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_sriov_hw_max_virtfn_show - Return maximum number of virtual functions 2235 * @dev: class converted to a Scsi_host structure. 2236 * @attr: device attribute, not used. 2237 * @buf: on return contains the formatted support level. 2238 * 2239 * Description: 2240 * Returns the maximum number of virtual functions a physical function can 2241 * support, 0 will be returned if called on virtual function. 2242 * 2243 * Returns: size of formatted string. 2244 **/ 2245 static ssize_t 2246 lpfc_sriov_hw_max_virtfn_show(struct device *dev, 2247 struct device_attribute *attr, 2248 char *buf) 2249 { 2250 struct Scsi_Host *shost = class_to_shost(dev); 2251 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2252 struct lpfc_hba *phba = vport->phba; 2253 uint16_t max_nr_virtfn; 2254 2255 max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); 2256 return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); 2257 } 2258 2259 static inline bool lpfc_rangecheck(uint val, uint min, uint max) 2260 { 2261 return val >= min && val <= max; 2262 } 2263 2264 /** 2265 * lpfc_enable_bbcr_set: Sets an attribute value. 2266 * @phba: pointer the the adapter structure. 2267 * @val: integer attribute value. 2268 * 2269 * Description: 2270 * Validates the min and max values then sets the 2271 * adapter config field if in the valid range. prints error message 2272 * and does not set the parameter if invalid. 2273 * 2274 * Returns: 2275 * zero on success 2276 * -EINVAL if val is invalid 2277 */ 2278 static ssize_t 2279 lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) 2280 { 2281 if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { 2282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2283 "3068 %s_enable_bbcr changed from %d to %d\n", 2284 LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val); 2285 phba->cfg_enable_bbcr = val; 2286 return 0; 2287 } 2288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2289 "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n", 2290 LPFC_DRIVER_NAME, val); 2291 return -EINVAL; 2292 } 2293 2294 /** 2295 * lpfc_param_show - Return a cfg attribute value in decimal 2296 * 2297 * Description: 2298 * Macro that given an attr e.g. hba_queue_depth expands 2299 * into a function with the name lpfc_hba_queue_depth_show. 2300 * 2301 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. 2302 * @dev: class device that is converted into a Scsi_host. 2303 * @attr: device attribute, not used. 2304 * @buf: on return contains the attribute value in decimal. 2305 * 2306 * Returns: size of formatted string. 2307 **/ 2308 #define lpfc_param_show(attr) \ 2309 static ssize_t \ 2310 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2311 char *buf) \ 2312 { \ 2313 struct Scsi_Host *shost = class_to_shost(dev);\ 2314 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2315 struct lpfc_hba *phba = vport->phba;\ 2316 return scnprintf(buf, PAGE_SIZE, "%d\n",\ 2317 phba->cfg_##attr);\ 2318 } 2319 2320 /** 2321 * lpfc_param_hex_show - Return a cfg attribute value in hex 2322 * 2323 * Description: 2324 * Macro that given an attr e.g. hba_queue_depth expands 2325 * into a function with the name lpfc_hba_queue_depth_show 2326 * 2327 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. 2328 * @dev: class device that is converted into a Scsi_host. 2329 * @attr: device attribute, not used. 2330 * @buf: on return contains the attribute value in hexadecimal. 2331 * 2332 * Returns: size of formatted string. 2333 **/ 2334 #define lpfc_param_hex_show(attr) \ 2335 static ssize_t \ 2336 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2337 char *buf) \ 2338 { \ 2339 struct Scsi_Host *shost = class_to_shost(dev);\ 2340 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2341 struct lpfc_hba *phba = vport->phba;\ 2342 uint val = 0;\ 2343 val = phba->cfg_##attr;\ 2344 return scnprintf(buf, PAGE_SIZE, "%#x\n",\ 2345 phba->cfg_##attr);\ 2346 } 2347 2348 /** 2349 * lpfc_param_init - Initializes a cfg attribute 2350 * 2351 * Description: 2352 * Macro that given an attr e.g. hba_queue_depth expands 2353 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2354 * takes a default argument, a minimum and maximum argument. 2355 * 2356 * lpfc_##attr##_init: Initializes an attribute. 2357 * @phba: pointer the the adapter structure. 2358 * @val: integer attribute value. 2359 * 2360 * Validates the min and max values then sets the adapter config field 2361 * accordingly, or uses the default if out of range and prints an error message. 2362 * 2363 * Returns: 2364 * zero on success 2365 * -EINVAL if default used 2366 **/ 2367 #define lpfc_param_init(attr, default, minval, maxval) \ 2368 static int \ 2369 lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ 2370 { \ 2371 if (lpfc_rangecheck(val, minval, maxval)) {\ 2372 phba->cfg_##attr = val;\ 2373 return 0;\ 2374 }\ 2375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2376 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 2377 "allowed range is ["#minval", "#maxval"]\n", val); \ 2378 phba->cfg_##attr = default;\ 2379 return -EINVAL;\ 2380 } 2381 2382 /** 2383 * lpfc_param_set - Set a cfg attribute value 2384 * 2385 * Description: 2386 * Macro that given an attr e.g. hba_queue_depth expands 2387 * into a function with the name lpfc_hba_queue_depth_set 2388 * 2389 * lpfc_##attr##_set: Sets an attribute value. 2390 * @phba: pointer the the adapter structure. 2391 * @val: integer attribute value. 2392 * 2393 * Description: 2394 * Validates the min and max values then sets the 2395 * adapter config field if in the valid range. prints error message 2396 * and does not set the parameter if invalid. 2397 * 2398 * Returns: 2399 * zero on success 2400 * -EINVAL if val is invalid 2401 **/ 2402 #define lpfc_param_set(attr, default, minval, maxval) \ 2403 static int \ 2404 lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ 2405 { \ 2406 if (lpfc_rangecheck(val, minval, maxval)) {\ 2407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2408 "3052 lpfc_" #attr " changed from %d to %d\n", \ 2409 phba->cfg_##attr, val); \ 2410 phba->cfg_##attr = val;\ 2411 return 0;\ 2412 }\ 2413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ 2414 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 2415 "allowed range is ["#minval", "#maxval"]\n", val); \ 2416 return -EINVAL;\ 2417 } 2418 2419 /** 2420 * lpfc_param_store - Set a vport attribute value 2421 * 2422 * Description: 2423 * Macro that given an attr e.g. hba_queue_depth expands 2424 * into a function with the name lpfc_hba_queue_depth_store. 2425 * 2426 * lpfc_##attr##_store: Set an sttribute value. 2427 * @dev: class device that is converted into a Scsi_host. 2428 * @attr: device attribute, not used. 2429 * @buf: contains the attribute value in ascii. 2430 * @count: not used. 2431 * 2432 * Description: 2433 * Convert the ascii text number to an integer, then 2434 * use the lpfc_##attr##_set function to set the value. 2435 * 2436 * Returns: 2437 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2438 * length of buffer upon success. 2439 **/ 2440 #define lpfc_param_store(attr) \ 2441 static ssize_t \ 2442 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2443 const char *buf, size_t count) \ 2444 { \ 2445 struct Scsi_Host *shost = class_to_shost(dev);\ 2446 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2447 struct lpfc_hba *phba = vport->phba;\ 2448 uint val = 0;\ 2449 if (!isdigit(buf[0]))\ 2450 return -EINVAL;\ 2451 if (sscanf(buf, "%i", &val) != 1)\ 2452 return -EINVAL;\ 2453 if (lpfc_##attr##_set(phba, val) == 0) \ 2454 return strlen(buf);\ 2455 else \ 2456 return -EINVAL;\ 2457 } 2458 2459 /** 2460 * lpfc_vport_param_show - Return decimal formatted cfg attribute value 2461 * 2462 * Description: 2463 * Macro that given an attr e.g. hba_queue_depth expands 2464 * into a function with the name lpfc_hba_queue_depth_show 2465 * 2466 * lpfc_##attr##_show: prints the attribute value in decimal. 2467 * @dev: class device that is converted into a Scsi_host. 2468 * @attr: device attribute, not used. 2469 * @buf: on return contains the attribute value in decimal. 2470 * 2471 * Returns: length of formatted string. 2472 **/ 2473 #define lpfc_vport_param_show(attr) \ 2474 static ssize_t \ 2475 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2476 char *buf) \ 2477 { \ 2478 struct Scsi_Host *shost = class_to_shost(dev);\ 2479 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2480 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 2481 } 2482 2483 /** 2484 * lpfc_vport_param_hex_show - Return hex formatted attribute value 2485 * 2486 * Description: 2487 * Macro that given an attr e.g. 2488 * hba_queue_depth expands into a function with the name 2489 * lpfc_hba_queue_depth_show 2490 * 2491 * lpfc_##attr##_show: prints the attribute value in hexadecimal. 2492 * @dev: class device that is converted into a Scsi_host. 2493 * @attr: device attribute, not used. 2494 * @buf: on return contains the attribute value in hexadecimal. 2495 * 2496 * Returns: length of formatted string. 2497 **/ 2498 #define lpfc_vport_param_hex_show(attr) \ 2499 static ssize_t \ 2500 lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 2501 char *buf) \ 2502 { \ 2503 struct Scsi_Host *shost = class_to_shost(dev);\ 2504 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2505 return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 2506 } 2507 2508 /** 2509 * lpfc_vport_param_init - Initialize a vport cfg attribute 2510 * 2511 * Description: 2512 * Macro that given an attr e.g. hba_queue_depth expands 2513 * into a function with the name lpfc_hba_queue_depth_init. The macro also 2514 * takes a default argument, a minimum and maximum argument. 2515 * 2516 * lpfc_##attr##_init: validates the min and max values then sets the 2517 * adapter config field accordingly, or uses the default if out of range 2518 * and prints an error message. 2519 * @phba: pointer the the adapter structure. 2520 * @val: integer attribute value. 2521 * 2522 * Returns: 2523 * zero on success 2524 * -EINVAL if default used 2525 **/ 2526 #define lpfc_vport_param_init(attr, default, minval, maxval) \ 2527 static int \ 2528 lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ 2529 { \ 2530 if (lpfc_rangecheck(val, minval, maxval)) {\ 2531 vport->cfg_##attr = val;\ 2532 return 0;\ 2533 }\ 2534 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2535 "0423 lpfc_"#attr" attribute cannot be set to %d, "\ 2536 "allowed range is ["#minval", "#maxval"]\n", val); \ 2537 vport->cfg_##attr = default;\ 2538 return -EINVAL;\ 2539 } 2540 2541 /** 2542 * lpfc_vport_param_set - Set a vport cfg attribute 2543 * 2544 * Description: 2545 * Macro that given an attr e.g. hba_queue_depth expands 2546 * into a function with the name lpfc_hba_queue_depth_set 2547 * 2548 * lpfc_##attr##_set: validates the min and max values then sets the 2549 * adapter config field if in the valid range. prints error message 2550 * and does not set the parameter if invalid. 2551 * @phba: pointer the the adapter structure. 2552 * @val: integer attribute value. 2553 * 2554 * Returns: 2555 * zero on success 2556 * -EINVAL if val is invalid 2557 **/ 2558 #define lpfc_vport_param_set(attr, default, minval, maxval) \ 2559 static int \ 2560 lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ 2561 { \ 2562 if (lpfc_rangecheck(val, minval, maxval)) {\ 2563 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2564 "3053 lpfc_" #attr \ 2565 " changed from %d (x%x) to %d (x%x)\n", \ 2566 vport->cfg_##attr, vport->cfg_##attr, \ 2567 val, val); \ 2568 vport->cfg_##attr = val;\ 2569 return 0;\ 2570 }\ 2571 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 2572 "0424 lpfc_"#attr" attribute cannot be set to %d, "\ 2573 "allowed range is ["#minval", "#maxval"]\n", val); \ 2574 return -EINVAL;\ 2575 } 2576 2577 /** 2578 * lpfc_vport_param_store - Set a vport attribute 2579 * 2580 * Description: 2581 * Macro that given an attr e.g. hba_queue_depth 2582 * expands into a function with the name lpfc_hba_queue_depth_store 2583 * 2584 * lpfc_##attr##_store: convert the ascii text number to an integer, then 2585 * use the lpfc_##attr##_set function to set the value. 2586 * @cdev: class device that is converted into a Scsi_host. 2587 * @buf: contains the attribute value in decimal. 2588 * @count: not used. 2589 * 2590 * Returns: 2591 * -EINVAL if val is invalid or lpfc_##attr##_set() fails 2592 * length of buffer upon success. 2593 **/ 2594 #define lpfc_vport_param_store(attr) \ 2595 static ssize_t \ 2596 lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 2597 const char *buf, size_t count) \ 2598 { \ 2599 struct Scsi_Host *shost = class_to_shost(dev);\ 2600 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ 2601 uint val = 0;\ 2602 if (!isdigit(buf[0]))\ 2603 return -EINVAL;\ 2604 if (sscanf(buf, "%i", &val) != 1)\ 2605 return -EINVAL;\ 2606 if (lpfc_##attr##_set(vport, val) == 0) \ 2607 return strlen(buf);\ 2608 else \ 2609 return -EINVAL;\ 2610 } 2611 2612 2613 static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); 2614 static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); 2615 static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); 2616 static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); 2617 static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); 2618 static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); 2619 static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); 2620 static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); 2621 static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); 2622 static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); 2623 static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); 2624 static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); 2625 static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); 2626 static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); 2627 static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, 2628 lpfc_link_state_store); 2629 static DEVICE_ATTR(option_rom_version, S_IRUGO, 2630 lpfc_option_rom_version_show, NULL); 2631 static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 2632 lpfc_num_discovered_ports_show, NULL); 2633 static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); 2634 static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 2635 static DEVICE_ATTR_RO(lpfc_drvr_version); 2636 static DEVICE_ATTR_RO(lpfc_enable_fip); 2637 static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 2638 lpfc_board_mode_show, lpfc_board_mode_store); 2639 static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); 2640 static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); 2641 static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); 2642 static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); 2643 static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); 2644 static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); 2645 static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); 2646 static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); 2647 static DEVICE_ATTR_RO(lpfc_temp_sensor); 2648 static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); 2649 static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); 2650 static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, 2651 NULL); 2652 2653 static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 2654 #define WWN_SZ 8 2655 /** 2656 * lpfc_wwn_set - Convert string to the 8 byte WWN value. 2657 * @buf: WWN string. 2658 * @cnt: Length of string. 2659 * @wwn: Array to receive converted wwn value. 