1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 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 "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_sli.h" 43 #include "lpfc_sli4.h" 44 #include "lpfc_nl.h" 45 #include "lpfc_disc.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_version.h" 51 #include "lpfc_compat.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_attr.h" 55 56 #define LPFC_DEF_DEVLOSS_TMO 30 57 #define LPFC_MIN_DEVLOSS_TMO 1 58 #define LPFC_MAX_DEVLOSS_TMO 255 59 60 #define LPFC_MAX_INFO_TMP_LEN 100 61 #define LPFC_INFO_MORE_STR "\nCould be more info...\n" 62 /* 63 * Write key size should be multiple of 4. If write key is changed 64 * make sure that library write key is also changed. 65 */ 66 #define LPFC_REG_WRITE_KEY_SIZE 4 67 #define LPFC_REG_WRITE_KEY "EMLX" 68 69 const char *const trunk_errmsg[] = { /* map errcode */ 70 "", /* There is no such error code at index 0*/ 71 "link negotiated speed does not match existing" 72 " trunk - link was \"low\" speed", 73 "link negotiated speed does not match" 74 " existing trunk - link was \"middle\" speed", 75 "link negotiated speed does not match existing" 76 " trunk - link was \"high\" speed", 77 "Attached to non-trunking port - F_Port", 78 "Attached to non-trunking port - N_Port", 79 "FLOGI response timeout", 80 "non-FLOGI frame received", 81 "Invalid FLOGI response", 82 "Trunking initialization protocol", 83 "Trunk peer device mismatch", 84 }; 85 86 /** 87 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 88 * @incr: integer to convert. 89 * @hdw: ascii string holding converted integer plus a string terminator. 90 * 91 * Description: 92 * JEDEC Joint Electron Device Engineering Council. 93 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 94 * character string. The string is then terminated with a NULL in byte 9. 95 * Hex 0-9 becomes ascii '0' to '9'. 96 * Hex a-f becomes ascii '=' to 'B' capital B. 97 * 98 * Notes: 99 * Coded for 32 bit integers only. 100 **/ 101 static void 102 lpfc_jedec_to_ascii(int incr, char hdw[]) 103 { 104 int i, j; 105 for (i = 0; i < 8; i++) { 106 j = (incr & 0xf); 107 if (j <= 9) 108 hdw[7 - i] = 0x30 + j; 109 else 110 hdw[7 - i] = 0x61 + j - 10; 111 incr = (incr >> 4); 112 } 113 hdw[8] = 0; 114 return; 115 } 116 117 static ssize_t 118 lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr, 119 char *buf) 120 { 121 struct Scsi_Host *shost = class_to_shost(dev); 122 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 123 struct lpfc_hba *phba = vport->phba; 124 struct lpfc_cgn_info *cp = NULL; 125 struct lpfc_cgn_stat *cgs; 126 int len = 0; 127 int cpu; 128 u64 rcv, total; 129 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 130 131 if (phba->cgn_i) 132 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt; 133 134 scnprintf(tmp, sizeof(tmp), 135 "Congestion Mgmt Info: E2Eattr %d Ver %d " 136 "CMF %d cnt %d\n", 137 phba->sli4_hba.pc_sli4_params.mi_ver, 138 cp ? cp->cgn_info_version : 0, 139 phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt); 140 141 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 142 goto buffer_done; 143 144 if (!phba->sli4_hba.pc_sli4_params.cmf) 145 goto buffer_done; 146 147 switch (phba->cgn_init_reg_signal) { 148 case EDC_CG_SIG_WARN_ONLY: 149 scnprintf(tmp, sizeof(tmp), 150 "Register: Init: Signal:WARN "); 151 break; 152 case EDC_CG_SIG_WARN_ALARM: 153 scnprintf(tmp, sizeof(tmp), 154 "Register: Init: Signal:WARN|ALARM "); 155 break; 156 default: 157 scnprintf(tmp, sizeof(tmp), 158 "Register: Init: Signal:NONE "); 159 break; 160 } 161 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 162 goto buffer_done; 163 164 switch (phba->cgn_init_reg_fpin) { 165 case LPFC_CGN_FPIN_WARN: 166 scnprintf(tmp, sizeof(tmp), 167 "FPIN:WARN\n"); 168 break; 169 case LPFC_CGN_FPIN_ALARM: 170 scnprintf(tmp, sizeof(tmp), 171 "FPIN:ALARM\n"); 172 break; 173 case LPFC_CGN_FPIN_BOTH: 174 scnprintf(tmp, sizeof(tmp), 175 "FPIN:WARN|ALARM\n"); 176 break; 177 default: 178 scnprintf(tmp, sizeof(tmp), 179 "FPIN:NONE\n"); 180 break; 181 } 182 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 183 goto buffer_done; 184 185 switch (phba->cgn_reg_signal) { 186 case EDC_CG_SIG_WARN_ONLY: 187 scnprintf(tmp, sizeof(tmp), 188 " Current: Signal:WARN "); 189 break; 190 case EDC_CG_SIG_WARN_ALARM: 191 scnprintf(tmp, sizeof(tmp), 192 " Current: Signal:WARN|ALARM "); 193 break; 194 default: 195 scnprintf(tmp, sizeof(tmp), 196 " Current: Signal:NONE "); 197 break; 198 } 199 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 200 goto buffer_done; 201 202 switch (phba->cgn_reg_fpin) { 203 case LPFC_CGN_FPIN_WARN: 204 scnprintf(tmp, sizeof(tmp), 205 "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt); 206 break; 207 case LPFC_CGN_FPIN_ALARM: 208 scnprintf(tmp, sizeof(tmp), 209 "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); 210 break; 211 case LPFC_CGN_FPIN_BOTH: 212 scnprintf(tmp, sizeof(tmp), 213 "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); 214 break; 215 default: 216 scnprintf(tmp, sizeof(tmp), 217 "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt); 218 break; 219 } 220 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 221 goto buffer_done; 222 223 if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) { 224 switch (phba->cmf_active_mode) { 225 case LPFC_CFG_OFF: 226 scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n"); 227 break; 228 case LPFC_CFG_MANAGED: 229 scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n"); 230 break; 231 case LPFC_CFG_MONITOR: 232 scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n"); 233 break; 234 default: 235 scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n"); 236 } 237 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 238 goto buffer_done; 239 } 240 241 switch (phba->cgn_p.cgn_param_mode) { 242 case LPFC_CFG_OFF: 243 scnprintf(tmp, sizeof(tmp), "Config: Mode:Off "); 244 break; 245 case LPFC_CFG_MANAGED: 246 scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed "); 247 break; 248 case LPFC_CFG_MONITOR: 249 scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor "); 250 break; 251 default: 252 scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown "); 253 } 254 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 255 goto buffer_done; 256 257 total = 0; 258 rcv = 0; 259 for_each_present_cpu(cpu) { 260 cgs = per_cpu_ptr(phba->cmf_stat, cpu); 261 total += atomic64_read(&cgs->total_bytes); 262 rcv += atomic64_read(&cgs->rcv_bytes); 263 } 264 265 scnprintf(tmp, sizeof(tmp), 266 "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n", 267 atomic_read(&phba->cmf_busy), 268 phba->cmf_active_info, rcv, total); 269 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 270 goto buffer_done; 271 272 scnprintf(tmp, sizeof(tmp), 273 "Port_speed:%d Link_byte_cnt:%ld " 274 "Max_byte_per_interval:%ld\n", 275 lpfc_sli_port_speed_get(phba), 276 (unsigned long)phba->cmf_link_byte_count, 277 (unsigned long)phba->cmf_max_bytes_per_interval); 278 strlcat(buf, tmp, PAGE_SIZE); 279 280 buffer_done: 281 len = strnlen(buf, PAGE_SIZE); 282 283 if (unlikely(len >= (PAGE_SIZE - 1))) { 284 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT, 285 "6312 Catching potential buffer " 286 "overflow > PAGE_SIZE = %lu bytes\n", 287 PAGE_SIZE); 288 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 289 LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); 290 } 291 return len; 292 } 293 294 /** 295 * lpfc_drvr_version_show - Return the Emulex driver string with version number 296 * @dev: class unused variable. 297 * @attr: device attribute, not used. 298 * @buf: on return contains the module description text. 299 * 300 * Returns: size of formatted string. 301 **/ 302 static ssize_t 303 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 304 char *buf) 305 { 306 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 307 } 308 309 /** 310 * lpfc_enable_fip_show - Return the fip mode of the HBA 311 * @dev: class unused variable. 312 * @attr: device attribute, not used. 313 * @buf: on return contains the module description text. 314 * 315 * Returns: size of formatted string. 316 **/ 317 static ssize_t 318 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 319 char *buf) 320 { 321 struct Scsi_Host *shost = class_to_shost(dev); 322 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 323 struct lpfc_hba *phba = vport->phba; 324 325 if (phba->hba_flag & HBA_FIP_SUPPORT) 326 return scnprintf(buf, PAGE_SIZE, "1\n"); 327 else 328 return scnprintf(buf, PAGE_SIZE, "0\n"); 329 } 330 331 static ssize_t 332 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 333 char *buf) 334 { 335 struct Scsi_Host *shost = class_to_shost(dev); 336 struct lpfc_vport *vport = shost_priv(shost); 337 struct lpfc_hba *phba = vport->phba; 338 struct lpfc_nvmet_tgtport *tgtp; 339 struct nvme_fc_local_port *localport; 340 struct lpfc_nvme_lport *lport; 341 struct lpfc_nvme_rport *rport; 342 struct lpfc_nodelist *ndlp; 343 struct nvme_fc_remote_port *nrport; 344 struct lpfc_fc4_ctrl_stat *cstat; 345 uint64_t data1, data2, data3; 346 uint64_t totin, totout, tot; 347 char *statep; 348 int i; 349 int len = 0; 350 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 351 352 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 353 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 354 return len; 355 } 356 if (phba->nvmet_support) { 357 if (!phba->targetport) { 358 len = scnprintf(buf, PAGE_SIZE, 359 "NVME Target: x%llx is not allocated\n", 360 wwn_to_u64(vport->fc_portname.u.wwn)); 361 return len; 362 } 363 /* Port state is only one of two values for now. */ 364 if (phba->targetport->port_id) 365 statep = "REGISTERED"; 366 else 367 statep = "INIT"; 368 scnprintf(tmp, sizeof(tmp), 369 "NVME Target Enabled State %s\n", 370 statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 scnprintf(tmp, sizeof(tmp), 375 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 376 "NVME Target: lpfc", 377 phba->brd_no, 378 wwn_to_u64(vport->fc_portname.u.wwn), 379 wwn_to_u64(vport->fc_nodename.u.wwn), 380 phba->targetport->port_id); 381 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 382 goto buffer_done; 383 384 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 385 >= PAGE_SIZE) 386 goto buffer_done; 387 388 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 389 scnprintf(tmp, sizeof(tmp), 390 "LS: Rcv %08x Drop %08x Abort %08x\n", 391 atomic_read(&tgtp->rcv_ls_req_in), 392 atomic_read(&tgtp->rcv_ls_req_drop), 393 atomic_read(&tgtp->xmt_ls_abort)); 394 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 395 goto buffer_done; 396 397 if (atomic_read(&tgtp->rcv_ls_req_in) != 398 atomic_read(&tgtp->rcv_ls_req_out)) { 399 scnprintf(tmp, sizeof(tmp), 400 "Rcv LS: in %08x != out %08x\n", 401 atomic_read(&tgtp->rcv_ls_req_in), 402 atomic_read(&tgtp->rcv_ls_req_out)); 403 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 404 goto buffer_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), 408 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 409 atomic_read(&tgtp->xmt_ls_rsp), 410 atomic_read(&tgtp->xmt_ls_drop), 411 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto buffer_done; 414 415 scnprintf(tmp, sizeof(tmp), 416 "LS: RSP Abort %08x xb %08x Err %08x\n", 417 atomic_read(&tgtp->xmt_ls_rsp_aborted), 418 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 419 atomic_read(&tgtp->xmt_ls_rsp_error)); 420 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 421 goto buffer_done; 422 423 scnprintf(tmp, sizeof(tmp), 424 "FCP: Rcv %08x Defer %08x Release %08x " 425 "Drop %08x\n", 426 atomic_read(&tgtp->rcv_fcp_cmd_in), 427 atomic_read(&tgtp->rcv_fcp_cmd_defer), 428 atomic_read(&tgtp->xmt_fcp_release), 429 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 430 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 431 goto buffer_done; 432 433 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 434 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 435 scnprintf(tmp, sizeof(tmp), 436 "Rcv FCP: in %08x != out %08x\n", 437 atomic_read(&tgtp->rcv_fcp_cmd_in), 438 atomic_read(&tgtp->rcv_fcp_cmd_out)); 439 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 440 goto buffer_done; 441 } 442 443 scnprintf(tmp, sizeof(tmp), 444 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 445 "drop %08x\n", 446 atomic_read(&tgtp->xmt_fcp_read), 447 atomic_read(&tgtp->xmt_fcp_read_rsp), 448 atomic_read(&tgtp->xmt_fcp_write), 449 atomic_read(&tgtp->xmt_fcp_rsp), 450 atomic_read(&tgtp->xmt_fcp_drop)); 451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 452 goto buffer_done; 453 454 scnprintf(tmp, sizeof(tmp), 455 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 456 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 457 atomic_read(&tgtp->xmt_fcp_rsp_error), 458 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 459 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 460 goto buffer_done; 461 462 scnprintf(tmp, sizeof(tmp), 463 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 464 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 465 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 466 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 467 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 468 goto buffer_done; 469 470 scnprintf(tmp, sizeof(tmp), 471 "ABORT: Xmt %08x Cmpl %08x\n", 472 atomic_read(&tgtp->xmt_fcp_abort), 473 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 474 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 475 goto buffer_done; 476 477 scnprintf(tmp, sizeof(tmp), 478 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 479 atomic_read(&tgtp->xmt_abort_sol), 480 atomic_read(&tgtp->xmt_abort_unsol), 481 atomic_read(&tgtp->xmt_abort_rsp), 482 atomic_read(&tgtp->xmt_abort_rsp_error)); 483 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 484 goto buffer_done; 485 486 scnprintf(tmp, sizeof(tmp), 487 "DELAY: ctx %08x fod %08x wqfull %08x\n", 488 atomic_read(&tgtp->defer_ctx), 489 atomic_read(&tgtp->defer_fod), 490 atomic_read(&tgtp->defer_wqfull)); 491 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 492 goto buffer_done; 493 494 /* Calculate outstanding IOs */ 495 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 496 tot += atomic_read(&tgtp->xmt_fcp_release); 497 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 498 499 scnprintf(tmp, sizeof(tmp), 500 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 501 "CTX Outstanding %08llx\n\n", 502 phba->sli4_hba.nvmet_xri_cnt, 503 phba->sli4_hba.nvmet_io_wait_cnt, 504 phba->sli4_hba.nvmet_io_wait_total, 505 tot); 506 strlcat(buf, tmp, PAGE_SIZE); 507 goto buffer_done; 508 } 509 510 localport = vport->localport; 511 if (!localport) { 512 len = scnprintf(buf, PAGE_SIZE, 513 "NVME Initiator x%llx is not allocated\n", 514 wwn_to_u64(vport->fc_portname.u.wwn)); 515 return len; 516 } 517 lport = (struct lpfc_nvme_lport *)localport->private; 518 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 519 goto buffer_done; 520 521 scnprintf(tmp, sizeof(tmp), 522 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 523 phba->brd_no, 524 phba->sli4_hba.max_cfg_param.max_xri, 525 phba->sli4_hba.io_xri_max, 526 lpfc_sli4_get_els_iocb_cnt(phba)); 527 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 528 goto buffer_done; 529 530 /* Port state is only one of two values for now. */ 531 if (localport->port_id) 532 statep = "ONLINE"; 533 else 534 statep = "UNKNOWN "; 535 536 scnprintf(tmp, sizeof(tmp), 537 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 538 "NVME LPORT lpfc", 539 phba->brd_no, 540 wwn_to_u64(vport->fc_portname.u.wwn), 541 wwn_to_u64(vport->fc_nodename.u.wwn), 542 localport->port_id, statep); 543 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 544 goto buffer_done; 545 546 spin_lock_irq(shost->host_lock); 547 548 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 549 nrport = NULL; 550 spin_lock(&ndlp->lock); 551 rport = lpfc_ndlp_get_nrport(ndlp); 552 if (rport) 553 nrport = rport->remoteport; 554 spin_unlock(&ndlp->lock); 555 if (!nrport) 556 continue; 557 558 /* Port state is only one of two values for now. */ 559 switch (nrport->port_state) { 560 case FC_OBJSTATE_ONLINE: 561 statep = "ONLINE"; 562 break; 563 case FC_OBJSTATE_UNKNOWN: 564 statep = "UNKNOWN "; 565 break; 566 default: 567 statep = "UNSUPPORTED"; 568 break; 569 } 570 571 /* Tab in to show lport ownership. */ 572 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 573 goto unlock_buf_done; 574 if (phba->brd_no >= 10) { 575 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 576 goto unlock_buf_done; 577 } 578 579 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 580 nrport->port_name); 581 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 582 goto unlock_buf_done; 583 584 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 585 nrport->node_name); 586 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 587 goto unlock_buf_done; 588 589 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 590 nrport->port_id); 591 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 592 goto unlock_buf_done; 593 594 /* An NVME rport can have multiple roles. */ 595 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 596 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 597 goto unlock_buf_done; 598 } 599 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 600 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 601 goto unlock_buf_done; 602 } 603 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 604 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 605 goto unlock_buf_done; 606 } 607 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 608 FC_PORT_ROLE_NVME_TARGET | 609 FC_PORT_ROLE_NVME_DISCOVERY)) { 610 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 611 nrport->port_role); 612 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 613 goto unlock_buf_done; 614 } 615 616 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 617 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 618 goto unlock_buf_done; 619 } 620 spin_unlock_irq(shost->host_lock); 621 622 if (!lport) 623 goto buffer_done; 624 625 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 626 goto buffer_done; 627 628 scnprintf(tmp, sizeof(tmp), 629 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 630 atomic_read(&lport->fc4NvmeLsRequests), 631 atomic_read(&lport->fc4NvmeLsCmpls), 632 atomic_read(&lport->xmt_ls_abort)); 633 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 634 goto buffer_done; 635 636 scnprintf(tmp, sizeof(tmp), 637 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 638 atomic_read(&lport->xmt_ls_err), 639 atomic_read(&lport->cmpl_ls_xb), 640 atomic_read(&lport->cmpl_ls_err)); 641 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 642 goto buffer_done; 643 644 totin = 0; 645 totout = 0; 646 for (i = 0; i < phba->cfg_hdw_queue; i++) { 647 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 648 tot = cstat->io_cmpls; 649 totin += tot; 650 data1 = cstat->input_requests; 651 data2 = cstat->output_requests; 652 data3 = cstat->control_requests; 653 totout += (data1 + data2 + data3); 654 } 655 scnprintf(tmp, sizeof(tmp), 656 "Total FCP Cmpl %016llx Issue %016llx " 657 "OutIO %016llx\n", 658 totin, totout, totout - totin); 659 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 660 goto buffer_done; 661 662 scnprintf(tmp, sizeof(tmp), 663 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 664 "wqerr %08x err %08x\n", 665 atomic_read(&lport->xmt_fcp_abort), 666 atomic_read(&lport->xmt_fcp_noxri), 667 atomic_read(&lport->xmt_fcp_bad_ndlp), 668 atomic_read(&lport->xmt_fcp_qdepth), 669 atomic_read(&lport->xmt_fcp_wqerr), 670 atomic_read(&lport->xmt_fcp_err)); 671 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 672 goto buffer_done; 673 674 scnprintf(tmp, sizeof(tmp), 675 "FCP CMPL: xb %08x Err %08x\n", 676 atomic_read(&lport->cmpl_fcp_xb), 677 atomic_read(&lport->cmpl_fcp_err)); 678 strlcat(buf, tmp, PAGE_SIZE); 679 680 /* host_lock is already unlocked. */ 681 goto buffer_done; 682 683 unlock_buf_done: 684 spin_unlock_irq(shost->host_lock); 685 686 buffer_done: 687 len = strnlen(buf, PAGE_SIZE); 688 689 if (unlikely(len >= (PAGE_SIZE - 1))) { 690 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 691 "6314 Catching potential buffer " 692 "overflow > PAGE_SIZE = %lu bytes\n", 693 PAGE_SIZE); 694 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 695 LPFC_INFO_MORE_STR, 696 sizeof(LPFC_INFO_MORE_STR) + 1); 697 } 698 699 return len; 700 } 701 702 static ssize_t 703 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 704 char *buf) 705 { 706 struct Scsi_Host *shost = class_to_shost(dev); 707 struct lpfc_vport *vport = shost_priv(shost); 708 struct lpfc_hba *phba = vport->phba; 709 int len; 710 struct lpfc_fc4_ctrl_stat *cstat; 711 u64 data1, data2, data3; 712 u64 tot, totin, totout; 713 int i; 714 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 715 716 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 717 (phba->sli_rev != LPFC_SLI_REV4)) 718 return 0; 719 720 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 721 722 totin = 0; 723 totout = 0; 724 for (i = 0; i < phba->cfg_hdw_queue; i++) { 725 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 726 tot = cstat->io_cmpls; 727 totin += tot; 728 data1 = cstat->input_requests; 729 data2 = cstat->output_requests; 730 data3 = cstat->control_requests; 731 totout += (data1 + data2 + data3); 732 733 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 734 "IO %016llx ", i, data1, data2, data3); 735 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 736 goto buffer_done; 737 738 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 739 tot, ((data1 + data2 + data3) - tot)); 740 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 741 goto buffer_done; 742 } 743 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 744 "OutIO %016llx\n", totin, totout, totout - totin); 745 strlcat(buf, tmp, PAGE_SIZE); 746 747 buffer_done: 748 len = strnlen(buf, PAGE_SIZE); 749 750 return len; 751 } 752 753 static ssize_t 754 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 755 char *buf) 756 { 757 struct Scsi_Host *shost = class_to_shost(dev); 758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 759 struct lpfc_hba *phba = vport->phba; 760 761 if (phba->cfg_enable_bg) { 762 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 763 return scnprintf(buf, PAGE_SIZE, 764 "BlockGuard Enabled\n"); 765 else 766 return scnprintf(buf, PAGE_SIZE, 767 "BlockGuard Not Supported\n"); 768 } else 769 return scnprintf(buf, PAGE_SIZE, 770 "BlockGuard Disabled\n"); 771 } 772 773 static ssize_t 774 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 775 char *buf) 776 { 777 struct Scsi_Host *shost = class_to_shost(dev); 778 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 779 struct lpfc_hba *phba = vport->phba; 780 781 return scnprintf(buf, PAGE_SIZE, "%llu\n", 782 (unsigned long long)phba->bg_guard_err_cnt); 783 } 784 785 static ssize_t 786 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 787 char *buf) 788 { 789 struct Scsi_Host *shost = class_to_shost(dev); 790 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 791 struct lpfc_hba *phba = vport->phba; 792 793 return scnprintf(buf, PAGE_SIZE, "%llu\n", 794 (unsigned long long)phba->bg_apptag_err_cnt); 795 } 796 797 static ssize_t 798 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 799 char *buf) 800 { 801 struct Scsi_Host *shost = class_to_shost(dev); 802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 803 struct lpfc_hba *phba = vport->phba; 804 805 return scnprintf(buf, PAGE_SIZE, "%llu\n", 806 (unsigned long long)phba->bg_reftag_err_cnt); 807 } 808 809 /** 810 * lpfc_info_show - Return some pci info about the host in ascii 811 * @dev: class converted to a Scsi_host structure. 812 * @attr: device attribute, not used. 813 * @buf: on return contains the formatted text from lpfc_info(). 814 * 815 * Returns: size of formatted string. 816 **/ 817 static ssize_t 818 lpfc_info_show(struct device *dev, struct device_attribute *attr, 819 char *buf) 820 { 821 struct Scsi_Host *host = class_to_shost(dev); 822 823 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 824 } 825 826 /** 827 * lpfc_serialnum_show - Return the hba serial number in ascii 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the formatted text serial number. 831 * 832 * Returns: size of formatted string. 833 **/ 834 static ssize_t 835 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 836 char *buf) 837 { 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; 841 842 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 843 } 844 845 /** 846 * lpfc_temp_sensor_show - Return the temperature sensor level 847 * @dev: class converted to a Scsi_host structure. 848 * @attr: device attribute, not used. 849 * @buf: on return contains the formatted support level. 850 * 851 * Description: 852 * Returns a number indicating the temperature sensor level currently 853 * supported, zero or one in ascii. 854 * 855 * Returns: size of formatted string. 856 **/ 857 static ssize_t 858 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 859 char *buf) 860 { 861 struct Scsi_Host *shost = class_to_shost(dev); 862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 863 struct lpfc_hba *phba = vport->phba; 864 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 865 } 866 867 /** 868 * lpfc_modeldesc_show - Return the model description of the hba 869 * @dev: class converted to a Scsi_host structure. 870 * @attr: device attribute, not used. 871 * @buf: on return contains the scsi vpd model description. 872 * 873 * Returns: size of formatted string. 874 **/ 875 static ssize_t 876 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878 { 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 883 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 884 } 885 886 /** 887 * lpfc_modelname_show - Return the model name of the hba 888 * @dev: class converted to a Scsi_host structure. 889 * @attr: device attribute, not used. 890 * @buf: on return contains the scsi vpd model name. 891 * 892 * Returns: size of formatted string. 893 **/ 894 static ssize_t 895 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 896 char *buf) 897 { 898 struct Scsi_Host *shost = class_to_shost(dev); 899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 900 struct lpfc_hba *phba = vport->phba; 901 902 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 903 } 904 905 /** 906 * lpfc_programtype_show - Return the program type of the hba 907 * @dev: class converted to a Scsi_host structure. 908 * @attr: device attribute, not used. 909 * @buf: on return contains the scsi vpd program type. 910 * 911 * Returns: size of formatted string. 912 **/ 913 static ssize_t 914 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 915 char *buf) 916 { 917 struct Scsi_Host *shost = class_to_shost(dev); 918 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 919 struct lpfc_hba *phba = vport->phba; 920 921 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 922 } 923 924 /** 925 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 926 * @dev: class converted to a Scsi_host structure. 927 * @attr: device attribute, not used. 928 * @buf: on return contains the Menlo Maintenance sli flag. 929 * 930 * Returns: size of formatted string. 931 **/ 932 static ssize_t 933 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 934 { 935 struct Scsi_Host *shost = class_to_shost(dev); 936 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 937 struct lpfc_hba *phba = vport->phba; 938 939 return scnprintf(buf, PAGE_SIZE, "%d\n", 940 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 941 } 942 943 /** 944 * lpfc_vportnum_show - Return the port number in ascii of the hba 945 * @dev: class converted to a Scsi_host structure. 946 * @attr: device attribute, not used. 947 * @buf: on return contains scsi vpd program type. 948 * 949 * Returns: size of formatted string. 950 **/ 951 static ssize_t 952 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 953 char *buf) 954 { 955 struct Scsi_Host *shost = class_to_shost(dev); 956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 957 struct lpfc_hba *phba = vport->phba; 958 959 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 960 } 961 962 /** 963 * lpfc_fwrev_show - Return the firmware rev running in the hba 964 * @dev: class converted to a Scsi_host structure. 965 * @attr: device attribute, not used. 966 * @buf: on return contains the scsi vpd program type. 967 * 968 * Returns: size of formatted string. 969 **/ 970 static ssize_t 971 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 972 char *buf) 973 { 974 struct Scsi_Host *shost = class_to_shost(dev); 975 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 976 struct lpfc_hba *phba = vport->phba; 977 uint32_t if_type; 978 uint8_t sli_family; 979 char fwrev[FW_REV_STR_SIZE]; 980 int len; 981 982 lpfc_decode_firmware_rev(phba, fwrev, 1); 983 if_type = phba->sli4_hba.pc_sli4_params.if_type; 984 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 985 986 if (phba->sli_rev < LPFC_SLI_REV4) 987 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 988 fwrev, phba->sli_rev); 989 else 990 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 991 fwrev, phba->sli_rev, if_type, sli_family); 992 993 return len; 994 } 995 996 /** 997 * lpfc_hdw_show - Return the jedec information about the hba 998 * @dev: class converted to a Scsi_host structure. 999 * @attr: device attribute, not used. 1000 * @buf: on return contains the scsi vpd program type. 1001 * 1002 * Returns: size of formatted string. 1003 **/ 1004 static ssize_t 1005 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 1006 { 1007 char hdw[9]; 1008 struct Scsi_Host *shost = class_to_shost(dev); 1009 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1010 struct lpfc_hba *phba = vport->phba; 1011 lpfc_vpd_t *vp = &phba->vpd; 1012 1013 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 1014 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 1015 vp->rev.smRev, vp->rev.smFwRev); 1016 } 1017 1018 /** 1019 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 1020 * @dev: class converted to a Scsi_host structure. 1021 * @attr: device attribute, not used. 1022 * @buf: on return contains the ROM and FCode ascii strings. 1023 * 1024 * Returns: size of formatted string. 1025 **/ 1026 static ssize_t 1027 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 1028 char *buf) 1029 { 1030 struct Scsi_Host *shost = class_to_shost(dev); 1031 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1032 struct lpfc_hba *phba = vport->phba; 1033 char fwrev[FW_REV_STR_SIZE]; 1034 1035 if (phba->sli_rev < LPFC_SLI_REV4) 1036 return scnprintf(buf, PAGE_SIZE, "%s\n", 1037 phba->OptionROMVersion); 1038 1039 lpfc_decode_firmware_rev(phba, fwrev, 1); 1040 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 1041 } 1042 1043 /** 1044 * lpfc_link_state_show - Return the link state of the port 1045 * @dev: class converted to a Scsi_host structure. 1046 * @attr: device attribute, not used. 1047 * @buf: on return contains text describing the state of the link. 1048 * 1049 * Notes: 1050 * The switch statement has no default so zero will be returned. 1051 * 1052 * Returns: size of formatted string. 