1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include <linux/nvme-fc-driver.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_nvmet.h" 52 #include "lpfc_logmsg.h" 53 #include "lpfc_version.h" 54 #include "lpfc_compat.h" 55 #include "lpfc_crtn.h" 56 #include "lpfc_vport.h" 57 #include "lpfc_attr.h" 58 59 #define LPFC_DEF_DEVLOSS_TMO 30 60 #define LPFC_MIN_DEVLOSS_TMO 1 61 #define LPFC_MAX_DEVLOSS_TMO 255 62 63 #define LPFC_DEF_MRQ_POST 512 64 #define LPFC_MIN_MRQ_POST 512 65 #define LPFC_MAX_MRQ_POST 2048 66 67 /* 68 * Write key size should be multiple of 4. If write key is changed 69 * make sure that library write key is also changed. 70 */ 71 #define LPFC_REG_WRITE_KEY_SIZE 4 72 #define LPFC_REG_WRITE_KEY "EMLX" 73 74 /** 75 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 76 * @incr: integer to convert. 77 * @hdw: ascii string holding converted integer plus a string terminator. 78 * 79 * Description: 80 * JEDEC Joint Electron Device Engineering Council. 81 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 82 * character string. The string is then terminated with a NULL in byte 9. 83 * Hex 0-9 becomes ascii '0' to '9'. 84 * Hex a-f becomes ascii '=' to 'B' capital B. 85 * 86 * Notes: 87 * Coded for 32 bit integers only. 88 **/ 89 static void 90 lpfc_jedec_to_ascii(int incr, char hdw[]) 91 { 92 int i, j; 93 for (i = 0; i < 8; i++) { 94 j = (incr & 0xf); 95 if (j <= 9) 96 hdw[7 - i] = 0x30 + j; 97 else 98 hdw[7 - i] = 0x61 + j - 10; 99 incr = (incr >> 4); 100 } 101 hdw[8] = 0; 102 return; 103 } 104 105 /** 106 * lpfc_drvr_version_show - Return the Emulex driver string with version number 107 * @dev: class unused variable. 108 * @attr: device attribute, not used. 109 * @buf: on return contains the module description text. 110 * 111 * Returns: size of formatted string. 112 **/ 113 static ssize_t 114 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 115 char *buf) 116 { 117 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 118 } 119 120 /** 121 * lpfc_enable_fip_show - Return the fip mode of the HBA 122 * @dev: class unused variable. 123 * @attr: device attribute, not used. 124 * @buf: on return contains the module description text. 125 * 126 * Returns: size of formatted string. 127 **/ 128 static ssize_t 129 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 130 char *buf) 131 { 132 struct Scsi_Host *shost = class_to_shost(dev); 133 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 134 struct lpfc_hba *phba = vport->phba; 135 136 if (phba->hba_flag & HBA_FIP_SUPPORT) 137 return snprintf(buf, PAGE_SIZE, "1\n"); 138 else 139 return snprintf(buf, PAGE_SIZE, "0\n"); 140 } 141 142 static ssize_t 143 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 144 char *buf) 145 { 146 struct Scsi_Host *shost = class_to_shost(dev); 147 struct lpfc_vport *vport = shost_priv(shost); 148 struct lpfc_hba *phba = vport->phba; 149 struct lpfc_nvmet_tgtport *tgtp; 150 struct nvme_fc_local_port *localport; 151 struct lpfc_nvme_lport *lport; 152 struct lpfc_nvme_rport *rport; 153 struct lpfc_nodelist *ndlp; 154 struct nvme_fc_remote_port *nrport; 155 struct lpfc_fc4_ctrl_stat *cstat; 156 uint64_t data1, data2, data3; 157 uint64_t totin, totout, tot; 158 char *statep; 159 int i; 160 int len = 0; 161 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 162 163 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 164 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 165 return len; 166 } 167 if (phba->nvmet_support) { 168 if (!phba->targetport) { 169 len = scnprintf(buf, PAGE_SIZE, 170 "NVME Target: x%llx is not allocated\n", 171 wwn_to_u64(vport->fc_portname.u.wwn)); 172 return len; 173 } 174 /* Port state is only one of two values for now. */ 175 if (phba->targetport->port_id) 176 statep = "REGISTERED"; 177 else 178 statep = "INIT"; 179 scnprintf(tmp, sizeof(tmp), 180 "NVME Target Enabled State %s\n", 181 statep); 182 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 183 goto buffer_done; 184 185 scnprintf(tmp, sizeof(tmp), 186 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 187 "NVME Target: lpfc", 188 phba->brd_no, 189 wwn_to_u64(vport->fc_portname.u.wwn), 190 wwn_to_u64(vport->fc_nodename.u.wwn), 191 phba->targetport->port_id); 192 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 193 goto buffer_done; 194 195 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 196 >= PAGE_SIZE) 197 goto buffer_done; 198 199 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 200 scnprintf(tmp, sizeof(tmp), 201 "LS: Rcv %08x Drop %08x Abort %08x\n", 202 atomic_read(&tgtp->rcv_ls_req_in), 203 atomic_read(&tgtp->rcv_ls_req_drop), 204 atomic_read(&tgtp->xmt_ls_abort)); 205 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 206 goto buffer_done; 207 208 if (atomic_read(&tgtp->rcv_ls_req_in) != 209 atomic_read(&tgtp->rcv_ls_req_out)) { 210 scnprintf(tmp, sizeof(tmp), 211 "Rcv LS: in %08x != out %08x\n", 212 atomic_read(&tgtp->rcv_ls_req_in), 213 atomic_read(&tgtp->rcv_ls_req_out)); 214 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 215 goto buffer_done; 216 } 217 218 scnprintf(tmp, sizeof(tmp), 219 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 220 atomic_read(&tgtp->xmt_ls_rsp), 221 atomic_read(&tgtp->xmt_ls_drop), 222 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 223 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 224 goto buffer_done; 225 226 scnprintf(tmp, sizeof(tmp), 227 "LS: RSP Abort %08x xb %08x Err %08x\n", 228 atomic_read(&tgtp->xmt_ls_rsp_aborted), 229 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 230 atomic_read(&tgtp->xmt_ls_rsp_error)); 231 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 232 goto buffer_done; 233 234 scnprintf(tmp, sizeof(tmp), 235 "FCP: Rcv %08x Defer %08x Release %08x " 236 "Drop %08x\n", 237 atomic_read(&tgtp->rcv_fcp_cmd_in), 238 atomic_read(&tgtp->rcv_fcp_cmd_defer), 239 atomic_read(&tgtp->xmt_fcp_release), 240 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 241 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 242 goto buffer_done; 243 244 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 245 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 246 scnprintf(tmp, sizeof(tmp), 247 "Rcv FCP: in %08x != out %08x\n", 248 atomic_read(&tgtp->rcv_fcp_cmd_in), 249 atomic_read(&tgtp->rcv_fcp_cmd_out)); 250 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 251 goto buffer_done; 252 } 253 254 scnprintf(tmp, sizeof(tmp), 255 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 256 "drop %08x\n", 257 atomic_read(&tgtp->xmt_fcp_read), 258 atomic_read(&tgtp->xmt_fcp_read_rsp), 259 atomic_read(&tgtp->xmt_fcp_write), 260 atomic_read(&tgtp->xmt_fcp_rsp), 261 atomic_read(&tgtp->xmt_fcp_drop)); 262 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 263 goto buffer_done; 264 265 scnprintf(tmp, sizeof(tmp), 266 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 267 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 268 atomic_read(&tgtp->xmt_fcp_rsp_error), 269 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 270 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 271 goto buffer_done; 272 273 scnprintf(tmp, sizeof(tmp), 274 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 275 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 276 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 277 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 278 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 279 goto buffer_done; 280 281 scnprintf(tmp, sizeof(tmp), 282 "ABORT: Xmt %08x Cmpl %08x\n", 283 atomic_read(&tgtp->xmt_fcp_abort), 284 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 285 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 286 goto buffer_done; 287 288 scnprintf(tmp, sizeof(tmp), 289 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 290 atomic_read(&tgtp->xmt_abort_sol), 291 atomic_read(&tgtp->xmt_abort_unsol), 292 atomic_read(&tgtp->xmt_abort_rsp), 293 atomic_read(&tgtp->xmt_abort_rsp_error)); 294 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 295 goto buffer_done; 296 297 scnprintf(tmp, sizeof(tmp), 298 "DELAY: ctx %08x fod %08x wqfull %08x\n", 299 atomic_read(&tgtp->defer_ctx), 300 atomic_read(&tgtp->defer_fod), 301 atomic_read(&tgtp->defer_wqfull)); 302 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 303 goto buffer_done; 304 305 /* Calculate outstanding IOs */ 306 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 307 tot += atomic_read(&tgtp->xmt_fcp_release); 308 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 309 310 scnprintf(tmp, sizeof(tmp), 311 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 312 "CTX Outstanding %08llx\n\n", 313 phba->sli4_hba.nvmet_xri_cnt, 314 phba->sli4_hba.nvmet_io_wait_cnt, 315 phba->sli4_hba.nvmet_io_wait_total, 316 tot); 317 strlcat(buf, tmp, PAGE_SIZE); 318 goto buffer_done; 319 } 320 321 localport = vport->localport; 322 if (!localport) { 323 len = scnprintf(buf, PAGE_SIZE, 324 "NVME Initiator x%llx is not allocated\n", 325 wwn_to_u64(vport->fc_portname.u.wwn)); 326 return len; 327 } 328 lport = (struct lpfc_nvme_lport *)localport->private; 329 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 330 goto buffer_done; 331 332 rcu_read_lock(); 333 scnprintf(tmp, sizeof(tmp), 334 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 335 phba->brd_no, 336 phba->sli4_hba.max_cfg_param.max_xri, 337 phba->sli4_hba.io_xri_max, 338 lpfc_sli4_get_els_iocb_cnt(phba)); 339 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 340 goto buffer_done; 341 342 /* Port state is only one of two values for now. */ 343 if (localport->port_id) 344 statep = "ONLINE"; 345 else 346 statep = "UNKNOWN "; 347 348 scnprintf(tmp, sizeof(tmp), 349 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 350 "NVME LPORT lpfc", 351 phba->brd_no, 352 wwn_to_u64(vport->fc_portname.u.wwn), 353 wwn_to_u64(vport->fc_nodename.u.wwn), 354 localport->port_id, statep); 355 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 356 goto buffer_done; 357 358 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 359 nrport = NULL; 360 spin_lock(&vport->phba->hbalock); 361 rport = lpfc_ndlp_get_nrport(ndlp); 362 if (rport) 363 nrport = rport->remoteport; 364 spin_unlock(&vport->phba->hbalock); 365 if (!nrport) 366 continue; 367 368 /* Port state is only one of two values for now. */ 369 switch (nrport->port_state) { 370 case FC_OBJSTATE_ONLINE: 371 statep = "ONLINE"; 372 break; 373 case FC_OBJSTATE_UNKNOWN: 374 statep = "UNKNOWN "; 375 break; 376 default: 377 statep = "UNSUPPORTED"; 378 break; 379 } 380 381 /* Tab in to show lport ownership. */ 382 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 383 goto buffer_done; 384 if (phba->brd_no >= 10) { 385 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 386 goto buffer_done; 387 } 388 389 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 390 nrport->port_name); 391 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 392 goto buffer_done; 393 394 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 395 nrport->node_name); 396 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 397 goto buffer_done; 398 399 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 400 nrport->port_id); 401 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 402 goto buffer_done; 403 404 /* An NVME rport can have multiple roles. */ 405 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 406 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 407 goto buffer_done; 408 } 409 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 410 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 411 goto buffer_done; 412 } 413 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 414 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 415 goto buffer_done; 416 } 417 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 418 FC_PORT_ROLE_NVME_TARGET | 419 FC_PORT_ROLE_NVME_DISCOVERY)) { 420 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 421 nrport->port_role); 422 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 423 goto buffer_done; 424 } 425 426 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 427 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 428 goto buffer_done; 429 } 430 rcu_read_unlock(); 431 432 if (!lport) 433 goto buffer_done; 434 435 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 436 goto buffer_done; 437 438 scnprintf(tmp, sizeof(tmp), 439 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 440 atomic_read(&lport->fc4NvmeLsRequests), 441 atomic_read(&lport->fc4NvmeLsCmpls), 442 atomic_read(&lport->xmt_ls_abort)); 443 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 444 goto buffer_done; 445 446 scnprintf(tmp, sizeof(tmp), 447 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 448 atomic_read(&lport->xmt_ls_err), 449 atomic_read(&lport->cmpl_ls_xb), 450 atomic_read(&lport->cmpl_ls_err)); 451 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 452 goto buffer_done; 453 454 totin = 0; 455 totout = 0; 456 for (i = 0; i < phba->cfg_hdw_queue; i++) { 457 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 458 tot = cstat->io_cmpls; 459 totin += tot; 460 data1 = cstat->input_requests; 461 data2 = cstat->output_requests; 462 data3 = cstat->control_requests; 463 totout += (data1 + data2 + data3); 464 } 465 scnprintf(tmp, sizeof(tmp), 466 "Total FCP Cmpl %016llx Issue %016llx " 467 "OutIO %016llx\n", 468 totin, totout, totout - totin); 469 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 470 goto buffer_done; 471 472 scnprintf(tmp, sizeof(tmp), 473 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 474 "wqerr %08x err %08x\n", 475 atomic_read(&lport->xmt_fcp_abort), 476 atomic_read(&lport->xmt_fcp_noxri), 477 atomic_read(&lport->xmt_fcp_bad_ndlp), 478 atomic_read(&lport->xmt_fcp_qdepth), 479 atomic_read(&lport->xmt_fcp_err), 480 atomic_read(&lport->xmt_fcp_wqerr)); 481 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 482 goto buffer_done; 483 484 scnprintf(tmp, sizeof(tmp), 485 "FCP CMPL: xb %08x Err %08x\n", 486 atomic_read(&lport->cmpl_fcp_xb), 487 atomic_read(&lport->cmpl_fcp_err)); 488 strlcat(buf, tmp, PAGE_SIZE); 489 490 buffer_done: 491 len = strnlen(buf, PAGE_SIZE); 492 493 if (unlikely(len >= (PAGE_SIZE - 1))) { 494 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 495 "6314 Catching potential buffer " 496 "overflow > PAGE_SIZE = %lu bytes\n", 497 PAGE_SIZE); 498 strlcpy(buf + PAGE_SIZE - 1 - 499 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1), 500 LPFC_NVME_INFO_MORE_STR, 501 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) 502 + 1); 503 } 504 505 return len; 506 } 507 508 static ssize_t 509 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 510 char *buf) 511 { 512 struct Scsi_Host *shost = class_to_shost(dev); 513 struct lpfc_vport *vport = shost_priv(shost); 514 struct lpfc_hba *phba = vport->phba; 515 int len; 516 struct lpfc_fc4_ctrl_stat *cstat; 517 u64 data1, data2, data3; 518 u64 tot, totin, totout; 519 int i; 520 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 521 522 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 523 (phba->sli_rev != LPFC_SLI_REV4)) 524 return 0; 525 526 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 527 528 totin = 0; 529 totout = 0; 530 for (i = 0; i < phba->cfg_hdw_queue; i++) { 531 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 532 tot = cstat->io_cmpls; 533 totin += tot; 534 data1 = cstat->input_requests; 535 data2 = cstat->output_requests; 536 data3 = cstat->control_requests; 537 totout += (data1 + data2 + data3); 538 539 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 540 "IO %016llx ", i, data1, data2, data3); 541 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 542 goto buffer_done; 543 544 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 545 tot, ((data1 + data2 + data3) - tot)); 546 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 547 goto buffer_done; 548 } 549 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 550 "OutIO %016llx\n", totin, totout, totout - totin); 551 strlcat(buf, tmp, PAGE_SIZE); 552 553 buffer_done: 554 len = strnlen(buf, PAGE_SIZE); 555 556 return len; 557 } 558 559 static ssize_t 560 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 561 char *buf) 562 { 563 struct Scsi_Host *shost = class_to_shost(dev); 564 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 565 struct lpfc_hba *phba = vport->phba; 566 567 if (phba->cfg_enable_bg) 568 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 569 return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); 570 else 571 return snprintf(buf, PAGE_SIZE, 572 "BlockGuard Not Supported\n"); 573 else 574 return snprintf(buf, PAGE_SIZE, 575 "BlockGuard Disabled\n"); 576 } 577 578 static ssize_t 579 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 580 char *buf) 581 { 582 struct Scsi_Host *shost = class_to_shost(dev); 583 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 584 struct lpfc_hba *phba = vport->phba; 585 586 return snprintf(buf, PAGE_SIZE, "%llu\n", 587 (unsigned long long)phba->bg_guard_err_cnt); 588 } 589 590 static ssize_t 591 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 592 char *buf) 593 { 594 struct Scsi_Host *shost = class_to_shost(dev); 595 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 596 struct lpfc_hba *phba = vport->phba; 597 598 return snprintf(buf, PAGE_SIZE, "%llu\n", 599 (unsigned long long)phba->bg_apptag_err_cnt); 600 } 601 602 static ssize_t 603 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 604 char *buf) 605 { 606 struct Scsi_Host *shost = class_to_shost(dev); 607 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 608 struct lpfc_hba *phba = vport->phba; 609 610 return snprintf(buf, PAGE_SIZE, "%llu\n", 611 (unsigned long long)phba->bg_reftag_err_cnt); 612 } 613 614 /** 615 * lpfc_info_show - Return some pci info about the host in ascii 616 * @dev: class converted to a Scsi_host structure. 617 * @attr: device attribute, not used. 618 * @buf: on return contains the formatted text from lpfc_info(). 619 * 620 * Returns: size of formatted string. 621 **/ 622 static ssize_t 623 lpfc_info_show(struct device *dev, struct device_attribute *attr, 624 char *buf) 625 { 626 struct Scsi_Host *host = class_to_shost(dev); 627 628 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); 629 } 630 631 /** 632 * lpfc_serialnum_show - Return the hba serial number in ascii 633 * @dev: class converted to a Scsi_host structure. 634 * @attr: device attribute, not used. 635 * @buf: on return contains the formatted text serial number. 636 * 637 * Returns: size of formatted string. 638 **/ 639 static ssize_t 640 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 641 char *buf) 642 { 643 struct Scsi_Host *shost = class_to_shost(dev); 644 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 645 struct lpfc_hba *phba = vport->phba; 646 647 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); 648 } 649 650 /** 651 * lpfc_temp_sensor_show - Return the temperature sensor level 652 * @dev: class converted to a Scsi_host structure. 653 * @attr: device attribute, not used. 654 * @buf: on return contains the formatted support level. 655 * 656 * Description: 657 * Returns a number indicating the temperature sensor level currently 658 * supported, zero or one in ascii. 659 * 660 * Returns: size of formatted string. 661 **/ 662 static ssize_t 663 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 664 char *buf) 665 { 666 struct Scsi_Host *shost = class_to_shost(dev); 667 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 668 struct lpfc_hba *phba = vport->phba; 669 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); 670 } 671 672 /** 673 * lpfc_modeldesc_show - Return the model description of the hba 674 * @dev: class converted to a Scsi_host structure. 675 * @attr: device attribute, not used. 676 * @buf: on return contains the scsi vpd model description. 677 * 678 * Returns: size of formatted string. 679 **/ 680 static ssize_t 681 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 682 char *buf) 683 { 684 struct Scsi_Host *shost = class_to_shost(dev); 685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 686 struct lpfc_hba *phba = vport->phba; 687 688 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); 689 } 690 691 /** 692 * lpfc_modelname_show - Return the model name of the hba 693 * @dev: class converted to a Scsi_host structure. 694 * @attr: device attribute, not used. 695 * @buf: on return contains the scsi vpd model name. 696 * 697 * Returns: size of formatted string. 698 **/ 699 static ssize_t 700 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 701 char *buf) 702 { 703 struct Scsi_Host *shost = class_to_shost(dev); 704 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 705 struct lpfc_hba *phba = vport->phba; 706 707 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); 708 } 709 710 /** 711 * lpfc_programtype_show - Return the program type of the hba 712 * @dev: class converted to a Scsi_host structure. 713 * @attr: device attribute, not used. 714 * @buf: on return contains the scsi vpd program type. 715 * 716 * Returns: size of formatted string. 717 **/ 718 static ssize_t 719 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 720 char *buf) 721 { 722 struct Scsi_Host *shost = class_to_shost(dev); 723 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 724 struct lpfc_hba *phba = vport->phba; 725 726 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); 727 } 728 729 /** 730 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 731 * @dev: class converted to a Scsi_host structure. 732 * @attr: device attribute, not used. 733 * @buf: on return contains the Menlo Maintenance sli flag. 734 * 735 * Returns: size of formatted string. 736 **/ 737 static ssize_t 738 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 739 { 740 struct Scsi_Host *shost = class_to_shost(dev); 741 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 742 struct lpfc_hba *phba = vport->phba; 743 744 return snprintf(buf, PAGE_SIZE, "%d\n", 745 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 746 } 747 748 /** 749 * lpfc_vportnum_show - Return the port number in ascii of the hba 750 * @dev: class converted to a Scsi_host structure. 751 * @attr: device attribute, not used. 752 * @buf: on return contains scsi vpd program type. 753 * 754 * Returns: size of formatted string. 755 **/ 756 static ssize_t 757 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 758 char *buf) 759 { 760 struct Scsi_Host *shost = class_to_shost(dev); 761 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 762 struct lpfc_hba *phba = vport->phba; 763 764 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); 765 } 766 767 /** 768 * lpfc_fwrev_show - Return the firmware rev running in the hba 769 * @dev: class converted to a Scsi_host structure. 770 * @attr: device attribute, not used. 771 * @buf: on return contains the scsi vpd program type. 772 * 773 * Returns: size of formatted string. 774 **/ 775 static ssize_t 776 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 777 char *buf) 778 { 779 struct Scsi_Host *shost = class_to_shost(dev); 780 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 781 struct lpfc_hba *phba = vport->phba; 782 uint32_t if_type; 783 uint8_t sli_family; 784 char fwrev[FW_REV_STR_SIZE]; 785 int len; 786 787 lpfc_decode_firmware_rev(phba, fwrev, 1); 788 if_type = phba->sli4_hba.pc_sli4_params.if_type; 789 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 790 791 if (phba->sli_rev < LPFC_SLI_REV4) 792 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 793 fwrev, phba->sli_rev); 794 else 795 len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 796 fwrev, phba->sli_rev, if_type, sli_family); 797 798 return len; 799 } 800 801 /** 802 * lpfc_hdw_show - Return the jedec information about the hba 803 * @dev: class converted to a Scsi_host structure. 804 * @attr: device attribute, not used. 805 * @buf: on return contains the scsi vpd program type. 806 * 807 * Returns: size of formatted string. 808 **/ 809 static ssize_t 810 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 811 { 812 char hdw[9]; 813 struct Scsi_Host *shost = class_to_shost(dev); 814 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 815 struct lpfc_hba *phba = vport->phba; 816 lpfc_vpd_t *vp = &phba->vpd; 817 818 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 819 return snprintf(buf, PAGE_SIZE, "%s\n", hdw); 820 } 821 822 /** 823 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 824 * @dev: class converted to a Scsi_host structure. 825 * @attr: device attribute, not used. 826 * @buf: on return contains the ROM and FCode ascii strings. 827 * 828 * Returns: size of formatted string. 829 **/ 830 static ssize_t 831 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 832 char *buf) 833 { 834 struct Scsi_Host *shost = class_to_shost(dev); 835 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 836 struct lpfc_hba *phba = vport->phba; 837 char fwrev[FW_REV_STR_SIZE]; 838 839 if (phba->sli_rev < LPFC_SLI_REV4) 840 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); 841 842 lpfc_decode_firmware_rev(phba, fwrev, 1); 843 return snprintf(buf, PAGE_SIZE, "%s\n", fwrev); 844 } 845 846 /** 847 * lpfc_state_show - Return the link state of the port 848 * @dev: class converted to a Scsi_host structure. 849 * @attr: device attribute, not used. 850 * @buf: on return contains text describing the state of the link. 851 * 852 * Notes: 853 * The switch statement has no default so zero will be returned. 854 * 855 * Returns: size of formatted string. 856 **/ 857 static ssize_t 858 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 859 char *buf) 860 { 861 struct Scsi_Host *shost = class_to_shost(dev); 862 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 863 struct lpfc_hba *phba = vport->phba; 864 int len = 0; 865 866 switch (phba->link_state) { 867 case LPFC_LINK_UNKNOWN: 868 case LPFC_WARM_START: 869 case LPFC_INIT_START: 870 case LPFC_INIT_MBX_CMDS: 871 case LPFC_LINK_DOWN: 872 case LPFC_HBA_ERROR: 873 if (phba->hba_flag & LINK_DISABLED) 874 len += snprintf(buf + len, PAGE_SIZE-len, 875 "Link Down - User disabled\n"); 876 else 877 len += snprintf(buf + len, PAGE_SIZE-len, 878 "Link Down\n"); 879 break; 880 case LPFC_LINK_UP: 881 case LPFC_CLEAR_LA: 882 case LPFC_HBA_READY: 883 len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 884 885 switch (vport->port_state) { 886 case LPFC_LOCAL_CFG_LINK: 887 len += snprintf(buf + len, PAGE_SIZE-len, 888 "Configuring Link\n"); 889 break; 890 case LPFC_FDISC: 891 case LPFC_FLOGI: 892 case LPFC_FABRIC_CFG_LINK: 893 case LPFC_NS_REG: 894 case LPFC_NS_QRY: 895 case LPFC_BUILD_DISC_LIST: 896 case LPFC_DISC_AUTH: 897 len += snprintf(buf + len, PAGE_SIZE - len, 898 "Discovery\n"); 899 break; 900 case LPFC_VPORT_READY: 901 len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n"); 902 break; 903 904 case LPFC_VPORT_FAILED: 905 len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n"); 906 break; 907 908 case LPFC_VPORT_UNKNOWN: 909 len += snprintf(buf + len, PAGE_SIZE - len, 910 "Unknown\n"); 911 break; 912 } 913 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 914 len += snprintf(buf + len, PAGE_SIZE-len, 915 " Menlo Maint Mode\n"); 916 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 917 if (vport->fc_flag & FC_PUBLIC_LOOP) 918 len += snprintf(buf + len, PAGE_SIZE-len, 919 " Public Loop\n"); 920 else 921 len += snprintf(buf + len, PAGE_SIZE-len, 922 " Private Loop\n"); 923 } else { 924 if (vport->fc_flag & FC_FABRIC) 925 len += snprintf(buf + len, PAGE_SIZE-len, 926 " Fabric\n"); 927 else 928 len += snprintf(buf + len, PAGE_SIZE-len, 929 " Point-2-Point\n"); 930 } 931 } 932 933 if ((phba->sli_rev == LPFC_SLI_REV4) && 934 ((bf_get(lpfc_sli_intf_if_type, 935 &phba->sli4_hba.sli_intf) == 936 LPFC_SLI_INTF_IF_TYPE_6))) { 937 struct lpfc_trunk_link link = phba->trunk_link; 938 939 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 940 len += snprintf(buf + len, PAGE_SIZE - len, 941 "Trunk port 0: Link %s %s\n", 942 (link.link0.state == LPFC_LINK_UP) ? 943 "Up" : "Down. ", 944 trunk_errmsg[link.link0.fault]); 945 946 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 947 len += snprintf(buf + len, PAGE_SIZE - len, 948 "Trunk port 1: Link %s %s\n", 949 (link.link1.state == LPFC_LINK_UP) ? 950 "Up" : "Down. ", 951 trunk_errmsg[link.link1.fault]); 952 953 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 954 len += snprintf(buf + len, PAGE_SIZE - len, 955 "Trunk port 2: Link %s %s\n", 956 (link.link2.state == LPFC_LINK_UP) ? 957 "Up" : "Down. ", 958 trunk_errmsg[link.link2.fault]); 959 960 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 961 len += snprintf(buf + len, PAGE_SIZE - len, 962 "Trunk port 3: Link %s %s\n", 963 (link.link3.state == LPFC_LINK_UP) ? 