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_nodelist *ndlp; 152 struct nvme_fc_remote_port *nrport; 153 uint64_t data1, data2, data3, tot; 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 spin_lock(&phba->sli4_hba.nvmet_ctx_get_lock); 249 spin_lock(&phba->sli4_hba.nvmet_ctx_put_lock); 250 tot = phba->sli4_hba.nvmet_xri_cnt - 251 (phba->sli4_hba.nvmet_ctx_get_cnt + 252 phba->sli4_hba.nvmet_ctx_put_cnt); 253 spin_unlock(&phba->sli4_hba.nvmet_ctx_put_lock); 254 spin_unlock(&phba->sli4_hba.nvmet_ctx_get_lock); 255 256 len += snprintf(buf + len, PAGE_SIZE - len, 257 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 258 "CTX Outstanding %08llx\n", 259 phba->sli4_hba.nvmet_xri_cnt, 260 phba->sli4_hba.nvmet_io_wait_cnt, 261 phba->sli4_hba.nvmet_io_wait_total, 262 tot); 263 264 len += snprintf(buf+len, PAGE_SIZE-len, "\n"); 265 return len; 266 } 267 268 localport = vport->localport; 269 if (!localport) { 270 len = snprintf(buf, PAGE_SIZE, 271 "NVME Initiator x%llx is not allocated\n", 272 wwn_to_u64(vport->fc_portname.u.wwn)); 273 return len; 274 } 275 len = snprintf(buf, PAGE_SIZE, "NVME Initiator Enabled\n"); 276 277 spin_lock_irq(shost->host_lock); 278 279 /* Port state is only one of two values for now. */ 280 if (localport->port_id) 281 statep = "ONLINE"; 282 else 283 statep = "UNKNOWN "; 284 285 len += snprintf(buf + len, PAGE_SIZE - len, 286 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 287 "NVME LPORT lpfc", 288 phba->brd_no, 289 wwn_to_u64(vport->fc_portname.u.wwn), 290 wwn_to_u64(vport->fc_nodename.u.wwn), 291 localport->port_id, statep); 292 293 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 294 if (!ndlp->nrport) 295 continue; 296 297 /* local short-hand pointer. */ 298 nrport = ndlp->nrport->remoteport; 299 300 /* Port state is only one of two values for now. */ 301 switch (nrport->port_state) { 302 case FC_OBJSTATE_ONLINE: 303 statep = "ONLINE"; 304 break; 305 case FC_OBJSTATE_UNKNOWN: 306 statep = "UNKNOWN "; 307 break; 308 default: 309 statep = "UNSUPPORTED"; 310 break; 311 } 312 313 /* Tab in to show lport ownership. */ 314 len += snprintf(buf + len, PAGE_SIZE - len, 315 "NVME RPORT "); 316 if (phba->brd_no >= 10) 317 len += snprintf(buf + len, PAGE_SIZE - len, " "); 318 319 len += snprintf(buf + len, PAGE_SIZE - len, "WWPN x%llx ", 320 nrport->port_name); 321 len += snprintf(buf + len, PAGE_SIZE - len, "WWNN x%llx ", 322 nrport->node_name); 323 len += snprintf(buf + len, PAGE_SIZE - len, "DID x%06x ", 324 nrport->port_id); 325 326 /* An NVME rport can have multiple roles. */ 327 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) 328 len += snprintf(buf + len, PAGE_SIZE - len, 329 "INITIATOR "); 330 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) 331 len += snprintf(buf + len, PAGE_SIZE - len, 332 "TARGET "); 333 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) 334 len += snprintf(buf + len, PAGE_SIZE - len, 335 "DISCSRVC "); 336 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 337 FC_PORT_ROLE_NVME_TARGET | 338 FC_PORT_ROLE_NVME_DISCOVERY)) 339 len += snprintf(buf + len, PAGE_SIZE - len, 340 "UNKNOWN ROLE x%x", 341 nrport->port_role); 342 343 len += snprintf(buf + len, PAGE_SIZE - len, "%s ", statep); 344 /* Terminate the string. */ 345 len += snprintf(buf + len, PAGE_SIZE - len, "\n"); 346 } 347 spin_unlock_irq(shost->host_lock); 348 349 len += snprintf(buf + len, PAGE_SIZE - len, "\nNVME Statistics\n"); 350 len += snprintf(buf+len, PAGE_SIZE-len, 351 "LS: Xmt %016x Cmpl %016x\n", 352 atomic_read(&phba->fc4NvmeLsRequests), 353 atomic_read(&phba->fc4NvmeLsCmpls)); 354 355 tot = atomic_read(&phba->fc4NvmeIoCmpls); 356 data1 = atomic_read(&phba->fc4NvmeInputRequests); 357 data2 = atomic_read(&phba->fc4NvmeOutputRequests); 358 data3 = atomic_read(&phba->fc4NvmeControlRequests); 359 len += snprintf(buf+len, PAGE_SIZE-len, 360 "FCP: Rd %016llx Wr %016llx IO %016llx\n", 361 data1, data2, data3); 362 363 len += snprintf(buf+len, PAGE_SIZE-len, 364 " Cmpl %016llx Outstanding %016llx\n", 365 tot, (data1 + data2 + data3) - tot); 366 return len; 367 } 368 369 static ssize_t 370 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 371 char *buf) 372 { 373 struct Scsi_Host *shost = class_to_shost(dev); 374 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 375 struct lpfc_hba *phba = vport->phba; 376 377 if (phba->cfg_enable_bg) 378 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 379 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); 380 else 381 return snprintf(buf, PAGE_SIZE, 382 "BlockGuard Not Supported\n"); 383 else 384 return snprintf(buf, PAGE_SIZE, 385 "BlockGuard Disabled\n"); 386 } 387 388 static ssize_t 389 lpfc_bg_guard_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_guard_err_cnt); 398 } 399 400 static ssize_t 401 lpfc_bg_apptag_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_apptag_err_cnt); 410 } 411 412 static ssize_t 413 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 414 char *buf) 415 { 416 struct Scsi_Host *shost = class_to_shost(dev); 417 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 418 struct lpfc_hba *phba = vport->phba; 419 420 return snprintf(buf, PAGE_SIZE, "%llu\n", 421 (unsigned long long)phba->bg_reftag_err_cnt); 422 } 423 424 /** 425 * lpfc_info_show - Return some pci info about the host in ascii 426 * @dev: class converted to a Scsi_host structure. 427 * @attr: device attribute, not used. 428 * @buf: on return contains the formatted text from lpfc_info(). 429 * 430 * Returns: size of formatted string. 431 **/ 432 static ssize_t 433 lpfc_info_show(struct device *dev, struct device_attribute *attr, 434 char *buf) 435 { 436 struct Scsi_Host *host = class_to_shost(dev); 437 438 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); 439 } 440 441 /** 442 * lpfc_serialnum_show - Return the hba serial number in ascii 443 * @dev: class converted to a Scsi_host structure. 444 * @attr: device attribute, not used. 445 * @buf: on return contains the formatted text serial number. 446 * 447 * Returns: size of formatted string. 448 **/ 449 static ssize_t 450 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 451 char *buf) 452 { 453 struct Scsi_Host *shost = class_to_shost(dev); 454 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 455 struct lpfc_hba *phba = vport->phba; 456 457 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); 458 } 459 460 /** 461 * lpfc_temp_sensor_show - Return the temperature sensor level 462 * @dev: class converted to a Scsi_host structure. 463 * @attr: device attribute, not used. 464 * @buf: on return contains the formatted support level. 465 * 466 * Description: 467 * Returns a number indicating the temperature sensor level currently 468 * supported, zero or one in ascii. 469 * 470 * Returns: size of formatted string. 471 **/ 472 static ssize_t 473 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 474 char *buf) 475 { 476 struct Scsi_Host *shost = class_to_shost(dev); 477 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 478 struct lpfc_hba *phba = vport->phba; 479 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); 480 } 481 482 /** 483 * lpfc_modeldesc_show - Return the model description of the hba 484 * @dev: class converted to a Scsi_host structure. 485 * @attr: device attribute, not used. 486 * @buf: on return contains the scsi vpd model description. 487 * 488 * Returns: size of formatted string. 489 **/ 490 static ssize_t 491 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 492 char *buf) 493 { 494 struct Scsi_Host *shost = class_to_shost(dev); 495 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 496 struct lpfc_hba *phba = vport->phba; 497 498 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); 499 } 500 501 /** 502 * lpfc_modelname_show - Return the model name of the hba 503 * @dev: class converted to a Scsi_host structure. 504 * @attr: device attribute, not used. 505 * @buf: on return contains the scsi vpd model name. 506 * 507 * Returns: size of formatted string. 508 **/ 509 static ssize_t 510 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 511 char *buf) 512 { 513 struct Scsi_Host *shost = class_to_shost(dev); 514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 515 struct lpfc_hba *phba = vport->phba; 516 517 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); 518 } 519 520 /** 521 * lpfc_programtype_show - Return the program type of the hba 522 * @dev: class converted to a Scsi_host structure. 523 * @attr: device attribute, not used. 524 * @buf: on return contains the scsi vpd program type. 525 * 526 * Returns: size of formatted string. 527 **/ 528 static ssize_t 529 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 530 char *buf) 531 { 532 struct Scsi_Host *shost = class_to_shost(dev); 533 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 534 struct lpfc_hba *phba = vport->phba; 535 536 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); 537 } 538 539 /** 540 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 541 * @dev: class converted to a Scsi_host structure. 542 * @attr: device attribute, not used. 543 * @buf: on return contains the Menlo Maintenance sli flag. 544 * 545 * Returns: size of formatted string. 546 **/ 547 static ssize_t 548 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 549 { 550 struct Scsi_Host *shost = class_to_shost(dev); 551 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 552 struct lpfc_hba *phba = vport->phba; 553 554 return snprintf(buf, PAGE_SIZE, "%d\n", 555 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 556 } 557 558 /** 559 * lpfc_vportnum_show - Return the port number in ascii of the hba 560 * @dev: class converted to a Scsi_host structure. 561 * @attr: device attribute, not used. 562 * @buf: on return contains scsi vpd program type. 563 * 564 * Returns: size of formatted string. 565 **/ 566 static ssize_t 567 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 568 char *buf) 569 { 570 struct Scsi_Host *shost = class_to_shost(dev); 571 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 572 struct lpfc_hba *phba = vport->phba; 573 574 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); 575 } 576 577 /** 578 * lpfc_fwrev_show - Return the firmware rev running in the hba 579 * @dev: class converted to a Scsi_host structure. 580 * @attr: device attribute, not used. 581 * @buf: on return contains the scsi vpd program type. 582 * 583 * Returns: size of formatted string. 584 **/ 585 static ssize_t 586 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 587 char *buf) 588 { 589 struct Scsi_Host *shost = class_to_shost(dev); 590 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 591 struct lpfc_hba *phba = vport->phba; 592 uint32_t if_type; 593 uint8_t sli_family; 594 char fwrev[FW_REV_STR_SIZE]; 595 int len; 596 597 lpfc_decode_firmware_rev(phba, fwrev, 1); 598 if_type = phba->sli4_hba.pc_sli4_params.if_type; 599 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 600 601 if (phba->sli_rev < LPFC_SLI_REV4) 602 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 603 fwrev, phba->sli_rev); 604 else 605 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 606 fwrev, phba->sli_rev, if_type, sli_family); 607 608 return len; 609 } 610 611 /** 612 * lpfc_hdw_show - Return the jedec information about the hba 613 * @dev: class converted to a Scsi_host structure. 614 * @attr: device attribute, not used. 615 * @buf: on return contains the scsi vpd program type. 616 * 617 * Returns: size of formatted string. 618 **/ 619 static ssize_t 620 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 621 { 622 char hdw[9]; 623 struct Scsi_Host *shost = class_to_shost(dev); 624 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 625 struct lpfc_hba *phba = vport->phba; 626 lpfc_vpd_t *vp = &phba->vpd; 627 628 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 629 return snprintf(buf, PAGE_SIZE, "%s\n", hdw); 630 } 631 632 /** 633 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 634 * @dev: class converted to a Scsi_host structure. 635 * @attr: device attribute, not used. 636 * @buf: on return contains the ROM and FCode ascii strings. 637 * 638 * Returns: size of formatted string. 639 **/ 640 static ssize_t 641 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 642 char *buf) 643 { 644 struct Scsi_Host *shost = class_to_shost(dev); 645 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 646 struct lpfc_hba *phba = vport->phba; 647 char fwrev[FW_REV_STR_SIZE]; 648 649 if (phba->sli_rev < LPFC_SLI_REV4) 650 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); 651 652 lpfc_decode_firmware_rev(phba, fwrev, 1); 653 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev); 654 } 655 656 /** 657 * lpfc_state_show - Return the link state of the port 658 * @dev: class converted to a Scsi_host structure. 659 * @attr: device attribute, not used. 660 * @buf: on return contains text describing the state of the link. 661 * 662 * Notes: 663 * The switch statement has no default so zero will be returned. 664 * 665 * Returns: size of formatted string. 666 **/ 667 static ssize_t 668 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 669 char *buf) 670 { 671 struct Scsi_Host *shost = class_to_shost(dev); 672 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 673 struct lpfc_hba *phba = vport->phba; 674 int len = 0; 675 676 switch (phba->link_state) { 677 case LPFC_LINK_UNKNOWN: 678 case LPFC_WARM_START: 679 case LPFC_INIT_START: 680 case LPFC_INIT_MBX_CMDS: 681 case LPFC_LINK_DOWN: 682 case LPFC_HBA_ERROR: 683 if (phba->hba_flag & LINK_DISABLED) 684 len += snprintf(buf + len, PAGE_SIZE-len, 685 "Link Down - User disabled\n"); 686 else 687 len += snprintf(buf + len, PAGE_SIZE-len, 688 "Link Down\n"); 689 break; 690 case LPFC_LINK_UP: 691 case LPFC_CLEAR_LA: 692 case LPFC_HBA_READY: 693 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 694 695 switch (vport->port_state) { 696 case LPFC_LOCAL_CFG_LINK: 697 len += snprintf(buf + len, PAGE_SIZE-len, 698 "Configuring Link\n"); 699 break; 700 case LPFC_FDISC: 701 case LPFC_FLOGI: 702 case LPFC_FABRIC_CFG_LINK: 703 case LPFC_NS_REG: 704 case LPFC_NS_QRY: 705 case LPFC_BUILD_DISC_LIST: 706 case LPFC_DISC_AUTH: 707 len += snprintf(buf + len, PAGE_SIZE - len, 708 "Discovery\n"); 709 break; 710 case LPFC_VPORT_READY: 711 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n"); 712 break; 713 714 case LPFC_VPORT_FAILED: 715 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n"); 716 break; 717 718 case LPFC_VPORT_UNKNOWN: 719 len += snprintf(buf + len, PAGE_SIZE - len, 720 "Unknown\n"); 721 break; 722 } 723 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 724 len += snprintf(buf + len, PAGE_SIZE-len, 725 " Menlo Maint Mode\n"); 726 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 727 if (vport->fc_flag & FC_PUBLIC_LOOP) 728 len += snprintf(buf + len, PAGE_SIZE-len, 729 " Public Loop\n"); 730 else 731 len += snprintf(buf + len, PAGE_SIZE-len, 732 " Private Loop\n"); 733 } else { 734 if (vport->fc_flag & FC_FABRIC) 735 len += snprintf(buf + len, PAGE_SIZE-len, 736 " Fabric\n"); 737 else 738 len += snprintf(buf + len, PAGE_SIZE-len, 739 " Point-2-Point\n"); 740 } 741 } 742 743 return len; 744 } 745 746 /** 747 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 748 * @dev: class unused variable. 749 * @attr: device attribute, not used. 750 * @buf: on return contains the module description text. 751 * 752 * Returns: size of formatted string. 753 **/ 754 static ssize_t 755 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 756 char *buf) 757 { 758 struct Scsi_Host *shost = class_to_shost(dev); 759 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 760 struct lpfc_hba *phba = vport->phba; 761 762 if (phba->sli_rev < LPFC_SLI_REV4) 763 return snprintf(buf, PAGE_SIZE, "fc\n"); 764 765 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 766 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 767 return snprintf(buf, PAGE_SIZE, "fcoe\n"); 768 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 769 return snprintf(buf, PAGE_SIZE, "fc\n"); 770 } 771 return snprintf(buf, PAGE_SIZE, "unknown\n"); 772 } 773 774 /** 775 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 776 * (OAS) is supported. 777 * @dev: class unused variable. 778 * @attr: device attribute, not used. 779 * @buf: on return contains the module description text. 780 * 781 * Returns: size of formatted string. 782 **/ 783 static ssize_t 784 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 785 char *buf) 786 { 787 struct Scsi_Host *shost = class_to_shost(dev); 788 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 789 struct lpfc_hba *phba = vport->phba; 790 791 return snprintf(buf, PAGE_SIZE, "%d\n", 792 phba->sli4_hba.pc_sli4_params.oas_supported); 793 } 794 795 /** 796 * lpfc_link_state_store - Transition the link_state on an HBA port 797 * @dev: class device that is converted into a Scsi_host. 798 * @attr: device attribute, not used. 799 * @buf: one or more lpfc_polling_flags values. 800 * @count: not used. 801 * 802 * Returns: 803 * -EINVAL if the buffer is not "up" or "down" 804 * return from link state change function if non-zero 805 * length of the buf on success 806 **/ 807 static ssize_t 808 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 809 const char *buf, size_t count) 810 { 811 struct Scsi_Host *shost = class_to_shost(dev); 812 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 813 struct lpfc_hba *phba = vport->phba; 814 815 int status = -EINVAL; 816 817 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 818 (phba->link_state == LPFC_LINK_DOWN)) 819 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 820 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 821 (phba->link_state >= LPFC_LINK_UP)) 822 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 823 824 if (status == 0) 825 return strlen(buf); 826 else 827 return status; 828 } 829 830 /** 831 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 832 * @dev: class device that is converted into a Scsi_host. 833 * @attr: device attribute, not used. 834 * @buf: on return contains the sum of fc mapped and unmapped. 835 * 836 * Description: 837 * Returns the ascii text number of the sum of the fc mapped and unmapped 838 * vport counts. 839 * 840 * Returns: size of formatted string. 841 **/ 842 static ssize_t 843 lpfc_num_discovered_ports_show(struct device *dev, 844 struct device_attribute *attr, char *buf) 845 { 846 struct Scsi_Host *shost = class_to_shost(dev); 847 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 848 849 return snprintf(buf, PAGE_SIZE, "%d\n", 850 vport->fc_map_cnt + vport->fc_unmap_cnt); 851 } 852 853 /** 854 * lpfc_issue_lip - Misnomer, name carried over from long ago 855 * @shost: Scsi_Host pointer. 856 * 857 * Description: 858 * Bring the link down gracefully then re-init the link. The firmware will 859 * re-init the fiber channel interface as required. Does not issue a LIP. 860 * 861 * Returns: 862 * -EPERM port offline or management commands are being blocked 863 * -ENOMEM cannot allocate memory for the mailbox command 864 * -EIO error sending the mailbox command 865 * zero for success 866 **/ 867 static int 868 lpfc_issue_lip(struct Scsi_Host *shost) 869 { 870 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 871 struct lpfc_hba *phba = vport->phba; 872 LPFC_MBOXQ_t *pmboxq; 873 int mbxstatus = MBXERR_ERROR; 874 875 if ((vport->fc_flag & FC_OFFLINE_MODE) || 876 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 877 return -EPERM; 878 879 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 880 881 if (!pmboxq) 882 return -ENOMEM; 883 884 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 885 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 886 pmboxq->u.mb.mbxOwner = OWN_HOST; 887 888 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 889 890 if ((mbxstatus == MBX_SUCCESS) && 891 (pmboxq->u.mb.mbxStatus == 0 || 892 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 893 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 894 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 895 phba->cfg_link_speed); 896 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 897 phba->fc_ratov * 2); 898 if ((mbxstatus == MBX_SUCCESS) && 899 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 900 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 901 "2859 SLI authentication is required " 902 "for INIT_LINK but has not done yet\n"); 903 } 904 905 lpfc_set_loopback_flag(phba); 906 if (mbxstatus != MBX_TIMEOUT) 907 mempool_free(pmboxq, phba->mbox_mem_pool); 908 909 if (mbxstatus == MBXERR_ERROR) 910 return -EIO; 911 912 return 0; 913 } 914 915 int 916 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 917 { 918 int cnt = 0; 919 920 spin_lock_irq(lock); 921 while (!list_empty(q)) { 922 spin_unlock_irq(lock); 923 msleep(20); 924 if (cnt++ > 250) { /* 5 secs */ 925 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 926 "0466 %s %s\n", 927 "Outstanding IO when ", 928 "bringing Adapter offline\n"); 929 return 0; 930 } 931 spin_lock_irq(lock); 932 } 933 spin_unlock_irq(lock); 934 return 1; 935 } 936 937 /** 938 * lpfc_do_offline - Issues a mailbox command to bring the link down 939 * @phba: lpfc_hba pointer. 940 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 941 * 942 * Notes: 943 * Assumes any error from lpfc_do_offline() will be negative. 944 * Can wait up to 5 seconds for the port ring buffers count 945 * to reach zero, prints a warning if it is not zero and continues. 946 * lpfc_workq_post_event() returns a non-zero return code if call fails. 947 * 948 * Returns: 949 * -EIO error posting the event 950 * zero for success 951 **/ 952 static int 953 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 954 { 955 struct completion online_compl; 956 struct lpfc_queue *qp = NULL; 957 struct lpfc_sli_ring *pring; 958 struct lpfc_sli *psli; 959 int status = 0; 960 int i; 961 int rc; 962 963 init_completion(&online_compl); 964 rc = lpfc_workq_post_event(phba, &status, &online_compl, 965 LPFC_EVT_OFFLINE_PREP); 966 if (rc == 0) 967 return -ENOMEM; 968 969 wait_for_completion(&online_compl); 970 971 if (status != 0) 972 return -EIO; 973 974 psli = &phba->sli; 975 976 /* Wait a little for things to settle down, but not 977 * long enough for dev loss timeout to expire. 978 */ 979 if (phba->sli_rev != LPFC_SLI_REV4) { 980 for (i = 0; i < psli->num_rings; i++) { 981 pring = &psli->sli3_ring[i]; 982 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 983 &phba->hbalock)) 984 goto out; 985 } 986 } else { 987 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 988 pring = qp->pring; 989 if (!pring) 990 continue; 991 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 992 &pring->ring_lock)) 993 goto out; 994 } 995 } 996 out: 997 init_completion(&online_compl); 998 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 999 if (rc == 0) 1000 return -ENOMEM; 1001 1002 wait_for_completion(&online_compl); 1003 1004 if (status != 0) 1005 return -EIO; 1006 1007 return 0; 1008 } 1009 1010 /** 1011 * lpfc_selective_reset - Offline then onlines the port 1012 * @phba: lpfc_hba pointer. 1013 * 1014 * Description: 1015 * If the port is configured to allow a reset then the hba is brought 1016 * offline then online. 1017 * 1018 * Notes: 1019 * Assumes any error from lpfc_do_offline() will be negative. 1020 * Do not make this function static. 1021 * 1022 * Returns: 1023 * lpfc_do_offline() return code if not zero 1024 * -EIO reset not configured or error posting the event 1025 * zero for success 1026 **/ 1027 int 1028 lpfc_selective_reset(struct lpfc_hba *phba) 1029 { 1030 struct completion online_compl; 1031 int status = 0; 1032 int rc; 1033 1034 if (!phba->cfg_enable_hba_reset) 1035 return -EACCES; 1036 1037 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1038 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1039 1040 if (status != 0) 1041 return status; 1042 } 1043 1044 init_completion(&online_compl); 1045 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1046 LPFC_EVT_ONLINE); 1047 if (rc == 0) 1048 return -ENOMEM; 1049 1050 wait_for_completion(&online_compl); 1051 1052 if (status != 0) 1053 return -EIO; 1054 1055 return 0; 1056 } 1057 1058 /** 1059 * lpfc_issue_reset - Selectively resets an adapter 1060 * @dev: class device that is converted into a Scsi_host. 1061 * @attr: device attribute, not used. 1062 * @buf: containing the string "selective". 1063 * @count: unused variable. 1064 * 1065 * Description: 1066 * If the buf contains the string "selective" then lpfc_selective_reset() 1067 * is called to perform the reset. 1068 * 1069 * Notes: 1070 * Assumes any error from lpfc_selective_reset() will be negative. 1071 * If lpfc_selective_reset() returns zero then the length of the buffer 1072 * is returned which indicates success 1073 * 1074 * Returns: 1075 * -EINVAL if the buffer does not contain the string "selective" 1076 * length of buf if lpfc-selective_reset() if the call succeeds 1077 * return value of lpfc_selective_reset() if the call fails 1078 **/ 1079 static ssize_t 1080 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1081 const char *buf, size_t count) 1082 { 1083 struct Scsi_Host *shost = class_to_shost(dev); 1084 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1085 struct lpfc_hba *phba = vport->phba; 1086 int status = -EINVAL; 1087 1088 if (!phba->cfg_enable_hba_reset) 1089 return -EACCES; 1090 1091 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1092 status = phba->lpfc_selective_reset(phba); 1093 1094 if (status == 0) 1095 return strlen(buf); 1096 else 1097 return status; 1098 } 1099 1100 /** 1101 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1102 * @phba: lpfc_hba pointer. 