1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited 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 /* 68 * Write key size should be multiple of 4. If write key is changed 69 * make sure that library write key is also changed. 70 */ 71 #define LPFC_REG_WRITE_KEY_SIZE 4 72 #define LPFC_REG_WRITE_KEY "EMLX" 73 74 /** 75 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 76 * @incr: integer to convert. 77 * @hdw: ascii string holding converted integer plus a string terminator. 78 * 79 * Description: 80 * JEDEC Joint Electron Device Engineering Council. 81 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 82 * character string. The string is then terminated with a NULL in byte 9. 83 * Hex 0-9 becomes ascii '0' to '9'. 84 * Hex a-f becomes ascii '=' to 'B' capital B. 85 * 86 * Notes: 87 * Coded for 32 bit integers only. 88 **/ 89 static void 90 lpfc_jedec_to_ascii(int incr, char hdw[]) 91 { 92 int i, j; 93 for (i = 0; i < 8; i++) { 94 j = (incr & 0xf); 95 if (j <= 9) 96 hdw[7 - i] = 0x30 + j; 97 else 98 hdw[7 - i] = 0x61 + j - 10; 99 incr = (incr >> 4); 100 } 101 hdw[8] = 0; 102 return; 103 } 104 105 /** 106 * lpfc_drvr_version_show - Return the Emulex driver string with version number 107 * @dev: class unused variable. 108 * @attr: device attribute, not used. 109 * @buf: on return contains the module description text. 110 * 111 * Returns: size of formatted string. 112 **/ 113 static ssize_t 114 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 115 char *buf) 116 { 117 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 118 } 119 120 /** 121 * lpfc_enable_fip_show - Return the fip mode of the HBA 122 * @dev: class unused variable. 123 * @attr: device attribute, not used. 124 * @buf: on return contains the module description text. 125 * 126 * Returns: size of formatted string. 127 **/ 128 static ssize_t 129 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 130 char *buf) 131 { 132 struct Scsi_Host *shost = class_to_shost(dev); 133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 134 struct lpfc_hba *phba = vport->phba; 135 136 if (phba->hba_flag & HBA_FIP_SUPPORT) 137 return snprintf(buf, PAGE_SIZE, "1\n"); 138 else 139 return snprintf(buf, PAGE_SIZE, "0\n"); 140 } 141 142 static ssize_t 143 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 144 char *buf) 145 { 146 struct Scsi_Host *shost = class_to_shost(dev); 147 struct lpfc_vport *vport = shost_priv(shost); 148 struct lpfc_hba *phba = vport->phba; 149 struct lpfc_nvmet_tgtport *tgtp; 150 struct nvme_fc_local_port *localport; 151 struct lpfc_nvme_lport *lport; 152 struct lpfc_nvme_rport *rport; 153 struct nvme_fc_remote_port *nrport; 154 char *statep; 155 int len = 0; 156 157 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 158 len += snprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 159 return len; 160 } 161 if (phba->nvmet_support) { 162 if (!phba->targetport) { 163 len = snprintf(buf, PAGE_SIZE, 164 "NVME Target: x%llx is not allocated\n", 165 wwn_to_u64(vport->fc_portname.u.wwn)); 166 return len; 167 } 168 /* Port state is only one of two values for now. */ 169 if (phba->targetport->port_id) 170 statep = "REGISTERED"; 171 else 172 statep = "INIT"; 173 len += snprintf(buf + len, PAGE_SIZE - len, 174 "NVME Target: Enabled State %s\n", 175 statep); 176 len += snprintf(buf + len, PAGE_SIZE - len, 177 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 178 "NVME Target: lpfc", 179 phba->brd_no, 180 wwn_to_u64(vport->fc_portname.u.wwn), 181 wwn_to_u64(vport->fc_nodename.u.wwn), 182 phba->targetport->port_id); 183 184 len += snprintf(buf + len, PAGE_SIZE - len, 185 "\nNVME Target: Statistics\n"); 186 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 187 len += snprintf(buf+len, PAGE_SIZE-len, 188 "LS: Rcv %08x Drop %08x Abort %08x\n", 189 atomic_read(&tgtp->rcv_ls_req_in), 190 atomic_read(&tgtp->rcv_ls_req_drop), 191 atomic_read(&tgtp->xmt_ls_abort)); 192 if (atomic_read(&tgtp->rcv_ls_req_in) != 193 atomic_read(&tgtp->rcv_ls_req_out)) { 194 len += snprintf(buf+len, PAGE_SIZE-len, 195 "Rcv LS: in %08x != out %08x\n", 196 atomic_read(&tgtp->rcv_ls_req_in), 197 atomic_read(&tgtp->rcv_ls_req_out)); 198 } 199 200 len += snprintf(buf+len, PAGE_SIZE-len, 201 "LS: Xmt %08x Drop %08x Cmpl %08x Err %08x\n", 202 atomic_read(&tgtp->xmt_ls_rsp), 203 atomic_read(&tgtp->xmt_ls_drop), 204 atomic_read(&tgtp->xmt_ls_rsp_cmpl), 205 atomic_read(&tgtp->xmt_ls_rsp_error)); 206 207 len += snprintf(buf+len, PAGE_SIZE-len, 208 "FCP: Rcv %08x Release %08x Drop %08x\n", 209 atomic_read(&tgtp->rcv_fcp_cmd_in), 210 atomic_read(&tgtp->xmt_fcp_release), 211 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 212 213 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 214 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 215 len += snprintf(buf+len, PAGE_SIZE-len, 216 "Rcv FCP: in %08x != out %08x\n", 217 atomic_read(&tgtp->rcv_fcp_cmd_in), 218 atomic_read(&tgtp->rcv_fcp_cmd_out)); 219 } 220 221 len += snprintf(buf+len, PAGE_SIZE-len, 222 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 223 "drop %08x\n", 224 atomic_read(&tgtp->xmt_fcp_read), 225 atomic_read(&tgtp->xmt_fcp_read_rsp), 226 atomic_read(&tgtp->xmt_fcp_write), 227 atomic_read(&tgtp->xmt_fcp_rsp), 228 atomic_read(&tgtp->xmt_fcp_drop)); 229 230 len += snprintf(buf+len, PAGE_SIZE-len, 231 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 232 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 233 atomic_read(&tgtp->xmt_fcp_rsp_error), 234 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 235 236 len += snprintf(buf+len, PAGE_SIZE-len, 237 "ABORT: Xmt %08x Cmpl %08x\n", 238 atomic_read(&tgtp->xmt_fcp_abort), 239 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 240 241 len += snprintf(buf + len, PAGE_SIZE - len, 242 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x", 243 atomic_read(&tgtp->xmt_abort_sol), 244 atomic_read(&tgtp->xmt_abort_unsol), 245 atomic_read(&tgtp->xmt_abort_rsp), 246 atomic_read(&tgtp->xmt_abort_rsp_error)); 247 248 len += snprintf(buf + len, PAGE_SIZE - len, 249 "IO_CTX: %08x outstanding %08x total %x", 250 phba->sli4_hba.nvmet_ctx_cnt, 251 phba->sli4_hba.nvmet_io_wait_cnt, 252 phba->sli4_hba.nvmet_io_wait_total); 253 254 len += snprintf(buf+len, PAGE_SIZE-len, "\n"); 255 return len; 256 } 257 258 localport = vport->localport; 259 if (!localport) { 260 len = snprintf(buf, PAGE_SIZE, 261 "NVME Initiator x%llx is not allocated\n", 262 wwn_to_u64(vport->fc_portname.u.wwn)); 263 return len; 264 } 265 len = snprintf(buf, PAGE_SIZE, "NVME Initiator Enabled\n"); 266 267 spin_lock_irq(shost->host_lock); 268 lport = (struct lpfc_nvme_lport *)localport->private; 269 270 /* Port state is only one of two values for now. */ 271 if (localport->port_id) 272 statep = "ONLINE"; 273 else 274 statep = "UNKNOWN "; 275 276 len += snprintf(buf + len, PAGE_SIZE - len, 277 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 278 "NVME LPORT lpfc", 279 phba->brd_no, 280 wwn_to_u64(vport->fc_portname.u.wwn), 281 wwn_to_u64(vport->fc_nodename.u.wwn), 282 localport->port_id, statep); 283 284 list_for_each_entry(rport, &lport->rport_list, list) { 285 /* local short-hand pointer. */ 286 nrport = rport->remoteport; 287 288 /* Port state is only one of two values for now. */ 289 switch (nrport->port_state) { 290 case FC_OBJSTATE_ONLINE: 291 statep = "ONLINE"; 292 break; 293 case FC_OBJSTATE_UNKNOWN: 294 statep = "UNKNOWN "; 295 break; 296 default: 297 statep = "UNSUPPORTED"; 298 break; 299 } 300 301 /* Tab in to show lport ownership. */ 302 len += snprintf(buf + len, PAGE_SIZE - len, 303 "NVME RPORT "); 304 if (phba->brd_no >= 10) 305 len += snprintf(buf + len, PAGE_SIZE - len, " "); 306 307 len += snprintf(buf + len, PAGE_SIZE - len, "WWPN x%llx ", 308 nrport->port_name); 309 len += snprintf(buf + len, PAGE_SIZE - len, "WWNN x%llx ", 310 nrport->node_name); 311 len += snprintf(buf + len, PAGE_SIZE - len, "DID x%06x ", 312 nrport->port_id); 313 314 switch (nrport->port_role) { 315 case FC_PORT_ROLE_NVME_INITIATOR: 316 len += snprintf(buf + len, PAGE_SIZE - len, 317 "INITIATOR "); 318 break; 319 case FC_PORT_ROLE_NVME_TARGET: 320 len += snprintf(buf + len, PAGE_SIZE - len, 321 "TARGET "); 322 break; 323 case FC_PORT_ROLE_NVME_DISCOVERY: 324 len += snprintf(buf + len, PAGE_SIZE - len, 325 "DISCOVERY "); 326 break; 327 default: 328 len += snprintf(buf + len, PAGE_SIZE - len, 329 "UNKNOWN_ROLE x%x", 330 nrport->port_role); 331 break; 332 } 333 len += snprintf(buf + len, PAGE_SIZE - len, "%s ", statep); 334 /* Terminate the string. */ 335 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 336 } 337 spin_unlock_irq(shost->host_lock); 338 339 len += snprintf(buf + len, PAGE_SIZE - len, "\nNVME Statistics\n"); 340 len += snprintf(buf+len, PAGE_SIZE-len, 341 "LS: Xmt %016llx Cmpl %016llx\n", 342 phba->fc4NvmeLsRequests, 343 phba->fc4NvmeLsCmpls); 344 345 len += snprintf(buf+len, PAGE_SIZE-len, 346 "FCP: Rd %016llx Wr %016llx IO %016llx\n", 347 phba->fc4NvmeInputRequests, 348 phba->fc4NvmeOutputRequests, 349 phba->fc4NvmeControlRequests); 350 351 len += snprintf(buf+len, PAGE_SIZE-len, 352 " Cmpl %016llx\n", phba->fc4NvmeIoCmpls); 353 354 return len; 355 } 356 357 static ssize_t 358 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 359 char *buf) 360 { 361 struct Scsi_Host *shost = class_to_shost(dev); 362 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 363 struct lpfc_hba *phba = vport->phba; 364 365 if (phba->cfg_enable_bg) 366 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 367 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); 368 else 369 return snprintf(buf, PAGE_SIZE, 370 "BlockGuard Not Supported\n"); 371 else 372 return snprintf(buf, PAGE_SIZE, 373 "BlockGuard Disabled\n"); 374 } 375 376 static ssize_t 377 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 378 char *buf) 379 { 380 struct Scsi_Host *shost = class_to_shost(dev); 381 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 382 struct lpfc_hba *phba = vport->phba; 383 384 return snprintf(buf, PAGE_SIZE, "%llu\n", 385 (unsigned long long)phba->bg_guard_err_cnt); 386 } 387 388 static ssize_t 389 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 390 char *buf) 391 { 392 struct Scsi_Host *shost = class_to_shost(dev); 393 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 394 struct lpfc_hba *phba = vport->phba; 395 396 return snprintf(buf, PAGE_SIZE, "%llu\n", 397 (unsigned long long)phba->bg_apptag_err_cnt); 398 } 399 400 static ssize_t 401 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 402 char *buf) 403 { 404 struct Scsi_Host *shost = class_to_shost(dev); 405 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 406 struct lpfc_hba *phba = vport->phba; 407 408 return snprintf(buf, PAGE_SIZE, "%llu\n", 409 (unsigned long long)phba->bg_reftag_err_cnt); 410 } 411 412 /** 413 * lpfc_info_show - Return some pci info about the host in ascii 414 * @dev: class converted to a Scsi_host structure. 415 * @attr: device attribute, not used. 416 * @buf: on return contains the formatted text from lpfc_info(). 417 * 418 * Returns: size of formatted string. 419 **/ 420 static ssize_t 421 lpfc_info_show(struct device *dev, struct device_attribute *attr, 422 char *buf) 423 { 424 struct Scsi_Host *host = class_to_shost(dev); 425 426 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); 427 } 428 429 /** 430 * lpfc_serialnum_show - Return the hba serial number in ascii 431 * @dev: class converted to a Scsi_host structure. 432 * @attr: device attribute, not used. 433 * @buf: on return contains the formatted text serial number. 434 * 435 * Returns: size of formatted string. 436 **/ 437 static ssize_t 438 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 439 char *buf) 440 { 441 struct Scsi_Host *shost = class_to_shost(dev); 442 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 443 struct lpfc_hba *phba = vport->phba; 444 445 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); 446 } 447 448 /** 449 * lpfc_temp_sensor_show - Return the temperature sensor level 450 * @dev: class converted to a Scsi_host structure. 451 * @attr: device attribute, not used. 452 * @buf: on return contains the formatted support level. 453 * 454 * Description: 455 * Returns a number indicating the temperature sensor level currently 456 * supported, zero or one in ascii. 457 * 458 * Returns: size of formatted string. 459 **/ 460 static ssize_t 461 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 462 char *buf) 463 { 464 struct Scsi_Host *shost = class_to_shost(dev); 465 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 466 struct lpfc_hba *phba = vport->phba; 467 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); 468 } 469 470 /** 471 * lpfc_modeldesc_show - Return the model description of the hba 472 * @dev: class converted to a Scsi_host structure. 473 * @attr: device attribute, not used. 474 * @buf: on return contains the scsi vpd model description. 475 * 476 * Returns: size of formatted string. 477 **/ 478 static ssize_t 479 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 480 char *buf) 481 { 482 struct Scsi_Host *shost = class_to_shost(dev); 483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 484 struct lpfc_hba *phba = vport->phba; 485 486 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); 487 } 488 489 /** 490 * lpfc_modelname_show - Return the model name of the hba 491 * @dev: class converted to a Scsi_host structure. 492 * @attr: device attribute, not used. 493 * @buf: on return contains the scsi vpd model name. 494 * 495 * Returns: size of formatted string. 496 **/ 497 static ssize_t 498 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 499 char *buf) 500 { 501 struct Scsi_Host *shost = class_to_shost(dev); 502 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 503 struct lpfc_hba *phba = vport->phba; 504 505 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); 506 } 507 508 /** 509 * lpfc_programtype_show - Return the program type of the hba 510 * @dev: class converted to a Scsi_host structure. 511 * @attr: device attribute, not used. 512 * @buf: on return contains the scsi vpd program type. 513 * 514 * Returns: size of formatted string. 515 **/ 516 static ssize_t 517 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 518 char *buf) 519 { 520 struct Scsi_Host *shost = class_to_shost(dev); 521 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 522 struct lpfc_hba *phba = vport->phba; 523 524 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); 525 } 526 527 /** 528 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 529 * @dev: class converted to a Scsi_host structure. 530 * @attr: device attribute, not used. 531 * @buf: on return contains the Menlo Maintenance sli flag. 532 * 533 * Returns: size of formatted string. 534 **/ 535 static ssize_t 536 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 537 { 538 struct Scsi_Host *shost = class_to_shost(dev); 539 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 540 struct lpfc_hba *phba = vport->phba; 541 542 return snprintf(buf, PAGE_SIZE, "%d\n", 543 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 544 } 545 546 /** 547 * lpfc_vportnum_show - Return the port number in ascii of the hba 548 * @dev: class converted to a Scsi_host structure. 549 * @attr: device attribute, not used. 550 * @buf: on return contains scsi vpd program type. 551 * 552 * Returns: size of formatted string. 553 **/ 554 static ssize_t 555 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 556 char *buf) 557 { 558 struct Scsi_Host *shost = class_to_shost(dev); 559 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 560 struct lpfc_hba *phba = vport->phba; 561 562 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); 563 } 564 565 /** 566 * lpfc_fwrev_show - Return the firmware rev running in the hba 567 * @dev: class converted to a Scsi_host structure. 568 * @attr: device attribute, not used. 569 * @buf: on return contains the scsi vpd program type. 570 * 571 * Returns: size of formatted string. 572 **/ 573 static ssize_t 574 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 575 char *buf) 576 { 577 struct Scsi_Host *shost = class_to_shost(dev); 578 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 579 struct lpfc_hba *phba = vport->phba; 580 uint32_t if_type; 581 uint8_t sli_family; 582 char fwrev[FW_REV_STR_SIZE]; 583 int len; 584 585 lpfc_decode_firmware_rev(phba, fwrev, 1); 586 if_type = phba->sli4_hba.pc_sli4_params.if_type; 587 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 588 589 if (phba->sli_rev < LPFC_SLI_REV4) 590 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 591 fwrev, phba->sli_rev); 592 else 593 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 594 fwrev, phba->sli_rev, if_type, sli_family); 595 596 return len; 597 } 598 599 /** 600 * lpfc_hdw_show - Return the jedec information about the hba 601 * @dev: class converted to a Scsi_host structure. 602 * @attr: device attribute, not used. 603 * @buf: on return contains the scsi vpd program type. 604 * 605 * Returns: size of formatted string. 606 **/ 607 static ssize_t 608 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 609 { 610 char hdw[9]; 611 struct Scsi_Host *shost = class_to_shost(dev); 612 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 613 struct lpfc_hba *phba = vport->phba; 614 lpfc_vpd_t *vp = &phba->vpd; 615 616 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 617 return snprintf(buf, PAGE_SIZE, "%s\n", hdw); 618 } 619 620 /** 621 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 622 * @dev: class converted to a Scsi_host structure. 623 * @attr: device attribute, not used. 624 * @buf: on return contains the ROM and FCode ascii strings. 625 * 626 * Returns: size of formatted string. 627 **/ 628 static ssize_t 629 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 630 char *buf) 631 { 632 struct Scsi_Host *shost = class_to_shost(dev); 633 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 634 struct lpfc_hba *phba = vport->phba; 635 char fwrev[FW_REV_STR_SIZE]; 636 637 if (phba->sli_rev < LPFC_SLI_REV4) 638 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); 639 640 lpfc_decode_firmware_rev(phba, fwrev, 1); 641 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev); 642 } 643 644 /** 645 * lpfc_state_show - Return the link state of the port 646 * @dev: class converted to a Scsi_host structure. 647 * @attr: device attribute, not used. 648 * @buf: on return contains text describing the state of the link. 649 * 650 * Notes: 651 * The switch statement has no default so zero will be returned. 652 * 653 * Returns: size of formatted string. 654 **/ 655 static ssize_t 656 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 657 char *buf) 658 { 659 struct Scsi_Host *shost = class_to_shost(dev); 660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 661 struct lpfc_hba *phba = vport->phba; 662 int len = 0; 663 664 switch (phba->link_state) { 665 case LPFC_LINK_UNKNOWN: 666 case LPFC_WARM_START: 667 case LPFC_INIT_START: 668 case LPFC_INIT_MBX_CMDS: 669 case LPFC_LINK_DOWN: 670 case LPFC_HBA_ERROR: 671 if (phba->hba_flag & LINK_DISABLED) 672 len += snprintf(buf + len, PAGE_SIZE-len, 673 "Link Down - User disabled\n"); 674 else 675 len += snprintf(buf + len, PAGE_SIZE-len, 676 "Link Down\n"); 677 break; 678 case LPFC_LINK_UP: 679 case LPFC_CLEAR_LA: 680 case LPFC_HBA_READY: 681 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 682 683 switch (vport->port_state) { 684 case LPFC_LOCAL_CFG_LINK: 685 len += snprintf(buf + len, PAGE_SIZE-len, 686 "Configuring Link\n"); 687 break; 688 case LPFC_FDISC: 689 case LPFC_FLOGI: 690 case LPFC_FABRIC_CFG_LINK: 691 case LPFC_NS_REG: 692 case LPFC_NS_QRY: 693 case LPFC_BUILD_DISC_LIST: 694 case LPFC_DISC_AUTH: 695 len += snprintf(buf + len, PAGE_SIZE - len, 696 "Discovery\n"); 697 break; 698 case LPFC_VPORT_READY: 699 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n"); 700 break; 701 702 case LPFC_VPORT_FAILED: 703 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n"); 704 break; 705 706 case LPFC_VPORT_UNKNOWN: 707 len += snprintf(buf + len, PAGE_SIZE - len, 708 "Unknown\n"); 709 break; 710 } 711 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 712 len += snprintf(buf + len, PAGE_SIZE-len, 713 " Menlo Maint Mode\n"); 714 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 715 if (vport->fc_flag & FC_PUBLIC_LOOP) 716 len += snprintf(buf + len, PAGE_SIZE-len, 717 " Public Loop\n"); 718 else 719 len += snprintf(buf + len, PAGE_SIZE-len, 720 " Private Loop\n"); 721 } else { 722 if (vport->fc_flag & FC_FABRIC) 723 len += snprintf(buf + len, PAGE_SIZE-len, 724 " Fabric\n"); 725 else 726 len += snprintf(buf + len, PAGE_SIZE-len, 727 " Point-2-Point\n"); 728 } 729 } 730 731 return len; 732 } 733 734 /** 735 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 736 * @dev: class unused variable. 737 * @attr: device attribute, not used. 738 * @buf: on return contains the module description text. 739 * 740 * Returns: size of formatted string. 741 **/ 742 static ssize_t 743 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 744 char *buf) 745 { 746 struct Scsi_Host *shost = class_to_shost(dev); 747 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 748 struct lpfc_hba *phba = vport->phba; 749 750 if (phba->sli_rev < LPFC_SLI_REV4) 751 return snprintf(buf, PAGE_SIZE, "fc\n"); 752 753 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 754 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 755 return snprintf(buf, PAGE_SIZE, "fcoe\n"); 756 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 757 return snprintf(buf, PAGE_SIZE, "fc\n"); 758 } 759 return snprintf(buf, PAGE_SIZE, "unknown\n"); 760 } 761 762 /** 763 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 764 * (OAS) is supported. 765 * @dev: class unused variable. 766 * @attr: device attribute, not used. 767 * @buf: on return contains the module description text. 768 * 769 * Returns: size of formatted string. 770 **/ 771 static ssize_t 772 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 773 char *buf) 774 { 775 struct Scsi_Host *shost = class_to_shost(dev); 776 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 777 struct lpfc_hba *phba = vport->phba; 778 779 return snprintf(buf, PAGE_SIZE, "%d\n", 780 phba->sli4_hba.pc_sli4_params.oas_supported); 781 } 782 783 /** 784 * lpfc_link_state_store - Transition the link_state on an HBA port 785 * @dev: class device that is converted into a Scsi_host. 786 * @attr: device attribute, not used. 787 * @buf: one or more lpfc_polling_flags values. 788 * @count: not used. 789 * 790 * Returns: 791 * -EINVAL if the buffer is not "up" or "down" 792 * return from link state change function if non-zero 793 * length of the buf on success 794 **/ 795 static ssize_t 796 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 797 const char *buf, size_t count) 798 { 799 struct Scsi_Host *shost = class_to_shost(dev); 800 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 801 struct lpfc_hba *phba = vport->phba; 802 803 int status = -EINVAL; 804 805 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 806 (phba->link_state == LPFC_LINK_DOWN)) 807 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 808 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 809 (phba->link_state >= LPFC_LINK_UP)) 810 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 811 812 if (status == 0) 813 return strlen(buf); 814 else 815 return status; 816 } 817 818 /** 819 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 820 * @dev: class device that is converted into a Scsi_host. 821 * @attr: device attribute, not used. 822 * @buf: on return contains the sum of fc mapped and unmapped. 823 * 824 * Description: 825 * Returns the ascii text number of the sum of the fc mapped and unmapped 826 * vport counts. 827 * 828 * Returns: size of formatted string. 829 **/ 830 static ssize_t 831 lpfc_num_discovered_ports_show(struct device *dev, 832 struct device_attribute *attr, char *buf) 833 { 834 struct Scsi_Host *shost = class_to_shost(dev); 835 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 836 837 return snprintf(buf, PAGE_SIZE, "%d\n", 838 vport->fc_map_cnt + vport->fc_unmap_cnt); 839 } 840 841 /** 842 * lpfc_issue_lip - Misnomer, name carried over from long ago 843 * @shost: Scsi_Host pointer. 844 * 845 * Description: 846 * Bring the link down gracefully then re-init the link. The firmware will 847 * re-init the fiber channel interface as required. Does not issue a LIP. 848 * 849 * Returns: 850 * -EPERM port offline or management commands are being blocked 851 * -ENOMEM cannot allocate memory for the mailbox command 852 * -EIO error sending the mailbox command 853 * zero for success 854 **/ 855 static int 856 lpfc_issue_lip(struct Scsi_Host *shost) 857 { 858 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 859 struct lpfc_hba *phba = vport->phba; 860 LPFC_MBOXQ_t *pmboxq; 861 int mbxstatus = MBXERR_ERROR; 862 863 if ((vport->fc_flag & FC_OFFLINE_MODE) || 864 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 865 return -EPERM; 866 867 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 868 869 if (!pmboxq) 870 return -ENOMEM; 871 872 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 873 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 874 pmboxq->u.mb.mbxOwner = OWN_HOST; 875 876 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 877 878 if ((mbxstatus == MBX_SUCCESS) && 879 (pmboxq->u.mb.mbxStatus == 0 || 880 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 881 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 882 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 883 phba->cfg_link_speed); 884 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 885 phba->fc_ratov * 2); 886 if ((mbxstatus == MBX_SUCCESS) && 887 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 888 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 889 "2859 SLI authentication is required " 890 "for INIT_LINK but has not done yet\n"); 891 } 892 893 lpfc_set_loopback_flag(phba); 894 if (mbxstatus != MBX_TIMEOUT) 895 mempool_free(pmboxq, phba->mbox_mem_pool); 896 897 if (mbxstatus == MBXERR_ERROR) 898 return -EIO; 899 900 return 0; 901 } 902 903 int 904 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 905 { 906 int cnt = 0; 907 908 spin_lock_irq(lock); 909 while (!list_empty(q)) { 910 spin_unlock_irq(lock); 911 msleep(20); 912 if (cnt++ > 250) { /* 5 secs */ 913 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 914 "0466 %s %s\n", 915 "Outstanding IO when ", 916 "bringing Adapter offline\n"); 917 return 0; 918 } 919 spin_lock_irq(lock); 920 } 921 spin_unlock_irq(lock); 922 return 1; 923 } 924 925 /** 926 * lpfc_do_offline - Issues a mailbox command to bring the link down 927 * @phba: lpfc_hba pointer. 