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 69 const char *const trunk_errmsg[] = { /* map errcode */ 70 "", /* There is no such error code at index 0*/ 71 "link negotiated speed does not match existing" 72 " trunk - link was \"low\" speed", 73 "link negotiated speed does not match" 74 " existing trunk - link was \"middle\" speed", 75 "link negotiated speed does not match existing" 76 " trunk - link was \"high\" speed", 77 "Attached to non-trunking port - F_Port", 78 "Attached to non-trunking port - N_Port", 79 "FLOGI response timeout", 80 "non-FLOGI frame received", 81 "Invalid FLOGI response", 82 "Trunking initialization protocol", 83 "Trunk peer device mismatch", 84 }; 85 86 /** 87 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 88 * @incr: integer to convert. 89 * @hdw: ascii string holding converted integer plus a string terminator. 90 * 91 * Description: 92 * JEDEC Joint Electron Device Engineering Council. 93 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 94 * character string. The string is then terminated with a NULL in byte 9. 95 * Hex 0-9 becomes ascii '0' to '9'. 96 * Hex a-f becomes ascii '=' to 'B' capital B. 97 * 98 * Notes: 99 * Coded for 32 bit integers only. 100 **/ 101 static void 102 lpfc_jedec_to_ascii(int incr, char hdw[]) 103 { 104 int i, j; 105 for (i = 0; i < 8; i++) { 106 j = (incr & 0xf); 107 if (j <= 9) 108 hdw[7 - i] = 0x30 + j; 109 else 110 hdw[7 - i] = 0x61 + j - 10; 111 incr = (incr >> 4); 112 } 113 hdw[8] = 0; 114 return; 115 } 116 117 static ssize_t 118 lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr, 119 char *buf) 120 { 121 struct Scsi_Host *shost = class_to_shost(dev); 122 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 123 struct lpfc_hba *phba = vport->phba; 124 struct lpfc_cgn_info *cp = NULL; 125 struct lpfc_cgn_stat *cgs; 126 int len = 0; 127 int cpu; 128 u64 rcv, total; 129 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 130 131 if (phba->cgn_i) 132 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt; 133 134 scnprintf(tmp, sizeof(tmp), 135 "Congestion Mgmt Info: E2Eattr %d Ver %d " 136 "CMF %d cnt %d\n", 137 phba->sli4_hba.pc_sli4_params.mi_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); 279 280 buffer_done: 281 len = strnlen(buf, PAGE_SIZE); 282 283 if (unlikely(len >= (PAGE_SIZE - 1))) { 284 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT, 285 "6312 Catching potential buffer " 286 "overflow > PAGE_SIZE = %lu bytes\n", 287 PAGE_SIZE); 288 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 289 LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); 290 } 291 return len; 292 } 293 294 /** 295 * lpfc_drvr_version_show - Return the Emulex driver string with version number 296 * @dev: class unused variable. 297 * @attr: device attribute, not used. 298 * @buf: on return contains the module description text. 299 * 300 * Returns: size of formatted string. 301 **/ 302 static ssize_t 303 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 304 char *buf) 305 { 306 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 307 } 308 309 /** 310 * lpfc_enable_fip_show - Return the fip mode of the HBA 311 * @dev: class unused variable. 312 * @attr: device attribute, not used. 313 * @buf: on return contains the module description text. 314 * 315 * Returns: size of formatted string. 316 **/ 317 static ssize_t 318 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 319 char *buf) 320 { 321 struct Scsi_Host *shost = class_to_shost(dev); 322 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 323 struct lpfc_hba *phba = vport->phba; 324 325 if (phba->hba_flag & HBA_FIP_SUPPORT) 326 return scnprintf(buf, PAGE_SIZE, "1\n"); 327 else 328 return scnprintf(buf, PAGE_SIZE, "0\n"); 329 } 330 331 static ssize_t 332 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 333 char *buf) 334 { 335 struct Scsi_Host *shost = class_to_shost(dev); 336 struct lpfc_vport *vport = shost_priv(shost); 337 struct lpfc_hba *phba = vport->phba; 338 struct lpfc_nvmet_tgtport *tgtp; 339 struct nvme_fc_local_port *localport; 340 struct lpfc_nvme_lport *lport; 341 struct lpfc_nvme_rport *rport; 342 struct lpfc_nodelist *ndlp; 343 struct nvme_fc_remote_port *nrport; 344 struct lpfc_fc4_ctrl_stat *cstat; 345 uint64_t data1, data2, data3; 346 uint64_t totin, totout, tot; 347 char *statep; 348 int i; 349 int len = 0; 350 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 351 352 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 353 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 354 return len; 355 } 356 if (phba->nvmet_support) { 357 if (!phba->targetport) { 358 len = scnprintf(buf, PAGE_SIZE, 359 "NVME Target: x%llx is not allocated\n", 360 wwn_to_u64(vport->fc_portname.u.wwn)); 361 return len; 362 } 363 /* Port state is only one of two values for now. */ 364 if (phba->targetport->port_id) 365 statep = "REGISTERED"; 366 else 367 statep = "INIT"; 368 scnprintf(tmp, sizeof(tmp), 369 "NVME Target Enabled State %s\n", 370 statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 scnprintf(tmp, sizeof(tmp), 375 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 376 "NVME Target: lpfc", 377 phba->brd_no, 378 wwn_to_u64(vport->fc_portname.u.wwn), 379 wwn_to_u64(vport->fc_nodename.u.wwn), 380 phba->targetport->port_id); 381 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 382 goto buffer_done; 383 384 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 385 >= PAGE_SIZE) 386 goto buffer_done; 387 388 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 389 scnprintf(tmp, sizeof(tmp), 390 "LS: Rcv %08x Drop %08x Abort %08x\n", 391 atomic_read(&tgtp->rcv_ls_req_in), 392 atomic_read(&tgtp->rcv_ls_req_drop), 393 atomic_read(&tgtp->xmt_ls_abort)); 394 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 395 goto buffer_done; 396 397 if (atomic_read(&tgtp->rcv_ls_req_in) != 398 atomic_read(&tgtp->rcv_ls_req_out)) { 399 scnprintf(tmp, sizeof(tmp), 400 "Rcv LS: in %08x != out %08x\n", 401 atomic_read(&tgtp->rcv_ls_req_in), 402 atomic_read(&tgtp->rcv_ls_req_out)); 403 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 404 goto buffer_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), 408 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 409 atomic_read(&tgtp->xmt_ls_rsp), 410 atomic_read(&tgtp->xmt_ls_drop), 411 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto buffer_done; 414 415 scnprintf(tmp, sizeof(tmp), 416 "LS: RSP Abort %08x xb %08x Err %08x\n", 417 atomic_read(&tgtp->xmt_ls_rsp_aborted), 418 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 419 atomic_read(&tgtp->xmt_ls_rsp_error)); 420 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 421 goto buffer_done; 422 423 scnprintf(tmp, sizeof(tmp), 424 "FCP: Rcv %08x Defer %08x Release %08x " 425 "Drop %08x\n", 426 atomic_read(&tgtp->rcv_fcp_cmd_in), 427 atomic_read(&tgtp->rcv_fcp_cmd_defer), 428 atomic_read(&tgtp->xmt_fcp_release), 429 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 430 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 431 goto buffer_done; 432 433 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 434 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 435 scnprintf(tmp, sizeof(tmp), 436 "Rcv FCP: in %08x != out %08x\n", 437 atomic_read(&tgtp->rcv_fcp_cmd_in), 438 atomic_read(&tgtp->rcv_fcp_cmd_out)); 439 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 440 goto buffer_done; 441 } 442 443 scnprintf(tmp, sizeof(tmp), 444 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 445 "drop %08x\n", 446 atomic_read(&tgtp->xmt_fcp_read), 447 atomic_read(&tgtp->xmt_fcp_read_rsp), 448 atomic_read(&tgtp->xmt_fcp_write), 449 atomic_read(&tgtp->xmt_fcp_rsp), 450 atomic_read(&tgtp->xmt_fcp_drop)); 451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 452 goto buffer_done; 453 454 scnprintf(tmp, sizeof(tmp), 455 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 456 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 457 atomic_read(&tgtp->xmt_fcp_rsp_error), 458 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 459 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 460 goto buffer_done; 461 462 scnprintf(tmp, sizeof(tmp), 463 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 464 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 465 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 466 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 467 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 468 goto buffer_done; 469 470 scnprintf(tmp, sizeof(tmp), 471 "ABORT: Xmt %08x Cmpl %08x\n", 472 atomic_read(&tgtp->xmt_fcp_abort), 473 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 474 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 475 goto buffer_done; 476 477 scnprintf(tmp, sizeof(tmp), 478 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 479 atomic_read(&tgtp->xmt_abort_sol), 480 atomic_read(&tgtp->xmt_abort_unsol), 481 atomic_read(&tgtp->xmt_abort_rsp), 482 atomic_read(&tgtp->xmt_abort_rsp_error)); 483 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 484 goto buffer_done; 485 486 scnprintf(tmp, sizeof(tmp), 487 "DELAY: ctx %08x fod %08x wqfull %08x\n", 488 atomic_read(&tgtp->defer_ctx), 489 atomic_read(&tgtp->defer_fod), 490 atomic_read(&tgtp->defer_wqfull)); 491 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 492 goto buffer_done; 493 494 /* Calculate outstanding IOs */ 495 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 496 tot += atomic_read(&tgtp->xmt_fcp_release); 497 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 498 499 scnprintf(tmp, sizeof(tmp), 500 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 501 "CTX Outstanding %08llx\n\n", 502 phba->sli4_hba.nvmet_xri_cnt, 503 phba->sli4_hba.nvmet_io_wait_cnt, 504 phba->sli4_hba.nvmet_io_wait_total, 505 tot); 506 strlcat(buf, tmp, PAGE_SIZE); 507 goto buffer_done; 508 } 509 510 localport = vport->localport; 511 if (!localport) { 512 len = scnprintf(buf, PAGE_SIZE, 513 "NVME Initiator x%llx is not allocated\n", 514 wwn_to_u64(vport->fc_portname.u.wwn)); 515 return len; 516 } 517 lport = (struct lpfc_nvme_lport *)localport->private; 518 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 519 goto buffer_done; 520 521 scnprintf(tmp, sizeof(tmp), 522 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 523 phba->brd_no, 524 phba->sli4_hba.max_cfg_param.max_xri, 525 phba->sli4_hba.io_xri_max, 526 lpfc_sli4_get_els_iocb_cnt(phba)); 527 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 528 goto buffer_done; 529 530 /* Port state is only one of two values for now. */ 531 if (localport->port_id) 532 statep = "ONLINE"; 533 else 534 statep = "UNKNOWN "; 535 536 scnprintf(tmp, sizeof(tmp), 537 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 538 "NVME LPORT lpfc", 539 phba->brd_no, 540 wwn_to_u64(vport->fc_portname.u.wwn), 541 wwn_to_u64(vport->fc_nodename.u.wwn), 542 localport->port_id, statep); 543 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 544 goto buffer_done; 545 546 spin_lock_irq(shost->host_lock); 547 548 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 549 nrport = NULL; 550 spin_lock(&ndlp->lock); 551 rport = lpfc_ndlp_get_nrport(ndlp); 552 if (rport) 553 nrport = rport->remoteport; 554 spin_unlock(&ndlp->lock); 555 if (!nrport) 556 continue; 557 558 /* Port state is only one of two values for now. */ 559 switch (nrport->port_state) { 560 case FC_OBJSTATE_ONLINE: 561 statep = "ONLINE"; 562 break; 563 case FC_OBJSTATE_UNKNOWN: 564 statep = "UNKNOWN "; 565 break; 566 default: 567 statep = "UNSUPPORTED"; 568 break; 569 } 570 571 /* Tab in to show lport ownership. */ 572 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 573 goto unlock_buf_done; 574 if (phba->brd_no >= 10) { 575 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 576 goto unlock_buf_done; 577 } 578 579 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 580 nrport->port_name); 581 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 582 goto unlock_buf_done; 583 584 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 585 nrport->node_name); 586 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 587 goto unlock_buf_done; 588 589 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 590 nrport->port_id); 591 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 592 goto unlock_buf_done; 593 594 /* An NVME rport can have multiple roles. */ 595 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 596 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 597 goto unlock_buf_done; 598 } 599 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 600 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 601 goto unlock_buf_done; 602 } 603 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 604 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 605 goto unlock_buf_done; 606 } 607 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 608 FC_PORT_ROLE_NVME_TARGET | 609 FC_PORT_ROLE_NVME_DISCOVERY)) { 610 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 611 nrport->port_role); 612 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 613 goto unlock_buf_done; 614 } 615 616 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 617 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 618 goto unlock_buf_done; 619 } 620 spin_unlock_irq(shost->host_lock); 621 622 if (!lport) 623 goto buffer_done; 624 625 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 626 goto buffer_done; 627 628 scnprintf(tmp, sizeof(tmp), 629 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 630 atomic_read(&lport->fc4NvmeLsRequests), 631 atomic_read(&lport->fc4NvmeLsCmpls), 632 atomic_read(&lport->xmt_ls_abort)); 633 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 634 goto buffer_done; 635 636 scnprintf(tmp, sizeof(tmp), 637 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 638 atomic_read(&lport->xmt_ls_err), 639 atomic_read(&lport->cmpl_ls_xb), 640 atomic_read(&lport->cmpl_ls_err)); 641 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 642 goto buffer_done; 643 644 totin = 0; 645 totout = 0; 646 for (i = 0; i < phba->cfg_hdw_queue; i++) { 647 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 648 tot = cstat->io_cmpls; 649 totin += tot; 650 data1 = cstat->input_requests; 651 data2 = cstat->output_requests; 652 data3 = cstat->control_requests; 653 totout += (data1 + data2 + data3); 654 } 655 scnprintf(tmp, sizeof(tmp), 656 "Total FCP Cmpl %016llx Issue %016llx " 657 "OutIO %016llx\n", 658 totin, totout, totout - totin); 659 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 660 goto buffer_done; 661 662 scnprintf(tmp, sizeof(tmp), 663 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 664 "wqerr %08x err %08x\n", 665 atomic_read(&lport->xmt_fcp_abort), 666 atomic_read(&lport->xmt_fcp_noxri), 667 atomic_read(&lport->xmt_fcp_bad_ndlp), 668 atomic_read(&lport->xmt_fcp_qdepth), 669 atomic_read(&lport->xmt_fcp_wqerr), 670 atomic_read(&lport->xmt_fcp_err)); 671 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 672 goto buffer_done; 673 674 scnprintf(tmp, sizeof(tmp), 675 "FCP CMPL: xb %08x Err %08x\n", 676 atomic_read(&lport->cmpl_fcp_xb), 677 atomic_read(&lport->cmpl_fcp_err)); 678 strlcat(buf, tmp, PAGE_SIZE); 679 680 /* host_lock is already unlocked. */ 681 goto buffer_done; 682 683 unlock_buf_done: 684 spin_unlock_irq(shost->host_lock); 685 686 buffer_done: 687 len = strnlen(buf, PAGE_SIZE); 688 689 if (unlikely(len >= (PAGE_SIZE - 1))) { 690 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 691 "6314 Catching potential buffer " 692 "overflow > PAGE_SIZE = %lu bytes\n", 693 PAGE_SIZE); 694 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 695 LPFC_INFO_MORE_STR, 696 sizeof(LPFC_INFO_MORE_STR) + 1); 697 } 698 699 return len; 700 } 701 702 static ssize_t 703 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 704 char *buf) 705 { 706 struct Scsi_Host *shost = class_to_shost(dev); 707 struct lpfc_vport *vport = shost_priv(shost); 708 struct lpfc_hba *phba = vport->phba; 709 int len; 710 struct lpfc_fc4_ctrl_stat *cstat; 711 u64 data1, data2, data3; 712 u64 tot, totin, totout; 713 int i; 714 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 715 716 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 717 (phba->sli_rev != LPFC_SLI_REV4)) 718 return 0; 719 720 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 721 722 totin = 0; 723 totout = 0; 724 for (i = 0; i < phba->cfg_hdw_queue; i++) { 725 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 726 tot = cstat->io_cmpls; 727 totin += tot; 728 data1 = cstat->input_requests; 729 data2 = cstat->output_requests; 730 data3 = cstat->control_requests; 731 totout += (data1 + data2 + data3); 732 733 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 734 "IO %016llx ", i, data1, data2, data3); 735 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 736 goto buffer_done; 737 738 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 739 tot, ((data1 + data2 + data3) - tot)); 740 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 741 goto buffer_done; 742 } 743 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 744 "OutIO %016llx\n", totin, totout, totout - totin); 745 strlcat(buf, tmp, PAGE_SIZE); 746 747 buffer_done: 748 len = strnlen(buf, PAGE_SIZE); 749 750 return len; 751 } 752 753 static ssize_t 754 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 755 char *buf) 756 { 757 struct Scsi_Host *shost = class_to_shost(dev); 758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 759 struct lpfc_hba *phba = vport->phba; 760 761 if (phba->cfg_enable_bg) { 762 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 763 return scnprintf(buf, PAGE_SIZE, 764 "BlockGuard Enabled\n"); 765 else 766 return scnprintf(buf, PAGE_SIZE, 767 "BlockGuard Not Supported\n"); 768 } else 769 return scnprintf(buf, PAGE_SIZE, 770 "BlockGuard Disabled\n"); 771 } 772 773 static ssize_t 774 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 775 char *buf) 776 { 777 struct Scsi_Host *shost = class_to_shost(dev); 778 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 779 struct lpfc_hba *phba = vport->phba; 780 781 return scnprintf(buf, PAGE_SIZE, "%llu\n", 782 (unsigned long long)phba->bg_guard_err_cnt); 783 } 784 785 static ssize_t 786 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 787 char *buf) 788 { 789 struct Scsi_Host *shost = class_to_shost(dev); 790 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 791 struct lpfc_hba *phba = vport->phba; 792 793 return scnprintf(buf, PAGE_SIZE, "%llu\n", 794 (unsigned long long)phba->bg_apptag_err_cnt); 795 } 796 797 static ssize_t 798 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 799 char *buf) 800 { 801 struct Scsi_Host *shost = class_to_shost(dev); 802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 803 struct lpfc_hba *phba = vport->phba; 804 805 return scnprintf(buf, PAGE_SIZE, "%llu\n", 806 (unsigned long long)phba->bg_reftag_err_cnt); 807 } 808 809 /** 810 * lpfc_info_show - Return some pci info about the host in ascii 811 * @dev: class converted to a Scsi_host structure. 812 * @attr: device attribute, not used. 813 * @buf: on return contains the formatted text from lpfc_info(). 814 * 815 * Returns: size of formatted string. 816 **/ 817 static ssize_t 818 lpfc_info_show(struct device *dev, struct device_attribute *attr, 819 char *buf) 820 { 821 struct Scsi_Host *host = class_to_shost(dev); 822 823 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 824 } 825 826 /** 827 * lpfc_serialnum_show - Return the hba serial number in ascii 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the formatted text serial number. 831 * 832 * Returns: size of formatted string. 833 **/ 834 static ssize_t 835 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 836 char *buf) 837 { 838 struct Scsi_Host *shost = class_to_shost(dev); 839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 840 struct lpfc_hba *phba = vport->phba; 841 842 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 843 } 844 845 /** 846 * lpfc_temp_sensor_show - Return the temperature sensor level 847 * @dev: class converted to a Scsi_host structure. 848 * @attr: device attribute, not used. 849 * @buf: on return contains the formatted support level. 850 * 851 * Description: 852 * Returns a number indicating the temperature sensor level currently 853 * supported, zero or one in ascii. 854 * 855 * Returns: size of formatted string. 856 **/ 857 static ssize_t 858 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 859 char *buf) 860 { 861 struct Scsi_Host *shost = class_to_shost(dev); 862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 863 struct lpfc_hba *phba = vport->phba; 864 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 865 } 866 867 /** 868 * lpfc_modeldesc_show - Return the model description of the hba 869 * @dev: class converted to a Scsi_host structure. 870 * @attr: device attribute, not used. 871 * @buf: on return contains the scsi vpd model description. 872 * 873 * Returns: size of formatted string. 874 **/ 875 static ssize_t 876 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878 { 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 883 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 884 } 885 886 /** 887 * lpfc_modelname_show - Return the model name of the hba 888 * @dev: class converted to a Scsi_host structure. 889 * @attr: device attribute, not used. 890 * @buf: on return contains the scsi vpd model name. 891 * 892 * Returns: size of formatted string. 893 **/ 894 static ssize_t 895 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 896 char *buf) 897 { 898 struct Scsi_Host *shost = class_to_shost(dev); 899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 900 struct lpfc_hba *phba = vport->phba; 901 902 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 903 } 904 905 /** 906 * lpfc_programtype_show - Return the program type of the hba 907 * @dev: class converted to a Scsi_host structure. 908 * @attr: device attribute, not used. 909 * @buf: on return contains the scsi vpd program type. 910 * 911 * Returns: size of formatted string. 912 **/ 913 static ssize_t 914 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 915 char *buf) 916 { 917 struct Scsi_Host *shost = class_to_shost(dev); 918 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 919 struct lpfc_hba *phba = vport->phba; 920 921 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 922 } 923 924 /** 925 * lpfc_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 **/ 932 static ssize_t 933 lpfc_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 **/ 951 static ssize_t 952 lpfc_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 **/ 985 static ssize_t 986 lpfc_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 **/ 1007 static ssize_t 1008 lpfc_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 **/ 1035 static ssize_t 1036 lpfc_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 **/ 1167 static ssize_t 1168 lpfc_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 **/ 1196 static ssize_t 1197 lpfc_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 **/ 1220 static ssize_t 1221 lpfc_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 **/ 1255 static ssize_t 1256 lpfc_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 **/ 1280 static int 1281 lpfc_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 1336 int 1337 lpfc_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 **/ 1372 static int 1373 lpfc_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 } 1430 out: 1431 spin_lock_irq(&phba->hbalock); 1432 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1433 spin_unlock_irq(&phba->hbalock); 1434 1435 skip_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 */ 1469 static int 1470 lpfc_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 **/ 1542 int 1543 lpfc_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 **/ 1594 static ssize_t 1595 lpfc_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 **/ 1631 int 1632 lpfc_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 **/ 1686 static ssize_t 1687 lpfc_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 } 1783 out: 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 **/ 1816 static ssize_t 1817 lpfc_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 1827 static int 1828 lpfc_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 1886 static ssize_t 1887 lpfc_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 if (!rdp_context) { 1908 len = scnprintf(buf, PAGE_SIZE - len, 1909 "SPF info NA: alloc failure\n"); 1910 return len; 1911 } 1912 1913 rc = lpfc_get_sfp_info_wait(phba, rdp_context); 1914 if (rc) { 1915 len = scnprintf(buf, PAGE_SIZE - len, "SFP info NA:\n"); 1916 goto out_free_rdp; 1917 } 1918 1919 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16); 1920 1921 len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf); 1922 len += scnprintf(buf + len, PAGE_SIZE - len, 1923 "VendorOUI:\t%02x-%02x-%02x\n", 1924 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI], 1925 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1], 1926 (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]); 1927 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16); 1928 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf); 1929 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16); 1930 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf); 1931 strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4); 1932 len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf); 1933 strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8); 1934 len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf); 1935 len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n", 1936 (uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]); 1937 len += scnprintf(buf + len, PAGE_SIZE - len, "ExtIdentifier:\t%xh\n", 1938 (uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]); 1939 len += scnprintf(buf + len, PAGE_SIZE - len, "Connector:\t%xh\n", 1940 (uint8_t)rdp_context->page_a0[SSF_CONNECTOR]); 1941 wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) | 1942 rdp_context->page_a0[SSF_WAVELENGTH_B0]; 1943 1944 len += scnprintf(buf + len, PAGE_SIZE - len, "Wavelength:\t%d nm\n", 1945 wavelength); 1946 trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *) 1947 &rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7]; 1948 1949 len += scnprintf(buf + len, PAGE_SIZE - len, "Speeds: \t"); 1950 if (*(uint8_t *)trasn_code_byte7 == 0) { 1951 len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); 1952 } else { 1953 if (trasn_code_byte7->fc_sp_100MB) 1954 len += scnprintf(buf + len, PAGE_SIZE - len, "1 "); 1955 if (trasn_code_byte7->fc_sp_200mb) 1956 len += scnprintf(buf + len, PAGE_SIZE - len, "2 "); 1957 if (trasn_code_byte7->fc_sp_400MB) 1958 len += scnprintf(buf + len, PAGE_SIZE - len, "4 "); 1959 if (trasn_code_byte7->fc_sp_800MB) 1960 len += scnprintf(buf + len, PAGE_SIZE - len, "8 "); 1961 if (trasn_code_byte7->fc_sp_1600MB) 1962 len += scnprintf(buf + len, PAGE_SIZE - len, "16 "); 1963 if (trasn_code_byte7->fc_sp_3200MB) 1964 len += scnprintf(buf + len, PAGE_SIZE - len, "32 "); 1965 if (trasn_code_byte7->speed_chk_ecc) 1966 len += scnprintf(buf + len, PAGE_SIZE - len, "64 "); 1967 len += scnprintf(buf + len, PAGE_SIZE - len, "GB\n"); 1968 } 1969 temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 | 1970 rdp_context->page_a2[SFF_TEMPERATURE_B0]); 1971 vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 | 1972 rdp_context->page_a2[SFF_VCC_B0]); 1973 tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 | 1974 rdp_context->page_a2[SFF_TXPOWER_B0]); 1975 tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | 1976 rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]); 1977 rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 | 1978 rdp_context->page_a2[SFF_RXPOWER_B0]); 1979 1980 len += scnprintf(buf + len, PAGE_SIZE - len, 1981 "Temperature:\tx%04x C\n", temperature); 1982 len += scnprintf(buf + len, PAGE_SIZE - len, "Vcc:\t\tx%04x V\n", vcc); 1983 len += scnprintf(buf + len, PAGE_SIZE - len, 1984 "TxBiasCurrent:\tx%04x mA\n", tx_bias); 1985 len += scnprintf(buf + len, PAGE_SIZE - len, "TxPower:\tx%04x mW\n", 1986 tx_power); 1987 len += scnprintf(buf + len, PAGE_SIZE - len, "RxPower:\tx%04x mW\n", 1988 rx_power); 1989 out_free_rdp: 1990 kfree(rdp_context); 1991 return len; 1992 } 1993 1994 /** 1995 * lpfc_board_mode_show - Return the state of the board 1996 * @dev: class device that is converted into a Scsi_host. 1997 * @attr: device attribute, not used. 1998 * @buf: on return contains the state of the adapter. 