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