10395 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db; 10396 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db; 10397 break; 10398 case LPFC_SLI_INTF_IF_TYPE_6: 10399 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr; 10400 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db; 10401 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db; 10402 break; 10403 default: 10404 break; 10405 } 10406 10407 return 0; 10408 10409 out_iounmap_all: 10410 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 10411 out_iounmap_ctrl: 10412 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 10413 out_iounmap_conf: 10414 iounmap(phba->sli4_hba.conf_regs_memmap_p); 10415 10416 return error; 10417 } 10418 10419 /** 10420 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 10421 * @phba: pointer to lpfc hba data structure. 10422 * 10423 * This routine is invoked to unset the PCI device memory space for device 10424 * with SLI-4 interface spec. 10425 **/ 10426 static void 10427 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 10428 { 10429 uint32_t if_type; 10430 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 10431 10432 switch (if_type) { 10433 case LPFC_SLI_INTF_IF_TYPE_0: 10434 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 10435 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 10436 iounmap(phba->sli4_hba.conf_regs_memmap_p); 10437 break; 10438 case LPFC_SLI_INTF_IF_TYPE_2: 10439 iounmap(phba->sli4_hba.conf_regs_memmap_p); 10440 break; 10441 case LPFC_SLI_INTF_IF_TYPE_6: 10442 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 10443 iounmap(phba->sli4_hba.conf_regs_memmap_p); 10444 if (phba->sli4_hba.dpp_regs_memmap_p) 10445 iounmap(phba->sli4_hba.dpp_regs_memmap_p); 10446 break; 10447 case LPFC_SLI_INTF_IF_TYPE_1: 10448 default: 10449 dev_printk(KERN_ERR, &phba->pcidev->dev, 10450 "FATAL - unsupported SLI4 interface type - %d\n", 10451 if_type); 10452 break; 10453 } 10454 } 10455 10456 /** 10457 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 10458 * @phba: pointer to lpfc hba data structure. 10459 * 10460 * This routine is invoked to enable the MSI-X interrupt vectors to device 10461 * with SLI-3 interface specs. 10462 * 10463 * Return codes 10464 * 0 - successful 10465 * other values - error 10466 **/ 10467 static int 10468 lpfc_sli_enable_msix(struct lpfc_hba *phba) 10469 { 10470 int rc; 10471 LPFC_MBOXQ_t *pmb; 10472 10473 /* Set up MSI-X multi-message vectors */ 10474 rc = pci_alloc_irq_vectors(phba->pcidev, 10475 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 10476 if (rc < 0) { 10477 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10478 "0420 PCI enable MSI-X failed (%d)\n", rc); 10479 goto vec_fail_out; 10480 } 10481 10482 /* 10483 * Assign MSI-X vectors to interrupt handlers 10484 */ 10485 10486 /* vector-0 is associated to slow-path handler */ 10487 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 10488 &lpfc_sli_sp_intr_handler, 0, 10489 LPFC_SP_DRIVER_HANDLER_NAME, phba); 10490 if (rc) { 10491 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10492 "0421 MSI-X slow-path request_irq failed " 10493 "(%d)\n", rc); 10494 goto msi_fail_out; 10495 } 10496 10497 /* vector-1 is associated to fast-path handler */ 10498 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 10499 &lpfc_sli_fp_intr_handler, 0, 10500 LPFC_FP_DRIVER_HANDLER_NAME, phba); 10501 10502 if (rc) { 10503 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10504 "0429 MSI-X fast-path request_irq failed " 10505 "(%d)\n", rc); 10506 goto irq_fail_out; 10507 } 10508 10509 /* 10510 * Configure HBA MSI-X attention conditions to messages 10511 */ 10512 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10513 10514 if (!pmb) { 10515 rc = -ENOMEM; 10516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10517 "0474 Unable to allocate memory for issuing " 10518 "MBOX_CONFIG_MSI command\n"); 10519 goto mem_fail_out; 10520 } 10521 rc = lpfc_config_msi(phba, pmb); 10522 if (rc) 10523 goto mbx_fail_out; 10524 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 10525 if (rc != MBX_SUCCESS) { 10526 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 10527 "0351 Config MSI mailbox command failed, " 10528 "mbxCmd x%x, mbxStatus x%x\n", 10529 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 10530 goto mbx_fail_out; 10531 } 10532 10533 /* Free memory allocated for mailbox command */ 10534 mempool_free(pmb, phba->mbox_mem_pool); 10535 return rc; 10536 10537 mbx_fail_out: 10538 /* Free memory allocated for mailbox command */ 10539 mempool_free(pmb, phba->mbox_mem_pool); 10540 10541 mem_fail_out: 10542 /* free the irq already requested */ 10543 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 10544 10545 irq_fail_out: 10546 /* free the irq already requested */ 10547 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 10548 10549 msi_fail_out: 10550 /* Unconfigure MSI-X capability structure */ 10551 pci_free_irq_vectors(phba->pcidev); 10552 10553 vec_fail_out: 10554 return rc; 10555 } 10556 10557 /** 10558 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 10559 * @phba: pointer to lpfc hba data structure. 10560 * 10561 * This routine is invoked to enable the MSI interrupt mode to device with 10562 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 10563 * enable the MSI vector. The device driver is responsible for calling the 10564 * request_irq() to register MSI vector with a interrupt the handler, which 10565 * is done in this function. 10566 * 10567 * Return codes 10568 * 0 - successful 10569 * other values - error 10570 */ 10571 static int 10572 lpfc_sli_enable_msi(struct lpfc_hba *phba) 10573 { 10574 int rc; 10575 10576 rc = pci_enable_msi(phba->pcidev); 10577 if (!rc) 10578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10579 "0462 PCI enable MSI mode success.\n"); 10580 else { 10581 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10582 "0471 PCI enable MSI mode failed (%d)\n", rc); 10583 return rc; 10584 } 10585 10586 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 10587 0, LPFC_DRIVER_NAME, phba); 10588 if (rc) { 10589 pci_disable_msi(phba->pcidev); 10590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10591 "0478 MSI request_irq failed (%d)\n", rc); 10592 } 10593 return rc; 10594 } 10595 10596 /** 10597 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 10598 * @phba: pointer to lpfc hba data structure. 10599 * 10600 * This routine is invoked to enable device interrupt and associate driver's 10601 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 10602 * spec. Depends on the interrupt mode configured to the driver, the driver 10603 * will try to fallback from the configured interrupt mode to an interrupt 10604 * mode which is supported by the platform, kernel, and device in the order 10605 * of: 10606 * MSI-X -> MSI -> IRQ. 10607 * 10608 * Return codes 10609 * 0 - successful 10610 * other values - error 10611 **/ 10612 static uint32_t 10613 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 10614 { 10615 uint32_t intr_mode = LPFC_INTR_ERROR; 10616 int retval; 10617 10618 if (cfg_mode == 2) { 10619 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 10620 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 10621 if (!retval) { 10622 /* Now, try to enable MSI-X interrupt mode */ 10623 retval = lpfc_sli_enable_msix(phba); 10624 if (!retval) { 10625 /* Indicate initialization to MSI-X mode */ 10626 phba->intr_type = MSIX; 10627 intr_mode = 2; 10628 } 10629 } 10630 } 10631 10632 /* Fallback to MSI if MSI-X initialization failed */ 10633 if (cfg_mode >= 1 && phba->intr_type == NONE) { 10634 retval = lpfc_sli_enable_msi(phba); 10635 if (!retval) { 10636 /* Indicate initialization to MSI mode */ 10637 phba->intr_type = MSI; 10638 intr_mode = 1; 10639 } 10640 } 10641 10642 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 10643 if (phba->intr_type == NONE) { 10644 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 10645 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 10646 if (!retval) { 10647 /* Indicate initialization to INTx mode */ 10648 phba->intr_type = INTx; 10649 intr_mode = 0; 10650 } 10651 } 10652 return intr_mode; 10653 } 10654 10655 /** 10656 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 10657 * @phba: pointer to lpfc hba data structure. 10658 * 10659 * This routine is invoked to disable device interrupt and disassociate the 10660 * driver's interrupt handler(s) from interrupt vector(s) to device with 10661 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 10662 * release the interrupt vector(s) for the message signaled interrupt. 10663 **/ 10664 static void 10665 lpfc_sli_disable_intr(struct lpfc_hba *phba) 10666 { 10667 int nr_irqs, i; 10668 10669 if (phba->intr_type == MSIX) 10670 nr_irqs = LPFC_MSIX_VECTORS; 10671 else 10672 nr_irqs = 1; 10673 10674 for (i = 0; i < nr_irqs; i++) 10675 free_irq(pci_irq_vector(phba->pcidev, i), phba); 10676 pci_free_irq_vectors(phba->pcidev); 10677 10678 /* Reset interrupt management states */ 10679 phba->intr_type = NONE; 10680 phba->sli.slistat.sli_intr = 0; 10681 } 10682 10683 /** 10684 * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue 10685 * @phba: pointer to lpfc hba data structure. 10686 * @id: EQ vector index or Hardware Queue index 10687 * @match: LPFC_FIND_BY_EQ = match by EQ 10688 * LPFC_FIND_BY_HDWQ = match by Hardware Queue 10689 * Return the CPU that matches the selection criteria 10690 */ 10691 static uint16_t 10692 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match) 10693 { 10694 struct lpfc_vector_map_info *cpup; 10695 int cpu; 10696 10697 /* Loop through all CPUs */ 10698 for_each_present_cpu(cpu) { 10699 cpup = &phba->sli4_hba.cpu_map[cpu]; 10700 10701 /* If we are matching by EQ, there may be multiple CPUs using 10702 * using the same vector, so select the one with 10703 * LPFC_CPU_FIRST_IRQ set. 10704 */ 10705 if ((match == LPFC_FIND_BY_EQ) && 10706 (cpup->flag & LPFC_CPU_FIRST_IRQ) && 10707 (cpup->eq == id)) 10708 return cpu; 10709 10710 /* If matching by HDWQ, select the first CPU that matches */ 10711 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id)) 10712 return cpu; 10713 } 10714 return 0; 10715 } 10716 10717 #ifdef CONFIG_X86 10718 /** 10719 * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded 10720 * @phba: pointer to lpfc hba data structure. 10721 * @cpu: CPU map index 10722 * @phys_id: CPU package physical id 10723 * @core_id: CPU core id 10724 */ 10725 static int 10726 lpfc_find_hyper(struct lpfc_hba *phba, int cpu, 10727 uint16_t phys_id, uint16_t core_id) 10728 { 10729 struct lpfc_vector_map_info *cpup; 10730 int idx; 10731 10732 for_each_present_cpu(idx) { 10733 cpup = &phba->sli4_hba.cpu_map[idx]; 10734 /* Does the cpup match the one we are looking for */ 10735 if ((cpup->phys_id == phys_id) && 10736 (cpup->core_id == core_id) && 10737 (cpu != idx)) 10738 return 1; 10739 } 10740 return 0; 10741 } 10742 #endif 10743 10744 /* 10745 * lpfc_assign_eq_map_info - Assigns eq for vector_map structure 10746 * @phba: pointer to lpfc hba data structure. 10747 * @eqidx: index for eq and irq vector 10748 * @flag: flags to set for vector_map structure 10749 * @cpu: cpu used to index vector_map structure 10750 * 10751 * The routine assigns eq info into vector_map structure 10752 */ 10753 static inline void 10754 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag, 10755 unsigned int cpu) 10756 { 10757 struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu]; 10758 struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx); 10759 10760 cpup->eq = eqidx; 10761 cpup->flag |= flag; 10762 10763 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10764 "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n", 10765 cpu, eqhdl->irq, cpup->eq, cpup->flag); 10766 } 10767 10768 /** 10769 * lpfc_cpu_map_array_init - Initialize cpu_map structure 10770 * @phba: pointer to lpfc hba data structure. 10771 * 10772 * The routine initializes the cpu_map array structure 10773 */ 10774 static void 10775 lpfc_cpu_map_array_init(struct lpfc_hba *phba) 10776 { 10777 struct lpfc_vector_map_info *cpup; 10778 struct lpfc_eq_intr_info *eqi; 10779 int cpu; 10780 10781 for_each_possible_cpu(cpu) { 10782 cpup = &phba->sli4_hba.cpu_map[cpu]; 10783 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY; 10784 cpup->core_id = LPFC_VECTOR_MAP_EMPTY; 10785 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY; 10786 cpup->eq = LPFC_VECTOR_MAP_EMPTY; 10787 cpup->flag = 0; 10788 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu); 10789 INIT_LIST_HEAD(&eqi->list); 10790 eqi->icnt = 0; 10791 } 10792 } 10793 10794 /** 10795 * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure 10796 * @phba: pointer to lpfc hba data structure. 10797 * 10798 * The routine initializes the hba_eq_hdl array structure 10799 */ 10800 static void 10801 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba) 10802 { 10803 struct lpfc_hba_eq_hdl *eqhdl; 10804 int i; 10805 10806 for (i = 0; i < phba->cfg_irq_chann; i++) { 10807 eqhdl = lpfc_get_eq_hdl(i); 10808 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY; 10809 eqhdl->phba = phba; 10810 } 10811 } 10812 10813 /** 10814 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 10815 * @phba: pointer to lpfc hba data structure. 10816 * @vectors: number of msix vectors allocated. 10817 * 10818 * The routine will figure out the CPU affinity assignment for every 10819 * MSI-X vector allocated for the HBA. 10820 * In addition, the CPU to IO channel mapping will be calculated 10821 * and the phba->sli4_hba.cpu_map array will reflect this. 10822 */ 10823 static void 10824 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 10825 { 10826 int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu; 10827 int max_phys_id, min_phys_id; 10828 int max_core_id, min_core_id; 10829 struct lpfc_vector_map_info *cpup; 10830 struct lpfc_vector_map_info *new_cpup; 10831 #ifdef CONFIG_X86 10832 struct cpuinfo_x86 *cpuinfo; 10833 #endif 10834 10835 max_phys_id = 0; 10836 min_phys_id = LPFC_VECTOR_MAP_EMPTY; 10837 max_core_id = 0; 10838 min_core_id = LPFC_VECTOR_MAP_EMPTY; 10839 10840 /* Update CPU map with physical id and core id of each CPU */ 10841 for_each_present_cpu(cpu) { 10842 cpup = &phba->sli4_hba.cpu_map[cpu]; 10843 #ifdef CONFIG_X86 10844 cpuinfo = &cpu_data(cpu); 10845 cpup->phys_id = cpuinfo->phys_proc_id; 10846 cpup->core_id = cpuinfo->cpu_core_id; 10847 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id)) 10848 cpup->flag |= LPFC_CPU_MAP_HYPER; 10849 #else 10850 /* No distinction between CPUs for other platforms */ 10851 cpup->phys_id = 0; 10852 cpup->core_id = cpu; 10853 #endif 10854 10855 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10856 "3328 CPU %d physid %d coreid %d flag x%x\n", 10857 cpu, cpup->phys_id, cpup->core_id, cpup->flag); 10858 10859 if (cpup->phys_id > max_phys_id) 10860 max_phys_id = cpup->phys_id; 10861 if (cpup->phys_id < min_phys_id) 10862 min_phys_id = cpup->phys_id; 10863 10864 if (cpup->core_id > max_core_id) 10865 max_core_id = cpup->core_id; 10866 if (cpup->core_id < min_core_id) 10867 min_core_id = cpup->core_id; 10868 } 10869 10870 /* After looking at each irq vector assigned to this pcidev, its 10871 * possible to see that not ALL CPUs have been accounted for. 10872 * Next we will set any unassigned (unaffinitized) cpu map 10873 * entries to a IRQ on the same phys_id. 10874 */ 10875 first_cpu = cpumask_first(cpu_present_mask); 10876 start_cpu = first_cpu; 10877 10878 for_each_present_cpu(cpu) { 10879 cpup = &phba->sli4_hba.cpu_map[cpu]; 10880 10881 /* Is this CPU entry unassigned */ 10882 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 10883 /* Mark CPU as IRQ not assigned by the kernel */ 10884 cpup->flag |= LPFC_CPU_MAP_UNASSIGN; 10885 10886 /* If so, find a new_cpup thats on the the SAME 10887 * phys_id as cpup. start_cpu will start where we 10888 * left off so all unassigned entries don't get assgined 10889 * the IRQ of the first entry. 