1053 **/ 1054 static ssize_t 1055 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 1056 char *buf) 1057 { 1058 struct Scsi_Host *shost = class_to_shost(dev); 1059 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1060 struct lpfc_hba *phba = vport->phba; 1061 int len = 0; 1062 1063 switch (phba->link_state) { 1064 case LPFC_LINK_UNKNOWN: 1065 case LPFC_WARM_START: 1066 case LPFC_INIT_START: 1067 case LPFC_INIT_MBX_CMDS: 1068 case LPFC_LINK_DOWN: 1069 case LPFC_HBA_ERROR: 1070 if (phba->hba_flag & LINK_DISABLED) 1071 len += scnprintf(buf + len, PAGE_SIZE-len, 1072 "Link Down - User disabled\n"); 1073 else 1074 len += scnprintf(buf + len, PAGE_SIZE-len, 1075 "Link Down\n"); 1076 break; 1077 case LPFC_LINK_UP: 1078 case LPFC_CLEAR_LA: 1079 case LPFC_HBA_READY: 1080 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 1081 1082 switch (vport->port_state) { 1083 case LPFC_LOCAL_CFG_LINK: 1084 len += scnprintf(buf + len, PAGE_SIZE-len, 1085 "Configuring Link\n"); 1086 break; 1087 case LPFC_FDISC: 1088 case LPFC_FLOGI: 1089 case LPFC_FABRIC_CFG_LINK: 1090 case LPFC_NS_REG: 1091 case LPFC_NS_QRY: 1092 case LPFC_BUILD_DISC_LIST: 1093 case LPFC_DISC_AUTH: 1094 len += scnprintf(buf + len, PAGE_SIZE - len, 1095 "Discovery\n"); 1096 break; 1097 case LPFC_VPORT_READY: 1098 len += scnprintf(buf + len, PAGE_SIZE - len, 1099 "Ready\n"); 1100 break; 1101 1102 case LPFC_VPORT_FAILED: 1103 len += scnprintf(buf + len, PAGE_SIZE - len, 1104 "Failed\n"); 1105 break; 1106 1107 case LPFC_VPORT_UNKNOWN: 1108 len += scnprintf(buf + len, PAGE_SIZE - len, 1109 "Unknown\n"); 1110 break; 1111 } 1112 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 1113 len += scnprintf(buf + len, PAGE_SIZE-len, 1114 " Menlo Maint Mode\n"); 1115 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1116 if (vport->fc_flag & FC_PUBLIC_LOOP) 1117 len += scnprintf(buf + len, PAGE_SIZE-len, 1118 " Public Loop\n"); 1119 else 1120 len += scnprintf(buf + len, PAGE_SIZE-len, 1121 " Private Loop\n"); 1122 } else { 1123 if (vport->fc_flag & FC_FABRIC) 1124 len += scnprintf(buf + len, PAGE_SIZE-len, 1125 " Fabric\n"); 1126 else 1127 len += scnprintf(buf + len, PAGE_SIZE-len, 1128 " Point-2-Point\n"); 1129 } 1130 } 1131 1132 if ((phba->sli_rev == LPFC_SLI_REV4) && 1133 ((bf_get(lpfc_sli_intf_if_type, 1134 &phba->sli4_hba.sli_intf) == 1135 LPFC_SLI_INTF_IF_TYPE_6))) { 1136 struct lpfc_trunk_link link = phba->trunk_link; 1137 1138 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 1139 len += scnprintf(buf + len, PAGE_SIZE - len, 1140 "Trunk port 0: Link %s %s\n", 1141 (link.link0.state == LPFC_LINK_UP) ? 1142 "Up" : "Down. ", 1143 trunk_errmsg[link.link0.fault]); 1144 1145 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 1146 len += scnprintf(buf + len, PAGE_SIZE - len, 1147 "Trunk port 1: Link %s %s\n", 1148 (link.link1.state == LPFC_LINK_UP) ? 1149 "Up" : "Down. ", 1150 trunk_errmsg[link.link1.fault]); 1151 1152 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 1153 len += scnprintf(buf + len, PAGE_SIZE - len, 1154 "Trunk port 2: Link %s %s\n", 1155 (link.link2.state == LPFC_LINK_UP) ? 1156 "Up" : "Down. ", 1157 trunk_errmsg[link.link2.fault]); 1158 1159 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 1160 len += scnprintf(buf + len, PAGE_SIZE - len, 1161 "Trunk port 3: Link %s %s\n", 1162 (link.link3.state == LPFC_LINK_UP) ? 1163 "Up" : "Down. ", 1164 trunk_errmsg[link.link3.fault]); 1165 1166 } 1167 1168 return len; 1169 } 1170 1171 /** 1172 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1173 * @dev: class unused variable. 1174 * @attr: device attribute, not used. 1175 * @buf: on return contains the module description text. 1176 * 1177 * Returns: size of formatted string. 1178 **/ 1179 static ssize_t 1180 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1181 char *buf) 1182 { 1183 struct Scsi_Host *shost = class_to_shost(dev); 1184 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1185 struct lpfc_hba *phba = vport->phba; 1186 1187 if (phba->sli_rev < LPFC_SLI_REV4) 1188 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1189 1190 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1191 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1192 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1193 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1194 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1195 } 1196 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1197 } 1198 1199 /** 1200 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1201 * (OAS) is supported. 1202 * @dev: class unused variable. 1203 * @attr: device attribute, not used. 1204 * @buf: on return contains the module description text. 1205 * 1206 * Returns: size of formatted string. 1207 **/ 1208 static ssize_t 1209 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1210 char *buf) 1211 { 1212 struct Scsi_Host *shost = class_to_shost(dev); 1213 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1214 struct lpfc_hba *phba = vport->phba; 1215 1216 return scnprintf(buf, PAGE_SIZE, "%d\n", 1217 phba->sli4_hba.pc_sli4_params.oas_supported); 1218 } 1219 1220 /** 1221 * lpfc_link_state_store - Transition the link_state on an HBA port 1222 * @dev: class device that is converted into a Scsi_host. 1223 * @attr: device attribute, not used. 1224 * @buf: one or more lpfc_polling_flags values. 1225 * @count: not used. 1226 * 1227 * Returns: 1228 * -EINVAL if the buffer is not "up" or "down" 1229 * return from link state change function if non-zero 1230 * length of the buf on success 1231 **/ 1232 static ssize_t 1233 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1234 const char *buf, size_t count) 1235 { 1236 struct Scsi_Host *shost = class_to_shost(dev); 1237 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1238 struct lpfc_hba *phba = vport->phba; 1239 1240 int status = -EINVAL; 1241 1242 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1243 (phba->link_state == LPFC_LINK_DOWN)) 1244 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1245 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1246 (phba->link_state >= LPFC_LINK_UP)) 1247 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1248 1249 if (status == 0) 1250 return strlen(buf); 1251 else 1252 return status; 1253 } 1254 1255 /** 1256 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1257 * @dev: class device that is converted into a Scsi_host. 1258 * @attr: device attribute, not used. 1259 * @buf: on return contains the sum of fc mapped and unmapped. 1260 * 1261 * Description: 1262 * Returns the ascii text number of the sum of the fc mapped and unmapped 1263 * vport counts. 1264 * 1265 * Returns: size of formatted string. 1266 **/ 1267 static ssize_t 1268 lpfc_num_discovered_ports_show(struct device *dev, 1269 struct device_attribute *attr, char *buf) 1270 { 1271 struct Scsi_Host *shost = class_to_shost(dev); 1272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1273 1274 return scnprintf(buf, PAGE_SIZE, "%d\n", 1275 vport->fc_map_cnt + vport->fc_unmap_cnt); 1276 } 1277 1278 /** 1279 * lpfc_issue_lip - Misnomer, name carried over from long ago 1280 * @shost: Scsi_Host pointer. 1281 * 1282 * Description: 1283 * Bring the link down gracefully then re-init the link. The firmware will 1284 * re-init the fiber channel interface as required. Does not issue a LIP. 1285 * 1286 * Returns: 1287 * -EPERM port offline or management commands are being blocked 1288 * -ENOMEM cannot allocate memory for the mailbox command 1289 * -EIO error sending the mailbox command 1290 * zero for success 1291 **/ 1292 static int 1293 lpfc_issue_lip(struct Scsi_Host *shost) 1294 { 1295 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1296 struct lpfc_hba *phba = vport->phba; 1297 LPFC_MBOXQ_t *pmboxq; 1298 int mbxstatus = MBXERR_ERROR; 1299 1300 /* 1301 * If the link is offline, disabled or BLOCK_MGMT_IO 1302 * it doesn't make any sense to allow issue_lip 1303 */ 1304 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1305 (phba->hba_flag & LINK_DISABLED) || 1306 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1307 return -EPERM; 1308 1309 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1310 1311 if (!pmboxq) 1312 return -ENOMEM; 1313 1314 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1315 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1316 pmboxq->u.mb.mbxOwner = OWN_HOST; 1317 1318 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1319 1320 if ((mbxstatus == MBX_SUCCESS) && 1321 (pmboxq->u.mb.mbxStatus == 0 || 1322 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1323 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1324 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1325 phba->cfg_link_speed); 1326 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1327 phba->fc_ratov * 2); 1328 if ((mbxstatus == MBX_SUCCESS) && 1329 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1330 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1331 "2859 SLI authentication is required " 1332 "for INIT_LINK but has not done yet\n"); 1333 } 1334 1335 lpfc_set_loopback_flag(phba); 1336 if (mbxstatus != MBX_TIMEOUT) 1337 mempool_free(pmboxq, phba->mbox_mem_pool); 1338 1339 if (mbxstatus == MBXERR_ERROR) 1340 return -EIO; 1341 1342 return 0; 1343 } 1344 1345 int 1346 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1347 { 1348 int cnt = 0; 1349 1350 spin_lock_irq(lock); 1351 while (!list_empty(q)) { 1352 spin_unlock_irq(lock); 1353 msleep(20); 1354 if (cnt++ > 250) { /* 5 secs */ 1355 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1356 "0466 Outstanding IO when " 1357 "bringing Adapter offline\n"); 1358 return 0; 1359 } 1360 spin_lock_irq(lock); 1361 } 1362 spin_unlock_irq(lock); 1363 return 1; 1364 } 1365 1366 /** 1367 * lpfc_do_offline - Issues a mailbox command to bring the link down 1368 * @phba: lpfc_hba pointer. 1369 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1370 * 1371 * Notes: 1372 * Assumes any error from lpfc_do_offline() will be negative. 1373 * Can wait up to 5 seconds for the port ring buffers count 1374 * to reach zero, prints a warning if it is not zero and continues. 1375 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1376 * 1377 * Returns: 1378 * -EIO error posting the event 1379 * zero for success 1380 **/ 1381 static int 1382 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1383 { 1384 struct completion online_compl; 1385 struct lpfc_queue *qp = NULL; 1386 struct lpfc_sli_ring *pring; 1387 struct lpfc_sli *psli; 1388 int status = 0; 1389 int i; 1390 int rc; 1391 1392 init_completion(&online_compl); 1393 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1394 LPFC_EVT_OFFLINE_PREP); 1395 if (rc == 0) 1396 return -ENOMEM; 1397 1398 wait_for_completion(&online_compl); 1399 1400 if (status != 0) 1401 return -EIO; 1402 1403 psli = &phba->sli; 1404 1405 /* 1406 * If freeing the queues have already started, don't access them. 1407 * Otherwise set FREE_WAIT to indicate that queues are being used 1408 * to hold the freeing process until we finish. 1409 */ 1410 spin_lock_irq(&phba->hbalock); 1411 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1412 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1413 } else { 1414 spin_unlock_irq(&phba->hbalock); 1415 goto skip_wait; 1416 } 1417 spin_unlock_irq(&phba->hbalock); 1418 1419 /* Wait a little for things to settle down, but not 1420 * long enough for dev loss timeout to expire. 1421 */ 1422 if (phba->sli_rev != LPFC_SLI_REV4) { 1423 for (i = 0; i < psli->num_rings; i++) { 1424 pring = &psli->sli3_ring[i]; 1425 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1426 &phba->hbalock)) 1427 goto out; 1428 } 1429 } else { 1430 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1431 pring = qp->pring; 1432 if (!pring) 1433 continue; 1434 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1435 &pring->ring_lock)) 1436 goto out; 1437 } 1438 } 1439 out: 1440 spin_lock_irq(&phba->hbalock); 1441 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1442 spin_unlock_irq(&phba->hbalock); 1443 1444 skip_wait: 1445 init_completion(&online_compl); 1446 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1447 if (rc == 0) 1448 return -ENOMEM; 1449 1450 wait_for_completion(&online_compl); 1451 1452 if (status != 0) 1453 return -EIO; 1454 1455 return 0; 1456 } 1457 1458 /** 1459 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1460 * @phba: lpfc_hba pointer. 1461 * 1462 * Description: 1463 * Issues a PCI secondary bus reset for the phba->pcidev. 1464 * 1465 * Notes: 1466 * First walks the bus_list to ensure only PCI devices with Emulex 1467 * vendor id, device ids that support hot reset, only one occurrence 1468 * of function 0, and all ports on the bus are in offline mode to ensure the 1469 * hot reset only affects one valid HBA. 1470 * 1471 * Returns: 1472 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1473 * -ENODEV, NULL ptr to pcidev 1474 * -EBADSLT, detected invalid device 1475 * -EBUSY, port is not in offline state 1476 * 0, successful 1477 */ 1478 static int 1479 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1480 { 1481 struct pci_dev *pdev = phba->pcidev; 1482 struct Scsi_Host *shost = NULL; 1483 struct lpfc_hba *phba_other = NULL; 1484 struct pci_dev *ptr = NULL; 1485 int res; 1486 1487 if (phba->cfg_enable_hba_reset != 2) 1488 return -ENOTSUPP; 1489 1490 if (!pdev) { 1491 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1492 return -ENODEV; 1493 } 1494 1495 res = lpfc_check_pci_resettable(phba); 1496 if (res) 1497 return res; 1498 1499 /* Walk the list of devices on the pci_dev's bus */ 1500 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1501 /* Check port is offline */ 1502 shost = pci_get_drvdata(ptr); 1503 if (shost) { 1504 phba_other = 1505 ((struct lpfc_vport *)shost->hostdata)->phba; 1506 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1507 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1508 "8349 WWPN = 0x%02x%02x%02x%02x" 1509 "%02x%02x%02x%02x is not " 1510 "offline!\n", 1511 phba_other->wwpn[0], 1512 phba_other->wwpn[1], 1513 phba_other->wwpn[2], 1514 phba_other->wwpn[3], 1515 phba_other->wwpn[4], 1516 phba_other->wwpn[5], 1517 phba_other->wwpn[6], 1518 phba_other->wwpn[7]); 1519 return -EBUSY; 1520 } 1521 } 1522 } 1523 1524 /* Issue PCI bus reset */ 1525 res = pci_reset_bus(pdev); 1526 if (res) { 1527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1528 "8350 PCI reset bus failed: %d\n", res); 1529 } 1530 1531 return res; 1532 } 1533 1534 /** 1535 * lpfc_selective_reset - Offline then onlines the port 1536 * @phba: lpfc_hba pointer. 1537 * 1538 * Description: 1539 * If the port is configured to allow a reset then the hba is brought 1540 * offline then online. 1541 * 1542 * Notes: 1543 * Assumes any error from lpfc_do_offline() will be negative. 1544 * Do not make this function static. 1545 * 1546 * Returns: 1547 * lpfc_do_offline() return code if not zero 1548 * -EIO reset not configured or error posting the event 1549 * zero for success 1550 **/ 1551 int 1552 lpfc_selective_reset(struct lpfc_hba *phba) 1553 { 1554 struct completion online_compl; 1555 int status = 0; 1556 int rc; 1557 1558 if (!phba->cfg_enable_hba_reset) 1559 return -EACCES; 1560 1561 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1562 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1563 1564 if (status != 0) 1565 return status; 1566 } 1567 1568 init_completion(&online_compl); 1569 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1570 LPFC_EVT_ONLINE); 1571 if (rc == 0) 1572 return -ENOMEM; 1573 1574 wait_for_completion(&online_compl); 1575 1576 if (status != 0) 1577 return -EIO; 1578 1579 return 0; 1580 } 1581 1582 /** 1583 * lpfc_issue_reset - Selectively resets an adapter 1584 * @dev: class device that is converted into a Scsi_host. 1585 * @attr: device attribute, not used. 1586 * @buf: containing the string "selective". 1587 * @count: unused variable. 1588 * 1589 * Description: 1590 * If the buf contains the string "selective" then lpfc_selective_reset() 1591 * is called to perform the reset. 1592 * 1593 * Notes: 1594 * Assumes any error from lpfc_selective_reset() will be negative. 1595 * If lpfc_selective_reset() returns zero then the length of the buffer 1596 * is returned which indicates success 1597 * 1598 * Returns: 1599 * -EINVAL if the buffer does not contain the string "selective" 1600 * length of buf if lpfc-selective_reset() if the call succeeds 1601 * return value of lpfc_selective_reset() if the call fails 1602 **/ 1603 static ssize_t 1604 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1605 const char *buf, size_t count) 1606 { 1607 struct Scsi_Host *shost = class_to_shost(dev); 1608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1609 struct lpfc_hba *phba = vport->phba; 1610 int status = -EINVAL; 1611 1612 if (!phba->cfg_enable_hba_reset) 1613 return -EACCES; 1614 1615 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1616 status = phba->lpfc_selective_reset(phba); 1617 1618 if (status == 0) 1619 return strlen(buf); 1620 else 1621 return status; 1622 } 1623 1624 /** 1625 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1626 * @phba: lpfc_hba pointer. 1627 * 1628 * Description: 1629 * SLI4 interface type-2 device to wait on the sliport status register for 1630 * the readyness after performing a firmware reset. 1631 * 1632 * Returns: 1633 * zero for success, -EPERM when port does not have privilege to perform the 1634 * reset, -EIO when port timeout from recovering from the reset. 1635 * 1636 * Note: 1637 * As the caller will interpret the return code by value, be careful in making 1638 * change or addition to return codes. 1639 **/ 1640 int 1641 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1642 { 1643 struct lpfc_register portstat_reg = {0}; 1644 int i; 1645 1646 msleep(100); 1647 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1648 &portstat_reg.word0)) 1649 return -EIO; 1650 1651 /* verify if privileged for the request operation */ 1652 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1653 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1654 return -EPERM; 1655 1656 /* wait for the SLI port firmware ready after firmware reset */ 1657 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1658 msleep(10); 1659 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1660 &portstat_reg.word0)) 1661 continue; 1662 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1663 continue; 1664 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1665 continue; 1666 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1667 continue; 1668 break; 1669 } 1670 1671 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1672 return 0; 1673 else 1674 return -EIO; 1675 } 1676 1677 /** 1678 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1679 * @phba: lpfc_hba pointer. 1680 * @opcode: The sli4 config command opcode. 1681 * 1682 * Description: 1683 * Request SLI4 interface type-2 device to perform a physical register set 1684 * access. 1685 * 1686 * Returns: 1687 * zero for success 1688 **/ 1689 static ssize_t 1690 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1691 { 1692 struct completion online_compl; 1693 struct pci_dev *pdev = phba->pcidev; 1694 uint32_t before_fc_flag; 1695 uint32_t sriov_nr_virtfn; 1696 uint32_t reg_val; 1697 int status = 0, rc = 0; 1698 int job_posted = 1, sriov_err; 1699 1700 if (!phba->cfg_enable_hba_reset) 1701 return -EACCES; 1702 1703 if ((phba->sli_rev < LPFC_SLI_REV4) || 1704 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1705 LPFC_SLI_INTF_IF_TYPE_2)) 1706 return -EPERM; 1707 1708 /* Keep state if we need to restore back */ 1709 before_fc_flag = phba->pport->fc_flag; 1710 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1711 1712 if (opcode == LPFC_FW_DUMP) { 1713 init_completion(&online_compl); 1714 phba->fw_dump_cmpl = &online_compl; 1715 } else { 1716 /* Disable SR-IOV virtual functions if enabled */ 1717 if (phba->cfg_sriov_nr_virtfn) { 1718 pci_disable_sriov(pdev); 1719 phba->cfg_sriov_nr_virtfn = 0; 1720 } 1721 1722 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1723 1724 if (status != 0) 1725 return status; 1726 1727 /* wait for the device to be quiesced before firmware reset */ 1728 msleep(100); 1729 } 1730 1731 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1732 LPFC_CTL_PDEV_CTL_OFFSET); 1733 1734 if (opcode == LPFC_FW_DUMP) 1735 reg_val |= LPFC_FW_DUMP_REQUEST; 1736 else if (opcode == LPFC_FW_RESET) 1737 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1738 else if (opcode == LPFC_DV_RESET) 1739 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1740 1741 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1742 LPFC_CTL_PDEV_CTL_OFFSET); 1743 /* flush */ 1744 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1745 1746 /* delay driver action following IF_TYPE_2 reset */ 1747 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1748 1749 if (rc == -EPERM) { 1750 /* no privilege for reset */ 1751 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1752 "3150 No privilege to perform the requested " 1753 "access: x%x\n", reg_val); 1754 } else if (rc == -EIO) { 1755 /* reset failed, there is nothing more we can do */ 1756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1757 "3153 Fail to perform the requested " 1758 "access: x%x\n", reg_val); 1759 if (phba->fw_dump_cmpl) 1760 phba->fw_dump_cmpl = NULL; 1761 return rc; 1762 } 1763 1764 /* keep the original port state */ 1765 if (before_fc_flag & FC_OFFLINE_MODE) { 1766 if (phba->fw_dump_cmpl) 1767 phba->fw_dump_cmpl = NULL; 1768 goto out; 1769 } 1770 1771 /* Firmware dump will trigger an HA_ERATT event, and 1772 * lpfc_handle_eratt_s4 routine already handles bringing the port back 1773 * online. 1774 */ 1775 if (opcode == LPFC_FW_DUMP) { 1776 wait_for_completion(phba->fw_dump_cmpl); 1777 } else { 1778 init_completion(&online_compl); 1779 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1780 LPFC_EVT_ONLINE); 1781 if (!job_posted) 1782 goto out; 1783 1784 wait_for_completion(&online_compl); 1785 } 1786 out: 1787 /* in any case, restore the virtual functions enabled as before */ 1788 if (sriov_nr_virtfn) { 1789 /* If fw_dump was performed, first disable to clean up */ 1790 if (opcode == LPFC_FW_DUMP) { 1791 pci_disable_sriov(pdev); 1792 phba->cfg_sriov_nr_virtfn = 0; 1793 } 1794 1795 sriov_err = 1796 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1797 if (!sriov_err) 1798 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1799 } 1800 1801 /* return proper error code */ 1802 if (!rc) { 1803 if (!job_posted) 1804 rc = -ENOMEM; 1805 else if (status) 1806 rc = -EIO; 1807 } 1808 return rc; 1809 } 1810 1811 /** 1812 * lpfc_nport_evt_cnt_show - Return the number of nport events 1813 * @dev: class device that is converted into a Scsi_host. 1814 * @attr: device attribute, not used. 1815 * @buf: on return contains the ascii number of nport events. 1816 * 1817 * Returns: size of formatted string. 1818 **/ 1819 static ssize_t 1820 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1821 char *buf) 1822 { 1823 struct Scsi_Host *shost = class_to_shost(dev); 1824 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1825 struct lpfc_hba *phba = vport->phba; 1826 1827 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1828 } 1829 1830 static int 1831 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1832 { 1833 LPFC_MBOXQ_t *mbox = NULL; 1834 unsigned long val = 0; 1835 char *pval = NULL; 1836 int rc = 0; 1837 1838 if (!strncmp("enable", buff_out, 1839 strlen("enable"))) { 1840 pval = buff_out + strlen("enable") + 1; 1841 rc = kstrtoul(pval, 0, &val); 1842 if (rc) 1843 return rc; /* Invalid number */ 1844 } else if (!strncmp("disable", buff_out, 1845 strlen("disable"))) { 1846 val = 0; 1847 } else { 1848 return -EINVAL; /* Invalid command */ 1849 } 1850 1851 switch (val) { 1852 case 0: 1853 val = 0x0; /* Disable */ 1854 break; 1855 case 2: 1856 val = 0x1; /* Enable two port trunk */ 1857 break; 1858 case 4: 1859 val = 0x2; /* Enable four port trunk */ 1860 break; 1861 default: 1862 return -EINVAL; 1863 } 1864 1865 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1866 "0070 Set trunk mode with val %ld ", val); 1867 1868 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1869 if (!mbox) 1870 return -ENOMEM; 1871 1872 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1873 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1874 12, LPFC_SLI4_MBX_EMBED); 1875 1876 bf_set(lpfc_mbx_set_trunk_mode, 1877 &mbox->u.mqe.un.set_trunk_mode, 1878 val); 1879 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1880 if (rc) 1881 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1882 "0071 Set trunk mode failed with status: %d", 1883 rc); 1884 mempool_free(mbox, phba->mbox_mem_pool); 1885 1886 return 0; 1887 } 1888 1889 /** 1890 * lpfc_board_mode_show - Return the state of the board 1891 * @dev: class device that is converted into a Scsi_host. 1892 * @attr: device attribute, not used. 1893 * @buf: on return contains the state of the adapter. 1894 * 1895 * Returns: size of formatted string. 1896 **/ 1897 static ssize_t 1898 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1899 char *buf) 1900 { 1901 struct Scsi_Host *shost = class_to_shost(dev); 1902 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1903 struct lpfc_hba *phba = vport->phba; 1904 char * state; 1905 1906 if (phba->link_state == LPFC_HBA_ERROR) 1907 state = "error"; 1908 else if (phba->link_state == LPFC_WARM_START) 1909 state = "warm start"; 1910 else if (phba->link_state == LPFC_INIT_START) 1911 state = "offline"; 1912 else 1913 state = "online"; 1914 1915 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1916 } 1917 1918 /** 1919 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1920 * @dev: class device that is converted into a Scsi_host. 1921 * @attr: device attribute, not used. 1922 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1923 * @count: unused variable. 1924 * 1925 * Returns: 1926 * -EACCES if enable hba reset not enabled 1927 * -EINVAL if the buffer does not contain a valid string (see above) 1928 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1929 * buf length greater than zero indicates success 1930 **/ 1931 static ssize_t 1932 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1933 const char *buf, size_t count) 1934 { 1935 struct Scsi_Host *shost = class_to_shost(dev); 1936 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1937 struct lpfc_hba *phba = vport->phba; 1938 struct completion online_compl; 1939 char *board_mode_str = NULL; 1940 int status = 0; 1941 int rc; 1942 1943 if (!phba->cfg_enable_hba_reset) { 1944 status = -EACCES; 1945 goto board_mode_out; 1946 } 1947 1948 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1949 "3050 lpfc_board_mode set to %s\n", buf); 1950 1951 init_completion(&online_compl); 1952 1953 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1954 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1955 LPFC_EVT_ONLINE); 1956 if (rc == 0) { 1957 status = -ENOMEM; 1958 goto board_mode_out; 1959 } 1960 wait_for_completion(&online_compl); 1961 if (status) 1962 status = -EIO; 1963 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1964 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1965 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1966 if (phba->sli_rev == LPFC_SLI_REV4) 1967 status = -EINVAL; 1968 else 1969 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1970 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1971 if (phba->sli_rev == LPFC_SLI_REV4) 1972 status = -EINVAL; 1973 else 1974 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1975 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1976 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1977 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1978 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1979 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1980 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1981 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1982 == 0) 1983 status = lpfc_reset_pci_bus(phba); 1984 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1985 lpfc_issue_hb_tmo(phba); 1986 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1987 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1988 else 1989 status = -EINVAL; 1990 1991 board_mode_out: 1992 if (!status) 1993 return strlen(buf); 1994 else { 1995 board_mode_str = strchr(buf, '\n'); 1996 if (board_mode_str) 1997 *board_mode_str = '\0'; 1998 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1999 "3097 Failed \"%s\", status(%d), " 2000 "fc_flag(x%x)\n", 2001 buf, status, phba->pport->fc_flag); 2002 return status; 2003 } 2004 } 2005 2006 /** 2007 * lpfc_get_hba_info - Return various bits of informaton about the adapter 2008 * @phba: pointer to the adapter structure. 2009 * @mxri: max xri count. 2010 * @axri: available xri count. 2011 * @mrpi: max rpi count. 2012 * @arpi: available rpi count. 2013 * @mvpi: max vpi count. 2014 * @avpi: available vpi count. 2015 * 2016 * Description: 2017 * If an integer pointer for an count is not null then the value for the 2018 * count is returned. 2019 * 2020 * Returns: 2021 * zero on error 2022 * one for success 2023 **/ 2024 static int 2025 lpfc_get_hba_info(struct lpfc_hba *phba, 2026 uint32_t *mxri, uint32_t *axri, 2027 uint32_t *mrpi, uint32_t *arpi, 2028 uint32_t *mvpi, uint32_t *avpi) 2029 { 2030 struct lpfc_mbx_read_config *rd_config; 2031 LPFC_MBOXQ_t *pmboxq; 2032 MAILBOX_t *pmb; 2033 int rc = 0; 2034 uint32_t max_vpi; 2035 2036 /* 2037 * prevent udev from issuing mailbox commands until the port is 2038 * configured. 2039 */ 2040 if (phba->link_state < LPFC_LINK_DOWN || 2041 !phba->mbox_mem_pool || 2042 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2043 return 0; 2044 2045 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2046 return 0; 2047 2048 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2049 if (!pmboxq) 2050 return 0; 2051 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2052 2053 pmb = &pmboxq->u.mb; 2054 pmb->mbxCommand = MBX_READ_CONFIG; 2055 pmb->mbxOwner = OWN_HOST; 2056 pmboxq->ctx_buf = NULL; 2057 2058 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2059 rc = MBX_NOT_FINISHED; 2060 else 2061 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2062 2063 if (rc != MBX_SUCCESS) { 2064 if (rc != MBX_TIMEOUT) 2065 mempool_free(pmboxq, phba->mbox_mem_pool); 2066 return 0; 2067 } 2068 2069 if (phba->sli_rev == LPFC_SLI_REV4) { 2070 rd_config = &pmboxq->u.mqe.un.rd_config; 2071 if (mrpi) 2072 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 2073 if (arpi) 2074 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 2075 phba->sli4_hba.max_cfg_param.rpi_used; 2076 if (mxri) 2077 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 2078 if (axri) 2079 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 2080 phba->sli4_hba.max_cfg_param.xri_used; 2081 2082 /* Account for differences with SLI-3. Get vpi count from 2083 * mailbox data and subtract one for max vpi value. 2084 */ 2085 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 2086 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 2087 2088 /* Limit the max we support */ 2089 if (max_vpi > LPFC_MAX_VPI) 2090 max_vpi = LPFC_MAX_VPI; 2091 if (mvpi) 2092 *mvpi = max_vpi; 2093 if (avpi) 2094 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 2095 } else { 2096 if (mrpi) 2097 *mrpi = pmb->un.varRdConfig.max_rpi; 2098 if (arpi) 2099 *arpi = pmb->un.varRdConfig.avail_rpi; 2100 if (mxri) 2101 *mxri = pmb->un.varRdConfig.max_xri; 2102 if (axri) 2103 *axri = pmb->un.varRdConfig.avail_xri; 2104 if (mvpi) 2105 *mvpi = pmb->un.varRdConfig.max_vpi; 2106 if (avpi) { 2107 /* avail_vpi is only valid if link is up and ready */ 2108 if (phba->link_state == LPFC_HBA_READY) 2109 *avpi = pmb->un.varRdConfig.avail_vpi; 2110 else 2111 *avpi = pmb->un.varRdConfig.max_vpi; 2112 } 2113 } 2114 2115 mempool_free(pmboxq, phba->mbox_mem_pool); 2116 return 1; 2117 } 2118 2119 /** 2120 * lpfc_max_rpi_show - Return maximum rpi 2121 * @dev: class device that is converted into a Scsi_host. 2122 * @attr: device attribute, not used. 2123 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2124 * 2125 * Description: 2126 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2127 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2128 * to "Unknown" and the buffer length is returned, therefore the caller 2129 * must check for "Unknown" in the buffer to detect a failure. 