964 "Up" : "Down. ", 965 trunk_errmsg[link.link3.fault]); 966 967 } 968 969 return len; 970 } 971 972 /** 973 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 974 * @dev: class unused variable. 975 * @attr: device attribute, not used. 976 * @buf: on return contains the module description text. 977 * 978 * Returns: size of formatted string. 979 **/ 980 static ssize_t 981 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 982 char *buf) 983 { 984 struct Scsi_Host *shost = class_to_shost(dev); 985 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 986 struct lpfc_hba *phba = vport->phba; 987 988 if (phba->sli_rev < LPFC_SLI_REV4) 989 return snprintf(buf, PAGE_SIZE, "fc\n"); 990 991 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 992 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 993 return snprintf(buf, PAGE_SIZE, "fcoe\n"); 994 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 995 return snprintf(buf, PAGE_SIZE, "fc\n"); 996 } 997 return snprintf(buf, PAGE_SIZE, "unknown\n"); 998 } 999 1000 /** 1001 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1002 * (OAS) is supported. 1003 * @dev: class unused variable. 1004 * @attr: device attribute, not used. 1005 * @buf: on return contains the module description text. 1006 * 1007 * Returns: size of formatted string. 1008 **/ 1009 static ssize_t 1010 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1011 char *buf) 1012 { 1013 struct Scsi_Host *shost = class_to_shost(dev); 1014 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1015 struct lpfc_hba *phba = vport->phba; 1016 1017 return snprintf(buf, PAGE_SIZE, "%d\n", 1018 phba->sli4_hba.pc_sli4_params.oas_supported); 1019 } 1020 1021 /** 1022 * lpfc_link_state_store - Transition the link_state on an HBA port 1023 * @dev: class device that is converted into a Scsi_host. 1024 * @attr: device attribute, not used. 1025 * @buf: one or more lpfc_polling_flags values. 1026 * @count: not used. 1027 * 1028 * Returns: 1029 * -EINVAL if the buffer is not "up" or "down" 1030 * return from link state change function if non-zero 1031 * length of the buf on success 1032 **/ 1033 static ssize_t 1034 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1035 const char *buf, size_t count) 1036 { 1037 struct Scsi_Host *shost = class_to_shost(dev); 1038 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1039 struct lpfc_hba *phba = vport->phba; 1040 1041 int status = -EINVAL; 1042 1043 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1044 (phba->link_state == LPFC_LINK_DOWN)) 1045 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1046 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1047 (phba->link_state >= LPFC_LINK_UP)) 1048 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1049 1050 if (status == 0) 1051 return strlen(buf); 1052 else 1053 return status; 1054 } 1055 1056 /** 1057 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1058 * @dev: class device that is converted into a Scsi_host. 1059 * @attr: device attribute, not used. 1060 * @buf: on return contains the sum of fc mapped and unmapped. 1061 * 1062 * Description: 1063 * Returns the ascii text number of the sum of the fc mapped and unmapped 1064 * vport counts. 1065 * 1066 * Returns: size of formatted string. 1067 **/ 1068 static ssize_t 1069 lpfc_num_discovered_ports_show(struct device *dev, 1070 struct device_attribute *attr, char *buf) 1071 { 1072 struct Scsi_Host *shost = class_to_shost(dev); 1073 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1074 1075 return snprintf(buf, PAGE_SIZE, "%d\n", 1076 vport->fc_map_cnt + vport->fc_unmap_cnt); 1077 } 1078 1079 /** 1080 * lpfc_issue_lip - Misnomer, name carried over from long ago 1081 * @shost: Scsi_Host pointer. 1082 * 1083 * Description: 1084 * Bring the link down gracefully then re-init the link. The firmware will 1085 * re-init the fiber channel interface as required. Does not issue a LIP. 1086 * 1087 * Returns: 1088 * -EPERM port offline or management commands are being blocked 1089 * -ENOMEM cannot allocate memory for the mailbox command 1090 * -EIO error sending the mailbox command 1091 * zero for success 1092 **/ 1093 static int 1094 lpfc_issue_lip(struct Scsi_Host *shost) 1095 { 1096 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1097 struct lpfc_hba *phba = vport->phba; 1098 LPFC_MBOXQ_t *pmboxq; 1099 int mbxstatus = MBXERR_ERROR; 1100 1101 /* 1102 * If the link is offline, disabled or BLOCK_MGMT_IO 1103 * it doesn't make any sense to allow issue_lip 1104 */ 1105 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1106 (phba->hba_flag & LINK_DISABLED) || 1107 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1108 return -EPERM; 1109 1110 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1111 1112 if (!pmboxq) 1113 return -ENOMEM; 1114 1115 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1116 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1117 pmboxq->u.mb.mbxOwner = OWN_HOST; 1118 1119 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1120 1121 if ((mbxstatus == MBX_SUCCESS) && 1122 (pmboxq->u.mb.mbxStatus == 0 || 1123 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1124 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1125 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1126 phba->cfg_link_speed); 1127 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1128 phba->fc_ratov * 2); 1129 if ((mbxstatus == MBX_SUCCESS) && 1130 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1131 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1132 "2859 SLI authentication is required " 1133 "for INIT_LINK but has not done yet\n"); 1134 } 1135 1136 lpfc_set_loopback_flag(phba); 1137 if (mbxstatus != MBX_TIMEOUT) 1138 mempool_free(pmboxq, phba->mbox_mem_pool); 1139 1140 if (mbxstatus == MBXERR_ERROR) 1141 return -EIO; 1142 1143 return 0; 1144 } 1145 1146 int 1147 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1148 { 1149 int cnt = 0; 1150 1151 spin_lock_irq(lock); 1152 while (!list_empty(q)) { 1153 spin_unlock_irq(lock); 1154 msleep(20); 1155 if (cnt++ > 250) { /* 5 secs */ 1156 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1157 "0466 %s %s\n", 1158 "Outstanding IO when ", 1159 "bringing Adapter offline\n"); 1160 return 0; 1161 } 1162 spin_lock_irq(lock); 1163 } 1164 spin_unlock_irq(lock); 1165 return 1; 1166 } 1167 1168 /** 1169 * lpfc_do_offline - Issues a mailbox command to bring the link down 1170 * @phba: lpfc_hba pointer. 1171 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1172 * 1173 * Notes: 1174 * Assumes any error from lpfc_do_offline() will be negative. 1175 * Can wait up to 5 seconds for the port ring buffers count 1176 * to reach zero, prints a warning if it is not zero and continues. 1177 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1178 * 1179 * Returns: 1180 * -EIO error posting the event 1181 * zero for success 1182 **/ 1183 static int 1184 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1185 { 1186 struct completion online_compl; 1187 struct lpfc_queue *qp = NULL; 1188 struct lpfc_sli_ring *pring; 1189 struct lpfc_sli *psli; 1190 int status = 0; 1191 int i; 1192 int rc; 1193 1194 init_completion(&online_compl); 1195 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1196 LPFC_EVT_OFFLINE_PREP); 1197 if (rc == 0) 1198 return -ENOMEM; 1199 1200 wait_for_completion(&online_compl); 1201 1202 if (status != 0) 1203 return -EIO; 1204 1205 psli = &phba->sli; 1206 1207 /* Wait a little for things to settle down, but not 1208 * long enough for dev loss timeout to expire. 1209 */ 1210 if (phba->sli_rev != LPFC_SLI_REV4) { 1211 for (i = 0; i < psli->num_rings; i++) { 1212 pring = &psli->sli3_ring[i]; 1213 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1214 &phba->hbalock)) 1215 goto out; 1216 } 1217 } else { 1218 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1219 pring = qp->pring; 1220 if (!pring) 1221 continue; 1222 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1223 &pring->ring_lock)) 1224 goto out; 1225 } 1226 } 1227 out: 1228 init_completion(&online_compl); 1229 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1230 if (rc == 0) 1231 return -ENOMEM; 1232 1233 wait_for_completion(&online_compl); 1234 1235 if (status != 0) 1236 return -EIO; 1237 1238 return 0; 1239 } 1240 1241 /** 1242 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1243 * @phba: lpfc_hba pointer. 1244 * 1245 * Description: 1246 * Issues a PCI secondary bus reset for the phba->pcidev. 1247 * 1248 * Notes: 1249 * First walks the bus_list to ensure only PCI devices with Emulex 1250 * vendor id, device ids that support hot reset, only one occurrence 1251 * of function 0, and all ports on the bus are in offline mode to ensure the 1252 * hot reset only affects one valid HBA. 1253 * 1254 * Returns: 1255 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1256 * -ENODEV, NULL ptr to pcidev 1257 * -EBADSLT, detected invalid device 1258 * -EBUSY, port is not in offline state 1259 * 0, successful 1260 */ 1261 int 1262 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1263 { 1264 struct pci_dev *pdev = phba->pcidev; 1265 struct Scsi_Host *shost = NULL; 1266 struct lpfc_hba *phba_other = NULL; 1267 struct pci_dev *ptr = NULL; 1268 int res; 1269 1270 if (phba->cfg_enable_hba_reset != 2) 1271 return -ENOTSUPP; 1272 1273 if (!pdev) { 1274 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1275 return -ENODEV; 1276 } 1277 1278 res = lpfc_check_pci_resettable(phba); 1279 if (res) 1280 return res; 1281 1282 /* Walk the list of devices on the pci_dev's bus */ 1283 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1284 /* Check port is offline */ 1285 shost = pci_get_drvdata(ptr); 1286 if (shost) { 1287 phba_other = 1288 ((struct lpfc_vport *)shost->hostdata)->phba; 1289 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1290 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1291 "8349 WWPN = 0x%02x%02x%02x%02x" 1292 "%02x%02x%02x%02x is not " 1293 "offline!\n", 1294 phba_other->wwpn[0], 1295 phba_other->wwpn[1], 1296 phba_other->wwpn[2], 1297 phba_other->wwpn[3], 1298 phba_other->wwpn[4], 1299 phba_other->wwpn[5], 1300 phba_other->wwpn[6], 1301 phba_other->wwpn[7]); 1302 return -EBUSY; 1303 } 1304 } 1305 } 1306 1307 /* Issue PCI bus reset */ 1308 res = pci_reset_bus(pdev); 1309 if (res) { 1310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1311 "8350 PCI reset bus failed: %d\n", res); 1312 } 1313 1314 return res; 1315 } 1316 1317 /** 1318 * lpfc_selective_reset - Offline then onlines the port 1319 * @phba: lpfc_hba pointer. 1320 * 1321 * Description: 1322 * If the port is configured to allow a reset then the hba is brought 1323 * offline then online. 1324 * 1325 * Notes: 1326 * Assumes any error from lpfc_do_offline() will be negative. 1327 * Do not make this function static. 1328 * 1329 * Returns: 1330 * lpfc_do_offline() return code if not zero 1331 * -EIO reset not configured or error posting the event 1332 * zero for success 1333 **/ 1334 int 1335 lpfc_selective_reset(struct lpfc_hba *phba) 1336 { 1337 struct completion online_compl; 1338 int status = 0; 1339 int rc; 1340 1341 if (!phba->cfg_enable_hba_reset) 1342 return -EACCES; 1343 1344 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1345 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1346 1347 if (status != 0) 1348 return status; 1349 } 1350 1351 init_completion(&online_compl); 1352 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1353 LPFC_EVT_ONLINE); 1354 if (rc == 0) 1355 return -ENOMEM; 1356 1357 wait_for_completion(&online_compl); 1358 1359 if (status != 0) 1360 return -EIO; 1361 1362 return 0; 1363 } 1364 1365 /** 1366 * lpfc_issue_reset - Selectively resets an adapter 1367 * @dev: class device that is converted into a Scsi_host. 1368 * @attr: device attribute, not used. 1369 * @buf: containing the string "selective". 1370 * @count: unused variable. 1371 * 1372 * Description: 1373 * If the buf contains the string "selective" then lpfc_selective_reset() 1374 * is called to perform the reset. 1375 * 1376 * Notes: 1377 * Assumes any error from lpfc_selective_reset() will be negative. 1378 * If lpfc_selective_reset() returns zero then the length of the buffer 1379 * is returned which indicates success 1380 * 1381 * Returns: 1382 * -EINVAL if the buffer does not contain the string "selective" 1383 * length of buf if lpfc-selective_reset() if the call succeeds 1384 * return value of lpfc_selective_reset() if the call fails 1385 **/ 1386 static ssize_t 1387 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1388 const char *buf, size_t count) 1389 { 1390 struct Scsi_Host *shost = class_to_shost(dev); 1391 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1392 struct lpfc_hba *phba = vport->phba; 1393 int status = -EINVAL; 1394 1395 if (!phba->cfg_enable_hba_reset) 1396 return -EACCES; 1397 1398 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1399 status = phba->lpfc_selective_reset(phba); 1400 1401 if (status == 0) 1402 return strlen(buf); 1403 else 1404 return status; 1405 } 1406 1407 /** 1408 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1409 * @phba: lpfc_hba pointer. 1410 * 1411 * Description: 1412 * SLI4 interface type-2 device to wait on the sliport status register for 1413 * the readyness after performing a firmware reset. 1414 * 1415 * Returns: 1416 * zero for success, -EPERM when port does not have privilege to perform the 1417 * reset, -EIO when port timeout from recovering from the reset. 1418 * 1419 * Note: 1420 * As the caller will interpret the return code by value, be careful in making 1421 * change or addition to return codes. 1422 **/ 1423 int 1424 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1425 { 1426 struct lpfc_register portstat_reg = {0}; 1427 int i; 1428 1429 msleep(100); 1430 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1431 &portstat_reg.word0); 1432 1433 /* verify if privileged for the request operation */ 1434 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1435 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1436 return -EPERM; 1437 1438 /* wait for the SLI port firmware ready after firmware reset */ 1439 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1440 msleep(10); 1441 lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1442 &portstat_reg.word0); 1443 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1444 continue; 1445 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1446 continue; 1447 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1448 continue; 1449 break; 1450 } 1451 1452 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1453 return 0; 1454 else 1455 return -EIO; 1456 } 1457 1458 /** 1459 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1460 * @phba: lpfc_hba pointer. 1461 * 1462 * Description: 1463 * Request SLI4 interface type-2 device to perform a physical register set 1464 * access. 1465 * 1466 * Returns: 1467 * zero for success 1468 **/ 1469 static ssize_t 1470 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1471 { 1472 struct completion online_compl; 1473 struct pci_dev *pdev = phba->pcidev; 1474 uint32_t before_fc_flag; 1475 uint32_t sriov_nr_virtfn; 1476 uint32_t reg_val; 1477 int status = 0, rc = 0; 1478 int job_posted = 1, sriov_err; 1479 1480 if (!phba->cfg_enable_hba_reset) 1481 return -EACCES; 1482 1483 if ((phba->sli_rev < LPFC_SLI_REV4) || 1484 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1485 LPFC_SLI_INTF_IF_TYPE_2)) 1486 return -EPERM; 1487 1488 /* Keep state if we need to restore back */ 1489 before_fc_flag = phba->pport->fc_flag; 1490 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1491 1492 /* Disable SR-IOV virtual functions if enabled */ 1493 if (phba->cfg_sriov_nr_virtfn) { 1494 pci_disable_sriov(pdev); 1495 phba->cfg_sriov_nr_virtfn = 0; 1496 } 1497 1498 if (opcode == LPFC_FW_DUMP) 1499 phba->hba_flag |= HBA_FW_DUMP_OP; 1500 1501 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1502 1503 if (status != 0) { 1504 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1505 return status; 1506 } 1507 1508 /* wait for the device to be quiesced before firmware reset */ 1509 msleep(100); 1510 1511 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1512 LPFC_CTL_PDEV_CTL_OFFSET); 1513 1514 if (opcode == LPFC_FW_DUMP) 1515 reg_val |= LPFC_FW_DUMP_REQUEST; 1516 else if (opcode == LPFC_FW_RESET) 1517 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1518 else if (opcode == LPFC_DV_RESET) 1519 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1520 1521 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1522 LPFC_CTL_PDEV_CTL_OFFSET); 1523 /* flush */ 1524 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1525 1526 /* delay driver action following IF_TYPE_2 reset */ 1527 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1528 1529 if (rc == -EPERM) { 1530 /* no privilege for reset */ 1531 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1532 "3150 No privilege to perform the requested " 1533 "access: x%x\n", reg_val); 1534 } else if (rc == -EIO) { 1535 /* reset failed, there is nothing more we can do */ 1536 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1537 "3153 Fail to perform the requested " 1538 "access: x%x\n", reg_val); 1539 return rc; 1540 } 1541 1542 /* keep the original port state */ 1543 if (before_fc_flag & FC_OFFLINE_MODE) 1544 goto out; 1545 1546 init_completion(&online_compl); 1547 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1548 LPFC_EVT_ONLINE); 1549 if (!job_posted) 1550 goto out; 1551 1552 wait_for_completion(&online_compl); 1553 1554 out: 1555 /* in any case, restore the virtual functions enabled as before */ 1556 if (sriov_nr_virtfn) { 1557 sriov_err = 1558 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1559 if (!sriov_err) 1560 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1561 } 1562 1563 /* return proper error code */ 1564 if (!rc) { 1565 if (!job_posted) 1566 rc = -ENOMEM; 1567 else if (status) 1568 rc = -EIO; 1569 } 1570 return rc; 1571 } 1572 1573 /** 1574 * lpfc_nport_evt_cnt_show - Return the number of nport events 1575 * @dev: class device that is converted into a Scsi_host. 1576 * @attr: device attribute, not used. 1577 * @buf: on return contains the ascii number of nport events. 1578 * 1579 * Returns: size of formatted string. 1580 **/ 1581 static ssize_t 1582 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1583 char *buf) 1584 { 1585 struct Scsi_Host *shost = class_to_shost(dev); 1586 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1587 struct lpfc_hba *phba = vport->phba; 1588 1589 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1590 } 1591 1592 int 1593 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1594 { 1595 LPFC_MBOXQ_t *mbox = NULL; 1596 unsigned long val = 0; 1597 char *pval = 0; 1598 int rc = 0; 1599 1600 if (!strncmp("enable", buff_out, 1601 strlen("enable"))) { 1602 pval = buff_out + strlen("enable") + 1; 1603 rc = kstrtoul(pval, 0, &val); 1604 if (rc) 1605 return rc; /* Invalid number */ 1606 } else if (!strncmp("disable", buff_out, 1607 strlen("disable"))) { 1608 val = 0; 1609 } else { 1610 return -EINVAL; /* Invalid command */ 1611 } 1612 1613 switch (val) { 1614 case 0: 1615 val = 0x0; /* Disable */ 1616 break; 1617 case 2: 1618 val = 0x1; /* Enable two port trunk */ 1619 break; 1620 case 4: 1621 val = 0x2; /* Enable four port trunk */ 1622 break; 1623 default: 1624 return -EINVAL; 1625 } 1626 1627 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1628 "0070 Set trunk mode with val %ld ", val); 1629 1630 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1631 if (!mbox) 1632 return -ENOMEM; 1633 1634 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1635 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1636 12, LPFC_SLI4_MBX_EMBED); 1637 1638 bf_set(lpfc_mbx_set_trunk_mode, 1639 &mbox->u.mqe.un.set_trunk_mode, 1640 val); 1641 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1642 if (rc) 1643 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1644 "0071 Set trunk mode failed with status: %d", 1645 rc); 1646 if (rc != MBX_TIMEOUT) 1647 mempool_free(mbox, phba->mbox_mem_pool); 1648 1649 return 0; 1650 } 1651 1652 /** 1653 * lpfc_board_mode_show - Return the state of the board 1654 * @dev: class device that is converted into a Scsi_host. 1655 * @attr: device attribute, not used. 1656 * @buf: on return contains the state of the adapter. 1657 * 1658 * Returns: size of formatted string. 1659 **/ 1660 static ssize_t 1661 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1662 char *buf) 1663 { 1664 struct Scsi_Host *shost = class_to_shost(dev); 1665 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1666 struct lpfc_hba *phba = vport->phba; 1667 char * state; 1668 1669 if (phba->link_state == LPFC_HBA_ERROR) 1670 state = "error"; 1671 else if (phba->link_state == LPFC_WARM_START) 1672 state = "warm start"; 1673 else if (phba->link_state == LPFC_INIT_START) 1674 state = "offline"; 1675 else 1676 state = "online"; 1677 1678 return snprintf(buf, PAGE_SIZE, "%s\n", state); 1679 } 1680 1681 /** 1682 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1683 * @dev: class device that is converted into a Scsi_host. 1684 * @attr: device attribute, not used. 1685 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1686 * @count: unused variable. 1687 * 1688 * Returns: 1689 * -EACCES if enable hba reset not enabled 1690 * -EINVAL if the buffer does not contain a valid string (see above) 1691 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1692 * buf length greater than zero indicates success 1693 **/ 1694 static ssize_t 1695 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1696 const char *buf, size_t count) 1697 { 1698 struct Scsi_Host *shost = class_to_shost(dev); 1699 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1700 struct lpfc_hba *phba = vport->phba; 1701 struct completion online_compl; 1702 char *board_mode_str = NULL; 1703 int status = 0; 1704 int rc; 1705 1706 if (!phba->cfg_enable_hba_reset) { 1707 status = -EACCES; 1708 goto board_mode_out; 1709 } 1710 1711 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1712 "3050 lpfc_board_mode set to %s\n", buf); 1713 1714 init_completion(&online_compl); 1715 1716 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1717 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1718 LPFC_EVT_ONLINE); 1719 if (rc == 0) { 1720 status = -ENOMEM; 1721 goto board_mode_out; 1722 } 1723 wait_for_completion(&online_compl); 1724 if (status) 1725 status = -EIO; 1726 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1727 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1728 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1729 if (phba->sli_rev == LPFC_SLI_REV4) 1730 status = -EINVAL; 1731 else 1732 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1733 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1734 if (phba->sli_rev == LPFC_SLI_REV4) 1735 status = -EINVAL; 1736 else 1737 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1738 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1739 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1740 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1741 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1742 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1743 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1744 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1745 == 0) 1746 status = lpfc_reset_pci_bus(phba); 1747 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1748 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1749 else 1750 status = -EINVAL; 1751 1752 board_mode_out: 1753 if (!status) 1754 return strlen(buf); 1755 else { 1756 board_mode_str = strchr(buf, '\n'); 1757 if (board_mode_str) 1758 *board_mode_str = '\0'; 1759 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1760 "3097 Failed \"%s\", status(%d), " 1761 "fc_flag(x%x)\n", 1762 buf, status, phba->pport->fc_flag); 1763 return status; 1764 } 1765 } 1766 1767 /** 1768 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1769 * @phba: pointer to the adapter structure. 1770 * @mxri: max xri count. 1771 * @axri: available xri count. 1772 * @mrpi: max rpi count. 1773 * @arpi: available rpi count. 1774 * @mvpi: max vpi count. 1775 * @avpi: available vpi count. 1776 * 1777 * Description: 1778 * If an integer pointer for an count is not null then the value for the 1779 * count is returned. 1780 * 1781 * Returns: 1782 * zero on error 1783 * one for success 1784 **/ 1785 static int 1786 lpfc_get_hba_info(struct lpfc_hba *phba, 1787 uint32_t *mxri, uint32_t *axri, 1788 uint32_t *mrpi, uint32_t *arpi, 1789 uint32_t *mvpi, uint32_t *avpi) 1790 { 1791 struct lpfc_mbx_read_config *rd_config; 1792 LPFC_MBOXQ_t *pmboxq; 1793 MAILBOX_t *pmb; 1794 int rc = 0; 1795 uint32_t max_vpi; 1796 1797 /* 1798 * prevent udev from issuing mailbox commands until the port is 1799 * configured. 1800 */ 1801 if (phba->link_state < LPFC_LINK_DOWN || 1802 !phba->mbox_mem_pool || 1803 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1804 return 0; 1805 1806 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1807 return 0; 1808 1809 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1810 if (!pmboxq) 1811 return 0; 1812 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1813 1814 pmb = &pmboxq->u.mb; 1815 pmb->mbxCommand = MBX_READ_CONFIG; 1816 pmb->mbxOwner = OWN_HOST; 1817 pmboxq->ctx_buf = NULL; 1818 1819 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1820 rc = MBX_NOT_FINISHED; 1821 else 1822 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1823 1824 if (rc != MBX_SUCCESS) { 1825 if (rc != MBX_TIMEOUT) 1826 mempool_free(pmboxq, phba->mbox_mem_pool); 1827 return 0; 1828 } 1829 1830 if (phba->sli_rev == LPFC_SLI_REV4) { 1831 rd_config = &pmboxq->u.mqe.un.rd_config; 1832 if (mrpi) 1833 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1834 if (arpi) 1835 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1836 phba->sli4_hba.max_cfg_param.rpi_used; 1837 if (mxri) 1838 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1839 if (axri) 1840 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1841 phba->sli4_hba.max_cfg_param.xri_used; 1842 1843 /* Account for differences with SLI-3. Get vpi count from 1844 * mailbox data and subtract one for max vpi value. 1845 */ 1846 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1847 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1848 1849 /* Limit the max we support */ 1850 if (max_vpi > LPFC_MAX_VPI) 1851 max_vpi = LPFC_MAX_VPI; 1852 if (mvpi) 1853 *mvpi = max_vpi; 1854 if (avpi) 1855 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1856 } else { 1857 if (mrpi) 1858 *mrpi = pmb->un.varRdConfig.max_rpi; 1859 if (arpi) 1860 *arpi = pmb->un.varRdConfig.avail_rpi; 1861 if (mxri) 1862 *mxri = pmb->un.varRdConfig.max_xri; 1863 if (axri) 1864 *axri = pmb->un.varRdConfig.avail_xri; 1865 if (mvpi) 1866 *mvpi = pmb->un.varRdConfig.max_vpi; 1867 if (avpi) { 1868 /* avail_vpi is only valid if link is up and ready */ 1869 if (phba->link_state == LPFC_HBA_READY) 1870 *avpi = pmb->un.varRdConfig.avail_vpi; 1871 else 1872 *avpi = pmb->un.varRdConfig.max_vpi; 1873 } 1874 } 1875 1876 mempool_free(pmboxq, phba->mbox_mem_pool); 1877 return 1; 1878 } 1879 1880 /** 1881 * lpfc_max_rpi_show - Return maximum rpi 1882 * @dev: class device that is converted into a Scsi_host. 1883 * @attr: device attribute, not used. 1884 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1885 * 1886 * Description: 1887 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1888 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1889 * to "Unknown" and the buffer length is returned, therefore the caller 1890 * must check for "Unknown" in the buffer to detect a failure. 1891 * 1892 * Returns: size of formatted string. 1893 **/ 1894 static ssize_t 1895 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1896 char *buf) 1897 { 1898 struct Scsi_Host *shost = class_to_shost(dev); 1899 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1900 struct lpfc_hba *phba = vport->phba; 1901 uint32_t cnt; 1902 1903 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1904 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1905 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1906 } 1907 1908 /** 1909 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1910 * @dev: class device that is converted into a Scsi_host. 1911 * @attr: device attribute, not used. 1912 * @buf: containing the used rpi count in decimal or "Unknown". 1913 * 1914 * Description: 1915 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1916 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1917 * to "Unknown" and the buffer length is returned, therefore the caller 1918 * must check for "Unknown" in the buffer to detect a failure. 1919 * 1920 * Returns: size of formatted string. 