1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 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 - 289 strnlen(LPFC_INFO_MORE_STR, PAGE_SIZE - 1), 290 LPFC_INFO_MORE_STR, 291 strnlen(LPFC_INFO_MORE_STR, PAGE_SIZE - 1) 292 + 1); 293 } 294 return len; 295 } 296 297 /** 298 * lpfc_drvr_version_show - Return the Emulex driver string with version number 299 * @dev: class unused variable. 300 * @attr: device attribute, not used. 301 * @buf: on return contains the module description text. 302 * 303 * Returns: size of formatted string. 304 **/ 305 static ssize_t 306 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 307 char *buf) 308 { 309 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 310 } 311 312 /** 313 * lpfc_enable_fip_show - Return the fip mode of the HBA 314 * @dev: class unused variable. 315 * @attr: device attribute, not used. 316 * @buf: on return contains the module description text. 317 * 318 * Returns: size of formatted string. 319 **/ 320 static ssize_t 321 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 322 char *buf) 323 { 324 struct Scsi_Host *shost = class_to_shost(dev); 325 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 326 struct lpfc_hba *phba = vport->phba; 327 328 if (phba->hba_flag & HBA_FIP_SUPPORT) 329 return scnprintf(buf, PAGE_SIZE, "1\n"); 330 else 331 return scnprintf(buf, PAGE_SIZE, "0\n"); 332 } 333 334 static ssize_t 335 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 336 char *buf) 337 { 338 struct Scsi_Host *shost = class_to_shost(dev); 339 struct lpfc_vport *vport = shost_priv(shost); 340 struct lpfc_hba *phba = vport->phba; 341 struct lpfc_nvmet_tgtport *tgtp; 342 struct nvme_fc_local_port *localport; 343 struct lpfc_nvme_lport *lport; 344 struct lpfc_nvme_rport *rport; 345 struct lpfc_nodelist *ndlp; 346 struct nvme_fc_remote_port *nrport; 347 struct lpfc_fc4_ctrl_stat *cstat; 348 uint64_t data1, data2, data3; 349 uint64_t totin, totout, tot; 350 char *statep; 351 int i; 352 int len = 0; 353 char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; 354 355 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 356 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 357 return len; 358 } 359 if (phba->nvmet_support) { 360 if (!phba->targetport) { 361 len = scnprintf(buf, PAGE_SIZE, 362 "NVME Target: x%llx is not allocated\n", 363 wwn_to_u64(vport->fc_portname.u.wwn)); 364 return len; 365 } 366 /* Port state is only one of two values for now. */ 367 if (phba->targetport->port_id) 368 statep = "REGISTERED"; 369 else 370 statep = "INIT"; 371 scnprintf(tmp, sizeof(tmp), 372 "NVME Target Enabled State %s\n", 373 statep); 374 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 375 goto buffer_done; 376 377 scnprintf(tmp, sizeof(tmp), 378 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 379 "NVME Target: lpfc", 380 phba->brd_no, 381 wwn_to_u64(vport->fc_portname.u.wwn), 382 wwn_to_u64(vport->fc_nodename.u.wwn), 383 phba->targetport->port_id); 384 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 385 goto buffer_done; 386 387 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 388 >= PAGE_SIZE) 389 goto buffer_done; 390 391 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 392 scnprintf(tmp, sizeof(tmp), 393 "LS: Rcv %08x Drop %08x Abort %08x\n", 394 atomic_read(&tgtp->rcv_ls_req_in), 395 atomic_read(&tgtp->rcv_ls_req_drop), 396 atomic_read(&tgtp->xmt_ls_abort)); 397 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 398 goto buffer_done; 399 400 if (atomic_read(&tgtp->rcv_ls_req_in) != 401 atomic_read(&tgtp->rcv_ls_req_out)) { 402 scnprintf(tmp, sizeof(tmp), 403 "Rcv LS: in %08x != out %08x\n", 404 atomic_read(&tgtp->rcv_ls_req_in), 405 atomic_read(&tgtp->rcv_ls_req_out)); 406 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 407 goto buffer_done; 408 } 409 410 scnprintf(tmp, sizeof(tmp), 411 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 412 atomic_read(&tgtp->xmt_ls_rsp), 413 atomic_read(&tgtp->xmt_ls_drop), 414 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 415 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 416 goto buffer_done; 417 418 scnprintf(tmp, sizeof(tmp), 419 "LS: RSP Abort %08x xb %08x Err %08x\n", 420 atomic_read(&tgtp->xmt_ls_rsp_aborted), 421 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 422 atomic_read(&tgtp->xmt_ls_rsp_error)); 423 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 424 goto buffer_done; 425 426 scnprintf(tmp, sizeof(tmp), 427 "FCP: Rcv %08x Defer %08x Release %08x " 428 "Drop %08x\n", 429 atomic_read(&tgtp->rcv_fcp_cmd_in), 430 atomic_read(&tgtp->rcv_fcp_cmd_defer), 431 atomic_read(&tgtp->xmt_fcp_release), 432 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 433 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 434 goto buffer_done; 435 436 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 437 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 438 scnprintf(tmp, sizeof(tmp), 439 "Rcv FCP: in %08x != out %08x\n", 440 atomic_read(&tgtp->rcv_fcp_cmd_in), 441 atomic_read(&tgtp->rcv_fcp_cmd_out)); 442 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 443 goto buffer_done; 444 } 445 446 scnprintf(tmp, sizeof(tmp), 447 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 448 "drop %08x\n", 449 atomic_read(&tgtp->xmt_fcp_read), 450 atomic_read(&tgtp->xmt_fcp_read_rsp), 451 atomic_read(&tgtp->xmt_fcp_write), 452 atomic_read(&tgtp->xmt_fcp_rsp), 453 atomic_read(&tgtp->xmt_fcp_drop)); 454 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 455 goto buffer_done; 456 457 scnprintf(tmp, sizeof(tmp), 458 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 459 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 460 atomic_read(&tgtp->xmt_fcp_rsp_error), 461 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 462 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 463 goto buffer_done; 464 465 scnprintf(tmp, sizeof(tmp), 466 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 467 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 468 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 469 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 470 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 471 goto buffer_done; 472 473 scnprintf(tmp, sizeof(tmp), 474 "ABORT: Xmt %08x Cmpl %08x\n", 475 atomic_read(&tgtp->xmt_fcp_abort), 476 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 477 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 478 goto buffer_done; 479 480 scnprintf(tmp, sizeof(tmp), 481 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 482 atomic_read(&tgtp->xmt_abort_sol), 483 atomic_read(&tgtp->xmt_abort_unsol), 484 atomic_read(&tgtp->xmt_abort_rsp), 485 atomic_read(&tgtp->xmt_abort_rsp_error)); 486 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 487 goto buffer_done; 488 489 scnprintf(tmp, sizeof(tmp), 490 "DELAY: ctx %08x fod %08x wqfull %08x\n", 491 atomic_read(&tgtp->defer_ctx), 492 atomic_read(&tgtp->defer_fod), 493 atomic_read(&tgtp->defer_wqfull)); 494 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 495 goto buffer_done; 496 497 /* Calculate outstanding IOs */ 498 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 499 tot += atomic_read(&tgtp->xmt_fcp_release); 500 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 501 502 scnprintf(tmp, sizeof(tmp), 503 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 504 "CTX Outstanding %08llx\n\n", 505 phba->sli4_hba.nvmet_xri_cnt, 506 phba->sli4_hba.nvmet_io_wait_cnt, 507 phba->sli4_hba.nvmet_io_wait_total, 508 tot); 509 strlcat(buf, tmp, PAGE_SIZE); 510 goto buffer_done; 511 } 512 513 localport = vport->localport; 514 if (!localport) { 515 len = scnprintf(buf, PAGE_SIZE, 516 "NVME Initiator x%llx is not allocated\n", 517 wwn_to_u64(vport->fc_portname.u.wwn)); 518 return len; 519 } 520 lport = (struct lpfc_nvme_lport *)localport->private; 521 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 522 goto buffer_done; 523 524 scnprintf(tmp, sizeof(tmp), 525 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 526 phba->brd_no, 527 phba->sli4_hba.max_cfg_param.max_xri, 528 phba->sli4_hba.io_xri_max, 529 lpfc_sli4_get_els_iocb_cnt(phba)); 530 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 531 goto buffer_done; 532 533 /* Port state is only one of two values for now. */ 534 if (localport->port_id) 535 statep = "ONLINE"; 536 else 537 statep = "UNKNOWN "; 538 539 scnprintf(tmp, sizeof(tmp), 540 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 541 "NVME LPORT lpfc", 542 phba->brd_no, 543 wwn_to_u64(vport->fc_portname.u.wwn), 544 wwn_to_u64(vport->fc_nodename.u.wwn), 545 localport->port_id, statep); 546 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 547 goto buffer_done; 548 549 spin_lock_irq(shost->host_lock); 550 551 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 552 nrport = NULL; 553 spin_lock(&ndlp->lock); 554 rport = lpfc_ndlp_get_nrport(ndlp); 555 if (rport) 556 nrport = rport->remoteport; 557 spin_unlock(&ndlp->lock); 558 if (!nrport) 559 continue; 560 561 /* Port state is only one of two values for now. */ 562 switch (nrport->port_state) { 563 case FC_OBJSTATE_ONLINE: 564 statep = "ONLINE"; 565 break; 566 case FC_OBJSTATE_UNKNOWN: 567 statep = "UNKNOWN "; 568 break; 569 default: 570 statep = "UNSUPPORTED"; 571 break; 572 } 573 574 /* Tab in to show lport ownership. */ 575 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 576 goto unlock_buf_done; 577 if (phba->brd_no >= 10) { 578 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 579 goto unlock_buf_done; 580 } 581 582 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 583 nrport->port_name); 584 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 585 goto unlock_buf_done; 586 587 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 588 nrport->node_name); 589 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 590 goto unlock_buf_done; 591 592 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 593 nrport->port_id); 594 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 595 goto unlock_buf_done; 596 597 /* An NVME rport can have multiple roles. */ 598 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 599 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 600 goto unlock_buf_done; 601 } 602 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 603 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 604 goto unlock_buf_done; 605 } 606 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 607 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 608 goto unlock_buf_done; 609 } 610 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 611 FC_PORT_ROLE_NVME_TARGET | 612 FC_PORT_ROLE_NVME_DISCOVERY)) { 613 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 614 nrport->port_role); 615 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 616 goto unlock_buf_done; 617 } 618 619 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 620 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 621 goto unlock_buf_done; 622 } 623 spin_unlock_irq(shost->host_lock); 624 625 if (!lport) 626 goto buffer_done; 627 628 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 629 goto buffer_done; 630 631 scnprintf(tmp, sizeof(tmp), 632 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 633 atomic_read(&lport->fc4NvmeLsRequests), 634 atomic_read(&lport->fc4NvmeLsCmpls), 635 atomic_read(&lport->xmt_ls_abort)); 636 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 637 goto buffer_done; 638 639 scnprintf(tmp, sizeof(tmp), 640 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 641 atomic_read(&lport->xmt_ls_err), 642 atomic_read(&lport->cmpl_ls_xb), 643 atomic_read(&lport->cmpl_ls_err)); 644 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 645 goto buffer_done; 646 647 totin = 0; 648 totout = 0; 649 for (i = 0; i < phba->cfg_hdw_queue; i++) { 650 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 651 tot = cstat->io_cmpls; 652 totin += tot; 653 data1 = cstat->input_requests; 654 data2 = cstat->output_requests; 655 data3 = cstat->control_requests; 656 totout += (data1 + data2 + data3); 657 } 658 scnprintf(tmp, sizeof(tmp), 659 "Total FCP Cmpl %016llx Issue %016llx " 660 "OutIO %016llx\n", 661 totin, totout, totout - totin); 662 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 663 goto buffer_done; 664 665 scnprintf(tmp, sizeof(tmp), 666 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 667 "wqerr %08x err %08x\n", 668 atomic_read(&lport->xmt_fcp_abort), 669 atomic_read(&lport->xmt_fcp_noxri), 670 atomic_read(&lport->xmt_fcp_bad_ndlp), 671 atomic_read(&lport->xmt_fcp_qdepth), 672 atomic_read(&lport->xmt_fcp_wqerr), 673 atomic_read(&lport->xmt_fcp_err)); 674 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 675 goto buffer_done; 676 677 scnprintf(tmp, sizeof(tmp), 678 "FCP CMPL: xb %08x Err %08x\n", 679 atomic_read(&lport->cmpl_fcp_xb), 680 atomic_read(&lport->cmpl_fcp_err)); 681 strlcat(buf, tmp, PAGE_SIZE); 682 683 /* host_lock is already unlocked. */ 684 goto buffer_done; 685 686 unlock_buf_done: 687 spin_unlock_irq(shost->host_lock); 688 689 buffer_done: 690 len = strnlen(buf, PAGE_SIZE); 691 692 if (unlikely(len >= (PAGE_SIZE - 1))) { 693 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 694 "6314 Catching potential buffer " 695 "overflow > PAGE_SIZE = %lu bytes\n", 696 PAGE_SIZE); 697 strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), 698 LPFC_INFO_MORE_STR, 699 sizeof(LPFC_INFO_MORE_STR) + 1); 700 } 701 702 return len; 703 } 704 705 static ssize_t 706 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 707 char *buf) 708 { 709 struct Scsi_Host *shost = class_to_shost(dev); 710 struct lpfc_vport *vport = shost_priv(shost); 711 struct lpfc_hba *phba = vport->phba; 712 int len; 713 struct lpfc_fc4_ctrl_stat *cstat; 714 u64 data1, data2, data3; 715 u64 tot, totin, totout; 716 int i; 717 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 718 719 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 720 (phba->sli_rev != LPFC_SLI_REV4)) 721 return 0; 722 723 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 724 725 totin = 0; 726 totout = 0; 727 for (i = 0; i < phba->cfg_hdw_queue; i++) { 728 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 729 tot = cstat->io_cmpls; 730 totin += tot; 731 data1 = cstat->input_requests; 732 data2 = cstat->output_requests; 733 data3 = cstat->control_requests; 734 totout += (data1 + data2 + data3); 735 736 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 737 "IO %016llx ", i, data1, data2, data3); 738 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 739 goto buffer_done; 740 741 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 742 tot, ((data1 + data2 + data3) - tot)); 743 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 744 goto buffer_done; 745 } 746 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 747 "OutIO %016llx\n", totin, totout, totout - totin); 748 strlcat(buf, tmp, PAGE_SIZE); 749 750 buffer_done: 751 len = strnlen(buf, PAGE_SIZE); 752 753 return len; 754 } 755 756 static ssize_t 757 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 758 char *buf) 759 { 760 struct Scsi_Host *shost = class_to_shost(dev); 761 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 762 struct lpfc_hba *phba = vport->phba; 763 764 if (phba->cfg_enable_bg) { 765 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 766 return scnprintf(buf, PAGE_SIZE, 767 "BlockGuard Enabled\n"); 768 else 769 return scnprintf(buf, PAGE_SIZE, 770 "BlockGuard Not Supported\n"); 771 } else 772 return scnprintf(buf, PAGE_SIZE, 773 "BlockGuard Disabled\n"); 774 } 775 776 static ssize_t 777 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 778 char *buf) 779 { 780 struct Scsi_Host *shost = class_to_shost(dev); 781 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 782 struct lpfc_hba *phba = vport->phba; 783 784 return scnprintf(buf, PAGE_SIZE, "%llu\n", 785 (unsigned long long)phba->bg_guard_err_cnt); 786 } 787 788 static ssize_t 789 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 790 char *buf) 791 { 792 struct Scsi_Host *shost = class_to_shost(dev); 793 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 794 struct lpfc_hba *phba = vport->phba; 795 796 return scnprintf(buf, PAGE_SIZE, "%llu\n", 797 (unsigned long long)phba->bg_apptag_err_cnt); 798 } 799 800 static ssize_t 801 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 802 char *buf) 803 { 804 struct Scsi_Host *shost = class_to_shost(dev); 805 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 806 struct lpfc_hba *phba = vport->phba; 807 808 return scnprintf(buf, PAGE_SIZE, "%llu\n", 809 (unsigned long long)phba->bg_reftag_err_cnt); 810 } 811 812 /** 813 * lpfc_info_show - Return some pci info about the host in ascii 814 * @dev: class converted to a Scsi_host structure. 815 * @attr: device attribute, not used. 816 * @buf: on return contains the formatted text from lpfc_info(). 817 * 818 * Returns: size of formatted string. 819 **/ 820 static ssize_t 821 lpfc_info_show(struct device *dev, struct device_attribute *attr, 822 char *buf) 823 { 824 struct Scsi_Host *host = class_to_shost(dev); 825 826 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 827 } 828 829 /** 830 * lpfc_serialnum_show - Return the hba serial number in ascii 831 * @dev: class converted to a Scsi_host structure. 832 * @attr: device attribute, not used. 833 * @buf: on return contains the formatted text serial number. 834 * 835 * Returns: size of formatted string. 836 **/ 837 static ssize_t 838 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 839 char *buf) 840 { 841 struct Scsi_Host *shost = class_to_shost(dev); 842 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 843 struct lpfc_hba *phba = vport->phba; 844 845 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 846 } 847 848 /** 849 * lpfc_temp_sensor_show - Return the temperature sensor level 850 * @dev: class converted to a Scsi_host structure. 851 * @attr: device attribute, not used. 852 * @buf: on return contains the formatted support level. 853 * 854 * Description: 855 * Returns a number indicating the temperature sensor level currently 856 * supported, zero or one in ascii. 857 * 858 * Returns: size of formatted string. 859 **/ 860 static ssize_t 861 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 862 char *buf) 863 { 864 struct Scsi_Host *shost = class_to_shost(dev); 865 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 866 struct lpfc_hba *phba = vport->phba; 867 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 868 } 869 870 /** 871 * lpfc_modeldesc_show - Return the model description of the hba 872 * @dev: class converted to a Scsi_host structure. 873 * @attr: device attribute, not used. 874 * @buf: on return contains the scsi vpd model description. 875 * 876 * Returns: size of formatted string. 877 **/ 878 static ssize_t 879 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 880 char *buf) 881 { 882 struct Scsi_Host *shost = class_to_shost(dev); 883 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 884 struct lpfc_hba *phba = vport->phba; 885 886 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 887 } 888 889 /** 890 * lpfc_modelname_show - Return the model name of the hba 891 * @dev: class converted to a Scsi_host structure. 892 * @attr: device attribute, not used. 893 * @buf: on return contains the scsi vpd model name. 894 * 895 * Returns: size of formatted string. 896 **/ 897 static ssize_t 898 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 899 char *buf) 900 { 901 struct Scsi_Host *shost = class_to_shost(dev); 902 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 903 struct lpfc_hba *phba = vport->phba; 904 905 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 906 } 907 908 /** 909 * lpfc_programtype_show - Return the program type of the hba 910 * @dev: class converted to a Scsi_host structure. 911 * @attr: device attribute, not used. 912 * @buf: on return contains the scsi vpd program type. 913 * 914 * Returns: size of formatted string. 915 **/ 916 static ssize_t 917 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 918 char *buf) 919 { 920 struct Scsi_Host *shost = class_to_shost(dev); 921 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 922 struct lpfc_hba *phba = vport->phba; 923 924 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 925 } 926 927 /** 928 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 929 * @dev: class converted to a Scsi_host structure. 930 * @attr: device attribute, not used. 931 * @buf: on return contains the Menlo Maintenance sli flag. 932 * 933 * Returns: size of formatted string. 934 **/ 935 static ssize_t 936 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 937 { 938 struct Scsi_Host *shost = class_to_shost(dev); 939 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 940 struct lpfc_hba *phba = vport->phba; 941 942 return scnprintf(buf, PAGE_SIZE, "%d\n", 943 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 944 } 945 946 /** 947 * lpfc_vportnum_show - Return the port number in ascii of the hba 948 * @dev: class converted to a Scsi_host structure. 949 * @attr: device attribute, not used. 950 * @buf: on return contains scsi vpd program type. 951 * 952 * Returns: size of formatted string. 953 **/ 954 static ssize_t 955 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 956 char *buf) 957 { 958 struct Scsi_Host *shost = class_to_shost(dev); 959 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 960 struct lpfc_hba *phba = vport->phba; 961 962 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 963 } 964 965 /** 966 * lpfc_fwrev_show - Return the firmware rev running in the hba 967 * @dev: class converted to a Scsi_host structure. 968 * @attr: device attribute, not used. 969 * @buf: on return contains the scsi vpd program type. 970 * 971 * Returns: size of formatted string. 972 **/ 973 static ssize_t 974 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 975 char *buf) 976 { 977 struct Scsi_Host *shost = class_to_shost(dev); 978 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 979 struct lpfc_hba *phba = vport->phba; 980 uint32_t if_type; 981 uint8_t sli_family; 982 char fwrev[FW_REV_STR_SIZE]; 983 int len; 984 985 lpfc_decode_firmware_rev(phba, fwrev, 1); 986 if_type = phba->sli4_hba.pc_sli4_params.if_type; 987 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 988 989 if (phba->sli_rev < LPFC_SLI_REV4) 990 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 991 fwrev, phba->sli_rev); 992 else 993 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 994 fwrev, phba->sli_rev, if_type, sli_family); 995 996 return len; 997 } 998 999 /** 1000 * lpfc_hdw_show - Return the jedec information about the hba 1001 * @dev: class converted to a Scsi_host structure. 1002 * @attr: device attribute, not used. 1003 * @buf: on return contains the scsi vpd program type. 1004 * 1005 * Returns: size of formatted string. 1006 **/ 1007 static ssize_t 1008 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 1009 { 1010 char hdw[9]; 1011 struct Scsi_Host *shost = class_to_shost(dev); 1012 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1013 struct lpfc_hba *phba = vport->phba; 1014 lpfc_vpd_t *vp = &phba->vpd; 1015 1016 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 1017 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 1018 vp->rev.smRev, vp->rev.smFwRev); 1019 } 1020 1021 /** 1022 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 1023 * @dev: class converted to a Scsi_host structure. 1024 * @attr: device attribute, not used. 1025 * @buf: on return contains the ROM and FCode ascii strings. 1026 * 1027 * Returns: size of formatted string. 1028 **/ 1029 static ssize_t 1030 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 1031 char *buf) 1032 { 1033 struct Scsi_Host *shost = class_to_shost(dev); 1034 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1035 struct lpfc_hba *phba = vport->phba; 1036 char fwrev[FW_REV_STR_SIZE]; 1037 1038 if (phba->sli_rev < LPFC_SLI_REV4) 1039 return scnprintf(buf, PAGE_SIZE, "%s\n", 1040 phba->OptionROMVersion); 1041 1042 lpfc_decode_firmware_rev(phba, fwrev, 1); 1043 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 1044 } 1045 1046 /** 1047 * lpfc_link_state_show - Return the link state of the port 1048 * @dev: class converted to a Scsi_host structure. 1049 * @attr: device attribute, not used. 1050 * @buf: on return contains text describing the state of the link. 1051 * 1052 * Notes: 1053 * The switch statement has no default so zero will be returned. 1054 * 1055 * Returns: size of formatted string. 1056 **/ 1057 static ssize_t 1058 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 1059 char *buf) 1060 { 1061 struct Scsi_Host *shost = class_to_shost(dev); 1062 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1063 struct lpfc_hba *phba = vport->phba; 1064 int len = 0; 1065 1066 switch (phba->link_state) { 1067 case LPFC_LINK_UNKNOWN: 1068 case LPFC_WARM_START: 1069 case LPFC_INIT_START: 1070 case LPFC_INIT_MBX_CMDS: 1071 case LPFC_LINK_DOWN: 1072 case LPFC_HBA_ERROR: 1073 if (phba->hba_flag & LINK_DISABLED) 1074 len += scnprintf(buf + len, PAGE_SIZE-len, 1075 "Link Down - User disabled\n"); 1076 else 1077 len += scnprintf(buf + len, PAGE_SIZE-len, 1078 "Link Down\n"); 1079 break; 1080 case LPFC_LINK_UP: 1081 case LPFC_CLEAR_LA: 1082 case LPFC_HBA_READY: 1083 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 1084 1085 switch (vport->port_state) { 1086 case LPFC_LOCAL_CFG_LINK: 1087 len += scnprintf(buf + len, PAGE_SIZE-len, 1088 "Configuring Link\n"); 1089 break; 1090 case LPFC_FDISC: 1091 case LPFC_FLOGI: 1092 case LPFC_FABRIC_CFG_LINK: 1093 case LPFC_NS_REG: 1094 case LPFC_NS_QRY: 1095 case LPFC_BUILD_DISC_LIST: 1096 case LPFC_DISC_AUTH: 1097 len += scnprintf(buf + len, PAGE_SIZE - len, 1098 "Discovery\n"); 1099 break; 1100 case LPFC_VPORT_READY: 1101 len += scnprintf(buf + len, PAGE_SIZE - len, 1102 "Ready\n"); 1103 break; 1104 1105 case LPFC_VPORT_FAILED: 1106 len += scnprintf(buf + len, PAGE_SIZE - len, 1107 "Failed\n"); 1108 break; 1109 1110 case LPFC_VPORT_UNKNOWN: 1111 len += scnprintf(buf + len, PAGE_SIZE - len, 1112 "Unknown\n"); 1113 break; 1114 } 1115 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 1116 len += scnprintf(buf + len, PAGE_SIZE-len, 1117 " Menlo Maint Mode\n"); 1118 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 1119 if (vport->fc_flag & FC_PUBLIC_LOOP) 1120 len += scnprintf(buf + len, PAGE_SIZE-len, 1121 " Public Loop\n"); 1122 else 1123 len += scnprintf(buf + len, PAGE_SIZE-len, 1124 " Private Loop\n"); 1125 } else { 1126 if (vport->fc_flag & FC_FABRIC) 1127 len += scnprintf(buf + len, PAGE_SIZE-len, 1128 " Fabric\n"); 1129 else 1130 len += scnprintf(buf + len, PAGE_SIZE-len, 1131 " Point-2-Point\n"); 1132 } 1133 } 1134 1135 if ((phba->sli_rev == LPFC_SLI_REV4) && 1136 ((bf_get(lpfc_sli_intf_if_type, 1137 &phba->sli4_hba.sli_intf) == 1138 LPFC_SLI_INTF_IF_TYPE_6))) { 1139 struct lpfc_trunk_link link = phba->trunk_link; 1140 1141 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 1142 len += scnprintf(buf + len, PAGE_SIZE - len, 1143 "Trunk port 0: Link %s %s\n", 1144 (link.link0.state == LPFC_LINK_UP) ? 1145 "Up" : "Down. ", 1146 trunk_errmsg[link.link0.fault]); 1147 1148 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 1149 len += scnprintf(buf + len, PAGE_SIZE - len, 1150 "Trunk port 1: Link %s %s\n", 1151 (link.link1.state == LPFC_LINK_UP) ? 1152 "Up" : "Down. ", 1153 trunk_errmsg[link.link1.fault]); 1154 1155 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 1156 len += scnprintf(buf + len, PAGE_SIZE - len, 1157 "Trunk port 2: Link %s %s\n", 1158 (link.link2.state == LPFC_LINK_UP) ? 1159 "Up" : "Down. ", 1160 trunk_errmsg[link.link2.fault]); 1161 1162 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 1163 len += scnprintf(buf + len, PAGE_SIZE - len, 1164 "Trunk port 3: Link %s %s\n", 1165 (link.link3.state == LPFC_LINK_UP) ? 1166 "Up" : "Down. ", 1167 trunk_errmsg[link.link3.fault]); 1168 1169 } 1170 1171 return len; 1172 } 1173 1174 /** 1175 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1176 * @dev: class unused variable. 1177 * @attr: device attribute, not used. 1178 * @buf: on return contains the module description text. 1179 * 1180 * Returns: size of formatted string. 1181 **/ 1182 static ssize_t 1183 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1184 char *buf) 1185 { 1186 struct Scsi_Host *shost = class_to_shost(dev); 1187 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1188 struct lpfc_hba *phba = vport->phba; 1189 1190 if (phba->sli_rev < LPFC_SLI_REV4) 1191 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1192 1193 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1194 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1195 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1196 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1197 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1198 } 1199 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1200 } 1201 1202 /** 1203 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1204 * (OAS) is supported. 1205 * @dev: class unused variable. 1206 * @attr: device attribute, not used. 1207 * @buf: on return contains the module description text. 1208 * 1209 * Returns: size of formatted string. 1210 **/ 1211 static ssize_t 1212 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1213 char *buf) 1214 { 1215 struct Scsi_Host *shost = class_to_shost(dev); 1216 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1217 struct lpfc_hba *phba = vport->phba; 1218 1219 return scnprintf(buf, PAGE_SIZE, "%d\n", 1220 phba->sli4_hba.pc_sli4_params.oas_supported); 1221 } 1222 1223 /** 1224 * lpfc_link_state_store - Transition the link_state on an HBA port 1225 * @dev: class device that is converted into a Scsi_host. 1226 * @attr: device attribute, not used. 1227 * @buf: one or more lpfc_polling_flags values. 