1103 * 1104 * Description: 1105 * SLI4 interface type-2 device to wait on the sliport status register for 1106 * the readyness after performing a firmware reset. 1107 * 1108 * Returns: 1109 * zero for success, -EPERM when port does not have privilege to perform the 1110 * reset, -EIO when port timeout from recovering from the reset. 1111 * 1112 * Note: 1113 * As the caller will interpret the return code by value, be careful in making 1114 * change or addition to return codes. 1115 **/ 1116 int 1117 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1118 { 1119 struct lpfc_register portstat_reg = {0}; 1120 int i; 1121 1122 msleep(100); 1123 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1124 &portstat_reg.word0); 1125 1126 /* verify if privileged for the request operation */ 1127 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1128 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1129 return -EPERM; 1130 1131 /* wait for the SLI port firmware ready after firmware reset */ 1132 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1133 msleep(10); 1134 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1135 &portstat_reg.word0); 1136 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1137 continue; 1138 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1139 continue; 1140 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1141 continue; 1142 break; 1143 } 1144 1145 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1146 return 0; 1147 else 1148 return -EIO; 1149 } 1150 1151 /** 1152 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1153 * @phba: lpfc_hba pointer. 1154 * 1155 * Description: 1156 * Request SLI4 interface type-2 device to perform a physical register set 1157 * access. 1158 * 1159 * Returns: 1160 * zero for success 1161 **/ 1162 static ssize_t 1163 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1164 { 1165 struct completion online_compl; 1166 struct pci_dev *pdev = phba->pcidev; 1167 uint32_t before_fc_flag; 1168 uint32_t sriov_nr_virtfn; 1169 uint32_t reg_val; 1170 int status = 0, rc = 0; 1171 int job_posted = 1, sriov_err; 1172 1173 if (!phba->cfg_enable_hba_reset) 1174 return -EACCES; 1175 1176 if ((phba->sli_rev < LPFC_SLI_REV4) || 1177 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 1178 LPFC_SLI_INTF_IF_TYPE_2)) 1179 return -EPERM; 1180 1181 /* Keep state if we need to restore back */ 1182 before_fc_flag = phba->pport->fc_flag; 1183 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1184 1185 /* Disable SR-IOV virtual functions if enabled */ 1186 if (phba->cfg_sriov_nr_virtfn) { 1187 pci_disable_sriov(pdev); 1188 phba->cfg_sriov_nr_virtfn = 0; 1189 } 1190 1191 if (opcode == LPFC_FW_DUMP) 1192 phba->hba_flag |= HBA_FW_DUMP_OP; 1193 1194 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1195 1196 if (status != 0) { 1197 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1198 return status; 1199 } 1200 1201 /* wait for the device to be quiesced before firmware reset */ 1202 msleep(100); 1203 1204 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1205 LPFC_CTL_PDEV_CTL_OFFSET); 1206 1207 if (opcode == LPFC_FW_DUMP) 1208 reg_val |= LPFC_FW_DUMP_REQUEST; 1209 else if (opcode == LPFC_FW_RESET) 1210 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1211 else if (opcode == LPFC_DV_RESET) 1212 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1213 1214 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1215 LPFC_CTL_PDEV_CTL_OFFSET); 1216 /* flush */ 1217 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1218 1219 /* delay driver action following IF_TYPE_2 reset */ 1220 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1221 1222 if (rc == -EPERM) { 1223 /* no privilege for reset */ 1224 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1225 "3150 No privilege to perform the requested " 1226 "access: x%x\n", reg_val); 1227 } else if (rc == -EIO) { 1228 /* reset failed, there is nothing more we can do */ 1229 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1230 "3153 Fail to perform the requested " 1231 "access: x%x\n", reg_val); 1232 return rc; 1233 } 1234 1235 /* keep the original port state */ 1236 if (before_fc_flag & FC_OFFLINE_MODE) 1237 goto out; 1238 1239 init_completion(&online_compl); 1240 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1241 LPFC_EVT_ONLINE); 1242 if (!job_posted) 1243 goto out; 1244 1245 wait_for_completion(&online_compl); 1246 1247 out: 1248 /* in any case, restore the virtual functions enabled as before */ 1249 if (sriov_nr_virtfn) { 1250 sriov_err = 1251 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1252 if (!sriov_err) 1253 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1254 } 1255 1256 /* return proper error code */ 1257 if (!rc) { 1258 if (!job_posted) 1259 rc = -ENOMEM; 1260 else if (status) 1261 rc = -EIO; 1262 } 1263 return rc; 1264 } 1265 1266 /** 1267 * lpfc_nport_evt_cnt_show - Return the number of nport events 1268 * @dev: class device that is converted into a Scsi_host. 1269 * @attr: device attribute, not used. 1270 * @buf: on return contains the ascii number of nport events. 1271 * 1272 * Returns: size of formatted string. 1273 **/ 1274 static ssize_t 1275 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1276 char *buf) 1277 { 1278 struct Scsi_Host *shost = class_to_shost(dev); 1279 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1280 struct lpfc_hba *phba = vport->phba; 1281 1282 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1283 } 1284 1285 /** 1286 * lpfc_board_mode_show - Return the state of the board 1287 * @dev: class device that is converted into a Scsi_host. 1288 * @attr: device attribute, not used. 1289 * @buf: on return contains the state of the adapter. 1290 * 1291 * Returns: size of formatted string. 1292 **/ 1293 static ssize_t 1294 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1295 char *buf) 1296 { 1297 struct Scsi_Host *shost = class_to_shost(dev); 1298 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1299 struct lpfc_hba *phba = vport->phba; 1300 char * state; 1301 1302 if (phba->link_state == LPFC_HBA_ERROR) 1303 state = "error"; 1304 else if (phba->link_state == LPFC_WARM_START) 1305 state = "warm start"; 1306 else if (phba->link_state == LPFC_INIT_START) 1307 state = "offline"; 1308 else 1309 state = "online"; 1310 1311 return snprintf(buf, PAGE_SIZE, "%s\n", state); 1312 } 1313 1314 /** 1315 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1316 * @dev: class device that is converted into a Scsi_host. 1317 * @attr: device attribute, not used. 1318 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1319 * @count: unused variable. 1320 * 1321 * Returns: 1322 * -EACCES if enable hba reset not enabled 1323 * -EINVAL if the buffer does not contain a valid string (see above) 1324 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1325 * buf length greater than zero indicates success 1326 **/ 1327 static ssize_t 1328 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1329 const char *buf, size_t count) 1330 { 1331 struct Scsi_Host *shost = class_to_shost(dev); 1332 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1333 struct lpfc_hba *phba = vport->phba; 1334 struct completion online_compl; 1335 char *board_mode_str = NULL; 1336 int status = 0; 1337 int rc; 1338 1339 if (!phba->cfg_enable_hba_reset) { 1340 status = -EACCES; 1341 goto board_mode_out; 1342 } 1343 1344 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1345 "3050 lpfc_board_mode set to %s\n", buf); 1346 1347 init_completion(&online_compl); 1348 1349 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1350 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1351 LPFC_EVT_ONLINE); 1352 if (rc == 0) { 1353 status = -ENOMEM; 1354 goto board_mode_out; 1355 } 1356 wait_for_completion(&online_compl); 1357 if (status) 1358 status = -EIO; 1359 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1360 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1361 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1362 if (phba->sli_rev == LPFC_SLI_REV4) 1363 status = -EINVAL; 1364 else 1365 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1366 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1367 if (phba->sli_rev == LPFC_SLI_REV4) 1368 status = -EINVAL; 1369 else 1370 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1371 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1372 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1373 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1374 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1375 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1376 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1377 else 1378 status = -EINVAL; 1379 1380 board_mode_out: 1381 if (!status) 1382 return strlen(buf); 1383 else { 1384 board_mode_str = strchr(buf, '\n'); 1385 if (board_mode_str) 1386 *board_mode_str = '\0'; 1387 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1388 "3097 Failed \"%s\", status(%d), " 1389 "fc_flag(x%x)\n", 1390 buf, status, phba->pport->fc_flag); 1391 return status; 1392 } 1393 } 1394 1395 /** 1396 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1397 * @phba: pointer to the adapter structure. 1398 * @mxri: max xri count. 1399 * @axri: available xri count. 1400 * @mrpi: max rpi count. 1401 * @arpi: available rpi count. 1402 * @mvpi: max vpi count. 1403 * @avpi: available vpi count. 1404 * 1405 * Description: 1406 * If an integer pointer for an count is not null then the value for the 1407 * count is returned. 1408 * 1409 * Returns: 1410 * zero on error 1411 * one for success 1412 **/ 1413 static int 1414 lpfc_get_hba_info(struct lpfc_hba *phba, 1415 uint32_t *mxri, uint32_t *axri, 1416 uint32_t *mrpi, uint32_t *arpi, 1417 uint32_t *mvpi, uint32_t *avpi) 1418 { 1419 struct lpfc_mbx_read_config *rd_config; 1420 LPFC_MBOXQ_t *pmboxq; 1421 MAILBOX_t *pmb; 1422 int rc = 0; 1423 uint32_t max_vpi; 1424 1425 /* 1426 * prevent udev from issuing mailbox commands until the port is 1427 * configured. 1428 */ 1429 if (phba->link_state < LPFC_LINK_DOWN || 1430 !phba->mbox_mem_pool || 1431 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1432 return 0; 1433 1434 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1435 return 0; 1436 1437 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1438 if (!pmboxq) 1439 return 0; 1440 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1441 1442 pmb = &pmboxq->u.mb; 1443 pmb->mbxCommand = MBX_READ_CONFIG; 1444 pmb->mbxOwner = OWN_HOST; 1445 pmboxq->context1 = NULL; 1446 1447 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1448 rc = MBX_NOT_FINISHED; 1449 else 1450 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1451 1452 if (rc != MBX_SUCCESS) { 1453 if (rc != MBX_TIMEOUT) 1454 mempool_free(pmboxq, phba->mbox_mem_pool); 1455 return 0; 1456 } 1457 1458 if (phba->sli_rev == LPFC_SLI_REV4) { 1459 rd_config = &pmboxq->u.mqe.un.rd_config; 1460 if (mrpi) 1461 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1462 if (arpi) 1463 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1464 phba->sli4_hba.max_cfg_param.rpi_used; 1465 if (mxri) 1466 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1467 if (axri) 1468 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1469 phba->sli4_hba.max_cfg_param.xri_used; 1470 1471 /* Account for differences with SLI-3. Get vpi count from 1472 * mailbox data and subtract one for max vpi value. 1473 */ 1474 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1475 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1476 1477 if (mvpi) 1478 *mvpi = max_vpi; 1479 if (avpi) 1480 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1481 } else { 1482 if (mrpi) 1483 *mrpi = pmb->un.varRdConfig.max_rpi; 1484 if (arpi) 1485 *arpi = pmb->un.varRdConfig.avail_rpi; 1486 if (mxri) 1487 *mxri = pmb->un.varRdConfig.max_xri; 1488 if (axri) 1489 *axri = pmb->un.varRdConfig.avail_xri; 1490 if (mvpi) 1491 *mvpi = pmb->un.varRdConfig.max_vpi; 1492 if (avpi) 1493 *avpi = pmb->un.varRdConfig.avail_vpi; 1494 } 1495 1496 mempool_free(pmboxq, phba->mbox_mem_pool); 1497 return 1; 1498 } 1499 1500 /** 1501 * lpfc_max_rpi_show - Return maximum rpi 1502 * @dev: class device that is converted into a Scsi_host. 1503 * @attr: device attribute, not used. 1504 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1505 * 1506 * Description: 1507 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1508 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1509 * to "Unknown" and the buffer length is returned, therefore the caller 1510 * must check for "Unknown" in the buffer to detect a failure. 1511 * 1512 * Returns: size of formatted string. 1513 **/ 1514 static ssize_t 1515 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1516 char *buf) 1517 { 1518 struct Scsi_Host *shost = class_to_shost(dev); 1519 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1520 struct lpfc_hba *phba = vport->phba; 1521 uint32_t cnt; 1522 1523 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1524 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1525 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1526 } 1527 1528 /** 1529 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1530 * @dev: class device that is converted into a Scsi_host. 1531 * @attr: device attribute, not used. 1532 * @buf: containing the used rpi count in decimal or "Unknown". 1533 * 1534 * Description: 1535 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1536 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1537 * to "Unknown" and the buffer length is returned, therefore the caller 1538 * must check for "Unknown" in the buffer to detect a failure. 1539 * 1540 * Returns: size of formatted string. 1541 **/ 1542 static ssize_t 1543 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1544 char *buf) 1545 { 1546 struct Scsi_Host *shost = class_to_shost(dev); 1547 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1548 struct lpfc_hba *phba = vport->phba; 1549 uint32_t cnt, acnt; 1550 1551 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1552 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1553 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1554 } 1555 1556 /** 1557 * lpfc_max_xri_show - Return maximum xri 1558 * @dev: class device that is converted into a Scsi_host. 1559 * @attr: device attribute, not used. 1560 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1561 * 1562 * Description: 1563 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1564 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1565 * to "Unknown" and the buffer length is returned, therefore the caller 1566 * must check for "Unknown" in the buffer to detect a failure. 1567 * 1568 * Returns: size of formatted string. 1569 **/ 1570 static ssize_t 1571 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1572 char *buf) 1573 { 1574 struct Scsi_Host *shost = class_to_shost(dev); 1575 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1576 struct lpfc_hba *phba = vport->phba; 1577 uint32_t cnt; 1578 1579 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 1580 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1581 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1582 } 1583 1584 /** 1585 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 1586 * @dev: class device that is converted into a Scsi_host. 1587 * @attr: device attribute, not used. 1588 * @buf: on return contains the used xri count in decimal or "Unknown". 1589 * 1590 * Description: 1591 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 1592 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1593 * to "Unknown" and the buffer length is returned, therefore the caller 1594 * must check for "Unknown" in the buffer to detect a failure. 1595 * 1596 * Returns: size of formatted string. 1597 **/ 1598 static ssize_t 1599 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 1600 char *buf) 1601 { 1602 struct Scsi_Host *shost = class_to_shost(dev); 1603 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1604 struct lpfc_hba *phba = vport->phba; 1605 uint32_t cnt, acnt; 1606 1607 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 1608 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1609 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1610 } 1611 1612 /** 1613 * lpfc_max_vpi_show - Return maximum vpi 1614 * @dev: class device that is converted into a Scsi_host. 1615 * @attr: device attribute, not used. 1616 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 1617 * 1618 * Description: 1619 * Calls lpfc_get_hba_info() asking for just the mvpi count. 1620 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1621 * to "Unknown" and the buffer length is returned, therefore the caller 1622 * must check for "Unknown" in the buffer to detect a failure. 1623 * 1624 * Returns: size of formatted string. 1625 **/ 1626 static ssize_t 1627 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 1628 char *buf) 1629 { 1630 struct Scsi_Host *shost = class_to_shost(dev); 1631 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1632 struct lpfc_hba *phba = vport->phba; 1633 uint32_t cnt; 1634 1635 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 1636 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1637 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1638 } 1639 1640 /** 1641 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 1642 * @dev: class device that is converted into a Scsi_host. 1643 * @attr: device attribute, not used. 1644 * @buf: on return contains the used vpi count in decimal or "Unknown". 1645 * 1646 * Description: 1647 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 1648 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1649 * to "Unknown" and the buffer length is returned, therefore the caller 1650 * must check for "Unknown" in the buffer to detect a failure. 1651 * 1652 * Returns: size of formatted string. 1653 **/ 1654 static ssize_t 1655 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 1656 char *buf) 1657 { 1658 struct Scsi_Host *shost = class_to_shost(dev); 1659 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1660 struct lpfc_hba *phba = vport->phba; 1661 uint32_t cnt, acnt; 1662 1663 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 1664 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1665 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1666 } 1667 1668 /** 1669 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 1670 * @dev: class device that is converted into a Scsi_host. 1671 * @attr: device attribute, not used. 1672 * @buf: text that must be interpreted to determine if npiv is supported. 1673 * 1674 * Description: 1675 * Buffer will contain text indicating npiv is not suppoerted on the port, 1676 * the port is an NPIV physical port, or it is an npiv virtual port with 1677 * the id of the vport. 1678 * 1679 * Returns: size of formatted string. 1680 **/ 1681 static ssize_t 1682 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 1683 char *buf) 1684 { 1685 struct Scsi_Host *shost = class_to_shost(dev); 1686 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1687 struct lpfc_hba *phba = vport->phba; 1688 1689 if (!(phba->max_vpi)) 1690 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 1691 if (vport->port_type == LPFC_PHYSICAL_PORT) 1692 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 1693 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 1694 } 1695 1696 /** 1697 * lpfc_poll_show - Return text about poll support for the adapter 1698 * @dev: class device that is converted into a Scsi_host. 1699 * @attr: device attribute, not used. 1700 * @buf: on return contains the cfg_poll in hex. 1701 * 1702 * Notes: 1703 * cfg_poll should be a lpfc_polling_flags type. 1704 * 1705 * Returns: size of formatted string. 1706 **/ 1707 static ssize_t 1708 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 1709 char *buf) 1710 { 1711 struct Scsi_Host *shost = class_to_shost(dev); 1712 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1713 struct lpfc_hba *phba = vport->phba; 1714 1715 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 1716 } 1717 1718 /** 1719 * lpfc_poll_store - Set the value of cfg_poll for the adapter 1720 * @dev: class device that is converted into a Scsi_host. 1721 * @attr: device attribute, not used. 1722 * @buf: one or more lpfc_polling_flags values. 1723 * @count: not used. 1724 * 1725 * Notes: 1726 * buf contents converted to integer and checked for a valid value. 1727 * 1728 * Returns: 1729 * -EINVAL if the buffer connot be converted or is out of range 1730 * length of the buf on success 1731 **/ 1732 static ssize_t 1733 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 1734 const char *buf, size_t count) 1735 { 1736 struct Scsi_Host *shost = class_to_shost(dev); 1737 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1738 struct lpfc_hba *phba = vport->phba; 1739 uint32_t creg_val; 1740 uint32_t old_val; 1741 int val=0; 1742 1743 if (!isdigit(buf[0])) 1744 return -EINVAL; 1745 1746 if (sscanf(buf, "%i", &val) != 1) 1747 return -EINVAL; 1748 1749 if ((val & 0x3) != val) 1750 return -EINVAL; 1751 1752 if (phba->sli_rev == LPFC_SLI_REV4) 1753 val = 0; 1754 1755 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1756 "3051 lpfc_poll changed from %d to %d\n", 1757 phba->cfg_poll, val); 1758 1759 spin_lock_irq(&phba->hbalock); 1760 1761 old_val = phba->cfg_poll; 1762 1763 if (val & ENABLE_FCP_RING_POLLING) { 1764 if ((val & DISABLE_FCP_RING_INT) && 1765 !(old_val & DISABLE_FCP_RING_INT)) { 1766 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 1767 spin_unlock_irq(&phba->hbalock); 1768 return -EINVAL; 1769 } 1770 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 1771 writel(creg_val, phba->HCregaddr); 1772 readl(phba->HCregaddr); /* flush */ 1773 1774 lpfc_poll_start_timer(phba); 1775 } 1776 } else if (val != 0x0) { 1777 spin_unlock_irq(&phba->hbalock); 1778 return -EINVAL; 1779 } 1780 1781 if (!(val & DISABLE_FCP_RING_INT) && 1782 (old_val & DISABLE_FCP_RING_INT)) 1783 { 1784 spin_unlock_irq(&phba->hbalock); 1785 del_timer(&phba->fcp_poll_timer); 1786 spin_lock_irq(&phba->hbalock); 1787 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 1788 spin_unlock_irq(&phba->hbalock); 1789 return -EINVAL; 1790 } 1791 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 1792 writel(creg_val, phba->HCregaddr); 1793 readl(phba->HCregaddr); /* flush */ 1794 } 1795 1796 phba->cfg_poll = val; 1797 1798 spin_unlock_irq(&phba->hbalock); 1799 1800 return strlen(buf); 1801 } 1802 1803 /** 1804 * lpfc_fips_level_show - Return the current FIPS level for the HBA 1805 * @dev: class unused variable. 1806 * @attr: device attribute, not used. 1807 * @buf: on return contains the module description text. 1808 * 1809 * Returns: size of formatted string. 1810 **/ 1811 static ssize_t 1812 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 1813 char *buf) 1814 { 1815 struct Scsi_Host *shost = class_to_shost(dev); 1816 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1817 struct lpfc_hba *phba = vport->phba; 1818 1819 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 1820 } 1821 1822 /** 1823 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 1824 * @dev: class unused variable. 1825 * @attr: device attribute, not used. 1826 * @buf: on return contains the module description text. 1827 * 1828 * Returns: size of formatted string. 1829 **/ 1830 static ssize_t 1831 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 1832 char *buf) 1833 { 1834 struct Scsi_Host *shost = class_to_shost(dev); 1835 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1836 struct lpfc_hba *phba = vport->phba; 1837 1838 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 1839 } 1840 1841 /** 1842 * lpfc_dss_show - Return the current state of dss and the configured state 1843 * @dev: class converted to a Scsi_host structure. 1844 * @attr: device attribute, not used. 1845 * @buf: on return contains the formatted text. 1846 * 1847 * Returns: size of formatted string. 1848 **/ 1849 static ssize_t 1850 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 1851 char *buf) 1852 { 1853 struct Scsi_Host *shost = class_to_shost(dev); 1854 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1855 struct lpfc_hba *phba = vport->phba; 1856 1857 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 1858 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 1859 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 1860 "" : "Not "); 1861 } 1862 1863 /** 1864 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 1865 * @dev: class converted to a Scsi_host structure. 1866 * @attr: device attribute, not used. 1867 * @buf: on return contains the formatted support level. 