1999 * 2000 * Returns: size of formatted string. 2001 **/ 2002 static ssize_t 2003 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 2004 char *buf) 2005 { 2006 struct Scsi_Host *shost = class_to_shost(dev); 2007 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2008 struct lpfc_hba *phba = vport->phba; 2009 char * state; 2010 2011 if (phba->link_state == LPFC_HBA_ERROR) 2012 state = "error"; 2013 else if (phba->link_state == LPFC_WARM_START) 2014 state = "warm start"; 2015 else if (phba->link_state == LPFC_INIT_START) 2016 state = "offline"; 2017 else 2018 state = "online"; 2019 2020 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 2021 } 2022 2023 /** 2024 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 2025 * @dev: class device that is converted into a Scsi_host. 2026 * @attr: device attribute, not used. 2027 * @buf: containing one of the strings "online", "offline", "warm" or "error". 2028 * @count: unused variable. 2029 * 2030 * Returns: 2031 * -EACCES if enable hba reset not enabled 2032 * -EINVAL if the buffer does not contain a valid string (see above) 2033 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 2034 * buf length greater than zero indicates success 2035 **/ 2036 static ssize_t 2037 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 2038 const char *buf, size_t count) 2039 { 2040 struct Scsi_Host *shost = class_to_shost(dev); 2041 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2042 struct lpfc_hba *phba = vport->phba; 2043 struct completion online_compl; 2044 char *board_mode_str = NULL; 2045 int status = 0; 2046 int rc; 2047 2048 if (!phba->cfg_enable_hba_reset) { 2049 status = -EACCES; 2050 goto board_mode_out; 2051 } 2052 2053 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2054 "3050 lpfc_board_mode set to %s\n", buf); 2055 2056 init_completion(&online_compl); 2057 2058 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 2059 rc = lpfc_workq_post_event(phba, &status, &online_compl, 2060 LPFC_EVT_ONLINE); 2061 if (rc == 0) { 2062 status = -ENOMEM; 2063 goto board_mode_out; 2064 } 2065 wait_for_completion(&online_compl); 2066 if (status) 2067 status = -EIO; 2068 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 2069 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2070 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 2071 if (phba->sli_rev == LPFC_SLI_REV4) 2072 status = -EINVAL; 2073 else 2074 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 2075 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 2076 if (phba->sli_rev == LPFC_SLI_REV4) 2077 status = -EINVAL; 2078 else 2079 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 2080 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 2081 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 2082 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 2083 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 2084 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 2085 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 2086 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 2087 == 0) 2088 status = lpfc_reset_pci_bus(phba); 2089 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 2090 lpfc_issue_hb_tmo(phba); 2091 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 2092 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 2093 else 2094 status = -EINVAL; 2095 2096 board_mode_out: 2097 if (!status) 2098 return strlen(buf); 2099 else { 2100 board_mode_str = strchr(buf, '\n'); 2101 if (board_mode_str) 2102 *board_mode_str = '\0'; 2103 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2104 "3097 Failed \"%s\", status(%d), " 2105 "fc_flag(x%x)\n", 2106 buf, status, phba->pport->fc_flag); 2107 return status; 2108 } 2109 } 2110 2111 /** 2112 * lpfc_get_hba_info - Return various bits of informaton about the adapter 2113 * @phba: pointer to the adapter structure. 2114 * @mxri: max xri count. 2115 * @axri: available xri count. 2116 * @mrpi: max rpi count. 2117 * @arpi: available rpi count. 2118 * @mvpi: max vpi count. 2119 * @avpi: available vpi count. 2120 * 2121 * Description: 2122 * If an integer pointer for an count is not null then the value for the 2123 * count is returned. 2124 * 2125 * Returns: 2126 * zero on error 2127 * one for success 2128 **/ 2129 static int 2130 lpfc_get_hba_info(struct lpfc_hba *phba, 2131 uint32_t *mxri, uint32_t *axri, 2132 uint32_t *mrpi, uint32_t *arpi, 2133 uint32_t *mvpi, uint32_t *avpi) 2134 { 2135 LPFC_MBOXQ_t *pmboxq; 2136 MAILBOX_t *pmb; 2137 int rc = 0; 2138 struct lpfc_sli4_hba *sli4_hba; 2139 struct lpfc_max_cfg_param *max_cfg_param; 2140 u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi; 2141 2142 /* 2143 * prevent udev from issuing mailbox commands until the port is 2144 * configured. 2145 */ 2146 if (phba->link_state < LPFC_LINK_DOWN || 2147 !phba->mbox_mem_pool || 2148 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2149 return 0; 2150 2151 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2152 return 0; 2153 2154 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2155 if (!pmboxq) 2156 return 0; 2157 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2158 2159 pmb = &pmboxq->u.mb; 2160 pmb->mbxCommand = MBX_READ_CONFIG; 2161 pmb->mbxOwner = OWN_HOST; 2162 pmboxq->ctx_buf = NULL; 2163 2164 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2165 rc = MBX_NOT_FINISHED; 2166 else 2167 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2168 2169 if (rc != MBX_SUCCESS) { 2170 if (rc != MBX_TIMEOUT) 2171 mempool_free(pmboxq, phba->mbox_mem_pool); 2172 return 0; 2173 } 2174 2175 if (phba->sli_rev == LPFC_SLI_REV4) { 2176 sli4_hba = &phba->sli4_hba; 2177 max_cfg_param = &sli4_hba->max_cfg_param; 2178 2179 /* Normally, extents are not used */ 2180 if (!phba->sli4_hba.extents_in_use) { 2181 if (mrpi) 2182 *mrpi = max_cfg_param->max_rpi; 2183 if (mxri) 2184 *mxri = max_cfg_param->max_xri; 2185 if (mvpi) { 2186 max_vpi = max_cfg_param->max_vpi; 2187 2188 /* Limit the max we support */ 2189 if (max_vpi > LPFC_MAX_VPI) 2190 max_vpi = LPFC_MAX_VPI; 2191 *mvpi = max_vpi; 2192 } 2193 } else { /* Extents in use */ 2194 if (mrpi) { 2195 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2196 LPFC_RSC_TYPE_FCOE_RPI, 2197 &rsrc_ext_cnt, 2198 &rsrc_ext_size)) { 2199 rc = 0; 2200 goto free_pmboxq; 2201 } 2202 2203 *mrpi = rsrc_ext_cnt * rsrc_ext_size; 2204 } 2205 2206 if (mxri) { 2207 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2208 LPFC_RSC_TYPE_FCOE_XRI, 2209 &rsrc_ext_cnt, 2210 &rsrc_ext_size)) { 2211 rc = 0; 2212 goto free_pmboxq; 2213 } 2214 2215 *mxri = rsrc_ext_cnt * rsrc_ext_size; 2216 } 2217 2218 if (mvpi) { 2219 if (lpfc_sli4_get_avail_extnt_rsrc(phba, 2220 LPFC_RSC_TYPE_FCOE_VPI, 2221 &rsrc_ext_cnt, 2222 &rsrc_ext_size)) { 2223 rc = 0; 2224 goto free_pmboxq; 2225 } 2226 2227 max_vpi = rsrc_ext_cnt * rsrc_ext_size; 2228 2229 /* Limit the max we support */ 2230 if (max_vpi > LPFC_MAX_VPI) 2231 max_vpi = LPFC_MAX_VPI; 2232 *mvpi = max_vpi; 2233 } 2234 } 2235 } else { 2236 if (mrpi) 2237 *mrpi = pmb->un.varRdConfig.max_rpi; 2238 if (arpi) 2239 *arpi = pmb->un.varRdConfig.avail_rpi; 2240 if (mxri) 2241 *mxri = pmb->un.varRdConfig.max_xri; 2242 if (axri) 2243 *axri = pmb->un.varRdConfig.avail_xri; 2244 if (mvpi) 2245 *mvpi = pmb->un.varRdConfig.max_vpi; 2246 if (avpi) { 2247 /* avail_vpi is only valid if link is up and ready */ 2248 if (phba->link_state == LPFC_HBA_READY) 2249 *avpi = pmb->un.varRdConfig.avail_vpi; 2250 else 2251 *avpi = pmb->un.varRdConfig.max_vpi; 2252 } 2253 } 2254 2255 /* Success */ 2256 rc = 1; 2257 2258 free_pmboxq: 2259 mempool_free(pmboxq, phba->mbox_mem_pool); 2260 return rc; 2261 } 2262 2263 /** 2264 * lpfc_max_rpi_show - Return maximum rpi 2265 * @dev: class device that is converted into a Scsi_host. 2266 * @attr: device attribute, not used. 2267 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2268 * 2269 * Description: 2270 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2271 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2272 * to "Unknown" and the buffer length is returned, therefore the caller 2273 * must check for "Unknown" in the buffer to detect a failure. 2274 * 2275 * Returns: size of formatted string. 2276 **/ 2277 static ssize_t 2278 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2279 char *buf) 2280 { 2281 struct Scsi_Host *shost = class_to_shost(dev); 2282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2283 struct lpfc_hba *phba = vport->phba; 2284 uint32_t cnt; 2285 2286 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2287 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2288 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2289 } 2290 2291 /** 2292 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2293 * @dev: class device that is converted into a Scsi_host. 2294 * @attr: device attribute, not used. 2295 * @buf: containing the used rpi count in decimal or "Unknown". 2296 * 2297 * Description: 2298 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 2299 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2300 * to "Unknown" and the buffer length is returned, therefore the caller 2301 * must check for "Unknown" in the buffer to detect a failure. 2302 * 2303 * Returns: size of formatted string. 2304 **/ 2305 static ssize_t 2306 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 2307 char *buf) 2308 { 2309 struct Scsi_Host *shost = class_to_shost(dev); 2310 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2311 struct lpfc_hba *phba = vport->phba; 2312 struct lpfc_sli4_hba *sli4_hba; 2313 struct lpfc_max_cfg_param *max_cfg_param; 2314 u32 cnt = 0, acnt = 0; 2315 2316 if (phba->sli_rev == LPFC_SLI_REV4) { 2317 sli4_hba = &phba->sli4_hba; 2318 max_cfg_param = &sli4_hba->max_cfg_param; 2319 return scnprintf(buf, PAGE_SIZE, "%d\n", 2320 max_cfg_param->rpi_used); 2321 } else { 2322 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2323 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2324 } 2325 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2326 } 2327 2328 /** 2329 * lpfc_max_xri_show - Return maximum xri 2330 * @dev: class device that is converted into a Scsi_host. 2331 * @attr: device attribute, not used. 2332 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2333 * 2334 * Description: 2335 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2336 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2337 * to "Unknown" and the buffer length is returned, therefore the caller 2338 * must check for "Unknown" in the buffer to detect a failure. 2339 * 2340 * Returns: size of formatted string. 2341 **/ 2342 static ssize_t 2343 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2344 char *buf) 2345 { 2346 struct Scsi_Host *shost = class_to_shost(dev); 2347 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2348 struct lpfc_hba *phba = vport->phba; 2349 uint32_t cnt; 2350 2351 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2352 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2353 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2354 } 2355 2356 /** 2357 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2358 * @dev: class device that is converted into a Scsi_host. 2359 * @attr: device attribute, not used. 2360 * @buf: on return contains the used xri count in decimal or "Unknown". 2361 * 2362 * Description: 2363 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2364 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2365 * to "Unknown" and the buffer length is returned, therefore the caller 2366 * must check for "Unknown" in the buffer to detect a failure. 2367 * 2368 * Returns: size of formatted string. 2369 **/ 2370 static ssize_t 2371 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2372 char *buf) 2373 { 2374 struct Scsi_Host *shost = class_to_shost(dev); 2375 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2376 struct lpfc_hba *phba = vport->phba; 2377 struct lpfc_sli4_hba *sli4_hba; 2378 struct lpfc_max_cfg_param *max_cfg_param; 2379 u32 cnt = 0, acnt = 0; 2380 2381 if (phba->sli_rev == LPFC_SLI_REV4) { 2382 sli4_hba = &phba->sli4_hba; 2383 max_cfg_param = &sli4_hba->max_cfg_param; 2384 return scnprintf(buf, PAGE_SIZE, "%d\n", 2385 max_cfg_param->xri_used); 2386 } else { 2387 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2388 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2389 } 2390 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2391 } 2392 2393 /** 2394 * lpfc_max_vpi_show - Return maximum vpi 2395 * @dev: class device that is converted into a Scsi_host. 2396 * @attr: device attribute, not used. 2397 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2398 * 2399 * Description: 2400 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2401 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2402 * to "Unknown" and the buffer length is returned, therefore the caller 2403 * must check for "Unknown" in the buffer to detect a failure. 2404 * 2405 * Returns: size of formatted string. 2406 **/ 2407 static ssize_t 2408 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2409 char *buf) 2410 { 2411 struct Scsi_Host *shost = class_to_shost(dev); 2412 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2413 struct lpfc_hba *phba = vport->phba; 2414 uint32_t cnt; 2415 2416 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2417 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2418 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2419 } 2420 2421 /** 2422 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2423 * @dev: class device that is converted into a Scsi_host. 2424 * @attr: device attribute, not used. 2425 * @buf: on return contains the used vpi count in decimal or "Unknown". 2426 * 2427 * Description: 2428 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2429 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2430 * to "Unknown" and the buffer length is returned, therefore the caller 2431 * must check for "Unknown" in the buffer to detect a failure. 2432 * 2433 * Returns: size of formatted string. 2434 **/ 2435 static ssize_t 2436 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2437 char *buf) 2438 { 2439 struct Scsi_Host *shost = class_to_shost(dev); 2440 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2441 struct lpfc_hba *phba = vport->phba; 2442 struct lpfc_sli4_hba *sli4_hba; 2443 struct lpfc_max_cfg_param *max_cfg_param; 2444 u32 cnt = 0, acnt = 0; 2445 2446 if (phba->sli_rev == LPFC_SLI_REV4) { 2447 sli4_hba = &phba->sli4_hba; 2448 max_cfg_param = &sli4_hba->max_cfg_param; 2449 return scnprintf(buf, PAGE_SIZE, "%d\n", 2450 max_cfg_param->vpi_used); 2451 } else { 2452 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2453 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2454 } 2455 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2456 } 2457 2458 /** 2459 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2460 * @dev: class device that is converted into a Scsi_host. 2461 * @attr: device attribute, not used. 2462 * @buf: text that must be interpreted to determine if npiv is supported. 2463 * 2464 * Description: 2465 * Buffer will contain text indicating npiv is not suppoerted on the port, 2466 * the port is an NPIV physical port, or it is an npiv virtual port with 2467 * the id of the vport. 2468 * 2469 * Returns: size of formatted string. 2470 **/ 2471 static ssize_t 2472 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2473 char *buf) 2474 { 2475 struct Scsi_Host *shost = class_to_shost(dev); 2476 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2477 struct lpfc_hba *phba = vport->phba; 2478 2479 if (!(phba->max_vpi)) 2480 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2481 if (vport->port_type == LPFC_PHYSICAL_PORT) 2482 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2483 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2484 } 2485 2486 /** 2487 * lpfc_poll_show - Return text about poll support for the adapter 2488 * @dev: class device that is converted into a Scsi_host. 2489 * @attr: device attribute, not used. 2490 * @buf: on return contains the cfg_poll in hex. 2491 * 2492 * Notes: 2493 * cfg_poll should be a lpfc_polling_flags type. 2494 * 2495 * Returns: size of formatted string. 2496 **/ 2497 static ssize_t 2498 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2499 char *buf) 2500 { 2501 struct Scsi_Host *shost = class_to_shost(dev); 2502 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2503 struct lpfc_hba *phba = vport->phba; 2504 2505 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2506 } 2507 2508 /** 2509 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2510 * @dev: class device that is converted into a Scsi_host. 2511 * @attr: device attribute, not used. 2512 * @buf: one or more lpfc_polling_flags values. 2513 * @count: not used. 2514 * 2515 * Notes: 2516 * buf contents converted to integer and checked for a valid value. 2517 * 2518 * Returns: 2519 * -EINVAL if the buffer connot be converted or is out of range 2520 * length of the buf on success 2521 **/ 2522 static ssize_t 2523 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2524 const char *buf, size_t count) 2525 { 2526 struct Scsi_Host *shost = class_to_shost(dev); 2527 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2528 struct lpfc_hba *phba = vport->phba; 2529 uint32_t creg_val; 2530 uint32_t old_val; 2531 int val=0; 2532 2533 if (!isdigit(buf[0])) 2534 return -EINVAL; 2535 2536 if (sscanf(buf, "%i", &val) != 1) 2537 return -EINVAL; 2538 2539 if ((val & 0x3) != val) 2540 return -EINVAL; 2541 2542 if (phba->sli_rev == LPFC_SLI_REV4) 2543 val = 0; 2544 2545 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2546 "3051 lpfc_poll changed from %d to %d\n", 2547 phba->cfg_poll, val); 2548 2549 spin_lock_irq(&phba->hbalock); 2550 2551 old_val = phba->cfg_poll; 2552 2553 if (val & ENABLE_FCP_RING_POLLING) { 2554 if ((val & DISABLE_FCP_RING_INT) && 2555 !(old_val & DISABLE_FCP_RING_INT)) { 2556 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2557 spin_unlock_irq(&phba->hbalock); 2558 return -EINVAL; 2559 } 2560 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2561 writel(creg_val, phba->HCregaddr); 2562 readl(phba->HCregaddr); /* flush */ 2563 2564 lpfc_poll_start_timer(phba); 2565 } 2566 } else if (val != 0x0) { 2567 spin_unlock_irq(&phba->hbalock); 2568 return -EINVAL; 2569 } 2570 2571 if (!(val & DISABLE_FCP_RING_INT) && 2572 (old_val & DISABLE_FCP_RING_INT)) 2573 { 2574 spin_unlock_irq(&phba->hbalock); 2575 del_timer(&phba->fcp_poll_timer); 2576 spin_lock_irq(&phba->hbalock); 2577 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2578 spin_unlock_irq(&phba->hbalock); 2579 return -EINVAL; 2580 } 2581 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2582 writel(creg_val, phba->HCregaddr); 2583 readl(phba->HCregaddr); /* flush */ 2584 } 2585 2586 phba->cfg_poll = val; 2587 2588 spin_unlock_irq(&phba->hbalock); 2589 2590 return strlen(buf); 2591 } 2592 2593 /** 2594 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2595 * @dev: class converted to a Scsi_host structure. 2596 * @attr: device attribute, not used. 2597 * @buf: on return contains the formatted support level. 2598 * 2599 * Description: 2600 * Returns the maximum number of virtual functions a physical function can 2601 * support, 0 will be returned if called on virtual function. 2602 * 2603 * Returns: size of formatted string. 2604 **/ 2605 static ssize_t 2606 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2607 struct device_attribute *attr, 2608 char *buf) 2609 { 2610 struct Scsi_Host *shost = class_to_shost(dev); 2611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2612 struct lpfc_hba *phba = vport->phba; 2613 uint16_t max_nr_virtfn; 2614 2615 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2616 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2617 } 2618 2619 /** 2620 * lpfc_enable_bbcr_set: Sets an attribute value. 2621 * @phba: pointer to the adapter structure. 2622 * @val: integer attribute value. 2623 * 2624 * Description: 2625 * Validates the min and max values then sets the 2626 * adapter config field if in the valid range. prints error message 2627 * and does not set the parameter if invalid. 2628 * 2629 * Returns: 2630 * zero on success 2631 * -EINVAL if val is invalid 2632 */ 2633 static ssize_t 2634 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2635 { 2636 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2638 "3068 lpfc_enable_bbcr changed from %d to " 2639 "%d\n", phba->cfg_enable_bbcr, val); 2640 phba->cfg_enable_bbcr = val; 2641 return 0; 2642 } 2643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2644 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2645 "1\n", val); 2646 return -EINVAL; 2647 } 2648 2649 /* 2650 * lpfc_param_show - Return a cfg attribute value in decimal 2651 * 2652 * Description: 2653 * Macro that given an attr e.g. hba_queue_depth expands 2654 * into a function with the name lpfc_hba_queue_depth_show. 2655 * 2656 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2657 * @dev: class device that is converted into a Scsi_host. 2658 * @attr: device attribute, not used. 2659 * @buf: on return contains the attribute value in decimal. 2660 * 2661 * Returns: size of formatted string. 2662 **/ 2663 #define lpfc_param_show(attr) \ 2664 static ssize_t \ 2665 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2666 char *buf) \ 2667 { \ 2668 struct Scsi_Host *shost = class_to_shost(dev);\ 2669 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2670 struct lpfc_hba *phba = vport->phba;\ 2671 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2672 phba->cfg_##attr);\ 2673 } 2674 2675 /* 2676 * lpfc_param_hex_show - Return a cfg attribute value in hex 2677 * 2678 * Description: 2679 * Macro that given an attr e.g. hba_queue_depth expands 2680 * into a function with the name lpfc_hba_queue_depth_show 2681 * 2682 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2683 * @dev: class device that is converted into a Scsi_host. 2684 * @attr: device attribute, not used. 2685 * @buf: on return contains the attribute value in hexadecimal. 2686 * 2687 * Returns: size of formatted string. 2688 **/ 2689 #define lpfc_param_hex_show(attr) \ 2690 static ssize_t \ 2691 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2692 char *buf) \ 2693 { \ 2694 struct Scsi_Host *shost = class_to_shost(dev);\ 2695 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2696 struct lpfc_hba *phba = vport->phba;\ 2697 uint val = 0;\ 2698 val = phba->cfg_##attr;\ 2699 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2700 phba->cfg_##attr);\ 2701 } 2702 2703 /* 2704 * lpfc_param_init - Initializes a cfg attribute 2705 * 2706 * Description: 2707 * Macro that given an attr e.g. hba_queue_depth expands 2708 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2709 * takes a default argument, a minimum and maximum argument. 2710 * 2711 * lpfc_##attr##_init: Initializes an attribute. 2712 * @phba: pointer to the adapter structure. 2713 * @val: integer attribute value. 2714 * 2715 * Validates the min and max values then sets the adapter config field 2716 * accordingly, or uses the default if out of range and prints an error message. 