928 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 929 * 930 * Notes: 931 * Assumes any error from lpfc_do_offline() will be negative. 932 * Can wait up to 5 seconds for the port ring buffers count 933 * to reach zero, prints a warning if it is not zero and continues. 934 * lpfc_workq_post_event() returns a non-zero return code if call fails. 935 * 936 * Returns: 937 * -EIO error posting the event 938 * zero for success 939 **/ 940 static int 941 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 942 { 943 struct completion online_compl; 944 struct lpfc_queue *qp = NULL; 945 struct lpfc_sli_ring *pring; 946 struct lpfc_sli *psli; 947 int status = 0; 948 int i; 949 int rc; 950 951 init_completion(&online_compl); 952 rc = lpfc_workq_post_event(phba, &status, &online_compl, 953 LPFC_EVT_OFFLINE_PREP); 954 if (rc == 0) 955 return -ENOMEM; 956 957 wait_for_completion(&online_compl); 958 959 if (status != 0) 960 return -EIO; 961 962 psli = &phba->sli; 963 964 /* Wait a little for things to settle down, but not 965 * long enough for dev loss timeout to expire. 966 */ 967 if (phba->sli_rev != LPFC_SLI_REV4) { 968 for (i = 0; i < psli->num_rings; i++) { 969 pring = &psli->sli3_ring[i]; 970 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 971 &phba->hbalock)) 972 goto out; 973 } 974 } else { 975 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 976 pring = qp->pring; 977 if (!pring) 978 continue; 979 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 980 &pring->ring_lock)) 981 goto out; 982 } 983 } 984 out: 985 init_completion(&online_compl); 986 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 987 if (rc == 0) 988 return -ENOMEM; 989 990 wait_for_completion(&online_compl); 991 992 if (status != 0) 993 return -EIO; 994 995 return 0; 996 } 997 998 /** 999 * lpfc_selective_reset - Offline then onlines the port 1000 * @phba: lpfc_hba pointer. 1001 * 1002 * Description: 1003 * If the port is configured to allow a reset then the hba is brought 1004 * offline then online. 1005 * 1006 * Notes: 1007 * Assumes any error from lpfc_do_offline() will be negative. 1008 * Do not make this function static. 1009 * 1010 * Returns: 1011 * lpfc_do_offline() return code if not zero 1012 * -EIO reset not configured or error posting the event 1013 * zero for success 1014 **/ 1015 int 1016 lpfc_selective_reset(struct lpfc_hba *phba) 1017 { 1018 struct completion online_compl; 1019 int status = 0; 1020 int rc; 1021 1022 if (!phba->cfg_enable_hba_reset) 1023 return -EACCES; 1024 1025 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1026 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1027 1028 if (status != 0) 1029 return status; 1030 } 1031 1032 init_completion(&online_compl); 1033 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1034 LPFC_EVT_ONLINE); 1035 if (rc == 0) 1036 return -ENOMEM; 1037 1038 wait_for_completion(&online_compl); 1039 1040 if (status != 0) 1041 return -EIO; 1042 1043 return 0; 1044 } 1045 1046 /** 1047 * lpfc_issue_reset - Selectively resets an adapter 1048 * @dev: class device that is converted into a Scsi_host. 1049 * @attr: device attribute, not used. 1050 * @buf: containing the string "selective". 1051 * @count: unused variable. 1052 * 1053 * Description: 1054 * If the buf contains the string "selective" then lpfc_selective_reset() 1055 * is called to perform the reset. 1056 * 1057 * Notes: 1058 * Assumes any error from lpfc_selective_reset() will be negative. 1059 * If lpfc_selective_reset() returns zero then the length of the buffer 1060 * is returned which indicates success 1061 * 1062 * Returns: 1063 * -EINVAL if the buffer does not contain the string "selective" 1064 * length of buf if lpfc-selective_reset() if the call succeeds 1065 * return value of lpfc_selective_reset() if the call fails 1066 **/ 1067 static ssize_t 1068 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1069 const char *buf, size_t count) 1070 { 1071 struct Scsi_Host *shost = class_to_shost(dev); 1072 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1073 struct lpfc_hba *phba = vport->phba; 1074 int status = -EINVAL; 1075 1076 if (!phba->cfg_enable_hba_reset) 1077 return -EACCES; 1078 1079 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1080 status = phba->lpfc_selective_reset(phba); 1081 1082 if (status == 0) 1083 return strlen(buf); 1084 else 1085 return status; 1086 } 1087 1088 /** 1089 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1090 * @phba: lpfc_hba pointer. 1091 * 1092 * Description: 1093 * SLI4 interface type-2 device to wait on the sliport status register for 1094 * the readyness after performing a firmware reset. 1095 * 1096 * Returns: 1097 * zero for success, -EPERM when port does not have privilege to perform the 1098 * reset, -EIO when port timeout from recovering from the reset. 1099 * 1100 * Note: 1101 * As the caller will interpret the return code by value, be careful in making 1102 * change or addition to return codes. 1103 **/ 1104 int 1105 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1106 { 1107 struct lpfc_register portstat_reg = {0}; 1108 int i; 1109 1110 msleep(100); 1111 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1112 &portstat_reg.word0); 1113 1114 /* verify if privileged for the request operation */ 1115 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1116 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1117 return -EPERM; 1118 1119 /* wait for the SLI port firmware ready after firmware reset */ 1120 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1121 msleep(10); 1122 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1123 &portstat_reg.word0); 1124 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1125 continue; 1126 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1127 continue; 1128 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1129 continue; 1130 break; 1131 } 1132 1133 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1134 return 0; 1135 else 1136 return -EIO; 1137 } 1138 1139 /** 1140 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1141 * @phba: lpfc_hba pointer. 1142 * 1143 * Description: 1144 * Request SLI4 interface type-2 device to perform a physical register set 1145 * access. 1146 * 1147 * Returns: 1148 * zero for success 1149 **/ 1150 static ssize_t 1151 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1152 { 1153 struct completion online_compl; 1154 struct pci_dev *pdev = phba->pcidev; 1155 uint32_t before_fc_flag; 1156 uint32_t sriov_nr_virtfn; 1157 uint32_t reg_val; 1158 int status = 0, rc = 0; 1159 int job_posted = 1, sriov_err; 1160 1161 if (!phba->cfg_enable_hba_reset) 1162 return -EACCES; 1163 1164 if ((phba->sli_rev < LPFC_SLI_REV4) || 1165 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 1166 LPFC_SLI_INTF_IF_TYPE_2)) 1167 return -EPERM; 1168 1169 /* Keep state if we need to restore back */ 1170 before_fc_flag = phba->pport->fc_flag; 1171 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1172 1173 /* Disable SR-IOV virtual functions if enabled */ 1174 if (phba->cfg_sriov_nr_virtfn) { 1175 pci_disable_sriov(pdev); 1176 phba->cfg_sriov_nr_virtfn = 0; 1177 } 1178 1179 if (opcode == LPFC_FW_DUMP) 1180 phba->hba_flag |= HBA_FW_DUMP_OP; 1181 1182 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1183 1184 if (status != 0) { 1185 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1186 return status; 1187 } 1188 1189 /* wait for the device to be quiesced before firmware reset */ 1190 msleep(100); 1191 1192 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1193 LPFC_CTL_PDEV_CTL_OFFSET); 1194 1195 if (opcode == LPFC_FW_DUMP) 1196 reg_val |= LPFC_FW_DUMP_REQUEST; 1197 else if (opcode == LPFC_FW_RESET) 1198 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1199 else if (opcode == LPFC_DV_RESET) 1200 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1201 1202 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1203 LPFC_CTL_PDEV_CTL_OFFSET); 1204 /* flush */ 1205 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1206 1207 /* delay driver action following IF_TYPE_2 reset */ 1208 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1209 1210 if (rc == -EPERM) { 1211 /* no privilege for reset */ 1212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1213 "3150 No privilege to perform the requested " 1214 "access: x%x\n", reg_val); 1215 } else if (rc == -EIO) { 1216 /* reset failed, there is nothing more we can do */ 1217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1218 "3153 Fail to perform the requested " 1219 "access: x%x\n", reg_val); 1220 return rc; 1221 } 1222 1223 /* keep the original port state */ 1224 if (before_fc_flag & FC_OFFLINE_MODE) 1225 goto out; 1226 1227 init_completion(&online_compl); 1228 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1229 LPFC_EVT_ONLINE); 1230 if (!job_posted) 1231 goto out; 1232 1233 wait_for_completion(&online_compl); 1234 1235 out: 1236 /* in any case, restore the virtual functions enabled as before */ 1237 if (sriov_nr_virtfn) { 1238 sriov_err = 1239 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1240 if (!sriov_err) 1241 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1242 } 1243 1244 /* return proper error code */ 1245 if (!rc) { 1246 if (!job_posted) 1247 rc = -ENOMEM; 1248 else if (status) 1249 rc = -EIO; 1250 } 1251 return rc; 1252 } 1253 1254 /** 1255 * lpfc_nport_evt_cnt_show - Return the number of nport events 1256 * @dev: class device that is converted into a Scsi_host. 1257 * @attr: device attribute, not used. 1258 * @buf: on return contains the ascii number of nport events. 1259 * 1260 * Returns: size of formatted string. 1261 **/ 1262 static ssize_t 1263 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1264 char *buf) 1265 { 1266 struct Scsi_Host *shost = class_to_shost(dev); 1267 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1268 struct lpfc_hba *phba = vport->phba; 1269 1270 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1271 } 1272 1273 /** 1274 * lpfc_board_mode_show - Return the state of the board 1275 * @dev: class device that is converted into a Scsi_host. 1276 * @attr: device attribute, not used. 1277 * @buf: on return contains the state of the adapter. 1278 * 1279 * Returns: size of formatted string. 1280 **/ 1281 static ssize_t 1282 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1283 char *buf) 1284 { 1285 struct Scsi_Host *shost = class_to_shost(dev); 1286 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1287 struct lpfc_hba *phba = vport->phba; 1288 char * state; 1289 1290 if (phba->link_state == LPFC_HBA_ERROR) 1291 state = "error"; 1292 else if (phba->link_state == LPFC_WARM_START) 1293 state = "warm start"; 1294 else if (phba->link_state == LPFC_INIT_START) 1295 state = "offline"; 1296 else 1297 state = "online"; 1298 1299 return snprintf(buf, PAGE_SIZE, "%s\n", state); 1300 } 1301 1302 /** 1303 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1304 * @dev: class device that is converted into a Scsi_host. 1305 * @attr: device attribute, not used. 1306 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1307 * @count: unused variable. 1308 * 1309 * Returns: 1310 * -EACCES if enable hba reset not enabled 1311 * -EINVAL if the buffer does not contain a valid string (see above) 1312 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1313 * buf length greater than zero indicates success 1314 **/ 1315 static ssize_t 1316 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1317 const char *buf, size_t count) 1318 { 1319 struct Scsi_Host *shost = class_to_shost(dev); 1320 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1321 struct lpfc_hba *phba = vport->phba; 1322 struct completion online_compl; 1323 char *board_mode_str = NULL; 1324 int status = 0; 1325 int rc; 1326 1327 if (!phba->cfg_enable_hba_reset) { 1328 status = -EACCES; 1329 goto board_mode_out; 1330 } 1331 1332 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1333 "3050 lpfc_board_mode set to %s\n", buf); 1334 1335 init_completion(&online_compl); 1336 1337 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1338 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1339 LPFC_EVT_ONLINE); 1340 if (rc == 0) { 1341 status = -ENOMEM; 1342 goto board_mode_out; 1343 } 1344 wait_for_completion(&online_compl); 1345 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1346 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1347 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1348 if (phba->sli_rev == LPFC_SLI_REV4) 1349 status = -EINVAL; 1350 else 1351 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1352 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1353 if (phba->sli_rev == LPFC_SLI_REV4) 1354 status = -EINVAL; 1355 else 1356 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1357 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1358 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1359 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1360 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1361 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1362 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1363 else 1364 status = -EINVAL; 1365 1366 board_mode_out: 1367 if (!status) 1368 return strlen(buf); 1369 else { 1370 board_mode_str = strchr(buf, '\n'); 1371 if (board_mode_str) 1372 *board_mode_str = '\0'; 1373 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1374 "3097 Failed \"%s\", status(%d), " 1375 "fc_flag(x%x)\n", 1376 buf, status, phba->pport->fc_flag); 1377 return status; 1378 } 1379 } 1380 1381 /** 1382 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1383 * @phba: pointer to the adapter structure. 1384 * @mxri: max xri count. 1385 * @axri: available xri count. 1386 * @mrpi: max rpi count. 1387 * @arpi: available rpi count. 1388 * @mvpi: max vpi count. 1389 * @avpi: available vpi count. 1390 * 1391 * Description: 1392 * If an integer pointer for an count is not null then the value for the 1393 * count is returned. 1394 * 1395 * Returns: 1396 * zero on error 1397 * one for success 1398 **/ 1399 static int 1400 lpfc_get_hba_info(struct lpfc_hba *phba, 1401 uint32_t *mxri, uint32_t *axri, 1402 uint32_t *mrpi, uint32_t *arpi, 1403 uint32_t *mvpi, uint32_t *avpi) 1404 { 1405 struct lpfc_mbx_read_config *rd_config; 1406 LPFC_MBOXQ_t *pmboxq; 1407 MAILBOX_t *pmb; 1408 int rc = 0; 1409 uint32_t max_vpi; 1410 1411 /* 1412 * prevent udev from issuing mailbox commands until the port is 1413 * configured. 1414 */ 1415 if (phba->link_state < LPFC_LINK_DOWN || 1416 !phba->mbox_mem_pool || 1417 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1418 return 0; 1419 1420 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1421 return 0; 1422 1423 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1424 if (!pmboxq) 1425 return 0; 1426 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1427 1428 pmb = &pmboxq->u.mb; 1429 pmb->mbxCommand = MBX_READ_CONFIG; 1430 pmb->mbxOwner = OWN_HOST; 1431 pmboxq->context1 = NULL; 1432 1433 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1434 rc = MBX_NOT_FINISHED; 1435 else 1436 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1437 1438 if (rc != MBX_SUCCESS) { 1439 if (rc != MBX_TIMEOUT) 1440 mempool_free(pmboxq, phba->mbox_mem_pool); 1441 return 0; 1442 } 1443 1444 if (phba->sli_rev == LPFC_SLI_REV4) { 1445 rd_config = &pmboxq->u.mqe.un.rd_config; 1446 if (mrpi) 1447 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1448 if (arpi) 1449 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1450 phba->sli4_hba.max_cfg_param.rpi_used; 1451 if (mxri) 1452 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1453 if (axri) 1454 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1455 phba->sli4_hba.max_cfg_param.xri_used; 1456 1457 /* Account for differences with SLI-3. Get vpi count from 1458 * mailbox data and subtract one for max vpi value. 1459 */ 1460 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1461 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1462 1463 if (mvpi) 1464 *mvpi = max_vpi; 1465 if (avpi) 1466 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1467 } else { 1468 if (mrpi) 1469 *mrpi = pmb->un.varRdConfig.max_rpi; 1470 if (arpi) 1471 *arpi = pmb->un.varRdConfig.avail_rpi; 1472 if (mxri) 1473 *mxri = pmb->un.varRdConfig.max_xri; 1474 if (axri) 1475 *axri = pmb->un.varRdConfig.avail_xri; 1476 if (mvpi) 1477 *mvpi = pmb->un.varRdConfig.max_vpi; 1478 if (avpi) 1479 *avpi = pmb->un.varRdConfig.avail_vpi; 1480 } 1481 1482 mempool_free(pmboxq, phba->mbox_mem_pool); 1483 return 1; 1484 } 1485 1486 /** 1487 * lpfc_max_rpi_show - Return maximum rpi 1488 * @dev: class device that is converted into a Scsi_host. 1489 * @attr: device attribute, not used. 1490 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1491 * 1492 * Description: 1493 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1494 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1495 * to "Unknown" and the buffer length is returned, therefore the caller 1496 * must check for "Unknown" in the buffer to detect a failure. 1497 * 1498 * Returns: size of formatted string. 1499 **/ 1500 static ssize_t 1501 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1502 char *buf) 1503 { 1504 struct Scsi_Host *shost = class_to_shost(dev); 1505 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1506 struct lpfc_hba *phba = vport->phba; 1507 uint32_t cnt; 1508 1509 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1510 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1511 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1512 } 1513 1514 /** 1515 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1516 * @dev: class device that is converted into a Scsi_host. 1517 * @attr: device attribute, not used. 1518 * @buf: containing the used rpi count in decimal or "Unknown". 1519 * 1520 * Description: 1521 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1522 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1523 * to "Unknown" and the buffer length is returned, therefore the caller 1524 * must check for "Unknown" in the buffer to detect a failure. 1525 * 1526 * Returns: size of formatted string. 1527 **/ 1528 static ssize_t 1529 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1530 char *buf) 1531 { 1532 struct Scsi_Host *shost = class_to_shost(dev); 1533 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1534 struct lpfc_hba *phba = vport->phba; 1535 uint32_t cnt, acnt; 1536 1537 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1538 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1539 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1540 } 1541 1542 /** 1543 * lpfc_max_xri_show - Return maximum xri 1544 * @dev: class device that is converted into a Scsi_host. 1545 * @attr: device attribute, not used. 1546 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1547 * 1548 * Description: 1549 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1550 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1551 * to "Unknown" and the buffer length is returned, therefore the caller 1552 * must check for "Unknown" in the buffer to detect a failure. 1553 * 1554 * Returns: size of formatted string. 1555 **/ 1556 static ssize_t 1557 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1558 char *buf) 1559 { 1560 struct Scsi_Host *shost = class_to_shost(dev); 1561 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1562 struct lpfc_hba *phba = vport->phba; 1563 uint32_t cnt; 1564 1565 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 1566 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1567 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1568 } 1569 1570 /** 1571 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 1572 * @dev: class device that is converted into a Scsi_host. 1573 * @attr: device attribute, not used. 1574 * @buf: on return contains the used xri count in decimal or "Unknown". 1575 * 1576 * Description: 1577 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 1578 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1579 * to "Unknown" and the buffer length is returned, therefore the caller 1580 * must check for "Unknown" in the buffer to detect a failure. 1581 * 1582 * Returns: size of formatted string. 1583 **/ 1584 static ssize_t 1585 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 1586 char *buf) 1587 { 1588 struct Scsi_Host *shost = class_to_shost(dev); 1589 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1590 struct lpfc_hba *phba = vport->phba; 1591 uint32_t cnt, acnt; 1592 1593 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 1594 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1595 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1596 } 1597 1598 /** 1599 * lpfc_max_vpi_show - Return maximum vpi 1600 * @dev: class device that is converted into a Scsi_host. 1601 * @attr: device attribute, not used. 1602 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 1603 * 1604 * Description: 1605 * Calls lpfc_get_hba_info() asking for just the mvpi count. 1606 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1607 * to "Unknown" and the buffer length is returned, therefore the caller 1608 * must check for "Unknown" in the buffer to detect a failure. 1609 * 1610 * Returns: size of formatted string. 1611 **/ 1612 static ssize_t 1613 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 1614 char *buf) 1615 { 1616 struct Scsi_Host *shost = class_to_shost(dev); 1617 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1618 struct lpfc_hba *phba = vport->phba; 1619 uint32_t cnt; 1620 1621 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 1622 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1623 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1624 } 1625 1626 /** 1627 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 1628 * @dev: class device that is converted into a Scsi_host. 1629 * @attr: device attribute, not used. 1630 * @buf: on return contains the used vpi count in decimal or "Unknown". 1631 * 1632 * Description: 1633 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 1634 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1635 * to "Unknown" and the buffer length is returned, therefore the caller 1636 * must check for "Unknown" in the buffer to detect a failure. 1637 * 1638 * Returns: size of formatted string. 1639 **/ 1640 static ssize_t 1641 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 1642 char *buf) 1643 { 1644 struct Scsi_Host *shost = class_to_shost(dev); 1645 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1646 struct lpfc_hba *phba = vport->phba; 1647 uint32_t cnt, acnt; 1648 1649 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 1650 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1651 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1652 } 1653 1654 /** 1655 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 1656 * @dev: class device that is converted into a Scsi_host. 1657 * @attr: device attribute, not used. 1658 * @buf: text that must be interpreted to determine if npiv is supported. 1659 * 1660 * Description: 1661 * Buffer will contain text indicating npiv is not suppoerted on the port, 1662 * the port is an NPIV physical port, or it is an npiv virtual port with 1663 * the id of the vport. 1664 * 1665 * Returns: size of formatted string. 1666 **/ 1667 static ssize_t 1668 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 1669 char *buf) 1670 { 1671 struct Scsi_Host *shost = class_to_shost(dev); 1672 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1673 struct lpfc_hba *phba = vport->phba; 1674 1675 if (!(phba->max_vpi)) 1676 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 1677 if (vport->port_type == LPFC_PHYSICAL_PORT) 1678 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 1679 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 1680 } 1681 1682 /** 1683 * lpfc_poll_show - Return text about poll support for the adapter 1684 * @dev: class device that is converted into a Scsi_host. 1685 * @attr: device attribute, not used. 1686 * @buf: on return contains the cfg_poll in hex. 1687 * 1688 * Notes: 1689 * cfg_poll should be a lpfc_polling_flags type. 1690 * 1691 * Returns: size of formatted string. 1692 **/ 1693 static ssize_t 1694 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 1695 char *buf) 1696 { 1697 struct Scsi_Host *shost = class_to_shost(dev); 1698 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1699 struct lpfc_hba *phba = vport->phba; 1700 1701 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 1702 } 1703 1704 /** 1705 * lpfc_poll_store - Set the value of cfg_poll for the adapter 1706 * @dev: class device that is converted into a Scsi_host. 1707 * @attr: device attribute, not used. 1708 * @buf: one or more lpfc_polling_flags values. 