1921 **/ 1922 static ssize_t 1923 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1924 char *buf) 1925 { 1926 struct Scsi_Host *shost = class_to_shost(dev); 1927 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1928 struct lpfc_hba *phba = vport->phba; 1929 uint32_t cnt, acnt; 1930 1931 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1932 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1933 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1934 } 1935 1936 /** 1937 * lpfc_max_xri_show - Return maximum xri 1938 * @dev: class device that is converted into a Scsi_host. 1939 * @attr: device attribute, not used. 1940 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1941 * 1942 * Description: 1943 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1944 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1945 * to "Unknown" and the buffer length is returned, therefore the caller 1946 * must check for "Unknown" in the buffer to detect a failure. 1947 * 1948 * Returns: size of formatted string. 1949 **/ 1950 static ssize_t 1951 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1952 char *buf) 1953 { 1954 struct Scsi_Host *shost = class_to_shost(dev); 1955 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1956 struct lpfc_hba *phba = vport->phba; 1957 uint32_t cnt; 1958 1959 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 1960 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 1961 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1962 } 1963 1964 /** 1965 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 1966 * @dev: class device that is converted into a Scsi_host. 1967 * @attr: device attribute, not used. 1968 * @buf: on return contains the used xri count in decimal or "Unknown". 1969 * 1970 * Description: 1971 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 1972 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1973 * to "Unknown" and the buffer length is returned, therefore the caller 1974 * must check for "Unknown" in the buffer to detect a failure. 1975 * 1976 * Returns: size of formatted string. 1977 **/ 1978 static ssize_t 1979 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 1980 char *buf) 1981 { 1982 struct Scsi_Host *shost = class_to_shost(dev); 1983 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1984 struct lpfc_hba *phba = vport->phba; 1985 uint32_t cnt, acnt; 1986 1987 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 1988 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1989 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 1990 } 1991 1992 /** 1993 * lpfc_max_vpi_show - Return maximum vpi 1994 * @dev: class device that is converted into a Scsi_host. 1995 * @attr: device attribute, not used. 1996 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 1997 * 1998 * Description: 1999 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2000 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2001 * to "Unknown" and the buffer length is returned, therefore the caller 2002 * must check for "Unknown" in the buffer to detect a failure. 2003 * 2004 * Returns: size of formatted string. 2005 **/ 2006 static ssize_t 2007 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2008 char *buf) 2009 { 2010 struct Scsi_Host *shost = class_to_shost(dev); 2011 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2012 struct lpfc_hba *phba = vport->phba; 2013 uint32_t cnt; 2014 2015 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2016 return snprintf(buf, PAGE_SIZE, "%d\n", cnt); 2017 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 2018 } 2019 2020 /** 2021 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2022 * @dev: class device that is converted into a Scsi_host. 2023 * @attr: device attribute, not used. 2024 * @buf: on return contains the used vpi count in decimal or "Unknown". 2025 * 2026 * Description: 2027 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2028 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2029 * to "Unknown" and the buffer length is returned, therefore the caller 2030 * must check for "Unknown" in the buffer to detect a failure. 2031 * 2032 * Returns: size of formatted string. 2033 **/ 2034 static ssize_t 2035 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2036 char *buf) 2037 { 2038 struct Scsi_Host *shost = class_to_shost(dev); 2039 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2040 struct lpfc_hba *phba = vport->phba; 2041 uint32_t cnt, acnt; 2042 2043 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2044 return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2045 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 2046 } 2047 2048 /** 2049 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2050 * @dev: class device that is converted into a Scsi_host. 2051 * @attr: device attribute, not used. 2052 * @buf: text that must be interpreted to determine if npiv is supported. 2053 * 2054 * Description: 2055 * Buffer will contain text indicating npiv is not suppoerted on the port, 2056 * the port is an NPIV physical port, or it is an npiv virtual port with 2057 * the id of the vport. 2058 * 2059 * Returns: size of formatted string. 2060 **/ 2061 static ssize_t 2062 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2063 char *buf) 2064 { 2065 struct Scsi_Host *shost = class_to_shost(dev); 2066 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2067 struct lpfc_hba *phba = vport->phba; 2068 2069 if (!(phba->max_vpi)) 2070 return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2071 if (vport->port_type == LPFC_PHYSICAL_PORT) 2072 return snprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2073 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2074 } 2075 2076 /** 2077 * lpfc_poll_show - Return text about poll support for the adapter 2078 * @dev: class device that is converted into a Scsi_host. 2079 * @attr: device attribute, not used. 2080 * @buf: on return contains the cfg_poll in hex. 2081 * 2082 * Notes: 2083 * cfg_poll should be a lpfc_polling_flags type. 2084 * 2085 * Returns: size of formatted string. 2086 **/ 2087 static ssize_t 2088 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2089 char *buf) 2090 { 2091 struct Scsi_Host *shost = class_to_shost(dev); 2092 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2093 struct lpfc_hba *phba = vport->phba; 2094 2095 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2096 } 2097 2098 /** 2099 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2100 * @dev: class device that is converted into a Scsi_host. 2101 * @attr: device attribute, not used. 2102 * @buf: one or more lpfc_polling_flags values. 2103 * @count: not used. 2104 * 2105 * Notes: 2106 * buf contents converted to integer and checked for a valid value. 2107 * 2108 * Returns: 2109 * -EINVAL if the buffer connot be converted or is out of range 2110 * length of the buf on success 2111 **/ 2112 static ssize_t 2113 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2114 const char *buf, size_t count) 2115 { 2116 struct Scsi_Host *shost = class_to_shost(dev); 2117 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2118 struct lpfc_hba *phba = vport->phba; 2119 uint32_t creg_val; 2120 uint32_t old_val; 2121 int val=0; 2122 2123 if (!isdigit(buf[0])) 2124 return -EINVAL; 2125 2126 if (sscanf(buf, "%i", &val) != 1) 2127 return -EINVAL; 2128 2129 if ((val & 0x3) != val) 2130 return -EINVAL; 2131 2132 if (phba->sli_rev == LPFC_SLI_REV4) 2133 val = 0; 2134 2135 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2136 "3051 lpfc_poll changed from %d to %d\n", 2137 phba->cfg_poll, val); 2138 2139 spin_lock_irq(&phba->hbalock); 2140 2141 old_val = phba->cfg_poll; 2142 2143 if (val & ENABLE_FCP_RING_POLLING) { 2144 if ((val & DISABLE_FCP_RING_INT) && 2145 !(old_val & DISABLE_FCP_RING_INT)) { 2146 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2147 spin_unlock_irq(&phba->hbalock); 2148 return -EINVAL; 2149 } 2150 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2151 writel(creg_val, phba->HCregaddr); 2152 readl(phba->HCregaddr); /* flush */ 2153 2154 lpfc_poll_start_timer(phba); 2155 } 2156 } else if (val != 0x0) { 2157 spin_unlock_irq(&phba->hbalock); 2158 return -EINVAL; 2159 } 2160 2161 if (!(val & DISABLE_FCP_RING_INT) && 2162 (old_val & DISABLE_FCP_RING_INT)) 2163 { 2164 spin_unlock_irq(&phba->hbalock); 2165 del_timer(&phba->fcp_poll_timer); 2166 spin_lock_irq(&phba->hbalock); 2167 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2168 spin_unlock_irq(&phba->hbalock); 2169 return -EINVAL; 2170 } 2171 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2172 writel(creg_val, phba->HCregaddr); 2173 readl(phba->HCregaddr); /* flush */ 2174 } 2175 2176 phba->cfg_poll = val; 2177 2178 spin_unlock_irq(&phba->hbalock); 2179 2180 return strlen(buf); 2181 } 2182 2183 /** 2184 * lpfc_fips_level_show - Return the current FIPS level for the HBA 2185 * @dev: class unused variable. 2186 * @attr: device attribute, not used. 2187 * @buf: on return contains the module description text. 2188 * 2189 * Returns: size of formatted string. 2190 **/ 2191 static ssize_t 2192 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 2193 char *buf) 2194 { 2195 struct Scsi_Host *shost = class_to_shost(dev); 2196 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2197 struct lpfc_hba *phba = vport->phba; 2198 2199 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 2200 } 2201 2202 /** 2203 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 2204 * @dev: class unused variable. 2205 * @attr: device attribute, not used. 2206 * @buf: on return contains the module description text. 2207 * 2208 * Returns: size of formatted string. 2209 **/ 2210 static ssize_t 2211 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 2212 char *buf) 2213 { 2214 struct Scsi_Host *shost = class_to_shost(dev); 2215 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2216 struct lpfc_hba *phba = vport->phba; 2217 2218 return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 2219 } 2220 2221 /** 2222 * lpfc_dss_show - Return the current state of dss and the configured state 2223 * @dev: class converted to a Scsi_host structure. 2224 * @attr: device attribute, not used. 2225 * @buf: on return contains the formatted text. 2226 * 2227 * Returns: size of formatted string. 2228 **/ 2229 static ssize_t 2230 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 2231 char *buf) 2232 { 2233 struct Scsi_Host *shost = class_to_shost(dev); 2234 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2235 struct lpfc_hba *phba = vport->phba; 2236 2237 return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 2238 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 2239 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 2240 "" : "Not "); 2241 } 2242 2243 /** 2244 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2245 * @dev: class converted to a Scsi_host structure. 2246 * @attr: device attribute, not used. 2247 * @buf: on return contains the formatted support level. 2248 * 2249 * Description: 2250 * Returns the maximum number of virtual functions a physical function can 2251 * support, 0 will be returned if called on virtual function. 2252 * 2253 * Returns: size of formatted string. 2254 **/ 2255 static ssize_t 2256 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2257 struct device_attribute *attr, 2258 char *buf) 2259 { 2260 struct Scsi_Host *shost = class_to_shost(dev); 2261 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2262 struct lpfc_hba *phba = vport->phba; 2263 uint16_t max_nr_virtfn; 2264 2265 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2266 return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2267 } 2268 2269 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2270 { 2271 return val >= min && val <= max; 2272 } 2273 2274 /** 2275 * lpfc_enable_bbcr_set: Sets an attribute value. 2276 * @phba: pointer the the adapter structure. 2277 * @val: integer attribute value. 2278 * 2279 * Description: 2280 * Validates the min and max values then sets the 2281 * adapter config field if in the valid range. prints error message 2282 * and does not set the parameter if invalid. 2283 * 2284 * Returns: 2285 * zero on success 2286 * -EINVAL if val is invalid 2287 */ 2288 static ssize_t 2289 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2290 { 2291 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2293 "3068 %s_enable_bbcr changed from %d to %d\n", 2294 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2295 phba->cfg_enable_bbcr = val; 2296 return 0; 2297 } 2298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2299 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2300 LPFC_DRIVER_NAME, val); 2301 return -EINVAL; 2302 } 2303 2304 /** 2305 * lpfc_param_show - Return a cfg attribute value in decimal 2306 * 2307 * Description: 2308 * Macro that given an attr e.g. hba_queue_depth expands 2309 * into a function with the name lpfc_hba_queue_depth_show. 2310 * 2311 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2312 * @dev: class device that is converted into a Scsi_host. 2313 * @attr: device attribute, not used. 2314 * @buf: on return contains the attribute value in decimal. 2315 * 2316 * Returns: size of formatted string. 2317 **/ 2318 #define lpfc_param_show(attr) \ 2319 static ssize_t \ 2320 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2321 char *buf) \ 2322 { \ 2323 struct Scsi_Host *shost = class_to_shost(dev);\ 2324 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2325 struct lpfc_hba *phba = vport->phba;\ 2326 return snprintf(buf, PAGE_SIZE, "%d\n",\ 2327 phba->cfg_##attr);\ 2328 } 2329 2330 /** 2331 * lpfc_param_hex_show - Return a cfg attribute value in hex 2332 * 2333 * Description: 2334 * Macro that given an attr e.g. hba_queue_depth expands 2335 * into a function with the name lpfc_hba_queue_depth_show 2336 * 2337 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2338 * @dev: class device that is converted into a Scsi_host. 2339 * @attr: device attribute, not used. 2340 * @buf: on return contains the attribute value in hexadecimal. 2341 * 2342 * Returns: size of formatted string. 2343 **/ 2344 #define lpfc_param_hex_show(attr) \ 2345 static ssize_t \ 2346 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2347 char *buf) \ 2348 { \ 2349 struct Scsi_Host *shost = class_to_shost(dev);\ 2350 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2351 struct lpfc_hba *phba = vport->phba;\ 2352 uint val = 0;\ 2353 val = phba->cfg_##attr;\ 2354 return snprintf(buf, PAGE_SIZE, "%#x\n",\ 2355 phba->cfg_##attr);\ 2356 } 2357 2358 /** 2359 * lpfc_param_init - Initializes a cfg attribute 2360 * 2361 * Description: 2362 * Macro that given an attr e.g. hba_queue_depth expands 2363 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2364 * takes a default argument, a minimum and maximum argument. 2365 * 2366 * lpfc_##attr##_init: Initializes an attribute. 2367 * @phba: pointer the the adapter structure. 2368 * @val: integer attribute value. 2369 * 2370 * Validates the min and max values then sets the adapter config field 2371 * accordingly, or uses the default if out of range and prints an error message. 2372 * 2373 * Returns: 2374 * zero on success 2375 * -EINVAL if default used 2376 **/ 2377 #define lpfc_param_init(attr, default, minval, maxval) \ 2378 static int \ 2379 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2380 { \ 2381 if (lpfc_rangecheck(val, minval, maxval)) {\ 2382 phba->cfg_##attr = val;\ 2383 return 0;\ 2384 }\ 2385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2386 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2387 "allowed range is ["#minval", "#maxval"]\n", val); \ 2388 phba->cfg_##attr = default;\ 2389 return -EINVAL;\ 2390 } 2391 2392 /** 2393 * lpfc_param_set - Set a cfg attribute value 2394 * 2395 * Description: 2396 * Macro that given an attr e.g. hba_queue_depth expands 2397 * into a function with the name lpfc_hba_queue_depth_set 2398 * 2399 * lpfc_##attr##_set: Sets an attribute value. 2400 * @phba: pointer the the adapter structure. 2401 * @val: integer attribute value. 2402 * 2403 * Description: 2404 * Validates the min and max values then sets the 2405 * adapter config field if in the valid range. prints error message 2406 * and does not set the parameter if invalid. 2407 * 2408 * Returns: 2409 * zero on success 2410 * -EINVAL if val is invalid 2411 **/ 2412 #define lpfc_param_set(attr, default, minval, maxval) \ 2413 static int \ 2414 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2415 { \ 2416 if (lpfc_rangecheck(val, minval, maxval)) {\ 2417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2418 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2419 phba->cfg_##attr, val); \ 2420 phba->cfg_##attr = val;\ 2421 return 0;\ 2422 }\ 2423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2424 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2425 "allowed range is ["#minval", "#maxval"]\n", val); \ 2426 return -EINVAL;\ 2427 } 2428 2429 /** 2430 * lpfc_param_store - Set a vport attribute value 2431 * 2432 * Description: 2433 * Macro that given an attr e.g. hba_queue_depth expands 2434 * into a function with the name lpfc_hba_queue_depth_store. 2435 * 2436 * lpfc_##attr##_store: Set an sttribute value. 2437 * @dev: class device that is converted into a Scsi_host. 2438 * @attr: device attribute, not used. 2439 * @buf: contains the attribute value in ascii. 2440 * @count: not used. 2441 * 2442 * Description: 2443 * Convert the ascii text number to an integer, then 2444 * use the lpfc_##attr##_set function to set the value. 2445 * 2446 * Returns: 2447 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2448 * length of buffer upon success. 2449 **/ 2450 #define lpfc_param_store(attr) \ 2451 static ssize_t \ 2452 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2453 const char *buf, size_t count) \ 2454 { \ 2455 struct Scsi_Host *shost = class_to_shost(dev);\ 2456 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2457 struct lpfc_hba *phba = vport->phba;\ 2458 uint val = 0;\ 2459 if (!isdigit(buf[0]))\ 2460 return -EINVAL;\ 2461 if (sscanf(buf, "%i", &val) != 1)\ 2462 return -EINVAL;\ 2463 if (lpfc_##attr##_set(phba, val) == 0) \ 2464 return strlen(buf);\ 2465 else \ 2466 return -EINVAL;\ 2467 } 2468 2469 /** 2470 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2471 * 2472 * Description: 2473 * Macro that given an attr e.g. hba_queue_depth expands 2474 * into a function with the name lpfc_hba_queue_depth_show 2475 * 2476 * lpfc_##attr##_show: prints the attribute value in decimal. 2477 * @dev: class device that is converted into a Scsi_host. 2478 * @attr: device attribute, not used. 2479 * @buf: on return contains the attribute value in decimal. 2480 * 2481 * Returns: length of formatted string. 2482 **/ 2483 #define lpfc_vport_param_show(attr) \ 2484 static ssize_t \ 2485 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2486 char *buf) \ 2487 { \ 2488 struct Scsi_Host *shost = class_to_shost(dev);\ 2489 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2490 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2491 } 2492 2493 /** 2494 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2495 * 2496 * Description: 2497 * Macro that given an attr e.g. 2498 * hba_queue_depth expands into a function with the name 2499 * lpfc_hba_queue_depth_show 2500 * 2501 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2502 * @dev: class device that is converted into a Scsi_host. 2503 * @attr: device attribute, not used. 2504 * @buf: on return contains the attribute value in hexadecimal. 2505 * 2506 * Returns: length of formatted string. 2507 **/ 2508 #define lpfc_vport_param_hex_show(attr) \ 2509 static ssize_t \ 2510 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2511 char *buf) \ 2512 { \ 2513 struct Scsi_Host *shost = class_to_shost(dev);\ 2514 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2515 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2516 } 2517 2518 /** 2519 * lpfc_vport_param_init - Initialize a vport cfg attribute 2520 * 2521 * Description: 2522 * Macro that given an attr e.g. hba_queue_depth expands 2523 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2524 * takes a default argument, a minimum and maximum argument. 2525 * 2526 * lpfc_##attr##_init: validates the min and max values then sets the 2527 * adapter config field accordingly, or uses the default if out of range 2528 * and prints an error message. 2529 * @phba: pointer the the adapter structure. 2530 * @val: integer attribute value. 2531 * 2532 * Returns: 2533 * zero on success 2534 * -EINVAL if default used 2535 **/ 2536 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2537 static int \ 2538 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2539 { \ 2540 if (lpfc_rangecheck(val, minval, maxval)) {\ 2541 vport->cfg_##attr = val;\ 2542 return 0;\ 2543 }\ 2544 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2545 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2546 "allowed range is ["#minval", "#maxval"]\n", val); \ 2547 vport->cfg_##attr = default;\ 2548 return -EINVAL;\ 2549 } 2550 2551 /** 2552 * lpfc_vport_param_set - Set a vport cfg attribute 2553 * 2554 * Description: 2555 * Macro that given an attr e.g. hba_queue_depth expands 2556 * into a function with the name lpfc_hba_queue_depth_set 2557 * 2558 * lpfc_##attr##_set: validates the min and max values then sets the 2559 * adapter config field if in the valid range. prints error message 2560 * and does not set the parameter if invalid. 2561 * @phba: pointer the the adapter structure. 2562 * @val: integer attribute value. 2563 * 2564 * Returns: 2565 * zero on success 2566 * -EINVAL if val is invalid 2567 **/ 2568 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2569 static int \ 2570 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2571 { \ 2572 if (lpfc_rangecheck(val, minval, maxval)) {\ 2573 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2574 "3053 lpfc_" #attr \ 2575 " changed from %d (x%x) to %d (x%x)\n", \ 2576 vport->cfg_##attr, vport->cfg_##attr, \ 2577 val, val); \ 2578 vport->cfg_##attr = val;\ 2579 return 0;\ 2580 }\ 2581 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2582 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2583 "allowed range is ["#minval", "#maxval"]\n", val); \ 2584 return -EINVAL;\ 2585 } 2586 2587 /** 2588 * lpfc_vport_param_store - Set a vport attribute 2589 * 2590 * Description: 2591 * Macro that given an attr e.g. hba_queue_depth 2592 * expands into a function with the name lpfc_hba_queue_depth_store 2593 * 2594 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2595 * use the lpfc_##attr##_set function to set the value. 2596 * @cdev: class device that is converted into a Scsi_host. 2597 * @buf: contains the attribute value in decimal. 2598 * @count: not used. 2599 * 2600 * Returns: 2601 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2602 * length of buffer upon success. 2603 **/ 2604 #define lpfc_vport_param_store(attr) \ 2605 static ssize_t \ 2606 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2607 const char *buf, size_t count) \ 2608 { \ 2609 struct Scsi_Host *shost = class_to_shost(dev);\ 2610 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2611 uint val = 0;\ 2612 if (!isdigit(buf[0]))\ 2613 return -EINVAL;\ 2614 if (sscanf(buf, "%i", &val) != 1)\ 2615 return -EINVAL;\ 2616 if (lpfc_##attr##_set(vport, val) == 0) \ 2617 return strlen(buf);\ 2618 else \ 2619 return -EINVAL;\ 2620 } 2621 2622 2623 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2624 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2625 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2626 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2627 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2628 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2629 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2630 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2631 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2632 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2633 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2634 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2635 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2636 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2637 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2638 lpfc_link_state_store); 2639 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2640 lpfc_option_rom_version_show, NULL); 2641 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2642 lpfc_num_discovered_ports_show, NULL); 2643 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2644 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2645 static DEVICE_ATTR_RO(lpfc_drvr_version); 2646 static DEVICE_ATTR_RO(lpfc_enable_fip); 2647 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2648 lpfc_board_mode_show, lpfc_board_mode_store); 2649 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2650 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2651 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2652 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2653 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2654 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2655 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2656 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2657 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2658 static DEVICE_ATTR_RO(lpfc_fips_level); 2659 static DEVICE_ATTR_RO(lpfc_fips_rev); 2660 static DEVICE_ATTR_RO(lpfc_dss); 2661 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2662 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2663 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2664 NULL); 2665 2666 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2667 #define WWN_SZ 8 2668 /** 2669 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2670 * @buf: WWN string. 2671 * @cnt: Length of string. 2672 * @wwn: Array to receive converted wwn value. 2673 * 2674 * Returns: 2675 * -EINVAL if the buffer does not contain a valid wwn 2676 * 0 success 2677 **/ 2678 static size_t 2679 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2680 { 2681 unsigned int i, j; 2682 2683 /* Count may include a LF at end of string */ 2684 if (buf[cnt-1] == '\n') 2685 cnt--; 2686 2687 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2688 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2689 return -EINVAL; 2690 2691 memset(wwn, 0, WWN_SZ); 2692 2693 /* Validate and store the new name */ 2694 for (i = 0, j = 0; i < 16; i++) { 2695 if ((*buf >= 'a') && (*buf <= 'f')) 2696 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2697 else if ((*buf >= 'A') && (*buf <= 'F')) 2698 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2699 else if ((*buf >= '0') && (*buf <= '9')) 2700 j = ((j << 4) | (*buf++ - '0')); 2701 else 2702 return -EINVAL; 2703 if (i % 2) { 2704 wwn[i/2] = j & 0xff; 2705 j = 0; 2706 } 2707 } 2708 return 0; 2709 } 2710 /** 2711 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2712 * @dev: class device that is converted into a Scsi_host. 2713 * @attr: device attribute, not used. 2714 * @buf: containing the string lpfc_soft_wwn_key. 2715 * @count: must be size of lpfc_soft_wwn_key. 2716 * 2717 * Returns: 2718 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2719 * length of buf indicates success 2720 **/ 2721 static ssize_t 2722 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2723 const char *buf, size_t count) 2724 { 2725 struct Scsi_Host *shost = class_to_shost(dev); 2726 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2727 struct lpfc_hba *phba = vport->phba; 2728 unsigned int cnt = count; 2729 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2730 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2731 2732 /* 2733 * We're doing a simple sanity check for soft_wwpn setting. 2734 * We require that the user write a specific key to enable 2735 * the soft_wwpn attribute to be settable. Once the attribute 2736 * is written, the enable key resets. If further updates are 2737 * desired, the key must be written again to re-enable the 2738 * attribute. 2739 * 2740 * The "key" is not secret - it is a hardcoded string shown 2741 * here. The intent is to protect against the random user or 2742 * application that is just writing attributes. 2743 */ 2744 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2746 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2747 " be enabled: fawwpn is enabled\n"); 2748 return -EINVAL; 2749 } 2750 2751 /* count may include a LF at end of string */ 2752 if (buf[cnt-1] == '\n') 2753 cnt--; 2754 2755 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2756 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2757 return -EINVAL; 2758 2759 phba->soft_wwn_enable = 1; 2760 2761 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2762 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2763 phba->brd_no); 2764 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2765 " The soft_wwpn feature is not supported by Broadcom."); 2766 2767 return count; 2768 } 2769 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2770 2771 /** 2772 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2773 * @dev: class device that is converted into a Scsi_host. 2774 * @attr: device attribute, not used. 2775 * @buf: on return contains the wwpn in hexadecimal. 