2717 * 2718 * Returns: 2719 * zero on success 2720 * -EINVAL if default used 2721 **/ 2722 #define lpfc_param_init(attr, default, minval, maxval) \ 2723 static int \ 2724 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2725 { \ 2726 if (lpfc_rangecheck(val, minval, maxval)) {\ 2727 phba->cfg_##attr = val;\ 2728 return 0;\ 2729 }\ 2730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2731 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2732 "allowed range is ["#minval", "#maxval"]\n", val); \ 2733 phba->cfg_##attr = default;\ 2734 return -EINVAL;\ 2735 } 2736 2737 /* 2738 * lpfc_param_set - Set a cfg attribute value 2739 * 2740 * Description: 2741 * Macro that given an attr e.g. hba_queue_depth expands 2742 * into a function with the name lpfc_hba_queue_depth_set 2743 * 2744 * lpfc_##attr##_set: Sets an attribute value. 2745 * @phba: pointer to the adapter structure. 2746 * @val: integer attribute value. 2747 * 2748 * Description: 2749 * Validates the min and max values then sets the 2750 * adapter config field if in the valid range. prints error message 2751 * and does not set the parameter if invalid. 2752 * 2753 * Returns: 2754 * zero on success 2755 * -EINVAL if val is invalid 2756 **/ 2757 #define lpfc_param_set(attr, default, minval, maxval) \ 2758 static int \ 2759 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2760 { \ 2761 if (lpfc_rangecheck(val, minval, maxval)) {\ 2762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2763 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2764 phba->cfg_##attr, val); \ 2765 phba->cfg_##attr = val;\ 2766 return 0;\ 2767 }\ 2768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2769 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2770 "allowed range is ["#minval", "#maxval"]\n", val); \ 2771 return -EINVAL;\ 2772 } 2773 2774 /* 2775 * lpfc_param_store - Set a vport attribute value 2776 * 2777 * Description: 2778 * Macro that given an attr e.g. hba_queue_depth expands 2779 * into a function with the name lpfc_hba_queue_depth_store. 2780 * 2781 * lpfc_##attr##_store: Set an sttribute value. 2782 * @dev: class device that is converted into a Scsi_host. 2783 * @attr: device attribute, not used. 2784 * @buf: contains the attribute value in ascii. 2785 * @count: not used. 2786 * 2787 * Description: 2788 * Convert the ascii text number to an integer, then 2789 * use the lpfc_##attr##_set function to set the value. 2790 * 2791 * Returns: 2792 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2793 * length of buffer upon success. 2794 **/ 2795 #define lpfc_param_store(attr) \ 2796 static ssize_t \ 2797 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2798 const char *buf, size_t count) \ 2799 { \ 2800 struct Scsi_Host *shost = class_to_shost(dev);\ 2801 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2802 struct lpfc_hba *phba = vport->phba;\ 2803 uint val = 0;\ 2804 if (!isdigit(buf[0]))\ 2805 return -EINVAL;\ 2806 if (sscanf(buf, "%i", &val) != 1)\ 2807 return -EINVAL;\ 2808 if (lpfc_##attr##_set(phba, val) == 0) \ 2809 return strlen(buf);\ 2810 else \ 2811 return -EINVAL;\ 2812 } 2813 2814 /* 2815 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2816 * 2817 * Description: 2818 * Macro that given an attr e.g. hba_queue_depth expands 2819 * into a function with the name lpfc_hba_queue_depth_show 2820 * 2821 * lpfc_##attr##_show: prints the attribute value in decimal. 2822 * @dev: class device that is converted into a Scsi_host. 2823 * @attr: device attribute, not used. 2824 * @buf: on return contains the attribute value in decimal. 2825 * 2826 * Returns: length of formatted string. 2827 **/ 2828 #define lpfc_vport_param_show(attr) \ 2829 static ssize_t \ 2830 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2831 char *buf) \ 2832 { \ 2833 struct Scsi_Host *shost = class_to_shost(dev);\ 2834 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2835 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2836 } 2837 2838 /* 2839 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2840 * 2841 * Description: 2842 * Macro that given an attr e.g. 2843 * hba_queue_depth expands into a function with the name 2844 * lpfc_hba_queue_depth_show 2845 * 2846 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2847 * @dev: class device that is converted into a Scsi_host. 2848 * @attr: device attribute, not used. 2849 * @buf: on return contains the attribute value in hexadecimal. 2850 * 2851 * Returns: length of formatted string. 2852 **/ 2853 #define lpfc_vport_param_hex_show(attr) \ 2854 static ssize_t \ 2855 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2856 char *buf) \ 2857 { \ 2858 struct Scsi_Host *shost = class_to_shost(dev);\ 2859 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2860 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2861 } 2862 2863 /* 2864 * lpfc_vport_param_init - Initialize a vport cfg attribute 2865 * 2866 * Description: 2867 * Macro that given an attr e.g. hba_queue_depth expands 2868 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2869 * takes a default argument, a minimum and maximum argument. 2870 * 2871 * lpfc_##attr##_init: validates the min and max values then sets the 2872 * adapter config field accordingly, or uses the default if out of range 2873 * and prints an error message. 2874 * @phba: pointer to the adapter structure. 2875 * @val: integer attribute value. 2876 * 2877 * Returns: 2878 * zero on success 2879 * -EINVAL if default used 2880 **/ 2881 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2882 static int \ 2883 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2884 { \ 2885 if (lpfc_rangecheck(val, minval, maxval)) {\ 2886 vport->cfg_##attr = val;\ 2887 return 0;\ 2888 }\ 2889 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2890 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2891 "allowed range is ["#minval", "#maxval"]\n", val); \ 2892 vport->cfg_##attr = default;\ 2893 return -EINVAL;\ 2894 } 2895 2896 /* 2897 * lpfc_vport_param_set - Set a vport cfg attribute 2898 * 2899 * Description: 2900 * Macro that given an attr e.g. hba_queue_depth expands 2901 * into a function with the name lpfc_hba_queue_depth_set 2902 * 2903 * lpfc_##attr##_set: validates the min and max values then sets the 2904 * adapter config field if in the valid range. prints error message 2905 * and does not set the parameter if invalid. 2906 * @phba: pointer to the adapter structure. 2907 * @val: integer attribute value. 2908 * 2909 * Returns: 2910 * zero on success 2911 * -EINVAL if val is invalid 2912 **/ 2913 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2914 static int \ 2915 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2916 { \ 2917 if (lpfc_rangecheck(val, minval, maxval)) {\ 2918 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2919 "3053 lpfc_" #attr \ 2920 " changed from %d (x%x) to %d (x%x)\n", \ 2921 vport->cfg_##attr, vport->cfg_##attr, \ 2922 val, val); \ 2923 vport->cfg_##attr = val;\ 2924 return 0;\ 2925 }\ 2926 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2927 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2928 "allowed range is ["#minval", "#maxval"]\n", val); \ 2929 return -EINVAL;\ 2930 } 2931 2932 /* 2933 * lpfc_vport_param_store - Set a vport attribute 2934 * 2935 * Description: 2936 * Macro that given an attr e.g. hba_queue_depth 2937 * expands into a function with the name lpfc_hba_queue_depth_store 2938 * 2939 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2940 * use the lpfc_##attr##_set function to set the value. 2941 * @cdev: class device that is converted into a Scsi_host. 2942 * @buf: contains the attribute value in decimal. 2943 * @count: not used. 2944 * 2945 * Returns: 2946 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2947 * length of buffer upon success. 2948 **/ 2949 #define lpfc_vport_param_store(attr) \ 2950 static ssize_t \ 2951 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2952 const char *buf, size_t count) \ 2953 { \ 2954 struct Scsi_Host *shost = class_to_shost(dev);\ 2955 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2956 uint val = 0;\ 2957 if (!isdigit(buf[0]))\ 2958 return -EINVAL;\ 2959 if (sscanf(buf, "%i", &val) != 1)\ 2960 return -EINVAL;\ 2961 if (lpfc_##attr##_set(vport, val) == 0) \ 2962 return strlen(buf);\ 2963 else \ 2964 return -EINVAL;\ 2965 } 2966 2967 2968 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2969 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2970 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2971 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2972 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2973 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2974 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2975 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2976 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2977 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2978 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2979 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2980 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2981 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2982 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2983 lpfc_link_state_store); 2984 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2985 lpfc_option_rom_version_show, NULL); 2986 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2987 lpfc_num_discovered_ports_show, NULL); 2988 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2989 static DEVICE_ATTR_RO(lpfc_drvr_version); 2990 static DEVICE_ATTR_RO(lpfc_enable_fip); 2991 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2992 lpfc_board_mode_show, lpfc_board_mode_store); 2993 static DEVICE_ATTR_RO(lpfc_xcvr_data); 2994 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2995 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2996 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2997 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2998 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2999 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 3000 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 3001 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 3002 static DEVICE_ATTR_RO(lpfc_temp_sensor); 3003 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 3004 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 3005 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 3006 NULL); 3007 static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 3008 3009 #define WWN_SZ 8 3010 /** 3011 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 3012 * @buf: WWN string. 3013 * @cnt: Length of string. 3014 * @wwn: Array to receive converted wwn value. 3015 * 3016 * Returns: 3017 * -EINVAL if the buffer does not contain a valid wwn 3018 * 0 success 3019 **/ 3020 static size_t 3021 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 3022 { 3023 unsigned int i, j; 3024 3025 /* Count may include a LF at end of string */ 3026 if (buf[cnt-1] == '\n') 3027 cnt--; 3028 3029 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 3030 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 3031 return -EINVAL; 3032 3033 memset(wwn, 0, WWN_SZ); 3034 3035 /* Validate and store the new name */ 3036 for (i = 0, j = 0; i < 16; i++) { 3037 if ((*buf >= 'a') && (*buf <= 'f')) 3038 j = ((j << 4) | ((*buf++ - 'a') + 10)); 3039 else if ((*buf >= 'A') && (*buf <= 'F')) 3040 j = ((j << 4) | ((*buf++ - 'A') + 10)); 3041 else if ((*buf >= '0') && (*buf <= '9')) 3042 j = ((j << 4) | (*buf++ - '0')); 3043 else 3044 return -EINVAL; 3045 if (i % 2) { 3046 wwn[i/2] = j & 0xff; 3047 j = 0; 3048 } 3049 } 3050 return 0; 3051 } 3052 3053 3054 /** 3055 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 3056 * Optimized Access Storage (OAS) operations. 3057 * @dev: class device that is converted into a Scsi_host. 3058 * @attr: device attribute, not used. 3059 * @buf: buffer for passing information. 3060 * 3061 * Returns: 3062 * value of count 3063 **/ 3064 static ssize_t 3065 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 3066 char *buf) 3067 { 3068 struct Scsi_Host *shost = class_to_shost(dev); 3069 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3070 3071 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3072 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3073 } 3074 3075 /** 3076 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3077 * Optimized Access Storage (OAS) operations. 3078 * @dev: class device that is converted into a Scsi_host. 3079 * @attr: device attribute, not used. 3080 * @buf: buffer for passing information. 3081 * @count: Size of the data buffer. 3082 * 3083 * Returns: 3084 * -EINVAL count is invalid, invalid wwpn byte invalid 3085 * -EPERM oas is not supported by hba 3086 * value of count on success 3087 **/ 3088 static ssize_t 3089 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3090 const char *buf, size_t count) 3091 { 3092 struct Scsi_Host *shost = class_to_shost(dev); 3093 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3094 unsigned int cnt = count; 3095 uint8_t wwpn[WWN_SZ]; 3096 int rc; 3097 3098 if (!phba->cfg_fof) 3099 return -EPERM; 3100 3101 /* count may include a LF at end of string */ 3102 if (buf[cnt-1] == '\n') 3103 cnt--; 3104 3105 rc = lpfc_wwn_set(buf, cnt, wwpn); 3106 if (rc) 3107 return rc; 3108 3109 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3110 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3111 if (wwn_to_u64(wwpn) == 0) 3112 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3113 else 3114 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3115 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3116 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3117 return count; 3118 } 3119 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3120 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3121 3122 /** 3123 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3124 * Optimized Access Storage (OAS) operations. 3125 * @dev: class device that is converted into a Scsi_host. 3126 * @attr: device attribute, not used. 3127 * @buf: buffer for passing information. 3128 * 3129 * Returns: 3130 * value of count 3131 **/ 3132 static ssize_t 3133 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3134 char *buf) 3135 { 3136 struct Scsi_Host *shost = class_to_shost(dev); 3137 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3138 3139 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3140 } 3141 3142 /** 3143 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3144 * Optimized Access Storage (OAS) operations. 3145 * @dev: class device that is converted into a Scsi_host. 3146 * @attr: device attribute, not used. 3147 * @buf: buffer for passing information. 3148 * @count: Size of the data buffer. 3149 * 3150 * Returns: 3151 * -EINVAL count is invalid, invalid wwpn byte invalid 3152 * -EPERM oas is not supported by hba 3153 * value of count on success 3154 **/ 3155 static ssize_t 3156 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3157 const char *buf, size_t count) 3158 { 3159 struct Scsi_Host *shost = class_to_shost(dev); 3160 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3161 unsigned int cnt = count; 3162 unsigned long val; 3163 int ret; 3164 3165 if (!phba->cfg_fof) 3166 return -EPERM; 3167 3168 /* count may include a LF at end of string */ 3169 if (buf[cnt-1] == '\n') 3170 cnt--; 3171 3172 ret = kstrtoul(buf, 0, &val); 3173 if (ret || (val > 0x7f)) 3174 return -EINVAL; 3175 3176 if (val) 3177 phba->cfg_oas_priority = (uint8_t)val; 3178 else 3179 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3180 return count; 3181 } 3182 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3183 lpfc_oas_priority_show, lpfc_oas_priority_store); 3184 3185 /** 3186 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3187 * for Optimized Access Storage (OAS) operations. 3188 * @dev: class device that is converted into a Scsi_host. 3189 * @attr: device attribute, not used. 3190 * @buf: buffer for passing information. 3191 * 3192 * Returns: 3193 * value of count on success 3194 **/ 3195 static ssize_t 3196 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3197 char *buf) 3198 { 3199 struct Scsi_Host *shost = class_to_shost(dev); 3200 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3201 3202 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3203 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3204 } 3205 3206 /** 3207 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3208 * for Optimized Access Storage (OAS) operations. 3209 * @dev: class device that is converted into a Scsi_host. 3210 * @attr: device attribute, not used. 3211 * @buf: buffer for passing information. 3212 * @count: Size of the data buffer. 3213 * 3214 * Returns: 3215 * -EINVAL count is invalid, invalid wwpn byte invalid 3216 * -EPERM oas is not supported by hba 3217 * value of count on success 3218 **/ 3219 static ssize_t 3220 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3221 const char *buf, size_t count) 3222 { 3223 struct Scsi_Host *shost = class_to_shost(dev); 3224 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3225 unsigned int cnt = count; 3226 uint8_t wwpn[WWN_SZ]; 3227 int rc; 3228 3229 if (!phba->cfg_fof) 3230 return -EPERM; 3231 3232 /* count may include a LF at end of string */ 3233 if (buf[cnt-1] == '\n') 3234 cnt--; 3235 3236 rc = lpfc_wwn_set(buf, cnt, wwpn); 3237 if (rc) 3238 return rc; 3239 3240 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3241 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3242 if (wwn_to_u64(wwpn) == 0) 3243 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3244 else 3245 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3246 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3247 if (phba->cfg_oas_priority == 0) 3248 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3249 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3250 return count; 3251 } 3252 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3253 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3254 3255 /** 3256 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3257 * of whether luns will be enabled or disabled 3258 * for Optimized Access Storage (OAS) operations. 3259 * @dev: class device that is converted into a Scsi_host. 3260 * @attr: device attribute, not used. 3261 * @buf: buffer for passing information. 3262 * 3263 * Returns: 3264 * size of formatted string. 3265 **/ 3266 static ssize_t 3267 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3268 char *buf) 3269 { 3270 struct Scsi_Host *shost = class_to_shost(dev); 3271 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3272 3273 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3274 } 3275 3276 /** 3277 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3278 * of whether luns will be enabled or disabled 3279 * for Optimized Access Storage (OAS) operations. 3280 * @dev: class device that is converted into a Scsi_host. 3281 * @attr: device attribute, not used. 3282 * @buf: buffer for passing information. 3283 * @count: Size of the data buffer. 3284 * 3285 * Returns: 3286 * -EINVAL count is invalid, invalid wwpn byte invalid 3287 * -EPERM oas is not supported by hba 3288 * value of count on success 3289 **/ 3290 static ssize_t 3291 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3292 const char *buf, size_t count) 3293 { 3294 struct Scsi_Host *shost = class_to_shost(dev); 3295 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3296 int val = 0; 3297 3298 if (!phba->cfg_fof) 3299 return -EPERM; 3300 3301 if (!isdigit(buf[0])) 3302 return -EINVAL; 3303 3304 if (sscanf(buf, "%i", &val) != 1) 3305 return -EINVAL; 3306 3307 if ((val != 0) && (val != 1)) 3308 return -EINVAL; 3309 3310 phba->cfg_oas_lun_state = val; 3311 return strlen(buf); 3312 } 3313 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3314 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3315 3316 /** 3317 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3318 * Storage (OAS) lun returned by the 3319 * lpfc_oas_lun_show function. 3320 * @dev: class device that is converted into a Scsi_host. 3321 * @attr: device attribute, not used. 3322 * @buf: buffer for passing information. 3323 * 3324 * Returns: 3325 * size of formatted string. 3326 **/ 3327 static ssize_t 3328 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3329 char *buf) 3330 { 3331 struct Scsi_Host *shost = class_to_shost(dev); 3332 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3333 3334 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3335 return -EFAULT; 3336 3337 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3338 } 3339 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3340 lpfc_oas_lun_status_show, NULL); 3341 3342 3343 /** 3344 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3345 * (OAS) operations. 3346 * @phba: lpfc_hba pointer. 3347 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3348 * @tgt_wwpn: wwpn of the target associated with the returned lun 3349 * @lun: the fc lun for setting oas state. 3350 * @oas_state: the oas state to be set to the lun. 3351 * @pri: priority 3352 * 3353 * Returns: 3354 * SUCCESS : 0 3355 * -EPERM OAS is not enabled or not supported by this port. 3356 * 3357 */ 3358 static size_t 3359 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3360 uint8_t tgt_wwpn[], uint64_t lun, 3361 uint32_t oas_state, uint8_t pri) 3362 { 3363 3364 int rc = 0; 3365 3366 if (!phba->cfg_fof) 3367 return -EPERM; 3368 3369 if (oas_state) { 3370 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3371 (struct lpfc_name *)tgt_wwpn, 3372 lun, pri)) 3373 rc = -ENOMEM; 3374 } else { 3375 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3376 (struct lpfc_name *)tgt_wwpn, lun, pri); 3377 } 3378 return rc; 3379 3380 } 3381 3382 /** 3383 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3384 * Access Storage (OAS) operations. 3385 * @phba: lpfc_hba pointer. 3386 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3387 * @tgt_wwpn: wwpn of the target associated with the returned lun 3388 * @lun_status: status of the lun returned lun 3389 * @lun_pri: priority of the lun returned lun 3390 * 3391 * Returns the first or next lun enabled for OAS operations for the vport/target 3392 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3393 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3394 * 3395 * Return: 3396 * lun that is OAS enabled for the vport/target 3397 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3398 */ 3399 static uint64_t 3400 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3401 uint8_t tgt_wwpn[], uint32_t *lun_status, 3402 uint32_t *lun_pri) 3403 { 3404 uint64_t found_lun; 3405 3406 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3407 return NOT_OAS_ENABLED_LUN; 3408 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3409 phba->sli4_hba.oas_next_vpt_wwpn, 3410 (struct lpfc_name *) 3411 phba->sli4_hba.oas_next_tgt_wwpn, 3412 &phba->sli4_hba.oas_next_lun, 3413 (struct lpfc_name *)vpt_wwpn, 3414 (struct lpfc_name *)tgt_wwpn, 3415 &found_lun, lun_status, lun_pri)) 3416 return found_lun; 3417 else 3418 return NOT_OAS_ENABLED_LUN; 3419 } 3420 3421 /** 3422 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3423 * @phba: lpfc_hba pointer. 3424 * @vpt_wwpn: vport wwpn by reference. 3425 * @tgt_wwpn: target wwpn by reference. 3426 * @lun: the fc lun for setting oas state. 3427 * @oas_state: the oas state to be set to the oas_lun. 3428 * @pri: priority 3429 * 3430 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3431 * a lun for OAS operations. 3432 * 3433 * Return: 3434 * SUCCESS: 0 3435 * -ENOMEM: failed to enable an lun for OAS operations 3436 * -EPERM: OAS is not enabled 3437 */ 3438 static ssize_t 3439 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3440 uint8_t tgt_wwpn[], uint64_t lun, 3441 uint32_t oas_state, uint8_t pri) 3442 { 3443 3444 int rc; 3445 3446 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3447 oas_state, pri); 3448 return rc; 3449 } 3450 3451 /** 3452 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3453 * @dev: class device that is converted into a Scsi_host. 3454 * @attr: device attribute, not used. 3455 * @buf: buffer for passing information. 3456 * 3457 * This routine returns a lun enabled for OAS each time the function 3458 * is called. 3459 * 3460 * Returns: 3461 * SUCCESS: size of formatted string. 3462 * -EFAULT: target or vport wwpn was not set properly. 3463 * -EPERM: oas is not enabled. 3464 **/ 3465 static ssize_t 3466 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3467 char *buf) 3468 { 3469 struct Scsi_Host *shost = class_to_shost(dev); 3470 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3471 3472 uint64_t oas_lun; 3473 int len = 0; 3474 3475 if (!phba->cfg_fof) 3476 return -EPERM; 3477 3478 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3479 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3480 return -EFAULT; 3481 3482 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3483 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3484 return -EFAULT; 3485 3486 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3487 phba->cfg_oas_tgt_wwpn, 3488 &phba->cfg_oas_lun_status, 3489 &phba->cfg_oas_priority); 3490 if (oas_lun != NOT_OAS_ENABLED_LUN) 3491 phba->cfg_oas_flags |= OAS_LUN_VALID; 3492 3493 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3494 3495 return len; 3496 } 3497 3498 /** 3499 * lpfc_oas_lun_store - Sets the OAS state for lun 3500 * @dev: class device that is converted into a Scsi_host. 3501 * @attr: device attribute, not used. 3502 * @buf: buffer for passing information. 3503 * @count: size of the formatting string 3504 * 3505 * This function sets the OAS state for lun. Before this function is called, 3506 * the vport wwpn, target wwpn, and oas state need to be set. 3507 * 3508 * Returns: 3509 * SUCCESS: size of formatted string. 3510 * -EFAULT: target or vport wwpn was not set properly. 3511 * -EPERM: oas is not enabled. 3512 * size of formatted string. 