1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2023 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 char *statep; 348 int i; 349 int len = 0; 350 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 351 352 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 353 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 354 return len; 355 } 356 if (phba->nvmet_support) { 357 if (!phba->targetport) { 358 len = scnprintf(buf, PAGE_SIZE, 359 "NVME Target: x%llx is not allocated\n", 360 wwn_to_u64(vport->fc_portname.u.wwn)); 361 return len; 362 } 363 /* Port state is only one of two values for now. */ 364 if (phba->targetport->port_id) 365 statep = "REGISTERED"; 366 else 367 statep = "INIT"; 368 scnprintf(tmp, sizeof(tmp), 369 "NVME Target Enabled State %s\n", 370 statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 scnprintf(tmp, sizeof(tmp), 375 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 376 "NVME Target: lpfc", 377 phba->brd_no, 378 wwn_to_u64(vport->fc_portname.u.wwn), 379 wwn_to_u64(vport->fc_nodename.u.wwn), 380 phba->targetport->port_id); 381 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 382 goto buffer_done; 383 384 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 385 >= PAGE_SIZE) 386 goto buffer_done; 387 388 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 389 scnprintf(tmp, sizeof(tmp), 390 "LS: Rcv %08x Drop %08x Abort %08x\n", 391 atomic_read(&tgtp->rcv_ls_req_in), 392 atomic_read(&tgtp->rcv_ls_req_drop), 393 atomic_read(&tgtp->xmt_ls_abort)); 394 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 395 goto buffer_done; 396 397 if (atomic_read(&tgtp->rcv_ls_req_in) != 398 atomic_read(&tgtp->rcv_ls_req_out)) { 399 scnprintf(tmp, sizeof(tmp), 400 "Rcv LS: in %08x != out %08x\n", 401 atomic_read(&tgtp->rcv_ls_req_in), 402 atomic_read(&tgtp->rcv_ls_req_out)); 403 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 404 goto buffer_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), 408 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 409 atomic_read(&tgtp->xmt_ls_rsp), 410 atomic_read(&tgtp->xmt_ls_drop), 411 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto buffer_done; 414 415 scnprintf(tmp, sizeof(tmp), 416 "LS: RSP Abort %08x xb %08x Err %08x\n", 417 atomic_read(&tgtp->xmt_ls_rsp_aborted), 418 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 419 atomic_read(&tgtp->xmt_ls_rsp_error)); 420 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 421 goto buffer_done; 422 423 scnprintf(tmp, sizeof(tmp), 424 "FCP: Rcv %08x Defer %08x Release %08x " 425 "Drop %08x\n", 426 atomic_read(&tgtp->rcv_fcp_cmd_in), 427 atomic_read(&tgtp->rcv_fcp_cmd_defer), 428 atomic_read(&tgtp->xmt_fcp_release), 429 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 430 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 431 goto buffer_done; 432 433 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 434 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 435 scnprintf(tmp, sizeof(tmp), 436 "Rcv FCP: in %08x != out %08x\n", 437 atomic_read(&tgtp->rcv_fcp_cmd_in), 438 atomic_read(&tgtp->rcv_fcp_cmd_out)); 439 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 440 goto buffer_done; 441 } 442 443 scnprintf(tmp, sizeof(tmp), 444 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 445 "drop %08x\n", 446 atomic_read(&tgtp->xmt_fcp_read), 447 atomic_read(&tgtp->xmt_fcp_read_rsp), 448 atomic_read(&tgtp->xmt_fcp_write), 449 atomic_read(&tgtp->xmt_fcp_rsp), 450 atomic_read(&tgtp->xmt_fcp_drop)); 451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 452 goto buffer_done; 453 454 scnprintf(tmp, sizeof(tmp), 455 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 456 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 457 atomic_read(&tgtp->xmt_fcp_rsp_error), 458 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 459 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 460 goto buffer_done; 461 462 scnprintf(tmp, sizeof(tmp), 463 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 464 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 465 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 466 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 467 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 468 goto buffer_done; 469 470 scnprintf(tmp, sizeof(tmp), 471 "ABORT: Xmt %08x Cmpl %08x\n", 472 atomic_read(&tgtp->xmt_fcp_abort), 473 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 474 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 475 goto buffer_done; 476 477 scnprintf(tmp, sizeof(tmp), 478 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 479 atomic_read(&tgtp->xmt_abort_sol), 480 atomic_read(&tgtp->xmt_abort_unsol), 481 atomic_read(&tgtp->xmt_abort_rsp), 482 atomic_read(&tgtp->xmt_abort_rsp_error)); 483 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 484 goto buffer_done; 485 486 scnprintf(tmp, sizeof(tmp), 487 "DELAY: ctx %08x fod %08x wqfull %08x\n", 488 atomic_read(&tgtp->defer_ctx), 489 atomic_read(&tgtp->defer_fod), 490 atomic_read(&tgtp->defer_wqfull)); 491 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 492 goto buffer_done; 493 494 /* Calculate outstanding IOs */ 495 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 496 tot += atomic_read(&tgtp->xmt_fcp_release); 497 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 498 499 scnprintf(tmp, sizeof(tmp), 500 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 501 "CTX Outstanding %08llx\n\n", 502 phba->sli4_hba.nvmet_xri_cnt, 503 phba->sli4_hba.nvmet_io_wait_cnt, 504 phba->sli4_hba.nvmet_io_wait_total, 505 tot); 506 strlcat(buf, tmp, PAGE_SIZE); 507 goto buffer_done; 508 } 509 510 localport = vport->localport; 511 if (!localport) { 512 len = scnprintf(buf, PAGE_SIZE, 513 "NVME Initiator x%llx is not allocated\n", 514 wwn_to_u64(vport->fc_portname.u.wwn)); 515 return len; 516 } 517 lport = (struct lpfc_nvme_lport *)localport->private; 518 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 519 goto buffer_done; 520 521 scnprintf(tmp, sizeof(tmp), 522 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 523 phba->brd_no, 524 phba->sli4_hba.max_cfg_param.max_xri, 525 phba->sli4_hba.io_xri_max, 526 lpfc_sli4_get_els_iocb_cnt(phba)); 527 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 528 goto buffer_done; 529 530 /* Port state is only one of two values for now. */ 531 if (localport->port_id) 532 statep = "ONLINE"; 533 else 534 statep = "UNKNOWN "; 535 536 scnprintf(tmp, sizeof(tmp), 537 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 538 "NVME LPORT lpfc", 539 phba->brd_no, 540 wwn_to_u64(vport->fc_portname.u.wwn), 541 wwn_to_u64(vport->fc_nodename.u.wwn), 542 localport->port_id, statep); 543 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 544 goto buffer_done; 545 546 spin_lock_irq(shost->host_lock); 547 548 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 549 nrport = NULL; 550 spin_lock(&ndlp->lock); 551 rport = lpfc_ndlp_get_nrport(ndlp); 552 if (rport) 553 nrport = rport->remoteport; 554 spin_unlock(&ndlp->lock); 555 if (!nrport) 556 continue; 557 558 /* Port state is only one of two values for now. */ 559 switch (nrport->port_state) { 560 case FC_OBJSTATE_ONLINE: 561 statep = "ONLINE"; 562 break; 563 case FC_OBJSTATE_UNKNOWN: 564 statep = "UNKNOWN "; 565 break; 566 default: 567 statep = "UNSUPPORTED"; 568 break; 569 } 570 571 /* Tab in to show lport ownership. */ 572 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 573 goto unlock_buf_done; 574 if (phba->brd_no >= 10) { 575 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 576 goto unlock_buf_done; 577 } 578 579 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 580 nrport->port_name); 581 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 582 goto unlock_buf_done; 583 584 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 585 nrport->node_name); 586 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 587 goto unlock_buf_done; 588 589 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 590 nrport->port_id); 591 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 592 goto unlock_buf_done; 593 594 /* An NVME rport can have multiple roles. */ 595 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 596 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 597 goto unlock_buf_done; 598 } 599 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 600 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 601 goto unlock_buf_done; 602 } 603 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 604 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 605 goto unlock_buf_done; 606 } 607 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 608 FC_PORT_ROLE_NVME_TARGET | 609 FC_PORT_ROLE_NVME_DISCOVERY)) { 610 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 611 nrport->port_role); 612 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 613 goto unlock_buf_done; 614 } 615 616 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 617 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 618 goto unlock_buf_done; 619 } 620 spin_unlock_irq(shost->host_lock); 621 622 if (!lport) 623 goto buffer_done; 624 625 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 626 goto buffer_done; 627 628 scnprintf(tmp, sizeof(tmp), 629 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 630 atomic_read(&lport->fc4NvmeLsRequests), 631 atomic_read(&lport->fc4NvmeLsCmpls), 632 atomic_read(&lport->xmt_ls_abort)); 633 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 634 goto buffer_done; 635 636 scnprintf(tmp, sizeof(tmp), 637 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 638 atomic_read(&lport->xmt_ls_err), 639 atomic_read(&lport->cmpl_ls_xb), 640 atomic_read(&lport->cmpl_ls_err)); 641 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 642 goto buffer_done; 643 644 totin = 0; 645 totout = 0; 646 for (i = 0; i < phba->cfg_hdw_queue; i++) { 647 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 648 tot = cstat->io_cmpls; 649 totin += tot; 650 data1 = cstat->input_requests; 651 data2 = cstat->output_requests; 652 data3 = cstat->control_requests; 653 totout += (data1 + data2 + data3); 654 } 655 scnprintf(tmp, sizeof(tmp), 656 "Total FCP Cmpl %016llx Issue %016llx " 657 "OutIO %016llx\n", 658 totin, totout, totout - totin); 659 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 660 goto buffer_done; 661 662 scnprintf(tmp, sizeof(tmp), 663 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 664 "wqerr %08x err %08x\n", 665 atomic_read(&lport->xmt_fcp_abort), 666 atomic_read(&lport->xmt_fcp_noxri), 667 atomic_read(&lport->xmt_fcp_bad_ndlp), 668 atomic_read(&lport->xmt_fcp_qdepth), 669 atomic_read(&lport->xmt_fcp_wqerr), 670 atomic_read(&lport->xmt_fcp_err)); 671 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 672 goto buffer_done; 673 674 scnprintf(tmp, sizeof(tmp), 675 "FCP CMPL: xb %08x Err %08x\n", 676 atomic_read(&lport->cmpl_fcp_xb), 677 atomic_read(&lport->cmpl_fcp_err)); 678 strlcat(buf, tmp, PAGE_SIZE); 679 680 /* host_lock is already unlocked. */ 681 goto buffer_done; 682 683 unlock_buf_done: 684 spin_unlock_irq(shost->host_lock); 685 686 buffer_done: 687 len = strnlen(buf, PAGE_SIZE); 688 689 if (unlikely(len >= (PAGE_SIZE - 1))) { 690 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 691 "6314 Catching potential buffer " 692 "overflow > PAGE_SIZE = %lu bytes\n", 693 PAGE_SIZE); 694 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 695 LPFC_INFO_MORE_STR, 696 sizeof(LPFC_INFO_MORE_STR) + 1); 697 } 698 699 return len; 700} 701 702static ssize_t 703lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 704 char *buf) 705{ 706 struct Scsi_Host *shost = class_to_shost(dev); 707 struct lpfc_vport *vport = shost_priv(shost); 708 struct lpfc_hba *phba = vport->phba; 709 int len; 710 struct lpfc_fc4_ctrl_stat *cstat; 711 u64 data1, data2, data3; 712 u64 tot, totin, totout; 713 int i; 714 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 715 716 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 717 (phba->sli_rev != LPFC_SLI_REV4)) 718 return 0; 719 720 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 721 722 totin = 0; 723 totout = 0; 724 for (i = 0; i < phba->cfg_hdw_queue; i++) { 725 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 726 tot = cstat->io_cmpls; 727 totin += tot; 728 data1 = cstat->input_requests; 729 data2 = cstat->output_requests; 730 data3 = cstat->control_requests; 731 totout += (data1 + data2 + data3); 732 733 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 734 "IO %016llx ", i, data1, data2, data3); 735 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 736 goto buffer_done; 737 738 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 739 tot, ((data1 + data2 + data3) - tot)); 740 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 741 goto buffer_done; 742 } 743 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 744 "OutIO %016llx\n", totin, totout, totout - totin); 745 strlcat(buf, tmp, PAGE_SIZE); 746 747buffer_done: 748 len = strnlen(buf, PAGE_SIZE); 749 750 return len; 751} 752 753static ssize_t 754lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 755 char *buf) 756{ 757 struct Scsi_Host *shost = class_to_shost(dev); 758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 759 struct lpfc_hba *phba = vport->phba; 760 761 if (phba->cfg_enable_bg) { 762 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 763 return scnprintf(buf, PAGE_SIZE, 764 "BlockGuard Enabled\n"); 765 else 766 return scnprintf(buf, PAGE_SIZE, 767 "BlockGuard Not Supported\n"); 768 } else 769 return scnprintf(buf, PAGE_SIZE, 770 "BlockGuard Disabled\n"); 771} 772 773static ssize_t 774lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 775 char *buf) 776{ 777 struct Scsi_Host *shost = class_to_shost(dev); 778 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 779 struct lpfc_hba *phba = vport->phba; 780 781 return scnprintf(buf, PAGE_SIZE, "%llu\n", 782 (unsigned long long)phba->bg_guard_err_cnt); 783} 784 785static ssize_t 786lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 787 char *buf) 788{ 789 struct Scsi_Host *shost = class_to_shost(dev); 790 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 791 struct lpfc_hba *phba = vport->phba; 792 793 return scnprintf(buf, PAGE_SIZE, "%llu\n", 794 (unsigned long long)phba->bg_apptag_err_cnt); 795} 796 797static ssize_t 798lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 799 char *buf) 800{ 801 struct Scsi_Host *shost = class_to_shost(dev); 802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 803 struct lpfc_hba *phba = vport->phba; 804 805 return scnprintf(buf, PAGE_SIZE, "%llu\n", 806 (unsigned long long)phba->bg_reftag_err_cnt); 807} 808 809/** 810 * lpfc_info_show - Return some pci info about the host in ascii 811 * @dev: class converted to a Scsi_host structure. 812 * @attr: device attribute, not used. 813 * @buf: on return contains the formatted text from lpfc_info(). 814 * 815 * Returns: size of formatted string. 816 **/ 817static ssize_t 818lpfc_info_show(struct device *dev, struct device_attribute *attr, 819 char *buf) 820{ 821 struct Scsi_Host *host = class_to_shost(dev); 822 823 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 824} 825 826/** 827 * lpfc_serialnum_show - Return the hba serial number in ascii 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the formatted text serial number. 831 * 832 * Returns: size of formatted string. 833 **/ 834static ssize_t 835lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 836 char *buf) 837{ 838 struct Scsi_Host *shost = class_to_shost(dev); 839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 840 struct lpfc_hba *phba = vport->phba; 841 842 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 843} 844 845/** 846 * lpfc_temp_sensor_show - Return the temperature sensor level 847 * @dev: class converted to a Scsi_host structure. 848 * @attr: device attribute, not used. 849 * @buf: on return contains the formatted support level. 850 * 851 * Description: 852 * Returns a number indicating the temperature sensor level currently 853 * supported, zero or one in ascii. 854 * 855 * Returns: size of formatted string. 856 **/ 857static ssize_t 858lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 859 char *buf) 860{ 861 struct Scsi_Host *shost = class_to_shost(dev); 862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 863 struct lpfc_hba *phba = vport->phba; 864 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 865} 866 867/** 868 * lpfc_modeldesc_show - Return the model description of the hba 869 * @dev: class converted to a Scsi_host structure. 870 * @attr: device attribute, not used. 871 * @buf: on return contains the scsi vpd model description. 872 * 873 * Returns: size of formatted string. 874 **/ 875static ssize_t 876lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878{ 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 883 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 884} 885 886/** 887 * lpfc_modelname_show - Return the model name of the hba 888 * @dev: class converted to a Scsi_host structure. 889 * @attr: device attribute, not used. 890 * @buf: on return contains the scsi vpd model name. 891 * 892 * Returns: size of formatted string. 893 **/ 894static ssize_t 895lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 896 char *buf) 897{ 898 struct Scsi_Host *shost = class_to_shost(dev); 899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 900 struct lpfc_hba *phba = vport->phba; 901 902 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 903} 904 905/** 906 * lpfc_programtype_show - Return the program type of the hba 907 * @dev: class converted to a Scsi_host structure. 908 * @attr: device attribute, not used. 909 * @buf: on return contains the scsi vpd program type. 910 * 911 * Returns: size of formatted string. 912 **/ 913static ssize_t 914lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 915 char *buf) 916{ 917 struct Scsi_Host *shost = class_to_shost(dev); 918 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 919 struct lpfc_hba *phba = vport->phba; 920 921 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 922} 923 924/** 925 * lpfc_vportnum_show - Return the port number in ascii of the hba 926 * @dev: class converted to a Scsi_host structure. 927 * @attr: device attribute, not used. 928 * @buf: on return contains scsi vpd program type. 929 * 930 * Returns: size of formatted string. 931 **/ 932static ssize_t 933lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 934 char *buf) 935{ 936 struct Scsi_Host *shost = class_to_shost(dev); 937 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 938 struct lpfc_hba *phba = vport->phba; 939 940 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 941} 942 943/** 944 * lpfc_fwrev_show - Return the firmware rev running in the hba 945 * @dev: class converted to a Scsi_host structure. 946 * @attr: device attribute, not used. 947 * @buf: on return contains the scsi vpd program type. 948 * 949 * Returns: size of formatted string. 950 **/ 951static ssize_t 952lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 953 char *buf) 954{ 955 struct Scsi_Host *shost = class_to_shost(dev); 956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 957 struct lpfc_hba *phba = vport->phba; 958 uint32_t if_type; 959 uint8_t sli_family; 960 char fwrev[FW_REV_STR_SIZE]; 961 int len; 962 963 lpfc_decode_firmware_rev(phba, fwrev, 1); 964 if_type = phba->sli4_hba.pc_sli4_params.if_type; 965 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 966 967 if (phba->sli_rev < LPFC_SLI_REV4) 968 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 969 fwrev, phba->sli_rev); 970 else 971 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 972 fwrev, phba->sli_rev, if_type, sli_family); 973 974 return len; 975} 976 977/** 978 * lpfc_hdw_show - Return the jedec information about the hba 979 * @dev: class converted to a Scsi_host structure. 980 * @attr: device attribute, not used. 981 * @buf: on return contains the scsi vpd program type. 982 * 983 * Returns: size of formatted string. 984 **/ 985static ssize_t 986lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 987{ 988 char hdw[9]; 989 struct Scsi_Host *shost = class_to_shost(dev); 990 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 991 struct lpfc_hba *phba = vport->phba; 992 lpfc_vpd_t *vp = &phba->vpd; 993 994 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 995 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 996 vp->rev.smRev, vp->rev.smFwRev); 997} 998 999/** 1000 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 1001 * @dev: class converted to a Scsi_host structure. 1002 * @attr: device attribute, not used. 1003 * @buf: on return contains the ROM and FCode ascii strings. 1004 * 1005 * Returns: size of formatted string. 1006 **/ 1007static ssize_t 1008lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 1009 char *buf) 1010{ 1011 struct Scsi_Host *shost = class_to_shost(dev); 1012 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1013 struct lpfc_hba *phba = vport->phba; 1014 char fwrev[FW_REV_STR_SIZE]; 1015 1016 if (phba->sli_rev < LPFC_SLI_REV4) 1017 return scnprintf(buf, PAGE_SIZE, "%s\n", 1018 phba->OptionROMVersion); 1019 1020 lpfc_decode_firmware_rev(phba, fwrev, 1); 1021 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 1022} 1023 1024/** 1025 * lpfc_link_state_show - Return the link state of the port 1026 * @dev: class converted to a Scsi_host structure. 1027 * @attr: device attribute, not used. 1028 * @buf: on return contains text describing the state of the link. 1029 * 1030 * Notes: 1031 * The switch statement has no default so zero will be returned. 1032 * 1033 * Returns: size of formatted string. 1034 **/ 1035static ssize_t 1036lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 1037 char *buf) 1038{ 1039 struct Scsi_Host *shost = class_to_shost(dev); 1040 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1041 struct lpfc_hba *phba = vport->phba; 1042 int len = 0; 1043 1044 switch (phba->link_state) { 1045 case LPFC_LINK_UNKNOWN: 1046 case LPFC_WARM_START: 1047 case LPFC_INIT_START: 1048 case LPFC_INIT_MBX_CMDS: 1049 case LPFC_LINK_DOWN: 1050 case LPFC_HBA_ERROR: 1051 if (phba->hba_flag & LINK_DISABLED) 1052 len += scnprintf(buf + len, PAGE_SIZE-len, 1053 "Link Down - User disabled\n"); 1054 else 1055 len += scnprintf(buf + len, PAGE_SIZE-len, 1056 "Link Down\n"); 1057 break; 1058 case LPFC_LINK_UP: 1059 case LPFC_CLEAR_LA: 1060 case LPFC_HBA_READY: 1061 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 1062 1063 switch (vport->port_state) { 1064 case LPFC_LOCAL_CFG_LINK: 1065 len += scnprintf(buf + len, PAGE_SIZE-len, 1066 "Configuring Link\n"); 1067 break; 1068 case LPFC_FDISC: 1069 case LPFC_FLOGI: 1070 case LPFC_FABRIC_CFG_LINK: 1071 case LPFC_NS_REG: 1072 case LPFC_NS_QRY: 1073 case LPFC_BUILD_DISC_LIST: 1074 case LPFC_DISC_AUTH: 1075 len += scnprintf(buf + len, PAGE_SIZE - len, 1076 "Discovery\n"); 1077 break; 1078 case LPFC_VPORT_READY: 1079 len += scnprintf(buf + len, PAGE_SIZE - len, 1080 "Ready\n"); 1081 break; 1082 1083 case LPFC_VPORT_FAILED: 1084 len += scnprintf(buf + len, PAGE_SIZE - len, 1085 "Failed\n"); 1086 break; 1087 1088 case LPFC_VPORT_UNKNOWN: 1089 len += scnprintf(buf + len, PAGE_SIZE - len, 1090 "Unknown\n"); 1091 break; 1092 } 1093 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1094 if (vport->fc_flag & FC_PUBLIC_LOOP) 1095 len += scnprintf(buf + len, PAGE_SIZE-len, 1096 " Public Loop\n"); 1097 else 1098 len += scnprintf(buf + len, PAGE_SIZE-len, 1099 " Private Loop\n"); 1100 } else { 1101 if (vport->fc_flag & FC_FABRIC) { 1102 if (phba->sli_rev == LPFC_SLI_REV4 && 1103 vport->port_type == LPFC_PHYSICAL_PORT && 1104 phba->sli4_hba.fawwpn_flag & 1105 LPFC_FAWWPN_FABRIC) 1106 len += scnprintf(buf + len, 1107 PAGE_SIZE - len, 1108 " Fabric FA-PWWN\n"); 1109 else 1110 len += scnprintf(buf + len, 1111 PAGE_SIZE - len, 1112 " Fabric\n"); 1113 } else { 1114 len += scnprintf(buf + len, PAGE_SIZE-len, 1115 " Point-2-Point\n"); 1116 } 1117 } 1118 } 1119 1120 if ((phba->sli_rev == LPFC_SLI_REV4) && 1121 ((bf_get(lpfc_sli_intf_if_type, 1122 &phba->sli4_hba.sli_intf) == 1123 LPFC_SLI_INTF_IF_TYPE_6))) { 1124 struct lpfc_trunk_link link = phba->trunk_link; 1125 1126 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 1127 len += scnprintf(buf + len, PAGE_SIZE - len, 1128 "Trunk port 0: Link %s %s\n", 1129 (link.link0.state == LPFC_LINK_UP) ? 1130 "Up" : "Down. ", 1131 trunk_errmsg[link.link0.fault]); 1132 1133 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 1134 len += scnprintf(buf + len, PAGE_SIZE - len, 1135 "Trunk port 1: Link %s %s\n", 1136 (link.link1.state == LPFC_LINK_UP) ? 1137 "Up" : "Down. ", 1138 trunk_errmsg[link.link1.fault]); 1139 1140 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 1141 len += scnprintf(buf + len, PAGE_SIZE - len, 1142 "Trunk port 2: Link %s %s\n", 1143 (link.link2.state == LPFC_LINK_UP) ? 1144 "Up" : "Down. ", 1145 trunk_errmsg[link.link2.fault]); 1146 1147 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 1148 len += scnprintf(buf + len, PAGE_SIZE - len, 1149 "Trunk port 3: Link %s %s\n", 1150 (link.link3.state == LPFC_LINK_UP) ? 1151 "Up" : "Down. ", 1152 trunk_errmsg[link.link3.fault]); 1153 1154 } 1155 1156 return len; 1157} 1158 1159/** 1160 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1161 * @dev: class unused variable. 1162 * @attr: device attribute, not used. 1163 * @buf: on return contains the module description text. 1164 * 1165 * Returns: size of formatted string. 1166 **/ 1167static ssize_t 1168lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1169 char *buf) 1170{ 1171 struct Scsi_Host *shost = class_to_shost(dev); 1172 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1173 struct lpfc_hba *phba = vport->phba; 1174 1175 if (phba->sli_rev < LPFC_SLI_REV4) 1176 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1177 1178 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1179 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1180 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1181 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1182 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1183 } 1184 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1185} 1186 1187/** 1188 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1189 * (OAS) is supported. 1190 * @dev: class unused variable. 1191 * @attr: device attribute, not used. 1192 * @buf: on return contains the module description text. 1193 * 1194 * Returns: size of formatted string. 1195 **/ 1196static ssize_t 1197lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1198 char *buf) 1199{ 1200 struct Scsi_Host *shost = class_to_shost(dev); 1201 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1202 struct lpfc_hba *phba = vport->phba; 1203 1204 return scnprintf(buf, PAGE_SIZE, "%d\n", 1205 phba->sli4_hba.pc_sli4_params.oas_supported); 1206} 1207 1208/** 1209 * lpfc_link_state_store - Transition the link_state on an HBA port 1210 * @dev: class device that is converted into a Scsi_host. 1211 * @attr: device attribute, not used. 1212 * @buf: one or more lpfc_polling_flags values. 1213 * @count: not used. 1214 * 1215 * Returns: 1216 * -EINVAL if the buffer is not "up" or "down" 1217 * return from link state change function if non-zero 1218 * length of the buf on success 1219 **/ 1220static ssize_t 1221lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1222 const char *buf, size_t count) 1223{ 1224 struct Scsi_Host *shost = class_to_shost(dev); 1225 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1226 struct lpfc_hba *phba = vport->phba; 1227 1228 int status = -EINVAL; 1229 1230 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1231 (phba->link_state == LPFC_LINK_DOWN)) 1232 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1233 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1234 (phba->link_state >= LPFC_LINK_UP)) 1235 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1236 1237 if (status == 0) 1238 return strlen(buf); 1239 else 1240 return status; 1241} 1242 1243/** 1244 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1245 * @dev: class device that is converted into a Scsi_host. 1246 * @attr: device attribute, not used. 1247 * @buf: on return contains the sum of fc mapped and unmapped. 1248 * 1249 * Description: 1250 * Returns the ascii text number of the sum of the fc mapped and unmapped 1251 * vport counts. 1252 * 1253 * Returns: size of formatted string. 1254 **/ 1255static ssize_t 1256lpfc_num_discovered_ports_show(struct device *dev, 1257 struct device_attribute *attr, char *buf) 1258{ 1259 struct Scsi_Host *shost = class_to_shost(dev); 1260 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1261 1262 return scnprintf(buf, PAGE_SIZE, "%d\n", 1263 vport->fc_map_cnt + vport->fc_unmap_cnt); 1264} 1265 1266/** 1267 * lpfc_issue_lip - Misnomer, name carried over from long ago 1268 * @shost: Scsi_Host pointer. 