1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2020 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/ctype.h> 25 #include <linux/delay.h> 26 #include <linux/pci.h> 27 #include <linux/interrupt.h> 28 #include <linux/module.h> 29 #include <linux/aer.h> 30 #include <linux/gfp.h> 31 #include <linux/kernel.h> 32 33 #include <scsi/scsi.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_host.h> 36 #include <scsi/scsi_tcq.h> 37 #include <scsi/scsi_transport_fc.h> 38 #include <scsi/fc/fc_fs.h> 39 40 #include <linux/nvme-fc-driver.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc.h" 49 #include "lpfc_scsi.h" 50 #include "lpfc_nvme.h" 51 #include "lpfc_nvmet.h" 52 #include "lpfc_logmsg.h" 53 #include "lpfc_version.h" 54 #include "lpfc_compat.h" 55 #include "lpfc_crtn.h" 56 #include "lpfc_vport.h" 57 #include "lpfc_attr.h" 58 59 #define LPFC_DEF_DEVLOSS_TMO 30 60 #define LPFC_MIN_DEVLOSS_TMO 1 61 #define LPFC_MAX_DEVLOSS_TMO 255 62 63 #define LPFC_DEF_MRQ_POST 512 64 #define LPFC_MIN_MRQ_POST 512 65 #define LPFC_MAX_MRQ_POST 2048 66 67 /* 68 * Write key size should be multiple of 4. If write key is changed 69 * make sure that library write key is also changed. 70 */ 71 #define LPFC_REG_WRITE_KEY_SIZE 4 72 #define LPFC_REG_WRITE_KEY "EMLX" 73 74 const char *const trunk_errmsg[] = { /* map errcode */ 75 "", /* There is no such error code at index 0*/ 76 "link negotiated speed does not match existing" 77 " trunk - link was \"low\" speed", 78 "link negotiated speed does not match" 79 " existing trunk - link was \"middle\" speed", 80 "link negotiated speed does not match existing" 81 " trunk - link was \"high\" speed", 82 "Attached to non-trunking port - F_Port", 83 "Attached to non-trunking port - N_Port", 84 "FLOGI response timeout", 85 "non-FLOGI frame received", 86 "Invalid FLOGI response", 87 "Trunking initialization protocol", 88 "Trunk peer device mismatch", 89 }; 90 91 /** 92 * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules 93 * @incr: integer to convert. 94 * @hdw: ascii string holding converted integer plus a string terminator. 95 * 96 * Description: 97 * JEDEC Joint Electron Device Engineering Council. 98 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii 99 * character string. The string is then terminated with a NULL in byte 9. 100 * Hex 0-9 becomes ascii '0' to '9'. 101 * Hex a-f becomes ascii '=' to 'B' capital B. 102 * 103 * Notes: 104 * Coded for 32 bit integers only. 105 **/ 106 static void 107 lpfc_jedec_to_ascii(int incr, char hdw[]) 108 { 109 int i, j; 110 for (i = 0; i < 8; i++) { 111 j = (incr & 0xf); 112 if (j <= 9) 113 hdw[7 - i] = 0x30 + j; 114 else 115 hdw[7 - i] = 0x61 + j - 10; 116 incr = (incr >> 4); 117 } 118 hdw[8] = 0; 119 return; 120 } 121 122 /** 123 * lpfc_drvr_version_show - Return the Emulex driver string with version number 124 * @dev: class unused variable. 125 * @attr: device attribute, not used. 126 * @buf: on return contains the module description text. 127 * 128 * Returns: size of formatted string. 129 **/ 130 static ssize_t 131 lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 132 char *buf) 133 { 134 return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 135 } 136 137 /** 138 * lpfc_enable_fip_show - Return the fip mode of the HBA 139 * @dev: class unused variable. 140 * @attr: device attribute, not used. 141 * @buf: on return contains the module description text. 142 * 143 * Returns: size of formatted string. 144 **/ 145 static ssize_t 146 lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, 147 char *buf) 148 { 149 struct Scsi_Host *shost = class_to_shost(dev); 150 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 151 struct lpfc_hba *phba = vport->phba; 152 153 if (phba->hba_flag & HBA_FIP_SUPPORT) 154 return scnprintf(buf, PAGE_SIZE, "1\n"); 155 else 156 return scnprintf(buf, PAGE_SIZE, "0\n"); 157 } 158 159 static ssize_t 160 lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, 161 char *buf) 162 { 163 struct Scsi_Host *shost = class_to_shost(dev); 164 struct lpfc_vport *vport = shost_priv(shost); 165 struct lpfc_hba *phba = vport->phba; 166 struct lpfc_nvmet_tgtport *tgtp; 167 struct nvme_fc_local_port *localport; 168 struct lpfc_nvme_lport *lport; 169 struct lpfc_nvme_rport *rport; 170 struct lpfc_nodelist *ndlp; 171 struct nvme_fc_remote_port *nrport; 172 struct lpfc_fc4_ctrl_stat *cstat; 173 uint64_t data1, data2, data3; 174 uint64_t totin, totout, tot; 175 char *statep; 176 int i; 177 int len = 0; 178 char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0}; 179 180 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 181 len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); 182 return len; 183 } 184 if (phba->nvmet_support) { 185 if (!phba->targetport) { 186 len = scnprintf(buf, PAGE_SIZE, 187 "NVME Target: x%llx is not allocated\n", 188 wwn_to_u64(vport->fc_portname.u.wwn)); 189 return len; 190 } 191 /* Port state is only one of two values for now. */ 192 if (phba->targetport->port_id) 193 statep = "REGISTERED"; 194 else 195 statep = "INIT"; 196 scnprintf(tmp, sizeof(tmp), 197 "NVME Target Enabled State %s\n", 198 statep); 199 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 200 goto buffer_done; 201 202 scnprintf(tmp, sizeof(tmp), 203 "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", 204 "NVME Target: lpfc", 205 phba->brd_no, 206 wwn_to_u64(vport->fc_portname.u.wwn), 207 wwn_to_u64(vport->fc_nodename.u.wwn), 208 phba->targetport->port_id); 209 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 210 goto buffer_done; 211 212 if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) 213 >= PAGE_SIZE) 214 goto buffer_done; 215 216 tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; 217 scnprintf(tmp, sizeof(tmp), 218 "LS: Rcv %08x Drop %08x Abort %08x\n", 219 atomic_read(&tgtp->rcv_ls_req_in), 220 atomic_read(&tgtp->rcv_ls_req_drop), 221 atomic_read(&tgtp->xmt_ls_abort)); 222 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 223 goto buffer_done; 224 225 if (atomic_read(&tgtp->rcv_ls_req_in) != 226 atomic_read(&tgtp->rcv_ls_req_out)) { 227 scnprintf(tmp, sizeof(tmp), 228 "Rcv LS: in %08x != out %08x\n", 229 atomic_read(&tgtp->rcv_ls_req_in), 230 atomic_read(&tgtp->rcv_ls_req_out)); 231 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 232 goto buffer_done; 233 } 234 235 scnprintf(tmp, sizeof(tmp), 236 "LS: Xmt %08x Drop %08x Cmpl %08x\n", 237 atomic_read(&tgtp->xmt_ls_rsp), 238 atomic_read(&tgtp->xmt_ls_drop), 239 atomic_read(&tgtp->xmt_ls_rsp_cmpl)); 240 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 241 goto buffer_done; 242 243 scnprintf(tmp, sizeof(tmp), 244 "LS: RSP Abort %08x xb %08x Err %08x\n", 245 atomic_read(&tgtp->xmt_ls_rsp_aborted), 246 atomic_read(&tgtp->xmt_ls_rsp_xb_set), 247 atomic_read(&tgtp->xmt_ls_rsp_error)); 248 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 249 goto buffer_done; 250 251 scnprintf(tmp, sizeof(tmp), 252 "FCP: Rcv %08x Defer %08x Release %08x " 253 "Drop %08x\n", 254 atomic_read(&tgtp->rcv_fcp_cmd_in), 255 atomic_read(&tgtp->rcv_fcp_cmd_defer), 256 atomic_read(&tgtp->xmt_fcp_release), 257 atomic_read(&tgtp->rcv_fcp_cmd_drop)); 258 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 259 goto buffer_done; 260 261 if (atomic_read(&tgtp->rcv_fcp_cmd_in) != 262 atomic_read(&tgtp->rcv_fcp_cmd_out)) { 263 scnprintf(tmp, sizeof(tmp), 264 "Rcv FCP: in %08x != out %08x\n", 265 atomic_read(&tgtp->rcv_fcp_cmd_in), 266 atomic_read(&tgtp->rcv_fcp_cmd_out)); 267 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 268 goto buffer_done; 269 } 270 271 scnprintf(tmp, sizeof(tmp), 272 "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " 273 "drop %08x\n", 274 atomic_read(&tgtp->xmt_fcp_read), 275 atomic_read(&tgtp->xmt_fcp_read_rsp), 276 atomic_read(&tgtp->xmt_fcp_write), 277 atomic_read(&tgtp->xmt_fcp_rsp), 278 atomic_read(&tgtp->xmt_fcp_drop)); 279 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 280 goto buffer_done; 281 282 scnprintf(tmp, sizeof(tmp), 283 "FCP Rsp Cmpl: %08x err %08x drop %08x\n", 284 atomic_read(&tgtp->xmt_fcp_rsp_cmpl), 285 atomic_read(&tgtp->xmt_fcp_rsp_error), 286 atomic_read(&tgtp->xmt_fcp_rsp_drop)); 287 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 288 goto buffer_done; 289 290 scnprintf(tmp, sizeof(tmp), 291 "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", 292 atomic_read(&tgtp->xmt_fcp_rsp_aborted), 293 atomic_read(&tgtp->xmt_fcp_rsp_xb_set), 294 atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); 295 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 296 goto buffer_done; 297 298 scnprintf(tmp, sizeof(tmp), 299 "ABORT: Xmt %08x Cmpl %08x\n", 300 atomic_read(&tgtp->xmt_fcp_abort), 301 atomic_read(&tgtp->xmt_fcp_abort_cmpl)); 302 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 303 goto buffer_done; 304 305 scnprintf(tmp, sizeof(tmp), 306 "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", 307 atomic_read(&tgtp->xmt_abort_sol), 308 atomic_read(&tgtp->xmt_abort_unsol), 309 atomic_read(&tgtp->xmt_abort_rsp), 310 atomic_read(&tgtp->xmt_abort_rsp_error)); 311 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 312 goto buffer_done; 313 314 scnprintf(tmp, sizeof(tmp), 315 "DELAY: ctx %08x fod %08x wqfull %08x\n", 316 atomic_read(&tgtp->defer_ctx), 317 atomic_read(&tgtp->defer_fod), 318 atomic_read(&tgtp->defer_wqfull)); 319 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 320 goto buffer_done; 321 322 /* Calculate outstanding IOs */ 323 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 324 tot += atomic_read(&tgtp->xmt_fcp_release); 325 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 326 327 scnprintf(tmp, sizeof(tmp), 328 "IO_CTX: %08x WAIT: cur %08x tot %08x\n" 329 "CTX Outstanding %08llx\n\n", 330 phba->sli4_hba.nvmet_xri_cnt, 331 phba->sli4_hba.nvmet_io_wait_cnt, 332 phba->sli4_hba.nvmet_io_wait_total, 333 tot); 334 strlcat(buf, tmp, PAGE_SIZE); 335 goto buffer_done; 336 } 337 338 localport = vport->localport; 339 if (!localport) { 340 len = scnprintf(buf, PAGE_SIZE, 341 "NVME Initiator x%llx is not allocated\n", 342 wwn_to_u64(vport->fc_portname.u.wwn)); 343 return len; 344 } 345 lport = (struct lpfc_nvme_lport *)localport->private; 346 if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) 347 goto buffer_done; 348 349 scnprintf(tmp, sizeof(tmp), 350 "XRI Dist lpfc%d Total %d IO %d ELS %d\n", 351 phba->brd_no, 352 phba->sli4_hba.max_cfg_param.max_xri, 353 phba->sli4_hba.io_xri_max, 354 lpfc_sli4_get_els_iocb_cnt(phba)); 355 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 356 goto buffer_done; 357 358 /* Port state is only one of two values for now. */ 359 if (localport->port_id) 360 statep = "ONLINE"; 361 else 362 statep = "UNKNOWN "; 363 364 scnprintf(tmp, sizeof(tmp), 365 "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", 366 "NVME LPORT lpfc", 367 phba->brd_no, 368 wwn_to_u64(vport->fc_portname.u.wwn), 369 wwn_to_u64(vport->fc_nodename.u.wwn), 370 localport->port_id, statep); 371 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 372 goto buffer_done; 373 374 spin_lock_irq(shost->host_lock); 375 376 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 377 nrport = NULL; 378 spin_lock(&vport->phba->hbalock); 379 rport = lpfc_ndlp_get_nrport(ndlp); 380 if (rport) 381 nrport = rport->remoteport; 382 spin_unlock(&vport->phba->hbalock); 383 if (!nrport) 384 continue; 385 386 /* Port state is only one of two values for now. */ 387 switch (nrport->port_state) { 388 case FC_OBJSTATE_ONLINE: 389 statep = "ONLINE"; 390 break; 391 case FC_OBJSTATE_UNKNOWN: 392 statep = "UNKNOWN "; 393 break; 394 default: 395 statep = "UNSUPPORTED"; 396 break; 397 } 398 399 /* Tab in to show lport ownership. */ 400 if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) 401 goto unlock_buf_done; 402 if (phba->brd_no >= 10) { 403 if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) 404 goto unlock_buf_done; 405 } 406 407 scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", 408 nrport->port_name); 409 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 410 goto unlock_buf_done; 411 412 scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", 413 nrport->node_name); 414 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 415 goto unlock_buf_done; 416 417 scnprintf(tmp, sizeof(tmp), "DID x%06x ", 418 nrport->port_id); 419 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 420 goto unlock_buf_done; 421 422 /* An NVME rport can have multiple roles. */ 423 if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { 424 if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) 425 goto unlock_buf_done; 426 } 427 if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { 428 if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) 429 goto unlock_buf_done; 430 } 431 if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { 432 if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) 433 goto unlock_buf_done; 434 } 435 if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | 436 FC_PORT_ROLE_NVME_TARGET | 437 FC_PORT_ROLE_NVME_DISCOVERY)) { 438 scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", 439 nrport->port_role); 440 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 441 goto unlock_buf_done; 442 } 443 444 scnprintf(tmp, sizeof(tmp), "%s\n", statep); 445 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 446 goto unlock_buf_done; 447 } 448 spin_unlock_irq(shost->host_lock); 449 450 if (!lport) 451 goto buffer_done; 452 453 if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) 454 goto buffer_done; 455 456 scnprintf(tmp, sizeof(tmp), 457 "LS: Xmt %010x Cmpl %010x Abort %08x\n", 458 atomic_read(&lport->fc4NvmeLsRequests), 459 atomic_read(&lport->fc4NvmeLsCmpls), 460 atomic_read(&lport->xmt_ls_abort)); 461 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 462 goto buffer_done; 463 464 scnprintf(tmp, sizeof(tmp), 465 "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", 466 atomic_read(&lport->xmt_ls_err), 467 atomic_read(&lport->cmpl_ls_xb), 468 atomic_read(&lport->cmpl_ls_err)); 469 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 470 goto buffer_done; 471 472 totin = 0; 473 totout = 0; 474 for (i = 0; i < phba->cfg_hdw_queue; i++) { 475 cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; 476 tot = cstat->io_cmpls; 477 totin += tot; 478 data1 = cstat->input_requests; 479 data2 = cstat->output_requests; 480 data3 = cstat->control_requests; 481 totout += (data1 + data2 + data3); 482 } 483 scnprintf(tmp, sizeof(tmp), 484 "Total FCP Cmpl %016llx Issue %016llx " 485 "OutIO %016llx\n", 486 totin, totout, totout - totin); 487 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 488 goto buffer_done; 489 490 scnprintf(tmp, sizeof(tmp), 491 "\tabort %08x noxri %08x nondlp %08x qdepth %08x " 492 "wqerr %08x err %08x\n", 493 atomic_read(&lport->xmt_fcp_abort), 494 atomic_read(&lport->xmt_fcp_noxri), 495 atomic_read(&lport->xmt_fcp_bad_ndlp), 496 atomic_read(&lport->xmt_fcp_qdepth), 497 atomic_read(&lport->xmt_fcp_err), 498 atomic_read(&lport->xmt_fcp_wqerr)); 499 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 500 goto buffer_done; 501 502 scnprintf(tmp, sizeof(tmp), 503 "FCP CMPL: xb %08x Err %08x\n", 504 atomic_read(&lport->cmpl_fcp_xb), 505 atomic_read(&lport->cmpl_fcp_err)); 506 strlcat(buf, tmp, PAGE_SIZE); 507 508 /* host_lock is already unlocked. */ 509 goto buffer_done; 510 511 unlock_buf_done: 512 spin_unlock_irq(shost->host_lock); 513 514 buffer_done: 515 len = strnlen(buf, PAGE_SIZE); 516 517 if (unlikely(len >= (PAGE_SIZE - 1))) { 518 lpfc_printf_log(phba, KERN_INFO, LOG_NVME, 519 "6314 Catching potential buffer " 520 "overflow > PAGE_SIZE = %lu bytes\n", 521 PAGE_SIZE); 522 strlcpy(buf + PAGE_SIZE - 1 - 523 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1), 524 LPFC_NVME_INFO_MORE_STR, 525 strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1) 526 + 1); 527 } 528 529 return len; 530 } 531 532 static ssize_t 533 lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, 534 char *buf) 535 { 536 struct Scsi_Host *shost = class_to_shost(dev); 537 struct lpfc_vport *vport = shost_priv(shost); 538 struct lpfc_hba *phba = vport->phba; 539 int len; 540 struct lpfc_fc4_ctrl_stat *cstat; 541 u64 data1, data2, data3; 542 u64 tot, totin, totout; 543 int i; 544 char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; 545 546 if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || 547 (phba->sli_rev != LPFC_SLI_REV4)) 548 return 0; 549 550 scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); 551 552 totin = 0; 553 totout = 0; 554 for (i = 0; i < phba->cfg_hdw_queue; i++) { 555 cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; 556 tot = cstat->io_cmpls; 557 totin += tot; 558 data1 = cstat->input_requests; 559 data2 = cstat->output_requests; 560 data3 = cstat->control_requests; 561 totout += (data1 + data2 + data3); 562 563 scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " 564 "IO %016llx ", i, data1, data2, data3); 565 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 566 goto buffer_done; 567 568 scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", 569 tot, ((data1 + data2 + data3) - tot)); 570 if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) 571 goto buffer_done; 572 } 573 scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " 574 "OutIO %016llx\n", totin, totout, totout - totin); 575 strlcat(buf, tmp, PAGE_SIZE); 576 577 buffer_done: 578 len = strnlen(buf, PAGE_SIZE); 579 580 return len; 581 } 582 583 static ssize_t 584 lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, 585 char *buf) 586 { 587 struct Scsi_Host *shost = class_to_shost(dev); 588 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 589 struct lpfc_hba *phba = vport->phba; 590 591 if (phba->cfg_enable_bg) { 592 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 593 return scnprintf(buf, PAGE_SIZE, 594 "BlockGuard Enabled\n"); 595 else 596 return scnprintf(buf, PAGE_SIZE, 597 "BlockGuard Not Supported\n"); 598 } else 599 return scnprintf(buf, PAGE_SIZE, 600 "BlockGuard Disabled\n"); 601 } 602 603 static ssize_t 604 lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, 605 char *buf) 606 { 607 struct Scsi_Host *shost = class_to_shost(dev); 608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 609 struct lpfc_hba *phba = vport->phba; 610 611 return scnprintf(buf, PAGE_SIZE, "%llu\n", 612 (unsigned long long)phba->bg_guard_err_cnt); 613 } 614 615 static ssize_t 616 lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, 617 char *buf) 618 { 619 struct Scsi_Host *shost = class_to_shost(dev); 620 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 621 struct lpfc_hba *phba = vport->phba; 622 623 return scnprintf(buf, PAGE_SIZE, "%llu\n", 624 (unsigned long long)phba->bg_apptag_err_cnt); 625 } 626 627 static ssize_t 628 lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, 629 char *buf) 630 { 631 struct Scsi_Host *shost = class_to_shost(dev); 632 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 633 struct lpfc_hba *phba = vport->phba; 634 635 return scnprintf(buf, PAGE_SIZE, "%llu\n", 636 (unsigned long long)phba->bg_reftag_err_cnt); 637 } 638 639 /** 640 * lpfc_info_show - Return some pci info about the host in ascii 641 * @dev: class converted to a Scsi_host structure. 642 * @attr: device attribute, not used. 643 * @buf: on return contains the formatted text from lpfc_info(). 644 * 645 * Returns: size of formatted string. 646 **/ 647 static ssize_t 648 lpfc_info_show(struct device *dev, struct device_attribute *attr, 649 char *buf) 650 { 651 struct Scsi_Host *host = class_to_shost(dev); 652 653 return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); 654 } 655 656 /** 657 * lpfc_serialnum_show - Return the hba serial number in ascii 658 * @dev: class converted to a Scsi_host structure. 659 * @attr: device attribute, not used. 660 * @buf: on return contains the formatted text serial number. 661 * 662 * Returns: size of formatted string. 663 **/ 664 static ssize_t 665 lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 666 char *buf) 667 { 668 struct Scsi_Host *shost = class_to_shost(dev); 669 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 670 struct lpfc_hba *phba = vport->phba; 671 672 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); 673 } 674 675 /** 676 * lpfc_temp_sensor_show - Return the temperature sensor level 677 * @dev: class converted to a Scsi_host structure. 678 * @attr: device attribute, not used. 679 * @buf: on return contains the formatted support level. 680 * 681 * Description: 682 * Returns a number indicating the temperature sensor level currently 683 * supported, zero or one in ascii. 684 * 685 * Returns: size of formatted string. 686 **/ 687 static ssize_t 688 lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 689 char *buf) 690 { 691 struct Scsi_Host *shost = class_to_shost(dev); 692 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 693 struct lpfc_hba *phba = vport->phba; 694 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); 695 } 696 697 /** 698 * lpfc_modeldesc_show - Return the model description of the hba 699 * @dev: class converted to a Scsi_host structure. 700 * @attr: device attribute, not used. 701 * @buf: on return contains the scsi vpd model description. 702 * 703 * Returns: size of formatted string. 704 **/ 705 static ssize_t 706 lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 707 char *buf) 708 { 709 struct Scsi_Host *shost = class_to_shost(dev); 710 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 711 struct lpfc_hba *phba = vport->phba; 712 713 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); 714 } 715 716 /** 717 * lpfc_modelname_show - Return the model name of the hba 718 * @dev: class converted to a Scsi_host structure. 719 * @attr: device attribute, not used. 720 * @buf: on return contains the scsi vpd model name. 721 * 722 * Returns: size of formatted string. 723 **/ 724 static ssize_t 725 lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 726 char *buf) 727 { 728 struct Scsi_Host *shost = class_to_shost(dev); 729 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 730 struct lpfc_hba *phba = vport->phba; 731 732 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); 733 } 734 735 /** 736 * lpfc_programtype_show - Return the program type of the hba 737 * @dev: class converted to a Scsi_host structure. 738 * @attr: device attribute, not used. 739 * @buf: on return contains the scsi vpd program type. 740 * 741 * Returns: size of formatted string. 742 **/ 743 static ssize_t 744 lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 745 char *buf) 746 { 747 struct Scsi_Host *shost = class_to_shost(dev); 748 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 749 struct lpfc_hba *phba = vport->phba; 750 751 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); 752 } 753 754 /** 755 * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag 756 * @dev: class converted to a Scsi_host structure. 757 * @attr: device attribute, not used. 758 * @buf: on return contains the Menlo Maintenance sli flag. 759 * 760 * Returns: size of formatted string. 761 **/ 762 static ssize_t 763 lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) 764 { 765 struct Scsi_Host *shost = class_to_shost(dev); 766 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 767 struct lpfc_hba *phba = vport->phba; 768 769 return scnprintf(buf, PAGE_SIZE, "%d\n", 770 (phba->sli.sli_flag & LPFC_MENLO_MAINT)); 771 } 772 773 /** 774 * lpfc_vportnum_show - Return the port number in ascii of the hba 775 * @dev: class converted to a Scsi_host structure. 776 * @attr: device attribute, not used. 777 * @buf: on return contains scsi vpd program type. 778 * 779 * Returns: size of formatted string. 780 **/ 781 static ssize_t 782 lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 783 char *buf) 784 { 785 struct Scsi_Host *shost = class_to_shost(dev); 786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 787 struct lpfc_hba *phba = vport->phba; 788 789 return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); 790 } 791 792 /** 793 * lpfc_fwrev_show - Return the firmware rev running in the hba 794 * @dev: class converted to a Scsi_host structure. 795 * @attr: device attribute, not used. 796 * @buf: on return contains the scsi vpd program type. 797 * 798 * Returns: size of formatted string. 799 **/ 800 static ssize_t 801 lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 802 char *buf) 803 { 804 struct Scsi_Host *shost = class_to_shost(dev); 805 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 806 struct lpfc_hba *phba = vport->phba; 807 uint32_t if_type; 808 uint8_t sli_family; 809 char fwrev[FW_REV_STR_SIZE]; 810 int len; 811 812 lpfc_decode_firmware_rev(phba, fwrev, 1); 813 if_type = phba->sli4_hba.pc_sli4_params.if_type; 814 sli_family = phba->sli4_hba.pc_sli4_params.sli_family; 815 816 if (phba->sli_rev < LPFC_SLI_REV4) 817 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", 818 fwrev, phba->sli_rev); 819 else 820 len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", 821 fwrev, phba->sli_rev, if_type, sli_family); 822 823 return len; 824 } 825 826 /** 827 * lpfc_hdw_show - Return the jedec information about the hba 828 * @dev: class converted to a Scsi_host structure. 829 * @attr: device attribute, not used. 830 * @buf: on return contains the scsi vpd program type. 831 * 832 * Returns: size of formatted string. 833 **/ 834 static ssize_t 835 lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 836 { 837 char hdw[9]; 838 struct Scsi_Host *shost = class_to_shost(dev); 839 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 840 struct lpfc_hba *phba = vport->phba; 841 lpfc_vpd_t *vp = &phba->vpd; 842 843 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 844 return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, 845 vp->rev.smRev, vp->rev.smFwRev); 846 } 847 848 /** 849 * lpfc_option_rom_version_show - Return the adapter ROM FCode version 850 * @dev: class converted to a Scsi_host structure. 851 * @attr: device attribute, not used. 852 * @buf: on return contains the ROM and FCode ascii strings. 853 * 854 * Returns: size of formatted string. 855 **/ 856 static ssize_t 857 lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 858 char *buf) 859 { 860 struct Scsi_Host *shost = class_to_shost(dev); 861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 862 struct lpfc_hba *phba = vport->phba; 863 char fwrev[FW_REV_STR_SIZE]; 864 865 if (phba->sli_rev < LPFC_SLI_REV4) 866 return scnprintf(buf, PAGE_SIZE, "%s\n", 867 phba->OptionROMVersion); 868 869 lpfc_decode_firmware_rev(phba, fwrev, 1); 870 return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); 871 } 872 873 /** 874 * lpfc_state_show - Return the link state of the port 875 * @dev: class converted to a Scsi_host structure. 876 * @attr: device attribute, not used. 877 * @buf: on return contains text describing the state of the link. 878 * 879 * Notes: 880 * The switch statement has no default so zero will be returned. 881 * 882 * Returns: size of formatted string. 883 **/ 884 static ssize_t 885 lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 886 char *buf) 887 { 888 struct Scsi_Host *shost = class_to_shost(dev); 889 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 890 struct lpfc_hba *phba = vport->phba; 891 int len = 0; 892 893 switch (phba->link_state) { 894 case LPFC_LINK_UNKNOWN: 895 case LPFC_WARM_START: 896 case LPFC_INIT_START: 897 case LPFC_INIT_MBX_CMDS: 898 case LPFC_LINK_DOWN: 899 case LPFC_HBA_ERROR: 900 if (phba->hba_flag & LINK_DISABLED) 901 len += scnprintf(buf + len, PAGE_SIZE-len, 902 "Link Down - User disabled\n"); 903 else 904 len += scnprintf(buf + len, PAGE_SIZE-len, 905 "Link Down\n"); 906 break; 907 case LPFC_LINK_UP: 908 case LPFC_CLEAR_LA: 909 case LPFC_HBA_READY: 910 len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); 911 912 switch (vport->port_state) { 913 case LPFC_LOCAL_CFG_LINK: 914 len += scnprintf(buf + len, PAGE_SIZE-len, 915 "Configuring Link\n"); 916 break; 917 case LPFC_FDISC: 918 case LPFC_FLOGI: 919 case LPFC_FABRIC_CFG_LINK: 920 case LPFC_NS_REG: 921 case LPFC_NS_QRY: 922 case LPFC_BUILD_DISC_LIST: 923 case LPFC_DISC_AUTH: 924 len += scnprintf(buf + len, PAGE_SIZE - len, 925 "Discovery\n"); 926 break; 927 case LPFC_VPORT_READY: 928 len += scnprintf(buf + len, PAGE_SIZE - len, 929 "Ready\n"); 930 break; 931 932 case LPFC_VPORT_FAILED: 933 len += scnprintf(buf + len, PAGE_SIZE - len, 934 "Failed\n"); 935 break; 936 937 case LPFC_VPORT_UNKNOWN: 938 len += scnprintf(buf + len, PAGE_SIZE - len, 939 "Unknown\n"); 940 break; 941 } 942 if (phba->sli.sli_flag & LPFC_MENLO_MAINT) 943 len += scnprintf(buf + len, PAGE_SIZE-len, 944 " Menlo Maint Mode\n"); 945 else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 946 if (vport->fc_flag & FC_PUBLIC_LOOP) 947 len += scnprintf(buf + len, PAGE_SIZE-len, 948 " Public Loop\n"); 949 else 950 len += scnprintf(buf + len, PAGE_SIZE-len, 951 " Private Loop\n"); 952 } else { 953 if (vport->fc_flag & FC_FABRIC) 954 len += scnprintf(buf + len, PAGE_SIZE-len, 955 " Fabric\n"); 956 else 957 len += scnprintf(buf + len, PAGE_SIZE-len, 958 " Point-2-Point\n"); 959 } 960 } 961 962 if ((phba->sli_rev == LPFC_SLI_REV4) && 963 ((bf_get(lpfc_sli_intf_if_type, 964 &phba->sli4_hba.sli_intf) == 965 LPFC_SLI_INTF_IF_TYPE_6))) { 966 struct lpfc_trunk_link link = phba->trunk_link; 967 968 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) 969 len += scnprintf(buf + len, PAGE_SIZE - len, 970 "Trunk port 0: Link %s %s\n", 971 (link.link0.state == LPFC_LINK_UP) ? 972 "Up" : "Down. ", 973 trunk_errmsg[link.link0.fault]); 974 975 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) 976 len += scnprintf(buf + len, PAGE_SIZE - len, 977 "Trunk port 1: Link %s %s\n", 978 (link.link1.state == LPFC_LINK_UP) ? 979 "Up" : "Down. ", 980 trunk_errmsg[link.link1.fault]); 981 982 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) 983 len += scnprintf(buf + len, PAGE_SIZE - len, 984 "Trunk port 2: Link %s %s\n", 985 (link.link2.state == LPFC_LINK_UP) ? 986 "Up" : "Down. ", 987 trunk_errmsg[link.link2.fault]); 988 989 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) 990 len += scnprintf(buf + len, PAGE_SIZE - len, 991 "Trunk port 3: Link %s %s\n", 992 (link.link3.state == LPFC_LINK_UP) ? 