1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_sli.h" 43 #include "lpfc_sli4.h" 44 #include "lpfc_nl.h" 45 #include "lpfc_disc.h" 46 #include "lpfc.h" 47 #include "lpfc_scsi.h" 48 #include "lpfc_nvme.h" 49 #include "lpfc_logmsg.h" 50 #include "lpfc_version.h" 51 #include "lpfc_compat.h" 52 #include "lpfc_crtn.h" 53 #include "lpfc_vport.h" 54 #include "lpfc_attr.h" 55 56 #define LPFC_DEF_DEVLOSS_TMO 30 57 #define LPFC_MIN_DEVLOSS_TMO 1 58 #define LPFC_MAX_DEVLOSS_TMO 255 59 60 /* 61 * Write key size should be multiple of 4. If write key is changed 62 * make sure that library write key is also changed. 63 */ 64 #define LPFC_REG_WRITE_KEY_SIZE 4 65 #define LPFC_REG_WRITE_KEY "EMLX" 66 67 const char *const trunk_errmsg[] = { /* map errcode */ 68 "", /* There is no such error code at index 0*/ 69 "link negotiated speed does not match existing" 70 " trunk - link was \"low\" speed", 71 "link negotiated speed does not match" 72 " existing trunk - link was \"middle\" speed", 73 "link negotiated speed does not match existing" 74 " trunk - link was \"high\" speed", 75 "Attached to non-trunking port - F_Port", 76 "Attached to non-trunking port - N_Port", 77 "FLOGI response timeout", 78 "non-FLOGI frame received", 79 "Invalid FLOGI response", 80 "Trunking initialization protocol", 81 "Trunk peer device mismatch", 82 }; 83 84 /** 85 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 86 * @incr: integer to convert. 87 * @hdw: ascii string holding converted integer plus a string terminator. 88 * 89 * Description: 90 * JEDEC Joint Electron Device Engineering Council. 91 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 92 * character string. The string is then terminated with a NULL in byte 9. 93 * Hex 0-9 becomes ascii '0' to '9'. 94 * Hex a-f becomes ascii '=' to 'B' capital B. 95 * 96 * Notes: 97 * Coded for 32 bit integers only. 98 **/ 99 static void 100 lpfc_jedec_to_ascii(int incr, char hdw[]) 101 { 102 int i, j; 103 for (i = 0; i < 8; i++) { 104 j = (incr & 0xf); 105 if (j <= 9) 106 hdw[7 - i] = 0x30 + j; 107 else 108 hdw[7 - i] = 0x61 + j - 10; 109 incr = (incr >> 4); 110 } 111 hdw[8] = 0; 112 return; 113 } 114 115 /** 116 * lpfc_drvr_version_show - Return the Emulex driver string with version number 117 * @dev: class unused variable. 118 * @attr: device attribute, not used. 119 * @buf: on return contains the module description text. 120 * 121 * Returns: size of formatted string. 122 **/ 123 static ssize_t 124 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 125 char *buf) 126 { 127 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 128 } 129 130 /** 131 * lpfc_enable_fip_show - Return the fip mode of the HBA 132 * @dev: class unused variable. 133 * @attr: device attribute, not used. 134 * @buf: on return contains the module description text. 135 * 136 * Returns: size of formatted string. 137 **/ 138 static ssize_t 139 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 140 char *buf) 141 { 142 struct Scsi_Host *shost = class_to_shost(dev); 143 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 144 struct lpfc_hba *phba = vport->phba; 145 146 if (phba->hba_flag & HBA_FIP_SUPPORT) 147 return scnprintf(buf, PAGE_SIZE, "1\n"); 148 else 149 return scnprintf(buf, PAGE_SIZE, "0\n"); 150 } 151 152 static ssize_t 153 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 154 char *buf) 155 { 156 struct Scsi_Host *shost = class_to_shost(dev); 157 struct lpfc_vport *vport = shost_priv(shost); 158 struct lpfc_hba *phba = vport->phba; 159 struct lpfc_nvmet_tgtport *tgtp; 160 struct nvme_fc_local_port *localport; 161 struct lpfc_nvme_lport *lport; 162 struct lpfc_nvme_rport *rport; 163 struct lpfc_nodelist *ndlp; 164 struct nvme_fc_remote_port *nrport; 165 struct lpfc_fc4_ctrl_stat *cstat; 166 uint64_t data1, data2, data3; 167 uint64_t totin, totout, tot; 168 char *statep; 169 int i; 170 int len = 0; 171 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 172 173 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 174 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 175 return len; 176 } 177 if (phba->nvmet_support) { 178 if (!phba->targetport) { 179 len = scnprintf(buf, PAGE_SIZE, 180 "NVME Target: x%llx is not allocated\n", 181 wwn_to_u64(vport->fc_portname.u.wwn)); 182 return len; 183 } 184 /* Port state is only one of two values for now. */ 185 if (phba->targetport->port_id) 186 statep = "REGISTERED"; 187 else 188 statep = "INIT"; 189 scnprintf(tmp, sizeof(tmp), 190 "NVME Target Enabled State %s\n", 191 statep); 192 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 193 goto buffer_done; 194 195 scnprintf(tmp, sizeof(tmp), 196 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 197 "NVME Target: lpfc", 198 phba->brd_no, 199 wwn_to_u64(vport->fc_portname.u.wwn), 200 wwn_to_u64(vport->fc_nodename.u.wwn), 201 phba->targetport->port_id); 202 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 203 goto buffer_done; 204 205 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 206 >= PAGE_SIZE) 207 goto buffer_done; 208 209 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 210 scnprintf(tmp, sizeof(tmp), 211 "LS: Rcv %08x Drop %08x Abort %08x\n", 212 atomic_read(&tgtp->rcv_ls_req_in), 213 atomic_read(&tgtp->rcv_ls_req_drop), 214 atomic_read(&tgtp->xmt_ls_abort)); 215 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 216 goto buffer_done; 217 218 if (atomic_read(&tgtp->rcv_ls_req_in) != 219 atomic_read(&tgtp->rcv_ls_req_out)) { 220 scnprintf(tmp, sizeof(tmp), 221 "Rcv LS: in %08x != out %08x\n", 222 atomic_read(&tgtp->rcv_ls_req_in), 223 atomic_read(&tgtp->rcv_ls_req_out)); 224 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 225 goto buffer_done; 226 } 227 228 scnprintf(tmp, sizeof(tmp), 229 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 230 atomic_read(&tgtp->xmt_ls_rsp), 231 atomic_read(&tgtp->xmt_ls_drop), 232 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 233 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 234 goto buffer_done; 235 236 scnprintf(tmp, sizeof(tmp), 237 "LS: RSP Abort %08x xb %08x Err %08x\n", 238 atomic_read(&tgtp->xmt_ls_rsp_aborted), 239 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 240 atomic_read(&tgtp->xmt_ls_rsp_error)); 241 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 242 goto buffer_done; 243 244 scnprintf(tmp, sizeof(tmp), 245 "FCP: Rcv %08x Defer %08x Release %08x " 246 "Drop %08x\n", 247 atomic_read(&tgtp->rcv_fcp_cmd_in), 248 atomic_read(&tgtp->rcv_fcp_cmd_defer), 249 atomic_read(&tgtp->xmt_fcp_release), 250 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 251 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 252 goto buffer_done; 253 254 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 255 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 256 scnprintf(tmp, sizeof(tmp), 257 "Rcv FCP: in %08x != out %08x\n", 258 atomic_read(&tgtp->rcv_fcp_cmd_in), 259 atomic_read(&tgtp->rcv_fcp_cmd_out)); 260 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 261 goto buffer_done; 262 } 263 264 scnprintf(tmp, sizeof(tmp), 265 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 266 "drop %08x\n", 267 atomic_read(&tgtp->xmt_fcp_read), 268 atomic_read(&tgtp->xmt_fcp_read_rsp), 269 atomic_read(&tgtp->xmt_fcp_write), 270 atomic_read(&tgtp->xmt_fcp_rsp), 271 atomic_read(&tgtp->xmt_fcp_drop)); 272 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 273 goto buffer_done; 274 275 scnprintf(tmp, sizeof(tmp), 276 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 277 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 278 atomic_read(&tgtp->xmt_fcp_rsp_error), 279 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 280 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 281 goto buffer_done; 282 283 scnprintf(tmp, sizeof(tmp), 284 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 285 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 286 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 287 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 288 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 289 goto buffer_done; 290 291 scnprintf(tmp, sizeof(tmp), 292 "ABORT: Xmt %08x Cmpl %08x\n", 293 atomic_read(&tgtp->xmt_fcp_abort), 294 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 295 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 296 goto buffer_done; 297 298 scnprintf(tmp, sizeof(tmp), 299 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 300 atomic_read(&tgtp->xmt_abort_sol), 301 atomic_read(&tgtp->xmt_abort_unsol), 302 atomic_read(&tgtp->xmt_abort_rsp), 303 atomic_read(&tgtp->xmt_abort_rsp_error)); 304 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 305 goto buffer_done; 306 307 scnprintf(tmp, sizeof(tmp), 308 "DELAY: ctx %08x fod %08x wqfull %08x\n", 309 atomic_read(&tgtp->defer_ctx), 310 atomic_read(&tgtp->defer_fod), 311 atomic_read(&tgtp->defer_wqfull)); 312 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 313 goto buffer_done; 314 315 /* Calculate outstanding IOs */ 316 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 317 tot += atomic_read(&tgtp->xmt_fcp_release); 318 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 319 320 scnprintf(tmp, sizeof(tmp), 321 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 322 "CTX Outstanding %08llx\n\n", 323 phba->sli4_hba.nvmet_xri_cnt, 324 phba->sli4_hba.nvmet_io_wait_cnt, 325 phba->sli4_hba.nvmet_io_wait_total, 326 tot); 327 strlcat(buf, tmp, PAGE_SIZE); 328 goto buffer_done; 329 } 330 331 localport = vport->localport; 332 if (!localport) { 333 len = scnprintf(buf, PAGE_SIZE, 334 "NVME Initiator x%llx is not allocated\n", 335 wwn_to_u64(vport->fc_portname.u.wwn)); 336 return len; 337 } 338 lport = (struct lpfc_nvme_lport *)localport->private; 339 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 340 goto buffer_done; 341 342 scnprintf(tmp, sizeof(tmp), 343 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 344 phba->brd_no, 345 phba->sli4_hba.max_cfg_param.max_xri, 346 phba->sli4_hba.io_xri_max, 347 lpfc_sli4_get_els_iocb_cnt(phba)); 348 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 349 goto buffer_done; 350 351 /* Port state is only one of two values for now. */ 352 if (localport->port_id) 353 statep = "ONLINE"; 354 else 355 statep = "UNKNOWN "; 356 357 scnprintf(tmp, sizeof(tmp), 358 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 359 "NVME LPORT lpfc", 360 phba->brd_no, 361 wwn_to_u64(vport->fc_portname.u.wwn), 362 wwn_to_u64(vport->fc_nodename.u.wwn), 363 localport->port_id, statep); 364 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 365 goto buffer_done; 366 367 spin_lock_irq(shost->host_lock); 368 369 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 370 nrport = NULL; 371 spin_lock(&ndlp->lock); 372 rport = lpfc_ndlp_get_nrport(ndlp); 373 if (rport) 374 nrport = rport->remoteport; 375 spin_unlock(&ndlp->lock); 376 if (!nrport) 377 continue; 378 379 /* Port state is only one of two values for now. */ 380 switch (nrport->port_state) { 381 case FC_OBJSTATE_ONLINE: 382 statep = "ONLINE"; 383 break; 384 case FC_OBJSTATE_UNKNOWN: 385 statep = "UNKNOWN "; 386 break; 387 default: 388 statep = "UNSUPPORTED"; 389 break; 390 } 391 392 /* Tab in to show lport ownership. */ 393 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 394 goto unlock_buf_done; 395 if (phba->brd_no >= 10) { 396 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 397 goto unlock_buf_done; 398 } 399 400 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 401 nrport->port_name); 402 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 403 goto unlock_buf_done; 404 405 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 406 nrport->node_name); 407 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 408 goto unlock_buf_done; 409 410 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 411 nrport->port_id); 412 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 413 goto unlock_buf_done; 414 415 /* An NVME rport can have multiple roles. */ 416 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 417 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 418 goto unlock_buf_done; 419 } 420 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 421 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 422 goto unlock_buf_done; 423 } 424 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 425 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 426 goto unlock_buf_done; 427 } 428 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 429 FC_PORT_ROLE_NVME_TARGET | 430 FC_PORT_ROLE_NVME_DISCOVERY)) { 431 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 432 nrport->port_role); 433 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 434 goto unlock_buf_done; 435 } 436 437 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 438 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 439 goto unlock_buf_done; 440 } 441 spin_unlock_irq(shost->host_lock); 442 443 if (!lport) 444 goto buffer_done; 445 446 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 447 goto buffer_done; 448 449 scnprintf(tmp, sizeof(tmp), 450 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 451 atomic_read(&lport->fc4NvmeLsRequests), 452 atomic_read(&lport->fc4NvmeLsCmpls), 453 atomic_read(&lport->xmt_ls_abort)); 454 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 455 goto buffer_done; 456 457 scnprintf(tmp, sizeof(tmp), 458 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 459 atomic_read(&lport->xmt_ls_err), 460 atomic_read(&lport->cmpl_ls_xb), 461 atomic_read(&lport->cmpl_ls_err)); 462 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 463 goto buffer_done; 464 465 totin = 0; 466 totout = 0; 467 for (i = 0; i < phba->cfg_hdw_queue; i++) { 468 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 469 tot = cstat->io_cmpls; 470 totin += tot; 471 data1 = cstat->input_requests; 472 data2 = cstat->output_requests; 473 data3 = cstat->control_requests; 474 totout += (data1 + data2 + data3); 475 } 476 scnprintf(tmp, sizeof(tmp), 477 "Total FCP Cmpl %016llx Issue %016llx " 478 "OutIO %016llx\n", 479 totin, totout, totout - totin); 480 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 481 goto buffer_done; 482 483 scnprintf(tmp, sizeof(tmp), 484 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 485 "wqerr %08x err %08x\n", 486 atomic_read(&lport->xmt_fcp_abort), 487 atomic_read(&lport->xmt_fcp_noxri), 488 atomic_read(&lport->xmt_fcp_bad_ndlp), 489 atomic_read(&lport->xmt_fcp_qdepth), 490 atomic_read(&lport->xmt_fcp_wqerr), 491 atomic_read(&lport->xmt_fcp_err)); 492 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 493 goto buffer_done; 494 495 scnprintf(tmp, sizeof(tmp), 496 "FCP CMPL: xb %08x Err %08x\n", 497 atomic_read(&lport->cmpl_fcp_xb), 498 atomic_read(&lport->cmpl_fcp_err)); 499 strlcat(buf, tmp, PAGE_SIZE); 500 501 /* host_lock is already unlocked. */ 502 goto buffer_done; 503 504 unlock_buf_done: 505 spin_unlock_irq(shost->host_lock); 506 507 buffer_done: 508 len = strnlen(buf, PAGE_SIZE); 509 510 if (unlikely(len >= (PAGE_SIZE - 1))) { 511 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 512 "6314 Catching potential buffer " 513 "overflow > PAGE_SIZE = %lu bytes\n", 514 PAGE_SIZE); 515 strlcpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_NVME_INFO_MORE_STR), 516 LPFC_NVME_INFO_MORE_STR, 517 sizeof(LPFC_NVME_INFO_MORE_STR) + 1); 518 } 519 520 return len; 521 } 522 523 static ssize_t 524 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 525 char *buf) 526 { 527 struct Scsi_Host *shost = class_to_shost(dev); 528 struct lpfc_vport *vport = shost_priv(shost); 529 struct lpfc_hba *phba = vport->phba; 530 int len; 531 struct lpfc_fc4_ctrl_stat *cstat; 532 u64 data1, data2, data3; 533 u64 tot, totin, totout; 534 int i; 535 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 536 537 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 538 (phba->sli_rev != LPFC_SLI_REV4)) 539 return 0; 540 541 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 542 543 totin = 0; 544 totout = 0; 545 for (i = 0; i < phba->cfg_hdw_queue; i++) { 546 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 547 tot = cstat->io_cmpls; 548 totin += tot; 549 data1 = cstat->input_requests; 550 data2 = cstat->output_requests; 551 data3 = cstat->control_requests; 552 totout += (data1 + data2 + data3); 553 554 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 555 "IO %016llx ", i, data1, data2, data3); 556 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 557 goto buffer_done; 558 559 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 560 tot, ((data1 + data2 + data3) - tot)); 561 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 562 goto buffer_done; 563 } 564 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 565 "OutIO %016llx\n", totin, totout, totout - totin); 566 strlcat(buf, tmp, PAGE_SIZE); 567 568 buffer_done: 569 len = strnlen(buf, PAGE_SIZE); 570 571 return len; 572 } 573 574 static ssize_t 575 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 576 char *buf) 577 { 578 struct Scsi_Host *shost = class_to_shost(dev); 579 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 580 struct lpfc_hba *phba = vport->phba; 581 582 if (phba->cfg_enable_bg) { 583 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 584 return scnprintf(buf, PAGE_SIZE, 585 "BlockGuard Enabled\n"); 586 else 587 return scnprintf(buf, PAGE_SIZE, 588 "BlockGuard Not Supported\n"); 589 } else 590 return scnprintf(buf, PAGE_SIZE, 591 "BlockGuard Disabled\n"); 592 } 593 594 static ssize_t 595 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 596 char *buf) 597 { 598 struct Scsi_Host *shost = class_to_shost(dev); 599 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 600 struct lpfc_hba *phba = vport->phba; 601 602 return scnprintf(buf, PAGE_SIZE, "%llu\n", 603 (unsigned long long)phba->bg_guard_err_cnt); 604 } 605 606 static ssize_t 607 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 608 char *buf) 609 { 610 struct Scsi_Host *shost = class_to_shost(dev); 611 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 612 struct lpfc_hba *phba = vport->phba; 613 614 return scnprintf(buf, PAGE_SIZE, "%llu\n", 615 (unsigned long long)phba->bg_apptag_err_cnt); 616 } 617 618 static ssize_t 619 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 620 char *buf) 621 { 622 struct Scsi_Host *shost = class_to_shost(dev); 623 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 624 struct lpfc_hba *phba = vport->phba; 625 626 return scnprintf(buf, PAGE_SIZE, "%llu\n", 627 (unsigned long long)phba->bg_reftag_err_cnt); 628 } 629 630 /** 631 * lpfc_info_show - Return some pci info about the host in ascii 632 * @dev: class converted to a Scsi_host structure. 633 * @attr: device attribute, not used. 634 * @buf: on return contains the formatted text from lpfc_info(). 635 * 636 * Returns: size of formatted string. 637 **/ 638 static ssize_t 639 lpfc_info_show(struct device *dev, struct device_attribute *attr, 640 char *buf) 641 { 642 struct Scsi_Host *host = class_to_shost(dev); 643 644 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 645 } 646 647 /** 648 * lpfc_serialnum_show - Return the hba serial number in ascii 649 * @dev: class converted to a Scsi_host structure. 650 * @attr: device attribute, not used. 651 * @buf: on return contains the formatted text serial number. 652 * 653 * Returns: size of formatted string. 654 **/ 655 static ssize_t 656 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 657 char *buf) 658 { 659 struct Scsi_Host *shost = class_to_shost(dev); 660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 661 struct lpfc_hba *phba = vport->phba; 662 663 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 664 } 665 666 /** 667 * lpfc_temp_sensor_show - Return the temperature sensor level 668 * @dev: class converted to a Scsi_host structure. 669 * @attr: device attribute, not used. 670 * @buf: on return contains the formatted support level. 671 * 672 * Description: 673 * Returns a number indicating the temperature sensor level currently 674 * supported, zero or one in ascii. 675 * 676 * Returns: size of formatted string. 677 **/ 678 static ssize_t 679 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 680 char *buf) 681 { 682 struct Scsi_Host *shost = class_to_shost(dev); 683 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 684 struct lpfc_hba *phba = vport->phba; 685 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 686 } 687 688 /** 689 * lpfc_modeldesc_show - Return the model description of the hba 690 * @dev: class converted to a Scsi_host structure. 691 * @attr: device attribute, not used. 692 * @buf: on return contains the scsi vpd model description. 693 * 694 * Returns: size of formatted string. 695 **/ 696 static ssize_t 697 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 698 char *buf) 699 { 700 struct Scsi_Host *shost = class_to_shost(dev); 701 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 702 struct lpfc_hba *phba = vport->phba; 703 704 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 705 } 706 707 /** 708 * lpfc_modelname_show - Return the model name of the hba 709 * @dev: class converted to a Scsi_host structure. 710 * @attr: device attribute, not used. 711 * @buf: on return contains the scsi vpd model name. 712 * 713 * Returns: size of formatted string. 714 **/ 715 static ssize_t 716 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 717 char *buf) 718 { 719 struct Scsi_Host *shost = class_to_shost(dev); 720 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 721 struct lpfc_hba *phba = vport->phba; 722 723 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 724 } 725 726 /** 727 * lpfc_programtype_show - Return the program type of the hba 728 * @dev: class converted to a Scsi_host structure. 729 * @attr: device attribute, not used. 730 * @buf: on return contains the scsi vpd program type. 731 * 732 * Returns: size of formatted string. 733 **/ 734 static ssize_t 735 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 736 char *buf) 737 { 738 struct Scsi_Host *shost = class_to_shost(dev); 739 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 740 struct lpfc_hba *phba = vport->phba; 741 742 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 743 } 744 745 /** 746 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 747 * @dev: class converted to a Scsi_host structure. 748 * @attr: device attribute, not used. 749 * @buf: on return contains the Menlo Maintenance sli flag. 750 * 751 * Returns: size of formatted string. 752 **/ 753 static ssize_t 754 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 755 { 756 struct Scsi_Host *shost = class_to_shost(dev); 757 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 758 struct lpfc_hba *phba = vport->phba; 759 760 return scnprintf(buf, PAGE_SIZE, "%d\n", 761 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 762 } 763 764 /** 765 * lpfc_vportnum_show - Return the port number in ascii of the hba 766 * @dev: class converted to a Scsi_host structure. 767 * @attr: device attribute, not used. 768 * @buf: on return contains scsi vpd program type. 769 * 770 * Returns: size of formatted string. 771 **/ 772 static ssize_t 773 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 774 char *buf) 775 { 776 struct Scsi_Host *shost = class_to_shost(dev); 777 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 778 struct lpfc_hba *phba = vport->phba; 779 780 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 781 } 782 783 /** 784 * lpfc_fwrev_show - Return the firmware rev running in the hba 785 * @dev: class converted to a Scsi_host structure. 786 * @attr: device attribute, not used. 787 * @buf: on return contains the scsi vpd program type. 788 * 789 * Returns: size of formatted string. 790 **/ 791 static ssize_t 792 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 793 char *buf) 794 { 795 struct Scsi_Host *shost = class_to_shost(dev); 796 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 797 struct lpfc_hba *phba = vport->phba; 798 uint32_t if_type; 799 uint8_t sli_family; 800 char fwrev[FW_REV_STR_SIZE]; 801 int len; 802 803 lpfc_decode_firmware_rev(phba, fwrev, 1); 804 if_type = phba->sli4_hba.pc_sli4_params.if_type; 805 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 806 807 if (phba->sli_rev < LPFC_SLI_REV4) 808 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 809 fwrev, phba->sli_rev); 810 else 811 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 812 fwrev, phba->sli_rev, if_type, sli_family); 813 814 return len; 815 } 816 817 /** 818 * lpfc_hdw_show - Return the jedec information about the hba 819 * @dev: class converted to a Scsi_host structure. 820 * @attr: device attribute, not used. 821 * @buf: on return contains the scsi vpd program type. 822 * 823 * Returns: size of formatted string. 824 **/ 825 static ssize_t 826 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 827 { 828 char hdw[9]; 829 struct Scsi_Host *shost = class_to_shost(dev); 830 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 831 struct lpfc_hba *phba = vport->phba; 832 lpfc_vpd_t *vp = &phba->vpd; 833 834 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 835 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 836 vp->rev.smRev, vp->rev.smFwRev); 837 } 838 839 /** 840 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 841 * @dev: class converted to a Scsi_host structure. 842 * @attr: device attribute, not used. 843 * @buf: on return contains the ROM and FCode ascii strings. 844 * 845 * Returns: size of formatted string. 846 **/ 847 static ssize_t 848 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 849 char *buf) 850 { 851 struct Scsi_Host *shost = class_to_shost(dev); 852 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 853 struct lpfc_hba *phba = vport->phba; 854 char fwrev[FW_REV_STR_SIZE]; 855 856 if (phba->sli_rev < LPFC_SLI_REV4) 857 return scnprintf(buf, PAGE_SIZE, "%s\n", 858 phba->OptionROMVersion); 859 860 lpfc_decode_firmware_rev(phba, fwrev, 1); 861 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 862 } 863 864 /** 865 * lpfc_link_state_show - Return the link state of the port 866 * @dev: class converted to a Scsi_host structure. 867 * @attr: device attribute, not used. 868 * @buf: on return contains text describing the state of the link. 869 * 870 * Notes: 871 * The switch statement has no default so zero will be returned. 872 * 873 * Returns: size of formatted string. 874 **/ 875 static ssize_t 876 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 877 char *buf) 878 { 879 struct Scsi_Host *shost = class_to_shost(dev); 880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 881 struct lpfc_hba *phba = vport->phba; 882 int len = 0; 883 884 switch (phba->link_state) { 885 case LPFC_LINK_UNKNOWN: 886 case LPFC_WARM_START: 887 case LPFC_INIT_START: 888 case LPFC_INIT_MBX_CMDS: 889 case LPFC_LINK_DOWN: 890 case LPFC_HBA_ERROR: 891 if (phba->hba_flag & LINK_DISABLED) 892 len += scnprintf(buf + len, PAGE_SIZE-len, 893 "Link Down - User disabled\n"); 894 else 895 len += scnprintf(buf + len, PAGE_SIZE-len, 896 "Link Down\n"); 897 break; 898 case LPFC_LINK_UP: 899 case LPFC_CLEAR_LA: 900 case LPFC_HBA_READY: 901 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 902 903 switch (vport->port_state) { 904 case LPFC_LOCAL_CFG_LINK: 905 len += scnprintf(buf + len, PAGE_SIZE-len, 906 "Configuring Link\n"); 907 break; 908 case LPFC_FDISC: 909 case LPFC_FLOGI: 910 case LPFC_FABRIC_CFG_LINK: 911 case LPFC_NS_REG: 912 case LPFC_NS_QRY: 913 case LPFC_BUILD_DISC_LIST: 914 case LPFC_DISC_AUTH: 915 len += scnprintf(buf + len, PAGE_SIZE - len, 916 "Discovery\n"); 917 break; 918 case LPFC_VPORT_READY: 919 len += scnprintf(buf + len, PAGE_SIZE - len, 920 "Ready\n"); 921 break; 922 923 case LPFC_VPORT_FAILED: 924 len += scnprintf(buf + len, PAGE_SIZE - len, 925 "Failed\n"); 926 break; 927 928 case LPFC_VPORT_UNKNOWN: 929 len += scnprintf(buf + len, PAGE_SIZE - len, 930 "Unknown\n"); 931 break; 932 } 933 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 934 len += scnprintf(buf + len, PAGE_SIZE-len, 935 " Menlo Maint Mode\n"); 936 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 937 if (vport->fc_flag & FC_PUBLIC_LOOP) 938 len += scnprintf(buf + len, PAGE_SIZE-len, 939 " Public Loop\n"); 940 else 941 len += scnprintf(buf + len, PAGE_SIZE-len, 942 " Private Loop\n"); 943 } else { 944 if (vport->fc_flag & FC_FABRIC) 945 len += scnprintf(buf + len, PAGE_SIZE-len, 946 " Fabric\n"); 947 else 948 len += scnprintf(buf + len, PAGE_SIZE-len, 949 " Point-2-Point\n"); 950 } 951 } 952 953 if ((phba->sli_rev == LPFC_SLI_REV4) && 954 ((bf_get(lpfc_sli_intf_if_type, 955 &phba->sli4_hba.sli_intf) == 956 LPFC_SLI_INTF_IF_TYPE_6))) { 957 struct lpfc_trunk_link link = phba->trunk_link; 958 959 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 960 len += scnprintf(buf + len, PAGE_SIZE - len, 961 "Trunk port 0: Link %s %s\n", 962 (link.link0.state == LPFC_LINK_UP) ? 963 "Up" : "Down. ", 964 trunk_errmsg[link.link0.fault]); 965 966 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 967 len += scnprintf(buf + len, PAGE_SIZE - len, 968 "Trunk port 1: Link %s %s\n", 969 (link.link1.state == LPFC_LINK_UP) ? 970 "Up" : "Down. ", 971 trunk_errmsg[link.link1.fault]); 972 973 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 974 len += scnprintf(buf + len, PAGE_SIZE - len, 975 "Trunk port 2: Link %s %s\n", 976 (link.link2.state == LPFC_LINK_UP) ? 977 "Up" : "Down. ", 978 trunk_errmsg[link.link2.fault]); 979 980 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 981 len += scnprintf(buf + len, PAGE_SIZE - len, 982 "Trunk port 3: Link %s %s\n", 983 (link.link3.state == LPFC_LINK_UP) ? 984 "Up" : "Down. ", 985 trunk_errmsg[link.link3.fault]); 986 987 } 988 989 return len; 990 } 991 992 /** 993 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 994 * @dev: class unused variable. 995 * @attr: device attribute, not used. 996 * @buf: on return contains the module description text. 997 * 998 * Returns: size of formatted string. 