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/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include <linux/nvme-fc-driver.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_nvmet.h" 52 #include "lpfc_logmsg.h" 53 #include "lpfc_version.h" 54 #include "lpfc_compat.h" 55 #include "lpfc_crtn.h" 56 #include "lpfc_vport.h" 57 #include "lpfc_attr.h" 58 59 #define LPFC_DEF_DEVLOSS_TMO 30 60 #define LPFC_MIN_DEVLOSS_TMO 1 61 #define LPFC_MAX_DEVLOSS_TMO 255 62 63 #define LPFC_DEF_MRQ_POST 512 64 #define LPFC_MIN_MRQ_POST 512 65 #define LPFC_MAX_MRQ_POST 2048 66 67 /* 68 * Write key size should be multiple of 4. If write key is changed 69 * make sure that library write key is also changed. 70 */ 71 #define LPFC_REG_WRITE_KEY_SIZE 4 72 #define LPFC_REG_WRITE_KEY "EMLX" 73 74 const char *const trunk_errmsg[] = { /* map errcode */ 75 "", /* There is no such error code at index 0*/ 76 "link negotiated speed does not match existing" 77 " trunk - link was \"low\" speed", 78 "link negotiated speed does not match" 79 " existing trunk - link was \"middle\" speed", 80 "link negotiated speed does not match existing" 81 " trunk - link was \"high\" speed", 82 "Attached to non-trunking port - F_Port", 83 "Attached to non-trunking port - N_Port", 84 "FLOGI response timeout", 85 "non-FLOGI frame received", 86 "Invalid FLOGI response", 87 "Trunking initialization protocol", 88 "Trunk peer device mismatch", 89 }; 90 91 /** 92 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 93 * @incr: integer to convert. 94 * @hdw: ascii string holding converted integer plus a string terminator. 95 * 96 * Description: 97 * JEDEC Joint Electron Device Engineering Council. 98 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 99 * character string. The string is then terminated with a NULL in byte 9. 100 * Hex 0-9 becomes ascii '0' to '9'. 101 * Hex a-f becomes ascii '=' to 'B' capital B. 102 * 103 * Notes: 104 * Coded for 32 bit integers only. 105 **/ 106 static void 107 lpfc_jedec_to_ascii(int incr, char hdw[]) 108 { 109 int i, j; 110 for (i = 0; i < 8; i++) { 111 j = (incr & 0xf); 112 if (j <= 9) 113 hdw[7 - i] = 0x30 + j; 114 else 115 hdw[7 - i] = 0x61 + j - 10; 116 incr = (incr >> 4); 117 } 118 hdw[8] = 0; 119 return; 120 } 121 122 /** 123 * lpfc_drvr_version_show - Return the Emulex driver string with version number 124 * @dev: class unused variable. 125 * @attr: device attribute, not used. 126 * @buf: on return contains the module description text. 127 * 128 * Returns: size of formatted string. 129 **/ 130 static ssize_t 131 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 132 char *buf) 133 { 134 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 135 } 136 137 /** 138 * lpfc_enable_fip_show - Return the fip mode of the HBA 139 * @dev: class unused variable. 140 * @attr: device attribute, not used. 141 * @buf: on return contains the module description text. 142 * 143 * Returns: size of formatted string. 144 **/ 145 static ssize_t 146 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 147 char *buf) 148 { 149 struct Scsi_Host *shost = class_to_shost(dev); 150 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 151 struct lpfc_hba *phba = vport->phba; 152 153 if (phba->hba_flag & HBA_FIP_SUPPORT) 154 return scnprintf(buf, PAGE_SIZE, "1\n"); 155 else 156 return scnprintf(buf, PAGE_SIZE, "0\n"); 157 } 158 159 static ssize_t 160 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 161 char *buf) 162 { 163 struct Scsi_Host *shost = class_to_shost(dev); 164 struct lpfc_vport *vport = shost_priv(shost); 165 struct lpfc_hba *phba = vport->phba; 166 struct lpfc_nvmet_tgtport *tgtp; 167 struct nvme_fc_local_port *localport; 168 struct lpfc_nvme_lport *lport; 169 struct lpfc_nvme_rport *rport; 170 struct lpfc_nodelist *ndlp; 171 struct nvme_fc_remote_port *nrport; 172 struct lpfc_fc4_ctrl_stat *cstat; 173 uint64_t data1, data2, data3; 174 uint64_t totin, totout, tot; 175 char *statep; 176 int i; 177 int len = 0; 178 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 179 180 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 181 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 182 return len; 183 } 184 if (phba->nvmet_support) { 185 if (!phba->targetport) { 186 len = scnprintf(buf, PAGE_SIZE, 187 "NVME Target: x%llx is not allocated\n", 188 wwn_to_u64(vport->fc_portname.u.wwn)); 189 return len; 190 } 191 /* Port state is only one of two values for now. */ 192 if (phba->targetport->port_id) 193 statep = "REGISTERED"; 194 else 195 statep = "INIT"; 196 scnprintf(tmp, sizeof(tmp), 197 "NVME Target Enabled State %s\n", 198 statep); 199 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 200 goto buffer_done; 201 202 scnprintf(tmp, sizeof(tmp), 203 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 204 "NVME Target: lpfc", 205 phba->brd_no, 206 wwn_to_u64(vport->fc_portname.u.wwn), 207 wwn_to_u64(vport->fc_nodename.u.wwn), 208 phba->targetport->port_id); 209 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 210 goto buffer_done; 211 212 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 213 >= PAGE_SIZE) 214 goto buffer_done; 215 216 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 217 scnprintf(tmp, sizeof(tmp), 218 "LS: Rcv %08x Drop %08x Abort %08x\n", 219 atomic_read(&tgtp->rcv_ls_req_in), 220 atomic_read(&tgtp->rcv_ls_req_drop), 221 atomic_read(&tgtp->xmt_ls_abort)); 222 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 223 goto buffer_done; 224 225 if (atomic_read(&tgtp->rcv_ls_req_in) != 226 atomic_read(&tgtp->rcv_ls_req_out)) { 227 scnprintf(tmp, sizeof(tmp), 228 "Rcv LS: in %08x != out %08x\n", 229 atomic_read(&tgtp->rcv_ls_req_in), 230 atomic_read(&tgtp->rcv_ls_req_out)); 231 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 232 goto buffer_done; 233 } 234 235 scnprintf(tmp, sizeof(tmp), 236 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 237 atomic_read(&tgtp->xmt_ls_rsp), 238 atomic_read(&tgtp->xmt_ls_drop), 239 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 240 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 241 goto buffer_done; 242 243 scnprintf(tmp, sizeof(tmp), 244 "LS: RSP Abort %08x xb %08x Err %08x\n", 245 atomic_read(&tgtp->xmt_ls_rsp_aborted), 246 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 247 atomic_read(&tgtp->xmt_ls_rsp_error)); 248 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 249 goto buffer_done; 250 251 scnprintf(tmp, sizeof(tmp), 252 "FCP: Rcv %08x Defer %08x Release %08x " 253 "Drop %08x\n", 254 atomic_read(&tgtp->rcv_fcp_cmd_in), 255 atomic_read(&tgtp->rcv_fcp_cmd_defer), 256 atomic_read(&tgtp->xmt_fcp_release), 257 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 258 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 259 goto buffer_done; 260 261 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 262 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 263 scnprintf(tmp, sizeof(tmp), 264 "Rcv FCP: in %08x != out %08x\n", 265 atomic_read(&tgtp->rcv_fcp_cmd_in), 266 atomic_read(&tgtp->rcv_fcp_cmd_out)); 267 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 268 goto buffer_done; 269 } 270 271 scnprintf(tmp, sizeof(tmp), 272 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 273 "drop %08x\n", 274 atomic_read(&tgtp->xmt_fcp_read), 275 atomic_read(&tgtp->xmt_fcp_read_rsp), 276 atomic_read(&tgtp->xmt_fcp_write), 277 atomic_read(&tgtp->xmt_fcp_rsp), 278 atomic_read(&tgtp->xmt_fcp_drop)); 279 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 280 goto buffer_done; 281 282 scnprintf(tmp, sizeof(tmp), 283 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 284 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 285 atomic_read(&tgtp->xmt_fcp_rsp_error), 286 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 287 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 288 goto buffer_done; 289 290 scnprintf(tmp, sizeof(tmp), 291 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 292 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 293 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 294 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 295 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 296 goto buffer_done; 297 298 scnprintf(tmp, sizeof(tmp), 299 "ABORT: Xmt %08x Cmpl %08x\n", 300 atomic_read(&tgtp->xmt_fcp_abort), 301 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 302 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 303 goto buffer_done; 304 305 scnprintf(tmp, sizeof(tmp), 306 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 307 atomic_read(&tgtp->xmt_abort_sol), 308 atomic_read(&tgtp->xmt_abort_unsol), 309 atomic_read(&tgtp->xmt_abort_rsp), 310 atomic_read(&tgtp->xmt_abort_rsp_error)); 311 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 312 goto buffer_done; 313 314 scnprintf(tmp, sizeof(tmp), 315 "DELAY: ctx %08x fod %08x wqfull %08x\n", 316 atomic_read(&tgtp->defer_ctx), 317 atomic_read(&tgtp->defer_fod), 318 atomic_read(&tgtp->defer_wqfull)); 319 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 320 goto buffer_done; 321 322 /* Calculate outstanding IOs */ 323 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 324 tot += atomic_read(&tgtp->xmt_fcp_release); 325 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 326 327 scnprintf(tmp, sizeof(tmp), 328 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 329 "CTX Outstanding %08llx\n\n", 330 phba->sli4_hba.nvmet_xri_cnt, 331 phba->sli4_hba.nvmet_io_wait_cnt, 332 phba->sli4_hba.nvmet_io_wait_total, 333 tot); 334 strlcat(buf, tmp, PAGE_SIZE); 335 goto buffer_done; 336 } 337 338 localport = vport->localport; 339 if (!localport) { 340 len = scnprintf(buf, PAGE_SIZE, 341 "NVME Initiator x%llx is not allocated\n", 342 wwn_to_u64(vport->fc_portname.u.wwn)); 343 return len; 344 } 345 lport = (struct lpfc_nvme_lport *)localport->private; 346 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 347 goto buffer_done; 348 349 scnprintf(tmp, sizeof(tmp), 350 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 351 phba->brd_no, 352 phba->sli4_hba.max_cfg_param.max_xri, 353 phba->sli4_hba.io_xri_max, 354 lpfc_sli4_get_els_iocb_cnt(phba)); 355 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 356 goto buffer_done; 357 358 /* Port state is only one of two values for now. */ 359 if (localport->port_id) 360 statep = "ONLINE"; 361 else 362 statep = "UNKNOWN "; 363 364 scnprintf(tmp, sizeof(tmp), 365 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 366 "NVME LPORT lpfc", 367 phba->brd_no, 368 wwn_to_u64(vport->fc_portname.u.wwn), 369 wwn_to_u64(vport->fc_nodename.u.wwn), 370 localport->port_id, statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 spin_lock_irq(shost->host_lock); 375 376 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 377 nrport = NULL; 378 spin_lock(&vport->phba->hbalock); 379 rport = lpfc_ndlp_get_nrport(ndlp); 380 if (rport) 381 nrport = rport->remoteport; 382 spin_unlock(&vport->phba->hbalock); 383 if (!nrport) 384 continue; 385 386 /* Port state is only one of two values for now. */ 387 switch (nrport->port_state) { 388 case FC_OBJSTATE_ONLINE: 389 statep = "ONLINE"; 390 break; 391 case FC_OBJSTATE_UNKNOWN: 392 statep = "UNKNOWN "; 393 break; 394 default: 395 statep = "UNSUPPORTED"; 396 break; 397 } 398 399 /* Tab in to show lport ownership. */ 400 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 401 goto unlock_buf_done; 402 if (phba->brd_no >= 10) { 403 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 404 goto unlock_buf_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 408 nrport->port_name); 409 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 410 goto unlock_buf_done; 411 412 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 413 nrport->node_name); 414 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 415 goto unlock_buf_done; 416 417 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 418 nrport->port_id); 419 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 420 goto unlock_buf_done; 421 422 /* An NVME rport can have multiple roles. */ 423 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 424 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 425 goto unlock_buf_done; 426 } 427 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 428 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 429 goto unlock_buf_done; 430 } 431 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 432 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 433 goto unlock_buf_done; 434 } 435 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 436 FC_PORT_ROLE_NVME_TARGET | 437 FC_PORT_ROLE_NVME_DISCOVERY)) { 438 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 439 nrport->port_role); 440 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 441 goto unlock_buf_done; 442 } 443 444 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 445 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 446 goto unlock_buf_done; 447 } 448 spin_unlock_irq(shost->host_lock); 449 450 if (!lport) 451 goto buffer_done; 452 453 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 454 goto buffer_done; 455 456 scnprintf(tmp, sizeof(tmp), 457 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 458 atomic_read(&lport->fc4NvmeLsRequests), 459 atomic_read(&lport->fc4NvmeLsCmpls), 460 atomic_read(&lport->xmt_ls_abort)); 461 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 462 goto buffer_done; 463 464 scnprintf(tmp, sizeof(tmp), 465 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 466 atomic_read(&lport->xmt_ls_err), 467 atomic_read(&lport->cmpl_ls_xb), 468 atomic_read(&lport->cmpl_ls_err)); 469 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 470 goto buffer_done; 471 472 totin = 0; 473 totout = 0; 474 for (i = 0; i < phba->cfg_hdw_queue; i++) { 475 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 476 tot = cstat->io_cmpls; 477 totin += tot; 478 data1 = cstat->input_requests; 479 data2 = cstat->output_requests; 480 data3 = cstat->control_requests; 481 totout += (data1 + data2 + data3); 482 } 483 scnprintf(tmp, sizeof(tmp), 484 "Total FCP Cmpl %016llx Issue %016llx " 485 "OutIO %016llx\n", 486 totin, totout, totout - totin); 487 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 488 goto buffer_done; 489 490 scnprintf(tmp, sizeof(tmp), 491 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 492 "wqerr %08x err %08x\n", 493 atomic_read(&lport->xmt_fcp_abort), 494 atomic_read(&lport->xmt_fcp_noxri), 495 atomic_read(&lport->xmt_fcp_bad_ndlp), 496 atomic_read(&lport->xmt_fcp_qdepth), 497 atomic_read(&lport->xmt_fcp_err), 498 atomic_read(&lport->xmt_fcp_wqerr)); 499 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 500 goto buffer_done; 501 502 scnprintf(tmp, sizeof(tmp), 503 "FCP CMPL: xb %08x Err %08x\n", 504 atomic_read(&lport->cmpl_fcp_xb), 505 atomic_read(&lport->cmpl_fcp_err)); 506 strlcat(buf, tmp, PAGE_SIZE); 507 508 /* host_lock is already unlocked. */ 509 goto buffer_done; 510 511 unlock_buf_done: 512 spin_unlock_irq(shost->host_lock); 513 514 buffer_done: 515 len = strnlen(buf, PAGE_SIZE); 516 517 if (unlikely(len >= (PAGE_SIZE - 1))) { 518 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 519 "6314 Catching potential buffer " 520 "overflow > PAGE_SIZE = %lu bytes\n", 521 PAGE_SIZE); 522 strlcpy(buf + PAGE_SIZE - 1 - 523 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1), 524 LPFC_NVME_INFO_MORE_STR, 525 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) 526 + 1); 527 } 528 529 return len; 530 } 531 532 static ssize_t 533 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 534 char *buf) 535 { 536 struct Scsi_Host *shost = class_to_shost(dev); 537 struct lpfc_vport *vport = shost_priv(shost); 538 struct lpfc_hba *phba = vport->phba; 539 int len; 540 struct lpfc_fc4_ctrl_stat *cstat; 541 u64 data1, data2, data3; 542 u64 tot, totin, totout; 543 int i; 544 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 545 546 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 547 (phba->sli_rev != LPFC_SLI_REV4)) 548 return 0; 549 550 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 551 552 totin = 0; 553 totout = 0; 554 for (i = 0; i < phba->cfg_hdw_queue; i++) { 555 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 556 tot = cstat->io_cmpls; 557 totin += tot; 558 data1 = cstat->input_requests; 559 data2 = cstat->output_requests; 560 data3 = cstat->control_requests; 561 totout += (data1 + data2 + data3); 562 563 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 564 "IO %016llx ", i, data1, data2, data3); 565 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 566 goto buffer_done; 567 568 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 569 tot, ((data1 + data2 + data3) - tot)); 570 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 571 goto buffer_done; 572 } 573 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 574 "OutIO %016llx\n", totin, totout, totout - totin); 575 strlcat(buf, tmp, PAGE_SIZE); 576 577 buffer_done: 578 len = strnlen(buf, PAGE_SIZE); 579 580 return len; 581 } 582 583 static ssize_t 584 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 585 char *buf) 586 { 587 struct Scsi_Host *shost = class_to_shost(dev); 588 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 589 struct lpfc_hba *phba = vport->phba; 590 591 if (phba->cfg_enable_bg) { 592 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 593 return scnprintf(buf, PAGE_SIZE, 594 "BlockGuard Enabled\n"); 595 else 596 return scnprintf(buf, PAGE_SIZE, 597 "BlockGuard Not Supported\n"); 598 } else 599 return scnprintf(buf, PAGE_SIZE, 600 "BlockGuard Disabled\n"); 601 } 602 603 static ssize_t 604 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 605 char *buf) 606 { 607 struct Scsi_Host *shost = class_to_shost(dev); 608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 609 struct lpfc_hba *phba = vport->phba; 610 611 return scnprintf(buf, PAGE_SIZE, "%llu\n", 612 (unsigned long long)phba->bg_guard_err_cnt); 613 } 614 615 static ssize_t 616 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 617 char *buf) 618 { 619 struct Scsi_Host *shost = class_to_shost(dev); 620 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 621 struct lpfc_hba *phba = vport->phba; 622 623 return scnprintf(buf, PAGE_SIZE, "%llu\n", 624 (unsigned long long)phba->bg_apptag_err_cnt); 625 } 626 627 static ssize_t 628 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 629 char *buf) 630 { 631 struct Scsi_Host *shost = class_to_shost(dev); 632 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 633 struct lpfc_hba *phba = vport->phba; 634 635 return scnprintf(buf, PAGE_SIZE, "%llu\n", 636 (unsigned long long)phba->bg_reftag_err_cnt); 637 } 638 639 /** 640 * lpfc_info_show - Return some pci info about the host in ascii 641 * @dev: class converted to a Scsi_host structure. 642 * @attr: device attribute, not used. 643 * @buf: on return contains the formatted text from lpfc_info(). 644 * 645 * Returns: size of formatted string. 646 **/ 647 static ssize_t 648 lpfc_info_show(struct device *dev, struct device_attribute *attr, 649 char *buf) 650 { 651 struct Scsi_Host *host = class_to_shost(dev); 652 653 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 654 } 655 656 /** 657 * lpfc_serialnum_show - Return the hba serial number in ascii 658 * @dev: class converted to a Scsi_host structure. 659 * @attr: device attribute, not used. 660 * @buf: on return contains the formatted text serial number. 661 * 662 * Returns: size of formatted string. 663 **/ 664 static ssize_t 665 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 666 char *buf) 667 { 668 struct Scsi_Host *shost = class_to_shost(dev); 669 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 670 struct lpfc_hba *phba = vport->phba; 671 672 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 673 } 674 675 /** 676 * lpfc_temp_sensor_show - Return the temperature sensor level 677 * @dev: class converted to a Scsi_host structure. 678 * @attr: device attribute, not used. 679 * @buf: on return contains the formatted support level. 680 * 681 * Description: 682 * Returns a number indicating the temperature sensor level currently 683 * supported, zero or one in ascii. 684 * 685 * Returns: size of formatted string. 686 **/ 687 static ssize_t 688 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 689 char *buf) 690 { 691 struct Scsi_Host *shost = class_to_shost(dev); 692 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 693 struct lpfc_hba *phba = vport->phba; 694 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 695 } 696 697 /** 698 * lpfc_modeldesc_show - Return the model description of the hba 699 * @dev: class converted to a Scsi_host structure. 700 * @attr: device attribute, not used. 701 * @buf: on return contains the scsi vpd model description. 702 * 703 * Returns: size of formatted string. 704 **/ 705 static ssize_t 706 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 707 char *buf) 708 { 709 struct Scsi_Host *shost = class_to_shost(dev); 710 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 711 struct lpfc_hba *phba = vport->phba; 712 713 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 714 } 715 716 /** 717 * lpfc_modelname_show - Return the model name of the hba 718 * @dev: class converted to a Scsi_host structure. 719 * @attr: device attribute, not used. 720 * @buf: on return contains the scsi vpd model name. 721 * 722 * Returns: size of formatted string. 723 **/ 724 static ssize_t 725 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 726 char *buf) 727 { 728 struct Scsi_Host *shost = class_to_shost(dev); 729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 730 struct lpfc_hba *phba = vport->phba; 731 732 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 733 } 734 735 /** 736 * lpfc_programtype_show - Return the program type of the hba 737 * @dev: class converted to a Scsi_host structure. 738 * @attr: device attribute, not used. 739 * @buf: on return contains the scsi vpd program type. 740 * 741 * Returns: size of formatted string. 742 **/ 743 static ssize_t 744 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 745 char *buf) 746 { 747 struct Scsi_Host *shost = class_to_shost(dev); 748 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 749 struct lpfc_hba *phba = vport->phba; 750 751 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 752 } 753 754 /** 755 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 756 * @dev: class converted to a Scsi_host structure. 757 * @attr: device attribute, not used. 758 * @buf: on return contains the Menlo Maintenance sli flag. 759 * 760 * Returns: size of formatted string. 761 **/ 762 static ssize_t 763 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 764 { 765 struct Scsi_Host *shost = class_to_shost(dev); 766 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 767 struct lpfc_hba *phba = vport->phba; 768 769 return scnprintf(buf, PAGE_SIZE, "%d\n", 770 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 771 } 772 773 /** 774 * lpfc_vportnum_show - Return the port number in ascii of the hba 775 * @dev: class converted to a Scsi_host structure. 776 * @attr: device attribute, not used. 777 * @buf: on return contains scsi vpd program type. 778 * 779 * Returns: size of formatted string. 780 **/ 781 static ssize_t 782 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 783 char *buf) 784 { 785 struct Scsi_Host *shost = class_to_shost(dev); 786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 787 struct lpfc_hba *phba = vport->phba; 788 789 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 790 } 791 792 /** 793 * lpfc_fwrev_show - Return the firmware rev running in the hba 794 * @dev: class converted to a Scsi_host structure. 795 * @attr: device attribute, not used. 796 * @buf: on return contains the scsi vpd program type. 797 * 798 * Returns: size of formatted string. 799 **/ 800 static ssize_t 801 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 802 char *buf) 803 { 804 struct Scsi_Host *shost = class_to_shost(dev); 805 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 806 struct lpfc_hba *phba = vport->phba; 807 uint32_t if_type; 808 uint8_t sli_family; 809 char fwrev[FW_REV_STR_SIZE]; 810 int len; 811 812 lpfc_decode_firmware_rev(phba, fwrev, 1); 813 if_type = phba->sli4_hba.pc_sli4_params.if_type; 814 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 815 816 if (phba->sli_rev < LPFC_SLI_REV4) 817 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 818 fwrev, phba->sli_rev); 819 else 820 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 821 fwrev, phba->sli_rev, if_type, sli_family); 822 823 return len; 824 } 825 826 /** 827 * lpfc_hdw_show - Return the jedec information about the hba 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the scsi vpd program type. 831 * 832 * Returns: size of formatted string. 833 **/ 834 static ssize_t 835 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 836 { 837 char hdw[9]; 838 struct Scsi_Host *shost = class_to_shost(dev); 839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 840 struct lpfc_hba *phba = vport->phba; 841 lpfc_vpd_t *vp = &phba->vpd; 842 843 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 844 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 845 vp->rev.smRev, vp->rev.smFwRev); 846 } 847 848 /** 849 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 850 * @dev: class converted to a Scsi_host structure. 851 * @attr: device attribute, not used. 852 * @buf: on return contains the ROM and FCode ascii strings. 853 * 854 * Returns: size of formatted string. 855 **/ 856 static ssize_t 857 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 858 char *buf) 859 { 860 struct Scsi_Host *shost = class_to_shost(dev); 861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 862 struct lpfc_hba *phba = vport->phba; 863 char fwrev[FW_REV_STR_SIZE]; 864 865 if (phba->sli_rev < LPFC_SLI_REV4) 866 return scnprintf(buf, PAGE_SIZE, "%s\n", 867 phba->OptionROMVersion); 868 869 lpfc_decode_firmware_rev(phba, fwrev, 1); 870 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 871 } 872 873 /** 874 * lpfc_state_show - Return the link state of the port 875 * @dev: class converted to a Scsi_host structure. 876 * @attr: device attribute, not used. 877 * @buf: on return contains text describing the state of the link. 878 * 879 * Notes: 880 * The switch statement has no default so zero will be returned. 881 * 882 * Returns: size of formatted string. 883 **/ 884 static ssize_t 885 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 886 char *buf) 887 { 888 struct Scsi_Host *shost = class_to_shost(dev); 889 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 890 struct lpfc_hba *phba = vport->phba; 891 int len = 0; 892 893 switch (phba->link_state) { 894 case LPFC_LINK_UNKNOWN: 895 case LPFC_WARM_START: 896 case LPFC_INIT_START: 897 case LPFC_INIT_MBX_CMDS: 898 case LPFC_LINK_DOWN: 899 case LPFC_HBA_ERROR: 900 if (phba->hba_flag & LINK_DISABLED) 901 len += scnprintf(buf + len, PAGE_SIZE-len, 902 "Link Down - User disabled\n"); 903 else 904 len += scnprintf(buf + len, PAGE_SIZE-len, 905 "Link Down\n"); 906 break; 907 case LPFC_LINK_UP: 908 case LPFC_CLEAR_LA: 909 case LPFC_HBA_READY: 910 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 911 912 switch (vport->port_state) { 913 case LPFC_LOCAL_CFG_LINK: 914 len += scnprintf(buf + len, PAGE_SIZE-len, 915 "Configuring Link\n"); 916 break; 917 case LPFC_FDISC: 918 case LPFC_FLOGI: 919 case LPFC_FABRIC_CFG_LINK: 920 case LPFC_NS_REG: 921 case LPFC_NS_QRY: 922 case LPFC_BUILD_DISC_LIST: 923 case LPFC_DISC_AUTH: 924 len += scnprintf(buf + len, PAGE_SIZE - len, 925 "Discovery\n"); 926 break; 927 case LPFC_VPORT_READY: 928 len += scnprintf(buf + len, PAGE_SIZE - len, 929 "Ready\n"); 930 break; 931 932 case LPFC_VPORT_FAILED: 933 len += scnprintf(buf + len, PAGE_SIZE - len, 934 "Failed\n"); 935 break; 936 937 case LPFC_VPORT_UNKNOWN: 938 len += scnprintf(buf + len, PAGE_SIZE - len, 939 "Unknown\n"); 940 break; 941 } 942 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 943 len += scnprintf(buf + len, PAGE_SIZE-len, 944 " Menlo Maint Mode\n"); 945 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 946 if (vport->fc_flag & FC_PUBLIC_LOOP) 947 len += scnprintf(buf + len, PAGE_SIZE-len, 948 " Public Loop\n"); 949 else 950 len += scnprintf(buf + len, PAGE_SIZE-len, 951 " Private Loop\n"); 952 } else { 953 if (vport->fc_flag & FC_FABRIC) 954 len += scnprintf(buf + len, PAGE_SIZE-len, 955 " Fabric\n"); 956 else 957 len += scnprintf(buf + len, PAGE_SIZE-len, 958 " Point-2-Point\n"); 959 } 960 } 961 962 if ((phba->sli_rev == LPFC_SLI_REV4) && 963 ((bf_get(lpfc_sli_intf_if_type, 964 &phba->sli4_hba.sli_intf) == 965 LPFC_SLI_INTF_IF_TYPE_6))) { 966 struct lpfc_trunk_link link = phba->trunk_link; 967 968 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 969 len += scnprintf(buf + len, PAGE_SIZE - len, 970 "Trunk port 0: Link %s %s\n", 971 (link.link0.state == LPFC_LINK_UP) ? 972 "Up" : "Down. ", 973 trunk_errmsg[link.link0.fault]); 974 975 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 976 len += scnprintf(buf + len, PAGE_SIZE - len, 977 "Trunk port 1: Link %s %s\n", 978 (link.link1.state == LPFC_LINK_UP) ? 979 "Up" : "Down. ", 980 trunk_errmsg[link.link1.fault]); 981 982 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 983 len += scnprintf(buf + len, PAGE_SIZE - len, 984 "Trunk port 2: Link %s %s\n", 985 (link.link2.state == LPFC_LINK_UP) ? 986 "Up" : "Down. ", 987 trunk_errmsg[link.link2.fault]); 988 989 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 990 len += scnprintf(buf + len, PAGE_SIZE - len, 991 "Trunk port 3: Link %s %s\n", 992 (link.link3.state == LPFC_LINK_UP) ? 993 "Up" : "Down. ", 994 trunk_errmsg[link.link3.fault]); 995 996 } 997 998 return len; 999 } 1000 1001 /** 1002 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1003 * @dev: class unused variable. 1004 * @attr: device attribute, not used. 1005 * @buf: on return contains the module description text. 1006 * 1007 * Returns: size of formatted string. 