1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_sli.h" 43 #include "lpfc_sli4.h" 44 #include "lpfc_nl.h" 45 #include "lpfc_disc.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_version.h" 51 #include "lpfc_compat.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_attr.h" 55 56 #define LPFC_DEF_DEVLOSS_TMO 30 57 #define LPFC_MIN_DEVLOSS_TMO 1 58 #define LPFC_MAX_DEVLOSS_TMO 255 59 60 /* 61 * Write key size should be multiple of 4. If write key is changed 62 * make sure that library write key is also changed. 63 */ 64 #define LPFC_REG_WRITE_KEY_SIZE 4 65 #define LPFC_REG_WRITE_KEY "EMLX" 66 67 const char *const trunk_errmsg[] = { /* map errcode */ 68 "", /* There is no such error code at index 0*/ 69 "link negotiated speed does not match existing" 70 " trunk - link was \"low\" speed", 71 "link negotiated speed does not match" 72 " existing trunk - link was \"middle\" speed", 73 "link negotiated speed does not match existing" 74 " trunk - link was \"high\" speed", 75 "Attached to non-trunking port - F_Port", 76 "Attached to non-trunking port - N_Port", 77 "FLOGI response timeout", 78 "non-FLOGI frame received", 79 "Invalid FLOGI response", 80 "Trunking initialization protocol", 81 "Trunk peer device mismatch", 82 }; 83 84 /** 85 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 86 * @incr: integer to convert. 87 * @hdw: ascii string holding converted integer plus a string terminator. 88 * 89 * Description: 90 * JEDEC Joint Electron Device Engineering Council. 91 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 92 * character string. The string is then terminated with a NULL in byte 9. 93 * Hex 0-9 becomes ascii '0' to '9'. 94 * Hex a-f becomes ascii '=' to 'B' capital B. 95 * 96 * Notes: 97 * Coded for 32 bit integers only. 98 **/ 99 static void 100 lpfc_jedec_to_ascii(int incr, char hdw[]) 101 { 102 int i, j; 103 for (i = 0; i < 8; i++) { 104 j = (incr & 0xf); 105 if (j <= 9) 106 hdw[7 - i] = 0x30 + j; 107 else 108 hdw[7 - i] = 0x61 + j - 10; 109 incr = (incr >> 4); 110 } 111 hdw[8] = 0; 112 return; 113 } 114 115 /** 116 * lpfc_drvr_version_show - Return the Emulex driver string with version number 117 * @dev: class unused variable. 118 * @attr: device attribute, not used. 119 * @buf: on return contains the module description text. 120 * 121 * Returns: size of formatted string. 122 **/ 123 static ssize_t 124 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 125 char *buf) 126 { 127 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 128 } 129 130 /** 131 * lpfc_enable_fip_show - Return the fip mode of the HBA 132 * @dev: class unused variable. 133 * @attr: device attribute, not used. 134 * @buf: on return contains the module description text. 135 * 136 * Returns: size of formatted string. 137 **/ 138 static ssize_t 139 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 140 char *buf) 141 { 142 struct Scsi_Host *shost = class_to_shost(dev); 143 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 144 struct lpfc_hba *phba = vport->phba; 145 146 if (phba->hba_flag & HBA_FIP_SUPPORT) 147 return scnprintf(buf, PAGE_SIZE, "1\n"); 148 else 149 return scnprintf(buf, PAGE_SIZE, "0\n"); 150 } 151 152 static ssize_t 153 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 154 char *buf) 155 { 156 struct Scsi_Host *shost = class_to_shost(dev); 157 struct lpfc_vport *vport = shost_priv(shost); 158 struct lpfc_hba *phba = vport->phba; 159 struct lpfc_nvmet_tgtport *tgtp; 160 struct nvme_fc_local_port *localport; 161 struct lpfc_nvme_lport *lport; 162 struct lpfc_nvme_rport *rport; 163 struct lpfc_nodelist *ndlp; 164 struct nvme_fc_remote_port *nrport; 165 struct lpfc_fc4_ctrl_stat *cstat; 166 uint64_t data1, data2, data3; 167 uint64_t totin, totout, tot; 168 char *statep; 169 int i; 170 int len = 0; 171 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 172 173 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 174 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 175 return len; 176 } 177 if (phba->nvmet_support) { 178 if (!phba->targetport) { 179 len = scnprintf(buf, PAGE_SIZE, 180 "NVME Target: x%llx is not allocated\n", 181 wwn_to_u64(vport->fc_portname.u.wwn)); 182 return len; 183 } 184 /* Port state is only one of two values for now. */ 185 if (phba->targetport->port_id) 186 statep = "REGISTERED"; 187 else 188 statep = "INIT"; 189 scnprintf(tmp, sizeof(tmp), 190 "NVME Target Enabled State %s\n", 191 statep); 192 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 193 goto buffer_done; 194 195 scnprintf(tmp, sizeof(tmp), 196 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 197 "NVME Target: lpfc", 198 phba->brd_no, 199 wwn_to_u64(vport->fc_portname.u.wwn), 200 wwn_to_u64(vport->fc_nodename.u.wwn), 201 phba->targetport->port_id); 202 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 203 goto buffer_done; 204 205 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 206 >= PAGE_SIZE) 207 goto buffer_done; 208 209 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 210 scnprintf(tmp, sizeof(tmp), 211 "LS: Rcv %08x Drop %08x Abort %08x\n", 212 atomic_read(&tgtp->rcv_ls_req_in), 213 atomic_read(&tgtp->rcv_ls_req_drop), 214 atomic_read(&tgtp->xmt_ls_abort)); 215 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 216 goto buffer_done; 217 218 if (atomic_read(&tgtp->rcv_ls_req_in) != 219 atomic_read(&tgtp->rcv_ls_req_out)) { 220 scnprintf(tmp, sizeof(tmp), 221 "Rcv LS: in %08x != out %08x\n", 222 atomic_read(&tgtp->rcv_ls_req_in), 223 atomic_read(&tgtp->rcv_ls_req_out)); 224 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 225 goto buffer_done; 226 } 227 228 scnprintf(tmp, sizeof(tmp), 229 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 230 atomic_read(&tgtp->xmt_ls_rsp), 231 atomic_read(&tgtp->xmt_ls_drop), 232 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 233 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 234 goto buffer_done; 235 236 scnprintf(tmp, sizeof(tmp), 237 "LS: RSP Abort %08x xb %08x Err %08x\n", 238 atomic_read(&tgtp->xmt_ls_rsp_aborted), 239 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 240 atomic_read(&tgtp->xmt_ls_rsp_error)); 241 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 242 goto buffer_done; 243 244 scnprintf(tmp, sizeof(tmp), 245 "FCP: Rcv %08x Defer %08x Release %08x " 246 "Drop %08x\n", 247 atomic_read(&tgtp->rcv_fcp_cmd_in), 248 atomic_read(&tgtp->rcv_fcp_cmd_defer), 249 atomic_read(&tgtp->xmt_fcp_release), 250 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 251 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 252 goto buffer_done; 253 254 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 255 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 256 scnprintf(tmp, sizeof(tmp), 257 "Rcv FCP: in %08x != out %08x\n", 258 atomic_read(&tgtp->rcv_fcp_cmd_in), 259 atomic_read(&tgtp->rcv_fcp_cmd_out)); 260 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 261 goto buffer_done; 262 } 263 264 scnprintf(tmp, sizeof(tmp), 265 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 266 "drop %08x\n", 267 atomic_read(&tgtp->xmt_fcp_read), 268 atomic_read(&tgtp->xmt_fcp_read_rsp), 269 atomic_read(&tgtp->xmt_fcp_write), 270 atomic_read(&tgtp->xmt_fcp_rsp), 271 atomic_read(&tgtp->xmt_fcp_drop)); 272 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 273 goto buffer_done; 274 275 scnprintf(tmp, sizeof(tmp), 276 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 277 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 278 atomic_read(&tgtp->xmt_fcp_rsp_error), 279 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 280 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 281 goto buffer_done; 282 283 scnprintf(tmp, sizeof(tmp), 284 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 285 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 286 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 287 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 288 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 289 goto buffer_done; 290 291 scnprintf(tmp, sizeof(tmp), 292 "ABORT: Xmt %08x Cmpl %08x\n", 293 atomic_read(&tgtp->xmt_fcp_abort), 294 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 295 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 296 goto buffer_done; 297 298 scnprintf(tmp, sizeof(tmp), 299 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 300 atomic_read(&tgtp->xmt_abort_sol), 301 atomic_read(&tgtp->xmt_abort_unsol), 302 atomic_read(&tgtp->xmt_abort_rsp), 303 atomic_read(&tgtp->xmt_abort_rsp_error)); 304 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 305 goto buffer_done; 306 307 scnprintf(tmp, sizeof(tmp), 308 "DELAY: ctx %08x fod %08x wqfull %08x\n", 309 atomic_read(&tgtp->defer_ctx), 310 atomic_read(&tgtp->defer_fod), 311 atomic_read(&tgtp->defer_wqfull)); 312 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 313 goto buffer_done; 314 315 /* Calculate outstanding IOs */ 316 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 317 tot += atomic_read(&tgtp->xmt_fcp_release); 318 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 319 320 scnprintf(tmp, sizeof(tmp), 321 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 322 "CTX Outstanding %08llx\n\n", 323 phba->sli4_hba.nvmet_xri_cnt, 324 phba->sli4_hba.nvmet_io_wait_cnt, 325 phba->sli4_hba.nvmet_io_wait_total, 326 tot); 327 strlcat(buf, tmp, PAGE_SIZE); 328 goto buffer_done; 329 } 330 331 localport = vport->localport; 332 if (!localport) { 333 len = scnprintf(buf, PAGE_SIZE, 334 "NVME Initiator x%llx is not allocated\n", 335 wwn_to_u64(vport->fc_portname.u.wwn)); 336 return len; 337 } 338 lport = (struct lpfc_nvme_lport *)localport->private; 339 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 340 goto buffer_done; 341 342 scnprintf(tmp, sizeof(tmp), 343 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 344 phba->brd_no, 345 phba->sli4_hba.max_cfg_param.max_xri, 346 phba->sli4_hba.io_xri_max, 347 lpfc_sli4_get_els_iocb_cnt(phba)); 348 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 349 goto buffer_done; 350 351 /* Port state is only one of two values for now. */ 352 if (localport->port_id) 353 statep = "ONLINE"; 354 else 355 statep = "UNKNOWN "; 356 357 scnprintf(tmp, sizeof(tmp), 358 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 359 "NVME LPORT lpfc", 360 phba->brd_no, 361 wwn_to_u64(vport->fc_portname.u.wwn), 362 wwn_to_u64(vport->fc_nodename.u.wwn), 363 localport->port_id, statep); 364 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 365 goto buffer_done; 366 367 spin_lock_irq(shost->host_lock); 368 369 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 370 nrport = NULL; 371 spin_lock(&ndlp->lock); 372 rport = lpfc_ndlp_get_nrport(ndlp); 373 if (rport) 374 nrport = rport->remoteport; 375 spin_unlock(&ndlp->lock); 376 if (!nrport) 377 continue; 378 379 /* Port state is only one of two values for now. */ 380 switch (nrport->port_state) { 381 case FC_OBJSTATE_ONLINE: 382 statep = "ONLINE"; 383 break; 384 case FC_OBJSTATE_UNKNOWN: 385 statep = "UNKNOWN "; 386 break; 387 default: 388 statep = "UNSUPPORTED"; 389 break; 390 } 391 392 /* Tab in to show lport ownership. */ 393 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 394 goto unlock_buf_done; 395 if (phba->brd_no >= 10) { 396 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 397 goto unlock_buf_done; 398 } 399 400 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 401 nrport->port_name); 402 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 403 goto unlock_buf_done; 404 405 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 406 nrport->node_name); 407 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 408 goto unlock_buf_done; 409 410 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 411 nrport->port_id); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto unlock_buf_done; 414 415 /* An NVME rport can have multiple roles. */ 416 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 417 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 418 goto unlock_buf_done; 419 } 420 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 421 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 422 goto unlock_buf_done; 423 } 424 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 425 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 426 goto unlock_buf_done; 427 } 428 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 429 FC_PORT_ROLE_NVME_TARGET | 430 FC_PORT_ROLE_NVME_DISCOVERY)) { 431 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 432 nrport->port_role); 433 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 434 goto unlock_buf_done; 435 } 436 437 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 438 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 439 goto unlock_buf_done; 440 } 441 spin_unlock_irq(shost->host_lock); 442 443 if (!lport) 444 goto buffer_done; 445 446 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 447 goto buffer_done; 448 449 scnprintf(tmp, sizeof(tmp), 450 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 451 atomic_read(&lport->fc4NvmeLsRequests), 452 atomic_read(&lport->fc4NvmeLsCmpls), 453 atomic_read(&lport->xmt_ls_abort)); 454 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 455 goto buffer_done; 456 457 scnprintf(tmp, sizeof(tmp), 458 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 459 atomic_read(&lport->xmt_ls_err), 460 atomic_read(&lport->cmpl_ls_xb), 461 atomic_read(&lport->cmpl_ls_err)); 462 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 463 goto buffer_done; 464 465 totin = 0; 466 totout = 0; 467 for (i = 0; i < phba->cfg_hdw_queue; i++) { 468 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 469 tot = cstat->io_cmpls; 470 totin += tot; 471 data1 = cstat->input_requests; 472 data2 = cstat->output_requests; 473 data3 = cstat->control_requests; 474 totout += (data1 + data2 + data3); 475 } 476 scnprintf(tmp, sizeof(tmp), 477 "Total FCP Cmpl %016llx Issue %016llx " 478 "OutIO %016llx\n", 479 totin, totout, totout - totin); 480 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 481 goto buffer_done; 482 483 scnprintf(tmp, sizeof(tmp), 484 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 485 "wqerr %08x err %08x\n", 486 atomic_read(&lport->xmt_fcp_abort), 487 atomic_read(&lport->xmt_fcp_noxri), 488 atomic_read(&lport->xmt_fcp_bad_ndlp), 489 atomic_read(&lport->xmt_fcp_qdepth), 490 atomic_read(&lport->xmt_fcp_wqerr), 491 atomic_read(&lport->xmt_fcp_err)); 492 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 493 goto buffer_done; 494 495 scnprintf(tmp, sizeof(tmp), 496 "FCP CMPL: xb %08x Err %08x\n", 497 atomic_read(&lport->cmpl_fcp_xb), 498 atomic_read(&lport->cmpl_fcp_err)); 499 strlcat(buf, tmp, PAGE_SIZE); 500 501 /* host_lock is already unlocked. */ 502 goto buffer_done; 503 504 unlock_buf_done: 505 spin_unlock_irq(shost->host_lock); 506 507 buffer_done: 508 len = strnlen(buf, PAGE_SIZE); 509 510 if (unlikely(len >= (PAGE_SIZE - 1))) { 511 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 512 "6314 Catching potential buffer " 513 "overflow > PAGE_SIZE = %lu bytes\n", 514 PAGE_SIZE); 515 strlcpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_NVME_INFO_MORE_STR), 516 LPFC_NVME_INFO_MORE_STR, 517 sizeof(LPFC_NVME_INFO_MORE_STR) + 1); 518 } 519 520 return len; 521 } 522 523 static ssize_t 524 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 525 char *buf) 526 { 527 struct Scsi_Host *shost = class_to_shost(dev); 528 struct lpfc_vport *vport = shost_priv(shost); 529 struct lpfc_hba *phba = vport->phba; 530 int len; 531 struct lpfc_fc4_ctrl_stat *cstat; 532 u64 data1, data2, data3; 533 u64 tot, totin, totout; 534 int i; 535 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 536 537 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 538 (phba->sli_rev != LPFC_SLI_REV4)) 539 return 0; 540 541 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 542 543 totin = 0; 544 totout = 0; 545 for (i = 0; i < phba->cfg_hdw_queue; i++) { 546 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 547 tot = cstat->io_cmpls; 548 totin += tot; 549 data1 = cstat->input_requests; 550 data2 = cstat->output_requests; 551 data3 = cstat->control_requests; 552 totout += (data1 + data2 + data3); 553 554 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 555 "IO %016llx ", i, data1, data2, data3); 556 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 557 goto buffer_done; 558 559 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 560 tot, ((data1 + data2 + data3) - tot)); 561 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 562 goto buffer_done; 563 } 564 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 565 "OutIO %016llx\n", totin, totout, totout - totin); 566 strlcat(buf, tmp, PAGE_SIZE); 567 568 buffer_done: 569 len = strnlen(buf, PAGE_SIZE); 570 571 return len; 572 } 573 574 static ssize_t 575 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 576 char *buf) 577 { 578 struct Scsi_Host *shost = class_to_shost(dev); 579 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 580 struct lpfc_hba *phba = vport->phba; 581 582 if (phba->cfg_enable_bg) { 583 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 584 return scnprintf(buf, PAGE_SIZE, 585 "BlockGuard Enabled\n"); 586 else 587 return scnprintf(buf, PAGE_SIZE, 588 "BlockGuard Not Supported\n"); 589 } else 590 return scnprintf(buf, PAGE_SIZE, 591 "BlockGuard Disabled\n"); 592 } 593 594 static ssize_t 595 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 596 char *buf) 597 { 598 struct Scsi_Host *shost = class_to_shost(dev); 599 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 600 struct lpfc_hba *phba = vport->phba; 601 602 return scnprintf(buf, PAGE_SIZE, "%llu\n", 603 (unsigned long long)phba->bg_guard_err_cnt); 604 } 605 606 static ssize_t 607 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 608 char *buf) 609 { 610 struct Scsi_Host *shost = class_to_shost(dev); 611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 612 struct lpfc_hba *phba = vport->phba; 613 614 return scnprintf(buf, PAGE_SIZE, "%llu\n", 615 (unsigned long long)phba->bg_apptag_err_cnt); 616 } 617 618 static ssize_t 619 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 620 char *buf) 621 { 622 struct Scsi_Host *shost = class_to_shost(dev); 623 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 624 struct lpfc_hba *phba = vport->phba; 625 626 return scnprintf(buf, PAGE_SIZE, "%llu\n", 627 (unsigned long long)phba->bg_reftag_err_cnt); 628 } 629 630 /** 631 * lpfc_info_show - Return some pci info about the host in ascii 632 * @dev: class converted to a Scsi_host structure. 633 * @attr: device attribute, not used. 634 * @buf: on return contains the formatted text from lpfc_info(). 635 * 636 * Returns: size of formatted string. 637 **/ 638 static ssize_t 639 lpfc_info_show(struct device *dev, struct device_attribute *attr, 640 char *buf) 641 { 642 struct Scsi_Host *host = class_to_shost(dev); 643 644 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 645 } 646 647 /** 648 * lpfc_serialnum_show - Return the hba serial number in ascii 649 * @dev: class converted to a Scsi_host structure. 650 * @attr: device attribute, not used. 651 * @buf: on return contains the formatted text serial number. 652 * 653 * Returns: size of formatted string. 654 **/ 655 static ssize_t 656 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 657 char *buf) 658 { 659 struct Scsi_Host *shost = class_to_shost(dev); 660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 661 struct lpfc_hba *phba = vport->phba; 662 663 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 664 } 665 666 /** 667 * lpfc_temp_sensor_show - Return the temperature sensor level 668 * @dev: class converted to a Scsi_host structure. 669 * @attr: device attribute, not used. 670 * @buf: on return contains the formatted support level. 671 * 672 * Description: 673 * Returns a number indicating the temperature sensor level currently 674 * supported, zero or one in ascii. 675 * 676 * Returns: size of formatted string. 677 **/ 678 static ssize_t 679 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 680 char *buf) 681 { 682 struct Scsi_Host *shost = class_to_shost(dev); 683 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 684 struct lpfc_hba *phba = vport->phba; 685 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 686 } 687 688 /** 689 * lpfc_modeldesc_show - Return the model description of the hba 690 * @dev: class converted to a Scsi_host structure. 691 * @attr: device attribute, not used. 692 * @buf: on return contains the scsi vpd model description. 693 * 694 * Returns: size of formatted string. 695 **/ 696 static ssize_t 697 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 698 char *buf) 699 { 700 struct Scsi_Host *shost = class_to_shost(dev); 701 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 702 struct lpfc_hba *phba = vport->phba; 703 704 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 705 } 706 707 /** 708 * lpfc_modelname_show - Return the model name of the hba 709 * @dev: class converted to a Scsi_host structure. 710 * @attr: device attribute, not used. 711 * @buf: on return contains the scsi vpd model name. 712 * 713 * Returns: size of formatted string. 714 **/ 715 static ssize_t 716 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 717 char *buf) 718 { 719 struct Scsi_Host *shost = class_to_shost(dev); 720 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 721 struct lpfc_hba *phba = vport->phba; 722 723 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 724 } 725 726 /** 727 * lpfc_programtype_show - Return the program type of the hba 728 * @dev: class converted to a Scsi_host structure. 729 * @attr: device attribute, not used. 730 * @buf: on return contains the scsi vpd program type. 731 * 732 * Returns: size of formatted string. 733 **/ 734 static ssize_t 735 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 736 char *buf) 737 { 738 struct Scsi_Host *shost = class_to_shost(dev); 739 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 740 struct lpfc_hba *phba = vport->phba; 741 742 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 743 } 744 745 /** 746 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 747 * @dev: class converted to a Scsi_host structure. 748 * @attr: device attribute, not used. 749 * @buf: on return contains the Menlo Maintenance sli flag. 750 * 751 * Returns: size of formatted string. 752 **/ 753 static ssize_t 754 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 755 { 756 struct Scsi_Host *shost = class_to_shost(dev); 757 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 758 struct lpfc_hba *phba = vport->phba; 759 760 return scnprintf(buf, PAGE_SIZE, "%d\n", 761 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 762 } 763 764 /** 765 * lpfc_vportnum_show - Return the port number in ascii of the hba 766 * @dev: class converted to a Scsi_host structure. 767 * @attr: device attribute, not used. 768 * @buf: on return contains scsi vpd program type. 769 * 770 * Returns: size of formatted string. 771 **/ 772 static ssize_t 773 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 774 char *buf) 775 { 776 struct Scsi_Host *shost = class_to_shost(dev); 777 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 778 struct lpfc_hba *phba = vport->phba; 779 780 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 781 } 782 783 /** 784 * lpfc_fwrev_show - Return the firmware rev running in the hba 785 * @dev: class converted to a Scsi_host structure. 786 * @attr: device attribute, not used. 787 * @buf: on return contains the scsi vpd program type. 788 * 789 * Returns: size of formatted string. 790 **/ 791 static ssize_t 792 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 793 char *buf) 794 { 795 struct Scsi_Host *shost = class_to_shost(dev); 796 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 797 struct lpfc_hba *phba = vport->phba; 798 uint32_t if_type; 799 uint8_t sli_family; 800 char fwrev[FW_REV_STR_SIZE]; 801 int len; 802 803 lpfc_decode_firmware_rev(phba, fwrev, 1); 804 if_type = phba->sli4_hba.pc_sli4_params.if_type; 805 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 806 807 if (phba->sli_rev < LPFC_SLI_REV4) 808 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 809 fwrev, phba->sli_rev); 810 else 811 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 812 fwrev, phba->sli_rev, if_type, sli_family); 813 814 return len; 815 } 816 817 /** 818 * lpfc_hdw_show - Return the jedec information about the hba 819 * @dev: class converted to a Scsi_host structure. 820 * @attr: device attribute, not used. 821 * @buf: on return contains the scsi vpd program type. 822 * 823 * Returns: size of formatted string. 824 **/ 825 static ssize_t 826 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 827 { 828 char hdw[9]; 829 struct Scsi_Host *shost = class_to_shost(dev); 830 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 831 struct lpfc_hba *phba = vport->phba; 832 lpfc_vpd_t *vp = &phba->vpd; 833 834 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 835 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 836 vp->rev.smRev, vp->rev.smFwRev); 837 } 838 839 /** 840 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 841 * @dev: class converted to a Scsi_host structure. 842 * @attr: device attribute, not used. 843 * @buf: on return contains the ROM and FCode ascii strings. 844 * 845 * Returns: size of formatted string. 846 **/ 847 static ssize_t 848 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 849 char *buf) 850 { 851 struct Scsi_Host *shost = class_to_shost(dev); 852 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 853 struct lpfc_hba *phba = vport->phba; 854 char fwrev[FW_REV_STR_SIZE]; 855 856 if (phba->sli_rev < LPFC_SLI_REV4) 857 return scnprintf(buf, PAGE_SIZE, "%s\n", 858 phba->OptionROMVersion); 859 860 lpfc_decode_firmware_rev(phba, fwrev, 1); 861 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 862 } 863 864 /** 865 * lpfc_link_state_show - Return the link state of the port 866 * @dev: class converted to a Scsi_host structure. 867 * @attr: device attribute, not used. 868 * @buf: on return contains text describing the state of the link. 869 * 870 * Notes: 871 * The switch statement has no default so zero will be returned. 872 * 873 * Returns: size of formatted string. 874 **/ 875 static ssize_t 876 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878 { 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 int len = 0; 883 884 switch (phba->link_state) { 885 case LPFC_LINK_UNKNOWN: 886 case LPFC_WARM_START: 887 case LPFC_INIT_START: 888 case LPFC_INIT_MBX_CMDS: 889 case LPFC_LINK_DOWN: 890 case LPFC_HBA_ERROR: 891 if (phba->hba_flag & LINK_DISABLED) 892 len += scnprintf(buf + len, PAGE_SIZE-len, 893 "Link Down - User disabled\n"); 894 else 895 len += scnprintf(buf + len, PAGE_SIZE-len, 896 "Link Down\n"); 897 break; 898 case LPFC_LINK_UP: 899 case LPFC_CLEAR_LA: 900 case LPFC_HBA_READY: 901 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 902 903 switch (vport->port_state) { 904 case LPFC_LOCAL_CFG_LINK: 905 len += scnprintf(buf + len, PAGE_SIZE-len, 906 "Configuring Link\n"); 907 break; 908 case LPFC_FDISC: 909 case LPFC_FLOGI: 910 case LPFC_FABRIC_CFG_LINK: 911 case LPFC_NS_REG: 912 case LPFC_NS_QRY: 913 case LPFC_BUILD_DISC_LIST: 914 case LPFC_DISC_AUTH: 915 len += scnprintf(buf + len, PAGE_SIZE - len, 916 "Discovery\n"); 917 break; 918 case LPFC_VPORT_READY: 919 len += scnprintf(buf + len, PAGE_SIZE - len, 920 "Ready\n"); 921 break; 922 923 case LPFC_VPORT_FAILED: 924 len += scnprintf(buf + len, PAGE_SIZE - len, 925 "Failed\n"); 926 break; 927 928 case LPFC_VPORT_UNKNOWN: 929 len += scnprintf(buf + len, PAGE_SIZE - len, 930 "Unknown\n"); 931 break; 932 } 933 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 934 len += scnprintf(buf + len, PAGE_SIZE-len, 935 " Menlo Maint Mode\n"); 936 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 937 if (vport->fc_flag & FC_PUBLIC_LOOP) 938 len += scnprintf(buf + len, PAGE_SIZE-len, 939 " Public Loop\n"); 940 else 941 len += scnprintf(buf + len, PAGE_SIZE-len, 942 " Private Loop\n"); 943 } else { 944 if (vport->fc_flag & FC_FABRIC) 945 len += scnprintf(buf + len, PAGE_SIZE-len, 946 " Fabric\n"); 947 else 948 len += scnprintf(buf + len, PAGE_SIZE-len, 949 " Point-2-Point\n"); 950 } 951 } 952 953 if ((phba->sli_rev == LPFC_SLI_REV4) && 954 ((bf_get(lpfc_sli_intf_if_type, 955 &phba->sli4_hba.sli_intf) == 956 LPFC_SLI_INTF_IF_TYPE_6))) { 957 struct lpfc_trunk_link link = phba->trunk_link; 958 959 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 960 len += scnprintf(buf + len, PAGE_SIZE - len, 961 "Trunk port 0: Link %s %s\n", 962 (link.link0.state == LPFC_LINK_UP) ? 963 "Up" : "Down. ", 964 trunk_errmsg[link.link0.fault]); 965 966 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 967 len += scnprintf(buf + len, PAGE_SIZE - len, 968 "Trunk port 1: Link %s %s\n", 969 (link.link1.state == LPFC_LINK_UP) ? 970 "Up" : "Down. ", 971 trunk_errmsg[link.link1.fault]); 972 973 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 974 len += scnprintf(buf + len, PAGE_SIZE - len, 975 "Trunk port 2: Link %s %s\n", 976 (link.link2.state == LPFC_LINK_UP) ? 977 "Up" : "Down. ", 978 trunk_errmsg[link.link2.fault]); 979 980 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 981 len += scnprintf(buf + len, PAGE_SIZE - len, 982 "Trunk port 3: Link %s %s\n", 983 (link.link3.state == LPFC_LINK_UP) ? 984 "Up" : "Down. ", 985 trunk_errmsg[link.link3.fault]); 986 987 } 988 989 return len; 990 } 991 992 /** 993 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 994 * @dev: class unused variable. 995 * @attr: device attribute, not used. 996 * @buf: on return contains the module description text. 997 * 998 * Returns: size of formatted string. 999 **/ 1000 static ssize_t 1001 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1002 char *buf) 1003 { 1004 struct Scsi_Host *shost = class_to_shost(dev); 1005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1006 struct lpfc_hba *phba = vport->phba; 1007 1008 if (phba->sli_rev < LPFC_SLI_REV4) 1009 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1010 1011 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1012 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1013 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1014 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1015 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1016 } 1017 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1018 } 1019 1020 /** 1021 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1022 * (OAS) is supported. 