2130 * 2131 * Returns: size of formatted string. 2132 **/ 2133 static ssize_t 2134 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2135 char *buf) 2136 { 2137 struct Scsi_Host *shost = class_to_shost(dev); 2138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2139 struct lpfc_hba *phba = vport->phba; 2140 uint32_t cnt; 2141 2142 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2143 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2144 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2145 } 2146 2147 /** 2148 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2149 * @dev: class device that is converted into a Scsi_host. 2150 * @attr: device attribute, not used. 2151 * @buf: containing the used rpi count in decimal or "Unknown". 2152 * 2153 * Description: 2154 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 2155 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2156 * to "Unknown" and the buffer length is returned, therefore the caller 2157 * must check for "Unknown" in the buffer to detect a failure. 2158 * 2159 * Returns: size of formatted string. 2160 **/ 2161 static ssize_t 2162 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 2163 char *buf) 2164 { 2165 struct Scsi_Host *shost = class_to_shost(dev); 2166 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2167 struct lpfc_hba *phba = vport->phba; 2168 uint32_t cnt, acnt; 2169 2170 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2171 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2172 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2173 } 2174 2175 /** 2176 * lpfc_max_xri_show - Return maximum xri 2177 * @dev: class device that is converted into a Scsi_host. 2178 * @attr: device attribute, not used. 2179 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2180 * 2181 * Description: 2182 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2183 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2184 * to "Unknown" and the buffer length is returned, therefore the caller 2185 * must check for "Unknown" in the buffer to detect a failure. 2186 * 2187 * Returns: size of formatted string. 2188 **/ 2189 static ssize_t 2190 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2191 char *buf) 2192 { 2193 struct Scsi_Host *shost = class_to_shost(dev); 2194 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2195 struct lpfc_hba *phba = vport->phba; 2196 uint32_t cnt; 2197 2198 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2199 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2200 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2201 } 2202 2203 /** 2204 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2205 * @dev: class device that is converted into a Scsi_host. 2206 * @attr: device attribute, not used. 2207 * @buf: on return contains the used xri count in decimal or "Unknown". 2208 * 2209 * Description: 2210 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2211 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2212 * to "Unknown" and the buffer length is returned, therefore the caller 2213 * must check for "Unknown" in the buffer to detect a failure. 2214 * 2215 * Returns: size of formatted string. 2216 **/ 2217 static ssize_t 2218 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2219 char *buf) 2220 { 2221 struct Scsi_Host *shost = class_to_shost(dev); 2222 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2223 struct lpfc_hba *phba = vport->phba; 2224 uint32_t cnt, acnt; 2225 2226 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2227 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2228 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2229 } 2230 2231 /** 2232 * lpfc_max_vpi_show - Return maximum vpi 2233 * @dev: class device that is converted into a Scsi_host. 2234 * @attr: device attribute, not used. 2235 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2236 * 2237 * Description: 2238 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2239 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2240 * to "Unknown" and the buffer length is returned, therefore the caller 2241 * must check for "Unknown" in the buffer to detect a failure. 2242 * 2243 * Returns: size of formatted string. 2244 **/ 2245 static ssize_t 2246 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2247 char *buf) 2248 { 2249 struct Scsi_Host *shost = class_to_shost(dev); 2250 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2251 struct lpfc_hba *phba = vport->phba; 2252 uint32_t cnt; 2253 2254 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2255 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2256 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2257 } 2258 2259 /** 2260 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2261 * @dev: class device that is converted into a Scsi_host. 2262 * @attr: device attribute, not used. 2263 * @buf: on return contains the used vpi count in decimal or "Unknown". 2264 * 2265 * Description: 2266 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2267 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2268 * to "Unknown" and the buffer length is returned, therefore the caller 2269 * must check for "Unknown" in the buffer to detect a failure. 2270 * 2271 * Returns: size of formatted string. 2272 **/ 2273 static ssize_t 2274 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2275 char *buf) 2276 { 2277 struct Scsi_Host *shost = class_to_shost(dev); 2278 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2279 struct lpfc_hba *phba = vport->phba; 2280 uint32_t cnt, acnt; 2281 2282 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2283 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2284 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2285 } 2286 2287 /** 2288 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2289 * @dev: class device that is converted into a Scsi_host. 2290 * @attr: device attribute, not used. 2291 * @buf: text that must be interpreted to determine if npiv is supported. 2292 * 2293 * Description: 2294 * Buffer will contain text indicating npiv is not suppoerted on the port, 2295 * the port is an NPIV physical port, or it is an npiv virtual port with 2296 * the id of the vport. 2297 * 2298 * Returns: size of formatted string. 2299 **/ 2300 static ssize_t 2301 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2302 char *buf) 2303 { 2304 struct Scsi_Host *shost = class_to_shost(dev); 2305 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2306 struct lpfc_hba *phba = vport->phba; 2307 2308 if (!(phba->max_vpi)) 2309 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2310 if (vport->port_type == LPFC_PHYSICAL_PORT) 2311 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2312 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2313 } 2314 2315 /** 2316 * lpfc_poll_show - Return text about poll support for the adapter 2317 * @dev: class device that is converted into a Scsi_host. 2318 * @attr: device attribute, not used. 2319 * @buf: on return contains the cfg_poll in hex. 2320 * 2321 * Notes: 2322 * cfg_poll should be a lpfc_polling_flags type. 2323 * 2324 * Returns: size of formatted string. 2325 **/ 2326 static ssize_t 2327 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2328 char *buf) 2329 { 2330 struct Scsi_Host *shost = class_to_shost(dev); 2331 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2332 struct lpfc_hba *phba = vport->phba; 2333 2334 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2335 } 2336 2337 /** 2338 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2339 * @dev: class device that is converted into a Scsi_host. 2340 * @attr: device attribute, not used. 2341 * @buf: one or more lpfc_polling_flags values. 2342 * @count: not used. 2343 * 2344 * Notes: 2345 * buf contents converted to integer and checked for a valid value. 2346 * 2347 * Returns: 2348 * -EINVAL if the buffer connot be converted or is out of range 2349 * length of the buf on success 2350 **/ 2351 static ssize_t 2352 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2353 const char *buf, size_t count) 2354 { 2355 struct Scsi_Host *shost = class_to_shost(dev); 2356 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2357 struct lpfc_hba *phba = vport->phba; 2358 uint32_t creg_val; 2359 uint32_t old_val; 2360 int val=0; 2361 2362 if (!isdigit(buf[0])) 2363 return -EINVAL; 2364 2365 if (sscanf(buf, "%i", &val) != 1) 2366 return -EINVAL; 2367 2368 if ((val & 0x3) != val) 2369 return -EINVAL; 2370 2371 if (phba->sli_rev == LPFC_SLI_REV4) 2372 val = 0; 2373 2374 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2375 "3051 lpfc_poll changed from %d to %d\n", 2376 phba->cfg_poll, val); 2377 2378 spin_lock_irq(&phba->hbalock); 2379 2380 old_val = phba->cfg_poll; 2381 2382 if (val & ENABLE_FCP_RING_POLLING) { 2383 if ((val & DISABLE_FCP_RING_INT) && 2384 !(old_val & DISABLE_FCP_RING_INT)) { 2385 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2386 spin_unlock_irq(&phba->hbalock); 2387 return -EINVAL; 2388 } 2389 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2390 writel(creg_val, phba->HCregaddr); 2391 readl(phba->HCregaddr); /* flush */ 2392 2393 lpfc_poll_start_timer(phba); 2394 } 2395 } else if (val != 0x0) { 2396 spin_unlock_irq(&phba->hbalock); 2397 return -EINVAL; 2398 } 2399 2400 if (!(val & DISABLE_FCP_RING_INT) && 2401 (old_val & DISABLE_FCP_RING_INT)) 2402 { 2403 spin_unlock_irq(&phba->hbalock); 2404 del_timer(&phba->fcp_poll_timer); 2405 spin_lock_irq(&phba->hbalock); 2406 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2407 spin_unlock_irq(&phba->hbalock); 2408 return -EINVAL; 2409 } 2410 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2411 writel(creg_val, phba->HCregaddr); 2412 readl(phba->HCregaddr); /* flush */ 2413 } 2414 2415 phba->cfg_poll = val; 2416 2417 spin_unlock_irq(&phba->hbalock); 2418 2419 return strlen(buf); 2420 } 2421 2422 /** 2423 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2424 * @dev: class converted to a Scsi_host structure. 2425 * @attr: device attribute, not used. 2426 * @buf: on return contains the formatted support level. 2427 * 2428 * Description: 2429 * Returns the maximum number of virtual functions a physical function can 2430 * support, 0 will be returned if called on virtual function. 2431 * 2432 * Returns: size of formatted string. 2433 **/ 2434 static ssize_t 2435 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2436 struct device_attribute *attr, 2437 char *buf) 2438 { 2439 struct Scsi_Host *shost = class_to_shost(dev); 2440 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2441 struct lpfc_hba *phba = vport->phba; 2442 uint16_t max_nr_virtfn; 2443 2444 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2445 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2446 } 2447 2448 /** 2449 * lpfc_enable_bbcr_set: Sets an attribute value. 2450 * @phba: pointer the the adapter structure. 2451 * @val: integer attribute value. 2452 * 2453 * Description: 2454 * Validates the min and max values then sets the 2455 * adapter config field if in the valid range. prints error message 2456 * and does not set the parameter if invalid. 2457 * 2458 * Returns: 2459 * zero on success 2460 * -EINVAL if val is invalid 2461 */ 2462 static ssize_t 2463 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2464 { 2465 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2467 "3068 lpfc_enable_bbcr changed from %d to " 2468 "%d\n", phba->cfg_enable_bbcr, val); 2469 phba->cfg_enable_bbcr = val; 2470 return 0; 2471 } 2472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2473 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2474 "1\n", val); 2475 return -EINVAL; 2476 } 2477 2478 /* 2479 * lpfc_param_show - Return a cfg attribute value in decimal 2480 * 2481 * Description: 2482 * Macro that given an attr e.g. hba_queue_depth expands 2483 * into a function with the name lpfc_hba_queue_depth_show. 2484 * 2485 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2486 * @dev: class device that is converted into a Scsi_host. 2487 * @attr: device attribute, not used. 2488 * @buf: on return contains the attribute value in decimal. 2489 * 2490 * Returns: size of formatted string. 2491 **/ 2492 #define lpfc_param_show(attr) \ 2493 static ssize_t \ 2494 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2495 char *buf) \ 2496 { \ 2497 struct Scsi_Host *shost = class_to_shost(dev);\ 2498 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2499 struct lpfc_hba *phba = vport->phba;\ 2500 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2501 phba->cfg_##attr);\ 2502 } 2503 2504 /* 2505 * lpfc_param_hex_show - Return a cfg attribute value in hex 2506 * 2507 * Description: 2508 * Macro that given an attr e.g. hba_queue_depth expands 2509 * into a function with the name lpfc_hba_queue_depth_show 2510 * 2511 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2512 * @dev: class device that is converted into a Scsi_host. 2513 * @attr: device attribute, not used. 2514 * @buf: on return contains the attribute value in hexadecimal. 2515 * 2516 * Returns: size of formatted string. 2517 **/ 2518 #define lpfc_param_hex_show(attr) \ 2519 static ssize_t \ 2520 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2521 char *buf) \ 2522 { \ 2523 struct Scsi_Host *shost = class_to_shost(dev);\ 2524 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2525 struct lpfc_hba *phba = vport->phba;\ 2526 uint val = 0;\ 2527 val = phba->cfg_##attr;\ 2528 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2529 phba->cfg_##attr);\ 2530 } 2531 2532 /* 2533 * lpfc_param_init - Initializes a cfg attribute 2534 * 2535 * Description: 2536 * Macro that given an attr e.g. hba_queue_depth expands 2537 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2538 * takes a default argument, a minimum and maximum argument. 2539 * 2540 * lpfc_##attr##_init: Initializes an attribute. 2541 * @phba: pointer the the adapter structure. 2542 * @val: integer attribute value. 2543 * 2544 * Validates the min and max values then sets the adapter config field 2545 * accordingly, or uses the default if out of range and prints an error message. 2546 * 2547 * Returns: 2548 * zero on success 2549 * -EINVAL if default used 2550 **/ 2551 #define lpfc_param_init(attr, default, minval, maxval) \ 2552 static int \ 2553 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2554 { \ 2555 if (lpfc_rangecheck(val, minval, maxval)) {\ 2556 phba->cfg_##attr = val;\ 2557 return 0;\ 2558 }\ 2559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2560 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2561 "allowed range is ["#minval", "#maxval"]\n", val); \ 2562 phba->cfg_##attr = default;\ 2563 return -EINVAL;\ 2564 } 2565 2566 /* 2567 * lpfc_param_set - Set a cfg attribute value 2568 * 2569 * Description: 2570 * Macro that given an attr e.g. hba_queue_depth expands 2571 * into a function with the name lpfc_hba_queue_depth_set 2572 * 2573 * lpfc_##attr##_set: Sets an attribute value. 2574 * @phba: pointer the the adapter structure. 2575 * @val: integer attribute value. 2576 * 2577 * Description: 2578 * Validates the min and max values then sets the 2579 * adapter config field if in the valid range. prints error message 2580 * and does not set the parameter if invalid. 2581 * 2582 * Returns: 2583 * zero on success 2584 * -EINVAL if val is invalid 2585 **/ 2586 #define lpfc_param_set(attr, default, minval, maxval) \ 2587 static int \ 2588 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2589 { \ 2590 if (lpfc_rangecheck(val, minval, maxval)) {\ 2591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2592 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2593 phba->cfg_##attr, val); \ 2594 phba->cfg_##attr = val;\ 2595 return 0;\ 2596 }\ 2597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2598 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2599 "allowed range is ["#minval", "#maxval"]\n", val); \ 2600 return -EINVAL;\ 2601 } 2602 2603 /* 2604 * lpfc_param_store - Set a vport attribute value 2605 * 2606 * Description: 2607 * Macro that given an attr e.g. hba_queue_depth expands 2608 * into a function with the name lpfc_hba_queue_depth_store. 2609 * 2610 * lpfc_##attr##_store: Set an sttribute value. 2611 * @dev: class device that is converted into a Scsi_host. 2612 * @attr: device attribute, not used. 2613 * @buf: contains the attribute value in ascii. 2614 * @count: not used. 2615 * 2616 * Description: 2617 * Convert the ascii text number to an integer, then 2618 * use the lpfc_##attr##_set function to set the value. 2619 * 2620 * Returns: 2621 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2622 * length of buffer upon success. 2623 **/ 2624 #define lpfc_param_store(attr) \ 2625 static ssize_t \ 2626 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2627 const char *buf, size_t count) \ 2628 { \ 2629 struct Scsi_Host *shost = class_to_shost(dev);\ 2630 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2631 struct lpfc_hba *phba = vport->phba;\ 2632 uint val = 0;\ 2633 if (!isdigit(buf[0]))\ 2634 return -EINVAL;\ 2635 if (sscanf(buf, "%i", &val) != 1)\ 2636 return -EINVAL;\ 2637 if (lpfc_##attr##_set(phba, val) == 0) \ 2638 return strlen(buf);\ 2639 else \ 2640 return -EINVAL;\ 2641 } 2642 2643 /* 2644 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2645 * 2646 * Description: 2647 * Macro that given an attr e.g. hba_queue_depth expands 2648 * into a function with the name lpfc_hba_queue_depth_show 2649 * 2650 * lpfc_##attr##_show: prints the attribute value in decimal. 2651 * @dev: class device that is converted into a Scsi_host. 2652 * @attr: device attribute, not used. 2653 * @buf: on return contains the attribute value in decimal. 2654 * 2655 * Returns: length of formatted string. 2656 **/ 2657 #define lpfc_vport_param_show(attr) \ 2658 static ssize_t \ 2659 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2660 char *buf) \ 2661 { \ 2662 struct Scsi_Host *shost = class_to_shost(dev);\ 2663 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2664 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2665 } 2666 2667 /* 2668 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2669 * 2670 * Description: 2671 * Macro that given an attr e.g. 2672 * hba_queue_depth expands into a function with the name 2673 * lpfc_hba_queue_depth_show 2674 * 2675 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2676 * @dev: class device that is converted into a Scsi_host. 2677 * @attr: device attribute, not used. 2678 * @buf: on return contains the attribute value in hexadecimal. 2679 * 2680 * Returns: length of formatted string. 2681 **/ 2682 #define lpfc_vport_param_hex_show(attr) \ 2683 static ssize_t \ 2684 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2685 char *buf) \ 2686 { \ 2687 struct Scsi_Host *shost = class_to_shost(dev);\ 2688 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2689 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2690 } 2691 2692 /* 2693 * lpfc_vport_param_init - Initialize a vport cfg attribute 2694 * 2695 * Description: 2696 * Macro that given an attr e.g. hba_queue_depth expands 2697 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2698 * takes a default argument, a minimum and maximum argument. 2699 * 2700 * lpfc_##attr##_init: validates the min and max values then sets the 2701 * adapter config field accordingly, or uses the default if out of range 2702 * and prints an error message. 2703 * @phba: pointer the the adapter structure. 2704 * @val: integer attribute value. 2705 * 2706 * Returns: 2707 * zero on success 2708 * -EINVAL if default used 2709 **/ 2710 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2711 static int \ 2712 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2713 { \ 2714 if (lpfc_rangecheck(val, minval, maxval)) {\ 2715 vport->cfg_##attr = val;\ 2716 return 0;\ 2717 }\ 2718 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2719 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2720 "allowed range is ["#minval", "#maxval"]\n", val); \ 2721 vport->cfg_##attr = default;\ 2722 return -EINVAL;\ 2723 } 2724 2725 /* 2726 * lpfc_vport_param_set - Set a vport cfg attribute 2727 * 2728 * Description: 2729 * Macro that given an attr e.g. hba_queue_depth expands 2730 * into a function with the name lpfc_hba_queue_depth_set 2731 * 2732 * lpfc_##attr##_set: validates the min and max values then sets the 2733 * adapter config field if in the valid range. prints error message 2734 * and does not set the parameter if invalid. 2735 * @phba: pointer the the adapter structure. 2736 * @val: integer attribute value. 2737 * 2738 * Returns: 2739 * zero on success 2740 * -EINVAL if val is invalid 2741 **/ 2742 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2743 static int \ 2744 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2745 { \ 2746 if (lpfc_rangecheck(val, minval, maxval)) {\ 2747 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2748 "3053 lpfc_" #attr \ 2749 " changed from %d (x%x) to %d (x%x)\n", \ 2750 vport->cfg_##attr, vport->cfg_##attr, \ 2751 val, val); \ 2752 vport->cfg_##attr = val;\ 2753 return 0;\ 2754 }\ 2755 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2756 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2757 "allowed range is ["#minval", "#maxval"]\n", val); \ 2758 return -EINVAL;\ 2759 } 2760 2761 /* 2762 * lpfc_vport_param_store - Set a vport attribute 2763 * 2764 * Description: 2765 * Macro that given an attr e.g. hba_queue_depth 2766 * expands into a function with the name lpfc_hba_queue_depth_store 2767 * 2768 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2769 * use the lpfc_##attr##_set function to set the value. 2770 * @cdev: class device that is converted into a Scsi_host. 2771 * @buf: contains the attribute value in decimal. 2772 * @count: not used. 2773 * 2774 * Returns: 2775 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2776 * length of buffer upon success. 2777 **/ 2778 #define lpfc_vport_param_store(attr) \ 2779 static ssize_t \ 2780 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2781 const char *buf, size_t count) \ 2782 { \ 2783 struct Scsi_Host *shost = class_to_shost(dev);\ 2784 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2785 uint val = 0;\ 2786 if (!isdigit(buf[0]))\ 2787 return -EINVAL;\ 2788 if (sscanf(buf, "%i", &val) != 1)\ 2789 return -EINVAL;\ 2790 if (lpfc_##attr##_set(vport, val) == 0) \ 2791 return strlen(buf);\ 2792 else \ 2793 return -EINVAL;\ 2794 } 2795 2796 2797 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2798 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2799 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2800 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2801 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2802 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2803 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2804 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2805 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2806 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2807 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2808 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2809 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2810 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2811 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2812 lpfc_link_state_store); 2813 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2814 lpfc_option_rom_version_show, NULL); 2815 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2816 lpfc_num_discovered_ports_show, NULL); 2817 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2818 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2819 static DEVICE_ATTR_RO(lpfc_drvr_version); 2820 static DEVICE_ATTR_RO(lpfc_enable_fip); 2821 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2822 lpfc_board_mode_show, lpfc_board_mode_store); 2823 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2824 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2825 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2826 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2827 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2828 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2829 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2830 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2831 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2832 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2833 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2834 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2835 NULL); 2836 static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 2837 2838 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2839 #define WWN_SZ 8 2840 /** 2841 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2842 * @buf: WWN string. 2843 * @cnt: Length of string. 2844 * @wwn: Array to receive converted wwn value. 2845 * 2846 * Returns: 2847 * -EINVAL if the buffer does not contain a valid wwn 2848 * 0 success 2849 **/ 2850 static size_t 2851 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2852 { 2853 unsigned int i, j; 2854 2855 /* Count may include a LF at end of string */ 2856 if (buf[cnt-1] == '\n') 2857 cnt--; 2858 2859 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2860 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2861 return -EINVAL; 2862 2863 memset(wwn, 0, WWN_SZ); 2864 2865 /* Validate and store the new name */ 2866 for (i = 0, j = 0; i < 16; i++) { 2867 if ((*buf >= 'a') && (*buf <= 'f')) 2868 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2869 else if ((*buf >= 'A') && (*buf <= 'F')) 2870 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2871 else if ((*buf >= '0') && (*buf <= '9')) 2872 j = ((j << 4) | (*buf++ - '0')); 2873 else 2874 return -EINVAL; 2875 if (i % 2) { 2876 wwn[i/2] = j & 0xff; 2877 j = 0; 2878 } 2879 } 2880 return 0; 2881 } 2882 /** 2883 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2884 * @dev: class device that is converted into a Scsi_host. 2885 * @attr: device attribute, not used. 2886 * @buf: containing the string lpfc_soft_wwn_key. 2887 * @count: must be size of lpfc_soft_wwn_key. 2888 * 2889 * Returns: 2890 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2891 * length of buf indicates success 2892 **/ 2893 static ssize_t 2894 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2895 const char *buf, size_t count) 2896 { 2897 struct Scsi_Host *shost = class_to_shost(dev); 2898 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2899 struct lpfc_hba *phba = vport->phba; 2900 unsigned int cnt = count; 2901 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2902 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2903 2904 /* 2905 * We're doing a simple sanity check for soft_wwpn setting. 2906 * We require that the user write a specific key to enable 2907 * the soft_wwpn attribute to be settable. Once the attribute 2908 * is written, the enable key resets. If further updates are 2909 * desired, the key must be written again to re-enable the 2910 * attribute. 2911 * 2912 * The "key" is not secret - it is a hardcoded string shown 2913 * here. The intent is to protect against the random user or 2914 * application that is just writing attributes. 2915 */ 2916 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2918 "0051 lpfc soft wwpn can not be enabled: " 2919 "fawwpn is enabled\n"); 2920 return -EINVAL; 2921 } 2922 2923 /* count may include a LF at end of string */ 2924 if (buf[cnt-1] == '\n') 2925 cnt--; 2926 2927 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2928 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2929 return -EINVAL; 2930 2931 phba->soft_wwn_enable = 1; 2932 2933 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2934 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2935 phba->brd_no); 2936 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2937 " The soft_wwpn feature is not supported by Broadcom."); 2938 2939 return count; 2940 } 2941 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2942 2943 /** 2944 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2945 * @dev: class device that is converted into a Scsi_host. 2946 * @attr: device attribute, not used. 2947 * @buf: on return contains the wwpn in hexadecimal. 2948 * 2949 * Returns: size of formatted string. 2950 **/ 2951 static ssize_t 2952 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2953 char *buf) 2954 { 2955 struct Scsi_Host *shost = class_to_shost(dev); 2956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2957 struct lpfc_hba *phba = vport->phba; 2958 2959 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2960 (unsigned long long)phba->cfg_soft_wwpn); 2961 } 2962 2963 /** 2964 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2965 * @dev: class device that is converted into a Scsi_host. 2966 * @attr: device attribute, not used. 2967 * @buf: contains the wwpn in hexadecimal. 2968 * @count: number of wwpn bytes in buf 2969 * 2970 * Returns: 2971 * -EACCES hba reset not enabled, adapter over temp 2972 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2973 * -EIO error taking adapter offline or online 2974 * value of count on success 2975 **/ 2976 static ssize_t 2977 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2978 const char *buf, size_t count) 2979 { 2980 struct Scsi_Host *shost = class_to_shost(dev); 2981 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2982 struct lpfc_hba *phba = vport->phba; 2983 struct completion online_compl; 2984 int stat1 = 0, stat2 = 0; 2985 unsigned int cnt = count; 2986 u8 wwpn[WWN_SZ]; 2987 int rc; 2988 2989 if (!phba->cfg_enable_hba_reset) 2990 return -EACCES; 2991 spin_lock_irq(&phba->hbalock); 2992 if (phba->over_temp_state == HBA_OVER_TEMP) { 2993 spin_unlock_irq(&phba->hbalock); 2994 return -EACCES; 2995 } 2996 spin_unlock_irq(&phba->hbalock); 2997 /* count may include a LF at end of string */ 2998 if (buf[cnt-1] == '\n') 2999 cnt--; 3000 3001 if (!phba->soft_wwn_enable) 3002 return -EINVAL; 3003 3004 /* lock setting wwpn, wwnn down */ 3005 phba->soft_wwn_enable = 0; 3006 3007 rc = lpfc_wwn_set(buf, cnt, wwpn); 3008 if (rc) { 3009 /* not able to set wwpn, unlock it */ 3010 phba->soft_wwn_enable = 1; 3011 return rc; 3012 } 3013 3014 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 3015 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 3016 if (phba->cfg_soft_wwnn) 3017 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 3018 3019 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 3020 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 3021 3022 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 3023 if (stat1) 3024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3025 "0463 lpfc_soft_wwpn attribute set failed to " 3026 "reinit adapter - %d\n", stat1); 3027 init_completion(&online_compl); 3028 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 3029 LPFC_EVT_ONLINE); 3030 if (rc == 0) 3031 return -ENOMEM; 3032 3033 wait_for_completion(&online_compl); 3034 if (stat2) 3035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3036 "0464 lpfc_soft_wwpn attribute set failed to " 3037 "reinit adapter - %d\n", stat2); 3038 return (stat1 || stat2) ? -EIO : count; 3039 } 3040 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 3041 3042 /** 3043 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 3044 * @dev: class device that is converted into a Scsi_host. 3045 * @attr: device attribute, not used. 3046 * @buf: on return contains the wwnn in hexadecimal. 