10890 */ 10891 new_cpu = start_cpu; 10892 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 10893 new_cpup = &phba->sli4_hba.cpu_map[new_cpu]; 10894 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) && 10895 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) && 10896 (new_cpup->phys_id == cpup->phys_id)) 10897 goto found_same; 10898 new_cpu = cpumask_next( 10899 new_cpu, cpu_present_mask); 10900 if (new_cpu == nr_cpumask_bits) 10901 new_cpu = first_cpu; 10902 } 10903 /* At this point, we leave the CPU as unassigned */ 10904 continue; 10905 found_same: 10906 /* We found a matching phys_id, so copy the IRQ info */ 10907 cpup->eq = new_cpup->eq; 10908 10909 /* Bump start_cpu to the next slot to minmize the 10910 * chance of having multiple unassigned CPU entries 10911 * selecting the same IRQ. 10912 */ 10913 start_cpu = cpumask_next(new_cpu, cpu_present_mask); 10914 if (start_cpu == nr_cpumask_bits) 10915 start_cpu = first_cpu; 10916 10917 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10918 "3337 Set Affinity: CPU %d " 10919 "eq %d from peer cpu %d same " 10920 "phys_id (%d)\n", 10921 cpu, cpup->eq, new_cpu, 10922 cpup->phys_id); 10923 } 10924 } 10925 10926 /* Set any unassigned cpu map entries to a IRQ on any phys_id */ 10927 start_cpu = first_cpu; 10928 10929 for_each_present_cpu(cpu) { 10930 cpup = &phba->sli4_hba.cpu_map[cpu]; 10931 10932 /* Is this entry unassigned */ 10933 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 10934 /* Mark it as IRQ not assigned by the kernel */ 10935 cpup->flag |= LPFC_CPU_MAP_UNASSIGN; 10936 10937 /* If so, find a new_cpup thats on ANY phys_id 10938 * as the cpup. start_cpu will start where we 10939 * left off so all unassigned entries don't get 10940 * assigned the IRQ of the first entry. 10941 */ 10942 new_cpu = start_cpu; 10943 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 10944 new_cpup = &phba->sli4_hba.cpu_map[new_cpu]; 10945 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) && 10946 (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY)) 10947 goto found_any; 10948 new_cpu = cpumask_next( 10949 new_cpu, cpu_present_mask); 10950 if (new_cpu == nr_cpumask_bits) 10951 new_cpu = first_cpu; 10952 } 10953 /* We should never leave an entry unassigned */ 10954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10955 "3339 Set Affinity: CPU %d " 10956 "eq %d UNASSIGNED\n", 10957 cpup->hdwq, cpup->eq); 10958 continue; 10959 found_any: 10960 /* We found an available entry, copy the IRQ info */ 10961 cpup->eq = new_cpup->eq; 10962 10963 /* Bump start_cpu to the next slot to minmize the 10964 * chance of having multiple unassigned CPU entries 10965 * selecting the same IRQ. 10966 */ 10967 start_cpu = cpumask_next(new_cpu, cpu_present_mask); 10968 if (start_cpu == nr_cpumask_bits) 10969 start_cpu = first_cpu; 10970 10971 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10972 "3338 Set Affinity: CPU %d " 10973 "eq %d from peer cpu %d (%d/%d)\n", 10974 cpu, cpup->eq, new_cpu, 10975 new_cpup->phys_id, new_cpup->core_id); 10976 } 10977 } 10978 10979 /* Assign hdwq indices that are unique across all cpus in the map 10980 * that are also FIRST_CPUs. 10981 */ 10982 idx = 0; 10983 for_each_present_cpu(cpu) { 10984 cpup = &phba->sli4_hba.cpu_map[cpu]; 10985 10986 /* Only FIRST IRQs get a hdwq index assignment. */ 10987 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ)) 10988 continue; 10989 10990 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */ 10991 cpup->hdwq = idx; 10992 idx++; 10993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10994 "3333 Set Affinity: CPU %d (phys %d core %d): " 10995 "hdwq %d eq %d flg x%x\n", 10996 cpu, cpup->phys_id, cpup->core_id, 10997 cpup->hdwq, cpup->eq, cpup->flag); 10998 } 10999 /* Associate a hdwq with each cpu_map entry 11000 * This will be 1 to 1 - hdwq to cpu, unless there are less 11001 * hardware queues then CPUs. For that case we will just round-robin 11002 * the available hardware queues as they get assigned to CPUs. 11003 * The next_idx is the idx from the FIRST_CPU loop above to account 11004 * for irq_chann < hdwq. The idx is used for round-robin assignments 11005 * and needs to start at 0. 11006 */ 11007 next_idx = idx; 11008 start_cpu = 0; 11009 idx = 0; 11010 for_each_present_cpu(cpu) { 11011 cpup = &phba->sli4_hba.cpu_map[cpu]; 11012 11013 /* FIRST cpus are already mapped. */ 11014 if (cpup->flag & LPFC_CPU_FIRST_IRQ) 11015 continue; 11016 11017 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq 11018 * of the unassigned cpus to the next idx so that all 11019 * hdw queues are fully utilized. 11020 */ 11021 if (next_idx < phba->cfg_hdw_queue) { 11022 cpup->hdwq = next_idx; 11023 next_idx++; 11024 continue; 11025 } 11026 11027 /* Not a First CPU and all hdw_queues are used. Reuse a 11028 * Hardware Queue for another CPU, so be smart about it 11029 * and pick one that has its IRQ/EQ mapped to the same phys_id 11030 * (CPU package) and core_id. 11031 */ 11032 new_cpu = start_cpu; 11033 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 11034 new_cpup = &phba->sli4_hba.cpu_map[new_cpu]; 11035 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY && 11036 new_cpup->phys_id == cpup->phys_id && 11037 new_cpup->core_id == cpup->core_id) { 11038 goto found_hdwq; 11039 } 11040 new_cpu = cpumask_next(new_cpu, cpu_present_mask); 11041 if (new_cpu == nr_cpumask_bits) 11042 new_cpu = first_cpu; 11043 } 11044 11045 /* If we can't match both phys_id and core_id, 11046 * settle for just a phys_id match. 11047 */ 11048 new_cpu = start_cpu; 11049 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 11050 new_cpup = &phba->sli4_hba.cpu_map[new_cpu]; 11051 if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY && 11052 new_cpup->phys_id == cpup->phys_id) 11053 goto found_hdwq; 11054 11055 new_cpu = cpumask_next(new_cpu, cpu_present_mask); 11056 if (new_cpu == nr_cpumask_bits) 11057 new_cpu = first_cpu; 11058 } 11059 11060 /* Otherwise just round robin on cfg_hdw_queue */ 11061 cpup->hdwq = idx % phba->cfg_hdw_queue; 11062 idx++; 11063 goto logit; 11064 found_hdwq: 11065 /* We found an available entry, copy the IRQ info */ 11066 start_cpu = cpumask_next(new_cpu, cpu_present_mask); 11067 if (start_cpu == nr_cpumask_bits) 11068 start_cpu = first_cpu; 11069 cpup->hdwq = new_cpup->hdwq; 11070 logit: 11071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11072 "3335 Set Affinity: CPU %d (phys %d core %d): " 11073 "hdwq %d eq %d flg x%x\n", 11074 cpu, cpup->phys_id, cpup->core_id, 11075 cpup->hdwq, cpup->eq, cpup->flag); 11076 } 11077 11078 /* 11079 * Initialize the cpu_map slots for not-present cpus in case 11080 * a cpu is hot-added. Perform a simple hdwq round robin assignment. 11081 */ 11082 idx = 0; 11083 for_each_possible_cpu(cpu) { 11084 cpup = &phba->sli4_hba.cpu_map[cpu]; 11085 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY) 11086 continue; 11087 11088 cpup->hdwq = idx++ % phba->cfg_hdw_queue; 11089 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11090 "3340 Set Affinity: not present " 11091 "CPU %d hdwq %d\n", 11092 cpu, cpup->hdwq); 11093 } 11094 11095 /* The cpu_map array will be used later during initialization 11096 * when EQ / CQ / WQs are allocated and configured. 11097 */ 11098 return; 11099 } 11100 11101 /** 11102 * lpfc_cpuhp_get_eq 11103 * 11104 * @phba: pointer to lpfc hba data structure. 11105 * @cpu: cpu going offline 11106 * @eqlist: 11107 */ 11108 static void 11109 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu, 11110 struct list_head *eqlist) 11111 { 11112 const struct cpumask *maskp; 11113 struct lpfc_queue *eq; 11114 cpumask_t tmp; 11115 u16 idx; 11116 11117 for (idx = 0; idx < phba->cfg_irq_chann; idx++) { 11118 maskp = pci_irq_get_affinity(phba->pcidev, idx); 11119 if (!maskp) 11120 continue; 11121 /* 11122 * if irq is not affinitized to the cpu going 11123 * then we don't need to poll the eq attached 11124 * to it. 11125 */ 11126 if (!cpumask_and(&tmp, maskp, cpumask_of(cpu))) 11127 continue; 11128 /* get the cpus that are online and are affini- 11129 * tized to this irq vector. If the count is 11130 * more than 1 then cpuhp is not going to shut- 11131 * down this vector. Since this cpu has not 11132 * gone offline yet, we need >1. 11133 */ 11134 cpumask_and(&tmp, maskp, cpu_online_mask); 11135 if (cpumask_weight(&tmp) > 1) 11136 continue; 11137 11138 /* Now that we have an irq to shutdown, get the eq 11139 * mapped to this irq. Note: multiple hdwq's in 11140 * the software can share an eq, but eventually 11141 * only eq will be mapped to this vector 11142 */ 11143 eq = phba->sli4_hba.hba_eq_hdl[idx].eq; 11144 list_add(&eq->_poll_list, eqlist); 11145 } 11146 } 11147 11148 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba) 11149 { 11150 if (phba->sli_rev != LPFC_SLI_REV4) 11151 return; 11152 11153 cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state, 11154 &phba->cpuhp); 11155 /* 11156 * unregistering the instance doesn't stop the polling 11157 * timer. Wait for the poll timer to retire. 11158 */ 11159 synchronize_rcu(); 11160 del_timer_sync(&phba->cpuhp_poll_timer); 11161 } 11162 11163 static void lpfc_cpuhp_remove(struct lpfc_hba *phba) 11164 { 11165 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 11166 return; 11167 11168 __lpfc_cpuhp_remove(phba); 11169 } 11170 11171 static void lpfc_cpuhp_add(struct lpfc_hba *phba) 11172 { 11173 if (phba->sli_rev != LPFC_SLI_REV4) 11174 return; 11175 11176 rcu_read_lock(); 11177 11178 if (!list_empty(&phba->poll_list)) { 11179 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0); 11180 mod_timer(&phba->cpuhp_poll_timer, 11181 jiffies + msecs_to_jiffies(LPFC_POLL_HB)); 11182 } 11183 11184 rcu_read_unlock(); 11185 11186 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, 11187 &phba->cpuhp); 11188 } 11189 11190 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval) 11191 { 11192 if (phba->pport->load_flag & FC_UNLOADING) { 11193 *retval = -EAGAIN; 11194 return true; 11195 } 11196 11197 if (phba->sli_rev != LPFC_SLI_REV4) { 11198 *retval = 0; 11199 return true; 11200 } 11201 11202 /* proceed with the hotplug */ 11203 return false; 11204 } 11205 11206 /** 11207 * lpfc_irq_set_aff - set IRQ affinity 11208 * @eqhdl: EQ handle 11209 * @cpu: cpu to set affinity 11210 * 11211 **/ 11212 static inline void 11213 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu) 11214 { 11215 cpumask_clear(&eqhdl->aff_mask); 11216 cpumask_set_cpu(cpu, &eqhdl->aff_mask); 11217 irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING); 11218 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask); 11219 } 11220 11221 /** 11222 * lpfc_irq_clear_aff - clear IRQ affinity 11223 * @eqhdl: EQ handle 11224 * 11225 **/ 11226 static inline void 11227 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl) 11228 { 11229 cpumask_clear(&eqhdl->aff_mask); 11230 irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING); 11231 irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask); 11232 } 11233 11234 /** 11235 * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event 11236 * @phba: pointer to HBA context object. 11237 * @cpu: cpu going offline/online 11238 * @offline: true, cpu is going offline. false, cpu is coming online. 11239 * 11240 * If cpu is going offline, we'll try our best effort to find the next 11241 * online cpu on the phba's NUMA node and migrate all offlining IRQ affinities. 11242 * 11243 * If cpu is coming online, reaffinitize the IRQ back to the onlineng cpu. 11244 * 11245 * Note: Call only if cfg_irq_numa is enabled, otherwise rely on 11246 * PCI_IRQ_AFFINITY to auto-manage IRQ affinity. 11247 * 11248 **/ 11249 static void 11250 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline) 11251 { 11252 struct lpfc_vector_map_info *cpup; 11253 struct cpumask *aff_mask; 11254 unsigned int cpu_select, cpu_next, idx; 11255 const struct cpumask *numa_mask; 11256 11257 if (!phba->cfg_irq_numa) 11258 return; 11259 11260 numa_mask = &phba->sli4_hba.numa_mask; 11261 11262 if (!cpumask_test_cpu(cpu, numa_mask)) 11263 return; 11264 11265 cpup = &phba->sli4_hba.cpu_map[cpu]; 11266 11267 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ)) 11268 return; 11269 11270 if (offline) { 11271 /* Find next online CPU on NUMA node */ 11272 cpu_next = cpumask_next_wrap(cpu, numa_mask, cpu, true); 11273 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu_next); 11274 11275 /* Found a valid CPU */ 11276 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) { 11277 /* Go through each eqhdl and ensure offlining 11278 * cpu aff_mask is migrated 11279 */ 11280 for (idx = 0; idx < phba->cfg_irq_chann; idx++) { 11281 aff_mask = lpfc_get_aff_mask(idx); 11282 11283 /* Migrate affinity */ 11284 if (cpumask_test_cpu(cpu, aff_mask)) 11285 lpfc_irq_set_aff(lpfc_get_eq_hdl(idx), 11286 cpu_select); 11287 } 11288 } else { 11289 /* Rely on irqbalance if no online CPUs left on NUMA */ 11290 for (idx = 0; idx < phba->cfg_irq_chann; idx++) 11291 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx)); 11292 } 11293 } else { 11294 /* Migrate affinity back to this CPU */ 11295 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu); 11296 } 11297 } 11298 11299 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node) 11300 { 11301 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp); 11302 struct lpfc_queue *eq, *next; 11303 LIST_HEAD(eqlist); 11304 int retval; 11305 11306 if (!phba) { 11307 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id()); 11308 return 0; 11309 } 11310 11311 if (__lpfc_cpuhp_checks(phba, &retval)) 11312 return retval; 11313 11314 lpfc_irq_rebalance(phba, cpu, true); 11315 11316 lpfc_cpuhp_get_eq(phba, cpu, &eqlist); 11317 11318 /* start polling on these eq's */ 11319 list_for_each_entry_safe(eq, next, &eqlist, _poll_list) { 11320 list_del_init(&eq->_poll_list); 11321 lpfc_sli4_start_polling(eq); 11322 } 11323 11324 return 0; 11325 } 11326 11327 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node) 11328 { 11329 struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp); 11330 struct lpfc_queue *eq, *next; 11331 unsigned int n; 11332 int retval; 11333 11334 if (!phba) { 11335 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id()); 11336 return 0; 11337 } 11338 11339 if (__lpfc_cpuhp_checks(phba, &retval)) 11340 return retval; 11341 11342 lpfc_irq_rebalance(phba, cpu, false); 11343 11344 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) { 11345 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ); 11346 if (n == cpu) 11347 lpfc_sli4_stop_polling(eq); 11348 } 11349 11350 return 0; 11351 } 11352 11353 /** 11354 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 11355 * @phba: pointer to lpfc hba data structure. 11356 * 11357 * This routine is invoked to enable the MSI-X interrupt vectors to device 11358 * with SLI-4 interface spec. It also allocates MSI-X vectors and maps them 11359 * to cpus on the system. 