1709 * @count: not used. 1710 * 1711 * Notes: 1712 * buf contents converted to integer and checked for a valid value. 1713 * 1714 * Returns: 1715 * -EINVAL if the buffer connot be converted or is out of range 1716 * length of the buf on success 1717 **/ 1718 static ssize_t 1719 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 1720 const char *buf, size_t count) 1721 { 1722 struct Scsi_Host *shost = class_to_shost(dev); 1723 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1724 struct lpfc_hba *phba = vport->phba; 1725 uint32_t creg_val; 1726 uint32_t old_val; 1727 int val=0; 1728 1729 if (!isdigit(buf[0])) 1730 return -EINVAL; 1731 1732 if (sscanf(buf, "%i", &val) != 1) 1733 return -EINVAL; 1734 1735 if ((val & 0x3) != val) 1736 return -EINVAL; 1737 1738 if (phba->sli_rev == LPFC_SLI_REV4) 1739 val = 0; 1740 1741 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1742 "3051 lpfc_poll changed from %d to %d\n", 1743 phba->cfg_poll, val); 1744 1745 spin_lock_irq(&phba->hbalock); 1746 1747 old_val = phba->cfg_poll; 1748 1749 if (val & ENABLE_FCP_RING_POLLING) { 1750 if ((val & DISABLE_FCP_RING_INT) && 1751 !(old_val & DISABLE_FCP_RING_INT)) { 1752 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 1753 spin_unlock_irq(&phba->hbalock); 1754 return -EINVAL; 1755 } 1756 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 1757 writel(creg_val, phba->HCregaddr); 1758 readl(phba->HCregaddr); /* flush */ 1759 1760 lpfc_poll_start_timer(phba); 1761 } 1762 } else if (val != 0x0) { 1763 spin_unlock_irq(&phba->hbalock); 1764 return -EINVAL; 1765 } 1766 1767 if (!(val & DISABLE_FCP_RING_INT) && 1768 (old_val & DISABLE_FCP_RING_INT)) 1769 { 1770 spin_unlock_irq(&phba->hbalock); 1771 del_timer(&phba->fcp_poll_timer); 1772 spin_lock_irq(&phba->hbalock); 1773 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 1774 spin_unlock_irq(&phba->hbalock); 1775 return -EINVAL; 1776 } 1777 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 1778 writel(creg_val, phba->HCregaddr); 1779 readl(phba->HCregaddr); /* flush */ 1780 } 1781 1782 phba->cfg_poll = val; 1783 1784 spin_unlock_irq(&phba->hbalock); 1785 1786 return strlen(buf); 1787 } 1788 1789 /** 1790 * lpfc_fips_level_show - Return the current FIPS level for the HBA 1791 * @dev: class unused variable. 1792 * @attr: device attribute, not used. 1793 * @buf: on return contains the module description text. 1794 * 1795 * Returns: size of formatted string. 1796 **/ 1797 static ssize_t 1798 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 1799 char *buf) 1800 { 1801 struct Scsi_Host *shost = class_to_shost(dev); 1802 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1803 struct lpfc_hba *phba = vport->phba; 1804 1805 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 1806 } 1807 1808 /** 1809 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 1810 * @dev: class unused variable. 1811 * @attr: device attribute, not used. 1812 * @buf: on return contains the module description text. 1813 * 1814 * Returns: size of formatted string. 1815 **/ 1816 static ssize_t 1817 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 1818 char *buf) 1819 { 1820 struct Scsi_Host *shost = class_to_shost(dev); 1821 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1822 struct lpfc_hba *phba = vport->phba; 1823 1824 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 1825 } 1826 1827 /** 1828 * lpfc_dss_show - Return the current state of dss and the configured state 1829 * @dev: class converted to a Scsi_host structure. 1830 * @attr: device attribute, not used. 1831 * @buf: on return contains the formatted text. 1832 * 1833 * Returns: size of formatted string. 1834 **/ 1835 static ssize_t 1836 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 1837 char *buf) 1838 { 1839 struct Scsi_Host *shost = class_to_shost(dev); 1840 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1841 struct lpfc_hba *phba = vport->phba; 1842 1843 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 1844 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 1845 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 1846 "" : "Not "); 1847 } 1848 1849 /** 1850 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 1851 * @dev: class converted to a Scsi_host structure. 1852 * @attr: device attribute, not used. 1853 * @buf: on return contains the formatted support level. 1854 * 1855 * Description: 1856 * Returns the maximum number of virtual functions a physical function can 1857 * support, 0 will be returned if called on virtual function. 1858 * 1859 * Returns: size of formatted string. 1860 **/ 1861 static ssize_t 1862 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 1863 struct device_attribute *attr, 1864 char *buf) 1865 { 1866 struct Scsi_Host *shost = class_to_shost(dev); 1867 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1868 struct lpfc_hba *phba = vport->phba; 1869 uint16_t max_nr_virtfn; 1870 1871 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 1872 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 1873 } 1874 1875 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 1876 { 1877 return val >= min && val <= max; 1878 } 1879 1880 /** 1881 * lpfc_param_show - Return a cfg attribute value in decimal 1882 * 1883 * Description: 1884 * Macro that given an attr e.g. hba_queue_depth expands 1885 * into a function with the name lpfc_hba_queue_depth_show. 1886 * 1887 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 1888 * @dev: class device that is converted into a Scsi_host. 1889 * @attr: device attribute, not used. 1890 * @buf: on return contains the attribute value in decimal. 1891 * 1892 * Returns: size of formatted string. 1893 **/ 1894 #define lpfc_param_show(attr) \ 1895 static ssize_t \ 1896 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1897 char *buf) \ 1898 { \ 1899 struct Scsi_Host *shost = class_to_shost(dev);\ 1900 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 1901 struct lpfc_hba *phba = vport->phba;\ 1902 return snprintf(buf, PAGE_SIZE, "%d\n",\ 1903 phba->cfg_##attr);\ 1904 } 1905 1906 /** 1907 * lpfc_param_hex_show - Return a cfg attribute value in hex 1908 * 1909 * Description: 1910 * Macro that given an attr e.g. hba_queue_depth expands 1911 * into a function with the name lpfc_hba_queue_depth_show 1912 * 1913 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 1914 * @dev: class device that is converted into a Scsi_host. 1915 * @attr: device attribute, not used. 1916 * @buf: on return contains the attribute value in hexadecimal. 1917 * 1918 * Returns: size of formatted string. 1919 **/ 1920 #define lpfc_param_hex_show(attr) \ 1921 static ssize_t \ 1922 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1923 char *buf) \ 1924 { \ 1925 struct Scsi_Host *shost = class_to_shost(dev);\ 1926 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 1927 struct lpfc_hba *phba = vport->phba;\ 1928 uint val = 0;\ 1929 val = phba->cfg_##attr;\ 1930 return snprintf(buf, PAGE_SIZE, "%#x\n",\ 1931 phba->cfg_##attr);\ 1932 } 1933 1934 /** 1935 * lpfc_param_init - Initializes a cfg attribute 1936 * 1937 * Description: 1938 * Macro that given an attr e.g. hba_queue_depth expands 1939 * into a function with the name lpfc_hba_queue_depth_init. The macro also 1940 * takes a default argument, a minimum and maximum argument. 1941 * 1942 * lpfc_##attr##_init: Initializes an attribute. 1943 * @phba: pointer the the adapter structure. 1944 * @val: integer attribute value. 1945 * 1946 * Validates the min and max values then sets the adapter config field 1947 * accordingly, or uses the default if out of range and prints an error message. 1948 * 1949 * Returns: 1950 * zero on success 1951 * -EINVAL if default used 1952 **/ 1953 #define lpfc_param_init(attr, default, minval, maxval) \ 1954 static int \ 1955 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 1956 { \ 1957 if (lpfc_rangecheck(val, minval, maxval)) {\ 1958 phba->cfg_##attr = val;\ 1959 return 0;\ 1960 }\ 1961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 1962 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 1963 "allowed range is ["#minval", "#maxval"]\n", val); \ 1964 phba->cfg_##attr = default;\ 1965 return -EINVAL;\ 1966 } 1967 1968 /** 1969 * lpfc_param_set - Set a cfg attribute value 1970 * 1971 * Description: 1972 * Macro that given an attr e.g. hba_queue_depth expands 1973 * into a function with the name lpfc_hba_queue_depth_set 1974 * 1975 * lpfc_##attr##_set: Sets an attribute value. 1976 * @phba: pointer the the adapter structure. 1977 * @val: integer attribute value. 1978 * 1979 * Description: 1980 * Validates the min and max values then sets the 1981 * adapter config field if in the valid range. prints error message 1982 * and does not set the parameter if invalid. 1983 * 1984 * Returns: 1985 * zero on success 1986 * -EINVAL if val is invalid 1987 **/ 1988 #define lpfc_param_set(attr, default, minval, maxval) \ 1989 static int \ 1990 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 1991 { \ 1992 if (lpfc_rangecheck(val, minval, maxval)) {\ 1993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 1994 "3052 lpfc_" #attr " changed from %d to %d\n", \ 1995 phba->cfg_##attr, val); \ 1996 phba->cfg_##attr = val;\ 1997 return 0;\ 1998 }\ 1999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2000 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2001 "allowed range is ["#minval", "#maxval"]\n", val); \ 2002 return -EINVAL;\ 2003 } 2004 2005 /** 2006 * lpfc_param_store - Set a vport attribute value 2007 * 2008 * Description: 2009 * Macro that given an attr e.g. hba_queue_depth expands 2010 * into a function with the name lpfc_hba_queue_depth_store. 2011 * 2012 * lpfc_##attr##_store: Set an sttribute value. 2013 * @dev: class device that is converted into a Scsi_host. 2014 * @attr: device attribute, not used. 2015 * @buf: contains the attribute value in ascii. 2016 * @count: not used. 2017 * 2018 * Description: 2019 * Convert the ascii text number to an integer, then 2020 * use the lpfc_##attr##_set function to set the value. 2021 * 2022 * Returns: 2023 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2024 * length of buffer upon success. 2025 **/ 2026 #define lpfc_param_store(attr) \ 2027 static ssize_t \ 2028 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2029 const char *buf, size_t count) \ 2030 { \ 2031 struct Scsi_Host *shost = class_to_shost(dev);\ 2032 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2033 struct lpfc_hba *phba = vport->phba;\ 2034 uint val = 0;\ 2035 if (!isdigit(buf[0]))\ 2036 return -EINVAL;\ 2037 if (sscanf(buf, "%i", &val) != 1)\ 2038 return -EINVAL;\ 2039 if (lpfc_##attr##_set(phba, val) == 0) \ 2040 return strlen(buf);\ 2041 else \ 2042 return -EINVAL;\ 2043 } 2044 2045 /** 2046 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2047 * 2048 * Description: 2049 * Macro that given an attr e.g. hba_queue_depth expands 2050 * into a function with the name lpfc_hba_queue_depth_show 2051 * 2052 * lpfc_##attr##_show: prints the attribute value in decimal. 2053 * @dev: class device that is converted into a Scsi_host. 2054 * @attr: device attribute, not used. 2055 * @buf: on return contains the attribute value in decimal. 2056 * 2057 * Returns: length of formatted string. 2058 **/ 2059 #define lpfc_vport_param_show(attr) \ 2060 static ssize_t \ 2061 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2062 char *buf) \ 2063 { \ 2064 struct Scsi_Host *shost = class_to_shost(dev);\ 2065 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2066 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2067 } 2068 2069 /** 2070 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2071 * 2072 * Description: 2073 * Macro that given an attr e.g. 2074 * hba_queue_depth expands into a function with the name 2075 * lpfc_hba_queue_depth_show 2076 * 2077 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2078 * @dev: class device that is converted into a Scsi_host. 2079 * @attr: device attribute, not used. 2080 * @buf: on return contains the attribute value in hexadecimal. 2081 * 2082 * Returns: length of formatted string. 2083 **/ 2084 #define lpfc_vport_param_hex_show(attr) \ 2085 static ssize_t \ 2086 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2087 char *buf) \ 2088 { \ 2089 struct Scsi_Host *shost = class_to_shost(dev);\ 2090 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2091 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2092 } 2093 2094 /** 2095 * lpfc_vport_param_init - Initialize a vport cfg attribute 2096 * 2097 * Description: 2098 * Macro that given an attr e.g. hba_queue_depth expands 2099 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2100 * takes a default argument, a minimum and maximum argument. 2101 * 2102 * lpfc_##attr##_init: validates the min and max values then sets the 2103 * adapter config field accordingly, or uses the default if out of range 2104 * and prints an error message. 2105 * @phba: pointer the the adapter structure. 2106 * @val: integer attribute value. 2107 * 2108 * Returns: 2109 * zero on success 2110 * -EINVAL if default used 2111 **/ 2112 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2113 static int \ 2114 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2115 { \ 2116 if (lpfc_rangecheck(val, minval, maxval)) {\ 2117 vport->cfg_##attr = val;\ 2118 return 0;\ 2119 }\ 2120 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2121 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2122 "allowed range is ["#minval", "#maxval"]\n", val); \ 2123 vport->cfg_##attr = default;\ 2124 return -EINVAL;\ 2125 } 2126 2127 /** 2128 * lpfc_vport_param_set - Set a vport cfg attribute 2129 * 2130 * Description: 2131 * Macro that given an attr e.g. hba_queue_depth expands 2132 * into a function with the name lpfc_hba_queue_depth_set 2133 * 2134 * lpfc_##attr##_set: validates the min and max values then sets the 2135 * adapter config field if in the valid range. prints error message 2136 * and does not set the parameter if invalid. 2137 * @phba: pointer the the adapter structure. 2138 * @val: integer attribute value. 2139 * 2140 * Returns: 2141 * zero on success 2142 * -EINVAL if val is invalid 2143 **/ 2144 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2145 static int \ 2146 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2147 { \ 2148 if (lpfc_rangecheck(val, minval, maxval)) {\ 2149 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2150 "3053 lpfc_" #attr \ 2151 " changed from %d (x%x) to %d (x%x)\n", \ 2152 vport->cfg_##attr, vport->cfg_##attr, \ 2153 val, val); \ 2154 vport->cfg_##attr = val;\ 2155 return 0;\ 2156 }\ 2157 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2158 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2159 "allowed range is ["#minval", "#maxval"]\n", val); \ 2160 return -EINVAL;\ 2161 } 2162 2163 /** 2164 * lpfc_vport_param_store - Set a vport attribute 2165 * 2166 * Description: 2167 * Macro that given an attr e.g. hba_queue_depth 2168 * expands into a function with the name lpfc_hba_queue_depth_store 2169 * 2170 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2171 * use the lpfc_##attr##_set function to set the value. 2172 * @cdev: class device that is converted into a Scsi_host. 2173 * @buf: contains the attribute value in decimal. 2174 * @count: not used. 2175 * 2176 * Returns: 2177 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2178 * length of buffer upon success. 2179 **/ 2180 #define lpfc_vport_param_store(attr) \ 2181 static ssize_t \ 2182 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2183 const char *buf, size_t count) \ 2184 { \ 2185 struct Scsi_Host *shost = class_to_shost(dev);\ 2186 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2187 uint val = 0;\ 2188 if (!isdigit(buf[0]))\ 2189 return -EINVAL;\ 2190 if (sscanf(buf, "%i", &val) != 1)\ 2191 return -EINVAL;\ 2192 if (lpfc_##attr##_set(vport, val) == 0) \ 2193 return strlen(buf);\ 2194 else \ 2195 return -EINVAL;\ 2196 } 2197 2198 2199 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2200 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2201 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2202 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2203 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2204 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2205 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2206 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2207 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2208 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2209 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2210 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2211 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2212 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2213 lpfc_link_state_store); 2214 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2215 lpfc_option_rom_version_show, NULL); 2216 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2217 lpfc_num_discovered_ports_show, NULL); 2218 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2219 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2220 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); 2221 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL); 2222 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2223 lpfc_board_mode_show, lpfc_board_mode_store); 2224 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2225 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2226 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2227 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2228 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2229 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2230 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2231 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2232 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL); 2233 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL); 2234 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL); 2235 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL); 2236 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO, 2237 lpfc_sriov_hw_max_virtfn_show, NULL); 2238 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2239 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2240 NULL); 2241 2242 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2243 #define WWN_SZ 8 2244 /** 2245 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2246 * @buf: WWN string. 2247 * @cnt: Length of string. 2248 * @wwn: Array to receive converted wwn value. 2249 * 2250 * Returns: 2251 * -EINVAL if the buffer does not contain a valid wwn 2252 * 0 success 2253 **/ 2254 static size_t 2255 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2256 { 2257 unsigned int i, j; 2258 2259 /* Count may include a LF at end of string */ 2260 if (buf[cnt-1] == '\n') 2261 cnt--; 2262 2263 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2264 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2265 return -EINVAL; 2266 2267 memset(wwn, 0, WWN_SZ); 2268 2269 /* Validate and store the new name */ 2270 for (i = 0, j = 0; i < 16; i++) { 2271 if ((*buf >= 'a') && (*buf <= 'f')) 2272 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2273 else if ((*buf >= 'A') && (*buf <= 'F')) 2274 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2275 else if ((*buf >= '0') && (*buf <= '9')) 2276 j = ((j << 4) | (*buf++ - '0')); 2277 else 2278 return -EINVAL; 2279 if (i % 2) { 2280 wwn[i/2] = j & 0xff; 2281 j = 0; 2282 } 2283 } 2284 return 0; 2285 } 2286 /** 2287 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2288 * @dev: class device that is converted into a Scsi_host. 2289 * @attr: device attribute, not used. 2290 * @buf: containing the string lpfc_soft_wwn_key. 2291 * @count: must be size of lpfc_soft_wwn_key. 2292 * 2293 * Returns: 2294 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2295 * length of buf indicates success 2296 **/ 2297 static ssize_t 2298 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2299 const char *buf, size_t count) 2300 { 2301 struct Scsi_Host *shost = class_to_shost(dev); 2302 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2303 struct lpfc_hba *phba = vport->phba; 2304 unsigned int cnt = count; 2305 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2306 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2307 2308 /* 2309 * We're doing a simple sanity check for soft_wwpn setting. 2310 * We require that the user write a specific key to enable 2311 * the soft_wwpn attribute to be settable. Once the attribute 2312 * is written, the enable key resets. If further updates are 2313 * desired, the key must be written again to re-enable the 2314 * attribute. 2315 * 2316 * The "key" is not secret - it is a hardcoded string shown 2317 * here. The intent is to protect against the random user or 2318 * application that is just writing attributes. 2319 */ 2320 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2322 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2323 " be enabled: fawwpn is enabled\n"); 2324 return -EINVAL; 2325 } 2326 2327 /* count may include a LF at end of string */ 2328 if (buf[cnt-1] == '\n') 2329 cnt--; 2330 2331 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2332 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2333 return -EINVAL; 2334 2335 phba->soft_wwn_enable = 1; 2336 2337 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2338 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2339 phba->brd_no); 2340 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2341 " The soft_wwpn feature is not supported by Broadcom."); 2342 2343 return count; 2344 } 2345 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, 2346 lpfc_soft_wwn_enable_store); 2347 2348 /** 2349 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2350 * @dev: class device that is converted into a Scsi_host. 2351 * @attr: device attribute, not used. 2352 * @buf: on return contains the wwpn in hexadecimal. 2353 * 2354 * Returns: size of formatted string. 2355 **/ 2356 static ssize_t 2357 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2358 char *buf) 2359 { 2360 struct Scsi_Host *shost = class_to_shost(dev); 2361 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2362 struct lpfc_hba *phba = vport->phba; 2363 2364 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2365 (unsigned long long)phba->cfg_soft_wwpn); 2366 } 2367 2368 /** 2369 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2370 * @dev class device that is converted into a Scsi_host. 2371 * @attr: device attribute, not used. 2372 * @buf: contains the wwpn in hexadecimal. 2373 * @count: number of wwpn bytes in buf 2374 * 2375 * Returns: 2376 * -EACCES hba reset not enabled, adapter over temp 2377 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2378 * -EIO error taking adapter offline or online 2379 * value of count on success 2380 **/ 2381 static ssize_t 2382 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2383 const char *buf, size_t count) 2384 { 2385 struct Scsi_Host *shost = class_to_shost(dev); 2386 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2387 struct lpfc_hba *phba = vport->phba; 2388 struct completion online_compl; 2389 int stat1 = 0, stat2 = 0; 2390 unsigned int cnt = count; 2391 u8 wwpn[WWN_SZ]; 2392 int rc; 2393 2394 if (!phba->cfg_enable_hba_reset) 2395 return -EACCES; 2396 spin_lock_irq(&phba->hbalock); 2397 if (phba->over_temp_state == HBA_OVER_TEMP) { 2398 spin_unlock_irq(&phba->hbalock); 2399 return -EACCES; 2400 } 2401 spin_unlock_irq(&phba->hbalock); 2402 /* count may include a LF at end of string */ 2403 if (buf[cnt-1] == '\n') 2404 cnt--; 2405 2406 if (!phba->soft_wwn_enable) 2407 return -EINVAL; 2408 2409 /* lock setting wwpn, wwnn down */ 2410 phba->soft_wwn_enable = 0; 2411 2412 rc = lpfc_wwn_set(buf, cnt, wwpn); 2413 if (rc) { 2414 /* not able to set wwpn, unlock it */ 2415 phba->soft_wwn_enable = 1; 2416 return rc; 2417 } 2418 2419 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2420 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2421 if (phba->cfg_soft_wwnn) 2422 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2423 2424 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2425 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2426 2427 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2428 if (stat1) 2429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2430 "0463 lpfc_soft_wwpn attribute set failed to " 2431 "reinit adapter - %d\n", stat1); 2432 init_completion(&online_compl); 2433 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2434 LPFC_EVT_ONLINE); 2435 if (rc == 0) 2436 return -ENOMEM; 2437 2438 wait_for_completion(&online_compl); 2439 if (stat2) 2440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2441 "0464 lpfc_soft_wwpn attribute set failed to " 2442 "reinit adapter - %d\n", stat2); 2443 return (stat1 || stat2) ? -EIO : count; 2444 } 2445 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR, 2446 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); 2447 2448 /** 2449 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2450 * @dev: class device that is converted into a Scsi_host. 2451 * @attr: device attribute, not used. 2452 * @buf: on return contains the wwnn in hexadecimal. 2453 * 2454 * Returns: size of formatted string. 2455 **/ 2456 static ssize_t 2457 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2458 char *buf) 2459 { 2460 struct Scsi_Host *shost = class_to_shost(dev); 2461 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2462 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2463 (unsigned long long)phba->cfg_soft_wwnn); 2464 } 2465 2466 /** 2467 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2468 * @cdev: class device that is converted into a Scsi_host. 2469 * @buf: contains the ww node name in hexadecimal. 