1023 * @dev: class unused variable. 1024 * @attr: device attribute, not used. 1025 * @buf: on return contains the module description text. 1026 * 1027 * Returns: size of formatted string. 1028 **/ 1029 static ssize_t 1030 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1031 char *buf) 1032 { 1033 struct Scsi_Host *shost = class_to_shost(dev); 1034 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1035 struct lpfc_hba *phba = vport->phba; 1036 1037 return scnprintf(buf, PAGE_SIZE, "%d\n", 1038 phba->sli4_hba.pc_sli4_params.oas_supported); 1039 } 1040 1041 /** 1042 * lpfc_link_state_store - Transition the link_state on an HBA port 1043 * @dev: class device that is converted into a Scsi_host. 1044 * @attr: device attribute, not used. 1045 * @buf: one or more lpfc_polling_flags values. 1046 * @count: not used. 1047 * 1048 * Returns: 1049 * -EINVAL if the buffer is not "up" or "down" 1050 * return from link state change function if non-zero 1051 * length of the buf on success 1052 **/ 1053 static ssize_t 1054 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1055 const char *buf, size_t count) 1056 { 1057 struct Scsi_Host *shost = class_to_shost(dev); 1058 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1059 struct lpfc_hba *phba = vport->phba; 1060 1061 int status = -EINVAL; 1062 1063 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1064 (phba->link_state == LPFC_LINK_DOWN)) 1065 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1066 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1067 (phba->link_state >= LPFC_LINK_UP)) 1068 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1069 1070 if (status == 0) 1071 return strlen(buf); 1072 else 1073 return status; 1074 } 1075 1076 /** 1077 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1078 * @dev: class device that is converted into a Scsi_host. 1079 * @attr: device attribute, not used. 1080 * @buf: on return contains the sum of fc mapped and unmapped. 1081 * 1082 * Description: 1083 * Returns the ascii text number of the sum of the fc mapped and unmapped 1084 * vport counts. 1085 * 1086 * Returns: size of formatted string. 1087 **/ 1088 static ssize_t 1089 lpfc_num_discovered_ports_show(struct device *dev, 1090 struct device_attribute *attr, char *buf) 1091 { 1092 struct Scsi_Host *shost = class_to_shost(dev); 1093 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1094 1095 return scnprintf(buf, PAGE_SIZE, "%d\n", 1096 vport->fc_map_cnt + vport->fc_unmap_cnt); 1097 } 1098 1099 /** 1100 * lpfc_issue_lip - Misnomer, name carried over from long ago 1101 * @shost: Scsi_Host pointer. 1102 * 1103 * Description: 1104 * Bring the link down gracefully then re-init the link. The firmware will 1105 * re-init the fiber channel interface as required. Does not issue a LIP. 1106 * 1107 * Returns: 1108 * -EPERM port offline or management commands are being blocked 1109 * -ENOMEM cannot allocate memory for the mailbox command 1110 * -EIO error sending the mailbox command 1111 * zero for success 1112 **/ 1113 static int 1114 lpfc_issue_lip(struct Scsi_Host *shost) 1115 { 1116 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1117 struct lpfc_hba *phba = vport->phba; 1118 LPFC_MBOXQ_t *pmboxq; 1119 int mbxstatus = MBXERR_ERROR; 1120 1121 /* 1122 * If the link is offline, disabled or BLOCK_MGMT_IO 1123 * it doesn't make any sense to allow issue_lip 1124 */ 1125 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1126 (phba->hba_flag & LINK_DISABLED) || 1127 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1128 return -EPERM; 1129 1130 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1131 1132 if (!pmboxq) 1133 return -ENOMEM; 1134 1135 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1136 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1137 pmboxq->u.mb.mbxOwner = OWN_HOST; 1138 1139 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1140 1141 if ((mbxstatus == MBX_SUCCESS) && 1142 (pmboxq->u.mb.mbxStatus == 0 || 1143 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1144 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1145 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1146 phba->cfg_link_speed); 1147 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1148 phba->fc_ratov * 2); 1149 if ((mbxstatus == MBX_SUCCESS) && 1150 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1151 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1152 "2859 SLI authentication is required " 1153 "for INIT_LINK but has not done yet\n"); 1154 } 1155 1156 lpfc_set_loopback_flag(phba); 1157 if (mbxstatus != MBX_TIMEOUT) 1158 mempool_free(pmboxq, phba->mbox_mem_pool); 1159 1160 if (mbxstatus == MBXERR_ERROR) 1161 return -EIO; 1162 1163 return 0; 1164 } 1165 1166 int 1167 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1168 { 1169 int cnt = 0; 1170 1171 spin_lock_irq(lock); 1172 while (!list_empty(q)) { 1173 spin_unlock_irq(lock); 1174 msleep(20); 1175 if (cnt++ > 250) { /* 5 secs */ 1176 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1177 "0466 Outstanding IO when " 1178 "bringing Adapter offline\n"); 1179 return 0; 1180 } 1181 spin_lock_irq(lock); 1182 } 1183 spin_unlock_irq(lock); 1184 return 1; 1185 } 1186 1187 /** 1188 * lpfc_do_offline - Issues a mailbox command to bring the link down 1189 * @phba: lpfc_hba pointer. 1190 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1191 * 1192 * Notes: 1193 * Assumes any error from lpfc_do_offline() will be negative. 1194 * Can wait up to 5 seconds for the port ring buffers count 1195 * to reach zero, prints a warning if it is not zero and continues. 1196 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1197 * 1198 * Returns: 1199 * -EIO error posting the event 1200 * zero for success 1201 **/ 1202 static int 1203 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1204 { 1205 struct completion online_compl; 1206 struct lpfc_queue *qp = NULL; 1207 struct lpfc_sli_ring *pring; 1208 struct lpfc_sli *psli; 1209 int status = 0; 1210 int i; 1211 int rc; 1212 1213 init_completion(&online_compl); 1214 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1215 LPFC_EVT_OFFLINE_PREP); 1216 if (rc == 0) 1217 return -ENOMEM; 1218 1219 wait_for_completion(&online_compl); 1220 1221 if (status != 0) 1222 return -EIO; 1223 1224 psli = &phba->sli; 1225 1226 /* 1227 * If freeing the queues have already started, don't access them. 1228 * Otherwise set FREE_WAIT to indicate that queues are being used 1229 * to hold the freeing process until we finish. 1230 */ 1231 spin_lock_irq(&phba->hbalock); 1232 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1233 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1234 } else { 1235 spin_unlock_irq(&phba->hbalock); 1236 goto skip_wait; 1237 } 1238 spin_unlock_irq(&phba->hbalock); 1239 1240 /* Wait a little for things to settle down, but not 1241 * long enough for dev loss timeout to expire. 1242 */ 1243 if (phba->sli_rev != LPFC_SLI_REV4) { 1244 for (i = 0; i < psli->num_rings; i++) { 1245 pring = &psli->sli3_ring[i]; 1246 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1247 &phba->hbalock)) 1248 goto out; 1249 } 1250 } else { 1251 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1252 pring = qp->pring; 1253 if (!pring) 1254 continue; 1255 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1256 &pring->ring_lock)) 1257 goto out; 1258 } 1259 } 1260 out: 1261 spin_lock_irq(&phba->hbalock); 1262 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1263 spin_unlock_irq(&phba->hbalock); 1264 1265 skip_wait: 1266 init_completion(&online_compl); 1267 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1268 if (rc == 0) 1269 return -ENOMEM; 1270 1271 wait_for_completion(&online_compl); 1272 1273 if (status != 0) 1274 return -EIO; 1275 1276 return 0; 1277 } 1278 1279 /** 1280 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1281 * @phba: lpfc_hba pointer. 1282 * 1283 * Description: 1284 * Issues a PCI secondary bus reset for the phba->pcidev. 1285 * 1286 * Notes: 1287 * First walks the bus_list to ensure only PCI devices with Emulex 1288 * vendor id, device ids that support hot reset, only one occurrence 1289 * of function 0, and all ports on the bus are in offline mode to ensure the 1290 * hot reset only affects one valid HBA. 1291 * 1292 * Returns: 1293 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1294 * -ENODEV, NULL ptr to pcidev 1295 * -EBADSLT, detected invalid device 1296 * -EBUSY, port is not in offline state 1297 * 0, successful 1298 */ 1299 static int 1300 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1301 { 1302 struct pci_dev *pdev = phba->pcidev; 1303 struct Scsi_Host *shost = NULL; 1304 struct lpfc_hba *phba_other = NULL; 1305 struct pci_dev *ptr = NULL; 1306 int res; 1307 1308 if (phba->cfg_enable_hba_reset != 2) 1309 return -ENOTSUPP; 1310 1311 if (!pdev) { 1312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1313 return -ENODEV; 1314 } 1315 1316 res = lpfc_check_pci_resettable(phba); 1317 if (res) 1318 return res; 1319 1320 /* Walk the list of devices on the pci_dev's bus */ 1321 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1322 /* Check port is offline */ 1323 shost = pci_get_drvdata(ptr); 1324 if (shost) { 1325 phba_other = 1326 ((struct lpfc_vport *)shost->hostdata)->phba; 1327 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1328 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1329 "8349 WWPN = 0x%02x%02x%02x%02x" 1330 "%02x%02x%02x%02x is not " 1331 "offline!\n", 1332 phba_other->wwpn[0], 1333 phba_other->wwpn[1], 1334 phba_other->wwpn[2], 1335 phba_other->wwpn[3], 1336 phba_other->wwpn[4], 1337 phba_other->wwpn[5], 1338 phba_other->wwpn[6], 1339 phba_other->wwpn[7]); 1340 return -EBUSY; 1341 } 1342 } 1343 } 1344 1345 /* Issue PCI bus reset */ 1346 res = pci_reset_bus(pdev); 1347 if (res) { 1348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1349 "8350 PCI reset bus failed: %d\n", res); 1350 } 1351 1352 return res; 1353 } 1354 1355 /** 1356 * lpfc_selective_reset - Offline then onlines the port 1357 * @phba: lpfc_hba pointer. 1358 * 1359 * Description: 1360 * If the port is configured to allow a reset then the hba is brought 1361 * offline then online. 1362 * 1363 * Notes: 1364 * Assumes any error from lpfc_do_offline() will be negative. 1365 * Do not make this function static. 1366 * 1367 * Returns: 1368 * lpfc_do_offline() return code if not zero 1369 * -EIO reset not configured or error posting the event 1370 * zero for success 1371 **/ 1372 int 1373 lpfc_selective_reset(struct lpfc_hba *phba) 1374 { 1375 struct completion online_compl; 1376 int status = 0; 1377 int rc; 1378 1379 if (!phba->cfg_enable_hba_reset) 1380 return -EACCES; 1381 1382 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1383 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1384 1385 if (status != 0) 1386 return status; 1387 } 1388 1389 init_completion(&online_compl); 1390 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1391 LPFC_EVT_ONLINE); 1392 if (rc == 0) 1393 return -ENOMEM; 1394 1395 wait_for_completion(&online_compl); 1396 1397 if (status != 0) 1398 return -EIO; 1399 1400 return 0; 1401 } 1402 1403 /** 1404 * lpfc_issue_reset - Selectively resets an adapter 1405 * @dev: class device that is converted into a Scsi_host. 1406 * @attr: device attribute, not used. 1407 * @buf: containing the string "selective". 1408 * @count: unused variable. 1409 * 1410 * Description: 1411 * If the buf contains the string "selective" then lpfc_selective_reset() 1412 * is called to perform the reset. 1413 * 1414 * Notes: 1415 * Assumes any error from lpfc_selective_reset() will be negative. 1416 * If lpfc_selective_reset() returns zero then the length of the buffer 1417 * is returned which indicates success 1418 * 1419 * Returns: 1420 * -EINVAL if the buffer does not contain the string "selective" 1421 * length of buf if lpfc-selective_reset() if the call succeeds 1422 * return value of lpfc_selective_reset() if the call fails 1423 **/ 1424 static ssize_t 1425 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1426 const char *buf, size_t count) 1427 { 1428 struct Scsi_Host *shost = class_to_shost(dev); 1429 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1430 struct lpfc_hba *phba = vport->phba; 1431 int status = -EINVAL; 1432 1433 if (!phba->cfg_enable_hba_reset) 1434 return -EACCES; 1435 1436 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1437 status = phba->lpfc_selective_reset(phba); 1438 1439 if (status == 0) 1440 return strlen(buf); 1441 else 1442 return status; 1443 } 1444 1445 /** 1446 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1447 * @phba: lpfc_hba pointer. 1448 * 1449 * Description: 1450 * SLI4 interface type-2 device to wait on the sliport status register for 1451 * the readyness after performing a firmware reset. 1452 * 1453 * Returns: 1454 * zero for success, -EPERM when port does not have privilege to perform the 1455 * reset, -EIO when port timeout from recovering from the reset. 1456 * 1457 * Note: 1458 * As the caller will interpret the return code by value, be careful in making 1459 * change or addition to return codes. 1460 **/ 1461 int 1462 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1463 { 1464 struct lpfc_register portstat_reg = {0}; 1465 int i; 1466 1467 msleep(100); 1468 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1469 &portstat_reg.word0)) 1470 return -EIO; 1471 1472 /* verify if privileged for the request operation */ 1473 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1474 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1475 return -EPERM; 1476 1477 /* wait for the SLI port firmware ready after firmware reset */ 1478 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1479 msleep(10); 1480 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1481 &portstat_reg.word0)) 1482 continue; 1483 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1484 continue; 1485 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1486 continue; 1487 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1488 continue; 1489 break; 1490 } 1491 1492 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1493 return 0; 1494 else 1495 return -EIO; 1496 } 1497 1498 /** 1499 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1500 * @phba: lpfc_hba pointer. 1501 * @opcode: The sli4 config command opcode. 1502 * 1503 * Description: 1504 * Request SLI4 interface type-2 device to perform a physical register set 1505 * access. 1506 * 1507 * Returns: 1508 * zero for success 1509 **/ 1510 static ssize_t 1511 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1512 { 1513 struct completion online_compl; 1514 struct pci_dev *pdev = phba->pcidev; 1515 uint32_t before_fc_flag; 1516 uint32_t sriov_nr_virtfn; 1517 uint32_t reg_val; 1518 int status = 0, rc = 0; 1519 int job_posted = 1, sriov_err; 1520 1521 if (!phba->cfg_enable_hba_reset) 1522 return -EACCES; 1523 1524 if ((phba->sli_rev < LPFC_SLI_REV4) || 1525 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1526 LPFC_SLI_INTF_IF_TYPE_2)) 1527 return -EPERM; 1528 1529 /* Keep state if we need to restore back */ 1530 before_fc_flag = phba->pport->fc_flag; 1531 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1532 1533 /* Disable SR-IOV virtual functions if enabled */ 1534 if (phba->cfg_sriov_nr_virtfn) { 1535 pci_disable_sriov(pdev); 1536 phba->cfg_sriov_nr_virtfn = 0; 1537 } 1538 1539 if (opcode == LPFC_FW_DUMP) 1540 phba->hba_flag |= HBA_FW_DUMP_OP; 1541 1542 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1543 1544 if (status != 0) { 1545 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1546 return status; 1547 } 1548 1549 /* wait for the device to be quiesced before firmware reset */ 1550 msleep(100); 1551 1552 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1553 LPFC_CTL_PDEV_CTL_OFFSET); 1554 1555 if (opcode == LPFC_FW_DUMP) 1556 reg_val |= LPFC_FW_DUMP_REQUEST; 1557 else if (opcode == LPFC_FW_RESET) 1558 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1559 else if (opcode == LPFC_DV_RESET) 1560 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1561 1562 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1563 LPFC_CTL_PDEV_CTL_OFFSET); 1564 /* flush */ 1565 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1566 1567 /* delay driver action following IF_TYPE_2 reset */ 1568 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1569 1570 if (rc == -EPERM) { 1571 /* no privilege for reset */ 1572 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1573 "3150 No privilege to perform the requested " 1574 "access: x%x\n", reg_val); 1575 } else if (rc == -EIO) { 1576 /* reset failed, there is nothing more we can do */ 1577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1578 "3153 Fail to perform the requested " 1579 "access: x%x\n", reg_val); 1580 return rc; 1581 } 1582 1583 /* keep the original port state */ 1584 if (before_fc_flag & FC_OFFLINE_MODE) 1585 goto out; 1586 1587 init_completion(&online_compl); 1588 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1589 LPFC_EVT_ONLINE); 1590 if (!job_posted) 1591 goto out; 1592 1593 wait_for_completion(&online_compl); 1594 1595 out: 1596 /* in any case, restore the virtual functions enabled as before */ 1597 if (sriov_nr_virtfn) { 1598 sriov_err = 1599 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1600 if (!sriov_err) 1601 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1602 } 1603 1604 /* return proper error code */ 1605 if (!rc) { 1606 if (!job_posted) 1607 rc = -ENOMEM; 1608 else if (status) 1609 rc = -EIO; 1610 } 1611 return rc; 1612 } 1613 1614 /** 1615 * lpfc_nport_evt_cnt_show - Return the number of nport events 1616 * @dev: class device that is converted into a Scsi_host. 1617 * @attr: device attribute, not used. 1618 * @buf: on return contains the ascii number of nport events. 1619 * 1620 * Returns: size of formatted string. 1621 **/ 1622 static ssize_t 1623 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1624 char *buf) 1625 { 1626 struct Scsi_Host *shost = class_to_shost(dev); 1627 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1628 struct lpfc_hba *phba = vport->phba; 1629 1630 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1631 } 1632 1633 static int 1634 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1635 { 1636 LPFC_MBOXQ_t *mbox = NULL; 1637 unsigned long val = 0; 1638 char *pval = NULL; 1639 int rc = 0; 1640 1641 if (!strncmp("enable", buff_out, 1642 strlen("enable"))) { 1643 pval = buff_out + strlen("enable") + 1; 1644 rc = kstrtoul(pval, 0, &val); 1645 if (rc) 1646 return rc; /* Invalid number */ 1647 } else if (!strncmp("disable", buff_out, 1648 strlen("disable"))) { 1649 val = 0; 1650 } else { 1651 return -EINVAL; /* Invalid command */ 1652 } 1653 1654 switch (val) { 1655 case 0: 1656 val = 0x0; /* Disable */ 1657 break; 1658 case 2: 1659 val = 0x1; /* Enable two port trunk */ 1660 break; 1661 case 4: 1662 val = 0x2; /* Enable four port trunk */ 1663 break; 1664 default: 1665 return -EINVAL; 1666 } 1667 1668 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1669 "0070 Set trunk mode with val %ld ", val); 1670 1671 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1672 if (!mbox) 1673 return -ENOMEM; 1674 1675 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1676 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1677 12, LPFC_SLI4_MBX_EMBED); 1678 1679 bf_set(lpfc_mbx_set_trunk_mode, 1680 &mbox->u.mqe.un.set_trunk_mode, 1681 val); 1682 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1683 if (rc) 1684 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1685 "0071 Set trunk mode failed with status: %d", 1686 rc); 1687 mempool_free(mbox, phba->mbox_mem_pool); 1688 1689 return 0; 1690 } 1691 1692 /** 1693 * lpfc_board_mode_show - Return the state of the board 1694 * @dev: class device that is converted into a Scsi_host. 1695 * @attr: device attribute, not used. 1696 * @buf: on return contains the state of the adapter. 1697 * 1698 * Returns: size of formatted string. 1699 **/ 1700 static ssize_t 1701 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1702 char *buf) 1703 { 1704 struct Scsi_Host *shost = class_to_shost(dev); 1705 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1706 struct lpfc_hba *phba = vport->phba; 1707 char * state; 1708 1709 if (phba->link_state == LPFC_HBA_ERROR) 1710 state = "error"; 1711 else if (phba->link_state == LPFC_WARM_START) 1712 state = "warm start"; 1713 else if (phba->link_state == LPFC_INIT_START) 1714 state = "offline"; 1715 else 1716 state = "online"; 1717 1718 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1719 } 1720 1721 /** 1722 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1723 * @dev: class device that is converted into a Scsi_host. 1724 * @attr: device attribute, not used. 1725 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1726 * @count: unused variable. 1727 * 1728 * Returns: 1729 * -EACCES if enable hba reset not enabled 1730 * -EINVAL if the buffer does not contain a valid string (see above) 1731 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1732 * buf length greater than zero indicates success 1733 **/ 1734 static ssize_t 1735 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1736 const char *buf, size_t count) 1737 { 1738 struct Scsi_Host *shost = class_to_shost(dev); 1739 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1740 struct lpfc_hba *phba = vport->phba; 1741 struct completion online_compl; 1742 char *board_mode_str = NULL; 1743 int status = 0; 1744 int rc; 1745 1746 if (!phba->cfg_enable_hba_reset) { 1747 status = -EACCES; 1748 goto board_mode_out; 1749 } 1750 1751 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1752 "3050 lpfc_board_mode set to %s\n", buf); 1753 1754 init_completion(&online_compl); 1755 1756 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1757 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1758 LPFC_EVT_ONLINE); 1759 if (rc == 0) { 1760 status = -ENOMEM; 1761 goto board_mode_out; 1762 } 1763 wait_for_completion(&online_compl); 1764 if (status) 1765 status = -EIO; 1766 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1767 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1768 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1769 if (phba->sli_rev == LPFC_SLI_REV4) 1770 status = -EINVAL; 1771 else 1772 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1773 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1774 if (phba->sli_rev == LPFC_SLI_REV4) 1775 status = -EINVAL; 1776 else 1777 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1778 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1779 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1780 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1781 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1782 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1783 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1784 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1785 == 0) 1786 status = lpfc_reset_pci_bus(phba); 1787 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1788 lpfc_issue_hb_tmo(phba); 1789 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1790 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1791 else 1792 status = -EINVAL; 1793 1794 board_mode_out: 1795 if (!status) 1796 return strlen(buf); 1797 else { 1798 board_mode_str = strchr(buf, '\n'); 1799 if (board_mode_str) 1800 *board_mode_str = '\0'; 1801 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1802 "3097 Failed \"%s\", status(%d), " 1803 "fc_flag(x%x)\n", 1804 buf, status, phba->pport->fc_flag); 1805 return status; 1806 } 1807 } 1808 1809 /** 1810 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1811 * @phba: pointer to the adapter structure. 1812 * @mxri: max xri count. 1813 * @axri: available xri count. 1814 * @mrpi: max rpi count. 1815 * @arpi: available rpi count. 1816 * @mvpi: max vpi count. 1817 * @avpi: available vpi count. 1818 * 1819 * Description: 1820 * If an integer pointer for an count is not null then the value for the 1821 * count is returned. 1822 * 1823 * Returns: 1824 * zero on error 1825 * one for success 1826 **/ 1827 static int 1828 lpfc_get_hba_info(struct lpfc_hba *phba, 1829 uint32_t *mxri, uint32_t *axri, 1830 uint32_t *mrpi, uint32_t *arpi, 1831 uint32_t *mvpi, uint32_t *avpi) 1832 { 1833 struct lpfc_mbx_read_config *rd_config; 1834 LPFC_MBOXQ_t *pmboxq; 1835 MAILBOX_t *pmb; 1836 int rc = 0; 1837 uint32_t max_vpi; 1838 1839 /* 1840 * prevent udev from issuing mailbox commands until the port is 1841 * configured. 1842 */ 1843 if (phba->link_state < LPFC_LINK_DOWN || 1844 !phba->mbox_mem_pool || 1845 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1846 return 0; 1847 1848 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1849 return 0; 1850 1851 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1852 if (!pmboxq) 1853 return 0; 1854 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1855 1856 pmb = &pmboxq->u.mb; 1857 pmb->mbxCommand = MBX_READ_CONFIG; 1858 pmb->mbxOwner = OWN_HOST; 1859 pmboxq->ctx_buf = NULL; 1860 1861 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1862 rc = MBX_NOT_FINISHED; 1863 else 1864 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1865 1866 if (rc != MBX_SUCCESS) { 1867 if (rc != MBX_TIMEOUT) 1868 mempool_free(pmboxq, phba->mbox_mem_pool); 1869 return 0; 1870 } 1871 1872 if (phba->sli_rev == LPFC_SLI_REV4) { 1873 rd_config = &pmboxq->u.mqe.un.rd_config; 1874 if (mrpi) 1875 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1876 if (arpi) 1877 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1878 phba->sli4_hba.max_cfg_param.rpi_used; 1879 if (mxri) 1880 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1881 if (axri) 1882 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1883 phba->sli4_hba.max_cfg_param.xri_used; 1884 1885 /* Account for differences with SLI-3. Get vpi count from 1886 * mailbox data and subtract one for max vpi value. 1887 */ 1888 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1889 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1890 1891 /* Limit the max we support */ 1892 if (max_vpi > LPFC_MAX_VPI) 1893 max_vpi = LPFC_MAX_VPI; 1894 if (mvpi) 1895 *mvpi = max_vpi; 1896 if (avpi) 1897 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1898 } else { 1899 if (mrpi) 1900 *mrpi = pmb->un.varRdConfig.max_rpi; 1901 if (arpi) 1902 *arpi = pmb->un.varRdConfig.avail_rpi; 1903 if (mxri) 1904 *mxri = pmb->un.varRdConfig.max_xri; 1905 if (axri) 1906 *axri = pmb->un.varRdConfig.avail_xri; 1907 if (mvpi) 1908 *mvpi = pmb->un.varRdConfig.max_vpi; 1909 if (avpi) { 1910 /* avail_vpi is only valid if link is up and ready */ 1911 if (phba->link_state == LPFC_HBA_READY) 1912 *avpi = pmb->un.varRdConfig.avail_vpi; 1913 else 1914 *avpi = pmb->un.varRdConfig.max_vpi; 1915 } 1916 } 1917 1918 mempool_free(pmboxq, phba->mbox_mem_pool); 1919 return 1; 1920 } 1921 1922 /** 1923 * lpfc_max_rpi_show - Return maximum rpi 1924 * @dev: class device that is converted into a Scsi_host. 1925 * @attr: device attribute, not used. 1926 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1927 * 1928 * Description: 1929 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1930 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1931 * to "Unknown" and the buffer length is returned, therefore the caller 1932 * must check for "Unknown" in the buffer to detect a failure. 1933 * 1934 * Returns: size of formatted string. 1935 **/ 1936 static ssize_t 1937 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1938 char *buf) 1939 { 1940 struct Scsi_Host *shost = class_to_shost(dev); 1941 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1942 struct lpfc_hba *phba = vport->phba; 1943 uint32_t cnt; 1944 1945 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1946 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 1947 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1948 } 1949 1950 /** 1951 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1952 * @dev: class device that is converted into a Scsi_host. 1953 * @attr: device attribute, not used. 1954 * @buf: containing the used rpi count in decimal or "Unknown". 1955 * 1956 * Description: 1957 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1958 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1959 * to "Unknown" and the buffer length is returned, therefore the caller 1960 * must check for "Unknown" in the buffer to detect a failure. 1961 * 1962 * Returns: size of formatted string. 1963 **/ 1964 static ssize_t 1965 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1966 char *buf) 1967 { 1968 struct Scsi_Host *shost = class_to_shost(dev); 1969 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1970 struct lpfc_hba *phba = vport->phba; 1971 uint32_t cnt, acnt; 1972 1973 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1974 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1975 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1976 } 1977 1978 /** 1979 * lpfc_max_xri_show - Return maximum xri 1980 * @dev: class device that is converted into a Scsi_host. 1981 * @attr: device attribute, not used. 1982 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1983 * 1984 * Description: 1985 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1986 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1987 * to "Unknown" and the buffer length is returned, therefore the caller 1988 * must check for "Unknown" in the buffer to detect a failure. 1989 * 1990 * Returns: size of formatted string. 1991 **/ 1992 static ssize_t 1993 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1994 char *buf) 1995 { 1996 struct Scsi_Host *shost = class_to_shost(dev); 1997 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1998 struct lpfc_hba *phba = vport->phba; 1999 uint32_t cnt; 2000 2001 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2002 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2003 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2004 } 2005 2006 /** 2007 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2008 * @dev: class device that is converted into a Scsi_host. 2009 * @attr: device attribute, not used. 2010 * @buf: on return contains the used xri count in decimal or "Unknown". 2011 * 2012 * Description: 2013 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2014 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2015 * to "Unknown" and the buffer length is returned, therefore the caller 2016 * must check for "Unknown" in the buffer to detect a failure. 2017 * 2018 * Returns: size of formatted string. 