1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 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 <linux/nvme-fc-driver.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_nvmet.h" 52 #include "lpfc_logmsg.h" 53 #include "lpfc_version.h" 54 #include "lpfc_compat.h" 55 #include "lpfc_crtn.h" 56 #include "lpfc_vport.h" 57 #include "lpfc_attr.h" 58 59 #define LPFC_DEF_DEVLOSS_TMO 30 60 #define LPFC_MIN_DEVLOSS_TMO 1 61 #define LPFC_MAX_DEVLOSS_TMO 255 62 63 #define LPFC_DEF_MRQ_POST 512 64 #define LPFC_MIN_MRQ_POST 512 65 #define LPFC_MAX_MRQ_POST 2048 66 67 #define LPFC_MAX_NVME_INFO_TMP_LEN 100 68 #define LPFC_NVME_INFO_MORE_STR "\nCould be more info...\n" 69 70 /* 71 * Write key size should be multiple of 4. If write key is changed 72 * make sure that library write key is also changed. 73 */ 74 #define LPFC_REG_WRITE_KEY_SIZE 4 75 #define LPFC_REG_WRITE_KEY "EMLX" 76 77 /** 78 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 79 * @incr: integer to convert. 80 * @hdw: ascii string holding converted integer plus a string terminator. 81 * 82 * Description: 83 * JEDEC Joint Electron Device Engineering Council. 84 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 85 * character string. The string is then terminated with a NULL in byte 9. 86 * Hex 0-9 becomes ascii '0' to '9'. 87 * Hex a-f becomes ascii '=' to 'B' capital B. 88 * 89 * Notes: 90 * Coded for 32 bit integers only. 91 **/ 92 static void 93 lpfc_jedec_to_ascii(int incr, char hdw[]) 94 { 95 int i, j; 96 for (i = 0; i < 8; i++) { 97 j = (incr & 0xf); 98 if (j <= 9) 99 hdw[7 - i] = 0x30 + j; 100 else 101 hdw[7 - i] = 0x61 + j - 10; 102 incr = (incr >> 4); 103 } 104 hdw[8] = 0; 105 return; 106 } 107 108 /** 109 * lpfc_drvr_version_show - Return the Emulex driver string with version number 110 * @dev: class unused variable. 111 * @attr: device attribute, not used. 112 * @buf: on return contains the module description text. 113 * 114 * Returns: size of formatted string. 115 **/ 116 static ssize_t 117 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 118 char *buf) 119 { 120 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 121 } 122 123 /** 124 * lpfc_enable_fip_show - Return the fip mode of the HBA 125 * @dev: class unused variable. 126 * @attr: device attribute, not used. 127 * @buf: on return contains the module description text. 128 * 129 * Returns: size of formatted string. 130 **/ 131 static ssize_t 132 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 133 char *buf) 134 { 135 struct Scsi_Host *shost = class_to_shost(dev); 136 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 137 struct lpfc_hba *phba = vport->phba; 138 139 if (phba->hba_flag & HBA_FIP_SUPPORT) 140 return snprintf(buf, PAGE_SIZE, "1\n"); 141 else 142 return snprintf(buf, PAGE_SIZE, "0\n"); 143 } 144 145 static ssize_t 146 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 147 char *buf) 148 { 149 struct Scsi_Host *shost = class_to_shost(dev); 150 struct lpfc_vport *vport = shost_priv(shost); 151 struct lpfc_hba *phba = vport->phba; 152 struct lpfc_nvmet_tgtport *tgtp; 153 struct nvme_fc_local_port *localport; 154 struct lpfc_nvme_lport *lport; 155 struct lpfc_nvme_rport *rport; 156 struct lpfc_nodelist *ndlp; 157 struct nvme_fc_remote_port *nrport; 158 struct lpfc_nvme_ctrl_stat *cstat; 159 uint64_t data1, data2, data3; 160 uint64_t totin, totout, tot; 161 char *statep; 162 int i; 163 int len = 0; 164 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 165 166 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 167 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 168 return len; 169 } 170 if (phba->nvmet_support) { 171 if (!phba->targetport) { 172 len = scnprintf(buf, PAGE_SIZE, 173 "NVME Target: x%llx is not allocated\n", 174 wwn_to_u64(vport->fc_portname.u.wwn)); 175 return len; 176 } 177 /* Port state is only one of two values for now. */ 178 if (phba->targetport->port_id) 179 statep = "REGISTERED"; 180 else 181 statep = "INIT"; 182 scnprintf(tmp, sizeof(tmp), 183 "NVME Target Enabled State %s\n", 184 statep); 185 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 186 goto buffer_done; 187 188 scnprintf(tmp, sizeof(tmp), 189 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 190 "NVME Target: lpfc", 191 phba->brd_no, 192 wwn_to_u64(vport->fc_portname.u.wwn), 193 wwn_to_u64(vport->fc_nodename.u.wwn), 194 phba->targetport->port_id); 195 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 196 goto buffer_done; 197 198 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 199 >= PAGE_SIZE) 200 goto buffer_done; 201 202 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 203 scnprintf(tmp, sizeof(tmp), 204 "LS: Rcv %08x Drop %08x Abort %08x\n", 205 atomic_read(&tgtp->rcv_ls_req_in), 206 atomic_read(&tgtp->rcv_ls_req_drop), 207 atomic_read(&tgtp->xmt_ls_abort)); 208 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 209 goto buffer_done; 210 211 if (atomic_read(&tgtp->rcv_ls_req_in) != 212 atomic_read(&tgtp->rcv_ls_req_out)) { 213 scnprintf(tmp, sizeof(tmp), 214 "Rcv LS: in %08x != out %08x\n", 215 atomic_read(&tgtp->rcv_ls_req_in), 216 atomic_read(&tgtp->rcv_ls_req_out)); 217 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 218 goto buffer_done; 219 } 220 221 scnprintf(tmp, sizeof(tmp), 222 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 223 atomic_read(&tgtp->xmt_ls_rsp), 224 atomic_read(&tgtp->xmt_ls_drop), 225 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 226 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 227 goto buffer_done; 228 229 scnprintf(tmp, sizeof(tmp), 230 "LS: RSP Abort %08x xb %08x Err %08x\n", 231 atomic_read(&tgtp->xmt_ls_rsp_aborted), 232 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 233 atomic_read(&tgtp->xmt_ls_rsp_error)); 234 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 235 goto buffer_done; 236 237 scnprintf(tmp, sizeof(tmp), 238 "FCP: Rcv %08x Defer %08x Release %08x " 239 "Drop %08x\n", 240 atomic_read(&tgtp->rcv_fcp_cmd_in), 241 atomic_read(&tgtp->rcv_fcp_cmd_defer), 242 atomic_read(&tgtp->xmt_fcp_release), 243 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 244 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 245 goto buffer_done; 246 247 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 248 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 249 scnprintf(tmp, sizeof(tmp), 250 "Rcv FCP: in %08x != out %08x\n", 251 atomic_read(&tgtp->rcv_fcp_cmd_in), 252 atomic_read(&tgtp->rcv_fcp_cmd_out)); 253 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 254 goto buffer_done; 255 } 256 257 scnprintf(tmp, sizeof(tmp), 258 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 259 "drop %08x\n", 260 atomic_read(&tgtp->xmt_fcp_read), 261 atomic_read(&tgtp->xmt_fcp_read_rsp), 262 atomic_read(&tgtp->xmt_fcp_write), 263 atomic_read(&tgtp->xmt_fcp_rsp), 264 atomic_read(&tgtp->xmt_fcp_drop)); 265 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 266 goto buffer_done; 267 268 scnprintf(tmp, sizeof(tmp), 269 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 270 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 271 atomic_read(&tgtp->xmt_fcp_rsp_error), 272 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 273 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 274 goto buffer_done; 275 276 scnprintf(tmp, sizeof(tmp), 277 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 278 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 279 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 280 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 281 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 282 goto buffer_done; 283 284 scnprintf(tmp, sizeof(tmp), 285 "ABORT: Xmt %08x Cmpl %08x\n", 286 atomic_read(&tgtp->xmt_fcp_abort), 287 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 288 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 289 goto buffer_done; 290 291 scnprintf(tmp, sizeof(tmp), 292 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 293 atomic_read(&tgtp->xmt_abort_sol), 294 atomic_read(&tgtp->xmt_abort_unsol), 295 atomic_read(&tgtp->xmt_abort_rsp), 296 atomic_read(&tgtp->xmt_abort_rsp_error)); 297 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 298 goto buffer_done; 299 300 scnprintf(tmp, sizeof(tmp), 301 "DELAY: ctx %08x fod %08x wqfull %08x\n", 302 atomic_read(&tgtp->defer_ctx), 303 atomic_read(&tgtp->defer_fod), 304 atomic_read(&tgtp->defer_wqfull)); 305 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 306 goto buffer_done; 307 308 /* Calculate outstanding IOs */ 309 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 310 tot += atomic_read(&tgtp->xmt_fcp_release); 311 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 312 313 scnprintf(tmp, sizeof(tmp), 314 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 315 "CTX Outstanding %08llx\n\n", 316 phba->sli4_hba.nvmet_xri_cnt, 317 phba->sli4_hba.nvmet_io_wait_cnt, 318 phba->sli4_hba.nvmet_io_wait_total, 319 tot); 320 strlcat(buf, tmp, PAGE_SIZE); 321 goto buffer_done; 322 } 323 324 localport = vport->localport; 325 if (!localport) { 326 len = scnprintf(buf, PAGE_SIZE, 327 "NVME Initiator x%llx is not allocated\n", 328 wwn_to_u64(vport->fc_portname.u.wwn)); 329 return len; 330 } 331 lport = (struct lpfc_nvme_lport *)localport->private; 332 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 333 goto buffer_done; 334 335 rcu_read_lock(); 336 scnprintf(tmp, sizeof(tmp), 337 "XRI Dist lpfc%d Total %d NVME %d SCSI %d ELS %d\n", 338 phba->brd_no, 339 phba->sli4_hba.max_cfg_param.max_xri, 340 phba->sli4_hba.nvme_xri_max, 341 phba->sli4_hba.scsi_xri_max, 342 lpfc_sli4_get_els_iocb_cnt(phba)); 343 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 344 goto buffer_done; 345 346 /* Port state is only one of two values for now. */ 347 if (localport->port_id) 348 statep = "ONLINE"; 349 else 350 statep = "UNKNOWN "; 351 352 scnprintf(tmp, sizeof(tmp), 353 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 354 "NVME LPORT lpfc", 355 phba->brd_no, 356 wwn_to_u64(vport->fc_portname.u.wwn), 357 wwn_to_u64(vport->fc_nodename.u.wwn), 358 localport->port_id, statep); 359 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 360 goto buffer_done; 361 362 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 363 nrport = NULL; 364 spin_lock(&vport->phba->hbalock); 365 rport = lpfc_ndlp_get_nrport(ndlp); 366 if (rport) 367 nrport = rport->remoteport; 368 spin_unlock(&vport->phba->hbalock); 369 if (!nrport) 370 continue; 371 372 /* Port state is only one of two values for now. */ 373 switch (nrport->port_state) { 374 case FC_OBJSTATE_ONLINE: 375 statep = "ONLINE"; 376 break; 377 case FC_OBJSTATE_UNKNOWN: 378 statep = "UNKNOWN "; 379 break; 380 default: 381 statep = "UNSUPPORTED"; 382 break; 383 } 384 385 /* Tab in to show lport ownership. */ 386 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 387 goto buffer_done; 388 if (phba->brd_no >= 10) { 389 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 390 goto buffer_done; 391 } 392 393 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 394 nrport->port_name); 395 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 396 goto buffer_done; 397 398 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 399 nrport->node_name); 400 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 401 goto buffer_done; 402 403 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 404 nrport->port_id); 405 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 406 goto buffer_done; 407 408 /* An NVME rport can have multiple roles. */ 409 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 410 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 411 goto buffer_done; 412 } 413 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 414 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 415 goto buffer_done; 416 } 417 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 418 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 419 goto buffer_done; 420 } 421 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 422 FC_PORT_ROLE_NVME_TARGET | 423 FC_PORT_ROLE_NVME_DISCOVERY)) { 424 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 425 nrport->port_role); 426 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 427 goto buffer_done; 428 } 429 430 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 431 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 432 goto buffer_done; 433 } 434 rcu_read_unlock(); 435 436 if (!lport) 437 goto buffer_done; 438 439 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 440 goto buffer_done; 441 442 scnprintf(tmp, sizeof(tmp), 443 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 444 atomic_read(&lport->fc4NvmeLsRequests), 445 atomic_read(&lport->fc4NvmeLsCmpls), 446 atomic_read(&lport->xmt_ls_abort)); 447 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 448 goto buffer_done; 449 450 scnprintf(tmp, sizeof(tmp), 451 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 452 atomic_read(&lport->xmt_ls_err), 453 atomic_read(&lport->cmpl_ls_xb), 454 atomic_read(&lport->cmpl_ls_err)); 455 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 456 goto buffer_done; 457 458 totin = 0; 459 totout = 0; 460 for (i = 0; i < phba->cfg_nvme_io_channel; i++) { 461 cstat = &lport->cstat[i]; 462 tot = atomic_read(&cstat->fc4NvmeIoCmpls); 463 totin += tot; 464 data1 = atomic_read(&cstat->fc4NvmeInputRequests); 465 data2 = atomic_read(&cstat->fc4NvmeOutputRequests); 466 data3 = atomic_read(&cstat->fc4NvmeControlRequests); 467 totout += (data1 + data2 + data3); 468 } 469 scnprintf(tmp, sizeof(tmp), 470 "Total FCP Cmpl %016llx Issue %016llx " 471 "OutIO %016llx\n", 472 totin, totout, totout - totin); 473 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 474 goto buffer_done; 475 476 scnprintf(tmp, sizeof(tmp), 477 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 478 "wqerr %08x err %08x\n", 479 atomic_read(&lport->xmt_fcp_abort), 480 atomic_read(&lport->xmt_fcp_noxri), 481 atomic_read(&lport->xmt_fcp_bad_ndlp), 482 atomic_read(&lport->xmt_fcp_qdepth), 483 atomic_read(&lport->xmt_fcp_err), 484 atomic_read(&lport->xmt_fcp_wqerr)); 485 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 486 goto buffer_done; 487 488 scnprintf(tmp, sizeof(tmp), 489 "FCP CMPL: xb %08x Err %08x\n", 490 atomic_read(&lport->cmpl_fcp_xb), 491 atomic_read(&lport->cmpl_fcp_err)); 492 strlcat(buf, tmp, PAGE_SIZE); 493 494 buffer_done: 495 len = strnlen(buf, PAGE_SIZE); 496 497 if (unlikely(len >= (PAGE_SIZE - 1))) { 498 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 499 "6314 Catching potential buffer " 500 "overflow > PAGE_SIZE = %lu bytes\n", 501 PAGE_SIZE); 502 strlcpy(buf + PAGE_SIZE - 1 - 503 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1), 504 LPFC_NVME_INFO_MORE_STR, 505 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) 506 + 1); 507 } 508 509 return len; 510 } 511 512 static ssize_t 513 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 514 char *buf) 515 { 516 struct Scsi_Host *shost = class_to_shost(dev); 517 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 518 struct lpfc_hba *phba = vport->phba; 519 520 if (phba->cfg_enable_bg) 521 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 522 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); 523 else 524 return snprintf(buf, PAGE_SIZE, 525 "BlockGuard Not Supported\n"); 526 else 527 return snprintf(buf, PAGE_SIZE, 528 "BlockGuard Disabled\n"); 529 } 530 531 static ssize_t 532 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 533 char *buf) 534 { 535 struct Scsi_Host *shost = class_to_shost(dev); 536 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 537 struct lpfc_hba *phba = vport->phba; 538 539 return snprintf(buf, PAGE_SIZE, "%llu\n", 540 (unsigned long long)phba->bg_guard_err_cnt); 541 } 542 543 static ssize_t 544 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 545 char *buf) 546 { 547 struct Scsi_Host *shost = class_to_shost(dev); 548 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 549 struct lpfc_hba *phba = vport->phba; 550 551 return snprintf(buf, PAGE_SIZE, "%llu\n", 552 (unsigned long long)phba->bg_apptag_err_cnt); 553 } 554 555 static ssize_t 556 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 557 char *buf) 558 { 559 struct Scsi_Host *shost = class_to_shost(dev); 560 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 561 struct lpfc_hba *phba = vport->phba; 562 563 return snprintf(buf, PAGE_SIZE, "%llu\n", 564 (unsigned long long)phba->bg_reftag_err_cnt); 565 } 566 567 /** 568 * lpfc_info_show - Return some pci info about the host in ascii 569 * @dev: class converted to a Scsi_host structure. 570 * @attr: device attribute, not used. 571 * @buf: on return contains the formatted text from lpfc_info(). 572 * 573 * Returns: size of formatted string. 574 **/ 575 static ssize_t 576 lpfc_info_show(struct device *dev, struct device_attribute *attr, 577 char *buf) 578 { 579 struct Scsi_Host *host = class_to_shost(dev); 580 581 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); 582 } 583 584 /** 585 * lpfc_serialnum_show - Return the hba serial number in ascii 586 * @dev: class converted to a Scsi_host structure. 587 * @attr: device attribute, not used. 588 * @buf: on return contains the formatted text serial number. 589 * 590 * Returns: size of formatted string. 591 **/ 592 static ssize_t 593 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 594 char *buf) 595 { 596 struct Scsi_Host *shost = class_to_shost(dev); 597 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 598 struct lpfc_hba *phba = vport->phba; 599 600 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); 601 } 602 603 /** 604 * lpfc_temp_sensor_show - Return the temperature sensor level 605 * @dev: class converted to a Scsi_host structure. 606 * @attr: device attribute, not used. 607 * @buf: on return contains the formatted support level. 608 * 609 * Description: 610 * Returns a number indicating the temperature sensor level currently 611 * supported, zero or one in ascii. 612 * 613 * Returns: size of formatted string. 614 **/ 615 static ssize_t 616 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 617 char *buf) 618 { 619 struct Scsi_Host *shost = class_to_shost(dev); 620 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 621 struct lpfc_hba *phba = vport->phba; 622 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); 623 } 624 625 /** 626 * lpfc_modeldesc_show - Return the model description of the hba 627 * @dev: class converted to a Scsi_host structure. 628 * @attr: device attribute, not used. 629 * @buf: on return contains the scsi vpd model description. 630 * 631 * Returns: size of formatted string. 632 **/ 633 static ssize_t 634 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 635 char *buf) 636 { 637 struct Scsi_Host *shost = class_to_shost(dev); 638 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 639 struct lpfc_hba *phba = vport->phba; 640 641 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); 642 } 643 644 /** 645 * lpfc_modelname_show - Return the model name of the hba 646 * @dev: class converted to a Scsi_host structure. 647 * @attr: device attribute, not used. 648 * @buf: on return contains the scsi vpd model name. 649 * 650 * Returns: size of formatted string. 651 **/ 652 static ssize_t 653 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 654 char *buf) 655 { 656 struct Scsi_Host *shost = class_to_shost(dev); 657 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 658 struct lpfc_hba *phba = vport->phba; 659 660 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); 661 } 662 663 /** 664 * lpfc_programtype_show - Return the program type of the hba 665 * @dev: class converted to a Scsi_host structure. 666 * @attr: device attribute, not used. 667 * @buf: on return contains the scsi vpd program type. 668 * 669 * Returns: size of formatted string. 670 **/ 671 static ssize_t 672 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 673 char *buf) 674 { 675 struct Scsi_Host *shost = class_to_shost(dev); 676 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 677 struct lpfc_hba *phba = vport->phba; 678 679 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); 680 } 681 682 /** 683 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 684 * @dev: class converted to a Scsi_host structure. 685 * @attr: device attribute, not used. 686 * @buf: on return contains the Menlo Maintenance sli flag. 687 * 688 * Returns: size of formatted string. 689 **/ 690 static ssize_t 691 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 692 { 693 struct Scsi_Host *shost = class_to_shost(dev); 694 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 695 struct lpfc_hba *phba = vport->phba; 696 697 return snprintf(buf, PAGE_SIZE, "%d\n", 698 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 699 } 700 701 /** 702 * lpfc_vportnum_show - Return the port number in ascii of the hba 703 * @dev: class converted to a Scsi_host structure. 704 * @attr: device attribute, not used. 705 * @buf: on return contains scsi vpd program type. 706 * 707 * Returns: size of formatted string. 708 **/ 709 static ssize_t 710 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 711 char *buf) 712 { 713 struct Scsi_Host *shost = class_to_shost(dev); 714 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 715 struct lpfc_hba *phba = vport->phba; 716 717 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); 718 } 719 720 /** 721 * lpfc_fwrev_show - Return the firmware rev running in the hba 722 * @dev: class converted to a Scsi_host structure. 723 * @attr: device attribute, not used. 724 * @buf: on return contains the scsi vpd program type. 725 * 726 * Returns: size of formatted string. 727 **/ 728 static ssize_t 729 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 730 char *buf) 731 { 732 struct Scsi_Host *shost = class_to_shost(dev); 733 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 734 struct lpfc_hba *phba = vport->phba; 735 uint32_t if_type; 736 uint8_t sli_family; 737 char fwrev[FW_REV_STR_SIZE]; 738 int len; 739 740 lpfc_decode_firmware_rev(phba, fwrev, 1); 741 if_type = phba->sli4_hba.pc_sli4_params.if_type; 742 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 743 744 if (phba->sli_rev < LPFC_SLI_REV4) 745 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 746 fwrev, phba->sli_rev); 747 else 748 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 749 fwrev, phba->sli_rev, if_type, sli_family); 750 751 return len; 752 } 753 754 /** 755 * lpfc_hdw_show - Return the jedec information about the hba 756 * @dev: class converted to a Scsi_host structure. 757 * @attr: device attribute, not used. 758 * @buf: on return contains the scsi vpd program type. 759 * 760 * Returns: size of formatted string. 761 **/ 762 static ssize_t 763 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 764 { 765 char hdw[9]; 766 struct Scsi_Host *shost = class_to_shost(dev); 767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 768 struct lpfc_hba *phba = vport->phba; 769 lpfc_vpd_t *vp = &phba->vpd; 770 771 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 772 return snprintf(buf, PAGE_SIZE, "%s\n", hdw); 773 } 774 775 /** 776 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 777 * @dev: class converted to a Scsi_host structure. 778 * @attr: device attribute, not used. 779 * @buf: on return contains the ROM and FCode ascii strings. 780 * 781 * Returns: size of formatted string. 782 **/ 783 static ssize_t 784 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 785 char *buf) 786 { 787 struct Scsi_Host *shost = class_to_shost(dev); 788 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 789 struct lpfc_hba *phba = vport->phba; 790 char fwrev[FW_REV_STR_SIZE]; 791 792 if (phba->sli_rev < LPFC_SLI_REV4) 793 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); 794 795 lpfc_decode_firmware_rev(phba, fwrev, 1); 796 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev); 797 } 798 799 /** 800 * lpfc_state_show - Return the link state of the port 801 * @dev: class converted to a Scsi_host structure. 802 * @attr: device attribute, not used. 803 * @buf: on return contains text describing the state of the link. 804 * 805 * Notes: 806 * The switch statement has no default so zero will be returned. 807 * 808 * Returns: size of formatted string. 809 **/ 810 static ssize_t 811 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 812 char *buf) 813 { 814 struct Scsi_Host *shost = class_to_shost(dev); 815 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 816 struct lpfc_hba *phba = vport->phba; 817 int len = 0; 818 819 switch (phba->link_state) { 820 case LPFC_LINK_UNKNOWN: 821 case LPFC_WARM_START: 822 case LPFC_INIT_START: 823 case LPFC_INIT_MBX_CMDS: 824 case LPFC_LINK_DOWN: 825 case LPFC_HBA_ERROR: 826 if (phba->hba_flag & LINK_DISABLED) 827 len += snprintf(buf + len, PAGE_SIZE-len, 828 "Link Down - User disabled\n"); 829 else 830 len += snprintf(buf + len, PAGE_SIZE-len, 831 "Link Down\n"); 832 break; 833 case LPFC_LINK_UP: 834 case LPFC_CLEAR_LA: 835 case LPFC_HBA_READY: 836 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 837 838 switch (vport->port_state) { 839 case LPFC_LOCAL_CFG_LINK: 840 len += snprintf(buf + len, PAGE_SIZE-len, 841 "Configuring Link\n"); 842 break; 843 case LPFC_FDISC: 844 case LPFC_FLOGI: 845 case LPFC_FABRIC_CFG_LINK: 846 case LPFC_NS_REG: 847 case LPFC_NS_QRY: 848 case LPFC_BUILD_DISC_LIST: 849 case LPFC_DISC_AUTH: 850 len += snprintf(buf + len, PAGE_SIZE - len, 851 "Discovery\n"); 852 break; 853 case LPFC_VPORT_READY: 854 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n"); 855 break; 856 857 case LPFC_VPORT_FAILED: 858 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n"); 859 break; 860 861 case LPFC_VPORT_UNKNOWN: 862 len += snprintf(buf + len, PAGE_SIZE - len, 863 "Unknown\n"); 864 break; 865 } 866 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 867 len += snprintf(buf + len, PAGE_SIZE-len, 868 " Menlo Maint Mode\n"); 869 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 870 if (vport->fc_flag & FC_PUBLIC_LOOP) 871 len += snprintf(buf + len, PAGE_SIZE-len, 872 " Public Loop\n"); 873 else 874 len += snprintf(buf + len, PAGE_SIZE-len, 875 " Private Loop\n"); 876 } else { 877 if (vport->fc_flag & FC_FABRIC) 878 len += snprintf(buf + len, PAGE_SIZE-len, 879 " Fabric\n"); 880 else 881 len += snprintf(buf + len, PAGE_SIZE-len, 882 " Point-2-Point\n"); 883 } 884 } 885 886 if ((phba->sli_rev == LPFC_SLI_REV4) && 887 ((bf_get(lpfc_sli_intf_if_type, 888 &phba->sli4_hba.sli_intf) == 889 LPFC_SLI_INTF_IF_TYPE_6))) { 890 struct lpfc_trunk_link link = phba->trunk_link; 891 892 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 893 len += snprintf(buf + len, PAGE_SIZE - len, 894 "Trunk port 0: Link %s %s\n", 895 (link.link0.state == LPFC_LINK_UP) ? 896 "Up" : "Down. ", 897 trunk_errmsg[link.link0.fault]); 898 899 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 900 len += snprintf(buf + len, PAGE_SIZE - len, 901 "Trunk port 1: Link %s %s\n", 902 (link.link1.state == LPFC_LINK_UP) ? 903 "Up" : "Down. ", 904 trunk_errmsg[link.link1.fault]); 905 906 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 907 len += snprintf(buf + len, PAGE_SIZE - len, 908 "Trunk port 2: Link %s %s\n", 909 (link.link2.state == LPFC_LINK_UP) ? 910 "Up" : "Down. ", 911 trunk_errmsg[link.link2.fault]); 912 913 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 914 len += snprintf(buf + len, PAGE_SIZE - len, 915 "Trunk port 3: Link %s %s\n", 916 (link.link3.state == LPFC_LINK_UP) ? 917 "Up" : "Down. ", 918 trunk_errmsg[link.link3.fault]); 919 920 } 921 922 return len; 923 } 924 925 /** 926 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 927 * @dev: class unused variable. 928 * @attr: device attribute, not used. 929 * @buf: on return contains the module description text. 930 * 931 * Returns: size of formatted string. 932 **/ 933 static ssize_t 934 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 935 char *buf) 936 { 937 struct Scsi_Host *shost = class_to_shost(dev); 938 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 939 struct lpfc_hba *phba = vport->phba; 940 941 if (phba->sli_rev < LPFC_SLI_REV4) 942 return snprintf(buf, PAGE_SIZE, "fc\n"); 943 944 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 945 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 946 return snprintf(buf, PAGE_SIZE, "fcoe\n"); 947 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 948 return snprintf(buf, PAGE_SIZE, "fc\n"); 949 } 950 return snprintf(buf, PAGE_SIZE, "unknown\n"); 951 } 952 953 /** 954 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 955 * (OAS) is supported. 