1008 **/ 1009 static ssize_t 1010 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1011 char *buf) 1012 { 1013 struct Scsi_Host *shost = class_to_shost(dev); 1014 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1015 struct lpfc_hba *phba = vport->phba; 1016 1017 if (phba->sli_rev < LPFC_SLI_REV4) 1018 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1019 1020 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1021 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1022 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1023 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1024 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1025 } 1026 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1027 } 1028 1029 /** 1030 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1031 * (OAS) is supported. 1032 * @dev: class unused variable. 1033 * @attr: device attribute, not used. 1034 * @buf: on return contains the module description text. 1035 * 1036 * Returns: size of formatted string. 1037 **/ 1038 static ssize_t 1039 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1040 char *buf) 1041 { 1042 struct Scsi_Host *shost = class_to_shost(dev); 1043 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1044 struct lpfc_hba *phba = vport->phba; 1045 1046 return scnprintf(buf, PAGE_SIZE, "%d\n", 1047 phba->sli4_hba.pc_sli4_params.oas_supported); 1048 } 1049 1050 /** 1051 * lpfc_link_state_store - Transition the link_state on an HBA port 1052 * @dev: class device that is converted into a Scsi_host. 1053 * @attr: device attribute, not used. 1054 * @buf: one or more lpfc_polling_flags values. 1055 * @count: not used. 1056 * 1057 * Returns: 1058 * -EINVAL if the buffer is not "up" or "down" 1059 * return from link state change function if non-zero 1060 * length of the buf on success 1061 **/ 1062 static ssize_t 1063 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1064 const char *buf, size_t count) 1065 { 1066 struct Scsi_Host *shost = class_to_shost(dev); 1067 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1068 struct lpfc_hba *phba = vport->phba; 1069 1070 int status = -EINVAL; 1071 1072 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1073 (phba->link_state == LPFC_LINK_DOWN)) 1074 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1075 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1076 (phba->link_state >= LPFC_LINK_UP)) 1077 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1078 1079 if (status == 0) 1080 return strlen(buf); 1081 else 1082 return status; 1083 } 1084 1085 /** 1086 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1087 * @dev: class device that is converted into a Scsi_host. 1088 * @attr: device attribute, not used. 1089 * @buf: on return contains the sum of fc mapped and unmapped. 1090 * 1091 * Description: 1092 * Returns the ascii text number of the sum of the fc mapped and unmapped 1093 * vport counts. 1094 * 1095 * Returns: size of formatted string. 1096 **/ 1097 static ssize_t 1098 lpfc_num_discovered_ports_show(struct device *dev, 1099 struct device_attribute *attr, char *buf) 1100 { 1101 struct Scsi_Host *shost = class_to_shost(dev); 1102 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1103 1104 return scnprintf(buf, PAGE_SIZE, "%d\n", 1105 vport->fc_map_cnt + vport->fc_unmap_cnt); 1106 } 1107 1108 /** 1109 * lpfc_issue_lip - Misnomer, name carried over from long ago 1110 * @shost: Scsi_Host pointer. 1111 * 1112 * Description: 1113 * Bring the link down gracefully then re-init the link. The firmware will 1114 * re-init the fiber channel interface as required. Does not issue a LIP. 1115 * 1116 * Returns: 1117 * -EPERM port offline or management commands are being blocked 1118 * -ENOMEM cannot allocate memory for the mailbox command 1119 * -EIO error sending the mailbox command 1120 * zero for success 1121 **/ 1122 static int 1123 lpfc_issue_lip(struct Scsi_Host *shost) 1124 { 1125 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1126 struct lpfc_hba *phba = vport->phba; 1127 LPFC_MBOXQ_t *pmboxq; 1128 int mbxstatus = MBXERR_ERROR; 1129 1130 /* 1131 * If the link is offline, disabled or BLOCK_MGMT_IO 1132 * it doesn't make any sense to allow issue_lip 1133 */ 1134 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1135 (phba->hba_flag & LINK_DISABLED) || 1136 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1137 return -EPERM; 1138 1139 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1140 1141 if (!pmboxq) 1142 return -ENOMEM; 1143 1144 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1145 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1146 pmboxq->u.mb.mbxOwner = OWN_HOST; 1147 1148 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1149 1150 if ((mbxstatus == MBX_SUCCESS) && 1151 (pmboxq->u.mb.mbxStatus == 0 || 1152 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1153 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1154 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1155 phba->cfg_link_speed); 1156 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1157 phba->fc_ratov * 2); 1158 if ((mbxstatus == MBX_SUCCESS) && 1159 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1160 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1161 "2859 SLI authentication is required " 1162 "for INIT_LINK but has not done yet\n"); 1163 } 1164 1165 lpfc_set_loopback_flag(phba); 1166 if (mbxstatus != MBX_TIMEOUT) 1167 mempool_free(pmboxq, phba->mbox_mem_pool); 1168 1169 if (mbxstatus == MBXERR_ERROR) 1170 return -EIO; 1171 1172 return 0; 1173 } 1174 1175 int 1176 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1177 { 1178 int cnt = 0; 1179 1180 spin_lock_irq(lock); 1181 while (!list_empty(q)) { 1182 spin_unlock_irq(lock); 1183 msleep(20); 1184 if (cnt++ > 250) { /* 5 secs */ 1185 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1186 "0466 %s %s\n", 1187 "Outstanding IO when ", 1188 "bringing Adapter offline\n"); 1189 return 0; 1190 } 1191 spin_lock_irq(lock); 1192 } 1193 spin_unlock_irq(lock); 1194 return 1; 1195 } 1196 1197 /** 1198 * lpfc_do_offline - Issues a mailbox command to bring the link down 1199 * @phba: lpfc_hba pointer. 1200 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1201 * 1202 * Notes: 1203 * Assumes any error from lpfc_do_offline() will be negative. 1204 * Can wait up to 5 seconds for the port ring buffers count 1205 * to reach zero, prints a warning if it is not zero and continues. 1206 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1207 * 1208 * Returns: 1209 * -EIO error posting the event 1210 * zero for success 1211 **/ 1212 static int 1213 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1214 { 1215 struct completion online_compl; 1216 struct lpfc_queue *qp = NULL; 1217 struct lpfc_sli_ring *pring; 1218 struct lpfc_sli *psli; 1219 int status = 0; 1220 int i; 1221 int rc; 1222 1223 init_completion(&online_compl); 1224 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1225 LPFC_EVT_OFFLINE_PREP); 1226 if (rc == 0) 1227 return -ENOMEM; 1228 1229 wait_for_completion(&online_compl); 1230 1231 if (status != 0) 1232 return -EIO; 1233 1234 psli = &phba->sli; 1235 1236 /* 1237 * If freeing the queues have already started, don't access them. 1238 * Otherwise set FREE_WAIT to indicate that queues are being used 1239 * to hold the freeing process until we finish. 1240 */ 1241 spin_lock_irq(&phba->hbalock); 1242 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1243 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1244 } else { 1245 spin_unlock_irq(&phba->hbalock); 1246 goto skip_wait; 1247 } 1248 spin_unlock_irq(&phba->hbalock); 1249 1250 /* Wait a little for things to settle down, but not 1251 * long enough for dev loss timeout to expire. 1252 */ 1253 if (phba->sli_rev != LPFC_SLI_REV4) { 1254 for (i = 0; i < psli->num_rings; i++) { 1255 pring = &psli->sli3_ring[i]; 1256 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1257 &phba->hbalock)) 1258 goto out; 1259 } 1260 } else { 1261 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1262 pring = qp->pring; 1263 if (!pring) 1264 continue; 1265 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1266 &pring->ring_lock)) 1267 goto out; 1268 } 1269 } 1270 out: 1271 spin_lock_irq(&phba->hbalock); 1272 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1273 spin_unlock_irq(&phba->hbalock); 1274 1275 skip_wait: 1276 init_completion(&online_compl); 1277 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1278 if (rc == 0) 1279 return -ENOMEM; 1280 1281 wait_for_completion(&online_compl); 1282 1283 if (status != 0) 1284 return -EIO; 1285 1286 return 0; 1287 } 1288 1289 /** 1290 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1291 * @phba: lpfc_hba pointer. 1292 * 1293 * Description: 1294 * Issues a PCI secondary bus reset for the phba->pcidev. 1295 * 1296 * Notes: 1297 * First walks the bus_list to ensure only PCI devices with Emulex 1298 * vendor id, device ids that support hot reset, only one occurrence 1299 * of function 0, and all ports on the bus are in offline mode to ensure the 1300 * hot reset only affects one valid HBA. 1301 * 1302 * Returns: 1303 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1304 * -ENODEV, NULL ptr to pcidev 1305 * -EBADSLT, detected invalid device 1306 * -EBUSY, port is not in offline state 1307 * 0, successful 1308 */ 1309 static int 1310 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1311 { 1312 struct pci_dev *pdev = phba->pcidev; 1313 struct Scsi_Host *shost = NULL; 1314 struct lpfc_hba *phba_other = NULL; 1315 struct pci_dev *ptr = NULL; 1316 int res; 1317 1318 if (phba->cfg_enable_hba_reset != 2) 1319 return -ENOTSUPP; 1320 1321 if (!pdev) { 1322 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1323 return -ENODEV; 1324 } 1325 1326 res = lpfc_check_pci_resettable(phba); 1327 if (res) 1328 return res; 1329 1330 /* Walk the list of devices on the pci_dev's bus */ 1331 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1332 /* Check port is offline */ 1333 shost = pci_get_drvdata(ptr); 1334 if (shost) { 1335 phba_other = 1336 ((struct lpfc_vport *)shost->hostdata)->phba; 1337 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1338 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1339 "8349 WWPN = 0x%02x%02x%02x%02x" 1340 "%02x%02x%02x%02x is not " 1341 "offline!\n", 1342 phba_other->wwpn[0], 1343 phba_other->wwpn[1], 1344 phba_other->wwpn[2], 1345 phba_other->wwpn[3], 1346 phba_other->wwpn[4], 1347 phba_other->wwpn[5], 1348 phba_other->wwpn[6], 1349 phba_other->wwpn[7]); 1350 return -EBUSY; 1351 } 1352 } 1353 } 1354 1355 /* Issue PCI bus reset */ 1356 res = pci_reset_bus(pdev); 1357 if (res) { 1358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1359 "8350 PCI reset bus failed: %d\n", res); 1360 } 1361 1362 return res; 1363 } 1364 1365 /** 1366 * lpfc_selective_reset - Offline then onlines the port 1367 * @phba: lpfc_hba pointer. 1368 * 1369 * Description: 1370 * If the port is configured to allow a reset then the hba is brought 1371 * offline then online. 1372 * 1373 * Notes: 1374 * Assumes any error from lpfc_do_offline() will be negative. 1375 * Do not make this function static. 1376 * 1377 * Returns: 1378 * lpfc_do_offline() return code if not zero 1379 * -EIO reset not configured or error posting the event 1380 * zero for success 1381 **/ 1382 int 1383 lpfc_selective_reset(struct lpfc_hba *phba) 1384 { 1385 struct completion online_compl; 1386 int status = 0; 1387 int rc; 1388 1389 if (!phba->cfg_enable_hba_reset) 1390 return -EACCES; 1391 1392 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1393 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1394 1395 if (status != 0) 1396 return status; 1397 } 1398 1399 init_completion(&online_compl); 1400 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1401 LPFC_EVT_ONLINE); 1402 if (rc == 0) 1403 return -ENOMEM; 1404 1405 wait_for_completion(&online_compl); 1406 1407 if (status != 0) 1408 return -EIO; 1409 1410 return 0; 1411 } 1412 1413 /** 1414 * lpfc_issue_reset - Selectively resets an adapter 1415 * @dev: class device that is converted into a Scsi_host. 1416 * @attr: device attribute, not used. 1417 * @buf: containing the string "selective". 1418 * @count: unused variable. 1419 * 1420 * Description: 1421 * If the buf contains the string "selective" then lpfc_selective_reset() 1422 * is called to perform the reset. 1423 * 1424 * Notes: 1425 * Assumes any error from lpfc_selective_reset() will be negative. 1426 * If lpfc_selective_reset() returns zero then the length of the buffer 1427 * is returned which indicates success 1428 * 1429 * Returns: 1430 * -EINVAL if the buffer does not contain the string "selective" 1431 * length of buf if lpfc-selective_reset() if the call succeeds 1432 * return value of lpfc_selective_reset() if the call fails 1433 **/ 1434 static ssize_t 1435 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1436 const char *buf, size_t count) 1437 { 1438 struct Scsi_Host *shost = class_to_shost(dev); 1439 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1440 struct lpfc_hba *phba = vport->phba; 1441 int status = -EINVAL; 1442 1443 if (!phba->cfg_enable_hba_reset) 1444 return -EACCES; 1445 1446 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1447 status = phba->lpfc_selective_reset(phba); 1448 1449 if (status == 0) 1450 return strlen(buf); 1451 else 1452 return status; 1453 } 1454 1455 /** 1456 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1457 * @phba: lpfc_hba pointer. 1458 * 1459 * Description: 1460 * SLI4 interface type-2 device to wait on the sliport status register for 1461 * the readyness after performing a firmware reset. 1462 * 1463 * Returns: 1464 * zero for success, -EPERM when port does not have privilege to perform the 1465 * reset, -EIO when port timeout from recovering from the reset. 1466 * 1467 * Note: 1468 * As the caller will interpret the return code by value, be careful in making 1469 * change or addition to return codes. 1470 **/ 1471 int 1472 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1473 { 1474 struct lpfc_register portstat_reg = {0}; 1475 int i; 1476 1477 msleep(100); 1478 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1479 &portstat_reg.word0)) 1480 return -EIO; 1481 1482 /* verify if privileged for the request operation */ 1483 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1484 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1485 return -EPERM; 1486 1487 /* wait for the SLI port firmware ready after firmware reset */ 1488 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1489 msleep(10); 1490 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1491 &portstat_reg.word0)) 1492 continue; 1493 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1494 continue; 1495 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1496 continue; 1497 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1498 continue; 1499 break; 1500 } 1501 1502 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1503 return 0; 1504 else 1505 return -EIO; 1506 } 1507 1508 /** 1509 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1510 * @phba: lpfc_hba pointer. 1511 * 1512 * Description: 1513 * Request SLI4 interface type-2 device to perform a physical register set 1514 * access. 1515 * 1516 * Returns: 1517 * zero for success 1518 **/ 1519 static ssize_t 1520 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1521 { 1522 struct completion online_compl; 1523 struct pci_dev *pdev = phba->pcidev; 1524 uint32_t before_fc_flag; 1525 uint32_t sriov_nr_virtfn; 1526 uint32_t reg_val; 1527 int status = 0, rc = 0; 1528 int job_posted = 1, sriov_err; 1529 1530 if (!phba->cfg_enable_hba_reset) 1531 return -EACCES; 1532 1533 if ((phba->sli_rev < LPFC_SLI_REV4) || 1534 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1535 LPFC_SLI_INTF_IF_TYPE_2)) 1536 return -EPERM; 1537 1538 /* Keep state if we need to restore back */ 1539 before_fc_flag = phba->pport->fc_flag; 1540 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1541 1542 /* Disable SR-IOV virtual functions if enabled */ 1543 if (phba->cfg_sriov_nr_virtfn) { 1544 pci_disable_sriov(pdev); 1545 phba->cfg_sriov_nr_virtfn = 0; 1546 } 1547 1548 if (opcode == LPFC_FW_DUMP) 1549 phba->hba_flag |= HBA_FW_DUMP_OP; 1550 1551 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1552 1553 if (status != 0) { 1554 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1555 return status; 1556 } 1557 1558 /* wait for the device to be quiesced before firmware reset */ 1559 msleep(100); 1560 1561 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1562 LPFC_CTL_PDEV_CTL_OFFSET); 1563 1564 if (opcode == LPFC_FW_DUMP) 1565 reg_val |= LPFC_FW_DUMP_REQUEST; 1566 else if (opcode == LPFC_FW_RESET) 1567 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1568 else if (opcode == LPFC_DV_RESET) 1569 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1570 1571 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1572 LPFC_CTL_PDEV_CTL_OFFSET); 1573 /* flush */ 1574 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1575 1576 /* delay driver action following IF_TYPE_2 reset */ 1577 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1578 1579 if (rc == -EPERM) { 1580 /* no privilege for reset */ 1581 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1582 "3150 No privilege to perform the requested " 1583 "access: x%x\n", reg_val); 1584 } else if (rc == -EIO) { 1585 /* reset failed, there is nothing more we can do */ 1586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1587 "3153 Fail to perform the requested " 1588 "access: x%x\n", reg_val); 1589 return rc; 1590 } 1591 1592 /* keep the original port state */ 1593 if (before_fc_flag & FC_OFFLINE_MODE) 1594 goto out; 1595 1596 init_completion(&online_compl); 1597 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1598 LPFC_EVT_ONLINE); 1599 if (!job_posted) 1600 goto out; 1601 1602 wait_for_completion(&online_compl); 1603 1604 out: 1605 /* in any case, restore the virtual functions enabled as before */ 1606 if (sriov_nr_virtfn) { 1607 sriov_err = 1608 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1609 if (!sriov_err) 1610 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1611 } 1612 1613 /* return proper error code */ 1614 if (!rc) { 1615 if (!job_posted) 1616 rc = -ENOMEM; 1617 else if (status) 1618 rc = -EIO; 1619 } 1620 return rc; 1621 } 1622 1623 /** 1624 * lpfc_nport_evt_cnt_show - Return the number of nport events 1625 * @dev: class device that is converted into a Scsi_host. 1626 * @attr: device attribute, not used. 1627 * @buf: on return contains the ascii number of nport events. 1628 * 1629 * Returns: size of formatted string. 1630 **/ 1631 static ssize_t 1632 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1633 char *buf) 1634 { 1635 struct Scsi_Host *shost = class_to_shost(dev); 1636 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1637 struct lpfc_hba *phba = vport->phba; 1638 1639 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1640 } 1641 1642 static int 1643 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1644 { 1645 LPFC_MBOXQ_t *mbox = NULL; 1646 unsigned long val = 0; 1647 char *pval = NULL; 1648 int rc = 0; 1649 1650 if (!strncmp("enable", buff_out, 1651 strlen("enable"))) { 1652 pval = buff_out + strlen("enable") + 1; 1653 rc = kstrtoul(pval, 0, &val); 1654 if (rc) 1655 return rc; /* Invalid number */ 1656 } else if (!strncmp("disable", buff_out, 1657 strlen("disable"))) { 1658 val = 0; 1659 } else { 1660 return -EINVAL; /* Invalid command */ 1661 } 1662 1663 switch (val) { 1664 case 0: 1665 val = 0x0; /* Disable */ 1666 break; 1667 case 2: 1668 val = 0x1; /* Enable two port trunk */ 1669 break; 1670 case 4: 1671 val = 0x2; /* Enable four port trunk */ 1672 break; 1673 default: 1674 return -EINVAL; 1675 } 1676 1677 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1678 "0070 Set trunk mode with val %ld ", val); 1679 1680 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1681 if (!mbox) 1682 return -ENOMEM; 1683 1684 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1685 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1686 12, LPFC_SLI4_MBX_EMBED); 1687 1688 bf_set(lpfc_mbx_set_trunk_mode, 1689 &mbox->u.mqe.un.set_trunk_mode, 1690 val); 1691 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1692 if (rc) 1693 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1694 "0071 Set trunk mode failed with status: %d", 1695 rc); 1696 if (rc != MBX_TIMEOUT) 1697 mempool_free(mbox, phba->mbox_mem_pool); 1698 1699 return 0; 1700 } 1701 1702 /** 1703 * lpfc_board_mode_show - Return the state of the board 1704 * @dev: class device that is converted into a Scsi_host. 1705 * @attr: device attribute, not used. 1706 * @buf: on return contains the state of the adapter. 1707 * 1708 * Returns: size of formatted string. 1709 **/ 1710 static ssize_t 1711 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1712 char *buf) 1713 { 1714 struct Scsi_Host *shost = class_to_shost(dev); 1715 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1716 struct lpfc_hba *phba = vport->phba; 1717 char * state; 1718 1719 if (phba->link_state == LPFC_HBA_ERROR) 1720 state = "error"; 1721 else if (phba->link_state == LPFC_WARM_START) 1722 state = "warm start"; 1723 else if (phba->link_state == LPFC_INIT_START) 1724 state = "offline"; 1725 else 1726 state = "online"; 1727 1728 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1729 } 1730 1731 /** 1732 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1733 * @dev: class device that is converted into a Scsi_host. 1734 * @attr: device attribute, not used. 1735 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1736 * @count: unused variable. 1737 * 1738 * Returns: 1739 * -EACCES if enable hba reset not enabled 1740 * -EINVAL if the buffer does not contain a valid string (see above) 1741 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1742 * buf length greater than zero indicates success 1743 **/ 1744 static ssize_t 1745 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1746 const char *buf, size_t count) 1747 { 1748 struct Scsi_Host *shost = class_to_shost(dev); 1749 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1750 struct lpfc_hba *phba = vport->phba; 1751 struct completion online_compl; 1752 char *board_mode_str = NULL; 1753 int status = 0; 1754 int rc; 1755 1756 if (!phba->cfg_enable_hba_reset) { 1757 status = -EACCES; 1758 goto board_mode_out; 1759 } 1760 1761 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1762 "3050 lpfc_board_mode set to %s\n", buf); 1763 1764 init_completion(&online_compl); 1765 1766 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1767 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1768 LPFC_EVT_ONLINE); 1769 if (rc == 0) { 1770 status = -ENOMEM; 1771 goto board_mode_out; 1772 } 1773 wait_for_completion(&online_compl); 1774 if (status) 1775 status = -EIO; 1776 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1777 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1778 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1779 if (phba->sli_rev == LPFC_SLI_REV4) 1780 status = -EINVAL; 1781 else 1782 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1783 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1784 if (phba->sli_rev == LPFC_SLI_REV4) 1785 status = -EINVAL; 1786 else 1787 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1788 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1789 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1790 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1791 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1792 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1793 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1794 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1795 == 0) 1796 status = lpfc_reset_pci_bus(phba); 1797 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1798 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1799 else 1800 status = -EINVAL; 1801 1802 board_mode_out: 1803 if (!status) 1804 return strlen(buf); 1805 else { 1806 board_mode_str = strchr(buf, '\n'); 1807 if (board_mode_str) 1808 *board_mode_str = '\0'; 1809 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1810 "3097 Failed \"%s\", status(%d), " 1811 "fc_flag(x%x)\n", 1812 buf, status, phba->pport->fc_flag); 1813 return status; 1814 } 1815 } 1816 1817 /** 1818 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1819 * @phba: pointer to the adapter structure. 1820 * @mxri: max xri count. 1821 * @axri: available xri count. 1822 * @mrpi: max rpi count. 1823 * @arpi: available rpi count. 1824 * @mvpi: max vpi count. 1825 * @avpi: available vpi count. 1826 * 1827 * Description: 1828 * If an integer pointer for an count is not null then the value for the 1829 * count is returned. 1830 * 1831 * Returns: 1832 * zero on error 1833 * one for success 1834 **/ 1835 static int 1836 lpfc_get_hba_info(struct lpfc_hba *phba, 1837 uint32_t *mxri, uint32_t *axri, 1838 uint32_t *mrpi, uint32_t *arpi, 1839 uint32_t *mvpi, uint32_t *avpi) 1840 { 1841 struct lpfc_mbx_read_config *rd_config; 1842 LPFC_MBOXQ_t *pmboxq; 1843 MAILBOX_t *pmb; 1844 int rc = 0; 1845 uint32_t max_vpi; 1846 1847 /* 1848 * prevent udev from issuing mailbox commands until the port is 1849 * configured. 1850 */ 1851 if (phba->link_state < LPFC_LINK_DOWN || 1852 !phba->mbox_mem_pool || 1853 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1854 return 0; 1855 1856 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1857 return 0; 1858 1859 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1860 if (!pmboxq) 1861 return 0; 1862 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1863 1864 pmb = &pmboxq->u.mb; 1865 pmb->mbxCommand = MBX_READ_CONFIG; 1866 pmb->mbxOwner = OWN_HOST; 1867 pmboxq->ctx_buf = NULL; 1868 1869 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1870 rc = MBX_NOT_FINISHED; 1871 else 1872 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1873 1874 if (rc != MBX_SUCCESS) { 1875 if (rc != MBX_TIMEOUT) 1876 mempool_free(pmboxq, phba->mbox_mem_pool); 1877 return 0; 1878 } 1879 1880 if (phba->sli_rev == LPFC_SLI_REV4) { 1881 rd_config = &pmboxq->u.mqe.un.rd_config; 1882 if (mrpi) 1883 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1884 if (arpi) 1885 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1886 phba->sli4_hba.max_cfg_param.rpi_used; 1887 if (mxri) 1888 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1889 if (axri) 1890 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1891 phba->sli4_hba.max_cfg_param.xri_used; 1892 1893 /* Account for differences with SLI-3. Get vpi count from 1894 * mailbox data and subtract one for max vpi value. 1895 */ 1896 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1897 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1898 1899 /* Limit the max we support */ 1900 if (max_vpi > LPFC_MAX_VPI) 1901 max_vpi = LPFC_MAX_VPI; 1902 if (mvpi) 1903 *mvpi = max_vpi; 1904 if (avpi) 1905 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1906 } else { 1907 if (mrpi) 1908 *mrpi = pmb->un.varRdConfig.max_rpi; 1909 if (arpi) 1910 *arpi = pmb->un.varRdConfig.avail_rpi; 1911 if (mxri) 1912 *mxri = pmb->un.varRdConfig.max_xri; 1913 if (axri) 1914 *axri = pmb->un.varRdConfig.avail_xri; 1915 if (mvpi) 1916 *mvpi = pmb->un.varRdConfig.max_vpi; 1917 if (avpi) { 1918 /* avail_vpi is only valid if link is up and ready */ 1919 if (phba->link_state == LPFC_HBA_READY) 1920 *avpi = pmb->un.varRdConfig.avail_vpi; 1921 else 1922 *avpi = pmb->un.varRdConfig.max_vpi; 1923 } 1924 } 1925 1926 mempool_free(pmboxq, phba->mbox_mem_pool); 1927 return 1; 1928 } 1929 1930 /** 1931 * lpfc_max_rpi_show - Return maximum rpi 1932 * @dev: class device that is converted into a Scsi_host. 1933 * @attr: device attribute, not used. 1934 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1935 * 1936 * Description: 1937 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1938 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1939 * to "Unknown" and the buffer length is returned, therefore the caller 1940 * must check for "Unknown" in the buffer to detect a failure. 1941 * 1942 * Returns: size of formatted string. 1943 **/ 1944 static ssize_t 1945 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1946 char *buf) 1947 { 1948 struct Scsi_Host *shost = class_to_shost(dev); 1949 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1950 struct lpfc_hba *phba = vport->phba; 1951 uint32_t cnt; 1952 1953 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1954 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 1955 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1956 } 1957 1958 /** 1959 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1960 * @dev: class device that is converted into a Scsi_host. 1961 * @attr: device attribute, not used. 1962 * @buf: containing the used rpi count in decimal or "Unknown". 1963 * 1964 * Description: 1965 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1966 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1967 * to "Unknown" and the buffer length is returned, therefore the caller 1968 * must check for "Unknown" in the buffer to detect a failure. 1969 * 1970 * Returns: size of formatted string. 1971 **/ 1972 static ssize_t 1973 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1974 char *buf) 1975 { 1976 struct Scsi_Host *shost = class_to_shost(dev); 1977 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1978 struct lpfc_hba *phba = vport->phba; 1979 uint32_t cnt, acnt; 1980 1981 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1982 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1983 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1984 } 1985 1986 /** 1987 * lpfc_max_xri_show - Return maximum xri 1988 * @dev: class device that is converted into a Scsi_host. 1989 * @attr: device attribute, not used. 1990 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1991 * 1992 * Description: 1993 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1994 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1995 * to "Unknown" and the buffer length is returned, therefore the caller 1996 * must check for "Unknown" in the buffer to detect a failure. 1997 * 1998 * Returns: size of formatted string. 