1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_sli.h" 43 #include "lpfc_sli4.h" 44 #include "lpfc_nl.h" 45 #include "lpfc_disc.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_version.h" 51 #include "lpfc_compat.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_attr.h" 55 56 #define LPFC_DEF_DEVLOSS_TMO 30 57 #define LPFC_MIN_DEVLOSS_TMO 1 58 #define LPFC_MAX_DEVLOSS_TMO 255 59 60 #define LPFC_MAX_INFO_TMP_LEN 100 61 #define LPFC_INFO_MORE_STR "\nCould be more info...\n" 62 /* 63 * Write key size should be multiple of 4. If write key is changed 64 * make sure that library write key is also changed. 65 */ 66 #define LPFC_REG_WRITE_KEY_SIZE 4 67 #define LPFC_REG_WRITE_KEY "EMLX" 68 69 const char *const trunk_errmsg[] = { /* map errcode */ 70 "", /* There is no such error code at index 0*/ 71 "link negotiated speed does not match existing" 72 " trunk - link was \"low\" speed", 73 "link negotiated speed does not match" 74 " existing trunk - link was \"middle\" speed", 75 "link negotiated speed does not match existing" 76 " trunk - link was \"high\" speed", 77 "Attached to non-trunking port - F_Port", 78 "Attached to non-trunking port - N_Port", 79 "FLOGI response timeout", 80 "non-FLOGI frame received", 81 "Invalid FLOGI response", 82 "Trunking initialization protocol", 83 "Trunk peer device mismatch", 84 }; 85 86 /** 87 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 88 * @incr: integer to convert. 89 * @hdw: ascii string holding converted integer plus a string terminator. 90 * 91 * Description: 92 * JEDEC Joint Electron Device Engineering Council. 93 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 94 * character string. The string is then terminated with a NULL in byte 9. 95 * Hex 0-9 becomes ascii '0' to '9'. 96 * Hex a-f becomes ascii '=' to 'B' capital B. 97 * 98 * Notes: 99 * Coded for 32 bit integers only. 100 **/ 101 static void 102 lpfc_jedec_to_ascii(int incr, char hdw[]) 103 { 104 int i, j; 105 for (i = 0; i < 8; i++) { 106 j = (incr & 0xf); 107 if (j <= 9) 108 hdw[7 - i] = 0x30 + j; 109 else 110 hdw[7 - i] = 0x61 + j - 10; 111 incr = (incr >> 4); 112 } 113 hdw[8] = 0; 114 return; 115 } 116 117 static ssize_t 118 lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr, 119 char *buf) 120 { 121 struct Scsi_Host *shost = class_to_shost(dev); 122 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 123 struct lpfc_hba *phba = vport->phba; 124 struct lpfc_cgn_info *cp = NULL; 125 struct lpfc_cgn_stat *cgs; 126 int len = 0; 127 int cpu; 128 u64 rcv, total; 129 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 130 131 if (phba->cgn_i) 132 cp = (struct lpfc_cgn_info *)phba->cgn_i->virt; 133 134 scnprintf(tmp, sizeof(tmp), 135 "Congestion Mgmt Info: E2Eattr %d Ver %d " 136 "CMF %d cnt %d\n", 137 phba->sli4_hba.pc_sli4_params.mi_ver, 138 cp ? cp->cgn_info_version : 0, 139 phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt); 140 141 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 142 goto buffer_done; 143 144 if (!phba->sli4_hba.pc_sli4_params.cmf) 145 goto buffer_done; 146 147 switch (phba->cgn_init_reg_signal) { 148 case EDC_CG_SIG_WARN_ONLY: 149 scnprintf(tmp, sizeof(tmp), 150 "Register: Init: Signal:WARN "); 151 break; 152 case EDC_CG_SIG_WARN_ALARM: 153 scnprintf(tmp, sizeof(tmp), 154 "Register: Init: Signal:WARN|ALARM "); 155 break; 156 default: 157 scnprintf(tmp, sizeof(tmp), 158 "Register: Init: Signal:NONE "); 159 break; 160 } 161 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 162 goto buffer_done; 163 164 switch (phba->cgn_init_reg_fpin) { 165 case LPFC_CGN_FPIN_WARN: 166 scnprintf(tmp, sizeof(tmp), 167 "FPIN:WARN\n"); 168 break; 169 case LPFC_CGN_FPIN_ALARM: 170 scnprintf(tmp, sizeof(tmp), 171 "FPIN:ALARM\n"); 172 break; 173 case LPFC_CGN_FPIN_BOTH: 174 scnprintf(tmp, sizeof(tmp), 175 "FPIN:WARN|ALARM\n"); 176 break; 177 default: 178 scnprintf(tmp, sizeof(tmp), 179 "FPIN:NONE\n"); 180 break; 181 } 182 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 183 goto buffer_done; 184 185 switch (phba->cgn_reg_signal) { 186 case EDC_CG_SIG_WARN_ONLY: 187 scnprintf(tmp, sizeof(tmp), 188 " Current: Signal:WARN "); 189 break; 190 case EDC_CG_SIG_WARN_ALARM: 191 scnprintf(tmp, sizeof(tmp), 192 " Current: Signal:WARN|ALARM "); 193 break; 194 default: 195 scnprintf(tmp, sizeof(tmp), 196 " Current: Signal:NONE "); 197 break; 198 } 199 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 200 goto buffer_done; 201 202 switch (phba->cgn_reg_fpin) { 203 case LPFC_CGN_FPIN_WARN: 204 scnprintf(tmp, sizeof(tmp), 205 "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt); 206 break; 207 case LPFC_CGN_FPIN_ALARM: 208 scnprintf(tmp, sizeof(tmp), 209 "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); 210 break; 211 case LPFC_CGN_FPIN_BOTH: 212 scnprintf(tmp, sizeof(tmp), 213 "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); 214 break; 215 default: 216 scnprintf(tmp, sizeof(tmp), 217 "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt); 218 break; 219 } 220 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 221 goto buffer_done; 222 223 if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) { 224 switch (phba->cmf_active_mode) { 225 case LPFC_CFG_OFF: 226 scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n"); 227 break; 228 case LPFC_CFG_MANAGED: 229 scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n"); 230 break; 231 case LPFC_CFG_MONITOR: 232 scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n"); 233 break; 234 default: 235 scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n"); 236 } 237 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 238 goto buffer_done; 239 } 240 241 switch (phba->cgn_p.cgn_param_mode) { 242 case LPFC_CFG_OFF: 243 scnprintf(tmp, sizeof(tmp), "Config: Mode:Off "); 244 break; 245 case LPFC_CFG_MANAGED: 246 scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed "); 247 break; 248 case LPFC_CFG_MONITOR: 249 scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor "); 250 break; 251 default: 252 scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown "); 253 } 254 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 255 goto buffer_done; 256 257 total = 0; 258 rcv = 0; 259 for_each_present_cpu(cpu) { 260 cgs = per_cpu_ptr(phba->cmf_stat, cpu); 261 total += atomic64_read(&cgs->total_bytes); 262 rcv += atomic64_read(&cgs->rcv_bytes); 263 } 264 265 scnprintf(tmp, sizeof(tmp), 266 "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n", 267 atomic_read(&phba->cmf_busy), 268 phba->cmf_active_info, rcv, total); 269 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 270 goto buffer_done; 271 272 scnprintf(tmp, sizeof(tmp), 273 "Port_speed:%d Link_byte_cnt:%ld " 274 "Max_byte_per_interval:%ld\n", 275 lpfc_sli_port_speed_get(phba), 276 (unsigned long)phba->cmf_link_byte_count, 277 (unsigned long)phba->cmf_max_bytes_per_interval); 278 strlcat(buf, tmp, PAGE_SIZE); 279 280 buffer_done: 281 len = strnlen(buf, PAGE_SIZE); 282 283 if (unlikely(len >= (PAGE_SIZE - 1))) { 284 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT, 285 "6312 Catching potential buffer " 286 "overflow > PAGE_SIZE = %lu bytes\n", 287 PAGE_SIZE); 288 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 289 LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); 290 } 291 return len; 292 } 293 294 /** 295 * lpfc_drvr_version_show - Return the Emulex driver string with version number 296 * @dev: class unused variable. 297 * @attr: device attribute, not used. 298 * @buf: on return contains the module description text. 299 * 300 * Returns: size of formatted string. 301 **/ 302 static ssize_t 303 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 304 char *buf) 305 { 306 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 307 } 308 309 /** 310 * lpfc_enable_fip_show - Return the fip mode of the HBA 311 * @dev: class unused variable. 312 * @attr: device attribute, not used. 313 * @buf: on return contains the module description text. 314 * 315 * Returns: size of formatted string. 316 **/ 317 static ssize_t 318 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 319 char *buf) 320 { 321 struct Scsi_Host *shost = class_to_shost(dev); 322 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 323 struct lpfc_hba *phba = vport->phba; 324 325 if (phba->hba_flag & HBA_FIP_SUPPORT) 326 return scnprintf(buf, PAGE_SIZE, "1\n"); 327 else 328 return scnprintf(buf, PAGE_SIZE, "0\n"); 329 } 330 331 static ssize_t 332 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 333 char *buf) 334 { 335 struct Scsi_Host *shost = class_to_shost(dev); 336 struct lpfc_vport *vport = shost_priv(shost); 337 struct lpfc_hba *phba = vport->phba; 338 struct lpfc_nvmet_tgtport *tgtp; 339 struct nvme_fc_local_port *localport; 340 struct lpfc_nvme_lport *lport; 341 struct lpfc_nvme_rport *rport; 342 struct lpfc_nodelist *ndlp; 343 struct nvme_fc_remote_port *nrport; 344 struct lpfc_fc4_ctrl_stat *cstat; 345 uint64_t data1, data2, data3; 346 uint64_t totin, totout, tot; 347 char *statep; 348 int i; 349 int len = 0; 350 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 351 352 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 353 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 354 return len; 355 } 356 if (phba->nvmet_support) { 357 if (!phba->targetport) { 358 len = scnprintf(buf, PAGE_SIZE, 359 "NVME Target: x%llx is not allocated\n", 360 wwn_to_u64(vport->fc_portname.u.wwn)); 361 return len; 362 } 363 /* Port state is only one of two values for now. */ 364 if (phba->targetport->port_id) 365 statep = "REGISTERED"; 366 else 367 statep = "INIT"; 368 scnprintf(tmp, sizeof(tmp), 369 "NVME Target Enabled State %s\n", 370 statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 scnprintf(tmp, sizeof(tmp), 375 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 376 "NVME Target: lpfc", 377 phba->brd_no, 378 wwn_to_u64(vport->fc_portname.u.wwn), 379 wwn_to_u64(vport->fc_nodename.u.wwn), 380 phba->targetport->port_id); 381 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 382 goto buffer_done; 383 384 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 385 >= PAGE_SIZE) 386 goto buffer_done; 387 388 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 389 scnprintf(tmp, sizeof(tmp), 390 "LS: Rcv %08x Drop %08x Abort %08x\n", 391 atomic_read(&tgtp->rcv_ls_req_in), 392 atomic_read(&tgtp->rcv_ls_req_drop), 393 atomic_read(&tgtp->xmt_ls_abort)); 394 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 395 goto buffer_done; 396 397 if (atomic_read(&tgtp->rcv_ls_req_in) != 398 atomic_read(&tgtp->rcv_ls_req_out)) { 399 scnprintf(tmp, sizeof(tmp), 400 "Rcv LS: in %08x != out %08x\n", 401 atomic_read(&tgtp->rcv_ls_req_in), 402 atomic_read(&tgtp->rcv_ls_req_out)); 403 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 404 goto buffer_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), 408 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 409 atomic_read(&tgtp->xmt_ls_rsp), 410 atomic_read(&tgtp->xmt_ls_drop), 411 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto buffer_done; 414 415 scnprintf(tmp, sizeof(tmp), 416 "LS: RSP Abort %08x xb %08x Err %08x\n", 417 atomic_read(&tgtp->xmt_ls_rsp_aborted), 418 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 419 atomic_read(&tgtp->xmt_ls_rsp_error)); 420 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 421 goto buffer_done; 422 423 scnprintf(tmp, sizeof(tmp), 424 "FCP: Rcv %08x Defer %08x Release %08x " 425 "Drop %08x\n", 426 atomic_read(&tgtp->rcv_fcp_cmd_in), 427 atomic_read(&tgtp->rcv_fcp_cmd_defer), 428 atomic_read(&tgtp->xmt_fcp_release), 429 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 430 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 431 goto buffer_done; 432 433 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 434 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 435 scnprintf(tmp, sizeof(tmp), 436 "Rcv FCP: in %08x != out %08x\n", 437 atomic_read(&tgtp->rcv_fcp_cmd_in), 438 atomic_read(&tgtp->rcv_fcp_cmd_out)); 439 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 440 goto buffer_done; 441 } 442 443 scnprintf(tmp, sizeof(tmp), 444 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 445 "drop %08x\n", 446 atomic_read(&tgtp->xmt_fcp_read), 447 atomic_read(&tgtp->xmt_fcp_read_rsp), 448 atomic_read(&tgtp->xmt_fcp_write), 449 atomic_read(&tgtp->xmt_fcp_rsp), 450 atomic_read(&tgtp->xmt_fcp_drop)); 451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 452 goto buffer_done; 453 454 scnprintf(tmp, sizeof(tmp), 455 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 456 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 457 atomic_read(&tgtp->xmt_fcp_rsp_error), 458 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 459 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 460 goto buffer_done; 461 462 scnprintf(tmp, sizeof(tmp), 463 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 464 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 465 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 466 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 467 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 468 goto buffer_done; 469 470 scnprintf(tmp, sizeof(tmp), 471 "ABORT: Xmt %08x Cmpl %08x\n", 472 atomic_read(&tgtp->xmt_fcp_abort), 473 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 474 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 475 goto buffer_done; 476 477 scnprintf(tmp, sizeof(tmp), 478 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 479 atomic_read(&tgtp->xmt_abort_sol), 480 atomic_read(&tgtp->xmt_abort_unsol), 481 atomic_read(&tgtp->xmt_abort_rsp), 482 atomic_read(&tgtp->xmt_abort_rsp_error)); 483 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 484 goto buffer_done; 485 486 scnprintf(tmp, sizeof(tmp), 487 "DELAY: ctx %08x fod %08x wqfull %08x\n", 488 atomic_read(&tgtp->defer_ctx), 489 atomic_read(&tgtp->defer_fod), 490 atomic_read(&tgtp->defer_wqfull)); 491 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 492 goto buffer_done; 493 494 /* Calculate outstanding IOs */ 495 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 496 tot += atomic_read(&tgtp->xmt_fcp_release); 497 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 498 499 scnprintf(tmp, sizeof(tmp), 500 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 501 "CTX Outstanding %08llx\n\n", 502 phba->sli4_hba.nvmet_xri_cnt, 503 phba->sli4_hba.nvmet_io_wait_cnt, 504 phba->sli4_hba.nvmet_io_wait_total, 505 tot); 506 strlcat(buf, tmp, PAGE_SIZE); 507 goto buffer_done; 508 } 509 510 localport = vport->localport; 511 if (!localport) { 512 len = scnprintf(buf, PAGE_SIZE, 513 "NVME Initiator x%llx is not allocated\n", 514 wwn_to_u64(vport->fc_portname.u.wwn)); 515 return len; 516 } 517 lport = (struct lpfc_nvme_lport *)localport->private; 518 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 519 goto buffer_done; 520 521 scnprintf(tmp, sizeof(tmp), 522 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 523 phba->brd_no, 524 phba->sli4_hba.max_cfg_param.max_xri, 525 phba->sli4_hba.io_xri_max, 526 lpfc_sli4_get_els_iocb_cnt(phba)); 527 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 528 goto buffer_done; 529 530 /* Port state is only one of two values for now. */ 531 if (localport->port_id) 532 statep = "ONLINE"; 533 else 534 statep = "UNKNOWN "; 535 536 scnprintf(tmp, sizeof(tmp), 537 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 538 "NVME LPORT lpfc", 539 phba->brd_no, 540 wwn_to_u64(vport->fc_portname.u.wwn), 541 wwn_to_u64(vport->fc_nodename.u.wwn), 542 localport->port_id, statep); 543 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 544 goto buffer_done; 545 546 spin_lock_irq(shost->host_lock); 547 548 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 549 nrport = NULL; 550 spin_lock(&ndlp->lock); 551 rport = lpfc_ndlp_get_nrport(ndlp); 552 if (rport) 553 nrport = rport->remoteport; 554 spin_unlock(&ndlp->lock); 555 if (!nrport) 556 continue; 557 558 /* Port state is only one of two values for now. */ 559 switch (nrport->port_state) { 560 case FC_OBJSTATE_ONLINE: 561 statep = "ONLINE"; 562 break; 563 case FC_OBJSTATE_UNKNOWN: 564 statep = "UNKNOWN "; 565 break; 566 default: 567 statep = "UNSUPPORTED"; 568 break; 569 } 570 571 /* Tab in to show lport ownership. */ 572 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 573 goto unlock_buf_done; 574 if (phba->brd_no >= 10) { 575 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 576 goto unlock_buf_done; 577 } 578 579 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 580 nrport->port_name); 581 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 582 goto unlock_buf_done; 583 584 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 585 nrport->node_name); 586 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 587 goto unlock_buf_done; 588 589 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 590 nrport->port_id); 591 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 592 goto unlock_buf_done; 593 594 /* An NVME rport can have multiple roles. */ 595 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 596 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 597 goto unlock_buf_done; 598 } 599 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 600 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 601 goto unlock_buf_done; 602 } 603 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 604 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 605 goto unlock_buf_done; 606 } 607 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 608 FC_PORT_ROLE_NVME_TARGET | 609 FC_PORT_ROLE_NVME_DISCOVERY)) { 610 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 611 nrport->port_role); 612 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 613 goto unlock_buf_done; 614 } 615 616 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 617 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 618 goto unlock_buf_done; 619 } 620 spin_unlock_irq(shost->host_lock); 621 622 if (!lport) 623 goto buffer_done; 624 625 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 626 goto buffer_done; 627 628 scnprintf(tmp, sizeof(tmp), 629 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 630 atomic_read(&lport->fc4NvmeLsRequests), 631 atomic_read(&lport->fc4NvmeLsCmpls), 632 atomic_read(&lport->xmt_ls_abort)); 633 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 634 goto buffer_done; 635 636 scnprintf(tmp, sizeof(tmp), 637 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 638 atomic_read(&lport->xmt_ls_err), 639 atomic_read(&lport->cmpl_ls_xb), 640 atomic_read(&lport->cmpl_ls_err)); 641 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 642 goto buffer_done; 643 644 totin = 0; 645 totout = 0; 646 for (i = 0; i < phba->cfg_hdw_queue; i++) { 647 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 648 tot = cstat->io_cmpls; 649 totin += tot; 650 data1 = cstat->input_requests; 651 data2 = cstat->output_requests; 652 data3 = cstat->control_requests; 653 totout += (data1 + data2 + data3); 654 } 655 scnprintf(tmp, sizeof(tmp), 656 "Total FCP Cmpl %016llx Issue %016llx " 657 "OutIO %016llx\n", 658 totin, totout, totout - totin); 659 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 660 goto buffer_done; 661 662 scnprintf(tmp, sizeof(tmp), 663 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 664 "wqerr %08x err %08x\n", 665 atomic_read(&lport->xmt_fcp_abort), 666 atomic_read(&lport->xmt_fcp_noxri), 667 atomic_read(&lport->xmt_fcp_bad_ndlp), 668 atomic_read(&lport->xmt_fcp_qdepth), 669 atomic_read(&lport->xmt_fcp_wqerr), 670 atomic_read(&lport->xmt_fcp_err)); 671 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 672 goto buffer_done; 673 674 scnprintf(tmp, sizeof(tmp), 675 "FCP CMPL: xb %08x Err %08x\n", 676 atomic_read(&lport->cmpl_fcp_xb), 677 atomic_read(&lport->cmpl_fcp_err)); 678 strlcat(buf, tmp, PAGE_SIZE); 679 680 /* host_lock is already unlocked. */ 681 goto buffer_done; 682 683 unlock_buf_done: 684 spin_unlock_irq(shost->host_lock); 685 686 buffer_done: 687 len = strnlen(buf, PAGE_SIZE); 688 689 if (unlikely(len >= (PAGE_SIZE - 1))) { 690 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 691 "6314 Catching potential buffer " 692 "overflow > PAGE_SIZE = %lu bytes\n", 693 PAGE_SIZE); 694 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 695 LPFC_INFO_MORE_STR, 696 sizeof(LPFC_INFO_MORE_STR) + 1); 697 } 698 699 return len; 700 } 701 702 static ssize_t 703 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 704 char *buf) 705 { 706 struct Scsi_Host *shost = class_to_shost(dev); 707 struct lpfc_vport *vport = shost_priv(shost); 708 struct lpfc_hba *phba = vport->phba; 709 int len; 710 struct lpfc_fc4_ctrl_stat *cstat; 711 u64 data1, data2, data3; 712 u64 tot, totin, totout; 713 int i; 714 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 715 716 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 717 (phba->sli_rev != LPFC_SLI_REV4)) 718 return 0; 719 720 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 721 722 totin = 0; 723 totout = 0; 724 for (i = 0; i < phba->cfg_hdw_queue; i++) { 725 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 726 tot = cstat->io_cmpls; 727 totin += tot; 728 data1 = cstat->input_requests; 729 data2 = cstat->output_requests; 730 data3 = cstat->control_requests; 731 totout += (data1 + data2 + data3); 732 733 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 734 "IO %016llx ", i, data1, data2, data3); 735 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 736 goto buffer_done; 737 738 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 739 tot, ((data1 + data2 + data3) - tot)); 740 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 741 goto buffer_done; 742 } 743 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 744 "OutIO %016llx\n", totin, totout, totout - totin); 745 strlcat(buf, tmp, PAGE_SIZE); 746 747 buffer_done: 748 len = strnlen(buf, PAGE_SIZE); 749 750 return len; 751 } 752 753 static ssize_t 754 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 755 char *buf) 756 { 757 struct Scsi_Host *shost = class_to_shost(dev); 758 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 759 struct lpfc_hba *phba = vport->phba; 760 761 if (phba->cfg_enable_bg) { 762 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 763 return scnprintf(buf, PAGE_SIZE, 764 "BlockGuard Enabled\n"); 765 else 766 return scnprintf(buf, PAGE_SIZE, 767 "BlockGuard Not Supported\n"); 768 } else 769 return scnprintf(buf, PAGE_SIZE, 770 "BlockGuard Disabled\n"); 771 } 772 773 static ssize_t 774 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 775 char *buf) 776 { 777 struct Scsi_Host *shost = class_to_shost(dev); 778 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 779 struct lpfc_hba *phba = vport->phba; 780 781 return scnprintf(buf, PAGE_SIZE, "%llu\n", 782 (unsigned long long)phba->bg_guard_err_cnt); 783 } 784 785 static ssize_t 786 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 787 char *buf) 788 { 789 struct Scsi_Host *shost = class_to_shost(dev); 790 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 791 struct lpfc_hba *phba = vport->phba; 792 793 return scnprintf(buf, PAGE_SIZE, "%llu\n", 794 (unsigned long long)phba->bg_apptag_err_cnt); 795 } 796 797 static ssize_t 798 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 799 char *buf) 800 { 801 struct Scsi_Host *shost = class_to_shost(dev); 802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 803 struct lpfc_hba *phba = vport->phba; 804 805 return scnprintf(buf, PAGE_SIZE, "%llu\n", 806 (unsigned long long)phba->bg_reftag_err_cnt); 807 } 808 809 /** 810 * lpfc_info_show - Return some pci info about the host in ascii 811 * @dev: class converted to a Scsi_host structure. 812 * @attr: device attribute, not used. 813 * @buf: on return contains the formatted text from lpfc_info(). 814 * 815 * Returns: size of formatted string. 816 **/ 817 static ssize_t 818 lpfc_info_show(struct device *dev, struct device_attribute *attr, 819 char *buf) 820 { 821 struct Scsi_Host *host = class_to_shost(dev); 822 823 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 824 } 825 826 /** 827 * lpfc_serialnum_show - Return the hba serial number in ascii 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the formatted text serial number. 831 * 832 * Returns: size of formatted string. 833 **/ 834 static ssize_t 835 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 836 char *buf) 837 { 838 struct Scsi_Host *shost = class_to_shost(dev); 839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 840 struct lpfc_hba *phba = vport->phba; 841 842 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 843 } 844 845 /** 846 * lpfc_temp_sensor_show - Return the temperature sensor level 847 * @dev: class converted to a Scsi_host structure. 848 * @attr: device attribute, not used. 849 * @buf: on return contains the formatted support level. 850 * 851 * Description: 852 * Returns a number indicating the temperature sensor level currently 853 * supported, zero or one in ascii. 854 * 855 * Returns: size of formatted string. 856 **/ 857 static ssize_t 858 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 859 char *buf) 860 { 861 struct Scsi_Host *shost = class_to_shost(dev); 862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 863 struct lpfc_hba *phba = vport->phba; 864 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 865 } 866 867 /** 868 * lpfc_modeldesc_show - Return the model description of the hba 869 * @dev: class converted to a Scsi_host structure. 870 * @attr: device attribute, not used. 871 * @buf: on return contains the scsi vpd model description. 872 * 873 * Returns: size of formatted string. 874 **/ 875 static ssize_t 876 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878 { 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 883 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 884 } 885 886 /** 887 * lpfc_modelname_show - Return the model name of the hba 888 * @dev: class converted to a Scsi_host structure. 889 * @attr: device attribute, not used. 890 * @buf: on return contains the scsi vpd model name. 891 * 892 * Returns: size of formatted string. 893 **/ 894 static ssize_t 895 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 896 char *buf) 897 { 898 struct Scsi_Host *shost = class_to_shost(dev); 899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 900 struct lpfc_hba *phba = vport->phba; 901 902 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 903 } 904 905 /** 906 * lpfc_programtype_show - Return the program type of the hba 907 * @dev: class converted to a Scsi_host structure. 908 * @attr: device attribute, not used. 909 * @buf: on return contains the scsi vpd program type. 910 * 911 * Returns: size of formatted string. 912 **/ 913 static ssize_t 914 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 915 char *buf) 916 { 917 struct Scsi_Host *shost = class_to_shost(dev); 918 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 919 struct lpfc_hba *phba = vport->phba; 920 921 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 922 } 923 924 /** 925 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 926 * @dev: class converted to a Scsi_host structure. 927 * @attr: device attribute, not used. 928 * @buf: on return contains the Menlo Maintenance sli flag. 929 * 930 * Returns: size of formatted string. 931 **/ 932 static ssize_t 933 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 934 { 935 struct Scsi_Host *shost = class_to_shost(dev); 936 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 937 struct lpfc_hba *phba = vport->phba; 938 939 return scnprintf(buf, PAGE_SIZE, "%d\n", 940 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 941 } 942 943 /** 944 * lpfc_vportnum_show - Return the port number in ascii of the hba 945 * @dev: class converted to a Scsi_host structure. 946 * @attr: device attribute, not used. 947 * @buf: on return contains scsi vpd program type. 948 * 949 * Returns: size of formatted string. 950 **/ 951 static ssize_t 952 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 953 char *buf) 954 { 955 struct Scsi_Host *shost = class_to_shost(dev); 956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 957 struct lpfc_hba *phba = vport->phba; 958 959 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 960 } 961 962 /** 963 * lpfc_fwrev_show - Return the firmware rev running in the hba 964 * @dev: class converted to a Scsi_host structure. 965 * @attr: device attribute, not used. 966 * @buf: on return contains the scsi vpd program type. 967 * 968 * Returns: size of formatted string. 969 **/ 970 static ssize_t 971 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 972 char *buf) 973 { 974 struct Scsi_Host *shost = class_to_shost(dev); 975 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 976 struct lpfc_hba *phba = vport->phba; 977 uint32_t if_type; 978 uint8_t sli_family; 979 char fwrev[FW_REV_STR_SIZE]; 980 int len; 981 982 lpfc_decode_firmware_rev(phba, fwrev, 1); 983 if_type = phba->sli4_hba.pc_sli4_params.if_type; 984 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 985 986 if (phba->sli_rev < LPFC_SLI_REV4) 987 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 988 fwrev, phba->sli_rev); 989 else 990 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 991 fwrev, phba->sli_rev, if_type, sli_family); 992 993 return len; 994 } 995 996 /** 997 * lpfc_hdw_show - Return the jedec information about the hba 998 * @dev: class converted to a Scsi_host structure. 999 * @attr: device attribute, not used. 1000 * @buf: on return contains the scsi vpd program type. 1001 * 1002 * Returns: size of formatted string. 1003 **/ 1004 static ssize_t 1005 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 1006 { 1007 char hdw[9]; 1008 struct Scsi_Host *shost = class_to_shost(dev); 1009 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1010 struct lpfc_hba *phba = vport->phba; 1011 lpfc_vpd_t *vp = &phba->vpd; 1012 1013 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 1014 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 1015 vp->rev.smRev, vp->rev.smFwRev); 1016 } 1017 1018 /** 1019 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 1020 * @dev: class converted to a Scsi_host structure. 1021 * @attr: device attribute, not used. 1022 * @buf: on return contains the ROM and FCode ascii strings. 1023 * 1024 * Returns: size of formatted string. 1025 **/ 1026 static ssize_t 1027 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 1028 char *buf) 1029 { 1030 struct Scsi_Host *shost = class_to_shost(dev); 1031 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1032 struct lpfc_hba *phba = vport->phba; 1033 char fwrev[FW_REV_STR_SIZE]; 1034 1035 if (phba->sli_rev < LPFC_SLI_REV4) 1036 return scnprintf(buf, PAGE_SIZE, "%s\n", 1037 phba->OptionROMVersion); 1038 1039 lpfc_decode_firmware_rev(phba, fwrev, 1); 1040 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 1041 } 1042 1043 /** 1044 * lpfc_link_state_show - Return the link state of the port 1045 * @dev: class converted to a Scsi_host structure. 