1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2020 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_err), 491 atomic_read(&lport->xmt_fcp_wqerr)); 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 - 516 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1), 517 LPFC_NVME_INFO_MORE_STR, 518 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) 519 + 1); 520 } 521 522 return len; 523 } 524 525 static ssize_t 526 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 527 char *buf) 528 { 529 struct Scsi_Host *shost = class_to_shost(dev); 530 struct lpfc_vport *vport = shost_priv(shost); 531 struct lpfc_hba *phba = vport->phba; 532 int len; 533 struct lpfc_fc4_ctrl_stat *cstat; 534 u64 data1, data2, data3; 535 u64 tot, totin, totout; 536 int i; 537 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 538 539 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 540 (phba->sli_rev != LPFC_SLI_REV4)) 541 return 0; 542 543 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 544 545 totin = 0; 546 totout = 0; 547 for (i = 0; i < phba->cfg_hdw_queue; i++) { 548 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 549 tot = cstat->io_cmpls; 550 totin += tot; 551 data1 = cstat->input_requests; 552 data2 = cstat->output_requests; 553 data3 = cstat->control_requests; 554 totout += (data1 + data2 + data3); 555 556 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 557 "IO %016llx ", i, data1, data2, data3); 558 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 559 goto buffer_done; 560 561 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 562 tot, ((data1 + data2 + data3) - tot)); 563 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 564 goto buffer_done; 565 } 566 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 567 "OutIO %016llx\n", totin, totout, totout - totin); 568 strlcat(buf, tmp, PAGE_SIZE); 569 570 buffer_done: 571 len = strnlen(buf, PAGE_SIZE); 572 573 return len; 574 } 575 576 static ssize_t 577 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 578 char *buf) 579 { 580 struct Scsi_Host *shost = class_to_shost(dev); 581 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 582 struct lpfc_hba *phba = vport->phba; 583 584 if (phba->cfg_enable_bg) { 585 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 586 return scnprintf(buf, PAGE_SIZE, 587 "BlockGuard Enabled\n"); 588 else 589 return scnprintf(buf, PAGE_SIZE, 590 "BlockGuard Not Supported\n"); 591 } else 592 return scnprintf(buf, PAGE_SIZE, 593 "BlockGuard Disabled\n"); 594 } 595 596 static ssize_t 597 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 598 char *buf) 599 { 600 struct Scsi_Host *shost = class_to_shost(dev); 601 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 602 struct lpfc_hba *phba = vport->phba; 603 604 return scnprintf(buf, PAGE_SIZE, "%llu\n", 605 (unsigned long long)phba->bg_guard_err_cnt); 606 } 607 608 static ssize_t 609 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 610 char *buf) 611 { 612 struct Scsi_Host *shost = class_to_shost(dev); 613 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 614 struct lpfc_hba *phba = vport->phba; 615 616 return scnprintf(buf, PAGE_SIZE, "%llu\n", 617 (unsigned long long)phba->bg_apptag_err_cnt); 618 } 619 620 static ssize_t 621 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 622 char *buf) 623 { 624 struct Scsi_Host *shost = class_to_shost(dev); 625 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 626 struct lpfc_hba *phba = vport->phba; 627 628 return scnprintf(buf, PAGE_SIZE, "%llu\n", 629 (unsigned long long)phba->bg_reftag_err_cnt); 630 } 631 632 /** 633 * lpfc_info_show - Return some pci info about the host in ascii 634 * @dev: class converted to a Scsi_host structure. 635 * @attr: device attribute, not used. 636 * @buf: on return contains the formatted text from lpfc_info(). 637 * 638 * Returns: size of formatted string. 639 **/ 640 static ssize_t 641 lpfc_info_show(struct device *dev, struct device_attribute *attr, 642 char *buf) 643 { 644 struct Scsi_Host *host = class_to_shost(dev); 645 646 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 647 } 648 649 /** 650 * lpfc_serialnum_show - Return the hba serial number in ascii 651 * @dev: class converted to a Scsi_host structure. 652 * @attr: device attribute, not used. 653 * @buf: on return contains the formatted text serial number. 654 * 655 * Returns: size of formatted string. 656 **/ 657 static ssize_t 658 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 659 char *buf) 660 { 661 struct Scsi_Host *shost = class_to_shost(dev); 662 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 663 struct lpfc_hba *phba = vport->phba; 664 665 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 666 } 667 668 /** 669 * lpfc_temp_sensor_show - Return the temperature sensor level 670 * @dev: class converted to a Scsi_host structure. 671 * @attr: device attribute, not used. 672 * @buf: on return contains the formatted support level. 673 * 674 * Description: 675 * Returns a number indicating the temperature sensor level currently 676 * supported, zero or one in ascii. 677 * 678 * Returns: size of formatted string. 679 **/ 680 static ssize_t 681 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 682 char *buf) 683 { 684 struct Scsi_Host *shost = class_to_shost(dev); 685 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 686 struct lpfc_hba *phba = vport->phba; 687 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 688 } 689 690 /** 691 * lpfc_modeldesc_show - Return the model description of the hba 692 * @dev: class converted to a Scsi_host structure. 693 * @attr: device attribute, not used. 694 * @buf: on return contains the scsi vpd model description. 695 * 696 * Returns: size of formatted string. 697 **/ 698 static ssize_t 699 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 700 char *buf) 701 { 702 struct Scsi_Host *shost = class_to_shost(dev); 703 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 704 struct lpfc_hba *phba = vport->phba; 705 706 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 707 } 708 709 /** 710 * lpfc_modelname_show - Return the model name of the hba 711 * @dev: class converted to a Scsi_host structure. 712 * @attr: device attribute, not used. 713 * @buf: on return contains the scsi vpd model name. 714 * 715 * Returns: size of formatted string. 716 **/ 717 static ssize_t 718 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 719 char *buf) 720 { 721 struct Scsi_Host *shost = class_to_shost(dev); 722 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 723 struct lpfc_hba *phba = vport->phba; 724 725 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 726 } 727 728 /** 729 * lpfc_programtype_show - Return the program type of the hba 730 * @dev: class converted to a Scsi_host structure. 731 * @attr: device attribute, not used. 732 * @buf: on return contains the scsi vpd program type. 733 * 734 * Returns: size of formatted string. 735 **/ 736 static ssize_t 737 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 738 char *buf) 739 { 740 struct Scsi_Host *shost = class_to_shost(dev); 741 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 742 struct lpfc_hba *phba = vport->phba; 743 744 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 745 } 746 747 /** 748 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 749 * @dev: class converted to a Scsi_host structure. 750 * @attr: device attribute, not used. 751 * @buf: on return contains the Menlo Maintenance sli flag. 752 * 753 * Returns: size of formatted string. 754 **/ 755 static ssize_t 756 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 757 { 758 struct Scsi_Host *shost = class_to_shost(dev); 759 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 760 struct lpfc_hba *phba = vport->phba; 761 762 return scnprintf(buf, PAGE_SIZE, "%d\n", 763 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 764 } 765 766 /** 767 * lpfc_vportnum_show - Return the port number in ascii of the hba 768 * @dev: class converted to a Scsi_host structure. 769 * @attr: device attribute, not used. 770 * @buf: on return contains scsi vpd program type. 771 * 772 * Returns: size of formatted string. 773 **/ 774 static ssize_t 775 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 776 char *buf) 777 { 778 struct Scsi_Host *shost = class_to_shost(dev); 779 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 780 struct lpfc_hba *phba = vport->phba; 781 782 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 783 } 784 785 /** 786 * lpfc_fwrev_show - Return the firmware rev running in the hba 787 * @dev: class converted to a Scsi_host structure. 788 * @attr: device attribute, not used. 789 * @buf: on return contains the scsi vpd program type. 790 * 791 * Returns: size of formatted string. 792 **/ 793 static ssize_t 794 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 795 char *buf) 796 { 797 struct Scsi_Host *shost = class_to_shost(dev); 798 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 799 struct lpfc_hba *phba = vport->phba; 800 uint32_t if_type; 801 uint8_t sli_family; 802 char fwrev[FW_REV_STR_SIZE]; 803 int len; 804 805 lpfc_decode_firmware_rev(phba, fwrev, 1); 806 if_type = phba->sli4_hba.pc_sli4_params.if_type; 807 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 808 809 if (phba->sli_rev < LPFC_SLI_REV4) 810 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 811 fwrev, phba->sli_rev); 812 else 813 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 814 fwrev, phba->sli_rev, if_type, sli_family); 815 816 return len; 817 } 818 819 /** 820 * lpfc_hdw_show - Return the jedec information about the hba 821 * @dev: class converted to a Scsi_host structure. 822 * @attr: device attribute, not used. 823 * @buf: on return contains the scsi vpd program type. 824 * 825 * Returns: size of formatted string. 826 **/ 827 static ssize_t 828 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 829 { 830 char hdw[9]; 831 struct Scsi_Host *shost = class_to_shost(dev); 832 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 833 struct lpfc_hba *phba = vport->phba; 834 lpfc_vpd_t *vp = &phba->vpd; 835 836 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 837 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 838 vp->rev.smRev, vp->rev.smFwRev); 839 } 840 841 /** 842 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 843 * @dev: class converted to a Scsi_host structure. 844 * @attr: device attribute, not used. 845 * @buf: on return contains the ROM and FCode ascii strings. 846 * 847 * Returns: size of formatted string. 848 **/ 849 static ssize_t 850 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 851 char *buf) 852 { 853 struct Scsi_Host *shost = class_to_shost(dev); 854 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 855 struct lpfc_hba *phba = vport->phba; 856 char fwrev[FW_REV_STR_SIZE]; 857 858 if (phba->sli_rev < LPFC_SLI_REV4) 859 return scnprintf(buf, PAGE_SIZE, "%s\n", 860 phba->OptionROMVersion); 861 862 lpfc_decode_firmware_rev(phba, fwrev, 1); 863 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 864 } 865 866 /** 867 * lpfc_state_show - Return the link state of the port 868 * @dev: class converted to a Scsi_host structure. 869 * @attr: device attribute, not used. 870 * @buf: on return contains text describing the state of the link. 871 * 872 * Notes: 873 * The switch statement has no default so zero will be returned. 874 * 875 * Returns: size of formatted string. 876 **/ 877 static ssize_t 878 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 879 char *buf) 880 { 881 struct Scsi_Host *shost = class_to_shost(dev); 882 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 883 struct lpfc_hba *phba = vport->phba; 884 int len = 0; 885 886 switch (phba->link_state) { 887 case LPFC_LINK_UNKNOWN: 888 case LPFC_WARM_START: 889 case LPFC_INIT_START: 890 case LPFC_INIT_MBX_CMDS: 891 case LPFC_LINK_DOWN: 892 case LPFC_HBA_ERROR: 893 if (phba->hba_flag & LINK_DISABLED) 894 len += scnprintf(buf + len, PAGE_SIZE-len, 895 "Link Down - User disabled\n"); 896 else 897 len += scnprintf(buf + len, PAGE_SIZE-len, 898 "Link Down\n"); 899 break; 900 case LPFC_LINK_UP: 901 case LPFC_CLEAR_LA: 902 case LPFC_HBA_READY: 903 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 904 905 switch (vport->port_state) { 906 case LPFC_LOCAL_CFG_LINK: 907 len += scnprintf(buf + len, PAGE_SIZE-len, 908 "Configuring Link\n"); 909 break; 910 case LPFC_FDISC: 911 case LPFC_FLOGI: 912 case LPFC_FABRIC_CFG_LINK: 913 case LPFC_NS_REG: 914 case LPFC_NS_QRY: 915 case LPFC_BUILD_DISC_LIST: 916 case LPFC_DISC_AUTH: 917 len += scnprintf(buf + len, PAGE_SIZE - len, 918 "Discovery\n"); 919 break; 920 case LPFC_VPORT_READY: 921 len += scnprintf(buf + len, PAGE_SIZE - len, 922 "Ready\n"); 923 break; 924 925 case LPFC_VPORT_FAILED: 926 len += scnprintf(buf + len, PAGE_SIZE - len, 927 "Failed\n"); 928 break; 929 930 case LPFC_VPORT_UNKNOWN: 931 len += scnprintf(buf + len, PAGE_SIZE - len, 932 "Unknown\n"); 933 break; 934 } 935 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 936 len += scnprintf(buf + len, PAGE_SIZE-len, 937 " Menlo Maint Mode\n"); 938 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 939 if (vport->fc_flag & FC_PUBLIC_LOOP) 940 len += scnprintf(buf + len, PAGE_SIZE-len, 941 " Public Loop\n"); 942 else 943 len += scnprintf(buf + len, PAGE_SIZE-len, 944 " Private Loop\n"); 945 } else { 946 if (vport->fc_flag & FC_FABRIC) 947 len += scnprintf(buf + len, PAGE_SIZE-len, 948 " Fabric\n"); 949 else 950 len += scnprintf(buf + len, PAGE_SIZE-len, 951 " Point-2-Point\n"); 952 } 953 } 954 955 if ((phba->sli_rev == LPFC_SLI_REV4) && 956 ((bf_get(lpfc_sli_intf_if_type, 957 &phba->sli4_hba.sli_intf) == 958 LPFC_SLI_INTF_IF_TYPE_6))) { 959 struct lpfc_trunk_link link = phba->trunk_link; 960 961 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 962 len += scnprintf(buf + len, PAGE_SIZE - len, 963 "Trunk port 0: Link %s %s\n", 964 (link.link0.state == LPFC_LINK_UP) ? 965 "Up" : "Down. ", 966 trunk_errmsg[link.link0.fault]); 967 968 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 969 len += scnprintf(buf + len, PAGE_SIZE - len, 970 "Trunk port 1: Link %s %s\n", 971 (link.link1.state == LPFC_LINK_UP) ? 972 "Up" : "Down. ", 973 trunk_errmsg[link.link1.fault]); 974 975 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 976 len += scnprintf(buf + len, PAGE_SIZE - len, 977 "Trunk port 2: Link %s %s\n", 978 (link.link2.state == LPFC_LINK_UP) ? 979 "Up" : "Down. ", 980 trunk_errmsg[link.link2.fault]); 981 982 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 983 len += scnprintf(buf + len, PAGE_SIZE - len, 984 "Trunk port 3: Link %s %s\n", 985 (link.link3.state == LPFC_LINK_UP) ? 986 "Up" : "Down. ", 987 trunk_errmsg[link.link3.fault]); 988 989 } 990 991 return len; 992 } 993 994 /** 995 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 996 * @dev: class unused variable. 997 * @attr: device attribute, not used. 998 * @buf: on return contains the module description text. 999 * 1000 * Returns: size of formatted string. 1001 **/ 1002 static ssize_t 1003 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1004 char *buf) 1005 { 1006 struct Scsi_Host *shost = class_to_shost(dev); 1007 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1008 struct lpfc_hba *phba = vport->phba; 1009 1010 if (phba->sli_rev < LPFC_SLI_REV4) 1011 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1012 1013 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1014 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1015 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1016 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1017 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1018 } 1019 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1020 } 1021 1022 /** 1023 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1024 * (OAS) is supported. 1025 * @dev: class unused variable. 1026 * @attr: device attribute, not used. 1027 * @buf: on return contains the module description text. 1028 * 1029 * Returns: size of formatted string. 1030 **/ 1031 static ssize_t 1032 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1033 char *buf) 1034 { 1035 struct Scsi_Host *shost = class_to_shost(dev); 1036 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1037 struct lpfc_hba *phba = vport->phba; 1038 1039 return scnprintf(buf, PAGE_SIZE, "%d\n", 1040 phba->sli4_hba.pc_sli4_params.oas_supported); 1041 } 1042 1043 /** 1044 * lpfc_link_state_store - Transition the link_state on an HBA port 1045 * @dev: class device that is converted into a Scsi_host. 1046 * @attr: device attribute, not used. 1047 * @buf: one or more lpfc_polling_flags values. 1048 * @count: not used. 1049 * 1050 * Returns: 1051 * -EINVAL if the buffer is not "up" or "down" 1052 * return from link state change function if non-zero 1053 * length of the buf on success 1054 **/ 1055 static ssize_t 1056 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1057 const char *buf, size_t count) 1058 { 1059 struct Scsi_Host *shost = class_to_shost(dev); 1060 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1061 struct lpfc_hba *phba = vport->phba; 1062 1063 int status = -EINVAL; 1064 1065 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1066 (phba->link_state == LPFC_LINK_DOWN)) 1067 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1068 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1069 (phba->link_state >= LPFC_LINK_UP)) 1070 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1071 1072 if (status == 0) 1073 return strlen(buf); 1074 else 1075 return status; 1076 } 1077 1078 /** 1079 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1080 * @dev: class device that is converted into a Scsi_host. 1081 * @attr: device attribute, not used. 1082 * @buf: on return contains the sum of fc mapped and unmapped. 1083 * 1084 * Description: 1085 * Returns the ascii text number of the sum of the fc mapped and unmapped 1086 * vport counts. 1087 * 1088 * Returns: size of formatted string. 1089 **/ 1090 static ssize_t 1091 lpfc_num_discovered_ports_show(struct device *dev, 1092 struct device_attribute *attr, char *buf) 1093 { 1094 struct Scsi_Host *shost = class_to_shost(dev); 1095 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1096 1097 return scnprintf(buf, PAGE_SIZE, "%d\n", 1098 vport->fc_map_cnt + vport->fc_unmap_cnt); 1099 } 1100 1101 /** 1102 * lpfc_issue_lip - Misnomer, name carried over from long ago 1103 * @shost: Scsi_Host pointer. 1104 * 1105 * Description: 1106 * Bring the link down gracefully then re-init the link. The firmware will 1107 * re-init the fiber channel interface as required. Does not issue a LIP. 1108 * 1109 * Returns: 1110 * -EPERM port offline or management commands are being blocked 1111 * -ENOMEM cannot allocate memory for the mailbox command 1112 * -EIO error sending the mailbox command 1113 * zero for success 1114 **/ 1115 static int 1116 lpfc_issue_lip(struct Scsi_Host *shost) 1117 { 1118 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1119 struct lpfc_hba *phba = vport->phba; 1120 LPFC_MBOXQ_t *pmboxq; 1121 int mbxstatus = MBXERR_ERROR; 1122 1123 /* 1124 * If the link is offline, disabled or BLOCK_MGMT_IO 1125 * it doesn't make any sense to allow issue_lip 1126 */ 1127 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1128 (phba->hba_flag & LINK_DISABLED) || 1129 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1130 return -EPERM; 1131 1132 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1133 1134 if (!pmboxq) 1135 return -ENOMEM; 1136 1137 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1138 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1139 pmboxq->u.mb.mbxOwner = OWN_HOST; 1140 1141 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1142 1143 if ((mbxstatus == MBX_SUCCESS) && 1144 (pmboxq->u.mb.mbxStatus == 0 || 1145 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1146 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1147 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1148 phba->cfg_link_speed); 1149 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1150 phba->fc_ratov * 2); 1151 if ((mbxstatus == MBX_SUCCESS) && 1152 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1153 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1154 "2859 SLI authentication is required " 1155 "for INIT_LINK but has not done yet\n"); 1156 } 1157 1158 lpfc_set_loopback_flag(phba); 1159 if (mbxstatus != MBX_TIMEOUT) 1160 mempool_free(pmboxq, phba->mbox_mem_pool); 1161 1162 if (mbxstatus == MBXERR_ERROR) 1163 return -EIO; 1164 1165 return 0; 1166 } 1167 1168 int 1169 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1170 { 1171 int cnt = 0; 1172 1173 spin_lock_irq(lock); 1174 while (!list_empty(q)) { 1175 spin_unlock_irq(lock); 1176 msleep(20); 1177 if (cnt++ > 250) { /* 5 secs */ 1178 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1179 "0466 %s %s\n", 1180 "Outstanding IO when ", 1181 "bringing Adapter offline\n"); 1182 return 0; 1183 } 1184 spin_lock_irq(lock); 1185 } 1186 spin_unlock_irq(lock); 1187 return 1; 1188 } 1189 1190 /** 1191 * lpfc_do_offline - Issues a mailbox command to bring the link down 1192 * @phba: lpfc_hba pointer. 1193 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1194 * 1195 * Notes: 1196 * Assumes any error from lpfc_do_offline() will be negative. 1197 * Can wait up to 5 seconds for the port ring buffers count 1198 * to reach zero, prints a warning if it is not zero and continues. 1199 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1200 * 1201 * Returns: 1202 * -EIO error posting the event 1203 * zero for success 1204 **/ 1205 static int 1206 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1207 { 1208 struct completion online_compl; 1209 struct lpfc_queue *qp = NULL; 1210 struct lpfc_sli_ring *pring; 1211 struct lpfc_sli *psli; 1212 int status = 0; 1213 int i; 1214 int rc; 1215 1216 init_completion(&online_compl); 1217 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1218 LPFC_EVT_OFFLINE_PREP); 1219 if (rc == 0) 1220 return -ENOMEM; 1221 1222 wait_for_completion(&online_compl); 1223 1224 if (status != 0) 1225 return -EIO; 1226 1227 psli = &phba->sli; 1228 1229 /* 1230 * If freeing the queues have already started, don't access them. 1231 * Otherwise set FREE_WAIT to indicate that queues are being used 1232 * to hold the freeing process until we finish. 1233 */ 1234 spin_lock_irq(&phba->hbalock); 1235 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1236 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1237 } else { 1238 spin_unlock_irq(&phba->hbalock); 1239 goto skip_wait; 1240 } 1241 spin_unlock_irq(&phba->hbalock); 1242 1243 /* Wait a little for things to settle down, but not 1244 * long enough for dev loss timeout to expire. 1245 */ 1246 if (phba->sli_rev != LPFC_SLI_REV4) { 1247 for (i = 0; i < psli->num_rings; i++) { 1248 pring = &psli->sli3_ring[i]; 1249 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1250 &phba->hbalock)) 1251 goto out; 1252 } 1253 } else { 1254 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1255 pring = qp->pring; 1256 if (!pring) 1257 continue; 1258 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1259 &pring->ring_lock)) 1260 goto out; 1261 } 1262 } 1263 out: 1264 spin_lock_irq(&phba->hbalock); 1265 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1266 spin_unlock_irq(&phba->hbalock); 1267 1268 skip_wait: 1269 init_completion(&online_compl); 1270 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1271 if (rc == 0) 1272 return -ENOMEM; 1273 1274 wait_for_completion(&online_compl); 1275 1276 if (status != 0) 1277 return -EIO; 1278 1279 return 0; 1280 } 1281 1282 /** 1283 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1284 * @phba: lpfc_hba pointer. 1285 * 1286 * Description: 1287 * Issues a PCI secondary bus reset for the phba->pcidev. 1288 * 1289 * Notes: 1290 * First walks the bus_list to ensure only PCI devices with Emulex 1291 * vendor id, device ids that support hot reset, only one occurrence 1292 * of function 0, and all ports on the bus are in offline mode to ensure the 1293 * hot reset only affects one valid HBA. 1294 * 1295 * Returns: 1296 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1297 * -ENODEV, NULL ptr to pcidev 1298 * -EBADSLT, detected invalid device 1299 * -EBUSY, port is not in offline state 1300 * 0, successful 1301 */ 1302 static int 1303 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1304 { 1305 struct pci_dev *pdev = phba->pcidev; 1306 struct Scsi_Host *shost = NULL; 1307 struct lpfc_hba *phba_other = NULL; 1308 struct pci_dev *ptr = NULL; 1309 int res; 1310 1311 if (phba->cfg_enable_hba_reset != 2) 1312 return -ENOTSUPP; 1313 1314 if (!pdev) { 1315 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1316 return -ENODEV; 1317 } 1318 1319 res = lpfc_check_pci_resettable(phba); 1320 if (res) 1321 return res; 1322 1323 /* Walk the list of devices on the pci_dev's bus */ 1324 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1325 /* Check port is offline */ 1326 shost = pci_get_drvdata(ptr); 1327 if (shost) { 1328 phba_other = 1329 ((struct lpfc_vport *)shost->hostdata)->phba; 1330 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1331 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1332 "8349 WWPN = 0x%02x%02x%02x%02x" 1333 "%02x%02x%02x%02x is not " 1334 "offline!\n", 1335 phba_other->wwpn[0], 1336 phba_other->wwpn[1], 1337 phba_other->wwpn[2], 1338 phba_other->wwpn[3], 1339 phba_other->wwpn[4], 1340 phba_other->wwpn[5], 1341 phba_other->wwpn[6], 1342 phba_other->wwpn[7]); 1343 return -EBUSY; 1344 } 1345 } 1346 } 1347 1348 /* Issue PCI bus reset */ 1349 res = pci_reset_bus(pdev); 1350 if (res) { 1351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1352 "8350 PCI reset bus failed: %d\n", res); 1353 } 1354 1355 return res; 1356 } 1357 1358 /** 1359 * lpfc_selective_reset - Offline then onlines the port 1360 * @phba: lpfc_hba pointer. 1361 * 1362 * Description: 1363 * If the port is configured to allow a reset then the hba is brought 1364 * offline then online. 1365 * 1366 * Notes: 1367 * Assumes any error from lpfc_do_offline() will be negative. 1368 * Do not make this function static. 1369 * 1370 * Returns: 1371 * lpfc_do_offline() return code if not zero 1372 * -EIO reset not configured or error posting the event 1373 * zero for success 1374 **/ 1375 int 1376 lpfc_selective_reset(struct lpfc_hba *phba) 1377 { 1378 struct completion online_compl; 1379 int status = 0; 1380 int rc; 1381 1382 if (!phba->cfg_enable_hba_reset) 1383 return -EACCES; 1384 1385 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1386 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1387 1388 if (status != 0) 1389 return status; 1390 } 1391 1392 init_completion(&online_compl); 1393 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1394 LPFC_EVT_ONLINE); 1395 if (rc == 0) 1396 return -ENOMEM; 1397 1398 wait_for_completion(&online_compl); 1399 1400 if (status != 0) 1401 return -EIO; 1402 1403 return 0; 1404 } 1405 1406 /** 1407 * lpfc_issue_reset - Selectively resets an adapter 1408 * @dev: class device that is converted into a Scsi_host. 1409 * @attr: device attribute, not used. 1410 * @buf: containing the string "selective". 1411 * @count: unused variable. 1412 * 1413 * Description: 1414 * If the buf contains the string "selective" then lpfc_selective_reset() 1415 * is called to perform the reset. 1416 * 1417 * Notes: 1418 * Assumes any error from lpfc_selective_reset() will be negative. 1419 * If lpfc_selective_reset() returns zero then the length of the buffer 1420 * is returned which indicates success 1421 * 1422 * Returns: 1423 * -EINVAL if the buffer does not contain the string "selective" 1424 * length of buf if lpfc-selective_reset() if the call succeeds 1425 * return value of lpfc_selective_reset() if the call fails 1426 **/ 1427 static ssize_t 1428 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1429 const char *buf, size_t count) 1430 { 1431 struct Scsi_Host *shost = class_to_shost(dev); 1432 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1433 struct lpfc_hba *phba = vport->phba; 1434 int status = -EINVAL; 1435 1436 if (!phba->cfg_enable_hba_reset) 1437 return -EACCES; 1438 1439 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1440 status = phba->lpfc_selective_reset(phba); 1441 1442 if (status == 0) 1443 return strlen(buf); 1444 else 1445 return status; 1446 } 1447 1448 /** 1449 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1450 * @phba: lpfc_hba pointer. 