2660 * 2661 * Returns: 2662 * -EINVAL if the buffer does not contain a valid wwn 2663 * 0 success 2664 **/ 2665 static size_t 2666 lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) 2667 { 2668 unsigned int i, j; 2669 2670 /* Count may include a LF at end of string */ 2671 if (buf[cnt-1] == '\n') 2672 cnt--; 2673 2674 if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || 2675 ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) 2676 return -EINVAL; 2677 2678 memset(wwn, 0, WWN_SZ); 2679 2680 /* Validate and store the new name */ 2681 for (i = 0, j = 0; i < 16; i++) { 2682 if ((*buf >= 'a') && (*buf <= 'f')) 2683 j = ((j << 4) | ((*buf++ - 'a') + 10)); 2684 else if ((*buf >= 'A') && (*buf <= 'F')) 2685 j = ((j << 4) | ((*buf++ - 'A') + 10)); 2686 else if ((*buf >= '0') && (*buf <= '9')) 2687 j = ((j << 4) | (*buf++ - '0')); 2688 else 2689 return -EINVAL; 2690 if (i % 2) { 2691 wwn[i/2] = j & 0xff; 2692 j = 0; 2693 } 2694 } 2695 return 0; 2696 } 2697 /** 2698 * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid 2699 * @dev: class device that is converted into a Scsi_host. 2700 * @attr: device attribute, not used. 2701 * @buf: containing the string lpfc_soft_wwn_key. 2702 * @count: must be size of lpfc_soft_wwn_key. 2703 * 2704 * Returns: 2705 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key 2706 * length of buf indicates success 2707 **/ 2708 static ssize_t 2709 lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 2710 const char *buf, size_t count) 2711 { 2712 struct Scsi_Host *shost = class_to_shost(dev); 2713 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2714 struct lpfc_hba *phba = vport->phba; 2715 unsigned int cnt = count; 2716 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 2717 u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0]; 2718 2719 /* 2720 * We're doing a simple sanity check for soft_wwpn setting. 2721 * We require that the user write a specific key to enable 2722 * the soft_wwpn attribute to be settable. Once the attribute 2723 * is written, the enable key resets. If further updates are 2724 * desired, the key must be written again to re-enable the 2725 * attribute. 2726 * 2727 * The "key" is not secret - it is a hardcoded string shown 2728 * here. The intent is to protect against the random user or 2729 * application that is just writing attributes. 2730 */ 2731 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) { 2732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2733 "0051 "LPFC_DRIVER_NAME" soft wwpn can not" 2734 " be enabled: fawwpn is enabled\n"); 2735 return -EINVAL; 2736 } 2737 2738 /* count may include a LF at end of string */ 2739 if (buf[cnt-1] == '\n') 2740 cnt--; 2741 2742 if ((cnt != strlen(lpfc_soft_wwn_key)) || 2743 (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) 2744 return -EINVAL; 2745 2746 phba->soft_wwn_enable = 1; 2747 2748 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2749 "lpfc%d: soft_wwpn assignment has been enabled.\n", 2750 phba->brd_no); 2751 dev_printk(KERN_WARNING, &phba->pcidev->dev, 2752 " The soft_wwpn feature is not supported by Broadcom."); 2753 2754 return count; 2755 } 2756 static DEVICE_ATTR_WO(lpfc_soft_wwn_enable); 2757 2758 /** 2759 * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter 2760 * @dev: class device that is converted into a Scsi_host. 2761 * @attr: device attribute, not used. 2762 * @buf: on return contains the wwpn in hexadecimal. 2763 * 2764 * Returns: size of formatted string. 2765 **/ 2766 static ssize_t 2767 lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 2768 char *buf) 2769 { 2770 struct Scsi_Host *shost = class_to_shost(dev); 2771 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2772 struct lpfc_hba *phba = vport->phba; 2773 2774 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2775 (unsigned long long)phba->cfg_soft_wwpn); 2776 } 2777 2778 /** 2779 * lpfc_soft_wwpn_store - Set the ww port name of the adapter 2780 * @dev class device that is converted into a Scsi_host. 2781 * @attr: device attribute, not used. 2782 * @buf: contains the wwpn in hexadecimal. 2783 * @count: number of wwpn bytes in buf 2784 * 2785 * Returns: 2786 * -EACCES hba reset not enabled, adapter over temp 2787 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid 2788 * -EIO error taking adapter offline or online 2789 * value of count on success 2790 **/ 2791 static ssize_t 2792 lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 2793 const char *buf, size_t count) 2794 { 2795 struct Scsi_Host *shost = class_to_shost(dev); 2796 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2797 struct lpfc_hba *phba = vport->phba; 2798 struct completion online_compl; 2799 int stat1 = 0, stat2 = 0; 2800 unsigned int cnt = count; 2801 u8 wwpn[WWN_SZ]; 2802 int rc; 2803 2804 if (!phba->cfg_enable_hba_reset) 2805 return -EACCES; 2806 spin_lock_irq(&phba->hbalock); 2807 if (phba->over_temp_state == HBA_OVER_TEMP) { 2808 spin_unlock_irq(&phba->hbalock); 2809 return -EACCES; 2810 } 2811 spin_unlock_irq(&phba->hbalock); 2812 /* count may include a LF at end of string */ 2813 if (buf[cnt-1] == '\n') 2814 cnt--; 2815 2816 if (!phba->soft_wwn_enable) 2817 return -EINVAL; 2818 2819 /* lock setting wwpn, wwnn down */ 2820 phba->soft_wwn_enable = 0; 2821 2822 rc = lpfc_wwn_set(buf, cnt, wwpn); 2823 if (rc) { 2824 /* not able to set wwpn, unlock it */ 2825 phba->soft_wwn_enable = 1; 2826 return rc; 2827 } 2828 2829 phba->cfg_soft_wwpn = wwn_to_u64(wwpn); 2830 fc_host_port_name(shost) = phba->cfg_soft_wwpn; 2831 if (phba->cfg_soft_wwnn) 2832 fc_host_node_name(shost) = phba->cfg_soft_wwnn; 2833 2834 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2835 "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); 2836 2837 stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); 2838 if (stat1) 2839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2840 "0463 lpfc_soft_wwpn attribute set failed to " 2841 "reinit adapter - %d\n", stat1); 2842 init_completion(&online_compl); 2843 rc = lpfc_workq_post_event(phba, &stat2, &online_compl, 2844 LPFC_EVT_ONLINE); 2845 if (rc == 0) 2846 return -ENOMEM; 2847 2848 wait_for_completion(&online_compl); 2849 if (stat2) 2850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2851 "0464 lpfc_soft_wwpn attribute set failed to " 2852 "reinit adapter - %d\n", stat2); 2853 return (stat1 || stat2) ? -EIO : count; 2854 } 2855 static DEVICE_ATTR_RW(lpfc_soft_wwpn); 2856 2857 /** 2858 * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter 2859 * @dev: class device that is converted into a Scsi_host. 2860 * @attr: device attribute, not used. 2861 * @buf: on return contains the wwnn in hexadecimal. 2862 * 2863 * Returns: size of formatted string. 2864 **/ 2865 static ssize_t 2866 lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 2867 char *buf) 2868 { 2869 struct Scsi_Host *shost = class_to_shost(dev); 2870 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2871 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2872 (unsigned long long)phba->cfg_soft_wwnn); 2873 } 2874 2875 /** 2876 * lpfc_soft_wwnn_store - sets the ww node name of the adapter 2877 * @cdev: class device that is converted into a Scsi_host. 2878 * @buf: contains the ww node name in hexadecimal. 2879 * @count: number of wwnn bytes in buf. 2880 * 2881 * Returns: 2882 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid 2883 * value of count on success 2884 **/ 2885 static ssize_t 2886 lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 2887 const char *buf, size_t count) 2888 { 2889 struct Scsi_Host *shost = class_to_shost(dev); 2890 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2891 unsigned int cnt = count; 2892 u8 wwnn[WWN_SZ]; 2893 int rc; 2894 2895 /* count may include a LF at end of string */ 2896 if (buf[cnt-1] == '\n') 2897 cnt--; 2898 2899 if (!phba->soft_wwn_enable) 2900 return -EINVAL; 2901 2902 rc = lpfc_wwn_set(buf, cnt, wwnn); 2903 if (rc) { 2904 /* Allow wwnn to be set many times, as long as the enable 2905 * is set. However, once the wwpn is set, everything locks. 2906 */ 2907 return rc; 2908 } 2909 2910 phba->cfg_soft_wwnn = wwn_to_u64(wwnn); 2911 2912 dev_printk(KERN_NOTICE, &phba->pcidev->dev, 2913 "lpfc%d: soft_wwnn set. Value will take effect upon " 2914 "setting of the soft_wwpn\n", phba->brd_no); 2915 2916 return count; 2917 } 2918 static DEVICE_ATTR_RW(lpfc_soft_wwnn); 2919 2920 /** 2921 * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for 2922 * Optimized Access Storage (OAS) operations. 2923 * @dev: class device that is converted into a Scsi_host. 2924 * @attr: device attribute, not used. 2925 * @buf: buffer for passing information. 2926 * 2927 * Returns: 2928 * value of count 2929 **/ 2930 static ssize_t 2931 lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, 2932 char *buf) 2933 { 2934 struct Scsi_Host *shost = class_to_shost(dev); 2935 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2936 2937 return scnprintf(buf, PAGE_SIZE, "0x%llx\n", 2938 wwn_to_u64(phba->cfg_oas_tgt_wwpn)); 2939 } 2940 2941 /** 2942 * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for 2943 * Optimized Access Storage (OAS) operations. 2944 * @dev: class device that is converted into a Scsi_host. 2945 * @attr: device attribute, not used. 2946 * @buf: buffer for passing information. 2947 * @count: Size of the data buffer. 2948 * 2949 * Returns: 2950 * -EINVAL count is invalid, invalid wwpn byte invalid 2951 * -EPERM oas is not supported by hba 2952 * value of count on success 2953 **/ 2954 static ssize_t 2955 lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, 2956 const char *buf, size_t count) 2957 { 2958 struct Scsi_Host *shost = class_to_shost(dev); 2959 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 2960 unsigned int cnt = count; 2961 uint8_t wwpn[WWN_SZ]; 2962 int rc; 2963 2964 if (!phba->cfg_fof) 2965 return -EPERM; 2966 2967 /* count may include a LF at end of string */ 2968 if (buf[cnt-1] == '\n') 2969 cnt--; 2970 2971 rc = lpfc_wwn_set(buf, cnt, wwpn); 2972 if (rc) 2973 return rc; 2974 2975 memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2976 memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); 2977 if (wwn_to_u64(wwpn) == 0) 2978 phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; 2979 else 2980 phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; 2981 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 2982 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 2983 return count; 2984 } 2985 static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, 2986 lpfc_oas_tgt_show, lpfc_oas_tgt_store); 2987 2988 /** 2989 * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for 2990 * Optimized Access Storage (OAS) operations. 2991 * @dev: class device that is converted into a Scsi_host. 2992 * @attr: device attribute, not used. 2993 * @buf: buffer for passing information. 2994 * 2995 * Returns: 2996 * value of count 2997 **/ 2998 static ssize_t 2999 lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, 3000 char *buf) 3001 { 3002 struct Scsi_Host *shost = class_to_shost(dev); 3003 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3004 3005 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); 3006 } 3007 3008 /** 3009 * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for 3010 * Optimized Access Storage (OAS) operations. 3011 * @dev: class device that is converted into a Scsi_host. 3012 * @attr: device attribute, not used. 3013 * @buf: buffer for passing information. 3014 * @count: Size of the data buffer. 3015 * 3016 * Returns: 3017 * -EINVAL count is invalid, invalid wwpn byte invalid 3018 * -EPERM oas is not supported by hba 3019 * value of count on success 3020 **/ 3021 static ssize_t 3022 lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, 3023 const char *buf, size_t count) 3024 { 3025 struct Scsi_Host *shost = class_to_shost(dev); 3026 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3027 unsigned int cnt = count; 3028 unsigned long val; 3029 int ret; 3030 3031 if (!phba->cfg_fof) 3032 return -EPERM; 3033 3034 /* count may include a LF at end of string */ 3035 if (buf[cnt-1] == '\n') 3036 cnt--; 3037 3038 ret = kstrtoul(buf, 0, &val); 3039 if (ret || (val > 0x7f)) 3040 return -EINVAL; 3041 3042 if (val) 3043 phba->cfg_oas_priority = (uint8_t)val; 3044 else 3045 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3046 return count; 3047 } 3048 static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, 3049 lpfc_oas_priority_show, lpfc_oas_priority_store); 3050 3051 /** 3052 * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled 3053 * for 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 on success 3060 **/ 3061 static ssize_t 3062 lpfc_oas_vpt_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, "0x%llx\n", 3069 wwn_to_u64(phba->cfg_oas_vpt_wwpn)); 3070 } 3071 3072 /** 3073 * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled 3074 * for Optimized Access Storage (OAS) operations. 3075 * @dev: class device that is converted into a Scsi_host. 3076 * @attr: device attribute, not used. 3077 * @buf: buffer for passing information. 3078 * @count: Size of the data buffer. 3079 * 3080 * Returns: 3081 * -EINVAL count is invalid, invalid wwpn byte invalid 3082 * -EPERM oas is not supported by hba 3083 * value of count on success 3084 **/ 3085 static ssize_t 3086 lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, 3087 const char *buf, size_t count) 3088 { 3089 struct Scsi_Host *shost = class_to_shost(dev); 3090 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3091 unsigned int cnt = count; 3092 uint8_t wwpn[WWN_SZ]; 3093 int rc; 3094 3095 if (!phba->cfg_fof) 3096 return -EPERM; 3097 3098 /* count may include a LF at end of string */ 3099 if (buf[cnt-1] == '\n') 3100 cnt--; 3101 3102 rc = lpfc_wwn_set(buf, cnt, wwpn); 3103 if (rc) 3104 return rc; 3105 3106 memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3107 memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); 3108 if (wwn_to_u64(wwpn) == 0) 3109 phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; 3110 else 3111 phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; 3112 phba->cfg_oas_flags &= ~OAS_LUN_VALID; 3113 if (phba->cfg_oas_priority == 0) 3114 phba->cfg_oas_priority = phba->cfg_XLanePriority; 3115 phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; 3116 return count; 3117 } 3118 static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, 3119 lpfc_oas_vpt_show, lpfc_oas_vpt_store); 3120 3121 /** 3122 * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) 3123 * of whether luns will be enabled or disabled 3124 * for Optimized Access Storage (OAS) operations. 3125 * @dev: class device that is converted into a Scsi_host. 3126 * @attr: device attribute, not used. 3127 * @buf: buffer for passing information. 3128 * 3129 * Returns: 3130 * size of formatted string. 3131 **/ 3132 static ssize_t 3133 lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, 3134 char *buf) 3135 { 3136 struct Scsi_Host *shost = class_to_shost(dev); 3137 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3138 3139 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); 3140 } 3141 3142 /** 3143 * lpfc_oas_lun_state_store - Store the state (enabled or disabled) 3144 * of whether luns will be enabled or disabled 3145 * for Optimized Access Storage (OAS) operations. 3146 * @dev: class device that is converted into a Scsi_host. 3147 * @attr: device attribute, not used. 3148 * @buf: buffer for passing information. 3149 * @count: Size of the data buffer. 3150 * 3151 * Returns: 3152 * -EINVAL count is invalid, invalid wwpn byte invalid 3153 * -EPERM oas is not supported by hba 3154 * value of count on success 3155 **/ 3156 static ssize_t 3157 lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, 3158 const char *buf, size_t count) 3159 { 3160 struct Scsi_Host *shost = class_to_shost(dev); 3161 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3162 int val = 0; 3163 3164 if (!phba->cfg_fof) 3165 return -EPERM; 3166 3167 if (!isdigit(buf[0])) 3168 return -EINVAL; 3169 3170 if (sscanf(buf, "%i", &val) != 1) 3171 return -EINVAL; 3172 3173 if ((val != 0) && (val != 1)) 3174 return -EINVAL; 3175 3176 phba->cfg_oas_lun_state = val; 3177 return strlen(buf); 3178 } 3179 static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, 3180 lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); 3181 3182 /** 3183 * lpfc_oas_lun_status_show - Return the status of the Optimized Access 3184 * Storage (OAS) lun returned by the 3185 * lpfc_oas_lun_show function. 3186 * @dev: class device that is converted into a Scsi_host. 3187 * @attr: device attribute, not used. 3188 * @buf: buffer for passing information. 3189 * 3190 * Returns: 3191 * size of formatted string. 3192 **/ 3193 static ssize_t 3194 lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, 3195 char *buf) 3196 { 3197 struct Scsi_Host *shost = class_to_shost(dev); 3198 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3199 3200 if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) 3201 return -EFAULT; 3202 3203 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); 3204 } 3205 static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, 3206 lpfc_oas_lun_status_show, NULL); 3207 3208 3209 /** 3210 * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage 3211 * (OAS) operations. 