956 * @dev: class unused variable. 957 * @attr: device attribute, not used. 958 * @buf: on return contains the module description text. 959 * 960 * Returns: size of formatted string. 961 **/ 962 static ssize_t 963 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 964 char *buf) 965 { 966 struct Scsi_Host *shost = class_to_shost(dev); 967 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 968 struct lpfc_hba *phba = vport->phba; 969 970 return snprintf(buf, PAGE_SIZE, "%d\n", 971 phba->sli4_hba.pc_sli4_params.oas_supported); 972 } 973 974 /** 975 * lpfc_link_state_store - Transition the link_state on an HBA port 976 * @dev: class device that is converted into a Scsi_host. 977 * @attr: device attribute, not used. 978 * @buf: one or more lpfc_polling_flags values. 979 * @count: not used. 980 * 981 * Returns: 982 * -EINVAL if the buffer is not "up" or "down" 983 * return from link state change function if non-zero 984 * length of the buf on success 985 **/ 986 static ssize_t 987 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 988 const char *buf, size_t count) 989 { 990 struct Scsi_Host *shost = class_to_shost(dev); 991 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 992 struct lpfc_hba *phba = vport->phba; 993 994 int status = -EINVAL; 995 996 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 997 (phba->link_state == LPFC_LINK_DOWN)) 998 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 999 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1000 (phba->link_state >= LPFC_LINK_UP)) 1001 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1002 1003 if (status == 0) 1004 return strlen(buf); 1005 else 1006 return status; 1007 } 1008 1009 /** 1010 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1011 * @dev: class device that is converted into a Scsi_host. 1012 * @attr: device attribute, not used. 1013 * @buf: on return contains the sum of fc mapped and unmapped. 1014 * 1015 * Description: 1016 * Returns the ascii text number of the sum of the fc mapped and unmapped 1017 * vport counts. 1018 * 1019 * Returns: size of formatted string. 1020 **/ 1021 static ssize_t 1022 lpfc_num_discovered_ports_show(struct device *dev, 1023 struct device_attribute *attr, char *buf) 1024 { 1025 struct Scsi_Host *shost = class_to_shost(dev); 1026 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1027 1028 return snprintf(buf, PAGE_SIZE, "%d\n", 1029 vport->fc_map_cnt + vport->fc_unmap_cnt); 1030 } 1031 1032 /** 1033 * lpfc_issue_lip - Misnomer, name carried over from long ago 1034 * @shost: Scsi_Host pointer. 1035 * 1036 * Description: 1037 * Bring the link down gracefully then re-init the link. The firmware will 1038 * re-init the fiber channel interface as required. Does not issue a LIP. 1039 * 1040 * Returns: 1041 * -EPERM port offline or management commands are being blocked 1042 * -ENOMEM cannot allocate memory for the mailbox command 1043 * -EIO error sending the mailbox command 1044 * zero for success 1045 **/ 1046 static int 1047 lpfc_issue_lip(struct Scsi_Host *shost) 1048 { 1049 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1050 struct lpfc_hba *phba = vport->phba; 1051 LPFC_MBOXQ_t *pmboxq; 1052 int mbxstatus = MBXERR_ERROR; 1053 1054 /* 1055 * If the link is offline, disabled or BLOCK_MGMT_IO 1056 * it doesn't make any sense to allow issue_lip 1057 */ 1058 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1059 (phba->hba_flag & LINK_DISABLED) || 1060 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1061 return -EPERM; 1062 1063 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1064 1065 if (!pmboxq) 1066 return -ENOMEM; 1067 1068 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1069 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1070 pmboxq->u.mb.mbxOwner = OWN_HOST; 1071 1072 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1073 1074 if ((mbxstatus == MBX_SUCCESS) && 1075 (pmboxq->u.mb.mbxStatus == 0 || 1076 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1077 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1078 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1079 phba->cfg_link_speed); 1080 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1081 phba->fc_ratov * 2); 1082 if ((mbxstatus == MBX_SUCCESS) && 1083 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1084 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1085 "2859 SLI authentication is required " 1086 "for INIT_LINK but has not done yet\n"); 1087 } 1088 1089 lpfc_set_loopback_flag(phba); 1090 if (mbxstatus != MBX_TIMEOUT) 1091 mempool_free(pmboxq, phba->mbox_mem_pool); 1092 1093 if (mbxstatus == MBXERR_ERROR) 1094 return -EIO; 1095 1096 return 0; 1097 } 1098 1099 int 1100 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1101 { 1102 int cnt = 0; 1103 1104 spin_lock_irq(lock); 1105 while (!list_empty(q)) { 1106 spin_unlock_irq(lock); 1107 msleep(20); 1108 if (cnt++ > 250) { /* 5 secs */ 1109 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1110 "0466 %s %s\n", 1111 "Outstanding IO when ", 1112 "bringing Adapter offline\n"); 1113 return 0; 1114 } 1115 spin_lock_irq(lock); 1116 } 1117 spin_unlock_irq(lock); 1118 return 1; 1119 } 1120 1121 /** 1122 * lpfc_do_offline - Issues a mailbox command to bring the link down 1123 * @phba: lpfc_hba pointer. 1124 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1125 * 1126 * Notes: 1127 * Assumes any error from lpfc_do_offline() will be negative. 1128 * Can wait up to 5 seconds for the port ring buffers count 1129 * to reach zero, prints a warning if it is not zero and continues. 1130 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1131 * 1132 * Returns: 1133 * -EIO error posting the event 1134 * zero for success 1135 **/ 1136 static int 1137 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1138 { 1139 struct completion online_compl; 1140 struct lpfc_queue *qp = NULL; 1141 struct lpfc_sli_ring *pring; 1142 struct lpfc_sli *psli; 1143 int status = 0; 1144 int i; 1145 int rc; 1146 1147 init_completion(&online_compl); 1148 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1149 LPFC_EVT_OFFLINE_PREP); 1150 if (rc == 0) 1151 return -ENOMEM; 1152 1153 wait_for_completion(&online_compl); 1154 1155 if (status != 0) 1156 return -EIO; 1157 1158 psli = &phba->sli; 1159 1160 /* Wait a little for things to settle down, but not 1161 * long enough for dev loss timeout to expire. 1162 */ 1163 if (phba->sli_rev != LPFC_SLI_REV4) { 1164 for (i = 0; i < psli->num_rings; i++) { 1165 pring = &psli->sli3_ring[i]; 1166 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1167 &phba->hbalock)) 1168 goto out; 1169 } 1170 } else { 1171 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1172 pring = qp->pring; 1173 if (!pring) 1174 continue; 1175 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1176 &pring->ring_lock)) 1177 goto out; 1178 } 1179 } 1180 out: 1181 init_completion(&online_compl); 1182 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1183 if (rc == 0) 1184 return -ENOMEM; 1185 1186 wait_for_completion(&online_compl); 1187 1188 if (status != 0) 1189 return -EIO; 1190 1191 return 0; 1192 } 1193 1194 /** 1195 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1196 * @phba: lpfc_hba pointer. 1197 * 1198 * Description: 1199 * Issues a PCI secondary bus reset for the phba->pcidev. 1200 * 1201 * Notes: 1202 * First walks the bus_list to ensure only PCI devices with Emulex 1203 * vendor id, device ids that support hot reset, only one occurrence 1204 * of function 0, and all ports on the bus are in offline mode to ensure the 1205 * hot reset only affects one valid HBA. 1206 * 1207 * Returns: 1208 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1209 * -ENODEV, NULL ptr to pcidev 1210 * -EBADSLT, detected invalid device 1211 * -EBUSY, port is not in offline state 1212 * 0, successful 1213 */ 1214 int 1215 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1216 { 1217 struct pci_dev *pdev = phba->pcidev; 1218 struct Scsi_Host *shost = NULL; 1219 struct lpfc_hba *phba_other = NULL; 1220 struct pci_dev *ptr = NULL; 1221 int res; 1222 1223 if (phba->cfg_enable_hba_reset != 2) 1224 return -ENOTSUPP; 1225 1226 if (!pdev) { 1227 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1228 return -ENODEV; 1229 } 1230 1231 res = lpfc_check_pci_resettable(phba); 1232 if (res) 1233 return res; 1234 1235 /* Walk the list of devices on the pci_dev's bus */ 1236 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1237 /* Check port is offline */ 1238 shost = pci_get_drvdata(ptr); 1239 if (shost) { 1240 phba_other = 1241 ((struct lpfc_vport *)shost->hostdata)->phba; 1242 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1243 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1244 "8349 WWPN = 0x%02x%02x%02x%02x" 1245 "%02x%02x%02x%02x is not " 1246 "offline!\n", 1247 phba_other->wwpn[0], 1248 phba_other->wwpn[1], 1249 phba_other->wwpn[2], 1250 phba_other->wwpn[3], 1251 phba_other->wwpn[4], 1252 phba_other->wwpn[5], 1253 phba_other->wwpn[6], 1254 phba_other->wwpn[7]); 1255 return -EBUSY; 1256 } 1257 } 1258 } 1259 1260 /* Issue PCI bus reset */ 1261 res = pci_reset_bus(pdev); 1262 if (res) { 1263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1264 "8350 PCI reset bus failed: %d\n", res); 1265 } 1266 1267 return res; 1268 } 1269 1270 /** 1271 * lpfc_selective_reset - Offline then onlines the port 1272 * @phba: lpfc_hba pointer. 1273 * 1274 * Description: 1275 * If the port is configured to allow a reset then the hba is brought 1276 * offline then online. 1277 * 1278 * Notes: 1279 * Assumes any error from lpfc_do_offline() will be negative. 1280 * Do not make this function static. 1281 * 1282 * Returns: 1283 * lpfc_do_offline() return code if not zero 1284 * -EIO reset not configured or error posting the event 1285 * zero for success 1286 **/ 1287 int 1288 lpfc_selective_reset(struct lpfc_hba *phba) 1289 { 1290 struct completion online_compl; 1291 int status = 0; 1292 int rc; 1293 1294 if (!phba->cfg_enable_hba_reset) 1295 return -EACCES; 1296 1297 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1298 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1299 1300 if (status != 0) 1301 return status; 1302 } 1303 1304 init_completion(&online_compl); 1305 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1306 LPFC_EVT_ONLINE); 1307 if (rc == 0) 1308 return -ENOMEM; 1309 1310 wait_for_completion(&online_compl); 1311 1312 if (status != 0) 1313 return -EIO; 1314 1315 return 0; 1316 } 1317 1318 /** 1319 * lpfc_issue_reset - Selectively resets an adapter 1320 * @dev: class device that is converted into a Scsi_host. 1321 * @attr: device attribute, not used. 1322 * @buf: containing the string "selective". 1323 * @count: unused variable. 1324 * 1325 * Description: 1326 * If the buf contains the string "selective" then lpfc_selective_reset() 1327 * is called to perform the reset. 1328 * 1329 * Notes: 1330 * Assumes any error from lpfc_selective_reset() will be negative. 1331 * If lpfc_selective_reset() returns zero then the length of the buffer 1332 * is returned which indicates success 1333 * 1334 * Returns: 1335 * -EINVAL if the buffer does not contain the string "selective" 1336 * length of buf if lpfc-selective_reset() if the call succeeds 1337 * return value of lpfc_selective_reset() if the call fails 1338 **/ 1339 static ssize_t 1340 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1341 const char *buf, size_t count) 1342 { 1343 struct Scsi_Host *shost = class_to_shost(dev); 1344 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1345 struct lpfc_hba *phba = vport->phba; 1346 int status = -EINVAL; 1347 1348 if (!phba->cfg_enable_hba_reset) 1349 return -EACCES; 1350 1351 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1352 status = phba->lpfc_selective_reset(phba); 1353 1354 if (status == 0) 1355 return strlen(buf); 1356 else 1357 return status; 1358 } 1359 1360 /** 1361 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1362 * @phba: lpfc_hba pointer. 1363 * 1364 * Description: 1365 * SLI4 interface type-2 device to wait on the sliport status register for 1366 * the readyness after performing a firmware reset. 1367 * 1368 * Returns: 1369 * zero for success, -EPERM when port does not have privilege to perform the 1370 * reset, -EIO when port timeout from recovering from the reset. 1371 * 1372 * Note: 1373 * As the caller will interpret the return code by value, be careful in making 1374 * change or addition to return codes. 1375 **/ 1376 int 1377 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1378 { 1379 struct lpfc_register portstat_reg = {0}; 1380 int i; 1381 1382 msleep(100); 1383 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1384 &portstat_reg.word0); 1385 1386 /* verify if privileged for the request operation */ 1387 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1388 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1389 return -EPERM; 1390 1391 /* wait for the SLI port firmware ready after firmware reset */ 1392 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1393 msleep(10); 1394 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1395 &portstat_reg.word0); 1396 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1397 continue; 1398 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1399 continue; 1400 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1401 continue; 1402 break; 1403 } 1404 1405 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1406 return 0; 1407 else 1408 return -EIO; 1409 } 1410 1411 /** 1412 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1413 * @phba: lpfc_hba pointer. 1414 * 1415 * Description: 1416 * Request SLI4 interface type-2 device to perform a physical register set 1417 * access. 1418 * 1419 * Returns: 1420 * zero for success 1421 **/ 1422 static ssize_t 1423 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1424 { 1425 struct completion online_compl; 1426 struct pci_dev *pdev = phba->pcidev; 1427 uint32_t before_fc_flag; 1428 uint32_t sriov_nr_virtfn; 1429 uint32_t reg_val; 1430 int status = 0, rc = 0; 1431 int job_posted = 1, sriov_err; 1432 1433 if (!phba->cfg_enable_hba_reset) 1434 return -EACCES; 1435 1436 if ((phba->sli_rev < LPFC_SLI_REV4) || 1437 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1438 LPFC_SLI_INTF_IF_TYPE_2)) 1439 return -EPERM; 1440 1441 /* Keep state if we need to restore back */ 1442 before_fc_flag = phba->pport->fc_flag; 1443 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1444 1445 /* Disable SR-IOV virtual functions if enabled */ 1446 if (phba->cfg_sriov_nr_virtfn) { 1447 pci_disable_sriov(pdev); 1448 phba->cfg_sriov_nr_virtfn = 0; 1449 } 1450 1451 if (opcode == LPFC_FW_DUMP) 1452 phba->hba_flag |= HBA_FW_DUMP_OP; 1453 1454 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1455 1456 if (status != 0) { 1457 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1458 return status; 1459 } 1460 1461 /* wait for the device to be quiesced before firmware reset */ 1462 msleep(100); 1463 1464 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1465 LPFC_CTL_PDEV_CTL_OFFSET); 1466 1467 if (opcode == LPFC_FW_DUMP) 1468 reg_val |= LPFC_FW_DUMP_REQUEST; 1469 else if (opcode == LPFC_FW_RESET) 1470 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1471 else if (opcode == LPFC_DV_RESET) 1472 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1473 1474 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1475 LPFC_CTL_PDEV_CTL_OFFSET); 1476 /* flush */ 1477 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1478 1479 /* delay driver action following IF_TYPE_2 reset */ 1480 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1481 1482 if (rc == -EPERM) { 1483 /* no privilege for reset */ 1484 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1485 "3150 No privilege to perform the requested " 1486 "access: x%x\n", reg_val); 1487 } else if (rc == -EIO) { 1488 /* reset failed, there is nothing more we can do */ 1489 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1490 "3153 Fail to perform the requested " 1491 "access: x%x\n", reg_val); 1492 return rc; 1493 } 1494 1495 /* keep the original port state */ 1496 if (before_fc_flag & FC_OFFLINE_MODE) 1497 goto out; 1498 1499 init_completion(&online_compl); 1500 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1501 LPFC_EVT_ONLINE); 1502 if (!job_posted) 1503 goto out; 1504 1505 wait_for_completion(&online_compl); 1506 1507 out: 1508 /* in any case, restore the virtual functions enabled as before */ 1509 if (sriov_nr_virtfn) { 1510 sriov_err = 1511 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1512 if (!sriov_err) 1513 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1514 } 1515 1516 /* return proper error code */ 1517 if (!rc) { 1518 if (!job_posted) 1519 rc = -ENOMEM; 1520 else if (status) 1521 rc = -EIO; 1522 } 1523 return rc; 1524 } 1525 1526 /** 1527 * lpfc_nport_evt_cnt_show - Return the number of nport events 1528 * @dev: class device that is converted into a Scsi_host. 1529 * @attr: device attribute, not used. 1530 * @buf: on return contains the ascii number of nport events. 1531 * 1532 * Returns: size of formatted string. 1533 **/ 1534 static ssize_t 1535 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1536 char *buf) 1537 { 1538 struct Scsi_Host *shost = class_to_shost(dev); 1539 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1540 struct lpfc_hba *phba = vport->phba; 1541 1542 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1543 } 1544 1545 int 1546 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1547 { 1548 LPFC_MBOXQ_t *mbox = NULL; 1549 unsigned long val = 0; 1550 char *pval = 0; 1551 int rc = 0; 1552 1553 if (!strncmp("enable", buff_out, 1554 strlen("enable"))) { 1555 pval = buff_out + strlen("enable") + 1; 1556 rc = kstrtoul(pval, 0, &val); 1557 if (rc) 1558 return rc; /* Invalid number */ 1559 } else if (!strncmp("disable", buff_out, 1560 strlen("disable"))) { 1561 val = 0; 1562 } else { 1563 return -EINVAL; /* Invalid command */ 1564 } 1565 1566 switch (val) { 1567 case 0: 1568 val = 0x0; /* Disable */ 1569 break; 1570 case 2: 1571 val = 0x1; /* Enable two port trunk */ 1572 break; 1573 case 4: 1574 val = 0x2; /* Enable four port trunk */ 1575 break; 1576 default: 1577 return -EINVAL; 1578 } 1579 1580 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1581 "0070 Set trunk mode with val %ld ", val); 1582 1583 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1584 if (!mbox) 1585 return -ENOMEM; 1586 1587 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1588 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1589 12, LPFC_SLI4_MBX_EMBED); 1590 1591 bf_set(lpfc_mbx_set_trunk_mode, 1592 &mbox->u.mqe.un.set_trunk_mode, 1593 val); 1594 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1595 if (rc) 1596 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1597 "0071 Set trunk mode failed with status: %d", 1598 rc); 1599 if (rc != MBX_TIMEOUT) 1600 mempool_free(mbox, phba->mbox_mem_pool); 1601 1602 return 0; 1603 } 1604 1605 /** 1606 * lpfc_board_mode_show - Return the state of the board 1607 * @dev: class device that is converted into a Scsi_host. 1608 * @attr: device attribute, not used. 1609 * @buf: on return contains the state of the adapter. 1610 * 1611 * Returns: size of formatted string. 1612 **/ 1613 static ssize_t 1614 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1615 char *buf) 1616 { 1617 struct Scsi_Host *shost = class_to_shost(dev); 1618 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1619 struct lpfc_hba *phba = vport->phba; 1620 char * state; 1621 1622 if (phba->link_state == LPFC_HBA_ERROR) 1623 state = "error"; 1624 else if (phba->link_state == LPFC_WARM_START) 1625 state = "warm start"; 1626 else if (phba->link_state == LPFC_INIT_START) 1627 state = "offline"; 1628 else 1629 state = "online"; 1630 1631 return snprintf(buf, PAGE_SIZE, "%s\n", state); 1632 } 1633 1634 /** 1635 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1636 * @dev: class device that is converted into a Scsi_host. 1637 * @attr: device attribute, not used. 1638 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1639 * @count: unused variable. 1640 * 1641 * Returns: 1642 * -EACCES if enable hba reset not enabled 1643 * -EINVAL if the buffer does not contain a valid string (see above) 1644 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1645 * buf length greater than zero indicates success 1646 **/ 1647 static ssize_t 1648 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1649 const char *buf, size_t count) 1650 { 1651 struct Scsi_Host *shost = class_to_shost(dev); 1652 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1653 struct lpfc_hba *phba = vport->phba; 1654 struct completion online_compl; 1655 char *board_mode_str = NULL; 1656 int status = 0; 1657 int rc; 1658 1659 if (!phba->cfg_enable_hba_reset) { 1660 status = -EACCES; 1661 goto board_mode_out; 1662 } 1663 1664 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1665 "3050 lpfc_board_mode set to %s\n", buf); 1666 1667 init_completion(&online_compl); 1668 1669 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1670 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1671 LPFC_EVT_ONLINE); 1672 if (rc == 0) { 1673 status = -ENOMEM; 1674 goto board_mode_out; 1675 } 1676 wait_for_completion(&online_compl); 1677 if (status) 1678 status = -EIO; 1679 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1680 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1681 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1682 if (phba->sli_rev == LPFC_SLI_REV4) 1683 status = -EINVAL; 1684 else 1685 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1686 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1687 if (phba->sli_rev == LPFC_SLI_REV4) 1688 status = -EINVAL; 1689 else 1690 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1691 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1692 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1693 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1694 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1695 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1696 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1697 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1698 == 0) 1699 status = lpfc_reset_pci_bus(phba); 1700 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1701 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1702 else 1703 status = -EINVAL; 1704 1705 board_mode_out: 1706 if (!status) 1707 return strlen(buf); 1708 else { 1709 board_mode_str = strchr(buf, '\n'); 1710 if (board_mode_str) 1711 *board_mode_str = '\0'; 1712 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1713 "3097 Failed \"%s\", status(%d), " 1714 "fc_flag(x%x)\n", 1715 buf, status, phba->pport->fc_flag); 1716 return status; 1717 } 1718 } 1719 1720 /** 1721 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1722 * @phba: pointer to the adapter structure. 1723 * @mxri: max xri count. 1724 * @axri: available xri count. 1725 * @mrpi: max rpi count. 1726 * @arpi: available rpi count. 1727 * @mvpi: max vpi count. 1728 * @avpi: available vpi count. 1729 * 1730 * Description: 1731 * If an integer pointer for an count is not null then the value for the 1732 * count is returned. 1733 * 1734 * Returns: 1735 * zero on error 1736 * one for success 1737 **/ 1738 static int 1739 lpfc_get_hba_info(struct lpfc_hba *phba, 1740 uint32_t *mxri, uint32_t *axri, 1741 uint32_t *mrpi, uint32_t *arpi, 1742 uint32_t *mvpi, uint32_t *avpi) 1743 { 1744 struct lpfc_mbx_read_config *rd_config; 1745 LPFC_MBOXQ_t *pmboxq; 1746 MAILBOX_t *pmb; 1747 int rc = 0; 1748 uint32_t max_vpi; 1749 1750 /* 1751 * prevent udev from issuing mailbox commands until the port is 1752 * configured. 1753 */ 1754 if (phba->link_state < LPFC_LINK_DOWN || 1755 !phba->mbox_mem_pool || 1756 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1757 return 0; 1758 1759 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1760 return 0; 1761 1762 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1763 if (!pmboxq) 1764 return 0; 1765 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1766 1767 pmb = &pmboxq->u.mb; 1768 pmb->mbxCommand = MBX_READ_CONFIG; 1769 pmb->mbxOwner = OWN_HOST; 1770 pmboxq->ctx_buf = NULL; 1771 1772 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1773 rc = MBX_NOT_FINISHED; 1774 else 1775 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1776 1777 if (rc != MBX_SUCCESS) { 1778 if (rc != MBX_TIMEOUT) 1779 mempool_free(pmboxq, phba->mbox_mem_pool); 1780 return 0; 1781 } 1782 1783 if (phba->sli_rev == LPFC_SLI_REV4) { 1784 rd_config = &pmboxq->u.mqe.un.rd_config; 1785 if (mrpi) 1786 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1787 if (arpi) 1788 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1789 phba->sli4_hba.max_cfg_param.rpi_used; 1790 if (mxri) 1791 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1792 if (axri) 1793 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1794 phba->sli4_hba.max_cfg_param.xri_used; 1795 1796 /* Account for differences with SLI-3. Get vpi count from 1797 * mailbox data and subtract one for max vpi value. 1798 */ 1799 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1800 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1801 1802 /* Limit the max we support */ 1803 if (max_vpi > LPFC_MAX_VPI) 1804 max_vpi = LPFC_MAX_VPI; 1805 if (mvpi) 1806 *mvpi = max_vpi; 1807 if (avpi) 1808 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1809 } else { 1810 if (mrpi) 1811 *mrpi = pmb->un.varRdConfig.max_rpi; 1812 if (arpi) 1813 *arpi = pmb->un.varRdConfig.avail_rpi; 1814 if (mxri) 1815 *mxri = pmb->un.varRdConfig.max_xri; 1816 if (axri) 1817 *axri = pmb->un.varRdConfig.avail_xri; 1818 if (mvpi) 1819 *mvpi = pmb->un.varRdConfig.max_vpi; 1820 if (avpi) { 1821 /* avail_vpi is only valid if link is up and ready */ 1822 if (phba->link_state == LPFC_HBA_READY) 1823 *avpi = pmb->un.varRdConfig.avail_vpi; 1824 else 1825 *avpi = pmb->un.varRdConfig.max_vpi; 1826 } 1827 } 1828 1829 mempool_free(pmboxq, phba->mbox_mem_pool); 1830 return 1; 1831 } 1832 1833 /** 1834 * lpfc_max_rpi_show - Return maximum rpi 1835 * @dev: class device that is converted into a Scsi_host. 1836 * @attr: device attribute, not used. 1837 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1838 * 1839 * Description: 1840 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1841 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1842 * to "Unknown" and the buffer length is returned, therefore the caller 1843 * must check for "Unknown" in the buffer to detect a failure. 1844 * 1845 * Returns: size of formatted string. 1846 **/ 1847 static ssize_t 1848 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1849 char *buf) 1850 { 1851 struct Scsi_Host *shost = class_to_shost(dev); 1852 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1853 struct lpfc_hba *phba = vport->phba; 1854 uint32_t cnt; 1855 1856 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1857 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1858 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1859 } 1860 1861 /** 1862 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1863 * @dev: class device that is converted into a Scsi_host. 1864 * @attr: device attribute, not used. 1865 * @buf: containing the used rpi count in decimal or "Unknown". 1866 * 1867 * Description: 1868 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1869 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1870 * to "Unknown" and the buffer length is returned, therefore the caller 1871 * must check for "Unknown" in the buffer to detect a failure. 1872 * 1873 * Returns: size of formatted string. 