1046 * @attr: device attribute, not used. 1047 * @buf: on return contains text describing the state of the link. 1048 * 1049 * Notes: 1050 * The switch statement has no default so zero will be returned. 1051 * 1052 * Returns: size of formatted string. 1053 **/ 1054 static ssize_t 1055 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 1056 char *buf) 1057 { 1058 struct Scsi_Host *shost = class_to_shost(dev); 1059 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1060 struct lpfc_hba *phba = vport->phba; 1061 int len = 0; 1062 1063 switch (phba->link_state) { 1064 case LPFC_LINK_UNKNOWN: 1065 case LPFC_WARM_START: 1066 case LPFC_INIT_START: 1067 case LPFC_INIT_MBX_CMDS: 1068 case LPFC_LINK_DOWN: 1069 case LPFC_HBA_ERROR: 1070 if (phba->hba_flag & LINK_DISABLED) 1071 len += scnprintf(buf + len, PAGE_SIZE-len, 1072 "Link Down - User disabled\n"); 1073 else 1074 len += scnprintf(buf + len, PAGE_SIZE-len, 1075 "Link Down\n"); 1076 break; 1077 case LPFC_LINK_UP: 1078 case LPFC_CLEAR_LA: 1079 case LPFC_HBA_READY: 1080 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 1081 1082 switch (vport->port_state) { 1083 case LPFC_LOCAL_CFG_LINK: 1084 len += scnprintf(buf + len, PAGE_SIZE-len, 1085 "Configuring Link\n"); 1086 break; 1087 case LPFC_FDISC: 1088 case LPFC_FLOGI: 1089 case LPFC_FABRIC_CFG_LINK: 1090 case LPFC_NS_REG: 1091 case LPFC_NS_QRY: 1092 case LPFC_BUILD_DISC_LIST: 1093 case LPFC_DISC_AUTH: 1094 len += scnprintf(buf + len, PAGE_SIZE - len, 1095 "Discovery\n"); 1096 break; 1097 case LPFC_VPORT_READY: 1098 len += scnprintf(buf + len, PAGE_SIZE - len, 1099 "Ready\n"); 1100 break; 1101 1102 case LPFC_VPORT_FAILED: 1103 len += scnprintf(buf + len, PAGE_SIZE - len, 1104 "Failed\n"); 1105 break; 1106 1107 case LPFC_VPORT_UNKNOWN: 1108 len += scnprintf(buf + len, PAGE_SIZE - len, 1109 "Unknown\n"); 1110 break; 1111 } 1112 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 1113 len += scnprintf(buf + len, PAGE_SIZE-len, 1114 " Menlo Maint Mode\n"); 1115 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1116 if (vport->fc_flag & FC_PUBLIC_LOOP) 1117 len += scnprintf(buf + len, PAGE_SIZE-len, 1118 " Public Loop\n"); 1119 else 1120 len += scnprintf(buf + len, PAGE_SIZE-len, 1121 " Private Loop\n"); 1122 } else { 1123 if (vport->fc_flag & FC_FABRIC) { 1124 if (phba->sli_rev == LPFC_SLI_REV4 && 1125 vport->port_type == LPFC_PHYSICAL_PORT && 1126 phba->sli4_hba.fawwpn_flag & 1127 LPFC_FAWWPN_FABRIC) 1128 len += scnprintf(buf + len, 1129 PAGE_SIZE - len, 1130 " Fabric FA-PWWN\n"); 1131 else 1132 len += scnprintf(buf + len, 1133 PAGE_SIZE - len, 1134 " Fabric\n"); 1135 } else { 1136 len += scnprintf(buf + len, PAGE_SIZE-len, 1137 " Point-2-Point\n"); 1138 } 1139 } 1140 } 1141 1142 if ((phba->sli_rev == LPFC_SLI_REV4) && 1143 ((bf_get(lpfc_sli_intf_if_type, 1144 &phba->sli4_hba.sli_intf) == 1145 LPFC_SLI_INTF_IF_TYPE_6))) { 1146 struct lpfc_trunk_link link = phba->trunk_link; 1147 1148 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 1149 len += scnprintf(buf + len, PAGE_SIZE - len, 1150 "Trunk port 0: Link %s %s\n", 1151 (link.link0.state == LPFC_LINK_UP) ? 1152 "Up" : "Down. ", 1153 trunk_errmsg[link.link0.fault]); 1154 1155 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 1156 len += scnprintf(buf + len, PAGE_SIZE - len, 1157 "Trunk port 1: Link %s %s\n", 1158 (link.link1.state == LPFC_LINK_UP) ? 1159 "Up" : "Down. ", 1160 trunk_errmsg[link.link1.fault]); 1161 1162 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 1163 len += scnprintf(buf + len, PAGE_SIZE - len, 1164 "Trunk port 2: Link %s %s\n", 1165 (link.link2.state == LPFC_LINK_UP) ? 1166 "Up" : "Down. ", 1167 trunk_errmsg[link.link2.fault]); 1168 1169 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 1170 len += scnprintf(buf + len, PAGE_SIZE - len, 1171 "Trunk port 3: Link %s %s\n", 1172 (link.link3.state == LPFC_LINK_UP) ? 1173 "Up" : "Down. ", 1174 trunk_errmsg[link.link3.fault]); 1175 1176 } 1177 1178 return len; 1179 } 1180 1181 /** 1182 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1183 * @dev: class unused variable. 1184 * @attr: device attribute, not used. 1185 * @buf: on return contains the module description text. 1186 * 1187 * Returns: size of formatted string. 1188 **/ 1189 static ssize_t 1190 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1191 char *buf) 1192 { 1193 struct Scsi_Host *shost = class_to_shost(dev); 1194 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1195 struct lpfc_hba *phba = vport->phba; 1196 1197 if (phba->sli_rev < LPFC_SLI_REV4) 1198 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1199 1200 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1201 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1202 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1203 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1204 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1205 } 1206 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1207 } 1208 1209 /** 1210 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1211 * (OAS) is supported. 1212 * @dev: class unused variable. 1213 * @attr: device attribute, not used. 1214 * @buf: on return contains the module description text. 1215 * 1216 * Returns: size of formatted string. 1217 **/ 1218 static ssize_t 1219 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1220 char *buf) 1221 { 1222 struct Scsi_Host *shost = class_to_shost(dev); 1223 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1224 struct lpfc_hba *phba = vport->phba; 1225 1226 return scnprintf(buf, PAGE_SIZE, "%d\n", 1227 phba->sli4_hba.pc_sli4_params.oas_supported); 1228 } 1229 1230 /** 1231 * lpfc_link_state_store - Transition the link_state on an HBA port 1232 * @dev: class device that is converted into a Scsi_host. 1233 * @attr: device attribute, not used. 1234 * @buf: one or more lpfc_polling_flags values. 1235 * @count: not used. 1236 * 1237 * Returns: 1238 * -EINVAL if the buffer is not "up" or "down" 1239 * return from link state change function if non-zero 1240 * length of the buf on success 1241 **/ 1242 static ssize_t 1243 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1244 const char *buf, size_t count) 1245 { 1246 struct Scsi_Host *shost = class_to_shost(dev); 1247 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1248 struct lpfc_hba *phba = vport->phba; 1249 1250 int status = -EINVAL; 1251 1252 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1253 (phba->link_state == LPFC_LINK_DOWN)) 1254 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1255 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1256 (phba->link_state >= LPFC_LINK_UP)) 1257 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1258 1259 if (status == 0) 1260 return strlen(buf); 1261 else 1262 return status; 1263 } 1264 1265 /** 1266 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1267 * @dev: class device that is converted into a Scsi_host. 1268 * @attr: device attribute, not used. 1269 * @buf: on return contains the sum of fc mapped and unmapped. 1270 * 1271 * Description: 1272 * Returns the ascii text number of the sum of the fc mapped and unmapped 1273 * vport counts. 1274 * 1275 * Returns: size of formatted string. 1276 **/ 1277 static ssize_t 1278 lpfc_num_discovered_ports_show(struct device *dev, 1279 struct device_attribute *attr, char *buf) 1280 { 1281 struct Scsi_Host *shost = class_to_shost(dev); 1282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1283 1284 return scnprintf(buf, PAGE_SIZE, "%d\n", 1285 vport->fc_map_cnt + vport->fc_unmap_cnt); 1286 } 1287 1288 /** 1289 * lpfc_issue_lip - Misnomer, name carried over from long ago 1290 * @shost: Scsi_Host pointer. 1291 * 1292 * Description: 1293 * Bring the link down gracefully then re-init the link. The firmware will 1294 * re-init the fiber channel interface as required. Does not issue a LIP. 1295 * 1296 * Returns: 1297 * -EPERM port offline or management commands are being blocked 1298 * -ENOMEM cannot allocate memory for the mailbox command 1299 * -EIO error sending the mailbox command 1300 * zero for success 1301 **/ 1302 static int 1303 lpfc_issue_lip(struct Scsi_Host *shost) 1304 { 1305 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1306 struct lpfc_hba *phba = vport->phba; 1307 LPFC_MBOXQ_t *pmboxq; 1308 int mbxstatus = MBXERR_ERROR; 1309 1310 /* 1311 * If the link is offline, disabled or BLOCK_MGMT_IO 1312 * it doesn't make any sense to allow issue_lip 1313 */ 1314 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1315 (phba->hba_flag & LINK_DISABLED) || 1316 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1317 return -EPERM; 1318 1319 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1320 1321 if (!pmboxq) 1322 return -ENOMEM; 1323 1324 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1325 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1326 pmboxq->u.mb.mbxOwner = OWN_HOST; 1327 1328 if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME)) 1329 vport->fc_flag &= ~FC_PT2PT_NO_NVME; 1330 1331 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1332 1333 if ((mbxstatus == MBX_SUCCESS) && 1334 (pmboxq->u.mb.mbxStatus == 0 || 1335 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1336 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1337 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1338 phba->cfg_link_speed); 1339 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1340 phba->fc_ratov * 2); 1341 if ((mbxstatus == MBX_SUCCESS) && 1342 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1343 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1344 "2859 SLI authentication is required " 1345 "for INIT_LINK but has not done yet\n"); 1346 } 1347 1348 lpfc_set_loopback_flag(phba); 1349 if (mbxstatus != MBX_TIMEOUT) 1350 mempool_free(pmboxq, phba->mbox_mem_pool); 1351 1352 if (mbxstatus == MBXERR_ERROR) 1353 return -EIO; 1354 1355 return 0; 1356 } 1357 1358 int 1359 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1360 { 1361 int cnt = 0; 1362 1363 spin_lock_irq(lock); 1364 while (!list_empty(q)) { 1365 spin_unlock_irq(lock); 1366 msleep(20); 1367 if (cnt++ > 250) { /* 5 secs */ 1368 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1369 "0466 Outstanding IO when " 1370 "bringing Adapter offline\n"); 1371 return 0; 1372 } 1373 spin_lock_irq(lock); 1374 } 1375 spin_unlock_irq(lock); 1376 return 1; 1377 } 1378 1379 /** 1380 * lpfc_do_offline - Issues a mailbox command to bring the link down 1381 * @phba: lpfc_hba pointer. 1382 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1383 * 1384 * Notes: 1385 * Assumes any error from lpfc_do_offline() will be negative. 1386 * Can wait up to 5 seconds for the port ring buffers count 1387 * to reach zero, prints a warning if it is not zero and continues. 1388 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1389 * 1390 * Returns: 1391 * -EIO error posting the event 1392 * zero for success 1393 **/ 1394 static int 1395 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1396 { 1397 struct completion online_compl; 1398 struct lpfc_queue *qp = NULL; 1399 struct lpfc_sli_ring *pring; 1400 struct lpfc_sli *psli; 1401 int status = 0; 1402 int i; 1403 int rc; 1404 1405 init_completion(&online_compl); 1406 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1407 LPFC_EVT_OFFLINE_PREP); 1408 if (rc == 0) 1409 return -ENOMEM; 1410 1411 wait_for_completion(&online_compl); 1412 1413 if (status != 0) 1414 return -EIO; 1415 1416 psli = &phba->sli; 1417 1418 /* 1419 * If freeing the queues have already started, don't access them. 1420 * Otherwise set FREE_WAIT to indicate that queues are being used 1421 * to hold the freeing process until we finish. 1422 */ 1423 spin_lock_irq(&phba->hbalock); 1424 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1425 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1426 } else { 1427 spin_unlock_irq(&phba->hbalock); 1428 goto skip_wait; 1429 } 1430 spin_unlock_irq(&phba->hbalock); 1431 1432 /* Wait a little for things to settle down, but not 1433 * long enough for dev loss timeout to expire. 1434 */ 1435 if (phba->sli_rev != LPFC_SLI_REV4) { 1436 for (i = 0; i < psli->num_rings; i++) { 1437 pring = &psli->sli3_ring[i]; 1438 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1439 &phba->hbalock)) 1440 goto out; 1441 } 1442 } else { 1443 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1444 pring = qp->pring; 1445 if (!pring) 1446 continue; 1447 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1448 &pring->ring_lock)) 1449 goto out; 1450 } 1451 } 1452 out: 1453 spin_lock_irq(&phba->hbalock); 1454 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1455 spin_unlock_irq(&phba->hbalock); 1456 1457 skip_wait: 1458 init_completion(&online_compl); 1459 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1460 if (rc == 0) 1461 return -ENOMEM; 1462 1463 wait_for_completion(&online_compl); 1464 1465 if (status != 0) 1466 return -EIO; 1467 1468 return 0; 1469 } 1470 1471 /** 1472 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1473 * @phba: lpfc_hba pointer. 1474 * 1475 * Description: 1476 * Issues a PCI secondary bus reset for the phba->pcidev. 1477 * 1478 * Notes: 1479 * First walks the bus_list to ensure only PCI devices with Emulex 1480 * vendor id, device ids that support hot reset, only one occurrence 1481 * of function 0, and all ports on the bus are in offline mode to ensure the 1482 * hot reset only affects one valid HBA. 1483 * 1484 * Returns: 1485 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1486 * -ENODEV, NULL ptr to pcidev 1487 * -EBADSLT, detected invalid device 1488 * -EBUSY, port is not in offline state 1489 * 0, successful 1490 */ 1491 static int 1492 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1493 { 1494 struct pci_dev *pdev = phba->pcidev; 1495 struct Scsi_Host *shost = NULL; 1496 struct lpfc_hba *phba_other = NULL; 1497 struct pci_dev *ptr = NULL; 1498 int res; 1499 1500 if (phba->cfg_enable_hba_reset != 2) 1501 return -ENOTSUPP; 1502 1503 if (!pdev) { 1504 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1505 return -ENODEV; 1506 } 1507 1508 res = lpfc_check_pci_resettable(phba); 1509 if (res) 1510 return res; 1511 1512 /* Walk the list of devices on the pci_dev's bus */ 1513 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1514 /* Check port is offline */ 1515 shost = pci_get_drvdata(ptr); 1516 if (shost) { 1517 phba_other = 1518 ((struct lpfc_vport *)shost->hostdata)->phba; 1519 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1520 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1521 "8349 WWPN = 0x%02x%02x%02x%02x" 1522 "%02x%02x%02x%02x is not " 1523 "offline!\n", 1524 phba_other->wwpn[0], 1525 phba_other->wwpn[1], 1526 phba_other->wwpn[2], 1527 phba_other->wwpn[3], 1528 phba_other->wwpn[4], 1529 phba_other->wwpn[5], 1530 phba_other->wwpn[6], 1531 phba_other->wwpn[7]); 1532 return -EBUSY; 1533 } 1534 } 1535 } 1536 1537 /* Issue PCI bus reset */ 1538 res = pci_reset_bus(pdev); 1539 if (res) { 1540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1541 "8350 PCI reset bus failed: %d\n", res); 1542 } 1543 1544 return res; 1545 } 1546 1547 /** 1548 * lpfc_selective_reset - Offline then onlines the port 1549 * @phba: lpfc_hba pointer. 1550 * 1551 * Description: 1552 * If the port is configured to allow a reset then the hba is brought 1553 * offline then online. 1554 * 1555 * Notes: 1556 * Assumes any error from lpfc_do_offline() will be negative. 1557 * Do not make this function static. 1558 * 1559 * Returns: 1560 * lpfc_do_offline() return code if not zero 1561 * -EIO reset not configured or error posting the event 1562 * zero for success 1563 **/ 1564 int 1565 lpfc_selective_reset(struct lpfc_hba *phba) 1566 { 1567 struct completion online_compl; 1568 int status = 0; 1569 int rc; 1570 1571 if (!phba->cfg_enable_hba_reset) 1572 return -EACCES; 1573 1574 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1575 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1576 1577 if (status != 0) 1578 return status; 1579 } 1580 1581 init_completion(&online_compl); 1582 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1583 LPFC_EVT_ONLINE); 1584 if (rc == 0) 1585 return -ENOMEM; 1586 1587 wait_for_completion(&online_compl); 1588 1589 if (status != 0) 1590 return -EIO; 1591 1592 return 0; 1593 } 1594 1595 /** 1596 * lpfc_issue_reset - Selectively resets an adapter 1597 * @dev: class device that is converted into a Scsi_host. 1598 * @attr: device attribute, not used. 1599 * @buf: containing the string "selective". 1600 * @count: unused variable. 1601 * 1602 * Description: 1603 * If the buf contains the string "selective" then lpfc_selective_reset() 1604 * is called to perform the reset. 1605 * 1606 * Notes: 1607 * Assumes any error from lpfc_selective_reset() will be negative. 1608 * If lpfc_selective_reset() returns zero then the length of the buffer 1609 * is returned which indicates success 1610 * 1611 * Returns: 1612 * -EINVAL if the buffer does not contain the string "selective" 1613 * length of buf if lpfc-selective_reset() if the call succeeds 1614 * return value of lpfc_selective_reset() if the call fails 1615 **/ 1616 static ssize_t 1617 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1618 const char *buf, size_t count) 1619 { 1620 struct Scsi_Host *shost = class_to_shost(dev); 1621 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1622 struct lpfc_hba *phba = vport->phba; 1623 int status = -EINVAL; 1624 1625 if (!phba->cfg_enable_hba_reset) 1626 return -EACCES; 1627 1628 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1629 status = phba->lpfc_selective_reset(phba); 1630 1631 if (status == 0) 1632 return strlen(buf); 1633 else 1634 return status; 1635 } 1636 1637 /** 1638 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1639 * @phba: lpfc_hba pointer. 1640 * 1641 * Description: 1642 * SLI4 interface type-2 device to wait on the sliport status register for 1643 * the readyness after performing a firmware reset. 1644 * 1645 * Returns: 1646 * zero for success, -EPERM when port does not have privilege to perform the 1647 * reset, -EIO when port timeout from recovering from the reset. 1648 * 1649 * Note: 1650 * As the caller will interpret the return code by value, be careful in making 1651 * change or addition to return codes. 1652 **/ 1653 int 1654 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1655 { 1656 struct lpfc_register portstat_reg = {0}; 1657 int i; 1658 1659 msleep(100); 1660 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1661 &portstat_reg.word0)) 1662 return -EIO; 1663 1664 /* verify if privileged for the request operation */ 1665 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1666 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1667 return -EPERM; 1668 1669 /* wait for the SLI port firmware ready after firmware reset */ 1670 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1671 msleep(10); 1672 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1673 &portstat_reg.word0)) 1674 continue; 1675 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1676 continue; 1677 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1678 continue; 1679 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1680 continue; 1681 break; 1682 } 1683 1684 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1685 return 0; 1686 else 1687 return -EIO; 1688 } 1689 1690 /** 1691 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1692 * @phba: lpfc_hba pointer. 1693 * @opcode: The sli4 config command opcode. 1694 * 1695 * Description: 1696 * Request SLI4 interface type-2 device to perform a physical register set 1697 * access. 1698 * 1699 * Returns: 1700 * zero for success 1701 **/ 1702 static ssize_t 1703 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1704 { 1705 struct completion online_compl; 1706 struct pci_dev *pdev = phba->pcidev; 1707 uint32_t before_fc_flag; 1708 uint32_t sriov_nr_virtfn; 1709 uint32_t reg_val; 1710 int status = 0, rc = 0; 1711 int job_posted = 1, sriov_err; 1712 1713 if (!phba->cfg_enable_hba_reset) 1714 return -EACCES; 1715 1716 if ((phba->sli_rev < LPFC_SLI_REV4) || 1717 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1718 LPFC_SLI_INTF_IF_TYPE_2)) 1719 return -EPERM; 1720 1721 /* Keep state if we need to restore back */ 1722 before_fc_flag = phba->pport->fc_flag; 1723 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1724 1725 if (opcode == LPFC_FW_DUMP) { 1726 init_completion(&online_compl); 1727 phba->fw_dump_cmpl = &online_compl; 1728 } else { 1729 /* Disable SR-IOV virtual functions if enabled */ 1730 if (phba->cfg_sriov_nr_virtfn) { 1731 pci_disable_sriov(pdev); 1732 phba->cfg_sriov_nr_virtfn = 0; 1733 } 1734 1735 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1736 1737 if (status != 0) 1738 return status; 1739 1740 /* wait for the device to be quiesced before firmware reset */ 1741 msleep(100); 1742 } 1743 1744 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1745 LPFC_CTL_PDEV_CTL_OFFSET); 1746 1747 if (opcode == LPFC_FW_DUMP) 1748 reg_val |= LPFC_FW_DUMP_REQUEST; 1749 else if (opcode == LPFC_FW_RESET) 1750 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1751 else if (opcode == LPFC_DV_RESET) 1752 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1753 1754 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1755 LPFC_CTL_PDEV_CTL_OFFSET); 1756 /* flush */ 1757 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1758 1759 /* delay driver action following IF_TYPE_2 reset */ 1760 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1761 1762 if (rc == -EPERM) { 1763 /* no privilege for reset */ 1764 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1765 "3150 No privilege to perform the requested " 1766 "access: x%x\n", reg_val); 1767 } else if (rc == -EIO) { 1768 /* reset failed, there is nothing more we can do */ 1769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1770 "3153 Fail to perform the requested " 1771 "access: x%x\n", reg_val); 1772 if (phba->fw_dump_cmpl) 1773 phba->fw_dump_cmpl = NULL; 1774 return rc; 1775 } 1776 1777 /* keep the original port state */ 1778 if (before_fc_flag & FC_OFFLINE_MODE) { 1779 if (phba->fw_dump_cmpl) 1780 phba->fw_dump_cmpl = NULL; 1781 goto out; 1782 } 1783 1784 /* Firmware dump will trigger an HA_ERATT event, and 1785 * lpfc_handle_eratt_s4 routine already handles bringing the port back 1786 * online. 1787 */ 1788 if (opcode == LPFC_FW_DUMP) { 1789 wait_for_completion(phba->fw_dump_cmpl); 1790 } else { 1791 init_completion(&online_compl); 1792 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1793 LPFC_EVT_ONLINE); 1794 if (!job_posted) 1795 goto out; 1796 1797 wait_for_completion(&online_compl); 1798 } 1799 out: 1800 /* in any case, restore the virtual functions enabled as before */ 1801 if (sriov_nr_virtfn) { 1802 /* If fw_dump was performed, first disable to clean up */ 1803 if (opcode == LPFC_FW_DUMP) { 1804 pci_disable_sriov(pdev); 1805 phba->cfg_sriov_nr_virtfn = 0; 1806 } 1807 1808 sriov_err = 1809 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1810 if (!sriov_err) 1811 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1812 } 1813 1814 /* return proper error code */ 1815 if (!rc) { 1816 if (!job_posted) 1817 rc = -ENOMEM; 1818 else if (status) 1819 rc = -EIO; 1820 } 1821 return rc; 1822 } 1823 1824 /** 1825 * lpfc_nport_evt_cnt_show - Return the number of nport events 1826 * @dev: class device that is converted into a Scsi_host. 1827 * @attr: device attribute, not used. 1828 * @buf: on return contains the ascii number of nport events. 1829 * 1830 * Returns: size of formatted string. 1831 **/ 1832 static ssize_t 1833 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1834 char *buf) 1835 { 1836 struct Scsi_Host *shost = class_to_shost(dev); 1837 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1838 struct lpfc_hba *phba = vport->phba; 1839 1840 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1841 } 1842 1843 static int 1844 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1845 { 1846 LPFC_MBOXQ_t *mbox = NULL; 1847 unsigned long val = 0; 1848 char *pval = NULL; 1849 int rc = 0; 1850 1851 if (!strncmp("enable", buff_out, 1852 strlen("enable"))) { 1853 pval = buff_out + strlen("enable") + 1; 1854 rc = kstrtoul(pval, 0, &val); 1855 if (rc) 1856 return rc; /* Invalid number */ 1857 } else if (!strncmp("disable", buff_out, 1858 strlen("disable"))) { 1859 val = 0; 1860 } else { 1861 return -EINVAL; /* Invalid command */ 1862 } 1863 1864 switch (val) { 1865 case 0: 1866 val = 0x0; /* Disable */ 1867 break; 1868 case 2: 1869 val = 0x1; /* Enable two port trunk */ 1870 break; 1871 case 4: 1872 val = 0x2; /* Enable four port trunk */ 1873 break; 1874 default: 1875 return -EINVAL; 1876 } 1877 1878 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1879 "0070 Set trunk mode with val %ld ", val); 1880 1881 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1882 if (!mbox) 1883 return -ENOMEM; 1884 1885 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1886 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1887 12, LPFC_SLI4_MBX_EMBED); 1888 1889 bf_set(lpfc_mbx_set_trunk_mode, 1890 &mbox->u.mqe.un.set_trunk_mode, 1891 val); 1892 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1893 if (rc) 1894 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1895 "0071 Set trunk mode failed with status: %d", 1896 rc); 1897 mempool_free(mbox, phba->mbox_mem_pool); 1898 1899 return 0; 1900 } 1901 1902 /** 1903 * lpfc_board_mode_show - Return the state of the board 1904 * @dev: class device that is converted into a Scsi_host. 1905 * @attr: device attribute, not used. 1906 * @buf: on return contains the state of the adapter. 1907 * 1908 * Returns: size of formatted string. 1909 **/ 1910 static ssize_t 1911 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1912 char *buf) 1913 { 1914 struct Scsi_Host *shost = class_to_shost(dev); 1915 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1916 struct lpfc_hba *phba = vport->phba; 1917 char * state; 1918 1919 if (phba->link_state == LPFC_HBA_ERROR) 1920 state = "error"; 1921 else if (phba->link_state == LPFC_WARM_START) 1922 state = "warm start"; 1923 else if (phba->link_state == LPFC_INIT_START) 1924 state = "offline"; 1925 else 1926 state = "online"; 1927 1928 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1929 } 1930 1931 /** 1932 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1933 * @dev: class device that is converted into a Scsi_host. 1934 * @attr: device attribute, not used. 1935 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1936 * @count: unused variable. 1937 * 1938 * Returns: 1939 * -EACCES if enable hba reset not enabled 1940 * -EINVAL if the buffer does not contain a valid string (see above) 1941 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1942 * buf length greater than zero indicates success 1943 **/ 1944 static ssize_t 1945 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1946 const char *buf, size_t count) 1947 { 1948 struct Scsi_Host *shost = class_to_shost(dev); 1949 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1950 struct lpfc_hba *phba = vport->phba; 1951 struct completion online_compl; 1952 char *board_mode_str = NULL; 1953 int status = 0; 1954 int rc; 1955 1956 if (!phba->cfg_enable_hba_reset) { 1957 status = -EACCES; 1958 goto board_mode_out; 1959 } 1960 1961 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1962 "3050 lpfc_board_mode set to %s\n", buf); 1963 1964 init_completion(&online_compl); 1965 1966 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1967 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1968 LPFC_EVT_ONLINE); 1969 if (rc == 0) { 1970 status = -ENOMEM; 1971 goto board_mode_out; 1972 } 1973 wait_for_completion(&online_compl); 1974 if (status) 1975 status = -EIO; 1976 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1977 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1978 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1979 if (phba->sli_rev == LPFC_SLI_REV4) 1980 status = -EINVAL; 1981 else 1982 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1983 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1984 if (phba->sli_rev == LPFC_SLI_REV4) 1985 status = -EINVAL; 1986 else 1987 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1988 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1989 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1990 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1991 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1992 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1993 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1994 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1995 == 0) 1996 status = lpfc_reset_pci_bus(phba); 1997 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1998 lpfc_issue_hb_tmo(phba); 1999 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 2000 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 2001 else 2002 status = -EINVAL; 2003 2004 board_mode_out: 2005 if (!status) 2006 return strlen(buf); 2007 else { 2008 board_mode_str = strchr(buf, '\n'); 2009 if (board_mode_str) 2010 *board_mode_str = '\0'; 2011 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2012 "3097 Failed \"%s\", status(%d), " 2013 "fc_flag(x%x)\n", 2014 buf, status, phba->pport->fc_flag); 2015 return status; 2016 } 2017 } 2018 2019 /** 2020 * lpfc_get_hba_info - Return various bits of informaton about the adapter 2021 * @phba: pointer to the adapter structure. 2022 * @mxri: max xri count. 2023 * @axri: available xri count. 2024 * @mrpi: max rpi count. 2025 * @arpi: available rpi count. 2026 * @mvpi: max vpi count. 2027 * @avpi: available vpi count. 2028 * 2029 * Description: 2030 * If an integer pointer for an count is not null then the value for the 2031 * count is returned. 2032 * 2033 * Returns: 2034 * zero on error 2035 * one for success 2036 **/ 2037 static int 2038 lpfc_get_hba_info(struct lpfc_hba *phba, 2039 uint32_t *mxri, uint32_t *axri, 2040 uint32_t *mrpi, uint32_t *arpi, 2041 uint32_t *mvpi, uint32_t *avpi) 2042 { 2043 struct lpfc_mbx_read_config *rd_config; 2044 LPFC_MBOXQ_t *pmboxq; 2045 MAILBOX_t *pmb; 2046 int rc = 0; 2047 uint32_t max_vpi; 2048 2049 /* 2050 * prevent udev from issuing mailbox commands until the port is 2051 * configured. 