1451 * 1452 * Description: 1453 * SLI4 interface type-2 device to wait on the sliport status register for 1454 * the readyness after performing a firmware reset. 1455 * 1456 * Returns: 1457 * zero for success, -EPERM when port does not have privilege to perform the 1458 * reset, -EIO when port timeout from recovering from the reset. 1459 * 1460 * Note: 1461 * As the caller will interpret the return code by value, be careful in making 1462 * change or addition to return codes. 1463 **/ 1464 int 1465 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1466 { 1467 struct lpfc_register portstat_reg = {0}; 1468 int i; 1469 1470 msleep(100); 1471 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1472 &portstat_reg.word0)) 1473 return -EIO; 1474 1475 /* verify if privileged for the request operation */ 1476 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1477 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1478 return -EPERM; 1479 1480 /* wait for the SLI port firmware ready after firmware reset */ 1481 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1482 msleep(10); 1483 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1484 &portstat_reg.word0)) 1485 continue; 1486 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1487 continue; 1488 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1489 continue; 1490 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1491 continue; 1492 break; 1493 } 1494 1495 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1496 return 0; 1497 else 1498 return -EIO; 1499 } 1500 1501 /** 1502 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1503 * @phba: lpfc_hba pointer. 1504 * @opcode: The sli4 config command opcode. 1505 * 1506 * Description: 1507 * Request SLI4 interface type-2 device to perform a physical register set 1508 * access. 1509 * 1510 * Returns: 1511 * zero for success 1512 **/ 1513 static ssize_t 1514 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1515 { 1516 struct completion online_compl; 1517 struct pci_dev *pdev = phba->pcidev; 1518 uint32_t before_fc_flag; 1519 uint32_t sriov_nr_virtfn; 1520 uint32_t reg_val; 1521 int status = 0, rc = 0; 1522 int job_posted = 1, sriov_err; 1523 1524 if (!phba->cfg_enable_hba_reset) 1525 return -EACCES; 1526 1527 if ((phba->sli_rev < LPFC_SLI_REV4) || 1528 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1529 LPFC_SLI_INTF_IF_TYPE_2)) 1530 return -EPERM; 1531 1532 /* Keep state if we need to restore back */ 1533 before_fc_flag = phba->pport->fc_flag; 1534 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1535 1536 /* Disable SR-IOV virtual functions if enabled */ 1537 if (phba->cfg_sriov_nr_virtfn) { 1538 pci_disable_sriov(pdev); 1539 phba->cfg_sriov_nr_virtfn = 0; 1540 } 1541 1542 if (opcode == LPFC_FW_DUMP) 1543 phba->hba_flag |= HBA_FW_DUMP_OP; 1544 1545 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1546 1547 if (status != 0) { 1548 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1549 return status; 1550 } 1551 1552 /* wait for the device to be quiesced before firmware reset */ 1553 msleep(100); 1554 1555 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1556 LPFC_CTL_PDEV_CTL_OFFSET); 1557 1558 if (opcode == LPFC_FW_DUMP) 1559 reg_val |= LPFC_FW_DUMP_REQUEST; 1560 else if (opcode == LPFC_FW_RESET) 1561 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1562 else if (opcode == LPFC_DV_RESET) 1563 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1564 1565 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1566 LPFC_CTL_PDEV_CTL_OFFSET); 1567 /* flush */ 1568 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1569 1570 /* delay driver action following IF_TYPE_2 reset */ 1571 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1572 1573 if (rc == -EPERM) { 1574 /* no privilege for reset */ 1575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1576 "3150 No privilege to perform the requested " 1577 "access: x%x\n", reg_val); 1578 } else if (rc == -EIO) { 1579 /* reset failed, there is nothing more we can do */ 1580 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1581 "3153 Fail to perform the requested " 1582 "access: x%x\n", reg_val); 1583 return rc; 1584 } 1585 1586 /* keep the original port state */ 1587 if (before_fc_flag & FC_OFFLINE_MODE) 1588 goto out; 1589 1590 init_completion(&online_compl); 1591 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1592 LPFC_EVT_ONLINE); 1593 if (!job_posted) 1594 goto out; 1595 1596 wait_for_completion(&online_compl); 1597 1598 out: 1599 /* in any case, restore the virtual functions enabled as before */ 1600 if (sriov_nr_virtfn) { 1601 sriov_err = 1602 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1603 if (!sriov_err) 1604 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1605 } 1606 1607 /* return proper error code */ 1608 if (!rc) { 1609 if (!job_posted) 1610 rc = -ENOMEM; 1611 else if (status) 1612 rc = -EIO; 1613 } 1614 return rc; 1615 } 1616 1617 /** 1618 * lpfc_nport_evt_cnt_show - Return the number of nport events 1619 * @dev: class device that is converted into a Scsi_host. 1620 * @attr: device attribute, not used. 1621 * @buf: on return contains the ascii number of nport events. 1622 * 1623 * Returns: size of formatted string. 1624 **/ 1625 static ssize_t 1626 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1627 char *buf) 1628 { 1629 struct Scsi_Host *shost = class_to_shost(dev); 1630 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1631 struct lpfc_hba *phba = vport->phba; 1632 1633 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1634 } 1635 1636 static int 1637 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1638 { 1639 LPFC_MBOXQ_t *mbox = NULL; 1640 unsigned long val = 0; 1641 char *pval = NULL; 1642 int rc = 0; 1643 1644 if (!strncmp("enable", buff_out, 1645 strlen("enable"))) { 1646 pval = buff_out + strlen("enable") + 1; 1647 rc = kstrtoul(pval, 0, &val); 1648 if (rc) 1649 return rc; /* Invalid number */ 1650 } else if (!strncmp("disable", buff_out, 1651 strlen("disable"))) { 1652 val = 0; 1653 } else { 1654 return -EINVAL; /* Invalid command */ 1655 } 1656 1657 switch (val) { 1658 case 0: 1659 val = 0x0; /* Disable */ 1660 break; 1661 case 2: 1662 val = 0x1; /* Enable two port trunk */ 1663 break; 1664 case 4: 1665 val = 0x2; /* Enable four port trunk */ 1666 break; 1667 default: 1668 return -EINVAL; 1669 } 1670 1671 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1672 "0070 Set trunk mode with val %ld ", val); 1673 1674 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1675 if (!mbox) 1676 return -ENOMEM; 1677 1678 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1679 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1680 12, LPFC_SLI4_MBX_EMBED); 1681 1682 bf_set(lpfc_mbx_set_trunk_mode, 1683 &mbox->u.mqe.un.set_trunk_mode, 1684 val); 1685 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1686 if (rc) 1687 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1688 "0071 Set trunk mode failed with status: %d", 1689 rc); 1690 if (rc != MBX_TIMEOUT) 1691 mempool_free(mbox, phba->mbox_mem_pool); 1692 1693 return 0; 1694 } 1695 1696 /** 1697 * lpfc_board_mode_show - Return the state of the board 1698 * @dev: class device that is converted into a Scsi_host. 1699 * @attr: device attribute, not used. 1700 * @buf: on return contains the state of the adapter. 1701 * 1702 * Returns: size of formatted string. 1703 **/ 1704 static ssize_t 1705 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1706 char *buf) 1707 { 1708 struct Scsi_Host *shost = class_to_shost(dev); 1709 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1710 struct lpfc_hba *phba = vport->phba; 1711 char * state; 1712 1713 if (phba->link_state == LPFC_HBA_ERROR) 1714 state = "error"; 1715 else if (phba->link_state == LPFC_WARM_START) 1716 state = "warm start"; 1717 else if (phba->link_state == LPFC_INIT_START) 1718 state = "offline"; 1719 else 1720 state = "online"; 1721 1722 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1723 } 1724 1725 /** 1726 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1727 * @dev: class device that is converted into a Scsi_host. 1728 * @attr: device attribute, not used. 1729 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1730 * @count: unused variable. 1731 * 1732 * Returns: 1733 * -EACCES if enable hba reset not enabled 1734 * -EINVAL if the buffer does not contain a valid string (see above) 1735 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1736 * buf length greater than zero indicates success 1737 **/ 1738 static ssize_t 1739 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1740 const char *buf, size_t count) 1741 { 1742 struct Scsi_Host *shost = class_to_shost(dev); 1743 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1744 struct lpfc_hba *phba = vport->phba; 1745 struct completion online_compl; 1746 char *board_mode_str = NULL; 1747 int status = 0; 1748 int rc; 1749 1750 if (!phba->cfg_enable_hba_reset) { 1751 status = -EACCES; 1752 goto board_mode_out; 1753 } 1754 1755 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1756 "3050 lpfc_board_mode set to %s\n", buf); 1757 1758 init_completion(&online_compl); 1759 1760 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1761 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1762 LPFC_EVT_ONLINE); 1763 if (rc == 0) { 1764 status = -ENOMEM; 1765 goto board_mode_out; 1766 } 1767 wait_for_completion(&online_compl); 1768 if (status) 1769 status = -EIO; 1770 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1771 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1772 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1773 if (phba->sli_rev == LPFC_SLI_REV4) 1774 status = -EINVAL; 1775 else 1776 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1777 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1778 if (phba->sli_rev == LPFC_SLI_REV4) 1779 status = -EINVAL; 1780 else 1781 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1782 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1783 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1784 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1785 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1786 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1787 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1788 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1789 == 0) 1790 status = lpfc_reset_pci_bus(phba); 1791 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1792 lpfc_issue_hb_tmo(phba); 1793 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1794 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1795 else 1796 status = -EINVAL; 1797 1798 board_mode_out: 1799 if (!status) 1800 return strlen(buf); 1801 else { 1802 board_mode_str = strchr(buf, '\n'); 1803 if (board_mode_str) 1804 *board_mode_str = '\0'; 1805 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1806 "3097 Failed \"%s\", status(%d), " 1807 "fc_flag(x%x)\n", 1808 buf, status, phba->pport->fc_flag); 1809 return status; 1810 } 1811 } 1812 1813 /** 1814 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1815 * @phba: pointer to the adapter structure. 1816 * @mxri: max xri count. 1817 * @axri: available xri count. 1818 * @mrpi: max rpi count. 1819 * @arpi: available rpi count. 1820 * @mvpi: max vpi count. 1821 * @avpi: available vpi count. 1822 * 1823 * Description: 1824 * If an integer pointer for an count is not null then the value for the 1825 * count is returned. 1826 * 1827 * Returns: 1828 * zero on error 1829 * one for success 1830 **/ 1831 static int 1832 lpfc_get_hba_info(struct lpfc_hba *phba, 1833 uint32_t *mxri, uint32_t *axri, 1834 uint32_t *mrpi, uint32_t *arpi, 1835 uint32_t *mvpi, uint32_t *avpi) 1836 { 1837 struct lpfc_mbx_read_config *rd_config; 1838 LPFC_MBOXQ_t *pmboxq; 1839 MAILBOX_t *pmb; 1840 int rc = 0; 1841 uint32_t max_vpi; 1842 1843 /* 1844 * prevent udev from issuing mailbox commands until the port is 1845 * configured. 1846 */ 1847 if (phba->link_state < LPFC_LINK_DOWN || 1848 !phba->mbox_mem_pool || 1849 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1850 return 0; 1851 1852 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1853 return 0; 1854 1855 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1856 if (!pmboxq) 1857 return 0; 1858 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1859 1860 pmb = &pmboxq->u.mb; 1861 pmb->mbxCommand = MBX_READ_CONFIG; 1862 pmb->mbxOwner = OWN_HOST; 1863 pmboxq->ctx_buf = NULL; 1864 1865 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1866 rc = MBX_NOT_FINISHED; 1867 else 1868 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1869 1870 if (rc != MBX_SUCCESS) { 1871 if (rc != MBX_TIMEOUT) 1872 mempool_free(pmboxq, phba->mbox_mem_pool); 1873 return 0; 1874 } 1875 1876 if (phba->sli_rev == LPFC_SLI_REV4) { 1877 rd_config = &pmboxq->u.mqe.un.rd_config; 1878 if (mrpi) 1879 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1880 if (arpi) 1881 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1882 phba->sli4_hba.max_cfg_param.rpi_used; 1883 if (mxri) 1884 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1885 if (axri) 1886 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1887 phba->sli4_hba.max_cfg_param.xri_used; 1888 1889 /* Account for differences with SLI-3. Get vpi count from 1890 * mailbox data and subtract one for max vpi value. 1891 */ 1892 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1893 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1894 1895 /* Limit the max we support */ 1896 if (max_vpi > LPFC_MAX_VPI) 1897 max_vpi = LPFC_MAX_VPI; 1898 if (mvpi) 1899 *mvpi = max_vpi; 1900 if (avpi) 1901 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1902 } else { 1903 if (mrpi) 1904 *mrpi = pmb->un.varRdConfig.max_rpi; 1905 if (arpi) 1906 *arpi = pmb->un.varRdConfig.avail_rpi; 1907 if (mxri) 1908 *mxri = pmb->un.varRdConfig.max_xri; 1909 if (axri) 1910 *axri = pmb->un.varRdConfig.avail_xri; 1911 if (mvpi) 1912 *mvpi = pmb->un.varRdConfig.max_vpi; 1913 if (avpi) { 1914 /* avail_vpi is only valid if link is up and ready */ 1915 if (phba->link_state == LPFC_HBA_READY) 1916 *avpi = pmb->un.varRdConfig.avail_vpi; 1917 else 1918 *avpi = pmb->un.varRdConfig.max_vpi; 1919 } 1920 } 1921 1922 mempool_free(pmboxq, phba->mbox_mem_pool); 1923 return 1; 1924 } 1925 1926 /** 1927 * lpfc_max_rpi_show - Return maximum rpi 1928 * @dev: class device that is converted into a Scsi_host. 1929 * @attr: device attribute, not used. 1930 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1931 * 1932 * Description: 1933 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1934 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1935 * to "Unknown" and the buffer length is returned, therefore the caller 1936 * must check for "Unknown" in the buffer to detect a failure. 1937 * 1938 * Returns: size of formatted string. 1939 **/ 1940 static ssize_t 1941 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1942 char *buf) 1943 { 1944 struct Scsi_Host *shost = class_to_shost(dev); 1945 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1946 struct lpfc_hba *phba = vport->phba; 1947 uint32_t cnt; 1948 1949 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1950 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 1951 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1952 } 1953 1954 /** 1955 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1956 * @dev: class device that is converted into a Scsi_host. 1957 * @attr: device attribute, not used. 1958 * @buf: containing the used rpi count in decimal or "Unknown". 1959 * 1960 * Description: 1961 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1962 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1963 * to "Unknown" and the buffer length is returned, therefore the caller 1964 * must check for "Unknown" in the buffer to detect a failure. 1965 * 1966 * Returns: size of formatted string. 1967 **/ 1968 static ssize_t 1969 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1970 char *buf) 1971 { 1972 struct Scsi_Host *shost = class_to_shost(dev); 1973 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1974 struct lpfc_hba *phba = vport->phba; 1975 uint32_t cnt, acnt; 1976 1977 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1978 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1979 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1980 } 1981 1982 /** 1983 * lpfc_max_xri_show - Return maximum xri 1984 * @dev: class device that is converted into a Scsi_host. 1985 * @attr: device attribute, not used. 1986 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1987 * 1988 * Description: 1989 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1990 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1991 * to "Unknown" and the buffer length is returned, therefore the caller 1992 * must check for "Unknown" in the buffer to detect a failure. 1993 * 1994 * Returns: size of formatted string. 1995 **/ 1996 static ssize_t 1997 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1998 char *buf) 1999 { 2000 struct Scsi_Host *shost = class_to_shost(dev); 2001 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2002 struct lpfc_hba *phba = vport->phba; 2003 uint32_t cnt; 2004 2005 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2006 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2007 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2008 } 2009 2010 /** 2011 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2012 * @dev: class device that is converted into a Scsi_host. 2013 * @attr: device attribute, not used. 2014 * @buf: on return contains the used xri count in decimal or "Unknown". 2015 * 2016 * Description: 2017 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2018 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2019 * to "Unknown" and the buffer length is returned, therefore the caller 2020 * must check for "Unknown" in the buffer to detect a failure. 2021 * 2022 * Returns: size of formatted string. 2023 **/ 2024 static ssize_t 2025 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2026 char *buf) 2027 { 2028 struct Scsi_Host *shost = class_to_shost(dev); 2029 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2030 struct lpfc_hba *phba = vport->phba; 2031 uint32_t cnt, acnt; 2032 2033 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2034 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2035 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2036 } 2037 2038 /** 2039 * lpfc_max_vpi_show - Return maximum vpi 2040 * @dev: class device that is converted into a Scsi_host. 2041 * @attr: device attribute, not used. 2042 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2043 * 2044 * Description: 2045 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2046 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2047 * to "Unknown" and the buffer length is returned, therefore the caller 2048 * must check for "Unknown" in the buffer to detect a failure. 2049 * 2050 * Returns: size of formatted string. 2051 **/ 2052 static ssize_t 2053 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2054 char *buf) 2055 { 2056 struct Scsi_Host *shost = class_to_shost(dev); 2057 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2058 struct lpfc_hba *phba = vport->phba; 2059 uint32_t cnt; 2060 2061 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2062 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2063 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2064 } 2065 2066 /** 2067 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2068 * @dev: class device that is converted into a Scsi_host. 2069 * @attr: device attribute, not used. 2070 * @buf: on return contains the used vpi count in decimal or "Unknown". 2071 * 2072 * Description: 2073 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2074 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2075 * to "Unknown" and the buffer length is returned, therefore the caller 2076 * must check for "Unknown" in the buffer to detect a failure. 2077 * 2078 * Returns: size of formatted string. 2079 **/ 2080 static ssize_t 2081 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2082 char *buf) 2083 { 2084 struct Scsi_Host *shost = class_to_shost(dev); 2085 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2086 struct lpfc_hba *phba = vport->phba; 2087 uint32_t cnt, acnt; 2088 2089 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2090 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2091 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2092 } 2093 2094 /** 2095 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2096 * @dev: class device that is converted into a Scsi_host. 2097 * @attr: device attribute, not used. 2098 * @buf: text that must be interpreted to determine if npiv is supported. 2099 * 2100 * Description: 2101 * Buffer will contain text indicating npiv is not suppoerted on the port, 2102 * the port is an NPIV physical port, or it is an npiv virtual port with 2103 * the id of the vport. 2104 * 2105 * Returns: size of formatted string. 2106 **/ 2107 static ssize_t 2108 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2109 char *buf) 2110 { 2111 struct Scsi_Host *shost = class_to_shost(dev); 2112 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2113 struct lpfc_hba *phba = vport->phba; 2114 2115 if (!(phba->max_vpi)) 2116 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2117 if (vport->port_type == LPFC_PHYSICAL_PORT) 2118 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2119 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2120 } 2121 2122 /** 2123 * lpfc_poll_show - Return text about poll support for the adapter 2124 * @dev: class device that is converted into a Scsi_host. 2125 * @attr: device attribute, not used. 2126 * @buf: on return contains the cfg_poll in hex. 2127 * 2128 * Notes: 2129 * cfg_poll should be a lpfc_polling_flags type. 2130 * 2131 * Returns: size of formatted string. 2132 **/ 2133 static ssize_t 2134 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2135 char *buf) 2136 { 2137 struct Scsi_Host *shost = class_to_shost(dev); 2138 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2139 struct lpfc_hba *phba = vport->phba; 2140 2141 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2142 } 2143 2144 /** 2145 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2146 * @dev: class device that is converted into a Scsi_host. 2147 * @attr: device attribute, not used. 2148 * @buf: one or more lpfc_polling_flags values. 2149 * @count: not used. 2150 * 2151 * Notes: 2152 * buf contents converted to integer and checked for a valid value. 2153 * 2154 * Returns: 2155 * -EINVAL if the buffer connot be converted or is out of range 2156 * length of the buf on success 2157 **/ 2158 static ssize_t 2159 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2160 const char *buf, size_t count) 2161 { 2162 struct Scsi_Host *shost = class_to_shost(dev); 2163 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2164 struct lpfc_hba *phba = vport->phba; 2165 uint32_t creg_val; 2166 uint32_t old_val; 2167 int val=0; 2168 2169 if (!isdigit(buf[0])) 2170 return -EINVAL; 2171 2172 if (sscanf(buf, "%i", &val) != 1) 2173 return -EINVAL; 2174 2175 if ((val & 0x3) != val) 2176 return -EINVAL; 2177 2178 if (phba->sli_rev == LPFC_SLI_REV4) 2179 val = 0; 2180 2181 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2182 "3051 lpfc_poll changed from %d to %d\n", 2183 phba->cfg_poll, val); 2184 2185 spin_lock_irq(&phba->hbalock); 2186 2187 old_val = phba->cfg_poll; 2188 2189 if (val & ENABLE_FCP_RING_POLLING) { 2190 if ((val & DISABLE_FCP_RING_INT) && 2191 !(old_val & DISABLE_FCP_RING_INT)) { 2192 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2193 spin_unlock_irq(&phba->hbalock); 2194 return -EINVAL; 2195 } 2196 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2197 writel(creg_val, phba->HCregaddr); 2198 readl(phba->HCregaddr); /* flush */ 2199 2200 lpfc_poll_start_timer(phba); 2201 } 2202 } else if (val != 0x0) { 2203 spin_unlock_irq(&phba->hbalock); 2204 return -EINVAL; 2205 } 2206 2207 if (!(val & DISABLE_FCP_RING_INT) && 2208 (old_val & DISABLE_FCP_RING_INT)) 2209 { 2210 spin_unlock_irq(&phba->hbalock); 2211 del_timer(&phba->fcp_poll_timer); 2212 spin_lock_irq(&phba->hbalock); 2213 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2214 spin_unlock_irq(&phba->hbalock); 2215 return -EINVAL; 2216 } 2217 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2218 writel(creg_val, phba->HCregaddr); 2219 readl(phba->HCregaddr); /* flush */ 2220 } 2221 2222 phba->cfg_poll = val; 2223 2224 spin_unlock_irq(&phba->hbalock); 2225 2226 return strlen(buf); 2227 } 2228 2229 /** 2230 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2231 * @dev: class converted to a Scsi_host structure. 2232 * @attr: device attribute, not used. 2233 * @buf: on return contains the formatted support level. 2234 * 2235 * Description: 2236 * Returns the maximum number of virtual functions a physical function can 2237 * support, 0 will be returned if called on virtual function. 2238 * 2239 * Returns: size of formatted string. 2240 **/ 2241 static ssize_t 2242 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2243 struct device_attribute *attr, 2244 char *buf) 2245 { 2246 struct Scsi_Host *shost = class_to_shost(dev); 2247 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2248 struct lpfc_hba *phba = vport->phba; 2249 uint16_t max_nr_virtfn; 2250 2251 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2252 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2253 } 2254 2255 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2256 { 2257 return val >= min && val <= max; 2258 } 2259 2260 /** 2261 * lpfc_enable_bbcr_set: Sets an attribute value. 2262 * @phba: pointer the the adapter structure. 2263 * @val: integer attribute value. 2264 * 2265 * Description: 2266 * Validates the min and max values then sets the 2267 * adapter config field if in the valid range. prints error message 2268 * and does not set the parameter if invalid. 2269 * 2270 * Returns: 2271 * zero on success 2272 * -EINVAL if val is invalid 2273 */ 2274 static ssize_t 2275 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2276 { 2277 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2279 "3068 %s_enable_bbcr changed from %d to %d\n", 2280 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2281 phba->cfg_enable_bbcr = val; 2282 return 0; 2283 } 2284 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2285 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2286 LPFC_DRIVER_NAME, val); 2287 return -EINVAL; 2288 } 2289 2290 /* 2291 * lpfc_param_show - Return a cfg attribute value in decimal 2292 * 2293 * Description: 2294 * Macro that given an attr e.g. hba_queue_depth expands 2295 * into a function with the name lpfc_hba_queue_depth_show. 2296 * 2297 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2298 * @dev: class device that is converted into a Scsi_host. 2299 * @attr: device attribute, not used. 2300 * @buf: on return contains the attribute value in decimal. 2301 * 2302 * Returns: size of formatted string. 2303 **/ 2304 #define lpfc_param_show(attr) \ 2305 static ssize_t \ 2306 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2307 char *buf) \ 2308 { \ 2309 struct Scsi_Host *shost = class_to_shost(dev);\ 2310 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2311 struct lpfc_hba *phba = vport->phba;\ 2312 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2313 phba->cfg_##attr);\ 2314 } 2315 2316 /* 2317 * lpfc_param_hex_show - Return a cfg attribute value in hex 2318 * 2319 * Description: 2320 * Macro that given an attr e.g. hba_queue_depth expands 2321 * into a function with the name lpfc_hba_queue_depth_show 2322 * 2323 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2324 * @dev: class device that is converted into a Scsi_host. 2325 * @attr: device attribute, not used. 2326 * @buf: on return contains the attribute value in hexadecimal. 2327 * 2328 * Returns: size of formatted string. 