2019 **/ 2020 static ssize_t 2021 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2022 char *buf) 2023 { 2024 struct Scsi_Host *shost = class_to_shost(dev); 2025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2026 struct lpfc_hba *phba = vport->phba; 2027 uint32_t cnt, acnt; 2028 2029 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2030 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2031 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2032 } 2033 2034 /** 2035 * lpfc_max_vpi_show - Return maximum vpi 2036 * @dev: class device that is converted into a Scsi_host. 2037 * @attr: device attribute, not used. 2038 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2039 * 2040 * Description: 2041 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2042 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2043 * to "Unknown" and the buffer length is returned, therefore the caller 2044 * must check for "Unknown" in the buffer to detect a failure. 2045 * 2046 * Returns: size of formatted string. 2047 **/ 2048 static ssize_t 2049 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2050 char *buf) 2051 { 2052 struct Scsi_Host *shost = class_to_shost(dev); 2053 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2054 struct lpfc_hba *phba = vport->phba; 2055 uint32_t cnt; 2056 2057 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2058 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2059 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2060 } 2061 2062 /** 2063 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2064 * @dev: class device that is converted into a Scsi_host. 2065 * @attr: device attribute, not used. 2066 * @buf: on return contains the used vpi count in decimal or "Unknown". 2067 * 2068 * Description: 2069 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2070 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2071 * to "Unknown" and the buffer length is returned, therefore the caller 2072 * must check for "Unknown" in the buffer to detect a failure. 2073 * 2074 * Returns: size of formatted string. 2075 **/ 2076 static ssize_t 2077 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2078 char *buf) 2079 { 2080 struct Scsi_Host *shost = class_to_shost(dev); 2081 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2082 struct lpfc_hba *phba = vport->phba; 2083 uint32_t cnt, acnt; 2084 2085 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2086 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2087 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2088 } 2089 2090 /** 2091 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2092 * @dev: class device that is converted into a Scsi_host. 2093 * @attr: device attribute, not used. 2094 * @buf: text that must be interpreted to determine if npiv is supported. 2095 * 2096 * Description: 2097 * Buffer will contain text indicating npiv is not suppoerted on the port, 2098 * the port is an NPIV physical port, or it is an npiv virtual port with 2099 * the id of the vport. 2100 * 2101 * Returns: size of formatted string. 2102 **/ 2103 static ssize_t 2104 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2105 char *buf) 2106 { 2107 struct Scsi_Host *shost = class_to_shost(dev); 2108 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2109 struct lpfc_hba *phba = vport->phba; 2110 2111 if (!(phba->max_vpi)) 2112 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2113 if (vport->port_type == LPFC_PHYSICAL_PORT) 2114 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2115 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2116 } 2117 2118 /** 2119 * lpfc_poll_show - Return text about poll support for the adapter 2120 * @dev: class device that is converted into a Scsi_host. 2121 * @attr: device attribute, not used. 2122 * @buf: on return contains the cfg_poll in hex. 2123 * 2124 * Notes: 2125 * cfg_poll should be a lpfc_polling_flags type. 2126 * 2127 * Returns: size of formatted string. 2128 **/ 2129 static ssize_t 2130 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2131 char *buf) 2132 { 2133 struct Scsi_Host *shost = class_to_shost(dev); 2134 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2135 struct lpfc_hba *phba = vport->phba; 2136 2137 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2138 } 2139 2140 /** 2141 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2142 * @dev: class device that is converted into a Scsi_host. 2143 * @attr: device attribute, not used. 2144 * @buf: one or more lpfc_polling_flags values. 2145 * @count: not used. 2146 * 2147 * Notes: 2148 * buf contents converted to integer and checked for a valid value. 2149 * 2150 * Returns: 2151 * -EINVAL if the buffer connot be converted or is out of range 2152 * length of the buf on success 2153 **/ 2154 static ssize_t 2155 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2156 const char *buf, size_t count) 2157 { 2158 struct Scsi_Host *shost = class_to_shost(dev); 2159 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2160 struct lpfc_hba *phba = vport->phba; 2161 uint32_t creg_val; 2162 uint32_t old_val; 2163 int val=0; 2164 2165 if (!isdigit(buf[0])) 2166 return -EINVAL; 2167 2168 if (sscanf(buf, "%i", &val) != 1) 2169 return -EINVAL; 2170 2171 if ((val & 0x3) != val) 2172 return -EINVAL; 2173 2174 if (phba->sli_rev == LPFC_SLI_REV4) 2175 val = 0; 2176 2177 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2178 "3051 lpfc_poll changed from %d to %d\n", 2179 phba->cfg_poll, val); 2180 2181 spin_lock_irq(&phba->hbalock); 2182 2183 old_val = phba->cfg_poll; 2184 2185 if (val & ENABLE_FCP_RING_POLLING) { 2186 if ((val & DISABLE_FCP_RING_INT) && 2187 !(old_val & DISABLE_FCP_RING_INT)) { 2188 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2189 spin_unlock_irq(&phba->hbalock); 2190 return -EINVAL; 2191 } 2192 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2193 writel(creg_val, phba->HCregaddr); 2194 readl(phba->HCregaddr); /* flush */ 2195 2196 lpfc_poll_start_timer(phba); 2197 } 2198 } else if (val != 0x0) { 2199 spin_unlock_irq(&phba->hbalock); 2200 return -EINVAL; 2201 } 2202 2203 if (!(val & DISABLE_FCP_RING_INT) && 2204 (old_val & DISABLE_FCP_RING_INT)) 2205 { 2206 spin_unlock_irq(&phba->hbalock); 2207 del_timer(&phba->fcp_poll_timer); 2208 spin_lock_irq(&phba->hbalock); 2209 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2210 spin_unlock_irq(&phba->hbalock); 2211 return -EINVAL; 2212 } 2213 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2214 writel(creg_val, phba->HCregaddr); 2215 readl(phba->HCregaddr); /* flush */ 2216 } 2217 2218 phba->cfg_poll = val; 2219 2220 spin_unlock_irq(&phba->hbalock); 2221 2222 return strlen(buf); 2223 } 2224 2225 /** 2226 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2227 * @dev: class converted to a Scsi_host structure. 2228 * @attr: device attribute, not used. 2229 * @buf: on return contains the formatted support level. 2230 * 2231 * Description: 2232 * Returns the maximum number of virtual functions a physical function can 2233 * support, 0 will be returned if called on virtual function. 2234 * 2235 * Returns: size of formatted string. 2236 **/ 2237 static ssize_t 2238 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2239 struct device_attribute *attr, 2240 char *buf) 2241 { 2242 struct Scsi_Host *shost = class_to_shost(dev); 2243 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2244 struct lpfc_hba *phba = vport->phba; 2245 uint16_t max_nr_virtfn; 2246 2247 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2248 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2249 } 2250 2251 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2252 { 2253 return val >= min && val <= max; 2254 } 2255 2256 /** 2257 * lpfc_enable_bbcr_set: Sets an attribute value. 2258 * @phba: pointer the the adapter structure. 2259 * @val: integer attribute value. 2260 * 2261 * Description: 2262 * Validates the min and max values then sets the 2263 * adapter config field if in the valid range. prints error message 2264 * and does not set the parameter if invalid. 2265 * 2266 * Returns: 2267 * zero on success 2268 * -EINVAL if val is invalid 2269 */ 2270 static ssize_t 2271 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2272 { 2273 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2275 "3068 lpfc_enable_bbcr changed from %d to " 2276 "%d\n", phba->cfg_enable_bbcr, val); 2277 phba->cfg_enable_bbcr = val; 2278 return 0; 2279 } 2280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2281 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2282 "1\n", val); 2283 return -EINVAL; 2284 } 2285 2286 /* 2287 * lpfc_param_show - Return a cfg attribute value in decimal 2288 * 2289 * Description: 2290 * Macro that given an attr e.g. hba_queue_depth expands 2291 * into a function with the name lpfc_hba_queue_depth_show. 2292 * 2293 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2294 * @dev: class device that is converted into a Scsi_host. 2295 * @attr: device attribute, not used. 2296 * @buf: on return contains the attribute value in decimal. 2297 * 2298 * Returns: size of formatted string. 2299 **/ 2300 #define lpfc_param_show(attr) \ 2301 static ssize_t \ 2302 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2303 char *buf) \ 2304 { \ 2305 struct Scsi_Host *shost = class_to_shost(dev);\ 2306 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2307 struct lpfc_hba *phba = vport->phba;\ 2308 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2309 phba->cfg_##attr);\ 2310 } 2311 2312 /* 2313 * lpfc_param_hex_show - Return a cfg attribute value in hex 2314 * 2315 * Description: 2316 * Macro that given an attr e.g. hba_queue_depth expands 2317 * into a function with the name lpfc_hba_queue_depth_show 2318 * 2319 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2320 * @dev: class device that is converted into a Scsi_host. 2321 * @attr: device attribute, not used. 2322 * @buf: on return contains the attribute value in hexadecimal. 2323 * 2324 * Returns: size of formatted string. 2325 **/ 2326 #define lpfc_param_hex_show(attr) \ 2327 static ssize_t \ 2328 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2329 char *buf) \ 2330 { \ 2331 struct Scsi_Host *shost = class_to_shost(dev);\ 2332 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2333 struct lpfc_hba *phba = vport->phba;\ 2334 uint val = 0;\ 2335 val = phba->cfg_##attr;\ 2336 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2337 phba->cfg_##attr);\ 2338 } 2339 2340 /* 2341 * lpfc_param_init - Initializes a cfg attribute 2342 * 2343 * Description: 2344 * Macro that given an attr e.g. hba_queue_depth expands 2345 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2346 * takes a default argument, a minimum and maximum argument. 2347 * 2348 * lpfc_##attr##_init: Initializes an attribute. 2349 * @phba: pointer the the adapter structure. 2350 * @val: integer attribute value. 2351 * 2352 * Validates the min and max values then sets the adapter config field 2353 * accordingly, or uses the default if out of range and prints an error message. 2354 * 2355 * Returns: 2356 * zero on success 2357 * -EINVAL if default used 2358 **/ 2359 #define lpfc_param_init(attr, default, minval, maxval) \ 2360 static int \ 2361 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2362 { \ 2363 if (lpfc_rangecheck(val, minval, maxval)) {\ 2364 phba->cfg_##attr = val;\ 2365 return 0;\ 2366 }\ 2367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2368 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2369 "allowed range is ["#minval", "#maxval"]\n", val); \ 2370 phba->cfg_##attr = default;\ 2371 return -EINVAL;\ 2372 } 2373 2374 /* 2375 * lpfc_param_set - Set a cfg attribute value 2376 * 2377 * Description: 2378 * Macro that given an attr e.g. hba_queue_depth expands 2379 * into a function with the name lpfc_hba_queue_depth_set 2380 * 2381 * lpfc_##attr##_set: Sets an attribute value. 2382 * @phba: pointer the the adapter structure. 2383 * @val: integer attribute value. 2384 * 2385 * Description: 2386 * Validates the min and max values then sets the 2387 * adapter config field if in the valid range. prints error message 2388 * and does not set the parameter if invalid. 2389 * 2390 * Returns: 2391 * zero on success 2392 * -EINVAL if val is invalid 2393 **/ 2394 #define lpfc_param_set(attr, default, minval, maxval) \ 2395 static int \ 2396 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2397 { \ 2398 if (lpfc_rangecheck(val, minval, maxval)) {\ 2399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2400 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2401 phba->cfg_##attr, val); \ 2402 phba->cfg_##attr = val;\ 2403 return 0;\ 2404 }\ 2405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2406 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2407 "allowed range is ["#minval", "#maxval"]\n", val); \ 2408 return -EINVAL;\ 2409 } 2410 2411 /* 2412 * lpfc_param_store - Set a vport attribute value 2413 * 2414 * Description: 2415 * Macro that given an attr e.g. hba_queue_depth expands 2416 * into a function with the name lpfc_hba_queue_depth_store. 2417 * 2418 * lpfc_##attr##_store: Set an sttribute value. 2419 * @dev: class device that is converted into a Scsi_host. 2420 * @attr: device attribute, not used. 2421 * @buf: contains the attribute value in ascii. 2422 * @count: not used. 2423 * 2424 * Description: 2425 * Convert the ascii text number to an integer, then 2426 * use the lpfc_##attr##_set function to set the value. 2427 * 2428 * Returns: 2429 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2430 * length of buffer upon success. 2431 **/ 2432 #define lpfc_param_store(attr) \ 2433 static ssize_t \ 2434 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2435 const char *buf, size_t count) \ 2436 { \ 2437 struct Scsi_Host *shost = class_to_shost(dev);\ 2438 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2439 struct lpfc_hba *phba = vport->phba;\ 2440 uint val = 0;\ 2441 if (!isdigit(buf[0]))\ 2442 return -EINVAL;\ 2443 if (sscanf(buf, "%i", &val) != 1)\ 2444 return -EINVAL;\ 2445 if (lpfc_##attr##_set(phba, val) == 0) \ 2446 return strlen(buf);\ 2447 else \ 2448 return -EINVAL;\ 2449 } 2450 2451 /* 2452 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2453 * 2454 * Description: 2455 * Macro that given an attr e.g. hba_queue_depth expands 2456 * into a function with the name lpfc_hba_queue_depth_show 2457 * 2458 * lpfc_##attr##_show: prints the attribute value in decimal. 2459 * @dev: class device that is converted into a Scsi_host. 2460 * @attr: device attribute, not used. 2461 * @buf: on return contains the attribute value in decimal. 2462 * 2463 * Returns: length of formatted string. 2464 **/ 2465 #define lpfc_vport_param_show(attr) \ 2466 static ssize_t \ 2467 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2468 char *buf) \ 2469 { \ 2470 struct Scsi_Host *shost = class_to_shost(dev);\ 2471 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2472 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2473 } 2474 2475 /* 2476 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2477 * 2478 * Description: 2479 * Macro that given an attr e.g. 2480 * hba_queue_depth expands into a function with the name 2481 * lpfc_hba_queue_depth_show 2482 * 2483 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2484 * @dev: class device that is converted into a Scsi_host. 2485 * @attr: device attribute, not used. 2486 * @buf: on return contains the attribute value in hexadecimal. 2487 * 2488 * Returns: length of formatted string. 2489 **/ 2490 #define lpfc_vport_param_hex_show(attr) \ 2491 static ssize_t \ 2492 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2493 char *buf) \ 2494 { \ 2495 struct Scsi_Host *shost = class_to_shost(dev);\ 2496 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2497 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2498 } 2499 2500 /* 2501 * lpfc_vport_param_init - Initialize a vport cfg attribute 2502 * 2503 * Description: 2504 * Macro that given an attr e.g. hba_queue_depth expands 2505 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2506 * takes a default argument, a minimum and maximum argument. 2507 * 2508 * lpfc_##attr##_init: validates the min and max values then sets the 2509 * adapter config field accordingly, or uses the default if out of range 2510 * and prints an error message. 2511 * @phba: pointer the the adapter structure. 2512 * @val: integer attribute value. 2513 * 2514 * Returns: 2515 * zero on success 2516 * -EINVAL if default used 2517 **/ 2518 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2519 static int \ 2520 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2521 { \ 2522 if (lpfc_rangecheck(val, minval, maxval)) {\ 2523 vport->cfg_##attr = val;\ 2524 return 0;\ 2525 }\ 2526 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2527 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2528 "allowed range is ["#minval", "#maxval"]\n", val); \ 2529 vport->cfg_##attr = default;\ 2530 return -EINVAL;\ 2531 } 2532 2533 /* 2534 * lpfc_vport_param_set - Set a vport cfg attribute 2535 * 2536 * Description: 2537 * Macro that given an attr e.g. hba_queue_depth expands 2538 * into a function with the name lpfc_hba_queue_depth_set 2539 * 2540 * lpfc_##attr##_set: validates the min and max values then sets the 2541 * adapter config field if in the valid range. prints error message 2542 * and does not set the parameter if invalid. 2543 * @phba: pointer the the adapter structure. 2544 * @val: integer attribute value. 2545 * 2546 * Returns: 2547 * zero on success 2548 * -EINVAL if val is invalid 2549 **/ 2550 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2551 static int \ 2552 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2553 { \ 2554 if (lpfc_rangecheck(val, minval, maxval)) {\ 2555 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2556 "3053 lpfc_" #attr \ 2557 " changed from %d (x%x) to %d (x%x)\n", \ 2558 vport->cfg_##attr, vport->cfg_##attr, \ 2559 val, val); \ 2560 vport->cfg_##attr = val;\ 2561 return 0;\ 2562 }\ 2563 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2564 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2565 "allowed range is ["#minval", "#maxval"]\n", val); \ 2566 return -EINVAL;\ 2567 } 2568 2569 /* 2570 * lpfc_vport_param_store - Set a vport attribute 2571 * 2572 * Description: 2573 * Macro that given an attr e.g. hba_queue_depth 2574 * expands into a function with the name lpfc_hba_queue_depth_store 2575 * 2576 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2577 * use the lpfc_##attr##_set function to set the value. 2578 * @cdev: class device that is converted into a Scsi_host. 2579 * @buf: contains the attribute value in decimal. 2580 * @count: not used. 2581 * 2582 * Returns: 2583 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2584 * length of buffer upon success. 2585 **/ 2586 #define lpfc_vport_param_store(attr) \ 2587 static ssize_t \ 2588 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2589 const char *buf, size_t count) \ 2590 { \ 2591 struct Scsi_Host *shost = class_to_shost(dev);\ 2592 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2593 uint val = 0;\ 2594 if (!isdigit(buf[0]))\ 2595 return -EINVAL;\ 2596 if (sscanf(buf, "%i", &val) != 1)\ 2597 return -EINVAL;\ 2598 if (lpfc_##attr##_set(vport, val) == 0) \ 2599 return strlen(buf);\ 2600 else \ 2601 return -EINVAL;\ 2602 } 2603 2604 2605 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2606 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2607 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2608 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2609 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2610 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2611 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2612 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2613 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2614 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2615 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2616 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2617 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2618 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2619 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2620 lpfc_link_state_store); 2621 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2622 lpfc_option_rom_version_show, NULL); 2623 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2624 lpfc_num_discovered_ports_show, NULL); 2625 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2626 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2627 static DEVICE_ATTR_RO(lpfc_drvr_version); 2628 static DEVICE_ATTR_RO(lpfc_enable_fip); 2629 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2630 lpfc_board_mode_show, lpfc_board_mode_store); 2631 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2632 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2633 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2634 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2635 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2636 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2637 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2638 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2639 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2640 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2641 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2642 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2643 NULL); 2644 2645 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2646 #define WWN_SZ 8 2647 /** 2648 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2649 * @buf: WWN string. 2650 * @cnt: Length of string. 2651 * @wwn: Array to receive converted wwn value. 2652 * 2653 * Returns: 2654 * -EINVAL if the buffer does not contain a valid wwn 2655 * 0 success 2656 **/ 2657 static size_t 2658 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2659 { 2660 unsigned int i, j; 2661 2662 /* Count may include a LF at end of string */ 2663 if (buf[cnt-1] == '\n') 2664 cnt--; 2665 2666 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2667 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2668 return -EINVAL; 2669 2670 memset(wwn, 0, WWN_SZ); 2671 2672 /* Validate and store the new name */ 2673 for (i = 0, j = 0; i < 16; i++) { 2674 if ((*buf >= 'a') && (*buf <= 'f')) 2675 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2676 else if ((*buf >= 'A') && (*buf <= 'F')) 2677 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2678 else if ((*buf >= '0') && (*buf <= '9')) 2679 j = ((j << 4) | (*buf++ - '0')); 2680 else 2681 return -EINVAL; 2682 if (i % 2) { 2683 wwn[i/2] = j & 0xff; 2684 j = 0; 2685 } 2686 } 2687 return 0; 2688 } 2689 /** 2690 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2691 * @dev: class device that is converted into a Scsi_host. 2692 * @attr: device attribute, not used. 2693 * @buf: containing the string lpfc_soft_wwn_key. 2694 * @count: must be size of lpfc_soft_wwn_key. 2695 * 2696 * Returns: 2697 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2698 * length of buf indicates success 2699 **/ 2700 static ssize_t 2701 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2702 const char *buf, size_t count) 2703 { 2704 struct Scsi_Host *shost = class_to_shost(dev); 2705 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2706 struct lpfc_hba *phba = vport->phba; 2707 unsigned int cnt = count; 2708 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2709 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2710 2711 /* 2712 * We're doing a simple sanity check for soft_wwpn setting. 2713 * We require that the user write a specific key to enable 2714 * the soft_wwpn attribute to be settable. Once the attribute 2715 * is written, the enable key resets. If further updates are 2716 * desired, the key must be written again to re-enable the 2717 * attribute. 2718 * 2719 * The "key" is not secret - it is a hardcoded string shown 2720 * here. The intent is to protect against the random user or 2721 * application that is just writing attributes. 2722 */ 2723 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2725 "0051 lpfc soft wwpn can not be enabled: " 2726 "fawwpn is enabled\n"); 2727 return -EINVAL; 2728 } 2729 2730 /* count may include a LF at end of string */ 2731 if (buf[cnt-1] == '\n') 2732 cnt--; 2733 2734 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2735 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2736 return -EINVAL; 2737 2738 phba->soft_wwn_enable = 1; 2739 2740 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2741 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2742 phba->brd_no); 2743 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2744 " The soft_wwpn feature is not supported by Broadcom."); 2745 2746 return count; 2747 } 2748 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2749 2750 /** 2751 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2752 * @dev: class device that is converted into a Scsi_host. 2753 * @attr: device attribute, not used. 2754 * @buf: on return contains the wwpn in hexadecimal. 2755 * 2756 * Returns: size of formatted string. 2757 **/ 2758 static ssize_t 2759 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2760 char *buf) 2761 { 2762 struct Scsi_Host *shost = class_to_shost(dev); 2763 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2764 struct lpfc_hba *phba = vport->phba; 2765 2766 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2767 (unsigned long long)phba->cfg_soft_wwpn); 2768 } 2769 2770 /** 2771 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2772 * @dev: class device that is converted into a Scsi_host. 2773 * @attr: device attribute, not used. 2774 * @buf: contains the wwpn in hexadecimal. 2775 * @count: number of wwpn bytes in buf 2776 * 2777 * Returns: 2778 * -EACCES hba reset not enabled, adapter over temp 2779 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2780 * -EIO error taking adapter offline or online 2781 * value of count on success 2782 **/ 2783 static ssize_t 2784 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2785 const char *buf, size_t count) 2786 { 2787 struct Scsi_Host *shost = class_to_shost(dev); 2788 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2789 struct lpfc_hba *phba = vport->phba; 2790 struct completion online_compl; 2791 int stat1 = 0, stat2 = 0; 2792 unsigned int cnt = count; 2793 u8 wwpn[WWN_SZ]; 2794 int rc; 2795 2796 if (!phba->cfg_enable_hba_reset) 2797 return -EACCES; 2798 spin_lock_irq(&phba->hbalock); 2799 if (phba->over_temp_state == HBA_OVER_TEMP) { 2800 spin_unlock_irq(&phba->hbalock); 2801 return -EACCES; 2802 } 2803 spin_unlock_irq(&phba->hbalock); 2804 /* count may include a LF at end of string */ 2805 if (buf[cnt-1] == '\n') 2806 cnt--; 2807 2808 if (!phba->soft_wwn_enable) 2809 return -EINVAL; 2810 2811 /* lock setting wwpn, wwnn down */ 2812 phba->soft_wwn_enable = 0; 2813 2814 rc = lpfc_wwn_set(buf, cnt, wwpn); 2815 if (rc) { 2816 /* not able to set wwpn, unlock it */ 2817 phba->soft_wwn_enable = 1; 2818 return rc; 2819 } 2820 2821 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2822 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2823 if (phba->cfg_soft_wwnn) 2824 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2825 2826 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2827 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2828 2829 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2830 if (stat1) 2831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2832 "0463 lpfc_soft_wwpn attribute set failed to " 2833 "reinit adapter - %d\n", stat1); 2834 init_completion(&online_compl); 2835 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2836 LPFC_EVT_ONLINE); 2837 if (rc == 0) 2838 return -ENOMEM; 2839 2840 wait_for_completion(&online_compl); 2841 if (stat2) 2842 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2843 "0464 lpfc_soft_wwpn attribute set failed to " 2844 "reinit adapter - %d\n", stat2); 2845 return (stat1 || stat2) ? -EIO : count; 2846 } 2847 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2848 2849 /** 2850 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2851 * @dev: class device that is converted into a Scsi_host. 2852 * @attr: device attribute, not used. 2853 * @buf: on return contains the wwnn in hexadecimal. 2854 * 2855 * Returns: size of formatted string. 2856 **/ 2857 static ssize_t 2858 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2859 char *buf) 2860 { 2861 struct Scsi_Host *shost = class_to_shost(dev); 2862 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2863 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2864 (unsigned long long)phba->cfg_soft_wwnn); 2865 } 2866 2867 /** 2868 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2869 * @dev: class device that is converted into a Scsi_host. 2870 * @attr: device attribute, not used. 2871 * @buf: contains the ww node name in hexadecimal. 2872 * @count: number of wwnn bytes in buf. 2873 * 2874 * Returns: 2875 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2876 * value of count on success 2877 **/ 2878 static ssize_t 2879 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2880 const char *buf, size_t count) 2881 { 2882 struct Scsi_Host *shost = class_to_shost(dev); 2883 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2884 unsigned int cnt = count; 2885 u8 wwnn[WWN_SZ]; 2886 int rc; 2887 2888 /* count may include a LF at end of string */ 2889 if (buf[cnt-1] == '\n') 2890 cnt--; 2891 2892 if (!phba->soft_wwn_enable) 2893 return -EINVAL; 2894 2895 rc = lpfc_wwn_set(buf, cnt, wwnn); 2896 if (rc) { 2897 /* Allow wwnn to be set many times, as long as the enable 2898 * is set. However, once the wwpn is set, everything locks. 2899 */ 2900 return rc; 2901 } 2902 2903 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2904 2905 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2906 "lpfc%d: soft_wwnn set. Value will take effect upon " 2907 "setting of the soft_wwpn\n", phba->brd_no); 2908 2909 return count; 2910 } 2911 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2912 2913 /** 2914 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2915 * Optimized Access Storage (OAS) operations. 2916 * @dev: class device that is converted into a Scsi_host. 2917 * @attr: device attribute, not used. 2918 * @buf: buffer for passing information. 