2052 */ 2053 if (phba->link_state < LPFC_LINK_DOWN || 2054 !phba->mbox_mem_pool || 2055 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2056 return 0; 2057 2058 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2059 return 0; 2060 2061 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2062 if (!pmboxq) 2063 return 0; 2064 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2065 2066 pmb = &pmboxq->u.mb; 2067 pmb->mbxCommand = MBX_READ_CONFIG; 2068 pmb->mbxOwner = OWN_HOST; 2069 pmboxq->ctx_buf = NULL; 2070 2071 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2072 rc = MBX_NOT_FINISHED; 2073 else 2074 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2075 2076 if (rc != MBX_SUCCESS) { 2077 if (rc != MBX_TIMEOUT) 2078 mempool_free(pmboxq, phba->mbox_mem_pool); 2079 return 0; 2080 } 2081 2082 if (phba->sli_rev == LPFC_SLI_REV4) { 2083 rd_config = &pmboxq->u.mqe.un.rd_config; 2084 if (mrpi) 2085 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 2086 if (arpi) 2087 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 2088 phba->sli4_hba.max_cfg_param.rpi_used; 2089 if (mxri) 2090 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 2091 if (axri) 2092 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 2093 phba->sli4_hba.max_cfg_param.xri_used; 2094 2095 /* Account for differences with SLI-3. Get vpi count from 2096 * mailbox data and subtract one for max vpi value. 2097 */ 2098 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 2099 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 2100 2101 /* Limit the max we support */ 2102 if (max_vpi > LPFC_MAX_VPI) 2103 max_vpi = LPFC_MAX_VPI; 2104 if (mvpi) 2105 *mvpi = max_vpi; 2106 if (avpi) 2107 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 2108 } else { 2109 if (mrpi) 2110 *mrpi = pmb->un.varRdConfig.max_rpi; 2111 if (arpi) 2112 *arpi = pmb->un.varRdConfig.avail_rpi; 2113 if (mxri) 2114 *mxri = pmb->un.varRdConfig.max_xri; 2115 if (axri) 2116 *axri = pmb->un.varRdConfig.avail_xri; 2117 if (mvpi) 2118 *mvpi = pmb->un.varRdConfig.max_vpi; 2119 if (avpi) { 2120 /* avail_vpi is only valid if link is up and ready */ 2121 if (phba->link_state == LPFC_HBA_READY) 2122 *avpi = pmb->un.varRdConfig.avail_vpi; 2123 else 2124 *avpi = pmb->un.varRdConfig.max_vpi; 2125 } 2126 } 2127 2128 mempool_free(pmboxq, phba->mbox_mem_pool); 2129 return 1; 2130 } 2131 2132 /** 2133 * lpfc_max_rpi_show - Return maximum rpi 2134 * @dev: class device that is converted into a Scsi_host. 2135 * @attr: device attribute, not used. 2136 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2137 * 2138 * Description: 2139 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2140 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2141 * to "Unknown" and the buffer length is returned, therefore the caller 2142 * must check for "Unknown" in the buffer to detect a failure. 2143 * 2144 * Returns: size of formatted string. 2145 **/ 2146 static ssize_t 2147 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2148 char *buf) 2149 { 2150 struct Scsi_Host *shost = class_to_shost(dev); 2151 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2152 struct lpfc_hba *phba = vport->phba; 2153 uint32_t cnt; 2154 2155 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2156 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2157 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2158 } 2159 2160 /** 2161 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2162 * @dev: class device that is converted into a Scsi_host. 2163 * @attr: device attribute, not used. 2164 * @buf: containing the used rpi count in decimal or "Unknown". 2165 * 2166 * Description: 2167 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 2168 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2169 * to "Unknown" and the buffer length is returned, therefore the caller 2170 * must check for "Unknown" in the buffer to detect a failure. 2171 * 2172 * Returns: size of formatted string. 2173 **/ 2174 static ssize_t 2175 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 2176 char *buf) 2177 { 2178 struct Scsi_Host *shost = class_to_shost(dev); 2179 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2180 struct lpfc_hba *phba = vport->phba; 2181 uint32_t cnt, acnt; 2182 2183 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2184 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2185 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2186 } 2187 2188 /** 2189 * lpfc_max_xri_show - Return maximum xri 2190 * @dev: class device that is converted into a Scsi_host. 2191 * @attr: device attribute, not used. 2192 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2193 * 2194 * Description: 2195 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2196 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2197 * to "Unknown" and the buffer length is returned, therefore the caller 2198 * must check for "Unknown" in the buffer to detect a failure. 2199 * 2200 * Returns: size of formatted string. 2201 **/ 2202 static ssize_t 2203 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2204 char *buf) 2205 { 2206 struct Scsi_Host *shost = class_to_shost(dev); 2207 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2208 struct lpfc_hba *phba = vport->phba; 2209 uint32_t cnt; 2210 2211 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2212 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2213 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2214 } 2215 2216 /** 2217 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2218 * @dev: class device that is converted into a Scsi_host. 2219 * @attr: device attribute, not used. 2220 * @buf: on return contains the used xri count in decimal or "Unknown". 2221 * 2222 * Description: 2223 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2224 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2225 * to "Unknown" and the buffer length is returned, therefore the caller 2226 * must check for "Unknown" in the buffer to detect a failure. 2227 * 2228 * Returns: size of formatted string. 2229 **/ 2230 static ssize_t 2231 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2232 char *buf) 2233 { 2234 struct Scsi_Host *shost = class_to_shost(dev); 2235 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2236 struct lpfc_hba *phba = vport->phba; 2237 uint32_t cnt, acnt; 2238 2239 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2240 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2241 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2242 } 2243 2244 /** 2245 * lpfc_max_vpi_show - Return maximum vpi 2246 * @dev: class device that is converted into a Scsi_host. 2247 * @attr: device attribute, not used. 2248 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2249 * 2250 * Description: 2251 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2252 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2253 * to "Unknown" and the buffer length is returned, therefore the caller 2254 * must check for "Unknown" in the buffer to detect a failure. 2255 * 2256 * Returns: size of formatted string. 2257 **/ 2258 static ssize_t 2259 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2260 char *buf) 2261 { 2262 struct Scsi_Host *shost = class_to_shost(dev); 2263 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2264 struct lpfc_hba *phba = vport->phba; 2265 uint32_t cnt; 2266 2267 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2268 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2269 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2270 } 2271 2272 /** 2273 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2274 * @dev: class device that is converted into a Scsi_host. 2275 * @attr: device attribute, not used. 2276 * @buf: on return contains the used vpi count in decimal or "Unknown". 2277 * 2278 * Description: 2279 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2280 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2281 * to "Unknown" and the buffer length is returned, therefore the caller 2282 * must check for "Unknown" in the buffer to detect a failure. 2283 * 2284 * Returns: size of formatted string. 2285 **/ 2286 static ssize_t 2287 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2288 char *buf) 2289 { 2290 struct Scsi_Host *shost = class_to_shost(dev); 2291 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2292 struct lpfc_hba *phba = vport->phba; 2293 uint32_t cnt, acnt; 2294 2295 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2296 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2297 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2298 } 2299 2300 /** 2301 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2302 * @dev: class device that is converted into a Scsi_host. 2303 * @attr: device attribute, not used. 2304 * @buf: text that must be interpreted to determine if npiv is supported. 2305 * 2306 * Description: 2307 * Buffer will contain text indicating npiv is not suppoerted on the port, 2308 * the port is an NPIV physical port, or it is an npiv virtual port with 2309 * the id of the vport. 2310 * 2311 * Returns: size of formatted string. 2312 **/ 2313 static ssize_t 2314 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2315 char *buf) 2316 { 2317 struct Scsi_Host *shost = class_to_shost(dev); 2318 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2319 struct lpfc_hba *phba = vport->phba; 2320 2321 if (!(phba->max_vpi)) 2322 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2323 if (vport->port_type == LPFC_PHYSICAL_PORT) 2324 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2325 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2326 } 2327 2328 /** 2329 * lpfc_poll_show - Return text about poll support for the adapter 2330 * @dev: class device that is converted into a Scsi_host. 2331 * @attr: device attribute, not used. 2332 * @buf: on return contains the cfg_poll in hex. 2333 * 2334 * Notes: 2335 * cfg_poll should be a lpfc_polling_flags type. 2336 * 2337 * Returns: size of formatted string. 2338 **/ 2339 static ssize_t 2340 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2341 char *buf) 2342 { 2343 struct Scsi_Host *shost = class_to_shost(dev); 2344 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2345 struct lpfc_hba *phba = vport->phba; 2346 2347 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2348 } 2349 2350 /** 2351 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2352 * @dev: class device that is converted into a Scsi_host. 2353 * @attr: device attribute, not used. 2354 * @buf: one or more lpfc_polling_flags values. 2355 * @count: not used. 2356 * 2357 * Notes: 2358 * buf contents converted to integer and checked for a valid value. 2359 * 2360 * Returns: 2361 * -EINVAL if the buffer connot be converted or is out of range 2362 * length of the buf on success 2363 **/ 2364 static ssize_t 2365 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2366 const char *buf, size_t count) 2367 { 2368 struct Scsi_Host *shost = class_to_shost(dev); 2369 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2370 struct lpfc_hba *phba = vport->phba; 2371 uint32_t creg_val; 2372 uint32_t old_val; 2373 int val=0; 2374 2375 if (!isdigit(buf[0])) 2376 return -EINVAL; 2377 2378 if (sscanf(buf, "%i", &val) != 1) 2379 return -EINVAL; 2380 2381 if ((val & 0x3) != val) 2382 return -EINVAL; 2383 2384 if (phba->sli_rev == LPFC_SLI_REV4) 2385 val = 0; 2386 2387 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2388 "3051 lpfc_poll changed from %d to %d\n", 2389 phba->cfg_poll, val); 2390 2391 spin_lock_irq(&phba->hbalock); 2392 2393 old_val = phba->cfg_poll; 2394 2395 if (val & ENABLE_FCP_RING_POLLING) { 2396 if ((val & DISABLE_FCP_RING_INT) && 2397 !(old_val & DISABLE_FCP_RING_INT)) { 2398 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2399 spin_unlock_irq(&phba->hbalock); 2400 return -EINVAL; 2401 } 2402 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2403 writel(creg_val, phba->HCregaddr); 2404 readl(phba->HCregaddr); /* flush */ 2405 2406 lpfc_poll_start_timer(phba); 2407 } 2408 } else if (val != 0x0) { 2409 spin_unlock_irq(&phba->hbalock); 2410 return -EINVAL; 2411 } 2412 2413 if (!(val & DISABLE_FCP_RING_INT) && 2414 (old_val & DISABLE_FCP_RING_INT)) 2415 { 2416 spin_unlock_irq(&phba->hbalock); 2417 del_timer(&phba->fcp_poll_timer); 2418 spin_lock_irq(&phba->hbalock); 2419 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2420 spin_unlock_irq(&phba->hbalock); 2421 return -EINVAL; 2422 } 2423 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2424 writel(creg_val, phba->HCregaddr); 2425 readl(phba->HCregaddr); /* flush */ 2426 } 2427 2428 phba->cfg_poll = val; 2429 2430 spin_unlock_irq(&phba->hbalock); 2431 2432 return strlen(buf); 2433 } 2434 2435 /** 2436 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2437 * @dev: class converted to a Scsi_host structure. 2438 * @attr: device attribute, not used. 2439 * @buf: on return contains the formatted support level. 2440 * 2441 * Description: 2442 * Returns the maximum number of virtual functions a physical function can 2443 * support, 0 will be returned if called on virtual function. 2444 * 2445 * Returns: size of formatted string. 2446 **/ 2447 static ssize_t 2448 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2449 struct device_attribute *attr, 2450 char *buf) 2451 { 2452 struct Scsi_Host *shost = class_to_shost(dev); 2453 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2454 struct lpfc_hba *phba = vport->phba; 2455 uint16_t max_nr_virtfn; 2456 2457 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2458 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2459 } 2460 2461 /** 2462 * lpfc_enable_bbcr_set: Sets an attribute value. 2463 * @phba: pointer the the adapter structure. 2464 * @val: integer attribute value. 2465 * 2466 * Description: 2467 * Validates the min and max values then sets the 2468 * adapter config field if in the valid range. prints error message 2469 * and does not set the parameter if invalid. 2470 * 2471 * Returns: 2472 * zero on success 2473 * -EINVAL if val is invalid 2474 */ 2475 static ssize_t 2476 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2477 { 2478 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2480 "3068 lpfc_enable_bbcr changed from %d to " 2481 "%d\n", phba->cfg_enable_bbcr, val); 2482 phba->cfg_enable_bbcr = val; 2483 return 0; 2484 } 2485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2486 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2487 "1\n", val); 2488 return -EINVAL; 2489 } 2490 2491 /* 2492 * lpfc_param_show - Return a cfg attribute value in decimal 2493 * 2494 * Description: 2495 * Macro that given an attr e.g. hba_queue_depth expands 2496 * into a function with the name lpfc_hba_queue_depth_show. 2497 * 2498 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2499 * @dev: class device that is converted into a Scsi_host. 2500 * @attr: device attribute, not used. 2501 * @buf: on return contains the attribute value in decimal. 2502 * 2503 * Returns: size of formatted string. 2504 **/ 2505 #define lpfc_param_show(attr) \ 2506 static ssize_t \ 2507 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2508 char *buf) \ 2509 { \ 2510 struct Scsi_Host *shost = class_to_shost(dev);\ 2511 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2512 struct lpfc_hba *phba = vport->phba;\ 2513 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2514 phba->cfg_##attr);\ 2515 } 2516 2517 /* 2518 * lpfc_param_hex_show - Return a cfg attribute value in hex 2519 * 2520 * Description: 2521 * Macro that given an attr e.g. hba_queue_depth expands 2522 * into a function with the name lpfc_hba_queue_depth_show 2523 * 2524 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2525 * @dev: class device that is converted into a Scsi_host. 2526 * @attr: device attribute, not used. 2527 * @buf: on return contains the attribute value in hexadecimal. 2528 * 2529 * Returns: size of formatted string. 2530 **/ 2531 #define lpfc_param_hex_show(attr) \ 2532 static ssize_t \ 2533 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2534 char *buf) \ 2535 { \ 2536 struct Scsi_Host *shost = class_to_shost(dev);\ 2537 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2538 struct lpfc_hba *phba = vport->phba;\ 2539 uint val = 0;\ 2540 val = phba->cfg_##attr;\ 2541 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2542 phba->cfg_##attr);\ 2543 } 2544 2545 /* 2546 * lpfc_param_init - Initializes a cfg attribute 2547 * 2548 * Description: 2549 * Macro that given an attr e.g. hba_queue_depth expands 2550 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2551 * takes a default argument, a minimum and maximum argument. 2552 * 2553 * lpfc_##attr##_init: Initializes an attribute. 2554 * @phba: pointer the the adapter structure. 2555 * @val: integer attribute value. 2556 * 2557 * Validates the min and max values then sets the adapter config field 2558 * accordingly, or uses the default if out of range and prints an error message. 2559 * 2560 * Returns: 2561 * zero on success 2562 * -EINVAL if default used 2563 **/ 2564 #define lpfc_param_init(attr, default, minval, maxval) \ 2565 static int \ 2566 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2567 { \ 2568 if (lpfc_rangecheck(val, minval, maxval)) {\ 2569 phba->cfg_##attr = val;\ 2570 return 0;\ 2571 }\ 2572 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2573 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2574 "allowed range is ["#minval", "#maxval"]\n", val); \ 2575 phba->cfg_##attr = default;\ 2576 return -EINVAL;\ 2577 } 2578 2579 /* 2580 * lpfc_param_set - Set a cfg attribute value 2581 * 2582 * Description: 2583 * Macro that given an attr e.g. hba_queue_depth expands 2584 * into a function with the name lpfc_hba_queue_depth_set 2585 * 2586 * lpfc_##attr##_set: Sets an attribute value. 2587 * @phba: pointer the the adapter structure. 2588 * @val: integer attribute value. 2589 * 2590 * Description: 2591 * Validates the min and max values then sets the 2592 * adapter config field if in the valid range. prints error message 2593 * and does not set the parameter if invalid. 2594 * 2595 * Returns: 2596 * zero on success 2597 * -EINVAL if val is invalid 2598 **/ 2599 #define lpfc_param_set(attr, default, minval, maxval) \ 2600 static int \ 2601 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2602 { \ 2603 if (lpfc_rangecheck(val, minval, maxval)) {\ 2604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2605 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2606 phba->cfg_##attr, val); \ 2607 phba->cfg_##attr = val;\ 2608 return 0;\ 2609 }\ 2610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2611 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2612 "allowed range is ["#minval", "#maxval"]\n", val); \ 2613 return -EINVAL;\ 2614 } 2615 2616 /* 2617 * lpfc_param_store - Set a vport attribute value 2618 * 2619 * Description: 2620 * Macro that given an attr e.g. hba_queue_depth expands 2621 * into a function with the name lpfc_hba_queue_depth_store. 2622 * 2623 * lpfc_##attr##_store: Set an sttribute value. 2624 * @dev: class device that is converted into a Scsi_host. 2625 * @attr: device attribute, not used. 2626 * @buf: contains the attribute value in ascii. 2627 * @count: not used. 2628 * 2629 * Description: 2630 * Convert the ascii text number to an integer, then 2631 * use the lpfc_##attr##_set function to set the value. 2632 * 2633 * Returns: 2634 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2635 * length of buffer upon success. 2636 **/ 2637 #define lpfc_param_store(attr) \ 2638 static ssize_t \ 2639 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2640 const char *buf, size_t count) \ 2641 { \ 2642 struct Scsi_Host *shost = class_to_shost(dev);\ 2643 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2644 struct lpfc_hba *phba = vport->phba;\ 2645 uint val = 0;\ 2646 if (!isdigit(buf[0]))\ 2647 return -EINVAL;\ 2648 if (sscanf(buf, "%i", &val) != 1)\ 2649 return -EINVAL;\ 2650 if (lpfc_##attr##_set(phba, val) == 0) \ 2651 return strlen(buf);\ 2652 else \ 2653 return -EINVAL;\ 2654 } 2655 2656 /* 2657 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2658 * 2659 * Description: 2660 * Macro that given an attr e.g. hba_queue_depth expands 2661 * into a function with the name lpfc_hba_queue_depth_show 2662 * 2663 * lpfc_##attr##_show: prints the attribute value in decimal. 2664 * @dev: class device that is converted into a Scsi_host. 2665 * @attr: device attribute, not used. 2666 * @buf: on return contains the attribute value in decimal. 2667 * 2668 * Returns: length of formatted string. 2669 **/ 2670 #define lpfc_vport_param_show(attr) \ 2671 static ssize_t \ 2672 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2673 char *buf) \ 2674 { \ 2675 struct Scsi_Host *shost = class_to_shost(dev);\ 2676 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2677 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2678 } 2679 2680 /* 2681 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2682 * 2683 * Description: 2684 * Macro that given an attr e.g. 2685 * hba_queue_depth expands into a function with the name 2686 * lpfc_hba_queue_depth_show 2687 * 2688 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2689 * @dev: class device that is converted into a Scsi_host. 2690 * @attr: device attribute, not used. 2691 * @buf: on return contains the attribute value in hexadecimal. 2692 * 2693 * Returns: length of formatted string. 2694 **/ 2695 #define lpfc_vport_param_hex_show(attr) \ 2696 static ssize_t \ 2697 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2698 char *buf) \ 2699 { \ 2700 struct Scsi_Host *shost = class_to_shost(dev);\ 2701 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2702 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2703 } 2704 2705 /* 2706 * lpfc_vport_param_init - Initialize a vport cfg attribute 2707 * 2708 * Description: 2709 * Macro that given an attr e.g. hba_queue_depth expands 2710 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2711 * takes a default argument, a minimum and maximum argument. 2712 * 2713 * lpfc_##attr##_init: validates the min and max values then sets the 2714 * adapter config field accordingly, or uses the default if out of range 2715 * and prints an error message. 2716 * @phba: pointer the the adapter structure. 2717 * @val: integer attribute value. 2718 * 2719 * Returns: 2720 * zero on success 2721 * -EINVAL if default used 2722 **/ 2723 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2724 static int \ 2725 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2726 { \ 2727 if (lpfc_rangecheck(val, minval, maxval)) {\ 2728 vport->cfg_##attr = val;\ 2729 return 0;\ 2730 }\ 2731 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2732 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2733 "allowed range is ["#minval", "#maxval"]\n", val); \ 2734 vport->cfg_##attr = default;\ 2735 return -EINVAL;\ 2736 } 2737 2738 /* 2739 * lpfc_vport_param_set - Set a vport cfg attribute 2740 * 2741 * Description: 2742 * Macro that given an attr e.g. hba_queue_depth expands 2743 * into a function with the name lpfc_hba_queue_depth_set 2744 * 2745 * lpfc_##attr##_set: validates the min and max values then sets the 2746 * adapter config field if in the valid range. prints error message 2747 * and does not set the parameter if invalid. 2748 * @phba: pointer the the adapter structure. 2749 * @val: integer attribute value. 2750 * 2751 * Returns: 2752 * zero on success 2753 * -EINVAL if val is invalid 2754 **/ 2755 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2756 static int \ 2757 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2758 { \ 2759 if (lpfc_rangecheck(val, minval, maxval)) {\ 2760 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2761 "3053 lpfc_" #attr \ 2762 " changed from %d (x%x) to %d (x%x)\n", \ 2763 vport->cfg_##attr, vport->cfg_##attr, \ 2764 val, val); \ 2765 vport->cfg_##attr = val;\ 2766 return 0;\ 2767 }\ 2768 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2769 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2770 "allowed range is ["#minval", "#maxval"]\n", val); \ 2771 return -EINVAL;\ 2772 } 2773 2774 /* 2775 * lpfc_vport_param_store - Set a vport attribute 2776 * 2777 * Description: 2778 * Macro that given an attr e.g. hba_queue_depth 2779 * expands into a function with the name lpfc_hba_queue_depth_store 2780 * 2781 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2782 * use the lpfc_##attr##_set function to set the value. 2783 * @cdev: class device that is converted into a Scsi_host. 2784 * @buf: contains the attribute value in decimal. 2785 * @count: not used. 2786 * 2787 * Returns: 2788 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2789 * length of buffer upon success. 2790 **/ 2791 #define lpfc_vport_param_store(attr) \ 2792 static ssize_t \ 2793 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2794 const char *buf, size_t count) \ 2795 { \ 2796 struct Scsi_Host *shost = class_to_shost(dev);\ 2797 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2798 uint val = 0;\ 2799 if (!isdigit(buf[0]))\ 2800 return -EINVAL;\ 2801 if (sscanf(buf, "%i", &val) != 1)\ 2802 return -EINVAL;\ 2803 if (lpfc_##attr##_set(vport, val) == 0) \ 2804 return strlen(buf);\ 2805 else \ 2806 return -EINVAL;\ 2807 } 2808 2809 2810 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2811 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2812 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2813 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2814 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2815 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2816 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2817 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2818 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2819 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2820 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2821 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2822 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2823 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2824 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2825 lpfc_link_state_store); 2826 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2827 lpfc_option_rom_version_show, NULL); 2828 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2829 lpfc_num_discovered_ports_show, NULL); 2830 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2831 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2832 static DEVICE_ATTR_RO(lpfc_drvr_version); 2833 static DEVICE_ATTR_RO(lpfc_enable_fip); 2834 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2835 lpfc_board_mode_show, lpfc_board_mode_store); 2836 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2837 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2838 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2839 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2840 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2841 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2842 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2843 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2844 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2845 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2846 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2847 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2848 NULL); 2849 static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 2850 2851 #define WWN_SZ 8 2852 /** 2853 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2854 * @buf: WWN string. 2855 * @cnt: Length of string. 2856 * @wwn: Array to receive converted wwn value. 2857 * 2858 * Returns: 2859 * -EINVAL if the buffer does not contain a valid wwn 2860 * 0 success 2861 **/ 2862 static size_t 2863 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2864 { 2865 unsigned int i, j; 2866 2867 /* Count may include a LF at end of string */ 2868 if (buf[cnt-1] == '\n') 2869 cnt--; 2870 2871 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2872 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2873 return -EINVAL; 2874 2875 memset(wwn, 0, WWN_SZ); 2876 2877 /* Validate and store the new name */ 2878 for (i = 0, j = 0; i < 16; i++) { 2879 if ((*buf >= 'a') && (*buf <= 'f')) 2880 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2881 else if ((*buf >= 'A') && (*buf <= 'F')) 2882 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2883 else if ((*buf >= '0') && (*buf <= '9')) 2884 j = ((j << 4) | (*buf++ - '0')); 2885 else 2886 return -EINVAL; 2887 if (i % 2) { 2888 wwn[i/2] = j & 0xff; 2889 j = 0; 2890 } 2891 } 2892 return 0; 2893 } 2894 2895 2896 /** 2897 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2898 * Optimized Access Storage (OAS) operations. 2899 * @dev: class device that is converted into a Scsi_host. 2900 * @attr: device attribute, not used. 2901 * @buf: buffer for passing information. 2902 * 2903 * Returns: 2904 * value of count 2905 **/ 2906 static ssize_t 2907 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2908 char *buf) 2909 { 2910 struct Scsi_Host *shost = class_to_shost(dev); 2911 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2912 2913 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2914 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2915 } 2916 2917 /** 2918 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2919 * Optimized Access Storage (OAS) operations. 2920 * @dev: class device that is converted into a Scsi_host. 2921 * @attr: device attribute, not used. 2922 * @buf: buffer for passing information. 2923 * @count: Size of the data buffer. 2924 * 2925 * Returns: 2926 * -EINVAL count is invalid, invalid wwpn byte invalid 2927 * -EPERM oas is not supported by hba 2928 * value of count on success 2929 **/ 2930 static ssize_t 2931 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2932 const char *buf, size_t count) 2933 { 2934 struct Scsi_Host *shost = class_to_shost(dev); 2935 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2936 unsigned int cnt = count; 2937 uint8_t wwpn[WWN_SZ]; 2938 int rc; 2939 2940 if (!phba->cfg_fof) 2941 return -EPERM; 2942 2943 /* count may include a LF at end of string */ 2944 if (buf[cnt-1] == '\n') 2945 cnt--; 2946 2947 rc = lpfc_wwn_set(buf, cnt, wwpn); 2948 if (rc) 2949 return rc; 2950 2951 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2952 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2953 if (wwn_to_u64(wwpn) == 0) 2954 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2955 else 2956 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2957 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2958 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2959 return count; 2960 } 2961 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2962 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2963 2964 /** 2965 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2966 * Optimized Access Storage (OAS) operations. 2967 * @dev: class device that is converted into a Scsi_host. 2968 * @attr: device attribute, not used. 2969 * @buf: buffer for passing information. 