3212 * @phba: lpfc_hba pointer. 3213 * @ndlp: pointer to fcp target node. 3214 * @lun: the fc lun for setting oas state. 3215 * @oas_state: the oas state to be set to the lun. 3216 * 3217 * Returns: 3218 * SUCCESS : 0 3219 * -EPERM OAS is not enabled or not supported by this port. 3220 * 3221 */ 3222 static size_t 3223 lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3224 uint8_t tgt_wwpn[], uint64_t lun, 3225 uint32_t oas_state, uint8_t pri) 3226 { 3227 3228 int rc = 0; 3229 3230 if (!phba->cfg_fof) 3231 return -EPERM; 3232 3233 if (oas_state) { 3234 if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3235 (struct lpfc_name *)tgt_wwpn, 3236 lun, pri)) 3237 rc = -ENOMEM; 3238 } else { 3239 lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, 3240 (struct lpfc_name *)tgt_wwpn, lun, pri); 3241 } 3242 return rc; 3243 3244 } 3245 3246 /** 3247 * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized 3248 * Access Storage (OAS) operations. 3249 * @phba: lpfc_hba pointer. 3250 * @vpt_wwpn: wwpn of the vport associated with the returned lun 3251 * @tgt_wwpn: wwpn of the target associated with the returned lun 3252 * @lun_status: status of the lun returned lun 3253 * 3254 * Returns the first or next lun enabled for OAS operations for the vport/target 3255 * specified. If a lun is found, its vport wwpn, target wwpn and status is 3256 * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. 3257 * 3258 * Return: 3259 * lun that is OAS enabled for the vport/target 3260 * NOT_OAS_ENABLED_LUN when no oas enabled lun found. 3261 */ 3262 static uint64_t 3263 lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3264 uint8_t tgt_wwpn[], uint32_t *lun_status, 3265 uint32_t *lun_pri) 3266 { 3267 uint64_t found_lun; 3268 3269 if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) 3270 return NOT_OAS_ENABLED_LUN; 3271 if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) 3272 phba->sli4_hba.oas_next_vpt_wwpn, 3273 (struct lpfc_name *) 3274 phba->sli4_hba.oas_next_tgt_wwpn, 3275 &phba->sli4_hba.oas_next_lun, 3276 (struct lpfc_name *)vpt_wwpn, 3277 (struct lpfc_name *)tgt_wwpn, 3278 &found_lun, lun_status, lun_pri)) 3279 return found_lun; 3280 else 3281 return NOT_OAS_ENABLED_LUN; 3282 } 3283 3284 /** 3285 * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations 3286 * @phba: lpfc_hba pointer. 3287 * @vpt_wwpn: vport wwpn by reference. 3288 * @tgt_wwpn: target wwpn by reference. 3289 * @lun: the fc lun for setting oas state. 3290 * @oas_state: the oas state to be set to the oas_lun. 3291 * 3292 * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) 3293 * a lun for OAS operations. 3294 * 3295 * Return: 3296 * SUCCESS: 0 3297 * -ENOMEM: failed to enable an lun for OAS operations 3298 * -EPERM: OAS is not enabled 3299 */ 3300 static ssize_t 3301 lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], 3302 uint8_t tgt_wwpn[], uint64_t lun, 3303 uint32_t oas_state, uint8_t pri) 3304 { 3305 3306 int rc; 3307 3308 rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, 3309 oas_state, pri); 3310 return rc; 3311 } 3312 3313 /** 3314 * lpfc_oas_lun_show - Return oas enabled luns from a chosen target 3315 * @dev: class device that is converted into a Scsi_host. 3316 * @attr: device attribute, not used. 3317 * @buf: buffer for passing information. 3318 * 3319 * This routine returns a lun enabled for OAS each time the function 3320 * is called. 3321 * 3322 * Returns: 3323 * SUCCESS: size of formatted string. 3324 * -EFAULT: target or vport wwpn was not set properly. 3325 * -EPERM: oas is not enabled. 3326 **/ 3327 static ssize_t 3328 lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, 3329 char *buf) 3330 { 3331 struct Scsi_Host *shost = class_to_shost(dev); 3332 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3333 3334 uint64_t oas_lun; 3335 int len = 0; 3336 3337 if (!phba->cfg_fof) 3338 return -EPERM; 3339 3340 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3341 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) 3342 return -EFAULT; 3343 3344 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3345 if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) 3346 return -EFAULT; 3347 3348 oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, 3349 phba->cfg_oas_tgt_wwpn, 3350 &phba->cfg_oas_lun_status, 3351 &phba->cfg_oas_priority); 3352 if (oas_lun != NOT_OAS_ENABLED_LUN) 3353 phba->cfg_oas_flags |= OAS_LUN_VALID; 3354 3355 len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); 3356 3357 return len; 3358 } 3359 3360 /** 3361 * lpfc_oas_lun_store - Sets the OAS state for lun 3362 * @dev: class device that is converted into a Scsi_host. 3363 * @attr: device attribute, not used. 3364 * @buf: buffer for passing information. 3365 * 3366 * This function sets the OAS state for lun. Before this function is called, 3367 * the vport wwpn, target wwpn, and oas state need to be set. 3368 * 3369 * Returns: 3370 * SUCCESS: size of formatted string. 3371 * -EFAULT: target or vport wwpn was not set properly. 3372 * -EPERM: oas is not enabled. 3373 * size of formatted string. 3374 **/ 3375 static ssize_t 3376 lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, 3377 const char *buf, size_t count) 3378 { 3379 struct Scsi_Host *shost = class_to_shost(dev); 3380 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3381 uint64_t scsi_lun; 3382 uint32_t pri; 3383 ssize_t rc; 3384 3385 if (!phba->cfg_fof) 3386 return -EPERM; 3387 3388 if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) 3389 return -EFAULT; 3390 3391 if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) 3392 return -EFAULT; 3393 3394 if (!isdigit(buf[0])) 3395 return -EINVAL; 3396 3397 if (sscanf(buf, "0x%llx", &scsi_lun) != 1) 3398 return -EINVAL; 3399 3400 pri = phba->cfg_oas_priority; 3401 if (pri == 0) 3402 pri = phba->cfg_XLanePriority; 3403 3404 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3405 "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " 3406 "priority 0x%x with oas state %d\n", 3407 wwn_to_u64(phba->cfg_oas_vpt_wwpn), 3408 wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, 3409 pri, phba->cfg_oas_lun_state); 3410 3411 rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, 3412 phba->cfg_oas_tgt_wwpn, scsi_lun, 3413 phba->cfg_oas_lun_state, pri); 3414 if (rc) 3415 return rc; 3416 3417 return count; 3418 } 3419 static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, 3420 lpfc_oas_lun_show, lpfc_oas_lun_store); 3421 3422 int lpfc_enable_nvmet_cnt; 3423 unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 3424 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3425 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3426 module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); 3427 MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); 3428 3429 static int lpfc_poll = 0; 3430 module_param(lpfc_poll, int, S_IRUGO); 3431 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" 3432 " 0 - none," 3433 " 1 - poll with interrupts enabled" 3434 " 3 - poll and disable FCP ring interrupts"); 3435 3436 static DEVICE_ATTR_RW(lpfc_poll); 3437 3438 int lpfc_no_hba_reset_cnt; 3439 unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 3440 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; 3441 module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); 3442 MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); 3443 3444 LPFC_ATTR(sli_mode, 0, 0, 3, 3445 "SLI mode selector:" 3446 " 0 - auto (SLI-3 if supported)," 3447 " 2 - select SLI-2 even on SLI-3 capable HBAs," 3448 " 3 - select SLI-3"); 3449 3450 LPFC_ATTR_R(enable_npiv, 1, 0, 1, 3451 "Enable NPIV functionality"); 3452 3453 LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, 3454 "FCF Fast failover=1 Priority failover=2"); 3455 3456 /* 3457 # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures 3458 # 0x0 = disabled, XRI/OXID use not tracked. 3459 # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. 3460 # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. 3461 */ 3462 LPFC_ATTR_R(enable_rrq, 2, 0, 2, 3463 "Enable RRQ functionality"); 3464 3465 /* 3466 # lpfc_suppress_link_up: Bring link up at initialization 3467 # 0x0 = bring link up (issue MBX_INIT_LINK) 3468 # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) 3469 # 0x2 = never bring up link 3470 # Default value is 0. 3471 */ 3472 LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, 3473 LPFC_DELAY_INIT_LINK_INDEFINITELY, 3474 "Suppress Link Up at initialization"); 3475 3476 static ssize_t 3477 lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) 3478 { 3479 struct Scsi_Host *shost = class_to_shost(dev); 3480 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3481 3482 return scnprintf(buf, PAGE_SIZE, "%d\n", 3483 phba->sli4_hba.pc_sli4_params.pls); 3484 } 3485 static DEVICE_ATTR(pls, 0444, 3486 lpfc_pls_show, NULL); 3487 3488 static ssize_t 3489 lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) 3490 { 3491 struct Scsi_Host *shost = class_to_shost(dev); 3492 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 3493 3494 return scnprintf(buf, PAGE_SIZE, "%d\n", 3495 (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); 3496 } 3497 static DEVICE_ATTR(pt, 0444, 3498 lpfc_pt_show, NULL); 3499 3500 /* 3501 # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS 3502 # 1 - (1024) 3503 # 2 - (2048) 3504 # 3 - (3072) 3505 # 4 - (4096) 3506 # 5 - (5120) 3507 */ 3508 static ssize_t 3509 lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3510 { 3511 struct Scsi_Host *shost = class_to_shost(dev); 3512 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3513 3514 return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); 3515 } 3516 3517 static DEVICE_ATTR(iocb_hw, S_IRUGO, 3518 lpfc_iocb_hw_show, NULL); 3519 static ssize_t 3520 lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) 3521 { 3522 struct Scsi_Host *shost = class_to_shost(dev); 3523 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3524 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3525 3526 return scnprintf(buf, PAGE_SIZE, "%d\n", 3527 pring ? pring->txq_max : 0); 3528 } 3529 3530 static DEVICE_ATTR(txq_hw, S_IRUGO, 3531 lpfc_txq_hw_show, NULL); 3532 static ssize_t 3533 lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, 3534 char *buf) 3535 { 3536 struct Scsi_Host *shost = class_to_shost(dev); 3537 struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; 3538 struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); 3539 3540 return scnprintf(buf, PAGE_SIZE, "%d\n", 3541 pring ? pring->txcmplq_max : 0); 3542 } 3543 3544 static DEVICE_ATTR(txcmplq_hw, S_IRUGO, 3545 lpfc_txcmplq_hw_show, NULL); 3546 3547 /* 3548 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear 3549 # until the timer expires. Value range is [0,255]. Default value is 30. 3550 */ 3551 static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3552 static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; 3553 module_param(lpfc_nodev_tmo, int, 0); 3554 MODULE_PARM_DESC(lpfc_nodev_tmo, 3555 "Seconds driver will hold I/O waiting " 3556 "for a device to come back"); 3557 3558 /** 3559 * lpfc_nodev_tmo_show - Return the hba dev loss timeout value 3560 * @dev: class converted to a Scsi_host structure. 3561 * @attr: device attribute, not used. 3562 * @buf: on return contains the dev loss timeout in decimal. 3563 * 3564 * Returns: size of formatted string. 3565 **/ 3566 static ssize_t 3567 lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 3568 char *buf) 3569 { 3570 struct Scsi_Host *shost = class_to_shost(dev); 3571 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3572 3573 return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 3574 } 3575 3576 /** 3577 * lpfc_nodev_tmo_init - Set the hba nodev timeout value 3578 * @vport: lpfc vport structure pointer. 3579 * @val: contains the nodev timeout value. 3580 * 3581 * Description: 3582 * If the devloss tmo is already set then nodev tmo is set to devloss tmo, 3583 * a kernel error message is printed and zero is returned. 3584 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3585 * Otherwise nodev tmo is set to the default value. 3586 * 3587 * Returns: 3588 * zero if already set or if val is in range 3589 * -EINVAL val out of range 3590 **/ 3591 static int 3592 lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 3593 { 3594 if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { 3595 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 3596 if (val != LPFC_DEF_DEVLOSS_TMO) 3597 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3598 "0407 Ignoring lpfc_nodev_tmo module " 3599 "parameter because lpfc_devloss_tmo " 3600 "is set.\n"); 3601 return 0; 3602 } 3603 3604 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3605 vport->cfg_nodev_tmo = val; 3606 vport->cfg_devloss_tmo = val; 3607 return 0; 3608 } 3609 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3610 "0400 lpfc_nodev_tmo attribute cannot be set to" 3611 " %d, allowed range is [%d, %d]\n", 3612 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3613 vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; 3614 return -EINVAL; 3615 } 3616 3617 /** 3618 * lpfc_update_rport_devloss_tmo - Update dev loss tmo value 3619 * @vport: lpfc vport structure pointer. 3620 * 3621 * Description: 3622 * Update all the ndlp's dev loss tmo with the vport devloss tmo value. 3623 **/ 3624 static void 3625 lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 3626 { 3627 struct Scsi_Host *shost; 3628 struct lpfc_nodelist *ndlp; 3629 #if (IS_ENABLED(CONFIG_NVME_FC)) 3630 struct lpfc_nvme_rport *rport; 3631 struct nvme_fc_remote_port *remoteport = NULL; 3632 #endif 3633 3634 shost = lpfc_shost_from_vport(vport); 3635 spin_lock_irq(shost->host_lock); 3636 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 3637 if (!NLP_CHK_NODE_ACT(ndlp)) 3638 continue; 3639 if (ndlp->rport) 3640 ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; 3641 #if (IS_ENABLED(CONFIG_NVME_FC)) 3642 spin_lock(&vport->phba->hbalock); 3643 rport = lpfc_ndlp_get_nrport(ndlp); 3644 if (rport) 3645 remoteport = rport->remoteport; 3646 spin_unlock(&vport->phba->hbalock); 3647 if (rport && remoteport) 3648 nvme_fc_set_remoteport_devloss(remoteport, 3649 vport->cfg_devloss_tmo); 3650 #endif 3651 } 3652 spin_unlock_irq(shost->host_lock); 3653 } 3654 3655 /** 3656 * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values 3657 * @vport: lpfc vport structure pointer. 3658 * @val: contains the tmo value. 3659 * 3660 * Description: 3661 * If the devloss tmo is already set or the vport dev loss tmo has changed 3662 * then a kernel error message is printed and zero is returned. 3663 * Else if val is in range then nodev tmo and devloss tmo are set to val. 3664 * Otherwise nodev tmo is set to the default value. 3665 * 3666 * Returns: 3667 * zero if already set or if val is in range 3668 * -EINVAL val out of range 3669 **/ 3670 static int 3671 lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 3672 { 3673 if (vport->dev_loss_tmo_changed || 3674 (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { 3675 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3676 "0401 Ignoring change to lpfc_nodev_tmo " 3677 "because lpfc_devloss_tmo is set.\n"); 3678 return 0; 3679 } 3680 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3681 vport->cfg_nodev_tmo = val; 3682 vport->cfg_devloss_tmo = val; 3683 /* 3684 * For compat: set the fc_host dev loss so new rports 3685 * will get the value. 3686 */ 3687 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3688 lpfc_update_rport_devloss_tmo(vport); 3689 return 0; 3690 } 3691 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3692 "0403 lpfc_nodev_tmo attribute cannot be set to " 3693 "%d, allowed range is [%d, %d]\n", 3694 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3695 return -EINVAL; 3696 } 3697 3698 lpfc_vport_param_store(nodev_tmo) 3699 3700 static DEVICE_ATTR_RW(lpfc_nodev_tmo); 3701 3702 /* 3703 # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that 3704 # disappear until the timer expires. Value range is [0,255]. Default 3705 # value is 30. 3706 */ 3707 module_param(lpfc_devloss_tmo, int, S_IRUGO); 3708 MODULE_PARM_DESC(lpfc_devloss_tmo, 3709 "Seconds driver will hold I/O waiting " 3710 "for a device to come back"); 3711 lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 3712 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 3713 lpfc_vport_param_show(devloss_tmo) 3714 3715 /** 3716 * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit 3717 * @vport: lpfc vport structure pointer. 