1269 * 1270 * Description: 1271 * Bring the link down gracefully then re-init the link. The firmware will 1272 * re-init the fiber channel interface as required. Does not issue a LIP. 1273 * 1274 * Returns: 1275 * -EPERM port offline or management commands are being blocked 1276 * -ENOMEM cannot allocate memory for the mailbox command 1277 * -EIO error sending the mailbox command 1278 * zero for success 1279 **/ 1280static int 1281lpfc_issue_lip(struct Scsi_Host *shost) 1282{ 1283 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1284 struct lpfc_hba *phba = vport->phba; 1285 LPFC_MBOXQ_t *pmboxq; 1286 int mbxstatus = MBXERR_ERROR; 1287 1288 /* 1289 * If the link is offline, disabled or BLOCK_MGMT_IO 1290 * it doesn't make any sense to allow issue_lip 1291 */ 1292 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1293 (phba->hba_flag & LINK_DISABLED) || 1294 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1295 return -EPERM; 1296 1297 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1298 1299 if (!pmboxq) 1300 return -ENOMEM; 1301 1302 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1303 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1304 pmboxq->u.mb.mbxOwner = OWN_HOST; 1305 1306 if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME)) 1307 vport->fc_flag &= ~FC_PT2PT_NO_NVME; 1308 1309 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1310 1311 if ((mbxstatus == MBX_SUCCESS) && 1312 (pmboxq->u.mb.mbxStatus == 0 || 1313 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1314 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1315 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1316 phba->cfg_link_speed); 1317 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1318 phba->fc_ratov * 2); 1319 if ((mbxstatus == MBX_SUCCESS) && 1320 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1321 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1322 "2859 SLI authentication is required " 1323 "for INIT_LINK but has not done yet\n"); 1324 } 1325 1326 lpfc_set_loopback_flag(phba); 1327 if (mbxstatus != MBX_TIMEOUT) 1328 mempool_free(pmboxq, phba->mbox_mem_pool); 1329 1330 if (mbxstatus == MBXERR_ERROR) 1331 return -EIO; 1332 1333 return 0; 1334} 1335 1336int 1337lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1338{ 1339 int cnt = 0; 1340 1341 spin_lock_irq(lock); 1342 while (!list_empty(q)) { 1343 spin_unlock_irq(lock); 1344 msleep(20); 1345 if (cnt++ > 250) { /* 5 secs */ 1346 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1347 "0466 Outstanding IO when " 1348 "bringing Adapter offline\n"); 1349 return 0; 1350 } 1351 spin_lock_irq(lock); 1352 } 1353 spin_unlock_irq(lock); 1354 return 1; 1355} 1356 1357/** 1358 * lpfc_do_offline - Issues a mailbox command to bring the link down 1359 * @phba: lpfc_hba pointer. 1360 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1361 * 1362 * Notes: 1363 * Assumes any error from lpfc_do_offline() will be negative. 1364 * Can wait up to 5 seconds for the port ring buffers count 1365 * to reach zero, prints a warning if it is not zero and continues. 1366 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1367 * 1368 * Returns: 1369 * -EIO error posting the event 1370 * zero for success 1371 **/ 1372static int 1373lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1374{ 1375 struct completion online_compl; 1376 struct lpfc_queue *qp = NULL; 1377 struct lpfc_sli_ring *pring; 1378 struct lpfc_sli *psli; 1379 int status = 0; 1380 int i; 1381 int rc; 1382 1383 init_completion(&online_compl); 1384 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1385 LPFC_EVT_OFFLINE_PREP); 1386 if (rc == 0) 1387 return -ENOMEM; 1388 1389 wait_for_completion(&online_compl); 1390 1391 if (status != 0) 1392 return -EIO; 1393 1394 psli = &phba->sli; 1395 1396 /* 1397 * If freeing the queues have already started, don't access them. 1398 * Otherwise set FREE_WAIT to indicate that queues are being used 1399 * to hold the freeing process until we finish. 1400 */ 1401 spin_lock_irq(&phba->hbalock); 1402 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1403 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1404 } else { 1405 spin_unlock_irq(&phba->hbalock); 1406 goto skip_wait; 1407 } 1408 spin_unlock_irq(&phba->hbalock); 1409 1410 /* Wait a little for things to settle down, but not 1411 * long enough for dev loss timeout to expire. 1412 */ 1413 if (phba->sli_rev != LPFC_SLI_REV4) { 1414 for (i = 0; i < psli->num_rings; i++) { 1415 pring = &psli->sli3_ring[i]; 1416 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1417 &phba->hbalock)) 1418 goto out; 1419 } 1420 } else { 1421 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1422 pring = qp->pring; 1423 if (!pring) 1424 continue; 1425 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1426 &pring->ring_lock)) 1427 goto out; 1428 } 1429 } 1430out: 1431 spin_lock_irq(&phba->hbalock); 1432 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1433 spin_unlock_irq(&phba->hbalock); 1434 1435skip_wait: 1436 init_completion(&online_compl); 1437 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1438 if (rc == 0) 1439 return -ENOMEM; 1440 1441 wait_for_completion(&online_compl); 1442 1443 if (status != 0) 1444 return -EIO; 1445 1446 return 0; 1447} 1448 1449/** 1450 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1451 * @phba: lpfc_hba pointer. 1452 * 1453 * Description: 1454 * Issues a PCI secondary bus reset for the phba->pcidev. 1455 * 1456 * Notes: 1457 * First walks the bus_list to ensure only PCI devices with Emulex 1458 * vendor id, device ids that support hot reset, only one occurrence 1459 * of function 0, and all ports on the bus are in offline mode to ensure the 1460 * hot reset only affects one valid HBA. 1461 * 1462 * Returns: 1463 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1464 * -ENODEV, NULL ptr to pcidev 1465 * -EBADSLT, detected invalid device 1466 * -EBUSY, port is not in offline state 1467 * 0, successful 1468 */ 1469static int 1470lpfc_reset_pci_bus(struct lpfc_hba *phba) 1471{ 1472 struct pci_dev *pdev = phba->pcidev; 1473 struct Scsi_Host *shost = NULL; 1474 struct lpfc_hba *phba_other = NULL; 1475 struct pci_dev *ptr = NULL; 1476 int res; 1477 1478 if (phba->cfg_enable_hba_reset != 2) 1479 return -ENOTSUPP; 1480 1481 if (!pdev) { 1482 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1483 return -ENODEV; 1484 } 1485 1486 res = lpfc_check_pci_resettable(phba); 1487 if (res) 1488 return res; 1489 1490 /* Walk the list of devices on the pci_dev's bus */ 1491 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1492 /* Check port is offline */ 1493 shost = pci_get_drvdata(ptr); 1494 if (shost) { 1495 phba_other = 1496 ((struct lpfc_vport *)shost->hostdata)->phba; 1497 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1498 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1499 "8349 WWPN = 0x%02x%02x%02x%02x" 1500 "%02x%02x%02x%02x is not " 1501 "offline!\n", 1502 phba_other->wwpn[0], 1503 phba_other->wwpn[1], 1504 phba_other->wwpn[2], 1505 phba_other->wwpn[3], 1506 phba_other->wwpn[4], 1507 phba_other->wwpn[5], 1508 phba_other->wwpn[6], 1509 phba_other->wwpn[7]); 1510 return -EBUSY; 1511 } 1512 } 1513 } 1514 1515 /* Issue PCI bus reset */ 1516 res = pci_reset_bus(pdev); 1517 if (res) { 1518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1519 "8350 PCI reset bus failed: %d\n", res); 1520 } 1521 1522 return res; 1523} 1524 1525/** 1526 * lpfc_selective_reset - Offline then onlines the port 1527 * @phba: lpfc_hba pointer. 1528 * 1529 * Description: 1530 * If the port is configured to allow a reset then the hba is brought 1531 * offline then online. 1532 * 1533 * Notes: 1534 * Assumes any error from lpfc_do_offline() will be negative. 1535 * Do not make this function static. 1536 * 1537 * Returns: 1538 * lpfc_do_offline() return code if not zero 1539 * -EIO reset not configured or error posting the event 1540 * zero for success 1541 **/ 1542int 1543lpfc_selective_reset(struct lpfc_hba *phba) 1544{ 1545 struct completion online_compl; 1546 int status = 0; 1547 int rc; 1548 1549 if (!phba->cfg_enable_hba_reset) 1550 return -EACCES; 1551 1552 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1553 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1554 1555 if (status != 0) 1556 return status; 1557 } 1558 1559 init_completion(&online_compl); 1560 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1561 LPFC_EVT_ONLINE); 1562 if (rc == 0) 1563 return -ENOMEM; 1564 1565 wait_for_completion(&online_compl); 1566 1567 if (status != 0) 1568 return -EIO; 1569 1570 return 0; 1571} 1572 1573/** 1574 * lpfc_issue_reset - Selectively resets an adapter 1575 * @dev: class device that is converted into a Scsi_host. 1576 * @attr: device attribute, not used. 1577 * @buf: containing the string "selective". 1578 * @count: unused variable. 1579 * 1580 * Description: 1581 * If the buf contains the string "selective" then lpfc_selective_reset() 1582 * is called to perform the reset. 1583 * 1584 * Notes: 1585 * Assumes any error from lpfc_selective_reset() will be negative. 1586 * If lpfc_selective_reset() returns zero then the length of the buffer 1587 * is returned which indicates success 1588 * 1589 * Returns: 1590 * -EINVAL if the buffer does not contain the string "selective" 1591 * length of buf if lpfc-selective_reset() if the call succeeds 1592 * return value of lpfc_selective_reset() if the call fails 1593**/ 1594static ssize_t 1595lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1596 const char *buf, size_t count) 1597{ 1598 struct Scsi_Host *shost = class_to_shost(dev); 1599 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1600 struct lpfc_hba *phba = vport->phba; 1601 int status = -EINVAL; 1602 1603 if (!phba->cfg_enable_hba_reset) 1604 return -EACCES; 1605 1606 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1607 status = phba->lpfc_selective_reset(phba); 1608 1609 if (status == 0) 1610 return strlen(buf); 1611 else 1612 return status; 1613} 1614 1615/** 1616 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1617 * @phba: lpfc_hba pointer. 1618 * 1619 * Description: 1620 * SLI4 interface type-2 device to wait on the sliport status register for 1621 * the readyness after performing a firmware reset. 1622 * 1623 * Returns: 1624 * zero for success, -EPERM when port does not have privilege to perform the 1625 * reset, -EIO when port timeout from recovering from the reset. 1626 * 1627 * Note: 1628 * As the caller will interpret the return code by value, be careful in making 1629 * change or addition to return codes. 1630 **/ 1631int 1632lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1633{ 1634 struct lpfc_register portstat_reg = {0}; 1635 int i; 1636 1637 msleep(100); 1638 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1639 &portstat_reg.word0)) 1640 return -EIO; 1641 1642 /* verify if privileged for the request operation */ 1643 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1644 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1645 return -EPERM; 1646 1647 /* There is no point to wait if the port is in an unrecoverable 1648 * state. 1649 */ 1650 if (lpfc_sli4_unrecoverable_port(&portstat_reg)) 1651 return -EIO; 1652 1653 /* wait for the SLI port firmware ready after firmware reset */ 1654 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1655 msleep(10); 1656 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1657 &portstat_reg.word0)) 1658 continue; 1659 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1660 continue; 1661 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1662 continue; 1663 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1664 continue; 1665 break; 1666 } 1667 1668 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1669 return 0; 1670 else 1671 return -EIO; 1672} 1673 1674/** 1675 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1676 * @phba: lpfc_hba pointer. 1677 * @opcode: The sli4 config command opcode. 1678 * 1679 * Description: 1680 * Request SLI4 interface type-2 device to perform a physical register set 1681 * access. 1682 * 1683 * Returns: 1684 * zero for success 1685 **/ 1686static ssize_t 1687lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1688{ 1689 struct completion online_compl; 1690 struct pci_dev *pdev = phba->pcidev; 1691 uint32_t before_fc_flag; 1692 uint32_t sriov_nr_virtfn; 1693 uint32_t reg_val; 1694 int status = 0, rc = 0; 1695 int job_posted = 1, sriov_err; 1696 1697 if (!phba->cfg_enable_hba_reset) 1698 return -EACCES; 1699 1700 if ((phba->sli_rev < LPFC_SLI_REV4) || 1701 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1702 LPFC_SLI_INTF_IF_TYPE_2)) 1703 return -EPERM; 1704 1705 /* Keep state if we need to restore back */ 1706 before_fc_flag = phba->pport->fc_flag; 1707 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1708 1709 if (opcode == LPFC_FW_DUMP) { 1710 init_completion(&online_compl); 1711 phba->fw_dump_cmpl = &online_compl; 1712 } else { 1713 /* Disable SR-IOV virtual functions if enabled */ 1714 if (phba->cfg_sriov_nr_virtfn) { 1715 pci_disable_sriov(pdev); 1716 phba->cfg_sriov_nr_virtfn = 0; 1717 } 1718 1719 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1720 1721 if (status != 0) 1722 return status; 1723 1724 /* wait for the device to be quiesced before firmware reset */ 1725 msleep(100); 1726 } 1727 1728 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1729 LPFC_CTL_PDEV_CTL_OFFSET); 1730 1731 if (opcode == LPFC_FW_DUMP) 1732 reg_val |= LPFC_FW_DUMP_REQUEST; 1733 else if (opcode == LPFC_FW_RESET) 1734 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1735 else if (opcode == LPFC_DV_RESET) 1736 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1737 1738 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1739 LPFC_CTL_PDEV_CTL_OFFSET); 1740 /* flush */ 1741 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1742 1743 /* delay driver action following IF_TYPE_2 reset */ 1744 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1745 1746 if (rc == -EPERM) { 1747 /* no privilege for reset */ 1748 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1749 "3150 No privilege to perform the requested " 1750 "access: x%x\n", reg_val); 1751 } else if (rc == -EIO) { 1752 /* reset failed, there is nothing more we can do */ 1753 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1754 "3153 Fail to perform the requested " 1755 "access: x%x\n", reg_val); 1756 if (phba->fw_dump_cmpl) 1757 phba->fw_dump_cmpl = NULL; 1758 return rc; 1759 } 1760 1761 /* keep the original port state */ 1762 if (before_fc_flag & FC_OFFLINE_MODE) { 1763 if (phba->fw_dump_cmpl) 1764 phba->fw_dump_cmpl = NULL; 1765 goto out; 1766 } 1767 1768 /* Firmware dump will trigger an HA_ERATT event, and 1769 * lpfc_handle_eratt_s4 routine already handles bringing the port back 1770 * online. 1771 */ 1772 if (opcode == LPFC_FW_DUMP) { 1773 wait_for_completion(phba->fw_dump_cmpl); 1774 } else { 1775 init_completion(&online_compl); 1776 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1777 LPFC_EVT_ONLINE); 1778 if (!job_posted) 1779 goto out; 1780 1781 wait_for_completion(&online_compl); 1782 } 1783out: 1784 /* in any case, restore the virtual functions enabled as before */ 1785 if (sriov_nr_virtfn) { 1786 /* If fw_dump was performed, first disable to clean up */ 1787 if (opcode == LPFC_FW_DUMP) { 1788 pci_disable_sriov(pdev); 1789 phba->cfg_sriov_nr_virtfn = 0; 1790 } 1791 1792 sriov_err = 1793 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1794 if (!sriov_err) 1795 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1796 } 1797 1798 /* return proper error code */ 1799 if (!rc) { 1800 if (!job_posted) 1801 rc = -ENOMEM; 1802 else if (status) 1803 rc = -EIO; 1804 } 1805 return rc; 1806} 1807 1808/** 1809 * lpfc_nport_evt_cnt_show - Return the number of nport events 1810 * @dev: class device that is converted into a Scsi_host. 1811 * @attr: device attribute, not used. 1812 * @buf: on return contains the ascii number of nport events. 1813 * 1814 * Returns: size of formatted string. 1815 **/ 1816static ssize_t 1817lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1818 char *buf) 1819{ 1820 struct Scsi_Host *shost = class_to_shost(dev); 1821 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1822 struct lpfc_hba *phba = vport->phba; 1823 1824 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1825} 1826 1827static int 1828lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1829{ 1830 LPFC_MBOXQ_t *mbox = NULL; 1831 unsigned long val = 0; 1832 char *pval = NULL; 1833 int rc = 0; 1834 1835 if (!strncmp("enable", buff_out, 1836 strlen("enable"))) { 1837 pval = buff_out + strlen("enable") + 1; 1838 rc = kstrtoul(pval, 0, &val); 1839 if (rc) 1840 return rc; /* Invalid number */ 1841 } else if (!strncmp("disable", buff_out, 1842 strlen("disable"))) { 1843 val = 0; 1844 } else { 1845 return -EINVAL; /* Invalid command */ 1846 } 1847 1848 switch (val) { 1849 case 0: 1850 val = 0x0; /* Disable */ 1851 break; 1852 case 2: 1853 val = 0x1; /* Enable two port trunk */ 1854 break; 1855 case 4: 1856 val = 0x2; /* Enable four port trunk */ 1857 break; 1858 default: 1859 return -EINVAL; 1860 } 1861 1862 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1863 "0070 Set trunk mode with val %ld ", val); 1864 1865 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1866 if (!mbox) 1867 return -ENOMEM; 1868 1869 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1870 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1871 12, LPFC_SLI4_MBX_EMBED); 1872 1873 bf_set(lpfc_mbx_set_trunk_mode, 1874 &mbox->u.mqe.un.set_trunk_mode, 1875 val); 1876 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1877 if (rc) 1878 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1879 "0071 Set trunk mode failed with status: %d", 1880 rc); 1881 mempool_free(mbox, phba->mbox_mem_pool); 1882 1883 return 0; 1884} 1885 1886static ssize_t 1887lpfc_xcvr_data_show(struct device *dev, struct device_attribute *attr, 1888 char *buf) 1889{ 1890 struct Scsi_Host *shost = class_to_shost(dev); 1891 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1892 struct lpfc_hba *phba = vport->phba; 1893 int rc; 1894 int len = 0; 1895 struct lpfc_rdp_context *rdp_context; 1896 u16 temperature; 1897 u16 rx_power; 1898 u16 tx_bias; 1899 u16 tx_power; 1900 u16 vcc; 1901 char chbuf[128]; 1902 u16 wavelength = 0; 1903 struct sff_trasnceiver_codes_byte7 *trasn_code_byte7; 1904 1905 /* Get transceiver information */ 1906 rdp_context = kmalloc(sizeof(*rdp_context), GFP_KERNEL); 1907 1908 rc = lpfc_get_sfp_info_wait(phba, rdp_context); 1909 if (rc) { 1910 len = scnprintf(buf, PAGE_SIZE - len, "SFP info NA:\n"); 1911 goto out_free_rdp; 1912 } 1913 1914 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16); 1915 1916 len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf); 1917 len += scnprintf(buf + len, PAGE_SIZE - len, 1918 "VendorOUI:\t%02x-%02x-%02x\n", 1919 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI], 1920 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1], 1921 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]); 1922 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16); 1923 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf); 1924 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16); 1925 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf); 1926 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4); 1927 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf); 1928 strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8); 1929 len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf); 1930 len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n", 1931 (uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]); 1932 len += scnprintf(buf + len, PAGE_SIZE - len, "ExtIdentifier:\t%xh\n", 1933 (uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]); 1934 len += scnprintf(buf + len, PAGE_SIZE - len, "Connector:\t%xh\n", 1935 (uint8_t)rdp_context->page_a0[SSF_CONNECTOR]); 1936 wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) | 1937 rdp_context->page_a0[SSF_WAVELENGTH_B0]; 1938 1939 len += scnprintf(buf + len, PAGE_SIZE - len, "Wavelength:\t%d nm\n", 1940 wavelength); 1941 trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *) 1942 &rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7]; 1943 1944 len += scnprintf(buf + len, PAGE_SIZE - len, "Speeds: \t"); 1945 if (*(uint8_t *)trasn_code_byte7 == 0) { 1946 len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); 1947 } else { 1948 if (trasn_code_byte7->fc_sp_100MB) 1949 len += scnprintf(buf + len, PAGE_SIZE - len, "1 "); 1950 if (trasn_code_byte7->fc_sp_200mb) 1951 len += scnprintf(buf + len, PAGE_SIZE - len, "2 "); 1952 if (trasn_code_byte7->fc_sp_400MB) 1953 len += scnprintf(buf + len, PAGE_SIZE - len, "4 "); 1954 if (trasn_code_byte7->fc_sp_800MB) 1955 len += scnprintf(buf + len, PAGE_SIZE - len, "8 "); 1956 if (trasn_code_byte7->fc_sp_1600MB) 1957 len += scnprintf(buf + len, PAGE_SIZE - len, "16 "); 1958 if (trasn_code_byte7->fc_sp_3200MB) 1959 len += scnprintf(buf + len, PAGE_SIZE - len, "32 "); 1960 if (trasn_code_byte7->speed_chk_ecc) 1961 len += scnprintf(buf + len, PAGE_SIZE - len, "64 "); 1962 len += scnprintf(buf + len, PAGE_SIZE - len, "GB\n"); 1963 } 1964 temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 | 1965 rdp_context->page_a2[SFF_TEMPERATURE_B0]); 1966 vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 | 1967 rdp_context->page_a2[SFF_VCC_B0]); 1968 tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 | 1969 rdp_context->page_a2[SFF_TXPOWER_B0]); 1970 tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 1971 rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]); 1972 rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 | 1973 rdp_context->page_a2[SFF_RXPOWER_B0]); 1974 1975 len += scnprintf(buf + len, PAGE_SIZE - len, 1976 "Temperature:\tx%04x C\n", temperature); 1977 len += scnprintf(buf + len, PAGE_SIZE - len, "Vcc:\t\tx%04x V\n", vcc); 1978 len += scnprintf(buf + len, PAGE_SIZE - len, 1979 "TxBiasCurrent:\tx%04x mA\n", tx_bias); 1980 len += scnprintf(buf + len, PAGE_SIZE - len, "TxPower:\tx%04x mW\n", 1981 tx_power); 1982 len += scnprintf(buf + len, PAGE_SIZE - len, "RxPower:\tx%04x mW\n", 1983 rx_power); 1984out_free_rdp: 1985 kfree(rdp_context); 1986 return len; 1987} 1988 1989/** 1990 * lpfc_board_mode_show - Return the state of the board 1991 * @dev: class device that is converted into a Scsi_host. 1992 * @attr: device attribute, not used. 1993 * @buf: on return contains the state of the adapter. 1994 * 1995 * Returns: size of formatted string. 1996 **/ 1997static ssize_t 1998lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1999 char *buf) 2000{ 2001 struct Scsi_Host *shost = class_to_shost(dev); 2002 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2003 struct lpfc_hba *phba = vport->phba; 2004 char * state; 2005 2006 if (phba->link_state == LPFC_HBA_ERROR) 2007 state = "error"; 2008 else if (phba->link_state == LPFC_WARM_START) 2009 state = "warm start"; 2010 else if (phba->link_state == LPFC_INIT_START) 2011 state = "offline"; 2012 else 2013 state = "online"; 2014 2015 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 2016} 2017 2018/** 2019 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 2020 * @dev: class device that is converted into a Scsi_host. 2021 * @attr: device attribute, not used. 2022 * @buf: containing one of the strings "online", "offline", "warm" or "error". 2023 * @count: unused variable. 2024 * 2025 * Returns: 2026 * -EACCES if enable hba reset not enabled 2027 * -EINVAL if the buffer does not contain a valid string (see above) 2028 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 2029 * buf length greater than zero indicates success 2030 **/ 2031static ssize_t 2032lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 2033 const char *buf, size_t count) 2034{ 2035 struct Scsi_Host *shost = class_to_shost(dev); 2036 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2037 struct lpfc_hba *phba = vport->phba; 2038 struct completion online_compl; 2039 char *board_mode_str = NULL; 2040 int status = 0; 2041 int rc; 2042 2043 if (!phba->cfg_enable_hba_reset) { 2044 status = -EACCES; 2045 goto board_mode_out; 2046 } 2047 2048 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2049 "3050 lpfc_board_mode set to %s\n", buf); 2050 2051 init_completion(&online_compl); 2052 2053 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 2054 rc = lpfc_workq_post_event(phba, &status, &online_compl, 2055 LPFC_EVT_ONLINE); 2056 if (rc == 0) { 2057 status = -ENOMEM; 2058 goto board_mode_out; 2059 } 2060 wait_for_completion(&online_compl); 2061 if (status) 2062 status = -EIO; 2063 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 2064 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2065 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 2066 if (phba->sli_rev == LPFC_SLI_REV4) 2067 status = -EINVAL; 2068 else 2069 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 2070 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 2071 if (phba->sli_rev == LPFC_SLI_REV4) 2072 status = -EINVAL; 2073 else 2074 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 2075 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 2076 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 2077 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 2078 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 2079 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 2080 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 2081 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 2082 == 0) 2083 status = lpfc_reset_pci_bus(phba); 2084 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 2085 lpfc_issue_hb_tmo(phba); 2086 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 2087 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 2088 else 2089 status = -EINVAL; 2090 2091board_mode_out: 2092 if (!status) 2093 return strlen(buf); 2094 else { 2095 board_mode_str = strchr(buf, '\n'); 2096 if (board_mode_str) 2097 *board_mode_str = '\0'; 2098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2099 "3097 Failed \"%s\", status(%d), " 2100 "fc_flag(x%x)\n", 2101 buf, status, phba->pport->fc_flag); 2102 return status; 2103 } 2104} 2105 2106/** 2107 * lpfc_get_hba_info - Return various bits of informaton about the adapter 2108 * @phba: pointer to the adapter structure. 2109 * @mxri: max xri count. 2110 * @axri: available xri count. 2111 * @mrpi: max rpi count. 2112 * @arpi: available rpi count. 2113 * @mvpi: max vpi count. 2114 * @avpi: available vpi count. 2115 * 2116 * Description: 2117 * If an integer pointer for an count is not null then the value for the 2118 * count is returned. 2119 * 2120 * Returns: 2121 * zero on error 2122 * one for success 2123 **/ 2124static int 2125lpfc_get_hba_info(struct lpfc_hba *phba, 2126 uint32_t *mxri, uint32_t *axri, 2127 uint32_t *mrpi, uint32_t *arpi, 2128 uint32_t *mvpi, uint32_t *avpi) 2129{ 2130 LPFC_MBOXQ_t *pmboxq; 2131 MAILBOX_t *pmb; 2132 int rc = 0; 2133 struct lpfc_sli4_hba *sli4_hba; 2134 struct lpfc_max_cfg_param *max_cfg_param; 2135 u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi; 2136 2137 /* 2138 * prevent udev from issuing mailbox commands until the port is 2139 * configured. 