11360 * 11361 * When cfg_irq_numa is enabled, the adapter will only allocate vectors for 11362 * the number of cpus on the same numa node as this adapter. The vectors are 11363 * allocated without requesting OS affinity mapping. A vector will be 11364 * allocated and assigned to each online and offline cpu. If the cpu is 11365 * online, then affinity will be set to that cpu. If the cpu is offline, then 11366 * affinity will be set to the nearest peer cpu within the numa node that is 11367 * online. If there are no online cpus within the numa node, affinity is not 11368 * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping 11369 * is consistent with the way cpu online/offline is handled when cfg_irq_numa is 11370 * configured. 11371 * 11372 * If numa mode is not enabled and there is more than 1 vector allocated, then 11373 * the driver relies on the managed irq interface where the OS assigns vector to 11374 * cpu affinity. The driver will then use that affinity mapping to setup its 11375 * cpu mapping table. 11376 * 11377 * Return codes 11378 * 0 - successful 11379 * other values - error 11380 **/ 11381 static int 11382 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 11383 { 11384 int vectors, rc, index; 11385 char *name; 11386 const struct cpumask *numa_mask = NULL; 11387 unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids; 11388 struct lpfc_hba_eq_hdl *eqhdl; 11389 const struct cpumask *maskp; 11390 bool first; 11391 unsigned int flags = PCI_IRQ_MSIX; 11392 11393 /* Set up MSI-X multi-message vectors */ 11394 vectors = phba->cfg_irq_chann; 11395 11396 if (phba->cfg_irq_numa) { 11397 numa_mask = &phba->sli4_hba.numa_mask; 11398 cpu_cnt = cpumask_weight(numa_mask); 11399 vectors = min(phba->cfg_irq_chann, cpu_cnt); 11400 11401 /* cpu: iterates over numa_mask including offline or online 11402 * cpu_select: iterates over online numa_mask to set affinity 11403 */ 11404 cpu = cpumask_first(numa_mask); 11405 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu); 11406 } else { 11407 flags |= PCI_IRQ_AFFINITY; 11408 } 11409 11410 rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags); 11411 if (rc < 0) { 11412 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11413 "0484 PCI enable MSI-X failed (%d)\n", rc); 11414 goto vec_fail_out; 11415 } 11416 vectors = rc; 11417 11418 /* Assign MSI-X vectors to interrupt handlers */ 11419 for (index = 0; index < vectors; index++) { 11420 eqhdl = lpfc_get_eq_hdl(index); 11421 name = eqhdl->handler_name; 11422 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 11423 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 11424 LPFC_DRIVER_HANDLER_NAME"%d", index); 11425 11426 eqhdl->idx = index; 11427 rc = request_irq(pci_irq_vector(phba->pcidev, index), 11428 &lpfc_sli4_hba_intr_handler, 0, 11429 name, eqhdl); 11430 if (rc) { 11431 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 11432 "0486 MSI-X fast-path (%d) " 11433 "request_irq failed (%d)\n", index, rc); 11434 goto cfg_fail_out; 11435 } 11436 11437 eqhdl->irq = pci_irq_vector(phba->pcidev, index); 11438 11439 if (phba->cfg_irq_numa) { 11440 /* If found a neighboring online cpu, set affinity */ 11441 if (cpu_select < nr_cpu_ids) 11442 lpfc_irq_set_aff(eqhdl, cpu_select); 11443 11444 /* Assign EQ to cpu_map */ 11445 lpfc_assign_eq_map_info(phba, index, 11446 LPFC_CPU_FIRST_IRQ, 11447 cpu); 11448 11449 /* Iterate to next offline or online cpu in numa_mask */ 11450 cpu = cpumask_next(cpu, numa_mask); 11451 11452 /* Find next online cpu in numa_mask to set affinity */ 11453 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu); 11454 } else if (vectors == 1) { 11455 cpu = cpumask_first(cpu_present_mask); 11456 lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ, 11457 cpu); 11458 } else { 11459 maskp = pci_irq_get_affinity(phba->pcidev, index); 11460 11461 first = true; 11462 /* Loop through all CPUs associated with vector index */ 11463 for_each_cpu_and(cpu, maskp, cpu_present_mask) { 11464 /* If this is the first CPU thats assigned to 11465 * this vector, set LPFC_CPU_FIRST_IRQ. 11466 */ 11467 lpfc_assign_eq_map_info(phba, index, 11468 first ? 11469 LPFC_CPU_FIRST_IRQ : 0, 11470 cpu); 11471 if (first) 11472 first = false; 11473 } 11474 } 11475 } 11476 11477 if (vectors != phba->cfg_irq_chann) { 11478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11479 "3238 Reducing IO channels to match number of " 11480 "MSI-X vectors, requested %d got %d\n", 11481 phba->cfg_irq_chann, vectors); 11482 if (phba->cfg_irq_chann > vectors) 11483 phba->cfg_irq_chann = vectors; 11484 } 11485 11486 return rc; 11487 11488 cfg_fail_out: 11489 /* free the irq already requested */ 11490 for (--index; index >= 0; index--) { 11491 eqhdl = lpfc_get_eq_hdl(index); 11492 lpfc_irq_clear_aff(eqhdl); 11493 irq_set_affinity_hint(eqhdl->irq, NULL); 11494 free_irq(eqhdl->irq, eqhdl); 11495 } 11496 11497 /* Unconfigure MSI-X capability structure */ 11498 pci_free_irq_vectors(phba->pcidev); 11499 11500 vec_fail_out: 11501 return rc; 11502 } 11503 11504 /** 11505 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 11506 * @phba: pointer to lpfc hba data structure. 11507 * 11508 * This routine is invoked to enable the MSI interrupt mode to device with 11509 * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is 11510 * called to enable the MSI vector. The device driver is responsible for 11511 * calling the request_irq() to register MSI vector with a interrupt the 11512 * handler, which is done in this function. 11513 * 11514 * Return codes 11515 * 0 - successful 11516 * other values - error 11517 **/ 11518 static int 11519 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 11520 { 11521 int rc, index; 11522 unsigned int cpu; 11523 struct lpfc_hba_eq_hdl *eqhdl; 11524 11525 rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1, 11526 PCI_IRQ_MSI | PCI_IRQ_AFFINITY); 11527 if (rc > 0) 11528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11529 "0487 PCI enable MSI mode success.\n"); 11530 else { 11531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11532 "0488 PCI enable MSI mode failed (%d)\n", rc); 11533 return rc ? rc : -1; 11534 } 11535 11536 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 11537 0, LPFC_DRIVER_NAME, phba); 11538 if (rc) { 11539 pci_free_irq_vectors(phba->pcidev); 11540 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 11541 "0490 MSI request_irq failed (%d)\n", rc); 11542 return rc; 11543 } 11544 11545 eqhdl = lpfc_get_eq_hdl(0); 11546 eqhdl->irq = pci_irq_vector(phba->pcidev, 0); 11547 11548 cpu = cpumask_first(cpu_present_mask); 11549 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu); 11550 11551 for (index = 0; index < phba->cfg_irq_chann; index++) { 11552 eqhdl = lpfc_get_eq_hdl(index); 11553 eqhdl->idx = index; 11554 } 11555 11556 return 0; 11557 } 11558 11559 /** 11560 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 11561 * @phba: pointer to lpfc hba data structure. 11562 * 11563 * This routine is invoked to enable device interrupt and associate driver's 11564 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 11565 * interface spec. Depends on the interrupt mode configured to the driver, 11566 * the driver will try to fallback from the configured interrupt mode to an 11567 * interrupt mode which is supported by the platform, kernel, and device in 11568 * the order of: 11569 * MSI-X -> MSI -> IRQ. 11570 * 11571 * Return codes 11572 * 0 - successful 11573 * other values - error 11574 **/ 11575 static uint32_t 11576 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 11577 { 11578 uint32_t intr_mode = LPFC_INTR_ERROR; 11579 int retval, idx; 11580 11581 if (cfg_mode == 2) { 11582 /* Preparation before conf_msi mbox cmd */ 11583 retval = 0; 11584 if (!retval) { 11585 /* Now, try to enable MSI-X interrupt mode */ 11586 retval = lpfc_sli4_enable_msix(phba); 11587 if (!retval) { 11588 /* Indicate initialization to MSI-X mode */ 11589 phba->intr_type = MSIX; 11590 intr_mode = 2; 11591 } 11592 } 11593 } 11594 11595 /* Fallback to MSI if MSI-X initialization failed */ 11596 if (cfg_mode >= 1 && phba->intr_type == NONE) { 11597 retval = lpfc_sli4_enable_msi(phba); 11598 if (!retval) { 11599 /* Indicate initialization to MSI mode */ 11600 phba->intr_type = MSI; 11601 intr_mode = 1; 11602 } 11603 } 11604 11605 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 11606 if (phba->intr_type == NONE) { 11607 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 11608 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 11609 if (!retval) { 11610 struct lpfc_hba_eq_hdl *eqhdl; 11611 unsigned int cpu; 11612 11613 /* Indicate initialization to INTx mode */ 11614 phba->intr_type = INTx; 11615 intr_mode = 0; 11616 11617 eqhdl = lpfc_get_eq_hdl(0); 11618 eqhdl->irq = pci_irq_vector(phba->pcidev, 0); 11619 11620 cpu = cpumask_first(cpu_present_mask); 11621 lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, 11622 cpu); 11623 for (idx = 0; idx < phba->cfg_irq_chann; idx++) { 11624 eqhdl = lpfc_get_eq_hdl(idx); 11625 eqhdl->idx = idx; 11626 } 11627 } 11628 } 11629 return intr_mode; 11630 } 11631 11632 /** 11633 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 11634 * @phba: pointer to lpfc hba data structure. 11635 * 11636 * This routine is invoked to disable device interrupt and disassociate 11637 * the driver's interrupt handler(s) from interrupt vector(s) to device 11638 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 11639 * will release the interrupt vector(s) for the message signaled interrupt. 11640 **/ 11641 static void 11642 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 11643 { 11644 /* Disable the currently initialized interrupt mode */ 11645 if (phba->intr_type == MSIX) { 11646 int index; 11647 struct lpfc_hba_eq_hdl *eqhdl; 11648 11649 /* Free up MSI-X multi-message vectors */ 11650 for (index = 0; index < phba->cfg_irq_chann; index++) { 11651 eqhdl = lpfc_get_eq_hdl(index); 11652 lpfc_irq_clear_aff(eqhdl); 11653 irq_set_affinity_hint(eqhdl->irq, NULL); 11654 free_irq(eqhdl->irq, eqhdl); 11655 } 11656 } else { 11657 free_irq(phba->pcidev->irq, phba); 11658 } 11659 11660 pci_free_irq_vectors(phba->pcidev); 11661 11662 /* Reset interrupt management states */ 11663 phba->intr_type = NONE; 11664 phba->sli.slistat.sli_intr = 0; 11665 } 11666 11667 /** 11668 * lpfc_unset_hba - Unset SLI3 hba device initialization 11669 * @phba: pointer to lpfc hba data structure. 11670 * 11671 * This routine is invoked to unset the HBA device initialization steps to 11672 * a device with SLI-3 interface spec. 11673 **/ 11674 static void 11675 lpfc_unset_hba(struct lpfc_hba *phba) 11676 { 11677 struct lpfc_vport *vport = phba->pport; 11678 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 11679 11680 spin_lock_irq(shost->host_lock); 11681 vport->load_flag |= FC_UNLOADING; 11682 spin_unlock_irq(shost->host_lock); 11683 11684 kfree(phba->vpi_bmask); 11685 kfree(phba->vpi_ids); 11686 11687 lpfc_stop_hba_timers(phba); 11688 11689 phba->pport->work_port_events = 0; 11690 11691 lpfc_sli_hba_down(phba); 11692 11693 lpfc_sli_brdrestart(phba); 11694 11695 lpfc_sli_disable_intr(phba); 11696 11697 return; 11698 } 11699 11700 /** 11701 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 11702 * @phba: Pointer to HBA context object. 11703 * 11704 * This function is called in the SLI4 code path to wait for completion 11705 * of device's XRIs exchange busy. It will check the XRI exchange busy 11706 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 11707 * that, it will check the XRI exchange busy on outstanding FCP and ELS 11708 * I/Os every 30 seconds, log error message, and wait forever. Only when 11709 * all XRI exchange busy complete, the driver unload shall proceed with 11710 * invoking the function reset ioctl mailbox command to the CNA and the 11711 * the rest of the driver unload resource release. 11712 **/ 11713 static void 11714 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 11715 { 11716 struct lpfc_sli4_hdw_queue *qp; 11717 int idx, ccnt; 11718 int wait_time = 0; 11719 int io_xri_cmpl = 1; 11720 int nvmet_xri_cmpl = 1; 11721 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 11722 11723 /* Driver just aborted IOs during the hba_unset process. Pause 11724 * here to give the HBA time to complete the IO and get entries 11725 * into the abts lists. 11726 */ 11727 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5); 11728 11729 /* Wait for NVME pending IO to flush back to transport. */ 11730 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 11731 lpfc_nvme_wait_for_io_drain(phba); 11732 11733 ccnt = 0; 11734 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 11735 qp = &phba->sli4_hba.hdwq[idx]; 11736 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list); 11737 if (!io_xri_cmpl) /* if list is NOT empty */ 11738 ccnt++; 11739 } 11740 if (ccnt) 11741 io_xri_cmpl = 0; 11742 11743 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11744 nvmet_xri_cmpl = 11745 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 11746 } 11747 11748 while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) { 11749 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 11750 if (!nvmet_xri_cmpl) 11751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11752 "6424 NVMET XRI exchange busy " 11753 "wait time: %d seconds.\n", 11754 wait_time/1000); 11755 if (!io_xri_cmpl) 11756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11757 "6100 IO XRI exchange busy " 11758 "wait time: %d seconds.\n", 11759 wait_time/1000); 11760 if (!els_xri_cmpl) 11761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11762 "2878 ELS XRI exchange busy " 11763 "wait time: %d seconds.\n", 11764 wait_time/1000); 11765 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 11766 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 11767 } else { 11768 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 11769 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 11770 } 11771 11772 ccnt = 0; 11773 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) { 11774 qp = &phba->sli4_hba.hdwq[idx]; 11775 io_xri_cmpl = list_empty( 11776 &qp->lpfc_abts_io_buf_list); 11777 if (!io_xri_cmpl) /* if list is NOT empty */ 11778 ccnt++; 11779 } 11780 if (ccnt) 11781 io_xri_cmpl = 0; 11782 11783 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11784 nvmet_xri_cmpl = list_empty( 11785 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 11786 } 11787 els_xri_cmpl = 11788 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 11789 11790 } 11791 } 11792 11793 /** 11794 * lpfc_sli4_hba_unset - Unset the fcoe hba 11795 * @phba: Pointer to HBA context object. 11796 * 11797 * This function is called in the SLI4 code path to reset the HBA's FCoE 11798 * function. The caller is not required to hold any lock. This routine 11799 * issues PCI function reset mailbox command to reset the FCoE function. 11800 * At the end of the function, it calls lpfc_hba_down_post function to 11801 * free any pending commands. 11802 **/ 11803 static void 11804 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 11805 { 11806 int wait_cnt = 0; 11807 LPFC_MBOXQ_t *mboxq; 11808 struct pci_dev *pdev = phba->pcidev; 11809 11810 lpfc_stop_hba_timers(phba); 11811 if (phba->pport) 11812 phba->sli4_hba.intr_enable = 0; 11813 11814 /* 11815 * Gracefully wait out the potential current outstanding asynchronous 11816 * mailbox command. 