2776 * 2777 * Returns: size of formatted string. 2778 **/ 2779 static ssize_t 2780 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2781 char *buf) 2782 { 2783 struct Scsi_Host *shost = class_to_shost(dev); 2784 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2785 struct lpfc_hba *phba = vport->phba; 2786 2787 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2788 (unsigned long long)phba->cfg_soft_wwpn); 2789 } 2790 2791 /** 2792 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2793 * @dev class device that is converted into a Scsi_host. 2794 * @attr: device attribute, not used. 2795 * @buf: contains the wwpn in hexadecimal. 2796 * @count: number of wwpn bytes in buf 2797 * 2798 * Returns: 2799 * -EACCES hba reset not enabled, adapter over temp 2800 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2801 * -EIO error taking adapter offline or online 2802 * value of count on success 2803 **/ 2804 static ssize_t 2805 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2806 const char *buf, size_t count) 2807 { 2808 struct Scsi_Host *shost = class_to_shost(dev); 2809 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2810 struct lpfc_hba *phba = vport->phba; 2811 struct completion online_compl; 2812 int stat1 = 0, stat2 = 0; 2813 unsigned int cnt = count; 2814 u8 wwpn[WWN_SZ]; 2815 int rc; 2816 2817 if (!phba->cfg_enable_hba_reset) 2818 return -EACCES; 2819 spin_lock_irq(&phba->hbalock); 2820 if (phba->over_temp_state == HBA_OVER_TEMP) { 2821 spin_unlock_irq(&phba->hbalock); 2822 return -EACCES; 2823 } 2824 spin_unlock_irq(&phba->hbalock); 2825 /* count may include a LF at end of string */ 2826 if (buf[cnt-1] == '\n') 2827 cnt--; 2828 2829 if (!phba->soft_wwn_enable) 2830 return -EINVAL; 2831 2832 /* lock setting wwpn, wwnn down */ 2833 phba->soft_wwn_enable = 0; 2834 2835 rc = lpfc_wwn_set(buf, cnt, wwpn); 2836 if (rc) { 2837 /* not able to set wwpn, unlock it */ 2838 phba->soft_wwn_enable = 1; 2839 return rc; 2840 } 2841 2842 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2843 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2844 if (phba->cfg_soft_wwnn) 2845 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2846 2847 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2848 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2849 2850 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2851 if (stat1) 2852 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2853 "0463 lpfc_soft_wwpn attribute set failed to " 2854 "reinit adapter - %d\n", stat1); 2855 init_completion(&online_compl); 2856 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2857 LPFC_EVT_ONLINE); 2858 if (rc == 0) 2859 return -ENOMEM; 2860 2861 wait_for_completion(&online_compl); 2862 if (stat2) 2863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2864 "0464 lpfc_soft_wwpn attribute set failed to " 2865 "reinit adapter - %d\n", stat2); 2866 return (stat1 || stat2) ? -EIO : count; 2867 } 2868 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2869 2870 /** 2871 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2872 * @dev: class device that is converted into a Scsi_host. 2873 * @attr: device attribute, not used. 2874 * @buf: on return contains the wwnn in hexadecimal. 2875 * 2876 * Returns: size of formatted string. 2877 **/ 2878 static ssize_t 2879 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2880 char *buf) 2881 { 2882 struct Scsi_Host *shost = class_to_shost(dev); 2883 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2884 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2885 (unsigned long long)phba->cfg_soft_wwnn); 2886 } 2887 2888 /** 2889 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2890 * @cdev: class device that is converted into a Scsi_host. 2891 * @buf: contains the ww node name in hexadecimal. 2892 * @count: number of wwnn bytes in buf. 2893 * 2894 * Returns: 2895 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2896 * value of count on success 2897 **/ 2898 static ssize_t 2899 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2900 const char *buf, size_t count) 2901 { 2902 struct Scsi_Host *shost = class_to_shost(dev); 2903 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2904 unsigned int cnt = count; 2905 u8 wwnn[WWN_SZ]; 2906 int rc; 2907 2908 /* count may include a LF at end of string */ 2909 if (buf[cnt-1] == '\n') 2910 cnt--; 2911 2912 if (!phba->soft_wwn_enable) 2913 return -EINVAL; 2914 2915 rc = lpfc_wwn_set(buf, cnt, wwnn); 2916 if (rc) { 2917 /* Allow wwnn to be set many times, as long as the enable 2918 * is set. However, once the wwpn is set, everything locks. 2919 */ 2920 return rc; 2921 } 2922 2923 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2924 2925 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2926 "lpfc%d: soft_wwnn set. Value will take effect upon " 2927 "setting of the soft_wwpn\n", phba->brd_no); 2928 2929 return count; 2930 } 2931 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2932 2933 /** 2934 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2935 * Optimized Access Storage (OAS) operations. 2936 * @dev: class device that is converted into a Scsi_host. 2937 * @attr: device attribute, not used. 2938 * @buf: buffer for passing information. 2939 * 2940 * Returns: 2941 * value of count 2942 **/ 2943 static ssize_t 2944 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2945 char *buf) 2946 { 2947 struct Scsi_Host *shost = class_to_shost(dev); 2948 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2949 2950 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 2951 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2952 } 2953 2954 /** 2955 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2956 * Optimized Access Storage (OAS) operations. 2957 * @dev: class device that is converted into a Scsi_host. 2958 * @attr: device attribute, not used. 2959 * @buf: buffer for passing information. 2960 * @count: Size of the data buffer. 2961 * 2962 * Returns: 2963 * -EINVAL count is invalid, invalid wwpn byte invalid 2964 * -EPERM oas is not supported by hba 2965 * value of count on success 2966 **/ 2967 static ssize_t 2968 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2969 const char *buf, size_t count) 2970 { 2971 struct Scsi_Host *shost = class_to_shost(dev); 2972 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2973 unsigned int cnt = count; 2974 uint8_t wwpn[WWN_SZ]; 2975 int rc; 2976 2977 if (!phba->cfg_fof) 2978 return -EPERM; 2979 2980 /* count may include a LF at end of string */ 2981 if (buf[cnt-1] == '\n') 2982 cnt--; 2983 2984 rc = lpfc_wwn_set(buf, cnt, wwpn); 2985 if (rc) 2986 return rc; 2987 2988 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2989 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2990 if (wwn_to_u64(wwpn) == 0) 2991 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2992 else 2993 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2994 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2995 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2996 return count; 2997 } 2998 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2999 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3000 3001 /** 3002 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3003 * Optimized Access Storage (OAS) operations. 3004 * @dev: class device that is converted into a Scsi_host. 3005 * @attr: device attribute, not used. 3006 * @buf: buffer for passing information. 3007 * 3008 * Returns: 3009 * value of count 3010 **/ 3011 static ssize_t 3012 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3013 char *buf) 3014 { 3015 struct Scsi_Host *shost = class_to_shost(dev); 3016 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3017 3018 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3019 } 3020 3021 /** 3022 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3023 * Optimized Access Storage (OAS) operations. 3024 * @dev: class device that is converted into a Scsi_host. 3025 * @attr: device attribute, not used. 3026 * @buf: buffer for passing information. 3027 * @count: Size of the data buffer. 3028 * 3029 * Returns: 3030 * -EINVAL count is invalid, invalid wwpn byte invalid 3031 * -EPERM oas is not supported by hba 3032 * value of count on success 3033 **/ 3034 static ssize_t 3035 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3036 const char *buf, size_t count) 3037 { 3038 struct Scsi_Host *shost = class_to_shost(dev); 3039 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3040 unsigned int cnt = count; 3041 unsigned long val; 3042 int ret; 3043 3044 if (!phba->cfg_fof) 3045 return -EPERM; 3046 3047 /* count may include a LF at end of string */ 3048 if (buf[cnt-1] == '\n') 3049 cnt--; 3050 3051 ret = kstrtoul(buf, 0, &val); 3052 if (ret || (val > 0x7f)) 3053 return -EINVAL; 3054 3055 if (val) 3056 phba->cfg_oas_priority = (uint8_t)val; 3057 else 3058 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3059 return count; 3060 } 3061 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3062 lpfc_oas_priority_show, lpfc_oas_priority_store); 3063 3064 /** 3065 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3066 * for Optimized Access Storage (OAS) operations. 3067 * @dev: class device that is converted into a Scsi_host. 3068 * @attr: device attribute, not used. 3069 * @buf: buffer for passing information. 3070 * 3071 * Returns: 3072 * value of count on success 3073 **/ 3074 static ssize_t 3075 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3076 char *buf) 3077 { 3078 struct Scsi_Host *shost = class_to_shost(dev); 3079 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3080 3081 return snprintf(buf, PAGE_SIZE, "0x%llx\n", 3082 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3083 } 3084 3085 /** 3086 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3087 * for Optimized Access Storage (OAS) operations. 3088 * @dev: class device that is converted into a Scsi_host. 3089 * @attr: device attribute, not used. 3090 * @buf: buffer for passing information. 3091 * @count: Size of the data buffer. 3092 * 3093 * Returns: 3094 * -EINVAL count is invalid, invalid wwpn byte invalid 3095 * -EPERM oas is not supported by hba 3096 * value of count on success 3097 **/ 3098 static ssize_t 3099 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3100 const char *buf, size_t count) 3101 { 3102 struct Scsi_Host *shost = class_to_shost(dev); 3103 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3104 unsigned int cnt = count; 3105 uint8_t wwpn[WWN_SZ]; 3106 int rc; 3107 3108 if (!phba->cfg_fof) 3109 return -EPERM; 3110 3111 /* count may include a LF at end of string */ 3112 if (buf[cnt-1] == '\n') 3113 cnt--; 3114 3115 rc = lpfc_wwn_set(buf, cnt, wwpn); 3116 if (rc) 3117 return rc; 3118 3119 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3120 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3121 if (wwn_to_u64(wwpn) == 0) 3122 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3123 else 3124 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3125 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3126 if (phba->cfg_oas_priority == 0) 3127 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3128 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3129 return count; 3130 } 3131 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3132 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3133 3134 /** 3135 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3136 * of whether luns will be enabled or disabled 3137 * for Optimized Access Storage (OAS) operations. 3138 * @dev: class device that is converted into a Scsi_host. 3139 * @attr: device attribute, not used. 3140 * @buf: buffer for passing information. 3141 * 3142 * Returns: 3143 * size of formatted string. 3144 **/ 3145 static ssize_t 3146 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3147 char *buf) 3148 { 3149 struct Scsi_Host *shost = class_to_shost(dev); 3150 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3151 3152 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3153 } 3154 3155 /** 3156 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3157 * of whether luns will be enabled or disabled 3158 * for Optimized Access Storage (OAS) operations. 3159 * @dev: class device that is converted into a Scsi_host. 3160 * @attr: device attribute, not used. 3161 * @buf: buffer for passing information. 3162 * @count: Size of the data buffer. 3163 * 3164 * Returns: 3165 * -EINVAL count is invalid, invalid wwpn byte invalid 3166 * -EPERM oas is not supported by hba 3167 * value of count on success 3168 **/ 3169 static ssize_t 3170 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3171 const char *buf, size_t count) 3172 { 3173 struct Scsi_Host *shost = class_to_shost(dev); 3174 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3175 int val = 0; 3176 3177 if (!phba->cfg_fof) 3178 return -EPERM; 3179 3180 if (!isdigit(buf[0])) 3181 return -EINVAL; 3182 3183 if (sscanf(buf, "%i", &val) != 1) 3184 return -EINVAL; 3185 3186 if ((val != 0) && (val != 1)) 3187 return -EINVAL; 3188 3189 phba->cfg_oas_lun_state = val; 3190 return strlen(buf); 3191 } 3192 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3193 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3194 3195 /** 3196 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3197 * Storage (OAS) lun returned by the 3198 * lpfc_oas_lun_show function. 3199 * @dev: class device that is converted into a Scsi_host. 3200 * @attr: device attribute, not used. 3201 * @buf: buffer for passing information. 3202 * 3203 * Returns: 3204 * size of formatted string. 3205 **/ 3206 static ssize_t 3207 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3208 char *buf) 3209 { 3210 struct Scsi_Host *shost = class_to_shost(dev); 3211 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3212 3213 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3214 return -EFAULT; 3215 3216 return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3217 } 3218 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3219 lpfc_oas_lun_status_show, NULL); 3220 3221 3222 /** 3223 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3224 * (OAS) operations. 3225 * @phba: lpfc_hba pointer. 3226 * @ndlp: pointer to fcp target node. 3227 * @lun: the fc lun for setting oas state. 3228 * @oas_state: the oas state to be set to the lun. 3229 * 3230 * Returns: 3231 * SUCCESS : 0 3232 * -EPERM OAS is not enabled or not supported by this port. 3233 * 3234 */ 3235 static size_t 3236 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3237 uint8_t tgt_wwpn[], uint64_t lun, 3238 uint32_t oas_state, uint8_t pri) 3239 { 3240 3241 int rc = 0; 3242 3243 if (!phba->cfg_fof) 3244 return -EPERM; 3245 3246 if (oas_state) { 3247 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3248 (struct lpfc_name *)tgt_wwpn, 3249 lun, pri)) 3250 rc = -ENOMEM; 3251 } else { 3252 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3253 (struct lpfc_name *)tgt_wwpn, lun, pri); 3254 } 3255 return rc; 3256 3257 } 3258 3259 /** 3260 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3261 * Access Storage (OAS) operations. 3262 * @phba: lpfc_hba pointer. 3263 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3264 * @tgt_wwpn: wwpn of the target associated with the returned lun 3265 * @lun_status: status of the lun returned lun 3266 * 3267 * Returns the first or next lun enabled for OAS operations for the vport/target 3268 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3269 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3270 * 3271 * Return: 3272 * lun that is OAS enabled for the vport/target 3273 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3274 */ 3275 static uint64_t 3276 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3277 uint8_t tgt_wwpn[], uint32_t *lun_status, 3278 uint32_t *lun_pri) 3279 { 3280 uint64_t found_lun; 3281 3282 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3283 return NOT_OAS_ENABLED_LUN; 3284 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3285 phba->sli4_hba.oas_next_vpt_wwpn, 3286 (struct lpfc_name *) 3287 phba->sli4_hba.oas_next_tgt_wwpn, 3288 &phba->sli4_hba.oas_next_lun, 3289 (struct lpfc_name *)vpt_wwpn, 3290 (struct lpfc_name *)tgt_wwpn, 3291 &found_lun, lun_status, lun_pri)) 3292 return found_lun; 3293 else 3294 return NOT_OAS_ENABLED_LUN; 3295 } 3296 3297 /** 3298 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3299 * @phba: lpfc_hba pointer. 3300 * @vpt_wwpn: vport wwpn by reference. 3301 * @tgt_wwpn: target wwpn by reference. 3302 * @lun: the fc lun for setting oas state. 3303 * @oas_state: the oas state to be set to the oas_lun. 3304 * 3305 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3306 * a lun for OAS operations. 3307 * 3308 * Return: 3309 * SUCCESS: 0 3310 * -ENOMEM: failed to enable an lun for OAS operations 3311 * -EPERM: OAS is not enabled 3312 */ 3313 static ssize_t 3314 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3315 uint8_t tgt_wwpn[], uint64_t lun, 3316 uint32_t oas_state, uint8_t pri) 3317 { 3318 3319 int rc; 3320 3321 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3322 oas_state, pri); 3323 return rc; 3324 } 3325 3326 /** 3327 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3328 * @dev: class device that is converted into a Scsi_host. 3329 * @attr: device attribute, not used. 3330 * @buf: buffer for passing information. 3331 * 3332 * This routine returns a lun enabled for OAS each time the function 3333 * is called. 3334 * 3335 * Returns: 3336 * SUCCESS: size of formatted string. 3337 * -EFAULT: target or vport wwpn was not set properly. 3338 * -EPERM: oas is not enabled. 3339 **/ 3340 static ssize_t 3341 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3342 char *buf) 3343 { 3344 struct Scsi_Host *shost = class_to_shost(dev); 3345 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3346 3347 uint64_t oas_lun; 3348 int len = 0; 3349 3350 if (!phba->cfg_fof) 3351 return -EPERM; 3352 3353 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3354 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3355 return -EFAULT; 3356 3357 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3358 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3359 return -EFAULT; 3360 3361 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3362 phba->cfg_oas_tgt_wwpn, 3363 &phba->cfg_oas_lun_status, 3364 &phba->cfg_oas_priority); 3365 if (oas_lun != NOT_OAS_ENABLED_LUN) 3366 phba->cfg_oas_flags |= OAS_LUN_VALID; 3367 3368 len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3369 3370 return len; 3371 } 3372 3373 /** 3374 * lpfc_oas_lun_store - Sets the OAS state for lun 3375 * @dev: class device that is converted into a Scsi_host. 3376 * @attr: device attribute, not used. 3377 * @buf: buffer for passing information. 3378 * 3379 * This function sets the OAS state for lun. Before this function is called, 3380 * the vport wwpn, target wwpn, and oas state need to be set. 3381 * 3382 * Returns: 3383 * SUCCESS: size of formatted string. 3384 * -EFAULT: target or vport wwpn was not set properly. 3385 * -EPERM: oas is not enabled. 3386 * size of formatted string. 3387 **/ 3388 static ssize_t 3389 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3390 const char *buf, size_t count) 3391 { 3392 struct Scsi_Host *shost = class_to_shost(dev); 3393 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3394 uint64_t scsi_lun; 3395 uint32_t pri; 3396 ssize_t rc; 3397 3398 if (!phba->cfg_fof) 3399 return -EPERM; 3400 3401 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3402 return -EFAULT; 3403 3404 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3405 return -EFAULT; 3406 3407 if (!isdigit(buf[0])) 3408 return -EINVAL; 3409 3410 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3411 return -EINVAL; 3412 3413 pri = phba->cfg_oas_priority; 3414 if (pri == 0) 3415 pri = phba->cfg_XLanePriority; 3416 3417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3418 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3419 "priority 0x%x with oas state %d\n", 3420 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3421 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3422 pri, phba->cfg_oas_lun_state); 3423 3424 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3425 phba->cfg_oas_tgt_wwpn, scsi_lun, 3426 phba->cfg_oas_lun_state, pri); 3427 if (rc) 3428 return rc; 3429 3430 return count; 3431 } 3432 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3433 lpfc_oas_lun_show, lpfc_oas_lun_store); 3434 3435 int lpfc_enable_nvmet_cnt; 3436 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3437 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3438 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3439 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3440 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3441 3442 static int lpfc_poll = 0; 3443 module_param(lpfc_poll, int, S_IRUGO); 3444 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3445 " 0 - none," 3446 " 1 - poll with interrupts enabled" 3447 " 3 - poll and disable FCP ring interrupts"); 3448 3449 static DEVICE_ATTR_RW(lpfc_poll); 3450 3451 int lpfc_no_hba_reset_cnt; 3452 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3453 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3454 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3455 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3456 3457 LPFC_ATTR(sli_mode, 0, 0, 3, 3458 "SLI mode selector:" 3459 " 0 - auto (SLI-3 if supported)," 3460 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3461 " 3 - select SLI-3"); 3462 3463 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3464 "Enable NPIV functionality"); 3465 3466 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3467 "FCF Fast failover=1 Priority failover=2"); 3468 3469 /* 3470 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3471 # 0x0 = disabled, XRI/OXID use not tracked. 3472 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3473 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3474 */ 3475 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3476 "Enable RRQ functionality"); 3477 3478 /* 3479 # lpfc_suppress_link_up: Bring link up at initialization 3480 # 0x0 = bring link up (issue MBX_INIT_LINK) 3481 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3482 # 0x2 = never bring up link 3483 # Default value is 0. 3484 */ 3485 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3486 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3487 "Suppress Link Up at initialization"); 3488 /* 3489 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3490 # 1 - (1024) 3491 # 2 - (2048) 3492 # 3 - (3072) 3493 # 4 - (4096) 3494 # 5 - (5120) 3495 */ 3496 static ssize_t 3497 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3498 { 3499 struct Scsi_Host *shost = class_to_shost(dev); 3500 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3501 3502 return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3503 } 3504 3505 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3506 lpfc_iocb_hw_show, NULL); 3507 static ssize_t 3508 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3509 { 3510 struct Scsi_Host *shost = class_to_shost(dev); 3511 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3512 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3513 3514 return snprintf(buf, PAGE_SIZE, "%d\n", 3515 pring ? pring->txq_max : 0); 3516 } 3517 3518 static DEVICE_ATTR(txq_hw, S_IRUGO, 3519 lpfc_txq_hw_show, NULL); 3520 static ssize_t 3521 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3522 char *buf) 3523 { 3524 struct Scsi_Host *shost = class_to_shost(dev); 3525 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3526 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3527 3528 return snprintf(buf, PAGE_SIZE, "%d\n", 3529 pring ? pring->txcmplq_max : 0); 3530 } 3531 3532 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3533 lpfc_txcmplq_hw_show, NULL); 3534 3535 LPFC_ATTR_R(iocb_cnt, 2, 1, 5, 3536 "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); 3537 3538 /* 3539 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3540 # until the timer expires. Value range is [0,255]. Default value is 30. 3541 */ 3542 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3543 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3544 module_param(lpfc_nodev_tmo, int, 0); 3545 MODULE_PARM_DESC(lpfc_nodev_tmo, 3546 "Seconds driver will hold I/O waiting " 3547 "for a device to come back"); 3548 3549 /** 3550 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3551 * @dev: class converted to a Scsi_host structure. 3552 * @attr: device attribute, not used. 3553 * @buf: on return contains the dev loss timeout in decimal. 3554 * 3555 * Returns: size of formatted string. 3556 **/ 3557 static ssize_t 3558 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3559 char *buf) 3560 { 3561 struct Scsi_Host *shost = class_to_shost(dev); 3562 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3563 3564 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3565 } 3566 3567 /** 3568 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3569 * @vport: lpfc vport structure pointer. 3570 * @val: contains the nodev timeout value. 3571 * 3572 * Description: 3573 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3574 * a kernel error message is printed and zero is returned. 3575 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3576 * Otherwise nodev tmo is set to the default value. 3577 * 3578 * Returns: 3579 * zero if already set or if val is in range 3580 * -EINVAL val out of range 3581 **/ 3582 static int 3583 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3584 { 3585 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3586 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3587 if (val != LPFC_DEF_DEVLOSS_TMO) 3588 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3589 "0407 Ignoring lpfc_nodev_tmo module " 3590 "parameter because lpfc_devloss_tmo " 3591 "is set.\n"); 3592 return 0; 3593 } 3594 3595 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3596 vport->cfg_nodev_tmo = val; 3597 vport->cfg_devloss_tmo = val; 3598 return 0; 3599 } 3600 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3601 "0400 lpfc_nodev_tmo attribute cannot be set to" 3602 " %d, allowed range is [%d, %d]\n", 3603 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3604 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3605 return -EINVAL; 3606 } 3607 3608 /** 3609 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3610 * @vport: lpfc vport structure pointer. 3611 * 3612 * Description: 3613 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3614 **/ 3615 static void 3616 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3617 { 3618 struct Scsi_Host *shost; 3619 struct lpfc_nodelist *ndlp; 3620 #if (IS_ENABLED(CONFIG_NVME_FC)) 3621 struct lpfc_nvme_rport *rport; 3622 struct nvme_fc_remote_port *remoteport = NULL; 3623 #endif 3624 3625 shost = lpfc_shost_from_vport(vport); 3626 spin_lock_irq(shost->host_lock); 3627 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3628 if (!NLP_CHK_NODE_ACT(ndlp)) 3629 continue; 3630 if (ndlp->rport) 3631 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3632 #if (IS_ENABLED(CONFIG_NVME_FC)) 3633 spin_lock(&vport->phba->hbalock); 3634 rport = lpfc_ndlp_get_nrport(ndlp); 3635 if (rport) 3636 remoteport = rport->remoteport; 3637 spin_unlock(&vport->phba->hbalock); 3638 if (remoteport) 3639 nvme_fc_set_remoteport_devloss(rport->remoteport, 3640 vport->cfg_devloss_tmo); 3641 #endif 3642 } 3643 spin_unlock_irq(shost->host_lock); 3644 } 3645 3646 /** 3647 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3648 * @vport: lpfc vport structure pointer. 3649 * @val: contains the tmo value. 3650 * 3651 * Description: 3652 * If the devloss tmo is already set or the vport dev loss tmo has changed 3653 * then a kernel error message is printed and zero is returned. 3654 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3655 * Otherwise nodev tmo is set to the default value. 3656 * 3657 * Returns: 3658 * zero if already set or if val is in range 3659 * -EINVAL val out of range 3660 **/ 3661 static int 3662 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3663 { 3664 if (vport->dev_loss_tmo_changed || 3665 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3666 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3667 "0401 Ignoring change to lpfc_nodev_tmo " 3668 "because lpfc_devloss_tmo is set.