1999 **/ 2000 static ssize_t 2001 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2002 char *buf) 2003 { 2004 struct Scsi_Host *shost = class_to_shost(dev); 2005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2006 struct lpfc_hba *phba = vport->phba; 2007 uint32_t cnt; 2008 2009 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2010 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2011 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2012 } 2013 2014 /** 2015 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2016 * @dev: class device that is converted into a Scsi_host. 2017 * @attr: device attribute, not used. 2018 * @buf: on return contains the used xri count in decimal or "Unknown". 2019 * 2020 * Description: 2021 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2022 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2023 * to "Unknown" and the buffer length is returned, therefore the caller 2024 * must check for "Unknown" in the buffer to detect a failure. 2025 * 2026 * Returns: size of formatted string. 2027 **/ 2028 static ssize_t 2029 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2030 char *buf) 2031 { 2032 struct Scsi_Host *shost = class_to_shost(dev); 2033 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2034 struct lpfc_hba *phba = vport->phba; 2035 uint32_t cnt, acnt; 2036 2037 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2038 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2039 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2040 } 2041 2042 /** 2043 * lpfc_max_vpi_show - Return maximum vpi 2044 * @dev: class device that is converted into a Scsi_host. 2045 * @attr: device attribute, not used. 2046 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2047 * 2048 * Description: 2049 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2050 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2051 * to "Unknown" and the buffer length is returned, therefore the caller 2052 * must check for "Unknown" in the buffer to detect a failure. 2053 * 2054 * Returns: size of formatted string. 2055 **/ 2056 static ssize_t 2057 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2058 char *buf) 2059 { 2060 struct Scsi_Host *shost = class_to_shost(dev); 2061 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2062 struct lpfc_hba *phba = vport->phba; 2063 uint32_t cnt; 2064 2065 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2066 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2067 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2068 } 2069 2070 /** 2071 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2072 * @dev: class device that is converted into a Scsi_host. 2073 * @attr: device attribute, not used. 2074 * @buf: on return contains the used vpi count in decimal or "Unknown". 2075 * 2076 * Description: 2077 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2078 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2079 * to "Unknown" and the buffer length is returned, therefore the caller 2080 * must check for "Unknown" in the buffer to detect a failure. 2081 * 2082 * Returns: size of formatted string. 2083 **/ 2084 static ssize_t 2085 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2086 char *buf) 2087 { 2088 struct Scsi_Host *shost = class_to_shost(dev); 2089 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2090 struct lpfc_hba *phba = vport->phba; 2091 uint32_t cnt, acnt; 2092 2093 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2094 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2095 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2096 } 2097 2098 /** 2099 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2100 * @dev: class device that is converted into a Scsi_host. 2101 * @attr: device attribute, not used. 2102 * @buf: text that must be interpreted to determine if npiv is supported. 2103 * 2104 * Description: 2105 * Buffer will contain text indicating npiv is not suppoerted on the port, 2106 * the port is an NPIV physical port, or it is an npiv virtual port with 2107 * the id of the vport. 2108 * 2109 * Returns: size of formatted string. 2110 **/ 2111 static ssize_t 2112 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2113 char *buf) 2114 { 2115 struct Scsi_Host *shost = class_to_shost(dev); 2116 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2117 struct lpfc_hba *phba = vport->phba; 2118 2119 if (!(phba->max_vpi)) 2120 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2121 if (vport->port_type == LPFC_PHYSICAL_PORT) 2122 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2123 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2124 } 2125 2126 /** 2127 * lpfc_poll_show - Return text about poll support for the adapter 2128 * @dev: class device that is converted into a Scsi_host. 2129 * @attr: device attribute, not used. 2130 * @buf: on return contains the cfg_poll in hex. 2131 * 2132 * Notes: 2133 * cfg_poll should be a lpfc_polling_flags type. 2134 * 2135 * Returns: size of formatted string. 2136 **/ 2137 static ssize_t 2138 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2139 char *buf) 2140 { 2141 struct Scsi_Host *shost = class_to_shost(dev); 2142 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2143 struct lpfc_hba *phba = vport->phba; 2144 2145 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2146 } 2147 2148 /** 2149 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2150 * @dev: class device that is converted into a Scsi_host. 2151 * @attr: device attribute, not used. 2152 * @buf: one or more lpfc_polling_flags values. 2153 * @count: not used. 2154 * 2155 * Notes: 2156 * buf contents converted to integer and checked for a valid value. 2157 * 2158 * Returns: 2159 * -EINVAL if the buffer connot be converted or is out of range 2160 * length of the buf on success 2161 **/ 2162 static ssize_t 2163 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2164 const char *buf, size_t count) 2165 { 2166 struct Scsi_Host *shost = class_to_shost(dev); 2167 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2168 struct lpfc_hba *phba = vport->phba; 2169 uint32_t creg_val; 2170 uint32_t old_val; 2171 int val=0; 2172 2173 if (!isdigit(buf[0])) 2174 return -EINVAL; 2175 2176 if (sscanf(buf, "%i", &val) != 1) 2177 return -EINVAL; 2178 2179 if ((val & 0x3) != val) 2180 return -EINVAL; 2181 2182 if (phba->sli_rev == LPFC_SLI_REV4) 2183 val = 0; 2184 2185 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2186 "3051 lpfc_poll changed from %d to %d\n", 2187 phba->cfg_poll, val); 2188 2189 spin_lock_irq(&phba->hbalock); 2190 2191 old_val = phba->cfg_poll; 2192 2193 if (val & ENABLE_FCP_RING_POLLING) { 2194 if ((val & DISABLE_FCP_RING_INT) && 2195 !(old_val & DISABLE_FCP_RING_INT)) { 2196 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2197 spin_unlock_irq(&phba->hbalock); 2198 return -EINVAL; 2199 } 2200 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2201 writel(creg_val, phba->HCregaddr); 2202 readl(phba->HCregaddr); /* flush */ 2203 2204 lpfc_poll_start_timer(phba); 2205 } 2206 } else if (val != 0x0) { 2207 spin_unlock_irq(&phba->hbalock); 2208 return -EINVAL; 2209 } 2210 2211 if (!(val & DISABLE_FCP_RING_INT) && 2212 (old_val & DISABLE_FCP_RING_INT)) 2213 { 2214 spin_unlock_irq(&phba->hbalock); 2215 del_timer(&phba->fcp_poll_timer); 2216 spin_lock_irq(&phba->hbalock); 2217 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2218 spin_unlock_irq(&phba->hbalock); 2219 return -EINVAL; 2220 } 2221 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2222 writel(creg_val, phba->HCregaddr); 2223 readl(phba->HCregaddr); /* flush */ 2224 } 2225 2226 phba->cfg_poll = val; 2227 2228 spin_unlock_irq(&phba->hbalock); 2229 2230 return strlen(buf); 2231 } 2232 2233 /** 2234 * lpfc_fips_level_show - Return the current FIPS level for the HBA 2235 * @dev: class unused variable. 2236 * @attr: device attribute, not used. 2237 * @buf: on return contains the module description text. 2238 * 2239 * Returns: size of formatted string. 2240 **/ 2241 static ssize_t 2242 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 2243 char *buf) 2244 { 2245 struct Scsi_Host *shost = class_to_shost(dev); 2246 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2247 struct lpfc_hba *phba = vport->phba; 2248 2249 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 2250 } 2251 2252 /** 2253 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 2254 * @dev: class unused variable. 2255 * @attr: device attribute, not used. 2256 * @buf: on return contains the module description text. 2257 * 2258 * Returns: size of formatted string. 2259 **/ 2260 static ssize_t 2261 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 2262 char *buf) 2263 { 2264 struct Scsi_Host *shost = class_to_shost(dev); 2265 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2266 struct lpfc_hba *phba = vport->phba; 2267 2268 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 2269 } 2270 2271 /** 2272 * lpfc_dss_show - Return the current state of dss and the configured state 2273 * @dev: class converted to a Scsi_host structure. 2274 * @attr: device attribute, not used. 2275 * @buf: on return contains the formatted text. 2276 * 2277 * Returns: size of formatted string. 2278 **/ 2279 static ssize_t 2280 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 2281 char *buf) 2282 { 2283 struct Scsi_Host *shost = class_to_shost(dev); 2284 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2285 struct lpfc_hba *phba = vport->phba; 2286 2287 return scnprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 2288 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 2289 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 2290 "" : "Not "); 2291 } 2292 2293 /** 2294 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2295 * @dev: class converted to a Scsi_host structure. 2296 * @attr: device attribute, not used. 2297 * @buf: on return contains the formatted support level. 2298 * 2299 * Description: 2300 * Returns the maximum number of virtual functions a physical function can 2301 * support, 0 will be returned if called on virtual function. 2302 * 2303 * Returns: size of formatted string. 2304 **/ 2305 static ssize_t 2306 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2307 struct device_attribute *attr, 2308 char *buf) 2309 { 2310 struct Scsi_Host *shost = class_to_shost(dev); 2311 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2312 struct lpfc_hba *phba = vport->phba; 2313 uint16_t max_nr_virtfn; 2314 2315 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2316 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2317 } 2318 2319 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2320 { 2321 return val >= min && val <= max; 2322 } 2323 2324 /** 2325 * lpfc_enable_bbcr_set: Sets an attribute value. 2326 * @phba: pointer the the adapter structure. 2327 * @val: integer attribute value. 2328 * 2329 * Description: 2330 * Validates the min and max values then sets the 2331 * adapter config field if in the valid range. prints error message 2332 * and does not set the parameter if invalid. 2333 * 2334 * Returns: 2335 * zero on success 2336 * -EINVAL if val is invalid 2337 */ 2338 static ssize_t 2339 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2340 { 2341 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2343 "3068 %s_enable_bbcr changed from %d to %d\n", 2344 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2345 phba->cfg_enable_bbcr = val; 2346 return 0; 2347 } 2348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2349 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2350 LPFC_DRIVER_NAME, val); 2351 return -EINVAL; 2352 } 2353 2354 /** 2355 * lpfc_param_show - Return a cfg attribute value in decimal 2356 * 2357 * Description: 2358 * Macro that given an attr e.g. hba_queue_depth expands 2359 * into a function with the name lpfc_hba_queue_depth_show. 2360 * 2361 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2362 * @dev: class device that is converted into a Scsi_host. 2363 * @attr: device attribute, not used. 2364 * @buf: on return contains the attribute value in decimal. 2365 * 2366 * Returns: size of formatted string. 2367 **/ 2368 #define lpfc_param_show(attr) \ 2369 static ssize_t \ 2370 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2371 char *buf) \ 2372 { \ 2373 struct Scsi_Host *shost = class_to_shost(dev);\ 2374 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2375 struct lpfc_hba *phba = vport->phba;\ 2376 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2377 phba->cfg_##attr);\ 2378 } 2379 2380 /** 2381 * lpfc_param_hex_show - Return a cfg attribute value in hex 2382 * 2383 * Description: 2384 * Macro that given an attr e.g. hba_queue_depth expands 2385 * into a function with the name lpfc_hba_queue_depth_show 2386 * 2387 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2388 * @dev: class device that is converted into a Scsi_host. 2389 * @attr: device attribute, not used. 2390 * @buf: on return contains the attribute value in hexadecimal. 2391 * 2392 * Returns: size of formatted string. 2393 **/ 2394 #define lpfc_param_hex_show(attr) \ 2395 static ssize_t \ 2396 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2397 char *buf) \ 2398 { \ 2399 struct Scsi_Host *shost = class_to_shost(dev);\ 2400 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2401 struct lpfc_hba *phba = vport->phba;\ 2402 uint val = 0;\ 2403 val = phba->cfg_##attr;\ 2404 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2405 phba->cfg_##attr);\ 2406 } 2407 2408 /** 2409 * lpfc_param_init - Initializes a cfg attribute 2410 * 2411 * Description: 2412 * Macro that given an attr e.g. hba_queue_depth expands 2413 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2414 * takes a default argument, a minimum and maximum argument. 2415 * 2416 * lpfc_##attr##_init: Initializes an attribute. 2417 * @phba: pointer the the adapter structure. 2418 * @val: integer attribute value. 2419 * 2420 * Validates the min and max values then sets the adapter config field 2421 * accordingly, or uses the default if out of range and prints an error message. 2422 * 2423 * Returns: 2424 * zero on success 2425 * -EINVAL if default used 2426 **/ 2427 #define lpfc_param_init(attr, default, minval, maxval) \ 2428 static int \ 2429 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2430 { \ 2431 if (lpfc_rangecheck(val, minval, maxval)) {\ 2432 phba->cfg_##attr = val;\ 2433 return 0;\ 2434 }\ 2435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2436 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2437 "allowed range is ["#minval", "#maxval"]\n", val); \ 2438 phba->cfg_##attr = default;\ 2439 return -EINVAL;\ 2440 } 2441 2442 /** 2443 * lpfc_param_set - Set a cfg attribute value 2444 * 2445 * Description: 2446 * Macro that given an attr e.g. hba_queue_depth expands 2447 * into a function with the name lpfc_hba_queue_depth_set 2448 * 2449 * lpfc_##attr##_set: Sets an attribute value. 2450 * @phba: pointer the the adapter structure. 2451 * @val: integer attribute value. 2452 * 2453 * Description: 2454 * Validates the min and max values then sets the 2455 * adapter config field if in the valid range. prints error message 2456 * and does not set the parameter if invalid. 2457 * 2458 * Returns: 2459 * zero on success 2460 * -EINVAL if val is invalid 2461 **/ 2462 #define lpfc_param_set(attr, default, minval, maxval) \ 2463 static int \ 2464 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2465 { \ 2466 if (lpfc_rangecheck(val, minval, maxval)) {\ 2467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2468 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2469 phba->cfg_##attr, val); \ 2470 phba->cfg_##attr = val;\ 2471 return 0;\ 2472 }\ 2473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2474 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2475 "allowed range is ["#minval", "#maxval"]\n", val); \ 2476 return -EINVAL;\ 2477 } 2478 2479 /** 2480 * lpfc_param_store - Set a vport attribute value 2481 * 2482 * Description: 2483 * Macro that given an attr e.g. hba_queue_depth expands 2484 * into a function with the name lpfc_hba_queue_depth_store. 2485 * 2486 * lpfc_##attr##_store: Set an sttribute value. 2487 * @dev: class device that is converted into a Scsi_host. 2488 * @attr: device attribute, not used. 2489 * @buf: contains the attribute value in ascii. 2490 * @count: not used. 2491 * 2492 * Description: 2493 * Convert the ascii text number to an integer, then 2494 * use the lpfc_##attr##_set function to set the value. 2495 * 2496 * Returns: 2497 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2498 * length of buffer upon success. 2499 **/ 2500 #define lpfc_param_store(attr) \ 2501 static ssize_t \ 2502 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2503 const char *buf, size_t count) \ 2504 { \ 2505 struct Scsi_Host *shost = class_to_shost(dev);\ 2506 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2507 struct lpfc_hba *phba = vport->phba;\ 2508 uint val = 0;\ 2509 if (!isdigit(buf[0]))\ 2510 return -EINVAL;\ 2511 if (sscanf(buf, "%i", &val) != 1)\ 2512 return -EINVAL;\ 2513 if (lpfc_##attr##_set(phba, val) == 0) \ 2514 return strlen(buf);\ 2515 else \ 2516 return -EINVAL;\ 2517 } 2518 2519 /** 2520 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2521 * 2522 * Description: 2523 * Macro that given an attr e.g. hba_queue_depth expands 2524 * into a function with the name lpfc_hba_queue_depth_show 2525 * 2526 * lpfc_##attr##_show: prints the attribute value in decimal. 2527 * @dev: class device that is converted into a Scsi_host. 2528 * @attr: device attribute, not used. 2529 * @buf: on return contains the attribute value in decimal. 2530 * 2531 * Returns: length of formatted string. 2532 **/ 2533 #define lpfc_vport_param_show(attr) \ 2534 static ssize_t \ 2535 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2536 char *buf) \ 2537 { \ 2538 struct Scsi_Host *shost = class_to_shost(dev);\ 2539 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2540 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2541 } 2542 2543 /** 2544 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2545 * 2546 * Description: 2547 * Macro that given an attr e.g. 2548 * hba_queue_depth expands into a function with the name 2549 * lpfc_hba_queue_depth_show 2550 * 2551 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2552 * @dev: class device that is converted into a Scsi_host. 2553 * @attr: device attribute, not used. 2554 * @buf: on return contains the attribute value in hexadecimal. 2555 * 2556 * Returns: length of formatted string. 2557 **/ 2558 #define lpfc_vport_param_hex_show(attr) \ 2559 static ssize_t \ 2560 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2561 char *buf) \ 2562 { \ 2563 struct Scsi_Host *shost = class_to_shost(dev);\ 2564 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2565 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2566 } 2567 2568 /** 2569 * lpfc_vport_param_init - Initialize a vport cfg attribute 2570 * 2571 * Description: 2572 * Macro that given an attr e.g. hba_queue_depth expands 2573 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2574 * takes a default argument, a minimum and maximum argument. 2575 * 2576 * lpfc_##attr##_init: validates the min and max values then sets the 2577 * adapter config field accordingly, or uses the default if out of range 2578 * and prints an error message. 2579 * @phba: pointer the the adapter structure. 2580 * @val: integer attribute value. 2581 * 2582 * Returns: 2583 * zero on success 2584 * -EINVAL if default used 2585 **/ 2586 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2587 static int \ 2588 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2589 { \ 2590 if (lpfc_rangecheck(val, minval, maxval)) {\ 2591 vport->cfg_##attr = val;\ 2592 return 0;\ 2593 }\ 2594 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2595 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2596 "allowed range is ["#minval", "#maxval"]\n", val); \ 2597 vport->cfg_##attr = default;\ 2598 return -EINVAL;\ 2599 } 2600 2601 /** 2602 * lpfc_vport_param_set - Set a vport cfg attribute 2603 * 2604 * Description: 2605 * Macro that given an attr e.g. hba_queue_depth expands 2606 * into a function with the name lpfc_hba_queue_depth_set 2607 * 2608 * lpfc_##attr##_set: validates the min and max values then sets the 2609 * adapter config field if in the valid range. prints error message 2610 * and does not set the parameter if invalid. 2611 * @phba: pointer the the adapter structure. 2612 * @val: integer attribute value. 2613 * 2614 * Returns: 2615 * zero on success 2616 * -EINVAL if val is invalid 2617 **/ 2618 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2619 static int \ 2620 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2621 { \ 2622 if (lpfc_rangecheck(val, minval, maxval)) {\ 2623 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2624 "3053 lpfc_" #attr \ 2625 " changed from %d (x%x) to %d (x%x)\n", \ 2626 vport->cfg_##attr, vport->cfg_##attr, \ 2627 val, val); \ 2628 vport->cfg_##attr = val;\ 2629 return 0;\ 2630 }\ 2631 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2632 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2633 "allowed range is ["#minval", "#maxval"]\n", val); \ 2634 return -EINVAL;\ 2635 } 2636 2637 /** 2638 * lpfc_vport_param_store - Set a vport attribute 2639 * 2640 * Description: 2641 * Macro that given an attr e.g. hba_queue_depth 2642 * expands into a function with the name lpfc_hba_queue_depth_store 2643 * 2644 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2645 * use the lpfc_##attr##_set function to set the value. 2646 * @cdev: class device that is converted into a Scsi_host. 2647 * @buf: contains the attribute value in decimal. 2648 * @count: not used. 2649 * 2650 * Returns: 2651 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2652 * length of buffer upon success. 2653 **/ 2654 #define lpfc_vport_param_store(attr) \ 2655 static ssize_t \ 2656 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2657 const char *buf, size_t count) \ 2658 { \ 2659 struct Scsi_Host *shost = class_to_shost(dev);\ 2660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2661 uint val = 0;\ 2662 if (!isdigit(buf[0]))\ 2663 return -EINVAL;\ 2664 if (sscanf(buf, "%i", &val) != 1)\ 2665 return -EINVAL;\ 2666 if (lpfc_##attr##_set(vport, val) == 0) \ 2667 return strlen(buf);\ 2668 else \ 2669 return -EINVAL;\ 2670 } 2671 2672 2673 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2674 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2675 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2676 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2677 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2678 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2679 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2680 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2681 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2682 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2683 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2684 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2685 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2686 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2687 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2688 lpfc_link_state_store); 2689 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2690 lpfc_option_rom_version_show, NULL); 2691 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2692 lpfc_num_discovered_ports_show, NULL); 2693 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2694 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2695 static DEVICE_ATTR_RO(lpfc_drvr_version); 2696 static DEVICE_ATTR_RO(lpfc_enable_fip); 2697 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2698 lpfc_board_mode_show, lpfc_board_mode_store); 2699 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2700 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2701 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2702 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2703 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2704 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2705 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2706 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2707 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2708 static DEVICE_ATTR_RO(lpfc_fips_level); 2709 static DEVICE_ATTR_RO(lpfc_fips_rev); 2710 static DEVICE_ATTR_RO(lpfc_dss); 2711 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2712 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2713 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2714 NULL); 2715 2716 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2717 #define WWN_SZ 8 2718 /** 2719 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2720 * @buf: WWN string. 2721 * @cnt: Length of string. 2722 * @wwn: Array to receive converted wwn value. 2723 * 2724 * Returns: 2725 * -EINVAL if the buffer does not contain a valid wwn 2726 * 0 success 2727 **/ 2728 static size_t 2729 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2730 { 2731 unsigned int i, j; 2732 2733 /* Count may include a LF at end of string */ 2734 if (buf[cnt-1] == '\n') 2735 cnt--; 2736 2737 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2738 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2739 return -EINVAL; 2740 2741 memset(wwn, 0, WWN_SZ); 2742 2743 /* Validate and store the new name */ 2744 for (i = 0, j = 0; i < 16; i++) { 2745 if ((*buf >= 'a') && (*buf <= 'f')) 2746 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2747 else if ((*buf >= 'A') && (*buf <= 'F')) 2748 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2749 else if ((*buf >= '0') && (*buf <= '9')) 2750 j = ((j << 4) | (*buf++ - '0')); 2751 else 2752 return -EINVAL; 2753 if (i % 2) { 2754 wwn[i/2] = j & 0xff; 2755 j = 0; 2756 } 2757 } 2758 return 0; 2759 } 2760 /** 2761 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2762 * @dev: class device that is converted into a Scsi_host. 2763 * @attr: device attribute, not used. 2764 * @buf: containing the string lpfc_soft_wwn_key. 2765 * @count: must be size of lpfc_soft_wwn_key. 2766 * 2767 * Returns: 2768 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2769 * length of buf indicates success 2770 **/ 2771 static ssize_t 2772 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2773 const char *buf, size_t count) 2774 { 2775 struct Scsi_Host *shost = class_to_shost(dev); 2776 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2777 struct lpfc_hba *phba = vport->phba; 2778 unsigned int cnt = count; 2779 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2780 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2781 2782 /* 2783 * We're doing a simple sanity check for soft_wwpn setting. 2784 * We require that the user write a specific key to enable 2785 * the soft_wwpn attribute to be settable. Once the attribute 2786 * is written, the enable key resets. If further updates are 2787 * desired, the key must be written again to re-enable the 2788 * attribute. 2789 * 2790 * The "key" is not secret - it is a hardcoded string shown 2791 * here. The intent is to protect against the random user or 2792 * application that is just writing attributes. 2793 */ 2794 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2796 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2797 " be enabled: fawwpn is enabled\n"); 2798 return -EINVAL; 2799 } 2800 2801 /* count may include a LF at end of string */ 2802 if (buf[cnt-1] == '\n') 2803 cnt--; 2804 2805 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2806 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2807 return -EINVAL; 2808 2809 phba->soft_wwn_enable = 1; 2810 2811 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2812 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2813 phba->brd_no); 2814 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2815 " The soft_wwpn feature is not supported by Broadcom."); 2816 2817 return count; 2818 } 2819 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2820 2821 /** 2822 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2823 * @dev: class device that is converted into a Scsi_host. 2824 * @attr: device attribute, not used. 2825 * @buf: on return contains the wwpn in hexadecimal. 2826 * 2827 * Returns: size of formatted string. 2828 **/ 2829 static ssize_t 2830 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2831 char *buf) 2832 { 2833 struct Scsi_Host *shost = class_to_shost(dev); 2834 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2835 struct lpfc_hba *phba = vport->phba; 2836 2837 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2838 (unsigned long long)phba->cfg_soft_wwpn); 2839 } 2840 2841 /** 2842 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2843 * @dev class device that is converted into a Scsi_host. 2844 * @attr: device attribute, not used. 2845 * @buf: contains the wwpn in hexadecimal. 2846 * @count: number of wwpn bytes in buf 2847 * 2848 * Returns: 2849 * -EACCES hba reset not enabled, adapter over temp 2850 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2851 * -EIO error taking adapter offline or online 2852 * value of count on success 2853 **/ 2854 static ssize_t 2855 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2856 const char *buf, size_t count) 2857 { 2858 struct Scsi_Host *shost = class_to_shost(dev); 2859 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2860 struct lpfc_hba *phba = vport->phba; 2861 struct completion online_compl; 2862 int stat1 = 0, stat2 = 0; 2863 unsigned int cnt = count; 2864 u8 wwpn[WWN_SZ]; 2865 int rc; 2866 2867 if (!phba->cfg_enable_hba_reset) 2868 return -EACCES; 2869 spin_lock_irq(&phba->hbalock); 2870 if (phba->over_temp_state == HBA_OVER_TEMP) { 2871 spin_unlock_irq(&phba->hbalock); 2872 return -EACCES; 2873 } 2874 spin_unlock_irq(&phba->hbalock); 2875 /* count may include a LF at end of string */ 2876 if (buf[cnt-1] == '\n') 2877 cnt--; 2878 2879 if (!phba->soft_wwn_enable) 2880 return -EINVAL; 2881 2882 /* lock setting wwpn, wwnn down */ 2883 phba->soft_wwn_enable = 0; 2884 2885 rc = lpfc_wwn_set(buf, cnt, wwpn); 2886 if (rc) { 2887 /* not able to set wwpn, unlock it */ 2888 phba->soft_wwn_enable = 1; 2889 return rc; 2890 } 2891 2892 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2893 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2894 if (phba->cfg_soft_wwnn) 2895 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2896 2897 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2898 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2899 2900 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2901 if (stat1) 2902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2903 "0463 lpfc_soft_wwpn attribute set failed to " 2904 "reinit adapter - %d\n", stat1); 2905 init_completion(&online_compl); 2906 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2907 LPFC_EVT_ONLINE); 2908 if (rc == 0) 2909 return -ENOMEM; 2910 2911 wait_for_completion(&online_compl); 2912 if (stat2) 2913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2914 "0464 lpfc_soft_wwpn attribute set failed to " 2915 "reinit adapter - %d\n", stat2); 2916 return (stat1 || stat2) ? -EIO : count; 2917 } 2918 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2919 2920 /** 2921 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2922 * @dev: class device that is converted into a Scsi_host. 2923 * @attr: device attribute, not used. 2924 * @buf: on return contains the wwnn in hexadecimal. 