11817 */ 11818 11819 /* First, block any pending async mailbox command from posted */ 11820 spin_lock_irq(&phba->hbalock); 11821 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 11822 spin_unlock_irq(&phba->hbalock); 11823 /* Now, trying to wait it out if we can */ 11824 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 11825 msleep(10); 11826 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 11827 break; 11828 } 11829 /* Forcefully release the outstanding mailbox command if timed out */ 11830 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 11831 spin_lock_irq(&phba->hbalock); 11832 mboxq = phba->sli.mbox_active; 11833 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 11834 __lpfc_mbox_cmpl_put(phba, mboxq); 11835 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 11836 phba->sli.mbox_active = NULL; 11837 spin_unlock_irq(&phba->hbalock); 11838 } 11839 11840 /* Abort all iocbs associated with the hba */ 11841 lpfc_sli_hba_iocb_abort(phba); 11842 11843 /* Wait for completion of device XRI exchange busy */ 11844 lpfc_sli4_xri_exchange_busy_wait(phba); 11845 11846 /* per-phba callback de-registration for hotplug event */ 11847 lpfc_cpuhp_remove(phba); 11848 11849 /* Disable PCI subsystem interrupt */ 11850 lpfc_sli4_disable_intr(phba); 11851 11852 /* Disable SR-IOV if enabled */ 11853 if (phba->cfg_sriov_nr_virtfn) 11854 pci_disable_sriov(pdev); 11855 11856 /* Stop kthread signal shall trigger work_done one more time */ 11857 kthread_stop(phba->worker_thread); 11858 11859 /* Disable FW logging to host memory */ 11860 lpfc_ras_stop_fwlog(phba); 11861 11862 /* Unset the queues shared with the hardware then release all 11863 * allocated resources. 11864 */ 11865 lpfc_sli4_queue_unset(phba); 11866 lpfc_sli4_queue_destroy(phba); 11867 11868 /* Reset SLI4 HBA FCoE function */ 11869 lpfc_pci_function_reset(phba); 11870 11871 /* Free RAS DMA memory */ 11872 if (phba->ras_fwlog.ras_enabled) 11873 lpfc_sli4_ras_dma_free(phba); 11874 11875 /* Stop the SLI4 device port */ 11876 if (phba->pport) 11877 phba->pport->work_port_events = 0; 11878 } 11879 11880 /** 11881 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 11882 * @phba: Pointer to HBA context object. 11883 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 11884 * 11885 * This function is called in the SLI4 code path to read the port's 11886 * sli4 capabilities. 11887 * 11888 * This function may be be called from any context that can block-wait 11889 * for the completion. The expectation is that this routine is called 11890 * typically from probe_one or from the online routine. 11891 **/ 11892 int 11893 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 11894 { 11895 int rc; 11896 struct lpfc_mqe *mqe; 11897 struct lpfc_pc_sli4_params *sli4_params; 11898 uint32_t mbox_tmo; 11899 11900 rc = 0; 11901 mqe = &mboxq->u.mqe; 11902 11903 /* Read the port's SLI4 Parameters port capabilities */ 11904 lpfc_pc_sli4_params(mboxq); 11905 if (!phba->sli4_hba.intr_enable) 11906 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 11907 else { 11908 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 11909 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 11910 } 11911 11912 if (unlikely(rc)) 11913 return 1; 11914 11915 sli4_params = &phba->sli4_hba.pc_sli4_params; 11916 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 11917 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 11918 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 11919 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 11920 &mqe->un.sli4_params); 11921 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 11922 &mqe->un.sli4_params); 11923 sli4_params->proto_types = mqe->un.sli4_params.word3; 11924 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 11925 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 11926 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 11927 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 11928 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 11929 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 11930 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 11931 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 11932 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 11933 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 11934 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 11935 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 11936 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 11937 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 11938 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 11939 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 11940 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 11941 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 11942 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 11943 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 11944 11945 /* Make sure that sge_supp_len can be handled by the driver */ 11946 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 11947 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 11948 11949 return rc; 11950 } 11951 11952 /** 11953 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 11954 * @phba: Pointer to HBA context object. 11955 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 11956 * 11957 * This function is called in the SLI4 code path to read the port's 11958 * sli4 capabilities. 11959 * 11960 * This function may be be called from any context that can block-wait 11961 * for the completion. The expectation is that this routine is called 11962 * typically from probe_one or from the online routine. 11963 **/ 11964 int 11965 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 11966 { 11967 int rc; 11968 struct lpfc_mqe *mqe = &mboxq->u.mqe; 11969 struct lpfc_pc_sli4_params *sli4_params; 11970 uint32_t mbox_tmo; 11971 int length; 11972 bool exp_wqcq_pages = true; 11973 struct lpfc_sli4_parameters *mbx_sli4_parameters; 11974 11975 /* 11976 * By default, the driver assumes the SLI4 port requires RPI 11977 * header postings. The SLI4_PARAM response will correct this 11978 * assumption. 11979 */ 11980 phba->sli4_hba.rpi_hdrs_in_use = 1; 11981 11982 /* Read the port's SLI4 Config Parameters */ 11983 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 11984 sizeof(struct lpfc_sli4_cfg_mhdr)); 11985 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 11986 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 11987 length, LPFC_SLI4_MBX_EMBED); 11988 if (!phba->sli4_hba.intr_enable) 11989 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 11990 else { 11991 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 11992 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 11993 } 11994 if (unlikely(rc)) 11995 return rc; 11996 sli4_params = &phba->sli4_hba.pc_sli4_params; 11997 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 11998 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 11999 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 12000 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 12001 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 12002 mbx_sli4_parameters); 12003 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 12004 mbx_sli4_parameters); 12005 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 12006 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 12007 else 12008 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 12009 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 12010 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 12011 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 12012 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 12013 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 12014 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 12015 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 12016 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters); 12017 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters); 12018 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 12019 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters); 12020 sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters); 12021 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 12022 mbx_sli4_parameters); 12023 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 12024 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 12025 mbx_sli4_parameters); 12026 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 12027 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 12028 12029 /* Check for Extended Pre-Registered SGL support */ 12030 phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters); 12031 12032 /* Check for firmware nvme support */ 12033 rc = (bf_get(cfg_nvme, mbx_sli4_parameters) && 12034 bf_get(cfg_xib, mbx_sli4_parameters)); 12035 12036 if (rc) { 12037 /* Save this to indicate the Firmware supports NVME */ 12038 sli4_params->nvme = 1; 12039 12040 /* Firmware NVME support, check driver FC4 NVME support */ 12041 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) { 12042 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, 12043 "6133 Disabling NVME support: " 12044 "FC4 type not supported: x%x\n", 12045 phba->cfg_enable_fc4_type); 12046 goto fcponly; 12047 } 12048 } else { 12049 /* No firmware NVME support, check driver FC4 NVME support */ 12050 sli4_params->nvme = 0; 12051 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 12052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 12053 "6101 Disabling NVME support: Not " 12054 "supported by firmware (%d %d) x%x\n", 12055 bf_get(cfg_nvme, mbx_sli4_parameters), 12056 bf_get(cfg_xib, mbx_sli4_parameters), 12057 phba->cfg_enable_fc4_type); 12058 fcponly: 12059 phba->nvme_support = 0; 12060 phba->nvmet_support = 0; 12061 phba->cfg_nvmet_mrq = 0; 12062 phba->cfg_nvme_seg_cnt = 0; 12063 12064 /* If no FC4 type support, move to just SCSI support */ 12065 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 12066 return -ENODEV; 12067 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 12068 } 12069 } 12070 12071 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to 12072 * accommodate 512K and 1M IOs in a single nvme buf. 12073 */ 12074 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 12075 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 12076 12077 /* Only embed PBDE for if_type 6, PBDE support requires xib be set */ 12078 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 12079 LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters))) 12080 phba->cfg_enable_pbde = 0; 12081 12082 /* 12083 * To support Suppress Response feature we must satisfy 3 conditions. 12084 * lpfc_suppress_rsp module parameter must be set (default). 12085 * In SLI4-Parameters Descriptor: 12086 * Extended Inline Buffers (XIB) must be supported. 12087 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported 12088 * (double negative). 12089 */ 12090 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) && 12091 !(bf_get(cfg_nosr, mbx_sli4_parameters))) 12092 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 12093 else 12094 phba->cfg_suppress_rsp = 0; 12095 12096 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 12097 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 12098 12099 /* Make sure that sge_supp_len can be handled by the driver */ 12100 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 12101 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 12102 12103 /* 12104 * Check whether the adapter supports an embedded copy of the 12105 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order 12106 * to use this option, 128-byte WQEs must be used. 12107 */ 12108 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 12109 phba->fcp_embed_io = 1; 12110 else 12111 phba->fcp_embed_io = 0; 12112 12113 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, 12114 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n", 12115 bf_get(cfg_xib, mbx_sli4_parameters), 12116 phba->cfg_enable_pbde, 12117 phba->fcp_embed_io, phba->nvme_support, 12118 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp); 12119 12120 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 12121 LPFC_SLI_INTF_IF_TYPE_2) && 12122 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) == 12123 LPFC_SLI_INTF_FAMILY_LNCR_A0)) 12124 exp_wqcq_pages = false; 12125 12126 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) && 12127 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) && 12128 exp_wqcq_pages && 12129 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT)) 12130 phba->enab_exp_wqcq_pages = 1; 12131 else 12132 phba->enab_exp_wqcq_pages = 0; 12133 /* 12134 * Check if the SLI port supports MDS Diagnostics 12135 */ 12136 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 12137 phba->mds_diags_support = 1; 12138 else 12139 phba->mds_diags_support = 0; 12140 12141 /* 12142 * Check if the SLI port supports NSLER 12143 */ 12144 if (bf_get(cfg_nsler, mbx_sli4_parameters)) 12145 phba->nsler = 1; 12146 else 12147 phba->nsler = 0; 12148 12149 return 0; 12150 } 12151 12152 /** 12153 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 12154 * @pdev: pointer to PCI device 12155 * @pid: pointer to PCI device identifier 12156 * 12157 * This routine is to be called to attach a device with SLI-3 interface spec 12158 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 12159 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 12160 * information of the device and driver to see if the driver state that it can 12161 * support this kind of device. If the match is successful, the driver core 12162 * invokes this routine. If this routine determines it can claim the HBA, it 12163 * does all the initialization that it needs to do to handle the HBA properly. 12164 * 12165 * Return code 12166 * 0 - driver can claim the device 12167 * negative value - driver can not claim the device 12168 **/ 12169 static int 12170 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 12171 { 12172 struct lpfc_hba *phba; 12173 struct lpfc_vport *vport = NULL; 12174 struct Scsi_Host *shost = NULL; 12175 int error; 12176 uint32_t cfg_mode, intr_mode; 12177 12178 /* Allocate memory for HBA structure */ 12179 phba = lpfc_hba_alloc(pdev); 12180 if (!phba) 12181 return -ENOMEM; 12182 12183 /* Perform generic PCI device enabling operation */ 12184 error = lpfc_enable_pci_dev(phba); 12185 if (error) 12186 goto out_free_phba; 12187 12188 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 12189 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 12190 if (error) 12191 goto out_disable_pci_dev; 12192 12193 /* Set up SLI-3 specific device PCI memory space */ 12194 error = lpfc_sli_pci_mem_setup(phba); 12195 if (error) { 12196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12197 "1402 Failed to set up pci memory space.\n"); 12198 goto out_disable_pci_dev; 12199 } 12200 12201 /* Set up SLI-3 specific device driver resources */ 12202 error = lpfc_sli_driver_resource_setup(phba); 12203 if (error) { 12204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12205 "1404 Failed to set up driver resource.\n"); 12206 goto out_unset_pci_mem_s3; 12207 } 12208 12209 /* Initialize and populate the iocb list per host */ 12210 12211 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 12212 if (error) { 12213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12214 "1405 Failed to initialize iocb list.\n"); 12215 goto out_unset_driver_resource_s3; 12216 } 12217 12218 /* Set up common device driver resources */ 12219 error = lpfc_setup_driver_resource_phase2(phba); 12220 if (error) { 12221 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12222 "1406 Failed to set up driver resource.