1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2024 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 69const 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 **/ 101static void 102lpfc_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 117static ssize_t 118lpfc_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_cap, 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 280buffer_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 **/ 302static ssize_t 303lpfc_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 **/ 317static ssize_t 318lpfc_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 331static ssize_t 332lpfc_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 unsigned long iflags; 348 char *statep; 349 int i; 350 int len = 0; 351 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 352 353 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 354 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 355 return len; 356 } 357 if (phba->nvmet_support) { 358 if (!phba->targetport) { 359 len = scnprintf(buf, PAGE_SIZE, 360 "NVME Target: x%llx is not allocated\n", 361 wwn_to_u64(vport->fc_portname.u.wwn)); 362 return len; 363 } 364 /* Port state is only one of two values for now. */ 365 if (phba->targetport->port_id) 366 statep = "REGISTERED"; 367 else 368 statep = "INIT"; 369 scnprintf(tmp, sizeof(tmp), 370 "NVME Target Enabled State %s\n", 371 statep); 372 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 373 goto buffer_done; 374 375 scnprintf(tmp, sizeof(tmp), 376 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 377 "NVME Target: lpfc", 378 phba->brd_no, 379 wwn_to_u64(vport->fc_portname.u.wwn), 380 wwn_to_u64(vport->fc_nodename.u.wwn), 381 phba->targetport->port_id); 382 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 383 goto buffer_done; 384 385 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 386 >= PAGE_SIZE) 387 goto buffer_done; 388 389 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 390 scnprintf(tmp, sizeof(tmp), 391 "LS: Rcv %08x Drop %08x Abort %08x\n", 392 atomic_read(&tgtp->rcv_ls_req_in), 393 atomic_read(&tgtp->rcv_ls_req_drop), 394 atomic_read(&tgtp->xmt_ls_abort)); 395 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 396 goto buffer_done; 397 398 if (atomic_read(&tgtp->rcv_ls_req_in) != 399 atomic_read(&tgtp->rcv_ls_req_out)) { 400 scnprintf(tmp, sizeof(tmp), 401 "Rcv LS: in %08x != out %08x\n", 402 atomic_read(&tgtp->rcv_ls_req_in), 403 atomic_read(&tgtp->rcv_ls_req_out)); 404 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 405 goto buffer_done; 406 } 407 408 scnprintf(tmp, sizeof(tmp), 409 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 410 atomic_read(&tgtp->xmt_ls_rsp), 411 atomic_read(&tgtp->xmt_ls_drop), 412 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 413 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 414 goto buffer_done; 415 416 scnprintf(tmp, sizeof(tmp), 417 "LS: RSP Abort %08x xb %08x Err %08x\n", 418 atomic_read(&tgtp->xmt_ls_rsp_aborted), 419 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 420 atomic_read(&tgtp->xmt_ls_rsp_error)); 421 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 422 goto buffer_done; 423 424 scnprintf(tmp, sizeof(tmp), 425 "FCP: Rcv %08x Defer %08x Release %08x " 426 "Drop %08x\n", 427 atomic_read(&tgtp->rcv_fcp_cmd_in), 428 atomic_read(&tgtp->rcv_fcp_cmd_defer), 429 atomic_read(&tgtp->xmt_fcp_release), 430 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 431 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 432 goto buffer_done; 433 434 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 435 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 436 scnprintf(tmp, sizeof(tmp), 437 "Rcv FCP: in %08x != out %08x\n", 438 atomic_read(&tgtp->rcv_fcp_cmd_in), 439 atomic_read(&tgtp->rcv_fcp_cmd_out)); 440 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 441 goto buffer_done; 442 } 443 444 scnprintf(tmp, sizeof(tmp), 445 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 446 "drop %08x\n", 447 atomic_read(&tgtp->xmt_fcp_read), 448 atomic_read(&tgtp->xmt_fcp_read_rsp), 449 atomic_read(&tgtp->xmt_fcp_write), 450 atomic_read(&tgtp->xmt_fcp_rsp), 451 atomic_read(&tgtp->xmt_fcp_drop)); 452 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 453 goto buffer_done; 454 455 scnprintf(tmp, sizeof(tmp), 456 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 457 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 458 atomic_read(&tgtp->xmt_fcp_rsp_error), 459 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 460 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 461 goto buffer_done; 462 463 scnprintf(tmp, sizeof(tmp), 464 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 465 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 466 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 467 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 468 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 469 goto buffer_done; 470 471 scnprintf(tmp, sizeof(tmp), 472 "ABORT: Xmt %08x Cmpl %08x\n", 473 atomic_read(&tgtp->xmt_fcp_abort), 474 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 475 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 476 goto buffer_done; 477 478 scnprintf(tmp, sizeof(tmp), 479 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 480 atomic_read(&tgtp->xmt_abort_sol), 481 atomic_read(&tgtp->xmt_abort_unsol), 482 atomic_read(&tgtp->xmt_abort_rsp), 483 atomic_read(&tgtp->xmt_abort_rsp_error)); 484 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 485 goto buffer_done; 486 487 scnprintf(tmp, sizeof(tmp), 488 "DELAY: ctx %08x fod %08x wqfull %08x\n", 489 atomic_read(&tgtp->defer_ctx), 490 atomic_read(&tgtp->defer_fod), 491 atomic_read(&tgtp->defer_wqfull)); 492 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 493 goto buffer_done; 494 495 /* Calculate outstanding IOs */ 496 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 497 tot += atomic_read(&tgtp->xmt_fcp_release); 498 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 499 500 scnprintf(tmp, sizeof(tmp), 501 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 502 "CTX Outstanding %08llx\n\n", 503 phba->sli4_hba.nvmet_xri_cnt, 504 phba->sli4_hba.nvmet_io_wait_cnt, 505 phba->sli4_hba.nvmet_io_wait_total, 506 tot); 507 strlcat(buf, tmp, PAGE_SIZE); 508 goto buffer_done; 509 } 510 511 localport = vport->localport; 512 if (!localport) { 513 len = scnprintf(buf, PAGE_SIZE, 514 "NVME Initiator x%llx is not allocated\n", 515 wwn_to_u64(vport->fc_portname.u.wwn)); 516 return len; 517 } 518 lport = (struct lpfc_nvme_lport *)localport->private; 519 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 520 goto buffer_done; 521 522 scnprintf(tmp, sizeof(tmp), 523 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 524 phba->brd_no, 525 phba->sli4_hba.max_cfg_param.max_xri, 526 phba->sli4_hba.io_xri_max, 527 lpfc_sli4_get_els_iocb_cnt(phba)); 528 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 529 goto buffer_done; 530 531 /* Port state is only one of two values for now. */ 532 if (localport->port_id) 533 statep = "ONLINE"; 534 else 535 statep = "UNKNOWN "; 536 537 scnprintf(tmp, sizeof(tmp), 538 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 539 "NVME LPORT lpfc", 540 phba->brd_no, 541 wwn_to_u64(vport->fc_portname.u.wwn), 542 wwn_to_u64(vport->fc_nodename.u.wwn), 543 localport->port_id, statep); 544 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 545 goto buffer_done; 546 547 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 548 549 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 550 nrport = NULL; 551 spin_lock(&ndlp->lock); 552 rport = lpfc_ndlp_get_nrport(ndlp); 553 if (rport) 554 nrport = rport->remoteport; 555 spin_unlock(&ndlp->lock); 556 if (!nrport) 557 continue; 558 559 /* Port state is only one of two values for now. */ 560 switch (nrport->port_state) { 561 case FC_OBJSTATE_ONLINE: 562 statep = "ONLINE"; 563 break; 564 case FC_OBJSTATE_UNKNOWN: 565 statep = "UNKNOWN "; 566 break; 567 default: 568 statep = "UNSUPPORTED"; 569 break; 570 } 571 572 /* Tab in to show lport ownership. */ 573 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 574 goto unlock_buf_done; 575 if (phba->brd_no >= 10) { 576 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 577 goto unlock_buf_done; 578 } 579 580 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 581 nrport->port_name); 582 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 583 goto unlock_buf_done; 584 585 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 586 nrport->node_name); 587 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 588 goto unlock_buf_done; 589 590 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 591 nrport->port_id); 592 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 593 goto unlock_buf_done; 594 595 /* An NVME rport can have multiple roles. */ 596 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 597 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 598 goto unlock_buf_done; 599 } 600 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 601 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 602 goto unlock_buf_done; 603 } 604 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 605 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 606 goto unlock_buf_done; 607 } 608 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 609 FC_PORT_ROLE_NVME_TARGET | 610 FC_PORT_ROLE_NVME_DISCOVERY)) { 611 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 612 nrport->port_role); 613 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 614 goto unlock_buf_done; 615 } 616 617 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 618 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 619 goto unlock_buf_done; 620 } 621 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 622 623 if (!lport) 624 goto buffer_done; 625 626 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 627 goto buffer_done; 628 629 scnprintf(tmp, sizeof(tmp), 630 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 631 atomic_read(&lport->fc4NvmeLsRequests), 632 atomic_read(&lport->fc4NvmeLsCmpls), 633 atomic_read(&lport->xmt_ls_abort)); 634 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 635 goto buffer_done; 636 637 scnprintf(tmp, sizeof(tmp), 638 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 639 atomic_read(&lport->xmt_ls_err), 640 atomic_read(&lport->cmpl_ls_xb), 641 atomic_read(&lport->cmpl_ls_err)); 642 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 643 goto buffer_done; 644 645 totin = 0; 646 totout = 0; 647 for (i = 0; i < phba->cfg_hdw_queue; i++) { 648 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 649 tot = cstat->io_cmpls; 650 totin += tot; 651 data1 = cstat->input_requests; 652 data2 = cstat->output_requests; 653 data3 = cstat->control_requests; 654 totout += (data1 + data2 + data3); 655 } 656 scnprintf(tmp, sizeof(tmp), 657 "Total FCP Cmpl %016llx Issue %016llx " 658 "OutIO %016llx\n", 659 totin, totout, totout - totin); 660 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 661 goto buffer_done; 662 663 scnprintf(tmp, sizeof(tmp), 664 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 665 "wqerr %08x err %08x\n", 666 atomic_read(&lport->xmt_fcp_abort), 667 atomic_read(&lport->xmt_fcp_noxri), 668 atomic_read(&lport->xmt_fcp_bad_ndlp), 669 atomic_read(&lport->xmt_fcp_qdepth), 670 atomic_read(&lport->xmt_fcp_wqerr), 671 atomic_read(&lport->xmt_fcp_err)); 672 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 673 goto buffer_done; 674 675 scnprintf(tmp, sizeof(tmp), 676 "FCP CMPL: xb %08x Err %08x\n", 677 atomic_read(&lport->cmpl_fcp_xb), 678 atomic_read(&lport->cmpl_fcp_err)); 679 strlcat(buf, tmp, PAGE_SIZE); 680 681 /* host_lock is already unlocked. */ 682 goto buffer_done; 683 684 unlock_buf_done: 685 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 686 687 buffer_done: 688 len = strnlen(buf, PAGE_SIZE); 689 690 if (unlikely(len >= (PAGE_SIZE - 1))) { 691 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 692 "6314 Catching potential buffer " 693 "overflow > PAGE_SIZE = %lu bytes\n", 694 PAGE_SIZE); 695 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 696 LPFC_INFO_MORE_STR, 697 sizeof(LPFC_INFO_MORE_STR) + 1); 698 } 699 700 return len; 701} 702 703static ssize_t 704lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 705 char *buf) 706{ 707 struct Scsi_Host *shost = class_to_shost(dev); 708 struct lpfc_vport *vport = shost_priv(shost); 709 struct lpfc_hba *phba = vport->phba; 710 int len; 711 struct lpfc_fc4_ctrl_stat *cstat; 712 u64 data1, data2, data3; 713 u64 tot, totin, totout; 714 int i; 715 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 716 717 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 718 (phba->sli_rev != LPFC_SLI_REV4)) 719 return 0; 720 721 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 722 723 totin = 0; 724 totout = 0; 725 for (i = 0; i < phba->cfg_hdw_queue; i++) { 726 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 727 tot = cstat->io_cmpls; 728 totin += tot; 729 data1 = cstat->input_requests; 730 data2 = cstat->output_requests; 731 data3 = cstat->control_requests; 732 totout += (data1 + data2 + data3); 733 734 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 735 "IO %016llx ", i, data1, data2, data3); 736 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 737 goto buffer_done; 738 739 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 740 tot, ((data1 + data2 + data3) - tot)); 741 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 742 goto buffer_done; 743 } 744 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 745 "OutIO %016llx\n", totin, totout, totout - totin); 746 strlcat(buf, tmp, PAGE_SIZE); 747 748buffer_done: 749 len = strnlen(buf, PAGE_SIZE); 750 751 return len; 752} 753 754static ssize_t 755lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 756 char *buf) 757{ 758 struct Scsi_Host *shost = class_to_shost(dev); 759 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 760 struct lpfc_hba *phba = vport->phba; 761 762 if (phba->cfg_enable_bg) { 763 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 764 return scnprintf(buf, PAGE_SIZE, 765 "BlockGuard Enabled\n"); 766 else 767 return scnprintf(buf, PAGE_SIZE, 768 "BlockGuard Not Supported\n"); 769 } else 770 return scnprintf(buf, PAGE_SIZE, 771 "BlockGuard Disabled\n"); 772} 773 774static ssize_t 775lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 776 char *buf) 777{ 778 struct Scsi_Host *shost = class_to_shost(dev); 779 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 780 struct lpfc_hba *phba = vport->phba; 781 782 return scnprintf(buf, PAGE_SIZE, "%llu\n", 783 (unsigned long long)phba->bg_guard_err_cnt); 784} 785 786static ssize_t 787lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 788 char *buf) 789{ 790 struct Scsi_Host *shost = class_to_shost(dev); 791 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 792 struct lpfc_hba *phba = vport->phba; 793 794 return scnprintf(buf, PAGE_SIZE, "%llu\n", 795 (unsigned long long)phba->bg_apptag_err_cnt); 796} 797 798static ssize_t 799lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 800 char *buf) 801{ 802 struct Scsi_Host *shost = class_to_shost(dev); 803 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 804 struct lpfc_hba *phba = vport->phba; 805 806 return scnprintf(buf, PAGE_SIZE, "%llu\n", 807 (unsigned long long)phba->bg_reftag_err_cnt); 808} 809 810/** 811 * lpfc_info_show - Return some pci info about the host in ascii 812 * @dev: class converted to a Scsi_host structure. 813 * @attr: device attribute, not used. 814 * @buf: on return contains the formatted text from lpfc_info(). 815 * 816 * Returns: size of formatted string. 817 **/ 818static ssize_t 819lpfc_info_show(struct device *dev, struct device_attribute *attr, 820 char *buf) 821{ 822 struct Scsi_Host *host = class_to_shost(dev); 823 824 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 825} 826 827/** 828 * lpfc_serialnum_show - Return the hba serial number in ascii 829 * @dev: class converted to a Scsi_host structure. 830 * @attr: device attribute, not used. 831 * @buf: on return contains the formatted text serial number. 832 * 833 * Returns: size of formatted string. 834 **/ 835static ssize_t 836lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 837 char *buf) 838{ 839 struct Scsi_Host *shost = class_to_shost(dev); 840 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 841 struct lpfc_hba *phba = vport->phba; 842 843 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 844} 845 846/** 847 * lpfc_temp_sensor_show - Return the temperature sensor level 848 * @dev: class converted to a Scsi_host structure. 849 * @attr: device attribute, not used. 850 * @buf: on return contains the formatted support level. 851 * 852 * Description: 853 * Returns a number indicating the temperature sensor level currently 854 * supported, zero or one in ascii. 855 * 856 * Returns: size of formatted string. 857 **/ 858static ssize_t 859lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 860 char *buf) 861{ 862 struct Scsi_Host *shost = class_to_shost(dev); 863 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 864 struct lpfc_hba *phba = vport->phba; 865 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 866} 867 868/** 869 * lpfc_modeldesc_show - Return the model description of the hba 870 * @dev: class converted to a Scsi_host structure. 871 * @attr: device attribute, not used. 872 * @buf: on return contains the scsi vpd model description. 873 * 874 * Returns: size of formatted string. 875 **/ 876static ssize_t 877lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 878 char *buf) 879{ 880 struct Scsi_Host *shost = class_to_shost(dev); 881 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 882 struct lpfc_hba *phba = vport->phba; 883 884 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 885} 886 887/** 888 * lpfc_modelname_show - Return the model name of the hba 889 * @dev: class converted to a Scsi_host structure. 890 * @attr: device attribute, not used. 891 * @buf: on return contains the scsi vpd model name. 892 * 893 * Returns: size of formatted string. 894 **/ 895static ssize_t 896lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 897 char *buf) 898{ 899 struct Scsi_Host *shost = class_to_shost(dev); 900 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 901 struct lpfc_hba *phba = vport->phba; 902 903 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 904} 905 906/** 907 * lpfc_programtype_show - Return the program type of the hba 908 * @dev: class converted to a Scsi_host structure. 909 * @attr: device attribute, not used. 910 * @buf: on return contains the scsi vpd program type. 911 * 912 * Returns: size of formatted string. 913 **/ 914static ssize_t 915lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 916 char *buf) 917{ 918 struct Scsi_Host *shost = class_to_shost(dev); 919 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 920 struct lpfc_hba *phba = vport->phba; 921 922 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 923} 924 925/** 926 * lpfc_vportnum_show - Return the port number in ascii of the hba 927 * @dev: class converted to a Scsi_host structure. 928 * @attr: device attribute, not used. 929 * @buf: on return contains scsi vpd program type. 930 * 931 * Returns: size of formatted string. 932 **/ 933static ssize_t 934lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 935 char *buf) 936{ 937 struct Scsi_Host *shost = class_to_shost(dev); 938 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 939 struct lpfc_hba *phba = vport->phba; 940 941 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 942} 943 944/** 945 * lpfc_fwrev_show - Return the firmware rev running in the hba 946 * @dev: class converted to a Scsi_host structure. 947 * @attr: device attribute, not used. 948 * @buf: on return contains the scsi vpd program type. 949 * 950 * Returns: size of formatted string. 951 **/ 952static ssize_t 953lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 954 char *buf) 955{ 956 struct Scsi_Host *shost = class_to_shost(dev); 957 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 958 struct lpfc_hba *phba = vport->phba; 959 uint32_t if_type; 960 uint8_t sli_family; 961 char fwrev[FW_REV_STR_SIZE]; 962 int len; 963 964 lpfc_decode_firmware_rev(phba, fwrev, 1); 965 if_type = phba->sli4_hba.pc_sli4_params.if_type; 966 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 967 968 if (phba->sli_rev < LPFC_SLI_REV4) 969 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 970 fwrev, phba->sli_rev); 971 else 972 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 973 fwrev, phba->sli_rev, if_type, sli_family); 974 975 return len; 976} 977 978/** 979 * lpfc_hdw_show - Return the jedec information about the hba 980 * @dev: class converted to a Scsi_host structure. 981 * @attr: device attribute, not used. 982 * @buf: on return contains the scsi vpd program type. 983 * 984 * Returns: size of formatted string. 985 **/ 986static ssize_t 987lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 988{ 989 char hdw[9]; 990 struct Scsi_Host *shost = class_to_shost(dev); 991 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 992 struct lpfc_hba *phba = vport->phba; 993 lpfc_vpd_t *vp = &phba->vpd; 994 995 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 996 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 997 vp->rev.smRev, vp->rev.smFwRev); 998} 999 1000/** 1001 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 1002 * @dev: class converted to a Scsi_host structure. 1003 * @attr: device attribute, not used. 1004 * @buf: on return contains the ROM and FCode ascii strings. 1005 * 1006 * Returns: size of formatted string. 1007 **/ 1008static ssize_t 1009lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 1010 char *buf) 1011{ 1012 struct Scsi_Host *shost = class_to_shost(dev); 1013 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1014 struct lpfc_hba *phba = vport->phba; 1015 char fwrev[FW_REV_STR_SIZE]; 1016 1017 if (phba->sli_rev < LPFC_SLI_REV4) 1018 return scnprintf(buf, PAGE_SIZE, "%s\n", 1019 phba->OptionROMVersion); 1020 1021 lpfc_decode_firmware_rev(phba, fwrev, 1); 1022 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 1023} 1024 1025/** 1026 * lpfc_link_state_show - Return the link state of the port 1027 * @dev: class converted to a Scsi_host structure. 1028 * @attr: device attribute, not used. 1029 * @buf: on return contains text describing the state of the link. 1030 * 1031 * Notes: 1032 * The switch statement has no default so zero will be returned. 1033 * 1034 * Returns: size of formatted string. 1035 **/ 1036static ssize_t 1037lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 1038 char *buf) 1039{ 1040 struct Scsi_Host *shost = class_to_shost(dev); 1041 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1042 struct lpfc_hba *phba = vport->phba; 1043 int len = 0; 1044 1045 switch (phba->link_state) { 1046 case LPFC_LINK_UNKNOWN: 1047 case LPFC_WARM_START: 1048 case LPFC_INIT_START: 1049 case LPFC_INIT_MBX_CMDS: 1050 case LPFC_LINK_DOWN: 1051 case LPFC_HBA_ERROR: 1052 if (phba->hba_flag & LINK_DISABLED) 1053 len += scnprintf(buf + len, PAGE_SIZE-len, 1054 "Link Down - User disabled\n"); 1055 else 1056 len += scnprintf(buf + len, PAGE_SIZE-len, 1057 "Link Down\n"); 1058 break; 1059 case LPFC_LINK_UP: 1060 case LPFC_CLEAR_LA: 1061 case LPFC_HBA_READY: 1062 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 1063 1064 switch (vport->port_state) { 1065 case LPFC_LOCAL_CFG_LINK: 1066 len += scnprintf(buf + len, PAGE_SIZE-len, 1067 "Configuring Link\n"); 1068 break; 1069 case LPFC_FDISC: 1070 case LPFC_FLOGI: 1071 case LPFC_FABRIC_CFG_LINK: 1072 case LPFC_NS_REG: 1073 case LPFC_NS_QRY: 1074 case LPFC_BUILD_DISC_LIST: 1075 case LPFC_DISC_AUTH: 1076 len += scnprintf(buf + len, PAGE_SIZE - len, 1077 "Discovery\n"); 1078 break; 1079 case LPFC_VPORT_READY: 1080 len += scnprintf(buf + len, PAGE_SIZE - len, 1081 "Ready\n"); 1082 break; 1083 1084 case LPFC_VPORT_FAILED: 1085 len += scnprintf(buf + len, PAGE_SIZE - len, 1086 "Failed\n"); 1087 break; 1088 1089 case LPFC_VPORT_UNKNOWN: 1090 len += scnprintf(buf + len, PAGE_SIZE - len, 1091 "Unknown\n"); 1092 break; 1093 } 1094 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1095 if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 1096 len += scnprintf(buf + len, PAGE_SIZE-len, 1097 " Public Loop\n"); 1098 else 1099 len += scnprintf(buf + len, PAGE_SIZE-len, 1100 " Private Loop\n"); 1101 } else { 1102 if (test_bit(FC_FABRIC, &vport->fc_flag)) { 1103 if (phba->sli_rev == LPFC_SLI_REV4 && 1104 vport->port_type == LPFC_PHYSICAL_PORT && 1105 phba->sli4_hba.fawwpn_flag & 1106 LPFC_FAWWPN_FABRIC) 1107 len += scnprintf(buf + len, 1108 PAGE_SIZE - len, 1109 " Fabric FA-PWWN\n"); 1110 else 1111 len += scnprintf(buf + len, 1112 PAGE_SIZE - len, 1113 " Fabric\n"); 1114 } else { 1115 len += scnprintf(buf + len, PAGE_SIZE-len, 1116 " Point-2-Point\n"); 1117 } 1118 } 1119 } 1120 1121 if ((phba->sli_rev == LPFC_SLI_REV4) && 1122 ((bf_get(lpfc_sli_intf_if_type, 1123 &phba->sli4_hba.sli_intf) == 1124 LPFC_SLI_INTF_IF_TYPE_6))) { 1125 struct lpfc_trunk_link link = phba->trunk_link; 1126 1127 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 1128 len += scnprintf(buf + len, PAGE_SIZE - len, 1129 "Trunk port 0: Link %s %s\n", 1130 (link.link0.state == LPFC_LINK_UP) ? 1131 "Up" : "Down. ", 1132 trunk_errmsg[link.link0.fault]); 1133 1134 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 1135 len += scnprintf(buf + len, PAGE_SIZE - len, 1136 "Trunk port 1: Link %s %s\n", 1137 (link.link1.state == LPFC_LINK_UP) ? 1138 "Up" : "Down. ", 1139 trunk_errmsg[link.link1.fault]); 1140 1141 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 1142 len += scnprintf(buf + len, PAGE_SIZE - len, 1143 "Trunk port 2: Link %s %s\n", 1144 (link.link2.state == LPFC_LINK_UP) ? 1145 "Up" : "Down. ", 1146 trunk_errmsg[link.link2.fault]); 1147 1148 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 1149 len += scnprintf(buf + len, PAGE_SIZE - len, 1150 "Trunk port 3: Link %s %s\n", 1151 (link.link3.state == LPFC_LINK_UP) ? 1152 "Up" : "Down. ", 1153 trunk_errmsg[link.link3.fault]); 1154 1155 } 1156 1157 return len; 1158} 1159 1160/** 1161 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1162 * @dev: class unused variable. 1163 * @attr: device attribute, not used. 1164 * @buf: on return contains the module description text. 1165 * 1166 * Returns: size of formatted string. 1167 **/ 1168static ssize_t 1169lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1170 char *buf) 1171{ 1172 struct Scsi_Host *shost = class_to_shost(dev); 1173 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1174 struct lpfc_hba *phba = vport->phba; 1175 1176 if (phba->sli_rev < LPFC_SLI_REV4) 1177 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1178 1179 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1180 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1181 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1182 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1183 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1184 } 1185 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1186} 1187 1188/** 1189 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1190 * (OAS) is supported. 1191 * @dev: class unused variable. 1192 * @attr: device attribute, not used. 1193 * @buf: on return contains the module description text. 1194 * 1195 * Returns: size of formatted string. 1196 **/ 1197static ssize_t 1198lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1199 char *buf) 1200{ 1201 struct Scsi_Host *shost = class_to_shost(dev); 1202 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1203 struct lpfc_hba *phba = vport->phba; 1204 1205 return scnprintf(buf, PAGE_SIZE, "%d\n", 1206 phba->sli4_hba.pc_sli4_params.oas_supported); 1207} 1208 1209/** 1210 * lpfc_link_state_store - Transition the link_state on an HBA port 1211 * @dev: class device that is converted into a Scsi_host. 1212 * @attr: device attribute, not used. 1213 * @buf: one or more lpfc_polling_flags values. 