2925 * 2926 * Returns: size of formatted string. 2927 **/ 2928 static ssize_t 2929 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2930 char *buf) 2931 { 2932 struct Scsi_Host *shost = class_to_shost(dev); 2933 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2934 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2935 (unsigned long long)phba->cfg_soft_wwnn); 2936 } 2937 2938 /** 2939 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2940 * @cdev: class device that is converted into a Scsi_host. 2941 * @buf: contains the ww node name in hexadecimal. 2942 * @count: number of wwnn bytes in buf. 2943 * 2944 * Returns: 2945 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2946 * value of count on success 2947 **/ 2948 static ssize_t 2949 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2950 const char *buf, size_t count) 2951 { 2952 struct Scsi_Host *shost = class_to_shost(dev); 2953 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2954 unsigned int cnt = count; 2955 u8 wwnn[WWN_SZ]; 2956 int rc; 2957 2958 /* count may include a LF at end of string */ 2959 if (buf[cnt-1] == '\n') 2960 cnt--; 2961 2962 if (!phba->soft_wwn_enable) 2963 return -EINVAL; 2964 2965 rc = lpfc_wwn_set(buf, cnt, wwnn); 2966 if (rc) { 2967 /* Allow wwnn to be set many times, as long as the enable 2968 * is set. However, once the wwpn is set, everything locks. 2969 */ 2970 return rc; 2971 } 2972 2973 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2974 2975 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2976 "lpfc%d: soft_wwnn set. Value will take effect upon " 2977 "setting of the soft_wwpn\n", phba->brd_no); 2978 2979 return count; 2980 } 2981 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2982 2983 /** 2984 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2985 * Optimized Access Storage (OAS) operations. 2986 * @dev: class device that is converted into a Scsi_host. 2987 * @attr: device attribute, not used. 2988 * @buf: buffer for passing information. 2989 * 2990 * Returns: 2991 * value of count 2992 **/ 2993 static ssize_t 2994 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2995 char *buf) 2996 { 2997 struct Scsi_Host *shost = class_to_shost(dev); 2998 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2999 3000 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3001 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3002 } 3003 3004 /** 3005 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3006 * Optimized Access Storage (OAS) operations. 3007 * @dev: class device that is converted into a Scsi_host. 3008 * @attr: device attribute, not used. 3009 * @buf: buffer for passing information. 3010 * @count: Size of the data buffer. 3011 * 3012 * Returns: 3013 * -EINVAL count is invalid, invalid wwpn byte invalid 3014 * -EPERM oas is not supported by hba 3015 * value of count on success 3016 **/ 3017 static ssize_t 3018 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3019 const char *buf, size_t count) 3020 { 3021 struct Scsi_Host *shost = class_to_shost(dev); 3022 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3023 unsigned int cnt = count; 3024 uint8_t wwpn[WWN_SZ]; 3025 int rc; 3026 3027 if (!phba->cfg_fof) 3028 return -EPERM; 3029 3030 /* count may include a LF at end of string */ 3031 if (buf[cnt-1] == '\n') 3032 cnt--; 3033 3034 rc = lpfc_wwn_set(buf, cnt, wwpn); 3035 if (rc) 3036 return rc; 3037 3038 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3039 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3040 if (wwn_to_u64(wwpn) == 0) 3041 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3042 else 3043 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3044 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3045 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3046 return count; 3047 } 3048 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3049 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3050 3051 /** 3052 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3053 * Optimized Access Storage (OAS) operations. 3054 * @dev: class device that is converted into a Scsi_host. 3055 * @attr: device attribute, not used. 3056 * @buf: buffer for passing information. 3057 * 3058 * Returns: 3059 * value of count 3060 **/ 3061 static ssize_t 3062 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3063 char *buf) 3064 { 3065 struct Scsi_Host *shost = class_to_shost(dev); 3066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3067 3068 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3069 } 3070 3071 /** 3072 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3073 * Optimized Access Storage (OAS) operations. 3074 * @dev: class device that is converted into a Scsi_host. 3075 * @attr: device attribute, not used. 3076 * @buf: buffer for passing information. 3077 * @count: Size of the data buffer. 3078 * 3079 * Returns: 3080 * -EINVAL count is invalid, invalid wwpn byte invalid 3081 * -EPERM oas is not supported by hba 3082 * value of count on success 3083 **/ 3084 static ssize_t 3085 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3086 const char *buf, size_t count) 3087 { 3088 struct Scsi_Host *shost = class_to_shost(dev); 3089 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3090 unsigned int cnt = count; 3091 unsigned long val; 3092 int ret; 3093 3094 if (!phba->cfg_fof) 3095 return -EPERM; 3096 3097 /* count may include a LF at end of string */ 3098 if (buf[cnt-1] == '\n') 3099 cnt--; 3100 3101 ret = kstrtoul(buf, 0, &val); 3102 if (ret || (val > 0x7f)) 3103 return -EINVAL; 3104 3105 if (val) 3106 phba->cfg_oas_priority = (uint8_t)val; 3107 else 3108 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3109 return count; 3110 } 3111 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3112 lpfc_oas_priority_show, lpfc_oas_priority_store); 3113 3114 /** 3115 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3116 * for Optimized Access Storage (OAS) operations. 3117 * @dev: class device that is converted into a Scsi_host. 3118 * @attr: device attribute, not used. 3119 * @buf: buffer for passing information. 3120 * 3121 * Returns: 3122 * value of count on success 3123 **/ 3124 static ssize_t 3125 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3126 char *buf) 3127 { 3128 struct Scsi_Host *shost = class_to_shost(dev); 3129 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3130 3131 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3132 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3133 } 3134 3135 /** 3136 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3137 * for Optimized Access Storage (OAS) operations. 3138 * @dev: class device that is converted into a Scsi_host. 3139 * @attr: device attribute, not used. 3140 * @buf: buffer for passing information. 3141 * @count: Size of the data buffer. 3142 * 3143 * Returns: 3144 * -EINVAL count is invalid, invalid wwpn byte invalid 3145 * -EPERM oas is not supported by hba 3146 * value of count on success 3147 **/ 3148 static ssize_t 3149 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3150 const char *buf, size_t count) 3151 { 3152 struct Scsi_Host *shost = class_to_shost(dev); 3153 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3154 unsigned int cnt = count; 3155 uint8_t wwpn[WWN_SZ]; 3156 int rc; 3157 3158 if (!phba->cfg_fof) 3159 return -EPERM; 3160 3161 /* count may include a LF at end of string */ 3162 if (buf[cnt-1] == '\n') 3163 cnt--; 3164 3165 rc = lpfc_wwn_set(buf, cnt, wwpn); 3166 if (rc) 3167 return rc; 3168 3169 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3170 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3171 if (wwn_to_u64(wwpn) == 0) 3172 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3173 else 3174 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3175 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3176 if (phba->cfg_oas_priority == 0) 3177 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3178 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3179 return count; 3180 } 3181 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3182 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3183 3184 /** 3185 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3186 * of whether luns will be enabled or disabled 3187 * for Optimized Access Storage (OAS) operations. 3188 * @dev: class device that is converted into a Scsi_host. 3189 * @attr: device attribute, not used. 3190 * @buf: buffer for passing information. 3191 * 3192 * Returns: 3193 * size of formatted string. 3194 **/ 3195 static ssize_t 3196 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3197 char *buf) 3198 { 3199 struct Scsi_Host *shost = class_to_shost(dev); 3200 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3201 3202 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3203 } 3204 3205 /** 3206 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3207 * of whether luns will be enabled or disabled 3208 * for Optimized Access Storage (OAS) operations. 3209 * @dev: class device that is converted into a Scsi_host. 3210 * @attr: device attribute, not used. 3211 * @buf: buffer for passing information. 3212 * @count: Size of the data buffer. 3213 * 3214 * Returns: 3215 * -EINVAL count is invalid, invalid wwpn byte invalid 3216 * -EPERM oas is not supported by hba 3217 * value of count on success 3218 **/ 3219 static ssize_t 3220 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3221 const char *buf, size_t count) 3222 { 3223 struct Scsi_Host *shost = class_to_shost(dev); 3224 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3225 int val = 0; 3226 3227 if (!phba->cfg_fof) 3228 return -EPERM; 3229 3230 if (!isdigit(buf[0])) 3231 return -EINVAL; 3232 3233 if (sscanf(buf, "%i", &val) != 1) 3234 return -EINVAL; 3235 3236 if ((val != 0) && (val != 1)) 3237 return -EINVAL; 3238 3239 phba->cfg_oas_lun_state = val; 3240 return strlen(buf); 3241 } 3242 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3243 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3244 3245 /** 3246 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3247 * Storage (OAS) lun returned by the 3248 * lpfc_oas_lun_show function. 3249 * @dev: class device that is converted into a Scsi_host. 3250 * @attr: device attribute, not used. 3251 * @buf: buffer for passing information. 3252 * 3253 * Returns: 3254 * size of formatted string. 3255 **/ 3256 static ssize_t 3257 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3258 char *buf) 3259 { 3260 struct Scsi_Host *shost = class_to_shost(dev); 3261 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3262 3263 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3264 return -EFAULT; 3265 3266 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3267 } 3268 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3269 lpfc_oas_lun_status_show, NULL); 3270 3271 3272 /** 3273 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3274 * (OAS) operations. 3275 * @phba: lpfc_hba pointer. 3276 * @ndlp: pointer to fcp target node. 3277 * @lun: the fc lun for setting oas state. 3278 * @oas_state: the oas state to be set to the lun. 3279 * 3280 * Returns: 3281 * SUCCESS : 0 3282 * -EPERM OAS is not enabled or not supported by this port. 3283 * 3284 */ 3285 static size_t 3286 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3287 uint8_t tgt_wwpn[], uint64_t lun, 3288 uint32_t oas_state, uint8_t pri) 3289 { 3290 3291 int rc = 0; 3292 3293 if (!phba->cfg_fof) 3294 return -EPERM; 3295 3296 if (oas_state) { 3297 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3298 (struct lpfc_name *)tgt_wwpn, 3299 lun, pri)) 3300 rc = -ENOMEM; 3301 } else { 3302 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3303 (struct lpfc_name *)tgt_wwpn, lun, pri); 3304 } 3305 return rc; 3306 3307 } 3308 3309 /** 3310 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3311 * Access Storage (OAS) operations. 3312 * @phba: lpfc_hba pointer. 3313 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3314 * @tgt_wwpn: wwpn of the target associated with the returned lun 3315 * @lun_status: status of the lun returned lun 3316 * 3317 * Returns the first or next lun enabled for OAS operations for the vport/target 3318 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3319 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3320 * 3321 * Return: 3322 * lun that is OAS enabled for the vport/target 3323 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3324 */ 3325 static uint64_t 3326 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3327 uint8_t tgt_wwpn[], uint32_t *lun_status, 3328 uint32_t *lun_pri) 3329 { 3330 uint64_t found_lun; 3331 3332 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3333 return NOT_OAS_ENABLED_LUN; 3334 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3335 phba->sli4_hba.oas_next_vpt_wwpn, 3336 (struct lpfc_name *) 3337 phba->sli4_hba.oas_next_tgt_wwpn, 3338 &phba->sli4_hba.oas_next_lun, 3339 (struct lpfc_name *)vpt_wwpn, 3340 (struct lpfc_name *)tgt_wwpn, 3341 &found_lun, lun_status, lun_pri)) 3342 return found_lun; 3343 else 3344 return NOT_OAS_ENABLED_LUN; 3345 } 3346 3347 /** 3348 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3349 * @phba: lpfc_hba pointer. 3350 * @vpt_wwpn: vport wwpn by reference. 3351 * @tgt_wwpn: target wwpn by reference. 3352 * @lun: the fc lun for setting oas state. 3353 * @oas_state: the oas state to be set to the oas_lun. 3354 * 3355 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3356 * a lun for OAS operations. 3357 * 3358 * Return: 3359 * SUCCESS: 0 3360 * -ENOMEM: failed to enable an lun for OAS operations 3361 * -EPERM: OAS is not enabled 3362 */ 3363 static ssize_t 3364 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3365 uint8_t tgt_wwpn[], uint64_t lun, 3366 uint32_t oas_state, uint8_t pri) 3367 { 3368 3369 int rc; 3370 3371 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3372 oas_state, pri); 3373 return rc; 3374 } 3375 3376 /** 3377 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3378 * @dev: class device that is converted into a Scsi_host. 3379 * @attr: device attribute, not used. 3380 * @buf: buffer for passing information. 3381 * 3382 * This routine returns a lun enabled for OAS each time the function 3383 * is called. 3384 * 3385 * Returns: 3386 * SUCCESS: size of formatted string. 3387 * -EFAULT: target or vport wwpn was not set properly. 3388 * -EPERM: oas is not enabled. 3389 **/ 3390 static ssize_t 3391 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3392 char *buf) 3393 { 3394 struct Scsi_Host *shost = class_to_shost(dev); 3395 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3396 3397 uint64_t oas_lun; 3398 int len = 0; 3399 3400 if (!phba->cfg_fof) 3401 return -EPERM; 3402 3403 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3404 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3405 return -EFAULT; 3406 3407 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3408 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3409 return -EFAULT; 3410 3411 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3412 phba->cfg_oas_tgt_wwpn, 3413 &phba->cfg_oas_lun_status, 3414 &phba->cfg_oas_priority); 3415 if (oas_lun != NOT_OAS_ENABLED_LUN) 3416 phba->cfg_oas_flags |= OAS_LUN_VALID; 3417 3418 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3419 3420 return len; 3421 } 3422 3423 /** 3424 * lpfc_oas_lun_store - Sets the OAS state for lun 3425 * @dev: class device that is converted into a Scsi_host. 3426 * @attr: device attribute, not used. 3427 * @buf: buffer for passing information. 3428 * 3429 * This function sets the OAS state for lun. Before this function is called, 3430 * the vport wwpn, target wwpn, and oas state need to be set. 3431 * 3432 * Returns: 3433 * SUCCESS: size of formatted string. 3434 * -EFAULT: target or vport wwpn was not set properly. 3435 * -EPERM: oas is not enabled. 3436 * size of formatted string. 3437 **/ 3438 static ssize_t 3439 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3440 const char *buf, size_t count) 3441 { 3442 struct Scsi_Host *shost = class_to_shost(dev); 3443 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3444 uint64_t scsi_lun; 3445 uint32_t pri; 3446 ssize_t rc; 3447 3448 if (!phba->cfg_fof) 3449 return -EPERM; 3450 3451 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3452 return -EFAULT; 3453 3454 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3455 return -EFAULT; 3456 3457 if (!isdigit(buf[0])) 3458 return -EINVAL; 3459 3460 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3461 return -EINVAL; 3462 3463 pri = phba->cfg_oas_priority; 3464 if (pri == 0) 3465 pri = phba->cfg_XLanePriority; 3466 3467 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3468 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3469 "priority 0x%x with oas state %d\n", 3470 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3471 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3472 pri, phba->cfg_oas_lun_state); 3473 3474 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3475 phba->cfg_oas_tgt_wwpn, scsi_lun, 3476 phba->cfg_oas_lun_state, pri); 3477 if (rc) 3478 return rc; 3479 3480 return count; 3481 } 3482 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3483 lpfc_oas_lun_show, lpfc_oas_lun_store); 3484 3485 int lpfc_enable_nvmet_cnt; 3486 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3487 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3488 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3489 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3490 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3491 3492 static int lpfc_poll = 0; 3493 module_param(lpfc_poll, int, S_IRUGO); 3494 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3495 " 0 - none," 3496 " 1 - poll with interrupts enabled" 3497 " 3 - poll and disable FCP ring interrupts"); 3498 3499 static DEVICE_ATTR_RW(lpfc_poll); 3500 3501 int lpfc_no_hba_reset_cnt; 3502 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3503 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3504 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3505 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3506 3507 LPFC_ATTR(sli_mode, 0, 0, 3, 3508 "SLI mode selector:" 3509 " 0 - auto (SLI-3 if supported)," 3510 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3511 " 3 - select SLI-3"); 3512 3513 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3514 "Enable NPIV functionality"); 3515 3516 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3517 "FCF Fast failover=1 Priority failover=2"); 3518 3519 /* 3520 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3521 # 0x0 = disabled, XRI/OXID use not tracked. 3522 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3523 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3524 */ 3525 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3526 "Enable RRQ functionality"); 3527 3528 /* 3529 # lpfc_suppress_link_up: Bring link up at initialization 3530 # 0x0 = bring link up (issue MBX_INIT_LINK) 3531 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3532 # 0x2 = never bring up link 3533 # Default value is 0. 3534 */ 3535 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3536 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3537 "Suppress Link Up at initialization"); 3538 3539 static ssize_t 3540 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3541 { 3542 struct Scsi_Host *shost = class_to_shost(dev); 3543 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3544 3545 return scnprintf(buf, PAGE_SIZE, "%d\n", 3546 phba->sli4_hba.pc_sli4_params.pls); 3547 } 3548 static DEVICE_ATTR(pls, 0444, 3549 lpfc_pls_show, NULL); 3550 3551 static ssize_t 3552 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3553 { 3554 struct Scsi_Host *shost = class_to_shost(dev); 3555 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3556 3557 return scnprintf(buf, PAGE_SIZE, "%d\n", 3558 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3559 } 3560 static DEVICE_ATTR(pt, 0444, 3561 lpfc_pt_show, NULL); 3562 3563 /* 3564 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3565 # 1 - (1024) 3566 # 2 - (2048) 3567 # 3 - (3072) 3568 # 4 - (4096) 3569 # 5 - (5120) 3570 */ 3571 static ssize_t 3572 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3573 { 3574 struct Scsi_Host *shost = class_to_shost(dev); 3575 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3576 3577 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3578 } 3579 3580 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3581 lpfc_iocb_hw_show, NULL); 3582 static ssize_t 3583 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3584 { 3585 struct Scsi_Host *shost = class_to_shost(dev); 3586 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3587 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3588 3589 return scnprintf(buf, PAGE_SIZE, "%d\n", 3590 pring ? pring->txq_max : 0); 3591 } 3592 3593 static DEVICE_ATTR(txq_hw, S_IRUGO, 3594 lpfc_txq_hw_show, NULL); 3595 static ssize_t 3596 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3597 char *buf) 3598 { 3599 struct Scsi_Host *shost = class_to_shost(dev); 3600 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3601 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3602 3603 return scnprintf(buf, PAGE_SIZE, "%d\n", 3604 pring ? pring->txcmplq_max : 0); 3605 } 3606 3607 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3608 lpfc_txcmplq_hw_show, NULL); 3609 3610 /* 3611 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3612 # until the timer expires. Value range is [0,255]. Default value is 30. 3613 */ 3614 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3615 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3616 module_param(lpfc_nodev_tmo, int, 0); 3617 MODULE_PARM_DESC(lpfc_nodev_tmo, 3618 "Seconds driver will hold I/O waiting " 3619 "for a device to come back"); 3620 3621 /** 3622 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3623 * @dev: class converted to a Scsi_host structure. 3624 * @attr: device attribute, not used. 3625 * @buf: on return contains the dev loss timeout in decimal. 3626 * 3627 * Returns: size of formatted string. 3628 **/ 3629 static ssize_t 3630 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3631 char *buf) 3632 { 3633 struct Scsi_Host *shost = class_to_shost(dev); 3634 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3635 3636 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3637 } 3638 3639 /** 3640 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3641 * @vport: lpfc vport structure pointer. 3642 * @val: contains the nodev timeout value. 3643 * 3644 * Description: 3645 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3646 * a kernel error message is printed and zero is returned. 3647 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3648 * Otherwise nodev tmo is set to the default value. 3649 * 3650 * Returns: 3651 * zero if already set or if val is in range 3652 * -EINVAL val out of range 3653 **/ 3654 static int 3655 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3656 { 3657 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3658 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3659 if (val != LPFC_DEF_DEVLOSS_TMO) 3660 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3661 "0407 Ignoring lpfc_nodev_tmo module " 3662 "parameter because lpfc_devloss_tmo " 3663 "is set.\n"); 3664 return 0; 3665 } 3666 3667 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3668 vport->cfg_nodev_tmo = val; 3669 vport->cfg_devloss_tmo = val; 3670 return 0; 3671 } 3672 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3673 "0400 lpfc_nodev_tmo attribute cannot be set to" 3674 " %d, allowed range is [%d, %d]\n", 3675 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3676 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3677 return -EINVAL; 3678 } 3679 3680 /** 3681 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3682 * @vport: lpfc vport structure pointer. 3683 * 3684 * Description: 3685 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3686 **/ 3687 static void 3688 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3689 { 3690 struct Scsi_Host *shost; 3691 struct lpfc_nodelist *ndlp; 3692 #if (IS_ENABLED(CONFIG_NVME_FC)) 3693 struct lpfc_nvme_rport *rport; 3694 struct nvme_fc_remote_port *remoteport = NULL; 3695 #endif 3696 3697 shost = lpfc_shost_from_vport(vport); 3698 spin_lock_irq(shost->host_lock); 3699 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3700 if (!NLP_CHK_NODE_ACT(ndlp)) 3701 continue; 3702 if (ndlp->rport) 3703 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3704 #if (IS_ENABLED(CONFIG_NVME_FC)) 3705 spin_lock(&vport->phba->hbalock); 3706 rport = lpfc_ndlp_get_nrport(ndlp); 3707 if (rport) 3708 remoteport = rport->remoteport; 3709 spin_unlock(&vport->phba->hbalock); 3710 if (rport && remoteport) 3711 nvme_fc_set_remoteport_devloss(remoteport, 3712 vport->cfg_devloss_tmo); 3713 #endif 3714 } 3715 spin_unlock_irq(shost->host_lock); 3716 } 3717 3718 /** 3719 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3720 * @vport: lpfc vport structure pointer. 3721 * @val: contains the tmo value. 3722 * 3723 * Description: 3724 * If the devloss tmo is already set or the vport dev loss tmo has changed 3725 * then a kernel error message is printed and zero is returned. 3726 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3727 * Otherwise nodev tmo is set to the default value. 3728 * 3729 * Returns: 3730 * zero if already set or if val is in range 3731 * -EINVAL val out of range 3732 **/ 3733 static int 3734 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3735 { 3736 if (vport->dev_loss_tmo_changed || 3737 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3738 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3739 "0401 Ignoring change to lpfc_nodev_tmo " 3740 "because lpfc_devloss_tmo is set.\n"); 3741 return 0; 3742 } 3743 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3744 vport->cfg_nodev_tmo = val; 3745 vport->cfg_devloss_tmo = val; 3746 /* 3747 * For compat: set the fc_host dev loss so new rports 3748 * will get the value. 3749 */ 3750 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3751 lpfc_update_rport_devloss_tmo(vport); 3752 return 0; 3753 } 3754 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3755 "0403 lpfc_nodev_tmo attribute cannot be set to " 3756 "%d, allowed range is [%d, %d]\n", 3757 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3758 return -EINVAL; 3759 } 3760 3761 lpfc_vport_param_store(nodev_tmo) 3762 3763 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3764 3765 /* 3766 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3767 # disappear until the timer expires. Value range is [0,255]. Default 3768 # value is 30. 3769 */ 3770 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3771 MODULE_PARM_DESC(lpfc_devloss_tmo, 3772 "Seconds driver will hold I/O waiting " 3773 "for a device to come back"); 3774 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3775 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3776 lpfc_vport_param_show(devloss_tmo) 3777 3778 /** 3779 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3780 * @vport: lpfc vport structure pointer. 3781 * @val: contains the tmo value. 3782 * 3783 * Description: 3784 * If val is in a valid range then set the vport nodev tmo, 3785 * devloss tmo, also set the vport dev loss tmo changed flag. 3786 * Else a kernel error message is printed. 3787 * 3788 * Returns: 3789 * zero if val is in range 3790 * -EINVAL val out of range 3791 **/ 3792 static int 3793 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3794 { 3795 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3796 vport->cfg_nodev_tmo = val; 3797 vport->cfg_devloss_tmo = val; 3798 vport->dev_loss_tmo_changed = 1; 3799 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3800 lpfc_update_rport_devloss_tmo(vport); 3801 return 0; 3802 } 3803 3804 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3805 "0404 lpfc_devloss_tmo attribute cannot be set to " 3806 "%d, allowed range is [%d, %d]\n", 3807 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3808 return -EINVAL; 3809 } 3810 3811 lpfc_vport_param_store(devloss_tmo) 3812 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3813 3814 /* 3815 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3816 * lpfc_suppress_rsp = 0 Disable 3817 * lpfc_suppress_rsp = 1 Enable (default) 3818 * 3819 */ 3820 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3821 "Enable suppress rsp feature is firmware supports it"); 3822 3823 /* 3824 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3825 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3826 * lpfc_nvmet_mrq = 1 use a single RQ pair 3827 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3828 * 3829 */ 3830 LPFC_ATTR_R(nvmet_mrq, 3831 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3832 "Specify number of RQ pairs for processing NVMET cmds"); 3833 3834 /* 3835 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3836 * to each NVMET RQ. Range 64 to 2048, default is 512. 