2329 **/ 2330 #define lpfc_param_hex_show(attr) \ 2331 static ssize_t \ 2332 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2333 char *buf) \ 2334 { \ 2335 struct Scsi_Host *shost = class_to_shost(dev);\ 2336 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2337 struct lpfc_hba *phba = vport->phba;\ 2338 uint val = 0;\ 2339 val = phba->cfg_##attr;\ 2340 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2341 phba->cfg_##attr);\ 2342 } 2343 2344 /* 2345 * lpfc_param_init - Initializes a cfg attribute 2346 * 2347 * Description: 2348 * Macro that given an attr e.g. hba_queue_depth expands 2349 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2350 * takes a default argument, a minimum and maximum argument. 2351 * 2352 * lpfc_##attr##_init: Initializes an attribute. 2353 * @phba: pointer the the adapter structure. 2354 * @val: integer attribute value. 2355 * 2356 * Validates the min and max values then sets the adapter config field 2357 * accordingly, or uses the default if out of range and prints an error message. 2358 * 2359 * Returns: 2360 * zero on success 2361 * -EINVAL if default used 2362 **/ 2363 #define lpfc_param_init(attr, default, minval, maxval) \ 2364 static int \ 2365 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2366 { \ 2367 if (lpfc_rangecheck(val, minval, maxval)) {\ 2368 phba->cfg_##attr = val;\ 2369 return 0;\ 2370 }\ 2371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2372 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2373 "allowed range is ["#minval", "#maxval"]\n", val); \ 2374 phba->cfg_##attr = default;\ 2375 return -EINVAL;\ 2376 } 2377 2378 /* 2379 * lpfc_param_set - Set a cfg attribute value 2380 * 2381 * Description: 2382 * Macro that given an attr e.g. hba_queue_depth expands 2383 * into a function with the name lpfc_hba_queue_depth_set 2384 * 2385 * lpfc_##attr##_set: Sets an attribute value. 2386 * @phba: pointer the the adapter structure. 2387 * @val: integer attribute value. 2388 * 2389 * Description: 2390 * Validates the min and max values then sets the 2391 * adapter config field if in the valid range. prints error message 2392 * and does not set the parameter if invalid. 2393 * 2394 * Returns: 2395 * zero on success 2396 * -EINVAL if val is invalid 2397 **/ 2398 #define lpfc_param_set(attr, default, minval, maxval) \ 2399 static int \ 2400 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2401 { \ 2402 if (lpfc_rangecheck(val, minval, maxval)) {\ 2403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2404 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2405 phba->cfg_##attr, val); \ 2406 phba->cfg_##attr = val;\ 2407 return 0;\ 2408 }\ 2409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2410 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2411 "allowed range is ["#minval", "#maxval"]\n", val); \ 2412 return -EINVAL;\ 2413 } 2414 2415 /* 2416 * lpfc_param_store - Set a vport attribute value 2417 * 2418 * Description: 2419 * Macro that given an attr e.g. hba_queue_depth expands 2420 * into a function with the name lpfc_hba_queue_depth_store. 2421 * 2422 * lpfc_##attr##_store: Set an sttribute value. 2423 * @dev: class device that is converted into a Scsi_host. 2424 * @attr: device attribute, not used. 2425 * @buf: contains the attribute value in ascii. 2426 * @count: not used. 2427 * 2428 * Description: 2429 * Convert the ascii text number to an integer, then 2430 * use the lpfc_##attr##_set function to set the value. 2431 * 2432 * Returns: 2433 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2434 * length of buffer upon success. 2435 **/ 2436 #define lpfc_param_store(attr) \ 2437 static ssize_t \ 2438 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2439 const char *buf, size_t count) \ 2440 { \ 2441 struct Scsi_Host *shost = class_to_shost(dev);\ 2442 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2443 struct lpfc_hba *phba = vport->phba;\ 2444 uint val = 0;\ 2445 if (!isdigit(buf[0]))\ 2446 return -EINVAL;\ 2447 if (sscanf(buf, "%i", &val) != 1)\ 2448 return -EINVAL;\ 2449 if (lpfc_##attr##_set(phba, val) == 0) \ 2450 return strlen(buf);\ 2451 else \ 2452 return -EINVAL;\ 2453 } 2454 2455 /* 2456 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2457 * 2458 * Description: 2459 * Macro that given an attr e.g. hba_queue_depth expands 2460 * into a function with the name lpfc_hba_queue_depth_show 2461 * 2462 * lpfc_##attr##_show: prints the attribute value in decimal. 2463 * @dev: class device that is converted into a Scsi_host. 2464 * @attr: device attribute, not used. 2465 * @buf: on return contains the attribute value in decimal. 2466 * 2467 * Returns: length of formatted string. 2468 **/ 2469 #define lpfc_vport_param_show(attr) \ 2470 static ssize_t \ 2471 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2472 char *buf) \ 2473 { \ 2474 struct Scsi_Host *shost = class_to_shost(dev);\ 2475 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2476 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2477 } 2478 2479 /* 2480 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2481 * 2482 * Description: 2483 * Macro that given an attr e.g. 2484 * hba_queue_depth expands into a function with the name 2485 * lpfc_hba_queue_depth_show 2486 * 2487 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2488 * @dev: class device that is converted into a Scsi_host. 2489 * @attr: device attribute, not used. 2490 * @buf: on return contains the attribute value in hexadecimal. 2491 * 2492 * Returns: length of formatted string. 2493 **/ 2494 #define lpfc_vport_param_hex_show(attr) \ 2495 static ssize_t \ 2496 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2497 char *buf) \ 2498 { \ 2499 struct Scsi_Host *shost = class_to_shost(dev);\ 2500 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2501 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2502 } 2503 2504 /* 2505 * lpfc_vport_param_init - Initialize a vport cfg attribute 2506 * 2507 * Description: 2508 * Macro that given an attr e.g. hba_queue_depth expands 2509 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2510 * takes a default argument, a minimum and maximum argument. 2511 * 2512 * lpfc_##attr##_init: validates the min and max values then sets the 2513 * adapter config field accordingly, or uses the default if out of range 2514 * and prints an error message. 2515 * @phba: pointer the the adapter structure. 2516 * @val: integer attribute value. 2517 * 2518 * Returns: 2519 * zero on success 2520 * -EINVAL if default used 2521 **/ 2522 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2523 static int \ 2524 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2525 { \ 2526 if (lpfc_rangecheck(val, minval, maxval)) {\ 2527 vport->cfg_##attr = val;\ 2528 return 0;\ 2529 }\ 2530 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2531 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2532 "allowed range is ["#minval", "#maxval"]\n", val); \ 2533 vport->cfg_##attr = default;\ 2534 return -EINVAL;\ 2535 } 2536 2537 /* 2538 * lpfc_vport_param_set - Set a vport cfg attribute 2539 * 2540 * Description: 2541 * Macro that given an attr e.g. hba_queue_depth expands 2542 * into a function with the name lpfc_hba_queue_depth_set 2543 * 2544 * lpfc_##attr##_set: validates the min and max values then sets the 2545 * adapter config field if in the valid range. prints error message 2546 * and does not set the parameter if invalid. 2547 * @phba: pointer the the adapter structure. 2548 * @val: integer attribute value. 2549 * 2550 * Returns: 2551 * zero on success 2552 * -EINVAL if val is invalid 2553 **/ 2554 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2555 static int \ 2556 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2557 { \ 2558 if (lpfc_rangecheck(val, minval, maxval)) {\ 2559 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2560 "3053 lpfc_" #attr \ 2561 " changed from %d (x%x) to %d (x%x)\n", \ 2562 vport->cfg_##attr, vport->cfg_##attr, \ 2563 val, val); \ 2564 vport->cfg_##attr = val;\ 2565 return 0;\ 2566 }\ 2567 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2568 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2569 "allowed range is ["#minval", "#maxval"]\n", val); \ 2570 return -EINVAL;\ 2571 } 2572 2573 /* 2574 * lpfc_vport_param_store - Set a vport attribute 2575 * 2576 * Description: 2577 * Macro that given an attr e.g. hba_queue_depth 2578 * expands into a function with the name lpfc_hba_queue_depth_store 2579 * 2580 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2581 * use the lpfc_##attr##_set function to set the value. 2582 * @cdev: class device that is converted into a Scsi_host. 2583 * @buf: contains the attribute value in decimal. 2584 * @count: not used. 2585 * 2586 * Returns: 2587 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2588 * length of buffer upon success. 2589 **/ 2590 #define lpfc_vport_param_store(attr) \ 2591 static ssize_t \ 2592 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2593 const char *buf, size_t count) \ 2594 { \ 2595 struct Scsi_Host *shost = class_to_shost(dev);\ 2596 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2597 uint val = 0;\ 2598 if (!isdigit(buf[0]))\ 2599 return -EINVAL;\ 2600 if (sscanf(buf, "%i", &val) != 1)\ 2601 return -EINVAL;\ 2602 if (lpfc_##attr##_set(vport, val) == 0) \ 2603 return strlen(buf);\ 2604 else \ 2605 return -EINVAL;\ 2606 } 2607 2608 2609 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2610 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2611 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2612 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2613 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2614 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2615 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2616 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2617 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2618 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2619 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2620 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2621 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2622 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2623 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2624 lpfc_link_state_store); 2625 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2626 lpfc_option_rom_version_show, NULL); 2627 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2628 lpfc_num_discovered_ports_show, NULL); 2629 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2630 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2631 static DEVICE_ATTR_RO(lpfc_drvr_version); 2632 static DEVICE_ATTR_RO(lpfc_enable_fip); 2633 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2634 lpfc_board_mode_show, lpfc_board_mode_store); 2635 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2636 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2637 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2638 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2639 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2640 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2641 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2642 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2643 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2644 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2645 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2646 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2647 NULL); 2648 2649 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2650 #define WWN_SZ 8 2651 /** 2652 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2653 * @buf: WWN string. 2654 * @cnt: Length of string. 2655 * @wwn: Array to receive converted wwn value. 2656 * 2657 * Returns: 2658 * -EINVAL if the buffer does not contain a valid wwn 2659 * 0 success 2660 **/ 2661 static size_t 2662 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2663 { 2664 unsigned int i, j; 2665 2666 /* Count may include a LF at end of string */ 2667 if (buf[cnt-1] == '\n') 2668 cnt--; 2669 2670 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2671 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2672 return -EINVAL; 2673 2674 memset(wwn, 0, WWN_SZ); 2675 2676 /* Validate and store the new name */ 2677 for (i = 0, j = 0; i < 16; i++) { 2678 if ((*buf >= 'a') && (*buf <= 'f')) 2679 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2680 else if ((*buf >= 'A') && (*buf <= 'F')) 2681 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2682 else if ((*buf >= '0') && (*buf <= '9')) 2683 j = ((j << 4) | (*buf++ - '0')); 2684 else 2685 return -EINVAL; 2686 if (i % 2) { 2687 wwn[i/2] = j & 0xff; 2688 j = 0; 2689 } 2690 } 2691 return 0; 2692 } 2693 /** 2694 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2695 * @dev: class device that is converted into a Scsi_host. 2696 * @attr: device attribute, not used. 2697 * @buf: containing the string lpfc_soft_wwn_key. 2698 * @count: must be size of lpfc_soft_wwn_key. 2699 * 2700 * Returns: 2701 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2702 * length of buf indicates success 2703 **/ 2704 static ssize_t 2705 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2706 const char *buf, size_t count) 2707 { 2708 struct Scsi_Host *shost = class_to_shost(dev); 2709 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2710 struct lpfc_hba *phba = vport->phba; 2711 unsigned int cnt = count; 2712 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2713 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2714 2715 /* 2716 * We're doing a simple sanity check for soft_wwpn setting. 2717 * We require that the user write a specific key to enable 2718 * the soft_wwpn attribute to be settable. Once the attribute 2719 * is written, the enable key resets. If further updates are 2720 * desired, the key must be written again to re-enable the 2721 * attribute. 2722 * 2723 * The "key" is not secret - it is a hardcoded string shown 2724 * here. The intent is to protect against the random user or 2725 * application that is just writing attributes. 2726 */ 2727 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2729 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2730 " be enabled: fawwpn is enabled\n"); 2731 return -EINVAL; 2732 } 2733 2734 /* count may include a LF at end of string */ 2735 if (buf[cnt-1] == '\n') 2736 cnt--; 2737 2738 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2739 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2740 return -EINVAL; 2741 2742 phba->soft_wwn_enable = 1; 2743 2744 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2745 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2746 phba->brd_no); 2747 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2748 " The soft_wwpn feature is not supported by Broadcom."); 2749 2750 return count; 2751 } 2752 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2753 2754 /** 2755 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2756 * @dev: class device that is converted into a Scsi_host. 2757 * @attr: device attribute, not used. 2758 * @buf: on return contains the wwpn in hexadecimal. 2759 * 2760 * Returns: size of formatted string. 2761 **/ 2762 static ssize_t 2763 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2764 char *buf) 2765 { 2766 struct Scsi_Host *shost = class_to_shost(dev); 2767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2768 struct lpfc_hba *phba = vport->phba; 2769 2770 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2771 (unsigned long long)phba->cfg_soft_wwpn); 2772 } 2773 2774 /** 2775 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2776 * @dev: class device that is converted into a Scsi_host. 2777 * @attr: device attribute, not used. 2778 * @buf: contains the wwpn in hexadecimal. 2779 * @count: number of wwpn bytes in buf 2780 * 2781 * Returns: 2782 * -EACCES hba reset not enabled, adapter over temp 2783 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2784 * -EIO error taking adapter offline or online 2785 * value of count on success 2786 **/ 2787 static ssize_t 2788 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2789 const char *buf, size_t count) 2790 { 2791 struct Scsi_Host *shost = class_to_shost(dev); 2792 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2793 struct lpfc_hba *phba = vport->phba; 2794 struct completion online_compl; 2795 int stat1 = 0, stat2 = 0; 2796 unsigned int cnt = count; 2797 u8 wwpn[WWN_SZ]; 2798 int rc; 2799 2800 if (!phba->cfg_enable_hba_reset) 2801 return -EACCES; 2802 spin_lock_irq(&phba->hbalock); 2803 if (phba->over_temp_state == HBA_OVER_TEMP) { 2804 spin_unlock_irq(&phba->hbalock); 2805 return -EACCES; 2806 } 2807 spin_unlock_irq(&phba->hbalock); 2808 /* count may include a LF at end of string */ 2809 if (buf[cnt-1] == '\n') 2810 cnt--; 2811 2812 if (!phba->soft_wwn_enable) 2813 return -EINVAL; 2814 2815 /* lock setting wwpn, wwnn down */ 2816 phba->soft_wwn_enable = 0; 2817 2818 rc = lpfc_wwn_set(buf, cnt, wwpn); 2819 if (rc) { 2820 /* not able to set wwpn, unlock it */ 2821 phba->soft_wwn_enable = 1; 2822 return rc; 2823 } 2824 2825 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2826 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2827 if (phba->cfg_soft_wwnn) 2828 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2829 2830 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2831 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2832 2833 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2834 if (stat1) 2835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2836 "0463 lpfc_soft_wwpn attribute set failed to " 2837 "reinit adapter - %d\n", stat1); 2838 init_completion(&online_compl); 2839 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2840 LPFC_EVT_ONLINE); 2841 if (rc == 0) 2842 return -ENOMEM; 2843 2844 wait_for_completion(&online_compl); 2845 if (stat2) 2846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2847 "0464 lpfc_soft_wwpn attribute set failed to " 2848 "reinit adapter - %d\n", stat2); 2849 return (stat1 || stat2) ? -EIO : count; 2850 } 2851 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2852 2853 /** 2854 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2855 * @dev: class device that is converted into a Scsi_host. 2856 * @attr: device attribute, not used. 2857 * @buf: on return contains the wwnn in hexadecimal. 2858 * 2859 * Returns: size of formatted string. 2860 **/ 2861 static ssize_t 2862 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2863 char *buf) 2864 { 2865 struct Scsi_Host *shost = class_to_shost(dev); 2866 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2867 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2868 (unsigned long long)phba->cfg_soft_wwnn); 2869 } 2870 2871 /** 2872 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2873 * @dev: class device that is converted into a Scsi_host. 2874 * @attr: device attribute, not used. 2875 * @buf: contains the ww node name in hexadecimal. 2876 * @count: number of wwnn bytes in buf. 2877 * 2878 * Returns: 2879 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2880 * value of count on success 2881 **/ 2882 static ssize_t 2883 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2884 const char *buf, size_t count) 2885 { 2886 struct Scsi_Host *shost = class_to_shost(dev); 2887 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2888 unsigned int cnt = count; 2889 u8 wwnn[WWN_SZ]; 2890 int rc; 2891 2892 /* count may include a LF at end of string */ 2893 if (buf[cnt-1] == '\n') 2894 cnt--; 2895 2896 if (!phba->soft_wwn_enable) 2897 return -EINVAL; 2898 2899 rc = lpfc_wwn_set(buf, cnt, wwnn); 2900 if (rc) { 2901 /* Allow wwnn to be set many times, as long as the enable 2902 * is set. However, once the wwpn is set, everything locks. 2903 */ 2904 return rc; 2905 } 2906 2907 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2908 2909 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2910 "lpfc%d: soft_wwnn set. Value will take effect upon " 2911 "setting of the soft_wwpn\n", phba->brd_no); 2912 2913 return count; 2914 } 2915 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2916 2917 /** 2918 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2919 * Optimized Access Storage (OAS) operations. 2920 * @dev: class device that is converted into a Scsi_host. 2921 * @attr: device attribute, not used. 2922 * @buf: buffer for passing information. 2923 * 2924 * Returns: 2925 * value of count 2926 **/ 2927 static ssize_t 2928 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2929 char *buf) 2930 { 2931 struct Scsi_Host *shost = class_to_shost(dev); 2932 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2933 2934 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2935 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2936 } 2937 2938 /** 2939 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2940 * Optimized Access Storage (OAS) operations. 2941 * @dev: class device that is converted into a Scsi_host. 2942 * @attr: device attribute, not used. 2943 * @buf: buffer for passing information. 2944 * @count: Size of the data buffer. 2945 * 2946 * Returns: 2947 * -EINVAL count is invalid, invalid wwpn byte invalid 2948 * -EPERM oas is not supported by hba 2949 * value of count on success 2950 **/ 2951 static ssize_t 2952 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2953 const char *buf, size_t count) 2954 { 2955 struct Scsi_Host *shost = class_to_shost(dev); 2956 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2957 unsigned int cnt = count; 2958 uint8_t wwpn[WWN_SZ]; 2959 int rc; 2960 2961 if (!phba->cfg_fof) 2962 return -EPERM; 2963 2964 /* count may include a LF at end of string */ 2965 if (buf[cnt-1] == '\n') 2966 cnt--; 2967 2968 rc = lpfc_wwn_set(buf, cnt, wwpn); 2969 if (rc) 2970 return rc; 2971 2972 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2973 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2974 if (wwn_to_u64(wwpn) == 0) 2975 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2976 else 2977 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2978 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2979 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2980 return count; 2981 } 2982 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2983 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2984 2985 /** 2986 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2987 * Optimized Access Storage (OAS) operations. 2988 * @dev: class device that is converted into a Scsi_host. 2989 * @attr: device attribute, not used. 2990 * @buf: buffer for passing information. 2991 * 2992 * Returns: 2993 * value of count 2994 **/ 2995 static ssize_t 2996 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2997 char *buf) 2998 { 2999 struct Scsi_Host *shost = class_to_shost(dev); 3000 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3001 3002 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3003 } 3004 3005 /** 3006 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3007 * Optimized Access Storage (OAS) operations. 3008 * @dev: class device that is converted into a Scsi_host. 3009 * @attr: device attribute, not used. 3010 * @buf: buffer for passing information. 3011 * @count: Size of the data buffer. 3012 * 3013 * Returns: 3014 * -EINVAL count is invalid, invalid wwpn byte invalid 3015 * -EPERM oas is not supported by hba 3016 * value of count on success 3017 **/ 3018 static ssize_t 3019 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3020 const char *buf, size_t count) 3021 { 3022 struct Scsi_Host *shost = class_to_shost(dev); 3023 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3024 unsigned int cnt = count; 3025 unsigned long val; 3026 int ret; 3027 3028 if (!phba->cfg_fof) 3029 return -EPERM; 3030 3031 /* count may include a LF at end of string */ 3032 if (buf[cnt-1] == '\n') 3033 cnt--; 3034 3035 ret = kstrtoul(buf, 0, &val); 3036 if (ret || (val > 0x7f)) 3037 return -EINVAL; 3038 3039 if (val) 3040 phba->cfg_oas_priority = (uint8_t)val; 3041 else 3042 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3043 return count; 3044 } 3045 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3046 lpfc_oas_priority_show, lpfc_oas_priority_store); 3047 3048 /** 3049 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3050 * for Optimized Access Storage (OAS) operations. 3051 * @dev: class device that is converted into a Scsi_host. 3052 * @attr: device attribute, not used. 3053 * @buf: buffer for passing information. 3054 * 3055 * Returns: 3056 * value of count on success 3057 **/ 3058 static ssize_t 3059 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3060 char *buf) 3061 { 3062 struct Scsi_Host *shost = class_to_shost(dev); 3063 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3064 3065 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3066 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3067 } 3068 3069 /** 3070 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3071 * for Optimized Access Storage (OAS) operations. 3072 * @dev: class device that is converted into a Scsi_host. 3073 * @attr: device attribute, not used. 3074 * @buf: buffer for passing information. 3075 * @count: Size of the data buffer. 3076 * 3077 * Returns: 3078 * -EINVAL count is invalid, invalid wwpn byte invalid 3079 * -EPERM oas is not supported by hba 3080 * value of count on success 3081 **/ 3082 static ssize_t 3083 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3084 const char *buf, size_t count) 3085 { 3086 struct Scsi_Host *shost = class_to_shost(dev); 3087 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3088 unsigned int cnt = count; 3089 uint8_t wwpn[WWN_SZ]; 3090 int rc; 3091 3092 if (!phba->cfg_fof) 3093 return -EPERM; 3094 3095 /* count may include a LF at end of string */ 3096 if (buf[cnt-1] == '\n') 3097 cnt--; 3098 3099 rc = lpfc_wwn_set(buf, cnt, wwpn); 3100 if (rc) 3101 return rc; 3102 3103 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3104 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3105 if (wwn_to_u64(wwpn) == 0) 3106 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3107 else 3108 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3109 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3110 if (phba->cfg_oas_priority == 0) 3111 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3112 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3113 return count; 3114 } 3115 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3116 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3117 3118 /** 3119 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3120 * of whether luns will be enabled or disabled 3121 * for Optimized Access Storage (OAS) operations. 3122 * @dev: class device that is converted into a Scsi_host. 3123 * @attr: device attribute, not used. 3124 * @buf: buffer for passing information. 3125 * 3126 * Returns: 3127 * size of formatted string. 3128 **/ 3129 static ssize_t 3130 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3131 char *buf) 3132 { 3133 struct Scsi_Host *shost = class_to_shost(dev); 3134 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3135 3136 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3137 } 3138 3139 /** 3140 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3141 * of whether luns will be enabled or disabled 3142 * for Optimized Access Storage (OAS) operations. 3143 * @dev: class device that is converted into a Scsi_host. 3144 * @attr: device attribute, not used. 3145 * @buf: buffer for passing information. 3146 * @count: Size of the data buffer. 3147 * 3148 * Returns: 3149 * -EINVAL count is invalid, invalid wwpn byte invalid 3150 * -EPERM oas is not supported by hba 3151 * value of count on success 3152 **/ 3153 static ssize_t 3154 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3155 const char *buf, size_t count) 3156 { 3157 struct Scsi_Host *shost = class_to_shost(dev); 3158 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3159 int val = 0; 3160 3161 if (!phba->cfg_fof) 3162 return -EPERM; 3163 3164 if (!isdigit(buf[0])) 3165 return -EINVAL; 3166 3167 if (sscanf(buf, "%i", &val) != 1) 3168 return -EINVAL; 3169 3170 if ((val != 0) && (val != 1)) 3171 return -EINVAL; 3172 3173 phba->cfg_oas_lun_state = val; 3174 return strlen(buf); 3175 } 3176 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3177 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3178 3179 /** 3180 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3181 * Storage (OAS) lun returned by the 3182 * lpfc_oas_lun_show function. 