999 **/ 1000 static ssize_t 1001 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1002 char *buf) 1003 { 1004 struct Scsi_Host *shost = class_to_shost(dev); 1005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1006 struct lpfc_hba *phba = vport->phba; 1007 1008 if (phba->sli_rev < LPFC_SLI_REV4) 1009 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1010 1011 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1012 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1013 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1014 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1015 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1016 } 1017 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1018 } 1019 1020 /** 1021 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1022 * (OAS) is supported. 1023 * @dev: class unused variable. 1024 * @attr: device attribute, not used. 1025 * @buf: on return contains the module description text. 1026 * 1027 * Returns: size of formatted string. 1028 **/ 1029 static ssize_t 1030 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1031 char *buf) 1032 { 1033 struct Scsi_Host *shost = class_to_shost(dev); 1034 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1035 struct lpfc_hba *phba = vport->phba; 1036 1037 return scnprintf(buf, PAGE_SIZE, "%d\n", 1038 phba->sli4_hba.pc_sli4_params.oas_supported); 1039 } 1040 1041 /** 1042 * lpfc_link_state_store - Transition the link_state on an HBA port 1043 * @dev: class device that is converted into a Scsi_host. 1044 * @attr: device attribute, not used. 1045 * @buf: one or more lpfc_polling_flags values. 1046 * @count: not used. 1047 * 1048 * Returns: 1049 * -EINVAL if the buffer is not "up" or "down" 1050 * return from link state change function if non-zero 1051 * length of the buf on success 1052 **/ 1053 static ssize_t 1054 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1055 const char *buf, size_t count) 1056 { 1057 struct Scsi_Host *shost = class_to_shost(dev); 1058 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1059 struct lpfc_hba *phba = vport->phba; 1060 1061 int status = -EINVAL; 1062 1063 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1064 (phba->link_state == LPFC_LINK_DOWN)) 1065 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1066 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1067 (phba->link_state >= LPFC_LINK_UP)) 1068 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1069 1070 if (status == 0) 1071 return strlen(buf); 1072 else 1073 return status; 1074 } 1075 1076 /** 1077 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1078 * @dev: class device that is converted into a Scsi_host. 1079 * @attr: device attribute, not used. 1080 * @buf: on return contains the sum of fc mapped and unmapped. 1081 * 1082 * Description: 1083 * Returns the ascii text number of the sum of the fc mapped and unmapped 1084 * vport counts. 1085 * 1086 * Returns: size of formatted string. 1087 **/ 1088 static ssize_t 1089 lpfc_num_discovered_ports_show(struct device *dev, 1090 struct device_attribute *attr, char *buf) 1091 { 1092 struct Scsi_Host *shost = class_to_shost(dev); 1093 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1094 1095 return scnprintf(buf, PAGE_SIZE, "%d\n", 1096 vport->fc_map_cnt + vport->fc_unmap_cnt); 1097 } 1098 1099 /** 1100 * lpfc_issue_lip - Misnomer, name carried over from long ago 1101 * @shost: Scsi_Host pointer. 1102 * 1103 * Description: 1104 * Bring the link down gracefully then re-init the link. The firmware will 1105 * re-init the fiber channel interface as required. Does not issue a LIP. 1106 * 1107 * Returns: 1108 * -EPERM port offline or management commands are being blocked 1109 * -ENOMEM cannot allocate memory for the mailbox command 1110 * -EIO error sending the mailbox command 1111 * zero for success 1112 **/ 1113 static int 1114 lpfc_issue_lip(struct Scsi_Host *shost) 1115 { 1116 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1117 struct lpfc_hba *phba = vport->phba; 1118 LPFC_MBOXQ_t *pmboxq; 1119 int mbxstatus = MBXERR_ERROR; 1120 1121 /* 1122 * If the link is offline, disabled or BLOCK_MGMT_IO 1123 * it doesn't make any sense to allow issue_lip 1124 */ 1125 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1126 (phba->hba_flag & LINK_DISABLED) || 1127 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1128 return -EPERM; 1129 1130 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1131 1132 if (!pmboxq) 1133 return -ENOMEM; 1134 1135 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1136 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1137 pmboxq->u.mb.mbxOwner = OWN_HOST; 1138 1139 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1140 1141 if ((mbxstatus == MBX_SUCCESS) && 1142 (pmboxq->u.mb.mbxStatus == 0 || 1143 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1144 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1145 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1146 phba->cfg_link_speed); 1147 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1148 phba->fc_ratov * 2); 1149 if ((mbxstatus == MBX_SUCCESS) && 1150 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1151 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1152 "2859 SLI authentication is required " 1153 "for INIT_LINK but has not done yet\n"); 1154 } 1155 1156 lpfc_set_loopback_flag(phba); 1157 if (mbxstatus != MBX_TIMEOUT) 1158 mempool_free(pmboxq, phba->mbox_mem_pool); 1159 1160 if (mbxstatus == MBXERR_ERROR) 1161 return -EIO; 1162 1163 return 0; 1164 } 1165 1166 int 1167 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1168 { 1169 int cnt = 0; 1170 1171 spin_lock_irq(lock); 1172 while (!list_empty(q)) { 1173 spin_unlock_irq(lock); 1174 msleep(20); 1175 if (cnt++ > 250) { /* 5 secs */ 1176 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1177 "0466 Outstanding IO when " 1178 "bringing Adapter offline\n"); 1179 return 0; 1180 } 1181 spin_lock_irq(lock); 1182 } 1183 spin_unlock_irq(lock); 1184 return 1; 1185 } 1186 1187 /** 1188 * lpfc_do_offline - Issues a mailbox command to bring the link down 1189 * @phba: lpfc_hba pointer. 1190 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1191 * 1192 * Notes: 1193 * Assumes any error from lpfc_do_offline() will be negative. 1194 * Can wait up to 5 seconds for the port ring buffers count 1195 * to reach zero, prints a warning if it is not zero and continues. 1196 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1197 * 1198 * Returns: 1199 * -EIO error posting the event 1200 * zero for success 1201 **/ 1202 static int 1203 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1204 { 1205 struct completion online_compl; 1206 struct lpfc_queue *qp = NULL; 1207 struct lpfc_sli_ring *pring; 1208 struct lpfc_sli *psli; 1209 int status = 0; 1210 int i; 1211 int rc; 1212 1213 init_completion(&online_compl); 1214 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1215 LPFC_EVT_OFFLINE_PREP); 1216 if (rc == 0) 1217 return -ENOMEM; 1218 1219 wait_for_completion(&online_compl); 1220 1221 if (status != 0) 1222 return -EIO; 1223 1224 psli = &phba->sli; 1225 1226 /* 1227 * If freeing the queues have already started, don't access them. 1228 * Otherwise set FREE_WAIT to indicate that queues are being used 1229 * to hold the freeing process until we finish. 1230 */ 1231 spin_lock_irq(&phba->hbalock); 1232 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1233 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1234 } else { 1235 spin_unlock_irq(&phba->hbalock); 1236 goto skip_wait; 1237 } 1238 spin_unlock_irq(&phba->hbalock); 1239 1240 /* Wait a little for things to settle down, but not 1241 * long enough for dev loss timeout to expire. 1242 */ 1243 if (phba->sli_rev != LPFC_SLI_REV4) { 1244 for (i = 0; i < psli->num_rings; i++) { 1245 pring = &psli->sli3_ring[i]; 1246 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1247 &phba->hbalock)) 1248 goto out; 1249 } 1250 } else { 1251 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1252 pring = qp->pring; 1253 if (!pring) 1254 continue; 1255 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1256 &pring->ring_lock)) 1257 goto out; 1258 } 1259 } 1260 out: 1261 spin_lock_irq(&phba->hbalock); 1262 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1263 spin_unlock_irq(&phba->hbalock); 1264 1265 skip_wait: 1266 init_completion(&online_compl); 1267 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1268 if (rc == 0) 1269 return -ENOMEM; 1270 1271 wait_for_completion(&online_compl); 1272 1273 if (status != 0) 1274 return -EIO; 1275 1276 return 0; 1277 } 1278 1279 /** 1280 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1281 * @phba: lpfc_hba pointer. 1282 * 1283 * Description: 1284 * Issues a PCI secondary bus reset for the phba->pcidev. 1285 * 1286 * Notes: 1287 * First walks the bus_list to ensure only PCI devices with Emulex 1288 * vendor id, device ids that support hot reset, only one occurrence 1289 * of function 0, and all ports on the bus are in offline mode to ensure the 1290 * hot reset only affects one valid HBA. 1291 * 1292 * Returns: 1293 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1294 * -ENODEV, NULL ptr to pcidev 1295 * -EBADSLT, detected invalid device 1296 * -EBUSY, port is not in offline state 1297 * 0, successful 1298 */ 1299 static int 1300 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1301 { 1302 struct pci_dev *pdev = phba->pcidev; 1303 struct Scsi_Host *shost = NULL; 1304 struct lpfc_hba *phba_other = NULL; 1305 struct pci_dev *ptr = NULL; 1306 int res; 1307 1308 if (phba->cfg_enable_hba_reset != 2) 1309 return -ENOTSUPP; 1310 1311 if (!pdev) { 1312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1313 return -ENODEV; 1314 } 1315 1316 res = lpfc_check_pci_resettable(phba); 1317 if (res) 1318 return res; 1319 1320 /* Walk the list of devices on the pci_dev's bus */ 1321 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1322 /* Check port is offline */ 1323 shost = pci_get_drvdata(ptr); 1324 if (shost) { 1325 phba_other = 1326 ((struct lpfc_vport *)shost->hostdata)->phba; 1327 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1328 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1329 "8349 WWPN = 0x%02x%02x%02x%02x" 1330 "%02x%02x%02x%02x is not " 1331 "offline!\n", 1332 phba_other->wwpn[0], 1333 phba_other->wwpn[1], 1334 phba_other->wwpn[2], 1335 phba_other->wwpn[3], 1336 phba_other->wwpn[4], 1337 phba_other->wwpn[5], 1338 phba_other->wwpn[6], 1339 phba_other->wwpn[7]); 1340 return -EBUSY; 1341 } 1342 } 1343 } 1344 1345 /* Issue PCI bus reset */ 1346 res = pci_reset_bus(pdev); 1347 if (res) { 1348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1349 "8350 PCI reset bus failed: %d\n", res); 1350 } 1351 1352 return res; 1353 } 1354 1355 /** 1356 * lpfc_selective_reset - Offline then onlines the port 1357 * @phba: lpfc_hba pointer. 1358 * 1359 * Description: 1360 * If the port is configured to allow a reset then the hba is brought 1361 * offline then online. 1362 * 1363 * Notes: 1364 * Assumes any error from lpfc_do_offline() will be negative. 1365 * Do not make this function static. 1366 * 1367 * Returns: 1368 * lpfc_do_offline() return code if not zero 1369 * -EIO reset not configured or error posting the event 1370 * zero for success 1371 **/ 1372 int 1373 lpfc_selective_reset(struct lpfc_hba *phba) 1374 { 1375 struct completion online_compl; 1376 int status = 0; 1377 int rc; 1378 1379 if (!phba->cfg_enable_hba_reset) 1380 return -EACCES; 1381 1382 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1383 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1384 1385 if (status != 0) 1386 return status; 1387 } 1388 1389 init_completion(&online_compl); 1390 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1391 LPFC_EVT_ONLINE); 1392 if (rc == 0) 1393 return -ENOMEM; 1394 1395 wait_for_completion(&online_compl); 1396 1397 if (status != 0) 1398 return -EIO; 1399 1400 return 0; 1401 } 1402 1403 /** 1404 * lpfc_issue_reset - Selectively resets an adapter 1405 * @dev: class device that is converted into a Scsi_host. 1406 * @attr: device attribute, not used. 1407 * @buf: containing the string "selective". 1408 * @count: unused variable. 1409 * 1410 * Description: 1411 * If the buf contains the string "selective" then lpfc_selective_reset() 1412 * is called to perform the reset. 1413 * 1414 * Notes: 1415 * Assumes any error from lpfc_selective_reset() will be negative. 1416 * If lpfc_selective_reset() returns zero then the length of the buffer 1417 * is returned which indicates success 1418 * 1419 * Returns: 1420 * -EINVAL if the buffer does not contain the string "selective" 1421 * length of buf if lpfc-selective_reset() if the call succeeds 1422 * return value of lpfc_selective_reset() if the call fails 1423 **/ 1424 static ssize_t 1425 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1426 const char *buf, size_t count) 1427 { 1428 struct Scsi_Host *shost = class_to_shost(dev); 1429 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1430 struct lpfc_hba *phba = vport->phba; 1431 int status = -EINVAL; 1432 1433 if (!phba->cfg_enable_hba_reset) 1434 return -EACCES; 1435 1436 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1437 status = phba->lpfc_selective_reset(phba); 1438 1439 if (status == 0) 1440 return strlen(buf); 1441 else 1442 return status; 1443 } 1444 1445 /** 1446 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1447 * @phba: lpfc_hba pointer. 1448 * 1449 * Description: 1450 * SLI4 interface type-2 device to wait on the sliport status register for 1451 * the readyness after performing a firmware reset. 1452 * 1453 * Returns: 1454 * zero for success, -EPERM when port does not have privilege to perform the 1455 * reset, -EIO when port timeout from recovering from the reset. 1456 * 1457 * Note: 1458 * As the caller will interpret the return code by value, be careful in making 1459 * change or addition to return codes. 1460 **/ 1461 int 1462 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1463 { 1464 struct lpfc_register portstat_reg = {0}; 1465 int i; 1466 1467 msleep(100); 1468 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1469 &portstat_reg.word0)) 1470 return -EIO; 1471 1472 /* verify if privileged for the request operation */ 1473 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1474 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1475 return -EPERM; 1476 1477 /* wait for the SLI port firmware ready after firmware reset */ 1478 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1479 msleep(10); 1480 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1481 &portstat_reg.word0)) 1482 continue; 1483 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1484 continue; 1485 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1486 continue; 1487 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1488 continue; 1489 break; 1490 } 1491 1492 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1493 return 0; 1494 else 1495 return -EIO; 1496 } 1497 1498 /** 1499 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1500 * @phba: lpfc_hba pointer. 1501 * @opcode: The sli4 config command opcode. 1502 * 1503 * Description: 1504 * Request SLI4 interface type-2 device to perform a physical register set 1505 * access. 1506 * 1507 * Returns: 1508 * zero for success 1509 **/ 1510 static ssize_t 1511 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1512 { 1513 struct completion online_compl; 1514 struct pci_dev *pdev = phba->pcidev; 1515 uint32_t before_fc_flag; 1516 uint32_t sriov_nr_virtfn; 1517 uint32_t reg_val; 1518 int status = 0, rc = 0; 1519 int job_posted = 1, sriov_err; 1520 1521 if (!phba->cfg_enable_hba_reset) 1522 return -EACCES; 1523 1524 if ((phba->sli_rev < LPFC_SLI_REV4) || 1525 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1526 LPFC_SLI_INTF_IF_TYPE_2)) 1527 return -EPERM; 1528 1529 /* Keep state if we need to restore back */ 1530 before_fc_flag = phba->pport->fc_flag; 1531 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1532 1533 /* Disable SR-IOV virtual functions if enabled */ 1534 if (phba->cfg_sriov_nr_virtfn) { 1535 pci_disable_sriov(pdev); 1536 phba->cfg_sriov_nr_virtfn = 0; 1537 } 1538 1539 if (opcode == LPFC_FW_DUMP) 1540 phba->hba_flag |= HBA_FW_DUMP_OP; 1541 1542 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1543 1544 if (status != 0) { 1545 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1546 return status; 1547 } 1548 1549 /* wait for the device to be quiesced before firmware reset */ 1550 msleep(100); 1551 1552 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1553 LPFC_CTL_PDEV_CTL_OFFSET); 1554 1555 if (opcode == LPFC_FW_DUMP) 1556 reg_val |= LPFC_FW_DUMP_REQUEST; 1557 else if (opcode == LPFC_FW_RESET) 1558 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1559 else if (opcode == LPFC_DV_RESET) 1560 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1561 1562 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1563 LPFC_CTL_PDEV_CTL_OFFSET); 1564 /* flush */ 1565 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1566 1567 /* delay driver action following IF_TYPE_2 reset */ 1568 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1569 1570 if (rc == -EPERM) { 1571 /* no privilege for reset */ 1572 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1573 "3150 No privilege to perform the requested " 1574 "access: x%x\n", reg_val); 1575 } else if (rc == -EIO) { 1576 /* reset failed, there is nothing more we can do */ 1577 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1578 "3153 Fail to perform the requested " 1579 "access: x%x\n", reg_val); 1580 return rc; 1581 } 1582 1583 /* keep the original port state */ 1584 if (before_fc_flag & FC_OFFLINE_MODE) 1585 goto out; 1586 1587 init_completion(&online_compl); 1588 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1589 LPFC_EVT_ONLINE); 1590 if (!job_posted) 1591 goto out; 1592 1593 wait_for_completion(&online_compl); 1594 1595 out: 1596 /* in any case, restore the virtual functions enabled as before */ 1597 if (sriov_nr_virtfn) { 1598 sriov_err = 1599 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1600 if (!sriov_err) 1601 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1602 } 1603 1604 /* return proper error code */ 1605 if (!rc) { 1606 if (!job_posted) 1607 rc = -ENOMEM; 1608 else if (status) 1609 rc = -EIO; 1610 } 1611 return rc; 1612 } 1613 1614 /** 1615 * lpfc_nport_evt_cnt_show - Return the number of nport events 1616 * @dev: class device that is converted into a Scsi_host. 1617 * @attr: device attribute, not used. 1618 * @buf: on return contains the ascii number of nport events. 1619 * 1620 * Returns: size of formatted string. 1621 **/ 1622 static ssize_t 1623 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1624 char *buf) 1625 { 1626 struct Scsi_Host *shost = class_to_shost(dev); 1627 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1628 struct lpfc_hba *phba = vport->phba; 1629 1630 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1631 } 1632 1633 static int 1634 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1635 { 1636 LPFC_MBOXQ_t *mbox = NULL; 1637 unsigned long val = 0; 1638 char *pval = NULL; 1639 int rc = 0; 1640 1641 if (!strncmp("enable", buff_out, 1642 strlen("enable"))) { 1643 pval = buff_out + strlen("enable") + 1; 1644 rc = kstrtoul(pval, 0, &val); 1645 if (rc) 1646 return rc; /* Invalid number */ 1647 } else if (!strncmp("disable", buff_out, 1648 strlen("disable"))) { 1649 val = 0; 1650 } else { 1651 return -EINVAL; /* Invalid command */ 1652 } 1653 1654 switch (val) { 1655 case 0: 1656 val = 0x0; /* Disable */ 1657 break; 1658 case 2: 1659 val = 0x1; /* Enable two port trunk */ 1660 break; 1661 case 4: 1662 val = 0x2; /* Enable four port trunk */ 1663 break; 1664 default: 1665 return -EINVAL; 1666 } 1667 1668 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1669 "0070 Set trunk mode with val %ld ", val); 1670 1671 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1672 if (!mbox) 1673 return -ENOMEM; 1674 1675 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1676 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1677 12, LPFC_SLI4_MBX_EMBED); 1678 1679 bf_set(lpfc_mbx_set_trunk_mode, 1680 &mbox->u.mqe.un.set_trunk_mode, 1681 val); 1682 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1683 if (rc) 1684 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1685 "0071 Set trunk mode failed with status: %d", 1686 rc); 1687 mempool_free(mbox, phba->mbox_mem_pool); 1688 1689 return 0; 1690 } 1691 1692 /** 1693 * lpfc_board_mode_show - Return the state of the board 1694 * @dev: class device that is converted into a Scsi_host. 1695 * @attr: device attribute, not used. 1696 * @buf: on return contains the state of the adapter. 1697 * 1698 * Returns: size of formatted string. 1699 **/ 1700 static ssize_t 1701 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1702 char *buf) 1703 { 1704 struct Scsi_Host *shost = class_to_shost(dev); 1705 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1706 struct lpfc_hba *phba = vport->phba; 1707 char * state; 1708 1709 if (phba->link_state == LPFC_HBA_ERROR) 1710 state = "error"; 1711 else if (phba->link_state == LPFC_WARM_START) 1712 state = "warm start"; 1713 else if (phba->link_state == LPFC_INIT_START) 1714 state = "offline"; 1715 else 1716 state = "online"; 1717 1718 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1719 } 1720 1721 /** 1722 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1723 * @dev: class device that is converted into a Scsi_host. 1724 * @attr: device attribute, not used. 1725 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1726 * @count: unused variable. 1727 * 1728 * Returns: 1729 * -EACCES if enable hba reset not enabled 1730 * -EINVAL if the buffer does not contain a valid string (see above) 1731 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1732 * buf length greater than zero indicates success 1733 **/ 1734 static ssize_t 1735 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1736 const char *buf, size_t count) 1737 { 1738 struct Scsi_Host *shost = class_to_shost(dev); 1739 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1740 struct lpfc_hba *phba = vport->phba; 1741 struct completion online_compl; 1742 char *board_mode_str = NULL; 1743 int status = 0; 1744 int rc; 1745 1746 if (!phba->cfg_enable_hba_reset) { 1747 status = -EACCES; 1748 goto board_mode_out; 1749 } 1750 1751 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1752 "3050 lpfc_board_mode set to %s\n", buf); 1753 1754 init_completion(&online_compl); 1755 1756 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1757 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1758 LPFC_EVT_ONLINE); 1759 if (rc == 0) { 1760 status = -ENOMEM; 1761 goto board_mode_out; 1762 } 1763 wait_for_completion(&online_compl); 1764 if (status) 1765 status = -EIO; 1766 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1767 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1768 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1769 if (phba->sli_rev == LPFC_SLI_REV4) 1770 status = -EINVAL; 1771 else 1772 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1773 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1774 if (phba->sli_rev == LPFC_SLI_REV4) 1775 status = -EINVAL; 1776 else 1777 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1778 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1779 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1780 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1781 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1782 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1783 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1784 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1785 == 0) 1786 status = lpfc_reset_pci_bus(phba); 1787 else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) 1788 lpfc_issue_hb_tmo(phba); 1789 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1790 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1791 else 1792 status = -EINVAL; 1793 1794 board_mode_out: 1795 if (!status) 1796 return strlen(buf); 1797 else { 1798 board_mode_str = strchr(buf, '\n'); 1799 if (board_mode_str) 1800 *board_mode_str = '\0'; 1801 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1802 "3097 Failed \"%s\", status(%d), " 1803 "fc_flag(x%x)\n", 1804 buf, status, phba->pport->fc_flag); 1805 return status; 1806 } 1807 } 1808 1809 /** 1810 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1811 * @phba: pointer to the adapter structure. 1812 * @mxri: max xri count. 1813 * @axri: available xri count. 1814 * @mrpi: max rpi count. 1815 * @arpi: available rpi count. 1816 * @mvpi: max vpi count. 1817 * @avpi: available vpi count. 1818 * 1819 * Description: 1820 * If an integer pointer for an count is not null then the value for the 1821 * count is returned. 1822 * 1823 * Returns: 1824 * zero on error 1825 * one for success 1826 **/ 1827 static int 1828 lpfc_get_hba_info(struct lpfc_hba *phba, 1829 uint32_t *mxri, uint32_t *axri, 1830 uint32_t *mrpi, uint32_t *arpi, 1831 uint32_t *mvpi, uint32_t *avpi) 1832 { 1833 struct lpfc_mbx_read_config *rd_config; 1834 LPFC_MBOXQ_t *pmboxq; 1835 MAILBOX_t *pmb; 1836 int rc = 0; 1837 uint32_t max_vpi; 1838 1839 /* 1840 * prevent udev from issuing mailbox commands until the port is 1841 * configured. 1842 */ 1843 if (phba->link_state < LPFC_LINK_DOWN || 1844 !phba->mbox_mem_pool || 1845 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1846 return 0; 1847 1848 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1849 return 0; 1850 1851 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1852 if (!pmboxq) 1853 return 0; 1854 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1855 1856 pmb = &pmboxq->u.mb; 1857 pmb->mbxCommand = MBX_READ_CONFIG; 1858 pmb->mbxOwner = OWN_HOST; 1859 pmboxq->ctx_buf = NULL; 1860 1861 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1862 rc = MBX_NOT_FINISHED; 1863 else 1864 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1865 1866 if (rc != MBX_SUCCESS) { 1867 if (rc != MBX_TIMEOUT) 1868 mempool_free(pmboxq, phba->mbox_mem_pool); 1869 return 0; 1870 } 1871 1872 if (phba->sli_rev == LPFC_SLI_REV4) { 1873 rd_config = &pmboxq->u.mqe.un.rd_config; 1874 if (mrpi) 1875 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1876 if (arpi) 1877 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1878 phba->sli4_hba.max_cfg_param.rpi_used; 1879 if (mxri) 1880 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1881 if (axri) 1882 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1883 phba->sli4_hba.max_cfg_param.xri_used; 1884 1885 /* Account for differences with SLI-3. Get vpi count from 1886 * mailbox data and subtract one for max vpi value. 1887 */ 1888 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1889 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1890 1891 /* Limit the max we support */ 1892 if (max_vpi > LPFC_MAX_VPI) 1893 max_vpi = LPFC_MAX_VPI; 1894 if (mvpi) 1895 *mvpi = max_vpi; 1896 if (avpi) 1897 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1898 } else { 1899 if (mrpi) 1900 *mrpi = pmb->un.varRdConfig.max_rpi; 1901 if (arpi) 1902 *arpi = pmb->un.varRdConfig.avail_rpi; 1903 if (mxri) 1904 *mxri = pmb->un.varRdConfig.max_xri; 1905 if (axri) 1906 *axri = pmb->un.varRdConfig.avail_xri; 1907 if (mvpi) 1908 *mvpi = pmb->un.varRdConfig.max_vpi; 1909 if (avpi) { 1910 /* avail_vpi is only valid if link is up and ready */ 1911 if (phba->link_state == LPFC_HBA_READY) 1912 *avpi = pmb->un.varRdConfig.avail_vpi; 1913 else 1914 *avpi = pmb->un.varRdConfig.max_vpi; 1915 } 1916 } 1917 1918 mempool_free(pmboxq, phba->mbox_mem_pool); 1919 return 1; 1920 } 1921 1922 /** 1923 * lpfc_max_rpi_show - Return maximum rpi 1924 * @dev: class device that is converted into a Scsi_host. 1925 * @attr: device attribute, not used. 1926 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1927 * 1928 * Description: 1929 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1930 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1931 * to "Unknown" and the buffer length is returned, therefore the caller 1932 * must check for "Unknown" in the buffer to detect a failure. 1933 * 1934 * Returns: size of formatted string. 1935 **/ 1936 static ssize_t 1937 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1938 char *buf) 1939 { 1940 struct Scsi_Host *shost = class_to_shost(dev); 1941 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1942 struct lpfc_hba *phba = vport->phba; 1943 uint32_t cnt; 1944 1945 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1946 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 1947 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1948 } 1949 1950 /** 1951 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1952 * @dev: class device that is converted into a Scsi_host. 1953 * @attr: device attribute, not used. 1954 * @buf: containing the used rpi count in decimal or "Unknown". 1955 * 1956 * Description: 1957 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1958 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1959 * to "Unknown" and the buffer length is returned, therefore the caller 1960 * must check for "Unknown" in the buffer to detect a failure. 1961 * 1962 * Returns: size of formatted string. 1963 **/ 1964 static ssize_t 1965 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1966 char *buf) 1967 { 1968 struct Scsi_Host *shost = class_to_shost(dev); 1969 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1970 struct lpfc_hba *phba = vport->phba; 1971 uint32_t cnt, acnt; 1972 1973 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1974 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1975 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1976 } 1977 1978 /** 1979 * lpfc_max_xri_show - Return maximum xri 1980 * @dev: class device that is converted into a Scsi_host. 1981 * @attr: device attribute, not used. 1982 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1983 * 1984 * Description: 1985 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1986 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1987 * to "Unknown" and the buffer length is returned, therefore the caller 1988 * must check for "Unknown" in the buffer to detect a failure. 1989 * 1990 * Returns: size of formatted string. 