1228 * @count: not used. 1229 * 1230 * Returns: 1231 * -EINVAL if the buffer is not "up" or "down" 1232 * return from link state change function if non-zero 1233 * length of the buf on success 1234 **/ 1235 static ssize_t 1236 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1237 const char *buf, size_t count) 1238 { 1239 struct Scsi_Host *shost = class_to_shost(dev); 1240 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1241 struct lpfc_hba *phba = vport->phba; 1242 1243 int status = -EINVAL; 1244 1245 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1246 (phba->link_state == LPFC_LINK_DOWN)) 1247 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1248 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1249 (phba->link_state >= LPFC_LINK_UP)) 1250 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1251 1252 if (status == 0) 1253 return strlen(buf); 1254 else 1255 return status; 1256 } 1257 1258 /** 1259 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1260 * @dev: class device that is converted into a Scsi_host. 1261 * @attr: device attribute, not used. 1262 * @buf: on return contains the sum of fc mapped and unmapped. 1263 * 1264 * Description: 1265 * Returns the ascii text number of the sum of the fc mapped and unmapped 1266 * vport counts. 1267 * 1268 * Returns: size of formatted string. 1269 **/ 1270 static ssize_t 1271 lpfc_num_discovered_ports_show(struct device *dev, 1272 struct device_attribute *attr, char *buf) 1273 { 1274 struct Scsi_Host *shost = class_to_shost(dev); 1275 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1276 1277 return scnprintf(buf, PAGE_SIZE, "%d\n", 1278 vport->fc_map_cnt + vport->fc_unmap_cnt); 1279 } 1280 1281 /** 1282 * lpfc_issue_lip - Misnomer, name carried over from long ago 1283 * @shost: Scsi_Host pointer. 1284 * 1285 * Description: 1286 * Bring the link down gracefully then re-init the link. The firmware will 1287 * re-init the fiber channel interface as required. Does not issue a LIP. 1288 * 1289 * Returns: 1290 * -EPERM port offline or management commands are being blocked 1291 * -ENOMEM cannot allocate memory for the mailbox command 1292 * -EIO error sending the mailbox command 1293 * zero for success 1294 **/ 1295 static int 1296 lpfc_issue_lip(struct Scsi_Host *shost) 1297 { 1298 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1299 struct lpfc_hba *phba = vport->phba; 1300 LPFC_MBOXQ_t *pmboxq; 1301 int mbxstatus = MBXERR_ERROR; 1302 1303 /* 1304 * If the link is offline, disabled or BLOCK_MGMT_IO 1305 * it doesn't make any sense to allow issue_lip 1306 */ 1307 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1308 (phba->hba_flag & LINK_DISABLED) || 1309 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1310 return -EPERM; 1311 1312 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1313 1314 if (!pmboxq) 1315 return -ENOMEM; 1316 1317 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1318 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1319 pmboxq->u.mb.mbxOwner = OWN_HOST; 1320 1321 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1322 1323 if ((mbxstatus == MBX_SUCCESS) && 1324 (pmboxq->u.mb.mbxStatus == 0 || 1325 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1326 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1327 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1328 phba->cfg_link_speed); 1329 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1330 phba->fc_ratov * 2); 1331 if ((mbxstatus == MBX_SUCCESS) && 1332 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1333 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1334 "2859 SLI authentication is required " 1335 "for INIT_LINK but has not done yet\n"); 1336 } 1337 1338 lpfc_set_loopback_flag(phba); 1339 if (mbxstatus != MBX_TIMEOUT) 1340 mempool_free(pmboxq, phba->mbox_mem_pool); 1341 1342 if (mbxstatus == MBXERR_ERROR) 1343 return -EIO; 1344 1345 return 0; 1346 } 1347 1348 int 1349 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1350 { 1351 int cnt = 0; 1352 1353 spin_lock_irq(lock); 1354 while (!list_empty(q)) { 1355 spin_unlock_irq(lock); 1356 msleep(20); 1357 if (cnt++ > 250) { /* 5 secs */ 1358 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1359 "0466 Outstanding IO when " 1360 "bringing Adapter offline\n"); 1361 return 0; 1362 } 1363 spin_lock_irq(lock); 1364 } 1365 spin_unlock_irq(lock); 1366 return 1; 1367 } 1368 1369 /** 1370 * lpfc_do_offline - Issues a mailbox command to bring the link down 1371 * @phba: lpfc_hba pointer. 1372 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1373 * 1374 * Notes: 1375 * Assumes any error from lpfc_do_offline() will be negative. 1376 * Can wait up to 5 seconds for the port ring buffers count 1377 * to reach zero, prints a warning if it is not zero and continues. 1378 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1379 * 1380 * Returns: 1381 * -EIO error posting the event 1382 * zero for success 1383 **/ 1384 static int 1385 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1386 { 1387 struct completion online_compl; 1388 struct lpfc_queue *qp = NULL; 1389 struct lpfc_sli_ring *pring; 1390 struct lpfc_sli *psli; 1391 int status = 0; 1392 int i; 1393 int rc; 1394 1395 init_completion(&online_compl); 1396 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1397 LPFC_EVT_OFFLINE_PREP); 1398 if (rc == 0) 1399 return -ENOMEM; 1400 1401 wait_for_completion(&online_compl); 1402 1403 if (status != 0) 1404 return -EIO; 1405 1406 psli = &phba->sli; 1407 1408 /* 1409 * If freeing the queues have already started, don't access them. 1410 * Otherwise set FREE_WAIT to indicate that queues are being used 1411 * to hold the freeing process until we finish. 1412 */ 1413 spin_lock_irq(&phba->hbalock); 1414 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1415 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1416 } else { 1417 spin_unlock_irq(&phba->hbalock); 1418 goto skip_wait; 1419 } 1420 spin_unlock_irq(&phba->hbalock); 1421 1422 /* Wait a little for things to settle down, but not 1423 * long enough for dev loss timeout to expire. 1424 */ 1425 if (phba->sli_rev != LPFC_SLI_REV4) { 1426 for (i = 0; i < psli->num_rings; i++) { 1427 pring = &psli->sli3_ring[i]; 1428 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1429 &phba->hbalock)) 1430 goto out; 1431 } 1432 } else { 1433 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1434 pring = qp->pring; 1435 if (!pring) 1436 continue; 1437 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1438 &pring->ring_lock)) 1439 goto out; 1440 } 1441 } 1442 out: 1443 spin_lock_irq(&phba->hbalock); 1444 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1445 spin_unlock_irq(&phba->hbalock); 1446 1447 skip_wait: 1448 init_completion(&online_compl); 1449 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1450 if (rc == 0) 1451 return -ENOMEM; 1452 1453 wait_for_completion(&online_compl); 1454 1455 if (status != 0) 1456 return -EIO; 1457 1458 return 0; 1459 } 1460 1461 /** 1462 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1463 * @phba: lpfc_hba pointer. 1464 * 1465 * Description: 1466 * Issues a PCI secondary bus reset for the phba->pcidev. 1467 * 1468 * Notes: 1469 * First walks the bus_list to ensure only PCI devices with Emulex 1470 * vendor id, device ids that support hot reset, only one occurrence 1471 * of function 0, and all ports on the bus are in offline mode to ensure the 1472 * hot reset only affects one valid HBA. 1473 * 1474 * Returns: 1475 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1476 * -ENODEV, NULL ptr to pcidev 1477 * -EBADSLT, detected invalid device 1478 * -EBUSY, port is not in offline state 1479 * 0, successful 1480 */ 1481 static int 1482 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1483 { 1484 struct pci_dev *pdev = phba->pcidev; 1485 struct Scsi_Host *shost = NULL; 1486 struct lpfc_hba *phba_other = NULL; 1487 struct pci_dev *ptr = NULL; 1488 int res; 1489 1490 if (phba->cfg_enable_hba_reset != 2) 1491 return -ENOTSUPP; 1492 1493 if (!pdev) { 1494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1495 return -ENODEV; 1496 } 1497 1498 res = lpfc_check_pci_resettable(phba); 1499 if (res) 1500 return res; 1501 1502 /* Walk the list of devices on the pci_dev's bus */ 1503 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1504 /* Check port is offline */ 1505 shost = pci_get_drvdata(ptr); 1506 if (shost) { 1507 phba_other = 1508 ((struct lpfc_vport *)shost->hostdata)->phba; 1509 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1510 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1511 "8349 WWPN = 0x%02x%02x%02x%02x" 1512 "%02x%02x%02x%02x is not " 1513 "offline!\n", 1514 phba_other->wwpn[0], 1515 phba_other->wwpn[1], 1516 phba_other->wwpn[2], 1517 phba_other->wwpn[3], 1518 phba_other->wwpn[4], 1519 phba_other->wwpn[5], 1520 phba_other->wwpn[6], 1521 phba_other->wwpn[7]); 1522 return -EBUSY; 1523 } 1524 } 1525 } 1526 1527 /* Issue PCI bus reset */ 1528 res = pci_reset_bus(pdev); 1529 if (res) { 1530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1531 "8350 PCI reset bus failed: %d\n", res); 1532 } 1533 1534 return res; 1535 } 1536 1537 /** 1538 * lpfc_selective_reset - Offline then onlines the port 1539 * @phba: lpfc_hba pointer. 1540 * 1541 * Description: 1542 * If the port is configured to allow a reset then the hba is brought 1543 * offline then online. 1544 * 1545 * Notes: 1546 * Assumes any error from lpfc_do_offline() will be negative. 1547 * Do not make this function static. 1548 * 1549 * Returns: 1550 * lpfc_do_offline() return code if not zero 1551 * -EIO reset not configured or error posting the event 1552 * zero for success 1553 **/ 1554 int 1555 lpfc_selective_reset(struct lpfc_hba *phba) 1556 { 1557 struct completion online_compl; 1558 int status = 0; 1559 int rc; 1560 1561 if (!phba->cfg_enable_hba_reset) 1562 return -EACCES; 1563 1564 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1565 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1566 1567 if (status != 0) 1568 return status; 1569 } 1570 1571 init_completion(&online_compl); 1572 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1573 LPFC_EVT_ONLINE); 1574 if (rc == 0) 1575 return -ENOMEM; 1576 1577 wait_for_completion(&online_compl); 1578 1579 if (status != 0) 1580 return -EIO; 1581 1582 return 0; 1583 } 1584 1585 /** 1586 * lpfc_issue_reset - Selectively resets an adapter 1587 * @dev: class device that is converted into a Scsi_host. 1588 * @attr: device attribute, not used. 1589 * @buf: containing the string "selective". 1590 * @count: unused variable. 1591 * 1592 * Description: 1593 * If the buf contains the string "selective" then lpfc_selective_reset() 1594 * is called to perform the reset. 1595 * 1596 * Notes: 1597 * Assumes any error from lpfc_selective_reset() will be negative. 1598 * If lpfc_selective_reset() returns zero then the length of the buffer 1599 * is returned which indicates success 1600 * 1601 * Returns: 1602 * -EINVAL if the buffer does not contain the string "selective" 1603 * length of buf if lpfc-selective_reset() if the call succeeds 1604 * return value of lpfc_selective_reset() if the call fails 1605 **/ 1606 static ssize_t 1607 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1608 const char *buf, size_t count) 1609 { 1610 struct Scsi_Host *shost = class_to_shost(dev); 1611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1612 struct lpfc_hba *phba = vport->phba; 1613 int status = -EINVAL; 1614 1615 if (!phba->cfg_enable_hba_reset) 1616 return -EACCES; 1617 1618 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1619 status = phba->lpfc_selective_reset(phba); 1620 1621 if (status == 0) 1622 return strlen(buf); 1623 else 1624 return status; 1625 } 1626 1627 /** 1628 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1629 * @phba: lpfc_hba pointer. 1630 * 1631 * Description: 1632 * SLI4 interface type-2 device to wait on the sliport status register for 1633 * the readyness after performing a firmware reset. 1634 * 1635 * Returns: 1636 * zero for success, -EPERM when port does not have privilege to perform the 1637 * reset, -EIO when port timeout from recovering from the reset. 1638 * 1639 * Note: 1640 * As the caller will interpret the return code by value, be careful in making 1641 * change or addition to return codes. 1642 **/ 1643 int 1644 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1645 { 1646 struct lpfc_register portstat_reg = {0}; 1647 int i; 1648 1649 msleep(100); 1650 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1651 &portstat_reg.word0)) 1652 return -EIO; 1653 1654 /* verify if privileged for the request operation */ 1655 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1656 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1657 return -EPERM; 1658 1659 /* wait for the SLI port firmware ready after firmware reset */ 1660 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1661 msleep(10); 1662 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1663 &portstat_reg.word0)) 1664 continue; 1665 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1666 continue; 1667 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1668 continue; 1669 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1670 continue; 1671 break; 1672 } 1673 1674 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1675 return 0; 1676 else 1677 return -EIO; 1678 } 1679 1680 /** 1681 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1682 * @phba: lpfc_hba pointer. 1683 * @opcode: The sli4 config command opcode. 1684 * 1685 * Description: 1686 * Request SLI4 interface type-2 device to perform a physical register set 1687 * access. 1688 * 1689 * Returns: 1690 * zero for success 1691 **/ 1692 static ssize_t 1693 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1694 { 1695 struct completion online_compl; 1696 struct pci_dev *pdev = phba->pcidev; 1697 uint32_t before_fc_flag; 1698 uint32_t sriov_nr_virtfn; 1699 uint32_t reg_val; 1700 int status = 0, rc = 0; 1701 int job_posted = 1, sriov_err; 1702 1703 if (!phba->cfg_enable_hba_reset) 1704 return -EACCES; 1705 1706 if ((phba->sli_rev < LPFC_SLI_REV4) || 1707 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1708 LPFC_SLI_INTF_IF_TYPE_2)) 1709 return -EPERM; 1710 1711 /* Keep state if we need to restore back */ 1712 before_fc_flag = phba->pport->fc_flag; 1713 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1714 1715 /* Disable SR-IOV virtual functions if enabled */ 1716 if (phba->cfg_sriov_nr_virtfn) { 1717 pci_disable_sriov(pdev); 1718 phba->cfg_sriov_nr_virtfn = 0; 1719 } 1720 1721 if (opcode == LPFC_FW_DUMP) 1722 phba->hba_flag |= HBA_FW_DUMP_OP; 1723 1724 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1725 1726 if (status != 0) { 1727 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1728 return status; 1729 } 1730 1731 /* wait for the device to be quiesced before firmware reset */ 1732 msleep(100); 1733 1734 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1735 LPFC_CTL_PDEV_CTL_OFFSET); 1736 1737 if (opcode == LPFC_FW_DUMP) 1738 reg_val |= LPFC_FW_DUMP_REQUEST; 1739 else if (opcode == LPFC_FW_RESET) 1740 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1741 else if (opcode == LPFC_DV_RESET) 1742 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1743 1744 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1745 LPFC_CTL_PDEV_CTL_OFFSET); 1746 /* flush */ 1747 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1748 1749 /* delay driver action following IF_TYPE_2 reset */ 1750 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1751 1752 if (rc == -EPERM) { 1753 /* no privilege for reset */ 1754 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1755 "3150 No privilege to perform the requested " 1756 "access: x%x\n", reg_val); 1757 } else if (rc == -EIO) { 1758 /* reset failed, there is nothing more we can do */ 1759 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1760 "3153 Fail to perform the requested " 1761 "access: x%x\n", reg_val); 1762 return rc; 1763 } 1764 1765 /* keep the original port state */ 1766 if (before_fc_flag & FC_OFFLINE_MODE) 1767 goto out; 1768 1769 init_completion(&online_compl); 1770 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1771 LPFC_EVT_ONLINE); 1772 if (!job_posted) 1773 goto out; 1774 1775 wait_for_completion(&online_compl); 1776 1777 out: 1778 /* in any case, restore the virtual functions enabled as before */ 1779 if (sriov_nr_virtfn) { 1780 sriov_err = 1781 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1782 if (!sriov_err) 1783 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1784 } 1785 1786 /* return proper error code */ 1787 if (!rc) { 1788 if (!job_posted) 1789 rc = -ENOMEM; 1790 else if (status) 1791 rc = -EIO; 1792 } 1793 return rc; 1794 } 1795 1796 /** 1797 * lpfc_nport_evt_cnt_show - Return the number of nport events 1798 * @dev: class device that is converted into a Scsi_host. 1799 * @attr: device attribute, not used. 1800 * @buf: on return contains the ascii number of nport events. 1801 * 1802 * Returns: size of formatted string. 1803 **/ 1804 static ssize_t 1805 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1806 char *buf) 1807 { 1808 struct Scsi_Host *shost = class_to_shost(dev); 1809 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1810 struct lpfc_hba *phba = vport->phba; 1811 1812 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1813 } 1814 1815 static int 1816 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1817 { 1818 LPFC_MBOXQ_t *mbox = NULL; 1819 unsigned long val = 0; 1820 char *pval = NULL; 1821 int rc = 0; 1822 1823 if (!strncmp("enable", buff_out, 1824 strlen("enable"))) { 1825 pval = buff_out + strlen("enable") + 1; 1826 rc = kstrtoul(pval, 0, &val); 1827 if (rc) 1828 return rc; /* Invalid number */ 1829 } else if (!strncmp("disable", buff_out, 1830 strlen("disable"))) { 1831 val = 0; 1832 } else { 1833 return -EINVAL; /* Invalid command */ 1834 } 1835 1836 switch (val) { 1837 case 0: 1838 val = 0x0; /* Disable */ 1839 break; 1840 case 2: 1841 val = 0x1; /* Enable two port trunk */ 1842 break; 1843 case 4: 1844 val = 0x2; /* Enable four port trunk */ 1845 break; 1846 default: 1847 return -EINVAL; 1848 } 1849 1850 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1851 "0070 Set trunk mode with val %ld ", val); 1852 1853 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1854 if (!mbox) 1855 return -ENOMEM; 1856 1857 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1858 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1859 12, LPFC_SLI4_MBX_EMBED); 1860 1861 bf_set(lpfc_mbx_set_trunk_mode, 1862 &mbox->u.mqe.un.set_trunk_mode, 1863 val); 1864 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1865 if (rc) 1866 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1867 "0071 Set trunk mode failed with status: %d", 1868 rc); 1869 mempool_free(mbox, phba->mbox_mem_pool); 1870 1871 return 0; 1872 } 1873 1874 /** 1875 * lpfc_board_mode_show - Return the state of the board 1876 * @dev: class device that is converted into a Scsi_host. 1877 * @attr: device attribute, not used. 1878 * @buf: on return contains the state of the adapter. 1879 * 1880 * Returns: size of formatted string. 1881 **/ 1882 static ssize_t 1883 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1884 char *buf) 1885 { 1886 struct Scsi_Host *shost = class_to_shost(dev); 1887 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1888 struct lpfc_hba *phba = vport->phba; 1889 char * state; 1890 1891 if (phba->link_state == LPFC_HBA_ERROR) 1892 state = "error"; 1893 else if (phba->link_state == LPFC_WARM_START) 1894 state = "warm start"; 1895 else if (phba->link_state == LPFC_INIT_START) 1896 state = "offline"; 1897 else 1898 state = "online"; 1899 1900 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1901 } 1902 1903 /** 1904 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1905 * @dev: class device that is converted into a Scsi_host. 1906 * @attr: device attribute, not used. 1907 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1908 * @count: unused variable. 1909 * 1910 * Returns: 1911 * -EACCES if enable hba reset not enabled 1912 * -EINVAL if the buffer does not contain a valid string (see above) 1913 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1914 * buf length greater than zero indicates success 1915 **/ 1916 static ssize_t 1917 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1918 const char *buf, size_t count) 1919 { 1920 struct Scsi_Host *shost = class_to_shost(dev); 1921 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1922 struct lpfc_hba *phba = vport->phba; 1923 struct completion online_compl; 1924 char *board_mode_str = NULL; 1925 int status = 0; 1926 int rc; 1927 1928 if (!phba->cfg_enable_hba_reset) { 1929 status = -EACCES; 1930 goto board_mode_out; 1931 } 1932 1933 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1934 "3050 lpfc_board_mode set to %s\n", buf); 1935 1936 init_completion(&online_compl); 1937 1938 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1939 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1940 LPFC_EVT_ONLINE); 1941 if (rc == 0) { 1942 status = -ENOMEM; 1943 goto board_mode_out; 1944 } 1945 wait_for_completion(&online_compl); 1946 if (status) 1947 status = -EIO; 1948 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1949 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1950 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1951 if (phba->sli_rev == LPFC_SLI_REV4) 1952 status = -EINVAL; 1953 else 1954 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1955 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1956 if (phba->sli_rev == LPFC_SLI_REV4) 1957 status = -EINVAL; 1958 else 1959 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1960 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1961 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1962 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1963 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1964 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1965 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1966 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1967 == 0) 1968 status = lpfc_reset_pci_bus(phba); 1969 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1970 lpfc_issue_hb_tmo(phba); 1971 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1972 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1973 else 1974 status = -EINVAL; 1975 1976 board_mode_out: 1977 if (!status) 1978 return strlen(buf); 1979 else { 1980 board_mode_str = strchr(buf, '\n'); 1981 if (board_mode_str) 1982 *board_mode_str = '\0'; 1983 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1984 "3097 Failed \"%s\", status(%d), " 1985 "fc_flag(x%x)\n", 1986 buf, status, phba->pport->fc_flag); 1987 return status; 1988 } 1989 } 1990 1991 /** 1992 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1993 * @phba: pointer to the adapter structure. 1994 * @mxri: max xri count. 1995 * @axri: available xri count. 1996 * @mrpi: max rpi count. 1997 * @arpi: available rpi count. 1998 * @mvpi: max vpi count. 1999 * @avpi: available vpi count. 2000 * 2001 * Description: 2002 * If an integer pointer for an count is not null then the value for the 2003 * count is returned. 2004 * 2005 * Returns: 2006 * zero on error 2007 * one for success 2008 **/ 2009 static int 2010 lpfc_get_hba_info(struct lpfc_hba *phba, 2011 uint32_t *mxri, uint32_t *axri, 2012 uint32_t *mrpi, uint32_t *arpi, 2013 uint32_t *mvpi, uint32_t *avpi) 2014 { 2015 struct lpfc_mbx_read_config *rd_config; 2016 LPFC_MBOXQ_t *pmboxq; 2017 MAILBOX_t *pmb; 2018 int rc = 0; 2019 uint32_t max_vpi; 2020 2021 /* 2022 * prevent udev from issuing mailbox commands until the port is 2023 * configured. 2024 */ 2025 if (phba->link_state < LPFC_LINK_DOWN || 2026 !phba->mbox_mem_pool || 2027 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 2028 return 0; 2029 2030 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 2031 return 0; 2032 2033 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2034 if (!pmboxq) 2035 return 0; 2036 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 2037 2038 pmb = &pmboxq->u.mb; 2039 pmb->mbxCommand = MBX_READ_CONFIG; 2040 pmb->mbxOwner = OWN_HOST; 2041 pmboxq->ctx_buf = NULL; 2042 2043 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2044 rc = MBX_NOT_FINISHED; 2045 else 2046 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 2047 2048 if (rc != MBX_SUCCESS) { 2049 if (rc != MBX_TIMEOUT) 2050 mempool_free(pmboxq, phba->mbox_mem_pool); 2051 return 0; 2052 } 2053 2054 if (phba->sli_rev == LPFC_SLI_REV4) { 2055 rd_config = &pmboxq->u.mqe.un.rd_config; 2056 if (mrpi) 2057 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 2058 if (arpi) 2059 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 2060 phba->sli4_hba.max_cfg_param.rpi_used; 2061 if (mxri) 2062 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 2063 if (axri) 2064 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 2065 phba->sli4_hba.max_cfg_param.xri_used; 2066 2067 /* Account for differences with SLI-3. Get vpi count from 2068 * mailbox data and subtract one for max vpi value. 2069 */ 2070 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 2071 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 2072 2073 /* Limit the max we support */ 2074 if (max_vpi > LPFC_MAX_VPI) 2075 max_vpi = LPFC_MAX_VPI; 2076 if (mvpi) 2077 *mvpi = max_vpi; 2078 if (avpi) 2079 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 2080 } else { 2081 if (mrpi) 2082 *mrpi = pmb->un.varRdConfig.max_rpi; 2083 if (arpi) 2084 *arpi = pmb->un.varRdConfig.avail_rpi; 2085 if (mxri) 2086 *mxri = pmb->un.varRdConfig.max_xri; 2087 if (axri) 2088 *axri = pmb->un.varRdConfig.avail_xri; 2089 if (mvpi) 2090 *mvpi = pmb->un.varRdConfig.max_vpi; 2091 if (avpi) { 2092 /* avail_vpi is only valid if link is up and ready */ 2093 if (phba->link_state == LPFC_HBA_READY) 2094 *avpi = pmb->un.varRdConfig.avail_vpi; 2095 else 2096 *avpi = pmb->un.varRdConfig.max_vpi; 2097 } 2098 } 2099 2100 mempool_free(pmboxq, phba->mbox_mem_pool); 2101 return 1; 2102 } 2103 2104 /** 2105 * lpfc_max_rpi_show - Return maximum rpi 2106 * @dev: class device that is converted into a Scsi_host. 2107 * @attr: device attribute, not used. 2108 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 2109 * 2110 * Description: 2111 * Calls lpfc_get_hba_info() asking for just the mrpi count. 2112 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2113 * to "Unknown" and the buffer length is returned, therefore the caller 2114 * must check for "Unknown" in the buffer to detect a failure. 2115 * 2116 * Returns: size of formatted string. 2117 **/ 2118 static ssize_t 2119 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 2120 char *buf) 2121 { 2122 struct Scsi_Host *shost = class_to_shost(dev); 2123 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2124 struct lpfc_hba *phba = vport->phba; 2125 uint32_t cnt; 2126 2127 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 2128 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2129 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2130 } 2131 2132 /** 2133 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 2134 * @dev: class device that is converted into a Scsi_host. 2135 * @attr: device attribute, not used. 2136 * @buf: containing the used rpi count in decimal or "Unknown". 2137 * 2138 * Description: 2139 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 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_used_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, acnt; 2154 2155 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 2156 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2157 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2158 } 2159 2160 /** 2161 * lpfc_max_xri_show - Return maximum xri 2162 * @dev: class device that is converted into a Scsi_host. 2163 * @attr: device attribute, not used. 2164 * @buf: on return contains the maximum xri count in decimal or "Unknown". 2165 * 2166 * Description: 2167 * Calls lpfc_get_hba_info() asking for just the mrpi count. 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_max_xri_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; 2182 2183 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2184 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2185 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2186 } 2187 2188 /** 2189 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2190 * @dev: class device that is converted into a Scsi_host. 2191 * @attr: device attribute, not used. 2192 * @buf: on return contains the used xri count in decimal or "Unknown". 2193 * 2194 * Description: 2195 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 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_used_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, acnt; 2210 2211 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2212 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2213 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2214 } 2215 2216 /** 2217 * lpfc_max_vpi_show - Return maximum vpi 2218 * @dev: class device that is converted into a Scsi_host. 2219 * @attr: device attribute, not used. 2220 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2221 * 2222 * Description: 2223 * Calls lpfc_get_hba_info() asking for just the mvpi count. 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_max_vpi_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; 2238 2239 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2240 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2241 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2242 } 2243 2244 /** 2245 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2246 * @dev: class device that is converted into a Scsi_host. 2247 * @attr: device attribute, not used. 2248 * @buf: on return contains the used vpi count in decimal or "Unknown". 2249 * 2250 * Description: 2251 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 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_used_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, acnt; 2266 2267 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2268 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2269 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2270 } 2271 2272 /** 2273 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2274 * @dev: class device that is converted into a Scsi_host. 2275 * @attr: device attribute, not used. 2276 * @buf: text that must be interpreted to determine if npiv is supported. 2277 * 2278 * Description: 2279 * Buffer will contain text indicating npiv is not suppoerted on the port, 2280 * the port is an NPIV physical port, or it is an npiv virtual port with 2281 * the id of the vport. 