1874 **/ 1875 static ssize_t 1876 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1877 char *buf) 1878 { 1879 struct Scsi_Host *shost = class_to_shost(dev); 1880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1881 struct lpfc_hba *phba = vport->phba; 1882 uint32_t cnt, acnt; 1883 1884 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1885 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1886 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1887 } 1888 1889 /** 1890 * lpfc_max_xri_show - Return maximum xri 1891 * @dev: class device that is converted into a Scsi_host. 1892 * @attr: device attribute, not used. 1893 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1894 * 1895 * Description: 1896 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1897 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1898 * to "Unknown" and the buffer length is returned, therefore the caller 1899 * must check for "Unknown" in the buffer to detect a failure. 1900 * 1901 * Returns: size of formatted string. 1902 **/ 1903 static ssize_t 1904 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1905 char *buf) 1906 { 1907 struct Scsi_Host *shost = class_to_shost(dev); 1908 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1909 struct lpfc_hba *phba = vport->phba; 1910 uint32_t cnt; 1911 1912 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 1913 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1914 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1915 } 1916 1917 /** 1918 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 1919 * @dev: class device that is converted into a Scsi_host. 1920 * @attr: device attribute, not used. 1921 * @buf: on return contains the used xri count in decimal or "Unknown". 1922 * 1923 * Description: 1924 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 1925 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1926 * to "Unknown" and the buffer length is returned, therefore the caller 1927 * must check for "Unknown" in the buffer to detect a failure. 1928 * 1929 * Returns: size of formatted string. 1930 **/ 1931 static ssize_t 1932 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 1933 char *buf) 1934 { 1935 struct Scsi_Host *shost = class_to_shost(dev); 1936 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1937 struct lpfc_hba *phba = vport->phba; 1938 uint32_t cnt, acnt; 1939 1940 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 1941 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1942 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1943 } 1944 1945 /** 1946 * lpfc_max_vpi_show - Return maximum vpi 1947 * @dev: class device that is converted into a Scsi_host. 1948 * @attr: device attribute, not used. 1949 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 1950 * 1951 * Description: 1952 * Calls lpfc_get_hba_info() asking for just the mvpi count. 1953 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1954 * to "Unknown" and the buffer length is returned, therefore the caller 1955 * must check for "Unknown" in the buffer to detect a failure. 1956 * 1957 * Returns: size of formatted string. 1958 **/ 1959 static ssize_t 1960 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 1961 char *buf) 1962 { 1963 struct Scsi_Host *shost = class_to_shost(dev); 1964 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1965 struct lpfc_hba *phba = vport->phba; 1966 uint32_t cnt; 1967 1968 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 1969 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1970 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1971 } 1972 1973 /** 1974 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 1975 * @dev: class device that is converted into a Scsi_host. 1976 * @attr: device attribute, not used. 1977 * @buf: on return contains the used vpi count in decimal or "Unknown". 1978 * 1979 * Description: 1980 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 1981 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1982 * to "Unknown" and the buffer length is returned, therefore the caller 1983 * must check for "Unknown" in the buffer to detect a failure. 1984 * 1985 * Returns: size of formatted string. 1986 **/ 1987 static ssize_t 1988 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 1989 char *buf) 1990 { 1991 struct Scsi_Host *shost = class_to_shost(dev); 1992 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1993 struct lpfc_hba *phba = vport->phba; 1994 uint32_t cnt, acnt; 1995 1996 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 1997 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1998 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1999 } 2000 2001 /** 2002 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2003 * @dev: class device that is converted into a Scsi_host. 2004 * @attr: device attribute, not used. 2005 * @buf: text that must be interpreted to determine if npiv is supported. 2006 * 2007 * Description: 2008 * Buffer will contain text indicating npiv is not suppoerted on the port, 2009 * the port is an NPIV physical port, or it is an npiv virtual port with 2010 * the id of the vport. 2011 * 2012 * Returns: size of formatted string. 2013 **/ 2014 static ssize_t 2015 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2016 char *buf) 2017 { 2018 struct Scsi_Host *shost = class_to_shost(dev); 2019 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2020 struct lpfc_hba *phba = vport->phba; 2021 2022 if (!(phba->max_vpi)) 2023 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2024 if (vport->port_type == LPFC_PHYSICAL_PORT) 2025 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2026 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2027 } 2028 2029 /** 2030 * lpfc_poll_show - Return text about poll support for the adapter 2031 * @dev: class device that is converted into a Scsi_host. 2032 * @attr: device attribute, not used. 2033 * @buf: on return contains the cfg_poll in hex. 2034 * 2035 * Notes: 2036 * cfg_poll should be a lpfc_polling_flags type. 2037 * 2038 * Returns: size of formatted string. 2039 **/ 2040 static ssize_t 2041 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2042 char *buf) 2043 { 2044 struct Scsi_Host *shost = class_to_shost(dev); 2045 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2046 struct lpfc_hba *phba = vport->phba; 2047 2048 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2049 } 2050 2051 /** 2052 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2053 * @dev: class device that is converted into a Scsi_host. 2054 * @attr: device attribute, not used. 2055 * @buf: one or more lpfc_polling_flags values. 2056 * @count: not used. 2057 * 2058 * Notes: 2059 * buf contents converted to integer and checked for a valid value. 2060 * 2061 * Returns: 2062 * -EINVAL if the buffer connot be converted or is out of range 2063 * length of the buf on success 2064 **/ 2065 static ssize_t 2066 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2067 const char *buf, size_t count) 2068 { 2069 struct Scsi_Host *shost = class_to_shost(dev); 2070 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2071 struct lpfc_hba *phba = vport->phba; 2072 uint32_t creg_val; 2073 uint32_t old_val; 2074 int val=0; 2075 2076 if (!isdigit(buf[0])) 2077 return -EINVAL; 2078 2079 if (sscanf(buf, "%i", &val) != 1) 2080 return -EINVAL; 2081 2082 if ((val & 0x3) != val) 2083 return -EINVAL; 2084 2085 if (phba->sli_rev == LPFC_SLI_REV4) 2086 val = 0; 2087 2088 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2089 "3051 lpfc_poll changed from %d to %d\n", 2090 phba->cfg_poll, val); 2091 2092 spin_lock_irq(&phba->hbalock); 2093 2094 old_val = phba->cfg_poll; 2095 2096 if (val & ENABLE_FCP_RING_POLLING) { 2097 if ((val & DISABLE_FCP_RING_INT) && 2098 !(old_val & DISABLE_FCP_RING_INT)) { 2099 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2100 spin_unlock_irq(&phba->hbalock); 2101 return -EINVAL; 2102 } 2103 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2104 writel(creg_val, phba->HCregaddr); 2105 readl(phba->HCregaddr); /* flush */ 2106 2107 lpfc_poll_start_timer(phba); 2108 } 2109 } else if (val != 0x0) { 2110 spin_unlock_irq(&phba->hbalock); 2111 return -EINVAL; 2112 } 2113 2114 if (!(val & DISABLE_FCP_RING_INT) && 2115 (old_val & DISABLE_FCP_RING_INT)) 2116 { 2117 spin_unlock_irq(&phba->hbalock); 2118 del_timer(&phba->fcp_poll_timer); 2119 spin_lock_irq(&phba->hbalock); 2120 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2121 spin_unlock_irq(&phba->hbalock); 2122 return -EINVAL; 2123 } 2124 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2125 writel(creg_val, phba->HCregaddr); 2126 readl(phba->HCregaddr); /* flush */ 2127 } 2128 2129 phba->cfg_poll = val; 2130 2131 spin_unlock_irq(&phba->hbalock); 2132 2133 return strlen(buf); 2134 } 2135 2136 /** 2137 * lpfc_fips_level_show - Return the current FIPS level for the HBA 2138 * @dev: class unused variable. 2139 * @attr: device attribute, not used. 2140 * @buf: on return contains the module description text. 2141 * 2142 * Returns: size of formatted string. 2143 **/ 2144 static ssize_t 2145 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 2146 char *buf) 2147 { 2148 struct Scsi_Host *shost = class_to_shost(dev); 2149 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2150 struct lpfc_hba *phba = vport->phba; 2151 2152 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 2153 } 2154 2155 /** 2156 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 2157 * @dev: class unused variable. 2158 * @attr: device attribute, not used. 2159 * @buf: on return contains the module description text. 2160 * 2161 * Returns: size of formatted string. 2162 **/ 2163 static ssize_t 2164 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 2165 char *buf) 2166 { 2167 struct Scsi_Host *shost = class_to_shost(dev); 2168 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2169 struct lpfc_hba *phba = vport->phba; 2170 2171 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 2172 } 2173 2174 /** 2175 * lpfc_dss_show - Return the current state of dss and the configured state 2176 * @dev: class converted to a Scsi_host structure. 2177 * @attr: device attribute, not used. 2178 * @buf: on return contains the formatted text. 2179 * 2180 * Returns: size of formatted string. 2181 **/ 2182 static ssize_t 2183 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 2184 char *buf) 2185 { 2186 struct Scsi_Host *shost = class_to_shost(dev); 2187 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2188 struct lpfc_hba *phba = vport->phba; 2189 2190 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 2191 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 2192 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 2193 "" : "Not "); 2194 } 2195 2196 /** 2197 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2198 * @dev: class converted to a Scsi_host structure. 2199 * @attr: device attribute, not used. 2200 * @buf: on return contains the formatted support level. 2201 * 2202 * Description: 2203 * Returns the maximum number of virtual functions a physical function can 2204 * support, 0 will be returned if called on virtual function. 2205 * 2206 * Returns: size of formatted string. 2207 **/ 2208 static ssize_t 2209 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2210 struct device_attribute *attr, 2211 char *buf) 2212 { 2213 struct Scsi_Host *shost = class_to_shost(dev); 2214 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2215 struct lpfc_hba *phba = vport->phba; 2216 uint16_t max_nr_virtfn; 2217 2218 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2219 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2220 } 2221 2222 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2223 { 2224 return val >= min && val <= max; 2225 } 2226 2227 /** 2228 * lpfc_enable_bbcr_set: Sets an attribute value. 2229 * @phba: pointer the the adapter structure. 2230 * @val: integer attribute value. 2231 * 2232 * Description: 2233 * Validates the min and max values then sets the 2234 * adapter config field if in the valid range. prints error message 2235 * and does not set the parameter if invalid. 2236 * 2237 * Returns: 2238 * zero on success 2239 * -EINVAL if val is invalid 2240 */ 2241 static ssize_t 2242 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2243 { 2244 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2246 "3068 %s_enable_bbcr changed from %d to %d\n", 2247 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2248 phba->cfg_enable_bbcr = val; 2249 return 0; 2250 } 2251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2252 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2253 LPFC_DRIVER_NAME, val); 2254 return -EINVAL; 2255 } 2256 2257 /** 2258 * lpfc_param_show - Return a cfg attribute value in decimal 2259 * 2260 * Description: 2261 * Macro that given an attr e.g. hba_queue_depth expands 2262 * into a function with the name lpfc_hba_queue_depth_show. 2263 * 2264 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2265 * @dev: class device that is converted into a Scsi_host. 2266 * @attr: device attribute, not used. 2267 * @buf: on return contains the attribute value in decimal. 2268 * 2269 * Returns: size of formatted string. 2270 **/ 2271 #define lpfc_param_show(attr) \ 2272 static ssize_t \ 2273 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2274 char *buf) \ 2275 { \ 2276 struct Scsi_Host *shost = class_to_shost(dev);\ 2277 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2278 struct lpfc_hba *phba = vport->phba;\ 2279 return snprintf(buf, PAGE_SIZE, "%d\n",\ 2280 phba->cfg_##attr);\ 2281 } 2282 2283 /** 2284 * lpfc_param_hex_show - Return a cfg attribute value in hex 2285 * 2286 * Description: 2287 * Macro that given an attr e.g. hba_queue_depth expands 2288 * into a function with the name lpfc_hba_queue_depth_show 2289 * 2290 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2291 * @dev: class device that is converted into a Scsi_host. 2292 * @attr: device attribute, not used. 2293 * @buf: on return contains the attribute value in hexadecimal. 2294 * 2295 * Returns: size of formatted string. 2296 **/ 2297 #define lpfc_param_hex_show(attr) \ 2298 static ssize_t \ 2299 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2300 char *buf) \ 2301 { \ 2302 struct Scsi_Host *shost = class_to_shost(dev);\ 2303 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2304 struct lpfc_hba *phba = vport->phba;\ 2305 uint val = 0;\ 2306 val = phba->cfg_##attr;\ 2307 return snprintf(buf, PAGE_SIZE, "%#x\n",\ 2308 phba->cfg_##attr);\ 2309 } 2310 2311 /** 2312 * lpfc_param_init - Initializes a cfg attribute 2313 * 2314 * Description: 2315 * Macro that given an attr e.g. hba_queue_depth expands 2316 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2317 * takes a default argument, a minimum and maximum argument. 2318 * 2319 * lpfc_##attr##_init: Initializes an attribute. 2320 * @phba: pointer the the adapter structure. 2321 * @val: integer attribute value. 2322 * 2323 * Validates the min and max values then sets the adapter config field 2324 * accordingly, or uses the default if out of range and prints an error message. 2325 * 2326 * Returns: 2327 * zero on success 2328 * -EINVAL if default used 2329 **/ 2330 #define lpfc_param_init(attr, default, minval, maxval) \ 2331 static int \ 2332 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2333 { \ 2334 if (lpfc_rangecheck(val, minval, maxval)) {\ 2335 phba->cfg_##attr = val;\ 2336 return 0;\ 2337 }\ 2338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2339 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2340 "allowed range is ["#minval", "#maxval"]\n", val); \ 2341 phba->cfg_##attr = default;\ 2342 return -EINVAL;\ 2343 } 2344 2345 /** 2346 * lpfc_param_set - Set a cfg attribute value 2347 * 2348 * Description: 2349 * Macro that given an attr e.g. hba_queue_depth expands 2350 * into a function with the name lpfc_hba_queue_depth_set 2351 * 2352 * lpfc_##attr##_set: Sets an attribute value. 2353 * @phba: pointer the the adapter structure. 2354 * @val: integer attribute value. 2355 * 2356 * Description: 2357 * Validates the min and max values then sets the 2358 * adapter config field if in the valid range. prints error message 2359 * and does not set the parameter if invalid. 2360 * 2361 * Returns: 2362 * zero on success 2363 * -EINVAL if val is invalid 2364 **/ 2365 #define lpfc_param_set(attr, default, minval, maxval) \ 2366 static int \ 2367 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2368 { \ 2369 if (lpfc_rangecheck(val, minval, maxval)) {\ 2370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2371 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2372 phba->cfg_##attr, val); \ 2373 phba->cfg_##attr = val;\ 2374 return 0;\ 2375 }\ 2376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2377 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2378 "allowed range is ["#minval", "#maxval"]\n", val); \ 2379 return -EINVAL;\ 2380 } 2381 2382 /** 2383 * lpfc_param_store - Set a vport attribute value 2384 * 2385 * Description: 2386 * Macro that given an attr e.g. hba_queue_depth expands 2387 * into a function with the name lpfc_hba_queue_depth_store. 2388 * 2389 * lpfc_##attr##_store: Set an sttribute value. 2390 * @dev: class device that is converted into a Scsi_host. 2391 * @attr: device attribute, not used. 2392 * @buf: contains the attribute value in ascii. 2393 * @count: not used. 2394 * 2395 * Description: 2396 * Convert the ascii text number to an integer, then 2397 * use the lpfc_##attr##_set function to set the value. 2398 * 2399 * Returns: 2400 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2401 * length of buffer upon success. 2402 **/ 2403 #define lpfc_param_store(attr) \ 2404 static ssize_t \ 2405 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2406 const char *buf, size_t count) \ 2407 { \ 2408 struct Scsi_Host *shost = class_to_shost(dev);\ 2409 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2410 struct lpfc_hba *phba = vport->phba;\ 2411 uint val = 0;\ 2412 if (!isdigit(buf[0]))\ 2413 return -EINVAL;\ 2414 if (sscanf(buf, "%i", &val) != 1)\ 2415 return -EINVAL;\ 2416 if (lpfc_##attr##_set(phba, val) == 0) \ 2417 return strlen(buf);\ 2418 else \ 2419 return -EINVAL;\ 2420 } 2421 2422 /** 2423 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2424 * 2425 * Description: 2426 * Macro that given an attr e.g. hba_queue_depth expands 2427 * into a function with the name lpfc_hba_queue_depth_show 2428 * 2429 * lpfc_##attr##_show: prints the attribute value in decimal. 2430 * @dev: class device that is converted into a Scsi_host. 2431 * @attr: device attribute, not used. 2432 * @buf: on return contains the attribute value in decimal. 2433 * 2434 * Returns: length of formatted string. 2435 **/ 2436 #define lpfc_vport_param_show(attr) \ 2437 static ssize_t \ 2438 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2439 char *buf) \ 2440 { \ 2441 struct Scsi_Host *shost = class_to_shost(dev);\ 2442 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2443 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2444 } 2445 2446 /** 2447 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2448 * 2449 * Description: 2450 * Macro that given an attr e.g. 2451 * hba_queue_depth expands into a function with the name 2452 * lpfc_hba_queue_depth_show 2453 * 2454 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2455 * @dev: class device that is converted into a Scsi_host. 2456 * @attr: device attribute, not used. 2457 * @buf: on return contains the attribute value in hexadecimal. 2458 * 2459 * Returns: length of formatted string. 2460 **/ 2461 #define lpfc_vport_param_hex_show(attr) \ 2462 static ssize_t \ 2463 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2464 char *buf) \ 2465 { \ 2466 struct Scsi_Host *shost = class_to_shost(dev);\ 2467 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2468 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2469 } 2470 2471 /** 2472 * lpfc_vport_param_init - Initialize a vport cfg attribute 2473 * 2474 * Description: 2475 * Macro that given an attr e.g. hba_queue_depth expands 2476 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2477 * takes a default argument, a minimum and maximum argument. 2478 * 2479 * lpfc_##attr##_init: validates the min and max values then sets the 2480 * adapter config field accordingly, or uses the default if out of range 2481 * and prints an error message. 2482 * @phba: pointer the the adapter structure. 2483 * @val: integer attribute value. 2484 * 2485 * Returns: 2486 * zero on success 2487 * -EINVAL if default used 2488 **/ 2489 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2490 static int \ 2491 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2492 { \ 2493 if (lpfc_rangecheck(val, minval, maxval)) {\ 2494 vport->cfg_##attr = val;\ 2495 return 0;\ 2496 }\ 2497 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2498 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2499 "allowed range is ["#minval", "#maxval"]\n", val); \ 2500 vport->cfg_##attr = default;\ 2501 return -EINVAL;\ 2502 } 2503 2504 /** 2505 * lpfc_vport_param_set - Set a vport cfg attribute 2506 * 2507 * Description: 2508 * Macro that given an attr e.g. hba_queue_depth expands 2509 * into a function with the name lpfc_hba_queue_depth_set 2510 * 2511 * lpfc_##attr##_set: validates the min and max values then sets the 2512 * adapter config field if in the valid range. prints error message 2513 * and does not set the parameter if invalid. 2514 * @phba: pointer the the adapter structure. 2515 * @val: integer attribute value. 2516 * 2517 * Returns: 2518 * zero on success 2519 * -EINVAL if val is invalid 2520 **/ 2521 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2522 static int \ 2523 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2524 { \ 2525 if (lpfc_rangecheck(val, minval, maxval)) {\ 2526 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2527 "3053 lpfc_" #attr \ 2528 " changed from %d (x%x) to %d (x%x)\n", \ 2529 vport->cfg_##attr, vport->cfg_##attr, \ 2530 val, val); \ 2531 vport->cfg_##attr = val;\ 2532 return 0;\ 2533 }\ 2534 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2535 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2536 "allowed range is ["#minval", "#maxval"]\n", val); \ 2537 return -EINVAL;\ 2538 } 2539 2540 /** 2541 * lpfc_vport_param_store - Set a vport attribute 2542 * 2543 * Description: 2544 * Macro that given an attr e.g. hba_queue_depth 2545 * expands into a function with the name lpfc_hba_queue_depth_store 2546 * 2547 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2548 * use the lpfc_##attr##_set function to set the value. 2549 * @cdev: class device that is converted into a Scsi_host. 2550 * @buf: contains the attribute value in decimal. 2551 * @count: not used. 2552 * 2553 * Returns: 2554 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2555 * length of buffer upon success. 2556 **/ 2557 #define lpfc_vport_param_store(attr) \ 2558 static ssize_t \ 2559 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2560 const char *buf, size_t count) \ 2561 { \ 2562 struct Scsi_Host *shost = class_to_shost(dev);\ 2563 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2564 uint val = 0;\ 2565 if (!isdigit(buf[0]))\ 2566 return -EINVAL;\ 2567 if (sscanf(buf, "%i", &val) != 1)\ 2568 return -EINVAL;\ 2569 if (lpfc_##attr##_set(vport, val) == 0) \ 2570 return strlen(buf);\ 2571 else \ 2572 return -EINVAL;\ 2573 } 2574 2575 2576 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2577 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2578 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2579 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2580 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2581 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2582 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2583 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2584 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2585 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2586 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2587 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2588 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2589 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2590 lpfc_link_state_store); 2591 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2592 lpfc_option_rom_version_show, NULL); 2593 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2594 lpfc_num_discovered_ports_show, NULL); 2595 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2596 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2597 static DEVICE_ATTR_RO(lpfc_drvr_version); 2598 static DEVICE_ATTR_RO(lpfc_enable_fip); 2599 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2600 lpfc_board_mode_show, lpfc_board_mode_store); 2601 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2602 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2603 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2604 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2605 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2606 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2607 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2608 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2609 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2610 static DEVICE_ATTR_RO(lpfc_fips_level); 2611 static DEVICE_ATTR_RO(lpfc_fips_rev); 2612 static DEVICE_ATTR_RO(lpfc_dss); 2613 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2614 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2615 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2616 NULL); 2617 2618 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2619 #define WWN_SZ 8 2620 /** 2621 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2622 * @buf: WWN string. 2623 * @cnt: Length of string. 2624 * @wwn: Array to receive converted wwn value. 2625 * 2626 * Returns: 2627 * -EINVAL if the buffer does not contain a valid wwn 2628 * 0 success 2629 **/ 2630 static size_t 2631 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2632 { 2633 unsigned int i, j; 2634 2635 /* Count may include a LF at end of string */ 2636 if (buf[cnt-1] == '\n') 2637 cnt--; 2638 2639 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2640 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2641 return -EINVAL; 2642 2643 memset(wwn, 0, WWN_SZ); 2644 2645 /* Validate and store the new name */ 2646 for (i = 0, j = 0; i < 16; i++) { 2647 if ((*buf >= 'a') && (*buf <= 'f')) 2648 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2649 else if ((*buf >= 'A') && (*buf <= 'F')) 2650 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2651 else if ((*buf >= '0') && (*buf <= '9')) 2652 j = ((j << 4) | (*buf++ - '0')); 2653 else 2654 return -EINVAL; 2655 if (i % 2) { 2656 wwn[i/2] = j & 0xff; 2657 j = 0; 2658 } 2659 } 2660 return 0; 2661 } 2662 /** 2663 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2664 * @dev: class device that is converted into a Scsi_host. 2665 * @attr: device attribute, not used. 2666 * @buf: containing the string lpfc_soft_wwn_key. 2667 * @count: must be size of lpfc_soft_wwn_key. 2668 * 2669 * Returns: 2670 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2671 * length of buf indicates success 2672 **/ 2673 static ssize_t 2674 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2675 const char *buf, size_t count) 2676 { 2677 struct Scsi_Host *shost = class_to_shost(dev); 2678 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2679 struct lpfc_hba *phba = vport->phba; 2680 unsigned int cnt = count; 2681 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2682 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2683 2684 /* 2685 * We're doing a simple sanity check for soft_wwpn setting. 2686 * We require that the user write a specific key to enable 2687 * the soft_wwpn attribute to be settable. Once the attribute 2688 * is written, the enable key resets. If further updates are 2689 * desired, the key must be written again to re-enable the 2690 * attribute. 2691 * 2692 * The "key" is not secret - it is a hardcoded string shown 2693 * here. The intent is to protect against the random user or 2694 * application that is just writing attributes. 