3837 */ 3838 LPFC_ATTR_R(nvmet_mrq_post, 3839 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3840 LPFC_NVMET_RQE_DEF_COUNT, 3841 "Specify number of RQ buffers to initially post"); 3842 3843 /* 3844 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3845 * Supported Values: 1 - register just FCP 3846 * 3 - register both FCP and NVME 3847 * Supported values are [1,3]. Default value is 3 3848 */ 3849 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3850 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3851 "Enable FC4 Protocol support - FCP / NVME"); 3852 3853 /* 3854 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3855 # deluged with LOTS of information. 3856 # You can set a bit mask to record specific types of verbose messages: 3857 # See lpfc_logmsh.h for definitions. 3858 */ 3859 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3860 "Verbose logging bit-mask"); 3861 3862 /* 3863 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3864 # objects that have been registered with the nameserver after login. 3865 */ 3866 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3867 "Deregister nameserver objects before LOGO"); 3868 3869 /* 3870 # lun_queue_depth: This parameter is used to limit the number of outstanding 3871 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3872 # If this parameter value is greater than 1/8th the maximum number of exchanges 3873 # supported by the HBA port, then the lun queue depth will be reduced to 3874 # 1/8th the maximum number of exchanges. 3875 */ 3876 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3877 "Max number of FCP commands we can queue to a specific LUN"); 3878 3879 /* 3880 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3881 # commands per target port. Value range is [10,65535]. Default value is 65535. 3882 */ 3883 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3884 module_param(lpfc_tgt_queue_depth, uint, 0444); 3885 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3886 lpfc_vport_param_show(tgt_queue_depth); 3887 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3888 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3889 3890 /** 3891 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3892 * @phba: pointer the the adapter structure. 3893 * @val: integer attribute value. 3894 * 3895 * Description: Sets the parameter to the new value. 3896 * 3897 * Returns: 3898 * zero on success 3899 * -EINVAL if val is invalid 3900 */ 3901 static int 3902 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3903 { 3904 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3905 struct lpfc_nodelist *ndlp; 3906 3907 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3908 return -EINVAL; 3909 3910 if (val == vport->cfg_tgt_queue_depth) 3911 return 0; 3912 3913 spin_lock_irq(shost->host_lock); 3914 vport->cfg_tgt_queue_depth = val; 3915 3916 /* Next loop thru nodelist and change cmd_qdepth */ 3917 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3918 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3919 3920 spin_unlock_irq(shost->host_lock); 3921 return 0; 3922 } 3923 3924 lpfc_vport_param_store(tgt_queue_depth); 3925 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3926 3927 /* 3928 # hba_queue_depth: This parameter is used to limit the number of outstanding 3929 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3930 # value is greater than the maximum number of exchanges supported by the HBA, 3931 # then maximum number of exchanges supported by the HBA is used to determine 3932 # the hba_queue_depth. 3933 */ 3934 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3935 "Max number of FCP commands we can queue to a lpfc HBA"); 3936 3937 /* 3938 # peer_port_login: This parameter allows/prevents logins 3939 # between peer ports hosted on the same physical port. 3940 # When this parameter is set 0 peer ports of same physical port 3941 # are not allowed to login to each other. 3942 # When this parameter is set 1 peer ports of same physical port 3943 # are allowed to login to each other. 3944 # Default value of this parameter is 0. 3945 */ 3946 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3947 "Allow peer ports on the same physical port to login to each " 3948 "other."); 3949 3950 /* 3951 # restrict_login: This parameter allows/prevents logins 3952 # between Virtual Ports and remote initiators. 3953 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3954 # other initiators and will attempt to PLOGI all remote ports. 3955 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3956 # remote ports and will not attempt to PLOGI to other initiators. 3957 # This parameter does not restrict to the physical port. 3958 # This parameter does not restrict logins to Fabric resident remote ports. 3959 # Default value of this parameter is 1. 3960 */ 3961 static int lpfc_restrict_login = 1; 3962 module_param(lpfc_restrict_login, int, S_IRUGO); 3963 MODULE_PARM_DESC(lpfc_restrict_login, 3964 "Restrict virtual ports login to remote initiators."); 3965 lpfc_vport_param_show(restrict_login); 3966 3967 /** 3968 * lpfc_restrict_login_init - Set the vport restrict login flag 3969 * @vport: lpfc vport structure pointer. 3970 * @val: contains the restrict login value. 3971 * 3972 * Description: 3973 * If val is not in a valid range then log a kernel error message and set 3974 * the vport restrict login to one. 3975 * If the port type is physical clear the restrict login flag and return. 3976 * Else set the restrict login flag to val. 3977 * 3978 * Returns: 3979 * zero if val is in range 3980 * -EINVAL val out of range 3981 **/ 3982 static int 3983 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3984 { 3985 if (val < 0 || val > 1) { 3986 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3987 "0422 lpfc_restrict_login attribute cannot " 3988 "be set to %d, allowed range is [0, 1]\n", 3989 val); 3990 vport->cfg_restrict_login = 1; 3991 return -EINVAL; 3992 } 3993 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3994 vport->cfg_restrict_login = 0; 3995 return 0; 3996 } 3997 vport->cfg_restrict_login = val; 3998 return 0; 3999 } 4000 4001 /** 4002 * lpfc_restrict_login_set - Set the vport restrict login flag 4003 * @vport: lpfc vport structure pointer. 4004 * @val: contains the restrict login value. 4005 * 4006 * Description: 4007 * If val is not in a valid range then log a kernel error message and set 4008 * the vport restrict login to one. 4009 * If the port type is physical and the val is not zero log a kernel 4010 * error message, clear the restrict login flag and return zero. 4011 * Else set the restrict login flag to val. 4012 * 4013 * Returns: 4014 * zero if val is in range 4015 * -EINVAL val out of range 4016 **/ 4017 static int 4018 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4019 { 4020 if (val < 0 || val > 1) { 4021 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4022 "0425 lpfc_restrict_login attribute cannot " 4023 "be set to %d, allowed range is [0, 1]\n", 4024 val); 4025 vport->cfg_restrict_login = 1; 4026 return -EINVAL; 4027 } 4028 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4029 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4030 "0468 lpfc_restrict_login must be 0 for " 4031 "Physical ports.\n"); 4032 vport->cfg_restrict_login = 0; 4033 return 0; 4034 } 4035 vport->cfg_restrict_login = val; 4036 return 0; 4037 } 4038 lpfc_vport_param_store(restrict_login); 4039 static DEVICE_ATTR_RW(lpfc_restrict_login); 4040 4041 /* 4042 # Some disk devices have a "select ID" or "select Target" capability. 4043 # From a protocol standpoint "select ID" usually means select the 4044 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4045 # annex" which contains a table that maps a "select ID" (a number 4046 # between 0 and 7F) to an ALPA. By default, for compatibility with 4047 # older drivers, the lpfc driver scans this table from low ALPA to high 4048 # ALPA. 4049 # 4050 # Turning on the scan-down variable (on = 1, off = 0) will 4051 # cause the lpfc driver to use an inverted table, effectively 4052 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4053 # 4054 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 4055 # and will not work across a fabric. Also this parameter will take 4056 # effect only in the case when ALPA map is not available.) 4057 */ 4058 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4059 "Start scanning for devices from highest ALPA to lowest"); 4060 4061 /* 4062 # lpfc_topology: link topology for init link 4063 # 0x0 = attempt loop mode then point-to-point 4064 # 0x01 = internal loopback mode 4065 # 0x02 = attempt point-to-point mode only 4066 # 0x04 = attempt loop mode only 4067 # 0x06 = attempt point-to-point mode then loop 4068 # Set point-to-point mode if you want to run as an N_Port. 4069 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4070 # Default value is 0. 4071 */ 4072 LPFC_ATTR(topology, 0, 0, 6, 4073 "Select Fibre Channel topology"); 4074 4075 /** 4076 * lpfc_topology_set - Set the adapters topology field 4077 * @phba: lpfc_hba pointer. 4078 * @val: topology value. 4079 * 4080 * Description: 4081 * If val is in a valid range then set the adapter's topology field and 4082 * issue a lip; if the lip fails reset the topology to the old value. 4083 * 4084 * If the value is not in range log a kernel error message and return an error. 4085 * 4086 * Returns: 4087 * zero if val is in range and lip okay 4088 * non-zero return value from lpfc_issue_lip() 4089 * -EINVAL val out of range 4090 **/ 4091 static ssize_t 4092 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4093 const char *buf, size_t count) 4094 { 4095 struct Scsi_Host *shost = class_to_shost(dev); 4096 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4097 struct lpfc_hba *phba = vport->phba; 4098 int val = 0; 4099 int nolip = 0; 4100 const char *val_buf = buf; 4101 int err; 4102 uint32_t prev_val; 4103 4104 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4105 nolip = 1; 4106 val_buf = &buf[strlen("nolip ")]; 4107 } 4108 4109 if (!isdigit(val_buf[0])) 4110 return -EINVAL; 4111 if (sscanf(val_buf, "%i", &val) != 1) 4112 return -EINVAL; 4113 4114 if (val >= 0 && val <= 6) { 4115 prev_val = phba->cfg_topology; 4116 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4117 val == 4) { 4118 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4119 "3113 Loop mode not supported at speed %d\n", 4120 val); 4121 return -EINVAL; 4122 } 4123 /* 4124 * The 'topology' is not a configurable parameter if : 4125 * - persistent topology enabled 4126 * - G7/G6 with no private loop support 4127 */ 4128 4129 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4130 (!phba->sli4_hba.pc_sli4_params.pls && 4131 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4132 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) && 4133 val == 4) { 4134 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4135 "3114 Loop mode not supported\n"); 4136 return -EINVAL; 4137 } 4138 phba->cfg_topology = val; 4139 if (nolip) 4140 return strlen(buf); 4141 4142 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4143 "3054 lpfc_topology changed from %d to %d\n", 4144 prev_val, val); 4145 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4146 phba->fc_topology_changed = 1; 4147 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4148 if (err) { 4149 phba->cfg_topology = prev_val; 4150 return -EINVAL; 4151 } else 4152 return strlen(buf); 4153 } 4154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4155 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4156 "allowed range is [0, 6]\n", 4157 phba->brd_no, val); 4158 return -EINVAL; 4159 } 4160 4161 lpfc_param_show(topology) 4162 static DEVICE_ATTR_RW(lpfc_topology); 4163 4164 /** 4165 * lpfc_static_vport_show: Read callback function for 4166 * lpfc_static_vport sysfs file. 4167 * @dev: Pointer to class device object. 4168 * @attr: device attribute structure. 4169 * @buf: Data buffer. 4170 * 4171 * This function is the read call back function for 4172 * lpfc_static_vport sysfs file. The lpfc_static_vport 4173 * sysfs file report the mageability of the vport. 4174 **/ 4175 static ssize_t 4176 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4177 char *buf) 4178 { 4179 struct Scsi_Host *shost = class_to_shost(dev); 4180 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4181 if (vport->vport_flag & STATIC_VPORT) 4182 sprintf(buf, "1\n"); 4183 else 4184 sprintf(buf, "0\n"); 4185 4186 return strlen(buf); 4187 } 4188 4189 /* 4190 * Sysfs attribute to control the statistical data collection. 4191 */ 4192 static DEVICE_ATTR_RO(lpfc_static_vport); 4193 4194 /** 4195 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4196 * @dev: Pointer to class device. 4197 * @buf: Data buffer. 4198 * @count: Size of the data buffer. 4199 * 4200 * This function get called when a user write to the lpfc_stat_data_ctrl 4201 * sysfs file. This function parse the command written to the sysfs file 4202 * and take appropriate action. These commands are used for controlling 4203 * driver statistical data collection. 4204 * Following are the command this function handles. 4205 * 4206 * setbucket <bucket_type> <base> <step> 4207 * = Set the latency buckets. 4208 * destroybucket = destroy all the buckets. 4209 * start = start data collection 4210 * stop = stop data collection 4211 * reset = reset the collected data 4212 **/ 4213 static ssize_t 4214 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4215 const char *buf, size_t count) 4216 { 4217 struct Scsi_Host *shost = class_to_shost(dev); 4218 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4219 struct lpfc_hba *phba = vport->phba; 4220 #define LPFC_MAX_DATA_CTRL_LEN 1024 4221 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4222 unsigned long i; 4223 char *str_ptr, *token; 4224 struct lpfc_vport **vports; 4225 struct Scsi_Host *v_shost; 4226 char *bucket_type_str, *base_str, *step_str; 4227 unsigned long base, step, bucket_type; 4228 4229 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4230 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4231 return -EINVAL; 4232 4233 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4234 str_ptr = &bucket_data[0]; 4235 /* Ignore this token - this is command token */ 4236 token = strsep(&str_ptr, "\t "); 4237 if (!token) 4238 return -EINVAL; 4239 4240 bucket_type_str = strsep(&str_ptr, "\t "); 4241 if (!bucket_type_str) 4242 return -EINVAL; 4243 4244 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4245 bucket_type = LPFC_LINEAR_BUCKET; 4246 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4247 bucket_type = LPFC_POWER2_BUCKET; 4248 else 4249 return -EINVAL; 4250 4251 base_str = strsep(&str_ptr, "\t "); 4252 if (!base_str) 4253 return -EINVAL; 4254 base = simple_strtoul(base_str, NULL, 0); 4255 4256 step_str = strsep(&str_ptr, "\t "); 4257 if (!step_str) 4258 return -EINVAL; 4259 step = simple_strtoul(step_str, NULL, 0); 4260 if (!step) 4261 return -EINVAL; 4262 4263 /* Block the data collection for every vport */ 4264 vports = lpfc_create_vport_work_array(phba); 4265 if (vports == NULL) 4266 return -ENOMEM; 4267 4268 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4269 v_shost = lpfc_shost_from_vport(vports[i]); 4270 spin_lock_irq(v_shost->host_lock); 4271 /* Block and reset data collection */ 4272 vports[i]->stat_data_blocked = 1; 4273 if (vports[i]->stat_data_enabled) 4274 lpfc_vport_reset_stat_data(vports[i]); 4275 spin_unlock_irq(v_shost->host_lock); 4276 } 4277 4278 /* Set the bucket attributes */ 4279 phba->bucket_type = bucket_type; 4280 phba->bucket_base = base; 4281 phba->bucket_step = step; 4282 4283 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4284 v_shost = lpfc_shost_from_vport(vports[i]); 4285 4286 /* Unblock data collection */ 4287 spin_lock_irq(v_shost->host_lock); 4288 vports[i]->stat_data_blocked = 0; 4289 spin_unlock_irq(v_shost->host_lock); 4290 } 4291 lpfc_destroy_vport_work_array(phba, vports); 4292 return strlen(buf); 4293 } 4294 4295 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4296 vports = lpfc_create_vport_work_array(phba); 4297 if (vports == NULL) 4298 return -ENOMEM; 4299 4300 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4301 v_shost = lpfc_shost_from_vport(vports[i]); 4302 spin_lock_irq(shost->host_lock); 4303 vports[i]->stat_data_blocked = 1; 4304 lpfc_free_bucket(vport); 4305 vport->stat_data_enabled = 0; 4306 vports[i]->stat_data_blocked = 0; 4307 spin_unlock_irq(shost->host_lock); 4308 } 4309 lpfc_destroy_vport_work_array(phba, vports); 4310 phba->bucket_type = LPFC_NO_BUCKET; 4311 phba->bucket_base = 0; 4312 phba->bucket_step = 0; 4313 return strlen(buf); 4314 } 4315 4316 if (!strncmp(buf, "start", strlen("start"))) { 4317 /* If no buckets configured return error */ 4318 if (phba->bucket_type == LPFC_NO_BUCKET) 4319 return -EINVAL; 4320 spin_lock_irq(shost->host_lock); 4321 if (vport->stat_data_enabled) { 4322 spin_unlock_irq(shost->host_lock); 4323 return strlen(buf); 4324 } 4325 lpfc_alloc_bucket(vport); 4326 vport->stat_data_enabled = 1; 4327 spin_unlock_irq(shost->host_lock); 4328 return strlen(buf); 4329 } 4330 4331 if (!strncmp(buf, "stop", strlen("stop"))) { 4332 spin_lock_irq(shost->host_lock); 4333 if (vport->stat_data_enabled == 0) { 4334 spin_unlock_irq(shost->host_lock); 4335 return strlen(buf); 4336 } 4337 lpfc_free_bucket(vport); 4338 vport->stat_data_enabled = 0; 4339 spin_unlock_irq(shost->host_lock); 4340 return strlen(buf); 4341 } 4342 4343 if (!strncmp(buf, "reset", strlen("reset"))) { 4344 if ((phba->bucket_type == LPFC_NO_BUCKET) 4345 || !vport->stat_data_enabled) 4346 return strlen(buf); 4347 spin_lock_irq(shost->host_lock); 4348 vport->stat_data_blocked = 1; 4349 lpfc_vport_reset_stat_data(vport); 4350 vport->stat_data_blocked = 0; 4351 spin_unlock_irq(shost->host_lock); 4352 return strlen(buf); 4353 } 4354 return -EINVAL; 4355 } 4356 4357 4358 /** 4359 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4360 * @dev: Pointer to class device object. 4361 * @buf: Data buffer. 4362 * 4363 * This function is the read call back function for 4364 * lpfc_stat_data_ctrl sysfs file. This function report the 4365 * current statistical data collection state. 4366 **/ 4367 static ssize_t 4368 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4369 char *buf) 4370 { 4371 struct Scsi_Host *shost = class_to_shost(dev); 4372 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4373 struct lpfc_hba *phba = vport->phba; 4374 int index = 0; 4375 int i; 4376 char *bucket_type; 4377 unsigned long bucket_value; 4378 4379 switch (phba->bucket_type) { 4380 case LPFC_LINEAR_BUCKET: 4381 bucket_type = "linear"; 4382 break; 4383 case LPFC_POWER2_BUCKET: 4384 bucket_type = "power2"; 4385 break; 4386 default: 4387 bucket_type = "No Bucket"; 4388 break; 4389 } 4390 4391 sprintf(&buf[index], "Statistical Data enabled :%d, " 4392 "blocked :%d, Bucket type :%s, Bucket base :%d," 4393 " Bucket step :%d\nLatency Ranges :", 4394 vport->stat_data_enabled, vport->stat_data_blocked, 4395 bucket_type, phba->bucket_base, phba->bucket_step); 4396 index = strlen(buf); 4397 if (phba->bucket_type != LPFC_NO_BUCKET) { 4398 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4399 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4400 bucket_value = phba->bucket_base + 4401 phba->bucket_step * i; 4402 else 4403 bucket_value = phba->bucket_base + 4404 (1 << i) * phba->bucket_step; 4405 4406 if (index + 10 > PAGE_SIZE) 4407 break; 4408 sprintf(&buf[index], "%08ld ", bucket_value); 4409 index = strlen(buf); 4410 } 4411 } 4412 sprintf(&buf[index], "\n"); 4413 return strlen(buf); 4414 } 4415 4416 /* 4417 * Sysfs attribute to control the statistical data collection. 4418 */ 4419 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4420 4421 /* 4422 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4423 */ 4424 4425 /* 4426 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4427 * for each target. 4428 */ 4429 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4430 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4431 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4432 4433 4434 /** 4435 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4436 * @filp: sysfs file 4437 * @kobj: Pointer to the kernel object 4438 * @bin_attr: Attribute object 4439 * @buff: Buffer pointer 4440 * @off: File offset 4441 * @count: Buffer size 4442 * 4443 * This function is the read call back function for lpfc_drvr_stat_data 4444 * sysfs file. This function export the statistical data to user 4445 * applications. 4446 **/ 4447 static ssize_t 4448 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4449 struct bin_attribute *bin_attr, 4450 char *buf, loff_t off, size_t count) 4451 { 4452 struct device *dev = container_of(kobj, struct device, 4453 kobj); 4454 struct Scsi_Host *shost = class_to_shost(dev); 4455 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4456 struct lpfc_hba *phba = vport->phba; 4457 int i = 0, index = 0; 4458 unsigned long nport_index; 4459 struct lpfc_nodelist *ndlp = NULL; 4460 nport_index = (unsigned long)off / 4461 MAX_STAT_DATA_SIZE_PER_TARGET; 4462 4463 if (!vport->stat_data_enabled || vport->stat_data_blocked 4464 || (phba->bucket_type == LPFC_NO_BUCKET)) 4465 return 0; 4466 4467 spin_lock_irq(shost->host_lock); 4468 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4469 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 4470 continue; 4471 4472 if (nport_index > 0) { 4473 nport_index--; 4474 continue; 4475 } 4476 4477 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4478 > count) 4479 break; 4480 4481 if (!ndlp->lat_data) 4482 continue; 4483 4484 /* Print the WWN */ 4485 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4486 ndlp->nlp_portname.u.wwn[0], 4487 ndlp->nlp_portname.u.wwn[1], 4488 ndlp->nlp_portname.u.wwn[2], 4489 ndlp->nlp_portname.u.wwn[3], 4490 ndlp->nlp_portname.u.wwn[4], 4491 ndlp->nlp_portname.u.wwn[5], 4492 ndlp->nlp_portname.u.wwn[6], 4493 ndlp->nlp_portname.u.wwn[7]); 4494 4495 index = strlen(buf); 4496 4497 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4498 sprintf(&buf[index], "%010u,", 4499 ndlp->lat_data[i].cmd_count); 4500 index = strlen(buf); 4501 } 4502 sprintf(&buf[index], "\n"); 4503 index = strlen(buf); 4504 } 4505 spin_unlock_irq(shost->host_lock); 4506 return index; 4507 } 4508 4509 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4510 .attr = { 4511 .name = "lpfc_drvr_stat_data", 4512 .mode = S_IRUSR, 4513 }, 4514 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4515 .read = sysfs_drvr_stat_data_read, 4516 .write = NULL, 4517 }; 4518 4519 /* 4520 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4521 # connection. 4522 # Value range is [0,16]. Default value is 0. 4523 */ 4524 /** 4525 * lpfc_link_speed_set - Set the adapters link speed 4526 * @phba: lpfc_hba pointer. 4527 * @val: link speed value. 4528 * 4529 * Description: 4530 * If val is in a valid range then set the adapter's link speed field and 4531 * issue a lip; if the lip fails reset the link speed to the old value. 4532 * 4533 * Notes: 4534 * If the value is not in range log a kernel error message and return an error. 4535 * 4536 * Returns: 4537 * zero if val is in range and lip okay. 4538 * non-zero return value from lpfc_issue_lip() 4539 * -EINVAL val out of range 4540 **/ 4541 static ssize_t 4542 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4543 const char *buf, size_t count) 4544 { 4545 struct Scsi_Host *shost = class_to_shost(dev); 4546 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4547 struct lpfc_hba *phba = vport->phba; 4548 int val = LPFC_USER_LINK_SPEED_AUTO; 4549 int nolip = 0; 4550 const char *val_buf = buf; 4551 int err; 4552 uint32_t prev_val, if_type; 4553 4554 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4555 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4556 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4557 return -EPERM; 4558 4559 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4560 nolip = 1; 4561 val_buf = &buf[strlen("nolip ")]; 4562 } 4563 4564 if (!isdigit(val_buf[0])) 4565 return -EINVAL; 4566 if (sscanf(val_buf, "%i", &val) != 1) 4567 return -EINVAL; 4568 4569 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4570 "3055 lpfc_link_speed changed from %d to %d %s\n", 4571 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4572 4573 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4574 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4575 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4576 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4577 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4578 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4579 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4580 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4582 "2879 lpfc_link_speed attribute cannot be set " 4583 "to %d. Speed is not supported by this port.\n", 4584 val); 4585 return -EINVAL; 4586 } 4587 if (val >= LPFC_USER_LINK_SPEED_16G && 4588 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4590 "3112 lpfc_link_speed attribute cannot be set " 4591 "to %d. Speed is not supported in loop mode.\n", 4592 val); 4593 return -EINVAL; 4594 } 4595 4596 switch (val) { 4597 case LPFC_USER_LINK_SPEED_AUTO: 4598 case LPFC_USER_LINK_SPEED_1G: 4599 case LPFC_USER_LINK_SPEED_2G: 4600 case LPFC_USER_LINK_SPEED_4G: 4601 case LPFC_USER_LINK_SPEED_8G: 4602 case LPFC_USER_LINK_SPEED_16G: 4603 case LPFC_USER_LINK_SPEED_32G: 4604 case LPFC_USER_LINK_SPEED_64G: 4605 prev_val = phba->cfg_link_speed; 4606 phba->cfg_link_speed = val; 4607 if (nolip) 4608 return strlen(buf); 4609 4610 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4611 if (err) { 4612 phba->cfg_link_speed = prev_val; 4613 return -EINVAL; 4614 } 4615 return strlen(buf); 4616 default: 4617 break; 4618 } 4619 4620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4621 "0469 lpfc_link_speed attribute cannot be set to %d, " 4622 "allowed values are [%s]\n", 4623 val, LPFC_LINK_SPEED_STRING); 4624 return -EINVAL; 4625 4626 } 4627 4628 static int lpfc_link_speed = 0; 4629 module_param(lpfc_link_speed, int, S_IRUGO); 4630 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4631 lpfc_param_show(link_speed) 4632 4633 /** 4634 * lpfc_link_speed_init - Set the adapters link speed 4635 * @phba: lpfc_hba pointer. 4636 * @val: link speed value. 4637 * 4638 * Description: 4639 * If val is in a valid range then set the adapter's link speed field. 4640 * 4641 * Notes: 4642 * If the value is not in range log a kernel error message, clear the link 4643 * speed and return an error. 4644 * 4645 * Returns: 4646 * zero if val saved. 4647 * -EINVAL val out of range 4648 **/ 4649 static int 4650 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4651 { 4652 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4654 "3111 lpfc_link_speed of %d cannot " 4655 "support loop mode, setting topology to default.\n", 4656 val); 4657 phba->cfg_topology = 0; 4658 } 4659 4660 switch (val) { 4661 case LPFC_USER_LINK_SPEED_AUTO: 4662 case LPFC_USER_LINK_SPEED_1G: 4663 case LPFC_USER_LINK_SPEED_2G: 4664 case LPFC_USER_LINK_SPEED_4G: 4665 case LPFC_USER_LINK_SPEED_8G: 4666 case LPFC_USER_LINK_SPEED_16G: 4667 case LPFC_USER_LINK_SPEED_32G: 4668 case LPFC_USER_LINK_SPEED_64G: 4669 phba->cfg_link_speed = val; 4670 return 0; 4671 default: 4672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4673 "0405 lpfc_link_speed attribute cannot " 4674 "be set to %d, allowed values are " 4675 "["LPFC_LINK_SPEED_STRING"]\n", val); 4676 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4677 return -EINVAL; 4678 } 4679 } 4680 4681 static DEVICE_ATTR_RW(lpfc_link_speed); 4682 4683 /* 4684 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4685 # 0 = aer disabled or not supported 4686 # 1 = aer supported and enabled (default) 4687 # Value range is [0,1]. Default value is 1. 4688 */ 4689 LPFC_ATTR(aer_support, 1, 0, 1, 4690 "Enable PCIe device AER support"); 4691 lpfc_param_show(aer_support) 4692 4693 /** 4694 * lpfc_aer_support_store - Set the adapter for aer support 4695 * 4696 * @dev: class device that is converted into a Scsi_host. 4697 * @attr: device attribute, not used. 4698 * @buf: containing enable or disable aer flag. 4699 * @count: unused variable. 4700 * 4701 * Description: 4702 * If the val is 1 and currently the device's AER capability was not 4703 * enabled, invoke the kernel's enable AER helper routine, trying to 4704 * enable the device's AER capability. If the helper routine enabling 4705 * AER returns success, update the device's cfg_aer_support flag to 4706 * indicate AER is supported by the device; otherwise, if the device 4707 * AER capability is already enabled to support AER, then do nothing. 4708 * 4709 * If the val is 0 and currently the device's AER support was enabled, 4710 * invoke the kernel's disable AER helper routine. After that, update 4711 * the device's cfg_aer_support flag to indicate AER is not supported 4712 * by the device; otherwise, if the device AER capability is already 4713 * disabled from supporting AER, then do nothing. 4714 * 4715 * Returns: 4716 * length of the buf on success if val is in range the intended mode 4717 * is supported. 4718 * -EINVAL if val out of range or intended mode is not supported. 4719 **/ 4720 static ssize_t 4721 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4722 const char *buf, size_t count) 4723 { 4724 struct Scsi_Host *shost = class_to_shost(dev); 4725 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4726 struct lpfc_hba *phba = vport->phba; 4727 int val = 0, rc = -EINVAL; 4728 4729 if (!isdigit(buf[0])) 4730 return -EINVAL; 4731 if (sscanf(buf, "%i", &val) != 1) 4732 return -EINVAL; 4733 4734 switch (val) { 4735 case 0: 4736 if (phba->hba_flag & HBA_AER_ENABLED) { 4737 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4738 if (!rc) { 4739 spin_lock_irq(&phba->hbalock); 4740 phba->hba_flag &= ~HBA_AER_ENABLED; 4741 spin_unlock_irq(&phba->hbalock); 4742 phba->cfg_aer_support = 0; 4743 rc = strlen(buf); 4744 } else 4745 rc = -EPERM; 4746 } else { 4747 phba->cfg_aer_support = 0; 4748 rc = strlen(buf); 4749 } 4750 break; 4751 case 1: 4752 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4753 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4754 if (!rc) { 4755 spin_lock_irq(&phba->hbalock); 4756 phba->hba_flag |= HBA_AER_ENABLED; 4757 spin_unlock_irq(&phba->hbalock); 4758 phba->cfg_aer_support = 1; 4759 rc = strlen(buf); 4760 } else 4761 rc = -EPERM; 4762 } else { 4763 phba->cfg_aer_support = 1; 4764 rc = strlen(buf); 4765 } 4766 break; 4767 default: 4768 rc = -EINVAL; 4769 break; 4770 } 4771 return rc; 4772 } 4773 4774 static DEVICE_ATTR_RW(lpfc_aer_support); 4775 4776 /** 4777 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4778 * @dev: class device that is converted into a Scsi_host. 4779 * @attr: device attribute, not used. 4780 * @buf: containing flag 1 for aer cleanup state. 