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