1214 * @count: not used. 1215 * 1216 * Returns: 1217 * -EINVAL if the buffer is not "up" or "down" 1218 * return from link state change function if non-zero 1219 * length of the buf on success 1220 **/ 1221static ssize_t 1222lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1223 const char *buf, size_t count) 1224{ 1225 struct Scsi_Host *shost = class_to_shost(dev); 1226 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1227 struct lpfc_hba *phba = vport->phba; 1228 1229 int status = -EINVAL; 1230 1231 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1232 (phba->link_state == LPFC_LINK_DOWN)) 1233 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1234 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1235 (phba->link_state >= LPFC_LINK_UP)) 1236 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1237 1238 if (status == 0) 1239 return strlen(buf); 1240 else 1241 return status; 1242} 1243 1244/** 1245 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1246 * @dev: class device that is converted into a Scsi_host. 1247 * @attr: device attribute, not used. 1248 * @buf: on return contains the sum of fc mapped and unmapped. 1249 * 1250 * Description: 1251 * Returns the ascii text number of the sum of the fc mapped and unmapped 1252 * vport counts. 1253 * 1254 * Returns: size of formatted string. 1255 **/ 1256static ssize_t 1257lpfc_num_discovered_ports_show(struct device *dev, 1258 struct device_attribute *attr, char *buf) 1259{ 1260 struct Scsi_Host *shost = class_to_shost(dev); 1261 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1262 1263 return scnprintf(buf, PAGE_SIZE, "%d\n", 1264 atomic_read(&vport->fc_map_cnt) + 1265 atomic_read(&vport->fc_unmap_cnt)); 1266} 1267 1268/** 1269 * lpfc_issue_lip - Misnomer, name carried over from long ago 1270 * @shost: Scsi_Host pointer. 1271 * 1272 * Description: 1273 * Bring the link down gracefully then re-init the link. The firmware will 1274 * re-init the fiber channel interface as required. Does not issue a LIP. 1275 * 1276 * Returns: 1277 * -EPERM port offline or management commands are being blocked 1278 * -ENOMEM cannot allocate memory for the mailbox command 1279 * -EIO error sending the mailbox command 1280 * zero for success 1281 **/ 1282static int 1283lpfc_issue_lip(struct Scsi_Host *shost) 1284{ 1285 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1286 struct lpfc_hba *phba = vport->phba; 1287 LPFC_MBOXQ_t *pmboxq; 1288 int mbxstatus = MBXERR_ERROR; 1289 1290 /* 1291 * If the link is offline, disabled or BLOCK_MGMT_IO 1292 * it doesn't make any sense to allow issue_lip 1293 */ 1294 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || 1295 (phba->hba_flag & LINK_DISABLED) || 1296 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1297 return -EPERM; 1298 1299 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1300 1301 if (!pmboxq) 1302 return -ENOMEM; 1303 1304 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1305 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1306 pmboxq->u.mb.mbxOwner = OWN_HOST; 1307 1308 if (test_bit(FC_PT2PT, &vport->fc_flag)) 1309 clear_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); 1310 1311 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1312 1313 if ((mbxstatus == MBX_SUCCESS) && 1314 (pmboxq->u.mb.mbxStatus == 0 || 1315 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1316 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1317 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1318 phba->cfg_link_speed); 1319 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1320 phba->fc_ratov * 2); 1321 if ((mbxstatus == MBX_SUCCESS) && 1322 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1323 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1324 "2859 SLI authentication is required " 1325 "for INIT_LINK but has not done yet\n"); 1326 } 1327 1328 lpfc_set_loopback_flag(phba); 1329 if (mbxstatus != MBX_TIMEOUT) 1330 mempool_free(pmboxq, phba->mbox_mem_pool); 1331 1332 if (mbxstatus == MBXERR_ERROR) 1333 return -EIO; 1334 1335 return 0; 1336} 1337 1338int 1339lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1340{ 1341 int cnt = 0; 1342 1343 spin_lock_irq(lock); 1344 while (!list_empty(q)) { 1345 spin_unlock_irq(lock); 1346 msleep(20); 1347 if (cnt++ > 250) { /* 5 secs */ 1348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1349 "0466 Outstanding IO when " 1350 "bringing Adapter offline\n"); 1351 return 0; 1352 } 1353 spin_lock_irq(lock); 1354 } 1355 spin_unlock_irq(lock); 1356 return 1; 1357} 1358 1359/** 1360 * lpfc_do_offline - Issues a mailbox command to bring the link down 1361 * @phba: lpfc_hba pointer. 1362 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1363 * 1364 * Notes: 1365 * Assumes any error from lpfc_do_offline() will be negative. 1366 * Can wait up to 5 seconds for the port ring buffers count 1367 * to reach zero, prints a warning if it is not zero and continues. 1368 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1369 * 1370 * Returns: 1371 * -EIO error posting the event 1372 * zero for success 1373 **/ 1374static int 1375lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1376{ 1377 struct completion online_compl; 1378 struct lpfc_queue *qp = NULL; 1379 struct lpfc_sli_ring *pring; 1380 struct lpfc_sli *psli; 1381 int status = 0; 1382 int i; 1383 int rc; 1384 1385 init_completion(&online_compl); 1386 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1387 LPFC_EVT_OFFLINE_PREP); 1388 if (rc == 0) 1389 return -ENOMEM; 1390 1391 wait_for_completion(&online_compl); 1392 1393 if (status != 0) 1394 return -EIO; 1395 1396 psli = &phba->sli; 1397 1398 /* 1399 * If freeing the queues have already started, don't access them. 1400 * Otherwise set FREE_WAIT to indicate that queues are being used 1401 * to hold the freeing process until we finish. 1402 */ 1403 spin_lock_irq(&phba->hbalock); 1404 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1405 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1406 } else { 1407 spin_unlock_irq(&phba->hbalock); 1408 goto skip_wait; 1409 } 1410 spin_unlock_irq(&phba->hbalock); 1411 1412 /* Wait a little for things to settle down, but not 1413 * long enough for dev loss timeout to expire. 1414 */ 1415 if (phba->sli_rev != LPFC_SLI_REV4) { 1416 for (i = 0; i < psli->num_rings; i++) { 1417 pring = &psli->sli3_ring[i]; 1418 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1419 &phba->hbalock)) 1420 goto out; 1421 } 1422 } else { 1423 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1424 pring = qp->pring; 1425 if (!pring) 1426 continue; 1427 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1428 &pring->ring_lock)) 1429 goto out; 1430 } 1431 } 1432out: 1433 spin_lock_irq(&phba->hbalock); 1434 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1435 spin_unlock_irq(&phba->hbalock); 1436 1437skip_wait: 1438 init_completion(&online_compl); 1439 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1440 if (rc == 0) 1441 return -ENOMEM; 1442 1443 wait_for_completion(&online_compl); 1444 1445 if (status != 0) 1446 return -EIO; 1447 1448 return 0; 1449} 1450 1451/** 1452 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1453 * @phba: lpfc_hba pointer. 1454 * 1455 * Description: 1456 * Issues a PCI secondary bus reset for the phba->pcidev. 1457 * 1458 * Notes: 1459 * First walks the bus_list to ensure only PCI devices with Emulex 1460 * vendor id, device ids that support hot reset, only one occurrence 1461 * of function 0, and all ports on the bus are in offline mode to ensure the 1462 * hot reset only affects one valid HBA. 1463 * 1464 * Returns: 1465 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1466 * -ENODEV, NULL ptr to pcidev 1467 * -EBADSLT, detected invalid device 1468 * -EBUSY, port is not in offline state 1469 * 0, successful 1470 */ 1471static int 1472lpfc_reset_pci_bus(struct lpfc_hba *phba) 1473{ 1474 struct pci_dev *pdev = phba->pcidev; 1475 struct Scsi_Host *shost = NULL; 1476 struct lpfc_hba *phba_other = NULL; 1477 struct pci_dev *ptr = NULL; 1478 int res; 1479 1480 if (phba->cfg_enable_hba_reset != 2) 1481 return -ENOTSUPP; 1482 1483 if (!pdev) { 1484 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1485 return -ENODEV; 1486 } 1487 1488 res = lpfc_check_pci_resettable(phba); 1489 if (res) 1490 return res; 1491 1492 /* Walk the list of devices on the pci_dev's bus */ 1493 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1494 /* Check port is offline */ 1495 shost = pci_get_drvdata(ptr); 1496 if (shost) { 1497 phba_other = 1498 ((struct lpfc_vport *)shost->hostdata)->phba; 1499 if (!test_bit(FC_OFFLINE_MODE, 1500 &phba_other->pport->fc_flag)) { 1501 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1502 "8349 WWPN = 0x%02x%02x%02x%02x" 1503 "%02x%02x%02x%02x is not " 1504 "offline!\n", 1505 phba_other->wwpn[0], 1506 phba_other->wwpn[1], 1507 phba_other->wwpn[2], 1508 phba_other->wwpn[3], 1509 phba_other->wwpn[4], 1510 phba_other->wwpn[5], 1511 phba_other->wwpn[6], 1512 phba_other->wwpn[7]); 1513 return -EBUSY; 1514 } 1515 } 1516 } 1517 1518 /* Issue PCI bus reset */ 1519 res = pci_reset_bus(pdev); 1520 if (res) { 1521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1522 "8350 PCI reset bus failed: %d\n", res); 1523 } 1524 1525 return res; 1526} 1527 1528/** 1529 * lpfc_selective_reset - Offline then onlines the port 1530 * @phba: lpfc_hba pointer. 1531 * 1532 * Description: 1533 * If the port is configured to allow a reset then the hba is brought 1534 * offline then online. 1535 * 1536 * Notes: 1537 * Assumes any error from lpfc_do_offline() will be negative. 1538 * Do not make this function static. 1539 * 1540 * Returns: 1541 * lpfc_do_offline() return code if not zero 1542 * -EIO reset not configured or error posting the event 1543 * zero for success 1544 **/ 1545int 1546lpfc_selective_reset(struct lpfc_hba *phba) 1547{ 1548 struct completion online_compl; 1549 int status = 0; 1550 int rc; 1551 1552 if (!phba->cfg_enable_hba_reset) 1553 return -EACCES; 1554 1555 if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) { 1556 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1557 1558 if (status != 0) 1559 return status; 1560 } 1561 1562 init_completion(&online_compl); 1563 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1564 LPFC_EVT_ONLINE); 1565 if (rc == 0) 1566 return -ENOMEM; 1567 1568 wait_for_completion(&online_compl); 1569 1570 if (status != 0) 1571 return -EIO; 1572 1573 return 0; 1574} 1575 1576/** 1577 * lpfc_issue_reset - Selectively resets an adapter 1578 * @dev: class device that is converted into a Scsi_host. 1579 * @attr: device attribute, not used. 1580 * @buf: containing the string "selective". 1581 * @count: unused variable. 1582 * 1583 * Description: 1584 * If the buf contains the string "selective" then lpfc_selective_reset() 1585 * is called to perform the reset. 1586 * 1587 * Notes: 1588 * Assumes any error from lpfc_selective_reset() will be negative. 1589 * If lpfc_selective_reset() returns zero then the length of the buffer 1590 * is returned which indicates success 1591 * 1592 * Returns: 1593 * -EINVAL if the buffer does not contain the string "selective" 1594 * length of buf if lpfc-selective_reset() if the call succeeds 1595 * return value of lpfc_selective_reset() if the call fails 1596**/ 1597static ssize_t 1598lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1599 const char *buf, size_t count) 1600{ 1601 struct Scsi_Host *shost = class_to_shost(dev); 1602 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1603 struct lpfc_hba *phba = vport->phba; 1604 int status = -EINVAL; 1605 1606 if (!phba->cfg_enable_hba_reset) 1607 return -EACCES; 1608 1609 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1610 status = phba->lpfc_selective_reset(phba); 1611 1612 if (status == 0) 1613 return strlen(buf); 1614 else 1615 return status; 1616} 1617 1618/** 1619 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1620 * @phba: lpfc_hba pointer. 1621 * 1622 * Description: 1623 * SLI4 interface type-2 device to wait on the sliport status register for 1624 * the readyness after performing a firmware reset. 1625 * 1626 * Returns: 1627 * zero for success, -EPERM when port does not have privilege to perform the 1628 * reset, -EIO when port timeout from recovering from the reset. 1629 * 1630 * Note: 1631 * As the caller will interpret the return code by value, be careful in making 1632 * change or addition to return codes. 1633 **/ 1634int 1635lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1636{ 1637 struct lpfc_register portstat_reg = {0}; 1638 int i; 1639 1640 msleep(100); 1641 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1642 &portstat_reg.word0)) 1643 return -EIO; 1644 1645 /* verify if privileged for the request operation */ 1646 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1647 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1648 return -EPERM; 1649 1650 /* There is no point to wait if the port is in an unrecoverable 1651 * state. 1652 */ 1653 if (lpfc_sli4_unrecoverable_port(&portstat_reg)) 1654 return -EIO; 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 **/ 1689static ssize_t 1690lpfc_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 unsigned long 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 (test_bit(FC_OFFLINE_MODE, &before_fc_flag)) { 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 } 1786out: 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 **/ 1819static ssize_t 1820lpfc_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 1830static int 1831lpfc_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 1889static ssize_t 1890lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr, 1891 char *buf) 1892{ 1893 struct Scsi_Host *shost = class_to_shost(dev); 1894 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1895 struct lpfc_hba *phba = vport->phba; 1896 int rc; 1897 int len = 0; 1898 struct lpfc_rdp_context *rdp_context; 1899 u16 temperature; 1900 u16 rx_power; 1901 u16 tx_bias; 1902 u16 tx_power; 1903 u16 vcc; 1904 char chbuf[128]; 1905 u16 wavelength = 0; 1906 struct sff_trasnceiver_codes_byte7 *trasn_code_byte7; 1907 1908 /* Get transceiver information */ 1909 rdp_context = kmalloc(sizeof(*rdp_context), GFP_KERNEL); 1910 1911 rc = lpfc_get_sfp_info_wait(phba, rdp_context); 1912 if (rc) { 1913 len = scnprintf(buf, PAGE_SIZE - len, "SFP info NA:\n"); 1914 goto out_free_rdp; 1915 } 1916 1917 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16); 1918 1919 len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf); 1920 len += scnprintf(buf + len, PAGE_SIZE - len, 1921 "VendorOUI:\t%02x-%02x-%02x\n", 1922 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI], 1923 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1], 1924 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]); 1925 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16); 1926 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf); 1927 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16); 1928 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf); 1929 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4); 1930 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf); 1931 strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8); 1932 len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf); 1933 len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n", 1934 (uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]); 1935 len += scnprintf(buf + len, PAGE_SIZE - len, "ExtIdentifier:\t%xh\n", 1936 (uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]); 1937 len += scnprintf(buf + len, PAGE_SIZE - len, "Connector:\t%xh\n", 1938 (uint8_t)rdp_context->page_a0[SSF_CONNECTOR]); 1939 wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) | 1940 rdp_context->page_a0[SSF_WAVELENGTH_B0]; 1941 1942 len += scnprintf(buf + len, PAGE_SIZE - len, "Wavelength:\t%d nm\n", 1943 wavelength); 1944 trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *) 1945 &rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7]; 1946 1947 len += scnprintf(buf + len, PAGE_SIZE - len, "Speeds: \t"); 1948 if (*(uint8_t *)trasn_code_byte7 == 0) { 1949 len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); 1950 } else { 1951 if (trasn_code_byte7->fc_sp_100MB) 1952 len += scnprintf(buf + len, PAGE_SIZE - len, "1 "); 1953 if (trasn_code_byte7->fc_sp_200mb) 1954 len += scnprintf(buf + len, PAGE_SIZE - len, "2 "); 1955 if (trasn_code_byte7->fc_sp_400MB) 1956 len += scnprintf(buf + len, PAGE_SIZE - len, "4 "); 1957 if (trasn_code_byte7->fc_sp_800MB) 1958 len += scnprintf(buf + len, PAGE_SIZE - len, "8 "); 1959 if (trasn_code_byte7->fc_sp_1600MB) 1960 len += scnprintf(buf + len, PAGE_SIZE - len, "16 "); 1961 if (trasn_code_byte7->fc_sp_3200MB) 1962 len += scnprintf(buf + len, PAGE_SIZE - len, "32 "); 1963 if (trasn_code_byte7->speed_chk_ecc) 1964 len += scnprintf(buf + len, PAGE_SIZE - len, "64 "); 1965 len += scnprintf(buf + len, PAGE_SIZE - len, "GB\n"); 1966 } 1967 temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 | 1968 rdp_context->page_a2[SFF_TEMPERATURE_B0]); 1969 vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 | 1970 rdp_context->page_a2[SFF_VCC_B0]); 1971 tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 | 1972 rdp_context->page_a2[SFF_TXPOWER_B0]); 1973 tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 1974 rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]); 1975 rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 | 1976 rdp_context->page_a2[SFF_RXPOWER_B0]); 1977 1978 len += scnprintf(buf + len, PAGE_SIZE - len, 1979 "Temperature:\tx%04x C\n", temperature); 1980 len += scnprintf(buf + len, PAGE_SIZE - len, "Vcc:\t\tx%04x V\n", vcc); 1981 len += scnprintf(buf + len, PAGE_SIZE - len, 1982 "TxBiasCurrent:\tx%04x mA\n", tx_bias); 1983 len += scnprintf(buf + len, PAGE_SIZE - len, "TxPower:\tx%04x mW\n", 1984 tx_power); 1985 len += scnprintf(buf + len, PAGE_SIZE - len, "RxPower:\tx%04x mW\n", 1986 rx_power); 1987out_free_rdp: 1988 kfree(rdp_context); 1989 return len; 1990} 1991 1992/** 1993 * lpfc_board_mode_show - Return the state of the board 1994 * @dev: class device that is converted into a Scsi_host. 1995 * @attr: device attribute, not used. 1996 * @buf: on return contains the state of the adapter. 1997 * 1998 * Returns: size of formatted string. 1999 **/ 2000static ssize_t 2001lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 2002 char *buf) 2003{ 2004 struct Scsi_Host *shost = class_to_shost(dev); 2005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2006 struct lpfc_hba *phba = vport->phba; 2007 char * state; 2008 2009 if (phba->link_state == LPFC_HBA_ERROR) 2010 state = "error"; 2011 else if (phba->link_state == LPFC_WARM_START) 2012 state = "warm start"; 2013 else if (phba->link_state == LPFC_INIT_START) 2014 state = "offline"; 2015 else 2016 state = "online"; 2017 2018 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 2019} 2020 2021/** 2022 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 2023 * @dev: class device that is converted into a Scsi_host. 2024 * @attr: device attribute, not used. 2025 * @buf: containing one of the strings "online", "offline", "warm" or "error". 2026 * @count: unused variable. 2027 * 2028 * Returns: 2029 * -EACCES if enable hba reset not enabled 2030 * -EINVAL if the buffer does not contain a valid string (see above) 2031 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 2032 * buf length greater than zero indicates success 2033 **/ 2034static ssize_t 2035lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 2036 const char *buf, size_t count) 2037{ 2038 struct Scsi_Host *shost = class_to_shost(dev); 2039 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2040 struct lpfc_hba *phba = vport->phba; 2041 struct completion online_compl; 2042 char *board_mode_str = NULL; 2043 int status = 0; 2044 int rc; 2045 2046 if (!phba->cfg_enable_hba_reset) { 2047 status = -EACCES; 2048 goto board_mode_out; 2049 } 2050 2051 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2052 "3050 lpfc_board_mode set to %s\n", buf); 2053 2054 init_completion(&online_compl); 2055 2056 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 2057 rc = lpfc_workq_post_event(phba, &status, &online_compl, 2058 LPFC_EVT_ONLINE); 2059 if (rc == 0) { 2060 status = -ENOMEM; 2061 goto board_mode_out; 2062 } 2063 wait_for_completion(&online_compl); 2064 if (status) 2065 status = -EIO; 2066 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 2067 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2068 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 2069 if (phba->sli_rev == LPFC_SLI_REV4) 2070 status = -EINVAL; 2071 else 2072 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 2073 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 2074 if (phba->sli_rev == LPFC_SLI_REV4) 2075 status = -EINVAL; 2076 else 2077 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 2078 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 2079 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 2080 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 2081 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 2082 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 2083 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 2084 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 2085 == 0) 2086 status = lpfc_reset_pci_bus(phba); 2087 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 2088 lpfc_issue_hb_tmo(phba); 2089 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 2090 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 2091 else 2092 status = -EINVAL; 2093 2094board_mode_out: 2095 if (!status) 2096 return strlen(buf); 2097 else { 2098 board_mode_str = strchr(buf, '\n'); 2099 if (board_mode_str) 2100 *board_mode_str = '\0'; 2101 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2102 "3097 Failed \"%s\", status(%d), " 2103 "fc_flag(x%lx)\n", 2104 buf, status, phba->pport->fc_flag); 2105 return status; 2106 } 2107} 2108 2109/** 2110 * lpfc_get_hba_info - Return various bits of informaton about the adapter 2111 * @phba: pointer to the adapter structure. 2112 * @mxri: max xri count. 2113 * @axri: available xri count. 2114 * @mrpi: max rpi count. 2115 * @arpi: available rpi count. 2116 * @mvpi: max vpi count. 2117 * @avpi: available vpi count. 2118 * 2119 * Description: 2120 * If an integer pointer for an count is not null then the value for the 2121 * count is returned. 2122 * 2123 * Returns: 2124 * zero on error 2125 * one for success 2126 **/ 2127static int 2128lpfc_get_hba_info(struct lpfc_hba *phba, 2129 uint32_t *mxri, uint32_t *axri, 2130 uint32_t *mrpi, uint32_t *arpi, 2131 uint32_t *mvpi, uint32_t *avpi) 2132{ 2133 LPFC_MBOXQ_t *pmboxq; 2134 MAILBOX_t *pmb; 2135 int rc = 0; 2136 struct lpfc_sli4_hba *sli4_hba; 2137 struct lpfc_max_cfg_param *max_cfg_param; 2138 u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi; 2139 2140 /* 2141 * prevent udev from issuing mailbox commands until the port is 2142 * configured. 2143 */ 2144 if (phba->link_state < LPFC_LINK_DOWN || 2145 !phba->mbox_mem_pool || 2146 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2147 return 0; 2148 2149 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2150 return 0; 2151 2152 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2153 if (!pmboxq) 2154 return 0; 2155 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2156 2157 pmb = &pmboxq->u.mb; 2158 pmb->mbxCommand = MBX_READ_CONFIG; 2159 pmb->mbxOwner = OWN_HOST; 2160 pmboxq->ctx_buf = NULL; 2161 2162 if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) 2163 rc = MBX_NOT_FINISHED; 2164 else 2165 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2166 2167 if (rc != MBX_SUCCESS) { 2168 if (rc != MBX_TIMEOUT) 2169 mempool_free(pmboxq, phba->mbox_mem_pool); 2170 return 0; 2171 } 2172 2173 if (phba->sli_rev == LPFC_SLI_REV4) { 2174 sli4_hba = &phba->sli4_hba; 2175 max_cfg_param = &sli4_hba->max_cfg_param; 2176 2177 /* Normally, extents are not used */ 2178 if (!phba->sli4_hba.extents_in_use) { 2179 if (mrpi) 2180 *mrpi = max_cfg_param->max_rpi; 2181 if (mxri) 2182 *mxri = max_cfg_param->max_xri; 2183 if (mvpi) { 2184 max_vpi = max_cfg_param->max_vpi; 2185 2186 /* Limit the max we support */ 2187 if (max_vpi > LPFC_MAX_VPI) 2188 max_vpi = LPFC_MAX_VPI; 2189 *mvpi = max_vpi; 2190 } 2191 } else { /* Extents in use */ 2192 if (mrpi) { 2193 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2194 LPFC_RSC_TYPE_FCOE_RPI, 2195 &rsrc_ext_cnt, 2196 &rsrc_ext_size)) { 2197 rc = 0; 2198 goto free_pmboxq; 2199 } 2200 2201 *mrpi = rsrc_ext_cnt * rsrc_ext_size; 2202 } 2203 2204 if (mxri) { 2205 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2206 LPFC_RSC_TYPE_FCOE_XRI, 2207 &rsrc_ext_cnt, 2208 &rsrc_ext_size)) { 2209 rc = 0; 2210 goto free_pmboxq; 2211 } 2212 2213 *mxri = rsrc_ext_cnt * rsrc_ext_size; 2214 } 2215 2216 if (mvpi) { 2217 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2218 LPFC_RSC_TYPE_FCOE_VPI, 2219 &rsrc_ext_cnt, 2220 &rsrc_ext_size)) { 2221 rc = 0; 2222 goto free_pmboxq; 2223 } 2224 2225 max_vpi = rsrc_ext_cnt * rsrc_ext_size; 2226 2227 /* Limit the max we support */ 2228 if (max_vpi > LPFC_MAX_VPI) 2229 max_vpi = LPFC_MAX_VPI; 2230 *mvpi = max_vpi; 2231 } 2232 } 2233 } else { 2234 if (mrpi) 2235 *mrpi = pmb->un.varRdConfig.max_rpi; 2236 if (arpi) 2237 *arpi = pmb->un.varRdConfig.avail_rpi; 2238 if (mxri) 2239 *mxri = pmb->un.varRdConfig.max_xri; 2240 if (axri) 2241 *axri = pmb->un.varRdConfig.avail_xri; 2242 if (mvpi) 2243 *mvpi = pmb->un.varRdConfig.max_vpi; 2244 if (avpi) { 2245 /* avail_vpi is only valid if link is up and ready */ 2246 if (phba->link_state == LPFC_HBA_READY) 2247 *avpi = pmb->un.varRdConfig.avail_vpi; 2248 else 2249 *avpi = pmb->un.varRdConfig.max_vpi; 2250 } 2251 } 2252 2253 /* Success */ 2254 rc = 1; 2255 2256free_pmboxq: 2257 mempool_free(pmboxq, phba->mbox_mem_pool); 2258 return rc; 2259} 2260 2261/** 2262 * lpfc_max_rpi_show - Return maximum rpi 2263 * @dev: class device that is converted into a Scsi_host. 2264 * @attr: device attribute, not used. 2265 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2266 * 2267 * Description: 2268 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2269 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2270 * to "Unknown" and the buffer length is returned, therefore the caller 2271 * must check for "Unknown" in the buffer to detect a failure. 2272 * 2273 * Returns: size of formatted string. 2274 **/ 2275static ssize_t 2276lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2277 char *buf) 2278{ 2279 struct Scsi_Host *shost = class_to_shost(dev); 2280 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2281 struct lpfc_hba *phba = vport->phba; 2282 uint32_t cnt; 2283 2284 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2285 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2286 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2287} 2288 2289/** 2290 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2291 * @dev: class device that is converted into a Scsi_host. 2292 * @attr: device attribute, not used. 2293 * @buf: containing the used rpi count in decimal or "Unknown". 2294 * 2295 * Description: 2296 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 2297 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2298 * to "Unknown" and the buffer length is returned, therefore the caller 2299 * must check for "Unknown" in the buffer to detect a failure. 2300 * 2301 * Returns: size of formatted string. 2302 **/ 2303static ssize_t 2304lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 2305 char *buf) 2306{ 2307 struct Scsi_Host *shost = class_to_shost(dev); 2308 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2309 struct lpfc_hba *phba = vport->phba; 2310 struct lpfc_sli4_hba *sli4_hba; 2311 struct lpfc_max_cfg_param *max_cfg_param; 2312 u32 cnt = 0, acnt = 0; 2313 2314 if (phba->sli_rev == LPFC_SLI_REV4) { 2315 sli4_hba = &phba->sli4_hba; 2316 max_cfg_param = &sli4_hba->max_cfg_param; 2317 return scnprintf(buf, PAGE_SIZE, "%d\n", 2318 max_cfg_param->rpi_used); 2319 } else { 2320 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2321 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2322 } 2323 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2324} 2325 2326/** 2327 * lpfc_max_xri_show - Return maximum xri 2328 * @dev: class device that is converted into a Scsi_host. 2329 * @attr: device attribute, not used. 2330 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2331 * 2332 * Description: 2333 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2334 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2335 * to "Unknown" and the buffer length is returned, therefore the caller 2336 * must check for "Unknown" in the buffer to detect a failure. 