3183 * @dev: class device that is converted into a Scsi_host. 3184 * @attr: device attribute, not used. 3185 * @buf: buffer for passing information. 3186 * 3187 * Returns: 3188 * size of formatted string. 3189 **/ 3190 static ssize_t 3191 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3192 char *buf) 3193 { 3194 struct Scsi_Host *shost = class_to_shost(dev); 3195 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3196 3197 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3198 return -EFAULT; 3199 3200 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3201 } 3202 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3203 lpfc_oas_lun_status_show, NULL); 3204 3205 3206 /** 3207 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3208 * (OAS) operations. 3209 * @phba: lpfc_hba pointer. 3210 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3211 * @tgt_wwpn: wwpn of the target associated with the returned lun 3212 * @lun: the fc lun for setting oas state. 3213 * @oas_state: the oas state to be set to the lun. 3214 * @pri: priority 3215 * 3216 * Returns: 3217 * SUCCESS : 0 3218 * -EPERM OAS is not enabled or not supported by this port. 3219 * 3220 */ 3221 static size_t 3222 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3223 uint8_t tgt_wwpn[], uint64_t lun, 3224 uint32_t oas_state, uint8_t pri) 3225 { 3226 3227 int rc = 0; 3228 3229 if (!phba->cfg_fof) 3230 return -EPERM; 3231 3232 if (oas_state) { 3233 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3234 (struct lpfc_name *)tgt_wwpn, 3235 lun, pri)) 3236 rc = -ENOMEM; 3237 } else { 3238 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3239 (struct lpfc_name *)tgt_wwpn, lun, pri); 3240 } 3241 return rc; 3242 3243 } 3244 3245 /** 3246 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3247 * Access Storage (OAS) operations. 3248 * @phba: lpfc_hba pointer. 3249 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3250 * @tgt_wwpn: wwpn of the target associated with the returned lun 3251 * @lun_status: status of the lun returned lun 3252 * @lun_pri: priority of the lun returned lun 3253 * 3254 * Returns the first or next lun enabled for OAS operations for the vport/target 3255 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3256 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3257 * 3258 * Return: 3259 * lun that is OAS enabled for the vport/target 3260 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3261 */ 3262 static uint64_t 3263 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3264 uint8_t tgt_wwpn[], uint32_t *lun_status, 3265 uint32_t *lun_pri) 3266 { 3267 uint64_t found_lun; 3268 3269 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3270 return NOT_OAS_ENABLED_LUN; 3271 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3272 phba->sli4_hba.oas_next_vpt_wwpn, 3273 (struct lpfc_name *) 3274 phba->sli4_hba.oas_next_tgt_wwpn, 3275 &phba->sli4_hba.oas_next_lun, 3276 (struct lpfc_name *)vpt_wwpn, 3277 (struct lpfc_name *)tgt_wwpn, 3278 &found_lun, lun_status, lun_pri)) 3279 return found_lun; 3280 else 3281 return NOT_OAS_ENABLED_LUN; 3282 } 3283 3284 /** 3285 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3286 * @phba: lpfc_hba pointer. 3287 * @vpt_wwpn: vport wwpn by reference. 3288 * @tgt_wwpn: target wwpn by reference. 3289 * @lun: the fc lun for setting oas state. 3290 * @oas_state: the oas state to be set to the oas_lun. 3291 * @pri: priority 3292 * 3293 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3294 * a lun for OAS operations. 3295 * 3296 * Return: 3297 * SUCCESS: 0 3298 * -ENOMEM: failed to enable an lun for OAS operations 3299 * -EPERM: OAS is not enabled 3300 */ 3301 static ssize_t 3302 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3303 uint8_t tgt_wwpn[], uint64_t lun, 3304 uint32_t oas_state, uint8_t pri) 3305 { 3306 3307 int rc; 3308 3309 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3310 oas_state, pri); 3311 return rc; 3312 } 3313 3314 /** 3315 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3316 * @dev: class device that is converted into a Scsi_host. 3317 * @attr: device attribute, not used. 3318 * @buf: buffer for passing information. 3319 * 3320 * This routine returns a lun enabled for OAS each time the function 3321 * is called. 3322 * 3323 * Returns: 3324 * SUCCESS: size of formatted string. 3325 * -EFAULT: target or vport wwpn was not set properly. 3326 * -EPERM: oas is not enabled. 3327 **/ 3328 static ssize_t 3329 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3330 char *buf) 3331 { 3332 struct Scsi_Host *shost = class_to_shost(dev); 3333 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3334 3335 uint64_t oas_lun; 3336 int len = 0; 3337 3338 if (!phba->cfg_fof) 3339 return -EPERM; 3340 3341 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3342 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3343 return -EFAULT; 3344 3345 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3346 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3347 return -EFAULT; 3348 3349 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3350 phba->cfg_oas_tgt_wwpn, 3351 &phba->cfg_oas_lun_status, 3352 &phba->cfg_oas_priority); 3353 if (oas_lun != NOT_OAS_ENABLED_LUN) 3354 phba->cfg_oas_flags |= OAS_LUN_VALID; 3355 3356 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3357 3358 return len; 3359 } 3360 3361 /** 3362 * lpfc_oas_lun_store - Sets the OAS state for lun 3363 * @dev: class device that is converted into a Scsi_host. 3364 * @attr: device attribute, not used. 3365 * @buf: buffer for passing information. 3366 * @count: size of the formatting string 3367 * 3368 * This function sets the OAS state for lun. Before this function is called, 3369 * the vport wwpn, target wwpn, and oas state need to be set. 3370 * 3371 * Returns: 3372 * SUCCESS: size of formatted string. 3373 * -EFAULT: target or vport wwpn was not set properly. 3374 * -EPERM: oas is not enabled. 3375 * size of formatted string. 3376 **/ 3377 static ssize_t 3378 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3379 const char *buf, size_t count) 3380 { 3381 struct Scsi_Host *shost = class_to_shost(dev); 3382 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3383 uint64_t scsi_lun; 3384 uint32_t pri; 3385 ssize_t rc; 3386 3387 if (!phba->cfg_fof) 3388 return -EPERM; 3389 3390 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3391 return -EFAULT; 3392 3393 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3394 return -EFAULT; 3395 3396 if (!isdigit(buf[0])) 3397 return -EINVAL; 3398 3399 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3400 return -EINVAL; 3401 3402 pri = phba->cfg_oas_priority; 3403 if (pri == 0) 3404 pri = phba->cfg_XLanePriority; 3405 3406 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3407 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3408 "priority 0x%x with oas state %d\n", 3409 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3410 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3411 pri, phba->cfg_oas_lun_state); 3412 3413 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3414 phba->cfg_oas_tgt_wwpn, scsi_lun, 3415 phba->cfg_oas_lun_state, pri); 3416 if (rc) 3417 return rc; 3418 3419 return count; 3420 } 3421 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3422 lpfc_oas_lun_show, lpfc_oas_lun_store); 3423 3424 int lpfc_enable_nvmet_cnt; 3425 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3426 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3427 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3428 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3429 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3430 3431 static int lpfc_poll = 0; 3432 module_param(lpfc_poll, int, S_IRUGO); 3433 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3434 " 0 - none," 3435 " 1 - poll with interrupts enabled" 3436 " 3 - poll and disable FCP ring interrupts"); 3437 3438 static DEVICE_ATTR_RW(lpfc_poll); 3439 3440 int lpfc_no_hba_reset_cnt; 3441 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3442 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3443 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3444 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3445 3446 LPFC_ATTR(sli_mode, 3, 3, 3, 3447 "SLI mode selector: 3 - select SLI-3"); 3448 3449 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3450 "Enable NPIV functionality"); 3451 3452 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3453 "FCF Fast failover=1 Priority failover=2"); 3454 3455 /* 3456 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3457 # 0x0 = disabled, XRI/OXID use not tracked. 3458 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3459 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3460 */ 3461 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3462 "Enable RRQ functionality"); 3463 3464 /* 3465 # lpfc_suppress_link_up: Bring link up at initialization 3466 # 0x0 = bring link up (issue MBX_INIT_LINK) 3467 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3468 # 0x2 = never bring up link 3469 # Default value is 0. 3470 */ 3471 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3472 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3473 "Suppress Link Up at initialization"); 3474 3475 static ssize_t 3476 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3477 { 3478 struct Scsi_Host *shost = class_to_shost(dev); 3479 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3480 3481 return scnprintf(buf, PAGE_SIZE, "%d\n", 3482 phba->sli4_hba.pc_sli4_params.pls); 3483 } 3484 static DEVICE_ATTR(pls, 0444, 3485 lpfc_pls_show, NULL); 3486 3487 static ssize_t 3488 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3489 { 3490 struct Scsi_Host *shost = class_to_shost(dev); 3491 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3492 3493 return scnprintf(buf, PAGE_SIZE, "%d\n", 3494 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3495 } 3496 static DEVICE_ATTR(pt, 0444, 3497 lpfc_pt_show, NULL); 3498 3499 /* 3500 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3501 # 1 - (1024) 3502 # 2 - (2048) 3503 # 3 - (3072) 3504 # 4 - (4096) 3505 # 5 - (5120) 3506 */ 3507 static ssize_t 3508 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3509 { 3510 struct Scsi_Host *shost = class_to_shost(dev); 3511 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3512 3513 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3514 } 3515 3516 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3517 lpfc_iocb_hw_show, NULL); 3518 static ssize_t 3519 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3520 { 3521 struct Scsi_Host *shost = class_to_shost(dev); 3522 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3523 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3524 3525 return scnprintf(buf, PAGE_SIZE, "%d\n", 3526 pring ? pring->txq_max : 0); 3527 } 3528 3529 static DEVICE_ATTR(txq_hw, S_IRUGO, 3530 lpfc_txq_hw_show, NULL); 3531 static ssize_t 3532 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3533 char *buf) 3534 { 3535 struct Scsi_Host *shost = class_to_shost(dev); 3536 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3537 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3538 3539 return scnprintf(buf, PAGE_SIZE, "%d\n", 3540 pring ? pring->txcmplq_max : 0); 3541 } 3542 3543 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3544 lpfc_txcmplq_hw_show, NULL); 3545 3546 /* 3547 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3548 # until the timer expires. Value range is [0,255]. Default value is 30. 3549 */ 3550 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3551 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3552 module_param(lpfc_nodev_tmo, int, 0); 3553 MODULE_PARM_DESC(lpfc_nodev_tmo, 3554 "Seconds driver will hold I/O waiting " 3555 "for a device to come back"); 3556 3557 /** 3558 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3559 * @dev: class converted to a Scsi_host structure. 3560 * @attr: device attribute, not used. 3561 * @buf: on return contains the dev loss timeout in decimal. 3562 * 3563 * Returns: size of formatted string. 3564 **/ 3565 static ssize_t 3566 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3567 char *buf) 3568 { 3569 struct Scsi_Host *shost = class_to_shost(dev); 3570 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3571 3572 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3573 } 3574 3575 /** 3576 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3577 * @vport: lpfc vport structure pointer. 3578 * @val: contains the nodev timeout value. 3579 * 3580 * Description: 3581 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3582 * a kernel error message is printed and zero is returned. 3583 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3584 * Otherwise nodev tmo is set to the default value. 3585 * 3586 * Returns: 3587 * zero if already set or if val is in range 3588 * -EINVAL val out of range 3589 **/ 3590 static int 3591 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3592 { 3593 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3594 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3595 if (val != LPFC_DEF_DEVLOSS_TMO) 3596 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3597 "0407 Ignoring lpfc_nodev_tmo module " 3598 "parameter because lpfc_devloss_tmo " 3599 "is set.\n"); 3600 return 0; 3601 } 3602 3603 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3604 vport->cfg_nodev_tmo = val; 3605 vport->cfg_devloss_tmo = val; 3606 return 0; 3607 } 3608 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3609 "0400 lpfc_nodev_tmo attribute cannot be set to" 3610 " %d, allowed range is [%d, %d]\n", 3611 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3612 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3613 return -EINVAL; 3614 } 3615 3616 /** 3617 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3618 * @vport: lpfc vport structure pointer. 3619 * 3620 * Description: 3621 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3622 **/ 3623 static void 3624 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3625 { 3626 struct Scsi_Host *shost; 3627 struct lpfc_nodelist *ndlp; 3628 #if (IS_ENABLED(CONFIG_NVME_FC)) 3629 struct lpfc_nvme_rport *rport; 3630 struct nvme_fc_remote_port *remoteport = NULL; 3631 #endif 3632 3633 shost = lpfc_shost_from_vport(vport); 3634 spin_lock_irq(shost->host_lock); 3635 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3636 if (ndlp->rport) 3637 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3638 #if (IS_ENABLED(CONFIG_NVME_FC)) 3639 spin_lock(&ndlp->lock); 3640 rport = lpfc_ndlp_get_nrport(ndlp); 3641 if (rport) 3642 remoteport = rport->remoteport; 3643 spin_unlock(&ndlp->lock); 3644 if (rport && remoteport) 3645 nvme_fc_set_remoteport_devloss(remoteport, 3646 vport->cfg_devloss_tmo); 3647 #endif 3648 } 3649 spin_unlock_irq(shost->host_lock); 3650 } 3651 3652 /** 3653 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3654 * @vport: lpfc vport structure pointer. 3655 * @val: contains the tmo value. 3656 * 3657 * Description: 3658 * If the devloss tmo is already set or the vport dev loss tmo has changed 3659 * then a kernel error message is printed and zero is returned. 3660 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3661 * Otherwise nodev tmo is set to the default value. 3662 * 3663 * Returns: 3664 * zero if already set or if val is in range 3665 * -EINVAL val out of range 3666 **/ 3667 static int 3668 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3669 { 3670 if (vport->dev_loss_tmo_changed || 3671 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3672 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3673 "0401 Ignoring change to lpfc_nodev_tmo " 3674 "because lpfc_devloss_tmo is set.\n"); 3675 return 0; 3676 } 3677 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3678 vport->cfg_nodev_tmo = val; 3679 vport->cfg_devloss_tmo = val; 3680 /* 3681 * For compat: set the fc_host dev loss so new rports 3682 * will get the value. 3683 */ 3684 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3685 lpfc_update_rport_devloss_tmo(vport); 3686 return 0; 3687 } 3688 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3689 "0403 lpfc_nodev_tmo attribute cannot be set to " 3690 "%d, allowed range is [%d, %d]\n", 3691 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3692 return -EINVAL; 3693 } 3694 3695 lpfc_vport_param_store(nodev_tmo) 3696 3697 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3698 3699 /* 3700 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3701 # disappear until the timer expires. Value range is [0,255]. Default 3702 # value is 30. 3703 */ 3704 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3705 MODULE_PARM_DESC(lpfc_devloss_tmo, 3706 "Seconds driver will hold I/O waiting " 3707 "for a device to come back"); 3708 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3709 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3710 lpfc_vport_param_show(devloss_tmo) 3711 3712 /** 3713 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3714 * @vport: lpfc vport structure pointer. 3715 * @val: contains the tmo value. 3716 * 3717 * Description: 3718 * If val is in a valid range then set the vport nodev tmo, 3719 * devloss tmo, also set the vport dev loss tmo changed flag. 3720 * Else a kernel error message is printed. 3721 * 3722 * Returns: 3723 * zero if val is in range 3724 * -EINVAL val out of range 3725 **/ 3726 static int 3727 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3728 { 3729 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3730 vport->cfg_nodev_tmo = val; 3731 vport->cfg_devloss_tmo = val; 3732 vport->dev_loss_tmo_changed = 1; 3733 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3734 lpfc_update_rport_devloss_tmo(vport); 3735 return 0; 3736 } 3737 3738 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3739 "0404 lpfc_devloss_tmo attribute cannot be set to " 3740 "%d, allowed range is [%d, %d]\n", 3741 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3742 return -EINVAL; 3743 } 3744 3745 lpfc_vport_param_store(devloss_tmo) 3746 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3747 3748 /* 3749 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3750 * lpfc_suppress_rsp = 0 Disable 3751 * lpfc_suppress_rsp = 1 Enable (default) 3752 * 3753 */ 3754 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3755 "Enable suppress rsp feature is firmware supports it"); 3756 3757 /* 3758 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3759 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3760 * lpfc_nvmet_mrq = 1 use a single RQ pair 3761 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3762 * 3763 */ 3764 LPFC_ATTR_R(nvmet_mrq, 3765 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3766 "Specify number of RQ pairs for processing NVMET cmds"); 3767 3768 /* 3769 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3770 * to each NVMET RQ. Range 64 to 2048, default is 512. 3771 */ 3772 LPFC_ATTR_R(nvmet_mrq_post, 3773 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3774 LPFC_NVMET_RQE_DEF_COUNT, 3775 "Specify number of RQ buffers to initially post"); 3776 3777 /* 3778 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3779 * Supported Values: 1 - register just FCP 3780 * 3 - register both FCP and NVME 3781 * Supported values are [1,3]. Default value is 3 3782 */ 3783 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3784 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3785 "Enable FC4 Protocol support - FCP / NVME"); 3786 3787 /* 3788 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3789 # deluged with LOTS of information. 3790 # You can set a bit mask to record specific types of verbose messages: 3791 # See lpfc_logmsh.h for definitions. 3792 */ 3793 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3794 "Verbose logging bit-mask"); 3795 3796 /* 3797 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3798 # objects that have been registered with the nameserver after login. 3799 */ 3800 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3801 "Deregister nameserver objects before LOGO"); 3802 3803 /* 3804 # lun_queue_depth: This parameter is used to limit the number of outstanding 3805 # commands per FCP LUN. 3806 */ 3807 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3808 "Max number of FCP commands we can queue to a specific LUN"); 3809 3810 /* 3811 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3812 # commands per target port. Value range is [10,65535]. Default value is 65535. 3813 */ 3814 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3815 module_param(lpfc_tgt_queue_depth, uint, 0444); 3816 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3817 lpfc_vport_param_show(tgt_queue_depth); 3818 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3819 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3820 3821 /** 3822 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3823 * @vport: lpfc vport structure pointer. 3824 * @val: integer attribute value. 3825 * 3826 * Description: Sets the parameter to the new value. 3827 * 3828 * Returns: 3829 * zero on success 3830 * -EINVAL if val is invalid 3831 */ 3832 static int 3833 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3834 { 3835 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3836 struct lpfc_nodelist *ndlp; 3837 3838 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3839 return -EINVAL; 3840 3841 if (val == vport->cfg_tgt_queue_depth) 3842 return 0; 3843 3844 spin_lock_irq(shost->host_lock); 3845 vport->cfg_tgt_queue_depth = val; 3846 3847 /* Next loop thru nodelist and change cmd_qdepth */ 3848 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3849 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3850 3851 spin_unlock_irq(shost->host_lock); 3852 return 0; 3853 } 3854 3855 lpfc_vport_param_store(tgt_queue_depth); 3856 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3857 3858 /* 3859 # hba_queue_depth: This parameter is used to limit the number of outstanding 3860 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3861 # value is greater than the maximum number of exchanges supported by the HBA, 3862 # then maximum number of exchanges supported by the HBA is used to determine 3863 # the hba_queue_depth. 3864 */ 3865 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3866 "Max number of FCP commands we can queue to a lpfc HBA"); 3867 3868 /* 3869 # peer_port_login: This parameter allows/prevents logins 3870 # between peer ports hosted on the same physical port. 3871 # When this parameter is set 0 peer ports of same physical port 3872 # are not allowed to login to each other. 3873 # When this parameter is set 1 peer ports of same physical port 3874 # are allowed to login to each other. 3875 # Default value of this parameter is 0. 3876 */ 3877 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3878 "Allow peer ports on the same physical port to login to each " 3879 "other."); 3880 3881 /* 3882 # restrict_login: This parameter allows/prevents logins 3883 # between Virtual Ports and remote initiators. 3884 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3885 # other initiators and will attempt to PLOGI all remote ports. 3886 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3887 # remote ports and will not attempt to PLOGI to other initiators. 3888 # This parameter does not restrict to the physical port. 3889 # This parameter does not restrict logins to Fabric resident remote ports. 3890 # Default value of this parameter is 1. 3891 */ 3892 static int lpfc_restrict_login = 1; 3893 module_param(lpfc_restrict_login, int, S_IRUGO); 3894 MODULE_PARM_DESC(lpfc_restrict_login, 3895 "Restrict virtual ports login to remote initiators."); 3896 lpfc_vport_param_show(restrict_login); 3897 3898 /** 3899 * lpfc_restrict_login_init - Set the vport restrict login flag 3900 * @vport: lpfc vport structure pointer. 3901 * @val: contains the restrict login value. 3902 * 3903 * Description: 3904 * If val is not in a valid range then log a kernel error message and set 3905 * the vport restrict login to one. 3906 * If the port type is physical clear the restrict login flag and return. 3907 * Else set the restrict login flag to val. 3908 * 3909 * Returns: 3910 * zero if val is in range 3911 * -EINVAL val out of range 3912 **/ 3913 static int 3914 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3915 { 3916 if (val < 0 || val > 1) { 3917 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3918 "0422 lpfc_restrict_login attribute cannot " 3919 "be set to %d, allowed range is [0, 1]\n", 3920 val); 3921 vport->cfg_restrict_login = 1; 3922 return -EINVAL; 3923 } 3924 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3925 vport->cfg_restrict_login = 0; 3926 return 0; 3927 } 3928 vport->cfg_restrict_login = val; 3929 return 0; 3930 } 3931 3932 /** 3933 * lpfc_restrict_login_set - Set the vport restrict login flag 3934 * @vport: lpfc vport structure pointer. 3935 * @val: contains the restrict login value. 3936 * 3937 * Description: 3938 * If val is not in a valid range then log a kernel error message and set 3939 * the vport restrict login to one. 3940 * If the port type is physical and the val is not zero log a kernel 3941 * error message, clear the restrict login flag and return zero. 3942 * Else set the restrict login flag to val. 3943 * 3944 * Returns: 3945 * zero if val is in range 3946 * -EINVAL val out of range 3947 **/ 3948 static int 3949 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3950 { 3951 if (val < 0 || val > 1) { 3952 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3953 "0425 lpfc_restrict_login attribute cannot " 3954 "be set to %d, allowed range is [0, 1]\n", 3955 val); 3956 vport->cfg_restrict_login = 1; 3957 return -EINVAL; 3958 } 3959 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3960 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3961 "0468 lpfc_restrict_login must be 0 for " 3962 "Physical ports.\n"); 3963 vport->cfg_restrict_login = 0; 3964 return 0; 3965 } 3966 vport->cfg_restrict_login = val; 3967 return 0; 3968 } 3969 lpfc_vport_param_store(restrict_login); 3970 static DEVICE_ATTR_RW(lpfc_restrict_login); 3971 3972 /* 3973 # Some disk devices have a "select ID" or "select Target" capability. 3974 # From a protocol standpoint "select ID" usually means select the 3975 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3976 # annex" which contains a table that maps a "select ID" (a number 3977 # between 0 and 7F) to an ALPA. By default, for compatibility with 3978 # older drivers, the lpfc driver scans this table from low ALPA to high 3979 # ALPA. 3980 # 3981 # Turning on the scan-down variable (on = 1, off = 0) will 3982 # cause the lpfc driver to use an inverted table, effectively 3983 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3984 # 3985 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3986 # and will not work across a fabric. Also this parameter will take 3987 # effect only in the case when ALPA map is not available.) 3988 */ 3989 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3990 "Start scanning for devices from highest ALPA to lowest"); 3991 3992 /* 3993 # lpfc_topology: link topology for init link 3994 # 0x0 = attempt loop mode then point-to-point 3995 # 0x01 = internal loopback mode 3996 # 0x02 = attempt point-to-point mode only 3997 # 0x04 = attempt loop mode only 3998 # 0x06 = attempt point-to-point mode then loop 3999 # Set point-to-point mode if you want to run as an N_Port. 4000 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4001 # Default value is 0. 4002 */ 4003 LPFC_ATTR(topology, 0, 0, 6, 4004 "Select Fibre Channel topology"); 4005 4006 /** 4007 * lpfc_topology_set - Set the adapters topology field 4008 * @dev: class device that is converted into a scsi_host. 4009 * @attr:device attribute, not used. 4010 * @buf: buffer for passing information. 4011 * @count: size of the data buffer. 4012 * 4013 * Description: 4014 * If val is in a valid range then set the adapter's topology field and 4015 * issue a lip; if the lip fails reset the topology to the old value. 4016 * 4017 * If the value is not in range log a kernel error message and return an error. 