3047 * 3048 * Returns: size of formatted string. 3049 **/ 3050 static ssize_t 3051 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 3052 char *buf) 3053 { 3054 struct Scsi_Host *shost = class_to_shost(dev); 3055 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3056 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3057 (unsigned long long)phba->cfg_soft_wwnn); 3058 } 3059 3060 /** 3061 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 3062 * @dev: class device that is converted into a Scsi_host. 3063 * @attr: device attribute, not used. 3064 * @buf: contains the ww node name in hexadecimal. 3065 * @count: number of wwnn bytes in buf. 3066 * 3067 * Returns: 3068 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 3069 * value of count on success 3070 **/ 3071 static ssize_t 3072 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 3073 const char *buf, size_t count) 3074 { 3075 struct Scsi_Host *shost = class_to_shost(dev); 3076 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3077 unsigned int cnt = count; 3078 u8 wwnn[WWN_SZ]; 3079 int rc; 3080 3081 /* count may include a LF at end of string */ 3082 if (buf[cnt-1] == '\n') 3083 cnt--; 3084 3085 if (!phba->soft_wwn_enable) 3086 return -EINVAL; 3087 3088 rc = lpfc_wwn_set(buf, cnt, wwnn); 3089 if (rc) { 3090 /* Allow wwnn to be set many times, as long as the enable 3091 * is set. However, once the wwpn is set, everything locks. 3092 */ 3093 return rc; 3094 } 3095 3096 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 3097 3098 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 3099 "lpfc%d: soft_wwnn set. Value will take effect upon " 3100 "setting of the soft_wwpn\n", phba->brd_no); 3101 3102 return count; 3103 } 3104 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 3105 3106 /** 3107 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 3108 * Optimized Access Storage (OAS) operations. 3109 * @dev: class device that is converted into a Scsi_host. 3110 * @attr: device attribute, not used. 3111 * @buf: buffer for passing information. 3112 * 3113 * Returns: 3114 * value of count 3115 **/ 3116 static ssize_t 3117 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 3118 char *buf) 3119 { 3120 struct Scsi_Host *shost = class_to_shost(dev); 3121 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3122 3123 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3124 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3125 } 3126 3127 /** 3128 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3129 * Optimized Access Storage (OAS) operations. 3130 * @dev: class device that is converted into a Scsi_host. 3131 * @attr: device attribute, not used. 3132 * @buf: buffer for passing information. 3133 * @count: Size of the data buffer. 3134 * 3135 * Returns: 3136 * -EINVAL count is invalid, invalid wwpn byte invalid 3137 * -EPERM oas is not supported by hba 3138 * value of count on success 3139 **/ 3140 static ssize_t 3141 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3142 const char *buf, size_t count) 3143 { 3144 struct Scsi_Host *shost = class_to_shost(dev); 3145 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3146 unsigned int cnt = count; 3147 uint8_t wwpn[WWN_SZ]; 3148 int rc; 3149 3150 if (!phba->cfg_fof) 3151 return -EPERM; 3152 3153 /* count may include a LF at end of string */ 3154 if (buf[cnt-1] == '\n') 3155 cnt--; 3156 3157 rc = lpfc_wwn_set(buf, cnt, wwpn); 3158 if (rc) 3159 return rc; 3160 3161 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3162 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3163 if (wwn_to_u64(wwpn) == 0) 3164 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3165 else 3166 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3167 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3168 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3169 return count; 3170 } 3171 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3172 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3173 3174 /** 3175 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3176 * Optimized Access Storage (OAS) operations. 3177 * @dev: class device that is converted into a Scsi_host. 3178 * @attr: device attribute, not used. 3179 * @buf: buffer for passing information. 3180 * 3181 * Returns: 3182 * value of count 3183 **/ 3184 static ssize_t 3185 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3186 char *buf) 3187 { 3188 struct Scsi_Host *shost = class_to_shost(dev); 3189 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3190 3191 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3192 } 3193 3194 /** 3195 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3196 * Optimized Access Storage (OAS) operations. 3197 * @dev: class device that is converted into a Scsi_host. 3198 * @attr: device attribute, not used. 3199 * @buf: buffer for passing information. 3200 * @count: Size of the data buffer. 3201 * 3202 * Returns: 3203 * -EINVAL count is invalid, invalid wwpn byte invalid 3204 * -EPERM oas is not supported by hba 3205 * value of count on success 3206 **/ 3207 static ssize_t 3208 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3209 const char *buf, size_t count) 3210 { 3211 struct Scsi_Host *shost = class_to_shost(dev); 3212 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3213 unsigned int cnt = count; 3214 unsigned long val; 3215 int ret; 3216 3217 if (!phba->cfg_fof) 3218 return -EPERM; 3219 3220 /* count may include a LF at end of string */ 3221 if (buf[cnt-1] == '\n') 3222 cnt--; 3223 3224 ret = kstrtoul(buf, 0, &val); 3225 if (ret || (val > 0x7f)) 3226 return -EINVAL; 3227 3228 if (val) 3229 phba->cfg_oas_priority = (uint8_t)val; 3230 else 3231 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3232 return count; 3233 } 3234 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3235 lpfc_oas_priority_show, lpfc_oas_priority_store); 3236 3237 /** 3238 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3239 * for Optimized Access Storage (OAS) operations. 3240 * @dev: class device that is converted into a Scsi_host. 3241 * @attr: device attribute, not used. 3242 * @buf: buffer for passing information. 3243 * 3244 * Returns: 3245 * value of count on success 3246 **/ 3247 static ssize_t 3248 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3249 char *buf) 3250 { 3251 struct Scsi_Host *shost = class_to_shost(dev); 3252 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3253 3254 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3255 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3256 } 3257 3258 /** 3259 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3260 * for Optimized Access Storage (OAS) operations. 3261 * @dev: class device that is converted into a Scsi_host. 3262 * @attr: device attribute, not used. 3263 * @buf: buffer for passing information. 3264 * @count: Size of the data buffer. 3265 * 3266 * Returns: 3267 * -EINVAL count is invalid, invalid wwpn byte invalid 3268 * -EPERM oas is not supported by hba 3269 * value of count on success 3270 **/ 3271 static ssize_t 3272 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3273 const char *buf, size_t count) 3274 { 3275 struct Scsi_Host *shost = class_to_shost(dev); 3276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3277 unsigned int cnt = count; 3278 uint8_t wwpn[WWN_SZ]; 3279 int rc; 3280 3281 if (!phba->cfg_fof) 3282 return -EPERM; 3283 3284 /* count may include a LF at end of string */ 3285 if (buf[cnt-1] == '\n') 3286 cnt--; 3287 3288 rc = lpfc_wwn_set(buf, cnt, wwpn); 3289 if (rc) 3290 return rc; 3291 3292 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3293 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3294 if (wwn_to_u64(wwpn) == 0) 3295 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3296 else 3297 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3298 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3299 if (phba->cfg_oas_priority == 0) 3300 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3301 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3302 return count; 3303 } 3304 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3305 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3306 3307 /** 3308 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3309 * of whether luns will be enabled or disabled 3310 * for Optimized Access Storage (OAS) operations. 3311 * @dev: class device that is converted into a Scsi_host. 3312 * @attr: device attribute, not used. 3313 * @buf: buffer for passing information. 3314 * 3315 * Returns: 3316 * size of formatted string. 3317 **/ 3318 static ssize_t 3319 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3320 char *buf) 3321 { 3322 struct Scsi_Host *shost = class_to_shost(dev); 3323 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3324 3325 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3326 } 3327 3328 /** 3329 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3330 * of whether luns will be enabled or disabled 3331 * for Optimized Access Storage (OAS) operations. 3332 * @dev: class device that is converted into a Scsi_host. 3333 * @attr: device attribute, not used. 3334 * @buf: buffer for passing information. 3335 * @count: Size of the data buffer. 3336 * 3337 * Returns: 3338 * -EINVAL count is invalid, invalid wwpn byte invalid 3339 * -EPERM oas is not supported by hba 3340 * value of count on success 3341 **/ 3342 static ssize_t 3343 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3344 const char *buf, size_t count) 3345 { 3346 struct Scsi_Host *shost = class_to_shost(dev); 3347 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3348 int val = 0; 3349 3350 if (!phba->cfg_fof) 3351 return -EPERM; 3352 3353 if (!isdigit(buf[0])) 3354 return -EINVAL; 3355 3356 if (sscanf(buf, "%i", &val) != 1) 3357 return -EINVAL; 3358 3359 if ((val != 0) && (val != 1)) 3360 return -EINVAL; 3361 3362 phba->cfg_oas_lun_state = val; 3363 return strlen(buf); 3364 } 3365 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3366 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3367 3368 /** 3369 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3370 * Storage (OAS) lun returned by the 3371 * lpfc_oas_lun_show function. 3372 * @dev: class device that is converted into a Scsi_host. 3373 * @attr: device attribute, not used. 3374 * @buf: buffer for passing information. 3375 * 3376 * Returns: 3377 * size of formatted string. 3378 **/ 3379 static ssize_t 3380 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3381 char *buf) 3382 { 3383 struct Scsi_Host *shost = class_to_shost(dev); 3384 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3385 3386 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3387 return -EFAULT; 3388 3389 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3390 } 3391 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3392 lpfc_oas_lun_status_show, NULL); 3393 3394 3395 /** 3396 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3397 * (OAS) operations. 3398 * @phba: lpfc_hba pointer. 3399 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3400 * @tgt_wwpn: wwpn of the target associated with the returned lun 3401 * @lun: the fc lun for setting oas state. 3402 * @oas_state: the oas state to be set to the lun. 3403 * @pri: priority 3404 * 3405 * Returns: 3406 * SUCCESS : 0 3407 * -EPERM OAS is not enabled or not supported by this port. 3408 * 3409 */ 3410 static size_t 3411 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3412 uint8_t tgt_wwpn[], uint64_t lun, 3413 uint32_t oas_state, uint8_t pri) 3414 { 3415 3416 int rc = 0; 3417 3418 if (!phba->cfg_fof) 3419 return -EPERM; 3420 3421 if (oas_state) { 3422 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3423 (struct lpfc_name *)tgt_wwpn, 3424 lun, pri)) 3425 rc = -ENOMEM; 3426 } else { 3427 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3428 (struct lpfc_name *)tgt_wwpn, lun, pri); 3429 } 3430 return rc; 3431 3432 } 3433 3434 /** 3435 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3436 * Access Storage (OAS) operations. 3437 * @phba: lpfc_hba pointer. 3438 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3439 * @tgt_wwpn: wwpn of the target associated with the returned lun 3440 * @lun_status: status of the lun returned lun 3441 * @lun_pri: priority of the lun returned lun 3442 * 3443 * Returns the first or next lun enabled for OAS operations for the vport/target 3444 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3445 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3446 * 3447 * Return: 3448 * lun that is OAS enabled for the vport/target 3449 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3450 */ 3451 static uint64_t 3452 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3453 uint8_t tgt_wwpn[], uint32_t *lun_status, 3454 uint32_t *lun_pri) 3455 { 3456 uint64_t found_lun; 3457 3458 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3459 return NOT_OAS_ENABLED_LUN; 3460 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3461 phba->sli4_hba.oas_next_vpt_wwpn, 3462 (struct lpfc_name *) 3463 phba->sli4_hba.oas_next_tgt_wwpn, 3464 &phba->sli4_hba.oas_next_lun, 3465 (struct lpfc_name *)vpt_wwpn, 3466 (struct lpfc_name *)tgt_wwpn, 3467 &found_lun, lun_status, lun_pri)) 3468 return found_lun; 3469 else 3470 return NOT_OAS_ENABLED_LUN; 3471 } 3472 3473 /** 3474 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3475 * @phba: lpfc_hba pointer. 3476 * @vpt_wwpn: vport wwpn by reference. 3477 * @tgt_wwpn: target wwpn by reference. 3478 * @lun: the fc lun for setting oas state. 3479 * @oas_state: the oas state to be set to the oas_lun. 3480 * @pri: priority 3481 * 3482 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3483 * a lun for OAS operations. 3484 * 3485 * Return: 3486 * SUCCESS: 0 3487 * -ENOMEM: failed to enable an lun for OAS operations 3488 * -EPERM: OAS is not enabled 3489 */ 3490 static ssize_t 3491 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3492 uint8_t tgt_wwpn[], uint64_t lun, 3493 uint32_t oas_state, uint8_t pri) 3494 { 3495 3496 int rc; 3497 3498 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3499 oas_state, pri); 3500 return rc; 3501 } 3502 3503 /** 3504 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3505 * @dev: class device that is converted into a Scsi_host. 3506 * @attr: device attribute, not used. 3507 * @buf: buffer for passing information. 3508 * 3509 * This routine returns a lun enabled for OAS each time the function 3510 * is called. 3511 * 3512 * Returns: 3513 * SUCCESS: size of formatted string. 3514 * -EFAULT: target or vport wwpn was not set properly. 3515 * -EPERM: oas is not enabled. 3516 **/ 3517 static ssize_t 3518 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3519 char *buf) 3520 { 3521 struct Scsi_Host *shost = class_to_shost(dev); 3522 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3523 3524 uint64_t oas_lun; 3525 int len = 0; 3526 3527 if (!phba->cfg_fof) 3528 return -EPERM; 3529 3530 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3531 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3532 return -EFAULT; 3533 3534 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3535 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3536 return -EFAULT; 3537 3538 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3539 phba->cfg_oas_tgt_wwpn, 3540 &phba->cfg_oas_lun_status, 3541 &phba->cfg_oas_priority); 3542 if (oas_lun != NOT_OAS_ENABLED_LUN) 3543 phba->cfg_oas_flags |= OAS_LUN_VALID; 3544 3545 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3546 3547 return len; 3548 } 3549 3550 /** 3551 * lpfc_oas_lun_store - Sets the OAS state for lun 3552 * @dev: class device that is converted into a Scsi_host. 3553 * @attr: device attribute, not used. 3554 * @buf: buffer for passing information. 3555 * @count: size of the formatting string 3556 * 3557 * This function sets the OAS state for lun. Before this function is called, 3558 * the vport wwpn, target wwpn, and oas state need to be set. 3559 * 3560 * Returns: 3561 * SUCCESS: size of formatted string. 3562 * -EFAULT: target or vport wwpn was not set properly. 3563 * -EPERM: oas is not enabled. 3564 * size of formatted string. 3565 **/ 3566 static ssize_t 3567 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3568 const char *buf, size_t count) 3569 { 3570 struct Scsi_Host *shost = class_to_shost(dev); 3571 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3572 uint64_t scsi_lun; 3573 uint32_t pri; 3574 ssize_t rc; 3575 3576 if (!phba->cfg_fof) 3577 return -EPERM; 3578 3579 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3580 return -EFAULT; 3581 3582 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3583 return -EFAULT; 3584 3585 if (!isdigit(buf[0])) 3586 return -EINVAL; 3587 3588 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3589 return -EINVAL; 3590 3591 pri = phba->cfg_oas_priority; 3592 if (pri == 0) 3593 pri = phba->cfg_XLanePriority; 3594 3595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3596 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3597 "priority 0x%x with oas state %d\n", 3598 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3599 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3600 pri, phba->cfg_oas_lun_state); 3601 3602 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3603 phba->cfg_oas_tgt_wwpn, scsi_lun, 3604 phba->cfg_oas_lun_state, pri); 3605 if (rc) 3606 return rc; 3607 3608 return count; 3609 } 3610 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3611 lpfc_oas_lun_show, lpfc_oas_lun_store); 3612 3613 int lpfc_enable_nvmet_cnt; 3614 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3615 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3616 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3617 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3618 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3619 3620 static int lpfc_poll = 0; 3621 module_param(lpfc_poll, int, S_IRUGO); 3622 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3623 " 0 - none," 3624 " 1 - poll with interrupts enabled" 3625 " 3 - poll and disable FCP ring interrupts"); 3626 3627 static DEVICE_ATTR_RW(lpfc_poll); 3628 3629 int lpfc_no_hba_reset_cnt; 3630 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3631 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3632 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3633 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3634 3635 LPFC_ATTR(sli_mode, 3, 3, 3, 3636 "SLI mode selector: 3 - select SLI-3"); 3637 3638 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3639 "Enable NPIV functionality"); 3640 3641 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3642 "FCF Fast failover=1 Priority failover=2"); 3643 3644 /* 3645 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3646 * aborted IO. 3647 * The range is [0,1]. Default value is 0 3648 * 0, IO completes after ABTS issued (default). 3649 * 1, IO completes after receipt of ABTS response or timeout. 3650 */ 3651 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3652 3653 /* 3654 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3655 # 0x0 = disabled, XRI/OXID use not tracked. 3656 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3657 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3658 */ 3659 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3660 "Enable RRQ functionality"); 3661 3662 /* 3663 # lpfc_suppress_link_up: Bring link up at initialization 3664 # 0x0 = bring link up (issue MBX_INIT_LINK) 3665 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3666 # 0x2 = never bring up link 3667 # Default value is 0. 3668 */ 3669 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3670 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3671 "Suppress Link Up at initialization"); 3672 3673 static ssize_t 3674 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3675 { 3676 struct Scsi_Host *shost = class_to_shost(dev); 3677 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3678 3679 return scnprintf(buf, PAGE_SIZE, "%d\n", 3680 phba->sli4_hba.pc_sli4_params.pls); 3681 } 3682 static DEVICE_ATTR(pls, 0444, 3683 lpfc_pls_show, NULL); 3684 3685 static ssize_t 3686 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3687 { 3688 struct Scsi_Host *shost = class_to_shost(dev); 3689 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3690 3691 return scnprintf(buf, PAGE_SIZE, "%d\n", 3692 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3693 } 3694 static DEVICE_ATTR(pt, 0444, 3695 lpfc_pt_show, NULL); 3696 3697 /* 3698 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3699 # 1 - (1024) 3700 # 2 - (2048) 3701 # 3 - (3072) 3702 # 4 - (4096) 3703 # 5 - (5120) 3704 */ 3705 static ssize_t 3706 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3707 { 3708 struct Scsi_Host *shost = class_to_shost(dev); 3709 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3710 3711 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3712 } 3713 3714 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3715 lpfc_iocb_hw_show, NULL); 3716 static ssize_t 3717 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3718 { 3719 struct Scsi_Host *shost = class_to_shost(dev); 3720 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3721 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3722 3723 return scnprintf(buf, PAGE_SIZE, "%d\n", 3724 pring ? pring->txq_max : 0); 3725 } 3726 3727 static DEVICE_ATTR(txq_hw, S_IRUGO, 3728 lpfc_txq_hw_show, NULL); 3729 static ssize_t 3730 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3731 char *buf) 3732 { 3733 struct Scsi_Host *shost = class_to_shost(dev); 3734 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3735 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3736 3737 return scnprintf(buf, PAGE_SIZE, "%d\n", 3738 pring ? pring->txcmplq_max : 0); 3739 } 3740 3741 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3742 lpfc_txcmplq_hw_show, NULL); 3743 3744 /* 3745 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3746 # until the timer expires. Value range is [0,255]. Default value is 30. 3747 */ 3748 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3749 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3750 module_param(lpfc_nodev_tmo, int, 0); 3751 MODULE_PARM_DESC(lpfc_nodev_tmo, 3752 "Seconds driver will hold I/O waiting " 3753 "for a device to come back"); 3754 3755 /** 3756 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3757 * @dev: class converted to a Scsi_host structure. 3758 * @attr: device attribute, not used. 3759 * @buf: on return contains the dev loss timeout in decimal. 3760 * 3761 * Returns: size of formatted string. 3762 **/ 3763 static ssize_t 3764 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3765 char *buf) 3766 { 3767 struct Scsi_Host *shost = class_to_shost(dev); 3768 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3769 3770 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3771 } 3772 3773 /** 3774 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3775 * @vport: lpfc vport structure pointer. 3776 * @val: contains the nodev timeout value. 3777 * 3778 * Description: 3779 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3780 * a kernel error message is printed and zero is returned. 3781 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3782 * Otherwise nodev tmo is set to the default value. 3783 * 3784 * Returns: 3785 * zero if already set or if val is in range 3786 * -EINVAL val out of range 3787 **/ 3788 static int 3789 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3790 { 3791 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3792 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3793 if (val != LPFC_DEF_DEVLOSS_TMO) 3794 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3795 "0407 Ignoring lpfc_nodev_tmo module " 3796 "parameter because lpfc_devloss_tmo " 3797 "is set.\n"); 3798 return 0; 3799 } 3800 3801 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3802 vport->cfg_nodev_tmo = val; 3803 vport->cfg_devloss_tmo = val; 3804 return 0; 3805 } 3806 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3807 "0400 lpfc_nodev_tmo attribute cannot be set to" 3808 " %d, allowed range is [%d, %d]\n", 3809 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3810 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3811 return -EINVAL; 3812 } 3813 3814 /** 3815 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3816 * @vport: lpfc vport structure pointer. 3817 * 3818 * Description: 3819 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3820 **/ 3821 static void 3822 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3823 { 3824 struct Scsi_Host *shost; 3825 struct lpfc_nodelist *ndlp; 3826 #if (IS_ENABLED(CONFIG_NVME_FC)) 3827 struct lpfc_nvme_rport *rport; 3828 struct nvme_fc_remote_port *remoteport = NULL; 3829 #endif 3830 3831 shost = lpfc_shost_from_vport(vport); 3832 spin_lock_irq(shost->host_lock); 3833 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3834 if (ndlp->rport) 3835 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3836 #if (IS_ENABLED(CONFIG_NVME_FC)) 3837 spin_lock(&ndlp->lock); 3838 rport = lpfc_ndlp_get_nrport(ndlp); 3839 if (rport) 3840 remoteport = rport->remoteport; 3841 spin_unlock(&ndlp->lock); 3842 if (rport && remoteport) 3843 nvme_fc_set_remoteport_devloss(remoteport, 3844 vport->cfg_devloss_tmo); 3845 #endif 3846 } 3847 spin_unlock_irq(shost->host_lock); 3848 } 3849 3850 /** 3851 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3852 * @vport: lpfc vport structure pointer. 3853 * @val: contains the tmo value. 3854 * 3855 * Description: 3856 * If the devloss tmo is already set or the vport dev loss tmo has changed 3857 * then a kernel error message is printed and zero is returned. 3858 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3859 * Otherwise nodev tmo is set to the default value. 3860 * 3861 * Returns: 3862 * zero if already set or if val is in range 3863 * -EINVAL val out of range 3864 **/ 3865 static int 3866 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3867 { 3868 if (vport->dev_loss_tmo_changed || 3869 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3870 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3871 "0401 Ignoring change to lpfc_nodev_tmo " 3872 "because lpfc_devloss_tmo is set.\n"); 3873 return 0; 3874 } 3875 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3876 vport->cfg_nodev_tmo = val; 3877 vport->cfg_devloss_tmo = val; 3878 /* 3879 * For compat: set the fc_host dev loss so new rports 3880 * will get the value. 3881 */ 3882 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3883 lpfc_update_rport_devloss_tmo(vport); 3884 return 0; 3885 } 3886 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3887 "0403 lpfc_nodev_tmo attribute cannot be set to " 3888 "%d, allowed range is [%d, %d]\n", 3889 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3890 return -EINVAL; 3891 } 3892 3893 lpfc_vport_param_store(nodev_tmo) 3894 3895 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3896 3897 /* 3898 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3899 # disappear until the timer expires. Value range is [0,255]. Default 3900 # value is 30. 3901 */ 3902 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3903 MODULE_PARM_DESC(lpfc_devloss_tmo, 3904 "Seconds driver will hold I/O waiting " 3905 "for a device to come back"); 3906 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3907 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3908 lpfc_vport_param_show(devloss_tmo) 3909 3910 /** 3911 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3912 * @vport: lpfc vport structure pointer. 3913 * @val: contains the tmo value. 3914 * 3915 * Description: 3916 * If val is in a valid range then set the vport nodev tmo, 3917 * devloss tmo, also set the vport dev loss tmo changed flag. 3918 * Else a kernel error message is printed. 3919 * 3920 * Returns: 3921 * zero if val is in range 3922 * -EINVAL val out of range 3923 **/ 3924 static int 3925 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3926 { 3927 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3928 vport->cfg_nodev_tmo = val; 3929 vport->cfg_devloss_tmo = val; 3930 vport->dev_loss_tmo_changed = 1; 3931 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3932 lpfc_update_rport_devloss_tmo(vport); 3933 return 0; 3934 } 3935 3936 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3937 "0404 lpfc_devloss_tmo attribute cannot be set to " 3938 "%d, allowed range is [%d, %d]\n", 3939 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3940 return -EINVAL; 3941 } 3942 3943 lpfc_vport_param_store(devloss_tmo) 3944 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3945 3946 /* 3947 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3948 * lpfc_suppress_rsp = 0 Disable 3949 * lpfc_suppress_rsp = 1 Enable (default) 3950 * 3951 */ 3952 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3953 "Enable suppress rsp feature is firmware supports it"); 3954 3955 /* 3956 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3957 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3958 * lpfc_nvmet_mrq = 1 use a single RQ pair 3959 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3960 * 3961 */ 3962 LPFC_ATTR_R(nvmet_mrq, 3963 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3964 "Specify number of RQ pairs for processing NVMET cmds"); 3965 3966 /* 3967 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3968 * to each NVMET RQ. Range 64 to 2048, default is 512. 3969 */ 3970 LPFC_ATTR_R(nvmet_mrq_post, 3971 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3972 LPFC_NVMET_RQE_DEF_COUNT, 3973 "Specify number of RQ buffers to initially post"); 3974 3975 /* 3976 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3977 * Supported Values: 1 - register just FCP 3978 * 3 - register both FCP and NVME 3979 * Supported values are [1,3]. Default value is 3 3980 */ 3981 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3982 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3983 "Enable FC4 Protocol support - FCP / NVME"); 3984 3985 /* 3986 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3987 # deluged with LOTS of information. 3988 # You can set a bit mask to record specific types of verbose messages: 3989 # See lpfc_logmsh.h for definitions. 3990 */ 3991 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3992 "Verbose logging bit-mask"); 3993 3994 /* 3995 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3996 # objects that have been registered with the nameserver after login. 3997 */ 3998 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3999 "Deregister nameserver objects before LOGO"); 4000 4001 /* 4002 # lun_queue_depth: This parameter is used to limit the number of outstanding 4003 # commands per FCP LUN. 4004 */ 4005 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 4006 "Max number of FCP commands we can queue to a specific LUN"); 4007 4008 /* 4009 # tgt_queue_depth: This parameter is used to limit the number of outstanding 4010 # commands per target port. Value range is [10,65535]. Default value is 65535. 