\n"); 3669 return 0; 3670 } 3671 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3672 vport->cfg_nodev_tmo = val; 3673 vport->cfg_devloss_tmo = val; 3674 /* 3675 * For compat: set the fc_host dev loss so new rports 3676 * will get the value. 3677 */ 3678 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3679 lpfc_update_rport_devloss_tmo(vport); 3680 return 0; 3681 } 3682 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3683 "0403 lpfc_nodev_tmo attribute cannot be set to " 3684 "%d, allowed range is [%d, %d]\n", 3685 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3686 return -EINVAL; 3687 } 3688 3689 lpfc_vport_param_store(nodev_tmo) 3690 3691 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3692 3693 /* 3694 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3695 # disappear until the timer expires. Value range is [0,255]. Default 3696 # value is 30. 3697 */ 3698 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3699 MODULE_PARM_DESC(lpfc_devloss_tmo, 3700 "Seconds driver will hold I/O waiting " 3701 "for a device to come back"); 3702 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3703 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3704 lpfc_vport_param_show(devloss_tmo) 3705 3706 /** 3707 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3708 * @vport: lpfc vport structure pointer. 3709 * @val: contains the tmo value. 3710 * 3711 * Description: 3712 * If val is in a valid range then set the vport nodev tmo, 3713 * devloss tmo, also set the vport dev loss tmo changed flag. 3714 * Else a kernel error message is printed. 3715 * 3716 * Returns: 3717 * zero if val is in range 3718 * -EINVAL val out of range 3719 **/ 3720 static int 3721 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3722 { 3723 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3724 vport->cfg_nodev_tmo = val; 3725 vport->cfg_devloss_tmo = val; 3726 vport->dev_loss_tmo_changed = 1; 3727 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3728 lpfc_update_rport_devloss_tmo(vport); 3729 return 0; 3730 } 3731 3732 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3733 "0404 lpfc_devloss_tmo attribute cannot be set to " 3734 "%d, allowed range is [%d, %d]\n", 3735 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3736 return -EINVAL; 3737 } 3738 3739 lpfc_vport_param_store(devloss_tmo) 3740 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3741 3742 /* 3743 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3744 * lpfc_suppress_rsp = 0 Disable 3745 * lpfc_suppress_rsp = 1 Enable (default) 3746 * 3747 */ 3748 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3749 "Enable suppress rsp feature is firmware supports it"); 3750 3751 /* 3752 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3753 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3754 * lpfc_nvmet_mrq = 1 use a single RQ pair 3755 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3756 * 3757 */ 3758 LPFC_ATTR_R(nvmet_mrq, 3759 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3760 "Specify number of RQ pairs for processing NVMET cmds"); 3761 3762 /* 3763 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3764 * to each NVMET RQ. Range 64 to 2048, default is 512. 3765 */ 3766 LPFC_ATTR_R(nvmet_mrq_post, 3767 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3768 LPFC_NVMET_RQE_DEF_COUNT, 3769 "Specify number of RQ buffers to initially post"); 3770 3771 /* 3772 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3773 * Supported Values: 1 - register just FCP 3774 * 3 - register both FCP and NVME 3775 * Supported values are [1,3]. Default value is 3 3776 */ 3777 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3778 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3779 "Enable FC4 Protocol support - FCP / NVME"); 3780 3781 /* 3782 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3783 # deluged with LOTS of information. 3784 # You can set a bit mask to record specific types of verbose messages: 3785 # See lpfc_logmsh.h for definitions. 3786 */ 3787 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3788 "Verbose logging bit-mask"); 3789 3790 /* 3791 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3792 # objects that have been registered with the nameserver after login. 3793 */ 3794 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3795 "Deregister nameserver objects before LOGO"); 3796 3797 /* 3798 # lun_queue_depth: This parameter is used to limit the number of outstanding 3799 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3800 # If this parameter value is greater than 1/8th the maximum number of exchanges 3801 # supported by the HBA port, then the lun queue depth will be reduced to 3802 # 1/8th the maximum number of exchanges. 3803 */ 3804 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3805 "Max number of FCP commands we can queue to a specific LUN"); 3806 3807 /* 3808 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3809 # commands per target port. Value range is [10,65535]. Default value is 65535. 3810 */ 3811 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3812 module_param(lpfc_tgt_queue_depth, uint, 0444); 3813 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3814 lpfc_vport_param_show(tgt_queue_depth); 3815 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3816 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3817 3818 /** 3819 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3820 * @phba: pointer the the adapter structure. 3821 * @val: integer attribute value. 3822 * 3823 * Description: Sets the parameter to the new value. 3824 * 3825 * Returns: 3826 * zero on success 3827 * -EINVAL if val is invalid 3828 */ 3829 static int 3830 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3831 { 3832 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3833 struct lpfc_nodelist *ndlp; 3834 3835 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3836 return -EINVAL; 3837 3838 if (val == vport->cfg_tgt_queue_depth) 3839 return 0; 3840 3841 spin_lock_irq(shost->host_lock); 3842 vport->cfg_tgt_queue_depth = val; 3843 3844 /* Next loop thru nodelist and change cmd_qdepth */ 3845 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3846 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3847 3848 spin_unlock_irq(shost->host_lock); 3849 return 0; 3850 } 3851 3852 lpfc_vport_param_store(tgt_queue_depth); 3853 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3854 3855 /* 3856 # hba_queue_depth: This parameter is used to limit the number of outstanding 3857 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3858 # value is greater than the maximum number of exchanges supported by the HBA, 3859 # then maximum number of exchanges supported by the HBA is used to determine 3860 # the hba_queue_depth. 3861 */ 3862 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3863 "Max number of FCP commands we can queue to a lpfc HBA"); 3864 3865 /* 3866 # peer_port_login: This parameter allows/prevents logins 3867 # between peer ports hosted on the same physical port. 3868 # When this parameter is set 0 peer ports of same physical port 3869 # are not allowed to login to each other. 3870 # When this parameter is set 1 peer ports of same physical port 3871 # are allowed to login to each other. 3872 # Default value of this parameter is 0. 3873 */ 3874 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3875 "Allow peer ports on the same physical port to login to each " 3876 "other."); 3877 3878 /* 3879 # restrict_login: This parameter allows/prevents logins 3880 # between Virtual Ports and remote initiators. 3881 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3882 # other initiators and will attempt to PLOGI all remote ports. 3883 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3884 # remote ports and will not attempt to PLOGI to other initiators. 3885 # This parameter does not restrict to the physical port. 3886 # This parameter does not restrict logins to Fabric resident remote ports. 3887 # Default value of this parameter is 1. 3888 */ 3889 static int lpfc_restrict_login = 1; 3890 module_param(lpfc_restrict_login, int, S_IRUGO); 3891 MODULE_PARM_DESC(lpfc_restrict_login, 3892 "Restrict virtual ports login to remote initiators."); 3893 lpfc_vport_param_show(restrict_login); 3894 3895 /** 3896 * lpfc_restrict_login_init - Set the vport restrict login flag 3897 * @vport: lpfc vport structure pointer. 3898 * @val: contains the restrict login value. 3899 * 3900 * Description: 3901 * If val is not in a valid range then log a kernel error message and set 3902 * the vport restrict login to one. 3903 * If the port type is physical clear the restrict login flag and return. 3904 * Else set the restrict login flag to val. 3905 * 3906 * Returns: 3907 * zero if val is in range 3908 * -EINVAL val out of range 3909 **/ 3910 static int 3911 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3912 { 3913 if (val < 0 || val > 1) { 3914 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3915 "0422 lpfc_restrict_login attribute cannot " 3916 "be set to %d, allowed range is [0, 1]\n", 3917 val); 3918 vport->cfg_restrict_login = 1; 3919 return -EINVAL; 3920 } 3921 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3922 vport->cfg_restrict_login = 0; 3923 return 0; 3924 } 3925 vport->cfg_restrict_login = val; 3926 return 0; 3927 } 3928 3929 /** 3930 * lpfc_restrict_login_set - Set the vport restrict login flag 3931 * @vport: lpfc vport structure pointer. 3932 * @val: contains the restrict login value. 3933 * 3934 * Description: 3935 * If val is not in a valid range then log a kernel error message and set 3936 * the vport restrict login to one. 3937 * If the port type is physical and the val is not zero log a kernel 3938 * error message, clear the restrict login flag and return zero. 3939 * Else set the restrict login flag to val. 3940 * 3941 * Returns: 3942 * zero if val is in range 3943 * -EINVAL val out of range 3944 **/ 3945 static int 3946 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3947 { 3948 if (val < 0 || val > 1) { 3949 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3950 "0425 lpfc_restrict_login attribute cannot " 3951 "be set to %d, allowed range is [0, 1]\n", 3952 val); 3953 vport->cfg_restrict_login = 1; 3954 return -EINVAL; 3955 } 3956 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3957 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3958 "0468 lpfc_restrict_login must be 0 for " 3959 "Physical ports.\n"); 3960 vport->cfg_restrict_login = 0; 3961 return 0; 3962 } 3963 vport->cfg_restrict_login = val; 3964 return 0; 3965 } 3966 lpfc_vport_param_store(restrict_login); 3967 static DEVICE_ATTR_RW(lpfc_restrict_login); 3968 3969 /* 3970 # Some disk devices have a "select ID" or "select Target" capability. 3971 # From a protocol standpoint "select ID" usually means select the 3972 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3973 # annex" which contains a table that maps a "select ID" (a number 3974 # between 0 and 7F) to an ALPA. By default, for compatibility with 3975 # older drivers, the lpfc driver scans this table from low ALPA to high 3976 # ALPA. 3977 # 3978 # Turning on the scan-down variable (on = 1, off = 0) will 3979 # cause the lpfc driver to use an inverted table, effectively 3980 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3981 # 3982 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3983 # and will not work across a fabric. Also this parameter will take 3984 # effect only in the case when ALPA map is not available.) 3985 */ 3986 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3987 "Start scanning for devices from highest ALPA to lowest"); 3988 3989 /* 3990 # lpfc_topology: link topology for init link 3991 # 0x0 = attempt loop mode then point-to-point 3992 # 0x01 = internal loopback mode 3993 # 0x02 = attempt point-to-point mode only 3994 # 0x04 = attempt loop mode only 3995 # 0x06 = attempt point-to-point mode then loop 3996 # Set point-to-point mode if you want to run as an N_Port. 3997 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3998 # Default value is 0. 3999 */ 4000 LPFC_ATTR(topology, 0, 0, 6, 4001 "Select Fibre Channel topology"); 4002 4003 /** 4004 * lpfc_topology_set - Set the adapters topology field 4005 * @phba: lpfc_hba pointer. 4006 * @val: topology value. 4007 * 4008 * Description: 4009 * If val is in a valid range then set the adapter's topology field and 4010 * issue a lip; if the lip fails reset the topology to the old value. 4011 * 4012 * If the value is not in range log a kernel error message and return an error. 4013 * 4014 * Returns: 4015 * zero if val is in range and lip okay 4016 * non-zero return value from lpfc_issue_lip() 4017 * -EINVAL val out of range 4018 **/ 4019 static ssize_t 4020 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4021 const char *buf, size_t count) 4022 { 4023 struct Scsi_Host *shost = class_to_shost(dev); 4024 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4025 struct lpfc_hba *phba = vport->phba; 4026 int val = 0; 4027 int nolip = 0; 4028 const char *val_buf = buf; 4029 int err; 4030 uint32_t prev_val; 4031 4032 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4033 nolip = 1; 4034 val_buf = &buf[strlen("nolip ")]; 4035 } 4036 4037 if (!isdigit(val_buf[0])) 4038 return -EINVAL; 4039 if (sscanf(val_buf, "%i", &val) != 1) 4040 return -EINVAL; 4041 4042 if (val >= 0 && val <= 6) { 4043 prev_val = phba->cfg_topology; 4044 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4045 val == 4) { 4046 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4047 "3113 Loop mode not supported at speed %d\n", 4048 val); 4049 return -EINVAL; 4050 } 4051 if ((phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4052 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC) && 4053 val == 4) { 4054 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4055 "3114 Loop mode not supported\n"); 4056 return -EINVAL; 4057 } 4058 phba->cfg_topology = val; 4059 if (nolip) 4060 return strlen(buf); 4061 4062 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4063 "3054 lpfc_topology changed from %d to %d\n", 4064 prev_val, val); 4065 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4066 phba->fc_topology_changed = 1; 4067 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4068 if (err) { 4069 phba->cfg_topology = prev_val; 4070 return -EINVAL; 4071 } else 4072 return strlen(buf); 4073 } 4074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4075 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4076 "allowed range is [0, 6]\n", 4077 phba->brd_no, val); 4078 return -EINVAL; 4079 } 4080 4081 lpfc_param_show(topology) 4082 static DEVICE_ATTR_RW(lpfc_topology); 4083 4084 /** 4085 * lpfc_static_vport_show: Read callback function for 4086 * lpfc_static_vport sysfs file. 4087 * @dev: Pointer to class device object. 4088 * @attr: device attribute structure. 4089 * @buf: Data buffer. 4090 * 4091 * This function is the read call back function for 4092 * lpfc_static_vport sysfs file. The lpfc_static_vport 4093 * sysfs file report the mageability of the vport. 4094 **/ 4095 static ssize_t 4096 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4097 char *buf) 4098 { 4099 struct Scsi_Host *shost = class_to_shost(dev); 4100 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4101 if (vport->vport_flag & STATIC_VPORT) 4102 sprintf(buf, "1\n"); 4103 else 4104 sprintf(buf, "0\n"); 4105 4106 return strlen(buf); 4107 } 4108 4109 /* 4110 * Sysfs attribute to control the statistical data collection. 4111 */ 4112 static DEVICE_ATTR_RO(lpfc_static_vport); 4113 4114 /** 4115 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4116 * @dev: Pointer to class device. 4117 * @buf: Data buffer. 4118 * @count: Size of the data buffer. 4119 * 4120 * This function get called when a user write to the lpfc_stat_data_ctrl 4121 * sysfs file. This function parse the command written to the sysfs file 4122 * and take appropriate action. These commands are used for controlling 4123 * driver statistical data collection. 4124 * Following are the command this function handles. 4125 * 4126 * setbucket <bucket_type> <base> <step> 4127 * = Set the latency buckets. 4128 * destroybucket = destroy all the buckets. 4129 * start = start data collection 4130 * stop = stop data collection 4131 * reset = reset the collected data 4132 **/ 4133 static ssize_t 4134 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4135 const char *buf, size_t count) 4136 { 4137 struct Scsi_Host *shost = class_to_shost(dev); 4138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4139 struct lpfc_hba *phba = vport->phba; 4140 #define LPFC_MAX_DATA_CTRL_LEN 1024 4141 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4142 unsigned long i; 4143 char *str_ptr, *token; 4144 struct lpfc_vport **vports; 4145 struct Scsi_Host *v_shost; 4146 char *bucket_type_str, *base_str, *step_str; 4147 unsigned long base, step, bucket_type; 4148 4149 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4150 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4151 return -EINVAL; 4152 4153 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4154 str_ptr = &bucket_data[0]; 4155 /* Ignore this token - this is command token */ 4156 token = strsep(&str_ptr, "\t "); 4157 if (!token) 4158 return -EINVAL; 4159 4160 bucket_type_str = strsep(&str_ptr, "\t "); 4161 if (!bucket_type_str) 4162 return -EINVAL; 4163 4164 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4165 bucket_type = LPFC_LINEAR_BUCKET; 4166 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4167 bucket_type = LPFC_POWER2_BUCKET; 4168 else 4169 return -EINVAL; 4170 4171 base_str = strsep(&str_ptr, "\t "); 4172 if (!base_str) 4173 return -EINVAL; 4174 base = simple_strtoul(base_str, NULL, 0); 4175 4176 step_str = strsep(&str_ptr, "\t "); 4177 if (!step_str) 4178 return -EINVAL; 4179 step = simple_strtoul(step_str, NULL, 0); 4180 if (!step) 4181 return -EINVAL; 4182 4183 /* Block the data collection for every vport */ 4184 vports = lpfc_create_vport_work_array(phba); 4185 if (vports == NULL) 4186 return -ENOMEM; 4187 4188 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4189 v_shost = lpfc_shost_from_vport(vports[i]); 4190 spin_lock_irq(v_shost->host_lock); 4191 /* Block and reset data collection */ 4192 vports[i]->stat_data_blocked = 1; 4193 if (vports[i]->stat_data_enabled) 4194 lpfc_vport_reset_stat_data(vports[i]); 4195 spin_unlock_irq(v_shost->host_lock); 4196 } 4197 4198 /* Set the bucket attributes */ 4199 phba->bucket_type = bucket_type; 4200 phba->bucket_base = base; 4201 phba->bucket_step = step; 4202 4203 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4204 v_shost = lpfc_shost_from_vport(vports[i]); 4205 4206 /* Unblock data collection */ 4207 spin_lock_irq(v_shost->host_lock); 4208 vports[i]->stat_data_blocked = 0; 4209 spin_unlock_irq(v_shost->host_lock); 4210 } 4211 lpfc_destroy_vport_work_array(phba, vports); 4212 return strlen(buf); 4213 } 4214 4215 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4216 vports = lpfc_create_vport_work_array(phba); 4217 if (vports == NULL) 4218 return -ENOMEM; 4219 4220 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4221 v_shost = lpfc_shost_from_vport(vports[i]); 4222 spin_lock_irq(shost->host_lock); 4223 vports[i]->stat_data_blocked = 1; 4224 lpfc_free_bucket(vport); 4225 vport->stat_data_enabled = 0; 4226 vports[i]->stat_data_blocked = 0; 4227 spin_unlock_irq(shost->host_lock); 4228 } 4229 lpfc_destroy_vport_work_array(phba, vports); 4230 phba->bucket_type = LPFC_NO_BUCKET; 4231 phba->bucket_base = 0; 4232 phba->bucket_step = 0; 4233 return strlen(buf); 4234 } 4235 4236 if (!strncmp(buf, "start", strlen("start"))) { 4237 /* If no buckets configured return error */ 4238 if (phba->bucket_type == LPFC_NO_BUCKET) 4239 return -EINVAL; 4240 spin_lock_irq(shost->host_lock); 4241 if (vport->stat_data_enabled) { 4242 spin_unlock_irq(shost->host_lock); 4243 return strlen(buf); 4244 } 4245 lpfc_alloc_bucket(vport); 4246 vport->stat_data_enabled = 1; 4247 spin_unlock_irq(shost->host_lock); 4248 return strlen(buf); 4249 } 4250 4251 if (!strncmp(buf, "stop", strlen("stop"))) { 4252 spin_lock_irq(shost->host_lock); 4253 if (vport->stat_data_enabled == 0) { 4254 spin_unlock_irq(shost->host_lock); 4255 return strlen(buf); 4256 } 4257 lpfc_free_bucket(vport); 4258 vport->stat_data_enabled = 0; 4259 spin_unlock_irq(shost->host_lock); 4260 return strlen(buf); 4261 } 4262 4263 if (!strncmp(buf, "reset", strlen("reset"))) { 4264 if ((phba->bucket_type == LPFC_NO_BUCKET) 4265 || !vport->stat_data_enabled) 4266 return strlen(buf); 4267 spin_lock_irq(shost->host_lock); 4268 vport->stat_data_blocked = 1; 4269 lpfc_vport_reset_stat_data(vport); 4270 vport->stat_data_blocked = 0; 4271 spin_unlock_irq(shost->host_lock); 4272 return strlen(buf); 4273 } 4274 return -EINVAL; 4275 } 4276 4277 4278 /** 4279 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4280 * @dev: Pointer to class device object. 4281 * @buf: Data buffer. 4282 * 4283 * This function is the read call back function for 4284 * lpfc_stat_data_ctrl sysfs file. This function report the 4285 * current statistical data collection state. 4286 **/ 4287 static ssize_t 4288 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4289 char *buf) 4290 { 4291 struct Scsi_Host *shost = class_to_shost(dev); 4292 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4293 struct lpfc_hba *phba = vport->phba; 4294 int index = 0; 4295 int i; 4296 char *bucket_type; 4297 unsigned long bucket_value; 4298 4299 switch (phba->bucket_type) { 4300 case LPFC_LINEAR_BUCKET: 4301 bucket_type = "linear"; 4302 break; 4303 case LPFC_POWER2_BUCKET: 4304 bucket_type = "power2"; 4305 break; 4306 default: 4307 bucket_type = "No Bucket"; 4308 break; 4309 } 4310 4311 sprintf(&buf[index], "Statistical Data enabled :%d, " 4312 "blocked :%d, Bucket type :%s, Bucket base :%d," 4313 " Bucket step :%d\nLatency Ranges :", 4314 vport->stat_data_enabled, vport->stat_data_blocked, 4315 bucket_type, phba->bucket_base, phba->bucket_step); 4316 index = strlen(buf); 4317 if (phba->bucket_type != LPFC_NO_BUCKET) { 4318 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4319 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4320 bucket_value = phba->bucket_base + 4321 phba->bucket_step * i; 4322 else 4323 bucket_value = phba->bucket_base + 4324 (1 << i) * phba->bucket_step; 4325 4326 if (index + 10 > PAGE_SIZE) 4327 break; 4328 sprintf(&buf[index], "%08ld ", bucket_value); 4329 index = strlen(buf); 4330 } 4331 } 4332 sprintf(&buf[index], "\n"); 4333 return strlen(buf); 4334 } 4335 4336 /* 4337 * Sysfs attribute to control the statistical data collection. 4338 */ 4339 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4340 4341 /* 4342 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4343 */ 4344 4345 /* 4346 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4347 * for each target. 4348 */ 4349 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4350 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4351 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4352 4353 4354 /** 4355 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4356 * @filp: sysfs file 4357 * @kobj: Pointer to the kernel object 4358 * @bin_attr: Attribute object 4359 * @buff: Buffer pointer 4360 * @off: File offset 4361 * @count: Buffer size 4362 * 4363 * This function is the read call back function for lpfc_drvr_stat_data 4364 * sysfs file. This function export the statistical data to user 4365 * applications. 4366 **/ 4367 static ssize_t 4368 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4369 struct bin_attribute *bin_attr, 4370 char *buf, loff_t off, size_t count) 4371 { 4372 struct device *dev = container_of(kobj, struct device, 4373 kobj); 4374 struct Scsi_Host *shost = class_to_shost(dev); 4375 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4376 struct lpfc_hba *phba = vport->phba; 4377 int i = 0, index = 0; 4378 unsigned long nport_index; 4379 struct lpfc_nodelist *ndlp = NULL; 4380 nport_index = (unsigned long)off / 4381 MAX_STAT_DATA_SIZE_PER_TARGET; 4382 4383 if (!vport->stat_data_enabled || vport->stat_data_blocked 4384 || (phba->bucket_type == LPFC_NO_BUCKET)) 4385 return 0; 4386 4387 spin_lock_irq(shost->host_lock); 4388 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4389 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 4390 continue; 4391 4392 if (nport_index > 0) { 4393 nport_index--; 4394 continue; 4395 } 4396 4397 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4398 > count) 4399 break; 4400 4401 if (!ndlp->lat_data) 4402 continue; 4403 4404 /* Print the WWN */ 4405 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4406 ndlp->nlp_portname.u.wwn[0], 4407 ndlp->nlp_portname.u.wwn[1], 4408 ndlp->nlp_portname.u.wwn[2], 4409 ndlp->nlp_portname.u.wwn[3], 4410 ndlp->nlp_portname.u.wwn[4], 4411 ndlp->nlp_portname.u.wwn[5], 4412 ndlp->nlp_portname.u.wwn[6], 4413 ndlp->nlp_portname.u.wwn[7]); 4414 4415 index = strlen(buf); 4416 4417 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4418 sprintf(&buf[index], "%010u,", 4419 ndlp->lat_data[i].cmd_count); 4420 index = strlen(buf); 4421 } 4422 sprintf(&buf[index], "\n"); 4423 index = strlen(buf); 4424 } 4425 spin_unlock_irq(shost->host_lock); 4426 return index; 4427 } 4428 4429 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4430 .attr = { 4431 .name = "lpfc_drvr_stat_data", 4432 .mode = S_IRUSR, 4433 }, 4434 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4435 .read = sysfs_drvr_stat_data_read, 4436 .write = NULL, 4437 }; 4438 4439 /* 4440 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4441 # connection. 4442 # Value range is [0,16]. Default value is 0. 4443 */ 4444 /** 4445 * lpfc_link_speed_set - Set the adapters link speed 4446 * @phba: lpfc_hba pointer. 4447 * @val: link speed value. 4448 * 4449 * Description: 4450 * If val is in a valid range then set the adapter's link speed field and 4451 * issue a lip; if the lip fails reset the link speed to the old value. 4452 * 4453 * Notes: 4454 * If the value is not in range log a kernel error message and return an error. 4455 * 4456 * Returns: 4457 * zero if val is in range and lip okay. 4458 * non-zero return value from lpfc_issue_lip() 4459 * -EINVAL val out of range 4460 **/ 4461 static ssize_t 4462 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4463 const char *buf, size_t count) 4464 { 4465 struct Scsi_Host *shost = class_to_shost(dev); 4466 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4467 struct lpfc_hba *phba = vport->phba; 4468 int val = LPFC_USER_LINK_SPEED_AUTO; 4469 int nolip = 0; 4470 const char *val_buf = buf; 4471 int err; 4472 uint32_t prev_val, if_type; 4473 4474 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4475 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4476 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4477 return -EPERM; 4478 4479 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4480 nolip = 1; 4481 val_buf = &buf[strlen("nolip ")]; 4482 } 4483 4484 if (!isdigit(val_buf[0])) 4485 return -EINVAL; 4486 if (sscanf(val_buf, "%i", &val) != 1) 4487 return -EINVAL; 4488 4489 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4490 "3055 lpfc_link_speed changed from %d to %d %s\n", 4491 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4492 4493 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4494 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4495 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4496 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4497 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4498 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4499 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4500 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4502 "2879 lpfc_link_speed attribute cannot be set " 4503 "to %d. Speed is not supported by this port.\n", 4504 val); 4505 return -EINVAL; 4506 } 4507 if (val >= LPFC_USER_LINK_SPEED_16G && 4508 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4510 "3112 lpfc_link_speed attribute cannot be set " 4511 "to %d. Speed is not supported in loop mode.\n", 4512 val); 4513 return -EINVAL; 4514 } 4515 4516 switch (val) { 4517 case LPFC_USER_LINK_SPEED_AUTO: 4518 case LPFC_USER_LINK_SPEED_1G: 4519 case LPFC_USER_LINK_SPEED_2G: 4520 case LPFC_USER_LINK_SPEED_4G: 4521 case LPFC_USER_LINK_SPEED_8G: 4522 case LPFC_USER_LINK_SPEED_16G: 4523 case LPFC_USER_LINK_SPEED_32G: 4524 case LPFC_USER_LINK_SPEED_64G: 4525 prev_val = phba->cfg_link_speed; 4526 phba->cfg_link_speed = val; 4527 if (nolip) 4528 return strlen(buf); 4529 4530 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4531 if (err) { 4532 phba->cfg_link_speed = prev_val; 4533 return -EINVAL; 4534 } 4535 return strlen(buf); 4536 default: 4537 break; 4538 } 4539 4540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4541 "0469 lpfc_link_speed attribute cannot be set to %d, " 4542 "allowed values are [%s]\n", 4543 val, LPFC_LINK_SPEED_STRING); 4544 return -EINVAL; 4545 4546 } 4547 4548 static int lpfc_link_speed = 0; 4549 module_param(lpfc_link_speed, int, S_IRUGO); 4550 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4551 lpfc_param_show(link_speed) 4552 4553 /** 4554 * lpfc_link_speed_init - Set the adapters link speed 4555 * @phba: lpfc_hba pointer. 