3513 **/ 3514 static ssize_t 3515 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3516 const char *buf, size_t count) 3517 { 3518 struct Scsi_Host *shost = class_to_shost(dev); 3519 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3520 uint64_t scsi_lun; 3521 uint32_t pri; 3522 ssize_t rc; 3523 3524 if (!phba->cfg_fof) 3525 return -EPERM; 3526 3527 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3528 return -EFAULT; 3529 3530 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3531 return -EFAULT; 3532 3533 if (!isdigit(buf[0])) 3534 return -EINVAL; 3535 3536 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3537 return -EINVAL; 3538 3539 pri = phba->cfg_oas_priority; 3540 if (pri == 0) 3541 pri = phba->cfg_XLanePriority; 3542 3543 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3544 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3545 "priority 0x%x with oas state %d\n", 3546 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3547 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3548 pri, phba->cfg_oas_lun_state); 3549 3550 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3551 phba->cfg_oas_tgt_wwpn, scsi_lun, 3552 phba->cfg_oas_lun_state, pri); 3553 if (rc) 3554 return rc; 3555 3556 return count; 3557 } 3558 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3559 lpfc_oas_lun_show, lpfc_oas_lun_store); 3560 3561 int lpfc_enable_nvmet_cnt; 3562 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3563 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3564 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3565 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3566 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3567 3568 static int lpfc_poll = 0; 3569 module_param(lpfc_poll, int, S_IRUGO); 3570 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3571 " 0 - none," 3572 " 1 - poll with interrupts enabled" 3573 " 3 - poll and disable FCP ring interrupts"); 3574 3575 static DEVICE_ATTR_RW(lpfc_poll); 3576 3577 int lpfc_no_hba_reset_cnt; 3578 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3579 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3580 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3581 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3582 3583 LPFC_ATTR(sli_mode, 3, 3, 3, 3584 "SLI mode selector: 3 - select SLI-3"); 3585 3586 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3587 "Enable NPIV functionality"); 3588 3589 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3590 "FCF Fast failover=1 Priority failover=2"); 3591 3592 /* 3593 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3594 * aborted IO. 3595 * The range is [0,1]. Default value is 0 3596 * 0, IO completes after ABTS issued (default). 3597 * 1, IO completes after receipt of ABTS response or timeout. 3598 */ 3599 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3600 3601 /* 3602 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3603 # 0x0 = disabled, XRI/OXID use not tracked. 3604 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3605 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3606 */ 3607 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3608 "Enable RRQ functionality"); 3609 3610 /* 3611 # lpfc_suppress_link_up: Bring link up at initialization 3612 # 0x0 = bring link up (issue MBX_INIT_LINK) 3613 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3614 # 0x2 = never bring up link 3615 # Default value is 0. 3616 */ 3617 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3618 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3619 "Suppress Link Up at initialization"); 3620 3621 static ssize_t 3622 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3623 { 3624 struct Scsi_Host *shost = class_to_shost(dev); 3625 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3626 3627 return scnprintf(buf, PAGE_SIZE, "%d\n", 3628 phba->sli4_hba.pc_sli4_params.pls); 3629 } 3630 static DEVICE_ATTR(pls, 0444, 3631 lpfc_pls_show, NULL); 3632 3633 static ssize_t 3634 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3635 { 3636 struct Scsi_Host *shost = class_to_shost(dev); 3637 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3638 3639 return scnprintf(buf, PAGE_SIZE, "%d\n", 3640 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3641 } 3642 static DEVICE_ATTR(pt, 0444, 3643 lpfc_pt_show, NULL); 3644 3645 /* 3646 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3647 # 1 - (1024) 3648 # 2 - (2048) 3649 # 3 - (3072) 3650 # 4 - (4096) 3651 # 5 - (5120) 3652 */ 3653 static ssize_t 3654 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3655 { 3656 struct Scsi_Host *shost = class_to_shost(dev); 3657 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3658 3659 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3660 } 3661 3662 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3663 lpfc_iocb_hw_show, NULL); 3664 static ssize_t 3665 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3666 { 3667 struct Scsi_Host *shost = class_to_shost(dev); 3668 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3669 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3670 3671 return scnprintf(buf, PAGE_SIZE, "%d\n", 3672 pring ? pring->txq_max : 0); 3673 } 3674 3675 static DEVICE_ATTR(txq_hw, S_IRUGO, 3676 lpfc_txq_hw_show, NULL); 3677 static ssize_t 3678 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3679 char *buf) 3680 { 3681 struct Scsi_Host *shost = class_to_shost(dev); 3682 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3683 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3684 3685 return scnprintf(buf, PAGE_SIZE, "%d\n", 3686 pring ? pring->txcmplq_max : 0); 3687 } 3688 3689 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3690 lpfc_txcmplq_hw_show, NULL); 3691 3692 /* 3693 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3694 # until the timer expires. Value range is [0,255]. Default value is 30. 3695 */ 3696 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3697 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3698 module_param(lpfc_nodev_tmo, int, 0); 3699 MODULE_PARM_DESC(lpfc_nodev_tmo, 3700 "Seconds driver will hold I/O waiting " 3701 "for a device to come back"); 3702 3703 /** 3704 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3705 * @dev: class converted to a Scsi_host structure. 3706 * @attr: device attribute, not used. 3707 * @buf: on return contains the dev loss timeout in decimal. 3708 * 3709 * Returns: size of formatted string. 3710 **/ 3711 static ssize_t 3712 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3713 char *buf) 3714 { 3715 struct Scsi_Host *shost = class_to_shost(dev); 3716 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3717 3718 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3719 } 3720 3721 /** 3722 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3723 * @vport: lpfc vport structure pointer. 3724 * @val: contains the nodev timeout value. 3725 * 3726 * Description: 3727 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3728 * a kernel error message is printed and zero is returned. 3729 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3730 * Otherwise nodev tmo is set to the default value. 3731 * 3732 * Returns: 3733 * zero if already set or if val is in range 3734 * -EINVAL val out of range 3735 **/ 3736 static int 3737 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3738 { 3739 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3740 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3741 if (val != LPFC_DEF_DEVLOSS_TMO) 3742 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3743 "0407 Ignoring lpfc_nodev_tmo module " 3744 "parameter because lpfc_devloss_tmo " 3745 "is set.\n"); 3746 return 0; 3747 } 3748 3749 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3750 vport->cfg_nodev_tmo = val; 3751 vport->cfg_devloss_tmo = val; 3752 return 0; 3753 } 3754 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3755 "0400 lpfc_nodev_tmo attribute cannot be set to" 3756 " %d, allowed range is [%d, %d]\n", 3757 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3758 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3759 return -EINVAL; 3760 } 3761 3762 /** 3763 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3764 * @vport: lpfc vport structure pointer. 3765 * 3766 * Description: 3767 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3768 **/ 3769 static void 3770 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3771 { 3772 struct Scsi_Host *shost; 3773 struct lpfc_nodelist *ndlp; 3774 #if (IS_ENABLED(CONFIG_NVME_FC)) 3775 struct lpfc_nvme_rport *rport; 3776 struct nvme_fc_remote_port *remoteport = NULL; 3777 #endif 3778 3779 shost = lpfc_shost_from_vport(vport); 3780 spin_lock_irq(shost->host_lock); 3781 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3782 if (ndlp->rport) 3783 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3784 #if (IS_ENABLED(CONFIG_NVME_FC)) 3785 spin_lock(&ndlp->lock); 3786 rport = lpfc_ndlp_get_nrport(ndlp); 3787 if (rport) 3788 remoteport = rport->remoteport; 3789 spin_unlock(&ndlp->lock); 3790 if (rport && remoteport) 3791 nvme_fc_set_remoteport_devloss(remoteport, 3792 vport->cfg_devloss_tmo); 3793 #endif 3794 } 3795 spin_unlock_irq(shost->host_lock); 3796 } 3797 3798 /** 3799 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3800 * @vport: lpfc vport structure pointer. 3801 * @val: contains the tmo value. 3802 * 3803 * Description: 3804 * If the devloss tmo is already set or the vport dev loss tmo has changed 3805 * then a kernel error message is printed and zero is returned. 3806 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3807 * Otherwise nodev tmo is set to the default value. 3808 * 3809 * Returns: 3810 * zero if already set or if val is in range 3811 * -EINVAL val out of range 3812 **/ 3813 static int 3814 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3815 { 3816 if (vport->dev_loss_tmo_changed || 3817 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3818 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3819 "0401 Ignoring change to lpfc_nodev_tmo " 3820 "because lpfc_devloss_tmo is set.\n"); 3821 return 0; 3822 } 3823 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3824 vport->cfg_nodev_tmo = val; 3825 vport->cfg_devloss_tmo = val; 3826 /* 3827 * For compat: set the fc_host dev loss so new rports 3828 * will get the value. 3829 */ 3830 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3831 lpfc_update_rport_devloss_tmo(vport); 3832 return 0; 3833 } 3834 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3835 "0403 lpfc_nodev_tmo attribute cannot be set to " 3836 "%d, allowed range is [%d, %d]\n", 3837 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3838 return -EINVAL; 3839 } 3840 3841 lpfc_vport_param_store(nodev_tmo) 3842 3843 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3844 3845 /* 3846 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3847 # disappear until the timer expires. Value range is [0,255]. Default 3848 # value is 30. 3849 */ 3850 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3851 MODULE_PARM_DESC(lpfc_devloss_tmo, 3852 "Seconds driver will hold I/O waiting " 3853 "for a device to come back"); 3854 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3855 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3856 lpfc_vport_param_show(devloss_tmo) 3857 3858 /** 3859 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3860 * @vport: lpfc vport structure pointer. 3861 * @val: contains the tmo value. 3862 * 3863 * Description: 3864 * If val is in a valid range then set the vport nodev tmo, 3865 * devloss tmo, also set the vport dev loss tmo changed flag. 3866 * Else a kernel error message is printed. 3867 * 3868 * Returns: 3869 * zero if val is in range 3870 * -EINVAL val out of range 3871 **/ 3872 static int 3873 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3874 { 3875 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3876 vport->cfg_nodev_tmo = val; 3877 vport->cfg_devloss_tmo = val; 3878 vport->dev_loss_tmo_changed = 1; 3879 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3880 lpfc_update_rport_devloss_tmo(vport); 3881 return 0; 3882 } 3883 3884 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3885 "0404 lpfc_devloss_tmo attribute cannot be set to " 3886 "%d, allowed range is [%d, %d]\n", 3887 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3888 return -EINVAL; 3889 } 3890 3891 lpfc_vport_param_store(devloss_tmo) 3892 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3893 3894 /* 3895 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3896 * lpfc_suppress_rsp = 0 Disable 3897 * lpfc_suppress_rsp = 1 Enable (default) 3898 * 3899 */ 3900 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3901 "Enable suppress rsp feature is firmware supports it"); 3902 3903 /* 3904 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3905 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3906 * lpfc_nvmet_mrq = 1 use a single RQ pair 3907 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3908 * 3909 */ 3910 LPFC_ATTR_R(nvmet_mrq, 3911 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3912 "Specify number of RQ pairs for processing NVMET cmds"); 3913 3914 /* 3915 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3916 * to each NVMET RQ. Range 64 to 2048, default is 512. 3917 */ 3918 LPFC_ATTR_R(nvmet_mrq_post, 3919 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3920 LPFC_NVMET_RQE_DEF_COUNT, 3921 "Specify number of RQ buffers to initially post"); 3922 3923 /* 3924 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3925 * Supported Values: 1 - register just FCP 3926 * 3 - register both FCP and NVME 3927 * Supported values are [1,3]. Default value is 3 3928 */ 3929 LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, 3930 LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, 3931 "Enable FC4 Protocol support - FCP / NVME"); 3932 3933 /* 3934 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3935 # deluged with LOTS of information. 3936 # You can set a bit mask to record specific types of verbose messages: 3937 # See lpfc_logmsh.h for definitions. 3938 */ 3939 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3940 "Verbose logging bit-mask"); 3941 3942 /* 3943 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3944 # objects that have been registered with the nameserver after login. 3945 */ 3946 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3947 "Deregister nameserver objects before LOGO"); 3948 3949 /* 3950 # lun_queue_depth: This parameter is used to limit the number of outstanding 3951 # commands per FCP LUN. 3952 */ 3953 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3954 "Max number of FCP commands we can queue to a specific LUN"); 3955 3956 /* 3957 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3958 # commands per target port. Value range is [10,65535]. Default value is 65535. 3959 */ 3960 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3961 module_param(lpfc_tgt_queue_depth, uint, 0444); 3962 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3963 lpfc_vport_param_show(tgt_queue_depth); 3964 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3965 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3966 3967 /** 3968 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3969 * @vport: lpfc vport structure pointer. 3970 * @val: integer attribute value. 3971 * 3972 * Description: Sets the parameter to the new value. 3973 * 3974 * Returns: 3975 * zero on success 3976 * -EINVAL if val is invalid 3977 */ 3978 static int 3979 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3980 { 3981 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3982 struct lpfc_nodelist *ndlp; 3983 3984 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3985 return -EINVAL; 3986 3987 if (val == vport->cfg_tgt_queue_depth) 3988 return 0; 3989 3990 spin_lock_irq(shost->host_lock); 3991 vport->cfg_tgt_queue_depth = val; 3992 3993 /* Next loop thru nodelist and change cmd_qdepth */ 3994 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3995 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3996 3997 spin_unlock_irq(shost->host_lock); 3998 return 0; 3999 } 4000 4001 lpfc_vport_param_store(tgt_queue_depth); 4002 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 4003 4004 /* 4005 # hba_queue_depth: This parameter is used to limit the number of outstanding 4006 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 4007 # value is greater than the maximum number of exchanges supported by the HBA, 4008 # then maximum number of exchanges supported by the HBA is used to determine 4009 # the hba_queue_depth. 4010 */ 4011 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 4012 "Max number of FCP commands we can queue to a lpfc HBA"); 4013 4014 /* 4015 # peer_port_login: This parameter allows/prevents logins 4016 # between peer ports hosted on the same physical port. 4017 # When this parameter is set 0 peer ports of same physical port 4018 # are not allowed to login to each other. 4019 # When this parameter is set 1 peer ports of same physical port 4020 # are allowed to login to each other. 4021 # Default value of this parameter is 0. 4022 */ 4023 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 4024 "Allow peer ports on the same physical port to login to each " 4025 "other."); 4026 4027 /* 4028 # restrict_login: This parameter allows/prevents logins 4029 # between Virtual Ports and remote initiators. 4030 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 4031 # other initiators and will attempt to PLOGI all remote ports. 4032 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 4033 # remote ports and will not attempt to PLOGI to other initiators. 4034 # This parameter does not restrict to the physical port. 4035 # This parameter does not restrict logins to Fabric resident remote ports. 4036 # Default value of this parameter is 1. 4037 */ 4038 static int lpfc_restrict_login = 1; 4039 module_param(lpfc_restrict_login, int, S_IRUGO); 4040 MODULE_PARM_DESC(lpfc_restrict_login, 4041 "Restrict virtual ports login to remote initiators."); 4042 lpfc_vport_param_show(restrict_login); 4043 4044 /** 4045 * lpfc_restrict_login_init - Set the vport restrict login flag 4046 * @vport: lpfc vport structure pointer. 4047 * @val: contains the restrict login value. 4048 * 4049 * Description: 4050 * If val is not in a valid range then log a kernel error message and set 4051 * the vport restrict login to one. 4052 * If the port type is physical clear the restrict login flag and return. 4053 * Else set the restrict login flag to val. 4054 * 4055 * Returns: 4056 * zero if val is in range 4057 * -EINVAL val out of range 4058 **/ 4059 static int 4060 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 4061 { 4062 if (val < 0 || val > 1) { 4063 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4064 "0422 lpfc_restrict_login attribute cannot " 4065 "be set to %d, allowed range is [0, 1]\n", 4066 val); 4067 vport->cfg_restrict_login = 1; 4068 return -EINVAL; 4069 } 4070 if (vport->port_type == LPFC_PHYSICAL_PORT) { 4071 vport->cfg_restrict_login = 0; 4072 return 0; 4073 } 4074 vport->cfg_restrict_login = val; 4075 return 0; 4076 } 4077 4078 /** 4079 * lpfc_restrict_login_set - Set the vport restrict login flag 4080 * @vport: lpfc vport structure pointer. 4081 * @val: contains the restrict login value. 4082 * 4083 * Description: 4084 * If val is not in a valid range then log a kernel error message and set 4085 * the vport restrict login to one. 4086 * If the port type is physical and the val is not zero log a kernel 4087 * error message, clear the restrict login flag and return zero. 4088 * Else set the restrict login flag to val. 4089 * 4090 * Returns: 4091 * zero if val is in range 4092 * -EINVAL val out of range 4093 **/ 4094 static int 4095 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4096 { 4097 if (val < 0 || val > 1) { 4098 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4099 "0425 lpfc_restrict_login attribute cannot " 4100 "be set to %d, allowed range is [0, 1]\n", 4101 val); 4102 vport->cfg_restrict_login = 1; 4103 return -EINVAL; 4104 } 4105 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4106 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4107 "0468 lpfc_restrict_login must be 0 for " 4108 "Physical ports.\n"); 4109 vport->cfg_restrict_login = 0; 4110 return 0; 4111 } 4112 vport->cfg_restrict_login = val; 4113 return 0; 4114 } 4115 lpfc_vport_param_store(restrict_login); 4116 static DEVICE_ATTR_RW(lpfc_restrict_login); 4117 4118 /* 4119 # Some disk devices have a "select ID" or "select Target" capability. 4120 # From a protocol standpoint "select ID" usually means select the 4121 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4122 # annex" which contains a table that maps a "select ID" (a number 4123 # between 0 and 7F) to an ALPA. By default, for compatibility with 4124 # older drivers, the lpfc driver scans this table from low ALPA to high 4125 # ALPA. 4126 # 4127 # Turning on the scan-down variable (on = 1, off = 0) will 4128 # cause the lpfc driver to use an inverted table, effectively 4129 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4130 # 4131 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 4132 # and will not work across a fabric. Also this parameter will take 4133 # effect only in the case when ALPA map is not available.) 4134 */ 4135 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4136 "Start scanning for devices from highest ALPA to lowest"); 4137 4138 /* 4139 # lpfc_topology: link topology for init link 4140 # 0x0 = attempt loop mode then point-to-point 4141 # 0x01 = internal loopback mode 4142 # 0x02 = attempt point-to-point mode only 4143 # 0x04 = attempt loop mode only 4144 # 0x06 = attempt point-to-point mode then loop 4145 # Set point-to-point mode if you want to run as an N_Port. 4146 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4147 # Default value is 0. 4148 */ 4149 LPFC_ATTR(topology, 0, 0, 6, 4150 "Select Fibre Channel topology"); 4151 4152 /** 4153 * lpfc_topology_store - Set the adapters topology field 4154 * @dev: class device that is converted into a scsi_host. 4155 * @attr:device attribute, not used. 4156 * @buf: buffer for passing information. 4157 * @count: size of the data buffer. 4158 * 4159 * Description: 4160 * If val is in a valid range then set the adapter's topology field and 4161 * issue a lip; if the lip fails reset the topology to the old value. 4162 * 4163 * If the value is not in range log a kernel error message and return an error. 4164 * 4165 * Returns: 4166 * zero if val is in range and lip okay 4167 * non-zero return value from lpfc_issue_lip() 4168 * -EINVAL val out of range 4169 **/ 4170 static ssize_t 4171 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4172 const char *buf, size_t count) 4173 { 4174 struct Scsi_Host *shost = class_to_shost(dev); 4175 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4176 struct lpfc_hba *phba = vport->phba; 4177 int val = 0; 4178 int nolip = 0; 4179 const char *val_buf = buf; 4180 int err; 4181 uint32_t prev_val; 4182 u8 sli_family, if_type; 4183 4184 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4185 nolip = 1; 4186 val_buf = &buf[strlen("nolip ")]; 4187 } 4188 4189 if (!isdigit(val_buf[0])) 4190 return -EINVAL; 4191 if (sscanf(val_buf, "%i", &val) != 1) 4192 return -EINVAL; 4193 4194 if (val >= 0 && val <= 6) { 4195 prev_val = phba->cfg_topology; 4196 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4197 val == 4) { 4198 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4199 "3113 Loop mode not supported at speed %d\n", 4200 val); 4201 return -EINVAL; 4202 } 4203 /* 4204 * The 'topology' is not a configurable parameter if : 4205 * - persistent topology enabled 4206 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4207 */ 4208 sli_family = bf_get(lpfc_sli_intf_sli_family, 4209 &phba->sli4_hba.sli_intf); 4210 if_type = bf_get(lpfc_sli_intf_if_type, 4211 &phba->sli4_hba.sli_intf); 4212 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4213 (!phba->sli4_hba.pc_sli4_params.pls && 4214 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4215 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4216 val == 4) { 4217 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4218 "3114 Loop mode not supported\n"); 4219 return -EINVAL; 4220 } 4221 phba->cfg_topology = val; 4222 if (nolip) 4223 return strlen(buf); 4224 4225 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4226 "3054 lpfc_topology changed from %d to %d\n", 4227 prev_val, val); 4228 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4229 phba->fc_topology_changed = 1; 4230 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4231 if (err) { 4232 phba->cfg_topology = prev_val; 4233 return -EINVAL; 4234 } else 4235 return strlen(buf); 4236 } 4237 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4238 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4239 "allowed range is [0, 6]\n", 4240 phba->brd_no, val); 4241 return -EINVAL; 4242 } 4243 4244 lpfc_param_show(topology) 4245 static DEVICE_ATTR_RW(lpfc_topology); 4246 4247 /** 4248 * lpfc_static_vport_show: Read callback function for 4249 * lpfc_static_vport sysfs file. 4250 * @dev: Pointer to class device object. 4251 * @attr: device attribute structure. 4252 * @buf: Data buffer. 4253 * 4254 * This function is the read call back function for 4255 * lpfc_static_vport sysfs file. The lpfc_static_vport 4256 * sysfs file report the mageability of the vport. 4257 **/ 4258 static ssize_t 4259 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4260 char *buf) 4261 { 4262 struct Scsi_Host *shost = class_to_shost(dev); 4263 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4264 if (vport->vport_flag & STATIC_VPORT) 4265 sprintf(buf, "1\n"); 4266 else 4267 sprintf(buf, "0\n"); 4268 4269 return strlen(buf); 4270 } 4271 4272 /* 4273 * Sysfs attribute to control the statistical data collection. 4274 */ 4275 static DEVICE_ATTR_RO(lpfc_static_vport); 4276 4277 /* 4278 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4279 # connection. 4280 # Value range is [0,16]. Default value is 0. 