1868 * 1869 * Description: 1870 * Returns the maximum number of virtual functions a physical function can 1871 * support, 0 will be returned if called on virtual function. 1872 * 1873 * Returns: size of formatted string. 1874 **/ 1875 static ssize_t 1876 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 1877 struct device_attribute *attr, 1878 char *buf) 1879 { 1880 struct Scsi_Host *shost = class_to_shost(dev); 1881 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1882 struct lpfc_hba *phba = vport->phba; 1883 uint16_t max_nr_virtfn; 1884 1885 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 1886 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 1887 } 1888 1889 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 1890 { 1891 return val >= min && val <= max; 1892 } 1893 1894 /** 1895 * lpfc_param_show - Return a cfg attribute value in decimal 1896 * 1897 * Description: 1898 * Macro that given an attr e.g. hba_queue_depth expands 1899 * into a function with the name lpfc_hba_queue_depth_show. 1900 * 1901 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 1902 * @dev: class device that is converted into a Scsi_host. 1903 * @attr: device attribute, not used. 1904 * @buf: on return contains the attribute value in decimal. 1905 * 1906 * Returns: size of formatted string. 1907 **/ 1908 #define lpfc_param_show(attr) \ 1909 static ssize_t \ 1910 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1911 char *buf) \ 1912 { \ 1913 struct Scsi_Host *shost = class_to_shost(dev);\ 1914 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 1915 struct lpfc_hba *phba = vport->phba;\ 1916 return snprintf(buf, PAGE_SIZE, "%d\n",\ 1917 phba->cfg_##attr);\ 1918 } 1919 1920 /** 1921 * lpfc_param_hex_show - Return a cfg attribute value in hex 1922 * 1923 * Description: 1924 * Macro that given an attr e.g. hba_queue_depth expands 1925 * into a function with the name lpfc_hba_queue_depth_show 1926 * 1927 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 1928 * @dev: class device that is converted into a Scsi_host. 1929 * @attr: device attribute, not used. 1930 * @buf: on return contains the attribute value in hexadecimal. 1931 * 1932 * Returns: size of formatted string. 1933 **/ 1934 #define lpfc_param_hex_show(attr) \ 1935 static ssize_t \ 1936 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1937 char *buf) \ 1938 { \ 1939 struct Scsi_Host *shost = class_to_shost(dev);\ 1940 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 1941 struct lpfc_hba *phba = vport->phba;\ 1942 uint val = 0;\ 1943 val = phba->cfg_##attr;\ 1944 return snprintf(buf, PAGE_SIZE, "%#x\n",\ 1945 phba->cfg_##attr);\ 1946 } 1947 1948 /** 1949 * lpfc_param_init - Initializes a cfg attribute 1950 * 1951 * Description: 1952 * Macro that given an attr e.g. hba_queue_depth expands 1953 * into a function with the name lpfc_hba_queue_depth_init. The macro also 1954 * takes a default argument, a minimum and maximum argument. 1955 * 1956 * lpfc_##attr##_init: Initializes an attribute. 1957 * @phba: pointer the the adapter structure. 1958 * @val: integer attribute value. 1959 * 1960 * Validates the min and max values then sets the adapter config field 1961 * accordingly, or uses the default if out of range and prints an error message. 1962 * 1963 * Returns: 1964 * zero on success 1965 * -EINVAL if default used 1966 **/ 1967 #define lpfc_param_init(attr, default, minval, maxval) \ 1968 static int \ 1969 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 1970 { \ 1971 if (lpfc_rangecheck(val, minval, maxval)) {\ 1972 phba->cfg_##attr = val;\ 1973 return 0;\ 1974 }\ 1975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 1976 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 1977 "allowed range is ["#minval", "#maxval"]\n", val); \ 1978 phba->cfg_##attr = default;\ 1979 return -EINVAL;\ 1980 } 1981 1982 /** 1983 * lpfc_param_set - Set a cfg attribute value 1984 * 1985 * Description: 1986 * Macro that given an attr e.g. hba_queue_depth expands 1987 * into a function with the name lpfc_hba_queue_depth_set 1988 * 1989 * lpfc_##attr##_set: Sets an attribute value. 1990 * @phba: pointer the the adapter structure. 1991 * @val: integer attribute value. 1992 * 1993 * Description: 1994 * Validates the min and max values then sets the 1995 * adapter config field if in the valid range. prints error message 1996 * and does not set the parameter if invalid. 1997 * 1998 * Returns: 1999 * zero on success 2000 * -EINVAL if val is invalid 2001 **/ 2002 #define lpfc_param_set(attr, default, minval, maxval) \ 2003 static int \ 2004 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2005 { \ 2006 if (lpfc_rangecheck(val, minval, maxval)) {\ 2007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2008 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2009 phba->cfg_##attr, val); \ 2010 phba->cfg_##attr = val;\ 2011 return 0;\ 2012 }\ 2013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2014 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2015 "allowed range is ["#minval", "#maxval"]\n", val); \ 2016 return -EINVAL;\ 2017 } 2018 2019 /** 2020 * lpfc_param_store - Set a vport attribute value 2021 * 2022 * Description: 2023 * Macro that given an attr e.g. hba_queue_depth expands 2024 * into a function with the name lpfc_hba_queue_depth_store. 2025 * 2026 * lpfc_##attr##_store: Set an sttribute value. 2027 * @dev: class device that is converted into a Scsi_host. 2028 * @attr: device attribute, not used. 2029 * @buf: contains the attribute value in ascii. 2030 * @count: not used. 2031 * 2032 * Description: 2033 * Convert the ascii text number to an integer, then 2034 * use the lpfc_##attr##_set function to set the value. 2035 * 2036 * Returns: 2037 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2038 * length of buffer upon success. 2039 **/ 2040 #define lpfc_param_store(attr) \ 2041 static ssize_t \ 2042 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2043 const char *buf, size_t count) \ 2044 { \ 2045 struct Scsi_Host *shost = class_to_shost(dev);\ 2046 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2047 struct lpfc_hba *phba = vport->phba;\ 2048 uint val = 0;\ 2049 if (!isdigit(buf[0]))\ 2050 return -EINVAL;\ 2051 if (sscanf(buf, "%i", &val) != 1)\ 2052 return -EINVAL;\ 2053 if (lpfc_##attr##_set(phba, val) == 0) \ 2054 return strlen(buf);\ 2055 else \ 2056 return -EINVAL;\ 2057 } 2058 2059 /** 2060 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2061 * 2062 * Description: 2063 * Macro that given an attr e.g. hba_queue_depth expands 2064 * into a function with the name lpfc_hba_queue_depth_show 2065 * 2066 * lpfc_##attr##_show: prints the attribute value in decimal. 2067 * @dev: class device that is converted into a Scsi_host. 2068 * @attr: device attribute, not used. 2069 * @buf: on return contains the attribute value in decimal. 2070 * 2071 * Returns: length of formatted string. 2072 **/ 2073 #define lpfc_vport_param_show(attr) \ 2074 static ssize_t \ 2075 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2076 char *buf) \ 2077 { \ 2078 struct Scsi_Host *shost = class_to_shost(dev);\ 2079 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2080 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2081 } 2082 2083 /** 2084 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2085 * 2086 * Description: 2087 * Macro that given an attr e.g. 2088 * hba_queue_depth expands into a function with the name 2089 * lpfc_hba_queue_depth_show 2090 * 2091 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2092 * @dev: class device that is converted into a Scsi_host. 2093 * @attr: device attribute, not used. 2094 * @buf: on return contains the attribute value in hexadecimal. 2095 * 2096 * Returns: length of formatted string. 2097 **/ 2098 #define lpfc_vport_param_hex_show(attr) \ 2099 static ssize_t \ 2100 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2101 char *buf) \ 2102 { \ 2103 struct Scsi_Host *shost = class_to_shost(dev);\ 2104 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2105 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2106 } 2107 2108 /** 2109 * lpfc_vport_param_init - Initialize a vport cfg attribute 2110 * 2111 * Description: 2112 * Macro that given an attr e.g. hba_queue_depth expands 2113 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2114 * takes a default argument, a minimum and maximum argument. 2115 * 2116 * lpfc_##attr##_init: validates the min and max values then sets the 2117 * adapter config field accordingly, or uses the default if out of range 2118 * and prints an error message. 2119 * @phba: pointer the the adapter structure. 2120 * @val: integer attribute value. 2121 * 2122 * Returns: 2123 * zero on success 2124 * -EINVAL if default used 2125 **/ 2126 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2127 static int \ 2128 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2129 { \ 2130 if (lpfc_rangecheck(val, minval, maxval)) {\ 2131 vport->cfg_##attr = val;\ 2132 return 0;\ 2133 }\ 2134 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2135 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2136 "allowed range is ["#minval", "#maxval"]\n", val); \ 2137 vport->cfg_##attr = default;\ 2138 return -EINVAL;\ 2139 } 2140 2141 /** 2142 * lpfc_vport_param_set - Set a vport cfg attribute 2143 * 2144 * Description: 2145 * Macro that given an attr e.g. hba_queue_depth expands 2146 * into a function with the name lpfc_hba_queue_depth_set 2147 * 2148 * lpfc_##attr##_set: validates the min and max values then sets the 2149 * adapter config field if in the valid range. prints error message 2150 * and does not set the parameter if invalid. 2151 * @phba: pointer the the adapter structure. 2152 * @val: integer attribute value. 2153 * 2154 * Returns: 2155 * zero on success 2156 * -EINVAL if val is invalid 2157 **/ 2158 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2159 static int \ 2160 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2161 { \ 2162 if (lpfc_rangecheck(val, minval, maxval)) {\ 2163 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2164 "3053 lpfc_" #attr \ 2165 " changed from %d (x%x) to %d (x%x)\n", \ 2166 vport->cfg_##attr, vport->cfg_##attr, \ 2167 val, val); \ 2168 vport->cfg_##attr = val;\ 2169 return 0;\ 2170 }\ 2171 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2172 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2173 "allowed range is ["#minval", "#maxval"]\n", val); \ 2174 return -EINVAL;\ 2175 } 2176 2177 /** 2178 * lpfc_vport_param_store - Set a vport attribute 2179 * 2180 * Description: 2181 * Macro that given an attr e.g. hba_queue_depth 2182 * expands into a function with the name lpfc_hba_queue_depth_store 2183 * 2184 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2185 * use the lpfc_##attr##_set function to set the value. 2186 * @cdev: class device that is converted into a Scsi_host. 2187 * @buf: contains the attribute value in decimal. 2188 * @count: not used. 2189 * 2190 * Returns: 2191 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2192 * length of buffer upon success. 2193 **/ 2194 #define lpfc_vport_param_store(attr) \ 2195 static ssize_t \ 2196 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2197 const char *buf, size_t count) \ 2198 { \ 2199 struct Scsi_Host *shost = class_to_shost(dev);\ 2200 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2201 uint val = 0;\ 2202 if (!isdigit(buf[0]))\ 2203 return -EINVAL;\ 2204 if (sscanf(buf, "%i", &val) != 1)\ 2205 return -EINVAL;\ 2206 if (lpfc_##attr##_set(vport, val) == 0) \ 2207 return strlen(buf);\ 2208 else \ 2209 return -EINVAL;\ 2210 } 2211 2212 2213 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2214 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2215 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2216 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2217 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2218 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2219 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2220 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2221 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2222 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2223 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2224 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2225 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2226 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2227 lpfc_link_state_store); 2228 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2229 lpfc_option_rom_version_show, NULL); 2230 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2231 lpfc_num_discovered_ports_show, NULL); 2232 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2233 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2234 static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); 2235 static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL); 2236 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2237 lpfc_board_mode_show, lpfc_board_mode_store); 2238 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2239 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2240 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2241 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2242 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2243 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2244 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2245 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2246 static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL); 2247 static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL); 2248 static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL); 2249 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL); 2250 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO, 2251 lpfc_sriov_hw_max_virtfn_show, NULL); 2252 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2253 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2254 NULL); 2255 2256 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2257 #define WWN_SZ 8 2258 /** 2259 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2260 * @buf: WWN string. 2261 * @cnt: Length of string. 2262 * @wwn: Array to receive converted wwn value. 2263 * 2264 * Returns: 2265 * -EINVAL if the buffer does not contain a valid wwn 2266 * 0 success 2267 **/ 2268 static size_t 2269 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2270 { 2271 unsigned int i, j; 2272 2273 /* Count may include a LF at end of string */ 2274 if (buf[cnt-1] == '\n') 2275 cnt--; 2276 2277 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2278 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2279 return -EINVAL; 2280 2281 memset(wwn, 0, WWN_SZ); 2282 2283 /* Validate and store the new name */ 2284 for (i = 0, j = 0; i < 16; i++) { 2285 if ((*buf >= 'a') && (*buf <= 'f')) 2286 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2287 else if ((*buf >= 'A') && (*buf <= 'F')) 2288 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2289 else if ((*buf >= '0') && (*buf <= '9')) 2290 j = ((j << 4) | (*buf++ - '0')); 2291 else 2292 return -EINVAL; 2293 if (i % 2) { 2294 wwn[i/2] = j & 0xff; 2295 j = 0; 2296 } 2297 } 2298 return 0; 2299 } 2300 /** 2301 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2302 * @dev: class device that is converted into a Scsi_host. 2303 * @attr: device attribute, not used. 2304 * @buf: containing the string lpfc_soft_wwn_key. 2305 * @count: must be size of lpfc_soft_wwn_key. 2306 * 2307 * Returns: 2308 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2309 * length of buf indicates success 2310 **/ 2311 static ssize_t 2312 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2313 const char *buf, size_t count) 2314 { 2315 struct Scsi_Host *shost = class_to_shost(dev); 2316 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2317 struct lpfc_hba *phba = vport->phba; 2318 unsigned int cnt = count; 2319 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2320 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2321 2322 /* 2323 * We're doing a simple sanity check for soft_wwpn setting. 2324 * We require that the user write a specific key to enable 2325 * the soft_wwpn attribute to be settable. Once the attribute 2326 * is written, the enable key resets. If further updates are 2327 * desired, the key must be written again to re-enable the 2328 * attribute. 2329 * 2330 * The "key" is not secret - it is a hardcoded string shown 2331 * here. The intent is to protect against the random user or 2332 * application that is just writing attributes. 2333 */ 2334 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2336 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2337 " be enabled: fawwpn is enabled\n"); 2338 return -EINVAL; 2339 } 2340 2341 /* count may include a LF at end of string */ 2342 if (buf[cnt-1] == '\n') 2343 cnt--; 2344 2345 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2346 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2347 return -EINVAL; 2348 2349 phba->soft_wwn_enable = 1; 2350 2351 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2352 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2353 phba->brd_no); 2354 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2355 " The soft_wwpn feature is not supported by Broadcom."); 2356 2357 return count; 2358 } 2359 static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, 2360 lpfc_soft_wwn_enable_store); 2361 2362 /** 2363 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2364 * @dev: class device that is converted into a Scsi_host. 2365 * @attr: device attribute, not used. 2366 * @buf: on return contains the wwpn in hexadecimal. 2367 * 2368 * Returns: size of formatted string. 2369 **/ 2370 static ssize_t 2371 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2372 char *buf) 2373 { 2374 struct Scsi_Host *shost = class_to_shost(dev); 2375 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2376 struct lpfc_hba *phba = vport->phba; 2377 2378 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2379 (unsigned long long)phba->cfg_soft_wwpn); 2380 } 2381 2382 /** 2383 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2384 * @dev class device that is converted into a Scsi_host. 2385 * @attr: device attribute, not used. 2386 * @buf: contains the wwpn in hexadecimal. 2387 * @count: number of wwpn bytes in buf 2388 * 2389 * Returns: 2390 * -EACCES hba reset not enabled, adapter over temp 2391 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2392 * -EIO error taking adapter offline or online 2393 * value of count on success 2394 **/ 2395 static ssize_t 2396 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2397 const char *buf, size_t count) 2398 { 2399 struct Scsi_Host *shost = class_to_shost(dev); 2400 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2401 struct lpfc_hba *phba = vport->phba; 2402 struct completion online_compl; 2403 int stat1 = 0, stat2 = 0; 2404 unsigned int cnt = count; 2405 u8 wwpn[WWN_SZ]; 2406 int rc; 2407 2408 if (!phba->cfg_enable_hba_reset) 2409 return -EACCES; 2410 spin_lock_irq(&phba->hbalock); 2411 if (phba->over_temp_state == HBA_OVER_TEMP) { 2412 spin_unlock_irq(&phba->hbalock); 2413 return -EACCES; 2414 } 2415 spin_unlock_irq(&phba->hbalock); 2416 /* count may include a LF at end of string */ 2417 if (buf[cnt-1] == '\n') 2418 cnt--; 2419 2420 if (!phba->soft_wwn_enable) 2421 return -EINVAL; 2422 2423 /* lock setting wwpn, wwnn down */ 2424 phba->soft_wwn_enable = 0; 2425 2426 rc = lpfc_wwn_set(buf, cnt, wwpn); 2427 if (rc) { 2428 /* not able to set wwpn, unlock it */ 2429 phba->soft_wwn_enable = 1; 2430 return rc; 2431 } 2432 2433 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2434 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2435 if (phba->cfg_soft_wwnn) 2436 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2437 2438 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2439 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2440 2441 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2442 if (stat1) 2443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2444 "0463 lpfc_soft_wwpn attribute set failed to " 2445 "reinit adapter - %d\n", stat1); 2446 init_completion(&online_compl); 2447 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2448 LPFC_EVT_ONLINE); 2449 if (rc == 0) 2450 return -ENOMEM; 2451 2452 wait_for_completion(&online_compl); 2453 if (stat2) 2454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2455 "0464 lpfc_soft_wwpn attribute set failed to " 2456 "reinit adapter - %d\n", stat2); 2457 return (stat1 || stat2) ? -EIO : count; 2458 } 2459 static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR, 2460 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); 2461 2462 /** 2463 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2464 * @dev: class device that is converted into a Scsi_host. 2465 * @attr: device attribute, not used. 2466 * @buf: on return contains the wwnn in hexadecimal. 2467 * 2468 * Returns: size of formatted string. 2469 **/ 2470 static ssize_t 2471 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2472 char *buf) 2473 { 2474 struct Scsi_Host *shost = class_to_shost(dev); 2475 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2476 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2477 (unsigned long long)phba->cfg_soft_wwnn); 2478 } 2479 2480 /** 2481 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2482 * @cdev: class device that is converted into a Scsi_host. 2483 * @buf: contains the ww node name in hexadecimal. 2484 * @count: number of wwnn bytes in buf. 2485 * 2486 * Returns: 2487 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2488 * value of count on success 2489 **/ 2490 static ssize_t 2491 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2492 const char *buf, size_t count) 2493 { 2494 struct Scsi_Host *shost = class_to_shost(dev); 2495 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2496 unsigned int cnt = count; 2497 u8 wwnn[WWN_SZ]; 2498 int rc; 2499 2500 /* count may include a LF at end of string */ 2501 if (buf[cnt-1] == '\n') 2502 cnt--; 2503 2504 if (!phba->soft_wwn_enable) 2505 return -EINVAL; 2506 2507 rc = lpfc_wwn_set(buf, cnt, wwnn); 2508 if (rc) { 2509 /* Allow wwnn to be set many times, as long as the enable 2510 * is set. However, once the wwpn is set, everything locks. 2511 */ 2512 return rc; 2513 } 2514 2515 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2516 2517 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2518 "lpfc%d: soft_wwnn set. Value will take effect upon " 2519 "setting of the soft_wwpn\n", phba->brd_no); 2520 2521 return count; 2522 } 2523 static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR, 2524 lpfc_soft_wwnn_show, lpfc_soft_wwnn_store); 2525 2526 /** 2527 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2528 * Optimized Access Storage (OAS) operations. 2529 * @dev: class device that is converted into a Scsi_host. 2530 * @attr: device attribute, not used. 2531 * @buf: buffer for passing information. 2532 * 2533 * Returns: 2534 * value of count 2535 **/ 2536 static ssize_t 2537 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2538 char *buf) 2539 { 2540 struct Scsi_Host *shost = class_to_shost(dev); 2541 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2542 2543 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2544 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2545 } 2546 2547 /** 2548 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2549 * Optimized Access Storage (OAS) operations. 2550 * @dev: class device that is converted into a Scsi_host. 2551 * @attr: device attribute, not used. 2552 * @buf: buffer for passing information. 2553 * @count: Size of the data buffer. 2554 * 2555 * Returns: 2556 * -EINVAL count is invalid, invalid wwpn byte invalid 2557 * -EPERM oas is not supported by hba 2558 * value of count on success 2559 **/ 2560 static ssize_t 2561 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2562 const char *buf, size_t count) 2563 { 2564 struct Scsi_Host *shost = class_to_shost(dev); 2565 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2566 unsigned int cnt = count; 2567 uint8_t wwpn[WWN_SZ]; 2568 int rc; 2569 2570 if (!phba->cfg_fof) 2571 return -EPERM; 2572 2573 /* count may include a LF at end of string */ 2574 if (buf[cnt-1] == '\n') 2575 cnt--; 2576 2577 rc = lpfc_wwn_set(buf, cnt, wwpn); 2578 if (rc) 2579 return rc; 2580 2581 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2582 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2583 if (wwn_to_u64(wwpn) == 0) 2584 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2585 else 2586 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2587 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2588 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2589 return count; 2590 } 2591 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2592 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2593 2594 /** 2595 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2596 * Optimized Access Storage (OAS) operations. 2597 * @dev: class device that is converted into a Scsi_host. 2598 * @attr: device attribute, not used. 2599 * @buf: buffer for passing information. 