4781 * @count: unused variable. 4782 * 4783 * Description: 4784 * If the @buf contains 1 and the device currently has the AER support 4785 * enabled, then invokes the kernel AER helper routine 4786 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable 4787 * error status register. 4788 * 4789 * Notes: 4790 * 4791 * Returns: 4792 * -EINVAL if the buf does not contain the 1 or the device is not currently 4793 * enabled with the AER support. 4794 **/ 4795 static ssize_t 4796 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4797 const char *buf, size_t count) 4798 { 4799 struct Scsi_Host *shost = class_to_shost(dev); 4800 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4801 struct lpfc_hba *phba = vport->phba; 4802 int val, rc = -1; 4803 4804 if (!isdigit(buf[0])) 4805 return -EINVAL; 4806 if (sscanf(buf, "%i", &val) != 1) 4807 return -EINVAL; 4808 if (val != 1) 4809 return -EINVAL; 4810 4811 if (phba->hba_flag & HBA_AER_ENABLED) 4812 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); 4813 4814 if (rc == 0) 4815 return strlen(buf); 4816 else 4817 return -EPERM; 4818 } 4819 4820 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4821 lpfc_aer_cleanup_state); 4822 4823 /** 4824 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4825 * 4826 * @dev: class device that is converted into a Scsi_host. 4827 * @attr: device attribute, not used. 4828 * @buf: containing the string the number of vfs to be enabled. 4829 * @count: unused variable. 4830 * 4831 * Description: 4832 * When this api is called either through user sysfs, the driver shall 4833 * try to enable or disable SR-IOV virtual functions according to the 4834 * following: 4835 * 4836 * If zero virtual function has been enabled to the physical function, 4837 * the driver shall invoke the pci enable virtual function api trying 4838 * to enable the virtual functions. If the nr_vfn provided is greater 4839 * than the maximum supported, the maximum virtual function number will 4840 * be used for invoking the api; otherwise, the nr_vfn provided shall 4841 * be used for invoking the api. If the api call returned success, the 4842 * actual number of virtual functions enabled will be set to the driver 4843 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4844 * cfg_sriov_nr_virtfn remains zero. 4845 * 4846 * If none-zero virtual functions have already been enabled to the 4847 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4848 * -EINVAL will be returned and the driver does nothing; 4849 * 4850 * If the nr_vfn provided is zero and none-zero virtual functions have 4851 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4852 * disabling virtual function api shall be invoded to disable all the 4853 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4854 * zero. Otherwise, if zero virtual function has been enabled, do 4855 * nothing. 4856 * 4857 * Returns: 4858 * length of the buf on success if val is in range the intended mode 4859 * is supported. 4860 * -EINVAL if val out of range or intended mode is not supported. 4861 **/ 4862 static ssize_t 4863 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4864 const char *buf, size_t count) 4865 { 4866 struct Scsi_Host *shost = class_to_shost(dev); 4867 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4868 struct lpfc_hba *phba = vport->phba; 4869 struct pci_dev *pdev = phba->pcidev; 4870 int val = 0, rc = -EINVAL; 4871 4872 /* Sanity check on user data */ 4873 if (!isdigit(buf[0])) 4874 return -EINVAL; 4875 if (sscanf(buf, "%i", &val) != 1) 4876 return -EINVAL; 4877 if (val < 0) 4878 return -EINVAL; 4879 4880 /* Request disabling virtual functions */ 4881 if (val == 0) { 4882 if (phba->cfg_sriov_nr_virtfn > 0) { 4883 pci_disable_sriov(pdev); 4884 phba->cfg_sriov_nr_virtfn = 0; 4885 } 4886 return strlen(buf); 4887 } 4888 4889 /* Request enabling virtual functions */ 4890 if (phba->cfg_sriov_nr_virtfn > 0) { 4891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4892 "3018 There are %d virtual functions " 4893 "enabled on physical function.\n", 4894 phba->cfg_sriov_nr_virtfn); 4895 return -EEXIST; 4896 } 4897 4898 if (val <= LPFC_MAX_VFN_PER_PFN) 4899 phba->cfg_sriov_nr_virtfn = val; 4900 else { 4901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4902 "3019 Enabling %d virtual functions is not " 4903 "allowed.\n", val); 4904 return -EINVAL; 4905 } 4906 4907 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4908 if (rc) { 4909 phba->cfg_sriov_nr_virtfn = 0; 4910 rc = -EPERM; 4911 } else 4912 rc = strlen(buf); 4913 4914 return rc; 4915 } 4916 4917 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4918 "Enable PCIe device SR-IOV virtual fn"); 4919 4920 lpfc_param_show(sriov_nr_virtfn) 4921 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4922 4923 /** 4924 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4925 * 4926 * @dev: class device that is converted into a Scsi_host. 4927 * @attr: device attribute, not used. 4928 * @buf: containing the string the number of vfs to be enabled. 4929 * @count: unused variable. 4930 * 4931 * Description: 4932 * 4933 * Returns: 4934 * length of the buf on success if val is in range the intended mode 4935 * is supported. 4936 * -EINVAL if val out of range or intended mode is not supported. 4937 **/ 4938 static ssize_t 4939 lpfc_request_firmware_upgrade_store(struct device *dev, 4940 struct device_attribute *attr, 4941 const char *buf, size_t count) 4942 { 4943 struct Scsi_Host *shost = class_to_shost(dev); 4944 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4945 struct lpfc_hba *phba = vport->phba; 4946 int val = 0, rc = -EINVAL; 4947 4948 /* Sanity check on user data */ 4949 if (!isdigit(buf[0])) 4950 return -EINVAL; 4951 if (sscanf(buf, "%i", &val) != 1) 4952 return -EINVAL; 4953 if (val != 1) 4954 return -EINVAL; 4955 4956 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4957 if (rc) 4958 rc = -EPERM; 4959 else 4960 rc = strlen(buf); 4961 return rc; 4962 } 4963 4964 static int lpfc_req_fw_upgrade; 4965 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4966 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4967 lpfc_param_show(request_firmware_upgrade) 4968 4969 /** 4970 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4971 * @phba: lpfc_hba pointer. 4972 * @val: 0 or 1. 4973 * 4974 * Description: 4975 * Set the initial Linux generic firmware upgrade enable or disable flag. 4976 * 4977 * Returns: 4978 * zero if val saved. 4979 * -EINVAL val out of range 4980 **/ 4981 static int 4982 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4983 { 4984 if (val >= 0 && val <= 1) { 4985 phba->cfg_request_firmware_upgrade = val; 4986 return 0; 4987 } 4988 return -EINVAL; 4989 } 4990 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4991 lpfc_request_firmware_upgrade_show, 4992 lpfc_request_firmware_upgrade_store); 4993 4994 /** 4995 * lpfc_force_rscn_store 4996 * 4997 * @dev: class device that is converted into a Scsi_host. 4998 * @attr: device attribute, not used. 4999 * @buf: unused string 5000 * @count: unused variable. 5001 * 5002 * Description: 5003 * Force the switch to send a RSCN to all other NPorts in our zone 5004 * If we are direct connect pt2pt, build the RSCN command ourself 5005 * and send to the other NPort. Not supported for private loop. 5006 * 5007 * Returns: 5008 * 0 - on success 5009 * -EIO - if command is not sent 5010 **/ 5011 static ssize_t 5012 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 5013 const char *buf, size_t count) 5014 { 5015 struct Scsi_Host *shost = class_to_shost(dev); 5016 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5017 int i; 5018 5019 i = lpfc_issue_els_rscn(vport, 0); 5020 if (i) 5021 return -EIO; 5022 return strlen(buf); 5023 } 5024 5025 /* 5026 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 5027 * connected to the HBA. 5028 * 5029 * Value range is any ascii value 5030 */ 5031 static int lpfc_force_rscn; 5032 module_param(lpfc_force_rscn, int, 0644); 5033 MODULE_PARM_DESC(lpfc_force_rscn, 5034 "Force an RSCN to be sent to all remote NPorts"); 5035 lpfc_param_show(force_rscn) 5036 5037 /** 5038 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 5039 * @phba: lpfc_hba pointer. 5040 * @val: unused value. 5041 * 5042 * Returns: 5043 * zero if val saved. 5044 **/ 5045 static int 5046 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 5047 { 5048 return 0; 5049 } 5050 static DEVICE_ATTR_RW(lpfc_force_rscn); 5051 5052 /** 5053 * lpfc_fcp_imax_store 5054 * 5055 * @dev: class device that is converted into a Scsi_host. 5056 * @attr: device attribute, not used. 5057 * @buf: string with the number of fast-path FCP interrupts per second. 5058 * @count: unused variable. 5059 * 5060 * Description: 5061 * If val is in a valid range [636,651042], then set the adapter's 5062 * maximum number of fast-path FCP interrupts per second. 5063 * 5064 * Returns: 5065 * length of the buf on success if val is in range the intended mode 5066 * is supported. 5067 * -EINVAL if val out of range or intended mode is not supported. 5068 **/ 5069 static ssize_t 5070 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5071 const char *buf, size_t count) 5072 { 5073 struct Scsi_Host *shost = class_to_shost(dev); 5074 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5075 struct lpfc_hba *phba = vport->phba; 5076 struct lpfc_eq_intr_info *eqi; 5077 uint32_t usdelay; 5078 int val = 0, i; 5079 5080 /* fcp_imax is only valid for SLI4 */ 5081 if (phba->sli_rev != LPFC_SLI_REV4) 5082 return -EINVAL; 5083 5084 /* Sanity check on user data */ 5085 if (!isdigit(buf[0])) 5086 return -EINVAL; 5087 if (sscanf(buf, "%i", &val) != 1) 5088 return -EINVAL; 5089 5090 /* 5091 * Value range for the HBA is [5000,5000000] 5092 * The value for each EQ depends on how many EQs are configured. 5093 * Allow value == 0 5094 */ 5095 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5096 return -EINVAL; 5097 5098 phba->cfg_auto_imax = (val) ? 0 : 1; 5099 if (phba->cfg_fcp_imax && !val) { 5100 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5101 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5102 5103 for_each_present_cpu(i) { 5104 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5105 eqi->icnt = 0; 5106 } 5107 } 5108 5109 phba->cfg_fcp_imax = (uint32_t)val; 5110 5111 if (phba->cfg_fcp_imax) 5112 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5113 else 5114 usdelay = 0; 5115 5116 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5117 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5118 usdelay); 5119 5120 return strlen(buf); 5121 } 5122 5123 /* 5124 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5125 # for the HBA. 5126 # 5127 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5128 */ 5129 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5130 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5131 MODULE_PARM_DESC(lpfc_fcp_imax, 5132 "Set the maximum number of FCP interrupts per second per HBA"); 5133 lpfc_param_show(fcp_imax) 5134 5135 /** 5136 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5137 * @phba: lpfc_hba pointer. 5138 * @val: link speed value. 5139 * 5140 * Description: 5141 * If val is in a valid range [636,651042], then initialize the adapter's 5142 * maximum number of fast-path FCP interrupts per second. 5143 * 5144 * Returns: 5145 * zero if val saved. 5146 * -EINVAL val out of range 5147 **/ 5148 static int 5149 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5150 { 5151 if (phba->sli_rev != LPFC_SLI_REV4) { 5152 phba->cfg_fcp_imax = 0; 5153 return 0; 5154 } 5155 5156 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5157 (val == 0)) { 5158 phba->cfg_fcp_imax = val; 5159 return 0; 5160 } 5161 5162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5163 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5164 val); 5165 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5166 5167 return 0; 5168 } 5169 5170 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5171 5172 /** 5173 * lpfc_cq_max_proc_limit_store 5174 * 5175 * @dev: class device that is converted into a Scsi_host. 5176 * @attr: device attribute, not used. 5177 * @buf: string with the cq max processing limit of cqes 5178 * @count: unused variable. 5179 * 5180 * Description: 5181 * If val is in a valid range, then set value on each cq 5182 * 5183 * Returns: 5184 * The length of the buf: if successful 5185 * -ERANGE: if val is not in the valid range 5186 * -EINVAL: if bad value format or intended mode is not supported. 5187 **/ 5188 static ssize_t 5189 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5190 const char *buf, size_t count) 5191 { 5192 struct Scsi_Host *shost = class_to_shost(dev); 5193 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5194 struct lpfc_hba *phba = vport->phba; 5195 struct lpfc_queue *eq, *cq; 5196 unsigned long val; 5197 int i; 5198 5199 /* cq_max_proc_limit is only valid for SLI4 */ 5200 if (phba->sli_rev != LPFC_SLI_REV4) 5201 return -EINVAL; 5202 5203 /* Sanity check on user data */ 5204 if (!isdigit(buf[0])) 5205 return -EINVAL; 5206 if (kstrtoul(buf, 0, &val)) 5207 return -EINVAL; 5208 5209 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5210 return -ERANGE; 5211 5212 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5213 5214 /* set the values on the cq's */ 5215 for (i = 0; i < phba->cfg_irq_chann; i++) { 5216 /* Get the EQ corresponding to the IRQ vector */ 5217 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5218 if (!eq) 5219 continue; 5220 5221 list_for_each_entry(cq, &eq->child_list, list) 5222 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5223 cq->entry_count); 5224 } 5225 5226 return strlen(buf); 5227 } 5228 5229 /* 5230 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5231 * itteration of CQ processing. 5232 */ 5233 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5234 module_param(lpfc_cq_max_proc_limit, int, 0644); 5235 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5236 "Set the maximum number CQEs processed in an iteration of " 5237 "CQ processing"); 5238 lpfc_param_show(cq_max_proc_limit) 5239 5240 /* 5241 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5242 * single handler call which should request a polled completion rather 5243 * than re-enabling interrupts. 5244 */ 5245 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5246 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5247 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5248 "CQE Processing Threshold to enable Polling"); 5249 5250 /** 5251 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5252 * @phba: lpfc_hba pointer. 5253 * @val: entry limit 5254 * 5255 * Description: 5256 * If val is in a valid range, then initialize the adapter's maximum 5257 * value. 5258 * 5259 * Returns: 5260 * Always returns 0 for success, even if value not always set to 5261 * requested value. If value out of range or not supported, will fall 5262 * back to default. 5263 **/ 5264 static int 5265 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5266 { 5267 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5268 5269 if (phba->sli_rev != LPFC_SLI_REV4) 5270 return 0; 5271 5272 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5273 phba->cfg_cq_max_proc_limit = val; 5274 return 0; 5275 } 5276 5277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5278 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: " 5279 "%d out of range, using default\n", 5280 phba->cfg_cq_max_proc_limit); 5281 5282 return 0; 5283 } 5284 5285 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5286 5287 /** 5288 * lpfc_state_show - Display current driver CPU affinity 5289 * @dev: class converted to a Scsi_host structure. 5290 * @attr: device attribute, not used. 5291 * @buf: on return contains text describing the state of the link. 5292 * 5293 * Returns: size of formatted string. 5294 **/ 5295 static ssize_t 5296 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5297 char *buf) 5298 { 5299 struct Scsi_Host *shost = class_to_shost(dev); 5300 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5301 struct lpfc_hba *phba = vport->phba; 5302 struct lpfc_vector_map_info *cpup; 5303 int len = 0; 5304 5305 if ((phba->sli_rev != LPFC_SLI_REV4) || 5306 (phba->intr_type != MSIX)) 5307 return len; 5308 5309 switch (phba->cfg_fcp_cpu_map) { 5310 case 0: 5311 len += scnprintf(buf + len, PAGE_SIZE-len, 5312 "fcp_cpu_map: No mapping (%d)\n", 5313 phba->cfg_fcp_cpu_map); 5314 return len; 5315 case 1: 5316 len += scnprintf(buf + len, PAGE_SIZE-len, 5317 "fcp_cpu_map: HBA centric mapping (%d): " 5318 "%d of %d CPUs online from %d possible CPUs\n", 5319 phba->cfg_fcp_cpu_map, num_online_cpus(), 5320 num_present_cpus(), 5321 phba->sli4_hba.num_possible_cpu); 5322 break; 5323 } 5324 5325 while (phba->sli4_hba.curr_disp_cpu < 5326 phba->sli4_hba.num_possible_cpu) { 5327 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5328 5329 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5330 len += scnprintf(buf + len, PAGE_SIZE - len, 5331 "CPU %02d not present\n", 5332 phba->sli4_hba.curr_disp_cpu); 5333 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5334 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5335 len += scnprintf( 5336 buf + len, PAGE_SIZE - len, 5337 "CPU %02d hdwq None " 5338 "physid %d coreid %d ht %d ua %d\n", 5339 phba->sli4_hba.curr_disp_cpu, 5340 cpup->phys_id, cpup->core_id, 5341 (cpup->flag & LPFC_CPU_MAP_HYPER), 5342 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5343 else 5344 len += scnprintf( 5345 buf + len, PAGE_SIZE - len, 5346 "CPU %02d EQ None hdwq %04d " 5347 "physid %d coreid %d ht %d ua %d\n", 5348 phba->sli4_hba.curr_disp_cpu, 5349 cpup->hdwq, cpup->phys_id, 5350 cpup->core_id, 5351 (cpup->flag & LPFC_CPU_MAP_HYPER), 5352 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5353 } else { 5354 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5355 len += scnprintf( 5356 buf + len, PAGE_SIZE - len, 5357 "CPU %02d hdwq None " 5358 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5359 phba->sli4_hba.curr_disp_cpu, 5360 cpup->phys_id, 5361 cpup->core_id, 5362 (cpup->flag & LPFC_CPU_MAP_HYPER), 5363 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5364 lpfc_get_irq(cpup->eq)); 5365 else 5366 len += scnprintf( 5367 buf + len, PAGE_SIZE - len, 5368 "CPU %02d EQ %04d hdwq %04d " 5369 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5370 phba->sli4_hba.curr_disp_cpu, 5371 cpup->eq, cpup->hdwq, cpup->phys_id, 5372 cpup->core_id, 5373 (cpup->flag & LPFC_CPU_MAP_HYPER), 5374 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5375 lpfc_get_irq(cpup->eq)); 5376 } 5377 5378 phba->sli4_hba.curr_disp_cpu++; 5379 5380 /* display max number of CPUs keeping some margin */ 5381 if (phba->sli4_hba.curr_disp_cpu < 5382 phba->sli4_hba.num_possible_cpu && 5383 (len >= (PAGE_SIZE - 64))) { 5384 len += scnprintf(buf + len, 5385 PAGE_SIZE - len, "more...\n"); 5386 break; 5387 } 5388 } 5389 5390 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5391 phba->sli4_hba.curr_disp_cpu = 0; 5392 5393 return len; 5394 } 5395 5396 /** 5397 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5398 * @dev: class device that is converted into a Scsi_host. 5399 * @attr: device attribute, not used. 5400 * @buf: one or more lpfc_polling_flags values. 5401 * @count: not used. 5402 * 5403 * Returns: 5404 * -EINVAL - Not implemented yet. 5405 **/ 5406 static ssize_t 5407 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5408 const char *buf, size_t count) 5409 { 5410 int status = -EINVAL; 5411 return status; 5412 } 5413 5414 /* 5415 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5416 # for the HBA. 5417 # 5418 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5419 # 0 - Do not affinitze IRQ vectors 5420 # 1 - Affintize HBA vectors with respect to each HBA 5421 # (start with CPU0 for each HBA) 5422 # This also defines how Hardware Queues are mapped to specific CPUs. 5423 */ 5424 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5425 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5426 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5427 "Defines how to map CPUs to IRQ vectors per HBA"); 5428 5429 /** 5430 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5431 * @phba: lpfc_hba pointer. 5432 * @val: link speed value. 5433 * 5434 * Description: 5435 * If val is in a valid range [0-2], then affinitze the adapter's 5436 * MSIX vectors. 5437 * 5438 * Returns: 5439 * zero if val saved. 5440 * -EINVAL val out of range 5441 **/ 5442 static int 5443 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5444 { 5445 if (phba->sli_rev != LPFC_SLI_REV4) { 5446 phba->cfg_fcp_cpu_map = 0; 5447 return 0; 5448 } 5449 5450 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5451 phba->cfg_fcp_cpu_map = val; 5452 return 0; 5453 } 5454 5455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5456 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5457 "default\n", val); 5458 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5459 5460 return 0; 5461 } 5462 5463 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5464 5465 /* 5466 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5467 # Value range is [2,3]. Default value is 3. 5468 */ 5469 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5470 "Select Fibre Channel class of service for FCP sequences"); 5471 5472 /* 5473 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5474 # is [0,1]. Default value is 0. 5475 */ 5476 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5477 "Use ADISC on rediscovery to authenticate FCP devices"); 5478 5479 /* 5480 # lpfc_first_burst_size: First burst size to use on the NPorts 5481 # that support first burst. 5482 # Value range is [0,65536]. Default value is 0. 5483 */ 5484 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5485 "First burst size for Targets that support first burst"); 5486 5487 /* 5488 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5489 * When the driver is configured as an NVME target, this value is 5490 * communicated to the NVME initiator in the PRLI response. It is 5491 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5492 * parameters are set and the target is sending the PRLI RSP. 5493 * Parameter supported on physical port only - no NPIV support. 5494 * Value range is [0,65536]. Default value is 0. 5495 */ 5496 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5497 "NVME Target mode first burst size in 512B increments."); 5498 5499 /* 5500 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5501 * For the Initiator (I), enabling this parameter means that an NVMET 5502 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5503 * processed by the initiator for subsequent NVME FCP IO. 5504 * Currently, this feature is not supported on the NVME target 5505 * Value range is [0,1]. Default value is 0 (disabled). 5506 */ 5507 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5508 "Enable First Burst feature for NVME Initiator."); 5509 5510 /* 5511 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5512 # depth. Default value is 0. When the value of this parameter is zero the 5513 # SCSI command completion time is not used for controlling I/O queue depth. When 5514 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5515 # to limit the I/O completion time to the parameter value. 5516 # The value is set in milliseconds. 5517 */ 5518 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5519 "Use command completion time to control queue depth"); 5520 5521 lpfc_vport_param_show(max_scsicmpl_time); 5522 static int 5523 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5524 { 5525 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5526 struct lpfc_nodelist *ndlp, *next_ndlp; 5527 5528 if (val == vport->cfg_max_scsicmpl_time) 5529 return 0; 5530 if ((val < 0) || (val > 60000)) 5531 return -EINVAL; 5532 vport->cfg_max_scsicmpl_time = val; 5533 5534 spin_lock_irq(shost->host_lock); 5535 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5536 if (!NLP_CHK_NODE_ACT(ndlp)) 5537 continue; 5538 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5539 continue; 5540 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5541 } 5542 spin_unlock_irq(shost->host_lock); 5543 return 0; 5544 } 5545 lpfc_vport_param_store(max_scsicmpl_time); 5546 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5547 5548 /* 5549 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5550 # range is [0,1]. Default value is 0. 5551 */ 5552 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5553 5554 /* 5555 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5556 # range is [0,1]. Default value is 1. 5557 */ 5558 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5559 5560 /* 5561 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5562 * range is [0,1]. Default value is 0. 5563 * For [0], FCP commands are issued to Work Queues based on upper layer 5564 * hardware queue index. 5565 * For [1], FCP commands are issued to a Work Queue associated with the 5566 * current CPU. 5567 * 5568 * LPFC_FCP_SCHED_BY_HDWQ == 0 5569 * LPFC_FCP_SCHED_BY_CPU == 1 5570 * 5571 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5572 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5573 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5574 * through WQs will be used. 5575 */ 5576 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5577 LPFC_FCP_SCHED_BY_HDWQ, 5578 LPFC_FCP_SCHED_BY_CPU, 5579 "Determine scheduling algorithm for " 5580 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5581 5582 /* 5583 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5584 * range is [0,1]. Default value is 0. 5585 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5586 * For [1], GID_PT is used for NameServer queries after RSCN 5587 * 5588 */ 5589 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5590 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5591 "Determine algorithm NameServer queries after RSCN " 5592 "[0] - GID_FT, [1] - GID_PT"); 5593 5594 /* 5595 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5596 # range is [0,1]. Default value is 0. 5597 # For [0], bus reset issues target reset to ALL devices 5598 # For [1], bus reset issues target reset to non-FCP2 devices 5599 */ 5600 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5601 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5602 5603 5604 /* 5605 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5606 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5607 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5608 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5609 # cr_delay is set to 0. 5610 */ 5611 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5612 "interrupt response is generated"); 5613 5614 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5615 "interrupt response is generated"); 5616 5617 /* 5618 # lpfc_multi_ring_support: Determines how many rings to spread available 5619 # cmd/rsp IOCB entries across. 5620 # Value range is [1,2]. Default value is 1. 5621 */ 5622 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5623 "SLI rings to spread IOCB entries across"); 5624 5625 /* 5626 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5627 # identifies what rctl value to configure the additional ring for. 5628 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5629 */ 5630 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5631 255, "Identifies RCTL for additional ring configuration"); 5632 5633 /* 5634 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5635 # identifies what type value to configure the additional ring for. 5636 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5637 */ 5638 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5639 255, "Identifies TYPE for additional ring configuration"); 5640 5641 /* 5642 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5643 # 0 = SmartSAN functionality disabled (default) 5644 # 1 = SmartSAN functionality enabled 5645 # This parameter will override the value of lpfc_fdmi_on module parameter. 5646 # Value range is [0,1]. Default value is 0. 5647 */ 5648 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5649 5650 /* 5651 # lpfc_fdmi_on: Controls FDMI support. 5652 # 0 No FDMI support 5653 # 1 Traditional FDMI support (default) 5654 # Traditional FDMI support means the driver will assume FDMI-2 support; 5655 # however, if that fails, it will fallback to FDMI-1. 5656 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5657 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5658 # lpfc_fdmi_on. 5659 # Value range [0,1]. Default value is 1. 5660 */ 5661 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5662 5663 /* 5664 # Specifies the maximum number of ELS cmds we can have outstanding (for 5665 # discovery). Value range is [1,64]. Default value = 32. 5666 */ 5667 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5668 "during discovery"); 5669 5670 /* 5671 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5672 # will be scanned by the SCSI midlayer when sequential scanning is 5673 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5674 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5675 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5676 # above. The lpfc driver limits the default value to 255 for two reasons. 