3718 * @val: contains the tmo value. 3719 * 3720 * Description: 3721 * If val is in a valid range then set the vport nodev tmo, 3722 * devloss tmo, also set the vport dev loss tmo changed flag. 3723 * Else a kernel error message is printed. 3724 * 3725 * Returns: 3726 * zero if val is in range 3727 * -EINVAL val out of range 3728 **/ 3729 static int 3730 lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 3731 { 3732 if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { 3733 vport->cfg_nodev_tmo = val; 3734 vport->cfg_devloss_tmo = val; 3735 vport->dev_loss_tmo_changed = 1; 3736 fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; 3737 lpfc_update_rport_devloss_tmo(vport); 3738 return 0; 3739 } 3740 3741 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3742 "0404 lpfc_devloss_tmo attribute cannot be set to " 3743 "%d, allowed range is [%d, %d]\n", 3744 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); 3745 return -EINVAL; 3746 } 3747 3748 lpfc_vport_param_store(devloss_tmo) 3749 static DEVICE_ATTR_RW(lpfc_devloss_tmo); 3750 3751 /* 3752 * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it 3753 * lpfc_suppress_rsp = 0 Disable 3754 * lpfc_suppress_rsp = 1 Enable (default) 3755 * 3756 */ 3757 LPFC_ATTR_R(suppress_rsp, 1, 0, 1, 3758 "Enable suppress rsp feature is firmware supports it"); 3759 3760 /* 3761 * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds 3762 * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs 3763 * lpfc_nvmet_mrq = 1 use a single RQ pair 3764 * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ 3765 * 3766 */ 3767 LPFC_ATTR_R(nvmet_mrq, 3768 LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, 3769 "Specify number of RQ pairs for processing NVMET cmds"); 3770 3771 /* 3772 * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post 3773 * to each NVMET RQ. Range 64 to 2048, default is 512. 3774 */ 3775 LPFC_ATTR_R(nvmet_mrq_post, 3776 LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, 3777 LPFC_NVMET_RQE_DEF_COUNT, 3778 "Specify number of RQ buffers to initially post"); 3779 3780 /* 3781 * lpfc_enable_fc4_type: Defines what FC4 types are supported. 3782 * Supported Values: 1 - register just FCP 3783 * 3 - register both FCP and NVME 3784 * Supported values are [1,3]. Default value is 3 3785 */ 3786 LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH, 3787 LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, 3788 "Enable FC4 Protocol support - FCP / NVME"); 3789 3790 /* 3791 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being 3792 # deluged with LOTS of information. 3793 # You can set a bit mask to record specific types of verbose messages: 3794 # See lpfc_logmsh.h for definitions. 3795 */ 3796 LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, 3797 "Verbose logging bit-mask"); 3798 3799 /* 3800 # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters 3801 # objects that have been registered with the nameserver after login. 3802 */ 3803 LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, 3804 "Deregister nameserver objects before LOGO"); 3805 3806 /* 3807 # lun_queue_depth: This parameter is used to limit the number of outstanding 3808 # commands per FCP LUN. 3809 */ 3810 LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, 3811 "Max number of FCP commands we can queue to a specific LUN"); 3812 3813 /* 3814 # tgt_queue_depth: This parameter is used to limit the number of outstanding 3815 # commands per target port. Value range is [10,65535]. Default value is 65535. 3816 */ 3817 static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; 3818 module_param(lpfc_tgt_queue_depth, uint, 0444); 3819 MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); 3820 lpfc_vport_param_show(tgt_queue_depth); 3821 lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, 3822 LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); 3823 3824 /** 3825 * lpfc_tgt_queue_depth_store: Sets an attribute value. 3826 * @phba: pointer the the adapter structure. 3827 * @val: integer attribute value. 3828 * 3829 * Description: Sets the parameter to the new value. 3830 * 3831 * Returns: 3832 * zero on success 3833 * -EINVAL if val is invalid 3834 */ 3835 static int 3836 lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) 3837 { 3838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3839 struct lpfc_nodelist *ndlp; 3840 3841 if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) 3842 return -EINVAL; 3843 3844 if (val == vport->cfg_tgt_queue_depth) 3845 return 0; 3846 3847 spin_lock_irq(shost->host_lock); 3848 vport->cfg_tgt_queue_depth = val; 3849 3850 /* Next loop thru nodelist and change cmd_qdepth */ 3851 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) 3852 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 3853 3854 spin_unlock_irq(shost->host_lock); 3855 return 0; 3856 } 3857 3858 lpfc_vport_param_store(tgt_queue_depth); 3859 static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); 3860 3861 /* 3862 # hba_queue_depth: This parameter is used to limit the number of outstanding 3863 # commands per lpfc HBA. Value range is [32,8192]. If this parameter 3864 # value is greater than the maximum number of exchanges supported by the HBA, 3865 # then maximum number of exchanges supported by the HBA is used to determine 3866 # the hba_queue_depth. 3867 */ 3868 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, 3869 "Max number of FCP commands we can queue to a lpfc HBA"); 3870 3871 /* 3872 # peer_port_login: This parameter allows/prevents logins 3873 # between peer ports hosted on the same physical port. 3874 # When this parameter is set 0 peer ports of same physical port 3875 # are not allowed to login to each other. 3876 # When this parameter is set 1 peer ports of same physical port 3877 # are allowed to login to each other. 3878 # Default value of this parameter is 0. 3879 */ 3880 LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, 3881 "Allow peer ports on the same physical port to login to each " 3882 "other."); 3883 3884 /* 3885 # restrict_login: This parameter allows/prevents logins 3886 # between Virtual Ports and remote initiators. 3887 # When this parameter is not set (0) Virtual Ports will accept PLOGIs from 3888 # other initiators and will attempt to PLOGI all remote ports. 3889 # When this parameter is set (1) Virtual Ports will reject PLOGIs from 3890 # remote ports and will not attempt to PLOGI to other initiators. 3891 # This parameter does not restrict to the physical port. 3892 # This parameter does not restrict logins to Fabric resident remote ports. 3893 # Default value of this parameter is 1. 3894 */ 3895 static int lpfc_restrict_login = 1; 3896 module_param(lpfc_restrict_login, int, S_IRUGO); 3897 MODULE_PARM_DESC(lpfc_restrict_login, 3898 "Restrict virtual ports login to remote initiators."); 3899 lpfc_vport_param_show(restrict_login); 3900 3901 /** 3902 * lpfc_restrict_login_init - Set the vport restrict login flag 3903 * @vport: lpfc vport structure pointer. 3904 * @val: contains the restrict login value. 3905 * 3906 * Description: 3907 * If val is not in a valid range then log a kernel error message and set 3908 * the vport restrict login to one. 3909 * If the port type is physical clear the restrict login flag and return. 3910 * Else set the restrict login flag to val. 3911 * 3912 * Returns: 3913 * zero if val is in range 3914 * -EINVAL val out of range 3915 **/ 3916 static int 3917 lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 3918 { 3919 if (val < 0 || val > 1) { 3920 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3921 "0422 lpfc_restrict_login attribute cannot " 3922 "be set to %d, allowed range is [0, 1]\n", 3923 val); 3924 vport->cfg_restrict_login = 1; 3925 return -EINVAL; 3926 } 3927 if (vport->port_type == LPFC_PHYSICAL_PORT) { 3928 vport->cfg_restrict_login = 0; 3929 return 0; 3930 } 3931 vport->cfg_restrict_login = val; 3932 return 0; 3933 } 3934 3935 /** 3936 * lpfc_restrict_login_set - Set the vport restrict login flag 3937 * @vport: lpfc vport structure pointer. 3938 * @val: contains the restrict login value. 3939 * 3940 * Description: 3941 * If val is not in a valid range then log a kernel error message and set 3942 * the vport restrict login to one. 3943 * If the port type is physical and the val is not zero log a kernel 3944 * error message, clear the restrict login flag and return zero. 3945 * Else set the restrict login flag to val. 3946 * 3947 * Returns: 3948 * zero if val is in range 3949 * -EINVAL val out of range 3950 **/ 3951 static int 3952 lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 3953 { 3954 if (val < 0 || val > 1) { 3955 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3956 "0425 lpfc_restrict_login attribute cannot " 3957 "be set to %d, allowed range is [0, 1]\n", 3958 val); 3959 vport->cfg_restrict_login = 1; 3960 return -EINVAL; 3961 } 3962 if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { 3963 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 3964 "0468 lpfc_restrict_login must be 0 for " 3965 "Physical ports.\n"); 3966 vport->cfg_restrict_login = 0; 3967 return 0; 3968 } 3969 vport->cfg_restrict_login = val; 3970 return 0; 3971 } 3972 lpfc_vport_param_store(restrict_login); 3973 static DEVICE_ATTR_RW(lpfc_restrict_login); 3974 3975 /* 3976 # Some disk devices have a "select ID" or "select Target" capability. 3977 # From a protocol standpoint "select ID" usually means select the 3978 # Fibre channel "ALPA". In the FC-AL Profile there is an "informative 3979 # annex" which contains a table that maps a "select ID" (a number 3980 # between 0 and 7F) to an ALPA. By default, for compatibility with 3981 # older drivers, the lpfc driver scans this table from low ALPA to high 3982 # ALPA. 3983 # 3984 # Turning on the scan-down variable (on = 1, off = 0) will 3985 # cause the lpfc driver to use an inverted table, effectively 3986 # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. 3987 # 3988 # (Note: This "select ID" functionality is a LOOP ONLY characteristic 3989 # and will not work across a fabric. Also this parameter will take 3990 # effect only in the case when ALPA map is not available.) 3991 */ 3992 LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, 3993 "Start scanning for devices from highest ALPA to lowest"); 3994 3995 /* 3996 # lpfc_topology: link topology for init link 3997 # 0x0 = attempt loop mode then point-to-point 3998 # 0x01 = internal loopback mode 3999 # 0x02 = attempt point-to-point mode only 4000 # 0x04 = attempt loop mode only 4001 # 0x06 = attempt point-to-point mode then loop 4002 # Set point-to-point mode if you want to run as an N_Port. 4003 # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 4004 # Default value is 0. 4005 */ 4006 LPFC_ATTR(topology, 0, 0, 6, 4007 "Select Fibre Channel topology"); 4008 4009 /** 4010 * lpfc_topology_set - Set the adapters topology field 4011 * @phba: lpfc_hba pointer. 4012 * @val: topology value. 4013 * 4014 * Description: 4015 * If val is in a valid range then set the adapter's topology field and 4016 * issue a lip; if the lip fails reset the topology to the old value. 4017 * 4018 * If the value is not in range log a kernel error message and return an error. 4019 * 4020 * Returns: 4021 * zero if val is in range and lip okay 4022 * non-zero return value from lpfc_issue_lip() 4023 * -EINVAL val out of range 4024 **/ 4025 static ssize_t 4026 lpfc_topology_store(struct device *dev, struct device_attribute *attr, 4027 const char *buf, size_t count) 4028 { 4029 struct Scsi_Host *shost = class_to_shost(dev); 4030 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4031 struct lpfc_hba *phba = vport->phba; 4032 int val = 0; 4033 int nolip = 0; 4034 const char *val_buf = buf; 4035 int err; 4036 uint32_t prev_val; 4037 4038 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4039 nolip = 1; 4040 val_buf = &buf[strlen("nolip ")]; 4041 } 4042 4043 if (!isdigit(val_buf[0])) 4044 return -EINVAL; 4045 if (sscanf(val_buf, "%i", &val) != 1) 4046 return -EINVAL; 4047 4048 if (val >= 0 && val <= 6) { 4049 prev_val = phba->cfg_topology; 4050 if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && 4051 val == 4) { 4052 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4053 "3113 Loop mode not supported at speed %d\n", 4054 val); 4055 return -EINVAL; 4056 } 4057 /* 4058 * The 'topology' is not a configurable parameter if : 4059 * - persistent topology enabled 4060 * - G7/G6 with no private loop support 4061 */ 4062 4063 if ((phba->hba_flag & HBA_PERSISTENT_TOPO || 4064 (!phba->sli4_hba.pc_sli4_params.pls && 4065 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC || 4066 phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) && 4067 val == 4) { 4068 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4069 "3114 Loop mode not supported\n"); 4070 return -EINVAL; 4071 } 4072 phba->cfg_topology = val; 4073 if (nolip) 4074 return strlen(buf); 4075 4076 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4077 "3054 lpfc_topology changed from %d to %d\n", 4078 prev_val, val); 4079 if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) 4080 phba->fc_topology_changed = 1; 4081 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4082 if (err) { 4083 phba->cfg_topology = prev_val; 4084 return -EINVAL; 4085 } else 4086 return strlen(buf); 4087 } 4088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4089 "%d:0467 lpfc_topology attribute cannot be set to %d, " 4090 "allowed range is [0, 6]\n", 4091 phba->brd_no, val); 4092 return -EINVAL; 4093 } 4094 4095 lpfc_param_show(topology) 4096 static DEVICE_ATTR_RW(lpfc_topology); 4097 4098 /** 4099 * lpfc_static_vport_show: Read callback function for 4100 * lpfc_static_vport sysfs file. 4101 * @dev: Pointer to class device object. 4102 * @attr: device attribute structure. 4103 * @buf: Data buffer. 4104 * 4105 * This function is the read call back function for 4106 * lpfc_static_vport sysfs file. The lpfc_static_vport 4107 * sysfs file report the mageability of the vport. 4108 **/ 4109 static ssize_t 4110 lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, 4111 char *buf) 4112 { 4113 struct Scsi_Host *shost = class_to_shost(dev); 4114 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4115 if (vport->vport_flag & STATIC_VPORT) 4116 sprintf(buf, "1\n"); 4117 else 4118 sprintf(buf, "0\n"); 4119 4120 return strlen(buf); 4121 } 4122 4123 /* 4124 * Sysfs attribute to control the statistical data collection. 4125 */ 4126 static DEVICE_ATTR_RO(lpfc_static_vport); 4127 4128 /** 4129 * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file 4130 * @dev: Pointer to class device. 4131 * @buf: Data buffer. 4132 * @count: Size of the data buffer. 4133 * 4134 * This function get called when a user write to the lpfc_stat_data_ctrl 4135 * sysfs file. This function parse the command written to the sysfs file 4136 * and take appropriate action. These commands are used for controlling 4137 * driver statistical data collection. 4138 * Following are the command this function handles. 4139 * 4140 * setbucket <bucket_type> <base> <step> 4141 * = Set the latency buckets. 4142 * destroybucket = destroy all the buckets. 