993 "Up" : "Down. ", 994 trunk_errmsg[link.link3.fault]); 995 996 } 997 998 return len; 999 } 1000 1001 /** 1002 * lpfc_sli4_protocol_show - Return the fip mode of the HBA 1003 * @dev: class unused variable. 1004 * @attr: device attribute, not used. 1005 * @buf: on return contains the module description text. 1006 * 1007 * Returns: size of formatted string. 1008 **/ 1009 static ssize_t 1010 lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, 1011 char *buf) 1012 { 1013 struct Scsi_Host *shost = class_to_shost(dev); 1014 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1015 struct lpfc_hba *phba = vport->phba; 1016 1017 if (phba->sli_rev < LPFC_SLI_REV4) 1018 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1019 1020 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { 1021 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) 1022 return scnprintf(buf, PAGE_SIZE, "fcoe\n"); 1023 if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) 1024 return scnprintf(buf, PAGE_SIZE, "fc\n"); 1025 } 1026 return scnprintf(buf, PAGE_SIZE, "unknown\n"); 1027 } 1028 1029 /** 1030 * lpfc_oas_supported_show - Return whether or not Optimized Access Storage 1031 * (OAS) is supported. 1032 * @dev: class unused variable. 1033 * @attr: device attribute, not used. 1034 * @buf: on return contains the module description text. 1035 * 1036 * Returns: size of formatted string. 1037 **/ 1038 static ssize_t 1039 lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, 1040 char *buf) 1041 { 1042 struct Scsi_Host *shost = class_to_shost(dev); 1043 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 1044 struct lpfc_hba *phba = vport->phba; 1045 1046 return scnprintf(buf, PAGE_SIZE, "%d\n", 1047 phba->sli4_hba.pc_sli4_params.oas_supported); 1048 } 1049 1050 /** 1051 * lpfc_link_state_store - Transition the link_state on an HBA port 1052 * @dev: class device that is converted into a Scsi_host. 1053 * @attr: device attribute, not used. 1054 * @buf: one or more lpfc_polling_flags values. 1055 * @count: not used. 1056 * 1057 * Returns: 1058 * -EINVAL if the buffer is not "up" or "down" 1059 * return from link state change function if non-zero 1060 * length of the buf on success 1061 **/ 1062 static ssize_t 1063 lpfc_link_state_store(struct device *dev, struct device_attribute *attr, 1064 const char *buf, size_t count) 1065 { 1066 struct Scsi_Host *shost = class_to_shost(dev); 1067 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1068 struct lpfc_hba *phba = vport->phba; 1069 1070 int status = -EINVAL; 1071 1072 if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && 1073 (phba->link_state == LPFC_LINK_DOWN)) 1074 status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 1075 else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && 1076 (phba->link_state >= LPFC_LINK_UP)) 1077 status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); 1078 1079 if (status == 0) 1080 return strlen(buf); 1081 else 1082 return status; 1083 } 1084 1085 /** 1086 * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports 1087 * @dev: class device that is converted into a Scsi_host. 1088 * @attr: device attribute, not used. 1089 * @buf: on return contains the sum of fc mapped and unmapped. 1090 * 1091 * Description: 1092 * Returns the ascii text number of the sum of the fc mapped and unmapped 1093 * vport counts. 1094 * 1095 * Returns: size of formatted string. 1096 **/ 1097 static ssize_t 1098 lpfc_num_discovered_ports_show(struct device *dev, 1099 struct device_attribute *attr, char *buf) 1100 { 1101 struct Scsi_Host *shost = class_to_shost(dev); 1102 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1103 1104 return scnprintf(buf, PAGE_SIZE, "%d\n", 1105 vport->fc_map_cnt + vport->fc_unmap_cnt); 1106 } 1107 1108 /** 1109 * lpfc_issue_lip - Misnomer, name carried over from long ago 1110 * @shost: Scsi_Host pointer. 1111 * 1112 * Description: 1113 * Bring the link down gracefully then re-init the link. The firmware will 1114 * re-init the fiber channel interface as required. Does not issue a LIP. 1115 * 1116 * Returns: 1117 * -EPERM port offline or management commands are being blocked 1118 * -ENOMEM cannot allocate memory for the mailbox command 1119 * -EIO error sending the mailbox command 1120 * zero for success 1121 **/ 1122 static int 1123 lpfc_issue_lip(struct Scsi_Host *shost) 1124 { 1125 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1126 struct lpfc_hba *phba = vport->phba; 1127 LPFC_MBOXQ_t *pmboxq; 1128 int mbxstatus = MBXERR_ERROR; 1129 1130 /* 1131 * If the link is offline, disabled or BLOCK_MGMT_IO 1132 * it doesn't make any sense to allow issue_lip 1133 */ 1134 if ((vport->fc_flag & FC_OFFLINE_MODE) || 1135 (phba->hba_flag & LINK_DISABLED) || 1136 (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) 1137 return -EPERM; 1138 1139 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1140 1141 if (!pmboxq) 1142 return -ENOMEM; 1143 1144 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1145 pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; 1146 pmboxq->u.mb.mbxOwner = OWN_HOST; 1147 1148 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); 1149 1150 if ((mbxstatus == MBX_SUCCESS) && 1151 (pmboxq->u.mb.mbxStatus == 0 || 1152 pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { 1153 memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1154 lpfc_init_link(phba, pmboxq, phba->cfg_topology, 1155 phba->cfg_link_speed); 1156 mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, 1157 phba->fc_ratov * 2); 1158 if ((mbxstatus == MBX_SUCCESS) && 1159 (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) 1160 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 1161 "2859 SLI authentication is required " 1162 "for INIT_LINK but has not done yet\n"); 1163 } 1164 1165 lpfc_set_loopback_flag(phba); 1166 if (mbxstatus != MBX_TIMEOUT) 1167 mempool_free(pmboxq, phba->mbox_mem_pool); 1168 1169 if (mbxstatus == MBXERR_ERROR) 1170 return -EIO; 1171 1172 return 0; 1173 } 1174 1175 int 1176 lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) 1177 { 1178 int cnt = 0; 1179 1180 spin_lock_irq(lock); 1181 while (!list_empty(q)) { 1182 spin_unlock_irq(lock); 1183 msleep(20); 1184 if (cnt++ > 250) { /* 5 secs */ 1185 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1186 "0466 %s %s\n", 1187 "Outstanding IO when ", 1188 "bringing Adapter offline\n"); 1189 return 0; 1190 } 1191 spin_lock_irq(lock); 1192 } 1193 spin_unlock_irq(lock); 1194 return 1; 1195 } 1196 1197 /** 1198 * lpfc_do_offline - Issues a mailbox command to bring the link down 1199 * @phba: lpfc_hba pointer. 1200 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. 1201 * 1202 * Notes: 1203 * Assumes any error from lpfc_do_offline() will be negative. 1204 * Can wait up to 5 seconds for the port ring buffers count 1205 * to reach zero, prints a warning if it is not zero and continues. 1206 * lpfc_workq_post_event() returns a non-zero return code if call fails. 1207 * 1208 * Returns: 1209 * -EIO error posting the event 1210 * zero for success 1211 **/ 1212 static int 1213 lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 1214 { 1215 struct completion online_compl; 1216 struct lpfc_queue *qp = NULL; 1217 struct lpfc_sli_ring *pring; 1218 struct lpfc_sli *psli; 1219 int status = 0; 1220 int i; 1221 int rc; 1222 1223 init_completion(&online_compl); 1224 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1225 LPFC_EVT_OFFLINE_PREP); 1226 if (rc == 0) 1227 return -ENOMEM; 1228 1229 wait_for_completion(&online_compl); 1230 1231 if (status != 0) 1232 return -EIO; 1233 1234 psli = &phba->sli; 1235 1236 /* 1237 * If freeing the queues have already started, don't access them. 1238 * Otherwise set FREE_WAIT to indicate that queues are being used 1239 * to hold the freeing process until we finish. 1240 */ 1241 spin_lock_irq(&phba->hbalock); 1242 if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { 1243 psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; 1244 } else { 1245 spin_unlock_irq(&phba->hbalock); 1246 goto skip_wait; 1247 } 1248 spin_unlock_irq(&phba->hbalock); 1249 1250 /* Wait a little for things to settle down, but not 1251 * long enough for dev loss timeout to expire. 1252 */ 1253 if (phba->sli_rev != LPFC_SLI_REV4) { 1254 for (i = 0; i < psli->num_rings; i++) { 1255 pring = &psli->sli3_ring[i]; 1256 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1257 &phba->hbalock)) 1258 goto out; 1259 } 1260 } else { 1261 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 1262 pring = qp->pring; 1263 if (!pring) 1264 continue; 1265 if (!lpfc_emptyq_wait(phba, &pring->txcmplq, 1266 &pring->ring_lock)) 1267 goto out; 1268 } 1269 } 1270 out: 1271 spin_lock_irq(&phba->hbalock); 1272 psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; 1273 spin_unlock_irq(&phba->hbalock); 1274 1275 skip_wait: 1276 init_completion(&online_compl); 1277 rc = lpfc_workq_post_event(phba, &status, &online_compl, type); 1278 if (rc == 0) 1279 return -ENOMEM; 1280 1281 wait_for_completion(&online_compl); 1282 1283 if (status != 0) 1284 return -EIO; 1285 1286 return 0; 1287 } 1288 1289 /** 1290 * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA 1291 * @phba: lpfc_hba pointer. 1292 * 1293 * Description: 1294 * Issues a PCI secondary bus reset for the phba->pcidev. 1295 * 1296 * Notes: 1297 * First walks the bus_list to ensure only PCI devices with Emulex 1298 * vendor id, device ids that support hot reset, only one occurrence 1299 * of function 0, and all ports on the bus are in offline mode to ensure the 1300 * hot reset only affects one valid HBA. 1301 * 1302 * Returns: 1303 * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 1304 * -ENODEV, NULL ptr to pcidev 1305 * -EBADSLT, detected invalid device 1306 * -EBUSY, port is not in offline state 1307 * 0, successful 1308 */ 1309 static int 1310 lpfc_reset_pci_bus(struct lpfc_hba *phba) 1311 { 1312 struct pci_dev *pdev = phba->pcidev; 1313 struct Scsi_Host *shost = NULL; 1314 struct lpfc_hba *phba_other = NULL; 1315 struct pci_dev *ptr = NULL; 1316 int res; 1317 1318 if (phba->cfg_enable_hba_reset != 2) 1319 return -ENOTSUPP; 1320 1321 if (!pdev) { 1322 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); 1323 return -ENODEV; 1324 } 1325 1326 res = lpfc_check_pci_resettable(phba); 1327 if (res) 1328 return res; 1329 1330 /* Walk the list of devices on the pci_dev's bus */ 1331 list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { 1332 /* Check port is offline */ 1333 shost = pci_get_drvdata(ptr); 1334 if (shost) { 1335 phba_other = 1336 ((struct lpfc_vport *)shost->hostdata)->phba; 1337 if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { 1338 lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, 1339 "8349 WWPN = 0x%02x%02x%02x%02x" 1340 "%02x%02x%02x%02x is not " 1341 "offline!\n", 1342 phba_other->wwpn[0], 1343 phba_other->wwpn[1], 1344 phba_other->wwpn[2], 1345 phba_other->wwpn[3], 1346 phba_other->wwpn[4], 1347 phba_other->wwpn[5], 1348 phba_other->wwpn[6], 1349 phba_other->wwpn[7]); 1350 return -EBUSY; 1351 } 1352 } 1353 } 1354 1355 /* Issue PCI bus reset */ 1356 res = pci_reset_bus(pdev); 1357 if (res) { 1358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1359 "8350 PCI reset bus failed: %d\n", res); 1360 } 1361 1362 return res; 1363 } 1364 1365 /** 1366 * lpfc_selective_reset - Offline then onlines the port 1367 * @phba: lpfc_hba pointer. 1368 * 1369 * Description: 1370 * If the port is configured to allow a reset then the hba is brought 1371 * offline then online. 1372 * 1373 * Notes: 1374 * Assumes any error from lpfc_do_offline() will be negative. 1375 * Do not make this function static. 1376 * 1377 * Returns: 1378 * lpfc_do_offline() return code if not zero 1379 * -EIO reset not configured or error posting the event 1380 * zero for success 1381 **/ 1382 int 1383 lpfc_selective_reset(struct lpfc_hba *phba) 1384 { 1385 struct completion online_compl; 1386 int status = 0; 1387 int rc; 1388 1389 if (!phba->cfg_enable_hba_reset) 1390 return -EACCES; 1391 1392 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { 1393 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1394 1395 if (status != 0) 1396 return status; 1397 } 1398 1399 init_completion(&online_compl); 1400 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1401 LPFC_EVT_ONLINE); 1402 if (rc == 0) 1403 return -ENOMEM; 1404 1405 wait_for_completion(&online_compl); 1406 1407 if (status != 0) 1408 return -EIO; 1409 1410 return 0; 1411 } 1412 1413 /** 1414 * lpfc_issue_reset - Selectively resets an adapter 1415 * @dev: class device that is converted into a Scsi_host. 1416 * @attr: device attribute, not used. 1417 * @buf: containing the string "selective". 1418 * @count: unused variable. 1419 * 1420 * Description: 1421 * If the buf contains the string "selective" then lpfc_selective_reset() 1422 * is called to perform the reset. 1423 * 1424 * Notes: 1425 * Assumes any error from lpfc_selective_reset() will be negative. 1426 * If lpfc_selective_reset() returns zero then the length of the buffer 1427 * is returned which indicates success 1428 * 1429 * Returns: 1430 * -EINVAL if the buffer does not contain the string "selective" 1431 * length of buf if lpfc-selective_reset() if the call succeeds 1432 * return value of lpfc_selective_reset() if the call fails 1433 **/ 1434 static ssize_t 1435 lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 1436 const char *buf, size_t count) 1437 { 1438 struct Scsi_Host *shost = class_to_shost(dev); 1439 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1440 struct lpfc_hba *phba = vport->phba; 1441 int status = -EINVAL; 1442 1443 if (!phba->cfg_enable_hba_reset) 1444 return -EACCES; 1445 1446 if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) 1447 status = phba->lpfc_selective_reset(phba); 1448 1449 if (status == 0) 1450 return strlen(buf); 1451 else 1452 return status; 1453 } 1454 1455 /** 1456 * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness 1457 * @phba: lpfc_hba pointer. 1458 * 1459 * Description: 1460 * SLI4 interface type-2 device to wait on the sliport status register for 1461 * the readyness after performing a firmware reset. 1462 * 1463 * Returns: 1464 * zero for success, -EPERM when port does not have privilege to perform the 1465 * reset, -EIO when port timeout from recovering from the reset. 1466 * 1467 * Note: 1468 * As the caller will interpret the return code by value, be careful in making 1469 * change or addition to return codes. 1470 **/ 1471 int 1472 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) 1473 { 1474 struct lpfc_register portstat_reg = {0}; 1475 int i; 1476 1477 msleep(100); 1478 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1479 &portstat_reg.word0)) 1480 return -EIO; 1481 1482 /* verify if privileged for the request operation */ 1483 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && 1484 !bf_get(lpfc_sliport_status_err, &portstat_reg)) 1485 return -EPERM; 1486 1487 /* wait for the SLI port firmware ready after firmware reset */ 1488 for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { 1489 msleep(10); 1490 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 1491 &portstat_reg.word0)) 1492 continue; 1493 if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) 1494 continue; 1495 if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) 1496 continue; 1497 if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) 1498 continue; 1499 break; 1500 } 1501 1502 if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) 1503 return 0; 1504 else 1505 return -EIO; 1506 } 1507 1508 /** 1509 * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc 1510 * @phba: lpfc_hba pointer. 1511 * 1512 * Description: 1513 * Request SLI4 interface type-2 device to perform a physical register set 1514 * access. 1515 * 1516 * Returns: 1517 * zero for success 1518 **/ 1519 static ssize_t 1520 lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) 1521 { 1522 struct completion online_compl; 1523 struct pci_dev *pdev = phba->pcidev; 1524 uint32_t before_fc_flag; 1525 uint32_t sriov_nr_virtfn; 1526 uint32_t reg_val; 1527 int status = 0, rc = 0; 1528 int job_posted = 1, sriov_err; 1529 1530 if (!phba->cfg_enable_hba_reset) 1531 return -EACCES; 1532 1533 if ((phba->sli_rev < LPFC_SLI_REV4) || 1534 (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 1535 LPFC_SLI_INTF_IF_TYPE_2)) 1536 return -EPERM; 1537 1538 /* Keep state if we need to restore back */ 1539 before_fc_flag = phba->pport->fc_flag; 1540 sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; 1541 1542 /* Disable SR-IOV virtual functions if enabled */ 1543 if (phba->cfg_sriov_nr_virtfn) { 1544 pci_disable_sriov(pdev); 1545 phba->cfg_sriov_nr_virtfn = 0; 1546 } 1547 1548 if (opcode == LPFC_FW_DUMP) 1549 phba->hba_flag |= HBA_FW_DUMP_OP; 1550 1551 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1552 1553 if (status != 0) { 1554 phba->hba_flag &= ~HBA_FW_DUMP_OP; 1555 return status; 1556 } 1557 1558 /* wait for the device to be quiesced before firmware reset */ 1559 msleep(100); 1560 1561 reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + 1562 LPFC_CTL_PDEV_CTL_OFFSET); 1563 1564 if (opcode == LPFC_FW_DUMP) 1565 reg_val |= LPFC_FW_DUMP_REQUEST; 1566 else if (opcode == LPFC_FW_RESET) 1567 reg_val |= LPFC_CTL_PDEV_CTL_FRST; 1568 else if (opcode == LPFC_DV_RESET) 1569 reg_val |= LPFC_CTL_PDEV_CTL_DRST; 1570 1571 writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + 1572 LPFC_CTL_PDEV_CTL_OFFSET); 1573 /* flush */ 1574 readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); 1575 1576 /* delay driver action following IF_TYPE_2 reset */ 1577 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1578 1579 if (rc == -EPERM) { 1580 /* no privilege for reset */ 1581 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1582 "3150 No privilege to perform the requested " 1583 "access: x%x\n", reg_val); 1584 } else if (rc == -EIO) { 1585 /* reset failed, there is nothing more we can do */ 1586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 1587 "3153 Fail to perform the requested " 1588 "access: x%x\n", reg_val); 1589 return rc; 1590 } 1591 1592 /* keep the original port state */ 1593 if (before_fc_flag & FC_OFFLINE_MODE) 1594 goto out; 1595 1596 init_completion(&online_compl); 1597 job_posted = lpfc_workq_post_event(phba, &status, &online_compl, 1598 LPFC_EVT_ONLINE); 1599 if (!job_posted) 1600 goto out; 1601 1602 wait_for_completion(&online_compl); 1603 1604 out: 1605 /* in any case, restore the virtual functions enabled as before */ 1606 if (sriov_nr_virtfn) { 1607 sriov_err = 1608 lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); 1609 if (!sriov_err) 1610 phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; 1611 } 1612 1613 /* return proper error code */ 1614 if (!rc) { 1615 if (!job_posted) 1616 rc = -ENOMEM; 1617 else if (status) 1618 rc = -EIO; 1619 } 1620 return rc; 1621 } 1622 1623 /** 1624 * lpfc_nport_evt_cnt_show - Return the number of nport events 1625 * @dev: class device that is converted into a Scsi_host. 1626 * @attr: device attribute, not used. 1627 * @buf: on return contains the ascii number of nport events. 1628 * 1629 * Returns: size of formatted string. 1630 **/ 1631 static ssize_t 1632 lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 1633 char *buf) 1634 { 1635 struct Scsi_Host *shost = class_to_shost(dev); 1636 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1637 struct lpfc_hba *phba = vport->phba; 1638 1639 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 1640 } 1641 1642 static int 1643 lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) 1644 { 1645 LPFC_MBOXQ_t *mbox = NULL; 1646 unsigned long val = 0; 1647 char *pval = NULL; 1648 int rc = 0; 1649 1650 if (!strncmp("enable", buff_out, 1651 strlen("enable"))) { 1652 pval = buff_out + strlen("enable") + 1; 1653 rc = kstrtoul(pval, 0, &val); 1654 if (rc) 1655 return rc; /* Invalid number */ 1656 } else if (!strncmp("disable", buff_out, 1657 strlen("disable"))) { 1658 val = 0; 1659 } else { 1660 return -EINVAL; /* Invalid command */ 1661 } 1662 1663 switch (val) { 1664 case 0: 1665 val = 0x0; /* Disable */ 1666 break; 1667 case 2: 1668 val = 0x1; /* Enable two port trunk */ 1669 break; 1670 case 4: 1671 val = 0x2; /* Enable four port trunk */ 1672 break; 1673 default: 1674 return -EINVAL; 1675 } 1676 1677 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1678 "0070 Set trunk mode with val %ld ", val); 1679 1680 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1681 if (!mbox) 1682 return -ENOMEM; 1683 1684 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, 1685 LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 1686 12, LPFC_SLI4_MBX_EMBED); 1687 1688 bf_set(lpfc_mbx_set_trunk_mode, 1689 &mbox->u.mqe.un.set_trunk_mode, 1690 val); 1691 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 1692 if (rc) 1693 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1694 "0071 Set trunk mode failed with status: %d", 1695 rc); 1696 if (rc != MBX_TIMEOUT) 1697 mempool_free(mbox, phba->mbox_mem_pool); 1698 1699 return 0; 1700 } 1701 1702 /** 1703 * lpfc_board_mode_show - Return the state of the board 1704 * @dev: class device that is converted into a Scsi_host. 1705 * @attr: device attribute, not used. 1706 * @buf: on return contains the state of the adapter. 1707 * 1708 * Returns: size of formatted string. 1709 **/ 1710 static ssize_t 1711 lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 1712 char *buf) 1713 { 1714 struct Scsi_Host *shost = class_to_shost(dev); 1715 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1716 struct lpfc_hba *phba = vport->phba; 1717 char * state; 1718 1719 if (phba->link_state == LPFC_HBA_ERROR) 1720 state = "error"; 1721 else if (phba->link_state == LPFC_WARM_START) 1722 state = "warm start"; 1723 else if (phba->link_state == LPFC_INIT_START) 1724 state = "offline"; 1725 else 1726 state = "online"; 1727 1728 return scnprintf(buf, PAGE_SIZE, "%s\n", state); 1729 } 1730 1731 /** 1732 * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state 1733 * @dev: class device that is converted into a Scsi_host. 1734 * @attr: device attribute, not used. 1735 * @buf: containing one of the strings "online", "offline", "warm" or "error". 1736 * @count: unused variable. 1737 * 1738 * Returns: 1739 * -EACCES if enable hba reset not enabled 1740 * -EINVAL if the buffer does not contain a valid string (see above) 1741 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails 1742 * buf length greater than zero indicates success 1743 **/ 1744 static ssize_t 1745 lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 1746 const char *buf, size_t count) 1747 { 1748 struct Scsi_Host *shost = class_to_shost(dev); 1749 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1750 struct lpfc_hba *phba = vport->phba; 1751 struct completion online_compl; 1752 char *board_mode_str = NULL; 1753 int status = 0; 1754 int rc; 1755 1756 if (!phba->cfg_enable_hba_reset) { 1757 status = -EACCES; 1758 goto board_mode_out; 1759 } 1760 1761 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1762 "3050 lpfc_board_mode set to %s\n", buf); 1763 1764 init_completion(&online_compl); 1765 1766 if(strncmp(buf, "online", sizeof("online") - 1) == 0) { 1767 rc = lpfc_workq_post_event(phba, &status, &online_compl, 1768 LPFC_EVT_ONLINE); 1769 if (rc == 0) { 1770 status = -ENOMEM; 1771 goto board_mode_out; 1772 } 1773 wait_for_completion(&online_compl); 1774 if (status) 1775 status = -EIO; 1776 } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) 1777 status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 1778 else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) 1779 if (phba->sli_rev == LPFC_SLI_REV4) 1780 status = -EINVAL; 1781 else 1782 status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); 1783 else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 1784 if (phba->sli_rev == LPFC_SLI_REV4) 1785 status = -EINVAL; 1786 else 1787 status = lpfc_do_offline(phba, LPFC_EVT_KILL); 1788 else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) 1789 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); 1790 else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) 1791 status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); 1792 else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) 1793 status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); 1794 else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) 1795 == 0) 1796 status = lpfc_reset_pci_bus(phba); 1797 else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) 1798 status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); 1799 else 1800 status = -EINVAL; 1801 1802 board_mode_out: 1803 if (!status) 1804 return strlen(buf); 1805 else { 1806 board_mode_str = strchr(buf, '\n'); 1807 if (board_mode_str) 1808 *board_mode_str = '\0'; 1809 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1810 "3097 Failed \"%s\", status(%d), " 1811 "fc_flag(x%x)\n", 1812 buf, status, phba->pport->fc_flag); 1813 return status; 1814 } 1815 } 1816 1817 /** 1818 * lpfc_get_hba_info - Return various bits of informaton about the adapter 1819 * @phba: pointer to the adapter structure. 1820 * @mxri: max xri count. 1821 * @axri: available xri count. 1822 * @mrpi: max rpi count. 1823 * @arpi: available rpi count. 1824 * @mvpi: max vpi count. 1825 * @avpi: available vpi count. 1826 * 1827 * Description: 1828 * If an integer pointer for an count is not null then the value for the 1829 * count is returned. 1830 * 1831 * Returns: 1832 * zero on error 1833 * one for success 1834 **/ 1835 static int 1836 lpfc_get_hba_info(struct lpfc_hba *phba, 1837 uint32_t *mxri, uint32_t *axri, 1838 uint32_t *mrpi, uint32_t *arpi, 1839 uint32_t *mvpi, uint32_t *avpi) 1840 { 1841 struct lpfc_mbx_read_config *rd_config; 1842 LPFC_MBOXQ_t *pmboxq; 1843 MAILBOX_t *pmb; 1844 int rc = 0; 1845 uint32_t max_vpi; 1846 1847 /* 1848 * prevent udev from issuing mailbox commands until the port is 1849 * configured. 1850 */ 1851 if (phba->link_state < LPFC_LINK_DOWN || 1852 !phba->mbox_mem_pool || 1853 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 1854 return 0; 1855 1856 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 1857 return 0; 1858 1859 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1860 if (!pmboxq) 1861 return 0; 1862 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 1863 1864 pmb = &pmboxq->u.mb; 1865 pmb->mbxCommand = MBX_READ_CONFIG; 1866 pmb->mbxOwner = OWN_HOST; 1867 pmboxq->ctx_buf = NULL; 1868 1869 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 1870 rc = MBX_NOT_FINISHED; 1871 else 1872 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 1873 1874 if (rc != MBX_SUCCESS) { 1875 if (rc != MBX_TIMEOUT) 1876 mempool_free(pmboxq, phba->mbox_mem_pool); 1877 return 0; 1878 } 1879 1880 if (phba->sli_rev == LPFC_SLI_REV4) { 1881 rd_config = &pmboxq->u.mqe.un.rd_config; 1882 if (mrpi) 1883 *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 1884 if (arpi) 1885 *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - 1886 phba->sli4_hba.max_cfg_param.rpi_used; 1887 if (mxri) 1888 *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 1889 if (axri) 1890 *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - 1891 phba->sli4_hba.max_cfg_param.xri_used; 1892 1893 /* Account for differences with SLI-3. Get vpi count from 1894 * mailbox data and subtract one for max vpi value. 1895 */ 1896 max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? 1897 (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; 1898 1899 /* Limit the max we support */ 1900 if (max_vpi > LPFC_MAX_VPI) 1901 max_vpi = LPFC_MAX_VPI; 1902 if (mvpi) 1903 *mvpi = max_vpi; 1904 if (avpi) 1905 *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; 1906 } else { 1907 if (mrpi) 1908 *mrpi = pmb->un.varRdConfig.max_rpi; 1909 if (arpi) 1910 *arpi = pmb->un.varRdConfig.avail_rpi; 1911 if (mxri) 1912 *mxri = pmb->un.varRdConfig.max_xri; 1913 if (axri) 1914 *axri = pmb->un.varRdConfig.avail_xri; 1915 if (mvpi) 1916 *mvpi = pmb->un.varRdConfig.max_vpi; 1917 if (avpi) { 1918 /* avail_vpi is only valid if link is up and ready */ 1919 if (phba->link_state == LPFC_HBA_READY) 1920 *avpi = pmb->un.varRdConfig.avail_vpi; 1921 else 1922 *avpi = pmb->un.varRdConfig.max_vpi; 1923 } 1924 } 1925 1926 mempool_free(pmboxq, phba->mbox_mem_pool); 1927 return 1; 1928 } 1929 1930 /** 1931 * lpfc_max_rpi_show - Return maximum rpi 1932 * @dev: class device that is converted into a Scsi_host. 1933 * @attr: device attribute, not used. 1934 * @buf: on return contains the maximum rpi count in decimal or "Unknown". 1935 * 1936 * Description: 1937 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1938 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1939 * to "Unknown" and the buffer length is returned, therefore the caller 1940 * must check for "Unknown" in the buffer to detect a failure. 1941 * 1942 * Returns: size of formatted string. 1943 **/ 1944 static ssize_t 1945 lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 1946 char *buf) 1947 { 1948 struct Scsi_Host *shost = class_to_shost(dev); 1949 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1950 struct lpfc_hba *phba = vport->phba; 1951 uint32_t cnt; 1952 1953 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) 1954 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 1955 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1956 } 1957 1958 /** 1959 * lpfc_used_rpi_show - Return maximum rpi minus available rpi 1960 * @dev: class device that is converted into a Scsi_host. 1961 * @attr: device attribute, not used. 1962 * @buf: containing the used rpi count in decimal or "Unknown". 1963 * 1964 * Description: 1965 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. 1966 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1967 * to "Unknown" and the buffer length is returned, therefore the caller 1968 * must check for "Unknown" in the buffer to detect a failure. 1969 * 1970 * Returns: size of formatted string. 1971 **/ 1972 static ssize_t 1973 lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 1974 char *buf) 1975 { 1976 struct Scsi_Host *shost = class_to_shost(dev); 1977 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 1978 struct lpfc_hba *phba = vport->phba; 1979 uint32_t cnt, acnt; 1980 1981 if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) 1982 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 1983 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 1984 } 1985 1986 /** 1987 * lpfc_max_xri_show - Return maximum xri 1988 * @dev: class device that is converted into a Scsi_host. 1989 * @attr: device attribute, not used. 1990 * @buf: on return contains the maximum xri count in decimal or "Unknown". 