4281 */ 4282 /** 4283 * lpfc_link_speed_store - Set the adapters link speed 4284 * @dev: Pointer to class device. 4285 * @attr: Unused. 4286 * @buf: Data buffer. 4287 * @count: Size of the data buffer. 4288 * 4289 * Description: 4290 * If val is in a valid range then set the adapter's link speed field and 4291 * issue a lip; if the lip fails reset the link speed to the old value. 4292 * 4293 * Notes: 4294 * If the value is not in range log a kernel error message and return an error. 4295 * 4296 * Returns: 4297 * zero if val is in range and lip okay. 4298 * non-zero return value from lpfc_issue_lip() 4299 * -EINVAL val out of range 4300 **/ 4301 static ssize_t 4302 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4303 const char *buf, size_t count) 4304 { 4305 struct Scsi_Host *shost = class_to_shost(dev); 4306 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4307 struct lpfc_hba *phba = vport->phba; 4308 int val = LPFC_USER_LINK_SPEED_AUTO; 4309 int nolip = 0; 4310 const char *val_buf = buf; 4311 int err; 4312 uint32_t prev_val, if_type; 4313 4314 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4315 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4316 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4317 return -EPERM; 4318 4319 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4320 nolip = 1; 4321 val_buf = &buf[strlen("nolip ")]; 4322 } 4323 4324 if (!isdigit(val_buf[0])) 4325 return -EINVAL; 4326 if (sscanf(val_buf, "%i", &val) != 1) 4327 return -EINVAL; 4328 4329 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4330 "3055 lpfc_link_speed changed from %d to %d %s\n", 4331 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4332 4333 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4334 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4335 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4336 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4337 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4338 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4339 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4340 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4342 "2879 lpfc_link_speed attribute cannot be set " 4343 "to %d. Speed is not supported by this port.\n", 4344 val); 4345 return -EINVAL; 4346 } 4347 if (val >= LPFC_USER_LINK_SPEED_16G && 4348 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4350 "3112 lpfc_link_speed attribute cannot be set " 4351 "to %d. Speed is not supported in loop mode.\n", 4352 val); 4353 return -EINVAL; 4354 } 4355 4356 switch (val) { 4357 case LPFC_USER_LINK_SPEED_AUTO: 4358 case LPFC_USER_LINK_SPEED_1G: 4359 case LPFC_USER_LINK_SPEED_2G: 4360 case LPFC_USER_LINK_SPEED_4G: 4361 case LPFC_USER_LINK_SPEED_8G: 4362 case LPFC_USER_LINK_SPEED_16G: 4363 case LPFC_USER_LINK_SPEED_32G: 4364 case LPFC_USER_LINK_SPEED_64G: 4365 prev_val = phba->cfg_link_speed; 4366 phba->cfg_link_speed = val; 4367 if (nolip) 4368 return strlen(buf); 4369 4370 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4371 if (err) { 4372 phba->cfg_link_speed = prev_val; 4373 return -EINVAL; 4374 } 4375 return strlen(buf); 4376 default: 4377 break; 4378 } 4379 4380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4381 "0469 lpfc_link_speed attribute cannot be set to %d, " 4382 "allowed values are [%s]\n", 4383 val, LPFC_LINK_SPEED_STRING); 4384 return -EINVAL; 4385 4386 } 4387 4388 static int lpfc_link_speed = 0; 4389 module_param(lpfc_link_speed, int, S_IRUGO); 4390 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4391 lpfc_param_show(link_speed) 4392 4393 /** 4394 * lpfc_link_speed_init - Set the adapters link speed 4395 * @phba: lpfc_hba pointer. 4396 * @val: link speed value. 4397 * 4398 * Description: 4399 * If val is in a valid range then set the adapter's link speed field. 4400 * 4401 * Notes: 4402 * If the value is not in range log a kernel error message, clear the link 4403 * speed and return an error. 4404 * 4405 * Returns: 4406 * zero if val saved. 4407 * -EINVAL val out of range 4408 **/ 4409 static int 4410 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4411 { 4412 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4414 "3111 lpfc_link_speed of %d cannot " 4415 "support loop mode, setting topology to default.\n", 4416 val); 4417 phba->cfg_topology = 0; 4418 } 4419 4420 switch (val) { 4421 case LPFC_USER_LINK_SPEED_AUTO: 4422 case LPFC_USER_LINK_SPEED_1G: 4423 case LPFC_USER_LINK_SPEED_2G: 4424 case LPFC_USER_LINK_SPEED_4G: 4425 case LPFC_USER_LINK_SPEED_8G: 4426 case LPFC_USER_LINK_SPEED_16G: 4427 case LPFC_USER_LINK_SPEED_32G: 4428 case LPFC_USER_LINK_SPEED_64G: 4429 phba->cfg_link_speed = val; 4430 return 0; 4431 default: 4432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4433 "0405 lpfc_link_speed attribute cannot " 4434 "be set to %d, allowed values are " 4435 "["LPFC_LINK_SPEED_STRING"]\n", val); 4436 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4437 return -EINVAL; 4438 } 4439 } 4440 4441 static DEVICE_ATTR_RW(lpfc_link_speed); 4442 4443 /* 4444 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4445 # 1 = aer supported and enabled (default) 4446 # PCIe error reporting is always enabled by the PCI core, so this always 4447 # shows 1. 4448 # 4449 # N.B. Parts of LPFC_ATTR open-coded since some of the underlying 4450 # infrastructure (phba->cfg_aer_support) is gone. 4451 */ 4452 static uint lpfc_aer_support = 1; 4453 module_param(lpfc_aer_support, uint, S_IRUGO); 4454 MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); 4455 static ssize_t 4456 lpfc_aer_support_show(struct device *dev, struct device_attribute *attr, 4457 char *buf) 4458 { 4459 return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_aer_support); 4460 } 4461 4462 /** 4463 * lpfc_aer_support_store - Set the adapter for aer support 4464 * 4465 * @dev: class device that is converted into a Scsi_host. 4466 * @attr: device attribute, not used. 4467 * @buf: containing enable or disable aer flag. 4468 * @count: unused variable. 4469 * 4470 * Description: 4471 * PCIe error reporting is enabled by the PCI core, so drivers don't need 4472 * to do anything. Retain this interface for backwards compatibility, 4473 * but do nothing. 4474 * 4475 * Returns: 4476 * length of the buf on success 4477 * -EINVAL if val out of range 4478 **/ 4479 static ssize_t 4480 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4481 const char *buf, size_t count) 4482 { 4483 int val = 0; 4484 4485 if (!isdigit(buf[0])) 4486 return -EINVAL; 4487 if (sscanf(buf, "%i", &val) != 1) 4488 return -EINVAL; 4489 4490 dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n"); 4491 return strlen(buf); 4492 } 4493 4494 static DEVICE_ATTR_RW(lpfc_aer_support); 4495 4496 /** 4497 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4498 * @dev: class device that is converted into a Scsi_host. 4499 * @attr: device attribute, not used. 4500 * @buf: containing flag 1 for aer cleanup state. 4501 * @count: unused variable. 4502 * 4503 * Description: 4504 * If the @buf contains 1, invokes the kernel AER helper routine 4505 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4506 * error status register. 4507 * 4508 * Notes: 4509 * 4510 * Returns: 4511 * -EINVAL if the buf does not contain 1 4512 * -EPERM if the OS cannot clear AER error status, i.e., when platform 4513 * firmware owns the AER Capability 4514 **/ 4515 static ssize_t 4516 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4517 const char *buf, size_t count) 4518 { 4519 struct Scsi_Host *shost = class_to_shost(dev); 4520 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4521 struct lpfc_hba *phba = vport->phba; 4522 int val, rc = -1; 4523 4524 if (!isdigit(buf[0])) 4525 return -EINVAL; 4526 if (sscanf(buf, "%i", &val) != 1) 4527 return -EINVAL; 4528 if (val != 1) 4529 return -EINVAL; 4530 4531 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4532 4533 if (rc == 0) 4534 return strlen(buf); 4535 else 4536 return -EPERM; 4537 } 4538 4539 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4540 lpfc_aer_cleanup_state); 4541 4542 /** 4543 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4544 * 4545 * @dev: class device that is converted into a Scsi_host. 4546 * @attr: device attribute, not used. 4547 * @buf: containing the string the number of vfs to be enabled. 4548 * @count: unused variable. 4549 * 4550 * Description: 4551 * When this api is called either through user sysfs, the driver shall 4552 * try to enable or disable SR-IOV virtual functions according to the 4553 * following: 4554 * 4555 * If zero virtual function has been enabled to the physical function, 4556 * the driver shall invoke the pci enable virtual function api trying 4557 * to enable the virtual functions. If the nr_vfn provided is greater 4558 * than the maximum supported, the maximum virtual function number will 4559 * be used for invoking the api; otherwise, the nr_vfn provided shall 4560 * be used for invoking the api. If the api call returned success, the 4561 * actual number of virtual functions enabled will be set to the driver 4562 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4563 * cfg_sriov_nr_virtfn remains zero. 4564 * 4565 * If none-zero virtual functions have already been enabled to the 4566 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4567 * -EINVAL will be returned and the driver does nothing; 4568 * 4569 * If the nr_vfn provided is zero and none-zero virtual functions have 4570 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4571 * disabling virtual function api shall be invoded to disable all the 4572 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4573 * zero. Otherwise, if zero virtual function has been enabled, do 4574 * nothing. 4575 * 4576 * Returns: 4577 * length of the buf on success if val is in range the intended mode 4578 * is supported. 4579 * -EINVAL if val out of range or intended mode is not supported. 4580 **/ 4581 static ssize_t 4582 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4583 const char *buf, size_t count) 4584 { 4585 struct Scsi_Host *shost = class_to_shost(dev); 4586 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4587 struct lpfc_hba *phba = vport->phba; 4588 struct pci_dev *pdev = phba->pcidev; 4589 int val = 0, rc = -EINVAL; 4590 4591 /* Sanity check on user data */ 4592 if (!isdigit(buf[0])) 4593 return -EINVAL; 4594 if (sscanf(buf, "%i", &val) != 1) 4595 return -EINVAL; 4596 if (val < 0) 4597 return -EINVAL; 4598 4599 /* Request disabling virtual functions */ 4600 if (val == 0) { 4601 if (phba->cfg_sriov_nr_virtfn > 0) { 4602 pci_disable_sriov(pdev); 4603 phba->cfg_sriov_nr_virtfn = 0; 4604 } 4605 return strlen(buf); 4606 } 4607 4608 /* Request enabling virtual functions */ 4609 if (phba->cfg_sriov_nr_virtfn > 0) { 4610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4611 "3018 There are %d virtual functions " 4612 "enabled on physical function.\n", 4613 phba->cfg_sriov_nr_virtfn); 4614 return -EEXIST; 4615 } 4616 4617 if (val <= LPFC_MAX_VFN_PER_PFN) 4618 phba->cfg_sriov_nr_virtfn = val; 4619 else { 4620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4621 "3019 Enabling %d virtual functions is not " 4622 "allowed.\n", val); 4623 return -EINVAL; 4624 } 4625 4626 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4627 if (rc) { 4628 phba->cfg_sriov_nr_virtfn = 0; 4629 rc = -EPERM; 4630 } else 4631 rc = strlen(buf); 4632 4633 return rc; 4634 } 4635 4636 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4637 "Enable PCIe device SR-IOV virtual fn"); 4638 4639 lpfc_param_show(sriov_nr_virtfn) 4640 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4641 4642 /** 4643 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4644 * 4645 * @dev: class device that is converted into a Scsi_host. 4646 * @attr: device attribute, not used. 4647 * @buf: containing the string the number of vfs to be enabled. 4648 * @count: unused variable. 4649 * 4650 * Description: 4651 * 4652 * Returns: 4653 * length of the buf on success if val is in range the intended mode 4654 * is supported. 4655 * -EINVAL if val out of range or intended mode is not supported. 4656 **/ 4657 static ssize_t 4658 lpfc_request_firmware_upgrade_store(struct device *dev, 4659 struct device_attribute *attr, 4660 const char *buf, size_t count) 4661 { 4662 struct Scsi_Host *shost = class_to_shost(dev); 4663 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4664 struct lpfc_hba *phba = vport->phba; 4665 int val = 0, rc; 4666 4667 /* Sanity check on user data */ 4668 if (!isdigit(buf[0])) 4669 return -EINVAL; 4670 if (sscanf(buf, "%i", &val) != 1) 4671 return -EINVAL; 4672 if (val != 1) 4673 return -EINVAL; 4674 4675 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4676 if (rc) 4677 rc = -EPERM; 4678 else 4679 rc = strlen(buf); 4680 return rc; 4681 } 4682 4683 static int lpfc_req_fw_upgrade; 4684 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4685 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4686 lpfc_param_show(request_firmware_upgrade) 4687 4688 /** 4689 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4690 * @phba: lpfc_hba pointer. 4691 * @val: 0 or 1. 4692 * 4693 * Description: 4694 * Set the initial Linux generic firmware upgrade enable or disable flag. 4695 * 4696 * Returns: 4697 * zero if val saved. 4698 * -EINVAL val out of range 4699 **/ 4700 static int 4701 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4702 { 4703 if (val >= 0 && val <= 1) { 4704 phba->cfg_request_firmware_upgrade = val; 4705 return 0; 4706 } 4707 return -EINVAL; 4708 } 4709 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4710 lpfc_request_firmware_upgrade_show, 4711 lpfc_request_firmware_upgrade_store); 4712 4713 /** 4714 * lpfc_force_rscn_store 4715 * 4716 * @dev: class device that is converted into a Scsi_host. 4717 * @attr: device attribute, not used. 4718 * @buf: unused string 4719 * @count: unused variable. 4720 * 4721 * Description: 4722 * Force the switch to send a RSCN to all other NPorts in our zone 4723 * If we are direct connect pt2pt, build the RSCN command ourself 4724 * and send to the other NPort. Not supported for private loop. 4725 * 4726 * Returns: 4727 * 0 - on success 4728 * -EIO - if command is not sent 4729 **/ 4730 static ssize_t 4731 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4732 const char *buf, size_t count) 4733 { 4734 struct Scsi_Host *shost = class_to_shost(dev); 4735 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4736 int i; 4737 4738 i = lpfc_issue_els_rscn(vport, 0); 4739 if (i) 4740 return -EIO; 4741 return strlen(buf); 4742 } 4743 4744 /* 4745 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4746 * connected to the HBA. 4747 * 4748 * Value range is any ascii value 4749 */ 4750 static int lpfc_force_rscn; 4751 module_param(lpfc_force_rscn, int, 0644); 4752 MODULE_PARM_DESC(lpfc_force_rscn, 4753 "Force an RSCN to be sent to all remote NPorts"); 4754 lpfc_param_show(force_rscn) 4755 4756 /** 4757 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4758 * @phba: lpfc_hba pointer. 4759 * @val: unused value. 4760 * 4761 * Returns: 4762 * zero if val saved. 4763 **/ 4764 static int 4765 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4766 { 4767 return 0; 4768 } 4769 static DEVICE_ATTR_RW(lpfc_force_rscn); 4770 4771 /** 4772 * lpfc_fcp_imax_store 4773 * 4774 * @dev: class device that is converted into a Scsi_host. 4775 * @attr: device attribute, not used. 4776 * @buf: string with the number of fast-path FCP interrupts per second. 4777 * @count: unused variable. 4778 * 4779 * Description: 4780 * If val is in a valid range [636,651042], then set the adapter's 4781 * maximum number of fast-path FCP interrupts per second. 4782 * 4783 * Returns: 4784 * length of the buf on success if val is in range the intended mode 4785 * is supported. 4786 * -EINVAL if val out of range or intended mode is not supported. 4787 **/ 4788 static ssize_t 4789 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4790 const char *buf, size_t count) 4791 { 4792 struct Scsi_Host *shost = class_to_shost(dev); 4793 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4794 struct lpfc_hba *phba = vport->phba; 4795 struct lpfc_eq_intr_info *eqi; 4796 uint32_t usdelay; 4797 int val = 0, i; 4798 4799 /* fcp_imax is only valid for SLI4 */ 4800 if (phba->sli_rev != LPFC_SLI_REV4) 4801 return -EINVAL; 4802 4803 /* Sanity check on user data */ 4804 if (!isdigit(buf[0])) 4805 return -EINVAL; 4806 if (sscanf(buf, "%i", &val) != 1) 4807 return -EINVAL; 4808 4809 /* 4810 * Value range for the HBA is [5000,5000000] 4811 * The value for each EQ depends on how many EQs are configured. 4812 * Allow value == 0 4813 */ 4814 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4815 return -EINVAL; 4816 4817 phba->cfg_auto_imax = (val) ? 0 : 1; 4818 if (phba->cfg_fcp_imax && !val) { 4819 queue_delayed_work(phba->wq, &phba->eq_delay_work, 4820 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 4821 4822 for_each_present_cpu(i) { 4823 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 4824 eqi->icnt = 0; 4825 } 4826 } 4827 4828 phba->cfg_fcp_imax = (uint32_t)val; 4829 4830 if (phba->cfg_fcp_imax) 4831 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 4832 else 4833 usdelay = 0; 4834 4835 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4836 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4837 usdelay); 4838 4839 return strlen(buf); 4840 } 4841 4842 /* 4843 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4844 # for the HBA. 4845 # 4846 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 4847 */ 4848 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4849 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4850 MODULE_PARM_DESC(lpfc_fcp_imax, 4851 "Set the maximum number of FCP interrupts per second per HBA"); 4852 lpfc_param_show(fcp_imax) 4853 4854 /** 4855 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4856 * @phba: lpfc_hba pointer. 4857 * @val: link speed value. 4858 * 4859 * Description: 4860 * If val is in a valid range [636,651042], then initialize the adapter's 4861 * maximum number of fast-path FCP interrupts per second. 4862 * 4863 * Returns: 4864 * zero if val saved. 4865 * -EINVAL val out of range 4866 **/ 4867 static int 4868 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4869 { 4870 if (phba->sli_rev != LPFC_SLI_REV4) { 4871 phba->cfg_fcp_imax = 0; 4872 return 0; 4873 } 4874 4875 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4876 (val == 0)) { 4877 phba->cfg_fcp_imax = val; 4878 return 0; 4879 } 4880 4881 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4882 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4883 val); 4884 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4885 4886 return 0; 4887 } 4888 4889 static DEVICE_ATTR_RW(lpfc_fcp_imax); 4890 4891 /** 4892 * lpfc_cq_max_proc_limit_store 4893 * 4894 * @dev: class device that is converted into a Scsi_host. 4895 * @attr: device attribute, not used. 4896 * @buf: string with the cq max processing limit of cqes 4897 * @count: unused variable. 4898 * 4899 * Description: 4900 * If val is in a valid range, then set value on each cq 4901 * 4902 * Returns: 4903 * The length of the buf: if successful 4904 * -ERANGE: if val is not in the valid range 4905 * -EINVAL: if bad value format or intended mode is not supported. 4906 **/ 4907 static ssize_t 4908 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 4909 const char *buf, size_t count) 4910 { 4911 struct Scsi_Host *shost = class_to_shost(dev); 4912 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4913 struct lpfc_hba *phba = vport->phba; 4914 struct lpfc_queue *eq, *cq; 4915 unsigned long val; 4916 int i; 4917 4918 /* cq_max_proc_limit is only valid for SLI4 */ 4919 if (phba->sli_rev != LPFC_SLI_REV4) 4920 return -EINVAL; 4921 4922 /* Sanity check on user data */ 4923 if (!isdigit(buf[0])) 4924 return -EINVAL; 4925 if (kstrtoul(buf, 0, &val)) 4926 return -EINVAL; 4927 4928 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 4929 return -ERANGE; 4930 4931 phba->cfg_cq_max_proc_limit = (uint32_t)val; 4932 4933 /* set the values on the cq's */ 4934 for (i = 0; i < phba->cfg_irq_chann; i++) { 4935 /* Get the EQ corresponding to the IRQ vector */ 4936 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 4937 if (!eq) 4938 continue; 4939 4940 list_for_each_entry(cq, &eq->child_list, list) 4941 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 4942 cq->entry_count); 4943 } 4944 4945 return strlen(buf); 4946 } 4947 4948 /* 4949 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 4950 * itteration of CQ processing. 4951 */ 4952 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4953 module_param(lpfc_cq_max_proc_limit, int, 0644); 4954 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 4955 "Set the maximum number CQEs processed in an iteration of " 4956 "CQ processing"); 4957 lpfc_param_show(cq_max_proc_limit) 4958 4959 /* 4960 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 4961 * single handler call which should request a polled completion rather 4962 * than re-enabling interrupts. 4963 */ 4964 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 4965 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 4966 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 4967 "CQE Processing Threshold to enable Polling"); 4968 4969 /** 4970 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 4971 * @phba: lpfc_hba pointer. 4972 * @val: entry limit 4973 * 4974 * Description: 4975 * If val is in a valid range, then initialize the adapter's maximum 4976 * value. 4977 * 4978 * Returns: 4979 * Always returns 0 for success, even if value not always set to 4980 * requested value. If value out of range or not supported, will fall 4981 * back to default. 4982 **/ 4983 static int 4984 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 4985 { 4986 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 4987 4988 if (phba->sli_rev != LPFC_SLI_REV4) 4989 return 0; 4990 4991 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 4992 phba->cfg_cq_max_proc_limit = val; 4993 return 0; 4994 } 4995 4996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4997 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 4998 "default\n", 4999 phba->cfg_cq_max_proc_limit); 5000 5001 return 0; 5002 } 5003 5004 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5005 5006 /** 5007 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5008 * @dev: class converted to a Scsi_host structure. 5009 * @attr: device attribute, not used. 5010 * @buf: on return contains text describing the state of the link. 5011 * 5012 * Returns: size of formatted string. 5013 **/ 5014 static ssize_t 5015 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5016 char *buf) 5017 { 5018 struct Scsi_Host *shost = class_to_shost(dev); 5019 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5020 struct lpfc_hba *phba = vport->phba; 5021 struct lpfc_vector_map_info *cpup; 5022 int len = 0; 5023 5024 if ((phba->sli_rev != LPFC_SLI_REV4) || 5025 (phba->intr_type != MSIX)) 5026 return len; 5027 5028 switch (phba->cfg_fcp_cpu_map) { 5029 case 0: 5030 len += scnprintf(buf + len, PAGE_SIZE-len, 5031 "fcp_cpu_map: No mapping (%d)\n", 5032 phba->cfg_fcp_cpu_map); 5033 return len; 5034 case 1: 5035 len += scnprintf(buf + len, PAGE_SIZE-len, 5036 "fcp_cpu_map: HBA centric mapping (%d): " 5037 "%d of %d CPUs online from %d possible CPUs\n", 5038 phba->cfg_fcp_cpu_map, num_online_cpus(), 5039 num_present_cpus(), 5040 phba->sli4_hba.num_possible_cpu); 5041 break; 5042 } 5043 5044 while (phba->sli4_hba.curr_disp_cpu < 5045 phba->sli4_hba.num_possible_cpu) { 5046 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5047 5048 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5049 len += scnprintf(buf + len, PAGE_SIZE - len, 5050 "CPU %02d not present\n", 5051 phba->sli4_hba.curr_disp_cpu); 5052 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5053 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5054 len += scnprintf( 5055 buf + len, PAGE_SIZE - len, 5056 "CPU %02d hdwq None " 5057 "physid %d coreid %d ht %d ua %d\n", 5058 phba->sli4_hba.curr_disp_cpu, 5059 cpup->phys_id, cpup->core_id, 5060 (cpup->flag & LPFC_CPU_MAP_HYPER), 5061 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5062 else 5063 len += scnprintf( 5064 buf + len, PAGE_SIZE - len, 5065 "CPU %02d EQ None hdwq %04d " 5066 "physid %d coreid %d ht %d ua %d\n", 5067 phba->sli4_hba.curr_disp_cpu, 5068 cpup->hdwq, cpup->phys_id, 5069 cpup->core_id, 5070 (cpup->flag & LPFC_CPU_MAP_HYPER), 5071 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5072 } else { 5073 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5074 len += scnprintf( 5075 buf + len, PAGE_SIZE - len, 5076 "CPU %02d hdwq None " 5077 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5078 phba->sli4_hba.curr_disp_cpu, 5079 cpup->phys_id, 5080 cpup->core_id, 5081 (cpup->flag & LPFC_CPU_MAP_HYPER), 5082 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5083 lpfc_get_irq(cpup->eq)); 5084 else 5085 len += scnprintf( 5086 buf + len, PAGE_SIZE - len, 5087 "CPU %02d EQ %04d hdwq %04d " 5088 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5089 phba->sli4_hba.curr_disp_cpu, 5090 cpup->eq, cpup->hdwq, cpup->phys_id, 5091 cpup->core_id, 5092 (cpup->flag & LPFC_CPU_MAP_HYPER), 5093 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5094 lpfc_get_irq(cpup->eq)); 5095 } 5096 5097 phba->sli4_hba.curr_disp_cpu++; 5098 5099 /* display max number of CPUs keeping some margin */ 5100 if (phba->sli4_hba.curr_disp_cpu < 5101 phba->sli4_hba.num_possible_cpu && 5102 (len >= (PAGE_SIZE - 64))) { 5103 len += scnprintf(buf + len, 5104 PAGE_SIZE - len, "more...\n"); 5105 break; 5106 } 5107 } 5108 5109 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5110 phba->sli4_hba.curr_disp_cpu = 0; 5111 5112 return len; 5113 } 5114 5115 /** 5116 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5117 * @dev: class device that is converted into a Scsi_host. 5118 * @attr: device attribute, not used. 5119 * @buf: one or more lpfc_polling_flags values. 