\n"); 12223 goto out_free_iocb_list; 12224 } 12225 12226 /* Get the default values for Model Name and Description */ 12227 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 12228 12229 /* Create SCSI host to the physical port */ 12230 error = lpfc_create_shost(phba); 12231 if (error) { 12232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12233 "1407 Failed to create scsi host.\n"); 12234 goto out_unset_driver_resource; 12235 } 12236 12237 /* Configure sysfs attributes */ 12238 vport = phba->pport; 12239 error = lpfc_alloc_sysfs_attr(vport); 12240 if (error) { 12241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12242 "1476 Failed to allocate sysfs attr\n"); 12243 goto out_destroy_shost; 12244 } 12245 12246 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 12247 /* Now, trying to enable interrupt and bring up the device */ 12248 cfg_mode = phba->cfg_use_msi; 12249 while (true) { 12250 /* Put device to a known state before enabling interrupt */ 12251 lpfc_stop_port(phba); 12252 /* Configure and enable interrupt */ 12253 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 12254 if (intr_mode == LPFC_INTR_ERROR) { 12255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12256 "0431 Failed to enable interrupt.\n"); 12257 error = -ENODEV; 12258 goto out_free_sysfs_attr; 12259 } 12260 /* SLI-3 HBA setup */ 12261 if (lpfc_sli_hba_setup(phba)) { 12262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12263 "1477 Failed to set up hba\n"); 12264 error = -ENODEV; 12265 goto out_remove_device; 12266 } 12267 12268 /* Wait 50ms for the interrupts of previous mailbox commands */ 12269 msleep(50); 12270 /* Check active interrupts on message signaled interrupts */ 12271 if (intr_mode == 0 || 12272 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 12273 /* Log the current active interrupt mode */ 12274 phba->intr_mode = intr_mode; 12275 lpfc_log_intr_mode(phba, intr_mode); 12276 break; 12277 } else { 12278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 12279 "0447 Configure interrupt mode (%d) " 12280 "failed active interrupt test.\n", 12281 intr_mode); 12282 /* Disable the current interrupt mode */ 12283 lpfc_sli_disable_intr(phba); 12284 /* Try next level of interrupt mode */ 12285 cfg_mode = --intr_mode; 12286 } 12287 } 12288 12289 /* Perform post initialization setup */ 12290 lpfc_post_init_setup(phba); 12291 12292 /* Check if there are static vports to be created. */ 12293 lpfc_create_static_vport(phba); 12294 12295 return 0; 12296 12297 out_remove_device: 12298 lpfc_unset_hba(phba); 12299 out_free_sysfs_attr: 12300 lpfc_free_sysfs_attr(vport); 12301 out_destroy_shost: 12302 lpfc_destroy_shost(phba); 12303 out_unset_driver_resource: 12304 lpfc_unset_driver_resource_phase2(phba); 12305 out_free_iocb_list: 12306 lpfc_free_iocb_list(phba); 12307 out_unset_driver_resource_s3: 12308 lpfc_sli_driver_resource_unset(phba); 12309 out_unset_pci_mem_s3: 12310 lpfc_sli_pci_mem_unset(phba); 12311 out_disable_pci_dev: 12312 lpfc_disable_pci_dev(phba); 12313 if (shost) 12314 scsi_host_put(shost); 12315 out_free_phba: 12316 lpfc_hba_free(phba); 12317 return error; 12318 } 12319 12320 /** 12321 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 12322 * @pdev: pointer to PCI device 12323 * 12324 * This routine is to be called to disattach a device with SLI-3 interface 12325 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 12326 * removed from PCI bus, it performs all the necessary cleanup for the HBA 12327 * device to be removed from the PCI subsystem properly. 12328 **/ 12329 static void 12330 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 12331 { 12332 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12333 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 12334 struct lpfc_vport **vports; 12335 struct lpfc_hba *phba = vport->phba; 12336 int i; 12337 12338 spin_lock_irq(&phba->hbalock); 12339 vport->load_flag |= FC_UNLOADING; 12340 spin_unlock_irq(&phba->hbalock); 12341 12342 lpfc_free_sysfs_attr(vport); 12343 12344 /* Release all the vports against this physical port */ 12345 vports = lpfc_create_vport_work_array(phba); 12346 if (vports != NULL) 12347 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 12348 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 12349 continue; 12350 fc_vport_terminate(vports[i]->fc_vport); 12351 } 12352 lpfc_destroy_vport_work_array(phba, vports); 12353 12354 /* Remove FC host and then SCSI host with the physical port */ 12355 fc_remove_host(shost); 12356 scsi_remove_host(shost); 12357 12358 lpfc_cleanup(vport); 12359 12360 /* 12361 * Bring down the SLI Layer. This step disable all interrupts, 12362 * clears the rings, discards all mailbox commands, and resets 12363 * the HBA. 12364 */ 12365 12366 /* HBA interrupt will be disabled after this call */ 12367 lpfc_sli_hba_down(phba); 12368 /* Stop kthread signal shall trigger work_done one more time */ 12369 kthread_stop(phba->worker_thread); 12370 /* Final cleanup of txcmplq and reset the HBA */ 12371 lpfc_sli_brdrestart(phba); 12372 12373 kfree(phba->vpi_bmask); 12374 kfree(phba->vpi_ids); 12375 12376 lpfc_stop_hba_timers(phba); 12377 spin_lock_irq(&phba->port_list_lock); 12378 list_del_init(&vport->listentry); 12379 spin_unlock_irq(&phba->port_list_lock); 12380 12381 lpfc_debugfs_terminate(vport); 12382 12383 /* Disable SR-IOV if enabled */ 12384 if (phba->cfg_sriov_nr_virtfn) 12385 pci_disable_sriov(pdev); 12386 12387 /* Disable interrupt */ 12388 lpfc_sli_disable_intr(phba); 12389 12390 scsi_host_put(shost); 12391 12392 /* 12393 * Call scsi_free before mem_free since scsi bufs are released to their 12394 * corresponding pools here. 12395 */ 12396 lpfc_scsi_free(phba); 12397 lpfc_free_iocb_list(phba); 12398 12399 lpfc_mem_free_all(phba); 12400 12401 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 12402 phba->hbqslimp.virt, phba->hbqslimp.phys); 12403 12404 /* Free resources associated with SLI2 interface */ 12405 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 12406 phba->slim2p.virt, phba->slim2p.phys); 12407 12408 /* unmap adapter SLIM and Control Registers */ 12409 iounmap(phba->ctrl_regs_memmap_p); 12410 iounmap(phba->slim_memmap_p); 12411 12412 lpfc_hba_free(phba); 12413 12414 pci_release_mem_regions(pdev); 12415 pci_disable_device(pdev); 12416 } 12417 12418 /** 12419 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 12420 * @pdev: pointer to PCI device 12421 * @msg: power management message 12422 * 12423 * This routine is to be called from the kernel's PCI subsystem to support 12424 * system Power Management (PM) to device with SLI-3 interface spec. When 12425 * PM invokes this method, it quiesces the device by stopping the driver's 12426 * worker thread for the device, turning off device's interrupt and DMA, 12427 * and bring the device offline. Note that as the driver implements the 12428 * minimum PM requirements to a power-aware driver's PM support for the 12429 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 12430 * to the suspend() method call will be treated as SUSPEND and the driver will 12431 * fully reinitialize its device during resume() method call, the driver will 12432 * set device to PCI_D3hot state in PCI config space instead of setting it 12433 * according to the @msg provided by the PM. 12434 * 12435 * Return code 12436 * 0 - driver suspended the device 12437 * Error otherwise 12438 **/ 12439 static int 12440 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 12441 { 12442 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12443 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12444 12445 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 12446 "0473 PCI device Power Management suspend.\n"); 12447 12448 /* Bring down the device */ 12449 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 12450 lpfc_offline(phba); 12451 kthread_stop(phba->worker_thread); 12452 12453 /* Disable interrupt from device */ 12454 lpfc_sli_disable_intr(phba); 12455 12456 /* Save device state to PCI config space */ 12457 pci_save_state(pdev); 12458 pci_set_power_state(pdev, PCI_D3hot); 12459 12460 return 0; 12461 } 12462 12463 /** 12464 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 12465 * @pdev: pointer to PCI device 12466 * 12467 * This routine is to be called from the kernel's PCI subsystem to support 12468 * system Power Management (PM) to device with SLI-3 interface spec. When PM 12469 * invokes this method, it restores the device's PCI config space state and 12470 * fully reinitializes the device and brings it online. Note that as the 12471 * driver implements the minimum PM requirements to a power-aware driver's 12472 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 12473 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 12474 * driver will fully reinitialize its device during resume() method call, 12475 * the device will be set to PCI_D0 directly in PCI config space before 12476 * restoring the state. 12477 * 12478 * Return code 12479 * 0 - driver suspended the device 12480 * Error otherwise 12481 **/ 12482 static int 12483 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 12484 { 12485 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12486 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12487 uint32_t intr_mode; 12488 int error; 12489 12490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 12491 "0452 PCI device Power Management resume.\n"); 12492 12493 /* Restore device state from PCI config space */ 12494 pci_set_power_state(pdev, PCI_D0); 12495 pci_restore_state(pdev); 12496 12497 /* 12498 * As the new kernel behavior of pci_restore_state() API call clears 12499 * device saved_state flag, need to save the restored state again. 12500 */ 12501 pci_save_state(pdev); 12502 12503 if (pdev->is_busmaster) 12504 pci_set_master(pdev); 12505 12506 /* Startup the kernel thread for this host adapter. */ 12507 phba->worker_thread = kthread_run(lpfc_do_work, phba, 12508 "lpfc_worker_%d", phba->brd_no); 12509 if (IS_ERR(phba->worker_thread)) { 12510 error = PTR_ERR(phba->worker_thread); 12511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12512 "0434 PM resume failed to start worker " 12513 "thread: error=x%x.\n", error); 12514 return error; 12515 } 12516 12517 /* Configure and enable interrupt */ 12518 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 12519 if (intr_mode == LPFC_INTR_ERROR) { 12520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12521 "0430 PM resume Failed to enable interrupt\n"); 12522 return -EIO; 12523 } else 12524 phba->intr_mode = intr_mode; 12525 12526 /* Restart HBA and bring it online */ 12527 lpfc_sli_brdrestart(phba); 12528 lpfc_online(phba); 12529 12530 /* Log the current active interrupt mode */ 12531 lpfc_log_intr_mode(phba, phba->intr_mode); 12532 12533 return 0; 12534 } 12535 12536 /** 12537 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 12538 * @phba: pointer to lpfc hba data structure. 12539 * 12540 * This routine is called to prepare the SLI3 device for PCI slot recover. It 12541 * aborts all the outstanding SCSI I/Os to the pci device. 12542 **/ 12543 static void 12544 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 12545 { 12546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12547 "2723 PCI channel I/O abort preparing for recovery\n"); 12548 12549 /* 12550 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 12551 * and let the SCSI mid-layer to retry them to recover. 12552 */ 12553 lpfc_sli_abort_fcp_rings(phba); 12554 } 12555 12556 /** 12557 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 12558 * @phba: pointer to lpfc hba data structure. 12559 * 12560 * This routine is called to prepare the SLI3 device for PCI slot reset. It 12561 * disables the device interrupt and pci device, and aborts the internal FCP 12562 * pending I/Os. 12563 **/ 12564 static void 12565 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 12566 { 12567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12568 "2710 PCI channel disable preparing for reset\n"); 12569 12570 /* Block any management I/Os to the device */ 12571 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 12572 12573 /* Block all SCSI devices' I/Os on the host */ 12574 lpfc_scsi_dev_block(phba); 12575 12576 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 12577 lpfc_sli_flush_io_rings(phba); 12578 12579 /* stop all timers */ 12580 lpfc_stop_hba_timers(phba); 12581 12582 /* Disable interrupt and pci device */ 12583 lpfc_sli_disable_intr(phba); 12584 pci_disable_device(phba->pcidev); 12585 } 12586 12587 /** 12588 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 12589 * @phba: pointer to lpfc hba data structure. 12590 * 12591 * This routine is called to prepare the SLI3 device for PCI slot permanently 12592 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 12593 * pending I/Os. 12594 **/ 12595 static void 12596 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 12597 { 12598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12599 "2711 PCI channel permanent disable for failure\n"); 12600 /* Block all SCSI devices' I/Os on the host */ 12601 lpfc_scsi_dev_block(phba); 12602 12603 /* stop all timers */ 12604 lpfc_stop_hba_timers(phba); 12605 12606 /* Clean up all driver's outstanding SCSI I/Os */ 12607 lpfc_sli_flush_io_rings(phba); 12608 } 12609 12610 /** 12611 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 12612 * @pdev: pointer to PCI device. 12613 * @state: the current PCI connection state. 12614 * 12615 * This routine is called from the PCI subsystem for I/O error handling to 12616 * device with SLI-3 interface spec. This function is called by the PCI 12617 * subsystem after a PCI bus error affecting this device has been detected. 12618 * When this function is invoked, it will need to stop all the I/Os and 12619 * interrupt(s) to the device. Once that is done, it will return 12620 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 12621 * as desired. 12622 * 12623 * Return codes 12624 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 12625 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 12626 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12627 **/ 12628 static pci_ers_result_t 12629 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 12630 { 12631 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12632 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12633 12634 switch (state) { 12635 case pci_channel_io_normal: 12636 /* Non-fatal error, prepare for recovery */ 12637 lpfc_sli_prep_dev_for_recover(phba); 12638 return PCI_ERS_RESULT_CAN_RECOVER; 12639 case pci_channel_io_frozen: 12640 /* Fatal error, prepare for slot reset */ 12641 lpfc_sli_prep_dev_for_reset(phba); 12642 return PCI_ERS_RESULT_NEED_RESET; 12643 case pci_channel_io_perm_failure: 12644 /* Permanent failure, prepare for device down */ 12645 lpfc_sli_prep_dev_for_perm_failure(phba); 12646 return PCI_ERS_RESULT_DISCONNECT; 12647 default: 12648 /* Unknown state, prepare and request slot reset */ 12649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12650 "0472 Unknown PCI error state: x%x\n", state); 12651 lpfc_sli_prep_dev_for_reset(phba); 12652 return PCI_ERS_RESULT_NEED_RESET; 12653 } 12654 } 12655 12656 /** 12657 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 12658 * @pdev: pointer to PCI device. 