2470 * @count: number of wwnn bytes in buf. 2471 * 2472 * Returns: 2473 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2474 * value of count on success 2475 **/ 2476 static ssize_t 2477 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2478 const char *buf, size_t count) 2479 { 2480 struct Scsi_Host *shost = class_to_shost(dev); 2481 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2482 unsigned int cnt = count; 2483 u8 wwnn[WWN_SZ]; 2484 int rc; 2485 2486 /* count may include a LF at end of string */ 2487 if (buf[cnt-1] == '\n') 2488 cnt--; 2489 2490 if (!phba->soft_wwn_enable) 2491 return -EINVAL; 2492 2493 rc = lpfc_wwn_set(buf, cnt, wwnn); 2494 if (rc) { 2495 /* Allow wwnn to be set many times, as long as the enable 2496 * is set. However, once the wwpn is set, everything locks. 2497 */ 2498 return rc; 2499 } 2500 2501 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2502 2503 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2504 "lpfc%d: soft_wwnn set. Value will take effect upon " 2505 "setting of the soft_wwpn\n", phba->brd_no); 2506 2507 return count; 2508 } 2509 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR, 2510 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store); 2511 2512 /** 2513 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2514 * Optimized Access Storage (OAS) operations. 2515 * @dev: class device that is converted into a Scsi_host. 2516 * @attr: device attribute, not used. 2517 * @buf: buffer for passing information. 2518 * 2519 * Returns: 2520 * value of count 2521 **/ 2522 static ssize_t 2523 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2524 char *buf) 2525 { 2526 struct Scsi_Host *shost = class_to_shost(dev); 2527 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2528 2529 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2530 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2531 } 2532 2533 /** 2534 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2535 * Optimized Access Storage (OAS) operations. 2536 * @dev: class device that is converted into a Scsi_host. 2537 * @attr: device attribute, not used. 2538 * @buf: buffer for passing information. 2539 * @count: Size of the data buffer. 2540 * 2541 * Returns: 2542 * -EINVAL count is invalid, invalid wwpn byte invalid 2543 * -EPERM oas is not supported by hba 2544 * value of count on success 2545 **/ 2546 static ssize_t 2547 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2548 const char *buf, size_t count) 2549 { 2550 struct Scsi_Host *shost = class_to_shost(dev); 2551 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2552 unsigned int cnt = count; 2553 uint8_t wwpn[WWN_SZ]; 2554 int rc; 2555 2556 if (!phba->cfg_fof) 2557 return -EPERM; 2558 2559 /* count may include a LF at end of string */ 2560 if (buf[cnt-1] == '\n') 2561 cnt--; 2562 2563 rc = lpfc_wwn_set(buf, cnt, wwpn); 2564 if (rc) 2565 return rc; 2566 2567 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2568 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2569 if (wwn_to_u64(wwpn) == 0) 2570 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2571 else 2572 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2573 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2574 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2575 return count; 2576 } 2577 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2578 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2579 2580 /** 2581 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2582 * Optimized Access Storage (OAS) operations. 2583 * @dev: class device that is converted into a Scsi_host. 2584 * @attr: device attribute, not used. 2585 * @buf: buffer for passing information. 2586 * 2587 * Returns: 2588 * value of count 2589 **/ 2590 static ssize_t 2591 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2592 char *buf) 2593 { 2594 struct Scsi_Host *shost = class_to_shost(dev); 2595 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2596 2597 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2598 } 2599 2600 /** 2601 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 2602 * Optimized Access Storage (OAS) operations. 2603 * @dev: class device that is converted into a Scsi_host. 2604 * @attr: device attribute, not used. 2605 * @buf: buffer for passing information. 2606 * @count: Size of the data buffer. 2607 * 2608 * Returns: 2609 * -EINVAL count is invalid, invalid wwpn byte invalid 2610 * -EPERM oas is not supported by hba 2611 * value of count on success 2612 **/ 2613 static ssize_t 2614 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 2615 const char *buf, size_t count) 2616 { 2617 struct Scsi_Host *shost = class_to_shost(dev); 2618 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2619 unsigned int cnt = count; 2620 unsigned long val; 2621 int ret; 2622 2623 if (!phba->cfg_fof) 2624 return -EPERM; 2625 2626 /* count may include a LF at end of string */ 2627 if (buf[cnt-1] == '\n') 2628 cnt--; 2629 2630 ret = kstrtoul(buf, 0, &val); 2631 if (ret || (val > 0x7f)) 2632 return -EINVAL; 2633 2634 if (val) 2635 phba->cfg_oas_priority = (uint8_t)val; 2636 else 2637 phba->cfg_oas_priority = phba->cfg_XLanePriority; 2638 return count; 2639 } 2640 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 2641 lpfc_oas_priority_show, lpfc_oas_priority_store); 2642 2643 /** 2644 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 2645 * for Optimized Access Storage (OAS) operations. 2646 * @dev: class device that is converted into a Scsi_host. 2647 * @attr: device attribute, not used. 2648 * @buf: buffer for passing information. 2649 * 2650 * Returns: 2651 * value of count on success 2652 **/ 2653 static ssize_t 2654 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 2655 char *buf) 2656 { 2657 struct Scsi_Host *shost = class_to_shost(dev); 2658 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2659 2660 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2661 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 2662 } 2663 2664 /** 2665 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 2666 * for Optimized Access Storage (OAS) operations. 2667 * @dev: class device that is converted into a Scsi_host. 2668 * @attr: device attribute, not used. 2669 * @buf: buffer for passing information. 2670 * @count: Size of the data buffer. 2671 * 2672 * Returns: 2673 * -EINVAL count is invalid, invalid wwpn byte invalid 2674 * -EPERM oas is not supported by hba 2675 * value of count on success 2676 **/ 2677 static ssize_t 2678 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 2679 const char *buf, size_t count) 2680 { 2681 struct Scsi_Host *shost = class_to_shost(dev); 2682 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2683 unsigned int cnt = count; 2684 uint8_t wwpn[WWN_SZ]; 2685 int rc; 2686 2687 if (!phba->cfg_fof) 2688 return -EPERM; 2689 2690 /* count may include a LF at end of string */ 2691 if (buf[cnt-1] == '\n') 2692 cnt--; 2693 2694 rc = lpfc_wwn_set(buf, cnt, wwpn); 2695 if (rc) 2696 return rc; 2697 2698 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2699 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2700 if (wwn_to_u64(wwpn) == 0) 2701 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 2702 else 2703 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 2704 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2705 if (phba->cfg_oas_priority == 0) 2706 phba->cfg_oas_priority = phba->cfg_XLanePriority; 2707 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2708 return count; 2709 } 2710 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 2711 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 2712 2713 /** 2714 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 2715 * of whether luns will be enabled or disabled 2716 * for Optimized Access Storage (OAS) operations. 2717 * @dev: class device that is converted into a Scsi_host. 2718 * @attr: device attribute, not used. 2719 * @buf: buffer for passing information. 2720 * 2721 * Returns: 2722 * size of formatted string. 2723 **/ 2724 static ssize_t 2725 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 2726 char *buf) 2727 { 2728 struct Scsi_Host *shost = class_to_shost(dev); 2729 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2730 2731 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 2732 } 2733 2734 /** 2735 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 2736 * of whether luns will be enabled or disabled 2737 * for Optimized Access Storage (OAS) operations. 2738 * @dev: class device that is converted into a Scsi_host. 2739 * @attr: device attribute, not used. 2740 * @buf: buffer for passing information. 2741 * @count: Size of the data buffer. 2742 * 2743 * Returns: 2744 * -EINVAL count is invalid, invalid wwpn byte invalid 2745 * -EPERM oas is not supported by hba 2746 * value of count on success 2747 **/ 2748 static ssize_t 2749 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 2750 const char *buf, size_t count) 2751 { 2752 struct Scsi_Host *shost = class_to_shost(dev); 2753 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2754 int val = 0; 2755 2756 if (!phba->cfg_fof) 2757 return -EPERM; 2758 2759 if (!isdigit(buf[0])) 2760 return -EINVAL; 2761 2762 if (sscanf(buf, "%i", &val) != 1) 2763 return -EINVAL; 2764 2765 if ((val != 0) && (val != 1)) 2766 return -EINVAL; 2767 2768 phba->cfg_oas_lun_state = val; 2769 return strlen(buf); 2770 } 2771 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 2772 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 2773 2774 /** 2775 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 2776 * Storage (OAS) lun returned by the 2777 * lpfc_oas_lun_show function. 2778 * @dev: class device that is converted into a Scsi_host. 2779 * @attr: device attribute, not used. 2780 * @buf: buffer for passing information. 2781 * 2782 * Returns: 2783 * size of formatted string. 2784 **/ 2785 static ssize_t 2786 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 2787 char *buf) 2788 { 2789 struct Scsi_Host *shost = class_to_shost(dev); 2790 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2791 2792 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 2793 return -EFAULT; 2794 2795 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 2796 } 2797 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 2798 lpfc_oas_lun_status_show, NULL); 2799 2800 2801 /** 2802 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 2803 * (OAS) operations. 2804 * @phba: lpfc_hba pointer. 2805 * @ndlp: pointer to fcp target node. 2806 * @lun: the fc lun for setting oas state. 2807 * @oas_state: the oas state to be set to the lun. 2808 * 2809 * Returns: 2810 * SUCCESS : 0 2811 * -EPERM OAS is not enabled or not supported by this port. 2812 * 2813 */ 2814 static size_t 2815 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2816 uint8_t tgt_wwpn[], uint64_t lun, 2817 uint32_t oas_state, uint8_t pri) 2818 { 2819 2820 int rc = 0; 2821 2822 if (!phba->cfg_fof) 2823 return -EPERM; 2824 2825 if (oas_state) { 2826 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 2827 (struct lpfc_name *)tgt_wwpn, 2828 lun, pri)) 2829 rc = -ENOMEM; 2830 } else { 2831 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 2832 (struct lpfc_name *)tgt_wwpn, lun, pri); 2833 } 2834 return rc; 2835 2836 } 2837 2838 /** 2839 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 2840 * Access Storage (OAS) operations. 2841 * @phba: lpfc_hba pointer. 2842 * @vpt_wwpn: wwpn of the vport associated with the returned lun 2843 * @tgt_wwpn: wwpn of the target associated with the returned lun 2844 * @lun_status: status of the lun returned lun 2845 * 2846 * Returns the first or next lun enabled for OAS operations for the vport/target 2847 * specified. If a lun is found, its vport wwpn, target wwpn and status is 2848 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 2849 * 2850 * Return: 2851 * lun that is OAS enabled for the vport/target 2852 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 2853 */ 2854 static uint64_t 2855 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2856 uint8_t tgt_wwpn[], uint32_t *lun_status, 2857 uint32_t *lun_pri) 2858 { 2859 uint64_t found_lun; 2860 2861 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 2862 return NOT_OAS_ENABLED_LUN; 2863 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 2864 phba->sli4_hba.oas_next_vpt_wwpn, 2865 (struct lpfc_name *) 2866 phba->sli4_hba.oas_next_tgt_wwpn, 2867 &phba->sli4_hba.oas_next_lun, 2868 (struct lpfc_name *)vpt_wwpn, 2869 (struct lpfc_name *)tgt_wwpn, 2870 &found_lun, lun_status, lun_pri)) 2871 return found_lun; 2872 else 2873 return NOT_OAS_ENABLED_LUN; 2874 } 2875 2876 /** 2877 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 2878 * @phba: lpfc_hba pointer. 2879 * @vpt_wwpn: vport wwpn by reference. 2880 * @tgt_wwpn: target wwpn by reference. 2881 * @lun: the fc lun for setting oas state. 2882 * @oas_state: the oas state to be set to the oas_lun. 2883 * 2884 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 2885 * a lun for OAS operations. 2886 * 2887 * Return: 2888 * SUCCESS: 0 2889 * -ENOMEM: failed to enable an lun for OAS operations 2890 * -EPERM: OAS is not enabled 2891 */ 2892 static ssize_t 2893 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2894 uint8_t tgt_wwpn[], uint64_t lun, 2895 uint32_t oas_state, uint8_t pri) 2896 { 2897 2898 int rc; 2899 2900 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 2901 oas_state, pri); 2902 return rc; 2903 } 2904 2905 /** 2906 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 2907 * @dev: class device that is converted into a Scsi_host. 2908 * @attr: device attribute, not used. 2909 * @buf: buffer for passing information. 2910 * 2911 * This routine returns a lun enabled for OAS each time the function 2912 * is called. 2913 * 2914 * Returns: 2915 * SUCCESS: size of formatted string. 2916 * -EFAULT: target or vport wwpn was not set properly. 2917 * -EPERM: oas is not enabled. 2918 **/ 2919 static ssize_t 2920 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 2921 char *buf) 2922 { 2923 struct Scsi_Host *shost = class_to_shost(dev); 2924 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2925 2926 uint64_t oas_lun; 2927 int len = 0; 2928 2929 if (!phba->cfg_fof) 2930 return -EPERM; 2931 2932 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 2933 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 2934 return -EFAULT; 2935 2936 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 2937 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 2938 return -EFAULT; 2939 2940 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 2941 phba->cfg_oas_tgt_wwpn, 2942 &phba->cfg_oas_lun_status, 2943 &phba->cfg_oas_priority); 2944 if (oas_lun != NOT_OAS_ENABLED_LUN) 2945 phba->cfg_oas_flags |= OAS_LUN_VALID; 2946 2947 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 2948 2949 return len; 2950 } 2951 2952 /** 2953 * lpfc_oas_lun_store - Sets the OAS state for lun 2954 * @dev: class device that is converted into a Scsi_host. 2955 * @attr: device attribute, not used. 2956 * @buf: buffer for passing information. 2957 * 2958 * This function sets the OAS state for lun. Before this function is called, 2959 * the vport wwpn, target wwpn, and oas state need to be set. 2960 * 2961 * Returns: 2962 * SUCCESS: size of formatted string. 2963 * -EFAULT: target or vport wwpn was not set properly. 2964 * -EPERM: oas is not enabled. 2965 * size of formatted string. 2966 **/ 2967 static ssize_t 2968 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 2969 const char *buf, size_t count) 2970 { 2971 struct Scsi_Host *shost = class_to_shost(dev); 2972 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2973 uint64_t scsi_lun; 2974 uint32_t pri; 2975 ssize_t rc; 2976 2977 if (!phba->cfg_fof) 2978 return -EPERM; 2979 2980 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 2981 return -EFAULT; 2982 2983 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 2984 return -EFAULT; 2985 2986 if (!isdigit(buf[0])) 2987 return -EINVAL; 2988 2989 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 2990 return -EINVAL; 2991 2992 pri = phba->cfg_oas_priority; 2993 if (pri == 0) 2994 pri = phba->cfg_XLanePriority; 2995 2996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2997 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 2998 "priority 0x%x with oas state %d\n", 2999 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3000 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3001 pri, phba->cfg_oas_lun_state); 3002 3003 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3004 phba->cfg_oas_tgt_wwpn, scsi_lun, 3005 phba->cfg_oas_lun_state, pri); 3006 if (rc) 3007 return rc; 3008 3009 return count; 3010 } 3011 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3012 lpfc_oas_lun_show, lpfc_oas_lun_store); 3013 3014 int lpfc_enable_nvmet_cnt; 3015 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3016 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3017 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3018 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3019 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3020 3021 static int lpfc_poll = 0; 3022 module_param(lpfc_poll, int, S_IRUGO); 3023 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3024 " 0 - none," 3025 " 1 - poll with interrupts enabled" 3026 " 3 - poll and disable FCP ring interrupts"); 3027 3028 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR, 3029 lpfc_poll_show, lpfc_poll_store); 3030 3031 int lpfc_no_hba_reset_cnt; 3032 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3033 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3034 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3035 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3036 3037 LPFC_ATTR(sli_mode, 0, 0, 3, 3038 "SLI mode selector:" 3039 " 0 - auto (SLI-3 if supported)," 3040 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3041 " 3 - select SLI-3"); 3042 3043 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3044 "Enable NPIV functionality"); 3045 3046 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3047 "FCF Fast failover=1 Priority failover=2"); 3048 3049 /* 3050 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3051 # 0x0 = disabled, XRI/OXID use not tracked. 3052 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3053 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3054 */ 3055 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3056 "Enable RRQ functionality"); 3057 3058 /* 3059 # lpfc_suppress_link_up: Bring link up at initialization 3060 # 0x0 = bring link up (issue MBX_INIT_LINK) 3061 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3062 # 0x2 = never bring up link 3063 # Default value is 0. 3064 */ 3065 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3066 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3067 "Suppress Link Up at initialization"); 3068 /* 3069 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3070 # 1 - (1024) 3071 # 2 - (2048) 3072 # 3 - (3072) 3073 # 4 - (4096) 3074 # 5 - (5120) 3075 */ 3076 static ssize_t 3077 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3078 { 3079 struct Scsi_Host *shost = class_to_shost(dev); 3080 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3081 3082 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3083 } 3084 3085 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3086 lpfc_iocb_hw_show, NULL); 3087 static ssize_t 3088 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3089 { 3090 struct Scsi_Host *shost = class_to_shost(dev); 3091 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3092 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3093 3094 return snprintf(buf, PAGE_SIZE, "%d\n", pring->txq_max); 3095 } 3096 3097 static DEVICE_ATTR(txq_hw, S_IRUGO, 3098 lpfc_txq_hw_show, NULL); 3099 static ssize_t 3100 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3101 char *buf) 3102 { 3103 struct Scsi_Host *shost = class_to_shost(dev); 3104 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3105 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3106 3107 return snprintf(buf, PAGE_SIZE, "%d\n", pring->txcmplq_max); 3108 } 3109 3110 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3111 lpfc_txcmplq_hw_show, NULL); 3112 3113 LPFC_ATTR_R(iocb_cnt, 2, 1, 5, 3114 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); 3115 3116 /* 3117 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3118 # until the timer expires. Value range is [0,255]. Default value is 30. 3119 */ 3120 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3121 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3122 module_param(lpfc_nodev_tmo, int, 0); 3123 MODULE_PARM_DESC(lpfc_nodev_tmo, 3124 "Seconds driver will hold I/O waiting " 3125 "for a device to come back"); 3126 3127 /** 3128 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3129 * @dev: class converted to a Scsi_host structure. 3130 * @attr: device attribute, not used. 3131 * @buf: on return contains the dev loss timeout in decimal. 3132 * 3133 * Returns: size of formatted string. 3134 **/ 3135 static ssize_t 3136 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3137 char *buf) 3138 { 3139 struct Scsi_Host *shost = class_to_shost(dev); 3140 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3141 3142 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3143 } 3144 3145 /** 3146 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3147 * @vport: lpfc vport structure pointer. 3148 * @val: contains the nodev timeout value. 3149 * 3150 * Description: 3151 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3152 * a kernel error message is printed and zero is returned. 3153 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3154 * Otherwise nodev tmo is set to the default value. 3155 * 3156 * Returns: 3157 * zero if already set or if val is in range 3158 * -EINVAL val out of range 3159 **/ 3160 static int 3161 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3162 { 3163 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3164 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3165 if (val != LPFC_DEF_DEVLOSS_TMO) 3166 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3167 "0407 Ignoring lpfc_nodev_tmo module " 3168 "parameter because lpfc_devloss_tmo " 3169 "is set.\n"); 3170 return 0; 3171 } 3172 3173 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3174 vport->cfg_nodev_tmo = val; 3175 vport->cfg_devloss_tmo = val; 3176 return 0; 3177 } 3178 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3179 "0400 lpfc_nodev_tmo attribute cannot be set to" 3180 " %d, allowed range is [%d, %d]\n", 3181 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3182 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3183 return -EINVAL; 3184 } 3185 3186 /** 3187 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3188 * @vport: lpfc vport structure pointer. 3189 * 3190 * Description: 3191 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3192 **/ 3193 static void 3194 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3195 { 3196 struct Scsi_Host *shost; 3197 struct lpfc_nodelist *ndlp; 3198 3199 shost = lpfc_shost_from_vport(vport); 3200 spin_lock_irq(shost->host_lock); 3201 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3202 if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport) 3203 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3204 spin_unlock_irq(shost->host_lock); 3205 } 3206 3207 /** 3208 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3209 * @vport: lpfc vport structure pointer. 3210 * @val: contains the tmo value. 3211 * 3212 * Description: 3213 * If the devloss tmo is already set or the vport dev loss tmo has changed 3214 * then a kernel error message is printed and zero is returned. 3215 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3216 * Otherwise nodev tmo is set to the default value. 3217 * 3218 * Returns: 3219 * zero if already set or if val is in range 3220 * -EINVAL val out of range 3221 **/ 3222 static int 3223 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3224 { 3225 if (vport->dev_loss_tmo_changed || 3226 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3227 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3228 "0401 Ignoring change to lpfc_nodev_tmo " 3229 "because lpfc_devloss_tmo is set.\n"); 3230 return 0; 3231 } 3232 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3233 vport->cfg_nodev_tmo = val; 3234 vport->cfg_devloss_tmo = val; 3235 /* 3236 * For compat: set the fc_host dev loss so new rports 3237 * will get the value. 3238 */ 3239 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3240 lpfc_update_rport_devloss_tmo(vport); 3241 return 0; 3242 } 3243 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3244 "0403 lpfc_nodev_tmo attribute cannot be set to " 3245 "%d, allowed range is [%d, %d]\n", 3246 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3247 return -EINVAL; 3248 } 3249 3250 lpfc_vport_param_store(nodev_tmo) 3251 3252 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR, 3253 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store); 3254 3255 /* 3256 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3257 # disappear until the timer expires. Value range is [0,255]. Default 3258 # value is 30. 3259 */ 3260 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3261 MODULE_PARM_DESC(lpfc_devloss_tmo, 3262 "Seconds driver will hold I/O waiting " 3263 "for a device to come back"); 3264 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3265 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3266 lpfc_vport_param_show(devloss_tmo) 3267 3268 /** 3269 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3270 * @vport: lpfc vport structure pointer. 