5120 * @count: not used. 5121 * 5122 * Returns: 5123 * -EINVAL - Not implemented yet. 5124 **/ 5125 static ssize_t 5126 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5127 const char *buf, size_t count) 5128 { 5129 return -EINVAL; 5130 } 5131 5132 /* 5133 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5134 # for the HBA. 5135 # 5136 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5137 # 0 - Do not affinitze IRQ vectors 5138 # 1 - Affintize HBA vectors with respect to each HBA 5139 # (start with CPU0 for each HBA) 5140 # This also defines how Hardware Queues are mapped to specific CPUs. 5141 */ 5142 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5143 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5144 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5145 "Defines how to map CPUs to IRQ vectors per HBA"); 5146 5147 /** 5148 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5149 * @phba: lpfc_hba pointer. 5150 * @val: link speed value. 5151 * 5152 * Description: 5153 * If val is in a valid range [0-2], then affinitze the adapter's 5154 * MSIX vectors. 5155 * 5156 * Returns: 5157 * zero if val saved. 5158 * -EINVAL val out of range 5159 **/ 5160 static int 5161 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5162 { 5163 if (phba->sli_rev != LPFC_SLI_REV4) { 5164 phba->cfg_fcp_cpu_map = 0; 5165 return 0; 5166 } 5167 5168 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5169 phba->cfg_fcp_cpu_map = val; 5170 return 0; 5171 } 5172 5173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5174 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5175 "default\n", val); 5176 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5177 5178 return 0; 5179 } 5180 5181 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5182 5183 /* 5184 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5185 # Value range is [2,3]. Default value is 3. 5186 */ 5187 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5188 "Select Fibre Channel class of service for FCP sequences"); 5189 5190 /* 5191 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5192 # is [0,1]. Default value is 1. 5193 */ 5194 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5195 "Use ADISC on rediscovery to authenticate FCP devices"); 5196 5197 /* 5198 # lpfc_first_burst_size: First burst size to use on the NPorts 5199 # that support first burst. 5200 # Value range is [0,65536]. Default value is 0. 5201 */ 5202 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5203 "First burst size for Targets that support first burst"); 5204 5205 /* 5206 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5207 * When the driver is configured as an NVME target, this value is 5208 * communicated to the NVME initiator in the PRLI response. It is 5209 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5210 * parameters are set and the target is sending the PRLI RSP. 5211 * Parameter supported on physical port only - no NPIV support. 5212 * Value range is [0,65536]. Default value is 0. 5213 */ 5214 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5215 "NVME Target mode first burst size in 512B increments."); 5216 5217 /* 5218 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5219 * For the Initiator (I), enabling this parameter means that an NVMET 5220 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5221 * processed by the initiator for subsequent NVME FCP IO. 5222 * Currently, this feature is not supported on the NVME target 5223 * Value range is [0,1]. Default value is 0 (disabled). 5224 */ 5225 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5226 "Enable First Burst feature for NVME Initiator."); 5227 5228 /* 5229 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5230 # depth. Default value is 0. When the value of this parameter is zero the 5231 # SCSI command completion time is not used for controlling I/O queue depth. When 5232 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5233 # to limit the I/O completion time to the parameter value. 5234 # The value is set in milliseconds. 5235 */ 5236 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5237 "Use command completion time to control queue depth"); 5238 5239 lpfc_vport_param_show(max_scsicmpl_time); 5240 static int 5241 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5242 { 5243 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5244 struct lpfc_nodelist *ndlp, *next_ndlp; 5245 5246 if (val == vport->cfg_max_scsicmpl_time) 5247 return 0; 5248 if ((val < 0) || (val > 60000)) 5249 return -EINVAL; 5250 vport->cfg_max_scsicmpl_time = val; 5251 5252 spin_lock_irq(shost->host_lock); 5253 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5254 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5255 continue; 5256 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5257 } 5258 spin_unlock_irq(shost->host_lock); 5259 return 0; 5260 } 5261 lpfc_vport_param_store(max_scsicmpl_time); 5262 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5263 5264 /* 5265 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5266 # range is [0,1]. Default value is 0. 5267 */ 5268 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5269 5270 /* 5271 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5272 # range is [0,1]. Default value is 1. 5273 */ 5274 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5275 5276 /* 5277 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5278 * range is [0,1]. Default value is 0. 5279 * For [0], FCP commands are issued to Work Queues based on upper layer 5280 * hardware queue index. 5281 * For [1], FCP commands are issued to a Work Queue associated with the 5282 * current CPU. 5283 * 5284 * LPFC_FCP_SCHED_BY_HDWQ == 0 5285 * LPFC_FCP_SCHED_BY_CPU == 1 5286 * 5287 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5288 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5289 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5290 * through WQs will be used. 5291 */ 5292 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5293 LPFC_FCP_SCHED_BY_HDWQ, 5294 LPFC_FCP_SCHED_BY_CPU, 5295 "Determine scheduling algorithm for " 5296 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5297 5298 /* 5299 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5300 * range is [0,1]. Default value is 0. 5301 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5302 * For [1], GID_PT is used for NameServer queries after RSCN 5303 * 5304 */ 5305 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5306 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5307 "Determine algorithm NameServer queries after RSCN " 5308 "[0] - GID_FT, [1] - GID_PT"); 5309 5310 /* 5311 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5312 # range is [0,1]. Default value is 0. 5313 # For [0], bus reset issues target reset to ALL devices 5314 # For [1], bus reset issues target reset to non-FCP2 devices 5315 */ 5316 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5317 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5318 5319 5320 /* 5321 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5322 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5323 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5324 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5325 # cr_delay is set to 0. 5326 */ 5327 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5328 "interrupt response is generated"); 5329 5330 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5331 "interrupt response is generated"); 5332 5333 /* 5334 # lpfc_multi_ring_support: Determines how many rings to spread available 5335 # cmd/rsp IOCB entries across. 5336 # Value range is [1,2]. Default value is 1. 5337 */ 5338 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5339 "SLI rings to spread IOCB entries across"); 5340 5341 /* 5342 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5343 # identifies what rctl value to configure the additional ring for. 5344 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5345 */ 5346 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5347 255, "Identifies RCTL for additional ring configuration"); 5348 5349 /* 5350 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5351 # identifies what type value to configure the additional ring for. 5352 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5353 */ 5354 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5355 255, "Identifies TYPE for additional ring configuration"); 5356 5357 /* 5358 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5359 # 0 = SmartSAN functionality disabled (default) 5360 # 1 = SmartSAN functionality enabled 5361 # This parameter will override the value of lpfc_fdmi_on module parameter. 5362 # Value range is [0,1]. Default value is 0. 5363 */ 5364 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5365 5366 /* 5367 # lpfc_fdmi_on: Controls FDMI support. 5368 # 0 No FDMI support 5369 # 1 Traditional FDMI support (default) 5370 # Traditional FDMI support means the driver will assume FDMI-2 support; 5371 # however, if that fails, it will fallback to FDMI-1. 5372 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5373 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5374 # lpfc_fdmi_on. 5375 # Value range [0,1]. Default value is 1. 5376 */ 5377 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5378 5379 /* 5380 # Specifies the maximum number of ELS cmds we can have outstanding (for 5381 # discovery). Value range is [1,64]. Default value = 32. 5382 */ 5383 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5384 "during discovery"); 5385 5386 /* 5387 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5388 # will be scanned by the SCSI midlayer when sequential scanning is 5389 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5390 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5391 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5392 # above. The lpfc driver limits the default value to 255 for two reasons. 5393 # As it bounds the sequential scan loop, scanning for thousands of luns 5394 # on a target can take minutes of wall clock time. Additionally, 5395 # there are FC targets, such as JBODs, that only recognize 8-bits of 5396 # LUN ID. When they receive a value greater than 8 bits, they chop off 5397 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5398 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5399 # valid responses at each of the LUN IDs, to believe there are multiple 5400 # devices present, when in fact, there is only 1. 5401 # A customer that is aware of their target behaviors, and the results as 5402 # indicated above, is welcome to increase the lpfc_max_luns value. 5403 # As mentioned, this value is not used by the lpfc driver, only the 5404 # SCSI midlayer. 5405 # Value range is [0,65535]. Default value is 255. 5406 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5407 */ 5408 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5409 5410 /* 5411 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5412 # Value range is [1,255], default value is 10. 5413 */ 5414 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5415 "Milliseconds driver will wait between polling FCP ring"); 5416 5417 /* 5418 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5419 # to complete in seconds. Value range is [5,180], default value is 60. 5420 */ 5421 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5422 "Maximum time to wait for task management commands to complete"); 5423 /* 5424 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5425 # support this feature 5426 # 0 = MSI disabled 5427 # 1 = MSI enabled 5428 # 2 = MSI-X enabled (default) 5429 # Value range is [0,2]. Default value is 2. 5430 */ 5431 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5432 "MSI-X (2), if possible"); 5433 5434 /* 5435 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5436 * 5437 * 0 = NVME OAS disabled 5438 * 1 = NVME OAS enabled 5439 * 5440 * Value range is [0,1]. Default value is 0. 5441 */ 5442 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5443 "Use OAS bit on NVME IOs"); 5444 5445 /* 5446 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5447 * 5448 * 0 = Put NVME Command in SGL 5449 * 1 = Embed NVME Command in WQE (unless G7) 5450 * 2 = Embed NVME Command in WQE (force) 5451 * 5452 * Value range is [0,2]. Default value is 1. 5453 */ 5454 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5455 "Embed NVME Command in WQE"); 5456 5457 /* 5458 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5459 * the driver will advertise it supports to the SCSI layer. 5460 * 5461 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5462 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5463 * 5464 * Value range is [0,256]. Default value is 8. 5465 */ 5466 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5467 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5468 "Set the number of SCSI Queues advertised"); 5469 5470 /* 5471 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5472 * will advertise it supports to the NVME and SCSI layers. This also 5473 * will map to the number of CQ/WQ pairs the driver will create. 5474 * 5475 * The NVME Layer will try to create this many, plus 1 administrative 5476 * hardware queue. The administrative queue will always map to WQ 0 5477 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5478 * 5479 * 0 = Configure the number of hdw queues to the number of active CPUs. 5480 * 1,256 = Manually specify how many hdw queues to use. 5481 * 5482 * Value range is [0,256]. Default value is 0. 5483 */ 5484 LPFC_ATTR_R(hdw_queue, 5485 LPFC_HBA_HDWQ_DEF, 5486 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5487 "Set the number of I/O Hardware Queues"); 5488 5489 #if IS_ENABLED(CONFIG_X86) 5490 /** 5491 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5492 * irq_chann_mode 5493 * @phba: Pointer to HBA context object. 5494 **/ 5495 static void 5496 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5497 { 5498 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5499 const struct cpumask *sibling_mask; 5500 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5501 5502 cpumask_clear(aff_mask); 5503 5504 if (phba->irq_chann_mode == NUMA_MODE) { 5505 /* Check if we're a NUMA architecture */ 5506 numa_node = dev_to_node(&phba->pcidev->dev); 5507 if (numa_node == NUMA_NO_NODE) { 5508 phba->irq_chann_mode = NORMAL_MODE; 5509 return; 5510 } 5511 } 5512 5513 for_each_possible_cpu(cpu) { 5514 switch (phba->irq_chann_mode) { 5515 case NUMA_MODE: 5516 if (cpu_to_node(cpu) == numa_node) 5517 cpumask_set_cpu(cpu, aff_mask); 5518 break; 5519 case NHT_MODE: 5520 sibling_mask = topology_sibling_cpumask(cpu); 5521 first_cpu = cpumask_first(sibling_mask); 5522 if (first_cpu < nr_cpu_ids) 5523 cpumask_set_cpu(first_cpu, aff_mask); 5524 break; 5525 default: 5526 break; 5527 } 5528 } 5529 } 5530 #endif 5531 5532 static void 5533 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5534 { 5535 #if IS_ENABLED(CONFIG_X86) 5536 switch (boot_cpu_data.x86_vendor) { 5537 case X86_VENDOR_AMD: 5538 /* If AMD architecture, then default is NUMA_MODE */ 5539 phba->irq_chann_mode = NUMA_MODE; 5540 break; 5541 case X86_VENDOR_INTEL: 5542 /* If Intel architecture, then default is no hyperthread mode */ 5543 phba->irq_chann_mode = NHT_MODE; 5544 break; 5545 default: 5546 phba->irq_chann_mode = NORMAL_MODE; 5547 break; 5548 } 5549 lpfc_cpumask_irq_mode_init(phba); 5550 #else 5551 phba->irq_chann_mode = NORMAL_MODE; 5552 #endif 5553 } 5554 5555 /* 5556 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5557 * for Hardware Queues to utilize. This also will map to the number 5558 * of EQ / MSI-X vectors the driver will create. This should never be 5559 * more than the number of Hardware Queues 5560 * 5561 * 0 = Configure number of IRQ Channels to: 5562 * if AMD architecture, number of CPUs on HBA's NUMA node 5563 * if Intel architecture, number of physical CPUs. 5564 * otherwise, number of active CPUs. 5565 * [1,256] = Manually specify how many IRQ Channels to use. 5566 * 5567 * Value range is [0,256]. Default value is [0]. 5568 */ 5569 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5570 module_param(lpfc_irq_chann, uint, 0444); 5571 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5572 5573 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5574 * @phba: lpfc_hba pointer. 5575 * @val: contains the initial value 5576 * 5577 * Description: 5578 * Validates the initial value is within range and assigns it to the 5579 * adapter. If not in range, an error message is posted and the 5580 * default value is assigned. 5581 * 5582 * Returns: 5583 * zero if value is in range and is set 5584 * -EINVAL if value was out of range 5585 **/ 5586 static int 5587 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5588 { 5589 const struct cpumask *aff_mask; 5590 5591 if (phba->cfg_use_msi != 2) { 5592 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5593 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5594 phba->cfg_use_msi); 5595 phba->irq_chann_mode = NORMAL_MODE; 5596 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5597 return 0; 5598 } 5599 5600 /* Check if default setting was passed */ 5601 if (val == LPFC_IRQ_CHANN_DEF && 5602 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5603 phba->sli_rev == LPFC_SLI_REV4) 5604 lpfc_assign_default_irq_chann(phba); 5605 5606 if (phba->irq_chann_mode != NORMAL_MODE) { 5607 aff_mask = &phba->sli4_hba.irq_aff_mask; 5608 5609 if (cpumask_empty(aff_mask)) { 5610 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5611 "8533 Could not identify CPUS for " 5612 "mode %d, ignoring\n", 5613 phba->irq_chann_mode); 5614 phba->irq_chann_mode = NORMAL_MODE; 5615 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5616 } else { 5617 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5618 5619 /* If no hyperthread mode, then set hdwq count to 5620 * aff_mask weight as well 5621 */ 5622 if (phba->irq_chann_mode == NHT_MODE) 5623 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5624 5625 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5626 "8543 lpfc_irq_chann set to %u " 5627 "(mode: %d)\n", phba->cfg_irq_chann, 5628 phba->irq_chann_mode); 5629 } 5630 } else { 5631 if (val > LPFC_IRQ_CHANN_MAX) { 5632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5633 "8545 lpfc_irq_chann attribute cannot " 5634 "be set to %u, allowed range is " 5635 "[%u,%u]\n", 5636 val, 5637 LPFC_IRQ_CHANN_MIN, 5638 LPFC_IRQ_CHANN_MAX); 5639 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5640 return -EINVAL; 5641 } 5642 if (phba->sli_rev == LPFC_SLI_REV4) { 5643 phba->cfg_irq_chann = val; 5644 } else { 5645 phba->cfg_irq_chann = 2; 5646 phba->cfg_hdw_queue = 1; 5647 } 5648 } 5649 5650 return 0; 5651 } 5652 5653 /** 5654 * lpfc_irq_chann_show - Display value of irq_chann 5655 * @dev: class converted to a Scsi_host structure. 5656 * @attr: device attribute, not used. 5657 * @buf: on return contains a string with the list sizes 5658 * 5659 * Returns: size of formatted string. 5660 **/ 5661 static ssize_t 5662 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5663 char *buf) 5664 { 5665 struct Scsi_Host *shost = class_to_shost(dev); 5666 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5667 struct lpfc_hba *phba = vport->phba; 5668 5669 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5670 } 5671 5672 static DEVICE_ATTR_RO(lpfc_irq_chann); 5673 5674 /* 5675 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5676 # 0 = HBA resets disabled 5677 # 1 = HBA resets enabled (default) 5678 # 2 = HBA reset via PCI bus reset enabled 5679 # Value range is [0,2]. Default value is 1. 5680 */ 5681 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5682 5683 /* 5684 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5685 # 0 = HBA Heartbeat disabled 5686 # 1 = HBA Heartbeat enabled (default) 5687 # Value range is [0,1]. Default value is 1. 5688 */ 5689 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5690 5691 /* 5692 # lpfc_EnableXLane: Enable Express Lane Feature 5693 # 0x0 Express Lane Feature disabled 5694 # 0x1 Express Lane Feature enabled 5695 # Value range is [0,1]. Default value is 0. 5696 */ 5697 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5698 5699 /* 5700 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5701 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5702 # Value range is [0x0,0x7f]. Default value is 0 5703 */ 5704 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5705 5706 /* 5707 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5708 # 0 = BlockGuard disabled (default) 5709 # 1 = BlockGuard enabled 5710 # Value range is [0,1]. Default value is 0. 5711 */ 5712 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5713 5714 /* 5715 # lpfc_prot_mask: 5716 # - Bit mask of host protection capabilities used to register with the 5717 # SCSI mid-layer 5718 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5719 # - Allows you to ultimately specify which profiles to use 5720 # - Default will result in registering capabilities for all profiles. 5721 # - SHOST_DIF_TYPE1_PROTECTION 1 5722 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5723 # - SHOST_DIX_TYPE0_PROTECTION 8 5724 # HBA supports DIX Type 0: Host to HBA protection only 5725 # - SHOST_DIX_TYPE1_PROTECTION 16 5726 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5727 # 5728 */ 5729 LPFC_ATTR(prot_mask, 5730 (SHOST_DIF_TYPE1_PROTECTION | 5731 SHOST_DIX_TYPE0_PROTECTION | 5732 SHOST_DIX_TYPE1_PROTECTION), 5733 0, 5734 (SHOST_DIF_TYPE1_PROTECTION | 5735 SHOST_DIX_TYPE0_PROTECTION | 5736 SHOST_DIX_TYPE1_PROTECTION), 5737 "T10-DIF host protection capabilities mask"); 5738 5739 /* 5740 # lpfc_prot_guard: 5741 # - Bit mask of protection guard types to register with the SCSI mid-layer 5742 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5743 # - Allows you to ultimately specify which profiles to use 5744 # - Default will result in registering capabilities for all guard types 5745 # 5746 */ 5747 LPFC_ATTR(prot_guard, 5748 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5749 "T10-DIF host protection guard type"); 5750 5751 /* 5752 * Delay initial NPort discovery when Clean Address bit is cleared in 5753 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5754 * This parameter can have value 0 or 1. 5755 * When this parameter is set to 0, no delay is added to the initial 5756 * discovery. 5757 * When this parameter is set to non-zero value, initial Nport discovery is 5758 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5759 * accept and FCID/Fabric name/Fabric portname is changed. 5760 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5761 * when Clean Address bit is cleared in FLOGI/FDISC 5762 * accept and FCID/Fabric name/Fabric portname is changed. 5763 * Default value is 0. 5764 */ 5765 LPFC_ATTR(delay_discovery, 0, 0, 1, 5766 "Delay NPort discovery when Clean Address bit is cleared."); 5767 5768 /* 5769 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5770 * This value can be set to values between 64 and 4096. The default value 5771 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5772 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5773 * Because of the additional overhead involved in setting up T10-DIF, 5774 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5775 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5776 */ 5777 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5778 module_param(lpfc_sg_seg_cnt, uint, 0444); 5779 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5780 5781 /** 5782 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5783 * configured for the adapter 5784 * @dev: class converted to a Scsi_host structure. 5785 * @attr: device attribute, not used. 5786 * @buf: on return contains a string with the list sizes 5787 * 5788 * Returns: size of formatted string. 5789 **/ 5790 static ssize_t 5791 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5792 char *buf) 5793 { 5794 struct Scsi_Host *shost = class_to_shost(dev); 5795 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5796 struct lpfc_hba *phba = vport->phba; 5797 int len; 5798 5799 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5800 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5801 5802 len += scnprintf(buf + len, PAGE_SIZE - len, 5803 "Cfg: %d SCSI: %d NVME: %d\n", 5804 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5805 phba->cfg_nvme_seg_cnt); 5806 return len; 5807 } 5808 5809 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5810 5811 /** 5812 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5813 * @phba: lpfc_hba pointer. 5814 * @val: contains the initial value 5815 * 5816 * Description: 5817 * Validates the initial value is within range and assigns it to the 5818 * adapter. If not in range, an error message is posted and the 5819 * default value is assigned. 5820 * 5821 * Returns: 5822 * zero if value is in range and is set 5823 * -EINVAL if value was out of range 5824 **/ 5825 static int 5826 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5827 { 5828 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5829 phba->cfg_sg_seg_cnt = val; 5830 return 0; 5831 } 5832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5833 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 5834 "allowed range is [%d, %d]\n", 5835 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5836 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5837 return -EINVAL; 5838 } 5839 5840 /* 5841 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5842 * 0 = MDS Diagnostics disabled (default) 5843 * 1 = MDS Diagnostics enabled 5844 * Value range is [0,1]. Default value is 0. 