2970 * 2971 * Returns: 2972 * value of count 2973 **/ 2974 static ssize_t 2975 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2976 char *buf) 2977 { 2978 struct Scsi_Host *shost = class_to_shost(dev); 2979 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2980 2981 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2982 } 2983 2984 /** 2985 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 2986 * Optimized Access Storage (OAS) operations. 2987 * @dev: class device that is converted into a Scsi_host. 2988 * @attr: device attribute, not used. 2989 * @buf: buffer for passing information. 2990 * @count: Size of the data buffer. 2991 * 2992 * Returns: 2993 * -EINVAL count is invalid, invalid wwpn byte invalid 2994 * -EPERM oas is not supported by hba 2995 * value of count on success 2996 **/ 2997 static ssize_t 2998 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 2999 const char *buf, size_t count) 3000 { 3001 struct Scsi_Host *shost = class_to_shost(dev); 3002 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3003 unsigned int cnt = count; 3004 unsigned long val; 3005 int ret; 3006 3007 if (!phba->cfg_fof) 3008 return -EPERM; 3009 3010 /* count may include a LF at end of string */ 3011 if (buf[cnt-1] == '\n') 3012 cnt--; 3013 3014 ret = kstrtoul(buf, 0, &val); 3015 if (ret || (val > 0x7f)) 3016 return -EINVAL; 3017 3018 if (val) 3019 phba->cfg_oas_priority = (uint8_t)val; 3020 else 3021 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3022 return count; 3023 } 3024 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3025 lpfc_oas_priority_show, lpfc_oas_priority_store); 3026 3027 /** 3028 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3029 * for Optimized Access Storage (OAS) operations. 3030 * @dev: class device that is converted into a Scsi_host. 3031 * @attr: device attribute, not used. 3032 * @buf: buffer for passing information. 3033 * 3034 * Returns: 3035 * value of count on success 3036 **/ 3037 static ssize_t 3038 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3039 char *buf) 3040 { 3041 struct Scsi_Host *shost = class_to_shost(dev); 3042 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3043 3044 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3045 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3046 } 3047 3048 /** 3049 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3050 * for Optimized Access Storage (OAS) operations. 3051 * @dev: class device that is converted into a Scsi_host. 3052 * @attr: device attribute, not used. 3053 * @buf: buffer for passing information. 3054 * @count: Size of the data buffer. 3055 * 3056 * Returns: 3057 * -EINVAL count is invalid, invalid wwpn byte invalid 3058 * -EPERM oas is not supported by hba 3059 * value of count on success 3060 **/ 3061 static ssize_t 3062 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3063 const char *buf, size_t count) 3064 { 3065 struct Scsi_Host *shost = class_to_shost(dev); 3066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3067 unsigned int cnt = count; 3068 uint8_t wwpn[WWN_SZ]; 3069 int rc; 3070 3071 if (!phba->cfg_fof) 3072 return -EPERM; 3073 3074 /* count may include a LF at end of string */ 3075 if (buf[cnt-1] == '\n') 3076 cnt--; 3077 3078 rc = lpfc_wwn_set(buf, cnt, wwpn); 3079 if (rc) 3080 return rc; 3081 3082 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3083 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3084 if (wwn_to_u64(wwpn) == 0) 3085 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3086 else 3087 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3088 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3089 if (phba->cfg_oas_priority == 0) 3090 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3091 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3092 return count; 3093 } 3094 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3095 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3096 3097 /** 3098 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3099 * of whether luns will be enabled or disabled 3100 * for Optimized Access Storage (OAS) operations. 3101 * @dev: class device that is converted into a Scsi_host. 3102 * @attr: device attribute, not used. 3103 * @buf: buffer for passing information. 3104 * 3105 * Returns: 3106 * size of formatted string. 3107 **/ 3108 static ssize_t 3109 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3110 char *buf) 3111 { 3112 struct Scsi_Host *shost = class_to_shost(dev); 3113 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3114 3115 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3116 } 3117 3118 /** 3119 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3120 * of whether luns will be enabled or disabled 3121 * for Optimized Access Storage (OAS) operations. 3122 * @dev: class device that is converted into a Scsi_host. 3123 * @attr: device attribute, not used. 3124 * @buf: buffer for passing information. 3125 * @count: Size of the data buffer. 3126 * 3127 * Returns: 3128 * -EINVAL count is invalid, invalid wwpn byte invalid 3129 * -EPERM oas is not supported by hba 3130 * value of count on success 3131 **/ 3132 static ssize_t 3133 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3134 const char *buf, size_t count) 3135 { 3136 struct Scsi_Host *shost = class_to_shost(dev); 3137 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3138 int val = 0; 3139 3140 if (!phba->cfg_fof) 3141 return -EPERM; 3142 3143 if (!isdigit(buf[0])) 3144 return -EINVAL; 3145 3146 if (sscanf(buf, "%i", &val) != 1) 3147 return -EINVAL; 3148 3149 if ((val != 0) && (val != 1)) 3150 return -EINVAL; 3151 3152 phba->cfg_oas_lun_state = val; 3153 return strlen(buf); 3154 } 3155 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3156 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3157 3158 /** 3159 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3160 * Storage (OAS) lun returned by the 3161 * lpfc_oas_lun_show function. 3162 * @dev: class device that is converted into a Scsi_host. 3163 * @attr: device attribute, not used. 3164 * @buf: buffer for passing information. 3165 * 3166 * Returns: 3167 * size of formatted string. 3168 **/ 3169 static ssize_t 3170 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3171 char *buf) 3172 { 3173 struct Scsi_Host *shost = class_to_shost(dev); 3174 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3175 3176 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3177 return -EFAULT; 3178 3179 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3180 } 3181 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3182 lpfc_oas_lun_status_show, NULL); 3183 3184 3185 /** 3186 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3187 * (OAS) operations. 3188 * @phba: lpfc_hba pointer. 3189 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3190 * @tgt_wwpn: wwpn of the target associated with the returned lun 3191 * @lun: the fc lun for setting oas state. 3192 * @oas_state: the oas state to be set to the lun. 3193 * @pri: priority 3194 * 3195 * Returns: 3196 * SUCCESS : 0 3197 * -EPERM OAS is not enabled or not supported by this port. 3198 * 3199 */ 3200 static size_t 3201 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3202 uint8_t tgt_wwpn[], uint64_t lun, 3203 uint32_t oas_state, uint8_t pri) 3204 { 3205 3206 int rc = 0; 3207 3208 if (!phba->cfg_fof) 3209 return -EPERM; 3210 3211 if (oas_state) { 3212 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3213 (struct lpfc_name *)tgt_wwpn, 3214 lun, pri)) 3215 rc = -ENOMEM; 3216 } else { 3217 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3218 (struct lpfc_name *)tgt_wwpn, lun, pri); 3219 } 3220 return rc; 3221 3222 } 3223 3224 /** 3225 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3226 * Access Storage (OAS) operations. 3227 * @phba: lpfc_hba pointer. 3228 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3229 * @tgt_wwpn: wwpn of the target associated with the returned lun 3230 * @lun_status: status of the lun returned lun 3231 * @lun_pri: priority of the lun returned lun 3232 * 3233 * Returns the first or next lun enabled for OAS operations for the vport/target 3234 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3235 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3236 * 3237 * Return: 3238 * lun that is OAS enabled for the vport/target 3239 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3240 */ 3241 static uint64_t 3242 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3243 uint8_t tgt_wwpn[], uint32_t *lun_status, 3244 uint32_t *lun_pri) 3245 { 3246 uint64_t found_lun; 3247 3248 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3249 return NOT_OAS_ENABLED_LUN; 3250 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3251 phba->sli4_hba.oas_next_vpt_wwpn, 3252 (struct lpfc_name *) 3253 phba->sli4_hba.oas_next_tgt_wwpn, 3254 &phba->sli4_hba.oas_next_lun, 3255 (struct lpfc_name *)vpt_wwpn, 3256 (struct lpfc_name *)tgt_wwpn, 3257 &found_lun, lun_status, lun_pri)) 3258 return found_lun; 3259 else 3260 return NOT_OAS_ENABLED_LUN; 3261 } 3262 3263 /** 3264 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3265 * @phba: lpfc_hba pointer. 3266 * @vpt_wwpn: vport wwpn by reference. 3267 * @tgt_wwpn: target wwpn by reference. 3268 * @lun: the fc lun for setting oas state. 3269 * @oas_state: the oas state to be set to the oas_lun. 3270 * @pri: priority 3271 * 3272 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3273 * a lun for OAS operations. 3274 * 3275 * Return: 3276 * SUCCESS: 0 3277 * -ENOMEM: failed to enable an lun for OAS operations 3278 * -EPERM: OAS is not enabled 3279 */ 3280 static ssize_t 3281 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3282 uint8_t tgt_wwpn[], uint64_t lun, 3283 uint32_t oas_state, uint8_t pri) 3284 { 3285 3286 int rc; 3287 3288 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3289 oas_state, pri); 3290 return rc; 3291 } 3292 3293 /** 3294 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3295 * @dev: class device that is converted into a Scsi_host. 3296 * @attr: device attribute, not used. 3297 * @buf: buffer for passing information. 3298 * 3299 * This routine returns a lun enabled for OAS each time the function 3300 * is called. 3301 * 3302 * Returns: 3303 * SUCCESS: size of formatted string. 3304 * -EFAULT: target or vport wwpn was not set properly. 3305 * -EPERM: oas is not enabled. 3306 **/ 3307 static ssize_t 3308 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3309 char *buf) 3310 { 3311 struct Scsi_Host *shost = class_to_shost(dev); 3312 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3313 3314 uint64_t oas_lun; 3315 int len = 0; 3316 3317 if (!phba->cfg_fof) 3318 return -EPERM; 3319 3320 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3321 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3322 return -EFAULT; 3323 3324 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3325 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3326 return -EFAULT; 3327 3328 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3329 phba->cfg_oas_tgt_wwpn, 3330 &phba->cfg_oas_lun_status, 3331 &phba->cfg_oas_priority); 3332 if (oas_lun != NOT_OAS_ENABLED_LUN) 3333 phba->cfg_oas_flags |= OAS_LUN_VALID; 3334 3335 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3336 3337 return len; 3338 } 3339 3340 /** 3341 * lpfc_oas_lun_store - Sets the OAS state for lun 3342 * @dev: class device that is converted into a Scsi_host. 3343 * @attr: device attribute, not used. 3344 * @buf: buffer for passing information. 3345 * @count: size of the formatting string 3346 * 3347 * This function sets the OAS state for lun. Before this function is called, 3348 * the vport wwpn, target wwpn, and oas state need to be set. 3349 * 3350 * Returns: 3351 * SUCCESS: size of formatted string. 3352 * -EFAULT: target or vport wwpn was not set properly. 3353 * -EPERM: oas is not enabled. 3354 * size of formatted string. 3355 **/ 3356 static ssize_t 3357 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3358 const char *buf, size_t count) 3359 { 3360 struct Scsi_Host *shost = class_to_shost(dev); 3361 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3362 uint64_t scsi_lun; 3363 uint32_t pri; 3364 ssize_t rc; 3365 3366 if (!phba->cfg_fof) 3367 return -EPERM; 3368 3369 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3370 return -EFAULT; 3371 3372 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3373 return -EFAULT; 3374 3375 if (!isdigit(buf[0])) 3376 return -EINVAL; 3377 3378 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3379 return -EINVAL; 3380 3381 pri = phba->cfg_oas_priority; 3382 if (pri == 0) 3383 pri = phba->cfg_XLanePriority; 3384 3385 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3386 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3387 "priority 0x%x with oas state %d\n", 3388 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3389 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3390 pri, phba->cfg_oas_lun_state); 3391 3392 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3393 phba->cfg_oas_tgt_wwpn, scsi_lun, 3394 phba->cfg_oas_lun_state, pri); 3395 if (rc) 3396 return rc; 3397 3398 return count; 3399 } 3400 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3401 lpfc_oas_lun_show, lpfc_oas_lun_store); 3402 3403 int lpfc_enable_nvmet_cnt; 3404 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3405 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3406 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3407 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3408 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3409 3410 static int lpfc_poll = 0; 3411 module_param(lpfc_poll, int, S_IRUGO); 3412 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3413 " 0 - none," 3414 " 1 - poll with interrupts enabled" 3415 " 3 - poll and disable FCP ring interrupts"); 3416 3417 static DEVICE_ATTR_RW(lpfc_poll); 3418 3419 int lpfc_no_hba_reset_cnt; 3420 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3421 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3422 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3423 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3424 3425 LPFC_ATTR(sli_mode, 3, 3, 3, 3426 "SLI mode selector: 3 - select SLI-3"); 3427 3428 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3429 "Enable NPIV functionality"); 3430 3431 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3432 "FCF Fast failover=1 Priority failover=2"); 3433 3434 /* 3435 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3436 * aborted IO. 3437 * The range is [0,1]. Default value is 0 3438 * 0, IO completes after ABTS issued (default). 3439 * 1, IO completes after receipt of ABTS response or timeout. 3440 */ 3441 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3442 3443 /* 3444 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3445 # 0x0 = disabled, XRI/OXID use not tracked. 3446 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3447 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3448 */ 3449 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3450 "Enable RRQ functionality"); 3451 3452 /* 3453 # lpfc_suppress_link_up: Bring link up at initialization 3454 # 0x0 = bring link up (issue MBX_INIT_LINK) 3455 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3456 # 0x2 = never bring up link 3457 # Default value is 0. 3458 */ 3459 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3460 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3461 "Suppress Link Up at initialization"); 3462 3463 static ssize_t 3464 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3465 { 3466 struct Scsi_Host *shost = class_to_shost(dev); 3467 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3468 3469 return scnprintf(buf, PAGE_SIZE, "%d\n", 3470 phba->sli4_hba.pc_sli4_params.pls); 3471 } 3472 static DEVICE_ATTR(pls, 0444, 3473 lpfc_pls_show, NULL); 3474 3475 static ssize_t 3476 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3477 { 3478 struct Scsi_Host *shost = class_to_shost(dev); 3479 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3480 3481 return scnprintf(buf, PAGE_SIZE, "%d\n", 3482 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3483 } 3484 static DEVICE_ATTR(pt, 0444, 3485 lpfc_pt_show, NULL); 3486 3487 /* 3488 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3489 # 1 - (1024) 3490 # 2 - (2048) 3491 # 3 - (3072) 3492 # 4 - (4096) 3493 # 5 - (5120) 3494 */ 3495 static ssize_t 3496 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3497 { 3498 struct Scsi_Host *shost = class_to_shost(dev); 3499 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3500 3501 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3502 } 3503 3504 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3505 lpfc_iocb_hw_show, NULL); 3506 static ssize_t 3507 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3508 { 3509 struct Scsi_Host *shost = class_to_shost(dev); 3510 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3511 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3512 3513 return scnprintf(buf, PAGE_SIZE, "%d\n", 3514 pring ? pring->txq_max : 0); 3515 } 3516 3517 static DEVICE_ATTR(txq_hw, S_IRUGO, 3518 lpfc_txq_hw_show, NULL); 3519 static ssize_t 3520 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3521 char *buf) 3522 { 3523 struct Scsi_Host *shost = class_to_shost(dev); 3524 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3525 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3526 3527 return scnprintf(buf, PAGE_SIZE, "%d\n", 3528 pring ? pring->txcmplq_max : 0); 3529 } 3530 3531 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3532 lpfc_txcmplq_hw_show, NULL); 3533 3534 /* 3535 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3536 # until the timer expires. Value range is [0,255]. Default value is 30. 3537 */ 3538 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3539 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3540 module_param(lpfc_nodev_tmo, int, 0); 3541 MODULE_PARM_DESC(lpfc_nodev_tmo, 3542 "Seconds driver will hold I/O waiting " 3543 "for a device to come back"); 3544 3545 /** 3546 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3547 * @dev: class converted to a Scsi_host structure. 3548 * @attr: device attribute, not used. 3549 * @buf: on return contains the dev loss timeout in decimal. 3550 * 3551 * Returns: size of formatted string. 3552 **/ 3553 static ssize_t 3554 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3555 char *buf) 3556 { 3557 struct Scsi_Host *shost = class_to_shost(dev); 3558 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3559 3560 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3561 } 3562 3563 /** 3564 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3565 * @vport: lpfc vport structure pointer. 3566 * @val: contains the nodev timeout value. 3567 * 3568 * Description: 3569 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3570 * a kernel error message is printed and zero is returned. 3571 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3572 * Otherwise nodev tmo is set to the default value. 3573 * 3574 * Returns: 3575 * zero if already set or if val is in range 3576 * -EINVAL val out of range 3577 **/ 3578 static int 3579 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3580 { 3581 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3582 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3583 if (val != LPFC_DEF_DEVLOSS_TMO) 3584 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3585 "0407 Ignoring lpfc_nodev_tmo module " 3586 "parameter because lpfc_devloss_tmo " 3587 "is set.\n"); 3588 return 0; 3589 } 3590 3591 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3592 vport->cfg_nodev_tmo = val; 3593 vport->cfg_devloss_tmo = val; 3594 return 0; 3595 } 3596 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3597 "0400 lpfc_nodev_tmo attribute cannot be set to" 3598 " %d, allowed range is [%d, %d]\n", 3599 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3600 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3601 return -EINVAL; 3602 } 3603 3604 /** 3605 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3606 * @vport: lpfc vport structure pointer. 3607 * 3608 * Description: 3609 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3610 **/ 3611 static void 3612 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3613 { 3614 struct Scsi_Host *shost; 3615 struct lpfc_nodelist *ndlp; 3616 #if (IS_ENABLED(CONFIG_NVME_FC)) 3617 struct lpfc_nvme_rport *rport; 3618 struct nvme_fc_remote_port *remoteport = NULL; 3619 #endif 3620 3621 shost = lpfc_shost_from_vport(vport); 3622 spin_lock_irq(shost->host_lock); 3623 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3624 if (ndlp->rport) 3625 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3626 #if (IS_ENABLED(CONFIG_NVME_FC)) 3627 spin_lock(&ndlp->lock); 3628 rport = lpfc_ndlp_get_nrport(ndlp); 3629 if (rport) 3630 remoteport = rport->remoteport; 3631 spin_unlock(&ndlp->lock); 3632 if (rport && remoteport) 3633 nvme_fc_set_remoteport_devloss(remoteport, 3634 vport->cfg_devloss_tmo); 3635 #endif 3636 } 3637 spin_unlock_irq(shost->host_lock); 3638 } 3639 3640 /** 3641 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3642 * @vport: lpfc vport structure pointer. 3643 * @val: contains the tmo value. 3644 * 3645 * Description: 3646 * If the devloss tmo is already set or the vport dev loss tmo has changed 3647 * then a kernel error message is printed and zero is returned. 3648 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3649 * Otherwise nodev tmo is set to the default value. 3650 * 3651 * Returns: 3652 * zero if already set or if val is in range 3653 * -EINVAL val out of range 3654 **/ 3655 static int 3656 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3657 { 3658 if (vport->dev_loss_tmo_changed || 3659 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3660 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3661 "0401 Ignoring change to lpfc_nodev_tmo " 3662 "because lpfc_devloss_tmo is set.\n"); 3663 return 0; 3664 } 3665 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3666 vport->cfg_nodev_tmo = val; 3667 vport->cfg_devloss_tmo = val; 3668 /* 3669 * For compat: set the fc_host dev loss so new rports 3670 * will get the value. 3671 */ 3672 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3673 lpfc_update_rport_devloss_tmo(vport); 3674 return 0; 3675 } 3676 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3677 "0403 lpfc_nodev_tmo attribute cannot be set to " 3678 "%d, allowed range is [%d, %d]\n", 3679 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3680 return -EINVAL; 3681 } 3682 3683 lpfc_vport_param_store(nodev_tmo) 3684 3685 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3686 3687 /* 3688 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3689 # disappear until the timer expires. Value range is [0,255]. Default 3690 # value is 30. 3691 */ 3692 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3693 MODULE_PARM_DESC(lpfc_devloss_tmo, 3694 "Seconds driver will hold I/O waiting " 3695 "for a device to come back"); 3696 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3697 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3698 lpfc_vport_param_show(devloss_tmo) 3699 3700 /** 3701 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3702 * @vport: lpfc vport structure pointer. 3703 * @val: contains the tmo value. 3704 * 3705 * Description: 3706 * If val is in a valid range then set the vport nodev tmo, 3707 * devloss tmo, also set the vport dev loss tmo changed flag. 3708 * Else a kernel error message is printed. 3709 * 3710 * Returns: 3711 * zero if val is in range 3712 * -EINVAL val out of range 3713 **/ 3714 static int 3715 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3716 { 3717 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3718 vport->cfg_nodev_tmo = val; 3719 vport->cfg_devloss_tmo = val; 3720 vport->dev_loss_tmo_changed = 1; 3721 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3722 lpfc_update_rport_devloss_tmo(vport); 3723 return 0; 3724 } 3725 3726 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3727 "0404 lpfc_devloss_tmo attribute cannot be set to " 3728 "%d, allowed range is [%d, %d]\n", 3729 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3730 return -EINVAL; 3731 } 3732 3733 lpfc_vport_param_store(devloss_tmo) 3734 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3735 3736 /* 3737 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3738 * lpfc_suppress_rsp = 0 Disable 3739 * lpfc_suppress_rsp = 1 Enable (default) 3740 * 3741 */ 3742 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3743 "Enable suppress rsp feature is firmware supports it"); 3744 3745 /* 3746 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3747 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3748 * lpfc_nvmet_mrq = 1 use a single RQ pair 3749 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3750 * 3751 */ 3752 LPFC_ATTR_R(nvmet_mrq, 3753 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3754 "Specify number of RQ pairs for processing NVMET cmds"); 3755 3756 /* 3757 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3758 * to each NVMET RQ. Range 64 to 2048, default is 512. 3759 */ 3760 LPFC_ATTR_R(nvmet_mrq_post, 3761 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3762 LPFC_NVMET_RQE_DEF_COUNT, 3763 "Specify number of RQ buffers to initially post"); 3764 3765 /* 3766 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3767 * Supported Values: 1 - register just FCP 3768 * 3 - register both FCP and NVME 3769 * Supported values are [1,3]. Default value is 3 3770 */ 3771 LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, 3772 LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, 3773 "Enable FC4 Protocol support - FCP / NVME"); 3774 3775 /* 3776 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3777 # deluged with LOTS of information. 3778 # You can set a bit mask to record specific types of verbose messages: 3779 # See lpfc_logmsh.h for definitions. 3780 */ 3781 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3782 "Verbose logging bit-mask"); 3783 3784 /* 3785 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3786 # objects that have been registered with the nameserver after login. 3787 */ 3788 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3789 "Deregister nameserver objects before LOGO"); 3790 3791 /* 3792 # lun_queue_depth: This parameter is used to limit the number of outstanding 3793 # commands per FCP LUN. 3794 */ 3795 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3796 "Max number of FCP commands we can queue to a specific LUN"); 3797 3798 /* 3799 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3800 # commands per target port. Value range is [10,65535]. Default value is 65535. 3801 */ 3802 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3803 module_param(lpfc_tgt_queue_depth, uint, 0444); 3804 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3805 lpfc_vport_param_show(tgt_queue_depth); 3806 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3807 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3808 3809 /** 3810 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3811 * @vport: lpfc vport structure pointer. 3812 * @val: integer attribute value. 3813 * 3814 * Description: Sets the parameter to the new value. 3815 * 3816 * Returns: 3817 * zero on success 3818 * -EINVAL if val is invalid 3819 */ 3820 static int 3821 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3822 { 3823 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3824 struct lpfc_nodelist *ndlp; 3825 3826 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3827 return -EINVAL; 3828 3829 if (val == vport->cfg_tgt_queue_depth) 3830 return 0; 3831 3832 spin_lock_irq(shost->host_lock); 3833 vport->cfg_tgt_queue_depth = val; 3834 3835 /* Next loop thru nodelist and change cmd_qdepth */ 3836 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3837 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3838 3839 spin_unlock_irq(shost->host_lock); 3840 return 0; 3841 } 3842 3843 lpfc_vport_param_store(tgt_queue_depth); 3844 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3845 3846 /* 3847 # hba_queue_depth: This parameter is used to limit the number of outstanding 3848 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3849 # value is greater than the maximum number of exchanges supported by the HBA, 3850 # then maximum number of exchanges supported by the HBA is used to determine 3851 # the hba_queue_depth. 3852 */ 3853 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3854 "Max number of FCP commands we can queue to a lpfc HBA"); 3855 3856 /* 3857 # peer_port_login: This parameter allows/prevents logins 3858 # between peer ports hosted on the same physical port. 3859 # When this parameter is set 0 peer ports of same physical port 3860 # are not allowed to login to each other. 3861 # When this parameter is set 1 peer ports of same physical port 3862 # are allowed to login to each other. 3863 # Default value of this parameter is 0. 3864 */ 3865 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3866 "Allow peer ports on the same physical port to login to each " 3867 "other."); 3868 3869 /* 3870 # restrict_login: This parameter allows/prevents logins 3871 # between Virtual Ports and remote initiators. 3872 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3873 # other initiators and will attempt to PLOGI all remote ports. 3874 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3875 # remote ports and will not attempt to PLOGI to other initiators. 3876 # This parameter does not restrict to the physical port. 3877 # This parameter does not restrict logins to Fabric resident remote ports. 3878 # Default value of this parameter is 1. 3879 */ 3880 static int lpfc_restrict_login = 1; 3881 module_param(lpfc_restrict_login, int, S_IRUGO); 3882 MODULE_PARM_DESC(lpfc_restrict_login, 3883 "Restrict virtual ports login to remote initiators."); 3884 lpfc_vport_param_show(restrict_login); 3885 3886 /** 3887 * lpfc_restrict_login_init - Set the vport restrict login flag 3888 * @vport: lpfc vport structure pointer. 3889 * @val: contains the restrict login value. 3890 * 3891 * Description: 3892 * If val is not in a valid range then log a kernel error message and set 3893 * the vport restrict login to one. 3894 * If the port type is physical clear the restrict login flag and return. 