2140 */ 2141 if (phba->link_state < LPFC_LINK_DOWN || 2142 !phba->mbox_mem_pool || 2143 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2144 return 0; 2145 2146 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2147 return 0; 2148 2149 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2150 if (!pmboxq) 2151 return 0; 2152 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2153 2154 pmb = &pmboxq->u.mb; 2155 pmb->mbxCommand = MBX_READ_CONFIG; 2156 pmb->mbxOwner = OWN_HOST; 2157 pmboxq->ctx_buf = NULL; 2158 2159 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2160 rc = MBX_NOT_FINISHED; 2161 else 2162 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2163 2164 if (rc != MBX_SUCCESS) { 2165 if (rc != MBX_TIMEOUT) 2166 mempool_free(pmboxq, phba->mbox_mem_pool); 2167 return 0; 2168 } 2169 2170 if (phba->sli_rev == LPFC_SLI_REV4) { 2171 sli4_hba = &phba->sli4_hba; 2172 max_cfg_param = &sli4_hba->max_cfg_param; 2173 2174 /* Normally, extents are not used */ 2175 if (!phba->sli4_hba.extents_in_use) { 2176 if (mrpi) 2177 *mrpi = max_cfg_param->max_rpi; 2178 if (mxri) 2179 *mxri = max_cfg_param->max_xri; 2180 if (mvpi) { 2181 max_vpi = max_cfg_param->max_vpi; 2182 2183 /* Limit the max we support */ 2184 if (max_vpi > LPFC_MAX_VPI) 2185 max_vpi = LPFC_MAX_VPI; 2186 *mvpi = max_vpi; 2187 } 2188 } else { /* Extents in use */ 2189 if (mrpi) { 2190 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2191 LPFC_RSC_TYPE_FCOE_RPI, 2192 &rsrc_ext_cnt, 2193 &rsrc_ext_size)) { 2194 rc = 0; 2195 goto free_pmboxq; 2196 } 2197 2198 *mrpi = rsrc_ext_cnt * rsrc_ext_size; 2199 } 2200 2201 if (mxri) { 2202 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2203 LPFC_RSC_TYPE_FCOE_XRI, 2204 &rsrc_ext_cnt, 2205 &rsrc_ext_size)) { 2206 rc = 0; 2207 goto free_pmboxq; 2208 } 2209 2210 *mxri = rsrc_ext_cnt * rsrc_ext_size; 2211 } 2212 2213 if (mvpi) { 2214 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2215 LPFC_RSC_TYPE_FCOE_VPI, 2216 &rsrc_ext_cnt, 2217 &rsrc_ext_size)) { 2218 rc = 0; 2219 goto free_pmboxq; 2220 } 2221 2222 max_vpi = rsrc_ext_cnt * rsrc_ext_size; 2223 2224 /* Limit the max we support */ 2225 if (max_vpi > LPFC_MAX_VPI) 2226 max_vpi = LPFC_MAX_VPI; 2227 *mvpi = max_vpi; 2228 } 2229 } 2230 } else { 2231 if (mrpi) 2232 *mrpi = pmb->un.varRdConfig.max_rpi; 2233 if (arpi) 2234 *arpi = pmb->un.varRdConfig.avail_rpi; 2235 if (mxri) 2236 *mxri = pmb->un.varRdConfig.max_xri; 2237 if (axri) 2238 *axri = pmb->un.varRdConfig.avail_xri; 2239 if (mvpi) 2240 *mvpi = pmb->un.varRdConfig.max_vpi; 2241 if (avpi) { 2242 /* avail_vpi is only valid if link is up and ready */ 2243 if (phba->link_state == LPFC_HBA_READY) 2244 *avpi = pmb->un.varRdConfig.avail_vpi; 2245 else 2246 *avpi = pmb->un.varRdConfig.max_vpi; 2247 } 2248 } 2249 2250 /* Success */ 2251 rc = 1; 2252 2253free_pmboxq: 2254 mempool_free(pmboxq, phba->mbox_mem_pool); 2255 return rc; 2256} 2257 2258/** 2259 * lpfc_max_rpi_show - Return maximum rpi 2260 * @dev: class device that is converted into a Scsi_host. 2261 * @attr: device attribute, not used. 2262 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2263 * 2264 * Description: 2265 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2266 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2267 * to "Unknown" and the buffer length is returned, therefore the caller 2268 * must check for "Unknown" in the buffer to detect a failure. 2269 * 2270 * Returns: size of formatted string. 2271 **/ 2272static ssize_t 2273lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2274 char *buf) 2275{ 2276 struct Scsi_Host *shost = class_to_shost(dev); 2277 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2278 struct lpfc_hba *phba = vport->phba; 2279 uint32_t cnt; 2280 2281 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2282 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2283 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2284} 2285 2286/** 2287 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2288 * @dev: class device that is converted into a Scsi_host. 2289 * @attr: device attribute, not used. 2290 * @buf: containing the used rpi count in decimal or "Unknown". 2291 * 2292 * Description: 2293 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 2294 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2295 * to "Unknown" and the buffer length is returned, therefore the caller 2296 * must check for "Unknown" in the buffer to detect a failure. 2297 * 2298 * Returns: size of formatted string. 2299 **/ 2300static ssize_t 2301lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 2302 char *buf) 2303{ 2304 struct Scsi_Host *shost = class_to_shost(dev); 2305 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2306 struct lpfc_hba *phba = vport->phba; 2307 struct lpfc_sli4_hba *sli4_hba; 2308 struct lpfc_max_cfg_param *max_cfg_param; 2309 u32 cnt = 0, acnt = 0; 2310 2311 if (phba->sli_rev == LPFC_SLI_REV4) { 2312 sli4_hba = &phba->sli4_hba; 2313 max_cfg_param = &sli4_hba->max_cfg_param; 2314 return scnprintf(buf, PAGE_SIZE, "%d\n", 2315 max_cfg_param->rpi_used); 2316 } else { 2317 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2318 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2319 } 2320 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2321} 2322 2323/** 2324 * lpfc_max_xri_show - Return maximum xri 2325 * @dev: class device that is converted into a Scsi_host. 2326 * @attr: device attribute, not used. 2327 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2328 * 2329 * Description: 2330 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2331 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2332 * to "Unknown" and the buffer length is returned, therefore the caller 2333 * must check for "Unknown" in the buffer to detect a failure. 2334 * 2335 * Returns: size of formatted string. 2336 **/ 2337static ssize_t 2338lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2339 char *buf) 2340{ 2341 struct Scsi_Host *shost = class_to_shost(dev); 2342 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2343 struct lpfc_hba *phba = vport->phba; 2344 uint32_t cnt; 2345 2346 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2347 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2348 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2349} 2350 2351/** 2352 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2353 * @dev: class device that is converted into a Scsi_host. 2354 * @attr: device attribute, not used. 2355 * @buf: on return contains the used xri count in decimal or "Unknown". 2356 * 2357 * Description: 2358 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2359 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2360 * to "Unknown" and the buffer length is returned, therefore the caller 2361 * must check for "Unknown" in the buffer to detect a failure. 2362 * 2363 * Returns: size of formatted string. 2364 **/ 2365static ssize_t 2366lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2367 char *buf) 2368{ 2369 struct Scsi_Host *shost = class_to_shost(dev); 2370 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2371 struct lpfc_hba *phba = vport->phba; 2372 struct lpfc_sli4_hba *sli4_hba; 2373 struct lpfc_max_cfg_param *max_cfg_param; 2374 u32 cnt = 0, acnt = 0; 2375 2376 if (phba->sli_rev == LPFC_SLI_REV4) { 2377 sli4_hba = &phba->sli4_hba; 2378 max_cfg_param = &sli4_hba->max_cfg_param; 2379 return scnprintf(buf, PAGE_SIZE, "%d\n", 2380 max_cfg_param->xri_used); 2381 } else { 2382 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2383 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2384 } 2385 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2386} 2387 2388/** 2389 * lpfc_max_vpi_show - Return maximum vpi 2390 * @dev: class device that is converted into a Scsi_host. 2391 * @attr: device attribute, not used. 2392 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2393 * 2394 * Description: 2395 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2396 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2397 * to "Unknown" and the buffer length is returned, therefore the caller 2398 * must check for "Unknown" in the buffer to detect a failure. 2399 * 2400 * Returns: size of formatted string. 2401 **/ 2402static ssize_t 2403lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2404 char *buf) 2405{ 2406 struct Scsi_Host *shost = class_to_shost(dev); 2407 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2408 struct lpfc_hba *phba = vport->phba; 2409 uint32_t cnt; 2410 2411 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2412 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2413 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2414} 2415 2416/** 2417 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2418 * @dev: class device that is converted into a Scsi_host. 2419 * @attr: device attribute, not used. 2420 * @buf: on return contains the used vpi count in decimal or "Unknown". 2421 * 2422 * Description: 2423 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2424 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2425 * to "Unknown" and the buffer length is returned, therefore the caller 2426 * must check for "Unknown" in the buffer to detect a failure. 2427 * 2428 * Returns: size of formatted string. 2429 **/ 2430static ssize_t 2431lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2432 char *buf) 2433{ 2434 struct Scsi_Host *shost = class_to_shost(dev); 2435 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2436 struct lpfc_hba *phba = vport->phba; 2437 struct lpfc_sli4_hba *sli4_hba; 2438 struct lpfc_max_cfg_param *max_cfg_param; 2439 u32 cnt = 0, acnt = 0; 2440 2441 if (phba->sli_rev == LPFC_SLI_REV4) { 2442 sli4_hba = &phba->sli4_hba; 2443 max_cfg_param = &sli4_hba->max_cfg_param; 2444 return scnprintf(buf, PAGE_SIZE, "%d\n", 2445 max_cfg_param->vpi_used); 2446 } else { 2447 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2448 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2449 } 2450 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2451} 2452 2453/** 2454 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2455 * @dev: class device that is converted into a Scsi_host. 2456 * @attr: device attribute, not used. 2457 * @buf: text that must be interpreted to determine if npiv is supported. 2458 * 2459 * Description: 2460 * Buffer will contain text indicating npiv is not suppoerted on the port, 2461 * the port is an NPIV physical port, or it is an npiv virtual port with 2462 * the id of the vport. 2463 * 2464 * Returns: size of formatted string. 2465 **/ 2466static ssize_t 2467lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2468 char *buf) 2469{ 2470 struct Scsi_Host *shost = class_to_shost(dev); 2471 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2472 struct lpfc_hba *phba = vport->phba; 2473 2474 if (!(phba->max_vpi)) 2475 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2476 if (vport->port_type == LPFC_PHYSICAL_PORT) 2477 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2478 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2479} 2480 2481/** 2482 * lpfc_poll_show - Return text about poll support for the adapter 2483 * @dev: class device that is converted into a Scsi_host. 2484 * @attr: device attribute, not used. 2485 * @buf: on return contains the cfg_poll in hex. 2486 * 2487 * Notes: 2488 * cfg_poll should be a lpfc_polling_flags type. 2489 * 2490 * Returns: size of formatted string. 2491 **/ 2492static ssize_t 2493lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2494 char *buf) 2495{ 2496 struct Scsi_Host *shost = class_to_shost(dev); 2497 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2498 struct lpfc_hba *phba = vport->phba; 2499 2500 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2501} 2502 2503/** 2504 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2505 * @dev: class device that is converted into a Scsi_host. 2506 * @attr: device attribute, not used. 2507 * @buf: one or more lpfc_polling_flags values. 2508 * @count: not used. 2509 * 2510 * Notes: 2511 * buf contents converted to integer and checked for a valid value. 2512 * 2513 * Returns: 2514 * -EINVAL if the buffer connot be converted or is out of range 2515 * length of the buf on success 2516 **/ 2517static ssize_t 2518lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2519 const char *buf, size_t count) 2520{ 2521 struct Scsi_Host *shost = class_to_shost(dev); 2522 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2523 struct lpfc_hba *phba = vport->phba; 2524 uint32_t creg_val; 2525 uint32_t old_val; 2526 int val=0; 2527 2528 if (!isdigit(buf[0])) 2529 return -EINVAL; 2530 2531 if (sscanf(buf, "%i", &val) != 1) 2532 return -EINVAL; 2533 2534 if ((val & 0x3) != val) 2535 return -EINVAL; 2536 2537 if (phba->sli_rev == LPFC_SLI_REV4) 2538 val = 0; 2539 2540 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2541 "3051 lpfc_poll changed from %d to %d\n", 2542 phba->cfg_poll, val); 2543 2544 spin_lock_irq(&phba->hbalock); 2545 2546 old_val = phba->cfg_poll; 2547 2548 if (val & ENABLE_FCP_RING_POLLING) { 2549 if ((val & DISABLE_FCP_RING_INT) && 2550 !(old_val & DISABLE_FCP_RING_INT)) { 2551 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2552 spin_unlock_irq(&phba->hbalock); 2553 return -EINVAL; 2554 } 2555 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2556 writel(creg_val, phba->HCregaddr); 2557 readl(phba->HCregaddr); /* flush */ 2558 2559 lpfc_poll_start_timer(phba); 2560 } 2561 } else if (val != 0x0) { 2562 spin_unlock_irq(&phba->hbalock); 2563 return -EINVAL; 2564 } 2565 2566 if (!(val & DISABLE_FCP_RING_INT) && 2567 (old_val & DISABLE_FCP_RING_INT)) 2568 { 2569 spin_unlock_irq(&phba->hbalock); 2570 del_timer(&phba->fcp_poll_timer); 2571 spin_lock_irq(&phba->hbalock); 2572 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2573 spin_unlock_irq(&phba->hbalock); 2574 return -EINVAL; 2575 } 2576 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2577 writel(creg_val, phba->HCregaddr); 2578 readl(phba->HCregaddr); /* flush */ 2579 } 2580 2581 phba->cfg_poll = val; 2582 2583 spin_unlock_irq(&phba->hbalock); 2584 2585 return strlen(buf); 2586} 2587 2588/** 2589 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2590 * @dev: class converted to a Scsi_host structure. 2591 * @attr: device attribute, not used. 2592 * @buf: on return contains the formatted support level. 2593 * 2594 * Description: 2595 * Returns the maximum number of virtual functions a physical function can 2596 * support, 0 will be returned if called on virtual function. 2597 * 2598 * Returns: size of formatted string. 2599 **/ 2600static ssize_t 2601lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2602 struct device_attribute *attr, 2603 char *buf) 2604{ 2605 struct Scsi_Host *shost = class_to_shost(dev); 2606 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2607 struct lpfc_hba *phba = vport->phba; 2608 uint16_t max_nr_virtfn; 2609 2610 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2611 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2612} 2613 2614/** 2615 * lpfc_enable_bbcr_set: Sets an attribute value. 2616 * @phba: pointer to the adapter structure. 2617 * @val: integer attribute value. 2618 * 2619 * Description: 2620 * Validates the min and max values then sets the 2621 * adapter config field if in the valid range. prints error message 2622 * and does not set the parameter if invalid. 2623 * 2624 * Returns: 2625 * zero on success 2626 * -EINVAL if val is invalid 2627 */ 2628static ssize_t 2629lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2630{ 2631 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2633 "3068 lpfc_enable_bbcr changed from %d to " 2634 "%d\n", phba->cfg_enable_bbcr, val); 2635 phba->cfg_enable_bbcr = val; 2636 return 0; 2637 } 2638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2639 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2640 "1\n", val); 2641 return -EINVAL; 2642} 2643 2644/* 2645 * lpfc_param_show - Return a cfg attribute value in decimal 2646 * 2647 * Description: 2648 * Macro that given an attr e.g. hba_queue_depth expands 2649 * into a function with the name lpfc_hba_queue_depth_show. 2650 * 2651 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2652 * @dev: class device that is converted into a Scsi_host. 2653 * @attr: device attribute, not used. 2654 * @buf: on return contains the attribute value in decimal. 2655 * 2656 * Returns: size of formatted string. 2657 **/ 2658#define lpfc_param_show(attr) \ 2659static ssize_t \ 2660lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2661 char *buf) \ 2662{ \ 2663 struct Scsi_Host *shost = class_to_shost(dev);\ 2664 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2665 struct lpfc_hba *phba = vport->phba;\ 2666 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2667 phba->cfg_##attr);\ 2668} 2669 2670/* 2671 * lpfc_param_hex_show - Return a cfg attribute value in hex 2672 * 2673 * Description: 2674 * Macro that given an attr e.g. hba_queue_depth expands 2675 * into a function with the name lpfc_hba_queue_depth_show 2676 * 2677 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2678 * @dev: class device that is converted into a Scsi_host. 2679 * @attr: device attribute, not used. 2680 * @buf: on return contains the attribute value in hexadecimal. 2681 * 2682 * Returns: size of formatted string. 2683 **/ 2684#define lpfc_param_hex_show(attr) \ 2685static ssize_t \ 2686lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2687 char *buf) \ 2688{ \ 2689 struct Scsi_Host *shost = class_to_shost(dev);\ 2690 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2691 struct lpfc_hba *phba = vport->phba;\ 2692 uint val = 0;\ 2693 val = phba->cfg_##attr;\ 2694 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2695 phba->cfg_##attr);\ 2696} 2697 2698/* 2699 * lpfc_param_init - Initializes a cfg attribute 2700 * 2701 * Description: 2702 * Macro that given an attr e.g. hba_queue_depth expands 2703 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2704 * takes a default argument, a minimum and maximum argument. 2705 * 2706 * lpfc_##attr##_init: Initializes an attribute. 2707 * @phba: pointer to the adapter structure. 2708 * @val: integer attribute value. 2709 * 2710 * Validates the min and max values then sets the adapter config field 2711 * accordingly, or uses the default if out of range and prints an error message. 2712 * 2713 * Returns: 2714 * zero on success 2715 * -EINVAL if default used 2716 **/ 2717#define lpfc_param_init(attr, default, minval, maxval) \ 2718static int \ 2719lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2720{ \ 2721 if (lpfc_rangecheck(val, minval, maxval)) {\ 2722 phba->cfg_##attr = val;\ 2723 return 0;\ 2724 }\ 2725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2726 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2727 "allowed range is ["#minval", "#maxval"]\n", val); \ 2728 phba->cfg_##attr = default;\ 2729 return -EINVAL;\ 2730} 2731 2732/* 2733 * lpfc_param_set - Set a cfg attribute value 2734 * 2735 * Description: 2736 * Macro that given an attr e.g. hba_queue_depth expands 2737 * into a function with the name lpfc_hba_queue_depth_set 2738 * 2739 * lpfc_##attr##_set: Sets an attribute value. 2740 * @phba: pointer to the adapter structure. 2741 * @val: integer attribute value. 2742 * 2743 * Description: 2744 * Validates the min and max values then sets the 2745 * adapter config field if in the valid range. prints error message 2746 * and does not set the parameter if invalid. 2747 * 2748 * Returns: 2749 * zero on success 2750 * -EINVAL if val is invalid 2751 **/ 2752#define lpfc_param_set(attr, default, minval, maxval) \ 2753static int \ 2754lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2755{ \ 2756 if (lpfc_rangecheck(val, minval, maxval)) {\ 2757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2758 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2759 phba->cfg_##attr, val); \ 2760 phba->cfg_##attr = val;\ 2761 return 0;\ 2762 }\ 2763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2764 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2765 "allowed range is ["#minval", "#maxval"]\n", val); \ 2766 return -EINVAL;\ 2767} 2768 2769/* 2770 * lpfc_param_store - Set a vport attribute value 2771 * 2772 * Description: 2773 * Macro that given an attr e.g. hba_queue_depth expands 2774 * into a function with the name lpfc_hba_queue_depth_store. 2775 * 2776 * lpfc_##attr##_store: Set an sttribute value. 2777 * @dev: class device that is converted into a Scsi_host. 2778 * @attr: device attribute, not used. 2779 * @buf: contains the attribute value in ascii. 2780 * @count: not used. 2781 * 2782 * Description: 2783 * Convert the ascii text number to an integer, then 2784 * use the lpfc_##attr##_set function to set the value. 2785 * 2786 * Returns: 2787 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2788 * length of buffer upon success. 2789 **/ 2790#define lpfc_param_store(attr) \ 2791static ssize_t \ 2792lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2793 const char *buf, size_t count) \ 2794{ \ 2795 struct Scsi_Host *shost = class_to_shost(dev);\ 2796 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2797 struct lpfc_hba *phba = vport->phba;\ 2798 uint val = 0;\ 2799 if (!isdigit(buf[0]))\ 2800 return -EINVAL;\ 2801 if (sscanf(buf, "%i", &val) != 1)\ 2802 return -EINVAL;\ 2803 if (lpfc_##attr##_set(phba, val) == 0) \ 2804 return strlen(buf);\ 2805 else \ 2806 return -EINVAL;\ 2807} 2808 2809/* 2810 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2811 * 2812 * Description: 2813 * Macro that given an attr e.g. hba_queue_depth expands 2814 * into a function with the name lpfc_hba_queue_depth_show 2815 * 2816 * lpfc_##attr##_show: prints the attribute value in decimal. 2817 * @dev: class device that is converted into a Scsi_host. 2818 * @attr: device attribute, not used. 2819 * @buf: on return contains the attribute value in decimal. 2820 * 2821 * Returns: length of formatted string. 2822 **/ 2823#define lpfc_vport_param_show(attr) \ 2824static ssize_t \ 2825lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2826 char *buf) \ 2827{ \ 2828 struct Scsi_Host *shost = class_to_shost(dev);\ 2829 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2830 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2831} 2832 2833/* 2834 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2835 * 2836 * Description: 2837 * Macro that given an attr e.g. 2838 * hba_queue_depth expands into a function with the name 2839 * lpfc_hba_queue_depth_show 2840 * 2841 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2842 * @dev: class device that is converted into a Scsi_host. 2843 * @attr: device attribute, not used. 2844 * @buf: on return contains the attribute value in hexadecimal. 2845 * 2846 * Returns: length of formatted string. 2847 **/ 2848#define lpfc_vport_param_hex_show(attr) \ 2849static ssize_t \ 2850lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2851 char *buf) \ 2852{ \ 2853 struct Scsi_Host *shost = class_to_shost(dev);\ 2854 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2855 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2856} 2857 2858/* 2859 * lpfc_vport_param_init - Initialize a vport cfg attribute 2860 * 2861 * Description: 2862 * Macro that given an attr e.g. hba_queue_depth expands 2863 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2864 * takes a default argument, a minimum and maximum argument. 2865 * 2866 * lpfc_##attr##_init: validates the min and max values then sets the 2867 * adapter config field accordingly, or uses the default if out of range 2868 * and prints an error message. 2869 * @phba: pointer to the adapter structure. 2870 * @val: integer attribute value. 2871 * 2872 * Returns: 2873 * zero on success 2874 * -EINVAL if default used 2875 **/ 2876#define lpfc_vport_param_init(attr, default, minval, maxval) \ 2877static int \ 2878lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2879{ \ 2880 if (lpfc_rangecheck(val, minval, maxval)) {\ 2881 vport->cfg_##attr = val;\ 2882 return 0;\ 2883 }\ 2884 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2885 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2886 "allowed range is ["#minval", "#maxval"]\n", val); \ 2887 vport->cfg_##attr = default;\ 2888 return -EINVAL;\ 2889} 2890 2891/* 2892 * lpfc_vport_param_set - Set a vport cfg attribute 2893 * 2894 * Description: 2895 * Macro that given an attr e.g. hba_queue_depth expands 2896 * into a function with the name lpfc_hba_queue_depth_set 2897 * 2898 * lpfc_##attr##_set: validates the min and max values then sets the 2899 * adapter config field if in the valid range. prints error message 2900 * and does not set the parameter if invalid. 2901 * @phba: pointer to the adapter structure. 2902 * @val: integer attribute value. 2903 * 2904 * Returns: 2905 * zero on success 2906 * -EINVAL if val is invalid 2907 **/ 2908#define lpfc_vport_param_set(attr, default, minval, maxval) \ 2909static int \ 2910lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2911{ \ 2912 if (lpfc_rangecheck(val, minval, maxval)) {\ 2913 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2914 "3053 lpfc_" #attr \ 2915 " changed from %d (x%x) to %d (x%x)\n", \ 2916 vport->cfg_##attr, vport->cfg_##attr, \ 2917 val, val); \ 2918 vport->cfg_##attr = val;\ 2919 return 0;\ 2920 }\ 2921 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2922 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2923 "allowed range is ["#minval", "#maxval"]\n", val); \ 2924 return -EINVAL;\ 2925} 2926 2927/* 2928 * lpfc_vport_param_store - Set a vport attribute 2929 * 2930 * Description: 2931 * Macro that given an attr e.g. hba_queue_depth 2932 * expands into a function with the name lpfc_hba_queue_depth_store 2933 * 2934 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2935 * use the lpfc_##attr##_set function to set the value. 2936 * @cdev: class device that is converted into a Scsi_host. 2937 * @buf: contains the attribute value in decimal. 2938 * @count: not used. 2939 * 2940 * Returns: 2941 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2942 * length of buffer upon success. 2943 **/ 2944#define lpfc_vport_param_store(attr) \ 2945static ssize_t \ 2946lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2947 const char *buf, size_t count) \ 2948{ \ 2949 struct Scsi_Host *shost = class_to_shost(dev);\ 2950 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2951 uint val = 0;\ 2952 if (!isdigit(buf[0]))\ 2953 return -EINVAL;\ 2954 if (sscanf(buf, "%i", &val) != 1)\ 2955 return -EINVAL;\ 2956 if (lpfc_##attr##_set(vport, val) == 0) \ 2957 return strlen(buf);\ 2958 else \ 2959 return -EINVAL;\ 2960} 2961 2962 2963static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2964static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2965static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2966static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2967static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2968static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2969static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2970static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2971static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2972static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2973static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2974static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2975static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2976static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2977static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2978 lpfc_link_state_store); 2979static DEVICE_ATTR(option_rom_version, S_IRUGO, 2980 lpfc_option_rom_version_show, NULL); 2981static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2982 lpfc_num_discovered_ports_show, NULL); 2983static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2984static DEVICE_ATTR_RO(lpfc_drvr_version); 2985static DEVICE_ATTR_RO(lpfc_enable_fip); 2986static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2987 lpfc_board_mode_show, lpfc_board_mode_store); 2988static DEVICE_ATTR_RO(lpfc_xcvr_data); 2989static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2990static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2991static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2992static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2993static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2994static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2995static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2996static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2997static DEVICE_ATTR_RO(lpfc_temp_sensor); 2998static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2999static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 3000static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 3001 NULL); 3002static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 3003 3004#define WWN_SZ 8 3005/** 3006 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 3007 * @buf: WWN string. 3008 * @cnt: Length of string. 3009 * @wwn: Array to receive converted wwn value. 3010 * 3011 * Returns: 3012 * -EINVAL if the buffer does not contain a valid wwn 3013 * 0 success 3014 **/ 3015static size_t 3016lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 3017{ 3018 unsigned int i, j; 3019 3020 /* Count may include a LF at end of string */ 3021 if (buf[cnt-1] == '\n') 3022 cnt--; 3023 3024 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 3025 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 3026 return -EINVAL; 3027 3028 memset(wwn, 0, WWN_SZ); 3029 3030 /* Validate and store the new name */ 3031 for (i = 0, j = 0; i < 16; i++) { 3032 if ((*buf >= 'a') && (*buf <= 'f')) 3033 j = ((j << 4) | ((*buf++ - 'a') + 10)); 3034 else if ((*buf >= 'A') && (*buf <= 'F')) 3035 j = ((j << 4) | ((*buf++ - 'A') + 10)); 3036 else if ((*buf >= '0') && (*buf <= '9')) 3037 j = ((j << 4) | (*buf++ - '0')); 3038 else 3039 return -EINVAL; 3040 if (i % 2) { 3041 wwn[i/2] = j & 0xff; 3042 j = 0; 3043 } 3044 } 3045 return 0; 3046} 3047 3048 3049/** 3050 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 3051 * Optimized Access Storage (OAS) operations. 