2337 * 2338 * Returns: size of formatted string. 2339 **/ 2340static ssize_t 2341lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2342 char *buf) 2343{ 2344 struct Scsi_Host *shost = class_to_shost(dev); 2345 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2346 struct lpfc_hba *phba = vport->phba; 2347 uint32_t cnt; 2348 2349 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2350 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2351 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2352} 2353 2354/** 2355 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2356 * @dev: class device that is converted into a Scsi_host. 2357 * @attr: device attribute, not used. 2358 * @buf: on return contains the used xri count in decimal or "Unknown". 2359 * 2360 * Description: 2361 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2362 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2363 * to "Unknown" and the buffer length is returned, therefore the caller 2364 * must check for "Unknown" in the buffer to detect a failure. 2365 * 2366 * Returns: size of formatted string. 2367 **/ 2368static ssize_t 2369lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2370 char *buf) 2371{ 2372 struct Scsi_Host *shost = class_to_shost(dev); 2373 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2374 struct lpfc_hba *phba = vport->phba; 2375 struct lpfc_sli4_hba *sli4_hba; 2376 struct lpfc_max_cfg_param *max_cfg_param; 2377 u32 cnt = 0, acnt = 0; 2378 2379 if (phba->sli_rev == LPFC_SLI_REV4) { 2380 sli4_hba = &phba->sli4_hba; 2381 max_cfg_param = &sli4_hba->max_cfg_param; 2382 return scnprintf(buf, PAGE_SIZE, "%d\n", 2383 max_cfg_param->xri_used); 2384 } else { 2385 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2386 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2387 } 2388 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2389} 2390 2391/** 2392 * lpfc_max_vpi_show - Return maximum vpi 2393 * @dev: class device that is converted into a Scsi_host. 2394 * @attr: device attribute, not used. 2395 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2396 * 2397 * Description: 2398 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2399 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2400 * to "Unknown" and the buffer length is returned, therefore the caller 2401 * must check for "Unknown" in the buffer to detect a failure. 2402 * 2403 * Returns: size of formatted string. 2404 **/ 2405static ssize_t 2406lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2407 char *buf) 2408{ 2409 struct Scsi_Host *shost = class_to_shost(dev); 2410 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2411 struct lpfc_hba *phba = vport->phba; 2412 uint32_t cnt; 2413 2414 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2415 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2416 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2417} 2418 2419/** 2420 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2421 * @dev: class device that is converted into a Scsi_host. 2422 * @attr: device attribute, not used. 2423 * @buf: on return contains the used vpi count in decimal or "Unknown". 2424 * 2425 * Description: 2426 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2427 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2428 * to "Unknown" and the buffer length is returned, therefore the caller 2429 * must check for "Unknown" in the buffer to detect a failure. 2430 * 2431 * Returns: size of formatted string. 2432 **/ 2433static ssize_t 2434lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2435 char *buf) 2436{ 2437 struct Scsi_Host *shost = class_to_shost(dev); 2438 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2439 struct lpfc_hba *phba = vport->phba; 2440 struct lpfc_sli4_hba *sli4_hba; 2441 struct lpfc_max_cfg_param *max_cfg_param; 2442 u32 cnt = 0, acnt = 0; 2443 2444 if (phba->sli_rev == LPFC_SLI_REV4) { 2445 sli4_hba = &phba->sli4_hba; 2446 max_cfg_param = &sli4_hba->max_cfg_param; 2447 return scnprintf(buf, PAGE_SIZE, "%d\n", 2448 max_cfg_param->vpi_used); 2449 } else { 2450 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2451 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2452 } 2453 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2454} 2455 2456/** 2457 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2458 * @dev: class device that is converted into a Scsi_host. 2459 * @attr: device attribute, not used. 2460 * @buf: text that must be interpreted to determine if npiv is supported. 2461 * 2462 * Description: 2463 * Buffer will contain text indicating npiv is not suppoerted on the port, 2464 * the port is an NPIV physical port, or it is an npiv virtual port with 2465 * the id of the vport. 2466 * 2467 * Returns: size of formatted string. 2468 **/ 2469static ssize_t 2470lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2471 char *buf) 2472{ 2473 struct Scsi_Host *shost = class_to_shost(dev); 2474 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2475 struct lpfc_hba *phba = vport->phba; 2476 2477 if (!(phba->max_vpi)) 2478 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2479 if (vport->port_type == LPFC_PHYSICAL_PORT) 2480 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2481 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2482} 2483 2484/** 2485 * lpfc_poll_show - Return text about poll support for the adapter 2486 * @dev: class device that is converted into a Scsi_host. 2487 * @attr: device attribute, not used. 2488 * @buf: on return contains the cfg_poll in hex. 2489 * 2490 * Notes: 2491 * cfg_poll should be a lpfc_polling_flags type. 2492 * 2493 * Returns: size of formatted string. 2494 **/ 2495static ssize_t 2496lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2497 char *buf) 2498{ 2499 struct Scsi_Host *shost = class_to_shost(dev); 2500 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2501 struct lpfc_hba *phba = vport->phba; 2502 2503 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2504} 2505 2506/** 2507 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2508 * @dev: class device that is converted into a Scsi_host. 2509 * @attr: device attribute, not used. 2510 * @buf: one or more lpfc_polling_flags values. 2511 * @count: not used. 2512 * 2513 * Notes: 2514 * buf contents converted to integer and checked for a valid value. 2515 * 2516 * Returns: 2517 * -EINVAL if the buffer connot be converted or is out of range 2518 * length of the buf on success 2519 **/ 2520static ssize_t 2521lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2522 const char *buf, size_t count) 2523{ 2524 struct Scsi_Host *shost = class_to_shost(dev); 2525 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2526 struct lpfc_hba *phba = vport->phba; 2527 uint32_t creg_val; 2528 uint32_t old_val; 2529 int val=0; 2530 2531 if (!isdigit(buf[0])) 2532 return -EINVAL; 2533 2534 if (sscanf(buf, "%i", &val) != 1) 2535 return -EINVAL; 2536 2537 if ((val & 0x3) != val) 2538 return -EINVAL; 2539 2540 if (phba->sli_rev == LPFC_SLI_REV4) 2541 val = 0; 2542 2543 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2544 "3051 lpfc_poll changed from %d to %d\n", 2545 phba->cfg_poll, val); 2546 2547 spin_lock_irq(&phba->hbalock); 2548 2549 old_val = phba->cfg_poll; 2550 2551 if (val & ENABLE_FCP_RING_POLLING) { 2552 if ((val & DISABLE_FCP_RING_INT) && 2553 !(old_val & DISABLE_FCP_RING_INT)) { 2554 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2555 spin_unlock_irq(&phba->hbalock); 2556 return -EINVAL; 2557 } 2558 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2559 writel(creg_val, phba->HCregaddr); 2560 readl(phba->HCregaddr); /* flush */ 2561 2562 lpfc_poll_start_timer(phba); 2563 } 2564 } else if (val != 0x0) { 2565 spin_unlock_irq(&phba->hbalock); 2566 return -EINVAL; 2567 } 2568 2569 if (!(val & DISABLE_FCP_RING_INT) && 2570 (old_val & DISABLE_FCP_RING_INT)) 2571 { 2572 spin_unlock_irq(&phba->hbalock); 2573 del_timer(&phba->fcp_poll_timer); 2574 spin_lock_irq(&phba->hbalock); 2575 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2576 spin_unlock_irq(&phba->hbalock); 2577 return -EINVAL; 2578 } 2579 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2580 writel(creg_val, phba->HCregaddr); 2581 readl(phba->HCregaddr); /* flush */ 2582 } 2583 2584 phba->cfg_poll = val; 2585 2586 spin_unlock_irq(&phba->hbalock); 2587 2588 return strlen(buf); 2589} 2590 2591/** 2592 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2593 * @dev: class converted to a Scsi_host structure. 2594 * @attr: device attribute, not used. 2595 * @buf: on return contains the formatted support level. 2596 * 2597 * Description: 2598 * Returns the maximum number of virtual functions a physical function can 2599 * support, 0 will be returned if called on virtual function. 2600 * 2601 * Returns: size of formatted string. 2602 **/ 2603static ssize_t 2604lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2605 struct device_attribute *attr, 2606 char *buf) 2607{ 2608 struct Scsi_Host *shost = class_to_shost(dev); 2609 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2610 struct lpfc_hba *phba = vport->phba; 2611 uint16_t max_nr_virtfn; 2612 2613 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2614 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2615} 2616 2617/** 2618 * lpfc_enable_bbcr_set: Sets an attribute value. 2619 * @phba: pointer to the adapter structure. 2620 * @val: integer attribute value. 2621 * 2622 * Description: 2623 * Validates the min and max values then sets the 2624 * adapter config field if in the valid range. prints error message 2625 * and does not set the parameter if invalid. 2626 * 2627 * Returns: 2628 * zero on success 2629 * -EINVAL if val is invalid 2630 */ 2631static ssize_t 2632lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2633{ 2634 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2636 "3068 lpfc_enable_bbcr changed from %d to " 2637 "%d\n", phba->cfg_enable_bbcr, val); 2638 phba->cfg_enable_bbcr = val; 2639 return 0; 2640 } 2641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2642 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2643 "1\n", val); 2644 return -EINVAL; 2645} 2646 2647/* 2648 * lpfc_param_show - Return a cfg attribute value in decimal 2649 * 2650 * Description: 2651 * Macro that given an attr e.g. hba_queue_depth expands 2652 * into a function with the name lpfc_hba_queue_depth_show. 2653 * 2654 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2655 * @dev: class device that is converted into a Scsi_host. 2656 * @attr: device attribute, not used. 2657 * @buf: on return contains the attribute value in decimal. 2658 * 2659 * Returns: size of formatted string. 2660 **/ 2661#define lpfc_param_show(attr) \ 2662static ssize_t \ 2663lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2664 char *buf) \ 2665{ \ 2666 struct Scsi_Host *shost = class_to_shost(dev);\ 2667 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2668 struct lpfc_hba *phba = vport->phba;\ 2669 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2670 phba->cfg_##attr);\ 2671} 2672 2673/* 2674 * lpfc_param_hex_show - Return a cfg attribute value in hex 2675 * 2676 * Description: 2677 * Macro that given an attr e.g. hba_queue_depth expands 2678 * into a function with the name lpfc_hba_queue_depth_show 2679 * 2680 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2681 * @dev: class device that is converted into a Scsi_host. 2682 * @attr: device attribute, not used. 2683 * @buf: on return contains the attribute value in hexadecimal. 2684 * 2685 * Returns: size of formatted string. 2686 **/ 2687#define lpfc_param_hex_show(attr) \ 2688static ssize_t \ 2689lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2690 char *buf) \ 2691{ \ 2692 struct Scsi_Host *shost = class_to_shost(dev);\ 2693 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2694 struct lpfc_hba *phba = vport->phba;\ 2695 uint val = 0;\ 2696 val = phba->cfg_##attr;\ 2697 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2698 phba->cfg_##attr);\ 2699} 2700 2701/* 2702 * lpfc_param_init - Initializes a cfg attribute 2703 * 2704 * Description: 2705 * Macro that given an attr e.g. hba_queue_depth expands 2706 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2707 * takes a default argument, a minimum and maximum argument. 2708 * 2709 * lpfc_##attr##_init: Initializes an attribute. 2710 * @phba: pointer to the adapter structure. 2711 * @val: integer attribute value. 2712 * 2713 * Validates the min and max values then sets the adapter config field 2714 * accordingly, or uses the default if out of range and prints an error message. 2715 * 2716 * Returns: 2717 * zero on success 2718 * -EINVAL if default used 2719 **/ 2720#define lpfc_param_init(attr, default, minval, maxval) \ 2721static int \ 2722lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2723{ \ 2724 if (lpfc_rangecheck(val, minval, maxval)) {\ 2725 phba->cfg_##attr = val;\ 2726 return 0;\ 2727 }\ 2728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2729 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2730 "allowed range is ["#minval", "#maxval"]\n", val); \ 2731 phba->cfg_##attr = default;\ 2732 return -EINVAL;\ 2733} 2734 2735/* 2736 * lpfc_param_set - Set a cfg attribute value 2737 * 2738 * Description: 2739 * Macro that given an attr e.g. hba_queue_depth expands 2740 * into a function with the name lpfc_hba_queue_depth_set 2741 * 2742 * lpfc_##attr##_set: Sets an attribute value. 2743 * @phba: pointer to the adapter structure. 2744 * @val: integer attribute value. 2745 * 2746 * Description: 2747 * Validates the min and max values then sets the 2748 * adapter config field if in the valid range. prints error message 2749 * and does not set the parameter if invalid. 2750 * 2751 * Returns: 2752 * zero on success 2753 * -EINVAL if val is invalid 2754 **/ 2755#define lpfc_param_set(attr, default, minval, maxval) \ 2756static int \ 2757lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2758{ \ 2759 if (lpfc_rangecheck(val, minval, maxval)) {\ 2760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2761 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2762 phba->cfg_##attr, val); \ 2763 phba->cfg_##attr = val;\ 2764 return 0;\ 2765 }\ 2766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2767 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2768 "allowed range is ["#minval", "#maxval"]\n", val); \ 2769 return -EINVAL;\ 2770} 2771 2772/* 2773 * lpfc_param_store - Set a vport attribute value 2774 * 2775 * Description: 2776 * Macro that given an attr e.g. hba_queue_depth expands 2777 * into a function with the name lpfc_hba_queue_depth_store. 2778 * 2779 * lpfc_##attr##_store: Set an sttribute value. 2780 * @dev: class device that is converted into a Scsi_host. 2781 * @attr: device attribute, not used. 2782 * @buf: contains the attribute value in ascii. 2783 * @count: not used. 2784 * 2785 * Description: 2786 * Convert the ascii text number to an integer, then 2787 * use the lpfc_##attr##_set function to set the value. 2788 * 2789 * Returns: 2790 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2791 * length of buffer upon success. 2792 **/ 2793#define lpfc_param_store(attr) \ 2794static ssize_t \ 2795lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2796 const char *buf, size_t count) \ 2797{ \ 2798 struct Scsi_Host *shost = class_to_shost(dev);\ 2799 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2800 struct lpfc_hba *phba = vport->phba;\ 2801 uint val = 0;\ 2802 if (!isdigit(buf[0]))\ 2803 return -EINVAL;\ 2804 if (sscanf(buf, "%i", &val) != 1)\ 2805 return -EINVAL;\ 2806 if (lpfc_##attr##_set(phba, val) == 0) \ 2807 return strlen(buf);\ 2808 else \ 2809 return -EINVAL;\ 2810} 2811 2812/* 2813 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2814 * 2815 * Description: 2816 * Macro that given an attr e.g. hba_queue_depth expands 2817 * into a function with the name lpfc_hba_queue_depth_show 2818 * 2819 * lpfc_##attr##_show: prints the attribute value in decimal. 2820 * @dev: class device that is converted into a Scsi_host. 2821 * @attr: device attribute, not used. 2822 * @buf: on return contains the attribute value in decimal. 2823 * 2824 * Returns: length of formatted string. 2825 **/ 2826#define lpfc_vport_param_show(attr) \ 2827static ssize_t \ 2828lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2829 char *buf) \ 2830{ \ 2831 struct Scsi_Host *shost = class_to_shost(dev);\ 2832 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2833 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2834} 2835 2836/* 2837 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2838 * 2839 * Description: 2840 * Macro that given an attr e.g. 2841 * hba_queue_depth expands into a function with the name 2842 * lpfc_hba_queue_depth_show 2843 * 2844 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2845 * @dev: class device that is converted into a Scsi_host. 2846 * @attr: device attribute, not used. 2847 * @buf: on return contains the attribute value in hexadecimal. 2848 * 2849 * Returns: length of formatted string. 2850 **/ 2851#define lpfc_vport_param_hex_show(attr) \ 2852static ssize_t \ 2853lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2854 char *buf) \ 2855{ \ 2856 struct Scsi_Host *shost = class_to_shost(dev);\ 2857 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2858 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2859} 2860 2861/* 2862 * lpfc_vport_param_init - Initialize a vport cfg attribute 2863 * 2864 * Description: 2865 * Macro that given an attr e.g. hba_queue_depth expands 2866 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2867 * takes a default argument, a minimum and maximum argument. 2868 * 2869 * lpfc_##attr##_init: validates the min and max values then sets the 2870 * adapter config field accordingly, or uses the default if out of range 2871 * and prints an error message. 2872 * @phba: pointer to the adapter structure. 2873 * @val: integer attribute value. 2874 * 2875 * Returns: 2876 * zero on success 2877 * -EINVAL if default used 2878 **/ 2879#define lpfc_vport_param_init(attr, default, minval, maxval) \ 2880static int \ 2881lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2882{ \ 2883 if (lpfc_rangecheck(val, minval, maxval)) {\ 2884 vport->cfg_##attr = val;\ 2885 return 0;\ 2886 }\ 2887 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2888 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2889 "allowed range is ["#minval", "#maxval"]\n", val); \ 2890 vport->cfg_##attr = default;\ 2891 return -EINVAL;\ 2892} 2893 2894/* 2895 * lpfc_vport_param_set - Set a vport cfg attribute 2896 * 2897 * Description: 2898 * Macro that given an attr e.g. hba_queue_depth expands 2899 * into a function with the name lpfc_hba_queue_depth_set 2900 * 2901 * lpfc_##attr##_set: validates the min and max values then sets the 2902 * adapter config field if in the valid range. prints error message 2903 * and does not set the parameter if invalid. 2904 * @phba: pointer to the adapter structure. 2905 * @val: integer attribute value. 2906 * 2907 * Returns: 2908 * zero on success 2909 * -EINVAL if val is invalid 2910 **/ 2911#define lpfc_vport_param_set(attr, default, minval, maxval) \ 2912static int \ 2913lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2914{ \ 2915 if (lpfc_rangecheck(val, minval, maxval)) {\ 2916 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2917 "3053 lpfc_" #attr \ 2918 " changed from %d (x%x) to %d (x%x)\n", \ 2919 vport->cfg_##attr, vport->cfg_##attr, \ 2920 val, val); \ 2921 vport->cfg_##attr = val;\ 2922 return 0;\ 2923 }\ 2924 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2925 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2926 "allowed range is ["#minval", "#maxval"]\n", val); \ 2927 return -EINVAL;\ 2928} 2929 2930/* 2931 * lpfc_vport_param_store - Set a vport attribute 2932 * 2933 * Description: 2934 * Macro that given an attr e.g. hba_queue_depth 2935 * expands into a function with the name lpfc_hba_queue_depth_store 2936 * 2937 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2938 * use the lpfc_##attr##_set function to set the value. 2939 * @cdev: class device that is converted into a Scsi_host. 2940 * @buf: contains the attribute value in decimal. 2941 * @count: not used. 2942 * 2943 * Returns: 2944 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2945 * length of buffer upon success. 2946 **/ 2947#define lpfc_vport_param_store(attr) \ 2948static ssize_t \ 2949lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2950 const char *buf, size_t count) \ 2951{ \ 2952 struct Scsi_Host *shost = class_to_shost(dev);\ 2953 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2954 uint val = 0;\ 2955 if (!isdigit(buf[0]))\ 2956 return -EINVAL;\ 2957 if (sscanf(buf, "%i", &val) != 1)\ 2958 return -EINVAL;\ 2959 if (lpfc_##attr##_set(vport, val) == 0) \ 2960 return strlen(buf);\ 2961 else \ 2962 return -EINVAL;\ 2963} 2964 2965 2966static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2967static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2968static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2969static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2970static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2971static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2972static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2973static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2974static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2975static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2976static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2977static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2978static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2979static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2980static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2981 lpfc_link_state_store); 2982static DEVICE_ATTR(option_rom_version, S_IRUGO, 2983 lpfc_option_rom_version_show, NULL); 2984static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2985 lpfc_num_discovered_ports_show, NULL); 2986static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2987static DEVICE_ATTR_RO(lpfc_drvr_version); 2988static DEVICE_ATTR_RO(lpfc_enable_fip); 2989static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2990 lpfc_board_mode_show, lpfc_board_mode_store); 2991static DEVICE_ATTR_RO(lpfc_xcvr_data); 2992static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2993static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2994static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2995static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2996static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2997static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2998static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2999static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 3000static DEVICE_ATTR_RO(lpfc_temp_sensor); 3001static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 3002static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 3003static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 3004 NULL); 3005static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 3006 3007#define WWN_SZ 8 3008/** 3009 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 3010 * @buf: WWN string. 3011 * @cnt: Length of string. 3012 * @wwn: Array to receive converted wwn value. 3013 * 3014 * Returns: 3015 * -EINVAL if the buffer does not contain a valid wwn 3016 * 0 success 3017 **/ 3018static size_t 3019lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 3020{ 3021 unsigned int i, j; 3022 3023 /* Count may include a LF at end of string */ 3024 if (buf[cnt-1] == '\n') 3025 cnt--; 3026 3027 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 3028 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 3029 return -EINVAL; 3030 3031 memset(wwn, 0, WWN_SZ); 3032 3033 /* Validate and store the new name */ 3034 for (i = 0, j = 0; i < 16; i++) { 3035 if ((*buf >= 'a') && (*buf <= 'f')) 3036 j = ((j << 4) | ((*buf++ - 'a') + 10)); 3037 else if ((*buf >= 'A') && (*buf <= 'F')) 3038 j = ((j << 4) | ((*buf++ - 'A') + 10)); 3039 else if ((*buf >= '0') && (*buf <= '9')) 3040 j = ((j << 4) | (*buf++ - '0')); 3041 else 3042 return -EINVAL; 3043 if (i % 2) { 3044 wwn[i/2] = j & 0xff; 3045 j = 0; 3046 } 3047 } 3048 return 0; 3049} 3050 3051 3052/** 3053 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 3054 * Optimized Access Storage (OAS) operations. 3055 * @dev: class device that is converted into a Scsi_host. 3056 * @attr: device attribute, not used. 3057 * @buf: buffer for passing information. 3058 * 3059 * Returns: 3060 * value of count 3061 **/ 3062static ssize_t 3063lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 3064 char *buf) 3065{ 3066 struct Scsi_Host *shost = class_to_shost(dev); 3067 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3068 3069 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3070 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3071} 3072 3073/** 3074 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3075 * Optimized Access Storage (OAS) operations. 3076 * @dev: class device that is converted into a Scsi_host. 3077 * @attr: device attribute, not used. 3078 * @buf: buffer for passing information. 3079 * @count: Size of the data buffer. 3080 * 3081 * Returns: 3082 * -EINVAL count is invalid, invalid wwpn byte invalid 3083 * -EPERM oas is not supported by hba 3084 * value of count on success 3085 **/ 3086static ssize_t 3087lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3088 const char *buf, size_t count) 3089{ 3090 struct Scsi_Host *shost = class_to_shost(dev); 3091 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3092 unsigned int cnt = count; 3093 uint8_t wwpn[WWN_SZ]; 3094 int rc; 3095 3096 if (!phba->cfg_fof) 3097 return -EPERM; 3098 3099 /* count may include a LF at end of string */ 3100 if (buf[cnt-1] == '\n') 3101 cnt--; 3102 3103 rc = lpfc_wwn_set(buf, cnt, wwpn); 3104 if (rc) 3105 return rc; 3106 3107 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3108 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3109 if (wwn_to_u64(wwpn) == 0) 3110 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3111 else 3112 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3113 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3114 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3115 return count; 3116} 3117static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3118 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3119 3120/** 3121 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3122 * Optimized Access Storage (OAS) operations. 3123 * @dev: class device that is converted into a Scsi_host. 3124 * @attr: device attribute, not used. 3125 * @buf: buffer for passing information. 3126 * 3127 * Returns: 3128 * value of count 3129 **/ 3130static ssize_t 3131lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3132 char *buf) 3133{ 3134 struct Scsi_Host *shost = class_to_shost(dev); 3135 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3136 3137 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3138} 3139 3140/** 3141 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3142 * Optimized Access Storage (OAS) operations. 3143 * @dev: class device that is converted into a Scsi_host. 3144 * @attr: device attribute, not used. 3145 * @buf: buffer for passing information. 3146 * @count: Size of the data buffer. 