3271 * @val: contains the tmo value. 3272 * 3273 * Description: 3274 * If val is in a valid range then set the vport nodev tmo, 3275 * devloss tmo, also set the vport dev loss tmo changed flag. 3276 * Else a kernel error message is printed. 3277 * 3278 * Returns: 3279 * zero if val is in range 3280 * -EINVAL val out of range 3281 **/ 3282 static int 3283 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3284 { 3285 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3286 vport->cfg_nodev_tmo = val; 3287 vport->cfg_devloss_tmo = val; 3288 vport->dev_loss_tmo_changed = 1; 3289 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3290 lpfc_update_rport_devloss_tmo(vport); 3291 return 0; 3292 } 3293 3294 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3295 "0404 lpfc_devloss_tmo attribute cannot be set to " 3296 "%d, allowed range is [%d, %d]\n", 3297 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3298 return -EINVAL; 3299 } 3300 3301 lpfc_vport_param_store(devloss_tmo) 3302 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR, 3303 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store); 3304 3305 /* 3306 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3307 * lpfc_suppress_rsp = 0 Disable 3308 * lpfc_suppress_rsp = 1 Enable (default) 3309 * 3310 */ 3311 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3312 "Enable suppress rsp feature is firmware supports it"); 3313 3314 /* 3315 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3316 * lpfc_nvmet_mrq = 1 use a single RQ pair 3317 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3318 * 3319 */ 3320 LPFC_ATTR_R(nvmet_mrq, 3321 1, 1, 16, 3322 "Specify number of RQ pairs for processing NVMET cmds"); 3323 3324 /* 3325 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3326 * Supported Values: 1 - register just FCP 3327 * 3 - register both FCP and NVME 3328 * Supported values are [1,3]. Default value is 1 3329 */ 3330 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_FCP, 3331 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3332 "Define fc4 type to register with fabric."); 3333 3334 /* 3335 * lpfc_xri_split: Defines the division of XRI resources between SCSI and NVME 3336 * This parameter is only used if: 3337 * lpfc_enable_fc4_type is 3 - register both FCP and NVME and 3338 * port is not configured for NVMET. 3339 * 3340 * ELS/CT always get 10% of XRIs, up to a maximum of 250 3341 * The remaining XRIs get split up based on lpfc_xri_split per port: 3342 * 3343 * Supported Values are in percentages 3344 * the xri_split value is the percentage the SCSI port will get. The remaining 3345 * percentage will go to NVME. 3346 */ 3347 LPFC_ATTR_R(xri_split, 50, 10, 90, 3348 "Division of XRI resources between SCSI and NVME"); 3349 3350 /* 3351 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3352 # deluged with LOTS of information. 3353 # You can set a bit mask to record specific types of verbose messages: 3354 # See lpfc_logmsh.h for definitions. 3355 */ 3356 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3357 "Verbose logging bit-mask"); 3358 3359 /* 3360 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3361 # objects that have been registered with the nameserver after login. 3362 */ 3363 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3364 "Deregister nameserver objects before LOGO"); 3365 3366 /* 3367 # lun_queue_depth: This parameter is used to limit the number of outstanding 3368 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3369 # If this parameter value is greater than 1/8th the maximum number of exchanges 3370 # supported by the HBA port, then the lun queue depth will be reduced to 3371 # 1/8th the maximum number of exchanges. 3372 */ 3373 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3374 "Max number of FCP commands we can queue to a specific LUN"); 3375 3376 /* 3377 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3378 # commands per target port. Value range is [10,65535]. Default value is 65535. 3379 */ 3380 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535, 3381 "Max number of FCP commands we can queue to a specific target port"); 3382 3383 /* 3384 # hba_queue_depth: This parameter is used to limit the number of outstanding 3385 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3386 # value is greater than the maximum number of exchanges supported by the HBA, 3387 # then maximum number of exchanges supported by the HBA is used to determine 3388 # the hba_queue_depth. 3389 */ 3390 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3391 "Max number of FCP commands we can queue to a lpfc HBA"); 3392 3393 /* 3394 # peer_port_login: This parameter allows/prevents logins 3395 # between peer ports hosted on the same physical port. 3396 # When this parameter is set 0 peer ports of same physical port 3397 # are not allowed to login to each other. 3398 # When this parameter is set 1 peer ports of same physical port 3399 # are allowed to login to each other. 3400 # Default value of this parameter is 0. 3401 */ 3402 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3403 "Allow peer ports on the same physical port to login to each " 3404 "other."); 3405 3406 /* 3407 # restrict_login: This parameter allows/prevents logins 3408 # between Virtual Ports and remote initiators. 3409 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3410 # other initiators and will attempt to PLOGI all remote ports. 3411 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3412 # remote ports and will not attempt to PLOGI to other initiators. 3413 # This parameter does not restrict to the physical port. 3414 # This parameter does not restrict logins to Fabric resident remote ports. 3415 # Default value of this parameter is 1. 3416 */ 3417 static int lpfc_restrict_login = 1; 3418 module_param(lpfc_restrict_login, int, S_IRUGO); 3419 MODULE_PARM_DESC(lpfc_restrict_login, 3420 "Restrict virtual ports login to remote initiators."); 3421 lpfc_vport_param_show(restrict_login); 3422 3423 /** 3424 * lpfc_restrict_login_init - Set the vport restrict login flag 3425 * @vport: lpfc vport structure pointer. 3426 * @val: contains the restrict login value. 3427 * 3428 * Description: 3429 * If val is not in a valid range then log a kernel error message and set 3430 * the vport restrict login to one. 3431 * If the port type is physical clear the restrict login flag and return. 3432 * Else set the restrict login flag to val. 3433 * 3434 * Returns: 3435 * zero if val is in range 3436 * -EINVAL val out of range 3437 **/ 3438 static int 3439 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3440 { 3441 if (val < 0 || val > 1) { 3442 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3443 "0422 lpfc_restrict_login attribute cannot " 3444 "be set to %d, allowed range is [0, 1]\n", 3445 val); 3446 vport->cfg_restrict_login = 1; 3447 return -EINVAL; 3448 } 3449 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3450 vport->cfg_restrict_login = 0; 3451 return 0; 3452 } 3453 vport->cfg_restrict_login = val; 3454 return 0; 3455 } 3456 3457 /** 3458 * lpfc_restrict_login_set - Set the vport restrict login flag 3459 * @vport: lpfc vport structure pointer. 3460 * @val: contains the restrict login value. 3461 * 3462 * Description: 3463 * If val is not in a valid range then log a kernel error message and set 3464 * the vport restrict login to one. 3465 * If the port type is physical and the val is not zero log a kernel 3466 * error message, clear the restrict login flag and return zero. 3467 * Else set the restrict login flag to val. 3468 * 3469 * Returns: 3470 * zero if val is in range 3471 * -EINVAL val out of range 3472 **/ 3473 static int 3474 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3475 { 3476 if (val < 0 || val > 1) { 3477 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3478 "0425 lpfc_restrict_login attribute cannot " 3479 "be set to %d, allowed range is [0, 1]\n", 3480 val); 3481 vport->cfg_restrict_login = 1; 3482 return -EINVAL; 3483 } 3484 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3485 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3486 "0468 lpfc_restrict_login must be 0 for " 3487 "Physical ports.\n"); 3488 vport->cfg_restrict_login = 0; 3489 return 0; 3490 } 3491 vport->cfg_restrict_login = val; 3492 return 0; 3493 } 3494 lpfc_vport_param_store(restrict_login); 3495 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR, 3496 lpfc_restrict_login_show, lpfc_restrict_login_store); 3497 3498 /* 3499 # Some disk devices have a "select ID" or "select Target" capability. 3500 # From a protocol standpoint "select ID" usually means select the 3501 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3502 # annex" which contains a table that maps a "select ID" (a number 3503 # between 0 and 7F) to an ALPA. By default, for compatibility with 3504 # older drivers, the lpfc driver scans this table from low ALPA to high 3505 # ALPA. 3506 # 3507 # Turning on the scan-down variable (on = 1, off = 0) will 3508 # cause the lpfc driver to use an inverted table, effectively 3509 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3510 # 3511 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3512 # and will not work across a fabric. Also this parameter will take 3513 # effect only in the case when ALPA map is not available.) 3514 */ 3515 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3516 "Start scanning for devices from highest ALPA to lowest"); 3517 3518 /* 3519 # lpfc_topology: link topology for init link 3520 # 0x0 = attempt loop mode then point-to-point 3521 # 0x01 = internal loopback mode 3522 # 0x02 = attempt point-to-point mode only 3523 # 0x04 = attempt loop mode only 3524 # 0x06 = attempt point-to-point mode then loop 3525 # Set point-to-point mode if you want to run as an N_Port. 3526 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3527 # Default value is 0. 3528 */ 3529 LPFC_ATTR(topology, 0, 0, 6, 3530 "Select Fibre Channel topology"); 3531 3532 /** 3533 * lpfc_topology_set - Set the adapters topology field 3534 * @phba: lpfc_hba pointer. 3535 * @val: topology value. 3536 * 3537 * Description: 3538 * If val is in a valid range then set the adapter's topology field and 3539 * issue a lip; if the lip fails reset the topology to the old value. 3540 * 3541 * If the value is not in range log a kernel error message and return an error. 3542 * 3543 * Returns: 3544 * zero if val is in range and lip okay 3545 * non-zero return value from lpfc_issue_lip() 3546 * -EINVAL val out of range 3547 **/ 3548 static ssize_t 3549 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 3550 const char *buf, size_t count) 3551 { 3552 struct Scsi_Host *shost = class_to_shost(dev); 3553 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3554 struct lpfc_hba *phba = vport->phba; 3555 int val = 0; 3556 int nolip = 0; 3557 const char *val_buf = buf; 3558 int err; 3559 uint32_t prev_val; 3560 3561 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 3562 nolip = 1; 3563 val_buf = &buf[strlen("nolip ")]; 3564 } 3565 3566 if (!isdigit(val_buf[0])) 3567 return -EINVAL; 3568 if (sscanf(val_buf, "%i", &val) != 1) 3569 return -EINVAL; 3570 3571 if (val >= 0 && val <= 6) { 3572 prev_val = phba->cfg_topology; 3573 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 3574 val == 4) { 3575 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3576 "3113 Loop mode not supported at speed %d\n", 3577 val); 3578 return -EINVAL; 3579 } 3580 if (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC && 3581 val == 4) { 3582 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3583 "3114 Loop mode not supported\n"); 3584 return -EINVAL; 3585 } 3586 phba->cfg_topology = val; 3587 if (nolip) 3588 return strlen(buf); 3589 3590 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3591 "3054 lpfc_topology changed from %d to %d\n", 3592 prev_val, val); 3593 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 3594 phba->fc_topology_changed = 1; 3595 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 3596 if (err) { 3597 phba->cfg_topology = prev_val; 3598 return -EINVAL; 3599 } else 3600 return strlen(buf); 3601 } 3602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3603 "%d:0467 lpfc_topology attribute cannot be set to %d, " 3604 "allowed range is [0, 6]\n", 3605 phba->brd_no, val); 3606 return -EINVAL; 3607 } 3608 3609 lpfc_param_show(topology) 3610 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, 3611 lpfc_topology_show, lpfc_topology_store); 3612 3613 /** 3614 * lpfc_static_vport_show: Read callback function for 3615 * lpfc_static_vport sysfs file. 3616 * @dev: Pointer to class device object. 3617 * @attr: device attribute structure. 3618 * @buf: Data buffer. 3619 * 3620 * This function is the read call back function for 3621 * lpfc_static_vport sysfs file. The lpfc_static_vport 3622 * sysfs file report the mageability of the vport. 3623 **/ 3624 static ssize_t 3625 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 3626 char *buf) 3627 { 3628 struct Scsi_Host *shost = class_to_shost(dev); 3629 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3630 if (vport->vport_flag & STATIC_VPORT) 3631 sprintf(buf, "1\n"); 3632 else 3633 sprintf(buf, "0\n"); 3634 3635 return strlen(buf); 3636 } 3637 3638 /* 3639 * Sysfs attribute to control the statistical data collection. 3640 */ 3641 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO, 3642 lpfc_static_vport_show, NULL); 3643 3644 /** 3645 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 3646 * @dev: Pointer to class device. 3647 * @buf: Data buffer. 3648 * @count: Size of the data buffer. 3649 * 3650 * This function get called when a user write to the lpfc_stat_data_ctrl 3651 * sysfs file. This function parse the command written to the sysfs file 3652 * and take appropriate action. These commands are used for controlling 3653 * driver statistical data collection. 3654 * Following are the command this function handles. 3655 * 3656 * setbucket <bucket_type> <base> <step> 3657 * = Set the latency buckets. 3658 * destroybucket = destroy all the buckets. 3659 * start = start data collection 3660 * stop = stop data collection 3661 * reset = reset the collected data 3662 **/ 3663 static ssize_t 3664 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 3665 const char *buf, size_t count) 3666 { 3667 struct Scsi_Host *shost = class_to_shost(dev); 3668 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3669 struct lpfc_hba *phba = vport->phba; 3670 #define LPFC_MAX_DATA_CTRL_LEN 1024 3671 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 3672 unsigned long i; 3673 char *str_ptr, *token; 3674 struct lpfc_vport **vports; 3675 struct Scsi_Host *v_shost; 3676 char *bucket_type_str, *base_str, *step_str; 3677 unsigned long base, step, bucket_type; 3678 3679 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 3680 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 3681 return -EINVAL; 3682 3683 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 3684 str_ptr = &bucket_data[0]; 3685 /* Ignore this token - this is command token */ 3686 token = strsep(&str_ptr, "\t "); 3687 if (!token) 3688 return -EINVAL; 3689 3690 bucket_type_str = strsep(&str_ptr, "\t "); 3691 if (!bucket_type_str) 3692 return -EINVAL; 3693 3694 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 3695 bucket_type = LPFC_LINEAR_BUCKET; 3696 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 3697 bucket_type = LPFC_POWER2_BUCKET; 3698 else 3699 return -EINVAL; 3700 3701 base_str = strsep(&str_ptr, "\t "); 3702 if (!base_str) 3703 return -EINVAL; 3704 base = simple_strtoul(base_str, NULL, 0); 3705 3706 step_str = strsep(&str_ptr, "\t "); 3707 if (!step_str) 3708 return -EINVAL; 3709 step = simple_strtoul(step_str, NULL, 0); 3710 if (!step) 3711 return -EINVAL; 3712 3713 /* Block the data collection for every vport */ 3714 vports = lpfc_create_vport_work_array(phba); 3715 if (vports == NULL) 3716 return -ENOMEM; 3717 3718 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3719 v_shost = lpfc_shost_from_vport(vports[i]); 3720 spin_lock_irq(v_shost->host_lock); 3721 /* Block and reset data collection */ 3722 vports[i]->stat_data_blocked = 1; 3723 if (vports[i]->stat_data_enabled) 3724 lpfc_vport_reset_stat_data(vports[i]); 3725 spin_unlock_irq(v_shost->host_lock); 3726 } 3727 3728 /* Set the bucket attributes */ 3729 phba->bucket_type = bucket_type; 3730 phba->bucket_base = base; 3731 phba->bucket_step = step; 3732 3733 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3734 v_shost = lpfc_shost_from_vport(vports[i]); 3735 3736 /* Unblock data collection */ 3737 spin_lock_irq(v_shost->host_lock); 3738 vports[i]->stat_data_blocked = 0; 3739 spin_unlock_irq(v_shost->host_lock); 3740 } 3741 lpfc_destroy_vport_work_array(phba, vports); 3742 return strlen(buf); 3743 } 3744 3745 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 3746 vports = lpfc_create_vport_work_array(phba); 3747 if (vports == NULL) 3748 return -ENOMEM; 3749 3750 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3751 v_shost = lpfc_shost_from_vport(vports[i]); 3752 spin_lock_irq(shost->host_lock); 3753 vports[i]->stat_data_blocked = 1; 3754 lpfc_free_bucket(vport); 3755 vport->stat_data_enabled = 0; 3756 vports[i]->stat_data_blocked = 0; 3757 spin_unlock_irq(shost->host_lock); 3758 } 3759 lpfc_destroy_vport_work_array(phba, vports); 3760 phba->bucket_type = LPFC_NO_BUCKET; 3761 phba->bucket_base = 0; 3762 phba->bucket_step = 0; 3763 return strlen(buf); 3764 } 3765 3766 if (!strncmp(buf, "start", strlen("start"))) { 3767 /* If no buckets configured return error */ 3768 if (phba->bucket_type == LPFC_NO_BUCKET) 3769 return -EINVAL; 3770 spin_lock_irq(shost->host_lock); 3771 if (vport->stat_data_enabled) { 3772 spin_unlock_irq(shost->host_lock); 3773 return strlen(buf); 3774 } 3775 lpfc_alloc_bucket(vport); 3776 vport->stat_data_enabled = 1; 3777 spin_unlock_irq(shost->host_lock); 3778 return strlen(buf); 3779 } 3780 3781 if (!strncmp(buf, "stop", strlen("stop"))) { 3782 spin_lock_irq(shost->host_lock); 3783 if (vport->stat_data_enabled == 0) { 3784 spin_unlock_irq(shost->host_lock); 3785 return strlen(buf); 3786 } 3787 lpfc_free_bucket(vport); 3788 vport->stat_data_enabled = 0; 3789 spin_unlock_irq(shost->host_lock); 3790 return strlen(buf); 3791 } 3792 3793 if (!strncmp(buf, "reset", strlen("reset"))) { 3794 if ((phba->bucket_type == LPFC_NO_BUCKET) 3795 || !vport->stat_data_enabled) 3796 return strlen(buf); 3797 spin_lock_irq(shost->host_lock); 3798 vport->stat_data_blocked = 1; 3799 lpfc_vport_reset_stat_data(vport); 3800 vport->stat_data_blocked = 0; 3801 spin_unlock_irq(shost->host_lock); 3802 return strlen(buf); 3803 } 3804 return -EINVAL; 3805 } 3806 3807 3808 /** 3809 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 3810 * @dev: Pointer to class device object. 3811 * @buf: Data buffer. 3812 * 3813 * This function is the read call back function for 3814 * lpfc_stat_data_ctrl sysfs file. This function report the 3815 * current statistical data collection state. 3816 **/ 3817 static ssize_t 3818 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 3819 char *buf) 3820 { 3821 struct Scsi_Host *shost = class_to_shost(dev); 3822 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3823 struct lpfc_hba *phba = vport->phba; 3824 int index = 0; 3825 int i; 3826 char *bucket_type; 3827 unsigned long bucket_value; 3828 3829 switch (phba->bucket_type) { 3830 case LPFC_LINEAR_BUCKET: 3831 bucket_type = "linear"; 3832 break; 3833 case LPFC_POWER2_BUCKET: 3834 bucket_type = "power2"; 3835 break; 3836 default: 3837 bucket_type = "No Bucket"; 3838 break; 3839 } 3840 3841 sprintf(&buf[index], "Statistical Data enabled :%d, " 3842 "blocked :%d, Bucket type :%s, Bucket base :%d," 3843 " Bucket step :%d\nLatency Ranges :", 3844 vport->stat_data_enabled, vport->stat_data_blocked, 3845 bucket_type, phba->bucket_base, phba->bucket_step); 3846 index = strlen(buf); 3847 if (phba->bucket_type != LPFC_NO_BUCKET) { 3848 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 3849 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 3850 bucket_value = phba->bucket_base + 3851 phba->bucket_step * i; 3852 else 3853 bucket_value = phba->bucket_base + 3854 (1 << i) * phba->bucket_step; 3855 3856 if (index + 10 > PAGE_SIZE) 3857 break; 3858 sprintf(&buf[index], "%08ld ", bucket_value); 3859 index = strlen(buf); 3860 } 3861 } 3862 sprintf(&buf[index], "\n"); 3863 return strlen(buf); 3864 } 3865 3866 /* 3867 * Sysfs attribute to control the statistical data collection. 3868 */ 3869 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR, 3870 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store); 3871 3872 /* 3873 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 3874 */ 3875 3876 /* 3877 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 3878 * for each target. 3879 */ 3880 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 3881 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 3882 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 3883 3884 3885 /** 3886 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 3887 * @filp: sysfs file 3888 * @kobj: Pointer to the kernel object 3889 * @bin_attr: Attribute object 3890 * @buff: Buffer pointer 3891 * @off: File offset 3892 * @count: Buffer size 3893 * 3894 * This function is the read call back function for lpfc_drvr_stat_data 3895 * sysfs file. This function export the statistical data to user 3896 * applications. 3897 **/ 3898 static ssize_t 3899 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 3900 struct bin_attribute *bin_attr, 3901 char *buf, loff_t off, size_t count) 3902 { 3903 struct device *dev = container_of(kobj, struct device, 3904 kobj); 3905 struct Scsi_Host *shost = class_to_shost(dev); 3906 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3907 struct lpfc_hba *phba = vport->phba; 3908 int i = 0, index = 0; 3909 unsigned long nport_index; 3910 struct lpfc_nodelist *ndlp = NULL; 3911 nport_index = (unsigned long)off / 3912 MAX_STAT_DATA_SIZE_PER_TARGET; 3913 3914 if (!vport->stat_data_enabled || vport->stat_data_blocked 3915 || (phba->bucket_type == LPFC_NO_BUCKET)) 3916 return 0; 3917 3918 spin_lock_irq(shost->host_lock); 3919 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3920 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 3921 continue; 3922 3923 if (nport_index > 0) { 3924 nport_index--; 3925 continue; 3926 } 3927 3928 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 3929 > count) 3930 break; 3931 3932 if (!ndlp->lat_data) 3933 continue; 3934 3935 /* Print the WWN */ 3936 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 3937 ndlp->nlp_portname.u.wwn[0], 3938 ndlp->nlp_portname.u.wwn[1], 3939 ndlp->nlp_portname.u.wwn[2], 3940 ndlp->nlp_portname.u.wwn[3], 3941 ndlp->nlp_portname.u.wwn[4], 3942 ndlp->nlp_portname.u.wwn[5], 3943 ndlp->nlp_portname.u.wwn[6], 3944 ndlp->nlp_portname.u.wwn[7]); 3945 3946 index = strlen(buf); 3947 3948 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 3949 sprintf(&buf[index], "%010u,", 3950 ndlp->lat_data[i].cmd_count); 3951 index = strlen(buf); 3952 } 3953 sprintf(&buf[index], "\n"); 3954 index = strlen(buf); 3955 } 3956 spin_unlock_irq(shost->host_lock); 3957 return index; 3958 } 3959 3960 static struct bin_attribute sysfs_drvr_stat_data_attr = { 3961 .attr = { 3962 .name = "lpfc_drvr_stat_data", 3963 .mode = S_IRUSR, 3964 }, 3965 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 3966 .read = sysfs_drvr_stat_data_read, 3967 .write = NULL, 3968 }; 3969 3970 /* 3971 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 3972 # connection. 3973 # Value range is [0,16]. Default value is 0. 3974 */ 3975 /** 3976 * lpfc_link_speed_set - Set the adapters link speed 3977 * @phba: lpfc_hba pointer. 3978 * @val: link speed value. 3979 * 3980 * Description: 3981 * If val is in a valid range then set the adapter's link speed field and 3982 * issue a lip; if the lip fails reset the link speed to the old value. 3983 * 3984 * Notes: 3985 * If the value is not in range log a kernel error message and return an error. 3986 * 3987 * Returns: 3988 * zero if val is in range and lip okay. 3989 * non-zero return value from lpfc_issue_lip() 3990 * -EINVAL val out of range 3991 **/ 3992 static ssize_t 3993 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 3994 const char *buf, size_t count) 3995 { 3996 struct Scsi_Host *shost = class_to_shost(dev); 3997 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3998 struct lpfc_hba *phba = vport->phba; 3999 int val = LPFC_USER_LINK_SPEED_AUTO; 4000 int nolip = 0; 4001 const char *val_buf = buf; 4002 int err; 4003 uint32_t prev_val, if_type; 4004 4005 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4006 if (if_type == LPFC_SLI_INTF_IF_TYPE_2 && 4007 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4008 return -EPERM; 4009 4010 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4011 nolip = 1; 4012 val_buf = &buf[strlen("nolip ")]; 4013 } 4014 4015 if (!isdigit(val_buf[0])) 4016 return -EINVAL; 4017 if (sscanf(val_buf, "%i", &val) != 1) 4018 return -EINVAL; 4019 4020 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4021 "3055 lpfc_link_speed changed from %d to %d %s\n", 4022 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4023 4024 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4025 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4026 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4027 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4028 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4029 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4030 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb))) { 4031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4032 "2879 lpfc_link_speed attribute cannot be set " 4033 "to %d. Speed is not supported by this port.