3052 * @dev: class device that is converted into a Scsi_host. 3053 * @attr: device attribute, not used. 3054 * @buf: buffer for passing information. 3055 * 3056 * Returns: 3057 * value of count 3058 **/ 3059static ssize_t 3060lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 3061 char *buf) 3062{ 3063 struct Scsi_Host *shost = class_to_shost(dev); 3064 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3065 3066 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3067 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3068} 3069 3070/** 3071 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3072 * Optimized Access Storage (OAS) operations. 3073 * @dev: class device that is converted into a Scsi_host. 3074 * @attr: device attribute, not used. 3075 * @buf: buffer for passing information. 3076 * @count: Size of the data buffer. 3077 * 3078 * Returns: 3079 * -EINVAL count is invalid, invalid wwpn byte invalid 3080 * -EPERM oas is not supported by hba 3081 * value of count on success 3082 **/ 3083static ssize_t 3084lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3085 const char *buf, size_t count) 3086{ 3087 struct Scsi_Host *shost = class_to_shost(dev); 3088 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3089 unsigned int cnt = count; 3090 uint8_t wwpn[WWN_SZ]; 3091 int rc; 3092 3093 if (!phba->cfg_fof) 3094 return -EPERM; 3095 3096 /* count may include a LF at end of string */ 3097 if (buf[cnt-1] == '\n') 3098 cnt--; 3099 3100 rc = lpfc_wwn_set(buf, cnt, wwpn); 3101 if (rc) 3102 return rc; 3103 3104 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3105 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3106 if (wwn_to_u64(wwpn) == 0) 3107 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3108 else 3109 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3110 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3111 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3112 return count; 3113} 3114static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3115 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3116 3117/** 3118 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3119 * Optimized Access Storage (OAS) operations. 3120 * @dev: class device that is converted into a Scsi_host. 3121 * @attr: device attribute, not used. 3122 * @buf: buffer for passing information. 3123 * 3124 * Returns: 3125 * value of count 3126 **/ 3127static ssize_t 3128lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3129 char *buf) 3130{ 3131 struct Scsi_Host *shost = class_to_shost(dev); 3132 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3133 3134 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3135} 3136 3137/** 3138 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3139 * Optimized Access Storage (OAS) operations. 3140 * @dev: class device that is converted into a Scsi_host. 3141 * @attr: device attribute, not used. 3142 * @buf: buffer for passing information. 3143 * @count: Size of the data buffer. 3144 * 3145 * Returns: 3146 * -EINVAL count is invalid, invalid wwpn byte invalid 3147 * -EPERM oas is not supported by hba 3148 * value of count on success 3149 **/ 3150static ssize_t 3151lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3152 const char *buf, size_t count) 3153{ 3154 struct Scsi_Host *shost = class_to_shost(dev); 3155 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3156 unsigned int cnt = count; 3157 unsigned long val; 3158 int ret; 3159 3160 if (!phba->cfg_fof) 3161 return -EPERM; 3162 3163 /* count may include a LF at end of string */ 3164 if (buf[cnt-1] == '\n') 3165 cnt--; 3166 3167 ret = kstrtoul(buf, 0, &val); 3168 if (ret || (val > 0x7f)) 3169 return -EINVAL; 3170 3171 if (val) 3172 phba->cfg_oas_priority = (uint8_t)val; 3173 else 3174 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3175 return count; 3176} 3177static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3178 lpfc_oas_priority_show, lpfc_oas_priority_store); 3179 3180/** 3181 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3182 * for Optimized Access Storage (OAS) operations. 3183 * @dev: class device that is converted into a Scsi_host. 3184 * @attr: device attribute, not used. 3185 * @buf: buffer for passing information. 3186 * 3187 * Returns: 3188 * value of count on success 3189 **/ 3190static ssize_t 3191lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3192 char *buf) 3193{ 3194 struct Scsi_Host *shost = class_to_shost(dev); 3195 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3196 3197 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3198 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3199} 3200 3201/** 3202 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3203 * for Optimized Access Storage (OAS) operations. 3204 * @dev: class device that is converted into a Scsi_host. 3205 * @attr: device attribute, not used. 3206 * @buf: buffer for passing information. 3207 * @count: Size of the data buffer. 3208 * 3209 * Returns: 3210 * -EINVAL count is invalid, invalid wwpn byte invalid 3211 * -EPERM oas is not supported by hba 3212 * value of count on success 3213 **/ 3214static ssize_t 3215lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3216 const char *buf, size_t count) 3217{ 3218 struct Scsi_Host *shost = class_to_shost(dev); 3219 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3220 unsigned int cnt = count; 3221 uint8_t wwpn[WWN_SZ]; 3222 int rc; 3223 3224 if (!phba->cfg_fof) 3225 return -EPERM; 3226 3227 /* count may include a LF at end of string */ 3228 if (buf[cnt-1] == '\n') 3229 cnt--; 3230 3231 rc = lpfc_wwn_set(buf, cnt, wwpn); 3232 if (rc) 3233 return rc; 3234 3235 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3236 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3237 if (wwn_to_u64(wwpn) == 0) 3238 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3239 else 3240 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3241 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3242 if (phba->cfg_oas_priority == 0) 3243 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3244 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3245 return count; 3246} 3247static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3248 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3249 3250/** 3251 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3252 * of whether luns will be enabled or disabled 3253 * for Optimized Access Storage (OAS) operations. 3254 * @dev: class device that is converted into a Scsi_host. 3255 * @attr: device attribute, not used. 3256 * @buf: buffer for passing information. 3257 * 3258 * Returns: 3259 * size of formatted string. 3260 **/ 3261static ssize_t 3262lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3263 char *buf) 3264{ 3265 struct Scsi_Host *shost = class_to_shost(dev); 3266 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3267 3268 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3269} 3270 3271/** 3272 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3273 * of whether luns will be enabled or disabled 3274 * for Optimized Access Storage (OAS) operations. 3275 * @dev: class device that is converted into a Scsi_host. 3276 * @attr: device attribute, not used. 3277 * @buf: buffer for passing information. 3278 * @count: Size of the data buffer. 3279 * 3280 * Returns: 3281 * -EINVAL count is invalid, invalid wwpn byte invalid 3282 * -EPERM oas is not supported by hba 3283 * value of count on success 3284 **/ 3285static ssize_t 3286lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3287 const char *buf, size_t count) 3288{ 3289 struct Scsi_Host *shost = class_to_shost(dev); 3290 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3291 int val = 0; 3292 3293 if (!phba->cfg_fof) 3294 return -EPERM; 3295 3296 if (!isdigit(buf[0])) 3297 return -EINVAL; 3298 3299 if (sscanf(buf, "%i", &val) != 1) 3300 return -EINVAL; 3301 3302 if ((val != 0) && (val != 1)) 3303 return -EINVAL; 3304 3305 phba->cfg_oas_lun_state = val; 3306 return strlen(buf); 3307} 3308static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3309 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3310 3311/** 3312 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3313 * Storage (OAS) lun returned by the 3314 * lpfc_oas_lun_show function. 3315 * @dev: class device that is converted into a Scsi_host. 3316 * @attr: device attribute, not used. 3317 * @buf: buffer for passing information. 3318 * 3319 * Returns: 3320 * size of formatted string. 3321 **/ 3322static ssize_t 3323lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3324 char *buf) 3325{ 3326 struct Scsi_Host *shost = class_to_shost(dev); 3327 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3328 3329 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3330 return -EFAULT; 3331 3332 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3333} 3334static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3335 lpfc_oas_lun_status_show, NULL); 3336 3337 3338/** 3339 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3340 * (OAS) operations. 3341 * @phba: lpfc_hba pointer. 3342 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3343 * @tgt_wwpn: wwpn of the target associated with the returned lun 3344 * @lun: the fc lun for setting oas state. 3345 * @oas_state: the oas state to be set to the lun. 3346 * @pri: priority 3347 * 3348 * Returns: 3349 * SUCCESS : 0 3350 * -EPERM OAS is not enabled or not supported by this port. 3351 * 3352 */ 3353static size_t 3354lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3355 uint8_t tgt_wwpn[], uint64_t lun, 3356 uint32_t oas_state, uint8_t pri) 3357{ 3358 3359 int rc = 0; 3360 3361 if (!phba->cfg_fof) 3362 return -EPERM; 3363 3364 if (oas_state) { 3365 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3366 (struct lpfc_name *)tgt_wwpn, 3367 lun, pri)) 3368 rc = -ENOMEM; 3369 } else { 3370 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3371 (struct lpfc_name *)tgt_wwpn, lun, pri); 3372 } 3373 return rc; 3374 3375} 3376 3377/** 3378 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3379 * Access Storage (OAS) operations. 3380 * @phba: lpfc_hba pointer. 3381 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3382 * @tgt_wwpn: wwpn of the target associated with the returned lun 3383 * @lun_status: status of the lun returned lun 3384 * @lun_pri: priority of the lun returned lun 3385 * 3386 * Returns the first or next lun enabled for OAS operations for the vport/target 3387 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3388 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3389 * 3390 * Return: 3391 * lun that is OAS enabled for the vport/target 3392 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3393 */ 3394static uint64_t 3395lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3396 uint8_t tgt_wwpn[], uint32_t *lun_status, 3397 uint32_t *lun_pri) 3398{ 3399 uint64_t found_lun; 3400 3401 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3402 return NOT_OAS_ENABLED_LUN; 3403 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3404 phba->sli4_hba.oas_next_vpt_wwpn, 3405 (struct lpfc_name *) 3406 phba->sli4_hba.oas_next_tgt_wwpn, 3407 &phba->sli4_hba.oas_next_lun, 3408 (struct lpfc_name *)vpt_wwpn, 3409 (struct lpfc_name *)tgt_wwpn, 3410 &found_lun, lun_status, lun_pri)) 3411 return found_lun; 3412 else 3413 return NOT_OAS_ENABLED_LUN; 3414} 3415 3416/** 3417 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3418 * @phba: lpfc_hba pointer. 3419 * @vpt_wwpn: vport wwpn by reference. 3420 * @tgt_wwpn: target wwpn by reference. 3421 * @lun: the fc lun for setting oas state. 3422 * @oas_state: the oas state to be set to the oas_lun. 3423 * @pri: priority 3424 * 3425 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3426 * a lun for OAS operations. 3427 * 3428 * Return: 3429 * SUCCESS: 0 3430 * -ENOMEM: failed to enable an lun for OAS operations 3431 * -EPERM: OAS is not enabled 3432 */ 3433static ssize_t 3434lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3435 uint8_t tgt_wwpn[], uint64_t lun, 3436 uint32_t oas_state, uint8_t pri) 3437{ 3438 3439 int rc; 3440 3441 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3442 oas_state, pri); 3443 return rc; 3444} 3445 3446/** 3447 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3448 * @dev: class device that is converted into a Scsi_host. 3449 * @attr: device attribute, not used. 3450 * @buf: buffer for passing information. 3451 * 3452 * This routine returns a lun enabled for OAS each time the function 3453 * is called. 3454 * 3455 * Returns: 3456 * SUCCESS: size of formatted string. 3457 * -EFAULT: target or vport wwpn was not set properly. 3458 * -EPERM: oas is not enabled. 3459 **/ 3460static ssize_t 3461lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3462 char *buf) 3463{ 3464 struct Scsi_Host *shost = class_to_shost(dev); 3465 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3466 3467 uint64_t oas_lun; 3468 int len = 0; 3469 3470 if (!phba->cfg_fof) 3471 return -EPERM; 3472 3473 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3474 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3475 return -EFAULT; 3476 3477 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3478 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3479 return -EFAULT; 3480 3481 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3482 phba->cfg_oas_tgt_wwpn, 3483 &phba->cfg_oas_lun_status, 3484 &phba->cfg_oas_priority); 3485 if (oas_lun != NOT_OAS_ENABLED_LUN) 3486 phba->cfg_oas_flags |= OAS_LUN_VALID; 3487 3488 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3489 3490 return len; 3491} 3492 3493/** 3494 * lpfc_oas_lun_store - Sets the OAS state for lun 3495 * @dev: class device that is converted into a Scsi_host. 3496 * @attr: device attribute, not used. 3497 * @buf: buffer for passing information. 3498 * @count: size of the formatting string 3499 * 3500 * This function sets the OAS state for lun. Before this function is called, 3501 * the vport wwpn, target wwpn, and oas state need to be set. 3502 * 3503 * Returns: 3504 * SUCCESS: size of formatted string. 3505 * -EFAULT: target or vport wwpn was not set properly. 3506 * -EPERM: oas is not enabled. 3507 * size of formatted string. 3508 **/ 3509static ssize_t 3510lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3511 const char *buf, size_t count) 3512{ 3513 struct Scsi_Host *shost = class_to_shost(dev); 3514 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3515 uint64_t scsi_lun; 3516 uint32_t pri; 3517 ssize_t rc; 3518 3519 if (!phba->cfg_fof) 3520 return -EPERM; 3521 3522 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3523 return -EFAULT; 3524 3525 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3526 return -EFAULT; 3527 3528 if (!isdigit(buf[0])) 3529 return -EINVAL; 3530 3531 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3532 return -EINVAL; 3533 3534 pri = phba->cfg_oas_priority; 3535 if (pri == 0) 3536 pri = phba->cfg_XLanePriority; 3537 3538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3539 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3540 "priority 0x%x with oas state %d\n", 3541 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3542 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3543 pri, phba->cfg_oas_lun_state); 3544 3545 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3546 phba->cfg_oas_tgt_wwpn, scsi_lun, 3547 phba->cfg_oas_lun_state, pri); 3548 if (rc) 3549 return rc; 3550 3551 return count; 3552} 3553static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3554 lpfc_oas_lun_show, lpfc_oas_lun_store); 3555 3556int lpfc_enable_nvmet_cnt; 3557unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3558 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3559 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3560module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3561MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3562 3563static int lpfc_poll = 0; 3564module_param(lpfc_poll, int, S_IRUGO); 3565MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3566 " 0 - none," 3567 " 1 - poll with interrupts enabled" 3568 " 3 - poll and disable FCP ring interrupts"); 3569 3570static DEVICE_ATTR_RW(lpfc_poll); 3571 3572int lpfc_no_hba_reset_cnt; 3573unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3574 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3575module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3576MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3577 3578LPFC_ATTR(sli_mode, 3, 3, 3, 3579 "SLI mode selector: 3 - select SLI-3"); 3580 3581LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3582 "Enable NPIV functionality"); 3583 3584LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3585 "FCF Fast failover=1 Priority failover=2"); 3586 3587/* 3588 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3589 * aborted IO. 3590 * The range is [0,1]. Default value is 0 3591 * 0, IO completes after ABTS issued (default). 3592 * 1, IO completes after receipt of ABTS response or timeout. 3593 */ 3594LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3595 3596/* 3597# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3598# 0x0 = disabled, XRI/OXID use not tracked. 3599# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3600# 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3601*/ 3602LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3603 "Enable RRQ functionality"); 3604 3605/* 3606# lpfc_suppress_link_up: Bring link up at initialization 3607# 0x0 = bring link up (issue MBX_INIT_LINK) 3608# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3609# 0x2 = never bring up link 3610# Default value is 0. 3611*/ 3612LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3613 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3614 "Suppress Link Up at initialization"); 3615 3616static ssize_t 3617lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3618{ 3619 struct Scsi_Host *shost = class_to_shost(dev); 3620 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3621 3622 return scnprintf(buf, PAGE_SIZE, "%d\n", 3623 phba->sli4_hba.pc_sli4_params.pls); 3624} 3625static DEVICE_ATTR(pls, 0444, 3626 lpfc_pls_show, NULL); 3627 3628static ssize_t 3629lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3630{ 3631 struct Scsi_Host *shost = class_to_shost(dev); 3632 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3633 3634 return scnprintf(buf, PAGE_SIZE, "%d\n", 3635 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3636} 3637static DEVICE_ATTR(pt, 0444, 3638 lpfc_pt_show, NULL); 3639 3640/* 3641# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3642# 1 - (1024) 3643# 2 - (2048) 3644# 3 - (3072) 3645# 4 - (4096) 3646# 5 - (5120) 3647*/ 3648static ssize_t 3649lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3650{ 3651 struct Scsi_Host *shost = class_to_shost(dev); 3652 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3653 3654 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3655} 3656 3657static DEVICE_ATTR(iocb_hw, S_IRUGO, 3658 lpfc_iocb_hw_show, NULL); 3659static ssize_t 3660lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3661{ 3662 struct Scsi_Host *shost = class_to_shost(dev); 3663 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3664 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3665 3666 return scnprintf(buf, PAGE_SIZE, "%d\n", 3667 pring ? pring->txq_max : 0); 3668} 3669 3670static DEVICE_ATTR(txq_hw, S_IRUGO, 3671 lpfc_txq_hw_show, NULL); 3672static ssize_t 3673lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3674 char *buf) 3675{ 3676 struct Scsi_Host *shost = class_to_shost(dev); 3677 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3678 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3679 3680 return scnprintf(buf, PAGE_SIZE, "%d\n", 3681 pring ? pring->txcmplq_max : 0); 3682} 3683 3684static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3685 lpfc_txcmplq_hw_show, NULL); 3686 3687/* 3688# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3689# until the timer expires. Value range is [0,255]. Default value is 30. 3690*/ 3691static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3692static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3693module_param(lpfc_nodev_tmo, int, 0); 3694MODULE_PARM_DESC(lpfc_nodev_tmo, 3695 "Seconds driver will hold I/O waiting " 3696 "for a device to come back"); 3697 3698/** 3699 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3700 * @dev: class converted to a Scsi_host structure. 3701 * @attr: device attribute, not used. 3702 * @buf: on return contains the dev loss timeout in decimal. 3703 * 3704 * Returns: size of formatted string. 3705 **/ 3706static ssize_t 3707lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3708 char *buf) 3709{ 3710 struct Scsi_Host *shost = class_to_shost(dev); 3711 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3712 3713 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3714} 3715 3716/** 3717 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3718 * @vport: lpfc vport structure pointer. 3719 * @val: contains the nodev timeout value. 3720 * 3721 * Description: 3722 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3723 * a kernel error message is printed and zero is returned. 3724 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3725 * Otherwise nodev tmo is set to the default value. 3726 * 3727 * Returns: 3728 * zero if already set or if val is in range 3729 * -EINVAL val out of range 3730 **/ 3731static int 3732lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3733{ 3734 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3735 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3736 if (val != LPFC_DEF_DEVLOSS_TMO) 3737 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3738 "0407 Ignoring lpfc_nodev_tmo module " 3739 "parameter because lpfc_devloss_tmo " 3740 "is set.\n"); 3741 return 0; 3742 } 3743 3744 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3745 vport->cfg_nodev_tmo = val; 3746 vport->cfg_devloss_tmo = val; 3747 return 0; 3748 } 3749 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3750 "0400 lpfc_nodev_tmo attribute cannot be set to" 3751 " %d, allowed range is [%d, %d]\n", 3752 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3753 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3754 return -EINVAL; 3755} 3756 3757/** 3758 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3759 * @vport: lpfc vport structure pointer. 3760 * 3761 * Description: 3762 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3763 **/ 3764static void 3765lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3766{ 3767 struct Scsi_Host *shost; 3768 struct lpfc_nodelist *ndlp; 3769#if (IS_ENABLED(CONFIG_NVME_FC)) 3770 struct lpfc_nvme_rport *rport; 3771 struct nvme_fc_remote_port *remoteport = NULL; 3772#endif 3773 3774 shost = lpfc_shost_from_vport(vport); 3775 spin_lock_irq(shost->host_lock); 3776 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3777 if (ndlp->rport) 3778 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3779#if (IS_ENABLED(CONFIG_NVME_FC)) 3780 spin_lock(&ndlp->lock); 3781 rport = lpfc_ndlp_get_nrport(ndlp); 3782 if (rport) 3783 remoteport = rport->remoteport; 3784 spin_unlock(&ndlp->lock); 3785 if (rport && remoteport) 3786 nvme_fc_set_remoteport_devloss(remoteport, 3787 vport->cfg_devloss_tmo); 3788#endif 3789 } 3790 spin_unlock_irq(shost->host_lock); 3791} 3792 3793/** 3794 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3795 * @vport: lpfc vport structure pointer. 3796 * @val: contains the tmo value. 3797 * 3798 * Description: 3799 * If the devloss tmo is already set or the vport dev loss tmo has changed 3800 * then a kernel error message is printed and zero is returned. 3801 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3802 * Otherwise nodev tmo is set to the default value. 3803 * 3804 * Returns: 3805 * zero if already set or if val is in range 3806 * -EINVAL val out of range 3807 **/ 3808static int 3809lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3810{ 3811 if (vport->dev_loss_tmo_changed || 3812 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3813 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3814 "0401 Ignoring change to lpfc_nodev_tmo " 3815 "because lpfc_devloss_tmo is set.\n"); 3816 return 0; 3817 } 3818 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3819 vport->cfg_nodev_tmo = val; 3820 vport->cfg_devloss_tmo = val; 3821 /* 3822 * For compat: set the fc_host dev loss so new rports 3823 * will get the value. 3824 */ 3825 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3826 lpfc_update_rport_devloss_tmo(vport); 3827 return 0; 3828 } 3829 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3830 "0403 lpfc_nodev_tmo attribute cannot be set to " 3831 "%d, allowed range is [%d, %d]\n", 3832 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3833 return -EINVAL; 3834} 3835 3836lpfc_vport_param_store(nodev_tmo) 3837 3838static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3839 3840/* 3841# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3842# disappear until the timer expires. Value range is [0,255]. Default 3843# value is 30. 3844*/ 3845module_param(lpfc_devloss_tmo, int, S_IRUGO); 3846MODULE_PARM_DESC(lpfc_devloss_tmo, 3847 "Seconds driver will hold I/O waiting " 3848 "for a device to come back"); 3849lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3850 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3851lpfc_vport_param_show(devloss_tmo) 3852 3853/** 3854 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3855 * @vport: lpfc vport structure pointer. 3856 * @val: contains the tmo value. 3857 * 3858 * Description: 3859 * If val is in a valid range then set the vport nodev tmo, 3860 * devloss tmo, also set the vport dev loss tmo changed flag. 3861 * Else a kernel error message is printed. 3862 * 3863 * Returns: 3864 * zero if val is in range 3865 * -EINVAL val out of range 3866 **/ 3867static int 3868lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3869{ 3870 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3871 vport->cfg_nodev_tmo = val; 3872 vport->cfg_devloss_tmo = val; 3873 vport->dev_loss_tmo_changed = 1; 3874 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3875 lpfc_update_rport_devloss_tmo(vport); 3876 return 0; 3877 } 3878 3879 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3880 "0404 lpfc_devloss_tmo attribute cannot be set to " 3881 "%d, allowed range is [%d, %d]\n", 3882 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3883 return -EINVAL; 3884} 3885 3886lpfc_vport_param_store(devloss_tmo) 3887static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3888 3889/* 3890 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3891 * lpfc_suppress_rsp = 0 Disable 3892 * lpfc_suppress_rsp = 1 Enable (default) 3893 * 3894 */ 3895LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3896 "Enable suppress rsp feature is firmware supports it"); 3897 3898/* 3899 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3900 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3901 * lpfc_nvmet_mrq = 1 use a single RQ pair 3902 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3903 * 3904 */ 3905LPFC_ATTR_R(nvmet_mrq, 3906 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3907 "Specify number of RQ pairs for processing NVMET cmds"); 3908 3909/* 3910 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3911 * to each NVMET RQ. Range 64 to 2048, default is 512. 3912 */ 3913LPFC_ATTR_R(nvmet_mrq_post, 3914 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3915 LPFC_NVMET_RQE_DEF_COUNT, 3916 "Specify number of RQ buffers to initially post"); 3917 3918/* 3919 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3920 * Supported Values: 1 - register just FCP 3921 * 3 - register both FCP and NVME 3922 * Supported values are [1,3]. Default value is 3 3923 */ 3924LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, 3925 LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, 3926 "Enable FC4 Protocol support - FCP / NVME"); 3927 3928/* 3929# lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3930# deluged with LOTS of information. 3931# You can set a bit mask to record specific types of verbose messages: 3932# See lpfc_logmsh.h for definitions. 3933*/ 3934LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3935 "Verbose logging bit-mask"); 3936 3937/* 3938# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3939# objects that have been registered with the nameserver after login. 