3147 * 3148 * Returns: 3149 * -EINVAL count is invalid, invalid wwpn byte invalid 3150 * -EPERM oas is not supported by hba 3151 * value of count on success 3152 **/ 3153static ssize_t 3154lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3155 const char *buf, size_t count) 3156{ 3157 struct Scsi_Host *shost = class_to_shost(dev); 3158 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3159 unsigned int cnt = count; 3160 unsigned long val; 3161 int ret; 3162 3163 if (!phba->cfg_fof) 3164 return -EPERM; 3165 3166 /* count may include a LF at end of string */ 3167 if (buf[cnt-1] == '\n') 3168 cnt--; 3169 3170 ret = kstrtoul(buf, 0, &val); 3171 if (ret || (val > 0x7f)) 3172 return -EINVAL; 3173 3174 if (val) 3175 phba->cfg_oas_priority = (uint8_t)val; 3176 else 3177 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3178 return count; 3179} 3180static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3181 lpfc_oas_priority_show, lpfc_oas_priority_store); 3182 3183/** 3184 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3185 * for Optimized Access Storage (OAS) operations. 3186 * @dev: class device that is converted into a Scsi_host. 3187 * @attr: device attribute, not used. 3188 * @buf: buffer for passing information. 3189 * 3190 * Returns: 3191 * value of count on success 3192 **/ 3193static ssize_t 3194lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3195 char *buf) 3196{ 3197 struct Scsi_Host *shost = class_to_shost(dev); 3198 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3199 3200 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3201 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3202} 3203 3204/** 3205 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3206 * for Optimized Access Storage (OAS) operations. 3207 * @dev: class device that is converted into a Scsi_host. 3208 * @attr: device attribute, not used. 3209 * @buf: buffer for passing information. 3210 * @count: Size of the data buffer. 3211 * 3212 * Returns: 3213 * -EINVAL count is invalid, invalid wwpn byte invalid 3214 * -EPERM oas is not supported by hba 3215 * value of count on success 3216 **/ 3217static ssize_t 3218lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3219 const char *buf, size_t count) 3220{ 3221 struct Scsi_Host *shost = class_to_shost(dev); 3222 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3223 unsigned int cnt = count; 3224 uint8_t wwpn[WWN_SZ]; 3225 int rc; 3226 3227 if (!phba->cfg_fof) 3228 return -EPERM; 3229 3230 /* count may include a LF at end of string */ 3231 if (buf[cnt-1] == '\n') 3232 cnt--; 3233 3234 rc = lpfc_wwn_set(buf, cnt, wwpn); 3235 if (rc) 3236 return rc; 3237 3238 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3239 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3240 if (wwn_to_u64(wwpn) == 0) 3241 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3242 else 3243 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3244 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3245 if (phba->cfg_oas_priority == 0) 3246 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3247 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3248 return count; 3249} 3250static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3251 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3252 3253/** 3254 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3255 * of whether luns will be enabled or disabled 3256 * for Optimized Access Storage (OAS) operations. 3257 * @dev: class device that is converted into a Scsi_host. 3258 * @attr: device attribute, not used. 3259 * @buf: buffer for passing information. 3260 * 3261 * Returns: 3262 * size of formatted string. 3263 **/ 3264static ssize_t 3265lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3266 char *buf) 3267{ 3268 struct Scsi_Host *shost = class_to_shost(dev); 3269 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3270 3271 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3272} 3273 3274/** 3275 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3276 * of whether luns will be enabled or disabled 3277 * for Optimized Access Storage (OAS) operations. 3278 * @dev: class device that is converted into a Scsi_host. 3279 * @attr: device attribute, not used. 3280 * @buf: buffer for passing information. 3281 * @count: Size of the data buffer. 3282 * 3283 * Returns: 3284 * -EINVAL count is invalid, invalid wwpn byte invalid 3285 * -EPERM oas is not supported by hba 3286 * value of count on success 3287 **/ 3288static ssize_t 3289lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3290 const char *buf, size_t count) 3291{ 3292 struct Scsi_Host *shost = class_to_shost(dev); 3293 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3294 int val = 0; 3295 3296 if (!phba->cfg_fof) 3297 return -EPERM; 3298 3299 if (!isdigit(buf[0])) 3300 return -EINVAL; 3301 3302 if (sscanf(buf, "%i", &val) != 1) 3303 return -EINVAL; 3304 3305 if ((val != 0) && (val != 1)) 3306 return -EINVAL; 3307 3308 phba->cfg_oas_lun_state = val; 3309 return strlen(buf); 3310} 3311static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3312 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3313 3314/** 3315 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3316 * Storage (OAS) lun returned by the 3317 * lpfc_oas_lun_show function. 3318 * @dev: class device that is converted into a Scsi_host. 3319 * @attr: device attribute, not used. 3320 * @buf: buffer for passing information. 3321 * 3322 * Returns: 3323 * size of formatted string. 3324 **/ 3325static ssize_t 3326lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3327 char *buf) 3328{ 3329 struct Scsi_Host *shost = class_to_shost(dev); 3330 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3331 3332 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3333 return -EFAULT; 3334 3335 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3336} 3337static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3338 lpfc_oas_lun_status_show, NULL); 3339 3340 3341/** 3342 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3343 * (OAS) operations. 3344 * @phba: lpfc_hba pointer. 3345 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3346 * @tgt_wwpn: wwpn of the target associated with the returned lun 3347 * @lun: the fc lun for setting oas state. 3348 * @oas_state: the oas state to be set to the lun. 3349 * @pri: priority 3350 * 3351 * Returns: 3352 * SUCCESS : 0 3353 * -EPERM OAS is not enabled or not supported by this port. 3354 * 3355 */ 3356static size_t 3357lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3358 uint8_t tgt_wwpn[], uint64_t lun, 3359 uint32_t oas_state, uint8_t pri) 3360{ 3361 3362 int rc = 0; 3363 3364 if (!phba->cfg_fof) 3365 return -EPERM; 3366 3367 if (oas_state) { 3368 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3369 (struct lpfc_name *)tgt_wwpn, 3370 lun, pri)) 3371 rc = -ENOMEM; 3372 } else { 3373 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3374 (struct lpfc_name *)tgt_wwpn, lun, pri); 3375 } 3376 return rc; 3377 3378} 3379 3380/** 3381 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3382 * Access Storage (OAS) operations. 3383 * @phba: lpfc_hba pointer. 3384 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3385 * @tgt_wwpn: wwpn of the target associated with the returned lun 3386 * @lun_status: status of the lun returned lun 3387 * @lun_pri: priority of the lun returned lun 3388 * 3389 * Returns the first or next lun enabled for OAS operations for the vport/target 3390 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3391 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3392 * 3393 * Return: 3394 * lun that is OAS enabled for the vport/target 3395 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3396 */ 3397static uint64_t 3398lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3399 uint8_t tgt_wwpn[], uint32_t *lun_status, 3400 uint32_t *lun_pri) 3401{ 3402 uint64_t found_lun; 3403 3404 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3405 return NOT_OAS_ENABLED_LUN; 3406 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3407 phba->sli4_hba.oas_next_vpt_wwpn, 3408 (struct lpfc_name *) 3409 phba->sli4_hba.oas_next_tgt_wwpn, 3410 &phba->sli4_hba.oas_next_lun, 3411 (struct lpfc_name *)vpt_wwpn, 3412 (struct lpfc_name *)tgt_wwpn, 3413 &found_lun, lun_status, lun_pri)) 3414 return found_lun; 3415 else 3416 return NOT_OAS_ENABLED_LUN; 3417} 3418 3419/** 3420 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3421 * @phba: lpfc_hba pointer. 3422 * @vpt_wwpn: vport wwpn by reference. 3423 * @tgt_wwpn: target wwpn by reference. 3424 * @lun: the fc lun for setting oas state. 3425 * @oas_state: the oas state to be set to the oas_lun. 3426 * @pri: priority 3427 * 3428 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3429 * a lun for OAS operations. 3430 * 3431 * Return: 3432 * SUCCESS: 0 3433 * -ENOMEM: failed to enable an lun for OAS operations 3434 * -EPERM: OAS is not enabled 3435 */ 3436static ssize_t 3437lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3438 uint8_t tgt_wwpn[], uint64_t lun, 3439 uint32_t oas_state, uint8_t pri) 3440{ 3441 3442 int rc; 3443 3444 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3445 oas_state, pri); 3446 return rc; 3447} 3448 3449/** 3450 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3451 * @dev: class device that is converted into a Scsi_host. 3452 * @attr: device attribute, not used. 3453 * @buf: buffer for passing information. 3454 * 3455 * This routine returns a lun enabled for OAS each time the function 3456 * is called. 3457 * 3458 * Returns: 3459 * SUCCESS: size of formatted string. 3460 * -EFAULT: target or vport wwpn was not set properly. 3461 * -EPERM: oas is not enabled. 3462 **/ 3463static ssize_t 3464lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3465 char *buf) 3466{ 3467 struct Scsi_Host *shost = class_to_shost(dev); 3468 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3469 3470 uint64_t oas_lun; 3471 int len = 0; 3472 3473 if (!phba->cfg_fof) 3474 return -EPERM; 3475 3476 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3477 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3478 return -EFAULT; 3479 3480 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3481 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3482 return -EFAULT; 3483 3484 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3485 phba->cfg_oas_tgt_wwpn, 3486 &phba->cfg_oas_lun_status, 3487 &phba->cfg_oas_priority); 3488 if (oas_lun != NOT_OAS_ENABLED_LUN) 3489 phba->cfg_oas_flags |= OAS_LUN_VALID; 3490 3491 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3492 3493 return len; 3494} 3495 3496/** 3497 * lpfc_oas_lun_store - Sets the OAS state for lun 3498 * @dev: class device that is converted into a Scsi_host. 3499 * @attr: device attribute, not used. 3500 * @buf: buffer for passing information. 3501 * @count: size of the formatting string 3502 * 3503 * This function sets the OAS state for lun. Before this function is called, 3504 * the vport wwpn, target wwpn, and oas state need to be set. 3505 * 3506 * Returns: 3507 * SUCCESS: size of formatted string. 3508 * -EFAULT: target or vport wwpn was not set properly. 3509 * -EPERM: oas is not enabled. 3510 * size of formatted string. 3511 **/ 3512static ssize_t 3513lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3514 const char *buf, size_t count) 3515{ 3516 struct Scsi_Host *shost = class_to_shost(dev); 3517 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3518 uint64_t scsi_lun; 3519 uint32_t pri; 3520 ssize_t rc; 3521 3522 if (!phba->cfg_fof) 3523 return -EPERM; 3524 3525 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3526 return -EFAULT; 3527 3528 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3529 return -EFAULT; 3530 3531 if (!isdigit(buf[0])) 3532 return -EINVAL; 3533 3534 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3535 return -EINVAL; 3536 3537 pri = phba->cfg_oas_priority; 3538 if (pri == 0) 3539 pri = phba->cfg_XLanePriority; 3540 3541 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3542 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3543 "priority 0x%x with oas state %d\n", 3544 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3545 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3546 pri, phba->cfg_oas_lun_state); 3547 3548 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3549 phba->cfg_oas_tgt_wwpn, scsi_lun, 3550 phba->cfg_oas_lun_state, pri); 3551 if (rc) 3552 return rc; 3553 3554 return count; 3555} 3556static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3557 lpfc_oas_lun_show, lpfc_oas_lun_store); 3558 3559int lpfc_enable_nvmet_cnt; 3560unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3561 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3562 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3563module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3564MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3565 3566static int lpfc_poll = 0; 3567module_param(lpfc_poll, int, S_IRUGO); 3568MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3569 " 0 - none," 3570 " 1 - poll with interrupts enabled" 3571 " 3 - poll and disable FCP ring interrupts"); 3572 3573static DEVICE_ATTR_RW(lpfc_poll); 3574 3575int lpfc_no_hba_reset_cnt; 3576unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3577 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3578module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3579MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3580 3581LPFC_ATTR(sli_mode, 3, 3, 3, 3582 "SLI mode selector: 3 - select SLI-3"); 3583 3584LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3585 "Enable NPIV functionality"); 3586 3587LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3588 "FCF Fast failover=1 Priority failover=2"); 3589 3590/* 3591 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3592 * aborted IO. 3593 * The range is [0,1]. Default value is 0 3594 * 0, IO completes after ABTS issued (default). 3595 * 1, IO completes after receipt of ABTS response or timeout. 3596 */ 3597LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3598 3599/* 3600# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3601# 0x0 = disabled, XRI/OXID use not tracked. 3602# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3603# 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3604*/ 3605LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3606 "Enable RRQ functionality"); 3607 3608/* 3609# lpfc_suppress_link_up: Bring link up at initialization 3610# 0x0 = bring link up (issue MBX_INIT_LINK) 3611# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3612# 0x2 = never bring up link 3613# Default value is 0. 3614*/ 3615LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3616 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3617 "Suppress Link Up at initialization"); 3618 3619static ssize_t 3620lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3621{ 3622 struct Scsi_Host *shost = class_to_shost(dev); 3623 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3624 3625 return scnprintf(buf, PAGE_SIZE, "%d\n", 3626 phba->sli4_hba.pc_sli4_params.pls); 3627} 3628static DEVICE_ATTR(pls, 0444, 3629 lpfc_pls_show, NULL); 3630 3631static ssize_t 3632lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3633{ 3634 struct Scsi_Host *shost = class_to_shost(dev); 3635 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3636 3637 return scnprintf(buf, PAGE_SIZE, "%d\n", 3638 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3639} 3640static DEVICE_ATTR(pt, 0444, 3641 lpfc_pt_show, NULL); 3642 3643/* 3644# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3645# 1 - (1024) 3646# 2 - (2048) 3647# 3 - (3072) 3648# 4 - (4096) 3649# 5 - (5120) 3650*/ 3651static ssize_t 3652lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3653{ 3654 struct Scsi_Host *shost = class_to_shost(dev); 3655 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3656 3657 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3658} 3659 3660static DEVICE_ATTR(iocb_hw, S_IRUGO, 3661 lpfc_iocb_hw_show, NULL); 3662static ssize_t 3663lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3664{ 3665 struct Scsi_Host *shost = class_to_shost(dev); 3666 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3667 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3668 3669 return scnprintf(buf, PAGE_SIZE, "%d\n", 3670 pring ? pring->txq_max : 0); 3671} 3672 3673static DEVICE_ATTR(txq_hw, S_IRUGO, 3674 lpfc_txq_hw_show, NULL); 3675static ssize_t 3676lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3677 char *buf) 3678{ 3679 struct Scsi_Host *shost = class_to_shost(dev); 3680 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3681 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3682 3683 return scnprintf(buf, PAGE_SIZE, "%d\n", 3684 pring ? pring->txcmplq_max : 0); 3685} 3686 3687static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3688 lpfc_txcmplq_hw_show, NULL); 3689 3690/* 3691# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3692# until the timer expires. Value range is [0,255]. Default value is 30. 3693*/ 3694static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3695static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3696module_param(lpfc_nodev_tmo, int, 0); 3697MODULE_PARM_DESC(lpfc_nodev_tmo, 3698 "Seconds driver will hold I/O waiting " 3699 "for a device to come back"); 3700 3701/** 3702 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3703 * @dev: class converted to a Scsi_host structure. 3704 * @attr: device attribute, not used. 3705 * @buf: on return contains the dev loss timeout in decimal. 3706 * 3707 * Returns: size of formatted string. 3708 **/ 3709static ssize_t 3710lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3711 char *buf) 3712{ 3713 struct Scsi_Host *shost = class_to_shost(dev); 3714 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3715 3716 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3717} 3718 3719/** 3720 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3721 * @vport: lpfc vport structure pointer. 3722 * @val: contains the nodev timeout value. 3723 * 3724 * Description: 3725 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3726 * a kernel error message is printed and zero is returned. 3727 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3728 * Otherwise nodev tmo is set to the default value. 3729 * 3730 * Returns: 3731 * zero if already set or if val is in range 3732 * -EINVAL val out of range 3733 **/ 3734static int 3735lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3736{ 3737 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3738 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3739 if (val != LPFC_DEF_DEVLOSS_TMO) 3740 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3741 "0407 Ignoring lpfc_nodev_tmo module " 3742 "parameter because lpfc_devloss_tmo " 3743 "is set.\n"); 3744 return 0; 3745 } 3746 3747 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3748 vport->cfg_nodev_tmo = val; 3749 vport->cfg_devloss_tmo = val; 3750 return 0; 3751 } 3752 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3753 "0400 lpfc_nodev_tmo attribute cannot be set to" 3754 " %d, allowed range is [%d, %d]\n", 3755 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3756 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3757 return -EINVAL; 3758} 3759 3760/** 3761 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3762 * @vport: lpfc vport structure pointer. 3763 * 3764 * Description: 3765 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3766 **/ 3767static void 3768lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3769{ 3770 struct lpfc_nodelist *ndlp; 3771 unsigned long iflags; 3772#if (IS_ENABLED(CONFIG_NVME_FC)) 3773 struct lpfc_nvme_rport *rport; 3774 struct nvme_fc_remote_port *remoteport = NULL; 3775#endif 3776 3777 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 3778 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3779 if (ndlp->rport) 3780 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3781#if (IS_ENABLED(CONFIG_NVME_FC)) 3782 spin_lock(&ndlp->lock); 3783 rport = lpfc_ndlp_get_nrport(ndlp); 3784 if (rport) 3785 remoteport = rport->remoteport; 3786 spin_unlock(&ndlp->lock); 3787 if (rport && remoteport) 3788 nvme_fc_set_remoteport_devloss(remoteport, 3789 vport->cfg_devloss_tmo); 3790#endif 3791 } 3792 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 3793} 3794 3795/** 3796 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3797 * @vport: lpfc vport structure pointer. 3798 * @val: contains the tmo value. 3799 * 3800 * Description: 3801 * If the devloss tmo is already set or the vport dev loss tmo has changed 3802 * then a kernel error message is printed and zero is returned. 3803 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3804 * Otherwise nodev tmo is set to the default value. 3805 * 3806 * Returns: 3807 * zero if already set or if val is in range 3808 * -EINVAL val out of range 3809 **/ 3810static int 3811lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3812{ 3813 if (vport->dev_loss_tmo_changed || 3814 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3815 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3816 "0401 Ignoring change to lpfc_nodev_tmo " 3817 "because lpfc_devloss_tmo is set.\n"); 3818 return 0; 3819 } 3820 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3821 vport->cfg_nodev_tmo = val; 3822 vport->cfg_devloss_tmo = val; 3823 /* 3824 * For compat: set the fc_host dev loss so new rports 3825 * will get the value. 3826 */ 3827 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3828 lpfc_update_rport_devloss_tmo(vport); 3829 return 0; 3830 } 3831 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3832 "0403 lpfc_nodev_tmo attribute cannot be set to " 3833 "%d, allowed range is [%d, %d]\n", 3834 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3835 return -EINVAL; 3836} 3837 3838lpfc_vport_param_store(nodev_tmo) 3839 3840static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3841 3842/* 3843# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3844# disappear until the timer expires. Value range is [0,255]. Default 3845# value is 30. 3846*/ 3847module_param(lpfc_devloss_tmo, int, S_IRUGO); 3848MODULE_PARM_DESC(lpfc_devloss_tmo, 3849 "Seconds driver will hold I/O waiting " 3850 "for a device to come back"); 3851lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3852 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3853lpfc_vport_param_show(devloss_tmo) 3854 3855/** 3856 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3857 * @vport: lpfc vport structure pointer. 3858 * @val: contains the tmo value. 3859 * 3860 * Description: 3861 * If val is in a valid range then set the vport nodev tmo, 3862 * devloss tmo, also set the vport dev loss tmo changed flag. 3863 * Else a kernel error message is printed. 3864 * 3865 * Returns: 3866 * zero if val is in range 3867 * -EINVAL val out of range 3868 **/ 3869static int 3870lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3871{ 3872 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3873 vport->cfg_nodev_tmo = val; 3874 vport->cfg_devloss_tmo = val; 3875 vport->dev_loss_tmo_changed = 1; 3876 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3877 lpfc_update_rport_devloss_tmo(vport); 3878 return 0; 3879 } 3880 3881 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3882 "0404 lpfc_devloss_tmo attribute cannot be set to " 3883 "%d, allowed range is [%d, %d]\n", 3884 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3885 return -EINVAL; 3886} 3887 3888lpfc_vport_param_store(devloss_tmo) 3889static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3890 3891/* 3892 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3893 * lpfc_suppress_rsp = 0 Disable 3894 * lpfc_suppress_rsp = 1 Enable (default) 3895 * 3896 */ 3897LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3898 "Enable suppress rsp feature is firmware supports it"); 3899 3900/* 3901 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3902 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3903 * lpfc_nvmet_mrq = 1 use a single RQ pair 3904 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3905 * 3906 */ 3907LPFC_ATTR_R(nvmet_mrq, 3908 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3909 "Specify number of RQ pairs for processing NVMET cmds"); 3910 3911/* 3912 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3913 * to each NVMET RQ. Range 64 to 2048, default is 512. 3914 */ 3915LPFC_ATTR_R(nvmet_mrq_post, 3916 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3917 LPFC_NVMET_RQE_DEF_COUNT, 3918 "Specify number of RQ buffers to initially post"); 3919 3920/* 3921 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3922 * Supported Values: 1 - register just FCP 3923 * 3 - register both FCP and NVME 3924 * Supported values are [1,3]. Default value is 3 3925 */ 3926LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, 3927 LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, 3928 "Enable FC4 Protocol support - FCP / NVME"); 3929 3930/* 3931# lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3932# deluged with LOTS of information. 3933# You can set a bit mask to record specific types of verbose messages: 3934# See lpfc_logmsh.h for definitions. 3935*/ 3936LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3937 "Verbose logging bit-mask"); 3938 3939/* 3940# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3941# objects that have been registered with the nameserver after login. 3942*/ 3943LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3944 "Deregister nameserver objects before LOGO"); 3945 3946/* 3947# lun_queue_depth: This parameter is used to limit the number of outstanding 3948# commands per FCP LUN. 3949*/ 3950LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3951 "Max number of FCP commands we can queue to a specific LUN"); 3952 3953/* 3954# tgt_queue_depth: This parameter is used to limit the number of outstanding 3955# commands per target port. Value range is [10,65535]. Default value is 65535. 3956*/ 3957static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3958module_param(lpfc_tgt_queue_depth, uint, 0444); 3959MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3960lpfc_vport_param_show(tgt_queue_depth); 3961lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3962 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3963 3964/** 3965 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3966 * @vport: lpfc vport structure pointer. 3967 * @val: integer attribute value. 3968 * 3969 * Description: Sets the parameter to the new value. 3970 * 3971 * Returns: 3972 * zero on success 3973 * -EINVAL if val is invalid 3974 */ 3975static int 3976lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3977{ 3978 struct lpfc_nodelist *ndlp; 3979 unsigned long iflags; 3980 3981 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3982 return -EINVAL; 3983 3984 if (val == vport->cfg_tgt_queue_depth) 3985 return 0; 3986 3987 vport->cfg_tgt_queue_depth = val; 3988 3989 /* Next loop thru nodelist and change cmd_qdepth */ 3990 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 3991 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3992 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3993 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 3994 return 0; 3995} 3996 3997lpfc_vport_param_store(tgt_queue_depth); 3998static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3999 4000/* 4001# hba_queue_depth: This parameter is used to limit the number of outstanding 4002# commands per lpfc HBA. Value range is [32,8192]. If this parameter 4003# value is greater than the maximum number of exchanges supported by the HBA, 4004# then maximum number of exchanges supported by the HBA is used to determine 4005# the hba_queue_depth. 4006*/ 4007LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 4008 "Max number of FCP commands we can queue to a lpfc HBA"); 4009 4010/* 4011# peer_port_login: This parameter allows/prevents logins 4012# between peer ports hosted on the same physical port. 4013# When this parameter is set 0 peer ports of same physical port 4014# are not allowed to login to each other. 4015# When this parameter is set 1 peer ports of same physical port 4016# are allowed to login to each other. 