12659 * 12660 * This routine is called from the PCI subsystem for error handling to 12661 * device with SLI-3 interface spec. This is called after PCI bus has been 12662 * reset to restart the PCI card from scratch, as if from a cold-boot. 12663 * During the PCI subsystem error recovery, after driver returns 12664 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 12665 * recovery and then call this routine before calling the .resume method 12666 * to recover the device. This function will initialize the HBA device, 12667 * enable the interrupt, but it will just put the HBA to offline state 12668 * without passing any I/O traffic. 12669 * 12670 * Return codes 12671 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 12672 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12673 */ 12674 static pci_ers_result_t 12675 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 12676 { 12677 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12678 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12679 struct lpfc_sli *psli = &phba->sli; 12680 uint32_t intr_mode; 12681 12682 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 12683 if (pci_enable_device_mem(pdev)) { 12684 printk(KERN_ERR "lpfc: Cannot re-enable " 12685 "PCI device after reset.\n"); 12686 return PCI_ERS_RESULT_DISCONNECT; 12687 } 12688 12689 pci_restore_state(pdev); 12690 12691 /* 12692 * As the new kernel behavior of pci_restore_state() API call clears 12693 * device saved_state flag, need to save the restored state again. 12694 */ 12695 pci_save_state(pdev); 12696 12697 if (pdev->is_busmaster) 12698 pci_set_master(pdev); 12699 12700 spin_lock_irq(&phba->hbalock); 12701 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 12702 spin_unlock_irq(&phba->hbalock); 12703 12704 /* Configure and enable interrupt */ 12705 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 12706 if (intr_mode == LPFC_INTR_ERROR) { 12707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12708 "0427 Cannot re-enable interrupt after " 12709 "slot reset.\n"); 12710 return PCI_ERS_RESULT_DISCONNECT; 12711 } else 12712 phba->intr_mode = intr_mode; 12713 12714 /* Take device offline, it will perform cleanup */ 12715 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 12716 lpfc_offline(phba); 12717 lpfc_sli_brdrestart(phba); 12718 12719 /* Log the current active interrupt mode */ 12720 lpfc_log_intr_mode(phba, phba->intr_mode); 12721 12722 return PCI_ERS_RESULT_RECOVERED; 12723 } 12724 12725 /** 12726 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 12727 * @pdev: pointer to PCI device 12728 * 12729 * This routine is called from the PCI subsystem for error handling to device 12730 * with SLI-3 interface spec. It is called when kernel error recovery tells 12731 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 12732 * error recovery. After this call, traffic can start to flow from this device 12733 * again. 12734 */ 12735 static void 12736 lpfc_io_resume_s3(struct pci_dev *pdev) 12737 { 12738 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12739 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12740 12741 /* Bring device online, it will be no-op for non-fatal error resume */ 12742 lpfc_online(phba); 12743 } 12744 12745 /** 12746 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 12747 * @phba: pointer to lpfc hba data structure. 12748 * 12749 * returns the number of ELS/CT IOCBs to reserve 12750 **/ 12751 int 12752 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 12753 { 12754 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 12755 12756 if (phba->sli_rev == LPFC_SLI_REV4) { 12757 if (max_xri <= 100) 12758 return 10; 12759 else if (max_xri <= 256) 12760 return 25; 12761 else if (max_xri <= 512) 12762 return 50; 12763 else if (max_xri <= 1024) 12764 return 100; 12765 else if (max_xri <= 1536) 12766 return 150; 12767 else if (max_xri <= 2048) 12768 return 200; 12769 else 12770 return 250; 12771 } else 12772 return 0; 12773 } 12774 12775 /** 12776 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 12777 * @phba: pointer to lpfc hba data structure. 12778 * 12779 * returns the number of ELS/CT + NVMET IOCBs to reserve 12780 **/ 12781 int 12782 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 12783 { 12784 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 12785 12786 if (phba->nvmet_support) 12787 max_xri += LPFC_NVMET_BUF_POST; 12788 return max_xri; 12789 } 12790 12791 12792 static int 12793 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset, 12794 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize, 12795 const struct firmware *fw) 12796 { 12797 int rc; 12798 12799 /* Three cases: (1) FW was not supported on the detected adapter. 12800 * (2) FW update has been locked out administratively. 12801 * (3) Some other error during FW update. 12802 * In each case, an unmaskable message is written to the console 12803 * for admin diagnosis. 12804 */ 12805 if (offset == ADD_STATUS_FW_NOT_SUPPORTED || 12806 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC && 12807 magic_number != MAGIC_NUMBER_G6) || 12808 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC && 12809 magic_number != MAGIC_NUMBER_G7)) { 12810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12811 "3030 This firmware version is not supported on" 12812 " this HBA model. Device:%x Magic:%x Type:%x " 12813 "ID:%x Size %d %zd\n", 12814 phba->pcidev->device, magic_number, ftype, fid, 12815 fsize, fw->size); 12816 rc = -EINVAL; 12817 } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) { 12818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12819 "3021 Firmware downloads have been prohibited " 12820 "by a system configuration setting on " 12821 "Device:%x Magic:%x Type:%x ID:%x Size %d " 12822 "%zd\n", 12823 phba->pcidev->device, magic_number, ftype, fid, 12824 fsize, fw->size); 12825 rc = -EACCES; 12826 } else { 12827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12828 "3022 FW Download failed. Add Status x%x " 12829 "Device:%x Magic:%x Type:%x ID:%x Size %d " 12830 "%zd\n", 12831 offset, phba->pcidev->device, magic_number, 12832 ftype, fid, fsize, fw->size); 12833 rc = -EIO; 12834 } 12835 return rc; 12836 } 12837 12838 /** 12839 * lpfc_write_firmware - attempt to write a firmware image to the port 12840 * @fw: pointer to firmware image returned from request_firmware. 12841 * @context: pointer to firmware image returned from request_firmware. 12842 * @ret: return value this routine provides to the caller. 12843 * 12844 **/ 12845 static void 12846 lpfc_write_firmware(const struct firmware *fw, void *context) 12847 { 12848 struct lpfc_hba *phba = (struct lpfc_hba *)context; 12849 char fwrev[FW_REV_STR_SIZE]; 12850 struct lpfc_grp_hdr *image; 12851 struct list_head dma_buffer_list; 12852 int i, rc = 0; 12853 struct lpfc_dmabuf *dmabuf, *next; 12854 uint32_t offset = 0, temp_offset = 0; 12855 uint32_t magic_number, ftype, fid, fsize; 12856 12857 /* It can be null in no-wait mode, sanity check */ 12858 if (!fw) { 12859 rc = -ENXIO; 12860 goto out; 12861 } 12862 image = (struct lpfc_grp_hdr *)fw->data; 12863 12864 magic_number = be32_to_cpu(image->magic_number); 12865 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 12866 fid = bf_get_be32(lpfc_grp_hdr_id, image); 12867 fsize = be32_to_cpu(image->size); 12868 12869 INIT_LIST_HEAD(&dma_buffer_list); 12870 lpfc_decode_firmware_rev(phba, fwrev, 1); 12871 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 12872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12873 "3023 Updating Firmware, Current Version:%s " 12874 "New Version:%s\n", 12875 fwrev, image->revision); 12876 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 12877 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 12878 GFP_KERNEL); 12879 if (!dmabuf) { 12880 rc = -ENOMEM; 12881 goto release_out; 12882 } 12883 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 12884 SLI4_PAGE_SIZE, 12885 &dmabuf->phys, 12886 GFP_KERNEL); 12887 if (!dmabuf->virt) { 12888 kfree(dmabuf); 12889 rc = -ENOMEM; 12890 goto release_out; 12891 } 12892 list_add_tail(&dmabuf->list, &dma_buffer_list); 12893 } 12894 while (offset < fw->size) { 12895 temp_offset = offset; 12896 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 12897 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 12898 memcpy(dmabuf->virt, 12899 fw->data + temp_offset, 12900 fw->size - temp_offset); 12901 temp_offset = fw->size; 12902 break; 12903 } 12904 memcpy(dmabuf->virt, fw->data + temp_offset, 12905 SLI4_PAGE_SIZE); 12906 temp_offset += SLI4_PAGE_SIZE; 12907 } 12908 rc = lpfc_wr_object(phba, &dma_buffer_list, 12909 (fw->size - offset), &offset); 12910 if (rc) { 12911 rc = lpfc_log_write_firmware_error(phba, offset, 12912 magic_number, 12913 ftype, 12914 fid, 12915 fsize, 12916 fw); 12917 goto release_out; 12918 } 12919 } 12920 rc = offset; 12921 } else 12922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12923 "3029 Skipped Firmware update, Current " 12924 "Version:%s New Version:%s\n", 12925 fwrev, image->revision); 12926 12927 release_out: 12928 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 12929 list_del(&dmabuf->list); 12930 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 12931 dmabuf->virt, dmabuf->phys); 12932 kfree(dmabuf); 12933 } 12934 release_firmware(fw); 12935 out: 12936 if (rc < 0) 12937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12938 "3062 Firmware update error, status %d.\n", rc); 12939 else 12940 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12941 "3024 Firmware update success: size %d.\n", rc); 12942 } 12943 12944 /** 12945 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 12946 * @phba: pointer to lpfc hba data structure. 12947 * 12948 * This routine is called to perform Linux generic firmware upgrade on device 12949 * that supports such feature. 12950 **/ 12951 int 12952 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 12953 { 12954 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 12955 int ret; 12956 const struct firmware *fw; 12957 12958 /* Only supported on SLI4 interface type 2 for now */ 12959 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 12960 LPFC_SLI_INTF_IF_TYPE_2) 12961 return -EPERM; 12962 12963 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 12964 12965 if (fw_upgrade == INT_FW_UPGRADE) { 12966 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 12967 file_name, &phba->pcidev->dev, 12968 GFP_KERNEL, (void *)phba, 12969 lpfc_write_firmware); 12970 } else if (fw_upgrade == RUN_FW_UPGRADE) { 12971 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 12972 if (!ret) 12973 lpfc_write_firmware(fw, (void *)phba); 12974 } else { 12975 ret = -EINVAL; 12976 } 12977 12978 return ret; 12979 } 12980 12981 /** 12982 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 12983 * @pdev: pointer to PCI device 12984 * @pid: pointer to PCI device identifier 12985 * 12986 * This routine is called from the kernel's PCI subsystem to device with 12987 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 12988 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 12989 * information of the device and driver to see if the driver state that it 12990 * can support this kind of device. If the match is successful, the driver 12991 * core invokes this routine. If this routine determines it can claim the HBA, 12992 * it does all the initialization that it needs to do to handle the HBA 12993 * properly. 12994 * 12995 * Return code 12996 * 0 - driver can claim the device 12997 * negative value - driver can not claim the device 12998 **/ 12999 static int 13000 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 13001 { 13002 struct lpfc_hba *phba; 13003 struct lpfc_vport *vport = NULL; 13004 struct Scsi_Host *shost = NULL; 13005 int error; 13006 uint32_t cfg_mode, intr_mode; 13007 13008 /* Allocate memory for HBA structure */ 13009 phba = lpfc_hba_alloc(pdev); 13010 if (!phba) 13011 return -ENOMEM; 13012 13013 /* Perform generic PCI device enabling operation */ 13014 error = lpfc_enable_pci_dev(phba); 13015 if (error) 13016 goto out_free_phba; 13017 13018 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 13019 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 13020 if (error) 13021 goto out_disable_pci_dev; 13022 13023 /* Set up SLI-4 specific device PCI memory space */ 13024 error = lpfc_sli4_pci_mem_setup(phba); 13025 if (error) { 13026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13027 "1410 Failed to set up pci memory space.\n"); 13028 goto out_disable_pci_dev; 13029 } 13030 13031 /* Set up SLI-4 Specific device driver resources */ 13032 error = lpfc_sli4_driver_resource_setup(phba); 13033 if (error) { 13034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13035 "1412 Failed to set up driver resource.\n"); 13036 goto out_unset_pci_mem_s4; 13037 } 13038 13039 INIT_LIST_HEAD(&phba->active_rrq_list); 13040 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 13041 13042 /* Set up common device driver resources */ 13043 error = lpfc_setup_driver_resource_phase2(phba); 13044 if (error) { 13045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13046 "1414 Failed to set up driver resource.\n"); 13047 goto out_unset_driver_resource_s4; 13048 } 13049 13050 /* Get the default values for Model Name and Description */ 13051 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 13052 13053 /* Now, trying to enable interrupt and bring up the device */ 13054 cfg_mode = phba->cfg_use_msi; 13055 13056 /* Put device to a known state before enabling interrupt */ 13057 phba->pport = NULL; 13058 lpfc_stop_port(phba); 13059 13060 /* Init cpu_map array */ 13061 lpfc_cpu_map_array_init(phba); 13062 13063 /* Init hba_eq_hdl array */ 13064 lpfc_hba_eq_hdl_array_init(phba); 13065 13066 /* Configure and enable interrupt */ 13067 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 13068 if (intr_mode == LPFC_INTR_ERROR) { 13069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13070 "0426 Failed to enable interrupt.\n"); 13071 error = -ENODEV; 13072 goto out_unset_driver_resource; 13073 } 13074 /* Default to single EQ for non-MSI-X */ 13075 if (phba->intr_type != MSIX) { 13076 phba->cfg_irq_chann = 1; 13077 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 13078 if (phba->nvmet_support) 13079 phba->cfg_nvmet_mrq = 1; 13080 } 13081 } 13082 lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann); 13083 13084 /* Create SCSI host to the physical port */ 13085 error = lpfc_create_shost(phba); 13086 if (error) { 13087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13088 "1415 Failed to create scsi host.\n"); 13089 goto out_disable_intr; 13090 } 13091 vport = phba->pport; 13092 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 13093 13094 /* Configure sysfs attributes */ 13095 error = lpfc_alloc_sysfs_attr(vport); 13096 if (error) { 13097 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13098 "1416 Failed to allocate sysfs attr\n"); 13099 goto out_destroy_shost; 13100 } 13101 13102 /* Set up SLI-4 HBA */ 13103 if (lpfc_sli4_hba_setup(phba)) { 13104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13105 "1421 Failed to set up hba\n"); 13106 error = -ENODEV; 13107 goto out_free_sysfs_attr; 13108 } 13109 13110 /* Log the current active interrupt mode */ 13111 phba->intr_mode = intr_mode; 13112 lpfc_log_intr_mode(phba, intr_mode); 13113 13114 /* Perform post initialization setup */ 13115 lpfc_post_init_setup(phba); 13116 13117 /* NVME support in FW earlier in the driver load corrects the 13118 * FC4 type making a check for nvme_support unnecessary. 