3940*/ 3941LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3942 "Deregister nameserver objects before LOGO"); 3943 3944/* 3945# lun_queue_depth: This parameter is used to limit the number of outstanding 3946# commands per FCP LUN. 3947*/ 3948LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3949 "Max number of FCP commands we can queue to a specific LUN"); 3950 3951/* 3952# tgt_queue_depth: This parameter is used to limit the number of outstanding 3953# commands per target port. Value range is [10,65535]. Default value is 65535. 3954*/ 3955static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3956module_param(lpfc_tgt_queue_depth, uint, 0444); 3957MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3958lpfc_vport_param_show(tgt_queue_depth); 3959lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3960 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3961 3962/** 3963 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3964 * @vport: lpfc vport structure pointer. 3965 * @val: integer attribute value. 3966 * 3967 * Description: Sets the parameter to the new value. 3968 * 3969 * Returns: 3970 * zero on success 3971 * -EINVAL if val is invalid 3972 */ 3973static int 3974lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3975{ 3976 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3977 struct lpfc_nodelist *ndlp; 3978 3979 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3980 return -EINVAL; 3981 3982 if (val == vport->cfg_tgt_queue_depth) 3983 return 0; 3984 3985 spin_lock_irq(shost->host_lock); 3986 vport->cfg_tgt_queue_depth = val; 3987 3988 /* Next loop thru nodelist and change cmd_qdepth */ 3989 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3990 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3991 3992 spin_unlock_irq(shost->host_lock); 3993 return 0; 3994} 3995 3996lpfc_vport_param_store(tgt_queue_depth); 3997static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3998 3999/* 4000# hba_queue_depth: This parameter is used to limit the number of outstanding 4001# commands per lpfc HBA. Value range is [32,8192]. If this parameter 4002# value is greater than the maximum number of exchanges supported by the HBA, 4003# then maximum number of exchanges supported by the HBA is used to determine 4004# the hba_queue_depth. 4005*/ 4006LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 4007 "Max number of FCP commands we can queue to a lpfc HBA"); 4008 4009/* 4010# peer_port_login: This parameter allows/prevents logins 4011# between peer ports hosted on the same physical port. 4012# When this parameter is set 0 peer ports of same physical port 4013# are not allowed to login to each other. 4014# When this parameter is set 1 peer ports of same physical port 4015# are allowed to login to each other. 4016# Default value of this parameter is 0. 4017*/ 4018LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 4019 "Allow peer ports on the same physical port to login to each " 4020 "other."); 4021 4022/* 4023# restrict_login: This parameter allows/prevents logins 4024# between Virtual Ports and remote initiators. 4025# When this parameter is not set (0) Virtual Ports will accept PLOGIs from 4026# other initiators and will attempt to PLOGI all remote ports. 4027# When this parameter is set (1) Virtual Ports will reject PLOGIs from 4028# remote ports and will not attempt to PLOGI to other initiators. 4029# This parameter does not restrict to the physical port. 4030# This parameter does not restrict logins to Fabric resident remote ports. 4031# Default value of this parameter is 1. 4032*/ 4033static int lpfc_restrict_login = 1; 4034module_param(lpfc_restrict_login, int, S_IRUGO); 4035MODULE_PARM_DESC(lpfc_restrict_login, 4036 "Restrict virtual ports login to remote initiators."); 4037lpfc_vport_param_show(restrict_login); 4038 4039/** 4040 * lpfc_restrict_login_init - Set the vport restrict login flag 4041 * @vport: lpfc vport structure pointer. 4042 * @val: contains the restrict login value. 4043 * 4044 * Description: 4045 * If val is not in a valid range then log a kernel error message and set 4046 * the vport restrict login to one. 4047 * If the port type is physical clear the restrict login flag and return. 4048 * Else set the restrict login flag to val. 4049 * 4050 * Returns: 4051 * zero if val is in range 4052 * -EINVAL val out of range 4053 **/ 4054static int 4055lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 4056{ 4057 if (val < 0 || val > 1) { 4058 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4059 "0422 lpfc_restrict_login attribute cannot " 4060 "be set to %d, allowed range is [0, 1]\n", 4061 val); 4062 vport->cfg_restrict_login = 1; 4063 return -EINVAL; 4064 } 4065 if (vport->port_type == LPFC_PHYSICAL_PORT) { 4066 vport->cfg_restrict_login = 0; 4067 return 0; 4068 } 4069 vport->cfg_restrict_login = val; 4070 return 0; 4071} 4072 4073/** 4074 * lpfc_restrict_login_set - Set the vport restrict login flag 4075 * @vport: lpfc vport structure pointer. 4076 * @val: contains the restrict login value. 4077 * 4078 * Description: 4079 * If val is not in a valid range then log a kernel error message and set 4080 * the vport restrict login to one. 4081 * If the port type is physical and the val is not zero log a kernel 4082 * error message, clear the restrict login flag and return zero. 4083 * Else set the restrict login flag to val. 4084 * 4085 * Returns: 4086 * zero if val is in range 4087 * -EINVAL val out of range 4088 **/ 4089static int 4090lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4091{ 4092 if (val < 0 || val > 1) { 4093 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4094 "0425 lpfc_restrict_login attribute cannot " 4095 "be set to %d, allowed range is [0, 1]\n", 4096 val); 4097 vport->cfg_restrict_login = 1; 4098 return -EINVAL; 4099 } 4100 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4101 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4102 "0468 lpfc_restrict_login must be 0 for " 4103 "Physical ports.\n"); 4104 vport->cfg_restrict_login = 0; 4105 return 0; 4106 } 4107 vport->cfg_restrict_login = val; 4108 return 0; 4109} 4110lpfc_vport_param_store(restrict_login); 4111static DEVICE_ATTR_RW(lpfc_restrict_login); 4112 4113/* 4114# Some disk devices have a "select ID" or "select Target" capability. 4115# From a protocol standpoint "select ID" usually means select the 4116# Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4117# annex" which contains a table that maps a "select ID" (a number 4118# between 0 and 7F) to an ALPA. By default, for compatibility with 4119# older drivers, the lpfc driver scans this table from low ALPA to high 4120# ALPA. 4121# 4122# Turning on the scan-down variable (on = 1, off = 0) will 4123# cause the lpfc driver to use an inverted table, effectively 4124# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4125# 4126# (Note: This "select ID" functionality is a LOOP ONLY characteristic 4127# and will not work across a fabric. Also this parameter will take 4128# effect only in the case when ALPA map is not available.) 4129*/ 4130LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4131 "Start scanning for devices from highest ALPA to lowest"); 4132 4133/* 4134# lpfc_topology: link topology for init link 4135# 0x0 = attempt loop mode then point-to-point 4136# 0x01 = internal loopback mode 4137# 0x02 = attempt point-to-point mode only 4138# 0x04 = attempt loop mode only 4139# 0x06 = attempt point-to-point mode then loop 4140# Set point-to-point mode if you want to run as an N_Port. 4141# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4142# Default value is 0. 4143*/ 4144LPFC_ATTR(topology, 0, 0, 6, 4145 "Select Fibre Channel topology"); 4146 4147/** 4148 * lpfc_topology_store - Set the adapters topology field 4149 * @dev: class device that is converted into a scsi_host. 4150 * @attr:device attribute, not used. 4151 * @buf: buffer for passing information. 4152 * @count: size of the data buffer. 4153 * 4154 * Description: 4155 * If val is in a valid range then set the adapter's topology field and 4156 * issue a lip; if the lip fails reset the topology to the old value. 4157 * 4158 * If the value is not in range log a kernel error message and return an error. 4159 * 4160 * Returns: 4161 * zero if val is in range and lip okay 4162 * non-zero return value from lpfc_issue_lip() 4163 * -EINVAL val out of range 4164 **/ 4165static ssize_t 4166lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4167 const char *buf, size_t count) 4168{ 4169 struct Scsi_Host *shost = class_to_shost(dev); 4170 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4171 struct lpfc_hba *phba = vport->phba; 4172 int val = 0; 4173 int nolip = 0; 4174 const char *val_buf = buf; 4175 int err; 4176 uint32_t prev_val; 4177 u8 sli_family, if_type; 4178 4179 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4180 nolip = 1; 4181 val_buf = &buf[strlen("nolip ")]; 4182 } 4183 4184 if (!isdigit(val_buf[0])) 4185 return -EINVAL; 4186 if (sscanf(val_buf, "%i", &val) != 1) 4187 return -EINVAL; 4188 4189 if (val >= 0 && val <= 6) { 4190 prev_val = phba->cfg_topology; 4191 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4192 val == 4) { 4193 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4194 "3113 Loop mode not supported at speed %d\n", 4195 val); 4196 return -EINVAL; 4197 } 4198 /* 4199 * The 'topology' is not a configurable parameter if : 4200 * - persistent topology enabled 4201 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4202 */ 4203 sli_family = bf_get(lpfc_sli_intf_sli_family, 4204 &phba->sli4_hba.sli_intf); 4205 if_type = bf_get(lpfc_sli_intf_if_type, 4206 &phba->sli4_hba.sli_intf); 4207 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4208 (!phba->sli4_hba.pc_sli4_params.pls && 4209 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4210 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4211 val == 4) { 4212 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4213 "3114 Loop mode not supported\n"); 4214 return -EINVAL; 4215 } 4216 phba->cfg_topology = val; 4217 if (nolip) 4218 return strlen(buf); 4219 4220 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4221 "3054 lpfc_topology changed from %d to %d\n", 4222 prev_val, val); 4223 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4224 phba->fc_topology_changed = 1; 4225 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4226 if (err) { 4227 phba->cfg_topology = prev_val; 4228 return -EINVAL; 4229 } else 4230 return strlen(buf); 4231 } 4232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4233 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4234 "allowed range is [0, 6]\n", 4235 phba->brd_no, val); 4236 return -EINVAL; 4237} 4238 4239lpfc_param_show(topology) 4240static DEVICE_ATTR_RW(lpfc_topology); 4241 4242/** 4243 * lpfc_static_vport_show: Read callback function for 4244 * lpfc_static_vport sysfs file. 4245 * @dev: Pointer to class device object. 4246 * @attr: device attribute structure. 4247 * @buf: Data buffer. 4248 * 4249 * This function is the read call back function for 4250 * lpfc_static_vport sysfs file. The lpfc_static_vport 4251 * sysfs file report the mageability of the vport. 4252 **/ 4253static ssize_t 4254lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4255 char *buf) 4256{ 4257 struct Scsi_Host *shost = class_to_shost(dev); 4258 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4259 if (vport->vport_flag & STATIC_VPORT) 4260 sprintf(buf, "1\n"); 4261 else 4262 sprintf(buf, "0\n"); 4263 4264 return strlen(buf); 4265} 4266 4267/* 4268 * Sysfs attribute to control the statistical data collection. 4269 */ 4270static DEVICE_ATTR_RO(lpfc_static_vport); 4271 4272/* 4273# lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4274# connection. 4275# Value range is [0,16]. Default value is 0. 4276*/ 4277/** 4278 * lpfc_link_speed_store - Set the adapters link speed 4279 * @dev: Pointer to class device. 4280 * @attr: Unused. 4281 * @buf: Data buffer. 4282 * @count: Size of the data buffer. 4283 * 4284 * Description: 4285 * If val is in a valid range then set the adapter's link speed field and 4286 * issue a lip; if the lip fails reset the link speed to the old value. 4287 * 4288 * Notes: 4289 * If the value is not in range log a kernel error message and return an error. 4290 * 4291 * Returns: 4292 * zero if val is in range and lip okay. 4293 * non-zero return value from lpfc_issue_lip() 4294 * -EINVAL val out of range 4295 **/ 4296static ssize_t 4297lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4298 const char *buf, size_t count) 4299{ 4300 struct Scsi_Host *shost = class_to_shost(dev); 4301 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4302 struct lpfc_hba *phba = vport->phba; 4303 int val = LPFC_USER_LINK_SPEED_AUTO; 4304 int nolip = 0; 4305 const char *val_buf = buf; 4306 int err; 4307 uint32_t prev_val, if_type; 4308 4309 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4310 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4311 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4312 return -EPERM; 4313 4314 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4315 nolip = 1; 4316 val_buf = &buf[strlen("nolip ")]; 4317 } 4318 4319 if (!isdigit(val_buf[0])) 4320 return -EINVAL; 4321 if (sscanf(val_buf, "%i", &val) != 1) 4322 return -EINVAL; 4323 4324 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4325 "3055 lpfc_link_speed changed from %d to %d %s\n", 4326 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4327 4328 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4329 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4330 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4331 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4332 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4333 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4334 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4335 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4337 "2879 lpfc_link_speed attribute cannot be set " 4338 "to %d. Speed is not supported by this port.\n", 4339 val); 4340 return -EINVAL; 4341 } 4342 if (val >= LPFC_USER_LINK_SPEED_16G && 4343 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4345 "3112 lpfc_link_speed attribute cannot be set " 4346 "to %d. Speed is not supported in loop mode.\n", 4347 val); 4348 return -EINVAL; 4349 } 4350 4351 switch (val) { 4352 case LPFC_USER_LINK_SPEED_AUTO: 4353 case LPFC_USER_LINK_SPEED_1G: 4354 case LPFC_USER_LINK_SPEED_2G: 4355 case LPFC_USER_LINK_SPEED_4G: 4356 case LPFC_USER_LINK_SPEED_8G: 4357 case LPFC_USER_LINK_SPEED_16G: 4358 case LPFC_USER_LINK_SPEED_32G: 4359 case LPFC_USER_LINK_SPEED_64G: 4360 prev_val = phba->cfg_link_speed; 4361 phba->cfg_link_speed = val; 4362 if (nolip) 4363 return strlen(buf); 4364 4365 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4366 if (err) { 4367 phba->cfg_link_speed = prev_val; 4368 return -EINVAL; 4369 } 4370 return strlen(buf); 4371 default: 4372 break; 4373 } 4374 4375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4376 "0469 lpfc_link_speed attribute cannot be set to %d, " 4377 "allowed values are [%s]\n", 4378 val, LPFC_LINK_SPEED_STRING); 4379 return -EINVAL; 4380 4381} 4382 4383static int lpfc_link_speed = 0; 4384module_param(lpfc_link_speed, int, S_IRUGO); 4385MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4386lpfc_param_show(link_speed) 4387 4388/** 4389 * lpfc_link_speed_init - Set the adapters link speed 4390 * @phba: lpfc_hba pointer. 4391 * @val: link speed value. 4392 * 4393 * Description: 4394 * If val is in a valid range then set the adapter's link speed field. 4395 * 4396 * Notes: 4397 * If the value is not in range log a kernel error message, clear the link 4398 * speed and return an error. 4399 * 4400 * Returns: 4401 * zero if val saved. 4402 * -EINVAL val out of range 4403 **/ 4404static int 4405lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4406{ 4407 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4409 "3111 lpfc_link_speed of %d cannot " 4410 "support loop mode, setting topology to default.\n", 4411 val); 4412 phba->cfg_topology = 0; 4413 } 4414 4415 switch (val) { 4416 case LPFC_USER_LINK_SPEED_AUTO: 4417 case LPFC_USER_LINK_SPEED_1G: 4418 case LPFC_USER_LINK_SPEED_2G: 4419 case LPFC_USER_LINK_SPEED_4G: 4420 case LPFC_USER_LINK_SPEED_8G: 4421 case LPFC_USER_LINK_SPEED_16G: 4422 case LPFC_USER_LINK_SPEED_32G: 4423 case LPFC_USER_LINK_SPEED_64G: 4424 phba->cfg_link_speed = val; 4425 return 0; 4426 default: 4427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4428 "0405 lpfc_link_speed attribute cannot " 4429 "be set to %d, allowed values are " 4430 "["LPFC_LINK_SPEED_STRING"]\n", val); 4431 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4432 return -EINVAL; 4433 } 4434} 4435 4436static DEVICE_ATTR_RW(lpfc_link_speed); 4437 4438/* 4439# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4440# 1 = aer supported and enabled (default) 4441# PCIe error reporting is always enabled by the PCI core, so this always 4442# shows 1. 4443# 4444# N.B. Parts of LPFC_ATTR open-coded since some of the underlying 4445# infrastructure (phba->cfg_aer_support) is gone. 4446*/ 4447static uint lpfc_aer_support = 1; 4448module_param(lpfc_aer_support, uint, S_IRUGO); 4449MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); 4450static ssize_t 4451lpfc_aer_support_show(struct device *dev, struct device_attribute *attr, 4452 char *buf) 4453{ 4454 return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_aer_support); 4455} 4456 4457/** 4458 * lpfc_aer_support_store - Set the adapter for aer support 4459 * 4460 * @dev: class device that is converted into a Scsi_host. 4461 * @attr: device attribute, not used. 4462 * @buf: containing enable or disable aer flag. 4463 * @count: unused variable. 4464 * 4465 * Description: 4466 * PCIe error reporting is enabled by the PCI core, so drivers don't need 4467 * to do anything. Retain this interface for backwards compatibility, 4468 * but do nothing. 4469 * 4470 * Returns: 4471 * length of the buf on success 4472 * -EINVAL if val out of range 4473 **/ 4474static ssize_t 4475lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4476 const char *buf, size_t count) 4477{ 4478 int val = 0; 4479 4480 if (!isdigit(buf[0])) 4481 return -EINVAL; 4482 if (sscanf(buf, "%i", &val) != 1) 4483 return -EINVAL; 4484 4485 dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n"); 4486 return strlen(buf); 4487} 4488 4489static DEVICE_ATTR_RW(lpfc_aer_support); 4490 4491/** 4492 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4493 * @dev: class device that is converted into a Scsi_host. 4494 * @attr: device attribute, not used. 4495 * @buf: containing flag 1 for aer cleanup state. 4496 * @count: unused variable. 4497 * 4498 * Description: 4499 * If the @buf contains 1, invokes the kernel AER helper routine 4500 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4501 * error status register. 4502 * 4503 * Notes: 4504 * 4505 * Returns: 4506 * -EINVAL if the buf does not contain 1 4507 * -EPERM if the OS cannot clear AER error status, i.e., when platform 4508 * firmware owns the AER Capability 4509 **/ 4510static ssize_t 4511lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4512 const char *buf, size_t count) 4513{ 4514 struct Scsi_Host *shost = class_to_shost(dev); 4515 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4516 struct lpfc_hba *phba = vport->phba; 4517 int val, rc = -1; 4518 4519 if (!isdigit(buf[0])) 4520 return -EINVAL; 4521 if (sscanf(buf, "%i", &val) != 1) 4522 return -EINVAL; 4523 if (val != 1) 4524 return -EINVAL; 4525 4526 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4527 4528 if (rc == 0) 4529 return strlen(buf); 4530 else 4531 return -EPERM; 4532} 4533 4534static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4535 lpfc_aer_cleanup_state); 4536 4537/** 4538 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4539 * 4540 * @dev: class device that is converted into a Scsi_host. 4541 * @attr: device attribute, not used. 4542 * @buf: containing the string the number of vfs to be enabled. 4543 * @count: unused variable. 4544 * 4545 * Description: 4546 * When this api is called either through user sysfs, the driver shall 4547 * try to enable or disable SR-IOV virtual functions according to the 4548 * following: 4549 * 4550 * If zero virtual function has been enabled to the physical function, 4551 * the driver shall invoke the pci enable virtual function api trying 4552 * to enable the virtual functions. If the nr_vfn provided is greater 4553 * than the maximum supported, the maximum virtual function number will 4554 * be used for invoking the api; otherwise, the nr_vfn provided shall 4555 * be used for invoking the api. If the api call returned success, the 4556 * actual number of virtual functions enabled will be set to the driver 4557 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4558 * cfg_sriov_nr_virtfn remains zero. 4559 * 4560 * If none-zero virtual functions have already been enabled to the 4561 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4562 * -EINVAL will be returned and the driver does nothing; 4563 * 4564 * If the nr_vfn provided is zero and none-zero virtual functions have 4565 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4566 * disabling virtual function api shall be invoded to disable all the 4567 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4568 * zero. Otherwise, if zero virtual function has been enabled, do 4569 * nothing. 4570 * 4571 * Returns: 4572 * length of the buf on success if val is in range the intended mode 4573 * is supported. 4574 * -EINVAL if val out of range or intended mode is not supported. 4575 **/ 4576static ssize_t 4577lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4578 const char *buf, size_t count) 4579{ 4580 struct Scsi_Host *shost = class_to_shost(dev); 4581 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4582 struct lpfc_hba *phba = vport->phba; 4583 struct pci_dev *pdev = phba->pcidev; 4584 int val = 0, rc = -EINVAL; 4585 4586 /* Sanity check on user data */ 4587 if (!isdigit(buf[0])) 4588 return -EINVAL; 4589 if (sscanf(buf, "%i", &val) != 1) 4590 return -EINVAL; 4591 if (val < 0) 4592 return -EINVAL; 4593 4594 /* Request disabling virtual functions */ 4595 if (val == 0) { 4596 if (phba->cfg_sriov_nr_virtfn > 0) { 4597 pci_disable_sriov(pdev); 4598 phba->cfg_sriov_nr_virtfn = 0; 4599 } 4600 return strlen(buf); 4601 } 4602 4603 /* Request enabling virtual functions */ 4604 if (phba->cfg_sriov_nr_virtfn > 0) { 4605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4606 "3018 There are %d virtual functions " 4607 "enabled on physical function.\n", 4608 phba->cfg_sriov_nr_virtfn); 4609 return -EEXIST; 4610 } 4611 4612 if (val <= LPFC_MAX_VFN_PER_PFN) 4613 phba->cfg_sriov_nr_virtfn = val; 4614 else { 4615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4616 "3019 Enabling %d virtual functions is not " 4617 "allowed.\n", val); 4618 return -EINVAL; 4619 } 4620 4621 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4622 if (rc) { 4623 phba->cfg_sriov_nr_virtfn = 0; 4624 rc = -EPERM; 4625 } else 4626 rc = strlen(buf); 4627 4628 return rc; 4629} 4630 4631LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4632 "Enable PCIe device SR-IOV virtual fn"); 4633 4634lpfc_param_show(sriov_nr_virtfn) 4635static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4636 4637/** 4638 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4639 * 4640 * @dev: class device that is converted into a Scsi_host. 4641 * @attr: device attribute, not used. 4642 * @buf: containing the string the number of vfs to be enabled. 4643 * @count: unused variable. 4644 * 4645 * Description: 4646 * 4647 * Returns: 4648 * length of the buf on success if val is in range the intended mode 4649 * is supported. 4650 * -EINVAL if val out of range or intended mode is not supported. 4651 **/ 4652static ssize_t 4653lpfc_request_firmware_upgrade_store(struct device *dev, 4654 struct device_attribute *attr, 4655 const char *buf, size_t count) 4656{ 4657 struct Scsi_Host *shost = class_to_shost(dev); 4658 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4659 struct lpfc_hba *phba = vport->phba; 4660 int val = 0, rc; 4661 4662 /* Sanity check on user data */ 4663 if (!isdigit(buf[0])) 4664 return -EINVAL; 4665 if (sscanf(buf, "%i", &val) != 1) 4666 return -EINVAL; 4667 if (val != 1) 4668 return -EINVAL; 4669 4670 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4671 if (rc) 4672 rc = -EPERM; 4673 else 4674 rc = strlen(buf); 4675 return rc; 4676} 4677 4678static int lpfc_req_fw_upgrade; 4679module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4680MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4681lpfc_param_show(request_firmware_upgrade) 4682 4683/** 4684 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4685 * @phba: lpfc_hba pointer. 4686 * @val: 0 or 1. 4687 * 4688 * Description: 4689 * Set the initial Linux generic firmware upgrade enable or disable flag. 4690 * 4691 * Returns: 4692 * zero if val saved. 4693 * -EINVAL val out of range 4694 **/ 4695static int 4696lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4697{ 4698 if (val >= 0 && val <= 1) { 4699 phba->cfg_request_firmware_upgrade = val; 4700 return 0; 4701 } 4702 return -EINVAL; 4703} 4704static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4705 lpfc_request_firmware_upgrade_show, 4706 lpfc_request_firmware_upgrade_store); 4707 4708/** 4709 * lpfc_force_rscn_store 4710 * 4711 * @dev: class device that is converted into a Scsi_host. 4712 * @attr: device attribute, not used. 4713 * @buf: unused string 4714 * @count: unused variable. 4715 * 4716 * Description: 4717 * Force the switch to send a RSCN to all other NPorts in our zone 4718 * If we are direct connect pt2pt, build the RSCN command ourself 4719 * and send to the other NPort. Not supported for private loop. 4720 * 4721 * Returns: 4722 * 0 - on success 4723 * -EIO - if command is not sent 4724 **/ 4725static ssize_t 4726lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4727 const char *buf, size_t count) 4728{ 4729 struct Scsi_Host *shost = class_to_shost(dev); 4730 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4731 int i; 4732 4733 i = lpfc_issue_els_rscn(vport, 0); 4734 if (i) 4735 return -EIO; 4736 return strlen(buf); 4737} 4738 4739/* 4740 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4741 * connected to the HBA. 4742 * 4743 * Value range is any ascii value 4744 */ 4745static int lpfc_force_rscn; 4746module_param(lpfc_force_rscn, int, 0644); 4747MODULE_PARM_DESC(lpfc_force_rscn, 4748 "Force an RSCN to be sent to all remote NPorts"); 4749lpfc_param_show(force_rscn) 4750 4751/** 4752 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4753 * @phba: lpfc_hba pointer. 4754 * @val: unused value. 4755 * 4756 * Returns: 4757 * zero if val saved. 4758 **/ 4759static int 4760lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4761{ 4762 return 0; 4763} 4764static DEVICE_ATTR_RW(lpfc_force_rscn); 4765 4766/** 4767 * lpfc_fcp_imax_store 4768 * 4769 * @dev: class device that is converted into a Scsi_host. 4770 * @attr: device attribute, not used. 4771 * @buf: string with the number of fast-path FCP interrupts per second. 4772 * @count: unused variable. 4773 * 4774 * Description: 4775 * If val is in a valid range [636,651042], then set the adapter's 4776 * maximum number of fast-path FCP interrupts per second. 4777 * 4778 * Returns: 4779 * length of the buf on success if val is in range the intended mode 4780 * is supported. 4781 * -EINVAL if val out of range or intended mode is not supported. 4782 **/ 4783static ssize_t 4784lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4785 const char *buf, size_t count) 4786{ 4787 struct Scsi_Host *shost = class_to_shost(dev); 4788 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4789 struct lpfc_hba *phba = vport->phba; 4790 struct lpfc_eq_intr_info *eqi; 4791 uint32_t usdelay; 4792 int val = 0, i; 4793 4794 /* fcp_imax is only valid for SLI4 */ 4795 if (phba->sli_rev != LPFC_SLI_REV4) 4796 return -EINVAL; 4797 4798 /* Sanity check on user data */ 4799 if (!isdigit(buf[0])) 4800 return -EINVAL; 4801 if (sscanf(buf, "%i", &val) != 1) 4802 return -EINVAL; 4803 4804 /* 4805 * Value range for the HBA is [5000,5000000] 4806 * The value for each EQ depends on how many EQs are configured. 4807 * Allow value == 0 4808 */ 4809 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4810 return -EINVAL; 4811 4812 phba->cfg_auto_imax = (val) ? 0 : 1; 4813 if (phba->cfg_fcp_imax && !val) { 4814 queue_delayed_work(phba->wq, &phba->eq_delay_work, 4815 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 4816 4817 for_each_present_cpu(i) { 4818 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 4819 eqi->icnt = 0; 4820 } 4821 } 4822 4823 phba->cfg_fcp_imax = (uint32_t)val; 4824 4825 if (phba->cfg_fcp_imax) 4826 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 4827 else 4828 usdelay = 0; 4829 4830 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4831 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4832 usdelay); 4833 4834 return strlen(buf); 4835} 4836 4837/* 4838# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4839# for the HBA. 4840# 4841# Value range is [5,000 to 5,000,000]. Default value is 50,000. 