4143 * start = start data collection 4144 * stop = stop data collection 4145 * reset = reset the collected data 4146 **/ 4147 static ssize_t 4148 lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, 4149 const char *buf, size_t count) 4150 { 4151 struct Scsi_Host *shost = class_to_shost(dev); 4152 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4153 struct lpfc_hba *phba = vport->phba; 4154 #define LPFC_MAX_DATA_CTRL_LEN 1024 4155 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; 4156 unsigned long i; 4157 char *str_ptr, *token; 4158 struct lpfc_vport **vports; 4159 struct Scsi_Host *v_shost; 4160 char *bucket_type_str, *base_str, *step_str; 4161 unsigned long base, step, bucket_type; 4162 4163 if (!strncmp(buf, "setbucket", strlen("setbucket"))) { 4164 if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) 4165 return -EINVAL; 4166 4167 strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN); 4168 str_ptr = &bucket_data[0]; 4169 /* Ignore this token - this is command token */ 4170 token = strsep(&str_ptr, "\t "); 4171 if (!token) 4172 return -EINVAL; 4173 4174 bucket_type_str = strsep(&str_ptr, "\t "); 4175 if (!bucket_type_str) 4176 return -EINVAL; 4177 4178 if (!strncmp(bucket_type_str, "linear", strlen("linear"))) 4179 bucket_type = LPFC_LINEAR_BUCKET; 4180 else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) 4181 bucket_type = LPFC_POWER2_BUCKET; 4182 else 4183 return -EINVAL; 4184 4185 base_str = strsep(&str_ptr, "\t "); 4186 if (!base_str) 4187 return -EINVAL; 4188 base = simple_strtoul(base_str, NULL, 0); 4189 4190 step_str = strsep(&str_ptr, "\t "); 4191 if (!step_str) 4192 return -EINVAL; 4193 step = simple_strtoul(step_str, NULL, 0); 4194 if (!step) 4195 return -EINVAL; 4196 4197 /* Block the data collection for every vport */ 4198 vports = lpfc_create_vport_work_array(phba); 4199 if (vports == NULL) 4200 return -ENOMEM; 4201 4202 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4203 v_shost = lpfc_shost_from_vport(vports[i]); 4204 spin_lock_irq(v_shost->host_lock); 4205 /* Block and reset data collection */ 4206 vports[i]->stat_data_blocked = 1; 4207 if (vports[i]->stat_data_enabled) 4208 lpfc_vport_reset_stat_data(vports[i]); 4209 spin_unlock_irq(v_shost->host_lock); 4210 } 4211 4212 /* Set the bucket attributes */ 4213 phba->bucket_type = bucket_type; 4214 phba->bucket_base = base; 4215 phba->bucket_step = step; 4216 4217 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4218 v_shost = lpfc_shost_from_vport(vports[i]); 4219 4220 /* Unblock data collection */ 4221 spin_lock_irq(v_shost->host_lock); 4222 vports[i]->stat_data_blocked = 0; 4223 spin_unlock_irq(v_shost->host_lock); 4224 } 4225 lpfc_destroy_vport_work_array(phba, vports); 4226 return strlen(buf); 4227 } 4228 4229 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { 4230 vports = lpfc_create_vport_work_array(phba); 4231 if (vports == NULL) 4232 return -ENOMEM; 4233 4234 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 4235 v_shost = lpfc_shost_from_vport(vports[i]); 4236 spin_lock_irq(shost->host_lock); 4237 vports[i]->stat_data_blocked = 1; 4238 lpfc_free_bucket(vport); 4239 vport->stat_data_enabled = 0; 4240 vports[i]->stat_data_blocked = 0; 4241 spin_unlock_irq(shost->host_lock); 4242 } 4243 lpfc_destroy_vport_work_array(phba, vports); 4244 phba->bucket_type = LPFC_NO_BUCKET; 4245 phba->bucket_base = 0; 4246 phba->bucket_step = 0; 4247 return strlen(buf); 4248 } 4249 4250 if (!strncmp(buf, "start", strlen("start"))) { 4251 /* If no buckets configured return error */ 4252 if (phba->bucket_type == LPFC_NO_BUCKET) 4253 return -EINVAL; 4254 spin_lock_irq(shost->host_lock); 4255 if (vport->stat_data_enabled) { 4256 spin_unlock_irq(shost->host_lock); 4257 return strlen(buf); 4258 } 4259 lpfc_alloc_bucket(vport); 4260 vport->stat_data_enabled = 1; 4261 spin_unlock_irq(shost->host_lock); 4262 return strlen(buf); 4263 } 4264 4265 if (!strncmp(buf, "stop", strlen("stop"))) { 4266 spin_lock_irq(shost->host_lock); 4267 if (vport->stat_data_enabled == 0) { 4268 spin_unlock_irq(shost->host_lock); 4269 return strlen(buf); 4270 } 4271 lpfc_free_bucket(vport); 4272 vport->stat_data_enabled = 0; 4273 spin_unlock_irq(shost->host_lock); 4274 return strlen(buf); 4275 } 4276 4277 if (!strncmp(buf, "reset", strlen("reset"))) { 4278 if ((phba->bucket_type == LPFC_NO_BUCKET) 4279 || !vport->stat_data_enabled) 4280 return strlen(buf); 4281 spin_lock_irq(shost->host_lock); 4282 vport->stat_data_blocked = 1; 4283 lpfc_vport_reset_stat_data(vport); 4284 vport->stat_data_blocked = 0; 4285 spin_unlock_irq(shost->host_lock); 4286 return strlen(buf); 4287 } 4288 return -EINVAL; 4289 } 4290 4291 4292 /** 4293 * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file 4294 * @dev: Pointer to class device object. 4295 * @buf: Data buffer. 4296 * 4297 * This function is the read call back function for 4298 * lpfc_stat_data_ctrl sysfs file. This function report the 4299 * current statistical data collection state. 4300 **/ 4301 static ssize_t 4302 lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, 4303 char *buf) 4304 { 4305 struct Scsi_Host *shost = class_to_shost(dev); 4306 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4307 struct lpfc_hba *phba = vport->phba; 4308 int index = 0; 4309 int i; 4310 char *bucket_type; 4311 unsigned long bucket_value; 4312 4313 switch (phba->bucket_type) { 4314 case LPFC_LINEAR_BUCKET: 4315 bucket_type = "linear"; 4316 break; 4317 case LPFC_POWER2_BUCKET: 4318 bucket_type = "power2"; 4319 break; 4320 default: 4321 bucket_type = "No Bucket"; 4322 break; 4323 } 4324 4325 sprintf(&buf[index], "Statistical Data enabled :%d, " 4326 "blocked :%d, Bucket type :%s, Bucket base :%d," 4327 " Bucket step :%d\nLatency Ranges :", 4328 vport->stat_data_enabled, vport->stat_data_blocked, 4329 bucket_type, phba->bucket_base, phba->bucket_step); 4330 index = strlen(buf); 4331 if (phba->bucket_type != LPFC_NO_BUCKET) { 4332 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4333 if (phba->bucket_type == LPFC_LINEAR_BUCKET) 4334 bucket_value = phba->bucket_base + 4335 phba->bucket_step * i; 4336 else 4337 bucket_value = phba->bucket_base + 4338 (1 << i) * phba->bucket_step; 4339 4340 if (index + 10 > PAGE_SIZE) 4341 break; 4342 sprintf(&buf[index], "%08ld ", bucket_value); 4343 index = strlen(buf); 4344 } 4345 } 4346 sprintf(&buf[index], "\n"); 4347 return strlen(buf); 4348 } 4349 4350 /* 4351 * Sysfs attribute to control the statistical data collection. 4352 */ 4353 static DEVICE_ATTR_RW(lpfc_stat_data_ctrl); 4354 4355 /* 4356 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. 4357 */ 4358 4359 /* 4360 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN 4361 * for each target. 4362 */ 4363 #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) 4364 #define MAX_STAT_DATA_SIZE_PER_TARGET \ 4365 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) 4366 4367 4368 /** 4369 * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute 4370 * @filp: sysfs file 4371 * @kobj: Pointer to the kernel object 4372 * @bin_attr: Attribute object 4373 * @buff: Buffer pointer 4374 * @off: File offset 4375 * @count: Buffer size 4376 * 4377 * This function is the read call back function for lpfc_drvr_stat_data 4378 * sysfs file. This function export the statistical data to user 4379 * applications. 4380 **/ 4381 static ssize_t 4382 sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, 4383 struct bin_attribute *bin_attr, 4384 char *buf, loff_t off, size_t count) 4385 { 4386 struct device *dev = container_of(kobj, struct device, 4387 kobj); 4388 struct Scsi_Host *shost = class_to_shost(dev); 4389 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4390 struct lpfc_hba *phba = vport->phba; 4391 int i = 0, index = 0; 4392 unsigned long nport_index; 4393 struct lpfc_nodelist *ndlp = NULL; 4394 nport_index = (unsigned long)off / 4395 MAX_STAT_DATA_SIZE_PER_TARGET; 4396 4397 if (!vport->stat_data_enabled || vport->stat_data_blocked 4398 || (phba->bucket_type == LPFC_NO_BUCKET)) 4399 return 0; 4400 4401 spin_lock_irq(shost->host_lock); 4402 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 4403 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) 4404 continue; 4405 4406 if (nport_index > 0) { 4407 nport_index--; 4408 continue; 4409 } 4410 4411 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) 4412 > count) 4413 break; 4414 4415 if (!ndlp->lat_data) 4416 continue; 4417 4418 /* Print the WWN */ 4419 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", 4420 ndlp->nlp_portname.u.wwn[0], 4421 ndlp->nlp_portname.u.wwn[1], 4422 ndlp->nlp_portname.u.wwn[2], 4423 ndlp->nlp_portname.u.wwn[3], 4424 ndlp->nlp_portname.u.wwn[4], 4425 ndlp->nlp_portname.u.wwn[5], 4426 ndlp->nlp_portname.u.wwn[6], 4427 ndlp->nlp_portname.u.wwn[7]); 4428 4429 index = strlen(buf); 4430 4431 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { 4432 sprintf(&buf[index], "%010u,", 4433 ndlp->lat_data[i].cmd_count); 4434 index = strlen(buf); 4435 } 4436 sprintf(&buf[index], "\n"); 4437 index = strlen(buf); 4438 } 4439 spin_unlock_irq(shost->host_lock); 4440 return index; 4441 } 4442 4443 static struct bin_attribute sysfs_drvr_stat_data_attr = { 4444 .attr = { 4445 .name = "lpfc_drvr_stat_data", 4446 .mode = S_IRUSR, 4447 }, 4448 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, 4449 .read = sysfs_drvr_stat_data_read, 4450 .write = NULL, 4451 }; 4452 4453 /* 4454 # lpfc_link_speed: Link speed selection for initializing the Fibre Channel 4455 # connection. 4456 # Value range is [0,16]. Default value is 0. 4457 */ 4458 /** 4459 * lpfc_link_speed_set - Set the adapters link speed 4460 * @phba: lpfc_hba pointer. 4461 * @val: link speed value. 4462 * 4463 * Description: 4464 * If val is in a valid range then set the adapter's link speed field and 4465 * issue a lip; if the lip fails reset the link speed to the old value. 4466 * 4467 * Notes: 4468 * If the value is not in range log a kernel error message and return an error. 4469 * 4470 * Returns: 4471 * zero if val is in range and lip okay. 4472 * non-zero return value from lpfc_issue_lip() 4473 * -EINVAL val out of range 4474 **/ 4475 static ssize_t 4476 lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, 4477 const char *buf, size_t count) 4478 { 4479 struct Scsi_Host *shost = class_to_shost(dev); 4480 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4481 struct lpfc_hba *phba = vport->phba; 4482 int val = LPFC_USER_LINK_SPEED_AUTO; 4483 int nolip = 0; 4484 const char *val_buf = buf; 4485 int err; 4486 uint32_t prev_val, if_type; 4487 4488 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 4489 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && 4490 phba->hba_flag & HBA_FORCED_LINK_SPEED) 4491 return -EPERM; 4492 4493 if (!strncmp(buf, "nolip ", strlen("nolip "))) { 4494 nolip = 1; 4495 val_buf = &buf[strlen("nolip ")]; 4496 } 4497 4498 if (!isdigit(val_buf[0])) 4499 return -EINVAL; 4500 if (sscanf(val_buf, "%i", &val) != 1) 4501 return -EINVAL; 4502 4503 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 4504 "3055 lpfc_link_speed changed from %d to %d %s\n", 4505 phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); 4506 4507 if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || 4508 ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || 4509 ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || 4510 ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || 4511 ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || 4512 ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || 4513 ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || 4514 ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { 4515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4516 "2879 lpfc_link_speed attribute cannot be set " 4517 "to %d. Speed is not supported by this port.\n", 4518 val); 4519 return -EINVAL; 4520 } 4521 if (val >= LPFC_USER_LINK_SPEED_16G && 4522 phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 4523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4524 "3112 lpfc_link_speed attribute cannot be set " 4525 "to %d. Speed is not supported in loop mode.\n", 4526 val); 4527 return -EINVAL; 4528 } 4529 4530 switch (val) { 4531 case LPFC_USER_LINK_SPEED_AUTO: 4532 case LPFC_USER_LINK_SPEED_1G: 4533 case LPFC_USER_LINK_SPEED_2G: 4534 case LPFC_USER_LINK_SPEED_4G: 4535 case LPFC_USER_LINK_SPEED_8G: 4536 case LPFC_USER_LINK_SPEED_16G: 4537 case LPFC_USER_LINK_SPEED_32G: 4538 case LPFC_USER_LINK_SPEED_64G: 4539 prev_val = phba->cfg_link_speed; 4540 phba->cfg_link_speed = val; 4541 if (nolip) 4542 return strlen(buf); 4543 4544 err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); 4545 if (err) { 4546 phba->cfg_link_speed = prev_val; 4547 return -EINVAL; 4548 } 4549 return strlen(buf); 4550 default: 4551 break; 4552 } 4553 4554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4555 "0469 lpfc_link_speed attribute cannot be set to %d, " 4556 "allowed values are [%s]\n", 4557 val, LPFC_LINK_SPEED_STRING); 4558 return -EINVAL; 4559 4560 } 4561 4562 static int lpfc_link_speed = 0; 4563 module_param(lpfc_link_speed, int, S_IRUGO); 4564 MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 4565 lpfc_param_show(link_speed) 4566 4567 /** 4568 * lpfc_link_speed_init - Set the adapters link speed 4569 * @phba: lpfc_hba pointer. 4570 * @val: link speed value. 4571 * 4572 * Description: 4573 * If val is in a valid range then set the adapter's link speed field. 4574 * 4575 * Notes: 4576 * If the value is not in range log a kernel error message, clear the link 4577 * speed and return an error. 4578 * 4579 * Returns: 4580 * zero if val saved. 4581 * -EINVAL val out of range 4582 **/ 4583 static int 4584 lpfc_link_speed_init(struct lpfc_hba *phba, int val) 4585 { 4586 if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { 4587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4588 "3111 lpfc_link_speed of %d cannot " 4589 "support loop mode, setting topology to default.\n", 4590 val); 4591 phba->cfg_topology = 0; 4592 } 4593 4594 switch (val) { 4595 case LPFC_USER_LINK_SPEED_AUTO: 4596 case LPFC_USER_LINK_SPEED_1G: 4597 case LPFC_USER_LINK_SPEED_2G: 4598 case LPFC_USER_LINK_SPEED_4G: 4599 case LPFC_USER_LINK_SPEED_8G: 4600 case LPFC_USER_LINK_SPEED_16G: 4601 case LPFC_USER_LINK_SPEED_32G: 4602 case LPFC_USER_LINK_SPEED_64G: 4603 phba->cfg_link_speed = val; 4604 return 0; 4605 default: 4606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4607 "0405 lpfc_link_speed attribute cannot " 4608 "be set to %d, allowed values are " 4609 "["LPFC_LINK_SPEED_STRING"]\n", val); 4610 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 4611 return -EINVAL; 4612 } 4613 } 4614 4615 static DEVICE_ATTR_RW(lpfc_link_speed); 4616 4617 /* 4618 # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) 4619 # 0 = aer disabled or not supported 4620 # 1 = aer supported and enabled (default) 4621 # Value range is [0,1]. Default value is 1. 4622 */ 4623 LPFC_ATTR(aer_support, 1, 0, 1, 4624 "Enable PCIe device AER support"); 4625 lpfc_param_show(aer_support) 4626 4627 /** 4628 * lpfc_aer_support_store - Set the adapter for aer support 4629 * 4630 * @dev: class device that is converted into a Scsi_host. 4631 * @attr: device attribute, not used. 4632 * @buf: containing enable or disable aer flag. 4633 * @count: unused variable. 4634 * 4635 * Description: 4636 * If the val is 1 and currently the device's AER capability was not 4637 * enabled, invoke the kernel's enable AER helper routine, trying to 4638 * enable the device's AER capability. If the helper routine enabling 4639 * AER returns success, update the device's cfg_aer_support flag to 4640 * indicate AER is supported by the device; otherwise, if the device 4641 * AER capability is already enabled to support AER, then do nothing. 4642 * 4643 * If the val is 0 and currently the device's AER support was enabled, 4644 * invoke the kernel's disable AER helper routine. After that, update 4645 * the device's cfg_aer_support flag to indicate AER is not supported 4646 * by the device; otherwise, if the device AER capability is already 4647 * disabled from supporting AER, then do nothing. 4648 * 4649 * Returns: 4650 * length of the buf on success if val is in range the intended mode 4651 * is supported. 4652 * -EINVAL if val out of range or intended mode is not supported. 4653 **/ 4654 static ssize_t 4655 lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, 4656 const char *buf, size_t count) 4657 { 4658 struct Scsi_Host *shost = class_to_shost(dev); 4659 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4660 struct lpfc_hba *phba = vport->phba; 4661 int val = 0, rc = -EINVAL; 4662 4663 if (!isdigit(buf[0])) 4664 return -EINVAL; 4665 if (sscanf(buf, "%i", &val) != 1) 4666 return -EINVAL; 4667 4668 switch (val) { 4669 case 0: 4670 if (phba->hba_flag & HBA_AER_ENABLED) { 4671 rc = pci_disable_pcie_error_reporting(phba->pcidev); 4672 if (!rc) { 4673 spin_lock_irq(&phba->hbalock); 4674 phba->hba_flag &= ~HBA_AER_ENABLED; 4675 spin_unlock_irq(&phba->hbalock); 4676 phba->cfg_aer_support = 0; 4677 rc = strlen(buf); 4678 } else 4679 rc = -EPERM; 4680 } else { 4681 phba->cfg_aer_support = 0; 4682 rc = strlen(buf); 4683 } 4684 break; 4685 case 1: 4686 if (!(phba->hba_flag & HBA_AER_ENABLED)) { 4687 rc = pci_enable_pcie_error_reporting(phba->pcidev); 4688 if (!rc) { 4689 spin_lock_irq(&phba->hbalock); 4690 phba->hba_flag |= HBA_AER_ENABLED; 4691 spin_unlock_irq(&phba->hbalock); 4692 phba->cfg_aer_support = 1; 4693 rc = strlen(buf); 4694 } else 4695 rc = -EPERM; 4696 } else { 4697 phba->cfg_aer_support = 1; 4698 rc = strlen(buf); 4699 } 4700 break; 4701 default: 4702 rc = -EINVAL; 4703 break; 4704 } 4705 return rc; 4706 } 4707 4708 static DEVICE_ATTR_RW(lpfc_aer_support); 4709 4710 /** 4711 * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device 4712 * @dev: class device that is converted into a Scsi_host. 4713 * @attr: device attribute, not used. 4714 * @buf: containing flag 1 for aer cleanup state. 