2695 */ 2696 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2698 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2699 " be enabled: fawwpn is enabled\n"); 2700 return -EINVAL; 2701 } 2702 2703 /* count may include a LF at end of string */ 2704 if (buf[cnt-1] == '\n') 2705 cnt--; 2706 2707 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2708 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2709 return -EINVAL; 2710 2711 phba->soft_wwn_enable = 1; 2712 2713 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2714 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2715 phba->brd_no); 2716 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2717 " The soft_wwpn feature is not supported by Broadcom."); 2718 2719 return count; 2720 } 2721 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2722 2723 /** 2724 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2725 * @dev: class device that is converted into a Scsi_host. 2726 * @attr: device attribute, not used. 2727 * @buf: on return contains the wwpn in hexadecimal. 2728 * 2729 * Returns: size of formatted string. 2730 **/ 2731 static ssize_t 2732 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2733 char *buf) 2734 { 2735 struct Scsi_Host *shost = class_to_shost(dev); 2736 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2737 struct lpfc_hba *phba = vport->phba; 2738 2739 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2740 (unsigned long long)phba->cfg_soft_wwpn); 2741 } 2742 2743 /** 2744 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2745 * @dev class device that is converted into a Scsi_host. 2746 * @attr: device attribute, not used. 2747 * @buf: contains the wwpn in hexadecimal. 2748 * @count: number of wwpn bytes in buf 2749 * 2750 * Returns: 2751 * -EACCES hba reset not enabled, adapter over temp 2752 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2753 * -EIO error taking adapter offline or online 2754 * value of count on success 2755 **/ 2756 static ssize_t 2757 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2758 const char *buf, size_t count) 2759 { 2760 struct Scsi_Host *shost = class_to_shost(dev); 2761 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2762 struct lpfc_hba *phba = vport->phba; 2763 struct completion online_compl; 2764 int stat1 = 0, stat2 = 0; 2765 unsigned int cnt = count; 2766 u8 wwpn[WWN_SZ]; 2767 int rc; 2768 2769 if (!phba->cfg_enable_hba_reset) 2770 return -EACCES; 2771 spin_lock_irq(&phba->hbalock); 2772 if (phba->over_temp_state == HBA_OVER_TEMP) { 2773 spin_unlock_irq(&phba->hbalock); 2774 return -EACCES; 2775 } 2776 spin_unlock_irq(&phba->hbalock); 2777 /* count may include a LF at end of string */ 2778 if (buf[cnt-1] == '\n') 2779 cnt--; 2780 2781 if (!phba->soft_wwn_enable) 2782 return -EINVAL; 2783 2784 /* lock setting wwpn, wwnn down */ 2785 phba->soft_wwn_enable = 0; 2786 2787 rc = lpfc_wwn_set(buf, cnt, wwpn); 2788 if (rc) { 2789 /* not able to set wwpn, unlock it */ 2790 phba->soft_wwn_enable = 1; 2791 return rc; 2792 } 2793 2794 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2795 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2796 if (phba->cfg_soft_wwnn) 2797 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2798 2799 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2800 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2801 2802 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2803 if (stat1) 2804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2805 "0463 lpfc_soft_wwpn attribute set failed to " 2806 "reinit adapter - %d\n", stat1); 2807 init_completion(&online_compl); 2808 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2809 LPFC_EVT_ONLINE); 2810 if (rc == 0) 2811 return -ENOMEM; 2812 2813 wait_for_completion(&online_compl); 2814 if (stat2) 2815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2816 "0464 lpfc_soft_wwpn attribute set failed to " 2817 "reinit adapter - %d\n", stat2); 2818 return (stat1 || stat2) ? -EIO : count; 2819 } 2820 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2821 2822 /** 2823 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2824 * @dev: class device that is converted into a Scsi_host. 2825 * @attr: device attribute, not used. 2826 * @buf: on return contains the wwnn in hexadecimal. 2827 * 2828 * Returns: size of formatted string. 2829 **/ 2830 static ssize_t 2831 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2832 char *buf) 2833 { 2834 struct Scsi_Host *shost = class_to_shost(dev); 2835 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2836 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2837 (unsigned long long)phba->cfg_soft_wwnn); 2838 } 2839 2840 /** 2841 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2842 * @cdev: class device that is converted into a Scsi_host. 2843 * @buf: contains the ww node name in hexadecimal. 2844 * @count: number of wwnn bytes in buf. 2845 * 2846 * Returns: 2847 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2848 * value of count on success 2849 **/ 2850 static ssize_t 2851 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2852 const char *buf, size_t count) 2853 { 2854 struct Scsi_Host *shost = class_to_shost(dev); 2855 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2856 unsigned int cnt = count; 2857 u8 wwnn[WWN_SZ]; 2858 int rc; 2859 2860 /* count may include a LF at end of string */ 2861 if (buf[cnt-1] == '\n') 2862 cnt--; 2863 2864 if (!phba->soft_wwn_enable) 2865 return -EINVAL; 2866 2867 rc = lpfc_wwn_set(buf, cnt, wwnn); 2868 if (rc) { 2869 /* Allow wwnn to be set many times, as long as the enable 2870 * is set. However, once the wwpn is set, everything locks. 2871 */ 2872 return rc; 2873 } 2874 2875 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2876 2877 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2878 "lpfc%d: soft_wwnn set. Value will take effect upon " 2879 "setting of the soft_wwpn\n", phba->brd_no); 2880 2881 return count; 2882 } 2883 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2884 2885 /** 2886 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2887 * Optimized Access Storage (OAS) operations. 2888 * @dev: class device that is converted into a Scsi_host. 2889 * @attr: device attribute, not used. 2890 * @buf: buffer for passing information. 2891 * 2892 * Returns: 2893 * value of count 2894 **/ 2895 static ssize_t 2896 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2897 char *buf) 2898 { 2899 struct Scsi_Host *shost = class_to_shost(dev); 2900 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2901 2902 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2903 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2904 } 2905 2906 /** 2907 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2908 * Optimized Access Storage (OAS) operations. 2909 * @dev: class device that is converted into a Scsi_host. 2910 * @attr: device attribute, not used. 2911 * @buf: buffer for passing information. 2912 * @count: Size of the data buffer. 2913 * 2914 * Returns: 2915 * -EINVAL count is invalid, invalid wwpn byte invalid 2916 * -EPERM oas is not supported by hba 2917 * value of count on success 2918 **/ 2919 static ssize_t 2920 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2921 const char *buf, size_t count) 2922 { 2923 struct Scsi_Host *shost = class_to_shost(dev); 2924 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2925 unsigned int cnt = count; 2926 uint8_t wwpn[WWN_SZ]; 2927 int rc; 2928 2929 if (!phba->cfg_fof) 2930 return -EPERM; 2931 2932 /* count may include a LF at end of string */ 2933 if (buf[cnt-1] == '\n') 2934 cnt--; 2935 2936 rc = lpfc_wwn_set(buf, cnt, wwpn); 2937 if (rc) 2938 return rc; 2939 2940 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2941 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2942 if (wwn_to_u64(wwpn) == 0) 2943 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2944 else 2945 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2946 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2947 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2948 return count; 2949 } 2950 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2951 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2952 2953 /** 2954 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2955 * Optimized Access Storage (OAS) operations. 2956 * @dev: class device that is converted into a Scsi_host. 2957 * @attr: device attribute, not used. 2958 * @buf: buffer for passing information. 2959 * 2960 * Returns: 2961 * value of count 2962 **/ 2963 static ssize_t 2964 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2965 char *buf) 2966 { 2967 struct Scsi_Host *shost = class_to_shost(dev); 2968 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2969 2970 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2971 } 2972 2973 /** 2974 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 2975 * Optimized Access Storage (OAS) operations. 2976 * @dev: class device that is converted into a Scsi_host. 2977 * @attr: device attribute, not used. 2978 * @buf: buffer for passing information. 2979 * @count: Size of the data buffer. 2980 * 2981 * Returns: 2982 * -EINVAL count is invalid, invalid wwpn byte invalid 2983 * -EPERM oas is not supported by hba 2984 * value of count on success 2985 **/ 2986 static ssize_t 2987 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 2988 const char *buf, size_t count) 2989 { 2990 struct Scsi_Host *shost = class_to_shost(dev); 2991 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2992 unsigned int cnt = count; 2993 unsigned long val; 2994 int ret; 2995 2996 if (!phba->cfg_fof) 2997 return -EPERM; 2998 2999 /* count may include a LF at end of string */ 3000 if (buf[cnt-1] == '\n') 3001 cnt--; 3002 3003 ret = kstrtoul(buf, 0, &val); 3004 if (ret || (val > 0x7f)) 3005 return -EINVAL; 3006 3007 if (val) 3008 phba->cfg_oas_priority = (uint8_t)val; 3009 else 3010 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3011 return count; 3012 } 3013 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3014 lpfc_oas_priority_show, lpfc_oas_priority_store); 3015 3016 /** 3017 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3018 * for Optimized Access Storage (OAS) operations. 3019 * @dev: class device that is converted into a Scsi_host. 3020 * @attr: device attribute, not used. 3021 * @buf: buffer for passing information. 3022 * 3023 * Returns: 3024 * value of count on success 3025 **/ 3026 static ssize_t 3027 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3028 char *buf) 3029 { 3030 struct Scsi_Host *shost = class_to_shost(dev); 3031 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3032 3033 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 3034 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3035 } 3036 3037 /** 3038 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3039 * for Optimized Access Storage (OAS) operations. 3040 * @dev: class device that is converted into a Scsi_host. 3041 * @attr: device attribute, not used. 3042 * @buf: buffer for passing information. 3043 * @count: Size of the data buffer. 3044 * 3045 * Returns: 3046 * -EINVAL count is invalid, invalid wwpn byte invalid 3047 * -EPERM oas is not supported by hba 3048 * value of count on success 3049 **/ 3050 static ssize_t 3051 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3052 const char *buf, size_t count) 3053 { 3054 struct Scsi_Host *shost = class_to_shost(dev); 3055 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3056 unsigned int cnt = count; 3057 uint8_t wwpn[WWN_SZ]; 3058 int rc; 3059 3060 if (!phba->cfg_fof) 3061 return -EPERM; 3062 3063 /* count may include a LF at end of string */ 3064 if (buf[cnt-1] == '\n') 3065 cnt--; 3066 3067 rc = lpfc_wwn_set(buf, cnt, wwpn); 3068 if (rc) 3069 return rc; 3070 3071 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3072 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3073 if (wwn_to_u64(wwpn) == 0) 3074 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3075 else 3076 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3077 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3078 if (phba->cfg_oas_priority == 0) 3079 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3080 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3081 return count; 3082 } 3083 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3084 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3085 3086 /** 3087 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3088 * of whether luns will be enabled or disabled 3089 * for Optimized Access Storage (OAS) operations. 3090 * @dev: class device that is converted into a Scsi_host. 3091 * @attr: device attribute, not used. 3092 * @buf: buffer for passing information. 3093 * 3094 * Returns: 3095 * size of formatted string. 3096 **/ 3097 static ssize_t 3098 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3099 char *buf) 3100 { 3101 struct Scsi_Host *shost = class_to_shost(dev); 3102 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3103 3104 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3105 } 3106 3107 /** 3108 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3109 * of whether luns will be enabled or disabled 3110 * for Optimized Access Storage (OAS) operations. 3111 * @dev: class device that is converted into a Scsi_host. 3112 * @attr: device attribute, not used. 3113 * @buf: buffer for passing information. 3114 * @count: Size of the data buffer. 3115 * 3116 * Returns: 3117 * -EINVAL count is invalid, invalid wwpn byte invalid 3118 * -EPERM oas is not supported by hba 3119 * value of count on success 3120 **/ 3121 static ssize_t 3122 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3123 const char *buf, size_t count) 3124 { 3125 struct Scsi_Host *shost = class_to_shost(dev); 3126 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3127 int val = 0; 3128 3129 if (!phba->cfg_fof) 3130 return -EPERM; 3131 3132 if (!isdigit(buf[0])) 3133 return -EINVAL; 3134 3135 if (sscanf(buf, "%i", &val) != 1) 3136 return -EINVAL; 3137 3138 if ((val != 0) && (val != 1)) 3139 return -EINVAL; 3140 3141 phba->cfg_oas_lun_state = val; 3142 return strlen(buf); 3143 } 3144 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3145 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3146 3147 /** 3148 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3149 * Storage (OAS) lun returned by the 3150 * lpfc_oas_lun_show function. 3151 * @dev: class device that is converted into a Scsi_host. 3152 * @attr: device attribute, not used. 3153 * @buf: buffer for passing information. 3154 * 3155 * Returns: 3156 * size of formatted string. 3157 **/ 3158 static ssize_t 3159 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3160 char *buf) 3161 { 3162 struct Scsi_Host *shost = class_to_shost(dev); 3163 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3164 3165 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3166 return -EFAULT; 3167 3168 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3169 } 3170 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3171 lpfc_oas_lun_status_show, NULL); 3172 3173 3174 /** 3175 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3176 * (OAS) operations. 3177 * @phba: lpfc_hba pointer. 3178 * @ndlp: pointer to fcp target node. 3179 * @lun: the fc lun for setting oas state. 3180 * @oas_state: the oas state to be set to the lun. 3181 * 3182 * Returns: 3183 * SUCCESS : 0 3184 * -EPERM OAS is not enabled or not supported by this port. 3185 * 3186 */ 3187 static size_t 3188 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3189 uint8_t tgt_wwpn[], uint64_t lun, 3190 uint32_t oas_state, uint8_t pri) 3191 { 3192 3193 int rc = 0; 3194 3195 if (!phba->cfg_fof) 3196 return -EPERM; 3197 3198 if (oas_state) { 3199 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3200 (struct lpfc_name *)tgt_wwpn, 3201 lun, pri)) 3202 rc = -ENOMEM; 3203 } else { 3204 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3205 (struct lpfc_name *)tgt_wwpn, lun, pri); 3206 } 3207 return rc; 3208 3209 } 3210 3211 /** 3212 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3213 * Access Storage (OAS) operations. 3214 * @phba: lpfc_hba pointer. 3215 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3216 * @tgt_wwpn: wwpn of the target associated with the returned lun 3217 * @lun_status: status of the lun returned lun 3218 * 3219 * Returns the first or next lun enabled for OAS operations for the vport/target 3220 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3221 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3222 * 3223 * Return: 3224 * lun that is OAS enabled for the vport/target 3225 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3226 */ 3227 static uint64_t 3228 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3229 uint8_t tgt_wwpn[], uint32_t *lun_status, 3230 uint32_t *lun_pri) 3231 { 3232 uint64_t found_lun; 3233 3234 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3235 return NOT_OAS_ENABLED_LUN; 3236 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3237 phba->sli4_hba.oas_next_vpt_wwpn, 3238 (struct lpfc_name *) 3239 phba->sli4_hba.oas_next_tgt_wwpn, 3240 &phba->sli4_hba.oas_next_lun, 3241 (struct lpfc_name *)vpt_wwpn, 3242 (struct lpfc_name *)tgt_wwpn, 3243 &found_lun, lun_status, lun_pri)) 3244 return found_lun; 3245 else 3246 return NOT_OAS_ENABLED_LUN; 3247 } 3248 3249 /** 3250 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3251 * @phba: lpfc_hba pointer. 3252 * @vpt_wwpn: vport wwpn by reference. 3253 * @tgt_wwpn: target wwpn by reference. 3254 * @lun: the fc lun for setting oas state. 3255 * @oas_state: the oas state to be set to the oas_lun. 3256 * 3257 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3258 * a lun for OAS operations. 3259 * 3260 * Return: 3261 * SUCCESS: 0 3262 * -ENOMEM: failed to enable an lun for OAS operations 3263 * -EPERM: OAS is not enabled 3264 */ 3265 static ssize_t 3266 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3267 uint8_t tgt_wwpn[], uint64_t lun, 3268 uint32_t oas_state, uint8_t pri) 3269 { 3270 3271 int rc; 3272 3273 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3274 oas_state, pri); 3275 return rc; 3276 } 3277 3278 /** 3279 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3280 * @dev: class device that is converted into a Scsi_host. 3281 * @attr: device attribute, not used. 3282 * @buf: buffer for passing information. 3283 * 3284 * This routine returns a lun enabled for OAS each time the function 3285 * is called. 3286 * 3287 * Returns: 3288 * SUCCESS: size of formatted string. 3289 * -EFAULT: target or vport wwpn was not set properly. 3290 * -EPERM: oas is not enabled. 3291 **/ 3292 static ssize_t 3293 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3294 char *buf) 3295 { 3296 struct Scsi_Host *shost = class_to_shost(dev); 3297 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3298 3299 uint64_t oas_lun; 3300 int len = 0; 3301 3302 if (!phba->cfg_fof) 3303 return -EPERM; 3304 3305 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3306 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3307 return -EFAULT; 3308 3309 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3310 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3311 return -EFAULT; 3312 3313 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3314 phba->cfg_oas_tgt_wwpn, 3315 &phba->cfg_oas_lun_status, 3316 &phba->cfg_oas_priority); 3317 if (oas_lun != NOT_OAS_ENABLED_LUN) 3318 phba->cfg_oas_flags |= OAS_LUN_VALID; 3319 3320 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3321 3322 return len; 3323 } 3324 3325 /** 3326 * lpfc_oas_lun_store - Sets the OAS state for lun 3327 * @dev: class device that is converted into a Scsi_host. 3328 * @attr: device attribute, not used. 3329 * @buf: buffer for passing information. 3330 * 3331 * This function sets the OAS state for lun. Before this function is called, 3332 * the vport wwpn, target wwpn, and oas state need to be set. 3333 * 3334 * Returns: 3335 * SUCCESS: size of formatted string. 3336 * -EFAULT: target or vport wwpn was not set properly. 3337 * -EPERM: oas is not enabled. 3338 * size of formatted string. 3339 **/ 3340 static ssize_t 3341 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3342 const char *buf, size_t count) 3343 { 3344 struct Scsi_Host *shost = class_to_shost(dev); 3345 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3346 uint64_t scsi_lun; 3347 uint32_t pri; 3348 ssize_t rc; 3349 3350 if (!phba->cfg_fof) 3351 return -EPERM; 3352 3353 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3354 return -EFAULT; 3355 3356 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3357 return -EFAULT; 3358 3359 if (!isdigit(buf[0])) 3360 return -EINVAL; 3361 3362 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3363 return -EINVAL; 3364 3365 pri = phba->cfg_oas_priority; 3366 if (pri == 0) 3367 pri = phba->cfg_XLanePriority; 3368 3369 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3370 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3371 "priority 0x%x with oas state %d\n", 3372 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3373 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3374 pri, phba->cfg_oas_lun_state); 3375 3376 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3377 phba->cfg_oas_tgt_wwpn, scsi_lun, 3378 phba->cfg_oas_lun_state, pri); 3379 if (rc) 3380 return rc; 3381 3382 return count; 3383 } 3384 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3385 lpfc_oas_lun_show, lpfc_oas_lun_store); 3386 3387 int lpfc_enable_nvmet_cnt; 3388 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3389 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3390 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3391 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3392 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3393 3394 static int lpfc_poll = 0; 3395 module_param(lpfc_poll, int, S_IRUGO); 3396 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3397 " 0 - none," 3398 " 1 - poll with interrupts enabled" 3399 " 3 - poll and disable FCP ring interrupts"); 3400 3401 static DEVICE_ATTR_RW(lpfc_poll); 3402 3403 int lpfc_no_hba_reset_cnt; 3404 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3405 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3406 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3407 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3408 3409 LPFC_ATTR(sli_mode, 0, 0, 3, 3410 "SLI mode selector:" 3411 " 0 - auto (SLI-3 if supported)," 3412 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3413 " 3 - select SLI-3"); 3414 3415 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3416 "Enable NPIV functionality"); 3417 3418 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3419 "FCF Fast failover=1 Priority failover=2"); 3420 3421 /* 3422 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3423 # 0x0 = disabled, XRI/OXID use not tracked. 3424 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3425 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3426 */ 3427 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3428 "Enable RRQ functionality"); 3429 3430 /* 3431 # lpfc_suppress_link_up: Bring link up at initialization 3432 # 0x0 = bring link up (issue MBX_INIT_LINK) 3433 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3434 # 0x2 = never bring up link 3435 # Default value is 0. 3436 */ 3437 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3438 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3439 "Suppress Link Up at initialization"); 3440 /* 3441 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3442 # 1 - (1024) 3443 # 2 - (2048) 3444 # 3 - (3072) 3445 # 4 - (4096) 3446 # 5 - (5120) 3447 */ 3448 static ssize_t 3449 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3450 { 3451 struct Scsi_Host *shost = class_to_shost(dev); 3452 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3453 3454 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3455 } 3456 3457 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3458 lpfc_iocb_hw_show, NULL); 3459 static ssize_t 3460 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3461 { 3462 struct Scsi_Host *shost = class_to_shost(dev); 3463 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3464 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3465 3466 return snprintf(buf, PAGE_SIZE, "%d\n", 3467 pring ? pring->txq_max : 0); 3468 } 3469 3470 static DEVICE_ATTR(txq_hw, S_IRUGO, 3471 lpfc_txq_hw_show, NULL); 3472 static ssize_t 3473 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3474 char *buf) 3475 { 3476 struct Scsi_Host *shost = class_to_shost(dev); 3477 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3478 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3479 3480 return snprintf(buf, PAGE_SIZE, "%d\n", 3481 pring ? pring->txcmplq_max : 0); 3482 } 3483 3484 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3485 lpfc_txcmplq_hw_show, NULL); 3486 3487 LPFC_ATTR_R(iocb_cnt, 2, 1, 5, 3488 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); 3489 3490 /* 3491 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3492 # until the timer expires. Value range is [0,255]. Default value is 30. 3493 */ 3494 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3495 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3496 module_param(lpfc_nodev_tmo, int, 0); 3497 MODULE_PARM_DESC(lpfc_nodev_tmo, 3498 "Seconds driver will hold I/O waiting " 3499 "for a device to come back"); 3500 3501 /** 3502 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3503 * @dev: class converted to a Scsi_host structure. 3504 * @attr: device attribute, not used. 3505 * @buf: on return contains the dev loss timeout in decimal. 3506 * 3507 * Returns: size of formatted string. 3508 **/ 3509 static ssize_t 3510 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3511 char *buf) 3512 { 3513 struct Scsi_Host *shost = class_to_shost(dev); 3514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3515 3516 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3517 } 3518 3519 /** 3520 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3521 * @vport: lpfc vport structure pointer. 3522 * @val: contains the nodev timeout value. 3523 * 3524 * Description: 3525 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3526 * a kernel error message is printed and zero is returned. 3527 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3528 * Otherwise nodev tmo is set to the default value. 3529 * 3530 * Returns: 3531 * zero if already set or if val is in range 3532 * -EINVAL val out of range 3533 **/ 3534 static int 3535 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3536 { 3537 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3538 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3539 if (val != LPFC_DEF_DEVLOSS_TMO) 3540 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3541 "0407 Ignoring lpfc_nodev_tmo module " 3542 "parameter because lpfc_devloss_tmo " 3543 "is set.\n"); 3544 return 0; 3545 } 3546 3547 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3548 vport->cfg_nodev_tmo = val; 3549 vport->cfg_devloss_tmo = val; 3550 return 0; 3551 } 3552 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3553 "0400 lpfc_nodev_tmo attribute cannot be set to" 3554 " %d, allowed range is [%d, %d]\n", 3555 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3556 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3557 return -EINVAL; 3558 } 3559 3560 /** 3561 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3562 * @vport: lpfc vport structure pointer. 3563 * 3564 * Description: 3565 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3566 **/ 3567 static void 3568 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3569 { 3570 struct Scsi_Host *shost; 3571 struct lpfc_nodelist *ndlp; 3572 #if (IS_ENABLED(CONFIG_NVME_FC)) 3573 struct lpfc_nvme_rport *rport; 3574 struct nvme_fc_remote_port *remoteport = NULL; 3575 #endif 3576 3577 shost = lpfc_shost_from_vport(vport); 3578 spin_lock_irq(shost->host_lock); 3579 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3580 if (!NLP_CHK_NODE_ACT(ndlp)) 3581 continue; 3582 if (ndlp->rport) 3583 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3584 #if (IS_ENABLED(CONFIG_NVME_FC)) 3585 spin_lock(&vport->phba->hbalock); 3586 rport = lpfc_ndlp_get_nrport(ndlp); 3587 if (rport) 3588 remoteport = rport->remoteport; 3589 spin_unlock(&vport->phba->hbalock); 3590 if (remoteport) 3591 nvme_fc_set_remoteport_devloss(rport->remoteport, 3592 vport->cfg_devloss_tmo); 3593 #endif 3594 } 3595 spin_unlock_irq(shost->host_lock); 3596 } 3597 3598 /** 3599 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3600 * @vport: lpfc vport structure pointer. 3601 * @val: contains the tmo value. 