3895 * Else set the restrict login flag to val. 3896 * 3897 * Returns: 3898 * zero if val is in range 3899 * -EINVAL val out of range 3900 **/ 3901 static int 3902 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3903 { 3904 if (val < 0 || val > 1) { 3905 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3906 "0422 lpfc_restrict_login attribute cannot " 3907 "be set to %d, allowed range is [0, 1]\n", 3908 val); 3909 vport->cfg_restrict_login = 1; 3910 return -EINVAL; 3911 } 3912 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3913 vport->cfg_restrict_login = 0; 3914 return 0; 3915 } 3916 vport->cfg_restrict_login = val; 3917 return 0; 3918 } 3919 3920 /** 3921 * lpfc_restrict_login_set - Set the vport restrict login flag 3922 * @vport: lpfc vport structure pointer. 3923 * @val: contains the restrict login value. 3924 * 3925 * Description: 3926 * If val is not in a valid range then log a kernel error message and set 3927 * the vport restrict login to one. 3928 * If the port type is physical and the val is not zero log a kernel 3929 * error message, clear the restrict login flag and return zero. 3930 * Else set the restrict login flag to val. 3931 * 3932 * Returns: 3933 * zero if val is in range 3934 * -EINVAL val out of range 3935 **/ 3936 static int 3937 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3938 { 3939 if (val < 0 || val > 1) { 3940 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3941 "0425 lpfc_restrict_login attribute cannot " 3942 "be set to %d, allowed range is [0, 1]\n", 3943 val); 3944 vport->cfg_restrict_login = 1; 3945 return -EINVAL; 3946 } 3947 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3948 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3949 "0468 lpfc_restrict_login must be 0 for " 3950 "Physical ports.\n"); 3951 vport->cfg_restrict_login = 0; 3952 return 0; 3953 } 3954 vport->cfg_restrict_login = val; 3955 return 0; 3956 } 3957 lpfc_vport_param_store(restrict_login); 3958 static DEVICE_ATTR_RW(lpfc_restrict_login); 3959 3960 /* 3961 # Some disk devices have a "select ID" or "select Target" capability. 3962 # From a protocol standpoint "select ID" usually means select the 3963 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3964 # annex" which contains a table that maps a "select ID" (a number 3965 # between 0 and 7F) to an ALPA. By default, for compatibility with 3966 # older drivers, the lpfc driver scans this table from low ALPA to high 3967 # ALPA. 3968 # 3969 # Turning on the scan-down variable (on = 1, off = 0) will 3970 # cause the lpfc driver to use an inverted table, effectively 3971 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3972 # 3973 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3974 # and will not work across a fabric. Also this parameter will take 3975 # effect only in the case when ALPA map is not available.) 3976 */ 3977 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3978 "Start scanning for devices from highest ALPA to lowest"); 3979 3980 /* 3981 # lpfc_topology: link topology for init link 3982 # 0x0 = attempt loop mode then point-to-point 3983 # 0x01 = internal loopback mode 3984 # 0x02 = attempt point-to-point mode only 3985 # 0x04 = attempt loop mode only 3986 # 0x06 = attempt point-to-point mode then loop 3987 # Set point-to-point mode if you want to run as an N_Port. 3988 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3989 # Default value is 0. 3990 */ 3991 LPFC_ATTR(topology, 0, 0, 6, 3992 "Select Fibre Channel topology"); 3993 3994 /** 3995 * lpfc_topology_store - Set the adapters topology field 3996 * @dev: class device that is converted into a scsi_host. 3997 * @attr:device attribute, not used. 3998 * @buf: buffer for passing information. 3999 * @count: size of the data buffer. 4000 * 4001 * Description: 4002 * If val is in a valid range then set the adapter's topology field and 4003 * issue a lip; if the lip fails reset the topology to the old value. 4004 * 4005 * If the value is not in range log a kernel error message and return an error. 4006 * 4007 * Returns: 4008 * zero if val is in range and lip okay 4009 * non-zero return value from lpfc_issue_lip() 4010 * -EINVAL val out of range 4011 **/ 4012 static ssize_t 4013 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4014 const char *buf, size_t count) 4015 { 4016 struct Scsi_Host *shost = class_to_shost(dev); 4017 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4018 struct lpfc_hba *phba = vport->phba; 4019 int val = 0; 4020 int nolip = 0; 4021 const char *val_buf = buf; 4022 int err; 4023 uint32_t prev_val; 4024 u8 sli_family, if_type; 4025 4026 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4027 nolip = 1; 4028 val_buf = &buf[strlen("nolip ")]; 4029 } 4030 4031 if (!isdigit(val_buf[0])) 4032 return -EINVAL; 4033 if (sscanf(val_buf, "%i", &val) != 1) 4034 return -EINVAL; 4035 4036 if (val >= 0 && val <= 6) { 4037 prev_val = phba->cfg_topology; 4038 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4039 val == 4) { 4040 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4041 "3113 Loop mode not supported at speed %d\n", 4042 val); 4043 return -EINVAL; 4044 } 4045 /* 4046 * The 'topology' is not a configurable parameter if : 4047 * - persistent topology enabled 4048 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4049 */ 4050 sli_family = bf_get(lpfc_sli_intf_sli_family, 4051 &phba->sli4_hba.sli_intf); 4052 if_type = bf_get(lpfc_sli_intf_if_type, 4053 &phba->sli4_hba.sli_intf); 4054 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4055 (!phba->sli4_hba.pc_sli4_params.pls && 4056 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4057 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4058 val == 4) { 4059 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4060 "3114 Loop mode not supported\n"); 4061 return -EINVAL; 4062 } 4063 phba->cfg_topology = val; 4064 if (nolip) 4065 return strlen(buf); 4066 4067 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4068 "3054 lpfc_topology changed from %d to %d\n", 4069 prev_val, val); 4070 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4071 phba->fc_topology_changed = 1; 4072 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4073 if (err) { 4074 phba->cfg_topology = prev_val; 4075 return -EINVAL; 4076 } else 4077 return strlen(buf); 4078 } 4079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4080 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4081 "allowed range is [0, 6]\n", 4082 phba->brd_no, val); 4083 return -EINVAL; 4084 } 4085 4086 lpfc_param_show(topology) 4087 static DEVICE_ATTR_RW(lpfc_topology); 4088 4089 /** 4090 * lpfc_static_vport_show: Read callback function for 4091 * lpfc_static_vport sysfs file. 4092 * @dev: Pointer to class device object. 4093 * @attr: device attribute structure. 4094 * @buf: Data buffer. 4095 * 4096 * This function is the read call back function for 4097 * lpfc_static_vport sysfs file. The lpfc_static_vport 4098 * sysfs file report the mageability of the vport. 4099 **/ 4100 static ssize_t 4101 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4102 char *buf) 4103 { 4104 struct Scsi_Host *shost = class_to_shost(dev); 4105 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4106 if (vport->vport_flag & STATIC_VPORT) 4107 sprintf(buf, "1\n"); 4108 else 4109 sprintf(buf, "0\n"); 4110 4111 return strlen(buf); 4112 } 4113 4114 /* 4115 * Sysfs attribute to control the statistical data collection. 4116 */ 4117 static DEVICE_ATTR_RO(lpfc_static_vport); 4118 4119 /** 4120 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4121 * @dev: Pointer to class device. 4122 * @attr: Unused. 4123 * @buf: Data buffer. 4124 * @count: Size of the data buffer. 4125 * 4126 * This function get called when a user write to the lpfc_stat_data_ctrl 4127 * sysfs file. This function parse the command written to the sysfs file 4128 * and take appropriate action. These commands are used for controlling 4129 * driver statistical data collection. 4130 * Following are the command this function handles. 4131 * 4132 * setbucket <bucket_type> <base> <step> 4133 * = Set the latency buckets. 4134 * destroybucket = destroy all the buckets. 4135 * start = start data collection 4136 * stop = stop data collection 4137 * reset = reset the collected data 4138 **/ 4139 static ssize_t 4140 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4141 const char *buf, size_t count) 4142 { 4143 struct Scsi_Host *shost = class_to_shost(dev); 4144 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4145 struct lpfc_hba *phba = vport->phba; 4146 #define LPFC_MAX_DATA_CTRL_LEN 1024 4147 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4148 unsigned long i; 4149 char *str_ptr, *token; 4150 struct lpfc_vport **vports; 4151 struct Scsi_Host *v_shost; 4152 char *bucket_type_str, *base_str, *step_str; 4153 unsigned long base, step, bucket_type; 4154 4155 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4156 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4157 return -EINVAL; 4158 4159 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4160 str_ptr = &bucket_data[0]; 4161 /* Ignore this token - this is command token */ 4162 token = strsep(&str_ptr, "\t "); 4163 if (!token) 4164 return -EINVAL; 4165 4166 bucket_type_str = strsep(&str_ptr, "\t "); 4167 if (!bucket_type_str) 4168 return -EINVAL; 4169 4170 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4171 bucket_type = LPFC_LINEAR_BUCKET; 4172 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4173 bucket_type = LPFC_POWER2_BUCKET; 4174 else 4175 return -EINVAL; 4176 4177 base_str = strsep(&str_ptr, "\t "); 4178 if (!base_str) 4179 return -EINVAL; 4180 base = simple_strtoul(base_str, NULL, 0); 4181 4182 step_str = strsep(&str_ptr, "\t "); 4183 if (!step_str) 4184 return -EINVAL; 4185 step = simple_strtoul(step_str, NULL, 0); 4186 if (!step) 4187 return -EINVAL; 4188 4189 /* Block the data collection for every vport */ 4190 vports = lpfc_create_vport_work_array(phba); 4191 if (vports == NULL) 4192 return -ENOMEM; 4193 4194 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4195 v_shost = lpfc_shost_from_vport(vports[i]); 4196 spin_lock_irq(v_shost->host_lock); 4197 /* Block and reset data collection */ 4198 vports[i]->stat_data_blocked = 1; 4199 if (vports[i]->stat_data_enabled) 4200 lpfc_vport_reset_stat_data(vports[i]); 4201 spin_unlock_irq(v_shost->host_lock); 4202 } 4203 4204 /* Set the bucket attributes */ 4205 phba->bucket_type = bucket_type; 4206 phba->bucket_base = base; 4207 phba->bucket_step = step; 4208 4209 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4210 v_shost = lpfc_shost_from_vport(vports[i]); 4211 4212 /* Unblock data collection */ 4213 spin_lock_irq(v_shost->host_lock); 4214 vports[i]->stat_data_blocked = 0; 4215 spin_unlock_irq(v_shost->host_lock); 4216 } 4217 lpfc_destroy_vport_work_array(phba, vports); 4218 return strlen(buf); 4219 } 4220 4221 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4222 vports = lpfc_create_vport_work_array(phba); 4223 if (vports == NULL) 4224 return -ENOMEM; 4225 4226 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4227 v_shost = lpfc_shost_from_vport(vports[i]); 4228 spin_lock_irq(shost->host_lock); 4229 vports[i]->stat_data_blocked = 1; 4230 lpfc_free_bucket(vport); 4231 vport->stat_data_enabled = 0; 4232 vports[i]->stat_data_blocked = 0; 4233 spin_unlock_irq(shost->host_lock); 4234 } 4235 lpfc_destroy_vport_work_array(phba, vports); 4236 phba->bucket_type = LPFC_NO_BUCKET; 4237 phba->bucket_base = 0; 4238 phba->bucket_step = 0; 4239 return strlen(buf); 4240 } 4241 4242 if (!strncmp(buf, "start", strlen("start"))) { 4243 /* If no buckets configured return error */ 4244 if (phba->bucket_type == LPFC_NO_BUCKET) 4245 return -EINVAL; 4246 spin_lock_irq(shost->host_lock); 4247 if (vport->stat_data_enabled) { 4248 spin_unlock_irq(shost->host_lock); 4249 return strlen(buf); 4250 } 4251 lpfc_alloc_bucket(vport); 4252 vport->stat_data_enabled = 1; 4253 spin_unlock_irq(shost->host_lock); 4254 return strlen(buf); 4255 } 4256 4257 if (!strncmp(buf, "stop", strlen("stop"))) { 4258 spin_lock_irq(shost->host_lock); 4259 if (vport->stat_data_enabled == 0) { 4260 spin_unlock_irq(shost->host_lock); 4261 return strlen(buf); 4262 } 4263 lpfc_free_bucket(vport); 4264 vport->stat_data_enabled = 0; 4265 spin_unlock_irq(shost->host_lock); 4266 return strlen(buf); 4267 } 4268 4269 if (!strncmp(buf, "reset", strlen("reset"))) { 4270 if ((phba->bucket_type == LPFC_NO_BUCKET) 4271 || !vport->stat_data_enabled) 4272 return strlen(buf); 4273 spin_lock_irq(shost->host_lock); 4274 vport->stat_data_blocked = 1; 4275 lpfc_vport_reset_stat_data(vport); 4276 vport->stat_data_blocked = 0; 4277 spin_unlock_irq(shost->host_lock); 4278 return strlen(buf); 4279 } 4280 return -EINVAL; 4281 } 4282 4283 4284 /** 4285 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4286 * @dev: Pointer to class device. 4287 * @attr: Unused. 4288 * @buf: Data buffer. 4289 * 4290 * This function is the read call back function for 4291 * lpfc_stat_data_ctrl sysfs file. This function report the 4292 * current statistical data collection state. 4293 **/ 4294 static ssize_t 4295 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4296 char *buf) 4297 { 4298 struct Scsi_Host *shost = class_to_shost(dev); 4299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4300 struct lpfc_hba *phba = vport->phba; 4301 int index = 0; 4302 int i; 4303 char *bucket_type; 4304 unsigned long bucket_value; 4305 4306 switch (phba->bucket_type) { 4307 case LPFC_LINEAR_BUCKET: 4308 bucket_type = "linear"; 4309 break; 4310 case LPFC_POWER2_BUCKET: 4311 bucket_type = "power2"; 4312 break; 4313 default: 4314 bucket_type = "No Bucket"; 4315 break; 4316 } 4317 4318 sprintf(&buf[index], "Statistical Data enabled :%d, " 4319 "blocked :%d, Bucket type :%s, Bucket base :%d," 4320 " Bucket step :%d\nLatency Ranges :", 4321 vport->stat_data_enabled, vport->stat_data_blocked, 4322 bucket_type, phba->bucket_base, phba->bucket_step); 4323 index = strlen(buf); 4324 if (phba->bucket_type != LPFC_NO_BUCKET) { 4325 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4326 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4327 bucket_value = phba->bucket_base + 4328 phba->bucket_step * i; 4329 else 4330 bucket_value = phba->bucket_base + 4331 (1 << i) * phba->bucket_step; 4332 4333 if (index + 10 > PAGE_SIZE) 4334 break; 4335 sprintf(&buf[index], "%08ld ", bucket_value); 4336 index = strlen(buf); 4337 } 4338 } 4339 sprintf(&buf[index], "\n"); 4340 return strlen(buf); 4341 } 4342 4343 /* 4344 * Sysfs attribute to control the statistical data collection. 4345 */ 4346 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4347 4348 /* 4349 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4350 */ 4351 4352 /* 4353 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4354 * for each target. 4355 */ 4356 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4357 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4358 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4359 4360 4361 /** 4362 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4363 * @filp: sysfs file 4364 * @kobj: Pointer to the kernel object 4365 * @bin_attr: Attribute object 4366 * @buf: Buffer pointer 4367 * @off: File offset 4368 * @count: Buffer size 4369 * 4370 * This function is the read call back function for lpfc_drvr_stat_data 4371 * sysfs file. This function export the statistical data to user 4372 * applications. 4373 **/ 4374 static ssize_t 4375 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4376 struct bin_attribute *bin_attr, 4377 char *buf, loff_t off, size_t count) 4378 { 4379 struct device *dev = container_of(kobj, struct device, 4380 kobj); 4381 struct Scsi_Host *shost = class_to_shost(dev); 4382 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4383 struct lpfc_hba *phba = vport->phba; 4384 int i = 0, index = 0; 4385 unsigned long nport_index; 4386 struct lpfc_nodelist *ndlp = NULL; 4387 nport_index = (unsigned long)off / 4388 MAX_STAT_DATA_SIZE_PER_TARGET; 4389 4390 if (!vport->stat_data_enabled || vport->stat_data_blocked 4391 || (phba->bucket_type == LPFC_NO_BUCKET)) 4392 return 0; 4393 4394 spin_lock_irq(shost->host_lock); 4395 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4396 if (!ndlp->lat_data) 4397 continue; 4398 4399 if (nport_index > 0) { 4400 nport_index--; 4401 continue; 4402 } 4403 4404 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4405 > count) 4406 break; 4407 4408 if (!ndlp->lat_data) 4409 continue; 4410 4411 /* Print the WWN */ 4412 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4413 ndlp->nlp_portname.u.wwn[0], 4414 ndlp->nlp_portname.u.wwn[1], 4415 ndlp->nlp_portname.u.wwn[2], 4416 ndlp->nlp_portname.u.wwn[3], 4417 ndlp->nlp_portname.u.wwn[4], 4418 ndlp->nlp_portname.u.wwn[5], 4419 ndlp->nlp_portname.u.wwn[6], 4420 ndlp->nlp_portname.u.wwn[7]); 4421 4422 index = strlen(buf); 4423 4424 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4425 sprintf(&buf[index], "%010u,", 4426 ndlp->lat_data[i].cmd_count); 4427 index = strlen(buf); 4428 } 4429 sprintf(&buf[index], "\n"); 4430 index = strlen(buf); 4431 } 4432 spin_unlock_irq(shost->host_lock); 4433 return index; 4434 } 4435 4436 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4437 .attr = { 4438 .name = "lpfc_drvr_stat_data", 4439 .mode = S_IRUSR, 4440 }, 4441 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4442 .read = sysfs_drvr_stat_data_read, 4443 .write = NULL, 4444 }; 4445 4446 /* 4447 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4448 # connection. 4449 # Value range is [0,16]. Default value is 0. 4450 */ 4451 /** 4452 * lpfc_link_speed_store - Set the adapters link speed 4453 * @dev: Pointer to class device. 4454 * @attr: Unused. 4455 * @buf: Data buffer. 4456 * @count: Size of the data buffer. 4457 * 4458 * Description: 4459 * If val is in a valid range then set the adapter's link speed field and 4460 * issue a lip; if the lip fails reset the link speed to the old value. 4461 * 4462 * Notes: 4463 * If the value is not in range log a kernel error message and return an error. 4464 * 4465 * Returns: 4466 * zero if val is in range and lip okay. 4467 * non-zero return value from lpfc_issue_lip() 4468 * -EINVAL val out of range 4469 **/ 4470 static ssize_t 4471 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4472 const char *buf, size_t count) 4473 { 4474 struct Scsi_Host *shost = class_to_shost(dev); 4475 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4476 struct lpfc_hba *phba = vport->phba; 4477 int val = LPFC_USER_LINK_SPEED_AUTO; 4478 int nolip = 0; 4479 const char *val_buf = buf; 4480 int err; 4481 uint32_t prev_val, if_type; 4482 4483 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4484 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4485 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4486 return -EPERM; 4487 4488 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4489 nolip = 1; 4490 val_buf = &buf[strlen("nolip ")]; 4491 } 4492 4493 if (!isdigit(val_buf[0])) 4494 return -EINVAL; 4495 if (sscanf(val_buf, "%i", &val) != 1) 4496 return -EINVAL; 4497 4498 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4499 "3055 lpfc_link_speed changed from %d to %d %s\n", 4500 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4501 4502 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4503 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4504 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4505 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4506 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4507 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4508 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4509 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4511 "2879 lpfc_link_speed attribute cannot be set " 4512 "to %d. Speed is not supported by this port.\n", 4513 val); 4514 return -EINVAL; 4515 } 4516 if (val >= LPFC_USER_LINK_SPEED_16G && 4517 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4519 "3112 lpfc_link_speed attribute cannot be set " 4520 "to %d. Speed is not supported in loop mode.\n", 4521 val); 4522 return -EINVAL; 4523 } 4524 4525 switch (val) { 4526 case LPFC_USER_LINK_SPEED_AUTO: 4527 case LPFC_USER_LINK_SPEED_1G: 4528 case LPFC_USER_LINK_SPEED_2G: 4529 case LPFC_USER_LINK_SPEED_4G: 4530 case LPFC_USER_LINK_SPEED_8G: 4531 case LPFC_USER_LINK_SPEED_16G: 4532 case LPFC_USER_LINK_SPEED_32G: 4533 case LPFC_USER_LINK_SPEED_64G: 4534 prev_val = phba->cfg_link_speed; 4535 phba->cfg_link_speed = val; 4536 if (nolip) 4537 return strlen(buf); 4538 4539 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4540 if (err) { 4541 phba->cfg_link_speed = prev_val; 4542 return -EINVAL; 4543 } 4544 return strlen(buf); 4545 default: 4546 break; 4547 } 4548 4549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4550 "0469 lpfc_link_speed attribute cannot be set to %d, " 4551 "allowed values are [%s]\n", 4552 val, LPFC_LINK_SPEED_STRING); 4553 return -EINVAL; 4554 4555 } 4556 4557 static int lpfc_link_speed = 0; 4558 module_param(lpfc_link_speed, int, S_IRUGO); 4559 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4560 lpfc_param_show(link_speed) 4561 4562 /** 4563 * lpfc_link_speed_init - Set the adapters link speed 4564 * @phba: lpfc_hba pointer. 4565 * @val: link speed value. 4566 * 4567 * Description: 4568 * If val is in a valid range then set the adapter's link speed field. 4569 * 4570 * Notes: 4571 * If the value is not in range log a kernel error message, clear the link 4572 * speed and return an error. 4573 * 4574 * Returns: 4575 * zero if val saved. 4576 * -EINVAL val out of range 4577 **/ 4578 static int 4579 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4580 { 4581 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4583 "3111 lpfc_link_speed of %d cannot " 4584 "support loop mode, setting topology to default.\n", 4585 val); 4586 phba->cfg_topology = 0; 4587 } 4588 4589 switch (val) { 4590 case LPFC_USER_LINK_SPEED_AUTO: 4591 case LPFC_USER_LINK_SPEED_1G: 4592 case LPFC_USER_LINK_SPEED_2G: 4593 case LPFC_USER_LINK_SPEED_4G: 4594 case LPFC_USER_LINK_SPEED_8G: 4595 case LPFC_USER_LINK_SPEED_16G: 4596 case LPFC_USER_LINK_SPEED_32G: 4597 case LPFC_USER_LINK_SPEED_64G: 4598 phba->cfg_link_speed = val; 4599 return 0; 4600 default: 4601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4602 "0405 lpfc_link_speed attribute cannot " 4603 "be set to %d, allowed values are " 4604 "["LPFC_LINK_SPEED_STRING"]\n", val); 4605 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4606 return -EINVAL; 4607 } 4608 } 4609 4610 static DEVICE_ATTR_RW(lpfc_link_speed); 4611 4612 /* 4613 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4614 # 0 = aer disabled or not supported 4615 # 1 = aer supported and enabled (default) 4616 # Value range is [0,1]. Default value is 1. 4617 */ 4618 LPFC_ATTR(aer_support, 1, 0, 1, 4619 "Enable PCIe device AER support"); 4620 lpfc_param_show(aer_support) 4621 4622 /** 4623 * lpfc_aer_support_store - Set the adapter for aer support 4624 * 4625 * @dev: class device that is converted into a Scsi_host. 4626 * @attr: device attribute, not used. 4627 * @buf: containing enable or disable aer flag. 4628 * @count: unused variable. 4629 * 4630 * Description: 4631 * If the val is 1 and currently the device's AER capability was not 4632 * enabled, invoke the kernel's enable AER helper routine, trying to 4633 * enable the device's AER capability. If the helper routine enabling 4634 * AER returns success, update the device's cfg_aer_support flag to 4635 * indicate AER is supported by the device; otherwise, if the device 4636 * AER capability is already enabled to support AER, then do nothing. 4637 * 4638 * If the val is 0 and currently the device's AER support was enabled, 4639 * invoke the kernel's disable AER helper routine. After that, update 4640 * the device's cfg_aer_support flag to indicate AER is not supported 4641 * by the device; otherwise, if the device AER capability is already 4642 * disabled from supporting AER, then do nothing. 4643 * 4644 * Returns: 4645 * length of the buf on success if val is in range the intended mode 4646 * is supported. 4647 * -EINVAL if val out of range or intended mode is not supported. 4648 **/ 4649 static ssize_t 4650 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4651 const char *buf, size_t count) 4652 { 4653 struct Scsi_Host *shost = class_to_shost(dev); 4654 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4655 struct lpfc_hba *phba = vport->phba; 4656 int val = 0, rc = -EINVAL; 4657 4658 if (!isdigit(buf[0])) 4659 return -EINVAL; 4660 if (sscanf(buf, "%i", &val) != 1) 4661 return -EINVAL; 4662 4663 switch (val) { 4664 case 0: 4665 if (phba->hba_flag & HBA_AER_ENABLED) { 4666 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4667 if (!rc) { 4668 spin_lock_irq(&phba->hbalock); 4669 phba->hba_flag &= ~HBA_AER_ENABLED; 4670 spin_unlock_irq(&phba->hbalock); 4671 phba->cfg_aer_support = 0; 4672 rc = strlen(buf); 4673 } else 4674 rc = -EPERM; 4675 } else { 4676 phba->cfg_aer_support = 0; 4677 rc = strlen(buf); 4678 } 4679 break; 4680 case 1: 4681 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4682 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4683 if (!rc) { 4684 spin_lock_irq(&phba->hbalock); 4685 phba->hba_flag |= HBA_AER_ENABLED; 4686 spin_unlock_irq(&phba->hbalock); 4687 phba->cfg_aer_support = 1; 4688 rc = strlen(buf); 4689 } else 4690 rc = -EPERM; 4691 } else { 4692 phba->cfg_aer_support = 1; 4693 rc = strlen(buf); 4694 } 4695 break; 4696 default: 4697 rc = -EINVAL; 4698 break; 4699 } 4700 return rc; 4701 } 4702 4703 static DEVICE_ATTR_RW(lpfc_aer_support); 4704 4705 /** 4706 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4707 * @dev: class device that is converted into a Scsi_host. 4708 * @attr: device attribute, not used. 4709 * @buf: containing flag 1 for aer cleanup state. 4710 * @count: unused variable. 4711 * 4712 * Description: 4713 * If the @buf contains 1 and the device currently has the AER support 4714 * enabled, then invokes the kernel AER helper routine 4715 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4716 * error status register. 4717 * 4718 * Notes: 4719 * 4720 * Returns: 4721 * -EINVAL if the buf does not contain the 1 or the device is not currently 4722 * enabled with the AER support. 4723 **/ 4724 static ssize_t 4725 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4726 const char *buf, size_t count) 4727 { 4728 struct Scsi_Host *shost = class_to_shost(dev); 4729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4730 struct lpfc_hba *phba = vport->phba; 4731 int val, rc = -1; 4732 4733 if (!isdigit(buf[0])) 4734 return -EINVAL; 4735 if (sscanf(buf, "%i", &val) != 1) 4736 return -EINVAL; 4737 if (val != 1) 4738 return -EINVAL; 4739 4740 if (phba->hba_flag & HBA_AER_ENABLED) 4741 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4742 4743 if (rc == 0) 4744 return strlen(buf); 4745 else 4746 return -EPERM; 4747 } 4748 4749 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4750 lpfc_aer_cleanup_state); 4751 4752 /** 4753 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4754 * 4755 * @dev: class device that is converted into a Scsi_host. 4756 * @attr: device attribute, not used. 4757 * @buf: containing the string the number of vfs to be enabled. 4758 * @count: unused variable. 4759 * 4760 * Description: 4761 * When this api is called either through user sysfs, the driver shall 4762 * try to enable or disable SR-IOV virtual functions according to the 4763 * following: 4764 * 4765 * If zero virtual function has been enabled to the physical function, 4766 * the driver shall invoke the pci enable virtual function api trying 4767 * to enable the virtual functions. If the nr_vfn provided is greater 4768 * than the maximum supported, the maximum virtual function number will 4769 * be used for invoking the api; otherwise, the nr_vfn provided shall 4770 * be used for invoking the api. If the api call returned success, the 4771 * actual number of virtual functions enabled will be set to the driver 4772 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4773 * cfg_sriov_nr_virtfn remains zero. 4774 * 4775 * If none-zero virtual functions have already been enabled to the 4776 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4777 * -EINVAL will be returned and the driver does nothing; 4778 * 4779 * If the nr_vfn provided is zero and none-zero virtual functions have 4780 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4781 * disabling virtual function api shall be invoded to disable all the 4782 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4783 * zero. Otherwise, if zero virtual function has been enabled, do 4784 * nothing. 4785 * 4786 * Returns: 4787 * length of the buf on success if val is in range the intended mode 4788 * is supported. 4789 * -EINVAL if val out of range or intended mode is not supported. 4790 **/ 4791 static ssize_t 4792 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4793 const char *buf, size_t count) 4794 { 4795 struct Scsi_Host *shost = class_to_shost(dev); 4796 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4797 struct lpfc_hba *phba = vport->phba; 4798 struct pci_dev *pdev = phba->pcidev; 4799 int val = 0, rc = -EINVAL; 4800 4801 /* Sanity check on user data */ 4802 if (!isdigit(buf[0])) 4803 return -EINVAL; 4804 if (sscanf(buf, "%i", &val) != 1) 4805 return -EINVAL; 4806 if (val < 0) 4807 return -EINVAL; 4808 4809 /* Request disabling virtual functions */ 4810 if (val == 0) { 4811 if (phba->cfg_sriov_nr_virtfn > 0) { 4812 pci_disable_sriov(pdev); 4813 phba->cfg_sriov_nr_virtfn = 0; 4814 } 4815 return strlen(buf); 4816 } 4817 4818 /* Request enabling virtual functions */ 4819 if (phba->cfg_sriov_nr_virtfn > 0) { 4820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4821 "3018 There are %d virtual functions " 4822 "enabled on physical function.\n", 4823 phba->cfg_sriov_nr_virtfn); 4824 return -EEXIST; 4825 } 4826 4827 if (val <= LPFC_MAX_VFN_PER_PFN) 4828 phba->cfg_sriov_nr_virtfn = val; 4829 else { 4830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4831 "3019 Enabling %d virtual functions is not " 4832 "allowed.\n", val); 4833 return -EINVAL; 4834 } 4835 4836 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4837 if (rc) { 4838 phba->cfg_sriov_nr_virtfn = 0; 4839 rc = -EPERM; 4840 } else 4841 rc = strlen(buf); 4842 4843 return rc; 4844 } 4845 4846 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4847 "Enable PCIe device SR-IOV virtual fn"); 4848 4849 lpfc_param_show(sriov_nr_virtfn) 4850 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4851 4852 /** 4853 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4854 * 4855 * @dev: class device that is converted into a Scsi_host. 4856 * @attr: device attribute, not used. 4857 * @buf: containing the string the number of vfs to be enabled. 4858 * @count: unused variable. 4859 * 4860 * Description: 4861 * 4862 * Returns: 4863 * length of the buf on success if val is in range the intended mode 4864 * is supported. 