4017# Default value of this parameter is 0. 4018*/ 4019LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 4020 "Allow peer ports on the same physical port to login to each " 4021 "other."); 4022 4023/* 4024# restrict_login: This parameter allows/prevents logins 4025# between Virtual Ports and remote initiators. 4026# When this parameter is not set (0) Virtual Ports will accept PLOGIs from 4027# other initiators and will attempt to PLOGI all remote ports. 4028# When this parameter is set (1) Virtual Ports will reject PLOGIs from 4029# remote ports and will not attempt to PLOGI to other initiators. 4030# This parameter does not restrict to the physical port. 4031# This parameter does not restrict logins to Fabric resident remote ports. 4032# Default value of this parameter is 1. 4033*/ 4034static int lpfc_restrict_login = 1; 4035module_param(lpfc_restrict_login, int, S_IRUGO); 4036MODULE_PARM_DESC(lpfc_restrict_login, 4037 "Restrict virtual ports login to remote initiators."); 4038lpfc_vport_param_show(restrict_login); 4039 4040/** 4041 * lpfc_restrict_login_init - Set the vport restrict login flag 4042 * @vport: lpfc vport structure pointer. 4043 * @val: contains the restrict login value. 4044 * 4045 * Description: 4046 * If val is not in a valid range then log a kernel error message and set 4047 * the vport restrict login to one. 4048 * If the port type is physical clear the restrict login flag and return. 4049 * Else set the restrict login flag to val. 4050 * 4051 * Returns: 4052 * zero if val is in range 4053 * -EINVAL val out of range 4054 **/ 4055static int 4056lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 4057{ 4058 if (val < 0 || val > 1) { 4059 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4060 "0422 lpfc_restrict_login attribute cannot " 4061 "be set to %d, allowed range is [0, 1]\n", 4062 val); 4063 vport->cfg_restrict_login = 1; 4064 return -EINVAL; 4065 } 4066 if (vport->port_type == LPFC_PHYSICAL_PORT) { 4067 vport->cfg_restrict_login = 0; 4068 return 0; 4069 } 4070 vport->cfg_restrict_login = val; 4071 return 0; 4072} 4073 4074/** 4075 * lpfc_restrict_login_set - Set the vport restrict login flag 4076 * @vport: lpfc vport structure pointer. 4077 * @val: contains the restrict login value. 4078 * 4079 * Description: 4080 * If val is not in a valid range then log a kernel error message and set 4081 * the vport restrict login to one. 4082 * If the port type is physical and the val is not zero log a kernel 4083 * error message, clear the restrict login flag and return zero. 4084 * Else set the restrict login flag to val. 4085 * 4086 * Returns: 4087 * zero if val is in range 4088 * -EINVAL val out of range 4089 **/ 4090static int 4091lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4092{ 4093 if (val < 0 || val > 1) { 4094 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4095 "0425 lpfc_restrict_login attribute cannot " 4096 "be set to %d, allowed range is [0, 1]\n", 4097 val); 4098 vport->cfg_restrict_login = 1; 4099 return -EINVAL; 4100 } 4101 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4102 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4103 "0468 lpfc_restrict_login must be 0 for " 4104 "Physical ports.\n"); 4105 vport->cfg_restrict_login = 0; 4106 return 0; 4107 } 4108 vport->cfg_restrict_login = val; 4109 return 0; 4110} 4111lpfc_vport_param_store(restrict_login); 4112static DEVICE_ATTR_RW(lpfc_restrict_login); 4113 4114/* 4115# Some disk devices have a "select ID" or "select Target" capability. 4116# From a protocol standpoint "select ID" usually means select the 4117# Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4118# annex" which contains a table that maps a "select ID" (a number 4119# between 0 and 7F) to an ALPA. By default, for compatibility with 4120# older drivers, the lpfc driver scans this table from low ALPA to high 4121# ALPA. 4122# 4123# Turning on the scan-down variable (on = 1, off = 0) will 4124# cause the lpfc driver to use an inverted table, effectively 4125# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4126# 4127# (Note: This "select ID" functionality is a LOOP ONLY characteristic 4128# and will not work across a fabric. Also this parameter will take 4129# effect only in the case when ALPA map is not available.) 4130*/ 4131LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4132 "Start scanning for devices from highest ALPA to lowest"); 4133 4134/* 4135# lpfc_topology: link topology for init link 4136# 0x0 = attempt loop mode then point-to-point 4137# 0x01 = internal loopback mode 4138# 0x02 = attempt point-to-point mode only 4139# 0x04 = attempt loop mode only 4140# 0x06 = attempt point-to-point mode then loop 4141# Set point-to-point mode if you want to run as an N_Port. 4142# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4143# Default value is 0. 4144*/ 4145LPFC_ATTR(topology, 0, 0, 6, 4146 "Select Fibre Channel topology"); 4147 4148/** 4149 * lpfc_topology_store - Set the adapters topology field 4150 * @dev: class device that is converted into a scsi_host. 4151 * @attr:device attribute, not used. 4152 * @buf: buffer for passing information. 4153 * @count: size of the data buffer. 4154 * 4155 * Description: 4156 * If val is in a valid range then set the adapter's topology field and 4157 * issue a lip; if the lip fails reset the topology to the old value. 4158 * 4159 * If the value is not in range log a kernel error message and return an error. 4160 * 4161 * Returns: 4162 * zero if val is in range and lip okay 4163 * non-zero return value from lpfc_issue_lip() 4164 * -EINVAL val out of range 4165 **/ 4166static ssize_t 4167lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4168 const char *buf, size_t count) 4169{ 4170 struct Scsi_Host *shost = class_to_shost(dev); 4171 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4172 struct lpfc_hba *phba = vport->phba; 4173 int val = 0; 4174 int nolip = 0; 4175 const char *val_buf = buf; 4176 int err; 4177 uint32_t prev_val; 4178 u8 sli_family, if_type; 4179 4180 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4181 nolip = 1; 4182 val_buf = &buf[strlen("nolip ")]; 4183 } 4184 4185 if (!isdigit(val_buf[0])) 4186 return -EINVAL; 4187 if (sscanf(val_buf, "%i", &val) != 1) 4188 return -EINVAL; 4189 4190 if (val >= 0 && val <= 6) { 4191 prev_val = phba->cfg_topology; 4192 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4193 val == 4) { 4194 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4195 "3113 Loop mode not supported at speed %d\n", 4196 val); 4197 return -EINVAL; 4198 } 4199 /* 4200 * The 'topology' is not a configurable parameter if : 4201 * - persistent topology enabled 4202 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4203 */ 4204 sli_family = bf_get(lpfc_sli_intf_sli_family, 4205 &phba->sli4_hba.sli_intf); 4206 if_type = bf_get(lpfc_sli_intf_if_type, 4207 &phba->sli4_hba.sli_intf); 4208 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4209 (!phba->sli4_hba.pc_sli4_params.pls && 4210 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4211 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4212 val == 4) { 4213 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4214 "3114 Loop mode not supported\n"); 4215 return -EINVAL; 4216 } 4217 phba->cfg_topology = val; 4218 if (nolip) 4219 return strlen(buf); 4220 4221 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4222 "3054 lpfc_topology changed from %d to %d\n", 4223 prev_val, val); 4224 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4225 phba->fc_topology_changed = 1; 4226 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4227 if (err) { 4228 phba->cfg_topology = prev_val; 4229 return -EINVAL; 4230 } else 4231 return strlen(buf); 4232 } 4233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4234 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4235 "allowed range is [0, 6]\n", 4236 phba->brd_no, val); 4237 return -EINVAL; 4238} 4239 4240lpfc_param_show(topology) 4241static DEVICE_ATTR_RW(lpfc_topology); 4242 4243/** 4244 * lpfc_static_vport_show: Read callback function for 4245 * lpfc_static_vport sysfs file. 4246 * @dev: Pointer to class device object. 4247 * @attr: device attribute structure. 4248 * @buf: Data buffer. 4249 * 4250 * This function is the read call back function for 4251 * lpfc_static_vport sysfs file. The lpfc_static_vport 4252 * sysfs file report the mageability of the vport. 4253 **/ 4254static ssize_t 4255lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4256 char *buf) 4257{ 4258 struct Scsi_Host *shost = class_to_shost(dev); 4259 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4260 if (vport->vport_flag & STATIC_VPORT) 4261 sprintf(buf, "1\n"); 4262 else 4263 sprintf(buf, "0\n"); 4264 4265 return strlen(buf); 4266} 4267 4268/* 4269 * Sysfs attribute to control the statistical data collection. 4270 */ 4271static DEVICE_ATTR_RO(lpfc_static_vport); 4272 4273/* 4274# lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4275# connection. 4276# Value range is [0,16]. Default value is 0. 4277*/ 4278/** 4279 * lpfc_link_speed_store - Set the adapters link speed 4280 * @dev: Pointer to class device. 4281 * @attr: Unused. 4282 * @buf: Data buffer. 4283 * @count: Size of the data buffer. 4284 * 4285 * Description: 4286 * If val is in a valid range then set the adapter's link speed field and 4287 * issue a lip; if the lip fails reset the link speed to the old value. 4288 * 4289 * Notes: 4290 * If the value is not in range log a kernel error message and return an error. 4291 * 4292 * Returns: 4293 * zero if val is in range and lip okay. 4294 * non-zero return value from lpfc_issue_lip() 4295 * -EINVAL val out of range 4296 **/ 4297static ssize_t 4298lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4299 const char *buf, size_t count) 4300{ 4301 struct Scsi_Host *shost = class_to_shost(dev); 4302 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4303 struct lpfc_hba *phba = vport->phba; 4304 int val = LPFC_USER_LINK_SPEED_AUTO; 4305 int nolip = 0; 4306 const char *val_buf = buf; 4307 int err; 4308 uint32_t prev_val, if_type; 4309 4310 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4311 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4312 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4313 return -EPERM; 4314 4315 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4316 nolip = 1; 4317 val_buf = &buf[strlen("nolip ")]; 4318 } 4319 4320 if (!isdigit(val_buf[0])) 4321 return -EINVAL; 4322 if (sscanf(val_buf, "%i", &val) != 1) 4323 return -EINVAL; 4324 4325 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4326 "3055 lpfc_link_speed changed from %d to %d %s\n", 4327 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4328 4329 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4330 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4331 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4332 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4333 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4334 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4335 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4336 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4338 "2879 lpfc_link_speed attribute cannot be set " 4339 "to %d. Speed is not supported by this port.\n", 4340 val); 4341 return -EINVAL; 4342 } 4343 if (val >= LPFC_USER_LINK_SPEED_16G && 4344 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4346 "3112 lpfc_link_speed attribute cannot be set " 4347 "to %d. Speed is not supported in loop mode.\n", 4348 val); 4349 return -EINVAL; 4350 } 4351 4352 switch (val) { 4353 case LPFC_USER_LINK_SPEED_AUTO: 4354 case LPFC_USER_LINK_SPEED_1G: 4355 case LPFC_USER_LINK_SPEED_2G: 4356 case LPFC_USER_LINK_SPEED_4G: 4357 case LPFC_USER_LINK_SPEED_8G: 4358 case LPFC_USER_LINK_SPEED_16G: 4359 case LPFC_USER_LINK_SPEED_32G: 4360 case LPFC_USER_LINK_SPEED_64G: 4361 prev_val = phba->cfg_link_speed; 4362 phba->cfg_link_speed = val; 4363 if (nolip) 4364 return strlen(buf); 4365 4366 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4367 if (err) { 4368 phba->cfg_link_speed = prev_val; 4369 return -EINVAL; 4370 } 4371 return strlen(buf); 4372 default: 4373 break; 4374 } 4375 4376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4377 "0469 lpfc_link_speed attribute cannot be set to %d, " 4378 "allowed values are [%s]\n", 4379 val, LPFC_LINK_SPEED_STRING); 4380 return -EINVAL; 4381 4382} 4383 4384static int lpfc_link_speed = 0; 4385module_param(lpfc_link_speed, int, S_IRUGO); 4386MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4387lpfc_param_show(link_speed) 4388 4389/** 4390 * lpfc_link_speed_init - Set the adapters link speed 4391 * @phba: lpfc_hba pointer. 4392 * @val: link speed value. 4393 * 4394 * Description: 4395 * If val is in a valid range then set the adapter's link speed field. 4396 * 4397 * Notes: 4398 * If the value is not in range log a kernel error message, clear the link 4399 * speed and return an error. 4400 * 4401 * Returns: 4402 * zero if val saved. 4403 * -EINVAL val out of range 4404 **/ 4405static int 4406lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4407{ 4408 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4410 "3111 lpfc_link_speed of %d cannot " 4411 "support loop mode, setting topology to default.\n", 4412 val); 4413 phba->cfg_topology = 0; 4414 } 4415 4416 switch (val) { 4417 case LPFC_USER_LINK_SPEED_AUTO: 4418 case LPFC_USER_LINK_SPEED_1G: 4419 case LPFC_USER_LINK_SPEED_2G: 4420 case LPFC_USER_LINK_SPEED_4G: 4421 case LPFC_USER_LINK_SPEED_8G: 4422 case LPFC_USER_LINK_SPEED_16G: 4423 case LPFC_USER_LINK_SPEED_32G: 4424 case LPFC_USER_LINK_SPEED_64G: 4425 phba->cfg_link_speed = val; 4426 return 0; 4427 default: 4428 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4429 "0405 lpfc_link_speed attribute cannot " 4430 "be set to %d, allowed values are " 4431 "["LPFC_LINK_SPEED_STRING"]\n", val); 4432 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4433 return -EINVAL; 4434 } 4435} 4436 4437static DEVICE_ATTR_RW(lpfc_link_speed); 4438 4439/* 4440# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4441# 1 = aer supported and enabled (default) 4442# PCIe error reporting is always enabled by the PCI core, so this always 4443# shows 1. 4444# 4445# N.B. Parts of LPFC_ATTR open-coded since some of the underlying 4446# infrastructure (phba->cfg_aer_support) is gone. 4447*/ 4448static uint lpfc_aer_support = 1; 4449module_param(lpfc_aer_support, uint, S_IRUGO); 4450MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); 4451static ssize_t 4452lpfc_aer_support_show(struct device *dev, struct device_attribute *attr, 4453 char *buf) 4454{ 4455 return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_aer_support); 4456} 4457 4458/** 4459 * lpfc_aer_support_store - Set the adapter for aer support 4460 * 4461 * @dev: class device that is converted into a Scsi_host. 4462 * @attr: device attribute, not used. 4463 * @buf: containing enable or disable aer flag. 4464 * @count: unused variable. 4465 * 4466 * Description: 4467 * PCIe error reporting is enabled by the PCI core, so drivers don't need 4468 * to do anything. Retain this interface for backwards compatibility, 4469 * but do nothing. 4470 * 4471 * Returns: 4472 * length of the buf on success 4473 * -EINVAL if val out of range 4474 **/ 4475static ssize_t 4476lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4477 const char *buf, size_t count) 4478{ 4479 int val = 0; 4480 4481 if (!isdigit(buf[0])) 4482 return -EINVAL; 4483 if (sscanf(buf, "%i", &val) != 1) 4484 return -EINVAL; 4485 4486 dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n"); 4487 return strlen(buf); 4488} 4489 4490static DEVICE_ATTR_RW(lpfc_aer_support); 4491 4492/** 4493 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4494 * @dev: class device that is converted into a Scsi_host. 4495 * @attr: device attribute, not used. 4496 * @buf: containing flag 1 for aer cleanup state. 4497 * @count: unused variable. 4498 * 4499 * Description: 4500 * If the @buf contains 1, invokes the kernel AER helper routine 4501 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4502 * error status register. 4503 * 4504 * Notes: 4505 * 4506 * Returns: 4507 * -EINVAL if the buf does not contain 1 4508 * -EPERM if the OS cannot clear AER error status, i.e., when platform 4509 * firmware owns the AER Capability 4510 **/ 4511static ssize_t 4512lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4513 const char *buf, size_t count) 4514{ 4515 struct Scsi_Host *shost = class_to_shost(dev); 4516 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4517 struct lpfc_hba *phba = vport->phba; 4518 int val, rc = -1; 4519 4520 if (!isdigit(buf[0])) 4521 return -EINVAL; 4522 if (sscanf(buf, "%i", &val) != 1) 4523 return -EINVAL; 4524 if (val != 1) 4525 return -EINVAL; 4526 4527 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4528 4529 if (rc == 0) 4530 return strlen(buf); 4531 else 4532 return -EPERM; 4533} 4534 4535static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4536 lpfc_aer_cleanup_state); 4537 4538/** 4539 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4540 * 4541 * @dev: class device that is converted into a Scsi_host. 4542 * @attr: device attribute, not used. 4543 * @buf: containing the string the number of vfs to be enabled. 4544 * @count: unused variable. 4545 * 4546 * Description: 4547 * When this api is called either through user sysfs, the driver shall 4548 * try to enable or disable SR-IOV virtual functions according to the 4549 * following: 4550 * 4551 * If zero virtual function has been enabled to the physical function, 4552 * the driver shall invoke the pci enable virtual function api trying 4553 * to enable the virtual functions. If the nr_vfn provided is greater 4554 * than the maximum supported, the maximum virtual function number will 4555 * be used for invoking the api; otherwise, the nr_vfn provided shall 4556 * be used for invoking the api. If the api call returned success, the 4557 * actual number of virtual functions enabled will be set to the driver 4558 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4559 * cfg_sriov_nr_virtfn remains zero. 4560 * 4561 * If none-zero virtual functions have already been enabled to the 4562 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4563 * -EINVAL will be returned and the driver does nothing; 4564 * 4565 * If the nr_vfn provided is zero and none-zero virtual functions have 4566 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4567 * disabling virtual function api shall be invoded to disable all the 4568 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4569 * zero. Otherwise, if zero virtual function has been enabled, do 4570 * nothing. 4571 * 4572 * Returns: 4573 * length of the buf on success if val is in range the intended mode 4574 * is supported. 4575 * -EINVAL if val out of range or intended mode is not supported. 4576 **/ 4577static ssize_t 4578lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4579 const char *buf, size_t count) 4580{ 4581 struct Scsi_Host *shost = class_to_shost(dev); 4582 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4583 struct lpfc_hba *phba = vport->phba; 4584 struct pci_dev *pdev = phba->pcidev; 4585 int val = 0, rc = -EINVAL; 4586 4587 /* Sanity check on user data */ 4588 if (!isdigit(buf[0])) 4589 return -EINVAL; 4590 if (sscanf(buf, "%i", &val) != 1) 4591 return -EINVAL; 4592 if (val < 0) 4593 return -EINVAL; 4594 4595 /* Request disabling virtual functions */ 4596 if (val == 0) { 4597 if (phba->cfg_sriov_nr_virtfn > 0) { 4598 pci_disable_sriov(pdev); 4599 phba->cfg_sriov_nr_virtfn = 0; 4600 } 4601 return strlen(buf); 4602 } 4603 4604 /* Request enabling virtual functions */ 4605 if (phba->cfg_sriov_nr_virtfn > 0) { 4606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4607 "3018 There are %d virtual functions " 4608 "enabled on physical function.\n", 4609 phba->cfg_sriov_nr_virtfn); 4610 return -EEXIST; 4611 } 4612 4613 if (val <= LPFC_MAX_VFN_PER_PFN) 4614 phba->cfg_sriov_nr_virtfn = val; 4615 else { 4616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4617 "3019 Enabling %d virtual functions is not " 4618 "allowed.\n", val); 4619 return -EINVAL; 4620 } 4621 4622 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4623 if (rc) { 4624 phba->cfg_sriov_nr_virtfn = 0; 4625 rc = -EPERM; 4626 } else 4627 rc = strlen(buf); 4628 4629 return rc; 4630} 4631 4632LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4633 "Enable PCIe device SR-IOV virtual fn"); 4634 4635lpfc_param_show(sriov_nr_virtfn) 4636static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4637 4638/** 4639 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4640 * 4641 * @dev: class device that is converted into a Scsi_host. 4642 * @attr: device attribute, not used. 4643 * @buf: containing the string the number of vfs to be enabled. 4644 * @count: unused variable. 4645 * 4646 * Description: 4647 * 4648 * Returns: 4649 * length of the buf on success if val is in range the intended mode 4650 * is supported. 4651 * -EINVAL if val out of range or intended mode is not supported. 4652 **/ 4653static ssize_t 4654lpfc_request_firmware_upgrade_store(struct device *dev, 4655 struct device_attribute *attr, 4656 const char *buf, size_t count) 4657{ 4658 struct Scsi_Host *shost = class_to_shost(dev); 4659 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4660 struct lpfc_hba *phba = vport->phba; 4661 int val = 0, rc; 4662 4663 /* Sanity check on user data */ 4664 if (!isdigit(buf[0])) 4665 return -EINVAL; 4666 if (sscanf(buf, "%i", &val) != 1) 4667 return -EINVAL; 4668 if (val != 1) 4669 return -EINVAL; 4670 4671 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4672 if (rc) 4673 rc = -EPERM; 4674 else 4675 rc = strlen(buf); 4676 return rc; 4677} 4678 4679static int lpfc_req_fw_upgrade; 4680module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4681MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4682lpfc_param_show(request_firmware_upgrade) 4683 4684/** 4685 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4686 * @phba: lpfc_hba pointer. 4687 * @val: 0 or 1. 4688 * 4689 * Description: 4690 * Set the initial Linux generic firmware upgrade enable or disable flag. 4691 * 4692 * Returns: 4693 * zero if val saved. 4694 * -EINVAL val out of range 4695 **/ 4696static int 4697lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4698{ 4699 if (val >= 0 && val <= 1) { 4700 phba->cfg_request_firmware_upgrade = val; 4701 return 0; 4702 } 4703 return -EINVAL; 4704} 4705static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4706 lpfc_request_firmware_upgrade_show, 4707 lpfc_request_firmware_upgrade_store); 4708 4709/** 4710 * lpfc_force_rscn_store 4711 * 4712 * @dev: class device that is converted into a Scsi_host. 4713 * @attr: device attribute, not used. 4714 * @buf: unused string 4715 * @count: unused variable. 4716 * 4717 * Description: 4718 * Force the switch to send a RSCN to all other NPorts in our zone 4719 * If we are direct connect pt2pt, build the RSCN command ourself 4720 * and send to the other NPort. Not supported for private loop. 4721 * 4722 * Returns: 4723 * 0 - on success 4724 * -EIO - if command is not sent 4725 **/ 4726static ssize_t 4727lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4728 const char *buf, size_t count) 4729{ 4730 struct Scsi_Host *shost = class_to_shost(dev); 4731 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4732 int i; 4733 4734 i = lpfc_issue_els_rscn(vport, 0); 4735 if (i) 4736 return -EIO; 4737 return strlen(buf); 4738} 4739 4740/* 4741 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4742 * connected to the HBA. 4743 * 4744 * Value range is any ascii value 4745 */ 4746static int lpfc_force_rscn; 4747module_param(lpfc_force_rscn, int, 0644); 4748MODULE_PARM_DESC(lpfc_force_rscn, 4749 "Force an RSCN to be sent to all remote NPorts"); 4750lpfc_param_show(force_rscn) 4751 4752/** 4753 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4754 * @phba: lpfc_hba pointer. 4755 * @val: unused value. 4756 * 4757 * Returns: 4758 * zero if val saved. 4759 **/ 4760static int 4761lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4762{ 4763 return 0; 4764} 4765static DEVICE_ATTR_RW(lpfc_force_rscn); 4766 4767/** 4768 * lpfc_fcp_imax_store 4769 * 4770 * @dev: class device that is converted into a Scsi_host. 4771 * @attr: device attribute, not used. 4772 * @buf: string with the number of fast-path FCP interrupts per second. 4773 * @count: unused variable. 4774 * 4775 * Description: 4776 * If val is in a valid range [636,651042], then set the adapter's 4777 * maximum number of fast-path FCP interrupts per second. 4778 * 4779 * Returns: 4780 * length of the buf on success if val is in range the intended mode 4781 * is supported. 4782 * -EINVAL if val out of range or intended mode is not supported. 4783 **/ 4784static ssize_t 4785lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4786 const char *buf, size_t count) 4787{ 4788 struct Scsi_Host *shost = class_to_shost(dev); 4789 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4790 struct lpfc_hba *phba = vport->phba; 4791 struct lpfc_eq_intr_info *eqi; 4792 uint32_t usdelay; 4793 int val = 0, i; 4794 4795 /* fcp_imax is only valid for SLI4 */ 4796 if (phba->sli_rev != LPFC_SLI_REV4) 4797 return -EINVAL; 4798 4799 /* Sanity check on user data */ 4800 if (!isdigit(buf[0])) 4801 return -EINVAL; 4802 if (sscanf(buf, "%i", &val) != 1) 4803 return -EINVAL; 4804 4805 /* 4806 * Value range for the HBA is [5000,5000000] 4807 * The value for each EQ depends on how many EQs are configured. 4808 * Allow value == 0 4809 */ 4810 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4811 return -EINVAL; 4812 4813 phba->cfg_auto_imax = (val) ? 0 : 1; 4814 if (phba->cfg_fcp_imax && !val) { 4815 queue_delayed_work(phba->wq, &phba->eq_delay_work, 4816 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 4817 4818 for_each_present_cpu(i) { 4819 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 4820 eqi->icnt = 0; 4821 } 4822 } 4823 4824 phba->cfg_fcp_imax = (uint32_t)val; 4825 4826 if (phba->cfg_fcp_imax) 4827 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 4828 else 4829 usdelay = 0; 4830 4831 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4832 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4833 usdelay); 4834 4835 return strlen(buf); 4836} 4837 4838/* 4839# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4840# for the HBA. 4841# 4842# Value range is [5,000 to 5,000,000]. Default value is 50,000. 4843*/ 4844static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4845module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4846MODULE_PARM_DESC(lpfc_fcp_imax, 4847 "Set the maximum number of FCP interrupts per second per HBA"); 4848lpfc_param_show(fcp_imax) 4849 4850/** 4851 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4852 * @phba: lpfc_hba pointer. 4853 * @val: link speed value. 4854 * 4855 * Description: 4856 * If val is in a valid range [636,651042], then initialize the adapter's 4857 * maximum number of fast-path FCP interrupts per second. 4858 * 4859 * Returns: 4860 * zero if val saved. 4861 * -EINVAL val out of range 4862 **/ 4863static int 4864lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4865{ 4866 if (phba->sli_rev != LPFC_SLI_REV4) { 4867 phba->cfg_fcp_imax = 0; 4868 return 0; 4869 } 4870 4871 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4872 (val == 0)) { 4873 phba->cfg_fcp_imax = val; 4874 return 0; 4875 } 4876 4877 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4878 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4879 val); 4880 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4881 4882 return 0; 4883} 4884 4885static DEVICE_ATTR_RW(lpfc_fcp_imax); 4886 4887/** 4888 * lpfc_cq_max_proc_limit_store 4889 * 4890 * @dev: class device that is converted into a Scsi_host. 4891 * @attr: device attribute, not used. 4892 * @buf: string with the cq max processing limit of cqes 4893 * @count: unused variable. 