4011 */ 4012 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 4013 module_param(lpfc_tgt_queue_depth, uint, 0444); 4014 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 4015 lpfc_vport_param_show(tgt_queue_depth); 4016 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 4017 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 4018 4019 /** 4020 * lpfc_tgt_queue_depth_set: Sets an attribute value. 4021 * @vport: lpfc vport structure pointer. 4022 * @val: integer attribute value. 4023 * 4024 * Description: Sets the parameter to the new value. 4025 * 4026 * Returns: 4027 * zero on success 4028 * -EINVAL if val is invalid 4029 */ 4030 static int 4031 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 4032 { 4033 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4034 struct lpfc_nodelist *ndlp; 4035 4036 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 4037 return -EINVAL; 4038 4039 if (val == vport->cfg_tgt_queue_depth) 4040 return 0; 4041 4042 spin_lock_irq(shost->host_lock); 4043 vport->cfg_tgt_queue_depth = val; 4044 4045 /* Next loop thru nodelist and change cmd_qdepth */ 4046 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 4047 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4048 4049 spin_unlock_irq(shost->host_lock); 4050 return 0; 4051 } 4052 4053 lpfc_vport_param_store(tgt_queue_depth); 4054 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 4055 4056 /* 4057 # hba_queue_depth: This parameter is used to limit the number of outstanding 4058 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 4059 # value is greater than the maximum number of exchanges supported by the HBA, 4060 # then maximum number of exchanges supported by the HBA is used to determine 4061 # the hba_queue_depth. 4062 */ 4063 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 4064 "Max number of FCP commands we can queue to a lpfc HBA"); 4065 4066 /* 4067 # peer_port_login: This parameter allows/prevents logins 4068 # between peer ports hosted on the same physical port. 4069 # When this parameter is set 0 peer ports of same physical port 4070 # are not allowed to login to each other. 4071 # When this parameter is set 1 peer ports of same physical port 4072 # are allowed to login to each other. 4073 # Default value of this parameter is 0. 4074 */ 4075 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 4076 "Allow peer ports on the same physical port to login to each " 4077 "other."); 4078 4079 /* 4080 # restrict_login: This parameter allows/prevents logins 4081 # between Virtual Ports and remote initiators. 4082 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 4083 # other initiators and will attempt to PLOGI all remote ports. 4084 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 4085 # remote ports and will not attempt to PLOGI to other initiators. 4086 # This parameter does not restrict to the physical port. 4087 # This parameter does not restrict logins to Fabric resident remote ports. 4088 # Default value of this parameter is 1. 4089 */ 4090 static int lpfc_restrict_login = 1; 4091 module_param(lpfc_restrict_login, int, S_IRUGO); 4092 MODULE_PARM_DESC(lpfc_restrict_login, 4093 "Restrict virtual ports login to remote initiators."); 4094 lpfc_vport_param_show(restrict_login); 4095 4096 /** 4097 * lpfc_restrict_login_init - Set the vport restrict login flag 4098 * @vport: lpfc vport structure pointer. 4099 * @val: contains the restrict login value. 4100 * 4101 * Description: 4102 * If val is not in a valid range then log a kernel error message and set 4103 * the vport restrict login to one. 4104 * If the port type is physical clear the restrict login flag and return. 4105 * Else set the restrict login flag to val. 4106 * 4107 * Returns: 4108 * zero if val is in range 4109 * -EINVAL val out of range 4110 **/ 4111 static int 4112 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 4113 { 4114 if (val < 0 || val > 1) { 4115 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4116 "0422 lpfc_restrict_login attribute cannot " 4117 "be set to %d, allowed range is [0, 1]\n", 4118 val); 4119 vport->cfg_restrict_login = 1; 4120 return -EINVAL; 4121 } 4122 if (vport->port_type == LPFC_PHYSICAL_PORT) { 4123 vport->cfg_restrict_login = 0; 4124 return 0; 4125 } 4126 vport->cfg_restrict_login = val; 4127 return 0; 4128 } 4129 4130 /** 4131 * lpfc_restrict_login_set - Set the vport restrict login flag 4132 * @vport: lpfc vport structure pointer. 4133 * @val: contains the restrict login value. 4134 * 4135 * Description: 4136 * If val is not in a valid range then log a kernel error message and set 4137 * the vport restrict login to one. 4138 * If the port type is physical and the val is not zero log a kernel 4139 * error message, clear the restrict login flag and return zero. 4140 * Else set the restrict login flag to val. 4141 * 4142 * Returns: 4143 * zero if val is in range 4144 * -EINVAL val out of range 4145 **/ 4146 static int 4147 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4148 { 4149 if (val < 0 || val > 1) { 4150 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4151 "0425 lpfc_restrict_login attribute cannot " 4152 "be set to %d, allowed range is [0, 1]\n", 4153 val); 4154 vport->cfg_restrict_login = 1; 4155 return -EINVAL; 4156 } 4157 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4158 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4159 "0468 lpfc_restrict_login must be 0 for " 4160 "Physical ports.\n"); 4161 vport->cfg_restrict_login = 0; 4162 return 0; 4163 } 4164 vport->cfg_restrict_login = val; 4165 return 0; 4166 } 4167 lpfc_vport_param_store(restrict_login); 4168 static DEVICE_ATTR_RW(lpfc_restrict_login); 4169 4170 /* 4171 # Some disk devices have a "select ID" or "select Target" capability. 4172 # From a protocol standpoint "select ID" usually means select the 4173 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4174 # annex" which contains a table that maps a "select ID" (a number 4175 # between 0 and 7F) to an ALPA. By default, for compatibility with 4176 # older drivers, the lpfc driver scans this table from low ALPA to high 4177 # ALPA. 4178 # 4179 # Turning on the scan-down variable (on = 1, off = 0) will 4180 # cause the lpfc driver to use an inverted table, effectively 4181 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4182 # 4183 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 4184 # and will not work across a fabric. Also this parameter will take 4185 # effect only in the case when ALPA map is not available.) 4186 */ 4187 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4188 "Start scanning for devices from highest ALPA to lowest"); 4189 4190 /* 4191 # lpfc_topology: link topology for init link 4192 # 0x0 = attempt loop mode then point-to-point 4193 # 0x01 = internal loopback mode 4194 # 0x02 = attempt point-to-point mode only 4195 # 0x04 = attempt loop mode only 4196 # 0x06 = attempt point-to-point mode then loop 4197 # Set point-to-point mode if you want to run as an N_Port. 4198 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4199 # Default value is 0. 4200 */ 4201 LPFC_ATTR(topology, 0, 0, 6, 4202 "Select Fibre Channel topology"); 4203 4204 /** 4205 * lpfc_topology_store - Set the adapters topology field 4206 * @dev: class device that is converted into a scsi_host. 4207 * @attr:device attribute, not used. 4208 * @buf: buffer for passing information. 4209 * @count: size of the data buffer. 4210 * 4211 * Description: 4212 * If val is in a valid range then set the adapter's topology field and 4213 * issue a lip; if the lip fails reset the topology to the old value. 4214 * 4215 * If the value is not in range log a kernel error message and return an error. 4216 * 4217 * Returns: 4218 * zero if val is in range and lip okay 4219 * non-zero return value from lpfc_issue_lip() 4220 * -EINVAL val out of range 4221 **/ 4222 static ssize_t 4223 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4224 const char *buf, size_t count) 4225 { 4226 struct Scsi_Host *shost = class_to_shost(dev); 4227 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4228 struct lpfc_hba *phba = vport->phba; 4229 int val = 0; 4230 int nolip = 0; 4231 const char *val_buf = buf; 4232 int err; 4233 uint32_t prev_val; 4234 u8 sli_family, if_type; 4235 4236 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4237 nolip = 1; 4238 val_buf = &buf[strlen("nolip ")]; 4239 } 4240 4241 if (!isdigit(val_buf[0])) 4242 return -EINVAL; 4243 if (sscanf(val_buf, "%i", &val) != 1) 4244 return -EINVAL; 4245 4246 if (val >= 0 && val <= 6) { 4247 prev_val = phba->cfg_topology; 4248 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4249 val == 4) { 4250 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4251 "3113 Loop mode not supported at speed %d\n", 4252 val); 4253 return -EINVAL; 4254 } 4255 /* 4256 * The 'topology' is not a configurable parameter if : 4257 * - persistent topology enabled 4258 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4259 */ 4260 sli_family = bf_get(lpfc_sli_intf_sli_family, 4261 &phba->sli4_hba.sli_intf); 4262 if_type = bf_get(lpfc_sli_intf_if_type, 4263 &phba->sli4_hba.sli_intf); 4264 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4265 (!phba->sli4_hba.pc_sli4_params.pls && 4266 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4267 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4268 val == 4) { 4269 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4270 "3114 Loop mode not supported\n"); 4271 return -EINVAL; 4272 } 4273 phba->cfg_topology = val; 4274 if (nolip) 4275 return strlen(buf); 4276 4277 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4278 "3054 lpfc_topology changed from %d to %d\n", 4279 prev_val, val); 4280 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4281 phba->fc_topology_changed = 1; 4282 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4283 if (err) { 4284 phba->cfg_topology = prev_val; 4285 return -EINVAL; 4286 } else 4287 return strlen(buf); 4288 } 4289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4290 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4291 "allowed range is [0, 6]\n", 4292 phba->brd_no, val); 4293 return -EINVAL; 4294 } 4295 4296 lpfc_param_show(topology) 4297 static DEVICE_ATTR_RW(lpfc_topology); 4298 4299 /** 4300 * lpfc_static_vport_show: Read callback function for 4301 * lpfc_static_vport sysfs file. 4302 * @dev: Pointer to class device object. 4303 * @attr: device attribute structure. 4304 * @buf: Data buffer. 4305 * 4306 * This function is the read call back function for 4307 * lpfc_static_vport sysfs file. The lpfc_static_vport 4308 * sysfs file report the mageability of the vport. 4309 **/ 4310 static ssize_t 4311 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4312 char *buf) 4313 { 4314 struct Scsi_Host *shost = class_to_shost(dev); 4315 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4316 if (vport->vport_flag & STATIC_VPORT) 4317 sprintf(buf, "1\n"); 4318 else 4319 sprintf(buf, "0\n"); 4320 4321 return strlen(buf); 4322 } 4323 4324 /* 4325 * Sysfs attribute to control the statistical data collection. 4326 */ 4327 static DEVICE_ATTR_RO(lpfc_static_vport); 4328 4329 /** 4330 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4331 * @dev: Pointer to class device. 4332 * @attr: Unused. 4333 * @buf: Data buffer. 4334 * @count: Size of the data buffer. 4335 * 4336 * This function get called when a user write to the lpfc_stat_data_ctrl 4337 * sysfs file. This function parse the command written to the sysfs file 4338 * and take appropriate action. These commands are used for controlling 4339 * driver statistical data collection. 4340 * Following are the command this function handles. 4341 * 4342 * setbucket <bucket_type> <base> <step> 4343 * = Set the latency buckets. 4344 * destroybucket = destroy all the buckets. 4345 * start = start data collection 4346 * stop = stop data collection 4347 * reset = reset the collected data 4348 **/ 4349 static ssize_t 4350 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4351 const char *buf, size_t count) 4352 { 4353 struct Scsi_Host *shost = class_to_shost(dev); 4354 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4355 struct lpfc_hba *phba = vport->phba; 4356 #define LPFC_MAX_DATA_CTRL_LEN 1024 4357 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4358 unsigned long i; 4359 char *str_ptr, *token; 4360 struct lpfc_vport **vports; 4361 struct Scsi_Host *v_shost; 4362 char *bucket_type_str, *base_str, *step_str; 4363 unsigned long base, step, bucket_type; 4364 4365 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4366 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4367 return -EINVAL; 4368 4369 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4370 str_ptr = &bucket_data[0]; 4371 /* Ignore this token - this is command token */ 4372 token = strsep(&str_ptr, "\t "); 4373 if (!token) 4374 return -EINVAL; 4375 4376 bucket_type_str = strsep(&str_ptr, "\t "); 4377 if (!bucket_type_str) 4378 return -EINVAL; 4379 4380 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4381 bucket_type = LPFC_LINEAR_BUCKET; 4382 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4383 bucket_type = LPFC_POWER2_BUCKET; 4384 else 4385 return -EINVAL; 4386 4387 base_str = strsep(&str_ptr, "\t "); 4388 if (!base_str) 4389 return -EINVAL; 4390 base = simple_strtoul(base_str, NULL, 0); 4391 4392 step_str = strsep(&str_ptr, "\t "); 4393 if (!step_str) 4394 return -EINVAL; 4395 step = simple_strtoul(step_str, NULL, 0); 4396 if (!step) 4397 return -EINVAL; 4398 4399 /* Block the data collection for every vport */ 4400 vports = lpfc_create_vport_work_array(phba); 4401 if (vports == NULL) 4402 return -ENOMEM; 4403 4404 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4405 v_shost = lpfc_shost_from_vport(vports[i]); 4406 spin_lock_irq(v_shost->host_lock); 4407 /* Block and reset data collection */ 4408 vports[i]->stat_data_blocked = 1; 4409 if (vports[i]->stat_data_enabled) 4410 lpfc_vport_reset_stat_data(vports[i]); 4411 spin_unlock_irq(v_shost->host_lock); 4412 } 4413 4414 /* Set the bucket attributes */ 4415 phba->bucket_type = bucket_type; 4416 phba->bucket_base = base; 4417 phba->bucket_step = step; 4418 4419 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4420 v_shost = lpfc_shost_from_vport(vports[i]); 4421 4422 /* Unblock data collection */ 4423 spin_lock_irq(v_shost->host_lock); 4424 vports[i]->stat_data_blocked = 0; 4425 spin_unlock_irq(v_shost->host_lock); 4426 } 4427 lpfc_destroy_vport_work_array(phba, vports); 4428 return strlen(buf); 4429 } 4430 4431 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4432 vports = lpfc_create_vport_work_array(phba); 4433 if (vports == NULL) 4434 return -ENOMEM; 4435 4436 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4437 v_shost = lpfc_shost_from_vport(vports[i]); 4438 spin_lock_irq(shost->host_lock); 4439 vports[i]->stat_data_blocked = 1; 4440 lpfc_free_bucket(vport); 4441 vport->stat_data_enabled = 0; 4442 vports[i]->stat_data_blocked = 0; 4443 spin_unlock_irq(shost->host_lock); 4444 } 4445 lpfc_destroy_vport_work_array(phba, vports); 4446 phba->bucket_type = LPFC_NO_BUCKET; 4447 phba->bucket_base = 0; 4448 phba->bucket_step = 0; 4449 return strlen(buf); 4450 } 4451 4452 if (!strncmp(buf, "start", strlen("start"))) { 4453 /* If no buckets configured return error */ 4454 if (phba->bucket_type == LPFC_NO_BUCKET) 4455 return -EINVAL; 4456 spin_lock_irq(shost->host_lock); 4457 if (vport->stat_data_enabled) { 4458 spin_unlock_irq(shost->host_lock); 4459 return strlen(buf); 4460 } 4461 lpfc_alloc_bucket(vport); 4462 vport->stat_data_enabled = 1; 4463 spin_unlock_irq(shost->host_lock); 4464 return strlen(buf); 4465 } 4466 4467 if (!strncmp(buf, "stop", strlen("stop"))) { 4468 spin_lock_irq(shost->host_lock); 4469 if (vport->stat_data_enabled == 0) { 4470 spin_unlock_irq(shost->host_lock); 4471 return strlen(buf); 4472 } 4473 lpfc_free_bucket(vport); 4474 vport->stat_data_enabled = 0; 4475 spin_unlock_irq(shost->host_lock); 4476 return strlen(buf); 4477 } 4478 4479 if (!strncmp(buf, "reset", strlen("reset"))) { 4480 if ((phba->bucket_type == LPFC_NO_BUCKET) 4481 || !vport->stat_data_enabled) 4482 return strlen(buf); 4483 spin_lock_irq(shost->host_lock); 4484 vport->stat_data_blocked = 1; 4485 lpfc_vport_reset_stat_data(vport); 4486 vport->stat_data_blocked = 0; 4487 spin_unlock_irq(shost->host_lock); 4488 return strlen(buf); 4489 } 4490 return -EINVAL; 4491 } 4492 4493 4494 /** 4495 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4496 * @dev: Pointer to class device. 4497 * @attr: Unused. 4498 * @buf: Data buffer. 4499 * 4500 * This function is the read call back function for 4501 * lpfc_stat_data_ctrl sysfs file. This function report the 4502 * current statistical data collection state. 4503 **/ 4504 static ssize_t 4505 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4506 char *buf) 4507 { 4508 struct Scsi_Host *shost = class_to_shost(dev); 4509 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4510 struct lpfc_hba *phba = vport->phba; 4511 int index = 0; 4512 int i; 4513 char *bucket_type; 4514 unsigned long bucket_value; 4515 4516 switch (phba->bucket_type) { 4517 case LPFC_LINEAR_BUCKET: 4518 bucket_type = "linear"; 4519 break; 4520 case LPFC_POWER2_BUCKET: 4521 bucket_type = "power2"; 4522 break; 4523 default: 4524 bucket_type = "No Bucket"; 4525 break; 4526 } 4527 4528 sprintf(&buf[index], "Statistical Data enabled :%d, " 4529 "blocked :%d, Bucket type :%s, Bucket base :%d," 4530 " Bucket step :%d\nLatency Ranges :", 4531 vport->stat_data_enabled, vport->stat_data_blocked, 4532 bucket_type, phba->bucket_base, phba->bucket_step); 4533 index = strlen(buf); 4534 if (phba->bucket_type != LPFC_NO_BUCKET) { 4535 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4536 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4537 bucket_value = phba->bucket_base + 4538 phba->bucket_step * i; 4539 else 4540 bucket_value = phba->bucket_base + 4541 (1 << i) * phba->bucket_step; 4542 4543 if (index + 10 > PAGE_SIZE) 4544 break; 4545 sprintf(&buf[index], "%08ld ", bucket_value); 4546 index = strlen(buf); 4547 } 4548 } 4549 sprintf(&buf[index], "\n"); 4550 return strlen(buf); 4551 } 4552 4553 /* 4554 * Sysfs attribute to control the statistical data collection. 4555 */ 4556 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4557 4558 /* 4559 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4560 */ 4561 4562 /* 4563 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4564 * for each target. 4565 */ 4566 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4567 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4568 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4569 4570 4571 /** 4572 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4573 * @filp: sysfs file 4574 * @kobj: Pointer to the kernel object 4575 * @bin_attr: Attribute object 4576 * @buf: Buffer pointer 4577 * @off: File offset 4578 * @count: Buffer size 4579 * 4580 * This function is the read call back function for lpfc_drvr_stat_data 4581 * sysfs file. This function export the statistical data to user 4582 * applications. 4583 **/ 4584 static ssize_t 4585 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4586 struct bin_attribute *bin_attr, 4587 char *buf, loff_t off, size_t count) 4588 { 4589 struct device *dev = container_of(kobj, struct device, 4590 kobj); 4591 struct Scsi_Host *shost = class_to_shost(dev); 4592 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4593 struct lpfc_hba *phba = vport->phba; 4594 int i = 0, index = 0; 4595 unsigned long nport_index; 4596 struct lpfc_nodelist *ndlp = NULL; 4597 nport_index = (unsigned long)off / 4598 MAX_STAT_DATA_SIZE_PER_TARGET; 4599 4600 if (!vport->stat_data_enabled || vport->stat_data_blocked 4601 || (phba->bucket_type == LPFC_NO_BUCKET)) 4602 return 0; 4603 4604 spin_lock_irq(shost->host_lock); 4605 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4606 if (!ndlp->lat_data) 4607 continue; 4608 4609 if (nport_index > 0) { 4610 nport_index--; 4611 continue; 4612 } 4613 4614 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4615 > count) 4616 break; 4617 4618 if (!ndlp->lat_data) 4619 continue; 4620 4621 /* Print the WWN */ 4622 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4623 ndlp->nlp_portname.u.wwn[0], 4624 ndlp->nlp_portname.u.wwn[1], 4625 ndlp->nlp_portname.u.wwn[2], 4626 ndlp->nlp_portname.u.wwn[3], 4627 ndlp->nlp_portname.u.wwn[4], 4628 ndlp->nlp_portname.u.wwn[5], 4629 ndlp->nlp_portname.u.wwn[6], 4630 ndlp->nlp_portname.u.wwn[7]); 4631 4632 index = strlen(buf); 4633 4634 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4635 sprintf(&buf[index], "%010u,", 4636 ndlp->lat_data[i].cmd_count); 4637 index = strlen(buf); 4638 } 4639 sprintf(&buf[index], "\n"); 4640 index = strlen(buf); 4641 } 4642 spin_unlock_irq(shost->host_lock); 4643 return index; 4644 } 4645 4646 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4647 .attr = { 4648 .name = "lpfc_drvr_stat_data", 4649 .mode = S_IRUSR, 4650 }, 4651 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4652 .read = sysfs_drvr_stat_data_read, 4653 .write = NULL, 4654 }; 4655 4656 /* 4657 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4658 # connection. 4659 # Value range is [0,16]. Default value is 0. 4660 */ 4661 /** 4662 * lpfc_link_speed_store - Set the adapters link speed 4663 * @dev: Pointer to class device. 4664 * @attr: Unused. 4665 * @buf: Data buffer. 4666 * @count: Size of the data buffer. 4667 * 4668 * Description: 4669 * If val is in a valid range then set the adapter's link speed field and 4670 * issue a lip; if the lip fails reset the link speed to the old value. 4671 * 4672 * Notes: 4673 * If the value is not in range log a kernel error message and return an error. 4674 * 4675 * Returns: 4676 * zero if val is in range and lip okay. 4677 * non-zero return value from lpfc_issue_lip() 4678 * -EINVAL val out of range 4679 **/ 4680 static ssize_t 4681 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4682 const char *buf, size_t count) 4683 { 4684 struct Scsi_Host *shost = class_to_shost(dev); 4685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4686 struct lpfc_hba *phba = vport->phba; 4687 int val = LPFC_USER_LINK_SPEED_AUTO; 4688 int nolip = 0; 4689 const char *val_buf = buf; 4690 int err; 4691 uint32_t prev_val, if_type; 4692 4693 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4694 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4695 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4696 return -EPERM; 4697 4698 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4699 nolip = 1; 4700 val_buf = &buf[strlen("nolip ")]; 4701 } 4702 4703 if (!isdigit(val_buf[0])) 4704 return -EINVAL; 4705 if (sscanf(val_buf, "%i", &val) != 1) 4706 return -EINVAL; 4707 4708 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4709 "3055 lpfc_link_speed changed from %d to %d %s\n", 4710 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4711 4712 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4713 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4714 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4715 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4716 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4717 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4718 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4719 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4721 "2879 lpfc_link_speed attribute cannot be set " 4722 "to %d. Speed is not supported by this port.\n", 4723 val); 4724 return -EINVAL; 4725 } 4726 if (val >= LPFC_USER_LINK_SPEED_16G && 4727 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4729 "3112 lpfc_link_speed attribute cannot be set " 4730 "to %d. Speed is not supported in loop mode.\n", 4731 val); 4732 return -EINVAL; 4733 } 4734 4735 switch (val) { 4736 case LPFC_USER_LINK_SPEED_AUTO: 4737 case LPFC_USER_LINK_SPEED_1G: 4738 case LPFC_USER_LINK_SPEED_2G: 4739 case LPFC_USER_LINK_SPEED_4G: 4740 case LPFC_USER_LINK_SPEED_8G: 4741 case LPFC_USER_LINK_SPEED_16G: 4742 case LPFC_USER_LINK_SPEED_32G: 4743 case LPFC_USER_LINK_SPEED_64G: 4744 prev_val = phba->cfg_link_speed; 4745 phba->cfg_link_speed = val; 4746 if (nolip) 4747 return strlen(buf); 4748 4749 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4750 if (err) { 4751 phba->cfg_link_speed = prev_val; 4752 return -EINVAL; 4753 } 4754 return strlen(buf); 4755 default: 4756 break; 4757 } 4758 4759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4760 "0469 lpfc_link_speed attribute cannot be set to %d, " 4761 "allowed values are [%s]\n", 4762 val, LPFC_LINK_SPEED_STRING); 4763 return -EINVAL; 4764 4765 } 4766 4767 static int lpfc_link_speed = 0; 4768 module_param(lpfc_link_speed, int, S_IRUGO); 4769 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4770 lpfc_param_show(link_speed) 4771 4772 /** 4773 * lpfc_link_speed_init - Set the adapters link speed 4774 * @phba: lpfc_hba pointer. 4775 * @val: link speed value. 4776 * 4777 * Description: 4778 * If val is in a valid range then set the adapter's link speed field. 4779 * 4780 * Notes: 4781 * If the value is not in range log a kernel error message, clear the link 4782 * speed and return an error. 4783 * 4784 * Returns: 4785 * zero if val saved. 4786 * -EINVAL val out of range 4787 **/ 4788 static int 4789 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4790 { 4791 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4793 "3111 lpfc_link_speed of %d cannot " 4794 "support loop mode, setting topology to default.\n", 4795 val); 4796 phba->cfg_topology = 0; 4797 } 4798 4799 switch (val) { 4800 case LPFC_USER_LINK_SPEED_AUTO: 4801 case LPFC_USER_LINK_SPEED_1G: 4802 case LPFC_USER_LINK_SPEED_2G: 4803 case LPFC_USER_LINK_SPEED_4G: 4804 case LPFC_USER_LINK_SPEED_8G: 4805 case LPFC_USER_LINK_SPEED_16G: 4806 case LPFC_USER_LINK_SPEED_32G: 4807 case LPFC_USER_LINK_SPEED_64G: 4808 phba->cfg_link_speed = val; 4809 return 0; 4810 default: 4811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4812 "0405 lpfc_link_speed attribute cannot " 4813 "be set to %d, allowed values are " 4814 "["LPFC_LINK_SPEED_STRING"]\n", val); 4815 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4816 return -EINVAL; 4817 } 4818 } 4819 4820 static DEVICE_ATTR_RW(lpfc_link_speed); 4821 4822 /* 4823 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4824 # 0 = aer disabled or not supported 4825 # 1 = aer supported and enabled (default) 4826 # Value range is [0,1]. Default value is 1. 4827 */ 4828 LPFC_ATTR(aer_support, 1, 0, 1, 4829 "Enable PCIe device AER support"); 4830 lpfc_param_show(aer_support) 4831 4832 /** 4833 * lpfc_aer_support_store - Set the adapter for aer support 4834 * 4835 * @dev: class device that is converted into a Scsi_host. 4836 * @attr: device attribute, not used. 4837 * @buf: containing enable or disable aer flag. 4838 * @count: unused variable. 4839 * 4840 * Description: 4841 * If the val is 1 and currently the device's AER capability was not 4842 * enabled, invoke the kernel's enable AER helper routine, trying to 4843 * enable the device's AER capability. If the helper routine enabling 4844 * AER returns success, update the device's cfg_aer_support flag to 4845 * indicate AER is supported by the device; otherwise, if the device 4846 * AER capability is already enabled to support AER, then do nothing. 4847 * 4848 * If the val is 0 and currently the device's AER support was enabled, 4849 * invoke the kernel's disable AER helper routine. After that, update 4850 * the device's cfg_aer_support flag to indicate AER is not supported 4851 * by the device; otherwise, if the device AER capability is already 4852 * disabled from supporting AER, then do nothing. 4853 * 4854 * Returns: 4855 * length of the buf on success if val is in range the intended mode 4856 * is supported. 4857 * -EINVAL if val out of range or intended mode is not supported. 4858 **/ 4859 static ssize_t 4860 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4861 const char *buf, size_t count) 4862 { 4863 struct Scsi_Host *shost = class_to_shost(dev); 4864 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4865 struct lpfc_hba *phba = vport->phba; 4866 int val = 0, rc = -EINVAL; 4867 4868 if (!isdigit(buf[0])) 4869 return -EINVAL; 4870 if (sscanf(buf, "%i", &val) != 1) 4871 return -EINVAL; 4872 4873 switch (val) { 4874 case 0: 4875 if (phba->hba_flag & HBA_AER_ENABLED) { 4876 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4877 if (!rc) { 4878 spin_lock_irq(&phba->hbalock); 4879 phba->hba_flag &= ~HBA_AER_ENABLED; 4880 spin_unlock_irq(&phba->hbalock); 4881 phba->cfg_aer_support = 0; 4882 rc = strlen(buf); 4883 } else 4884 rc = -EPERM; 4885 } else { 4886 phba->cfg_aer_support = 0; 4887 rc = strlen(buf); 4888 } 4889 break; 4890 case 1: 4891 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4892 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4893 if (!rc) { 4894 spin_lock_irq(&phba->hbalock); 4895 phba->hba_flag |= HBA_AER_ENABLED; 4896 spin_unlock_irq(&phba->hbalock); 4897 phba->cfg_aer_support = 1; 4898 rc = strlen(buf); 4899 } else 4900 rc = -EPERM; 4901 } else { 4902 phba->cfg_aer_support = 1; 4903 rc = strlen(buf); 4904 } 4905 break; 4906 default: 4907 rc = -EINVAL; 4908 break; 4909 } 4910 return rc; 4911 } 4912 4913 static DEVICE_ATTR_RW(lpfc_aer_support); 4914 4915 /** 4916 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4917 * @dev: class device that is converted into a Scsi_host. 4918 * @attr: device attribute, not used. 4919 * @buf: containing flag 1 for aer cleanup state. 4920 * @count: unused variable. 4921 * 4922 * Description: 4923 * If the @buf contains 1 and the device currently has the AER support 4924 * enabled, then invokes the kernel AER helper routine 4925 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4926 * error status register. 4927 * 4928 * Notes: 4929 * 4930 * Returns: 4931 * -EINVAL if the buf does not contain the 1 or the device is not currently 4932 * enabled with the AER support. 4933 **/ 4934 static ssize_t 4935 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4936 const char *buf, size_t count) 4937 { 4938 struct Scsi_Host *shost = class_to_shost(dev); 4939 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4940 struct lpfc_hba *phba = vport->phba; 4941 int val, rc = -1; 4942 4943 if (!isdigit(buf[0])) 4944 return -EINVAL; 4945 if (sscanf(buf, "%i", &val) != 1) 4946 return -EINVAL; 4947 if (val != 1) 4948 return -EINVAL; 4949 4950 if (phba->hba_flag & HBA_AER_ENABLED) 4951 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4952 4953 if (rc == 0) 4954 return strlen(buf); 4955 else 4956 return -EPERM; 4957 } 4958 4959 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4960 lpfc_aer_cleanup_state); 4961 4962 /** 4963 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4964 * 4965 * @dev: class device that is converted into a Scsi_host. 4966 * @attr: device attribute, not used. 4967 * @buf: containing the string the number of vfs to be enabled. 4968 * @count: unused variable. 4969 * 4970 * Description: 4971 * When this api is called either through user sysfs, the driver shall 4972 * try to enable or disable SR-IOV virtual functions according to the 4973 * following: 4974 * 4975 * If zero virtual function has been enabled to the physical function, 4976 * the driver shall invoke the pci enable virtual function api trying 4977 * to enable the virtual functions. If the nr_vfn provided is greater 4978 * than the maximum supported, the maximum virtual function number will 4979 * be used for invoking the api; otherwise, the nr_vfn provided shall 4980 * be used for invoking the api. If the api call returned success, the 4981 * actual number of virtual functions enabled will be set to the driver 4982 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4983 * cfg_sriov_nr_virtfn remains zero. 4984 * 4985 * If none-zero virtual functions have already been enabled to the 4986 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4987 * -EINVAL will be returned and the driver does nothing; 4988 * 4989 * If the nr_vfn provided is zero and none-zero virtual functions have 4990 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4991 * disabling virtual function api shall be invoded to disable all the 4992 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4993 * zero. Otherwise, if zero virtual function has been enabled, do 4994 * nothing. 