4842*/ 4843static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4844module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4845MODULE_PARM_DESC(lpfc_fcp_imax, 4846 "Set the maximum number of FCP interrupts per second per HBA"); 4847lpfc_param_show(fcp_imax) 4848 4849/** 4850 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4851 * @phba: lpfc_hba pointer. 4852 * @val: link speed value. 4853 * 4854 * Description: 4855 * If val is in a valid range [636,651042], then initialize the adapter's 4856 * maximum number of fast-path FCP interrupts per second. 4857 * 4858 * Returns: 4859 * zero if val saved. 4860 * -EINVAL val out of range 4861 **/ 4862static int 4863lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4864{ 4865 if (phba->sli_rev != LPFC_SLI_REV4) { 4866 phba->cfg_fcp_imax = 0; 4867 return 0; 4868 } 4869 4870 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4871 (val == 0)) { 4872 phba->cfg_fcp_imax = val; 4873 return 0; 4874 } 4875 4876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4877 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4878 val); 4879 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4880 4881 return 0; 4882} 4883 4884static DEVICE_ATTR_RW(lpfc_fcp_imax); 4885 4886/** 4887 * lpfc_cq_max_proc_limit_store 4888 * 4889 * @dev: class device that is converted into a Scsi_host. 4890 * @attr: device attribute, not used. 4891 * @buf: string with the cq max processing limit of cqes 4892 * @count: unused variable. 4893 * 4894 * Description: 4895 * If val is in a valid range, then set value on each cq 4896 * 4897 * Returns: 4898 * The length of the buf: if successful 4899 * -ERANGE: if val is not in the valid range 4900 * -EINVAL: if bad value format or intended mode is not supported. 4901 **/ 4902static ssize_t 4903lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 4904 const char *buf, size_t count) 4905{ 4906 struct Scsi_Host *shost = class_to_shost(dev); 4907 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4908 struct lpfc_hba *phba = vport->phba; 4909 struct lpfc_queue *eq, *cq; 4910 unsigned long val; 4911 int i; 4912 4913 /* cq_max_proc_limit is only valid for SLI4 */ 4914 if (phba->sli_rev != LPFC_SLI_REV4) 4915 return -EINVAL; 4916 4917 /* Sanity check on user data */ 4918 if (!isdigit(buf[0])) 4919 return -EINVAL; 4920 if (kstrtoul(buf, 0, &val)) 4921 return -EINVAL; 4922 4923 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 4924 return -ERANGE; 4925 4926 phba->cfg_cq_max_proc_limit = (uint32_t)val; 4927 4928 /* set the values on the cq's */ 4929 for (i = 0; i < phba->cfg_irq_chann; i++) { 4930 /* Get the EQ corresponding to the IRQ vector */ 4931 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 4932 if (!eq) 4933 continue; 4934 4935 list_for_each_entry(cq, &eq->child_list, list) 4936 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 4937 cq->entry_count); 4938 } 4939 4940 return strlen(buf); 4941} 4942 4943/* 4944 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 4945 * itteration of CQ processing. 4946 */ 4947static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4948module_param(lpfc_cq_max_proc_limit, int, 0644); 4949MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 4950 "Set the maximum number CQEs processed in an iteration of " 4951 "CQ processing"); 4952lpfc_param_show(cq_max_proc_limit) 4953 4954/* 4955 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 4956 * single handler call which should request a polled completion rather 4957 * than re-enabling interrupts. 4958 */ 4959LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 4960 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 4961 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 4962 "CQE Processing Threshold to enable Polling"); 4963 4964/** 4965 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 4966 * @phba: lpfc_hba pointer. 4967 * @val: entry limit 4968 * 4969 * Description: 4970 * If val is in a valid range, then initialize the adapter's maximum 4971 * value. 4972 * 4973 * Returns: 4974 * Always returns 0 for success, even if value not always set to 4975 * requested value. If value out of range or not supported, will fall 4976 * back to default. 4977 **/ 4978static int 4979lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 4980{ 4981 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4982 4983 if (phba->sli_rev != LPFC_SLI_REV4) 4984 return 0; 4985 4986 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 4987 phba->cfg_cq_max_proc_limit = val; 4988 return 0; 4989 } 4990 4991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4992 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 4993 "default\n", 4994 phba->cfg_cq_max_proc_limit); 4995 4996 return 0; 4997} 4998 4999static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5000 5001/** 5002 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5003 * @dev: class converted to a Scsi_host structure. 5004 * @attr: device attribute, not used. 5005 * @buf: on return contains text describing the state of the link. 5006 * 5007 * Returns: size of formatted string. 5008 **/ 5009static ssize_t 5010lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5011 char *buf) 5012{ 5013 struct Scsi_Host *shost = class_to_shost(dev); 5014 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5015 struct lpfc_hba *phba = vport->phba; 5016 struct lpfc_vector_map_info *cpup; 5017 int len = 0; 5018 5019 if ((phba->sli_rev != LPFC_SLI_REV4) || 5020 (phba->intr_type != MSIX)) 5021 return len; 5022 5023 switch (phba->cfg_fcp_cpu_map) { 5024 case 0: 5025 len += scnprintf(buf + len, PAGE_SIZE-len, 5026 "fcp_cpu_map: No mapping (%d)\n", 5027 phba->cfg_fcp_cpu_map); 5028 return len; 5029 case 1: 5030 len += scnprintf(buf + len, PAGE_SIZE-len, 5031 "fcp_cpu_map: HBA centric mapping (%d): " 5032 "%d of %d CPUs online from %d possible CPUs\n", 5033 phba->cfg_fcp_cpu_map, num_online_cpus(), 5034 num_present_cpus(), 5035 phba->sli4_hba.num_possible_cpu); 5036 break; 5037 } 5038 5039 while (phba->sli4_hba.curr_disp_cpu < 5040 phba->sli4_hba.num_possible_cpu) { 5041 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5042 5043 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5044 len += scnprintf(buf + len, PAGE_SIZE - len, 5045 "CPU %02d not present\n", 5046 phba->sli4_hba.curr_disp_cpu); 5047 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5048 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5049 len += scnprintf( 5050 buf + len, PAGE_SIZE - len, 5051 "CPU %02d hdwq None " 5052 "physid %d coreid %d ht %d ua %d\n", 5053 phba->sli4_hba.curr_disp_cpu, 5054 cpup->phys_id, cpup->core_id, 5055 (cpup->flag & LPFC_CPU_MAP_HYPER), 5056 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5057 else 5058 len += scnprintf( 5059 buf + len, PAGE_SIZE - len, 5060 "CPU %02d EQ None hdwq %04d " 5061 "physid %d coreid %d ht %d ua %d\n", 5062 phba->sli4_hba.curr_disp_cpu, 5063 cpup->hdwq, cpup->phys_id, 5064 cpup->core_id, 5065 (cpup->flag & LPFC_CPU_MAP_HYPER), 5066 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5067 } else { 5068 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5069 len += scnprintf( 5070 buf + len, PAGE_SIZE - len, 5071 "CPU %02d hdwq None " 5072 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5073 phba->sli4_hba.curr_disp_cpu, 5074 cpup->phys_id, 5075 cpup->core_id, 5076 (cpup->flag & LPFC_CPU_MAP_HYPER), 5077 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5078 lpfc_get_irq(cpup->eq)); 5079 else 5080 len += scnprintf( 5081 buf + len, PAGE_SIZE - len, 5082 "CPU %02d EQ %04d hdwq %04d " 5083 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5084 phba->sli4_hba.curr_disp_cpu, 5085 cpup->eq, cpup->hdwq, cpup->phys_id, 5086 cpup->core_id, 5087 (cpup->flag & LPFC_CPU_MAP_HYPER), 5088 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5089 lpfc_get_irq(cpup->eq)); 5090 } 5091 5092 phba->sli4_hba.curr_disp_cpu++; 5093 5094 /* display max number of CPUs keeping some margin */ 5095 if (phba->sli4_hba.curr_disp_cpu < 5096 phba->sli4_hba.num_possible_cpu && 5097 (len >= (PAGE_SIZE - 64))) { 5098 len += scnprintf(buf + len, 5099 PAGE_SIZE - len, "more...\n"); 5100 break; 5101 } 5102 } 5103 5104 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5105 phba->sli4_hba.curr_disp_cpu = 0; 5106 5107 return len; 5108} 5109 5110/** 5111 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5112 * @dev: class device that is converted into a Scsi_host. 5113 * @attr: device attribute, not used. 5114 * @buf: one or more lpfc_polling_flags values. 5115 * @count: not used. 5116 * 5117 * Returns: 5118 * -EINVAL - Not implemented yet. 5119 **/ 5120static ssize_t 5121lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5122 const char *buf, size_t count) 5123{ 5124 return -EINVAL; 5125} 5126 5127/* 5128# lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5129# for the HBA. 5130# 5131# Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5132# 0 - Do not affinitze IRQ vectors 5133# 1 - Affintize HBA vectors with respect to each HBA 5134# (start with CPU0 for each HBA) 5135# This also defines how Hardware Queues are mapped to specific CPUs. 5136*/ 5137static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5138module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5139MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5140 "Defines how to map CPUs to IRQ vectors per HBA"); 5141 5142/** 5143 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5144 * @phba: lpfc_hba pointer. 5145 * @val: link speed value. 5146 * 5147 * Description: 5148 * If val is in a valid range [0-2], then affinitze the adapter's 5149 * MSIX vectors. 5150 * 5151 * Returns: 5152 * zero if val saved. 5153 * -EINVAL val out of range 5154 **/ 5155static int 5156lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5157{ 5158 if (phba->sli_rev != LPFC_SLI_REV4) { 5159 phba->cfg_fcp_cpu_map = 0; 5160 return 0; 5161 } 5162 5163 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5164 phba->cfg_fcp_cpu_map = val; 5165 return 0; 5166 } 5167 5168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5169 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5170 "default\n", val); 5171 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5172 5173 return 0; 5174} 5175 5176static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5177 5178/* 5179# lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5180# Value range is [2,3]. Default value is 3. 5181*/ 5182LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5183 "Select Fibre Channel class of service for FCP sequences"); 5184 5185/* 5186# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5187# is [0,1]. Default value is 1. 5188*/ 5189LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5190 "Use ADISC on rediscovery to authenticate FCP devices"); 5191 5192/* 5193# lpfc_first_burst_size: First burst size to use on the NPorts 5194# that support first burst. 5195# Value range is [0,65536]. Default value is 0. 5196*/ 5197LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5198 "First burst size for Targets that support first burst"); 5199 5200/* 5201* lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5202* When the driver is configured as an NVME target, this value is 5203* communicated to the NVME initiator in the PRLI response. It is 5204* used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5205* parameters are set and the target is sending the PRLI RSP. 5206* Parameter supported on physical port only - no NPIV support. 5207* Value range is [0,65536]. Default value is 0. 5208*/ 5209LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5210 "NVME Target mode first burst size in 512B increments."); 5211 5212/* 5213 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5214 * For the Initiator (I), enabling this parameter means that an NVMET 5215 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5216 * processed by the initiator for subsequent NVME FCP IO. 5217 * Currently, this feature is not supported on the NVME target 5218 * Value range is [0,1]. Default value is 0 (disabled). 5219 */ 5220LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5221 "Enable First Burst feature for NVME Initiator."); 5222 5223/* 5224# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5225# depth. Default value is 0. When the value of this parameter is zero the 5226# SCSI command completion time is not used for controlling I/O queue depth. When 5227# the parameter is set to a non-zero value, the I/O queue depth is controlled 5228# to limit the I/O completion time to the parameter value. 5229# The value is set in milliseconds. 5230*/ 5231LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5232 "Use command completion time to control queue depth"); 5233 5234lpfc_vport_param_show(max_scsicmpl_time); 5235static int 5236lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5237{ 5238 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5239 struct lpfc_nodelist *ndlp, *next_ndlp; 5240 5241 if (val == vport->cfg_max_scsicmpl_time) 5242 return 0; 5243 if ((val < 0) || (val > 60000)) 5244 return -EINVAL; 5245 vport->cfg_max_scsicmpl_time = val; 5246 5247 spin_lock_irq(shost->host_lock); 5248 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5249 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5250 continue; 5251 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5252 } 5253 spin_unlock_irq(shost->host_lock); 5254 return 0; 5255} 5256lpfc_vport_param_store(max_scsicmpl_time); 5257static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5258 5259/* 5260# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5261# range is [0,1]. Default value is 0. 5262*/ 5263LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5264 5265/* 5266# lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5267# range is [0,1]. Default value is 1. 5268*/ 5269LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5270 5271/* 5272 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5273 * range is [0,1]. Default value is 0. 5274 * For [0], FCP commands are issued to Work Queues based on upper layer 5275 * hardware queue index. 5276 * For [1], FCP commands are issued to a Work Queue associated with the 5277 * current CPU. 5278 * 5279 * LPFC_FCP_SCHED_BY_HDWQ == 0 5280 * LPFC_FCP_SCHED_BY_CPU == 1 5281 * 5282 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5283 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5284 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5285 * through WQs will be used. 5286 */ 5287LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5288 LPFC_FCP_SCHED_BY_HDWQ, 5289 LPFC_FCP_SCHED_BY_CPU, 5290 "Determine scheduling algorithm for " 5291 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5292 5293/* 5294 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5295 * range is [0,1]. Default value is 0. 5296 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5297 * For [1], GID_PT is used for NameServer queries after RSCN 5298 * 5299 */ 5300LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5301 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5302 "Determine algorithm NameServer queries after RSCN " 5303 "[0] - GID_FT, [1] - GID_PT"); 5304 5305/* 5306# lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5307# range is [0,1]. Default value is 0. 5308# For [0], bus reset issues target reset to ALL devices 5309# For [1], bus reset issues target reset to non-FCP2 devices 5310*/ 5311LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5312 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5313 5314 5315/* 5316# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5317# cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5318# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5319# is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5320# cr_delay is set to 0. 5321*/ 5322LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5323 "interrupt response is generated"); 5324 5325LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5326 "interrupt response is generated"); 5327 5328/* 5329# lpfc_multi_ring_support: Determines how many rings to spread available 5330# cmd/rsp IOCB entries across. 5331# Value range is [1,2]. Default value is 1. 5332*/ 5333LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5334 "SLI rings to spread IOCB entries across"); 5335 5336/* 5337# lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5338# identifies what rctl value to configure the additional ring for. 5339# Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5340*/ 5341LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5342 255, "Identifies RCTL for additional ring configuration"); 5343 5344/* 5345# lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5346# identifies what type value to configure the additional ring for. 5347# Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5348*/ 5349LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5350 255, "Identifies TYPE for additional ring configuration"); 5351 5352/* 5353# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5354# 0 = SmartSAN functionality disabled (default) 5355# 1 = SmartSAN functionality enabled 5356# This parameter will override the value of lpfc_fdmi_on module parameter. 5357# Value range is [0,1]. Default value is 0. 5358*/ 5359LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5360 5361/* 5362# lpfc_fdmi_on: Controls FDMI support. 5363# 0 No FDMI support 5364# 1 Traditional FDMI support (default) 5365# Traditional FDMI support means the driver will assume FDMI-2 support; 5366# however, if that fails, it will fallback to FDMI-1. 5367# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5368# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5369# lpfc_fdmi_on. 5370# Value range [0,1]. Default value is 1. 5371*/ 5372LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5373 5374/* 5375# Specifies the maximum number of ELS cmds we can have outstanding (for 5376# discovery). Value range is [1,64]. Default value = 32. 5377*/ 5378LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5379 "during discovery"); 5380 5381/* 5382# lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5383# will be scanned by the SCSI midlayer when sequential scanning is 5384# used; and is also the highest LUN ID allowed when the SCSI midlayer 5385# parses REPORT_LUN responses. The lpfc driver has no LUN count or 5386# LUN ID limit, but the SCSI midlayer requires this field for the uses 5387# above. The lpfc driver limits the default value to 255 for two reasons. 5388# As it bounds the sequential scan loop, scanning for thousands of luns 5389# on a target can take minutes of wall clock time. Additionally, 5390# there are FC targets, such as JBODs, that only recognize 8-bits of 5391# LUN ID. When they receive a value greater than 8 bits, they chop off 5392# the high order bits. In other words, they see LUN IDs 0, 256, 512, 5393# and so on all as LUN ID 0. This causes the linux kernel, which sees 5394# valid responses at each of the LUN IDs, to believe there are multiple 5395# devices present, when in fact, there is only 1. 5396# A customer that is aware of their target behaviors, and the results as 5397# indicated above, is welcome to increase the lpfc_max_luns value. 5398# As mentioned, this value is not used by the lpfc driver, only the 5399# SCSI midlayer. 5400# Value range is [0,65535]. Default value is 255. 5401# NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5402*/ 5403LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5404 5405/* 5406# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5407# Value range is [1,255], default value is 10. 5408*/ 5409LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5410 "Milliseconds driver will wait between polling FCP ring"); 5411 5412/* 5413# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5414# to complete in seconds. Value range is [5,180], default value is 60. 5415*/ 5416LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5417 "Maximum time to wait for task management commands to complete"); 5418/* 5419# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5420# support this feature 5421# 0 = MSI disabled 5422# 1 = MSI enabled 5423# 2 = MSI-X enabled (default) 5424# Value range is [0,2]. Default value is 2. 5425*/ 5426LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5427 "MSI-X (2), if possible"); 5428 5429/* 5430 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5431 * 5432 * 0 = NVME OAS disabled 5433 * 1 = NVME OAS enabled 5434 * 5435 * Value range is [0,1]. Default value is 0. 5436 */ 5437LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5438 "Use OAS bit on NVME IOs"); 5439 5440/* 5441 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5442 * 5443 * 0 = Put NVME Command in SGL 5444 * 1 = Embed NVME Command in WQE (unless G7) 5445 * 2 = Embed NVME Command in WQE (force) 5446 * 5447 * Value range is [0,2]. Default value is 1. 5448 */ 5449LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5450 "Embed NVME Command in WQE"); 5451 5452/* 5453 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5454 * the driver will advertise it supports to the SCSI layer. 5455 * 5456 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5457 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5458 * 5459 * Value range is [0,256]. Default value is 8. 5460 */ 5461LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5462 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5463 "Set the number of SCSI Queues advertised"); 5464 5465/* 5466 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5467 * will advertise it supports to the NVME and SCSI layers. This also 5468 * will map to the number of CQ/WQ pairs the driver will create. 5469 * 5470 * The NVME Layer will try to create this many, plus 1 administrative 5471 * hardware queue. The administrative queue will always map to WQ 0 5472 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5473 * 5474 * 0 = Configure the number of hdw queues to the number of active CPUs. 5475 * 1,256 = Manually specify how many hdw queues to use. 5476 * 5477 * Value range is [0,256]. Default value is 0. 5478 */ 5479LPFC_ATTR_R(hdw_queue, 5480 LPFC_HBA_HDWQ_DEF, 5481 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5482 "Set the number of I/O Hardware Queues"); 5483 5484#if IS_ENABLED(CONFIG_X86) 5485/** 5486 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5487 * irq_chann_mode 5488 * @phba: Pointer to HBA context object. 5489 **/ 5490static void 5491lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5492{ 5493 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5494 const struct cpumask *sibling_mask; 5495 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5496 5497 cpumask_clear(aff_mask); 5498 5499 if (phba->irq_chann_mode == NUMA_MODE) { 5500 /* Check if we're a NUMA architecture */ 5501 numa_node = dev_to_node(&phba->pcidev->dev); 5502 if (numa_node == NUMA_NO_NODE) { 5503 phba->irq_chann_mode = NORMAL_MODE; 5504 return; 5505 } 5506 } 5507 5508 for_each_possible_cpu(cpu) { 5509 switch (phba->irq_chann_mode) { 5510 case NUMA_MODE: 5511 if (cpu_to_node(cpu) == numa_node) 5512 cpumask_set_cpu(cpu, aff_mask); 5513 break; 5514 case NHT_MODE: 5515 sibling_mask = topology_sibling_cpumask(cpu); 5516 first_cpu = cpumask_first(sibling_mask); 5517 if (first_cpu < nr_cpu_ids) 5518 cpumask_set_cpu(first_cpu, aff_mask); 5519 break; 5520 default: 5521 break; 5522 } 5523 } 5524} 5525#endif 5526 5527static void 5528lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5529{ 5530#if IS_ENABLED(CONFIG_X86) 5531 switch (boot_cpu_data.x86_vendor) { 5532 case X86_VENDOR_AMD: 5533 /* If AMD architecture, then default is NUMA_MODE */ 5534 phba->irq_chann_mode = NUMA_MODE; 5535 break; 5536 case X86_VENDOR_INTEL: 5537 /* If Intel architecture, then default is no hyperthread mode */ 5538 phba->irq_chann_mode = NHT_MODE; 5539 break; 5540 default: 5541 phba->irq_chann_mode = NORMAL_MODE; 5542 break; 5543 } 5544 lpfc_cpumask_irq_mode_init(phba); 5545#else 5546 phba->irq_chann_mode = NORMAL_MODE; 5547#endif 5548} 5549 5550/* 5551 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5552 * for Hardware Queues to utilize. This also will map to the number 5553 * of EQ / MSI-X vectors the driver will create. This should never be 5554 * more than the number of Hardware Queues 5555 * 5556 * 0 = Configure number of IRQ Channels to: 5557 * if AMD architecture, number of CPUs on HBA's NUMA node 5558 * if Intel architecture, number of physical CPUs. 5559 * otherwise, number of active CPUs. 5560 * [1,256] = Manually specify how many IRQ Channels to use. 5561 * 5562 * Value range is [0,256]. Default value is [0]. 5563 */ 5564static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5565module_param(lpfc_irq_chann, uint, 0444); 5566MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5567 5568/* lpfc_irq_chann_init - Set the hba irq_chann initial value 5569 * @phba: lpfc_hba pointer. 5570 * @val: contains the initial value 5571 * 5572 * Description: 5573 * Validates the initial value is within range and assigns it to the 5574 * adapter. If not in range, an error message is posted and the 5575 * default value is assigned. 5576 * 5577 * Returns: 5578 * zero if value is in range and is set 5579 * -EINVAL if value was out of range 5580 **/ 5581static int 5582lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5583{ 5584 const struct cpumask *aff_mask; 5585 5586 if (phba->cfg_use_msi != 2) { 5587 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5588 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5589 phba->cfg_use_msi); 5590 phba->irq_chann_mode = NORMAL_MODE; 5591 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5592 return 0; 5593 } 5594 5595 /* Check if default setting was passed */ 5596 if (val == LPFC_IRQ_CHANN_DEF && 5597 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5598 phba->sli_rev == LPFC_SLI_REV4) 5599 lpfc_assign_default_irq_chann(phba); 5600 5601 if (phba->irq_chann_mode != NORMAL_MODE) { 5602 aff_mask = &phba->sli4_hba.irq_aff_mask; 5603 5604 if (cpumask_empty(aff_mask)) { 5605 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5606 "8533 Could not identify CPUS for " 5607 "mode %d, ignoring\n", 5608 phba->irq_chann_mode); 5609 phba->irq_chann_mode = NORMAL_MODE; 5610 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5611 } else { 5612 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5613 5614 /* If no hyperthread mode, then set hdwq count to 5615 * aff_mask weight as well 5616 */ 5617 if (phba->irq_chann_mode == NHT_MODE) 5618 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5619 5620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5621 "8543 lpfc_irq_chann set to %u " 5622 "(mode: %d)\n", phba->cfg_irq_chann, 5623 phba->irq_chann_mode); 5624 } 5625 } else { 5626 if (val > LPFC_IRQ_CHANN_MAX) { 5627 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5628 "8545 lpfc_irq_chann attribute cannot " 5629 "be set to %u, allowed range is " 5630 "[%u,%u]\n", 5631 val, 5632 LPFC_IRQ_CHANN_MIN, 5633 LPFC_IRQ_CHANN_MAX); 5634 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5635 return -EINVAL; 5636 } 5637 if (phba->sli_rev == LPFC_SLI_REV4) { 5638 phba->cfg_irq_chann = val; 5639 } else { 5640 phba->cfg_irq_chann = 2; 5641 phba->cfg_hdw_queue = 1; 5642 } 5643 } 5644 5645 return 0; 5646} 5647 5648/** 5649 * lpfc_irq_chann_show - Display value of irq_chann 5650 * @dev: class converted to a Scsi_host structure. 5651 * @attr: device attribute, not used. 5652 * @buf: on return contains a string with the list sizes 5653 * 5654 * Returns: size of formatted string. 5655 **/ 5656static ssize_t 5657lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5658 char *buf) 5659{ 5660 struct Scsi_Host *shost = class_to_shost(dev); 5661 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5662 struct lpfc_hba *phba = vport->phba; 5663 5664 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5665} 5666 5667static DEVICE_ATTR_RO(lpfc_irq_chann); 5668 5669/* 5670# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5671# 0 = HBA resets disabled 5672# 1 = HBA resets enabled (default) 5673# 2 = HBA reset via PCI bus reset enabled 5674# Value range is [0,2]. Default value is 1. 5675*/ 5676LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5677 5678/* 5679# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5680# 0 = HBA Heartbeat disabled 5681# 1 = HBA Heartbeat enabled (default) 5682# Value range is [0,1]. Default value is 1. 5683*/ 5684LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5685 5686/* 5687# lpfc_EnableXLane: Enable Express Lane Feature 5688# 0x0 Express Lane Feature disabled 5689# 0x1 Express Lane Feature enabled 5690# Value range is [0,1]. Default value is 0. 