1991 * 1992 * Description: 1993 * Calls lpfc_get_hba_info() asking for just the mrpi count. 1994 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 1995 * to "Unknown" and the buffer length is returned, therefore the caller 1996 * must check for "Unknown" in the buffer to detect a failure. 1997 * 1998 * Returns: size of formatted string. 1999 **/ 2000 static ssize_t 2001 lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 2002 char *buf) 2003 { 2004 struct Scsi_Host *shost = class_to_shost(dev); 2005 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2006 struct lpfc_hba *phba = vport->phba; 2007 uint32_t cnt; 2008 2009 if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) 2010 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2011 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2012 } 2013 2014 /** 2015 * lpfc_used_xri_show - Return maximum xpi minus the available xpi 2016 * @dev: class device that is converted into a Scsi_host. 2017 * @attr: device attribute, not used. 2018 * @buf: on return contains the used xri count in decimal or "Unknown". 2019 * 2020 * Description: 2021 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. 2022 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2023 * to "Unknown" and the buffer length is returned, therefore the caller 2024 * must check for "Unknown" in the buffer to detect a failure. 2025 * 2026 * Returns: size of formatted string. 2027 **/ 2028 static ssize_t 2029 lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 2030 char *buf) 2031 { 2032 struct Scsi_Host *shost = class_to_shost(dev); 2033 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2034 struct lpfc_hba *phba = vport->phba; 2035 uint32_t cnt, acnt; 2036 2037 if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) 2038 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2039 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2040 } 2041 2042 /** 2043 * lpfc_max_vpi_show - Return maximum vpi 2044 * @dev: class device that is converted into a Scsi_host. 2045 * @attr: device attribute, not used. 2046 * @buf: on return contains the maximum vpi count in decimal or "Unknown". 2047 * 2048 * Description: 2049 * Calls lpfc_get_hba_info() asking for just the mvpi count. 2050 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2051 * to "Unknown" and the buffer length is returned, therefore the caller 2052 * must check for "Unknown" in the buffer to detect a failure. 2053 * 2054 * Returns: size of formatted string. 2055 **/ 2056 static ssize_t 2057 lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 2058 char *buf) 2059 { 2060 struct Scsi_Host *shost = class_to_shost(dev); 2061 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2062 struct lpfc_hba *phba = vport->phba; 2063 uint32_t cnt; 2064 2065 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) 2066 return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); 2067 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2068 } 2069 2070 /** 2071 * lpfc_used_vpi_show - Return maximum vpi minus the available vpi 2072 * @dev: class device that is converted into a Scsi_host. 2073 * @attr: device attribute, not used. 2074 * @buf: on return contains the used vpi count in decimal or "Unknown". 2075 * 2076 * Description: 2077 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. 2078 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set 2079 * to "Unknown" and the buffer length is returned, therefore the caller 2080 * must check for "Unknown" in the buffer to detect a failure. 2081 * 2082 * Returns: size of formatted string. 2083 **/ 2084 static ssize_t 2085 lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 2086 char *buf) 2087 { 2088 struct Scsi_Host *shost = class_to_shost(dev); 2089 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2090 struct lpfc_hba *phba = vport->phba; 2091 uint32_t cnt, acnt; 2092 2093 if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) 2094 return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); 2095 return scnprintf(buf, PAGE_SIZE, "Unknown\n"); 2096 } 2097 2098 /** 2099 * lpfc_npiv_info_show - Return text about NPIV support for the adapter 2100 * @dev: class device that is converted into a Scsi_host. 2101 * @attr: device attribute, not used. 2102 * @buf: text that must be interpreted to determine if npiv is supported. 2103 * 2104 * Description: 2105 * Buffer will contain text indicating npiv is not suppoerted on the port, 2106 * the port is an NPIV physical port, or it is an npiv virtual port with 2107 * the id of the vport. 2108 * 2109 * Returns: size of formatted string. 2110 **/ 2111 static ssize_t 2112 lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 2113 char *buf) 2114 { 2115 struct Scsi_Host *shost = class_to_shost(dev); 2116 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2117 struct lpfc_hba *phba = vport->phba; 2118 2119 if (!(phba->max_vpi)) 2120 return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); 2121 if (vport->port_type == LPFC_PHYSICAL_PORT) 2122 return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); 2123 return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 2124 } 2125 2126 /** 2127 * lpfc_poll_show - Return text about poll support for the adapter 2128 * @dev: class device that is converted into a Scsi_host. 2129 * @attr: device attribute, not used. 2130 * @buf: on return contains the cfg_poll in hex. 2131 * 2132 * Notes: 2133 * cfg_poll should be a lpfc_polling_flags type. 2134 * 2135 * Returns: size of formatted string. 2136 **/ 2137 static ssize_t 2138 lpfc_poll_show(struct device *dev, struct device_attribute *attr, 2139 char *buf) 2140 { 2141 struct Scsi_Host *shost = class_to_shost(dev); 2142 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2143 struct lpfc_hba *phba = vport->phba; 2144 2145 return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 2146 } 2147 2148 /** 2149 * lpfc_poll_store - Set the value of cfg_poll for the adapter 2150 * @dev: class device that is converted into a Scsi_host. 2151 * @attr: device attribute, not used. 2152 * @buf: one or more lpfc_polling_flags values. 2153 * @count: not used. 2154 * 2155 * Notes: 2156 * buf contents converted to integer and checked for a valid value. 2157 * 2158 * Returns: 2159 * -EINVAL if the buffer connot be converted or is out of range 2160 * length of the buf on success 2161 **/ 2162 static ssize_t 2163 lpfc_poll_store(struct device *dev, struct device_attribute *attr, 2164 const char *buf, size_t count) 2165 { 2166 struct Scsi_Host *shost = class_to_shost(dev); 2167 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2168 struct lpfc_hba *phba = vport->phba; 2169 uint32_t creg_val; 2170 uint32_t old_val; 2171 int val=0; 2172 2173 if (!isdigit(buf[0])) 2174 return -EINVAL; 2175 2176 if (sscanf(buf, "%i", &val) != 1) 2177 return -EINVAL; 2178 2179 if ((val & 0x3) != val) 2180 return -EINVAL; 2181 2182 if (phba->sli_rev == LPFC_SLI_REV4) 2183 val = 0; 2184 2185 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2186 "3051 lpfc_poll changed from %d to %d\n", 2187 phba->cfg_poll, val); 2188 2189 spin_lock_irq(&phba->hbalock); 2190 2191 old_val = phba->cfg_poll; 2192 2193 if (val & ENABLE_FCP_RING_POLLING) { 2194 if ((val & DISABLE_FCP_RING_INT) && 2195 !(old_val & DISABLE_FCP_RING_INT)) { 2196 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2197 spin_unlock_irq(&phba->hbalock); 2198 return -EINVAL; 2199 } 2200 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 2201 writel(creg_val, phba->HCregaddr); 2202 readl(phba->HCregaddr); /* flush */ 2203 2204 lpfc_poll_start_timer(phba); 2205 } 2206 } else if (val != 0x0) { 2207 spin_unlock_irq(&phba->hbalock); 2208 return -EINVAL; 2209 } 2210 2211 if (!(val & DISABLE_FCP_RING_INT) && 2212 (old_val & DISABLE_FCP_RING_INT)) 2213 { 2214 spin_unlock_irq(&phba->hbalock); 2215 del_timer(&phba->fcp_poll_timer); 2216 spin_lock_irq(&phba->hbalock); 2217 if (lpfc_readl(phba->HCregaddr, &creg_val)) { 2218 spin_unlock_irq(&phba->hbalock); 2219 return -EINVAL; 2220 } 2221 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); 2222 writel(creg_val, phba->HCregaddr); 2223 readl(phba->HCregaddr); /* flush */ 2224 } 2225 2226 phba->cfg_poll = val; 2227 2228 spin_unlock_irq(&phba->hbalock); 2229 2230 return strlen(buf); 2231 } 2232 2233 /** 2234 * lpfc_fips_level_show - Return the current FIPS level for the HBA 2235 * @dev: class unused variable. 2236 * @attr: device attribute, not used. 2237 * @buf: on return contains the module description text. 2238 * 2239 * Returns: size of formatted string. 2240 **/ 2241 static ssize_t 2242 lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, 2243 char *buf) 2244 { 2245 struct Scsi_Host *shost = class_to_shost(dev); 2246 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2247 struct lpfc_hba *phba = vport->phba; 2248 2249 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); 2250 } 2251 2252 /** 2253 * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA 2254 * @dev: class unused variable. 2255 * @attr: device attribute, not used. 2256 * @buf: on return contains the module description text. 2257 * 2258 * Returns: size of formatted string. 2259 **/ 2260 static ssize_t 2261 lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, 2262 char *buf) 2263 { 2264 struct Scsi_Host *shost = class_to_shost(dev); 2265 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2266 struct lpfc_hba *phba = vport->phba; 2267 2268 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); 2269 } 2270 2271 /** 2272 * lpfc_dss_show - Return the current state of dss and the configured state 2273 * @dev: class converted to a Scsi_host structure. 2274 * @attr: device attribute, not used. 2275 * @buf: on return contains the formatted text. 2276 * 2277 * Returns: size of formatted string. 2278 **/ 2279 static ssize_t 2280 lpfc_dss_show(struct device *dev, struct device_attribute *attr, 2281 char *buf) 2282 { 2283 struct Scsi_Host *shost = class_to_shost(dev); 2284 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2285 struct lpfc_hba *phba = vport->phba; 2286 2287 return scnprintf(buf, PAGE_SIZE, "%s - %sOperational\n", 2288 (phba->cfg_enable_dss) ? "Enabled" : "Disabled", 2289 (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? 2290 "" : "Not "); 2291 } 2292 2293 /** 2294 * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2295 * @dev: class converted to a Scsi_host structure. 2296 * @attr: device attribute, not used. 2297 * @buf: on return contains the formatted support level. 2298 * 2299 * Description: 2300 * Returns the maximum number of virtual functions a physical function can 2301 * support, 0 will be returned if called on virtual function. 2302 * 2303 * Returns: size of formatted string. 2304 **/ 2305 static ssize_t 2306 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2307 struct device_attribute *attr, 2308 char *buf) 2309 { 2310 struct Scsi_Host *shost = class_to_shost(dev); 2311 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2312 struct lpfc_hba *phba = vport->phba; 2313 uint16_t max_nr_virtfn; 2314 2315 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2316 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2317 } 2318 2319 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2320 { 2321 return val >= min && val <= max; 2322 } 2323 2324 /** 2325 * lpfc_enable_bbcr_set: Sets an attribute value. 2326 * @phba: pointer the the adapter structure. 2327 * @val: integer attribute value. 2328 * 2329 * Description: 2330 * Validates the min and max values then sets the 2331 * adapter config field if in the valid range. prints error message 2332 * and does not set the parameter if invalid. 2333 * 2334 * Returns: 2335 * zero on success 2336 * -EINVAL if val is invalid 2337 */ 2338 static ssize_t 2339 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2340 { 2341 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2343 "3068 %s_enable_bbcr changed from %d to %d\n", 2344 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2345 phba->cfg_enable_bbcr = val; 2346 return 0; 2347 } 2348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2349 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2350 LPFC_DRIVER_NAME, val); 2351 return -EINVAL; 2352 } 2353 2354 /** 2355 * lpfc_param_show - Return a cfg attribute value in decimal 2356 * 2357 * Description: 2358 * Macro that given an attr e.g. hba_queue_depth expands 2359 * into a function with the name lpfc_hba_queue_depth_show. 2360 * 2361 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2362 * @dev: class device that is converted into a Scsi_host. 2363 * @attr: device attribute, not used. 2364 * @buf: on return contains the attribute value in decimal. 2365 * 2366 * Returns: size of formatted string. 2367 **/ 2368 #define lpfc_param_show(attr) \ 2369 static ssize_t \ 2370 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2371 char *buf) \ 2372 { \ 2373 struct Scsi_Host *shost = class_to_shost(dev);\ 2374 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2375 struct lpfc_hba *phba = vport->phba;\ 2376 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2377 phba->cfg_##attr);\ 2378 } 2379 2380 /** 2381 * lpfc_param_hex_show - Return a cfg attribute value in hex 2382 * 2383 * Description: 2384 * Macro that given an attr e.g. hba_queue_depth expands 2385 * into a function with the name lpfc_hba_queue_depth_show 2386 * 2387 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2388 * @dev: class device that is converted into a Scsi_host. 2389 * @attr: device attribute, not used. 2390 * @buf: on return contains the attribute value in hexadecimal. 2391 * 2392 * Returns: size of formatted string. 2393 **/ 2394 #define lpfc_param_hex_show(attr) \ 2395 static ssize_t \ 2396 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2397 char *buf) \ 2398 { \ 2399 struct Scsi_Host *shost = class_to_shost(dev);\ 2400 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2401 struct lpfc_hba *phba = vport->phba;\ 2402 uint val = 0;\ 2403 val = phba->cfg_##attr;\ 2404 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2405 phba->cfg_##attr);\ 2406 } 2407 2408 /** 2409 * lpfc_param_init - Initializes a cfg attribute 2410 * 2411 * Description: 2412 * Macro that given an attr e.g. hba_queue_depth expands 2413 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2414 * takes a default argument, a minimum and maximum argument. 2415 * 2416 * lpfc_##attr##_init: Initializes an attribute. 2417 * @phba: pointer the the adapter structure. 2418 * @val: integer attribute value. 2419 * 2420 * Validates the min and max values then sets the adapter config field 2421 * accordingly, or uses the default if out of range and prints an error message. 2422 * 2423 * Returns: 2424 * zero on success 2425 * -EINVAL if default used 2426 **/ 2427 #define lpfc_param_init(attr, default, minval, maxval) \ 2428 static int \ 2429 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2430 { \ 2431 if (lpfc_rangecheck(val, minval, maxval)) {\ 2432 phba->cfg_##attr = val;\ 2433 return 0;\ 2434 }\ 2435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2436 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2437 "allowed range is ["#minval", "#maxval"]\n", val); \ 2438 phba->cfg_##attr = default;\ 2439 return -EINVAL;\ 2440 } 2441 2442 /** 2443 * lpfc_param_set - Set a cfg attribute value 2444 * 2445 * Description: 2446 * Macro that given an attr e.g. hba_queue_depth expands 2447 * into a function with the name lpfc_hba_queue_depth_set 2448 * 2449 * lpfc_##attr##_set: Sets an attribute value. 2450 * @phba: pointer the the adapter structure. 2451 * @val: integer attribute value. 2452 * 2453 * Description: 2454 * Validates the min and max values then sets the 2455 * adapter config field if in the valid range. prints error message 2456 * and does not set the parameter if invalid. 2457 * 2458 * Returns: 2459 * zero on success 2460 * -EINVAL if val is invalid 2461 **/ 2462 #define lpfc_param_set(attr, default, minval, maxval) \ 2463 static int \ 2464 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2465 { \ 2466 if (lpfc_rangecheck(val, minval, maxval)) {\ 2467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2468 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2469 phba->cfg_##attr, val); \ 2470 phba->cfg_##attr = val;\ 2471 return 0;\ 2472 }\ 2473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2474 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2475 "allowed range is ["#minval", "#maxval"]\n", val); \ 2476 return -EINVAL;\ 2477 } 2478 2479 /** 2480 * lpfc_param_store - Set a vport attribute value 2481 * 2482 * Description: 2483 * Macro that given an attr e.g. hba_queue_depth expands 2484 * into a function with the name lpfc_hba_queue_depth_store. 2485 * 2486 * lpfc_##attr##_store: Set an sttribute value. 2487 * @dev: class device that is converted into a Scsi_host. 2488 * @attr: device attribute, not used. 2489 * @buf: contains the attribute value in ascii. 2490 * @count: not used. 2491 * 2492 * Description: 2493 * Convert the ascii text number to an integer, then 2494 * use the lpfc_##attr##_set function to set the value. 2495 * 2496 * Returns: 2497 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2498 * length of buffer upon success. 2499 **/ 2500 #define lpfc_param_store(attr) \ 2501 static ssize_t \ 2502 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2503 const char *buf, size_t count) \ 2504 { \ 2505 struct Scsi_Host *shost = class_to_shost(dev);\ 2506 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2507 struct lpfc_hba *phba = vport->phba;\ 2508 uint val = 0;\ 2509 if (!isdigit(buf[0]))\ 2510 return -EINVAL;\ 2511 if (sscanf(buf, "%i", &val) != 1)\ 2512 return -EINVAL;\ 2513 if (lpfc_##attr##_set(phba, val) == 0) \ 2514 return strlen(buf);\ 2515 else \ 2516 return -EINVAL;\ 2517 } 2518 2519 /** 2520 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2521 * 2522 * Description: 2523 * Macro that given an attr e.g. hba_queue_depth expands 2524 * into a function with the name lpfc_hba_queue_depth_show 2525 * 2526 * lpfc_##attr##_show: prints the attribute value in decimal. 2527 * @dev: class device that is converted into a Scsi_host. 2528 * @attr: device attribute, not used. 2529 * @buf: on return contains the attribute value in decimal. 2530 * 2531 * Returns: length of formatted string. 2532 **/ 2533 #define lpfc_vport_param_show(attr) \ 2534 static ssize_t \ 2535 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2536 char *buf) \ 2537 { \ 2538 struct Scsi_Host *shost = class_to_shost(dev);\ 2539 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2540 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2541 } 2542 2543 /** 2544 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2545 * 2546 * Description: 2547 * Macro that given an attr e.g. 2548 * hba_queue_depth expands into a function with the name 2549 * lpfc_hba_queue_depth_show 2550 * 2551 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2552 * @dev: class device that is converted into a Scsi_host. 2553 * @attr: device attribute, not used. 2554 * @buf: on return contains the attribute value in hexadecimal. 2555 * 2556 * Returns: length of formatted string. 2557 **/ 2558 #define lpfc_vport_param_hex_show(attr) \ 2559 static ssize_t \ 2560 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2561 char *buf) \ 2562 { \ 2563 struct Scsi_Host *shost = class_to_shost(dev);\ 2564 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2565 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2566 } 2567 2568 /** 2569 * lpfc_vport_param_init - Initialize a vport cfg attribute 2570 * 2571 * Description: 2572 * Macro that given an attr e.g. hba_queue_depth expands 2573 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2574 * takes a default argument, a minimum and maximum argument. 2575 * 2576 * lpfc_##attr##_init: validates the min and max values then sets the 2577 * adapter config field accordingly, or uses the default if out of range 2578 * and prints an error message. 2579 * @phba: pointer the the adapter structure. 2580 * @val: integer attribute value. 2581 * 2582 * Returns: 2583 * zero on success 2584 * -EINVAL if default used 2585 **/ 2586 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2587 static int \ 2588 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2589 { \ 2590 if (lpfc_rangecheck(val, minval, maxval)) {\ 2591 vport->cfg_##attr = val;\ 2592 return 0;\ 2593 }\ 2594 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2595 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2596 "allowed range is ["#minval", "#maxval"]\n", val); \ 2597 vport->cfg_##attr = default;\ 2598 return -EINVAL;\ 2599 } 2600 2601 /** 2602 * lpfc_vport_param_set - Set a vport cfg attribute 2603 * 2604 * Description: 2605 * Macro that given an attr e.g. hba_queue_depth expands 2606 * into a function with the name lpfc_hba_queue_depth_set 2607 * 2608 * lpfc_##attr##_set: validates the min and max values then sets the 2609 * adapter config field if in the valid range. prints error message 2610 * and does not set the parameter if invalid. 2611 * @phba: pointer the the adapter structure. 2612 * @val: integer attribute value. 2613 * 2614 * Returns: 2615 * zero on success 2616 * -EINVAL if val is invalid 2617 **/ 2618 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2619 static int \ 2620 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2621 { \ 2622 if (lpfc_rangecheck(val, minval, maxval)) {\ 2623 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2624 "3053 lpfc_" #attr \ 2625 " changed from %d (x%x) to %d (x%x)\n", \ 2626 vport->cfg_##attr, vport->cfg_##attr, \ 2627 val, val); \ 2628 vport->cfg_##attr = val;\ 2629 return 0;\ 2630 }\ 2631 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2632 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2633 "allowed range is ["#minval", "#maxval"]\n", val); \ 2634 return -EINVAL;\ 2635 } 2636 2637 /** 2638 * lpfc_vport_param_store - Set a vport attribute 2639 * 2640 * Description: 2641 * Macro that given an attr e.g. hba_queue_depth 2642 * expands into a function with the name lpfc_hba_queue_depth_store 2643 * 2644 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2645 * use the lpfc_##attr##_set function to set the value. 2646 * @cdev: class device that is converted into a Scsi_host. 2647 * @buf: contains the attribute value in decimal. 2648 * @count: not used. 2649 * 2650 * Returns: 2651 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2652 * length of buffer upon success. 2653 **/ 2654 #define lpfc_vport_param_store(attr) \ 2655 static ssize_t \ 2656 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2657 const char *buf, size_t count) \ 2658 { \ 2659 struct Scsi_Host *shost = class_to_shost(dev);\ 2660 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2661 uint val = 0;\ 2662 if (!isdigit(buf[0]))\ 2663 return -EINVAL;\ 2664 if (sscanf(buf, "%i", &val) != 1)\ 2665 return -EINVAL;\ 2666 if (lpfc_##attr##_set(vport, val) == 0) \ 2667 return strlen(buf);\ 2668 else \ 2669 return -EINVAL;\ 2670 } 2671 2672 2673 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2674 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2675 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2676 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2677 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2678 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2679 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2680 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2681 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2682 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2683 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2684 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2685 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2686 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2687 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2688 lpfc_link_state_store); 2689 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2690 lpfc_option_rom_version_show, NULL); 2691 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2692 lpfc_num_discovered_ports_show, NULL); 2693 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2694 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2695 static DEVICE_ATTR_RO(lpfc_drvr_version); 2696 static DEVICE_ATTR_RO(lpfc_enable_fip); 2697 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2698 lpfc_board_mode_show, lpfc_board_mode_store); 2699 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2700 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2701 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2702 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2703 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2704 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2705 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2706 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2707 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2708 static DEVICE_ATTR_RO(lpfc_fips_level); 2709 static DEVICE_ATTR_RO(lpfc_fips_rev); 2710 static DEVICE_ATTR_RO(lpfc_dss); 2711 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2712 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2713 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2714 NULL); 2715 2716 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2717 #define WWN_SZ 8 2718 /** 2719 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2720 * @buf: WWN string. 2721 * @cnt: Length of string. 2722 * @wwn: Array to receive converted wwn value. 2723 * 2724 * Returns: 2725 * -EINVAL if the buffer does not contain a valid wwn 2726 * 0 success 2727 **/ 2728 static size_t 2729 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2730 { 2731 unsigned int i, j; 2732 2733 /* Count may include a LF at end of string */ 2734 if (buf[cnt-1] == '\n') 2735 cnt--; 2736 2737 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2738 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2739 return -EINVAL; 2740 2741 memset(wwn, 0, WWN_SZ); 2742 2743 /* Validate and store the new name */ 2744 for (i = 0, j = 0; i < 16; i++) { 2745 if ((*buf >= 'a') && (*buf <= 'f')) 2746 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2747 else if ((*buf >= 'A') && (*buf <= 'F')) 2748 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2749 else if ((*buf >= '0') && (*buf <= '9')) 2750 j = ((j << 4) | (*buf++ - '0')); 2751 else 2752 return -EINVAL; 2753 if (i % 2) { 2754 wwn[i/2] = j & 0xff; 2755 j = 0; 2756 } 2757 } 2758 return 0; 2759 } 2760 /** 2761 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2762 * @dev: class device that is converted into a Scsi_host. 2763 * @attr: device attribute, not used. 2764 * @buf: containing the string lpfc_soft_wwn_key. 2765 * @count: must be size of lpfc_soft_wwn_key. 2766 * 2767 * Returns: 2768 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2769 * length of buf indicates success 2770 **/ 2771 static ssize_t 2772 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2773 const char *buf, size_t count) 2774 { 2775 struct Scsi_Host *shost = class_to_shost(dev); 2776 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2777 struct lpfc_hba *phba = vport->phba; 2778 unsigned int cnt = count; 2779 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2780 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2781 2782 /* 2783 * We're doing a simple sanity check for soft_wwpn setting. 2784 * We require that the user write a specific key to enable 2785 * the soft_wwpn attribute to be settable. Once the attribute 2786 * is written, the enable key resets. If further updates are 2787 * desired, the key must be written again to re-enable the 2788 * attribute. 2789 * 2790 * The "key" is not secret - it is a hardcoded string shown 2791 * here. The intent is to protect against the random user or 2792 * application that is just writing attributes. 2793 */ 2794 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2796 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2797 " be enabled: fawwpn is enabled\n"); 2798 return -EINVAL; 2799 } 2800 2801 /* count may include a LF at end of string */ 2802 if (buf[cnt-1] == '\n') 2803 cnt--; 2804 2805 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2806 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2807 return -EINVAL; 2808 2809 phba->soft_wwn_enable = 1; 2810 2811 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2812 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2813 phba->brd_no); 2814 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2815 " The soft_wwpn feature is not supported by Broadcom."); 2816 2817 return count; 2818 } 2819 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2820 2821 /** 2822 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2823 * @dev: class device that is converted into a Scsi_host. 2824 * @attr: device attribute, not used. 2825 * @buf: on return contains the wwpn in hexadecimal. 2826 * 2827 * Returns: size of formatted string. 2828 **/ 2829 static ssize_t 2830 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2831 char *buf) 2832 { 2833 struct Scsi_Host *shost = class_to_shost(dev); 2834 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2835 struct lpfc_hba *phba = vport->phba; 2836 2837 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2838 (unsigned long long)phba->cfg_soft_wwpn); 2839 } 2840 2841 /** 2842 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2843 * @dev class device that is converted into a Scsi_host. 2844 * @attr: device attribute, not used. 2845 * @buf: contains the wwpn in hexadecimal. 