5677 # As it bounds the sequential scan loop, scanning for thousands of luns 5678 # on a target can take minutes of wall clock time. Additionally, 5679 # there are FC targets, such as JBODs, that only recognize 8-bits of 5680 # LUN ID. When they receive a value greater than 8 bits, they chop off 5681 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5682 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5683 # valid responses at each of the LUN IDs, to believe there are multiple 5684 # devices present, when in fact, there is only 1. 5685 # A customer that is aware of their target behaviors, and the results as 5686 # indicated above, is welcome to increase the lpfc_max_luns value. 5687 # As mentioned, this value is not used by the lpfc driver, only the 5688 # SCSI midlayer. 5689 # Value range is [0,65535]. Default value is 255. 5690 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5691 */ 5692 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5693 5694 /* 5695 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5696 # Value range is [1,255], default value is 10. 5697 */ 5698 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5699 "Milliseconds driver will wait between polling FCP ring"); 5700 5701 /* 5702 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5703 # to complete in seconds. Value range is [5,180], default value is 60. 5704 */ 5705 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5706 "Maximum time to wait for task management commands to complete"); 5707 /* 5708 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5709 # support this feature 5710 # 0 = MSI disabled 5711 # 1 = MSI enabled 5712 # 2 = MSI-X enabled (default) 5713 # Value range is [0,2]. Default value is 2. 5714 */ 5715 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5716 "MSI-X (2), if possible"); 5717 5718 /* 5719 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5720 * 5721 * 0 = NVME OAS disabled 5722 * 1 = NVME OAS enabled 5723 * 5724 * Value range is [0,1]. Default value is 0. 5725 */ 5726 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5727 "Use OAS bit on NVME IOs"); 5728 5729 /* 5730 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5731 * 5732 * 0 = Put NVME Command in SGL 5733 * 1 = Embed NVME Command in WQE (unless G7) 5734 * 2 = Embed NVME Command in WQE (force) 5735 * 5736 * Value range is [0,2]. Default value is 1. 5737 */ 5738 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5739 "Embed NVME Command in WQE"); 5740 5741 /* 5742 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5743 * the driver will advertise it supports to the SCSI layer. 5744 * 5745 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5746 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5747 * 5748 * Value range is [0,256]. Default value is 8. 5749 */ 5750 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5751 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5752 "Set the number of SCSI Queues advertised"); 5753 5754 /* 5755 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5756 * will advertise it supports to the NVME and SCSI layers. This also 5757 * will map to the number of CQ/WQ pairs the driver will create. 5758 * 5759 * The NVME Layer will try to create this many, plus 1 administrative 5760 * hardware queue. The administrative queue will always map to WQ 0 5761 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5762 * 5763 * 0 = Configure the number of hdw queues to the number of active CPUs. 5764 * 1,256 = Manually specify how many hdw queues to use. 5765 * 5766 * Value range is [0,256]. Default value is 0. 5767 */ 5768 LPFC_ATTR_R(hdw_queue, 5769 LPFC_HBA_HDWQ_DEF, 5770 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5771 "Set the number of I/O Hardware Queues"); 5772 5773 static inline void 5774 lpfc_assign_default_irq_numa(struct lpfc_hba *phba) 5775 { 5776 #if IS_ENABLED(CONFIG_X86) 5777 /* If AMD architecture, then default is LPFC_IRQ_CHANN_NUMA */ 5778 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) 5779 phba->cfg_irq_numa = 1; 5780 else 5781 phba->cfg_irq_numa = 0; 5782 #else 5783 phba->cfg_irq_numa = 0; 5784 #endif 5785 } 5786 5787 /* 5788 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5789 * for Hardware Queues to utilize. This also will map to the number 5790 * of EQ / MSI-X vectors the driver will create. This should never be 5791 * more than the number of Hardware Queues 5792 * 5793 * 0 = Configure number of IRQ Channels to: 5794 * if AMD architecture, number of CPUs on HBA's NUMA node 5795 * otherwise, number of active CPUs. 5796 * [1,256] = Manually specify how many IRQ Channels to use. 5797 * 5798 * Value range is [0,256]. Default value is [0]. 5799 */ 5800 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5801 module_param(lpfc_irq_chann, uint, 0444); 5802 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5803 5804 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5805 * @phba: lpfc_hba pointer. 5806 * @val: contains the initial value 5807 * 5808 * Description: 5809 * Validates the initial value is within range and assigns it to the 5810 * adapter. If not in range, an error message is posted and the 5811 * default value is assigned. 5812 * 5813 * Returns: 5814 * zero if value is in range and is set 5815 * -EINVAL if value was out of range 5816 **/ 5817 static int 5818 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5819 { 5820 const struct cpumask *numa_mask; 5821 5822 if (phba->cfg_use_msi != 2) { 5823 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5824 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5825 phba->cfg_use_msi); 5826 phba->cfg_irq_numa = 0; 5827 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5828 return 0; 5829 } 5830 5831 /* Check if default setting was passed */ 5832 if (val == LPFC_IRQ_CHANN_DEF) 5833 lpfc_assign_default_irq_numa(phba); 5834 5835 if (phba->cfg_irq_numa) { 5836 numa_mask = &phba->sli4_hba.numa_mask; 5837 5838 if (cpumask_empty(numa_mask)) { 5839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5840 "8533 Could not identify NUMA node, " 5841 "ignoring cfg_irq_numa\n"); 5842 phba->cfg_irq_numa = 0; 5843 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5844 } else { 5845 phba->cfg_irq_chann = cpumask_weight(numa_mask); 5846 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5847 "8543 lpfc_irq_chann set to %u " 5848 "(numa)\n", phba->cfg_irq_chann); 5849 } 5850 } else { 5851 if (val > LPFC_IRQ_CHANN_MAX) { 5852 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5853 "8545 lpfc_irq_chann attribute cannot " 5854 "be set to %u, allowed range is " 5855 "[%u,%u]\n", 5856 val, 5857 LPFC_IRQ_CHANN_MIN, 5858 LPFC_IRQ_CHANN_MAX); 5859 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5860 return -EINVAL; 5861 } 5862 phba->cfg_irq_chann = val; 5863 } 5864 5865 return 0; 5866 } 5867 5868 /** 5869 * lpfc_irq_chann_show - Display value of irq_chann 5870 * @dev: class converted to a Scsi_host structure. 5871 * @attr: device attribute, not used. 5872 * @buf: on return contains a string with the list sizes 5873 * 5874 * Returns: size of formatted string. 5875 **/ 5876 static ssize_t 5877 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5878 char *buf) 5879 { 5880 struct Scsi_Host *shost = class_to_shost(dev); 5881 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5882 struct lpfc_hba *phba = vport->phba; 5883 5884 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5885 } 5886 5887 static DEVICE_ATTR_RO(lpfc_irq_chann); 5888 5889 /* 5890 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5891 # 0 = HBA resets disabled 5892 # 1 = HBA resets enabled (default) 5893 # 2 = HBA reset via PCI bus reset enabled 5894 # Value range is [0,2]. Default value is 1. 5895 */ 5896 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5897 5898 /* 5899 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5900 # 0 = HBA Heartbeat disabled 5901 # 1 = HBA Heartbeat enabled (default) 5902 # Value range is [0,1]. Default value is 1. 5903 */ 5904 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5905 5906 /* 5907 # lpfc_EnableXLane: Enable Express Lane Feature 5908 # 0x0 Express Lane Feature disabled 5909 # 0x1 Express Lane Feature enabled 5910 # Value range is [0,1]. Default value is 0. 5911 */ 5912 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5913 5914 /* 5915 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5916 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5917 # Value range is [0x0,0x7f]. Default value is 0 5918 */ 5919 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5920 5921 /* 5922 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5923 # 0 = BlockGuard disabled (default) 5924 # 1 = BlockGuard enabled 5925 # Value range is [0,1]. Default value is 0. 5926 */ 5927 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5928 5929 /* 5930 # lpfc_prot_mask: i 5931 # - Bit mask of host protection capabilities used to register with the 5932 # SCSI mid-layer 5933 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5934 # - Allows you to ultimately specify which profiles to use 5935 # - Default will result in registering capabilities for all profiles. 5936 # - SHOST_DIF_TYPE1_PROTECTION 1 5937 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5938 # - SHOST_DIX_TYPE0_PROTECTION 8 5939 # HBA supports DIX Type 0: Host to HBA protection only 5940 # - SHOST_DIX_TYPE1_PROTECTION 16 5941 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5942 # 5943 */ 5944 LPFC_ATTR(prot_mask, 5945 (SHOST_DIF_TYPE1_PROTECTION | 5946 SHOST_DIX_TYPE0_PROTECTION | 5947 SHOST_DIX_TYPE1_PROTECTION), 5948 0, 5949 (SHOST_DIF_TYPE1_PROTECTION | 5950 SHOST_DIX_TYPE0_PROTECTION | 5951 SHOST_DIX_TYPE1_PROTECTION), 5952 "T10-DIF host protection capabilities mask"); 5953 5954 /* 5955 # lpfc_prot_guard: i 5956 # - Bit mask of protection guard types to register with the SCSI mid-layer 5957 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5958 # - Allows you to ultimately specify which profiles to use 5959 # - Default will result in registering capabilities for all guard types 5960 # 5961 */ 5962 LPFC_ATTR(prot_guard, 5963 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5964 "T10-DIF host protection guard type"); 5965 5966 /* 5967 * Delay initial NPort discovery when Clean Address bit is cleared in 5968 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5969 * This parameter can have value 0 or 1. 5970 * When this parameter is set to 0, no delay is added to the initial 5971 * discovery. 5972 * When this parameter is set to non-zero value, initial Nport discovery is 5973 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5974 * accept and FCID/Fabric name/Fabric portname is changed. 5975 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5976 * when Clean Address bit is cleared in FLOGI/FDISC 5977 * accept and FCID/Fabric name/Fabric portname is changed. 5978 * Default value is 0. 5979 */ 5980 LPFC_ATTR(delay_discovery, 0, 0, 1, 5981 "Delay NPort discovery when Clean Address bit is cleared."); 5982 5983 /* 5984 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5985 * This value can be set to values between 64 and 4096. The default value 5986 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5987 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5988 * Because of the additional overhead involved in setting up T10-DIF, 5989 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5990 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5991 */ 5992 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5993 module_param(lpfc_sg_seg_cnt, uint, 0444); 5994 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5995 5996 /** 5997 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5998 * configured for the adapter 5999 * @dev: class converted to a Scsi_host structure. 6000 * @attr: device attribute, not used. 6001 * @buf: on return contains a string with the list sizes 6002 * 6003 * Returns: size of formatted string. 6004 **/ 6005 static ssize_t 6006 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6007 char *buf) 6008 { 6009 struct Scsi_Host *shost = class_to_shost(dev); 6010 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6011 struct lpfc_hba *phba = vport->phba; 6012 int len; 6013 6014 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6015 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6016 6017 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6018 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6019 phba->cfg_nvme_seg_cnt); 6020 return len; 6021 } 6022 6023 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6024 6025 /** 6026 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6027 * @phba: lpfc_hba pointer. 6028 * @val: contains the initial value 6029 * 6030 * Description: 6031 * Validates the initial value is within range and assigns it to the 6032 * adapter. If not in range, an error message is posted and the 6033 * default value is assigned. 6034 * 6035 * Returns: 6036 * zero if value is in range and is set 6037 * -EINVAL if value was out of range 6038 **/ 6039 static int 6040 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6041 { 6042 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6043 phba->cfg_sg_seg_cnt = val; 6044 return 0; 6045 } 6046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6047 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 6048 "be set to %d, allowed range is [%d, %d]\n", 6049 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6050 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6051 return -EINVAL; 6052 } 6053 6054 /* 6055 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6056 * 0 = MDS Diagnostics disabled (default) 6057 * 1 = MDS Diagnostics enabled 6058 * Value range is [0,1]. Default value is 0. 6059 */ 6060 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6061 6062 /* 6063 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6064 * 0 = Disable firmware logging (default) 6065 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6066 * Value range [0..4]. Default value is 0 6067 */ 6068 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6069 lpfc_param_show(ras_fwlog_buffsize); 6070 6071 static ssize_t 6072 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6073 { 6074 int ret = 0; 6075 enum ras_state state; 6076 6077 if (!lpfc_rangecheck(val, 0, 4)) 6078 return -EINVAL; 6079 6080 if (phba->cfg_ras_fwlog_buffsize == val) 6081 return 0; 6082 6083 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6084 return -EINVAL; 6085 6086 spin_lock_irq(&phba->hbalock); 6087 state = phba->ras_fwlog.state; 6088 spin_unlock_irq(&phba->hbalock); 6089 6090 if (state == REG_INPROGRESS) { 6091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6092 "registration is in progress\n"); 6093 return -EBUSY; 6094 } 6095 6096 /* For disable logging: stop the logs and free the DMA. 6097 * For ras_fwlog_buffsize size change we still need to free and 6098 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6099 */ 6100 phba->cfg_ras_fwlog_buffsize = val; 6101 if (state == ACTIVE) { 6102 lpfc_ras_stop_fwlog(phba); 6103 lpfc_sli4_ras_dma_free(phba); 6104 } 6105 6106 lpfc_sli4_ras_init(phba); 6107 if (phba->ras_fwlog.ras_enabled) 6108 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6109 LPFC_RAS_ENABLE_LOGGING); 6110 return ret; 6111 } 6112 6113 lpfc_param_store(ras_fwlog_buffsize); 6114 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6115 6116 /* 6117 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6118 * Valid only if firmware logging is enabled 6119 * 0(Least Verbosity) 4 (most verbosity) 6120 * Value range is [0..4]. Default value is 0 6121 */ 6122 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6123 6124 /* 6125 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6126 * Default function which has RAS support : 0 6127 * Value Range is [0..7]. 6128 * FW logging is a global action and enablement is via a specific 6129 * port. 6130 */ 6131 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6132 6133 /* 6134 * lpfc_enable_bbcr: Enable BB Credit Recovery 6135 * 0 = BB Credit Recovery disabled 6136 * 1 = BB Credit Recovery enabled (default) 6137 * Value range is [0,1]. Default value is 1. 6138 */ 6139 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6140 6141 /* 6142 * lpfc_enable_dpp: Enable DPP on G7 6143 * 0 = DPP on G7 disabled 6144 * 1 = DPP on G7 enabled (default) 6145 * Value range is [0,1]. Default value is 1. 6146 */ 6147 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6148 6149 struct device_attribute *lpfc_hba_attrs[] = { 6150 &dev_attr_nvme_info, 6151 &dev_attr_scsi_stat, 6152 &dev_attr_bg_info, 6153 &dev_attr_bg_guard_err, 6154 &dev_attr_bg_apptag_err, 6155 &dev_attr_bg_reftag_err, 6156 &dev_attr_info, 6157 &dev_attr_serialnum, 6158 &dev_attr_modeldesc, 6159 &dev_attr_modelname, 6160 &dev_attr_programtype, 6161 &dev_attr_portnum, 6162 &dev_attr_fwrev, 6163 &dev_attr_hdw, 6164 &dev_attr_option_rom_version, 6165 &dev_attr_link_state, 6166 &dev_attr_num_discovered_ports, 6167 &dev_attr_menlo_mgmt_mode, 6168 &dev_attr_lpfc_drvr_version, 6169 &dev_attr_lpfc_enable_fip, 6170 &dev_attr_lpfc_temp_sensor, 6171 &dev_attr_lpfc_log_verbose, 6172 &dev_attr_lpfc_lun_queue_depth, 6173 &dev_attr_lpfc_tgt_queue_depth, 6174 &dev_attr_lpfc_hba_queue_depth, 6175 &dev_attr_lpfc_peer_port_login, 6176 &dev_attr_lpfc_nodev_tmo, 6177 &dev_attr_lpfc_devloss_tmo, 6178 &dev_attr_lpfc_enable_fc4_type, 6179 &dev_attr_lpfc_fcp_class, 6180 &dev_attr_lpfc_use_adisc, 6181 &dev_attr_lpfc_first_burst_size, 6182 &dev_attr_lpfc_ack0, 6183 &dev_attr_lpfc_xri_rebalancing, 6184 &dev_attr_lpfc_topology, 6185 &dev_attr_lpfc_scan_down, 6186 &dev_attr_lpfc_link_speed, 6187 &dev_attr_lpfc_fcp_io_sched, 6188 &dev_attr_lpfc_ns_query, 6189 &dev_attr_lpfc_fcp2_no_tgt_reset, 6190 &dev_attr_lpfc_cr_delay, 6191 &dev_attr_lpfc_cr_count, 6192 &dev_attr_lpfc_multi_ring_support, 6193 &dev_attr_lpfc_multi_ring_rctl, 6194 &dev_attr_lpfc_multi_ring_type, 6195 &dev_attr_lpfc_fdmi_on, 6196 &dev_attr_lpfc_enable_SmartSAN, 6197 &dev_attr_lpfc_max_luns, 6198 &dev_attr_lpfc_enable_npiv, 6199 &dev_attr_lpfc_fcf_failover_policy, 6200 &dev_attr_lpfc_enable_rrq, 6201 &dev_attr_nport_evt_cnt, 6202 &dev_attr_board_mode, 6203 &dev_attr_max_vpi, 6204 &dev_attr_used_vpi, 6205 &dev_attr_max_rpi, 6206 &dev_attr_used_rpi, 6207 &dev_attr_max_xri, 6208 &dev_attr_used_xri, 6209 &dev_attr_npiv_info, 6210 &dev_attr_issue_reset, 6211 &dev_attr_lpfc_poll, 6212 &dev_attr_lpfc_poll_tmo, 6213 &dev_attr_lpfc_task_mgmt_tmo, 6214 &dev_attr_lpfc_use_msi, 6215 &dev_attr_lpfc_nvme_oas, 6216 &dev_attr_lpfc_nvme_embed_cmd, 6217 &dev_attr_lpfc_fcp_imax, 6218 &dev_attr_lpfc_force_rscn, 6219 &dev_attr_lpfc_cq_poll_threshold, 6220 &dev_attr_lpfc_cq_max_proc_limit, 6221 &dev_attr_lpfc_fcp_cpu_map, 6222 &dev_attr_lpfc_fcp_mq_threshold, 6223 &dev_attr_lpfc_hdw_queue, 6224 &dev_attr_lpfc_irq_chann, 6225 &dev_attr_lpfc_suppress_rsp, 6226 &dev_attr_lpfc_nvmet_mrq, 6227 &dev_attr_lpfc_nvmet_mrq_post, 6228 &dev_attr_lpfc_nvme_enable_fb, 6229 &dev_attr_lpfc_nvmet_fb_size, 6230 &dev_attr_lpfc_enable_bg, 6231 &dev_attr_lpfc_soft_wwnn, 6232 &dev_attr_lpfc_soft_wwpn, 6233 &dev_attr_lpfc_soft_wwn_enable, 6234 &dev_attr_lpfc_enable_hba_reset, 6235 &dev_attr_lpfc_enable_hba_heartbeat, 6236 &dev_attr_lpfc_EnableXLane, 6237 &dev_attr_lpfc_XLanePriority, 6238 &dev_attr_lpfc_xlane_lun, 6239 &dev_attr_lpfc_xlane_tgt, 6240 &dev_attr_lpfc_xlane_vpt, 6241 &dev_attr_lpfc_xlane_lun_state, 6242 &dev_attr_lpfc_xlane_lun_status, 6243 &dev_attr_lpfc_xlane_priority, 6244 &dev_attr_lpfc_sg_seg_cnt, 6245 &dev_attr_lpfc_max_scsicmpl_time, 6246 &dev_attr_lpfc_stat_data_ctrl, 6247 &dev_attr_lpfc_aer_support, 6248 &dev_attr_lpfc_aer_state_cleanup, 6249 &dev_attr_lpfc_sriov_nr_virtfn, 6250 &dev_attr_lpfc_req_fw_upgrade, 6251 &dev_attr_lpfc_suppress_link_up, 6252 &dev_attr_iocb_hw, 6253 &dev_attr_pls, 6254 &dev_attr_pt, 6255 &dev_attr_txq_hw, 6256 &dev_attr_txcmplq_hw, 6257 &dev_attr_lpfc_fips_level, 6258 &dev_attr_lpfc_fips_rev, 6259 &dev_attr_lpfc_dss, 6260 &dev_attr_lpfc_sriov_hw_max_virtfn, 6261 &dev_attr_protocol, 6262 &dev_attr_lpfc_xlane_supported, 6263 &dev_attr_lpfc_enable_mds_diags, 6264 &dev_attr_lpfc_ras_fwlog_buffsize, 6265 &dev_attr_lpfc_ras_fwlog_level, 6266 &dev_attr_lpfc_ras_fwlog_func, 6267 &dev_attr_lpfc_enable_bbcr, 6268 &dev_attr_lpfc_enable_dpp, 6269 NULL, 6270 }; 6271 6272 struct device_attribute *lpfc_vport_attrs[] = { 6273 &dev_attr_info, 6274 &dev_attr_link_state, 6275 &dev_attr_num_discovered_ports, 6276 &dev_attr_lpfc_drvr_version, 6277 &dev_attr_lpfc_log_verbose, 6278 &dev_attr_lpfc_lun_queue_depth, 6279 &dev_attr_lpfc_tgt_queue_depth, 6280 &dev_attr_lpfc_nodev_tmo, 6281 &dev_attr_lpfc_devloss_tmo, 6282 &dev_attr_lpfc_hba_queue_depth, 6283 &dev_attr_lpfc_peer_port_login, 6284 &dev_attr_lpfc_restrict_login, 6285 &dev_attr_lpfc_fcp_class, 6286 &dev_attr_lpfc_use_adisc, 6287 &dev_attr_lpfc_first_burst_size, 6288 &dev_attr_lpfc_max_luns, 6289 &dev_attr_nport_evt_cnt, 6290 &dev_attr_npiv_info, 6291 &dev_attr_lpfc_enable_da_id, 6292 &dev_attr_lpfc_max_scsicmpl_time, 6293 &dev_attr_lpfc_stat_data_ctrl, 6294 &dev_attr_lpfc_static_vport, 6295 &dev_attr_lpfc_fips_level, 6296 &dev_attr_lpfc_fips_rev, 6297 NULL, 6298 }; 6299 6300 /** 6301 * sysfs_ctlreg_write - Write method for writing to ctlreg 6302 * @filp: open sysfs file 6303 * @kobj: kernel kobject that contains the kernel class device. 6304 * @bin_attr: kernel attributes passed to us. 6305 * @buf: contains the data to be written to the adapter IOREG space. 6306 * @off: offset into buffer to beginning of data. 6307 * @count: bytes to transfer. 6308 * 6309 * Description: 6310 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6311 * Uses the adapter io control registers to send buf contents to the adapter. 6312 * 6313 * Returns: 6314 * -ERANGE off and count combo out of range 6315 * -EINVAL off, count or buff address invalid 6316 * -EPERM adapter is offline 6317 * value of count, buf contents written 6318 **/ 6319 static ssize_t 6320 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6321 struct bin_attribute *bin_attr, 6322 char *buf, loff_t off, size_t count) 6323 { 6324 size_t buf_off; 6325 struct device *dev = container_of(kobj, struct device, kobj); 6326 struct Scsi_Host *shost = class_to_shost(dev); 6327 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6328 struct lpfc_hba *phba = vport->phba; 6329 6330 if (phba->sli_rev >= LPFC_SLI_REV4) 6331 return -EPERM; 6332 6333 if ((off + count) > FF_REG_AREA_SIZE) 6334 return -ERANGE; 6335 6336 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6337 return 0; 6338 6339 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6340 return -EINVAL; 6341 6342 /* This is to protect HBA registers from accidental writes. */ 6343 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6344 return -EINVAL; 6345 6346 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6347 return -EPERM; 6348 6349 spin_lock_irq(&phba->hbalock); 6350 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6351 buf_off += sizeof(uint32_t)) 6352 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6353 phba->ctrl_regs_memmap_p + off + buf_off); 6354 6355 spin_unlock_irq(&phba->hbalock); 6356 6357 return count; 6358 } 6359 6360 /** 6361 * sysfs_ctlreg_read - Read method for reading from ctlreg 6362 * @filp: open sysfs file 6363 * @kobj: kernel kobject that contains the kernel class device. 6364 * @bin_attr: kernel attributes passed to us. 6365 * @buf: if successful contains the data from the adapter IOREG space. 6366 * @off: offset into buffer to beginning of data. 6367 * @count: bytes to transfer. 6368 * 6369 * Description: 6370 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6371 * Uses the adapter io control registers to read data into buf. 6372 * 6373 * Returns: 6374 * -ERANGE off and count combo out of range 6375 * -EINVAL off, count or buff address invalid 6376 * value of count, buf contents read 6377 **/ 6378 static ssize_t 6379 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6380 struct bin_attribute *bin_attr, 6381 char *buf, loff_t off, size_t count) 6382 { 6383 size_t buf_off; 6384 uint32_t * tmp_ptr; 6385 struct device *dev = container_of(kobj, struct device, kobj); 6386 struct Scsi_Host *shost = class_to_shost(dev); 6387 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6388 struct lpfc_hba *phba = vport->phba; 6389 6390 if (phba->sli_rev >= LPFC_SLI_REV4) 6391 return -EPERM; 6392 6393 if (off > FF_REG_AREA_SIZE) 6394 return -ERANGE; 6395 6396 if ((off + count) > FF_REG_AREA_SIZE) 6397 count = FF_REG_AREA_SIZE - off; 6398 6399 if (count == 0) return 0; 6400 6401 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6402 return -EINVAL; 6403 6404 spin_lock_irq(&phba->hbalock); 6405 6406 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6407 tmp_ptr = (uint32_t *)(buf + buf_off); 6408 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6409 } 6410 6411 spin_unlock_irq(&phba->hbalock); 6412 6413 return count; 6414 } 6415 6416 static struct bin_attribute sysfs_ctlreg_attr = { 6417 .attr = { 6418 .name = "ctlreg", 6419 .mode = S_IRUSR | S_IWUSR, 6420 }, 6421 .size = 256, 6422 .read = sysfs_ctlreg_read, 6423 .write = sysfs_ctlreg_write, 6424 }; 6425 6426 /** 6427 * sysfs_mbox_write - Write method for writing information via mbox 6428 * @filp: open sysfs file 6429 * @kobj: kernel kobject that contains the kernel class device. 6430 * @bin_attr: kernel attributes passed to us. 6431 * @buf: contains the data to be written to sysfs mbox. 6432 * @off: offset into buffer to beginning of data. 6433 * @count: bytes to transfer. 6434 * 6435 * Description: 6436 * Deprecated function. All mailbox access from user space is performed via the 6437 * bsg interface. 6438 * 6439 * Returns: 6440 * -EPERM operation not permitted 6441 **/ 6442 static ssize_t 6443 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6444 struct bin_attribute *bin_attr, 6445 char *buf, loff_t off, size_t count) 6446 { 6447 return -EPERM; 6448 } 6449 6450 /** 6451 * sysfs_mbox_read - Read method for reading information via mbox 6452 * @filp: open sysfs file 6453 * @kobj: kernel kobject that contains the kernel class device. 6454 * @bin_attr: kernel attributes passed to us. 6455 * @buf: contains the data to be read from sysfs mbox. 6456 * @off: offset into buffer to beginning of data. 6457 * @count: bytes to transfer. 6458 * 6459 * Description: 6460 * Deprecated function. All mailbox access from user space is performed via the 6461 * bsg interface. 6462 * 6463 * Returns: 6464 * -EPERM operation not permitted 6465 **/ 6466 static ssize_t 6467 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6468 struct bin_attribute *bin_attr, 6469 char *buf, loff_t off, size_t count) 6470 { 6471 return -EPERM; 6472 } 6473 6474 static struct bin_attribute sysfs_mbox_attr = { 6475 .attr = { 6476 .name = "mbox", 6477 .mode = S_IRUSR | S_IWUSR, 6478 }, 6479 .size = MAILBOX_SYSFS_MAX, 6480 .read = sysfs_mbox_read, 6481 .write = sysfs_mbox_write, 6482 }; 6483 6484 /** 6485 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6486 * @vport: address of lpfc vport structure. 6487 * 6488 * Return codes: 6489 * zero on success 6490 * error return code from sysfs_create_bin_file() 6491 **/ 6492 int 6493 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6494 { 6495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6496 int error; 6497 6498 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6499 &sysfs_drvr_stat_data_attr); 6500 6501 /* Virtual ports do not need ctrl_reg and mbox */ 6502 if (error || vport->port_type == LPFC_NPIV_PORT) 6503 goto out; 6504 6505 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6506 &sysfs_ctlreg_attr); 6507 if (error) 6508 goto out_remove_stat_attr; 6509 6510 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6511 &sysfs_mbox_attr); 6512 if (error) 6513 goto out_remove_ctlreg_attr; 6514 6515 return 0; 6516 out_remove_ctlreg_attr: 6517 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6518 out_remove_stat_attr: 6519 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6520 &sysfs_drvr_stat_data_attr); 6521 out: 6522 return error; 6523 } 6524 6525 /** 6526 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6527 * @vport: address of lpfc vport structure. 6528 **/ 6529 void 6530 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6531 { 6532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6533 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6534 &sysfs_drvr_stat_data_attr); 6535 /* Virtual ports do not need ctrl_reg and mbox */ 6536 if (vport->port_type == LPFC_NPIV_PORT) 6537 return; 6538 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6539 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6540 } 6541 6542 /* 6543 * Dynamic FC Host Attributes Support 6544 */ 6545 6546 /** 6547 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6548 * @shost: kernel scsi host pointer. 6549 **/ 6550 static void 6551 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6552 { 6553 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6554 6555 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6556 sizeof fc_host_symbolic_name(shost)); 6557 } 6558 6559 /** 6560 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6561 * @shost: kernel scsi host pointer. 6562 **/ 6563 static void 6564 lpfc_get_host_port_id(struct Scsi_Host *shost) 6565 { 6566 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6567 6568 /* note: fc_myDID already in cpu endianness */ 6569 fc_host_port_id(shost) = vport->fc_myDID; 6570 } 6571 6572 /** 6573 * lpfc_get_host_port_type - Set the value of the scsi host port type 6574 * @shost: kernel scsi host pointer. 6575 **/ 6576 static void 6577 lpfc_get_host_port_type(struct Scsi_Host *shost) 6578 { 6579 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6580 struct lpfc_hba *phba = vport->phba; 6581 6582 spin_lock_irq(shost->host_lock); 6583 6584 if (vport->port_type == LPFC_NPIV_PORT) { 6585 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6586 } else if (lpfc_is_link_up(phba)) { 6587 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6588 if (vport->fc_flag & FC_PUBLIC_LOOP) 6589 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6590 else 6591 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6592 } else { 6593 if (vport->fc_flag & FC_FABRIC) 6594 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6595 else 6596 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6597 } 6598 } else 6599 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6600 6601 spin_unlock_irq(shost->host_lock); 6602 } 6603 6604 /** 6605 * lpfc_get_host_port_state - Set the value of the scsi host port state 6606 * @shost: kernel scsi host pointer. 