4018 * 4019 * Returns: 4020 * zero if val is in range and lip okay 4021 * non-zero return value from lpfc_issue_lip() 4022 * -EINVAL val out of range 4023 **/ 4024 static ssize_t 4025 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4026 const char *buf, size_t count) 4027 { 4028 struct Scsi_Host *shost = class_to_shost(dev); 4029 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4030 struct lpfc_hba *phba = vport->phba; 4031 int val = 0; 4032 int nolip = 0; 4033 const char *val_buf = buf; 4034 int err; 4035 uint32_t prev_val; 4036 4037 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4038 nolip = 1; 4039 val_buf = &buf[strlen("nolip ")]; 4040 } 4041 4042 if (!isdigit(val_buf[0])) 4043 return -EINVAL; 4044 if (sscanf(val_buf, "%i", &val) != 1) 4045 return -EINVAL; 4046 4047 if (val >= 0 && val <= 6) { 4048 prev_val = phba->cfg_topology; 4049 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4050 val == 4) { 4051 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4052 "3113 Loop mode not supported at speed %d\n", 4053 val); 4054 return -EINVAL; 4055 } 4056 /* 4057 * The 'topology' is not a configurable parameter if : 4058 * - persistent topology enabled 4059 * - G7/G6 with no private loop support 4060 */ 4061 4062 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4063 (!phba->sli4_hba.pc_sli4_params.pls && 4064 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4065 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) && 4066 val == 4) { 4067 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4068 "3114 Loop mode not supported\n"); 4069 return -EINVAL; 4070 } 4071 phba->cfg_topology = val; 4072 if (nolip) 4073 return strlen(buf); 4074 4075 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4076 "3054 lpfc_topology changed from %d to %d\n", 4077 prev_val, val); 4078 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4079 phba->fc_topology_changed = 1; 4080 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4081 if (err) { 4082 phba->cfg_topology = prev_val; 4083 return -EINVAL; 4084 } else 4085 return strlen(buf); 4086 } 4087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4088 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4089 "allowed range is [0, 6]\n", 4090 phba->brd_no, val); 4091 return -EINVAL; 4092 } 4093 4094 lpfc_param_show(topology) 4095 static DEVICE_ATTR_RW(lpfc_topology); 4096 4097 /** 4098 * lpfc_static_vport_show: Read callback function for 4099 * lpfc_static_vport sysfs file. 4100 * @dev: Pointer to class device object. 4101 * @attr: device attribute structure. 4102 * @buf: Data buffer. 4103 * 4104 * This function is the read call back function for 4105 * lpfc_static_vport sysfs file. The lpfc_static_vport 4106 * sysfs file report the mageability of the vport. 4107 **/ 4108 static ssize_t 4109 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4110 char *buf) 4111 { 4112 struct Scsi_Host *shost = class_to_shost(dev); 4113 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4114 if (vport->vport_flag & STATIC_VPORT) 4115 sprintf(buf, "1\n"); 4116 else 4117 sprintf(buf, "0\n"); 4118 4119 return strlen(buf); 4120 } 4121 4122 /* 4123 * Sysfs attribute to control the statistical data collection. 4124 */ 4125 static DEVICE_ATTR_RO(lpfc_static_vport); 4126 4127 /** 4128 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4129 * @dev: Pointer to class device. 4130 * @attr: Unused. 4131 * @buf: Data buffer. 4132 * @count: Size of the data buffer. 4133 * 4134 * This function get called when a user write to the lpfc_stat_data_ctrl 4135 * sysfs file. This function parse the command written to the sysfs file 4136 * and take appropriate action. These commands are used for controlling 4137 * driver statistical data collection. 4138 * Following are the command this function handles. 4139 * 4140 * setbucket <bucket_type> <base> <step> 4141 * = Set the latency buckets. 4142 * destroybucket = destroy all the buckets. 4143 * start = start data collection 4144 * stop = stop data collection 4145 * reset = reset the collected data 4146 **/ 4147 static ssize_t 4148 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4149 const char *buf, size_t count) 4150 { 4151 struct Scsi_Host *shost = class_to_shost(dev); 4152 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4153 struct lpfc_hba *phba = vport->phba; 4154 #define LPFC_MAX_DATA_CTRL_LEN 1024 4155 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4156 unsigned long i; 4157 char *str_ptr, *token; 4158 struct lpfc_vport **vports; 4159 struct Scsi_Host *v_shost; 4160 char *bucket_type_str, *base_str, *step_str; 4161 unsigned long base, step, bucket_type; 4162 4163 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4164 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4165 return -EINVAL; 4166 4167 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4168 str_ptr = &bucket_data[0]; 4169 /* Ignore this token - this is command token */ 4170 token = strsep(&str_ptr, "\t "); 4171 if (!token) 4172 return -EINVAL; 4173 4174 bucket_type_str = strsep(&str_ptr, "\t "); 4175 if (!bucket_type_str) 4176 return -EINVAL; 4177 4178 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4179 bucket_type = LPFC_LINEAR_BUCKET; 4180 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4181 bucket_type = LPFC_POWER2_BUCKET; 4182 else 4183 return -EINVAL; 4184 4185 base_str = strsep(&str_ptr, "\t "); 4186 if (!base_str) 4187 return -EINVAL; 4188 base = simple_strtoul(base_str, NULL, 0); 4189 4190 step_str = strsep(&str_ptr, "\t "); 4191 if (!step_str) 4192 return -EINVAL; 4193 step = simple_strtoul(step_str, NULL, 0); 4194 if (!step) 4195 return -EINVAL; 4196 4197 /* Block the data collection for every vport */ 4198 vports = lpfc_create_vport_work_array(phba); 4199 if (vports == NULL) 4200 return -ENOMEM; 4201 4202 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4203 v_shost = lpfc_shost_from_vport(vports[i]); 4204 spin_lock_irq(v_shost->host_lock); 4205 /* Block and reset data collection */ 4206 vports[i]->stat_data_blocked = 1; 4207 if (vports[i]->stat_data_enabled) 4208 lpfc_vport_reset_stat_data(vports[i]); 4209 spin_unlock_irq(v_shost->host_lock); 4210 } 4211 4212 /* Set the bucket attributes */ 4213 phba->bucket_type = bucket_type; 4214 phba->bucket_base = base; 4215 phba->bucket_step = step; 4216 4217 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4218 v_shost = lpfc_shost_from_vport(vports[i]); 4219 4220 /* Unblock data collection */ 4221 spin_lock_irq(v_shost->host_lock); 4222 vports[i]->stat_data_blocked = 0; 4223 spin_unlock_irq(v_shost->host_lock); 4224 } 4225 lpfc_destroy_vport_work_array(phba, vports); 4226 return strlen(buf); 4227 } 4228 4229 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4230 vports = lpfc_create_vport_work_array(phba); 4231 if (vports == NULL) 4232 return -ENOMEM; 4233 4234 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4235 v_shost = lpfc_shost_from_vport(vports[i]); 4236 spin_lock_irq(shost->host_lock); 4237 vports[i]->stat_data_blocked = 1; 4238 lpfc_free_bucket(vport); 4239 vport->stat_data_enabled = 0; 4240 vports[i]->stat_data_blocked = 0; 4241 spin_unlock_irq(shost->host_lock); 4242 } 4243 lpfc_destroy_vport_work_array(phba, vports); 4244 phba->bucket_type = LPFC_NO_BUCKET; 4245 phba->bucket_base = 0; 4246 phba->bucket_step = 0; 4247 return strlen(buf); 4248 } 4249 4250 if (!strncmp(buf, "start", strlen("start"))) { 4251 /* If no buckets configured return error */ 4252 if (phba->bucket_type == LPFC_NO_BUCKET) 4253 return -EINVAL; 4254 spin_lock_irq(shost->host_lock); 4255 if (vport->stat_data_enabled) { 4256 spin_unlock_irq(shost->host_lock); 4257 return strlen(buf); 4258 } 4259 lpfc_alloc_bucket(vport); 4260 vport->stat_data_enabled = 1; 4261 spin_unlock_irq(shost->host_lock); 4262 return strlen(buf); 4263 } 4264 4265 if (!strncmp(buf, "stop", strlen("stop"))) { 4266 spin_lock_irq(shost->host_lock); 4267 if (vport->stat_data_enabled == 0) { 4268 spin_unlock_irq(shost->host_lock); 4269 return strlen(buf); 4270 } 4271 lpfc_free_bucket(vport); 4272 vport->stat_data_enabled = 0; 4273 spin_unlock_irq(shost->host_lock); 4274 return strlen(buf); 4275 } 4276 4277 if (!strncmp(buf, "reset", strlen("reset"))) { 4278 if ((phba->bucket_type == LPFC_NO_BUCKET) 4279 || !vport->stat_data_enabled) 4280 return strlen(buf); 4281 spin_lock_irq(shost->host_lock); 4282 vport->stat_data_blocked = 1; 4283 lpfc_vport_reset_stat_data(vport); 4284 vport->stat_data_blocked = 0; 4285 spin_unlock_irq(shost->host_lock); 4286 return strlen(buf); 4287 } 4288 return -EINVAL; 4289 } 4290 4291 4292 /** 4293 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4294 * @dev: Pointer to class device. 4295 * @attr: Unused. 4296 * @buf: Data buffer. 4297 * 4298 * This function is the read call back function for 4299 * lpfc_stat_data_ctrl sysfs file. This function report the 4300 * current statistical data collection state. 4301 **/ 4302 static ssize_t 4303 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4304 char *buf) 4305 { 4306 struct Scsi_Host *shost = class_to_shost(dev); 4307 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4308 struct lpfc_hba *phba = vport->phba; 4309 int index = 0; 4310 int i; 4311 char *bucket_type; 4312 unsigned long bucket_value; 4313 4314 switch (phba->bucket_type) { 4315 case LPFC_LINEAR_BUCKET: 4316 bucket_type = "linear"; 4317 break; 4318 case LPFC_POWER2_BUCKET: 4319 bucket_type = "power2"; 4320 break; 4321 default: 4322 bucket_type = "No Bucket"; 4323 break; 4324 } 4325 4326 sprintf(&buf[index], "Statistical Data enabled :%d, " 4327 "blocked :%d, Bucket type :%s, Bucket base :%d," 4328 " Bucket step :%d\nLatency Ranges :", 4329 vport->stat_data_enabled, vport->stat_data_blocked, 4330 bucket_type, phba->bucket_base, phba->bucket_step); 4331 index = strlen(buf); 4332 if (phba->bucket_type != LPFC_NO_BUCKET) { 4333 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4334 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4335 bucket_value = phba->bucket_base + 4336 phba->bucket_step * i; 4337 else 4338 bucket_value = phba->bucket_base + 4339 (1 << i) * phba->bucket_step; 4340 4341 if (index + 10 > PAGE_SIZE) 4342 break; 4343 sprintf(&buf[index], "%08ld ", bucket_value); 4344 index = strlen(buf); 4345 } 4346 } 4347 sprintf(&buf[index], "\n"); 4348 return strlen(buf); 4349 } 4350 4351 /* 4352 * Sysfs attribute to control the statistical data collection. 4353 */ 4354 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4355 4356 /* 4357 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4358 */ 4359 4360 /* 4361 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4362 * for each target. 4363 */ 4364 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4365 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4366 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4367 4368 4369 /** 4370 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4371 * @filp: sysfs file 4372 * @kobj: Pointer to the kernel object 4373 * @bin_attr: Attribute object 4374 * @buf: Buffer pointer 4375 * @off: File offset 4376 * @count: Buffer size 4377 * 4378 * This function is the read call back function for lpfc_drvr_stat_data 4379 * sysfs file. This function export the statistical data to user 4380 * applications. 4381 **/ 4382 static ssize_t 4383 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4384 struct bin_attribute *bin_attr, 4385 char *buf, loff_t off, size_t count) 4386 { 4387 struct device *dev = container_of(kobj, struct device, 4388 kobj); 4389 struct Scsi_Host *shost = class_to_shost(dev); 4390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4391 struct lpfc_hba *phba = vport->phba; 4392 int i = 0, index = 0; 4393 unsigned long nport_index; 4394 struct lpfc_nodelist *ndlp = NULL; 4395 nport_index = (unsigned long)off / 4396 MAX_STAT_DATA_SIZE_PER_TARGET; 4397 4398 if (!vport->stat_data_enabled || vport->stat_data_blocked 4399 || (phba->bucket_type == LPFC_NO_BUCKET)) 4400 return 0; 4401 4402 spin_lock_irq(shost->host_lock); 4403 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4404 if (!ndlp->lat_data) 4405 continue; 4406 4407 if (nport_index > 0) { 4408 nport_index--; 4409 continue; 4410 } 4411 4412 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4413 > count) 4414 break; 4415 4416 if (!ndlp->lat_data) 4417 continue; 4418 4419 /* Print the WWN */ 4420 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4421 ndlp->nlp_portname.u.wwn[0], 4422 ndlp->nlp_portname.u.wwn[1], 4423 ndlp->nlp_portname.u.wwn[2], 4424 ndlp->nlp_portname.u.wwn[3], 4425 ndlp->nlp_portname.u.wwn[4], 4426 ndlp->nlp_portname.u.wwn[5], 4427 ndlp->nlp_portname.u.wwn[6], 4428 ndlp->nlp_portname.u.wwn[7]); 4429 4430 index = strlen(buf); 4431 4432 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4433 sprintf(&buf[index], "%010u,", 4434 ndlp->lat_data[i].cmd_count); 4435 index = strlen(buf); 4436 } 4437 sprintf(&buf[index], "\n"); 4438 index = strlen(buf); 4439 } 4440 spin_unlock_irq(shost->host_lock); 4441 return index; 4442 } 4443 4444 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4445 .attr = { 4446 .name = "lpfc_drvr_stat_data", 4447 .mode = S_IRUSR, 4448 }, 4449 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4450 .read = sysfs_drvr_stat_data_read, 4451 .write = NULL, 4452 }; 4453 4454 /* 4455 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4456 # connection. 4457 # Value range is [0,16]. Default value is 0. 4458 */ 4459 /** 4460 * lpfc_link_speed_set - Set the adapters link speed 4461 * @dev: Pointer to class device. 4462 * @attr: Unused. 4463 * @buf: Data buffer. 4464 * @count: Size of the data buffer. 4465 * 4466 * Description: 4467 * If val is in a valid range then set the adapter's link speed field and 4468 * issue a lip; if the lip fails reset the link speed to the old value. 4469 * 4470 * Notes: 4471 * If the value is not in range log a kernel error message and return an error. 4472 * 4473 * Returns: 4474 * zero if val is in range and lip okay. 4475 * non-zero return value from lpfc_issue_lip() 4476 * -EINVAL val out of range 4477 **/ 4478 static ssize_t 4479 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4480 const char *buf, size_t count) 4481 { 4482 struct Scsi_Host *shost = class_to_shost(dev); 4483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4484 struct lpfc_hba *phba = vport->phba; 4485 int val = LPFC_USER_LINK_SPEED_AUTO; 4486 int nolip = 0; 4487 const char *val_buf = buf; 4488 int err; 4489 uint32_t prev_val, if_type; 4490 4491 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4492 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4493 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4494 return -EPERM; 4495 4496 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4497 nolip = 1; 4498 val_buf = &buf[strlen("nolip ")]; 4499 } 4500 4501 if (!isdigit(val_buf[0])) 4502 return -EINVAL; 4503 if (sscanf(val_buf, "%i", &val) != 1) 4504 return -EINVAL; 4505 4506 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4507 "3055 lpfc_link_speed changed from %d to %d %s\n", 4508 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4509 4510 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4511 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4512 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4513 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4514 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4515 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4516 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4517 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4519 "2879 lpfc_link_speed attribute cannot be set " 4520 "to %d. Speed is not supported by this port.\n", 4521 val); 4522 return -EINVAL; 4523 } 4524 if (val >= LPFC_USER_LINK_SPEED_16G && 4525 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4527 "3112 lpfc_link_speed attribute cannot be set " 4528 "to %d. Speed is not supported in loop mode.\n", 4529 val); 4530 return -EINVAL; 4531 } 4532 4533 switch (val) { 4534 case LPFC_USER_LINK_SPEED_AUTO: 4535 case LPFC_USER_LINK_SPEED_1G: 4536 case LPFC_USER_LINK_SPEED_2G: 4537 case LPFC_USER_LINK_SPEED_4G: 4538 case LPFC_USER_LINK_SPEED_8G: 4539 case LPFC_USER_LINK_SPEED_16G: 4540 case LPFC_USER_LINK_SPEED_32G: 4541 case LPFC_USER_LINK_SPEED_64G: 4542 prev_val = phba->cfg_link_speed; 4543 phba->cfg_link_speed = val; 4544 if (nolip) 4545 return strlen(buf); 4546 4547 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4548 if (err) { 4549 phba->cfg_link_speed = prev_val; 4550 return -EINVAL; 4551 } 4552 return strlen(buf); 4553 default: 4554 break; 4555 } 4556 4557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4558 "0469 lpfc_link_speed attribute cannot be set to %d, " 4559 "allowed values are [%s]\n", 4560 val, LPFC_LINK_SPEED_STRING); 4561 return -EINVAL; 4562 4563 } 4564 4565 static int lpfc_link_speed = 0; 4566 module_param(lpfc_link_speed, int, S_IRUGO); 4567 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4568 lpfc_param_show(link_speed) 4569 4570 /** 4571 * lpfc_link_speed_init - Set the adapters link speed 4572 * @phba: lpfc_hba pointer. 4573 * @val: link speed value. 4574 * 4575 * Description: 4576 * If val is in a valid range then set the adapter's link speed field. 4577 * 4578 * Notes: 4579 * If the value is not in range log a kernel error message, clear the link 4580 * speed and return an error. 4581 * 4582 * Returns: 4583 * zero if val saved. 4584 * -EINVAL val out of range 4585 **/ 4586 static int 4587 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4588 { 4589 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4591 "3111 lpfc_link_speed of %d cannot " 4592 "support loop mode, setting topology to default.\n", 4593 val); 4594 phba->cfg_topology = 0; 4595 } 4596 4597 switch (val) { 4598 case LPFC_USER_LINK_SPEED_AUTO: 4599 case LPFC_USER_LINK_SPEED_1G: 4600 case LPFC_USER_LINK_SPEED_2G: 4601 case LPFC_USER_LINK_SPEED_4G: 4602 case LPFC_USER_LINK_SPEED_8G: 4603 case LPFC_USER_LINK_SPEED_16G: 4604 case LPFC_USER_LINK_SPEED_32G: 4605 case LPFC_USER_LINK_SPEED_64G: 4606 phba->cfg_link_speed = val; 4607 return 0; 4608 default: 4609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4610 "0405 lpfc_link_speed attribute cannot " 4611 "be set to %d, allowed values are " 4612 "["LPFC_LINK_SPEED_STRING"]\n", val); 4613 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4614 return -EINVAL; 4615 } 4616 } 4617 4618 static DEVICE_ATTR_RW(lpfc_link_speed); 4619 4620 /* 4621 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4622 # 0 = aer disabled or not supported 4623 # 1 = aer supported and enabled (default) 4624 # Value range is [0,1]. Default value is 1. 4625 */ 4626 LPFC_ATTR(aer_support, 1, 0, 1, 4627 "Enable PCIe device AER support"); 4628 lpfc_param_show(aer_support) 4629 4630 /** 4631 * lpfc_aer_support_store - Set the adapter for aer support 4632 * 4633 * @dev: class device that is converted into a Scsi_host. 4634 * @attr: device attribute, not used. 4635 * @buf: containing enable or disable aer flag. 4636 * @count: unused variable. 4637 * 4638 * Description: 4639 * If the val is 1 and currently the device's AER capability was not 4640 * enabled, invoke the kernel's enable AER helper routine, trying to 4641 * enable the device's AER capability. If the helper routine enabling 4642 * AER returns success, update the device's cfg_aer_support flag to 4643 * indicate AER is supported by the device; otherwise, if the device 4644 * AER capability is already enabled to support AER, then do nothing. 4645 * 4646 * If the val is 0 and currently the device's AER support was enabled, 4647 * invoke the kernel's disable AER helper routine. After that, update 4648 * the device's cfg_aer_support flag to indicate AER is not supported 4649 * by the device; otherwise, if the device AER capability is already 4650 * disabled from supporting AER, then do nothing. 4651 * 4652 * Returns: 4653 * length of the buf on success if val is in range the intended mode 4654 * is supported. 4655 * -EINVAL if val out of range or intended mode is not supported. 4656 **/ 4657 static ssize_t 4658 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4659 const char *buf, size_t count) 4660 { 4661 struct Scsi_Host *shost = class_to_shost(dev); 4662 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4663 struct lpfc_hba *phba = vport->phba; 4664 int val = 0, rc = -EINVAL; 4665 4666 if (!isdigit(buf[0])) 4667 return -EINVAL; 4668 if (sscanf(buf, "%i", &val) != 1) 4669 return -EINVAL; 4670 4671 switch (val) { 4672 case 0: 4673 if (phba->hba_flag & HBA_AER_ENABLED) { 4674 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4675 if (!rc) { 4676 spin_lock_irq(&phba->hbalock); 4677 phba->hba_flag &= ~HBA_AER_ENABLED; 4678 spin_unlock_irq(&phba->hbalock); 4679 phba->cfg_aer_support = 0; 4680 rc = strlen(buf); 4681 } else 4682 rc = -EPERM; 4683 } else { 4684 phba->cfg_aer_support = 0; 4685 rc = strlen(buf); 4686 } 4687 break; 4688 case 1: 4689 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4690 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4691 if (!rc) { 4692 spin_lock_irq(&phba->hbalock); 4693 phba->hba_flag |= HBA_AER_ENABLED; 4694 spin_unlock_irq(&phba->hbalock); 4695 phba->cfg_aer_support = 1; 4696 rc = strlen(buf); 4697 } else 4698 rc = -EPERM; 4699 } else { 4700 phba->cfg_aer_support = 1; 4701 rc = strlen(buf); 4702 } 4703 break; 4704 default: 4705 rc = -EINVAL; 4706 break; 4707 } 4708 return rc; 4709 } 4710 4711 static DEVICE_ATTR_RW(lpfc_aer_support); 4712 4713 /** 4714 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4715 * @dev: class device that is converted into a Scsi_host. 4716 * @attr: device attribute, not used. 4717 * @buf: containing flag 1 for aer cleanup state. 4718 * @count: unused variable. 4719 * 4720 * Description: 4721 * If the @buf contains 1 and the device currently has the AER support 4722 * enabled, then invokes the kernel AER helper routine 4723 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4724 * error status register. 4725 * 4726 * Notes: 4727 * 4728 * Returns: 4729 * -EINVAL if the buf does not contain the 1 or the device is not currently 4730 * enabled with the AER support. 4731 **/ 4732 static ssize_t 4733 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4734 const char *buf, size_t count) 4735 { 4736 struct Scsi_Host *shost = class_to_shost(dev); 4737 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4738 struct lpfc_hba *phba = vport->phba; 4739 int val, rc = -1; 4740 4741 if (!isdigit(buf[0])) 4742 return -EINVAL; 4743 if (sscanf(buf, "%i", &val) != 1) 4744 return -EINVAL; 4745 if (val != 1) 4746 return -EINVAL; 4747 4748 if (phba->hba_flag & HBA_AER_ENABLED) 4749 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4750 4751 if (rc == 0) 4752 return strlen(buf); 4753 else 4754 return -EPERM; 4755 } 4756 4757 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4758 lpfc_aer_cleanup_state); 4759 4760 /** 4761 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4762 * 4763 * @dev: class device that is converted into a Scsi_host. 4764 * @attr: device attribute, not used. 4765 * @buf: containing the string the number of vfs to be enabled. 4766 * @count: unused variable. 4767 * 4768 * Description: 4769 * When this api is called either through user sysfs, the driver shall 4770 * try to enable or disable SR-IOV virtual functions according to the 4771 * following: 4772 * 4773 * If zero virtual function has been enabled to the physical function, 4774 * the driver shall invoke the pci enable virtual function api trying 4775 * to enable the virtual functions. If the nr_vfn provided is greater 4776 * than the maximum supported, the maximum virtual function number will 4777 * be used for invoking the api; otherwise, the nr_vfn provided shall 4778 * be used for invoking the api. If the api call returned success, the 4779 * actual number of virtual functions enabled will be set to the driver 4780 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4781 * cfg_sriov_nr_virtfn remains zero. 4782 * 4783 * If none-zero virtual functions have already been enabled to the 4784 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4785 * -EINVAL will be returned and the driver does nothing; 4786 * 4787 * If the nr_vfn provided is zero and none-zero virtual functions have 4788 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4789 * disabling virtual function api shall be invoded to disable all the 4790 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4791 * zero. Otherwise, if zero virtual function has been enabled, do 4792 * nothing. 4793 * 4794 * Returns: 4795 * length of the buf on success if val is in range the intended mode 4796 * is supported. 4797 * -EINVAL if val out of range or intended mode is not supported. 4798 **/ 4799 static ssize_t 4800 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4801 const char *buf, size_t count) 4802 { 4803 struct Scsi_Host *shost = class_to_shost(dev); 4804 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4805 struct lpfc_hba *phba = vport->phba; 4806 struct pci_dev *pdev = phba->pcidev; 4807 int val = 0, rc = -EINVAL; 4808 4809 /* Sanity check on user data */ 4810 if (!isdigit(buf[0])) 4811 return -EINVAL; 4812 if (sscanf(buf, "%i", &val) != 1) 4813 return -EINVAL; 4814 if (val < 0) 4815 return -EINVAL; 4816 4817 /* Request disabling virtual functions */ 4818 if (val == 0) { 4819 if (phba->cfg_sriov_nr_virtfn > 0) { 4820 pci_disable_sriov(pdev); 4821 phba->cfg_sriov_nr_virtfn = 0; 4822 } 4823 return strlen(buf); 4824 } 4825 4826 /* Request enabling virtual functions */ 4827 if (phba->cfg_sriov_nr_virtfn > 0) { 4828 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4829 "3018 There are %d virtual functions " 4830 "enabled on physical function.\n", 4831 phba->cfg_sriov_nr_virtfn); 4832 return -EEXIST; 4833 } 4834 4835 if (val <= LPFC_MAX_VFN_PER_PFN) 4836 phba->cfg_sriov_nr_virtfn = val; 4837 else { 4838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4839 "3019 Enabling %d virtual functions is not " 4840 "allowed.\n", val); 4841 return -EINVAL; 4842 } 4843 4844 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4845 if (rc) { 4846 phba->cfg_sriov_nr_virtfn = 0; 4847 rc = -EPERM; 4848 } else 4849 rc = strlen(buf); 4850 4851 return rc; 4852 } 4853 4854 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4855 "Enable PCIe device SR-IOV virtual fn"); 4856 4857 lpfc_param_show(sriov_nr_virtfn) 4858 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4859 4860 /** 4861 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4862 * 4863 * @dev: class device that is converted into a Scsi_host. 4864 * @attr: device attribute, not used. 4865 * @buf: containing the string the number of vfs to be enabled. 4866 * @count: unused variable. 4867 * 4868 * Description: 4869 * 4870 * Returns: 4871 * length of the buf on success if val is in range the intended mode 4872 * is supported. 4873 * -EINVAL if val out of range or intended mode is not supported. 4874 **/ 4875 static ssize_t 4876 lpfc_request_firmware_upgrade_store(struct device *dev, 4877 struct device_attribute *attr, 4878 const char *buf, size_t count) 4879 { 4880 struct Scsi_Host *shost = class_to_shost(dev); 4881 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4882 struct lpfc_hba *phba = vport->phba; 4883 int val = 0, rc; 4884 4885 /* Sanity check on user data */ 4886 if (!isdigit(buf[0])) 4887 return -EINVAL; 4888 if (sscanf(buf, "%i", &val) != 1) 4889 return -EINVAL; 4890 if (val != 1) 4891 return -EINVAL; 4892 4893 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4894 if (rc) 4895 rc = -EPERM; 4896 else 4897 rc = strlen(buf); 4898 return rc; 4899 } 4900 4901 static int lpfc_req_fw_upgrade; 4902 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4903 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4904 lpfc_param_show(request_firmware_upgrade) 4905 4906 /** 4907 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4908 * @phba: lpfc_hba pointer. 4909 * @val: 0 or 1. 4910 * 4911 * Description: 4912 * Set the initial Linux generic firmware upgrade enable or disable flag. 4913 * 4914 * Returns: 4915 * zero if val saved. 