\n", 4034 val); 4035 return -EINVAL; 4036 } 4037 if (val == LPFC_USER_LINK_SPEED_16G && 4038 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4040 "3112 lpfc_link_speed attribute cannot be set " 4041 "to %d. Speed is not supported in loop mode.\n", 4042 val); 4043 return -EINVAL; 4044 } 4045 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) && 4046 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) { 4047 prev_val = phba->cfg_link_speed; 4048 phba->cfg_link_speed = val; 4049 if (nolip) 4050 return strlen(buf); 4051 4052 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4053 if (err) { 4054 phba->cfg_link_speed = prev_val; 4055 return -EINVAL; 4056 } else 4057 return strlen(buf); 4058 } 4059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4060 "0469 lpfc_link_speed attribute cannot be set to %d, " 4061 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val); 4062 return -EINVAL; 4063 } 4064 4065 static int lpfc_link_speed = 0; 4066 module_param(lpfc_link_speed, int, S_IRUGO); 4067 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4068 lpfc_param_show(link_speed) 4069 4070 /** 4071 * lpfc_link_speed_init - Set the adapters link speed 4072 * @phba: lpfc_hba pointer. 4073 * @val: link speed value. 4074 * 4075 * Description: 4076 * If val is in a valid range then set the adapter's link speed field. 4077 * 4078 * Notes: 4079 * If the value is not in range log a kernel error message, clear the link 4080 * speed and return an error. 4081 * 4082 * Returns: 4083 * zero if val saved. 4084 * -EINVAL val out of range 4085 **/ 4086 static int 4087 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4088 { 4089 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4091 "3111 lpfc_link_speed of %d cannot " 4092 "support loop mode, setting topology to default.\n", 4093 val); 4094 phba->cfg_topology = 0; 4095 } 4096 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) && 4097 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) { 4098 phba->cfg_link_speed = val; 4099 return 0; 4100 } 4101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4102 "0405 lpfc_link_speed attribute cannot " 4103 "be set to %d, allowed values are " 4104 "["LPFC_LINK_SPEED_STRING"]\n", val); 4105 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4106 return -EINVAL; 4107 } 4108 4109 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR, 4110 lpfc_link_speed_show, lpfc_link_speed_store); 4111 4112 /* 4113 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4114 # 0 = aer disabled or not supported 4115 # 1 = aer supported and enabled (default) 4116 # Value range is [0,1]. Default value is 1. 4117 */ 4118 LPFC_ATTR(aer_support, 1, 0, 1, 4119 "Enable PCIe device AER support"); 4120 lpfc_param_show(aer_support) 4121 4122 /** 4123 * lpfc_aer_support_store - Set the adapter for aer support 4124 * 4125 * @dev: class device that is converted into a Scsi_host. 4126 * @attr: device attribute, not used. 4127 * @buf: containing enable or disable aer flag. 4128 * @count: unused variable. 4129 * 4130 * Description: 4131 * If the val is 1 and currently the device's AER capability was not 4132 * enabled, invoke the kernel's enable AER helper routine, trying to 4133 * enable the device's AER capability. If the helper routine enabling 4134 * AER returns success, update the device's cfg_aer_support flag to 4135 * indicate AER is supported by the device; otherwise, if the device 4136 * AER capability is already enabled to support AER, then do nothing. 4137 * 4138 * If the val is 0 and currently the device's AER support was enabled, 4139 * invoke the kernel's disable AER helper routine. After that, update 4140 * the device's cfg_aer_support flag to indicate AER is not supported 4141 * by the device; otherwise, if the device AER capability is already 4142 * disabled from supporting AER, then do nothing. 4143 * 4144 * Returns: 4145 * length of the buf on success if val is in range the intended mode 4146 * is supported. 4147 * -EINVAL if val out of range or intended mode is not supported. 4148 **/ 4149 static ssize_t 4150 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4151 const char *buf, size_t count) 4152 { 4153 struct Scsi_Host *shost = class_to_shost(dev); 4154 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4155 struct lpfc_hba *phba = vport->phba; 4156 int val = 0, rc = -EINVAL; 4157 4158 if (!isdigit(buf[0])) 4159 return -EINVAL; 4160 if (sscanf(buf, "%i", &val) != 1) 4161 return -EINVAL; 4162 4163 switch (val) { 4164 case 0: 4165 if (phba->hba_flag & HBA_AER_ENABLED) { 4166 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4167 if (!rc) { 4168 spin_lock_irq(&phba->hbalock); 4169 phba->hba_flag &= ~HBA_AER_ENABLED; 4170 spin_unlock_irq(&phba->hbalock); 4171 phba->cfg_aer_support = 0; 4172 rc = strlen(buf); 4173 } else 4174 rc = -EPERM; 4175 } else { 4176 phba->cfg_aer_support = 0; 4177 rc = strlen(buf); 4178 } 4179 break; 4180 case 1: 4181 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4182 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4183 if (!rc) { 4184 spin_lock_irq(&phba->hbalock); 4185 phba->hba_flag |= HBA_AER_ENABLED; 4186 spin_unlock_irq(&phba->hbalock); 4187 phba->cfg_aer_support = 1; 4188 rc = strlen(buf); 4189 } else 4190 rc = -EPERM; 4191 } else { 4192 phba->cfg_aer_support = 1; 4193 rc = strlen(buf); 4194 } 4195 break; 4196 default: 4197 rc = -EINVAL; 4198 break; 4199 } 4200 return rc; 4201 } 4202 4203 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR, 4204 lpfc_aer_support_show, lpfc_aer_support_store); 4205 4206 /** 4207 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4208 * @dev: class device that is converted into a Scsi_host. 4209 * @attr: device attribute, not used. 4210 * @buf: containing flag 1 for aer cleanup state. 4211 * @count: unused variable. 4212 * 4213 * Description: 4214 * If the @buf contains 1 and the device currently has the AER support 4215 * enabled, then invokes the kernel AER helper routine 4216 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable 4217 * error status register. 4218 * 4219 * Notes: 4220 * 4221 * Returns: 4222 * -EINVAL if the buf does not contain the 1 or the device is not currently 4223 * enabled with the AER support. 4224 **/ 4225 static ssize_t 4226 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4227 const char *buf, size_t count) 4228 { 4229 struct Scsi_Host *shost = class_to_shost(dev); 4230 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4231 struct lpfc_hba *phba = vport->phba; 4232 int val, rc = -1; 4233 4234 if (!isdigit(buf[0])) 4235 return -EINVAL; 4236 if (sscanf(buf, "%i", &val) != 1) 4237 return -EINVAL; 4238 if (val != 1) 4239 return -EINVAL; 4240 4241 if (phba->hba_flag & HBA_AER_ENABLED) 4242 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); 4243 4244 if (rc == 0) 4245 return strlen(buf); 4246 else 4247 return -EPERM; 4248 } 4249 4250 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4251 lpfc_aer_cleanup_state); 4252 4253 /** 4254 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4255 * 4256 * @dev: class device that is converted into a Scsi_host. 4257 * @attr: device attribute, not used. 4258 * @buf: containing the string the number of vfs to be enabled. 4259 * @count: unused variable. 4260 * 4261 * Description: 4262 * When this api is called either through user sysfs, the driver shall 4263 * try to enable or disable SR-IOV virtual functions according to the 4264 * following: 4265 * 4266 * If zero virtual function has been enabled to the physical function, 4267 * the driver shall invoke the pci enable virtual function api trying 4268 * to enable the virtual functions. If the nr_vfn provided is greater 4269 * than the maximum supported, the maximum virtual function number will 4270 * be used for invoking the api; otherwise, the nr_vfn provided shall 4271 * be used for invoking the api. If the api call returned success, the 4272 * actual number of virtual functions enabled will be set to the driver 4273 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4274 * cfg_sriov_nr_virtfn remains zero. 4275 * 4276 * If none-zero virtual functions have already been enabled to the 4277 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4278 * -EINVAL will be returned and the driver does nothing; 4279 * 4280 * If the nr_vfn provided is zero and none-zero virtual functions have 4281 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4282 * disabling virtual function api shall be invoded to disable all the 4283 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4284 * zero. Otherwise, if zero virtual function has been enabled, do 4285 * nothing. 4286 * 4287 * Returns: 4288 * length of the buf on success if val is in range the intended mode 4289 * is supported. 4290 * -EINVAL if val out of range or intended mode is not supported. 4291 **/ 4292 static ssize_t 4293 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4294 const char *buf, size_t count) 4295 { 4296 struct Scsi_Host *shost = class_to_shost(dev); 4297 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4298 struct lpfc_hba *phba = vport->phba; 4299 struct pci_dev *pdev = phba->pcidev; 4300 int val = 0, rc = -EINVAL; 4301 4302 /* Sanity check on user data */ 4303 if (!isdigit(buf[0])) 4304 return -EINVAL; 4305 if (sscanf(buf, "%i", &val) != 1) 4306 return -EINVAL; 4307 if (val < 0) 4308 return -EINVAL; 4309 4310 /* Request disabling virtual functions */ 4311 if (val == 0) { 4312 if (phba->cfg_sriov_nr_virtfn > 0) { 4313 pci_disable_sriov(pdev); 4314 phba->cfg_sriov_nr_virtfn = 0; 4315 } 4316 return strlen(buf); 4317 } 4318 4319 /* Request enabling virtual functions */ 4320 if (phba->cfg_sriov_nr_virtfn > 0) { 4321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4322 "3018 There are %d virtual functions " 4323 "enabled on physical function.\n", 4324 phba->cfg_sriov_nr_virtfn); 4325 return -EEXIST; 4326 } 4327 4328 if (val <= LPFC_MAX_VFN_PER_PFN) 4329 phba->cfg_sriov_nr_virtfn = val; 4330 else { 4331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4332 "3019 Enabling %d virtual functions is not " 4333 "allowed.\n", val); 4334 return -EINVAL; 4335 } 4336 4337 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4338 if (rc) { 4339 phba->cfg_sriov_nr_virtfn = 0; 4340 rc = -EPERM; 4341 } else 4342 rc = strlen(buf); 4343 4344 return rc; 4345 } 4346 4347 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4348 "Enable PCIe device SR-IOV virtual fn"); 4349 4350 lpfc_param_show(sriov_nr_virtfn) 4351 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR, 4352 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store); 4353 4354 /** 4355 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4356 * 4357 * @dev: class device that is converted into a Scsi_host. 4358 * @attr: device attribute, not used. 4359 * @buf: containing the string the number of vfs to be enabled. 4360 * @count: unused variable. 4361 * 4362 * Description: 4363 * 4364 * Returns: 4365 * length of the buf on success if val is in range the intended mode 4366 * is supported. 4367 * -EINVAL if val out of range or intended mode is not supported. 4368 **/ 4369 static ssize_t 4370 lpfc_request_firmware_upgrade_store(struct device *dev, 4371 struct device_attribute *attr, 4372 const char *buf, size_t count) 4373 { 4374 struct Scsi_Host *shost = class_to_shost(dev); 4375 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4376 struct lpfc_hba *phba = vport->phba; 4377 int val = 0, rc = -EINVAL; 4378 4379 /* Sanity check on user data */ 4380 if (!isdigit(buf[0])) 4381 return -EINVAL; 4382 if (sscanf(buf, "%i", &val) != 1) 4383 return -EINVAL; 4384 if (val != 1) 4385 return -EINVAL; 4386 4387 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4388 if (rc) 4389 rc = -EPERM; 4390 else 4391 rc = strlen(buf); 4392 return rc; 4393 } 4394 4395 static int lpfc_req_fw_upgrade; 4396 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4397 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4398 lpfc_param_show(request_firmware_upgrade) 4399 4400 /** 4401 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4402 * @phba: lpfc_hba pointer. 4403 * @val: 0 or 1. 4404 * 4405 * Description: 4406 * Set the initial Linux generic firmware upgrade enable or disable flag. 4407 * 4408 * Returns: 4409 * zero if val saved. 4410 * -EINVAL val out of range 4411 **/ 4412 static int 4413 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4414 { 4415 if (val >= 0 && val <= 1) { 4416 phba->cfg_request_firmware_upgrade = val; 4417 return 0; 4418 } 4419 return -EINVAL; 4420 } 4421 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4422 lpfc_request_firmware_upgrade_show, 4423 lpfc_request_firmware_upgrade_store); 4424 4425 /** 4426 * lpfc_fcp_imax_store 4427 * 4428 * @dev: class device that is converted into a Scsi_host. 4429 * @attr: device attribute, not used. 4430 * @buf: string with the number of fast-path FCP interrupts per second. 4431 * @count: unused variable. 4432 * 4433 * Description: 4434 * If val is in a valid range [636,651042], then set the adapter's 4435 * maximum number of fast-path FCP interrupts per second. 4436 * 4437 * Returns: 4438 * length of the buf on success if val is in range the intended mode 4439 * is supported. 4440 * -EINVAL if val out of range or intended mode is not supported. 4441 **/ 4442 static ssize_t 4443 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4444 const char *buf, size_t count) 4445 { 4446 struct Scsi_Host *shost = class_to_shost(dev); 4447 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4448 struct lpfc_hba *phba = vport->phba; 4449 int val = 0, i; 4450 4451 /* fcp_imax is only valid for SLI4 */ 4452 if (phba->sli_rev != LPFC_SLI_REV4) 4453 return -EINVAL; 4454 4455 /* Sanity check on user data */ 4456 if (!isdigit(buf[0])) 4457 return -EINVAL; 4458 if (sscanf(buf, "%i", &val) != 1) 4459 return -EINVAL; 4460 4461 /* 4462 * Value range for the HBA is [5000,5000000] 4463 * The value for each EQ depends on how many EQs are configured. 4464 * Allow value == 0 4465 */ 4466 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4467 return -EINVAL; 4468 4469 phba->cfg_fcp_imax = (uint32_t)val; 4470 4471 for (i = 0; i < phba->io_channel_irqs; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4472 lpfc_modify_hba_eq_delay(phba, i); 4473 4474 return strlen(buf); 4475 } 4476 4477 /* 4478 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4479 # for the HBA. 4480 # 4481 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 4482 */ 4483 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4484 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4485 MODULE_PARM_DESC(lpfc_fcp_imax, 4486 "Set the maximum number of FCP interrupts per second per HBA"); 4487 lpfc_param_show(fcp_imax) 4488 4489 /** 4490 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4491 * @phba: lpfc_hba pointer. 4492 * @val: link speed value. 4493 * 4494 * Description: 4495 * If val is in a valid range [636,651042], then initialize the adapter's 4496 * maximum number of fast-path FCP interrupts per second. 4497 * 4498 * Returns: 4499 * zero if val saved. 4500 * -EINVAL val out of range 4501 **/ 4502 static int 4503 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4504 { 4505 if (phba->sli_rev != LPFC_SLI_REV4) { 4506 phba->cfg_fcp_imax = 0; 4507 return 0; 4508 } 4509 4510 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4511 (val == 0)) { 4512 phba->cfg_fcp_imax = val; 4513 return 0; 4514 } 4515 4516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4517 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4518 val); 4519 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4520 4521 return 0; 4522 } 4523 4524 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR, 4525 lpfc_fcp_imax_show, lpfc_fcp_imax_store); 4526 4527 /** 4528 * lpfc_state_show - Display current driver CPU affinity 4529 * @dev: class converted to a Scsi_host structure. 4530 * @attr: device attribute, not used. 4531 * @buf: on return contains text describing the state of the link. 4532 * 4533 * Returns: size of formatted string. 4534 **/ 4535 static ssize_t 4536 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 4537 char *buf) 4538 { 4539 struct Scsi_Host *shost = class_to_shost(dev); 4540 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4541 struct lpfc_hba *phba = vport->phba; 4542 struct lpfc_vector_map_info *cpup; 4543 int len = 0; 4544 4545 if ((phba->sli_rev != LPFC_SLI_REV4) || 4546 (phba->intr_type != MSIX)) 4547 return len; 4548 4549 switch (phba->cfg_fcp_cpu_map) { 4550 case 0: 4551 len += snprintf(buf + len, PAGE_SIZE-len, 4552 "fcp_cpu_map: No mapping (%d)\n", 4553 phba->cfg_fcp_cpu_map); 4554 return len; 4555 case 1: 4556 len += snprintf(buf + len, PAGE_SIZE-len, 4557 "fcp_cpu_map: HBA centric mapping (%d): " 4558 "%d online CPUs\n", 4559 phba->cfg_fcp_cpu_map, 4560 phba->sli4_hba.num_online_cpu); 4561 break; 4562 case 2: 4563 len += snprintf(buf + len, PAGE_SIZE-len, 4564 "fcp_cpu_map: Driver centric mapping (%d): " 4565 "%d online CPUs\n", 4566 phba->cfg_fcp_cpu_map, 4567 phba->sli4_hba.num_online_cpu); 4568 break; 4569 } 4570 4571 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) { 4572 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 4573 4574 /* margin should fit in this and the truncated message */ 4575 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) 4576 len += snprintf(buf + len, PAGE_SIZE-len, 4577 "CPU %02d io_chan %02d " 4578 "physid %d coreid %d\n", 4579 phba->sli4_hba.curr_disp_cpu, 4580 cpup->channel_id, cpup->phys_id, 4581 cpup->core_id); 4582 else 4583 len += snprintf(buf + len, PAGE_SIZE-len, 4584 "CPU %02d io_chan %02d " 4585 "physid %d coreid %d IRQ %d\n", 4586 phba->sli4_hba.curr_disp_cpu, 4587 cpup->channel_id, cpup->phys_id, 4588 cpup->core_id, cpup->irq); 4589 4590 phba->sli4_hba.curr_disp_cpu++; 4591 4592 /* display max number of CPUs keeping some margin */ 4593 if (phba->sli4_hba.curr_disp_cpu < 4594 phba->sli4_hba.num_present_cpu && 4595 (len >= (PAGE_SIZE - 64))) { 4596 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n"); 4597 break; 4598 } 4599 } 4600 4601 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu) 4602 phba->sli4_hba.curr_disp_cpu = 0; 4603 4604 return len; 4605 } 4606 4607 /** 4608 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 4609 * @dev: class device that is converted into a Scsi_host. 4610 * @attr: device attribute, not used. 4611 * @buf: one or more lpfc_polling_flags values. 4612 * @count: not used. 4613 * 4614 * Returns: 4615 * -EINVAL - Not implemented yet. 4616 **/ 4617 static ssize_t 4618 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 4619 const char *buf, size_t count) 4620 { 4621 int status = -EINVAL; 4622 return status; 4623 } 4624 4625 /* 4626 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 4627 # for the HBA. 4628 # 4629 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2). 4630 # 0 - Do not affinitze IRQ vectors 4631 # 1 - Affintize HBA vectors with respect to each HBA 4632 # (start with CPU0 for each HBA) 4633 # 2 - Affintize HBA vectors with respect to the entire driver 4634 # (round robin thru all CPUs across all HBAs) 4635 */ 4636 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 4637 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 4638 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 4639 "Defines how to map CPUs to IRQ vectors per HBA"); 4640 4641 /** 4642 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 4643 * @phba: lpfc_hba pointer. 4644 * @val: link speed value. 4645 * 4646 * Description: 4647 * If val is in a valid range [0-2], then affinitze the adapter's 4648 * MSIX vectors. 4649 * 4650 * Returns: 4651 * zero if val saved. 4652 * -EINVAL val out of range 4653 **/ 4654 static int 4655 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 4656 { 4657 if (phba->sli_rev != LPFC_SLI_REV4) { 4658 phba->cfg_fcp_cpu_map = 0; 4659 return 0; 4660 } 4661 4662 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 4663 phba->cfg_fcp_cpu_map = val; 4664 return 0; 4665 } 4666 4667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4668 "3326 lpfc_fcp_cpu_map: %d out of range, using " 4669 "default\n", val); 4670 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 4671 4672 return 0; 4673 } 4674 4675 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR, 4676 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store); 4677 4678 /* 4679 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 4680 # Value range is [2,3]. Default value is 3. 4681 */ 4682 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 4683 "Select Fibre Channel class of service for FCP sequences"); 4684 4685 /* 4686 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 4687 # is [0,1]. Default value is 0. 4688 */ 4689 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 4690 "Use ADISC on rediscovery to authenticate FCP devices"); 4691 4692 /* 4693 # lpfc_first_burst_size: First burst size to use on the NPorts 4694 # that support first burst. 4695 # Value range is [0,65536]. Default value is 0. 4696 */ 4697 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 4698 "First burst size for Targets that support first burst"); 4699 4700 /* 4701 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 4702 * When the driver is configured as an NVME target, this value is 4703 * communicated to the NVME initiator in the PRLI response. It is 4704 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 4705 * parameters are set and the target is sending the PRLI RSP. 4706 * Parameter supported on physical port only - no NPIV support. 4707 * Value range is [0,65536]. Default value is 0. 4708 */ 4709 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 4710 "NVME Target mode first burst size in 512B increments."); 4711 4712 /* 4713 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 4714 * For the Initiator (I), enabling this parameter means that an NVMET 4715 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 4716 * processed by the initiator for subsequent NVME FCP IO. For the target 4717 * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size 4718 * driver parameter as the target function's first burst size returned to the 4719 * initiator in the target's NVME PRLI response. Parameter supported on physical 4720 * port only - no NPIV support. 4721 * Value range is [0,1]. Default value is 0 (disabled). 4722 */ 4723 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 4724 "Enable First Burst feature on I and T functions."); 4725 4726 /* 4727 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 4728 # depth. Default value is 0. When the value of this parameter is zero the 4729 # SCSI command completion time is not used for controlling I/O queue depth. When 4730 # the parameter is set to a non-zero value, the I/O queue depth is controlled 4731 # to limit the I/O completion time to the parameter value. 4732 # The value is set in milliseconds. 4733 */ 4734 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 4735 "Use command completion time to control queue depth"); 4736 4737 lpfc_vport_param_show(max_scsicmpl_time); 4738 static int 4739 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 4740 { 4741 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4742 struct lpfc_nodelist *ndlp, *next_ndlp; 4743 4744 if (val == vport->cfg_max_scsicmpl_time) 4745 return 0; 4746 if ((val < 0) || (val > 60000)) 4747 return -EINVAL; 4748 vport->cfg_max_scsicmpl_time = val; 4749 4750 spin_lock_irq(shost->host_lock); 4751 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 4752 if (!NLP_CHK_NODE_ACT(ndlp)) 4753 continue; 4754 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4755 continue; 4756 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4757 } 4758 spin_unlock_irq(shost->host_lock); 4759 return 0; 4760 } 4761 lpfc_vport_param_store(max_scsicmpl_time); 4762 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR, 4763 lpfc_max_scsicmpl_time_show, 4764 lpfc_max_scsicmpl_time_store); 4765 4766 /* 4767 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 4768 # range is [0,1]. Default value is 0. 4769 */ 4770 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 4771 4772 /* 4773 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 4774 * range is [0,1]. Default value is 0. 4775 * For [0], FCP commands are issued to Work Queues ina round robin fashion. 4776 * For [1], FCP commands are issued to a Work Queue associated with the 4777 * current CPU. 4778 * 4779 * LPFC_FCP_SCHED_ROUND_ROBIN == 0 4780 * LPFC_FCP_SCHED_BY_CPU == 1 4781 * 4782 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 4783 * affinity for FCP/NVME I/Os through Work Queues associated with the current 4784 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 4785 * through WQs will be used. 4786 */ 4787 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_ROUND_ROBIN, 4788 LPFC_FCP_SCHED_ROUND_ROBIN, 4789 LPFC_FCP_SCHED_BY_CPU, 4790 "Determine scheduling algorithm for " 4791 "issuing commands [0] - Round Robin, [1] - Current CPU"); 4792 4793 /* 4794 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 4795 # range is [0,1]. Default value is 0. 4796 # For [0], bus reset issues target reset to ALL devices 4797 # For [1], bus reset issues target reset to non-FCP2 devices 4798 */ 4799 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 4800 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 4801 4802 4803 /* 4804 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 4805 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 4806 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 4807 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 4808 # cr_delay is set to 0. 