2282 * 2283 * Returns: size of formatted string. 2284 **/ 2285 static ssize_t 2286 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2287 char *buf) 2288 { 2289 struct Scsi_Host *shost = class_to_shost(dev); 2290 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2291 struct lpfc_hba *phba = vport->phba; 2292 2293 if (!(phba->max_vpi)) 2294 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2295 if (vport->port_type == LPFC_PHYSICAL_PORT) 2296 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2297 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2298 } 2299 2300 /** 2301 * lpfc_poll_show - Return text about poll support for the adapter 2302 * @dev: class device that is converted into a Scsi_host. 2303 * @attr: device attribute, not used. 2304 * @buf: on return contains the cfg_poll in hex. 2305 * 2306 * Notes: 2307 * cfg_poll should be a lpfc_polling_flags type. 2308 * 2309 * Returns: size of formatted string. 2310 **/ 2311 static ssize_t 2312 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2313 char *buf) 2314 { 2315 struct Scsi_Host *shost = class_to_shost(dev); 2316 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2317 struct lpfc_hba *phba = vport->phba; 2318 2319 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2320 } 2321 2322 /** 2323 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2324 * @dev: class device that is converted into a Scsi_host. 2325 * @attr: device attribute, not used. 2326 * @buf: one or more lpfc_polling_flags values. 2327 * @count: not used. 2328 * 2329 * Notes: 2330 * buf contents converted to integer and checked for a valid value. 2331 * 2332 * Returns: 2333 * -EINVAL if the buffer connot be converted or is out of range 2334 * length of the buf on success 2335 **/ 2336 static ssize_t 2337 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2338 const char *buf, size_t count) 2339 { 2340 struct Scsi_Host *shost = class_to_shost(dev); 2341 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2342 struct lpfc_hba *phba = vport->phba; 2343 uint32_t creg_val; 2344 uint32_t old_val; 2345 int val=0; 2346 2347 if (!isdigit(buf[0])) 2348 return -EINVAL; 2349 2350 if (sscanf(buf, "%i", &val) != 1) 2351 return -EINVAL; 2352 2353 if ((val & 0x3) != val) 2354 return -EINVAL; 2355 2356 if (phba->sli_rev == LPFC_SLI_REV4) 2357 val = 0; 2358 2359 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2360 "3051 lpfc_poll changed from %d to %d\n", 2361 phba->cfg_poll, val); 2362 2363 spin_lock_irq(&phba->hbalock); 2364 2365 old_val = phba->cfg_poll; 2366 2367 if (val & ENABLE_FCP_RING_POLLING) { 2368 if ((val & DISABLE_FCP_RING_INT) && 2369 !(old_val & DISABLE_FCP_RING_INT)) { 2370 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2371 spin_unlock_irq(&phba->hbalock); 2372 return -EINVAL; 2373 } 2374 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2375 writel(creg_val, phba->HCregaddr); 2376 readl(phba->HCregaddr); /* flush */ 2377 2378 lpfc_poll_start_timer(phba); 2379 } 2380 } else if (val != 0x0) { 2381 spin_unlock_irq(&phba->hbalock); 2382 return -EINVAL; 2383 } 2384 2385 if (!(val & DISABLE_FCP_RING_INT) && 2386 (old_val & DISABLE_FCP_RING_INT)) 2387 { 2388 spin_unlock_irq(&phba->hbalock); 2389 del_timer(&phba->fcp_poll_timer); 2390 spin_lock_irq(&phba->hbalock); 2391 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2392 spin_unlock_irq(&phba->hbalock); 2393 return -EINVAL; 2394 } 2395 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2396 writel(creg_val, phba->HCregaddr); 2397 readl(phba->HCregaddr); /* flush */ 2398 } 2399 2400 phba->cfg_poll = val; 2401 2402 spin_unlock_irq(&phba->hbalock); 2403 2404 return strlen(buf); 2405 } 2406 2407 /** 2408 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2409 * @dev: class converted to a Scsi_host structure. 2410 * @attr: device attribute, not used. 2411 * @buf: on return contains the formatted support level. 2412 * 2413 * Description: 2414 * Returns the maximum number of virtual functions a physical function can 2415 * support, 0 will be returned if called on virtual function. 2416 * 2417 * Returns: size of formatted string. 2418 **/ 2419 static ssize_t 2420 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2421 struct device_attribute *attr, 2422 char *buf) 2423 { 2424 struct Scsi_Host *shost = class_to_shost(dev); 2425 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2426 struct lpfc_hba *phba = vport->phba; 2427 uint16_t max_nr_virtfn; 2428 2429 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2430 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2431 } 2432 2433 /** 2434 * lpfc_enable_bbcr_set: Sets an attribute value. 2435 * @phba: pointer the the adapter structure. 2436 * @val: integer attribute value. 2437 * 2438 * Description: 2439 * Validates the min and max values then sets the 2440 * adapter config field if in the valid range. prints error message 2441 * and does not set the parameter if invalid. 2442 * 2443 * Returns: 2444 * zero on success 2445 * -EINVAL if val is invalid 2446 */ 2447 static ssize_t 2448 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2449 { 2450 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2452 "3068 lpfc_enable_bbcr changed from %d to " 2453 "%d\n", phba->cfg_enable_bbcr, val); 2454 phba->cfg_enable_bbcr = val; 2455 return 0; 2456 } 2457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2458 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2459 "1\n", val); 2460 return -EINVAL; 2461 } 2462 2463 /* 2464 * lpfc_param_show - Return a cfg attribute value in decimal 2465 * 2466 * Description: 2467 * Macro that given an attr e.g. hba_queue_depth expands 2468 * into a function with the name lpfc_hba_queue_depth_show. 2469 * 2470 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2471 * @dev: class device that is converted into a Scsi_host. 2472 * @attr: device attribute, not used. 2473 * @buf: on return contains the attribute value in decimal. 2474 * 2475 * Returns: size of formatted string. 2476 **/ 2477 #define lpfc_param_show(attr) \ 2478 static ssize_t \ 2479 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2480 char *buf) \ 2481 { \ 2482 struct Scsi_Host *shost = class_to_shost(dev);\ 2483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2484 struct lpfc_hba *phba = vport->phba;\ 2485 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2486 phba->cfg_##attr);\ 2487 } 2488 2489 /* 2490 * lpfc_param_hex_show - Return a cfg attribute value in hex 2491 * 2492 * Description: 2493 * Macro that given an attr e.g. hba_queue_depth expands 2494 * into a function with the name lpfc_hba_queue_depth_show 2495 * 2496 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2497 * @dev: class device that is converted into a Scsi_host. 2498 * @attr: device attribute, not used. 2499 * @buf: on return contains the attribute value in hexadecimal. 2500 * 2501 * Returns: size of formatted string. 2502 **/ 2503 #define lpfc_param_hex_show(attr) \ 2504 static ssize_t \ 2505 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2506 char *buf) \ 2507 { \ 2508 struct Scsi_Host *shost = class_to_shost(dev);\ 2509 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2510 struct lpfc_hba *phba = vport->phba;\ 2511 uint val = 0;\ 2512 val = phba->cfg_##attr;\ 2513 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2514 phba->cfg_##attr);\ 2515 } 2516 2517 /* 2518 * lpfc_param_init - Initializes a cfg attribute 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_init. The macro also 2523 * takes a default argument, a minimum and maximum argument. 2524 * 2525 * lpfc_##attr##_init: Initializes an attribute. 2526 * @phba: pointer the the adapter structure. 2527 * @val: integer attribute value. 2528 * 2529 * Validates the min and max values then sets the adapter config field 2530 * accordingly, or uses the default if out of range and prints an error message. 2531 * 2532 * Returns: 2533 * zero on success 2534 * -EINVAL if default used 2535 **/ 2536 #define lpfc_param_init(attr, default, minval, maxval) \ 2537 static int \ 2538 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2539 { \ 2540 if (lpfc_rangecheck(val, minval, maxval)) {\ 2541 phba->cfg_##attr = val;\ 2542 return 0;\ 2543 }\ 2544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2545 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2546 "allowed range is ["#minval", "#maxval"]\n", val); \ 2547 phba->cfg_##attr = default;\ 2548 return -EINVAL;\ 2549 } 2550 2551 /* 2552 * lpfc_param_set - Set a cfg attribute value 2553 * 2554 * Description: 2555 * Macro that given an attr e.g. hba_queue_depth expands 2556 * into a function with the name lpfc_hba_queue_depth_set 2557 * 2558 * lpfc_##attr##_set: Sets an attribute value. 2559 * @phba: pointer the the adapter structure. 2560 * @val: integer attribute value. 2561 * 2562 * Description: 2563 * Validates the min and max values then sets the 2564 * adapter config field if in the valid range. prints error message 2565 * and does not set the parameter if invalid. 2566 * 2567 * Returns: 2568 * zero on success 2569 * -EINVAL if val is invalid 2570 **/ 2571 #define lpfc_param_set(attr, default, minval, maxval) \ 2572 static int \ 2573 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2574 { \ 2575 if (lpfc_rangecheck(val, minval, maxval)) {\ 2576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2577 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2578 phba->cfg_##attr, val); \ 2579 phba->cfg_##attr = val;\ 2580 return 0;\ 2581 }\ 2582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2583 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2584 "allowed range is ["#minval", "#maxval"]\n", val); \ 2585 return -EINVAL;\ 2586 } 2587 2588 /* 2589 * lpfc_param_store - Set a vport attribute value 2590 * 2591 * Description: 2592 * Macro that given an attr e.g. hba_queue_depth expands 2593 * into a function with the name lpfc_hba_queue_depth_store. 2594 * 2595 * lpfc_##attr##_store: Set an sttribute value. 2596 * @dev: class device that is converted into a Scsi_host. 2597 * @attr: device attribute, not used. 2598 * @buf: contains the attribute value in ascii. 2599 * @count: not used. 2600 * 2601 * Description: 2602 * Convert the ascii text number to an integer, then 2603 * use the lpfc_##attr##_set function to set the value. 2604 * 2605 * Returns: 2606 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2607 * length of buffer upon success. 2608 **/ 2609 #define lpfc_param_store(attr) \ 2610 static ssize_t \ 2611 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2612 const char *buf, size_t count) \ 2613 { \ 2614 struct Scsi_Host *shost = class_to_shost(dev);\ 2615 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2616 struct lpfc_hba *phba = vport->phba;\ 2617 uint val = 0;\ 2618 if (!isdigit(buf[0]))\ 2619 return -EINVAL;\ 2620 if (sscanf(buf, "%i", &val) != 1)\ 2621 return -EINVAL;\ 2622 if (lpfc_##attr##_set(phba, val) == 0) \ 2623 return strlen(buf);\ 2624 else \ 2625 return -EINVAL;\ 2626 } 2627 2628 /* 2629 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2630 * 2631 * Description: 2632 * Macro that given an attr e.g. hba_queue_depth expands 2633 * into a function with the name lpfc_hba_queue_depth_show 2634 * 2635 * lpfc_##attr##_show: prints the attribute value in decimal. 2636 * @dev: class device that is converted into a Scsi_host. 2637 * @attr: device attribute, not used. 2638 * @buf: on return contains the attribute value in decimal. 2639 * 2640 * Returns: length of formatted string. 2641 **/ 2642 #define lpfc_vport_param_show(attr) \ 2643 static ssize_t \ 2644 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2645 char *buf) \ 2646 { \ 2647 struct Scsi_Host *shost = class_to_shost(dev);\ 2648 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2649 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2650 } 2651 2652 /* 2653 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2654 * 2655 * Description: 2656 * Macro that given an attr e.g. 2657 * hba_queue_depth expands into a function with the name 2658 * lpfc_hba_queue_depth_show 2659 * 2660 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2661 * @dev: class device that is converted into a Scsi_host. 2662 * @attr: device attribute, not used. 2663 * @buf: on return contains the attribute value in hexadecimal. 2664 * 2665 * Returns: length of formatted string. 2666 **/ 2667 #define lpfc_vport_param_hex_show(attr) \ 2668 static ssize_t \ 2669 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2670 char *buf) \ 2671 { \ 2672 struct Scsi_Host *shost = class_to_shost(dev);\ 2673 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2674 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2675 } 2676 2677 /* 2678 * lpfc_vport_param_init - Initialize a vport cfg attribute 2679 * 2680 * Description: 2681 * Macro that given an attr e.g. hba_queue_depth expands 2682 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2683 * takes a default argument, a minimum and maximum argument. 2684 * 2685 * lpfc_##attr##_init: validates the min and max values then sets the 2686 * adapter config field accordingly, or uses the default if out of range 2687 * and prints an error message. 2688 * @phba: pointer the the adapter structure. 2689 * @val: integer attribute value. 2690 * 2691 * Returns: 2692 * zero on success 2693 * -EINVAL if default used 2694 **/ 2695 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2696 static int \ 2697 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2698 { \ 2699 if (lpfc_rangecheck(val, minval, maxval)) {\ 2700 vport->cfg_##attr = val;\ 2701 return 0;\ 2702 }\ 2703 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2704 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2705 "allowed range is ["#minval", "#maxval"]\n", val); \ 2706 vport->cfg_##attr = default;\ 2707 return -EINVAL;\ 2708 } 2709 2710 /* 2711 * lpfc_vport_param_set - Set a vport cfg attribute 2712 * 2713 * Description: 2714 * Macro that given an attr e.g. hba_queue_depth expands 2715 * into a function with the name lpfc_hba_queue_depth_set 2716 * 2717 * lpfc_##attr##_set: validates the min and max values then sets the 2718 * adapter config field if in the valid range. prints error message 2719 * and does not set the parameter if invalid. 2720 * @phba: pointer the the adapter structure. 2721 * @val: integer attribute value. 2722 * 2723 * Returns: 2724 * zero on success 2725 * -EINVAL if val is invalid 2726 **/ 2727 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2728 static int \ 2729 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2730 { \ 2731 if (lpfc_rangecheck(val, minval, maxval)) {\ 2732 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2733 "3053 lpfc_" #attr \ 2734 " changed from %d (x%x) to %d (x%x)\n", \ 2735 vport->cfg_##attr, vport->cfg_##attr, \ 2736 val, val); \ 2737 vport->cfg_##attr = val;\ 2738 return 0;\ 2739 }\ 2740 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2741 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2742 "allowed range is ["#minval", "#maxval"]\n", val); \ 2743 return -EINVAL;\ 2744 } 2745 2746 /* 2747 * lpfc_vport_param_store - Set a vport attribute 2748 * 2749 * Description: 2750 * Macro that given an attr e.g. hba_queue_depth 2751 * expands into a function with the name lpfc_hba_queue_depth_store 2752 * 2753 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2754 * use the lpfc_##attr##_set function to set the value. 2755 * @cdev: class device that is converted into a Scsi_host. 2756 * @buf: contains the attribute value in decimal. 2757 * @count: not used. 2758 * 2759 * Returns: 2760 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2761 * length of buffer upon success. 2762 **/ 2763 #define lpfc_vport_param_store(attr) \ 2764 static ssize_t \ 2765 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2766 const char *buf, size_t count) \ 2767 { \ 2768 struct Scsi_Host *shost = class_to_shost(dev);\ 2769 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2770 uint val = 0;\ 2771 if (!isdigit(buf[0]))\ 2772 return -EINVAL;\ 2773 if (sscanf(buf, "%i", &val) != 1)\ 2774 return -EINVAL;\ 2775 if (lpfc_##attr##_set(vport, val) == 0) \ 2776 return strlen(buf);\ 2777 else \ 2778 return -EINVAL;\ 2779 } 2780 2781 2782 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2783 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2784 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2785 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2786 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2787 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2788 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2789 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2790 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2791 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2792 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2793 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2794 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2795 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2796 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2797 lpfc_link_state_store); 2798 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2799 lpfc_option_rom_version_show, NULL); 2800 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2801 lpfc_num_discovered_ports_show, NULL); 2802 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2803 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2804 static DEVICE_ATTR_RO(lpfc_drvr_version); 2805 static DEVICE_ATTR_RO(lpfc_enable_fip); 2806 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2807 lpfc_board_mode_show, lpfc_board_mode_store); 2808 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2809 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2810 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2811 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2812 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2813 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2814 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2815 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2816 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2817 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2818 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2819 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2820 NULL); 2821 static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); 2822 2823 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2824 #define WWN_SZ 8 2825 /** 2826 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2827 * @buf: WWN string. 2828 * @cnt: Length of string. 2829 * @wwn: Array to receive converted wwn value. 2830 * 2831 * Returns: 2832 * -EINVAL if the buffer does not contain a valid wwn 2833 * 0 success 2834 **/ 2835 static size_t 2836 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2837 { 2838 unsigned int i, j; 2839 2840 /* Count may include a LF at end of string */ 2841 if (buf[cnt-1] == '\n') 2842 cnt--; 2843 2844 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2845 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2846 return -EINVAL; 2847 2848 memset(wwn, 0, WWN_SZ); 2849 2850 /* Validate and store the new name */ 2851 for (i = 0, j = 0; i < 16; i++) { 2852 if ((*buf >= 'a') && (*buf <= 'f')) 2853 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2854 else if ((*buf >= 'A') && (*buf <= 'F')) 2855 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2856 else if ((*buf >= '0') && (*buf <= '9')) 2857 j = ((j << 4) | (*buf++ - '0')); 2858 else 2859 return -EINVAL; 2860 if (i % 2) { 2861 wwn[i/2] = j & 0xff; 2862 j = 0; 2863 } 2864 } 2865 return 0; 2866 } 2867 /** 2868 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2869 * @dev: class device that is converted into a Scsi_host. 2870 * @attr: device attribute, not used. 2871 * @buf: containing the string lpfc_soft_wwn_key. 2872 * @count: must be size of lpfc_soft_wwn_key. 2873 * 2874 * Returns: 2875 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2876 * length of buf indicates success 2877 **/ 2878 static ssize_t 2879 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2880 const char *buf, size_t count) 2881 { 2882 struct Scsi_Host *shost = class_to_shost(dev); 2883 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2884 struct lpfc_hba *phba = vport->phba; 2885 unsigned int cnt = count; 2886 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2887 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2888 2889 /* 2890 * We're doing a simple sanity check for soft_wwpn setting. 2891 * We require that the user write a specific key to enable 2892 * the soft_wwpn attribute to be settable. Once the attribute 2893 * is written, the enable key resets. If further updates are 2894 * desired, the key must be written again to re-enable the 2895 * attribute. 2896 * 2897 * The "key" is not secret - it is a hardcoded string shown 2898 * here. The intent is to protect against the random user or 2899 * application that is just writing attributes. 2900 */ 2901 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2903 "0051 lpfc soft wwpn can not be enabled: " 2904 "fawwpn is enabled\n"); 2905 return -EINVAL; 2906 } 2907 2908 /* count may include a LF at end of string */ 2909 if (buf[cnt-1] == '\n') 2910 cnt--; 2911 2912 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2913 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2914 return -EINVAL; 2915 2916 phba->soft_wwn_enable = 1; 2917 2918 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2919 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2920 phba->brd_no); 2921 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2922 " The soft_wwpn feature is not supported by Broadcom."); 2923 2924 return count; 2925 } 2926 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2927 2928 /** 2929 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2930 * @dev: class device that is converted into a Scsi_host. 2931 * @attr: device attribute, not used. 2932 * @buf: on return contains the wwpn in hexadecimal. 2933 * 2934 * Returns: size of formatted string. 2935 **/ 2936 static ssize_t 2937 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2938 char *buf) 2939 { 2940 struct Scsi_Host *shost = class_to_shost(dev); 2941 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2942 struct lpfc_hba *phba = vport->phba; 2943 2944 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2945 (unsigned long long)phba->cfg_soft_wwpn); 2946 } 2947 2948 /** 2949 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2950 * @dev: class device that is converted into a Scsi_host. 2951 * @attr: device attribute, not used. 2952 * @buf: contains the wwpn in hexadecimal. 2953 * @count: number of wwpn bytes in buf 2954 * 2955 * Returns: 2956 * -EACCES hba reset not enabled, adapter over temp 2957 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2958 * -EIO error taking adapter offline or online 2959 * value of count on success 2960 **/ 2961 static ssize_t 2962 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2963 const char *buf, size_t count) 2964 { 2965 struct Scsi_Host *shost = class_to_shost(dev); 2966 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2967 struct lpfc_hba *phba = vport->phba; 2968 struct completion online_compl; 2969 int stat1 = 0, stat2 = 0; 2970 unsigned int cnt = count; 2971 u8 wwpn[WWN_SZ]; 2972 int rc; 2973 2974 if (!phba->cfg_enable_hba_reset) 2975 return -EACCES; 2976 spin_lock_irq(&phba->hbalock); 2977 if (phba->over_temp_state == HBA_OVER_TEMP) { 2978 spin_unlock_irq(&phba->hbalock); 2979 return -EACCES; 2980 } 2981 spin_unlock_irq(&phba->hbalock); 2982 /* count may include a LF at end of string */ 2983 if (buf[cnt-1] == '\n') 2984 cnt--; 2985 2986 if (!phba->soft_wwn_enable) 2987 return -EINVAL; 2988 2989 /* lock setting wwpn, wwnn down */ 2990 phba->soft_wwn_enable = 0; 2991 2992 rc = lpfc_wwn_set(buf, cnt, wwpn); 2993 if (rc) { 2994 /* not able to set wwpn, unlock it */ 2995 phba->soft_wwn_enable = 1; 2996 return rc; 2997 } 2998 2999 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 3000 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 3001 if (phba->cfg_soft_wwnn) 3002 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 3003 3004 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 3005 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 3006 3007 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 3008 if (stat1) 3009 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3010 "0463 lpfc_soft_wwpn attribute set failed to " 3011 "reinit adapter - %d\n", stat1); 3012 init_completion(&online_compl); 3013 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 3014 LPFC_EVT_ONLINE); 3015 if (rc == 0) 3016 return -ENOMEM; 3017 3018 wait_for_completion(&online_compl); 3019 if (stat2) 3020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3021 "0464 lpfc_soft_wwpn attribute set failed to " 3022 "reinit adapter - %d\n", stat2); 3023 return (stat1 || stat2) ? -EIO : count; 3024 } 3025 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 3026 3027 /** 3028 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 3029 * @dev: class device that is converted into a Scsi_host. 3030 * @attr: device attribute, not used. 3031 * @buf: on return contains the wwnn in hexadecimal. 3032 * 3033 * Returns: size of formatted string. 3034 **/ 3035 static ssize_t 3036 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 3037 char *buf) 3038 { 3039 struct Scsi_Host *shost = class_to_shost(dev); 3040 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3041 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3042 (unsigned long long)phba->cfg_soft_wwnn); 3043 } 3044 3045 /** 3046 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 3047 * @dev: class device that is converted into a Scsi_host. 3048 * @attr: device attribute, not used. 3049 * @buf: contains the ww node name in hexadecimal. 3050 * @count: number of wwnn bytes in buf. 3051 * 3052 * Returns: 3053 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 3054 * value of count on success 3055 **/ 3056 static ssize_t 3057 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 3058 const char *buf, size_t count) 3059 { 3060 struct Scsi_Host *shost = class_to_shost(dev); 3061 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3062 unsigned int cnt = count; 3063 u8 wwnn[WWN_SZ]; 3064 int rc; 3065 3066 /* count may include a LF at end of string */ 3067 if (buf[cnt-1] == '\n') 3068 cnt--; 3069 3070 if (!phba->soft_wwn_enable) 3071 return -EINVAL; 3072 3073 rc = lpfc_wwn_set(buf, cnt, wwnn); 3074 if (rc) { 3075 /* Allow wwnn to be set many times, as long as the enable 3076 * is set. However, once the wwpn is set, everything locks. 3077 */ 3078 return rc; 3079 } 3080 3081 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 3082 3083 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 3084 "lpfc%d: soft_wwnn set. Value will take effect upon " 3085 "setting of the soft_wwpn\n", phba->brd_no); 3086 3087 return count; 3088 } 3089 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 3090 3091 /** 3092 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 3093 * Optimized Access Storage (OAS) operations. 3094 * @dev: class device that is converted into a Scsi_host. 3095 * @attr: device attribute, not used. 3096 * @buf: buffer for passing information. 3097 * 3098 * Returns: 3099 * value of count 3100 **/ 3101 static ssize_t 3102 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 3103 char *buf) 3104 { 3105 struct Scsi_Host *shost = class_to_shost(dev); 3106 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3107 3108 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3109 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3110 } 3111 3112 /** 3113 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3114 * Optimized Access Storage (OAS) operations. 3115 * @dev: class device that is converted into a Scsi_host. 3116 * @attr: device attribute, not used. 3117 * @buf: buffer for passing information. 3118 * @count: Size of the data buffer. 3119 * 3120 * Returns: 3121 * -EINVAL count is invalid, invalid wwpn byte invalid 3122 * -EPERM oas is not supported by hba 3123 * value of count on success 3124 **/ 3125 static ssize_t 3126 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3127 const char *buf, size_t count) 3128 { 3129 struct Scsi_Host *shost = class_to_shost(dev); 3130 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3131 unsigned int cnt = count; 3132 uint8_t wwpn[WWN_SZ]; 3133 int rc; 3134 3135 if (!phba->cfg_fof) 3136 return -EPERM; 3137 3138 /* count may include a LF at end of string */ 3139 if (buf[cnt-1] == '\n') 3140 cnt--; 3141 3142 rc = lpfc_wwn_set(buf, cnt, wwpn); 3143 if (rc) 3144 return rc; 3145 3146 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3147 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3148 if (wwn_to_u64(wwpn) == 0) 3149 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3150 else 3151 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3152 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3153 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3154 return count; 3155 } 3156 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3157 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3158 3159 /** 3160 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3161 * Optimized Access Storage (OAS) operations. 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 * value of count 3168 **/ 3169 static ssize_t 3170 lpfc_oas_priority_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 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3177 } 3178 3179 /** 3180 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3181 * Optimized Access Storage (OAS) operations. 3182 * @dev: class device that is converted into a Scsi_host. 3183 * @attr: device attribute, not used. 3184 * @buf: buffer for passing information. 3185 * @count: Size of the data buffer. 