2919 * 2920 * Returns: 2921 * value of count 2922 **/ 2923 static ssize_t 2924 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2925 char *buf) 2926 { 2927 struct Scsi_Host *shost = class_to_shost(dev); 2928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2929 2930 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2931 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2932 } 2933 2934 /** 2935 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2936 * Optimized Access Storage (OAS) operations. 2937 * @dev: class device that is converted into a Scsi_host. 2938 * @attr: device attribute, not used. 2939 * @buf: buffer for passing information. 2940 * @count: Size of the data buffer. 2941 * 2942 * Returns: 2943 * -EINVAL count is invalid, invalid wwpn byte invalid 2944 * -EPERM oas is not supported by hba 2945 * value of count on success 2946 **/ 2947 static ssize_t 2948 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2949 const char *buf, size_t count) 2950 { 2951 struct Scsi_Host *shost = class_to_shost(dev); 2952 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2953 unsigned int cnt = count; 2954 uint8_t wwpn[WWN_SZ]; 2955 int rc; 2956 2957 if (!phba->cfg_fof) 2958 return -EPERM; 2959 2960 /* count may include a LF at end of string */ 2961 if (buf[cnt-1] == '\n') 2962 cnt--; 2963 2964 rc = lpfc_wwn_set(buf, cnt, wwpn); 2965 if (rc) 2966 return rc; 2967 2968 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2969 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2970 if (wwn_to_u64(wwpn) == 0) 2971 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2972 else 2973 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2974 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2975 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2976 return count; 2977 } 2978 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2979 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2980 2981 /** 2982 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2983 * Optimized Access Storage (OAS) operations. 2984 * @dev: class device that is converted into a Scsi_host. 2985 * @attr: device attribute, not used. 2986 * @buf: buffer for passing information. 2987 * 2988 * Returns: 2989 * value of count 2990 **/ 2991 static ssize_t 2992 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2993 char *buf) 2994 { 2995 struct Scsi_Host *shost = class_to_shost(dev); 2996 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2997 2998 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2999 } 3000 3001 /** 3002 * lpfc_oas_priority_store - Store 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 * @count: Size of the data buffer. 3008 * 3009 * Returns: 3010 * -EINVAL count is invalid, invalid wwpn byte invalid 3011 * -EPERM oas is not supported by hba 3012 * value of count on success 3013 **/ 3014 static ssize_t 3015 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3016 const char *buf, size_t count) 3017 { 3018 struct Scsi_Host *shost = class_to_shost(dev); 3019 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3020 unsigned int cnt = count; 3021 unsigned long val; 3022 int ret; 3023 3024 if (!phba->cfg_fof) 3025 return -EPERM; 3026 3027 /* count may include a LF at end of string */ 3028 if (buf[cnt-1] == '\n') 3029 cnt--; 3030 3031 ret = kstrtoul(buf, 0, &val); 3032 if (ret || (val > 0x7f)) 3033 return -EINVAL; 3034 3035 if (val) 3036 phba->cfg_oas_priority = (uint8_t)val; 3037 else 3038 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3039 return count; 3040 } 3041 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3042 lpfc_oas_priority_show, lpfc_oas_priority_store); 3043 3044 /** 3045 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3046 * for Optimized Access Storage (OAS) operations. 3047 * @dev: class device that is converted into a Scsi_host. 3048 * @attr: device attribute, not used. 3049 * @buf: buffer for passing information. 3050 * 3051 * Returns: 3052 * value of count on success 3053 **/ 3054 static ssize_t 3055 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3056 char *buf) 3057 { 3058 struct Scsi_Host *shost = class_to_shost(dev); 3059 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3060 3061 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3062 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3063 } 3064 3065 /** 3066 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3067 * for Optimized Access Storage (OAS) operations. 3068 * @dev: class device that is converted into a Scsi_host. 3069 * @attr: device attribute, not used. 3070 * @buf: buffer for passing information. 3071 * @count: Size of the data buffer. 3072 * 3073 * Returns: 3074 * -EINVAL count is invalid, invalid wwpn byte invalid 3075 * -EPERM oas is not supported by hba 3076 * value of count on success 3077 **/ 3078 static ssize_t 3079 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3080 const char *buf, size_t count) 3081 { 3082 struct Scsi_Host *shost = class_to_shost(dev); 3083 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3084 unsigned int cnt = count; 3085 uint8_t wwpn[WWN_SZ]; 3086 int rc; 3087 3088 if (!phba->cfg_fof) 3089 return -EPERM; 3090 3091 /* count may include a LF at end of string */ 3092 if (buf[cnt-1] == '\n') 3093 cnt--; 3094 3095 rc = lpfc_wwn_set(buf, cnt, wwpn); 3096 if (rc) 3097 return rc; 3098 3099 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3100 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3101 if (wwn_to_u64(wwpn) == 0) 3102 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3103 else 3104 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3105 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3106 if (phba->cfg_oas_priority == 0) 3107 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3108 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3109 return count; 3110 } 3111 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3112 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3113 3114 /** 3115 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3116 * of whether luns will be enabled or disabled 3117 * for Optimized Access Storage (OAS) operations. 3118 * @dev: class device that is converted into a Scsi_host. 3119 * @attr: device attribute, not used. 3120 * @buf: buffer for passing information. 3121 * 3122 * Returns: 3123 * size of formatted string. 3124 **/ 3125 static ssize_t 3126 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3127 char *buf) 3128 { 3129 struct Scsi_Host *shost = class_to_shost(dev); 3130 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3131 3132 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3133 } 3134 3135 /** 3136 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3137 * of whether luns will be enabled or disabled 3138 * for Optimized Access Storage (OAS) operations. 3139 * @dev: class device that is converted into a Scsi_host. 3140 * @attr: device attribute, not used. 3141 * @buf: buffer for passing information. 3142 * @count: Size of the data buffer. 3143 * 3144 * Returns: 3145 * -EINVAL count is invalid, invalid wwpn byte invalid 3146 * -EPERM oas is not supported by hba 3147 * value of count on success 3148 **/ 3149 static ssize_t 3150 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3151 const char *buf, size_t count) 3152 { 3153 struct Scsi_Host *shost = class_to_shost(dev); 3154 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3155 int val = 0; 3156 3157 if (!phba->cfg_fof) 3158 return -EPERM; 3159 3160 if (!isdigit(buf[0])) 3161 return -EINVAL; 3162 3163 if (sscanf(buf, "%i", &val) != 1) 3164 return -EINVAL; 3165 3166 if ((val != 0) && (val != 1)) 3167 return -EINVAL; 3168 3169 phba->cfg_oas_lun_state = val; 3170 return strlen(buf); 3171 } 3172 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3173 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3174 3175 /** 3176 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3177 * Storage (OAS) lun returned by the 3178 * lpfc_oas_lun_show function. 3179 * @dev: class device that is converted into a Scsi_host. 3180 * @attr: device attribute, not used. 3181 * @buf: buffer for passing information. 3182 * 3183 * Returns: 3184 * size of formatted string. 3185 **/ 3186 static ssize_t 3187 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3188 char *buf) 3189 { 3190 struct Scsi_Host *shost = class_to_shost(dev); 3191 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3192 3193 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3194 return -EFAULT; 3195 3196 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3197 } 3198 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3199 lpfc_oas_lun_status_show, NULL); 3200 3201 3202 /** 3203 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3204 * (OAS) operations. 3205 * @phba: lpfc_hba pointer. 3206 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3207 * @tgt_wwpn: wwpn of the target associated with the returned lun 3208 * @lun: the fc lun for setting oas state. 3209 * @oas_state: the oas state to be set to the lun. 3210 * @pri: priority 3211 * 3212 * Returns: 3213 * SUCCESS : 0 3214 * -EPERM OAS is not enabled or not supported by this port. 3215 * 3216 */ 3217 static size_t 3218 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3219 uint8_t tgt_wwpn[], uint64_t lun, 3220 uint32_t oas_state, uint8_t pri) 3221 { 3222 3223 int rc = 0; 3224 3225 if (!phba->cfg_fof) 3226 return -EPERM; 3227 3228 if (oas_state) { 3229 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3230 (struct lpfc_name *)tgt_wwpn, 3231 lun, pri)) 3232 rc = -ENOMEM; 3233 } else { 3234 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3235 (struct lpfc_name *)tgt_wwpn, lun, pri); 3236 } 3237 return rc; 3238 3239 } 3240 3241 /** 3242 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3243 * Access Storage (OAS) operations. 3244 * @phba: lpfc_hba pointer. 3245 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3246 * @tgt_wwpn: wwpn of the target associated with the returned lun 3247 * @lun_status: status of the lun returned lun 3248 * @lun_pri: priority of the lun returned lun 3249 * 3250 * Returns the first or next lun enabled for OAS operations for the vport/target 3251 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3252 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3253 * 3254 * Return: 3255 * lun that is OAS enabled for the vport/target 3256 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3257 */ 3258 static uint64_t 3259 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3260 uint8_t tgt_wwpn[], uint32_t *lun_status, 3261 uint32_t *lun_pri) 3262 { 3263 uint64_t found_lun; 3264 3265 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3266 return NOT_OAS_ENABLED_LUN; 3267 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3268 phba->sli4_hba.oas_next_vpt_wwpn, 3269 (struct lpfc_name *) 3270 phba->sli4_hba.oas_next_tgt_wwpn, 3271 &phba->sli4_hba.oas_next_lun, 3272 (struct lpfc_name *)vpt_wwpn, 3273 (struct lpfc_name *)tgt_wwpn, 3274 &found_lun, lun_status, lun_pri)) 3275 return found_lun; 3276 else 3277 return NOT_OAS_ENABLED_LUN; 3278 } 3279 3280 /** 3281 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3282 * @phba: lpfc_hba pointer. 3283 * @vpt_wwpn: vport wwpn by reference. 3284 * @tgt_wwpn: target wwpn by reference. 3285 * @lun: the fc lun for setting oas state. 3286 * @oas_state: the oas state to be set to the oas_lun. 3287 * @pri: priority 3288 * 3289 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3290 * a lun for OAS operations. 3291 * 3292 * Return: 3293 * SUCCESS: 0 3294 * -ENOMEM: failed to enable an lun for OAS operations 3295 * -EPERM: OAS is not enabled 3296 */ 3297 static ssize_t 3298 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3299 uint8_t tgt_wwpn[], uint64_t lun, 3300 uint32_t oas_state, uint8_t pri) 3301 { 3302 3303 int rc; 3304 3305 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3306 oas_state, pri); 3307 return rc; 3308 } 3309 3310 /** 3311 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3312 * @dev: class device that is converted into a Scsi_host. 3313 * @attr: device attribute, not used. 3314 * @buf: buffer for passing information. 3315 * 3316 * This routine returns a lun enabled for OAS each time the function 3317 * is called. 3318 * 3319 * Returns: 3320 * SUCCESS: size of formatted string. 3321 * -EFAULT: target or vport wwpn was not set properly. 3322 * -EPERM: oas is not enabled. 3323 **/ 3324 static ssize_t 3325 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3326 char *buf) 3327 { 3328 struct Scsi_Host *shost = class_to_shost(dev); 3329 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3330 3331 uint64_t oas_lun; 3332 int len = 0; 3333 3334 if (!phba->cfg_fof) 3335 return -EPERM; 3336 3337 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3338 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3339 return -EFAULT; 3340 3341 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3342 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3343 return -EFAULT; 3344 3345 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3346 phba->cfg_oas_tgt_wwpn, 3347 &phba->cfg_oas_lun_status, 3348 &phba->cfg_oas_priority); 3349 if (oas_lun != NOT_OAS_ENABLED_LUN) 3350 phba->cfg_oas_flags |= OAS_LUN_VALID; 3351 3352 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3353 3354 return len; 3355 } 3356 3357 /** 3358 * lpfc_oas_lun_store - Sets the OAS state for lun 3359 * @dev: class device that is converted into a Scsi_host. 3360 * @attr: device attribute, not used. 3361 * @buf: buffer for passing information. 3362 * @count: size of the formatting string 3363 * 3364 * This function sets the OAS state for lun. Before this function is called, 3365 * the vport wwpn, target wwpn, and oas state need to be set. 3366 * 3367 * Returns: 3368 * SUCCESS: size of formatted string. 3369 * -EFAULT: target or vport wwpn was not set properly. 3370 * -EPERM: oas is not enabled. 3371 * size of formatted string. 3372 **/ 3373 static ssize_t 3374 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3375 const char *buf, size_t count) 3376 { 3377 struct Scsi_Host *shost = class_to_shost(dev); 3378 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3379 uint64_t scsi_lun; 3380 uint32_t pri; 3381 ssize_t rc; 3382 3383 if (!phba->cfg_fof) 3384 return -EPERM; 3385 3386 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3387 return -EFAULT; 3388 3389 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3390 return -EFAULT; 3391 3392 if (!isdigit(buf[0])) 3393 return -EINVAL; 3394 3395 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3396 return -EINVAL; 3397 3398 pri = phba->cfg_oas_priority; 3399 if (pri == 0) 3400 pri = phba->cfg_XLanePriority; 3401 3402 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3403 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3404 "priority 0x%x with oas state %d\n", 3405 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3406 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3407 pri, phba->cfg_oas_lun_state); 3408 3409 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3410 phba->cfg_oas_tgt_wwpn, scsi_lun, 3411 phba->cfg_oas_lun_state, pri); 3412 if (rc) 3413 return rc; 3414 3415 return count; 3416 } 3417 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3418 lpfc_oas_lun_show, lpfc_oas_lun_store); 3419 3420 int lpfc_enable_nvmet_cnt; 3421 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3422 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3423 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3424 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3425 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3426 3427 static int lpfc_poll = 0; 3428 module_param(lpfc_poll, int, S_IRUGO); 3429 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3430 " 0 - none," 3431 " 1 - poll with interrupts enabled" 3432 " 3 - poll and disable FCP ring interrupts"); 3433 3434 static DEVICE_ATTR_RW(lpfc_poll); 3435 3436 int lpfc_no_hba_reset_cnt; 3437 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3438 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3439 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3440 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3441 3442 LPFC_ATTR(sli_mode, 3, 3, 3, 3443 "SLI mode selector: 3 - select SLI-3"); 3444 3445 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3446 "Enable NPIV functionality"); 3447 3448 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3449 "FCF Fast failover=1 Priority failover=2"); 3450 3451 /* 3452 * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of 3453 * aborted IO. 3454 * The range is [0,1]. Default value is 0 3455 * 0, IO completes after ABTS issued (default). 3456 * 1, IO completes after receipt of ABTS response or timeout. 3457 */ 3458 LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); 3459 3460 /* 3461 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3462 # 0x0 = disabled, XRI/OXID use not tracked. 3463 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3464 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3465 */ 3466 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3467 "Enable RRQ functionality"); 3468 3469 /* 3470 # lpfc_suppress_link_up: Bring link up at initialization 3471 # 0x0 = bring link up (issue MBX_INIT_LINK) 3472 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3473 # 0x2 = never bring up link 3474 # Default value is 0. 3475 */ 3476 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3477 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3478 "Suppress Link Up at initialization"); 3479 3480 static ssize_t 3481 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3482 { 3483 struct Scsi_Host *shost = class_to_shost(dev); 3484 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3485 3486 return scnprintf(buf, PAGE_SIZE, "%d\n", 3487 phba->sli4_hba.pc_sli4_params.pls); 3488 } 3489 static DEVICE_ATTR(pls, 0444, 3490 lpfc_pls_show, NULL); 3491 3492 static ssize_t 3493 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3494 { 3495 struct Scsi_Host *shost = class_to_shost(dev); 3496 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3497 3498 return scnprintf(buf, PAGE_SIZE, "%d\n", 3499 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3500 } 3501 static DEVICE_ATTR(pt, 0444, 3502 lpfc_pt_show, NULL); 3503 3504 /* 3505 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3506 # 1 - (1024) 3507 # 2 - (2048) 3508 # 3 - (3072) 3509 # 4 - (4096) 3510 # 5 - (5120) 3511 */ 3512 static ssize_t 3513 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3514 { 3515 struct Scsi_Host *shost = class_to_shost(dev); 3516 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3517 3518 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3519 } 3520 3521 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3522 lpfc_iocb_hw_show, NULL); 3523 static ssize_t 3524 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3525 { 3526 struct Scsi_Host *shost = class_to_shost(dev); 3527 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3528 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3529 3530 return scnprintf(buf, PAGE_SIZE, "%d\n", 3531 pring ? pring->txq_max : 0); 3532 } 3533 3534 static DEVICE_ATTR(txq_hw, S_IRUGO, 3535 lpfc_txq_hw_show, NULL); 3536 static ssize_t 3537 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3538 char *buf) 3539 { 3540 struct Scsi_Host *shost = class_to_shost(dev); 3541 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3542 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3543 3544 return scnprintf(buf, PAGE_SIZE, "%d\n", 3545 pring ? pring->txcmplq_max : 0); 3546 } 3547 3548 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3549 lpfc_txcmplq_hw_show, NULL); 3550 3551 /* 3552 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3553 # until the timer expires. Value range is [0,255]. Default value is 30. 3554 */ 3555 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3556 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3557 module_param(lpfc_nodev_tmo, int, 0); 3558 MODULE_PARM_DESC(lpfc_nodev_tmo, 3559 "Seconds driver will hold I/O waiting " 3560 "for a device to come back"); 3561 3562 /** 3563 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3564 * @dev: class converted to a Scsi_host structure. 3565 * @attr: device attribute, not used. 3566 * @buf: on return contains the dev loss timeout in decimal. 3567 * 3568 * Returns: size of formatted string. 3569 **/ 3570 static ssize_t 3571 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3572 char *buf) 3573 { 3574 struct Scsi_Host *shost = class_to_shost(dev); 3575 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3576 3577 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3578 } 3579 3580 /** 3581 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3582 * @vport: lpfc vport structure pointer. 3583 * @val: contains the nodev timeout value. 3584 * 3585 * Description: 3586 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3587 * a kernel error message is printed and zero is returned. 3588 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3589 * Otherwise nodev tmo is set to the default value. 3590 * 3591 * Returns: 3592 * zero if already set or if val is in range 3593 * -EINVAL val out of range 3594 **/ 3595 static int 3596 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3597 { 3598 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3599 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3600 if (val != LPFC_DEF_DEVLOSS_TMO) 3601 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3602 "0407 Ignoring lpfc_nodev_tmo module " 3603 "parameter because lpfc_devloss_tmo " 3604 "is set.\n"); 3605 return 0; 3606 } 3607 3608 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3609 vport->cfg_nodev_tmo = val; 3610 vport->cfg_devloss_tmo = val; 3611 return 0; 3612 } 3613 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3614 "0400 lpfc_nodev_tmo attribute cannot be set to" 3615 " %d, allowed range is [%d, %d]\n", 3616 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3617 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3618 return -EINVAL; 3619 } 3620 3621 /** 3622 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3623 * @vport: lpfc vport structure pointer. 3624 * 3625 * Description: 3626 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3627 **/ 3628 static void 3629 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3630 { 3631 struct Scsi_Host *shost; 3632 struct lpfc_nodelist *ndlp; 3633 #if (IS_ENABLED(CONFIG_NVME_FC)) 3634 struct lpfc_nvme_rport *rport; 3635 struct nvme_fc_remote_port *remoteport = NULL; 3636 #endif 3637 3638 shost = lpfc_shost_from_vport(vport); 3639 spin_lock_irq(shost->host_lock); 3640 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3641 if (ndlp->rport) 3642 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3643 #if (IS_ENABLED(CONFIG_NVME_FC)) 3644 spin_lock(&ndlp->lock); 3645 rport = lpfc_ndlp_get_nrport(ndlp); 3646 if (rport) 3647 remoteport = rport->remoteport; 3648 spin_unlock(&ndlp->lock); 3649 if (rport && remoteport) 3650 nvme_fc_set_remoteport_devloss(remoteport, 3651 vport->cfg_devloss_tmo); 3652 #endif 3653 } 3654 spin_unlock_irq(shost->host_lock); 3655 } 3656 3657 /** 3658 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3659 * @vport: lpfc vport structure pointer. 3660 * @val: contains the tmo value. 3661 * 3662 * Description: 3663 * If the devloss tmo is already set or the vport dev loss tmo has changed 3664 * then a kernel error message is printed and zero is returned. 3665 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3666 * Otherwise nodev tmo is set to the default value. 3667 * 3668 * Returns: 3669 * zero if already set or if val is in range 3670 * -EINVAL val out of range 3671 **/ 3672 static int 3673 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3674 { 3675 if (vport->dev_loss_tmo_changed || 3676 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3677 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3678 "0401 Ignoring change to lpfc_nodev_tmo " 3679 "because lpfc_devloss_tmo is set.\n"); 3680 return 0; 3681 } 3682 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3683 vport->cfg_nodev_tmo = val; 3684 vport->cfg_devloss_tmo = val; 3685 /* 3686 * For compat: set the fc_host dev loss so new rports 3687 * will get the value. 3688 */ 3689 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3690 lpfc_update_rport_devloss_tmo(vport); 3691 return 0; 3692 } 3693 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3694 "0403 lpfc_nodev_tmo attribute cannot be set to " 3695 "%d, allowed range is [%d, %d]\n", 3696 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3697 return -EINVAL; 3698 } 3699 3700 lpfc_vport_param_store(nodev_tmo) 3701 3702 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3703 3704 /* 3705 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3706 # disappear until the timer expires. Value range is [0,255]. Default 3707 # value is 30. 3708 */ 3709 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3710 MODULE_PARM_DESC(lpfc_devloss_tmo, 3711 "Seconds driver will hold I/O waiting " 3712 "for a device to come back"); 3713 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3714 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3715 lpfc_vport_param_show(devloss_tmo) 3716 3717 /** 3718 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3719 * @vport: lpfc vport structure pointer. 3720 * @val: contains the tmo value. 3721 * 3722 * Description: 3723 * If val is in a valid range then set the vport nodev tmo, 3724 * devloss tmo, also set the vport dev loss tmo changed flag. 3725 * Else a kernel error message is printed. 3726 * 3727 * Returns: 3728 * zero if val is in range 3729 * -EINVAL val out of range 3730 **/ 3731 static int 3732 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3733 { 3734 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3735 vport->cfg_nodev_tmo = val; 3736 vport->cfg_devloss_tmo = val; 3737 vport->dev_loss_tmo_changed = 1; 3738 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3739 lpfc_update_rport_devloss_tmo(vport); 3740 return 0; 3741 } 3742 3743 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3744 "0404 lpfc_devloss_tmo attribute cannot be set to " 3745 "%d, allowed range is [%d, %d]\n", 3746 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3747 return -EINVAL; 3748 } 3749 3750 lpfc_vport_param_store(devloss_tmo) 3751 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3752 3753 /* 3754 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3755 * lpfc_suppress_rsp = 0 Disable 3756 * lpfc_suppress_rsp = 1 Enable (default) 3757 * 3758 */ 3759 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3760 "Enable suppress rsp feature is firmware supports it"); 3761 3762 /* 3763 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3764 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3765 * lpfc_nvmet_mrq = 1 use a single RQ pair 3766 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3767 * 3768 */ 3769 LPFC_ATTR_R(nvmet_mrq, 3770 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3771 "Specify number of RQ pairs for processing NVMET cmds"); 3772 3773 /* 3774 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3775 * to each NVMET RQ. Range 64 to 2048, default is 512. 3776 */ 3777 LPFC_ATTR_R(nvmet_mrq_post, 3778 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3779 LPFC_NVMET_RQE_DEF_COUNT, 3780 "Specify number of RQ buffers to initially post"); 3781 3782 /* 3783 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3784 * Supported Values: 1 - register just FCP 3785 * 3 - register both FCP and NVME 3786 * Supported values are [1,3]. Default value is 3 3787 */ 3788 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3789 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3790 "Enable FC4 Protocol support - FCP / NVME"); 3791 3792 /* 3793 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3794 # deluged with LOTS of information. 3795 # You can set a bit mask to record specific types of verbose messages: 3796 # See lpfc_logmsh.h for definitions. 3797 */ 3798 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3799 "Verbose logging bit-mask"); 3800 3801 /* 3802 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3803 # objects that have been registered with the nameserver after login. 3804 */ 3805 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3806 "Deregister nameserver objects before LOGO"); 3807 3808 /* 3809 # lun_queue_depth: This parameter is used to limit the number of outstanding 3810 # commands per FCP LUN. 3811 */ 3812 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3813 "Max number of FCP commands we can queue to a specific LUN"); 3814 3815 /* 3816 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3817 # commands per target port. Value range is [10,65535]. Default value is 65535. 3818 */ 3819 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3820 module_param(lpfc_tgt_queue_depth, uint, 0444); 3821 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3822 lpfc_vport_param_show(tgt_queue_depth); 3823 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3824 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3825 3826 /** 3827 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3828 * @vport: lpfc vport structure pointer. 3829 * @val: integer attribute value. 3830 * 3831 * Description: Sets the parameter to the new value. 3832 * 3833 * Returns: 3834 * zero on success 3835 * -EINVAL if val is invalid 3836 */ 3837 static int 3838 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3839 { 3840 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3841 struct lpfc_nodelist *ndlp; 3842 3843 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3844 return -EINVAL; 3845 3846 if (val == vport->cfg_tgt_queue_depth) 3847 return 0; 3848 3849 spin_lock_irq(shost->host_lock); 3850 vport->cfg_tgt_queue_depth = val; 3851 3852 /* Next loop thru nodelist and change cmd_qdepth */ 3853 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3854 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3855 3856 spin_unlock_irq(shost->host_lock); 3857 return 0; 3858 } 3859 3860 lpfc_vport_param_store(tgt_queue_depth); 3861 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3862 3863 /* 3864 # hba_queue_depth: This parameter is used to limit the number of outstanding 3865 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3866 # value is greater than the maximum number of exchanges supported by the HBA, 3867 # then maximum number of exchanges supported by the HBA is used to determine 3868 # the hba_queue_depth. 