5845 */ 5846 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5847 5848 /* 5849 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5850 * 0 = Disable firmware logging (default) 5851 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 5852 * Value range [0..4]. Default value is 0 5853 */ 5854 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 5855 lpfc_param_show(ras_fwlog_buffsize); 5856 5857 static ssize_t 5858 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 5859 { 5860 int ret = 0; 5861 enum ras_state state; 5862 5863 if (!lpfc_rangecheck(val, 0, 4)) 5864 return -EINVAL; 5865 5866 if (phba->cfg_ras_fwlog_buffsize == val) 5867 return 0; 5868 5869 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 5870 return -EINVAL; 5871 5872 spin_lock_irq(&phba->ras_fwlog_lock); 5873 state = phba->ras_fwlog.state; 5874 spin_unlock_irq(&phba->ras_fwlog_lock); 5875 5876 if (state == REG_INPROGRESS) { 5877 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 5878 "registration is in progress\n"); 5879 return -EBUSY; 5880 } 5881 5882 /* For disable logging: stop the logs and free the DMA. 5883 * For ras_fwlog_buffsize size change we still need to free and 5884 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 5885 */ 5886 phba->cfg_ras_fwlog_buffsize = val; 5887 if (state == ACTIVE) { 5888 lpfc_ras_stop_fwlog(phba); 5889 lpfc_sli4_ras_dma_free(phba); 5890 } 5891 5892 lpfc_sli4_ras_init(phba); 5893 if (phba->ras_fwlog.ras_enabled) 5894 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 5895 LPFC_RAS_ENABLE_LOGGING); 5896 return ret; 5897 } 5898 5899 lpfc_param_store(ras_fwlog_buffsize); 5900 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 5901 5902 /* 5903 * lpfc_ras_fwlog_level: Firmware logging verbosity level 5904 * Valid only if firmware logging is enabled 5905 * 0(Least Verbosity) 4 (most verbosity) 5906 * Value range is [0..4]. Default value is 0 5907 */ 5908 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 5909 5910 /* 5911 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 5912 * Default function which has RAS support : 0 5913 * Value Range is [0..7]. 5914 * FW logging is a global action and enablement is via a specific 5915 * port. 5916 */ 5917 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 5918 5919 /* 5920 * lpfc_enable_bbcr: Enable BB Credit Recovery 5921 * 0 = BB Credit Recovery disabled 5922 * 1 = BB Credit Recovery enabled (default) 5923 * Value range is [0,1]. Default value is 1. 5924 */ 5925 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 5926 5927 /* Signaling module parameters */ 5928 int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 5929 module_param(lpfc_fabric_cgn_frequency, int, 0444); 5930 MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 5931 5932 unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 5933 module_param(lpfc_acqe_cgn_frequency, byte, 0444); 5934 MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 5935 5936 int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 5937 module_param(lpfc_use_cgn_signal, int, 0444); 5938 MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 5939 5940 /* 5941 * lpfc_enable_dpp: Enable DPP on G7 5942 * 0 = DPP on G7 disabled 5943 * 1 = DPP on G7 enabled (default) 5944 * Value range is [0,1]. Default value is 1. 5945 */ 5946 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 5947 5948 /* 5949 * lpfc_enable_mi: Enable FDMI MIB 5950 * 0 = disabled 5951 * 1 = enabled (default) 5952 * Value range is [0,1]. 5953 */ 5954 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 5955 5956 /* 5957 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 5958 * either vmid_app_header or vmid_priority_tagging is enabled. 5959 * 4 - 255 = vmid support enabled for 4-255 VMs 5960 * Value range is [4,255]. 5961 */ 5962 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 5963 "Maximum number of VMs supported"); 5964 5965 /* 5966 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 5967 * 0 = Timeout is disabled 5968 * Value range is [0,24]. 5969 */ 5970 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 5971 "Inactivity timeout in hours"); 5972 5973 /* 5974 * lpfc_vmid_app_header: Enable App Header VMID support 5975 * 0 = Support is disabled (default) 5976 * 1 = Support is enabled 5977 * Value range is [0,1]. 5978 */ 5979 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 5980 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 5981 "Enable App Header VMID support"); 5982 5983 /* 5984 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 5985 * 0 = Support is disabled (default) 5986 * 1 = Allow supported targets only 5987 * 2 = Allow all targets 5988 * Value range is [0,2]. 5989 */ 5990 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 5991 LPFC_VMID_PRIO_TAG_DISABLE, 5992 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 5993 "Enable Priority Tagging VMID support"); 5994 5995 static struct attribute *lpfc_hba_attrs[] = { 5996 &dev_attr_nvme_info.attr, 5997 &dev_attr_scsi_stat.attr, 5998 &dev_attr_bg_info.attr, 5999 &dev_attr_bg_guard_err.attr, 6000 &dev_attr_bg_apptag_err.attr, 6001 &dev_attr_bg_reftag_err.attr, 6002 &dev_attr_info.attr, 6003 &dev_attr_serialnum.attr, 6004 &dev_attr_modeldesc.attr, 6005 &dev_attr_modelname.attr, 6006 &dev_attr_programtype.attr, 6007 &dev_attr_portnum.attr, 6008 &dev_attr_fwrev.attr, 6009 &dev_attr_hdw.attr, 6010 &dev_attr_option_rom_version.attr, 6011 &dev_attr_link_state.attr, 6012 &dev_attr_num_discovered_ports.attr, 6013 &dev_attr_lpfc_drvr_version.attr, 6014 &dev_attr_lpfc_enable_fip.attr, 6015 &dev_attr_lpfc_temp_sensor.attr, 6016 &dev_attr_lpfc_log_verbose.attr, 6017 &dev_attr_lpfc_lun_queue_depth.attr, 6018 &dev_attr_lpfc_tgt_queue_depth.attr, 6019 &dev_attr_lpfc_hba_queue_depth.attr, 6020 &dev_attr_lpfc_peer_port_login.attr, 6021 &dev_attr_lpfc_nodev_tmo.attr, 6022 &dev_attr_lpfc_devloss_tmo.attr, 6023 &dev_attr_lpfc_enable_fc4_type.attr, 6024 &dev_attr_lpfc_fcp_class.attr, 6025 &dev_attr_lpfc_use_adisc.attr, 6026 &dev_attr_lpfc_first_burst_size.attr, 6027 &dev_attr_lpfc_ack0.attr, 6028 &dev_attr_lpfc_xri_rebalancing.attr, 6029 &dev_attr_lpfc_topology.attr, 6030 &dev_attr_lpfc_scan_down.attr, 6031 &dev_attr_lpfc_link_speed.attr, 6032 &dev_attr_lpfc_fcp_io_sched.attr, 6033 &dev_attr_lpfc_ns_query.attr, 6034 &dev_attr_lpfc_fcp2_no_tgt_reset.attr, 6035 &dev_attr_lpfc_cr_delay.attr, 6036 &dev_attr_lpfc_cr_count.attr, 6037 &dev_attr_lpfc_multi_ring_support.attr, 6038 &dev_attr_lpfc_multi_ring_rctl.attr, 6039 &dev_attr_lpfc_multi_ring_type.attr, 6040 &dev_attr_lpfc_fdmi_on.attr, 6041 &dev_attr_lpfc_enable_SmartSAN.attr, 6042 &dev_attr_lpfc_max_luns.attr, 6043 &dev_attr_lpfc_enable_npiv.attr, 6044 &dev_attr_lpfc_fcf_failover_policy.attr, 6045 &dev_attr_lpfc_enable_rrq.attr, 6046 &dev_attr_lpfc_fcp_wait_abts_rsp.attr, 6047 &dev_attr_nport_evt_cnt.attr, 6048 &dev_attr_board_mode.attr, 6049 &dev_attr_lpfc_xcvr_data.attr, 6050 &dev_attr_max_vpi.attr, 6051 &dev_attr_used_vpi.attr, 6052 &dev_attr_max_rpi.attr, 6053 &dev_attr_used_rpi.attr, 6054 &dev_attr_max_xri.attr, 6055 &dev_attr_used_xri.attr, 6056 &dev_attr_npiv_info.attr, 6057 &dev_attr_issue_reset.attr, 6058 &dev_attr_lpfc_poll.attr, 6059 &dev_attr_lpfc_poll_tmo.attr, 6060 &dev_attr_lpfc_task_mgmt_tmo.attr, 6061 &dev_attr_lpfc_use_msi.attr, 6062 &dev_attr_lpfc_nvme_oas.attr, 6063 &dev_attr_lpfc_nvme_embed_cmd.attr, 6064 &dev_attr_lpfc_fcp_imax.attr, 6065 &dev_attr_lpfc_force_rscn.attr, 6066 &dev_attr_lpfc_cq_poll_threshold.attr, 6067 &dev_attr_lpfc_cq_max_proc_limit.attr, 6068 &dev_attr_lpfc_fcp_cpu_map.attr, 6069 &dev_attr_lpfc_fcp_mq_threshold.attr, 6070 &dev_attr_lpfc_hdw_queue.attr, 6071 &dev_attr_lpfc_irq_chann.attr, 6072 &dev_attr_lpfc_suppress_rsp.attr, 6073 &dev_attr_lpfc_nvmet_mrq.attr, 6074 &dev_attr_lpfc_nvmet_mrq_post.attr, 6075 &dev_attr_lpfc_nvme_enable_fb.attr, 6076 &dev_attr_lpfc_nvmet_fb_size.attr, 6077 &dev_attr_lpfc_enable_bg.attr, 6078 &dev_attr_lpfc_enable_hba_reset.attr, 6079 &dev_attr_lpfc_enable_hba_heartbeat.attr, 6080 &dev_attr_lpfc_EnableXLane.attr, 6081 &dev_attr_lpfc_XLanePriority.attr, 6082 &dev_attr_lpfc_xlane_lun.attr, 6083 &dev_attr_lpfc_xlane_tgt.attr, 6084 &dev_attr_lpfc_xlane_vpt.attr, 6085 &dev_attr_lpfc_xlane_lun_state.attr, 6086 &dev_attr_lpfc_xlane_lun_status.attr, 6087 &dev_attr_lpfc_xlane_priority.attr, 6088 &dev_attr_lpfc_sg_seg_cnt.attr, 6089 &dev_attr_lpfc_max_scsicmpl_time.attr, 6090 &dev_attr_lpfc_aer_support.attr, 6091 &dev_attr_lpfc_aer_state_cleanup.attr, 6092 &dev_attr_lpfc_sriov_nr_virtfn.attr, 6093 &dev_attr_lpfc_req_fw_upgrade.attr, 6094 &dev_attr_lpfc_suppress_link_up.attr, 6095 &dev_attr_iocb_hw.attr, 6096 &dev_attr_pls.attr, 6097 &dev_attr_pt.attr, 6098 &dev_attr_txq_hw.attr, 6099 &dev_attr_txcmplq_hw.attr, 6100 &dev_attr_lpfc_sriov_hw_max_virtfn.attr, 6101 &dev_attr_protocol.attr, 6102 &dev_attr_lpfc_xlane_supported.attr, 6103 &dev_attr_lpfc_enable_mds_diags.attr, 6104 &dev_attr_lpfc_ras_fwlog_buffsize.attr, 6105 &dev_attr_lpfc_ras_fwlog_level.attr, 6106 &dev_attr_lpfc_ras_fwlog_func.attr, 6107 &dev_attr_lpfc_enable_bbcr.attr, 6108 &dev_attr_lpfc_enable_dpp.attr, 6109 &dev_attr_lpfc_enable_mi.attr, 6110 &dev_attr_cmf_info.attr, 6111 &dev_attr_lpfc_max_vmid.attr, 6112 &dev_attr_lpfc_vmid_inactivity_timeout.attr, 6113 &dev_attr_lpfc_vmid_app_header.attr, 6114 &dev_attr_lpfc_vmid_priority_tagging.attr, 6115 NULL, 6116 }; 6117 6118 static const struct attribute_group lpfc_hba_attr_group = { 6119 .attrs = lpfc_hba_attrs 6120 }; 6121 6122 const struct attribute_group *lpfc_hba_groups[] = { 6123 &lpfc_hba_attr_group, 6124 NULL 6125 }; 6126 6127 static struct attribute *lpfc_vport_attrs[] = { 6128 &dev_attr_info.attr, 6129 &dev_attr_link_state.attr, 6130 &dev_attr_num_discovered_ports.attr, 6131 &dev_attr_lpfc_drvr_version.attr, 6132 &dev_attr_lpfc_log_verbose.attr, 6133 &dev_attr_lpfc_lun_queue_depth.attr, 6134 &dev_attr_lpfc_tgt_queue_depth.attr, 6135 &dev_attr_lpfc_nodev_tmo.attr, 6136 &dev_attr_lpfc_devloss_tmo.attr, 6137 &dev_attr_lpfc_hba_queue_depth.attr, 6138 &dev_attr_lpfc_peer_port_login.attr, 6139 &dev_attr_lpfc_restrict_login.attr, 6140 &dev_attr_lpfc_fcp_class.attr, 6141 &dev_attr_lpfc_use_adisc.attr, 6142 &dev_attr_lpfc_first_burst_size.attr, 6143 &dev_attr_lpfc_max_luns.attr, 6144 &dev_attr_nport_evt_cnt.attr, 6145 &dev_attr_npiv_info.attr, 6146 &dev_attr_lpfc_enable_da_id.attr, 6147 &dev_attr_lpfc_max_scsicmpl_time.attr, 6148 &dev_attr_lpfc_static_vport.attr, 6149 &dev_attr_cmf_info.attr, 6150 NULL, 6151 }; 6152 6153 static const struct attribute_group lpfc_vport_attr_group = { 6154 .attrs = lpfc_vport_attrs 6155 }; 6156 6157 const struct attribute_group *lpfc_vport_groups[] = { 6158 &lpfc_vport_attr_group, 6159 NULL 6160 }; 6161 6162 /** 6163 * sysfs_ctlreg_write - Write method for writing to ctlreg 6164 * @filp: open sysfs file 6165 * @kobj: kernel kobject that contains the kernel class device. 6166 * @bin_attr: kernel attributes passed to us. 6167 * @buf: contains the data to be written to the adapter IOREG space. 6168 * @off: offset into buffer to beginning of data. 6169 * @count: bytes to transfer. 6170 * 6171 * Description: 6172 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6173 * Uses the adapter io control registers to send buf contents to the adapter. 6174 * 6175 * Returns: 6176 * -ERANGE off and count combo out of range 6177 * -EINVAL off, count or buff address invalid 6178 * -EPERM adapter is offline 6179 * value of count, buf contents written 6180 **/ 6181 static ssize_t 6182 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6183 struct bin_attribute *bin_attr, 6184 char *buf, loff_t off, size_t count) 6185 { 6186 size_t buf_off; 6187 struct device *dev = container_of(kobj, struct device, kobj); 6188 struct Scsi_Host *shost = class_to_shost(dev); 6189 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6190 struct lpfc_hba *phba = vport->phba; 6191 6192 if (phba->sli_rev >= LPFC_SLI_REV4) 6193 return -EPERM; 6194 6195 if ((off + count) > FF_REG_AREA_SIZE) 6196 return -ERANGE; 6197 6198 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6199 return 0; 6200 6201 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6202 return -EINVAL; 6203 6204 /* This is to protect HBA registers from accidental writes. */ 6205 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6206 return -EINVAL; 6207 6208 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6209 return -EPERM; 6210 6211 spin_lock_irq(&phba->hbalock); 6212 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6213 buf_off += sizeof(uint32_t)) 6214 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6215 phba->ctrl_regs_memmap_p + off + buf_off); 6216 6217 spin_unlock_irq(&phba->hbalock); 6218 6219 return count; 6220 } 6221 6222 /** 6223 * sysfs_ctlreg_read - Read method for reading from ctlreg 6224 * @filp: open sysfs file 6225 * @kobj: kernel kobject that contains the kernel class device. 6226 * @bin_attr: kernel attributes passed to us. 6227 * @buf: if successful contains the data from the adapter IOREG space. 6228 * @off: offset into buffer to beginning of data. 6229 * @count: bytes to transfer. 6230 * 6231 * Description: 6232 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6233 * Uses the adapter io control registers to read data into buf. 6234 * 6235 * Returns: 6236 * -ERANGE off and count combo out of range 6237 * -EINVAL off, count or buff address invalid 6238 * value of count, buf contents read 6239 **/ 6240 static ssize_t 6241 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6242 struct bin_attribute *bin_attr, 6243 char *buf, loff_t off, size_t count) 6244 { 6245 size_t buf_off; 6246 uint32_t * tmp_ptr; 6247 struct device *dev = container_of(kobj, struct device, kobj); 6248 struct Scsi_Host *shost = class_to_shost(dev); 6249 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6250 struct lpfc_hba *phba = vport->phba; 6251 6252 if (phba->sli_rev >= LPFC_SLI_REV4) 6253 return -EPERM; 6254 6255 if (off > FF_REG_AREA_SIZE) 6256 return -ERANGE; 6257 6258 if ((off + count) > FF_REG_AREA_SIZE) 6259 count = FF_REG_AREA_SIZE - off; 6260 6261 if (count == 0) return 0; 6262 6263 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6264 return -EINVAL; 6265 6266 spin_lock_irq(&phba->hbalock); 6267 6268 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6269 tmp_ptr = (uint32_t *)(buf + buf_off); 6270 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6271 } 6272 6273 spin_unlock_irq(&phba->hbalock); 6274 6275 return count; 6276 } 6277 6278 static struct bin_attribute sysfs_ctlreg_attr = { 6279 .attr = { 6280 .name = "ctlreg", 6281 .mode = S_IRUSR | S_IWUSR, 6282 }, 6283 .size = 256, 6284 .read = sysfs_ctlreg_read, 6285 .write = sysfs_ctlreg_write, 6286 }; 6287 6288 /** 6289 * sysfs_mbox_write - Write method for writing information via mbox 6290 * @filp: open sysfs file 6291 * @kobj: kernel kobject that contains the kernel class device. 6292 * @bin_attr: kernel attributes passed to us. 6293 * @buf: contains the data to be written to sysfs mbox. 6294 * @off: offset into buffer to beginning of data. 6295 * @count: bytes to transfer. 6296 * 6297 * Description: 6298 * Deprecated function. All mailbox access from user space is performed via the 6299 * bsg interface. 6300 * 6301 * Returns: 6302 * -EPERM operation not permitted 6303 **/ 6304 static ssize_t 6305 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6306 struct bin_attribute *bin_attr, 6307 char *buf, loff_t off, size_t count) 6308 { 6309 return -EPERM; 6310 } 6311 6312 /** 6313 * sysfs_mbox_read - Read method for reading information via mbox 6314 * @filp: open sysfs file 6315 * @kobj: kernel kobject that contains the kernel class device. 6316 * @bin_attr: kernel attributes passed to us. 6317 * @buf: contains the data to be read from sysfs mbox. 6318 * @off: offset into buffer to beginning of data. 6319 * @count: bytes to transfer. 6320 * 6321 * Description: 6322 * Deprecated function. All mailbox access from user space is performed via the 6323 * bsg interface. 6324 * 6325 * Returns: 6326 * -EPERM operation not permitted 6327 **/ 6328 static ssize_t 6329 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6330 struct bin_attribute *bin_attr, 6331 char *buf, loff_t off, size_t count) 6332 { 6333 return -EPERM; 6334 } 6335 6336 static struct bin_attribute sysfs_mbox_attr = { 6337 .attr = { 6338 .name = "mbox", 6339 .mode = S_IRUSR | S_IWUSR, 6340 }, 6341 .size = MAILBOX_SYSFS_MAX, 6342 .read = sysfs_mbox_read, 6343 .write = sysfs_mbox_write, 6344 }; 6345 6346 /** 6347 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6348 * @vport: address of lpfc vport structure. 6349 * 6350 * Return codes: 6351 * zero on success 6352 * error return code from sysfs_create_bin_file() 6353 **/ 6354 int 6355 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6356 { 6357 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6358 int error; 6359 6360 /* Virtual ports do not need ctrl_reg and mbox */ 6361 if (vport->port_type == LPFC_NPIV_PORT) 6362 return 0; 6363 6364 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6365 &sysfs_ctlreg_attr); 6366 if (error) 6367 goto out; 6368 6369 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6370 &sysfs_mbox_attr); 6371 if (error) 6372 goto out_remove_ctlreg_attr; 6373 6374 return 0; 6375 out_remove_ctlreg_attr: 6376 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6377 out: 6378 return error; 6379 } 6380 6381 /** 6382 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6383 * @vport: address of lpfc vport structure. 6384 **/ 6385 void 6386 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6387 { 6388 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6389 6390 /* Virtual ports do not need ctrl_reg and mbox */ 6391 if (vport->port_type == LPFC_NPIV_PORT) 6392 return; 6393 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6394 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6395 } 6396 6397 /* 6398 * Dynamic FC Host Attributes Support 6399 */ 6400 6401 /** 6402 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6403 * @shost: kernel scsi host pointer. 6404 **/ 6405 static void 6406 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6407 { 6408 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6409 6410 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6411 sizeof fc_host_symbolic_name(shost)); 6412 } 6413 6414 /** 6415 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6416 * @shost: kernel scsi host pointer. 6417 **/ 6418 static void 6419 lpfc_get_host_port_id(struct Scsi_Host *shost) 6420 { 6421 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6422 6423 /* note: fc_myDID already in cpu endianness */ 6424 fc_host_port_id(shost) = vport->fc_myDID; 6425 } 6426 6427 /** 6428 * lpfc_get_host_port_type - Set the value of the scsi host port type 6429 * @shost: kernel scsi host pointer. 6430 **/ 6431 static void 6432 lpfc_get_host_port_type(struct Scsi_Host *shost) 6433 { 6434 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6435 struct lpfc_hba *phba = vport->phba; 6436 6437 spin_lock_irq(shost->host_lock); 6438 6439 if (vport->port_type == LPFC_NPIV_PORT) { 6440 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6441 } else if (lpfc_is_link_up(phba)) { 6442 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6443 if (vport->fc_flag & FC_PUBLIC_LOOP) 6444 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6445 else 6446 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6447 } else { 6448 if (vport->fc_flag & FC_FABRIC) 6449 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6450 else 6451 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6452 } 6453 } else 6454 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6455 6456 spin_unlock_irq(shost->host_lock); 6457 } 6458 6459 /** 6460 * lpfc_get_host_port_state - Set the value of the scsi host port state 6461 * @shost: kernel scsi host pointer. 6462 **/ 6463 static void 6464 lpfc_get_host_port_state(struct Scsi_Host *shost) 6465 { 6466 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6467 struct lpfc_hba *phba = vport->phba; 6468 6469 spin_lock_irq(shost->host_lock); 6470 6471 if (vport->fc_flag & FC_OFFLINE_MODE) 6472 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6473 else { 6474 switch (phba->link_state) { 6475 case LPFC_LINK_UNKNOWN: 6476 case LPFC_LINK_DOWN: 6477 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6478 break; 6479 case LPFC_LINK_UP: 6480 case LPFC_CLEAR_LA: 6481 case LPFC_HBA_READY: 6482 /* Links up, reports port state accordingly */ 6483 if (vport->port_state < LPFC_VPORT_READY) 6484 fc_host_port_state(shost) = 6485 FC_PORTSTATE_BYPASSED; 6486 else 6487 fc_host_port_state(shost) = 6488 FC_PORTSTATE_ONLINE; 6489 break; 6490 case LPFC_HBA_ERROR: 6491 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6492 break; 6493 default: 6494 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6495 break; 6496 } 6497 } 6498 6499 spin_unlock_irq(shost->host_lock); 6500 } 6501 6502 /** 6503 * lpfc_get_host_speed - Set the value of the scsi host speed 6504 * @shost: kernel scsi host pointer. 6505 **/ 6506 static void 6507 lpfc_get_host_speed(struct Scsi_Host *shost) 6508 { 6509 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6510 struct lpfc_hba *phba = vport->phba; 6511 6512 spin_lock_irq(shost->host_lock); 6513 6514 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6515 switch(phba->fc_linkspeed) { 6516 case LPFC_LINK_SPEED_1GHZ: 6517 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6518 break; 6519 case LPFC_LINK_SPEED_2GHZ: 6520 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6521 break; 6522 case LPFC_LINK_SPEED_4GHZ: 6523 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6524 break; 6525 case LPFC_LINK_SPEED_8GHZ: 6526 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6527 break; 6528 case LPFC_LINK_SPEED_10GHZ: 6529 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6530 break; 6531 case LPFC_LINK_SPEED_16GHZ: 6532 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6533 break; 6534 case LPFC_LINK_SPEED_32GHZ: 6535 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6536 break; 6537 case LPFC_LINK_SPEED_64GHZ: 6538 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6539 break; 6540 case LPFC_LINK_SPEED_128GHZ: 6541 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6542 break; 6543 case LPFC_LINK_SPEED_256GHZ: 6544 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6545 break; 6546 default: 6547 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6548 break; 6549 } 6550 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6551 switch (phba->fc_linkspeed) { 6552 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6553 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6554 break; 6555 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6556 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6557 break; 6558 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6559 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6560 break; 6561 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6562 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6563 break; 6564 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6565 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6566 break; 6567 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6568 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6569 break; 6570 default: 6571 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6572 break; 6573 } 6574 } else 6575 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6576 6577 spin_unlock_irq(shost->host_lock); 6578 } 6579 6580 /** 6581 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6582 * @shost: kernel scsi host pointer. 6583 **/ 6584 static void 6585 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6586 { 6587 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6588 struct lpfc_hba *phba = vport->phba; 6589 u64 node_name; 6590 6591 spin_lock_irq(shost->host_lock); 6592 6593 if ((vport->port_state > LPFC_FLOGI) && 6594 ((vport->fc_flag & FC_FABRIC) || 6595 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6596 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6597 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6598 else 6599 /* fabric is local port if there is no F/FL_Port */ 6600 node_name = 0; 6601 6602 spin_unlock_irq(shost->host_lock); 6603 6604 fc_host_fabric_name(shost) = node_name; 6605 } 6606 6607 /** 6608 * lpfc_get_stats - Return statistical information about the adapter 6609 * @shost: kernel scsi host pointer. 6610 * 6611 * Notes: 6612 * NULL on error for link down, no mbox pool, sli2 active, 6613 * management not allowed, memory allocation error, or mbox error. 6614 * 6615 * Returns: 6616 * NULL for error 6617 * address of the adapter host statistics 6618 **/ 6619 static struct fc_host_statistics * 6620 lpfc_get_stats(struct Scsi_Host *shost) 6621 { 6622 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6623 struct lpfc_hba *phba = vport->phba; 6624 struct lpfc_sli *psli = &phba->sli; 6625 struct fc_host_statistics *hs = &phba->link_stats; 6626 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6627 LPFC_MBOXQ_t *pmboxq; 6628 MAILBOX_t *pmb; 6629 int rc = 0; 6630 6631 /* 6632 * prevent udev from issuing mailbox commands until the port is 6633 * configured. 6634 */ 6635 if (phba->link_state < LPFC_LINK_DOWN || 6636 !phba->mbox_mem_pool || 6637 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6638 return NULL; 6639 6640 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6641 return NULL; 6642 6643 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6644 if (!pmboxq) 6645 return NULL; 6646 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6647 6648 pmb = &pmboxq->u.mb; 6649 pmb->mbxCommand = MBX_READ_STATUS; 6650 pmb->mbxOwner = OWN_HOST; 6651 pmboxq->ctx_buf = NULL; 6652 pmboxq->vport = vport; 6653 6654 if (vport->fc_flag & FC_OFFLINE_MODE) { 6655 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6656 if (rc != MBX_SUCCESS) { 6657 mempool_free(pmboxq, phba->mbox_mem_pool); 6658 return NULL; 6659 } 6660 } else { 6661 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6662 if (rc != MBX_SUCCESS) { 6663 if (rc != MBX_TIMEOUT) 6664 mempool_free(pmboxq, phba->mbox_mem_pool); 6665 return NULL; 6666 } 6667 } 6668 6669 memset(hs, 0, sizeof (struct fc_host_statistics)); 6670 6671 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6672 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6673 6674 /* 6675 * The MBX_READ_STATUS returns tx_k_bytes which has to be 6676 * converted to words. 