2846 * @count: number of wwpn bytes in buf 2847 * 2848 * Returns: 2849 * -EACCES hba reset not enabled, adapter over temp 2850 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2851 * -EIO error taking adapter offline or online 2852 * value of count on success 2853 **/ 2854 static ssize_t 2855 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2856 const char *buf, size_t count) 2857 { 2858 struct Scsi_Host *shost = class_to_shost(dev); 2859 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2860 struct lpfc_hba *phba = vport->phba; 2861 struct completion online_compl; 2862 int stat1 = 0, stat2 = 0; 2863 unsigned int cnt = count; 2864 u8 wwpn[WWN_SZ]; 2865 int rc; 2866 2867 if (!phba->cfg_enable_hba_reset) 2868 return -EACCES; 2869 spin_lock_irq(&phba->hbalock); 2870 if (phba->over_temp_state == HBA_OVER_TEMP) { 2871 spin_unlock_irq(&phba->hbalock); 2872 return -EACCES; 2873 } 2874 spin_unlock_irq(&phba->hbalock); 2875 /* count may include a LF at end of string */ 2876 if (buf[cnt-1] == '\n') 2877 cnt--; 2878 2879 if (!phba->soft_wwn_enable) 2880 return -EINVAL; 2881 2882 /* lock setting wwpn, wwnn down */ 2883 phba->soft_wwn_enable = 0; 2884 2885 rc = lpfc_wwn_set(buf, cnt, wwpn); 2886 if (rc) { 2887 /* not able to set wwpn, unlock it */ 2888 phba->soft_wwn_enable = 1; 2889 return rc; 2890 } 2891 2892 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2893 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2894 if (phba->cfg_soft_wwnn) 2895 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2896 2897 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2898 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2899 2900 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2901 if (stat1) 2902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2903 "0463 lpfc_soft_wwpn attribute set failed to " 2904 "reinit adapter - %d\n", stat1); 2905 init_completion(&online_compl); 2906 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2907 LPFC_EVT_ONLINE); 2908 if (rc == 0) 2909 return -ENOMEM; 2910 2911 wait_for_completion(&online_compl); 2912 if (stat2) 2913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2914 "0464 lpfc_soft_wwpn attribute set failed to " 2915 "reinit adapter - %d\n", stat2); 2916 return (stat1 || stat2) ? -EIO : count; 2917 } 2918 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2919 2920 /** 2921 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2922 * @dev: class device that is converted into a Scsi_host. 2923 * @attr: device attribute, not used. 2924 * @buf: on return contains the wwnn in hexadecimal. 2925 * 2926 * Returns: size of formatted string. 2927 **/ 2928 static ssize_t 2929 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2930 char *buf) 2931 { 2932 struct Scsi_Host *shost = class_to_shost(dev); 2933 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2934 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2935 (unsigned long long)phba->cfg_soft_wwnn); 2936 } 2937 2938 /** 2939 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2940 * @cdev: class device that is converted into a Scsi_host. 2941 * @buf: contains the ww node name in hexadecimal. 2942 * @count: number of wwnn bytes in buf. 2943 * 2944 * Returns: 2945 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2946 * value of count on success 2947 **/ 2948 static ssize_t 2949 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2950 const char *buf, size_t count) 2951 { 2952 struct Scsi_Host *shost = class_to_shost(dev); 2953 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2954 unsigned int cnt = count; 2955 u8 wwnn[WWN_SZ]; 2956 int rc; 2957 2958 /* count may include a LF at end of string */ 2959 if (buf[cnt-1] == '\n') 2960 cnt--; 2961 2962 if (!phba->soft_wwn_enable) 2963 return -EINVAL; 2964 2965 rc = lpfc_wwn_set(buf, cnt, wwnn); 2966 if (rc) { 2967 /* Allow wwnn to be set many times, as long as the enable 2968 * is set. However, once the wwpn is set, everything locks. 2969 */ 2970 return rc; 2971 } 2972 2973 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2974 2975 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2976 "lpfc%d: soft_wwnn set. Value will take effect upon " 2977 "setting of the soft_wwpn\n", phba->brd_no); 2978 2979 return count; 2980 } 2981 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2982 2983 /** 2984 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2985 * Optimized Access Storage (OAS) operations. 2986 * @dev: class device that is converted into a Scsi_host. 2987 * @attr: device attribute, not used. 2988 * @buf: buffer for passing information. 2989 * 2990 * Returns: 2991 * value of count 2992 **/ 2993 static ssize_t 2994 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2995 char *buf) 2996 { 2997 struct Scsi_Host *shost = class_to_shost(dev); 2998 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2999 3000 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3001 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 3002 } 3003 3004 /** 3005 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 3006 * Optimized Access Storage (OAS) operations. 3007 * @dev: class device that is converted into a Scsi_host. 3008 * @attr: device attribute, not used. 3009 * @buf: buffer for passing information. 3010 * @count: Size of the data buffer. 3011 * 3012 * Returns: 3013 * -EINVAL count is invalid, invalid wwpn byte invalid 3014 * -EPERM oas is not supported by hba 3015 * value of count on success 3016 **/ 3017 static ssize_t 3018 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 3019 const char *buf, size_t count) 3020 { 3021 struct Scsi_Host *shost = class_to_shost(dev); 3022 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3023 unsigned int cnt = count; 3024 uint8_t wwpn[WWN_SZ]; 3025 int rc; 3026 3027 if (!phba->cfg_fof) 3028 return -EPERM; 3029 3030 /* count may include a LF at end of string */ 3031 if (buf[cnt-1] == '\n') 3032 cnt--; 3033 3034 rc = lpfc_wwn_set(buf, cnt, wwpn); 3035 if (rc) 3036 return rc; 3037 3038 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3039 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3040 if (wwn_to_u64(wwpn) == 0) 3041 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 3042 else 3043 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 3044 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3045 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3046 return count; 3047 } 3048 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 3049 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 3050 3051 /** 3052 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 3053 * Optimized Access Storage (OAS) operations. 3054 * @dev: class device that is converted into a Scsi_host. 3055 * @attr: device attribute, not used. 3056 * @buf: buffer for passing information. 3057 * 3058 * Returns: 3059 * value of count 3060 **/ 3061 static ssize_t 3062 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3063 char *buf) 3064 { 3065 struct Scsi_Host *shost = class_to_shost(dev); 3066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3067 3068 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3069 } 3070 3071 /** 3072 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3073 * Optimized Access Storage (OAS) operations. 3074 * @dev: class device that is converted into a Scsi_host. 3075 * @attr: device attribute, not used. 3076 * @buf: buffer for passing information. 3077 * @count: Size of the data buffer. 3078 * 3079 * Returns: 3080 * -EINVAL count is invalid, invalid wwpn byte invalid 3081 * -EPERM oas is not supported by hba 3082 * value of count on success 3083 **/ 3084 static ssize_t 3085 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3086 const char *buf, size_t count) 3087 { 3088 struct Scsi_Host *shost = class_to_shost(dev); 3089 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3090 unsigned int cnt = count; 3091 unsigned long val; 3092 int ret; 3093 3094 if (!phba->cfg_fof) 3095 return -EPERM; 3096 3097 /* count may include a LF at end of string */ 3098 if (buf[cnt-1] == '\n') 3099 cnt--; 3100 3101 ret = kstrtoul(buf, 0, &val); 3102 if (ret || (val > 0x7f)) 3103 return -EINVAL; 3104 3105 if (val) 3106 phba->cfg_oas_priority = (uint8_t)val; 3107 else 3108 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3109 return count; 3110 } 3111 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3112 lpfc_oas_priority_show, lpfc_oas_priority_store); 3113 3114 /** 3115 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3116 * for Optimized Access Storage (OAS) operations. 3117 * @dev: class device that is converted into a Scsi_host. 3118 * @attr: device attribute, not used. 3119 * @buf: buffer for passing information. 3120 * 3121 * Returns: 3122 * value of count on success 3123 **/ 3124 static ssize_t 3125 lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, 3126 char *buf) 3127 { 3128 struct Scsi_Host *shost = class_to_shost(dev); 3129 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3130 3131 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 3132 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3133 } 3134 3135 /** 3136 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3137 * for Optimized Access Storage (OAS) operations. 3138 * @dev: class device that is converted into a Scsi_host. 3139 * @attr: device attribute, not used. 3140 * @buf: buffer for passing information. 3141 * @count: Size of the data buffer. 3142 * 3143 * Returns: 3144 * -EINVAL count is invalid, invalid wwpn byte invalid 3145 * -EPERM oas is not supported by hba 3146 * value of count on success 3147 **/ 3148 static ssize_t 3149 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3150 const char *buf, size_t count) 3151 { 3152 struct Scsi_Host *shost = class_to_shost(dev); 3153 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3154 unsigned int cnt = count; 3155 uint8_t wwpn[WWN_SZ]; 3156 int rc; 3157 3158 if (!phba->cfg_fof) 3159 return -EPERM; 3160 3161 /* count may include a LF at end of string */ 3162 if (buf[cnt-1] == '\n') 3163 cnt--; 3164 3165 rc = lpfc_wwn_set(buf, cnt, wwpn); 3166 if (rc) 3167 return rc; 3168 3169 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3170 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3171 if (wwn_to_u64(wwpn) == 0) 3172 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3173 else 3174 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3175 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3176 if (phba->cfg_oas_priority == 0) 3177 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3178 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3179 return count; 3180 } 3181 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3182 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3183 3184 /** 3185 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3186 * of whether luns will be enabled or disabled 3187 * for Optimized Access Storage (OAS) operations. 3188 * @dev: class device that is converted into a Scsi_host. 3189 * @attr: device attribute, not used. 3190 * @buf: buffer for passing information. 3191 * 3192 * Returns: 3193 * size of formatted string. 3194 **/ 3195 static ssize_t 3196 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3197 char *buf) 3198 { 3199 struct Scsi_Host *shost = class_to_shost(dev); 3200 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3201 3202 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3203 } 3204 3205 /** 3206 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3207 * of whether luns will be enabled or disabled 3208 * for Optimized Access Storage (OAS) operations. 3209 * @dev: class device that is converted into a Scsi_host. 3210 * @attr: device attribute, not used. 3211 * @buf: buffer for passing information. 3212 * @count: Size of the data buffer. 3213 * 3214 * Returns: 3215 * -EINVAL count is invalid, invalid wwpn byte invalid 3216 * -EPERM oas is not supported by hba 3217 * value of count on success 3218 **/ 3219 static ssize_t 3220 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3221 const char *buf, size_t count) 3222 { 3223 struct Scsi_Host *shost = class_to_shost(dev); 3224 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3225 int val = 0; 3226 3227 if (!phba->cfg_fof) 3228 return -EPERM; 3229 3230 if (!isdigit(buf[0])) 3231 return -EINVAL; 3232 3233 if (sscanf(buf, "%i", &val) != 1) 3234 return -EINVAL; 3235 3236 if ((val != 0) && (val != 1)) 3237 return -EINVAL; 3238 3239 phba->cfg_oas_lun_state = val; 3240 return strlen(buf); 3241 } 3242 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3243 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3244 3245 /** 3246 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3247 * Storage (OAS) lun returned by the 3248 * lpfc_oas_lun_show function. 3249 * @dev: class device that is converted into a Scsi_host. 3250 * @attr: device attribute, not used. 3251 * @buf: buffer for passing information. 3252 * 3253 * Returns: 3254 * size of formatted string. 3255 **/ 3256 static ssize_t 3257 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3258 char *buf) 3259 { 3260 struct Scsi_Host *shost = class_to_shost(dev); 3261 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3262 3263 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3264 return -EFAULT; 3265 3266 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3267 } 3268 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3269 lpfc_oas_lun_status_show, NULL); 3270 3271 3272 /** 3273 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3274 * (OAS) operations. 3275 * @phba: lpfc_hba pointer. 3276 * @ndlp: pointer to fcp target node. 3277 * @lun: the fc lun for setting oas state. 3278 * @oas_state: the oas state to be set to the lun. 3279 * 3280 * Returns: 3281 * SUCCESS : 0 3282 * -EPERM OAS is not enabled or not supported by this port. 3283 * 3284 */ 3285 static size_t 3286 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3287 uint8_t tgt_wwpn[], uint64_t lun, 3288 uint32_t oas_state, uint8_t pri) 3289 { 3290 3291 int rc = 0; 3292 3293 if (!phba->cfg_fof) 3294 return -EPERM; 3295 3296 if (oas_state) { 3297 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3298 (struct lpfc_name *)tgt_wwpn, 3299 lun, pri)) 3300 rc = -ENOMEM; 3301 } else { 3302 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3303 (struct lpfc_name *)tgt_wwpn, lun, pri); 3304 } 3305 return rc; 3306 3307 } 3308 3309 /** 3310 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3311 * Access Storage (OAS) operations. 3312 * @phba: lpfc_hba pointer. 3313 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3314 * @tgt_wwpn: wwpn of the target associated with the returned lun 3315 * @lun_status: status of the lun returned lun 3316 * 3317 * Returns the first or next lun enabled for OAS operations for the vport/target 3318 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3319 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3320 * 3321 * Return: 3322 * lun that is OAS enabled for the vport/target 3323 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3324 */ 3325 static uint64_t 3326 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3327 uint8_t tgt_wwpn[], uint32_t *lun_status, 3328 uint32_t *lun_pri) 3329 { 3330 uint64_t found_lun; 3331 3332 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3333 return NOT_OAS_ENABLED_LUN; 3334 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3335 phba->sli4_hba.oas_next_vpt_wwpn, 3336 (struct lpfc_name *) 3337 phba->sli4_hba.oas_next_tgt_wwpn, 3338 &phba->sli4_hba.oas_next_lun, 3339 (struct lpfc_name *)vpt_wwpn, 3340 (struct lpfc_name *)tgt_wwpn, 3341 &found_lun, lun_status, lun_pri)) 3342 return found_lun; 3343 else 3344 return NOT_OAS_ENABLED_LUN; 3345 } 3346 3347 /** 3348 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3349 * @phba: lpfc_hba pointer. 3350 * @vpt_wwpn: vport wwpn by reference. 3351 * @tgt_wwpn: target wwpn by reference. 3352 * @lun: the fc lun for setting oas state. 3353 * @oas_state: the oas state to be set to the oas_lun. 3354 * 3355 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3356 * a lun for OAS operations. 3357 * 3358 * Return: 3359 * SUCCESS: 0 3360 * -ENOMEM: failed to enable an lun for OAS operations 3361 * -EPERM: OAS is not enabled 3362 */ 3363 static ssize_t 3364 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3365 uint8_t tgt_wwpn[], uint64_t lun, 3366 uint32_t oas_state, uint8_t pri) 3367 { 3368 3369 int rc; 3370 3371 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3372 oas_state, pri); 3373 return rc; 3374 } 3375 3376 /** 3377 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3378 * @dev: class device that is converted into a Scsi_host. 3379 * @attr: device attribute, not used. 3380 * @buf: buffer for passing information. 3381 * 3382 * This routine returns a lun enabled for OAS each time the function 3383 * is called. 3384 * 3385 * Returns: 3386 * SUCCESS: size of formatted string. 3387 * -EFAULT: target or vport wwpn was not set properly. 3388 * -EPERM: oas is not enabled. 3389 **/ 3390 static ssize_t 3391 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3392 char *buf) 3393 { 3394 struct Scsi_Host *shost = class_to_shost(dev); 3395 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3396 3397 uint64_t oas_lun; 3398 int len = 0; 3399 3400 if (!phba->cfg_fof) 3401 return -EPERM; 3402 3403 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3404 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3405 return -EFAULT; 3406 3407 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3408 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3409 return -EFAULT; 3410 3411 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3412 phba->cfg_oas_tgt_wwpn, 3413 &phba->cfg_oas_lun_status, 3414 &phba->cfg_oas_priority); 3415 if (oas_lun != NOT_OAS_ENABLED_LUN) 3416 phba->cfg_oas_flags |= OAS_LUN_VALID; 3417 3418 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3419 3420 return len; 3421 } 3422 3423 /** 3424 * lpfc_oas_lun_store - Sets the OAS state for lun 3425 * @dev: class device that is converted into a Scsi_host. 3426 * @attr: device attribute, not used. 3427 * @buf: buffer for passing information. 3428 * 3429 * This function sets the OAS state for lun. Before this function is called, 3430 * the vport wwpn, target wwpn, and oas state need to be set. 3431 * 3432 * Returns: 3433 * SUCCESS: size of formatted string. 3434 * -EFAULT: target or vport wwpn was not set properly. 3435 * -EPERM: oas is not enabled. 3436 * size of formatted string. 3437 **/ 3438 static ssize_t 3439 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3440 const char *buf, size_t count) 3441 { 3442 struct Scsi_Host *shost = class_to_shost(dev); 3443 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3444 uint64_t scsi_lun; 3445 uint32_t pri; 3446 ssize_t rc; 3447 3448 if (!phba->cfg_fof) 3449 return -EPERM; 3450 3451 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3452 return -EFAULT; 3453 3454 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3455 return -EFAULT; 3456 3457 if (!isdigit(buf[0])) 3458 return -EINVAL; 3459 3460 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3461 return -EINVAL; 3462 3463 pri = phba->cfg_oas_priority; 3464 if (pri == 0) 3465 pri = phba->cfg_XLanePriority; 3466 3467 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3468 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3469 "priority 0x%x with oas state %d\n", 3470 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3471 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3472 pri, phba->cfg_oas_lun_state); 3473 3474 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3475 phba->cfg_oas_tgt_wwpn, scsi_lun, 3476 phba->cfg_oas_lun_state, pri); 3477 if (rc) 3478 return rc; 3479 3480 return count; 3481 } 3482 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3483 lpfc_oas_lun_show, lpfc_oas_lun_store); 3484 3485 int lpfc_enable_nvmet_cnt; 3486 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3487 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3488 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3489 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3490 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3491 3492 static int lpfc_poll = 0; 3493 module_param(lpfc_poll, int, S_IRUGO); 3494 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3495 " 0 - none," 3496 " 1 - poll with interrupts enabled" 3497 " 3 - poll and disable FCP ring interrupts"); 3498 3499 static DEVICE_ATTR_RW(lpfc_poll); 3500 3501 int lpfc_no_hba_reset_cnt; 3502 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3503 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3504 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3505 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3506 3507 LPFC_ATTR(sli_mode, 0, 0, 3, 3508 "SLI mode selector:" 3509 " 0 - auto (SLI-3 if supported)," 3510 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3511 " 3 - select SLI-3"); 3512 3513 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3514 "Enable NPIV functionality"); 3515 3516 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3517 "FCF Fast failover=1 Priority failover=2"); 3518 3519 /* 3520 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3521 # 0x0 = disabled, XRI/OXID use not tracked. 3522 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3523 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3524 */ 3525 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3526 "Enable RRQ functionality"); 3527 3528 /* 3529 # lpfc_suppress_link_up: Bring link up at initialization 3530 # 0x0 = bring link up (issue MBX_INIT_LINK) 3531 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3532 # 0x2 = never bring up link 3533 # Default value is 0. 3534 */ 3535 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3536 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3537 "Suppress Link Up at initialization"); 3538 3539 static ssize_t 3540 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3541 { 3542 struct Scsi_Host *shost = class_to_shost(dev); 3543 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3544 3545 return scnprintf(buf, PAGE_SIZE, "%d\n", 3546 phba->sli4_hba.pc_sli4_params.pls); 3547 } 3548 static DEVICE_ATTR(pls, 0444, 3549 lpfc_pls_show, NULL); 3550 3551 static ssize_t 3552 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3553 { 3554 struct Scsi_Host *shost = class_to_shost(dev); 3555 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3556 3557 return scnprintf(buf, PAGE_SIZE, "%d\n", 3558 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3559 } 3560 static DEVICE_ATTR(pt, 0444, 3561 lpfc_pt_show, NULL); 3562 3563 /* 3564 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3565 # 1 - (1024) 3566 # 2 - (2048) 3567 # 3 - (3072) 3568 # 4 - (4096) 3569 # 5 - (5120) 3570 */ 3571 static ssize_t 3572 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3573 { 3574 struct Scsi_Host *shost = class_to_shost(dev); 3575 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3576 3577 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3578 } 3579 3580 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3581 lpfc_iocb_hw_show, NULL); 3582 static ssize_t 3583 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3584 { 3585 struct Scsi_Host *shost = class_to_shost(dev); 3586 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3587 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3588 3589 return scnprintf(buf, PAGE_SIZE, "%d\n", 3590 pring ? pring->txq_max : 0); 3591 } 3592 3593 static DEVICE_ATTR(txq_hw, S_IRUGO, 3594 lpfc_txq_hw_show, NULL); 3595 static ssize_t 3596 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3597 char *buf) 3598 { 3599 struct Scsi_Host *shost = class_to_shost(dev); 3600 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3601 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3602 3603 return scnprintf(buf, PAGE_SIZE, "%d\n", 3604 pring ? pring->txcmplq_max : 0); 3605 } 3606 3607 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3608 lpfc_txcmplq_hw_show, NULL); 3609 3610 /* 3611 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3612 # until the timer expires. Value range is [0,255]. Default value is 30. 3613 */ 3614 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3615 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3616 module_param(lpfc_nodev_tmo, int, 0); 3617 MODULE_PARM_DESC(lpfc_nodev_tmo, 3618 "Seconds driver will hold I/O waiting " 3619 "for a device to come back"); 3620 3621 /** 3622 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3623 * @dev: class converted to a Scsi_host structure. 3624 * @attr: device attribute, not used. 3625 * @buf: on return contains the dev loss timeout in decimal. 3626 * 3627 * Returns: size of formatted string. 3628 **/ 3629 static ssize_t 3630 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3631 char *buf) 3632 { 3633 struct Scsi_Host *shost = class_to_shost(dev); 3634 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3635 3636 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3637 } 3638 3639 /** 3640 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3641 * @vport: lpfc vport structure pointer. 3642 * @val: contains the nodev timeout value. 3643 * 3644 * Description: 3645 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3646 * a kernel error message is printed and zero is returned. 3647 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3648 * Otherwise nodev tmo is set to the default value. 3649 * 3650 * Returns: 3651 * zero if already set or if val is in range 3652 * -EINVAL val out of range 3653 **/ 3654 static int 3655 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3656 { 3657 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3658 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3659 if (val != LPFC_DEF_DEVLOSS_TMO) 3660 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3661 "0407 Ignoring lpfc_nodev_tmo module " 3662 "parameter because lpfc_devloss_tmo " 3663 "is set.\n"); 3664 return 0; 3665 } 3666 3667 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3668 vport->cfg_nodev_tmo = val; 3669 vport->cfg_devloss_tmo = val; 3670 return 0; 3671 } 3672 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3673 "0400 lpfc_nodev_tmo attribute cannot be set to" 3674 " %d, allowed range is [%d, %d]\n", 3675 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3676 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3677 return -EINVAL; 3678 } 3679 3680 /** 3681 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3682 * @vport: lpfc vport structure pointer. 3683 * 3684 * Description: 3685 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3686 **/ 3687 static void 3688 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3689 { 3690 struct Scsi_Host *shost; 3691 struct lpfc_nodelist *ndlp; 3692 #if (IS_ENABLED(CONFIG_NVME_FC)) 3693 struct lpfc_nvme_rport *rport; 3694 struct nvme_fc_remote_port *remoteport = NULL; 3695 #endif 3696 3697 shost = lpfc_shost_from_vport(vport); 3698 spin_lock_irq(shost->host_lock); 3699 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3700 if (!NLP_CHK_NODE_ACT(ndlp)) 3701 continue; 3702 if (ndlp->rport) 3703 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3704 #if (IS_ENABLED(CONFIG_NVME_FC)) 3705 spin_lock(&vport->phba->hbalock); 3706 rport = lpfc_ndlp_get_nrport(ndlp); 3707 if (rport) 3708 remoteport = rport->remoteport; 3709 spin_unlock(&vport->phba->hbalock); 3710 if (rport && remoteport) 3711 nvme_fc_set_remoteport_devloss(remoteport, 3712 vport->cfg_devloss_tmo); 3713 #endif 3714 } 3715 spin_unlock_irq(shost->host_lock); 3716 } 3717 3718 /** 3719 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3720 * @vport: lpfc vport structure pointer. 3721 * @val: contains the tmo value. 3722 * 3723 * Description: 3724 * If the devloss tmo is already set or the vport dev loss tmo has changed 3725 * then a kernel error message is printed and zero is returned. 3726 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3727 * Otherwise nodev tmo is set to the default value. 3728 * 3729 * Returns: 3730 * zero if already set or if val is in range 3731 * -EINVAL val out of range 3732 **/ 3733 static int 3734 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3735 { 3736 if (vport->dev_loss_tmo_changed || 3737 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3738 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3739 "0401 Ignoring change to lpfc_nodev_tmo " 3740 "because lpfc_devloss_tmo is set.\n"); 3741 return 0; 3742 } 3743 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3744 vport->cfg_nodev_tmo = val; 3745 vport->cfg_devloss_tmo = val; 3746 /* 3747 * For compat: set the fc_host dev loss so new rports 3748 * will get the value. 3749 */ 3750 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3751 lpfc_update_rport_devloss_tmo(vport); 3752 return 0; 3753 } 3754 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3755 "0403 lpfc_nodev_tmo attribute cannot be set to " 3756 "%d, allowed range is [%d, %d]\n", 3757 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3758 return -EINVAL; 3759 } 3760 3761 lpfc_vport_param_store(nodev_tmo) 3762 3763 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3764 3765 /* 3766 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3767 # disappear until the timer expires. Value range is [0,255]. Default 3768 # value is 30. 3769 */ 3770 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3771 MODULE_PARM_DESC(lpfc_devloss_tmo, 3772 "Seconds driver will hold I/O waiting " 3773 "for a device to come back"); 3774 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3775 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3776 lpfc_vport_param_show(devloss_tmo) 3777 3778 /** 3779 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3780 * @vport: lpfc vport structure pointer. 3781 * @val: contains the tmo value. 3782 * 3783 * Description: 3784 * If val is in a valid range then set the vport nodev tmo, 3785 * devloss tmo, also set the vport dev loss tmo changed flag. 3786 * Else a kernel error message is printed. 