4715 * @count: unused variable. 4716 * 4717 * Description: 4718 * If the @buf contains 1 and the device currently has the AER support 4719 * enabled, then invokes the kernel AER helper routine 4720 * pci_aer_clear_nonfatal_status() to clean up the uncorrectable 4721 * error status register. 4722 * 4723 * Notes: 4724 * 4725 * Returns: 4726 * -EINVAL if the buf does not contain the 1 or the device is not currently 4727 * enabled with the AER support. 4728 **/ 4729 static ssize_t 4730 lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, 4731 const char *buf, size_t count) 4732 { 4733 struct Scsi_Host *shost = class_to_shost(dev); 4734 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4735 struct lpfc_hba *phba = vport->phba; 4736 int val, rc = -1; 4737 4738 if (!isdigit(buf[0])) 4739 return -EINVAL; 4740 if (sscanf(buf, "%i", &val) != 1) 4741 return -EINVAL; 4742 if (val != 1) 4743 return -EINVAL; 4744 4745 if (phba->hba_flag & HBA_AER_ENABLED) 4746 rc = pci_aer_clear_nonfatal_status(phba->pcidev); 4747 4748 if (rc == 0) 4749 return strlen(buf); 4750 else 4751 return -EPERM; 4752 } 4753 4754 static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, 4755 lpfc_aer_cleanup_state); 4756 4757 /** 4758 * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions 4759 * 4760 * @dev: class device that is converted into a Scsi_host. 4761 * @attr: device attribute, not used. 4762 * @buf: containing the string the number of vfs to be enabled. 4763 * @count: unused variable. 4764 * 4765 * Description: 4766 * When this api is called either through user sysfs, the driver shall 4767 * try to enable or disable SR-IOV virtual functions according to the 4768 * following: 4769 * 4770 * If zero virtual function has been enabled to the physical function, 4771 * the driver shall invoke the pci enable virtual function api trying 4772 * to enable the virtual functions. If the nr_vfn provided is greater 4773 * than the maximum supported, the maximum virtual function number will 4774 * be used for invoking the api; otherwise, the nr_vfn provided shall 4775 * be used for invoking the api. If the api call returned success, the 4776 * actual number of virtual functions enabled will be set to the driver 4777 * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver 4778 * cfg_sriov_nr_virtfn remains zero. 4779 * 4780 * If none-zero virtual functions have already been enabled to the 4781 * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, 4782 * -EINVAL will be returned and the driver does nothing; 4783 * 4784 * If the nr_vfn provided is zero and none-zero virtual functions have 4785 * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the 4786 * disabling virtual function api shall be invoded to disable all the 4787 * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to 4788 * zero. Otherwise, if zero virtual function has been enabled, do 4789 * nothing. 4790 * 4791 * Returns: 4792 * length of the buf on success if val is in range the intended mode 4793 * is supported. 4794 * -EINVAL if val out of range or intended mode is not supported. 4795 **/ 4796 static ssize_t 4797 lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, 4798 const char *buf, size_t count) 4799 { 4800 struct Scsi_Host *shost = class_to_shost(dev); 4801 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4802 struct lpfc_hba *phba = vport->phba; 4803 struct pci_dev *pdev = phba->pcidev; 4804 int val = 0, rc = -EINVAL; 4805 4806 /* Sanity check on user data */ 4807 if (!isdigit(buf[0])) 4808 return -EINVAL; 4809 if (sscanf(buf, "%i", &val) != 1) 4810 return -EINVAL; 4811 if (val < 0) 4812 return -EINVAL; 4813 4814 /* Request disabling virtual functions */ 4815 if (val == 0) { 4816 if (phba->cfg_sriov_nr_virtfn > 0) { 4817 pci_disable_sriov(pdev); 4818 phba->cfg_sriov_nr_virtfn = 0; 4819 } 4820 return strlen(buf); 4821 } 4822 4823 /* Request enabling virtual functions */ 4824 if (phba->cfg_sriov_nr_virtfn > 0) { 4825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4826 "3018 There are %d virtual functions " 4827 "enabled on physical function.\n", 4828 phba->cfg_sriov_nr_virtfn); 4829 return -EEXIST; 4830 } 4831 4832 if (val <= LPFC_MAX_VFN_PER_PFN) 4833 phba->cfg_sriov_nr_virtfn = val; 4834 else { 4835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4836 "3019 Enabling %d virtual functions is not " 4837 "allowed.\n", val); 4838 return -EINVAL; 4839 } 4840 4841 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); 4842 if (rc) { 4843 phba->cfg_sriov_nr_virtfn = 0; 4844 rc = -EPERM; 4845 } else 4846 rc = strlen(buf); 4847 4848 return rc; 4849 } 4850 4851 LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, 4852 "Enable PCIe device SR-IOV virtual fn"); 4853 4854 lpfc_param_show(sriov_nr_virtfn) 4855 static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); 4856 4857 /** 4858 * lpfc_request_firmware_store - Request for Linux generic firmware upgrade 4859 * 4860 * @dev: class device that is converted into a Scsi_host. 4861 * @attr: device attribute, not used. 4862 * @buf: containing the string the number of vfs to be enabled. 4863 * @count: unused variable. 4864 * 4865 * Description: 4866 * 4867 * Returns: 4868 * length of the buf on success if val is in range the intended mode 4869 * is supported. 4870 * -EINVAL if val out of range or intended mode is not supported. 4871 **/ 4872 static ssize_t 4873 lpfc_request_firmware_upgrade_store(struct device *dev, 4874 struct device_attribute *attr, 4875 const char *buf, size_t count) 4876 { 4877 struct Scsi_Host *shost = class_to_shost(dev); 4878 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4879 struct lpfc_hba *phba = vport->phba; 4880 int val = 0, rc = -EINVAL; 4881 4882 /* Sanity check on user data */ 4883 if (!isdigit(buf[0])) 4884 return -EINVAL; 4885 if (sscanf(buf, "%i", &val) != 1) 4886 return -EINVAL; 4887 if (val != 1) 4888 return -EINVAL; 4889 4890 rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); 4891 if (rc) 4892 rc = -EPERM; 4893 else 4894 rc = strlen(buf); 4895 return rc; 4896 } 4897 4898 static int lpfc_req_fw_upgrade; 4899 module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); 4900 MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); 4901 lpfc_param_show(request_firmware_upgrade) 4902 4903 /** 4904 * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade 4905 * @phba: lpfc_hba pointer. 4906 * @val: 0 or 1. 4907 * 4908 * Description: 4909 * Set the initial Linux generic firmware upgrade enable or disable flag. 4910 * 4911 * Returns: 4912 * zero if val saved. 4913 * -EINVAL val out of range 4914 **/ 4915 static int 4916 lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) 4917 { 4918 if (val >= 0 && val <= 1) { 4919 phba->cfg_request_firmware_upgrade = val; 4920 return 0; 4921 } 4922 return -EINVAL; 4923 } 4924 static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, 4925 lpfc_request_firmware_upgrade_show, 4926 lpfc_request_firmware_upgrade_store); 4927 4928 /** 4929 * lpfc_force_rscn_store 4930 * 4931 * @dev: class device that is converted into a Scsi_host. 4932 * @attr: device attribute, not used. 4933 * @buf: unused string 4934 * @count: unused variable. 4935 * 4936 * Description: 4937 * Force the switch to send a RSCN to all other NPorts in our zone 4938 * If we are direct connect pt2pt, build the RSCN command ourself 4939 * and send to the other NPort. Not supported for private loop. 4940 * 4941 * Returns: 4942 * 0 - on success 4943 * -EIO - if command is not sent 4944 **/ 4945 static ssize_t 4946 lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, 4947 const char *buf, size_t count) 4948 { 4949 struct Scsi_Host *shost = class_to_shost(dev); 4950 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4951 int i; 4952 4953 i = lpfc_issue_els_rscn(vport, 0); 4954 if (i) 4955 return -EIO; 4956 return strlen(buf); 4957 } 4958 4959 /* 4960 * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts 4961 * connected to the HBA. 4962 * 4963 * Value range is any ascii value 4964 */ 4965 static int lpfc_force_rscn; 4966 module_param(lpfc_force_rscn, int, 0644); 4967 MODULE_PARM_DESC(lpfc_force_rscn, 4968 "Force an RSCN to be sent to all remote NPorts"); 4969 lpfc_param_show(force_rscn) 4970 4971 /** 4972 * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts 4973 * @phba: lpfc_hba pointer. 4974 * @val: unused value. 4975 * 4976 * Returns: 4977 * zero if val saved. 4978 **/ 4979 static int 4980 lpfc_force_rscn_init(struct lpfc_hba *phba, int val) 4981 { 4982 return 0; 4983 } 4984 static DEVICE_ATTR_RW(lpfc_force_rscn); 4985 4986 /** 4987 * lpfc_fcp_imax_store 4988 * 4989 * @dev: class device that is converted into a Scsi_host. 4990 * @attr: device attribute, not used. 4991 * @buf: string with the number of fast-path FCP interrupts per second. 4992 * @count: unused variable. 4993 * 4994 * Description: 4995 * If val is in a valid range [636,651042], then set the adapter's 4996 * maximum number of fast-path FCP interrupts per second. 4997 * 4998 * Returns: 4999 * length of the buf on success if val is in range the intended mode 5000 * is supported. 5001 * -EINVAL if val out of range or intended mode is not supported. 5002 **/ 5003 static ssize_t 5004 lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, 5005 const char *buf, size_t count) 5006 { 5007 struct Scsi_Host *shost = class_to_shost(dev); 5008 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5009 struct lpfc_hba *phba = vport->phba; 5010 struct lpfc_eq_intr_info *eqi; 5011 uint32_t usdelay; 5012 int val = 0, i; 5013 5014 /* fcp_imax is only valid for SLI4 */ 5015 if (phba->sli_rev != LPFC_SLI_REV4) 5016 return -EINVAL; 5017 5018 /* Sanity check on user data */ 5019 if (!isdigit(buf[0])) 5020 return -EINVAL; 5021 if (sscanf(buf, "%i", &val) != 1) 5022 return -EINVAL; 5023 5024 /* 5025 * Value range for the HBA is [5000,5000000] 5026 * The value for each EQ depends on how many EQs are configured. 5027 * Allow value == 0 5028 */ 5029 if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) 5030 return -EINVAL; 5031 5032 phba->cfg_auto_imax = (val) ? 0 : 1; 5033 if (phba->cfg_fcp_imax && !val) { 5034 queue_delayed_work(phba->wq, &phba->eq_delay_work, 5035 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); 5036 5037 for_each_present_cpu(i) { 5038 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); 5039 eqi->icnt = 0; 5040 } 5041 } 5042 5043 phba->cfg_fcp_imax = (uint32_t)val; 5044 5045 if (phba->cfg_fcp_imax) 5046 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; 5047 else 5048 usdelay = 0; 5049 5050 for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) 5051 lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, 5052 usdelay); 5053 5054 return strlen(buf); 5055 } 5056 5057 /* 5058 # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second 5059 # for the HBA. 5060 # 5061 # Value range is [5,000 to 5,000,000]. Default value is 50,000. 5062 */ 5063 static int lpfc_fcp_imax = LPFC_DEF_IMAX; 5064 module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); 5065 MODULE_PARM_DESC(lpfc_fcp_imax, 5066 "Set the maximum number of FCP interrupts per second per HBA"); 5067 lpfc_param_show(fcp_imax) 5068 5069 /** 5070 * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable 5071 * @phba: lpfc_hba pointer. 5072 * @val: link speed value. 5073 * 5074 * Description: 5075 * If val is in a valid range [636,651042], then initialize the adapter's 5076 * maximum number of fast-path FCP interrupts per second. 5077 * 5078 * Returns: 5079 * zero if val saved. 5080 * -EINVAL val out of range 5081 **/ 5082 static int 5083 lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) 5084 { 5085 if (phba->sli_rev != LPFC_SLI_REV4) { 5086 phba->cfg_fcp_imax = 0; 5087 return 0; 5088 } 5089 5090 if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || 5091 (val == 0)) { 5092 phba->cfg_fcp_imax = val; 5093 return 0; 5094 } 5095 5096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5097 "3016 lpfc_fcp_imax: %d out of range, using default\n", 5098 val); 5099 phba->cfg_fcp_imax = LPFC_DEF_IMAX; 5100 5101 return 0; 5102 } 5103 5104 static DEVICE_ATTR_RW(lpfc_fcp_imax); 5105 5106 /** 5107 * lpfc_cq_max_proc_limit_store 5108 * 5109 * @dev: class device that is converted into a Scsi_host. 5110 * @attr: device attribute, not used. 5111 * @buf: string with the cq max processing limit of cqes 5112 * @count: unused variable. 5113 * 5114 * Description: 5115 * If val is in a valid range, then set value on each cq 5116 * 5117 * Returns: 5118 * The length of the buf: if successful 5119 * -ERANGE: if val is not in the valid range 5120 * -EINVAL: if bad value format or intended mode is not supported. 5121 **/ 5122 static ssize_t 5123 lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, 5124 const char *buf, size_t count) 5125 { 5126 struct Scsi_Host *shost = class_to_shost(dev); 5127 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5128 struct lpfc_hba *phba = vport->phba; 5129 struct lpfc_queue *eq, *cq; 5130 unsigned long val; 5131 int i; 5132 5133 /* cq_max_proc_limit is only valid for SLI4 */ 5134 if (phba->sli_rev != LPFC_SLI_REV4) 5135 return -EINVAL; 5136 5137 /* Sanity check on user data */ 5138 if (!isdigit(buf[0])) 5139 return -EINVAL; 5140 if (kstrtoul(buf, 0, &val)) 5141 return -EINVAL; 5142 5143 if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) 5144 return -ERANGE; 5145 5146 phba->cfg_cq_max_proc_limit = (uint32_t)val; 5147 5148 /* set the values on the cq's */ 5149 for (i = 0; i < phba->cfg_irq_chann; i++) { 5150 /* Get the EQ corresponding to the IRQ vector */ 5151 eq = phba->sli4_hba.hba_eq_hdl[i].eq; 5152 if (!eq) 5153 continue; 5154 5155 list_for_each_entry(cq, &eq->child_list, list) 5156 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, 5157 cq->entry_count); 5158 } 5159 5160 return strlen(buf); 5161 } 5162 5163 /* 5164 * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an 5165 * itteration of CQ processing. 5166 */ 5167 static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5168 module_param(lpfc_cq_max_proc_limit, int, 0644); 5169 MODULE_PARM_DESC(lpfc_cq_max_proc_limit, 5170 "Set the maximum number CQEs processed in an iteration of " 5171 "CQ processing"); 5172 lpfc_param_show(cq_max_proc_limit) 5173 5174 /* 5175 * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a 5176 * single handler call which should request a polled completion rather 5177 * than re-enabling interrupts. 5178 */ 5179 LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, 5180 LPFC_CQ_MIN_THRESHOLD_TO_POLL, 5181 LPFC_CQ_MAX_THRESHOLD_TO_POLL, 5182 "CQE Processing Threshold to enable Polling"); 5183 5184 /** 5185 * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit 5186 * @phba: lpfc_hba pointer. 5187 * @val: entry limit 5188 * 5189 * Description: 5190 * If val is in a valid range, then initialize the adapter's maximum 5191 * value. 5192 * 5193 * Returns: 5194 * Always returns 0 for success, even if value not always set to 5195 * requested value. If value out of range or not supported, will fall 5196 * back to default. 5197 **/ 5198 static int 5199 lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) 5200 { 5201 phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; 5202 5203 if (phba->sli_rev != LPFC_SLI_REV4) 5204 return 0; 5205 5206 if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { 5207 phba->cfg_cq_max_proc_limit = val; 5208 return 0; 5209 } 5210 5211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5212 "0371 "LPFC_DRIVER_NAME"_cq_max_proc_limit: " 5213 "%d out of range, using default\n", 5214 phba->cfg_cq_max_proc_limit); 5215 5216 return 0; 5217 } 5218 5219 static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); 5220 5221 /** 5222 * lpfc_state_show - Display current driver CPU affinity 5223 * @dev: class converted to a Scsi_host structure. 5224 * @attr: device attribute, not used. 5225 * @buf: on return contains text describing the state of the link. 5226 * 5227 * Returns: size of formatted string. 