4865 * -EINVAL if val out of range or intended mode is not supported. 4866 **/ 4867 static ssize_t 4868 lpfc_request_firmware_upgrade_store(struct device *dev, 4869 struct device_attribute *attr, 4870 const char *buf, size_t count) 4871 { 4872 struct Scsi_Host *shost = class_to_shost(dev); 4873 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4874 struct lpfc_hba *phba = vport->phba; 4875 int val = 0, rc; 4876 4877 /* Sanity check on user data */ 4878 if (!isdigit(buf[0])) 4879 return -EINVAL; 4880 if (sscanf(buf, "%i", &val) != 1) 4881 return -EINVAL; 4882 if (val != 1) 4883 return -EINVAL; 4884 4885 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4886 if (rc) 4887 rc = -EPERM; 4888 else 4889 rc = strlen(buf); 4890 return rc; 4891 } 4892 4893 static int lpfc_req_fw_upgrade; 4894 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4895 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4896 lpfc_param_show(request_firmware_upgrade) 4897 4898 /** 4899 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4900 * @phba: lpfc_hba pointer. 4901 * @val: 0 or 1. 4902 * 4903 * Description: 4904 * Set the initial Linux generic firmware upgrade enable or disable flag. 4905 * 4906 * Returns: 4907 * zero if val saved. 4908 * -EINVAL val out of range 4909 **/ 4910 static int 4911 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4912 { 4913 if (val >= 0 && val <= 1) { 4914 phba->cfg_request_firmware_upgrade = val; 4915 return 0; 4916 } 4917 return -EINVAL; 4918 } 4919 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4920 lpfc_request_firmware_upgrade_show, 4921 lpfc_request_firmware_upgrade_store); 4922 4923 /** 4924 * lpfc_force_rscn_store 4925 * 4926 * @dev: class device that is converted into a Scsi_host. 4927 * @attr: device attribute, not used. 4928 * @buf: unused string 4929 * @count: unused variable. 4930 * 4931 * Description: 4932 * Force the switch to send a RSCN to all other NPorts in our zone 4933 * If we are direct connect pt2pt, build the RSCN command ourself 4934 * and send to the other NPort. Not supported for private loop. 4935 * 4936 * Returns: 4937 * 0 - on success 4938 * -EIO - if command is not sent 4939 **/ 4940 static ssize_t 4941 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4942 const char *buf, size_t count) 4943 { 4944 struct Scsi_Host *shost = class_to_shost(dev); 4945 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4946 int i; 4947 4948 i = lpfc_issue_els_rscn(vport, 0); 4949 if (i) 4950 return -EIO; 4951 return strlen(buf); 4952 } 4953 4954 /* 4955 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4956 * connected to the HBA. 4957 * 4958 * Value range is any ascii value 4959 */ 4960 static int lpfc_force_rscn; 4961 module_param(lpfc_force_rscn, int, 0644); 4962 MODULE_PARM_DESC(lpfc_force_rscn, 4963 "Force an RSCN to be sent to all remote NPorts"); 4964 lpfc_param_show(force_rscn) 4965 4966 /** 4967 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4968 * @phba: lpfc_hba pointer. 4969 * @val: unused value. 4970 * 4971 * Returns: 4972 * zero if val saved. 4973 **/ 4974 static int 4975 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4976 { 4977 return 0; 4978 } 4979 static DEVICE_ATTR_RW(lpfc_force_rscn); 4980 4981 /** 4982 * lpfc_fcp_imax_store 4983 * 4984 * @dev: class device that is converted into a Scsi_host. 4985 * @attr: device attribute, not used. 4986 * @buf: string with the number of fast-path FCP interrupts per second. 4987 * @count: unused variable. 4988 * 4989 * Description: 4990 * If val is in a valid range [636,651042], then set the adapter's 4991 * maximum number of fast-path FCP interrupts per second. 4992 * 4993 * Returns: 4994 * length of the buf on success if val is in range the intended mode 4995 * is supported. 4996 * -EINVAL if val out of range or intended mode is not supported. 4997 **/ 4998 static ssize_t 4999 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5000 const char *buf, size_t count) 5001 { 5002 struct Scsi_Host *shost = class_to_shost(dev); 5003 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5004 struct lpfc_hba *phba = vport->phba; 5005 struct lpfc_eq_intr_info *eqi; 5006 uint32_t usdelay; 5007 int val = 0, i; 5008 5009 /* fcp_imax is only valid for SLI4 */ 5010 if (phba->sli_rev != LPFC_SLI_REV4) 5011 return -EINVAL; 5012 5013 /* Sanity check on user data */ 5014 if (!isdigit(buf[0])) 5015 return -EINVAL; 5016 if (sscanf(buf, "%i", &val) != 1) 5017 return -EINVAL; 5018 5019 /* 5020 * Value range for the HBA is [5000,5000000] 5021 * The value for each EQ depends on how many EQs are configured. 5022 * Allow value == 0 5023 */ 5024 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5025 return -EINVAL; 5026 5027 phba->cfg_auto_imax = (val) ? 0 : 1; 5028 if (phba->cfg_fcp_imax && !val) { 5029 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5030 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5031 5032 for_each_present_cpu(i) { 5033 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5034 eqi->icnt = 0; 5035 } 5036 } 5037 5038 phba->cfg_fcp_imax = (uint32_t)val; 5039 5040 if (phba->cfg_fcp_imax) 5041 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5042 else 5043 usdelay = 0; 5044 5045 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5046 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5047 usdelay); 5048 5049 return strlen(buf); 5050 } 5051 5052 /* 5053 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5054 # for the HBA. 5055 # 5056 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5057 */ 5058 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5059 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5060 MODULE_PARM_DESC(lpfc_fcp_imax, 5061 "Set the maximum number of FCP interrupts per second per HBA"); 5062 lpfc_param_show(fcp_imax) 5063 5064 /** 5065 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5066 * @phba: lpfc_hba pointer. 5067 * @val: link speed value. 5068 * 5069 * Description: 5070 * If val is in a valid range [636,651042], then initialize the adapter's 5071 * maximum number of fast-path FCP interrupts per second. 5072 * 5073 * Returns: 5074 * zero if val saved. 5075 * -EINVAL val out of range 5076 **/ 5077 static int 5078 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5079 { 5080 if (phba->sli_rev != LPFC_SLI_REV4) { 5081 phba->cfg_fcp_imax = 0; 5082 return 0; 5083 } 5084 5085 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5086 (val == 0)) { 5087 phba->cfg_fcp_imax = val; 5088 return 0; 5089 } 5090 5091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5092 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5093 val); 5094 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5095 5096 return 0; 5097 } 5098 5099 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5100 5101 /** 5102 * lpfc_cq_max_proc_limit_store 5103 * 5104 * @dev: class device that is converted into a Scsi_host. 5105 * @attr: device attribute, not used. 5106 * @buf: string with the cq max processing limit of cqes 5107 * @count: unused variable. 5108 * 5109 * Description: 5110 * If val is in a valid range, then set value on each cq 5111 * 5112 * Returns: 5113 * The length of the buf: if successful 5114 * -ERANGE: if val is not in the valid range 5115 * -EINVAL: if bad value format or intended mode is not supported. 5116 **/ 5117 static ssize_t 5118 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5119 const char *buf, size_t count) 5120 { 5121 struct Scsi_Host *shost = class_to_shost(dev); 5122 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5123 struct lpfc_hba *phba = vport->phba; 5124 struct lpfc_queue *eq, *cq; 5125 unsigned long val; 5126 int i; 5127 5128 /* cq_max_proc_limit is only valid for SLI4 */ 5129 if (phba->sli_rev != LPFC_SLI_REV4) 5130 return -EINVAL; 5131 5132 /* Sanity check on user data */ 5133 if (!isdigit(buf[0])) 5134 return -EINVAL; 5135 if (kstrtoul(buf, 0, &val)) 5136 return -EINVAL; 5137 5138 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5139 return -ERANGE; 5140 5141 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5142 5143 /* set the values on the cq's */ 5144 for (i = 0; i < phba->cfg_irq_chann; i++) { 5145 /* Get the EQ corresponding to the IRQ vector */ 5146 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5147 if (!eq) 5148 continue; 5149 5150 list_for_each_entry(cq, &eq->child_list, list) 5151 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5152 cq->entry_count); 5153 } 5154 5155 return strlen(buf); 5156 } 5157 5158 /* 5159 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5160 * itteration of CQ processing. 5161 */ 5162 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5163 module_param(lpfc_cq_max_proc_limit, int, 0644); 5164 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5165 "Set the maximum number CQEs processed in an iteration of " 5166 "CQ processing"); 5167 lpfc_param_show(cq_max_proc_limit) 5168 5169 /* 5170 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5171 * single handler call which should request a polled completion rather 5172 * than re-enabling interrupts. 5173 */ 5174 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5175 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5176 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5177 "CQE Processing Threshold to enable Polling"); 5178 5179 /** 5180 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5181 * @phba: lpfc_hba pointer. 5182 * @val: entry limit 5183 * 5184 * Description: 5185 * If val is in a valid range, then initialize the adapter's maximum 5186 * value. 5187 * 5188 * Returns: 5189 * Always returns 0 for success, even if value not always set to 5190 * requested value. If value out of range or not supported, will fall 5191 * back to default. 5192 **/ 5193 static int 5194 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5195 { 5196 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5197 5198 if (phba->sli_rev != LPFC_SLI_REV4) 5199 return 0; 5200 5201 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5202 phba->cfg_cq_max_proc_limit = val; 5203 return 0; 5204 } 5205 5206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5207 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 5208 "default\n", 5209 phba->cfg_cq_max_proc_limit); 5210 5211 return 0; 5212 } 5213 5214 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5215 5216 /** 5217 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5218 * @dev: class converted to a Scsi_host structure. 5219 * @attr: device attribute, not used. 5220 * @buf: on return contains text describing the state of the link. 5221 * 5222 * Returns: size of formatted string. 5223 **/ 5224 static ssize_t 5225 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5226 char *buf) 5227 { 5228 struct Scsi_Host *shost = class_to_shost(dev); 5229 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5230 struct lpfc_hba *phba = vport->phba; 5231 struct lpfc_vector_map_info *cpup; 5232 int len = 0; 5233 5234 if ((phba->sli_rev != LPFC_SLI_REV4) || 5235 (phba->intr_type != MSIX)) 5236 return len; 5237 5238 switch (phba->cfg_fcp_cpu_map) { 5239 case 0: 5240 len += scnprintf(buf + len, PAGE_SIZE-len, 5241 "fcp_cpu_map: No mapping (%d)\n", 5242 phba->cfg_fcp_cpu_map); 5243 return len; 5244 case 1: 5245 len += scnprintf(buf + len, PAGE_SIZE-len, 5246 "fcp_cpu_map: HBA centric mapping (%d): " 5247 "%d of %d CPUs online from %d possible CPUs\n", 5248 phba->cfg_fcp_cpu_map, num_online_cpus(), 5249 num_present_cpus(), 5250 phba->sli4_hba.num_possible_cpu); 5251 break; 5252 } 5253 5254 while (phba->sli4_hba.curr_disp_cpu < 5255 phba->sli4_hba.num_possible_cpu) { 5256 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5257 5258 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5259 len += scnprintf(buf + len, PAGE_SIZE - len, 5260 "CPU %02d not present\n", 5261 phba->sli4_hba.curr_disp_cpu); 5262 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5263 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5264 len += scnprintf( 5265 buf + len, PAGE_SIZE - len, 5266 "CPU %02d hdwq None " 5267 "physid %d coreid %d ht %d ua %d\n", 5268 phba->sli4_hba.curr_disp_cpu, 5269 cpup->phys_id, cpup->core_id, 5270 (cpup->flag & LPFC_CPU_MAP_HYPER), 5271 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5272 else 5273 len += scnprintf( 5274 buf + len, PAGE_SIZE - len, 5275 "CPU %02d EQ None hdwq %04d " 5276 "physid %d coreid %d ht %d ua %d\n", 5277 phba->sli4_hba.curr_disp_cpu, 5278 cpup->hdwq, cpup->phys_id, 5279 cpup->core_id, 5280 (cpup->flag & LPFC_CPU_MAP_HYPER), 5281 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5282 } else { 5283 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5284 len += scnprintf( 5285 buf + len, PAGE_SIZE - len, 5286 "CPU %02d hdwq None " 5287 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5288 phba->sli4_hba.curr_disp_cpu, 5289 cpup->phys_id, 5290 cpup->core_id, 5291 (cpup->flag & LPFC_CPU_MAP_HYPER), 5292 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5293 lpfc_get_irq(cpup->eq)); 5294 else 5295 len += scnprintf( 5296 buf + len, PAGE_SIZE - len, 5297 "CPU %02d EQ %04d hdwq %04d " 5298 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5299 phba->sli4_hba.curr_disp_cpu, 5300 cpup->eq, cpup->hdwq, cpup->phys_id, 5301 cpup->core_id, 5302 (cpup->flag & LPFC_CPU_MAP_HYPER), 5303 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5304 lpfc_get_irq(cpup->eq)); 5305 } 5306 5307 phba->sli4_hba.curr_disp_cpu++; 5308 5309 /* display max number of CPUs keeping some margin */ 5310 if (phba->sli4_hba.curr_disp_cpu < 5311 phba->sli4_hba.num_possible_cpu && 5312 (len >= (PAGE_SIZE - 64))) { 5313 len += scnprintf(buf + len, 5314 PAGE_SIZE - len, "more...\n"); 5315 break; 5316 } 5317 } 5318 5319 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5320 phba->sli4_hba.curr_disp_cpu = 0; 5321 5322 return len; 5323 } 5324 5325 /** 5326 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5327 * @dev: class device that is converted into a Scsi_host. 5328 * @attr: device attribute, not used. 5329 * @buf: one or more lpfc_polling_flags values. 5330 * @count: not used. 5331 * 5332 * Returns: 5333 * -EINVAL - Not implemented yet. 5334 **/ 5335 static ssize_t 5336 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5337 const char *buf, size_t count) 5338 { 5339 return -EINVAL; 5340 } 5341 5342 /* 5343 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5344 # for the HBA. 5345 # 5346 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5347 # 0 - Do not affinitze IRQ vectors 5348 # 1 - Affintize HBA vectors with respect to each HBA 5349 # (start with CPU0 for each HBA) 5350 # This also defines how Hardware Queues are mapped to specific CPUs. 5351 */ 5352 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5353 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5354 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5355 "Defines how to map CPUs to IRQ vectors per HBA"); 5356 5357 /** 5358 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5359 * @phba: lpfc_hba pointer. 5360 * @val: link speed value. 5361 * 5362 * Description: 5363 * If val is in a valid range [0-2], then affinitze the adapter's 5364 * MSIX vectors. 5365 * 5366 * Returns: 5367 * zero if val saved. 5368 * -EINVAL val out of range 5369 **/ 5370 static int 5371 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5372 { 5373 if (phba->sli_rev != LPFC_SLI_REV4) { 5374 phba->cfg_fcp_cpu_map = 0; 5375 return 0; 5376 } 5377 5378 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5379 phba->cfg_fcp_cpu_map = val; 5380 return 0; 5381 } 5382 5383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5384 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5385 "default\n", val); 5386 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5387 5388 return 0; 5389 } 5390 5391 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5392 5393 /* 5394 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5395 # Value range is [2,3]. Default value is 3. 5396 */ 5397 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5398 "Select Fibre Channel class of service for FCP sequences"); 5399 5400 /* 5401 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5402 # is [0,1]. Default value is 1. 5403 */ 5404 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5405 "Use ADISC on rediscovery to authenticate FCP devices"); 5406 5407 /* 5408 # lpfc_first_burst_size: First burst size to use on the NPorts 5409 # that support first burst. 5410 # Value range is [0,65536]. Default value is 0. 5411 */ 5412 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5413 "First burst size for Targets that support first burst"); 5414 5415 /* 5416 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5417 * When the driver is configured as an NVME target, this value is 5418 * communicated to the NVME initiator in the PRLI response. It is 5419 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5420 * parameters are set and the target is sending the PRLI RSP. 5421 * Parameter supported on physical port only - no NPIV support. 5422 * Value range is [0,65536]. Default value is 0. 5423 */ 5424 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5425 "NVME Target mode first burst size in 512B increments."); 5426 5427 /* 5428 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5429 * For the Initiator (I), enabling this parameter means that an NVMET 5430 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5431 * processed by the initiator for subsequent NVME FCP IO. 5432 * Currently, this feature is not supported on the NVME target 5433 * Value range is [0,1]. Default value is 0 (disabled). 5434 */ 5435 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5436 "Enable First Burst feature for NVME Initiator."); 5437 5438 /* 5439 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5440 # depth. Default value is 0. When the value of this parameter is zero the 5441 # SCSI command completion time is not used for controlling I/O queue depth. When 5442 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5443 # to limit the I/O completion time to the parameter value. 5444 # The value is set in milliseconds. 5445 */ 5446 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5447 "Use command completion time to control queue depth"); 5448 5449 lpfc_vport_param_show(max_scsicmpl_time); 5450 static int 5451 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5452 { 5453 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5454 struct lpfc_nodelist *ndlp, *next_ndlp; 5455 5456 if (val == vport->cfg_max_scsicmpl_time) 5457 return 0; 5458 if ((val < 0) || (val > 60000)) 5459 return -EINVAL; 5460 vport->cfg_max_scsicmpl_time = val; 5461 5462 spin_lock_irq(shost->host_lock); 5463 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5464 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5465 continue; 5466 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5467 } 5468 spin_unlock_irq(shost->host_lock); 5469 return 0; 5470 } 5471 lpfc_vport_param_store(max_scsicmpl_time); 5472 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5473 5474 /* 5475 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5476 # range is [0,1]. Default value is 0. 5477 */ 5478 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5479 5480 /* 5481 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5482 # range is [0,1]. Default value is 1. 5483 */ 5484 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5485 5486 /* 5487 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5488 * range is [0,1]. Default value is 0. 5489 * For [0], FCP commands are issued to Work Queues based on upper layer 5490 * hardware queue index. 5491 * For [1], FCP commands are issued to a Work Queue associated with the 5492 * current CPU. 5493 * 5494 * LPFC_FCP_SCHED_BY_HDWQ == 0 5495 * LPFC_FCP_SCHED_BY_CPU == 1 5496 * 5497 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5498 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5499 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5500 * through WQs will be used. 5501 */ 5502 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5503 LPFC_FCP_SCHED_BY_HDWQ, 5504 LPFC_FCP_SCHED_BY_CPU, 5505 "Determine scheduling algorithm for " 5506 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5507 5508 /* 5509 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5510 * range is [0,1]. Default value is 0. 5511 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5512 * For [1], GID_PT is used for NameServer queries after RSCN 5513 * 5514 */ 5515 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5516 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5517 "Determine algorithm NameServer queries after RSCN " 5518 "[0] - GID_FT, [1] - GID_PT"); 5519 5520 /* 5521 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5522 # range is [0,1]. Default value is 0. 5523 # For [0], bus reset issues target reset to ALL devices 5524 # For [1], bus reset issues target reset to non-FCP2 devices 5525 */ 5526 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5527 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5528 5529 5530 /* 5531 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5532 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5533 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5534 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5535 # cr_delay is set to 0. 5536 */ 5537 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5538 "interrupt response is generated"); 5539 5540 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5541 "interrupt response is generated"); 5542 5543 /* 5544 # lpfc_multi_ring_support: Determines how many rings to spread available 5545 # cmd/rsp IOCB entries across. 5546 # Value range is [1,2]. Default value is 1. 5547 */ 5548 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5549 "SLI rings to spread IOCB entries across"); 5550 5551 /* 5552 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5553 # identifies what rctl value to configure the additional ring for. 5554 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5555 */ 5556 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5557 255, "Identifies RCTL for additional ring configuration"); 5558 5559 /* 5560 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5561 # identifies what type value to configure the additional ring for. 5562 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5563 */ 5564 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5565 255, "Identifies TYPE for additional ring configuration"); 5566 5567 /* 5568 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5569 # 0 = SmartSAN functionality disabled (default) 5570 # 1 = SmartSAN functionality enabled 5571 # This parameter will override the value of lpfc_fdmi_on module parameter. 5572 # Value range is [0,1]. Default value is 0. 5573 */ 5574 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5575 5576 /* 5577 # lpfc_fdmi_on: Controls FDMI support. 5578 # 0 No FDMI support 5579 # 1 Traditional FDMI support (default) 5580 # Traditional FDMI support means the driver will assume FDMI-2 support; 5581 # however, if that fails, it will fallback to FDMI-1. 5582 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5583 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5584 # lpfc_fdmi_on. 5585 # Value range [0,1]. Default value is 1. 5586 */ 5587 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5588 5589 /* 5590 # Specifies the maximum number of ELS cmds we can have outstanding (for 5591 # discovery). Value range is [1,64]. Default value = 32. 5592 */ 5593 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5594 "during discovery"); 5595 5596 /* 5597 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5598 # will be scanned by the SCSI midlayer when sequential scanning is 5599 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5600 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5601 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5602 # above. The lpfc driver limits the default value to 255 for two reasons. 5603 # As it bounds the sequential scan loop, scanning for thousands of luns 5604 # on a target can take minutes of wall clock time. Additionally, 5605 # there are FC targets, such as JBODs, that only recognize 8-bits of 5606 # LUN ID. When they receive a value greater than 8 bits, they chop off 5607 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5608 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5609 # valid responses at each of the LUN IDs, to believe there are multiple 5610 # devices present, when in fact, there is only 1. 5611 # A customer that is aware of their target behaviors, and the results as 5612 # indicated above, is welcome to increase the lpfc_max_luns value. 5613 # As mentioned, this value is not used by the lpfc driver, only the 5614 # SCSI midlayer. 5615 # Value range is [0,65535]. Default value is 255. 5616 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5617 */ 5618 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5619 5620 /* 5621 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5622 # Value range is [1,255], default value is 10. 5623 */ 5624 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5625 "Milliseconds driver will wait between polling FCP ring"); 5626 5627 /* 5628 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5629 # to complete in seconds. Value range is [5,180], default value is 60. 5630 */ 5631 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5632 "Maximum time to wait for task management commands to complete"); 5633 /* 5634 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5635 # support this feature 5636 # 0 = MSI disabled 5637 # 1 = MSI enabled 5638 # 2 = MSI-X enabled (default) 5639 # Value range is [0,2]. Default value is 2. 5640 */ 5641 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5642 "MSI-X (2), if possible"); 5643 5644 /* 5645 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5646 * 5647 * 0 = NVME OAS disabled 5648 * 1 = NVME OAS enabled 5649 * 5650 * Value range is [0,1]. Default value is 0. 5651 */ 5652 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5653 "Use OAS bit on NVME IOs"); 5654 5655 /* 5656 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5657 * 5658 * 0 = Put NVME Command in SGL 5659 * 1 = Embed NVME Command in WQE (unless G7) 5660 * 2 = Embed NVME Command in WQE (force) 5661 * 5662 * Value range is [0,2]. Default value is 1. 5663 */ 5664 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5665 "Embed NVME Command in WQE"); 5666 5667 /* 5668 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5669 * the driver will advertise it supports to the SCSI layer. 5670 * 5671 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5672 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5673 * 5674 * Value range is [0,256]. Default value is 8. 5675 */ 5676 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5677 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5678 "Set the number of SCSI Queues advertised"); 5679 5680 /* 5681 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5682 * will advertise it supports to the NVME and SCSI layers. This also 5683 * will map to the number of CQ/WQ pairs the driver will create. 5684 * 5685 * The NVME Layer will try to create this many, plus 1 administrative 5686 * hardware queue. The administrative queue will always map to WQ 0 5687 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5688 * 5689 * 0 = Configure the number of hdw queues to the number of active CPUs. 5690 * 1,256 = Manually specify how many hdw queues to use. 5691 * 5692 * Value range is [0,256]. Default value is 0. 5693 */ 5694 LPFC_ATTR_R(hdw_queue, 5695 LPFC_HBA_HDWQ_DEF, 5696 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5697 "Set the number of I/O Hardware Queues"); 5698 5699 #if IS_ENABLED(CONFIG_X86) 5700 /** 5701 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5702 * irq_chann_mode 5703 * @phba: Pointer to HBA context object. 5704 **/ 5705 static void 5706 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5707 { 5708 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5709 const struct cpumask *sibling_mask; 5710 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5711 5712 cpumask_clear(aff_mask); 5713 5714 if (phba->irq_chann_mode == NUMA_MODE) { 5715 /* Check if we're a NUMA architecture */ 5716 numa_node = dev_to_node(&phba->pcidev->dev); 5717 if (numa_node == NUMA_NO_NODE) { 5718 phba->irq_chann_mode = NORMAL_MODE; 5719 return; 5720 } 5721 } 5722 5723 for_each_possible_cpu(cpu) { 5724 switch (phba->irq_chann_mode) { 5725 case NUMA_MODE: 5726 if (cpu_to_node(cpu) == numa_node) 5727 cpumask_set_cpu(cpu, aff_mask); 5728 break; 5729 case NHT_MODE: 5730 sibling_mask = topology_sibling_cpumask(cpu); 5731 first_cpu = cpumask_first(sibling_mask); 5732 if (first_cpu < nr_cpu_ids) 5733 cpumask_set_cpu(first_cpu, aff_mask); 5734 break; 5735 default: 5736 break; 5737 } 5738 } 5739 } 5740 #endif 5741 5742 static void 5743 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5744 { 5745 #if IS_ENABLED(CONFIG_X86) 5746 switch (boot_cpu_data.x86_vendor) { 5747 case X86_VENDOR_AMD: 5748 /* If AMD architecture, then default is NUMA_MODE */ 5749 phba->irq_chann_mode = NUMA_MODE; 5750 break; 5751 case X86_VENDOR_INTEL: 5752 /* If Intel architecture, then default is no hyperthread mode */ 5753 phba->irq_chann_mode = NHT_MODE; 5754 break; 5755 default: 5756 phba->irq_chann_mode = NORMAL_MODE; 5757 break; 5758 } 5759 lpfc_cpumask_irq_mode_init(phba); 5760 #else 5761 phba->irq_chann_mode = NORMAL_MODE; 5762 #endif 5763 } 5764 5765 /* 5766 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5767 * for Hardware Queues to utilize. This also will map to the number 5768 * of EQ / MSI-X vectors the driver will create. This should never be 5769 * more than the number of Hardware Queues 5770 * 5771 * 0 = Configure number of IRQ Channels to: 5772 * if AMD architecture, number of CPUs on HBA's NUMA node 5773 * if Intel architecture, number of physical CPUs. 5774 * otherwise, number of active CPUs. 5775 * [1,256] = Manually specify how many IRQ Channels to use. 5776 * 5777 * Value range is [0,256]. Default value is [0]. 5778 */ 5779 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5780 module_param(lpfc_irq_chann, uint, 0444); 5781 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5782 5783 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5784 * @phba: lpfc_hba pointer. 5785 * @val: contains the initial value 5786 * 5787 * Description: 5788 * Validates the initial value is within range and assigns it to the 5789 * adapter. If not in range, an error message is posted and the 5790 * default value is assigned. 