13119 */ 13120 if (phba->nvmet_support == 0) { 13121 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 13122 /* Create NVME binding with nvme_fc_transport. This 13123 * ensures the vport is initialized. If the localport 13124 * create fails, it should not unload the driver to 13125 * support field issues. 13126 */ 13127 error = lpfc_nvme_create_localport(vport); 13128 if (error) { 13129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13130 "6004 NVME registration " 13131 "failed, error x%x\n", 13132 error); 13133 } 13134 } 13135 } 13136 13137 /* check for firmware upgrade or downgrade */ 13138 if (phba->cfg_request_firmware_upgrade) 13139 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 13140 13141 /* Check if there are static vports to be created. */ 13142 lpfc_create_static_vport(phba); 13143 13144 /* Enable RAS FW log support */ 13145 lpfc_sli4_ras_setup(phba); 13146 13147 INIT_LIST_HEAD(&phba->poll_list); 13148 cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp); 13149 13150 return 0; 13151 13152 out_free_sysfs_attr: 13153 lpfc_free_sysfs_attr(vport); 13154 out_destroy_shost: 13155 lpfc_destroy_shost(phba); 13156 out_disable_intr: 13157 lpfc_sli4_disable_intr(phba); 13158 out_unset_driver_resource: 13159 lpfc_unset_driver_resource_phase2(phba); 13160 out_unset_driver_resource_s4: 13161 lpfc_sli4_driver_resource_unset(phba); 13162 out_unset_pci_mem_s4: 13163 lpfc_sli4_pci_mem_unset(phba); 13164 out_disable_pci_dev: 13165 lpfc_disable_pci_dev(phba); 13166 if (shost) 13167 scsi_host_put(shost); 13168 out_free_phba: 13169 lpfc_hba_free(phba); 13170 return error; 13171 } 13172 13173 /** 13174 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 13175 * @pdev: pointer to PCI device 13176 * 13177 * This routine is called from the kernel's PCI subsystem to device with 13178 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 13179 * removed from PCI bus, it performs all the necessary cleanup for the HBA 13180 * device to be removed from the PCI subsystem properly. 13181 **/ 13182 static void 13183 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 13184 { 13185 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13186 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 13187 struct lpfc_vport **vports; 13188 struct lpfc_hba *phba = vport->phba; 13189 int i; 13190 13191 /* Mark the device unloading flag */ 13192 spin_lock_irq(&phba->hbalock); 13193 vport->load_flag |= FC_UNLOADING; 13194 spin_unlock_irq(&phba->hbalock); 13195 13196 /* Free the HBA sysfs attributes */ 13197 lpfc_free_sysfs_attr(vport); 13198 13199 /* Release all the vports against this physical port */ 13200 vports = lpfc_create_vport_work_array(phba); 13201 if (vports != NULL) 13202 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 13203 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 13204 continue; 13205 fc_vport_terminate(vports[i]->fc_vport); 13206 } 13207 lpfc_destroy_vport_work_array(phba, vports); 13208 13209 /* Remove FC host and then SCSI host with the physical port */ 13210 fc_remove_host(shost); 13211 scsi_remove_host(shost); 13212 13213 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 13214 * localports are destroyed after to cleanup all transport memory. 13215 */ 13216 lpfc_cleanup(vport); 13217 lpfc_nvmet_destroy_targetport(phba); 13218 lpfc_nvme_destroy_localport(vport); 13219 13220 /* De-allocate multi-XRI pools */ 13221 if (phba->cfg_xri_rebalancing) 13222 lpfc_destroy_multixri_pools(phba); 13223 13224 /* 13225 * Bring down the SLI Layer. This step disables all interrupts, 13226 * clears the rings, discards all mailbox commands, and resets 13227 * the HBA FCoE function. 13228 */ 13229 lpfc_debugfs_terminate(vport); 13230 13231 lpfc_stop_hba_timers(phba); 13232 spin_lock_irq(&phba->port_list_lock); 13233 list_del_init(&vport->listentry); 13234 spin_unlock_irq(&phba->port_list_lock); 13235 13236 /* Perform scsi free before driver resource_unset since scsi 13237 * buffers are released to their corresponding pools here. 13238 */ 13239 lpfc_io_free(phba); 13240 lpfc_free_iocb_list(phba); 13241 lpfc_sli4_hba_unset(phba); 13242 13243 lpfc_unset_driver_resource_phase2(phba); 13244 lpfc_sli4_driver_resource_unset(phba); 13245 13246 /* Unmap adapter Control and Doorbell registers */ 13247 lpfc_sli4_pci_mem_unset(phba); 13248 13249 /* Release PCI resources and disable device's PCI function */ 13250 scsi_host_put(shost); 13251 lpfc_disable_pci_dev(phba); 13252 13253 /* Finally, free the driver's device data structure */ 13254 lpfc_hba_free(phba); 13255 13256 return; 13257 } 13258 13259 /** 13260 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 13261 * @pdev: pointer to PCI device 13262 * @msg: power management message 13263 * 13264 * This routine is called from the kernel's PCI subsystem to support system 13265 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 13266 * this method, it quiesces the device by stopping the driver's worker 13267 * thread for the device, turning off device's interrupt and DMA, and bring 13268 * the device offline. Note that as the driver implements the minimum PM 13269 * requirements to a power-aware driver's PM support for suspend/resume -- all 13270 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 13271 * method call will be treated as SUSPEND and the driver will fully 13272 * reinitialize its device during resume() method call, the driver will set 13273 * device to PCI_D3hot state in PCI config space instead of setting it 13274 * according to the @msg provided by the PM. 13275 * 13276 * Return code 13277 * 0 - driver suspended the device 13278 * Error otherwise 13279 **/ 13280 static int 13281 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 13282 { 13283 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13284 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13285 13286 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 13287 "2843 PCI device Power Management suspend.\n"); 13288 13289 /* Bring down the device */ 13290 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 13291 lpfc_offline(phba); 13292 kthread_stop(phba->worker_thread); 13293 13294 /* Disable interrupt from device */ 13295 lpfc_sli4_disable_intr(phba); 13296 lpfc_sli4_queue_destroy(phba); 13297 13298 /* Save device state to PCI config space */ 13299 pci_save_state(pdev); 13300 pci_set_power_state(pdev, PCI_D3hot); 13301 13302 return 0; 13303 } 13304 13305 /** 13306 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 13307 * @pdev: pointer to PCI device 13308 * 13309 * This routine is called from the kernel's PCI subsystem to support system 13310 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 13311 * this method, it restores the device's PCI config space state and fully 13312 * reinitializes the device and brings it online. Note that as the driver 13313 * implements the minimum PM requirements to a power-aware driver's PM for 13314 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 13315 * to the suspend() method call will be treated as SUSPEND and the driver 13316 * will fully reinitialize its device during resume() method call, the device 13317 * will be set to PCI_D0 directly in PCI config space before restoring the 13318 * state. 13319 * 13320 * Return code 13321 * 0 - driver suspended the device 13322 * Error otherwise 13323 **/ 13324 static int 13325 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 13326 { 13327 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13328 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13329 uint32_t intr_mode; 13330 int error; 13331 13332 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 13333 "0292 PCI device Power Management resume.\n"); 13334 13335 /* Restore device state from PCI config space */ 13336 pci_set_power_state(pdev, PCI_D0); 13337 pci_restore_state(pdev); 13338 13339 /* 13340 * As the new kernel behavior of pci_restore_state() API call clears 13341 * device saved_state flag, need to save the restored state again. 13342 */ 13343 pci_save_state(pdev); 13344 13345 if (pdev->is_busmaster) 13346 pci_set_master(pdev); 13347 13348 /* Startup the kernel thread for this host adapter. */ 13349 phba->worker_thread = kthread_run(lpfc_do_work, phba, 13350 "lpfc_worker_%d", phba->brd_no); 13351 if (IS_ERR(phba->worker_thread)) { 13352 error = PTR_ERR(phba->worker_thread); 13353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13354 "0293 PM resume failed to start worker " 13355 "thread: error=x%x.\n", error); 13356 return error; 13357 } 13358 13359 /* Configure and enable interrupt */ 13360 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 13361 if (intr_mode == LPFC_INTR_ERROR) { 13362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13363 "0294 PM resume Failed to enable interrupt\n"); 13364 return -EIO; 13365 } else 13366 phba->intr_mode = intr_mode; 13367 13368 /* Restart HBA and bring it online */ 13369 lpfc_sli_brdrestart(phba); 13370 lpfc_online(phba); 13371 13372 /* Log the current active interrupt mode */ 13373 lpfc_log_intr_mode(phba, phba->intr_mode); 13374 13375 return 0; 13376 } 13377 13378 /** 13379 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 13380 * @phba: pointer to lpfc hba data structure. 13381 * 13382 * This routine is called to prepare the SLI4 device for PCI slot recover. It 13383 * aborts all the outstanding SCSI I/Os to the pci device. 13384 **/ 13385 static void 13386 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 13387 { 13388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13389 "2828 PCI channel I/O abort preparing for recovery\n"); 13390 /* 13391 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 13392 * and let the SCSI mid-layer to retry them to recover. 13393 */ 13394 lpfc_sli_abort_fcp_rings(phba); 13395 } 13396 13397 /** 13398 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 13399 * @phba: pointer to lpfc hba data structure. 13400 * 13401 * This routine is called to prepare the SLI4 device for PCI slot reset. It 13402 * disables the device interrupt and pci device, and aborts the internal FCP 13403 * pending I/Os. 13404 **/ 13405 static void 13406 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 13407 { 13408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13409 "2826 PCI channel disable preparing for reset\n"); 13410 13411 /* Block any management I/Os to the device */ 13412 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 13413 13414 /* Block all SCSI devices' I/Os on the host */ 13415 lpfc_scsi_dev_block(phba); 13416 13417 /* Flush all driver's outstanding I/Os as we are to reset */ 13418 lpfc_sli_flush_io_rings(phba); 13419 13420 /* stop all timers */ 13421 lpfc_stop_hba_timers(phba); 13422 13423 /* Disable interrupt and pci device */ 13424 lpfc_sli4_disable_intr(phba); 13425 lpfc_sli4_queue_destroy(phba); 13426 pci_disable_device(phba->pcidev); 13427 } 13428 13429 /** 13430 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 13431 * @phba: pointer to lpfc hba data structure. 13432 * 13433 * This routine is called to prepare the SLI4 device for PCI slot permanently 13434 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 13435 * pending I/Os. 13436 **/ 13437 static void 13438 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 13439 { 13440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13441 "2827 PCI channel permanent disable for failure\n"); 13442 13443 /* Block all SCSI devices' I/Os on the host */ 13444 lpfc_scsi_dev_block(phba); 13445 13446 /* stop all timers */ 13447 lpfc_stop_hba_timers(phba); 13448 13449 /* Clean up all driver's outstanding I/Os */ 13450 lpfc_sli_flush_io_rings(phba); 13451 } 13452 13453 /** 13454 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 13455 * @pdev: pointer to PCI device. 13456 * @state: the current PCI connection state. 13457 * 13458 * This routine is called from the PCI subsystem for error handling to device 13459 * with SLI-4 interface spec. This function is called by the PCI subsystem 13460 * after a PCI bus error affecting this device has been detected. When this 13461 * function is invoked, it will need to stop all the I/Os and interrupt(s) 13462 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 13463 * for the PCI subsystem to perform proper recovery as desired. 13464 * 13465 * Return codes 13466 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 13467 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 13468 **/ 13469 static pci_ers_result_t 13470 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 13471 { 13472 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13473 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13474 13475 switch (state) { 13476 case pci_channel_io_normal: 13477 /* Non-fatal error, prepare for recovery */ 13478 lpfc_sli4_prep_dev_for_recover(phba); 13479 return PCI_ERS_RESULT_CAN_RECOVER; 13480 case pci_channel_io_frozen: 13481 /* Fatal error, prepare for slot reset */ 13482 lpfc_sli4_prep_dev_for_reset(phba); 13483 return PCI_ERS_RESULT_NEED_RESET; 13484 case pci_channel_io_perm_failure: 13485 /* Permanent failure, prepare for device down */ 13486 lpfc_sli4_prep_dev_for_perm_failure(phba); 13487 return PCI_ERS_RESULT_DISCONNECT; 13488 default: 13489 /* Unknown state, prepare and request slot reset */ 13490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13491 "2825 Unknown PCI error state: x%x\n", state); 13492 lpfc_sli4_prep_dev_for_reset(phba); 13493 return PCI_ERS_RESULT_NEED_RESET; 13494 } 13495 } 13496 13497 /** 13498 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 13499 * @pdev: pointer to PCI device. 13500 * 13501 * This routine is called from the PCI subsystem for error handling to device 13502 * with SLI-4 interface spec. It is called after PCI bus has been reset to 13503 * restart the PCI card from scratch, as if from a cold-boot. During the 13504 * PCI subsystem error recovery, after the driver returns 13505 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 13506 * recovery and then call this routine before calling the .resume method to 13507 * recover the device. This function will initialize the HBA device, enable 13508 * the interrupt, but it will just put the HBA to offline state without 13509 * passing any I/O traffic. 13510 * 13511 * Return codes 13512 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 13513 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 13514 */ 13515 static pci_ers_result_t 13516 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 13517 { 13518 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13519 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13520 struct lpfc_sli *psli = &phba->sli; 13521 uint32_t intr_mode; 13522 13523 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 13524 if (pci_enable_device_mem(pdev)) { 13525 printk(KERN_ERR "lpfc: Cannot re-enable " 13526 "PCI device after reset.\n"); 13527 return PCI_ERS_RESULT_DISCONNECT; 13528 } 13529 13530 pci_restore_state(pdev); 13531 13532 /* 13533 * As the new kernel behavior of pci_restore_state() API call clears 13534 * device saved_state flag, need to save the restored state again. 13535 */ 13536 pci_save_state(pdev); 13537 13538 if (pdev->is_busmaster) 13539 pci_set_master(pdev); 13540 13541 spin_lock_irq(&phba->hbalock); 13542 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 13543 spin_unlock_irq(&phba->hbalock); 13544 13545 /* Configure and enable interrupt */ 13546 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 13547 if (intr_mode == LPFC_INTR_ERROR) { 13548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13549 "2824 Cannot re-enable interrupt after " 13550 "slot reset.