3186 * 3187 * Returns: 3188 * -EINVAL count is invalid, invalid wwpn byte invalid 3189 * -EPERM oas is not supported by hba 3190 * value of count on success 3191 **/ 3192 static ssize_t 3193 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3194 const char *buf, size_t count) 3195 { 3196 struct Scsi_Host *shost = class_to_shost(dev); 3197 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3198 unsigned int cnt = count; 3199 unsigned long val; 3200 int ret; 3201 3202 if (!phba->cfg_fof) 3203 return -EPERM; 3204 3205 /* count may include a LF at end of string */ 3206 if (buf[cnt-1] == '\n') 3207 cnt--; 3208 3209 ret = kstrtoul(buf, 0, &val); 3210 if (ret || (val > 0x7f)) 3211 return -EINVAL; 3212 3213 if (val) 3214 phba->cfg_oas_priority = (uint8_t)val; 3215 else 3216 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3217 return count; 3218 } 3219 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3220 lpfc_oas_priority_show, lpfc_oas_priority_store); 3221 3222 /** 3223 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3224 * for Optimized Access Storage (OAS) operations. 3225 * @dev: class device that is converted into a Scsi_host. 3226 * @attr: device attribute, not used. 3227 * @buf: buffer for passing information. 3228 * 3229 * Returns: 3230 * value of count on success 3231 **/ 3232 static ssize_t 3233 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3234 char *buf) 3235 { 3236 struct Scsi_Host *shost = class_to_shost(dev); 3237 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3238 3239 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3240 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3241 } 3242 3243 /** 3244 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3245 * for Optimized Access Storage (OAS) operations. 3246 * @dev: class device that is converted into a Scsi_host. 3247 * @attr: device attribute, not used. 3248 * @buf: buffer for passing information. 3249 * @count: Size of the data buffer. 3250 * 3251 * Returns: 3252 * -EINVAL count is invalid, invalid wwpn byte invalid 3253 * -EPERM oas is not supported by hba 3254 * value of count on success 3255 **/ 3256 static ssize_t 3257 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3258 const char *buf, size_t count) 3259 { 3260 struct Scsi_Host *shost = class_to_shost(dev); 3261 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3262 unsigned int cnt = count; 3263 uint8_t wwpn[WWN_SZ]; 3264 int rc; 3265 3266 if (!phba->cfg_fof) 3267 return -EPERM; 3268 3269 /* count may include a LF at end of string */ 3270 if (buf[cnt-1] == '\n') 3271 cnt--; 3272 3273 rc = lpfc_wwn_set(buf, cnt, wwpn); 3274 if (rc) 3275 return rc; 3276 3277 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3278 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3279 if (wwn_to_u64(wwpn) == 0) 3280 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3281 else 3282 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3283 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3284 if (phba->cfg_oas_priority == 0) 3285 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3286 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3287 return count; 3288 } 3289 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3290 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3291 3292 /** 3293 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3294 * of whether luns will be enabled or disabled 3295 * for Optimized Access Storage (OAS) operations. 3296 * @dev: class device that is converted into a Scsi_host. 3297 * @attr: device attribute, not used. 3298 * @buf: buffer for passing information. 3299 * 3300 * Returns: 3301 * size of formatted string. 3302 **/ 3303 static ssize_t 3304 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3305 char *buf) 3306 { 3307 struct Scsi_Host *shost = class_to_shost(dev); 3308 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3309 3310 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3311 } 3312 3313 /** 3314 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3315 * of whether luns will be enabled or disabled 3316 * for Optimized Access Storage (OAS) operations. 3317 * @dev: class device that is converted into a Scsi_host. 3318 * @attr: device attribute, not used. 3319 * @buf: buffer for passing information. 3320 * @count: Size of the data buffer. 3321 * 3322 * Returns: 3323 * -EINVAL count is invalid, invalid wwpn byte invalid 3324 * -EPERM oas is not supported by hba 3325 * value of count on success 3326 **/ 3327 static ssize_t 3328 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3329 const char *buf, size_t count) 3330 { 3331 struct Scsi_Host *shost = class_to_shost(dev); 3332 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3333 int val = 0; 3334 3335 if (!phba->cfg_fof) 3336 return -EPERM; 3337 3338 if (!isdigit(buf[0])) 3339 return -EINVAL; 3340 3341 if (sscanf(buf, "%i", &val) != 1) 3342 return -EINVAL; 3343 3344 if ((val != 0) && (val != 1)) 3345 return -EINVAL; 3346 3347 phba->cfg_oas_lun_state = val; 3348 return strlen(buf); 3349 } 3350 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3351 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3352 3353 /** 3354 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3355 * Storage (OAS) lun returned by the 3356 * lpfc_oas_lun_show function. 3357 * @dev: class device that is converted into a Scsi_host. 3358 * @attr: device attribute, not used. 3359 * @buf: buffer for passing information. 3360 * 3361 * Returns: 3362 * size of formatted string. 3363 **/ 3364 static ssize_t 3365 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3366 char *buf) 3367 { 3368 struct Scsi_Host *shost = class_to_shost(dev); 3369 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3370 3371 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3372 return -EFAULT; 3373 3374 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3375 } 3376 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3377 lpfc_oas_lun_status_show, NULL); 3378 3379 3380 /** 3381 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3382 * (OAS) operations. 3383 * @phba: lpfc_hba pointer. 3384 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3385 * @tgt_wwpn: wwpn of the target associated with the returned lun 3386 * @lun: the fc lun for setting oas state. 3387 * @oas_state: the oas state to be set to the lun. 3388 * @pri: priority 3389 * 3390 * Returns: 3391 * SUCCESS : 0 3392 * -EPERM OAS is not enabled or not supported by this port. 3393 * 3394 */ 3395 static size_t 3396 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3397 uint8_t tgt_wwpn[], uint64_t lun, 3398 uint32_t oas_state, uint8_t pri) 3399 { 3400 3401 int rc = 0; 3402 3403 if (!phba->cfg_fof) 3404 return -EPERM; 3405 3406 if (oas_state) { 3407 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3408 (struct lpfc_name *)tgt_wwpn, 3409 lun, pri)) 3410 rc = -ENOMEM; 3411 } else { 3412 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3413 (struct lpfc_name *)tgt_wwpn, lun, pri); 3414 } 3415 return rc; 3416 3417 } 3418 3419 /** 3420 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3421 * Access Storage (OAS) operations. 3422 * @phba: lpfc_hba pointer. 3423 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3424 * @tgt_wwpn: wwpn of the target associated with the returned lun 3425 * @lun_status: status of the lun returned lun 3426 * @lun_pri: priority of the lun returned lun 3427 * 3428 * Returns the first or next lun enabled for OAS operations for the vport/target 3429 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3430 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3431 * 3432 * Return: 3433 * lun that is OAS enabled for the vport/target 3434 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3435 */ 3436 static uint64_t 3437 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3438 uint8_t tgt_wwpn[], uint32_t *lun_status, 3439 uint32_t *lun_pri) 3440 { 3441 uint64_t found_lun; 3442 3443 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3444 return NOT_OAS_ENABLED_LUN; 3445 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3446 phba->sli4_hba.oas_next_vpt_wwpn, 3447 (struct lpfc_name *) 3448 phba->sli4_hba.oas_next_tgt_wwpn, 3449 &phba->sli4_hba.oas_next_lun, 3450 (struct lpfc_name *)vpt_wwpn, 3451 (struct lpfc_name *)tgt_wwpn, 3452 &found_lun, lun_status, lun_pri)) 3453 return found_lun; 3454 else 3455 return NOT_OAS_ENABLED_LUN; 3456 } 3457 3458 /** 3459 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3460 * @phba: lpfc_hba pointer. 3461 * @vpt_wwpn: vport wwpn by reference. 3462 * @tgt_wwpn: target wwpn by reference. 3463 * @lun: the fc lun for setting oas state. 3464 * @oas_state: the oas state to be set to the oas_lun. 3465 * @pri: priority 3466 * 3467 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3468 * a lun for OAS operations. 3469 * 3470 * Return: 3471 * SUCCESS: 0 3472 * -ENOMEM: failed to enable an lun for OAS operations 3473 * -EPERM: OAS is not enabled 3474 */ 3475 static ssize_t 3476 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3477 uint8_t tgt_wwpn[], uint64_t lun, 3478 uint32_t oas_state, uint8_t pri) 3479 { 3480 3481 int rc; 3482 3483 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3484 oas_state, pri); 3485 return rc; 3486 } 3487 3488 /** 3489 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3490 * @dev: class device that is converted into a Scsi_host. 3491 * @attr: device attribute, not used. 3492 * @buf: buffer for passing information. 3493 * 3494 * This routine returns a lun enabled for OAS each time the function 3495 * is called. 3496 * 3497 * Returns: 3498 * SUCCESS: size of formatted string. 3499 * -EFAULT: target or vport wwpn was not set properly. 3500 * -EPERM: oas is not enabled. 3501 **/ 3502 static ssize_t 3503 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3504 char *buf) 3505 { 3506 struct Scsi_Host *shost = class_to_shost(dev); 3507 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3508 3509 uint64_t oas_lun; 3510 int len = 0; 3511 3512 if (!phba->cfg_fof) 3513 return -EPERM; 3514 3515 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3516 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3517 return -EFAULT; 3518 3519 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3520 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3521 return -EFAULT; 3522 3523 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3524 phba->cfg_oas_tgt_wwpn, 3525 &phba->cfg_oas_lun_status, 3526 &phba->cfg_oas_priority); 3527 if (oas_lun != NOT_OAS_ENABLED_LUN) 3528 phba->cfg_oas_flags |= OAS_LUN_VALID; 3529 3530 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3531 3532 return len; 3533 } 3534 3535 /** 3536 * lpfc_oas_lun_store - Sets the OAS state for lun 3537 * @dev: class device that is converted into a Scsi_host. 3538 * @attr: device attribute, not used. 3539 * @buf: buffer for passing information. 3540 * @count: size of the formatting string 3541 * 3542 * This function sets the OAS state for lun. Before this function is called, 3543 * the vport wwpn, target wwpn, and oas state need to be set. 3544 * 3545 * Returns: 3546 * SUCCESS: size of formatted string. 3547 * -EFAULT: target or vport wwpn was not set properly. 3548 * -EPERM: oas is not enabled. 3549 * size of formatted string. 3550 **/ 3551 static ssize_t 3552 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3553 const char *buf, size_t count) 3554 { 3555 struct Scsi_Host *shost = class_to_shost(dev); 3556 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3557 uint64_t scsi_lun; 3558 uint32_t pri; 3559 ssize_t rc; 3560 3561 if (!phba->cfg_fof) 3562 return -EPERM; 3563 3564 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3565 return -EFAULT; 3566 3567 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3568 return -EFAULT; 3569 3570 if (!isdigit(buf[0])) 3571 return -EINVAL; 3572 3573 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3574 return -EINVAL; 3575 3576 pri = phba->cfg_oas_priority; 3577 if (pri == 0) 3578 pri = phba->cfg_XLanePriority; 3579 3580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3581 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3582 "priority 0x%x with oas state %d\n", 3583 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3584 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3585 pri, phba->cfg_oas_lun_state); 3586 3587 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3588 phba->cfg_oas_tgt_wwpn, scsi_lun, 3589 phba->cfg_oas_lun_state, pri); 3590 if (rc) 3591 return rc; 3592 3593 return count; 3594 } 3595 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3596 lpfc_oas_lun_show, lpfc_oas_lun_store); 3597 3598 int lpfc_enable_nvmet_cnt; 3599 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3600 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3601 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3602 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3603 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3604 3605 static int lpfc_poll = 0; 3606 module_param(lpfc_poll, int, S_IRUGO); 3607 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3608 " 0 - none," 3609 " 1 - poll with interrupts enabled" 3610 " 3 - poll and disable FCP ring interrupts"); 3611 3612 static DEVICE_ATTR_RW(lpfc_poll); 3613 3614 int lpfc_no_hba_reset_cnt; 3615 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3616 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3617 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3618 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3619 3620 LPFC_ATTR(sli_mode, 3, 3, 3, 3621 "SLI mode selector: 3 - select SLI-3"); 3622 3623 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3624 "Enable NPIV functionality"); 3625 3626 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3627 "FCF Fast failover=1 Priority failover=2"); 3628 3629 /* 3630 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3631 * aborted IO. 3632 * The range is [0,1]. Default value is 0 3633 * 0, IO completes after ABTS issued (default). 3634 * 1, IO completes after receipt of ABTS response or timeout. 3635 */ 3636 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3637 3638 /* 3639 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3640 # 0x0 = disabled, XRI/OXID use not tracked. 3641 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3642 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3643 */ 3644 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3645 "Enable RRQ functionality"); 3646 3647 /* 3648 # lpfc_suppress_link_up: Bring link up at initialization 3649 # 0x0 = bring link up (issue MBX_INIT_LINK) 3650 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3651 # 0x2 = never bring up link 3652 # Default value is 0. 3653 */ 3654 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3655 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3656 "Suppress Link Up at initialization"); 3657 3658 static ssize_t 3659 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3660 { 3661 struct Scsi_Host *shost = class_to_shost(dev); 3662 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3663 3664 return scnprintf(buf, PAGE_SIZE, "%d\n", 3665 phba->sli4_hba.pc_sli4_params.pls); 3666 } 3667 static DEVICE_ATTR(pls, 0444, 3668 lpfc_pls_show, NULL); 3669 3670 static ssize_t 3671 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3672 { 3673 struct Scsi_Host *shost = class_to_shost(dev); 3674 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3675 3676 return scnprintf(buf, PAGE_SIZE, "%d\n", 3677 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3678 } 3679 static DEVICE_ATTR(pt, 0444, 3680 lpfc_pt_show, NULL); 3681 3682 /* 3683 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3684 # 1 - (1024) 3685 # 2 - (2048) 3686 # 3 - (3072) 3687 # 4 - (4096) 3688 # 5 - (5120) 3689 */ 3690 static ssize_t 3691 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3692 { 3693 struct Scsi_Host *shost = class_to_shost(dev); 3694 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3695 3696 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3697 } 3698 3699 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3700 lpfc_iocb_hw_show, NULL); 3701 static ssize_t 3702 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3703 { 3704 struct Scsi_Host *shost = class_to_shost(dev); 3705 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3706 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3707 3708 return scnprintf(buf, PAGE_SIZE, "%d\n", 3709 pring ? pring->txq_max : 0); 3710 } 3711 3712 static DEVICE_ATTR(txq_hw, S_IRUGO, 3713 lpfc_txq_hw_show, NULL); 3714 static ssize_t 3715 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3716 char *buf) 3717 { 3718 struct Scsi_Host *shost = class_to_shost(dev); 3719 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3720 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3721 3722 return scnprintf(buf, PAGE_SIZE, "%d\n", 3723 pring ? pring->txcmplq_max : 0); 3724 } 3725 3726 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3727 lpfc_txcmplq_hw_show, NULL); 3728 3729 /* 3730 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3731 # until the timer expires. Value range is [0,255]. Default value is 30. 3732 */ 3733 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3734 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3735 module_param(lpfc_nodev_tmo, int, 0); 3736 MODULE_PARM_DESC(lpfc_nodev_tmo, 3737 "Seconds driver will hold I/O waiting " 3738 "for a device to come back"); 3739 3740 /** 3741 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3742 * @dev: class converted to a Scsi_host structure. 3743 * @attr: device attribute, not used. 3744 * @buf: on return contains the dev loss timeout in decimal. 3745 * 3746 * Returns: size of formatted string. 3747 **/ 3748 static ssize_t 3749 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3750 char *buf) 3751 { 3752 struct Scsi_Host *shost = class_to_shost(dev); 3753 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3754 3755 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3756 } 3757 3758 /** 3759 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3760 * @vport: lpfc vport structure pointer. 3761 * @val: contains the nodev timeout value. 3762 * 3763 * Description: 3764 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3765 * a kernel error message is printed and zero is returned. 3766 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3767 * Otherwise nodev tmo is set to the default value. 3768 * 3769 * Returns: 3770 * zero if already set or if val is in range 3771 * -EINVAL val out of range 3772 **/ 3773 static int 3774 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3775 { 3776 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3777 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3778 if (val != LPFC_DEF_DEVLOSS_TMO) 3779 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3780 "0407 Ignoring lpfc_nodev_tmo module " 3781 "parameter because lpfc_devloss_tmo " 3782 "is set.\n"); 3783 return 0; 3784 } 3785 3786 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3787 vport->cfg_nodev_tmo = val; 3788 vport->cfg_devloss_tmo = val; 3789 return 0; 3790 } 3791 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3792 "0400 lpfc_nodev_tmo attribute cannot be set to" 3793 " %d, allowed range is [%d, %d]\n", 3794 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3795 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3796 return -EINVAL; 3797 } 3798 3799 /** 3800 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3801 * @vport: lpfc vport structure pointer. 3802 * 3803 * Description: 3804 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3805 **/ 3806 static void 3807 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3808 { 3809 struct Scsi_Host *shost; 3810 struct lpfc_nodelist *ndlp; 3811 #if (IS_ENABLED(CONFIG_NVME_FC)) 3812 struct lpfc_nvme_rport *rport; 3813 struct nvme_fc_remote_port *remoteport = NULL; 3814 #endif 3815 3816 shost = lpfc_shost_from_vport(vport); 3817 spin_lock_irq(shost->host_lock); 3818 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3819 if (ndlp->rport) 3820 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3821 #if (IS_ENABLED(CONFIG_NVME_FC)) 3822 spin_lock(&ndlp->lock); 3823 rport = lpfc_ndlp_get_nrport(ndlp); 3824 if (rport) 3825 remoteport = rport->remoteport; 3826 spin_unlock(&ndlp->lock); 3827 if (rport && remoteport) 3828 nvme_fc_set_remoteport_devloss(remoteport, 3829 vport->cfg_devloss_tmo); 3830 #endif 3831 } 3832 spin_unlock_irq(shost->host_lock); 3833 } 3834 3835 /** 3836 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3837 * @vport: lpfc vport structure pointer. 3838 * @val: contains the tmo value. 3839 * 3840 * Description: 3841 * If the devloss tmo is already set or the vport dev loss tmo has changed 3842 * then a kernel error message is printed and zero is returned. 3843 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3844 * Otherwise nodev tmo is set to the default value. 3845 * 3846 * Returns: 3847 * zero if already set or if val is in range 3848 * -EINVAL val out of range 3849 **/ 3850 static int 3851 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3852 { 3853 if (vport->dev_loss_tmo_changed || 3854 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3855 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3856 "0401 Ignoring change to lpfc_nodev_tmo " 3857 "because lpfc_devloss_tmo is set.\n"); 3858 return 0; 3859 } 3860 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3861 vport->cfg_nodev_tmo = val; 3862 vport->cfg_devloss_tmo = val; 3863 /* 3864 * For compat: set the fc_host dev loss so new rports 3865 * will get the value. 3866 */ 3867 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3868 lpfc_update_rport_devloss_tmo(vport); 3869 return 0; 3870 } 3871 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3872 "0403 lpfc_nodev_tmo attribute cannot be set to " 3873 "%d, allowed range is [%d, %d]\n", 3874 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3875 return -EINVAL; 3876 } 3877 3878 lpfc_vport_param_store(nodev_tmo) 3879 3880 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3881 3882 /* 3883 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3884 # disappear until the timer expires. Value range is [0,255]. Default 3885 # value is 30. 3886 */ 3887 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3888 MODULE_PARM_DESC(lpfc_devloss_tmo, 3889 "Seconds driver will hold I/O waiting " 3890 "for a device to come back"); 3891 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3892 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3893 lpfc_vport_param_show(devloss_tmo) 3894 3895 /** 3896 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3897 * @vport: lpfc vport structure pointer. 3898 * @val: contains the tmo value. 3899 * 3900 * Description: 3901 * If val is in a valid range then set the vport nodev tmo, 3902 * devloss tmo, also set the vport dev loss tmo changed flag. 3903 * Else a kernel error message is printed. 3904 * 3905 * Returns: 3906 * zero if val is in range 3907 * -EINVAL val out of range 3908 **/ 3909 static int 3910 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3911 { 3912 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3913 vport->cfg_nodev_tmo = val; 3914 vport->cfg_devloss_tmo = val; 3915 vport->dev_loss_tmo_changed = 1; 3916 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3917 lpfc_update_rport_devloss_tmo(vport); 3918 return 0; 3919 } 3920 3921 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3922 "0404 lpfc_devloss_tmo attribute cannot be set to " 3923 "%d, allowed range is [%d, %d]\n", 3924 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3925 return -EINVAL; 3926 } 3927 3928 lpfc_vport_param_store(devloss_tmo) 3929 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3930 3931 /* 3932 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3933 * lpfc_suppress_rsp = 0 Disable 3934 * lpfc_suppress_rsp = 1 Enable (default) 3935 * 3936 */ 3937 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3938 "Enable suppress rsp feature is firmware supports it"); 3939 3940 /* 3941 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3942 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3943 * lpfc_nvmet_mrq = 1 use a single RQ pair 3944 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3945 * 3946 */ 3947 LPFC_ATTR_R(nvmet_mrq, 3948 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3949 "Specify number of RQ pairs for processing NVMET cmds"); 3950 3951 /* 3952 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3953 * to each NVMET RQ. Range 64 to 2048, default is 512. 3954 */ 3955 LPFC_ATTR_R(nvmet_mrq_post, 3956 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3957 LPFC_NVMET_RQE_DEF_COUNT, 3958 "Specify number of RQ buffers to initially post"); 3959 3960 /* 3961 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3962 * Supported Values: 1 - register just FCP 3963 * 3 - register both FCP and NVME 3964 * Supported values are [1,3]. Default value is 3 3965 */ 3966 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3967 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3968 "Enable FC4 Protocol support - FCP / NVME"); 3969 3970 /* 3971 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3972 # deluged with LOTS of information. 3973 # You can set a bit mask to record specific types of verbose messages: 3974 # See lpfc_logmsh.h for definitions. 3975 */ 3976 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3977 "Verbose logging bit-mask"); 3978 3979 /* 3980 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3981 # objects that have been registered with the nameserver after login. 3982 */ 3983 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3984 "Deregister nameserver objects before LOGO"); 3985 3986 /* 3987 # lun_queue_depth: This parameter is used to limit the number of outstanding 3988 # commands per FCP LUN. 3989 */ 3990 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3991 "Max number of FCP commands we can queue to a specific LUN"); 3992 3993 /* 3994 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3995 # commands per target port. Value range is [10,65535]. Default value is 65535. 3996 */ 3997 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3998 module_param(lpfc_tgt_queue_depth, uint, 0444); 3999 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 4000 lpfc_vport_param_show(tgt_queue_depth); 4001 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 4002 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 4003 4004 /** 4005 * lpfc_tgt_queue_depth_set: Sets an attribute value. 4006 * @vport: lpfc vport structure pointer. 4007 * @val: integer attribute value. 4008 * 4009 * Description: Sets the parameter to the new value. 4010 * 4011 * Returns: 4012 * zero on success 4013 * -EINVAL if val is invalid 4014 */ 4015 static int 4016 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 4017 { 4018 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4019 struct lpfc_nodelist *ndlp; 4020 4021 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 4022 return -EINVAL; 4023 4024 if (val == vport->cfg_tgt_queue_depth) 4025 return 0; 4026 4027 spin_lock_irq(shost->host_lock); 4028 vport->cfg_tgt_queue_depth = val; 4029 4030 /* Next loop thru nodelist and change cmd_qdepth */ 4031 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 4032 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4033 4034 spin_unlock_irq(shost->host_lock); 4035 return 0; 4036 } 4037 4038 lpfc_vport_param_store(tgt_queue_depth); 4039 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 4040 4041 /* 4042 # hba_queue_depth: This parameter is used to limit the number of outstanding 4043 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 4044 # value is greater than the maximum number of exchanges supported by the HBA, 4045 # then maximum number of exchanges supported by the HBA is used to determine 4046 # the hba_queue_depth. 4047 */ 4048 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 4049 "Max number of FCP commands we can queue to a lpfc HBA"); 4050 4051 /* 4052 # peer_port_login: This parameter allows/prevents logins 4053 # between peer ports hosted on the same physical port. 4054 # When this parameter is set 0 peer ports of same physical port 4055 # are not allowed to login to each other. 4056 # When this parameter is set 1 peer ports of same physical port 4057 # are allowed to login to each other. 4058 # Default value of this parameter is 0. 4059 */ 4060 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 4061 "Allow peer ports on the same physical port to login to each " 4062 "other."); 4063 4064 /* 4065 # restrict_login: This parameter allows/prevents logins 4066 # between Virtual Ports and remote initiators. 4067 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 4068 # other initiators and will attempt to PLOGI all remote ports. 4069 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 4070 # remote ports and will not attempt to PLOGI to other initiators. 4071 # This parameter does not restrict to the physical port. 4072 # This parameter does not restrict logins to Fabric resident remote ports. 4073 # Default value of this parameter is 1. 4074 */ 4075 static int lpfc_restrict_login = 1; 4076 module_param(lpfc_restrict_login, int, S_IRUGO); 4077 MODULE_PARM_DESC(lpfc_restrict_login, 4078 "Restrict virtual ports login to remote initiators."); 4079 lpfc_vport_param_show(restrict_login); 4080 4081 /** 4082 * lpfc_restrict_login_init - Set the vport restrict login flag 4083 * @vport: lpfc vport structure pointer. 4084 * @val: contains the restrict login value. 4085 * 4086 * Description: 4087 * If val is not in a valid range then log a kernel error message and set 4088 * the vport restrict login to one. 4089 * If the port type is physical clear the restrict login flag and return. 4090 * Else set the restrict login flag to val. 4091 * 4092 * Returns: 4093 * zero if val is in range 4094 * -EINVAL val out of range 4095 **/ 4096 static int 4097 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 4098 { 4099 if (val < 0 || val > 1) { 4100 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4101 "0422 lpfc_restrict_login attribute cannot " 4102 "be set to %d, allowed range is [0, 1]\n", 4103 val); 4104 vport->cfg_restrict_login = 1; 4105 return -EINVAL; 4106 } 4107 if (vport->port_type == LPFC_PHYSICAL_PORT) { 4108 vport->cfg_restrict_login = 0; 4109 return 0; 4110 } 4111 vport->cfg_restrict_login = val; 4112 return 0; 4113 } 4114 4115 /** 4116 * lpfc_restrict_login_set - Set the vport restrict login flag 4117 * @vport: lpfc vport structure pointer. 