5791 * 5792 * Returns: 5793 * zero if value is in range and is set 5794 * -EINVAL if value was out of range 5795 **/ 5796 static int 5797 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5798 { 5799 const struct cpumask *aff_mask; 5800 5801 if (phba->cfg_use_msi != 2) { 5802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5803 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5804 phba->cfg_use_msi); 5805 phba->irq_chann_mode = NORMAL_MODE; 5806 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5807 return 0; 5808 } 5809 5810 /* Check if default setting was passed */ 5811 if (val == LPFC_IRQ_CHANN_DEF && 5812 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5813 phba->sli_rev == LPFC_SLI_REV4) 5814 lpfc_assign_default_irq_chann(phba); 5815 5816 if (phba->irq_chann_mode != NORMAL_MODE) { 5817 aff_mask = &phba->sli4_hba.irq_aff_mask; 5818 5819 if (cpumask_empty(aff_mask)) { 5820 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5821 "8533 Could not identify CPUS for " 5822 "mode %d, ignoring\n", 5823 phba->irq_chann_mode); 5824 phba->irq_chann_mode = NORMAL_MODE; 5825 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5826 } else { 5827 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5828 5829 /* If no hyperthread mode, then set hdwq count to 5830 * aff_mask weight as well 5831 */ 5832 if (phba->irq_chann_mode == NHT_MODE) 5833 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5834 5835 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5836 "8543 lpfc_irq_chann set to %u " 5837 "(mode: %d)\n", phba->cfg_irq_chann, 5838 phba->irq_chann_mode); 5839 } 5840 } else { 5841 if (val > LPFC_IRQ_CHANN_MAX) { 5842 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5843 "8545 lpfc_irq_chann attribute cannot " 5844 "be set to %u, allowed range is " 5845 "[%u,%u]\n", 5846 val, 5847 LPFC_IRQ_CHANN_MIN, 5848 LPFC_IRQ_CHANN_MAX); 5849 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5850 return -EINVAL; 5851 } 5852 if (phba->sli_rev == LPFC_SLI_REV4) { 5853 phba->cfg_irq_chann = val; 5854 } else { 5855 phba->cfg_irq_chann = 2; 5856 phba->cfg_hdw_queue = 1; 5857 } 5858 } 5859 5860 return 0; 5861 } 5862 5863 /** 5864 * lpfc_irq_chann_show - Display value of irq_chann 5865 * @dev: class converted to a Scsi_host structure. 5866 * @attr: device attribute, not used. 5867 * @buf: on return contains a string with the list sizes 5868 * 5869 * Returns: size of formatted string. 5870 **/ 5871 static ssize_t 5872 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5873 char *buf) 5874 { 5875 struct Scsi_Host *shost = class_to_shost(dev); 5876 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5877 struct lpfc_hba *phba = vport->phba; 5878 5879 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5880 } 5881 5882 static DEVICE_ATTR_RO(lpfc_irq_chann); 5883 5884 /* 5885 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5886 # 0 = HBA resets disabled 5887 # 1 = HBA resets enabled (default) 5888 # 2 = HBA reset via PCI bus reset enabled 5889 # Value range is [0,2]. Default value is 1. 5890 */ 5891 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5892 5893 /* 5894 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5895 # 0 = HBA Heartbeat disabled 5896 # 1 = HBA Heartbeat enabled (default) 5897 # Value range is [0,1]. Default value is 1. 5898 */ 5899 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5900 5901 /* 5902 # lpfc_EnableXLane: Enable Express Lane Feature 5903 # 0x0 Express Lane Feature disabled 5904 # 0x1 Express Lane Feature enabled 5905 # Value range is [0,1]. Default value is 0. 5906 */ 5907 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5908 5909 /* 5910 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5911 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5912 # Value range is [0x0,0x7f]. Default value is 0 5913 */ 5914 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5915 5916 /* 5917 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5918 # 0 = BlockGuard disabled (default) 5919 # 1 = BlockGuard enabled 5920 # Value range is [0,1]. Default value is 0. 5921 */ 5922 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5923 5924 /* 5925 # lpfc_prot_mask: 5926 # - Bit mask of host protection capabilities used to register with the 5927 # SCSI mid-layer 5928 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5929 # - Allows you to ultimately specify which profiles to use 5930 # - Default will result in registering capabilities for all profiles. 5931 # - SHOST_DIF_TYPE1_PROTECTION 1 5932 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5933 # - SHOST_DIX_TYPE0_PROTECTION 8 5934 # HBA supports DIX Type 0: Host to HBA protection only 5935 # - SHOST_DIX_TYPE1_PROTECTION 16 5936 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5937 # 5938 */ 5939 LPFC_ATTR(prot_mask, 5940 (SHOST_DIF_TYPE1_PROTECTION | 5941 SHOST_DIX_TYPE0_PROTECTION | 5942 SHOST_DIX_TYPE1_PROTECTION), 5943 0, 5944 (SHOST_DIF_TYPE1_PROTECTION | 5945 SHOST_DIX_TYPE0_PROTECTION | 5946 SHOST_DIX_TYPE1_PROTECTION), 5947 "T10-DIF host protection capabilities mask"); 5948 5949 /* 5950 # lpfc_prot_guard: 5951 # - Bit mask of protection guard types to register with the SCSI mid-layer 5952 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5953 # - Allows you to ultimately specify which profiles to use 5954 # - Default will result in registering capabilities for all guard types 5955 # 5956 */ 5957 LPFC_ATTR(prot_guard, 5958 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5959 "T10-DIF host protection guard type"); 5960 5961 /* 5962 * Delay initial NPort discovery when Clean Address bit is cleared in 5963 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5964 * This parameter can have value 0 or 1. 5965 * When this parameter is set to 0, no delay is added to the initial 5966 * discovery. 5967 * When this parameter is set to non-zero value, initial Nport discovery is 5968 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5969 * accept and FCID/Fabric name/Fabric portname is changed. 5970 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5971 * when Clean Address bit is cleared in FLOGI/FDISC 5972 * accept and FCID/Fabric name/Fabric portname is changed. 5973 * Default value is 0. 5974 */ 5975 LPFC_ATTR(delay_discovery, 0, 0, 1, 5976 "Delay NPort discovery when Clean Address bit is cleared."); 5977 5978 /* 5979 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5980 * This value can be set to values between 64 and 4096. The default value 5981 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5982 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5983 * Because of the additional overhead involved in setting up T10-DIF, 5984 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5985 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5986 */ 5987 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5988 module_param(lpfc_sg_seg_cnt, uint, 0444); 5989 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5990 5991 /** 5992 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5993 * configured for the adapter 5994 * @dev: class converted to a Scsi_host structure. 5995 * @attr: device attribute, not used. 5996 * @buf: on return contains a string with the list sizes 5997 * 5998 * Returns: size of formatted string. 5999 **/ 6000 static ssize_t 6001 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6002 char *buf) 6003 { 6004 struct Scsi_Host *shost = class_to_shost(dev); 6005 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6006 struct lpfc_hba *phba = vport->phba; 6007 int len; 6008 6009 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6010 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6011 6012 len += scnprintf(buf + len, PAGE_SIZE - len, 6013 "Cfg: %d SCSI: %d NVME: %d\n", 6014 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6015 phba->cfg_nvme_seg_cnt); 6016 return len; 6017 } 6018 6019 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6020 6021 /** 6022 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6023 * @phba: lpfc_hba pointer. 6024 * @val: contains the initial value 6025 * 6026 * Description: 6027 * Validates the initial value is within range and assigns it to the 6028 * adapter. If not in range, an error message is posted and the 6029 * default value is assigned. 6030 * 6031 * Returns: 6032 * zero if value is in range and is set 6033 * -EINVAL if value was out of range 6034 **/ 6035 static int 6036 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6037 { 6038 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6039 phba->cfg_sg_seg_cnt = val; 6040 return 0; 6041 } 6042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6043 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 6044 "allowed range is [%d, %d]\n", 6045 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6046 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6047 return -EINVAL; 6048 } 6049 6050 /* 6051 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6052 * 0 = MDS Diagnostics disabled (default) 6053 * 1 = MDS Diagnostics enabled 6054 * Value range is [0,1]. Default value is 0. 6055 */ 6056 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6057 6058 /* 6059 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6060 * 0 = Disable firmware logging (default) 6061 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6062 * Value range [0..4]. Default value is 0 6063 */ 6064 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6065 lpfc_param_show(ras_fwlog_buffsize); 6066 6067 static ssize_t 6068 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6069 { 6070 int ret = 0; 6071 enum ras_state state; 6072 6073 if (!lpfc_rangecheck(val, 0, 4)) 6074 return -EINVAL; 6075 6076 if (phba->cfg_ras_fwlog_buffsize == val) 6077 return 0; 6078 6079 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6080 return -EINVAL; 6081 6082 spin_lock_irq(&phba->hbalock); 6083 state = phba->ras_fwlog.state; 6084 spin_unlock_irq(&phba->hbalock); 6085 6086 if (state == REG_INPROGRESS) { 6087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6088 "registration is in progress\n"); 6089 return -EBUSY; 6090 } 6091 6092 /* For disable logging: stop the logs and free the DMA. 6093 * For ras_fwlog_buffsize size change we still need to free and 6094 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6095 */ 6096 phba->cfg_ras_fwlog_buffsize = val; 6097 if (state == ACTIVE) { 6098 lpfc_ras_stop_fwlog(phba); 6099 lpfc_sli4_ras_dma_free(phba); 6100 } 6101 6102 lpfc_sli4_ras_init(phba); 6103 if (phba->ras_fwlog.ras_enabled) 6104 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6105 LPFC_RAS_ENABLE_LOGGING); 6106 return ret; 6107 } 6108 6109 lpfc_param_store(ras_fwlog_buffsize); 6110 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6111 6112 /* 6113 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6114 * Valid only if firmware logging is enabled 6115 * 0(Least Verbosity) 4 (most verbosity) 6116 * Value range is [0..4]. Default value is 0 6117 */ 6118 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6119 6120 /* 6121 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6122 * Default function which has RAS support : 0 6123 * Value Range is [0..7]. 6124 * FW logging is a global action and enablement is via a specific 6125 * port. 6126 */ 6127 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6128 6129 /* 6130 * lpfc_enable_bbcr: Enable BB Credit Recovery 6131 * 0 = BB Credit Recovery disabled 6132 * 1 = BB Credit Recovery enabled (default) 6133 * Value range is [0,1]. Default value is 1. 6134 */ 6135 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6136 6137 /* Signaling module parameters */ 6138 int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 6139 module_param(lpfc_fabric_cgn_frequency, int, 0444); 6140 MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 6141 6142 int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 6143 module_param(lpfc_acqe_cgn_frequency, int, 0444); 6144 MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 6145 6146 int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 6147 module_param(lpfc_use_cgn_signal, int, 0444); 6148 MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 6149 6150 /* 6151 * lpfc_enable_dpp: Enable DPP on G7 6152 * 0 = DPP on G7 disabled 6153 * 1 = DPP on G7 enabled (default) 6154 * Value range is [0,1]. Default value is 1. 6155 */ 6156 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6157 6158 /* 6159 * lpfc_enable_mi: Enable FDMI MIB 6160 * 0 = disabled 6161 * 1 = enabled (default) 6162 * Value range is [0,1]. 6163 */ 6164 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6165 6166 /* 6167 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 6168 * either vmid_app_header or vmid_priority_tagging is enabled. 6169 * 4 - 255 = vmid support enabled for 4-255 VMs 6170 * Value range is [4,255]. 6171 */ 6172 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 6173 "Maximum number of VMs supported"); 6174 6175 /* 6176 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 6177 * 0 = Timeout is disabled 6178 * Value range is [0,24]. 6179 */ 6180 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 6181 "Inactivity timeout in hours"); 6182 6183 /* 6184 * lpfc_vmid_app_header: Enable App Header VMID support 6185 * 0 = Support is disabled (default) 6186 * 1 = Support is enabled 6187 * Value range is [0,1]. 6188 */ 6189 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 6190 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 6191 "Enable App Header VMID support"); 6192 6193 /* 6194 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 6195 * 0 = Support is disabled (default) 6196 * 1 = Allow supported targets only 6197 * 2 = Allow all targets 6198 * Value range is [0,2]. 6199 */ 6200 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 6201 LPFC_VMID_PRIO_TAG_DISABLE, 6202 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 6203 "Enable Priority Tagging VMID support"); 6204 6205 static struct attribute *lpfc_hba_attrs[] = { 6206 &dev_attr_nvme_info.attr, 6207 &dev_attr_scsi_stat.attr, 6208 &dev_attr_bg_info.attr, 6209 &dev_attr_bg_guard_err.attr, 6210 &dev_attr_bg_apptag_err.attr, 6211 &dev_attr_bg_reftag_err.attr, 6212 &dev_attr_info.attr, 6213 &dev_attr_serialnum.attr, 6214 &dev_attr_modeldesc.attr, 6215 &dev_attr_modelname.attr, 6216 &dev_attr_programtype.attr, 6217 &dev_attr_portnum.attr, 6218 &dev_attr_fwrev.attr, 6219 &dev_attr_hdw.attr, 6220 &dev_attr_option_rom_version.attr, 6221 &dev_attr_link_state.attr, 6222 &dev_attr_num_discovered_ports.attr, 6223 &dev_attr_menlo_mgmt_mode.attr, 6224 &dev_attr_lpfc_drvr_version.attr, 6225 &dev_attr_lpfc_enable_fip.attr, 6226 &dev_attr_lpfc_temp_sensor.attr, 6227 &dev_attr_lpfc_log_verbose.attr, 6228 &dev_attr_lpfc_lun_queue_depth.attr, 6229 &dev_attr_lpfc_tgt_queue_depth.attr, 6230 &dev_attr_lpfc_hba_queue_depth.attr, 6231 &dev_attr_lpfc_peer_port_login.attr, 6232 &dev_attr_lpfc_nodev_tmo.attr, 6233 &dev_attr_lpfc_devloss_tmo.attr, 6234 &dev_attr_lpfc_enable_fc4_type.attr, 6235 &dev_attr_lpfc_fcp_class.attr, 6236 &dev_attr_lpfc_use_adisc.attr, 6237 &dev_attr_lpfc_first_burst_size.attr, 6238 &dev_attr_lpfc_ack0.attr, 6239 &dev_attr_lpfc_xri_rebalancing.attr, 6240 &dev_attr_lpfc_topology.attr, 6241 &dev_attr_lpfc_scan_down.attr, 6242 &dev_attr_lpfc_link_speed.attr, 6243 &dev_attr_lpfc_fcp_io_sched.attr, 6244 &dev_attr_lpfc_ns_query.attr, 6245 &dev_attr_lpfc_fcp2_no_tgt_reset.attr, 6246 &dev_attr_lpfc_cr_delay.attr, 6247 &dev_attr_lpfc_cr_count.attr, 6248 &dev_attr_lpfc_multi_ring_support.attr, 6249 &dev_attr_lpfc_multi_ring_rctl.attr, 6250 &dev_attr_lpfc_multi_ring_type.attr, 6251 &dev_attr_lpfc_fdmi_on.attr, 6252 &dev_attr_lpfc_enable_SmartSAN.attr, 6253 &dev_attr_lpfc_max_luns.attr, 6254 &dev_attr_lpfc_enable_npiv.attr, 6255 &dev_attr_lpfc_fcf_failover_policy.attr, 6256 &dev_attr_lpfc_enable_rrq.attr, 6257 &dev_attr_lpfc_fcp_wait_abts_rsp.attr, 6258 &dev_attr_nport_evt_cnt.attr, 6259 &dev_attr_board_mode.attr, 6260 &dev_attr_max_vpi.attr, 6261 &dev_attr_used_vpi.attr, 6262 &dev_attr_max_rpi.attr, 6263 &dev_attr_used_rpi.attr, 6264 &dev_attr_max_xri.attr, 6265 &dev_attr_used_xri.attr, 6266 &dev_attr_npiv_info.attr, 6267 &dev_attr_issue_reset.attr, 6268 &dev_attr_lpfc_poll.attr, 6269 &dev_attr_lpfc_poll_tmo.attr, 6270 &dev_attr_lpfc_task_mgmt_tmo.attr, 6271 &dev_attr_lpfc_use_msi.attr, 6272 &dev_attr_lpfc_nvme_oas.attr, 6273 &dev_attr_lpfc_nvme_embed_cmd.attr, 6274 &dev_attr_lpfc_fcp_imax.attr, 6275 &dev_attr_lpfc_force_rscn.attr, 6276 &dev_attr_lpfc_cq_poll_threshold.attr, 6277 &dev_attr_lpfc_cq_max_proc_limit.attr, 6278 &dev_attr_lpfc_fcp_cpu_map.attr, 6279 &dev_attr_lpfc_fcp_mq_threshold.attr, 6280 &dev_attr_lpfc_hdw_queue.attr, 6281 &dev_attr_lpfc_irq_chann.attr, 6282 &dev_attr_lpfc_suppress_rsp.attr, 6283 &dev_attr_lpfc_nvmet_mrq.attr, 6284 &dev_attr_lpfc_nvmet_mrq_post.attr, 6285 &dev_attr_lpfc_nvme_enable_fb.attr, 6286 &dev_attr_lpfc_nvmet_fb_size.attr, 6287 &dev_attr_lpfc_enable_bg.attr, 6288 &dev_attr_lpfc_enable_hba_reset.attr, 6289 &dev_attr_lpfc_enable_hba_heartbeat.attr, 6290 &dev_attr_lpfc_EnableXLane.attr, 6291 &dev_attr_lpfc_XLanePriority.attr, 6292 &dev_attr_lpfc_xlane_lun.attr, 6293 &dev_attr_lpfc_xlane_tgt.attr, 6294 &dev_attr_lpfc_xlane_vpt.attr, 6295 &dev_attr_lpfc_xlane_lun_state.attr, 6296 &dev_attr_lpfc_xlane_lun_status.attr, 6297 &dev_attr_lpfc_xlane_priority.attr, 6298 &dev_attr_lpfc_sg_seg_cnt.attr, 6299 &dev_attr_lpfc_max_scsicmpl_time.attr, 6300 &dev_attr_lpfc_stat_data_ctrl.attr, 6301 &dev_attr_lpfc_aer_support.attr, 6302 &dev_attr_lpfc_aer_state_cleanup.attr, 6303 &dev_attr_lpfc_sriov_nr_virtfn.attr, 6304 &dev_attr_lpfc_req_fw_upgrade.attr, 6305 &dev_attr_lpfc_suppress_link_up.attr, 6306 &dev_attr_iocb_hw.attr, 6307 &dev_attr_pls.attr, 6308 &dev_attr_pt.attr, 6309 &dev_attr_txq_hw.attr, 6310 &dev_attr_txcmplq_hw.attr, 6311 &dev_attr_lpfc_sriov_hw_max_virtfn.attr, 6312 &dev_attr_protocol.attr, 6313 &dev_attr_lpfc_xlane_supported.attr, 6314 &dev_attr_lpfc_enable_mds_diags.attr, 6315 &dev_attr_lpfc_ras_fwlog_buffsize.attr, 6316 &dev_attr_lpfc_ras_fwlog_level.attr, 6317 &dev_attr_lpfc_ras_fwlog_func.attr, 6318 &dev_attr_lpfc_enable_bbcr.attr, 6319 &dev_attr_lpfc_enable_dpp.attr, 6320 &dev_attr_lpfc_enable_mi.attr, 6321 &dev_attr_cmf_info.attr, 6322 &dev_attr_lpfc_max_vmid.attr, 6323 &dev_attr_lpfc_vmid_inactivity_timeout.attr, 6324 &dev_attr_lpfc_vmid_app_header.attr, 6325 &dev_attr_lpfc_vmid_priority_tagging.attr, 6326 NULL, 6327 }; 6328 6329 static const struct attribute_group lpfc_hba_attr_group = { 6330 .attrs = lpfc_hba_attrs 6331 }; 6332 6333 const struct attribute_group *lpfc_hba_groups[] = { 6334 &lpfc_hba_attr_group, 6335 NULL 6336 }; 6337 6338 static struct attribute *lpfc_vport_attrs[] = { 6339 &dev_attr_info.attr, 6340 &dev_attr_link_state.attr, 6341 &dev_attr_num_discovered_ports.attr, 6342 &dev_attr_lpfc_drvr_version.attr, 6343 &dev_attr_lpfc_log_verbose.attr, 6344 &dev_attr_lpfc_lun_queue_depth.attr, 6345 &dev_attr_lpfc_tgt_queue_depth.attr, 6346 &dev_attr_lpfc_nodev_tmo.attr, 6347 &dev_attr_lpfc_devloss_tmo.attr, 6348 &dev_attr_lpfc_hba_queue_depth.attr, 6349 &dev_attr_lpfc_peer_port_login.attr, 6350 &dev_attr_lpfc_restrict_login.attr, 6351 &dev_attr_lpfc_fcp_class.attr, 6352 &dev_attr_lpfc_use_adisc.attr, 6353 &dev_attr_lpfc_first_burst_size.attr, 6354 &dev_attr_lpfc_max_luns.attr, 6355 &dev_attr_nport_evt_cnt.attr, 6356 &dev_attr_npiv_info.attr, 6357 &dev_attr_lpfc_enable_da_id.attr, 6358 &dev_attr_lpfc_max_scsicmpl_time.attr, 6359 &dev_attr_lpfc_stat_data_ctrl.attr, 6360 &dev_attr_lpfc_static_vport.attr, 6361 &dev_attr_cmf_info.attr, 6362 NULL, 6363 }; 6364 6365 static const struct attribute_group lpfc_vport_attr_group = { 6366 .attrs = lpfc_vport_attrs 6367 }; 6368 6369 const struct attribute_group *lpfc_vport_groups[] = { 6370 &lpfc_vport_attr_group, 6371 NULL 6372 }; 6373 6374 /** 6375 * sysfs_ctlreg_write - Write method for writing to ctlreg 6376 * @filp: open sysfs file 6377 * @kobj: kernel kobject that contains the kernel class device. 6378 * @bin_attr: kernel attributes passed to us. 6379 * @buf: contains the data to be written to the adapter IOREG space. 6380 * @off: offset into buffer to beginning of data. 6381 * @count: bytes to transfer. 6382 * 6383 * Description: 6384 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6385 * Uses the adapter io control registers to send buf contents to the adapter. 6386 * 6387 * Returns: 6388 * -ERANGE off and count combo out of range 6389 * -EINVAL off, count or buff address invalid 6390 * -EPERM adapter is offline 6391 * value of count, buf contents written 6392 **/ 6393 static ssize_t 6394 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6395 struct bin_attribute *bin_attr, 6396 char *buf, loff_t off, size_t count) 6397 { 6398 size_t buf_off; 6399 struct device *dev = container_of(kobj, struct device, kobj); 6400 struct Scsi_Host *shost = class_to_shost(dev); 6401 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6402 struct lpfc_hba *phba = vport->phba; 6403 6404 if (phba->sli_rev >= LPFC_SLI_REV4) 6405 return -EPERM; 6406 6407 if ((off + count) > FF_REG_AREA_SIZE) 6408 return -ERANGE; 6409 6410 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6411 return 0; 6412 6413 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6414 return -EINVAL; 6415 6416 /* This is to protect HBA registers from accidental writes. */ 6417 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6418 return -EINVAL; 6419 6420 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6421 return -EPERM; 6422 6423 spin_lock_irq(&phba->hbalock); 6424 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6425 buf_off += sizeof(uint32_t)) 6426 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6427 phba->ctrl_regs_memmap_p + off + buf_off); 6428 6429 spin_unlock_irq(&phba->hbalock); 6430 6431 return count; 6432 } 6433 6434 /** 6435 * sysfs_ctlreg_read - Read method for reading from ctlreg 6436 * @filp: open sysfs file 6437 * @kobj: kernel kobject that contains the kernel class device. 6438 * @bin_attr: kernel attributes passed to us. 6439 * @buf: if successful contains the data from the adapter IOREG space. 6440 * @off: offset into buffer to beginning of data. 6441 * @count: bytes to transfer. 6442 * 6443 * Description: 6444 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6445 * Uses the adapter io control registers to read data into buf. 6446 * 6447 * Returns: 6448 * -ERANGE off and count combo out of range 6449 * -EINVAL off, count or buff address invalid 6450 * value of count, buf contents read 6451 **/ 6452 static ssize_t 6453 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6454 struct bin_attribute *bin_attr, 6455 char *buf, loff_t off, size_t count) 6456 { 6457 size_t buf_off; 6458 uint32_t * tmp_ptr; 6459 struct device *dev = container_of(kobj, struct device, kobj); 6460 struct Scsi_Host *shost = class_to_shost(dev); 6461 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6462 struct lpfc_hba *phba = vport->phba; 6463 6464 if (phba->sli_rev >= LPFC_SLI_REV4) 6465 return -EPERM; 6466 6467 if (off > FF_REG_AREA_SIZE) 6468 return -ERANGE; 6469 6470 if ((off + count) > FF_REG_AREA_SIZE) 6471 count = FF_REG_AREA_SIZE - off; 6472 6473 if (count == 0) return 0; 6474 6475 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6476 return -EINVAL; 6477 6478 spin_lock_irq(&phba->hbalock); 6479 6480 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6481 tmp_ptr = (uint32_t *)(buf + buf_off); 6482 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6483 } 6484 6485 spin_unlock_irq(&phba->hbalock); 6486 6487 return count; 6488 } 6489 6490 static struct bin_attribute sysfs_ctlreg_attr = { 6491 .attr = { 6492 .name = "ctlreg", 6493 .mode = S_IRUSR | S_IWUSR, 6494 }, 6495 .size = 256, 6496 .read = sysfs_ctlreg_read, 6497 .write = sysfs_ctlreg_write, 6498 }; 6499 6500 /** 6501 * sysfs_mbox_write - Write method for writing information via mbox 6502 * @filp: open sysfs file 6503 * @kobj: kernel kobject that contains the kernel class device. 6504 * @bin_attr: kernel attributes passed to us. 6505 * @buf: contains the data to be written to sysfs mbox. 6506 * @off: offset into buffer to beginning of data. 6507 * @count: bytes to transfer. 6508 * 6509 * Description: 6510 * Deprecated function. All mailbox access from user space is performed via the 6511 * bsg interface. 6512 * 6513 * Returns: 6514 * -EPERM operation not permitted 6515 **/ 6516 static ssize_t 6517 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6518 struct bin_attribute *bin_attr, 6519 char *buf, loff_t off, size_t count) 6520 { 6521 return -EPERM; 6522 } 6523 6524 /** 6525 * sysfs_mbox_read - Read method for reading information via mbox 6526 * @filp: open sysfs file 6527 * @kobj: kernel kobject that contains the kernel class device. 6528 * @bin_attr: kernel attributes passed to us. 6529 * @buf: contains the data to be read from sysfs mbox. 6530 * @off: offset into buffer to beginning of data. 6531 * @count: bytes to transfer. 6532 * 6533 * Description: 6534 * Deprecated function. All mailbox access from user space is performed via the 6535 * bsg interface. 6536 * 6537 * Returns: 6538 * -EPERM operation not permitted 6539 **/ 6540 static ssize_t 6541 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6542 struct bin_attribute *bin_attr, 6543 char *buf, loff_t off, size_t count) 6544 { 6545 return -EPERM; 6546 } 6547 6548 static struct bin_attribute sysfs_mbox_attr = { 6549 .attr = { 6550 .name = "mbox", 6551 .mode = S_IRUSR | S_IWUSR, 6552 }, 6553 .size = MAILBOX_SYSFS_MAX, 6554 .read = sysfs_mbox_read, 6555 .write = sysfs_mbox_write, 6556 }; 6557 6558 /** 6559 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6560 * @vport: address of lpfc vport structure. 6561 * 6562 * Return codes: 6563 * zero on success 6564 * error return code from sysfs_create_bin_file() 6565 **/ 6566 int 6567 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6568 { 6569 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6570 int error; 6571 6572 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6573 &sysfs_drvr_stat_data_attr); 6574 6575 /* Virtual ports do not need ctrl_reg and mbox */ 6576 if (error || vport->port_type == LPFC_NPIV_PORT) 6577 goto out; 6578 6579 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6580 &sysfs_ctlreg_attr); 6581 if (error) 6582 goto out_remove_stat_attr; 6583 6584 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6585 &sysfs_mbox_attr); 6586 if (error) 6587 goto out_remove_ctlreg_attr; 6588 6589 return 0; 6590 out_remove_ctlreg_attr: 6591 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6592 out_remove_stat_attr: 6593 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6594 &sysfs_drvr_stat_data_attr); 6595 out: 6596 return error; 6597 } 6598 6599 /** 6600 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6601 * @vport: address of lpfc vport structure. 6602 **/ 6603 void 6604 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6605 { 6606 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6607 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6608 &sysfs_drvr_stat_data_attr); 6609 /* Virtual ports do not need ctrl_reg and mbox */ 6610 if (vport->port_type == LPFC_NPIV_PORT) 6611 return; 6612 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6613 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6614 } 6615 6616 /* 6617 * Dynamic FC Host Attributes Support 6618 */ 6619 6620 /** 6621 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6622 * @shost: kernel scsi host pointer. 6623 **/ 6624 static void 6625 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6626 { 6627 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6628 6629 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6630 sizeof fc_host_symbolic_name(shost)); 6631 } 6632 6633 /** 6634 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6635 * @shost: kernel scsi host pointer. 6636 **/ 6637 static void 6638 lpfc_get_host_port_id(struct Scsi_Host *shost) 6639 { 6640 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6641 6642 /* note: fc_myDID already in cpu endianness */ 6643 fc_host_port_id(shost) = vport->fc_myDID; 6644 } 6645 6646 /** 6647 * lpfc_get_host_port_type - Set the value of the scsi host port type 6648 * @shost: kernel scsi host pointer. 6649 **/ 6650 static void 6651 lpfc_get_host_port_type(struct Scsi_Host *shost) 6652 { 6653 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6654 struct lpfc_hba *phba = vport->phba; 6655 6656 spin_lock_irq(shost->host_lock); 6657 6658 if (vport->port_type == LPFC_NPIV_PORT) { 6659 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6660 } else if (lpfc_is_link_up(phba)) { 6661 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6662 if (vport->fc_flag & FC_PUBLIC_LOOP) 6663 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6664 else 6665 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6666 } else { 6667 if (vport->fc_flag & FC_FABRIC) 6668 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6669 else 6670 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6671 } 6672 } else 6673 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6674 6675 spin_unlock_irq(shost->host_lock); 6676 } 6677 6678 /** 6679 * lpfc_get_host_port_state - Set the value of the scsi host port state 6680 * @shost: kernel scsi host pointer. 6681 **/ 6682 static void 6683 lpfc_get_host_port_state(struct Scsi_Host *shost) 6684 { 6685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6686 struct lpfc_hba *phba = vport->phba; 6687 6688 spin_lock_irq(shost->host_lock); 6689 6690 if (vport->fc_flag & FC_OFFLINE_MODE) 6691 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6692 else { 6693 switch (phba->link_state) { 6694 case LPFC_LINK_UNKNOWN: 6695 case LPFC_LINK_DOWN: 6696 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6697 break; 6698 case LPFC_LINK_UP: 6699 case LPFC_CLEAR_LA: 6700 case LPFC_HBA_READY: 6701 /* Links up, reports port state accordingly */ 6702 if (vport->port_state < LPFC_VPORT_READY) 6703 fc_host_port_state(shost) = 6704 FC_PORTSTATE_BYPASSED; 6705 else 6706 fc_host_port_state(shost) = 6707 FC_PORTSTATE_ONLINE; 6708 break; 6709 case LPFC_HBA_ERROR: 6710 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6711 break; 6712 default: 6713 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6714 break; 6715 } 6716 } 6717 6718 spin_unlock_irq(shost->host_lock); 6719 } 6720 6721 /** 6722 * lpfc_get_host_speed - Set the value of the scsi host speed 6723 * @shost: kernel scsi host pointer. 