2600 * 2601 * Returns: 2602 * value of count 2603 **/ 2604 static ssize_t 2605 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2606 char *buf) 2607 { 2608 struct Scsi_Host *shost = class_to_shost(dev); 2609 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2610 2611 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2612 } 2613 2614 /** 2615 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 2616 * Optimized Access Storage (OAS) operations. 2617 * @dev: class device that is converted into a Scsi_host. 2618 * @attr: device attribute, not used. 2619 * @buf: buffer for passing information. 2620 * @count: Size of the data buffer. 2621 * 2622 * Returns: 2623 * -EINVAL count is invalid, invalid wwpn byte invalid 2624 * -EPERM oas is not supported by hba 2625 * value of count on success 2626 **/ 2627 static ssize_t 2628 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 2629 const char *buf, size_t count) 2630 { 2631 struct Scsi_Host *shost = class_to_shost(dev); 2632 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2633 unsigned int cnt = count; 2634 unsigned long val; 2635 int ret; 2636 2637 if (!phba->cfg_fof) 2638 return -EPERM; 2639 2640 /* count may include a LF at end of string */ 2641 if (buf[cnt-1] == '\n') 2642 cnt--; 2643 2644 ret = kstrtoul(buf, 0, &val); 2645 if (ret || (val > 0x7f)) 2646 return -EINVAL; 2647 2648 if (val) 2649 phba->cfg_oas_priority = (uint8_t)val; 2650 else 2651 phba->cfg_oas_priority = phba->cfg_XLanePriority; 2652 return count; 2653 } 2654 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 2655 lpfc_oas_priority_show, lpfc_oas_priority_store); 2656 2657 /** 2658 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 2659 * for Optimized Access Storage (OAS) operations. 2660 * @dev: class device that is converted into a Scsi_host. 2661 * @attr: device attribute, not used. 2662 * @buf: buffer for passing information. 2663 * 2664 * Returns: 2665 * value of count on success 2666 **/ 2667 static ssize_t 2668 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 2669 char *buf) 2670 { 2671 struct Scsi_Host *shost = class_to_shost(dev); 2672 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2673 2674 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2675 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 2676 } 2677 2678 /** 2679 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 2680 * for Optimized Access Storage (OAS) operations. 2681 * @dev: class device that is converted into a Scsi_host. 2682 * @attr: device attribute, not used. 2683 * @buf: buffer for passing information. 2684 * @count: Size of the data buffer. 2685 * 2686 * Returns: 2687 * -EINVAL count is invalid, invalid wwpn byte invalid 2688 * -EPERM oas is not supported by hba 2689 * value of count on success 2690 **/ 2691 static ssize_t 2692 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 2693 const char *buf, size_t count) 2694 { 2695 struct Scsi_Host *shost = class_to_shost(dev); 2696 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2697 unsigned int cnt = count; 2698 uint8_t wwpn[WWN_SZ]; 2699 int rc; 2700 2701 if (!phba->cfg_fof) 2702 return -EPERM; 2703 2704 /* count may include a LF at end of string */ 2705 if (buf[cnt-1] == '\n') 2706 cnt--; 2707 2708 rc = lpfc_wwn_set(buf, cnt, wwpn); 2709 if (rc) 2710 return rc; 2711 2712 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2713 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2714 if (wwn_to_u64(wwpn) == 0) 2715 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 2716 else 2717 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 2718 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2719 if (phba->cfg_oas_priority == 0) 2720 phba->cfg_oas_priority = phba->cfg_XLanePriority; 2721 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2722 return count; 2723 } 2724 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 2725 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 2726 2727 /** 2728 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 2729 * of whether luns will be enabled or disabled 2730 * for Optimized Access Storage (OAS) operations. 2731 * @dev: class device that is converted into a Scsi_host. 2732 * @attr: device attribute, not used. 2733 * @buf: buffer for passing information. 2734 * 2735 * Returns: 2736 * size of formatted string. 2737 **/ 2738 static ssize_t 2739 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 2740 char *buf) 2741 { 2742 struct Scsi_Host *shost = class_to_shost(dev); 2743 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2744 2745 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 2746 } 2747 2748 /** 2749 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 2750 * of whether luns will be enabled or disabled 2751 * for Optimized Access Storage (OAS) operations. 2752 * @dev: class device that is converted into a Scsi_host. 2753 * @attr: device attribute, not used. 2754 * @buf: buffer for passing information. 2755 * @count: Size of the data buffer. 2756 * 2757 * Returns: 2758 * -EINVAL count is invalid, invalid wwpn byte invalid 2759 * -EPERM oas is not supported by hba 2760 * value of count on success 2761 **/ 2762 static ssize_t 2763 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 2764 const char *buf, size_t count) 2765 { 2766 struct Scsi_Host *shost = class_to_shost(dev); 2767 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2768 int val = 0; 2769 2770 if (!phba->cfg_fof) 2771 return -EPERM; 2772 2773 if (!isdigit(buf[0])) 2774 return -EINVAL; 2775 2776 if (sscanf(buf, "%i", &val) != 1) 2777 return -EINVAL; 2778 2779 if ((val != 0) && (val != 1)) 2780 return -EINVAL; 2781 2782 phba->cfg_oas_lun_state = val; 2783 return strlen(buf); 2784 } 2785 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 2786 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 2787 2788 /** 2789 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 2790 * Storage (OAS) lun returned by the 2791 * lpfc_oas_lun_show function. 2792 * @dev: class device that is converted into a Scsi_host. 2793 * @attr: device attribute, not used. 2794 * @buf: buffer for passing information. 2795 * 2796 * Returns: 2797 * size of formatted string. 2798 **/ 2799 static ssize_t 2800 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 2801 char *buf) 2802 { 2803 struct Scsi_Host *shost = class_to_shost(dev); 2804 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2805 2806 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 2807 return -EFAULT; 2808 2809 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 2810 } 2811 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 2812 lpfc_oas_lun_status_show, NULL); 2813 2814 2815 /** 2816 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 2817 * (OAS) operations. 2818 * @phba: lpfc_hba pointer. 2819 * @ndlp: pointer to fcp target node. 2820 * @lun: the fc lun for setting oas state. 2821 * @oas_state: the oas state to be set to the lun. 2822 * 2823 * Returns: 2824 * SUCCESS : 0 2825 * -EPERM OAS is not enabled or not supported by this port. 2826 * 2827 */ 2828 static size_t 2829 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2830 uint8_t tgt_wwpn[], uint64_t lun, 2831 uint32_t oas_state, uint8_t pri) 2832 { 2833 2834 int rc = 0; 2835 2836 if (!phba->cfg_fof) 2837 return -EPERM; 2838 2839 if (oas_state) { 2840 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 2841 (struct lpfc_name *)tgt_wwpn, 2842 lun, pri)) 2843 rc = -ENOMEM; 2844 } else { 2845 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 2846 (struct lpfc_name *)tgt_wwpn, lun, pri); 2847 } 2848 return rc; 2849 2850 } 2851 2852 /** 2853 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 2854 * Access Storage (OAS) operations. 2855 * @phba: lpfc_hba pointer. 2856 * @vpt_wwpn: wwpn of the vport associated with the returned lun 2857 * @tgt_wwpn: wwpn of the target associated with the returned lun 2858 * @lun_status: status of the lun returned lun 2859 * 2860 * Returns the first or next lun enabled for OAS operations for the vport/target 2861 * specified. If a lun is found, its vport wwpn, target wwpn and status is 2862 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 2863 * 2864 * Return: 2865 * lun that is OAS enabled for the vport/target 2866 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 2867 */ 2868 static uint64_t 2869 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2870 uint8_t tgt_wwpn[], uint32_t *lun_status, 2871 uint32_t *lun_pri) 2872 { 2873 uint64_t found_lun; 2874 2875 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 2876 return NOT_OAS_ENABLED_LUN; 2877 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 2878 phba->sli4_hba.oas_next_vpt_wwpn, 2879 (struct lpfc_name *) 2880 phba->sli4_hba.oas_next_tgt_wwpn, 2881 &phba->sli4_hba.oas_next_lun, 2882 (struct lpfc_name *)vpt_wwpn, 2883 (struct lpfc_name *)tgt_wwpn, 2884 &found_lun, lun_status, lun_pri)) 2885 return found_lun; 2886 else 2887 return NOT_OAS_ENABLED_LUN; 2888 } 2889 2890 /** 2891 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 2892 * @phba: lpfc_hba pointer. 2893 * @vpt_wwpn: vport wwpn by reference. 2894 * @tgt_wwpn: target wwpn by reference. 2895 * @lun: the fc lun for setting oas state. 2896 * @oas_state: the oas state to be set to the oas_lun. 2897 * 2898 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 2899 * a lun for OAS operations. 2900 * 2901 * Return: 2902 * SUCCESS: 0 2903 * -ENOMEM: failed to enable an lun for OAS operations 2904 * -EPERM: OAS is not enabled 2905 */ 2906 static ssize_t 2907 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 2908 uint8_t tgt_wwpn[], uint64_t lun, 2909 uint32_t oas_state, uint8_t pri) 2910 { 2911 2912 int rc; 2913 2914 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 2915 oas_state, pri); 2916 return rc; 2917 } 2918 2919 /** 2920 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 2921 * @dev: class device that is converted into a Scsi_host. 2922 * @attr: device attribute, not used. 2923 * @buf: buffer for passing information. 2924 * 2925 * This routine returns a lun enabled for OAS each time the function 2926 * is called. 2927 * 2928 * Returns: 2929 * SUCCESS: size of formatted string. 2930 * -EFAULT: target or vport wwpn was not set properly. 2931 * -EPERM: oas is not enabled. 2932 **/ 2933 static ssize_t 2934 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 2935 char *buf) 2936 { 2937 struct Scsi_Host *shost = class_to_shost(dev); 2938 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2939 2940 uint64_t oas_lun; 2941 int len = 0; 2942 2943 if (!phba->cfg_fof) 2944 return -EPERM; 2945 2946 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 2947 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 2948 return -EFAULT; 2949 2950 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 2951 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 2952 return -EFAULT; 2953 2954 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 2955 phba->cfg_oas_tgt_wwpn, 2956 &phba->cfg_oas_lun_status, 2957 &phba->cfg_oas_priority); 2958 if (oas_lun != NOT_OAS_ENABLED_LUN) 2959 phba->cfg_oas_flags |= OAS_LUN_VALID; 2960 2961 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 2962 2963 return len; 2964 } 2965 2966 /** 2967 * lpfc_oas_lun_store - Sets the OAS state for lun 2968 * @dev: class device that is converted into a Scsi_host. 2969 * @attr: device attribute, not used. 2970 * @buf: buffer for passing information. 2971 * 2972 * This function sets the OAS state for lun. Before this function is called, 2973 * the vport wwpn, target wwpn, and oas state need to be set. 2974 * 2975 * Returns: 2976 * SUCCESS: size of formatted string. 2977 * -EFAULT: target or vport wwpn was not set properly. 2978 * -EPERM: oas is not enabled. 2979 * size of formatted string. 2980 **/ 2981 static ssize_t 2982 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 2983 const char *buf, size_t count) 2984 { 2985 struct Scsi_Host *shost = class_to_shost(dev); 2986 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2987 uint64_t scsi_lun; 2988 uint32_t pri; 2989 ssize_t rc; 2990 2991 if (!phba->cfg_fof) 2992 return -EPERM; 2993 2994 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 2995 return -EFAULT; 2996 2997 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 2998 return -EFAULT; 2999 3000 if (!isdigit(buf[0])) 3001 return -EINVAL; 3002 3003 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3004 return -EINVAL; 3005 3006 pri = phba->cfg_oas_priority; 3007 if (pri == 0) 3008 pri = phba->cfg_XLanePriority; 3009 3010 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3011 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3012 "priority 0x%x with oas state %d\n", 3013 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3014 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3015 pri, phba->cfg_oas_lun_state); 3016 3017 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3018 phba->cfg_oas_tgt_wwpn, scsi_lun, 3019 phba->cfg_oas_lun_state, pri); 3020 if (rc) 3021 return rc; 3022 3023 return count; 3024 } 3025 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3026 lpfc_oas_lun_show, lpfc_oas_lun_store); 3027 3028 int lpfc_enable_nvmet_cnt; 3029 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3030 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3031 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3032 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3033 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3034 3035 static int lpfc_poll = 0; 3036 module_param(lpfc_poll, int, S_IRUGO); 3037 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3038 " 0 - none," 3039 " 1 - poll with interrupts enabled" 3040 " 3 - poll and disable FCP ring interrupts"); 3041 3042 static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR, 3043 lpfc_poll_show, lpfc_poll_store); 3044 3045 int lpfc_no_hba_reset_cnt; 3046 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3047 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3048 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3049 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3050 3051 LPFC_ATTR(sli_mode, 0, 0, 3, 3052 "SLI mode selector:" 3053 " 0 - auto (SLI-3 if supported)," 3054 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3055 " 3 - select SLI-3"); 3056 3057 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3058 "Enable NPIV functionality"); 3059 3060 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3061 "FCF Fast failover=1 Priority failover=2"); 3062 3063 /* 3064 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3065 # 0x0 = disabled, XRI/OXID use not tracked. 3066 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3067 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3068 */ 3069 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3070 "Enable RRQ functionality"); 3071 3072 /* 3073 # lpfc_suppress_link_up: Bring link up at initialization 3074 # 0x0 = bring link up (issue MBX_INIT_LINK) 3075 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3076 # 0x2 = never bring up link 3077 # Default value is 0. 3078 */ 3079 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3080 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3081 "Suppress Link Up at initialization"); 3082 /* 3083 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3084 # 1 - (1024) 3085 # 2 - (2048) 3086 # 3 - (3072) 3087 # 4 - (4096) 3088 # 5 - (5120) 3089 */ 3090 static ssize_t 3091 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3092 { 3093 struct Scsi_Host *shost = class_to_shost(dev); 3094 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3095 3096 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3097 } 3098 3099 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3100 lpfc_iocb_hw_show, NULL); 3101 static ssize_t 3102 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3103 { 3104 struct Scsi_Host *shost = class_to_shost(dev); 3105 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3106 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3107 3108 return snprintf(buf, PAGE_SIZE, "%d\n", pring->txq_max); 3109 } 3110 3111 static DEVICE_ATTR(txq_hw, S_IRUGO, 3112 lpfc_txq_hw_show, NULL); 3113 static ssize_t 3114 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3115 char *buf) 3116 { 3117 struct Scsi_Host *shost = class_to_shost(dev); 3118 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3119 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3120 3121 return snprintf(buf, PAGE_SIZE, "%d\n", pring->txcmplq_max); 3122 } 3123 3124 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3125 lpfc_txcmplq_hw_show, NULL); 3126 3127 LPFC_ATTR_R(iocb_cnt, 2, 1, 5, 3128 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); 3129 3130 /* 3131 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3132 # until the timer expires. Value range is [0,255]. Default value is 30. 3133 */ 3134 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3135 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3136 module_param(lpfc_nodev_tmo, int, 0); 3137 MODULE_PARM_DESC(lpfc_nodev_tmo, 3138 "Seconds driver will hold I/O waiting " 3139 "for a device to come back"); 3140 3141 /** 3142 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3143 * @dev: class converted to a Scsi_host structure. 3144 * @attr: device attribute, not used. 3145 * @buf: on return contains the dev loss timeout in decimal. 3146 * 3147 * Returns: size of formatted string. 3148 **/ 3149 static ssize_t 3150 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3151 char *buf) 3152 { 3153 struct Scsi_Host *shost = class_to_shost(dev); 3154 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3155 3156 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3157 } 3158 3159 /** 3160 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3161 * @vport: lpfc vport structure pointer. 3162 * @val: contains the nodev timeout value. 3163 * 3164 * Description: 3165 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3166 * a kernel error message is printed and zero is returned. 3167 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3168 * Otherwise nodev tmo is set to the default value. 3169 * 3170 * Returns: 3171 * zero if already set or if val is in range 3172 * -EINVAL val out of range 3173 **/ 3174 static int 3175 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3176 { 3177 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3178 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3179 if (val != LPFC_DEF_DEVLOSS_TMO) 3180 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3181 "0407 Ignoring lpfc_nodev_tmo module " 3182 "parameter because lpfc_devloss_tmo " 3183 "is set.\n"); 3184 return 0; 3185 } 3186 3187 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3188 vport->cfg_nodev_tmo = val; 3189 vport->cfg_devloss_tmo = val; 3190 return 0; 3191 } 3192 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3193 "0400 lpfc_nodev_tmo attribute cannot be set to" 3194 " %d, allowed range is [%d, %d]\n", 3195 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3196 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3197 return -EINVAL; 3198 } 3199 3200 /** 3201 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3202 * @vport: lpfc vport structure pointer. 3203 * 3204 * Description: 3205 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3206 **/ 3207 static void 3208 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3209 { 3210 struct Scsi_Host *shost; 3211 struct lpfc_nodelist *ndlp; 3212 3213 shost = lpfc_shost_from_vport(vport); 3214 spin_lock_irq(shost->host_lock); 3215 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3216 if (!NLP_CHK_NODE_ACT(ndlp)) 3217 continue; 3218 if (ndlp->rport) 3219 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3220 } 3221 spin_unlock_irq(shost->host_lock); 3222 } 3223 3224 /** 3225 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3226 * @vport: lpfc vport structure pointer. 3227 * @val: contains the tmo value. 3228 * 3229 * Description: 3230 * If the devloss tmo is already set or the vport dev loss tmo has changed 3231 * then a kernel error message is printed and zero is returned. 3232 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3233 * Otherwise nodev tmo is set to the default value. 3234 * 3235 * Returns: 3236 * zero if already set or if val is in range 3237 * -EINVAL val out of range 3238 **/ 3239 static int 3240 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3241 { 3242 if (vport->dev_loss_tmo_changed || 3243 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3244 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3245 "0401 Ignoring change to lpfc_nodev_tmo " 3246 "because lpfc_devloss_tmo is set.\n"); 3247 return 0; 3248 } 3249 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3250 vport->cfg_nodev_tmo = val; 3251 vport->cfg_devloss_tmo = val; 3252 /* 3253 * For compat: set the fc_host dev loss so new rports 3254 * will get the value. 3255 */ 3256 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3257 lpfc_update_rport_devloss_tmo(vport); 3258 return 0; 3259 } 3260 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3261 "0403 lpfc_nodev_tmo attribute cannot be set to " 3262 "%d, allowed range is [%d, %d]\n", 3263 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3264 return -EINVAL; 3265 } 3266 3267 lpfc_vport_param_store(nodev_tmo) 3268 3269 static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR, 3270 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store); 3271 3272 /* 3273 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3274 # disappear until the timer expires. Value range is [0,255]. Default 3275 # value is 30. 3276 */ 3277 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3278 MODULE_PARM_DESC(lpfc_devloss_tmo, 3279 "Seconds driver will hold I/O waiting " 3280 "for a device to come back"); 3281 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3282 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3283 lpfc_vport_param_show(devloss_tmo) 3284 3285 /** 3286 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3287 * @vport: lpfc vport structure pointer. 3288 * @val: contains the tmo value. 3289 * 3290 * Description: 3291 * If val is in a valid range then set the vport nodev tmo, 3292 * devloss tmo, also set the vport dev loss tmo changed flag. 3293 * Else a kernel error message is printed. 3294 * 3295 * Returns: 3296 * zero if val is in range 3297 * -EINVAL val out of range 3298 **/ 3299 static int 3300 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3301 { 3302 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3303 vport->cfg_nodev_tmo = val; 3304 vport->cfg_devloss_tmo = val; 3305 vport->dev_loss_tmo_changed = 1; 3306 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3307 lpfc_update_rport_devloss_tmo(vport); 3308 return 0; 3309 } 3310 3311 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3312 "0404 lpfc_devloss_tmo attribute cannot be set to " 3313 "%d, allowed range is [%d, %d]\n", 3314 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3315 return -EINVAL; 3316 } 3317 3318 lpfc_vport_param_store(devloss_tmo) 3319 static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR, 3320 lpfc_devloss_tmo_show, lpfc_devloss_tmo_store); 3321 3322 /* 3323 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3324 * lpfc_suppress_rsp = 0 Disable 3325 * lpfc_suppress_rsp = 1 Enable (default) 3326 * 3327 */ 3328 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3329 "Enable suppress rsp feature is firmware supports it"); 3330 3331 /* 3332 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3333 * lpfc_nvmet_mrq = 1 use a single RQ pair 3334 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3335 * 3336 */ 3337 LPFC_ATTR_R(nvmet_mrq, 3338 1, 1, 16, 3339 "Specify number of RQ pairs for processing NVMET cmds"); 3340 3341 /* 3342 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3343 * Supported Values: 1 - register just FCP 3344 * 3 - register both FCP and NVME 3345 * Supported values are [1,3]. Default value is 1 3346 */ 3347 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_FCP, 3348 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3349 "Define fc4 type to register with fabric."); 3350 3351 /* 3352 * lpfc_xri_split: Defines the division of XRI resources between SCSI and NVME 3353 * This parameter is only used if: 3354 * lpfc_enable_fc4_type is 3 - register both FCP and NVME and 3355 * port is not configured for NVMET. 3356 * 3357 * ELS/CT always get 10% of XRIs, up to a maximum of 250 3358 * The remaining XRIs get split up based on lpfc_xri_split per port: 3359 * 3360 * Supported Values are in percentages 3361 * the xri_split value is the percentage the SCSI port will get. The remaining 3362 * percentage will go to NVME. 3363 */ 3364 LPFC_ATTR_R(xri_split, 50, 10, 90, 3365 "Division of XRI resources between SCSI and NVME"); 3366 3367 /* 3368 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3369 # deluged with LOTS of information. 3370 # You can set a bit mask to record specific types of verbose messages: 3371 # See lpfc_logmsh.h for definitions. 