4556 * @val: link speed value. 4557 * 4558 * Description: 4559 * If val is in a valid range then set the adapter's link speed field. 4560 * 4561 * Notes: 4562 * If the value is not in range log a kernel error message, clear the link 4563 * speed and return an error. 4564 * 4565 * Returns: 4566 * zero if val saved. 4567 * -EINVAL val out of range 4568 **/ 4569 static int 4570 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4571 { 4572 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4574 "3111 lpfc_link_speed of %d cannot " 4575 "support loop mode, setting topology to default.\n", 4576 val); 4577 phba->cfg_topology = 0; 4578 } 4579 4580 switch (val) { 4581 case LPFC_USER_LINK_SPEED_AUTO: 4582 case LPFC_USER_LINK_SPEED_1G: 4583 case LPFC_USER_LINK_SPEED_2G: 4584 case LPFC_USER_LINK_SPEED_4G: 4585 case LPFC_USER_LINK_SPEED_8G: 4586 case LPFC_USER_LINK_SPEED_16G: 4587 case LPFC_USER_LINK_SPEED_32G: 4588 case LPFC_USER_LINK_SPEED_64G: 4589 phba->cfg_link_speed = val; 4590 return 0; 4591 default: 4592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4593 "0405 lpfc_link_speed attribute cannot " 4594 "be set to %d, allowed values are " 4595 "["LPFC_LINK_SPEED_STRING"]\n", val); 4596 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4597 return -EINVAL; 4598 } 4599 } 4600 4601 static DEVICE_ATTR_RW(lpfc_link_speed); 4602 4603 /* 4604 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4605 # 0 = aer disabled or not supported 4606 # 1 = aer supported and enabled (default) 4607 # Value range is [0,1]. Default value is 1. 4608 */ 4609 LPFC_ATTR(aer_support, 1, 0, 1, 4610 "Enable PCIe device AER support"); 4611 lpfc_param_show(aer_support) 4612 4613 /** 4614 * lpfc_aer_support_store - Set the adapter for aer support 4615 * 4616 * @dev: class device that is converted into a Scsi_host. 4617 * @attr: device attribute, not used. 4618 * @buf: containing enable or disable aer flag. 4619 * @count: unused variable. 4620 * 4621 * Description: 4622 * If the val is 1 and currently the device's AER capability was not 4623 * enabled, invoke the kernel's enable AER helper routine, trying to 4624 * enable the device's AER capability. If the helper routine enabling 4625 * AER returns success, update the device's cfg_aer_support flag to 4626 * indicate AER is supported by the device; otherwise, if the device 4627 * AER capability is already enabled to support AER, then do nothing. 4628 * 4629 * If the val is 0 and currently the device's AER support was enabled, 4630 * invoke the kernel's disable AER helper routine. After that, update 4631 * the device's cfg_aer_support flag to indicate AER is not supported 4632 * by the device; otherwise, if the device AER capability is already 4633 * disabled from supporting AER, then do nothing. 4634 * 4635 * Returns: 4636 * length of the buf on success if val is in range the intended mode 4637 * is supported. 4638 * -EINVAL if val out of range or intended mode is not supported. 4639 **/ 4640 static ssize_t 4641 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4642 const char *buf, size_t count) 4643 { 4644 struct Scsi_Host *shost = class_to_shost(dev); 4645 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4646 struct lpfc_hba *phba = vport->phba; 4647 int val = 0, rc = -EINVAL; 4648 4649 if (!isdigit(buf[0])) 4650 return -EINVAL; 4651 if (sscanf(buf, "%i", &val) != 1) 4652 return -EINVAL; 4653 4654 switch (val) { 4655 case 0: 4656 if (phba->hba_flag & HBA_AER_ENABLED) { 4657 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4658 if (!rc) { 4659 spin_lock_irq(&phba->hbalock); 4660 phba->hba_flag &= ~HBA_AER_ENABLED; 4661 spin_unlock_irq(&phba->hbalock); 4662 phba->cfg_aer_support = 0; 4663 rc = strlen(buf); 4664 } else 4665 rc = -EPERM; 4666 } else { 4667 phba->cfg_aer_support = 0; 4668 rc = strlen(buf); 4669 } 4670 break; 4671 case 1: 4672 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4673 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4674 if (!rc) { 4675 spin_lock_irq(&phba->hbalock); 4676 phba->hba_flag |= HBA_AER_ENABLED; 4677 spin_unlock_irq(&phba->hbalock); 4678 phba->cfg_aer_support = 1; 4679 rc = strlen(buf); 4680 } else 4681 rc = -EPERM; 4682 } else { 4683 phba->cfg_aer_support = 1; 4684 rc = strlen(buf); 4685 } 4686 break; 4687 default: 4688 rc = -EINVAL; 4689 break; 4690 } 4691 return rc; 4692 } 4693 4694 static DEVICE_ATTR_RW(lpfc_aer_support); 4695 4696 /** 4697 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4698 * @dev: class device that is converted into a Scsi_host. 4699 * @attr: device attribute, not used. 4700 * @buf: containing flag 1 for aer cleanup state. 4701 * @count: unused variable. 4702 * 4703 * Description: 4704 * If the @buf contains 1 and the device currently has the AER support 4705 * enabled, then invokes the kernel AER helper routine 4706 * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable 4707 * error status register. 4708 * 4709 * Notes: 4710 * 4711 * Returns: 4712 * -EINVAL if the buf does not contain the 1 or the device is not currently 4713 * enabled with the AER support. 4714 **/ 4715 static ssize_t 4716 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4717 const char *buf, size_t count) 4718 { 4719 struct Scsi_Host *shost = class_to_shost(dev); 4720 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4721 struct lpfc_hba *phba = vport->phba; 4722 int val, rc = -1; 4723 4724 if (!isdigit(buf[0])) 4725 return -EINVAL; 4726 if (sscanf(buf, "%i", &val) != 1) 4727 return -EINVAL; 4728 if (val != 1) 4729 return -EINVAL; 4730 4731 if (phba->hba_flag & HBA_AER_ENABLED) 4732 rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); 4733 4734 if (rc == 0) 4735 return strlen(buf); 4736 else 4737 return -EPERM; 4738 } 4739 4740 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4741 lpfc_aer_cleanup_state); 4742 4743 /** 4744 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4745 * 4746 * @dev: class device that is converted into a Scsi_host. 4747 * @attr: device attribute, not used. 4748 * @buf: containing the string the number of vfs to be enabled. 4749 * @count: unused variable. 4750 * 4751 * Description: 4752 * When this api is called either through user sysfs, the driver shall 4753 * try to enable or disable SR-IOV virtual functions according to the 4754 * following: 4755 * 4756 * If zero virtual function has been enabled to the physical function, 4757 * the driver shall invoke the pci enable virtual function api trying 4758 * to enable the virtual functions. If the nr_vfn provided is greater 4759 * than the maximum supported, the maximum virtual function number will 4760 * be used for invoking the api; otherwise, the nr_vfn provided shall 4761 * be used for invoking the api. If the api call returned success, the 4762 * actual number of virtual functions enabled will be set to the driver 4763 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4764 * cfg_sriov_nr_virtfn remains zero. 4765 * 4766 * If none-zero virtual functions have already been enabled to the 4767 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4768 * -EINVAL will be returned and the driver does nothing; 4769 * 4770 * If the nr_vfn provided is zero and none-zero virtual functions have 4771 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4772 * disabling virtual function api shall be invoded to disable all the 4773 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4774 * zero. Otherwise, if zero virtual function has been enabled, do 4775 * nothing. 4776 * 4777 * Returns: 4778 * length of the buf on success if val is in range the intended mode 4779 * is supported. 4780 * -EINVAL if val out of range or intended mode is not supported. 4781 **/ 4782 static ssize_t 4783 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4784 const char *buf, size_t count) 4785 { 4786 struct Scsi_Host *shost = class_to_shost(dev); 4787 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4788 struct lpfc_hba *phba = vport->phba; 4789 struct pci_dev *pdev = phba->pcidev; 4790 int val = 0, rc = -EINVAL; 4791 4792 /* Sanity check on user data */ 4793 if (!isdigit(buf[0])) 4794 return -EINVAL; 4795 if (sscanf(buf, "%i", &val) != 1) 4796 return -EINVAL; 4797 if (val < 0) 4798 return -EINVAL; 4799 4800 /* Request disabling virtual functions */ 4801 if (val == 0) { 4802 if (phba->cfg_sriov_nr_virtfn > 0) { 4803 pci_disable_sriov(pdev); 4804 phba->cfg_sriov_nr_virtfn = 0; 4805 } 4806 return strlen(buf); 4807 } 4808 4809 /* Request enabling virtual functions */ 4810 if (phba->cfg_sriov_nr_virtfn > 0) { 4811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4812 "3018 There are %d virtual functions " 4813 "enabled on physical function.\n", 4814 phba->cfg_sriov_nr_virtfn); 4815 return -EEXIST; 4816 } 4817 4818 if (val <= LPFC_MAX_VFN_PER_PFN) 4819 phba->cfg_sriov_nr_virtfn = val; 4820 else { 4821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4822 "3019 Enabling %d virtual functions is not " 4823 "allowed.\n", val); 4824 return -EINVAL; 4825 } 4826 4827 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4828 if (rc) { 4829 phba->cfg_sriov_nr_virtfn = 0; 4830 rc = -EPERM; 4831 } else 4832 rc = strlen(buf); 4833 4834 return rc; 4835 } 4836 4837 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4838 "Enable PCIe device SR-IOV virtual fn"); 4839 4840 lpfc_param_show(sriov_nr_virtfn) 4841 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4842 4843 /** 4844 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4845 * 4846 * @dev: class device that is converted into a Scsi_host. 4847 * @attr: device attribute, not used. 4848 * @buf: containing the string the number of vfs to be enabled. 4849 * @count: unused variable. 4850 * 4851 * Description: 4852 * 4853 * Returns: 4854 * length of the buf on success if val is in range the intended mode 4855 * is supported. 4856 * -EINVAL if val out of range or intended mode is not supported. 4857 **/ 4858 static ssize_t 4859 lpfc_request_firmware_upgrade_store(struct device *dev, 4860 struct device_attribute *attr, 4861 const char *buf, size_t count) 4862 { 4863 struct Scsi_Host *shost = class_to_shost(dev); 4864 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4865 struct lpfc_hba *phba = vport->phba; 4866 int val = 0, rc = -EINVAL; 4867 4868 /* Sanity check on user data */ 4869 if (!isdigit(buf[0])) 4870 return -EINVAL; 4871 if (sscanf(buf, "%i", &val) != 1) 4872 return -EINVAL; 4873 if (val != 1) 4874 return -EINVAL; 4875 4876 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4877 if (rc) 4878 rc = -EPERM; 4879 else 4880 rc = strlen(buf); 4881 return rc; 4882 } 4883 4884 static int lpfc_req_fw_upgrade; 4885 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4886 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4887 lpfc_param_show(request_firmware_upgrade) 4888 4889 /** 4890 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4891 * @phba: lpfc_hba pointer. 4892 * @val: 0 or 1. 4893 * 4894 * Description: 4895 * Set the initial Linux generic firmware upgrade enable or disable flag. 4896 * 4897 * Returns: 4898 * zero if val saved. 4899 * -EINVAL val out of range 4900 **/ 4901 static int 4902 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4903 { 4904 if (val >= 0 && val <= 1) { 4905 phba->cfg_request_firmware_upgrade = val; 4906 return 0; 4907 } 4908 return -EINVAL; 4909 } 4910 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4911 lpfc_request_firmware_upgrade_show, 4912 lpfc_request_firmware_upgrade_store); 4913 4914 /** 4915 * lpfc_fcp_imax_store 4916 * 4917 * @dev: class device that is converted into a Scsi_host. 4918 * @attr: device attribute, not used. 4919 * @buf: string with the number of fast-path FCP interrupts per second. 4920 * @count: unused variable. 4921 * 4922 * Description: 4923 * If val is in a valid range [636,651042], then set the adapter's 4924 * maximum number of fast-path FCP interrupts per second. 4925 * 4926 * Returns: 4927 * length of the buf on success if val is in range the intended mode 4928 * is supported. 4929 * -EINVAL if val out of range or intended mode is not supported. 4930 **/ 4931 static ssize_t 4932 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 4933 const char *buf, size_t count) 4934 { 4935 struct Scsi_Host *shost = class_to_shost(dev); 4936 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4937 struct lpfc_hba *phba = vport->phba; 4938 struct lpfc_eq_intr_info *eqi; 4939 uint32_t usdelay; 4940 int val = 0, i; 4941 4942 /* fcp_imax is only valid for SLI4 */ 4943 if (phba->sli_rev != LPFC_SLI_REV4) 4944 return -EINVAL; 4945 4946 /* Sanity check on user data */ 4947 if (!isdigit(buf[0])) 4948 return -EINVAL; 4949 if (sscanf(buf, "%i", &val) != 1) 4950 return -EINVAL; 4951 4952 /* 4953 * Value range for the HBA is [5000,5000000] 4954 * The value for each EQ depends on how many EQs are configured. 4955 * Allow value == 0 4956 */ 4957 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 4958 return -EINVAL; 4959 4960 phba->cfg_auto_imax = (val) ? 0 : 1; 4961 if (phba->cfg_fcp_imax && !val) { 4962 queue_delayed_work(phba->wq, &phba->eq_delay_work, 4963 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 4964 4965 for_each_present_cpu(i) { 4966 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 4967 eqi->icnt = 0; 4968 } 4969 } 4970 4971 phba->cfg_fcp_imax = (uint32_t)val; 4972 4973 if (phba->cfg_fcp_imax) 4974 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 4975 else 4976 usdelay = 0; 4977 4978 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 4979 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 4980 usdelay); 4981 4982 return strlen(buf); 4983 } 4984 4985 /* 4986 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 4987 # for the HBA. 4988 # 4989 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 4990 */ 4991 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 4992 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 4993 MODULE_PARM_DESC(lpfc_fcp_imax, 4994 "Set the maximum number of FCP interrupts per second per HBA"); 4995 lpfc_param_show(fcp_imax) 4996 4997 /** 4998 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 4999 * @phba: lpfc_hba pointer. 5000 * @val: link speed value. 5001 * 5002 * Description: 5003 * If val is in a valid range [636,651042], then initialize the adapter's 5004 * maximum number of fast-path FCP interrupts per second. 5005 * 5006 * Returns: 5007 * zero if val saved. 5008 * -EINVAL val out of range 5009 **/ 5010 static int 5011 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5012 { 5013 if (phba->sli_rev != LPFC_SLI_REV4) { 5014 phba->cfg_fcp_imax = 0; 5015 return 0; 5016 } 5017 5018 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5019 (val == 0)) { 5020 phba->cfg_fcp_imax = val; 5021 return 0; 5022 } 5023 5024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5025 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5026 val); 5027 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5028 5029 return 0; 5030 } 5031 5032 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5033 5034 /** 5035 * lpfc_cq_max_proc_limit_store 5036 * 5037 * @dev: class device that is converted into a Scsi_host. 5038 * @attr: device attribute, not used. 5039 * @buf: string with the cq max processing limit of cqes 5040 * @count: unused variable. 5041 * 5042 * Description: 5043 * If val is in a valid range, then set value on each cq 5044 * 5045 * Returns: 5046 * The length of the buf: if successful 5047 * -ERANGE: if val is not in the valid range 5048 * -EINVAL: if bad value format or intended mode is not supported. 5049 **/ 5050 static ssize_t 5051 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5052 const char *buf, size_t count) 5053 { 5054 struct Scsi_Host *shost = class_to_shost(dev); 5055 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5056 struct lpfc_hba *phba = vport->phba; 5057 struct lpfc_queue *eq, *cq; 5058 unsigned long val; 5059 int i; 5060 5061 /* cq_max_proc_limit is only valid for SLI4 */ 5062 if (phba->sli_rev != LPFC_SLI_REV4) 5063 return -EINVAL; 5064 5065 /* Sanity check on user data */ 5066 if (!isdigit(buf[0])) 5067 return -EINVAL; 5068 if (kstrtoul(buf, 0, &val)) 5069 return -EINVAL; 5070 5071 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5072 return -ERANGE; 5073 5074 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5075 5076 /* set the values on the cq's */ 5077 for (i = 0; i < phba->cfg_irq_chann; i++) { 5078 eq = phba->sli4_hba.hdwq[i].hba_eq; 5079 if (!eq) 5080 continue; 5081 5082 list_for_each_entry(cq, &eq->child_list, list) 5083 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5084 cq->entry_count); 5085 } 5086 5087 return strlen(buf); 5088 } 5089 5090 /* 5091 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5092 * itteration of CQ processing. 5093 */ 5094 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5095 module_param(lpfc_cq_max_proc_limit, int, 0644); 5096 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5097 "Set the maximum number CQEs processed in an iteration of " 5098 "CQ processing"); 5099 lpfc_param_show(cq_max_proc_limit) 5100 5101 /* 5102 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5103 * single handler call which should request a polled completion rather 5104 * than re-enabling interrupts. 5105 */ 5106 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5107 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5108 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5109 "CQE Processing Threshold to enable Polling"); 5110 5111 /** 5112 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5113 * @phba: lpfc_hba pointer. 5114 * @val: entry limit 5115 * 5116 * Description: 5117 * If val is in a valid range, then initialize the adapter's maximum 5118 * value. 5119 * 5120 * Returns: 5121 * Always returns 0 for success, even if value not always set to 5122 * requested value. If value out of range or not supported, will fall 5123 * back to default. 5124 **/ 5125 static int 5126 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5127 { 5128 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5129 5130 if (phba->sli_rev != LPFC_SLI_REV4) 5131 return 0; 5132 5133 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5134 phba->cfg_cq_max_proc_limit = val; 5135 return 0; 5136 } 5137 5138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5139 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: " 5140 "%d out of range, using default\n", 5141 phba->cfg_cq_max_proc_limit); 5142 5143 return 0; 5144 } 5145 5146 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5147 5148 /** 5149 * lpfc_state_show - Display current driver CPU affinity 5150 * @dev: class converted to a Scsi_host structure. 5151 * @attr: device attribute, not used. 5152 * @buf: on return contains text describing the state of the link. 5153 * 5154 * Returns: size of formatted string. 5155 **/ 5156 static ssize_t 5157 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5158 char *buf) 5159 { 5160 struct Scsi_Host *shost = class_to_shost(dev); 5161 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5162 struct lpfc_hba *phba = vport->phba; 5163 struct lpfc_vector_map_info *cpup; 5164 int len = 0; 5165 5166 if ((phba->sli_rev != LPFC_SLI_REV4) || 5167 (phba->intr_type != MSIX)) 5168 return len; 5169 5170 switch (phba->cfg_fcp_cpu_map) { 5171 case 0: 5172 len += snprintf(buf + len, PAGE_SIZE-len, 5173 "fcp_cpu_map: No mapping (%d)\n", 5174 phba->cfg_fcp_cpu_map); 5175 return len; 5176 case 1: 5177 len += snprintf(buf + len, PAGE_SIZE-len, 5178 "fcp_cpu_map: HBA centric mapping (%d): " 5179 "%d of %d CPUs online from %d possible CPUs\n", 5180 phba->cfg_fcp_cpu_map, num_online_cpus(), 5181 num_present_cpus(), 5182 phba->sli4_hba.num_possible_cpu); 5183 break; 5184 } 5185 5186 while (phba->sli4_hba.curr_disp_cpu < 5187 phba->sli4_hba.num_possible_cpu) { 5188 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5189 5190 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5191 len += snprintf(buf + len, PAGE_SIZE - len, 5192 "CPU %02d not present\n", 5193 phba->sli4_hba.curr_disp_cpu); 5194 else if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) { 5195 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5196 len += snprintf( 5197 buf + len, PAGE_SIZE - len, 5198 "CPU %02d hdwq None " 5199 "physid %d coreid %d ht %d\n", 5200 phba->sli4_hba.curr_disp_cpu, 5201 cpup->phys_id, 5202 cpup->core_id, cpup->hyper); 5203 else 5204 len += snprintf( 5205 buf + len, PAGE_SIZE - len, 5206 "CPU %02d EQ %04d hdwq %04d " 5207 "physid %d coreid %d ht %d\n", 5208 phba->sli4_hba.curr_disp_cpu, 5209 cpup->eq, cpup->hdwq, cpup->phys_id, 5210 cpup->core_id, cpup->hyper); 5211 } else { 5212 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5213 len += snprintf( 5214 buf + len, PAGE_SIZE - len, 5215 "CPU %02d hdwq None " 5216 "physid %d coreid %d ht %d IRQ %d\n", 5217 phba->sli4_hba.curr_disp_cpu, 5218 cpup->phys_id, 5219 cpup->core_id, cpup->hyper, cpup->irq); 5220 else 5221 len += snprintf( 5222 buf + len, PAGE_SIZE - len, 5223 "CPU %02d EQ %04d hdwq %04d " 5224 "physid %d coreid %d ht %d IRQ %d\n", 5225 phba->sli4_hba.curr_disp_cpu, 5226 cpup->eq, cpup->hdwq, cpup->phys_id, 5227 cpup->core_id, cpup->hyper, cpup->irq); 5228 } 5229 5230 phba->sli4_hba.curr_disp_cpu++; 5231 5232 /* display max number of CPUs keeping some margin */ 5233 if (phba->sli4_hba.curr_disp_cpu < 5234 phba->sli4_hba.num_possible_cpu && 5235 (len >= (PAGE_SIZE - 64))) { 5236 len += snprintf(buf + len, 5237 PAGE_SIZE - len, "more...\n"); 5238 break; 5239 } 5240 } 5241 5242 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5243 phba->sli4_hba.curr_disp_cpu = 0; 5244 5245 return len; 5246 } 5247 5248 /** 5249 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5250 * @dev: class device that is converted into a Scsi_host. 5251 * @attr: device attribute, not used. 5252 * @buf: one or more lpfc_polling_flags values. 5253 * @count: not used. 5254 * 5255 * Returns: 5256 * -EINVAL - Not implemented yet. 5257 **/ 5258 static ssize_t 5259 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5260 const char *buf, size_t count) 5261 { 5262 int status = -EINVAL; 5263 return status; 5264 } 5265 5266 /* 5267 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5268 # for the HBA. 5269 # 5270 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5271 # 0 - Do not affinitze IRQ vectors 5272 # 1 - Affintize HBA vectors with respect to each HBA 5273 # (start with CPU0 for each HBA) 5274 # This also defines how Hardware Queues are mapped to specific CPUs. 5275 */ 5276 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5277 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5278 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5279 "Defines how to map CPUs to IRQ vectors per HBA"); 5280 5281 /** 5282 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5283 * @phba: lpfc_hba pointer. 5284 * @val: link speed value. 5285 * 5286 * Description: 5287 * If val is in a valid range [0-2], then affinitze the adapter's 5288 * MSIX vectors. 5289 * 5290 * Returns: 5291 * zero if val saved. 5292 * -EINVAL val out of range 5293 **/ 5294 static int 5295 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5296 { 5297 if (phba->sli_rev != LPFC_SLI_REV4) { 5298 phba->cfg_fcp_cpu_map = 0; 5299 return 0; 5300 } 5301 5302 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5303 phba->cfg_fcp_cpu_map = val; 5304 return 0; 5305 } 5306 5307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5308 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5309 "default\n", val); 5310 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5311 5312 return 0; 5313 } 5314 5315 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5316 5317 /* 5318 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5319 # Value range is [2,3]. Default value is 3. 5320 */ 5321 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5322 "Select Fibre Channel class of service for FCP sequences"); 5323 5324 /* 5325 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5326 # is [0,1]. Default value is 0. 5327 */ 5328 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5329 "Use ADISC on rediscovery to authenticate FCP devices"); 5330 5331 /* 5332 # lpfc_first_burst_size: First burst size to use on the NPorts 5333 # that support first burst. 5334 # Value range is [0,65536]. Default value is 0. 5335 */ 5336 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5337 "First burst size for Targets that support first burst"); 5338 5339 /* 5340 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5341 * When the driver is configured as an NVME target, this value is 5342 * communicated to the NVME initiator in the PRLI response. It is 5343 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5344 * parameters are set and the target is sending the PRLI RSP. 5345 * Parameter supported on physical port only - no NPIV support. 5346 * Value range is [0,65536]. Default value is 0. 5347 */ 5348 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5349 "NVME Target mode first burst size in 512B increments."); 5350 5351 /* 5352 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5353 * For the Initiator (I), enabling this parameter means that an NVMET 5354 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5355 * processed by the initiator for subsequent NVME FCP IO. For the target 5356 * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size 5357 * driver parameter as the target function's first burst size returned to the 5358 * initiator in the target's NVME PRLI response. Parameter supported on physical 5359 * port only - no NPIV support. 5360 * Value range is [0,1]. Default value is 0 (disabled). 5361 */ 5362 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5363 "Enable First Burst feature on I and T functions."); 5364 5365 /* 5366 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5367 # depth. Default value is 0. When the value of this parameter is zero the 5368 # SCSI command completion time is not used for controlling I/O queue depth. When 5369 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5370 # to limit the I/O completion time to the parameter value. 5371 # The value is set in milliseconds. 5372 */ 5373 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5374 "Use command completion time to control queue depth"); 5375 5376 lpfc_vport_param_show(max_scsicmpl_time); 5377 static int 5378 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5379 { 5380 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5381 struct lpfc_nodelist *ndlp, *next_ndlp; 5382 5383 if (val == vport->cfg_max_scsicmpl_time) 5384 return 0; 5385 if ((val < 0) || (val > 60000)) 5386 return -EINVAL; 5387 vport->cfg_max_scsicmpl_time = val; 5388 5389 spin_lock_irq(shost->host_lock); 5390 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5391 if (!NLP_CHK_NODE_ACT(ndlp)) 5392 continue; 5393 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5394 continue; 5395 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5396 } 5397 spin_unlock_irq(shost->host_lock); 5398 return 0; 5399 } 5400 lpfc_vport_param_store(max_scsicmpl_time); 5401 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5402 5403 /* 5404 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5405 # range is [0,1]. Default value is 0. 5406 */ 5407 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5408 5409 /* 5410 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5411 # range is [0,1]. Default value is 1. 5412 */ 5413 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5414 5415 /* 5416 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5417 * range is [0,1]. Default value is 0. 5418 * For [0], FCP commands are issued to Work Queues based on upper layer 5419 * hardware queue index. 5420 * For [1], FCP commands are issued to a Work Queue associated with the 5421 * current CPU. 5422 * 5423 * LPFC_FCP_SCHED_BY_HDWQ == 0 5424 * LPFC_FCP_SCHED_BY_CPU == 1 5425 * 5426 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5427 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5428 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5429 * through WQs will be used. 5430 */ 5431 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5432 LPFC_FCP_SCHED_BY_HDWQ, 5433 LPFC_FCP_SCHED_BY_CPU, 5434 "Determine scheduling algorithm for " 5435 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5436 5437 /* 5438 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5439 * range is [0,1]. Default value is 0. 