4894 * 4895 * Description: 4896 * If val is in a valid range, then set value on each cq 4897 * 4898 * Returns: 4899 * The length of the buf: if successful 4900 * -ERANGE: if val is not in the valid range 4901 * -EINVAL: if bad value format or intended mode is not supported. 4902 **/ 4903static ssize_t 4904lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 4905 const char *buf, size_t count) 4906{ 4907 struct Scsi_Host *shost = class_to_shost(dev); 4908 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4909 struct lpfc_hba *phba = vport->phba; 4910 struct lpfc_queue *eq, *cq; 4911 unsigned long val; 4912 int i; 4913 4914 /* cq_max_proc_limit is only valid for SLI4 */ 4915 if (phba->sli_rev != LPFC_SLI_REV4) 4916 return -EINVAL; 4917 4918 /* Sanity check on user data */ 4919 if (!isdigit(buf[0])) 4920 return -EINVAL; 4921 if (kstrtoul(buf, 0, &val)) 4922 return -EINVAL; 4923 4924 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 4925 return -ERANGE; 4926 4927 phba->cfg_cq_max_proc_limit = (uint32_t)val; 4928 4929 /* set the values on the cq's */ 4930 for (i = 0; i < phba->cfg_irq_chann; i++) { 4931 /* Get the EQ corresponding to the IRQ vector */ 4932 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 4933 if (!eq) 4934 continue; 4935 4936 list_for_each_entry(cq, &eq->child_list, list) 4937 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 4938 cq->entry_count); 4939 } 4940 4941 return strlen(buf); 4942} 4943 4944/* 4945 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 4946 * itteration of CQ processing. 4947 */ 4948static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4949module_param(lpfc_cq_max_proc_limit, int, 0644); 4950MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 4951 "Set the maximum number CQEs processed in an iteration of " 4952 "CQ processing"); 4953lpfc_param_show(cq_max_proc_limit) 4954 4955/* 4956 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 4957 * single handler call which should request a polled completion rather 4958 * than re-enabling interrupts. 4959 */ 4960LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 4961 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 4962 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 4963 "CQE Processing Threshold to enable Polling"); 4964 4965/** 4966 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 4967 * @phba: lpfc_hba pointer. 4968 * @val: entry limit 4969 * 4970 * Description: 4971 * If val is in a valid range, then initialize the adapter's maximum 4972 * value. 4973 * 4974 * Returns: 4975 * Always returns 0 for success, even if value not always set to 4976 * requested value. If value out of range or not supported, will fall 4977 * back to default. 4978 **/ 4979static int 4980lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 4981{ 4982 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4983 4984 if (phba->sli_rev != LPFC_SLI_REV4) 4985 return 0; 4986 4987 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 4988 phba->cfg_cq_max_proc_limit = val; 4989 return 0; 4990 } 4991 4992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4993 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 4994 "default\n", 4995 phba->cfg_cq_max_proc_limit); 4996 4997 return 0; 4998} 4999 5000static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5001 5002/** 5003 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5004 * @dev: class converted to a Scsi_host structure. 5005 * @attr: device attribute, not used. 5006 * @buf: on return contains text describing the state of the link. 5007 * 5008 * Returns: size of formatted string. 5009 **/ 5010static ssize_t 5011lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5012 char *buf) 5013{ 5014 struct Scsi_Host *shost = class_to_shost(dev); 5015 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5016 struct lpfc_hba *phba = vport->phba; 5017 struct lpfc_vector_map_info *cpup; 5018 int len = 0; 5019 5020 if ((phba->sli_rev != LPFC_SLI_REV4) || 5021 (phba->intr_type != MSIX)) 5022 return len; 5023 5024 switch (phba->cfg_fcp_cpu_map) { 5025 case 0: 5026 len += scnprintf(buf + len, PAGE_SIZE-len, 5027 "fcp_cpu_map: No mapping (%d)\n", 5028 phba->cfg_fcp_cpu_map); 5029 return len; 5030 case 1: 5031 len += scnprintf(buf + len, PAGE_SIZE-len, 5032 "fcp_cpu_map: HBA centric mapping (%d): " 5033 "%d of %d CPUs online from %d possible CPUs\n", 5034 phba->cfg_fcp_cpu_map, num_online_cpus(), 5035 num_present_cpus(), 5036 phba->sli4_hba.num_possible_cpu); 5037 break; 5038 } 5039 5040 while (phba->sli4_hba.curr_disp_cpu < 5041 phba->sli4_hba.num_possible_cpu) { 5042 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5043 5044 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5045 len += scnprintf(buf + len, PAGE_SIZE - len, 5046 "CPU %02d not present\n", 5047 phba->sli4_hba.curr_disp_cpu); 5048 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5049 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5050 len += scnprintf( 5051 buf + len, PAGE_SIZE - len, 5052 "CPU %02d hdwq None " 5053 "physid %d coreid %d ht %d ua %d\n", 5054 phba->sli4_hba.curr_disp_cpu, 5055 cpup->phys_id, cpup->core_id, 5056 (cpup->flag & LPFC_CPU_MAP_HYPER), 5057 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5058 else 5059 len += scnprintf( 5060 buf + len, PAGE_SIZE - len, 5061 "CPU %02d EQ None hdwq %04d " 5062 "physid %d coreid %d ht %d ua %d\n", 5063 phba->sli4_hba.curr_disp_cpu, 5064 cpup->hdwq, cpup->phys_id, 5065 cpup->core_id, 5066 (cpup->flag & LPFC_CPU_MAP_HYPER), 5067 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5068 } else { 5069 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5070 len += scnprintf( 5071 buf + len, PAGE_SIZE - len, 5072 "CPU %02d hdwq None " 5073 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5074 phba->sli4_hba.curr_disp_cpu, 5075 cpup->phys_id, 5076 cpup->core_id, 5077 (cpup->flag & LPFC_CPU_MAP_HYPER), 5078 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5079 lpfc_get_irq(cpup->eq)); 5080 else 5081 len += scnprintf( 5082 buf + len, PAGE_SIZE - len, 5083 "CPU %02d EQ %04d hdwq %04d " 5084 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5085 phba->sli4_hba.curr_disp_cpu, 5086 cpup->eq, cpup->hdwq, cpup->phys_id, 5087 cpup->core_id, 5088 (cpup->flag & LPFC_CPU_MAP_HYPER), 5089 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5090 lpfc_get_irq(cpup->eq)); 5091 } 5092 5093 phba->sli4_hba.curr_disp_cpu++; 5094 5095 /* display max number of CPUs keeping some margin */ 5096 if (phba->sli4_hba.curr_disp_cpu < 5097 phba->sli4_hba.num_possible_cpu && 5098 (len >= (PAGE_SIZE - 64))) { 5099 len += scnprintf(buf + len, 5100 PAGE_SIZE - len, "more...\n"); 5101 break; 5102 } 5103 } 5104 5105 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5106 phba->sli4_hba.curr_disp_cpu = 0; 5107 5108 return len; 5109} 5110 5111/** 5112 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5113 * @dev: class device that is converted into a Scsi_host. 5114 * @attr: device attribute, not used. 5115 * @buf: one or more lpfc_polling_flags values. 5116 * @count: not used. 5117 * 5118 * Returns: 5119 * -EINVAL - Not implemented yet. 5120 **/ 5121static ssize_t 5122lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5123 const char *buf, size_t count) 5124{ 5125 return -EINVAL; 5126} 5127 5128/* 5129# lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5130# for the HBA. 5131# 5132# Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5133# 0 - Do not affinitze IRQ vectors 5134# 1 - Affintize HBA vectors with respect to each HBA 5135# (start with CPU0 for each HBA) 5136# This also defines how Hardware Queues are mapped to specific CPUs. 5137*/ 5138static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5139module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5140MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5141 "Defines how to map CPUs to IRQ vectors per HBA"); 5142 5143/** 5144 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5145 * @phba: lpfc_hba pointer. 5146 * @val: link speed value. 5147 * 5148 * Description: 5149 * If val is in a valid range [0-2], then affinitze the adapter's 5150 * MSIX vectors. 5151 * 5152 * Returns: 5153 * zero if val saved. 5154 * -EINVAL val out of range 5155 **/ 5156static int 5157lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5158{ 5159 if (phba->sli_rev != LPFC_SLI_REV4) { 5160 phba->cfg_fcp_cpu_map = 0; 5161 return 0; 5162 } 5163 5164 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5165 phba->cfg_fcp_cpu_map = val; 5166 return 0; 5167 } 5168 5169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5170 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5171 "default\n", val); 5172 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5173 5174 return 0; 5175} 5176 5177static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5178 5179/* 5180# lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5181# Value range is [2,3]. Default value is 3. 5182*/ 5183LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5184 "Select Fibre Channel class of service for FCP sequences"); 5185 5186/* 5187# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5188# is [0,1]. Default value is 1. 5189*/ 5190LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5191 "Use ADISC on rediscovery to authenticate FCP devices"); 5192 5193/* 5194# lpfc_first_burst_size: First burst size to use on the NPorts 5195# that support first burst. 5196# Value range is [0,65536]. Default value is 0. 5197*/ 5198LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5199 "First burst size for Targets that support first burst"); 5200 5201/* 5202* lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5203* When the driver is configured as an NVME target, this value is 5204* communicated to the NVME initiator in the PRLI response. It is 5205* used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5206* parameters are set and the target is sending the PRLI RSP. 5207* Parameter supported on physical port only - no NPIV support. 5208* Value range is [0,65536]. Default value is 0. 5209*/ 5210LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5211 "NVME Target mode first burst size in 512B increments."); 5212 5213/* 5214 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5215 * For the Initiator (I), enabling this parameter means that an NVMET 5216 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5217 * processed by the initiator for subsequent NVME FCP IO. 5218 * Currently, this feature is not supported on the NVME target 5219 * Value range is [0,1]. Default value is 0 (disabled). 5220 */ 5221LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5222 "Enable First Burst feature for NVME Initiator."); 5223 5224/* 5225# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5226# depth. Default value is 0. When the value of this parameter is zero the 5227# SCSI command completion time is not used for controlling I/O queue depth. When 5228# the parameter is set to a non-zero value, the I/O queue depth is controlled 5229# to limit the I/O completion time to the parameter value. 5230# The value is set in milliseconds. 5231*/ 5232LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5233 "Use command completion time to control queue depth"); 5234 5235lpfc_vport_param_show(max_scsicmpl_time); 5236static int 5237lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5238{ 5239 struct lpfc_nodelist *ndlp, *next_ndlp; 5240 unsigned long iflags; 5241 5242 if (val == vport->cfg_max_scsicmpl_time) 5243 return 0; 5244 if ((val < 0) || (val > 60000)) 5245 return -EINVAL; 5246 vport->cfg_max_scsicmpl_time = val; 5247 5248 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 5249 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5250 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5251 continue; 5252 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5253 } 5254 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 5255 return 0; 5256} 5257lpfc_vport_param_store(max_scsicmpl_time); 5258static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5259 5260/* 5261# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5262# range is [0,1]. Default value is 0. 5263*/ 5264LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5265 5266/* 5267# lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5268# range is [0,1]. Default value is 1. 5269*/ 5270LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5271 5272/* 5273 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5274 * range is [0,1]. Default value is 0. 5275 * For [0], FCP commands are issued to Work Queues based on upper layer 5276 * hardware queue index. 5277 * For [1], FCP commands are issued to a Work Queue associated with the 5278 * current CPU. 5279 * 5280 * LPFC_FCP_SCHED_BY_HDWQ == 0 5281 * LPFC_FCP_SCHED_BY_CPU == 1 5282 * 5283 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5284 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5285 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5286 * through WQs will be used. 5287 */ 5288LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5289 LPFC_FCP_SCHED_BY_HDWQ, 5290 LPFC_FCP_SCHED_BY_CPU, 5291 "Determine scheduling algorithm for " 5292 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5293 5294/* 5295 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5296 * range is [0,1]. Default value is 0. 5297 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5298 * For [1], GID_PT is used for NameServer queries after RSCN 5299 * 5300 */ 5301LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5302 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5303 "Determine algorithm NameServer queries after RSCN " 5304 "[0] - GID_FT, [1] - GID_PT"); 5305 5306/* 5307# lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5308# range is [0,1]. Default value is 0. 5309# For [0], bus reset issues target reset to ALL devices 5310# For [1], bus reset issues target reset to non-FCP2 devices 5311*/ 5312LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5313 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5314 5315 5316/* 5317# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5318# cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5319# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5320# is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5321# cr_delay is set to 0. 5322*/ 5323LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5324 "interrupt response is generated"); 5325 5326LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5327 "interrupt response is generated"); 5328 5329/* 5330# lpfc_multi_ring_support: Determines how many rings to spread available 5331# cmd/rsp IOCB entries across. 5332# Value range is [1,2]. Default value is 1. 5333*/ 5334LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5335 "SLI rings to spread IOCB entries across"); 5336 5337/* 5338# lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5339# identifies what rctl value to configure the additional ring for. 5340# Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5341*/ 5342LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5343 255, "Identifies RCTL for additional ring configuration"); 5344 5345/* 5346# lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5347# identifies what type value to configure the additional ring for. 5348# Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5349*/ 5350LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5351 255, "Identifies TYPE for additional ring configuration"); 5352 5353/* 5354# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5355# 0 = SmartSAN functionality disabled (default) 5356# 1 = SmartSAN functionality enabled 5357# This parameter will override the value of lpfc_fdmi_on module parameter. 5358# Value range is [0,1]. Default value is 0. 5359*/ 5360LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5361 5362/* 5363# lpfc_fdmi_on: Controls FDMI support. 5364# 0 No FDMI support 5365# 1 Traditional FDMI support (default) 5366# Traditional FDMI support means the driver will assume FDMI-2 support; 5367# however, if that fails, it will fallback to FDMI-1. 5368# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5369# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5370# lpfc_fdmi_on. 5371# Value range [0,1]. Default value is 1. 5372*/ 5373LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5374 5375/* 5376# Specifies the maximum number of ELS cmds we can have outstanding (for 5377# discovery). Value range is [1,64]. Default value = 32. 5378*/ 5379LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5380 "during discovery"); 5381 5382/* 5383# lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5384# will be scanned by the SCSI midlayer when sequential scanning is 5385# used; and is also the highest LUN ID allowed when the SCSI midlayer 5386# parses REPORT_LUN responses. The lpfc driver has no LUN count or 5387# LUN ID limit, but the SCSI midlayer requires this field for the uses 5388# above. The lpfc driver limits the default value to 255 for two reasons. 5389# As it bounds the sequential scan loop, scanning for thousands of luns 5390# on a target can take minutes of wall clock time. Additionally, 5391# there are FC targets, such as JBODs, that only recognize 8-bits of 5392# LUN ID. When they receive a value greater than 8 bits, they chop off 5393# the high order bits. In other words, they see LUN IDs 0, 256, 512, 5394# and so on all as LUN ID 0. This causes the linux kernel, which sees 5395# valid responses at each of the LUN IDs, to believe there are multiple 5396# devices present, when in fact, there is only 1. 5397# A customer that is aware of their target behaviors, and the results as 5398# indicated above, is welcome to increase the lpfc_max_luns value. 5399# As mentioned, this value is not used by the lpfc driver, only the 5400# SCSI midlayer. 5401# Value range is [0,65535]. Default value is 255. 5402# NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5403*/ 5404LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5405 5406/* 5407# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5408# Value range is [1,255], default value is 10. 5409*/ 5410LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5411 "Milliseconds driver will wait between polling FCP ring"); 5412 5413/* 5414# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5415# to complete in seconds. Value range is [5,180], default value is 60. 5416*/ 5417LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5418 "Maximum time to wait for task management commands to complete"); 5419/* 5420# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5421# support this feature 5422# 0 = MSI disabled 5423# 1 = MSI enabled 5424# 2 = MSI-X enabled (default) 5425# Value range is [0,2]. Default value is 2. 5426*/ 5427LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5428 "MSI-X (2), if possible"); 5429 5430/* 5431 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5432 * 5433 * 0 = NVME OAS disabled 5434 * 1 = NVME OAS enabled 5435 * 5436 * Value range is [0,1]. Default value is 0. 5437 */ 5438LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5439 "Use OAS bit on NVME IOs"); 5440 5441/* 5442 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5443 * 5444 * 0 = Put NVME Command in SGL 5445 * 1 = Embed NVME Command in WQE (unless G7) 5446 * 2 = Embed NVME Command in WQE (force) 5447 * 5448 * Value range is [0,2]. Default value is 1. 5449 */ 5450LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5451 "Embed NVME Command in WQE"); 5452 5453/* 5454 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5455 * the driver will advertise it supports to the SCSI layer. 5456 * 5457 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5458 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5459 * 5460 * Value range is [0,256]. Default value is 8. 5461 */ 5462LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5463 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5464 "Set the number of SCSI Queues advertised"); 5465 5466/* 5467 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5468 * will advertise it supports to the NVME and SCSI layers. This also 5469 * will map to the number of CQ/WQ pairs the driver will create. 5470 * 5471 * The NVME Layer will try to create this many, plus 1 administrative 5472 * hardware queue. The administrative queue will always map to WQ 0 5473 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5474 * 5475 * 0 = Configure the number of hdw queues to the number of active CPUs. 5476 * 1,256 = Manually specify how many hdw queues to use. 5477 * 5478 * Value range is [0,256]. Default value is 0. 5479 */ 5480LPFC_ATTR_R(hdw_queue, 5481 LPFC_HBA_HDWQ_DEF, 5482 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5483 "Set the number of I/O Hardware Queues"); 5484 5485#if IS_ENABLED(CONFIG_X86) 5486/** 5487 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5488 * irq_chann_mode 5489 * @phba: Pointer to HBA context object. 5490 **/ 5491static void 5492lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5493{ 5494 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5495 const struct cpumask *sibling_mask; 5496 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5497 5498 cpumask_clear(aff_mask); 5499 5500 if (phba->irq_chann_mode == NUMA_MODE) { 5501 /* Check if we're a NUMA architecture */ 5502 numa_node = dev_to_node(&phba->pcidev->dev); 5503 if (numa_node == NUMA_NO_NODE) { 5504 phba->irq_chann_mode = NORMAL_MODE; 5505 return; 5506 } 5507 } 5508 5509 for_each_possible_cpu(cpu) { 5510 switch (phba->irq_chann_mode) { 5511 case NUMA_MODE: 5512 if (cpu_to_node(cpu) == numa_node) 5513 cpumask_set_cpu(cpu, aff_mask); 5514 break; 5515 case NHT_MODE: 5516 sibling_mask = topology_sibling_cpumask(cpu); 5517 first_cpu = cpumask_first(sibling_mask); 5518 if (first_cpu < nr_cpu_ids) 5519 cpumask_set_cpu(first_cpu, aff_mask); 5520 break; 5521 default: 5522 break; 5523 } 5524 } 5525} 5526#endif 5527 5528static void 5529lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5530{ 5531#if IS_ENABLED(CONFIG_X86) 5532 switch (boot_cpu_data.x86_vendor) { 5533 case X86_VENDOR_AMD: 5534 /* If AMD architecture, then default is NUMA_MODE */ 5535 phba->irq_chann_mode = NUMA_MODE; 5536 break; 5537 case X86_VENDOR_INTEL: 5538 /* If Intel architecture, then default is no hyperthread mode */ 5539 phba->irq_chann_mode = NHT_MODE; 5540 break; 5541 default: 5542 phba->irq_chann_mode = NORMAL_MODE; 5543 break; 5544 } 5545 lpfc_cpumask_irq_mode_init(phba); 5546#else 5547 phba->irq_chann_mode = NORMAL_MODE; 5548#endif 5549} 5550 5551/* 5552 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5553 * for Hardware Queues to utilize. This also will map to the number 5554 * of EQ / MSI-X vectors the driver will create. This should never be 5555 * more than the number of Hardware Queues 5556 * 5557 * 0 = Configure number of IRQ Channels to: 5558 * if AMD architecture, number of CPUs on HBA's NUMA node 5559 * if Intel architecture, number of physical CPUs. 5560 * otherwise, number of active CPUs. 5561 * [1,256] = Manually specify how many IRQ Channels to use. 5562 * 5563 * Value range is [0,256]. Default value is [0]. 5564 */ 5565static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5566module_param(lpfc_irq_chann, uint, 0444); 5567MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5568 5569/* lpfc_irq_chann_init - Set the hba irq_chann initial value 5570 * @phba: lpfc_hba pointer. 5571 * @val: contains the initial value 5572 * 5573 * Description: 5574 * Validates the initial value is within range and assigns it to the 5575 * adapter. If not in range, an error message is posted and the 5576 * default value is assigned. 5577 * 5578 * Returns: 5579 * zero if value is in range and is set 5580 * -EINVAL if value was out of range 5581 **/ 5582static int 5583lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5584{ 5585 const struct cpumask *aff_mask; 5586 5587 if (phba->cfg_use_msi != 2) { 5588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5589 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5590 phba->cfg_use_msi); 5591 phba->irq_chann_mode = NORMAL_MODE; 5592 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5593 return 0; 5594 } 5595 5596 /* Check if default setting was passed */ 5597 if (val == LPFC_IRQ_CHANN_DEF && 5598 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5599 phba->sli_rev == LPFC_SLI_REV4) 5600 lpfc_assign_default_irq_chann(phba); 5601 5602 if (phba->irq_chann_mode != NORMAL_MODE) { 5603 aff_mask = &phba->sli4_hba.irq_aff_mask; 5604 5605 if (cpumask_empty(aff_mask)) { 5606 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5607 "8533 Could not identify CPUS for " 5608 "mode %d, ignoring\n", 5609 phba->irq_chann_mode); 5610 phba->irq_chann_mode = NORMAL_MODE; 5611 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5612 } else { 5613 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5614 5615 /* If no hyperthread mode, then set hdwq count to 5616 * aff_mask weight as well 5617 */ 5618 if (phba->irq_chann_mode == NHT_MODE) 5619 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5620 5621 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5622 "8543 lpfc_irq_chann set to %u " 5623 "(mode: %d)\n", phba->cfg_irq_chann, 5624 phba->irq_chann_mode); 5625 } 5626 } else { 5627 if (val > LPFC_IRQ_CHANN_MAX) { 5628 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5629 "8545 lpfc_irq_chann attribute cannot " 5630 "be set to %u, allowed range is " 5631 "[%u,%u]\n", 5632 val, 5633 LPFC_IRQ_CHANN_MIN, 5634 LPFC_IRQ_CHANN_MAX); 5635 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5636 return -EINVAL; 5637 } 5638 if (phba->sli_rev == LPFC_SLI_REV4) { 5639 phba->cfg_irq_chann = val; 5640 } else { 5641 phba->cfg_irq_chann = 2; 5642 phba->cfg_hdw_queue = 1; 5643 } 5644 } 5645 5646 return 0; 5647} 5648 5649/** 5650 * lpfc_irq_chann_show - Display value of irq_chann 5651 * @dev: class converted to a Scsi_host structure. 5652 * @attr: device attribute, not used. 5653 * @buf: on return contains a string with the list sizes 5654 * 5655 * Returns: size of formatted string. 5656 **/ 5657static ssize_t 5658lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5659 char *buf) 5660{ 5661 struct Scsi_Host *shost = class_to_shost(dev); 5662 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5663 struct lpfc_hba *phba = vport->phba; 5664 5665 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5666} 5667 5668static DEVICE_ATTR_RO(lpfc_irq_chann); 5669 5670/* 5671# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5672# 0 = HBA resets disabled 5673# 1 = HBA resets enabled (default) 5674# 2 = HBA reset via PCI bus reset enabled 5675# Value range is [0,2]. Default value is 1. 5676*/ 5677LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5678 5679/* 5680# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5681# 0 = HBA Heartbeat disabled 5682# 1 = HBA Heartbeat enabled (default) 5683# Value range is [0,1]. Default value is 1. 5684*/ 5685LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5686 5687/* 5688# lpfc_EnableXLane: Enable Express Lane Feature 5689# 0x0 Express Lane Feature disabled 5690# 0x1 Express Lane Feature enabled 5691# Value range is [0,1]. Default value is 0. 5692*/ 5693LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5694 5695/* 5696# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5697# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5698# Value range is [0x0,0x7f]. Default value is 0 5699*/ 5700LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5701 5702/* 5703# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5704# 0 = BlockGuard disabled (default) 5705# 1 = BlockGuard enabled 5706# Value range is [0,1]. Default value is 0. 5707*/ 5708LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5709 5710/* 5711# lpfc_prot_mask: 5712# - Bit mask of host protection capabilities used to register with the 5713# SCSI mid-layer 5714# - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5715# - Allows you to ultimately specify which profiles to use 5716# - Default will result in registering capabilities for all profiles. 