3372 */ 3373 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3374 "Verbose logging bit-mask"); 3375 3376 /* 3377 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3378 # objects that have been registered with the nameserver after login. 3379 */ 3380 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3381 "Deregister nameserver objects before LOGO"); 3382 3383 /* 3384 # lun_queue_depth: This parameter is used to limit the number of outstanding 3385 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3386 # If this parameter value is greater than 1/8th the maximum number of exchanges 3387 # supported by the HBA port, then the lun queue depth will be reduced to 3388 # 1/8th the maximum number of exchanges. 3389 */ 3390 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3391 "Max number of FCP commands we can queue to a specific LUN"); 3392 3393 /* 3394 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3395 # commands per target port. Value range is [10,65535]. Default value is 65535. 3396 */ 3397 LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535, 3398 "Max number of FCP commands we can queue to a specific target port"); 3399 3400 /* 3401 # hba_queue_depth: This parameter is used to limit the number of outstanding 3402 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3403 # value is greater than the maximum number of exchanges supported by the HBA, 3404 # then maximum number of exchanges supported by the HBA is used to determine 3405 # the hba_queue_depth. 3406 */ 3407 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3408 "Max number of FCP commands we can queue to a lpfc HBA"); 3409 3410 /* 3411 # peer_port_login: This parameter allows/prevents logins 3412 # between peer ports hosted on the same physical port. 3413 # When this parameter is set 0 peer ports of same physical port 3414 # are not allowed to login to each other. 3415 # When this parameter is set 1 peer ports of same physical port 3416 # are allowed to login to each other. 3417 # Default value of this parameter is 0. 3418 */ 3419 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3420 "Allow peer ports on the same physical port to login to each " 3421 "other."); 3422 3423 /* 3424 # restrict_login: This parameter allows/prevents logins 3425 # between Virtual Ports and remote initiators. 3426 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3427 # other initiators and will attempt to PLOGI all remote ports. 3428 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3429 # remote ports and will not attempt to PLOGI to other initiators. 3430 # This parameter does not restrict to the physical port. 3431 # This parameter does not restrict logins to Fabric resident remote ports. 3432 # Default value of this parameter is 1. 3433 */ 3434 static int lpfc_restrict_login = 1; 3435 module_param(lpfc_restrict_login, int, S_IRUGO); 3436 MODULE_PARM_DESC(lpfc_restrict_login, 3437 "Restrict virtual ports login to remote initiators."); 3438 lpfc_vport_param_show(restrict_login); 3439 3440 /** 3441 * lpfc_restrict_login_init - Set the vport restrict login flag 3442 * @vport: lpfc vport structure pointer. 3443 * @val: contains the restrict login value. 3444 * 3445 * Description: 3446 * If val is not in a valid range then log a kernel error message and set 3447 * the vport restrict login to one. 3448 * If the port type is physical clear the restrict login flag and return. 3449 * Else set the restrict login flag to val. 3450 * 3451 * Returns: 3452 * zero if val is in range 3453 * -EINVAL val out of range 3454 **/ 3455 static int 3456 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3457 { 3458 if (val < 0 || val > 1) { 3459 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3460 "0422 lpfc_restrict_login attribute cannot " 3461 "be set to %d, allowed range is [0, 1]\n", 3462 val); 3463 vport->cfg_restrict_login = 1; 3464 return -EINVAL; 3465 } 3466 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3467 vport->cfg_restrict_login = 0; 3468 return 0; 3469 } 3470 vport->cfg_restrict_login = val; 3471 return 0; 3472 } 3473 3474 /** 3475 * lpfc_restrict_login_set - Set the vport restrict login flag 3476 * @vport: lpfc vport structure pointer. 3477 * @val: contains the restrict login value. 3478 * 3479 * Description: 3480 * If val is not in a valid range then log a kernel error message and set 3481 * the vport restrict login to one. 3482 * If the port type is physical and the val is not zero log a kernel 3483 * error message, clear the restrict login flag and return zero. 3484 * Else set the restrict login flag to val. 3485 * 3486 * Returns: 3487 * zero if val is in range 3488 * -EINVAL val out of range 3489 **/ 3490 static int 3491 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3492 { 3493 if (val < 0 || val > 1) { 3494 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3495 "0425 lpfc_restrict_login attribute cannot " 3496 "be set to %d, allowed range is [0, 1]\n", 3497 val); 3498 vport->cfg_restrict_login = 1; 3499 return -EINVAL; 3500 } 3501 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3502 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3503 "0468 lpfc_restrict_login must be 0 for " 3504 "Physical ports.\n"); 3505 vport->cfg_restrict_login = 0; 3506 return 0; 3507 } 3508 vport->cfg_restrict_login = val; 3509 return 0; 3510 } 3511 lpfc_vport_param_store(restrict_login); 3512 static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR, 3513 lpfc_restrict_login_show, lpfc_restrict_login_store); 3514 3515 /* 3516 # Some disk devices have a "select ID" or "select Target" capability. 3517 # From a protocol standpoint "select ID" usually means select the 3518 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3519 # annex" which contains a table that maps a "select ID" (a number 3520 # between 0 and 7F) to an ALPA. By default, for compatibility with 3521 # older drivers, the lpfc driver scans this table from low ALPA to high 3522 # ALPA. 3523 # 3524 # Turning on the scan-down variable (on = 1, off = 0) will 3525 # cause the lpfc driver to use an inverted table, effectively 3526 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3527 # 3528 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3529 # and will not work across a fabric. Also this parameter will take 3530 # effect only in the case when ALPA map is not available.) 3531 */ 3532 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3533 "Start scanning for devices from highest ALPA to lowest"); 3534 3535 /* 3536 # lpfc_topology: link topology for init link 3537 # 0x0 = attempt loop mode then point-to-point 3538 # 0x01 = internal loopback mode 3539 # 0x02 = attempt point-to-point mode only 3540 # 0x04 = attempt loop mode only 3541 # 0x06 = attempt point-to-point mode then loop 3542 # Set point-to-point mode if you want to run as an N_Port. 3543 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3544 # Default value is 0. 3545 */ 3546 LPFC_ATTR(topology, 0, 0, 6, 3547 "Select Fibre Channel topology"); 3548 3549 /** 3550 * lpfc_topology_set - Set the adapters topology field 3551 * @phba: lpfc_hba pointer. 3552 * @val: topology value. 3553 * 3554 * Description: 3555 * If val is in a valid range then set the adapter's topology field and 3556 * issue a lip; if the lip fails reset the topology to the old value. 3557 * 3558 * If the value is not in range log a kernel error message and return an error. 3559 * 3560 * Returns: 3561 * zero if val is in range and lip okay 3562 * non-zero return value from lpfc_issue_lip() 3563 * -EINVAL val out of range 3564 **/ 3565 static ssize_t 3566 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 3567 const char *buf, size_t count) 3568 { 3569 struct Scsi_Host *shost = class_to_shost(dev); 3570 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3571 struct lpfc_hba *phba = vport->phba; 3572 int val = 0; 3573 int nolip = 0; 3574 const char *val_buf = buf; 3575 int err; 3576 uint32_t prev_val; 3577 3578 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 3579 nolip = 1; 3580 val_buf = &buf[strlen("nolip ")]; 3581 } 3582 3583 if (!isdigit(val_buf[0])) 3584 return -EINVAL; 3585 if (sscanf(val_buf, "%i", &val) != 1) 3586 return -EINVAL; 3587 3588 if (val >= 0 && val <= 6) { 3589 prev_val = phba->cfg_topology; 3590 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 3591 val == 4) { 3592 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3593 "3113 Loop mode not supported at speed %d\n", 3594 val); 3595 return -EINVAL; 3596 } 3597 if (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC && 3598 val == 4) { 3599 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3600 "3114 Loop mode not supported\n"); 3601 return -EINVAL; 3602 } 3603 phba->cfg_topology = val; 3604 if (nolip) 3605 return strlen(buf); 3606 3607 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3608 "3054 lpfc_topology changed from %d to %d\n", 3609 prev_val, val); 3610 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 3611 phba->fc_topology_changed = 1; 3612 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 3613 if (err) { 3614 phba->cfg_topology = prev_val; 3615 return -EINVAL; 3616 } else 3617 return strlen(buf); 3618 } 3619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3620 "%d:0467 lpfc_topology attribute cannot be set to %d, " 3621 "allowed range is [0, 6]\n", 3622 phba->brd_no, val); 3623 return -EINVAL; 3624 } 3625 3626 lpfc_param_show(topology) 3627 static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, 3628 lpfc_topology_show, lpfc_topology_store); 3629 3630 /** 3631 * lpfc_static_vport_show: Read callback function for 3632 * lpfc_static_vport sysfs file. 3633 * @dev: Pointer to class device object. 3634 * @attr: device attribute structure. 3635 * @buf: Data buffer. 3636 * 3637 * This function is the read call back function for 3638 * lpfc_static_vport sysfs file. The lpfc_static_vport 3639 * sysfs file report the mageability of the vport. 3640 **/ 3641 static ssize_t 3642 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 3643 char *buf) 3644 { 3645 struct Scsi_Host *shost = class_to_shost(dev); 3646 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3647 if (vport->vport_flag & STATIC_VPORT) 3648 sprintf(buf, "1\n"); 3649 else 3650 sprintf(buf, "0\n"); 3651 3652 return strlen(buf); 3653 } 3654 3655 /* 3656 * Sysfs attribute to control the statistical data collection. 3657 */ 3658 static DEVICE_ATTR(lpfc_static_vport, S_IRUGO, 3659 lpfc_static_vport_show, NULL); 3660 3661 /** 3662 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 3663 * @dev: Pointer to class device. 3664 * @buf: Data buffer. 3665 * @count: Size of the data buffer. 3666 * 3667 * This function get called when a user write to the lpfc_stat_data_ctrl 3668 * sysfs file. This function parse the command written to the sysfs file 3669 * and take appropriate action. These commands are used for controlling 3670 * driver statistical data collection. 3671 * Following are the command this function handles. 3672 * 3673 * setbucket <bucket_type> <base> <step> 3674 * = Set the latency buckets. 3675 * destroybucket = destroy all the buckets. 3676 * start = start data collection 3677 * stop = stop data collection 3678 * reset = reset the collected data 3679 **/ 3680 static ssize_t 3681 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 3682 const char *buf, size_t count) 3683 { 3684 struct Scsi_Host *shost = class_to_shost(dev); 3685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3686 struct lpfc_hba *phba = vport->phba; 3687 #define LPFC_MAX_DATA_CTRL_LEN 1024 3688 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 3689 unsigned long i; 3690 char *str_ptr, *token; 3691 struct lpfc_vport **vports; 3692 struct Scsi_Host *v_shost; 3693 char *bucket_type_str, *base_str, *step_str; 3694 unsigned long base, step, bucket_type; 3695 3696 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 3697 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 3698 return -EINVAL; 3699 3700 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 3701 str_ptr = &bucket_data[0]; 3702 /* Ignore this token - this is command token */ 3703 token = strsep(&str_ptr, "\t "); 3704 if (!token) 3705 return -EINVAL; 3706 3707 bucket_type_str = strsep(&str_ptr, "\t "); 3708 if (!bucket_type_str) 3709 return -EINVAL; 3710 3711 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 3712 bucket_type = LPFC_LINEAR_BUCKET; 3713 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 3714 bucket_type = LPFC_POWER2_BUCKET; 3715 else 3716 return -EINVAL; 3717 3718 base_str = strsep(&str_ptr, "\t "); 3719 if (!base_str) 3720 return -EINVAL; 3721 base = simple_strtoul(base_str, NULL, 0); 3722 3723 step_str = strsep(&str_ptr, "\t "); 3724 if (!step_str) 3725 return -EINVAL; 3726 step = simple_strtoul(step_str, NULL, 0); 3727 if (!step) 3728 return -EINVAL; 3729 3730 /* Block the data collection for every vport */ 3731 vports = lpfc_create_vport_work_array(phba); 3732 if (vports == NULL) 3733 return -ENOMEM; 3734 3735 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3736 v_shost = lpfc_shost_from_vport(vports[i]); 3737 spin_lock_irq(v_shost->host_lock); 3738 /* Block and reset data collection */ 3739 vports[i]->stat_data_blocked = 1; 3740 if (vports[i]->stat_data_enabled) 3741 lpfc_vport_reset_stat_data(vports[i]); 3742 spin_unlock_irq(v_shost->host_lock); 3743 } 3744 3745 /* Set the bucket attributes */ 3746 phba->bucket_type = bucket_type; 3747 phba->bucket_base = base; 3748 phba->bucket_step = step; 3749 3750 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3751 v_shost = lpfc_shost_from_vport(vports[i]); 3752 3753 /* Unblock data collection */ 3754 spin_lock_irq(v_shost->host_lock); 3755 vports[i]->stat_data_blocked = 0; 3756 spin_unlock_irq(v_shost->host_lock); 3757 } 3758 lpfc_destroy_vport_work_array(phba, vports); 3759 return strlen(buf); 3760 } 3761 3762 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 3763 vports = lpfc_create_vport_work_array(phba); 3764 if (vports == NULL) 3765 return -ENOMEM; 3766 3767 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3768 v_shost = lpfc_shost_from_vport(vports[i]); 3769 spin_lock_irq(shost->host_lock); 3770 vports[i]->stat_data_blocked = 1; 3771 lpfc_free_bucket(vport); 3772 vport->stat_data_enabled = 0; 3773 vports[i]->stat_data_blocked = 0; 3774 spin_unlock_irq(shost->host_lock); 3775 } 3776 lpfc_destroy_vport_work_array(phba, vports); 3777 phba->bucket_type = LPFC_NO_BUCKET; 3778 phba->bucket_base = 0; 3779 phba->bucket_step = 0; 3780 return strlen(buf); 3781 } 3782 3783 if (!strncmp(buf, "start", strlen("start"))) { 3784 /* If no buckets configured return error */ 3785 if (phba->bucket_type == LPFC_NO_BUCKET) 3786 return -EINVAL; 3787 spin_lock_irq(shost->host_lock); 3788 if (vport->stat_data_enabled) { 3789 spin_unlock_irq(shost->host_lock); 3790 return strlen(buf); 3791 } 3792 lpfc_alloc_bucket(vport); 3793 vport->stat_data_enabled = 1; 3794 spin_unlock_irq(shost->host_lock); 3795 return strlen(buf); 3796 } 3797 3798 if (!strncmp(buf, "stop", strlen("stop"))) { 3799 spin_lock_irq(shost->host_lock); 3800 if (vport->stat_data_enabled == 0) { 3801 spin_unlock_irq(shost->host_lock); 3802 return strlen(buf); 3803 } 3804 lpfc_free_bucket(vport); 3805 vport->stat_data_enabled = 0; 3806 spin_unlock_irq(shost->host_lock); 3807 return strlen(buf); 3808 } 3809 3810 if (!strncmp(buf, "reset", strlen("reset"))) { 3811 if ((phba->bucket_type == LPFC_NO_BUCKET) 3812 || !vport->stat_data_enabled) 3813 return strlen(buf); 3814 spin_lock_irq(shost->host_lock); 3815 vport->stat_data_blocked = 1; 3816 lpfc_vport_reset_stat_data(vport); 3817 vport->stat_data_blocked = 0; 3818 spin_unlock_irq(shost->host_lock); 3819 return strlen(buf); 3820 } 3821 return -EINVAL; 3822 } 3823 3824 3825 /** 3826 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 3827 * @dev: Pointer to class device object. 3828 * @buf: Data buffer. 3829 * 3830 * This function is the read call back function for 3831 * lpfc_stat_data_ctrl sysfs file. This function report the 3832 * current statistical data collection state. 3833 **/ 3834 static ssize_t 3835 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 3836 char *buf) 3837 { 3838 struct Scsi_Host *shost = class_to_shost(dev); 3839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3840 struct lpfc_hba *phba = vport->phba; 3841 int index = 0; 3842 int i; 3843 char *bucket_type; 3844 unsigned long bucket_value; 3845 3846 switch (phba->bucket_type) { 3847 case LPFC_LINEAR_BUCKET: 3848 bucket_type = "linear"; 3849 break; 3850 case LPFC_POWER2_BUCKET: 3851 bucket_type = "power2"; 3852 break; 3853 default: 3854 bucket_type = "No Bucket"; 3855 break; 3856 } 3857 3858 sprintf(&buf[index], "Statistical Data enabled :%d, " 3859 "blocked :%d, Bucket type :%s, Bucket base :%d," 3860 " Bucket step :%d\nLatency Ranges :", 3861 vport->stat_data_enabled, vport->stat_data_blocked, 3862 bucket_type, phba->bucket_base, phba->bucket_step); 3863 index = strlen(buf); 3864 if (phba->bucket_type != LPFC_NO_BUCKET) { 3865 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 3866 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 3867 bucket_value = phba->bucket_base + 3868 phba->bucket_step * i; 3869 else 3870 bucket_value = phba->bucket_base + 3871 (1 << i) * phba->bucket_step; 3872 3873 if (index + 10 > PAGE_SIZE) 3874 break; 3875 sprintf(&buf[index], "%08ld ", bucket_value); 3876 index = strlen(buf); 3877 } 3878 } 3879 sprintf(&buf[index], "\n"); 3880 return strlen(buf); 3881 } 3882 3883 /* 3884 * Sysfs attribute to control the statistical data collection. 3885 */ 3886 static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR, 3887 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store); 3888 3889 /* 3890 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 3891 */ 3892 3893 /* 3894 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 3895 * for each target. 3896 */ 3897 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 3898 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 3899 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 3900 3901 3902 /** 3903 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 3904 * @filp: sysfs file 3905 * @kobj: Pointer to the kernel object 3906 * @bin_attr: Attribute object 3907 * @buff: Buffer pointer 3908 * @off: File offset 3909 * @count: Buffer size 3910 * 3911 * This function is the read call back function for lpfc_drvr_stat_data 3912 * sysfs file. This function export the statistical data to user 3913 * applications. 3914 **/ 3915 static ssize_t 3916 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 3917 struct bin_attribute *bin_attr, 3918 char *buf, loff_t off, size_t count) 3919 { 3920 struct device *dev = container_of(kobj, struct device, 3921 kobj); 3922 struct Scsi_Host *shost = class_to_shost(dev); 3923 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3924 struct lpfc_hba *phba = vport->phba; 3925 int i = 0, index = 0; 3926 unsigned long nport_index; 3927 struct lpfc_nodelist *ndlp = NULL; 3928 nport_index = (unsigned long)off / 3929 MAX_STAT_DATA_SIZE_PER_TARGET; 3930 3931 if (!vport->stat_data_enabled || vport->stat_data_blocked 3932 || (phba->bucket_type == LPFC_NO_BUCKET)) 3933 return 0; 3934 3935 spin_lock_irq(shost->host_lock); 3936 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3937 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 3938 continue; 3939 3940 if (nport_index > 0) { 3941 nport_index--; 3942 continue; 3943 } 3944 3945 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 3946 > count) 3947 break; 3948 3949 if (!ndlp->lat_data) 3950 continue; 3951 3952 /* Print the WWN */ 3953 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 3954 ndlp->nlp_portname.u.wwn[0], 3955 ndlp->nlp_portname.u.wwn[1], 3956 ndlp->nlp_portname.u.wwn[2], 3957 ndlp->nlp_portname.u.wwn[3], 3958 ndlp->nlp_portname.u.wwn[4], 3959 ndlp->nlp_portname.u.wwn[5], 3960 ndlp->nlp_portname.u.wwn[6], 3961 ndlp->nlp_portname.u.wwn[7]); 3962 3963 index = strlen(buf); 3964 3965 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 3966 sprintf(&buf[index], "%010u,", 3967 ndlp->lat_data[i].cmd_count); 3968 index = strlen(buf); 3969 } 3970 sprintf(&buf[index], "\n"); 3971 index = strlen(buf); 3972 } 3973 spin_unlock_irq(shost->host_lock); 3974 return index; 3975 } 3976 3977 static struct bin_attribute sysfs_drvr_stat_data_attr = { 3978 .attr = { 3979 .name = "lpfc_drvr_stat_data", 3980 .mode = S_IRUSR, 3981 }, 3982 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 3983 .read = sysfs_drvr_stat_data_read, 3984 .write = NULL, 3985 }; 3986 3987 /* 3988 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 3989 # connection. 3990 # Value range is [0,16]. Default value is 0. 3991 */ 3992 /** 3993 * lpfc_link_speed_set - Set the adapters link speed 3994 * @phba: lpfc_hba pointer. 3995 * @val: link speed value. 3996 * 3997 * Description: 3998 * If val is in a valid range then set the adapter's link speed field and 3999 * issue a lip; if the lip fails reset the link speed to the old value. 4000 * 4001 * Notes: 4002 * If the value is not in range log a kernel error message and return an error. 4003 * 4004 * Returns: 4005 * zero if val is in range and lip okay. 4006 * non-zero return value from lpfc_issue_lip() 4007 * -EINVAL val out of range 4008 **/ 4009 static ssize_t 4010 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4011 const char *buf, size_t count) 4012 { 4013 struct Scsi_Host *shost = class_to_shost(dev); 4014 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4015 struct lpfc_hba *phba = vport->phba; 4016 int val = LPFC_USER_LINK_SPEED_AUTO; 4017 int nolip = 0; 4018 const char *val_buf = buf; 4019 int err; 4020 uint32_t prev_val, if_type; 4021 4022 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4023 if (if_type == LPFC_SLI_INTF_IF_TYPE_2 && 4024 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4025 return -EPERM; 4026 4027 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4028 nolip = 1; 4029 val_buf = &buf[strlen("nolip ")]; 4030 } 4031 4032 if (!isdigit(val_buf[0])) 4033 return -EINVAL; 4034 if (sscanf(val_buf, "%i", &val) != 1) 4035 return -EINVAL; 4036 4037 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4038 "3055 lpfc_link_speed changed from %d to %d %s\n", 4039 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4040 4041 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4042 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4043 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4044 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4045 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4046 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4047 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb))) { 4048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4049 "2879 lpfc_link_speed attribute cannot be set " 4050 "to %d. Speed is not supported by this port.\n", 4051 val); 4052 return -EINVAL; 4053 } 4054 if (val == LPFC_USER_LINK_SPEED_16G && 4055 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4057 "3112 lpfc_link_speed attribute cannot be set " 4058 "to %d. Speed is not supported in loop mode.\n", 4059 val); 4060 return -EINVAL; 4061 } 4062 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) && 4063 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) { 4064 prev_val = phba->cfg_link_speed; 4065 phba->cfg_link_speed = val; 4066 if (nolip) 4067 return strlen(buf); 4068 4069 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4070 if (err) { 4071 phba->cfg_link_speed = prev_val; 4072 return -EINVAL; 4073 } else 4074 return strlen(buf); 4075 } 4076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4077 "0469 lpfc_link_speed attribute cannot be set to %d, " 4078 "allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val); 4079 return -EINVAL; 4080 } 4081 4082 static int lpfc_link_speed = 0; 4083 module_param(lpfc_link_speed, int, S_IRUGO); 4084 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4085 lpfc_param_show(link_speed) 4086 4087 /** 4088 * lpfc_link_speed_init - Set the adapters link speed 4089 * @phba: lpfc_hba pointer. 4090 * @val: link speed value. 4091 * 4092 * Description: 4093 * If val is in a valid range then set the adapter's link speed field. 4094 * 4095 * Notes: 4096 * If the value is not in range log a kernel error message, clear the link 4097 * speed and return an error. 4098 * 4099 * Returns: 4100 * zero if val saved. 4101 * -EINVAL val out of range 4102 **/ 4103 static int 4104 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4105 { 4106 if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4108 "3111 lpfc_link_speed of %d cannot " 4109 "support loop mode, setting topology to default.\n", 4110 val); 4111 phba->cfg_topology = 0; 4112 } 4113 if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) && 4114 (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) { 4115 phba->cfg_link_speed = val; 4116 return 0; 4117 } 4118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4119 "0405 lpfc_link_speed attribute cannot " 4120 "be set to %d, allowed values are " 4121 "["LPFC_LINK_SPEED_STRING"]\n", val); 4122 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4123 return -EINVAL; 4124 } 4125 4126 static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR, 4127 lpfc_link_speed_show, lpfc_link_speed_store); 4128 4129 /* 4130 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4131 # 0 = aer disabled or not supported 4132 # 1 = aer supported and enabled (default) 4133 # Value range is [0,1]. Default value is 1. 