6677 * 6678 * Check if extended byte flag is set, to know when to collect upper 6679 * bits of 64 bit wide statistics counter. 6680 */ 6681 if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { 6682 hs->tx_words = (u64) 6683 ((((u64)(pmb->un.varRdStatus.xmit_xkb & 6684 RD_ST_XMIT_XKB_MASK) << 32) | 6685 (u64)pmb->un.varRdStatus.xmitByteCnt) * 6686 (u64)256); 6687 hs->rx_words = (u64) 6688 ((((u64)(pmb->un.varRdStatus.rcv_xkb & 6689 RD_ST_RCV_XKB_MASK) << 32) | 6690 (u64)pmb->un.varRdStatus.rcvByteCnt) * 6691 (u64)256); 6692 } else { 6693 hs->tx_words = (uint64_t) 6694 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6695 * (uint64_t)256); 6696 hs->rx_words = (uint64_t) 6697 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6698 * (uint64_t)256); 6699 } 6700 6701 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6702 pmb->mbxCommand = MBX_READ_LNK_STAT; 6703 pmb->mbxOwner = OWN_HOST; 6704 pmboxq->ctx_buf = NULL; 6705 pmboxq->vport = vport; 6706 6707 if (vport->fc_flag & FC_OFFLINE_MODE) { 6708 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6709 if (rc != MBX_SUCCESS) { 6710 mempool_free(pmboxq, phba->mbox_mem_pool); 6711 return NULL; 6712 } 6713 } else { 6714 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6715 if (rc != MBX_SUCCESS) { 6716 if (rc != MBX_TIMEOUT) 6717 mempool_free(pmboxq, phba->mbox_mem_pool); 6718 return NULL; 6719 } 6720 } 6721 6722 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6723 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6724 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6725 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6726 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6727 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6728 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6729 6730 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 6731 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 6732 6733 hs->link_failure_count -= lso->link_failure_count; 6734 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6735 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6736 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6737 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6738 hs->invalid_crc_count -= lso->invalid_crc_count; 6739 hs->error_frames -= lso->error_frames; 6740 6741 if (phba->hba_flag & HBA_FCOE_MODE) { 6742 hs->lip_count = -1; 6743 hs->nos_count = (phba->link_events >> 1); 6744 hs->nos_count -= lso->link_events; 6745 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6746 hs->lip_count = (phba->fc_eventTag >> 1); 6747 hs->lip_count -= lso->link_events; 6748 hs->nos_count = -1; 6749 } else { 6750 hs->lip_count = -1; 6751 hs->nos_count = (phba->fc_eventTag >> 1); 6752 hs->nos_count -= lso->link_events; 6753 } 6754 6755 hs->dumped_frames = -1; 6756 6757 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6758 6759 mempool_free(pmboxq, phba->mbox_mem_pool); 6760 6761 return hs; 6762 } 6763 6764 /** 6765 * lpfc_reset_stats - Copy the adapter link stats information 6766 * @shost: kernel scsi host pointer. 6767 **/ 6768 static void 6769 lpfc_reset_stats(struct Scsi_Host *shost) 6770 { 6771 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6772 struct lpfc_hba *phba = vport->phba; 6773 struct lpfc_sli *psli = &phba->sli; 6774 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6775 LPFC_MBOXQ_t *pmboxq; 6776 MAILBOX_t *pmb; 6777 int rc = 0; 6778 6779 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6780 return; 6781 6782 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6783 if (!pmboxq) 6784 return; 6785 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6786 6787 pmb = &pmboxq->u.mb; 6788 pmb->mbxCommand = MBX_READ_STATUS; 6789 pmb->mbxOwner = OWN_HOST; 6790 pmb->un.varWords[0] = 0x1; /* reset request */ 6791 pmboxq->ctx_buf = NULL; 6792 pmboxq->vport = vport; 6793 6794 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6795 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6796 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6797 if (rc != MBX_SUCCESS) { 6798 mempool_free(pmboxq, phba->mbox_mem_pool); 6799 return; 6800 } 6801 } else { 6802 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6803 if (rc != MBX_SUCCESS) { 6804 if (rc != MBX_TIMEOUT) 6805 mempool_free(pmboxq, phba->mbox_mem_pool); 6806 return; 6807 } 6808 } 6809 6810 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6811 pmb->mbxCommand = MBX_READ_LNK_STAT; 6812 pmb->mbxOwner = OWN_HOST; 6813 pmboxq->ctx_buf = NULL; 6814 pmboxq->vport = vport; 6815 6816 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6817 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6818 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6819 if (rc != MBX_SUCCESS) { 6820 mempool_free(pmboxq, phba->mbox_mem_pool); 6821 return; 6822 } 6823 } else { 6824 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6825 if (rc != MBX_SUCCESS) { 6826 if (rc != MBX_TIMEOUT) 6827 mempool_free(pmboxq, phba->mbox_mem_pool); 6828 return; 6829 } 6830 } 6831 6832 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6833 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6834 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6835 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6836 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6837 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6838 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6839 if (phba->hba_flag & HBA_FCOE_MODE) 6840 lso->link_events = (phba->link_events >> 1); 6841 else 6842 lso->link_events = (phba->fc_eventTag >> 1); 6843 6844 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 6845 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 6846 6847 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 6848 sizeof(shost_to_fc_host(shost)->fpin_stats)); 6849 6850 psli->stats_start = ktime_get_seconds(); 6851 6852 mempool_free(pmboxq, phba->mbox_mem_pool); 6853 6854 return; 6855 } 6856 6857 /* 6858 * The LPFC driver treats linkdown handling as target loss events so there 6859 * are no sysfs handlers for link_down_tmo. 6860 */ 6861 6862 /** 6863 * lpfc_get_node_by_target - Return the nodelist for a target 6864 * @starget: kernel scsi target pointer. 6865 * 6866 * Returns: 6867 * address of the node list if found 6868 * NULL target not found 6869 **/ 6870 static struct lpfc_nodelist * 6871 lpfc_get_node_by_target(struct scsi_target *starget) 6872 { 6873 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6874 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6875 struct lpfc_nodelist *ndlp; 6876 6877 spin_lock_irq(shost->host_lock); 6878 /* Search for this, mapped, target ID */ 6879 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6880 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6881 starget->id == ndlp->nlp_sid) { 6882 spin_unlock_irq(shost->host_lock); 6883 return ndlp; 6884 } 6885 } 6886 spin_unlock_irq(shost->host_lock); 6887 return NULL; 6888 } 6889 6890 /** 6891 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6892 * @starget: kernel scsi target pointer. 6893 **/ 6894 static void 6895 lpfc_get_starget_port_id(struct scsi_target *starget) 6896 { 6897 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6898 6899 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6900 } 6901 6902 /** 6903 * lpfc_get_starget_node_name - Set the target node name 6904 * @starget: kernel scsi target pointer. 6905 * 6906 * Description: Set the target node name to the ndlp node name wwn or zero. 6907 **/ 6908 static void 6909 lpfc_get_starget_node_name(struct scsi_target *starget) 6910 { 6911 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6912 6913 fc_starget_node_name(starget) = 6914 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6915 } 6916 6917 /** 6918 * lpfc_get_starget_port_name - Set the target port name 6919 * @starget: kernel scsi target pointer. 6920 * 6921 * Description: set the target port name to the ndlp port name wwn or zero. 6922 **/ 6923 static void 6924 lpfc_get_starget_port_name(struct scsi_target *starget) 6925 { 6926 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6927 6928 fc_starget_port_name(starget) = 6929 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6930 } 6931 6932 /** 6933 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6934 * @rport: fc rport address. 6935 * @timeout: new value for dev loss tmo. 6936 * 6937 * Description: 6938 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6939 * dev_loss_tmo to one. 6940 **/ 6941 static void 6942 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6943 { 6944 struct lpfc_rport_data *rdata = rport->dd_data; 6945 struct lpfc_nodelist *ndlp = rdata->pnode; 6946 #if (IS_ENABLED(CONFIG_NVME_FC)) 6947 struct lpfc_nvme_rport *nrport = NULL; 6948 #endif 6949 6950 if (timeout) 6951 rport->dev_loss_tmo = timeout; 6952 else 6953 rport->dev_loss_tmo = 1; 6954 6955 if (!ndlp) { 6956 dev_info(&rport->dev, "Cannot find remote node to " 6957 "set rport dev loss tmo, port_id x%x\n", 6958 rport->port_id); 6959 return; 6960 } 6961 6962 #if (IS_ENABLED(CONFIG_NVME_FC)) 6963 nrport = lpfc_ndlp_get_nrport(ndlp); 6964 6965 if (nrport && nrport->remoteport) 6966 nvme_fc_set_remoteport_devloss(nrport->remoteport, 6967 rport->dev_loss_tmo); 6968 #endif 6969 } 6970 6971 /* 6972 * lpfc_rport_show_function - Return rport target information 6973 * 6974 * Description: 6975 * Macro that uses field to generate a function with the name lpfc_show_rport_ 6976 * 6977 * lpfc_show_rport_##field: returns the bytes formatted in buf 6978 * @cdev: class converted to an fc_rport. 6979 * @buf: on return contains the target_field or zero. 6980 * 6981 * Returns: size of formatted string. 6982 **/ 6983 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 6984 static ssize_t \ 6985 lpfc_show_rport_##field (struct device *dev, \ 6986 struct device_attribute *attr, \ 6987 char *buf) \ 6988 { \ 6989 struct fc_rport *rport = transport_class_to_rport(dev); \ 6990 struct lpfc_rport_data *rdata = rport->hostdata; \ 6991 return scnprintf(buf, sz, format_string, \ 6992 (rdata->target) ? cast rdata->target->field : 0); \ 6993 } 6994 6995 #define lpfc_rport_rd_attr(field, format_string, sz) \ 6996 lpfc_rport_show_function(field, format_string, sz, ) \ 6997 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6998 6999 /** 7000 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7001 * @fc_vport: The fc_vport who's symbolic name has been changed. 7002 * 7003 * Description: 7004 * This function is called by the transport after the @fc_vport's symbolic name 7005 * has been changed. This function re-registers the symbolic name with the 7006 * switch to propagate the change into the fabric if the vport is active. 7007 **/ 7008 static void 7009 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7010 { 7011 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7012 7013 if (vport->port_state == LPFC_VPORT_READY) 7014 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7015 } 7016 7017 /** 7018 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7019 * @phba: Pointer to lpfc_hba struct. 7020 * @verbose: Verbose level to set. 7021 * 7022 * This function is called by the lpfc_get_cfgparam() routine to set the 7023 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7024 * log message according to the module's lpfc_log_verbose parameter setting 7025 * before hba port or vport created. 7026 **/ 7027 static void 7028 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7029 { 7030 phba->cfg_log_verbose = verbose; 7031 } 7032 7033 struct fc_function_template lpfc_transport_functions = { 7034 /* fixed attributes the driver supports */ 7035 .show_host_node_name = 1, 7036 .show_host_port_name = 1, 7037 .show_host_supported_classes = 1, 7038 .show_host_supported_fc4s = 1, 7039 .show_host_supported_speeds = 1, 7040 .show_host_maxframe_size = 1, 7041 7042 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7043 .show_host_symbolic_name = 1, 7044 7045 /* dynamic attributes the driver supports */ 7046 .get_host_port_id = lpfc_get_host_port_id, 7047 .show_host_port_id = 1, 7048 7049 .get_host_port_type = lpfc_get_host_port_type, 7050 .show_host_port_type = 1, 7051 7052 .get_host_port_state = lpfc_get_host_port_state, 7053 .show_host_port_state = 1, 7054 7055 /* active_fc4s is shown but doesn't change (thus no get function) */ 7056 .show_host_active_fc4s = 1, 7057 7058 .get_host_speed = lpfc_get_host_speed, 7059 .show_host_speed = 1, 7060 7061 .get_host_fabric_name = lpfc_get_host_fabric_name, 7062 .show_host_fabric_name = 1, 7063 7064 /* 7065 * The LPFC driver treats linkdown handling as target loss events 7066 * so there are no sysfs handlers for link_down_tmo. 7067 */ 7068 7069 .get_fc_host_stats = lpfc_get_stats, 7070 .reset_fc_host_stats = lpfc_reset_stats, 7071 7072 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7073 .show_rport_maxframe_size = 1, 7074 .show_rport_supported_classes = 1, 7075 7076 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7077 .show_rport_dev_loss_tmo = 1, 7078 7079 .get_starget_port_id = lpfc_get_starget_port_id, 7080 .show_starget_port_id = 1, 7081 7082 .get_starget_node_name = lpfc_get_starget_node_name, 7083 .show_starget_node_name = 1, 7084 7085 .get_starget_port_name = lpfc_get_starget_port_name, 7086 .show_starget_port_name = 1, 7087 7088 .issue_fc_host_lip = lpfc_issue_lip, 7089 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7090 .terminate_rport_io = lpfc_terminate_rport_io, 7091 7092 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7093 7094 .vport_disable = lpfc_vport_disable, 7095 7096 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7097 7098 .bsg_request = lpfc_bsg_request, 7099 .bsg_timeout = lpfc_bsg_timeout, 7100 }; 7101 7102 struct fc_function_template lpfc_vport_transport_functions = { 7103 /* fixed attributes the driver supports */ 7104 .show_host_node_name = 1, 7105 .show_host_port_name = 1, 7106 .show_host_supported_classes = 1, 7107 .show_host_supported_fc4s = 1, 7108 .show_host_supported_speeds = 1, 7109 .show_host_maxframe_size = 1, 7110 7111 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7112 .show_host_symbolic_name = 1, 7113 7114 /* dynamic attributes the driver supports */ 7115 .get_host_port_id = lpfc_get_host_port_id, 7116 .show_host_port_id = 1, 7117 7118 .get_host_port_type = lpfc_get_host_port_type, 7119 .show_host_port_type = 1, 7120 7121 .get_host_port_state = lpfc_get_host_port_state, 7122 .show_host_port_state = 1, 7123 7124 /* active_fc4s is shown but doesn't change (thus no get function) */ 7125 .show_host_active_fc4s = 1, 7126 7127 .get_host_speed = lpfc_get_host_speed, 7128 .show_host_speed = 1, 7129 7130 .get_host_fabric_name = lpfc_get_host_fabric_name, 7131 .show_host_fabric_name = 1, 7132 7133 /* 7134 * The LPFC driver treats linkdown handling as target loss events 7135 * so there are no sysfs handlers for link_down_tmo. 7136 */ 7137 7138 .get_fc_host_stats = lpfc_get_stats, 7139 .reset_fc_host_stats = lpfc_reset_stats, 7140 7141 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7142 .show_rport_maxframe_size = 1, 7143 .show_rport_supported_classes = 1, 7144 7145 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7146 .show_rport_dev_loss_tmo = 1, 7147 7148 .get_starget_port_id = lpfc_get_starget_port_id, 7149 .show_starget_port_id = 1, 7150 7151 .get_starget_node_name = lpfc_get_starget_node_name, 7152 .show_starget_node_name = 1, 7153 7154 .get_starget_port_name = lpfc_get_starget_port_name, 7155 .show_starget_port_name = 1, 7156 7157 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7158 .terminate_rport_io = lpfc_terminate_rport_io, 7159 7160 .vport_disable = lpfc_vport_disable, 7161 7162 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7163 }; 7164 7165 /** 7166 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7167 * Mode 7168 * @phba: lpfc_hba pointer. 7169 **/ 7170 static void 7171 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7172 { 7173 /* If the adapter supports FCoE mode */ 7174 switch (phba->pcidev->device) { 7175 case PCI_DEVICE_ID_SKYHAWK: 7176 case PCI_DEVICE_ID_SKYHAWK_VF: 7177 case PCI_DEVICE_ID_LANCER_FCOE: 7178 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7179 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7180 case PCI_DEVICE_ID_TIGERSHARK: 7181 case PCI_DEVICE_ID_TOMCAT: 7182 phba->hba_flag |= HBA_FCOE_MODE; 7183 break; 7184 default: 7185 /* for others, clear the flag */ 7186 phba->hba_flag &= ~HBA_FCOE_MODE; 7187 } 7188 } 7189 7190 /** 7191 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7192 * @phba: lpfc_hba pointer. 7193 **/ 7194 void 7195 lpfc_get_cfgparam(struct lpfc_hba *phba) 7196 { 7197 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7198 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7199 lpfc_ns_query_init(phba, lpfc_ns_query); 7200 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7201 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7202 lpfc_cr_count_init(phba, lpfc_cr_count); 7203 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7204 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7205 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7206 lpfc_ack0_init(phba, lpfc_ack0); 7207 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7208 lpfc_topology_init(phba, lpfc_topology); 7209 lpfc_link_speed_init(phba, lpfc_link_speed); 7210 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7211 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7212 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7213 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7214 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7215 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7216 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7217 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7218 lpfc_use_msi_init(phba, lpfc_use_msi); 7219 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7220 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7221 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7222 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7223 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7224 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7225 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7226 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7227 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7228 7229 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7230 /* VMID Inits */ 7231 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7232 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7233 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7234 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7235 if (phba->sli_rev != LPFC_SLI_REV4) 7236 phba->cfg_EnableXLane = 0; 7237 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7238 7239 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7240 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7241 phba->cfg_oas_lun_state = 0; 7242 phba->cfg_oas_lun_status = 0; 7243 phba->cfg_oas_flags = 0; 7244 phba->cfg_oas_priority = 0; 7245 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7246 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7247 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7248 if (phba->sli_rev == LPFC_SLI_REV4) 7249 phba->cfg_poll = 0; 7250 else 7251 phba->cfg_poll = lpfc_poll; 7252 7253 /* Get the function mode */ 7254 lpfc_get_hba_function_mode(phba); 7255 7256 /* BlockGuard allowed for FC only. */ 7257 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7258 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7259 "0581 BlockGuard feature not supported\n"); 7260 /* If set, clear the BlockGuard support param */ 7261 phba->cfg_enable_bg = 0; 7262 } else if (phba->cfg_enable_bg) { 7263 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7264 } 7265 7266 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7267 7268 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7269 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7270 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7271 7272 /* Initialize first burst. Target vs Initiator are different. */ 7273 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7274 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7275 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7276 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7277 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7278 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7279 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7280 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7281 7282 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7283 phba->cmf_active_mode = LPFC_CFG_OFF; 7284 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7285 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7286 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7287 7288 if (phba->sli_rev != LPFC_SLI_REV4) { 7289 /* NVME only supported on SLI4 */ 7290 phba->nvmet_support = 0; 7291 phba->cfg_nvmet_mrq = 0; 7292 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7293 phba->cfg_enable_bbcr = 0; 7294 phba->cfg_xri_rebalancing = 0; 7295 } else { 7296 /* We MUST have FCP support */ 7297 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7298 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7299 } 7300 7301 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7302 7303 phba->cfg_enable_pbde = 0; 7304 7305 /* A value of 0 means use the number of CPUs found in the system */ 7306 if (phba->cfg_hdw_queue == 0) 7307 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7308 if (phba->cfg_irq_chann == 0) 7309 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7310 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7311 phba->sli_rev == LPFC_SLI_REV4) 7312 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7313 7314 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7315 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7316 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7317 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7318 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7319 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7320 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7321 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7322 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7323 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7324 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7325 7326 return; 7327 } 7328 7329 /** 7330 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7331 * dependencies between protocols and roles. 7332 * @phba: lpfc_hba pointer. 7333 **/ 7334 void 7335 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7336 { 7337 int logit = 0; 7338 7339 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7340 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7341 logit = 1; 7342 } 7343 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7344 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7345 logit = 1; 7346 } 7347 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7348 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7349 logit = 1; 7350 } 7351 if (logit) 7352 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7353 "2006 Reducing Queues - CPU limitation: " 7354 "IRQ %d HDWQ %d\n", 7355 phba->cfg_irq_chann, 7356 phba->cfg_hdw_queue); 7357 7358 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7359 phba->nvmet_support) { 7360 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7361 7362 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7363 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7364 "NVME Target PRLI ACC enable_fb ", 7365 phba->cfg_nvme_enable_fb, 7366 phba->cfg_nvmet_fb_size, 7367 LPFC_NVMET_FB_SZ_MAX); 7368 7369 if (phba->cfg_nvme_enable_fb == 0) 7370 phba->cfg_nvmet_fb_size = 0; 7371 else { 7372 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7373 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7374 } 7375 7376 if (!phba->cfg_nvmet_mrq) 7377 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7378 7379 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7380 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7381 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7382 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7383 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7384 phba->cfg_nvmet_mrq); 7385 } 7386 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7387 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7388 7389 } else { 7390 /* Not NVME Target mode. Turn off Target parameters. */ 7391 phba->nvmet_support = 0; 7392 phba->cfg_nvmet_mrq = 0; 7393 phba->cfg_nvmet_fb_size = 0; 7394 } 7395 } 7396 7397 /** 7398 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7399 * @vport: lpfc_vport pointer. 7400 **/ 7401 void 7402 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7403 { 7404 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7405 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7406 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7407 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7408 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7409 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7410 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7411 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7412 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7413 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7414 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7415 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7416 lpfc_max_luns_init(vport, lpfc_max_luns); 7417 lpfc_scan_down_init(vport, lpfc_scan_down); 7418 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7419 return; 7420 } 7421