5691*/ 5692LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5693 5694/* 5695# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5696# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5697# Value range is [0x0,0x7f]. Default value is 0 5698*/ 5699LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5700 5701/* 5702# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5703# 0 = BlockGuard disabled (default) 5704# 1 = BlockGuard enabled 5705# Value range is [0,1]. Default value is 0. 5706*/ 5707LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5708 5709/* 5710# lpfc_prot_mask: 5711# - Bit mask of host protection capabilities used to register with the 5712# SCSI mid-layer 5713# - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5714# - Allows you to ultimately specify which profiles to use 5715# - Default will result in registering capabilities for all profiles. 5716# - SHOST_DIF_TYPE1_PROTECTION 1 5717# HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5718# - SHOST_DIX_TYPE0_PROTECTION 8 5719# HBA supports DIX Type 0: Host to HBA protection only 5720# - SHOST_DIX_TYPE1_PROTECTION 16 5721# HBA supports DIX Type 1: Host to HBA Type 1 protection 5722# 5723*/ 5724LPFC_ATTR(prot_mask, 5725 (SHOST_DIF_TYPE1_PROTECTION | 5726 SHOST_DIX_TYPE0_PROTECTION | 5727 SHOST_DIX_TYPE1_PROTECTION), 5728 0, 5729 (SHOST_DIF_TYPE1_PROTECTION | 5730 SHOST_DIX_TYPE0_PROTECTION | 5731 SHOST_DIX_TYPE1_PROTECTION), 5732 "T10-DIF host protection capabilities mask"); 5733 5734/* 5735# lpfc_prot_guard: 5736# - Bit mask of protection guard types to register with the SCSI mid-layer 5737# - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5738# - Allows you to ultimately specify which profiles to use 5739# - Default will result in registering capabilities for all guard types 5740# 5741*/ 5742LPFC_ATTR(prot_guard, 5743 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5744 "T10-DIF host protection guard type"); 5745 5746/* 5747 * Delay initial NPort discovery when Clean Address bit is cleared in 5748 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5749 * This parameter can have value 0 or 1. 5750 * When this parameter is set to 0, no delay is added to the initial 5751 * discovery. 5752 * When this parameter is set to non-zero value, initial Nport discovery is 5753 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5754 * accept and FCID/Fabric name/Fabric portname is changed. 5755 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5756 * when Clean Address bit is cleared in FLOGI/FDISC 5757 * accept and FCID/Fabric name/Fabric portname is changed. 5758 * Default value is 0. 5759 */ 5760LPFC_ATTR(delay_discovery, 0, 0, 1, 5761 "Delay NPort discovery when Clean Address bit is cleared."); 5762 5763/* 5764 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5765 * This value can be set to values between 64 and 4096. The default value 5766 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5767 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5768 * Because of the additional overhead involved in setting up T10-DIF, 5769 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5770 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5771 */ 5772static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5773module_param(lpfc_sg_seg_cnt, uint, 0444); 5774MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5775 5776/** 5777 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5778 * configured for the adapter 5779 * @dev: class converted to a Scsi_host structure. 5780 * @attr: device attribute, not used. 5781 * @buf: on return contains a string with the list sizes 5782 * 5783 * Returns: size of formatted string. 5784 **/ 5785static ssize_t 5786lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5787 char *buf) 5788{ 5789 struct Scsi_Host *shost = class_to_shost(dev); 5790 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5791 struct lpfc_hba *phba = vport->phba; 5792 int len; 5793 5794 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5795 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5796 5797 len += scnprintf(buf + len, PAGE_SIZE - len, 5798 "Cfg: %d SCSI: %d NVME: %d\n", 5799 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5800 phba->cfg_nvme_seg_cnt); 5801 return len; 5802} 5803 5804static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5805 5806/** 5807 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5808 * @phba: lpfc_hba pointer. 5809 * @val: contains the initial value 5810 * 5811 * Description: 5812 * Validates the initial value is within range and assigns it to the 5813 * adapter. If not in range, an error message is posted and the 5814 * default value is assigned. 5815 * 5816 * Returns: 5817 * zero if value is in range and is set 5818 * -EINVAL if value was out of range 5819 **/ 5820static int 5821lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5822{ 5823 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5824 phba->cfg_sg_seg_cnt = val; 5825 return 0; 5826 } 5827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5828 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 5829 "allowed range is [%d, %d]\n", 5830 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5831 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5832 return -EINVAL; 5833} 5834 5835/* 5836 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5837 * 0 = MDS Diagnostics disabled (default) 5838 * 1 = MDS Diagnostics enabled 5839 * Value range is [0,1]. Default value is 0. 5840 */ 5841LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5842 5843/* 5844 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5845 * 0 = Disable firmware logging (default) 5846 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 5847 * Value range [0..4]. Default value is 0 5848 */ 5849LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 5850lpfc_param_show(ras_fwlog_buffsize); 5851 5852static ssize_t 5853lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 5854{ 5855 int ret = 0; 5856 enum ras_state state; 5857 5858 if (!lpfc_rangecheck(val, 0, 4)) 5859 return -EINVAL; 5860 5861 if (phba->cfg_ras_fwlog_buffsize == val) 5862 return 0; 5863 5864 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 5865 return -EINVAL; 5866 5867 spin_lock_irq(&phba->hbalock); 5868 state = phba->ras_fwlog.state; 5869 spin_unlock_irq(&phba->hbalock); 5870 5871 if (state == REG_INPROGRESS) { 5872 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 5873 "registration is in progress\n"); 5874 return -EBUSY; 5875 } 5876 5877 /* For disable logging: stop the logs and free the DMA. 5878 * For ras_fwlog_buffsize size change we still need to free and 5879 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 5880 */ 5881 phba->cfg_ras_fwlog_buffsize = val; 5882 if (state == ACTIVE) { 5883 lpfc_ras_stop_fwlog(phba); 5884 lpfc_sli4_ras_dma_free(phba); 5885 } 5886 5887 lpfc_sli4_ras_init(phba); 5888 if (phba->ras_fwlog.ras_enabled) 5889 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 5890 LPFC_RAS_ENABLE_LOGGING); 5891 return ret; 5892} 5893 5894lpfc_param_store(ras_fwlog_buffsize); 5895static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 5896 5897/* 5898 * lpfc_ras_fwlog_level: Firmware logging verbosity level 5899 * Valid only if firmware logging is enabled 5900 * 0(Least Verbosity) 4 (most verbosity) 5901 * Value range is [0..4]. Default value is 0 5902 */ 5903LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 5904 5905/* 5906 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 5907 * Default function which has RAS support : 0 5908 * Value Range is [0..7]. 5909 * FW logging is a global action and enablement is via a specific 5910 * port. 5911 */ 5912LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 5913 5914/* 5915 * lpfc_enable_bbcr: Enable BB Credit Recovery 5916 * 0 = BB Credit Recovery disabled 5917 * 1 = BB Credit Recovery enabled (default) 5918 * Value range is [0,1]. Default value is 1. 5919 */ 5920LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 5921 5922/* Signaling module parameters */ 5923int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 5924module_param(lpfc_fabric_cgn_frequency, int, 0444); 5925MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 5926 5927unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 5928module_param(lpfc_acqe_cgn_frequency, byte, 0444); 5929MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 5930 5931int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 5932module_param(lpfc_use_cgn_signal, int, 0444); 5933MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 5934 5935/* 5936 * lpfc_enable_dpp: Enable DPP on G7 5937 * 0 = DPP on G7 disabled 5938 * 1 = DPP on G7 enabled (default) 5939 * Value range is [0,1]. Default value is 1. 5940 */ 5941LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 5942 5943/* 5944 * lpfc_enable_mi: Enable FDMI MIB 5945 * 0 = disabled 5946 * 1 = enabled (default) 5947 * Value range is [0,1]. 5948 */ 5949LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 5950 5951/* 5952 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 5953 * either vmid_app_header or vmid_priority_tagging is enabled. 5954 * 4 - 255 = vmid support enabled for 4-255 VMs 5955 * Value range is [4,255]. 5956 */ 5957LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 5958 "Maximum number of VMs supported"); 5959 5960/* 5961 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 5962 * 0 = Timeout is disabled 5963 * Value range is [0,24]. 5964 */ 5965LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 5966 "Inactivity timeout in hours"); 5967 5968/* 5969 * lpfc_vmid_app_header: Enable App Header VMID support 5970 * 0 = Support is disabled (default) 5971 * 1 = Support is enabled 5972 * Value range is [0,1]. 5973 */ 5974LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 5975 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 5976 "Enable App Header VMID support"); 5977 5978/* 5979 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 5980 * 0 = Support is disabled (default) 5981 * 1 = Allow supported targets only 5982 * 2 = Allow all targets 5983 * Value range is [0,2]. 5984 */ 5985LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 5986 LPFC_VMID_PRIO_TAG_DISABLE, 5987 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 5988 "Enable Priority Tagging VMID support"); 5989 5990static struct attribute *lpfc_hba_attrs[] = { 5991 &dev_attr_nvme_info.attr, 5992 &dev_attr_scsi_stat.attr, 5993 &dev_attr_bg_info.attr, 5994 &dev_attr_bg_guard_err.attr, 5995 &dev_attr_bg_apptag_err.attr, 5996 &dev_attr_bg_reftag_err.attr, 5997 &dev_attr_info.attr, 5998 &dev_attr_serialnum.attr, 5999 &dev_attr_modeldesc.attr, 6000 &dev_attr_modelname.attr, 6001 &dev_attr_programtype.attr, 6002 &dev_attr_portnum.attr, 6003 &dev_attr_fwrev.attr, 6004 &dev_attr_hdw.attr, 6005 &dev_attr_option_rom_version.attr, 6006 &dev_attr_link_state.attr, 6007 &dev_attr_num_discovered_ports.attr, 6008 &dev_attr_lpfc_drvr_version.attr, 6009 &dev_attr_lpfc_enable_fip.attr, 6010 &dev_attr_lpfc_temp_sensor.attr, 6011 &dev_attr_lpfc_log_verbose.attr, 6012 &dev_attr_lpfc_lun_queue_depth.attr, 6013 &dev_attr_lpfc_tgt_queue_depth.attr, 6014 &dev_attr_lpfc_hba_queue_depth.attr, 6015 &dev_attr_lpfc_peer_port_login.attr, 6016 &dev_attr_lpfc_nodev_tmo.attr, 6017 &dev_attr_lpfc_devloss_tmo.attr, 6018 &dev_attr_lpfc_enable_fc4_type.attr, 6019 &dev_attr_lpfc_fcp_class.attr, 6020 &dev_attr_lpfc_use_adisc.attr, 6021 &dev_attr_lpfc_first_burst_size.attr, 6022 &dev_attr_lpfc_ack0.attr, 6023 &dev_attr_lpfc_xri_rebalancing.attr, 6024 &dev_attr_lpfc_topology.attr, 6025 &dev_attr_lpfc_scan_down.attr, 6026 &dev_attr_lpfc_link_speed.attr, 6027 &dev_attr_lpfc_fcp_io_sched.attr, 6028 &dev_attr_lpfc_ns_query.attr, 6029 &dev_attr_lpfc_fcp2_no_tgt_reset.attr, 6030 &dev_attr_lpfc_cr_delay.attr, 6031 &dev_attr_lpfc_cr_count.attr, 6032 &dev_attr_lpfc_multi_ring_support.attr, 6033 &dev_attr_lpfc_multi_ring_rctl.attr, 6034 &dev_attr_lpfc_multi_ring_type.attr, 6035 &dev_attr_lpfc_fdmi_on.attr, 6036 &dev_attr_lpfc_enable_SmartSAN.attr, 6037 &dev_attr_lpfc_max_luns.attr, 6038 &dev_attr_lpfc_enable_npiv.attr, 6039 &dev_attr_lpfc_fcf_failover_policy.attr, 6040 &dev_attr_lpfc_enable_rrq.attr, 6041 &dev_attr_lpfc_fcp_wait_abts_rsp.attr, 6042 &dev_attr_nport_evt_cnt.attr, 6043 &dev_attr_board_mode.attr, 6044 &dev_attr_lpfc_xcvr_data.attr, 6045 &dev_attr_max_vpi.attr, 6046 &dev_attr_used_vpi.attr, 6047 &dev_attr_max_rpi.attr, 6048 &dev_attr_used_rpi.attr, 6049 &dev_attr_max_xri.attr, 6050 &dev_attr_used_xri.attr, 6051 &dev_attr_npiv_info.attr, 6052 &dev_attr_issue_reset.attr, 6053 &dev_attr_lpfc_poll.attr, 6054 &dev_attr_lpfc_poll_tmo.attr, 6055 &dev_attr_lpfc_task_mgmt_tmo.attr, 6056 &dev_attr_lpfc_use_msi.attr, 6057 &dev_attr_lpfc_nvme_oas.attr, 6058 &dev_attr_lpfc_nvme_embed_cmd.attr, 6059 &dev_attr_lpfc_fcp_imax.attr, 6060 &dev_attr_lpfc_force_rscn.attr, 6061 &dev_attr_lpfc_cq_poll_threshold.attr, 6062 &dev_attr_lpfc_cq_max_proc_limit.attr, 6063 &dev_attr_lpfc_fcp_cpu_map.attr, 6064 &dev_attr_lpfc_fcp_mq_threshold.attr, 6065 &dev_attr_lpfc_hdw_queue.attr, 6066 &dev_attr_lpfc_irq_chann.attr, 6067 &dev_attr_lpfc_suppress_rsp.attr, 6068 &dev_attr_lpfc_nvmet_mrq.attr, 6069 &dev_attr_lpfc_nvmet_mrq_post.attr, 6070 &dev_attr_lpfc_nvme_enable_fb.attr, 6071 &dev_attr_lpfc_nvmet_fb_size.attr, 6072 &dev_attr_lpfc_enable_bg.attr, 6073 &dev_attr_lpfc_enable_hba_reset.attr, 6074 &dev_attr_lpfc_enable_hba_heartbeat.attr, 6075 &dev_attr_lpfc_EnableXLane.attr, 6076 &dev_attr_lpfc_XLanePriority.attr, 6077 &dev_attr_lpfc_xlane_lun.attr, 6078 &dev_attr_lpfc_xlane_tgt.attr, 6079 &dev_attr_lpfc_xlane_vpt.attr, 6080 &dev_attr_lpfc_xlane_lun_state.attr, 6081 &dev_attr_lpfc_xlane_lun_status.attr, 6082 &dev_attr_lpfc_xlane_priority.attr, 6083 &dev_attr_lpfc_sg_seg_cnt.attr, 6084 &dev_attr_lpfc_max_scsicmpl_time.attr, 6085 &dev_attr_lpfc_aer_support.attr, 6086 &dev_attr_lpfc_aer_state_cleanup.attr, 6087 &dev_attr_lpfc_sriov_nr_virtfn.attr, 6088 &dev_attr_lpfc_req_fw_upgrade.attr, 6089 &dev_attr_lpfc_suppress_link_up.attr, 6090 &dev_attr_iocb_hw.attr, 6091 &dev_attr_pls.attr, 6092 &dev_attr_pt.attr, 6093 &dev_attr_txq_hw.attr, 6094 &dev_attr_txcmplq_hw.attr, 6095 &dev_attr_lpfc_sriov_hw_max_virtfn.attr, 6096 &dev_attr_protocol.attr, 6097 &dev_attr_lpfc_xlane_supported.attr, 6098 &dev_attr_lpfc_enable_mds_diags.attr, 6099 &dev_attr_lpfc_ras_fwlog_buffsize.attr, 6100 &dev_attr_lpfc_ras_fwlog_level.attr, 6101 &dev_attr_lpfc_ras_fwlog_func.attr, 6102 &dev_attr_lpfc_enable_bbcr.attr, 6103 &dev_attr_lpfc_enable_dpp.attr, 6104 &dev_attr_lpfc_enable_mi.attr, 6105 &dev_attr_cmf_info.attr, 6106 &dev_attr_lpfc_max_vmid.attr, 6107 &dev_attr_lpfc_vmid_inactivity_timeout.attr, 6108 &dev_attr_lpfc_vmid_app_header.attr, 6109 &dev_attr_lpfc_vmid_priority_tagging.attr, 6110 NULL, 6111}; 6112 6113static const struct attribute_group lpfc_hba_attr_group = { 6114 .attrs = lpfc_hba_attrs 6115}; 6116 6117const struct attribute_group *lpfc_hba_groups[] = { 6118 &lpfc_hba_attr_group, 6119 NULL 6120}; 6121 6122static struct attribute *lpfc_vport_attrs[] = { 6123 &dev_attr_info.attr, 6124 &dev_attr_link_state.attr, 6125 &dev_attr_num_discovered_ports.attr, 6126 &dev_attr_lpfc_drvr_version.attr, 6127 &dev_attr_lpfc_log_verbose.attr, 6128 &dev_attr_lpfc_lun_queue_depth.attr, 6129 &dev_attr_lpfc_tgt_queue_depth.attr, 6130 &dev_attr_lpfc_nodev_tmo.attr, 6131 &dev_attr_lpfc_devloss_tmo.attr, 6132 &dev_attr_lpfc_hba_queue_depth.attr, 6133 &dev_attr_lpfc_peer_port_login.attr, 6134 &dev_attr_lpfc_restrict_login.attr, 6135 &dev_attr_lpfc_fcp_class.attr, 6136 &dev_attr_lpfc_use_adisc.attr, 6137 &dev_attr_lpfc_first_burst_size.attr, 6138 &dev_attr_lpfc_max_luns.attr, 6139 &dev_attr_nport_evt_cnt.attr, 6140 &dev_attr_npiv_info.attr, 6141 &dev_attr_lpfc_enable_da_id.attr, 6142 &dev_attr_lpfc_max_scsicmpl_time.attr, 6143 &dev_attr_lpfc_static_vport.attr, 6144 &dev_attr_cmf_info.attr, 6145 NULL, 6146}; 6147 6148static const struct attribute_group lpfc_vport_attr_group = { 6149 .attrs = lpfc_vport_attrs 6150}; 6151 6152const struct attribute_group *lpfc_vport_groups[] = { 6153 &lpfc_vport_attr_group, 6154 NULL 6155}; 6156 6157/** 6158 * sysfs_ctlreg_write - Write method for writing to ctlreg 6159 * @filp: open sysfs file 6160 * @kobj: kernel kobject that contains the kernel class device. 6161 * @bin_attr: kernel attributes passed to us. 6162 * @buf: contains the data to be written to the adapter IOREG space. 6163 * @off: offset into buffer to beginning of data. 6164 * @count: bytes to transfer. 6165 * 6166 * Description: 6167 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6168 * Uses the adapter io control registers to send buf contents to the adapter. 6169 * 6170 * Returns: 6171 * -ERANGE off and count combo out of range 6172 * -EINVAL off, count or buff address invalid 6173 * -EPERM adapter is offline 6174 * value of count, buf contents written 6175 **/ 6176static ssize_t 6177sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6178 struct bin_attribute *bin_attr, 6179 char *buf, loff_t off, size_t count) 6180{ 6181 size_t buf_off; 6182 struct device *dev = container_of(kobj, struct device, kobj); 6183 struct Scsi_Host *shost = class_to_shost(dev); 6184 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6185 struct lpfc_hba *phba = vport->phba; 6186 6187 if (phba->sli_rev >= LPFC_SLI_REV4) 6188 return -EPERM; 6189 6190 if ((off + count) > FF_REG_AREA_SIZE) 6191 return -ERANGE; 6192 6193 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6194 return 0; 6195 6196 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6197 return -EINVAL; 6198 6199 /* This is to protect HBA registers from accidental writes. */ 6200 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6201 return -EINVAL; 6202 6203 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6204 return -EPERM; 6205 6206 spin_lock_irq(&phba->hbalock); 6207 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6208 buf_off += sizeof(uint32_t)) 6209 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6210 phba->ctrl_regs_memmap_p + off + buf_off); 6211 6212 spin_unlock_irq(&phba->hbalock); 6213 6214 return count; 6215} 6216 6217/** 6218 * sysfs_ctlreg_read - Read method for reading from ctlreg 6219 * @filp: open sysfs file 6220 * @kobj: kernel kobject that contains the kernel class device. 6221 * @bin_attr: kernel attributes passed to us. 6222 * @buf: if successful contains the data from the adapter IOREG space. 6223 * @off: offset into buffer to beginning of data. 6224 * @count: bytes to transfer. 6225 * 6226 * Description: 6227 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6228 * Uses the adapter io control registers to read data into buf. 6229 * 6230 * Returns: 6231 * -ERANGE off and count combo out of range 6232 * -EINVAL off, count or buff address invalid 6233 * value of count, buf contents read 6234 **/ 6235static ssize_t 6236sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6237 struct bin_attribute *bin_attr, 6238 char *buf, loff_t off, size_t count) 6239{ 6240 size_t buf_off; 6241 uint32_t * tmp_ptr; 6242 struct device *dev = container_of(kobj, struct device, kobj); 6243 struct Scsi_Host *shost = class_to_shost(dev); 6244 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6245 struct lpfc_hba *phba = vport->phba; 6246 6247 if (phba->sli_rev >= LPFC_SLI_REV4) 6248 return -EPERM; 6249 6250 if (off > FF_REG_AREA_SIZE) 6251 return -ERANGE; 6252 6253 if ((off + count) > FF_REG_AREA_SIZE) 6254 count = FF_REG_AREA_SIZE - off; 6255 6256 if (count == 0) return 0; 6257 6258 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6259 return -EINVAL; 6260 6261 spin_lock_irq(&phba->hbalock); 6262 6263 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6264 tmp_ptr = (uint32_t *)(buf + buf_off); 6265 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6266 } 6267 6268 spin_unlock_irq(&phba->hbalock); 6269 6270 return count; 6271} 6272 6273static struct bin_attribute sysfs_ctlreg_attr = { 6274 .attr = { 6275 .name = "ctlreg", 6276 .mode = S_IRUSR | S_IWUSR, 6277 }, 6278 .size = 256, 6279 .read = sysfs_ctlreg_read, 6280 .write = sysfs_ctlreg_write, 6281}; 6282 6283/** 6284 * sysfs_mbox_write - Write method for writing information via mbox 6285 * @filp: open sysfs file 6286 * @kobj: kernel kobject that contains the kernel class device. 6287 * @bin_attr: kernel attributes passed to us. 6288 * @buf: contains the data to be written to sysfs mbox. 6289 * @off: offset into buffer to beginning of data. 6290 * @count: bytes to transfer. 6291 * 6292 * Description: 6293 * Deprecated function. All mailbox access from user space is performed via the 6294 * bsg interface. 6295 * 6296 * Returns: 6297 * -EPERM operation not permitted 6298 **/ 6299static ssize_t 6300sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6301 struct bin_attribute *bin_attr, 6302 char *buf, loff_t off, size_t count) 6303{ 6304 return -EPERM; 6305} 6306 6307/** 6308 * sysfs_mbox_read - Read method for reading information via mbox 6309 * @filp: open sysfs file 6310 * @kobj: kernel kobject that contains the kernel class device. 6311 * @bin_attr: kernel attributes passed to us. 6312 * @buf: contains the data to be read from sysfs mbox. 6313 * @off: offset into buffer to beginning of data. 6314 * @count: bytes to transfer. 6315 * 6316 * Description: 6317 * Deprecated function. All mailbox access from user space is performed via the 6318 * bsg interface. 6319 * 6320 * Returns: 6321 * -EPERM operation not permitted 6322 **/ 6323static ssize_t 6324sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6325 struct bin_attribute *bin_attr, 6326 char *buf, loff_t off, size_t count) 6327{ 6328 return -EPERM; 6329} 6330 6331static struct bin_attribute sysfs_mbox_attr = { 6332 .attr = { 6333 .name = "mbox", 6334 .mode = S_IRUSR | S_IWUSR, 6335 }, 6336 .size = MAILBOX_SYSFS_MAX, 6337 .read = sysfs_mbox_read, 6338 .write = sysfs_mbox_write, 6339}; 6340 6341/** 6342 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6343 * @vport: address of lpfc vport structure. 6344 * 6345 * Return codes: 6346 * zero on success 6347 * error return code from sysfs_create_bin_file() 6348 **/ 6349int 6350lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6351{ 6352 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6353 int error; 6354 6355 /* Virtual ports do not need ctrl_reg and mbox */ 6356 if (vport->port_type == LPFC_NPIV_PORT) 6357 return 0; 6358 6359 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6360 &sysfs_ctlreg_attr); 6361 if (error) 6362 goto out; 6363 6364 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6365 &sysfs_mbox_attr); 6366 if (error) 6367 goto out_remove_ctlreg_attr; 6368 6369 return 0; 6370out_remove_ctlreg_attr: 6371 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6372out: 6373 return error; 6374} 6375 6376/** 6377 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6378 * @vport: address of lpfc vport structure. 6379 **/ 6380void 6381lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6382{ 6383 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6384 6385 /* Virtual ports do not need ctrl_reg and mbox */ 6386 if (vport->port_type == LPFC_NPIV_PORT) 6387 return; 6388 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6389 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6390} 6391 6392/* 6393 * Dynamic FC Host Attributes Support 6394 */ 6395 6396/** 6397 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6398 * @shost: kernel scsi host pointer. 6399 **/ 6400static void 6401lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6402{ 6403 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6404 6405 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6406 sizeof fc_host_symbolic_name(shost)); 6407} 6408 6409/** 6410 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6411 * @shost: kernel scsi host pointer. 6412 **/ 6413static void 6414lpfc_get_host_port_id(struct Scsi_Host *shost) 6415{ 6416 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6417 6418 /* note: fc_myDID already in cpu endianness */ 6419 fc_host_port_id(shost) = vport->fc_myDID; 6420} 6421 6422/** 6423 * lpfc_get_host_port_type - Set the value of the scsi host port type 6424 * @shost: kernel scsi host pointer. 6425 **/ 6426static void 6427lpfc_get_host_port_type(struct Scsi_Host *shost) 6428{ 6429 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6430 struct lpfc_hba *phba = vport->phba; 6431 6432 spin_lock_irq(shost->host_lock); 6433 6434 if (vport->port_type == LPFC_NPIV_PORT) { 6435 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6436 } else if (lpfc_is_link_up(phba)) { 6437 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6438 if (vport->fc_flag & FC_PUBLIC_LOOP) 6439 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6440 else 6441 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6442 } else { 6443 if (vport->fc_flag & FC_FABRIC) 6444 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6445 else 6446 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6447 } 6448 } else 6449 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6450 6451 spin_unlock_irq(shost->host_lock); 6452} 6453 6454/** 6455 * lpfc_get_host_port_state - Set the value of the scsi host port state 6456 * @shost: kernel scsi host pointer. 6457 **/ 6458static void 6459lpfc_get_host_port_state(struct Scsi_Host *shost) 6460{ 6461 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6462 struct lpfc_hba *phba = vport->phba; 6463 6464 spin_lock_irq(shost->host_lock); 6465 6466 if (vport->fc_flag & FC_OFFLINE_MODE) 6467 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6468 else { 6469 switch (phba->link_state) { 6470 case LPFC_LINK_UNKNOWN: 6471 case LPFC_LINK_DOWN: 6472 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6473 break; 6474 case LPFC_LINK_UP: 6475 case LPFC_CLEAR_LA: 6476 case LPFC_HBA_READY: 6477 /* Links up, reports port state accordingly */ 6478 if (vport->port_state < LPFC_VPORT_READY) 6479 fc_host_port_state(shost) = 6480 FC_PORTSTATE_BYPASSED; 6481 else 6482 fc_host_port_state(shost) = 6483 FC_PORTSTATE_ONLINE; 6484 break; 6485 case LPFC_HBA_ERROR: 6486 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6487 break; 6488 default: 6489 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6490 break; 6491 } 6492 } 6493 6494 spin_unlock_irq(shost->host_lock); 6495} 6496 6497/** 6498 * lpfc_get_host_speed - Set the value of the scsi host speed 6499 * @shost: kernel scsi host pointer. 6500 **/ 6501static void 6502lpfc_get_host_speed(struct Scsi_Host *shost) 6503{ 6504 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6505 struct lpfc_hba *phba = vport->phba; 6506 6507 spin_lock_irq(shost->host_lock); 6508 6509 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6510 switch(phba->fc_linkspeed) { 6511 case LPFC_LINK_SPEED_1GHZ: 6512 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6513 break; 6514 case LPFC_LINK_SPEED_2GHZ: 6515 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6516 break; 6517 case LPFC_LINK_SPEED_4GHZ: 6518 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6519 break; 6520 case LPFC_LINK_SPEED_8GHZ: 6521 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6522 break; 6523 case LPFC_LINK_SPEED_10GHZ: 6524 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6525 break; 6526 case LPFC_LINK_SPEED_16GHZ: 6527 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6528 break; 6529 case LPFC_LINK_SPEED_32GHZ: 6530 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6531 break; 6532 case LPFC_LINK_SPEED_64GHZ: 6533 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6534 break; 6535 case LPFC_LINK_SPEED_128GHZ: 6536 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6537 break; 6538 case LPFC_LINK_SPEED_256GHZ: 6539 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6540 break; 6541 default: 6542 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6543 break; 6544 } 6545 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6546 switch (phba->fc_linkspeed) { 6547 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6548 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6549 break; 6550 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6551 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6552 break; 6553 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6554 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6555 break; 6556 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6557 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6558 break; 6559 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6560 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6561 break; 6562 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6563 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6564 break; 6565 default: 6566 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6567 break; 6568 } 6569 } else 6570 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6571 6572 spin_unlock_irq(shost->host_lock); 6573} 6574 6575/** 6576 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6577 * @shost: kernel scsi host pointer. 