3787 * 3788 * Returns: 3789 * zero if val is in range 3790 * -EINVAL val out of range 3791 **/ 3792 static int 3793 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3794 { 3795 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3796 vport->cfg_nodev_tmo = val; 3797 vport->cfg_devloss_tmo = val; 3798 vport->dev_loss_tmo_changed = 1; 3799 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3800 lpfc_update_rport_devloss_tmo(vport); 3801 return 0; 3802 } 3803 3804 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3805 "0404 lpfc_devloss_tmo attribute cannot be set to " 3806 "%d, allowed range is [%d, %d]\n", 3807 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3808 return -EINVAL; 3809 } 3810 3811 lpfc_vport_param_store(devloss_tmo) 3812 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3813 3814 /* 3815 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3816 * lpfc_suppress_rsp = 0 Disable 3817 * lpfc_suppress_rsp = 1 Enable (default) 3818 * 3819 */ 3820 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3821 "Enable suppress rsp feature is firmware supports it"); 3822 3823 /* 3824 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3825 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3826 * lpfc_nvmet_mrq = 1 use a single RQ pair 3827 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3828 * 3829 */ 3830 LPFC_ATTR_R(nvmet_mrq, 3831 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3832 "Specify number of RQ pairs for processing NVMET cmds"); 3833 3834 /* 3835 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3836 * to each NVMET RQ. Range 64 to 2048, default is 512. 3837 */ 3838 LPFC_ATTR_R(nvmet_mrq_post, 3839 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3840 LPFC_NVMET_RQE_DEF_COUNT, 3841 "Specify number of RQ buffers to initially post"); 3842 3843 /* 3844 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3845 * Supported Values: 1 - register just FCP 3846 * 3 - register both FCP and NVME 3847 * Supported values are [1,3]. Default value is 3 3848 */ 3849 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3850 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3851 "Enable FC4 Protocol support - FCP / NVME"); 3852 3853 /* 3854 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3855 # deluged with LOTS of information. 3856 # You can set a bit mask to record specific types of verbose messages: 3857 # See lpfc_logmsh.h for definitions. 3858 */ 3859 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3860 "Verbose logging bit-mask"); 3861 3862 /* 3863 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3864 # objects that have been registered with the nameserver after login. 3865 */ 3866 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3867 "Deregister nameserver objects before LOGO"); 3868 3869 /* 3870 # lun_queue_depth: This parameter is used to limit the number of outstanding 3871 # commands per FCP LUN. Value range is [1,512]. Default value is 30. 3872 */ 3873 LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 512, 3874 "Max number of FCP commands we can queue to a specific LUN"); 3875 3876 /* 3877 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3878 # commands per target port. Value range is [10,65535]. Default value is 65535. 3879 */ 3880 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3881 module_param(lpfc_tgt_queue_depth, uint, 0444); 3882 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3883 lpfc_vport_param_show(tgt_queue_depth); 3884 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3885 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3886 3887 /** 3888 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3889 * @phba: pointer the the adapter structure. 3890 * @val: integer attribute value. 3891 * 3892 * Description: Sets the parameter to the new value. 3893 * 3894 * Returns: 3895 * zero on success 3896 * -EINVAL if val is invalid 3897 */ 3898 static int 3899 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3900 { 3901 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3902 struct lpfc_nodelist *ndlp; 3903 3904 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3905 return -EINVAL; 3906 3907 if (val == vport->cfg_tgt_queue_depth) 3908 return 0; 3909 3910 spin_lock_irq(shost->host_lock); 3911 vport->cfg_tgt_queue_depth = val; 3912 3913 /* Next loop thru nodelist and change cmd_qdepth */ 3914 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3915 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3916 3917 spin_unlock_irq(shost->host_lock); 3918 return 0; 3919 } 3920 3921 lpfc_vport_param_store(tgt_queue_depth); 3922 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3923 3924 /* 3925 # hba_queue_depth: This parameter is used to limit the number of outstanding 3926 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3927 # value is greater than the maximum number of exchanges supported by the HBA, 3928 # then maximum number of exchanges supported by the HBA is used to determine 3929 # the hba_queue_depth. 3930 */ 3931 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3932 "Max number of FCP commands we can queue to a lpfc HBA"); 3933 3934 /* 3935 # peer_port_login: This parameter allows/prevents logins 3936 # between peer ports hosted on the same physical port. 3937 # When this parameter is set 0 peer ports of same physical port 3938 # are not allowed to login to each other. 3939 # When this parameter is set 1 peer ports of same physical port 3940 # are allowed to login to each other. 3941 # Default value of this parameter is 0. 3942 */ 3943 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3944 "Allow peer ports on the same physical port to login to each " 3945 "other."); 3946 3947 /* 3948 # restrict_login: This parameter allows/prevents logins 3949 # between Virtual Ports and remote initiators. 3950 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3951 # other initiators and will attempt to PLOGI all remote ports. 3952 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3953 # remote ports and will not attempt to PLOGI to other initiators. 3954 # This parameter does not restrict to the physical port. 3955 # This parameter does not restrict logins to Fabric resident remote ports. 3956 # Default value of this parameter is 1. 3957 */ 3958 static int lpfc_restrict_login = 1; 3959 module_param(lpfc_restrict_login, int, S_IRUGO); 3960 MODULE_PARM_DESC(lpfc_restrict_login, 3961 "Restrict virtual ports login to remote initiators."); 3962 lpfc_vport_param_show(restrict_login); 3963 3964 /** 3965 * lpfc_restrict_login_init - Set the vport restrict login flag 3966 * @vport: lpfc vport structure pointer. 3967 * @val: contains the restrict login value. 3968 * 3969 * Description: 3970 * If val is not in a valid range then log a kernel error message and set 3971 * the vport restrict login to one. 3972 * If the port type is physical clear the restrict login flag and return. 3973 * Else set the restrict login flag to val. 3974 * 3975 * Returns: 3976 * zero if val is in range 3977 * -EINVAL val out of range 3978 **/ 3979 static int 3980 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3981 { 3982 if (val < 0 || val > 1) { 3983 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3984 "0422 lpfc_restrict_login attribute cannot " 3985 "be set to %d, allowed range is [0, 1]\n", 3986 val); 3987 vport->cfg_restrict_login = 1; 3988 return -EINVAL; 3989 } 3990 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3991 vport->cfg_restrict_login = 0; 3992 return 0; 3993 } 3994 vport->cfg_restrict_login = val; 3995 return 0; 3996 } 3997 3998 /** 3999 * lpfc_restrict_login_set - Set the vport restrict login flag 4000 * @vport: lpfc vport structure pointer. 4001 * @val: contains the restrict login value. 4002 * 4003 * Description: 4004 * If val is not in a valid range then log a kernel error message and set 4005 * the vport restrict login to one. 4006 * If the port type is physical and the val is not zero log a kernel 4007 * error message, clear the restrict login flag and return zero. 4008 * Else set the restrict login flag to val. 4009 * 4010 * Returns: 4011 * zero if val is in range 4012 * -EINVAL val out of range 4013 **/ 4014 static int 4015 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 4016 { 4017 if (val < 0 || val > 1) { 4018 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4019 "0425 lpfc_restrict_login attribute cannot " 4020 "be set to %d, allowed range is [0, 1]\n", 4021 val); 4022 vport->cfg_restrict_login = 1; 4023 return -EINVAL; 4024 } 4025 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 4026 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4027 "0468 lpfc_restrict_login must be 0 for " 4028 "Physical ports.\n"); 4029 vport->cfg_restrict_login = 0; 4030 return 0; 4031 } 4032 vport->cfg_restrict_login = val; 4033 return 0; 4034 } 4035 lpfc_vport_param_store(restrict_login); 4036 static DEVICE_ATTR_RW(lpfc_restrict_login); 4037 4038 /* 4039 # Some disk devices have a "select ID" or "select Target" capability. 4040 # From a protocol standpoint "select ID" usually means select the 4041 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 4042 # annex" which contains a table that maps a "select ID" (a number 4043 # between 0 and 7F) to an ALPA. By default, for compatibility with 4044 # older drivers, the lpfc driver scans this table from low ALPA to high 4045 # ALPA. 4046 # 4047 # Turning on the scan-down variable (on = 1, off = 0) will 4048 # cause the lpfc driver to use an inverted table, effectively 4049 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 4050 # 4051 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 4052 # and will not work across a fabric. Also this parameter will take 4053 # effect only in the case when ALPA map is not available.) 4054 */ 4055 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 4056 "Start scanning for devices from highest ALPA to lowest"); 4057 4058 /* 4059 # lpfc_topology: link topology for init link 4060 # 0x0 = attempt loop mode then point-to-point 4061 # 0x01 = internal loopback mode 4062 # 0x02 = attempt point-to-point mode only 4063 # 0x04 = attempt loop mode only 4064 # 0x06 = attempt point-to-point mode then loop 4065 # Set point-to-point mode if you want to run as an N_Port. 4066 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4067 # Default value is 0. 4068 */ 4069 LPFC_ATTR(topology, 0, 0, 6, 4070 "Select Fibre Channel topology"); 4071 4072 /** 4073 * lpfc_topology_set - Set the adapters topology field 4074 * @phba: lpfc_hba pointer. 4075 * @val: topology value. 4076 * 4077 * Description: 4078 * If val is in a valid range then set the adapter's topology field and 4079 * issue a lip; if the lip fails reset the topology to the old value. 4080 * 4081 * If the value is not in range log a kernel error message and return an error. 4082 * 4083 * Returns: 4084 * zero if val is in range and lip okay 4085 * non-zero return value from lpfc_issue_lip() 4086 * -EINVAL val out of range 4087 **/ 4088 static ssize_t 4089 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4090 const char *buf, size_t count) 4091 { 4092 struct Scsi_Host *shost = class_to_shost(dev); 4093 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4094 struct lpfc_hba *phba = vport->phba; 4095 int val = 0; 4096 int nolip = 0; 4097 const char *val_buf = buf; 4098 int err; 4099 uint32_t prev_val; 4100 4101 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4102 nolip = 1; 4103 val_buf = &buf[strlen("nolip ")]; 4104 } 4105 4106 if (!isdigit(val_buf[0])) 4107 return -EINVAL; 4108 if (sscanf(val_buf, "%i", &val) != 1) 4109 return -EINVAL; 4110 4111 if (val >= 0 && val <= 6) { 4112 prev_val = phba->cfg_topology; 4113 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4114 val == 4) { 4115 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4116 "3113 Loop mode not supported at speed %d\n", 4117 val); 4118 return -EINVAL; 4119 } 4120 /* 4121 * The 'topology' is not a configurable parameter if : 4122 * - persistent topology enabled 4123 * - G7/G6 with no private loop support 4124 */ 4125 4126 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4127 (!phba->sli4_hba.pc_sli4_params.pls && 4128 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4129 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) && 4130 val == 4) { 4131 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4132 "3114 Loop mode not supported\n"); 4133 return -EINVAL; 4134 } 4135 phba->cfg_topology = val; 4136 if (nolip) 4137 return strlen(buf); 4138 4139 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4140 "3054 lpfc_topology changed from %d to %d\n", 4141 prev_val, val); 4142 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4143 phba->fc_topology_changed = 1; 4144 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4145 if (err) { 4146 phba->cfg_topology = prev_val; 4147 return -EINVAL; 4148 } else 4149 return strlen(buf); 4150 } 4151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4152 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4153 "allowed range is [0, 6]\n", 4154 phba->brd_no, val); 4155 return -EINVAL; 4156 } 4157 4158 lpfc_param_show(topology) 4159 static DEVICE_ATTR_RW(lpfc_topology); 4160 4161 /** 4162 * lpfc_static_vport_show: Read callback function for 4163 * lpfc_static_vport sysfs file. 4164 * @dev: Pointer to class device object. 4165 * @attr: device attribute structure. 4166 * @buf: Data buffer. 4167 * 4168 * This function is the read call back function for 4169 * lpfc_static_vport sysfs file. The lpfc_static_vport 4170 * sysfs file report the mageability of the vport. 4171 **/ 4172 static ssize_t 4173 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4174 char *buf) 4175 { 4176 struct Scsi_Host *shost = class_to_shost(dev); 4177 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4178 if (vport->vport_flag & STATIC_VPORT) 4179 sprintf(buf, "1\n"); 4180 else 4181 sprintf(buf, "0\n"); 4182 4183 return strlen(buf); 4184 } 4185 4186 /* 4187 * Sysfs attribute to control the statistical data collection. 4188 */ 4189 static DEVICE_ATTR_RO(lpfc_static_vport); 4190 4191 /** 4192 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4193 * @dev: Pointer to class device. 4194 * @buf: Data buffer. 4195 * @count: Size of the data buffer. 4196 * 4197 * This function get called when a user write to the lpfc_stat_data_ctrl 4198 * sysfs file. This function parse the command written to the sysfs file 4199 * and take appropriate action. These commands are used for controlling 4200 * driver statistical data collection. 4201 * Following are the command this function handles. 4202 * 4203 * setbucket <bucket_type> <base> <step> 4204 * = Set the latency buckets. 4205 * destroybucket = destroy all the buckets. 4206 * start = start data collection 4207 * stop = stop data collection 4208 * reset = reset the collected data 4209 **/ 4210 static ssize_t 4211 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4212 const char *buf, size_t count) 4213 { 4214 struct Scsi_Host *shost = class_to_shost(dev); 4215 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4216 struct lpfc_hba *phba = vport->phba; 4217 #define LPFC_MAX_DATA_CTRL_LEN 1024 4218 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4219 unsigned long i; 4220 char *str_ptr, *token; 4221 struct lpfc_vport **vports; 4222 struct Scsi_Host *v_shost; 4223 char *bucket_type_str, *base_str, *step_str; 4224 unsigned long base, step, bucket_type; 4225 4226 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4227 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4228 return -EINVAL; 4229 4230 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4231 str_ptr = &bucket_data[0]; 4232 /* Ignore this token - this is command token */ 4233 token = strsep(&str_ptr, "\t "); 4234 if (!token) 4235 return -EINVAL; 4236 4237 bucket_type_str = strsep(&str_ptr, "\t "); 4238 if (!bucket_type_str) 4239 return -EINVAL; 4240 4241 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4242 bucket_type = LPFC_LINEAR_BUCKET; 4243 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4244 bucket_type = LPFC_POWER2_BUCKET; 4245 else 4246 return -EINVAL; 4247 4248 base_str = strsep(&str_ptr, "\t "); 4249 if (!base_str) 4250 return -EINVAL; 4251 base = simple_strtoul(base_str, NULL, 0); 4252 4253 step_str = strsep(&str_ptr, "\t "); 4254 if (!step_str) 4255 return -EINVAL; 4256 step = simple_strtoul(step_str, NULL, 0); 4257 if (!step) 4258 return -EINVAL; 4259 4260 /* Block the data collection for every vport */ 4261 vports = lpfc_create_vport_work_array(phba); 4262 if (vports == NULL) 4263 return -ENOMEM; 4264 4265 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4266 v_shost = lpfc_shost_from_vport(vports[i]); 4267 spin_lock_irq(v_shost->host_lock); 4268 /* Block and reset data collection */ 4269 vports[i]->stat_data_blocked = 1; 4270 if (vports[i]->stat_data_enabled) 4271 lpfc_vport_reset_stat_data(vports[i]); 4272 spin_unlock_irq(v_shost->host_lock); 4273 } 4274 4275 /* Set the bucket attributes */ 4276 phba->bucket_type = bucket_type; 4277 phba->bucket_base = base; 4278 phba->bucket_step = step; 4279 4280 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4281 v_shost = lpfc_shost_from_vport(vports[i]); 4282 4283 /* Unblock data collection */ 4284 spin_lock_irq(v_shost->host_lock); 4285 vports[i]->stat_data_blocked = 0; 4286 spin_unlock_irq(v_shost->host_lock); 4287 } 4288 lpfc_destroy_vport_work_array(phba, vports); 4289 return strlen(buf); 4290 } 4291 4292 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4293 vports = lpfc_create_vport_work_array(phba); 4294 if (vports == NULL) 4295 return -ENOMEM; 4296 4297 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4298 v_shost = lpfc_shost_from_vport(vports[i]); 4299 spin_lock_irq(shost->host_lock); 4300 vports[i]->stat_data_blocked = 1; 4301 lpfc_free_bucket(vport); 4302 vport->stat_data_enabled = 0; 4303 vports[i]->stat_data_blocked = 0; 4304 spin_unlock_irq(shost->host_lock); 4305 } 4306 lpfc_destroy_vport_work_array(phba, vports); 4307 phba->bucket_type = LPFC_NO_BUCKET; 4308 phba->bucket_base = 0; 4309 phba->bucket_step = 0; 4310 return strlen(buf); 4311 } 4312 4313 if (!strncmp(buf, "start", strlen("start"))) { 4314 /* If no buckets configured return error */ 4315 if (phba->bucket_type == LPFC_NO_BUCKET) 4316 return -EINVAL; 4317 spin_lock_irq(shost->host_lock); 4318 if (vport->stat_data_enabled) { 4319 spin_unlock_irq(shost->host_lock); 4320 return strlen(buf); 4321 } 4322 lpfc_alloc_bucket(vport); 4323 vport->stat_data_enabled = 1; 4324 spin_unlock_irq(shost->host_lock); 4325 return strlen(buf); 4326 } 4327 4328 if (!strncmp(buf, "stop", strlen("stop"))) { 4329 spin_lock_irq(shost->host_lock); 4330 if (vport->stat_data_enabled == 0) { 4331 spin_unlock_irq(shost->host_lock); 4332 return strlen(buf); 4333 } 4334 lpfc_free_bucket(vport); 4335 vport->stat_data_enabled = 0; 4336 spin_unlock_irq(shost->host_lock); 4337 return strlen(buf); 4338 } 4339 4340 if (!strncmp(buf, "reset", strlen("reset"))) { 4341 if ((phba->bucket_type == LPFC_NO_BUCKET) 4342 || !vport->stat_data_enabled) 4343 return strlen(buf); 4344 spin_lock_irq(shost->host_lock); 4345 vport->stat_data_blocked = 1; 4346 lpfc_vport_reset_stat_data(vport); 4347 vport->stat_data_blocked = 0; 4348 spin_unlock_irq(shost->host_lock); 4349 return strlen(buf); 4350 } 4351 return -EINVAL; 4352 } 4353 4354 4355 /** 4356 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4357 * @dev: Pointer to class device object. 4358 * @buf: Data buffer. 4359 * 4360 * This function is the read call back function for 4361 * lpfc_stat_data_ctrl sysfs file. This function report the 4362 * current statistical data collection state. 4363 **/ 4364 static ssize_t 4365 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4366 char *buf) 4367 { 4368 struct Scsi_Host *shost = class_to_shost(dev); 4369 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4370 struct lpfc_hba *phba = vport->phba; 4371 int index = 0; 4372 int i; 4373 char *bucket_type; 4374 unsigned long bucket_value; 4375 4376 switch (phba->bucket_type) { 4377 case LPFC_LINEAR_BUCKET: 4378 bucket_type = "linear"; 4379 break; 4380 case LPFC_POWER2_BUCKET: 4381 bucket_type = "power2"; 4382 break; 4383 default: 4384 bucket_type = "No Bucket"; 4385 break; 4386 } 4387 4388 sprintf(&buf[index], "Statistical Data enabled :%d, " 4389 "blocked :%d, Bucket type :%s, Bucket base :%d," 4390 " Bucket step :%d\nLatency Ranges :", 4391 vport->stat_data_enabled, vport->stat_data_blocked, 4392 bucket_type, phba->bucket_base, phba->bucket_step); 4393 index = strlen(buf); 4394 if (phba->bucket_type != LPFC_NO_BUCKET) { 4395 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4396 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4397 bucket_value = phba->bucket_base + 4398 phba->bucket_step * i; 4399 else 4400 bucket_value = phba->bucket_base + 4401 (1 << i) * phba->bucket_step; 4402 4403 if (index + 10 > PAGE_SIZE) 4404 break; 4405 sprintf(&buf[index], "%08ld ", bucket_value); 4406 index = strlen(buf); 4407 } 4408 } 4409 sprintf(&buf[index], "\n"); 4410 return strlen(buf); 4411 } 4412 4413 /* 4414 * Sysfs attribute to control the statistical data collection. 4415 */ 4416 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4417 4418 /* 4419 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4420 */ 4421 4422 /* 4423 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4424 * for each target. 4425 */ 4426 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4427 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4428 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4429 4430 4431 /** 4432 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4433 * @filp: sysfs file 4434 * @kobj: Pointer to the kernel object 4435 * @bin_attr: Attribute object 4436 * @buff: Buffer pointer 4437 * @off: File offset 4438 * @count: Buffer size 4439 * 4440 * This function is the read call back function for lpfc_drvr_stat_data 4441 * sysfs file. This function export the statistical data to user 4442 * applications. 4443 **/ 4444 static ssize_t 4445 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4446 struct bin_attribute *bin_attr, 4447 char *buf, loff_t off, size_t count) 4448 { 4449 struct device *dev = container_of(kobj, struct device, 4450 kobj); 4451 struct Scsi_Host *shost = class_to_shost(dev); 4452 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4453 struct lpfc_hba *phba = vport->phba; 4454 int i = 0, index = 0; 4455 unsigned long nport_index; 4456 struct lpfc_nodelist *ndlp = NULL; 4457 nport_index = (unsigned long)off / 4458 MAX_STAT_DATA_SIZE_PER_TARGET; 4459 4460 if (!vport->stat_data_enabled || vport->stat_data_blocked 4461 || (phba->bucket_type == LPFC_NO_BUCKET)) 4462 return 0; 4463 4464 spin_lock_irq(shost->host_lock); 4465 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4466 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 4467 continue; 4468 4469 if (nport_index > 0) { 4470 nport_index--; 4471 continue; 4472 } 4473 4474 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4475 > count) 4476 break; 4477 4478 if (!ndlp->lat_data) 4479 continue; 4480 4481 /* Print the WWN */ 4482 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4483 ndlp->nlp_portname.u.wwn[0], 4484 ndlp->nlp_portname.u.wwn[1], 4485 ndlp->nlp_portname.u.wwn[2], 4486 ndlp->nlp_portname.u.wwn[3], 4487 ndlp->nlp_portname.u.wwn[4], 4488 ndlp->nlp_portname.u.wwn[5], 4489 ndlp->nlp_portname.u.wwn[6], 4490 ndlp->nlp_portname.u.wwn[7]); 4491 4492 index = strlen(buf); 4493 4494 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4495 sprintf(&buf[index], "%010u,", 4496 ndlp->lat_data[i].cmd_count); 4497 index = strlen(buf); 4498 } 4499 sprintf(&buf[index], "\n"); 4500 index = strlen(buf); 4501 } 4502 spin_unlock_irq(shost->host_lock); 4503 return index; 4504 } 4505 4506 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4507 .attr = { 4508 .name = "lpfc_drvr_stat_data", 4509 .mode = S_IRUSR, 4510 }, 4511 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4512 .read = sysfs_drvr_stat_data_read, 4513 .write = NULL, 4514 }; 4515 4516 /* 4517 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4518 # connection. 4519 # Value range is [0,16]. Default value is 0. 4520 */ 4521 /** 4522 * lpfc_link_speed_set - Set the adapters link speed 4523 * @phba: lpfc_hba pointer. 4524 * @val: link speed value. 4525 * 4526 * Description: 4527 * If val is in a valid range then set the adapter's link speed field and 4528 * issue a lip; if the lip fails reset the link speed to the old value. 4529 * 4530 * Notes: 4531 * If the value is not in range log a kernel error message and return an error. 4532 * 4533 * Returns: 4534 * zero if val is in range and lip okay. 4535 * non-zero return value from lpfc_issue_lip() 4536 * -EINVAL val out of range 4537 **/ 4538 static ssize_t 4539 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4540 const char *buf, size_t count) 4541 { 4542 struct Scsi_Host *shost = class_to_shost(dev); 4543 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4544 struct lpfc_hba *phba = vport->phba; 4545 int val = LPFC_USER_LINK_SPEED_AUTO; 4546 int nolip = 0; 4547 const char *val_buf = buf; 4548 int err; 4549 uint32_t prev_val, if_type; 4550 4551 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4552 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4553 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4554 return -EPERM; 4555 4556 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4557 nolip = 1; 4558 val_buf = &buf[strlen("nolip ")]; 4559 } 4560 4561 if (!isdigit(val_buf[0])) 4562 return -EINVAL; 4563 if (sscanf(val_buf, "%i", &val) != 1) 4564 return -EINVAL; 4565 4566 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4567 "3055 lpfc_link_speed changed from %d to %d %s\n", 4568 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4569 4570 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4571 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4572 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4573 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4574 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4575 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4576 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4577 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4579 "2879 lpfc_link_speed attribute cannot be set " 4580 "to %d. Speed is not supported by this port.\n", 4581 val); 4582 return -EINVAL; 4583 } 4584 if (val >= LPFC_USER_LINK_SPEED_16G && 4585 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4587 "3112 lpfc_link_speed attribute cannot be set " 4588 "to %d. Speed is not supported in loop mode.\n", 4589 val); 4590 return -EINVAL; 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 prev_val = phba->cfg_link_speed; 4603 phba->cfg_link_speed = val; 4604 if (nolip) 4605 return strlen(buf); 4606 4607 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4608 if (err) { 4609 phba->cfg_link_speed = prev_val; 4610 return -EINVAL; 4611 } 4612 return strlen(buf); 4613 default: 4614 break; 4615 } 4616 4617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4618 "0469 lpfc_link_speed attribute cannot be set to %d, " 4619 "allowed values are [%s]\n", 4620 val, LPFC_LINK_SPEED_STRING); 4621 return -EINVAL; 4622 4623 } 4624 4625 static int lpfc_link_speed = 0; 4626 module_param(lpfc_link_speed, int, S_IRUGO); 4627 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4628 lpfc_param_show(link_speed) 4629 4630 /** 4631 * lpfc_link_speed_init - Set the adapters link speed 4632 * @phba: lpfc_hba pointer. 4633 * @val: link speed value. 4634 * 4635 * Description: 4636 * If val is in a valid range then set the adapter's link speed field. 4637 * 4638 * Notes: 4639 * If the value is not in range log a kernel error message, clear the link 4640 * speed and return an error. 4641 * 4642 * Returns: 4643 * zero if val saved. 4644 * -EINVAL val out of range 4645 **/ 4646 static int 4647 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4648 { 4649 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4650 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4651 "3111 lpfc_link_speed of %d cannot " 4652 "support loop mode, setting topology to default.\n", 4653 val); 4654 phba->cfg_topology = 0; 4655 } 4656 4657 switch (val) { 4658 case LPFC_USER_LINK_SPEED_AUTO: 4659 case LPFC_USER_LINK_SPEED_1G: 4660 case LPFC_USER_LINK_SPEED_2G: 4661 case LPFC_USER_LINK_SPEED_4G: 4662 case LPFC_USER_LINK_SPEED_8G: 4663 case LPFC_USER_LINK_SPEED_16G: 4664 case LPFC_USER_LINK_SPEED_32G: 4665 case LPFC_USER_LINK_SPEED_64G: 4666 phba->cfg_link_speed = val; 4667 return 0; 4668 default: 4669 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4670 "0405 lpfc_link_speed attribute cannot " 4671 "be set to %d, allowed values are " 4672 "["LPFC_LINK_SPEED_STRING"]\n", val); 4673 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4674 return -EINVAL; 4675 } 4676 } 4677 4678 static DEVICE_ATTR_RW(lpfc_link_speed); 4679 4680 /* 4681 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4682 # 0 = aer disabled or not supported 4683 # 1 = aer supported and enabled (default) 4684 # Value range is [0,1]. Default value is 1. 4685 */ 4686 LPFC_ATTR(aer_support, 1, 0, 1, 4687 "Enable PCIe device AER support"); 4688 lpfc_param_show(aer_support) 4689 4690 /** 4691 * lpfc_aer_support_store - Set the adapter for aer support 4692 * 4693 * @dev: class device that is converted into a Scsi_host. 4694 * @attr: device attribute, not used. 4695 * @buf: containing enable or disable aer flag. 4696 * @count: unused variable. 4697 * 4698 * Description: 4699 * If the val is 1 and currently the device's AER capability was not 4700 * enabled, invoke the kernel's enable AER helper routine, trying to 4701 * enable the device's AER capability. If the helper routine enabling 4702 * AER returns success, update the device's cfg_aer_support flag to 4703 * indicate AER is supported by the device; otherwise, if the device 4704 * AER capability is already enabled to support AER, then do nothing. 4705 * 4706 * If the val is 0 and currently the device's AER support was enabled, 4707 * invoke the kernel's disable AER helper routine. After that, update 4708 * the device's cfg_aer_support flag to indicate AER is not supported 4709 * by the device; otherwise, if the device AER capability is already 4710 * disabled from supporting AER, then do nothing. 4711 * 4712 * Returns: 4713 * length of the buf on success if val is in range the intended mode 4714 * is supported. 4715 * -EINVAL if val out of range or intended mode is not supported. 