5717# - SHOST_DIF_TYPE1_PROTECTION 1 5718# HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5719# - SHOST_DIX_TYPE0_PROTECTION 8 5720# HBA supports DIX Type 0: Host to HBA protection only 5721# - SHOST_DIX_TYPE1_PROTECTION 16 5722# HBA supports DIX Type 1: Host to HBA Type 1 protection 5723# 5724*/ 5725LPFC_ATTR(prot_mask, 5726 (SHOST_DIF_TYPE1_PROTECTION | 5727 SHOST_DIX_TYPE0_PROTECTION | 5728 SHOST_DIX_TYPE1_PROTECTION), 5729 0, 5730 (SHOST_DIF_TYPE1_PROTECTION | 5731 SHOST_DIX_TYPE0_PROTECTION | 5732 SHOST_DIX_TYPE1_PROTECTION), 5733 "T10-DIF host protection capabilities mask"); 5734 5735/* 5736# lpfc_prot_guard: 5737# - Bit mask of protection guard types to register with the SCSI mid-layer 5738# - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5739# - Allows you to ultimately specify which profiles to use 5740# - Default will result in registering capabilities for all guard types 5741# 5742*/ 5743LPFC_ATTR(prot_guard, 5744 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5745 "T10-DIF host protection guard type"); 5746 5747/* 5748 * Delay initial NPort discovery when Clean Address bit is cleared in 5749 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5750 * This parameter can have value 0 or 1. 5751 * When this parameter is set to 0, no delay is added to the initial 5752 * discovery. 5753 * When this parameter is set to non-zero value, initial Nport discovery is 5754 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5755 * accept and FCID/Fabric name/Fabric portname is changed. 5756 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5757 * when Clean Address bit is cleared in FLOGI/FDISC 5758 * accept and FCID/Fabric name/Fabric portname is changed. 5759 * Default value is 0. 5760 */ 5761LPFC_ATTR(delay_discovery, 0, 0, 1, 5762 "Delay NPort discovery when Clean Address bit is cleared."); 5763 5764/* 5765 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5766 * This value can be set to values between 64 and 4096. The default value 5767 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5768 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5769 * Because of the additional overhead involved in setting up T10-DIF, 5770 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5771 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5772 */ 5773static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5774module_param(lpfc_sg_seg_cnt, uint, 0444); 5775MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5776 5777/** 5778 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5779 * configured for the adapter 5780 * @dev: class converted to a Scsi_host structure. 5781 * @attr: device attribute, not used. 5782 * @buf: on return contains a string with the list sizes 5783 * 5784 * Returns: size of formatted string. 5785 **/ 5786static ssize_t 5787lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5788 char *buf) 5789{ 5790 struct Scsi_Host *shost = class_to_shost(dev); 5791 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5792 struct lpfc_hba *phba = vport->phba; 5793 int len; 5794 5795 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5796 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5797 5798 len += scnprintf(buf + len, PAGE_SIZE - len, 5799 "Cfg: %d SCSI: %d NVME: %d\n", 5800 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5801 phba->cfg_nvme_seg_cnt); 5802 return len; 5803} 5804 5805static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5806 5807/** 5808 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5809 * @phba: lpfc_hba pointer. 5810 * @val: contains the initial value 5811 * 5812 * Description: 5813 * Validates the initial value is within range and assigns it to the 5814 * adapter. If not in range, an error message is posted and the 5815 * default value is assigned. 5816 * 5817 * Returns: 5818 * zero if value is in range and is set 5819 * -EINVAL if value was out of range 5820 **/ 5821static int 5822lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5823{ 5824 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5825 phba->cfg_sg_seg_cnt = val; 5826 return 0; 5827 } 5828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5829 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 5830 "allowed range is [%d, %d]\n", 5831 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5832 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5833 return -EINVAL; 5834} 5835 5836/* 5837 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5838 * 0 = MDS Diagnostics disabled (default) 5839 * 1 = MDS Diagnostics enabled 5840 * Value range is [0,1]. Default value is 0. 5841 */ 5842LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5843 5844/* 5845 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5846 * 0 = Disable firmware logging (default) 5847 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 5848 * Value range [0..4]. Default value is 0 5849 */ 5850LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 5851lpfc_param_show(ras_fwlog_buffsize); 5852 5853static ssize_t 5854lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 5855{ 5856 int ret = 0; 5857 enum ras_state state; 5858 5859 if (!lpfc_rangecheck(val, 0, 4)) 5860 return -EINVAL; 5861 5862 if (phba->cfg_ras_fwlog_buffsize == val) 5863 return 0; 5864 5865 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 5866 return -EINVAL; 5867 5868 spin_lock_irq(&phba->ras_fwlog_lock); 5869 state = phba->ras_fwlog.state; 5870 spin_unlock_irq(&phba->ras_fwlog_lock); 5871 5872 if (state == REG_INPROGRESS) { 5873 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 5874 "registration is in progress\n"); 5875 return -EBUSY; 5876 } 5877 5878 /* For disable logging: stop the logs and free the DMA. 5879 * For ras_fwlog_buffsize size change we still need to free and 5880 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 5881 */ 5882 phba->cfg_ras_fwlog_buffsize = val; 5883 if (state == ACTIVE) { 5884 lpfc_ras_stop_fwlog(phba); 5885 lpfc_sli4_ras_dma_free(phba); 5886 } 5887 5888 lpfc_sli4_ras_init(phba); 5889 if (phba->ras_fwlog.ras_enabled) 5890 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 5891 LPFC_RAS_ENABLE_LOGGING); 5892 return ret; 5893} 5894 5895lpfc_param_store(ras_fwlog_buffsize); 5896static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 5897 5898/* 5899 * lpfc_ras_fwlog_level: Firmware logging verbosity level 5900 * Valid only if firmware logging is enabled 5901 * 0(Least Verbosity) 4 (most verbosity) 5902 * Value range is [0..4]. Default value is 0 5903 */ 5904LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 5905 5906/* 5907 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 5908 * Default function which has RAS support : 0 5909 * Value Range is [0..3]. 5910 * FW logging is a global action and enablement is via a specific 5911 * port. 5912 */ 5913LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 3, "Firmware Logging Enabled on Function"); 5914 5915/* 5916 * lpfc_enable_bbcr: Enable BB Credit Recovery 5917 * 0 = BB Credit Recovery disabled 5918 * 1 = BB Credit Recovery enabled (default) 5919 * Value range is [0,1]. Default value is 1. 5920 */ 5921LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 5922 5923/* Signaling module parameters */ 5924int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 5925module_param(lpfc_fabric_cgn_frequency, int, 0444); 5926MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 5927 5928unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 5929module_param(lpfc_acqe_cgn_frequency, byte, 0444); 5930MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 5931 5932int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 5933module_param(lpfc_use_cgn_signal, int, 0444); 5934MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 5935 5936/* 5937 * lpfc_enable_dpp: Enable DPP on G7 5938 * 0 = DPP on G7 disabled 5939 * 1 = DPP on G7 enabled (default) 5940 * Value range is [0,1]. Default value is 1. 5941 */ 5942LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 5943 5944/* 5945 * lpfc_enable_mi: Enable FDMI MIB 5946 * 0 = disabled 5947 * 1 = enabled (default) 5948 * Value range is [0,1]. 5949 */ 5950LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 5951 5952/* 5953 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 5954 * either vmid_app_header or vmid_priority_tagging is enabled. 5955 * 4 - 255 = vmid support enabled for 4-255 VMs 5956 * Value range is [4,255]. 5957 */ 5958LPFC_ATTR_R(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 5959 "Maximum number of VMs supported"); 5960 5961/* 5962 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 5963 * 0 = Timeout is disabled 5964 * Value range is [0,24]. 5965 */ 5966LPFC_ATTR_R(vmid_inactivity_timeout, 4, 0, 24, 5967 "Inactivity timeout in hours"); 5968 5969/* 5970 * lpfc_vmid_app_header: Enable App Header VMID support 5971 * 0 = Support is disabled (default) 5972 * 1 = Support is enabled 5973 * Value range is [0,1]. 5974 */ 5975LPFC_ATTR_R(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 5976 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 5977 "Enable App Header VMID support"); 5978 5979/* 5980 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 5981 * 0 = Support is disabled (default) 5982 * 1 = Allow supported targets only 5983 * 2 = Allow all targets 5984 * Value range is [0,2]. 5985 */ 5986LPFC_ATTR_R(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 5987 LPFC_VMID_PRIO_TAG_DISABLE, 5988 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 5989 "Enable Priority Tagging VMID support"); 5990 5991static struct attribute *lpfc_hba_attrs[] = { 5992 &dev_attr_nvme_info.attr, 5993 &dev_attr_scsi_stat.attr, 5994 &dev_attr_bg_info.attr, 5995 &dev_attr_bg_guard_err.attr, 5996 &dev_attr_bg_apptag_err.attr, 5997 &dev_attr_bg_reftag_err.attr, 5998 &dev_attr_info.attr, 5999 &dev_attr_serialnum.attr, 6000 &dev_attr_modeldesc.attr, 6001 &dev_attr_modelname.attr, 6002 &dev_attr_programtype.attr, 6003 &dev_attr_portnum.attr, 6004 &dev_attr_fwrev.attr, 6005 &dev_attr_hdw.attr, 6006 &dev_attr_option_rom_version.attr, 6007 &dev_attr_link_state.attr, 6008 &dev_attr_num_discovered_ports.attr, 6009 &dev_attr_lpfc_drvr_version.attr, 6010 &dev_attr_lpfc_enable_fip.attr, 6011 &dev_attr_lpfc_temp_sensor.attr, 6012 &dev_attr_lpfc_log_verbose.attr, 6013 &dev_attr_lpfc_lun_queue_depth.attr, 6014 &dev_attr_lpfc_tgt_queue_depth.attr, 6015 &dev_attr_lpfc_hba_queue_depth.attr, 6016 &dev_attr_lpfc_peer_port_login.attr, 6017 &dev_attr_lpfc_nodev_tmo.attr, 6018 &dev_attr_lpfc_devloss_tmo.attr, 6019 &dev_attr_lpfc_enable_fc4_type.attr, 6020 &dev_attr_lpfc_fcp_class.attr, 6021 &dev_attr_lpfc_use_adisc.attr, 6022 &dev_attr_lpfc_first_burst_size.attr, 6023 &dev_attr_lpfc_ack0.attr, 6024 &dev_attr_lpfc_xri_rebalancing.attr, 6025 &dev_attr_lpfc_topology.attr, 6026 &dev_attr_lpfc_scan_down.attr, 6027 &dev_attr_lpfc_link_speed.attr, 6028 &dev_attr_lpfc_fcp_io_sched.attr, 6029 &dev_attr_lpfc_ns_query.attr, 6030 &dev_attr_lpfc_fcp2_no_tgt_reset.attr, 6031 &dev_attr_lpfc_cr_delay.attr, 6032 &dev_attr_lpfc_cr_count.attr, 6033 &dev_attr_lpfc_multi_ring_support.attr, 6034 &dev_attr_lpfc_multi_ring_rctl.attr, 6035 &dev_attr_lpfc_multi_ring_type.attr, 6036 &dev_attr_lpfc_fdmi_on.attr, 6037 &dev_attr_lpfc_enable_SmartSAN.attr, 6038 &dev_attr_lpfc_max_luns.attr, 6039 &dev_attr_lpfc_enable_npiv.attr, 6040 &dev_attr_lpfc_fcf_failover_policy.attr, 6041 &dev_attr_lpfc_enable_rrq.attr, 6042 &dev_attr_lpfc_fcp_wait_abts_rsp.attr, 6043 &dev_attr_nport_evt_cnt.attr, 6044 &dev_attr_board_mode.attr, 6045 &dev_attr_lpfc_xcvr_data.attr, 6046 &dev_attr_max_vpi.attr, 6047 &dev_attr_used_vpi.attr, 6048 &dev_attr_max_rpi.attr, 6049 &dev_attr_used_rpi.attr, 6050 &dev_attr_max_xri.attr, 6051 &dev_attr_used_xri.attr, 6052 &dev_attr_npiv_info.attr, 6053 &dev_attr_issue_reset.attr, 6054 &dev_attr_lpfc_poll.attr, 6055 &dev_attr_lpfc_poll_tmo.attr, 6056 &dev_attr_lpfc_task_mgmt_tmo.attr, 6057 &dev_attr_lpfc_use_msi.attr, 6058 &dev_attr_lpfc_nvme_oas.attr, 6059 &dev_attr_lpfc_nvme_embed_cmd.attr, 6060 &dev_attr_lpfc_fcp_imax.attr, 6061 &dev_attr_lpfc_force_rscn.attr, 6062 &dev_attr_lpfc_cq_poll_threshold.attr, 6063 &dev_attr_lpfc_cq_max_proc_limit.attr, 6064 &dev_attr_lpfc_fcp_cpu_map.attr, 6065 &dev_attr_lpfc_fcp_mq_threshold.attr, 6066 &dev_attr_lpfc_hdw_queue.attr, 6067 &dev_attr_lpfc_irq_chann.attr, 6068 &dev_attr_lpfc_suppress_rsp.attr, 6069 &dev_attr_lpfc_nvmet_mrq.attr, 6070 &dev_attr_lpfc_nvmet_mrq_post.attr, 6071 &dev_attr_lpfc_nvme_enable_fb.attr, 6072 &dev_attr_lpfc_nvmet_fb_size.attr, 6073 &dev_attr_lpfc_enable_bg.attr, 6074 &dev_attr_lpfc_enable_hba_reset.attr, 6075 &dev_attr_lpfc_enable_hba_heartbeat.attr, 6076 &dev_attr_lpfc_EnableXLane.attr, 6077 &dev_attr_lpfc_XLanePriority.attr, 6078 &dev_attr_lpfc_xlane_lun.attr, 6079 &dev_attr_lpfc_xlane_tgt.attr, 6080 &dev_attr_lpfc_xlane_vpt.attr, 6081 &dev_attr_lpfc_xlane_lun_state.attr, 6082 &dev_attr_lpfc_xlane_lun_status.attr, 6083 &dev_attr_lpfc_xlane_priority.attr, 6084 &dev_attr_lpfc_sg_seg_cnt.attr, 6085 &dev_attr_lpfc_max_scsicmpl_time.attr, 6086 &dev_attr_lpfc_aer_support.attr, 6087 &dev_attr_lpfc_aer_state_cleanup.attr, 6088 &dev_attr_lpfc_sriov_nr_virtfn.attr, 6089 &dev_attr_lpfc_req_fw_upgrade.attr, 6090 &dev_attr_lpfc_suppress_link_up.attr, 6091 &dev_attr_iocb_hw.attr, 6092 &dev_attr_pls.attr, 6093 &dev_attr_pt.attr, 6094 &dev_attr_txq_hw.attr, 6095 &dev_attr_txcmplq_hw.attr, 6096 &dev_attr_lpfc_sriov_hw_max_virtfn.attr, 6097 &dev_attr_protocol.attr, 6098 &dev_attr_lpfc_xlane_supported.attr, 6099 &dev_attr_lpfc_enable_mds_diags.attr, 6100 &dev_attr_lpfc_ras_fwlog_buffsize.attr, 6101 &dev_attr_lpfc_ras_fwlog_level.attr, 6102 &dev_attr_lpfc_ras_fwlog_func.attr, 6103 &dev_attr_lpfc_enable_bbcr.attr, 6104 &dev_attr_lpfc_enable_dpp.attr, 6105 &dev_attr_lpfc_enable_mi.attr, 6106 &dev_attr_cmf_info.attr, 6107 &dev_attr_lpfc_max_vmid.attr, 6108 &dev_attr_lpfc_vmid_inactivity_timeout.attr, 6109 &dev_attr_lpfc_vmid_app_header.attr, 6110 &dev_attr_lpfc_vmid_priority_tagging.attr, 6111 NULL, 6112}; 6113 6114static const struct attribute_group lpfc_hba_attr_group = { 6115 .attrs = lpfc_hba_attrs 6116}; 6117 6118const struct attribute_group *lpfc_hba_groups[] = { 6119 &lpfc_hba_attr_group, 6120 NULL 6121}; 6122 6123static struct attribute *lpfc_vport_attrs[] = { 6124 &dev_attr_info.attr, 6125 &dev_attr_link_state.attr, 6126 &dev_attr_num_discovered_ports.attr, 6127 &dev_attr_lpfc_drvr_version.attr, 6128 &dev_attr_lpfc_log_verbose.attr, 6129 &dev_attr_lpfc_lun_queue_depth.attr, 6130 &dev_attr_lpfc_tgt_queue_depth.attr, 6131 &dev_attr_lpfc_nodev_tmo.attr, 6132 &dev_attr_lpfc_devloss_tmo.attr, 6133 &dev_attr_lpfc_hba_queue_depth.attr, 6134 &dev_attr_lpfc_peer_port_login.attr, 6135 &dev_attr_lpfc_restrict_login.attr, 6136 &dev_attr_lpfc_fcp_class.attr, 6137 &dev_attr_lpfc_use_adisc.attr, 6138 &dev_attr_lpfc_first_burst_size.attr, 6139 &dev_attr_lpfc_max_luns.attr, 6140 &dev_attr_nport_evt_cnt.attr, 6141 &dev_attr_npiv_info.attr, 6142 &dev_attr_lpfc_enable_da_id.attr, 6143 &dev_attr_lpfc_max_scsicmpl_time.attr, 6144 &dev_attr_lpfc_static_vport.attr, 6145 &dev_attr_cmf_info.attr, 6146 NULL, 6147}; 6148 6149static const struct attribute_group lpfc_vport_attr_group = { 6150 .attrs = lpfc_vport_attrs 6151}; 6152 6153const struct attribute_group *lpfc_vport_groups[] = { 6154 &lpfc_vport_attr_group, 6155 NULL 6156}; 6157 6158/** 6159 * sysfs_ctlreg_write - Write method for writing to ctlreg 6160 * @filp: open sysfs file 6161 * @kobj: kernel kobject that contains the kernel class device. 6162 * @bin_attr: kernel attributes passed to us. 6163 * @buf: contains the data to be written to the adapter IOREG space. 6164 * @off: offset into buffer to beginning of data. 6165 * @count: bytes to transfer. 6166 * 6167 * Description: 6168 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6169 * Uses the adapter io control registers to send buf contents to the adapter. 6170 * 6171 * Returns: 6172 * -ERANGE off and count combo out of range 6173 * -EINVAL off, count or buff address invalid 6174 * -EPERM adapter is offline 6175 * value of count, buf contents written 6176 **/ 6177static ssize_t 6178sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6179 struct bin_attribute *bin_attr, 6180 char *buf, loff_t off, size_t count) 6181{ 6182 size_t buf_off; 6183 struct device *dev = container_of(kobj, struct device, kobj); 6184 struct Scsi_Host *shost = class_to_shost(dev); 6185 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6186 struct lpfc_hba *phba = vport->phba; 6187 6188 if (phba->sli_rev >= LPFC_SLI_REV4) 6189 return -EPERM; 6190 6191 if ((off + count) > FF_REG_AREA_SIZE) 6192 return -ERANGE; 6193 6194 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6195 return 0; 6196 6197 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6198 return -EINVAL; 6199 6200 /* This is to protect HBA registers from accidental writes. */ 6201 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6202 return -EINVAL; 6203 6204 if (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) 6205 return -EPERM; 6206 6207 spin_lock_irq(&phba->hbalock); 6208 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6209 buf_off += sizeof(uint32_t)) 6210 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6211 phba->ctrl_regs_memmap_p + off + buf_off); 6212 6213 spin_unlock_irq(&phba->hbalock); 6214 6215 return count; 6216} 6217 6218/** 6219 * sysfs_ctlreg_read - Read method for reading from ctlreg 6220 * @filp: open sysfs file 6221 * @kobj: kernel kobject that contains the kernel class device. 6222 * @bin_attr: kernel attributes passed to us. 6223 * @buf: if successful contains the data from the adapter IOREG space. 6224 * @off: offset into buffer to beginning of data. 6225 * @count: bytes to transfer. 6226 * 6227 * Description: 6228 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6229 * Uses the adapter io control registers to read data into buf. 6230 * 6231 * Returns: 6232 * -ERANGE off and count combo out of range 6233 * -EINVAL off, count or buff address invalid 6234 * value of count, buf contents read 6235 **/ 6236static ssize_t 6237sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6238 struct bin_attribute *bin_attr, 6239 char *buf, loff_t off, size_t count) 6240{ 6241 size_t buf_off; 6242 uint32_t * tmp_ptr; 6243 struct device *dev = container_of(kobj, struct device, kobj); 6244 struct Scsi_Host *shost = class_to_shost(dev); 6245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6246 struct lpfc_hba *phba = vport->phba; 6247 6248 if (phba->sli_rev >= LPFC_SLI_REV4) 6249 return -EPERM; 6250 6251 if (off > FF_REG_AREA_SIZE) 6252 return -ERANGE; 6253 6254 if ((off + count) > FF_REG_AREA_SIZE) 6255 count = FF_REG_AREA_SIZE - off; 6256 6257 if (count == 0) return 0; 6258 6259 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6260 return -EINVAL; 6261 6262 spin_lock_irq(&phba->hbalock); 6263 6264 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6265 tmp_ptr = (uint32_t *)(buf + buf_off); 6266 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6267 } 6268 6269 spin_unlock_irq(&phba->hbalock); 6270 6271 return count; 6272} 6273 6274static struct bin_attribute sysfs_ctlreg_attr = { 6275 .attr = { 6276 .name = "ctlreg", 6277 .mode = S_IRUSR | S_IWUSR, 6278 }, 6279 .size = 256, 6280 .read = sysfs_ctlreg_read, 6281 .write = sysfs_ctlreg_write, 6282}; 6283 6284/** 6285 * sysfs_mbox_write - Write method for writing information via mbox 6286 * @filp: open sysfs file 6287 * @kobj: kernel kobject that contains the kernel class device. 6288 * @bin_attr: kernel attributes passed to us. 6289 * @buf: contains the data to be written to sysfs mbox. 6290 * @off: offset into buffer to beginning of data. 6291 * @count: bytes to transfer. 6292 * 6293 * Description: 6294 * Deprecated function. All mailbox access from user space is performed via the 6295 * bsg interface. 6296 * 6297 * Returns: 6298 * -EPERM operation not permitted 6299 **/ 6300static ssize_t 6301sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6302 struct bin_attribute *bin_attr, 6303 char *buf, loff_t off, size_t count) 6304{ 6305 return -EPERM; 6306} 6307 6308/** 6309 * sysfs_mbox_read - Read method for reading information via mbox 6310 * @filp: open sysfs file 6311 * @kobj: kernel kobject that contains the kernel class device. 6312 * @bin_attr: kernel attributes passed to us. 6313 * @buf: contains the data to be read from sysfs mbox. 6314 * @off: offset into buffer to beginning of data. 6315 * @count: bytes to transfer. 6316 * 6317 * Description: 6318 * Deprecated function. All mailbox access from user space is performed via the 6319 * bsg interface. 6320 * 6321 * Returns: 6322 * -EPERM operation not permitted 6323 **/ 6324static ssize_t 6325sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6326 struct bin_attribute *bin_attr, 6327 char *buf, loff_t off, size_t count) 6328{ 6329 return -EPERM; 6330} 6331 6332static struct bin_attribute sysfs_mbox_attr = { 6333 .attr = { 6334 .name = "mbox", 6335 .mode = S_IRUSR | S_IWUSR, 6336 }, 6337 .size = MAILBOX_SYSFS_MAX, 6338 .read = sysfs_mbox_read, 6339 .write = sysfs_mbox_write, 6340}; 6341 6342/** 6343 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6344 * @vport: address of lpfc vport structure. 6345 * 6346 * Return codes: 6347 * zero on success 6348 * error return code from sysfs_create_bin_file() 6349 **/ 6350int 6351lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6352{ 6353 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6354 int error; 6355 6356 /* Virtual ports do not need ctrl_reg and mbox */ 6357 if (vport->port_type == LPFC_NPIV_PORT) 6358 return 0; 6359 6360 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6361 &sysfs_ctlreg_attr); 6362 if (error) 6363 goto out; 6364 6365 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6366 &sysfs_mbox_attr); 6367 if (error) 6368 goto out_remove_ctlreg_attr; 6369 6370 return 0; 6371out_remove_ctlreg_attr: 6372 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6373out: 6374 return error; 6375} 6376 6377/** 6378 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6379 * @vport: address of lpfc vport structure. 6380 **/ 6381void 6382lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6383{ 6384 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6385 6386 /* Virtual ports do not need ctrl_reg and mbox */ 6387 if (vport->port_type == LPFC_NPIV_PORT) 6388 return; 6389 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6390 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6391} 6392 6393/* 6394 * Dynamic FC Host Attributes Support 6395 */ 6396 6397/** 6398 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6399 * @shost: kernel scsi host pointer. 6400 **/ 6401static void 6402lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6403{ 6404 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6405 6406 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6407 sizeof fc_host_symbolic_name(shost)); 6408} 6409 6410/** 6411 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6412 * @shost: kernel scsi host pointer. 6413 **/ 6414static void 6415lpfc_get_host_port_id(struct Scsi_Host *shost) 6416{ 6417 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6418 6419 /* note: fc_myDID already in cpu endianness */ 6420 fc_host_port_id(shost) = vport->fc_myDID; 6421} 6422 6423/** 6424 * lpfc_get_host_port_type - Set the value of the scsi host port type 6425 * @shost: kernel scsi host pointer. 6426 **/ 6427static void 6428lpfc_get_host_port_type(struct Scsi_Host *shost) 6429{ 6430 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6431 struct lpfc_hba *phba = vport->phba; 6432 6433 if (vport->port_type == LPFC_NPIV_PORT) { 6434 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6435 } else if (lpfc_is_link_up(phba)) { 6436 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6437 if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) 6438 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6439 else 6440 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6441 } else { 6442 if (test_bit(FC_FABRIC, &vport->fc_flag)) 6443 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6444 else 6445 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6446 } 6447 } else 6448 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6449} 6450 6451/** 6452 * lpfc_get_host_port_state - Set the value of the scsi host port state 6453 * @shost: kernel scsi host pointer. 6454 **/ 6455static void 6456lpfc_get_host_port_state(struct Scsi_Host *shost) 6457{ 6458 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6459 struct lpfc_hba *phba = vport->phba; 6460 6461 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) 6462 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6463 else { 6464 switch (phba->link_state) { 6465 case LPFC_LINK_UNKNOWN: 6466 case LPFC_LINK_DOWN: 6467 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6468 break; 6469 case LPFC_LINK_UP: 6470 case LPFC_CLEAR_LA: 6471 case LPFC_HBA_READY: 6472 /* Links up, reports port state accordingly */ 6473 if (vport->port_state < LPFC_VPORT_READY) 6474 fc_host_port_state(shost) = 6475 FC_PORTSTATE_BYPASSED; 6476 else 6477 fc_host_port_state(shost) = 6478 FC_PORTSTATE_ONLINE; 6479 break; 6480 case LPFC_HBA_ERROR: 6481 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6482 break; 6483 default: 6484 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6485 break; 6486 } 6487 } 6488} 6489 6490/** 6491 * lpfc_get_host_speed - Set the value of the scsi host speed 6492 * @shost: kernel scsi host pointer. 6493 **/ 6494static void 6495lpfc_get_host_speed(struct Scsi_Host *shost) 6496{ 6497 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6498 struct lpfc_hba *phba = vport->phba; 6499 6500 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6501 switch(phba->fc_linkspeed) { 6502 case LPFC_LINK_SPEED_1GHZ: 6503 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6504 break; 6505 case LPFC_LINK_SPEED_2GHZ: 6506 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6507 break; 6508 case LPFC_LINK_SPEED_4GHZ: 6509 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6510 break; 6511 case LPFC_LINK_SPEED_8GHZ: 6512 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6513 break; 6514 case LPFC_LINK_SPEED_10GHZ: 6515 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6516 break; 6517 case LPFC_LINK_SPEED_16GHZ: 6518 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6519 break; 6520 case LPFC_LINK_SPEED_32GHZ: 6521 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6522 break; 6523 case LPFC_LINK_SPEED_64GHZ: 6524 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6525 break; 6526 case LPFC_LINK_SPEED_128GHZ: 6527 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6528 break; 6529 case LPFC_LINK_SPEED_256GHZ: 6530 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6531 break; 6532 default: 6533 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6534 break; 6535 } 6536 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6537 switch (phba->fc_linkspeed) { 6538 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6539 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6540 break; 6541 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6542 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6543 break; 6544 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6545 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6546 break; 6547 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6548 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6549 break; 6550 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6551 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6552 break; 6553 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6554 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6555 break; 6556 default: 6557 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6558 break; 6559 } 6560 } else 6561 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6562} 6563 6564/** 6565 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6566 * @shost: kernel scsi host pointer. 