5228 **/ 5229 static ssize_t 5230 lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, 5231 char *buf) 5232 { 5233 struct Scsi_Host *shost = class_to_shost(dev); 5234 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5235 struct lpfc_hba *phba = vport->phba; 5236 struct lpfc_vector_map_info *cpup; 5237 int len = 0; 5238 5239 if ((phba->sli_rev != LPFC_SLI_REV4) || 5240 (phba->intr_type != MSIX)) 5241 return len; 5242 5243 switch (phba->cfg_fcp_cpu_map) { 5244 case 0: 5245 len += scnprintf(buf + len, PAGE_SIZE-len, 5246 "fcp_cpu_map: No mapping (%d)\n", 5247 phba->cfg_fcp_cpu_map); 5248 return len; 5249 case 1: 5250 len += scnprintf(buf + len, PAGE_SIZE-len, 5251 "fcp_cpu_map: HBA centric mapping (%d): " 5252 "%d of %d CPUs online from %d possible CPUs\n", 5253 phba->cfg_fcp_cpu_map, num_online_cpus(), 5254 num_present_cpus(), 5255 phba->sli4_hba.num_possible_cpu); 5256 break; 5257 } 5258 5259 while (phba->sli4_hba.curr_disp_cpu < 5260 phba->sli4_hba.num_possible_cpu) { 5261 cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; 5262 5263 if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) 5264 len += scnprintf(buf + len, PAGE_SIZE - len, 5265 "CPU %02d not present\n", 5266 phba->sli4_hba.curr_disp_cpu); 5267 else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { 5268 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5269 len += scnprintf( 5270 buf + len, PAGE_SIZE - len, 5271 "CPU %02d hdwq None " 5272 "physid %d coreid %d ht %d ua %d\n", 5273 phba->sli4_hba.curr_disp_cpu, 5274 cpup->phys_id, cpup->core_id, 5275 (cpup->flag & LPFC_CPU_MAP_HYPER), 5276 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5277 else 5278 len += scnprintf( 5279 buf + len, PAGE_SIZE - len, 5280 "CPU %02d EQ None hdwq %04d " 5281 "physid %d coreid %d ht %d ua %d\n", 5282 phba->sli4_hba.curr_disp_cpu, 5283 cpup->hdwq, cpup->phys_id, 5284 cpup->core_id, 5285 (cpup->flag & LPFC_CPU_MAP_HYPER), 5286 (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); 5287 } else { 5288 if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) 5289 len += scnprintf( 5290 buf + len, PAGE_SIZE - len, 5291 "CPU %02d hdwq None " 5292 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5293 phba->sli4_hba.curr_disp_cpu, 5294 cpup->phys_id, 5295 cpup->core_id, 5296 (cpup->flag & LPFC_CPU_MAP_HYPER), 5297 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5298 lpfc_get_irq(cpup->eq)); 5299 else 5300 len += scnprintf( 5301 buf + len, PAGE_SIZE - len, 5302 "CPU %02d EQ %04d hdwq %04d " 5303 "physid %d coreid %d ht %d ua %d IRQ %d\n", 5304 phba->sli4_hba.curr_disp_cpu, 5305 cpup->eq, cpup->hdwq, cpup->phys_id, 5306 cpup->core_id, 5307 (cpup->flag & LPFC_CPU_MAP_HYPER), 5308 (cpup->flag & LPFC_CPU_MAP_UNASSIGN), 5309 lpfc_get_irq(cpup->eq)); 5310 } 5311 5312 phba->sli4_hba.curr_disp_cpu++; 5313 5314 /* display max number of CPUs keeping some margin */ 5315 if (phba->sli4_hba.curr_disp_cpu < 5316 phba->sli4_hba.num_possible_cpu && 5317 (len >= (PAGE_SIZE - 64))) { 5318 len += scnprintf(buf + len, 5319 PAGE_SIZE - len, "more...\n"); 5320 break; 5321 } 5322 } 5323 5324 if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) 5325 phba->sli4_hba.curr_disp_cpu = 0; 5326 5327 return len; 5328 } 5329 5330 /** 5331 * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors 5332 * @dev: class device that is converted into a Scsi_host. 5333 * @attr: device attribute, not used. 5334 * @buf: one or more lpfc_polling_flags values. 5335 * @count: not used. 5336 * 5337 * Returns: 5338 * -EINVAL - Not implemented yet. 5339 **/ 5340 static ssize_t 5341 lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, 5342 const char *buf, size_t count) 5343 { 5344 int status = -EINVAL; 5345 return status; 5346 } 5347 5348 /* 5349 # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors 5350 # for the HBA. 5351 # 5352 # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). 5353 # 0 - Do not affinitze IRQ vectors 5354 # 1 - Affintize HBA vectors with respect to each HBA 5355 # (start with CPU0 for each HBA) 5356 # This also defines how Hardware Queues are mapped to specific CPUs. 5357 */ 5358 static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5359 module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); 5360 MODULE_PARM_DESC(lpfc_fcp_cpu_map, 5361 "Defines how to map CPUs to IRQ vectors per HBA"); 5362 5363 /** 5364 * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable 5365 * @phba: lpfc_hba pointer. 5366 * @val: link speed value. 5367 * 5368 * Description: 5369 * If val is in a valid range [0-2], then affinitze the adapter's 5370 * MSIX vectors. 5371 * 5372 * Returns: 5373 * zero if val saved. 5374 * -EINVAL val out of range 5375 **/ 5376 static int 5377 lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) 5378 { 5379 if (phba->sli_rev != LPFC_SLI_REV4) { 5380 phba->cfg_fcp_cpu_map = 0; 5381 return 0; 5382 } 5383 5384 if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { 5385 phba->cfg_fcp_cpu_map = val; 5386 return 0; 5387 } 5388 5389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5390 "3326 lpfc_fcp_cpu_map: %d out of range, using " 5391 "default\n", val); 5392 phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; 5393 5394 return 0; 5395 } 5396 5397 static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); 5398 5399 /* 5400 # lpfc_fcp_class: Determines FC class to use for the FCP protocol. 5401 # Value range is [2,3]. Default value is 3. 5402 */ 5403 LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, 5404 "Select Fibre Channel class of service for FCP sequences"); 5405 5406 /* 5407 # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range 5408 # is [0,1]. Default value is 0. 5409 */ 5410 LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, 5411 "Use ADISC on rediscovery to authenticate FCP devices"); 5412 5413 /* 5414 # lpfc_first_burst_size: First burst size to use on the NPorts 5415 # that support first burst. 5416 # Value range is [0,65536]. Default value is 0. 5417 */ 5418 LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, 5419 "First burst size for Targets that support first burst"); 5420 5421 /* 5422 * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. 5423 * When the driver is configured as an NVME target, this value is 5424 * communicated to the NVME initiator in the PRLI response. It is 5425 * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support 5426 * parameters are set and the target is sending the PRLI RSP. 5427 * Parameter supported on physical port only - no NPIV support. 5428 * Value range is [0,65536]. Default value is 0. 5429 */ 5430 LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, 5431 "NVME Target mode first burst size in 512B increments."); 5432 5433 /* 5434 * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. 5435 * For the Initiator (I), enabling this parameter means that an NVMET 5436 * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be 5437 * processed by the initiator for subsequent NVME FCP IO. 5438 * Currently, this feature is not supported on the NVME target 5439 * Value range is [0,1]. Default value is 0 (disabled). 5440 */ 5441 LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, 5442 "Enable First Burst feature for NVME Initiator."); 5443 5444 /* 5445 # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue 5446 # depth. Default value is 0. When the value of this parameter is zero the 5447 # SCSI command completion time is not used for controlling I/O queue depth. When 5448 # the parameter is set to a non-zero value, the I/O queue depth is controlled 5449 # to limit the I/O completion time to the parameter value. 5450 # The value is set in milliseconds. 5451 */ 5452 LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, 5453 "Use command completion time to control queue depth"); 5454 5455 lpfc_vport_param_show(max_scsicmpl_time); 5456 static int 5457 lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) 5458 { 5459 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 5460 struct lpfc_nodelist *ndlp, *next_ndlp; 5461 5462 if (val == vport->cfg_max_scsicmpl_time) 5463 return 0; 5464 if ((val < 0) || (val > 60000)) 5465 return -EINVAL; 5466 vport->cfg_max_scsicmpl_time = val; 5467 5468 spin_lock_irq(shost->host_lock); 5469 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 5470 if (!NLP_CHK_NODE_ACT(ndlp)) 5471 continue; 5472 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 5473 continue; 5474 ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; 5475 } 5476 spin_unlock_irq(shost->host_lock); 5477 return 0; 5478 } 5479 lpfc_vport_param_store(max_scsicmpl_time); 5480 static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); 5481 5482 /* 5483 # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 5484 # range is [0,1]. Default value is 0. 5485 */ 5486 LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); 5487 5488 /* 5489 # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature 5490 # range is [0,1]. Default value is 1. 5491 */ 5492 LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); 5493 5494 /* 5495 * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds 5496 * range is [0,1]. Default value is 0. 5497 * For [0], FCP commands are issued to Work Queues based on upper layer 5498 * hardware queue index. 5499 * For [1], FCP commands are issued to a Work Queue associated with the 5500 * current CPU. 5501 * 5502 * LPFC_FCP_SCHED_BY_HDWQ == 0 5503 * LPFC_FCP_SCHED_BY_CPU == 1 5504 * 5505 * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu 5506 * affinity for FCP/NVME I/Os through Work Queues associated with the current 5507 * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os 5508 * through WQs will be used. 5509 */ 5510 LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, 5511 LPFC_FCP_SCHED_BY_HDWQ, 5512 LPFC_FCP_SCHED_BY_CPU, 5513 "Determine scheduling algorithm for " 5514 "issuing commands [0] - Hardware Queue, [1] - Current CPU"); 5515 5516 /* 5517 * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN 5518 * range is [0,1]. Default value is 0. 5519 * For [0], GID_FT is used for NameServer queries after RSCN (default) 5520 * For [1], GID_PT is used for NameServer queries after RSCN 5521 * 5522 */ 5523 LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, 5524 LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, 5525 "Determine algorithm NameServer queries after RSCN " 5526 "[0] - GID_FT, [1] - GID_PT"); 5527 5528 /* 5529 # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior 5530 # range is [0,1]. Default value is 0. 5531 # For [0], bus reset issues target reset to ALL devices 5532 # For [1], bus reset issues target reset to non-FCP2 devices 5533 */ 5534 LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " 5535 "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); 5536 5537 5538 /* 5539 # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing 5540 # cr_delay (msec) or cr_count outstanding commands. cr_delay can take 5541 # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay 5542 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if 5543 # cr_delay is set to 0. 5544 */ 5545 LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " 5546 "interrupt response is generated"); 5547 5548 LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " 5549 "interrupt response is generated"); 5550 5551 /* 5552 # lpfc_multi_ring_support: Determines how many rings to spread available 5553 # cmd/rsp IOCB entries across. 5554 # Value range is [1,2]. Default value is 1. 5555 */ 5556 LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " 5557 "SLI rings to spread IOCB entries across"); 5558 5559 /* 5560 # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this 5561 # identifies what rctl value to configure the additional ring for. 5562 # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). 5563 */ 5564 LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 5565 255, "Identifies RCTL for additional ring configuration"); 5566 5567 /* 5568 # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this 5569 # identifies what type value to configure the additional ring for. 5570 # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). 5571 */ 5572 LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 5573 255, "Identifies TYPE for additional ring configuration"); 5574 5575 /* 5576 # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN 5577 # 0 = SmartSAN functionality disabled (default) 5578 # 1 = SmartSAN functionality enabled 5579 # This parameter will override the value of lpfc_fdmi_on module parameter. 5580 # Value range is [0,1]. Default value is 0. 5581 */ 5582 LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); 5583 5584 /* 5585 # lpfc_fdmi_on: Controls FDMI support. 5586 # 0 No FDMI support 5587 # 1 Traditional FDMI support (default) 5588 # Traditional FDMI support means the driver will assume FDMI-2 support; 5589 # however, if that fails, it will fallback to FDMI-1. 5590 # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. 5591 # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of 5592 # lpfc_fdmi_on. 5593 # Value range [0,1]. Default value is 1. 5594 */ 5595 LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); 5596 5597 /* 5598 # Specifies the maximum number of ELS cmds we can have outstanding (for 5599 # discovery). Value range is [1,64]. Default value = 32. 5600 */ 5601 LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " 5602 "during discovery"); 5603 5604 /* 5605 # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that 5606 # will be scanned by the SCSI midlayer when sequential scanning is 5607 # used; and is also the highest LUN ID allowed when the SCSI midlayer 5608 # parses REPORT_LUN responses. The lpfc driver has no LUN count or 5609 # LUN ID limit, but the SCSI midlayer requires this field for the uses 5610 # above. The lpfc driver limits the default value to 255 for two reasons. 5611 # As it bounds the sequential scan loop, scanning for thousands of luns 5612 # on a target can take minutes of wall clock time. Additionally, 5613 # there are FC targets, such as JBODs, that only recognize 8-bits of 5614 # LUN ID. When they receive a value greater than 8 bits, they chop off 5615 # the high order bits. In other words, they see LUN IDs 0, 256, 512, 5616 # and so on all as LUN ID 0. This causes the linux kernel, which sees 5617 # valid responses at each of the LUN IDs, to believe there are multiple 5618 # devices present, when in fact, there is only 1. 5619 # A customer that is aware of their target behaviors, and the results as 5620 # indicated above, is welcome to increase the lpfc_max_luns value. 5621 # As mentioned, this value is not used by the lpfc driver, only the 5622 # SCSI midlayer. 5623 # Value range is [0,65535]. Default value is 255. 5624 # NOTE: The SCSI layer might probe all allowed LUN on some old targets. 5625 */ 5626 LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); 5627 5628 /* 5629 # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. 5630 # Value range is [1,255], default value is 10. 5631 */ 5632 LPFC_ATTR_RW(poll_tmo, 10, 1, 255, 5633 "Milliseconds driver will wait between polling FCP ring"); 5634 5635 /* 5636 # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands 5637 # to complete in seconds. Value range is [5,180], default value is 60. 5638 */ 5639 LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, 5640 "Maximum time to wait for task management commands to complete"); 5641 /* 5642 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 5643 # support this feature 5644 # 0 = MSI disabled 5645 # 1 = MSI enabled 5646 # 2 = MSI-X enabled (default) 5647 # Value range is [0,2]. Default value is 2. 5648 */ 5649 LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " 5650 "MSI-X (2), if possible"); 5651 5652 /* 5653 * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs 5654 * 5655 * 0 = NVME OAS disabled 5656 * 1 = NVME OAS enabled 5657 * 5658 * Value range is [0,1]. Default value is 0. 5659 */ 5660 LPFC_ATTR_RW(nvme_oas, 0, 0, 1, 5661 "Use OAS bit on NVME IOs"); 5662 5663 /* 5664 * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs 5665 * 5666 * 0 = Put NVME Command in SGL 5667 * 1 = Embed NVME Command in WQE (unless G7) 5668 * 2 = Embed NVME Command in WQE (force) 5669 * 5670 * Value range is [0,2]. Default value is 1. 5671 */ 5672 LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, 5673 "Embed NVME Command in WQE"); 5674 5675 /* 5676 * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues 5677 * the driver will advertise it supports to the SCSI layer. 5678 * 5679 * 0 = Set nr_hw_queues by the number of CPUs or HW queues. 5680 * 1,256 = Manually specify nr_hw_queue value to be advertised, 5681 * 5682 * Value range is [0,256]. Default value is 8. 