4118 * @val: contains the restrict login value. 4119 * 4120 * Description: 4121 * If val is not in a valid range then log a kernel error message and set 4122 * the vport restrict login to one. 4123 * If the port type is physical and the val is not zero log a kernel 4124 * error message, clear the restrict login flag and return zero. 4125 * Else set the restrict login flag to val. 4126 * 4127 * Returns: 4128 * zero if val is in range 4129 * -EINVAL val out of range 4130 **/ 4131 static int 4132 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4133 { 4134 if (val < 0 || val > 1) { 4135 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4136 "0425 lpfc_restrict_login attribute cannot " 4137 "be set to %d, allowed range is [0, 1]\n", 4138 val); 4139 vport->cfg_restrict_login = 1; 4140 return -EINVAL; 4141 } 4142 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4143 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4144 "0468 lpfc_restrict_login must be 0 for " 4145 "Physical ports.\n"); 4146 vport->cfg_restrict_login = 0; 4147 return 0; 4148 } 4149 vport->cfg_restrict_login = val; 4150 return 0; 4151 } 4152 lpfc_vport_param_store(restrict_login); 4153 static DEVICE_ATTR_RW(lpfc_restrict_login); 4154 4155 /* 4156 # Some disk devices have a "select ID" or "select Target" capability. 4157 # From a protocol standpoint "select ID" usually means select the 4158 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4159 # annex" which contains a table that maps a "select ID" (a number 4160 # between 0 and 7F) to an ALPA. By default, for compatibility with 4161 # older drivers, the lpfc driver scans this table from low ALPA to high 4162 # ALPA. 4163 # 4164 # Turning on the scan-down variable (on = 1, off = 0) will 4165 # cause the lpfc driver to use an inverted table, effectively 4166 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4167 # 4168 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 4169 # and will not work across a fabric. Also this parameter will take 4170 # effect only in the case when ALPA map is not available.) 4171 */ 4172 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4173 "Start scanning for devices from highest ALPA to lowest"); 4174 4175 /* 4176 # lpfc_topology: link topology for init link 4177 # 0x0 = attempt loop mode then point-to-point 4178 # 0x01 = internal loopback mode 4179 # 0x02 = attempt point-to-point mode only 4180 # 0x04 = attempt loop mode only 4181 # 0x06 = attempt point-to-point mode then loop 4182 # Set point-to-point mode if you want to run as an N_Port. 4183 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4184 # Default value is 0. 4185 */ 4186 LPFC_ATTR(topology, 0, 0, 6, 4187 "Select Fibre Channel topology"); 4188 4189 /** 4190 * lpfc_topology_store - Set the adapters topology field 4191 * @dev: class device that is converted into a scsi_host. 4192 * @attr:device attribute, not used. 4193 * @buf: buffer for passing information. 4194 * @count: size of the data buffer. 4195 * 4196 * Description: 4197 * If val is in a valid range then set the adapter's topology field and 4198 * issue a lip; if the lip fails reset the topology to the old value. 4199 * 4200 * If the value is not in range log a kernel error message and return an error. 4201 * 4202 * Returns: 4203 * zero if val is in range and lip okay 4204 * non-zero return value from lpfc_issue_lip() 4205 * -EINVAL val out of range 4206 **/ 4207 static ssize_t 4208 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4209 const char *buf, size_t count) 4210 { 4211 struct Scsi_Host *shost = class_to_shost(dev); 4212 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4213 struct lpfc_hba *phba = vport->phba; 4214 int val = 0; 4215 int nolip = 0; 4216 const char *val_buf = buf; 4217 int err; 4218 uint32_t prev_val; 4219 u8 sli_family, if_type; 4220 4221 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4222 nolip = 1; 4223 val_buf = &buf[strlen("nolip ")]; 4224 } 4225 4226 if (!isdigit(val_buf[0])) 4227 return -EINVAL; 4228 if (sscanf(val_buf, "%i", &val) != 1) 4229 return -EINVAL; 4230 4231 if (val >= 0 && val <= 6) { 4232 prev_val = phba->cfg_topology; 4233 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4234 val == 4) { 4235 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4236 "3113 Loop mode not supported at speed %d\n", 4237 val); 4238 return -EINVAL; 4239 } 4240 /* 4241 * The 'topology' is not a configurable parameter if : 4242 * - persistent topology enabled 4243 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4244 */ 4245 sli_family = bf_get(lpfc_sli_intf_sli_family, 4246 &phba->sli4_hba.sli_intf); 4247 if_type = bf_get(lpfc_sli_intf_if_type, 4248 &phba->sli4_hba.sli_intf); 4249 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4250 (!phba->sli4_hba.pc_sli4_params.pls && 4251 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4252 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4253 val == 4) { 4254 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4255 "3114 Loop mode not supported\n"); 4256 return -EINVAL; 4257 } 4258 phba->cfg_topology = val; 4259 if (nolip) 4260 return strlen(buf); 4261 4262 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4263 "3054 lpfc_topology changed from %d to %d\n", 4264 prev_val, val); 4265 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4266 phba->fc_topology_changed = 1; 4267 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4268 if (err) { 4269 phba->cfg_topology = prev_val; 4270 return -EINVAL; 4271 } else 4272 return strlen(buf); 4273 } 4274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4275 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4276 "allowed range is [0, 6]\n", 4277 phba->brd_no, val); 4278 return -EINVAL; 4279 } 4280 4281 lpfc_param_show(topology) 4282 static DEVICE_ATTR_RW(lpfc_topology); 4283 4284 /** 4285 * lpfc_static_vport_show: Read callback function for 4286 * lpfc_static_vport sysfs file. 4287 * @dev: Pointer to class device object. 4288 * @attr: device attribute structure. 4289 * @buf: Data buffer. 4290 * 4291 * This function is the read call back function for 4292 * lpfc_static_vport sysfs file. The lpfc_static_vport 4293 * sysfs file report the mageability of the vport. 4294 **/ 4295 static ssize_t 4296 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4297 char *buf) 4298 { 4299 struct Scsi_Host *shost = class_to_shost(dev); 4300 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4301 if (vport->vport_flag & STATIC_VPORT) 4302 sprintf(buf, "1\n"); 4303 else 4304 sprintf(buf, "0\n"); 4305 4306 return strlen(buf); 4307 } 4308 4309 /* 4310 * Sysfs attribute to control the statistical data collection. 4311 */ 4312 static DEVICE_ATTR_RO(lpfc_static_vport); 4313 4314 /** 4315 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4316 * @dev: Pointer to class device. 4317 * @attr: Unused. 4318 * @buf: Data buffer. 4319 * @count: Size of the data buffer. 4320 * 4321 * This function get called when a user write to the lpfc_stat_data_ctrl 4322 * sysfs file. This function parse the command written to the sysfs file 4323 * and take appropriate action. These commands are used for controlling 4324 * driver statistical data collection. 4325 * Following are the command this function handles. 4326 * 4327 * setbucket <bucket_type> <base> <step> 4328 * = Set the latency buckets. 4329 * destroybucket = destroy all the buckets. 4330 * start = start data collection 4331 * stop = stop data collection 4332 * reset = reset the collected data 4333 **/ 4334 static ssize_t 4335 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4336 const char *buf, size_t count) 4337 { 4338 struct Scsi_Host *shost = class_to_shost(dev); 4339 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4340 struct lpfc_hba *phba = vport->phba; 4341 #define LPFC_MAX_DATA_CTRL_LEN 1024 4342 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4343 unsigned long i; 4344 char *str_ptr, *token; 4345 struct lpfc_vport **vports; 4346 struct Scsi_Host *v_shost; 4347 char *bucket_type_str, *base_str, *step_str; 4348 unsigned long base, step, bucket_type; 4349 4350 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4351 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4352 return -EINVAL; 4353 4354 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4355 str_ptr = &bucket_data[0]; 4356 /* Ignore this token - this is command token */ 4357 token = strsep(&str_ptr, "\t "); 4358 if (!token) 4359 return -EINVAL; 4360 4361 bucket_type_str = strsep(&str_ptr, "\t "); 4362 if (!bucket_type_str) 4363 return -EINVAL; 4364 4365 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4366 bucket_type = LPFC_LINEAR_BUCKET; 4367 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4368 bucket_type = LPFC_POWER2_BUCKET; 4369 else 4370 return -EINVAL; 4371 4372 base_str = strsep(&str_ptr, "\t "); 4373 if (!base_str) 4374 return -EINVAL; 4375 base = simple_strtoul(base_str, NULL, 0); 4376 4377 step_str = strsep(&str_ptr, "\t "); 4378 if (!step_str) 4379 return -EINVAL; 4380 step = simple_strtoul(step_str, NULL, 0); 4381 if (!step) 4382 return -EINVAL; 4383 4384 /* Block the data collection for every vport */ 4385 vports = lpfc_create_vport_work_array(phba); 4386 if (vports == NULL) 4387 return -ENOMEM; 4388 4389 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4390 v_shost = lpfc_shost_from_vport(vports[i]); 4391 spin_lock_irq(v_shost->host_lock); 4392 /* Block and reset data collection */ 4393 vports[i]->stat_data_blocked = 1; 4394 if (vports[i]->stat_data_enabled) 4395 lpfc_vport_reset_stat_data(vports[i]); 4396 spin_unlock_irq(v_shost->host_lock); 4397 } 4398 4399 /* Set the bucket attributes */ 4400 phba->bucket_type = bucket_type; 4401 phba->bucket_base = base; 4402 phba->bucket_step = step; 4403 4404 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4405 v_shost = lpfc_shost_from_vport(vports[i]); 4406 4407 /* Unblock data collection */ 4408 spin_lock_irq(v_shost->host_lock); 4409 vports[i]->stat_data_blocked = 0; 4410 spin_unlock_irq(v_shost->host_lock); 4411 } 4412 lpfc_destroy_vport_work_array(phba, vports); 4413 return strlen(buf); 4414 } 4415 4416 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4417 vports = lpfc_create_vport_work_array(phba); 4418 if (vports == NULL) 4419 return -ENOMEM; 4420 4421 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4422 v_shost = lpfc_shost_from_vport(vports[i]); 4423 spin_lock_irq(shost->host_lock); 4424 vports[i]->stat_data_blocked = 1; 4425 lpfc_free_bucket(vport); 4426 vport->stat_data_enabled = 0; 4427 vports[i]->stat_data_blocked = 0; 4428 spin_unlock_irq(shost->host_lock); 4429 } 4430 lpfc_destroy_vport_work_array(phba, vports); 4431 phba->bucket_type = LPFC_NO_BUCKET; 4432 phba->bucket_base = 0; 4433 phba->bucket_step = 0; 4434 return strlen(buf); 4435 } 4436 4437 if (!strncmp(buf, "start", strlen("start"))) { 4438 /* If no buckets configured return error */ 4439 if (phba->bucket_type == LPFC_NO_BUCKET) 4440 return -EINVAL; 4441 spin_lock_irq(shost->host_lock); 4442 if (vport->stat_data_enabled) { 4443 spin_unlock_irq(shost->host_lock); 4444 return strlen(buf); 4445 } 4446 lpfc_alloc_bucket(vport); 4447 vport->stat_data_enabled = 1; 4448 spin_unlock_irq(shost->host_lock); 4449 return strlen(buf); 4450 } 4451 4452 if (!strncmp(buf, "stop", strlen("stop"))) { 4453 spin_lock_irq(shost->host_lock); 4454 if (vport->stat_data_enabled == 0) { 4455 spin_unlock_irq(shost->host_lock); 4456 return strlen(buf); 4457 } 4458 lpfc_free_bucket(vport); 4459 vport->stat_data_enabled = 0; 4460 spin_unlock_irq(shost->host_lock); 4461 return strlen(buf); 4462 } 4463 4464 if (!strncmp(buf, "reset", strlen("reset"))) { 4465 if ((phba->bucket_type == LPFC_NO_BUCKET) 4466 || !vport->stat_data_enabled) 4467 return strlen(buf); 4468 spin_lock_irq(shost->host_lock); 4469 vport->stat_data_blocked = 1; 4470 lpfc_vport_reset_stat_data(vport); 4471 vport->stat_data_blocked = 0; 4472 spin_unlock_irq(shost->host_lock); 4473 return strlen(buf); 4474 } 4475 return -EINVAL; 4476 } 4477 4478 4479 /** 4480 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4481 * @dev: Pointer to class device. 4482 * @attr: Unused. 4483 * @buf: Data buffer. 4484 * 4485 * This function is the read call back function for 4486 * lpfc_stat_data_ctrl sysfs file. This function report the 4487 * current statistical data collection state. 4488 **/ 4489 static ssize_t 4490 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4491 char *buf) 4492 { 4493 struct Scsi_Host *shost = class_to_shost(dev); 4494 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4495 struct lpfc_hba *phba = vport->phba; 4496 int index = 0; 4497 int i; 4498 char *bucket_type; 4499 unsigned long bucket_value; 4500 4501 switch (phba->bucket_type) { 4502 case LPFC_LINEAR_BUCKET: 4503 bucket_type = "linear"; 4504 break; 4505 case LPFC_POWER2_BUCKET: 4506 bucket_type = "power2"; 4507 break; 4508 default: 4509 bucket_type = "No Bucket"; 4510 break; 4511 } 4512 4513 sprintf(&buf[index], "Statistical Data enabled :%d, " 4514 "blocked :%d, Bucket type :%s, Bucket base :%d," 4515 " Bucket step :%d\nLatency Ranges :", 4516 vport->stat_data_enabled, vport->stat_data_blocked, 4517 bucket_type, phba->bucket_base, phba->bucket_step); 4518 index = strlen(buf); 4519 if (phba->bucket_type != LPFC_NO_BUCKET) { 4520 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4521 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4522 bucket_value = phba->bucket_base + 4523 phba->bucket_step * i; 4524 else 4525 bucket_value = phba->bucket_base + 4526 (1 << i) * phba->bucket_step; 4527 4528 if (index + 10 > PAGE_SIZE) 4529 break; 4530 sprintf(&buf[index], "%08ld ", bucket_value); 4531 index = strlen(buf); 4532 } 4533 } 4534 sprintf(&buf[index], "\n"); 4535 return strlen(buf); 4536 } 4537 4538 /* 4539 * Sysfs attribute to control the statistical data collection. 4540 */ 4541 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4542 4543 /* 4544 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4545 */ 4546 4547 /* 4548 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4549 * for each target. 4550 */ 4551 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4552 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4553 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4554 4555 4556 /** 4557 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4558 * @filp: sysfs file 4559 * @kobj: Pointer to the kernel object 4560 * @bin_attr: Attribute object 4561 * @buf: Buffer pointer 4562 * @off: File offset 4563 * @count: Buffer size 4564 * 4565 * This function is the read call back function for lpfc_drvr_stat_data 4566 * sysfs file. This function export the statistical data to user 4567 * applications. 4568 **/ 4569 static ssize_t 4570 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4571 struct bin_attribute *bin_attr, 4572 char *buf, loff_t off, size_t count) 4573 { 4574 struct device *dev = container_of(kobj, struct device, 4575 kobj); 4576 struct Scsi_Host *shost = class_to_shost(dev); 4577 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4578 struct lpfc_hba *phba = vport->phba; 4579 int i = 0, index = 0; 4580 unsigned long nport_index; 4581 struct lpfc_nodelist *ndlp = NULL; 4582 nport_index = (unsigned long)off / 4583 MAX_STAT_DATA_SIZE_PER_TARGET; 4584 4585 if (!vport->stat_data_enabled || vport->stat_data_blocked 4586 || (phba->bucket_type == LPFC_NO_BUCKET)) 4587 return 0; 4588 4589 spin_lock_irq(shost->host_lock); 4590 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4591 if (!ndlp->lat_data) 4592 continue; 4593 4594 if (nport_index > 0) { 4595 nport_index--; 4596 continue; 4597 } 4598 4599 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4600 > count) 4601 break; 4602 4603 if (!ndlp->lat_data) 4604 continue; 4605 4606 /* Print the WWN */ 4607 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4608 ndlp->nlp_portname.u.wwn[0], 4609 ndlp->nlp_portname.u.wwn[1], 4610 ndlp->nlp_portname.u.wwn[2], 4611 ndlp->nlp_portname.u.wwn[3], 4612 ndlp->nlp_portname.u.wwn[4], 4613 ndlp->nlp_portname.u.wwn[5], 4614 ndlp->nlp_portname.u.wwn[6], 4615 ndlp->nlp_portname.u.wwn[7]); 4616 4617 index = strlen(buf); 4618 4619 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4620 sprintf(&buf[index], "%010u,", 4621 ndlp->lat_data[i].cmd_count); 4622 index = strlen(buf); 4623 } 4624 sprintf(&buf[index], "\n"); 4625 index = strlen(buf); 4626 } 4627 spin_unlock_irq(shost->host_lock); 4628 return index; 4629 } 4630 4631 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4632 .attr = { 4633 .name = "lpfc_drvr_stat_data", 4634 .mode = S_IRUSR, 4635 }, 4636 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4637 .read = sysfs_drvr_stat_data_read, 4638 .write = NULL, 4639 }; 4640 4641 /* 4642 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4643 # connection. 4644 # Value range is [0,16]. Default value is 0. 4645 */ 4646 /** 4647 * lpfc_link_speed_store - Set the adapters link speed 4648 * @dev: Pointer to class device. 4649 * @attr: Unused. 4650 * @buf: Data buffer. 4651 * @count: Size of the data buffer. 4652 * 4653 * Description: 4654 * If val is in a valid range then set the adapter's link speed field and 4655 * issue a lip; if the lip fails reset the link speed to the old value. 4656 * 4657 * Notes: 4658 * If the value is not in range log a kernel error message and return an error. 4659 * 4660 * Returns: 4661 * zero if val is in range and lip okay. 4662 * non-zero return value from lpfc_issue_lip() 4663 * -EINVAL val out of range 4664 **/ 4665 static ssize_t 4666 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4667 const char *buf, size_t count) 4668 { 4669 struct Scsi_Host *shost = class_to_shost(dev); 4670 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4671 struct lpfc_hba *phba = vport->phba; 4672 int val = LPFC_USER_LINK_SPEED_AUTO; 4673 int nolip = 0; 4674 const char *val_buf = buf; 4675 int err; 4676 uint32_t prev_val, if_type; 4677 4678 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4679 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4680 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4681 return -EPERM; 4682 4683 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4684 nolip = 1; 4685 val_buf = &buf[strlen("nolip ")]; 4686 } 4687 4688 if (!isdigit(val_buf[0])) 4689 return -EINVAL; 4690 if (sscanf(val_buf, "%i", &val) != 1) 4691 return -EINVAL; 4692 4693 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4694 "3055 lpfc_link_speed changed from %d to %d %s\n", 4695 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4696 4697 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4698 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4699 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4700 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4701 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4702 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4703 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4704 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4706 "2879 lpfc_link_speed attribute cannot be set " 4707 "to %d. Speed is not supported by this port.\n", 4708 val); 4709 return -EINVAL; 4710 } 4711 if (val >= LPFC_USER_LINK_SPEED_16G && 4712 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4714 "3112 lpfc_link_speed attribute cannot be set " 4715 "to %d. Speed is not supported in loop mode.\n", 4716 val); 4717 return -EINVAL; 4718 } 4719 4720 switch (val) { 4721 case LPFC_USER_LINK_SPEED_AUTO: 4722 case LPFC_USER_LINK_SPEED_1G: 4723 case LPFC_USER_LINK_SPEED_2G: 4724 case LPFC_USER_LINK_SPEED_4G: 4725 case LPFC_USER_LINK_SPEED_8G: 4726 case LPFC_USER_LINK_SPEED_16G: 4727 case LPFC_USER_LINK_SPEED_32G: 4728 case LPFC_USER_LINK_SPEED_64G: 4729 prev_val = phba->cfg_link_speed; 4730 phba->cfg_link_speed = val; 4731 if (nolip) 4732 return strlen(buf); 4733 4734 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4735 if (err) { 4736 phba->cfg_link_speed = prev_val; 4737 return -EINVAL; 4738 } 4739 return strlen(buf); 4740 default: 4741 break; 4742 } 4743 4744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4745 "0469 lpfc_link_speed attribute cannot be set to %d, " 4746 "allowed values are [%s]\n", 4747 val, LPFC_LINK_SPEED_STRING); 4748 return -EINVAL; 4749 4750 } 4751 4752 static int lpfc_link_speed = 0; 4753 module_param(lpfc_link_speed, int, S_IRUGO); 4754 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4755 lpfc_param_show(link_speed) 4756 4757 /** 4758 * lpfc_link_speed_init - Set the adapters link speed 4759 * @phba: lpfc_hba pointer. 4760 * @val: link speed value. 4761 * 4762 * Description: 4763 * If val is in a valid range then set the adapter's link speed field. 4764 * 4765 * Notes: 4766 * If the value is not in range log a kernel error message, clear the link 4767 * speed and return an error. 4768 * 4769 * Returns: 4770 * zero if val saved. 4771 * -EINVAL val out of range 4772 **/ 4773 static int 4774 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4775 { 4776 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4778 "3111 lpfc_link_speed of %d cannot " 4779 "support loop mode, setting topology to default.\n", 4780 val); 4781 phba->cfg_topology = 0; 4782 } 4783 4784 switch (val) { 4785 case LPFC_USER_LINK_SPEED_AUTO: 4786 case LPFC_USER_LINK_SPEED_1G: 4787 case LPFC_USER_LINK_SPEED_2G: 4788 case LPFC_USER_LINK_SPEED_4G: 4789 case LPFC_USER_LINK_SPEED_8G: 4790 case LPFC_USER_LINK_SPEED_16G: 4791 case LPFC_USER_LINK_SPEED_32G: 4792 case LPFC_USER_LINK_SPEED_64G: 4793 phba->cfg_link_speed = val; 4794 return 0; 4795 default: 4796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4797 "0405 lpfc_link_speed attribute cannot " 4798 "be set to %d, allowed values are " 4799 "["LPFC_LINK_SPEED_STRING"]\n", val); 4800 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4801 return -EINVAL; 4802 } 4803 } 4804 4805 static DEVICE_ATTR_RW(lpfc_link_speed); 4806 4807 /* 4808 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4809 # 0 = aer disabled or not supported 4810 # 1 = aer supported and enabled (default) 4811 # Value range is [0,1]. Default value is 1. 4812 */ 4813 LPFC_ATTR(aer_support, 1, 0, 1, 4814 "Enable PCIe device AER support"); 4815 lpfc_param_show(aer_support) 4816 4817 /** 4818 * lpfc_aer_support_store - Set the adapter for aer support 4819 * 4820 * @dev: class device that is converted into a Scsi_host. 4821 * @attr: device attribute, not used. 4822 * @buf: containing enable or disable aer flag. 4823 * @count: unused variable. 4824 * 4825 * Description: 4826 * If the val is 1 and currently the device's AER capability was not 4827 * enabled, invoke the kernel's enable AER helper routine, trying to 4828 * enable the device's AER capability. If the helper routine enabling 4829 * AER returns success, update the device's cfg_aer_support flag to 4830 * indicate AER is supported by the device; otherwise, if the device 4831 * AER capability is already enabled to support AER, then do nothing. 4832 * 4833 * If the val is 0 and currently the device's AER support was enabled, 4834 * invoke the kernel's disable AER helper routine. After that, update 4835 * the device's cfg_aer_support flag to indicate AER is not supported 4836 * by the device; otherwise, if the device AER capability is already 4837 * disabled from supporting AER, then do nothing. 4838 * 4839 * Returns: 4840 * length of the buf on success if val is in range the intended mode 4841 * is supported. 4842 * -EINVAL if val out of range or intended mode is not supported. 4843 **/ 4844 static ssize_t 4845 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4846 const char *buf, size_t count) 4847 { 4848 struct Scsi_Host *shost = class_to_shost(dev); 4849 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4850 struct lpfc_hba *phba = vport->phba; 4851 int val = 0, rc = -EINVAL; 4852 4853 if (!isdigit(buf[0])) 4854 return -EINVAL; 4855 if (sscanf(buf, "%i", &val) != 1) 4856 return -EINVAL; 4857 4858 switch (val) { 4859 case 0: 4860 if (phba->hba_flag & HBA_AER_ENABLED) { 4861 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4862 if (!rc) { 4863 spin_lock_irq(&phba->hbalock); 4864 phba->hba_flag &= ~HBA_AER_ENABLED; 4865 spin_unlock_irq(&phba->hbalock); 4866 phba->cfg_aer_support = 0; 4867 rc = strlen(buf); 4868 } else 4869 rc = -EPERM; 4870 } else { 4871 phba->cfg_aer_support = 0; 4872 rc = strlen(buf); 4873 } 4874 break; 4875 case 1: 4876 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4877 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4878 if (!rc) { 4879 spin_lock_irq(&phba->hbalock); 4880 phba->hba_flag |= HBA_AER_ENABLED; 4881 spin_unlock_irq(&phba->hbalock); 4882 phba->cfg_aer_support = 1; 4883 rc = strlen(buf); 4884 } else 4885 rc = -EPERM; 4886 } else { 4887 phba->cfg_aer_support = 1; 4888 rc = strlen(buf); 4889 } 4890 break; 4891 default: 4892 rc = -EINVAL; 4893 break; 4894 } 4895 return rc; 4896 } 4897 4898 static DEVICE_ATTR_RW(lpfc_aer_support); 4899 4900 /** 4901 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4902 * @dev: class device that is converted into a Scsi_host. 4903 * @attr: device attribute, not used. 4904 * @buf: containing flag 1 for aer cleanup state. 4905 * @count: unused variable. 4906 * 4907 * Description: 4908 * If the @buf contains 1 and the device currently has the AER support 4909 * enabled, then invokes the kernel AER helper routine 4910 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4911 * error status register. 4912 * 4913 * Notes: 4914 * 4915 * Returns: 4916 * -EINVAL if the buf does not contain the 1 or the device is not currently 4917 * enabled with the AER support. 4918 **/ 4919 static ssize_t 4920 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4921 const char *buf, size_t count) 4922 { 4923 struct Scsi_Host *shost = class_to_shost(dev); 4924 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4925 struct lpfc_hba *phba = vport->phba; 4926 int val, rc = -1; 4927 4928 if (!isdigit(buf[0])) 4929 return -EINVAL; 4930 if (sscanf(buf, "%i", &val) != 1) 4931 return -EINVAL; 4932 if (val != 1) 4933 return -EINVAL; 4934 4935 if (phba->hba_flag & HBA_AER_ENABLED) 4936 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4937 4938 if (rc == 0) 4939 return strlen(buf); 4940 else 4941 return -EPERM; 4942 } 4943 4944 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4945 lpfc_aer_cleanup_state); 4946 4947 /** 4948 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4949 * 4950 * @dev: class device that is converted into a Scsi_host. 4951 * @attr: device attribute, not used. 4952 * @buf: containing the string the number of vfs to be enabled. 4953 * @count: unused variable. 4954 * 4955 * Description: 4956 * When this api is called either through user sysfs, the driver shall 4957 * try to enable or disable SR-IOV virtual functions according to the 4958 * following: 4959 * 4960 * If zero virtual function has been enabled to the physical function, 4961 * the driver shall invoke the pci enable virtual function api trying 4962 * to enable the virtual functions. If the nr_vfn provided is greater 4963 * than the maximum supported, the maximum virtual function number will 4964 * be used for invoking the api; otherwise, the nr_vfn provided shall 4965 * be used for invoking the api. If the api call returned success, the 4966 * actual number of virtual functions enabled will be set to the driver 4967 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4968 * cfg_sriov_nr_virtfn remains zero. 4969 * 4970 * If none-zero virtual functions have already been enabled to the 4971 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4972 * -EINVAL will be returned and the driver does nothing; 4973 * 4974 * If the nr_vfn provided is zero and none-zero virtual functions have 4975 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4976 * disabling virtual function api shall be invoded to disable all the 4977 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4978 * zero. Otherwise, if zero virtual function has been enabled, do 4979 * nothing. 4980 * 4981 * Returns: 4982 * length of the buf on success if val is in range the intended mode 4983 * is supported. 4984 * -EINVAL if val out of range or intended mode is not supported. 4985 **/ 4986 static ssize_t 4987 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4988 const char *buf, size_t count) 4989 { 4990 struct Scsi_Host *shost = class_to_shost(dev); 4991 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4992 struct lpfc_hba *phba = vport->phba; 4993 struct pci_dev *pdev = phba->pcidev; 4994 int val = 0, rc = -EINVAL; 4995 4996 /* Sanity check on user data */ 4997 if (!isdigit(buf[0])) 4998 return -EINVAL; 4999 if (sscanf(buf, "%i", &val) != 1) 5000 return -EINVAL; 5001 if (val < 0) 5002 return -EINVAL; 5003 5004 /* Request disabling virtual functions */ 5005 if (val == 0) { 5006 if (phba->cfg_sriov_nr_virtfn > 0) { 5007 pci_disable_sriov(pdev); 5008 phba->cfg_sriov_nr_virtfn = 0; 5009 } 5010 return strlen(buf); 5011 } 5012 5013 /* Request enabling virtual functions */ 5014 if (phba->cfg_sriov_nr_virtfn > 0) { 5015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5016 "3018 There are %d virtual functions " 5017 "enabled on physical function.\n", 5018 phba->cfg_sriov_nr_virtfn); 5019 return -EEXIST; 5020 } 5021 5022 if (val <= LPFC_MAX_VFN_PER_PFN) 5023 phba->cfg_sriov_nr_virtfn = val; 5024 else { 5025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5026 "3019 Enabling %d virtual functions is not " 5027 "allowed.\n", val); 5028 return -EINVAL; 5029 } 5030 5031 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 5032 if (rc) { 5033 phba->cfg_sriov_nr_virtfn = 0; 5034 rc = -EPERM; 5035 } else 5036 rc = strlen(buf); 5037 5038 return rc; 5039 } 5040 5041 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 5042 "Enable PCIe device SR-IOV virtual fn"); 5043 5044 lpfc_param_show(sriov_nr_virtfn) 5045 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 5046 5047 /** 5048 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 5049 * 5050 * @dev: class device that is converted into a Scsi_host. 5051 * @attr: device attribute, not used. 5052 * @buf: containing the string the number of vfs to be enabled. 5053 * @count: unused variable. 5054 * 5055 * Description: 5056 * 5057 * Returns: 5058 * length of the buf on success if val is in range the intended mode 5059 * is supported. 