4995 * 4996 * Returns: 4997 * length of the buf on success if val is in range the intended mode 4998 * is supported. 4999 * -EINVAL if val out of range or intended mode is not supported. 5000 **/ 5001 static ssize_t 5002 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 5003 const char *buf, size_t count) 5004 { 5005 struct Scsi_Host *shost = class_to_shost(dev); 5006 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5007 struct lpfc_hba *phba = vport->phba; 5008 struct pci_dev *pdev = phba->pcidev; 5009 int val = 0, rc = -EINVAL; 5010 5011 /* Sanity check on user data */ 5012 if (!isdigit(buf[0])) 5013 return -EINVAL; 5014 if (sscanf(buf, "%i", &val) != 1) 5015 return -EINVAL; 5016 if (val < 0) 5017 return -EINVAL; 5018 5019 /* Request disabling virtual functions */ 5020 if (val == 0) { 5021 if (phba->cfg_sriov_nr_virtfn > 0) { 5022 pci_disable_sriov(pdev); 5023 phba->cfg_sriov_nr_virtfn = 0; 5024 } 5025 return strlen(buf); 5026 } 5027 5028 /* Request enabling virtual functions */ 5029 if (phba->cfg_sriov_nr_virtfn > 0) { 5030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5031 "3018 There are %d virtual functions " 5032 "enabled on physical function.\n", 5033 phba->cfg_sriov_nr_virtfn); 5034 return -EEXIST; 5035 } 5036 5037 if (val <= LPFC_MAX_VFN_PER_PFN) 5038 phba->cfg_sriov_nr_virtfn = val; 5039 else { 5040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5041 "3019 Enabling %d virtual functions is not " 5042 "allowed.\n", val); 5043 return -EINVAL; 5044 } 5045 5046 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 5047 if (rc) { 5048 phba->cfg_sriov_nr_virtfn = 0; 5049 rc = -EPERM; 5050 } else 5051 rc = strlen(buf); 5052 5053 return rc; 5054 } 5055 5056 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 5057 "Enable PCIe device SR-IOV virtual fn"); 5058 5059 lpfc_param_show(sriov_nr_virtfn) 5060 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 5061 5062 /** 5063 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 5064 * 5065 * @dev: class device that is converted into a Scsi_host. 5066 * @attr: device attribute, not used. 5067 * @buf: containing the string the number of vfs to be enabled. 5068 * @count: unused variable. 5069 * 5070 * Description: 5071 * 5072 * Returns: 5073 * length of the buf on success if val is in range the intended mode 5074 * is supported. 5075 * -EINVAL if val out of range or intended mode is not supported. 5076 **/ 5077 static ssize_t 5078 lpfc_request_firmware_upgrade_store(struct device *dev, 5079 struct device_attribute *attr, 5080 const char *buf, size_t count) 5081 { 5082 struct Scsi_Host *shost = class_to_shost(dev); 5083 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5084 struct lpfc_hba *phba = vport->phba; 5085 int val = 0, rc; 5086 5087 /* Sanity check on user data */ 5088 if (!isdigit(buf[0])) 5089 return -EINVAL; 5090 if (sscanf(buf, "%i", &val) != 1) 5091 return -EINVAL; 5092 if (val != 1) 5093 return -EINVAL; 5094 5095 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 5096 if (rc) 5097 rc = -EPERM; 5098 else 5099 rc = strlen(buf); 5100 return rc; 5101 } 5102 5103 static int lpfc_req_fw_upgrade; 5104 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 5105 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 5106 lpfc_param_show(request_firmware_upgrade) 5107 5108 /** 5109 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 5110 * @phba: lpfc_hba pointer. 5111 * @val: 0 or 1. 5112 * 5113 * Description: 5114 * Set the initial Linux generic firmware upgrade enable or disable flag. 5115 * 5116 * Returns: 5117 * zero if val saved. 5118 * -EINVAL val out of range 5119 **/ 5120 static int 5121 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 5122 { 5123 if (val >= 0 && val <= 1) { 5124 phba->cfg_request_firmware_upgrade = val; 5125 return 0; 5126 } 5127 return -EINVAL; 5128 } 5129 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 5130 lpfc_request_firmware_upgrade_show, 5131 lpfc_request_firmware_upgrade_store); 5132 5133 /** 5134 * lpfc_force_rscn_store 5135 * 5136 * @dev: class device that is converted into a Scsi_host. 5137 * @attr: device attribute, not used. 5138 * @buf: unused string 5139 * @count: unused variable. 5140 * 5141 * Description: 5142 * Force the switch to send a RSCN to all other NPorts in our zone 5143 * If we are direct connect pt2pt, build the RSCN command ourself 5144 * and send to the other NPort. Not supported for private loop. 5145 * 5146 * Returns: 5147 * 0 - on success 5148 * -EIO - if command is not sent 5149 **/ 5150 static ssize_t 5151 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 5152 const char *buf, size_t count) 5153 { 5154 struct Scsi_Host *shost = class_to_shost(dev); 5155 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5156 int i; 5157 5158 i = lpfc_issue_els_rscn(vport, 0); 5159 if (i) 5160 return -EIO; 5161 return strlen(buf); 5162 } 5163 5164 /* 5165 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 5166 * connected to the HBA. 5167 * 5168 * Value range is any ascii value 5169 */ 5170 static int lpfc_force_rscn; 5171 module_param(lpfc_force_rscn, int, 0644); 5172 MODULE_PARM_DESC(lpfc_force_rscn, 5173 "Force an RSCN to be sent to all remote NPorts"); 5174 lpfc_param_show(force_rscn) 5175 5176 /** 5177 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 5178 * @phba: lpfc_hba pointer. 5179 * @val: unused value. 5180 * 5181 * Returns: 5182 * zero if val saved. 5183 **/ 5184 static int 5185 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 5186 { 5187 return 0; 5188 } 5189 static DEVICE_ATTR_RW(lpfc_force_rscn); 5190 5191 /** 5192 * lpfc_fcp_imax_store 5193 * 5194 * @dev: class device that is converted into a Scsi_host. 5195 * @attr: device attribute, not used. 5196 * @buf: string with the number of fast-path FCP interrupts per second. 5197 * @count: unused variable. 5198 * 5199 * Description: 5200 * If val is in a valid range [636,651042], then set the adapter's 5201 * maximum number of fast-path FCP interrupts per second. 5202 * 5203 * Returns: 5204 * length of the buf on success if val is in range the intended mode 5205 * is supported. 5206 * -EINVAL if val out of range or intended mode is not supported. 5207 **/ 5208 static ssize_t 5209 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5210 const char *buf, size_t count) 5211 { 5212 struct Scsi_Host *shost = class_to_shost(dev); 5213 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5214 struct lpfc_hba *phba = vport->phba; 5215 struct lpfc_eq_intr_info *eqi; 5216 uint32_t usdelay; 5217 int val = 0, i; 5218 5219 /* fcp_imax is only valid for SLI4 */ 5220 if (phba->sli_rev != LPFC_SLI_REV4) 5221 return -EINVAL; 5222 5223 /* Sanity check on user data */ 5224 if (!isdigit(buf[0])) 5225 return -EINVAL; 5226 if (sscanf(buf, "%i", &val) != 1) 5227 return -EINVAL; 5228 5229 /* 5230 * Value range for the HBA is [5000,5000000] 5231 * The value for each EQ depends on how many EQs are configured. 5232 * Allow value == 0 5233 */ 5234 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5235 return -EINVAL; 5236 5237 phba->cfg_auto_imax = (val) ? 0 : 1; 5238 if (phba->cfg_fcp_imax && !val) { 5239 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5240 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5241 5242 for_each_present_cpu(i) { 5243 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5244 eqi->icnt = 0; 5245 } 5246 } 5247 5248 phba->cfg_fcp_imax = (uint32_t)val; 5249 5250 if (phba->cfg_fcp_imax) 5251 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5252 else 5253 usdelay = 0; 5254 5255 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5256 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5257 usdelay); 5258 5259 return strlen(buf); 5260 } 5261 5262 /* 5263 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5264 # for the HBA. 5265 # 5266 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5267 */ 5268 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5269 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5270 MODULE_PARM_DESC(lpfc_fcp_imax, 5271 "Set the maximum number of FCP interrupts per second per HBA"); 5272 lpfc_param_show(fcp_imax) 5273 5274 /** 5275 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5276 * @phba: lpfc_hba pointer. 5277 * @val: link speed value. 5278 * 5279 * Description: 5280 * If val is in a valid range [636,651042], then initialize the adapter's 5281 * maximum number of fast-path FCP interrupts per second. 5282 * 5283 * Returns: 5284 * zero if val saved. 5285 * -EINVAL val out of range 5286 **/ 5287 static int 5288 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5289 { 5290 if (phba->sli_rev != LPFC_SLI_REV4) { 5291 phba->cfg_fcp_imax = 0; 5292 return 0; 5293 } 5294 5295 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5296 (val == 0)) { 5297 phba->cfg_fcp_imax = val; 5298 return 0; 5299 } 5300 5301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5302 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5303 val); 5304 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5305 5306 return 0; 5307 } 5308 5309 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5310 5311 /** 5312 * lpfc_cq_max_proc_limit_store 5313 * 5314 * @dev: class device that is converted into a Scsi_host. 5315 * @attr: device attribute, not used. 5316 * @buf: string with the cq max processing limit of cqes 5317 * @count: unused variable. 5318 * 5319 * Description: 5320 * If val is in a valid range, then set value on each cq 5321 * 5322 * Returns: 5323 * The length of the buf: if successful 5324 * -ERANGE: if val is not in the valid range 5325 * -EINVAL: if bad value format or intended mode is not supported. 5326 **/ 5327 static ssize_t 5328 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5329 const char *buf, size_t count) 5330 { 5331 struct Scsi_Host *shost = class_to_shost(dev); 5332 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5333 struct lpfc_hba *phba = vport->phba; 5334 struct lpfc_queue *eq, *cq; 5335 unsigned long val; 5336 int i; 5337 5338 /* cq_max_proc_limit is only valid for SLI4 */ 5339 if (phba->sli_rev != LPFC_SLI_REV4) 5340 return -EINVAL; 5341 5342 /* Sanity check on user data */ 5343 if (!isdigit(buf[0])) 5344 return -EINVAL; 5345 if (kstrtoul(buf, 0, &val)) 5346 return -EINVAL; 5347 5348 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5349 return -ERANGE; 5350 5351 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5352 5353 /* set the values on the cq's */ 5354 for (i = 0; i < phba->cfg_irq_chann; i++) { 5355 /* Get the EQ corresponding to the IRQ vector */ 5356 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5357 if (!eq) 5358 continue; 5359 5360 list_for_each_entry(cq, &eq->child_list, list) 5361 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5362 cq->entry_count); 5363 } 5364 5365 return strlen(buf); 5366 } 5367 5368 /* 5369 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5370 * itteration of CQ processing. 5371 */ 5372 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5373 module_param(lpfc_cq_max_proc_limit, int, 0644); 5374 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5375 "Set the maximum number CQEs processed in an iteration of " 5376 "CQ processing"); 5377 lpfc_param_show(cq_max_proc_limit) 5378 5379 /* 5380 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5381 * single handler call which should request a polled completion rather 5382 * than re-enabling interrupts. 5383 */ 5384 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5385 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5386 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5387 "CQE Processing Threshold to enable Polling"); 5388 5389 /** 5390 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5391 * @phba: lpfc_hba pointer. 5392 * @val: entry limit 5393 * 5394 * Description: 5395 * If val is in a valid range, then initialize the adapter's maximum 5396 * value. 5397 * 5398 * Returns: 5399 * Always returns 0 for success, even if value not always set to 5400 * requested value. If value out of range or not supported, will fall 5401 * back to default. 5402 **/ 5403 static int 5404 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5405 { 5406 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5407 5408 if (phba->sli_rev != LPFC_SLI_REV4) 5409 return 0; 5410 5411 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5412 phba->cfg_cq_max_proc_limit = val; 5413 return 0; 5414 } 5415 5416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5417 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 5418 "default\n", 5419 phba->cfg_cq_max_proc_limit); 5420 5421 return 0; 5422 } 5423 5424 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5425 5426 /** 5427 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5428 * @dev: class converted to a Scsi_host structure. 5429 * @attr: device attribute, not used. 5430 * @buf: on return contains text describing the state of the link. 5431 * 5432 * Returns: size of formatted string. 5433 **/ 5434 static ssize_t 5435 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5436 char *buf) 5437 { 5438 struct Scsi_Host *shost = class_to_shost(dev); 5439 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5440 struct lpfc_hba *phba = vport->phba; 5441 struct lpfc_vector_map_info *cpup; 5442 int len = 0; 5443 5444 if ((phba->sli_rev != LPFC_SLI_REV4) || 5445 (phba->intr_type != MSIX)) 5446 return len; 5447 5448 switch (phba->cfg_fcp_cpu_map) { 5449 case 0: 5450 len += scnprintf(buf + len, PAGE_SIZE-len, 5451 "fcp_cpu_map: No mapping (%d)\n", 5452 phba->cfg_fcp_cpu_map); 5453 return len; 5454 case 1: 5455 len += scnprintf(buf + len, PAGE_SIZE-len, 5456 "fcp_cpu_map: HBA centric mapping (%d): " 5457 "%d of %d CPUs online from %d possible CPUs\n", 5458 phba->cfg_fcp_cpu_map, num_online_cpus(), 5459 num_present_cpus(), 5460 phba->sli4_hba.num_possible_cpu); 5461 break; 5462 } 5463 5464 while (phba->sli4_hba.curr_disp_cpu < 5465 phba->sli4_hba.num_possible_cpu) { 5466 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5467 5468 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5469 len += scnprintf(buf + len, PAGE_SIZE - len, 5470 "CPU %02d not present\n", 5471 phba->sli4_hba.curr_disp_cpu); 5472 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5473 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5474 len += scnprintf( 5475 buf + len, PAGE_SIZE - len, 5476 "CPU %02d hdwq None " 5477 "physid %d coreid %d ht %d ua %d\n", 5478 phba->sli4_hba.curr_disp_cpu, 5479 cpup->phys_id, cpup->core_id, 5480 (cpup->flag & LPFC_CPU_MAP_HYPER), 5481 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5482 else 5483 len += scnprintf( 5484 buf + len, PAGE_SIZE - len, 5485 "CPU %02d EQ None hdwq %04d " 5486 "physid %d coreid %d ht %d ua %d\n", 5487 phba->sli4_hba.curr_disp_cpu, 5488 cpup->hdwq, cpup->phys_id, 5489 cpup->core_id, 5490 (cpup->flag & LPFC_CPU_MAP_HYPER), 5491 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5492 } else { 5493 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5494 len += scnprintf( 5495 buf + len, PAGE_SIZE - len, 5496 "CPU %02d hdwq None " 5497 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5498 phba->sli4_hba.curr_disp_cpu, 5499 cpup->phys_id, 5500 cpup->core_id, 5501 (cpup->flag & LPFC_CPU_MAP_HYPER), 5502 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5503 lpfc_get_irq(cpup->eq)); 5504 else 5505 len += scnprintf( 5506 buf + len, PAGE_SIZE - len, 5507 "CPU %02d EQ %04d hdwq %04d " 5508 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5509 phba->sli4_hba.curr_disp_cpu, 5510 cpup->eq, cpup->hdwq, cpup->phys_id, 5511 cpup->core_id, 5512 (cpup->flag & LPFC_CPU_MAP_HYPER), 5513 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5514 lpfc_get_irq(cpup->eq)); 5515 } 5516 5517 phba->sli4_hba.curr_disp_cpu++; 5518 5519 /* display max number of CPUs keeping some margin */ 5520 if (phba->sli4_hba.curr_disp_cpu < 5521 phba->sli4_hba.num_possible_cpu && 5522 (len >= (PAGE_SIZE - 64))) { 5523 len += scnprintf(buf + len, 5524 PAGE_SIZE - len, "more...\n"); 5525 break; 5526 } 5527 } 5528 5529 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5530 phba->sli4_hba.curr_disp_cpu = 0; 5531 5532 return len; 5533 } 5534 5535 /** 5536 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5537 * @dev: class device that is converted into a Scsi_host. 5538 * @attr: device attribute, not used. 5539 * @buf: one or more lpfc_polling_flags values. 5540 * @count: not used. 5541 * 5542 * Returns: 5543 * -EINVAL - Not implemented yet. 5544 **/ 5545 static ssize_t 5546 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5547 const char *buf, size_t count) 5548 { 5549 return -EINVAL; 5550 } 5551 5552 /* 5553 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5554 # for the HBA. 5555 # 5556 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5557 # 0 - Do not affinitze IRQ vectors 5558 # 1 - Affintize HBA vectors with respect to each HBA 5559 # (start with CPU0 for each HBA) 5560 # This also defines how Hardware Queues are mapped to specific CPUs. 5561 */ 5562 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5563 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5564 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5565 "Defines how to map CPUs to IRQ vectors per HBA"); 5566 5567 /** 5568 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5569 * @phba: lpfc_hba pointer. 5570 * @val: link speed value. 5571 * 5572 * Description: 5573 * If val is in a valid range [0-2], then affinitze the adapter's 5574 * MSIX vectors. 5575 * 5576 * Returns: 5577 * zero if val saved. 5578 * -EINVAL val out of range 5579 **/ 5580 static int 5581 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5582 { 5583 if (phba->sli_rev != LPFC_SLI_REV4) { 5584 phba->cfg_fcp_cpu_map = 0; 5585 return 0; 5586 } 5587 5588 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5589 phba->cfg_fcp_cpu_map = val; 5590 return 0; 5591 } 5592 5593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5594 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5595 "default\n", val); 5596 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5597 5598 return 0; 5599 } 5600 5601 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5602 5603 /* 5604 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5605 # Value range is [2,3]. Default value is 3. 5606 */ 5607 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5608 "Select Fibre Channel class of service for FCP sequences"); 5609 5610 /* 5611 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5612 # is [0,1]. Default value is 1. 5613 */ 5614 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5615 "Use ADISC on rediscovery to authenticate FCP devices"); 5616 5617 /* 5618 # lpfc_first_burst_size: First burst size to use on the NPorts 5619 # that support first burst. 5620 # Value range is [0,65536]. Default value is 0. 5621 */ 5622 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5623 "First burst size for Targets that support first burst"); 5624 5625 /* 5626 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5627 * When the driver is configured as an NVME target, this value is 5628 * communicated to the NVME initiator in the PRLI response. It is 5629 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5630 * parameters are set and the target is sending the PRLI RSP. 5631 * Parameter supported on physical port only - no NPIV support. 5632 * Value range is [0,65536]. Default value is 0. 5633 */ 5634 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5635 "NVME Target mode first burst size in 512B increments."); 5636 5637 /* 5638 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5639 * For the Initiator (I), enabling this parameter means that an NVMET 5640 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5641 * processed by the initiator for subsequent NVME FCP IO. 5642 * Currently, this feature is not supported on the NVME target 5643 * Value range is [0,1]. Default value is 0 (disabled). 5644 */ 5645 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5646 "Enable First Burst feature for NVME Initiator."); 5647 5648 /* 5649 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5650 # depth. Default value is 0. When the value of this parameter is zero the 5651 # SCSI command completion time is not used for controlling I/O queue depth. When 5652 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5653 # to limit the I/O completion time to the parameter value. 5654 # The value is set in milliseconds. 5655 */ 5656 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5657 "Use command completion time to control queue depth"); 5658 5659 lpfc_vport_param_show(max_scsicmpl_time); 5660 static int 5661 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5662 { 5663 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5664 struct lpfc_nodelist *ndlp, *next_ndlp; 5665 5666 if (val == vport->cfg_max_scsicmpl_time) 5667 return 0; 5668 if ((val < 0) || (val > 60000)) 5669 return -EINVAL; 5670 vport->cfg_max_scsicmpl_time = val; 5671 5672 spin_lock_irq(shost->host_lock); 5673 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5674 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5675 continue; 5676 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5677 } 5678 spin_unlock_irq(shost->host_lock); 5679 return 0; 5680 } 5681 lpfc_vport_param_store(max_scsicmpl_time); 5682 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5683 5684 /* 5685 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5686 # range is [0,1]. Default value is 0. 5687 */ 5688 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5689 5690 /* 5691 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5692 # range is [0,1]. Default value is 1. 5693 */ 5694 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5695 5696 /* 5697 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5698 * range is [0,1]. Default value is 0. 5699 * For [0], FCP commands are issued to Work Queues based on upper layer 5700 * hardware queue index. 5701 * For [1], FCP commands are issued to a Work Queue associated with the 5702 * current CPU. 5703 * 5704 * LPFC_FCP_SCHED_BY_HDWQ == 0 5705 * LPFC_FCP_SCHED_BY_CPU == 1 5706 * 5707 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5708 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5709 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5710 * through WQs will be used. 5711 */ 5712 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5713 LPFC_FCP_SCHED_BY_HDWQ, 5714 LPFC_FCP_SCHED_BY_CPU, 5715 "Determine scheduling algorithm for " 5716 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5717 5718 /* 5719 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5720 * range is [0,1]. Default value is 0. 5721 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5722 * For [1], GID_PT is used for NameServer queries after RSCN 5723 * 5724 */ 5725 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5726 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5727 "Determine algorithm NameServer queries after RSCN " 5728 "[0] - GID_FT, [1] - GID_PT"); 5729 5730 /* 5731 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5732 # range is [0,1]. Default value is 0. 5733 # For [0], bus reset issues target reset to ALL devices 5734 # For [1], bus reset issues target reset to non-FCP2 devices 5735 */ 5736 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5737 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5738 5739 5740 /* 5741 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5742 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5743 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5744 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5745 # cr_delay is set to 0. 5746 */ 5747 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5748 "interrupt response is generated"); 5749 5750 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5751 "interrupt response is generated"); 5752 5753 /* 5754 # lpfc_multi_ring_support: Determines how many rings to spread available 5755 # cmd/rsp IOCB entries across. 5756 # Value range is [1,2]. Default value is 1. 5757 */ 5758 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5759 "SLI rings to spread IOCB entries across"); 5760 5761 /* 5762 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5763 # identifies what rctl value to configure the additional ring for. 5764 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5765 */ 5766 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5767 255, "Identifies RCTL for additional ring configuration"); 5768 5769 /* 5770 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5771 # identifies what type value to configure the additional ring for. 5772 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5773 */ 5774 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5775 255, "Identifies TYPE for additional ring configuration"); 5776 5777 /* 5778 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5779 # 0 = SmartSAN functionality disabled (default) 5780 # 1 = SmartSAN functionality enabled 5781 # This parameter will override the value of lpfc_fdmi_on module parameter. 5782 # Value range is [0,1]. Default value is 0. 5783 */ 5784 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5785 5786 /* 5787 # lpfc_fdmi_on: Controls FDMI support. 5788 # 0 No FDMI support 5789 # 1 Traditional FDMI support (default) 5790 # Traditional FDMI support means the driver will assume FDMI-2 support; 5791 # however, if that fails, it will fallback to FDMI-1. 5792 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5793 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5794 # lpfc_fdmi_on. 5795 # Value range [0,1]. Default value is 1. 5796 */ 5797 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5798 5799 /* 5800 # Specifies the maximum number of ELS cmds we can have outstanding (for 5801 # discovery). Value range is [1,64]. Default value = 32. 5802 */ 5803 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5804 "during discovery"); 5805 5806 /* 5807 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5808 # will be scanned by the SCSI midlayer when sequential scanning is 5809 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5810 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5811 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5812 # above. The lpfc driver limits the default value to 255 for two reasons. 5813 # As it bounds the sequential scan loop, scanning for thousands of luns 5814 # on a target can take minutes of wall clock time. Additionally, 5815 # there are FC targets, such as JBODs, that only recognize 8-bits of 5816 # LUN ID. When they receive a value greater than 8 bits, they chop off 5817 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5818 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5819 # valid responses at each of the LUN IDs, to believe there are multiple 5820 # devices present, when in fact, there is only 1. 5821 # A customer that is aware of their target behaviors, and the results as 5822 # indicated above, is welcome to increase the lpfc_max_luns value. 5823 # As mentioned, this value is not used by the lpfc driver, only the 5824 # SCSI midlayer. 5825 # Value range is [0,65535]. Default value is 255. 5826 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5827 */ 5828 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5829 5830 /* 5831 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5832 # Value range is [1,255], default value is 10. 5833 */ 5834 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5835 "Milliseconds driver will wait between polling FCP ring"); 5836 5837 /* 5838 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5839 # to complete in seconds. Value range is [5,180], default value is 60. 5840 */ 5841 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5842 "Maximum time to wait for task management commands to complete"); 5843 /* 5844 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5845 # support this feature 5846 # 0 = MSI disabled 5847 # 1 = MSI enabled 5848 # 2 = MSI-X enabled (default) 5849 # Value range is [0,2]. Default value is 2. 5850 */ 5851 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5852 "MSI-X (2), if possible"); 5853 5854 /* 5855 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5856 * 5857 * 0 = NVME OAS disabled 5858 * 1 = NVME OAS enabled 5859 * 5860 * Value range is [0,1]. Default value is 0. 5861 */ 5862 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5863 "Use OAS bit on NVME IOs"); 5864 5865 /* 5866 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5867 * 5868 * 0 = Put NVME Command in SGL 5869 * 1 = Embed NVME Command in WQE (unless G7) 5870 * 2 = Embed NVME Command in WQE (force) 5871 * 5872 * Value range is [0,2]. Default value is 1. 5873 */ 5874 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5875 "Embed NVME Command in WQE"); 5876 5877 /* 5878 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5879 * the driver will advertise it supports to the SCSI layer. 5880 * 5881 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5882 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5883 * 5884 * Value range is [0,256]. Default value is 8. 5885 */ 5886 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5887 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5888 "Set the number of SCSI Queues advertised"); 5889 5890 /* 5891 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5892 * will advertise it supports to the NVME and SCSI layers. This also 5893 * will map to the number of CQ/WQ pairs the driver will create. 5894 * 5895 * The NVME Layer will try to create this many, plus 1 administrative 5896 * hardware queue. The administrative queue will always map to WQ 0 5897 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5898 * 5899 * 0 = Configure the number of hdw queues to the number of active CPUs. 5900 * 1,256 = Manually specify how many hdw queues to use. 5901 * 5902 * Value range is [0,256]. Default value is 0. 5903 */ 5904 LPFC_ATTR_R(hdw_queue, 5905 LPFC_HBA_HDWQ_DEF, 5906 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5907 "Set the number of I/O Hardware Queues"); 5908 5909 #if IS_ENABLED(CONFIG_X86) 5910 /** 5911 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5912 * irq_chann_mode 5913 * @phba: Pointer to HBA context object. 