4716 **/ 4717 static ssize_t 4718 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4719 const char *buf, size_t count) 4720 { 4721 struct Scsi_Host *shost = class_to_shost(dev); 4722 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4723 struct lpfc_hba *phba = vport->phba; 4724 int val = 0, rc = -EINVAL; 4725 4726 if (!isdigit(buf[0])) 4727 return -EINVAL; 4728 if (sscanf(buf, "%i", &val) != 1) 4729 return -EINVAL; 4730 4731 switch (val) { 4732 case 0: 4733 if (phba->hba_flag & HBA_AER_ENABLED) { 4734 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4735 if (!rc) { 4736 spin_lock_irq(&phba->hbalock); 4737 phba->hba_flag &= ~HBA_AER_ENABLED; 4738 spin_unlock_irq(&phba->hbalock); 4739 phba->cfg_aer_support = 0; 4740 rc = strlen(buf); 4741 } else 4742 rc = -EPERM; 4743 } else { 4744 phba->cfg_aer_support = 0; 4745 rc = strlen(buf); 4746 } 4747 break; 4748 case 1: 4749 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4750 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4751 if (!rc) { 4752 spin_lock_irq(&phba->hbalock); 4753 phba->hba_flag |= HBA_AER_ENABLED; 4754 spin_unlock_irq(&phba->hbalock); 4755 phba->cfg_aer_support = 1; 4756 rc = strlen(buf); 4757 } else 4758 rc = -EPERM; 4759 } else { 4760 phba->cfg_aer_support = 1; 4761 rc = strlen(buf); 4762 } 4763 break; 4764 default: 4765 rc = -EINVAL; 4766 break; 4767 } 4768 return rc; 4769 } 4770 4771 static DEVICE_ATTR_RW(lpfc_aer_support); 4772 4773 /** 4774 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4775 * @dev: class device that is converted into a Scsi_host. 4776 * @attr: device attribute, not used. 4777 * @buf: containing flag 1 for aer cleanup state. 4778 * @count: unused variable. 4779 * 4780 * Description: 4781 * If the @buf contains 1 and the device currently has the AER support 4782 * enabled, then invokes the kernel AER helper routine 4783 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4784 * error status register. 4785 * 4786 * Notes: 4787 * 4788 * Returns: 4789 * -EINVAL if the buf does not contain the 1 or the device is not currently 4790 * enabled with the AER support. 4791 **/ 4792 static ssize_t 4793 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4794 const char *buf, size_t count) 4795 { 4796 struct Scsi_Host *shost = class_to_shost(dev); 4797 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4798 struct lpfc_hba *phba = vport->phba; 4799 int val, rc = -1; 4800 4801 if (!isdigit(buf[0])) 4802 return -EINVAL; 4803 if (sscanf(buf, "%i", &val) != 1) 4804 return -EINVAL; 4805 if (val != 1) 4806 return -EINVAL; 4807 4808 if (phba->hba_flag & HBA_AER_ENABLED) 4809 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4810 4811 if (rc == 0) 4812 return strlen(buf); 4813 else 4814 return -EPERM; 4815 } 4816 4817 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4818 lpfc_aer_cleanup_state); 4819 4820 /** 4821 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4822 * 4823 * @dev: class device that is converted into a Scsi_host. 4824 * @attr: device attribute, not used. 4825 * @buf: containing the string the number of vfs to be enabled. 4826 * @count: unused variable. 4827 * 4828 * Description: 4829 * When this api is called either through user sysfs, the driver shall 4830 * try to enable or disable SR-IOV virtual functions according to the 4831 * following: 4832 * 4833 * If zero virtual function has been enabled to the physical function, 4834 * the driver shall invoke the pci enable virtual function api trying 4835 * to enable the virtual functions. If the nr_vfn provided is greater 4836 * than the maximum supported, the maximum virtual function number will 4837 * be used for invoking the api; otherwise, the nr_vfn provided shall 4838 * be used for invoking the api. If the api call returned success, the 4839 * actual number of virtual functions enabled will be set to the driver 4840 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4841 * cfg_sriov_nr_virtfn remains zero. 4842 * 4843 * If none-zero virtual functions have already been enabled to the 4844 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4845 * -EINVAL will be returned and the driver does nothing; 4846 * 4847 * If the nr_vfn provided is zero and none-zero virtual functions have 4848 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4849 * disabling virtual function api shall be invoded to disable all the 4850 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4851 * zero. Otherwise, if zero virtual function has been enabled, do 4852 * nothing. 4853 * 4854 * Returns: 4855 * length of the buf on success if val is in range the intended mode 4856 * is supported. 4857 * -EINVAL if val out of range or intended mode is not supported. 4858 **/ 4859 static ssize_t 4860 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4861 const char *buf, size_t count) 4862 { 4863 struct Scsi_Host *shost = class_to_shost(dev); 4864 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4865 struct lpfc_hba *phba = vport->phba; 4866 struct pci_dev *pdev = phba->pcidev; 4867 int val = 0, rc = -EINVAL; 4868 4869 /* Sanity check on user data */ 4870 if (!isdigit(buf[0])) 4871 return -EINVAL; 4872 if (sscanf(buf, "%i", &val) != 1) 4873 return -EINVAL; 4874 if (val < 0) 4875 return -EINVAL; 4876 4877 /* Request disabling virtual functions */ 4878 if (val == 0) { 4879 if (phba->cfg_sriov_nr_virtfn > 0) { 4880 pci_disable_sriov(pdev); 4881 phba->cfg_sriov_nr_virtfn = 0; 4882 } 4883 return strlen(buf); 4884 } 4885 4886 /* Request enabling virtual functions */ 4887 if (phba->cfg_sriov_nr_virtfn > 0) { 4888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4889 "3018 There are %d virtual functions " 4890 "enabled on physical function.\n", 4891 phba->cfg_sriov_nr_virtfn); 4892 return -EEXIST; 4893 } 4894 4895 if (val <= LPFC_MAX_VFN_PER_PFN) 4896 phba->cfg_sriov_nr_virtfn = val; 4897 else { 4898 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4899 "3019 Enabling %d virtual functions is not " 4900 "allowed.\n", val); 4901 return -EINVAL; 4902 } 4903 4904 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4905 if (rc) { 4906 phba->cfg_sriov_nr_virtfn = 0; 4907 rc = -EPERM; 4908 } else 4909 rc = strlen(buf); 4910 4911 return rc; 4912 } 4913 4914 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4915 "Enable PCIe device SR-IOV virtual fn"); 4916 4917 lpfc_param_show(sriov_nr_virtfn) 4918 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4919 4920 /** 4921 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4922 * 4923 * @dev: class device that is converted into a Scsi_host. 4924 * @attr: device attribute, not used. 4925 * @buf: containing the string the number of vfs to be enabled. 4926 * @count: unused variable. 4927 * 4928 * Description: 4929 * 4930 * Returns: 4931 * length of the buf on success if val is in range the intended mode 4932 * is supported. 4933 * -EINVAL if val out of range or intended mode is not supported. 4934 **/ 4935 static ssize_t 4936 lpfc_request_firmware_upgrade_store(struct device *dev, 4937 struct device_attribute *attr, 4938 const char *buf, size_t count) 4939 { 4940 struct Scsi_Host *shost = class_to_shost(dev); 4941 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4942 struct lpfc_hba *phba = vport->phba; 4943 int val = 0, rc = -EINVAL; 4944 4945 /* Sanity check on user data */ 4946 if (!isdigit(buf[0])) 4947 return -EINVAL; 4948 if (sscanf(buf, "%i", &val) != 1) 4949 return -EINVAL; 4950 if (val != 1) 4951 return -EINVAL; 4952 4953 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4954 if (rc) 4955 rc = -EPERM; 4956 else 4957 rc = strlen(buf); 4958 return rc; 4959 } 4960 4961 static int lpfc_req_fw_upgrade; 4962 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4963 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4964 lpfc_param_show(request_firmware_upgrade) 4965 4966 /** 4967 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4968 * @phba: lpfc_hba pointer. 4969 * @val: 0 or 1. 4970 * 4971 * Description: 4972 * Set the initial Linux generic firmware upgrade enable or disable flag. 4973 * 4974 * Returns: 4975 * zero if val saved. 4976 * -EINVAL val out of range 4977 **/ 4978 static int 4979 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4980 { 4981 if (val >= 0 && val <= 1) { 4982 phba->cfg_request_firmware_upgrade = val; 4983 return 0; 4984 } 4985 return -EINVAL; 4986 } 4987 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4988 lpfc_request_firmware_upgrade_show, 4989 lpfc_request_firmware_upgrade_store); 4990 4991 /** 4992 * lpfc_force_rscn_store 4993 * 4994 * @dev: class device that is converted into a Scsi_host. 4995 * @attr: device attribute, not used. 4996 * @buf: unused string 4997 * @count: unused variable. 4998 * 4999 * Description: 5000 * Force the switch to send a RSCN to all other NPorts in our zone 5001 * If we are direct connect pt2pt, build the RSCN command ourself 5002 * and send to the other NPort. Not supported for private loop. 5003 * 5004 * Returns: 5005 * 0 - on success 5006 * -EIO - if command is not sent 5007 **/ 5008 static ssize_t 5009 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 5010 const char *buf, size_t count) 5011 { 5012 struct Scsi_Host *shost = class_to_shost(dev); 5013 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5014 int i; 5015 5016 i = lpfc_issue_els_rscn(vport, 0); 5017 if (i) 5018 return -EIO; 5019 return strlen(buf); 5020 } 5021 5022 /* 5023 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 5024 * connected to the HBA. 5025 * 5026 * Value range is any ascii value 5027 */ 5028 static int lpfc_force_rscn; 5029 module_param(lpfc_force_rscn, int, 0644); 5030 MODULE_PARM_DESC(lpfc_force_rscn, 5031 "Force an RSCN to be sent to all remote NPorts"); 5032 lpfc_param_show(force_rscn) 5033 5034 /** 5035 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 5036 * @phba: lpfc_hba pointer. 5037 * @val: unused value. 5038 * 5039 * Returns: 5040 * zero if val saved. 5041 **/ 5042 static int 5043 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 5044 { 5045 return 0; 5046 } 5047 static DEVICE_ATTR_RW(lpfc_force_rscn); 5048 5049 /** 5050 * lpfc_fcp_imax_store 5051 * 5052 * @dev: class device that is converted into a Scsi_host. 5053 * @attr: device attribute, not used. 5054 * @buf: string with the number of fast-path FCP interrupts per second. 5055 * @count: unused variable. 5056 * 5057 * Description: 5058 * If val is in a valid range [636,651042], then set the adapter's 5059 * maximum number of fast-path FCP interrupts per second. 5060 * 5061 * Returns: 5062 * length of the buf on success if val is in range the intended mode 5063 * is supported. 5064 * -EINVAL if val out of range or intended mode is not supported. 5065 **/ 5066 static ssize_t 5067 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5068 const char *buf, size_t count) 5069 { 5070 struct Scsi_Host *shost = class_to_shost(dev); 5071 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5072 struct lpfc_hba *phba = vport->phba; 5073 struct lpfc_eq_intr_info *eqi; 5074 uint32_t usdelay; 5075 int val = 0, i; 5076 5077 /* fcp_imax is only valid for SLI4 */ 5078 if (phba->sli_rev != LPFC_SLI_REV4) 5079 return -EINVAL; 5080 5081 /* Sanity check on user data */ 5082 if (!isdigit(buf[0])) 5083 return -EINVAL; 5084 if (sscanf(buf, "%i", &val) != 1) 5085 return -EINVAL; 5086 5087 /* 5088 * Value range for the HBA is [5000,5000000] 5089 * The value for each EQ depends on how many EQs are configured. 5090 * Allow value == 0 5091 */ 5092 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5093 return -EINVAL; 5094 5095 phba->cfg_auto_imax = (val) ? 0 : 1; 5096 if (phba->cfg_fcp_imax && !val) { 5097 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5098 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5099 5100 for_each_present_cpu(i) { 5101 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5102 eqi->icnt = 0; 5103 } 5104 } 5105 5106 phba->cfg_fcp_imax = (uint32_t)val; 5107 5108 if (phba->cfg_fcp_imax) 5109 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5110 else 5111 usdelay = 0; 5112 5113 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5114 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5115 usdelay); 5116 5117 return strlen(buf); 5118 } 5119 5120 /* 5121 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5122 # for the HBA. 5123 # 5124 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5125 */ 5126 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5127 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5128 MODULE_PARM_DESC(lpfc_fcp_imax, 5129 "Set the maximum number of FCP interrupts per second per HBA"); 5130 lpfc_param_show(fcp_imax) 5131 5132 /** 5133 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5134 * @phba: lpfc_hba pointer. 5135 * @val: link speed value. 5136 * 5137 * Description: 5138 * If val is in a valid range [636,651042], then initialize the adapter's 5139 * maximum number of fast-path FCP interrupts per second. 5140 * 5141 * Returns: 5142 * zero if val saved. 5143 * -EINVAL val out of range 5144 **/ 5145 static int 5146 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5147 { 5148 if (phba->sli_rev != LPFC_SLI_REV4) { 5149 phba->cfg_fcp_imax = 0; 5150 return 0; 5151 } 5152 5153 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5154 (val == 0)) { 5155 phba->cfg_fcp_imax = val; 5156 return 0; 5157 } 5158 5159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5160 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5161 val); 5162 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5163 5164 return 0; 5165 } 5166 5167 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5168 5169 /** 5170 * lpfc_cq_max_proc_limit_store 5171 * 5172 * @dev: class device that is converted into a Scsi_host. 5173 * @attr: device attribute, not used. 5174 * @buf: string with the cq max processing limit of cqes 5175 * @count: unused variable. 5176 * 5177 * Description: 5178 * If val is in a valid range, then set value on each cq 5179 * 5180 * Returns: 5181 * The length of the buf: if successful 5182 * -ERANGE: if val is not in the valid range 5183 * -EINVAL: if bad value format or intended mode is not supported. 5184 **/ 5185 static ssize_t 5186 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5187 const char *buf, size_t count) 5188 { 5189 struct Scsi_Host *shost = class_to_shost(dev); 5190 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5191 struct lpfc_hba *phba = vport->phba; 5192 struct lpfc_queue *eq, *cq; 5193 unsigned long val; 5194 int i; 5195 5196 /* cq_max_proc_limit is only valid for SLI4 */ 5197 if (phba->sli_rev != LPFC_SLI_REV4) 5198 return -EINVAL; 5199 5200 /* Sanity check on user data */ 5201 if (!isdigit(buf[0])) 5202 return -EINVAL; 5203 if (kstrtoul(buf, 0, &val)) 5204 return -EINVAL; 5205 5206 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5207 return -ERANGE; 5208 5209 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5210 5211 /* set the values on the cq's */ 5212 for (i = 0; i < phba->cfg_irq_chann; i++) { 5213 /* Get the EQ corresponding to the IRQ vector */ 5214 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5215 if (!eq) 5216 continue; 5217 5218 list_for_each_entry(cq, &eq->child_list, list) 5219 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5220 cq->entry_count); 5221 } 5222 5223 return strlen(buf); 5224 } 5225 5226 /* 5227 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5228 * itteration of CQ processing. 5229 */ 5230 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5231 module_param(lpfc_cq_max_proc_limit, int, 0644); 5232 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5233 "Set the maximum number CQEs processed in an iteration of " 5234 "CQ processing"); 5235 lpfc_param_show(cq_max_proc_limit) 5236 5237 /* 5238 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5239 * single handler call which should request a polled completion rather 5240 * than re-enabling interrupts. 5241 */ 5242 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5243 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5244 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5245 "CQE Processing Threshold to enable Polling"); 5246 5247 /** 5248 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5249 * @phba: lpfc_hba pointer. 5250 * @val: entry limit 5251 * 5252 * Description: 5253 * If val is in a valid range, then initialize the adapter's maximum 5254 * value. 5255 * 5256 * Returns: 5257 * Always returns 0 for success, even if value not always set to 5258 * requested value. If value out of range or not supported, will fall 5259 * back to default. 5260 **/ 5261 static int 5262 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5263 { 5264 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5265 5266 if (phba->sli_rev != LPFC_SLI_REV4) 5267 return 0; 5268 5269 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5270 phba->cfg_cq_max_proc_limit = val; 5271 return 0; 5272 } 5273 5274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5275 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: " 5276 "%d out of range, using default\n", 5277 phba->cfg_cq_max_proc_limit); 5278 5279 return 0; 5280 } 5281 5282 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5283 5284 /** 5285 * lpfc_state_show - Display current driver CPU affinity 5286 * @dev: class converted to a Scsi_host structure. 5287 * @attr: device attribute, not used. 5288 * @buf: on return contains text describing the state of the link. 5289 * 5290 * Returns: size of formatted string. 5291 **/ 5292 static ssize_t 5293 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5294 char *buf) 5295 { 5296 struct Scsi_Host *shost = class_to_shost(dev); 5297 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5298 struct lpfc_hba *phba = vport->phba; 5299 struct lpfc_vector_map_info *cpup; 5300 int len = 0; 5301 5302 if ((phba->sli_rev != LPFC_SLI_REV4) || 5303 (phba->intr_type != MSIX)) 5304 return len; 5305 5306 switch (phba->cfg_fcp_cpu_map) { 5307 case 0: 5308 len += scnprintf(buf + len, PAGE_SIZE-len, 5309 "fcp_cpu_map: No mapping (%d)\n", 5310 phba->cfg_fcp_cpu_map); 5311 return len; 5312 case 1: 5313 len += scnprintf(buf + len, PAGE_SIZE-len, 5314 "fcp_cpu_map: HBA centric mapping (%d): " 5315 "%d of %d CPUs online from %d possible CPUs\n", 5316 phba->cfg_fcp_cpu_map, num_online_cpus(), 5317 num_present_cpus(), 5318 phba->sli4_hba.num_possible_cpu); 5319 break; 5320 } 5321 5322 while (phba->sli4_hba.curr_disp_cpu < 5323 phba->sli4_hba.num_possible_cpu) { 5324 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5325 5326 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5327 len += scnprintf(buf + len, PAGE_SIZE - len, 5328 "CPU %02d not present\n", 5329 phba->sli4_hba.curr_disp_cpu); 5330 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5331 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5332 len += scnprintf( 5333 buf + len, PAGE_SIZE - len, 5334 "CPU %02d hdwq None " 5335 "physid %d coreid %d ht %d ua %d\n", 5336 phba->sli4_hba.curr_disp_cpu, 5337 cpup->phys_id, cpup->core_id, 5338 (cpup->flag & LPFC_CPU_MAP_HYPER), 5339 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5340 else 5341 len += scnprintf( 5342 buf + len, PAGE_SIZE - len, 5343 "CPU %02d EQ None hdwq %04d " 5344 "physid %d coreid %d ht %d ua %d\n", 5345 phba->sli4_hba.curr_disp_cpu, 5346 cpup->hdwq, cpup->phys_id, 5347 cpup->core_id, 5348 (cpup->flag & LPFC_CPU_MAP_HYPER), 5349 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5350 } else { 5351 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5352 len += scnprintf( 5353 buf + len, PAGE_SIZE - len, 5354 "CPU %02d hdwq None " 5355 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5356 phba->sli4_hba.curr_disp_cpu, 5357 cpup->phys_id, 5358 cpup->core_id, 5359 (cpup->flag & LPFC_CPU_MAP_HYPER), 5360 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5361 lpfc_get_irq(cpup->eq)); 5362 else 5363 len += scnprintf( 5364 buf + len, PAGE_SIZE - len, 5365 "CPU %02d EQ %04d hdwq %04d " 5366 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5367 phba->sli4_hba.curr_disp_cpu, 5368 cpup->eq, cpup->hdwq, cpup->phys_id, 5369 cpup->core_id, 5370 (cpup->flag & LPFC_CPU_MAP_HYPER), 5371 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5372 lpfc_get_irq(cpup->eq)); 5373 } 5374 5375 phba->sli4_hba.curr_disp_cpu++; 5376 5377 /* display max number of CPUs keeping some margin */ 5378 if (phba->sli4_hba.curr_disp_cpu < 5379 phba->sli4_hba.num_possible_cpu && 5380 (len >= (PAGE_SIZE - 64))) { 5381 len += scnprintf(buf + len, 5382 PAGE_SIZE - len, "more...\n"); 5383 break; 5384 } 5385 } 5386 5387 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5388 phba->sli4_hba.curr_disp_cpu = 0; 5389 5390 return len; 5391 } 5392 5393 /** 5394 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5395 * @dev: class device that is converted into a Scsi_host. 5396 * @attr: device attribute, not used. 5397 * @buf: one or more lpfc_polling_flags values. 5398 * @count: not used. 5399 * 5400 * Returns: 5401 * -EINVAL - Not implemented yet. 5402 **/ 5403 static ssize_t 5404 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5405 const char *buf, size_t count) 5406 { 5407 int status = -EINVAL; 5408 return status; 5409 } 5410 5411 /* 5412 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5413 # for the HBA. 5414 # 5415 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5416 # 0 - Do not affinitze IRQ vectors 5417 # 1 - Affintize HBA vectors with respect to each HBA 5418 # (start with CPU0 for each HBA) 5419 # This also defines how Hardware Queues are mapped to specific CPUs. 5420 */ 5421 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5422 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5423 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5424 "Defines how to map CPUs to IRQ vectors per HBA"); 5425 5426 /** 5427 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5428 * @phba: lpfc_hba pointer. 5429 * @val: link speed value. 5430 * 5431 * Description: 5432 * If val is in a valid range [0-2], then affinitze the adapter's 5433 * MSIX vectors. 5434 * 5435 * Returns: 5436 * zero if val saved. 5437 * -EINVAL val out of range 5438 **/ 5439 static int 5440 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5441 { 5442 if (phba->sli_rev != LPFC_SLI_REV4) { 5443 phba->cfg_fcp_cpu_map = 0; 5444 return 0; 5445 } 5446 5447 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5448 phba->cfg_fcp_cpu_map = val; 5449 return 0; 5450 } 5451 5452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5453 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5454 "default\n", val); 5455 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5456 5457 return 0; 5458 } 5459 5460 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5461 5462 /* 5463 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5464 # Value range is [2,3]. Default value is 3. 5465 */ 5466 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5467 "Select Fibre Channel class of service for FCP sequences"); 5468 5469 /* 5470 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5471 # is [0,1]. Default value is 0. 5472 */ 5473 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5474 "Use ADISC on rediscovery to authenticate FCP devices"); 5475 5476 /* 5477 # lpfc_first_burst_size: First burst size to use on the NPorts 5478 # that support first burst. 5479 # Value range is [0,65536]. Default value is 0. 5480 */ 5481 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5482 "First burst size for Targets that support first burst"); 5483 5484 /* 5485 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5486 * When the driver is configured as an NVME target, this value is 5487 * communicated to the NVME initiator in the PRLI response. It is 5488 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5489 * parameters are set and the target is sending the PRLI RSP. 5490 * Parameter supported on physical port only - no NPIV support. 5491 * Value range is [0,65536]. Default value is 0. 5492 */ 5493 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5494 "NVME Target mode first burst size in 512B increments."); 5495 5496 /* 5497 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5498 * For the Initiator (I), enabling this parameter means that an NVMET 5499 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5500 * processed by the initiator for subsequent NVME FCP IO. 5501 * Currently, this feature is not supported on the NVME target 5502 * Value range is [0,1]. Default value is 0 (disabled). 5503 */ 5504 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5505 "Enable First Burst feature for NVME Initiator."); 5506 5507 /* 5508 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5509 # depth. Default value is 0. When the value of this parameter is zero the 5510 # SCSI command completion time is not used for controlling I/O queue depth. When 5511 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5512 # to limit the I/O completion time to the parameter value. 5513 # The value is set in milliseconds. 5514 */ 5515 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5516 "Use command completion time to control queue depth"); 5517 5518 lpfc_vport_param_show(max_scsicmpl_time); 5519 static int 5520 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5521 { 5522 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5523 struct lpfc_nodelist *ndlp, *next_ndlp; 5524 5525 if (val == vport->cfg_max_scsicmpl_time) 5526 return 0; 5527 if ((val < 0) || (val > 60000)) 5528 return -EINVAL; 5529 vport->cfg_max_scsicmpl_time = val; 5530 5531 spin_lock_irq(shost->host_lock); 5532 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5533 if (!NLP_CHK_NODE_ACT(ndlp)) 5534 continue; 5535 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5536 continue; 5537 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5538 } 5539 spin_unlock_irq(shost->host_lock); 5540 return 0; 5541 } 5542 lpfc_vport_param_store(max_scsicmpl_time); 5543 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5544 5545 /* 5546 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5547 # range is [0,1]. Default value is 0. 5548 */ 5549 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5550 5551 /* 5552 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5553 # range is [0,1]. Default value is 1. 5554 */ 5555 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5556 5557 /* 5558 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5559 * range is [0,1]. Default value is 0. 5560 * For [0], FCP commands are issued to Work Queues based on upper layer 5561 * hardware queue index. 5562 * For [1], FCP commands are issued to a Work Queue associated with the 5563 * current CPU. 5564 * 5565 * LPFC_FCP_SCHED_BY_HDWQ == 0 5566 * LPFC_FCP_SCHED_BY_CPU == 1 5567 * 5568 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5569 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5570 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5571 * through WQs will be used. 5572 */ 5573 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5574 LPFC_FCP_SCHED_BY_HDWQ, 5575 LPFC_FCP_SCHED_BY_CPU, 5576 "Determine scheduling algorithm for " 5577 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5578 5579 /* 5580 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5581 * range is [0,1]. Default value is 0. 5582 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5583 * For [1], GID_PT is used for NameServer queries after RSCN 5584 * 5585 */ 5586 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5587 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5588 "Determine algorithm NameServer queries after RSCN " 5589 "[0] - GID_FT, [1] - GID_PT"); 5590 5591 /* 5592 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5593 # range is [0,1]. Default value is 0. 5594 # For [0], bus reset issues target reset to ALL devices 5595 # For [1], bus reset issues target reset to non-FCP2 devices 5596 */ 5597 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5598 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5599 5600 5601 /* 5602 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5603 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5604 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5605 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5606 # cr_delay is set to 0. 5607 */ 5608 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5609 "interrupt response is generated"); 5610 5611 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5612 "interrupt response is generated"); 5613 5614 /* 5615 # lpfc_multi_ring_support: Determines how many rings to spread available 5616 # cmd/rsp IOCB entries across. 5617 # Value range is [1,2]. Default value is 1. 5618 */ 5619 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5620 "SLI rings to spread IOCB entries across"); 5621 5622 /* 5623 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5624 # identifies what rctl value to configure the additional ring for. 5625 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5626 */ 5627 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5628 255, "Identifies RCTL for additional ring configuration"); 5629 5630 /* 5631 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5632 # identifies what type value to configure the additional ring for. 5633 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5634 */ 5635 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5636 255, "Identifies TYPE for additional ring configuration"); 5637 5638 /* 5639 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5640 # 0 = SmartSAN functionality disabled (default) 5641 # 1 = SmartSAN functionality enabled 5642 # This parameter will override the value of lpfc_fdmi_on module parameter. 5643 # Value range is [0,1]. Default value is 0. 5644 */ 5645 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5646 5647 /* 5648 # lpfc_fdmi_on: Controls FDMI support. 5649 # 0 No FDMI support 5650 # 1 Traditional FDMI support (default) 5651 # Traditional FDMI support means the driver will assume FDMI-2 support; 5652 # however, if that fails, it will fallback to FDMI-1. 5653 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5654 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5655 # lpfc_fdmi_on. 5656 # Value range [0,1]. Default value is 1. 5657 */ 5658 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5659 5660 /* 5661 # Specifies the maximum number of ELS cmds we can have outstanding (for 5662 # discovery). Value range is [1,64]. Default value = 32. 5663 */ 5664 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5665 "during discovery"); 5666 5667 /* 5668 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5669 # will be scanned by the SCSI midlayer when sequential scanning is 5670 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5671 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5672 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5673 # above. The lpfc driver limits the default value to 255 for two reasons. 