6567 **/ 6568static void 6569lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6570{ 6571 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6572 struct lpfc_hba *phba = vport->phba; 6573 u64 node_name; 6574 6575 if (vport->port_state > LPFC_FLOGI && 6576 (test_bit(FC_FABRIC, &vport->fc_flag) || 6577 (phba->fc_topology == LPFC_TOPOLOGY_LOOP && 6578 test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)))) 6579 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6580 else 6581 /* fabric is local port if there is no F/FL_Port */ 6582 node_name = 0; 6583 6584 fc_host_fabric_name(shost) = node_name; 6585} 6586 6587/** 6588 * lpfc_get_stats - Return statistical information about the adapter 6589 * @shost: kernel scsi host pointer. 6590 * 6591 * Notes: 6592 * NULL on error for link down, no mbox pool, sli2 active, 6593 * management not allowed, memory allocation error, or mbox error. 6594 * 6595 * Returns: 6596 * NULL for error 6597 * address of the adapter host statistics 6598 **/ 6599static struct fc_host_statistics * 6600lpfc_get_stats(struct Scsi_Host *shost) 6601{ 6602 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6603 struct lpfc_hba *phba = vport->phba; 6604 struct lpfc_sli *psli = &phba->sli; 6605 struct fc_host_statistics *hs = &phba->link_stats; 6606 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6607 LPFC_MBOXQ_t *pmboxq; 6608 MAILBOX_t *pmb; 6609 int rc = 0; 6610 6611 /* 6612 * prevent udev from issuing mailbox commands until the port is 6613 * configured. 6614 */ 6615 if (phba->link_state < LPFC_LINK_DOWN || 6616 !phba->mbox_mem_pool || 6617 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6618 return NULL; 6619 6620 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6621 return NULL; 6622 6623 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6624 if (!pmboxq) 6625 return NULL; 6626 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6627 6628 pmb = &pmboxq->u.mb; 6629 pmb->mbxCommand = MBX_READ_STATUS; 6630 pmb->mbxOwner = OWN_HOST; 6631 pmboxq->ctx_buf = NULL; 6632 pmboxq->vport = vport; 6633 6634 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { 6635 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6636 if (rc != MBX_SUCCESS) { 6637 mempool_free(pmboxq, phba->mbox_mem_pool); 6638 return NULL; 6639 } 6640 } else { 6641 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6642 if (rc != MBX_SUCCESS) { 6643 if (rc != MBX_TIMEOUT) 6644 mempool_free(pmboxq, phba->mbox_mem_pool); 6645 return NULL; 6646 } 6647 } 6648 6649 memset(hs, 0, sizeof (struct fc_host_statistics)); 6650 6651 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6652 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6653 6654 /* 6655 * The MBX_READ_STATUS returns tx_k_bytes which has to be 6656 * converted to words. 6657 * 6658 * Check if extended byte flag is set, to know when to collect upper 6659 * bits of 64 bit wide statistics counter. 6660 */ 6661 if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { 6662 hs->tx_words = (u64) 6663 ((((u64)(pmb->un.varRdStatus.xmit_xkb & 6664 RD_ST_XMIT_XKB_MASK) << 32) | 6665 (u64)pmb->un.varRdStatus.xmitByteCnt) * 6666 (u64)256); 6667 hs->rx_words = (u64) 6668 ((((u64)(pmb->un.varRdStatus.rcv_xkb & 6669 RD_ST_RCV_XKB_MASK) << 32) | 6670 (u64)pmb->un.varRdStatus.rcvByteCnt) * 6671 (u64)256); 6672 } else { 6673 hs->tx_words = (uint64_t) 6674 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6675 * (uint64_t)256); 6676 hs->rx_words = (uint64_t) 6677 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6678 * (uint64_t)256); 6679 } 6680 6681 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6682 pmb->mbxCommand = MBX_READ_LNK_STAT; 6683 pmb->mbxOwner = OWN_HOST; 6684 pmboxq->ctx_buf = NULL; 6685 pmboxq->vport = vport; 6686 6687 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { 6688 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6689 if (rc != MBX_SUCCESS) { 6690 mempool_free(pmboxq, phba->mbox_mem_pool); 6691 return NULL; 6692 } 6693 } else { 6694 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6695 if (rc != MBX_SUCCESS) { 6696 if (rc != MBX_TIMEOUT) 6697 mempool_free(pmboxq, phba->mbox_mem_pool); 6698 return NULL; 6699 } 6700 } 6701 6702 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6703 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6704 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6705 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6706 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6707 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6708 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6709 6710 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 6711 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 6712 6713 hs->link_failure_count -= lso->link_failure_count; 6714 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6715 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6716 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6717 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6718 hs->invalid_crc_count -= lso->invalid_crc_count; 6719 hs->error_frames -= lso->error_frames; 6720 6721 if (phba->hba_flag & HBA_FCOE_MODE) { 6722 hs->lip_count = -1; 6723 hs->nos_count = (phba->link_events >> 1); 6724 hs->nos_count -= lso->link_events; 6725 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6726 hs->lip_count = (phba->fc_eventTag >> 1); 6727 hs->lip_count -= lso->link_events; 6728 hs->nos_count = -1; 6729 } else { 6730 hs->lip_count = -1; 6731 hs->nos_count = (phba->fc_eventTag >> 1); 6732 hs->nos_count -= lso->link_events; 6733 } 6734 6735 hs->dumped_frames = -1; 6736 6737 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6738 6739 mempool_free(pmboxq, phba->mbox_mem_pool); 6740 6741 return hs; 6742} 6743 6744/** 6745 * lpfc_reset_stats - Copy the adapter link stats information 6746 * @shost: kernel scsi host pointer. 6747 **/ 6748static void 6749lpfc_reset_stats(struct Scsi_Host *shost) 6750{ 6751 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6752 struct lpfc_hba *phba = vport->phba; 6753 struct lpfc_sli *psli = &phba->sli; 6754 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6755 LPFC_MBOXQ_t *pmboxq; 6756 MAILBOX_t *pmb; 6757 int rc = 0; 6758 6759 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6760 return; 6761 6762 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6763 if (!pmboxq) 6764 return; 6765 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6766 6767 pmb = &pmboxq->u.mb; 6768 pmb->mbxCommand = MBX_READ_STATUS; 6769 pmb->mbxOwner = OWN_HOST; 6770 pmb->un.varWords[0] = 0x1; /* reset request */ 6771 pmboxq->ctx_buf = NULL; 6772 pmboxq->vport = vport; 6773 6774 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || 6775 !(psli->sli_flag & LPFC_SLI_ACTIVE)) { 6776 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6777 if (rc != MBX_SUCCESS) { 6778 mempool_free(pmboxq, phba->mbox_mem_pool); 6779 return; 6780 } 6781 } else { 6782 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6783 if (rc != MBX_SUCCESS) { 6784 if (rc != MBX_TIMEOUT) 6785 mempool_free(pmboxq, phba->mbox_mem_pool); 6786 return; 6787 } 6788 } 6789 6790 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6791 pmb->mbxCommand = MBX_READ_LNK_STAT; 6792 pmb->mbxOwner = OWN_HOST; 6793 pmboxq->ctx_buf = NULL; 6794 pmboxq->vport = vport; 6795 6796 if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || 6797 !(psli->sli_flag & LPFC_SLI_ACTIVE)) { 6798 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6799 if (rc != MBX_SUCCESS) { 6800 mempool_free(pmboxq, phba->mbox_mem_pool); 6801 return; 6802 } 6803 } else { 6804 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6805 if (rc != MBX_SUCCESS) { 6806 if (rc != MBX_TIMEOUT) 6807 mempool_free(pmboxq, phba->mbox_mem_pool); 6808 return; 6809 } 6810 } 6811 6812 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6813 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6814 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6815 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6816 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6817 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6818 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6819 if (phba->hba_flag & HBA_FCOE_MODE) 6820 lso->link_events = (phba->link_events >> 1); 6821 else 6822 lso->link_events = (phba->fc_eventTag >> 1); 6823 6824 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 6825 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 6826 6827 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 6828 sizeof(shost_to_fc_host(shost)->fpin_stats)); 6829 6830 psli->stats_start = ktime_get_seconds(); 6831 6832 mempool_free(pmboxq, phba->mbox_mem_pool); 6833 6834 return; 6835} 6836 6837/* 6838 * The LPFC driver treats linkdown handling as target loss events so there 6839 * are no sysfs handlers for link_down_tmo. 6840 */ 6841 6842/** 6843 * lpfc_get_node_by_target - Return the nodelist for a target 6844 * @starget: kernel scsi target pointer. 6845 * 6846 * Returns: 6847 * address of the node list if found 6848 * NULL target not found 6849 **/ 6850static struct lpfc_nodelist * 6851lpfc_get_node_by_target(struct scsi_target *starget) 6852{ 6853 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6854 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6855 struct lpfc_nodelist *ndlp; 6856 unsigned long iflags; 6857 6858 spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); 6859 /* Search for this, mapped, target ID */ 6860 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6861 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6862 starget->id == ndlp->nlp_sid) { 6863 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, 6864 iflags); 6865 return ndlp; 6866 } 6867 } 6868 spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); 6869 return NULL; 6870} 6871 6872/** 6873 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6874 * @starget: kernel scsi target pointer. 6875 **/ 6876static void 6877lpfc_get_starget_port_id(struct scsi_target *starget) 6878{ 6879 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6880 6881 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6882} 6883 6884/** 6885 * lpfc_get_starget_node_name - Set the target node name 6886 * @starget: kernel scsi target pointer. 6887 * 6888 * Description: Set the target node name to the ndlp node name wwn or zero. 6889 **/ 6890static void 6891lpfc_get_starget_node_name(struct scsi_target *starget) 6892{ 6893 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6894 6895 fc_starget_node_name(starget) = 6896 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6897} 6898 6899/** 6900 * lpfc_get_starget_port_name - Set the target port name 6901 * @starget: kernel scsi target pointer. 6902 * 6903 * Description: set the target port name to the ndlp port name wwn or zero. 6904 **/ 6905static void 6906lpfc_get_starget_port_name(struct scsi_target *starget) 6907{ 6908 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6909 6910 fc_starget_port_name(starget) = 6911 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6912} 6913 6914/** 6915 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6916 * @rport: fc rport address. 6917 * @timeout: new value for dev loss tmo. 6918 * 6919 * Description: 6920 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6921 * dev_loss_tmo to one. 6922 **/ 6923static void 6924lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6925{ 6926 struct lpfc_rport_data *rdata = rport->dd_data; 6927 struct lpfc_nodelist *ndlp = rdata->pnode; 6928#if (IS_ENABLED(CONFIG_NVME_FC)) 6929 struct lpfc_nvme_rport *nrport = NULL; 6930#endif 6931 6932 if (timeout) 6933 rport->dev_loss_tmo = timeout; 6934 else 6935 rport->dev_loss_tmo = 1; 6936 6937 if (!ndlp) { 6938 dev_info(&rport->dev, "Cannot find remote node to " 6939 "set rport dev loss tmo, port_id x%x\n", 6940 rport->port_id); 6941 return; 6942 } 6943 6944#if (IS_ENABLED(CONFIG_NVME_FC)) 6945 nrport = lpfc_ndlp_get_nrport(ndlp); 6946 6947 if (nrport && nrport->remoteport) 6948 nvme_fc_set_remoteport_devloss(nrport->remoteport, 6949 rport->dev_loss_tmo); 6950#endif 6951} 6952 6953/* 6954 * lpfc_rport_show_function - Return rport target information 6955 * 6956 * Description: 6957 * Macro that uses field to generate a function with the name lpfc_show_rport_ 6958 * 6959 * lpfc_show_rport_##field: returns the bytes formatted in buf 6960 * @cdev: class converted to an fc_rport. 6961 * @buf: on return contains the target_field or zero. 6962 * 6963 * Returns: size of formatted string. 6964 **/ 6965#define lpfc_rport_show_function(field, format_string, sz, cast) \ 6966static ssize_t \ 6967lpfc_show_rport_##field (struct device *dev, \ 6968 struct device_attribute *attr, \ 6969 char *buf) \ 6970{ \ 6971 struct fc_rport *rport = transport_class_to_rport(dev); \ 6972 struct lpfc_rport_data *rdata = rport->hostdata; \ 6973 return scnprintf(buf, sz, format_string, \ 6974 (rdata->target) ? cast rdata->target->field : 0); \ 6975} 6976 6977#define lpfc_rport_rd_attr(field, format_string, sz) \ 6978 lpfc_rport_show_function(field, format_string, sz, ) \ 6979static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6980 6981/** 6982 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 6983 * @fc_vport: The fc_vport who's symbolic name has been changed. 6984 * 6985 * Description: 6986 * This function is called by the transport after the @fc_vport's symbolic name 6987 * has been changed. This function re-registers the symbolic name with the 6988 * switch to propagate the change into the fabric if the vport is active. 6989 **/ 6990static void 6991lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 6992{ 6993 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 6994 6995 if (vport->port_state == LPFC_VPORT_READY) 6996 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 6997} 6998 6999/** 7000 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7001 * @phba: Pointer to lpfc_hba struct. 7002 * @verbose: Verbose level to set. 7003 * 7004 * This function is called by the lpfc_get_cfgparam() routine to set the 7005 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7006 * log message according to the module's lpfc_log_verbose parameter setting 7007 * before hba port or vport created. 7008 **/ 7009static void 7010lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7011{ 7012 phba->cfg_log_verbose = verbose; 7013} 7014 7015struct fc_function_template lpfc_transport_functions = { 7016 /* fixed attributes the driver supports */ 7017 .show_host_node_name = 1, 7018 .show_host_port_name = 1, 7019 .show_host_supported_classes = 1, 7020 .show_host_supported_fc4s = 1, 7021 .show_host_supported_speeds = 1, 7022 .show_host_maxframe_size = 1, 7023 7024 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7025 .show_host_symbolic_name = 1, 7026 7027 /* dynamic attributes the driver supports */ 7028 .get_host_port_id = lpfc_get_host_port_id, 7029 .show_host_port_id = 1, 7030 7031 .get_host_port_type = lpfc_get_host_port_type, 7032 .show_host_port_type = 1, 7033 7034 .get_host_port_state = lpfc_get_host_port_state, 7035 .show_host_port_state = 1, 7036 7037 /* active_fc4s is shown but doesn't change (thus no get function) */ 7038 .show_host_active_fc4s = 1, 7039 7040 .get_host_speed = lpfc_get_host_speed, 7041 .show_host_speed = 1, 7042 7043 .get_host_fabric_name = lpfc_get_host_fabric_name, 7044 .show_host_fabric_name = 1, 7045 7046 /* 7047 * The LPFC driver treats linkdown handling as target loss events 7048 * so there are no sysfs handlers for link_down_tmo. 7049 */ 7050 7051 .get_fc_host_stats = lpfc_get_stats, 7052 .reset_fc_host_stats = lpfc_reset_stats, 7053 7054 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7055 .show_rport_maxframe_size = 1, 7056 .show_rport_supported_classes = 1, 7057 7058 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7059 .show_rport_dev_loss_tmo = 1, 7060 7061 .get_starget_port_id = lpfc_get_starget_port_id, 7062 .show_starget_port_id = 1, 7063 7064 .get_starget_node_name = lpfc_get_starget_node_name, 7065 .show_starget_node_name = 1, 7066 7067 .get_starget_port_name = lpfc_get_starget_port_name, 7068 .show_starget_port_name = 1, 7069 7070 .issue_fc_host_lip = lpfc_issue_lip, 7071 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7072 .terminate_rport_io = lpfc_terminate_rport_io, 7073 7074 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7075 7076 .vport_disable = lpfc_vport_disable, 7077 7078 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7079 7080 .bsg_request = lpfc_bsg_request, 7081 .bsg_timeout = lpfc_bsg_timeout, 7082}; 7083 7084struct fc_function_template lpfc_vport_transport_functions = { 7085 /* fixed attributes the driver supports */ 7086 .show_host_node_name = 1, 7087 .show_host_port_name = 1, 7088 .show_host_supported_classes = 1, 7089 .show_host_supported_fc4s = 1, 7090 .show_host_supported_speeds = 1, 7091 .show_host_maxframe_size = 1, 7092 7093 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7094 .show_host_symbolic_name = 1, 7095 7096 /* dynamic attributes the driver supports */ 7097 .get_host_port_id = lpfc_get_host_port_id, 7098 .show_host_port_id = 1, 7099 7100 .get_host_port_type = lpfc_get_host_port_type, 7101 .show_host_port_type = 1, 7102 7103 .get_host_port_state = lpfc_get_host_port_state, 7104 .show_host_port_state = 1, 7105 7106 /* active_fc4s is shown but doesn't change (thus no get function) */ 7107 .show_host_active_fc4s = 1, 7108 7109 .get_host_speed = lpfc_get_host_speed, 7110 .show_host_speed = 1, 7111 7112 .get_host_fabric_name = lpfc_get_host_fabric_name, 7113 .show_host_fabric_name = 1, 7114 7115 /* 7116 * The LPFC driver treats linkdown handling as target loss events 7117 * so there are no sysfs handlers for link_down_tmo. 7118 */ 7119 7120 .get_fc_host_stats = lpfc_get_stats, 7121 .reset_fc_host_stats = lpfc_reset_stats, 7122 7123 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7124 .show_rport_maxframe_size = 1, 7125 .show_rport_supported_classes = 1, 7126 7127 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7128 .show_rport_dev_loss_tmo = 1, 7129 7130 .get_starget_port_id = lpfc_get_starget_port_id, 7131 .show_starget_port_id = 1, 7132 7133 .get_starget_node_name = lpfc_get_starget_node_name, 7134 .show_starget_node_name = 1, 7135 7136 .get_starget_port_name = lpfc_get_starget_port_name, 7137 .show_starget_port_name = 1, 7138 7139 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7140 .terminate_rport_io = lpfc_terminate_rport_io, 7141 7142 .vport_disable = lpfc_vport_disable, 7143 7144 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7145}; 7146 7147/** 7148 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7149 * Mode 7150 * @phba: lpfc_hba pointer. 7151 **/ 7152static void 7153lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7154{ 7155 /* If the adapter supports FCoE mode */ 7156 switch (phba->pcidev->device) { 7157 case PCI_DEVICE_ID_SKYHAWK: 7158 case PCI_DEVICE_ID_SKYHAWK_VF: 7159 case PCI_DEVICE_ID_LANCER_FCOE: 7160 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7161 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7162 case PCI_DEVICE_ID_TIGERSHARK: 7163 case PCI_DEVICE_ID_TOMCAT: 7164 phba->hba_flag |= HBA_FCOE_MODE; 7165 break; 7166 default: 7167 /* for others, clear the flag */ 7168 phba->hba_flag &= ~HBA_FCOE_MODE; 7169 } 7170} 7171 7172/** 7173 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7174 * @phba: lpfc_hba pointer. 7175 **/ 7176void 7177lpfc_get_cfgparam(struct lpfc_hba *phba) 7178{ 7179 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7180 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7181 lpfc_ns_query_init(phba, lpfc_ns_query); 7182 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7183 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7184 lpfc_cr_count_init(phba, lpfc_cr_count); 7185 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7186 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7187 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7188 lpfc_ack0_init(phba, lpfc_ack0); 7189 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7190 lpfc_topology_init(phba, lpfc_topology); 7191 lpfc_link_speed_init(phba, lpfc_link_speed); 7192 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7193 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7194 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7195 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7196 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7197 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7198 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7199 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7200 lpfc_use_msi_init(phba, lpfc_use_msi); 7201 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7202 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7203 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7204 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7205 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7206 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7207 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7208 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7209 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7210 7211 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7212 /* VMID Inits */ 7213 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7214 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7215 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7216 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7217 if (phba->sli_rev != LPFC_SLI_REV4) 7218 phba->cfg_EnableXLane = 0; 7219 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7220 7221 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7222 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7223 phba->cfg_oas_lun_state = 0; 7224 phba->cfg_oas_lun_status = 0; 7225 phba->cfg_oas_flags = 0; 7226 phba->cfg_oas_priority = 0; 7227 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7228 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7229 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7230 if (phba->sli_rev == LPFC_SLI_REV4) 7231 phba->cfg_poll = 0; 7232 else 7233 phba->cfg_poll = lpfc_poll; 7234 7235 /* Get the function mode */ 7236 lpfc_get_hba_function_mode(phba); 7237 7238 /* BlockGuard allowed for FC only. */ 7239 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7241 "0581 BlockGuard feature not supported\n"); 7242 /* If set, clear the BlockGuard support param */ 7243 phba->cfg_enable_bg = 0; 7244 } else if (phba->cfg_enable_bg) { 7245 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7246 } 7247 7248 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7249 7250 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7251 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7252 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7253 7254 /* Initialize first burst. Target vs Initiator are different. */ 7255 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7256 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7257 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7258 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7259 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7260 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7261 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7262 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7263 7264 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7265 phba->cmf_active_mode = LPFC_CFG_OFF; 7266 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7267 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7268 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7269 7270 if (phba->sli_rev != LPFC_SLI_REV4) { 7271 /* NVME only supported on SLI4 */ 7272 phba->nvmet_support = 0; 7273 phba->cfg_nvmet_mrq = 0; 7274 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7275 phba->cfg_enable_bbcr = 0; 7276 phba->cfg_xri_rebalancing = 0; 7277 } else { 7278 /* We MUST have FCP support */ 7279 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7280 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7281 } 7282 7283 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7284 7285 phba->cfg_enable_pbde = 0; 7286 7287 /* A value of 0 means use the number of CPUs found in the system */ 7288 if (phba->cfg_hdw_queue == 0) 7289 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7290 if (phba->cfg_irq_chann == 0) 7291 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7292 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7293 phba->sli_rev == LPFC_SLI_REV4) 7294 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7295 7296 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7297 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7298 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7299 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7300 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7301 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7302 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7303 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7304 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7305 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7306 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7307 7308 return; 7309} 7310 7311/** 7312 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7313 * dependencies between protocols and roles. 7314 * @phba: lpfc_hba pointer. 7315 **/ 7316void 7317lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7318{ 7319 int logit = 0; 7320 7321 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7322 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7323 logit = 1; 7324 } 7325 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7326 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7327 logit = 1; 7328 } 7329 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7330 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7331 logit = 1; 7332 } 7333 if (logit) 7334 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7335 "2006 Reducing Queues - CPU limitation: " 7336 "IRQ %d HDWQ %d\n", 7337 phba->cfg_irq_chann, 7338 phba->cfg_hdw_queue); 7339 7340 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7341 phba->nvmet_support) { 7342 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7343 7344 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7345 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7346 "NVME Target PRLI ACC enable_fb ", 7347 phba->cfg_nvme_enable_fb, 7348 phba->cfg_nvmet_fb_size, 7349 LPFC_NVMET_FB_SZ_MAX); 7350 7351 if (phba->cfg_nvme_enable_fb == 0) 7352 phba->cfg_nvmet_fb_size = 0; 7353 else { 7354 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7355 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7356 } 7357 7358 if (!phba->cfg_nvmet_mrq) 7359 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7360 7361 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7362 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7363 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7364 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7365 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7366 phba->cfg_nvmet_mrq); 7367 } 7368 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7369 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7370 7371 } else { 7372 /* Not NVME Target mode. Turn off Target parameters. */ 7373 phba->nvmet_support = 0; 7374 phba->cfg_nvmet_mrq = 0; 7375 phba->cfg_nvmet_fb_size = 0; 7376 } 7377} 7378 7379/** 7380 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7381 * @vport: lpfc_vport pointer. 7382 **/ 7383void 7384lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7385{ 7386 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7387 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7388 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7389 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7390 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7391 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7392 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7393 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7394 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7395 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7396 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7397 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7398 lpfc_max_luns_init(vport, lpfc_max_luns); 7399 lpfc_scan_down_init(vport, lpfc_scan_down); 7400 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7401 return; 7402} 7403