5914 **/ 5915 static void 5916 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5917 { 5918 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5919 const struct cpumask *sibling_mask; 5920 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5921 5922 cpumask_clear(aff_mask); 5923 5924 if (phba->irq_chann_mode == NUMA_MODE) { 5925 /* Check if we're a NUMA architecture */ 5926 numa_node = dev_to_node(&phba->pcidev->dev); 5927 if (numa_node == NUMA_NO_NODE) { 5928 phba->irq_chann_mode = NORMAL_MODE; 5929 return; 5930 } 5931 } 5932 5933 for_each_possible_cpu(cpu) { 5934 switch (phba->irq_chann_mode) { 5935 case NUMA_MODE: 5936 if (cpu_to_node(cpu) == numa_node) 5937 cpumask_set_cpu(cpu, aff_mask); 5938 break; 5939 case NHT_MODE: 5940 sibling_mask = topology_sibling_cpumask(cpu); 5941 first_cpu = cpumask_first(sibling_mask); 5942 if (first_cpu < nr_cpu_ids) 5943 cpumask_set_cpu(first_cpu, aff_mask); 5944 break; 5945 default: 5946 break; 5947 } 5948 } 5949 } 5950 #endif 5951 5952 static void 5953 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5954 { 5955 #if IS_ENABLED(CONFIG_X86) 5956 switch (boot_cpu_data.x86_vendor) { 5957 case X86_VENDOR_AMD: 5958 /* If AMD architecture, then default is NUMA_MODE */ 5959 phba->irq_chann_mode = NUMA_MODE; 5960 break; 5961 case X86_VENDOR_INTEL: 5962 /* If Intel architecture, then default is no hyperthread mode */ 5963 phba->irq_chann_mode = NHT_MODE; 5964 break; 5965 default: 5966 phba->irq_chann_mode = NORMAL_MODE; 5967 break; 5968 } 5969 lpfc_cpumask_irq_mode_init(phba); 5970 #else 5971 phba->irq_chann_mode = NORMAL_MODE; 5972 #endif 5973 } 5974 5975 /* 5976 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5977 * for Hardware Queues to utilize. This also will map to the number 5978 * of EQ / MSI-X vectors the driver will create. This should never be 5979 * more than the number of Hardware Queues 5980 * 5981 * 0 = Configure number of IRQ Channels to: 5982 * if AMD architecture, number of CPUs on HBA's NUMA node 5983 * if Intel architecture, number of physical CPUs. 5984 * otherwise, number of active CPUs. 5985 * [1,256] = Manually specify how many IRQ Channels to use. 5986 * 5987 * Value range is [0,256]. Default value is [0]. 5988 */ 5989 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5990 module_param(lpfc_irq_chann, uint, 0444); 5991 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5992 5993 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5994 * @phba: lpfc_hba pointer. 5995 * @val: contains the initial value 5996 * 5997 * Description: 5998 * Validates the initial value is within range and assigns it to the 5999 * adapter. If not in range, an error message is posted and the 6000 * default value is assigned. 6001 * 6002 * Returns: 6003 * zero if value is in range and is set 6004 * -EINVAL if value was out of range 6005 **/ 6006 static int 6007 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 6008 { 6009 const struct cpumask *aff_mask; 6010 6011 if (phba->cfg_use_msi != 2) { 6012 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6013 "8532 use_msi = %u ignoring cfg_irq_numa\n", 6014 phba->cfg_use_msi); 6015 phba->irq_chann_mode = NORMAL_MODE; 6016 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6017 return 0; 6018 } 6019 6020 /* Check if default setting was passed */ 6021 if (val == LPFC_IRQ_CHANN_DEF && 6022 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 6023 phba->sli_rev == LPFC_SLI_REV4) 6024 lpfc_assign_default_irq_chann(phba); 6025 6026 if (phba->irq_chann_mode != NORMAL_MODE) { 6027 aff_mask = &phba->sli4_hba.irq_aff_mask; 6028 6029 if (cpumask_empty(aff_mask)) { 6030 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6031 "8533 Could not identify CPUS for " 6032 "mode %d, ignoring\n", 6033 phba->irq_chann_mode); 6034 phba->irq_chann_mode = NORMAL_MODE; 6035 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6036 } else { 6037 phba->cfg_irq_chann = cpumask_weight(aff_mask); 6038 6039 /* If no hyperthread mode, then set hdwq count to 6040 * aff_mask weight as well 6041 */ 6042 if (phba->irq_chann_mode == NHT_MODE) 6043 phba->cfg_hdw_queue = phba->cfg_irq_chann; 6044 6045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6046 "8543 lpfc_irq_chann set to %u " 6047 "(mode: %d)\n", phba->cfg_irq_chann, 6048 phba->irq_chann_mode); 6049 } 6050 } else { 6051 if (val > LPFC_IRQ_CHANN_MAX) { 6052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6053 "8545 lpfc_irq_chann attribute cannot " 6054 "be set to %u, allowed range is " 6055 "[%u,%u]\n", 6056 val, 6057 LPFC_IRQ_CHANN_MIN, 6058 LPFC_IRQ_CHANN_MAX); 6059 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6060 return -EINVAL; 6061 } 6062 if (phba->sli_rev == LPFC_SLI_REV4) { 6063 phba->cfg_irq_chann = val; 6064 } else { 6065 phba->cfg_irq_chann = 2; 6066 phba->cfg_hdw_queue = 1; 6067 } 6068 } 6069 6070 return 0; 6071 } 6072 6073 /** 6074 * lpfc_irq_chann_show - Display value of irq_chann 6075 * @dev: class converted to a Scsi_host structure. 6076 * @attr: device attribute, not used. 6077 * @buf: on return contains a string with the list sizes 6078 * 6079 * Returns: size of formatted string. 6080 **/ 6081 static ssize_t 6082 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 6083 char *buf) 6084 { 6085 struct Scsi_Host *shost = class_to_shost(dev); 6086 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6087 struct lpfc_hba *phba = vport->phba; 6088 6089 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 6090 } 6091 6092 static DEVICE_ATTR_RO(lpfc_irq_chann); 6093 6094 /* 6095 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 6096 # 0 = HBA resets disabled 6097 # 1 = HBA resets enabled (default) 6098 # 2 = HBA reset via PCI bus reset enabled 6099 # Value range is [0,2]. Default value is 1. 6100 */ 6101 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 6102 6103 /* 6104 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 6105 # 0 = HBA Heartbeat disabled 6106 # 1 = HBA Heartbeat enabled (default) 6107 # Value range is [0,1]. Default value is 1. 6108 */ 6109 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 6110 6111 /* 6112 # lpfc_EnableXLane: Enable Express Lane Feature 6113 # 0x0 Express Lane Feature disabled 6114 # 0x1 Express Lane Feature enabled 6115 # Value range is [0,1]. Default value is 0. 6116 */ 6117 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 6118 6119 /* 6120 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 6121 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 6122 # Value range is [0x0,0x7f]. Default value is 0 6123 */ 6124 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 6125 6126 /* 6127 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 6128 # 0 = BlockGuard disabled (default) 6129 # 1 = BlockGuard enabled 6130 # Value range is [0,1]. Default value is 0. 6131 */ 6132 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 6133 6134 /* 6135 # lpfc_prot_mask: 6136 # - Bit mask of host protection capabilities used to register with the 6137 # SCSI mid-layer 6138 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 6139 # - Allows you to ultimately specify which profiles to use 6140 # - Default will result in registering capabilities for all profiles. 6141 # - SHOST_DIF_TYPE1_PROTECTION 1 6142 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 6143 # - SHOST_DIX_TYPE0_PROTECTION 8 6144 # HBA supports DIX Type 0: Host to HBA protection only 6145 # - SHOST_DIX_TYPE1_PROTECTION 16 6146 # HBA supports DIX Type 1: Host to HBA Type 1 protection 6147 # 6148 */ 6149 LPFC_ATTR(prot_mask, 6150 (SHOST_DIF_TYPE1_PROTECTION | 6151 SHOST_DIX_TYPE0_PROTECTION | 6152 SHOST_DIX_TYPE1_PROTECTION), 6153 0, 6154 (SHOST_DIF_TYPE1_PROTECTION | 6155 SHOST_DIX_TYPE0_PROTECTION | 6156 SHOST_DIX_TYPE1_PROTECTION), 6157 "T10-DIF host protection capabilities mask"); 6158 6159 /* 6160 # lpfc_prot_guard: 6161 # - Bit mask of protection guard types to register with the SCSI mid-layer 6162 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 6163 # - Allows you to ultimately specify which profiles to use 6164 # - Default will result in registering capabilities for all guard types 6165 # 6166 */ 6167 LPFC_ATTR(prot_guard, 6168 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 6169 "T10-DIF host protection guard type"); 6170 6171 /* 6172 * Delay initial NPort discovery when Clean Address bit is cleared in 6173 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 6174 * This parameter can have value 0 or 1. 6175 * When this parameter is set to 0, no delay is added to the initial 6176 * discovery. 6177 * When this parameter is set to non-zero value, initial Nport discovery is 6178 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 6179 * accept and FCID/Fabric name/Fabric portname is changed. 6180 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 6181 * when Clean Address bit is cleared in FLOGI/FDISC 6182 * accept and FCID/Fabric name/Fabric portname is changed. 6183 * Default value is 0. 6184 */ 6185 LPFC_ATTR(delay_discovery, 0, 0, 1, 6186 "Delay NPort discovery when Clean Address bit is cleared."); 6187 6188 /* 6189 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 6190 * This value can be set to values between 64 and 4096. The default value 6191 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 6192 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 6193 * Because of the additional overhead involved in setting up T10-DIF, 6194 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 6195 * and will be limited to 512 if BlockGuard is enabled under SLI3. 6196 */ 6197 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6198 module_param(lpfc_sg_seg_cnt, uint, 0444); 6199 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 6200 6201 /** 6202 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 6203 * configured for the adapter 6204 * @dev: class converted to a Scsi_host structure. 6205 * @attr: device attribute, not used. 6206 * @buf: on return contains a string with the list sizes 6207 * 6208 * Returns: size of formatted string. 6209 **/ 6210 static ssize_t 6211 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6212 char *buf) 6213 { 6214 struct Scsi_Host *shost = class_to_shost(dev); 6215 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6216 struct lpfc_hba *phba = vport->phba; 6217 int len; 6218 6219 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6220 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6221 6222 len += scnprintf(buf + len, PAGE_SIZE - len, 6223 "Cfg: %d SCSI: %d NVME: %d\n", 6224 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6225 phba->cfg_nvme_seg_cnt); 6226 return len; 6227 } 6228 6229 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6230 6231 /** 6232 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6233 * @phba: lpfc_hba pointer. 6234 * @val: contains the initial value 6235 * 6236 * Description: 6237 * Validates the initial value is within range and assigns it to the 6238 * adapter. If not in range, an error message is posted and the 6239 * default value is assigned. 6240 * 6241 * Returns: 6242 * zero if value is in range and is set 6243 * -EINVAL if value was out of range 6244 **/ 6245 static int 6246 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6247 { 6248 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6249 phba->cfg_sg_seg_cnt = val; 6250 return 0; 6251 } 6252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6253 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 6254 "allowed range is [%d, %d]\n", 6255 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6256 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6257 return -EINVAL; 6258 } 6259 6260 /* 6261 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6262 * 0 = MDS Diagnostics disabled (default) 6263 * 1 = MDS Diagnostics enabled 6264 * Value range is [0,1]. Default value is 0. 6265 */ 6266 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6267 6268 /* 6269 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6270 * 0 = Disable firmware logging (default) 6271 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6272 * Value range [0..4]. Default value is 0 6273 */ 6274 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6275 lpfc_param_show(ras_fwlog_buffsize); 6276 6277 static ssize_t 6278 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6279 { 6280 int ret = 0; 6281 enum ras_state state; 6282 6283 if (!lpfc_rangecheck(val, 0, 4)) 6284 return -EINVAL; 6285 6286 if (phba->cfg_ras_fwlog_buffsize == val) 6287 return 0; 6288 6289 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6290 return -EINVAL; 6291 6292 spin_lock_irq(&phba->hbalock); 6293 state = phba->ras_fwlog.state; 6294 spin_unlock_irq(&phba->hbalock); 6295 6296 if (state == REG_INPROGRESS) { 6297 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6298 "registration is in progress\n"); 6299 return -EBUSY; 6300 } 6301 6302 /* For disable logging: stop the logs and free the DMA. 6303 * For ras_fwlog_buffsize size change we still need to free and 6304 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6305 */ 6306 phba->cfg_ras_fwlog_buffsize = val; 6307 if (state == ACTIVE) { 6308 lpfc_ras_stop_fwlog(phba); 6309 lpfc_sli4_ras_dma_free(phba); 6310 } 6311 6312 lpfc_sli4_ras_init(phba); 6313 if (phba->ras_fwlog.ras_enabled) 6314 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6315 LPFC_RAS_ENABLE_LOGGING); 6316 return ret; 6317 } 6318 6319 lpfc_param_store(ras_fwlog_buffsize); 6320 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6321 6322 /* 6323 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6324 * Valid only if firmware logging is enabled 6325 * 0(Least Verbosity) 4 (most verbosity) 6326 * Value range is [0..4]. Default value is 0 6327 */ 6328 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6329 6330 /* 6331 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6332 * Default function which has RAS support : 0 6333 * Value Range is [0..7]. 6334 * FW logging is a global action and enablement is via a specific 6335 * port. 6336 */ 6337 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6338 6339 /* 6340 * lpfc_enable_bbcr: Enable BB Credit Recovery 6341 * 0 = BB Credit Recovery disabled 6342 * 1 = BB Credit Recovery enabled (default) 6343 * Value range is [0,1]. Default value is 1. 6344 */ 6345 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6346 6347 /* Signaling module parameters */ 6348 int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 6349 module_param(lpfc_fabric_cgn_frequency, int, 0444); 6350 MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 6351 6352 int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 6353 module_param(lpfc_acqe_cgn_frequency, int, 0444); 6354 MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 6355 6356 int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 6357 module_param(lpfc_use_cgn_signal, int, 0444); 6358 MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 6359 6360 /* 6361 * lpfc_enable_dpp: Enable DPP on G7 6362 * 0 = DPP on G7 disabled 6363 * 1 = DPP on G7 enabled (default) 6364 * Value range is [0,1]. Default value is 1. 6365 */ 6366 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6367 6368 /* 6369 * lpfc_enable_mi: Enable FDMI MIB 6370 * 0 = disabled 6371 * 1 = enabled (default) 6372 * Value range is [0,1]. 6373 */ 6374 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6375 6376 /* 6377 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 6378 * either vmid_app_header or vmid_priority_tagging is enabled. 6379 * 4 - 255 = vmid support enabled for 4-255 VMs 6380 * Value range is [4,255]. 6381 */ 6382 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 6383 "Maximum number of VMs supported"); 6384 6385 /* 6386 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 6387 * 0 = Timeout is disabled 6388 * Value range is [0,24]. 6389 */ 6390 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 6391 "Inactivity timeout in hours"); 6392 6393 /* 6394 * lpfc_vmid_app_header: Enable App Header VMID support 6395 * 0 = Support is disabled (default) 6396 * 1 = Support is enabled 6397 * Value range is [0,1]. 6398 */ 6399 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 6400 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 6401 "Enable App Header VMID support"); 6402 6403 /* 6404 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 6405 * 0 = Support is disabled (default) 6406 * 1 = Allow supported targets only 6407 * 2 = Allow all targets 6408 * Value range is [0,2]. 6409 */ 6410 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 6411 LPFC_VMID_PRIO_TAG_DISABLE, 6412 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 6413 "Enable Priority Tagging VMID support"); 6414 6415 static struct attribute *lpfc_hba_attrs[] = { 6416 &dev_attr_nvme_info.attr, 6417 &dev_attr_scsi_stat.attr, 6418 &dev_attr_bg_info.attr, 6419 &dev_attr_bg_guard_err.attr, 6420 &dev_attr_bg_apptag_err.attr, 6421 &dev_attr_bg_reftag_err.attr, 6422 &dev_attr_info.attr, 6423 &dev_attr_serialnum.attr, 6424 &dev_attr_modeldesc.attr, 6425 &dev_attr_modelname.attr, 6426 &dev_attr_programtype.attr, 6427 &dev_attr_portnum.attr, 6428 &dev_attr_fwrev.attr, 6429 &dev_attr_hdw.attr, 6430 &dev_attr_option_rom_version.attr, 6431 &dev_attr_link_state.attr, 6432 &dev_attr_num_discovered_ports.attr, 6433 &dev_attr_menlo_mgmt_mode.attr, 6434 &dev_attr_lpfc_drvr_version.attr, 6435 &dev_attr_lpfc_enable_fip.attr, 6436 &dev_attr_lpfc_temp_sensor.attr, 6437 &dev_attr_lpfc_log_verbose.attr, 6438 &dev_attr_lpfc_lun_queue_depth.attr, 6439 &dev_attr_lpfc_tgt_queue_depth.attr, 6440 &dev_attr_lpfc_hba_queue_depth.attr, 6441 &dev_attr_lpfc_peer_port_login.attr, 6442 &dev_attr_lpfc_nodev_tmo.attr, 6443 &dev_attr_lpfc_devloss_tmo.attr, 6444 &dev_attr_lpfc_enable_fc4_type.attr, 6445 &dev_attr_lpfc_fcp_class.attr, 6446 &dev_attr_lpfc_use_adisc.attr, 6447 &dev_attr_lpfc_first_burst_size.attr, 6448 &dev_attr_lpfc_ack0.attr, 6449 &dev_attr_lpfc_xri_rebalancing.attr, 6450 &dev_attr_lpfc_topology.attr, 6451 &dev_attr_lpfc_scan_down.attr, 6452 &dev_attr_lpfc_link_speed.attr, 6453 &dev_attr_lpfc_fcp_io_sched.attr, 6454 &dev_attr_lpfc_ns_query.attr, 6455 &dev_attr_lpfc_fcp2_no_tgt_reset.attr, 6456 &dev_attr_lpfc_cr_delay.attr, 6457 &dev_attr_lpfc_cr_count.attr, 6458 &dev_attr_lpfc_multi_ring_support.attr, 6459 &dev_attr_lpfc_multi_ring_rctl.attr, 6460 &dev_attr_lpfc_multi_ring_type.attr, 6461 &dev_attr_lpfc_fdmi_on.attr, 6462 &dev_attr_lpfc_enable_SmartSAN.attr, 6463 &dev_attr_lpfc_max_luns.attr, 6464 &dev_attr_lpfc_enable_npiv.attr, 6465 &dev_attr_lpfc_fcf_failover_policy.attr, 6466 &dev_attr_lpfc_enable_rrq.attr, 6467 &dev_attr_lpfc_fcp_wait_abts_rsp.attr, 6468 &dev_attr_nport_evt_cnt.attr, 6469 &dev_attr_board_mode.attr, 6470 &dev_attr_max_vpi.attr, 6471 &dev_attr_used_vpi.attr, 6472 &dev_attr_max_rpi.attr, 6473 &dev_attr_used_rpi.attr, 6474 &dev_attr_max_xri.attr, 6475 &dev_attr_used_xri.attr, 6476 &dev_attr_npiv_info.attr, 6477 &dev_attr_issue_reset.attr, 6478 &dev_attr_lpfc_poll.attr, 6479 &dev_attr_lpfc_poll_tmo.attr, 6480 &dev_attr_lpfc_task_mgmt_tmo.attr, 6481 &dev_attr_lpfc_use_msi.attr, 6482 &dev_attr_lpfc_nvme_oas.attr, 6483 &dev_attr_lpfc_nvme_embed_cmd.attr, 6484 &dev_attr_lpfc_fcp_imax.attr, 6485 &dev_attr_lpfc_force_rscn.attr, 6486 &dev_attr_lpfc_cq_poll_threshold.attr, 6487 &dev_attr_lpfc_cq_max_proc_limit.attr, 6488 &dev_attr_lpfc_fcp_cpu_map.attr, 6489 &dev_attr_lpfc_fcp_mq_threshold.attr, 6490 &dev_attr_lpfc_hdw_queue.attr, 6491 &dev_attr_lpfc_irq_chann.attr, 6492 &dev_attr_lpfc_suppress_rsp.attr, 6493 &dev_attr_lpfc_nvmet_mrq.attr, 6494 &dev_attr_lpfc_nvmet_mrq_post.attr, 6495 &dev_attr_lpfc_nvme_enable_fb.attr, 6496 &dev_attr_lpfc_nvmet_fb_size.attr, 6497 &dev_attr_lpfc_enable_bg.attr, 6498 &dev_attr_lpfc_soft_wwnn.attr, 6499 &dev_attr_lpfc_soft_wwpn.attr, 6500 &dev_attr_lpfc_soft_wwn_enable.attr, 6501 &dev_attr_lpfc_enable_hba_reset.attr, 6502 &dev_attr_lpfc_enable_hba_heartbeat.attr, 6503 &dev_attr_lpfc_EnableXLane.attr, 6504 &dev_attr_lpfc_XLanePriority.attr, 6505 &dev_attr_lpfc_xlane_lun.attr, 6506 &dev_attr_lpfc_xlane_tgt.attr, 6507 &dev_attr_lpfc_xlane_vpt.attr, 6508 &dev_attr_lpfc_xlane_lun_state.attr, 6509 &dev_attr_lpfc_xlane_lun_status.attr, 6510 &dev_attr_lpfc_xlane_priority.attr, 6511 &dev_attr_lpfc_sg_seg_cnt.attr, 6512 &dev_attr_lpfc_max_scsicmpl_time.attr, 6513 &dev_attr_lpfc_stat_data_ctrl.attr, 6514 &dev_attr_lpfc_aer_support.attr, 6515 &dev_attr_lpfc_aer_state_cleanup.attr, 6516 &dev_attr_lpfc_sriov_nr_virtfn.attr, 6517 &dev_attr_lpfc_req_fw_upgrade.attr, 6518 &dev_attr_lpfc_suppress_link_up.attr, 6519 &dev_attr_iocb_hw.attr, 6520 &dev_attr_pls.attr, 6521 &dev_attr_pt.attr, 6522 &dev_attr_txq_hw.attr, 6523 &dev_attr_txcmplq_hw.attr, 6524 &dev_attr_lpfc_sriov_hw_max_virtfn.attr, 6525 &dev_attr_protocol.attr, 6526 &dev_attr_lpfc_xlane_supported.attr, 6527 &dev_attr_lpfc_enable_mds_diags.attr, 6528 &dev_attr_lpfc_ras_fwlog_buffsize.attr, 6529 &dev_attr_lpfc_ras_fwlog_level.attr, 6530 &dev_attr_lpfc_ras_fwlog_func.attr, 6531 &dev_attr_lpfc_enable_bbcr.attr, 6532 &dev_attr_lpfc_enable_dpp.attr, 6533 &dev_attr_lpfc_enable_mi.attr, 6534 &dev_attr_cmf_info.attr, 6535 &dev_attr_lpfc_max_vmid.attr, 6536 &dev_attr_lpfc_vmid_inactivity_timeout.attr, 6537 &dev_attr_lpfc_vmid_app_header.attr, 6538 &dev_attr_lpfc_vmid_priority_tagging.attr, 6539 NULL, 6540 }; 6541 6542 static const struct attribute_group lpfc_hba_attr_group = { 6543 .attrs = lpfc_hba_attrs 6544 }; 6545 6546 const struct attribute_group *lpfc_hba_groups[] = { 6547 &lpfc_hba_attr_group, 6548 NULL 6549 }; 6550 6551 static struct attribute *lpfc_vport_attrs[] = { 6552 &dev_attr_info.attr, 6553 &dev_attr_link_state.attr, 6554 &dev_attr_num_discovered_ports.attr, 6555 &dev_attr_lpfc_drvr_version.attr, 6556 &dev_attr_lpfc_log_verbose.attr, 6557 &dev_attr_lpfc_lun_queue_depth.attr, 6558 &dev_attr_lpfc_tgt_queue_depth.attr, 6559 &dev_attr_lpfc_nodev_tmo.attr, 6560 &dev_attr_lpfc_devloss_tmo.attr, 6561 &dev_attr_lpfc_hba_queue_depth.attr, 6562 &dev_attr_lpfc_peer_port_login.attr, 6563 &dev_attr_lpfc_restrict_login.attr, 6564 &dev_attr_lpfc_fcp_class.attr, 6565 &dev_attr_lpfc_use_adisc.attr, 6566 &dev_attr_lpfc_first_burst_size.attr, 6567 &dev_attr_lpfc_max_luns.attr, 6568 &dev_attr_nport_evt_cnt.attr, 6569 &dev_attr_npiv_info.attr, 6570 &dev_attr_lpfc_enable_da_id.attr, 6571 &dev_attr_lpfc_max_scsicmpl_time.attr, 6572 &dev_attr_lpfc_stat_data_ctrl.attr, 6573 &dev_attr_lpfc_static_vport.attr, 6574 &dev_attr_cmf_info.attr, 6575 NULL, 6576 }; 6577 6578 static const struct attribute_group lpfc_vport_attr_group = { 6579 .attrs = lpfc_vport_attrs 6580 }; 6581 6582 const struct attribute_group *lpfc_vport_groups[] = { 6583 &lpfc_vport_attr_group, 6584 NULL 6585 }; 6586 6587 /** 6588 * sysfs_ctlreg_write - Write method for writing to ctlreg 6589 * @filp: open sysfs file 6590 * @kobj: kernel kobject that contains the kernel class device. 6591 * @bin_attr: kernel attributes passed to us. 6592 * @buf: contains the data to be written to the adapter IOREG space. 6593 * @off: offset into buffer to beginning of data. 6594 * @count: bytes to transfer. 6595 * 6596 * Description: 6597 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6598 * Uses the adapter io control registers to send buf contents to the adapter. 6599 * 6600 * Returns: 6601 * -ERANGE off and count combo out of range 6602 * -EINVAL off, count or buff address invalid 6603 * -EPERM adapter is offline 6604 * value of count, buf contents written 6605 **/ 6606 static ssize_t 6607 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6608 struct bin_attribute *bin_attr, 6609 char *buf, loff_t off, size_t count) 6610 { 6611 size_t buf_off; 6612 struct device *dev = container_of(kobj, struct device, kobj); 6613 struct Scsi_Host *shost = class_to_shost(dev); 6614 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6615 struct lpfc_hba *phba = vport->phba; 6616 6617 if (phba->sli_rev >= LPFC_SLI_REV4) 6618 return -EPERM; 6619 6620 if ((off + count) > FF_REG_AREA_SIZE) 6621 return -ERANGE; 6622 6623 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6624 return 0; 6625 6626 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6627 return -EINVAL; 6628 6629 /* This is to protect HBA registers from accidental writes. */ 6630 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6631 return -EINVAL; 6632 6633 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6634 return -EPERM; 6635 6636 spin_lock_irq(&phba->hbalock); 6637 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6638 buf_off += sizeof(uint32_t)) 6639 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6640 phba->ctrl_regs_memmap_p + off + buf_off); 6641 6642 spin_unlock_irq(&phba->hbalock); 6643 6644 return count; 6645 } 6646 6647 /** 6648 * sysfs_ctlreg_read - Read method for reading from ctlreg 6649 * @filp: open sysfs file 6650 * @kobj: kernel kobject that contains the kernel class device. 6651 * @bin_attr: kernel attributes passed to us. 6652 * @buf: if successful contains the data from the adapter IOREG space. 6653 * @off: offset into buffer to beginning of data. 6654 * @count: bytes to transfer. 6655 * 6656 * Description: 6657 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6658 * Uses the adapter io control registers to read data into buf. 6659 * 6660 * Returns: 6661 * -ERANGE off and count combo out of range 6662 * -EINVAL off, count or buff address invalid 6663 * value of count, buf contents read 6664 **/ 6665 static ssize_t 6666 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6667 struct bin_attribute *bin_attr, 6668 char *buf, loff_t off, size_t count) 6669 { 6670 size_t buf_off; 6671 uint32_t * tmp_ptr; 6672 struct device *dev = container_of(kobj, struct device, kobj); 6673 struct Scsi_Host *shost = class_to_shost(dev); 6674 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6675 struct lpfc_hba *phba = vport->phba; 6676 6677 if (phba->sli_rev >= LPFC_SLI_REV4) 6678 return -EPERM; 6679 6680 if (off > FF_REG_AREA_SIZE) 6681 return -ERANGE; 6682 6683 if ((off + count) > FF_REG_AREA_SIZE) 6684 count = FF_REG_AREA_SIZE - off; 6685 6686 if (count == 0) return 0; 6687 6688 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6689 return -EINVAL; 6690 6691 spin_lock_irq(&phba->hbalock); 6692 6693 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6694 tmp_ptr = (uint32_t *)(buf + buf_off); 6695 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6696 } 6697 6698 spin_unlock_irq(&phba->hbalock); 6699 6700 return count; 6701 } 6702 6703 static struct bin_attribute sysfs_ctlreg_attr = { 6704 .attr = { 6705 .name = "ctlreg", 6706 .mode = S_IRUSR | S_IWUSR, 6707 }, 6708 .size = 256, 6709 .read = sysfs_ctlreg_read, 6710 .write = sysfs_ctlreg_write, 6711 }; 6712 6713 /** 6714 * sysfs_mbox_write - Write method for writing information via mbox 6715 * @filp: open sysfs file 6716 * @kobj: kernel kobject that contains the kernel class device. 6717 * @bin_attr: kernel attributes passed to us. 6718 * @buf: contains the data to be written to sysfs mbox. 6719 * @off: offset into buffer to beginning of data. 6720 * @count: bytes to transfer. 6721 * 6722 * Description: 6723 * Deprecated function. All mailbox access from user space is performed via the 6724 * bsg interface. 6725 * 6726 * Returns: 6727 * -EPERM operation not permitted 6728 **/ 6729 static ssize_t 6730 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6731 struct bin_attribute *bin_attr, 6732 char *buf, loff_t off, size_t count) 6733 { 6734 return -EPERM; 6735 } 6736 6737 /** 6738 * sysfs_mbox_read - Read method for reading information via mbox 6739 * @filp: open sysfs file 6740 * @kobj: kernel kobject that contains the kernel class device. 6741 * @bin_attr: kernel attributes passed to us. 6742 * @buf: contains the data to be read from sysfs mbox. 6743 * @off: offset into buffer to beginning of data. 6744 * @count: bytes to transfer. 6745 * 6746 * Description: 6747 * Deprecated function. All mailbox access from user space is performed via the 6748 * bsg interface. 6749 * 6750 * Returns: 6751 * -EPERM operation not permitted 6752 **/ 6753 static ssize_t 6754 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6755 struct bin_attribute *bin_attr, 6756 char *buf, loff_t off, size_t count) 6757 { 6758 return -EPERM; 6759 } 6760 6761 static struct bin_attribute sysfs_mbox_attr = { 6762 .attr = { 6763 .name = "mbox", 6764 .mode = S_IRUSR | S_IWUSR, 6765 }, 6766 .size = MAILBOX_SYSFS_MAX, 6767 .read = sysfs_mbox_read, 6768 .write = sysfs_mbox_write, 6769 }; 6770 6771 /** 6772 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6773 * @vport: address of lpfc vport structure. 6774 * 6775 * Return codes: 6776 * zero on success 6777 * error return code from sysfs_create_bin_file() 6778 **/ 6779 int 6780 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6781 { 6782 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6783 int error; 6784 6785 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6786 &sysfs_drvr_stat_data_attr); 6787 6788 /* Virtual ports do not need ctrl_reg and mbox */ 6789 if (error || vport->port_type == LPFC_NPIV_PORT) 6790 goto out; 6791 6792 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6793 &sysfs_ctlreg_attr); 6794 if (error) 6795 goto out_remove_stat_attr; 6796 6797 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6798 &sysfs_mbox_attr); 6799 if (error) 6800 goto out_remove_ctlreg_attr; 6801 6802 return 0; 6803 out_remove_ctlreg_attr: 6804 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6805 out_remove_stat_attr: 6806 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6807 &sysfs_drvr_stat_data_attr); 6808 out: 6809 return error; 6810 } 6811 6812 /** 6813 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6814 * @vport: address of lpfc vport structure. 6815 **/ 6816 void 6817 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6818 { 6819 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6820 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6821 &sysfs_drvr_stat_data_attr); 6822 /* Virtual ports do not need ctrl_reg and mbox */ 6823 if (vport->port_type == LPFC_NPIV_PORT) 6824 return; 6825 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6826 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6827 } 6828 6829 /* 6830 * Dynamic FC Host Attributes Support 6831 */ 6832 6833 /** 6834 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6835 * @shost: kernel scsi host pointer. 6836 **/ 6837 static void 6838 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6839 { 6840 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6841 6842 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6843 sizeof fc_host_symbolic_name(shost)); 6844 } 6845 6846 /** 6847 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6848 * @shost: kernel scsi host pointer. 6849 **/ 6850 static void 6851 lpfc_get_host_port_id(struct Scsi_Host *shost) 6852 { 6853 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6854 6855 /* note: fc_myDID already in cpu endianness */ 6856 fc_host_port_id(shost) = vport->fc_myDID; 6857 } 6858 6859 /** 6860 * lpfc_get_host_port_type - Set the value of the scsi host port type 6861 * @shost: kernel scsi host pointer. 6862 **/ 6863 static void 6864 lpfc_get_host_port_type(struct Scsi_Host *shost) 6865 { 6866 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6867 struct lpfc_hba *phba = vport->phba; 6868 6869 spin_lock_irq(shost->host_lock); 6870 6871 if (vport->port_type == LPFC_NPIV_PORT) { 6872 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6873 } else if (lpfc_is_link_up(phba)) { 6874 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6875 if (vport->fc_flag & FC_PUBLIC_LOOP) 6876 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6877 else 6878 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6879 } else { 6880 if (vport->fc_flag & FC_FABRIC) 6881 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6882 else 6883 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6884 } 6885 } else 6886 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6887 6888 spin_unlock_irq(shost->host_lock); 6889 } 6890 6891 /** 6892 * lpfc_get_host_port_state - Set the value of the scsi host port state 6893 * @shost: kernel scsi host pointer. 