5060 * -EINVAL if val out of range or intended mode is not supported. 5061 **/ 5062 static ssize_t 5063 lpfc_request_firmware_upgrade_store(struct device *dev, 5064 struct device_attribute *attr, 5065 const char *buf, size_t count) 5066 { 5067 struct Scsi_Host *shost = class_to_shost(dev); 5068 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5069 struct lpfc_hba *phba = vport->phba; 5070 int val = 0, rc; 5071 5072 /* Sanity check on user data */ 5073 if (!isdigit(buf[0])) 5074 return -EINVAL; 5075 if (sscanf(buf, "%i", &val) != 1) 5076 return -EINVAL; 5077 if (val != 1) 5078 return -EINVAL; 5079 5080 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 5081 if (rc) 5082 rc = -EPERM; 5083 else 5084 rc = strlen(buf); 5085 return rc; 5086 } 5087 5088 static int lpfc_req_fw_upgrade; 5089 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 5090 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 5091 lpfc_param_show(request_firmware_upgrade) 5092 5093 /** 5094 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 5095 * @phba: lpfc_hba pointer. 5096 * @val: 0 or 1. 5097 * 5098 * Description: 5099 * Set the initial Linux generic firmware upgrade enable or disable flag. 5100 * 5101 * Returns: 5102 * zero if val saved. 5103 * -EINVAL val out of range 5104 **/ 5105 static int 5106 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 5107 { 5108 if (val >= 0 && val <= 1) { 5109 phba->cfg_request_firmware_upgrade = val; 5110 return 0; 5111 } 5112 return -EINVAL; 5113 } 5114 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 5115 lpfc_request_firmware_upgrade_show, 5116 lpfc_request_firmware_upgrade_store); 5117 5118 /** 5119 * lpfc_force_rscn_store 5120 * 5121 * @dev: class device that is converted into a Scsi_host. 5122 * @attr: device attribute, not used. 5123 * @buf: unused string 5124 * @count: unused variable. 5125 * 5126 * Description: 5127 * Force the switch to send a RSCN to all other NPorts in our zone 5128 * If we are direct connect pt2pt, build the RSCN command ourself 5129 * and send to the other NPort. Not supported for private loop. 5130 * 5131 * Returns: 5132 * 0 - on success 5133 * -EIO - if command is not sent 5134 **/ 5135 static ssize_t 5136 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 5137 const char *buf, size_t count) 5138 { 5139 struct Scsi_Host *shost = class_to_shost(dev); 5140 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5141 int i; 5142 5143 i = lpfc_issue_els_rscn(vport, 0); 5144 if (i) 5145 return -EIO; 5146 return strlen(buf); 5147 } 5148 5149 /* 5150 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 5151 * connected to the HBA. 5152 * 5153 * Value range is any ascii value 5154 */ 5155 static int lpfc_force_rscn; 5156 module_param(lpfc_force_rscn, int, 0644); 5157 MODULE_PARM_DESC(lpfc_force_rscn, 5158 "Force an RSCN to be sent to all remote NPorts"); 5159 lpfc_param_show(force_rscn) 5160 5161 /** 5162 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 5163 * @phba: lpfc_hba pointer. 5164 * @val: unused value. 5165 * 5166 * Returns: 5167 * zero if val saved. 5168 **/ 5169 static int 5170 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 5171 { 5172 return 0; 5173 } 5174 static DEVICE_ATTR_RW(lpfc_force_rscn); 5175 5176 /** 5177 * lpfc_fcp_imax_store 5178 * 5179 * @dev: class device that is converted into a Scsi_host. 5180 * @attr: device attribute, not used. 5181 * @buf: string with the number of fast-path FCP interrupts per second. 5182 * @count: unused variable. 5183 * 5184 * Description: 5185 * If val is in a valid range [636,651042], then set the adapter's 5186 * maximum number of fast-path FCP interrupts per second. 5187 * 5188 * Returns: 5189 * length of the buf on success if val is in range the intended mode 5190 * is supported. 5191 * -EINVAL if val out of range or intended mode is not supported. 5192 **/ 5193 static ssize_t 5194 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5195 const char *buf, size_t count) 5196 { 5197 struct Scsi_Host *shost = class_to_shost(dev); 5198 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5199 struct lpfc_hba *phba = vport->phba; 5200 struct lpfc_eq_intr_info *eqi; 5201 uint32_t usdelay; 5202 int val = 0, i; 5203 5204 /* fcp_imax is only valid for SLI4 */ 5205 if (phba->sli_rev != LPFC_SLI_REV4) 5206 return -EINVAL; 5207 5208 /* Sanity check on user data */ 5209 if (!isdigit(buf[0])) 5210 return -EINVAL; 5211 if (sscanf(buf, "%i", &val) != 1) 5212 return -EINVAL; 5213 5214 /* 5215 * Value range for the HBA is [5000,5000000] 5216 * The value for each EQ depends on how many EQs are configured. 5217 * Allow value == 0 5218 */ 5219 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5220 return -EINVAL; 5221 5222 phba->cfg_auto_imax = (val) ? 0 : 1; 5223 if (phba->cfg_fcp_imax && !val) { 5224 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5225 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5226 5227 for_each_present_cpu(i) { 5228 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5229 eqi->icnt = 0; 5230 } 5231 } 5232 5233 phba->cfg_fcp_imax = (uint32_t)val; 5234 5235 if (phba->cfg_fcp_imax) 5236 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5237 else 5238 usdelay = 0; 5239 5240 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5241 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5242 usdelay); 5243 5244 return strlen(buf); 5245 } 5246 5247 /* 5248 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5249 # for the HBA. 5250 # 5251 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5252 */ 5253 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5254 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5255 MODULE_PARM_DESC(lpfc_fcp_imax, 5256 "Set the maximum number of FCP interrupts per second per HBA"); 5257 lpfc_param_show(fcp_imax) 5258 5259 /** 5260 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5261 * @phba: lpfc_hba pointer. 5262 * @val: link speed value. 5263 * 5264 * Description: 5265 * If val is in a valid range [636,651042], then initialize the adapter's 5266 * maximum number of fast-path FCP interrupts per second. 5267 * 5268 * Returns: 5269 * zero if val saved. 5270 * -EINVAL val out of range 5271 **/ 5272 static int 5273 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5274 { 5275 if (phba->sli_rev != LPFC_SLI_REV4) { 5276 phba->cfg_fcp_imax = 0; 5277 return 0; 5278 } 5279 5280 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5281 (val == 0)) { 5282 phba->cfg_fcp_imax = val; 5283 return 0; 5284 } 5285 5286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5287 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5288 val); 5289 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5290 5291 return 0; 5292 } 5293 5294 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5295 5296 /** 5297 * lpfc_cq_max_proc_limit_store 5298 * 5299 * @dev: class device that is converted into a Scsi_host. 5300 * @attr: device attribute, not used. 5301 * @buf: string with the cq max processing limit of cqes 5302 * @count: unused variable. 5303 * 5304 * Description: 5305 * If val is in a valid range, then set value on each cq 5306 * 5307 * Returns: 5308 * The length of the buf: if successful 5309 * -ERANGE: if val is not in the valid range 5310 * -EINVAL: if bad value format or intended mode is not supported. 5311 **/ 5312 static ssize_t 5313 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5314 const char *buf, size_t count) 5315 { 5316 struct Scsi_Host *shost = class_to_shost(dev); 5317 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5318 struct lpfc_hba *phba = vport->phba; 5319 struct lpfc_queue *eq, *cq; 5320 unsigned long val; 5321 int i; 5322 5323 /* cq_max_proc_limit is only valid for SLI4 */ 5324 if (phba->sli_rev != LPFC_SLI_REV4) 5325 return -EINVAL; 5326 5327 /* Sanity check on user data */ 5328 if (!isdigit(buf[0])) 5329 return -EINVAL; 5330 if (kstrtoul(buf, 0, &val)) 5331 return -EINVAL; 5332 5333 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5334 return -ERANGE; 5335 5336 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5337 5338 /* set the values on the cq's */ 5339 for (i = 0; i < phba->cfg_irq_chann; i++) { 5340 /* Get the EQ corresponding to the IRQ vector */ 5341 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5342 if (!eq) 5343 continue; 5344 5345 list_for_each_entry(cq, &eq->child_list, list) 5346 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5347 cq->entry_count); 5348 } 5349 5350 return strlen(buf); 5351 } 5352 5353 /* 5354 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5355 * itteration of CQ processing. 5356 */ 5357 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5358 module_param(lpfc_cq_max_proc_limit, int, 0644); 5359 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5360 "Set the maximum number CQEs processed in an iteration of " 5361 "CQ processing"); 5362 lpfc_param_show(cq_max_proc_limit) 5363 5364 /* 5365 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5366 * single handler call which should request a polled completion rather 5367 * than re-enabling interrupts. 5368 */ 5369 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5370 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5371 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5372 "CQE Processing Threshold to enable Polling"); 5373 5374 /** 5375 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5376 * @phba: lpfc_hba pointer. 5377 * @val: entry limit 5378 * 5379 * Description: 5380 * If val is in a valid range, then initialize the adapter's maximum 5381 * value. 5382 * 5383 * Returns: 5384 * Always returns 0 for success, even if value not always set to 5385 * requested value. If value out of range or not supported, will fall 5386 * back to default. 5387 **/ 5388 static int 5389 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5390 { 5391 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5392 5393 if (phba->sli_rev != LPFC_SLI_REV4) 5394 return 0; 5395 5396 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5397 phba->cfg_cq_max_proc_limit = val; 5398 return 0; 5399 } 5400 5401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5402 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 5403 "default\n", 5404 phba->cfg_cq_max_proc_limit); 5405 5406 return 0; 5407 } 5408 5409 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5410 5411 /** 5412 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5413 * @dev: class converted to a Scsi_host structure. 5414 * @attr: device attribute, not used. 5415 * @buf: on return contains text describing the state of the link. 5416 * 5417 * Returns: size of formatted string. 5418 **/ 5419 static ssize_t 5420 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5421 char *buf) 5422 { 5423 struct Scsi_Host *shost = class_to_shost(dev); 5424 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5425 struct lpfc_hba *phba = vport->phba; 5426 struct lpfc_vector_map_info *cpup; 5427 int len = 0; 5428 5429 if ((phba->sli_rev != LPFC_SLI_REV4) || 5430 (phba->intr_type != MSIX)) 5431 return len; 5432 5433 switch (phba->cfg_fcp_cpu_map) { 5434 case 0: 5435 len += scnprintf(buf + len, PAGE_SIZE-len, 5436 "fcp_cpu_map: No mapping (%d)\n", 5437 phba->cfg_fcp_cpu_map); 5438 return len; 5439 case 1: 5440 len += scnprintf(buf + len, PAGE_SIZE-len, 5441 "fcp_cpu_map: HBA centric mapping (%d): " 5442 "%d of %d CPUs online from %d possible CPUs\n", 5443 phba->cfg_fcp_cpu_map, num_online_cpus(), 5444 num_present_cpus(), 5445 phba->sli4_hba.num_possible_cpu); 5446 break; 5447 } 5448 5449 while (phba->sli4_hba.curr_disp_cpu < 5450 phba->sli4_hba.num_possible_cpu) { 5451 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5452 5453 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5454 len += scnprintf(buf + len, PAGE_SIZE - len, 5455 "CPU %02d not present\n", 5456 phba->sli4_hba.curr_disp_cpu); 5457 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5458 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5459 len += scnprintf( 5460 buf + len, PAGE_SIZE - len, 5461 "CPU %02d hdwq None " 5462 "physid %d coreid %d ht %d ua %d\n", 5463 phba->sli4_hba.curr_disp_cpu, 5464 cpup->phys_id, cpup->core_id, 5465 (cpup->flag & LPFC_CPU_MAP_HYPER), 5466 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5467 else 5468 len += scnprintf( 5469 buf + len, PAGE_SIZE - len, 5470 "CPU %02d EQ None hdwq %04d " 5471 "physid %d coreid %d ht %d ua %d\n", 5472 phba->sli4_hba.curr_disp_cpu, 5473 cpup->hdwq, cpup->phys_id, 5474 cpup->core_id, 5475 (cpup->flag & LPFC_CPU_MAP_HYPER), 5476 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5477 } else { 5478 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5479 len += scnprintf( 5480 buf + len, PAGE_SIZE - len, 5481 "CPU %02d hdwq None " 5482 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5483 phba->sli4_hba.curr_disp_cpu, 5484 cpup->phys_id, 5485 cpup->core_id, 5486 (cpup->flag & LPFC_CPU_MAP_HYPER), 5487 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5488 lpfc_get_irq(cpup->eq)); 5489 else 5490 len += scnprintf( 5491 buf + len, PAGE_SIZE - len, 5492 "CPU %02d EQ %04d hdwq %04d " 5493 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5494 phba->sli4_hba.curr_disp_cpu, 5495 cpup->eq, cpup->hdwq, cpup->phys_id, 5496 cpup->core_id, 5497 (cpup->flag & LPFC_CPU_MAP_HYPER), 5498 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5499 lpfc_get_irq(cpup->eq)); 5500 } 5501 5502 phba->sli4_hba.curr_disp_cpu++; 5503 5504 /* display max number of CPUs keeping some margin */ 5505 if (phba->sli4_hba.curr_disp_cpu < 5506 phba->sli4_hba.num_possible_cpu && 5507 (len >= (PAGE_SIZE - 64))) { 5508 len += scnprintf(buf + len, 5509 PAGE_SIZE - len, "more...\n"); 5510 break; 5511 } 5512 } 5513 5514 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5515 phba->sli4_hba.curr_disp_cpu = 0; 5516 5517 return len; 5518 } 5519 5520 /** 5521 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5522 * @dev: class device that is converted into a Scsi_host. 5523 * @attr: device attribute, not used. 5524 * @buf: one or more lpfc_polling_flags values. 5525 * @count: not used. 5526 * 5527 * Returns: 5528 * -EINVAL - Not implemented yet. 5529 **/ 5530 static ssize_t 5531 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5532 const char *buf, size_t count) 5533 { 5534 return -EINVAL; 5535 } 5536 5537 /* 5538 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5539 # for the HBA. 5540 # 5541 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5542 # 0 - Do not affinitze IRQ vectors 5543 # 1 - Affintize HBA vectors with respect to each HBA 5544 # (start with CPU0 for each HBA) 5545 # This also defines how Hardware Queues are mapped to specific CPUs. 5546 */ 5547 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5548 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5549 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5550 "Defines how to map CPUs to IRQ vectors per HBA"); 5551 5552 /** 5553 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5554 * @phba: lpfc_hba pointer. 5555 * @val: link speed value. 5556 * 5557 * Description: 5558 * If val is in a valid range [0-2], then affinitze the adapter's 5559 * MSIX vectors. 5560 * 5561 * Returns: 5562 * zero if val saved. 5563 * -EINVAL val out of range 5564 **/ 5565 static int 5566 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5567 { 5568 if (phba->sli_rev != LPFC_SLI_REV4) { 5569 phba->cfg_fcp_cpu_map = 0; 5570 return 0; 5571 } 5572 5573 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5574 phba->cfg_fcp_cpu_map = val; 5575 return 0; 5576 } 5577 5578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5579 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5580 "default\n", val); 5581 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5582 5583 return 0; 5584 } 5585 5586 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5587 5588 /* 5589 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5590 # Value range is [2,3]. Default value is 3. 5591 */ 5592 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5593 "Select Fibre Channel class of service for FCP sequences"); 5594 5595 /* 5596 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5597 # is [0,1]. Default value is 1. 5598 */ 5599 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5600 "Use ADISC on rediscovery to authenticate FCP devices"); 5601 5602 /* 5603 # lpfc_first_burst_size: First burst size to use on the NPorts 5604 # that support first burst. 5605 # Value range is [0,65536]. Default value is 0. 5606 */ 5607 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5608 "First burst size for Targets that support first burst"); 5609 5610 /* 5611 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5612 * When the driver is configured as an NVME target, this value is 5613 * communicated to the NVME initiator in the PRLI response. It is 5614 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5615 * parameters are set and the target is sending the PRLI RSP. 5616 * Parameter supported on physical port only - no NPIV support. 5617 * Value range is [0,65536]. Default value is 0. 5618 */ 5619 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5620 "NVME Target mode first burst size in 512B increments."); 5621 5622 /* 5623 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5624 * For the Initiator (I), enabling this parameter means that an NVMET 5625 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5626 * processed by the initiator for subsequent NVME FCP IO. 5627 * Currently, this feature is not supported on the NVME target 5628 * Value range is [0,1]. Default value is 0 (disabled). 5629 */ 5630 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5631 "Enable First Burst feature for NVME Initiator."); 5632 5633 /* 5634 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5635 # depth. Default value is 0. When the value of this parameter is zero the 5636 # SCSI command completion time is not used for controlling I/O queue depth. When 5637 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5638 # to limit the I/O completion time to the parameter value. 5639 # The value is set in milliseconds. 5640 */ 5641 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5642 "Use command completion time to control queue depth"); 5643 5644 lpfc_vport_param_show(max_scsicmpl_time); 5645 static int 5646 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5647 { 5648 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5649 struct lpfc_nodelist *ndlp, *next_ndlp; 5650 5651 if (val == vport->cfg_max_scsicmpl_time) 5652 return 0; 5653 if ((val < 0) || (val > 60000)) 5654 return -EINVAL; 5655 vport->cfg_max_scsicmpl_time = val; 5656 5657 spin_lock_irq(shost->host_lock); 5658 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5659 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5660 continue; 5661 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5662 } 5663 spin_unlock_irq(shost->host_lock); 5664 return 0; 5665 } 5666 lpfc_vport_param_store(max_scsicmpl_time); 5667 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5668 5669 /* 5670 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5671 # range is [0,1]. Default value is 0. 5672 */ 5673 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5674 5675 /* 5676 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5677 # range is [0,1]. Default value is 1. 5678 */ 5679 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5680 5681 /* 5682 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5683 * range is [0,1]. Default value is 0. 5684 * For [0], FCP commands are issued to Work Queues based on upper layer 5685 * hardware queue index. 5686 * For [1], FCP commands are issued to a Work Queue associated with the 5687 * current CPU. 5688 * 5689 * LPFC_FCP_SCHED_BY_HDWQ == 0 5690 * LPFC_FCP_SCHED_BY_CPU == 1 5691 * 5692 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5693 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5694 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5695 * through WQs will be used. 5696 */ 5697 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5698 LPFC_FCP_SCHED_BY_HDWQ, 5699 LPFC_FCP_SCHED_BY_CPU, 5700 "Determine scheduling algorithm for " 5701 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5702 5703 /* 5704 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5705 * range is [0,1]. Default value is 0. 5706 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5707 * For [1], GID_PT is used for NameServer queries after RSCN 5708 * 5709 */ 5710 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5711 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5712 "Determine algorithm NameServer queries after RSCN " 5713 "[0] - GID_FT, [1] - GID_PT"); 5714 5715 /* 5716 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5717 # range is [0,1]. Default value is 0. 5718 # For [0], bus reset issues target reset to ALL devices 5719 # For [1], bus reset issues target reset to non-FCP2 devices 5720 */ 5721 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5722 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5723 5724 5725 /* 5726 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5727 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5728 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5729 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5730 # cr_delay is set to 0. 5731 */ 5732 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5733 "interrupt response is generated"); 5734 5735 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5736 "interrupt response is generated"); 5737 5738 /* 5739 # lpfc_multi_ring_support: Determines how many rings to spread available 5740 # cmd/rsp IOCB entries across. 5741 # Value range is [1,2]. Default value is 1. 5742 */ 5743 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5744 "SLI rings to spread IOCB entries across"); 5745 5746 /* 5747 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5748 # identifies what rctl value to configure the additional ring for. 5749 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5750 */ 5751 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5752 255, "Identifies RCTL for additional ring configuration"); 5753 5754 /* 5755 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5756 # identifies what type value to configure the additional ring for. 5757 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5758 */ 5759 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5760 255, "Identifies TYPE for additional ring configuration"); 5761 5762 /* 5763 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5764 # 0 = SmartSAN functionality disabled (default) 5765 # 1 = SmartSAN functionality enabled 5766 # This parameter will override the value of lpfc_fdmi_on module parameter. 5767 # Value range is [0,1]. Default value is 0. 5768 */ 5769 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5770 5771 /* 5772 # lpfc_fdmi_on: Controls FDMI support. 5773 # 0 No FDMI support 5774 # 1 Traditional FDMI support (default) 5775 # Traditional FDMI support means the driver will assume FDMI-2 support; 5776 # however, if that fails, it will fallback to FDMI-1. 5777 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5778 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5779 # lpfc_fdmi_on. 5780 # Value range [0,1]. Default value is 1. 5781 */ 5782 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5783 5784 /* 5785 # Specifies the maximum number of ELS cmds we can have outstanding (for 5786 # discovery). Value range is [1,64]. Default value = 32. 5787 */ 5788 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5789 "during discovery"); 5790 5791 /* 5792 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5793 # will be scanned by the SCSI midlayer when sequential scanning is 5794 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5795 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5796 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5797 # above. The lpfc driver limits the default value to 255 for two reasons. 5798 # As it bounds the sequential scan loop, scanning for thousands of luns 5799 # on a target can take minutes of wall clock time. Additionally, 5800 # there are FC targets, such as JBODs, that only recognize 8-bits of 5801 # LUN ID. When they receive a value greater than 8 bits, they chop off 5802 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5803 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5804 # valid responses at each of the LUN IDs, to believe there are multiple 5805 # devices present, when in fact, there is only 1. 5806 # A customer that is aware of their target behaviors, and the results as 5807 # indicated above, is welcome to increase the lpfc_max_luns value. 5808 # As mentioned, this value is not used by the lpfc driver, only the 5809 # SCSI midlayer. 5810 # Value range is [0,65535]. Default value is 255. 5811 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5812 */ 5813 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5814 5815 /* 5816 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5817 # Value range is [1,255], default value is 10. 5818 */ 5819 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5820 "Milliseconds driver will wait between polling FCP ring"); 5821 5822 /* 5823 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5824 # to complete in seconds. Value range is [5,180], default value is 60. 5825 */ 5826 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5827 "Maximum time to wait for task management commands to complete"); 5828 /* 5829 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5830 # support this feature 5831 # 0 = MSI disabled 5832 # 1 = MSI enabled 5833 # 2 = MSI-X enabled (default) 5834 # Value range is [0,2]. Default value is 2. 5835 */ 5836 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5837 "MSI-X (2), if possible"); 5838 5839 /* 5840 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5841 * 5842 * 0 = NVME OAS disabled 5843 * 1 = NVME OAS enabled 5844 * 5845 * Value range is [0,1]. Default value is 0. 5846 */ 5847 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5848 "Use OAS bit on NVME IOs"); 5849 5850 /* 5851 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5852 * 5853 * 0 = Put NVME Command in SGL 5854 * 1 = Embed NVME Command in WQE (unless G7) 5855 * 2 = Embed NVME Command in WQE (force) 5856 * 5857 * Value range is [0,2]. Default value is 1. 5858 */ 5859 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5860 "Embed NVME Command in WQE"); 5861 5862 /* 5863 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5864 * the driver will advertise it supports to the SCSI layer. 5865 * 5866 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5867 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5868 * 5869 * Value range is [0,256]. Default value is 8. 5870 */ 5871 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5872 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5873 "Set the number of SCSI Queues advertised"); 5874 5875 /* 5876 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5877 * will advertise it supports to the NVME and SCSI layers. This also 5878 * will map to the number of CQ/WQ pairs the driver will create. 5879 * 5880 * The NVME Layer will try to create this many, plus 1 administrative 5881 * hardware queue. The administrative queue will always map to WQ 0 5882 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5883 * 5884 * 0 = Configure the number of hdw queues to the number of active CPUs. 5885 * 1,256 = Manually specify how many hdw queues to use. 5886 * 5887 * Value range is [0,256]. Default value is 0. 5888 */ 5889 LPFC_ATTR_R(hdw_queue, 5890 LPFC_HBA_HDWQ_DEF, 5891 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5892 "Set the number of I/O Hardware Queues"); 5893 5894 #if IS_ENABLED(CONFIG_X86) 5895 /** 5896 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5897 * irq_chann_mode 5898 * @phba: Pointer to HBA context object. 5899 **/ 5900 static void 5901 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5902 { 5903 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5904 const struct cpumask *sibling_mask; 5905 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5906 5907 cpumask_clear(aff_mask); 5908 5909 if (phba->irq_chann_mode == NUMA_MODE) { 5910 /* Check if we're a NUMA architecture */ 5911 numa_node = dev_to_node(&phba->pcidev->dev); 5912 if (numa_node == NUMA_NO_NODE) { 5913 phba->irq_chann_mode = NORMAL_MODE; 5914 return; 5915 } 5916 } 5917 5918 for_each_possible_cpu(cpu) { 5919 switch (phba->irq_chann_mode) { 5920 case NUMA_MODE: 5921 if (cpu_to_node(cpu) == numa_node) 5922 cpumask_set_cpu(cpu, aff_mask); 5923 break; 5924 case NHT_MODE: 5925 sibling_mask = topology_sibling_cpumask(cpu); 5926 first_cpu = cpumask_first(sibling_mask); 5927 if (first_cpu < nr_cpu_ids) 5928 cpumask_set_cpu(first_cpu, aff_mask); 5929 break; 5930 default: 5931 break; 5932 } 5933 } 5934 } 5935 #endif 5936 5937 static void 5938 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5939 { 5940 #if IS_ENABLED(CONFIG_X86) 5941 switch (boot_cpu_data.x86_vendor) { 5942 case X86_VENDOR_AMD: 5943 /* If AMD architecture, then default is NUMA_MODE */ 5944 phba->irq_chann_mode = NUMA_MODE; 5945 break; 5946 case X86_VENDOR_INTEL: 5947 /* If Intel architecture, then default is no hyperthread mode */ 5948 phba->irq_chann_mode = NHT_MODE; 5949 break; 5950 default: 5951 phba->irq_chann_mode = NORMAL_MODE; 5952 break; 5953 } 5954 lpfc_cpumask_irq_mode_init(phba); 5955 #else 5956 phba->irq_chann_mode = NORMAL_MODE; 5957 #endif 5958 } 5959 5960 /* 5961 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5962 * for Hardware Queues to utilize. This also will map to the number 5963 * of EQ / MSI-X vectors the driver will create. This should never be 5964 * more than the number of Hardware Queues 5965 * 5966 * 0 = Configure number of IRQ Channels to: 5967 * if AMD architecture, number of CPUs on HBA's NUMA node 5968 * if Intel architecture, number of physical CPUs. 5969 * otherwise, number of active CPUs. 5970 * [1,256] = Manually specify how many IRQ Channels to use. 5971 * 5972 * Value range is [0,256]. Default value is [0]. 5973 */ 5974 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5975 module_param(lpfc_irq_chann, uint, 0444); 5976 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5977 5978 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5979 * @phba: lpfc_hba pointer. 