4134 */ 4135 LPFC_ATTR(aer_support, 1, 0, 1, 4136 "Enable PCIe device AER support"); 4137 lpfc_param_show(aer_support) 4138 4139 /** 4140 * lpfc_aer_support_store - Set the adapter for aer support 4141 * 4142 * @dev: class device that is converted into a Scsi_host. 4143 * @attr: device attribute, not used. 4144 * @buf: containing enable or disable aer flag. 4145 * @count: unused variable. 4146 * 4147 * Description: 4148 * If the val is 1 and currently the device's AER capability was not 4149 * enabled, invoke the kernel's enable AER helper routine, trying to 4150 * enable the device's AER capability. If the helper routine enabling 4151 * AER returns success, update the device's cfg_aer_support flag to 4152 * indicate AER is supported by the device; otherwise, if the device 4153 * AER capability is already enabled to support AER, then do nothing. 4154 * 4155 * If the val is 0 and currently the device's AER support was enabled, 4156 * invoke the kernel's disable AER helper routine. After that, update 4157 * the device's cfg_aer_support flag to indicate AER is not supported 4158 * by the device; otherwise, if the device AER capability is already 4159 * disabled from supporting AER, then do nothing. 4160 * 4161 * Returns: 4162 * length of the buf on success if val is in range the intended mode 4163 * is supported. 4164 * -EINVAL if val out of range or intended mode is not supported. 4165 **/ 4166 static ssize_t 4167 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4168 const char *buf, size_t count) 4169 { 4170 struct Scsi_Host *shost = class_to_shost(dev); 4171 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4172 struct lpfc_hba *phba = vport->phba; 4173 int val = 0, rc = -EINVAL; 4174 4175 if (!isdigit(buf[0])) 4176 return -EINVAL; 4177 if (sscanf(buf, "%i", &val) != 1) 4178 return -EINVAL; 4179 4180 switch (val) { 4181 case 0: 4182 if (phba->hba_flag & HBA_AER_ENABLED) { 4183 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4184 if (!rc) { 4185 spin_lock_irq(&phba->hbalock); 4186 phba->hba_flag &= ~HBA_AER_ENABLED; 4187 spin_unlock_irq(&phba->hbalock); 4188 phba->cfg_aer_support = 0; 4189 rc = strlen(buf); 4190 } else 4191 rc = -EPERM; 4192 } else { 4193 phba->cfg_aer_support = 0; 4194 rc = strlen(buf); 4195 } 4196 break; 4197 case 1: 4198 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4199 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4200 if (!rc) { 4201 spin_lock_irq(&phba->hbalock); 4202 phba->hba_flag |= HBA_AER_ENABLED; 4203 spin_unlock_irq(&phba->hbalock); 4204 phba->cfg_aer_support = 1; 4205 rc = strlen(buf); 4206 } else 4207 rc = -EPERM; 4208 } else { 4209 phba->cfg_aer_support = 1; 4210 rc = strlen(buf); 4211 } 4212 break; 4213 default: 4214 rc = -EINVAL; 4215 break; 4216 } 4217 return rc; 4218 } 4219 4220 static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR, 4221 lpfc_aer_support_show, lpfc_aer_support_store); 4222 4223 /** 4224 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4225 * @dev: class device that is converted into a Scsi_host. 4226 * @attr: device attribute, not used. 4227 * @buf: containing flag 1 for aer cleanup state. 4228 * @count: unused variable. 4229 * 4230 * Description: 4231 * If the @buf contains 1 and the device currently has the AER support 4232 * enabled, then invokes the kernel AER helper routine 4233 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable 4234 * error status register. 4235 * 4236 * Notes: 4237 * 4238 * Returns: 4239 * -EINVAL if the buf does not contain the 1 or the device is not currently 4240 * enabled with the AER support. 4241 **/ 4242 static ssize_t 4243 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4244 const char *buf, size_t count) 4245 { 4246 struct Scsi_Host *shost = class_to_shost(dev); 4247 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4248 struct lpfc_hba *phba = vport->phba; 4249 int val, rc = -1; 4250 4251 if (!isdigit(buf[0])) 4252 return -EINVAL; 4253 if (sscanf(buf, "%i", &val) != 1) 4254 return -EINVAL; 4255 if (val != 1) 4256 return -EINVAL; 4257 4258 if (phba->hba_flag & HBA_AER_ENABLED) 4259 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); 4260 4261 if (rc == 0) 4262 return strlen(buf); 4263 else 4264 return -EPERM; 4265 } 4266 4267 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4268 lpfc_aer_cleanup_state); 4269 4270 /** 4271 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4272 * 4273 * @dev: class device that is converted into a Scsi_host. 4274 * @attr: device attribute, not used. 4275 * @buf: containing the string the number of vfs to be enabled. 4276 * @count: unused variable. 4277 * 4278 * Description: 4279 * When this api is called either through user sysfs, the driver shall 4280 * try to enable or disable SR-IOV virtual functions according to the 4281 * following: 4282 * 4283 * If zero virtual function has been enabled to the physical function, 4284 * the driver shall invoke the pci enable virtual function api trying 4285 * to enable the virtual functions. If the nr_vfn provided is greater 4286 * than the maximum supported, the maximum virtual function number will 4287 * be used for invoking the api; otherwise, the nr_vfn provided shall 4288 * be used for invoking the api. If the api call returned success, the 4289 * actual number of virtual functions enabled will be set to the driver 4290 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4291 * cfg_sriov_nr_virtfn remains zero. 4292 * 4293 * If none-zero virtual functions have already been enabled to the 4294 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4295 * -EINVAL will be returned and the driver does nothing; 4296 * 4297 * If the nr_vfn provided is zero and none-zero virtual functions have 4298 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4299 * disabling virtual function api shall be invoded to disable all the 4300 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4301 * zero. Otherwise, if zero virtual function has been enabled, do 4302 * nothing. 4303 * 4304 * Returns: 4305 * length of the buf on success if val is in range the intended mode 4306 * is supported. 4307 * -EINVAL if val out of range or intended mode is not supported. 4308 **/ 4309 static ssize_t 4310 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4311 const char *buf, size_t count) 4312 { 4313 struct Scsi_Host *shost = class_to_shost(dev); 4314 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4315 struct lpfc_hba *phba = vport->phba; 4316 struct pci_dev *pdev = phba->pcidev; 4317 int val = 0, rc = -EINVAL; 4318 4319 /* Sanity check on user data */ 4320 if (!isdigit(buf[0])) 4321 return -EINVAL; 4322 if (sscanf(buf, "%i", &val) != 1) 4323 return -EINVAL; 4324 if (val < 0) 4325 return -EINVAL; 4326 4327 /* Request disabling virtual functions */ 4328 if (val == 0) { 4329 if (phba->cfg_sriov_nr_virtfn > 0) { 4330 pci_disable_sriov(pdev); 4331 phba->cfg_sriov_nr_virtfn = 0; 4332 } 4333 return strlen(buf); 4334 } 4335 4336 /* Request enabling virtual functions */ 4337 if (phba->cfg_sriov_nr_virtfn > 0) { 4338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4339 "3018 There are %d virtual functions " 4340 "enabled on physical function.\n", 4341 phba->cfg_sriov_nr_virtfn); 4342 return -EEXIST; 4343 } 4344 4345 if (val <= LPFC_MAX_VFN_PER_PFN) 4346 phba->cfg_sriov_nr_virtfn = val; 4347 else { 4348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4349 "3019 Enabling %d virtual functions is not " 4350 "allowed.\n", val); 4351 return -EINVAL; 4352 } 4353 4354 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4355 if (rc) { 4356 phba->cfg_sriov_nr_virtfn = 0; 4357 rc = -EPERM; 4358 } else 4359 rc = strlen(buf); 4360 4361 return rc; 4362 } 4363 4364 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4365 "Enable PCIe device SR-IOV virtual fn"); 4366 4367 lpfc_param_show(sriov_nr_virtfn) 4368 static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR, 4369 lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store); 4370 4371 /** 4372 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4373 * 4374 * @dev: class device that is converted into a Scsi_host. 4375 * @attr: device attribute, not used. 4376 * @buf: containing the string the number of vfs to be enabled. 4377 * @count: unused variable. 4378 * 4379 * Description: 4380 * 4381 * Returns: 4382 * length of the buf on success if val is in range the intended mode 4383 * is supported. 4384 * -EINVAL if val out of range or intended mode is not supported. 4385 **/ 4386 static ssize_t 4387 lpfc_request_firmware_upgrade_store(struct device *dev, 4388 struct device_attribute *attr, 4389 const char *buf, size_t count) 4390 { 4391 struct Scsi_Host *shost = class_to_shost(dev); 4392 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4393 struct lpfc_hba *phba = vport->phba; 4394 int val = 0, rc = -EINVAL; 4395 4396 /* Sanity check on user data */ 4397 if (!isdigit(buf[0])) 4398 return -EINVAL; 4399 if (sscanf(buf, "%i", &val) != 1) 4400 return -EINVAL; 4401 if (val != 1) 4402 return -EINVAL; 4403 4404 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4405 if (rc) 4406 rc = -EPERM; 4407 else 4408 rc = strlen(buf); 4409 return rc; 4410 } 4411 4412 static int lpfc_req_fw_upgrade; 4413 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4414 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4415 lpfc_param_show(request_firmware_upgrade) 4416 4417 /** 4418 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4419 * @phba: lpfc_hba pointer. 4420 * @val: 0 or 1. 4421 * 4422 * Description: 4423 * Set the initial Linux generic firmware upgrade enable or disable flag. 4424 * 4425 * Returns: 4426 * zero if val saved. 4427 * -EINVAL val out of range 4428 **/ 4429 static int 4430 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4431 { 4432 if (val >= 0 && val <= 1) { 4433 phba->cfg_request_firmware_upgrade = val; 4434 return 0; 4435 } 4436 return -EINVAL; 4437 } 4438 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4439 lpfc_request_firmware_upgrade_show, 4440 lpfc_request_firmware_upgrade_store); 4441 4442 /** 4443 * lpfc_fcp_imax_store 4444 * 4445 * @dev: class device that is converted into a Scsi_host. 4446 * @attr: device attribute, not used. 4447 * @buf: string with the number of fast-path FCP interrupts per second. 4448 * @count: unused variable. 4449 * 4450 * Description: 4451 * If val is in a valid range [636,651042], then set the adapter's 4452 * maximum number of fast-path FCP interrupts per second. 4453 * 4454 * Returns: 4455 * length of the buf on success if val is in range the intended mode 4456 * is supported. 4457 * -EINVAL if val out of range or intended mode is not supported. 4458 **/ 4459 static ssize_t 4460 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4461 const char *buf, size_t count) 4462 { 4463 struct Scsi_Host *shost = class_to_shost(dev); 4464 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4465 struct lpfc_hba *phba = vport->phba; 4466 int val = 0, i; 4467 4468 /* fcp_imax is only valid for SLI4 */ 4469 if (phba->sli_rev != LPFC_SLI_REV4) 4470 return -EINVAL; 4471 4472 /* Sanity check on user data */ 4473 if (!isdigit(buf[0])) 4474 return -EINVAL; 4475 if (sscanf(buf, "%i", &val) != 1) 4476 return -EINVAL; 4477 4478 /* 4479 * Value range for the HBA is [5000,5000000] 4480 * The value for each EQ depends on how many EQs are configured. 4481 * Allow value == 0 4482 */ 4483 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4484 return -EINVAL; 4485 4486 phba->cfg_fcp_imax = (uint32_t)val; 4487 phba->initial_imax = phba->cfg_fcp_imax; 4488 4489 for (i = 0; i < phba->io_channel_irqs; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4490 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4491 val); 4492 4493 return strlen(buf); 4494 } 4495 4496 /* 4497 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4498 # for the HBA. 4499 # 4500 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 4501 */ 4502 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4503 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4504 MODULE_PARM_DESC(lpfc_fcp_imax, 4505 "Set the maximum number of FCP interrupts per second per HBA"); 4506 lpfc_param_show(fcp_imax) 4507 4508 /** 4509 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4510 * @phba: lpfc_hba pointer. 4511 * @val: link speed value. 4512 * 4513 * Description: 4514 * If val is in a valid range [636,651042], then initialize the adapter's 4515 * maximum number of fast-path FCP interrupts per second. 4516 * 4517 * Returns: 4518 * zero if val saved. 4519 * -EINVAL val out of range 4520 **/ 4521 static int 4522 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 4523 { 4524 if (phba->sli_rev != LPFC_SLI_REV4) { 4525 phba->cfg_fcp_imax = 0; 4526 return 0; 4527 } 4528 4529 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 4530 (val == 0)) { 4531 phba->cfg_fcp_imax = val; 4532 return 0; 4533 } 4534 4535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4536 "3016 lpfc_fcp_imax: %d out of range, using default\n", 4537 val); 4538 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 4539 4540 return 0; 4541 } 4542 4543 static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR, 4544 lpfc_fcp_imax_show, lpfc_fcp_imax_store); 4545 4546 /* 4547 * lpfc_auto_imax: Controls Auto-interrupt coalescing values support. 4548 * 0 No auto_imax support 4549 * 1 auto imax on 4550 * Auto imax will change the value of fcp_imax on a per EQ basis, using 4551 * the EQ Delay Multiplier, depending on the activity for that EQ. 4552 * Value range [0,1]. Default value is 1. 4553 */ 4554 LPFC_ATTR_RW(auto_imax, 1, 0, 1, "Enable Auto imax"); 4555 4556 /** 4557 * lpfc_state_show - Display current driver CPU affinity 4558 * @dev: class converted to a Scsi_host structure. 4559 * @attr: device attribute, not used. 4560 * @buf: on return contains text describing the state of the link. 4561 * 4562 * Returns: size of formatted string. 4563 **/ 4564 static ssize_t 4565 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 4566 char *buf) 4567 { 4568 struct Scsi_Host *shost = class_to_shost(dev); 4569 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4570 struct lpfc_hba *phba = vport->phba; 4571 struct lpfc_vector_map_info *cpup; 4572 int len = 0; 4573 4574 if ((phba->sli_rev != LPFC_SLI_REV4) || 4575 (phba->intr_type != MSIX)) 4576 return len; 4577 4578 switch (phba->cfg_fcp_cpu_map) { 4579 case 0: 4580 len += snprintf(buf + len, PAGE_SIZE-len, 4581 "fcp_cpu_map: No mapping (%d)\n", 4582 phba->cfg_fcp_cpu_map); 4583 return len; 4584 case 1: 4585 len += snprintf(buf + len, PAGE_SIZE-len, 4586 "fcp_cpu_map: HBA centric mapping (%d): " 4587 "%d online CPUs\n", 4588 phba->cfg_fcp_cpu_map, 4589 phba->sli4_hba.num_online_cpu); 4590 break; 4591 case 2: 4592 len += snprintf(buf + len, PAGE_SIZE-len, 4593 "fcp_cpu_map: Driver centric mapping (%d): " 4594 "%d online CPUs\n", 4595 phba->cfg_fcp_cpu_map, 4596 phba->sli4_hba.num_online_cpu); 4597 break; 4598 } 4599 4600 while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) { 4601 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 4602 4603 /* margin should fit in this and the truncated message */ 4604 if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) 4605 len += snprintf(buf + len, PAGE_SIZE-len, 4606 "CPU %02d io_chan %02d " 4607 "physid %d coreid %d\n", 4608 phba->sli4_hba.curr_disp_cpu, 4609 cpup->channel_id, cpup->phys_id, 4610 cpup->core_id); 4611 else 4612 len += snprintf(buf + len, PAGE_SIZE-len, 4613 "CPU %02d io_chan %02d " 4614 "physid %d coreid %d IRQ %d\n", 4615 phba->sli4_hba.curr_disp_cpu, 4616 cpup->channel_id, cpup->phys_id, 4617 cpup->core_id, cpup->irq); 4618 4619 phba->sli4_hba.curr_disp_cpu++; 4620 4621 /* display max number of CPUs keeping some margin */ 4622 if (phba->sli4_hba.curr_disp_cpu < 4623 phba->sli4_hba.num_present_cpu && 4624 (len >= (PAGE_SIZE - 64))) { 4625 len += snprintf(buf + len, PAGE_SIZE-len, "more...\n"); 4626 break; 4627 } 4628 } 4629 4630 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_present_cpu) 4631 phba->sli4_hba.curr_disp_cpu = 0; 4632 4633 return len; 4634 } 4635 4636 /** 4637 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 4638 * @dev: class device that is converted into a Scsi_host. 4639 * @attr: device attribute, not used. 4640 * @buf: one or more lpfc_polling_flags values. 4641 * @count: not used. 4642 * 4643 * Returns: 4644 * -EINVAL - Not implemented yet. 4645 **/ 4646 static ssize_t 4647 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 4648 const char *buf, size_t count) 4649 { 4650 int status = -EINVAL; 4651 return status; 4652 } 4653 4654 /* 4655 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 4656 # for the HBA. 4657 # 4658 # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2). 4659 # 0 - Do not affinitze IRQ vectors 4660 # 1 - Affintize HBA vectors with respect to each HBA 4661 # (start with CPU0 for each HBA) 4662 # 2 - Affintize HBA vectors with respect to the entire driver 4663 # (round robin thru all CPUs across all HBAs) 4664 */ 4665 static int lpfc_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 4666 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 4667 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 4668 "Defines how to map CPUs to IRQ vectors per HBA"); 4669 4670 /** 4671 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 4672 * @phba: lpfc_hba pointer. 4673 * @val: link speed value. 4674 * 4675 * Description: 4676 * If val is in a valid range [0-2], then affinitze the adapter's 4677 * MSIX vectors. 4678 * 4679 * Returns: 4680 * zero if val saved. 4681 * -EINVAL val out of range 4682 **/ 4683 static int 4684 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 4685 { 4686 if (phba->sli_rev != LPFC_SLI_REV4) { 4687 phba->cfg_fcp_cpu_map = 0; 4688 return 0; 4689 } 4690 4691 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 4692 phba->cfg_fcp_cpu_map = val; 4693 return 0; 4694 } 4695 4696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4697 "3326 lpfc_fcp_cpu_map: %d out of range, using " 4698 "default\n", val); 4699 phba->cfg_fcp_cpu_map = LPFC_DRIVER_CPU_MAP; 4700 4701 return 0; 4702 } 4703 4704 static DEVICE_ATTR(lpfc_fcp_cpu_map, S_IRUGO | S_IWUSR, 4705 lpfc_fcp_cpu_map_show, lpfc_fcp_cpu_map_store); 4706 4707 /* 4708 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 4709 # Value range is [2,3]. Default value is 3. 4710 */ 4711 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 4712 "Select Fibre Channel class of service for FCP sequences"); 4713 4714 /* 4715 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 4716 # is [0,1]. Default value is 0. 4717 */ 4718 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 4719 "Use ADISC on rediscovery to authenticate FCP devices"); 4720 4721 /* 4722 # lpfc_first_burst_size: First burst size to use on the NPorts 4723 # that support first burst. 4724 # Value range is [0,65536]. Default value is 0. 4725 */ 4726 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 4727 "First burst size for Targets that support first burst"); 4728 4729 /* 4730 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 4731 * When the driver is configured as an NVME target, this value is 4732 * communicated to the NVME initiator in the PRLI response. It is 4733 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 4734 * parameters are set and the target is sending the PRLI RSP. 4735 * Parameter supported on physical port only - no NPIV support. 4736 * Value range is [0,65536]. Default value is 0. 4737 */ 4738 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 4739 "NVME Target mode first burst size in 512B increments."); 4740 4741 /* 4742 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 4743 * For the Initiator (I), enabling this parameter means that an NVMET 4744 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 4745 * processed by the initiator for subsequent NVME FCP IO. For the target 4746 * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size 4747 * driver parameter as the target function's first burst size returned to the 4748 * initiator in the target's NVME PRLI response. Parameter supported on physical 4749 * port only - no NPIV support. 4750 * Value range is [0,1]. Default value is 0 (disabled). 4751 */ 4752 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 4753 "Enable First Burst feature on I and T functions."); 4754 4755 /* 4756 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 4757 # depth. Default value is 0. When the value of this parameter is zero the 4758 # SCSI command completion time is not used for controlling I/O queue depth. When 4759 # the parameter is set to a non-zero value, the I/O queue depth is controlled 4760 # to limit the I/O completion time to the parameter value. 4761 # The value is set in milliseconds. 4762 */ 4763 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 4764 "Use command completion time to control queue depth"); 4765 4766 lpfc_vport_param_show(max_scsicmpl_time); 4767 static int 4768 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 4769 { 4770 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4771 struct lpfc_nodelist *ndlp, *next_ndlp; 4772 4773 if (val == vport->cfg_max_scsicmpl_time) 4774 return 0; 4775 if ((val < 0) || (val > 60000)) 4776 return -EINVAL; 4777 vport->cfg_max_scsicmpl_time = val; 4778 4779 spin_lock_irq(shost->host_lock); 4780 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 4781 if (!NLP_CHK_NODE_ACT(ndlp)) 4782 continue; 4783 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 4784 continue; 4785 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 4786 } 4787 spin_unlock_irq(shost->host_lock); 4788 return 0; 4789 } 4790 lpfc_vport_param_store(max_scsicmpl_time); 4791 static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR, 4792 lpfc_max_scsicmpl_time_show, 4793 lpfc_max_scsicmpl_time_store); 4794 4795 /* 4796 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 4797 # range is [0,1]. Default value is 0. 4798 */ 4799 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 4800 4801 /* 4802 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 4803 * range is [0,1]. Default value is 0. 4804 * For [0], FCP commands are issued to Work Queues ina round robin fashion. 4805 * For [1], FCP commands are issued to a Work Queue associated with the 4806 * current CPU. 4807 * 4808 * LPFC_FCP_SCHED_ROUND_ROBIN == 0 4809 * LPFC_FCP_SCHED_BY_CPU == 1 4810 * 4811 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 4812 * affinity for FCP/NVME I/Os through Work Queues associated with the current 4813 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 4814 * through WQs will be used. 4815 */ 4816 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_ROUND_ROBIN, 4817 LPFC_FCP_SCHED_ROUND_ROBIN, 4818 LPFC_FCP_SCHED_BY_CPU, 4819 "Determine scheduling algorithm for " 4820 "issuing commands [0] - Round Robin, [1] - Current CPU"); 4821 4822 /* 4823 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 4824 # range is [0,1]. Default value is 0. 4825 # For [0], bus reset issues target reset to ALL devices 4826 # For [1], bus reset issues target reset to non-FCP2 devices 4827 */ 4828 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 4829 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 4830 4831 4832 /* 4833 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 4834 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 4835 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 4836 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 4837 # cr_delay is set to 0. 4838 */ 4839 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 4840 "interrupt response is generated"); 4841 4842 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 4843 "interrupt response is generated"); 4844 4845 /* 4846 # lpfc_multi_ring_support: Determines how many rings to spread available 4847 # cmd/rsp IOCB entries across. 4848 # Value range is [1,2]. Default value is 1. 4849 */ 4850 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 4851 "SLI rings to spread IOCB entries across"); 4852 4853 /* 4854 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 4855 # identifies what rctl value to configure the additional ring for. 4856 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 4857 */ 4858 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 4859 255, "Identifies RCTL for additional ring configuration"); 4860 4861 /* 4862 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 4863 # identifies what type value to configure the additional ring for. 4864 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 4865 */ 4866 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 4867 255, "Identifies TYPE for additional ring configuration"); 4868 4869 /* 4870 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 4871 # 0 = SmartSAN functionality disabled (default) 4872 # 1 = SmartSAN functionality enabled 4873 # This parameter will override the value of lpfc_fdmi_on module parameter. 