1991 **/ 1992 static ssize_t 1993 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 1994 char *buf) 1995 { 1996 struct Scsi_Host *shost = class_to_shost(dev); 1997 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1998 struct lpfc_hba *phba = vport->phba; 1999 uint32_t cnt; 2000 2001 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2002 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2003 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2004 } 2005 2006 /** 2007 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2008 * @dev: class device that is converted into a Scsi_host. 2009 * @attr: device attribute, not used. 2010 * @buf: on return contains the used xri count in decimal or "Unknown". 2011 * 2012 * Description: 2013 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2014 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2015 * to "Unknown" and the buffer length is returned, therefore the caller 2016 * must check for "Unknown" in the buffer to detect a failure. 2017 * 2018 * Returns: size of formatted string. 2019 **/ 2020 static ssize_t 2021 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2022 char *buf) 2023 { 2024 struct Scsi_Host *shost = class_to_shost(dev); 2025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2026 struct lpfc_hba *phba = vport->phba; 2027 uint32_t cnt, acnt; 2028 2029 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2030 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2031 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2032 } 2033 2034 /** 2035 * lpfc_max_vpi_show - Return maximum vpi 2036 * @dev: class device that is converted into a Scsi_host. 2037 * @attr: device attribute, not used. 2038 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2039 * 2040 * Description: 2041 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2042 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2043 * to "Unknown" and the buffer length is returned, therefore the caller 2044 * must check for "Unknown" in the buffer to detect a failure. 2045 * 2046 * Returns: size of formatted string. 2047 **/ 2048 static ssize_t 2049 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2050 char *buf) 2051 { 2052 struct Scsi_Host *shost = class_to_shost(dev); 2053 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2054 struct lpfc_hba *phba = vport->phba; 2055 uint32_t cnt; 2056 2057 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2058 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2059 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2060 } 2061 2062 /** 2063 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2064 * @dev: class device that is converted into a Scsi_host. 2065 * @attr: device attribute, not used. 2066 * @buf: on return contains the used vpi count in decimal or "Unknown". 2067 * 2068 * Description: 2069 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2070 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2071 * to "Unknown" and the buffer length is returned, therefore the caller 2072 * must check for "Unknown" in the buffer to detect a failure. 2073 * 2074 * Returns: size of formatted string. 2075 **/ 2076 static ssize_t 2077 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2078 char *buf) 2079 { 2080 struct Scsi_Host *shost = class_to_shost(dev); 2081 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2082 struct lpfc_hba *phba = vport->phba; 2083 uint32_t cnt, acnt; 2084 2085 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2086 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2087 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2088 } 2089 2090 /** 2091 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2092 * @dev: class device that is converted into a Scsi_host. 2093 * @attr: device attribute, not used. 2094 * @buf: text that must be interpreted to determine if npiv is supported. 2095 * 2096 * Description: 2097 * Buffer will contain text indicating npiv is not suppoerted on the port, 2098 * the port is an NPIV physical port, or it is an npiv virtual port with 2099 * the id of the vport. 2100 * 2101 * Returns: size of formatted string. 2102 **/ 2103 static ssize_t 2104 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2105 char *buf) 2106 { 2107 struct Scsi_Host *shost = class_to_shost(dev); 2108 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2109 struct lpfc_hba *phba = vport->phba; 2110 2111 if (!(phba->max_vpi)) 2112 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2113 if (vport->port_type == LPFC_PHYSICAL_PORT) 2114 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2115 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2116 } 2117 2118 /** 2119 * lpfc_poll_show - Return text about poll support for the adapter 2120 * @dev: class device that is converted into a Scsi_host. 2121 * @attr: device attribute, not used. 2122 * @buf: on return contains the cfg_poll in hex. 2123 * 2124 * Notes: 2125 * cfg_poll should be a lpfc_polling_flags type. 2126 * 2127 * Returns: size of formatted string. 2128 **/ 2129 static ssize_t 2130 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2131 char *buf) 2132 { 2133 struct Scsi_Host *shost = class_to_shost(dev); 2134 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2135 struct lpfc_hba *phba = vport->phba; 2136 2137 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2138 } 2139 2140 /** 2141 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2142 * @dev: class device that is converted into a Scsi_host. 2143 * @attr: device attribute, not used. 2144 * @buf: one or more lpfc_polling_flags values. 2145 * @count: not used. 2146 * 2147 * Notes: 2148 * buf contents converted to integer and checked for a valid value. 2149 * 2150 * Returns: 2151 * -EINVAL if the buffer connot be converted or is out of range 2152 * length of the buf on success 2153 **/ 2154 static ssize_t 2155 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2156 const char *buf, size_t count) 2157 { 2158 struct Scsi_Host *shost = class_to_shost(dev); 2159 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2160 struct lpfc_hba *phba = vport->phba; 2161 uint32_t creg_val; 2162 uint32_t old_val; 2163 int val=0; 2164 2165 if (!isdigit(buf[0])) 2166 return -EINVAL; 2167 2168 if (sscanf(buf, "%i", &val) != 1) 2169 return -EINVAL; 2170 2171 if ((val & 0x3) != val) 2172 return -EINVAL; 2173 2174 if (phba->sli_rev == LPFC_SLI_REV4) 2175 val = 0; 2176 2177 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2178 "3051 lpfc_poll changed from %d to %d\n", 2179 phba->cfg_poll, val); 2180 2181 spin_lock_irq(&phba->hbalock); 2182 2183 old_val = phba->cfg_poll; 2184 2185 if (val & ENABLE_FCP_RING_POLLING) { 2186 if ((val & DISABLE_FCP_RING_INT) && 2187 !(old_val & DISABLE_FCP_RING_INT)) { 2188 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2189 spin_unlock_irq(&phba->hbalock); 2190 return -EINVAL; 2191 } 2192 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2193 writel(creg_val, phba->HCregaddr); 2194 readl(phba->HCregaddr); /* flush */ 2195 2196 lpfc_poll_start_timer(phba); 2197 } 2198 } else if (val != 0x0) { 2199 spin_unlock_irq(&phba->hbalock); 2200 return -EINVAL; 2201 } 2202 2203 if (!(val & DISABLE_FCP_RING_INT) && 2204 (old_val & DISABLE_FCP_RING_INT)) 2205 { 2206 spin_unlock_irq(&phba->hbalock); 2207 del_timer(&phba->fcp_poll_timer); 2208 spin_lock_irq(&phba->hbalock); 2209 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2210 spin_unlock_irq(&phba->hbalock); 2211 return -EINVAL; 2212 } 2213 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2214 writel(creg_val, phba->HCregaddr); 2215 readl(phba->HCregaddr); /* flush */ 2216 } 2217 2218 phba->cfg_poll = val; 2219 2220 spin_unlock_irq(&phba->hbalock); 2221 2222 return strlen(buf); 2223 } 2224 2225 /** 2226 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2227 * @dev: class converted to a Scsi_host structure. 2228 * @attr: device attribute, not used. 2229 * @buf: on return contains the formatted support level. 2230 * 2231 * Description: 2232 * Returns the maximum number of virtual functions a physical function can 2233 * support, 0 will be returned if called on virtual function. 2234 * 2235 * Returns: size of formatted string. 2236 **/ 2237 static ssize_t 2238 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2239 struct device_attribute *attr, 2240 char *buf) 2241 { 2242 struct Scsi_Host *shost = class_to_shost(dev); 2243 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2244 struct lpfc_hba *phba = vport->phba; 2245 uint16_t max_nr_virtfn; 2246 2247 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2248 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2249 } 2250 2251 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2252 { 2253 return val >= min && val <= max; 2254 } 2255 2256 /** 2257 * lpfc_enable_bbcr_set: Sets an attribute value. 2258 * @phba: pointer the the adapter structure. 2259 * @val: integer attribute value. 2260 * 2261 * Description: 2262 * Validates the min and max values then sets the 2263 * adapter config field if in the valid range. prints error message 2264 * and does not set the parameter if invalid. 2265 * 2266 * Returns: 2267 * zero on success 2268 * -EINVAL if val is invalid 2269 */ 2270 static ssize_t 2271 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2272 { 2273 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2275 "3068 lpfc_enable_bbcr changed from %d to " 2276 "%d\n", phba->cfg_enable_bbcr, val); 2277 phba->cfg_enable_bbcr = val; 2278 return 0; 2279 } 2280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2281 "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " 2282 "1\n", val); 2283 return -EINVAL; 2284 } 2285 2286 /* 2287 * lpfc_param_show - Return a cfg attribute value in decimal 2288 * 2289 * Description: 2290 * Macro that given an attr e.g. hba_queue_depth expands 2291 * into a function with the name lpfc_hba_queue_depth_show. 2292 * 2293 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2294 * @dev: class device that is converted into a Scsi_host. 2295 * @attr: device attribute, not used. 2296 * @buf: on return contains the attribute value in decimal. 2297 * 2298 * Returns: size of formatted string. 2299 **/ 2300 #define lpfc_param_show(attr) \ 2301 static ssize_t \ 2302 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2303 char *buf) \ 2304 { \ 2305 struct Scsi_Host *shost = class_to_shost(dev);\ 2306 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2307 struct lpfc_hba *phba = vport->phba;\ 2308 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2309 phba->cfg_##attr);\ 2310 } 2311 2312 /* 2313 * lpfc_param_hex_show - Return a cfg attribute value in hex 2314 * 2315 * Description: 2316 * Macro that given an attr e.g. hba_queue_depth expands 2317 * into a function with the name lpfc_hba_queue_depth_show 2318 * 2319 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2320 * @dev: class device that is converted into a Scsi_host. 2321 * @attr: device attribute, not used. 2322 * @buf: on return contains the attribute value in hexadecimal. 2323 * 2324 * Returns: size of formatted string. 2325 **/ 2326 #define lpfc_param_hex_show(attr) \ 2327 static ssize_t \ 2328 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2329 char *buf) \ 2330 { \ 2331 struct Scsi_Host *shost = class_to_shost(dev);\ 2332 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2333 struct lpfc_hba *phba = vport->phba;\ 2334 uint val = 0;\ 2335 val = phba->cfg_##attr;\ 2336 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2337 phba->cfg_##attr);\ 2338 } 2339 2340 /* 2341 * lpfc_param_init - Initializes a cfg attribute 2342 * 2343 * Description: 2344 * Macro that given an attr e.g. hba_queue_depth expands 2345 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2346 * takes a default argument, a minimum and maximum argument. 2347 * 2348 * lpfc_##attr##_init: Initializes an attribute. 2349 * @phba: pointer the the adapter structure. 2350 * @val: integer attribute value. 2351 * 2352 * Validates the min and max values then sets the adapter config field 2353 * accordingly, or uses the default if out of range and prints an error message. 2354 * 2355 * Returns: 2356 * zero on success 2357 * -EINVAL if default used 2358 **/ 2359 #define lpfc_param_init(attr, default, minval, maxval) \ 2360 static int \ 2361 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2362 { \ 2363 if (lpfc_rangecheck(val, minval, maxval)) {\ 2364 phba->cfg_##attr = val;\ 2365 return 0;\ 2366 }\ 2367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2368 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2369 "allowed range is ["#minval", "#maxval"]\n", val); \ 2370 phba->cfg_##attr = default;\ 2371 return -EINVAL;\ 2372 } 2373 2374 /* 2375 * lpfc_param_set - Set a cfg attribute value 2376 * 2377 * Description: 2378 * Macro that given an attr e.g. hba_queue_depth expands 2379 * into a function with the name lpfc_hba_queue_depth_set 2380 * 2381 * lpfc_##attr##_set: Sets an attribute value. 2382 * @phba: pointer the the adapter structure. 2383 * @val: integer attribute value. 2384 * 2385 * Description: 2386 * Validates the min and max values then sets the 2387 * adapter config field if in the valid range. prints error message 2388 * and does not set the parameter if invalid. 2389 * 2390 * Returns: 2391 * zero on success 2392 * -EINVAL if val is invalid 2393 **/ 2394 #define lpfc_param_set(attr, default, minval, maxval) \ 2395 static int \ 2396 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2397 { \ 2398 if (lpfc_rangecheck(val, minval, maxval)) {\ 2399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2400 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2401 phba->cfg_##attr, val); \ 2402 phba->cfg_##attr = val;\ 2403 return 0;\ 2404 }\ 2405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2406 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2407 "allowed range is ["#minval", "#maxval"]\n", val); \ 2408 return -EINVAL;\ 2409 } 2410 2411 /* 2412 * lpfc_param_store - Set a vport attribute value 2413 * 2414 * Description: 2415 * Macro that given an attr e.g. hba_queue_depth expands 2416 * into a function with the name lpfc_hba_queue_depth_store. 2417 * 2418 * lpfc_##attr##_store: Set an sttribute value. 2419 * @dev: class device that is converted into a Scsi_host. 2420 * @attr: device attribute, not used. 2421 * @buf: contains the attribute value in ascii. 2422 * @count: not used. 2423 * 2424 * Description: 2425 * Convert the ascii text number to an integer, then 2426 * use the lpfc_##attr##_set function to set the value. 2427 * 2428 * Returns: 2429 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2430 * length of buffer upon success. 2431 **/ 2432 #define lpfc_param_store(attr) \ 2433 static ssize_t \ 2434 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2435 const char *buf, size_t count) \ 2436 { \ 2437 struct Scsi_Host *shost = class_to_shost(dev);\ 2438 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2439 struct lpfc_hba *phba = vport->phba;\ 2440 uint val = 0;\ 2441 if (!isdigit(buf[0]))\ 2442 return -EINVAL;\ 2443 if (sscanf(buf, "%i", &val) != 1)\ 2444 return -EINVAL;\ 2445 if (lpfc_##attr##_set(phba, val) == 0) \ 2446 return strlen(buf);\ 2447 else \ 2448 return -EINVAL;\ 2449 } 2450 2451 /* 2452 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2453 * 2454 * Description: 2455 * Macro that given an attr e.g. hba_queue_depth expands 2456 * into a function with the name lpfc_hba_queue_depth_show 2457 * 2458 * lpfc_##attr##_show: prints the attribute value in decimal. 2459 * @dev: class device that is converted into a Scsi_host. 2460 * @attr: device attribute, not used. 2461 * @buf: on return contains the attribute value in decimal. 2462 * 2463 * Returns: length of formatted string. 2464 **/ 2465 #define lpfc_vport_param_show(attr) \ 2466 static ssize_t \ 2467 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2468 char *buf) \ 2469 { \ 2470 struct Scsi_Host *shost = class_to_shost(dev);\ 2471 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2472 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2473 } 2474 2475 /* 2476 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2477 * 2478 * Description: 2479 * Macro that given an attr e.g. 2480 * hba_queue_depth expands into a function with the name 2481 * lpfc_hba_queue_depth_show 2482 * 2483 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2484 * @dev: class device that is converted into a Scsi_host. 2485 * @attr: device attribute, not used. 2486 * @buf: on return contains the attribute value in hexadecimal. 2487 * 2488 * Returns: length of formatted string. 2489 **/ 2490 #define lpfc_vport_param_hex_show(attr) \ 2491 static ssize_t \ 2492 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2493 char *buf) \ 2494 { \ 2495 struct Scsi_Host *shost = class_to_shost(dev);\ 2496 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2497 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2498 } 2499 2500 /* 2501 * lpfc_vport_param_init - Initialize a vport cfg attribute 2502 * 2503 * Description: 2504 * Macro that given an attr e.g. hba_queue_depth expands 2505 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2506 * takes a default argument, a minimum and maximum argument. 2507 * 2508 * lpfc_##attr##_init: validates the min and max values then sets the 2509 * adapter config field accordingly, or uses the default if out of range 2510 * and prints an error message. 2511 * @phba: pointer the the adapter structure. 2512 * @val: integer attribute value. 2513 * 2514 * Returns: 2515 * zero on success 2516 * -EINVAL if default used 2517 **/ 2518 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2519 static int \ 2520 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2521 { \ 2522 if (lpfc_rangecheck(val, minval, maxval)) {\ 2523 vport->cfg_##attr = val;\ 2524 return 0;\ 2525 }\ 2526 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2527 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2528 "allowed range is ["#minval", "#maxval"]\n", val); \ 2529 vport->cfg_##attr = default;\ 2530 return -EINVAL;\ 2531 } 2532 2533 /* 2534 * lpfc_vport_param_set - Set a vport cfg attribute 2535 * 2536 * Description: 2537 * Macro that given an attr e.g. hba_queue_depth expands 2538 * into a function with the name lpfc_hba_queue_depth_set 2539 * 2540 * lpfc_##attr##_set: validates the min and max values then sets the 2541 * adapter config field if in the valid range. prints error message 2542 * and does not set the parameter if invalid. 2543 * @phba: pointer the the adapter structure. 2544 * @val: integer attribute value. 2545 * 2546 * Returns: 2547 * zero on success 2548 * -EINVAL if val is invalid 2549 **/ 2550 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2551 static int \ 2552 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2553 { \ 2554 if (lpfc_rangecheck(val, minval, maxval)) {\ 2555 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2556 "3053 lpfc_" #attr \ 2557 " changed from %d (x%x) to %d (x%x)\n", \ 2558 vport->cfg_##attr, vport->cfg_##attr, \ 2559 val, val); \ 2560 vport->cfg_##attr = val;\ 2561 return 0;\ 2562 }\ 2563 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2564 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2565 "allowed range is ["#minval", "#maxval"]\n", val); \ 2566 return -EINVAL;\ 2567 } 2568 2569 /* 2570 * lpfc_vport_param_store - Set a vport attribute 2571 * 2572 * Description: 2573 * Macro that given an attr e.g. hba_queue_depth 2574 * expands into a function with the name lpfc_hba_queue_depth_store 2575 * 2576 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2577 * use the lpfc_##attr##_set function to set the value. 2578 * @cdev: class device that is converted into a Scsi_host. 2579 * @buf: contains the attribute value in decimal. 2580 * @count: not used. 2581 * 2582 * Returns: 2583 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2584 * length of buffer upon success. 2585 **/ 2586 #define lpfc_vport_param_store(attr) \ 2587 static ssize_t \ 2588 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2589 const char *buf, size_t count) \ 2590 { \ 2591 struct Scsi_Host *shost = class_to_shost(dev);\ 2592 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2593 uint val = 0;\ 2594 if (!isdigit(buf[0]))\ 2595 return -EINVAL;\ 2596 if (sscanf(buf, "%i", &val) != 1)\ 2597 return -EINVAL;\ 2598 if (lpfc_##attr##_set(vport, val) == 0) \ 2599 return strlen(buf);\ 2600 else \ 2601 return -EINVAL;\ 2602 } 2603 2604 2605 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2606 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2607 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2608 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2609 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2610 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2611 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2612 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2613 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2614 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2615 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2616 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2617 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2618 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2619 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2620 lpfc_link_state_store); 2621 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2622 lpfc_option_rom_version_show, NULL); 2623 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2624 lpfc_num_discovered_ports_show, NULL); 2625 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2626 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2627 static DEVICE_ATTR_RO(lpfc_drvr_version); 2628 static DEVICE_ATTR_RO(lpfc_enable_fip); 2629 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2630 lpfc_board_mode_show, lpfc_board_mode_store); 2631 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2632 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2633 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2634 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2635 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2636 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2637 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2638 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2639 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2640 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2641 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2642 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2643 NULL); 2644 2645 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2646 #define WWN_SZ 8 2647 /** 2648 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2649 * @buf: WWN string. 2650 * @cnt: Length of string. 2651 * @wwn: Array to receive converted wwn value. 2652 * 2653 * Returns: 2654 * -EINVAL if the buffer does not contain a valid wwn 2655 * 0 success 2656 **/ 2657 static size_t 2658 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2659 { 2660 unsigned int i, j; 2661 2662 /* Count may include a LF at end of string */ 2663 if (buf[cnt-1] == '\n') 2664 cnt--; 2665 2666 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2667 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2668 return -EINVAL; 2669 2670 memset(wwn, 0, WWN_SZ); 2671 2672 /* Validate and store the new name */ 2673 for (i = 0, j = 0; i < 16; i++) { 2674 if ((*buf >= 'a') && (*buf <= 'f')) 2675 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2676 else if ((*buf >= 'A') && (*buf <= 'F')) 2677 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2678 else if ((*buf >= '0') && (*buf <= '9')) 2679 j = ((j << 4) | (*buf++ - '0')); 2680 else 2681 return -EINVAL; 2682 if (i % 2) { 2683 wwn[i/2] = j & 0xff; 2684 j = 0; 2685 } 2686 } 2687 return 0; 2688 } 2689 /** 2690 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2691 * @dev: class device that is converted into a Scsi_host. 2692 * @attr: device attribute, not used. 2693 * @buf: containing the string lpfc_soft_wwn_key. 2694 * @count: must be size of lpfc_soft_wwn_key. 2695 * 2696 * Returns: 2697 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2698 * length of buf indicates success 2699 **/ 2700 static ssize_t 2701 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2702 const char *buf, size_t count) 2703 { 2704 struct Scsi_Host *shost = class_to_shost(dev); 2705 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2706 struct lpfc_hba *phba = vport->phba; 2707 unsigned int cnt = count; 2708 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2709 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2710 2711 /* 2712 * We're doing a simple sanity check for soft_wwpn setting. 2713 * We require that the user write a specific key to enable 2714 * the soft_wwpn attribute to be settable. Once the attribute 2715 * is written, the enable key resets. If further updates are 2716 * desired, the key must be written again to re-enable the 2717 * attribute. 2718 * 2719 * The "key" is not secret - it is a hardcoded string shown 2720 * here. The intent is to protect against the random user or 2721 * application that is just writing attributes. 2722 */ 2723 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2725 "0051 lpfc soft wwpn can not be enabled: " 2726 "fawwpn is enabled\n"); 2727 return -EINVAL; 2728 } 2729 2730 /* count may include a LF at end of string */ 2731 if (buf[cnt-1] == '\n') 2732 cnt--; 2733 2734 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2735 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2736 return -EINVAL; 2737 2738 phba->soft_wwn_enable = 1; 2739 2740 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2741 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2742 phba->brd_no); 2743 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2744 " The soft_wwpn feature is not supported by Broadcom."); 2745 2746 return count; 2747 } 2748 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2749 2750 /** 2751 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2752 * @dev: class device that is converted into a Scsi_host. 2753 * @attr: device attribute, not used. 2754 * @buf: on return contains the wwpn in hexadecimal. 2755 * 2756 * Returns: size of formatted string. 2757 **/ 2758 static ssize_t 2759 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2760 char *buf) 2761 { 2762 struct Scsi_Host *shost = class_to_shost(dev); 2763 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2764 struct lpfc_hba *phba = vport->phba; 2765 2766 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2767 (unsigned long long)phba->cfg_soft_wwpn); 2768 } 2769 2770 /** 2771 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2772 * @dev: class device that is converted into a Scsi_host. 2773 * @attr: device attribute, not used. 2774 * @buf: contains the wwpn in hexadecimal. 2775 * @count: number of wwpn bytes in buf 2776 * 2777 * Returns: 2778 * -EACCES hba reset not enabled, adapter over temp 2779 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2780 * -EIO error taking adapter offline or online 2781 * value of count on success 2782 **/ 2783 static ssize_t 2784 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2785 const char *buf, size_t count) 2786 { 2787 struct Scsi_Host *shost = class_to_shost(dev); 2788 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2789 struct lpfc_hba *phba = vport->phba; 2790 struct completion online_compl; 2791 int stat1 = 0, stat2 = 0; 2792 unsigned int cnt = count; 2793 u8 wwpn[WWN_SZ]; 2794 int rc; 2795 2796 if (!phba->cfg_enable_hba_reset) 2797 return -EACCES; 2798 spin_lock_irq(&phba->hbalock); 2799 if (phba->over_temp_state == HBA_OVER_TEMP) { 2800 spin_unlock_irq(&phba->hbalock); 2801 return -EACCES; 2802 } 2803 spin_unlock_irq(&phba->hbalock); 2804 /* count may include a LF at end of string */ 2805 if (buf[cnt-1] == '\n') 2806 cnt--; 2807 2808 if (!phba->soft_wwn_enable) 2809 return -EINVAL; 2810 2811 /* lock setting wwpn, wwnn down */ 2812 phba->soft_wwn_enable = 0; 2813 2814 rc = lpfc_wwn_set(buf, cnt, wwpn); 2815 if (rc) { 2816 /* not able to set wwpn, unlock it */ 2817 phba->soft_wwn_enable = 1; 2818 return rc; 2819 } 2820 2821 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2822 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2823 if (phba->cfg_soft_wwnn) 2824 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2825 2826 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2827 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2828 2829 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2830 if (stat1) 2831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2832 "0463 lpfc_soft_wwpn attribute set failed to " 2833 "reinit adapter - %d\n", stat1); 2834 init_completion(&online_compl); 2835 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2836 LPFC_EVT_ONLINE); 2837 if (rc == 0) 2838 return -ENOMEM; 2839 2840 wait_for_completion(&online_compl); 2841 if (stat2) 2842 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2843 "0464 lpfc_soft_wwpn attribute set failed to " 2844 "reinit adapter - %d\n", stat2); 2845 return (stat1 || stat2) ? -EIO : count; 2846 } 2847 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2848 2849 /** 2850 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2851 * @dev: class device that is converted into a Scsi_host. 2852 * @attr: device attribute, not used. 2853 * @buf: on return contains the wwnn in hexadecimal. 2854 * 2855 * Returns: size of formatted string. 2856 **/ 2857 static ssize_t 2858 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2859 char *buf) 2860 { 2861 struct Scsi_Host *shost = class_to_shost(dev); 2862 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2863 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2864 (unsigned long long)phba->cfg_soft_wwnn); 2865 } 2866 2867 /** 2868 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2869 * @dev: class device that is converted into a Scsi_host. 2870 * @attr: device attribute, not used. 2871 * @buf: contains the ww node name in hexadecimal. 2872 * @count: number of wwnn bytes in buf. 2873 * 2874 * Returns: 2875 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2876 * value of count on success 2877 **/ 2878 static ssize_t 2879 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2880 const char *buf, size_t count) 2881 { 2882 struct Scsi_Host *shost = class_to_shost(dev); 2883 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2884 unsigned int cnt = count; 2885 u8 wwnn[WWN_SZ]; 2886 int rc; 2887 2888 /* count may include a LF at end of string */ 2889 if (buf[cnt-1] == '\n') 2890 cnt--; 2891 2892 if (!phba->soft_wwn_enable) 2893 return -EINVAL; 2894 2895 rc = lpfc_wwn_set(buf, cnt, wwnn); 2896 if (rc) { 2897 /* Allow wwnn to be set many times, as long as the enable 2898 * is set. However, once the wwpn is set, everything locks. 