5980 * @val: contains the initial value 5981 * 5982 * Description: 5983 * Validates the initial value is within range and assigns it to the 5984 * adapter. If not in range, an error message is posted and the 5985 * default value is assigned. 5986 * 5987 * Returns: 5988 * zero if value is in range and is set 5989 * -EINVAL if value was out of range 5990 **/ 5991 static int 5992 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5993 { 5994 const struct cpumask *aff_mask; 5995 5996 if (phba->cfg_use_msi != 2) { 5997 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5998 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5999 phba->cfg_use_msi); 6000 phba->irq_chann_mode = NORMAL_MODE; 6001 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6002 return 0; 6003 } 6004 6005 /* Check if default setting was passed */ 6006 if (val == LPFC_IRQ_CHANN_DEF && 6007 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 6008 phba->sli_rev == LPFC_SLI_REV4) 6009 lpfc_assign_default_irq_chann(phba); 6010 6011 if (phba->irq_chann_mode != NORMAL_MODE) { 6012 aff_mask = &phba->sli4_hba.irq_aff_mask; 6013 6014 if (cpumask_empty(aff_mask)) { 6015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6016 "8533 Could not identify CPUS for " 6017 "mode %d, ignoring\n", 6018 phba->irq_chann_mode); 6019 phba->irq_chann_mode = NORMAL_MODE; 6020 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6021 } else { 6022 phba->cfg_irq_chann = cpumask_weight(aff_mask); 6023 6024 /* If no hyperthread mode, then set hdwq count to 6025 * aff_mask weight as well 6026 */ 6027 if (phba->irq_chann_mode == NHT_MODE) 6028 phba->cfg_hdw_queue = phba->cfg_irq_chann; 6029 6030 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6031 "8543 lpfc_irq_chann set to %u " 6032 "(mode: %d)\n", phba->cfg_irq_chann, 6033 phba->irq_chann_mode); 6034 } 6035 } else { 6036 if (val > LPFC_IRQ_CHANN_MAX) { 6037 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6038 "8545 lpfc_irq_chann attribute cannot " 6039 "be set to %u, allowed range is " 6040 "[%u,%u]\n", 6041 val, 6042 LPFC_IRQ_CHANN_MIN, 6043 LPFC_IRQ_CHANN_MAX); 6044 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 6045 return -EINVAL; 6046 } 6047 if (phba->sli_rev == LPFC_SLI_REV4) { 6048 phba->cfg_irq_chann = val; 6049 } else { 6050 phba->cfg_irq_chann = 2; 6051 phba->cfg_hdw_queue = 1; 6052 } 6053 } 6054 6055 return 0; 6056 } 6057 6058 /** 6059 * lpfc_irq_chann_show - Display value of irq_chann 6060 * @dev: class converted to a Scsi_host structure. 6061 * @attr: device attribute, not used. 6062 * @buf: on return contains a string with the list sizes 6063 * 6064 * Returns: size of formatted string. 6065 **/ 6066 static ssize_t 6067 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 6068 char *buf) 6069 { 6070 struct Scsi_Host *shost = class_to_shost(dev); 6071 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6072 struct lpfc_hba *phba = vport->phba; 6073 6074 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 6075 } 6076 6077 static DEVICE_ATTR_RO(lpfc_irq_chann); 6078 6079 /* 6080 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 6081 # 0 = HBA resets disabled 6082 # 1 = HBA resets enabled (default) 6083 # 2 = HBA reset via PCI bus reset enabled 6084 # Value range is [0,2]. Default value is 1. 6085 */ 6086 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 6087 6088 /* 6089 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 6090 # 0 = HBA Heartbeat disabled 6091 # 1 = HBA Heartbeat enabled (default) 6092 # Value range is [0,1]. Default value is 1. 6093 */ 6094 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 6095 6096 /* 6097 # lpfc_EnableXLane: Enable Express Lane Feature 6098 # 0x0 Express Lane Feature disabled 6099 # 0x1 Express Lane Feature enabled 6100 # Value range is [0,1]. Default value is 0. 6101 */ 6102 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 6103 6104 /* 6105 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 6106 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 6107 # Value range is [0x0,0x7f]. Default value is 0 6108 */ 6109 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 6110 6111 /* 6112 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 6113 # 0 = BlockGuard disabled (default) 6114 # 1 = BlockGuard enabled 6115 # Value range is [0,1]. Default value is 0. 6116 */ 6117 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 6118 6119 /* 6120 # lpfc_prot_mask: 6121 # - Bit mask of host protection capabilities used to register with the 6122 # SCSI mid-layer 6123 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 6124 # - Allows you to ultimately specify which profiles to use 6125 # - Default will result in registering capabilities for all profiles. 6126 # - SHOST_DIF_TYPE1_PROTECTION 1 6127 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 6128 # - SHOST_DIX_TYPE0_PROTECTION 8 6129 # HBA supports DIX Type 0: Host to HBA protection only 6130 # - SHOST_DIX_TYPE1_PROTECTION 16 6131 # HBA supports DIX Type 1: Host to HBA Type 1 protection 6132 # 6133 */ 6134 LPFC_ATTR(prot_mask, 6135 (SHOST_DIF_TYPE1_PROTECTION | 6136 SHOST_DIX_TYPE0_PROTECTION | 6137 SHOST_DIX_TYPE1_PROTECTION), 6138 0, 6139 (SHOST_DIF_TYPE1_PROTECTION | 6140 SHOST_DIX_TYPE0_PROTECTION | 6141 SHOST_DIX_TYPE1_PROTECTION), 6142 "T10-DIF host protection capabilities mask"); 6143 6144 /* 6145 # lpfc_prot_guard: 6146 # - Bit mask of protection guard types to register with the SCSI mid-layer 6147 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 6148 # - Allows you to ultimately specify which profiles to use 6149 # - Default will result in registering capabilities for all guard types 6150 # 6151 */ 6152 LPFC_ATTR(prot_guard, 6153 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 6154 "T10-DIF host protection guard type"); 6155 6156 /* 6157 * Delay initial NPort discovery when Clean Address bit is cleared in 6158 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 6159 * This parameter can have value 0 or 1. 6160 * When this parameter is set to 0, no delay is added to the initial 6161 * discovery. 6162 * When this parameter is set to non-zero value, initial Nport discovery is 6163 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 6164 * accept and FCID/Fabric name/Fabric portname is changed. 6165 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 6166 * when Clean Address bit is cleared in FLOGI/FDISC 6167 * accept and FCID/Fabric name/Fabric portname is changed. 6168 * Default value is 0. 6169 */ 6170 LPFC_ATTR(delay_discovery, 0, 0, 1, 6171 "Delay NPort discovery when Clean Address bit is cleared."); 6172 6173 /* 6174 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 6175 * This value can be set to values between 64 and 4096. The default value 6176 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 6177 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 6178 * Because of the additional overhead involved in setting up T10-DIF, 6179 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 6180 * and will be limited to 512 if BlockGuard is enabled under SLI3. 6181 */ 6182 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6183 module_param(lpfc_sg_seg_cnt, uint, 0444); 6184 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 6185 6186 /** 6187 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 6188 * configured for the adapter 6189 * @dev: class converted to a Scsi_host structure. 6190 * @attr: device attribute, not used. 6191 * @buf: on return contains a string with the list sizes 6192 * 6193 * Returns: size of formatted string. 6194 **/ 6195 static ssize_t 6196 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6197 char *buf) 6198 { 6199 struct Scsi_Host *shost = class_to_shost(dev); 6200 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6201 struct lpfc_hba *phba = vport->phba; 6202 int len; 6203 6204 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6205 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6206 6207 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6208 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6209 phba->cfg_nvme_seg_cnt); 6210 return len; 6211 } 6212 6213 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6214 6215 /** 6216 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6217 * @phba: lpfc_hba pointer. 6218 * @val: contains the initial value 6219 * 6220 * Description: 6221 * Validates the initial value is within range and assigns it to the 6222 * adapter. If not in range, an error message is posted and the 6223 * default value is assigned. 6224 * 6225 * Returns: 6226 * zero if value is in range and is set 6227 * -EINVAL if value was out of range 6228 **/ 6229 static int 6230 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6231 { 6232 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6233 phba->cfg_sg_seg_cnt = val; 6234 return 0; 6235 } 6236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6237 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 6238 "allowed range is [%d, %d]\n", 6239 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6240 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6241 return -EINVAL; 6242 } 6243 6244 /* 6245 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6246 * 0 = MDS Diagnostics disabled (default) 6247 * 1 = MDS Diagnostics enabled 6248 * Value range is [0,1]. Default value is 0. 6249 */ 6250 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6251 6252 /* 6253 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6254 * 0 = Disable firmware logging (default) 6255 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6256 * Value range [0..4]. Default value is 0 6257 */ 6258 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6259 lpfc_param_show(ras_fwlog_buffsize); 6260 6261 static ssize_t 6262 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6263 { 6264 int ret = 0; 6265 enum ras_state state; 6266 6267 if (!lpfc_rangecheck(val, 0, 4)) 6268 return -EINVAL; 6269 6270 if (phba->cfg_ras_fwlog_buffsize == val) 6271 return 0; 6272 6273 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6274 return -EINVAL; 6275 6276 spin_lock_irq(&phba->hbalock); 6277 state = phba->ras_fwlog.state; 6278 spin_unlock_irq(&phba->hbalock); 6279 6280 if (state == REG_INPROGRESS) { 6281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6282 "registration is in progress\n"); 6283 return -EBUSY; 6284 } 6285 6286 /* For disable logging: stop the logs and free the DMA. 6287 * For ras_fwlog_buffsize size change we still need to free and 6288 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6289 */ 6290 phba->cfg_ras_fwlog_buffsize = val; 6291 if (state == ACTIVE) { 6292 lpfc_ras_stop_fwlog(phba); 6293 lpfc_sli4_ras_dma_free(phba); 6294 } 6295 6296 lpfc_sli4_ras_init(phba); 6297 if (phba->ras_fwlog.ras_enabled) 6298 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6299 LPFC_RAS_ENABLE_LOGGING); 6300 return ret; 6301 } 6302 6303 lpfc_param_store(ras_fwlog_buffsize); 6304 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6305 6306 /* 6307 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6308 * Valid only if firmware logging is enabled 6309 * 0(Least Verbosity) 4 (most verbosity) 6310 * Value range is [0..4]. Default value is 0 6311 */ 6312 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6313 6314 /* 6315 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6316 * Default function which has RAS support : 0 6317 * Value Range is [0..7]. 6318 * FW logging is a global action and enablement is via a specific 6319 * port. 6320 */ 6321 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6322 6323 /* 6324 * lpfc_enable_bbcr: Enable BB Credit Recovery 6325 * 0 = BB Credit Recovery disabled 6326 * 1 = BB Credit Recovery enabled (default) 6327 * Value range is [0,1]. Default value is 1. 6328 */ 6329 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6330 6331 /* Signaling module parameters */ 6332 int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 6333 module_param(lpfc_fabric_cgn_frequency, int, 0444); 6334 MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); 6335 6336 int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ 6337 module_param(lpfc_acqe_cgn_frequency, int, 0444); 6338 MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); 6339 6340 int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ 6341 module_param(lpfc_use_cgn_signal, int, 0444); 6342 MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); 6343 6344 /* 6345 * lpfc_enable_dpp: Enable DPP on G7 6346 * 0 = DPP on G7 disabled 6347 * 1 = DPP on G7 enabled (default) 6348 * Value range is [0,1]. Default value is 1. 6349 */ 6350 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6351 6352 /* 6353 * lpfc_enable_mi: Enable FDMI MIB 6354 * 0 = disabled 6355 * 1 = enabled (default) 6356 * Value range is [0,1]. 6357 */ 6358 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6359 6360 /* 6361 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 6362 * either vmid_app_header or vmid_priority_tagging is enabled. 6363 * 4 - 255 = vmid support enabled for 4-255 VMs 6364 * Value range is [4,255]. 6365 */ 6366 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 6367 "Maximum number of VMs supported"); 6368 6369 /* 6370 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 6371 * 0 = Timeout is disabled 6372 * Value range is [0,24]. 6373 */ 6374 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 6375 "Inactivity timeout in hours"); 6376 6377 /* 6378 * lpfc_vmid_app_header: Enable App Header VMID support 6379 * 0 = Support is disabled (default) 6380 * 1 = Support is enabled 6381 * Value range is [0,1]. 6382 */ 6383 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 6384 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 6385 "Enable App Header VMID support"); 6386 6387 /* 6388 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 6389 * 0 = Support is disabled (default) 6390 * 1 = Allow supported targets only 6391 * 2 = Allow all targets 6392 * Value range is [0,2]. 6393 */ 6394 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 6395 LPFC_VMID_PRIO_TAG_DISABLE, 6396 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 6397 "Enable Priority Tagging VMID support"); 6398 6399 struct device_attribute *lpfc_hba_attrs[] = { 6400 &dev_attr_nvme_info, 6401 &dev_attr_scsi_stat, 6402 &dev_attr_bg_info, 6403 &dev_attr_bg_guard_err, 6404 &dev_attr_bg_apptag_err, 6405 &dev_attr_bg_reftag_err, 6406 &dev_attr_info, 6407 &dev_attr_serialnum, 6408 &dev_attr_modeldesc, 6409 &dev_attr_modelname, 6410 &dev_attr_programtype, 6411 &dev_attr_portnum, 6412 &dev_attr_fwrev, 6413 &dev_attr_hdw, 6414 &dev_attr_option_rom_version, 6415 &dev_attr_link_state, 6416 &dev_attr_num_discovered_ports, 6417 &dev_attr_menlo_mgmt_mode, 6418 &dev_attr_lpfc_drvr_version, 6419 &dev_attr_lpfc_enable_fip, 6420 &dev_attr_lpfc_temp_sensor, 6421 &dev_attr_lpfc_log_verbose, 6422 &dev_attr_lpfc_lun_queue_depth, 6423 &dev_attr_lpfc_tgt_queue_depth, 6424 &dev_attr_lpfc_hba_queue_depth, 6425 &dev_attr_lpfc_peer_port_login, 6426 &dev_attr_lpfc_nodev_tmo, 6427 &dev_attr_lpfc_devloss_tmo, 6428 &dev_attr_lpfc_enable_fc4_type, 6429 &dev_attr_lpfc_fcp_class, 6430 &dev_attr_lpfc_use_adisc, 6431 &dev_attr_lpfc_first_burst_size, 6432 &dev_attr_lpfc_ack0, 6433 &dev_attr_lpfc_xri_rebalancing, 6434 &dev_attr_lpfc_topology, 6435 &dev_attr_lpfc_scan_down, 6436 &dev_attr_lpfc_link_speed, 6437 &dev_attr_lpfc_fcp_io_sched, 6438 &dev_attr_lpfc_ns_query, 6439 &dev_attr_lpfc_fcp2_no_tgt_reset, 6440 &dev_attr_lpfc_cr_delay, 6441 &dev_attr_lpfc_cr_count, 6442 &dev_attr_lpfc_multi_ring_support, 6443 &dev_attr_lpfc_multi_ring_rctl, 6444 &dev_attr_lpfc_multi_ring_type, 6445 &dev_attr_lpfc_fdmi_on, 6446 &dev_attr_lpfc_enable_SmartSAN, 6447 &dev_attr_lpfc_max_luns, 6448 &dev_attr_lpfc_enable_npiv, 6449 &dev_attr_lpfc_fcf_failover_policy, 6450 &dev_attr_lpfc_enable_rrq, 6451 &dev_attr_lpfc_fcp_wait_abts_rsp, 6452 &dev_attr_nport_evt_cnt, 6453 &dev_attr_board_mode, 6454 &dev_attr_max_vpi, 6455 &dev_attr_used_vpi, 6456 &dev_attr_max_rpi, 6457 &dev_attr_used_rpi, 6458 &dev_attr_max_xri, 6459 &dev_attr_used_xri, 6460 &dev_attr_npiv_info, 6461 &dev_attr_issue_reset, 6462 &dev_attr_lpfc_poll, 6463 &dev_attr_lpfc_poll_tmo, 6464 &dev_attr_lpfc_task_mgmt_tmo, 6465 &dev_attr_lpfc_use_msi, 6466 &dev_attr_lpfc_nvme_oas, 6467 &dev_attr_lpfc_nvme_embed_cmd, 6468 &dev_attr_lpfc_fcp_imax, 6469 &dev_attr_lpfc_force_rscn, 6470 &dev_attr_lpfc_cq_poll_threshold, 6471 &dev_attr_lpfc_cq_max_proc_limit, 6472 &dev_attr_lpfc_fcp_cpu_map, 6473 &dev_attr_lpfc_fcp_mq_threshold, 6474 &dev_attr_lpfc_hdw_queue, 6475 &dev_attr_lpfc_irq_chann, 6476 &dev_attr_lpfc_suppress_rsp, 6477 &dev_attr_lpfc_nvmet_mrq, 6478 &dev_attr_lpfc_nvmet_mrq_post, 6479 &dev_attr_lpfc_nvme_enable_fb, 6480 &dev_attr_lpfc_nvmet_fb_size, 6481 &dev_attr_lpfc_enable_bg, 6482 &dev_attr_lpfc_soft_wwnn, 6483 &dev_attr_lpfc_soft_wwpn, 6484 &dev_attr_lpfc_soft_wwn_enable, 6485 &dev_attr_lpfc_enable_hba_reset, 6486 &dev_attr_lpfc_enable_hba_heartbeat, 6487 &dev_attr_lpfc_EnableXLane, 6488 &dev_attr_lpfc_XLanePriority, 6489 &dev_attr_lpfc_xlane_lun, 6490 &dev_attr_lpfc_xlane_tgt, 6491 &dev_attr_lpfc_xlane_vpt, 6492 &dev_attr_lpfc_xlane_lun_state, 6493 &dev_attr_lpfc_xlane_lun_status, 6494 &dev_attr_lpfc_xlane_priority, 6495 &dev_attr_lpfc_sg_seg_cnt, 6496 &dev_attr_lpfc_max_scsicmpl_time, 6497 &dev_attr_lpfc_stat_data_ctrl, 6498 &dev_attr_lpfc_aer_support, 6499 &dev_attr_lpfc_aer_state_cleanup, 6500 &dev_attr_lpfc_sriov_nr_virtfn, 6501 &dev_attr_lpfc_req_fw_upgrade, 6502 &dev_attr_lpfc_suppress_link_up, 6503 &dev_attr_iocb_hw, 6504 &dev_attr_pls, 6505 &dev_attr_pt, 6506 &dev_attr_txq_hw, 6507 &dev_attr_txcmplq_hw, 6508 &dev_attr_lpfc_sriov_hw_max_virtfn, 6509 &dev_attr_protocol, 6510 &dev_attr_lpfc_xlane_supported, 6511 &dev_attr_lpfc_enable_mds_diags, 6512 &dev_attr_lpfc_ras_fwlog_buffsize, 6513 &dev_attr_lpfc_ras_fwlog_level, 6514 &dev_attr_lpfc_ras_fwlog_func, 6515 &dev_attr_lpfc_enable_bbcr, 6516 &dev_attr_lpfc_enable_dpp, 6517 &dev_attr_lpfc_enable_mi, 6518 &dev_attr_cmf_info, 6519 &dev_attr_lpfc_max_vmid, 6520 &dev_attr_lpfc_vmid_inactivity_timeout, 6521 &dev_attr_lpfc_vmid_app_header, 6522 &dev_attr_lpfc_vmid_priority_tagging, 6523 NULL, 6524 }; 6525 6526 struct device_attribute *lpfc_vport_attrs[] = { 6527 &dev_attr_info, 6528 &dev_attr_link_state, 6529 &dev_attr_num_discovered_ports, 6530 &dev_attr_lpfc_drvr_version, 6531 &dev_attr_lpfc_log_verbose, 6532 &dev_attr_lpfc_lun_queue_depth, 6533 &dev_attr_lpfc_tgt_queue_depth, 6534 &dev_attr_lpfc_nodev_tmo, 6535 &dev_attr_lpfc_devloss_tmo, 6536 &dev_attr_lpfc_hba_queue_depth, 6537 &dev_attr_lpfc_peer_port_login, 6538 &dev_attr_lpfc_restrict_login, 6539 &dev_attr_lpfc_fcp_class, 6540 &dev_attr_lpfc_use_adisc, 6541 &dev_attr_lpfc_first_burst_size, 6542 &dev_attr_lpfc_max_luns, 6543 &dev_attr_nport_evt_cnt, 6544 &dev_attr_npiv_info, 6545 &dev_attr_lpfc_enable_da_id, 6546 &dev_attr_lpfc_max_scsicmpl_time, 6547 &dev_attr_lpfc_stat_data_ctrl, 6548 &dev_attr_lpfc_static_vport, 6549 &dev_attr_cmf_info, 6550 NULL, 6551 }; 6552 6553 /** 6554 * sysfs_ctlreg_write - Write method for writing to ctlreg 6555 * @filp: open sysfs file 6556 * @kobj: kernel kobject that contains the kernel class device. 6557 * @bin_attr: kernel attributes passed to us. 6558 * @buf: contains the data to be written to the adapter IOREG space. 6559 * @off: offset into buffer to beginning of data. 6560 * @count: bytes to transfer. 6561 * 6562 * Description: 6563 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6564 * Uses the adapter io control registers to send buf contents to the adapter. 6565 * 6566 * Returns: 6567 * -ERANGE off and count combo out of range 6568 * -EINVAL off, count or buff address invalid 6569 * -EPERM adapter is offline 6570 * value of count, buf contents written 6571 **/ 6572 static ssize_t 6573 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6574 struct bin_attribute *bin_attr, 6575 char *buf, loff_t off, size_t count) 6576 { 6577 size_t buf_off; 6578 struct device *dev = container_of(kobj, struct device, kobj); 6579 struct Scsi_Host *shost = class_to_shost(dev); 6580 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6581 struct lpfc_hba *phba = vport->phba; 6582 6583 if (phba->sli_rev >= LPFC_SLI_REV4) 6584 return -EPERM; 6585 6586 if ((off + count) > FF_REG_AREA_SIZE) 6587 return -ERANGE; 6588 6589 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6590 return 0; 6591 6592 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6593 return -EINVAL; 6594 6595 /* This is to protect HBA registers from accidental writes. */ 6596 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6597 return -EINVAL; 6598 6599 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6600 return -EPERM; 6601 6602 spin_lock_irq(&phba->hbalock); 6603 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6604 buf_off += sizeof(uint32_t)) 6605 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6606 phba->ctrl_regs_memmap_p + off + buf_off); 6607 6608 spin_unlock_irq(&phba->hbalock); 6609 6610 return count; 6611 } 6612 6613 /** 6614 * sysfs_ctlreg_read - Read method for reading from ctlreg 6615 * @filp: open sysfs file 6616 * @kobj: kernel kobject that contains the kernel class device. 6617 * @bin_attr: kernel attributes passed to us. 6618 * @buf: if successful contains the data from the adapter IOREG space. 6619 * @off: offset into buffer to beginning of data. 6620 * @count: bytes to transfer. 6621 * 6622 * Description: 6623 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6624 * Uses the adapter io control registers to read data into buf. 6625 * 6626 * Returns: 6627 * -ERANGE off and count combo out of range 6628 * -EINVAL off, count or buff address invalid 6629 * value of count, buf contents read 6630 **/ 6631 static ssize_t 6632 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6633 struct bin_attribute *bin_attr, 6634 char *buf, loff_t off, size_t count) 6635 { 6636 size_t buf_off; 6637 uint32_t * tmp_ptr; 6638 struct device *dev = container_of(kobj, struct device, kobj); 6639 struct Scsi_Host *shost = class_to_shost(dev); 6640 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6641 struct lpfc_hba *phba = vport->phba; 6642 6643 if (phba->sli_rev >= LPFC_SLI_REV4) 6644 return -EPERM; 6645 6646 if (off > FF_REG_AREA_SIZE) 6647 return -ERANGE; 6648 6649 if ((off + count) > FF_REG_AREA_SIZE) 6650 count = FF_REG_AREA_SIZE - off; 6651 6652 if (count == 0) return 0; 6653 6654 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6655 return -EINVAL; 6656 6657 spin_lock_irq(&phba->hbalock); 6658 6659 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6660 tmp_ptr = (uint32_t *)(buf + buf_off); 6661 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6662 } 6663 6664 spin_unlock_irq(&phba->hbalock); 6665 6666 return count; 6667 } 6668 6669 static struct bin_attribute sysfs_ctlreg_attr = { 6670 .attr = { 6671 .name = "ctlreg", 6672 .mode = S_IRUSR | S_IWUSR, 6673 }, 6674 .size = 256, 6675 .read = sysfs_ctlreg_read, 6676 .write = sysfs_ctlreg_write, 6677 }; 6678 6679 /** 6680 * sysfs_mbox_write - Write method for writing information via mbox 6681 * @filp: open sysfs file 6682 * @kobj: kernel kobject that contains the kernel class device. 6683 * @bin_attr: kernel attributes passed to us. 6684 * @buf: contains the data to be written to sysfs mbox. 6685 * @off: offset into buffer to beginning of data. 6686 * @count: bytes to transfer. 6687 * 6688 * Description: 6689 * Deprecated function. All mailbox access from user space is performed via the 6690 * bsg interface. 6691 * 6692 * Returns: 6693 * -EPERM operation not permitted 6694 **/ 6695 static ssize_t 6696 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6697 struct bin_attribute *bin_attr, 6698 char *buf, loff_t off, size_t count) 6699 { 6700 return -EPERM; 6701 } 6702 6703 /** 6704 * sysfs_mbox_read - Read method for reading information via mbox 6705 * @filp: open sysfs file 6706 * @kobj: kernel kobject that contains the kernel class device. 6707 * @bin_attr: kernel attributes passed to us. 6708 * @buf: contains the data to be read from sysfs mbox. 6709 * @off: offset into buffer to beginning of data. 6710 * @count: bytes to transfer. 6711 * 6712 * Description: 6713 * Deprecated function. All mailbox access from user space is performed via the 6714 * bsg interface. 6715 * 6716 * Returns: 6717 * -EPERM operation not permitted 6718 **/ 6719 static ssize_t 6720 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6721 struct bin_attribute *bin_attr, 6722 char *buf, loff_t off, size_t count) 6723 { 6724 return -EPERM; 6725 } 6726 6727 static struct bin_attribute sysfs_mbox_attr = { 6728 .attr = { 6729 .name = "mbox", 6730 .mode = S_IRUSR | S_IWUSR, 6731 }, 6732 .size = MAILBOX_SYSFS_MAX, 6733 .read = sysfs_mbox_read, 6734 .write = sysfs_mbox_write, 6735 }; 6736 6737 /** 6738 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6739 * @vport: address of lpfc vport structure. 6740 * 6741 * Return codes: 6742 * zero on success 6743 * error return code from sysfs_create_bin_file() 6744 **/ 6745 int 6746 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6747 { 6748 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6749 int error; 6750 6751 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6752 &sysfs_drvr_stat_data_attr); 6753 6754 /* Virtual ports do not need ctrl_reg and mbox */ 6755 if (error || vport->port_type == LPFC_NPIV_PORT) 6756 goto out; 6757 6758 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6759 &sysfs_ctlreg_attr); 6760 if (error) 6761 goto out_remove_stat_attr; 6762 6763 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6764 &sysfs_mbox_attr); 6765 if (error) 6766 goto out_remove_ctlreg_attr; 6767 6768 return 0; 6769 out_remove_ctlreg_attr: 6770 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6771 out_remove_stat_attr: 6772 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6773 &sysfs_drvr_stat_data_attr); 6774 out: 6775 return error; 6776 } 6777 6778 /** 6779 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6780 * @vport: address of lpfc vport structure. 6781 **/ 6782 void 6783 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6784 { 6785 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6786 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6787 &sysfs_drvr_stat_data_attr); 6788 /* Virtual ports do not need ctrl_reg and mbox */ 6789 if (vport->port_type == LPFC_NPIV_PORT) 6790 return; 6791 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6792 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6793 } 6794 6795 /* 6796 * Dynamic FC Host Attributes Support 6797 */ 6798 6799 /** 6800 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6801 * @shost: kernel scsi host pointer. 6802 **/ 6803 static void 6804 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6805 { 6806 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6807 6808 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6809 sizeof fc_host_symbolic_name(shost)); 6810 } 6811 6812 /** 6813 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6814 * @shost: kernel scsi host pointer. 6815 **/ 6816 static void 6817 lpfc_get_host_port_id(struct Scsi_Host *shost) 6818 { 6819 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6820 6821 /* note: fc_myDID already in cpu endianness */ 6822 fc_host_port_id(shost) = vport->fc_myDID; 6823 } 6824 6825 /** 6826 * lpfc_get_host_port_type - Set the value of the scsi host port type 6827 * @shost: kernel scsi host pointer. 6828 **/ 6829 static void 6830 lpfc_get_host_port_type(struct Scsi_Host *shost) 6831 { 6832 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6833 struct lpfc_hba *phba = vport->phba; 6834 6835 spin_lock_irq(shost->host_lock); 6836 6837 if (vport->port_type == LPFC_NPIV_PORT) { 6838 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6839 } else if (lpfc_is_link_up(phba)) { 6840 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6841 if (vport->fc_flag & FC_PUBLIC_LOOP) 6842 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6843 else 6844 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6845 } else { 6846 if (vport->fc_flag & FC_FABRIC) 6847 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6848 else 6849 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6850 } 6851 } else 6852 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6853 6854 spin_unlock_irq(shost->host_lock); 6855 } 6856 6857 /** 6858 * lpfc_get_host_port_state - Set the value of the scsi host port state 6859 * @shost: kernel scsi host pointer. 6860 **/ 6861 static void 6862 lpfc_get_host_port_state(struct Scsi_Host *shost) 6863 { 6864 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6865 struct lpfc_hba *phba = vport->phba; 6866 6867 spin_lock_irq(shost->host_lock); 6868 6869 if (vport->fc_flag & FC_OFFLINE_MODE) 6870 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6871 else { 6872 switch (phba->link_state) { 6873 case LPFC_LINK_UNKNOWN: 6874 case LPFC_LINK_DOWN: 6875 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6876 break; 6877 case LPFC_LINK_UP: 6878 case LPFC_CLEAR_LA: 6879 case LPFC_HBA_READY: 6880 /* Links up, reports port state accordingly */ 6881 if (vport->port_state < LPFC_VPORT_READY) 6882 fc_host_port_state(shost) = 6883 FC_PORTSTATE_BYPASSED; 6884 else 6885 fc_host_port_state(shost) = 6886 FC_PORTSTATE_ONLINE; 6887 break; 6888 case LPFC_HBA_ERROR: 6889 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6890 break; 6891 default: 6892 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6893 break; 6894 } 6895 } 6896 6897 spin_unlock_irq(shost->host_lock); 6898 } 6899 6900 /** 6901 * lpfc_get_host_speed - Set the value of the scsi host speed 6902 * @shost: kernel scsi host pointer. 