4874 # Value range is [0,1]. Default value is 0. 4875 */ 4876 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 4877 4878 /* 4879 # lpfc_fdmi_on: Controls FDMI support. 4880 # 0 No FDMI support (default) 4881 # 1 Traditional FDMI support 4882 # Traditional FDMI support means the driver will assume FDMI-2 support; 4883 # however, if that fails, it will fallback to FDMI-1. 4884 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 4885 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 4886 # lpfc_fdmi_on. 4887 # Value range [0,1]. Default value is 0. 4888 */ 4889 LPFC_ATTR_R(fdmi_on, 0, 0, 1, "Enable FDMI support"); 4890 4891 /* 4892 # Specifies the maximum number of ELS cmds we can have outstanding (for 4893 # discovery). Value range is [1,64]. Default value = 32. 4894 */ 4895 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 4896 "during discovery"); 4897 4898 /* 4899 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 4900 # will be scanned by the SCSI midlayer when sequential scanning is 4901 # used; and is also the highest LUN ID allowed when the SCSI midlayer 4902 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 4903 # LUN ID limit, but the SCSI midlayer requires this field for the uses 4904 # above. The lpfc driver limits the default value to 255 for two reasons. 4905 # As it bounds the sequential scan loop, scanning for thousands of luns 4906 # on a target can take minutes of wall clock time. Additionally, 4907 # there are FC targets, such as JBODs, that only recognize 8-bits of 4908 # LUN ID. When they receive a value greater than 8 bits, they chop off 4909 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 4910 # and so on all as LUN ID 0. This causes the linux kernel, which sees 4911 # valid responses at each of the LUN IDs, to believe there are multiple 4912 # devices present, when in fact, there is only 1. 4913 # A customer that is aware of their target behaviors, and the results as 4914 # indicated above, is welcome to increase the lpfc_max_luns value. 4915 # As mentioned, this value is not used by the lpfc driver, only the 4916 # SCSI midlayer. 4917 # Value range is [0,65535]. Default value is 255. 4918 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 4919 */ 4920 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 4921 4922 /* 4923 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 4924 # Value range is [1,255], default value is 10. 4925 */ 4926 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 4927 "Milliseconds driver will wait between polling FCP ring"); 4928 4929 /* 4930 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 4931 # to complete in seconds. Value range is [5,180], default value is 60. 4932 */ 4933 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 4934 "Maximum time to wait for task management commands to complete"); 4935 /* 4936 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 4937 # support this feature 4938 # 0 = MSI disabled 4939 # 1 = MSI enabled 4940 # 2 = MSI-X enabled (default) 4941 # Value range is [0,2]. Default value is 2. 4942 */ 4943 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 4944 "MSI-X (2), if possible"); 4945 4946 /* 4947 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 4948 * 4949 * 0 = NVME OAS disabled 4950 * 1 = NVME OAS enabled 4951 * 4952 * Value range is [0,1]. Default value is 0. 4953 */ 4954 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 4955 "Use OAS bit on NVME IOs"); 4956 4957 /* 4958 * lpfc_fcp_io_channel: Set the number of FCP IO channels the driver 4959 * will advertise it supports to the SCSI layer. This also will map to 4960 * the number of WQs the driver will create. 4961 * 4962 * 0 = Configure the number of io channels to the number of active CPUs. 4963 * 1,32 = Manually specify how many io channels to use. 4964 * 4965 * Value range is [0,32]. Default value is 4. 4966 */ 4967 LPFC_ATTR_R(fcp_io_channel, 4968 LPFC_FCP_IO_CHAN_DEF, 4969 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 4970 "Set the number of FCP I/O channels"); 4971 4972 /* 4973 * lpfc_nvme_io_channel: Set the number of IO hardware queues the driver 4974 * will advertise it supports to the NVME layer. This also will map to 4975 * the number of WQs the driver will create. 4976 * 4977 * This module parameter is valid when lpfc_enable_fc4_type is set 4978 * to support NVME. 4979 * 4980 * The NVME Layer will try to create this many, plus 1 administrative 4981 * hardware queue. The administrative queue will always map to WQ 0 4982 * A hardware IO queue maps (qidx) to a specific driver WQ. 4983 * 4984 * 0 = Configure the number of io channels to the number of active CPUs. 4985 * 1,32 = Manually specify how many io channels to use. 4986 * 4987 * Value range is [0,32]. Default value is 0. 4988 */ 4989 LPFC_ATTR_R(nvme_io_channel, 4990 LPFC_NVME_IO_CHAN_DEF, 4991 LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, 4992 "Set the number of NVME I/O channels"); 4993 4994 /* 4995 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 4996 # 0 = HBA resets disabled 4997 # 1 = HBA resets enabled (default) 4998 # Value range is [0,1]. Default value is 1. 4999 */ 5000 LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver."); 5001 5002 /* 5003 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5004 # 0 = HBA Heartbeat disabled 5005 # 1 = HBA Heartbeat enabled (default) 5006 # Value range is [0,1]. Default value is 1. 5007 */ 5008 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5009 5010 /* 5011 # lpfc_EnableXLane: Enable Express Lane Feature 5012 # 0x0 Express Lane Feature disabled 5013 # 0x1 Express Lane Feature enabled 5014 # Value range is [0,1]. Default value is 0. 5015 */ 5016 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5017 5018 /* 5019 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5020 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5021 # Value range is [0x0,0x7f]. Default value is 0 5022 */ 5023 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5024 5025 /* 5026 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5027 # 0 = BlockGuard disabled (default) 5028 # 1 = BlockGuard enabled 5029 # Value range is [0,1]. Default value is 0. 5030 */ 5031 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5032 5033 /* 5034 # lpfc_fcp_look_ahead: Look ahead for completions in FCP start routine 5035 # 0 = disabled (default) 5036 # 1 = enabled 5037 # Value range is [0,1]. Default value is 0. 5038 # 5039 # This feature in under investigation and may be supported in the future. 5040 */ 5041 unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF; 5042 5043 /* 5044 # lpfc_prot_mask: i 5045 # - Bit mask of host protection capabilities used to register with the 5046 # SCSI mid-layer 5047 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5048 # - Allows you to ultimately specify which profiles to use 5049 # - Default will result in registering capabilities for all profiles. 5050 # - SHOST_DIF_TYPE1_PROTECTION 1 5051 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5052 # - SHOST_DIX_TYPE0_PROTECTION 8 5053 # HBA supports DIX Type 0: Host to HBA protection only 5054 # - SHOST_DIX_TYPE1_PROTECTION 16 5055 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5056 # 5057 */ 5058 LPFC_ATTR(prot_mask, 5059 (SHOST_DIF_TYPE1_PROTECTION | 5060 SHOST_DIX_TYPE0_PROTECTION | 5061 SHOST_DIX_TYPE1_PROTECTION), 5062 0, 5063 (SHOST_DIF_TYPE1_PROTECTION | 5064 SHOST_DIX_TYPE0_PROTECTION | 5065 SHOST_DIX_TYPE1_PROTECTION), 5066 "T10-DIF host protection capabilities mask"); 5067 5068 /* 5069 # lpfc_prot_guard: i 5070 # - Bit mask of protection guard types to register with the SCSI mid-layer 5071 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5072 # - Allows you to ultimately specify which profiles to use 5073 # - Default will result in registering capabilities for all guard types 5074 # 5075 */ 5076 LPFC_ATTR(prot_guard, 5077 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5078 "T10-DIF host protection guard type"); 5079 5080 /* 5081 * Delay initial NPort discovery when Clean Address bit is cleared in 5082 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5083 * This parameter can have value 0 or 1. 5084 * When this parameter is set to 0, no delay is added to the initial 5085 * discovery. 5086 * When this parameter is set to non-zero value, initial Nport discovery is 5087 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5088 * accept and FCID/Fabric name/Fabric portname is changed. 5089 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5090 * when Clean Address bit is cleared in FLOGI/FDISC 5091 * accept and FCID/Fabric name/Fabric portname is changed. 5092 * Default value is 0. 5093 */ 5094 LPFC_ATTR(delay_discovery, 0, 0, 1, 5095 "Delay NPort discovery when Clean Address bit is cleared."); 5096 5097 /* 5098 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5099 * This value can be set to values between 64 and 4096. The default value is 5100 * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer 5101 * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5102 * Because of the additional overhead involved in setting up T10-DIF, 5103 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5104 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5105 */ 5106 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT, 5107 LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count"); 5108 5109 /* 5110 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5111 * 0 = MDS Diagnostics disabled (default) 5112 * 1 = MDS Diagnostics enabled 5113 * Value range is [0,1]. Default value is 0. 5114 */ 5115 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5116 5117 struct device_attribute *lpfc_hba_attrs[] = { 5118 &dev_attr_nvme_info, 5119 &dev_attr_bg_info, 5120 &dev_attr_bg_guard_err, 5121 &dev_attr_bg_apptag_err, 5122 &dev_attr_bg_reftag_err, 5123 &dev_attr_info, 5124 &dev_attr_serialnum, 5125 &dev_attr_modeldesc, 5126 &dev_attr_modelname, 5127 &dev_attr_programtype, 5128 &dev_attr_portnum, 5129 &dev_attr_fwrev, 5130 &dev_attr_hdw, 5131 &dev_attr_option_rom_version, 5132 &dev_attr_link_state, 5133 &dev_attr_num_discovered_ports, 5134 &dev_attr_menlo_mgmt_mode, 5135 &dev_attr_lpfc_drvr_version, 5136 &dev_attr_lpfc_enable_fip, 5137 &dev_attr_lpfc_temp_sensor, 5138 &dev_attr_lpfc_log_verbose, 5139 &dev_attr_lpfc_lun_queue_depth, 5140 &dev_attr_lpfc_tgt_queue_depth, 5141 &dev_attr_lpfc_hba_queue_depth, 5142 &dev_attr_lpfc_peer_port_login, 5143 &dev_attr_lpfc_nodev_tmo, 5144 &dev_attr_lpfc_devloss_tmo, 5145 &dev_attr_lpfc_enable_fc4_type, 5146 &dev_attr_lpfc_xri_split, 5147 &dev_attr_lpfc_fcp_class, 5148 &dev_attr_lpfc_use_adisc, 5149 &dev_attr_lpfc_first_burst_size, 5150 &dev_attr_lpfc_ack0, 5151 &dev_attr_lpfc_topology, 5152 &dev_attr_lpfc_scan_down, 5153 &dev_attr_lpfc_link_speed, 5154 &dev_attr_lpfc_fcp_io_sched, 5155 &dev_attr_lpfc_fcp2_no_tgt_reset, 5156 &dev_attr_lpfc_cr_delay, 5157 &dev_attr_lpfc_cr_count, 5158 &dev_attr_lpfc_multi_ring_support, 5159 &dev_attr_lpfc_multi_ring_rctl, 5160 &dev_attr_lpfc_multi_ring_type, 5161 &dev_attr_lpfc_fdmi_on, 5162 &dev_attr_lpfc_enable_SmartSAN, 5163 &dev_attr_lpfc_max_luns, 5164 &dev_attr_lpfc_enable_npiv, 5165 &dev_attr_lpfc_fcf_failover_policy, 5166 &dev_attr_lpfc_enable_rrq, 5167 &dev_attr_nport_evt_cnt, 5168 &dev_attr_board_mode, 5169 &dev_attr_max_vpi, 5170 &dev_attr_used_vpi, 5171 &dev_attr_max_rpi, 5172 &dev_attr_used_rpi, 5173 &dev_attr_max_xri, 5174 &dev_attr_used_xri, 5175 &dev_attr_npiv_info, 5176 &dev_attr_issue_reset, 5177 &dev_attr_lpfc_poll, 5178 &dev_attr_lpfc_poll_tmo, 5179 &dev_attr_lpfc_task_mgmt_tmo, 5180 &dev_attr_lpfc_use_msi, 5181 &dev_attr_lpfc_nvme_oas, 5182 &dev_attr_lpfc_auto_imax, 5183 &dev_attr_lpfc_fcp_imax, 5184 &dev_attr_lpfc_fcp_cpu_map, 5185 &dev_attr_lpfc_fcp_io_channel, 5186 &dev_attr_lpfc_suppress_rsp, 5187 &dev_attr_lpfc_nvme_io_channel, 5188 &dev_attr_lpfc_nvmet_mrq, 5189 &dev_attr_lpfc_nvme_enable_fb, 5190 &dev_attr_lpfc_nvmet_fb_size, 5191 &dev_attr_lpfc_enable_bg, 5192 &dev_attr_lpfc_soft_wwnn, 5193 &dev_attr_lpfc_soft_wwpn, 5194 &dev_attr_lpfc_soft_wwn_enable, 5195 &dev_attr_lpfc_enable_hba_reset, 5196 &dev_attr_lpfc_enable_hba_heartbeat, 5197 &dev_attr_lpfc_EnableXLane, 5198 &dev_attr_lpfc_XLanePriority, 5199 &dev_attr_lpfc_xlane_lun, 5200 &dev_attr_lpfc_xlane_tgt, 5201 &dev_attr_lpfc_xlane_vpt, 5202 &dev_attr_lpfc_xlane_lun_state, 5203 &dev_attr_lpfc_xlane_lun_status, 5204 &dev_attr_lpfc_xlane_priority, 5205 &dev_attr_lpfc_sg_seg_cnt, 5206 &dev_attr_lpfc_max_scsicmpl_time, 5207 &dev_attr_lpfc_stat_data_ctrl, 5208 &dev_attr_lpfc_aer_support, 5209 &dev_attr_lpfc_aer_state_cleanup, 5210 &dev_attr_lpfc_sriov_nr_virtfn, 5211 &dev_attr_lpfc_req_fw_upgrade, 5212 &dev_attr_lpfc_suppress_link_up, 5213 &dev_attr_lpfc_iocb_cnt, 5214 &dev_attr_iocb_hw, 5215 &dev_attr_txq_hw, 5216 &dev_attr_txcmplq_hw, 5217 &dev_attr_lpfc_fips_level, 5218 &dev_attr_lpfc_fips_rev, 5219 &dev_attr_lpfc_dss, 5220 &dev_attr_lpfc_sriov_hw_max_virtfn, 5221 &dev_attr_protocol, 5222 &dev_attr_lpfc_xlane_supported, 5223 &dev_attr_lpfc_enable_mds_diags, 5224 NULL, 5225 }; 5226 5227 struct device_attribute *lpfc_vport_attrs[] = { 5228 &dev_attr_info, 5229 &dev_attr_link_state, 5230 &dev_attr_num_discovered_ports, 5231 &dev_attr_lpfc_drvr_version, 5232 &dev_attr_lpfc_log_verbose, 5233 &dev_attr_lpfc_lun_queue_depth, 5234 &dev_attr_lpfc_tgt_queue_depth, 5235 &dev_attr_lpfc_nodev_tmo, 5236 &dev_attr_lpfc_devloss_tmo, 5237 &dev_attr_lpfc_hba_queue_depth, 5238 &dev_attr_lpfc_peer_port_login, 5239 &dev_attr_lpfc_restrict_login, 5240 &dev_attr_lpfc_fcp_class, 5241 &dev_attr_lpfc_use_adisc, 5242 &dev_attr_lpfc_first_burst_size, 5243 &dev_attr_lpfc_max_luns, 5244 &dev_attr_nport_evt_cnt, 5245 &dev_attr_npiv_info, 5246 &dev_attr_lpfc_enable_da_id, 5247 &dev_attr_lpfc_max_scsicmpl_time, 5248 &dev_attr_lpfc_stat_data_ctrl, 5249 &dev_attr_lpfc_static_vport, 5250 &dev_attr_lpfc_fips_level, 5251 &dev_attr_lpfc_fips_rev, 5252 NULL, 5253 }; 5254 5255 /** 5256 * sysfs_ctlreg_write - Write method for writing to ctlreg 5257 * @filp: open sysfs file 5258 * @kobj: kernel kobject that contains the kernel class device. 5259 * @bin_attr: kernel attributes passed to us. 5260 * @buf: contains the data to be written to the adapter IOREG space. 5261 * @off: offset into buffer to beginning of data. 5262 * @count: bytes to transfer. 5263 * 5264 * Description: 5265 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5266 * Uses the adapter io control registers to send buf contents to the adapter. 5267 * 5268 * Returns: 5269 * -ERANGE off and count combo out of range 5270 * -EINVAL off, count or buff address invalid 5271 * -EPERM adapter is offline 5272 * value of count, buf contents written 5273 **/ 5274 static ssize_t 5275 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 5276 struct bin_attribute *bin_attr, 5277 char *buf, loff_t off, size_t count) 5278 { 5279 size_t buf_off; 5280 struct device *dev = container_of(kobj, struct device, kobj); 5281 struct Scsi_Host *shost = class_to_shost(dev); 5282 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5283 struct lpfc_hba *phba = vport->phba; 5284 5285 if (phba->sli_rev >= LPFC_SLI_REV4) 5286 return -EPERM; 5287 5288 if ((off + count) > FF_REG_AREA_SIZE) 5289 return -ERANGE; 5290 5291 if (count <= LPFC_REG_WRITE_KEY_SIZE) 5292 return 0; 5293 5294 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5295 return -EINVAL; 5296 5297 /* This is to protect HBA registers from accidental writes. */ 5298 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 5299 return -EINVAL; 5300 5301 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 5302 return -EPERM; 5303 5304 spin_lock_irq(&phba->hbalock); 5305 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 5306 buf_off += sizeof(uint32_t)) 5307 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 5308 phba->ctrl_regs_memmap_p + off + buf_off); 5309 5310 spin_unlock_irq(&phba->hbalock); 5311 5312 return count; 5313 } 5314 5315 /** 5316 * sysfs_ctlreg_read - Read method for reading from ctlreg 5317 * @filp: open sysfs file 5318 * @kobj: kernel kobject that contains the kernel class device. 5319 * @bin_attr: kernel attributes passed to us. 5320 * @buf: if successful contains the data from the adapter IOREG space. 5321 * @off: offset into buffer to beginning of data. 5322 * @count: bytes to transfer. 5323 * 5324 * Description: 5325 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 5326 * Uses the adapter io control registers to read data into buf. 5327 * 5328 * Returns: 5329 * -ERANGE off and count combo out of range 5330 * -EINVAL off, count or buff address invalid 5331 * value of count, buf contents read 5332 **/ 5333 static ssize_t 5334 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 5335 struct bin_attribute *bin_attr, 5336 char *buf, loff_t off, size_t count) 5337 { 5338 size_t buf_off; 5339 uint32_t * tmp_ptr; 5340 struct device *dev = container_of(kobj, struct device, kobj); 5341 struct Scsi_Host *shost = class_to_shost(dev); 5342 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5343 struct lpfc_hba *phba = vport->phba; 5344 5345 if (phba->sli_rev >= LPFC_SLI_REV4) 5346 return -EPERM; 5347 5348 if (off > FF_REG_AREA_SIZE) 5349 return -ERANGE; 5350 5351 if ((off + count) > FF_REG_AREA_SIZE) 5352 count = FF_REG_AREA_SIZE - off; 5353 5354 if (count == 0) return 0; 5355 5356 if (off % 4 || count % 4 || (unsigned long)buf % 4) 5357 return -EINVAL; 5358 5359 spin_lock_irq(&phba->hbalock); 5360 5361 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 5362 tmp_ptr = (uint32_t *)(buf + buf_off); 5363 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 5364 } 5365 5366 spin_unlock_irq(&phba->hbalock); 5367 5368 return count; 5369 } 5370 5371 static struct bin_attribute sysfs_ctlreg_attr = { 5372 .attr = { 5373 .name = "ctlreg", 5374 .mode = S_IRUSR | S_IWUSR, 5375 }, 5376 .size = 256, 5377 .read = sysfs_ctlreg_read, 5378 .write = sysfs_ctlreg_write, 5379 }; 5380 5381 /** 5382 * sysfs_mbox_write - Write method for writing information via mbox 5383 * @filp: open sysfs file 5384 * @kobj: kernel kobject that contains the kernel class device. 5385 * @bin_attr: kernel attributes passed to us. 5386 * @buf: contains the data to be written to sysfs mbox. 5387 * @off: offset into buffer to beginning of data. 5388 * @count: bytes to transfer. 5389 * 5390 * Description: 5391 * Deprecated function. All mailbox access from user space is performed via the 5392 * bsg interface. 5393 * 5394 * Returns: 5395 * -EPERM operation not permitted 5396 **/ 5397 static ssize_t 5398 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 5399 struct bin_attribute *bin_attr, 5400 char *buf, loff_t off, size_t count) 5401 { 5402 return -EPERM; 5403 } 5404 5405 /** 5406 * sysfs_mbox_read - Read method for reading information via mbox 5407 * @filp: open sysfs file 5408 * @kobj: kernel kobject that contains the kernel class device. 5409 * @bin_attr: kernel attributes passed to us. 5410 * @buf: contains the data to be read from sysfs mbox. 5411 * @off: offset into buffer to beginning of data. 5412 * @count: bytes to transfer. 5413 * 5414 * Description: 5415 * Deprecated function. All mailbox access from user space is performed via the 5416 * bsg interface. 5417 * 5418 * Returns: 5419 * -EPERM operation not permitted 5420 **/ 5421 static ssize_t 5422 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 5423 struct bin_attribute *bin_attr, 5424 char *buf, loff_t off, size_t count) 5425 { 5426 return -EPERM; 5427 } 5428 5429 static struct bin_attribute sysfs_mbox_attr = { 5430 .attr = { 5431 .name = "mbox", 5432 .mode = S_IRUSR | S_IWUSR, 5433 }, 5434 .size = MAILBOX_SYSFS_MAX, 5435 .read = sysfs_mbox_read, 5436 .write = sysfs_mbox_write, 5437 }; 5438 5439 /** 5440 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 5441 * @vport: address of lpfc vport structure. 5442 * 5443 * Return codes: 5444 * zero on success 5445 * error return code from sysfs_create_bin_file() 5446 **/ 5447 int 5448 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 5449 { 5450 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5451 int error; 5452 5453 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5454 &sysfs_drvr_stat_data_attr); 5455 5456 /* Virtual ports do not need ctrl_reg and mbox */ 5457 if (error || vport->port_type == LPFC_NPIV_PORT) 5458 goto out; 5459 5460 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5461 &sysfs_ctlreg_attr); 5462 if (error) 5463 goto out_remove_stat_attr; 5464 5465 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 5466 &sysfs_mbox_attr); 5467 if (error) 5468 goto out_remove_ctlreg_attr; 5469 5470 return 0; 5471 out_remove_ctlreg_attr: 5472 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 5473 out_remove_stat_attr: 5474 sysfs_remove_bin_file(&shost->shost_dev.kobj, 5475 &sysfs_drvr_stat_data_attr); 5476 out: 5477 return error; 5478 } 5479 5480 /** 5481 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 5482 * @vport: address of lpfc vport structure. 5483 **/ 5484 void 5485 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 5486 { 5487 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5488 sysfs_remove_bin_file(&shost->shost_dev.kobj, 5489 &sysfs_drvr_stat_data_attr); 5490 /* Virtual ports do not need ctrl_reg and mbox */ 5491 if (vport->port_type == LPFC_NPIV_PORT) 5492 return; 5493 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 5494 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 5495 } 5496 5497 /* 5498 * Dynamic FC Host Attributes Support 5499 */ 5500 5501 /** 5502 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 5503 * @shost: kernel scsi host pointer. 5504 **/ 5505 static void 5506 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 5507 { 5508 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5509 5510 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 5511 sizeof fc_host_symbolic_name(shost)); 5512 } 5513 5514 /** 5515 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 5516 * @shost: kernel scsi host pointer. 5517 **/ 5518 static void 5519 lpfc_get_host_port_id(struct Scsi_Host *shost) 5520 { 5521 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5522 5523 /* note: fc_myDID already in cpu endianness */ 5524 fc_host_port_id(shost) = vport->fc_myDID; 5525 } 5526 5527 /** 5528 * lpfc_get_host_port_type - Set the value of the scsi host port type 5529 * @shost: kernel scsi host pointer. 5530 **/ 5531 static void 5532 lpfc_get_host_port_type(struct Scsi_Host *shost) 5533 { 5534 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5535 struct lpfc_hba *phba = vport->phba; 5536 5537 spin_lock_irq(shost->host_lock); 5538 5539 if (vport->port_type == LPFC_NPIV_PORT) { 5540 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 5541 } else if (lpfc_is_link_up(phba)) { 5542 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 5543 if (vport->fc_flag & FC_PUBLIC_LOOP) 5544 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 5545 else 5546 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 5547 } else { 5548 if (vport->fc_flag & FC_FABRIC) 5549 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 5550 else 5551 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 5552 } 5553 } else 5554 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 5555 5556 spin_unlock_irq(shost->host_lock); 5557 } 5558 5559 /** 5560 * lpfc_get_host_port_state - Set the value of the scsi host port state 5561 * @shost: kernel scsi host pointer. 5562 **/ 5563 static void 5564 lpfc_get_host_port_state(struct Scsi_Host *shost) 5565 { 5566 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5567 struct lpfc_hba *phba = vport->phba; 5568 5569 spin_lock_irq(shost->host_lock); 5570 5571 if (vport->fc_flag & FC_OFFLINE_MODE) 5572 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 5573 else { 5574 switch (phba->link_state) { 5575 case LPFC_LINK_UNKNOWN: 5576 case LPFC_LINK_DOWN: 5577 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 5578 break; 5579 case LPFC_LINK_UP: 5580 case LPFC_CLEAR_LA: 5581 case LPFC_HBA_READY: 5582 /* Links up, reports port state accordingly */ 5583 if (vport->port_state < LPFC_VPORT_READY) 5584 fc_host_port_state(shost) = 5585 FC_PORTSTATE_BYPASSED; 5586 else 5587 fc_host_port_state(shost) = 5588 FC_PORTSTATE_ONLINE; 5589 break; 5590 case LPFC_HBA_ERROR: 5591 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 5592 break; 5593 default: 5594 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 5595 break; 5596 } 5597 } 5598 5599 spin_unlock_irq(shost->host_lock); 5600 } 5601 5602 /** 5603 * lpfc_get_host_speed - Set the value of the scsi host speed 5604 * @shost: kernel scsi host pointer. 