2899 */ 2900 return rc; 2901 } 2902 2903 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2904 2905 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2906 "lpfc%d: soft_wwnn set. Value will take effect upon " 2907 "setting of the soft_wwpn\n", phba->brd_no); 2908 2909 return count; 2910 } 2911 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2912 2913 /** 2914 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2915 * Optimized Access Storage (OAS) operations. 2916 * @dev: class device that is converted into a Scsi_host. 2917 * @attr: device attribute, not used. 2918 * @buf: buffer for passing information. 2919 * 2920 * Returns: 2921 * value of count 2922 **/ 2923 static ssize_t 2924 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2925 char *buf) 2926 { 2927 struct Scsi_Host *shost = class_to_shost(dev); 2928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2929 2930 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2931 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2932 } 2933 2934 /** 2935 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2936 * Optimized Access Storage (OAS) operations. 2937 * @dev: class device that is converted into a Scsi_host. 2938 * @attr: device attribute, not used. 2939 * @buf: buffer for passing information. 2940 * @count: Size of the data buffer. 2941 * 2942 * Returns: 2943 * -EINVAL count is invalid, invalid wwpn byte invalid 2944 * -EPERM oas is not supported by hba 2945 * value of count on success 2946 **/ 2947 static ssize_t 2948 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2949 const char *buf, size_t count) 2950 { 2951 struct Scsi_Host *shost = class_to_shost(dev); 2952 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2953 unsigned int cnt = count; 2954 uint8_t wwpn[WWN_SZ]; 2955 int rc; 2956 2957 if (!phba->cfg_fof) 2958 return -EPERM; 2959 2960 /* count may include a LF at end of string */ 2961 if (buf[cnt-1] == '\n') 2962 cnt--; 2963 2964 rc = lpfc_wwn_set(buf, cnt, wwpn); 2965 if (rc) 2966 return rc; 2967 2968 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2969 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2970 if (wwn_to_u64(wwpn) == 0) 2971 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2972 else 2973 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2974 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2975 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2976 return count; 2977 } 2978 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2979 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2980 2981 /** 2982 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2983 * Optimized Access Storage (OAS) operations. 2984 * @dev: class device that is converted into a Scsi_host. 2985 * @attr: device attribute, not used. 2986 * @buf: buffer for passing information. 2987 * 2988 * Returns: 2989 * value of count 2990 **/ 2991 static ssize_t 2992 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 2993 char *buf) 2994 { 2995 struct Scsi_Host *shost = class_to_shost(dev); 2996 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2997 2998 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 2999 } 3000 3001 /** 3002 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3003 * Optimized Access Storage (OAS) operations. 3004 * @dev: class device that is converted into a Scsi_host. 3005 * @attr: device attribute, not used. 3006 * @buf: buffer for passing information. 3007 * @count: Size of the data buffer. 3008 * 3009 * Returns: 3010 * -EINVAL count is invalid, invalid wwpn byte invalid 3011 * -EPERM oas is not supported by hba 3012 * value of count on success 3013 **/ 3014 static ssize_t 3015 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3016 const char *buf, size_t count) 3017 { 3018 struct Scsi_Host *shost = class_to_shost(dev); 3019 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3020 unsigned int cnt = count; 3021 unsigned long val; 3022 int ret; 3023 3024 if (!phba->cfg_fof) 3025 return -EPERM; 3026 3027 /* count may include a LF at end of string */ 3028 if (buf[cnt-1] == '\n') 3029 cnt--; 3030 3031 ret = kstrtoul(buf, 0, &val); 3032 if (ret || (val > 0x7f)) 3033 return -EINVAL; 3034 3035 if (val) 3036 phba->cfg_oas_priority = (uint8_t)val; 3037 else 3038 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3039 return count; 3040 } 3041 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3042 lpfc_oas_priority_show, lpfc_oas_priority_store); 3043 3044 /** 3045 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3046 * for Optimized Access Storage (OAS) operations. 3047 * @dev: class device that is converted into a Scsi_host. 3048 * @attr: device attribute, not used. 3049 * @buf: buffer for passing information. 3050 * 3051 * Returns: 3052 * value of count on success 3053 **/ 3054 static ssize_t 3055 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3056 char *buf) 3057 { 3058 struct Scsi_Host *shost = class_to_shost(dev); 3059 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3060 3061 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3062 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3063 } 3064 3065 /** 3066 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3067 * for Optimized Access Storage (OAS) operations. 3068 * @dev: class device that is converted into a Scsi_host. 3069 * @attr: device attribute, not used. 3070 * @buf: buffer for passing information. 3071 * @count: Size of the data buffer. 3072 * 3073 * Returns: 3074 * -EINVAL count is invalid, invalid wwpn byte invalid 3075 * -EPERM oas is not supported by hba 3076 * value of count on success 3077 **/ 3078 static ssize_t 3079 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3080 const char *buf, size_t count) 3081 { 3082 struct Scsi_Host *shost = class_to_shost(dev); 3083 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3084 unsigned int cnt = count; 3085 uint8_t wwpn[WWN_SZ]; 3086 int rc; 3087 3088 if (!phba->cfg_fof) 3089 return -EPERM; 3090 3091 /* count may include a LF at end of string */ 3092 if (buf[cnt-1] == '\n') 3093 cnt--; 3094 3095 rc = lpfc_wwn_set(buf, cnt, wwpn); 3096 if (rc) 3097 return rc; 3098 3099 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3100 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3101 if (wwn_to_u64(wwpn) == 0) 3102 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3103 else 3104 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3105 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3106 if (phba->cfg_oas_priority == 0) 3107 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3108 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3109 return count; 3110 } 3111 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3112 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3113 3114 /** 3115 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3116 * of whether luns will be enabled or disabled 3117 * for Optimized Access Storage (OAS) operations. 3118 * @dev: class device that is converted into a Scsi_host. 3119 * @attr: device attribute, not used. 3120 * @buf: buffer for passing information. 3121 * 3122 * Returns: 3123 * size of formatted string. 3124 **/ 3125 static ssize_t 3126 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3127 char *buf) 3128 { 3129 struct Scsi_Host *shost = class_to_shost(dev); 3130 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3131 3132 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3133 } 3134 3135 /** 3136 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3137 * of whether luns will be enabled or disabled 3138 * for Optimized Access Storage (OAS) operations. 3139 * @dev: class device that is converted into a Scsi_host. 3140 * @attr: device attribute, not used. 3141 * @buf: buffer for passing information. 3142 * @count: Size of the data buffer. 3143 * 3144 * Returns: 3145 * -EINVAL count is invalid, invalid wwpn byte invalid 3146 * -EPERM oas is not supported by hba 3147 * value of count on success 3148 **/ 3149 static ssize_t 3150 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3151 const char *buf, size_t count) 3152 { 3153 struct Scsi_Host *shost = class_to_shost(dev); 3154 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3155 int val = 0; 3156 3157 if (!phba->cfg_fof) 3158 return -EPERM; 3159 3160 if (!isdigit(buf[0])) 3161 return -EINVAL; 3162 3163 if (sscanf(buf, "%i", &val) != 1) 3164 return -EINVAL; 3165 3166 if ((val != 0) && (val != 1)) 3167 return -EINVAL; 3168 3169 phba->cfg_oas_lun_state = val; 3170 return strlen(buf); 3171 } 3172 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3173 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3174 3175 /** 3176 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3177 * Storage (OAS) lun returned by the 3178 * lpfc_oas_lun_show function. 3179 * @dev: class device that is converted into a Scsi_host. 3180 * @attr: device attribute, not used. 3181 * @buf: buffer for passing information. 3182 * 3183 * Returns: 3184 * size of formatted string. 3185 **/ 3186 static ssize_t 3187 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3188 char *buf) 3189 { 3190 struct Scsi_Host *shost = class_to_shost(dev); 3191 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3192 3193 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3194 return -EFAULT; 3195 3196 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3197 } 3198 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3199 lpfc_oas_lun_status_show, NULL); 3200 3201 3202 /** 3203 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3204 * (OAS) operations. 3205 * @phba: lpfc_hba pointer. 3206 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3207 * @tgt_wwpn: wwpn of the target associated with the returned lun 3208 * @lun: the fc lun for setting oas state. 3209 * @oas_state: the oas state to be set to the lun. 3210 * @pri: priority 3211 * 3212 * Returns: 3213 * SUCCESS : 0 3214 * -EPERM OAS is not enabled or not supported by this port. 3215 * 3216 */ 3217 static size_t 3218 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3219 uint8_t tgt_wwpn[], uint64_t lun, 3220 uint32_t oas_state, uint8_t pri) 3221 { 3222 3223 int rc = 0; 3224 3225 if (!phba->cfg_fof) 3226 return -EPERM; 3227 3228 if (oas_state) { 3229 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3230 (struct lpfc_name *)tgt_wwpn, 3231 lun, pri)) 3232 rc = -ENOMEM; 3233 } else { 3234 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3235 (struct lpfc_name *)tgt_wwpn, lun, pri); 3236 } 3237 return rc; 3238 3239 } 3240 3241 /** 3242 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3243 * Access Storage (OAS) operations. 3244 * @phba: lpfc_hba pointer. 3245 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3246 * @tgt_wwpn: wwpn of the target associated with the returned lun 3247 * @lun_status: status of the lun returned lun 3248 * @lun_pri: priority of the lun returned lun 3249 * 3250 * Returns the first or next lun enabled for OAS operations for the vport/target 3251 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3252 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3253 * 3254 * Return: 3255 * lun that is OAS enabled for the vport/target 3256 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3257 */ 3258 static uint64_t 3259 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3260 uint8_t tgt_wwpn[], uint32_t *lun_status, 3261 uint32_t *lun_pri) 3262 { 3263 uint64_t found_lun; 3264 3265 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3266 return NOT_OAS_ENABLED_LUN; 3267 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3268 phba->sli4_hba.oas_next_vpt_wwpn, 3269 (struct lpfc_name *) 3270 phba->sli4_hba.oas_next_tgt_wwpn, 3271 &phba->sli4_hba.oas_next_lun, 3272 (struct lpfc_name *)vpt_wwpn, 3273 (struct lpfc_name *)tgt_wwpn, 3274 &found_lun, lun_status, lun_pri)) 3275 return found_lun; 3276 else 3277 return NOT_OAS_ENABLED_LUN; 3278 } 3279 3280 /** 3281 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3282 * @phba: lpfc_hba pointer. 3283 * @vpt_wwpn: vport wwpn by reference. 3284 * @tgt_wwpn: target wwpn by reference. 3285 * @lun: the fc lun for setting oas state. 3286 * @oas_state: the oas state to be set to the oas_lun. 3287 * @pri: priority 3288 * 3289 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3290 * a lun for OAS operations. 3291 * 3292 * Return: 3293 * SUCCESS: 0 3294 * -ENOMEM: failed to enable an lun for OAS operations 3295 * -EPERM: OAS is not enabled 3296 */ 3297 static ssize_t 3298 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3299 uint8_t tgt_wwpn[], uint64_t lun, 3300 uint32_t oas_state, uint8_t pri) 3301 { 3302 3303 int rc; 3304 3305 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3306 oas_state, pri); 3307 return rc; 3308 } 3309 3310 /** 3311 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3312 * @dev: class device that is converted into a Scsi_host. 3313 * @attr: device attribute, not used. 3314 * @buf: buffer for passing information. 3315 * 3316 * This routine returns a lun enabled for OAS each time the function 3317 * is called. 3318 * 3319 * Returns: 3320 * SUCCESS: size of formatted string. 3321 * -EFAULT: target or vport wwpn was not set properly. 3322 * -EPERM: oas is not enabled. 3323 **/ 3324 static ssize_t 3325 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3326 char *buf) 3327 { 3328 struct Scsi_Host *shost = class_to_shost(dev); 3329 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3330 3331 uint64_t oas_lun; 3332 int len = 0; 3333 3334 if (!phba->cfg_fof) 3335 return -EPERM; 3336 3337 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3338 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3339 return -EFAULT; 3340 3341 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3342 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3343 return -EFAULT; 3344 3345 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3346 phba->cfg_oas_tgt_wwpn, 3347 &phba->cfg_oas_lun_status, 3348 &phba->cfg_oas_priority); 3349 if (oas_lun != NOT_OAS_ENABLED_LUN) 3350 phba->cfg_oas_flags |= OAS_LUN_VALID; 3351 3352 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3353 3354 return len; 3355 } 3356 3357 /** 3358 * lpfc_oas_lun_store - Sets the OAS state for lun 3359 * @dev: class device that is converted into a Scsi_host. 3360 * @attr: device attribute, not used. 3361 * @buf: buffer for passing information. 3362 * @count: size of the formatting string 3363 * 3364 * This function sets the OAS state for lun. Before this function is called, 3365 * the vport wwpn, target wwpn, and oas state need to be set. 3366 * 3367 * Returns: 3368 * SUCCESS: size of formatted string. 3369 * -EFAULT: target or vport wwpn was not set properly. 3370 * -EPERM: oas is not enabled. 3371 * size of formatted string. 3372 **/ 3373 static ssize_t 3374 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3375 const char *buf, size_t count) 3376 { 3377 struct Scsi_Host *shost = class_to_shost(dev); 3378 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3379 uint64_t scsi_lun; 3380 uint32_t pri; 3381 ssize_t rc; 3382 3383 if (!phba->cfg_fof) 3384 return -EPERM; 3385 3386 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3387 return -EFAULT; 3388 3389 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3390 return -EFAULT; 3391 3392 if (!isdigit(buf[0])) 3393 return -EINVAL; 3394 3395 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3396 return -EINVAL; 3397 3398 pri = phba->cfg_oas_priority; 3399 if (pri == 0) 3400 pri = phba->cfg_XLanePriority; 3401 3402 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3403 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3404 "priority 0x%x with oas state %d\n", 3405 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3406 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3407 pri, phba->cfg_oas_lun_state); 3408 3409 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3410 phba->cfg_oas_tgt_wwpn, scsi_lun, 3411 phba->cfg_oas_lun_state, pri); 3412 if (rc) 3413 return rc; 3414 3415 return count; 3416 } 3417 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3418 lpfc_oas_lun_show, lpfc_oas_lun_store); 3419 3420 int lpfc_enable_nvmet_cnt; 3421 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3422 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3423 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3424 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3425 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3426 3427 static int lpfc_poll = 0; 3428 module_param(lpfc_poll, int, S_IRUGO); 3429 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3430 " 0 - none," 3431 " 1 - poll with interrupts enabled" 3432 " 3 - poll and disable FCP ring interrupts"); 3433 3434 static DEVICE_ATTR_RW(lpfc_poll); 3435 3436 int lpfc_no_hba_reset_cnt; 3437 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3438 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3439 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3440 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3441 3442 LPFC_ATTR(sli_mode, 3, 3, 3, 3443 "SLI mode selector: 3 - select SLI-3"); 3444 3445 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3446 "Enable NPIV functionality"); 3447 3448 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3449 "FCF Fast failover=1 Priority failover=2"); 3450 3451 /* 3452 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3453 # 0x0 = disabled, XRI/OXID use not tracked. 3454 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3455 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3456 */ 3457 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3458 "Enable RRQ functionality"); 3459 3460 /* 3461 # lpfc_suppress_link_up: Bring link up at initialization 3462 # 0x0 = bring link up (issue MBX_INIT_LINK) 3463 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3464 # 0x2 = never bring up link 3465 # Default value is 0. 3466 */ 3467 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3468 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3469 "Suppress Link Up at initialization"); 3470 3471 static ssize_t 3472 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3473 { 3474 struct Scsi_Host *shost = class_to_shost(dev); 3475 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3476 3477 return scnprintf(buf, PAGE_SIZE, "%d\n", 3478 phba->sli4_hba.pc_sli4_params.pls); 3479 } 3480 static DEVICE_ATTR(pls, 0444, 3481 lpfc_pls_show, NULL); 3482 3483 static ssize_t 3484 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3485 { 3486 struct Scsi_Host *shost = class_to_shost(dev); 3487 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3488 3489 return scnprintf(buf, PAGE_SIZE, "%d\n", 3490 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3491 } 3492 static DEVICE_ATTR(pt, 0444, 3493 lpfc_pt_show, NULL); 3494 3495 /* 3496 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3497 # 1 - (1024) 3498 # 2 - (2048) 3499 # 3 - (3072) 3500 # 4 - (4096) 3501 # 5 - (5120) 3502 */ 3503 static ssize_t 3504 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3505 { 3506 struct Scsi_Host *shost = class_to_shost(dev); 3507 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3508 3509 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3510 } 3511 3512 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3513 lpfc_iocb_hw_show, NULL); 3514 static ssize_t 3515 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3516 { 3517 struct Scsi_Host *shost = class_to_shost(dev); 3518 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3519 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3520 3521 return scnprintf(buf, PAGE_SIZE, "%d\n", 3522 pring ? pring->txq_max : 0); 3523 } 3524 3525 static DEVICE_ATTR(txq_hw, S_IRUGO, 3526 lpfc_txq_hw_show, NULL); 3527 static ssize_t 3528 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3529 char *buf) 3530 { 3531 struct Scsi_Host *shost = class_to_shost(dev); 3532 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3533 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3534 3535 return scnprintf(buf, PAGE_SIZE, "%d\n", 3536 pring ? pring->txcmplq_max : 0); 3537 } 3538 3539 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3540 lpfc_txcmplq_hw_show, NULL); 3541 3542 /* 3543 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3544 # until the timer expires. Value range is [0,255]. Default value is 30. 3545 */ 3546 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3547 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3548 module_param(lpfc_nodev_tmo, int, 0); 3549 MODULE_PARM_DESC(lpfc_nodev_tmo, 3550 "Seconds driver will hold I/O waiting " 3551 "for a device to come back"); 3552 3553 /** 3554 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3555 * @dev: class converted to a Scsi_host structure. 3556 * @attr: device attribute, not used. 3557 * @buf: on return contains the dev loss timeout in decimal. 3558 * 3559 * Returns: size of formatted string. 3560 **/ 3561 static ssize_t 3562 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3563 char *buf) 3564 { 3565 struct Scsi_Host *shost = class_to_shost(dev); 3566 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3567 3568 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3569 } 3570 3571 /** 3572 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3573 * @vport: lpfc vport structure pointer. 3574 * @val: contains the nodev timeout value. 3575 * 3576 * Description: 3577 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3578 * a kernel error message is printed and zero is returned. 3579 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3580 * Otherwise nodev tmo is set to the default value. 3581 * 3582 * Returns: 3583 * zero if already set or if val is in range 3584 * -EINVAL val out of range 3585 **/ 3586 static int 3587 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3588 { 3589 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3590 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3591 if (val != LPFC_DEF_DEVLOSS_TMO) 3592 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3593 "0407 Ignoring lpfc_nodev_tmo module " 3594 "parameter because lpfc_devloss_tmo " 3595 "is set.\n"); 3596 return 0; 3597 } 3598 3599 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3600 vport->cfg_nodev_tmo = val; 3601 vport->cfg_devloss_tmo = val; 3602 return 0; 3603 } 3604 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3605 "0400 lpfc_nodev_tmo attribute cannot be set to" 3606 " %d, allowed range is [%d, %d]\n", 3607 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3608 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3609 return -EINVAL; 3610 } 3611 3612 /** 3613 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3614 * @vport: lpfc vport structure pointer. 3615 * 3616 * Description: 3617 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3618 **/ 3619 static void 3620 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3621 { 3622 struct Scsi_Host *shost; 3623 struct lpfc_nodelist *ndlp; 3624 #if (IS_ENABLED(CONFIG_NVME_FC)) 3625 struct lpfc_nvme_rport *rport; 3626 struct nvme_fc_remote_port *remoteport = NULL; 3627 #endif 3628 3629 shost = lpfc_shost_from_vport(vport); 3630 spin_lock_irq(shost->host_lock); 3631 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3632 if (ndlp->rport) 3633 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3634 #if (IS_ENABLED(CONFIG_NVME_FC)) 3635 spin_lock(&ndlp->lock); 3636 rport = lpfc_ndlp_get_nrport(ndlp); 3637 if (rport) 3638 remoteport = rport->remoteport; 3639 spin_unlock(&ndlp->lock); 3640 if (rport && remoteport) 3641 nvme_fc_set_remoteport_devloss(remoteport, 3642 vport->cfg_devloss_tmo); 3643 #endif 3644 } 3645 spin_unlock_irq(shost->host_lock); 3646 } 3647 3648 /** 3649 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3650 * @vport: lpfc vport structure pointer. 3651 * @val: contains the tmo value. 3652 * 3653 * Description: 3654 * If the devloss tmo is already set or the vport dev loss tmo has changed 3655 * then a kernel error message is printed and zero is returned. 3656 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3657 * Otherwise nodev tmo is set to the default value. 3658 * 3659 * Returns: 3660 * zero if already set or if val is in range 3661 * -EINVAL val out of range 3662 **/ 3663 static int 3664 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3665 { 3666 if (vport->dev_loss_tmo_changed || 3667 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3668 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3669 "0401 Ignoring change to lpfc_nodev_tmo " 3670 "because lpfc_devloss_tmo is set.\n"); 3671 return 0; 3672 } 3673 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3674 vport->cfg_nodev_tmo = val; 3675 vport->cfg_devloss_tmo = val; 3676 /* 3677 * For compat: set the fc_host dev loss so new rports 3678 * will get the value. 3679 */ 3680 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3681 lpfc_update_rport_devloss_tmo(vport); 3682 return 0; 3683 } 3684 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3685 "0403 lpfc_nodev_tmo attribute cannot be set to " 3686 "%d, allowed range is [%d, %d]\n", 3687 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3688 return -EINVAL; 3689 } 3690 3691 lpfc_vport_param_store(nodev_tmo) 3692 3693 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3694 3695 /* 3696 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3697 # disappear until the timer expires. Value range is [0,255]. Default 3698 # value is 30. 3699 */ 3700 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3701 MODULE_PARM_DESC(lpfc_devloss_tmo, 3702 "Seconds driver will hold I/O waiting " 3703 "for a device to come back"); 3704 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3705 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3706 lpfc_vport_param_show(devloss_tmo) 3707 3708 /** 3709 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3710 * @vport: lpfc vport structure pointer. 3711 * @val: contains the tmo value. 3712 * 3713 * Description: 3714 * If val is in a valid range then set the vport nodev tmo, 3715 * devloss tmo, also set the vport dev loss tmo changed flag. 3716 * Else a kernel error message is printed. 3717 * 3718 * Returns: 3719 * zero if val is in range 3720 * -EINVAL val out of range 3721 **/ 3722 static int 3723 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3724 { 3725 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3726 vport->cfg_nodev_tmo = val; 3727 vport->cfg_devloss_tmo = val; 3728 vport->dev_loss_tmo_changed = 1; 3729 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3730 lpfc_update_rport_devloss_tmo(vport); 3731 return 0; 3732 } 3733 3734 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3735 "0404 lpfc_devloss_tmo attribute cannot be set to " 3736 "%d, allowed range is [%d, %d]\n", 3737 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3738 return -EINVAL; 3739 } 3740 3741 lpfc_vport_param_store(devloss_tmo) 3742 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3743 3744 /* 3745 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3746 * lpfc_suppress_rsp = 0 Disable 3747 * lpfc_suppress_rsp = 1 Enable (default) 3748 * 3749 */ 3750 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3751 "Enable suppress rsp feature is firmware supports it"); 3752 3753 /* 3754 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3755 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3756 * lpfc_nvmet_mrq = 1 use a single RQ pair 3757 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3758 * 3759 */ 3760 LPFC_ATTR_R(nvmet_mrq, 3761 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3762 "Specify number of RQ pairs for processing NVMET cmds"); 3763 3764 /* 3765 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3766 * to each NVMET RQ. Range 64 to 2048, default is 512. 3767 */ 3768 LPFC_ATTR_R(nvmet_mrq_post, 3769 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3770 LPFC_NVMET_RQE_DEF_COUNT, 3771 "Specify number of RQ buffers to initially post"); 3772 3773 /* 3774 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3775 * Supported Values: 1 - register just FCP 3776 * 3 - register both FCP and NVME 3777 * Supported values are [1,3]. Default value is 3 3778 */ 3779 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3780 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3781 "Enable FC4 Protocol support - FCP / NVME"); 3782 3783 /* 3784 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3785 # deluged with LOTS of information. 3786 # You can set a bit mask to record specific types of verbose messages: 3787 # See lpfc_logmsh.h for definitions. 3788 */ 3789 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3790 "Verbose logging bit-mask"); 3791 3792 /* 3793 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3794 # objects that have been registered with the nameserver after login. 3795 */ 3796 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3797 "Deregister nameserver objects before LOGO"); 3798 3799 /* 3800 # lun_queue_depth: This parameter is used to limit the number of outstanding 3801 # commands per FCP LUN. 3802 */ 3803 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3804 "Max number of FCP commands we can queue to a specific LUN"); 3805 3806 /* 3807 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3808 # commands per target port. Value range is [10,65535]. Default value is 65535. 3809 */ 3810 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3811 module_param(lpfc_tgt_queue_depth, uint, 0444); 3812 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3813 lpfc_vport_param_show(tgt_queue_depth); 3814 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3815 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3816 3817 /** 3818 * lpfc_tgt_queue_depth_set: Sets an attribute value. 3819 * @vport: lpfc vport structure pointer. 3820 * @val: integer attribute value. 3821 * 3822 * Description: Sets the parameter to the new value. 