3869 */ 3870 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3871 "Max number of FCP commands we can queue to a lpfc HBA"); 3872 3873 /* 3874 # peer_port_login: This parameter allows/prevents logins 3875 # between peer ports hosted on the same physical port. 3876 # When this parameter is set 0 peer ports of same physical port 3877 # are not allowed to login to each other. 3878 # When this parameter is set 1 peer ports of same physical port 3879 # are allowed to login to each other. 3880 # Default value of this parameter is 0. 3881 */ 3882 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3883 "Allow peer ports on the same physical port to login to each " 3884 "other."); 3885 3886 /* 3887 # restrict_login: This parameter allows/prevents logins 3888 # between Virtual Ports and remote initiators. 3889 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3890 # other initiators and will attempt to PLOGI all remote ports. 3891 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3892 # remote ports and will not attempt to PLOGI to other initiators. 3893 # This parameter does not restrict to the physical port. 3894 # This parameter does not restrict logins to Fabric resident remote ports. 3895 # Default value of this parameter is 1. 3896 */ 3897 static int lpfc_restrict_login = 1; 3898 module_param(lpfc_restrict_login, int, S_IRUGO); 3899 MODULE_PARM_DESC(lpfc_restrict_login, 3900 "Restrict virtual ports login to remote initiators."); 3901 lpfc_vport_param_show(restrict_login); 3902 3903 /** 3904 * lpfc_restrict_login_init - Set the vport restrict login flag 3905 * @vport: lpfc vport structure pointer. 3906 * @val: contains the restrict login value. 3907 * 3908 * Description: 3909 * If val is not in a valid range then log a kernel error message and set 3910 * the vport restrict login to one. 3911 * If the port type is physical clear the restrict login flag and return. 3912 * Else set the restrict login flag to val. 3913 * 3914 * Returns: 3915 * zero if val is in range 3916 * -EINVAL val out of range 3917 **/ 3918 static int 3919 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3920 { 3921 if (val < 0 || val > 1) { 3922 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3923 "0422 lpfc_restrict_login attribute cannot " 3924 "be set to %d, allowed range is [0, 1]\n", 3925 val); 3926 vport->cfg_restrict_login = 1; 3927 return -EINVAL; 3928 } 3929 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3930 vport->cfg_restrict_login = 0; 3931 return 0; 3932 } 3933 vport->cfg_restrict_login = val; 3934 return 0; 3935 } 3936 3937 /** 3938 * lpfc_restrict_login_set - Set the vport restrict login flag 3939 * @vport: lpfc vport structure pointer. 3940 * @val: contains the restrict login value. 3941 * 3942 * Description: 3943 * If val is not in a valid range then log a kernel error message and set 3944 * the vport restrict login to one. 3945 * If the port type is physical and the val is not zero log a kernel 3946 * error message, clear the restrict login flag and return zero. 3947 * Else set the restrict login flag to val. 3948 * 3949 * Returns: 3950 * zero if val is in range 3951 * -EINVAL val out of range 3952 **/ 3953 static int 3954 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3955 { 3956 if (val < 0 || val > 1) { 3957 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3958 "0425 lpfc_restrict_login attribute cannot " 3959 "be set to %d, allowed range is [0, 1]\n", 3960 val); 3961 vport->cfg_restrict_login = 1; 3962 return -EINVAL; 3963 } 3964 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3965 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3966 "0468 lpfc_restrict_login must be 0 for " 3967 "Physical ports.\n"); 3968 vport->cfg_restrict_login = 0; 3969 return 0; 3970 } 3971 vport->cfg_restrict_login = val; 3972 return 0; 3973 } 3974 lpfc_vport_param_store(restrict_login); 3975 static DEVICE_ATTR_RW(lpfc_restrict_login); 3976 3977 /* 3978 # Some disk devices have a "select ID" or "select Target" capability. 3979 # From a protocol standpoint "select ID" usually means select the 3980 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3981 # annex" which contains a table that maps a "select ID" (a number 3982 # between 0 and 7F) to an ALPA. By default, for compatibility with 3983 # older drivers, the lpfc driver scans this table from low ALPA to high 3984 # ALPA. 3985 # 3986 # Turning on the scan-down variable (on = 1, off = 0) will 3987 # cause the lpfc driver to use an inverted table, effectively 3988 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3989 # 3990 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3991 # and will not work across a fabric. Also this parameter will take 3992 # effect only in the case when ALPA map is not available.) 3993 */ 3994 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3995 "Start scanning for devices from highest ALPA to lowest"); 3996 3997 /* 3998 # lpfc_topology: link topology for init link 3999 # 0x0 = attempt loop mode then point-to-point 4000 # 0x01 = internal loopback mode 4001 # 0x02 = attempt point-to-point mode only 4002 # 0x04 = attempt loop mode only 4003 # 0x06 = attempt point-to-point mode then loop 4004 # Set point-to-point mode if you want to run as an N_Port. 4005 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4006 # Default value is 0. 4007 */ 4008 LPFC_ATTR(topology, 0, 0, 6, 4009 "Select Fibre Channel topology"); 4010 4011 /** 4012 * lpfc_topology_store - Set the adapters topology field 4013 * @dev: class device that is converted into a scsi_host. 4014 * @attr:device attribute, not used. 4015 * @buf: buffer for passing information. 4016 * @count: size of the data buffer. 4017 * 4018 * Description: 4019 * If val is in a valid range then set the adapter's topology field and 4020 * issue a lip; if the lip fails reset the topology to the old value. 4021 * 4022 * If the value is not in range log a kernel error message and return an error. 4023 * 4024 * Returns: 4025 * zero if val is in range and lip okay 4026 * non-zero return value from lpfc_issue_lip() 4027 * -EINVAL val out of range 4028 **/ 4029 static ssize_t 4030 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4031 const char *buf, size_t count) 4032 { 4033 struct Scsi_Host *shost = class_to_shost(dev); 4034 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4035 struct lpfc_hba *phba = vport->phba; 4036 int val = 0; 4037 int nolip = 0; 4038 const char *val_buf = buf; 4039 int err; 4040 uint32_t prev_val; 4041 u8 sli_family, if_type; 4042 4043 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4044 nolip = 1; 4045 val_buf = &buf[strlen("nolip ")]; 4046 } 4047 4048 if (!isdigit(val_buf[0])) 4049 return -EINVAL; 4050 if (sscanf(val_buf, "%i", &val) != 1) 4051 return -EINVAL; 4052 4053 if (val >= 0 && val <= 6) { 4054 prev_val = phba->cfg_topology; 4055 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4056 val == 4) { 4057 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4058 "3113 Loop mode not supported at speed %d\n", 4059 val); 4060 return -EINVAL; 4061 } 4062 /* 4063 * The 'topology' is not a configurable parameter if : 4064 * - persistent topology enabled 4065 * - ASIC_GEN_NUM >= 0xC, with no private loop support 4066 */ 4067 sli_family = bf_get(lpfc_sli_intf_sli_family, 4068 &phba->sli4_hba.sli_intf); 4069 if_type = bf_get(lpfc_sli_intf_if_type, 4070 &phba->sli4_hba.sli_intf); 4071 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4072 (!phba->sli4_hba.pc_sli4_params.pls && 4073 (sli_family == LPFC_SLI_INTF_FAMILY_G6 || 4074 if_type == LPFC_SLI_INTF_IF_TYPE_6))) && 4075 val == 4) { 4076 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4077 "3114 Loop mode not supported\n"); 4078 return -EINVAL; 4079 } 4080 phba->cfg_topology = val; 4081 if (nolip) 4082 return strlen(buf); 4083 4084 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4085 "3054 lpfc_topology changed from %d to %d\n", 4086 prev_val, val); 4087 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4088 phba->fc_topology_changed = 1; 4089 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4090 if (err) { 4091 phba->cfg_topology = prev_val; 4092 return -EINVAL; 4093 } else 4094 return strlen(buf); 4095 } 4096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4097 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4098 "allowed range is [0, 6]\n", 4099 phba->brd_no, val); 4100 return -EINVAL; 4101 } 4102 4103 lpfc_param_show(topology) 4104 static DEVICE_ATTR_RW(lpfc_topology); 4105 4106 /** 4107 * lpfc_static_vport_show: Read callback function for 4108 * lpfc_static_vport sysfs file. 4109 * @dev: Pointer to class device object. 4110 * @attr: device attribute structure. 4111 * @buf: Data buffer. 4112 * 4113 * This function is the read call back function for 4114 * lpfc_static_vport sysfs file. The lpfc_static_vport 4115 * sysfs file report the mageability of the vport. 4116 **/ 4117 static ssize_t 4118 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4119 char *buf) 4120 { 4121 struct Scsi_Host *shost = class_to_shost(dev); 4122 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4123 if (vport->vport_flag & STATIC_VPORT) 4124 sprintf(buf, "1\n"); 4125 else 4126 sprintf(buf, "0\n"); 4127 4128 return strlen(buf); 4129 } 4130 4131 /* 4132 * Sysfs attribute to control the statistical data collection. 4133 */ 4134 static DEVICE_ATTR_RO(lpfc_static_vport); 4135 4136 /** 4137 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4138 * @dev: Pointer to class device. 4139 * @attr: Unused. 4140 * @buf: Data buffer. 4141 * @count: Size of the data buffer. 4142 * 4143 * This function get called when a user write to the lpfc_stat_data_ctrl 4144 * sysfs file. This function parse the command written to the sysfs file 4145 * and take appropriate action. These commands are used for controlling 4146 * driver statistical data collection. 4147 * Following are the command this function handles. 4148 * 4149 * setbucket <bucket_type> <base> <step> 4150 * = Set the latency buckets. 4151 * destroybucket = destroy all the buckets. 4152 * start = start data collection 4153 * stop = stop data collection 4154 * reset = reset the collected data 4155 **/ 4156 static ssize_t 4157 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4158 const char *buf, size_t count) 4159 { 4160 struct Scsi_Host *shost = class_to_shost(dev); 4161 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4162 struct lpfc_hba *phba = vport->phba; 4163 #define LPFC_MAX_DATA_CTRL_LEN 1024 4164 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4165 unsigned long i; 4166 char *str_ptr, *token; 4167 struct lpfc_vport **vports; 4168 struct Scsi_Host *v_shost; 4169 char *bucket_type_str, *base_str, *step_str; 4170 unsigned long base, step, bucket_type; 4171 4172 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4173 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4174 return -EINVAL; 4175 4176 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4177 str_ptr = &bucket_data[0]; 4178 /* Ignore this token - this is command token */ 4179 token = strsep(&str_ptr, "\t "); 4180 if (!token) 4181 return -EINVAL; 4182 4183 bucket_type_str = strsep(&str_ptr, "\t "); 4184 if (!bucket_type_str) 4185 return -EINVAL; 4186 4187 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4188 bucket_type = LPFC_LINEAR_BUCKET; 4189 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4190 bucket_type = LPFC_POWER2_BUCKET; 4191 else 4192 return -EINVAL; 4193 4194 base_str = strsep(&str_ptr, "\t "); 4195 if (!base_str) 4196 return -EINVAL; 4197 base = simple_strtoul(base_str, NULL, 0); 4198 4199 step_str = strsep(&str_ptr, "\t "); 4200 if (!step_str) 4201 return -EINVAL; 4202 step = simple_strtoul(step_str, NULL, 0); 4203 if (!step) 4204 return -EINVAL; 4205 4206 /* Block the data collection for every vport */ 4207 vports = lpfc_create_vport_work_array(phba); 4208 if (vports == NULL) 4209 return -ENOMEM; 4210 4211 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4212 v_shost = lpfc_shost_from_vport(vports[i]); 4213 spin_lock_irq(v_shost->host_lock); 4214 /* Block and reset data collection */ 4215 vports[i]->stat_data_blocked = 1; 4216 if (vports[i]->stat_data_enabled) 4217 lpfc_vport_reset_stat_data(vports[i]); 4218 spin_unlock_irq(v_shost->host_lock); 4219 } 4220 4221 /* Set the bucket attributes */ 4222 phba->bucket_type = bucket_type; 4223 phba->bucket_base = base; 4224 phba->bucket_step = step; 4225 4226 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4227 v_shost = lpfc_shost_from_vport(vports[i]); 4228 4229 /* Unblock data collection */ 4230 spin_lock_irq(v_shost->host_lock); 4231 vports[i]->stat_data_blocked = 0; 4232 spin_unlock_irq(v_shost->host_lock); 4233 } 4234 lpfc_destroy_vport_work_array(phba, vports); 4235 return strlen(buf); 4236 } 4237 4238 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4239 vports = lpfc_create_vport_work_array(phba); 4240 if (vports == NULL) 4241 return -ENOMEM; 4242 4243 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4244 v_shost = lpfc_shost_from_vport(vports[i]); 4245 spin_lock_irq(shost->host_lock); 4246 vports[i]->stat_data_blocked = 1; 4247 lpfc_free_bucket(vport); 4248 vport->stat_data_enabled = 0; 4249 vports[i]->stat_data_blocked = 0; 4250 spin_unlock_irq(shost->host_lock); 4251 } 4252 lpfc_destroy_vport_work_array(phba, vports); 4253 phba->bucket_type = LPFC_NO_BUCKET; 4254 phba->bucket_base = 0; 4255 phba->bucket_step = 0; 4256 return strlen(buf); 4257 } 4258 4259 if (!strncmp(buf, "start", strlen("start"))) { 4260 /* If no buckets configured return error */ 4261 if (phba->bucket_type == LPFC_NO_BUCKET) 4262 return -EINVAL; 4263 spin_lock_irq(shost->host_lock); 4264 if (vport->stat_data_enabled) { 4265 spin_unlock_irq(shost->host_lock); 4266 return strlen(buf); 4267 } 4268 lpfc_alloc_bucket(vport); 4269 vport->stat_data_enabled = 1; 4270 spin_unlock_irq(shost->host_lock); 4271 return strlen(buf); 4272 } 4273 4274 if (!strncmp(buf, "stop", strlen("stop"))) { 4275 spin_lock_irq(shost->host_lock); 4276 if (vport->stat_data_enabled == 0) { 4277 spin_unlock_irq(shost->host_lock); 4278 return strlen(buf); 4279 } 4280 lpfc_free_bucket(vport); 4281 vport->stat_data_enabled = 0; 4282 spin_unlock_irq(shost->host_lock); 4283 return strlen(buf); 4284 } 4285 4286 if (!strncmp(buf, "reset", strlen("reset"))) { 4287 if ((phba->bucket_type == LPFC_NO_BUCKET) 4288 || !vport->stat_data_enabled) 4289 return strlen(buf); 4290 spin_lock_irq(shost->host_lock); 4291 vport->stat_data_blocked = 1; 4292 lpfc_vport_reset_stat_data(vport); 4293 vport->stat_data_blocked = 0; 4294 spin_unlock_irq(shost->host_lock); 4295 return strlen(buf); 4296 } 4297 return -EINVAL; 4298 } 4299 4300 4301 /** 4302 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4303 * @dev: Pointer to class device. 4304 * @attr: Unused. 4305 * @buf: Data buffer. 4306 * 4307 * This function is the read call back function for 4308 * lpfc_stat_data_ctrl sysfs file. This function report the 4309 * current statistical data collection state. 4310 **/ 4311 static ssize_t 4312 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4313 char *buf) 4314 { 4315 struct Scsi_Host *shost = class_to_shost(dev); 4316 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4317 struct lpfc_hba *phba = vport->phba; 4318 int index = 0; 4319 int i; 4320 char *bucket_type; 4321 unsigned long bucket_value; 4322 4323 switch (phba->bucket_type) { 4324 case LPFC_LINEAR_BUCKET: 4325 bucket_type = "linear"; 4326 break; 4327 case LPFC_POWER2_BUCKET: 4328 bucket_type = "power2"; 4329 break; 4330 default: 4331 bucket_type = "No Bucket"; 4332 break; 4333 } 4334 4335 sprintf(&buf[index], "Statistical Data enabled :%d, " 4336 "blocked :%d, Bucket type :%s, Bucket base :%d," 4337 " Bucket step :%d\nLatency Ranges :", 4338 vport->stat_data_enabled, vport->stat_data_blocked, 4339 bucket_type, phba->bucket_base, phba->bucket_step); 4340 index = strlen(buf); 4341 if (phba->bucket_type != LPFC_NO_BUCKET) { 4342 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4343 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4344 bucket_value = phba->bucket_base + 4345 phba->bucket_step * i; 4346 else 4347 bucket_value = phba->bucket_base + 4348 (1 << i) * phba->bucket_step; 4349 4350 if (index + 10 > PAGE_SIZE) 4351 break; 4352 sprintf(&buf[index], "%08ld ", bucket_value); 4353 index = strlen(buf); 4354 } 4355 } 4356 sprintf(&buf[index], "\n"); 4357 return strlen(buf); 4358 } 4359 4360 /* 4361 * Sysfs attribute to control the statistical data collection. 4362 */ 4363 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4364 4365 /* 4366 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4367 */ 4368 4369 /* 4370 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4371 * for each target. 4372 */ 4373 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4374 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4375 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4376 4377 4378 /** 4379 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4380 * @filp: sysfs file 4381 * @kobj: Pointer to the kernel object 4382 * @bin_attr: Attribute object 4383 * @buf: Buffer pointer 4384 * @off: File offset 4385 * @count: Buffer size 4386 * 4387 * This function is the read call back function for lpfc_drvr_stat_data 4388 * sysfs file. This function export the statistical data to user 4389 * applications. 4390 **/ 4391 static ssize_t 4392 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4393 struct bin_attribute *bin_attr, 4394 char *buf, loff_t off, size_t count) 4395 { 4396 struct device *dev = container_of(kobj, struct device, 4397 kobj); 4398 struct Scsi_Host *shost = class_to_shost(dev); 4399 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4400 struct lpfc_hba *phba = vport->phba; 4401 int i = 0, index = 0; 4402 unsigned long nport_index; 4403 struct lpfc_nodelist *ndlp = NULL; 4404 nport_index = (unsigned long)off / 4405 MAX_STAT_DATA_SIZE_PER_TARGET; 4406 4407 if (!vport->stat_data_enabled || vport->stat_data_blocked 4408 || (phba->bucket_type == LPFC_NO_BUCKET)) 4409 return 0; 4410 4411 spin_lock_irq(shost->host_lock); 4412 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4413 if (!ndlp->lat_data) 4414 continue; 4415 4416 if (nport_index > 0) { 4417 nport_index--; 4418 continue; 4419 } 4420 4421 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4422 > count) 4423 break; 4424 4425 if (!ndlp->lat_data) 4426 continue; 4427 4428 /* Print the WWN */ 4429 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4430 ndlp->nlp_portname.u.wwn[0], 4431 ndlp->nlp_portname.u.wwn[1], 4432 ndlp->nlp_portname.u.wwn[2], 4433 ndlp->nlp_portname.u.wwn[3], 4434 ndlp->nlp_portname.u.wwn[4], 4435 ndlp->nlp_portname.u.wwn[5], 4436 ndlp->nlp_portname.u.wwn[6], 4437 ndlp->nlp_portname.u.wwn[7]); 4438 4439 index = strlen(buf); 4440 4441 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4442 sprintf(&buf[index], "%010u,", 4443 ndlp->lat_data[i].cmd_count); 4444 index = strlen(buf); 4445 } 4446 sprintf(&buf[index], "\n"); 4447 index = strlen(buf); 4448 } 4449 spin_unlock_irq(shost->host_lock); 4450 return index; 4451 } 4452 4453 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4454 .attr = { 4455 .name = "lpfc_drvr_stat_data", 4456 .mode = S_IRUSR, 4457 }, 4458 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4459 .read = sysfs_drvr_stat_data_read, 4460 .write = NULL, 4461 }; 4462 4463 /* 4464 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4465 # connection. 4466 # Value range is [0,16]. Default value is 0. 4467 */ 4468 /** 4469 * lpfc_link_speed_store - Set the adapters link speed 4470 * @dev: Pointer to class device. 4471 * @attr: Unused. 4472 * @buf: Data buffer. 4473 * @count: Size of the data buffer. 4474 * 4475 * Description: 4476 * If val is in a valid range then set the adapter's link speed field and 4477 * issue a lip; if the lip fails reset the link speed to the old value. 4478 * 4479 * Notes: 4480 * If the value is not in range log a kernel error message and return an error. 4481 * 4482 * Returns: 4483 * zero if val is in range and lip okay. 4484 * non-zero return value from lpfc_issue_lip() 4485 * -EINVAL val out of range 4486 **/ 4487 static ssize_t 4488 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4489 const char *buf, size_t count) 4490 { 4491 struct Scsi_Host *shost = class_to_shost(dev); 4492 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4493 struct lpfc_hba *phba = vport->phba; 4494 int val = LPFC_USER_LINK_SPEED_AUTO; 4495 int nolip = 0; 4496 const char *val_buf = buf; 4497 int err; 4498 uint32_t prev_val, if_type; 4499 4500 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4501 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4502 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4503 return -EPERM; 4504 4505 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4506 nolip = 1; 4507 val_buf = &buf[strlen("nolip ")]; 4508 } 4509 4510 if (!isdigit(val_buf[0])) 4511 return -EINVAL; 4512 if (sscanf(val_buf, "%i", &val) != 1) 4513 return -EINVAL; 4514 4515 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4516 "3055 lpfc_link_speed changed from %d to %d %s\n", 4517 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4518 4519 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4520 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4521 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4522 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4523 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4524 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4525 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4526 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4528 "2879 lpfc_link_speed attribute cannot be set " 4529 "to %d. Speed is not supported by this port.\n", 4530 val); 4531 return -EINVAL; 4532 } 4533 if (val >= LPFC_USER_LINK_SPEED_16G && 4534 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4536 "3112 lpfc_link_speed attribute cannot be set " 4537 "to %d. Speed is not supported in loop mode.\n", 4538 val); 4539 return -EINVAL; 4540 } 4541 4542 switch (val) { 4543 case LPFC_USER_LINK_SPEED_AUTO: 4544 case LPFC_USER_LINK_SPEED_1G: 4545 case LPFC_USER_LINK_SPEED_2G: 4546 case LPFC_USER_LINK_SPEED_4G: 4547 case LPFC_USER_LINK_SPEED_8G: 4548 case LPFC_USER_LINK_SPEED_16G: 4549 case LPFC_USER_LINK_SPEED_32G: 4550 case LPFC_USER_LINK_SPEED_64G: 4551 prev_val = phba->cfg_link_speed; 4552 phba->cfg_link_speed = val; 4553 if (nolip) 4554 return strlen(buf); 4555 4556 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4557 if (err) { 4558 phba->cfg_link_speed = prev_val; 4559 return -EINVAL; 4560 } 4561 return strlen(buf); 4562 default: 4563 break; 4564 } 4565 4566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4567 "0469 lpfc_link_speed attribute cannot be set to %d, " 4568 "allowed values are [%s]\n", 4569 val, LPFC_LINK_SPEED_STRING); 4570 return -EINVAL; 4571 4572 } 4573 4574 static int lpfc_link_speed = 0; 4575 module_param(lpfc_link_speed, int, S_IRUGO); 4576 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4577 lpfc_param_show(link_speed) 4578 4579 /** 4580 * lpfc_link_speed_init - Set the adapters link speed 4581 * @phba: lpfc_hba pointer. 4582 * @val: link speed value. 4583 * 4584 * Description: 4585 * If val is in a valid range then set the adapter's link speed field. 4586 * 4587 * Notes: 4588 * If the value is not in range log a kernel error message, clear the link 4589 * speed and return an error. 4590 * 4591 * Returns: 4592 * zero if val saved. 4593 * -EINVAL val out of range 4594 **/ 4595 static int 4596 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4597 { 4598 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4600 "3111 lpfc_link_speed of %d cannot " 4601 "support loop mode, setting topology to default.\n", 4602 val); 4603 phba->cfg_topology = 0; 4604 } 4605 4606 switch (val) { 4607 case LPFC_USER_LINK_SPEED_AUTO: 4608 case LPFC_USER_LINK_SPEED_1G: 4609 case LPFC_USER_LINK_SPEED_2G: 4610 case LPFC_USER_LINK_SPEED_4G: 4611 case LPFC_USER_LINK_SPEED_8G: 4612 case LPFC_USER_LINK_SPEED_16G: 4613 case LPFC_USER_LINK_SPEED_32G: 4614 case LPFC_USER_LINK_SPEED_64G: 4615 phba->cfg_link_speed = val; 4616 return 0; 4617 default: 4618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4619 "0405 lpfc_link_speed attribute cannot " 4620 "be set to %d, allowed values are " 4621 "["LPFC_LINK_SPEED_STRING"]\n", val); 4622 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4623 return -EINVAL; 4624 } 4625 } 4626 4627 static DEVICE_ATTR_RW(lpfc_link_speed); 4628 4629 /* 4630 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4631 # 0 = aer disabled or not supported 4632 # 1 = aer supported and enabled (default) 4633 # Value range is [0,1]. Default value is 1. 4634 */ 4635 LPFC_ATTR(aer_support, 1, 0, 1, 4636 "Enable PCIe device AER support"); 4637 lpfc_param_show(aer_support) 4638 4639 /** 4640 * lpfc_aer_support_store - Set the adapter for aer support 4641 * 4642 * @dev: class device that is converted into a Scsi_host. 4643 * @attr: device attribute, not used. 4644 * @buf: containing enable or disable aer flag. 4645 * @count: unused variable. 4646 * 4647 * Description: 4648 * If the val is 1 and currently the device's AER capability was not 4649 * enabled, invoke the kernel's enable AER helper routine, trying to 4650 * enable the device's AER capability. If the helper routine enabling 4651 * AER returns success, update the device's cfg_aer_support flag to 4652 * indicate AER is supported by the device; otherwise, if the device 4653 * AER capability is already enabled to support AER, then do nothing. 4654 * 4655 * If the val is 0 and currently the device's AER support was enabled, 4656 * invoke the kernel's disable AER helper routine. After that, update 4657 * the device's cfg_aer_support flag to indicate AER is not supported 4658 * by the device; otherwise, if the device AER capability is already 4659 * disabled from supporting AER, then do nothing. 4660 * 4661 * Returns: 4662 * length of the buf on success if val is in range the intended mode 4663 * is supported. 4664 * -EINVAL if val out of range or intended mode is not supported. 4665 **/ 4666 static ssize_t 4667 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4668 const char *buf, size_t count) 4669 { 4670 struct Scsi_Host *shost = class_to_shost(dev); 4671 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4672 struct lpfc_hba *phba = vport->phba; 4673 int val = 0, rc = -EINVAL; 4674 4675 if (!isdigit(buf[0])) 4676 return -EINVAL; 4677 if (sscanf(buf, "%i", &val) != 1) 4678 return -EINVAL; 4679 4680 switch (val) { 4681 case 0: 4682 if (phba->hba_flag & HBA_AER_ENABLED) { 4683 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4684 if (!rc) { 4685 spin_lock_irq(&phba->hbalock); 4686 phba->hba_flag &= ~HBA_AER_ENABLED; 4687 spin_unlock_irq(&phba->hbalock); 4688 phba->cfg_aer_support = 0; 4689 rc = strlen(buf); 4690 } else 4691 rc = -EPERM; 4692 } else { 4693 phba->cfg_aer_support = 0; 4694 rc = strlen(buf); 4695 } 4696 break; 4697 case 1: 4698 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4699 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4700 if (!rc) { 4701 spin_lock_irq(&phba->hbalock); 4702 phba->hba_flag |= HBA_AER_ENABLED; 4703 spin_unlock_irq(&phba->hbalock); 4704 phba->cfg_aer_support = 1; 4705 rc = strlen(buf); 4706 } else 4707 rc = -EPERM; 4708 } else { 4709 phba->cfg_aer_support = 1; 4710 rc = strlen(buf); 4711 } 4712 break; 4713 default: 4714 rc = -EINVAL; 4715 break; 4716 } 4717 return rc; 4718 } 4719 4720 static DEVICE_ATTR_RW(lpfc_aer_support); 4721 4722 /** 4723 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4724 * @dev: class device that is converted into a Scsi_host. 4725 * @attr: device attribute, not used. 4726 * @buf: containing flag 1 for aer cleanup state. 4727 * @count: unused variable. 4728 * 4729 * Description: 4730 * If the @buf contains 1 and the device currently has the AER support 4731 * enabled, then invokes the kernel AER helper routine 4732 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4733 * error status register. 4734 * 4735 * Notes: 4736 * 4737 * Returns: 4738 * -EINVAL if the buf does not contain the 1 or the device is not currently 4739 * enabled with the AER support. 4740 **/ 4741 static ssize_t 4742 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4743 const char *buf, size_t count) 4744 { 4745 struct Scsi_Host *shost = class_to_shost(dev); 4746 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4747 struct lpfc_hba *phba = vport->phba; 4748 int val, rc = -1; 4749 4750 if (!isdigit(buf[0])) 4751 return -EINVAL; 4752 if (sscanf(buf, "%i", &val) != 1) 4753 return -EINVAL; 4754 if (val != 1) 4755 return -EINVAL; 4756 4757 if (phba->hba_flag & HBA_AER_ENABLED) 4758 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4759 4760 if (rc == 0) 4761 return strlen(buf); 4762 else 4763 return -EPERM; 4764 } 4765 4766 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4767 lpfc_aer_cleanup_state); 4768 4769 /** 4770 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4771 * 4772 * @dev: class device that is converted into a Scsi_host. 4773 * @attr: device attribute, not used. 4774 * @buf: containing the string the number of vfs to be enabled. 4775 * @count: unused variable. 4776 * 4777 * Description: 4778 * When this api is called either through user sysfs, the driver shall 4779 * try to enable or disable SR-IOV virtual functions according to the 4780 * following: 4781 * 4782 * If zero virtual function has been enabled to the physical function, 4783 * the driver shall invoke the pci enable virtual function api trying 4784 * to enable the virtual functions. If the nr_vfn provided is greater 4785 * than the maximum supported, the maximum virtual function number will 4786 * be used for invoking the api; otherwise, the nr_vfn provided shall 4787 * be used for invoking the api. If the api call returned success, the 4788 * actual number of virtual functions enabled will be set to the driver 4789 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4790 * cfg_sriov_nr_virtfn remains zero. 4791 * 4792 * If none-zero virtual functions have already been enabled to the 4793 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4794 * -EINVAL will be returned and the driver does nothing; 4795 * 4796 * If the nr_vfn provided is zero and none-zero virtual functions have 4797 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4798 * disabling virtual function api shall be invoded to disable all the 4799 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4800 * zero. Otherwise, if zero virtual function has been enabled, do 4801 * nothing. 4802 * 4803 * Returns: 4804 * length of the buf on success if val is in range the intended mode 4805 * is supported. 