6724 **/ 6725 static void 6726 lpfc_get_host_speed(struct Scsi_Host *shost) 6727 { 6728 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6729 struct lpfc_hba *phba = vport->phba; 6730 6731 spin_lock_irq(shost->host_lock); 6732 6733 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6734 switch(phba->fc_linkspeed) { 6735 case LPFC_LINK_SPEED_1GHZ: 6736 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6737 break; 6738 case LPFC_LINK_SPEED_2GHZ: 6739 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6740 break; 6741 case LPFC_LINK_SPEED_4GHZ: 6742 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6743 break; 6744 case LPFC_LINK_SPEED_8GHZ: 6745 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6746 break; 6747 case LPFC_LINK_SPEED_10GHZ: 6748 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6749 break; 6750 case LPFC_LINK_SPEED_16GHZ: 6751 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6752 break; 6753 case LPFC_LINK_SPEED_32GHZ: 6754 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6755 break; 6756 case LPFC_LINK_SPEED_64GHZ: 6757 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6758 break; 6759 case LPFC_LINK_SPEED_128GHZ: 6760 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6761 break; 6762 case LPFC_LINK_SPEED_256GHZ: 6763 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6764 break; 6765 default: 6766 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6767 break; 6768 } 6769 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6770 switch (phba->fc_linkspeed) { 6771 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6772 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6773 break; 6774 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6775 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6776 break; 6777 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6778 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6779 break; 6780 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6781 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6782 break; 6783 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6784 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6785 break; 6786 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6787 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6788 break; 6789 default: 6790 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6791 break; 6792 } 6793 } else 6794 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6795 6796 spin_unlock_irq(shost->host_lock); 6797 } 6798 6799 /** 6800 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6801 * @shost: kernel scsi host pointer. 6802 **/ 6803 static void 6804 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6805 { 6806 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6807 struct lpfc_hba *phba = vport->phba; 6808 u64 node_name; 6809 6810 spin_lock_irq(shost->host_lock); 6811 6812 if ((vport->port_state > LPFC_FLOGI) && 6813 ((vport->fc_flag & FC_FABRIC) || 6814 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6815 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6816 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6817 else 6818 /* fabric is local port if there is no F/FL_Port */ 6819 node_name = 0; 6820 6821 spin_unlock_irq(shost->host_lock); 6822 6823 fc_host_fabric_name(shost) = node_name; 6824 } 6825 6826 /** 6827 * lpfc_get_stats - Return statistical information about the adapter 6828 * @shost: kernel scsi host pointer. 6829 * 6830 * Notes: 6831 * NULL on error for link down, no mbox pool, sli2 active, 6832 * management not allowed, memory allocation error, or mbox error. 6833 * 6834 * Returns: 6835 * NULL for error 6836 * address of the adapter host statistics 6837 **/ 6838 static struct fc_host_statistics * 6839 lpfc_get_stats(struct Scsi_Host *shost) 6840 { 6841 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6842 struct lpfc_hba *phba = vport->phba; 6843 struct lpfc_sli *psli = &phba->sli; 6844 struct fc_host_statistics *hs = &phba->link_stats; 6845 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6846 LPFC_MBOXQ_t *pmboxq; 6847 MAILBOX_t *pmb; 6848 int rc = 0; 6849 6850 /* 6851 * prevent udev from issuing mailbox commands until the port is 6852 * configured. 6853 */ 6854 if (phba->link_state < LPFC_LINK_DOWN || 6855 !phba->mbox_mem_pool || 6856 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6857 return NULL; 6858 6859 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6860 return NULL; 6861 6862 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6863 if (!pmboxq) 6864 return NULL; 6865 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6866 6867 pmb = &pmboxq->u.mb; 6868 pmb->mbxCommand = MBX_READ_STATUS; 6869 pmb->mbxOwner = OWN_HOST; 6870 pmboxq->ctx_buf = NULL; 6871 pmboxq->vport = vport; 6872 6873 if (vport->fc_flag & FC_OFFLINE_MODE) { 6874 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6875 if (rc != MBX_SUCCESS) { 6876 mempool_free(pmboxq, phba->mbox_mem_pool); 6877 return NULL; 6878 } 6879 } else { 6880 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6881 if (rc != MBX_SUCCESS) { 6882 if (rc != MBX_TIMEOUT) 6883 mempool_free(pmboxq, phba->mbox_mem_pool); 6884 return NULL; 6885 } 6886 } 6887 6888 memset(hs, 0, sizeof (struct fc_host_statistics)); 6889 6890 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6891 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6892 6893 /* 6894 * The MBX_READ_STATUS returns tx_k_bytes which has to be 6895 * converted to words. 6896 * 6897 * Check if extended byte flag is set, to know when to collect upper 6898 * bits of 64 bit wide statistics counter. 6899 */ 6900 if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { 6901 hs->tx_words = (u64) 6902 ((((u64)(pmb->un.varRdStatus.xmit_xkb & 6903 RD_ST_XMIT_XKB_MASK) << 32) | 6904 (u64)pmb->un.varRdStatus.xmitByteCnt) * 6905 (u64)256); 6906 hs->rx_words = (u64) 6907 ((((u64)(pmb->un.varRdStatus.rcv_xkb & 6908 RD_ST_RCV_XKB_MASK) << 32) | 6909 (u64)pmb->un.varRdStatus.rcvByteCnt) * 6910 (u64)256); 6911 } else { 6912 hs->tx_words = (uint64_t) 6913 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6914 * (uint64_t)256); 6915 hs->rx_words = (uint64_t) 6916 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6917 * (uint64_t)256); 6918 } 6919 6920 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6921 pmb->mbxCommand = MBX_READ_LNK_STAT; 6922 pmb->mbxOwner = OWN_HOST; 6923 pmboxq->ctx_buf = NULL; 6924 pmboxq->vport = vport; 6925 6926 if (vport->fc_flag & FC_OFFLINE_MODE) { 6927 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6928 if (rc != MBX_SUCCESS) { 6929 mempool_free(pmboxq, phba->mbox_mem_pool); 6930 return NULL; 6931 } 6932 } else { 6933 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6934 if (rc != MBX_SUCCESS) { 6935 if (rc != MBX_TIMEOUT) 6936 mempool_free(pmboxq, phba->mbox_mem_pool); 6937 return NULL; 6938 } 6939 } 6940 6941 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6942 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6943 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6944 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6945 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6946 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6947 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6948 6949 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 6950 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 6951 6952 hs->link_failure_count -= lso->link_failure_count; 6953 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6954 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6955 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6956 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6957 hs->invalid_crc_count -= lso->invalid_crc_count; 6958 hs->error_frames -= lso->error_frames; 6959 6960 if (phba->hba_flag & HBA_FCOE_MODE) { 6961 hs->lip_count = -1; 6962 hs->nos_count = (phba->link_events >> 1); 6963 hs->nos_count -= lso->link_events; 6964 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6965 hs->lip_count = (phba->fc_eventTag >> 1); 6966 hs->lip_count -= lso->link_events; 6967 hs->nos_count = -1; 6968 } else { 6969 hs->lip_count = -1; 6970 hs->nos_count = (phba->fc_eventTag >> 1); 6971 hs->nos_count -= lso->link_events; 6972 } 6973 6974 hs->dumped_frames = -1; 6975 6976 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6977 6978 mempool_free(pmboxq, phba->mbox_mem_pool); 6979 6980 return hs; 6981 } 6982 6983 /** 6984 * lpfc_reset_stats - Copy the adapter link stats information 6985 * @shost: kernel scsi host pointer. 6986 **/ 6987 static void 6988 lpfc_reset_stats(struct Scsi_Host *shost) 6989 { 6990 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6991 struct lpfc_hba *phba = vport->phba; 6992 struct lpfc_sli *psli = &phba->sli; 6993 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6994 LPFC_MBOXQ_t *pmboxq; 6995 MAILBOX_t *pmb; 6996 int rc = 0; 6997 6998 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6999 return; 7000 7001 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7002 if (!pmboxq) 7003 return; 7004 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7005 7006 pmb = &pmboxq->u.mb; 7007 pmb->mbxCommand = MBX_READ_STATUS; 7008 pmb->mbxOwner = OWN_HOST; 7009 pmb->un.varWords[0] = 0x1; /* reset request */ 7010 pmboxq->ctx_buf = NULL; 7011 pmboxq->vport = vport; 7012 7013 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7014 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7015 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7016 if (rc != MBX_SUCCESS) { 7017 mempool_free(pmboxq, phba->mbox_mem_pool); 7018 return; 7019 } 7020 } else { 7021 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7022 if (rc != MBX_SUCCESS) { 7023 if (rc != MBX_TIMEOUT) 7024 mempool_free(pmboxq, phba->mbox_mem_pool); 7025 return; 7026 } 7027 } 7028 7029 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7030 pmb->mbxCommand = MBX_READ_LNK_STAT; 7031 pmb->mbxOwner = OWN_HOST; 7032 pmboxq->ctx_buf = NULL; 7033 pmboxq->vport = vport; 7034 7035 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7036 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7037 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7038 if (rc != MBX_SUCCESS) { 7039 mempool_free(pmboxq, phba->mbox_mem_pool); 7040 return; 7041 } 7042 } else { 7043 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7044 if (rc != MBX_SUCCESS) { 7045 if (rc != MBX_TIMEOUT) 7046 mempool_free(pmboxq, phba->mbox_mem_pool); 7047 return; 7048 } 7049 } 7050 7051 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7052 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7053 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7054 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7055 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7056 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7057 lso->error_frames = pmb->un.varRdLnk.crcCnt; 7058 if (phba->hba_flag & HBA_FCOE_MODE) 7059 lso->link_events = (phba->link_events >> 1); 7060 else 7061 lso->link_events = (phba->fc_eventTag >> 1); 7062 7063 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 7064 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 7065 7066 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 7067 sizeof(shost_to_fc_host(shost)->fpin_stats)); 7068 7069 psli->stats_start = ktime_get_seconds(); 7070 7071 mempool_free(pmboxq, phba->mbox_mem_pool); 7072 7073 return; 7074 } 7075 7076 /* 7077 * The LPFC driver treats linkdown handling as target loss events so there 7078 * are no sysfs handlers for link_down_tmo. 7079 */ 7080 7081 /** 7082 * lpfc_get_node_by_target - Return the nodelist for a target 7083 * @starget: kernel scsi target pointer. 7084 * 7085 * Returns: 7086 * address of the node list if found 7087 * NULL target not found 7088 **/ 7089 static struct lpfc_nodelist * 7090 lpfc_get_node_by_target(struct scsi_target *starget) 7091 { 7092 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 7093 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7094 struct lpfc_nodelist *ndlp; 7095 7096 spin_lock_irq(shost->host_lock); 7097 /* Search for this, mapped, target ID */ 7098 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 7099 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 7100 starget->id == ndlp->nlp_sid) { 7101 spin_unlock_irq(shost->host_lock); 7102 return ndlp; 7103 } 7104 } 7105 spin_unlock_irq(shost->host_lock); 7106 return NULL; 7107 } 7108 7109 /** 7110 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 7111 * @starget: kernel scsi target pointer. 7112 **/ 7113 static void 7114 lpfc_get_starget_port_id(struct scsi_target *starget) 7115 { 7116 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7117 7118 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7119 } 7120 7121 /** 7122 * lpfc_get_starget_node_name - Set the target node name 7123 * @starget: kernel scsi target pointer. 7124 * 7125 * Description: Set the target node name to the ndlp node name wwn or zero. 7126 **/ 7127 static void 7128 lpfc_get_starget_node_name(struct scsi_target *starget) 7129 { 7130 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7131 7132 fc_starget_node_name(starget) = 7133 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7134 } 7135 7136 /** 7137 * lpfc_get_starget_port_name - Set the target port name 7138 * @starget: kernel scsi target pointer. 7139 * 7140 * Description: set the target port name to the ndlp port name wwn or zero. 7141 **/ 7142 static void 7143 lpfc_get_starget_port_name(struct scsi_target *starget) 7144 { 7145 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7146 7147 fc_starget_port_name(starget) = 7148 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7149 } 7150 7151 /** 7152 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7153 * @rport: fc rport address. 7154 * @timeout: new value for dev loss tmo. 7155 * 7156 * Description: 7157 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7158 * dev_loss_tmo to one. 7159 **/ 7160 static void 7161 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7162 { 7163 struct lpfc_rport_data *rdata = rport->dd_data; 7164 struct lpfc_nodelist *ndlp = rdata->pnode; 7165 #if (IS_ENABLED(CONFIG_NVME_FC)) 7166 struct lpfc_nvme_rport *nrport = NULL; 7167 #endif 7168 7169 if (timeout) 7170 rport->dev_loss_tmo = timeout; 7171 else 7172 rport->dev_loss_tmo = 1; 7173 7174 if (!ndlp) { 7175 dev_info(&rport->dev, "Cannot find remote node to " 7176 "set rport dev loss tmo, port_id x%x\n", 7177 rport->port_id); 7178 return; 7179 } 7180 7181 #if (IS_ENABLED(CONFIG_NVME_FC)) 7182 nrport = lpfc_ndlp_get_nrport(ndlp); 7183 7184 if (nrport && nrport->remoteport) 7185 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7186 rport->dev_loss_tmo); 7187 #endif 7188 } 7189 7190 /* 7191 * lpfc_rport_show_function - Return rport target information 7192 * 7193 * Description: 7194 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7195 * 7196 * lpfc_show_rport_##field: returns the bytes formatted in buf 7197 * @cdev: class converted to an fc_rport. 7198 * @buf: on return contains the target_field or zero. 7199 * 7200 * Returns: size of formatted string. 7201 **/ 7202 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7203 static ssize_t \ 7204 lpfc_show_rport_##field (struct device *dev, \ 7205 struct device_attribute *attr, \ 7206 char *buf) \ 7207 { \ 7208 struct fc_rport *rport = transport_class_to_rport(dev); \ 7209 struct lpfc_rport_data *rdata = rport->hostdata; \ 7210 return scnprintf(buf, sz, format_string, \ 7211 (rdata->target) ? cast rdata->target->field : 0); \ 7212 } 7213 7214 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7215 lpfc_rport_show_function(field, format_string, sz, ) \ 7216 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7217 7218 /** 7219 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7220 * @fc_vport: The fc_vport who's symbolic name has been changed. 7221 * 7222 * Description: 7223 * This function is called by the transport after the @fc_vport's symbolic name 7224 * has been changed. This function re-registers the symbolic name with the 7225 * switch to propagate the change into the fabric if the vport is active. 7226 **/ 7227 static void 7228 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7229 { 7230 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7231 7232 if (vport->port_state == LPFC_VPORT_READY) 7233 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7234 } 7235 7236 /** 7237 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7238 * @phba: Pointer to lpfc_hba struct. 7239 * @verbose: Verbose level to set. 7240 * 7241 * This function is called by the lpfc_get_cfgparam() routine to set the 7242 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7243 * log message according to the module's lpfc_log_verbose parameter setting 7244 * before hba port or vport created. 7245 **/ 7246 static void 7247 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7248 { 7249 phba->cfg_log_verbose = verbose; 7250 } 7251 7252 struct fc_function_template lpfc_transport_functions = { 7253 /* fixed attributes the driver supports */ 7254 .show_host_node_name = 1, 7255 .show_host_port_name = 1, 7256 .show_host_supported_classes = 1, 7257 .show_host_supported_fc4s = 1, 7258 .show_host_supported_speeds = 1, 7259 .show_host_maxframe_size = 1, 7260 7261 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7262 .show_host_symbolic_name = 1, 7263 7264 /* dynamic attributes the driver supports */ 7265 .get_host_port_id = lpfc_get_host_port_id, 7266 .show_host_port_id = 1, 7267 7268 .get_host_port_type = lpfc_get_host_port_type, 7269 .show_host_port_type = 1, 7270 7271 .get_host_port_state = lpfc_get_host_port_state, 7272 .show_host_port_state = 1, 7273 7274 /* active_fc4s is shown but doesn't change (thus no get function) */ 7275 .show_host_active_fc4s = 1, 7276 7277 .get_host_speed = lpfc_get_host_speed, 7278 .show_host_speed = 1, 7279 7280 .get_host_fabric_name = lpfc_get_host_fabric_name, 7281 .show_host_fabric_name = 1, 7282 7283 /* 7284 * The LPFC driver treats linkdown handling as target loss events 7285 * so there are no sysfs handlers for link_down_tmo. 7286 */ 7287 7288 .get_fc_host_stats = lpfc_get_stats, 7289 .reset_fc_host_stats = lpfc_reset_stats, 7290 7291 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7292 .show_rport_maxframe_size = 1, 7293 .show_rport_supported_classes = 1, 7294 7295 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7296 .show_rport_dev_loss_tmo = 1, 7297 7298 .get_starget_port_id = lpfc_get_starget_port_id, 7299 .show_starget_port_id = 1, 7300 7301 .get_starget_node_name = lpfc_get_starget_node_name, 7302 .show_starget_node_name = 1, 7303 7304 .get_starget_port_name = lpfc_get_starget_port_name, 7305 .show_starget_port_name = 1, 7306 7307 .issue_fc_host_lip = lpfc_issue_lip, 7308 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7309 .terminate_rport_io = lpfc_terminate_rport_io, 7310 7311 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7312 7313 .vport_disable = lpfc_vport_disable, 7314 7315 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7316 7317 .bsg_request = lpfc_bsg_request, 7318 .bsg_timeout = lpfc_bsg_timeout, 7319 }; 7320 7321 struct fc_function_template lpfc_vport_transport_functions = { 7322 /* fixed attributes the driver supports */ 7323 .show_host_node_name = 1, 7324 .show_host_port_name = 1, 7325 .show_host_supported_classes = 1, 7326 .show_host_supported_fc4s = 1, 7327 .show_host_supported_speeds = 1, 7328 .show_host_maxframe_size = 1, 7329 7330 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7331 .show_host_symbolic_name = 1, 7332 7333 /* dynamic attributes the driver supports */ 7334 .get_host_port_id = lpfc_get_host_port_id, 7335 .show_host_port_id = 1, 7336 7337 .get_host_port_type = lpfc_get_host_port_type, 7338 .show_host_port_type = 1, 7339 7340 .get_host_port_state = lpfc_get_host_port_state, 7341 .show_host_port_state = 1, 7342 7343 /* active_fc4s is shown but doesn't change (thus no get function) */ 7344 .show_host_active_fc4s = 1, 7345 7346 .get_host_speed = lpfc_get_host_speed, 7347 .show_host_speed = 1, 7348 7349 .get_host_fabric_name = lpfc_get_host_fabric_name, 7350 .show_host_fabric_name = 1, 7351 7352 /* 7353 * The LPFC driver treats linkdown handling as target loss events 7354 * so there are no sysfs handlers for link_down_tmo. 7355 */ 7356 7357 .get_fc_host_stats = lpfc_get_stats, 7358 .reset_fc_host_stats = lpfc_reset_stats, 7359 7360 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7361 .show_rport_maxframe_size = 1, 7362 .show_rport_supported_classes = 1, 7363 7364 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7365 .show_rport_dev_loss_tmo = 1, 7366 7367 .get_starget_port_id = lpfc_get_starget_port_id, 7368 .show_starget_port_id = 1, 7369 7370 .get_starget_node_name = lpfc_get_starget_node_name, 7371 .show_starget_node_name = 1, 7372 7373 .get_starget_port_name = lpfc_get_starget_port_name, 7374 .show_starget_port_name = 1, 7375 7376 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7377 .terminate_rport_io = lpfc_terminate_rport_io, 7378 7379 .vport_disable = lpfc_vport_disable, 7380 7381 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7382 }; 7383 7384 /** 7385 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7386 * Mode 7387 * @phba: lpfc_hba pointer. 7388 **/ 7389 static void 7390 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7391 { 7392 /* If the adapter supports FCoE mode */ 7393 switch (phba->pcidev->device) { 7394 case PCI_DEVICE_ID_SKYHAWK: 7395 case PCI_DEVICE_ID_SKYHAWK_VF: 7396 case PCI_DEVICE_ID_LANCER_FCOE: 7397 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7398 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7399 case PCI_DEVICE_ID_HORNET: 7400 case PCI_DEVICE_ID_TIGERSHARK: 7401 case PCI_DEVICE_ID_TOMCAT: 7402 phba->hba_flag |= HBA_FCOE_MODE; 7403 break; 7404 default: 7405 /* for others, clear the flag */ 7406 phba->hba_flag &= ~HBA_FCOE_MODE; 7407 } 7408 } 7409 7410 /** 7411 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7412 * @phba: lpfc_hba pointer. 7413 **/ 7414 void 7415 lpfc_get_cfgparam(struct lpfc_hba *phba) 7416 { 7417 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7418 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7419 lpfc_ns_query_init(phba, lpfc_ns_query); 7420 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7421 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7422 lpfc_cr_count_init(phba, lpfc_cr_count); 7423 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7424 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7425 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7426 lpfc_ack0_init(phba, lpfc_ack0); 7427 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7428 lpfc_topology_init(phba, lpfc_topology); 7429 lpfc_link_speed_init(phba, lpfc_link_speed); 7430 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7431 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7432 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7433 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7434 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7435 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7436 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7437 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7438 lpfc_use_msi_init(phba, lpfc_use_msi); 7439 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7440 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7441 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7442 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7443 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7444 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7445 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7446 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7447 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7448 7449 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7450 /* VMID Inits */ 7451 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7452 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7453 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7454 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7455 if (phba->sli_rev != LPFC_SLI_REV4) 7456 phba->cfg_EnableXLane = 0; 7457 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7458 7459 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7460 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7461 phba->cfg_oas_lun_state = 0; 7462 phba->cfg_oas_lun_status = 0; 7463 phba->cfg_oas_flags = 0; 7464 phba->cfg_oas_priority = 0; 7465 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7466 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7467 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7468 if (phba->sli_rev == LPFC_SLI_REV4) 7469 phba->cfg_poll = 0; 7470 else 7471 phba->cfg_poll = lpfc_poll; 7472 7473 /* Get the function mode */ 7474 lpfc_get_hba_function_mode(phba); 7475 7476 /* BlockGuard allowed for FC only. */ 7477 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7478 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7479 "0581 BlockGuard feature not supported\n"); 7480 /* If set, clear the BlockGuard support param */ 7481 phba->cfg_enable_bg = 0; 7482 } else if (phba->cfg_enable_bg) { 7483 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7484 } 7485 7486 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7487 7488 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7489 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7490 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7491 7492 /* Initialize first burst. Target vs Initiator are different. */ 7493 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7494 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7495 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7496 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7497 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7498 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7499 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7500 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7501 7502 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7503 phba->cmf_active_mode = LPFC_CFG_OFF; 7504 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7505 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7506 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7507 7508 if (phba->sli_rev != LPFC_SLI_REV4) { 7509 /* NVME only supported on SLI4 */ 7510 phba->nvmet_support = 0; 7511 phba->cfg_nvmet_mrq = 0; 7512 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7513 phba->cfg_enable_bbcr = 0; 7514 phba->cfg_xri_rebalancing = 0; 7515 } else { 7516 /* We MUST have FCP support */ 7517 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7518 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7519 } 7520 7521 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7522 7523 phba->cfg_enable_pbde = 0; 7524 7525 /* A value of 0 means use the number of CPUs found in the system */ 7526 if (phba->cfg_hdw_queue == 0) 7527 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7528 if (phba->cfg_irq_chann == 0) 7529 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7530 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7531 phba->sli_rev == LPFC_SLI_REV4) 7532 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7533 7534 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7535 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7536 lpfc_aer_support_init(phba, lpfc_aer_support); 7537 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7538 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7539 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7540 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7541 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7542 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7543 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7544 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7545 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7546 7547 return; 7548 } 7549 7550 /** 7551 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7552 * dependencies between protocols and roles. 7553 * @phba: lpfc_hba pointer. 7554 **/ 7555 void 7556 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7557 { 7558 int logit = 0; 7559 7560 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7561 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7562 logit = 1; 7563 } 7564 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7565 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7566 logit = 1; 7567 } 7568 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7569 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7570 logit = 1; 7571 } 7572 if (logit) 7573 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7574 "2006 Reducing Queues - CPU limitation: " 7575 "IRQ %d HDWQ %d\n", 7576 phba->cfg_irq_chann, 7577 phba->cfg_hdw_queue); 7578 7579 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7580 phba->nvmet_support) { 7581 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7582 7583 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7584 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7585 "NVME Target PRLI ACC enable_fb ", 7586 phba->cfg_nvme_enable_fb, 7587 phba->cfg_nvmet_fb_size, 7588 LPFC_NVMET_FB_SZ_MAX); 7589 7590 if (phba->cfg_nvme_enable_fb == 0) 7591 phba->cfg_nvmet_fb_size = 0; 7592 else { 7593 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7594 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7595 } 7596 7597 if (!phba->cfg_nvmet_mrq) 7598 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7599 7600 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7601 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7602 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7603 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7604 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7605 phba->cfg_nvmet_mrq); 7606 } 7607 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7608 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7609 7610 } else { 7611 /* Not NVME Target mode. Turn off Target parameters. */ 7612 phba->nvmet_support = 0; 7613 phba->cfg_nvmet_mrq = 0; 7614 phba->cfg_nvmet_fb_size = 0; 7615 } 7616 } 7617 7618 /** 7619 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7620 * @vport: lpfc_vport pointer. 7621 **/ 7622 void 7623 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7624 { 7625 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7626 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7627 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7628 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7629 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7630 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7631 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7632 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7633 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7634 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7635 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7636 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7637 lpfc_max_luns_init(vport, lpfc_max_luns); 7638 lpfc_scan_down_init(vport, lpfc_scan_down); 7639 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7640 return; 7641 } 7642