6578 **/ 6579static void 6580lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6581{ 6582 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6583 struct lpfc_hba *phba = vport->phba; 6584 u64 node_name; 6585 6586 spin_lock_irq(shost->host_lock); 6587 6588 if ((vport->port_state > LPFC_FLOGI) && 6589 ((vport->fc_flag & FC_FABRIC) || 6590 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6591 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6592 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6593 else 6594 /* fabric is local port if there is no F/FL_Port */ 6595 node_name = 0; 6596 6597 spin_unlock_irq(shost->host_lock); 6598 6599 fc_host_fabric_name(shost) = node_name; 6600} 6601 6602/** 6603 * lpfc_get_stats - Return statistical information about the adapter 6604 * @shost: kernel scsi host pointer. 6605 * 6606 * Notes: 6607 * NULL on error for link down, no mbox pool, sli2 active, 6608 * management not allowed, memory allocation error, or mbox error. 6609 * 6610 * Returns: 6611 * NULL for error 6612 * address of the adapter host statistics 6613 **/ 6614static struct fc_host_statistics * 6615lpfc_get_stats(struct Scsi_Host *shost) 6616{ 6617 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6618 struct lpfc_hba *phba = vport->phba; 6619 struct lpfc_sli *psli = &phba->sli; 6620 struct fc_host_statistics *hs = &phba->link_stats; 6621 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6622 LPFC_MBOXQ_t *pmboxq; 6623 MAILBOX_t *pmb; 6624 int rc = 0; 6625 6626 /* 6627 * prevent udev from issuing mailbox commands until the port is 6628 * configured. 6629 */ 6630 if (phba->link_state < LPFC_LINK_DOWN || 6631 !phba->mbox_mem_pool || 6632 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6633 return NULL; 6634 6635 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6636 return NULL; 6637 6638 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6639 if (!pmboxq) 6640 return NULL; 6641 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6642 6643 pmb = &pmboxq->u.mb; 6644 pmb->mbxCommand = MBX_READ_STATUS; 6645 pmb->mbxOwner = OWN_HOST; 6646 pmboxq->ctx_buf = NULL; 6647 pmboxq->vport = vport; 6648 6649 if (vport->fc_flag & FC_OFFLINE_MODE) { 6650 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6651 if (rc != MBX_SUCCESS) { 6652 mempool_free(pmboxq, phba->mbox_mem_pool); 6653 return NULL; 6654 } 6655 } else { 6656 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6657 if (rc != MBX_SUCCESS) { 6658 if (rc != MBX_TIMEOUT) 6659 mempool_free(pmboxq, phba->mbox_mem_pool); 6660 return NULL; 6661 } 6662 } 6663 6664 memset(hs, 0, sizeof (struct fc_host_statistics)); 6665 6666 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6667 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6668 6669 /* 6670 * The MBX_READ_STATUS returns tx_k_bytes which has to be 6671 * converted to words. 6672 * 6673 * Check if extended byte flag is set, to know when to collect upper 6674 * bits of 64 bit wide statistics counter. 6675 */ 6676 if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { 6677 hs->tx_words = (u64) 6678 ((((u64)(pmb->un.varRdStatus.xmit_xkb & 6679 RD_ST_XMIT_XKB_MASK) << 32) | 6680 (u64)pmb->un.varRdStatus.xmitByteCnt) * 6681 (u64)256); 6682 hs->rx_words = (u64) 6683 ((((u64)(pmb->un.varRdStatus.rcv_xkb & 6684 RD_ST_RCV_XKB_MASK) << 32) | 6685 (u64)pmb->un.varRdStatus.rcvByteCnt) * 6686 (u64)256); 6687 } else { 6688 hs->tx_words = (uint64_t) 6689 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6690 * (uint64_t)256); 6691 hs->rx_words = (uint64_t) 6692 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6693 * (uint64_t)256); 6694 } 6695 6696 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6697 pmb->mbxCommand = MBX_READ_LNK_STAT; 6698 pmb->mbxOwner = OWN_HOST; 6699 pmboxq->ctx_buf = NULL; 6700 pmboxq->vport = vport; 6701 6702 if (vport->fc_flag & FC_OFFLINE_MODE) { 6703 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6704 if (rc != MBX_SUCCESS) { 6705 mempool_free(pmboxq, phba->mbox_mem_pool); 6706 return NULL; 6707 } 6708 } else { 6709 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6710 if (rc != MBX_SUCCESS) { 6711 if (rc != MBX_TIMEOUT) 6712 mempool_free(pmboxq, phba->mbox_mem_pool); 6713 return NULL; 6714 } 6715 } 6716 6717 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6718 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6719 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6720 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6721 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6722 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6723 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6724 6725 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 6726 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 6727 6728 hs->link_failure_count -= lso->link_failure_count; 6729 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6730 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6731 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6732 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6733 hs->invalid_crc_count -= lso->invalid_crc_count; 6734 hs->error_frames -= lso->error_frames; 6735 6736 if (phba->hba_flag & HBA_FCOE_MODE) { 6737 hs->lip_count = -1; 6738 hs->nos_count = (phba->link_events >> 1); 6739 hs->nos_count -= lso->link_events; 6740 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6741 hs->lip_count = (phba->fc_eventTag >> 1); 6742 hs->lip_count -= lso->link_events; 6743 hs->nos_count = -1; 6744 } else { 6745 hs->lip_count = -1; 6746 hs->nos_count = (phba->fc_eventTag >> 1); 6747 hs->nos_count -= lso->link_events; 6748 } 6749 6750 hs->dumped_frames = -1; 6751 6752 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6753 6754 mempool_free(pmboxq, phba->mbox_mem_pool); 6755 6756 return hs; 6757} 6758 6759/** 6760 * lpfc_reset_stats - Copy the adapter link stats information 6761 * @shost: kernel scsi host pointer. 6762 **/ 6763static void 6764lpfc_reset_stats(struct Scsi_Host *shost) 6765{ 6766 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6767 struct lpfc_hba *phba = vport->phba; 6768 struct lpfc_sli *psli = &phba->sli; 6769 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6770 LPFC_MBOXQ_t *pmboxq; 6771 MAILBOX_t *pmb; 6772 int rc = 0; 6773 6774 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6775 return; 6776 6777 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6778 if (!pmboxq) 6779 return; 6780 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6781 6782 pmb = &pmboxq->u.mb; 6783 pmb->mbxCommand = MBX_READ_STATUS; 6784 pmb->mbxOwner = OWN_HOST; 6785 pmb->un.varWords[0] = 0x1; /* reset request */ 6786 pmboxq->ctx_buf = NULL; 6787 pmboxq->vport = vport; 6788 6789 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6790 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6791 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6792 if (rc != MBX_SUCCESS) { 6793 mempool_free(pmboxq, phba->mbox_mem_pool); 6794 return; 6795 } 6796 } else { 6797 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6798 if (rc != MBX_SUCCESS) { 6799 if (rc != MBX_TIMEOUT) 6800 mempool_free(pmboxq, phba->mbox_mem_pool); 6801 return; 6802 } 6803 } 6804 6805 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6806 pmb->mbxCommand = MBX_READ_LNK_STAT; 6807 pmb->mbxOwner = OWN_HOST; 6808 pmboxq->ctx_buf = NULL; 6809 pmboxq->vport = vport; 6810 6811 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6812 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6813 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6814 if (rc != MBX_SUCCESS) { 6815 mempool_free(pmboxq, phba->mbox_mem_pool); 6816 return; 6817 } 6818 } else { 6819 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6820 if (rc != MBX_SUCCESS) { 6821 if (rc != MBX_TIMEOUT) 6822 mempool_free(pmboxq, phba->mbox_mem_pool); 6823 return; 6824 } 6825 } 6826 6827 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6828 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6829 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6830 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6831 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6832 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6833 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6834 if (phba->hba_flag & HBA_FCOE_MODE) 6835 lso->link_events = (phba->link_events >> 1); 6836 else 6837 lso->link_events = (phba->fc_eventTag >> 1); 6838 6839 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 6840 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 6841 6842 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 6843 sizeof(shost_to_fc_host(shost)->fpin_stats)); 6844 6845 psli->stats_start = ktime_get_seconds(); 6846 6847 mempool_free(pmboxq, phba->mbox_mem_pool); 6848 6849 return; 6850} 6851 6852/* 6853 * The LPFC driver treats linkdown handling as target loss events so there 6854 * are no sysfs handlers for link_down_tmo. 6855 */ 6856 6857/** 6858 * lpfc_get_node_by_target - Return the nodelist for a target 6859 * @starget: kernel scsi target pointer. 6860 * 6861 * Returns: 6862 * address of the node list if found 6863 * NULL target not found 6864 **/ 6865static struct lpfc_nodelist * 6866lpfc_get_node_by_target(struct scsi_target *starget) 6867{ 6868 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6869 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6870 struct lpfc_nodelist *ndlp; 6871 6872 spin_lock_irq(shost->host_lock); 6873 /* Search for this, mapped, target ID */ 6874 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6875 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6876 starget->id == ndlp->nlp_sid) { 6877 spin_unlock_irq(shost->host_lock); 6878 return ndlp; 6879 } 6880 } 6881 spin_unlock_irq(shost->host_lock); 6882 return NULL; 6883} 6884 6885/** 6886 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6887 * @starget: kernel scsi target pointer. 6888 **/ 6889static void 6890lpfc_get_starget_port_id(struct scsi_target *starget) 6891{ 6892 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6893 6894 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6895} 6896 6897/** 6898 * lpfc_get_starget_node_name - Set the target node name 6899 * @starget: kernel scsi target pointer. 6900 * 6901 * Description: Set the target node name to the ndlp node name wwn or zero. 6902 **/ 6903static void 6904lpfc_get_starget_node_name(struct scsi_target *starget) 6905{ 6906 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6907 6908 fc_starget_node_name(starget) = 6909 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6910} 6911 6912/** 6913 * lpfc_get_starget_port_name - Set the target port name 6914 * @starget: kernel scsi target pointer. 6915 * 6916 * Description: set the target port name to the ndlp port name wwn or zero. 6917 **/ 6918static void 6919lpfc_get_starget_port_name(struct scsi_target *starget) 6920{ 6921 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6922 6923 fc_starget_port_name(starget) = 6924 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6925} 6926 6927/** 6928 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6929 * @rport: fc rport address. 6930 * @timeout: new value for dev loss tmo. 6931 * 6932 * Description: 6933 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6934 * dev_loss_tmo to one. 6935 **/ 6936static void 6937lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6938{ 6939 struct lpfc_rport_data *rdata = rport->dd_data; 6940 struct lpfc_nodelist *ndlp = rdata->pnode; 6941#if (IS_ENABLED(CONFIG_NVME_FC)) 6942 struct lpfc_nvme_rport *nrport = NULL; 6943#endif 6944 6945 if (timeout) 6946 rport->dev_loss_tmo = timeout; 6947 else 6948 rport->dev_loss_tmo = 1; 6949 6950 if (!ndlp) { 6951 dev_info(&rport->dev, "Cannot find remote node to " 6952 "set rport dev loss tmo, port_id x%x\n", 6953 rport->port_id); 6954 return; 6955 } 6956 6957#if (IS_ENABLED(CONFIG_NVME_FC)) 6958 nrport = lpfc_ndlp_get_nrport(ndlp); 6959 6960 if (nrport && nrport->remoteport) 6961 nvme_fc_set_remoteport_devloss(nrport->remoteport, 6962 rport->dev_loss_tmo); 6963#endif 6964} 6965 6966/* 6967 * lpfc_rport_show_function - Return rport target information 6968 * 6969 * Description: 6970 * Macro that uses field to generate a function with the name lpfc_show_rport_ 6971 * 6972 * lpfc_show_rport_##field: returns the bytes formatted in buf 6973 * @cdev: class converted to an fc_rport. 6974 * @buf: on return contains the target_field or zero. 6975 * 6976 * Returns: size of formatted string. 6977 **/ 6978#define lpfc_rport_show_function(field, format_string, sz, cast) \ 6979static ssize_t \ 6980lpfc_show_rport_##field (struct device *dev, \ 6981 struct device_attribute *attr, \ 6982 char *buf) \ 6983{ \ 6984 struct fc_rport *rport = transport_class_to_rport(dev); \ 6985 struct lpfc_rport_data *rdata = rport->hostdata; \ 6986 return scnprintf(buf, sz, format_string, \ 6987 (rdata->target) ? cast rdata->target->field : 0); \ 6988} 6989 6990#define lpfc_rport_rd_attr(field, format_string, sz) \ 6991 lpfc_rport_show_function(field, format_string, sz, ) \ 6992static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6993 6994/** 6995 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 6996 * @fc_vport: The fc_vport who's symbolic name has been changed. 6997 * 6998 * Description: 6999 * This function is called by the transport after the @fc_vport's symbolic name 7000 * has been changed. This function re-registers the symbolic name with the 7001 * switch to propagate the change into the fabric if the vport is active. 7002 **/ 7003static void 7004lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7005{ 7006 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7007 7008 if (vport->port_state == LPFC_VPORT_READY) 7009 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7010} 7011 7012/** 7013 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7014 * @phba: Pointer to lpfc_hba struct. 7015 * @verbose: Verbose level to set. 7016 * 7017 * This function is called by the lpfc_get_cfgparam() routine to set the 7018 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7019 * log message according to the module's lpfc_log_verbose parameter setting 7020 * before hba port or vport created. 7021 **/ 7022static void 7023lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7024{ 7025 phba->cfg_log_verbose = verbose; 7026} 7027 7028struct fc_function_template lpfc_transport_functions = { 7029 /* fixed attributes the driver supports */ 7030 .show_host_node_name = 1, 7031 .show_host_port_name = 1, 7032 .show_host_supported_classes = 1, 7033 .show_host_supported_fc4s = 1, 7034 .show_host_supported_speeds = 1, 7035 .show_host_maxframe_size = 1, 7036 7037 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7038 .show_host_symbolic_name = 1, 7039 7040 /* dynamic attributes the driver supports */ 7041 .get_host_port_id = lpfc_get_host_port_id, 7042 .show_host_port_id = 1, 7043 7044 .get_host_port_type = lpfc_get_host_port_type, 7045 .show_host_port_type = 1, 7046 7047 .get_host_port_state = lpfc_get_host_port_state, 7048 .show_host_port_state = 1, 7049 7050 /* active_fc4s is shown but doesn't change (thus no get function) */ 7051 .show_host_active_fc4s = 1, 7052 7053 .get_host_speed = lpfc_get_host_speed, 7054 .show_host_speed = 1, 7055 7056 .get_host_fabric_name = lpfc_get_host_fabric_name, 7057 .show_host_fabric_name = 1, 7058 7059 /* 7060 * The LPFC driver treats linkdown handling as target loss events 7061 * so there are no sysfs handlers for link_down_tmo. 7062 */ 7063 7064 .get_fc_host_stats = lpfc_get_stats, 7065 .reset_fc_host_stats = lpfc_reset_stats, 7066 7067 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7068 .show_rport_maxframe_size = 1, 7069 .show_rport_supported_classes = 1, 7070 7071 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7072 .show_rport_dev_loss_tmo = 1, 7073 7074 .get_starget_port_id = lpfc_get_starget_port_id, 7075 .show_starget_port_id = 1, 7076 7077 .get_starget_node_name = lpfc_get_starget_node_name, 7078 .show_starget_node_name = 1, 7079 7080 .get_starget_port_name = lpfc_get_starget_port_name, 7081 .show_starget_port_name = 1, 7082 7083 .issue_fc_host_lip = lpfc_issue_lip, 7084 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7085 .terminate_rport_io = lpfc_terminate_rport_io, 7086 7087 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7088 7089 .vport_disable = lpfc_vport_disable, 7090 7091 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7092 7093 .bsg_request = lpfc_bsg_request, 7094 .bsg_timeout = lpfc_bsg_timeout, 7095}; 7096 7097struct fc_function_template lpfc_vport_transport_functions = { 7098 /* fixed attributes the driver supports */ 7099 .show_host_node_name = 1, 7100 .show_host_port_name = 1, 7101 .show_host_supported_classes = 1, 7102 .show_host_supported_fc4s = 1, 7103 .show_host_supported_speeds = 1, 7104 .show_host_maxframe_size = 1, 7105 7106 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7107 .show_host_symbolic_name = 1, 7108 7109 /* dynamic attributes the driver supports */ 7110 .get_host_port_id = lpfc_get_host_port_id, 7111 .show_host_port_id = 1, 7112 7113 .get_host_port_type = lpfc_get_host_port_type, 7114 .show_host_port_type = 1, 7115 7116 .get_host_port_state = lpfc_get_host_port_state, 7117 .show_host_port_state = 1, 7118 7119 /* active_fc4s is shown but doesn't change (thus no get function) */ 7120 .show_host_active_fc4s = 1, 7121 7122 .get_host_speed = lpfc_get_host_speed, 7123 .show_host_speed = 1, 7124 7125 .get_host_fabric_name = lpfc_get_host_fabric_name, 7126 .show_host_fabric_name = 1, 7127 7128 /* 7129 * The LPFC driver treats linkdown handling as target loss events 7130 * so there are no sysfs handlers for link_down_tmo. 7131 */ 7132 7133 .get_fc_host_stats = lpfc_get_stats, 7134 .reset_fc_host_stats = lpfc_reset_stats, 7135 7136 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7137 .show_rport_maxframe_size = 1, 7138 .show_rport_supported_classes = 1, 7139 7140 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7141 .show_rport_dev_loss_tmo = 1, 7142 7143 .get_starget_port_id = lpfc_get_starget_port_id, 7144 .show_starget_port_id = 1, 7145 7146 .get_starget_node_name = lpfc_get_starget_node_name, 7147 .show_starget_node_name = 1, 7148 7149 .get_starget_port_name = lpfc_get_starget_port_name, 7150 .show_starget_port_name = 1, 7151 7152 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7153 .terminate_rport_io = lpfc_terminate_rport_io, 7154 7155 .vport_disable = lpfc_vport_disable, 7156 7157 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7158}; 7159 7160/** 7161 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7162 * Mode 7163 * @phba: lpfc_hba pointer. 7164 **/ 7165static void 7166lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7167{ 7168 /* If the adapter supports FCoE mode */ 7169 switch (phba->pcidev->device) { 7170 case PCI_DEVICE_ID_SKYHAWK: 7171 case PCI_DEVICE_ID_SKYHAWK_VF: 7172 case PCI_DEVICE_ID_LANCER_FCOE: 7173 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7174 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7175 case PCI_DEVICE_ID_TIGERSHARK: 7176 case PCI_DEVICE_ID_TOMCAT: 7177 phba->hba_flag |= HBA_FCOE_MODE; 7178 break; 7179 default: 7180 /* for others, clear the flag */ 7181 phba->hba_flag &= ~HBA_FCOE_MODE; 7182 } 7183} 7184 7185/** 7186 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7187 * @phba: lpfc_hba pointer. 7188 **/ 7189void 7190lpfc_get_cfgparam(struct lpfc_hba *phba) 7191{ 7192 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7193 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7194 lpfc_ns_query_init(phba, lpfc_ns_query); 7195 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7196 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7197 lpfc_cr_count_init(phba, lpfc_cr_count); 7198 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7199 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7200 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7201 lpfc_ack0_init(phba, lpfc_ack0); 7202 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7203 lpfc_topology_init(phba, lpfc_topology); 7204 lpfc_link_speed_init(phba, lpfc_link_speed); 7205 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7206 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7207 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7208 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7209 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7210 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7211 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7212 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7213 lpfc_use_msi_init(phba, lpfc_use_msi); 7214 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7215 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7216 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7217 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7218 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7219 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7220 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7221 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7222 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7223 7224 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7225 /* VMID Inits */ 7226 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7227 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7228 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7229 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7230 if (phba->sli_rev != LPFC_SLI_REV4) 7231 phba->cfg_EnableXLane = 0; 7232 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7233 7234 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7235 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7236 phba->cfg_oas_lun_state = 0; 7237 phba->cfg_oas_lun_status = 0; 7238 phba->cfg_oas_flags = 0; 7239 phba->cfg_oas_priority = 0; 7240 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7241 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7242 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7243 if (phba->sli_rev == LPFC_SLI_REV4) 7244 phba->cfg_poll = 0; 7245 else 7246 phba->cfg_poll = lpfc_poll; 7247 7248 /* Get the function mode */ 7249 lpfc_get_hba_function_mode(phba); 7250 7251 /* BlockGuard allowed for FC only. */ 7252 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7253 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7254 "0581 BlockGuard feature not supported\n"); 7255 /* If set, clear the BlockGuard support param */ 7256 phba->cfg_enable_bg = 0; 7257 } else if (phba->cfg_enable_bg) { 7258 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7259 } 7260 7261 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7262 7263 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7264 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7265 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7266 7267 /* Initialize first burst. Target vs Initiator are different. */ 7268 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7269 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7270 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7271 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7272 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7273 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7274 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7275 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7276 7277 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7278 phba->cmf_active_mode = LPFC_CFG_OFF; 7279 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7280 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7281 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7282 7283 if (phba->sli_rev != LPFC_SLI_REV4) { 7284 /* NVME only supported on SLI4 */ 7285 phba->nvmet_support = 0; 7286 phba->cfg_nvmet_mrq = 0; 7287 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7288 phba->cfg_enable_bbcr = 0; 7289 phba->cfg_xri_rebalancing = 0; 7290 } else { 7291 /* We MUST have FCP support */ 7292 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7293 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7294 } 7295 7296 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7297 7298 phba->cfg_enable_pbde = 0; 7299 7300 /* A value of 0 means use the number of CPUs found in the system */ 7301 if (phba->cfg_hdw_queue == 0) 7302 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7303 if (phba->cfg_irq_chann == 0) 7304 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7305 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7306 phba->sli_rev == LPFC_SLI_REV4) 7307 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7308 7309 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7310 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7311 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7312 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7313 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7314 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7315 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7316 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7317 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7318 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7319 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7320 7321 return; 7322} 7323 7324/** 7325 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7326 * dependencies between protocols and roles. 7327 * @phba: lpfc_hba pointer. 7328 **/ 7329void 7330lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7331{ 7332 int logit = 0; 7333 7334 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7335 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7336 logit = 1; 7337 } 7338 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7339 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7340 logit = 1; 7341 } 7342 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7343 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7344 logit = 1; 7345 } 7346 if (logit) 7347 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7348 "2006 Reducing Queues - CPU limitation: " 7349 "IRQ %d HDWQ %d\n", 7350 phba->cfg_irq_chann, 7351 phba->cfg_hdw_queue); 7352 7353 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7354 phba->nvmet_support) { 7355 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7356 7357 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7358 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7359 "NVME Target PRLI ACC enable_fb ", 7360 phba->cfg_nvme_enable_fb, 7361 phba->cfg_nvmet_fb_size, 7362 LPFC_NVMET_FB_SZ_MAX); 7363 7364 if (phba->cfg_nvme_enable_fb == 0) 7365 phba->cfg_nvmet_fb_size = 0; 7366 else { 7367 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7368 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7369 } 7370 7371 if (!phba->cfg_nvmet_mrq) 7372 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7373 7374 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7375 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7376 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7377 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7378 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7379 phba->cfg_nvmet_mrq); 7380 } 7381 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7382 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7383 7384 } else { 7385 /* Not NVME Target mode. Turn off Target parameters. */ 7386 phba->nvmet_support = 0; 7387 phba->cfg_nvmet_mrq = 0; 7388 phba->cfg_nvmet_fb_size = 0; 7389 } 7390} 7391 7392/** 7393 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7394 * @vport: lpfc_vport pointer. 7395 **/ 7396void 7397lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7398{ 7399 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7400 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7401 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7402 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7403 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7404 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7405 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7406 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7407 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7408 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7409 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7410 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7411 lpfc_max_luns_init(vport, lpfc_max_luns); 7412 lpfc_scan_down_init(vport, lpfc_scan_down); 7413 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7414 return; 7415} 7416