3602 * 3603 * Description: 3604 * If the devloss tmo is already set or the vport dev loss tmo has changed 3605 * then a kernel error message is printed and zero is returned. 3606 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3607 * Otherwise nodev tmo is set to the default value. 3608 * 3609 * Returns: 3610 * zero if already set or if val is in range 3611 * -EINVAL val out of range 3612 **/ 3613 static int 3614 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3615 { 3616 if (vport->dev_loss_tmo_changed || 3617 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3618 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3619 "0401 Ignoring change to lpfc_nodev_tmo " 3620 "because lpfc_devloss_tmo is set.\n"); 3621 return 0; 3622 } 3623 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3624 vport->cfg_nodev_tmo = val; 3625 vport->cfg_devloss_tmo = val; 3626 /* 3627 * For compat: set the fc_host dev loss so new rports 3628 * will get the value. 3629 */ 3630 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3631 lpfc_update_rport_devloss_tmo(vport); 3632 return 0; 3633 } 3634 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3635 "0403 lpfc_nodev_tmo attribute cannot be set to " 3636 "%d, allowed range is [%d, %d]\n", 3637 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3638 return -EINVAL; 3639 } 3640 3641 lpfc_vport_param_store(nodev_tmo) 3642 3643 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3644 3645 /* 3646 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3647 # disappear until the timer expires. Value range is [0,255]. Default 3648 # value is 30. 3649 */ 3650 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3651 MODULE_PARM_DESC(lpfc_devloss_tmo, 3652 "Seconds driver will hold I/O waiting " 3653 "for a device to come back"); 3654 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3655 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3656 lpfc_vport_param_show(devloss_tmo) 3657 3658 /** 3659 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3660 * @vport: lpfc vport structure pointer. 3661 * @val: contains the tmo value. 3662 * 3663 * Description: 3664 * If val is in a valid range then set the vport nodev tmo, 3665 * devloss tmo, also set the vport dev loss tmo changed flag. 3666 * Else a kernel error message is printed. 3667 * 3668 * Returns: 3669 * zero if val is in range 3670 * -EINVAL val out of range 3671 **/ 3672 static int 3673 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3674 { 3675 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3676 vport->cfg_nodev_tmo = val; 3677 vport->cfg_devloss_tmo = val; 3678 vport->dev_loss_tmo_changed = 1; 3679 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3680 lpfc_update_rport_devloss_tmo(vport); 3681 return 0; 3682 } 3683 3684 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3685 "0404 lpfc_devloss_tmo attribute cannot be set to " 3686 "%d, allowed range is [%d, %d]\n", 3687 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3688 return -EINVAL; 3689 } 3690 3691 lpfc_vport_param_store(devloss_tmo) 3692 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3693 3694 /* 3695 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3696 * lpfc_suppress_rsp = 0 Disable 3697 * lpfc_suppress_rsp = 1 Enable (default) 3698 * 3699 */ 3700 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3701 "Enable suppress rsp feature is firmware supports it"); 3702 3703 /* 3704 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3705 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3706 * lpfc_nvmet_mrq = 1 use a single RQ pair 3707 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3708 * 3709 */ 3710 LPFC_ATTR_R(nvmet_mrq, 3711 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3712 "Specify number of RQ pairs for processing NVMET cmds"); 3713 3714 /* 3715 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3716 * to each NVMET RQ. Range 64 to 2048, default is 512. 3717 */ 3718 LPFC_ATTR_R(nvmet_mrq_post, 3719 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3720 LPFC_NVMET_RQE_DEF_COUNT, 3721 "Specify number of RQ buffers to initially post"); 3722 3723 /* 3724 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3725 * Supported Values: 1 - register just FCP 3726 * 3 - register both FCP and NVME 3727 * Supported values are [1,3]. Default value is 1 3728 */ 3729 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_FCP, 3730 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3731 "Enable FC4 Protocol support - FCP / NVME"); 3732 3733 /* 3734 * lpfc_xri_split: Defines the division of XRI resources between SCSI and NVME 3735 * This parameter is only used if: 3736 * lpfc_enable_fc4_type is 3 - register both FCP and NVME and 3737 * port is not configured for NVMET. 3738 * 3739 * ELS/CT always get 10% of XRIs, up to a maximum of 250 3740 * The remaining XRIs get split up based on lpfc_xri_split per port: 3741 * 3742 * Supported Values are in percentages 3743 * the xri_split value is the percentage the SCSI port will get. The remaining 3744 * percentage will go to NVME. 3745 */ 3746 LPFC_ATTR_R(xri_split, 50, 10, 90, 3747 "Percentage of FCP XRI resources versus NVME"); 3748 3749 /* 3750 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3751 # deluged with LOTS of information. 3752 # You can set a bit mask to record specific types of verbose messages: 3753 # See lpfc_logmsh.h for definitions. 3754 */ 3755 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3756 "Verbose logging bit-mask"); 3757 3758 /* 3759 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3760 # objects that have been registered with the nameserver after login. 3761 */ 3762 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3763 "Deregister nameserver objects before LOGO"); 3764 3765 /* 3766 # lun_queue_depth: This parameter is used to limit the number of outstanding 3767 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3768 # If this parameter value is greater than 1/8th the maximum number of exchanges 3769 # supported by the HBA port, then the lun queue depth will be reduced to 3770 # 1/8th the maximum number of exchanges. 3771 */ 3772 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3773 "Max number of FCP commands we can queue to a specific LUN"); 3774 3775 /* 3776 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3777 # commands per target port. Value range is [10,65535]. Default value is 65535. 3778 */ 3779 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3780 module_param(lpfc_tgt_queue_depth, uint, 0444); 3781 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3782 lpfc_vport_param_show(tgt_queue_depth); 3783 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3784 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3785 3786 /** 3787 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3788 * @phba: pointer the the adapter structure. 3789 * @val: integer attribute value. 3790 * 3791 * Description: Sets the parameter to the new value. 3792 * 3793 * Returns: 3794 * zero on success 3795 * -EINVAL if val is invalid 3796 */ 3797 static int 3798 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3799 { 3800 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3801 struct lpfc_nodelist *ndlp; 3802 3803 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3804 return -EINVAL; 3805 3806 if (val == vport->cfg_tgt_queue_depth) 3807 return 0; 3808 3809 spin_lock_irq(shost->host_lock); 3810 vport->cfg_tgt_queue_depth = val; 3811 3812 /* Next loop thru nodelist and change cmd_qdepth */ 3813 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3814 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3815 3816 spin_unlock_irq(shost->host_lock); 3817 return 0; 3818 } 3819 3820 lpfc_vport_param_store(tgt_queue_depth); 3821 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3822 3823 /* 3824 # hba_queue_depth: This parameter is used to limit the number of outstanding 3825 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3826 # value is greater than the maximum number of exchanges supported by the HBA, 3827 # then maximum number of exchanges supported by the HBA is used to determine 3828 # the hba_queue_depth. 3829 */ 3830 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3831 "Max number of FCP commands we can queue to a lpfc HBA"); 3832 3833 /* 3834 # peer_port_login: This parameter allows/prevents logins 3835 # between peer ports hosted on the same physical port. 3836 # When this parameter is set 0 peer ports of same physical port 3837 # are not allowed to login to each other. 3838 # When this parameter is set 1 peer ports of same physical port 3839 # are allowed to login to each other. 3840 # Default value of this parameter is 0. 3841 */ 3842 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3843 "Allow peer ports on the same physical port to login to each " 3844 "other."); 3845 3846 /* 3847 # restrict_login: This parameter allows/prevents logins 3848 # between Virtual Ports and remote initiators. 3849 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3850 # other initiators and will attempt to PLOGI all remote ports. 3851 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3852 # remote ports and will not attempt to PLOGI to other initiators. 3853 # This parameter does not restrict to the physical port. 3854 # This parameter does not restrict logins to Fabric resident remote ports. 3855 # Default value of this parameter is 1. 3856 */ 3857 static int lpfc_restrict_login = 1; 3858 module_param(lpfc_restrict_login, int, S_IRUGO); 3859 MODULE_PARM_DESC(lpfc_restrict_login, 3860 "Restrict virtual ports login to remote initiators."); 3861 lpfc_vport_param_show(restrict_login); 3862 3863 /** 3864 * lpfc_restrict_login_init - Set the vport restrict login flag 3865 * @vport: lpfc vport structure pointer. 3866 * @val: contains the restrict login value. 3867 * 3868 * Description: 3869 * If val is not in a valid range then log a kernel error message and set 3870 * the vport restrict login to one. 3871 * If the port type is physical clear the restrict login flag and return. 3872 * Else set the restrict login flag to val. 3873 * 3874 * Returns: 3875 * zero if val is in range 3876 * -EINVAL val out of range 3877 **/ 3878 static int 3879 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3880 { 3881 if (val < 0 || val > 1) { 3882 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3883 "0422 lpfc_restrict_login attribute cannot " 3884 "be set to %d, allowed range is [0, 1]\n", 3885 val); 3886 vport->cfg_restrict_login = 1; 3887 return -EINVAL; 3888 } 3889 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3890 vport->cfg_restrict_login = 0; 3891 return 0; 3892 } 3893 vport->cfg_restrict_login = val; 3894 return 0; 3895 } 3896 3897 /** 3898 * lpfc_restrict_login_set - Set the vport restrict login flag 3899 * @vport: lpfc vport structure pointer. 3900 * @val: contains the restrict login value. 3901 * 3902 * Description: 3903 * If val is not in a valid range then log a kernel error message and set 3904 * the vport restrict login to one. 3905 * If the port type is physical and the val is not zero log a kernel 3906 * error message, clear the restrict login flag and return zero. 3907 * Else set the restrict login flag to val. 3908 * 3909 * Returns: 3910 * zero if val is in range 3911 * -EINVAL val out of range 3912 **/ 3913 static int 3914 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3915 { 3916 if (val < 0 || val > 1) { 3917 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3918 "0425 lpfc_restrict_login attribute cannot " 3919 "be set to %d, allowed range is [0, 1]\n", 3920 val); 3921 vport->cfg_restrict_login = 1; 3922 return -EINVAL; 3923 } 3924 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3925 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3926 "0468 lpfc_restrict_login must be 0 for " 3927 "Physical ports.\n"); 3928 vport->cfg_restrict_login = 0; 3929 return 0; 3930 } 3931 vport->cfg_restrict_login = val; 3932 return 0; 3933 } 3934 lpfc_vport_param_store(restrict_login); 3935 static DEVICE_ATTR_RW(lpfc_restrict_login); 3936 3937 /* 3938 # Some disk devices have a "select ID" or "select Target" capability. 3939 # From a protocol standpoint "select ID" usually means select the 3940 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3941 # annex" which contains a table that maps a "select ID" (a number 3942 # between 0 and 7F) to an ALPA. By default, for compatibility with 3943 # older drivers, the lpfc driver scans this table from low ALPA to high 3944 # ALPA. 3945 # 3946 # Turning on the scan-down variable (on = 1, off = 0) will 3947 # cause the lpfc driver to use an inverted table, effectively 3948 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3949 # 3950 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3951 # and will not work across a fabric. Also this parameter will take 3952 # effect only in the case when ALPA map is not available.) 3953 */ 3954 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3955 "Start scanning for devices from highest ALPA to lowest"); 3956 3957 /* 3958 # lpfc_topology: link topology for init link 3959 # 0x0 = attempt loop mode then point-to-point 3960 # 0x01 = internal loopback mode 3961 # 0x02 = attempt point-to-point mode only 3962 # 0x04 = attempt loop mode only 3963 # 0x06 = attempt point-to-point mode then loop 3964 # Set point-to-point mode if you want to run as an N_Port. 3965 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3966 # Default value is 0. 3967 */ 3968 LPFC_ATTR(topology, 0, 0, 6, 3969 "Select Fibre Channel topology"); 3970 3971 /** 3972 * lpfc_topology_set - Set the adapters topology field 3973 * @phba: lpfc_hba pointer. 3974 * @val: topology value. 3975 * 3976 * Description: 3977 * If val is in a valid range then set the adapter's topology field and 3978 * issue a lip; if the lip fails reset the topology to the old value. 3979 * 3980 * If the value is not in range log a kernel error message and return an error. 3981 * 3982 * Returns: 3983 * zero if val is in range and lip okay 3984 * non-zero return value from lpfc_issue_lip() 3985 * -EINVAL val out of range 3986 **/ 3987 static ssize_t 3988 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 3989 const char *buf, size_t count) 3990 { 3991 struct Scsi_Host *shost = class_to_shost(dev); 3992 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3993 struct lpfc_hba *phba = vport->phba; 3994 int val = 0; 3995 int nolip = 0; 3996 const char *val_buf = buf; 3997 int err; 3998 uint32_t prev_val; 3999 4000 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4001 nolip = 1; 4002 val_buf = &buf[strlen("nolip ")]; 4003 } 4004 4005 if (!isdigit(val_buf[0])) 4006 return -EINVAL; 4007 if (sscanf(val_buf, "%i", &val) != 1) 4008 return -EINVAL; 4009 4010 if (val >= 0 && val <= 6) { 4011 prev_val = phba->cfg_topology; 4012 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4013 val == 4) { 4014 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4015 "3113 Loop mode not supported at speed %d\n", 4016 val); 4017 return -EINVAL; 4018 } 4019 if ((phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4020 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC) && 4021 val == 4) { 4022 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4023 "3114 Loop mode not supported\n"); 4024 return -EINVAL; 4025 } 4026 phba->cfg_topology = val; 4027 if (nolip) 4028 return strlen(buf); 4029 4030 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4031 "3054 lpfc_topology changed from %d to %d\n", 4032 prev_val, val); 4033 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4034 phba->fc_topology_changed = 1; 4035 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4036 if (err) { 4037 phba->cfg_topology = prev_val; 4038 return -EINVAL; 4039 } else 4040 return strlen(buf); 4041 } 4042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4043 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4044 "allowed range is [0, 6]\n", 4045 phba->brd_no, val); 4046 return -EINVAL; 4047 } 4048 4049 lpfc_param_show(topology) 4050 static DEVICE_ATTR_RW(lpfc_topology); 4051 4052 /** 4053 * lpfc_static_vport_show: Read callback function for 4054 * lpfc_static_vport sysfs file. 4055 * @dev: Pointer to class device object. 4056 * @attr: device attribute structure. 4057 * @buf: Data buffer. 4058 * 4059 * This function is the read call back function for 4060 * lpfc_static_vport sysfs file. The lpfc_static_vport 4061 * sysfs file report the mageability of the vport. 4062 **/ 4063 static ssize_t 4064 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4065 char *buf) 4066 { 4067 struct Scsi_Host *shost = class_to_shost(dev); 4068 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4069 if (vport->vport_flag & STATIC_VPORT) 4070 sprintf(buf, "1\n"); 4071 else 4072 sprintf(buf, "0\n"); 4073 4074 return strlen(buf); 4075 } 4076 4077 /* 4078 * Sysfs attribute to control the statistical data collection. 4079 */ 4080 static DEVICE_ATTR_RO(lpfc_static_vport); 4081 4082 /** 4083 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4084 * @dev: Pointer to class device. 4085 * @buf: Data buffer. 4086 * @count: Size of the data buffer. 4087 * 4088 * This function get called when a user write to the lpfc_stat_data_ctrl 4089 * sysfs file. This function parse the command written to the sysfs file 4090 * and take appropriate action. These commands are used for controlling 4091 * driver statistical data collection. 4092 * Following are the command this function handles. 4093 * 4094 * setbucket <bucket_type> <base> <step> 4095 * = Set the latency buckets. 4096 * destroybucket = destroy all the buckets. 4097 * start = start data collection 4098 * stop = stop data collection 4099 * reset = reset the collected data 4100 **/ 4101 static ssize_t 4102 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4103 const char *buf, size_t count) 4104 { 4105 struct Scsi_Host *shost = class_to_shost(dev); 4106 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4107 struct lpfc_hba *phba = vport->phba; 4108 #define LPFC_MAX_DATA_CTRL_LEN 1024 4109 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4110 unsigned long i; 4111 char *str_ptr, *token; 4112 struct lpfc_vport **vports; 4113 struct Scsi_Host *v_shost; 4114 char *bucket_type_str, *base_str, *step_str; 4115 unsigned long base, step, bucket_type; 4116 4117 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4118 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4119 return -EINVAL; 4120 4121 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4122 str_ptr = &bucket_data[0]; 4123 /* Ignore this token - this is command token */ 4124 token = strsep(&str_ptr, "\t "); 4125 if (!token) 4126 return -EINVAL; 4127 4128 bucket_type_str = strsep(&str_ptr, "\t "); 4129 if (!bucket_type_str) 4130 return -EINVAL; 4131 4132 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4133 bucket_type = LPFC_LINEAR_BUCKET; 4134 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4135 bucket_type = LPFC_POWER2_BUCKET; 4136 else 4137 return -EINVAL; 4138 4139 base_str = strsep(&str_ptr, "\t "); 4140 if (!base_str) 4141 return -EINVAL; 4142 base = simple_strtoul(base_str, NULL, 0); 4143 4144 step_str = strsep(&str_ptr, "\t "); 4145 if (!step_str) 4146 return -EINVAL; 4147 step = simple_strtoul(step_str, NULL, 0); 4148 if (!step) 4149 return -EINVAL; 4150 4151 /* Block the data collection for every vport */ 4152 vports = lpfc_create_vport_work_array(phba); 4153 if (vports == NULL) 4154 return -ENOMEM; 4155 4156 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4157 v_shost = lpfc_shost_from_vport(vports[i]); 4158 spin_lock_irq(v_shost->host_lock); 4159 /* Block and reset data collection */ 4160 vports[i]->stat_data_blocked = 1; 4161 if (vports[i]->stat_data_enabled) 4162 lpfc_vport_reset_stat_data(vports[i]); 4163 spin_unlock_irq(v_shost->host_lock); 4164 } 4165 4166 /* Set the bucket attributes */ 4167 phba->bucket_type = bucket_type; 4168 phba->bucket_base = base; 4169 phba->bucket_step = step; 4170 4171 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4172 v_shost = lpfc_shost_from_vport(vports[i]); 4173 4174 /* Unblock data collection */ 4175 spin_lock_irq(v_shost->host_lock); 4176 vports[i]->stat_data_blocked = 0; 4177 spin_unlock_irq(v_shost->host_lock); 4178 } 4179 lpfc_destroy_vport_work_array(phba, vports); 4180 return strlen(buf); 4181 } 4182 4183 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4184 vports = lpfc_create_vport_work_array(phba); 4185 if (vports == NULL) 4186 return -ENOMEM; 4187 4188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4189 v_shost = lpfc_shost_from_vport(vports[i]); 4190 spin_lock_irq(shost->host_lock); 4191 vports[i]->stat_data_blocked = 1; 4192 lpfc_free_bucket(vport); 4193 vport->stat_data_enabled = 0; 4194 vports[i]->stat_data_blocked = 0; 4195 spin_unlock_irq(shost->host_lock); 4196 } 4197 lpfc_destroy_vport_work_array(phba, vports); 4198 phba->bucket_type = LPFC_NO_BUCKET; 4199 phba->bucket_base = 0; 4200 phba->bucket_step = 0; 4201 return strlen(buf); 4202 } 4203 4204 if (!strncmp(buf, "start", strlen("start"))) { 4205 /* If no buckets configured return error */ 4206 if (phba->bucket_type == LPFC_NO_BUCKET) 4207 return -EINVAL; 4208 spin_lock_irq(shost->host_lock); 4209 if (vport->stat_data_enabled) { 4210 spin_unlock_irq(shost->host_lock); 4211 return strlen(buf); 4212 } 4213 lpfc_alloc_bucket(vport); 4214 vport->stat_data_enabled = 1; 4215 spin_unlock_irq(shost->host_lock); 4216 return strlen(buf); 4217 } 4218 4219 if (!strncmp(buf, "stop", strlen("stop"))) { 4220 spin_lock_irq(shost->host_lock); 4221 if (vport->stat_data_enabled == 0) { 4222 spin_unlock_irq(shost->host_lock); 4223 return strlen(buf); 4224 } 4225 lpfc_free_bucket(vport); 4226 vport->stat_data_enabled = 0; 4227 spin_unlock_irq(shost->host_lock); 4228 return strlen(buf); 4229 } 4230 4231 if (!strncmp(buf, "reset", strlen("reset"))) { 4232 if ((phba->bucket_type == LPFC_NO_BUCKET) 4233 || !vport->stat_data_enabled) 4234 return strlen(buf); 4235 spin_lock_irq(shost->host_lock); 4236 vport->stat_data_blocked = 1; 4237 lpfc_vport_reset_stat_data(vport); 4238 vport->stat_data_blocked = 0; 4239 spin_unlock_irq(shost->host_lock); 4240 return strlen(buf); 4241 } 4242 return -EINVAL; 4243 } 4244 4245 4246 /** 4247 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4248 * @dev: Pointer to class device object. 4249 * @buf: Data buffer. 4250 * 4251 * This function is the read call back function for 4252 * lpfc_stat_data_ctrl sysfs file. This function report the 4253 * current statistical data collection state. 4254 **/ 4255 static ssize_t 4256 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4257 char *buf) 4258 { 4259 struct Scsi_Host *shost = class_to_shost(dev); 4260 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4261 struct lpfc_hba *phba = vport->phba; 4262 int index = 0; 4263 int i; 4264 char *bucket_type; 4265 unsigned long bucket_value; 4266 4267 switch (phba->bucket_type) { 4268 case LPFC_LINEAR_BUCKET: 4269 bucket_type = "linear"; 4270 break; 4271 case LPFC_POWER2_BUCKET: 4272 bucket_type = "power2"; 4273 break; 4274 default: 4275 bucket_type = "No Bucket"; 4276 break; 4277 } 4278 4279 sprintf(&buf[index], "Statistical Data enabled :%d, " 4280 "blocked :%d, Bucket type :%s, Bucket base :%d," 4281 " Bucket step :%d\nLatency Ranges :", 4282 vport->stat_data_enabled, vport->stat_data_blocked, 4283 bucket_type, phba->bucket_base, phba->bucket_step); 4284 index = strlen(buf); 4285 if (phba->bucket_type != LPFC_NO_BUCKET) { 4286 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4287 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4288 bucket_value = phba->bucket_base + 4289 phba->bucket_step * i; 4290 else 4291 bucket_value = phba->bucket_base + 4292 (1 << i) * phba->bucket_step; 4293 4294 if (index + 10 > PAGE_SIZE) 4295 break; 4296 sprintf(&buf[index], "%08ld ", bucket_value); 4297 index = strlen(buf); 4298 } 4299 } 4300 sprintf(&buf[index], "\n"); 4301 return strlen(buf); 4302 } 4303 4304 /* 4305 * Sysfs attribute to control the statistical data collection. 4306 */ 4307 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4308 4309 /* 4310 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4311 */ 4312 4313 /* 4314 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4315 * for each target. 4316 */ 4317 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4318 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4319 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4320 4321 4322 /** 4323 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4324 * @filp: sysfs file 4325 * @kobj: Pointer to the kernel object 4326 * @bin_attr: Attribute object 4327 * @buff: Buffer pointer 4328 * @off: File offset 4329 * @count: Buffer size 4330 * 4331 * This function is the read call back function for lpfc_drvr_stat_data 4332 * sysfs file. This function export the statistical data to user 4333 * applications. 4334 **/ 4335 static ssize_t 4336 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4337 struct bin_attribute *bin_attr, 4338 char *buf, loff_t off, size_t count) 4339 { 4340 struct device *dev = container_of(kobj, struct device, 4341 kobj); 4342 struct Scsi_Host *shost = class_to_shost(dev); 4343 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4344 struct lpfc_hba *phba = vport->phba; 4345 int i = 0, index = 0; 4346 unsigned long nport_index; 4347 struct lpfc_nodelist *ndlp = NULL; 4348 nport_index = (unsigned long)off / 4349 MAX_STAT_DATA_SIZE_PER_TARGET; 4350 4351 if (!vport->stat_data_enabled || vport->stat_data_blocked 4352 || (phba->bucket_type == LPFC_NO_BUCKET)) 4353 return 0; 4354 4355 spin_lock_irq(shost->host_lock); 4356 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4357 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 4358 continue; 4359 4360 if (nport_index > 0) { 4361 nport_index--; 4362 continue; 4363 } 4364 4365 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4366 > count) 4367 break; 4368 4369 if (!ndlp->lat_data) 4370 continue; 4371 4372 /* Print the WWN */ 4373 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4374 ndlp->nlp_portname.u.wwn[0], 4375 ndlp->nlp_portname.u.wwn[1], 4376 ndlp->nlp_portname.u.wwn[2], 4377 ndlp->nlp_portname.u.wwn[3], 4378 ndlp->nlp_portname.u.wwn[4], 4379 ndlp->nlp_portname.u.wwn[5], 4380 ndlp->nlp_portname.u.wwn[6], 4381 ndlp->nlp_portname.u.wwn[7]); 4382 4383 index = strlen(buf); 4384 4385 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4386 sprintf(&buf[index], "%010u,", 4387 ndlp->lat_data[i].cmd_count); 4388 index = strlen(buf); 4389 } 4390 sprintf(&buf[index], "\n"); 4391 index = strlen(buf); 4392 } 4393 spin_unlock_irq(shost->host_lock); 4394 return index; 4395 } 4396 4397 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4398 .attr = { 4399 .name = "lpfc_drvr_stat_data", 4400 .mode = S_IRUSR, 4401 }, 4402 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4403 .read = sysfs_drvr_stat_data_read, 4404 .write = NULL, 4405 }; 4406 4407 /* 4408 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4409 # connection. 4410 # Value range is [0,16]. Default value is 0. 4411 */ 4412 /** 4413 * lpfc_link_speed_set - Set the adapters link speed 4414 * @phba: lpfc_hba pointer. 4415 * @val: link speed value. 4416 * 4417 * Description: 4418 * If val is in a valid range then set the adapter's link speed field and 4419 * issue a lip; if the lip fails reset the link speed to the old value. 4420 * 4421 * Notes: 4422 * If the value is not in range log a kernel error message and return an error. 