5674 # As it bounds the sequential scan loop, scanning for thousands of luns 5675 # on a target can take minutes of wall clock time. Additionally, 5676 # there are FC targets, such as JBODs, that only recognize 8-bits of 5677 # LUN ID. When they receive a value greater than 8 bits, they chop off 5678 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5679 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5680 # valid responses at each of the LUN IDs, to believe there are multiple 5681 # devices present, when in fact, there is only 1. 5682 # A customer that is aware of their target behaviors, and the results as 5683 # indicated above, is welcome to increase the lpfc_max_luns value. 5684 # As mentioned, this value is not used by the lpfc driver, only the 5685 # SCSI midlayer. 5686 # Value range is [0,65535]. Default value is 255. 5687 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5688 */ 5689 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5690 5691 /* 5692 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5693 # Value range is [1,255], default value is 10. 5694 */ 5695 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5696 "Milliseconds driver will wait between polling FCP ring"); 5697 5698 /* 5699 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5700 # to complete in seconds. Value range is [5,180], default value is 60. 5701 */ 5702 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5703 "Maximum time to wait for task management commands to complete"); 5704 /* 5705 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5706 # support this feature 5707 # 0 = MSI disabled 5708 # 1 = MSI enabled 5709 # 2 = MSI-X enabled (default) 5710 # Value range is [0,2]. Default value is 2. 5711 */ 5712 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5713 "MSI-X (2), if possible"); 5714 5715 /* 5716 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5717 * 5718 * 0 = NVME OAS disabled 5719 * 1 = NVME OAS enabled 5720 * 5721 * Value range is [0,1]. Default value is 0. 5722 */ 5723 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5724 "Use OAS bit on NVME IOs"); 5725 5726 /* 5727 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5728 * 5729 * 0 = Put NVME Command in SGL 5730 * 1 = Embed NVME Command in WQE (unless G7) 5731 * 2 = Embed NVME Command in WQE (force) 5732 * 5733 * Value range is [0,2]. Default value is 1. 5734 */ 5735 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5736 "Embed NVME Command in WQE"); 5737 5738 /* 5739 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5740 * the driver will advertise it supports to the SCSI layer. 5741 * 5742 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5743 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5744 * 5745 * Value range is [0,256]. Default value is 8. 5746 */ 5747 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5748 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5749 "Set the number of SCSI Queues advertised"); 5750 5751 /* 5752 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5753 * will advertise it supports to the NVME and SCSI layers. This also 5754 * will map to the number of CQ/WQ pairs the driver will create. 5755 * 5756 * The NVME Layer will try to create this many, plus 1 administrative 5757 * hardware queue. The administrative queue will always map to WQ 0 5758 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5759 * 5760 * 0 = Configure the number of hdw queues to the number of active CPUs. 5761 * 1,256 = Manually specify how many hdw queues to use. 5762 * 5763 * Value range is [0,256]. Default value is 0. 5764 */ 5765 LPFC_ATTR_R(hdw_queue, 5766 LPFC_HBA_HDWQ_DEF, 5767 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5768 "Set the number of I/O Hardware Queues"); 5769 5770 static inline void 5771 lpfc_assign_default_irq_numa(struct lpfc_hba *phba) 5772 { 5773 #if IS_ENABLED(CONFIG_X86) 5774 /* If AMD architecture, then default is LPFC_IRQ_CHANN_NUMA */ 5775 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) 5776 phba->cfg_irq_numa = 1; 5777 else 5778 phba->cfg_irq_numa = 0; 5779 #else 5780 phba->cfg_irq_numa = 0; 5781 #endif 5782 } 5783 5784 /* 5785 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5786 * for Hardware Queues to utilize. This also will map to the number 5787 * of EQ / MSI-X vectors the driver will create. This should never be 5788 * more than the number of Hardware Queues 5789 * 5790 * 0 = Configure number of IRQ Channels to: 5791 * if AMD architecture, number of CPUs on HBA's NUMA node 5792 * otherwise, number of active CPUs. 5793 * [1,256] = Manually specify how many IRQ Channels to use. 5794 * 5795 * Value range is [0,256]. Default value is [0]. 5796 */ 5797 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5798 module_param(lpfc_irq_chann, uint, 0444); 5799 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5800 5801 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5802 * @phba: lpfc_hba pointer. 5803 * @val: contains the initial value 5804 * 5805 * Description: 5806 * Validates the initial value is within range and assigns it to the 5807 * adapter. If not in range, an error message is posted and the 5808 * default value is assigned. 5809 * 5810 * Returns: 5811 * zero if value is in range and is set 5812 * -EINVAL if value was out of range 5813 **/ 5814 static int 5815 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5816 { 5817 const struct cpumask *numa_mask; 5818 5819 if (phba->cfg_use_msi != 2) { 5820 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5821 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5822 phba->cfg_use_msi); 5823 phba->cfg_irq_numa = 0; 5824 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5825 return 0; 5826 } 5827 5828 /* Check if default setting was passed */ 5829 if (val == LPFC_IRQ_CHANN_DEF) 5830 lpfc_assign_default_irq_numa(phba); 5831 5832 if (phba->cfg_irq_numa) { 5833 numa_mask = &phba->sli4_hba.numa_mask; 5834 5835 if (cpumask_empty(numa_mask)) { 5836 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5837 "8533 Could not identify NUMA node, " 5838 "ignoring cfg_irq_numa\n"); 5839 phba->cfg_irq_numa = 0; 5840 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5841 } else { 5842 phba->cfg_irq_chann = cpumask_weight(numa_mask); 5843 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5844 "8543 lpfc_irq_chann set to %u " 5845 "(numa)\n", phba->cfg_irq_chann); 5846 } 5847 } else { 5848 if (val > LPFC_IRQ_CHANN_MAX) { 5849 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5850 "8545 lpfc_irq_chann attribute cannot " 5851 "be set to %u, allowed range is " 5852 "[%u,%u]\n", 5853 val, 5854 LPFC_IRQ_CHANN_MIN, 5855 LPFC_IRQ_CHANN_MAX); 5856 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5857 return -EINVAL; 5858 } 5859 phba->cfg_irq_chann = val; 5860 } 5861 5862 return 0; 5863 } 5864 5865 /** 5866 * lpfc_irq_chann_show - Display value of irq_chann 5867 * @dev: class converted to a Scsi_host structure. 5868 * @attr: device attribute, not used. 5869 * @buf: on return contains a string with the list sizes 5870 * 5871 * Returns: size of formatted string. 5872 **/ 5873 static ssize_t 5874 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5875 char *buf) 5876 { 5877 struct Scsi_Host *shost = class_to_shost(dev); 5878 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5879 struct lpfc_hba *phba = vport->phba; 5880 5881 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5882 } 5883 5884 static DEVICE_ATTR_RO(lpfc_irq_chann); 5885 5886 /* 5887 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5888 # 0 = HBA resets disabled 5889 # 1 = HBA resets enabled (default) 5890 # 2 = HBA reset via PCI bus reset enabled 5891 # Value range is [0,2]. Default value is 1. 5892 */ 5893 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5894 5895 /* 5896 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5897 # 0 = HBA Heartbeat disabled 5898 # 1 = HBA Heartbeat enabled (default) 5899 # Value range is [0,1]. Default value is 1. 5900 */ 5901 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5902 5903 /* 5904 # lpfc_EnableXLane: Enable Express Lane Feature 5905 # 0x0 Express Lane Feature disabled 5906 # 0x1 Express Lane Feature enabled 5907 # Value range is [0,1]. Default value is 0. 5908 */ 5909 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5910 5911 /* 5912 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5913 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5914 # Value range is [0x0,0x7f]. Default value is 0 5915 */ 5916 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5917 5918 /* 5919 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5920 # 0 = BlockGuard disabled (default) 5921 # 1 = BlockGuard enabled 5922 # Value range is [0,1]. Default value is 0. 5923 */ 5924 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5925 5926 /* 5927 # lpfc_prot_mask: i 5928 # - Bit mask of host protection capabilities used to register with the 5929 # SCSI mid-layer 5930 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5931 # - Allows you to ultimately specify which profiles to use 5932 # - Default will result in registering capabilities for all profiles. 5933 # - SHOST_DIF_TYPE1_PROTECTION 1 5934 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5935 # - SHOST_DIX_TYPE0_PROTECTION 8 5936 # HBA supports DIX Type 0: Host to HBA protection only 5937 # - SHOST_DIX_TYPE1_PROTECTION 16 5938 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5939 # 5940 */ 5941 LPFC_ATTR(prot_mask, 5942 (SHOST_DIF_TYPE1_PROTECTION | 5943 SHOST_DIX_TYPE0_PROTECTION | 5944 SHOST_DIX_TYPE1_PROTECTION), 5945 0, 5946 (SHOST_DIF_TYPE1_PROTECTION | 5947 SHOST_DIX_TYPE0_PROTECTION | 5948 SHOST_DIX_TYPE1_PROTECTION), 5949 "T10-DIF host protection capabilities mask"); 5950 5951 /* 5952 # lpfc_prot_guard: i 5953 # - Bit mask of protection guard types to register with the SCSI mid-layer 5954 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5955 # - Allows you to ultimately specify which profiles to use 5956 # - Default will result in registering capabilities for all guard types 5957 # 5958 */ 5959 LPFC_ATTR(prot_guard, 5960 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5961 "T10-DIF host protection guard type"); 5962 5963 /* 5964 * Delay initial NPort discovery when Clean Address bit is cleared in 5965 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5966 * This parameter can have value 0 or 1. 5967 * When this parameter is set to 0, no delay is added to the initial 5968 * discovery. 5969 * When this parameter is set to non-zero value, initial Nport discovery is 5970 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5971 * accept and FCID/Fabric name/Fabric portname is changed. 5972 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5973 * when Clean Address bit is cleared in FLOGI/FDISC 5974 * accept and FCID/Fabric name/Fabric portname is changed. 5975 * Default value is 0. 5976 */ 5977 LPFC_ATTR(delay_discovery, 0, 0, 1, 5978 "Delay NPort discovery when Clean Address bit is cleared."); 5979 5980 /* 5981 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5982 * This value can be set to values between 64 and 4096. The default value 5983 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5984 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5985 * Because of the additional overhead involved in setting up T10-DIF, 5986 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5987 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5988 */ 5989 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5990 module_param(lpfc_sg_seg_cnt, uint, 0444); 5991 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5992 5993 /** 5994 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5995 * configured for the adapter 5996 * @dev: class converted to a Scsi_host structure. 5997 * @attr: device attribute, not used. 5998 * @buf: on return contains a string with the list sizes 5999 * 6000 * Returns: size of formatted string. 6001 **/ 6002 static ssize_t 6003 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 6004 char *buf) 6005 { 6006 struct Scsi_Host *shost = class_to_shost(dev); 6007 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6008 struct lpfc_hba *phba = vport->phba; 6009 int len; 6010 6011 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 6012 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 6013 6014 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 6015 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 6016 phba->cfg_nvme_seg_cnt); 6017 return len; 6018 } 6019 6020 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 6021 6022 /** 6023 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 6024 * @phba: lpfc_hba pointer. 6025 * @val: contains the initial value 6026 * 6027 * Description: 6028 * Validates the initial value is within range and assigns it to the 6029 * adapter. If not in range, an error message is posted and the 6030 * default value is assigned. 6031 * 6032 * Returns: 6033 * zero if value is in range and is set 6034 * -EINVAL if value was out of range 6035 **/ 6036 static int 6037 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 6038 { 6039 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 6040 phba->cfg_sg_seg_cnt = val; 6041 return 0; 6042 } 6043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6044 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 6045 "be set to %d, allowed range is [%d, %d]\n", 6046 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 6047 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 6048 return -EINVAL; 6049 } 6050 6051 /* 6052 * lpfc_enable_mds_diags: Enable MDS Diagnostics 6053 * 0 = MDS Diagnostics disabled (default) 6054 * 1 = MDS Diagnostics enabled 6055 * Value range is [0,1]. Default value is 0. 6056 */ 6057 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 6058 6059 /* 6060 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 6061 * 0 = Disable firmware logging (default) 6062 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6063 * Value range [0..4]. Default value is 0 6064 */ 6065 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6066 lpfc_param_show(ras_fwlog_buffsize); 6067 6068 static ssize_t 6069 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6070 { 6071 int ret = 0; 6072 enum ras_state state; 6073 6074 if (!lpfc_rangecheck(val, 0, 4)) 6075 return -EINVAL; 6076 6077 if (phba->cfg_ras_fwlog_buffsize == val) 6078 return 0; 6079 6080 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6081 return -EINVAL; 6082 6083 spin_lock_irq(&phba->hbalock); 6084 state = phba->ras_fwlog.state; 6085 spin_unlock_irq(&phba->hbalock); 6086 6087 if (state == REG_INPROGRESS) { 6088 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6089 "registration is in progress\n"); 6090 return -EBUSY; 6091 } 6092 6093 /* For disable logging: stop the logs and free the DMA. 6094 * For ras_fwlog_buffsize size change we still need to free and 6095 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6096 */ 6097 phba->cfg_ras_fwlog_buffsize = val; 6098 if (state == ACTIVE) { 6099 lpfc_ras_stop_fwlog(phba); 6100 lpfc_sli4_ras_dma_free(phba); 6101 } 6102 6103 lpfc_sli4_ras_init(phba); 6104 if (phba->ras_fwlog.ras_enabled) 6105 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6106 LPFC_RAS_ENABLE_LOGGING); 6107 return ret; 6108 } 6109 6110 lpfc_param_store(ras_fwlog_buffsize); 6111 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6112 6113 /* 6114 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6115 * Valid only if firmware logging is enabled 6116 * 0(Least Verbosity) 4 (most verbosity) 6117 * Value range is [0..4]. Default value is 0 6118 */ 6119 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6120 6121 /* 6122 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6123 * Default function which has RAS support : 0 6124 * Value Range is [0..7]. 6125 * FW logging is a global action and enablement is via a specific 6126 * port. 6127 */ 6128 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6129 6130 /* 6131 * lpfc_enable_bbcr: Enable BB Credit Recovery 6132 * 0 = BB Credit Recovery disabled 6133 * 1 = BB Credit Recovery enabled (default) 6134 * Value range is [0,1]. Default value is 1. 6135 */ 6136 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6137 6138 /* 6139 * lpfc_enable_dpp: Enable DPP on G7 6140 * 0 = DPP on G7 disabled 6141 * 1 = DPP on G7 enabled (default) 6142 * Value range is [0,1]. Default value is 1. 6143 */ 6144 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6145 6146 struct device_attribute *lpfc_hba_attrs[] = { 6147 &dev_attr_nvme_info, 6148 &dev_attr_scsi_stat, 6149 &dev_attr_bg_info, 6150 &dev_attr_bg_guard_err, 6151 &dev_attr_bg_apptag_err, 6152 &dev_attr_bg_reftag_err, 6153 &dev_attr_info, 6154 &dev_attr_serialnum, 6155 &dev_attr_modeldesc, 6156 &dev_attr_modelname, 6157 &dev_attr_programtype, 6158 &dev_attr_portnum, 6159 &dev_attr_fwrev, 6160 &dev_attr_hdw, 6161 &dev_attr_option_rom_version, 6162 &dev_attr_link_state, 6163 &dev_attr_num_discovered_ports, 6164 &dev_attr_menlo_mgmt_mode, 6165 &dev_attr_lpfc_drvr_version, 6166 &dev_attr_lpfc_enable_fip, 6167 &dev_attr_lpfc_temp_sensor, 6168 &dev_attr_lpfc_log_verbose, 6169 &dev_attr_lpfc_lun_queue_depth, 6170 &dev_attr_lpfc_tgt_queue_depth, 6171 &dev_attr_lpfc_hba_queue_depth, 6172 &dev_attr_lpfc_peer_port_login, 6173 &dev_attr_lpfc_nodev_tmo, 6174 &dev_attr_lpfc_devloss_tmo, 6175 &dev_attr_lpfc_enable_fc4_type, 6176 &dev_attr_lpfc_fcp_class, 6177 &dev_attr_lpfc_use_adisc, 6178 &dev_attr_lpfc_first_burst_size, 6179 &dev_attr_lpfc_ack0, 6180 &dev_attr_lpfc_xri_rebalancing, 6181 &dev_attr_lpfc_topology, 6182 &dev_attr_lpfc_scan_down, 6183 &dev_attr_lpfc_link_speed, 6184 &dev_attr_lpfc_fcp_io_sched, 6185 &dev_attr_lpfc_ns_query, 6186 &dev_attr_lpfc_fcp2_no_tgt_reset, 6187 &dev_attr_lpfc_cr_delay, 6188 &dev_attr_lpfc_cr_count, 6189 &dev_attr_lpfc_multi_ring_support, 6190 &dev_attr_lpfc_multi_ring_rctl, 6191 &dev_attr_lpfc_multi_ring_type, 6192 &dev_attr_lpfc_fdmi_on, 6193 &dev_attr_lpfc_enable_SmartSAN, 6194 &dev_attr_lpfc_max_luns, 6195 &dev_attr_lpfc_enable_npiv, 6196 &dev_attr_lpfc_fcf_failover_policy, 6197 &dev_attr_lpfc_enable_rrq, 6198 &dev_attr_nport_evt_cnt, 6199 &dev_attr_board_mode, 6200 &dev_attr_max_vpi, 6201 &dev_attr_used_vpi, 6202 &dev_attr_max_rpi, 6203 &dev_attr_used_rpi, 6204 &dev_attr_max_xri, 6205 &dev_attr_used_xri, 6206 &dev_attr_npiv_info, 6207 &dev_attr_issue_reset, 6208 &dev_attr_lpfc_poll, 6209 &dev_attr_lpfc_poll_tmo, 6210 &dev_attr_lpfc_task_mgmt_tmo, 6211 &dev_attr_lpfc_use_msi, 6212 &dev_attr_lpfc_nvme_oas, 6213 &dev_attr_lpfc_nvme_embed_cmd, 6214 &dev_attr_lpfc_fcp_imax, 6215 &dev_attr_lpfc_force_rscn, 6216 &dev_attr_lpfc_cq_poll_threshold, 6217 &dev_attr_lpfc_cq_max_proc_limit, 6218 &dev_attr_lpfc_fcp_cpu_map, 6219 &dev_attr_lpfc_fcp_mq_threshold, 6220 &dev_attr_lpfc_hdw_queue, 6221 &dev_attr_lpfc_irq_chann, 6222 &dev_attr_lpfc_suppress_rsp, 6223 &dev_attr_lpfc_nvmet_mrq, 6224 &dev_attr_lpfc_nvmet_mrq_post, 6225 &dev_attr_lpfc_nvme_enable_fb, 6226 &dev_attr_lpfc_nvmet_fb_size, 6227 &dev_attr_lpfc_enable_bg, 6228 &dev_attr_lpfc_soft_wwnn, 6229 &dev_attr_lpfc_soft_wwpn, 6230 &dev_attr_lpfc_soft_wwn_enable, 6231 &dev_attr_lpfc_enable_hba_reset, 6232 &dev_attr_lpfc_enable_hba_heartbeat, 6233 &dev_attr_lpfc_EnableXLane, 6234 &dev_attr_lpfc_XLanePriority, 6235 &dev_attr_lpfc_xlane_lun, 6236 &dev_attr_lpfc_xlane_tgt, 6237 &dev_attr_lpfc_xlane_vpt, 6238 &dev_attr_lpfc_xlane_lun_state, 6239 &dev_attr_lpfc_xlane_lun_status, 6240 &dev_attr_lpfc_xlane_priority, 6241 &dev_attr_lpfc_sg_seg_cnt, 6242 &dev_attr_lpfc_max_scsicmpl_time, 6243 &dev_attr_lpfc_stat_data_ctrl, 6244 &dev_attr_lpfc_aer_support, 6245 &dev_attr_lpfc_aer_state_cleanup, 6246 &dev_attr_lpfc_sriov_nr_virtfn, 6247 &dev_attr_lpfc_req_fw_upgrade, 6248 &dev_attr_lpfc_suppress_link_up, 6249 &dev_attr_iocb_hw, 6250 &dev_attr_pls, 6251 &dev_attr_pt, 6252 &dev_attr_txq_hw, 6253 &dev_attr_txcmplq_hw, 6254 &dev_attr_lpfc_fips_level, 6255 &dev_attr_lpfc_fips_rev, 6256 &dev_attr_lpfc_dss, 6257 &dev_attr_lpfc_sriov_hw_max_virtfn, 6258 &dev_attr_protocol, 6259 &dev_attr_lpfc_xlane_supported, 6260 &dev_attr_lpfc_enable_mds_diags, 6261 &dev_attr_lpfc_ras_fwlog_buffsize, 6262 &dev_attr_lpfc_ras_fwlog_level, 6263 &dev_attr_lpfc_ras_fwlog_func, 6264 &dev_attr_lpfc_enable_bbcr, 6265 &dev_attr_lpfc_enable_dpp, 6266 NULL, 6267 }; 6268 6269 struct device_attribute *lpfc_vport_attrs[] = { 6270 &dev_attr_info, 6271 &dev_attr_link_state, 6272 &dev_attr_num_discovered_ports, 6273 &dev_attr_lpfc_drvr_version, 6274 &dev_attr_lpfc_log_verbose, 6275 &dev_attr_lpfc_lun_queue_depth, 6276 &dev_attr_lpfc_tgt_queue_depth, 6277 &dev_attr_lpfc_nodev_tmo, 6278 &dev_attr_lpfc_devloss_tmo, 6279 &dev_attr_lpfc_hba_queue_depth, 6280 &dev_attr_lpfc_peer_port_login, 6281 &dev_attr_lpfc_restrict_login, 6282 &dev_attr_lpfc_fcp_class, 6283 &dev_attr_lpfc_use_adisc, 6284 &dev_attr_lpfc_first_burst_size, 6285 &dev_attr_lpfc_max_luns, 6286 &dev_attr_nport_evt_cnt, 6287 &dev_attr_npiv_info, 6288 &dev_attr_lpfc_enable_da_id, 6289 &dev_attr_lpfc_max_scsicmpl_time, 6290 &dev_attr_lpfc_stat_data_ctrl, 6291 &dev_attr_lpfc_static_vport, 6292 &dev_attr_lpfc_fips_level, 6293 &dev_attr_lpfc_fips_rev, 6294 NULL, 6295 }; 6296 6297 /** 6298 * sysfs_ctlreg_write - Write method for writing to ctlreg 6299 * @filp: open sysfs file 6300 * @kobj: kernel kobject that contains the kernel class device. 6301 * @bin_attr: kernel attributes passed to us. 6302 * @buf: contains the data to be written to the adapter IOREG space. 6303 * @off: offset into buffer to beginning of data. 6304 * @count: bytes to transfer. 6305 * 6306 * Description: 6307 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6308 * Uses the adapter io control registers to send buf contents to the adapter. 6309 * 6310 * Returns: 6311 * -ERANGE off and count combo out of range 6312 * -EINVAL off, count or buff address invalid 6313 * -EPERM adapter is offline 6314 * value of count, buf contents written 6315 **/ 6316 static ssize_t 6317 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6318 struct bin_attribute *bin_attr, 6319 char *buf, loff_t off, size_t count) 6320 { 6321 size_t buf_off; 6322 struct device *dev = container_of(kobj, struct device, kobj); 6323 struct Scsi_Host *shost = class_to_shost(dev); 6324 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6325 struct lpfc_hba *phba = vport->phba; 6326 6327 if (phba->sli_rev >= LPFC_SLI_REV4) 6328 return -EPERM; 6329 6330 if ((off + count) > FF_REG_AREA_SIZE) 6331 return -ERANGE; 6332 6333 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6334 return 0; 6335 6336 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6337 return -EINVAL; 6338 6339 /* This is to protect HBA registers from accidental writes. */ 6340 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6341 return -EINVAL; 6342 6343 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6344 return -EPERM; 6345 6346 spin_lock_irq(&phba->hbalock); 6347 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6348 buf_off += sizeof(uint32_t)) 6349 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6350 phba->ctrl_regs_memmap_p + off + buf_off); 6351 6352 spin_unlock_irq(&phba->hbalock); 6353 6354 return count; 6355 } 6356 6357 /** 6358 * sysfs_ctlreg_read - Read method for reading from ctlreg 6359 * @filp: open sysfs file 6360 * @kobj: kernel kobject that contains the kernel class device. 6361 * @bin_attr: kernel attributes passed to us. 6362 * @buf: if successful contains the data from the adapter IOREG space. 6363 * @off: offset into buffer to beginning of data. 6364 * @count: bytes to transfer. 6365 * 6366 * Description: 6367 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6368 * Uses the adapter io control registers to read data into buf. 6369 * 6370 * Returns: 6371 * -ERANGE off and count combo out of range 6372 * -EINVAL off, count or buff address invalid 6373 * value of count, buf contents read 6374 **/ 6375 static ssize_t 6376 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6377 struct bin_attribute *bin_attr, 6378 char *buf, loff_t off, size_t count) 6379 { 6380 size_t buf_off; 6381 uint32_t * tmp_ptr; 6382 struct device *dev = container_of(kobj, struct device, kobj); 6383 struct Scsi_Host *shost = class_to_shost(dev); 6384 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6385 struct lpfc_hba *phba = vport->phba; 6386 6387 if (phba->sli_rev >= LPFC_SLI_REV4) 6388 return -EPERM; 6389 6390 if (off > FF_REG_AREA_SIZE) 6391 return -ERANGE; 6392 6393 if ((off + count) > FF_REG_AREA_SIZE) 6394 count = FF_REG_AREA_SIZE - off; 6395 6396 if (count == 0) return 0; 6397 6398 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6399 return -EINVAL; 6400 6401 spin_lock_irq(&phba->hbalock); 6402 6403 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6404 tmp_ptr = (uint32_t *)(buf + buf_off); 6405 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6406 } 6407 6408 spin_unlock_irq(&phba->hbalock); 6409 6410 return count; 6411 } 6412 6413 static struct bin_attribute sysfs_ctlreg_attr = { 6414 .attr = { 6415 .name = "ctlreg", 6416 .mode = S_IRUSR | S_IWUSR, 6417 }, 6418 .size = 256, 6419 .read = sysfs_ctlreg_read, 6420 .write = sysfs_ctlreg_write, 6421 }; 6422 6423 /** 6424 * sysfs_mbox_write - Write method for writing information via mbox 6425 * @filp: open sysfs file 6426 * @kobj: kernel kobject that contains the kernel class device. 6427 * @bin_attr: kernel attributes passed to us. 6428 * @buf: contains the data to be written to sysfs mbox. 6429 * @off: offset into buffer to beginning of data. 6430 * @count: bytes to transfer. 6431 * 6432 * Description: 6433 * Deprecated function. All mailbox access from user space is performed via the 6434 * bsg interface. 6435 * 6436 * Returns: 6437 * -EPERM operation not permitted 6438 **/ 6439 static ssize_t 6440 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6441 struct bin_attribute *bin_attr, 6442 char *buf, loff_t off, size_t count) 6443 { 6444 return -EPERM; 6445 } 6446 6447 /** 6448 * sysfs_mbox_read - Read method for reading information via mbox 6449 * @filp: open sysfs file 6450 * @kobj: kernel kobject that contains the kernel class device. 6451 * @bin_attr: kernel attributes passed to us. 6452 * @buf: contains the data to be read from sysfs mbox. 6453 * @off: offset into buffer to beginning of data. 6454 * @count: bytes to transfer. 6455 * 6456 * Description: 6457 * Deprecated function. All mailbox access from user space is performed via the 6458 * bsg interface. 6459 * 6460 * Returns: 6461 * -EPERM operation not permitted 6462 **/ 6463 static ssize_t 6464 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6465 struct bin_attribute *bin_attr, 6466 char *buf, loff_t off, size_t count) 6467 { 6468 return -EPERM; 6469 } 6470 6471 static struct bin_attribute sysfs_mbox_attr = { 6472 .attr = { 6473 .name = "mbox", 6474 .mode = S_IRUSR | S_IWUSR, 6475 }, 6476 .size = MAILBOX_SYSFS_MAX, 6477 .read = sysfs_mbox_read, 6478 .write = sysfs_mbox_write, 6479 }; 6480 6481 /** 6482 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6483 * @vport: address of lpfc vport structure. 6484 * 6485 * Return codes: 6486 * zero on success 6487 * error return code from sysfs_create_bin_file() 6488 **/ 6489 int 6490 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6491 { 6492 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6493 int error; 6494 6495 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6496 &sysfs_drvr_stat_data_attr); 6497 6498 /* Virtual ports do not need ctrl_reg and mbox */ 6499 if (error || vport->port_type == LPFC_NPIV_PORT) 6500 goto out; 6501 6502 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6503 &sysfs_ctlreg_attr); 6504 if (error) 6505 goto out_remove_stat_attr; 6506 6507 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6508 &sysfs_mbox_attr); 6509 if (error) 6510 goto out_remove_ctlreg_attr; 6511 6512 return 0; 6513 out_remove_ctlreg_attr: 6514 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6515 out_remove_stat_attr: 6516 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6517 &sysfs_drvr_stat_data_attr); 6518 out: 6519 return error; 6520 } 6521 6522 /** 6523 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6524 * @vport: address of lpfc vport structure. 6525 **/ 6526 void 6527 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6528 { 6529 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6530 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6531 &sysfs_drvr_stat_data_attr); 6532 /* Virtual ports do not need ctrl_reg and mbox */ 6533 if (vport->port_type == LPFC_NPIV_PORT) 6534 return; 6535 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6536 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6537 } 6538 6539 /* 6540 * Dynamic FC Host Attributes Support 6541 */ 6542 6543 /** 6544 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6545 * @shost: kernel scsi host pointer. 6546 **/ 6547 static void 6548 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6549 { 6550 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6551 6552 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6553 sizeof fc_host_symbolic_name(shost)); 6554 } 6555 6556 /** 6557 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6558 * @shost: kernel scsi host pointer. 6559 **/ 6560 static void 6561 lpfc_get_host_port_id(struct Scsi_Host *shost) 6562 { 6563 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6564 6565 /* note: fc_myDID already in cpu endianness */ 6566 fc_host_port_id(shost) = vport->fc_myDID; 6567 } 6568 6569 /** 6570 * lpfc_get_host_port_type - Set the value of the scsi host port type 6571 * @shost: kernel scsi host pointer. 6572 **/ 6573 static void 6574 lpfc_get_host_port_type(struct Scsi_Host *shost) 6575 { 6576 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6577 struct lpfc_hba *phba = vport->phba; 6578 6579 spin_lock_irq(shost->host_lock); 6580 6581 if (vport->port_type == LPFC_NPIV_PORT) { 6582 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6583 } else if (lpfc_is_link_up(phba)) { 6584 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6585 if (vport->fc_flag & FC_PUBLIC_LOOP) 6586 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6587 else 6588 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6589 } else { 6590 if (vport->fc_flag & FC_FABRIC) 6591 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6592 else 6593 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6594 } 6595 } else 6596 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6597 6598 spin_unlock_irq(shost->host_lock); 6599 } 6600 6601 /** 6602 * lpfc_get_host_port_state - Set the value of the scsi host port state 6603 * @shost: kernel scsi host pointer. 