4916 * -EINVAL val out of range 4917 **/ 4918 static int 4919 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4920 { 4921 if (val >= 0 && val <= 1) { 4922 phba->cfg_request_firmware_upgrade = val; 4923 return 0; 4924 } 4925 return -EINVAL; 4926 } 4927 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4928 lpfc_request_firmware_upgrade_show, 4929 lpfc_request_firmware_upgrade_store); 4930 4931 /** 4932 * lpfc_force_rscn_store 4933 * 4934 * @dev: class device that is converted into a Scsi_host. 4935 * @attr: device attribute, not used. 4936 * @buf: unused string 4937 * @count: unused variable. 4938 * 4939 * Description: 4940 * Force the switch to send a RSCN to all other NPorts in our zone 4941 * If we are direct connect pt2pt, build the RSCN command ourself 4942 * and send to the other NPort. Not supported for private loop. 4943 * 4944 * Returns: 4945 * 0 - on success 4946 * -EIO - if command is not sent 4947 **/ 4948 static ssize_t 4949 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4950 const char *buf, size_t count) 4951 { 4952 struct Scsi_Host *shost = class_to_shost(dev); 4953 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4954 int i; 4955 4956 i = lpfc_issue_els_rscn(vport, 0); 4957 if (i) 4958 return -EIO; 4959 return strlen(buf); 4960 } 4961 4962 /* 4963 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4964 * connected to the HBA. 4965 * 4966 * Value range is any ascii value 4967 */ 4968 static int lpfc_force_rscn; 4969 module_param(lpfc_force_rscn, int, 0644); 4970 MODULE_PARM_DESC(lpfc_force_rscn, 4971 "Force an RSCN to be sent to all remote NPorts"); 4972 lpfc_param_show(force_rscn) 4973 4974 /** 4975 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4976 * @phba: lpfc_hba pointer. 4977 * @val: unused value. 4978 * 4979 * Returns: 4980 * zero if val saved. 4981 **/ 4982 static int 4983 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4984 { 4985 return 0; 4986 } 4987 static DEVICE_ATTR_RW(lpfc_force_rscn); 4988 4989 /** 4990 * lpfc_fcp_imax_store 4991 * 4992 * @dev: class device that is converted into a Scsi_host. 4993 * @attr: device attribute, not used. 4994 * @buf: string with the number of fast-path FCP interrupts per second. 4995 * @count: unused variable. 4996 * 4997 * Description: 4998 * If val is in a valid range [636,651042], then set the adapter's 4999 * maximum number of fast-path FCP interrupts per second. 5000 * 5001 * Returns: 5002 * length of the buf on success if val is in range the intended mode 5003 * is supported. 5004 * -EINVAL if val out of range or intended mode is not supported. 5005 **/ 5006 static ssize_t 5007 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5008 const char *buf, size_t count) 5009 { 5010 struct Scsi_Host *shost = class_to_shost(dev); 5011 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5012 struct lpfc_hba *phba = vport->phba; 5013 struct lpfc_eq_intr_info *eqi; 5014 uint32_t usdelay; 5015 int val = 0, i; 5016 5017 /* fcp_imax is only valid for SLI4 */ 5018 if (phba->sli_rev != LPFC_SLI_REV4) 5019 return -EINVAL; 5020 5021 /* Sanity check on user data */ 5022 if (!isdigit(buf[0])) 5023 return -EINVAL; 5024 if (sscanf(buf, "%i", &val) != 1) 5025 return -EINVAL; 5026 5027 /* 5028 * Value range for the HBA is [5000,5000000] 5029 * The value for each EQ depends on how many EQs are configured. 5030 * Allow value == 0 5031 */ 5032 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5033 return -EINVAL; 5034 5035 phba->cfg_auto_imax = (val) ? 0 : 1; 5036 if (phba->cfg_fcp_imax && !val) { 5037 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5038 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5039 5040 for_each_present_cpu(i) { 5041 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5042 eqi->icnt = 0; 5043 } 5044 } 5045 5046 phba->cfg_fcp_imax = (uint32_t)val; 5047 5048 if (phba->cfg_fcp_imax) 5049 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5050 else 5051 usdelay = 0; 5052 5053 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5054 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5055 usdelay); 5056 5057 return strlen(buf); 5058 } 5059 5060 /* 5061 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5062 # for the HBA. 5063 # 5064 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5065 */ 5066 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5067 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5068 MODULE_PARM_DESC(lpfc_fcp_imax, 5069 "Set the maximum number of FCP interrupts per second per HBA"); 5070 lpfc_param_show(fcp_imax) 5071 5072 /** 5073 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5074 * @phba: lpfc_hba pointer. 5075 * @val: link speed value. 5076 * 5077 * Description: 5078 * If val is in a valid range [636,651042], then initialize the adapter's 5079 * maximum number of fast-path FCP interrupts per second. 5080 * 5081 * Returns: 5082 * zero if val saved. 5083 * -EINVAL val out of range 5084 **/ 5085 static int 5086 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5087 { 5088 if (phba->sli_rev != LPFC_SLI_REV4) { 5089 phba->cfg_fcp_imax = 0; 5090 return 0; 5091 } 5092 5093 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5094 (val == 0)) { 5095 phba->cfg_fcp_imax = val; 5096 return 0; 5097 } 5098 5099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5100 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5101 val); 5102 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5103 5104 return 0; 5105 } 5106 5107 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5108 5109 /** 5110 * lpfc_cq_max_proc_limit_store 5111 * 5112 * @dev: class device that is converted into a Scsi_host. 5113 * @attr: device attribute, not used. 5114 * @buf: string with the cq max processing limit of cqes 5115 * @count: unused variable. 5116 * 5117 * Description: 5118 * If val is in a valid range, then set value on each cq 5119 * 5120 * Returns: 5121 * The length of the buf: if successful 5122 * -ERANGE: if val is not in the valid range 5123 * -EINVAL: if bad value format or intended mode is not supported. 5124 **/ 5125 static ssize_t 5126 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5127 const char *buf, size_t count) 5128 { 5129 struct Scsi_Host *shost = class_to_shost(dev); 5130 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5131 struct lpfc_hba *phba = vport->phba; 5132 struct lpfc_queue *eq, *cq; 5133 unsigned long val; 5134 int i; 5135 5136 /* cq_max_proc_limit is only valid for SLI4 */ 5137 if (phba->sli_rev != LPFC_SLI_REV4) 5138 return -EINVAL; 5139 5140 /* Sanity check on user data */ 5141 if (!isdigit(buf[0])) 5142 return -EINVAL; 5143 if (kstrtoul(buf, 0, &val)) 5144 return -EINVAL; 5145 5146 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5147 return -ERANGE; 5148 5149 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5150 5151 /* set the values on the cq's */ 5152 for (i = 0; i < phba->cfg_irq_chann; i++) { 5153 /* Get the EQ corresponding to the IRQ vector */ 5154 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5155 if (!eq) 5156 continue; 5157 5158 list_for_each_entry(cq, &eq->child_list, list) 5159 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5160 cq->entry_count); 5161 } 5162 5163 return strlen(buf); 5164 } 5165 5166 /* 5167 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5168 * itteration of CQ processing. 5169 */ 5170 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5171 module_param(lpfc_cq_max_proc_limit, int, 0644); 5172 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5173 "Set the maximum number CQEs processed in an iteration of " 5174 "CQ processing"); 5175 lpfc_param_show(cq_max_proc_limit) 5176 5177 /* 5178 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5179 * single handler call which should request a polled completion rather 5180 * than re-enabling interrupts. 5181 */ 5182 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5183 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5184 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5185 "CQE Processing Threshold to enable Polling"); 5186 5187 /** 5188 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5189 * @phba: lpfc_hba pointer. 5190 * @val: entry limit 5191 * 5192 * Description: 5193 * If val is in a valid range, then initialize the adapter's maximum 5194 * value. 5195 * 5196 * Returns: 5197 * Always returns 0 for success, even if value not always set to 5198 * requested value. If value out of range or not supported, will fall 5199 * back to default. 5200 **/ 5201 static int 5202 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5203 { 5204 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5205 5206 if (phba->sli_rev != LPFC_SLI_REV4) 5207 return 0; 5208 5209 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5210 phba->cfg_cq_max_proc_limit = val; 5211 return 0; 5212 } 5213 5214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5215 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: " 5216 "%d out of range, using default\n", 5217 phba->cfg_cq_max_proc_limit); 5218 5219 return 0; 5220 } 5221 5222 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5223 5224 /** 5225 * lpfc_state_show - Display current driver CPU affinity 5226 * @dev: class converted to a Scsi_host structure. 5227 * @attr: device attribute, not used. 5228 * @buf: on return contains text describing the state of the link. 5229 * 5230 * Returns: size of formatted string. 5231 **/ 5232 static ssize_t 5233 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5234 char *buf) 5235 { 5236 struct Scsi_Host *shost = class_to_shost(dev); 5237 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5238 struct lpfc_hba *phba = vport->phba; 5239 struct lpfc_vector_map_info *cpup; 5240 int len = 0; 5241 5242 if ((phba->sli_rev != LPFC_SLI_REV4) || 5243 (phba->intr_type != MSIX)) 5244 return len; 5245 5246 switch (phba->cfg_fcp_cpu_map) { 5247 case 0: 5248 len += scnprintf(buf + len, PAGE_SIZE-len, 5249 "fcp_cpu_map: No mapping (%d)\n", 5250 phba->cfg_fcp_cpu_map); 5251 return len; 5252 case 1: 5253 len += scnprintf(buf + len, PAGE_SIZE-len, 5254 "fcp_cpu_map: HBA centric mapping (%d): " 5255 "%d of %d CPUs online from %d possible CPUs\n", 5256 phba->cfg_fcp_cpu_map, num_online_cpus(), 5257 num_present_cpus(), 5258 phba->sli4_hba.num_possible_cpu); 5259 break; 5260 } 5261 5262 while (phba->sli4_hba.curr_disp_cpu < 5263 phba->sli4_hba.num_possible_cpu) { 5264 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5265 5266 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5267 len += scnprintf(buf + len, PAGE_SIZE - len, 5268 "CPU %02d not present\n", 5269 phba->sli4_hba.curr_disp_cpu); 5270 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5271 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5272 len += scnprintf( 5273 buf + len, PAGE_SIZE - len, 5274 "CPU %02d hdwq None " 5275 "physid %d coreid %d ht %d ua %d\n", 5276 phba->sli4_hba.curr_disp_cpu, 5277 cpup->phys_id, cpup->core_id, 5278 (cpup->flag & LPFC_CPU_MAP_HYPER), 5279 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5280 else 5281 len += scnprintf( 5282 buf + len, PAGE_SIZE - len, 5283 "CPU %02d EQ None hdwq %04d " 5284 "physid %d coreid %d ht %d ua %d\n", 5285 phba->sli4_hba.curr_disp_cpu, 5286 cpup->hdwq, cpup->phys_id, 5287 cpup->core_id, 5288 (cpup->flag & LPFC_CPU_MAP_HYPER), 5289 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5290 } else { 5291 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5292 len += scnprintf( 5293 buf + len, PAGE_SIZE - len, 5294 "CPU %02d hdwq None " 5295 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5296 phba->sli4_hba.curr_disp_cpu, 5297 cpup->phys_id, 5298 cpup->core_id, 5299 (cpup->flag & LPFC_CPU_MAP_HYPER), 5300 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5301 lpfc_get_irq(cpup->eq)); 5302 else 5303 len += scnprintf( 5304 buf + len, PAGE_SIZE - len, 5305 "CPU %02d EQ %04d hdwq %04d " 5306 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5307 phba->sli4_hba.curr_disp_cpu, 5308 cpup->eq, cpup->hdwq, cpup->phys_id, 5309 cpup->core_id, 5310 (cpup->flag & LPFC_CPU_MAP_HYPER), 5311 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5312 lpfc_get_irq(cpup->eq)); 5313 } 5314 5315 phba->sli4_hba.curr_disp_cpu++; 5316 5317 /* display max number of CPUs keeping some margin */ 5318 if (phba->sli4_hba.curr_disp_cpu < 5319 phba->sli4_hba.num_possible_cpu && 5320 (len >= (PAGE_SIZE - 64))) { 5321 len += scnprintf(buf + len, 5322 PAGE_SIZE - len, "more...\n"); 5323 break; 5324 } 5325 } 5326 5327 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5328 phba->sli4_hba.curr_disp_cpu = 0; 5329 5330 return len; 5331 } 5332 5333 /** 5334 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5335 * @dev: class device that is converted into a Scsi_host. 5336 * @attr: device attribute, not used. 5337 * @buf: one or more lpfc_polling_flags values. 5338 * @count: not used. 5339 * 5340 * Returns: 5341 * -EINVAL - Not implemented yet. 5342 **/ 5343 static ssize_t 5344 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5345 const char *buf, size_t count) 5346 { 5347 return -EINVAL; 5348 } 5349 5350 /* 5351 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5352 # for the HBA. 5353 # 5354 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5355 # 0 - Do not affinitze IRQ vectors 5356 # 1 - Affintize HBA vectors with respect to each HBA 5357 # (start with CPU0 for each HBA) 5358 # This also defines how Hardware Queues are mapped to specific CPUs. 5359 */ 5360 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5361 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5362 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5363 "Defines how to map CPUs to IRQ vectors per HBA"); 5364 5365 /** 5366 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5367 * @phba: lpfc_hba pointer. 5368 * @val: link speed value. 5369 * 5370 * Description: 5371 * If val is in a valid range [0-2], then affinitze the adapter's 5372 * MSIX vectors. 5373 * 5374 * Returns: 5375 * zero if val saved. 5376 * -EINVAL val out of range 5377 **/ 5378 static int 5379 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5380 { 5381 if (phba->sli_rev != LPFC_SLI_REV4) { 5382 phba->cfg_fcp_cpu_map = 0; 5383 return 0; 5384 } 5385 5386 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5387 phba->cfg_fcp_cpu_map = val; 5388 return 0; 5389 } 5390 5391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5392 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5393 "default\n", val); 5394 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5395 5396 return 0; 5397 } 5398 5399 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5400 5401 /* 5402 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5403 # Value range is [2,3]. Default value is 3. 5404 */ 5405 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5406 "Select Fibre Channel class of service for FCP sequences"); 5407 5408 /* 5409 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5410 # is [0,1]. Default value is 0. 5411 */ 5412 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5413 "Use ADISC on rediscovery to authenticate FCP devices"); 5414 5415 /* 5416 # lpfc_first_burst_size: First burst size to use on the NPorts 5417 # that support first burst. 5418 # Value range is [0,65536]. Default value is 0. 5419 */ 5420 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5421 "First burst size for Targets that support first burst"); 5422 5423 /* 5424 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5425 * When the driver is configured as an NVME target, this value is 5426 * communicated to the NVME initiator in the PRLI response. It is 5427 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5428 * parameters are set and the target is sending the PRLI RSP. 5429 * Parameter supported on physical port only - no NPIV support. 5430 * Value range is [0,65536]. Default value is 0. 5431 */ 5432 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5433 "NVME Target mode first burst size in 512B increments."); 5434 5435 /* 5436 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5437 * For the Initiator (I), enabling this parameter means that an NVMET 5438 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5439 * processed by the initiator for subsequent NVME FCP IO. 5440 * Currently, this feature is not supported on the NVME target 5441 * Value range is [0,1]. Default value is 0 (disabled). 5442 */ 5443 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5444 "Enable First Burst feature for NVME Initiator."); 5445 5446 /* 5447 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5448 # depth. Default value is 0. When the value of this parameter is zero the 5449 # SCSI command completion time is not used for controlling I/O queue depth. When 5450 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5451 # to limit the I/O completion time to the parameter value. 5452 # The value is set in milliseconds. 5453 */ 5454 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5455 "Use command completion time to control queue depth"); 5456 5457 lpfc_vport_param_show(max_scsicmpl_time); 5458 static int 5459 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5460 { 5461 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5462 struct lpfc_nodelist *ndlp, *next_ndlp; 5463 5464 if (val == vport->cfg_max_scsicmpl_time) 5465 return 0; 5466 if ((val < 0) || (val > 60000)) 5467 return -EINVAL; 5468 vport->cfg_max_scsicmpl_time = val; 5469 5470 spin_lock_irq(shost->host_lock); 5471 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5472 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5473 continue; 5474 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5475 } 5476 spin_unlock_irq(shost->host_lock); 5477 return 0; 5478 } 5479 lpfc_vport_param_store(max_scsicmpl_time); 5480 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5481 5482 /* 5483 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5484 # range is [0,1]. Default value is 0. 5485 */ 5486 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5487 5488 /* 5489 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5490 # range is [0,1]. Default value is 1. 5491 */ 5492 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5493 5494 /* 5495 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5496 * range is [0,1]. Default value is 0. 5497 * For [0], FCP commands are issued to Work Queues based on upper layer 5498 * hardware queue index. 5499 * For [1], FCP commands are issued to a Work Queue associated with the 5500 * current CPU. 5501 * 5502 * LPFC_FCP_SCHED_BY_HDWQ == 0 5503 * LPFC_FCP_SCHED_BY_CPU == 1 5504 * 5505 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5506 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5507 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5508 * through WQs will be used. 5509 */ 5510 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5511 LPFC_FCP_SCHED_BY_HDWQ, 5512 LPFC_FCP_SCHED_BY_CPU, 5513 "Determine scheduling algorithm for " 5514 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5515 5516 /* 5517 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5518 * range is [0,1]. Default value is 0. 5519 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5520 * For [1], GID_PT is used for NameServer queries after RSCN 5521 * 5522 */ 5523 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5524 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5525 "Determine algorithm NameServer queries after RSCN " 5526 "[0] - GID_FT, [1] - GID_PT"); 5527 5528 /* 5529 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5530 # range is [0,1]. Default value is 0. 5531 # For [0], bus reset issues target reset to ALL devices 5532 # For [1], bus reset issues target reset to non-FCP2 devices 5533 */ 5534 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5535 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5536 5537 5538 /* 5539 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5540 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5541 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5542 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5543 # cr_delay is set to 0. 5544 */ 5545 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5546 "interrupt response is generated"); 5547 5548 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5549 "interrupt response is generated"); 5550 5551 /* 5552 # lpfc_multi_ring_support: Determines how many rings to spread available 5553 # cmd/rsp IOCB entries across. 5554 # Value range is [1,2]. Default value is 1. 5555 */ 5556 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5557 "SLI rings to spread IOCB entries across"); 5558 5559 /* 5560 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5561 # identifies what rctl value to configure the additional ring for. 5562 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5563 */ 5564 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5565 255, "Identifies RCTL for additional ring configuration"); 5566 5567 /* 5568 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5569 # identifies what type value to configure the additional ring for. 5570 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5571 */ 5572 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5573 255, "Identifies TYPE for additional ring configuration"); 5574 5575 /* 5576 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5577 # 0 = SmartSAN functionality disabled (default) 5578 # 1 = SmartSAN functionality enabled 5579 # This parameter will override the value of lpfc_fdmi_on module parameter. 5580 # Value range is [0,1]. Default value is 0. 5581 */ 5582 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5583 5584 /* 5585 # lpfc_fdmi_on: Controls FDMI support. 5586 # 0 No FDMI support 5587 # 1 Traditional FDMI support (default) 5588 # Traditional FDMI support means the driver will assume FDMI-2 support; 5589 # however, if that fails, it will fallback to FDMI-1. 5590 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5591 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5592 # lpfc_fdmi_on. 5593 # Value range [0,1]. Default value is 1. 5594 */ 5595 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5596 5597 /* 5598 # Specifies the maximum number of ELS cmds we can have outstanding (for 5599 # discovery). Value range is [1,64]. Default value = 32. 5600 */ 5601 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5602 "during discovery"); 5603 5604 /* 5605 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5606 # will be scanned by the SCSI midlayer when sequential scanning is 5607 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5608 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5609 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5610 # above. The lpfc driver limits the default value to 255 for two reasons. 5611 # As it bounds the sequential scan loop, scanning for thousands of luns 5612 # on a target can take minutes of wall clock time. Additionally, 5613 # there are FC targets, such as JBODs, that only recognize 8-bits of 5614 # LUN ID. When they receive a value greater than 8 bits, they chop off 5615 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5616 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5617 # valid responses at each of the LUN IDs, to believe there are multiple 5618 # devices present, when in fact, there is only 1. 5619 # A customer that is aware of their target behaviors, and the results as 5620 # indicated above, is welcome to increase the lpfc_max_luns value. 5621 # As mentioned, this value is not used by the lpfc driver, only the 5622 # SCSI midlayer. 5623 # Value range is [0,65535]. Default value is 255. 5624 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5625 */ 5626 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5627 5628 /* 5629 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5630 # Value range is [1,255], default value is 10. 5631 */ 5632 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5633 "Milliseconds driver will wait between polling FCP ring"); 5634 5635 /* 5636 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5637 # to complete in seconds. Value range is [5,180], default value is 60. 5638 */ 5639 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5640 "Maximum time to wait for task management commands to complete"); 5641 /* 5642 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5643 # support this feature 5644 # 0 = MSI disabled 5645 # 1 = MSI enabled 5646 # 2 = MSI-X enabled (default) 5647 # Value range is [0,2]. Default value is 2. 5648 */ 5649 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5650 "MSI-X (2), if possible"); 5651 5652 /* 5653 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5654 * 5655 * 0 = NVME OAS disabled 5656 * 1 = NVME OAS enabled 5657 * 5658 * Value range is [0,1]. Default value is 0. 5659 */ 5660 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5661 "Use OAS bit on NVME IOs"); 5662 5663 /* 5664 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5665 * 5666 * 0 = Put NVME Command in SGL 5667 * 1 = Embed NVME Command in WQE (unless G7) 5668 * 2 = Embed NVME Command in WQE (force) 5669 * 5670 * Value range is [0,2]. Default value is 1. 5671 */ 5672 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5673 "Embed NVME Command in WQE"); 5674 5675 /* 5676 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5677 * the driver will advertise it supports to the SCSI layer. 5678 * 5679 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5680 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5681 * 5682 * Value range is [0,256]. Default value is 8. 5683 */ 5684 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5685 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5686 "Set the number of SCSI Queues advertised"); 5687 5688 /* 5689 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5690 * will advertise it supports to the NVME and SCSI layers. This also 5691 * will map to the number of CQ/WQ pairs the driver will create. 5692 * 5693 * The NVME Layer will try to create this many, plus 1 administrative 5694 * hardware queue. The administrative queue will always map to WQ 0 5695 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5696 * 5697 * 0 = Configure the number of hdw queues to the number of active CPUs. 5698 * 1,256 = Manually specify how many hdw queues to use. 5699 * 5700 * Value range is [0,256]. Default value is 0. 5701 */ 5702 LPFC_ATTR_R(hdw_queue, 5703 LPFC_HBA_HDWQ_DEF, 5704 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5705 "Set the number of I/O Hardware Queues"); 5706 5707 #if IS_ENABLED(CONFIG_X86) 5708 /** 5709 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5710 * irq_chann_mode 5711 * @phba: Pointer to HBA context object. 5712 **/ 5713 static void 5714 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5715 { 5716 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5717 const struct cpumask *sibling_mask; 5718 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5719 5720 cpumask_clear(aff_mask); 5721 5722 if (phba->irq_chann_mode == NUMA_MODE) { 5723 /* Check if we're a NUMA architecture */ 5724 numa_node = dev_to_node(&phba->pcidev->dev); 5725 if (numa_node == NUMA_NO_NODE) { 5726 phba->irq_chann_mode = NORMAL_MODE; 5727 return; 5728 } 5729 } 5730 5731 for_each_possible_cpu(cpu) { 5732 switch (phba->irq_chann_mode) { 5733 case NUMA_MODE: 5734 if (cpu_to_node(cpu) == numa_node) 5735 cpumask_set_cpu(cpu, aff_mask); 5736 break; 5737 case NHT_MODE: 5738 sibling_mask = topology_sibling_cpumask(cpu); 5739 first_cpu = cpumask_first(sibling_mask); 5740 if (first_cpu < nr_cpu_ids) 5741 cpumask_set_cpu(first_cpu, aff_mask); 5742 break; 5743 default: 5744 break; 5745 } 5746 } 5747 } 5748 #endif 5749 5750 static void 5751 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5752 { 5753 #if IS_ENABLED(CONFIG_X86) 5754 switch (boot_cpu_data.x86_vendor) { 5755 case X86_VENDOR_AMD: 5756 /* If AMD architecture, then default is NUMA_MODE */ 5757 phba->irq_chann_mode = NUMA_MODE; 5758 break; 5759 case X86_VENDOR_INTEL: 5760 /* If Intel architecture, then default is no hyperthread mode */ 5761 phba->irq_chann_mode = NHT_MODE; 5762 break; 5763 default: 5764 phba->irq_chann_mode = NORMAL_MODE; 5765 break; 5766 } 5767 lpfc_cpumask_irq_mode_init(phba); 5768 #else 5769 phba->irq_chann_mode = NORMAL_MODE; 5770 #endif 5771 } 5772 5773 /* 5774 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5775 * for Hardware Queues to utilize. This also will map to the number 5776 * of EQ / MSI-X vectors the driver will create. This should never be 5777 * more than the number of Hardware Queues 5778 * 5779 * 0 = Configure number of IRQ Channels to: 5780 * if AMD architecture, number of CPUs on HBA's NUMA node 5781 * if Intel architecture, number of physical CPUs. 5782 * otherwise, number of active CPUs. 5783 * [1,256] = Manually specify how many IRQ Channels to use. 5784 * 5785 * Value range is [0,256]. Default value is [0]. 