3823 * 3824 * Returns: 3825 * zero on success 3826 * -EINVAL if val is invalid 3827 */ 3828 static int 3829 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3830 { 3831 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3832 struct lpfc_nodelist *ndlp; 3833 3834 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3835 return -EINVAL; 3836 3837 if (val == vport->cfg_tgt_queue_depth) 3838 return 0; 3839 3840 spin_lock_irq(shost->host_lock); 3841 vport->cfg_tgt_queue_depth = val; 3842 3843 /* Next loop thru nodelist and change cmd_qdepth */ 3844 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3845 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3846 3847 spin_unlock_irq(shost->host_lock); 3848 return 0; 3849 } 3850 3851 lpfc_vport_param_store(tgt_queue_depth); 3852 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3853 3854 /* 3855 # hba_queue_depth: This parameter is used to limit the number of outstanding 3856 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3857 # value is greater than the maximum number of exchanges supported by the HBA, 3858 # then maximum number of exchanges supported by the HBA is used to determine 3859 # the hba_queue_depth. 3860 */ 3861 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3862 "Max number of FCP commands we can queue to a lpfc HBA"); 3863 3864 /* 3865 # peer_port_login: This parameter allows/prevents logins 3866 # between peer ports hosted on the same physical port. 3867 # When this parameter is set 0 peer ports of same physical port 3868 # are not allowed to login to each other. 3869 # When this parameter is set 1 peer ports of same physical port 3870 # are allowed to login to each other. 3871 # Default value of this parameter is 0. 3872 */ 3873 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3874 "Allow peer ports on the same physical port to login to each " 3875 "other."); 3876 3877 /* 3878 # restrict_login: This parameter allows/prevents logins 3879 # between Virtual Ports and remote initiators. 3880 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3881 # other initiators and will attempt to PLOGI all remote ports. 3882 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3883 # remote ports and will not attempt to PLOGI to other initiators. 3884 # This parameter does not restrict to the physical port. 3885 # This parameter does not restrict logins to Fabric resident remote ports. 3886 # Default value of this parameter is 1. 3887 */ 3888 static int lpfc_restrict_login = 1; 3889 module_param(lpfc_restrict_login, int, S_IRUGO); 3890 MODULE_PARM_DESC(lpfc_restrict_login, 3891 "Restrict virtual ports login to remote initiators."); 3892 lpfc_vport_param_show(restrict_login); 3893 3894 /** 3895 * lpfc_restrict_login_init - Set the vport restrict login flag 3896 * @vport: lpfc vport structure pointer. 3897 * @val: contains the restrict login value. 3898 * 3899 * Description: 3900 * If val is not in a valid range then log a kernel error message and set 3901 * the vport restrict login to one. 3902 * If the port type is physical clear the restrict login flag and return. 3903 * Else set the restrict login flag to val. 3904 * 3905 * Returns: 3906 * zero if val is in range 3907 * -EINVAL val out of range 3908 **/ 3909 static int 3910 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3911 { 3912 if (val < 0 || val > 1) { 3913 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3914 "0422 lpfc_restrict_login attribute cannot " 3915 "be set to %d, allowed range is [0, 1]\n", 3916 val); 3917 vport->cfg_restrict_login = 1; 3918 return -EINVAL; 3919 } 3920 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3921 vport->cfg_restrict_login = 0; 3922 return 0; 3923 } 3924 vport->cfg_restrict_login = val; 3925 return 0; 3926 } 3927 3928 /** 3929 * lpfc_restrict_login_set - Set the vport restrict login flag 3930 * @vport: lpfc vport structure pointer. 3931 * @val: contains the restrict login value. 3932 * 3933 * Description: 3934 * If val is not in a valid range then log a kernel error message and set 3935 * the vport restrict login to one. 3936 * If the port type is physical and the val is not zero log a kernel 3937 * error message, clear the restrict login flag and return zero. 3938 * Else set the restrict login flag to val. 3939 * 3940 * Returns: 3941 * zero if val is in range 3942 * -EINVAL val out of range 3943 **/ 3944 static int 3945 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3946 { 3947 if (val < 0 || val > 1) { 3948 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3949 "0425 lpfc_restrict_login attribute cannot " 3950 "be set to %d, allowed range is [0, 1]\n", 3951 val); 3952 vport->cfg_restrict_login = 1; 3953 return -EINVAL; 3954 } 3955 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3956 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3957 "0468 lpfc_restrict_login must be 0 for " 3958 "Physical ports.\n"); 3959 vport->cfg_restrict_login = 0; 3960 return 0; 3961 } 3962 vport->cfg_restrict_login = val; 3963 return 0; 3964 } 3965 lpfc_vport_param_store(restrict_login); 3966 static DEVICE_ATTR_RW(lpfc_restrict_login); 3967 3968 /* 3969 # Some disk devices have a "select ID" or "select Target" capability. 3970 # From a protocol standpoint "select ID" usually means select the 3971 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3972 # annex" which contains a table that maps a "select ID" (a number 3973 # between 0 and 7F) to an ALPA. By default, for compatibility with 3974 # older drivers, the lpfc driver scans this table from low ALPA to high 3975 # ALPA. 3976 # 3977 # Turning on the scan-down variable (on = 1, off = 0) will 3978 # cause the lpfc driver to use an inverted table, effectively 3979 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3980 # 3981 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3982 # and will not work across a fabric. Also this parameter will take 3983 # effect only in the case when ALPA map is not available.) 3984 */ 3985 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3986 "Start scanning for devices from highest ALPA to lowest"); 3987 3988 /* 3989 # lpfc_topology: link topology for init link 3990 # 0x0 = attempt loop mode then point-to-point 3991 # 0x01 = internal loopback mode 3992 # 0x02 = attempt point-to-point mode only 3993 # 0x04 = attempt loop mode only 3994 # 0x06 = attempt point-to-point mode then loop 3995 # Set point-to-point mode if you want to run as an N_Port. 3996 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 3997 # Default value is 0. 3998 */ 3999 LPFC_ATTR(topology, 0, 0, 6, 4000 "Select Fibre Channel topology"); 4001 4002 /** 4003 * lpfc_topology_store - Set the adapters topology field 4004 * @dev: class device that is converted into a scsi_host. 4005 * @attr:device attribute, not used. 4006 * @buf: buffer for passing information. 4007 * @count: size of the data buffer. 4008 * 4009 * Description: 4010 * If val is in a valid range then set the adapter's topology field and 4011 * issue a lip; if the lip fails reset the topology to the old value. 4012 * 4013 * If the value is not in range log a kernel error message and return an error. 4014 * 4015 * Returns: 4016 * zero if val is in range and lip okay 4017 * non-zero return value from lpfc_issue_lip() 4018 * -EINVAL val out of range 4019 **/ 4020 static ssize_t 4021 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4022 const char *buf, size_t count) 4023 { 4024 struct Scsi_Host *shost = class_to_shost(dev); 4025 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4026 struct lpfc_hba *phba = vport->phba; 4027 int val = 0; 4028 int nolip = 0; 4029 const char *val_buf = buf; 4030 int err; 4031 uint32_t prev_val; 4032 4033 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4034 nolip = 1; 4035 val_buf = &buf[strlen("nolip ")]; 4036 } 4037 4038 if (!isdigit(val_buf[0])) 4039 return -EINVAL; 4040 if (sscanf(val_buf, "%i", &val) != 1) 4041 return -EINVAL; 4042 4043 if (val >= 0 && val <= 6) { 4044 prev_val = phba->cfg_topology; 4045 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4046 val == 4) { 4047 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4048 "3113 Loop mode not supported at speed %d\n", 4049 val); 4050 return -EINVAL; 4051 } 4052 /* 4053 * The 'topology' is not a configurable parameter if : 4054 * - persistent topology enabled 4055 * - G7/G6 with no private loop support 4056 */ 4057 4058 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4059 (!phba->sli4_hba.pc_sli4_params.pls && 4060 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4061 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) && 4062 val == 4) { 4063 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4064 "3114 Loop mode not supported\n"); 4065 return -EINVAL; 4066 } 4067 phba->cfg_topology = val; 4068 if (nolip) 4069 return strlen(buf); 4070 4071 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4072 "3054 lpfc_topology changed from %d to %d\n", 4073 prev_val, val); 4074 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4075 phba->fc_topology_changed = 1; 4076 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4077 if (err) { 4078 phba->cfg_topology = prev_val; 4079 return -EINVAL; 4080 } else 4081 return strlen(buf); 4082 } 4083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4084 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4085 "allowed range is [0, 6]\n", 4086 phba->brd_no, val); 4087 return -EINVAL; 4088 } 4089 4090 lpfc_param_show(topology) 4091 static DEVICE_ATTR_RW(lpfc_topology); 4092 4093 /** 4094 * lpfc_static_vport_show: Read callback function for 4095 * lpfc_static_vport sysfs file. 4096 * @dev: Pointer to class device object. 4097 * @attr: device attribute structure. 4098 * @buf: Data buffer. 4099 * 4100 * This function is the read call back function for 4101 * lpfc_static_vport sysfs file. The lpfc_static_vport 4102 * sysfs file report the mageability of the vport. 4103 **/ 4104 static ssize_t 4105 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4106 char *buf) 4107 { 4108 struct Scsi_Host *shost = class_to_shost(dev); 4109 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4110 if (vport->vport_flag & STATIC_VPORT) 4111 sprintf(buf, "1\n"); 4112 else 4113 sprintf(buf, "0\n"); 4114 4115 return strlen(buf); 4116 } 4117 4118 /* 4119 * Sysfs attribute to control the statistical data collection. 4120 */ 4121 static DEVICE_ATTR_RO(lpfc_static_vport); 4122 4123 /** 4124 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4125 * @dev: Pointer to class device. 4126 * @attr: Unused. 4127 * @buf: Data buffer. 4128 * @count: Size of the data buffer. 4129 * 4130 * This function get called when a user write to the lpfc_stat_data_ctrl 4131 * sysfs file. This function parse the command written to the sysfs file 4132 * and take appropriate action. These commands are used for controlling 4133 * driver statistical data collection. 4134 * Following are the command this function handles. 4135 * 4136 * setbucket <bucket_type> <base> <step> 4137 * = Set the latency buckets. 4138 * destroybucket = destroy all the buckets. 4139 * start = start data collection 4140 * stop = stop data collection 4141 * reset = reset the collected data 4142 **/ 4143 static ssize_t 4144 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4145 const char *buf, size_t count) 4146 { 4147 struct Scsi_Host *shost = class_to_shost(dev); 4148 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4149 struct lpfc_hba *phba = vport->phba; 4150 #define LPFC_MAX_DATA_CTRL_LEN 1024 4151 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4152 unsigned long i; 4153 char *str_ptr, *token; 4154 struct lpfc_vport **vports; 4155 struct Scsi_Host *v_shost; 4156 char *bucket_type_str, *base_str, *step_str; 4157 unsigned long base, step, bucket_type; 4158 4159 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4160 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4161 return -EINVAL; 4162 4163 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4164 str_ptr = &bucket_data[0]; 4165 /* Ignore this token - this is command token */ 4166 token = strsep(&str_ptr, "\t "); 4167 if (!token) 4168 return -EINVAL; 4169 4170 bucket_type_str = strsep(&str_ptr, "\t "); 4171 if (!bucket_type_str) 4172 return -EINVAL; 4173 4174 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4175 bucket_type = LPFC_LINEAR_BUCKET; 4176 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4177 bucket_type = LPFC_POWER2_BUCKET; 4178 else 4179 return -EINVAL; 4180 4181 base_str = strsep(&str_ptr, "\t "); 4182 if (!base_str) 4183 return -EINVAL; 4184 base = simple_strtoul(base_str, NULL, 0); 4185 4186 step_str = strsep(&str_ptr, "\t "); 4187 if (!step_str) 4188 return -EINVAL; 4189 step = simple_strtoul(step_str, NULL, 0); 4190 if (!step) 4191 return -EINVAL; 4192 4193 /* Block the data collection for every vport */ 4194 vports = lpfc_create_vport_work_array(phba); 4195 if (vports == NULL) 4196 return -ENOMEM; 4197 4198 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4199 v_shost = lpfc_shost_from_vport(vports[i]); 4200 spin_lock_irq(v_shost->host_lock); 4201 /* Block and reset data collection */ 4202 vports[i]->stat_data_blocked = 1; 4203 if (vports[i]->stat_data_enabled) 4204 lpfc_vport_reset_stat_data(vports[i]); 4205 spin_unlock_irq(v_shost->host_lock); 4206 } 4207 4208 /* Set the bucket attributes */ 4209 phba->bucket_type = bucket_type; 4210 phba->bucket_base = base; 4211 phba->bucket_step = step; 4212 4213 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4214 v_shost = lpfc_shost_from_vport(vports[i]); 4215 4216 /* Unblock data collection */ 4217 spin_lock_irq(v_shost->host_lock); 4218 vports[i]->stat_data_blocked = 0; 4219 spin_unlock_irq(v_shost->host_lock); 4220 } 4221 lpfc_destroy_vport_work_array(phba, vports); 4222 return strlen(buf); 4223 } 4224 4225 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4226 vports = lpfc_create_vport_work_array(phba); 4227 if (vports == NULL) 4228 return -ENOMEM; 4229 4230 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4231 v_shost = lpfc_shost_from_vport(vports[i]); 4232 spin_lock_irq(shost->host_lock); 4233 vports[i]->stat_data_blocked = 1; 4234 lpfc_free_bucket(vport); 4235 vport->stat_data_enabled = 0; 4236 vports[i]->stat_data_blocked = 0; 4237 spin_unlock_irq(shost->host_lock); 4238 } 4239 lpfc_destroy_vport_work_array(phba, vports); 4240 phba->bucket_type = LPFC_NO_BUCKET; 4241 phba->bucket_base = 0; 4242 phba->bucket_step = 0; 4243 return strlen(buf); 4244 } 4245 4246 if (!strncmp(buf, "start", strlen("start"))) { 4247 /* If no buckets configured return error */ 4248 if (phba->bucket_type == LPFC_NO_BUCKET) 4249 return -EINVAL; 4250 spin_lock_irq(shost->host_lock); 4251 if (vport->stat_data_enabled) { 4252 spin_unlock_irq(shost->host_lock); 4253 return strlen(buf); 4254 } 4255 lpfc_alloc_bucket(vport); 4256 vport->stat_data_enabled = 1; 4257 spin_unlock_irq(shost->host_lock); 4258 return strlen(buf); 4259 } 4260 4261 if (!strncmp(buf, "stop", strlen("stop"))) { 4262 spin_lock_irq(shost->host_lock); 4263 if (vport->stat_data_enabled == 0) { 4264 spin_unlock_irq(shost->host_lock); 4265 return strlen(buf); 4266 } 4267 lpfc_free_bucket(vport); 4268 vport->stat_data_enabled = 0; 4269 spin_unlock_irq(shost->host_lock); 4270 return strlen(buf); 4271 } 4272 4273 if (!strncmp(buf, "reset", strlen("reset"))) { 4274 if ((phba->bucket_type == LPFC_NO_BUCKET) 4275 || !vport->stat_data_enabled) 4276 return strlen(buf); 4277 spin_lock_irq(shost->host_lock); 4278 vport->stat_data_blocked = 1; 4279 lpfc_vport_reset_stat_data(vport); 4280 vport->stat_data_blocked = 0; 4281 spin_unlock_irq(shost->host_lock); 4282 return strlen(buf); 4283 } 4284 return -EINVAL; 4285 } 4286 4287 4288 /** 4289 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4290 * @dev: Pointer to class device. 4291 * @attr: Unused. 4292 * @buf: Data buffer. 4293 * 4294 * This function is the read call back function for 4295 * lpfc_stat_data_ctrl sysfs file. This function report the 4296 * current statistical data collection state. 4297 **/ 4298 static ssize_t 4299 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4300 char *buf) 4301 { 4302 struct Scsi_Host *shost = class_to_shost(dev); 4303 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4304 struct lpfc_hba *phba = vport->phba; 4305 int index = 0; 4306 int i; 4307 char *bucket_type; 4308 unsigned long bucket_value; 4309 4310 switch (phba->bucket_type) { 4311 case LPFC_LINEAR_BUCKET: 4312 bucket_type = "linear"; 4313 break; 4314 case LPFC_POWER2_BUCKET: 4315 bucket_type = "power2"; 4316 break; 4317 default: 4318 bucket_type = "No Bucket"; 4319 break; 4320 } 4321 4322 sprintf(&buf[index], "Statistical Data enabled :%d, " 4323 "blocked :%d, Bucket type :%s, Bucket base :%d," 4324 " Bucket step :%d\nLatency Ranges :", 4325 vport->stat_data_enabled, vport->stat_data_blocked, 4326 bucket_type, phba->bucket_base, phba->bucket_step); 4327 index = strlen(buf); 4328 if (phba->bucket_type != LPFC_NO_BUCKET) { 4329 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4330 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4331 bucket_value = phba->bucket_base + 4332 phba->bucket_step * i; 4333 else 4334 bucket_value = phba->bucket_base + 4335 (1 << i) * phba->bucket_step; 4336 4337 if (index + 10 > PAGE_SIZE) 4338 break; 4339 sprintf(&buf[index], "%08ld ", bucket_value); 4340 index = strlen(buf); 4341 } 4342 } 4343 sprintf(&buf[index], "\n"); 4344 return strlen(buf); 4345 } 4346 4347 /* 4348 * Sysfs attribute to control the statistical data collection. 4349 */ 4350 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4351 4352 /* 4353 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4354 */ 4355 4356 /* 4357 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4358 * for each target. 4359 */ 4360 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4361 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4362 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4363 4364 4365 /** 4366 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4367 * @filp: sysfs file 4368 * @kobj: Pointer to the kernel object 4369 * @bin_attr: Attribute object 4370 * @buf: Buffer pointer 4371 * @off: File offset 4372 * @count: Buffer size 4373 * 4374 * This function is the read call back function for lpfc_drvr_stat_data 4375 * sysfs file. This function export the statistical data to user 4376 * applications. 4377 **/ 4378 static ssize_t 4379 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4380 struct bin_attribute *bin_attr, 4381 char *buf, loff_t off, size_t count) 4382 { 4383 struct device *dev = container_of(kobj, struct device, 4384 kobj); 4385 struct Scsi_Host *shost = class_to_shost(dev); 4386 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4387 struct lpfc_hba *phba = vport->phba; 4388 int i = 0, index = 0; 4389 unsigned long nport_index; 4390 struct lpfc_nodelist *ndlp = NULL; 4391 nport_index = (unsigned long)off / 4392 MAX_STAT_DATA_SIZE_PER_TARGET; 4393 4394 if (!vport->stat_data_enabled || vport->stat_data_blocked 4395 || (phba->bucket_type == LPFC_NO_BUCKET)) 4396 return 0; 4397 4398 spin_lock_irq(shost->host_lock); 4399 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4400 if (!ndlp->lat_data) 4401 continue; 4402 4403 if (nport_index > 0) { 4404 nport_index--; 4405 continue; 4406 } 4407 4408 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4409 > count) 4410 break; 4411 4412 if (!ndlp->lat_data) 4413 continue; 4414 4415 /* Print the WWN */ 4416 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4417 ndlp->nlp_portname.u.wwn[0], 4418 ndlp->nlp_portname.u.wwn[1], 4419 ndlp->nlp_portname.u.wwn[2], 4420 ndlp->nlp_portname.u.wwn[3], 4421 ndlp->nlp_portname.u.wwn[4], 4422 ndlp->nlp_portname.u.wwn[5], 4423 ndlp->nlp_portname.u.wwn[6], 4424 ndlp->nlp_portname.u.wwn[7]); 4425 4426 index = strlen(buf); 4427 4428 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4429 sprintf(&buf[index], "%010u,", 4430 ndlp->lat_data[i].cmd_count); 4431 index = strlen(buf); 4432 } 4433 sprintf(&buf[index], "\n"); 4434 index = strlen(buf); 4435 } 4436 spin_unlock_irq(shost->host_lock); 4437 return index; 4438 } 4439 4440 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4441 .attr = { 4442 .name = "lpfc_drvr_stat_data", 4443 .mode = S_IRUSR, 4444 }, 4445 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4446 .read = sysfs_drvr_stat_data_read, 4447 .write = NULL, 4448 }; 4449 4450 /* 4451 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4452 # connection. 4453 # Value range is [0,16]. Default value is 0. 4454 */ 4455 /** 4456 * lpfc_link_speed_store - Set the adapters link speed 4457 * @dev: Pointer to class device. 4458 * @attr: Unused. 4459 * @buf: Data buffer. 4460 * @count: Size of the data buffer. 4461 * 4462 * Description: 4463 * If val is in a valid range then set the adapter's link speed field and 4464 * issue a lip; if the lip fails reset the link speed to the old value. 4465 * 4466 * Notes: 4467 * If the value is not in range log a kernel error message and return an error. 4468 * 4469 * Returns: 4470 * zero if val is in range and lip okay. 4471 * non-zero return value from lpfc_issue_lip() 4472 * -EINVAL val out of range 4473 **/ 4474 static ssize_t 4475 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4476 const char *buf, size_t count) 4477 { 4478 struct Scsi_Host *shost = class_to_shost(dev); 4479 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4480 struct lpfc_hba *phba = vport->phba; 4481 int val = LPFC_USER_LINK_SPEED_AUTO; 4482 int nolip = 0; 4483 const char *val_buf = buf; 4484 int err; 4485 uint32_t prev_val, if_type; 4486 4487 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4488 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4489 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4490 return -EPERM; 4491 4492 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4493 nolip = 1; 4494 val_buf = &buf[strlen("nolip ")]; 4495 } 4496 4497 if (!isdigit(val_buf[0])) 4498 return -EINVAL; 4499 if (sscanf(val_buf, "%i", &val) != 1) 4500 return -EINVAL; 4501 4502 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4503 "3055 lpfc_link_speed changed from %d to %d %s\n", 4504 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4505 4506 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4507 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4508 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4509 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4510 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4511 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4512 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4513 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4515 "2879 lpfc_link_speed attribute cannot be set " 4516 "to %d. Speed is not supported by this port.\n", 4517 val); 4518 return -EINVAL; 4519 } 4520 if (val >= LPFC_USER_LINK_SPEED_16G && 4521 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4523 "3112 lpfc_link_speed attribute cannot be set " 4524 "to %d. Speed is not supported in loop mode.\n", 4525 val); 4526 return -EINVAL; 4527 } 4528 4529 switch (val) { 4530 case LPFC_USER_LINK_SPEED_AUTO: 4531 case LPFC_USER_LINK_SPEED_1G: 4532 case LPFC_USER_LINK_SPEED_2G: 4533 case LPFC_USER_LINK_SPEED_4G: 4534 case LPFC_USER_LINK_SPEED_8G: 4535 case LPFC_USER_LINK_SPEED_16G: 4536 case LPFC_USER_LINK_SPEED_32G: 4537 case LPFC_USER_LINK_SPEED_64G: 4538 prev_val = phba->cfg_link_speed; 4539 phba->cfg_link_speed = val; 4540 if (nolip) 4541 return strlen(buf); 4542 4543 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4544 if (err) { 4545 phba->cfg_link_speed = prev_val; 4546 return -EINVAL; 4547 } 4548 return strlen(buf); 4549 default: 4550 break; 4551 } 4552 4553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4554 "0469 lpfc_link_speed attribute cannot be set to %d, " 4555 "allowed values are [%s]\n", 4556 val, LPFC_LINK_SPEED_STRING); 4557 return -EINVAL; 4558 4559 } 4560 4561 static int lpfc_link_speed = 0; 4562 module_param(lpfc_link_speed, int, S_IRUGO); 4563 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4564 lpfc_param_show(link_speed) 4565 4566 /** 4567 * lpfc_link_speed_init - Set the adapters link speed 4568 * @phba: lpfc_hba pointer. 4569 * @val: link speed value. 4570 * 4571 * Description: 4572 * If val is in a valid range then set the adapter's link speed field. 4573 * 4574 * Notes: 4575 * If the value is not in range log a kernel error message, clear the link 4576 * speed and return an error. 4577 * 4578 * Returns: 4579 * zero if val saved. 4580 * -EINVAL val out of range 4581 **/ 4582 static int 4583 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4584 { 4585 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4587 "3111 lpfc_link_speed of %d cannot " 4588 "support loop mode, setting topology to default.\n", 4589 val); 4590 phba->cfg_topology = 0; 4591 } 4592 4593 switch (val) { 4594 case LPFC_USER_LINK_SPEED_AUTO: 4595 case LPFC_USER_LINK_SPEED_1G: 4596 case LPFC_USER_LINK_SPEED_2G: 4597 case LPFC_USER_LINK_SPEED_4G: 4598 case LPFC_USER_LINK_SPEED_8G: 4599 case LPFC_USER_LINK_SPEED_16G: 4600 case LPFC_USER_LINK_SPEED_32G: 4601 case LPFC_USER_LINK_SPEED_64G: 4602 phba->cfg_link_speed = val; 4603 return 0; 4604 default: 4605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4606 "0405 lpfc_link_speed attribute cannot " 4607 "be set to %d, allowed values are " 4608 "["LPFC_LINK_SPEED_STRING"]\n", val); 4609 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4610 return -EINVAL; 4611 } 4612 } 4613 4614 static DEVICE_ATTR_RW(lpfc_link_speed); 4615 4616 /* 4617 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4618 # 0 = aer disabled or not supported 4619 # 1 = aer supported and enabled (default) 4620 # Value range is [0,1]. Default value is 1. 4621 */ 4622 LPFC_ATTR(aer_support, 1, 0, 1, 4623 "Enable PCIe device AER support"); 4624 lpfc_param_show(aer_support) 4625 4626 /** 4627 * lpfc_aer_support_store - Set the adapter for aer support 4628 * 4629 * @dev: class device that is converted into a Scsi_host. 4630 * @attr: device attribute, not used. 4631 * @buf: containing enable or disable aer flag. 4632 * @count: unused variable. 4633 * 4634 * Description: 4635 * If the val is 1 and currently the device's AER capability was not 4636 * enabled, invoke the kernel's enable AER helper routine, trying to 4637 * enable the device's AER capability. If the helper routine enabling 4638 * AER returns success, update the device's cfg_aer_support flag to 4639 * indicate AER is supported by the device; otherwise, if the device 4640 * AER capability is already enabled to support AER, then do nothing. 4641 * 4642 * If the val is 0 and currently the device's AER support was enabled, 4643 * invoke the kernel's disable AER helper routine. After that, update 4644 * the device's cfg_aer_support flag to indicate AER is not supported 4645 * by the device; otherwise, if the device AER capability is already 4646 * disabled from supporting AER, then do nothing. 4647 * 4648 * Returns: 4649 * length of the buf on success if val is in range the intended mode 4650 * is supported. 4651 * -EINVAL if val out of range or intended mode is not supported. 4652 **/ 4653 static ssize_t 4654 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4655 const char *buf, size_t count) 4656 { 4657 struct Scsi_Host *shost = class_to_shost(dev); 4658 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4659 struct lpfc_hba *phba = vport->phba; 4660 int val = 0, rc = -EINVAL; 4661 4662 if (!isdigit(buf[0])) 4663 return -EINVAL; 4664 if (sscanf(buf, "%i", &val) != 1) 4665 return -EINVAL; 4666 4667 switch (val) { 4668 case 0: 4669 if (phba->hba_flag & HBA_AER_ENABLED) { 4670 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4671 if (!rc) { 4672 spin_lock_irq(&phba->hbalock); 4673 phba->hba_flag &= ~HBA_AER_ENABLED; 4674 spin_unlock_irq(&phba->hbalock); 4675 phba->cfg_aer_support = 0; 4676 rc = strlen(buf); 4677 } else 4678 rc = -EPERM; 4679 } else { 4680 phba->cfg_aer_support = 0; 4681 rc = strlen(buf); 4682 } 4683 break; 4684 case 1: 4685 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4686 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4687 if (!rc) { 4688 spin_lock_irq(&phba->hbalock); 4689 phba->hba_flag |= HBA_AER_ENABLED; 4690 spin_unlock_irq(&phba->hbalock); 4691 phba->cfg_aer_support = 1; 4692 rc = strlen(buf); 4693 } else 4694 rc = -EPERM; 4695 } else { 4696 phba->cfg_aer_support = 1; 4697 rc = strlen(buf); 4698 } 4699 break; 4700 default: 4701 rc = -EINVAL; 4702 break; 4703 } 4704 return rc; 4705 } 4706 4707 static DEVICE_ATTR_RW(lpfc_aer_support); 4708 4709 /** 4710 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4711 * @dev: class device that is converted into a Scsi_host. 4712 * @attr: device attribute, not used. 4713 * @buf: containing flag 1 for aer cleanup state. 4714 * @count: unused variable. 4715 * 4716 * Description: 4717 * If the @buf contains 1 and the device currently has the AER support 4718 * enabled, then invokes the kernel AER helper routine 4719 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4720 * error status register. 4721 * 4722 * Notes: 4723 * 4724 * Returns: 4725 * -EINVAL if the buf does not contain the 1 or the device is not currently 4726 * enabled with the AER support. 4727 **/ 4728 static ssize_t 4729 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4730 const char *buf, size_t count) 4731 { 4732 struct Scsi_Host *shost = class_to_shost(dev); 4733 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4734 struct lpfc_hba *phba = vport->phba; 4735 int val, rc = -1; 4736 4737 if (!isdigit(buf[0])) 4738 return -EINVAL; 4739 if (sscanf(buf, "%i", &val) != 1) 4740 return -EINVAL; 4741 if (val != 1) 4742 return -EINVAL; 4743 4744 if (phba->hba_flag & HBA_AER_ENABLED) 4745 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4746 4747 if (rc == 0) 4748 return strlen(buf); 4749 else 4750 return -EPERM; 4751 } 4752 4753 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4754 lpfc_aer_cleanup_state); 4755 4756 /** 4757 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4758 * 4759 * @dev: class device that is converted into a Scsi_host. 4760 * @attr: device attribute, not used. 4761 * @buf: containing the string the number of vfs to be enabled. 4762 * @count: unused variable. 