5440 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5441 * For [1], GID_PT is used for NameServer queries after RSCN 5442 * 5443 */ 5444 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5445 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5446 "Determine algorithm NameServer queries after RSCN " 5447 "[0] - GID_FT, [1] - GID_PT"); 5448 5449 /* 5450 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5451 # range is [0,1]. Default value is 0. 5452 # For [0], bus reset issues target reset to ALL devices 5453 # For [1], bus reset issues target reset to non-FCP2 devices 5454 */ 5455 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5456 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5457 5458 5459 /* 5460 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5461 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5462 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5463 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5464 # cr_delay is set to 0. 5465 */ 5466 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5467 "interrupt response is generated"); 5468 5469 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5470 "interrupt response is generated"); 5471 5472 /* 5473 # lpfc_multi_ring_support: Determines how many rings to spread available 5474 # cmd/rsp IOCB entries across. 5475 # Value range is [1,2]. Default value is 1. 5476 */ 5477 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5478 "SLI rings to spread IOCB entries across"); 5479 5480 /* 5481 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5482 # identifies what rctl value to configure the additional ring for. 5483 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5484 */ 5485 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5486 255, "Identifies RCTL for additional ring configuration"); 5487 5488 /* 5489 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5490 # identifies what type value to configure the additional ring for. 5491 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5492 */ 5493 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5494 255, "Identifies TYPE for additional ring configuration"); 5495 5496 /* 5497 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5498 # 0 = SmartSAN functionality disabled (default) 5499 # 1 = SmartSAN functionality enabled 5500 # This parameter will override the value of lpfc_fdmi_on module parameter. 5501 # Value range is [0,1]. Default value is 0. 5502 */ 5503 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5504 5505 /* 5506 # lpfc_fdmi_on: Controls FDMI support. 5507 # 0 No FDMI support 5508 # 1 Traditional FDMI support (default) 5509 # Traditional FDMI support means the driver will assume FDMI-2 support; 5510 # however, if that fails, it will fallback to FDMI-1. 5511 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5512 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5513 # lpfc_fdmi_on. 5514 # Value range [0,1]. Default value is 1. 5515 */ 5516 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5517 5518 /* 5519 # Specifies the maximum number of ELS cmds we can have outstanding (for 5520 # discovery). Value range is [1,64]. Default value = 32. 5521 */ 5522 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5523 "during discovery"); 5524 5525 /* 5526 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5527 # will be scanned by the SCSI midlayer when sequential scanning is 5528 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5529 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5530 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5531 # above. The lpfc driver limits the default value to 255 for two reasons. 5532 # As it bounds the sequential scan loop, scanning for thousands of luns 5533 # on a target can take minutes of wall clock time. Additionally, 5534 # there are FC targets, such as JBODs, that only recognize 8-bits of 5535 # LUN ID. When they receive a value greater than 8 bits, they chop off 5536 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5537 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5538 # valid responses at each of the LUN IDs, to believe there are multiple 5539 # devices present, when in fact, there is only 1. 5540 # A customer that is aware of their target behaviors, and the results as 5541 # indicated above, is welcome to increase the lpfc_max_luns value. 5542 # As mentioned, this value is not used by the lpfc driver, only the 5543 # SCSI midlayer. 5544 # Value range is [0,65535]. Default value is 255. 5545 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5546 */ 5547 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5548 5549 /* 5550 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5551 # Value range is [1,255], default value is 10. 5552 */ 5553 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5554 "Milliseconds driver will wait between polling FCP ring"); 5555 5556 /* 5557 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5558 # to complete in seconds. Value range is [5,180], default value is 60. 5559 */ 5560 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5561 "Maximum time to wait for task management commands to complete"); 5562 /* 5563 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5564 # support this feature 5565 # 0 = MSI disabled 5566 # 1 = MSI enabled 5567 # 2 = MSI-X enabled (default) 5568 # Value range is [0,2]. Default value is 2. 5569 */ 5570 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5571 "MSI-X (2), if possible"); 5572 5573 /* 5574 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5575 * 5576 * 0 = NVME OAS disabled 5577 * 1 = NVME OAS enabled 5578 * 5579 * Value range is [0,1]. Default value is 0. 5580 */ 5581 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5582 "Use OAS bit on NVME IOs"); 5583 5584 /* 5585 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5586 * 5587 * 0 = Put NVME Command in SGL 5588 * 1 = Embed NVME Command in WQE (unless G7) 5589 * 2 = Embed NVME Command in WQE (force) 5590 * 5591 * Value range is [0,2]. Default value is 1. 5592 */ 5593 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5594 "Embed NVME Command in WQE"); 5595 5596 /* 5597 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5598 * will advertise it supports to the NVME and SCSI layers. This also 5599 * will map to the number of CQ/WQ pairs the driver will create. 5600 * 5601 * The NVME Layer will try to create this many, plus 1 administrative 5602 * hardware queue. The administrative queue will always map to WQ 0 5603 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5604 * 5605 * 0 = Configure the number of hdw queues to the number of active CPUs. 5606 * 1,128 = Manually specify how many hdw queues to use. 5607 * 5608 * Value range is [0,128]. Default value is 0. 5609 */ 5610 LPFC_ATTR_R(hdw_queue, 5611 LPFC_HBA_HDWQ_DEF, 5612 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5613 "Set the number of I/O Hardware Queues"); 5614 5615 /* 5616 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5617 * for Hardware Queues to utilize. This also will map to the number 5618 * of EQ / MSI-X vectors the driver will create. This should never be 5619 * more than the number of Hardware Queues 5620 * 5621 * 0 = Configure number of IRQ Channels to the number of active CPUs. 5622 * 1,128 = Manually specify how many IRQ Channels to use. 5623 * 5624 * Value range is [0,128]. Default value is 0. 5625 */ 5626 LPFC_ATTR_R(irq_chann, 5627 LPFC_HBA_HDWQ_DEF, 5628 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5629 "Set the number of I/O IRQ Channels"); 5630 5631 /* 5632 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5633 # 0 = HBA resets disabled 5634 # 1 = HBA resets enabled (default) 5635 # 2 = HBA reset via PCI bus reset enabled 5636 # Value range is [0,2]. Default value is 1. 5637 */ 5638 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5639 5640 /* 5641 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5642 # 0 = HBA Heartbeat disabled 5643 # 1 = HBA Heartbeat enabled (default) 5644 # Value range is [0,1]. Default value is 1. 5645 */ 5646 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5647 5648 /* 5649 # lpfc_EnableXLane: Enable Express Lane Feature 5650 # 0x0 Express Lane Feature disabled 5651 # 0x1 Express Lane Feature enabled 5652 # Value range is [0,1]. Default value is 0. 5653 */ 5654 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5655 5656 /* 5657 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5658 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5659 # Value range is [0x0,0x7f]. Default value is 0 5660 */ 5661 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5662 5663 /* 5664 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5665 # 0 = BlockGuard disabled (default) 5666 # 1 = BlockGuard enabled 5667 # Value range is [0,1]. Default value is 0. 5668 */ 5669 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5670 5671 /* 5672 # lpfc_prot_mask: i 5673 # - Bit mask of host protection capabilities used to register with the 5674 # SCSI mid-layer 5675 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5676 # - Allows you to ultimately specify which profiles to use 5677 # - Default will result in registering capabilities for all profiles. 5678 # - SHOST_DIF_TYPE1_PROTECTION 1 5679 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5680 # - SHOST_DIX_TYPE0_PROTECTION 8 5681 # HBA supports DIX Type 0: Host to HBA protection only 5682 # - SHOST_DIX_TYPE1_PROTECTION 16 5683 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5684 # 5685 */ 5686 LPFC_ATTR(prot_mask, 5687 (SHOST_DIF_TYPE1_PROTECTION | 5688 SHOST_DIX_TYPE0_PROTECTION | 5689 SHOST_DIX_TYPE1_PROTECTION), 5690 0, 5691 (SHOST_DIF_TYPE1_PROTECTION | 5692 SHOST_DIX_TYPE0_PROTECTION | 5693 SHOST_DIX_TYPE1_PROTECTION), 5694 "T10-DIF host protection capabilities mask"); 5695 5696 /* 5697 # lpfc_prot_guard: i 5698 # - Bit mask of protection guard types to register with the SCSI mid-layer 5699 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5700 # - Allows you to ultimately specify which profiles to use 5701 # - Default will result in registering capabilities for all guard types 5702 # 5703 */ 5704 LPFC_ATTR(prot_guard, 5705 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5706 "T10-DIF host protection guard type"); 5707 5708 /* 5709 * Delay initial NPort discovery when Clean Address bit is cleared in 5710 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5711 * This parameter can have value 0 or 1. 5712 * When this parameter is set to 0, no delay is added to the initial 5713 * discovery. 5714 * When this parameter is set to non-zero value, initial Nport discovery is 5715 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5716 * accept and FCID/Fabric name/Fabric portname is changed. 5717 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5718 * when Clean Address bit is cleared in FLOGI/FDISC 5719 * accept and FCID/Fabric name/Fabric portname is changed. 5720 * Default value is 0. 5721 */ 5722 LPFC_ATTR(delay_discovery, 0, 0, 1, 5723 "Delay NPort discovery when Clean Address bit is cleared."); 5724 5725 /* 5726 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5727 * This value can be set to values between 64 and 4096. The default value 5728 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5729 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5730 * Because of the additional overhead involved in setting up T10-DIF, 5731 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5732 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5733 */ 5734 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5735 module_param(lpfc_sg_seg_cnt, uint, 0444); 5736 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5737 5738 /** 5739 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5740 * configured for the adapter 5741 * @dev: class converted to a Scsi_host structure. 5742 * @attr: device attribute, not used. 5743 * @buf: on return contains a string with the list sizes 5744 * 5745 * Returns: size of formatted string. 5746 **/ 5747 static ssize_t 5748 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5749 char *buf) 5750 { 5751 struct Scsi_Host *shost = class_to_shost(dev); 5752 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5753 struct lpfc_hba *phba = vport->phba; 5754 int len; 5755 5756 len = snprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5757 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5758 5759 len += snprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 5760 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5761 phba->cfg_nvme_seg_cnt); 5762 return len; 5763 } 5764 5765 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5766 5767 /** 5768 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5769 * @phba: lpfc_hba pointer. 5770 * @val: contains the initial value 5771 * 5772 * Description: 5773 * Validates the initial value is within range and assigns it to the 5774 * adapter. If not in range, an error message is posted and the 5775 * default value is assigned. 5776 * 5777 * Returns: 5778 * zero if value is in range and is set 5779 * -EINVAL if value was out of range 5780 **/ 5781 static int 5782 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5783 { 5784 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5785 phba->cfg_sg_seg_cnt = val; 5786 return 0; 5787 } 5788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5789 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 5790 "be set to %d, allowed range is [%d, %d]\n", 5791 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5792 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5793 return -EINVAL; 5794 } 5795 5796 /* 5797 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5798 * 0 = MDS Diagnostics disabled (default) 5799 * 1 = MDS Diagnostics enabled 5800 * Value range is [0,1]. Default value is 0. 5801 */ 5802 LPFC_ATTR_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5803 5804 /* 5805 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5806 * 0 = Disable firmware logging (default) 5807 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 5808 * Value range [0..4]. Default value is 0 5809 */ 5810 LPFC_ATTR_RW(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 5811 5812 /* 5813 * lpfc_ras_fwlog_level: Firmware logging verbosity level 5814 * Valid only if firmware logging is enabled 5815 * 0(Least Verbosity) 4 (most verbosity) 5816 * Value range is [0..4]. Default value is 0 5817 */ 5818 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 5819 5820 /* 5821 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 5822 * Default function which has RAS support : 0 5823 * Value Range is [0..7]. 5824 * FW logging is a global action and enablement is via a specific 5825 * port. 5826 */ 5827 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 5828 5829 /* 5830 * lpfc_enable_bbcr: Enable BB Credit Recovery 5831 * 0 = BB Credit Recovery disabled 5832 * 1 = BB Credit Recovery enabled (default) 5833 * Value range is [0,1]. Default value is 1. 5834 */ 5835 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 5836 5837 /* 5838 * lpfc_enable_dpp: Enable DPP on G7 5839 * 0 = DPP on G7 disabled 5840 * 1 = DPP on G7 enabled (default) 5841 * Value range is [0,1]. Default value is 1. 5842 */ 5843 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 5844 5845 struct device_attribute *lpfc_hba_attrs[] = { 5846 &dev_attr_nvme_info, 5847 &dev_attr_scsi_stat, 5848 &dev_attr_bg_info, 5849 &dev_attr_bg_guard_err, 5850 &dev_attr_bg_apptag_err, 5851 &dev_attr_bg_reftag_err, 5852 &dev_attr_info, 5853 &dev_attr_serialnum, 5854 &dev_attr_modeldesc, 5855 &dev_attr_modelname, 5856 &dev_attr_programtype, 5857 &dev_attr_portnum, 5858 &dev_attr_fwrev, 5859 &dev_attr_hdw, 5860 &dev_attr_option_rom_version, 5861 &dev_attr_link_state, 5862 &dev_attr_num_discovered_ports, 5863 &dev_attr_menlo_mgmt_mode, 5864 &dev_attr_lpfc_drvr_version, 5865 &dev_attr_lpfc_enable_fip, 5866 &dev_attr_lpfc_temp_sensor, 5867 &dev_attr_lpfc_log_verbose, 5868 &dev_attr_lpfc_lun_queue_depth, 5869 &dev_attr_lpfc_tgt_queue_depth, 5870 &dev_attr_lpfc_hba_queue_depth, 5871 &dev_attr_lpfc_peer_port_login, 5872 &dev_attr_lpfc_nodev_tmo, 5873 &dev_attr_lpfc_devloss_tmo, 5874 &dev_attr_lpfc_enable_fc4_type, 5875 &dev_attr_lpfc_fcp_class, 5876 &dev_attr_lpfc_use_adisc, 5877 &dev_attr_lpfc_first_burst_size, 5878 &dev_attr_lpfc_ack0, 5879 &dev_attr_lpfc_xri_rebalancing, 5880 &dev_attr_lpfc_topology, 5881 &dev_attr_lpfc_scan_down, 5882 &dev_attr_lpfc_link_speed, 5883 &dev_attr_lpfc_fcp_io_sched, 5884 &dev_attr_lpfc_ns_query, 5885 &dev_attr_lpfc_fcp2_no_tgt_reset, 5886 &dev_attr_lpfc_cr_delay, 5887 &dev_attr_lpfc_cr_count, 5888 &dev_attr_lpfc_multi_ring_support, 5889 &dev_attr_lpfc_multi_ring_rctl, 5890 &dev_attr_lpfc_multi_ring_type, 5891 &dev_attr_lpfc_fdmi_on, 5892 &dev_attr_lpfc_enable_SmartSAN, 5893 &dev_attr_lpfc_max_luns, 5894 &dev_attr_lpfc_enable_npiv, 5895 &dev_attr_lpfc_fcf_failover_policy, 5896 &dev_attr_lpfc_enable_rrq, 5897 &dev_attr_nport_evt_cnt, 5898 &dev_attr_board_mode, 5899 &dev_attr_max_vpi, 5900 &dev_attr_used_vpi, 5901 &dev_attr_max_rpi, 5902 &dev_attr_used_rpi, 5903 &dev_attr_max_xri, 5904 &dev_attr_used_xri, 5905 &dev_attr_npiv_info, 5906 &dev_attr_issue_reset, 5907 &dev_attr_lpfc_poll, 5908 &dev_attr_lpfc_poll_tmo, 5909 &dev_attr_lpfc_task_mgmt_tmo, 5910 &dev_attr_lpfc_use_msi, 5911 &dev_attr_lpfc_nvme_oas, 5912 &dev_attr_lpfc_nvme_embed_cmd, 5913 &dev_attr_lpfc_fcp_imax, 5914 &dev_attr_lpfc_cq_poll_threshold, 5915 &dev_attr_lpfc_cq_max_proc_limit, 5916 &dev_attr_lpfc_fcp_cpu_map, 5917 &dev_attr_lpfc_hdw_queue, 5918 &dev_attr_lpfc_irq_chann, 5919 &dev_attr_lpfc_suppress_rsp, 5920 &dev_attr_lpfc_nvmet_mrq, 5921 &dev_attr_lpfc_nvmet_mrq_post, 5922 &dev_attr_lpfc_nvme_enable_fb, 5923 &dev_attr_lpfc_nvmet_fb_size, 5924 &dev_attr_lpfc_enable_bg, 5925 &dev_attr_lpfc_soft_wwnn, 5926 &dev_attr_lpfc_soft_wwpn, 5927 &dev_attr_lpfc_soft_wwn_enable, 5928 &dev_attr_lpfc_enable_hba_reset, 5929 &dev_attr_lpfc_enable_hba_heartbeat, 5930 &dev_attr_lpfc_EnableXLane, 5931 &dev_attr_lpfc_XLanePriority, 5932 &dev_attr_lpfc_xlane_lun, 5933 &dev_attr_lpfc_xlane_tgt, 5934 &dev_attr_lpfc_xlane_vpt, 5935 &dev_attr_lpfc_xlane_lun_state, 5936 &dev_attr_lpfc_xlane_lun_status, 5937 &dev_attr_lpfc_xlane_priority, 5938 &dev_attr_lpfc_sg_seg_cnt, 5939 &dev_attr_lpfc_max_scsicmpl_time, 5940 &dev_attr_lpfc_stat_data_ctrl, 5941 &dev_attr_lpfc_aer_support, 5942 &dev_attr_lpfc_aer_state_cleanup, 5943 &dev_attr_lpfc_sriov_nr_virtfn, 5944 &dev_attr_lpfc_req_fw_upgrade, 5945 &dev_attr_lpfc_suppress_link_up, 5946 &dev_attr_lpfc_iocb_cnt, 5947 &dev_attr_iocb_hw, 5948 &dev_attr_txq_hw, 5949 &dev_attr_txcmplq_hw, 5950 &dev_attr_lpfc_fips_level, 5951 &dev_attr_lpfc_fips_rev, 5952 &dev_attr_lpfc_dss, 5953 &dev_attr_lpfc_sriov_hw_max_virtfn, 5954 &dev_attr_protocol, 5955 &dev_attr_lpfc_xlane_supported, 5956 &dev_attr_lpfc_enable_mds_diags, 5957 &dev_attr_lpfc_ras_fwlog_buffsize, 5958 &dev_attr_lpfc_ras_fwlog_level, 5959 &dev_attr_lpfc_ras_fwlog_func, 5960 &dev_attr_lpfc_enable_bbcr, 5961 &dev_attr_lpfc_enable_dpp, 5962 NULL, 5963 }; 5964 5965 struct device_attribute *lpfc_vport_attrs[] = { 5966 &dev_attr_info, 5967 &dev_attr_link_state, 5968 &dev_attr_num_discovered_ports, 5969 &dev_attr_lpfc_drvr_version, 5970 &dev_attr_lpfc_log_verbose, 5971 &dev_attr_lpfc_lun_queue_depth, 5972 &dev_attr_lpfc_tgt_queue_depth, 5973 &dev_attr_lpfc_nodev_tmo, 5974 &dev_attr_lpfc_devloss_tmo, 5975 &dev_attr_lpfc_hba_queue_depth, 5976 &dev_attr_lpfc_peer_port_login, 5977 &dev_attr_lpfc_restrict_login, 5978 &dev_attr_lpfc_fcp_class, 5979 &dev_attr_lpfc_use_adisc, 5980 &dev_attr_lpfc_first_burst_size, 5981 &dev_attr_lpfc_max_luns, 5982 &dev_attr_nport_evt_cnt, 5983 &dev_attr_npiv_info, 5984 &dev_attr_lpfc_enable_da_id, 5985 &dev_attr_lpfc_max_scsicmpl_time, 5986 &dev_attr_lpfc_stat_data_ctrl, 5987 &dev_attr_lpfc_static_vport, 5988 &dev_attr_lpfc_fips_level, 5989 &dev_attr_lpfc_fips_rev, 5990 NULL, 5991 }; 5992 5993 /** 5994 * sysfs_ctlreg_write - Write method for writing to ctlreg 5995 * @filp: open sysfs file 5996 * @kobj: kernel kobject that contains the kernel class device. 5997 * @bin_attr: kernel attributes passed to us. 5998 * @buf: contains the data to be written to the adapter IOREG space. 5999 * @off: offset into buffer to beginning of data. 6000 * @count: bytes to transfer. 6001 * 6002 * Description: 6003 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6004 * Uses the adapter io control registers to send buf contents to the adapter. 6005 * 6006 * Returns: 6007 * -ERANGE off and count combo out of range 6008 * -EINVAL off, count or buff address invalid 6009 * -EPERM adapter is offline 6010 * value of count, buf contents written 6011 **/ 6012 static ssize_t 6013 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6014 struct bin_attribute *bin_attr, 6015 char *buf, loff_t off, size_t count) 6016 { 6017 size_t buf_off; 6018 struct device *dev = container_of(kobj, struct device, kobj); 6019 struct Scsi_Host *shost = class_to_shost(dev); 6020 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6021 struct lpfc_hba *phba = vport->phba; 6022 6023 if (phba->sli_rev >= LPFC_SLI_REV4) 6024 return -EPERM; 6025 6026 if ((off + count) > FF_REG_AREA_SIZE) 6027 return -ERANGE; 6028 6029 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6030 return 0; 6031 6032 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6033 return -EINVAL; 6034 6035 /* This is to protect HBA registers from accidental writes. */ 6036 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6037 return -EINVAL; 6038 6039 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6040 return -EPERM; 6041 6042 spin_lock_irq(&phba->hbalock); 6043 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6044 buf_off += sizeof(uint32_t)) 6045 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6046 phba->ctrl_regs_memmap_p + off + buf_off); 6047 6048 spin_unlock_irq(&phba->hbalock); 6049 6050 return count; 6051 } 6052 6053 /** 6054 * sysfs_ctlreg_read - Read method for reading from ctlreg 6055 * @filp: open sysfs file 6056 * @kobj: kernel kobject that contains the kernel class device. 6057 * @bin_attr: kernel attributes passed to us. 6058 * @buf: if successful contains the data from the adapter IOREG space. 6059 * @off: offset into buffer to beginning of data. 6060 * @count: bytes to transfer. 6061 * 6062 * Description: 6063 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6064 * Uses the adapter io control registers to read data into buf. 6065 * 6066 * Returns: 6067 * -ERANGE off and count combo out of range 6068 * -EINVAL off, count or buff address invalid 6069 * value of count, buf contents read 6070 **/ 6071 static ssize_t 6072 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6073 struct bin_attribute *bin_attr, 6074 char *buf, loff_t off, size_t count) 6075 { 6076 size_t buf_off; 6077 uint32_t * tmp_ptr; 6078 struct device *dev = container_of(kobj, struct device, kobj); 6079 struct Scsi_Host *shost = class_to_shost(dev); 6080 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6081 struct lpfc_hba *phba = vport->phba; 6082 6083 if (phba->sli_rev >= LPFC_SLI_REV4) 6084 return -EPERM; 6085 6086 if (off > FF_REG_AREA_SIZE) 6087 return -ERANGE; 6088 6089 if ((off + count) > FF_REG_AREA_SIZE) 6090 count = FF_REG_AREA_SIZE - off; 6091 6092 if (count == 0) return 0; 6093 6094 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6095 return -EINVAL; 6096 6097 spin_lock_irq(&phba->hbalock); 6098 6099 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6100 tmp_ptr = (uint32_t *)(buf + buf_off); 6101 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6102 } 6103 6104 spin_unlock_irq(&phba->hbalock); 6105 6106 return count; 6107 } 6108 6109 static struct bin_attribute sysfs_ctlreg_attr = { 6110 .attr = { 6111 .name = "ctlreg", 6112 .mode = S_IRUSR | S_IWUSR, 6113 }, 6114 .size = 256, 6115 .read = sysfs_ctlreg_read, 6116 .write = sysfs_ctlreg_write, 6117 }; 6118 6119 /** 6120 * sysfs_mbox_write - Write method for writing information via mbox 6121 * @filp: open sysfs file 6122 * @kobj: kernel kobject that contains the kernel class device. 6123 * @bin_attr: kernel attributes passed to us. 6124 * @buf: contains the data to be written to sysfs mbox. 6125 * @off: offset into buffer to beginning of data. 6126 * @count: bytes to transfer. 6127 * 6128 * Description: 6129 * Deprecated function. All mailbox access from user space is performed via the 6130 * bsg interface. 6131 * 6132 * Returns: 6133 * -EPERM operation not permitted 6134 **/ 6135 static ssize_t 6136 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6137 struct bin_attribute *bin_attr, 6138 char *buf, loff_t off, size_t count) 6139 { 6140 return -EPERM; 6141 } 6142 6143 /** 6144 * sysfs_mbox_read - Read method for reading information via mbox 6145 * @filp: open sysfs file 6146 * @kobj: kernel kobject that contains the kernel class device. 6147 * @bin_attr: kernel attributes passed to us. 6148 * @buf: contains the data to be read from sysfs mbox. 6149 * @off: offset into buffer to beginning of data. 6150 * @count: bytes to transfer. 6151 * 6152 * Description: 6153 * Deprecated function. All mailbox access from user space is performed via the 6154 * bsg interface. 6155 * 6156 * Returns: 6157 * -EPERM operation not permitted 6158 **/ 6159 static ssize_t 6160 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6161 struct bin_attribute *bin_attr, 6162 char *buf, loff_t off, size_t count) 6163 { 6164 return -EPERM; 6165 } 6166 6167 static struct bin_attribute sysfs_mbox_attr = { 6168 .attr = { 6169 .name = "mbox", 6170 .mode = S_IRUSR | S_IWUSR, 6171 }, 6172 .size = MAILBOX_SYSFS_MAX, 6173 .read = sysfs_mbox_read, 6174 .write = sysfs_mbox_write, 6175 }; 6176 6177 /** 6178 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6179 * @vport: address of lpfc vport structure. 6180 * 6181 * Return codes: 6182 * zero on success 6183 * error return code from sysfs_create_bin_file() 6184 **/ 6185 int 6186 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6187 { 6188 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6189 int error; 6190 6191 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6192 &sysfs_drvr_stat_data_attr); 6193 6194 /* Virtual ports do not need ctrl_reg and mbox */ 6195 if (error || vport->port_type == LPFC_NPIV_PORT) 6196 goto out; 6197 6198 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6199 &sysfs_ctlreg_attr); 6200 if (error) 6201 goto out_remove_stat_attr; 6202 6203 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6204 &sysfs_mbox_attr); 6205 if (error) 6206 goto out_remove_ctlreg_attr; 6207 6208 return 0; 6209 out_remove_ctlreg_attr: 6210 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6211 out_remove_stat_attr: 6212 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6213 &sysfs_drvr_stat_data_attr); 6214 out: 6215 return error; 6216 } 6217 6218 /** 6219 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6220 * @vport: address of lpfc vport structure. 6221 **/ 6222 void 6223 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6224 { 6225 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6226 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6227 &sysfs_drvr_stat_data_attr); 6228 /* Virtual ports do not need ctrl_reg and mbox */ 6229 if (vport->port_type == LPFC_NPIV_PORT) 6230 return; 6231 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6232 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6233 } 6234 6235 /* 6236 * Dynamic FC Host Attributes Support 6237 */ 6238 6239 /** 6240 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6241 * @shost: kernel scsi host pointer. 6242 **/ 6243 static void 6244 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6245 { 6246 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6247 6248 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6249 sizeof fc_host_symbolic_name(shost)); 6250 } 6251 6252 /** 6253 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6254 * @shost: kernel scsi host pointer. 6255 **/ 6256 static void 6257 lpfc_get_host_port_id(struct Scsi_Host *shost) 6258 { 6259 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6260 6261 /* note: fc_myDID already in cpu endianness */ 6262 fc_host_port_id(shost) = vport->fc_myDID; 6263 } 6264 6265 /** 6266 * lpfc_get_host_port_type - Set the value of the scsi host port type 6267 * @shost: kernel scsi host pointer. 6268 **/ 6269 static void 6270 lpfc_get_host_port_type(struct Scsi_Host *shost) 6271 { 6272 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6273 struct lpfc_hba *phba = vport->phba; 6274 6275 spin_lock_irq(shost->host_lock); 6276 6277 if (vport->port_type == LPFC_NPIV_PORT) { 6278 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6279 } else if (lpfc_is_link_up(phba)) { 6280 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6281 if (vport->fc_flag & FC_PUBLIC_LOOP) 6282 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6283 else 6284 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6285 } else { 6286 if (vport->fc_flag & FC_FABRIC) 6287 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6288 else 6289 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6290 } 6291 } else 6292 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6293 6294 spin_unlock_irq(shost->host_lock); 6295 } 6296 6297 /** 6298 * lpfc_get_host_port_state - Set the value of the scsi host port state 6299 * @shost: kernel scsi host pointer. 