\n"); 13551 return PCI_ERS_RESULT_DISCONNECT; 13552 } else 13553 phba->intr_mode = intr_mode; 13554 13555 /* Log the current active interrupt mode */ 13556 lpfc_log_intr_mode(phba, phba->intr_mode); 13557 13558 return PCI_ERS_RESULT_RECOVERED; 13559 } 13560 13561 /** 13562 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 13563 * @pdev: pointer to PCI device 13564 * 13565 * This routine is called from the PCI subsystem for error handling to device 13566 * with SLI-4 interface spec. It is called when kernel error recovery tells 13567 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 13568 * error recovery. After this call, traffic can start to flow from this device 13569 * again. 13570 **/ 13571 static void 13572 lpfc_io_resume_s4(struct pci_dev *pdev) 13573 { 13574 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13575 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13576 13577 /* 13578 * In case of slot reset, as function reset is performed through 13579 * mailbox command which needs DMA to be enabled, this operation 13580 * has to be moved to the io resume phase. Taking device offline 13581 * will perform the necessary cleanup. 13582 */ 13583 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 13584 /* Perform device reset */ 13585 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 13586 lpfc_offline(phba); 13587 lpfc_sli_brdrestart(phba); 13588 /* Bring the device back online */ 13589 lpfc_online(phba); 13590 } 13591 } 13592 13593 /** 13594 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 13595 * @pdev: pointer to PCI device 13596 * @pid: pointer to PCI device identifier 13597 * 13598 * This routine is to be registered to the kernel's PCI subsystem. When an 13599 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 13600 * at PCI device-specific information of the device and driver to see if the 13601 * driver state that it can support this kind of device. If the match is 13602 * successful, the driver core invokes this routine. This routine dispatches 13603 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 13604 * do all the initialization that it needs to do to handle the HBA device 13605 * properly. 13606 * 13607 * Return code 13608 * 0 - driver can claim the device 13609 * negative value - driver can not claim the device 13610 **/ 13611 static int 13612 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 13613 { 13614 int rc; 13615 struct lpfc_sli_intf intf; 13616 13617 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 13618 return -ENODEV; 13619 13620 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 13621 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 13622 rc = lpfc_pci_probe_one_s4(pdev, pid); 13623 else 13624 rc = lpfc_pci_probe_one_s3(pdev, pid); 13625 13626 return rc; 13627 } 13628 13629 /** 13630 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 13631 * @pdev: pointer to PCI device 13632 * 13633 * This routine is to be registered to the kernel's PCI subsystem. When an 13634 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 13635 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 13636 * remove routine, which will perform all the necessary cleanup for the 13637 * device to be removed from the PCI subsystem properly. 13638 **/ 13639 static void 13640 lpfc_pci_remove_one(struct pci_dev *pdev) 13641 { 13642 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13643 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13644 13645 switch (phba->pci_dev_grp) { 13646 case LPFC_PCI_DEV_LP: 13647 lpfc_pci_remove_one_s3(pdev); 13648 break; 13649 case LPFC_PCI_DEV_OC: 13650 lpfc_pci_remove_one_s4(pdev); 13651 break; 13652 default: 13653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13654 "1424 Invalid PCI device group: 0x%x\n", 13655 phba->pci_dev_grp); 13656 break; 13657 } 13658 return; 13659 } 13660 13661 /** 13662 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 13663 * @pdev: pointer to PCI device 13664 * @msg: power management message 13665 * 13666 * This routine is to be registered to the kernel's PCI subsystem to support 13667 * system Power Management (PM). When PM invokes this method, it dispatches 13668 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 13669 * suspend the device. 13670 * 13671 * Return code 13672 * 0 - driver suspended the device 13673 * Error otherwise 13674 **/ 13675 static int 13676 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 13677 { 13678 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13679 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13680 int rc = -ENODEV; 13681 13682 switch (phba->pci_dev_grp) { 13683 case LPFC_PCI_DEV_LP: 13684 rc = lpfc_pci_suspend_one_s3(pdev, msg); 13685 break; 13686 case LPFC_PCI_DEV_OC: 13687 rc = lpfc_pci_suspend_one_s4(pdev, msg); 13688 break; 13689 default: 13690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13691 "1425 Invalid PCI device group: 0x%x\n", 13692 phba->pci_dev_grp); 13693 break; 13694 } 13695 return rc; 13696 } 13697 13698 /** 13699 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 13700 * @pdev: pointer to PCI device 13701 * 13702 * This routine is to be registered to the kernel's PCI subsystem to support 13703 * system Power Management (PM). When PM invokes this method, it dispatches 13704 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 13705 * resume the device. 13706 * 13707 * Return code 13708 * 0 - driver suspended the device 13709 * Error otherwise 13710 **/ 13711 static int 13712 lpfc_pci_resume_one(struct pci_dev *pdev) 13713 { 13714 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13715 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13716 int rc = -ENODEV; 13717 13718 switch (phba->pci_dev_grp) { 13719 case LPFC_PCI_DEV_LP: 13720 rc = lpfc_pci_resume_one_s3(pdev); 13721 break; 13722 case LPFC_PCI_DEV_OC: 13723 rc = lpfc_pci_resume_one_s4(pdev); 13724 break; 13725 default: 13726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13727 "1426 Invalid PCI device group: 0x%x\n", 13728 phba->pci_dev_grp); 13729 break; 13730 } 13731 return rc; 13732 } 13733 13734 /** 13735 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 13736 * @pdev: pointer to PCI device. 13737 * @state: the current PCI connection state. 13738 * 13739 * This routine is registered to the PCI subsystem for error handling. This 13740 * function is called by the PCI subsystem after a PCI bus error affecting 13741 * this device has been detected. When this routine is invoked, it dispatches 13742 * the action to the proper SLI-3 or SLI-4 device error detected handling 13743 * routine, which will perform the proper error detected operation. 13744 * 13745 * Return codes 13746 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 13747 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 13748 **/ 13749 static pci_ers_result_t 13750 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 13751 { 13752 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13753 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13754 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 13755 13756 switch (phba->pci_dev_grp) { 13757 case LPFC_PCI_DEV_LP: 13758 rc = lpfc_io_error_detected_s3(pdev, state); 13759 break; 13760 case LPFC_PCI_DEV_OC: 13761 rc = lpfc_io_error_detected_s4(pdev, state); 13762 break; 13763 default: 13764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13765 "1427 Invalid PCI device group: 0x%x\n", 13766 phba->pci_dev_grp); 13767 break; 13768 } 13769 return rc; 13770 } 13771 13772 /** 13773 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 13774 * @pdev: pointer to PCI device. 13775 * 13776 * This routine is registered to the PCI subsystem for error handling. This 13777 * function is called after PCI bus has been reset to restart the PCI card 13778 * from scratch, as if from a cold-boot. When this routine is invoked, it 13779 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 13780 * routine, which will perform the proper device reset. 13781 * 13782 * Return codes 13783 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 13784 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 13785 **/ 13786 static pci_ers_result_t 13787 lpfc_io_slot_reset(struct pci_dev *pdev) 13788 { 13789 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13790 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13791 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 13792 13793 switch (phba->pci_dev_grp) { 13794 case LPFC_PCI_DEV_LP: 13795 rc = lpfc_io_slot_reset_s3(pdev); 13796 break; 13797 case LPFC_PCI_DEV_OC: 13798 rc = lpfc_io_slot_reset_s4(pdev); 13799 break; 13800 default: 13801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13802 "1428 Invalid PCI device group: 0x%x\n", 13803 phba->pci_dev_grp); 13804 break; 13805 } 13806 return rc; 13807 } 13808 13809 /** 13810 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 13811 * @pdev: pointer to PCI device 13812 * 13813 * This routine is registered to the PCI subsystem for error handling. It 13814 * is called when kernel error recovery tells the lpfc driver that it is 13815 * OK to resume normal PCI operation after PCI bus error recovery. When 13816 * this routine is invoked, it dispatches the action to the proper SLI-3 13817 * or SLI-4 device io_resume routine, which will resume the device operation. 13818 **/ 13819 static void 13820 lpfc_io_resume(struct pci_dev *pdev) 13821 { 13822 struct Scsi_Host *shost = pci_get_drvdata(pdev); 13823 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 13824 13825 switch (phba->pci_dev_grp) { 13826 case LPFC_PCI_DEV_LP: 13827 lpfc_io_resume_s3(pdev); 13828 break; 13829 case LPFC_PCI_DEV_OC: 13830 lpfc_io_resume_s4(pdev); 13831 break; 13832 default: 13833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 13834 "1429 Invalid PCI device group: 0x%x\n", 13835 phba->pci_dev_grp); 13836 break; 13837 } 13838 return; 13839 } 13840 13841 /** 13842 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 13843 * @phba: pointer to lpfc hba data structure. 13844 * 13845 * This routine checks to see if OAS is supported for this adapter. If 13846 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 13847 * the enable oas flag is cleared and the pool created for OAS device data 13848 * is destroyed. 13849 * 13850 **/ 13851 static void 13852 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 13853 { 13854 13855 if (!phba->cfg_EnableXLane) 13856 return; 13857 13858 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 13859 phba->cfg_fof = 1; 13860 } else { 13861 phba->cfg_fof = 0; 13862 mempool_destroy(phba->device_data_mem_pool); 13863 phba->device_data_mem_pool = NULL; 13864 } 13865 13866 return; 13867 } 13868 13869 /** 13870 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter 13871 * @phba: pointer to lpfc hba data structure. 13872 * 13873 * This routine checks to see if RAS is supported by the adapter. Check the 13874 * function through which RAS support enablement is to be done. 13875 **/ 13876 void 13877 lpfc_sli4_ras_init(struct lpfc_hba *phba) 13878 { 13879 switch (phba->pcidev->device) { 13880 case PCI_DEVICE_ID_LANCER_G6_FC: 13881 case PCI_DEVICE_ID_LANCER_G7_FC: 13882 phba->ras_fwlog.ras_hwsupport = true; 13883 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) && 13884 phba->cfg_ras_fwlog_buffsize) 13885 phba->ras_fwlog.ras_enabled = true; 13886 else 13887 phba->ras_fwlog.ras_enabled = false; 13888 break; 13889 default: 13890 phba->ras_fwlog.ras_hwsupport = false; 13891 } 13892 } 13893 13894 13895 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 13896 13897 static const struct pci_error_handlers lpfc_err_handler = { 13898 .error_detected = lpfc_io_error_detected, 13899 .slot_reset = lpfc_io_slot_reset, 13900 .resume = lpfc_io_resume, 13901 }; 13902 13903 static struct pci_driver lpfc_driver = { 13904 .name = LPFC_DRIVER_NAME, 13905 .id_table = lpfc_id_table, 13906 .probe = lpfc_pci_probe_one, 13907 .remove = lpfc_pci_remove_one, 13908 .shutdown = lpfc_pci_remove_one, 13909 .suspend = lpfc_pci_suspend_one, 13910 .resume = lpfc_pci_resume_one, 13911 .err_handler = &lpfc_err_handler, 13912 }; 13913 13914 static const struct file_operations lpfc_mgmt_fop = { 13915 .owner = THIS_MODULE, 13916 }; 13917 13918 static struct miscdevice lpfc_mgmt_dev = { 13919 .minor = MISC_DYNAMIC_MINOR, 13920 .name = "lpfcmgmt", 13921 .fops = &lpfc_mgmt_fop, 13922 }; 13923 13924 /** 13925 * lpfc_init - lpfc module initialization routine 13926 * 13927 * This routine is to be invoked when the lpfc module is loaded into the 13928 * kernel. The special kernel macro module_init() is used to indicate the 13929 * role of this routine to the kernel as lpfc module entry point. 13930 * 13931 * Return codes 13932 * 0 - successful 13933 * -ENOMEM - FC attach transport failed 13934 * all others - failed 13935 */ 13936 static int __init 13937 lpfc_init(void) 13938 { 13939 int error = 0; 13940 13941 printk(LPFC_MODULE_DESC "\n"); 13942 printk(LPFC_COPYRIGHT "\n"); 13943 13944 error = misc_register(&lpfc_mgmt_dev); 13945 if (error) 13946 printk(KERN_ERR "Could not register lpfcmgmt device, " 13947 "misc_register returned with status %d", error); 13948 13949 lpfc_transport_functions.vport_create = lpfc_vport_create; 13950 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 13951 lpfc_transport_template = 13952 fc_attach_transport(&lpfc_transport_functions); 13953 if (lpfc_transport_template == NULL) 13954 return -ENOMEM; 13955 lpfc_vport_transport_template = 13956 fc_attach_transport(&lpfc_vport_transport_functions); 13957 if (lpfc_vport_transport_template == NULL) { 13958 fc_release_transport(lpfc_transport_template); 13959 return -ENOMEM; 13960 } 13961 lpfc_nvme_cmd_template(); 13962 lpfc_nvmet_cmd_template(); 13963 13964 /* Initialize in case vector mapping is needed */ 13965 lpfc_present_cpu = num_present_cpus(); 13966 13967 error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, 13968 "lpfc/sli4:online", 13969 lpfc_cpu_online, lpfc_cpu_offline); 13970 if (error < 0) 13971 goto cpuhp_failure; 13972 lpfc_cpuhp_state = error; 13973 13974 error = pci_register_driver(&lpfc_driver); 13975 if (error) 13976 goto unwind; 13977 13978 return error; 13979 13980 unwind: 13981 cpuhp_remove_multi_state(lpfc_cpuhp_state); 13982 cpuhp_failure: 13983 fc_release_transport(lpfc_transport_template); 13984 fc_release_transport(lpfc_vport_transport_template); 13985 13986 return error; 13987 } 13988 13989 /** 13990 * lpfc_exit - lpfc module removal routine 13991 * 13992 * This routine is invoked when the lpfc module is removed from the kernel. 13993 * The special kernel macro module_exit() is used to indicate the role of 13994 * this routine to the kernel as lpfc module exit point. 13995 */ 13996 static void __exit 13997 lpfc_exit(void) 13998 { 13999 misc_deregister(&lpfc_mgmt_dev); 14000 pci_unregister_driver(&lpfc_driver); 14001 cpuhp_remove_multi_state(lpfc_cpuhp_state); 14002 fc_release_transport(lpfc_transport_template); 14003 fc_release_transport(lpfc_vport_transport_template); 14004 idr_destroy(&lpfc_hba_index); 14005 } 14006 14007 module_init(lpfc_init); 14008 module_exit(lpfc_exit); 14009 MODULE_LICENSE("GPL"); 14010 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 14011 MODULE_AUTHOR("Broadcom"); 14012 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 14013