4763 * 4764 * Description: 4765 * When this api is called either through user sysfs, the driver shall 4766 * try to enable or disable SR-IOV virtual functions according to the 4767 * following: 4768 * 4769 * If zero virtual function has been enabled to the physical function, 4770 * the driver shall invoke the pci enable virtual function api trying 4771 * to enable the virtual functions. If the nr_vfn provided is greater 4772 * than the maximum supported, the maximum virtual function number will 4773 * be used for invoking the api; otherwise, the nr_vfn provided shall 4774 * be used for invoking the api. If the api call returned success, the 4775 * actual number of virtual functions enabled will be set to the driver 4776 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4777 * cfg_sriov_nr_virtfn remains zero. 4778 * 4779 * If none-zero virtual functions have already been enabled to the 4780 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4781 * -EINVAL will be returned and the driver does nothing; 4782 * 4783 * If the nr_vfn provided is zero and none-zero virtual functions have 4784 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4785 * disabling virtual function api shall be invoded to disable all the 4786 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4787 * zero. Otherwise, if zero virtual function has been enabled, do 4788 * nothing. 4789 * 4790 * Returns: 4791 * length of the buf on success if val is in range the intended mode 4792 * is supported. 4793 * -EINVAL if val out of range or intended mode is not supported. 4794 **/ 4795 static ssize_t 4796 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4797 const char *buf, size_t count) 4798 { 4799 struct Scsi_Host *shost = class_to_shost(dev); 4800 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4801 struct lpfc_hba *phba = vport->phba; 4802 struct pci_dev *pdev = phba->pcidev; 4803 int val = 0, rc = -EINVAL; 4804 4805 /* Sanity check on user data */ 4806 if (!isdigit(buf[0])) 4807 return -EINVAL; 4808 if (sscanf(buf, "%i", &val) != 1) 4809 return -EINVAL; 4810 if (val < 0) 4811 return -EINVAL; 4812 4813 /* Request disabling virtual functions */ 4814 if (val == 0) { 4815 if (phba->cfg_sriov_nr_virtfn > 0) { 4816 pci_disable_sriov(pdev); 4817 phba->cfg_sriov_nr_virtfn = 0; 4818 } 4819 return strlen(buf); 4820 } 4821 4822 /* Request enabling virtual functions */ 4823 if (phba->cfg_sriov_nr_virtfn > 0) { 4824 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4825 "3018 There are %d virtual functions " 4826 "enabled on physical function.\n", 4827 phba->cfg_sriov_nr_virtfn); 4828 return -EEXIST; 4829 } 4830 4831 if (val <= LPFC_MAX_VFN_PER_PFN) 4832 phba->cfg_sriov_nr_virtfn = val; 4833 else { 4834 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4835 "3019 Enabling %d virtual functions is not " 4836 "allowed.\n", val); 4837 return -EINVAL; 4838 } 4839 4840 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4841 if (rc) { 4842 phba->cfg_sriov_nr_virtfn = 0; 4843 rc = -EPERM; 4844 } else 4845 rc = strlen(buf); 4846 4847 return rc; 4848 } 4849 4850 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4851 "Enable PCIe device SR-IOV virtual fn"); 4852 4853 lpfc_param_show(sriov_nr_virtfn) 4854 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4855 4856 /** 4857 * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade 4858 * 4859 * @dev: class device that is converted into a Scsi_host. 4860 * @attr: device attribute, not used. 4861 * @buf: containing the string the number of vfs to be enabled. 4862 * @count: unused variable. 4863 * 4864 * Description: 4865 * 4866 * Returns: 4867 * length of the buf on success if val is in range the intended mode 4868 * is supported. 4869 * -EINVAL if val out of range or intended mode is not supported. 4870 **/ 4871 static ssize_t 4872 lpfc_request_firmware_upgrade_store(struct device *dev, 4873 struct device_attribute *attr, 4874 const char *buf, size_t count) 4875 { 4876 struct Scsi_Host *shost = class_to_shost(dev); 4877 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4878 struct lpfc_hba *phba = vport->phba; 4879 int val = 0, rc; 4880 4881 /* Sanity check on user data */ 4882 if (!isdigit(buf[0])) 4883 return -EINVAL; 4884 if (sscanf(buf, "%i", &val) != 1) 4885 return -EINVAL; 4886 if (val != 1) 4887 return -EINVAL; 4888 4889 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4890 if (rc) 4891 rc = -EPERM; 4892 else 4893 rc = strlen(buf); 4894 return rc; 4895 } 4896 4897 static int lpfc_req_fw_upgrade; 4898 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4899 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4900 lpfc_param_show(request_firmware_upgrade) 4901 4902 /** 4903 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4904 * @phba: lpfc_hba pointer. 4905 * @val: 0 or 1. 4906 * 4907 * Description: 4908 * Set the initial Linux generic firmware upgrade enable or disable flag. 4909 * 4910 * Returns: 4911 * zero if val saved. 4912 * -EINVAL val out of range 4913 **/ 4914 static int 4915 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4916 { 4917 if (val >= 0 && val <= 1) { 4918 phba->cfg_request_firmware_upgrade = val; 4919 return 0; 4920 } 4921 return -EINVAL; 4922 } 4923 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4924 lpfc_request_firmware_upgrade_show, 4925 lpfc_request_firmware_upgrade_store); 4926 4927 /** 4928 * lpfc_force_rscn_store 4929 * 4930 * @dev: class device that is converted into a Scsi_host. 4931 * @attr: device attribute, not used. 4932 * @buf: unused string 4933 * @count: unused variable. 4934 * 4935 * Description: 4936 * Force the switch to send a RSCN to all other NPorts in our zone 4937 * If we are direct connect pt2pt, build the RSCN command ourself 4938 * and send to the other NPort. Not supported for private loop. 4939 * 4940 * Returns: 4941 * 0 - on success 4942 * -EIO - if command is not sent 4943 **/ 4944 static ssize_t 4945 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4946 const char *buf, size_t count) 4947 { 4948 struct Scsi_Host *shost = class_to_shost(dev); 4949 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4950 int i; 4951 4952 i = lpfc_issue_els_rscn(vport, 0); 4953 if (i) 4954 return -EIO; 4955 return strlen(buf); 4956 } 4957 4958 /* 4959 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4960 * connected to the HBA. 4961 * 4962 * Value range is any ascii value 4963 */ 4964 static int lpfc_force_rscn; 4965 module_param(lpfc_force_rscn, int, 0644); 4966 MODULE_PARM_DESC(lpfc_force_rscn, 4967 "Force an RSCN to be sent to all remote NPorts"); 4968 lpfc_param_show(force_rscn) 4969 4970 /** 4971 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4972 * @phba: lpfc_hba pointer. 4973 * @val: unused value. 4974 * 4975 * Returns: 4976 * zero if val saved. 4977 **/ 4978 static int 4979 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4980 { 4981 return 0; 4982 } 4983 static DEVICE_ATTR_RW(lpfc_force_rscn); 4984 4985 /** 4986 * lpfc_fcp_imax_store 4987 * 4988 * @dev: class device that is converted into a Scsi_host. 4989 * @attr: device attribute, not used. 4990 * @buf: string with the number of fast-path FCP interrupts per second. 4991 * @count: unused variable. 4992 * 4993 * Description: 4994 * If val is in a valid range [636,651042], then set the adapter's 4995 * maximum number of fast-path FCP interrupts per second. 4996 * 4997 * Returns: 4998 * length of the buf on success if val is in range the intended mode 4999 * is supported. 5000 * -EINVAL if val out of range or intended mode is not supported. 5001 **/ 5002 static ssize_t 5003 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5004 const char *buf, size_t count) 5005 { 5006 struct Scsi_Host *shost = class_to_shost(dev); 5007 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5008 struct lpfc_hba *phba = vport->phba; 5009 struct lpfc_eq_intr_info *eqi; 5010 uint32_t usdelay; 5011 int val = 0, i; 5012 5013 /* fcp_imax is only valid for SLI4 */ 5014 if (phba->sli_rev != LPFC_SLI_REV4) 5015 return -EINVAL; 5016 5017 /* Sanity check on user data */ 5018 if (!isdigit(buf[0])) 5019 return -EINVAL; 5020 if (sscanf(buf, "%i", &val) != 1) 5021 return -EINVAL; 5022 5023 /* 5024 * Value range for the HBA is [5000,5000000] 5025 * The value for each EQ depends on how many EQs are configured. 5026 * Allow value == 0 5027 */ 5028 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5029 return -EINVAL; 5030 5031 phba->cfg_auto_imax = (val) ? 0 : 1; 5032 if (phba->cfg_fcp_imax && !val) { 5033 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5034 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5035 5036 for_each_present_cpu(i) { 5037 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5038 eqi->icnt = 0; 5039 } 5040 } 5041 5042 phba->cfg_fcp_imax = (uint32_t)val; 5043 5044 if (phba->cfg_fcp_imax) 5045 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5046 else 5047 usdelay = 0; 5048 5049 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5050 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5051 usdelay); 5052 5053 return strlen(buf); 5054 } 5055 5056 /* 5057 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5058 # for the HBA. 5059 # 5060 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5061 */ 5062 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5063 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5064 MODULE_PARM_DESC(lpfc_fcp_imax, 5065 "Set the maximum number of FCP interrupts per second per HBA"); 5066 lpfc_param_show(fcp_imax) 5067 5068 /** 5069 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5070 * @phba: lpfc_hba pointer. 5071 * @val: link speed value. 5072 * 5073 * Description: 5074 * If val is in a valid range [636,651042], then initialize the adapter's 5075 * maximum number of fast-path FCP interrupts per second. 5076 * 5077 * Returns: 5078 * zero if val saved. 5079 * -EINVAL val out of range 5080 **/ 5081 static int 5082 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5083 { 5084 if (phba->sli_rev != LPFC_SLI_REV4) { 5085 phba->cfg_fcp_imax = 0; 5086 return 0; 5087 } 5088 5089 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5090 (val == 0)) { 5091 phba->cfg_fcp_imax = val; 5092 return 0; 5093 } 5094 5095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5096 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5097 val); 5098 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5099 5100 return 0; 5101 } 5102 5103 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5104 5105 /** 5106 * lpfc_cq_max_proc_limit_store 5107 * 5108 * @dev: class device that is converted into a Scsi_host. 5109 * @attr: device attribute, not used. 5110 * @buf: string with the cq max processing limit of cqes 5111 * @count: unused variable. 5112 * 5113 * Description: 5114 * If val is in a valid range, then set value on each cq 5115 * 5116 * Returns: 5117 * The length of the buf: if successful 5118 * -ERANGE: if val is not in the valid range 5119 * -EINVAL: if bad value format or intended mode is not supported. 5120 **/ 5121 static ssize_t 5122 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5123 const char *buf, size_t count) 5124 { 5125 struct Scsi_Host *shost = class_to_shost(dev); 5126 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5127 struct lpfc_hba *phba = vport->phba; 5128 struct lpfc_queue *eq, *cq; 5129 unsigned long val; 5130 int i; 5131 5132 /* cq_max_proc_limit is only valid for SLI4 */ 5133 if (phba->sli_rev != LPFC_SLI_REV4) 5134 return -EINVAL; 5135 5136 /* Sanity check on user data */ 5137 if (!isdigit(buf[0])) 5138 return -EINVAL; 5139 if (kstrtoul(buf, 0, &val)) 5140 return -EINVAL; 5141 5142 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5143 return -ERANGE; 5144 5145 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5146 5147 /* set the values on the cq's */ 5148 for (i = 0; i < phba->cfg_irq_chann; i++) { 5149 /* Get the EQ corresponding to the IRQ vector */ 5150 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5151 if (!eq) 5152 continue; 5153 5154 list_for_each_entry(cq, &eq->child_list, list) 5155 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5156 cq->entry_count); 5157 } 5158 5159 return strlen(buf); 5160 } 5161 5162 /* 5163 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5164 * itteration of CQ processing. 5165 */ 5166 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5167 module_param(lpfc_cq_max_proc_limit, int, 0644); 5168 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5169 "Set the maximum number CQEs processed in an iteration of " 5170 "CQ processing"); 5171 lpfc_param_show(cq_max_proc_limit) 5172 5173 /* 5174 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5175 * single handler call which should request a polled completion rather 5176 * than re-enabling interrupts. 5177 */ 5178 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5179 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5180 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5181 "CQE Processing Threshold to enable Polling"); 5182 5183 /** 5184 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5185 * @phba: lpfc_hba pointer. 5186 * @val: entry limit 5187 * 5188 * Description: 5189 * If val is in a valid range, then initialize the adapter's maximum 5190 * value. 5191 * 5192 * Returns: 5193 * Always returns 0 for success, even if value not always set to 5194 * requested value. If value out of range or not supported, will fall 5195 * back to default. 5196 **/ 5197 static int 5198 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5199 { 5200 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5201 5202 if (phba->sli_rev != LPFC_SLI_REV4) 5203 return 0; 5204 5205 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5206 phba->cfg_cq_max_proc_limit = val; 5207 return 0; 5208 } 5209 5210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5211 "0371 lpfc_cq_max_proc_limit: %d out of range, using " 5212 "default\n", 5213 phba->cfg_cq_max_proc_limit); 5214 5215 return 0; 5216 } 5217 5218 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5219 5220 /** 5221 * lpfc_fcp_cpu_map_show - Display current driver CPU affinity 5222 * @dev: class converted to a Scsi_host structure. 5223 * @attr: device attribute, not used. 5224 * @buf: on return contains text describing the state of the link. 5225 * 5226 * Returns: size of formatted string. 5227 **/ 5228 static ssize_t 5229 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5230 char *buf) 5231 { 5232 struct Scsi_Host *shost = class_to_shost(dev); 5233 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5234 struct lpfc_hba *phba = vport->phba; 5235 struct lpfc_vector_map_info *cpup; 5236 int len = 0; 5237 5238 if ((phba->sli_rev != LPFC_SLI_REV4) || 5239 (phba->intr_type != MSIX)) 5240 return len; 5241 5242 switch (phba->cfg_fcp_cpu_map) { 5243 case 0: 5244 len += scnprintf(buf + len, PAGE_SIZE-len, 5245 "fcp_cpu_map: No mapping (%d)\n", 5246 phba->cfg_fcp_cpu_map); 5247 return len; 5248 case 1: 5249 len += scnprintf(buf + len, PAGE_SIZE-len, 5250 "fcp_cpu_map: HBA centric mapping (%d): " 5251 "%d of %d CPUs online from %d possible CPUs\n", 5252 phba->cfg_fcp_cpu_map, num_online_cpus(), 5253 num_present_cpus(), 5254 phba->sli4_hba.num_possible_cpu); 5255 break; 5256 } 5257 5258 while (phba->sli4_hba.curr_disp_cpu < 5259 phba->sli4_hba.num_possible_cpu) { 5260 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5261 5262 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5263 len += scnprintf(buf + len, PAGE_SIZE - len, 5264 "CPU %02d not present\n", 5265 phba->sli4_hba.curr_disp_cpu); 5266 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5267 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5268 len += scnprintf( 5269 buf + len, PAGE_SIZE - len, 5270 "CPU %02d hdwq None " 5271 "physid %d coreid %d ht %d ua %d\n", 5272 phba->sli4_hba.curr_disp_cpu, 5273 cpup->phys_id, cpup->core_id, 5274 (cpup->flag & LPFC_CPU_MAP_HYPER), 5275 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5276 else 5277 len += scnprintf( 5278 buf + len, PAGE_SIZE - len, 5279 "CPU %02d EQ None hdwq %04d " 5280 "physid %d coreid %d ht %d ua %d\n", 5281 phba->sli4_hba.curr_disp_cpu, 5282 cpup->hdwq, cpup->phys_id, 5283 cpup->core_id, 5284 (cpup->flag & LPFC_CPU_MAP_HYPER), 5285 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5286 } else { 5287 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5288 len += scnprintf( 5289 buf + len, PAGE_SIZE - len, 5290 "CPU %02d hdwq None " 5291 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5292 phba->sli4_hba.curr_disp_cpu, 5293 cpup->phys_id, 5294 cpup->core_id, 5295 (cpup->flag & LPFC_CPU_MAP_HYPER), 5296 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5297 lpfc_get_irq(cpup->eq)); 5298 else 5299 len += scnprintf( 5300 buf + len, PAGE_SIZE - len, 5301 "CPU %02d EQ %04d hdwq %04d " 5302 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5303 phba->sli4_hba.curr_disp_cpu, 5304 cpup->eq, cpup->hdwq, cpup->phys_id, 5305 cpup->core_id, 5306 (cpup->flag & LPFC_CPU_MAP_HYPER), 5307 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5308 lpfc_get_irq(cpup->eq)); 5309 } 5310 5311 phba->sli4_hba.curr_disp_cpu++; 5312 5313 /* display max number of CPUs keeping some margin */ 5314 if (phba->sli4_hba.curr_disp_cpu < 5315 phba->sli4_hba.num_possible_cpu && 5316 (len >= (PAGE_SIZE - 64))) { 5317 len += scnprintf(buf + len, 5318 PAGE_SIZE - len, "more...\n"); 5319 break; 5320 } 5321 } 5322 5323 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5324 phba->sli4_hba.curr_disp_cpu = 0; 5325 5326 return len; 5327 } 5328 5329 /** 5330 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5331 * @dev: class device that is converted into a Scsi_host. 5332 * @attr: device attribute, not used. 5333 * @buf: one or more lpfc_polling_flags values. 5334 * @count: not used. 5335 * 5336 * Returns: 5337 * -EINVAL - Not implemented yet. 5338 **/ 5339 static ssize_t 5340 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5341 const char *buf, size_t count) 5342 { 5343 return -EINVAL; 5344 } 5345 5346 /* 5347 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5348 # for the HBA. 5349 # 5350 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5351 # 0 - Do not affinitze IRQ vectors 5352 # 1 - Affintize HBA vectors with respect to each HBA 5353 # (start with CPU0 for each HBA) 5354 # This also defines how Hardware Queues are mapped to specific CPUs. 5355 */ 5356 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5357 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5358 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5359 "Defines how to map CPUs to IRQ vectors per HBA"); 5360 5361 /** 5362 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5363 * @phba: lpfc_hba pointer. 5364 * @val: link speed value. 5365 * 5366 * Description: 5367 * If val is in a valid range [0-2], then affinitze the adapter's 5368 * MSIX vectors. 5369 * 5370 * Returns: 5371 * zero if val saved. 5372 * -EINVAL val out of range 5373 **/ 5374 static int 5375 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5376 { 5377 if (phba->sli_rev != LPFC_SLI_REV4) { 5378 phba->cfg_fcp_cpu_map = 0; 5379 return 0; 5380 } 5381 5382 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5383 phba->cfg_fcp_cpu_map = val; 5384 return 0; 5385 } 5386 5387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5388 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5389 "default\n", val); 5390 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5391 5392 return 0; 5393 } 5394 5395 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5396 5397 /* 5398 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5399 # Value range is [2,3]. Default value is 3. 5400 */ 5401 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5402 "Select Fibre Channel class of service for FCP sequences"); 5403 5404 /* 5405 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5406 # is [0,1]. Default value is 0. 5407 */ 5408 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5409 "Use ADISC on rediscovery to authenticate FCP devices"); 5410 5411 /* 5412 # lpfc_first_burst_size: First burst size to use on the NPorts 5413 # that support first burst. 5414 # Value range is [0,65536]. Default value is 0. 5415 */ 5416 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5417 "First burst size for Targets that support first burst"); 5418 5419 /* 5420 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5421 * When the driver is configured as an NVME target, this value is 5422 * communicated to the NVME initiator in the PRLI response. It is 5423 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5424 * parameters are set and the target is sending the PRLI RSP. 5425 * Parameter supported on physical port only - no NPIV support. 5426 * Value range is [0,65536]. Default value is 0. 5427 */ 5428 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5429 "NVME Target mode first burst size in 512B increments."); 5430 5431 /* 5432 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5433 * For the Initiator (I), enabling this parameter means that an NVMET 5434 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5435 * processed by the initiator for subsequent NVME FCP IO. 5436 * Currently, this feature is not supported on the NVME target 5437 * Value range is [0,1]. Default value is 0 (disabled). 5438 */ 5439 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5440 "Enable First Burst feature for NVME Initiator."); 5441 5442 /* 5443 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5444 # depth. Default value is 0. When the value of this parameter is zero the 5445 # SCSI command completion time is not used for controlling I/O queue depth. When 5446 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5447 # to limit the I/O completion time to the parameter value. 5448 # The value is set in milliseconds. 5449 */ 5450 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5451 "Use command completion time to control queue depth"); 5452 5453 lpfc_vport_param_show(max_scsicmpl_time); 5454 static int 5455 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5456 { 5457 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5458 struct lpfc_nodelist *ndlp, *next_ndlp; 5459 5460 if (val == vport->cfg_max_scsicmpl_time) 5461 return 0; 5462 if ((val < 0) || (val > 60000)) 5463 return -EINVAL; 5464 vport->cfg_max_scsicmpl_time = val; 5465 5466 spin_lock_irq(shost->host_lock); 5467 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5468 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5469 continue; 5470 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5471 } 5472 spin_unlock_irq(shost->host_lock); 5473 return 0; 5474 } 5475 lpfc_vport_param_store(max_scsicmpl_time); 5476 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5477 5478 /* 5479 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5480 # range is [0,1]. Default value is 0. 5481 */ 5482 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5483 5484 /* 5485 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5486 # range is [0,1]. Default value is 1. 5487 */ 5488 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5489 5490 /* 5491 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5492 * range is [0,1]. Default value is 0. 5493 * For [0], FCP commands are issued to Work Queues based on upper layer 5494 * hardware queue index. 5495 * For [1], FCP commands are issued to a Work Queue associated with the 5496 * current CPU. 5497 * 5498 * LPFC_FCP_SCHED_BY_HDWQ == 0 5499 * LPFC_FCP_SCHED_BY_CPU == 1 5500 * 5501 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5502 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5503 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5504 * through WQs will be used. 5505 */ 5506 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5507 LPFC_FCP_SCHED_BY_HDWQ, 5508 LPFC_FCP_SCHED_BY_CPU, 5509 "Determine scheduling algorithm for " 5510 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5511 5512 /* 5513 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5514 * range is [0,1]. Default value is 0. 5515 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5516 * For [1], GID_PT is used for NameServer queries after RSCN 5517 * 5518 */ 5519 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5520 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5521 "Determine algorithm NameServer queries after RSCN " 5522 "[0] - GID_FT, [1] - GID_PT"); 5523 5524 /* 5525 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5526 # range is [0,1]. Default value is 0. 5527 # For [0], bus reset issues target reset to ALL devices 5528 # For [1], bus reset issues target reset to non-FCP2 devices 5529 */ 5530 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5531 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5532 5533 5534 /* 5535 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5536 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5537 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5538 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5539 # cr_delay is set to 0. 5540 */ 5541 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5542 "interrupt response is generated"); 5543 5544 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5545 "interrupt response is generated"); 5546 5547 /* 5548 # lpfc_multi_ring_support: Determines how many rings to spread available 5549 # cmd/rsp IOCB entries across. 5550 # Value range is [1,2]. Default value is 1. 5551 */ 5552 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5553 "SLI rings to spread IOCB entries across"); 5554 5555 /* 5556 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5557 # identifies what rctl value to configure the additional ring for. 5558 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5559 */ 5560 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5561 255, "Identifies RCTL for additional ring configuration"); 5562 5563 /* 5564 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5565 # identifies what type value to configure the additional ring for. 5566 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5567 */ 5568 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5569 255, "Identifies TYPE for additional ring configuration"); 5570 5571 /* 5572 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5573 # 0 = SmartSAN functionality disabled (default) 5574 # 1 = SmartSAN functionality enabled 5575 # This parameter will override the value of lpfc_fdmi_on module parameter. 5576 # Value range is [0,1]. Default value is 0. 5577 */ 5578 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5579 5580 /* 5581 # lpfc_fdmi_on: Controls FDMI support. 5582 # 0 No FDMI support 5583 # 1 Traditional FDMI support (default) 5584 # Traditional FDMI support means the driver will assume FDMI-2 support; 5585 # however, if that fails, it will fallback to FDMI-1. 5586 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5587 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5588 # lpfc_fdmi_on. 5589 # Value range [0,1]. Default value is 1. 5590 */ 5591 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5592 5593 /* 5594 # Specifies the maximum number of ELS cmds we can have outstanding (for 5595 # discovery). Value range is [1,64]. Default value = 32. 5596 */ 5597 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5598 "during discovery"); 5599 5600 /* 5601 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5602 # will be scanned by the SCSI midlayer when sequential scanning is 5603 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5604 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5605 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5606 # above. The lpfc driver limits the default value to 255 for two reasons. 5607 # As it bounds the sequential scan loop, scanning for thousands of luns 5608 # on a target can take minutes of wall clock time. Additionally, 5609 # there are FC targets, such as JBODs, that only recognize 8-bits of 5610 # LUN ID. When they receive a value greater than 8 bits, they chop off 5611 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5612 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5613 # valid responses at each of the LUN IDs, to believe there are multiple 5614 # devices present, when in fact, there is only 1. 5615 # A customer that is aware of their target behaviors, and the results as 5616 # indicated above, is welcome to increase the lpfc_max_luns value. 5617 # As mentioned, this value is not used by the lpfc driver, only the 5618 # SCSI midlayer. 5619 # Value range is [0,65535]. Default value is 255. 5620 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5621 */ 5622 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5623 5624 /* 5625 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5626 # Value range is [1,255], default value is 10. 5627 */ 5628 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5629 "Milliseconds driver will wait between polling FCP ring"); 5630 5631 /* 5632 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5633 # to complete in seconds. Value range is [5,180], default value is 60. 5634 */ 5635 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5636 "Maximum time to wait for task management commands to complete"); 5637 /* 5638 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5639 # support this feature 5640 # 0 = MSI disabled 5641 # 1 = MSI enabled 5642 # 2 = MSI-X enabled (default) 5643 # Value range is [0,2]. Default value is 2. 5644 */ 5645 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5646 "MSI-X (2), if possible"); 5647 5648 /* 5649 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5650 * 5651 * 0 = NVME OAS disabled 5652 * 1 = NVME OAS enabled 5653 * 5654 * Value range is [0,1]. Default value is 0. 5655 */ 5656 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5657 "Use OAS bit on NVME IOs"); 5658 5659 /* 5660 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5661 * 5662 * 0 = Put NVME Command in SGL 5663 * 1 = Embed NVME Command in WQE (unless G7) 5664 * 2 = Embed NVME Command in WQE (force) 5665 * 5666 * Value range is [0,2]. Default value is 1. 5667 */ 5668 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5669 "Embed NVME Command in WQE"); 5670 5671 /* 5672 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5673 * the driver will advertise it supports to the SCSI layer. 5674 * 5675 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5676 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5677 * 5678 * Value range is [0,256]. Default value is 8. 