6607 **/ 6608 static void 6609 lpfc_get_host_port_state(struct Scsi_Host *shost) 6610 { 6611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6612 struct lpfc_hba *phba = vport->phba; 6613 6614 spin_lock_irq(shost->host_lock); 6615 6616 if (vport->fc_flag & FC_OFFLINE_MODE) 6617 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6618 else { 6619 switch (phba->link_state) { 6620 case LPFC_LINK_UNKNOWN: 6621 case LPFC_LINK_DOWN: 6622 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6623 break; 6624 case LPFC_LINK_UP: 6625 case LPFC_CLEAR_LA: 6626 case LPFC_HBA_READY: 6627 /* Links up, reports port state accordingly */ 6628 if (vport->port_state < LPFC_VPORT_READY) 6629 fc_host_port_state(shost) = 6630 FC_PORTSTATE_BYPASSED; 6631 else 6632 fc_host_port_state(shost) = 6633 FC_PORTSTATE_ONLINE; 6634 break; 6635 case LPFC_HBA_ERROR: 6636 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6637 break; 6638 default: 6639 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6640 break; 6641 } 6642 } 6643 6644 spin_unlock_irq(shost->host_lock); 6645 } 6646 6647 /** 6648 * lpfc_get_host_speed - Set the value of the scsi host speed 6649 * @shost: kernel scsi host pointer. 6650 **/ 6651 static void 6652 lpfc_get_host_speed(struct Scsi_Host *shost) 6653 { 6654 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6655 struct lpfc_hba *phba = vport->phba; 6656 6657 spin_lock_irq(shost->host_lock); 6658 6659 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6660 switch(phba->fc_linkspeed) { 6661 case LPFC_LINK_SPEED_1GHZ: 6662 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6663 break; 6664 case LPFC_LINK_SPEED_2GHZ: 6665 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6666 break; 6667 case LPFC_LINK_SPEED_4GHZ: 6668 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6669 break; 6670 case LPFC_LINK_SPEED_8GHZ: 6671 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6672 break; 6673 case LPFC_LINK_SPEED_10GHZ: 6674 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6675 break; 6676 case LPFC_LINK_SPEED_16GHZ: 6677 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6678 break; 6679 case LPFC_LINK_SPEED_32GHZ: 6680 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6681 break; 6682 case LPFC_LINK_SPEED_64GHZ: 6683 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6684 break; 6685 case LPFC_LINK_SPEED_128GHZ: 6686 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6687 break; 6688 default: 6689 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6690 break; 6691 } 6692 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6693 switch (phba->fc_linkspeed) { 6694 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6695 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6696 break; 6697 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6698 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6699 break; 6700 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6701 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6702 break; 6703 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6704 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6705 break; 6706 default: 6707 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6708 break; 6709 } 6710 } else 6711 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6712 6713 spin_unlock_irq(shost->host_lock); 6714 } 6715 6716 /** 6717 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6718 * @shost: kernel scsi host pointer. 6719 **/ 6720 static void 6721 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6722 { 6723 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6724 struct lpfc_hba *phba = vport->phba; 6725 u64 node_name; 6726 6727 spin_lock_irq(shost->host_lock); 6728 6729 if ((vport->port_state > LPFC_FLOGI) && 6730 ((vport->fc_flag & FC_FABRIC) || 6731 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6732 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6733 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6734 else 6735 /* fabric is local port if there is no F/FL_Port */ 6736 node_name = 0; 6737 6738 spin_unlock_irq(shost->host_lock); 6739 6740 fc_host_fabric_name(shost) = node_name; 6741 } 6742 6743 /** 6744 * lpfc_get_stats - Return statistical information about the adapter 6745 * @shost: kernel scsi host pointer. 6746 * 6747 * Notes: 6748 * NULL on error for link down, no mbox pool, sli2 active, 6749 * management not allowed, memory allocation error, or mbox error. 6750 * 6751 * Returns: 6752 * NULL for error 6753 * address of the adapter host statistics 6754 **/ 6755 static struct fc_host_statistics * 6756 lpfc_get_stats(struct Scsi_Host *shost) 6757 { 6758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6759 struct lpfc_hba *phba = vport->phba; 6760 struct lpfc_sli *psli = &phba->sli; 6761 struct fc_host_statistics *hs = &phba->link_stats; 6762 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6763 LPFC_MBOXQ_t *pmboxq; 6764 MAILBOX_t *pmb; 6765 int rc = 0; 6766 6767 /* 6768 * prevent udev from issuing mailbox commands until the port is 6769 * configured. 6770 */ 6771 if (phba->link_state < LPFC_LINK_DOWN || 6772 !phba->mbox_mem_pool || 6773 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6774 return NULL; 6775 6776 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6777 return NULL; 6778 6779 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6780 if (!pmboxq) 6781 return NULL; 6782 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6783 6784 pmb = &pmboxq->u.mb; 6785 pmb->mbxCommand = MBX_READ_STATUS; 6786 pmb->mbxOwner = OWN_HOST; 6787 pmboxq->ctx_buf = NULL; 6788 pmboxq->vport = vport; 6789 6790 if (vport->fc_flag & FC_OFFLINE_MODE) 6791 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6792 else 6793 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6794 6795 if (rc != MBX_SUCCESS) { 6796 if (rc != MBX_TIMEOUT) 6797 mempool_free(pmboxq, phba->mbox_mem_pool); 6798 return NULL; 6799 } 6800 6801 memset(hs, 0, sizeof (struct fc_host_statistics)); 6802 6803 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6804 /* 6805 * The MBX_READ_STATUS returns tx_k_bytes which has to 6806 * converted to words 6807 */ 6808 hs->tx_words = (uint64_t) 6809 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6810 * (uint64_t)256); 6811 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6812 hs->rx_words = (uint64_t) 6813 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6814 * (uint64_t)256); 6815 6816 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6817 pmb->mbxCommand = MBX_READ_LNK_STAT; 6818 pmb->mbxOwner = OWN_HOST; 6819 pmboxq->ctx_buf = NULL; 6820 pmboxq->vport = vport; 6821 6822 if (vport->fc_flag & FC_OFFLINE_MODE) 6823 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6824 else 6825 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6826 6827 if (rc != MBX_SUCCESS) { 6828 if (rc != MBX_TIMEOUT) 6829 mempool_free(pmboxq, phba->mbox_mem_pool); 6830 return NULL; 6831 } 6832 6833 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6834 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6835 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6836 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6837 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6838 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6839 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6840 6841 hs->link_failure_count -= lso->link_failure_count; 6842 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6843 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6844 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6845 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6846 hs->invalid_crc_count -= lso->invalid_crc_count; 6847 hs->error_frames -= lso->error_frames; 6848 6849 if (phba->hba_flag & HBA_FCOE_MODE) { 6850 hs->lip_count = -1; 6851 hs->nos_count = (phba->link_events >> 1); 6852 hs->nos_count -= lso->link_events; 6853 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6854 hs->lip_count = (phba->fc_eventTag >> 1); 6855 hs->lip_count -= lso->link_events; 6856 hs->nos_count = -1; 6857 } else { 6858 hs->lip_count = -1; 6859 hs->nos_count = (phba->fc_eventTag >> 1); 6860 hs->nos_count -= lso->link_events; 6861 } 6862 6863 hs->dumped_frames = -1; 6864 6865 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6866 6867 mempool_free(pmboxq, phba->mbox_mem_pool); 6868 6869 return hs; 6870 } 6871 6872 /** 6873 * lpfc_reset_stats - Copy the adapter link stats information 6874 * @shost: kernel scsi host pointer. 6875 **/ 6876 static void 6877 lpfc_reset_stats(struct Scsi_Host *shost) 6878 { 6879 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6880 struct lpfc_hba *phba = vport->phba; 6881 struct lpfc_sli *psli = &phba->sli; 6882 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6883 LPFC_MBOXQ_t *pmboxq; 6884 MAILBOX_t *pmb; 6885 int rc = 0; 6886 6887 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6888 return; 6889 6890 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6891 if (!pmboxq) 6892 return; 6893 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6894 6895 pmb = &pmboxq->u.mb; 6896 pmb->mbxCommand = MBX_READ_STATUS; 6897 pmb->mbxOwner = OWN_HOST; 6898 pmb->un.varWords[0] = 0x1; /* reset request */ 6899 pmboxq->ctx_buf = NULL; 6900 pmboxq->vport = vport; 6901 6902 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6903 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6904 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6905 else 6906 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6907 6908 if (rc != MBX_SUCCESS) { 6909 if (rc != MBX_TIMEOUT) 6910 mempool_free(pmboxq, phba->mbox_mem_pool); 6911 return; 6912 } 6913 6914 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6915 pmb->mbxCommand = MBX_READ_LNK_STAT; 6916 pmb->mbxOwner = OWN_HOST; 6917 pmboxq->ctx_buf = NULL; 6918 pmboxq->vport = vport; 6919 6920 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6921 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6922 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6923 else 6924 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6925 6926 if (rc != MBX_SUCCESS) { 6927 if (rc != MBX_TIMEOUT) 6928 mempool_free( pmboxq, phba->mbox_mem_pool); 6929 return; 6930 } 6931 6932 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6933 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6934 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6935 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6936 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6937 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6938 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6939 if (phba->hba_flag & HBA_FCOE_MODE) 6940 lso->link_events = (phba->link_events >> 1); 6941 else 6942 lso->link_events = (phba->fc_eventTag >> 1); 6943 6944 psli->stats_start = ktime_get_seconds(); 6945 6946 mempool_free(pmboxq, phba->mbox_mem_pool); 6947 6948 return; 6949 } 6950 6951 /* 6952 * The LPFC driver treats linkdown handling as target loss events so there 6953 * are no sysfs handlers for link_down_tmo. 6954 */ 6955 6956 /** 6957 * lpfc_get_node_by_target - Return the nodelist for a target 6958 * @starget: kernel scsi target pointer. 6959 * 6960 * Returns: 6961 * address of the node list if found 6962 * NULL target not found 6963 **/ 6964 static struct lpfc_nodelist * 6965 lpfc_get_node_by_target(struct scsi_target *starget) 6966 { 6967 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6968 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6969 struct lpfc_nodelist *ndlp; 6970 6971 spin_lock_irq(shost->host_lock); 6972 /* Search for this, mapped, target ID */ 6973 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6974 if (NLP_CHK_NODE_ACT(ndlp) && 6975 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6976 starget->id == ndlp->nlp_sid) { 6977 spin_unlock_irq(shost->host_lock); 6978 return ndlp; 6979 } 6980 } 6981 spin_unlock_irq(shost->host_lock); 6982 return NULL; 6983 } 6984 6985 /** 6986 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6987 * @starget: kernel scsi target pointer. 6988 **/ 6989 static void 6990 lpfc_get_starget_port_id(struct scsi_target *starget) 6991 { 6992 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6993 6994 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6995 } 6996 6997 /** 6998 * lpfc_get_starget_node_name - Set the target node name 6999 * @starget: kernel scsi target pointer. 7000 * 7001 * Description: Set the target node name to the ndlp node name wwn or zero. 7002 **/ 7003 static void 7004 lpfc_get_starget_node_name(struct scsi_target *starget) 7005 { 7006 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7007 7008 fc_starget_node_name(starget) = 7009 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7010 } 7011 7012 /** 7013 * lpfc_get_starget_port_name - Set the target port name 7014 * @starget: kernel scsi target pointer. 7015 * 7016 * Description: set the target port name to the ndlp port name wwn or zero. 7017 **/ 7018 static void 7019 lpfc_get_starget_port_name(struct scsi_target *starget) 7020 { 7021 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7022 7023 fc_starget_port_name(starget) = 7024 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7025 } 7026 7027 /** 7028 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7029 * @rport: fc rport address. 7030 * @timeout: new value for dev loss tmo. 7031 * 7032 * Description: 7033 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7034 * dev_loss_tmo to one. 7035 **/ 7036 static void 7037 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7038 { 7039 struct lpfc_rport_data *rdata = rport->dd_data; 7040 struct lpfc_nodelist *ndlp = rdata->pnode; 7041 #if (IS_ENABLED(CONFIG_NVME_FC)) 7042 struct lpfc_nvme_rport *nrport = NULL; 7043 #endif 7044 7045 if (timeout) 7046 rport->dev_loss_tmo = timeout; 7047 else 7048 rport->dev_loss_tmo = 1; 7049 7050 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 7051 dev_info(&rport->dev, "Cannot find remote node to " 7052 "set rport dev loss tmo, port_id x%x\n", 7053 rport->port_id); 7054 return; 7055 } 7056 7057 #if (IS_ENABLED(CONFIG_NVME_FC)) 7058 nrport = lpfc_ndlp_get_nrport(ndlp); 7059 7060 if (nrport && nrport->remoteport) 7061 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7062 rport->dev_loss_tmo); 7063 #endif 7064 } 7065 7066 /** 7067 * lpfc_rport_show_function - Return rport target information 7068 * 7069 * Description: 7070 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7071 * 7072 * lpfc_show_rport_##field: returns the bytes formatted in buf 7073 * @cdev: class converted to an fc_rport. 7074 * @buf: on return contains the target_field or zero. 7075 * 7076 * Returns: size of formatted string. 7077 **/ 7078 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7079 static ssize_t \ 7080 lpfc_show_rport_##field (struct device *dev, \ 7081 struct device_attribute *attr, \ 7082 char *buf) \ 7083 { \ 7084 struct fc_rport *rport = transport_class_to_rport(dev); \ 7085 struct lpfc_rport_data *rdata = rport->hostdata; \ 7086 return scnprintf(buf, sz, format_string, \ 7087 (rdata->target) ? cast rdata->target->field : 0); \ 7088 } 7089 7090 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7091 lpfc_rport_show_function(field, format_string, sz, ) \ 7092 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7093 7094 /** 7095 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7096 * @fc_vport: The fc_vport who's symbolic name has been changed. 7097 * 7098 * Description: 7099 * This function is called by the transport after the @fc_vport's symbolic name 7100 * has been changed. This function re-registers the symbolic name with the 7101 * switch to propagate the change into the fabric if the vport is active. 7102 **/ 7103 static void 7104 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7105 { 7106 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7107 7108 if (vport->port_state == LPFC_VPORT_READY) 7109 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7110 } 7111 7112 /** 7113 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7114 * @phba: Pointer to lpfc_hba struct. 7115 * 7116 * This function is called by the lpfc_get_cfgparam() routine to set the 7117 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7118 * log message according to the module's lpfc_log_verbose parameter setting 7119 * before hba port or vport created. 7120 **/ 7121 static void 7122 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7123 { 7124 phba->cfg_log_verbose = verbose; 7125 } 7126 7127 struct fc_function_template lpfc_transport_functions = { 7128 /* fixed attributes the driver supports */ 7129 .show_host_node_name = 1, 7130 .show_host_port_name = 1, 7131 .show_host_supported_classes = 1, 7132 .show_host_supported_fc4s = 1, 7133 .show_host_supported_speeds = 1, 7134 .show_host_maxframe_size = 1, 7135 7136 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7137 .show_host_symbolic_name = 1, 7138 7139 /* dynamic attributes the driver supports */ 7140 .get_host_port_id = lpfc_get_host_port_id, 7141 .show_host_port_id = 1, 7142 7143 .get_host_port_type = lpfc_get_host_port_type, 7144 .show_host_port_type = 1, 7145 7146 .get_host_port_state = lpfc_get_host_port_state, 7147 .show_host_port_state = 1, 7148 7149 /* active_fc4s is shown but doesn't change (thus no get function) */ 7150 .show_host_active_fc4s = 1, 7151 7152 .get_host_speed = lpfc_get_host_speed, 7153 .show_host_speed = 1, 7154 7155 .get_host_fabric_name = lpfc_get_host_fabric_name, 7156 .show_host_fabric_name = 1, 7157 7158 /* 7159 * The LPFC driver treats linkdown handling as target loss events 7160 * so there are no sysfs handlers for link_down_tmo. 7161 */ 7162 7163 .get_fc_host_stats = lpfc_get_stats, 7164 .reset_fc_host_stats = lpfc_reset_stats, 7165 7166 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7167 .show_rport_maxframe_size = 1, 7168 .show_rport_supported_classes = 1, 7169 7170 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7171 .show_rport_dev_loss_tmo = 1, 7172 7173 .get_starget_port_id = lpfc_get_starget_port_id, 7174 .show_starget_port_id = 1, 7175 7176 .get_starget_node_name = lpfc_get_starget_node_name, 7177 .show_starget_node_name = 1, 7178 7179 .get_starget_port_name = lpfc_get_starget_port_name, 7180 .show_starget_port_name = 1, 7181 7182 .issue_fc_host_lip = lpfc_issue_lip, 7183 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7184 .terminate_rport_io = lpfc_terminate_rport_io, 7185 7186 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7187 7188 .vport_disable = lpfc_vport_disable, 7189 7190 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7191 7192 .bsg_request = lpfc_bsg_request, 7193 .bsg_timeout = lpfc_bsg_timeout, 7194 }; 7195 7196 struct fc_function_template lpfc_vport_transport_functions = { 7197 /* fixed attributes the driver supports */ 7198 .show_host_node_name = 1, 7199 .show_host_port_name = 1, 7200 .show_host_supported_classes = 1, 7201 .show_host_supported_fc4s = 1, 7202 .show_host_supported_speeds = 1, 7203 .show_host_maxframe_size = 1, 7204 7205 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7206 .show_host_symbolic_name = 1, 7207 7208 /* dynamic attributes the driver supports */ 7209 .get_host_port_id = lpfc_get_host_port_id, 7210 .show_host_port_id = 1, 7211 7212 .get_host_port_type = lpfc_get_host_port_type, 7213 .show_host_port_type = 1, 7214 7215 .get_host_port_state = lpfc_get_host_port_state, 7216 .show_host_port_state = 1, 7217 7218 /* active_fc4s is shown but doesn't change (thus no get function) */ 7219 .show_host_active_fc4s = 1, 7220 7221 .get_host_speed = lpfc_get_host_speed, 7222 .show_host_speed = 1, 7223 7224 .get_host_fabric_name = lpfc_get_host_fabric_name, 7225 .show_host_fabric_name = 1, 7226 7227 /* 7228 * The LPFC driver treats linkdown handling as target loss events 7229 * so there are no sysfs handlers for link_down_tmo. 7230 */ 7231 7232 .get_fc_host_stats = lpfc_get_stats, 7233 .reset_fc_host_stats = lpfc_reset_stats, 7234 7235 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7236 .show_rport_maxframe_size = 1, 7237 .show_rport_supported_classes = 1, 7238 7239 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7240 .show_rport_dev_loss_tmo = 1, 7241 7242 .get_starget_port_id = lpfc_get_starget_port_id, 7243 .show_starget_port_id = 1, 7244 7245 .get_starget_node_name = lpfc_get_starget_node_name, 7246 .show_starget_node_name = 1, 7247 7248 .get_starget_port_name = lpfc_get_starget_port_name, 7249 .show_starget_port_name = 1, 7250 7251 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7252 .terminate_rport_io = lpfc_terminate_rport_io, 7253 7254 .vport_disable = lpfc_vport_disable, 7255 7256 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7257 }; 7258 7259 /** 7260 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7261 * Mode 7262 * @phba: lpfc_hba pointer. 7263 **/ 7264 static void 7265 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7266 { 7267 /* If the adapter supports FCoE mode */ 7268 switch (phba->pcidev->device) { 7269 case PCI_DEVICE_ID_SKYHAWK: 7270 case PCI_DEVICE_ID_SKYHAWK_VF: 7271 case PCI_DEVICE_ID_LANCER_FCOE: 7272 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7273 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7274 case PCI_DEVICE_ID_HORNET: 7275 case PCI_DEVICE_ID_TIGERSHARK: 7276 case PCI_DEVICE_ID_TOMCAT: 7277 phba->hba_flag |= HBA_FCOE_MODE; 7278 break; 7279 default: 7280 /* for others, clear the flag */ 7281 phba->hba_flag &= ~HBA_FCOE_MODE; 7282 } 7283 } 7284 7285 /** 7286 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7287 * @phba: lpfc_hba pointer. 7288 **/ 7289 void 7290 lpfc_get_cfgparam(struct lpfc_hba *phba) 7291 { 7292 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7293 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7294 lpfc_ns_query_init(phba, lpfc_ns_query); 7295 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7296 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7297 lpfc_cr_count_init(phba, lpfc_cr_count); 7298 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7299 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7300 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7301 lpfc_ack0_init(phba, lpfc_ack0); 7302 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7303 lpfc_topology_init(phba, lpfc_topology); 7304 lpfc_link_speed_init(phba, lpfc_link_speed); 7305 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7306 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7307 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7308 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7309 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7310 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7311 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7312 lpfc_use_msi_init(phba, lpfc_use_msi); 7313 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7314 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7315 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7316 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7317 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7318 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7319 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7320 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7321 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7322 7323 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7324 if (phba->sli_rev != LPFC_SLI_REV4) 7325 phba->cfg_EnableXLane = 0; 7326 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7327 7328 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7329 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7330 phba->cfg_oas_lun_state = 0; 7331 phba->cfg_oas_lun_status = 0; 7332 phba->cfg_oas_flags = 0; 7333 phba->cfg_oas_priority = 0; 7334 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7335 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7336 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7337 if (phba->sli_rev == LPFC_SLI_REV4) 7338 phba->cfg_poll = 0; 7339 else 7340 phba->cfg_poll = lpfc_poll; 7341 7342 /* Get the function mode */ 7343 lpfc_get_hba_function_mode(phba); 7344 7345 /* BlockGuard allowed for FC only. */ 7346 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7347 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7348 "0581 BlockGuard feature not supported\n"); 7349 /* If set, clear the BlockGuard support param */ 7350 phba->cfg_enable_bg = 0; 7351 } else if (phba->cfg_enable_bg) { 7352 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7353 } 7354 7355 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7356 7357 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7358 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7359 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7360 7361 /* Initialize first burst. Target vs Initiator are different. */ 7362 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7363 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7364 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7365 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7366 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7367 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7368 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7369 7370 if (phba->sli_rev != LPFC_SLI_REV4) { 7371 /* NVME only supported on SLI4 */ 7372 phba->nvmet_support = 0; 7373 phba->cfg_nvmet_mrq = 0; 7374 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7375 phba->cfg_enable_bbcr = 0; 7376 phba->cfg_xri_rebalancing = 0; 7377 } else { 7378 /* We MUST have FCP support */ 7379 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7380 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7381 } 7382 7383 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7384 7385 phba->cfg_enable_pbde = 0; 7386 7387 /* A value of 0 means use the number of CPUs found in the system */ 7388 if (phba->cfg_hdw_queue == 0) 7389 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7390 if (phba->cfg_irq_chann == 0) 7391 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7392 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7393 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7394 7395 phba->cfg_soft_wwnn = 0L; 7396 phba->cfg_soft_wwpn = 0L; 7397 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7398 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7399 lpfc_aer_support_init(phba, lpfc_aer_support); 7400 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7401 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7402 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7403 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7404 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7405 phba->cfg_enable_dss = 1; 7406 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7407 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7408 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7409 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7410 7411 return; 7412 } 7413 7414 /** 7415 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7416 * dependencies between protocols and roles. 7417 * @phba: lpfc_hba pointer. 7418 **/ 7419 void 7420 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7421 { 7422 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) 7423 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7424 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) 7425 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7426 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7427 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7428 7429 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7430 phba->nvmet_support) { 7431 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7432 7433 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7434 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7435 "NVME Target PRLI ACC enable_fb ", 7436 phba->cfg_nvme_enable_fb, 7437 phba->cfg_nvmet_fb_size, 7438 LPFC_NVMET_FB_SZ_MAX); 7439 7440 if (phba->cfg_nvme_enable_fb == 0) 7441 phba->cfg_nvmet_fb_size = 0; 7442 else { 7443 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7444 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7445 } 7446 7447 if (!phba->cfg_nvmet_mrq) 7448 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7449 7450 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7451 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7452 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7453 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7454 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7455 phba->cfg_nvmet_mrq); 7456 } 7457 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7458 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7459 7460 } else { 7461 /* Not NVME Target mode. Turn off Target parameters. */ 7462 phba->nvmet_support = 0; 7463 phba->cfg_nvmet_mrq = 0; 7464 phba->cfg_nvmet_fb_size = 0; 7465 } 7466 } 7467 7468 /** 7469 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7470 * @vport: lpfc_vport pointer. 7471 **/ 7472 void 7473 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7474 { 7475 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7476 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7477 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7478 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7479 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7480 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7481 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7482 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7483 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7484 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7485 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7486 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7487 lpfc_max_luns_init(vport, lpfc_max_luns); 7488 lpfc_scan_down_init(vport, lpfc_scan_down); 7489 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7490 return; 7491 } 7492