5786 */ 5787 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5788 module_param(lpfc_irq_chann, uint, 0444); 5789 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5790 5791 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5792 * @phba: lpfc_hba pointer. 5793 * @val: contains the initial value 5794 * 5795 * Description: 5796 * Validates the initial value is within range and assigns it to the 5797 * adapter. If not in range, an error message is posted and the 5798 * default value is assigned. 5799 * 5800 * Returns: 5801 * zero if value is in range and is set 5802 * -EINVAL if value was out of range 5803 **/ 5804 static int 5805 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5806 { 5807 const struct cpumask *aff_mask; 5808 5809 if (phba->cfg_use_msi != 2) { 5810 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5811 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5812 phba->cfg_use_msi); 5813 phba->irq_chann_mode = NORMAL_MODE; 5814 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5815 return 0; 5816 } 5817 5818 /* Check if default setting was passed */ 5819 if (val == LPFC_IRQ_CHANN_DEF) 5820 lpfc_assign_default_irq_chann(phba); 5821 5822 if (phba->irq_chann_mode != NORMAL_MODE) { 5823 aff_mask = &phba->sli4_hba.irq_aff_mask; 5824 5825 if (cpumask_empty(aff_mask)) { 5826 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5827 "8533 Could not identify CPUS for " 5828 "mode %d, ignoring\n", 5829 phba->irq_chann_mode); 5830 phba->irq_chann_mode = NORMAL_MODE; 5831 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5832 } else { 5833 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5834 5835 /* If no hyperthread mode, then set hdwq count to 5836 * aff_mask weight as well 5837 */ 5838 if (phba->irq_chann_mode == NHT_MODE) 5839 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5840 5841 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5842 "8543 lpfc_irq_chann set to %u " 5843 "(mode: %d)\n", phba->cfg_irq_chann, 5844 phba->irq_chann_mode); 5845 } 5846 } else { 5847 if (val > LPFC_IRQ_CHANN_MAX) { 5848 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5849 "8545 lpfc_irq_chann attribute cannot " 5850 "be set to %u, allowed range is " 5851 "[%u,%u]\n", 5852 val, 5853 LPFC_IRQ_CHANN_MIN, 5854 LPFC_IRQ_CHANN_MAX); 5855 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5856 return -EINVAL; 5857 } 5858 phba->cfg_irq_chann = val; 5859 } 5860 5861 return 0; 5862 } 5863 5864 /** 5865 * lpfc_irq_chann_show - Display value of irq_chann 5866 * @dev: class converted to a Scsi_host structure. 5867 * @attr: device attribute, not used. 5868 * @buf: on return contains a string with the list sizes 5869 * 5870 * Returns: size of formatted string. 5871 **/ 5872 static ssize_t 5873 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5874 char *buf) 5875 { 5876 struct Scsi_Host *shost = class_to_shost(dev); 5877 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5878 struct lpfc_hba *phba = vport->phba; 5879 5880 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5881 } 5882 5883 static DEVICE_ATTR_RO(lpfc_irq_chann); 5884 5885 /* 5886 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5887 # 0 = HBA resets disabled 5888 # 1 = HBA resets enabled (default) 5889 # 2 = HBA reset via PCI bus reset enabled 5890 # Value range is [0,2]. Default value is 1. 5891 */ 5892 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5893 5894 /* 5895 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5896 # 0 = HBA Heartbeat disabled 5897 # 1 = HBA Heartbeat enabled (default) 5898 # Value range is [0,1]. Default value is 1. 5899 */ 5900 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5901 5902 /* 5903 # lpfc_EnableXLane: Enable Express Lane Feature 5904 # 0x0 Express Lane Feature disabled 5905 # 0x1 Express Lane Feature enabled 5906 # Value range is [0,1]. Default value is 0. 5907 */ 5908 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5909 5910 /* 5911 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5912 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5913 # Value range is [0x0,0x7f]. Default value is 0 5914 */ 5915 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5916 5917 /* 5918 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5919 # 0 = BlockGuard disabled (default) 5920 # 1 = BlockGuard enabled 5921 # Value range is [0,1]. Default value is 0. 5922 */ 5923 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5924 5925 /* 5926 # lpfc_prot_mask: i 5927 # - Bit mask of host protection capabilities used to register with the 5928 # SCSI mid-layer 5929 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5930 # - Allows you to ultimately specify which profiles to use 5931 # - Default will result in registering capabilities for all profiles. 5932 # - SHOST_DIF_TYPE1_PROTECTION 1 5933 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5934 # - SHOST_DIX_TYPE0_PROTECTION 8 5935 # HBA supports DIX Type 0: Host to HBA protection only 5936 # - SHOST_DIX_TYPE1_PROTECTION 16 5937 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5938 # 5939 */ 5940 LPFC_ATTR(prot_mask, 5941 (SHOST_DIF_TYPE1_PROTECTION | 5942 SHOST_DIX_TYPE0_PROTECTION | 5943 SHOST_DIX_TYPE1_PROTECTION), 5944 0, 5945 (SHOST_DIF_TYPE1_PROTECTION | 5946 SHOST_DIX_TYPE0_PROTECTION | 5947 SHOST_DIX_TYPE1_PROTECTION), 5948 "T10-DIF host protection capabilities mask"); 5949 5950 /* 5951 # lpfc_prot_guard: i 5952 # - Bit mask of protection guard types to register with the SCSI mid-layer 5953 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5954 # - Allows you to ultimately specify which profiles to use 5955 # - Default will result in registering capabilities for all guard types 5956 # 5957 */ 5958 LPFC_ATTR(prot_guard, 5959 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5960 "T10-DIF host protection guard type"); 5961 5962 /* 5963 * Delay initial NPort discovery when Clean Address bit is cleared in 5964 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5965 * This parameter can have value 0 or 1. 5966 * When this parameter is set to 0, no delay is added to the initial 5967 * discovery. 5968 * When this parameter is set to non-zero value, initial Nport discovery is 5969 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5970 * accept and FCID/Fabric name/Fabric portname is changed. 5971 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5972 * when Clean Address bit is cleared in FLOGI/FDISC 5973 * accept and FCID/Fabric name/Fabric portname is changed. 5974 * Default value is 0. 5975 */ 5976 LPFC_ATTR(delay_discovery, 0, 0, 1, 5977 "Delay NPort discovery when Clean Address bit is cleared."); 5978 5979 /* 5980 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5981 * This value can be set to values between 64 and 4096. The default value 5982 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5983 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5984 * Because of the additional overhead involved in setting up T10-DIF, 5985 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5986 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5987 */ 5988 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5989 module_param(lpfc_sg_seg_cnt, uint, 0444); 5990 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5991 5992 /** 5993 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5994 * configured for the adapter 5995 * @dev: class converted to a Scsi_host structure. 5996 * @attr: device attribute, not used. 5997 * @buf: on return contains a string with the list sizes 5998 * 5999 * Returns: size of formatted string. 6000 **/ 6001 static ssize_t 6002 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6003 char *buf) 6004 { 6005 struct Scsi_Host *shost = class_to_shost(dev); 6006 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6007 struct lpfc_hba *phba = vport->phba; 6008 int len; 6009 6010 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6011 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6012 6013 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6014 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6015 phba->cfg_nvme_seg_cnt); 6016 return len; 6017 } 6018 6019 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6020 6021 /** 6022 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6023 * @phba: lpfc_hba pointer. 6024 * @val: contains the initial value 6025 * 6026 * Description: 6027 * Validates the initial value is within range and assigns it to the 6028 * adapter. If not in range, an error message is posted and the 6029 * default value is assigned. 6030 * 6031 * Returns: 6032 * zero if value is in range and is set 6033 * -EINVAL if value was out of range 6034 **/ 6035 static int 6036 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6037 { 6038 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6039 phba->cfg_sg_seg_cnt = val; 6040 return 0; 6041 } 6042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6043 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 6044 "be set to %d, allowed range is [%d, %d]\n", 6045 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6046 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6047 return -EINVAL; 6048 } 6049 6050 /* 6051 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6052 * 0 = MDS Diagnostics disabled (default) 6053 * 1 = MDS Diagnostics enabled 6054 * Value range is [0,1]. Default value is 0. 6055 */ 6056 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6057 6058 /* 6059 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6060 * 0 = Disable firmware logging (default) 6061 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6062 * Value range [0..4]. Default value is 0 6063 */ 6064 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6065 lpfc_param_show(ras_fwlog_buffsize); 6066 6067 static ssize_t 6068 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6069 { 6070 int ret = 0; 6071 enum ras_state state; 6072 6073 if (!lpfc_rangecheck(val, 0, 4)) 6074 return -EINVAL; 6075 6076 if (phba->cfg_ras_fwlog_buffsize == val) 6077 return 0; 6078 6079 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6080 return -EINVAL; 6081 6082 spin_lock_irq(&phba->hbalock); 6083 state = phba->ras_fwlog.state; 6084 spin_unlock_irq(&phba->hbalock); 6085 6086 if (state == REG_INPROGRESS) { 6087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6088 "registration is in progress\n"); 6089 return -EBUSY; 6090 } 6091 6092 /* For disable logging: stop the logs and free the DMA. 6093 * For ras_fwlog_buffsize size change we still need to free and 6094 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6095 */ 6096 phba->cfg_ras_fwlog_buffsize = val; 6097 if (state == ACTIVE) { 6098 lpfc_ras_stop_fwlog(phba); 6099 lpfc_sli4_ras_dma_free(phba); 6100 } 6101 6102 lpfc_sli4_ras_init(phba); 6103 if (phba->ras_fwlog.ras_enabled) 6104 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6105 LPFC_RAS_ENABLE_LOGGING); 6106 return ret; 6107 } 6108 6109 lpfc_param_store(ras_fwlog_buffsize); 6110 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6111 6112 /* 6113 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6114 * Valid only if firmware logging is enabled 6115 * 0(Least Verbosity) 4 (most verbosity) 6116 * Value range is [0..4]. Default value is 0 6117 */ 6118 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6119 6120 /* 6121 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6122 * Default function which has RAS support : 0 6123 * Value Range is [0..7]. 6124 * FW logging is a global action and enablement is via a specific 6125 * port. 6126 */ 6127 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6128 6129 /* 6130 * lpfc_enable_bbcr: Enable BB Credit Recovery 6131 * 0 = BB Credit Recovery disabled 6132 * 1 = BB Credit Recovery enabled (default) 6133 * Value range is [0,1]. Default value is 1. 6134 */ 6135 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6136 6137 /* 6138 * lpfc_enable_dpp: Enable DPP on G7 6139 * 0 = DPP on G7 disabled 6140 * 1 = DPP on G7 enabled (default) 6141 * Value range is [0,1]. Default value is 1. 6142 */ 6143 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6144 6145 /* 6146 * lpfc_enable_mi: Enable FDMI MIB 6147 * 0 = disabled 6148 * 1 = enabled (default) 6149 * Value range is [0,1]. 6150 */ 6151 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6152 6153 struct device_attribute *lpfc_hba_attrs[] = { 6154 &dev_attr_nvme_info, 6155 &dev_attr_scsi_stat, 6156 &dev_attr_bg_info, 6157 &dev_attr_bg_guard_err, 6158 &dev_attr_bg_apptag_err, 6159 &dev_attr_bg_reftag_err, 6160 &dev_attr_info, 6161 &dev_attr_serialnum, 6162 &dev_attr_modeldesc, 6163 &dev_attr_modelname, 6164 &dev_attr_programtype, 6165 &dev_attr_portnum, 6166 &dev_attr_fwrev, 6167 &dev_attr_hdw, 6168 &dev_attr_option_rom_version, 6169 &dev_attr_link_state, 6170 &dev_attr_num_discovered_ports, 6171 &dev_attr_menlo_mgmt_mode, 6172 &dev_attr_lpfc_drvr_version, 6173 &dev_attr_lpfc_enable_fip, 6174 &dev_attr_lpfc_temp_sensor, 6175 &dev_attr_lpfc_log_verbose, 6176 &dev_attr_lpfc_lun_queue_depth, 6177 &dev_attr_lpfc_tgt_queue_depth, 6178 &dev_attr_lpfc_hba_queue_depth, 6179 &dev_attr_lpfc_peer_port_login, 6180 &dev_attr_lpfc_nodev_tmo, 6181 &dev_attr_lpfc_devloss_tmo, 6182 &dev_attr_lpfc_enable_fc4_type, 6183 &dev_attr_lpfc_fcp_class, 6184 &dev_attr_lpfc_use_adisc, 6185 &dev_attr_lpfc_first_burst_size, 6186 &dev_attr_lpfc_ack0, 6187 &dev_attr_lpfc_xri_rebalancing, 6188 &dev_attr_lpfc_topology, 6189 &dev_attr_lpfc_scan_down, 6190 &dev_attr_lpfc_link_speed, 6191 &dev_attr_lpfc_fcp_io_sched, 6192 &dev_attr_lpfc_ns_query, 6193 &dev_attr_lpfc_fcp2_no_tgt_reset, 6194 &dev_attr_lpfc_cr_delay, 6195 &dev_attr_lpfc_cr_count, 6196 &dev_attr_lpfc_multi_ring_support, 6197 &dev_attr_lpfc_multi_ring_rctl, 6198 &dev_attr_lpfc_multi_ring_type, 6199 &dev_attr_lpfc_fdmi_on, 6200 &dev_attr_lpfc_enable_SmartSAN, 6201 &dev_attr_lpfc_max_luns, 6202 &dev_attr_lpfc_enable_npiv, 6203 &dev_attr_lpfc_fcf_failover_policy, 6204 &dev_attr_lpfc_enable_rrq, 6205 &dev_attr_nport_evt_cnt, 6206 &dev_attr_board_mode, 6207 &dev_attr_max_vpi, 6208 &dev_attr_used_vpi, 6209 &dev_attr_max_rpi, 6210 &dev_attr_used_rpi, 6211 &dev_attr_max_xri, 6212 &dev_attr_used_xri, 6213 &dev_attr_npiv_info, 6214 &dev_attr_issue_reset, 6215 &dev_attr_lpfc_poll, 6216 &dev_attr_lpfc_poll_tmo, 6217 &dev_attr_lpfc_task_mgmt_tmo, 6218 &dev_attr_lpfc_use_msi, 6219 &dev_attr_lpfc_nvme_oas, 6220 &dev_attr_lpfc_nvme_embed_cmd, 6221 &dev_attr_lpfc_fcp_imax, 6222 &dev_attr_lpfc_force_rscn, 6223 &dev_attr_lpfc_cq_poll_threshold, 6224 &dev_attr_lpfc_cq_max_proc_limit, 6225 &dev_attr_lpfc_fcp_cpu_map, 6226 &dev_attr_lpfc_fcp_mq_threshold, 6227 &dev_attr_lpfc_hdw_queue, 6228 &dev_attr_lpfc_irq_chann, 6229 &dev_attr_lpfc_suppress_rsp, 6230 &dev_attr_lpfc_nvmet_mrq, 6231 &dev_attr_lpfc_nvmet_mrq_post, 6232 &dev_attr_lpfc_nvme_enable_fb, 6233 &dev_attr_lpfc_nvmet_fb_size, 6234 &dev_attr_lpfc_enable_bg, 6235 &dev_attr_lpfc_soft_wwnn, 6236 &dev_attr_lpfc_soft_wwpn, 6237 &dev_attr_lpfc_soft_wwn_enable, 6238 &dev_attr_lpfc_enable_hba_reset, 6239 &dev_attr_lpfc_enable_hba_heartbeat, 6240 &dev_attr_lpfc_EnableXLane, 6241 &dev_attr_lpfc_XLanePriority, 6242 &dev_attr_lpfc_xlane_lun, 6243 &dev_attr_lpfc_xlane_tgt, 6244 &dev_attr_lpfc_xlane_vpt, 6245 &dev_attr_lpfc_xlane_lun_state, 6246 &dev_attr_lpfc_xlane_lun_status, 6247 &dev_attr_lpfc_xlane_priority, 6248 &dev_attr_lpfc_sg_seg_cnt, 6249 &dev_attr_lpfc_max_scsicmpl_time, 6250 &dev_attr_lpfc_stat_data_ctrl, 6251 &dev_attr_lpfc_aer_support, 6252 &dev_attr_lpfc_aer_state_cleanup, 6253 &dev_attr_lpfc_sriov_nr_virtfn, 6254 &dev_attr_lpfc_req_fw_upgrade, 6255 &dev_attr_lpfc_suppress_link_up, 6256 &dev_attr_iocb_hw, 6257 &dev_attr_pls, 6258 &dev_attr_pt, 6259 &dev_attr_txq_hw, 6260 &dev_attr_txcmplq_hw, 6261 &dev_attr_lpfc_sriov_hw_max_virtfn, 6262 &dev_attr_protocol, 6263 &dev_attr_lpfc_xlane_supported, 6264 &dev_attr_lpfc_enable_mds_diags, 6265 &dev_attr_lpfc_ras_fwlog_buffsize, 6266 &dev_attr_lpfc_ras_fwlog_level, 6267 &dev_attr_lpfc_ras_fwlog_func, 6268 &dev_attr_lpfc_enable_bbcr, 6269 &dev_attr_lpfc_enable_dpp, 6270 &dev_attr_lpfc_enable_mi, 6271 NULL, 6272 }; 6273 6274 struct device_attribute *lpfc_vport_attrs[] = { 6275 &dev_attr_info, 6276 &dev_attr_link_state, 6277 &dev_attr_num_discovered_ports, 6278 &dev_attr_lpfc_drvr_version, 6279 &dev_attr_lpfc_log_verbose, 6280 &dev_attr_lpfc_lun_queue_depth, 6281 &dev_attr_lpfc_tgt_queue_depth, 6282 &dev_attr_lpfc_nodev_tmo, 6283 &dev_attr_lpfc_devloss_tmo, 6284 &dev_attr_lpfc_hba_queue_depth, 6285 &dev_attr_lpfc_peer_port_login, 6286 &dev_attr_lpfc_restrict_login, 6287 &dev_attr_lpfc_fcp_class, 6288 &dev_attr_lpfc_use_adisc, 6289 &dev_attr_lpfc_first_burst_size, 6290 &dev_attr_lpfc_max_luns, 6291 &dev_attr_nport_evt_cnt, 6292 &dev_attr_npiv_info, 6293 &dev_attr_lpfc_enable_da_id, 6294 &dev_attr_lpfc_max_scsicmpl_time, 6295 &dev_attr_lpfc_stat_data_ctrl, 6296 &dev_attr_lpfc_static_vport, 6297 NULL, 6298 }; 6299 6300 /** 6301 * sysfs_ctlreg_write - Write method for writing to ctlreg 6302 * @filp: open sysfs file 6303 * @kobj: kernel kobject that contains the kernel class device. 6304 * @bin_attr: kernel attributes passed to us. 6305 * @buf: contains the data to be written to the adapter IOREG space. 6306 * @off: offset into buffer to beginning of data. 6307 * @count: bytes to transfer. 6308 * 6309 * Description: 6310 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6311 * Uses the adapter io control registers to send buf contents to the adapter. 6312 * 6313 * Returns: 6314 * -ERANGE off and count combo out of range 6315 * -EINVAL off, count or buff address invalid 6316 * -EPERM adapter is offline 6317 * value of count, buf contents written 6318 **/ 6319 static ssize_t 6320 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6321 struct bin_attribute *bin_attr, 6322 char *buf, loff_t off, size_t count) 6323 { 6324 size_t buf_off; 6325 struct device *dev = container_of(kobj, struct device, kobj); 6326 struct Scsi_Host *shost = class_to_shost(dev); 6327 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6328 struct lpfc_hba *phba = vport->phba; 6329 6330 if (phba->sli_rev >= LPFC_SLI_REV4) 6331 return -EPERM; 6332 6333 if ((off + count) > FF_REG_AREA_SIZE) 6334 return -ERANGE; 6335 6336 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6337 return 0; 6338 6339 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6340 return -EINVAL; 6341 6342 /* This is to protect HBA registers from accidental writes. */ 6343 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6344 return -EINVAL; 6345 6346 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6347 return -EPERM; 6348 6349 spin_lock_irq(&phba->hbalock); 6350 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6351 buf_off += sizeof(uint32_t)) 6352 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6353 phba->ctrl_regs_memmap_p + off + buf_off); 6354 6355 spin_unlock_irq(&phba->hbalock); 6356 6357 return count; 6358 } 6359 6360 /** 6361 * sysfs_ctlreg_read - Read method for reading from 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: if successful contains the data from 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 read data into buf. 6372 * 6373 * Returns: 6374 * -ERANGE off and count combo out of range 6375 * -EINVAL off, count or buff address invalid 6376 * value of count, buf contents read 6377 **/ 6378 static ssize_t 6379 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6380 struct bin_attribute *bin_attr, 6381 char *buf, loff_t off, size_t count) 6382 { 6383 size_t buf_off; 6384 uint32_t * tmp_ptr; 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 > FF_REG_AREA_SIZE) 6394 return -ERANGE; 6395 6396 if ((off + count) > FF_REG_AREA_SIZE) 6397 count = FF_REG_AREA_SIZE - off; 6398 6399 if (count == 0) return 0; 6400 6401 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6402 return -EINVAL; 6403 6404 spin_lock_irq(&phba->hbalock); 6405 6406 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6407 tmp_ptr = (uint32_t *)(buf + buf_off); 6408 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6409 } 6410 6411 spin_unlock_irq(&phba->hbalock); 6412 6413 return count; 6414 } 6415 6416 static struct bin_attribute sysfs_ctlreg_attr = { 6417 .attr = { 6418 .name = "ctlreg", 6419 .mode = S_IRUSR | S_IWUSR, 6420 }, 6421 .size = 256, 6422 .read = sysfs_ctlreg_read, 6423 .write = sysfs_ctlreg_write, 6424 }; 6425 6426 /** 6427 * sysfs_mbox_write - Write method for writing information via mbox 6428 * @filp: open sysfs file 6429 * @kobj: kernel kobject that contains the kernel class device. 6430 * @bin_attr: kernel attributes passed to us. 6431 * @buf: contains the data to be written to sysfs mbox. 6432 * @off: offset into buffer to beginning of data. 6433 * @count: bytes to transfer. 6434 * 6435 * Description: 6436 * Deprecated function. All mailbox access from user space is performed via the 6437 * bsg interface. 6438 * 6439 * Returns: 6440 * -EPERM operation not permitted 6441 **/ 6442 static ssize_t 6443 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6444 struct bin_attribute *bin_attr, 6445 char *buf, loff_t off, size_t count) 6446 { 6447 return -EPERM; 6448 } 6449 6450 /** 6451 * sysfs_mbox_read - Read method for reading information via mbox 6452 * @filp: open sysfs file 6453 * @kobj: kernel kobject that contains the kernel class device. 6454 * @bin_attr: kernel attributes passed to us. 6455 * @buf: contains the data to be read from sysfs mbox. 6456 * @off: offset into buffer to beginning of data. 6457 * @count: bytes to transfer. 6458 * 6459 * Description: 6460 * Deprecated function. All mailbox access from user space is performed via the 6461 * bsg interface. 6462 * 6463 * Returns: 6464 * -EPERM operation not permitted 6465 **/ 6466 static ssize_t 6467 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6468 struct bin_attribute *bin_attr, 6469 char *buf, loff_t off, size_t count) 6470 { 6471 return -EPERM; 6472 } 6473 6474 static struct bin_attribute sysfs_mbox_attr = { 6475 .attr = { 6476 .name = "mbox", 6477 .mode = S_IRUSR | S_IWUSR, 6478 }, 6479 .size = MAILBOX_SYSFS_MAX, 6480 .read = sysfs_mbox_read, 6481 .write = sysfs_mbox_write, 6482 }; 6483 6484 /** 6485 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6486 * @vport: address of lpfc vport structure. 6487 * 6488 * Return codes: 6489 * zero on success 6490 * error return code from sysfs_create_bin_file() 6491 **/ 6492 int 6493 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6494 { 6495 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6496 int error; 6497 6498 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6499 &sysfs_drvr_stat_data_attr); 6500 6501 /* Virtual ports do not need ctrl_reg and mbox */ 6502 if (error || vport->port_type == LPFC_NPIV_PORT) 6503 goto out; 6504 6505 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6506 &sysfs_ctlreg_attr); 6507 if (error) 6508 goto out_remove_stat_attr; 6509 6510 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6511 &sysfs_mbox_attr); 6512 if (error) 6513 goto out_remove_ctlreg_attr; 6514 6515 return 0; 6516 out_remove_ctlreg_attr: 6517 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6518 out_remove_stat_attr: 6519 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6520 &sysfs_drvr_stat_data_attr); 6521 out: 6522 return error; 6523 } 6524 6525 /** 6526 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6527 * @vport: address of lpfc vport structure. 6528 **/ 6529 void 6530 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6531 { 6532 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6533 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6534 &sysfs_drvr_stat_data_attr); 6535 /* Virtual ports do not need ctrl_reg and mbox */ 6536 if (vport->port_type == LPFC_NPIV_PORT) 6537 return; 6538 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6539 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6540 } 6541 6542 /* 6543 * Dynamic FC Host Attributes Support 6544 */ 6545 6546 /** 6547 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6548 * @shost: kernel scsi host pointer. 6549 **/ 6550 static void 6551 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6552 { 6553 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6554 6555 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6556 sizeof fc_host_symbolic_name(shost)); 6557 } 6558 6559 /** 6560 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6561 * @shost: kernel scsi host pointer. 6562 **/ 6563 static void 6564 lpfc_get_host_port_id(struct Scsi_Host *shost) 6565 { 6566 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6567 6568 /* note: fc_myDID already in cpu endianness */ 6569 fc_host_port_id(shost) = vport->fc_myDID; 6570 } 6571 6572 /** 6573 * lpfc_get_host_port_type - Set the value of the scsi host port type 6574 * @shost: kernel scsi host pointer. 6575 **/ 6576 static void 6577 lpfc_get_host_port_type(struct Scsi_Host *shost) 6578 { 6579 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6580 struct lpfc_hba *phba = vport->phba; 6581 6582 spin_lock_irq(shost->host_lock); 6583 6584 if (vport->port_type == LPFC_NPIV_PORT) { 6585 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6586 } else if (lpfc_is_link_up(phba)) { 6587 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6588 if (vport->fc_flag & FC_PUBLIC_LOOP) 6589 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6590 else 6591 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6592 } else { 6593 if (vport->fc_flag & FC_FABRIC) 6594 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6595 else 6596 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6597 } 6598 } else 6599 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6600 6601 spin_unlock_irq(shost->host_lock); 6602 } 6603 6604 /** 6605 * lpfc_get_host_port_state - Set the value of the scsi host port state 6606 * @shost: kernel scsi host pointer. 6607 **/ 6608 static void 6609 lpfc_get_host_port_state(struct Scsi_Host *shost) 6610 { 6611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6612 struct lpfc_hba *phba = vport->phba; 6613 6614 spin_lock_irq(shost->host_lock); 6615 6616 if (vport->fc_flag & FC_OFFLINE_MODE) 6617 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6618 else { 6619 switch (phba->link_state) { 6620 case LPFC_LINK_UNKNOWN: 6621 case LPFC_LINK_DOWN: 6622 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6623 break; 6624 case LPFC_LINK_UP: 6625 case LPFC_CLEAR_LA: 6626 case LPFC_HBA_READY: 6627 /* Links up, reports port state accordingly */ 6628 if (vport->port_state < LPFC_VPORT_READY) 6629 fc_host_port_state(shost) = 6630 FC_PORTSTATE_BYPASSED; 6631 else 6632 fc_host_port_state(shost) = 6633 FC_PORTSTATE_ONLINE; 6634 break; 6635 case LPFC_HBA_ERROR: 6636 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6637 break; 6638 default: 6639 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6640 break; 6641 } 6642 } 6643 6644 spin_unlock_irq(shost->host_lock); 6645 } 6646 6647 /** 6648 * lpfc_get_host_speed - Set the value of the scsi host speed 6649 * @shost: kernel scsi host pointer. 