6604 **/ 6605 static void 6606 lpfc_get_host_port_state(struct Scsi_Host *shost) 6607 { 6608 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6609 struct lpfc_hba *phba = vport->phba; 6610 6611 spin_lock_irq(shost->host_lock); 6612 6613 if (vport->fc_flag & FC_OFFLINE_MODE) 6614 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6615 else { 6616 switch (phba->link_state) { 6617 case LPFC_LINK_UNKNOWN: 6618 case LPFC_LINK_DOWN: 6619 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6620 break; 6621 case LPFC_LINK_UP: 6622 case LPFC_CLEAR_LA: 6623 case LPFC_HBA_READY: 6624 /* Links up, reports port state accordingly */ 6625 if (vport->port_state < LPFC_VPORT_READY) 6626 fc_host_port_state(shost) = 6627 FC_PORTSTATE_BYPASSED; 6628 else 6629 fc_host_port_state(shost) = 6630 FC_PORTSTATE_ONLINE; 6631 break; 6632 case LPFC_HBA_ERROR: 6633 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6634 break; 6635 default: 6636 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6637 break; 6638 } 6639 } 6640 6641 spin_unlock_irq(shost->host_lock); 6642 } 6643 6644 /** 6645 * lpfc_get_host_speed - Set the value of the scsi host speed 6646 * @shost: kernel scsi host pointer. 6647 **/ 6648 static void 6649 lpfc_get_host_speed(struct Scsi_Host *shost) 6650 { 6651 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6652 struct lpfc_hba *phba = vport->phba; 6653 6654 spin_lock_irq(shost->host_lock); 6655 6656 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6657 switch(phba->fc_linkspeed) { 6658 case LPFC_LINK_SPEED_1GHZ: 6659 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6660 break; 6661 case LPFC_LINK_SPEED_2GHZ: 6662 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6663 break; 6664 case LPFC_LINK_SPEED_4GHZ: 6665 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6666 break; 6667 case LPFC_LINK_SPEED_8GHZ: 6668 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6669 break; 6670 case LPFC_LINK_SPEED_10GHZ: 6671 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6672 break; 6673 case LPFC_LINK_SPEED_16GHZ: 6674 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6675 break; 6676 case LPFC_LINK_SPEED_32GHZ: 6677 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6678 break; 6679 case LPFC_LINK_SPEED_64GHZ: 6680 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6681 break; 6682 case LPFC_LINK_SPEED_128GHZ: 6683 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6684 break; 6685 default: 6686 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6687 break; 6688 } 6689 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6690 switch (phba->fc_linkspeed) { 6691 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6692 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6693 break; 6694 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6695 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6696 break; 6697 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6698 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6699 break; 6700 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6701 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6702 break; 6703 default: 6704 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6705 break; 6706 } 6707 } else 6708 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6709 6710 spin_unlock_irq(shost->host_lock); 6711 } 6712 6713 /** 6714 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6715 * @shost: kernel scsi host pointer. 6716 **/ 6717 static void 6718 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6719 { 6720 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6721 struct lpfc_hba *phba = vport->phba; 6722 u64 node_name; 6723 6724 spin_lock_irq(shost->host_lock); 6725 6726 if ((vport->port_state > LPFC_FLOGI) && 6727 ((vport->fc_flag & FC_FABRIC) || 6728 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6729 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6730 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6731 else 6732 /* fabric is local port if there is no F/FL_Port */ 6733 node_name = 0; 6734 6735 spin_unlock_irq(shost->host_lock); 6736 6737 fc_host_fabric_name(shost) = node_name; 6738 } 6739 6740 /** 6741 * lpfc_get_stats - Return statistical information about the adapter 6742 * @shost: kernel scsi host pointer. 6743 * 6744 * Notes: 6745 * NULL on error for link down, no mbox pool, sli2 active, 6746 * management not allowed, memory allocation error, or mbox error. 6747 * 6748 * Returns: 6749 * NULL for error 6750 * address of the adapter host statistics 6751 **/ 6752 static struct fc_host_statistics * 6753 lpfc_get_stats(struct Scsi_Host *shost) 6754 { 6755 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6756 struct lpfc_hba *phba = vport->phba; 6757 struct lpfc_sli *psli = &phba->sli; 6758 struct fc_host_statistics *hs = &phba->link_stats; 6759 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6760 LPFC_MBOXQ_t *pmboxq; 6761 MAILBOX_t *pmb; 6762 int rc = 0; 6763 6764 /* 6765 * prevent udev from issuing mailbox commands until the port is 6766 * configured. 6767 */ 6768 if (phba->link_state < LPFC_LINK_DOWN || 6769 !phba->mbox_mem_pool || 6770 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6771 return NULL; 6772 6773 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6774 return NULL; 6775 6776 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6777 if (!pmboxq) 6778 return NULL; 6779 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6780 6781 pmb = &pmboxq->u.mb; 6782 pmb->mbxCommand = MBX_READ_STATUS; 6783 pmb->mbxOwner = OWN_HOST; 6784 pmboxq->ctx_buf = NULL; 6785 pmboxq->vport = vport; 6786 6787 if (vport->fc_flag & FC_OFFLINE_MODE) 6788 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6789 else 6790 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6791 6792 if (rc != MBX_SUCCESS) { 6793 if (rc != MBX_TIMEOUT) 6794 mempool_free(pmboxq, phba->mbox_mem_pool); 6795 return NULL; 6796 } 6797 6798 memset(hs, 0, sizeof (struct fc_host_statistics)); 6799 6800 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6801 /* 6802 * The MBX_READ_STATUS returns tx_k_bytes which has to 6803 * converted to words 6804 */ 6805 hs->tx_words = (uint64_t) 6806 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6807 * (uint64_t)256); 6808 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6809 hs->rx_words = (uint64_t) 6810 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6811 * (uint64_t)256); 6812 6813 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6814 pmb->mbxCommand = MBX_READ_LNK_STAT; 6815 pmb->mbxOwner = OWN_HOST; 6816 pmboxq->ctx_buf = NULL; 6817 pmboxq->vport = vport; 6818 6819 if (vport->fc_flag & FC_OFFLINE_MODE) 6820 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6821 else 6822 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6823 6824 if (rc != MBX_SUCCESS) { 6825 if (rc != MBX_TIMEOUT) 6826 mempool_free(pmboxq, phba->mbox_mem_pool); 6827 return NULL; 6828 } 6829 6830 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6831 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6832 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6833 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6834 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6835 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6836 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6837 6838 hs->link_failure_count -= lso->link_failure_count; 6839 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6840 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6841 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6842 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6843 hs->invalid_crc_count -= lso->invalid_crc_count; 6844 hs->error_frames -= lso->error_frames; 6845 6846 if (phba->hba_flag & HBA_FCOE_MODE) { 6847 hs->lip_count = -1; 6848 hs->nos_count = (phba->link_events >> 1); 6849 hs->nos_count -= lso->link_events; 6850 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6851 hs->lip_count = (phba->fc_eventTag >> 1); 6852 hs->lip_count -= lso->link_events; 6853 hs->nos_count = -1; 6854 } else { 6855 hs->lip_count = -1; 6856 hs->nos_count = (phba->fc_eventTag >> 1); 6857 hs->nos_count -= lso->link_events; 6858 } 6859 6860 hs->dumped_frames = -1; 6861 6862 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6863 6864 mempool_free(pmboxq, phba->mbox_mem_pool); 6865 6866 return hs; 6867 } 6868 6869 /** 6870 * lpfc_reset_stats - Copy the adapter link stats information 6871 * @shost: kernel scsi host pointer. 6872 **/ 6873 static void 6874 lpfc_reset_stats(struct Scsi_Host *shost) 6875 { 6876 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6877 struct lpfc_hba *phba = vport->phba; 6878 struct lpfc_sli *psli = &phba->sli; 6879 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6880 LPFC_MBOXQ_t *pmboxq; 6881 MAILBOX_t *pmb; 6882 int rc = 0; 6883 6884 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6885 return; 6886 6887 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6888 if (!pmboxq) 6889 return; 6890 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6891 6892 pmb = &pmboxq->u.mb; 6893 pmb->mbxCommand = MBX_READ_STATUS; 6894 pmb->mbxOwner = OWN_HOST; 6895 pmb->un.varWords[0] = 0x1; /* reset request */ 6896 pmboxq->ctx_buf = NULL; 6897 pmboxq->vport = vport; 6898 6899 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6900 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6901 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6902 else 6903 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6904 6905 if (rc != MBX_SUCCESS) { 6906 if (rc != MBX_TIMEOUT) 6907 mempool_free(pmboxq, phba->mbox_mem_pool); 6908 return; 6909 } 6910 6911 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6912 pmb->mbxCommand = MBX_READ_LNK_STAT; 6913 pmb->mbxOwner = OWN_HOST; 6914 pmboxq->ctx_buf = NULL; 6915 pmboxq->vport = vport; 6916 6917 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6918 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6919 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6920 else 6921 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6922 6923 if (rc != MBX_SUCCESS) { 6924 if (rc != MBX_TIMEOUT) 6925 mempool_free( pmboxq, phba->mbox_mem_pool); 6926 return; 6927 } 6928 6929 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6930 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6931 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6932 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6933 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6934 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6935 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6936 if (phba->hba_flag & HBA_FCOE_MODE) 6937 lso->link_events = (phba->link_events >> 1); 6938 else 6939 lso->link_events = (phba->fc_eventTag >> 1); 6940 6941 psli->stats_start = ktime_get_seconds(); 6942 6943 mempool_free(pmboxq, phba->mbox_mem_pool); 6944 6945 return; 6946 } 6947 6948 /* 6949 * The LPFC driver treats linkdown handling as target loss events so there 6950 * are no sysfs handlers for link_down_tmo. 6951 */ 6952 6953 /** 6954 * lpfc_get_node_by_target - Return the nodelist for a target 6955 * @starget: kernel scsi target pointer. 6956 * 6957 * Returns: 6958 * address of the node list if found 6959 * NULL target not found 6960 **/ 6961 static struct lpfc_nodelist * 6962 lpfc_get_node_by_target(struct scsi_target *starget) 6963 { 6964 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6965 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6966 struct lpfc_nodelist *ndlp; 6967 6968 spin_lock_irq(shost->host_lock); 6969 /* Search for this, mapped, target ID */ 6970 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6971 if (NLP_CHK_NODE_ACT(ndlp) && 6972 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6973 starget->id == ndlp->nlp_sid) { 6974 spin_unlock_irq(shost->host_lock); 6975 return ndlp; 6976 } 6977 } 6978 spin_unlock_irq(shost->host_lock); 6979 return NULL; 6980 } 6981 6982 /** 6983 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6984 * @starget: kernel scsi target pointer. 6985 **/ 6986 static void 6987 lpfc_get_starget_port_id(struct scsi_target *starget) 6988 { 6989 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6990 6991 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6992 } 6993 6994 /** 6995 * lpfc_get_starget_node_name - Set the target node name 6996 * @starget: kernel scsi target pointer. 6997 * 6998 * Description: Set the target node name to the ndlp node name wwn or zero. 6999 **/ 7000 static void 7001 lpfc_get_starget_node_name(struct scsi_target *starget) 7002 { 7003 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7004 7005 fc_starget_node_name(starget) = 7006 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 7007 } 7008 7009 /** 7010 * lpfc_get_starget_port_name - Set the target port name 7011 * @starget: kernel scsi target pointer. 7012 * 7013 * Description: set the target port name to the ndlp port name wwn or zero. 7014 **/ 7015 static void 7016 lpfc_get_starget_port_name(struct scsi_target *starget) 7017 { 7018 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 7019 7020 fc_starget_port_name(starget) = 7021 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 7022 } 7023 7024 /** 7025 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 7026 * @rport: fc rport address. 7027 * @timeout: new value for dev loss tmo. 7028 * 7029 * Description: 7030 * If timeout is non zero set the dev_loss_tmo to timeout, else set 7031 * dev_loss_tmo to one. 7032 **/ 7033 static void 7034 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 7035 { 7036 struct lpfc_rport_data *rdata = rport->dd_data; 7037 struct lpfc_nodelist *ndlp = rdata->pnode; 7038 #if (IS_ENABLED(CONFIG_NVME_FC)) 7039 struct lpfc_nvme_rport *nrport = NULL; 7040 #endif 7041 7042 if (timeout) 7043 rport->dev_loss_tmo = timeout; 7044 else 7045 rport->dev_loss_tmo = 1; 7046 7047 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 7048 dev_info(&rport->dev, "Cannot find remote node to " 7049 "set rport dev loss tmo, port_id x%x\n", 7050 rport->port_id); 7051 return; 7052 } 7053 7054 #if (IS_ENABLED(CONFIG_NVME_FC)) 7055 nrport = lpfc_ndlp_get_nrport(ndlp); 7056 7057 if (nrport && nrport->remoteport) 7058 nvme_fc_set_remoteport_devloss(nrport->remoteport, 7059 rport->dev_loss_tmo); 7060 #endif 7061 } 7062 7063 /** 7064 * lpfc_rport_show_function - Return rport target information 7065 * 7066 * Description: 7067 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7068 * 7069 * lpfc_show_rport_##field: returns the bytes formatted in buf 7070 * @cdev: class converted to an fc_rport. 7071 * @buf: on return contains the target_field or zero. 7072 * 7073 * Returns: size of formatted string. 7074 **/ 7075 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7076 static ssize_t \ 7077 lpfc_show_rport_##field (struct device *dev, \ 7078 struct device_attribute *attr, \ 7079 char *buf) \ 7080 { \ 7081 struct fc_rport *rport = transport_class_to_rport(dev); \ 7082 struct lpfc_rport_data *rdata = rport->hostdata; \ 7083 return scnprintf(buf, sz, format_string, \ 7084 (rdata->target) ? cast rdata->target->field : 0); \ 7085 } 7086 7087 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7088 lpfc_rport_show_function(field, format_string, sz, ) \ 7089 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7090 7091 /** 7092 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7093 * @fc_vport: The fc_vport who's symbolic name has been changed. 7094 * 7095 * Description: 7096 * This function is called by the transport after the @fc_vport's symbolic name 7097 * has been changed. This function re-registers the symbolic name with the 7098 * switch to propagate the change into the fabric if the vport is active. 7099 **/ 7100 static void 7101 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7102 { 7103 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7104 7105 if (vport->port_state == LPFC_VPORT_READY) 7106 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7107 } 7108 7109 /** 7110 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7111 * @phba: Pointer to lpfc_hba struct. 7112 * 7113 * This function is called by the lpfc_get_cfgparam() routine to set the 7114 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7115 * log message according to the module's lpfc_log_verbose parameter setting 7116 * before hba port or vport created. 7117 **/ 7118 static void 7119 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7120 { 7121 phba->cfg_log_verbose = verbose; 7122 } 7123 7124 struct fc_function_template lpfc_transport_functions = { 7125 /* fixed attributes the driver supports */ 7126 .show_host_node_name = 1, 7127 .show_host_port_name = 1, 7128 .show_host_supported_classes = 1, 7129 .show_host_supported_fc4s = 1, 7130 .show_host_supported_speeds = 1, 7131 .show_host_maxframe_size = 1, 7132 7133 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7134 .show_host_symbolic_name = 1, 7135 7136 /* dynamic attributes the driver supports */ 7137 .get_host_port_id = lpfc_get_host_port_id, 7138 .show_host_port_id = 1, 7139 7140 .get_host_port_type = lpfc_get_host_port_type, 7141 .show_host_port_type = 1, 7142 7143 .get_host_port_state = lpfc_get_host_port_state, 7144 .show_host_port_state = 1, 7145 7146 /* active_fc4s is shown but doesn't change (thus no get function) */ 7147 .show_host_active_fc4s = 1, 7148 7149 .get_host_speed = lpfc_get_host_speed, 7150 .show_host_speed = 1, 7151 7152 .get_host_fabric_name = lpfc_get_host_fabric_name, 7153 .show_host_fabric_name = 1, 7154 7155 /* 7156 * The LPFC driver treats linkdown handling as target loss events 7157 * so there are no sysfs handlers for link_down_tmo. 7158 */ 7159 7160 .get_fc_host_stats = lpfc_get_stats, 7161 .reset_fc_host_stats = lpfc_reset_stats, 7162 7163 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7164 .show_rport_maxframe_size = 1, 7165 .show_rport_supported_classes = 1, 7166 7167 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7168 .show_rport_dev_loss_tmo = 1, 7169 7170 .get_starget_port_id = lpfc_get_starget_port_id, 7171 .show_starget_port_id = 1, 7172 7173 .get_starget_node_name = lpfc_get_starget_node_name, 7174 .show_starget_node_name = 1, 7175 7176 .get_starget_port_name = lpfc_get_starget_port_name, 7177 .show_starget_port_name = 1, 7178 7179 .issue_fc_host_lip = lpfc_issue_lip, 7180 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7181 .terminate_rport_io = lpfc_terminate_rport_io, 7182 7183 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7184 7185 .vport_disable = lpfc_vport_disable, 7186 7187 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7188 7189 .bsg_request = lpfc_bsg_request, 7190 .bsg_timeout = lpfc_bsg_timeout, 7191 }; 7192 7193 struct fc_function_template lpfc_vport_transport_functions = { 7194 /* fixed attributes the driver supports */ 7195 .show_host_node_name = 1, 7196 .show_host_port_name = 1, 7197 .show_host_supported_classes = 1, 7198 .show_host_supported_fc4s = 1, 7199 .show_host_supported_speeds = 1, 7200 .show_host_maxframe_size = 1, 7201 7202 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7203 .show_host_symbolic_name = 1, 7204 7205 /* dynamic attributes the driver supports */ 7206 .get_host_port_id = lpfc_get_host_port_id, 7207 .show_host_port_id = 1, 7208 7209 .get_host_port_type = lpfc_get_host_port_type, 7210 .show_host_port_type = 1, 7211 7212 .get_host_port_state = lpfc_get_host_port_state, 7213 .show_host_port_state = 1, 7214 7215 /* active_fc4s is shown but doesn't change (thus no get function) */ 7216 .show_host_active_fc4s = 1, 7217 7218 .get_host_speed = lpfc_get_host_speed, 7219 .show_host_speed = 1, 7220 7221 .get_host_fabric_name = lpfc_get_host_fabric_name, 7222 .show_host_fabric_name = 1, 7223 7224 /* 7225 * The LPFC driver treats linkdown handling as target loss events 7226 * so there are no sysfs handlers for link_down_tmo. 7227 */ 7228 7229 .get_fc_host_stats = lpfc_get_stats, 7230 .reset_fc_host_stats = lpfc_reset_stats, 7231 7232 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7233 .show_rport_maxframe_size = 1, 7234 .show_rport_supported_classes = 1, 7235 7236 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7237 .show_rport_dev_loss_tmo = 1, 7238 7239 .get_starget_port_id = lpfc_get_starget_port_id, 7240 .show_starget_port_id = 1, 7241 7242 .get_starget_node_name = lpfc_get_starget_node_name, 7243 .show_starget_node_name = 1, 7244 7245 .get_starget_port_name = lpfc_get_starget_port_name, 7246 .show_starget_port_name = 1, 7247 7248 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7249 .terminate_rport_io = lpfc_terminate_rport_io, 7250 7251 .vport_disable = lpfc_vport_disable, 7252 7253 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7254 }; 7255 7256 /** 7257 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7258 * Mode 7259 * @phba: lpfc_hba pointer. 7260 **/ 7261 static void 7262 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7263 { 7264 /* If the adapter supports FCoE mode */ 7265 switch (phba->pcidev->device) { 7266 case PCI_DEVICE_ID_SKYHAWK: 7267 case PCI_DEVICE_ID_SKYHAWK_VF: 7268 case PCI_DEVICE_ID_LANCER_FCOE: 7269 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7270 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7271 case PCI_DEVICE_ID_HORNET: 7272 case PCI_DEVICE_ID_TIGERSHARK: 7273 case PCI_DEVICE_ID_TOMCAT: 7274 phba->hba_flag |= HBA_FCOE_MODE; 7275 break; 7276 default: 7277 /* for others, clear the flag */ 7278 phba->hba_flag &= ~HBA_FCOE_MODE; 7279 } 7280 } 7281 7282 /** 7283 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7284 * @phba: lpfc_hba pointer. 7285 **/ 7286 void 7287 lpfc_get_cfgparam(struct lpfc_hba *phba) 7288 { 7289 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7290 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7291 lpfc_ns_query_init(phba, lpfc_ns_query); 7292 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7293 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7294 lpfc_cr_count_init(phba, lpfc_cr_count); 7295 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7296 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7297 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7298 lpfc_ack0_init(phba, lpfc_ack0); 7299 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7300 lpfc_topology_init(phba, lpfc_topology); 7301 lpfc_link_speed_init(phba, lpfc_link_speed); 7302 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7303 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7304 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7305 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7306 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7307 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7308 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7309 lpfc_use_msi_init(phba, lpfc_use_msi); 7310 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7311 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7312 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7313 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7314 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7315 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7316 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7317 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7318 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7319 7320 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7321 if (phba->sli_rev != LPFC_SLI_REV4) 7322 phba->cfg_EnableXLane = 0; 7323 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7324 7325 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7326 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7327 phba->cfg_oas_lun_state = 0; 7328 phba->cfg_oas_lun_status = 0; 7329 phba->cfg_oas_flags = 0; 7330 phba->cfg_oas_priority = 0; 7331 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7332 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7333 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7334 if (phba->sli_rev == LPFC_SLI_REV4) 7335 phba->cfg_poll = 0; 7336 else 7337 phba->cfg_poll = lpfc_poll; 7338 7339 /* Get the function mode */ 7340 lpfc_get_hba_function_mode(phba); 7341 7342 /* BlockGuard allowed for FC only. */ 7343 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7344 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7345 "0581 BlockGuard feature not supported\n"); 7346 /* If set, clear the BlockGuard support param */ 7347 phba->cfg_enable_bg = 0; 7348 } else if (phba->cfg_enable_bg) { 7349 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7350 } 7351 7352 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7353 7354 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7355 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7356 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7357 7358 /* Initialize first burst. Target vs Initiator are different. */ 7359 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7360 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7361 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7362 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7363 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7364 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7365 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7366 7367 if (phba->sli_rev != LPFC_SLI_REV4) { 7368 /* NVME only supported on SLI4 */ 7369 phba->nvmet_support = 0; 7370 phba->cfg_nvmet_mrq = 0; 7371 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7372 phba->cfg_enable_bbcr = 0; 7373 phba->cfg_xri_rebalancing = 0; 7374 } else { 7375 /* We MUST have FCP support */ 7376 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7377 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7378 } 7379 7380 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7381 7382 phba->cfg_enable_pbde = 0; 7383 7384 /* A value of 0 means use the number of CPUs found in the system */ 7385 if (phba->cfg_hdw_queue == 0) 7386 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7387 if (phba->cfg_irq_chann == 0) 7388 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7389 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7390 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7391 7392 phba->cfg_soft_wwnn = 0L; 7393 phba->cfg_soft_wwpn = 0L; 7394 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7395 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7396 lpfc_aer_support_init(phba, lpfc_aer_support); 7397 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7398 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7399 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7400 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7401 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7402 phba->cfg_enable_dss = 1; 7403 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7404 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7405 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7406 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7407 7408 return; 7409 } 7410 7411 /** 7412 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7413 * dependencies between protocols and roles. 7414 * @phba: lpfc_hba pointer. 7415 **/ 7416 void 7417 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7418 { 7419 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) 7420 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7421 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) 7422 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7423 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7424 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7425 7426 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7427 phba->nvmet_support) { 7428 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7429 7430 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7431 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7432 "NVME Target PRLI ACC enable_fb ", 7433 phba->cfg_nvme_enable_fb, 7434 phba->cfg_nvmet_fb_size, 7435 LPFC_NVMET_FB_SZ_MAX); 7436 7437 if (phba->cfg_nvme_enable_fb == 0) 7438 phba->cfg_nvmet_fb_size = 0; 7439 else { 7440 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7441 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7442 } 7443 7444 if (!phba->cfg_nvmet_mrq) 7445 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7446 7447 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7448 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7449 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7450 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7451 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7452 phba->cfg_nvmet_mrq); 7453 } 7454 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7455 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7456 7457 } else { 7458 /* Not NVME Target mode. Turn off Target parameters. */ 7459 phba->nvmet_support = 0; 7460 phba->cfg_nvmet_mrq = 0; 7461 phba->cfg_nvmet_fb_size = 0; 7462 } 7463 } 7464 7465 /** 7466 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7467 * @vport: lpfc_vport pointer. 7468 **/ 7469 void 7470 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7471 { 7472 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7473 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7474 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7475 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7476 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7477 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7478 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7479 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7480 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7481 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7482 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7483 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7484 lpfc_max_luns_init(vport, lpfc_max_luns); 7485 lpfc_scan_down_init(vport, lpfc_scan_down); 7486 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7487 return; 7488 } 7489