4809 */ 4810 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 4811 "interrupt response is generated"); 4812 4813 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 4814 "interrupt response is generated"); 4815 4816 /* 4817 # lpfc_multi_ring_support: Determines how many rings to spread available 4818 # cmd/rsp IOCB entries across. 4819 # Value range is [1,2]. Default value is 1. 4820 */ 4821 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 4822 "SLI rings to spread IOCB entries across"); 4823 4824 /* 4825 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 4826 # identifies what rctl value to configure the additional ring for. 4827 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 4828 */ 4829 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 4830 255, "Identifies RCTL for additional ring configuration"); 4831 4832 /* 4833 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 4834 # identifies what type value to configure the additional ring for. 4835 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 4836 */ 4837 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 4838 255, "Identifies TYPE for additional ring configuration"); 4839 4840 /* 4841 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 4842 # 0 = SmartSAN functionality disabled (default) 4843 # 1 = SmartSAN functionality enabled 4844 # This parameter will override the value of lpfc_fdmi_on module parameter. 4845 # Value range is [0,1]. Default value is 0. 4846 */ 4847 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 4848 4849 /* 4850 # lpfc_fdmi_on: Controls FDMI support. 4851 # 0 No FDMI support (default) 4852 # 1 Traditional FDMI support 4853 # Traditional FDMI support means the driver will assume FDMI-2 support; 4854 # however, if that fails, it will fallback to FDMI-1. 4855 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 4856 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 4857 # lpfc_fdmi_on. 4858 # Value range [0,1]. Default value is 0. 4859 */ 4860 LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support"); 4861 4862 /* 4863 # Specifies the maximum number of ELS cmds we can have outstanding (for 4864 # discovery). Value range is [1,64]. Default value = 32. 4865 */ 4866 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 4867 "during discovery"); 4868 4869 /* 4870 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 4871 # will be scanned by the SCSI midlayer when sequential scanning is 4872 # used; and is also the highest LUN ID allowed when the SCSI midlayer 4873 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 4874 # LUN ID limit, but the SCSI midlayer requires this field for the uses 4875 # above. The lpfc driver limits the default value to 255 for two reasons. 4876 # As it bounds the sequential scan loop, scanning for thousands of luns 4877 # on a target can take minutes of wall clock time. Additionally, 4878 # there are FC targets, such as JBODs, that only recognize 8-bits of 4879 # LUN ID. When they receive a value greater than 8 bits, they chop off 4880 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 4881 # and so on all as LUN ID 0. This causes the linux kernel, which sees 4882 # valid responses at each of the LUN IDs, to believe there are multiple 4883 # devices present, when in fact, there is only 1. 4884 # A customer that is aware of their target behaviors, and the results as 4885 # indicated above, is welcome to increase the lpfc_max_luns value. 4886 # As mentioned, this value is not used by the lpfc driver, only the 4887 # SCSI midlayer. 4888 # Value range is [0,65535]. Default value is 255. 4889 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 4890 */ 4891 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 4892 4893 /* 4894 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 4895 # Value range is [1,255], default value is 10. 4896 */ 4897 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 4898 "Milliseconds driver will wait between polling FCP ring"); 4899 4900 /* 4901 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 4902 # to complete in seconds. Value range is [5,180], default value is 60. 4903 */ 4904 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 4905 "Maximum time to wait for task management commands to complete"); 4906 /* 4907 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 4908 # support this feature 4909 # 0 = MSI disabled 4910 # 1 = MSI enabled 4911 # 2 = MSI-X enabled (default) 4912 # Value range is [0,2]. Default value is 2. 4913 */ 4914 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 4915 "MSI-X (2), if possible"); 4916 4917 /* 4918 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 4919 * 4920 * 0 = NVME OAS disabled 4921 * 1 = NVME OAS enabled 4922 * 4923 * Value range is [0,1]. Default value is 0. 4924 */ 4925 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 4926 "Use OAS bit on NVME IOs"); 4927 4928 /* 4929 * lpfc_fcp_io_channel: Set the number of FCP IO channels the driver 4930 * will advertise it supports to the SCSI layer. This also will map to 4931 * the number of WQs the driver will create. 4932 * 4933 * 0 = Configure the number of io channels to the number of active CPUs. 4934 * 1,32 = Manually specify how many io channels to use. 4935 * 4936 * Value range is [0,32]. Default value is 4. 4937 */ 4938 LPFC_ATTR_R(fcp_io_channel, 4939 LPFC_FCP_IO_CHAN_DEF, 4940 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 4941 "Set the number of FCP I/O channels"); 4942 4943 /* 4944 * lpfc_nvme_io_channel: Set the number of IO hardware queues the driver 4945 * will advertise it supports to the NVME layer. This also will map to 4946 * the number of WQs the driver will create. 4947 * 4948 * This module parameter is valid when lpfc_enable_fc4_type is set 4949 * to support NVME. 4950 * 4951 * The NVME Layer will try to create this many, plus 1 administrative 4952 * hardware queue. The administrative queue will always map to WQ 0 4953 * A hardware IO queue maps (qidx) to a specific driver WQ. 4954 * 4955 * 0 = Configure the number of io channels to the number of active CPUs. 4956 * 1,32 = Manually specify how many io channels to use. 4957 * 4958 * Value range is [0,32]. Default value is 0. 4959 */ 4960 LPFC_ATTR_R(nvme_io_channel, 4961 LPFC_NVME_IO_CHAN_DEF, 4962 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 4963 "Set the number of NVME I/O channels"); 4964 4965 /* 4966 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 4967 # 0 = HBA resets disabled 4968 # 1 = HBA resets enabled (default) 4969 # Value range is [0,1]. Default value is 1. 4970 */ 4971 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver."); 4972 4973 /* 4974 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 4975 # 0 = HBA Heartbeat disabled 4976 # 1 = HBA Heartbeat enabled (default) 4977 # Value range is [0,1]. Default value is 1. 4978 */ 4979 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 4980 4981 /* 4982 # lpfc_EnableXLane: Enable Express Lane Feature 4983 # 0x0 Express Lane Feature disabled 4984 # 0x1 Express Lane Feature enabled 4985 # Value range is [0,1]. Default value is 0. 4986 */ 4987 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 4988 4989 /* 4990 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 4991 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 4992 # Value range is [0x0,0x7f]. Default value is 0 4993 */ 4994 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 4995 4996 /* 4997 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 4998 # 0 = BlockGuard disabled (default) 4999 # 1 = BlockGuard enabled 5000 # Value range is [0,1]. Default value is 0. 5001 */ 5002 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5003 5004 /* 5005 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine 5006 # 0 = disabled (default) 5007 # 1 = enabled 5008 # Value range is [0,1]. Default value is 0. 5009 # 5010 # This feature in under investigation and may be supported in the future. 5011 */ 5012 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF; 5013 5014 /* 5015 # lpfc_prot_mask: i 5016 # - Bit mask of host protection capabilities used to register with the 5017 # SCSI mid-layer 5018 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5019 # - Allows you to ultimately specify which profiles to use 5020 # - Default will result in registering capabilities for all profiles. 5021 # - SHOST_DIF_TYPE1_PROTECTION 1 5022 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5023 # - SHOST_DIX_TYPE0_PROTECTION 8 5024 # HBA supports DIX Type 0: Host to HBA protection only 5025 # - SHOST_DIX_TYPE1_PROTECTION 16 5026 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5027 # 5028 */ 5029 LPFC_ATTR(prot_mask, 5030 (SHOST_DIF_TYPE1_PROTECTION | 5031 SHOST_DIX_TYPE0_PROTECTION | 5032 SHOST_DIX_TYPE1_PROTECTION), 5033 0, 5034 (SHOST_DIF_TYPE1_PROTECTION | 5035 SHOST_DIX_TYPE0_PROTECTION | 5036 SHOST_DIX_TYPE1_PROTECTION), 5037 "T10-DIF host protection capabilities mask"); 5038 5039 /* 5040 # lpfc_prot_guard: i 5041 # - Bit mask of protection guard types to register with the SCSI mid-layer 5042 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5043 # - Allows you to ultimately specify which profiles to use 5044 # - Default will result in registering capabilities for all guard types 5045 # 5046 */ 5047 LPFC_ATTR(prot_guard, 5048 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5049 "T10-DIF host protection guard type"); 5050 5051 /* 5052 * Delay initial NPort discovery when Clean Address bit is cleared in 5053 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5054 * This parameter can have value 0 or 1. 5055 * When this parameter is set to 0, no delay is added to the initial 5056 * discovery. 5057 * When this parameter is set to non-zero value, initial Nport discovery is 5058 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5059 * accept and FCID/Fabric name/Fabric portname is changed. 5060 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5061 * when Clean Address bit is cleared in FLOGI/FDISC 5062 * accept and FCID/Fabric name/Fabric portname is changed. 5063 * Default value is 0. 5064 */ 5065 LPFC_ATTR(delay_discovery, 0, 0, 1, 5066 "Delay NPort discovery when Clean Address bit is cleared."); 5067 5068 /* 5069 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5070 * This value can be set to values between 64 and 4096. The default value is 5071 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer 5072 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5073 * Because of the additional overhead involved in setting up T10-DIF, 5074 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5075 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5076 */ 5077 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT, 5078 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count"); 5079 5080 /* 5081 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5082 * 0 = MDS Diagnostics disabled (default) 5083 * 1 = MDS Diagnostics enabled 5084 * Value range is [0,1]. Default value is 0. 5085 */ 5086 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5087 5088 struct device_attribute *lpfc_hba_attrs[] = { 5089 &dev_attr_nvme_info, 5090 &dev_attr_bg_info, 5091 &dev_attr_bg_guard_err, 5092 &dev_attr_bg_apptag_err, 5093 &dev_attr_bg_reftag_err, 5094 &dev_attr_info, 5095 &dev_attr_serialnum, 5096 &dev_attr_modeldesc, 5097 &dev_attr_modelname, 5098 &dev_attr_programtype, 5099 &dev_attr_portnum, 5100 &dev_attr_fwrev, 5101 &dev_attr_hdw, 5102 &dev_attr_option_rom_version, 5103 &dev_attr_link_state, 5104 &dev_attr_num_discovered_ports, 5105 &dev_attr_menlo_mgmt_mode, 5106 &dev_attr_lpfc_drvr_version, 5107 &dev_attr_lpfc_enable_fip, 5108 &dev_attr_lpfc_temp_sensor, 5109 &dev_attr_lpfc_log_verbose, 5110 &dev_attr_lpfc_lun_queue_depth, 5111 &dev_attr_lpfc_tgt_queue_depth, 5112 &dev_attr_lpfc_hba_queue_depth, 5113 &dev_attr_lpfc_peer_port_login, 5114 &dev_attr_lpfc_nodev_tmo, 5115 &dev_attr_lpfc_devloss_tmo, 5116 &dev_attr_lpfc_enable_fc4_type, 5117 &dev_attr_lpfc_xri_split, 5118 &dev_attr_lpfc_fcp_class, 5119 &dev_attr_lpfc_use_adisc, 5120 &dev_attr_lpfc_first_burst_size, 5121 &dev_attr_lpfc_ack0, 5122 &dev_attr_lpfc_topology, 5123 &dev_attr_lpfc_scan_down, 5124 &dev_attr_lpfc_link_speed, 5125 &dev_attr_lpfc_fcp_io_sched, 5126 &dev_attr_lpfc_fcp2_no_tgt_reset, 5127 &dev_attr_lpfc_cr_delay, 5128 &dev_attr_lpfc_cr_count, 5129 &dev_attr_lpfc_multi_ring_support, 5130 &dev_attr_lpfc_multi_ring_rctl, 5131 &dev_attr_lpfc_multi_ring_type, 5132 &dev_attr_lpfc_fdmi_on, 5133 &dev_attr_lpfc_enable_SmartSAN, 5134 &dev_attr_lpfc_max_luns, 5135 &dev_attr_lpfc_enable_npiv, 5136 &dev_attr_lpfc_fcf_failover_policy, 5137 &dev_attr_lpfc_enable_rrq, 5138 &dev_attr_nport_evt_cnt, 5139 &dev_attr_board_mode, 5140 &dev_attr_max_vpi, 5141 &dev_attr_used_vpi, 5142 &dev_attr_max_rpi, 5143 &dev_attr_used_rpi, 5144 &dev_attr_max_xri, 5145 &dev_attr_used_xri, 5146 &dev_attr_npiv_info, 5147 &dev_attr_issue_reset, 5148 &dev_attr_lpfc_poll, 5149 &dev_attr_lpfc_poll_tmo, 5150 &dev_attr_lpfc_task_mgmt_tmo, 5151 &dev_attr_lpfc_use_msi, 5152 &dev_attr_lpfc_nvme_oas, 5153 &dev_attr_lpfc_fcp_imax, 5154 &dev_attr_lpfc_fcp_cpu_map, 5155 &dev_attr_lpfc_fcp_io_channel, 5156 &dev_attr_lpfc_suppress_rsp, 5157 &dev_attr_lpfc_nvme_io_channel, 5158 &dev_attr_lpfc_nvmet_mrq, 5159 &dev_attr_lpfc_nvme_enable_fb, 5160 &dev_attr_lpfc_nvmet_fb_size, 5161 &dev_attr_lpfc_enable_bg, 5162 &dev_attr_lpfc_soft_wwnn, 5163 &dev_attr_lpfc_soft_wwpn, 5164 &dev_attr_lpfc_soft_wwn_enable, 5165 &dev_attr_lpfc_enable_hba_reset, 5166 &dev_attr_lpfc_enable_hba_heartbeat, 5167 &dev_attr_lpfc_EnableXLane, 5168 &dev_attr_lpfc_XLanePriority, 5169 &dev_attr_lpfc_xlane_lun, 5170 &dev_attr_lpfc_xlane_tgt, 5171 &dev_attr_lpfc_xlane_vpt, 5172 &dev_attr_lpfc_xlane_lun_state, 5173 &dev_attr_lpfc_xlane_lun_status, 5174 &dev_attr_lpfc_xlane_priority, 5175 &dev_attr_lpfc_sg_seg_cnt, 5176 &dev_attr_lpfc_max_scsicmpl_time, 5177 &dev_attr_lpfc_stat_data_ctrl, 5178 &dev_attr_lpfc_aer_support, 5179 &dev_attr_lpfc_aer_state_cleanup, 5180 &dev_attr_lpfc_sriov_nr_virtfn, 5181 &dev_attr_lpfc_req_fw_upgrade, 5182 &dev_attr_lpfc_suppress_link_up, 5183 &dev_attr_lpfc_iocb_cnt, 5184 &dev_attr_iocb_hw, 5185 &dev_attr_txq_hw, 5186 &dev_attr_txcmplq_hw, 5187 &dev_attr_lpfc_fips_level, 5188 &dev_attr_lpfc_fips_rev, 5189 &dev_attr_lpfc_dss, 5190 &dev_attr_lpfc_sriov_hw_max_virtfn, 5191 &dev_attr_protocol, 5192 &dev_attr_lpfc_xlane_supported, 5193 &dev_attr_lpfc_enable_mds_diags, 5194 NULL, 5195 }; 5196 5197 struct device_attribute *lpfc_vport_attrs[] = { 5198 &dev_attr_info, 5199 &dev_attr_link_state, 5200 &dev_attr_num_discovered_ports, 5201 &dev_attr_lpfc_drvr_version, 5202 &dev_attr_lpfc_log_verbose, 5203 &dev_attr_lpfc_lun_queue_depth, 5204 &dev_attr_lpfc_tgt_queue_depth, 5205 &dev_attr_lpfc_nodev_tmo, 5206 &dev_attr_lpfc_devloss_tmo, 5207 &dev_attr_lpfc_hba_queue_depth, 5208 &dev_attr_lpfc_peer_port_login, 5209 &dev_attr_lpfc_restrict_login, 5210 &dev_attr_lpfc_fcp_class, 5211 &dev_attr_lpfc_use_adisc, 5212 &dev_attr_lpfc_first_burst_size, 5213 &dev_attr_lpfc_max_luns, 5214 &dev_attr_nport_evt_cnt, 5215 &dev_attr_npiv_info, 5216 &dev_attr_lpfc_enable_da_id, 5217 &dev_attr_lpfc_max_scsicmpl_time, 5218 &dev_attr_lpfc_stat_data_ctrl, 5219 &dev_attr_lpfc_static_vport, 5220 &dev_attr_lpfc_fips_level, 5221 &dev_attr_lpfc_fips_rev, 5222 NULL, 5223 }; 5224 5225 /** 5226 * sysfs_ctlreg_write - Write method for writing to ctlreg 5227 * @filp: open sysfs file 5228 * @kobj: kernel kobject that contains the kernel class device. 5229 * @bin_attr: kernel attributes passed to us. 5230 * @buf: contains the data to be written to the adapter IOREG space. 5231 * @off: offset into buffer to beginning of data. 5232 * @count: bytes to transfer. 5233 * 5234 * Description: 5235 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5236 * Uses the adapter io control registers to send buf contents to the adapter. 5237 * 5238 * Returns: 5239 * -ERANGE off and count combo out of range 5240 * -EINVAL off, count or buff address invalid 5241 * -EPERM adapter is offline 5242 * value of count, buf contents written 5243 **/ 5244 static ssize_t 5245 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 5246 struct bin_attribute *bin_attr, 5247 char *buf, loff_t off, size_t count) 5248 { 5249 size_t buf_off; 5250 struct device *dev = container_of(kobj, struct device, kobj); 5251 struct Scsi_Host *shost = class_to_shost(dev); 5252 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5253 struct lpfc_hba *phba = vport->phba; 5254 5255 if (phba->sli_rev >= LPFC_SLI_REV4) 5256 return -EPERM; 5257 5258 if ((off + count) > FF_REG_AREA_SIZE) 5259 return -ERANGE; 5260 5261 if (count <= LPFC_REG_WRITE_KEY_SIZE) 5262 return 0; 5263 5264 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5265 return -EINVAL; 5266 5267 /* This is to protect HBA registers from accidental writes. */ 5268 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 5269 return -EINVAL; 5270 5271 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 5272 return -EPERM; 5273 5274 spin_lock_irq(&phba->hbalock); 5275 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 5276 buf_off += sizeof(uint32_t)) 5277 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 5278 phba->ctrl_regs_memmap_p + off + buf_off); 5279 5280 spin_unlock_irq(&phba->hbalock); 5281 5282 return count; 5283 } 5284 5285 /** 5286 * sysfs_ctlreg_read - Read method for reading from ctlreg 5287 * @filp: open sysfs file 5288 * @kobj: kernel kobject that contains the kernel class device. 5289 * @bin_attr: kernel attributes passed to us. 5290 * @buf: if successful contains the data from the adapter IOREG space. 5291 * @off: offset into buffer to beginning of data. 5292 * @count: bytes to transfer. 5293 * 5294 * Description: 5295 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5296 * Uses the adapter io control registers to read data into buf. 5297 * 5298 * Returns: 5299 * -ERANGE off and count combo out of range 5300 * -EINVAL off, count or buff address invalid 5301 * value of count, buf contents read 5302 **/ 5303 static ssize_t 5304 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 5305 struct bin_attribute *bin_attr, 5306 char *buf, loff_t off, size_t count) 5307 { 5308 size_t buf_off; 5309 uint32_t * tmp_ptr; 5310 struct device *dev = container_of(kobj, struct device, kobj); 5311 struct Scsi_Host *shost = class_to_shost(dev); 5312 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5313 struct lpfc_hba *phba = vport->phba; 5314 5315 if (phba->sli_rev >= LPFC_SLI_REV4) 5316 return -EPERM; 5317 5318 if (off > FF_REG_AREA_SIZE) 5319 return -ERANGE; 5320 5321 if ((off + count) > FF_REG_AREA_SIZE) 5322 count = FF_REG_AREA_SIZE - off; 5323 5324 if (count == 0) return 0; 5325 5326 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5327 return -EINVAL; 5328 5329 spin_lock_irq(&phba->hbalock); 5330 5331 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 5332 tmp_ptr = (uint32_t *)(buf + buf_off); 5333 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 5334 } 5335 5336 spin_unlock_irq(&phba->hbalock); 5337 5338 return count; 5339 } 5340 5341 static struct bin_attribute sysfs_ctlreg_attr = { 5342 .attr = { 5343 .name = "ctlreg", 5344 .mode = S_IRUSR | S_IWUSR, 5345 }, 5346 .size = 256, 5347 .read = sysfs_ctlreg_read, 5348 .write = sysfs_ctlreg_write, 5349 }; 5350 5351 /** 5352 * sysfs_mbox_write - Write method for writing information via mbox 5353 * @filp: open sysfs file 5354 * @kobj: kernel kobject that contains the kernel class device. 5355 * @bin_attr: kernel attributes passed to us. 5356 * @buf: contains the data to be written to sysfs mbox. 5357 * @off: offset into buffer to beginning of data. 5358 * @count: bytes to transfer. 5359 * 5360 * Description: 5361 * Deprecated function. All mailbox access from user space is performed via the 5362 * bsg interface. 5363 * 5364 * Returns: 5365 * -EPERM operation not permitted 5366 **/ 5367 static ssize_t 5368 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 5369 struct bin_attribute *bin_attr, 5370 char *buf, loff_t off, size_t count) 5371 { 5372 return -EPERM; 5373 } 5374 5375 /** 5376 * sysfs_mbox_read - Read method for reading information via mbox 5377 * @filp: open sysfs file 5378 * @kobj: kernel kobject that contains the kernel class device. 5379 * @bin_attr: kernel attributes passed to us. 5380 * @buf: contains the data to be read from sysfs mbox. 5381 * @off: offset into buffer to beginning of data. 5382 * @count: bytes to transfer. 5383 * 5384 * Description: 5385 * Deprecated function. All mailbox access from user space is performed via the 5386 * bsg interface. 5387 * 5388 * Returns: 5389 * -EPERM operation not permitted 5390 **/ 5391 static ssize_t 5392 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 5393 struct bin_attribute *bin_attr, 5394 char *buf, loff_t off, size_t count) 5395 { 5396 return -EPERM; 5397 } 5398 5399 static struct bin_attribute sysfs_mbox_attr = { 5400 .attr = { 5401 .name = "mbox", 5402 .mode = S_IRUSR | S_IWUSR, 5403 }, 5404 .size = MAILBOX_SYSFS_MAX, 5405 .read = sysfs_mbox_read, 5406 .write = sysfs_mbox_write, 5407 }; 5408 5409 /** 5410 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 5411 * @vport: address of lpfc vport structure. 5412 * 5413 * Return codes: 5414 * zero on success 5415 * error return code from sysfs_create_bin_file() 5416 **/ 5417 int 5418 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 5419 { 5420 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5421 int error; 5422 5423 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5424 &sysfs_drvr_stat_data_attr); 5425 5426 /* Virtual ports do not need ctrl_reg and mbox */ 5427 if (error || vport->port_type == LPFC_NPIV_PORT) 5428 goto out; 5429 5430 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5431 &sysfs_ctlreg_attr); 5432 if (error) 5433 goto out_remove_stat_attr; 5434 5435 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5436 &sysfs_mbox_attr); 5437 if (error) 5438 goto out_remove_ctlreg_attr; 5439 5440 return 0; 5441 out_remove_ctlreg_attr: 5442 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 5443 out_remove_stat_attr: 5444 sysfs_remove_bin_file(&shost->shost_dev.kobj, 5445 &sysfs_drvr_stat_data_attr); 5446 out: 5447 return error; 5448 } 5449 5450 /** 5451 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 5452 * @vport: address of lpfc vport structure. 5453 **/ 5454 void 5455 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 5456 { 5457 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5458 sysfs_remove_bin_file(&shost->shost_dev.kobj, 5459 &sysfs_drvr_stat_data_attr); 5460 /* Virtual ports do not need ctrl_reg and mbox */ 5461 if (vport->port_type == LPFC_NPIV_PORT) 5462 return; 5463 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 5464 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 5465 } 5466 5467 /* 5468 * Dynamic FC Host Attributes Support 5469 */ 5470 5471 /** 5472 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 5473 * @shost: kernel scsi host pointer. 5474 **/ 5475 static void 5476 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 5477 { 5478 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5479 5480 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 5481 sizeof fc_host_symbolic_name(shost)); 5482 } 5483 5484 /** 5485 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 5486 * @shost: kernel scsi host pointer. 5487 **/ 5488 static void 5489 lpfc_get_host_port_id(struct Scsi_Host *shost) 5490 { 5491 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5492 5493 /* note: fc_myDID already in cpu endianness */ 5494 fc_host_port_id(shost) = vport->fc_myDID; 5495 } 5496 5497 /** 5498 * lpfc_get_host_port_type - Set the value of the scsi host port type 5499 * @shost: kernel scsi host pointer. 5500 **/ 5501 static void 5502 lpfc_get_host_port_type(struct Scsi_Host *shost) 5503 { 5504 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5505 struct lpfc_hba *phba = vport->phba; 5506 5507 spin_lock_irq(shost->host_lock); 5508 5509 if (vport->port_type == LPFC_NPIV_PORT) { 5510 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 5511 } else if (lpfc_is_link_up(phba)) { 5512 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 5513 if (vport->fc_flag & FC_PUBLIC_LOOP) 5514 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 5515 else 5516 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 5517 } else { 5518 if (vport->fc_flag & FC_FABRIC) 5519 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 5520 else 5521 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 5522 } 5523 } else 5524 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 5525 5526 spin_unlock_irq(shost->host_lock); 5527 } 5528 5529 /** 5530 * lpfc_get_host_port_state - Set the value of the scsi host port state 5531 * @shost: kernel scsi host pointer. 5532 **/ 5533 static void 5534 lpfc_get_host_port_state(struct Scsi_Host *shost) 5535 { 5536 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5537 struct lpfc_hba *phba = vport->phba; 5538 5539 spin_lock_irq(shost->host_lock); 5540 5541 if (vport->fc_flag & FC_OFFLINE_MODE) 5542 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 5543 else { 5544 switch (phba->link_state) { 5545 case LPFC_LINK_UNKNOWN: 5546 case LPFC_LINK_DOWN: 5547 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 5548 break; 5549 case LPFC_LINK_UP: 5550 case LPFC_CLEAR_LA: 5551 case LPFC_HBA_READY: 5552 /* Links up, reports port state accordingly */ 5553 if (vport->port_state < LPFC_VPORT_READY) 5554 fc_host_port_state(shost) = 5555 FC_PORTSTATE_BYPASSED; 5556 else 5557 fc_host_port_state(shost) = 5558 FC_PORTSTATE_ONLINE; 5559 break; 5560 case LPFC_HBA_ERROR: 5561 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 5562 break; 5563 default: 5564 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 5565 break; 5566 } 5567 } 5568 5569 spin_unlock_irq(shost->host_lock); 5570 } 5571 5572 /** 5573 * lpfc_get_host_speed - Set the value of the scsi host speed 5574 * @shost: kernel scsi host pointer. 