4806 * -EINVAL if val out of range or intended mode is not supported. 4807 **/ 4808 static ssize_t 4809 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4810 const char *buf, size_t count) 4811 { 4812 struct Scsi_Host *shost = class_to_shost(dev); 4813 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4814 struct lpfc_hba *phba = vport->phba; 4815 struct pci_dev *pdev = phba->pcidev; 4816 int val = 0, rc = -EINVAL; 4817 4818 /* Sanity check on user data */ 4819 if (!isdigit(buf[0])) 4820 return -EINVAL; 4821 if (sscanf(buf, "%i", &val) != 1) 4822 return -EINVAL; 4823 if (val < 0) 4824 return -EINVAL; 4825 4826 /* Request disabling virtual functions */ 4827 if (val == 0) { 4828 if (phba->cfg_sriov_nr_virtfn > 0) { 4829 pci_disable_sriov(pdev); 4830 phba->cfg_sriov_nr_virtfn = 0; 4831 } 4832 return strlen(buf); 4833 } 4834 4835 /* Request enabling virtual functions */ 4836 if (phba->cfg_sriov_nr_virtfn > 0) { 4837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4838 "3018 There are %d virtual functions " 4839 "enabled on physical function.\n", 4840 phba->cfg_sriov_nr_virtfn); 4841 return -EEXIST; 4842 } 4843 4844 if (val <= LPFC_MAX_VFN_PER_PFN) 4845 phba->cfg_sriov_nr_virtfn = val; 4846 else { 4847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4848 "3019 Enabling %d virtual functions is not " 4849 "allowed.\n", val); 4850 return -EINVAL; 4851 } 4852 4853 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4854 if (rc) { 4855 phba->cfg_sriov_nr_virtfn = 0; 4856 rc = -EPERM; 4857 } else 4858 rc = strlen(buf); 4859 4860 return rc; 4861 } 4862 4863 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4864 "Enable PCIe device SR-IOV virtual fn"); 4865 4866 lpfc_param_show(sriov_nr_virtfn) 4867 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4868 4869 /** 4870 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4871 * 4872 * @dev: class device that is converted into a Scsi_host. 4873 * @attr: device attribute, not used. 4874 * @buf: containing the string the number of vfs to be enabled. 4875 * @count: unused variable. 4876 * 4877 * Description: 4878 * 4879 * Returns: 4880 * length of the buf on success if val is in range the intended mode 4881 * is supported. 4882 * -EINVAL if val out of range or intended mode is not supported. 4883 **/ 4884 static ssize_t 4885 lpfc_request_firmware_upgrade_store(struct device *dev, 4886 struct device_attribute *attr, 4887 const char *buf, size_t count) 4888 { 4889 struct Scsi_Host *shost = class_to_shost(dev); 4890 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4891 struct lpfc_hba *phba = vport->phba; 4892 int val = 0, rc; 4893 4894 /* Sanity check on user data */ 4895 if (!isdigit(buf[0])) 4896 return -EINVAL; 4897 if (sscanf(buf, "%i", &val) != 1) 4898 return -EINVAL; 4899 if (val != 1) 4900 return -EINVAL; 4901 4902 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4903 if (rc) 4904 rc = -EPERM; 4905 else 4906 rc = strlen(buf); 4907 return rc; 4908 } 4909 4910 static int lpfc_req_fw_upgrade; 4911 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4912 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4913 lpfc_param_show(request_firmware_upgrade) 4914 4915 /** 4916 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4917 * @phba: lpfc_hba pointer. 4918 * @val: 0 or 1. 4919 * 4920 * Description: 4921 * Set the initial Linux generic firmware upgrade enable or disable flag. 4922 * 4923 * Returns: 4924 * zero if val saved. 4925 * -EINVAL val out of range 4926 **/ 4927 static int 4928 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4929 { 4930 if (val >= 0 && val <= 1) { 4931 phba->cfg_request_firmware_upgrade = val; 4932 return 0; 4933 } 4934 return -EINVAL; 4935 } 4936 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4937 lpfc_request_firmware_upgrade_show, 4938 lpfc_request_firmware_upgrade_store); 4939 4940 /** 4941 * lpfc_force_rscn_store 4942 * 4943 * @dev: class device that is converted into a Scsi_host. 4944 * @attr: device attribute, not used. 4945 * @buf: unused string 4946 * @count: unused variable. 4947 * 4948 * Description: 4949 * Force the switch to send a RSCN to all other NPorts in our zone 4950 * If we are direct connect pt2pt, build the RSCN command ourself 4951 * and send to the other NPort. Not supported for private loop. 4952 * 4953 * Returns: 4954 * 0 - on success 4955 * -EIO - if command is not sent 4956 **/ 4957 static ssize_t 4958 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4959 const char *buf, size_t count) 4960 { 4961 struct Scsi_Host *shost = class_to_shost(dev); 4962 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4963 int i; 4964 4965 i = lpfc_issue_els_rscn(vport, 0); 4966 if (i) 4967 return -EIO; 4968 return strlen(buf); 4969 } 4970 4971 /* 4972 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4973 * connected to the HBA. 4974 * 4975 * Value range is any ascii value 4976 */ 4977 static int lpfc_force_rscn; 4978 module_param(lpfc_force_rscn, int, 0644); 4979 MODULE_PARM_DESC(lpfc_force_rscn, 4980 "Force an RSCN to be sent to all remote NPorts"); 4981 lpfc_param_show(force_rscn) 4982 4983 /** 4984 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4985 * @phba: lpfc_hba pointer. 4986 * @val: unused value. 4987 * 4988 * Returns: 4989 * zero if val saved. 4990 **/ 4991 static int 4992 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4993 { 4994 return 0; 4995 } 4996 static DEVICE_ATTR_RW(lpfc_force_rscn); 4997 4998 /** 4999 * lpfc_fcp_imax_store 5000 * 5001 * @dev: class device that is converted into a Scsi_host. 5002 * @attr: device attribute, not used. 5003 * @buf: string with the number of fast-path FCP interrupts per second. 5004 * @count: unused variable. 5005 * 5006 * Description: 5007 * If val is in a valid range [636,651042], then set the adapter's 5008 * maximum number of fast-path FCP interrupts per second. 5009 * 5010 * Returns: 5011 * length of the buf on success if val is in range the intended mode 5012 * is supported. 5013 * -EINVAL if val out of range or intended mode is not supported. 5014 **/ 5015 static ssize_t 5016 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5017 const char *buf, size_t count) 5018 { 5019 struct Scsi_Host *shost = class_to_shost(dev); 5020 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5021 struct lpfc_hba *phba = vport->phba; 5022 struct lpfc_eq_intr_info *eqi; 5023 uint32_t usdelay; 5024 int val = 0, i; 5025 5026 /* fcp_imax is only valid for SLI4 */ 5027 if (phba->sli_rev != LPFC_SLI_REV4) 5028 return -EINVAL; 5029 5030 /* Sanity check on user data */ 5031 if (!isdigit(buf[0])) 5032 return -EINVAL; 5033 if (sscanf(buf, "%i", &val) != 1) 5034 return -EINVAL; 5035 5036 /* 5037 * Value range for the HBA is [5000,5000000] 5038 * The value for each EQ depends on how many EQs are configured. 5039 * Allow value == 0 5040 */ 5041 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5042 return -EINVAL; 5043 5044 phba->cfg_auto_imax = (val) ? 0 : 1; 5045 if (phba->cfg_fcp_imax && !val) { 5046 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5047 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5048 5049 for_each_present_cpu(i) { 5050 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5051 eqi->icnt = 0; 5052 } 5053 } 5054 5055 phba->cfg_fcp_imax = (uint32_t)val; 5056 5057 if (phba->cfg_fcp_imax) 5058 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5059 else 5060 usdelay = 0; 5061 5062 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5063 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5064 usdelay); 5065 5066 return strlen(buf); 5067 } 5068 5069 /* 5070 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5071 # for the HBA. 5072 # 5073 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5074 */ 5075 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5076 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5077 MODULE_PARM_DESC(lpfc_fcp_imax, 5078 "Set the maximum number of FCP interrupts per second per HBA"); 5079 lpfc_param_show(fcp_imax) 5080 5081 /** 5082 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5083 * @phba: lpfc_hba pointer. 5084 * @val: link speed value. 5085 * 5086 * Description: 5087 * If val is in a valid range [636,651042], then initialize the adapter's 5088 * maximum number of fast-path FCP interrupts per second. 5089 * 5090 * Returns: 5091 * zero if val saved. 5092 * -EINVAL val out of range 5093 **/ 5094 static int 5095 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5096 { 5097 if (phba->sli_rev != LPFC_SLI_REV4) { 5098 phba->cfg_fcp_imax = 0; 5099 return 0; 5100 } 5101 5102 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5103 (val == 0)) { 5104 phba->cfg_fcp_imax = val; 5105 return 0; 5106 } 5107 5108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5109 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5110 val); 5111 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5112 5113 return 0; 5114 } 5115 5116 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5117 5118 /** 5119 * lpfc_cq_max_proc_limit_store 5120 * 5121 * @dev: class device that is converted into a Scsi_host. 5122 * @attr: device attribute, not used. 5123 * @buf: string with the cq max processing limit of cqes 5124 * @count: unused variable. 5125 * 5126 * Description: 5127 * If val is in a valid range, then set value on each cq 5128 * 5129 * Returns: 5130 * The length of the buf: if successful 5131 * -ERANGE: if val is not in the valid range 5132 * -EINVAL: if bad value format or intended mode is not supported. 5133 **/ 5134 static ssize_t 5135 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5136 const char *buf, size_t count) 5137 { 5138 struct Scsi_Host *shost = class_to_shost(dev); 5139 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5140 struct lpfc_hba *phba = vport->phba; 5141 struct lpfc_queue *eq, *cq; 5142 unsigned long val; 5143 int i; 5144 5145 /* cq_max_proc_limit is only valid for SLI4 */ 5146 if (phba->sli_rev != LPFC_SLI_REV4) 5147 return -EINVAL; 5148 5149 /* Sanity check on user data */ 5150 if (!isdigit(buf[0])) 5151 return -EINVAL; 5152 if (kstrtoul(buf, 0, &val)) 5153 return -EINVAL; 5154 5155 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5156 return -ERANGE; 5157 5158 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5159 5160 /* set the values on the cq's */ 5161 for (i = 0; i < phba->cfg_irq_chann; i++) { 5162 /* Get the EQ corresponding to the IRQ vector */ 5163 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5164 if (!eq) 5165 continue; 5166 5167 list_for_each_entry(cq, &eq->child_list, list) 5168 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5169 cq->entry_count); 5170 } 5171 5172 return strlen(buf); 5173 } 5174 5175 /* 5176 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5177 * itteration of CQ processing. 5178 */ 5179 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5180 module_param(lpfc_cq_max_proc_limit, int, 0644); 5181 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5182 "Set the maximum number CQEs processed in an iteration of " 5183 "CQ processing"); 5184 lpfc_param_show(cq_max_proc_limit) 5185 5186 /* 5187 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5188 * single handler call which should request a polled completion rather 5189 * than re-enabling interrupts. 5190 */ 5191 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5192 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5193 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5194 "CQE Processing Threshold to enable Polling"); 5195 5196 /** 5197 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5198 * @phba: lpfc_hba pointer. 5199 * @val: entry limit 5200 * 5201 * Description: 5202 * If val is in a valid range, then initialize the adapter's maximum 5203 * value. 5204 * 5205 * Returns: 5206 * Always returns 0 for success, even if value not always set to 5207 * requested value. If value out of range or not supported, will fall 5208 * back to default. 5209 **/ 5210 static int 5211 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5212 { 5213 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5214 5215 if (phba->sli_rev != LPFC_SLI_REV4) 5216 return 0; 5217 5218 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5219 phba->cfg_cq_max_proc_limit = val; 5220 return 0; 5221 } 5222 5223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5224 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 5225 "default\n", 5226 phba->cfg_cq_max_proc_limit); 5227 5228 return 0; 5229 } 5230 5231 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5232 5233 /** 5234 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5235 * @dev: class converted to a Scsi_host structure. 5236 * @attr: device attribute, not used. 5237 * @buf: on return contains text describing the state of the link. 5238 * 5239 * Returns: size of formatted string. 5240 **/ 5241 static ssize_t 5242 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5243 char *buf) 5244 { 5245 struct Scsi_Host *shost = class_to_shost(dev); 5246 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5247 struct lpfc_hba *phba = vport->phba; 5248 struct lpfc_vector_map_info *cpup; 5249 int len = 0; 5250 5251 if ((phba->sli_rev != LPFC_SLI_REV4) || 5252 (phba->intr_type != MSIX)) 5253 return len; 5254 5255 switch (phba->cfg_fcp_cpu_map) { 5256 case 0: 5257 len += scnprintf(buf + len, PAGE_SIZE-len, 5258 "fcp_cpu_map: No mapping (%d)\n", 5259 phba->cfg_fcp_cpu_map); 5260 return len; 5261 case 1: 5262 len += scnprintf(buf + len, PAGE_SIZE-len, 5263 "fcp_cpu_map: HBA centric mapping (%d): " 5264 "%d of %d CPUs online from %d possible CPUs\n", 5265 phba->cfg_fcp_cpu_map, num_online_cpus(), 5266 num_present_cpus(), 5267 phba->sli4_hba.num_possible_cpu); 5268 break; 5269 } 5270 5271 while (phba->sli4_hba.curr_disp_cpu < 5272 phba->sli4_hba.num_possible_cpu) { 5273 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5274 5275 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5276 len += scnprintf(buf + len, PAGE_SIZE - len, 5277 "CPU %02d not present\n", 5278 phba->sli4_hba.curr_disp_cpu); 5279 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5280 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5281 len += scnprintf( 5282 buf + len, PAGE_SIZE - len, 5283 "CPU %02d hdwq None " 5284 "physid %d coreid %d ht %d ua %d\n", 5285 phba->sli4_hba.curr_disp_cpu, 5286 cpup->phys_id, cpup->core_id, 5287 (cpup->flag & LPFC_CPU_MAP_HYPER), 5288 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5289 else 5290 len += scnprintf( 5291 buf + len, PAGE_SIZE - len, 5292 "CPU %02d EQ None hdwq %04d " 5293 "physid %d coreid %d ht %d ua %d\n", 5294 phba->sli4_hba.curr_disp_cpu, 5295 cpup->hdwq, cpup->phys_id, 5296 cpup->core_id, 5297 (cpup->flag & LPFC_CPU_MAP_HYPER), 5298 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5299 } else { 5300 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5301 len += scnprintf( 5302 buf + len, PAGE_SIZE - len, 5303 "CPU %02d hdwq None " 5304 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5305 phba->sli4_hba.curr_disp_cpu, 5306 cpup->phys_id, 5307 cpup->core_id, 5308 (cpup->flag & LPFC_CPU_MAP_HYPER), 5309 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5310 lpfc_get_irq(cpup->eq)); 5311 else 5312 len += scnprintf( 5313 buf + len, PAGE_SIZE - len, 5314 "CPU %02d EQ %04d hdwq %04d " 5315 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5316 phba->sli4_hba.curr_disp_cpu, 5317 cpup->eq, cpup->hdwq, cpup->phys_id, 5318 cpup->core_id, 5319 (cpup->flag & LPFC_CPU_MAP_HYPER), 5320 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5321 lpfc_get_irq(cpup->eq)); 5322 } 5323 5324 phba->sli4_hba.curr_disp_cpu++; 5325 5326 /* display max number of CPUs keeping some margin */ 5327 if (phba->sli4_hba.curr_disp_cpu < 5328 phba->sli4_hba.num_possible_cpu && 5329 (len >= (PAGE_SIZE - 64))) { 5330 len += scnprintf(buf + len, 5331 PAGE_SIZE - len, "more...\n"); 5332 break; 5333 } 5334 } 5335 5336 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5337 phba->sli4_hba.curr_disp_cpu = 0; 5338 5339 return len; 5340 } 5341 5342 /** 5343 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5344 * @dev: class device that is converted into a Scsi_host. 5345 * @attr: device attribute, not used. 5346 * @buf: one or more lpfc_polling_flags values. 5347 * @count: not used. 5348 * 5349 * Returns: 5350 * -EINVAL - Not implemented yet. 5351 **/ 5352 static ssize_t 5353 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5354 const char *buf, size_t count) 5355 { 5356 return -EINVAL; 5357 } 5358 5359 /* 5360 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5361 # for the HBA. 5362 # 5363 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5364 # 0 - Do not affinitze IRQ vectors 5365 # 1 - Affintize HBA vectors with respect to each HBA 5366 # (start with CPU0 for each HBA) 5367 # This also defines how Hardware Queues are mapped to specific CPUs. 5368 */ 5369 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5370 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5371 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5372 "Defines how to map CPUs to IRQ vectors per HBA"); 5373 5374 /** 5375 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5376 * @phba: lpfc_hba pointer. 5377 * @val: link speed value. 5378 * 5379 * Description: 5380 * If val is in a valid range [0-2], then affinitze the adapter's 5381 * MSIX vectors. 5382 * 5383 * Returns: 5384 * zero if val saved. 5385 * -EINVAL val out of range 5386 **/ 5387 static int 5388 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5389 { 5390 if (phba->sli_rev != LPFC_SLI_REV4) { 5391 phba->cfg_fcp_cpu_map = 0; 5392 return 0; 5393 } 5394 5395 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5396 phba->cfg_fcp_cpu_map = val; 5397 return 0; 5398 } 5399 5400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5401 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5402 "default\n", val); 5403 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5404 5405 return 0; 5406 } 5407 5408 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5409 5410 /* 5411 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5412 # Value range is [2,3]. Default value is 3. 5413 */ 5414 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5415 "Select Fibre Channel class of service for FCP sequences"); 5416 5417 /* 5418 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5419 # is [0,1]. Default value is 1. 5420 */ 5421 LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, 5422 "Use ADISC on rediscovery to authenticate FCP devices"); 5423 5424 /* 5425 # lpfc_first_burst_size: First burst size to use on the NPorts 5426 # that support first burst. 5427 # Value range is [0,65536]. Default value is 0. 5428 */ 5429 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5430 "First burst size for Targets that support first burst"); 5431 5432 /* 5433 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5434 * When the driver is configured as an NVME target, this value is 5435 * communicated to the NVME initiator in the PRLI response. It is 5436 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5437 * parameters are set and the target is sending the PRLI RSP. 5438 * Parameter supported on physical port only - no NPIV support. 5439 * Value range is [0,65536]. Default value is 0. 5440 */ 5441 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5442 "NVME Target mode first burst size in 512B increments."); 5443 5444 /* 5445 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5446 * For the Initiator (I), enabling this parameter means that an NVMET 5447 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5448 * processed by the initiator for subsequent NVME FCP IO. 5449 * Currently, this feature is not supported on the NVME target 5450 * Value range is [0,1]. Default value is 0 (disabled). 5451 */ 5452 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5453 "Enable First Burst feature for NVME Initiator."); 5454 5455 /* 5456 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5457 # depth. Default value is 0. When the value of this parameter is zero the 5458 # SCSI command completion time is not used for controlling I/O queue depth. When 5459 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5460 # to limit the I/O completion time to the parameter value. 5461 # The value is set in milliseconds. 5462 */ 5463 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5464 "Use command completion time to control queue depth"); 5465 5466 lpfc_vport_param_show(max_scsicmpl_time); 5467 static int 5468 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5469 { 5470 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5471 struct lpfc_nodelist *ndlp, *next_ndlp; 5472 5473 if (val == vport->cfg_max_scsicmpl_time) 5474 return 0; 5475 if ((val < 0) || (val > 60000)) 5476 return -EINVAL; 5477 vport->cfg_max_scsicmpl_time = val; 5478 5479 spin_lock_irq(shost->host_lock); 5480 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5481 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5482 continue; 5483 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5484 } 5485 spin_unlock_irq(shost->host_lock); 5486 return 0; 5487 } 5488 lpfc_vport_param_store(max_scsicmpl_time); 5489 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5490 5491 /* 5492 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5493 # range is [0,1]. Default value is 0. 5494 */ 5495 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5496 5497 /* 5498 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5499 # range is [0,1]. Default value is 1. 5500 */ 5501 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5502 5503 /* 5504 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5505 * range is [0,1]. Default value is 0. 5506 * For [0], FCP commands are issued to Work Queues based on upper layer 5507 * hardware queue index. 5508 * For [1], FCP commands are issued to a Work Queue associated with the 5509 * current CPU. 5510 * 5511 * LPFC_FCP_SCHED_BY_HDWQ == 0 5512 * LPFC_FCP_SCHED_BY_CPU == 1 5513 * 5514 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5515 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5516 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5517 * through WQs will be used. 5518 */ 5519 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5520 LPFC_FCP_SCHED_BY_HDWQ, 5521 LPFC_FCP_SCHED_BY_CPU, 5522 "Determine scheduling algorithm for " 5523 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5524 5525 /* 5526 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5527 * range is [0,1]. Default value is 0. 5528 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5529 * For [1], GID_PT is used for NameServer queries after RSCN 5530 * 5531 */ 5532 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5533 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5534 "Determine algorithm NameServer queries after RSCN " 5535 "[0] - GID_FT, [1] - GID_PT"); 5536 5537 /* 5538 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5539 # range is [0,1]. Default value is 0. 5540 # For [0], bus reset issues target reset to ALL devices 5541 # For [1], bus reset issues target reset to non-FCP2 devices 5542 */ 5543 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5544 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5545 5546 5547 /* 5548 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5549 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5550 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5551 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5552 # cr_delay is set to 0. 5553 */ 5554 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5555 "interrupt response is generated"); 5556 5557 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5558 "interrupt response is generated"); 5559 5560 /* 5561 # lpfc_multi_ring_support: Determines how many rings to spread available 5562 # cmd/rsp IOCB entries across. 5563 # Value range is [1,2]. Default value is 1. 5564 */ 5565 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5566 "SLI rings to spread IOCB entries across"); 5567 5568 /* 5569 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5570 # identifies what rctl value to configure the additional ring for. 5571 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5572 */ 5573 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5574 255, "Identifies RCTL for additional ring configuration"); 5575 5576 /* 5577 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5578 # identifies what type value to configure the additional ring for. 5579 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5580 */ 5581 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5582 255, "Identifies TYPE for additional ring configuration"); 5583 5584 /* 5585 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5586 # 0 = SmartSAN functionality disabled (default) 5587 # 1 = SmartSAN functionality enabled 5588 # This parameter will override the value of lpfc_fdmi_on module parameter. 5589 # Value range is [0,1]. Default value is 0. 5590 */ 5591 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5592 5593 /* 5594 # lpfc_fdmi_on: Controls FDMI support. 5595 # 0 No FDMI support 5596 # 1 Traditional FDMI support (default) 5597 # Traditional FDMI support means the driver will assume FDMI-2 support; 5598 # however, if that fails, it will fallback to FDMI-1. 5599 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5600 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5601 # lpfc_fdmi_on. 5602 # Value range [0,1]. Default value is 1. 5603 */ 5604 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5605 5606 /* 5607 # Specifies the maximum number of ELS cmds we can have outstanding (for 5608 # discovery). Value range is [1,64]. Default value = 32. 5609 */ 5610 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5611 "during discovery"); 5612 5613 /* 5614 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5615 # will be scanned by the SCSI midlayer when sequential scanning is 5616 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5617 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5618 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5619 # above. The lpfc driver limits the default value to 255 for two reasons. 5620 # As it bounds the sequential scan loop, scanning for thousands of luns 5621 # on a target can take minutes of wall clock time. Additionally, 5622 # there are FC targets, such as JBODs, that only recognize 8-bits of 5623 # LUN ID. When they receive a value greater than 8 bits, they chop off 5624 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5625 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5626 # valid responses at each of the LUN IDs, to believe there are multiple 5627 # devices present, when in fact, there is only 1. 5628 # A customer that is aware of their target behaviors, and the results as 5629 # indicated above, is welcome to increase the lpfc_max_luns value. 5630 # As mentioned, this value is not used by the lpfc driver, only the 5631 # SCSI midlayer. 5632 # Value range is [0,65535]. Default value is 255. 5633 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5634 */ 5635 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5636 5637 /* 5638 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5639 # Value range is [1,255], default value is 10. 5640 */ 5641 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5642 "Milliseconds driver will wait between polling FCP ring"); 5643 5644 /* 5645 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5646 # to complete in seconds. Value range is [5,180], default value is 60. 5647 */ 5648 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5649 "Maximum time to wait for task management commands to complete"); 5650 /* 5651 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5652 # support this feature 5653 # 0 = MSI disabled 5654 # 1 = MSI enabled 5655 # 2 = MSI-X enabled (default) 5656 # Value range is [0,2]. Default value is 2. 5657 */ 5658 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5659 "MSI-X (2), if possible"); 5660 5661 /* 5662 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5663 * 5664 * 0 = NVME OAS disabled 5665 * 1 = NVME OAS enabled 5666 * 5667 * Value range is [0,1]. Default value is 0. 5668 */ 5669 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5670 "Use OAS bit on NVME IOs"); 5671 5672 /* 5673 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5674 * 5675 * 0 = Put NVME Command in SGL 5676 * 1 = Embed NVME Command in WQE (unless G7) 5677 * 2 = Embed NVME Command in WQE (force) 5678 * 5679 * Value range is [0,2]. Default value is 1. 5680 */ 5681 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5682 "Embed NVME Command in WQE"); 5683 5684 /* 5685 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5686 * the driver will advertise it supports to the SCSI layer. 5687 * 5688 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5689 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5690 * 5691 * Value range is [0,256]. Default value is 8. 5692 */ 5693 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5694 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5695 "Set the number of SCSI Queues advertised"); 5696 5697 /* 5698 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5699 * will advertise it supports to the NVME and SCSI layers. This also 5700 * will map to the number of CQ/WQ pairs the driver will create. 5701 * 5702 * The NVME Layer will try to create this many, plus 1 administrative 5703 * hardware queue. The administrative queue will always map to WQ 0 5704 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5705 * 5706 * 0 = Configure the number of hdw queues to the number of active CPUs. 5707 * 1,256 = Manually specify how many hdw queues to use. 5708 * 5709 * Value range is [0,256]. Default value is 0. 5710 */ 5711 LPFC_ATTR_R(hdw_queue, 5712 LPFC_HBA_HDWQ_DEF, 5713 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5714 "Set the number of I/O Hardware Queues"); 5715 5716 #if IS_ENABLED(CONFIG_X86) 5717 /** 5718 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5719 * irq_chann_mode 5720 * @phba: Pointer to HBA context object. 