6894 **/ 6895 static void 6896 lpfc_get_host_port_state(struct Scsi_Host *shost) 6897 { 6898 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6899 struct lpfc_hba *phba = vport->phba; 6900 6901 spin_lock_irq(shost->host_lock); 6902 6903 if (vport->fc_flag & FC_OFFLINE_MODE) 6904 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6905 else { 6906 switch (phba->link_state) { 6907 case LPFC_LINK_UNKNOWN: 6908 case LPFC_LINK_DOWN: 6909 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6910 break; 6911 case LPFC_LINK_UP: 6912 case LPFC_CLEAR_LA: 6913 case LPFC_HBA_READY: 6914 /* Links up, reports port state accordingly */ 6915 if (vport->port_state < LPFC_VPORT_READY) 6916 fc_host_port_state(shost) = 6917 FC_PORTSTATE_BYPASSED; 6918 else 6919 fc_host_port_state(shost) = 6920 FC_PORTSTATE_ONLINE; 6921 break; 6922 case LPFC_HBA_ERROR: 6923 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6924 break; 6925 default: 6926 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6927 break; 6928 } 6929 } 6930 6931 spin_unlock_irq(shost->host_lock); 6932 } 6933 6934 /** 6935 * lpfc_get_host_speed - Set the value of the scsi host speed 6936 * @shost: kernel scsi host pointer. 6937 **/ 6938 static void 6939 lpfc_get_host_speed(struct Scsi_Host *shost) 6940 { 6941 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6942 struct lpfc_hba *phba = vport->phba; 6943 6944 spin_lock_irq(shost->host_lock); 6945 6946 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6947 switch(phba->fc_linkspeed) { 6948 case LPFC_LINK_SPEED_1GHZ: 6949 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6950 break; 6951 case LPFC_LINK_SPEED_2GHZ: 6952 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6953 break; 6954 case LPFC_LINK_SPEED_4GHZ: 6955 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6956 break; 6957 case LPFC_LINK_SPEED_8GHZ: 6958 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6959 break; 6960 case LPFC_LINK_SPEED_10GHZ: 6961 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6962 break; 6963 case LPFC_LINK_SPEED_16GHZ: 6964 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6965 break; 6966 case LPFC_LINK_SPEED_32GHZ: 6967 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6968 break; 6969 case LPFC_LINK_SPEED_64GHZ: 6970 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6971 break; 6972 case LPFC_LINK_SPEED_128GHZ: 6973 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6974 break; 6975 case LPFC_LINK_SPEED_256GHZ: 6976 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6977 break; 6978 default: 6979 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6980 break; 6981 } 6982 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6983 switch (phba->fc_linkspeed) { 6984 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6985 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6986 break; 6987 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6988 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6989 break; 6990 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6991 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6992 break; 6993 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6994 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6995 break; 6996 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6997 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6998 break; 6999 case LPFC_ASYNC_LINK_SPEED_100GBPS: 7000 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 7001 break; 7002 default: 7003 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 7004 break; 7005 } 7006 } else 7007 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 7008 7009 spin_unlock_irq(shost->host_lock); 7010 } 7011 7012 /** 7013 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 7014 * @shost: kernel scsi host pointer. 7015 **/ 7016 static void 7017 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 7018 { 7019 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7020 struct lpfc_hba *phba = vport->phba; 7021 u64 node_name; 7022 7023 spin_lock_irq(shost->host_lock); 7024 7025 if ((vport->port_state > LPFC_FLOGI) && 7026 ((vport->fc_flag & FC_FABRIC) || 7027 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 7028 (vport->fc_flag & FC_PUBLIC_LOOP)))) 7029 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 7030 else 7031 /* fabric is local port if there is no F/FL_Port */ 7032 node_name = 0; 7033 7034 spin_unlock_irq(shost->host_lock); 7035 7036 fc_host_fabric_name(shost) = node_name; 7037 } 7038 7039 /** 7040 * lpfc_get_stats - Return statistical information about the adapter 7041 * @shost: kernel scsi host pointer. 7042 * 7043 * Notes: 7044 * NULL on error for link down, no mbox pool, sli2 active, 7045 * management not allowed, memory allocation error, or mbox error. 7046 * 7047 * Returns: 7048 * NULL for error 7049 * address of the adapter host statistics 7050 **/ 7051 static struct fc_host_statistics * 7052 lpfc_get_stats(struct Scsi_Host *shost) 7053 { 7054 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7055 struct lpfc_hba *phba = vport->phba; 7056 struct lpfc_sli *psli = &phba->sli; 7057 struct fc_host_statistics *hs = &phba->link_stats; 7058 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 7059 LPFC_MBOXQ_t *pmboxq; 7060 MAILBOX_t *pmb; 7061 int rc = 0; 7062 7063 /* 7064 * prevent udev from issuing mailbox commands until the port is 7065 * configured. 7066 */ 7067 if (phba->link_state < LPFC_LINK_DOWN || 7068 !phba->mbox_mem_pool || 7069 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 7070 return NULL; 7071 7072 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 7073 return NULL; 7074 7075 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7076 if (!pmboxq) 7077 return NULL; 7078 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 7079 7080 pmb = &pmboxq->u.mb; 7081 pmb->mbxCommand = MBX_READ_STATUS; 7082 pmb->mbxOwner = OWN_HOST; 7083 pmboxq->ctx_buf = NULL; 7084 pmboxq->vport = vport; 7085 7086 if (vport->fc_flag & FC_OFFLINE_MODE) { 7087 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7088 if (rc != MBX_SUCCESS) { 7089 mempool_free(pmboxq, phba->mbox_mem_pool); 7090 return NULL; 7091 } 7092 } else { 7093 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7094 if (rc != MBX_SUCCESS) { 7095 if (rc != MBX_TIMEOUT) 7096 mempool_free(pmboxq, phba->mbox_mem_pool); 7097 return NULL; 7098 } 7099 } 7100 7101 memset(hs, 0, sizeof (struct fc_host_statistics)); 7102 7103 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 7104 /* 7105 * The MBX_READ_STATUS returns tx_k_bytes which has to 7106 * converted to words 7107 */ 7108 hs->tx_words = (uint64_t) 7109 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 7110 * (uint64_t)256); 7111 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 7112 hs->rx_words = (uint64_t) 7113 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 7114 * (uint64_t)256); 7115 7116 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 7117 pmb->mbxCommand = MBX_READ_LNK_STAT; 7118 pmb->mbxOwner = OWN_HOST; 7119 pmboxq->ctx_buf = NULL; 7120 pmboxq->vport = vport; 7121 7122 if (vport->fc_flag & FC_OFFLINE_MODE) { 7123 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7124 if (rc != MBX_SUCCESS) { 7125 mempool_free(pmboxq, phba->mbox_mem_pool); 7126 return NULL; 7127 } 7128 } else { 7129 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7130 if (rc != MBX_SUCCESS) { 7131 if (rc != MBX_TIMEOUT) 7132 mempool_free(pmboxq, phba->mbox_mem_pool); 7133 return NULL; 7134 } 7135 } 7136 7137 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7138 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7139 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7140 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7141 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7142 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7143 hs->error_frames = pmb->un.varRdLnk.crcCnt; 7144 7145 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 7146 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 7147 7148 hs->link_failure_count -= lso->link_failure_count; 7149 hs->loss_of_sync_count -= lso->loss_of_sync_count; 7150 hs->loss_of_signal_count -= lso->loss_of_signal_count; 7151 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 7152 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 7153 hs->invalid_crc_count -= lso->invalid_crc_count; 7154 hs->error_frames -= lso->error_frames; 7155 7156 if (phba->hba_flag & HBA_FCOE_MODE) { 7157 hs->lip_count = -1; 7158 hs->nos_count = (phba->link_events >> 1); 7159 hs->nos_count -= lso->link_events; 7160 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 7161 hs->lip_count = (phba->fc_eventTag >> 1); 7162 hs->lip_count -= lso->link_events; 7163 hs->nos_count = -1; 7164 } else { 7165 hs->lip_count = -1; 7166 hs->nos_count = (phba->fc_eventTag >> 1); 7167 hs->nos_count -= lso->link_events; 7168 } 7169 7170 hs->dumped_frames = -1; 7171 7172 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 7173 7174 mempool_free(pmboxq, phba->mbox_mem_pool); 7175 7176 return hs; 7177 } 7178 7179 /** 7180 * lpfc_reset_stats - Copy the adapter link stats information 7181 * @shost: kernel scsi host pointer. 7182 **/ 7183 static void 7184 lpfc_reset_stats(struct Scsi_Host *shost) 7185 { 7186 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7187 struct lpfc_hba *phba = vport->phba; 7188 struct lpfc_sli *psli = &phba->sli; 7189 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 7190 LPFC_MBOXQ_t *pmboxq; 7191 MAILBOX_t *pmb; 7192 int rc = 0; 7193 7194 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 7195 return; 7196 7197 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7198 if (!pmboxq) 7199 return; 7200 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7201 7202 pmb = &pmboxq->u.mb; 7203 pmb->mbxCommand = MBX_READ_STATUS; 7204 pmb->mbxOwner = OWN_HOST; 7205 pmb->un.varWords[0] = 0x1; /* reset request */ 7206 pmboxq->ctx_buf = NULL; 7207 pmboxq->vport = vport; 7208 7209 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7210 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7211 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7212 if (rc != MBX_SUCCESS) { 7213 mempool_free(pmboxq, phba->mbox_mem_pool); 7214 return; 7215 } 7216 } else { 7217 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7218 if (rc != MBX_SUCCESS) { 7219 if (rc != MBX_TIMEOUT) 7220 mempool_free(pmboxq, phba->mbox_mem_pool); 7221 return; 7222 } 7223 } 7224 7225 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7226 pmb->mbxCommand = MBX_READ_LNK_STAT; 7227 pmb->mbxOwner = OWN_HOST; 7228 pmboxq->ctx_buf = NULL; 7229 pmboxq->vport = vport; 7230 7231 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7232 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7233 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7234 if (rc != MBX_SUCCESS) { 7235 mempool_free(pmboxq, phba->mbox_mem_pool); 7236 return; 7237 } 7238 } else { 7239 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7240 if (rc != MBX_SUCCESS) { 7241 if (rc != MBX_TIMEOUT) 7242 mempool_free(pmboxq, phba->mbox_mem_pool); 7243 return; 7244 } 7245 } 7246 7247 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7248 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7249 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7250 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7251 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7252 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7253 lso->error_frames = pmb->un.varRdLnk.crcCnt; 7254 if (phba->hba_flag & HBA_FCOE_MODE) 7255 lso->link_events = (phba->link_events >> 1); 7256 else 7257 lso->link_events = (phba->fc_eventTag >> 1); 7258 7259 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 7260 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 7261 7262 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 7263 sizeof(shost_to_fc_host(shost)->fpin_stats)); 7264 7265 psli->stats_start = ktime_get_seconds(); 7266 7267 mempool_free(pmboxq, phba->mbox_mem_pool); 7268 7269 return; 7270 } 7271 7272 /* 7273 * The LPFC driver treats linkdown handling as target loss events so there 7274 * are no sysfs handlers for link_down_tmo. 7275 */ 7276 7277 /** 7278 * lpfc_get_node_by_target - Return the nodelist for a target 7279 * @starget: kernel scsi target pointer. 7280 * 7281 * Returns: 7282 * address of the node list if found 7283 * NULL target not found 7284 **/ 7285 static struct lpfc_nodelist * 7286 lpfc_get_node_by_target(struct scsi_target *starget) 7287 { 7288 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 7289 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7290 struct lpfc_nodelist *ndlp; 7291 7292 spin_lock_irq(shost->host_lock); 7293 /* Search for this, mapped, target ID */ 7294 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 7295 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 7296 starget->id == ndlp->nlp_sid) { 7297 spin_unlock_irq(shost->host_lock); 7298 return ndlp; 7299 } 7300 } 7301 spin_unlock_irq(shost->host_lock); 7302 return NULL; 7303 } 7304 7305 /** 7306 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 7307 * @starget: kernel scsi target pointer. 7308 **/ 7309 static void 7310 lpfc_get_starget_port_id(struct scsi_target *starget) 7311 { 7312 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7313 7314 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7315 } 7316 7317 /** 7318 * lpfc_get_starget_node_name - Set the target node name 7319 * @starget: kernel scsi target pointer. 7320 * 7321 * Description: Set the target node name to the ndlp node name wwn or zero. 7322 **/ 7323 static void 7324 lpfc_get_starget_node_name(struct scsi_target *starget) 7325 { 7326 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7327 7328 fc_starget_node_name(starget) = 7329 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7330 } 7331 7332 /** 7333 * lpfc_get_starget_port_name - Set the target port name 7334 * @starget: kernel scsi target pointer. 7335 * 7336 * Description: set the target port name to the ndlp port name wwn or zero. 7337 **/ 7338 static void 7339 lpfc_get_starget_port_name(struct scsi_target *starget) 7340 { 7341 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7342 7343 fc_starget_port_name(starget) = 7344 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7345 } 7346 7347 /** 7348 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7349 * @rport: fc rport address. 7350 * @timeout: new value for dev loss tmo. 7351 * 7352 * Description: 7353 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7354 * dev_loss_tmo to one. 7355 **/ 7356 static void 7357 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7358 { 7359 struct lpfc_rport_data *rdata = rport->dd_data; 7360 struct lpfc_nodelist *ndlp = rdata->pnode; 7361 #if (IS_ENABLED(CONFIG_NVME_FC)) 7362 struct lpfc_nvme_rport *nrport = NULL; 7363 #endif 7364 7365 if (timeout) 7366 rport->dev_loss_tmo = timeout; 7367 else 7368 rport->dev_loss_tmo = 1; 7369 7370 if (!ndlp) { 7371 dev_info(&rport->dev, "Cannot find remote node to " 7372 "set rport dev loss tmo, port_id x%x\n", 7373 rport->port_id); 7374 return; 7375 } 7376 7377 #if (IS_ENABLED(CONFIG_NVME_FC)) 7378 nrport = lpfc_ndlp_get_nrport(ndlp); 7379 7380 if (nrport && nrport->remoteport) 7381 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7382 rport->dev_loss_tmo); 7383 #endif 7384 } 7385 7386 /* 7387 * lpfc_rport_show_function - Return rport target information 7388 * 7389 * Description: 7390 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7391 * 7392 * lpfc_show_rport_##field: returns the bytes formatted in buf 7393 * @cdev: class converted to an fc_rport. 7394 * @buf: on return contains the target_field or zero. 7395 * 7396 * Returns: size of formatted string. 7397 **/ 7398 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7399 static ssize_t \ 7400 lpfc_show_rport_##field (struct device *dev, \ 7401 struct device_attribute *attr, \ 7402 char *buf) \ 7403 { \ 7404 struct fc_rport *rport = transport_class_to_rport(dev); \ 7405 struct lpfc_rport_data *rdata = rport->hostdata; \ 7406 return scnprintf(buf, sz, format_string, \ 7407 (rdata->target) ? cast rdata->target->field : 0); \ 7408 } 7409 7410 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7411 lpfc_rport_show_function(field, format_string, sz, ) \ 7412 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7413 7414 /** 7415 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7416 * @fc_vport: The fc_vport who's symbolic name has been changed. 7417 * 7418 * Description: 7419 * This function is called by the transport after the @fc_vport's symbolic name 7420 * has been changed. This function re-registers the symbolic name with the 7421 * switch to propagate the change into the fabric if the vport is active. 7422 **/ 7423 static void 7424 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7425 { 7426 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7427 7428 if (vport->port_state == LPFC_VPORT_READY) 7429 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7430 } 7431 7432 /** 7433 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7434 * @phba: Pointer to lpfc_hba struct. 7435 * @verbose: Verbose level to set. 7436 * 7437 * This function is called by the lpfc_get_cfgparam() routine to set the 7438 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7439 * log message according to the module's lpfc_log_verbose parameter setting 7440 * before hba port or vport created. 7441 **/ 7442 static void 7443 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7444 { 7445 phba->cfg_log_verbose = verbose; 7446 } 7447 7448 struct fc_function_template lpfc_transport_functions = { 7449 /* fixed attributes the driver supports */ 7450 .show_host_node_name = 1, 7451 .show_host_port_name = 1, 7452 .show_host_supported_classes = 1, 7453 .show_host_supported_fc4s = 1, 7454 .show_host_supported_speeds = 1, 7455 .show_host_maxframe_size = 1, 7456 7457 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7458 .show_host_symbolic_name = 1, 7459 7460 /* dynamic attributes the driver supports */ 7461 .get_host_port_id = lpfc_get_host_port_id, 7462 .show_host_port_id = 1, 7463 7464 .get_host_port_type = lpfc_get_host_port_type, 7465 .show_host_port_type = 1, 7466 7467 .get_host_port_state = lpfc_get_host_port_state, 7468 .show_host_port_state = 1, 7469 7470 /* active_fc4s is shown but doesn't change (thus no get function) */ 7471 .show_host_active_fc4s = 1, 7472 7473 .get_host_speed = lpfc_get_host_speed, 7474 .show_host_speed = 1, 7475 7476 .get_host_fabric_name = lpfc_get_host_fabric_name, 7477 .show_host_fabric_name = 1, 7478 7479 /* 7480 * The LPFC driver treats linkdown handling as target loss events 7481 * so there are no sysfs handlers for link_down_tmo. 7482 */ 7483 7484 .get_fc_host_stats = lpfc_get_stats, 7485 .reset_fc_host_stats = lpfc_reset_stats, 7486 7487 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7488 .show_rport_maxframe_size = 1, 7489 .show_rport_supported_classes = 1, 7490 7491 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7492 .show_rport_dev_loss_tmo = 1, 7493 7494 .get_starget_port_id = lpfc_get_starget_port_id, 7495 .show_starget_port_id = 1, 7496 7497 .get_starget_node_name = lpfc_get_starget_node_name, 7498 .show_starget_node_name = 1, 7499 7500 .get_starget_port_name = lpfc_get_starget_port_name, 7501 .show_starget_port_name = 1, 7502 7503 .issue_fc_host_lip = lpfc_issue_lip, 7504 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7505 .terminate_rport_io = lpfc_terminate_rport_io, 7506 7507 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7508 7509 .vport_disable = lpfc_vport_disable, 7510 7511 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7512 7513 .bsg_request = lpfc_bsg_request, 7514 .bsg_timeout = lpfc_bsg_timeout, 7515 }; 7516 7517 struct fc_function_template lpfc_vport_transport_functions = { 7518 /* fixed attributes the driver supports */ 7519 .show_host_node_name = 1, 7520 .show_host_port_name = 1, 7521 .show_host_supported_classes = 1, 7522 .show_host_supported_fc4s = 1, 7523 .show_host_supported_speeds = 1, 7524 .show_host_maxframe_size = 1, 7525 7526 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7527 .show_host_symbolic_name = 1, 7528 7529 /* dynamic attributes the driver supports */ 7530 .get_host_port_id = lpfc_get_host_port_id, 7531 .show_host_port_id = 1, 7532 7533 .get_host_port_type = lpfc_get_host_port_type, 7534 .show_host_port_type = 1, 7535 7536 .get_host_port_state = lpfc_get_host_port_state, 7537 .show_host_port_state = 1, 7538 7539 /* active_fc4s is shown but doesn't change (thus no get function) */ 7540 .show_host_active_fc4s = 1, 7541 7542 .get_host_speed = lpfc_get_host_speed, 7543 .show_host_speed = 1, 7544 7545 .get_host_fabric_name = lpfc_get_host_fabric_name, 7546 .show_host_fabric_name = 1, 7547 7548 /* 7549 * The LPFC driver treats linkdown handling as target loss events 7550 * so there are no sysfs handlers for link_down_tmo. 7551 */ 7552 7553 .get_fc_host_stats = lpfc_get_stats, 7554 .reset_fc_host_stats = lpfc_reset_stats, 7555 7556 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7557 .show_rport_maxframe_size = 1, 7558 .show_rport_supported_classes = 1, 7559 7560 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7561 .show_rport_dev_loss_tmo = 1, 7562 7563 .get_starget_port_id = lpfc_get_starget_port_id, 7564 .show_starget_port_id = 1, 7565 7566 .get_starget_node_name = lpfc_get_starget_node_name, 7567 .show_starget_node_name = 1, 7568 7569 .get_starget_port_name = lpfc_get_starget_port_name, 7570 .show_starget_port_name = 1, 7571 7572 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7573 .terminate_rport_io = lpfc_terminate_rport_io, 7574 7575 .vport_disable = lpfc_vport_disable, 7576 7577 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7578 }; 7579 7580 /** 7581 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7582 * Mode 7583 * @phba: lpfc_hba pointer. 7584 **/ 7585 static void 7586 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7587 { 7588 /* If the adapter supports FCoE mode */ 7589 switch (phba->pcidev->device) { 7590 case PCI_DEVICE_ID_SKYHAWK: 7591 case PCI_DEVICE_ID_SKYHAWK_VF: 7592 case PCI_DEVICE_ID_LANCER_FCOE: 7593 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7594 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7595 case PCI_DEVICE_ID_HORNET: 7596 case PCI_DEVICE_ID_TIGERSHARK: 7597 case PCI_DEVICE_ID_TOMCAT: 7598 phba->hba_flag |= HBA_FCOE_MODE; 7599 break; 7600 default: 7601 /* for others, clear the flag */ 7602 phba->hba_flag &= ~HBA_FCOE_MODE; 7603 } 7604 } 7605 7606 /** 7607 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7608 * @phba: lpfc_hba pointer. 7609 **/ 7610 void 7611 lpfc_get_cfgparam(struct lpfc_hba *phba) 7612 { 7613 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7614 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7615 lpfc_ns_query_init(phba, lpfc_ns_query); 7616 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7617 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7618 lpfc_cr_count_init(phba, lpfc_cr_count); 7619 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7620 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7621 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7622 lpfc_ack0_init(phba, lpfc_ack0); 7623 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7624 lpfc_topology_init(phba, lpfc_topology); 7625 lpfc_link_speed_init(phba, lpfc_link_speed); 7626 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7627 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7628 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7629 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7630 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7631 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7632 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7633 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7634 lpfc_use_msi_init(phba, lpfc_use_msi); 7635 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7636 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7637 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7638 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7639 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7640 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7641 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7642 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7643 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7644 7645 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7646 /* VMID Inits */ 7647 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7648 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7649 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7650 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7651 if (phba->sli_rev != LPFC_SLI_REV4) 7652 phba->cfg_EnableXLane = 0; 7653 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7654 7655 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7656 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7657 phba->cfg_oas_lun_state = 0; 7658 phba->cfg_oas_lun_status = 0; 7659 phba->cfg_oas_flags = 0; 7660 phba->cfg_oas_priority = 0; 7661 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7662 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7663 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7664 if (phba->sli_rev == LPFC_SLI_REV4) 7665 phba->cfg_poll = 0; 7666 else 7667 phba->cfg_poll = lpfc_poll; 7668 7669 /* Get the function mode */ 7670 lpfc_get_hba_function_mode(phba); 7671 7672 /* BlockGuard allowed for FC only. */ 7673 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7674 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7675 "0581 BlockGuard feature not supported\n"); 7676 /* If set, clear the BlockGuard support param */ 7677 phba->cfg_enable_bg = 0; 7678 } else if (phba->cfg_enable_bg) { 7679 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7680 } 7681 7682 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7683 7684 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7685 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7686 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7687 7688 /* Initialize first burst. Target vs Initiator are different. */ 7689 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7690 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7691 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7692 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7693 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7694 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7695 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7696 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7697 7698 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7699 phba->cmf_active_mode = LPFC_CFG_OFF; 7700 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7701 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7702 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7703 7704 if (phba->sli_rev != LPFC_SLI_REV4) { 7705 /* NVME only supported on SLI4 */ 7706 phba->nvmet_support = 0; 7707 phba->cfg_nvmet_mrq = 0; 7708 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7709 phba->cfg_enable_bbcr = 0; 7710 phba->cfg_xri_rebalancing = 0; 7711 } else { 7712 /* We MUST have FCP support */ 7713 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7714 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7715 } 7716 7717 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7718 7719 phba->cfg_enable_pbde = 0; 7720 7721 /* A value of 0 means use the number of CPUs found in the system */ 7722 if (phba->cfg_hdw_queue == 0) 7723 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7724 if (phba->cfg_irq_chann == 0) 7725 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7726 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7727 phba->sli_rev == LPFC_SLI_REV4) 7728 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7729 7730 phba->cfg_soft_wwnn = 0L; 7731 phba->cfg_soft_wwpn = 0L; 7732 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7733 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7734 lpfc_aer_support_init(phba, lpfc_aer_support); 7735 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7736 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7737 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7738 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7739 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7740 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7741 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7742 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7743 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7744 7745 return; 7746 } 7747 7748 /** 7749 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7750 * dependencies between protocols and roles. 7751 * @phba: lpfc_hba pointer. 7752 **/ 7753 void 7754 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7755 { 7756 int logit = 0; 7757 7758 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7759 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7760 logit = 1; 7761 } 7762 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7763 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7764 logit = 1; 7765 } 7766 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7767 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7768 logit = 1; 7769 } 7770 if (logit) 7771 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7772 "2006 Reducing Queues - CPU limitation: " 7773 "IRQ %d HDWQ %d\n", 7774 phba->cfg_irq_chann, 7775 phba->cfg_hdw_queue); 7776 7777 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7778 phba->nvmet_support) { 7779 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7780 7781 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7782 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7783 "NVME Target PRLI ACC enable_fb ", 7784 phba->cfg_nvme_enable_fb, 7785 phba->cfg_nvmet_fb_size, 7786 LPFC_NVMET_FB_SZ_MAX); 7787 7788 if (phba->cfg_nvme_enable_fb == 0) 7789 phba->cfg_nvmet_fb_size = 0; 7790 else { 7791 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7792 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7793 } 7794 7795 if (!phba->cfg_nvmet_mrq) 7796 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7797 7798 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7799 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7800 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7801 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7802 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7803 phba->cfg_nvmet_mrq); 7804 } 7805 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7806 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7807 7808 } else { 7809 /* Not NVME Target mode. Turn off Target parameters. */ 7810 phba->nvmet_support = 0; 7811 phba->cfg_nvmet_mrq = 0; 7812 phba->cfg_nvmet_fb_size = 0; 7813 } 7814 } 7815 7816 /** 7817 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7818 * @vport: lpfc_vport pointer. 7819 **/ 7820 void 7821 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7822 { 7823 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7824 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7825 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7826 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7827 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7828 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7829 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7830 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7831 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7832 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7833 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7834 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7835 lpfc_max_luns_init(vport, lpfc_max_luns); 7836 lpfc_scan_down_init(vport, lpfc_scan_down); 7837 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7838 return; 7839 } 7840