6650 **/ 6651 static void 6652 lpfc_get_host_speed(struct Scsi_Host *shost) 6653 { 6654 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6655 struct lpfc_hba *phba = vport->phba; 6656 6657 spin_lock_irq(shost->host_lock); 6658 6659 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6660 switch(phba->fc_linkspeed) { 6661 case LPFC_LINK_SPEED_1GHZ: 6662 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6663 break; 6664 case LPFC_LINK_SPEED_2GHZ: 6665 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6666 break; 6667 case LPFC_LINK_SPEED_4GHZ: 6668 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6669 break; 6670 case LPFC_LINK_SPEED_8GHZ: 6671 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6672 break; 6673 case LPFC_LINK_SPEED_10GHZ: 6674 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6675 break; 6676 case LPFC_LINK_SPEED_16GHZ: 6677 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6678 break; 6679 case LPFC_LINK_SPEED_32GHZ: 6680 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6681 break; 6682 case LPFC_LINK_SPEED_64GHZ: 6683 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6684 break; 6685 case LPFC_LINK_SPEED_128GHZ: 6686 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6687 break; 6688 default: 6689 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6690 break; 6691 } 6692 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6693 switch (phba->fc_linkspeed) { 6694 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6695 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6696 break; 6697 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6698 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6699 break; 6700 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6701 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6702 break; 6703 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6704 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6705 break; 6706 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6707 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6708 break; 6709 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6710 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6711 break; 6712 default: 6713 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6714 break; 6715 } 6716 } else 6717 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6718 6719 spin_unlock_irq(shost->host_lock); 6720 } 6721 6722 /** 6723 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6724 * @shost: kernel scsi host pointer. 6725 **/ 6726 static void 6727 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6728 { 6729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6730 struct lpfc_hba *phba = vport->phba; 6731 u64 node_name; 6732 6733 spin_lock_irq(shost->host_lock); 6734 6735 if ((vport->port_state > LPFC_FLOGI) && 6736 ((vport->fc_flag & FC_FABRIC) || 6737 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6738 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6739 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6740 else 6741 /* fabric is local port if there is no F/FL_Port */ 6742 node_name = 0; 6743 6744 spin_unlock_irq(shost->host_lock); 6745 6746 fc_host_fabric_name(shost) = node_name; 6747 } 6748 6749 /** 6750 * lpfc_get_stats - Return statistical information about the adapter 6751 * @shost: kernel scsi host pointer. 6752 * 6753 * Notes: 6754 * NULL on error for link down, no mbox pool, sli2 active, 6755 * management not allowed, memory allocation error, or mbox error. 6756 * 6757 * Returns: 6758 * NULL for error 6759 * address of the adapter host statistics 6760 **/ 6761 static struct fc_host_statistics * 6762 lpfc_get_stats(struct Scsi_Host *shost) 6763 { 6764 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6765 struct lpfc_hba *phba = vport->phba; 6766 struct lpfc_sli *psli = &phba->sli; 6767 struct fc_host_statistics *hs = &phba->link_stats; 6768 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6769 LPFC_MBOXQ_t *pmboxq; 6770 MAILBOX_t *pmb; 6771 int rc = 0; 6772 6773 /* 6774 * prevent udev from issuing mailbox commands until the port is 6775 * configured. 6776 */ 6777 if (phba->link_state < LPFC_LINK_DOWN || 6778 !phba->mbox_mem_pool || 6779 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6780 return NULL; 6781 6782 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6783 return NULL; 6784 6785 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6786 if (!pmboxq) 6787 return NULL; 6788 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6789 6790 pmb = &pmboxq->u.mb; 6791 pmb->mbxCommand = MBX_READ_STATUS; 6792 pmb->mbxOwner = OWN_HOST; 6793 pmboxq->ctx_buf = NULL; 6794 pmboxq->vport = vport; 6795 6796 if (vport->fc_flag & FC_OFFLINE_MODE) 6797 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6798 else 6799 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6800 6801 if (rc != MBX_SUCCESS) { 6802 if (rc != MBX_TIMEOUT) 6803 mempool_free(pmboxq, phba->mbox_mem_pool); 6804 return NULL; 6805 } 6806 6807 memset(hs, 0, sizeof (struct fc_host_statistics)); 6808 6809 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6810 /* 6811 * The MBX_READ_STATUS returns tx_k_bytes which has to 6812 * converted to words 6813 */ 6814 hs->tx_words = (uint64_t) 6815 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6816 * (uint64_t)256); 6817 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6818 hs->rx_words = (uint64_t) 6819 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6820 * (uint64_t)256); 6821 6822 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6823 pmb->mbxCommand = MBX_READ_LNK_STAT; 6824 pmb->mbxOwner = OWN_HOST; 6825 pmboxq->ctx_buf = NULL; 6826 pmboxq->vport = vport; 6827 6828 if (vport->fc_flag & FC_OFFLINE_MODE) 6829 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6830 else 6831 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6832 6833 if (rc != MBX_SUCCESS) { 6834 if (rc != MBX_TIMEOUT) 6835 mempool_free(pmboxq, phba->mbox_mem_pool); 6836 return NULL; 6837 } 6838 6839 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6840 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6841 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6842 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6843 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6844 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6845 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6846 6847 hs->link_failure_count -= lso->link_failure_count; 6848 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6849 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6850 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6851 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6852 hs->invalid_crc_count -= lso->invalid_crc_count; 6853 hs->error_frames -= lso->error_frames; 6854 6855 if (phba->hba_flag & HBA_FCOE_MODE) { 6856 hs->lip_count = -1; 6857 hs->nos_count = (phba->link_events >> 1); 6858 hs->nos_count -= lso->link_events; 6859 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6860 hs->lip_count = (phba->fc_eventTag >> 1); 6861 hs->lip_count -= lso->link_events; 6862 hs->nos_count = -1; 6863 } else { 6864 hs->lip_count = -1; 6865 hs->nos_count = (phba->fc_eventTag >> 1); 6866 hs->nos_count -= lso->link_events; 6867 } 6868 6869 hs->dumped_frames = -1; 6870 6871 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6872 6873 mempool_free(pmboxq, phba->mbox_mem_pool); 6874 6875 return hs; 6876 } 6877 6878 /** 6879 * lpfc_reset_stats - Copy the adapter link stats information 6880 * @shost: kernel scsi host pointer. 6881 **/ 6882 static void 6883 lpfc_reset_stats(struct Scsi_Host *shost) 6884 { 6885 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6886 struct lpfc_hba *phba = vport->phba; 6887 struct lpfc_sli *psli = &phba->sli; 6888 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6889 LPFC_MBOXQ_t *pmboxq; 6890 MAILBOX_t *pmb; 6891 int rc = 0; 6892 6893 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6894 return; 6895 6896 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6897 if (!pmboxq) 6898 return; 6899 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6900 6901 pmb = &pmboxq->u.mb; 6902 pmb->mbxCommand = MBX_READ_STATUS; 6903 pmb->mbxOwner = OWN_HOST; 6904 pmb->un.varWords[0] = 0x1; /* reset request */ 6905 pmboxq->ctx_buf = NULL; 6906 pmboxq->vport = vport; 6907 6908 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6909 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6910 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6911 else 6912 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6913 6914 if (rc != MBX_SUCCESS) { 6915 if (rc != MBX_TIMEOUT) 6916 mempool_free(pmboxq, phba->mbox_mem_pool); 6917 return; 6918 } 6919 6920 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6921 pmb->mbxCommand = MBX_READ_LNK_STAT; 6922 pmb->mbxOwner = OWN_HOST; 6923 pmboxq->ctx_buf = NULL; 6924 pmboxq->vport = vport; 6925 6926 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6927 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6928 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6929 else 6930 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6931 6932 if (rc != MBX_SUCCESS) { 6933 if (rc != MBX_TIMEOUT) 6934 mempool_free( pmboxq, phba->mbox_mem_pool); 6935 return; 6936 } 6937 6938 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6939 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6940 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6941 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6942 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6943 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6944 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6945 if (phba->hba_flag & HBA_FCOE_MODE) 6946 lso->link_events = (phba->link_events >> 1); 6947 else 6948 lso->link_events = (phba->fc_eventTag >> 1); 6949 6950 psli->stats_start = ktime_get_seconds(); 6951 6952 mempool_free(pmboxq, phba->mbox_mem_pool); 6953 6954 return; 6955 } 6956 6957 /* 6958 * The LPFC driver treats linkdown handling as target loss events so there 6959 * are no sysfs handlers for link_down_tmo. 6960 */ 6961 6962 /** 6963 * lpfc_get_node_by_target - Return the nodelist for a target 6964 * @starget: kernel scsi target pointer. 6965 * 6966 * Returns: 6967 * address of the node list if found 6968 * NULL target not found 6969 **/ 6970 static struct lpfc_nodelist * 6971 lpfc_get_node_by_target(struct scsi_target *starget) 6972 { 6973 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6974 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6975 struct lpfc_nodelist *ndlp; 6976 6977 spin_lock_irq(shost->host_lock); 6978 /* Search for this, mapped, target ID */ 6979 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6980 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6981 starget->id == ndlp->nlp_sid) { 6982 spin_unlock_irq(shost->host_lock); 6983 return ndlp; 6984 } 6985 } 6986 spin_unlock_irq(shost->host_lock); 6987 return NULL; 6988 } 6989 6990 /** 6991 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6992 * @starget: kernel scsi target pointer. 6993 **/ 6994 static void 6995 lpfc_get_starget_port_id(struct scsi_target *starget) 6996 { 6997 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6998 6999 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7000 } 7001 7002 /** 7003 * lpfc_get_starget_node_name - Set the target node name 7004 * @starget: kernel scsi target pointer. 7005 * 7006 * Description: Set the target node name to the ndlp node name wwn or zero. 7007 **/ 7008 static void 7009 lpfc_get_starget_node_name(struct scsi_target *starget) 7010 { 7011 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7012 7013 fc_starget_node_name(starget) = 7014 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7015 } 7016 7017 /** 7018 * lpfc_get_starget_port_name - Set the target port name 7019 * @starget: kernel scsi target pointer. 7020 * 7021 * Description: set the target port name to the ndlp port name wwn or zero. 7022 **/ 7023 static void 7024 lpfc_get_starget_port_name(struct scsi_target *starget) 7025 { 7026 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7027 7028 fc_starget_port_name(starget) = 7029 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7030 } 7031 7032 /** 7033 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7034 * @rport: fc rport address. 7035 * @timeout: new value for dev loss tmo. 7036 * 7037 * Description: 7038 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7039 * dev_loss_tmo to one. 7040 **/ 7041 static void 7042 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7043 { 7044 struct lpfc_rport_data *rdata = rport->dd_data; 7045 struct lpfc_nodelist *ndlp = rdata->pnode; 7046 #if (IS_ENABLED(CONFIG_NVME_FC)) 7047 struct lpfc_nvme_rport *nrport = NULL; 7048 #endif 7049 7050 if (timeout) 7051 rport->dev_loss_tmo = timeout; 7052 else 7053 rport->dev_loss_tmo = 1; 7054 7055 if (!ndlp) { 7056 dev_info(&rport->dev, "Cannot find remote node to " 7057 "set rport dev loss tmo, port_id x%x\n", 7058 rport->port_id); 7059 return; 7060 } 7061 7062 #if (IS_ENABLED(CONFIG_NVME_FC)) 7063 nrport = lpfc_ndlp_get_nrport(ndlp); 7064 7065 if (nrport && nrport->remoteport) 7066 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7067 rport->dev_loss_tmo); 7068 #endif 7069 } 7070 7071 /* 7072 * lpfc_rport_show_function - Return rport target information 7073 * 7074 * Description: 7075 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7076 * 7077 * lpfc_show_rport_##field: returns the bytes formatted in buf 7078 * @cdev: class converted to an fc_rport. 7079 * @buf: on return contains the target_field or zero. 7080 * 7081 * Returns: size of formatted string. 7082 **/ 7083 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7084 static ssize_t \ 7085 lpfc_show_rport_##field (struct device *dev, \ 7086 struct device_attribute *attr, \ 7087 char *buf) \ 7088 { \ 7089 struct fc_rport *rport = transport_class_to_rport(dev); \ 7090 struct lpfc_rport_data *rdata = rport->hostdata; \ 7091 return scnprintf(buf, sz, format_string, \ 7092 (rdata->target) ? cast rdata->target->field : 0); \ 7093 } 7094 7095 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7096 lpfc_rport_show_function(field, format_string, sz, ) \ 7097 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7098 7099 /** 7100 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7101 * @fc_vport: The fc_vport who's symbolic name has been changed. 7102 * 7103 * Description: 7104 * This function is called by the transport after the @fc_vport's symbolic name 7105 * has been changed. This function re-registers the symbolic name with the 7106 * switch to propagate the change into the fabric if the vport is active. 7107 **/ 7108 static void 7109 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7110 { 7111 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7112 7113 if (vport->port_state == LPFC_VPORT_READY) 7114 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7115 } 7116 7117 /** 7118 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7119 * @phba: Pointer to lpfc_hba struct. 7120 * @verbose: Verbose level to set. 7121 * 7122 * This function is called by the lpfc_get_cfgparam() routine to set the 7123 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7124 * log message according to the module's lpfc_log_verbose parameter setting 7125 * before hba port or vport created. 7126 **/ 7127 static void 7128 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7129 { 7130 phba->cfg_log_verbose = verbose; 7131 } 7132 7133 struct fc_function_template lpfc_transport_functions = { 7134 /* fixed attributes the driver supports */ 7135 .show_host_node_name = 1, 7136 .show_host_port_name = 1, 7137 .show_host_supported_classes = 1, 7138 .show_host_supported_fc4s = 1, 7139 .show_host_supported_speeds = 1, 7140 .show_host_maxframe_size = 1, 7141 7142 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7143 .show_host_symbolic_name = 1, 7144 7145 /* dynamic attributes the driver supports */ 7146 .get_host_port_id = lpfc_get_host_port_id, 7147 .show_host_port_id = 1, 7148 7149 .get_host_port_type = lpfc_get_host_port_type, 7150 .show_host_port_type = 1, 7151 7152 .get_host_port_state = lpfc_get_host_port_state, 7153 .show_host_port_state = 1, 7154 7155 /* active_fc4s is shown but doesn't change (thus no get function) */ 7156 .show_host_active_fc4s = 1, 7157 7158 .get_host_speed = lpfc_get_host_speed, 7159 .show_host_speed = 1, 7160 7161 .get_host_fabric_name = lpfc_get_host_fabric_name, 7162 .show_host_fabric_name = 1, 7163 7164 /* 7165 * The LPFC driver treats linkdown handling as target loss events 7166 * so there are no sysfs handlers for link_down_tmo. 7167 */ 7168 7169 .get_fc_host_stats = lpfc_get_stats, 7170 .reset_fc_host_stats = lpfc_reset_stats, 7171 7172 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7173 .show_rport_maxframe_size = 1, 7174 .show_rport_supported_classes = 1, 7175 7176 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7177 .show_rport_dev_loss_tmo = 1, 7178 7179 .get_starget_port_id = lpfc_get_starget_port_id, 7180 .show_starget_port_id = 1, 7181 7182 .get_starget_node_name = lpfc_get_starget_node_name, 7183 .show_starget_node_name = 1, 7184 7185 .get_starget_port_name = lpfc_get_starget_port_name, 7186 .show_starget_port_name = 1, 7187 7188 .issue_fc_host_lip = lpfc_issue_lip, 7189 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7190 .terminate_rport_io = lpfc_terminate_rport_io, 7191 7192 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7193 7194 .vport_disable = lpfc_vport_disable, 7195 7196 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7197 7198 .bsg_request = lpfc_bsg_request, 7199 .bsg_timeout = lpfc_bsg_timeout, 7200 }; 7201 7202 struct fc_function_template lpfc_vport_transport_functions = { 7203 /* fixed attributes the driver supports */ 7204 .show_host_node_name = 1, 7205 .show_host_port_name = 1, 7206 .show_host_supported_classes = 1, 7207 .show_host_supported_fc4s = 1, 7208 .show_host_supported_speeds = 1, 7209 .show_host_maxframe_size = 1, 7210 7211 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7212 .show_host_symbolic_name = 1, 7213 7214 /* dynamic attributes the driver supports */ 7215 .get_host_port_id = lpfc_get_host_port_id, 7216 .show_host_port_id = 1, 7217 7218 .get_host_port_type = lpfc_get_host_port_type, 7219 .show_host_port_type = 1, 7220 7221 .get_host_port_state = lpfc_get_host_port_state, 7222 .show_host_port_state = 1, 7223 7224 /* active_fc4s is shown but doesn't change (thus no get function) */ 7225 .show_host_active_fc4s = 1, 7226 7227 .get_host_speed = lpfc_get_host_speed, 7228 .show_host_speed = 1, 7229 7230 .get_host_fabric_name = lpfc_get_host_fabric_name, 7231 .show_host_fabric_name = 1, 7232 7233 /* 7234 * The LPFC driver treats linkdown handling as target loss events 7235 * so there are no sysfs handlers for link_down_tmo. 7236 */ 7237 7238 .get_fc_host_stats = lpfc_get_stats, 7239 .reset_fc_host_stats = lpfc_reset_stats, 7240 7241 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7242 .show_rport_maxframe_size = 1, 7243 .show_rport_supported_classes = 1, 7244 7245 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7246 .show_rport_dev_loss_tmo = 1, 7247 7248 .get_starget_port_id = lpfc_get_starget_port_id, 7249 .show_starget_port_id = 1, 7250 7251 .get_starget_node_name = lpfc_get_starget_node_name, 7252 .show_starget_node_name = 1, 7253 7254 .get_starget_port_name = lpfc_get_starget_port_name, 7255 .show_starget_port_name = 1, 7256 7257 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7258 .terminate_rport_io = lpfc_terminate_rport_io, 7259 7260 .vport_disable = lpfc_vport_disable, 7261 7262 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7263 }; 7264 7265 /** 7266 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7267 * Mode 7268 * @phba: lpfc_hba pointer. 7269 **/ 7270 static void 7271 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7272 { 7273 /* If the adapter supports FCoE mode */ 7274 switch (phba->pcidev->device) { 7275 case PCI_DEVICE_ID_SKYHAWK: 7276 case PCI_DEVICE_ID_SKYHAWK_VF: 7277 case PCI_DEVICE_ID_LANCER_FCOE: 7278 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7279 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7280 case PCI_DEVICE_ID_HORNET: 7281 case PCI_DEVICE_ID_TIGERSHARK: 7282 case PCI_DEVICE_ID_TOMCAT: 7283 phba->hba_flag |= HBA_FCOE_MODE; 7284 break; 7285 default: 7286 /* for others, clear the flag */ 7287 phba->hba_flag &= ~HBA_FCOE_MODE; 7288 } 7289 } 7290 7291 /** 7292 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7293 * @phba: lpfc_hba pointer. 7294 **/ 7295 void 7296 lpfc_get_cfgparam(struct lpfc_hba *phba) 7297 { 7298 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7299 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7300 lpfc_ns_query_init(phba, lpfc_ns_query); 7301 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7302 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7303 lpfc_cr_count_init(phba, lpfc_cr_count); 7304 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7305 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7306 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7307 lpfc_ack0_init(phba, lpfc_ack0); 7308 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7309 lpfc_topology_init(phba, lpfc_topology); 7310 lpfc_link_speed_init(phba, lpfc_link_speed); 7311 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7312 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7313 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7314 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7315 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7316 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7317 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7318 lpfc_use_msi_init(phba, lpfc_use_msi); 7319 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7320 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7321 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7322 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7323 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7324 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7325 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7326 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7327 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7328 7329 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7330 if (phba->sli_rev != LPFC_SLI_REV4) 7331 phba->cfg_EnableXLane = 0; 7332 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7333 7334 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7335 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7336 phba->cfg_oas_lun_state = 0; 7337 phba->cfg_oas_lun_status = 0; 7338 phba->cfg_oas_flags = 0; 7339 phba->cfg_oas_priority = 0; 7340 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7341 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7342 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7343 if (phba->sli_rev == LPFC_SLI_REV4) 7344 phba->cfg_poll = 0; 7345 else 7346 phba->cfg_poll = lpfc_poll; 7347 7348 /* Get the function mode */ 7349 lpfc_get_hba_function_mode(phba); 7350 7351 /* BlockGuard allowed for FC only. */ 7352 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7353 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7354 "0581 BlockGuard feature not supported\n"); 7355 /* If set, clear the BlockGuard support param */ 7356 phba->cfg_enable_bg = 0; 7357 } else if (phba->cfg_enable_bg) { 7358 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7359 } 7360 7361 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7362 7363 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7364 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7365 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7366 7367 /* Initialize first burst. Target vs Initiator are different. */ 7368 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7369 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7370 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7371 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7372 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7373 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7374 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7375 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7376 7377 if (phba->sli_rev != LPFC_SLI_REV4) { 7378 /* NVME only supported on SLI4 */ 7379 phba->nvmet_support = 0; 7380 phba->cfg_nvmet_mrq = 0; 7381 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7382 phba->cfg_enable_bbcr = 0; 7383 phba->cfg_xri_rebalancing = 0; 7384 } else { 7385 /* We MUST have FCP support */ 7386 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7387 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7388 } 7389 7390 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7391 7392 phba->cfg_enable_pbde = 0; 7393 7394 /* A value of 0 means use the number of CPUs found in the system */ 7395 if (phba->cfg_hdw_queue == 0) 7396 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7397 if (phba->cfg_irq_chann == 0) 7398 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7399 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7400 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7401 7402 phba->cfg_soft_wwnn = 0L; 7403 phba->cfg_soft_wwpn = 0L; 7404 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7405 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7406 lpfc_aer_support_init(phba, lpfc_aer_support); 7407 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7408 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7409 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7410 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7411 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7412 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7413 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7414 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7415 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7416 7417 return; 7418 } 7419 7420 /** 7421 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7422 * dependencies between protocols and roles. 7423 * @phba: lpfc_hba pointer. 7424 **/ 7425 void 7426 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7427 { 7428 int logit = 0; 7429 7430 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7431 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7432 logit = 1; 7433 } 7434 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7435 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7436 logit = 1; 7437 } 7438 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7439 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7440 logit = 1; 7441 } 7442 if (logit) 7443 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7444 "2006 Reducing Queues - CPU limitation: " 7445 "IRQ %d HDWQ %d\n", 7446 phba->cfg_irq_chann, 7447 phba->cfg_hdw_queue); 7448 7449 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7450 phba->nvmet_support) { 7451 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7452 7453 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7454 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7455 "NVME Target PRLI ACC enable_fb ", 7456 phba->cfg_nvme_enable_fb, 7457 phba->cfg_nvmet_fb_size, 7458 LPFC_NVMET_FB_SZ_MAX); 7459 7460 if (phba->cfg_nvme_enable_fb == 0) 7461 phba->cfg_nvmet_fb_size = 0; 7462 else { 7463 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7464 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7465 } 7466 7467 if (!phba->cfg_nvmet_mrq) 7468 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7469 7470 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7471 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7472 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7473 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7474 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7475 phba->cfg_nvmet_mrq); 7476 } 7477 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7478 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7479 7480 } else { 7481 /* Not NVME Target mode. Turn off Target parameters. */ 7482 phba->nvmet_support = 0; 7483 phba->cfg_nvmet_mrq = 0; 7484 phba->cfg_nvmet_fb_size = 0; 7485 } 7486 } 7487 7488 /** 7489 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7490 * @vport: lpfc_vport pointer. 7491 **/ 7492 void 7493 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7494 { 7495 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7496 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7497 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7498 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7499 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7500 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7501 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7502 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7503 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7504 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7505 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7506 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7507 lpfc_max_luns_init(vport, lpfc_max_luns); 7508 lpfc_scan_down_init(vport, lpfc_scan_down); 7509 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7510 return; 7511 } 7512