5721 **/ 5722 static void 5723 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5724 { 5725 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5726 const struct cpumask *sibling_mask; 5727 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5728 5729 cpumask_clear(aff_mask); 5730 5731 if (phba->irq_chann_mode == NUMA_MODE) { 5732 /* Check if we're a NUMA architecture */ 5733 numa_node = dev_to_node(&phba->pcidev->dev); 5734 if (numa_node == NUMA_NO_NODE) { 5735 phba->irq_chann_mode = NORMAL_MODE; 5736 return; 5737 } 5738 } 5739 5740 for_each_possible_cpu(cpu) { 5741 switch (phba->irq_chann_mode) { 5742 case NUMA_MODE: 5743 if (cpu_to_node(cpu) == numa_node) 5744 cpumask_set_cpu(cpu, aff_mask); 5745 break; 5746 case NHT_MODE: 5747 sibling_mask = topology_sibling_cpumask(cpu); 5748 first_cpu = cpumask_first(sibling_mask); 5749 if (first_cpu < nr_cpu_ids) 5750 cpumask_set_cpu(first_cpu, aff_mask); 5751 break; 5752 default: 5753 break; 5754 } 5755 } 5756 } 5757 #endif 5758 5759 static void 5760 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5761 { 5762 #if IS_ENABLED(CONFIG_X86) 5763 switch (boot_cpu_data.x86_vendor) { 5764 case X86_VENDOR_AMD: 5765 /* If AMD architecture, then default is NUMA_MODE */ 5766 phba->irq_chann_mode = NUMA_MODE; 5767 break; 5768 case X86_VENDOR_INTEL: 5769 /* If Intel architecture, then default is no hyperthread mode */ 5770 phba->irq_chann_mode = NHT_MODE; 5771 break; 5772 default: 5773 phba->irq_chann_mode = NORMAL_MODE; 5774 break; 5775 } 5776 lpfc_cpumask_irq_mode_init(phba); 5777 #else 5778 phba->irq_chann_mode = NORMAL_MODE; 5779 #endif 5780 } 5781 5782 /* 5783 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5784 * for Hardware Queues to utilize. This also will map to the number 5785 * of EQ / MSI-X vectors the driver will create. This should never be 5786 * more than the number of Hardware Queues 5787 * 5788 * 0 = Configure number of IRQ Channels to: 5789 * if AMD architecture, number of CPUs on HBA's NUMA node 5790 * if Intel architecture, number of physical CPUs. 5791 * otherwise, number of active CPUs. 5792 * [1,256] = Manually specify how many IRQ Channels to use. 5793 * 5794 * Value range is [0,256]. Default value is [0]. 5795 */ 5796 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5797 module_param(lpfc_irq_chann, uint, 0444); 5798 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5799 5800 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5801 * @phba: lpfc_hba pointer. 5802 * @val: contains the initial value 5803 * 5804 * Description: 5805 * Validates the initial value is within range and assigns it to the 5806 * adapter. If not in range, an error message is posted and the 5807 * default value is assigned. 5808 * 5809 * Returns: 5810 * zero if value is in range and is set 5811 * -EINVAL if value was out of range 5812 **/ 5813 static int 5814 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5815 { 5816 const struct cpumask *aff_mask; 5817 5818 if (phba->cfg_use_msi != 2) { 5819 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5820 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5821 phba->cfg_use_msi); 5822 phba->irq_chann_mode = NORMAL_MODE; 5823 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5824 return 0; 5825 } 5826 5827 /* Check if default setting was passed */ 5828 if (val == LPFC_IRQ_CHANN_DEF && 5829 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5830 phba->sli_rev == LPFC_SLI_REV4) 5831 lpfc_assign_default_irq_chann(phba); 5832 5833 if (phba->irq_chann_mode != NORMAL_MODE) { 5834 aff_mask = &phba->sli4_hba.irq_aff_mask; 5835 5836 if (cpumask_empty(aff_mask)) { 5837 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5838 "8533 Could not identify CPUS for " 5839 "mode %d, ignoring\n", 5840 phba->irq_chann_mode); 5841 phba->irq_chann_mode = NORMAL_MODE; 5842 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5843 } else { 5844 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5845 5846 /* If no hyperthread mode, then set hdwq count to 5847 * aff_mask weight as well 5848 */ 5849 if (phba->irq_chann_mode == NHT_MODE) 5850 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5851 5852 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5853 "8543 lpfc_irq_chann set to %u " 5854 "(mode: %d)\n", phba->cfg_irq_chann, 5855 phba->irq_chann_mode); 5856 } 5857 } else { 5858 if (val > LPFC_IRQ_CHANN_MAX) { 5859 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5860 "8545 lpfc_irq_chann attribute cannot " 5861 "be set to %u, allowed range is " 5862 "[%u,%u]\n", 5863 val, 5864 LPFC_IRQ_CHANN_MIN, 5865 LPFC_IRQ_CHANN_MAX); 5866 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5867 return -EINVAL; 5868 } 5869 if (phba->sli_rev == LPFC_SLI_REV4) { 5870 phba->cfg_irq_chann = val; 5871 } else { 5872 phba->cfg_irq_chann = 2; 5873 phba->cfg_hdw_queue = 1; 5874 } 5875 } 5876 5877 return 0; 5878 } 5879 5880 /** 5881 * lpfc_irq_chann_show - Display value of irq_chann 5882 * @dev: class converted to a Scsi_host structure. 5883 * @attr: device attribute, not used. 5884 * @buf: on return contains a string with the list sizes 5885 * 5886 * Returns: size of formatted string. 5887 **/ 5888 static ssize_t 5889 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5890 char *buf) 5891 { 5892 struct Scsi_Host *shost = class_to_shost(dev); 5893 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5894 struct lpfc_hba *phba = vport->phba; 5895 5896 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5897 } 5898 5899 static DEVICE_ATTR_RO(lpfc_irq_chann); 5900 5901 /* 5902 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5903 # 0 = HBA resets disabled 5904 # 1 = HBA resets enabled (default) 5905 # 2 = HBA reset via PCI bus reset enabled 5906 # Value range is [0,2]. Default value is 1. 5907 */ 5908 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5909 5910 /* 5911 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5912 # 0 = HBA Heartbeat disabled 5913 # 1 = HBA Heartbeat enabled (default) 5914 # Value range is [0,1]. Default value is 1. 5915 */ 5916 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5917 5918 /* 5919 # lpfc_EnableXLane: Enable Express Lane Feature 5920 # 0x0 Express Lane Feature disabled 5921 # 0x1 Express Lane Feature enabled 5922 # Value range is [0,1]. Default value is 0. 5923 */ 5924 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5925 5926 /* 5927 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5928 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5929 # Value range is [0x0,0x7f]. Default value is 0 5930 */ 5931 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5932 5933 /* 5934 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5935 # 0 = BlockGuard disabled (default) 5936 # 1 = BlockGuard enabled 5937 # Value range is [0,1]. Default value is 0. 5938 */ 5939 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5940 5941 /* 5942 # lpfc_prot_mask: 5943 # - Bit mask of host protection capabilities used to register with the 5944 # SCSI mid-layer 5945 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5946 # - Allows you to ultimately specify which profiles to use 5947 # - Default will result in registering capabilities for all profiles. 5948 # - SHOST_DIF_TYPE1_PROTECTION 1 5949 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5950 # - SHOST_DIX_TYPE0_PROTECTION 8 5951 # HBA supports DIX Type 0: Host to HBA protection only 5952 # - SHOST_DIX_TYPE1_PROTECTION 16 5953 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5954 # 5955 */ 5956 LPFC_ATTR(prot_mask, 5957 (SHOST_DIF_TYPE1_PROTECTION | 5958 SHOST_DIX_TYPE0_PROTECTION | 5959 SHOST_DIX_TYPE1_PROTECTION), 5960 0, 5961 (SHOST_DIF_TYPE1_PROTECTION | 5962 SHOST_DIX_TYPE0_PROTECTION | 5963 SHOST_DIX_TYPE1_PROTECTION), 5964 "T10-DIF host protection capabilities mask"); 5965 5966 /* 5967 # lpfc_prot_guard: 5968 # - Bit mask of protection guard types to register with the SCSI mid-layer 5969 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5970 # - Allows you to ultimately specify which profiles to use 5971 # - Default will result in registering capabilities for all guard types 5972 # 5973 */ 5974 LPFC_ATTR(prot_guard, 5975 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5976 "T10-DIF host protection guard type"); 5977 5978 /* 5979 * Delay initial NPort discovery when Clean Address bit is cleared in 5980 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5981 * This parameter can have value 0 or 1. 5982 * When this parameter is set to 0, no delay is added to the initial 5983 * discovery. 5984 * When this parameter is set to non-zero value, initial Nport discovery is 5985 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5986 * accept and FCID/Fabric name/Fabric portname is changed. 5987 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5988 * when Clean Address bit is cleared in FLOGI/FDISC 5989 * accept and FCID/Fabric name/Fabric portname is changed. 5990 * Default value is 0. 5991 */ 5992 LPFC_ATTR(delay_discovery, 0, 0, 1, 5993 "Delay NPort discovery when Clean Address bit is cleared."); 5994 5995 /* 5996 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5997 * This value can be set to values between 64 and 4096. The default value 5998 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5999 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 6000 * Because of the additional overhead involved in setting up T10-DIF, 6001 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 6002 * and will be limited to 512 if BlockGuard is enabled under SLI3. 6003 */ 6004 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6005 module_param(lpfc_sg_seg_cnt, uint, 0444); 6006 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 6007 6008 /** 6009 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 6010 * configured for the adapter 6011 * @dev: class converted to a Scsi_host structure. 6012 * @attr: device attribute, not used. 6013 * @buf: on return contains a string with the list sizes 6014 * 6015 * Returns: size of formatted string. 6016 **/ 6017 static ssize_t 6018 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6019 char *buf) 6020 { 6021 struct Scsi_Host *shost = class_to_shost(dev); 6022 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6023 struct lpfc_hba *phba = vport->phba; 6024 int len; 6025 6026 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6027 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6028 6029 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6030 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6031 phba->cfg_nvme_seg_cnt); 6032 return len; 6033 } 6034 6035 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6036 6037 /** 6038 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6039 * @phba: lpfc_hba pointer. 6040 * @val: contains the initial value 6041 * 6042 * Description: 6043 * Validates the initial value is within range and assigns it to the 6044 * adapter. If not in range, an error message is posted and the 6045 * default value is assigned. 6046 * 6047 * Returns: 6048 * zero if value is in range and is set 6049 * -EINVAL if value was out of range 6050 **/ 6051 static int 6052 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6053 { 6054 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6055 phba->cfg_sg_seg_cnt = val; 6056 return 0; 6057 } 6058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6059 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 6060 "allowed range is [%d, %d]\n", 6061 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6062 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6063 return -EINVAL; 6064 } 6065 6066 /* 6067 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6068 * 0 = MDS Diagnostics disabled (default) 6069 * 1 = MDS Diagnostics enabled 6070 * Value range is [0,1]. Default value is 0. 6071 */ 6072 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6073 6074 /* 6075 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6076 * 0 = Disable firmware logging (default) 6077 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6078 * Value range [0..4]. Default value is 0 6079 */ 6080 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6081 lpfc_param_show(ras_fwlog_buffsize); 6082 6083 static ssize_t 6084 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6085 { 6086 int ret = 0; 6087 enum ras_state state; 6088 6089 if (!lpfc_rangecheck(val, 0, 4)) 6090 return -EINVAL; 6091 6092 if (phba->cfg_ras_fwlog_buffsize == val) 6093 return 0; 6094 6095 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6096 return -EINVAL; 6097 6098 spin_lock_irq(&phba->hbalock); 6099 state = phba->ras_fwlog.state; 6100 spin_unlock_irq(&phba->hbalock); 6101 6102 if (state == REG_INPROGRESS) { 6103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6104 "registration is in progress\n"); 6105 return -EBUSY; 6106 } 6107 6108 /* For disable logging: stop the logs and free the DMA. 6109 * For ras_fwlog_buffsize size change we still need to free and 6110 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6111 */ 6112 phba->cfg_ras_fwlog_buffsize = val; 6113 if (state == ACTIVE) { 6114 lpfc_ras_stop_fwlog(phba); 6115 lpfc_sli4_ras_dma_free(phba); 6116 } 6117 6118 lpfc_sli4_ras_init(phba); 6119 if (phba->ras_fwlog.ras_enabled) 6120 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6121 LPFC_RAS_ENABLE_LOGGING); 6122 return ret; 6123 } 6124 6125 lpfc_param_store(ras_fwlog_buffsize); 6126 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6127 6128 /* 6129 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6130 * Valid only if firmware logging is enabled 6131 * 0(Least Verbosity) 4 (most verbosity) 6132 * Value range is [0..4]. Default value is 0 6133 */ 6134 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6135 6136 /* 6137 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6138 * Default function which has RAS support : 0 6139 * Value Range is [0..7]. 6140 * FW logging is a global action and enablement is via a specific 6141 * port. 6142 */ 6143 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6144 6145 /* 6146 * lpfc_enable_bbcr: Enable BB Credit Recovery 6147 * 0 = BB Credit Recovery disabled 6148 * 1 = BB Credit Recovery enabled (default) 6149 * Value range is [0,1]. Default value is 1. 6150 */ 6151 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6152 6153 /* 6154 * lpfc_enable_dpp: Enable DPP on G7 6155 * 0 = DPP on G7 disabled 6156 * 1 = DPP on G7 enabled (default) 6157 * Value range is [0,1]. Default value is 1. 6158 */ 6159 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6160 6161 /* 6162 * lpfc_enable_mi: Enable FDMI MIB 6163 * 0 = disabled 6164 * 1 = enabled (default) 6165 * Value range is [0,1]. 6166 */ 6167 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6168 6169 /* 6170 * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if 6171 * either vmid_app_header or vmid_priority_tagging is enabled. 6172 * 4 - 255 = vmid support enabled for 4-255 VMs 6173 * Value range is [4,255]. 6174 */ 6175 LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, 6176 "Maximum number of VMs supported"); 6177 6178 /* 6179 * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours 6180 * 0 = Timeout is disabled 6181 * Value range is [0,24]. 6182 */ 6183 LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, 6184 "Inactivity timeout in hours"); 6185 6186 /* 6187 * lpfc_vmid_app_header: Enable App Header VMID support 6188 * 0 = Support is disabled (default) 6189 * 1 = Support is enabled 6190 * Value range is [0,1]. 6191 */ 6192 LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, 6193 LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, 6194 "Enable App Header VMID support"); 6195 6196 /* 6197 * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support 6198 * 0 = Support is disabled (default) 6199 * 1 = Allow supported targets only 6200 * 2 = Allow all targets 6201 * Value range is [0,2]. 6202 */ 6203 LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, 6204 LPFC_VMID_PRIO_TAG_DISABLE, 6205 LPFC_VMID_PRIO_TAG_ALL_TARGETS, 6206 "Enable Priority Tagging VMID support"); 6207 6208 struct device_attribute *lpfc_hba_attrs[] = { 6209 &dev_attr_nvme_info, 6210 &dev_attr_scsi_stat, 6211 &dev_attr_bg_info, 6212 &dev_attr_bg_guard_err, 6213 &dev_attr_bg_apptag_err, 6214 &dev_attr_bg_reftag_err, 6215 &dev_attr_info, 6216 &dev_attr_serialnum, 6217 &dev_attr_modeldesc, 6218 &dev_attr_modelname, 6219 &dev_attr_programtype, 6220 &dev_attr_portnum, 6221 &dev_attr_fwrev, 6222 &dev_attr_hdw, 6223 &dev_attr_option_rom_version, 6224 &dev_attr_link_state, 6225 &dev_attr_num_discovered_ports, 6226 &dev_attr_menlo_mgmt_mode, 6227 &dev_attr_lpfc_drvr_version, 6228 &dev_attr_lpfc_enable_fip, 6229 &dev_attr_lpfc_temp_sensor, 6230 &dev_attr_lpfc_log_verbose, 6231 &dev_attr_lpfc_lun_queue_depth, 6232 &dev_attr_lpfc_tgt_queue_depth, 6233 &dev_attr_lpfc_hba_queue_depth, 6234 &dev_attr_lpfc_peer_port_login, 6235 &dev_attr_lpfc_nodev_tmo, 6236 &dev_attr_lpfc_devloss_tmo, 6237 &dev_attr_lpfc_enable_fc4_type, 6238 &dev_attr_lpfc_fcp_class, 6239 &dev_attr_lpfc_use_adisc, 6240 &dev_attr_lpfc_first_burst_size, 6241 &dev_attr_lpfc_ack0, 6242 &dev_attr_lpfc_xri_rebalancing, 6243 &dev_attr_lpfc_topology, 6244 &dev_attr_lpfc_scan_down, 6245 &dev_attr_lpfc_link_speed, 6246 &dev_attr_lpfc_fcp_io_sched, 6247 &dev_attr_lpfc_ns_query, 6248 &dev_attr_lpfc_fcp2_no_tgt_reset, 6249 &dev_attr_lpfc_cr_delay, 6250 &dev_attr_lpfc_cr_count, 6251 &dev_attr_lpfc_multi_ring_support, 6252 &dev_attr_lpfc_multi_ring_rctl, 6253 &dev_attr_lpfc_multi_ring_type, 6254 &dev_attr_lpfc_fdmi_on, 6255 &dev_attr_lpfc_enable_SmartSAN, 6256 &dev_attr_lpfc_max_luns, 6257 &dev_attr_lpfc_enable_npiv, 6258 &dev_attr_lpfc_fcf_failover_policy, 6259 &dev_attr_lpfc_enable_rrq, 6260 &dev_attr_lpfc_fcp_wait_abts_rsp, 6261 &dev_attr_nport_evt_cnt, 6262 &dev_attr_board_mode, 6263 &dev_attr_max_vpi, 6264 &dev_attr_used_vpi, 6265 &dev_attr_max_rpi, 6266 &dev_attr_used_rpi, 6267 &dev_attr_max_xri, 6268 &dev_attr_used_xri, 6269 &dev_attr_npiv_info, 6270 &dev_attr_issue_reset, 6271 &dev_attr_lpfc_poll, 6272 &dev_attr_lpfc_poll_tmo, 6273 &dev_attr_lpfc_task_mgmt_tmo, 6274 &dev_attr_lpfc_use_msi, 6275 &dev_attr_lpfc_nvme_oas, 6276 &dev_attr_lpfc_nvme_embed_cmd, 6277 &dev_attr_lpfc_fcp_imax, 6278 &dev_attr_lpfc_force_rscn, 6279 &dev_attr_lpfc_cq_poll_threshold, 6280 &dev_attr_lpfc_cq_max_proc_limit, 6281 &dev_attr_lpfc_fcp_cpu_map, 6282 &dev_attr_lpfc_fcp_mq_threshold, 6283 &dev_attr_lpfc_hdw_queue, 6284 &dev_attr_lpfc_irq_chann, 6285 &dev_attr_lpfc_suppress_rsp, 6286 &dev_attr_lpfc_nvmet_mrq, 6287 &dev_attr_lpfc_nvmet_mrq_post, 6288 &dev_attr_lpfc_nvme_enable_fb, 6289 &dev_attr_lpfc_nvmet_fb_size, 6290 &dev_attr_lpfc_enable_bg, 6291 &dev_attr_lpfc_soft_wwnn, 6292 &dev_attr_lpfc_soft_wwpn, 6293 &dev_attr_lpfc_soft_wwn_enable, 6294 &dev_attr_lpfc_enable_hba_reset, 6295 &dev_attr_lpfc_enable_hba_heartbeat, 6296 &dev_attr_lpfc_EnableXLane, 6297 &dev_attr_lpfc_XLanePriority, 6298 &dev_attr_lpfc_xlane_lun, 6299 &dev_attr_lpfc_xlane_tgt, 6300 &dev_attr_lpfc_xlane_vpt, 6301 &dev_attr_lpfc_xlane_lun_state, 6302 &dev_attr_lpfc_xlane_lun_status, 6303 &dev_attr_lpfc_xlane_priority, 6304 &dev_attr_lpfc_sg_seg_cnt, 6305 &dev_attr_lpfc_max_scsicmpl_time, 6306 &dev_attr_lpfc_stat_data_ctrl, 6307 &dev_attr_lpfc_aer_support, 6308 &dev_attr_lpfc_aer_state_cleanup, 6309 &dev_attr_lpfc_sriov_nr_virtfn, 6310 &dev_attr_lpfc_req_fw_upgrade, 6311 &dev_attr_lpfc_suppress_link_up, 6312 &dev_attr_iocb_hw, 6313 &dev_attr_pls, 6314 &dev_attr_pt, 6315 &dev_attr_txq_hw, 6316 &dev_attr_txcmplq_hw, 6317 &dev_attr_lpfc_sriov_hw_max_virtfn, 6318 &dev_attr_protocol, 6319 &dev_attr_lpfc_xlane_supported, 6320 &dev_attr_lpfc_enable_mds_diags, 6321 &dev_attr_lpfc_ras_fwlog_buffsize, 6322 &dev_attr_lpfc_ras_fwlog_level, 6323 &dev_attr_lpfc_ras_fwlog_func, 6324 &dev_attr_lpfc_enable_bbcr, 6325 &dev_attr_lpfc_enable_dpp, 6326 &dev_attr_lpfc_enable_mi, 6327 &dev_attr_lpfc_max_vmid, 6328 &dev_attr_lpfc_vmid_inactivity_timeout, 6329 &dev_attr_lpfc_vmid_app_header, 6330 &dev_attr_lpfc_vmid_priority_tagging, 6331 NULL, 6332 }; 6333 6334 struct device_attribute *lpfc_vport_attrs[] = { 6335 &dev_attr_info, 6336 &dev_attr_link_state, 6337 &dev_attr_num_discovered_ports, 6338 &dev_attr_lpfc_drvr_version, 6339 &dev_attr_lpfc_log_verbose, 6340 &dev_attr_lpfc_lun_queue_depth, 6341 &dev_attr_lpfc_tgt_queue_depth, 6342 &dev_attr_lpfc_nodev_tmo, 6343 &dev_attr_lpfc_devloss_tmo, 6344 &dev_attr_lpfc_hba_queue_depth, 6345 &dev_attr_lpfc_peer_port_login, 6346 &dev_attr_lpfc_restrict_login, 6347 &dev_attr_lpfc_fcp_class, 6348 &dev_attr_lpfc_use_adisc, 6349 &dev_attr_lpfc_first_burst_size, 6350 &dev_attr_lpfc_max_luns, 6351 &dev_attr_nport_evt_cnt, 6352 &dev_attr_npiv_info, 6353 &dev_attr_lpfc_enable_da_id, 6354 &dev_attr_lpfc_max_scsicmpl_time, 6355 &dev_attr_lpfc_stat_data_ctrl, 6356 &dev_attr_lpfc_static_vport, 6357 NULL, 6358 }; 6359 6360 /** 6361 * sysfs_ctlreg_write - Write method for writing to ctlreg 6362 * @filp: open sysfs file 6363 * @kobj: kernel kobject that contains the kernel class device. 6364 * @bin_attr: kernel attributes passed to us. 6365 * @buf: contains the data to be written to the adapter IOREG space. 6366 * @off: offset into buffer to beginning of data. 6367 * @count: bytes to transfer. 6368 * 6369 * Description: 6370 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6371 * Uses the adapter io control registers to send buf contents to the adapter. 6372 * 6373 * Returns: 6374 * -ERANGE off and count combo out of range 6375 * -EINVAL off, count or buff address invalid 6376 * -EPERM adapter is offline 6377 * value of count, buf contents written 6378 **/ 6379 static ssize_t 6380 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6381 struct bin_attribute *bin_attr, 6382 char *buf, loff_t off, size_t count) 6383 { 6384 size_t buf_off; 6385 struct device *dev = container_of(kobj, struct device, kobj); 6386 struct Scsi_Host *shost = class_to_shost(dev); 6387 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6388 struct lpfc_hba *phba = vport->phba; 6389 6390 if (phba->sli_rev >= LPFC_SLI_REV4) 6391 return -EPERM; 6392 6393 if ((off + count) > FF_REG_AREA_SIZE) 6394 return -ERANGE; 6395 6396 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6397 return 0; 6398 6399 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6400 return -EINVAL; 6401 6402 /* This is to protect HBA registers from accidental writes. */ 6403 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6404 return -EINVAL; 6405 6406 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6407 return -EPERM; 6408 6409 spin_lock_irq(&phba->hbalock); 6410 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6411 buf_off += sizeof(uint32_t)) 6412 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6413 phba->ctrl_regs_memmap_p + off + buf_off); 6414 6415 spin_unlock_irq(&phba->hbalock); 6416 6417 return count; 6418 } 6419 6420 /** 6421 * sysfs_ctlreg_read - Read method for reading from ctlreg 6422 * @filp: open sysfs file 6423 * @kobj: kernel kobject that contains the kernel class device. 6424 * @bin_attr: kernel attributes passed to us. 6425 * @buf: if successful contains the data from the adapter IOREG space. 6426 * @off: offset into buffer to beginning of data. 6427 * @count: bytes to transfer. 6428 * 6429 * Description: 6430 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6431 * Uses the adapter io control registers to read data into buf. 6432 * 6433 * Returns: 6434 * -ERANGE off and count combo out of range 6435 * -EINVAL off, count or buff address invalid 6436 * value of count, buf contents read 6437 **/ 6438 static ssize_t 6439 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6440 struct bin_attribute *bin_attr, 6441 char *buf, loff_t off, size_t count) 6442 { 6443 size_t buf_off; 6444 uint32_t * tmp_ptr; 6445 struct device *dev = container_of(kobj, struct device, kobj); 6446 struct Scsi_Host *shost = class_to_shost(dev); 6447 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6448 struct lpfc_hba *phba = vport->phba; 6449 6450 if (phba->sli_rev >= LPFC_SLI_REV4) 6451 return -EPERM; 6452 6453 if (off > FF_REG_AREA_SIZE) 6454 return -ERANGE; 6455 6456 if ((off + count) > FF_REG_AREA_SIZE) 6457 count = FF_REG_AREA_SIZE - off; 6458 6459 if (count == 0) return 0; 6460 6461 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6462 return -EINVAL; 6463 6464 spin_lock_irq(&phba->hbalock); 6465 6466 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6467 tmp_ptr = (uint32_t *)(buf + buf_off); 6468 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6469 } 6470 6471 spin_unlock_irq(&phba->hbalock); 6472 6473 return count; 6474 } 6475 6476 static struct bin_attribute sysfs_ctlreg_attr = { 6477 .attr = { 6478 .name = "ctlreg", 6479 .mode = S_IRUSR | S_IWUSR, 6480 }, 6481 .size = 256, 6482 .read = sysfs_ctlreg_read, 6483 .write = sysfs_ctlreg_write, 6484 }; 6485 6486 /** 6487 * sysfs_mbox_write - Write method for writing information via mbox 6488 * @filp: open sysfs file 6489 * @kobj: kernel kobject that contains the kernel class device. 6490 * @bin_attr: kernel attributes passed to us. 6491 * @buf: contains the data to be written to sysfs mbox. 6492 * @off: offset into buffer to beginning of data. 6493 * @count: bytes to transfer. 6494 * 6495 * Description: 6496 * Deprecated function. All mailbox access from user space is performed via the 6497 * bsg interface. 6498 * 6499 * Returns: 6500 * -EPERM operation not permitted 6501 **/ 6502 static ssize_t 6503 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6504 struct bin_attribute *bin_attr, 6505 char *buf, loff_t off, size_t count) 6506 { 6507 return -EPERM; 6508 } 6509 6510 /** 6511 * sysfs_mbox_read - Read method for reading information via mbox 6512 * @filp: open sysfs file 6513 * @kobj: kernel kobject that contains the kernel class device. 6514 * @bin_attr: kernel attributes passed to us. 6515 * @buf: contains the data to be read from sysfs mbox. 6516 * @off: offset into buffer to beginning of data. 6517 * @count: bytes to transfer. 6518 * 6519 * Description: 6520 * Deprecated function. All mailbox access from user space is performed via the 6521 * bsg interface. 6522 * 6523 * Returns: 6524 * -EPERM operation not permitted 6525 **/ 6526 static ssize_t 6527 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6528 struct bin_attribute *bin_attr, 6529 char *buf, loff_t off, size_t count) 6530 { 6531 return -EPERM; 6532 } 6533 6534 static struct bin_attribute sysfs_mbox_attr = { 6535 .attr = { 6536 .name = "mbox", 6537 .mode = S_IRUSR | S_IWUSR, 6538 }, 6539 .size = MAILBOX_SYSFS_MAX, 6540 .read = sysfs_mbox_read, 6541 .write = sysfs_mbox_write, 6542 }; 6543 6544 /** 6545 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6546 * @vport: address of lpfc vport structure. 6547 * 6548 * Return codes: 6549 * zero on success 6550 * error return code from sysfs_create_bin_file() 6551 **/ 6552 int 6553 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6554 { 6555 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6556 int error; 6557 6558 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6559 &sysfs_drvr_stat_data_attr); 6560 6561 /* Virtual ports do not need ctrl_reg and mbox */ 6562 if (error || vport->port_type == LPFC_NPIV_PORT) 6563 goto out; 6564 6565 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6566 &sysfs_ctlreg_attr); 6567 if (error) 6568 goto out_remove_stat_attr; 6569 6570 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6571 &sysfs_mbox_attr); 6572 if (error) 6573 goto out_remove_ctlreg_attr; 6574 6575 return 0; 6576 out_remove_ctlreg_attr: 6577 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6578 out_remove_stat_attr: 6579 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6580 &sysfs_drvr_stat_data_attr); 6581 out: 6582 return error; 6583 } 6584 6585 /** 6586 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6587 * @vport: address of lpfc vport structure. 6588 **/ 6589 void 6590 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6591 { 6592 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6593 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6594 &sysfs_drvr_stat_data_attr); 6595 /* Virtual ports do not need ctrl_reg and mbox */ 6596 if (vport->port_type == LPFC_NPIV_PORT) 6597 return; 6598 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6599 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6600 } 6601 6602 /* 6603 * Dynamic FC Host Attributes Support 6604 */ 6605 6606 /** 6607 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6608 * @shost: kernel scsi host pointer. 6609 **/ 6610 static void 6611 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6612 { 6613 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6614 6615 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6616 sizeof fc_host_symbolic_name(shost)); 6617 } 6618 6619 /** 6620 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6621 * @shost: kernel scsi host pointer. 6622 **/ 6623 static void 6624 lpfc_get_host_port_id(struct Scsi_Host *shost) 6625 { 6626 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6627 6628 /* note: fc_myDID already in cpu endianness */ 6629 fc_host_port_id(shost) = vport->fc_myDID; 6630 } 6631 6632 /** 6633 * lpfc_get_host_port_type - Set the value of the scsi host port type 6634 * @shost: kernel scsi host pointer. 6635 **/ 6636 static void 6637 lpfc_get_host_port_type(struct Scsi_Host *shost) 6638 { 6639 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6640 struct lpfc_hba *phba = vport->phba; 6641 6642 spin_lock_irq(shost->host_lock); 6643 6644 if (vport->port_type == LPFC_NPIV_PORT) { 6645 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6646 } else if (lpfc_is_link_up(phba)) { 6647 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6648 if (vport->fc_flag & FC_PUBLIC_LOOP) 6649 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6650 else 6651 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6652 } else { 6653 if (vport->fc_flag & FC_FABRIC) 6654 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6655 else 6656 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6657 } 6658 } else 6659 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6660 6661 spin_unlock_irq(shost->host_lock); 6662 } 6663 6664 /** 6665 * lpfc_get_host_port_state - Set the value of the scsi host port state 6666 * @shost: kernel scsi host pointer. 6667 **/ 6668 static void 6669 lpfc_get_host_port_state(struct Scsi_Host *shost) 6670 { 6671 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6672 struct lpfc_hba *phba = vport->phba; 6673 6674 spin_lock_irq(shost->host_lock); 6675 6676 if (vport->fc_flag & FC_OFFLINE_MODE) 6677 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6678 else { 6679 switch (phba->link_state) { 6680 case LPFC_LINK_UNKNOWN: 6681 case LPFC_LINK_DOWN: 6682 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6683 break; 6684 case LPFC_LINK_UP: 6685 case LPFC_CLEAR_LA: 6686 case LPFC_HBA_READY: 6687 /* Links up, reports port state accordingly */ 6688 if (vport->port_state < LPFC_VPORT_READY) 6689 fc_host_port_state(shost) = 6690 FC_PORTSTATE_BYPASSED; 6691 else 6692 fc_host_port_state(shost) = 6693 FC_PORTSTATE_ONLINE; 6694 break; 6695 case LPFC_HBA_ERROR: 6696 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6697 break; 6698 default: 6699 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6700 break; 6701 } 6702 } 6703 6704 spin_unlock_irq(shost->host_lock); 6705 } 6706 6707 /** 6708 * lpfc_get_host_speed - Set the value of the scsi host speed 6709 * @shost: kernel scsi host pointer. 