4423 * 4424 * Returns: 4425 * zero if val is in range and lip okay. 4426 * non-zero return value from lpfc_issue_lip() 4427 * -EINVAL val out of range 4428 **/ 4429 static ssize_t 4430 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4431 const char *buf, size_t count) 4432 { 4433 struct Scsi_Host *shost = class_to_shost(dev); 4434 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4435 struct lpfc_hba *phba = vport->phba; 4436 int val = LPFC_USER_LINK_SPEED_AUTO; 4437 int nolip = 0; 4438 const char *val_buf = buf; 4439 int err; 4440 uint32_t prev_val, if_type; 4441 4442 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4443 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4444 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4445 return -EPERM; 4446 4447 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4448 nolip = 1; 4449 val_buf = &buf[strlen("nolip ")]; 4450 } 4451 4452 if (!isdigit(val_buf[0])) 4453 return -EINVAL; 4454 if (sscanf(val_buf, "%i", &val) != 1) 4455 return -EINVAL; 4456 4457 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4458 "3055 lpfc_link_speed changed from %d to %d %s\n", 4459 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4460 4461 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4462 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4463 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4464 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4465 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4466 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4467 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4468 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4470 "2879 lpfc_link_speed attribute cannot be set " 4471 "to %d. Speed is not supported by this port.\n", 4472 val); 4473 return -EINVAL; 4474 } 4475 if (val >= LPFC_USER_LINK_SPEED_16G && 4476 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4478 "3112 lpfc_link_speed attribute cannot be set " 4479 "to %d. Speed is not supported in loop mode.\n", 4480 val); 4481 return -EINVAL; 4482 } 4483 4484 switch (val) { 4485 case LPFC_USER_LINK_SPEED_AUTO: 4486 case LPFC_USER_LINK_SPEED_1G: 4487 case LPFC_USER_LINK_SPEED_2G: 4488 case LPFC_USER_LINK_SPEED_4G: 4489 case LPFC_USER_LINK_SPEED_8G: 4490 case LPFC_USER_LINK_SPEED_16G: 4491 case LPFC_USER_LINK_SPEED_32G: 4492 case LPFC_USER_LINK_SPEED_64G: 4493 prev_val = phba->cfg_link_speed; 4494 phba->cfg_link_speed = val; 4495 if (nolip) 4496 return strlen(buf); 4497 4498 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4499 if (err) { 4500 phba->cfg_link_speed = prev_val; 4501 return -EINVAL; 4502 } 4503 return strlen(buf); 4504 default: 4505 break; 4506 } 4507 4508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4509 "0469 lpfc_link_speed attribute cannot be set to %d, " 4510 "allowed values are [%s]\n", 4511 val, LPFC_LINK_SPEED_STRING); 4512 return -EINVAL; 4513 4514 } 4515 4516 static int lpfc_link_speed = 0; 4517 module_param(lpfc_link_speed, int, S_IRUGO); 4518 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4519 lpfc_param_show(link_speed) 4520 4521 /** 4522 * lpfc_link_speed_init - Set the adapters link speed 4523 * @phba: lpfc_hba pointer. 4524 * @val: link speed value. 4525 * 4526 * Description: 4527 * If val is in a valid range then set the adapter's link speed field. 4528 * 4529 * Notes: 4530 * If the value is not in range log a kernel error message, clear the link 4531 * speed and return an error. 4532 * 4533 * Returns: 4534 * zero if val saved. 4535 * -EINVAL val out of range 4536 **/ 4537 static int 4538 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4539 { 4540 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4542 "3111 lpfc_link_speed of %d cannot " 4543 "support loop mode, setting topology to default.\n", 4544 val); 4545 phba->cfg_topology = 0; 4546 } 4547 4548 switch (val) { 4549 case LPFC_USER_LINK_SPEED_AUTO: 4550 case LPFC_USER_LINK_SPEED_1G: 4551 case LPFC_USER_LINK_SPEED_2G: 4552 case LPFC_USER_LINK_SPEED_4G: 4553 case LPFC_USER_LINK_SPEED_8G: 4554 case LPFC_USER_LINK_SPEED_16G: 4555 case LPFC_USER_LINK_SPEED_32G: 4556 case LPFC_USER_LINK_SPEED_64G: 4557 phba->cfg_link_speed = val; 4558 return 0; 4559 default: 4560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4561 "0405 lpfc_link_speed attribute cannot " 4562 "be set to %d, allowed values are " 4563 "["LPFC_LINK_SPEED_STRING"]\n", val); 4564 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4565 return -EINVAL; 4566 } 4567 } 4568 4569 static DEVICE_ATTR_RW(lpfc_link_speed); 4570 4571 /* 4572 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4573 # 0 = aer disabled or not supported 4574 # 1 = aer supported and enabled (default) 4575 # Value range is [0,1]. Default value is 1. 4576 */ 4577 LPFC_ATTR(aer_support, 1, 0, 1, 4578 "Enable PCIe device AER support"); 4579 lpfc_param_show(aer_support) 4580 4581 /** 4582 * lpfc_aer_support_store - Set the adapter for aer support 4583 * 4584 * @dev: class device that is converted into a Scsi_host. 4585 * @attr: device attribute, not used. 4586 * @buf: containing enable or disable aer flag. 4587 * @count: unused variable. 4588 * 4589 * Description: 4590 * If the val is 1 and currently the device's AER capability was not 4591 * enabled, invoke the kernel's enable AER helper routine, trying to 4592 * enable the device's AER capability. If the helper routine enabling 4593 * AER returns success, update the device's cfg_aer_support flag to 4594 * indicate AER is supported by the device; otherwise, if the device 4595 * AER capability is already enabled to support AER, then do nothing. 4596 * 4597 * If the val is 0 and currently the device's AER support was enabled, 4598 * invoke the kernel's disable AER helper routine. After that, update 4599 * the device's cfg_aer_support flag to indicate AER is not supported 4600 * by the device; otherwise, if the device AER capability is already 4601 * disabled from supporting AER, then do nothing. 4602 * 4603 * Returns: 4604 * length of the buf on success if val is in range the intended mode 4605 * is supported. 4606 * -EINVAL if val out of range or intended mode is not supported. 4607 **/ 4608 static ssize_t 4609 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4610 const char *buf, size_t count) 4611 { 4612 struct Scsi_Host *shost = class_to_shost(dev); 4613 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4614 struct lpfc_hba *phba = vport->phba; 4615 int val = 0, rc = -EINVAL; 4616 4617 if (!isdigit(buf[0])) 4618 return -EINVAL; 4619 if (sscanf(buf, "%i", &val) != 1) 4620 return -EINVAL; 4621 4622 switch (val) { 4623 case 0: 4624 if (phba->hba_flag & HBA_AER_ENABLED) { 4625 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4626 if (!rc) { 4627 spin_lock_irq(&phba->hbalock); 4628 phba->hba_flag &= ~HBA_AER_ENABLED; 4629 spin_unlock_irq(&phba->hbalock); 4630 phba->cfg_aer_support = 0; 4631 rc = strlen(buf); 4632 } else 4633 rc = -EPERM; 4634 } else { 4635 phba->cfg_aer_support = 0; 4636 rc = strlen(buf); 4637 } 4638 break; 4639 case 1: 4640 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4641 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4642 if (!rc) { 4643 spin_lock_irq(&phba->hbalock); 4644 phba->hba_flag |= HBA_AER_ENABLED; 4645 spin_unlock_irq(&phba->hbalock); 4646 phba->cfg_aer_support = 1; 4647 rc = strlen(buf); 4648 } else 4649 rc = -EPERM; 4650 } else { 4651 phba->cfg_aer_support = 1; 4652 rc = strlen(buf); 4653 } 4654 break; 4655 default: 4656 rc = -EINVAL; 4657 break; 4658 } 4659 return rc; 4660 } 4661 4662 static DEVICE_ATTR_RW(lpfc_aer_support); 4663 4664 /** 4665 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4666 * @dev: class device that is converted into a Scsi_host. 4667 * @attr: device attribute, not used. 4668 * @buf: containing flag 1 for aer cleanup state. 4669 * @count: unused variable. 4670 * 4671 * Description: 4672 * If the @buf contains 1 and the device currently has the AER support 4673 * enabled, then invokes the kernel AER helper routine 4674 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable 4675 * error status register. 4676 * 4677 * Notes: 4678 * 4679 * Returns: 4680 * -EINVAL if the buf does not contain the 1 or the device is not currently 4681 * enabled with the AER support. 4682 **/ 4683 static ssize_t 4684 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4685 const char *buf, size_t count) 4686 { 4687 struct Scsi_Host *shost = class_to_shost(dev); 4688 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4689 struct lpfc_hba *phba = vport->phba; 4690 int val, rc = -1; 4691 4692 if (!isdigit(buf[0])) 4693 return -EINVAL; 4694 if (sscanf(buf, "%i", &val) != 1) 4695 return -EINVAL; 4696 if (val != 1) 4697 return -EINVAL; 4698 4699 if (phba->hba_flag & HBA_AER_ENABLED) 4700 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); 4701 4702 if (rc == 0) 4703 return strlen(buf); 4704 else 4705 return -EPERM; 4706 } 4707 4708 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4709 lpfc_aer_cleanup_state); 4710 4711 /** 4712 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4713 * 4714 * @dev: class device that is converted into a Scsi_host. 4715 * @attr: device attribute, not used. 4716 * @buf: containing the string the number of vfs to be enabled. 4717 * @count: unused variable. 4718 * 4719 * Description: 4720 * When this api is called either through user sysfs, the driver shall 4721 * try to enable or disable SR-IOV virtual functions according to the 4722 * following: 4723 * 4724 * If zero virtual function has been enabled to the physical function, 4725 * the driver shall invoke the pci enable virtual function api trying 4726 * to enable the virtual functions. If the nr_vfn provided is greater 4727 * than the maximum supported, the maximum virtual function number will 4728 * be used for invoking the api; otherwise, the nr_vfn provided shall 4729 * be used for invoking the api. If the api call returned success, the 4730 * actual number of virtual functions enabled will be set to the driver 4731 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4732 * cfg_sriov_nr_virtfn remains zero. 4733 * 4734 * If none-zero virtual functions have already been enabled to the 4735 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4736 * -EINVAL will be returned and the driver does nothing; 4737 * 4738 * If the nr_vfn provided is zero and none-zero virtual functions have 4739 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4740 * disabling virtual function api shall be invoded to disable all the 4741 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4742 * zero. Otherwise, if zero virtual function has been enabled, do 4743 * nothing. 4744 * 4745 * Returns: 4746 * length of the buf on success if val is in range the intended mode 4747 * is supported. 4748 * -EINVAL if val out of range or intended mode is not supported. 4749 **/ 4750 static ssize_t 4751 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4752 const char *buf, size_t count) 4753 { 4754 struct Scsi_Host *shost = class_to_shost(dev); 4755 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4756 struct lpfc_hba *phba = vport->phba; 4757 struct pci_dev *pdev = phba->pcidev; 4758 int val = 0, rc = -EINVAL; 4759 4760 /* Sanity check on user data */ 4761 if (!isdigit(buf[0])) 4762 return -EINVAL; 4763 if (sscanf(buf, "%i", &val) != 1) 4764 return -EINVAL; 4765 if (val < 0) 4766 return -EINVAL; 4767 4768 /* Request disabling virtual functions */ 4769 if (val == 0) { 4770 if (phba->cfg_sriov_nr_virtfn > 0) { 4771 pci_disable_sriov(pdev); 4772 phba->cfg_sriov_nr_virtfn = 0; 4773 } 4774 return strlen(buf); 4775 } 4776 4777 /* Request enabling virtual functions */ 4778 if (phba->cfg_sriov_nr_virtfn > 0) { 4779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4780 "3018 There are %d virtual functions " 4781 "enabled on physical function.\n", 4782 phba->cfg_sriov_nr_virtfn); 4783 return -EEXIST; 4784 } 4785 4786 if (val <= LPFC_MAX_VFN_PER_PFN) 4787 phba->cfg_sriov_nr_virtfn = val; 4788 else { 4789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4790 "3019 Enabling %d virtual functions is not " 4791 "allowed.\n", val); 4792 return -EINVAL; 4793 } 4794 4795 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4796 if (rc) { 4797 phba->cfg_sriov_nr_virtfn = 0; 4798 rc = -EPERM; 4799 } else 4800 rc = strlen(buf); 4801 4802 return rc; 4803 } 4804 4805 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4806 "Enable PCIe device SR-IOV virtual fn"); 4807 4808 lpfc_param_show(sriov_nr_virtfn) 4809 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4810 4811 /** 4812 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4813 * 4814 * @dev: class device that is converted into a Scsi_host. 4815 * @attr: device attribute, not used. 4816 * @buf: containing the string the number of vfs to be enabled. 4817 * @count: unused variable. 4818 * 4819 * Description: 4820 * 4821 * Returns: 4822 * length of the buf on success if val is in range the intended mode 4823 * is supported. 4824 * -EINVAL if val out of range or intended mode is not supported. 4825 **/ 4826 static ssize_t 4827 lpfc_request_firmware_upgrade_store(struct device *dev, 4828 struct device_attribute *attr, 4829 const char *buf, size_t count) 4830 { 4831 struct Scsi_Host *shost = class_to_shost(dev); 4832 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4833 struct lpfc_hba *phba = vport->phba; 4834 int val = 0, rc = -EINVAL; 4835 4836 /* Sanity check on user data */ 4837 if (!isdigit(buf[0])) 4838 return -EINVAL; 4839 if (sscanf(buf, "%i", &val) != 1) 4840 return -EINVAL; 4841 if (val != 1) 4842 return -EINVAL; 4843 4844 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4845 if (rc) 4846 rc = -EPERM; 4847 else 4848 rc = strlen(buf); 4849 return rc; 4850 } 4851 4852 static int lpfc_req_fw_upgrade; 4853 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4854 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4855 lpfc_param_show(request_firmware_upgrade) 4856 4857 /** 4858 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4859 * @phba: lpfc_hba pointer. 4860 * @val: 0 or 1. 4861 * 4862 * Description: 4863 * Set the initial Linux generic firmware upgrade enable or disable flag. 4864 * 4865 * Returns: 4866 * zero if val saved. 4867 * -EINVAL val out of range 4868 **/ 4869 static int 4870 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4871 { 4872 if (val >= 0 && val <= 1) { 4873 phba->cfg_request_firmware_upgrade = val; 4874 return 0; 4875 } 4876 return -EINVAL; 4877 } 4878 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4879 lpfc_request_firmware_upgrade_show, 4880 lpfc_request_firmware_upgrade_store); 4881 4882 /** 4883 * lpfc_fcp_imax_store 4884 * 4885 * @dev: class device that is converted into a Scsi_host. 4886 * @attr: device attribute, not used. 4887 * @buf: string with the number of fast-path FCP interrupts per second. 4888 * @count: unused variable. 4889 * 4890 * Description: 4891 * If val is in a valid range [636,651042], then set the adapter's 4892 * maximum number of fast-path FCP interrupts per second. 4893 * 4894 * Returns: 4895 * length of the buf on success if val is in range the intended mode 4896 * is supported. 4897 * -EINVAL if val out of range or intended mode is not supported. 4898 **/ 4899 static ssize_t 4900 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4901 const char *buf, size_t count) 4902 { 4903 struct Scsi_Host *shost = class_to_shost(dev); 4904 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4905 struct lpfc_hba *phba = vport->phba; 4906 int val = 0, i; 4907 4908 /* fcp_imax is only valid for SLI4 */ 4909 if (phba->sli_rev != LPFC_SLI_REV4) 4910 return -EINVAL; 4911 4912 /* Sanity check on user data */ 4913 if (!isdigit(buf[0])) 4914 return -EINVAL; 4915 if (sscanf(buf, "%i", &val) != 1) 4916 return -EINVAL; 4917 4918 /* 4919 * Value range for the HBA is [5000,5000000] 4920 * The value for each EQ depends on how many EQs are configured. 4921 * Allow value == 0 4922 */ 4923 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4924 return -EINVAL; 4925 4926 phba->cfg_fcp_imax = (uint32_t)val; 4927 phba->initial_imax = phba->cfg_fcp_imax; 4928 4929 for (i = 0; i < phba->io_channel_irqs; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4930 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4931 val); 4932 4933 return strlen(buf); 4934 } 4935 4936 /* 4937 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4938 # for the HBA. 4939 # 4940 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 4941 */ 4942 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4943 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4944 MODULE_PARM_DESC(lpfc_fcp_imax, 4945 "Set the maximum number of FCP interrupts per second per HBA"); 4946 lpfc_param_show(fcp_imax) 4947 4948 /** 4949 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4950 * @phba: lpfc_hba pointer. 4951 * @val: link speed value. 4952 * 4953 * Description: 4954 * If val is in a valid range [636,651042], then initialize the adapter's 4955 * maximum number of fast-path FCP interrupts per second. 4956 * 4957 * Returns: 4958 * zero if val saved. 4959 * -EINVAL val out of range 4960 **/ 4961 static int 4962 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4963 { 4964 if (phba->sli_rev != LPFC_SLI_REV4) { 4965 phba->cfg_fcp_imax = 0; 4966 return 0; 4967 } 4968 4969 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4970 (val == 0)) { 4971 phba->cfg_fcp_imax = val; 4972 return 0; 4973 } 4974 4975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4976 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4977 val); 4978 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4979 4980 return 0; 4981 } 4982 4983 static DEVICE_ATTR_RW(lpfc_fcp_imax); 4984 4985 /* 4986 * lpfc_auto_imax: Controls Auto-interrupt coalescing values support. 4987 * 0 No auto_imax support 4988 * 1 auto imax on 4989 * Auto imax will change the value of fcp_imax on a per EQ basis, using 4990 * the EQ Delay Multiplier, depending on the activity for that EQ. 4991 * Value range [0,1]. Default value is 1. 4992 */ 4993 LPFC_ATTR_RW(auto_imax, 1, 0, 1, "Enable Auto imax"); 4994 4995 /** 4996 * lpfc_state_show - Display current driver CPU affinity 4997 * @dev: class converted to a Scsi_host structure. 4998 * @attr: device attribute, not used. 4999 * @buf: on return contains text describing the state of the link. 5000 * 5001 * Returns: size of formatted string. 5002 **/ 5003 static ssize_t 5004 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5005 char *buf) 5006 { 5007 struct Scsi_Host *shost = class_to_shost(dev); 5008 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5009 struct lpfc_hba *phba = vport->phba; 5010 struct lpfc_vector_map_info *cpup; 5011 int len = 0; 5012 5013 if ((phba->sli_rev != LPFC_SLI_REV4) || 5014 (phba->intr_type != MSIX)) 5015 return len; 5016 5017 switch (phba->cfg_fcp_cpu_map) { 5018 case 0: 5019 len += snprintf(buf + len, PAGE_SIZE-len, 5020 "fcp_cpu_map: No mapping (%d)\n", 5021 phba->cfg_fcp_cpu_map); 5022 return len; 5023 case 1: 5024 len += snprintf(buf + len, PAGE_SIZE-len, 5025 "fcp_cpu_map: HBA centric mapping (%d): " 5026 "%d online CPUs\n", 5027 phba->cfg_fcp_cpu_map, 5028 phba->sli4_hba.num_online_cpu); 5029 break; 5030 case 2: 5031 len += snprintf(buf + len, PAGE_SIZE-len, 5032 "fcp_cpu_map: Driver centric mapping (%d): " 5033 "%d online CPUs\n", 5034 phba->cfg_fcp_cpu_map, 5035 phba->sli4_hba.num_online_cpu); 5036 break; 5037 } 5038 5039 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) { 5040 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5041 5042 /* margin should fit in this and the truncated message */ 5043 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) 5044 len += snprintf(buf + len, PAGE_SIZE-len, 5045 "CPU %02d io_chan %02d " 5046 "physid %d coreid %d\n", 5047 phba->sli4_hba.curr_disp_cpu, 5048 cpup->channel_id, cpup->phys_id, 5049 cpup->core_id); 5050 else 5051 len += snprintf(buf + len, PAGE_SIZE-len, 5052 "CPU %02d io_chan %02d " 5053 "physid %d coreid %d IRQ %d\n", 5054 phba->sli4_hba.curr_disp_cpu, 5055 cpup->channel_id, cpup->phys_id, 5056 cpup->core_id, cpup->irq); 5057 5058 phba->sli4_hba.curr_disp_cpu++; 5059 5060 /* display max number of CPUs keeping some margin */ 5061 if (phba->sli4_hba.curr_disp_cpu < 5062 phba->sli4_hba.num_present_cpu && 5063 (len >= (PAGE_SIZE - 64))) { 5064 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n"); 5065 break; 5066 } 5067 } 5068 5069 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu) 5070 phba->sli4_hba.curr_disp_cpu = 0; 5071 5072 return len; 5073 } 5074 5075 /** 5076 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5077 * @dev: class device that is converted into a Scsi_host. 5078 * @attr: device attribute, not used. 5079 * @buf: one or more lpfc_polling_flags values. 5080 * @count: not used. 5081 * 5082 * Returns: 5083 * -EINVAL - Not implemented yet. 5084 **/ 5085 static ssize_t 5086 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5087 const char *buf, size_t count) 5088 { 5089 int status = -EINVAL; 5090 return status; 5091 } 5092 5093 /* 5094 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5095 # for the HBA. 5096 # 5097 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2). 5098 # 0 - Do not affinitze IRQ vectors 5099 # 1 - Affintize HBA vectors with respect to each HBA 5100 # (start with CPU0 for each HBA) 5101 # 2 - Affintize HBA vectors with respect to the entire driver 5102 # (round robin thru all CPUs across all HBAs) 5103 */ 5104 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 5105 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5106 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5107 "Defines how to map CPUs to IRQ vectors per HBA"); 5108 5109 /** 5110 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5111 * @phba: lpfc_hba pointer. 5112 * @val: link speed value. 5113 * 5114 * Description: 5115 * If val is in a valid range [0-2], then affinitze the adapter's 5116 * MSIX vectors. 5117 * 5118 * Returns: 5119 * zero if val saved. 5120 * -EINVAL val out of range 5121 **/ 5122 static int 5123 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5124 { 5125 if (phba->sli_rev != LPFC_SLI_REV4) { 5126 phba->cfg_fcp_cpu_map = 0; 5127 return 0; 5128 } 5129 5130 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5131 phba->cfg_fcp_cpu_map = val; 5132 return 0; 5133 } 5134 5135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5136 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5137 "default\n", val); 5138 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 5139 5140 return 0; 5141 } 5142 5143 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5144 5145 /* 5146 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5147 # Value range is [2,3]. Default value is 3. 5148 */ 5149 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5150 "Select Fibre Channel class of service for FCP sequences"); 5151 5152 /* 5153 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5154 # is [0,1]. Default value is 0. 5155 */ 5156 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5157 "Use ADISC on rediscovery to authenticate FCP devices"); 5158 5159 /* 5160 # lpfc_first_burst_size: First burst size to use on the NPorts 5161 # that support first burst. 5162 # Value range is [0,65536]. Default value is 0. 5163 */ 5164 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5165 "First burst size for Targets that support first burst"); 5166 5167 /* 5168 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5169 * When the driver is configured as an NVME target, this value is 5170 * communicated to the NVME initiator in the PRLI response. It is 5171 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5172 * parameters are set and the target is sending the PRLI RSP. 5173 * Parameter supported on physical port only - no NPIV support. 5174 * Value range is [0,65536]. Default value is 0. 5175 */ 5176 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5177 "NVME Target mode first burst size in 512B increments."); 5178 5179 /* 5180 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5181 * For the Initiator (I), enabling this parameter means that an NVMET 5182 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5183 * processed by the initiator for subsequent NVME FCP IO. For the target 5184 * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size 5185 * driver parameter as the target function's first burst size returned to the 5186 * initiator in the target's NVME PRLI response. Parameter supported on physical 5187 * port only - no NPIV support. 5188 * Value range is [0,1]. Default value is 0 (disabled). 5189 */ 5190 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5191 "Enable First Burst feature on I and T functions."); 5192 5193 /* 5194 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5195 # depth. Default value is 0. When the value of this parameter is zero the 5196 # SCSI command completion time is not used for controlling I/O queue depth. When 5197 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5198 # to limit the I/O completion time to the parameter value. 5199 # The value is set in milliseconds. 5200 */ 5201 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5202 "Use command completion time to control queue depth"); 5203 5204 lpfc_vport_param_show(max_scsicmpl_time); 5205 static int 5206 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5207 { 5208 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5209 struct lpfc_nodelist *ndlp, *next_ndlp; 5210 5211 if (val == vport->cfg_max_scsicmpl_time) 5212 return 0; 5213 if ((val < 0) || (val > 60000)) 5214 return -EINVAL; 5215 vport->cfg_max_scsicmpl_time = val; 5216 5217 spin_lock_irq(shost->host_lock); 5218 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5219 if (!NLP_CHK_NODE_ACT(ndlp)) 5220 continue; 5221 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5222 continue; 5223 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5224 } 5225 spin_unlock_irq(shost->host_lock); 5226 return 0; 5227 } 5228 lpfc_vport_param_store(max_scsicmpl_time); 5229 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5230 5231 /* 5232 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5233 # range is [0,1]. Default value is 0. 5234 */ 5235 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5236 5237 /* 5238 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5239 * range is [0,1]. Default value is 0. 5240 * For [0], FCP commands are issued to Work Queues ina round robin fashion. 5241 * For [1], FCP commands are issued to a Work Queue associated with the 5242 * current CPU. 5243 * 5244 * LPFC_FCP_SCHED_ROUND_ROBIN == 0 5245 * LPFC_FCP_SCHED_BY_CPU == 1 5246 * 5247 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5248 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5249 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5250 * through WQs will be used. 5251 */ 5252 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_ROUND_ROBIN, 5253 LPFC_FCP_SCHED_ROUND_ROBIN, 5254 LPFC_FCP_SCHED_BY_CPU, 5255 "Determine scheduling algorithm for " 5256 "issuing commands [0] - Round Robin, [1] - Current CPU"); 5257 5258 /* 5259 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5260 * range is [0,1]. Default value is 0. 5261 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5262 * For [1], GID_PT is used for NameServer queries after RSCN 5263 * 5264 */ 5265 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5266 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5267 "Determine algorithm NameServer queries after RSCN " 5268 "[0] - GID_FT, [1] - GID_PT"); 5269 5270 /* 5271 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5272 # range is [0,1]. Default value is 0. 5273 # For [0], bus reset issues target reset to ALL devices 5274 # For [1], bus reset issues target reset to non-FCP2 devices 5275 */ 5276 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5277 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5278 5279 5280 /* 5281 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5282 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5283 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5284 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5285 # cr_delay is set to 0. 5286 */ 5287 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5288 "interrupt response is generated"); 5289 5290 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5291 "interrupt response is generated"); 5292 5293 /* 5294 # lpfc_multi_ring_support: Determines how many rings to spread available 5295 # cmd/rsp IOCB entries across. 5296 # Value range is [1,2]. Default value is 1. 5297 */ 5298 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5299 "SLI rings to spread IOCB entries across"); 5300 5301 /* 5302 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5303 # identifies what rctl value to configure the additional ring for. 5304 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5305 */ 5306 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5307 255, "Identifies RCTL for additional ring configuration"); 5308 5309 /* 5310 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5311 # identifies what type value to configure the additional ring for. 5312 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5313 */ 5314 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5315 255, "Identifies TYPE for additional ring configuration"); 5316 5317 /* 5318 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5319 # 0 = SmartSAN functionality disabled (default) 5320 # 1 = SmartSAN functionality enabled 5321 # This parameter will override the value of lpfc_fdmi_on module parameter. 