6903 **/ 6904 static void 6905 lpfc_get_host_speed(struct Scsi_Host *shost) 6906 { 6907 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6908 struct lpfc_hba *phba = vport->phba; 6909 6910 spin_lock_irq(shost->host_lock); 6911 6912 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6913 switch(phba->fc_linkspeed) { 6914 case LPFC_LINK_SPEED_1GHZ: 6915 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6916 break; 6917 case LPFC_LINK_SPEED_2GHZ: 6918 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6919 break; 6920 case LPFC_LINK_SPEED_4GHZ: 6921 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6922 break; 6923 case LPFC_LINK_SPEED_8GHZ: 6924 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6925 break; 6926 case LPFC_LINK_SPEED_10GHZ: 6927 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6928 break; 6929 case LPFC_LINK_SPEED_16GHZ: 6930 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6931 break; 6932 case LPFC_LINK_SPEED_32GHZ: 6933 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6934 break; 6935 case LPFC_LINK_SPEED_64GHZ: 6936 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6937 break; 6938 case LPFC_LINK_SPEED_128GHZ: 6939 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6940 break; 6941 case LPFC_LINK_SPEED_256GHZ: 6942 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6943 break; 6944 default: 6945 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6946 break; 6947 } 6948 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6949 switch (phba->fc_linkspeed) { 6950 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6951 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6952 break; 6953 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6954 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6955 break; 6956 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6957 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6958 break; 6959 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6960 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6961 break; 6962 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6963 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6964 break; 6965 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6966 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6967 break; 6968 default: 6969 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6970 break; 6971 } 6972 } else 6973 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6974 6975 spin_unlock_irq(shost->host_lock); 6976 } 6977 6978 /** 6979 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6980 * @shost: kernel scsi host pointer. 6981 **/ 6982 static void 6983 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6984 { 6985 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6986 struct lpfc_hba *phba = vport->phba; 6987 u64 node_name; 6988 6989 spin_lock_irq(shost->host_lock); 6990 6991 if ((vport->port_state > LPFC_FLOGI) && 6992 ((vport->fc_flag & FC_FABRIC) || 6993 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6994 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6995 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6996 else 6997 /* fabric is local port if there is no F/FL_Port */ 6998 node_name = 0; 6999 7000 spin_unlock_irq(shost->host_lock); 7001 7002 fc_host_fabric_name(shost) = node_name; 7003 } 7004 7005 /** 7006 * lpfc_get_stats - Return statistical information about the adapter 7007 * @shost: kernel scsi host pointer. 7008 * 7009 * Notes: 7010 * NULL on error for link down, no mbox pool, sli2 active, 7011 * management not allowed, memory allocation error, or mbox error. 7012 * 7013 * Returns: 7014 * NULL for error 7015 * address of the adapter host statistics 7016 **/ 7017 static struct fc_host_statistics * 7018 lpfc_get_stats(struct Scsi_Host *shost) 7019 { 7020 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7021 struct lpfc_hba *phba = vport->phba; 7022 struct lpfc_sli *psli = &phba->sli; 7023 struct fc_host_statistics *hs = &phba->link_stats; 7024 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 7025 LPFC_MBOXQ_t *pmboxq; 7026 MAILBOX_t *pmb; 7027 int rc = 0; 7028 7029 /* 7030 * prevent udev from issuing mailbox commands until the port is 7031 * configured. 7032 */ 7033 if (phba->link_state < LPFC_LINK_DOWN || 7034 !phba->mbox_mem_pool || 7035 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 7036 return NULL; 7037 7038 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 7039 return NULL; 7040 7041 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7042 if (!pmboxq) 7043 return NULL; 7044 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 7045 7046 pmb = &pmboxq->u.mb; 7047 pmb->mbxCommand = MBX_READ_STATUS; 7048 pmb->mbxOwner = OWN_HOST; 7049 pmboxq->ctx_buf = NULL; 7050 pmboxq->vport = vport; 7051 7052 if (vport->fc_flag & FC_OFFLINE_MODE) { 7053 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7054 if (rc != MBX_SUCCESS) { 7055 mempool_free(pmboxq, phba->mbox_mem_pool); 7056 return NULL; 7057 } 7058 } else { 7059 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7060 if (rc != MBX_SUCCESS) { 7061 if (rc != MBX_TIMEOUT) 7062 mempool_free(pmboxq, phba->mbox_mem_pool); 7063 return NULL; 7064 } 7065 } 7066 7067 memset(hs, 0, sizeof (struct fc_host_statistics)); 7068 7069 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 7070 /* 7071 * The MBX_READ_STATUS returns tx_k_bytes which has to 7072 * converted to words 7073 */ 7074 hs->tx_words = (uint64_t) 7075 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 7076 * (uint64_t)256); 7077 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 7078 hs->rx_words = (uint64_t) 7079 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 7080 * (uint64_t)256); 7081 7082 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 7083 pmb->mbxCommand = MBX_READ_LNK_STAT; 7084 pmb->mbxOwner = OWN_HOST; 7085 pmboxq->ctx_buf = NULL; 7086 pmboxq->vport = vport; 7087 7088 if (vport->fc_flag & FC_OFFLINE_MODE) { 7089 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7090 if (rc != MBX_SUCCESS) { 7091 mempool_free(pmboxq, phba->mbox_mem_pool); 7092 return NULL; 7093 } 7094 } else { 7095 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7096 if (rc != MBX_SUCCESS) { 7097 if (rc != MBX_TIMEOUT) 7098 mempool_free(pmboxq, phba->mbox_mem_pool); 7099 return NULL; 7100 } 7101 } 7102 7103 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7104 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7105 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7106 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7107 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7108 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7109 hs->error_frames = pmb->un.varRdLnk.crcCnt; 7110 7111 hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); 7112 hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); 7113 7114 hs->link_failure_count -= lso->link_failure_count; 7115 hs->loss_of_sync_count -= lso->loss_of_sync_count; 7116 hs->loss_of_signal_count -= lso->loss_of_signal_count; 7117 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 7118 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 7119 hs->invalid_crc_count -= lso->invalid_crc_count; 7120 hs->error_frames -= lso->error_frames; 7121 7122 if (phba->hba_flag & HBA_FCOE_MODE) { 7123 hs->lip_count = -1; 7124 hs->nos_count = (phba->link_events >> 1); 7125 hs->nos_count -= lso->link_events; 7126 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 7127 hs->lip_count = (phba->fc_eventTag >> 1); 7128 hs->lip_count -= lso->link_events; 7129 hs->nos_count = -1; 7130 } else { 7131 hs->lip_count = -1; 7132 hs->nos_count = (phba->fc_eventTag >> 1); 7133 hs->nos_count -= lso->link_events; 7134 } 7135 7136 hs->dumped_frames = -1; 7137 7138 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 7139 7140 mempool_free(pmboxq, phba->mbox_mem_pool); 7141 7142 return hs; 7143 } 7144 7145 /** 7146 * lpfc_reset_stats - Copy the adapter link stats information 7147 * @shost: kernel scsi host pointer. 7148 **/ 7149 static void 7150 lpfc_reset_stats(struct Scsi_Host *shost) 7151 { 7152 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7153 struct lpfc_hba *phba = vport->phba; 7154 struct lpfc_sli *psli = &phba->sli; 7155 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 7156 LPFC_MBOXQ_t *pmboxq; 7157 MAILBOX_t *pmb; 7158 int rc = 0; 7159 7160 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 7161 return; 7162 7163 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7164 if (!pmboxq) 7165 return; 7166 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7167 7168 pmb = &pmboxq->u.mb; 7169 pmb->mbxCommand = MBX_READ_STATUS; 7170 pmb->mbxOwner = OWN_HOST; 7171 pmb->un.varWords[0] = 0x1; /* reset request */ 7172 pmboxq->ctx_buf = NULL; 7173 pmboxq->vport = vport; 7174 7175 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7176 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7177 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7178 if (rc != MBX_SUCCESS) { 7179 mempool_free(pmboxq, phba->mbox_mem_pool); 7180 return; 7181 } 7182 } else { 7183 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7184 if (rc != MBX_SUCCESS) { 7185 if (rc != MBX_TIMEOUT) 7186 mempool_free(pmboxq, phba->mbox_mem_pool); 7187 return; 7188 } 7189 } 7190 7191 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 7192 pmb->mbxCommand = MBX_READ_LNK_STAT; 7193 pmb->mbxOwner = OWN_HOST; 7194 pmboxq->ctx_buf = NULL; 7195 pmboxq->vport = vport; 7196 7197 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7198 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7199 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7200 if (rc != MBX_SUCCESS) { 7201 mempool_free(pmboxq, phba->mbox_mem_pool); 7202 return; 7203 } 7204 } else { 7205 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7206 if (rc != MBX_SUCCESS) { 7207 if (rc != MBX_TIMEOUT) 7208 mempool_free(pmboxq, phba->mbox_mem_pool); 7209 return; 7210 } 7211 } 7212 7213 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7214 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7215 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7216 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7217 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7218 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7219 lso->error_frames = pmb->un.varRdLnk.crcCnt; 7220 if (phba->hba_flag & HBA_FCOE_MODE) 7221 lso->link_events = (phba->link_events >> 1); 7222 else 7223 lso->link_events = (phba->fc_eventTag >> 1); 7224 7225 atomic64_set(&phba->cgn_acqe_stat.warn, 0); 7226 atomic64_set(&phba->cgn_acqe_stat.alarm, 0); 7227 7228 memset(&shost_to_fc_host(shost)->fpin_stats, 0, 7229 sizeof(shost_to_fc_host(shost)->fpin_stats)); 7230 7231 psli->stats_start = ktime_get_seconds(); 7232 7233 mempool_free(pmboxq, phba->mbox_mem_pool); 7234 7235 return; 7236 } 7237 7238 /* 7239 * The LPFC driver treats linkdown handling as target loss events so there 7240 * are no sysfs handlers for link_down_tmo. 7241 */ 7242 7243 /** 7244 * lpfc_get_node_by_target - Return the nodelist for a target 7245 * @starget: kernel scsi target pointer. 7246 * 7247 * Returns: 7248 * address of the node list if found 7249 * NULL target not found 7250 **/ 7251 static struct lpfc_nodelist * 7252 lpfc_get_node_by_target(struct scsi_target *starget) 7253 { 7254 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 7255 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7256 struct lpfc_nodelist *ndlp; 7257 7258 spin_lock_irq(shost->host_lock); 7259 /* Search for this, mapped, target ID */ 7260 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 7261 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 7262 starget->id == ndlp->nlp_sid) { 7263 spin_unlock_irq(shost->host_lock); 7264 return ndlp; 7265 } 7266 } 7267 spin_unlock_irq(shost->host_lock); 7268 return NULL; 7269 } 7270 7271 /** 7272 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 7273 * @starget: kernel scsi target pointer. 7274 **/ 7275 static void 7276 lpfc_get_starget_port_id(struct scsi_target *starget) 7277 { 7278 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7279 7280 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7281 } 7282 7283 /** 7284 * lpfc_get_starget_node_name - Set the target node name 7285 * @starget: kernel scsi target pointer. 7286 * 7287 * Description: Set the target node name to the ndlp node name wwn or zero. 7288 **/ 7289 static void 7290 lpfc_get_starget_node_name(struct scsi_target *starget) 7291 { 7292 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7293 7294 fc_starget_node_name(starget) = 7295 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7296 } 7297 7298 /** 7299 * lpfc_get_starget_port_name - Set the target port name 7300 * @starget: kernel scsi target pointer. 7301 * 7302 * Description: set the target port name to the ndlp port name wwn or zero. 7303 **/ 7304 static void 7305 lpfc_get_starget_port_name(struct scsi_target *starget) 7306 { 7307 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7308 7309 fc_starget_port_name(starget) = 7310 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7311 } 7312 7313 /** 7314 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7315 * @rport: fc rport address. 7316 * @timeout: new value for dev loss tmo. 7317 * 7318 * Description: 7319 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7320 * dev_loss_tmo to one. 7321 **/ 7322 static void 7323 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7324 { 7325 struct lpfc_rport_data *rdata = rport->dd_data; 7326 struct lpfc_nodelist *ndlp = rdata->pnode; 7327 #if (IS_ENABLED(CONFIG_NVME_FC)) 7328 struct lpfc_nvme_rport *nrport = NULL; 7329 #endif 7330 7331 if (timeout) 7332 rport->dev_loss_tmo = timeout; 7333 else 7334 rport->dev_loss_tmo = 1; 7335 7336 if (!ndlp) { 7337 dev_info(&rport->dev, "Cannot find remote node to " 7338 "set rport dev loss tmo, port_id x%x\n", 7339 rport->port_id); 7340 return; 7341 } 7342 7343 #if (IS_ENABLED(CONFIG_NVME_FC)) 7344 nrport = lpfc_ndlp_get_nrport(ndlp); 7345 7346 if (nrport && nrport->remoteport) 7347 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7348 rport->dev_loss_tmo); 7349 #endif 7350 } 7351 7352 /* 7353 * lpfc_rport_show_function - Return rport target information 7354 * 7355 * Description: 7356 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7357 * 7358 * lpfc_show_rport_##field: returns the bytes formatted in buf 7359 * @cdev: class converted to an fc_rport. 7360 * @buf: on return contains the target_field or zero. 7361 * 7362 * Returns: size of formatted string. 7363 **/ 7364 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7365 static ssize_t \ 7366 lpfc_show_rport_##field (struct device *dev, \ 7367 struct device_attribute *attr, \ 7368 char *buf) \ 7369 { \ 7370 struct fc_rport *rport = transport_class_to_rport(dev); \ 7371 struct lpfc_rport_data *rdata = rport->hostdata; \ 7372 return scnprintf(buf, sz, format_string, \ 7373 (rdata->target) ? cast rdata->target->field : 0); \ 7374 } 7375 7376 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7377 lpfc_rport_show_function(field, format_string, sz, ) \ 7378 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7379 7380 /** 7381 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7382 * @fc_vport: The fc_vport who's symbolic name has been changed. 7383 * 7384 * Description: 7385 * This function is called by the transport after the @fc_vport's symbolic name 7386 * has been changed. This function re-registers the symbolic name with the 7387 * switch to propagate the change into the fabric if the vport is active. 7388 **/ 7389 static void 7390 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7391 { 7392 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7393 7394 if (vport->port_state == LPFC_VPORT_READY) 7395 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7396 } 7397 7398 /** 7399 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7400 * @phba: Pointer to lpfc_hba struct. 7401 * @verbose: Verbose level to set. 7402 * 7403 * This function is called by the lpfc_get_cfgparam() routine to set the 7404 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7405 * log message according to the module's lpfc_log_verbose parameter setting 7406 * before hba port or vport created. 7407 **/ 7408 static void 7409 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7410 { 7411 phba->cfg_log_verbose = verbose; 7412 } 7413 7414 struct fc_function_template lpfc_transport_functions = { 7415 /* fixed attributes the driver supports */ 7416 .show_host_node_name = 1, 7417 .show_host_port_name = 1, 7418 .show_host_supported_classes = 1, 7419 .show_host_supported_fc4s = 1, 7420 .show_host_supported_speeds = 1, 7421 .show_host_maxframe_size = 1, 7422 7423 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7424 .show_host_symbolic_name = 1, 7425 7426 /* dynamic attributes the driver supports */ 7427 .get_host_port_id = lpfc_get_host_port_id, 7428 .show_host_port_id = 1, 7429 7430 .get_host_port_type = lpfc_get_host_port_type, 7431 .show_host_port_type = 1, 7432 7433 .get_host_port_state = lpfc_get_host_port_state, 7434 .show_host_port_state = 1, 7435 7436 /* active_fc4s is shown but doesn't change (thus no get function) */ 7437 .show_host_active_fc4s = 1, 7438 7439 .get_host_speed = lpfc_get_host_speed, 7440 .show_host_speed = 1, 7441 7442 .get_host_fabric_name = lpfc_get_host_fabric_name, 7443 .show_host_fabric_name = 1, 7444 7445 /* 7446 * The LPFC driver treats linkdown handling as target loss events 7447 * so there are no sysfs handlers for link_down_tmo. 7448 */ 7449 7450 .get_fc_host_stats = lpfc_get_stats, 7451 .reset_fc_host_stats = lpfc_reset_stats, 7452 7453 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7454 .show_rport_maxframe_size = 1, 7455 .show_rport_supported_classes = 1, 7456 7457 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7458 .show_rport_dev_loss_tmo = 1, 7459 7460 .get_starget_port_id = lpfc_get_starget_port_id, 7461 .show_starget_port_id = 1, 7462 7463 .get_starget_node_name = lpfc_get_starget_node_name, 7464 .show_starget_node_name = 1, 7465 7466 .get_starget_port_name = lpfc_get_starget_port_name, 7467 .show_starget_port_name = 1, 7468 7469 .issue_fc_host_lip = lpfc_issue_lip, 7470 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7471 .terminate_rport_io = lpfc_terminate_rport_io, 7472 7473 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7474 7475 .vport_disable = lpfc_vport_disable, 7476 7477 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7478 7479 .bsg_request = lpfc_bsg_request, 7480 .bsg_timeout = lpfc_bsg_timeout, 7481 }; 7482 7483 struct fc_function_template lpfc_vport_transport_functions = { 7484 /* fixed attributes the driver supports */ 7485 .show_host_node_name = 1, 7486 .show_host_port_name = 1, 7487 .show_host_supported_classes = 1, 7488 .show_host_supported_fc4s = 1, 7489 .show_host_supported_speeds = 1, 7490 .show_host_maxframe_size = 1, 7491 7492 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7493 .show_host_symbolic_name = 1, 7494 7495 /* dynamic attributes the driver supports */ 7496 .get_host_port_id = lpfc_get_host_port_id, 7497 .show_host_port_id = 1, 7498 7499 .get_host_port_type = lpfc_get_host_port_type, 7500 .show_host_port_type = 1, 7501 7502 .get_host_port_state = lpfc_get_host_port_state, 7503 .show_host_port_state = 1, 7504 7505 /* active_fc4s is shown but doesn't change (thus no get function) */ 7506 .show_host_active_fc4s = 1, 7507 7508 .get_host_speed = lpfc_get_host_speed, 7509 .show_host_speed = 1, 7510 7511 .get_host_fabric_name = lpfc_get_host_fabric_name, 7512 .show_host_fabric_name = 1, 7513 7514 /* 7515 * The LPFC driver treats linkdown handling as target loss events 7516 * so there are no sysfs handlers for link_down_tmo. 7517 */ 7518 7519 .get_fc_host_stats = lpfc_get_stats, 7520 .reset_fc_host_stats = lpfc_reset_stats, 7521 7522 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7523 .show_rport_maxframe_size = 1, 7524 .show_rport_supported_classes = 1, 7525 7526 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7527 .show_rport_dev_loss_tmo = 1, 7528 7529 .get_starget_port_id = lpfc_get_starget_port_id, 7530 .show_starget_port_id = 1, 7531 7532 .get_starget_node_name = lpfc_get_starget_node_name, 7533 .show_starget_node_name = 1, 7534 7535 .get_starget_port_name = lpfc_get_starget_port_name, 7536 .show_starget_port_name = 1, 7537 7538 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7539 .terminate_rport_io = lpfc_terminate_rport_io, 7540 7541 .vport_disable = lpfc_vport_disable, 7542 7543 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7544 }; 7545 7546 /** 7547 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7548 * Mode 7549 * @phba: lpfc_hba pointer. 7550 **/ 7551 static void 7552 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7553 { 7554 /* If the adapter supports FCoE mode */ 7555 switch (phba->pcidev->device) { 7556 case PCI_DEVICE_ID_SKYHAWK: 7557 case PCI_DEVICE_ID_SKYHAWK_VF: 7558 case PCI_DEVICE_ID_LANCER_FCOE: 7559 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7560 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7561 case PCI_DEVICE_ID_HORNET: 7562 case PCI_DEVICE_ID_TIGERSHARK: 7563 case PCI_DEVICE_ID_TOMCAT: 7564 phba->hba_flag |= HBA_FCOE_MODE; 7565 break; 7566 default: 7567 /* for others, clear the flag */ 7568 phba->hba_flag &= ~HBA_FCOE_MODE; 7569 } 7570 } 7571 7572 /** 7573 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7574 * @phba: lpfc_hba pointer. 7575 **/ 7576 void 7577 lpfc_get_cfgparam(struct lpfc_hba *phba) 7578 { 7579 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7580 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7581 lpfc_ns_query_init(phba, lpfc_ns_query); 7582 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7583 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7584 lpfc_cr_count_init(phba, lpfc_cr_count); 7585 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7586 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7587 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7588 lpfc_ack0_init(phba, lpfc_ack0); 7589 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7590 lpfc_topology_init(phba, lpfc_topology); 7591 lpfc_link_speed_init(phba, lpfc_link_speed); 7592 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7593 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7594 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7595 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7596 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7597 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7598 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7599 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7600 lpfc_use_msi_init(phba, lpfc_use_msi); 7601 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7602 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7603 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7604 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7605 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7606 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7607 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7608 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7609 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7610 7611 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7612 /* VMID Inits */ 7613 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7614 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7615 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7616 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7617 if (phba->sli_rev != LPFC_SLI_REV4) 7618 phba->cfg_EnableXLane = 0; 7619 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7620 7621 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7622 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7623 phba->cfg_oas_lun_state = 0; 7624 phba->cfg_oas_lun_status = 0; 7625 phba->cfg_oas_flags = 0; 7626 phba->cfg_oas_priority = 0; 7627 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7628 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7629 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7630 if (phba->sli_rev == LPFC_SLI_REV4) 7631 phba->cfg_poll = 0; 7632 else 7633 phba->cfg_poll = lpfc_poll; 7634 7635 /* Get the function mode */ 7636 lpfc_get_hba_function_mode(phba); 7637 7638 /* BlockGuard allowed for FC only. */ 7639 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7640 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7641 "0581 BlockGuard feature not supported\n"); 7642 /* If set, clear the BlockGuard support param */ 7643 phba->cfg_enable_bg = 0; 7644 } else if (phba->cfg_enable_bg) { 7645 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7646 } 7647 7648 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7649 7650 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7651 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7652 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7653 7654 /* Initialize first burst. Target vs Initiator are different. */ 7655 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7656 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7657 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7658 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7659 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7660 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7661 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7662 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7663 7664 phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; 7665 phba->cmf_active_mode = LPFC_CFG_OFF; 7666 if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || 7667 lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) 7668 lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 7669 7670 if (phba->sli_rev != LPFC_SLI_REV4) { 7671 /* NVME only supported on SLI4 */ 7672 phba->nvmet_support = 0; 7673 phba->cfg_nvmet_mrq = 0; 7674 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7675 phba->cfg_enable_bbcr = 0; 7676 phba->cfg_xri_rebalancing = 0; 7677 } else { 7678 /* We MUST have FCP support */ 7679 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7680 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7681 } 7682 7683 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7684 7685 phba->cfg_enable_pbde = 0; 7686 7687 /* A value of 0 means use the number of CPUs found in the system */ 7688 if (phba->cfg_hdw_queue == 0) 7689 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7690 if (phba->cfg_irq_chann == 0) 7691 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7692 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7693 phba->sli_rev == LPFC_SLI_REV4) 7694 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7695 7696 phba->cfg_soft_wwnn = 0L; 7697 phba->cfg_soft_wwpn = 0L; 7698 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7699 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7700 lpfc_aer_support_init(phba, lpfc_aer_support); 7701 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7702 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7703 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7704 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7705 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7706 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7707 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7708 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7709 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7710 7711 return; 7712 } 7713 7714 /** 7715 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7716 * dependencies between protocols and roles. 7717 * @phba: lpfc_hba pointer. 7718 **/ 7719 void 7720 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7721 { 7722 int logit = 0; 7723 7724 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7725 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7726 logit = 1; 7727 } 7728 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7729 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7730 logit = 1; 7731 } 7732 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7733 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7734 logit = 1; 7735 } 7736 if (logit) 7737 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7738 "2006 Reducing Queues - CPU limitation: " 7739 "IRQ %d HDWQ %d\n", 7740 phba->cfg_irq_chann, 7741 phba->cfg_hdw_queue); 7742 7743 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7744 phba->nvmet_support) { 7745 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7746 7747 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7748 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7749 "NVME Target PRLI ACC enable_fb ", 7750 phba->cfg_nvme_enable_fb, 7751 phba->cfg_nvmet_fb_size, 7752 LPFC_NVMET_FB_SZ_MAX); 7753 7754 if (phba->cfg_nvme_enable_fb == 0) 7755 phba->cfg_nvmet_fb_size = 0; 7756 else { 7757 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7758 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7759 } 7760 7761 if (!phba->cfg_nvmet_mrq) 7762 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7763 7764 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7765 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7766 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7767 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7768 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7769 phba->cfg_nvmet_mrq); 7770 } 7771 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7772 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7773 7774 } else { 7775 /* Not NVME Target mode. Turn off Target parameters. */ 7776 phba->nvmet_support = 0; 7777 phba->cfg_nvmet_mrq = 0; 7778 phba->cfg_nvmet_fb_size = 0; 7779 } 7780 } 7781 7782 /** 7783 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7784 * @vport: lpfc_vport pointer. 7785 **/ 7786 void 7787 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7788 { 7789 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7790 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7791 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7792 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7793 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7794 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7795 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7796 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7797 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7798 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7799 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7800 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7801 lpfc_max_luns_init(vport, lpfc_max_luns); 7802 lpfc_scan_down_init(vport, lpfc_scan_down); 7803 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7804 return; 7805 } 7806