5575 **/ 5576 static void 5577 lpfc_get_host_speed(struct Scsi_Host *shost) 5578 { 5579 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5580 struct lpfc_hba *phba = vport->phba; 5581 5582 spin_lock_irq(shost->host_lock); 5583 5584 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 5585 switch(phba->fc_linkspeed) { 5586 case LPFC_LINK_SPEED_1GHZ: 5587 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 5588 break; 5589 case LPFC_LINK_SPEED_2GHZ: 5590 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 5591 break; 5592 case LPFC_LINK_SPEED_4GHZ: 5593 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 5594 break; 5595 case LPFC_LINK_SPEED_8GHZ: 5596 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 5597 break; 5598 case LPFC_LINK_SPEED_10GHZ: 5599 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 5600 break; 5601 case LPFC_LINK_SPEED_16GHZ: 5602 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 5603 break; 5604 case LPFC_LINK_SPEED_32GHZ: 5605 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 5606 break; 5607 default: 5608 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 5609 break; 5610 } 5611 } else 5612 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 5613 5614 spin_unlock_irq(shost->host_lock); 5615 } 5616 5617 /** 5618 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 5619 * @shost: kernel scsi host pointer. 5620 **/ 5621 static void 5622 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 5623 { 5624 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5625 struct lpfc_hba *phba = vport->phba; 5626 u64 node_name; 5627 5628 spin_lock_irq(shost->host_lock); 5629 5630 if ((vport->port_state > LPFC_FLOGI) && 5631 ((vport->fc_flag & FC_FABRIC) || 5632 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 5633 (vport->fc_flag & FC_PUBLIC_LOOP)))) 5634 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 5635 else 5636 /* fabric is local port if there is no F/FL_Port */ 5637 node_name = 0; 5638 5639 spin_unlock_irq(shost->host_lock); 5640 5641 fc_host_fabric_name(shost) = node_name; 5642 } 5643 5644 /** 5645 * lpfc_get_stats - Return statistical information about the adapter 5646 * @shost: kernel scsi host pointer. 5647 * 5648 * Notes: 5649 * NULL on error for link down, no mbox pool, sli2 active, 5650 * management not allowed, memory allocation error, or mbox error. 5651 * 5652 * Returns: 5653 * NULL for error 5654 * address of the adapter host statistics 5655 **/ 5656 static struct fc_host_statistics * 5657 lpfc_get_stats(struct Scsi_Host *shost) 5658 { 5659 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5660 struct lpfc_hba *phba = vport->phba; 5661 struct lpfc_sli *psli = &phba->sli; 5662 struct fc_host_statistics *hs = &phba->link_stats; 5663 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 5664 LPFC_MBOXQ_t *pmboxq; 5665 MAILBOX_t *pmb; 5666 unsigned long seconds; 5667 int rc = 0; 5668 5669 /* 5670 * prevent udev from issuing mailbox commands until the port is 5671 * configured. 5672 */ 5673 if (phba->link_state < LPFC_LINK_DOWN || 5674 !phba->mbox_mem_pool || 5675 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 5676 return NULL; 5677 5678 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 5679 return NULL; 5680 5681 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5682 if (!pmboxq) 5683 return NULL; 5684 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 5685 5686 pmb = &pmboxq->u.mb; 5687 pmb->mbxCommand = MBX_READ_STATUS; 5688 pmb->mbxOwner = OWN_HOST; 5689 pmboxq->context1 = NULL; 5690 pmboxq->vport = vport; 5691 5692 if (vport->fc_flag & FC_OFFLINE_MODE) 5693 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5694 else 5695 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5696 5697 if (rc != MBX_SUCCESS) { 5698 if (rc != MBX_TIMEOUT) 5699 mempool_free(pmboxq, phba->mbox_mem_pool); 5700 return NULL; 5701 } 5702 5703 memset(hs, 0, sizeof (struct fc_host_statistics)); 5704 5705 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 5706 /* 5707 * The MBX_READ_STATUS returns tx_k_bytes which has to 5708 * converted to words 5709 */ 5710 hs->tx_words = (uint64_t) 5711 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 5712 * (uint64_t)256); 5713 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 5714 hs->rx_words = (uint64_t) 5715 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 5716 * (uint64_t)256); 5717 5718 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 5719 pmb->mbxCommand = MBX_READ_LNK_STAT; 5720 pmb->mbxOwner = OWN_HOST; 5721 pmboxq->context1 = NULL; 5722 pmboxq->vport = vport; 5723 5724 if (vport->fc_flag & FC_OFFLINE_MODE) 5725 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5726 else 5727 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5728 5729 if (rc != MBX_SUCCESS) { 5730 if (rc != MBX_TIMEOUT) 5731 mempool_free(pmboxq, phba->mbox_mem_pool); 5732 return NULL; 5733 } 5734 5735 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 5736 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 5737 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 5738 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 5739 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 5740 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 5741 hs->error_frames = pmb->un.varRdLnk.crcCnt; 5742 5743 hs->link_failure_count -= lso->link_failure_count; 5744 hs->loss_of_sync_count -= lso->loss_of_sync_count; 5745 hs->loss_of_signal_count -= lso->loss_of_signal_count; 5746 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 5747 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 5748 hs->invalid_crc_count -= lso->invalid_crc_count; 5749 hs->error_frames -= lso->error_frames; 5750 5751 if (phba->hba_flag & HBA_FCOE_MODE) { 5752 hs->lip_count = -1; 5753 hs->nos_count = (phba->link_events >> 1); 5754 hs->nos_count -= lso->link_events; 5755 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 5756 hs->lip_count = (phba->fc_eventTag >> 1); 5757 hs->lip_count -= lso->link_events; 5758 hs->nos_count = -1; 5759 } else { 5760 hs->lip_count = -1; 5761 hs->nos_count = (phba->fc_eventTag >> 1); 5762 hs->nos_count -= lso->link_events; 5763 } 5764 5765 hs->dumped_frames = -1; 5766 5767 seconds = get_seconds(); 5768 if (seconds < psli->stats_start) 5769 hs->seconds_since_last_reset = seconds + 5770 ((unsigned long)-1 - psli->stats_start); 5771 else 5772 hs->seconds_since_last_reset = seconds - psli->stats_start; 5773 5774 mempool_free(pmboxq, phba->mbox_mem_pool); 5775 5776 return hs; 5777 } 5778 5779 /** 5780 * lpfc_reset_stats - Copy the adapter link stats information 5781 * @shost: kernel scsi host pointer. 5782 **/ 5783 static void 5784 lpfc_reset_stats(struct Scsi_Host *shost) 5785 { 5786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5787 struct lpfc_hba *phba = vport->phba; 5788 struct lpfc_sli *psli = &phba->sli; 5789 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 5790 LPFC_MBOXQ_t *pmboxq; 5791 MAILBOX_t *pmb; 5792 int rc = 0; 5793 5794 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 5795 return; 5796 5797 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5798 if (!pmboxq) 5799 return; 5800 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 5801 5802 pmb = &pmboxq->u.mb; 5803 pmb->mbxCommand = MBX_READ_STATUS; 5804 pmb->mbxOwner = OWN_HOST; 5805 pmb->un.varWords[0] = 0x1; /* reset request */ 5806 pmboxq->context1 = NULL; 5807 pmboxq->vport = vport; 5808 5809 if ((vport->fc_flag & FC_OFFLINE_MODE) || 5810 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 5811 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5812 else 5813 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5814 5815 if (rc != MBX_SUCCESS) { 5816 if (rc != MBX_TIMEOUT) 5817 mempool_free(pmboxq, phba->mbox_mem_pool); 5818 return; 5819 } 5820 5821 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 5822 pmb->mbxCommand = MBX_READ_LNK_STAT; 5823 pmb->mbxOwner = OWN_HOST; 5824 pmboxq->context1 = NULL; 5825 pmboxq->vport = vport; 5826 5827 if ((vport->fc_flag & FC_OFFLINE_MODE) || 5828 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 5829 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5830 else 5831 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5832 5833 if (rc != MBX_SUCCESS) { 5834 if (rc != MBX_TIMEOUT) 5835 mempool_free( pmboxq, phba->mbox_mem_pool); 5836 return; 5837 } 5838 5839 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 5840 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 5841 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 5842 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 5843 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 5844 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 5845 lso->error_frames = pmb->un.varRdLnk.crcCnt; 5846 if (phba->hba_flag & HBA_FCOE_MODE) 5847 lso->link_events = (phba->link_events >> 1); 5848 else 5849 lso->link_events = (phba->fc_eventTag >> 1); 5850 5851 psli->stats_start = get_seconds(); 5852 5853 mempool_free(pmboxq, phba->mbox_mem_pool); 5854 5855 return; 5856 } 5857 5858 /* 5859 * The LPFC driver treats linkdown handling as target loss events so there 5860 * are no sysfs handlers for link_down_tmo. 5861 */ 5862 5863 /** 5864 * lpfc_get_node_by_target - Return the nodelist for a target 5865 * @starget: kernel scsi target pointer. 5866 * 5867 * Returns: 5868 * address of the node list if found 5869 * NULL target not found 5870 **/ 5871 static struct lpfc_nodelist * 5872 lpfc_get_node_by_target(struct scsi_target *starget) 5873 { 5874 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 5875 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5876 struct lpfc_nodelist *ndlp; 5877 5878 spin_lock_irq(shost->host_lock); 5879 /* Search for this, mapped, target ID */ 5880 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5881 if (NLP_CHK_NODE_ACT(ndlp) && 5882 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 5883 starget->id == ndlp->nlp_sid) { 5884 spin_unlock_irq(shost->host_lock); 5885 return ndlp; 5886 } 5887 } 5888 spin_unlock_irq(shost->host_lock); 5889 return NULL; 5890 } 5891 5892 /** 5893 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 5894 * @starget: kernel scsi target pointer. 5895 **/ 5896 static void 5897 lpfc_get_starget_port_id(struct scsi_target *starget) 5898 { 5899 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5900 5901 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 5902 } 5903 5904 /** 5905 * lpfc_get_starget_node_name - Set the target node name 5906 * @starget: kernel scsi target pointer. 5907 * 5908 * Description: Set the target node name to the ndlp node name wwn or zero. 5909 **/ 5910 static void 5911 lpfc_get_starget_node_name(struct scsi_target *starget) 5912 { 5913 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5914 5915 fc_starget_node_name(starget) = 5916 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 5917 } 5918 5919 /** 5920 * lpfc_get_starget_port_name - Set the target port name 5921 * @starget: kernel scsi target pointer. 5922 * 5923 * Description: set the target port name to the ndlp port name wwn or zero. 5924 **/ 5925 static void 5926 lpfc_get_starget_port_name(struct scsi_target *starget) 5927 { 5928 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5929 5930 fc_starget_port_name(starget) = 5931 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 5932 } 5933 5934 /** 5935 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 5936 * @rport: fc rport address. 5937 * @timeout: new value for dev loss tmo. 5938 * 5939 * Description: 5940 * If timeout is non zero set the dev_loss_tmo to timeout, else set 5941 * dev_loss_tmo to one. 5942 **/ 5943 static void 5944 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 5945 { 5946 if (timeout) 5947 rport->dev_loss_tmo = timeout; 5948 else 5949 rport->dev_loss_tmo = 1; 5950 } 5951 5952 /** 5953 * lpfc_rport_show_function - Return rport target information 5954 * 5955 * Description: 5956 * Macro that uses field to generate a function with the name lpfc_show_rport_ 5957 * 5958 * lpfc_show_rport_##field: returns the bytes formatted in buf 5959 * @cdev: class converted to an fc_rport. 5960 * @buf: on return contains the target_field or zero. 5961 * 5962 * Returns: size of formatted string. 5963 **/ 5964 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 5965 static ssize_t \ 5966 lpfc_show_rport_##field (struct device *dev, \ 5967 struct device_attribute *attr, \ 5968 char *buf) \ 5969 { \ 5970 struct fc_rport *rport = transport_class_to_rport(dev); \ 5971 struct lpfc_rport_data *rdata = rport->hostdata; \ 5972 return snprintf(buf, sz, format_string, \ 5973 (rdata->target) ? cast rdata->target->field : 0); \ 5974 } 5975 5976 #define lpfc_rport_rd_attr(field, format_string, sz) \ 5977 lpfc_rport_show_function(field, format_string, sz, ) \ 5978 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 5979 5980 /** 5981 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 5982 * @fc_vport: The fc_vport who's symbolic name has been changed. 5983 * 5984 * Description: 5985 * This function is called by the transport after the @fc_vport's symbolic name 5986 * has been changed. This function re-registers the symbolic name with the 5987 * switch to propagate the change into the fabric if the vport is active. 5988 **/ 5989 static void 5990 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 5991 { 5992 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 5993 5994 if (vport->port_state == LPFC_VPORT_READY) 5995 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 5996 } 5997 5998 /** 5999 * lpfc_hba_log_verbose_init - Set hba's log verbose level 6000 * @phba: Pointer to lpfc_hba struct. 6001 * 6002 * This function is called by the lpfc_get_cfgparam() routine to set the 6003 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 6004 * log message according to the module's lpfc_log_verbose parameter setting 6005 * before hba port or vport created. 6006 **/ 6007 static void 6008 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 6009 { 6010 phba->cfg_log_verbose = verbose; 6011 } 6012 6013 struct fc_function_template lpfc_transport_functions = { 6014 /* fixed attributes the driver supports */ 6015 .show_host_node_name = 1, 6016 .show_host_port_name = 1, 6017 .show_host_supported_classes = 1, 6018 .show_host_supported_fc4s = 1, 6019 .show_host_supported_speeds = 1, 6020 .show_host_maxframe_size = 1, 6021 6022 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6023 .show_host_symbolic_name = 1, 6024 6025 /* dynamic attributes the driver supports */ 6026 .get_host_port_id = lpfc_get_host_port_id, 6027 .show_host_port_id = 1, 6028 6029 .get_host_port_type = lpfc_get_host_port_type, 6030 .show_host_port_type = 1, 6031 6032 .get_host_port_state = lpfc_get_host_port_state, 6033 .show_host_port_state = 1, 6034 6035 /* active_fc4s is shown but doesn't change (thus no get function) */ 6036 .show_host_active_fc4s = 1, 6037 6038 .get_host_speed = lpfc_get_host_speed, 6039 .show_host_speed = 1, 6040 6041 .get_host_fabric_name = lpfc_get_host_fabric_name, 6042 .show_host_fabric_name = 1, 6043 6044 /* 6045 * The LPFC driver treats linkdown handling as target loss events 6046 * so there are no sysfs handlers for link_down_tmo. 6047 */ 6048 6049 .get_fc_host_stats = lpfc_get_stats, 6050 .reset_fc_host_stats = lpfc_reset_stats, 6051 6052 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6053 .show_rport_maxframe_size = 1, 6054 .show_rport_supported_classes = 1, 6055 6056 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6057 .show_rport_dev_loss_tmo = 1, 6058 6059 .get_starget_port_id = lpfc_get_starget_port_id, 6060 .show_starget_port_id = 1, 6061 6062 .get_starget_node_name = lpfc_get_starget_node_name, 6063 .show_starget_node_name = 1, 6064 6065 .get_starget_port_name = lpfc_get_starget_port_name, 6066 .show_starget_port_name = 1, 6067 6068 .issue_fc_host_lip = lpfc_issue_lip, 6069 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6070 .terminate_rport_io = lpfc_terminate_rport_io, 6071 6072 .dd_fcvport_size = sizeof(struct lpfc_vport *), 6073 6074 .vport_disable = lpfc_vport_disable, 6075 6076 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6077 6078 .bsg_request = lpfc_bsg_request, 6079 .bsg_timeout = lpfc_bsg_timeout, 6080 }; 6081 6082 struct fc_function_template lpfc_vport_transport_functions = { 6083 /* fixed attributes the driver supports */ 6084 .show_host_node_name = 1, 6085 .show_host_port_name = 1, 6086 .show_host_supported_classes = 1, 6087 .show_host_supported_fc4s = 1, 6088 .show_host_supported_speeds = 1, 6089 .show_host_maxframe_size = 1, 6090 6091 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6092 .show_host_symbolic_name = 1, 6093 6094 /* dynamic attributes the driver supports */ 6095 .get_host_port_id = lpfc_get_host_port_id, 6096 .show_host_port_id = 1, 6097 6098 .get_host_port_type = lpfc_get_host_port_type, 6099 .show_host_port_type = 1, 6100 6101 .get_host_port_state = lpfc_get_host_port_state, 6102 .show_host_port_state = 1, 6103 6104 /* active_fc4s is shown but doesn't change (thus no get function) */ 6105 .show_host_active_fc4s = 1, 6106 6107 .get_host_speed = lpfc_get_host_speed, 6108 .show_host_speed = 1, 6109 6110 .get_host_fabric_name = lpfc_get_host_fabric_name, 6111 .show_host_fabric_name = 1, 6112 6113 /* 6114 * The LPFC driver treats linkdown handling as target loss events 6115 * so there are no sysfs handlers for link_down_tmo. 6116 */ 6117 6118 .get_fc_host_stats = lpfc_get_stats, 6119 .reset_fc_host_stats = lpfc_reset_stats, 6120 6121 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6122 .show_rport_maxframe_size = 1, 6123 .show_rport_supported_classes = 1, 6124 6125 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6126 .show_rport_dev_loss_tmo = 1, 6127 6128 .get_starget_port_id = lpfc_get_starget_port_id, 6129 .show_starget_port_id = 1, 6130 6131 .get_starget_node_name = lpfc_get_starget_node_name, 6132 .show_starget_node_name = 1, 6133 6134 .get_starget_port_name = lpfc_get_starget_port_name, 6135 .show_starget_port_name = 1, 6136 6137 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6138 .terminate_rport_io = lpfc_terminate_rport_io, 6139 6140 .vport_disable = lpfc_vport_disable, 6141 6142 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6143 }; 6144 6145 /** 6146 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 6147 * @phba: lpfc_hba pointer. 6148 **/ 6149 void 6150 lpfc_get_cfgparam(struct lpfc_hba *phba) 6151 { 6152 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 6153 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 6154 lpfc_cr_delay_init(phba, lpfc_cr_delay); 6155 lpfc_cr_count_init(phba, lpfc_cr_count); 6156 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 6157 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 6158 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 6159 lpfc_ack0_init(phba, lpfc_ack0); 6160 lpfc_topology_init(phba, lpfc_topology); 6161 lpfc_link_speed_init(phba, lpfc_link_speed); 6162 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 6163 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 6164 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 6165 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 6166 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 6167 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 6168 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 6169 lpfc_use_msi_init(phba, lpfc_use_msi); 6170 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 6171 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 6172 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 6173 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 6174 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 6175 6176 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 6177 if (phba->sli_rev != LPFC_SLI_REV4) 6178 phba->cfg_EnableXLane = 0; 6179 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 6180 6181 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 6182 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 6183 phba->cfg_oas_lun_state = 0; 6184 phba->cfg_oas_lun_status = 0; 6185 phba->cfg_oas_flags = 0; 6186 phba->cfg_oas_priority = 0; 6187 lpfc_enable_bg_init(phba, lpfc_enable_bg); 6188 lpfc_prot_mask_init(phba, lpfc_prot_mask); 6189 lpfc_prot_guard_init(phba, lpfc_prot_guard); 6190 if (phba->sli_rev == LPFC_SLI_REV4) 6191 phba->cfg_poll = 0; 6192 else 6193 phba->cfg_poll = lpfc_poll; 6194 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 6195 6196 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 6197 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 6198 6199 /* Initialize first burst. Target vs Initiator are different. */ 6200 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 6201 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 6202 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel); 6203 lpfc_nvme_io_channel_init(phba, lpfc_nvme_io_channel); 6204 6205 if (phba->sli_rev != LPFC_SLI_REV4) { 6206 /* NVME only supported on SLI4 */ 6207 phba->nvmet_support = 0; 6208 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 6209 } else { 6210 /* We MUST have FCP support */ 6211 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 6212 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 6213 } 6214 6215 /* A value of 0 means use the number of CPUs found in the system */ 6216 if (phba->cfg_fcp_io_channel == 0) 6217 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6218 if (phba->cfg_nvme_io_channel == 0) 6219 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6220 6221 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 6222 phba->cfg_fcp_io_channel = 0; 6223 6224 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) 6225 phba->cfg_nvme_io_channel = 0; 6226 6227 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6228 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6229 else 6230 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6231 6232 phba->cfg_soft_wwnn = 0L; 6233 phba->cfg_soft_wwpn = 0L; 6234 lpfc_xri_split_init(phba, lpfc_xri_split); 6235 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 6236 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 6237 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 6238 lpfc_aer_support_init(phba, lpfc_aer_support); 6239 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 6240 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 6241 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 6242 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); 6243 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 6244 lpfc_sli_mode_init(phba, lpfc_sli_mode); 6245 phba->cfg_enable_dss = 1; 6246 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 6247 return; 6248 } 6249 6250 /** 6251 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 6252 * dependencies between protocols and roles. 6253 * @phba: lpfc_hba pointer. 6254 **/ 6255 void 6256 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 6257 { 6258 if (phba->cfg_nvme_io_channel > phba->sli4_hba.num_present_cpu) 6259 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6260 6261 if (phba->cfg_fcp_io_channel > phba->sli4_hba.num_present_cpu) 6262 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6263 6264 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 6265 phba->nvmet_support) { 6266 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 6267 phba->cfg_fcp_io_channel = 0; 6268 6269 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 6270 "6013 %s x%x fb_size x%x, fb_max x%x\n", 6271 "NVME Target PRLI ACC enable_fb ", 6272 phba->cfg_nvme_enable_fb, 6273 phba->cfg_nvmet_fb_size, 6274 LPFC_NVMET_FB_SZ_MAX); 6275 6276 if (phba->cfg_nvme_enable_fb == 0) 6277 phba->cfg_nvmet_fb_size = 0; 6278 else { 6279 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 6280 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 6281 } 6282 6283 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 6284 if (phba->cfg_nvmet_mrq > phba->cfg_nvme_io_channel) { 6285 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 6286 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 6287 "6018 Adjust lpfc_nvmet_mrq to %d\n", 6288 phba->cfg_nvmet_mrq); 6289 } 6290 } else { 6291 /* Not NVME Target mode. Turn off Target parameters. */ 6292 phba->nvmet_support = 0; 6293 phba->cfg_nvmet_mrq = 0; 6294 phba->cfg_nvmet_fb_size = 0; 6295 } 6296 6297 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6298 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6299 else 6300 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6301 } 6302 6303 /** 6304 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 6305 * @vport: lpfc_vport pointer. 6306 **/ 6307 void 6308 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 6309 { 6310 lpfc_log_verbose_init(vport, lpfc_log_verbose); 6311 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 6312 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 6313 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 6314 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 6315 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 6316 lpfc_restrict_login_init(vport, lpfc_restrict_login); 6317 lpfc_fcp_class_init(vport, lpfc_fcp_class); 6318 lpfc_use_adisc_init(vport, lpfc_use_adisc); 6319 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 6320 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 6321 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 6322 lpfc_max_luns_init(vport, lpfc_max_luns); 6323 lpfc_scan_down_init(vport, lpfc_scan_down); 6324 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 6325 return; 6326 } 6327