5322 # Value range is [0,1]. Default value is 0. 5323 */ 5324 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5325 5326 /* 5327 # lpfc_fdmi_on: Controls FDMI support. 5328 # 0 No FDMI support 5329 # 1 Traditional FDMI support (default) 5330 # Traditional FDMI support means the driver will assume FDMI-2 support; 5331 # however, if that fails, it will fallback to FDMI-1. 5332 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5333 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5334 # lpfc_fdmi_on. 5335 # Value range [0,1]. Default value is 1. 5336 */ 5337 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5338 5339 /* 5340 # Specifies the maximum number of ELS cmds we can have outstanding (for 5341 # discovery). Value range is [1,64]. Default value = 32. 5342 */ 5343 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5344 "during discovery"); 5345 5346 /* 5347 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5348 # will be scanned by the SCSI midlayer when sequential scanning is 5349 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5350 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5351 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5352 # above. The lpfc driver limits the default value to 255 for two reasons. 5353 # As it bounds the sequential scan loop, scanning for thousands of luns 5354 # on a target can take minutes of wall clock time. Additionally, 5355 # there are FC targets, such as JBODs, that only recognize 8-bits of 5356 # LUN ID. When they receive a value greater than 8 bits, they chop off 5357 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5358 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5359 # valid responses at each of the LUN IDs, to believe there are multiple 5360 # devices present, when in fact, there is only 1. 5361 # A customer that is aware of their target behaviors, and the results as 5362 # indicated above, is welcome to increase the lpfc_max_luns value. 5363 # As mentioned, this value is not used by the lpfc driver, only the 5364 # SCSI midlayer. 5365 # Value range is [0,65535]. Default value is 255. 5366 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5367 */ 5368 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5369 5370 /* 5371 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5372 # Value range is [1,255], default value is 10. 5373 */ 5374 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5375 "Milliseconds driver will wait between polling FCP ring"); 5376 5377 /* 5378 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5379 # to complete in seconds. Value range is [5,180], default value is 60. 5380 */ 5381 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5382 "Maximum time to wait for task management commands to complete"); 5383 /* 5384 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5385 # support this feature 5386 # 0 = MSI disabled 5387 # 1 = MSI enabled 5388 # 2 = MSI-X enabled (default) 5389 # Value range is [0,2]. Default value is 2. 5390 */ 5391 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5392 "MSI-X (2), if possible"); 5393 5394 /* 5395 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5396 * 5397 * 0 = NVME OAS disabled 5398 * 1 = NVME OAS enabled 5399 * 5400 * Value range is [0,1]. Default value is 0. 5401 */ 5402 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5403 "Use OAS bit on NVME IOs"); 5404 5405 /* 5406 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5407 * 5408 * 0 = Put NVME Command in SGL 5409 * 1 = Embed NVME Command in WQE (unless G7) 5410 * 2 = Embed NVME Command in WQE (force) 5411 * 5412 * Value range is [0,2]. Default value is 1. 5413 */ 5414 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5415 "Embed NVME Command in WQE"); 5416 5417 /* 5418 * lpfc_fcp_io_channel: Set the number of FCP IO channels the driver 5419 * will advertise it supports to the SCSI layer. This also will map to 5420 * the number of WQs the driver will create. 5421 * 5422 * 0 = Configure the number of io channels to the number of active CPUs. 5423 * 1,32 = Manually specify how many io channels to use. 5424 * 5425 * Value range is [0,32]. Default value is 4. 5426 */ 5427 LPFC_ATTR_R(fcp_io_channel, 5428 LPFC_FCP_IO_CHAN_DEF, 5429 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 5430 "Set the number of FCP I/O channels"); 5431 5432 /* 5433 * lpfc_nvme_io_channel: Set the number of IO hardware queues the driver 5434 * will advertise it supports to the NVME layer. This also will map to 5435 * the number of WQs the driver will create. 5436 * 5437 * This module parameter is valid when lpfc_enable_fc4_type is set 5438 * to support NVME. 5439 * 5440 * The NVME Layer will try to create this many, plus 1 administrative 5441 * hardware queue. The administrative queue will always map to WQ 0 5442 * A hardware IO queue maps (qidx) to a specific driver WQ. 5443 * 5444 * 0 = Configure the number of io channels to the number of active CPUs. 5445 * 1,32 = Manually specify how many io channels to use. 5446 * 5447 * Value range is [0,32]. Default value is 0. 5448 */ 5449 LPFC_ATTR_R(nvme_io_channel, 5450 LPFC_NVME_IO_CHAN_DEF, 5451 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 5452 "Set the number of NVME I/O channels"); 5453 5454 /* 5455 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5456 # 0 = HBA resets disabled 5457 # 1 = HBA resets enabled (default) 5458 # 2 = HBA reset via PCI bus reset enabled 5459 # Value range is [0,2]. Default value is 1. 5460 */ 5461 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5462 5463 /* 5464 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5465 # 0 = HBA Heartbeat disabled 5466 # 1 = HBA Heartbeat enabled (default) 5467 # Value range is [0,1]. Default value is 1. 5468 */ 5469 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5470 5471 /* 5472 # lpfc_EnableXLane: Enable Express Lane Feature 5473 # 0x0 Express Lane Feature disabled 5474 # 0x1 Express Lane Feature enabled 5475 # Value range is [0,1]. Default value is 0. 5476 */ 5477 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5478 5479 /* 5480 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5481 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5482 # Value range is [0x0,0x7f]. Default value is 0 5483 */ 5484 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5485 5486 /* 5487 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5488 # 0 = BlockGuard disabled (default) 5489 # 1 = BlockGuard enabled 5490 # Value range is [0,1]. Default value is 0. 5491 */ 5492 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5493 5494 /* 5495 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine 5496 # 0 = disabled (default) 5497 # 1 = enabled 5498 # Value range is [0,1]. Default value is 0. 5499 # 5500 # This feature in under investigation and may be supported in the future. 5501 */ 5502 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF; 5503 5504 /* 5505 # lpfc_prot_mask: i 5506 # - Bit mask of host protection capabilities used to register with the 5507 # SCSI mid-layer 5508 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5509 # - Allows you to ultimately specify which profiles to use 5510 # - Default will result in registering capabilities for all profiles. 5511 # - SHOST_DIF_TYPE1_PROTECTION 1 5512 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5513 # - SHOST_DIX_TYPE0_PROTECTION 8 5514 # HBA supports DIX Type 0: Host to HBA protection only 5515 # - SHOST_DIX_TYPE1_PROTECTION 16 5516 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5517 # 5518 */ 5519 LPFC_ATTR(prot_mask, 5520 (SHOST_DIF_TYPE1_PROTECTION | 5521 SHOST_DIX_TYPE0_PROTECTION | 5522 SHOST_DIX_TYPE1_PROTECTION), 5523 0, 5524 (SHOST_DIF_TYPE1_PROTECTION | 5525 SHOST_DIX_TYPE0_PROTECTION | 5526 SHOST_DIX_TYPE1_PROTECTION), 5527 "T10-DIF host protection capabilities mask"); 5528 5529 /* 5530 # lpfc_prot_guard: i 5531 # - Bit mask of protection guard types to register with the SCSI mid-layer 5532 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5533 # - Allows you to ultimately specify which profiles to use 5534 # - Default will result in registering capabilities for all guard types 5535 # 5536 */ 5537 LPFC_ATTR(prot_guard, 5538 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5539 "T10-DIF host protection guard type"); 5540 5541 /* 5542 * Delay initial NPort discovery when Clean Address bit is cleared in 5543 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5544 * This parameter can have value 0 or 1. 5545 * When this parameter is set to 0, no delay is added to the initial 5546 * discovery. 5547 * When this parameter is set to non-zero value, initial Nport discovery is 5548 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5549 * accept and FCID/Fabric name/Fabric portname is changed. 5550 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5551 * when Clean Address bit is cleared in FLOGI/FDISC 5552 * accept and FCID/Fabric name/Fabric portname is changed. 5553 * Default value is 0. 5554 */ 5555 LPFC_ATTR(delay_discovery, 0, 0, 1, 5556 "Delay NPort discovery when Clean Address bit is cleared."); 5557 5558 /* 5559 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5560 * This value can be set to values between 64 and 4096. The default value 5561 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5562 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5563 * Because of the additional overhead involved in setting up T10-DIF, 5564 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5565 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5566 */ 5567 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5568 module_param(lpfc_sg_seg_cnt, uint, 0444); 5569 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5570 5571 /** 5572 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5573 * configured for the adapter 5574 * @dev: class converted to a Scsi_host structure. 5575 * @attr: device attribute, not used. 5576 * @buf: on return contains a string with the list sizes 5577 * 5578 * Returns: size of formatted string. 5579 **/ 5580 static ssize_t 5581 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5582 char *buf) 5583 { 5584 struct Scsi_Host *shost = class_to_shost(dev); 5585 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5586 struct lpfc_hba *phba = vport->phba; 5587 int len; 5588 5589 len = snprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5590 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5591 5592 len += snprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 5593 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5594 phba->cfg_nvme_seg_cnt); 5595 return len; 5596 } 5597 5598 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5599 5600 /** 5601 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5602 * @phba: lpfc_hba pointer. 5603 * @val: contains the initial value 5604 * 5605 * Description: 5606 * Validates the initial value is within range and assigns it to the 5607 * adapter. If not in range, an error message is posted and the 5608 * default value is assigned. 5609 * 5610 * Returns: 5611 * zero if value is in range and is set 5612 * -EINVAL if value was out of range 5613 **/ 5614 static int 5615 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5616 { 5617 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5618 phba->cfg_sg_seg_cnt = val; 5619 return 0; 5620 } 5621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5622 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 5623 "be set to %d, allowed range is [%d, %d]\n", 5624 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5625 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5626 return -EINVAL; 5627 } 5628 5629 /* 5630 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5631 * 0 = MDS Diagnostics disabled (default) 5632 * 1 = MDS Diagnostics enabled 5633 * Value range is [0,1]. Default value is 0. 5634 */ 5635 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5636 5637 /* 5638 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5639 * 0 = Disable firmware logging (default) 5640 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 5641 * Value range [0..4]. Default value is 0 5642 */ 5643 LPFC_ATTR_RW(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 5644 5645 /* 5646 * lpfc_ras_fwlog_level: Firmware logging verbosity level 5647 * Valid only if firmware logging is enabled 5648 * 0(Least Verbosity) 4 (most verbosity) 5649 * Value range is [0..4]. Default value is 0 5650 */ 5651 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 5652 5653 /* 5654 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 5655 * Default function which has RAS support : 0 5656 * Value Range is [0..7]. 5657 * FW logging is a global action and enablement is via a specific 5658 * port. 5659 */ 5660 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 5661 5662 /* 5663 * lpfc_enable_bbcr: Enable BB Credit Recovery 5664 * 0 = BB Credit Recovery disabled 5665 * 1 = BB Credit Recovery enabled (default) 5666 * Value range is [0,1]. Default value is 1. 5667 */ 5668 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 5669 5670 /* 5671 * lpfc_enable_dpp: Enable DPP on G7 5672 * 0 = DPP on G7 disabled 5673 * 1 = DPP on G7 enabled (default) 5674 * Value range is [0,1]. Default value is 1. 5675 */ 5676 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 5677 5678 struct device_attribute *lpfc_hba_attrs[] = { 5679 &dev_attr_nvme_info, 5680 &dev_attr_bg_info, 5681 &dev_attr_bg_guard_err, 5682 &dev_attr_bg_apptag_err, 5683 &dev_attr_bg_reftag_err, 5684 &dev_attr_info, 5685 &dev_attr_serialnum, 5686 &dev_attr_modeldesc, 5687 &dev_attr_modelname, 5688 &dev_attr_programtype, 5689 &dev_attr_portnum, 5690 &dev_attr_fwrev, 5691 &dev_attr_hdw, 5692 &dev_attr_option_rom_version, 5693 &dev_attr_link_state, 5694 &dev_attr_num_discovered_ports, 5695 &dev_attr_menlo_mgmt_mode, 5696 &dev_attr_lpfc_drvr_version, 5697 &dev_attr_lpfc_enable_fip, 5698 &dev_attr_lpfc_temp_sensor, 5699 &dev_attr_lpfc_log_verbose, 5700 &dev_attr_lpfc_lun_queue_depth, 5701 &dev_attr_lpfc_tgt_queue_depth, 5702 &dev_attr_lpfc_hba_queue_depth, 5703 &dev_attr_lpfc_peer_port_login, 5704 &dev_attr_lpfc_nodev_tmo, 5705 &dev_attr_lpfc_devloss_tmo, 5706 &dev_attr_lpfc_enable_fc4_type, 5707 &dev_attr_lpfc_xri_split, 5708 &dev_attr_lpfc_fcp_class, 5709 &dev_attr_lpfc_use_adisc, 5710 &dev_attr_lpfc_first_burst_size, 5711 &dev_attr_lpfc_ack0, 5712 &dev_attr_lpfc_topology, 5713 &dev_attr_lpfc_scan_down, 5714 &dev_attr_lpfc_link_speed, 5715 &dev_attr_lpfc_fcp_io_sched, 5716 &dev_attr_lpfc_ns_query, 5717 &dev_attr_lpfc_fcp2_no_tgt_reset, 5718 &dev_attr_lpfc_cr_delay, 5719 &dev_attr_lpfc_cr_count, 5720 &dev_attr_lpfc_multi_ring_support, 5721 &dev_attr_lpfc_multi_ring_rctl, 5722 &dev_attr_lpfc_multi_ring_type, 5723 &dev_attr_lpfc_fdmi_on, 5724 &dev_attr_lpfc_enable_SmartSAN, 5725 &dev_attr_lpfc_max_luns, 5726 &dev_attr_lpfc_enable_npiv, 5727 &dev_attr_lpfc_fcf_failover_policy, 5728 &dev_attr_lpfc_enable_rrq, 5729 &dev_attr_nport_evt_cnt, 5730 &dev_attr_board_mode, 5731 &dev_attr_max_vpi, 5732 &dev_attr_used_vpi, 5733 &dev_attr_max_rpi, 5734 &dev_attr_used_rpi, 5735 &dev_attr_max_xri, 5736 &dev_attr_used_xri, 5737 &dev_attr_npiv_info, 5738 &dev_attr_issue_reset, 5739 &dev_attr_lpfc_poll, 5740 &dev_attr_lpfc_poll_tmo, 5741 &dev_attr_lpfc_task_mgmt_tmo, 5742 &dev_attr_lpfc_use_msi, 5743 &dev_attr_lpfc_nvme_oas, 5744 &dev_attr_lpfc_nvme_embed_cmd, 5745 &dev_attr_lpfc_auto_imax, 5746 &dev_attr_lpfc_fcp_imax, 5747 &dev_attr_lpfc_fcp_cpu_map, 5748 &dev_attr_lpfc_fcp_io_channel, 5749 &dev_attr_lpfc_suppress_rsp, 5750 &dev_attr_lpfc_nvme_io_channel, 5751 &dev_attr_lpfc_nvmet_mrq, 5752 &dev_attr_lpfc_nvmet_mrq_post, 5753 &dev_attr_lpfc_nvme_enable_fb, 5754 &dev_attr_lpfc_nvmet_fb_size, 5755 &dev_attr_lpfc_enable_bg, 5756 &dev_attr_lpfc_soft_wwnn, 5757 &dev_attr_lpfc_soft_wwpn, 5758 &dev_attr_lpfc_soft_wwn_enable, 5759 &dev_attr_lpfc_enable_hba_reset, 5760 &dev_attr_lpfc_enable_hba_heartbeat, 5761 &dev_attr_lpfc_EnableXLane, 5762 &dev_attr_lpfc_XLanePriority, 5763 &dev_attr_lpfc_xlane_lun, 5764 &dev_attr_lpfc_xlane_tgt, 5765 &dev_attr_lpfc_xlane_vpt, 5766 &dev_attr_lpfc_xlane_lun_state, 5767 &dev_attr_lpfc_xlane_lun_status, 5768 &dev_attr_lpfc_xlane_priority, 5769 &dev_attr_lpfc_sg_seg_cnt, 5770 &dev_attr_lpfc_max_scsicmpl_time, 5771 &dev_attr_lpfc_stat_data_ctrl, 5772 &dev_attr_lpfc_aer_support, 5773 &dev_attr_lpfc_aer_state_cleanup, 5774 &dev_attr_lpfc_sriov_nr_virtfn, 5775 &dev_attr_lpfc_req_fw_upgrade, 5776 &dev_attr_lpfc_suppress_link_up, 5777 &dev_attr_lpfc_iocb_cnt, 5778 &dev_attr_iocb_hw, 5779 &dev_attr_txq_hw, 5780 &dev_attr_txcmplq_hw, 5781 &dev_attr_lpfc_fips_level, 5782 &dev_attr_lpfc_fips_rev, 5783 &dev_attr_lpfc_dss, 5784 &dev_attr_lpfc_sriov_hw_max_virtfn, 5785 &dev_attr_protocol, 5786 &dev_attr_lpfc_xlane_supported, 5787 &dev_attr_lpfc_enable_mds_diags, 5788 &dev_attr_lpfc_ras_fwlog_buffsize, 5789 &dev_attr_lpfc_ras_fwlog_level, 5790 &dev_attr_lpfc_ras_fwlog_func, 5791 &dev_attr_lpfc_enable_bbcr, 5792 &dev_attr_lpfc_enable_dpp, 5793 NULL, 5794 }; 5795 5796 struct device_attribute *lpfc_vport_attrs[] = { 5797 &dev_attr_info, 5798 &dev_attr_link_state, 5799 &dev_attr_num_discovered_ports, 5800 &dev_attr_lpfc_drvr_version, 5801 &dev_attr_lpfc_log_verbose, 5802 &dev_attr_lpfc_lun_queue_depth, 5803 &dev_attr_lpfc_tgt_queue_depth, 5804 &dev_attr_lpfc_nodev_tmo, 5805 &dev_attr_lpfc_devloss_tmo, 5806 &dev_attr_lpfc_hba_queue_depth, 5807 &dev_attr_lpfc_peer_port_login, 5808 &dev_attr_lpfc_restrict_login, 5809 &dev_attr_lpfc_fcp_class, 5810 &dev_attr_lpfc_use_adisc, 5811 &dev_attr_lpfc_first_burst_size, 5812 &dev_attr_lpfc_max_luns, 5813 &dev_attr_nport_evt_cnt, 5814 &dev_attr_npiv_info, 5815 &dev_attr_lpfc_enable_da_id, 5816 &dev_attr_lpfc_max_scsicmpl_time, 5817 &dev_attr_lpfc_stat_data_ctrl, 5818 &dev_attr_lpfc_static_vport, 5819 &dev_attr_lpfc_fips_level, 5820 &dev_attr_lpfc_fips_rev, 5821 NULL, 5822 }; 5823 5824 /** 5825 * sysfs_ctlreg_write - Write method for writing to ctlreg 5826 * @filp: open sysfs file 5827 * @kobj: kernel kobject that contains the kernel class device. 5828 * @bin_attr: kernel attributes passed to us. 5829 * @buf: contains the data to be written to the adapter IOREG space. 5830 * @off: offset into buffer to beginning of data. 5831 * @count: bytes to transfer. 5832 * 5833 * Description: 5834 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5835 * Uses the adapter io control registers to send buf contents to the adapter. 5836 * 5837 * Returns: 5838 * -ERANGE off and count combo out of range 5839 * -EINVAL off, count or buff address invalid 5840 * -EPERM adapter is offline 5841 * value of count, buf contents written 5842 **/ 5843 static ssize_t 5844 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 5845 struct bin_attribute *bin_attr, 5846 char *buf, loff_t off, size_t count) 5847 { 5848 size_t buf_off; 5849 struct device *dev = container_of(kobj, struct device, kobj); 5850 struct Scsi_Host *shost = class_to_shost(dev); 5851 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5852 struct lpfc_hba *phba = vport->phba; 5853 5854 if (phba->sli_rev >= LPFC_SLI_REV4) 5855 return -EPERM; 5856 5857 if ((off + count) > FF_REG_AREA_SIZE) 5858 return -ERANGE; 5859 5860 if (count <= LPFC_REG_WRITE_KEY_SIZE) 5861 return 0; 5862 5863 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5864 return -EINVAL; 5865 5866 /* This is to protect HBA registers from accidental writes. */ 5867 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 5868 return -EINVAL; 5869 5870 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 5871 return -EPERM; 5872 5873 spin_lock_irq(&phba->hbalock); 5874 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 5875 buf_off += sizeof(uint32_t)) 5876 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 5877 phba->ctrl_regs_memmap_p + off + buf_off); 5878 5879 spin_unlock_irq(&phba->hbalock); 5880 5881 return count; 5882 } 5883 5884 /** 5885 * sysfs_ctlreg_read - Read method for reading from ctlreg 5886 * @filp: open sysfs file 5887 * @kobj: kernel kobject that contains the kernel class device. 5888 * @bin_attr: kernel attributes passed to us. 5889 * @buf: if successful contains the data from the adapter IOREG space. 5890 * @off: offset into buffer to beginning of data. 5891 * @count: bytes to transfer. 5892 * 5893 * Description: 5894 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5895 * Uses the adapter io control registers to read data into buf. 5896 * 5897 * Returns: 5898 * -ERANGE off and count combo out of range 5899 * -EINVAL off, count or buff address invalid 5900 * value of count, buf contents read 5901 **/ 5902 static ssize_t 5903 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 5904 struct bin_attribute *bin_attr, 5905 char *buf, loff_t off, size_t count) 5906 { 5907 size_t buf_off; 5908 uint32_t * tmp_ptr; 5909 struct device *dev = container_of(kobj, struct device, kobj); 5910 struct Scsi_Host *shost = class_to_shost(dev); 5911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5912 struct lpfc_hba *phba = vport->phba; 5913 5914 if (phba->sli_rev >= LPFC_SLI_REV4) 5915 return -EPERM; 5916 5917 if (off > FF_REG_AREA_SIZE) 5918 return -ERANGE; 5919 5920 if ((off + count) > FF_REG_AREA_SIZE) 5921 count = FF_REG_AREA_SIZE - off; 5922 5923 if (count == 0) return 0; 5924 5925 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5926 return -EINVAL; 5927 5928 spin_lock_irq(&phba->hbalock); 5929 5930 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 5931 tmp_ptr = (uint32_t *)(buf + buf_off); 5932 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 5933 } 5934 5935 spin_unlock_irq(&phba->hbalock); 5936 5937 return count; 5938 } 5939 5940 static struct bin_attribute sysfs_ctlreg_attr = { 5941 .attr = { 5942 .name = "ctlreg", 5943 .mode = S_IRUSR | S_IWUSR, 5944 }, 5945 .size = 256, 5946 .read = sysfs_ctlreg_read, 5947 .write = sysfs_ctlreg_write, 5948 }; 5949 5950 /** 5951 * sysfs_mbox_write - Write method for writing information via mbox 5952 * @filp: open sysfs file 5953 * @kobj: kernel kobject that contains the kernel class device. 5954 * @bin_attr: kernel attributes passed to us. 5955 * @buf: contains the data to be written to sysfs mbox. 5956 * @off: offset into buffer to beginning of data. 5957 * @count: bytes to transfer. 5958 * 5959 * Description: 5960 * Deprecated function. All mailbox access from user space is performed via the 5961 * bsg interface. 5962 * 5963 * Returns: 5964 * -EPERM operation not permitted 5965 **/ 5966 static ssize_t 5967 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 5968 struct bin_attribute *bin_attr, 5969 char *buf, loff_t off, size_t count) 5970 { 5971 return -EPERM; 5972 } 5973 5974 /** 5975 * sysfs_mbox_read - Read method for reading information via mbox 5976 * @filp: open sysfs file 5977 * @kobj: kernel kobject that contains the kernel class device. 5978 * @bin_attr: kernel attributes passed to us. 5979 * @buf: contains the data to be read from sysfs mbox. 5980 * @off: offset into buffer to beginning of data. 5981 * @count: bytes to transfer. 5982 * 5983 * Description: 5984 * Deprecated function. All mailbox access from user space is performed via the 5985 * bsg interface. 5986 * 5987 * Returns: 5988 * -EPERM operation not permitted 5989 **/ 5990 static ssize_t 5991 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 5992 struct bin_attribute *bin_attr, 5993 char *buf, loff_t off, size_t count) 5994 { 5995 return -EPERM; 5996 } 5997 5998 static struct bin_attribute sysfs_mbox_attr = { 5999 .attr = { 6000 .name = "mbox", 6001 .mode = S_IRUSR | S_IWUSR, 6002 }, 6003 .size = MAILBOX_SYSFS_MAX, 6004 .read = sysfs_mbox_read, 6005 .write = sysfs_mbox_write, 6006 }; 6007 6008 /** 6009 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6010 * @vport: address of lpfc vport structure. 6011 * 6012 * Return codes: 6013 * zero on success 6014 * error return code from sysfs_create_bin_file() 6015 **/ 6016 int 6017 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6018 { 6019 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6020 int error; 6021 6022 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6023 &sysfs_drvr_stat_data_attr); 6024 6025 /* Virtual ports do not need ctrl_reg and mbox */ 6026 if (error || vport->port_type == LPFC_NPIV_PORT) 6027 goto out; 6028 6029 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6030 &sysfs_ctlreg_attr); 6031 if (error) 6032 goto out_remove_stat_attr; 6033 6034 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6035 &sysfs_mbox_attr); 6036 if (error) 6037 goto out_remove_ctlreg_attr; 6038 6039 return 0; 6040 out_remove_ctlreg_attr: 6041 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6042 out_remove_stat_attr: 6043 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6044 &sysfs_drvr_stat_data_attr); 6045 out: 6046 return error; 6047 } 6048 6049 /** 6050 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6051 * @vport: address of lpfc vport structure. 6052 **/ 6053 void 6054 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6055 { 6056 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6057 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6058 &sysfs_drvr_stat_data_attr); 6059 /* Virtual ports do not need ctrl_reg and mbox */ 6060 if (vport->port_type == LPFC_NPIV_PORT) 6061 return; 6062 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6063 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6064 } 6065 6066 /* 6067 * Dynamic FC Host Attributes Support 6068 */ 6069 6070 /** 6071 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6072 * @shost: kernel scsi host pointer. 6073 **/ 6074 static void 6075 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6076 { 6077 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6078 6079 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6080 sizeof fc_host_symbolic_name(shost)); 6081 } 6082 6083 /** 6084 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6085 * @shost: kernel scsi host pointer. 6086 **/ 6087 static void 6088 lpfc_get_host_port_id(struct Scsi_Host *shost) 6089 { 6090 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6091 6092 /* note: fc_myDID already in cpu endianness */ 6093 fc_host_port_id(shost) = vport->fc_myDID; 6094 } 6095 6096 /** 6097 * lpfc_get_host_port_type - Set the value of the scsi host port type 6098 * @shost: kernel scsi host pointer. 6099 **/ 6100 static void 6101 lpfc_get_host_port_type(struct Scsi_Host *shost) 6102 { 6103 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6104 struct lpfc_hba *phba = vport->phba; 6105 6106 spin_lock_irq(shost->host_lock); 6107 6108 if (vport->port_type == LPFC_NPIV_PORT) { 6109 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6110 } else if (lpfc_is_link_up(phba)) { 6111 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6112 if (vport->fc_flag & FC_PUBLIC_LOOP) 6113 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6114 else 6115 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6116 } else { 6117 if (vport->fc_flag & FC_FABRIC) 6118 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6119 else 6120 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6121 } 6122 } else 6123 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6124 6125 spin_unlock_irq(shost->host_lock); 6126 } 6127 6128 /** 6129 * lpfc_get_host_port_state - Set the value of the scsi host port state 6130 * @shost: kernel scsi host pointer. 