5679 */ 5680 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5681 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5682 "Set the number of SCSI Queues advertised"); 5683 5684 /* 5685 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5686 * will advertise it supports to the NVME and SCSI layers. This also 5687 * will map to the number of CQ/WQ pairs the driver will create. 5688 * 5689 * The NVME Layer will try to create this many, plus 1 administrative 5690 * hardware queue. The administrative queue will always map to WQ 0 5691 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5692 * 5693 * 0 = Configure the number of hdw queues to the number of active CPUs. 5694 * 1,256 = Manually specify how many hdw queues to use. 5695 * 5696 * Value range is [0,256]. Default value is 0. 5697 */ 5698 LPFC_ATTR_R(hdw_queue, 5699 LPFC_HBA_HDWQ_DEF, 5700 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5701 "Set the number of I/O Hardware Queues"); 5702 5703 #if IS_ENABLED(CONFIG_X86) 5704 /** 5705 * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on 5706 * irq_chann_mode 5707 * @phba: Pointer to HBA context object. 5708 **/ 5709 static void 5710 lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) 5711 { 5712 unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; 5713 const struct cpumask *sibling_mask; 5714 struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; 5715 5716 cpumask_clear(aff_mask); 5717 5718 if (phba->irq_chann_mode == NUMA_MODE) { 5719 /* Check if we're a NUMA architecture */ 5720 numa_node = dev_to_node(&phba->pcidev->dev); 5721 if (numa_node == NUMA_NO_NODE) { 5722 phba->irq_chann_mode = NORMAL_MODE; 5723 return; 5724 } 5725 } 5726 5727 for_each_possible_cpu(cpu) { 5728 switch (phba->irq_chann_mode) { 5729 case NUMA_MODE: 5730 if (cpu_to_node(cpu) == numa_node) 5731 cpumask_set_cpu(cpu, aff_mask); 5732 break; 5733 case NHT_MODE: 5734 sibling_mask = topology_sibling_cpumask(cpu); 5735 first_cpu = cpumask_first(sibling_mask); 5736 if (first_cpu < nr_cpu_ids) 5737 cpumask_set_cpu(first_cpu, aff_mask); 5738 break; 5739 default: 5740 break; 5741 } 5742 } 5743 } 5744 #endif 5745 5746 static void 5747 lpfc_assign_default_irq_chann(struct lpfc_hba *phba) 5748 { 5749 #if IS_ENABLED(CONFIG_X86) 5750 switch (boot_cpu_data.x86_vendor) { 5751 case X86_VENDOR_AMD: 5752 /* If AMD architecture, then default is NUMA_MODE */ 5753 phba->irq_chann_mode = NUMA_MODE; 5754 break; 5755 case X86_VENDOR_INTEL: 5756 /* If Intel architecture, then default is no hyperthread mode */ 5757 phba->irq_chann_mode = NHT_MODE; 5758 break; 5759 default: 5760 phba->irq_chann_mode = NORMAL_MODE; 5761 break; 5762 } 5763 lpfc_cpumask_irq_mode_init(phba); 5764 #else 5765 phba->irq_chann_mode = NORMAL_MODE; 5766 #endif 5767 } 5768 5769 /* 5770 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5771 * for Hardware Queues to utilize. This also will map to the number 5772 * of EQ / MSI-X vectors the driver will create. This should never be 5773 * more than the number of Hardware Queues 5774 * 5775 * 0 = Configure number of IRQ Channels to: 5776 * if AMD architecture, number of CPUs on HBA's NUMA node 5777 * if Intel architecture, number of physical CPUs. 5778 * otherwise, number of active CPUs. 5779 * [1,256] = Manually specify how many IRQ Channels to use. 5780 * 5781 * Value range is [0,256]. Default value is [0]. 5782 */ 5783 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5784 module_param(lpfc_irq_chann, uint, 0444); 5785 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5786 5787 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5788 * @phba: lpfc_hba pointer. 5789 * @val: contains the initial value 5790 * 5791 * Description: 5792 * Validates the initial value is within range and assigns it to the 5793 * adapter. If not in range, an error message is posted and the 5794 * default value is assigned. 5795 * 5796 * Returns: 5797 * zero if value is in range and is set 5798 * -EINVAL if value was out of range 5799 **/ 5800 static int 5801 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5802 { 5803 const struct cpumask *aff_mask; 5804 5805 if (phba->cfg_use_msi != 2) { 5806 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5807 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5808 phba->cfg_use_msi); 5809 phba->irq_chann_mode = NORMAL_MODE; 5810 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5811 return 0; 5812 } 5813 5814 /* Check if default setting was passed */ 5815 if (val == LPFC_IRQ_CHANN_DEF && 5816 phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && 5817 phba->sli_rev == LPFC_SLI_REV4) 5818 lpfc_assign_default_irq_chann(phba); 5819 5820 if (phba->irq_chann_mode != NORMAL_MODE) { 5821 aff_mask = &phba->sli4_hba.irq_aff_mask; 5822 5823 if (cpumask_empty(aff_mask)) { 5824 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5825 "8533 Could not identify CPUS for " 5826 "mode %d, ignoring\n", 5827 phba->irq_chann_mode); 5828 phba->irq_chann_mode = NORMAL_MODE; 5829 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5830 } else { 5831 phba->cfg_irq_chann = cpumask_weight(aff_mask); 5832 5833 /* If no hyperthread mode, then set hdwq count to 5834 * aff_mask weight as well 5835 */ 5836 if (phba->irq_chann_mode == NHT_MODE) 5837 phba->cfg_hdw_queue = phba->cfg_irq_chann; 5838 5839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5840 "8543 lpfc_irq_chann set to %u " 5841 "(mode: %d)\n", phba->cfg_irq_chann, 5842 phba->irq_chann_mode); 5843 } 5844 } else { 5845 if (val > LPFC_IRQ_CHANN_MAX) { 5846 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5847 "8545 lpfc_irq_chann attribute cannot " 5848 "be set to %u, allowed range is " 5849 "[%u,%u]\n", 5850 val, 5851 LPFC_IRQ_CHANN_MIN, 5852 LPFC_IRQ_CHANN_MAX); 5853 phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; 5854 return -EINVAL; 5855 } 5856 if (phba->sli_rev == LPFC_SLI_REV4) { 5857 phba->cfg_irq_chann = val; 5858 } else { 5859 phba->cfg_irq_chann = 2; 5860 phba->cfg_hdw_queue = 1; 5861 } 5862 } 5863 5864 return 0; 5865 } 5866 5867 /** 5868 * lpfc_irq_chann_show - Display value of irq_chann 5869 * @dev: class converted to a Scsi_host structure. 5870 * @attr: device attribute, not used. 5871 * @buf: on return contains a string with the list sizes 5872 * 5873 * Returns: size of formatted string. 5874 **/ 5875 static ssize_t 5876 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5877 char *buf) 5878 { 5879 struct Scsi_Host *shost = class_to_shost(dev); 5880 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5881 struct lpfc_hba *phba = vport->phba; 5882 5883 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5884 } 5885 5886 static DEVICE_ATTR_RO(lpfc_irq_chann); 5887 5888 /* 5889 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5890 # 0 = HBA resets disabled 5891 # 1 = HBA resets enabled (default) 5892 # 2 = HBA reset via PCI bus reset enabled 5893 # Value range is [0,2]. Default value is 1. 5894 */ 5895 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5896 5897 /* 5898 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5899 # 0 = HBA Heartbeat disabled 5900 # 1 = HBA Heartbeat enabled (default) 5901 # Value range is [0,1]. Default value is 1. 5902 */ 5903 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5904 5905 /* 5906 # lpfc_EnableXLane: Enable Express Lane Feature 5907 # 0x0 Express Lane Feature disabled 5908 # 0x1 Express Lane Feature enabled 5909 # Value range is [0,1]. Default value is 0. 5910 */ 5911 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5912 5913 /* 5914 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5915 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5916 # Value range is [0x0,0x7f]. Default value is 0 5917 */ 5918 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5919 5920 /* 5921 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5922 # 0 = BlockGuard disabled (default) 5923 # 1 = BlockGuard enabled 5924 # Value range is [0,1]. Default value is 0. 5925 */ 5926 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5927 5928 /* 5929 # lpfc_prot_mask: 5930 # - Bit mask of host protection capabilities used to register with the 5931 # SCSI mid-layer 5932 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5933 # - Allows you to ultimately specify which profiles to use 5934 # - Default will result in registering capabilities for all profiles. 5935 # - SHOST_DIF_TYPE1_PROTECTION 1 5936 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5937 # - SHOST_DIX_TYPE0_PROTECTION 8 5938 # HBA supports DIX Type 0: Host to HBA protection only 5939 # - SHOST_DIX_TYPE1_PROTECTION 16 5940 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5941 # 5942 */ 5943 LPFC_ATTR(prot_mask, 5944 (SHOST_DIF_TYPE1_PROTECTION | 5945 SHOST_DIX_TYPE0_PROTECTION | 5946 SHOST_DIX_TYPE1_PROTECTION), 5947 0, 5948 (SHOST_DIF_TYPE1_PROTECTION | 5949 SHOST_DIX_TYPE0_PROTECTION | 5950 SHOST_DIX_TYPE1_PROTECTION), 5951 "T10-DIF host protection capabilities mask"); 5952 5953 /* 5954 # lpfc_prot_guard: 5955 # - Bit mask of protection guard types to register with the SCSI mid-layer 5956 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5957 # - Allows you to ultimately specify which profiles to use 5958 # - Default will result in registering capabilities for all guard types 5959 # 5960 */ 5961 LPFC_ATTR(prot_guard, 5962 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5963 "T10-DIF host protection guard type"); 5964 5965 /* 5966 * Delay initial NPort discovery when Clean Address bit is cleared in 5967 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5968 * This parameter can have value 0 or 1. 5969 * When this parameter is set to 0, no delay is added to the initial 5970 * discovery. 5971 * When this parameter is set to non-zero value, initial Nport discovery is 5972 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5973 * accept and FCID/Fabric name/Fabric portname is changed. 5974 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5975 * when Clean Address bit is cleared in FLOGI/FDISC 5976 * accept and FCID/Fabric name/Fabric portname is changed. 5977 * Default value is 0. 5978 */ 5979 LPFC_ATTR(delay_discovery, 0, 0, 1, 5980 "Delay NPort discovery when Clean Address bit is cleared."); 5981 5982 /* 5983 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5984 * This value can be set to values between 64 and 4096. The default value 5985 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5986 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5987 * Because of the additional overhead involved in setting up T10-DIF, 5988 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5989 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5990 */ 5991 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5992 module_param(lpfc_sg_seg_cnt, uint, 0444); 5993 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5994 5995 /** 5996 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5997 * configured for the adapter 5998 * @dev: class converted to a Scsi_host structure. 5999 * @attr: device attribute, not used. 6000 * @buf: on return contains a string with the list sizes 6001 * 6002 * Returns: size of formatted string. 6003 **/ 6004 static ssize_t 6005 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6006 char *buf) 6007 { 6008 struct Scsi_Host *shost = class_to_shost(dev); 6009 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6010 struct lpfc_hba *phba = vport->phba; 6011 int len; 6012 6013 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6014 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6015 6016 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6017 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6018 phba->cfg_nvme_seg_cnt); 6019 return len; 6020 } 6021 6022 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6023 6024 /** 6025 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6026 * @phba: lpfc_hba pointer. 6027 * @val: contains the initial value 6028 * 6029 * Description: 6030 * Validates the initial value is within range and assigns it to the 6031 * adapter. If not in range, an error message is posted and the 6032 * default value is assigned. 6033 * 6034 * Returns: 6035 * zero if value is in range and is set 6036 * -EINVAL if value was out of range 6037 **/ 6038 static int 6039 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6040 { 6041 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6042 phba->cfg_sg_seg_cnt = val; 6043 return 0; 6044 } 6045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6046 "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " 6047 "allowed range is [%d, %d]\n", 6048 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6049 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6050 return -EINVAL; 6051 } 6052 6053 /* 6054 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6055 * 0 = MDS Diagnostics disabled (default) 6056 * 1 = MDS Diagnostics enabled 6057 * Value range is [0,1]. Default value is 0. 6058 */ 6059 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6060 6061 /* 6062 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6063 * 0 = Disable firmware logging (default) 6064 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6065 * Value range [0..4]. Default value is 0 6066 */ 6067 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6068 lpfc_param_show(ras_fwlog_buffsize); 6069 6070 static ssize_t 6071 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6072 { 6073 int ret = 0; 6074 enum ras_state state; 6075 6076 if (!lpfc_rangecheck(val, 0, 4)) 6077 return -EINVAL; 6078 6079 if (phba->cfg_ras_fwlog_buffsize == val) 6080 return 0; 6081 6082 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6083 return -EINVAL; 6084 6085 spin_lock_irq(&phba->hbalock); 6086 state = phba->ras_fwlog.state; 6087 spin_unlock_irq(&phba->hbalock); 6088 6089 if (state == REG_INPROGRESS) { 6090 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6091 "registration is in progress\n"); 6092 return -EBUSY; 6093 } 6094 6095 /* For disable logging: stop the logs and free the DMA. 6096 * For ras_fwlog_buffsize size change we still need to free and 6097 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6098 */ 6099 phba->cfg_ras_fwlog_buffsize = val; 6100 if (state == ACTIVE) { 6101 lpfc_ras_stop_fwlog(phba); 6102 lpfc_sli4_ras_dma_free(phba); 6103 } 6104 6105 lpfc_sli4_ras_init(phba); 6106 if (phba->ras_fwlog.ras_enabled) 6107 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6108 LPFC_RAS_ENABLE_LOGGING); 6109 return ret; 6110 } 6111 6112 lpfc_param_store(ras_fwlog_buffsize); 6113 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6114 6115 /* 6116 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6117 * Valid only if firmware logging is enabled 6118 * 0(Least Verbosity) 4 (most verbosity) 6119 * Value range is [0..4]. Default value is 0 6120 */ 6121 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6122 6123 /* 6124 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6125 * Default function which has RAS support : 0 6126 * Value Range is [0..7]. 6127 * FW logging is a global action and enablement is via a specific 6128 * port. 6129 */ 6130 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6131 6132 /* 6133 * lpfc_enable_bbcr: Enable BB Credit Recovery 6134 * 0 = BB Credit Recovery disabled 6135 * 1 = BB Credit Recovery enabled (default) 6136 * Value range is [0,1]. Default value is 1. 6137 */ 6138 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6139 6140 /* 6141 * lpfc_enable_dpp: Enable DPP on G7 6142 * 0 = DPP on G7 disabled 6143 * 1 = DPP on G7 enabled (default) 6144 * Value range is [0,1]. Default value is 1. 6145 */ 6146 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6147 6148 /* 6149 * lpfc_enable_mi: Enable FDMI MIB 6150 * 0 = disabled 6151 * 1 = enabled (default) 6152 * Value range is [0,1]. 6153 */ 6154 LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); 6155 6156 struct device_attribute *lpfc_hba_attrs[] = { 6157 &dev_attr_nvme_info, 6158 &dev_attr_scsi_stat, 6159 &dev_attr_bg_info, 6160 &dev_attr_bg_guard_err, 6161 &dev_attr_bg_apptag_err, 6162 &dev_attr_bg_reftag_err, 6163 &dev_attr_info, 6164 &dev_attr_serialnum, 6165 &dev_attr_modeldesc, 6166 &dev_attr_modelname, 6167 &dev_attr_programtype, 6168 &dev_attr_portnum, 6169 &dev_attr_fwrev, 6170 &dev_attr_hdw, 6171 &dev_attr_option_rom_version, 6172 &dev_attr_link_state, 6173 &dev_attr_num_discovered_ports, 6174 &dev_attr_menlo_mgmt_mode, 6175 &dev_attr_lpfc_drvr_version, 6176 &dev_attr_lpfc_enable_fip, 6177 &dev_attr_lpfc_temp_sensor, 6178 &dev_attr_lpfc_log_verbose, 6179 &dev_attr_lpfc_lun_queue_depth, 6180 &dev_attr_lpfc_tgt_queue_depth, 6181 &dev_attr_lpfc_hba_queue_depth, 6182 &dev_attr_lpfc_peer_port_login, 6183 &dev_attr_lpfc_nodev_tmo, 6184 &dev_attr_lpfc_devloss_tmo, 6185 &dev_attr_lpfc_enable_fc4_type, 6186 &dev_attr_lpfc_fcp_class, 6187 &dev_attr_lpfc_use_adisc, 6188 &dev_attr_lpfc_first_burst_size, 6189 &dev_attr_lpfc_ack0, 6190 &dev_attr_lpfc_xri_rebalancing, 6191 &dev_attr_lpfc_topology, 6192 &dev_attr_lpfc_scan_down, 6193 &dev_attr_lpfc_link_speed, 6194 &dev_attr_lpfc_fcp_io_sched, 6195 &dev_attr_lpfc_ns_query, 6196 &dev_attr_lpfc_fcp2_no_tgt_reset, 6197 &dev_attr_lpfc_cr_delay, 6198 &dev_attr_lpfc_cr_count, 6199 &dev_attr_lpfc_multi_ring_support, 6200 &dev_attr_lpfc_multi_ring_rctl, 6201 &dev_attr_lpfc_multi_ring_type, 6202 &dev_attr_lpfc_fdmi_on, 6203 &dev_attr_lpfc_enable_SmartSAN, 6204 &dev_attr_lpfc_max_luns, 6205 &dev_attr_lpfc_enable_npiv, 6206 &dev_attr_lpfc_fcf_failover_policy, 6207 &dev_attr_lpfc_enable_rrq, 6208 &dev_attr_nport_evt_cnt, 6209 &dev_attr_board_mode, 6210 &dev_attr_max_vpi, 6211 &dev_attr_used_vpi, 6212 &dev_attr_max_rpi, 6213 &dev_attr_used_rpi, 6214 &dev_attr_max_xri, 6215 &dev_attr_used_xri, 6216 &dev_attr_npiv_info, 6217 &dev_attr_issue_reset, 6218 &dev_attr_lpfc_poll, 6219 &dev_attr_lpfc_poll_tmo, 6220 &dev_attr_lpfc_task_mgmt_tmo, 6221 &dev_attr_lpfc_use_msi, 6222 &dev_attr_lpfc_nvme_oas, 6223 &dev_attr_lpfc_nvme_embed_cmd, 6224 &dev_attr_lpfc_fcp_imax, 6225 &dev_attr_lpfc_force_rscn, 6226 &dev_attr_lpfc_cq_poll_threshold, 6227 &dev_attr_lpfc_cq_max_proc_limit, 6228 &dev_attr_lpfc_fcp_cpu_map, 6229 &dev_attr_lpfc_fcp_mq_threshold, 6230 &dev_attr_lpfc_hdw_queue, 6231 &dev_attr_lpfc_irq_chann, 6232 &dev_attr_lpfc_suppress_rsp, 6233 &dev_attr_lpfc_nvmet_mrq, 6234 &dev_attr_lpfc_nvmet_mrq_post, 6235 &dev_attr_lpfc_nvme_enable_fb, 6236 &dev_attr_lpfc_nvmet_fb_size, 6237 &dev_attr_lpfc_enable_bg, 6238 &dev_attr_lpfc_soft_wwnn, 6239 &dev_attr_lpfc_soft_wwpn, 6240 &dev_attr_lpfc_soft_wwn_enable, 6241 &dev_attr_lpfc_enable_hba_reset, 6242 &dev_attr_lpfc_enable_hba_heartbeat, 6243 &dev_attr_lpfc_EnableXLane, 6244 &dev_attr_lpfc_XLanePriority, 6245 &dev_attr_lpfc_xlane_lun, 6246 &dev_attr_lpfc_xlane_tgt, 6247 &dev_attr_lpfc_xlane_vpt, 6248 &dev_attr_lpfc_xlane_lun_state, 6249 &dev_attr_lpfc_xlane_lun_status, 6250 &dev_attr_lpfc_xlane_priority, 6251 &dev_attr_lpfc_sg_seg_cnt, 6252 &dev_attr_lpfc_max_scsicmpl_time, 6253 &dev_attr_lpfc_stat_data_ctrl, 6254 &dev_attr_lpfc_aer_support, 6255 &dev_attr_lpfc_aer_state_cleanup, 6256 &dev_attr_lpfc_sriov_nr_virtfn, 6257 &dev_attr_lpfc_req_fw_upgrade, 6258 &dev_attr_lpfc_suppress_link_up, 6259 &dev_attr_iocb_hw, 6260 &dev_attr_pls, 6261 &dev_attr_pt, 6262 &dev_attr_txq_hw, 6263 &dev_attr_txcmplq_hw, 6264 &dev_attr_lpfc_sriov_hw_max_virtfn, 6265 &dev_attr_protocol, 6266 &dev_attr_lpfc_xlane_supported, 6267 &dev_attr_lpfc_enable_mds_diags, 6268 &dev_attr_lpfc_ras_fwlog_buffsize, 6269 &dev_attr_lpfc_ras_fwlog_level, 6270 &dev_attr_lpfc_ras_fwlog_func, 6271 &dev_attr_lpfc_enable_bbcr, 6272 &dev_attr_lpfc_enable_dpp, 6273 &dev_attr_lpfc_enable_mi, 6274 NULL, 6275 }; 6276 6277 struct device_attribute *lpfc_vport_attrs[] = { 6278 &dev_attr_info, 6279 &dev_attr_link_state, 6280 &dev_attr_num_discovered_ports, 6281 &dev_attr_lpfc_drvr_version, 6282 &dev_attr_lpfc_log_verbose, 6283 &dev_attr_lpfc_lun_queue_depth, 6284 &dev_attr_lpfc_tgt_queue_depth, 6285 &dev_attr_lpfc_nodev_tmo, 6286 &dev_attr_lpfc_devloss_tmo, 6287 &dev_attr_lpfc_hba_queue_depth, 6288 &dev_attr_lpfc_peer_port_login, 6289 &dev_attr_lpfc_restrict_login, 6290 &dev_attr_lpfc_fcp_class, 6291 &dev_attr_lpfc_use_adisc, 6292 &dev_attr_lpfc_first_burst_size, 6293 &dev_attr_lpfc_max_luns, 6294 &dev_attr_nport_evt_cnt, 6295 &dev_attr_npiv_info, 6296 &dev_attr_lpfc_enable_da_id, 6297 &dev_attr_lpfc_max_scsicmpl_time, 6298 &dev_attr_lpfc_stat_data_ctrl, 6299 &dev_attr_lpfc_static_vport, 6300 NULL, 6301 }; 6302 6303 /** 6304 * sysfs_ctlreg_write - Write method for writing to ctlreg 6305 * @filp: open sysfs file 6306 * @kobj: kernel kobject that contains the kernel class device. 6307 * @bin_attr: kernel attributes passed to us. 6308 * @buf: contains the data to be written to the adapter IOREG space. 6309 * @off: offset into buffer to beginning of data. 6310 * @count: bytes to transfer. 6311 * 6312 * Description: 6313 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6314 * Uses the adapter io control registers to send buf contents to the adapter. 6315 * 6316 * Returns: 6317 * -ERANGE off and count combo out of range 6318 * -EINVAL off, count or buff address invalid 6319 * -EPERM adapter is offline 6320 * value of count, buf contents written 6321 **/ 6322 static ssize_t 6323 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6324 struct bin_attribute *bin_attr, 6325 char *buf, loff_t off, size_t count) 6326 { 6327 size_t buf_off; 6328 struct device *dev = container_of(kobj, struct device, kobj); 6329 struct Scsi_Host *shost = class_to_shost(dev); 6330 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6331 struct lpfc_hba *phba = vport->phba; 6332 6333 if (phba->sli_rev >= LPFC_SLI_REV4) 6334 return -EPERM; 6335 6336 if ((off + count) > FF_REG_AREA_SIZE) 6337 return -ERANGE; 6338 6339 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6340 return 0; 6341 6342 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6343 return -EINVAL; 6344 6345 /* This is to protect HBA registers from accidental writes. */ 6346 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6347 return -EINVAL; 6348 6349 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6350 return -EPERM; 6351 6352 spin_lock_irq(&phba->hbalock); 6353 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6354 buf_off += sizeof(uint32_t)) 6355 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6356 phba->ctrl_regs_memmap_p + off + buf_off); 6357 6358 spin_unlock_irq(&phba->hbalock); 6359 6360 return count; 6361 } 6362 6363 /** 6364 * sysfs_ctlreg_read - Read method for reading from ctlreg 6365 * @filp: open sysfs file 6366 * @kobj: kernel kobject that contains the kernel class device. 6367 * @bin_attr: kernel attributes passed to us. 6368 * @buf: if successful contains the data from the adapter IOREG space. 6369 * @off: offset into buffer to beginning of data. 6370 * @count: bytes to transfer. 6371 * 6372 * Description: 6373 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6374 * Uses the adapter io control registers to read data into buf. 6375 * 6376 * Returns: 6377 * -ERANGE off and count combo out of range 6378 * -EINVAL off, count or buff address invalid 6379 * value of count, buf contents read 6380 **/ 6381 static ssize_t 6382 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6383 struct bin_attribute *bin_attr, 6384 char *buf, loff_t off, size_t count) 6385 { 6386 size_t buf_off; 6387 uint32_t * tmp_ptr; 6388 struct device *dev = container_of(kobj, struct device, kobj); 6389 struct Scsi_Host *shost = class_to_shost(dev); 6390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6391 struct lpfc_hba *phba = vport->phba; 6392 6393 if (phba->sli_rev >= LPFC_SLI_REV4) 6394 return -EPERM; 6395 6396 if (off > FF_REG_AREA_SIZE) 6397 return -ERANGE; 6398 6399 if ((off + count) > FF_REG_AREA_SIZE) 6400 count = FF_REG_AREA_SIZE - off; 6401 6402 if (count == 0) return 0; 6403 6404 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6405 return -EINVAL; 6406 6407 spin_lock_irq(&phba->hbalock); 6408 6409 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6410 tmp_ptr = (uint32_t *)(buf + buf_off); 6411 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6412 } 6413 6414 spin_unlock_irq(&phba->hbalock); 6415 6416 return count; 6417 } 6418 6419 static struct bin_attribute sysfs_ctlreg_attr = { 6420 .attr = { 6421 .name = "ctlreg", 6422 .mode = S_IRUSR | S_IWUSR, 6423 }, 6424 .size = 256, 6425 .read = sysfs_ctlreg_read, 6426 .write = sysfs_ctlreg_write, 6427 }; 6428 6429 /** 6430 * sysfs_mbox_write - Write method for writing information via mbox 6431 * @filp: open sysfs file 6432 * @kobj: kernel kobject that contains the kernel class device. 6433 * @bin_attr: kernel attributes passed to us. 6434 * @buf: contains the data to be written to sysfs mbox. 6435 * @off: offset into buffer to beginning of data. 6436 * @count: bytes to transfer. 6437 * 6438 * Description: 6439 * Deprecated function. All mailbox access from user space is performed via the 6440 * bsg interface. 6441 * 6442 * Returns: 6443 * -EPERM operation not permitted 6444 **/ 6445 static ssize_t 6446 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6447 struct bin_attribute *bin_attr, 6448 char *buf, loff_t off, size_t count) 6449 { 6450 return -EPERM; 6451 } 6452 6453 /** 6454 * sysfs_mbox_read - Read method for reading information via mbox 6455 * @filp: open sysfs file 6456 * @kobj: kernel kobject that contains the kernel class device. 6457 * @bin_attr: kernel attributes passed to us. 6458 * @buf: contains the data to be read from sysfs mbox. 6459 * @off: offset into buffer to beginning of data. 6460 * @count: bytes to transfer. 6461 * 6462 * Description: 6463 * Deprecated function. All mailbox access from user space is performed via the 6464 * bsg interface. 6465 * 6466 * Returns: 6467 * -EPERM operation not permitted 6468 **/ 6469 static ssize_t 6470 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6471 struct bin_attribute *bin_attr, 6472 char *buf, loff_t off, size_t count) 6473 { 6474 return -EPERM; 6475 } 6476 6477 static struct bin_attribute sysfs_mbox_attr = { 6478 .attr = { 6479 .name = "mbox", 6480 .mode = S_IRUSR | S_IWUSR, 6481 }, 6482 .size = MAILBOX_SYSFS_MAX, 6483 .read = sysfs_mbox_read, 6484 .write = sysfs_mbox_write, 6485 }; 6486 6487 /** 6488 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6489 * @vport: address of lpfc vport structure. 6490 * 6491 * Return codes: 6492 * zero on success 6493 * error return code from sysfs_create_bin_file() 6494 **/ 6495 int 6496 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6497 { 6498 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6499 int error; 6500 6501 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6502 &sysfs_drvr_stat_data_attr); 6503 6504 /* Virtual ports do not need ctrl_reg and mbox */ 6505 if (error || vport->port_type == LPFC_NPIV_PORT) 6506 goto out; 6507 6508 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6509 &sysfs_ctlreg_attr); 6510 if (error) 6511 goto out_remove_stat_attr; 6512 6513 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6514 &sysfs_mbox_attr); 6515 if (error) 6516 goto out_remove_ctlreg_attr; 6517 6518 return 0; 6519 out_remove_ctlreg_attr: 6520 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6521 out_remove_stat_attr: 6522 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6523 &sysfs_drvr_stat_data_attr); 6524 out: 6525 return error; 6526 } 6527 6528 /** 6529 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6530 * @vport: address of lpfc vport structure. 6531 **/ 6532 void 6533 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6534 { 6535 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6536 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6537 &sysfs_drvr_stat_data_attr); 6538 /* Virtual ports do not need ctrl_reg and mbox */ 6539 if (vport->port_type == LPFC_NPIV_PORT) 6540 return; 6541 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6542 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6543 } 6544 6545 /* 6546 * Dynamic FC Host Attributes Support 6547 */ 6548 6549 /** 6550 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6551 * @shost: kernel scsi host pointer. 6552 **/ 6553 static void 6554 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6555 { 6556 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6557 6558 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6559 sizeof fc_host_symbolic_name(shost)); 6560 } 6561 6562 /** 6563 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6564 * @shost: kernel scsi host pointer. 6565 **/ 6566 static void 6567 lpfc_get_host_port_id(struct Scsi_Host *shost) 6568 { 6569 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6570 6571 /* note: fc_myDID already in cpu endianness */ 6572 fc_host_port_id(shost) = vport->fc_myDID; 6573 } 6574 6575 /** 6576 * lpfc_get_host_port_type - Set the value of the scsi host port type 6577 * @shost: kernel scsi host pointer. 6578 **/ 6579 static void 6580 lpfc_get_host_port_type(struct Scsi_Host *shost) 6581 { 6582 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6583 struct lpfc_hba *phba = vport->phba; 6584 6585 spin_lock_irq(shost->host_lock); 6586 6587 if (vport->port_type == LPFC_NPIV_PORT) { 6588 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6589 } else if (lpfc_is_link_up(phba)) { 6590 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6591 if (vport->fc_flag & FC_PUBLIC_LOOP) 6592 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6593 else 6594 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6595 } else { 6596 if (vport->fc_flag & FC_FABRIC) 6597 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6598 else 6599 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6600 } 6601 } else 6602 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6603 6604 spin_unlock_irq(shost->host_lock); 6605 } 6606 6607 /** 6608 * lpfc_get_host_port_state - Set the value of the scsi host port state 6609 * @shost: kernel scsi host pointer. 