6710 **/ 6711 static void 6712 lpfc_get_host_speed(struct Scsi_Host *shost) 6713 { 6714 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6715 struct lpfc_hba *phba = vport->phba; 6716 6717 spin_lock_irq(shost->host_lock); 6718 6719 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6720 switch(phba->fc_linkspeed) { 6721 case LPFC_LINK_SPEED_1GHZ: 6722 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6723 break; 6724 case LPFC_LINK_SPEED_2GHZ: 6725 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6726 break; 6727 case LPFC_LINK_SPEED_4GHZ: 6728 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6729 break; 6730 case LPFC_LINK_SPEED_8GHZ: 6731 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6732 break; 6733 case LPFC_LINK_SPEED_10GHZ: 6734 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6735 break; 6736 case LPFC_LINK_SPEED_16GHZ: 6737 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6738 break; 6739 case LPFC_LINK_SPEED_32GHZ: 6740 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6741 break; 6742 case LPFC_LINK_SPEED_64GHZ: 6743 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6744 break; 6745 case LPFC_LINK_SPEED_128GHZ: 6746 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6747 break; 6748 case LPFC_LINK_SPEED_256GHZ: 6749 fc_host_speed(shost) = FC_PORTSPEED_256GBIT; 6750 break; 6751 default: 6752 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6753 break; 6754 } 6755 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6756 switch (phba->fc_linkspeed) { 6757 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6758 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6759 break; 6760 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6761 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6762 break; 6763 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6764 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6765 break; 6766 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6767 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6768 break; 6769 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6770 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6771 break; 6772 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6773 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6774 break; 6775 default: 6776 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6777 break; 6778 } 6779 } else 6780 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6781 6782 spin_unlock_irq(shost->host_lock); 6783 } 6784 6785 /** 6786 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6787 * @shost: kernel scsi host pointer. 6788 **/ 6789 static void 6790 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6791 { 6792 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6793 struct lpfc_hba *phba = vport->phba; 6794 u64 node_name; 6795 6796 spin_lock_irq(shost->host_lock); 6797 6798 if ((vport->port_state > LPFC_FLOGI) && 6799 ((vport->fc_flag & FC_FABRIC) || 6800 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6801 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6802 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6803 else 6804 /* fabric is local port if there is no F/FL_Port */ 6805 node_name = 0; 6806 6807 spin_unlock_irq(shost->host_lock); 6808 6809 fc_host_fabric_name(shost) = node_name; 6810 } 6811 6812 /** 6813 * lpfc_get_stats - Return statistical information about the adapter 6814 * @shost: kernel scsi host pointer. 6815 * 6816 * Notes: 6817 * NULL on error for link down, no mbox pool, sli2 active, 6818 * management not allowed, memory allocation error, or mbox error. 6819 * 6820 * Returns: 6821 * NULL for error 6822 * address of the adapter host statistics 6823 **/ 6824 static struct fc_host_statistics * 6825 lpfc_get_stats(struct Scsi_Host *shost) 6826 { 6827 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6828 struct lpfc_hba *phba = vport->phba; 6829 struct lpfc_sli *psli = &phba->sli; 6830 struct fc_host_statistics *hs = &phba->link_stats; 6831 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6832 LPFC_MBOXQ_t *pmboxq; 6833 MAILBOX_t *pmb; 6834 int rc = 0; 6835 6836 /* 6837 * prevent udev from issuing mailbox commands until the port is 6838 * configured. 6839 */ 6840 if (phba->link_state < LPFC_LINK_DOWN || 6841 !phba->mbox_mem_pool || 6842 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6843 return NULL; 6844 6845 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6846 return NULL; 6847 6848 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6849 if (!pmboxq) 6850 return NULL; 6851 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6852 6853 pmb = &pmboxq->u.mb; 6854 pmb->mbxCommand = MBX_READ_STATUS; 6855 pmb->mbxOwner = OWN_HOST; 6856 pmboxq->ctx_buf = NULL; 6857 pmboxq->vport = vport; 6858 6859 if (vport->fc_flag & FC_OFFLINE_MODE) { 6860 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6861 if (rc != MBX_SUCCESS) { 6862 mempool_free(pmboxq, phba->mbox_mem_pool); 6863 return NULL; 6864 } 6865 } else { 6866 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6867 if (rc != MBX_SUCCESS) { 6868 if (rc != MBX_TIMEOUT) 6869 mempool_free(pmboxq, phba->mbox_mem_pool); 6870 return NULL; 6871 } 6872 } 6873 6874 memset(hs, 0, sizeof (struct fc_host_statistics)); 6875 6876 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6877 /* 6878 * The MBX_READ_STATUS returns tx_k_bytes which has to 6879 * converted to words 6880 */ 6881 hs->tx_words = (uint64_t) 6882 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6883 * (uint64_t)256); 6884 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6885 hs->rx_words = (uint64_t) 6886 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6887 * (uint64_t)256); 6888 6889 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6890 pmb->mbxCommand = MBX_READ_LNK_STAT; 6891 pmb->mbxOwner = OWN_HOST; 6892 pmboxq->ctx_buf = NULL; 6893 pmboxq->vport = vport; 6894 6895 if (vport->fc_flag & FC_OFFLINE_MODE) { 6896 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6897 if (rc != MBX_SUCCESS) { 6898 mempool_free(pmboxq, phba->mbox_mem_pool); 6899 return NULL; 6900 } 6901 } else { 6902 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6903 if (rc != MBX_SUCCESS) { 6904 if (rc != MBX_TIMEOUT) 6905 mempool_free(pmboxq, phba->mbox_mem_pool); 6906 return NULL; 6907 } 6908 } 6909 6910 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6911 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6912 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6913 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6914 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6915 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6916 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6917 6918 hs->link_failure_count -= lso->link_failure_count; 6919 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6920 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6921 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6922 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6923 hs->invalid_crc_count -= lso->invalid_crc_count; 6924 hs->error_frames -= lso->error_frames; 6925 6926 if (phba->hba_flag & HBA_FCOE_MODE) { 6927 hs->lip_count = -1; 6928 hs->nos_count = (phba->link_events >> 1); 6929 hs->nos_count -= lso->link_events; 6930 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6931 hs->lip_count = (phba->fc_eventTag >> 1); 6932 hs->lip_count -= lso->link_events; 6933 hs->nos_count = -1; 6934 } else { 6935 hs->lip_count = -1; 6936 hs->nos_count = (phba->fc_eventTag >> 1); 6937 hs->nos_count -= lso->link_events; 6938 } 6939 6940 hs->dumped_frames = -1; 6941 6942 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6943 6944 mempool_free(pmboxq, phba->mbox_mem_pool); 6945 6946 return hs; 6947 } 6948 6949 /** 6950 * lpfc_reset_stats - Copy the adapter link stats information 6951 * @shost: kernel scsi host pointer. 6952 **/ 6953 static void 6954 lpfc_reset_stats(struct Scsi_Host *shost) 6955 { 6956 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6957 struct lpfc_hba *phba = vport->phba; 6958 struct lpfc_sli *psli = &phba->sli; 6959 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6960 LPFC_MBOXQ_t *pmboxq; 6961 MAILBOX_t *pmb; 6962 int rc = 0; 6963 6964 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6965 return; 6966 6967 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6968 if (!pmboxq) 6969 return; 6970 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6971 6972 pmb = &pmboxq->u.mb; 6973 pmb->mbxCommand = MBX_READ_STATUS; 6974 pmb->mbxOwner = OWN_HOST; 6975 pmb->un.varWords[0] = 0x1; /* reset request */ 6976 pmboxq->ctx_buf = NULL; 6977 pmboxq->vport = vport; 6978 6979 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6980 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6981 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6982 if (rc != MBX_SUCCESS) { 6983 mempool_free(pmboxq, phba->mbox_mem_pool); 6984 return; 6985 } 6986 } else { 6987 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6988 if (rc != MBX_SUCCESS) { 6989 if (rc != MBX_TIMEOUT) 6990 mempool_free(pmboxq, phba->mbox_mem_pool); 6991 return; 6992 } 6993 } 6994 6995 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6996 pmb->mbxCommand = MBX_READ_LNK_STAT; 6997 pmb->mbxOwner = OWN_HOST; 6998 pmboxq->ctx_buf = NULL; 6999 pmboxq->vport = vport; 7000 7001 if ((vport->fc_flag & FC_OFFLINE_MODE) || 7002 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 7003 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 7004 if (rc != MBX_SUCCESS) { 7005 mempool_free(pmboxq, phba->mbox_mem_pool); 7006 return; 7007 } 7008 } else { 7009 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 7010 if (rc != MBX_SUCCESS) { 7011 if (rc != MBX_TIMEOUT) 7012 mempool_free(pmboxq, phba->mbox_mem_pool); 7013 return; 7014 } 7015 } 7016 7017 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 7018 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 7019 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 7020 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 7021 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 7022 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 7023 lso->error_frames = pmb->un.varRdLnk.crcCnt; 7024 if (phba->hba_flag & HBA_FCOE_MODE) 7025 lso->link_events = (phba->link_events >> 1); 7026 else 7027 lso->link_events = (phba->fc_eventTag >> 1); 7028 7029 psli->stats_start = ktime_get_seconds(); 7030 7031 mempool_free(pmboxq, phba->mbox_mem_pool); 7032 7033 return; 7034 } 7035 7036 /* 7037 * The LPFC driver treats linkdown handling as target loss events so there 7038 * are no sysfs handlers for link_down_tmo. 7039 */ 7040 7041 /** 7042 * lpfc_get_node_by_target - Return the nodelist for a target 7043 * @starget: kernel scsi target pointer. 7044 * 7045 * Returns: 7046 * address of the node list if found 7047 * NULL target not found 7048 **/ 7049 static struct lpfc_nodelist * 7050 lpfc_get_node_by_target(struct scsi_target *starget) 7051 { 7052 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 7053 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7054 struct lpfc_nodelist *ndlp; 7055 7056 spin_lock_irq(shost->host_lock); 7057 /* Search for this, mapped, target ID */ 7058 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 7059 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 7060 starget->id == ndlp->nlp_sid) { 7061 spin_unlock_irq(shost->host_lock); 7062 return ndlp; 7063 } 7064 } 7065 spin_unlock_irq(shost->host_lock); 7066 return NULL; 7067 } 7068 7069 /** 7070 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 7071 * @starget: kernel scsi target pointer. 7072 **/ 7073 static void 7074 lpfc_get_starget_port_id(struct scsi_target *starget) 7075 { 7076 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7077 7078 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7079 } 7080 7081 /** 7082 * lpfc_get_starget_node_name - Set the target node name 7083 * @starget: kernel scsi target pointer. 7084 * 7085 * Description: Set the target node name to the ndlp node name wwn or zero. 7086 **/ 7087 static void 7088 lpfc_get_starget_node_name(struct scsi_target *starget) 7089 { 7090 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7091 7092 fc_starget_node_name(starget) = 7093 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7094 } 7095 7096 /** 7097 * lpfc_get_starget_port_name - Set the target port name 7098 * @starget: kernel scsi target pointer. 7099 * 7100 * Description: set the target port name to the ndlp port name wwn or zero. 7101 **/ 7102 static void 7103 lpfc_get_starget_port_name(struct scsi_target *starget) 7104 { 7105 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7106 7107 fc_starget_port_name(starget) = 7108 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7109 } 7110 7111 /** 7112 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7113 * @rport: fc rport address. 7114 * @timeout: new value for dev loss tmo. 7115 * 7116 * Description: 7117 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7118 * dev_loss_tmo to one. 7119 **/ 7120 static void 7121 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7122 { 7123 struct lpfc_rport_data *rdata = rport->dd_data; 7124 struct lpfc_nodelist *ndlp = rdata->pnode; 7125 #if (IS_ENABLED(CONFIG_NVME_FC)) 7126 struct lpfc_nvme_rport *nrport = NULL; 7127 #endif 7128 7129 if (timeout) 7130 rport->dev_loss_tmo = timeout; 7131 else 7132 rport->dev_loss_tmo = 1; 7133 7134 if (!ndlp) { 7135 dev_info(&rport->dev, "Cannot find remote node to " 7136 "set rport dev loss tmo, port_id x%x\n", 7137 rport->port_id); 7138 return; 7139 } 7140 7141 #if (IS_ENABLED(CONFIG_NVME_FC)) 7142 nrport = lpfc_ndlp_get_nrport(ndlp); 7143 7144 if (nrport && nrport->remoteport) 7145 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7146 rport->dev_loss_tmo); 7147 #endif 7148 } 7149 7150 /* 7151 * lpfc_rport_show_function - Return rport target information 7152 * 7153 * Description: 7154 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7155 * 7156 * lpfc_show_rport_##field: returns the bytes formatted in buf 7157 * @cdev: class converted to an fc_rport. 7158 * @buf: on return contains the target_field or zero. 7159 * 7160 * Returns: size of formatted string. 7161 **/ 7162 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7163 static ssize_t \ 7164 lpfc_show_rport_##field (struct device *dev, \ 7165 struct device_attribute *attr, \ 7166 char *buf) \ 7167 { \ 7168 struct fc_rport *rport = transport_class_to_rport(dev); \ 7169 struct lpfc_rport_data *rdata = rport->hostdata; \ 7170 return scnprintf(buf, sz, format_string, \ 7171 (rdata->target) ? cast rdata->target->field : 0); \ 7172 } 7173 7174 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7175 lpfc_rport_show_function(field, format_string, sz, ) \ 7176 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7177 7178 /** 7179 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7180 * @fc_vport: The fc_vport who's symbolic name has been changed. 7181 * 7182 * Description: 7183 * This function is called by the transport after the @fc_vport's symbolic name 7184 * has been changed. This function re-registers the symbolic name with the 7185 * switch to propagate the change into the fabric if the vport is active. 7186 **/ 7187 static void 7188 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7189 { 7190 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7191 7192 if (vport->port_state == LPFC_VPORT_READY) 7193 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7194 } 7195 7196 /** 7197 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7198 * @phba: Pointer to lpfc_hba struct. 7199 * @verbose: Verbose level to set. 7200 * 7201 * This function is called by the lpfc_get_cfgparam() routine to set the 7202 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7203 * log message according to the module's lpfc_log_verbose parameter setting 7204 * before hba port or vport created. 7205 **/ 7206 static void 7207 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7208 { 7209 phba->cfg_log_verbose = verbose; 7210 } 7211 7212 struct fc_function_template lpfc_transport_functions = { 7213 /* fixed attributes the driver supports */ 7214 .show_host_node_name = 1, 7215 .show_host_port_name = 1, 7216 .show_host_supported_classes = 1, 7217 .show_host_supported_fc4s = 1, 7218 .show_host_supported_speeds = 1, 7219 .show_host_maxframe_size = 1, 7220 7221 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7222 .show_host_symbolic_name = 1, 7223 7224 /* dynamic attributes the driver supports */ 7225 .get_host_port_id = lpfc_get_host_port_id, 7226 .show_host_port_id = 1, 7227 7228 .get_host_port_type = lpfc_get_host_port_type, 7229 .show_host_port_type = 1, 7230 7231 .get_host_port_state = lpfc_get_host_port_state, 7232 .show_host_port_state = 1, 7233 7234 /* active_fc4s is shown but doesn't change (thus no get function) */ 7235 .show_host_active_fc4s = 1, 7236 7237 .get_host_speed = lpfc_get_host_speed, 7238 .show_host_speed = 1, 7239 7240 .get_host_fabric_name = lpfc_get_host_fabric_name, 7241 .show_host_fabric_name = 1, 7242 7243 /* 7244 * The LPFC driver treats linkdown handling as target loss events 7245 * so there are no sysfs handlers for link_down_tmo. 7246 */ 7247 7248 .get_fc_host_stats = lpfc_get_stats, 7249 .reset_fc_host_stats = lpfc_reset_stats, 7250 7251 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7252 .show_rport_maxframe_size = 1, 7253 .show_rport_supported_classes = 1, 7254 7255 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7256 .show_rport_dev_loss_tmo = 1, 7257 7258 .get_starget_port_id = lpfc_get_starget_port_id, 7259 .show_starget_port_id = 1, 7260 7261 .get_starget_node_name = lpfc_get_starget_node_name, 7262 .show_starget_node_name = 1, 7263 7264 .get_starget_port_name = lpfc_get_starget_port_name, 7265 .show_starget_port_name = 1, 7266 7267 .issue_fc_host_lip = lpfc_issue_lip, 7268 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7269 .terminate_rport_io = lpfc_terminate_rport_io, 7270 7271 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7272 7273 .vport_disable = lpfc_vport_disable, 7274 7275 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7276 7277 .bsg_request = lpfc_bsg_request, 7278 .bsg_timeout = lpfc_bsg_timeout, 7279 }; 7280 7281 struct fc_function_template lpfc_vport_transport_functions = { 7282 /* fixed attributes the driver supports */ 7283 .show_host_node_name = 1, 7284 .show_host_port_name = 1, 7285 .show_host_supported_classes = 1, 7286 .show_host_supported_fc4s = 1, 7287 .show_host_supported_speeds = 1, 7288 .show_host_maxframe_size = 1, 7289 7290 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7291 .show_host_symbolic_name = 1, 7292 7293 /* dynamic attributes the driver supports */ 7294 .get_host_port_id = lpfc_get_host_port_id, 7295 .show_host_port_id = 1, 7296 7297 .get_host_port_type = lpfc_get_host_port_type, 7298 .show_host_port_type = 1, 7299 7300 .get_host_port_state = lpfc_get_host_port_state, 7301 .show_host_port_state = 1, 7302 7303 /* active_fc4s is shown but doesn't change (thus no get function) */ 7304 .show_host_active_fc4s = 1, 7305 7306 .get_host_speed = lpfc_get_host_speed, 7307 .show_host_speed = 1, 7308 7309 .get_host_fabric_name = lpfc_get_host_fabric_name, 7310 .show_host_fabric_name = 1, 7311 7312 /* 7313 * The LPFC driver treats linkdown handling as target loss events 7314 * so there are no sysfs handlers for link_down_tmo. 7315 */ 7316 7317 .get_fc_host_stats = lpfc_get_stats, 7318 .reset_fc_host_stats = lpfc_reset_stats, 7319 7320 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7321 .show_rport_maxframe_size = 1, 7322 .show_rport_supported_classes = 1, 7323 7324 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7325 .show_rport_dev_loss_tmo = 1, 7326 7327 .get_starget_port_id = lpfc_get_starget_port_id, 7328 .show_starget_port_id = 1, 7329 7330 .get_starget_node_name = lpfc_get_starget_node_name, 7331 .show_starget_node_name = 1, 7332 7333 .get_starget_port_name = lpfc_get_starget_port_name, 7334 .show_starget_port_name = 1, 7335 7336 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7337 .terminate_rport_io = lpfc_terminate_rport_io, 7338 7339 .vport_disable = lpfc_vport_disable, 7340 7341 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7342 }; 7343 7344 /** 7345 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7346 * Mode 7347 * @phba: lpfc_hba pointer. 7348 **/ 7349 static void 7350 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7351 { 7352 /* If the adapter supports FCoE mode */ 7353 switch (phba->pcidev->device) { 7354 case PCI_DEVICE_ID_SKYHAWK: 7355 case PCI_DEVICE_ID_SKYHAWK_VF: 7356 case PCI_DEVICE_ID_LANCER_FCOE: 7357 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7358 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7359 case PCI_DEVICE_ID_HORNET: 7360 case PCI_DEVICE_ID_TIGERSHARK: 7361 case PCI_DEVICE_ID_TOMCAT: 7362 phba->hba_flag |= HBA_FCOE_MODE; 7363 break; 7364 default: 7365 /* for others, clear the flag */ 7366 phba->hba_flag &= ~HBA_FCOE_MODE; 7367 } 7368 } 7369 7370 /** 7371 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7372 * @phba: lpfc_hba pointer. 7373 **/ 7374 void 7375 lpfc_get_cfgparam(struct lpfc_hba *phba) 7376 { 7377 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7378 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7379 lpfc_ns_query_init(phba, lpfc_ns_query); 7380 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7381 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7382 lpfc_cr_count_init(phba, lpfc_cr_count); 7383 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7384 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7385 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7386 lpfc_ack0_init(phba, lpfc_ack0); 7387 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7388 lpfc_topology_init(phba, lpfc_topology); 7389 lpfc_link_speed_init(phba, lpfc_link_speed); 7390 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7391 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7392 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7393 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7394 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7395 lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); 7396 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7397 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7398 lpfc_use_msi_init(phba, lpfc_use_msi); 7399 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7400 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7401 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7402 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7403 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7404 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7405 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7406 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7407 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7408 7409 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7410 /* VMID Inits */ 7411 lpfc_max_vmid_init(phba, lpfc_max_vmid); 7412 lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); 7413 lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); 7414 lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); 7415 if (phba->sli_rev != LPFC_SLI_REV4) 7416 phba->cfg_EnableXLane = 0; 7417 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7418 7419 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7420 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7421 phba->cfg_oas_lun_state = 0; 7422 phba->cfg_oas_lun_status = 0; 7423 phba->cfg_oas_flags = 0; 7424 phba->cfg_oas_priority = 0; 7425 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7426 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7427 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7428 if (phba->sli_rev == LPFC_SLI_REV4) 7429 phba->cfg_poll = 0; 7430 else 7431 phba->cfg_poll = lpfc_poll; 7432 7433 /* Get the function mode */ 7434 lpfc_get_hba_function_mode(phba); 7435 7436 /* BlockGuard allowed for FC only. */ 7437 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7439 "0581 BlockGuard feature not supported\n"); 7440 /* If set, clear the BlockGuard support param */ 7441 phba->cfg_enable_bg = 0; 7442 } else if (phba->cfg_enable_bg) { 7443 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7444 } 7445 7446 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7447 7448 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7449 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7450 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7451 7452 /* Initialize first burst. Target vs Initiator are different. */ 7453 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7454 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7455 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7456 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7457 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7458 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7459 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7460 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7461 7462 if (phba->sli_rev != LPFC_SLI_REV4) { 7463 /* NVME only supported on SLI4 */ 7464 phba->nvmet_support = 0; 7465 phba->cfg_nvmet_mrq = 0; 7466 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7467 phba->cfg_enable_bbcr = 0; 7468 phba->cfg_xri_rebalancing = 0; 7469 } else { 7470 /* We MUST have FCP support */ 7471 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7472 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7473 } 7474 7475 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7476 7477 phba->cfg_enable_pbde = 0; 7478 7479 /* A value of 0 means use the number of CPUs found in the system */ 7480 if (phba->cfg_hdw_queue == 0) 7481 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7482 if (phba->cfg_irq_chann == 0) 7483 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7484 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7485 phba->sli_rev == LPFC_SLI_REV4) 7486 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7487 7488 phba->cfg_soft_wwnn = 0L; 7489 phba->cfg_soft_wwpn = 0L; 7490 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7491 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7492 lpfc_aer_support_init(phba, lpfc_aer_support); 7493 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7494 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7495 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7496 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7497 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7498 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7499 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7500 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7501 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7502 7503 return; 7504 } 7505 7506 /** 7507 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7508 * dependencies between protocols and roles. 7509 * @phba: lpfc_hba pointer. 7510 **/ 7511 void 7512 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7513 { 7514 int logit = 0; 7515 7516 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7517 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7518 logit = 1; 7519 } 7520 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7521 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7522 logit = 1; 7523 } 7524 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7525 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7526 logit = 1; 7527 } 7528 if (logit) 7529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7530 "2006 Reducing Queues - CPU limitation: " 7531 "IRQ %d HDWQ %d\n", 7532 phba->cfg_irq_chann, 7533 phba->cfg_hdw_queue); 7534 7535 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7536 phba->nvmet_support) { 7537 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7538 7539 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7540 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7541 "NVME Target PRLI ACC enable_fb ", 7542 phba->cfg_nvme_enable_fb, 7543 phba->cfg_nvmet_fb_size, 7544 LPFC_NVMET_FB_SZ_MAX); 7545 7546 if (phba->cfg_nvme_enable_fb == 0) 7547 phba->cfg_nvmet_fb_size = 0; 7548 else { 7549 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7550 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7551 } 7552 7553 if (!phba->cfg_nvmet_mrq) 7554 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7555 7556 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7557 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7558 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7559 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7560 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7561 phba->cfg_nvmet_mrq); 7562 } 7563 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7564 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7565 7566 } else { 7567 /* Not NVME Target mode. Turn off Target parameters. */ 7568 phba->nvmet_support = 0; 7569 phba->cfg_nvmet_mrq = 0; 7570 phba->cfg_nvmet_fb_size = 0; 7571 } 7572 } 7573 7574 /** 7575 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7576 * @vport: lpfc_vport pointer. 7577 **/ 7578 void 7579 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7580 { 7581 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7582 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7583 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7584 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7585 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7586 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7587 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7588 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7589 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7590 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7591 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7592 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7593 lpfc_max_luns_init(vport, lpfc_max_luns); 7594 lpfc_scan_down_init(vport, lpfc_scan_down); 7595 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7596 return; 7597 } 7598