6131 **/ 6132 static void 6133 lpfc_get_host_port_state(struct Scsi_Host *shost) 6134 { 6135 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6136 struct lpfc_hba *phba = vport->phba; 6137 6138 spin_lock_irq(shost->host_lock); 6139 6140 if (vport->fc_flag & FC_OFFLINE_MODE) 6141 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6142 else { 6143 switch (phba->link_state) { 6144 case LPFC_LINK_UNKNOWN: 6145 case LPFC_LINK_DOWN: 6146 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6147 break; 6148 case LPFC_LINK_UP: 6149 case LPFC_CLEAR_LA: 6150 case LPFC_HBA_READY: 6151 /* Links up, reports port state accordingly */ 6152 if (vport->port_state < LPFC_VPORT_READY) 6153 fc_host_port_state(shost) = 6154 FC_PORTSTATE_BYPASSED; 6155 else 6156 fc_host_port_state(shost) = 6157 FC_PORTSTATE_ONLINE; 6158 break; 6159 case LPFC_HBA_ERROR: 6160 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6161 break; 6162 default: 6163 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6164 break; 6165 } 6166 } 6167 6168 spin_unlock_irq(shost->host_lock); 6169 } 6170 6171 /** 6172 * lpfc_get_host_speed - Set the value of the scsi host speed 6173 * @shost: kernel scsi host pointer. 6174 **/ 6175 static void 6176 lpfc_get_host_speed(struct Scsi_Host *shost) 6177 { 6178 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6179 struct lpfc_hba *phba = vport->phba; 6180 6181 spin_lock_irq(shost->host_lock); 6182 6183 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6184 switch(phba->fc_linkspeed) { 6185 case LPFC_LINK_SPEED_1GHZ: 6186 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6187 break; 6188 case LPFC_LINK_SPEED_2GHZ: 6189 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6190 break; 6191 case LPFC_LINK_SPEED_4GHZ: 6192 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6193 break; 6194 case LPFC_LINK_SPEED_8GHZ: 6195 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6196 break; 6197 case LPFC_LINK_SPEED_10GHZ: 6198 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6199 break; 6200 case LPFC_LINK_SPEED_16GHZ: 6201 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6202 break; 6203 case LPFC_LINK_SPEED_32GHZ: 6204 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6205 break; 6206 case LPFC_LINK_SPEED_64GHZ: 6207 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6208 break; 6209 case LPFC_LINK_SPEED_128GHZ: 6210 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6211 break; 6212 default: 6213 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6214 break; 6215 } 6216 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6217 switch (phba->fc_linkspeed) { 6218 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6219 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6220 break; 6221 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6222 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6223 break; 6224 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6225 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6226 break; 6227 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6228 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6229 break; 6230 default: 6231 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6232 break; 6233 } 6234 } else 6235 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6236 6237 spin_unlock_irq(shost->host_lock); 6238 } 6239 6240 /** 6241 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6242 * @shost: kernel scsi host pointer. 6243 **/ 6244 static void 6245 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6246 { 6247 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6248 struct lpfc_hba *phba = vport->phba; 6249 u64 node_name; 6250 6251 spin_lock_irq(shost->host_lock); 6252 6253 if ((vport->port_state > LPFC_FLOGI) && 6254 ((vport->fc_flag & FC_FABRIC) || 6255 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6256 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6257 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6258 else 6259 /* fabric is local port if there is no F/FL_Port */ 6260 node_name = 0; 6261 6262 spin_unlock_irq(shost->host_lock); 6263 6264 fc_host_fabric_name(shost) = node_name; 6265 } 6266 6267 /** 6268 * lpfc_get_stats - Return statistical information about the adapter 6269 * @shost: kernel scsi host pointer. 6270 * 6271 * Notes: 6272 * NULL on error for link down, no mbox pool, sli2 active, 6273 * management not allowed, memory allocation error, or mbox error. 6274 * 6275 * Returns: 6276 * NULL for error 6277 * address of the adapter host statistics 6278 **/ 6279 static struct fc_host_statistics * 6280 lpfc_get_stats(struct Scsi_Host *shost) 6281 { 6282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6283 struct lpfc_hba *phba = vport->phba; 6284 struct lpfc_sli *psli = &phba->sli; 6285 struct fc_host_statistics *hs = &phba->link_stats; 6286 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6287 LPFC_MBOXQ_t *pmboxq; 6288 MAILBOX_t *pmb; 6289 int rc = 0; 6290 6291 /* 6292 * prevent udev from issuing mailbox commands until the port is 6293 * configured. 6294 */ 6295 if (phba->link_state < LPFC_LINK_DOWN || 6296 !phba->mbox_mem_pool || 6297 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6298 return NULL; 6299 6300 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6301 return NULL; 6302 6303 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6304 if (!pmboxq) 6305 return NULL; 6306 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6307 6308 pmb = &pmboxq->u.mb; 6309 pmb->mbxCommand = MBX_READ_STATUS; 6310 pmb->mbxOwner = OWN_HOST; 6311 pmboxq->ctx_buf = NULL; 6312 pmboxq->vport = vport; 6313 6314 if (vport->fc_flag & FC_OFFLINE_MODE) 6315 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6316 else 6317 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6318 6319 if (rc != MBX_SUCCESS) { 6320 if (rc != MBX_TIMEOUT) 6321 mempool_free(pmboxq, phba->mbox_mem_pool); 6322 return NULL; 6323 } 6324 6325 memset(hs, 0, sizeof (struct fc_host_statistics)); 6326 6327 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6328 /* 6329 * The MBX_READ_STATUS returns tx_k_bytes which has to 6330 * converted to words 6331 */ 6332 hs->tx_words = (uint64_t) 6333 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6334 * (uint64_t)256); 6335 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6336 hs->rx_words = (uint64_t) 6337 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6338 * (uint64_t)256); 6339 6340 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6341 pmb->mbxCommand = MBX_READ_LNK_STAT; 6342 pmb->mbxOwner = OWN_HOST; 6343 pmboxq->ctx_buf = NULL; 6344 pmboxq->vport = vport; 6345 6346 if (vport->fc_flag & FC_OFFLINE_MODE) 6347 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6348 else 6349 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6350 6351 if (rc != MBX_SUCCESS) { 6352 if (rc != MBX_TIMEOUT) 6353 mempool_free(pmboxq, phba->mbox_mem_pool); 6354 return NULL; 6355 } 6356 6357 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6358 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6359 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6360 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6361 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6362 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6363 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6364 6365 hs->link_failure_count -= lso->link_failure_count; 6366 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6367 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6368 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6369 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6370 hs->invalid_crc_count -= lso->invalid_crc_count; 6371 hs->error_frames -= lso->error_frames; 6372 6373 if (phba->hba_flag & HBA_FCOE_MODE) { 6374 hs->lip_count = -1; 6375 hs->nos_count = (phba->link_events >> 1); 6376 hs->nos_count -= lso->link_events; 6377 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6378 hs->lip_count = (phba->fc_eventTag >> 1); 6379 hs->lip_count -= lso->link_events; 6380 hs->nos_count = -1; 6381 } else { 6382 hs->lip_count = -1; 6383 hs->nos_count = (phba->fc_eventTag >> 1); 6384 hs->nos_count -= lso->link_events; 6385 } 6386 6387 hs->dumped_frames = -1; 6388 6389 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6390 6391 mempool_free(pmboxq, phba->mbox_mem_pool); 6392 6393 return hs; 6394 } 6395 6396 /** 6397 * lpfc_reset_stats - Copy the adapter link stats information 6398 * @shost: kernel scsi host pointer. 6399 **/ 6400 static void 6401 lpfc_reset_stats(struct Scsi_Host *shost) 6402 { 6403 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6404 struct lpfc_hba *phba = vport->phba; 6405 struct lpfc_sli *psli = &phba->sli; 6406 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6407 LPFC_MBOXQ_t *pmboxq; 6408 MAILBOX_t *pmb; 6409 int rc = 0; 6410 6411 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6412 return; 6413 6414 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6415 if (!pmboxq) 6416 return; 6417 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6418 6419 pmb = &pmboxq->u.mb; 6420 pmb->mbxCommand = MBX_READ_STATUS; 6421 pmb->mbxOwner = OWN_HOST; 6422 pmb->un.varWords[0] = 0x1; /* reset request */ 6423 pmboxq->ctx_buf = NULL; 6424 pmboxq->vport = vport; 6425 6426 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6427 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6428 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6429 else 6430 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6431 6432 if (rc != MBX_SUCCESS) { 6433 if (rc != MBX_TIMEOUT) 6434 mempool_free(pmboxq, phba->mbox_mem_pool); 6435 return; 6436 } 6437 6438 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6439 pmb->mbxCommand = MBX_READ_LNK_STAT; 6440 pmb->mbxOwner = OWN_HOST; 6441 pmboxq->ctx_buf = NULL; 6442 pmboxq->vport = vport; 6443 6444 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6445 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6446 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6447 else 6448 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6449 6450 if (rc != MBX_SUCCESS) { 6451 if (rc != MBX_TIMEOUT) 6452 mempool_free( pmboxq, phba->mbox_mem_pool); 6453 return; 6454 } 6455 6456 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6457 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6458 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6459 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6460 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6461 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6462 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6463 if (phba->hba_flag & HBA_FCOE_MODE) 6464 lso->link_events = (phba->link_events >> 1); 6465 else 6466 lso->link_events = (phba->fc_eventTag >> 1); 6467 6468 psli->stats_start = ktime_get_seconds(); 6469 6470 mempool_free(pmboxq, phba->mbox_mem_pool); 6471 6472 return; 6473 } 6474 6475 /* 6476 * The LPFC driver treats linkdown handling as target loss events so there 6477 * are no sysfs handlers for link_down_tmo. 6478 */ 6479 6480 /** 6481 * lpfc_get_node_by_target - Return the nodelist for a target 6482 * @starget: kernel scsi target pointer. 6483 * 6484 * Returns: 6485 * address of the node list if found 6486 * NULL target not found 6487 **/ 6488 static struct lpfc_nodelist * 6489 lpfc_get_node_by_target(struct scsi_target *starget) 6490 { 6491 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6492 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6493 struct lpfc_nodelist *ndlp; 6494 6495 spin_lock_irq(shost->host_lock); 6496 /* Search for this, mapped, target ID */ 6497 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6498 if (NLP_CHK_NODE_ACT(ndlp) && 6499 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6500 starget->id == ndlp->nlp_sid) { 6501 spin_unlock_irq(shost->host_lock); 6502 return ndlp; 6503 } 6504 } 6505 spin_unlock_irq(shost->host_lock); 6506 return NULL; 6507 } 6508 6509 /** 6510 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6511 * @starget: kernel scsi target pointer. 6512 **/ 6513 static void 6514 lpfc_get_starget_port_id(struct scsi_target *starget) 6515 { 6516 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6517 6518 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6519 } 6520 6521 /** 6522 * lpfc_get_starget_node_name - Set the target node name 6523 * @starget: kernel scsi target pointer. 6524 * 6525 * Description: Set the target node name to the ndlp node name wwn or zero. 6526 **/ 6527 static void 6528 lpfc_get_starget_node_name(struct scsi_target *starget) 6529 { 6530 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6531 6532 fc_starget_node_name(starget) = 6533 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6534 } 6535 6536 /** 6537 * lpfc_get_starget_port_name - Set the target port name 6538 * @starget: kernel scsi target pointer. 6539 * 6540 * Description: set the target port name to the ndlp port name wwn or zero. 6541 **/ 6542 static void 6543 lpfc_get_starget_port_name(struct scsi_target *starget) 6544 { 6545 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6546 6547 fc_starget_port_name(starget) = 6548 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6549 } 6550 6551 /** 6552 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6553 * @rport: fc rport address. 6554 * @timeout: new value for dev loss tmo. 6555 * 6556 * Description: 6557 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6558 * dev_loss_tmo to one. 6559 **/ 6560 static void 6561 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6562 { 6563 if (timeout) 6564 rport->dev_loss_tmo = timeout; 6565 else 6566 rport->dev_loss_tmo = 1; 6567 } 6568 6569 /** 6570 * lpfc_rport_show_function - Return rport target information 6571 * 6572 * Description: 6573 * Macro that uses field to generate a function with the name lpfc_show_rport_ 6574 * 6575 * lpfc_show_rport_##field: returns the bytes formatted in buf 6576 * @cdev: class converted to an fc_rport. 6577 * @buf: on return contains the target_field or zero. 6578 * 6579 * Returns: size of formatted string. 6580 **/ 6581 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 6582 static ssize_t \ 6583 lpfc_show_rport_##field (struct device *dev, \ 6584 struct device_attribute *attr, \ 6585 char *buf) \ 6586 { \ 6587 struct fc_rport *rport = transport_class_to_rport(dev); \ 6588 struct lpfc_rport_data *rdata = rport->hostdata; \ 6589 return snprintf(buf, sz, format_string, \ 6590 (rdata->target) ? cast rdata->target->field : 0); \ 6591 } 6592 6593 #define lpfc_rport_rd_attr(field, format_string, sz) \ 6594 lpfc_rport_show_function(field, format_string, sz, ) \ 6595 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6596 6597 /** 6598 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 6599 * @fc_vport: The fc_vport who's symbolic name has been changed. 6600 * 6601 * Description: 6602 * This function is called by the transport after the @fc_vport's symbolic name 6603 * has been changed. This function re-registers the symbolic name with the 6604 * switch to propagate the change into the fabric if the vport is active. 6605 **/ 6606 static void 6607 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 6608 { 6609 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 6610 6611 if (vport->port_state == LPFC_VPORT_READY) 6612 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 6613 } 6614 6615 /** 6616 * lpfc_hba_log_verbose_init - Set hba's log verbose level 6617 * @phba: Pointer to lpfc_hba struct. 6618 * 6619 * This function is called by the lpfc_get_cfgparam() routine to set the 6620 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 6621 * log message according to the module's lpfc_log_verbose parameter setting 6622 * before hba port or vport created. 6623 **/ 6624 static void 6625 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 6626 { 6627 phba->cfg_log_verbose = verbose; 6628 } 6629 6630 struct fc_function_template lpfc_transport_functions = { 6631 /* fixed attributes the driver supports */ 6632 .show_host_node_name = 1, 6633 .show_host_port_name = 1, 6634 .show_host_supported_classes = 1, 6635 .show_host_supported_fc4s = 1, 6636 .show_host_supported_speeds = 1, 6637 .show_host_maxframe_size = 1, 6638 6639 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6640 .show_host_symbolic_name = 1, 6641 6642 /* dynamic attributes the driver supports */ 6643 .get_host_port_id = lpfc_get_host_port_id, 6644 .show_host_port_id = 1, 6645 6646 .get_host_port_type = lpfc_get_host_port_type, 6647 .show_host_port_type = 1, 6648 6649 .get_host_port_state = lpfc_get_host_port_state, 6650 .show_host_port_state = 1, 6651 6652 /* active_fc4s is shown but doesn't change (thus no get function) */ 6653 .show_host_active_fc4s = 1, 6654 6655 .get_host_speed = lpfc_get_host_speed, 6656 .show_host_speed = 1, 6657 6658 .get_host_fabric_name = lpfc_get_host_fabric_name, 6659 .show_host_fabric_name = 1, 6660 6661 /* 6662 * The LPFC driver treats linkdown handling as target loss events 6663 * so there are no sysfs handlers for link_down_tmo. 6664 */ 6665 6666 .get_fc_host_stats = lpfc_get_stats, 6667 .reset_fc_host_stats = lpfc_reset_stats, 6668 6669 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6670 .show_rport_maxframe_size = 1, 6671 .show_rport_supported_classes = 1, 6672 6673 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6674 .show_rport_dev_loss_tmo = 1, 6675 6676 .get_starget_port_id = lpfc_get_starget_port_id, 6677 .show_starget_port_id = 1, 6678 6679 .get_starget_node_name = lpfc_get_starget_node_name, 6680 .show_starget_node_name = 1, 6681 6682 .get_starget_port_name = lpfc_get_starget_port_name, 6683 .show_starget_port_name = 1, 6684 6685 .issue_fc_host_lip = lpfc_issue_lip, 6686 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6687 .terminate_rport_io = lpfc_terminate_rport_io, 6688 6689 .dd_fcvport_size = sizeof(struct lpfc_vport *), 6690 6691 .vport_disable = lpfc_vport_disable, 6692 6693 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6694 6695 .bsg_request = lpfc_bsg_request, 6696 .bsg_timeout = lpfc_bsg_timeout, 6697 }; 6698 6699 struct fc_function_template lpfc_vport_transport_functions = { 6700 /* fixed attributes the driver supports */ 6701 .show_host_node_name = 1, 6702 .show_host_port_name = 1, 6703 .show_host_supported_classes = 1, 6704 .show_host_supported_fc4s = 1, 6705 .show_host_supported_speeds = 1, 6706 .show_host_maxframe_size = 1, 6707 6708 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6709 .show_host_symbolic_name = 1, 6710 6711 /* dynamic attributes the driver supports */ 6712 .get_host_port_id = lpfc_get_host_port_id, 6713 .show_host_port_id = 1, 6714 6715 .get_host_port_type = lpfc_get_host_port_type, 6716 .show_host_port_type = 1, 6717 6718 .get_host_port_state = lpfc_get_host_port_state, 6719 .show_host_port_state = 1, 6720 6721 /* active_fc4s is shown but doesn't change (thus no get function) */ 6722 .show_host_active_fc4s = 1, 6723 6724 .get_host_speed = lpfc_get_host_speed, 6725 .show_host_speed = 1, 6726 6727 .get_host_fabric_name = lpfc_get_host_fabric_name, 6728 .show_host_fabric_name = 1, 6729 6730 /* 6731 * The LPFC driver treats linkdown handling as target loss events 6732 * so there are no sysfs handlers for link_down_tmo. 6733 */ 6734 6735 .get_fc_host_stats = lpfc_get_stats, 6736 .reset_fc_host_stats = lpfc_reset_stats, 6737 6738 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6739 .show_rport_maxframe_size = 1, 6740 .show_rport_supported_classes = 1, 6741 6742 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6743 .show_rport_dev_loss_tmo = 1, 6744 6745 .get_starget_port_id = lpfc_get_starget_port_id, 6746 .show_starget_port_id = 1, 6747 6748 .get_starget_node_name = lpfc_get_starget_node_name, 6749 .show_starget_node_name = 1, 6750 6751 .get_starget_port_name = lpfc_get_starget_port_name, 6752 .show_starget_port_name = 1, 6753 6754 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6755 .terminate_rport_io = lpfc_terminate_rport_io, 6756 6757 .vport_disable = lpfc_vport_disable, 6758 6759 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6760 }; 6761 6762 /** 6763 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 6764 * @phba: lpfc_hba pointer. 6765 **/ 6766 void 6767 lpfc_get_cfgparam(struct lpfc_hba *phba) 6768 { 6769 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 6770 lpfc_ns_query_init(phba, lpfc_ns_query); 6771 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 6772 lpfc_cr_delay_init(phba, lpfc_cr_delay); 6773 lpfc_cr_count_init(phba, lpfc_cr_count); 6774 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 6775 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 6776 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 6777 lpfc_ack0_init(phba, lpfc_ack0); 6778 lpfc_topology_init(phba, lpfc_topology); 6779 lpfc_link_speed_init(phba, lpfc_link_speed); 6780 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 6781 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 6782 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 6783 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 6784 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 6785 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 6786 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 6787 lpfc_use_msi_init(phba, lpfc_use_msi); 6788 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 6789 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 6790 lpfc_auto_imax_init(phba, lpfc_auto_imax); 6791 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 6792 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 6793 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 6794 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 6795 6796 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 6797 if (phba->sli_rev != LPFC_SLI_REV4) 6798 phba->cfg_EnableXLane = 0; 6799 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 6800 6801 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 6802 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 6803 phba->cfg_oas_lun_state = 0; 6804 phba->cfg_oas_lun_status = 0; 6805 phba->cfg_oas_flags = 0; 6806 phba->cfg_oas_priority = 0; 6807 lpfc_enable_bg_init(phba, lpfc_enable_bg); 6808 lpfc_prot_mask_init(phba, lpfc_prot_mask); 6809 lpfc_prot_guard_init(phba, lpfc_prot_guard); 6810 if (phba->sli_rev == LPFC_SLI_REV4) 6811 phba->cfg_poll = 0; 6812 else 6813 phba->cfg_poll = lpfc_poll; 6814 6815 if (phba->cfg_enable_bg) 6816 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 6817 6818 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 6819 6820 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 6821 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 6822 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 6823 6824 /* Initialize first burst. Target vs Initiator are different. */ 6825 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 6826 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 6827 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel); 6828 lpfc_nvme_io_channel_init(phba, lpfc_nvme_io_channel); 6829 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 6830 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 6831 6832 if (phba->sli_rev != LPFC_SLI_REV4) { 6833 /* NVME only supported on SLI4 */ 6834 phba->nvmet_support = 0; 6835 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 6836 phba->cfg_enable_bbcr = 0; 6837 } else { 6838 /* We MUST have FCP support */ 6839 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 6840 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 6841 } 6842 6843 if (phba->cfg_auto_imax && !phba->cfg_fcp_imax) 6844 phba->cfg_auto_imax = 0; 6845 phba->initial_imax = phba->cfg_fcp_imax; 6846 6847 phba->cfg_enable_pbde = 0; 6848 6849 /* A value of 0 means use the number of CPUs found in the system */ 6850 if (phba->cfg_fcp_io_channel == 0) 6851 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6852 if (phba->cfg_nvme_io_channel == 0) 6853 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6854 6855 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 6856 phba->cfg_fcp_io_channel = 0; 6857 6858 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) 6859 phba->cfg_nvme_io_channel = 0; 6860 6861 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6862 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6863 else 6864 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6865 6866 phba->cfg_soft_wwnn = 0L; 6867 phba->cfg_soft_wwpn = 0L; 6868 lpfc_xri_split_init(phba, lpfc_xri_split); 6869 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 6870 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 6871 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 6872 lpfc_aer_support_init(phba, lpfc_aer_support); 6873 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 6874 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 6875 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 6876 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); 6877 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 6878 lpfc_sli_mode_init(phba, lpfc_sli_mode); 6879 phba->cfg_enable_dss = 1; 6880 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 6881 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 6882 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 6883 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 6884 6885 6886 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to 6887 * accommodate 512K and 1M IOs in a single nvme buf and supply 6888 * enough NVME LS iocb buffers for larger connectivity counts. 6889 */ 6890 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 6891 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 6892 phba->cfg_iocb_cnt = 5; 6893 } 6894 6895 return; 6896 } 6897 6898 /** 6899 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 6900 * dependencies between protocols and roles. 6901 * @phba: lpfc_hba pointer. 6902 **/ 6903 void 6904 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 6905 { 6906 if (phba->cfg_nvme_io_channel > phba->sli4_hba.num_present_cpu) 6907 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6908 6909 if (phba->cfg_fcp_io_channel > phba->sli4_hba.num_present_cpu) 6910 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6911 6912 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 6913 phba->nvmet_support) { 6914 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 6915 phba->cfg_fcp_io_channel = 0; 6916 6917 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 6918 "6013 %s x%x fb_size x%x, fb_max x%x\n", 6919 "NVME Target PRLI ACC enable_fb ", 6920 phba->cfg_nvme_enable_fb, 6921 phba->cfg_nvmet_fb_size, 6922 LPFC_NVMET_FB_SZ_MAX); 6923 6924 if (phba->cfg_nvme_enable_fb == 0) 6925 phba->cfg_nvmet_fb_size = 0; 6926 else { 6927 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 6928 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 6929 } 6930 6931 if (!phba->cfg_nvmet_mrq) 6932 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 6933 6934 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 6935 if (phba->cfg_nvmet_mrq > phba->cfg_nvme_io_channel) { 6936 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 6937 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 6938 "6018 Adjust lpfc_nvmet_mrq to %d\n", 6939 phba->cfg_nvmet_mrq); 6940 } 6941 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 6942 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 6943 6944 } else { 6945 /* Not NVME Target mode. Turn off Target parameters. */ 6946 phba->nvmet_support = 0; 6947 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF; 6948 phba->cfg_nvmet_fb_size = 0; 6949 } 6950 6951 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6952 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6953 else 6954 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6955 } 6956 6957 /** 6958 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 6959 * @vport: lpfc_vport pointer. 6960 **/ 6961 void 6962 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 6963 { 6964 lpfc_log_verbose_init(vport, lpfc_log_verbose); 6965 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 6966 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 6967 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 6968 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 6969 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 6970 lpfc_restrict_login_init(vport, lpfc_restrict_login); 6971 lpfc_fcp_class_init(vport, lpfc_fcp_class); 6972 lpfc_use_adisc_init(vport, lpfc_use_adisc); 6973 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 6974 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 6975 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 6976 lpfc_max_luns_init(vport, lpfc_max_luns); 6977 lpfc_scan_down_init(vport, lpfc_scan_down); 6978 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 6979 return; 6980 } 6981