5605 **/ 5606 static void 5607 lpfc_get_host_speed(struct Scsi_Host *shost) 5608 { 5609 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5610 struct lpfc_hba *phba = vport->phba; 5611 5612 spin_lock_irq(shost->host_lock); 5613 5614 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 5615 switch(phba->fc_linkspeed) { 5616 case LPFC_LINK_SPEED_1GHZ: 5617 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 5618 break; 5619 case LPFC_LINK_SPEED_2GHZ: 5620 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 5621 break; 5622 case LPFC_LINK_SPEED_4GHZ: 5623 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 5624 break; 5625 case LPFC_LINK_SPEED_8GHZ: 5626 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 5627 break; 5628 case LPFC_LINK_SPEED_10GHZ: 5629 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 5630 break; 5631 case LPFC_LINK_SPEED_16GHZ: 5632 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 5633 break; 5634 case LPFC_LINK_SPEED_32GHZ: 5635 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 5636 break; 5637 default: 5638 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 5639 break; 5640 } 5641 } else 5642 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 5643 5644 spin_unlock_irq(shost->host_lock); 5645 } 5646 5647 /** 5648 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 5649 * @shost: kernel scsi host pointer. 5650 **/ 5651 static void 5652 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 5653 { 5654 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5655 struct lpfc_hba *phba = vport->phba; 5656 u64 node_name; 5657 5658 spin_lock_irq(shost->host_lock); 5659 5660 if ((vport->port_state > LPFC_FLOGI) && 5661 ((vport->fc_flag & FC_FABRIC) || 5662 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 5663 (vport->fc_flag & FC_PUBLIC_LOOP)))) 5664 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 5665 else 5666 /* fabric is local port if there is no F/FL_Port */ 5667 node_name = 0; 5668 5669 spin_unlock_irq(shost->host_lock); 5670 5671 fc_host_fabric_name(shost) = node_name; 5672 } 5673 5674 /** 5675 * lpfc_get_stats - Return statistical information about the adapter 5676 * @shost: kernel scsi host pointer. 5677 * 5678 * Notes: 5679 * NULL on error for link down, no mbox pool, sli2 active, 5680 * management not allowed, memory allocation error, or mbox error. 5681 * 5682 * Returns: 5683 * NULL for error 5684 * address of the adapter host statistics 5685 **/ 5686 static struct fc_host_statistics * 5687 lpfc_get_stats(struct Scsi_Host *shost) 5688 { 5689 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5690 struct lpfc_hba *phba = vport->phba; 5691 struct lpfc_sli *psli = &phba->sli; 5692 struct fc_host_statistics *hs = &phba->link_stats; 5693 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 5694 LPFC_MBOXQ_t *pmboxq; 5695 MAILBOX_t *pmb; 5696 unsigned long seconds; 5697 int rc = 0; 5698 5699 /* 5700 * prevent udev from issuing mailbox commands until the port is 5701 * configured. 5702 */ 5703 if (phba->link_state < LPFC_LINK_DOWN || 5704 !phba->mbox_mem_pool || 5705 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 5706 return NULL; 5707 5708 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 5709 return NULL; 5710 5711 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5712 if (!pmboxq) 5713 return NULL; 5714 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 5715 5716 pmb = &pmboxq->u.mb; 5717 pmb->mbxCommand = MBX_READ_STATUS; 5718 pmb->mbxOwner = OWN_HOST; 5719 pmboxq->context1 = NULL; 5720 pmboxq->vport = vport; 5721 5722 if (vport->fc_flag & FC_OFFLINE_MODE) 5723 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5724 else 5725 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5726 5727 if (rc != MBX_SUCCESS) { 5728 if (rc != MBX_TIMEOUT) 5729 mempool_free(pmboxq, phba->mbox_mem_pool); 5730 return NULL; 5731 } 5732 5733 memset(hs, 0, sizeof (struct fc_host_statistics)); 5734 5735 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 5736 /* 5737 * The MBX_READ_STATUS returns tx_k_bytes which has to 5738 * converted to words 5739 */ 5740 hs->tx_words = (uint64_t) 5741 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 5742 * (uint64_t)256); 5743 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 5744 hs->rx_words = (uint64_t) 5745 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 5746 * (uint64_t)256); 5747 5748 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 5749 pmb->mbxCommand = MBX_READ_LNK_STAT; 5750 pmb->mbxOwner = OWN_HOST; 5751 pmboxq->context1 = NULL; 5752 pmboxq->vport = vport; 5753 5754 if (vport->fc_flag & FC_OFFLINE_MODE) 5755 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5756 else 5757 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5758 5759 if (rc != MBX_SUCCESS) { 5760 if (rc != MBX_TIMEOUT) 5761 mempool_free(pmboxq, phba->mbox_mem_pool); 5762 return NULL; 5763 } 5764 5765 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 5766 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 5767 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 5768 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 5769 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 5770 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 5771 hs->error_frames = pmb->un.varRdLnk.crcCnt; 5772 5773 hs->link_failure_count -= lso->link_failure_count; 5774 hs->loss_of_sync_count -= lso->loss_of_sync_count; 5775 hs->loss_of_signal_count -= lso->loss_of_signal_count; 5776 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 5777 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 5778 hs->invalid_crc_count -= lso->invalid_crc_count; 5779 hs->error_frames -= lso->error_frames; 5780 5781 if (phba->hba_flag & HBA_FCOE_MODE) { 5782 hs->lip_count = -1; 5783 hs->nos_count = (phba->link_events >> 1); 5784 hs->nos_count -= lso->link_events; 5785 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 5786 hs->lip_count = (phba->fc_eventTag >> 1); 5787 hs->lip_count -= lso->link_events; 5788 hs->nos_count = -1; 5789 } else { 5790 hs->lip_count = -1; 5791 hs->nos_count = (phba->fc_eventTag >> 1); 5792 hs->nos_count -= lso->link_events; 5793 } 5794 5795 hs->dumped_frames = -1; 5796 5797 seconds = get_seconds(); 5798 if (seconds < psli->stats_start) 5799 hs->seconds_since_last_reset = seconds + 5800 ((unsigned long)-1 - psli->stats_start); 5801 else 5802 hs->seconds_since_last_reset = seconds - psli->stats_start; 5803 5804 mempool_free(pmboxq, phba->mbox_mem_pool); 5805 5806 return hs; 5807 } 5808 5809 /** 5810 * lpfc_reset_stats - Copy the adapter link stats information 5811 * @shost: kernel scsi host pointer. 5812 **/ 5813 static void 5814 lpfc_reset_stats(struct Scsi_Host *shost) 5815 { 5816 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5817 struct lpfc_hba *phba = vport->phba; 5818 struct lpfc_sli *psli = &phba->sli; 5819 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 5820 LPFC_MBOXQ_t *pmboxq; 5821 MAILBOX_t *pmb; 5822 int rc = 0; 5823 5824 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 5825 return; 5826 5827 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5828 if (!pmboxq) 5829 return; 5830 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 5831 5832 pmb = &pmboxq->u.mb; 5833 pmb->mbxCommand = MBX_READ_STATUS; 5834 pmb->mbxOwner = OWN_HOST; 5835 pmb->un.varWords[0] = 0x1; /* reset request */ 5836 pmboxq->context1 = NULL; 5837 pmboxq->vport = vport; 5838 5839 if ((vport->fc_flag & FC_OFFLINE_MODE) || 5840 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 5841 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5842 else 5843 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5844 5845 if (rc != MBX_SUCCESS) { 5846 if (rc != MBX_TIMEOUT) 5847 mempool_free(pmboxq, phba->mbox_mem_pool); 5848 return; 5849 } 5850 5851 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 5852 pmb->mbxCommand = MBX_READ_LNK_STAT; 5853 pmb->mbxOwner = OWN_HOST; 5854 pmboxq->context1 = NULL; 5855 pmboxq->vport = vport; 5856 5857 if ((vport->fc_flag & FC_OFFLINE_MODE) || 5858 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 5859 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 5860 else 5861 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 5862 5863 if (rc != MBX_SUCCESS) { 5864 if (rc != MBX_TIMEOUT) 5865 mempool_free( pmboxq, phba->mbox_mem_pool); 5866 return; 5867 } 5868 5869 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 5870 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 5871 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 5872 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 5873 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 5874 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 5875 lso->error_frames = pmb->un.varRdLnk.crcCnt; 5876 if (phba->hba_flag & HBA_FCOE_MODE) 5877 lso->link_events = (phba->link_events >> 1); 5878 else 5879 lso->link_events = (phba->fc_eventTag >> 1); 5880 5881 psli->stats_start = get_seconds(); 5882 5883 mempool_free(pmboxq, phba->mbox_mem_pool); 5884 5885 return; 5886 } 5887 5888 /* 5889 * The LPFC driver treats linkdown handling as target loss events so there 5890 * are no sysfs handlers for link_down_tmo. 5891 */ 5892 5893 /** 5894 * lpfc_get_node_by_target - Return the nodelist for a target 5895 * @starget: kernel scsi target pointer. 5896 * 5897 * Returns: 5898 * address of the node list if found 5899 * NULL target not found 5900 **/ 5901 static struct lpfc_nodelist * 5902 lpfc_get_node_by_target(struct scsi_target *starget) 5903 { 5904 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 5905 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 5906 struct lpfc_nodelist *ndlp; 5907 5908 spin_lock_irq(shost->host_lock); 5909 /* Search for this, mapped, target ID */ 5910 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 5911 if (NLP_CHK_NODE_ACT(ndlp) && 5912 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 5913 starget->id == ndlp->nlp_sid) { 5914 spin_unlock_irq(shost->host_lock); 5915 return ndlp; 5916 } 5917 } 5918 spin_unlock_irq(shost->host_lock); 5919 return NULL; 5920 } 5921 5922 /** 5923 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 5924 * @starget: kernel scsi target pointer. 5925 **/ 5926 static void 5927 lpfc_get_starget_port_id(struct scsi_target *starget) 5928 { 5929 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5930 5931 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 5932 } 5933 5934 /** 5935 * lpfc_get_starget_node_name - Set the target node name 5936 * @starget: kernel scsi target pointer. 5937 * 5938 * Description: Set the target node name to the ndlp node name wwn or zero. 5939 **/ 5940 static void 5941 lpfc_get_starget_node_name(struct scsi_target *starget) 5942 { 5943 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5944 5945 fc_starget_node_name(starget) = 5946 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 5947 } 5948 5949 /** 5950 * lpfc_get_starget_port_name - Set the target port name 5951 * @starget: kernel scsi target pointer. 5952 * 5953 * Description: set the target port name to the ndlp port name wwn or zero. 5954 **/ 5955 static void 5956 lpfc_get_starget_port_name(struct scsi_target *starget) 5957 { 5958 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 5959 5960 fc_starget_port_name(starget) = 5961 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 5962 } 5963 5964 /** 5965 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 5966 * @rport: fc rport address. 5967 * @timeout: new value for dev loss tmo. 5968 * 5969 * Description: 5970 * If timeout is non zero set the dev_loss_tmo to timeout, else set 5971 * dev_loss_tmo to one. 5972 **/ 5973 static void 5974 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 5975 { 5976 if (timeout) 5977 rport->dev_loss_tmo = timeout; 5978 else 5979 rport->dev_loss_tmo = 1; 5980 } 5981 5982 /** 5983 * lpfc_rport_show_function - Return rport target information 5984 * 5985 * Description: 5986 * Macro that uses field to generate a function with the name lpfc_show_rport_ 5987 * 5988 * lpfc_show_rport_##field: returns the bytes formatted in buf 5989 * @cdev: class converted to an fc_rport. 5990 * @buf: on return contains the target_field or zero. 5991 * 5992 * Returns: size of formatted string. 5993 **/ 5994 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 5995 static ssize_t \ 5996 lpfc_show_rport_##field (struct device *dev, \ 5997 struct device_attribute *attr, \ 5998 char *buf) \ 5999 { \ 6000 struct fc_rport *rport = transport_class_to_rport(dev); \ 6001 struct lpfc_rport_data *rdata = rport->hostdata; \ 6002 return snprintf(buf, sz, format_string, \ 6003 (rdata->target) ? cast rdata->target->field : 0); \ 6004 } 6005 6006 #define lpfc_rport_rd_attr(field, format_string, sz) \ 6007 lpfc_rport_show_function(field, format_string, sz, ) \ 6008 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6009 6010 /** 6011 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 6012 * @fc_vport: The fc_vport who's symbolic name has been changed. 6013 * 6014 * Description: 6015 * This function is called by the transport after the @fc_vport's symbolic name 6016 * has been changed. This function re-registers the symbolic name with the 6017 * switch to propagate the change into the fabric if the vport is active. 6018 **/ 6019 static void 6020 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 6021 { 6022 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 6023 6024 if (vport->port_state == LPFC_VPORT_READY) 6025 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 6026 } 6027 6028 /** 6029 * lpfc_hba_log_verbose_init - Set hba's log verbose level 6030 * @phba: Pointer to lpfc_hba struct. 6031 * 6032 * This function is called by the lpfc_get_cfgparam() routine to set the 6033 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 6034 * log message according to the module's lpfc_log_verbose parameter setting 6035 * before hba port or vport created. 6036 **/ 6037 static void 6038 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 6039 { 6040 phba->cfg_log_verbose = verbose; 6041 } 6042 6043 struct fc_function_template lpfc_transport_functions = { 6044 /* fixed attributes the driver supports */ 6045 .show_host_node_name = 1, 6046 .show_host_port_name = 1, 6047 .show_host_supported_classes = 1, 6048 .show_host_supported_fc4s = 1, 6049 .show_host_supported_speeds = 1, 6050 .show_host_maxframe_size = 1, 6051 6052 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6053 .show_host_symbolic_name = 1, 6054 6055 /* dynamic attributes the driver supports */ 6056 .get_host_port_id = lpfc_get_host_port_id, 6057 .show_host_port_id = 1, 6058 6059 .get_host_port_type = lpfc_get_host_port_type, 6060 .show_host_port_type = 1, 6061 6062 .get_host_port_state = lpfc_get_host_port_state, 6063 .show_host_port_state = 1, 6064 6065 /* active_fc4s is shown but doesn't change (thus no get function) */ 6066 .show_host_active_fc4s = 1, 6067 6068 .get_host_speed = lpfc_get_host_speed, 6069 .show_host_speed = 1, 6070 6071 .get_host_fabric_name = lpfc_get_host_fabric_name, 6072 .show_host_fabric_name = 1, 6073 6074 /* 6075 * The LPFC driver treats linkdown handling as target loss events 6076 * so there are no sysfs handlers for link_down_tmo. 6077 */ 6078 6079 .get_fc_host_stats = lpfc_get_stats, 6080 .reset_fc_host_stats = lpfc_reset_stats, 6081 6082 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6083 .show_rport_maxframe_size = 1, 6084 .show_rport_supported_classes = 1, 6085 6086 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6087 .show_rport_dev_loss_tmo = 1, 6088 6089 .get_starget_port_id = lpfc_get_starget_port_id, 6090 .show_starget_port_id = 1, 6091 6092 .get_starget_node_name = lpfc_get_starget_node_name, 6093 .show_starget_node_name = 1, 6094 6095 .get_starget_port_name = lpfc_get_starget_port_name, 6096 .show_starget_port_name = 1, 6097 6098 .issue_fc_host_lip = lpfc_issue_lip, 6099 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6100 .terminate_rport_io = lpfc_terminate_rport_io, 6101 6102 .dd_fcvport_size = sizeof(struct lpfc_vport *), 6103 6104 .vport_disable = lpfc_vport_disable, 6105 6106 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6107 6108 .bsg_request = lpfc_bsg_request, 6109 .bsg_timeout = lpfc_bsg_timeout, 6110 }; 6111 6112 struct fc_function_template lpfc_vport_transport_functions = { 6113 /* fixed attributes the driver supports */ 6114 .show_host_node_name = 1, 6115 .show_host_port_name = 1, 6116 .show_host_supported_classes = 1, 6117 .show_host_supported_fc4s = 1, 6118 .show_host_supported_speeds = 1, 6119 .show_host_maxframe_size = 1, 6120 6121 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6122 .show_host_symbolic_name = 1, 6123 6124 /* dynamic attributes the driver supports */ 6125 .get_host_port_id = lpfc_get_host_port_id, 6126 .show_host_port_id = 1, 6127 6128 .get_host_port_type = lpfc_get_host_port_type, 6129 .show_host_port_type = 1, 6130 6131 .get_host_port_state = lpfc_get_host_port_state, 6132 .show_host_port_state = 1, 6133 6134 /* active_fc4s is shown but doesn't change (thus no get function) */ 6135 .show_host_active_fc4s = 1, 6136 6137 .get_host_speed = lpfc_get_host_speed, 6138 .show_host_speed = 1, 6139 6140 .get_host_fabric_name = lpfc_get_host_fabric_name, 6141 .show_host_fabric_name = 1, 6142 6143 /* 6144 * The LPFC driver treats linkdown handling as target loss events 6145 * so there are no sysfs handlers for link_down_tmo. 6146 */ 6147 6148 .get_fc_host_stats = lpfc_get_stats, 6149 .reset_fc_host_stats = lpfc_reset_stats, 6150 6151 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6152 .show_rport_maxframe_size = 1, 6153 .show_rport_supported_classes = 1, 6154 6155 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6156 .show_rport_dev_loss_tmo = 1, 6157 6158 .get_starget_port_id = lpfc_get_starget_port_id, 6159 .show_starget_port_id = 1, 6160 6161 .get_starget_node_name = lpfc_get_starget_node_name, 6162 .show_starget_node_name = 1, 6163 6164 .get_starget_port_name = lpfc_get_starget_port_name, 6165 .show_starget_port_name = 1, 6166 6167 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6168 .terminate_rport_io = lpfc_terminate_rport_io, 6169 6170 .vport_disable = lpfc_vport_disable, 6171 6172 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6173 }; 6174 6175 /** 6176 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 6177 * @phba: lpfc_hba pointer. 6178 **/ 6179 void 6180 lpfc_get_cfgparam(struct lpfc_hba *phba) 6181 { 6182 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 6183 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 6184 lpfc_cr_delay_init(phba, lpfc_cr_delay); 6185 lpfc_cr_count_init(phba, lpfc_cr_count); 6186 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 6187 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 6188 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 6189 lpfc_ack0_init(phba, lpfc_ack0); 6190 lpfc_topology_init(phba, lpfc_topology); 6191 lpfc_link_speed_init(phba, lpfc_link_speed); 6192 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 6193 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 6194 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 6195 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 6196 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 6197 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 6198 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 6199 lpfc_use_msi_init(phba, lpfc_use_msi); 6200 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 6201 lpfc_auto_imax_init(phba, lpfc_auto_imax); 6202 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 6203 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 6204 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 6205 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 6206 6207 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 6208 if (phba->sli_rev != LPFC_SLI_REV4) 6209 phba->cfg_EnableXLane = 0; 6210 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 6211 6212 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 6213 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 6214 phba->cfg_oas_lun_state = 0; 6215 phba->cfg_oas_lun_status = 0; 6216 phba->cfg_oas_flags = 0; 6217 phba->cfg_oas_priority = 0; 6218 lpfc_enable_bg_init(phba, lpfc_enable_bg); 6219 lpfc_prot_mask_init(phba, lpfc_prot_mask); 6220 lpfc_prot_guard_init(phba, lpfc_prot_guard); 6221 if (phba->sli_rev == LPFC_SLI_REV4) 6222 phba->cfg_poll = 0; 6223 else 6224 phba->cfg_poll = lpfc_poll; 6225 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 6226 6227 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 6228 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 6229 6230 /* Initialize first burst. Target vs Initiator are different. */ 6231 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 6232 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 6233 lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel); 6234 lpfc_nvme_io_channel_init(phba, lpfc_nvme_io_channel); 6235 6236 if (phba->sli_rev != LPFC_SLI_REV4) { 6237 /* NVME only supported on SLI4 */ 6238 phba->nvmet_support = 0; 6239 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 6240 } else { 6241 /* We MUST have FCP support */ 6242 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 6243 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 6244 } 6245 6246 if (phba->cfg_auto_imax && !phba->cfg_fcp_imax) 6247 phba->cfg_auto_imax = 0; 6248 phba->initial_imax = phba->cfg_fcp_imax; 6249 6250 /* A value of 0 means use the number of CPUs found in the system */ 6251 if (phba->cfg_fcp_io_channel == 0) 6252 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6253 if (phba->cfg_nvme_io_channel == 0) 6254 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6255 6256 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) 6257 phba->cfg_fcp_io_channel = 0; 6258 6259 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) 6260 phba->cfg_nvme_io_channel = 0; 6261 6262 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6263 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6264 else 6265 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6266 6267 phba->cfg_soft_wwnn = 0L; 6268 phba->cfg_soft_wwpn = 0L; 6269 lpfc_xri_split_init(phba, lpfc_xri_split); 6270 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 6271 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 6272 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 6273 lpfc_aer_support_init(phba, lpfc_aer_support); 6274 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 6275 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 6276 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 6277 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); 6278 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 6279 lpfc_sli_mode_init(phba, lpfc_sli_mode); 6280 phba->cfg_enable_dss = 1; 6281 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 6282 return; 6283 } 6284 6285 /** 6286 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 6287 * dependencies between protocols and roles. 6288 * @phba: lpfc_hba pointer. 6289 **/ 6290 void 6291 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 6292 { 6293 if (phba->cfg_nvme_io_channel > phba->sli4_hba.num_present_cpu) 6294 phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; 6295 6296 if (phba->cfg_fcp_io_channel > phba->sli4_hba.num_present_cpu) 6297 phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; 6298 6299 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 6300 phba->nvmet_support) { 6301 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 6302 phba->cfg_fcp_io_channel = 0; 6303 6304 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 6305 "6013 %s x%x fb_size x%x, fb_max x%x\n", 6306 "NVME Target PRLI ACC enable_fb ", 6307 phba->cfg_nvme_enable_fb, 6308 phba->cfg_nvmet_fb_size, 6309 LPFC_NVMET_FB_SZ_MAX); 6310 6311 if (phba->cfg_nvme_enable_fb == 0) 6312 phba->cfg_nvmet_fb_size = 0; 6313 else { 6314 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 6315 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 6316 } 6317 6318 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 6319 if (phba->cfg_nvmet_mrq > phba->cfg_nvme_io_channel) { 6320 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 6321 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 6322 "6018 Adjust lpfc_nvmet_mrq to %d\n", 6323 phba->cfg_nvmet_mrq); 6324 } 6325 } else { 6326 /* Not NVME Target mode. Turn off Target parameters. */ 6327 phba->nvmet_support = 0; 6328 phba->cfg_nvmet_mrq = 0; 6329 phba->cfg_nvmet_fb_size = 0; 6330 } 6331 6332 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 6333 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 6334 else 6335 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 6336 } 6337 6338 /** 6339 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 6340 * @vport: lpfc_vport pointer. 6341 **/ 6342 void 6343 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 6344 { 6345 lpfc_log_verbose_init(vport, lpfc_log_verbose); 6346 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 6347 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 6348 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 6349 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 6350 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 6351 lpfc_restrict_login_init(vport, lpfc_restrict_login); 6352 lpfc_fcp_class_init(vport, lpfc_fcp_class); 6353 lpfc_use_adisc_init(vport, lpfc_use_adisc); 6354 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 6355 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 6356 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 6357 lpfc_max_luns_init(vport, lpfc_max_luns); 6358 lpfc_scan_down_init(vport, lpfc_scan_down); 6359 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 6360 return; 6361 } 6362