6300 **/ 6301 static void 6302 lpfc_get_host_port_state(struct Scsi_Host *shost) 6303 { 6304 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6305 struct lpfc_hba *phba = vport->phba; 6306 6307 spin_lock_irq(shost->host_lock); 6308 6309 if (vport->fc_flag & FC_OFFLINE_MODE) 6310 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6311 else { 6312 switch (phba->link_state) { 6313 case LPFC_LINK_UNKNOWN: 6314 case LPFC_LINK_DOWN: 6315 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6316 break; 6317 case LPFC_LINK_UP: 6318 case LPFC_CLEAR_LA: 6319 case LPFC_HBA_READY: 6320 /* Links up, reports port state accordingly */ 6321 if (vport->port_state < LPFC_VPORT_READY) 6322 fc_host_port_state(shost) = 6323 FC_PORTSTATE_BYPASSED; 6324 else 6325 fc_host_port_state(shost) = 6326 FC_PORTSTATE_ONLINE; 6327 break; 6328 case LPFC_HBA_ERROR: 6329 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6330 break; 6331 default: 6332 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6333 break; 6334 } 6335 } 6336 6337 spin_unlock_irq(shost->host_lock); 6338 } 6339 6340 /** 6341 * lpfc_get_host_speed - Set the value of the scsi host speed 6342 * @shost: kernel scsi host pointer. 6343 **/ 6344 static void 6345 lpfc_get_host_speed(struct Scsi_Host *shost) 6346 { 6347 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6348 struct lpfc_hba *phba = vport->phba; 6349 6350 spin_lock_irq(shost->host_lock); 6351 6352 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6353 switch(phba->fc_linkspeed) { 6354 case LPFC_LINK_SPEED_1GHZ: 6355 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6356 break; 6357 case LPFC_LINK_SPEED_2GHZ: 6358 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6359 break; 6360 case LPFC_LINK_SPEED_4GHZ: 6361 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6362 break; 6363 case LPFC_LINK_SPEED_8GHZ: 6364 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6365 break; 6366 case LPFC_LINK_SPEED_10GHZ: 6367 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6368 break; 6369 case LPFC_LINK_SPEED_16GHZ: 6370 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6371 break; 6372 case LPFC_LINK_SPEED_32GHZ: 6373 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6374 break; 6375 case LPFC_LINK_SPEED_64GHZ: 6376 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6377 break; 6378 case LPFC_LINK_SPEED_128GHZ: 6379 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6380 break; 6381 default: 6382 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6383 break; 6384 } 6385 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6386 switch (phba->fc_linkspeed) { 6387 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6388 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6389 break; 6390 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6391 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6392 break; 6393 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6394 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6395 break; 6396 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6397 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6398 break; 6399 default: 6400 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6401 break; 6402 } 6403 } else 6404 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6405 6406 spin_unlock_irq(shost->host_lock); 6407 } 6408 6409 /** 6410 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6411 * @shost: kernel scsi host pointer. 6412 **/ 6413 static void 6414 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6415 { 6416 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6417 struct lpfc_hba *phba = vport->phba; 6418 u64 node_name; 6419 6420 spin_lock_irq(shost->host_lock); 6421 6422 if ((vport->port_state > LPFC_FLOGI) && 6423 ((vport->fc_flag & FC_FABRIC) || 6424 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6425 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6426 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6427 else 6428 /* fabric is local port if there is no F/FL_Port */ 6429 node_name = 0; 6430 6431 spin_unlock_irq(shost->host_lock); 6432 6433 fc_host_fabric_name(shost) = node_name; 6434 } 6435 6436 /** 6437 * lpfc_get_stats - Return statistical information about the adapter 6438 * @shost: kernel scsi host pointer. 6439 * 6440 * Notes: 6441 * NULL on error for link down, no mbox pool, sli2 active, 6442 * management not allowed, memory allocation error, or mbox error. 6443 * 6444 * Returns: 6445 * NULL for error 6446 * address of the adapter host statistics 6447 **/ 6448 static struct fc_host_statistics * 6449 lpfc_get_stats(struct Scsi_Host *shost) 6450 { 6451 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6452 struct lpfc_hba *phba = vport->phba; 6453 struct lpfc_sli *psli = &phba->sli; 6454 struct fc_host_statistics *hs = &phba->link_stats; 6455 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6456 LPFC_MBOXQ_t *pmboxq; 6457 MAILBOX_t *pmb; 6458 int rc = 0; 6459 6460 /* 6461 * prevent udev from issuing mailbox commands until the port is 6462 * configured. 6463 */ 6464 if (phba->link_state < LPFC_LINK_DOWN || 6465 !phba->mbox_mem_pool || 6466 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6467 return NULL; 6468 6469 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6470 return NULL; 6471 6472 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6473 if (!pmboxq) 6474 return NULL; 6475 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6476 6477 pmb = &pmboxq->u.mb; 6478 pmb->mbxCommand = MBX_READ_STATUS; 6479 pmb->mbxOwner = OWN_HOST; 6480 pmboxq->ctx_buf = NULL; 6481 pmboxq->vport = vport; 6482 6483 if (vport->fc_flag & FC_OFFLINE_MODE) 6484 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6485 else 6486 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6487 6488 if (rc != MBX_SUCCESS) { 6489 if (rc != MBX_TIMEOUT) 6490 mempool_free(pmboxq, phba->mbox_mem_pool); 6491 return NULL; 6492 } 6493 6494 memset(hs, 0, sizeof (struct fc_host_statistics)); 6495 6496 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6497 /* 6498 * The MBX_READ_STATUS returns tx_k_bytes which has to 6499 * converted to words 6500 */ 6501 hs->tx_words = (uint64_t) 6502 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6503 * (uint64_t)256); 6504 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6505 hs->rx_words = (uint64_t) 6506 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6507 * (uint64_t)256); 6508 6509 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6510 pmb->mbxCommand = MBX_READ_LNK_STAT; 6511 pmb->mbxOwner = OWN_HOST; 6512 pmboxq->ctx_buf = NULL; 6513 pmboxq->vport = vport; 6514 6515 if (vport->fc_flag & FC_OFFLINE_MODE) 6516 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6517 else 6518 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6519 6520 if (rc != MBX_SUCCESS) { 6521 if (rc != MBX_TIMEOUT) 6522 mempool_free(pmboxq, phba->mbox_mem_pool); 6523 return NULL; 6524 } 6525 6526 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6527 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6528 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6529 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6530 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6531 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6532 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6533 6534 hs->link_failure_count -= lso->link_failure_count; 6535 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6536 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6537 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6538 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6539 hs->invalid_crc_count -= lso->invalid_crc_count; 6540 hs->error_frames -= lso->error_frames; 6541 6542 if (phba->hba_flag & HBA_FCOE_MODE) { 6543 hs->lip_count = -1; 6544 hs->nos_count = (phba->link_events >> 1); 6545 hs->nos_count -= lso->link_events; 6546 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6547 hs->lip_count = (phba->fc_eventTag >> 1); 6548 hs->lip_count -= lso->link_events; 6549 hs->nos_count = -1; 6550 } else { 6551 hs->lip_count = -1; 6552 hs->nos_count = (phba->fc_eventTag >> 1); 6553 hs->nos_count -= lso->link_events; 6554 } 6555 6556 hs->dumped_frames = -1; 6557 6558 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6559 6560 mempool_free(pmboxq, phba->mbox_mem_pool); 6561 6562 return hs; 6563 } 6564 6565 /** 6566 * lpfc_reset_stats - Copy the adapter link stats information 6567 * @shost: kernel scsi host pointer. 6568 **/ 6569 static void 6570 lpfc_reset_stats(struct Scsi_Host *shost) 6571 { 6572 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6573 struct lpfc_hba *phba = vport->phba; 6574 struct lpfc_sli *psli = &phba->sli; 6575 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6576 LPFC_MBOXQ_t *pmboxq; 6577 MAILBOX_t *pmb; 6578 int rc = 0; 6579 6580 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6581 return; 6582 6583 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6584 if (!pmboxq) 6585 return; 6586 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6587 6588 pmb = &pmboxq->u.mb; 6589 pmb->mbxCommand = MBX_READ_STATUS; 6590 pmb->mbxOwner = OWN_HOST; 6591 pmb->un.varWords[0] = 0x1; /* reset request */ 6592 pmboxq->ctx_buf = NULL; 6593 pmboxq->vport = vport; 6594 6595 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6596 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6597 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6598 else 6599 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6600 6601 if (rc != MBX_SUCCESS) { 6602 if (rc != MBX_TIMEOUT) 6603 mempool_free(pmboxq, phba->mbox_mem_pool); 6604 return; 6605 } 6606 6607 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6608 pmb->mbxCommand = MBX_READ_LNK_STAT; 6609 pmb->mbxOwner = OWN_HOST; 6610 pmboxq->ctx_buf = NULL; 6611 pmboxq->vport = vport; 6612 6613 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6614 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6615 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6616 else 6617 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6618 6619 if (rc != MBX_SUCCESS) { 6620 if (rc != MBX_TIMEOUT) 6621 mempool_free( pmboxq, phba->mbox_mem_pool); 6622 return; 6623 } 6624 6625 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6626 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6627 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6628 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6629 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6630 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6631 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6632 if (phba->hba_flag & HBA_FCOE_MODE) 6633 lso->link_events = (phba->link_events >> 1); 6634 else 6635 lso->link_events = (phba->fc_eventTag >> 1); 6636 6637 psli->stats_start = ktime_get_seconds(); 6638 6639 mempool_free(pmboxq, phba->mbox_mem_pool); 6640 6641 return; 6642 } 6643 6644 /* 6645 * The LPFC driver treats linkdown handling as target loss events so there 6646 * are no sysfs handlers for link_down_tmo. 6647 */ 6648 6649 /** 6650 * lpfc_get_node_by_target - Return the nodelist for a target 6651 * @starget: kernel scsi target pointer. 6652 * 6653 * Returns: 6654 * address of the node list if found 6655 * NULL target not found 6656 **/ 6657 static struct lpfc_nodelist * 6658 lpfc_get_node_by_target(struct scsi_target *starget) 6659 { 6660 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6661 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6662 struct lpfc_nodelist *ndlp; 6663 6664 spin_lock_irq(shost->host_lock); 6665 /* Search for this, mapped, target ID */ 6666 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6667 if (NLP_CHK_NODE_ACT(ndlp) && 6668 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6669 starget->id == ndlp->nlp_sid) { 6670 spin_unlock_irq(shost->host_lock); 6671 return ndlp; 6672 } 6673 } 6674 spin_unlock_irq(shost->host_lock); 6675 return NULL; 6676 } 6677 6678 /** 6679 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6680 * @starget: kernel scsi target pointer. 6681 **/ 6682 static void 6683 lpfc_get_starget_port_id(struct scsi_target *starget) 6684 { 6685 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6686 6687 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6688 } 6689 6690 /** 6691 * lpfc_get_starget_node_name - Set the target node name 6692 * @starget: kernel scsi target pointer. 6693 * 6694 * Description: Set the target node name to the ndlp node name wwn or zero. 6695 **/ 6696 static void 6697 lpfc_get_starget_node_name(struct scsi_target *starget) 6698 { 6699 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6700 6701 fc_starget_node_name(starget) = 6702 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6703 } 6704 6705 /** 6706 * lpfc_get_starget_port_name - Set the target port name 6707 * @starget: kernel scsi target pointer. 6708 * 6709 * Description: set the target port name to the ndlp port name wwn or zero. 6710 **/ 6711 static void 6712 lpfc_get_starget_port_name(struct scsi_target *starget) 6713 { 6714 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6715 6716 fc_starget_port_name(starget) = 6717 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6718 } 6719 6720 /** 6721 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6722 * @rport: fc rport address. 6723 * @timeout: new value for dev loss tmo. 6724 * 6725 * Description: 6726 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6727 * dev_loss_tmo to one. 6728 **/ 6729 static void 6730 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6731 { 6732 if (timeout) 6733 rport->dev_loss_tmo = timeout; 6734 else 6735 rport->dev_loss_tmo = 1; 6736 } 6737 6738 /** 6739 * lpfc_rport_show_function - Return rport target information 6740 * 6741 * Description: 6742 * Macro that uses field to generate a function with the name lpfc_show_rport_ 6743 * 6744 * lpfc_show_rport_##field: returns the bytes formatted in buf 6745 * @cdev: class converted to an fc_rport. 6746 * @buf: on return contains the target_field or zero. 6747 * 6748 * Returns: size of formatted string. 6749 **/ 6750 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 6751 static ssize_t \ 6752 lpfc_show_rport_##field (struct device *dev, \ 6753 struct device_attribute *attr, \ 6754 char *buf) \ 6755 { \ 6756 struct fc_rport *rport = transport_class_to_rport(dev); \ 6757 struct lpfc_rport_data *rdata = rport->hostdata; \ 6758 return snprintf(buf, sz, format_string, \ 6759 (rdata->target) ? cast rdata->target->field : 0); \ 6760 } 6761 6762 #define lpfc_rport_rd_attr(field, format_string, sz) \ 6763 lpfc_rport_show_function(field, format_string, sz, ) \ 6764 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 6765 6766 /** 6767 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 6768 * @fc_vport: The fc_vport who's symbolic name has been changed. 6769 * 6770 * Description: 6771 * This function is called by the transport after the @fc_vport's symbolic name 6772 * has been changed. This function re-registers the symbolic name with the 6773 * switch to propagate the change into the fabric if the vport is active. 6774 **/ 6775 static void 6776 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 6777 { 6778 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 6779 6780 if (vport->port_state == LPFC_VPORT_READY) 6781 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 6782 } 6783 6784 /** 6785 * lpfc_hba_log_verbose_init - Set hba's log verbose level 6786 * @phba: Pointer to lpfc_hba struct. 6787 * 6788 * This function is called by the lpfc_get_cfgparam() routine to set the 6789 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 6790 * log message according to the module's lpfc_log_verbose parameter setting 6791 * before hba port or vport created. 6792 **/ 6793 static void 6794 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 6795 { 6796 phba->cfg_log_verbose = verbose; 6797 } 6798 6799 struct fc_function_template lpfc_transport_functions = { 6800 /* fixed attributes the driver supports */ 6801 .show_host_node_name = 1, 6802 .show_host_port_name = 1, 6803 .show_host_supported_classes = 1, 6804 .show_host_supported_fc4s = 1, 6805 .show_host_supported_speeds = 1, 6806 .show_host_maxframe_size = 1, 6807 6808 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6809 .show_host_symbolic_name = 1, 6810 6811 /* dynamic attributes the driver supports */ 6812 .get_host_port_id = lpfc_get_host_port_id, 6813 .show_host_port_id = 1, 6814 6815 .get_host_port_type = lpfc_get_host_port_type, 6816 .show_host_port_type = 1, 6817 6818 .get_host_port_state = lpfc_get_host_port_state, 6819 .show_host_port_state = 1, 6820 6821 /* active_fc4s is shown but doesn't change (thus no get function) */ 6822 .show_host_active_fc4s = 1, 6823 6824 .get_host_speed = lpfc_get_host_speed, 6825 .show_host_speed = 1, 6826 6827 .get_host_fabric_name = lpfc_get_host_fabric_name, 6828 .show_host_fabric_name = 1, 6829 6830 /* 6831 * The LPFC driver treats linkdown handling as target loss events 6832 * so there are no sysfs handlers for link_down_tmo. 6833 */ 6834 6835 .get_fc_host_stats = lpfc_get_stats, 6836 .reset_fc_host_stats = lpfc_reset_stats, 6837 6838 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6839 .show_rport_maxframe_size = 1, 6840 .show_rport_supported_classes = 1, 6841 6842 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6843 .show_rport_dev_loss_tmo = 1, 6844 6845 .get_starget_port_id = lpfc_get_starget_port_id, 6846 .show_starget_port_id = 1, 6847 6848 .get_starget_node_name = lpfc_get_starget_node_name, 6849 .show_starget_node_name = 1, 6850 6851 .get_starget_port_name = lpfc_get_starget_port_name, 6852 .show_starget_port_name = 1, 6853 6854 .issue_fc_host_lip = lpfc_issue_lip, 6855 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6856 .terminate_rport_io = lpfc_terminate_rport_io, 6857 6858 .dd_fcvport_size = sizeof(struct lpfc_vport *), 6859 6860 .vport_disable = lpfc_vport_disable, 6861 6862 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6863 6864 .bsg_request = lpfc_bsg_request, 6865 .bsg_timeout = lpfc_bsg_timeout, 6866 }; 6867 6868 struct fc_function_template lpfc_vport_transport_functions = { 6869 /* fixed attributes the driver supports */ 6870 .show_host_node_name = 1, 6871 .show_host_port_name = 1, 6872 .show_host_supported_classes = 1, 6873 .show_host_supported_fc4s = 1, 6874 .show_host_supported_speeds = 1, 6875 .show_host_maxframe_size = 1, 6876 6877 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 6878 .show_host_symbolic_name = 1, 6879 6880 /* dynamic attributes the driver supports */ 6881 .get_host_port_id = lpfc_get_host_port_id, 6882 .show_host_port_id = 1, 6883 6884 .get_host_port_type = lpfc_get_host_port_type, 6885 .show_host_port_type = 1, 6886 6887 .get_host_port_state = lpfc_get_host_port_state, 6888 .show_host_port_state = 1, 6889 6890 /* active_fc4s is shown but doesn't change (thus no get function) */ 6891 .show_host_active_fc4s = 1, 6892 6893 .get_host_speed = lpfc_get_host_speed, 6894 .show_host_speed = 1, 6895 6896 .get_host_fabric_name = lpfc_get_host_fabric_name, 6897 .show_host_fabric_name = 1, 6898 6899 /* 6900 * The LPFC driver treats linkdown handling as target loss events 6901 * so there are no sysfs handlers for link_down_tmo. 6902 */ 6903 6904 .get_fc_host_stats = lpfc_get_stats, 6905 .reset_fc_host_stats = lpfc_reset_stats, 6906 6907 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 6908 .show_rport_maxframe_size = 1, 6909 .show_rport_supported_classes = 1, 6910 6911 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 6912 .show_rport_dev_loss_tmo = 1, 6913 6914 .get_starget_port_id = lpfc_get_starget_port_id, 6915 .show_starget_port_id = 1, 6916 6917 .get_starget_node_name = lpfc_get_starget_node_name, 6918 .show_starget_node_name = 1, 6919 6920 .get_starget_port_name = lpfc_get_starget_port_name, 6921 .show_starget_port_name = 1, 6922 6923 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 6924 .terminate_rport_io = lpfc_terminate_rport_io, 6925 6926 .vport_disable = lpfc_vport_disable, 6927 6928 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 6929 }; 6930 6931 /** 6932 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 6933 * @phba: lpfc_hba pointer. 6934 **/ 6935 void 6936 lpfc_get_cfgparam(struct lpfc_hba *phba) 6937 { 6938 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 6939 lpfc_ns_query_init(phba, lpfc_ns_query); 6940 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 6941 lpfc_cr_delay_init(phba, lpfc_cr_delay); 6942 lpfc_cr_count_init(phba, lpfc_cr_count); 6943 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 6944 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 6945 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 6946 lpfc_ack0_init(phba, lpfc_ack0); 6947 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 6948 lpfc_topology_init(phba, lpfc_topology); 6949 lpfc_link_speed_init(phba, lpfc_link_speed); 6950 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 6951 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 6952 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 6953 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 6954 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 6955 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 6956 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 6957 lpfc_use_msi_init(phba, lpfc_use_msi); 6958 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 6959 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 6960 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 6961 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 6962 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 6963 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 6964 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 6965 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 6966 6967 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 6968 if (phba->sli_rev != LPFC_SLI_REV4) 6969 phba->cfg_EnableXLane = 0; 6970 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 6971 6972 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 6973 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 6974 phba->cfg_oas_lun_state = 0; 6975 phba->cfg_oas_lun_status = 0; 6976 phba->cfg_oas_flags = 0; 6977 phba->cfg_oas_priority = 0; 6978 lpfc_enable_bg_init(phba, lpfc_enable_bg); 6979 lpfc_prot_mask_init(phba, lpfc_prot_mask); 6980 lpfc_prot_guard_init(phba, lpfc_prot_guard); 6981 if (phba->sli_rev == LPFC_SLI_REV4) 6982 phba->cfg_poll = 0; 6983 else 6984 phba->cfg_poll = lpfc_poll; 6985 6986 if (phba->cfg_enable_bg) 6987 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 6988 6989 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 6990 6991 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 6992 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 6993 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 6994 6995 /* Initialize first burst. Target vs Initiator are different. */ 6996 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 6997 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 6998 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 6999 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7000 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7001 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7002 7003 if (phba->sli_rev != LPFC_SLI_REV4) { 7004 /* NVME only supported on SLI4 */ 7005 phba->nvmet_support = 0; 7006 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7007 phba->cfg_enable_bbcr = 0; 7008 phba->cfg_xri_rebalancing = 0; 7009 } else { 7010 /* We MUST have FCP support */ 7011 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7012 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7013 } 7014 7015 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7016 7017 phba->cfg_enable_pbde = 0; 7018 7019 /* A value of 0 means use the number of CPUs found in the system */ 7020 if (phba->cfg_hdw_queue == 0) 7021 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7022 if (phba->cfg_irq_chann == 0) 7023 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7024 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7025 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7026 7027 phba->cfg_soft_wwnn = 0L; 7028 phba->cfg_soft_wwpn = 0L; 7029 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7030 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7031 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7032 lpfc_aer_support_init(phba, lpfc_aer_support); 7033 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7034 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7035 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7036 lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); 7037 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7038 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7039 phba->cfg_enable_dss = 1; 7040 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7041 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7042 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7043 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7044 7045 7046 /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to 7047 * accommodate 512K and 1M IOs in a single nvme buf and supply 7048 * enough NVME LS iocb buffers for larger connectivity counts. 7049 */ 7050 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 7051 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 7052 phba->cfg_iocb_cnt = 5; 7053 } 7054 7055 return; 7056 } 7057 7058 /** 7059 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7060 * dependencies between protocols and roles. 7061 * @phba: lpfc_hba pointer. 7062 **/ 7063 void 7064 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7065 { 7066 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) 7067 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7068 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) 7069 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7070 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7071 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7072 7073 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7074 phba->nvmet_support) { 7075 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7076 7077 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7078 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7079 "NVME Target PRLI ACC enable_fb ", 7080 phba->cfg_nvme_enable_fb, 7081 phba->cfg_nvmet_fb_size, 7082 LPFC_NVMET_FB_SZ_MAX); 7083 7084 if (phba->cfg_nvme_enable_fb == 0) 7085 phba->cfg_nvmet_fb_size = 0; 7086 else { 7087 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7088 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7089 } 7090 7091 if (!phba->cfg_nvmet_mrq) 7092 phba->cfg_nvmet_mrq = phba->cfg_irq_chann; 7093 7094 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7095 if (phba->cfg_nvmet_mrq > phba->cfg_irq_chann) { 7096 phba->cfg_nvmet_mrq = phba->cfg_irq_chann; 7097 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7098 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7099 phba->cfg_nvmet_mrq); 7100 } 7101 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7102 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7103 7104 } else { 7105 /* Not NVME Target mode. Turn off Target parameters. */ 7106 phba->nvmet_support = 0; 7107 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF; 7108 phba->cfg_nvmet_fb_size = 0; 7109 } 7110 } 7111 7112 /** 7113 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7114 * @vport: lpfc_vport pointer. 7115 **/ 7116 void 7117 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7118 { 7119 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7120 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7121 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7122 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7123 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7124 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7125 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7126 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7127 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7128 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7129 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7130 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7131 lpfc_max_luns_init(vport, lpfc_max_luns); 7132 lpfc_scan_down_init(vport, lpfc_scan_down); 7133 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7134 return; 7135 } 7136