6610 **/ 6611 static void 6612 lpfc_get_host_port_state(struct Scsi_Host *shost) 6613 { 6614 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6615 struct lpfc_hba *phba = vport->phba; 6616 6617 spin_lock_irq(shost->host_lock); 6618 6619 if (vport->fc_flag & FC_OFFLINE_MODE) 6620 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6621 else { 6622 switch (phba->link_state) { 6623 case LPFC_LINK_UNKNOWN: 6624 case LPFC_LINK_DOWN: 6625 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6626 break; 6627 case LPFC_LINK_UP: 6628 case LPFC_CLEAR_LA: 6629 case LPFC_HBA_READY: 6630 /* Links up, reports port state accordingly */ 6631 if (vport->port_state < LPFC_VPORT_READY) 6632 fc_host_port_state(shost) = 6633 FC_PORTSTATE_BYPASSED; 6634 else 6635 fc_host_port_state(shost) = 6636 FC_PORTSTATE_ONLINE; 6637 break; 6638 case LPFC_HBA_ERROR: 6639 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6640 break; 6641 default: 6642 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6643 break; 6644 } 6645 } 6646 6647 spin_unlock_irq(shost->host_lock); 6648 } 6649 6650 /** 6651 * lpfc_get_host_speed - Set the value of the scsi host speed 6652 * @shost: kernel scsi host pointer. 6653 **/ 6654 static void 6655 lpfc_get_host_speed(struct Scsi_Host *shost) 6656 { 6657 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6658 struct lpfc_hba *phba = vport->phba; 6659 6660 spin_lock_irq(shost->host_lock); 6661 6662 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6663 switch(phba->fc_linkspeed) { 6664 case LPFC_LINK_SPEED_1GHZ: 6665 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6666 break; 6667 case LPFC_LINK_SPEED_2GHZ: 6668 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6669 break; 6670 case LPFC_LINK_SPEED_4GHZ: 6671 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6672 break; 6673 case LPFC_LINK_SPEED_8GHZ: 6674 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6675 break; 6676 case LPFC_LINK_SPEED_10GHZ: 6677 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6678 break; 6679 case LPFC_LINK_SPEED_16GHZ: 6680 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6681 break; 6682 case LPFC_LINK_SPEED_32GHZ: 6683 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6684 break; 6685 case LPFC_LINK_SPEED_64GHZ: 6686 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6687 break; 6688 case LPFC_LINK_SPEED_128GHZ: 6689 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6690 break; 6691 default: 6692 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6693 break; 6694 } 6695 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6696 switch (phba->fc_linkspeed) { 6697 case LPFC_ASYNC_LINK_SPEED_1GBPS: 6698 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6699 break; 6700 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6701 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6702 break; 6703 case LPFC_ASYNC_LINK_SPEED_20GBPS: 6704 fc_host_speed(shost) = FC_PORTSPEED_20GBIT; 6705 break; 6706 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6707 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6708 break; 6709 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6710 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6711 break; 6712 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6713 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6714 break; 6715 default: 6716 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6717 break; 6718 } 6719 } else 6720 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6721 6722 spin_unlock_irq(shost->host_lock); 6723 } 6724 6725 /** 6726 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6727 * @shost: kernel scsi host pointer. 6728 **/ 6729 static void 6730 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6731 { 6732 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6733 struct lpfc_hba *phba = vport->phba; 6734 u64 node_name; 6735 6736 spin_lock_irq(shost->host_lock); 6737 6738 if ((vport->port_state > LPFC_FLOGI) && 6739 ((vport->fc_flag & FC_FABRIC) || 6740 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6741 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6742 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6743 else 6744 /* fabric is local port if there is no F/FL_Port */ 6745 node_name = 0; 6746 6747 spin_unlock_irq(shost->host_lock); 6748 6749 fc_host_fabric_name(shost) = node_name; 6750 } 6751 6752 /** 6753 * lpfc_get_stats - Return statistical information about the adapter 6754 * @shost: kernel scsi host pointer. 6755 * 6756 * Notes: 6757 * NULL on error for link down, no mbox pool, sli2 active, 6758 * management not allowed, memory allocation error, or mbox error. 6759 * 6760 * Returns: 6761 * NULL for error 6762 * address of the adapter host statistics 6763 **/ 6764 static struct fc_host_statistics * 6765 lpfc_get_stats(struct Scsi_Host *shost) 6766 { 6767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6768 struct lpfc_hba *phba = vport->phba; 6769 struct lpfc_sli *psli = &phba->sli; 6770 struct fc_host_statistics *hs = &phba->link_stats; 6771 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6772 LPFC_MBOXQ_t *pmboxq; 6773 MAILBOX_t *pmb; 6774 int rc = 0; 6775 6776 /* 6777 * prevent udev from issuing mailbox commands until the port is 6778 * configured. 6779 */ 6780 if (phba->link_state < LPFC_LINK_DOWN || 6781 !phba->mbox_mem_pool || 6782 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6783 return NULL; 6784 6785 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6786 return NULL; 6787 6788 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6789 if (!pmboxq) 6790 return NULL; 6791 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6792 6793 pmb = &pmboxq->u.mb; 6794 pmb->mbxCommand = MBX_READ_STATUS; 6795 pmb->mbxOwner = OWN_HOST; 6796 pmboxq->ctx_buf = NULL; 6797 pmboxq->vport = vport; 6798 6799 if (vport->fc_flag & FC_OFFLINE_MODE) { 6800 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6801 if (rc != MBX_SUCCESS) { 6802 mempool_free(pmboxq, phba->mbox_mem_pool); 6803 return NULL; 6804 } 6805 } else { 6806 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6807 if (rc != MBX_SUCCESS) { 6808 if (rc != MBX_TIMEOUT) 6809 mempool_free(pmboxq, phba->mbox_mem_pool); 6810 return NULL; 6811 } 6812 } 6813 6814 memset(hs, 0, sizeof (struct fc_host_statistics)); 6815 6816 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6817 /* 6818 * The MBX_READ_STATUS returns tx_k_bytes which has to 6819 * converted to words 6820 */ 6821 hs->tx_words = (uint64_t) 6822 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6823 * (uint64_t)256); 6824 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6825 hs->rx_words = (uint64_t) 6826 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6827 * (uint64_t)256); 6828 6829 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6830 pmb->mbxCommand = MBX_READ_LNK_STAT; 6831 pmb->mbxOwner = OWN_HOST; 6832 pmboxq->ctx_buf = NULL; 6833 pmboxq->vport = vport; 6834 6835 if (vport->fc_flag & FC_OFFLINE_MODE) { 6836 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6837 if (rc != MBX_SUCCESS) { 6838 mempool_free(pmboxq, phba->mbox_mem_pool); 6839 return NULL; 6840 } 6841 } else { 6842 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6843 if (rc != MBX_SUCCESS) { 6844 if (rc != MBX_TIMEOUT) 6845 mempool_free(pmboxq, phba->mbox_mem_pool); 6846 return NULL; 6847 } 6848 } 6849 6850 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6851 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6852 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6853 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6854 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6855 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6856 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6857 6858 hs->link_failure_count -= lso->link_failure_count; 6859 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6860 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6861 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6862 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6863 hs->invalid_crc_count -= lso->invalid_crc_count; 6864 hs->error_frames -= lso->error_frames; 6865 6866 if (phba->hba_flag & HBA_FCOE_MODE) { 6867 hs->lip_count = -1; 6868 hs->nos_count = (phba->link_events >> 1); 6869 hs->nos_count -= lso->link_events; 6870 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6871 hs->lip_count = (phba->fc_eventTag >> 1); 6872 hs->lip_count -= lso->link_events; 6873 hs->nos_count = -1; 6874 } else { 6875 hs->lip_count = -1; 6876 hs->nos_count = (phba->fc_eventTag >> 1); 6877 hs->nos_count -= lso->link_events; 6878 } 6879 6880 hs->dumped_frames = -1; 6881 6882 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6883 6884 mempool_free(pmboxq, phba->mbox_mem_pool); 6885 6886 return hs; 6887 } 6888 6889 /** 6890 * lpfc_reset_stats - Copy the adapter link stats information 6891 * @shost: kernel scsi host pointer. 6892 **/ 6893 static void 6894 lpfc_reset_stats(struct Scsi_Host *shost) 6895 { 6896 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6897 struct lpfc_hba *phba = vport->phba; 6898 struct lpfc_sli *psli = &phba->sli; 6899 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6900 LPFC_MBOXQ_t *pmboxq; 6901 MAILBOX_t *pmb; 6902 int rc = 0; 6903 6904 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6905 return; 6906 6907 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6908 if (!pmboxq) 6909 return; 6910 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6911 6912 pmb = &pmboxq->u.mb; 6913 pmb->mbxCommand = MBX_READ_STATUS; 6914 pmb->mbxOwner = OWN_HOST; 6915 pmb->un.varWords[0] = 0x1; /* reset request */ 6916 pmboxq->ctx_buf = NULL; 6917 pmboxq->vport = vport; 6918 6919 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6920 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6921 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6922 if (rc != MBX_SUCCESS) { 6923 mempool_free(pmboxq, phba->mbox_mem_pool); 6924 return; 6925 } 6926 } else { 6927 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6928 if (rc != MBX_SUCCESS) { 6929 if (rc != MBX_TIMEOUT) 6930 mempool_free(pmboxq, phba->mbox_mem_pool); 6931 return; 6932 } 6933 } 6934 6935 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6936 pmb->mbxCommand = MBX_READ_LNK_STAT; 6937 pmb->mbxOwner = OWN_HOST; 6938 pmboxq->ctx_buf = NULL; 6939 pmboxq->vport = vport; 6940 6941 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6942 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { 6943 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6944 if (rc != MBX_SUCCESS) { 6945 mempool_free(pmboxq, phba->mbox_mem_pool); 6946 return; 6947 } 6948 } else { 6949 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6950 if (rc != MBX_SUCCESS) { 6951 if (rc != MBX_TIMEOUT) 6952 mempool_free(pmboxq, phba->mbox_mem_pool); 6953 return; 6954 } 6955 } 6956 6957 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6958 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6959 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6960 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6961 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6962 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6963 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6964 if (phba->hba_flag & HBA_FCOE_MODE) 6965 lso->link_events = (phba->link_events >> 1); 6966 else 6967 lso->link_events = (phba->fc_eventTag >> 1); 6968 6969 psli->stats_start = ktime_get_seconds(); 6970 6971 mempool_free(pmboxq, phba->mbox_mem_pool); 6972 6973 return; 6974 } 6975 6976 /* 6977 * The LPFC driver treats linkdown handling as target loss events so there 6978 * are no sysfs handlers for link_down_tmo. 6979 */ 6980 6981 /** 6982 * lpfc_get_node_by_target - Return the nodelist for a target 6983 * @starget: kernel scsi target pointer. 6984 * 6985 * Returns: 6986 * address of the node list if found 6987 * NULL target not found 6988 **/ 6989 static struct lpfc_nodelist * 6990 lpfc_get_node_by_target(struct scsi_target *starget) 6991 { 6992 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6993 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6994 struct lpfc_nodelist *ndlp; 6995 6996 spin_lock_irq(shost->host_lock); 6997 /* Search for this, mapped, target ID */ 6998 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6999 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && 7000 starget->id == ndlp->nlp_sid) { 7001 spin_unlock_irq(shost->host_lock); 7002 return ndlp; 7003 } 7004 } 7005 spin_unlock_irq(shost->host_lock); 7006 return NULL; 7007 } 7008 7009 /** 7010 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 7011 * @starget: kernel scsi target pointer. 7012 **/ 7013 static void 7014 lpfc_get_starget_port_id(struct scsi_target *starget) 7015 { 7016 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7017 7018 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 7019 } 7020 7021 /** 7022 * lpfc_get_starget_node_name - Set the target node name 7023 * @starget: kernel scsi target pointer. 7024 * 7025 * Description: Set the target node name to the ndlp node name wwn or zero. 7026 **/ 7027 static void 7028 lpfc_get_starget_node_name(struct scsi_target *starget) 7029 { 7030 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7031 7032 fc_starget_node_name(starget) = 7033 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7034 } 7035 7036 /** 7037 * lpfc_get_starget_port_name - Set the target port name 7038 * @starget: kernel scsi target pointer. 7039 * 7040 * Description: set the target port name to the ndlp port name wwn or zero. 7041 **/ 7042 static void 7043 lpfc_get_starget_port_name(struct scsi_target *starget) 7044 { 7045 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7046 7047 fc_starget_port_name(starget) = 7048 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7049 } 7050 7051 /** 7052 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7053 * @rport: fc rport address. 7054 * @timeout: new value for dev loss tmo. 7055 * 7056 * Description: 7057 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7058 * dev_loss_tmo to one. 7059 **/ 7060 static void 7061 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7062 { 7063 struct lpfc_rport_data *rdata = rport->dd_data; 7064 struct lpfc_nodelist *ndlp = rdata->pnode; 7065 #if (IS_ENABLED(CONFIG_NVME_FC)) 7066 struct lpfc_nvme_rport *nrport = NULL; 7067 #endif 7068 7069 if (timeout) 7070 rport->dev_loss_tmo = timeout; 7071 else 7072 rport->dev_loss_tmo = 1; 7073 7074 if (!ndlp) { 7075 dev_info(&rport->dev, "Cannot find remote node to " 7076 "set rport dev loss tmo, port_id x%x\n", 7077 rport->port_id); 7078 return; 7079 } 7080 7081 #if (IS_ENABLED(CONFIG_NVME_FC)) 7082 nrport = lpfc_ndlp_get_nrport(ndlp); 7083 7084 if (nrport && nrport->remoteport) 7085 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7086 rport->dev_loss_tmo); 7087 #endif 7088 } 7089 7090 /* 7091 * lpfc_rport_show_function - Return rport target information 7092 * 7093 * Description: 7094 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7095 * 7096 * lpfc_show_rport_##field: returns the bytes formatted in buf 7097 * @cdev: class converted to an fc_rport. 7098 * @buf: on return contains the target_field or zero. 7099 * 7100 * Returns: size of formatted string. 7101 **/ 7102 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7103 static ssize_t \ 7104 lpfc_show_rport_##field (struct device *dev, \ 7105 struct device_attribute *attr, \ 7106 char *buf) \ 7107 { \ 7108 struct fc_rport *rport = transport_class_to_rport(dev); \ 7109 struct lpfc_rport_data *rdata = rport->hostdata; \ 7110 return scnprintf(buf, sz, format_string, \ 7111 (rdata->target) ? cast rdata->target->field : 0); \ 7112 } 7113 7114 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7115 lpfc_rport_show_function(field, format_string, sz, ) \ 7116 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7117 7118 /** 7119 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7120 * @fc_vport: The fc_vport who's symbolic name has been changed. 7121 * 7122 * Description: 7123 * This function is called by the transport after the @fc_vport's symbolic name 7124 * has been changed. This function re-registers the symbolic name with the 7125 * switch to propagate the change into the fabric if the vport is active. 7126 **/ 7127 static void 7128 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7129 { 7130 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7131 7132 if (vport->port_state == LPFC_VPORT_READY) 7133 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7134 } 7135 7136 /** 7137 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7138 * @phba: Pointer to lpfc_hba struct. 7139 * @verbose: Verbose level to set. 7140 * 7141 * This function is called by the lpfc_get_cfgparam() routine to set the 7142 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7143 * log message according to the module's lpfc_log_verbose parameter setting 7144 * before hba port or vport created. 7145 **/ 7146 static void 7147 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7148 { 7149 phba->cfg_log_verbose = verbose; 7150 } 7151 7152 struct fc_function_template lpfc_transport_functions = { 7153 /* fixed attributes the driver supports */ 7154 .show_host_node_name = 1, 7155 .show_host_port_name = 1, 7156 .show_host_supported_classes = 1, 7157 .show_host_supported_fc4s = 1, 7158 .show_host_supported_speeds = 1, 7159 .show_host_maxframe_size = 1, 7160 7161 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7162 .show_host_symbolic_name = 1, 7163 7164 /* dynamic attributes the driver supports */ 7165 .get_host_port_id = lpfc_get_host_port_id, 7166 .show_host_port_id = 1, 7167 7168 .get_host_port_type = lpfc_get_host_port_type, 7169 .show_host_port_type = 1, 7170 7171 .get_host_port_state = lpfc_get_host_port_state, 7172 .show_host_port_state = 1, 7173 7174 /* active_fc4s is shown but doesn't change (thus no get function) */ 7175 .show_host_active_fc4s = 1, 7176 7177 .get_host_speed = lpfc_get_host_speed, 7178 .show_host_speed = 1, 7179 7180 .get_host_fabric_name = lpfc_get_host_fabric_name, 7181 .show_host_fabric_name = 1, 7182 7183 /* 7184 * The LPFC driver treats linkdown handling as target loss events 7185 * so there are no sysfs handlers for link_down_tmo. 7186 */ 7187 7188 .get_fc_host_stats = lpfc_get_stats, 7189 .reset_fc_host_stats = lpfc_reset_stats, 7190 7191 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7192 .show_rport_maxframe_size = 1, 7193 .show_rport_supported_classes = 1, 7194 7195 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7196 .show_rport_dev_loss_tmo = 1, 7197 7198 .get_starget_port_id = lpfc_get_starget_port_id, 7199 .show_starget_port_id = 1, 7200 7201 .get_starget_node_name = lpfc_get_starget_node_name, 7202 .show_starget_node_name = 1, 7203 7204 .get_starget_port_name = lpfc_get_starget_port_name, 7205 .show_starget_port_name = 1, 7206 7207 .issue_fc_host_lip = lpfc_issue_lip, 7208 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7209 .terminate_rport_io = lpfc_terminate_rport_io, 7210 7211 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7212 7213 .vport_disable = lpfc_vport_disable, 7214 7215 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7216 7217 .bsg_request = lpfc_bsg_request, 7218 .bsg_timeout = lpfc_bsg_timeout, 7219 }; 7220 7221 struct fc_function_template lpfc_vport_transport_functions = { 7222 /* fixed attributes the driver supports */ 7223 .show_host_node_name = 1, 7224 .show_host_port_name = 1, 7225 .show_host_supported_classes = 1, 7226 .show_host_supported_fc4s = 1, 7227 .show_host_supported_speeds = 1, 7228 .show_host_maxframe_size = 1, 7229 7230 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7231 .show_host_symbolic_name = 1, 7232 7233 /* dynamic attributes the driver supports */ 7234 .get_host_port_id = lpfc_get_host_port_id, 7235 .show_host_port_id = 1, 7236 7237 .get_host_port_type = lpfc_get_host_port_type, 7238 .show_host_port_type = 1, 7239 7240 .get_host_port_state = lpfc_get_host_port_state, 7241 .show_host_port_state = 1, 7242 7243 /* active_fc4s is shown but doesn't change (thus no get function) */ 7244 .show_host_active_fc4s = 1, 7245 7246 .get_host_speed = lpfc_get_host_speed, 7247 .show_host_speed = 1, 7248 7249 .get_host_fabric_name = lpfc_get_host_fabric_name, 7250 .show_host_fabric_name = 1, 7251 7252 /* 7253 * The LPFC driver treats linkdown handling as target loss events 7254 * so there are no sysfs handlers for link_down_tmo. 7255 */ 7256 7257 .get_fc_host_stats = lpfc_get_stats, 7258 .reset_fc_host_stats = lpfc_reset_stats, 7259 7260 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7261 .show_rport_maxframe_size = 1, 7262 .show_rport_supported_classes = 1, 7263 7264 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7265 .show_rport_dev_loss_tmo = 1, 7266 7267 .get_starget_port_id = lpfc_get_starget_port_id, 7268 .show_starget_port_id = 1, 7269 7270 .get_starget_node_name = lpfc_get_starget_node_name, 7271 .show_starget_node_name = 1, 7272 7273 .get_starget_port_name = lpfc_get_starget_port_name, 7274 .show_starget_port_name = 1, 7275 7276 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7277 .terminate_rport_io = lpfc_terminate_rport_io, 7278 7279 .vport_disable = lpfc_vport_disable, 7280 7281 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7282 }; 7283 7284 /** 7285 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7286 * Mode 7287 * @phba: lpfc_hba pointer. 7288 **/ 7289 static void 7290 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7291 { 7292 /* If the adapter supports FCoE mode */ 7293 switch (phba->pcidev->device) { 7294 case PCI_DEVICE_ID_SKYHAWK: 7295 case PCI_DEVICE_ID_SKYHAWK_VF: 7296 case PCI_DEVICE_ID_LANCER_FCOE: 7297 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7298 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7299 case PCI_DEVICE_ID_HORNET: 7300 case PCI_DEVICE_ID_TIGERSHARK: 7301 case PCI_DEVICE_ID_TOMCAT: 7302 phba->hba_flag |= HBA_FCOE_MODE; 7303 break; 7304 default: 7305 /* for others, clear the flag */ 7306 phba->hba_flag &= ~HBA_FCOE_MODE; 7307 } 7308 } 7309 7310 /** 7311 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7312 * @phba: lpfc_hba pointer. 7313 **/ 7314 void 7315 lpfc_get_cfgparam(struct lpfc_hba *phba) 7316 { 7317 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7318 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7319 lpfc_ns_query_init(phba, lpfc_ns_query); 7320 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7321 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7322 lpfc_cr_count_init(phba, lpfc_cr_count); 7323 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7324 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7325 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7326 lpfc_ack0_init(phba, lpfc_ack0); 7327 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7328 lpfc_topology_init(phba, lpfc_topology); 7329 lpfc_link_speed_init(phba, lpfc_link_speed); 7330 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7331 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7332 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7333 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7334 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7335 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7336 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7337 lpfc_use_msi_init(phba, lpfc_use_msi); 7338 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7339 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7340 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7341 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7342 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7343 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7344 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7345 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7346 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7347 7348 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7349 if (phba->sli_rev != LPFC_SLI_REV4) 7350 phba->cfg_EnableXLane = 0; 7351 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7352 7353 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7354 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7355 phba->cfg_oas_lun_state = 0; 7356 phba->cfg_oas_lun_status = 0; 7357 phba->cfg_oas_flags = 0; 7358 phba->cfg_oas_priority = 0; 7359 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7360 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7361 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7362 if (phba->sli_rev == LPFC_SLI_REV4) 7363 phba->cfg_poll = 0; 7364 else 7365 phba->cfg_poll = lpfc_poll; 7366 7367 /* Get the function mode */ 7368 lpfc_get_hba_function_mode(phba); 7369 7370 /* BlockGuard allowed for FC only. */ 7371 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7372 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7373 "0581 BlockGuard feature not supported\n"); 7374 /* If set, clear the BlockGuard support param */ 7375 phba->cfg_enable_bg = 0; 7376 } else if (phba->cfg_enable_bg) { 7377 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7378 } 7379 7380 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7381 7382 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7383 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7384 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7385 7386 /* Initialize first burst. Target vs Initiator are different. */ 7387 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7388 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7389 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7390 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7391 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7392 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7393 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7394 lpfc_enable_mi_init(phba, lpfc_enable_mi); 7395 7396 if (phba->sli_rev != LPFC_SLI_REV4) { 7397 /* NVME only supported on SLI4 */ 7398 phba->nvmet_support = 0; 7399 phba->cfg_nvmet_mrq = 0; 7400 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7401 phba->cfg_enable_bbcr = 0; 7402 phba->cfg_xri_rebalancing = 0; 7403 } else { 7404 /* We MUST have FCP support */ 7405 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7406 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7407 } 7408 7409 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7410 7411 phba->cfg_enable_pbde = 0; 7412 7413 /* A value of 0 means use the number of CPUs found in the system */ 7414 if (phba->cfg_hdw_queue == 0) 7415 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7416 if (phba->cfg_irq_chann == 0) 7417 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7418 if (phba->cfg_irq_chann > phba->cfg_hdw_queue && 7419 phba->sli_rev == LPFC_SLI_REV4) 7420 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7421 7422 phba->cfg_soft_wwnn = 0L; 7423 phba->cfg_soft_wwpn = 0L; 7424 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7425 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7426 lpfc_aer_support_init(phba, lpfc_aer_support); 7427 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7428 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7429 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7430 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7431 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7432 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7433 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7434 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7435 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7436 7437 return; 7438 } 7439 7440 /** 7441 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7442 * dependencies between protocols and roles. 7443 * @phba: lpfc_hba pointer. 7444 **/ 7445 void 7446 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7447 { 7448 int logit = 0; 7449 7450 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { 7451 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7452 logit = 1; 7453 } 7454 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { 7455 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7456 logit = 1; 7457 } 7458 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { 7459 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7460 logit = 1; 7461 } 7462 if (logit) 7463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7464 "2006 Reducing Queues - CPU limitation: " 7465 "IRQ %d HDWQ %d\n", 7466 phba->cfg_irq_chann, 7467 phba->cfg_hdw_queue); 7468 7469 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7470 phba->nvmet_support) { 7471 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7472 7473 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7474 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7475 "NVME Target PRLI ACC enable_fb ", 7476 phba->cfg_nvme_enable_fb, 7477 phba->cfg_nvmet_fb_size, 7478 LPFC_NVMET_FB_SZ_MAX); 7479 7480 if (phba->cfg_nvme_enable_fb == 0) 7481 phba->cfg_nvmet_fb_size = 0; 7482 else { 7483 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7484 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7485 } 7486 7487 if (!phba->cfg_nvmet_mrq) 7488 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7489 7490 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7491 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7492 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7493 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7494 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7495 phba->cfg_nvmet_mrq); 7496 } 7497 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7498 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7499 7500 } else { 7501 /* Not NVME Target mode. Turn off Target parameters. */ 7502 phba->nvmet_support = 0; 7503 phba->cfg_nvmet_mrq = 0; 7504 phba->cfg_nvmet_fb_size = 0; 7505 } 7506 } 7507 7508 /** 7509 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7510 * @vport: lpfc_vport pointer. 7511 **/ 7512 void 7513 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7514 { 7515 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7516 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7517 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7518 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7519 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7520 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7521 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7522 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7523 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7524 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7525 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7526 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7527 lpfc_max_luns_init(vport, lpfc_max_luns); 7528 lpfc_scan_down_init(vport, lpfc_scan_down); 7529 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7530 return; 7531 } 7532