5683 */ 5684 LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, 5685 LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, 5686 "Set the number of SCSI Queues advertised"); 5687 5688 /* 5689 * lpfc_hdw_queue: Set the number of Hardware Queues the driver 5690 * will advertise it supports to the NVME and SCSI layers. This also 5691 * will map to the number of CQ/WQ pairs the driver will create. 5692 * 5693 * The NVME Layer will try to create this many, plus 1 administrative 5694 * hardware queue. The administrative queue will always map to WQ 0 5695 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. 5696 * 5697 * 0 = Configure the number of hdw queues to the number of active CPUs. 5698 * 1,256 = Manually specify how many hdw queues to use. 5699 * 5700 * Value range is [0,256]. Default value is 0. 5701 */ 5702 LPFC_ATTR_R(hdw_queue, 5703 LPFC_HBA_HDWQ_DEF, 5704 LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, 5705 "Set the number of I/O Hardware Queues"); 5706 5707 static inline void 5708 lpfc_assign_default_irq_numa(struct lpfc_hba *phba) 5709 { 5710 #if IS_ENABLED(CONFIG_X86) 5711 /* If AMD architecture, then default is LPFC_IRQ_CHANN_NUMA */ 5712 if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) 5713 phba->cfg_irq_numa = 1; 5714 else 5715 phba->cfg_irq_numa = 0; 5716 #else 5717 phba->cfg_irq_numa = 0; 5718 #endif 5719 } 5720 5721 /* 5722 * lpfc_irq_chann: Set the number of IRQ vectors that are available 5723 * for Hardware Queues to utilize. This also will map to the number 5724 * of EQ / MSI-X vectors the driver will create. This should never be 5725 * more than the number of Hardware Queues 5726 * 5727 * 0 = Configure number of IRQ Channels to: 5728 * if AMD architecture, number of CPUs on HBA's NUMA node 5729 * otherwise, number of active CPUs. 5730 * [1,256] = Manually specify how many IRQ Channels to use. 5731 * 5732 * Value range is [0,256]. Default value is [0]. 5733 */ 5734 static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; 5735 module_param(lpfc_irq_chann, uint, 0444); 5736 MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); 5737 5738 /* lpfc_irq_chann_init - Set the hba irq_chann initial value 5739 * @phba: lpfc_hba pointer. 5740 * @val: contains the initial value 5741 * 5742 * Description: 5743 * Validates the initial value is within range and assigns it to the 5744 * adapter. If not in range, an error message is posted and the 5745 * default value is assigned. 5746 * 5747 * Returns: 5748 * zero if value is in range and is set 5749 * -EINVAL if value was out of range 5750 **/ 5751 static int 5752 lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) 5753 { 5754 const struct cpumask *numa_mask; 5755 5756 if (phba->cfg_use_msi != 2) { 5757 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5758 "8532 use_msi = %u ignoring cfg_irq_numa\n", 5759 phba->cfg_use_msi); 5760 phba->cfg_irq_numa = 0; 5761 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5762 return 0; 5763 } 5764 5765 /* Check if default setting was passed */ 5766 if (val == LPFC_IRQ_CHANN_DEF) 5767 lpfc_assign_default_irq_numa(phba); 5768 5769 if (phba->cfg_irq_numa) { 5770 numa_mask = &phba->sli4_hba.numa_mask; 5771 5772 if (cpumask_empty(numa_mask)) { 5773 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5774 "8533 Could not identify NUMA node, " 5775 "ignoring cfg_irq_numa\n"); 5776 phba->cfg_irq_numa = 0; 5777 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5778 } else { 5779 phba->cfg_irq_chann = cpumask_weight(numa_mask); 5780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5781 "8543 lpfc_irq_chann set to %u " 5782 "(numa)\n", phba->cfg_irq_chann); 5783 } 5784 } else { 5785 if (val > LPFC_IRQ_CHANN_MAX) { 5786 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5787 "8545 lpfc_irq_chann attribute cannot " 5788 "be set to %u, allowed range is " 5789 "[%u,%u]\n", 5790 val, 5791 LPFC_IRQ_CHANN_MIN, 5792 LPFC_IRQ_CHANN_MAX); 5793 phba->cfg_irq_chann = LPFC_IRQ_CHANN_MIN; 5794 return -EINVAL; 5795 } 5796 phba->cfg_irq_chann = val; 5797 } 5798 5799 return 0; 5800 } 5801 5802 /** 5803 * lpfc_irq_chann_show - Display value of irq_chann 5804 * @dev: class converted to a Scsi_host structure. 5805 * @attr: device attribute, not used. 5806 * @buf: on return contains a string with the list sizes 5807 * 5808 * Returns: size of formatted string. 5809 **/ 5810 static ssize_t 5811 lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, 5812 char *buf) 5813 { 5814 struct Scsi_Host *shost = class_to_shost(dev); 5815 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5816 struct lpfc_hba *phba = vport->phba; 5817 5818 return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); 5819 } 5820 5821 static DEVICE_ATTR_RO(lpfc_irq_chann); 5822 5823 /* 5824 # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. 5825 # 0 = HBA resets disabled 5826 # 1 = HBA resets enabled (default) 5827 # 2 = HBA reset via PCI bus reset enabled 5828 # Value range is [0,2]. Default value is 1. 5829 */ 5830 LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); 5831 5832 /* 5833 # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. 5834 # 0 = HBA Heartbeat disabled 5835 # 1 = HBA Heartbeat enabled (default) 5836 # Value range is [0,1]. Default value is 1. 5837 */ 5838 LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); 5839 5840 /* 5841 # lpfc_EnableXLane: Enable Express Lane Feature 5842 # 0x0 Express Lane Feature disabled 5843 # 0x1 Express Lane Feature enabled 5844 # Value range is [0,1]. Default value is 0. 5845 */ 5846 LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); 5847 5848 /* 5849 # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature 5850 # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) 5851 # Value range is [0x0,0x7f]. Default value is 0 5852 */ 5853 LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); 5854 5855 /* 5856 # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) 5857 # 0 = BlockGuard disabled (default) 5858 # 1 = BlockGuard enabled 5859 # Value range is [0,1]. Default value is 0. 5860 */ 5861 LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); 5862 5863 /* 5864 # lpfc_prot_mask: i 5865 # - Bit mask of host protection capabilities used to register with the 5866 # SCSI mid-layer 5867 # - Only meaningful if BG is turned on (lpfc_enable_bg=1). 5868 # - Allows you to ultimately specify which profiles to use 5869 # - Default will result in registering capabilities for all profiles. 5870 # - SHOST_DIF_TYPE1_PROTECTION 1 5871 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection 5872 # - SHOST_DIX_TYPE0_PROTECTION 8 5873 # HBA supports DIX Type 0: Host to HBA protection only 5874 # - SHOST_DIX_TYPE1_PROTECTION 16 5875 # HBA supports DIX Type 1: Host to HBA Type 1 protection 5876 # 5877 */ 5878 LPFC_ATTR(prot_mask, 5879 (SHOST_DIF_TYPE1_PROTECTION | 5880 SHOST_DIX_TYPE0_PROTECTION | 5881 SHOST_DIX_TYPE1_PROTECTION), 5882 0, 5883 (SHOST_DIF_TYPE1_PROTECTION | 5884 SHOST_DIX_TYPE0_PROTECTION | 5885 SHOST_DIX_TYPE1_PROTECTION), 5886 "T10-DIF host protection capabilities mask"); 5887 5888 /* 5889 # lpfc_prot_guard: i 5890 # - Bit mask of protection guard types to register with the SCSI mid-layer 5891 # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum 5892 # - Allows you to ultimately specify which profiles to use 5893 # - Default will result in registering capabilities for all guard types 5894 # 5895 */ 5896 LPFC_ATTR(prot_guard, 5897 SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, 5898 "T10-DIF host protection guard type"); 5899 5900 /* 5901 * Delay initial NPort discovery when Clean Address bit is cleared in 5902 * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. 5903 * This parameter can have value 0 or 1. 5904 * When this parameter is set to 0, no delay is added to the initial 5905 * discovery. 5906 * When this parameter is set to non-zero value, initial Nport discovery is 5907 * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC 5908 * accept and FCID/Fabric name/Fabric portname is changed. 5909 * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion 5910 * when Clean Address bit is cleared in FLOGI/FDISC 5911 * accept and FCID/Fabric name/Fabric portname is changed. 5912 * Default value is 0. 5913 */ 5914 LPFC_ATTR(delay_discovery, 0, 0, 1, 5915 "Delay NPort discovery when Clean Address bit is cleared."); 5916 5917 /* 5918 * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count 5919 * This value can be set to values between 64 and 4096. The default value 5920 * is 64, but may be increased to allow for larger Max I/O sizes. The scsi 5921 * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). 5922 * Because of the additional overhead involved in setting up T10-DIF, 5923 * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 5924 * and will be limited to 512 if BlockGuard is enabled under SLI3. 5925 */ 5926 static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5927 module_param(lpfc_sg_seg_cnt, uint, 0444); 5928 MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); 5929 5930 /** 5931 * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes 5932 * configured for the adapter 5933 * @dev: class converted to a Scsi_host structure. 5934 * @attr: device attribute, not used. 5935 * @buf: on return contains a string with the list sizes 5936 * 5937 * Returns: size of formatted string. 5938 **/ 5939 static ssize_t 5940 lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, 5941 char *buf) 5942 { 5943 struct Scsi_Host *shost = class_to_shost(dev); 5944 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 5945 struct lpfc_hba *phba = vport->phba; 5946 int len; 5947 5948 len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", 5949 phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); 5950 5951 len += scnprintf(buf + len, PAGE_SIZE, "Cfg: %d SCSI: %d NVME: %d\n", 5952 phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, 5953 phba->cfg_nvme_seg_cnt); 5954 return len; 5955 } 5956 5957 static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); 5958 5959 /** 5960 * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value 5961 * @phba: lpfc_hba pointer. 5962 * @val: contains the initial value 5963 * 5964 * Description: 5965 * Validates the initial value is within range and assigns it to the 5966 * adapter. If not in range, an error message is posted and the 5967 * default value is assigned. 5968 * 5969 * Returns: 5970 * zero if value is in range and is set 5971 * -EINVAL if value was out of range 5972 **/ 5973 static int 5974 lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) 5975 { 5976 if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { 5977 phba->cfg_sg_seg_cnt = val; 5978 return 0; 5979 } 5980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5981 "0409 "LPFC_DRIVER_NAME"_sg_seg_cnt attribute cannot " 5982 "be set to %d, allowed range is [%d, %d]\n", 5983 val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); 5984 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; 5985 return -EINVAL; 5986 } 5987 5988 /* 5989 * lpfc_enable_mds_diags: Enable MDS Diagnostics 5990 * 0 = MDS Diagnostics disabled (default) 5991 * 1 = MDS Diagnostics enabled 5992 * Value range is [0,1]. Default value is 0. 5993 */ 5994 LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); 5995 5996 /* 5997 * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size 5998 * 0 = Disable firmware logging (default) 5999 * [1-4] = Multiple of 1/4th Mb of host memory for FW logging 6000 * Value range [0..4]. Default value is 0 6001 */ 6002 LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); 6003 lpfc_param_show(ras_fwlog_buffsize); 6004 6005 static ssize_t 6006 lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) 6007 { 6008 int ret = 0; 6009 enum ras_state state; 6010 6011 if (!lpfc_rangecheck(val, 0, 4)) 6012 return -EINVAL; 6013 6014 if (phba->cfg_ras_fwlog_buffsize == val) 6015 return 0; 6016 6017 if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) 6018 return -EINVAL; 6019 6020 spin_lock_irq(&phba->hbalock); 6021 state = phba->ras_fwlog.state; 6022 spin_unlock_irq(&phba->hbalock); 6023 6024 if (state == REG_INPROGRESS) { 6025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " 6026 "registration is in progress\n"); 6027 return -EBUSY; 6028 } 6029 6030 /* For disable logging: stop the logs and free the DMA. 6031 * For ras_fwlog_buffsize size change we still need to free and 6032 * reallocate the DMA in lpfc_sli4_ras_fwlog_init. 6033 */ 6034 phba->cfg_ras_fwlog_buffsize = val; 6035 if (state == ACTIVE) { 6036 lpfc_ras_stop_fwlog(phba); 6037 lpfc_sli4_ras_dma_free(phba); 6038 } 6039 6040 lpfc_sli4_ras_init(phba); 6041 if (phba->ras_fwlog.ras_enabled) 6042 ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, 6043 LPFC_RAS_ENABLE_LOGGING); 6044 return ret; 6045 } 6046 6047 lpfc_param_store(ras_fwlog_buffsize); 6048 static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); 6049 6050 /* 6051 * lpfc_ras_fwlog_level: Firmware logging verbosity level 6052 * Valid only if firmware logging is enabled 6053 * 0(Least Verbosity) 4 (most verbosity) 6054 * Value range is [0..4]. Default value is 0 6055 */ 6056 LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); 6057 6058 /* 6059 * lpfc_ras_fwlog_func: Firmware logging enabled on function number 6060 * Default function which has RAS support : 0 6061 * Value Range is [0..7]. 6062 * FW logging is a global action and enablement is via a specific 6063 * port. 6064 */ 6065 LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); 6066 6067 /* 6068 * lpfc_enable_bbcr: Enable BB Credit Recovery 6069 * 0 = BB Credit Recovery disabled 6070 * 1 = BB Credit Recovery enabled (default) 6071 * Value range is [0,1]. Default value is 1. 6072 */ 6073 LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); 6074 6075 /* 6076 * lpfc_enable_dpp: Enable DPP on G7 6077 * 0 = DPP on G7 disabled 6078 * 1 = DPP on G7 enabled (default) 6079 * Value range is [0,1]. Default value is 1. 6080 */ 6081 LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); 6082 6083 struct device_attribute *lpfc_hba_attrs[] = { 6084 &dev_attr_nvme_info, 6085 &dev_attr_scsi_stat, 6086 &dev_attr_bg_info, 6087 &dev_attr_bg_guard_err, 6088 &dev_attr_bg_apptag_err, 6089 &dev_attr_bg_reftag_err, 6090 &dev_attr_info, 6091 &dev_attr_serialnum, 6092 &dev_attr_modeldesc, 6093 &dev_attr_modelname, 6094 &dev_attr_programtype, 6095 &dev_attr_portnum, 6096 &dev_attr_fwrev, 6097 &dev_attr_hdw, 6098 &dev_attr_option_rom_version, 6099 &dev_attr_link_state, 6100 &dev_attr_num_discovered_ports, 6101 &dev_attr_menlo_mgmt_mode, 6102 &dev_attr_lpfc_drvr_version, 6103 &dev_attr_lpfc_enable_fip, 6104 &dev_attr_lpfc_temp_sensor, 6105 &dev_attr_lpfc_log_verbose, 6106 &dev_attr_lpfc_lun_queue_depth, 6107 &dev_attr_lpfc_tgt_queue_depth, 6108 &dev_attr_lpfc_hba_queue_depth, 6109 &dev_attr_lpfc_peer_port_login, 6110 &dev_attr_lpfc_nodev_tmo, 6111 &dev_attr_lpfc_devloss_tmo, 6112 &dev_attr_lpfc_enable_fc4_type, 6113 &dev_attr_lpfc_fcp_class, 6114 &dev_attr_lpfc_use_adisc, 6115 &dev_attr_lpfc_first_burst_size, 6116 &dev_attr_lpfc_ack0, 6117 &dev_attr_lpfc_xri_rebalancing, 6118 &dev_attr_lpfc_topology, 6119 &dev_attr_lpfc_scan_down, 6120 &dev_attr_lpfc_link_speed, 6121 &dev_attr_lpfc_fcp_io_sched, 6122 &dev_attr_lpfc_ns_query, 6123 &dev_attr_lpfc_fcp2_no_tgt_reset, 6124 &dev_attr_lpfc_cr_delay, 6125 &dev_attr_lpfc_cr_count, 6126 &dev_attr_lpfc_multi_ring_support, 6127 &dev_attr_lpfc_multi_ring_rctl, 6128 &dev_attr_lpfc_multi_ring_type, 6129 &dev_attr_lpfc_fdmi_on, 6130 &dev_attr_lpfc_enable_SmartSAN, 6131 &dev_attr_lpfc_max_luns, 6132 &dev_attr_lpfc_enable_npiv, 6133 &dev_attr_lpfc_fcf_failover_policy, 6134 &dev_attr_lpfc_enable_rrq, 6135 &dev_attr_nport_evt_cnt, 6136 &dev_attr_board_mode, 6137 &dev_attr_max_vpi, 6138 &dev_attr_used_vpi, 6139 &dev_attr_max_rpi, 6140 &dev_attr_used_rpi, 6141 &dev_attr_max_xri, 6142 &dev_attr_used_xri, 6143 &dev_attr_npiv_info, 6144 &dev_attr_issue_reset, 6145 &dev_attr_lpfc_poll, 6146 &dev_attr_lpfc_poll_tmo, 6147 &dev_attr_lpfc_task_mgmt_tmo, 6148 &dev_attr_lpfc_use_msi, 6149 &dev_attr_lpfc_nvme_oas, 6150 &dev_attr_lpfc_nvme_embed_cmd, 6151 &dev_attr_lpfc_fcp_imax, 6152 &dev_attr_lpfc_force_rscn, 6153 &dev_attr_lpfc_cq_poll_threshold, 6154 &dev_attr_lpfc_cq_max_proc_limit, 6155 &dev_attr_lpfc_fcp_cpu_map, 6156 &dev_attr_lpfc_fcp_mq_threshold, 6157 &dev_attr_lpfc_hdw_queue, 6158 &dev_attr_lpfc_irq_chann, 6159 &dev_attr_lpfc_suppress_rsp, 6160 &dev_attr_lpfc_nvmet_mrq, 6161 &dev_attr_lpfc_nvmet_mrq_post, 6162 &dev_attr_lpfc_nvme_enable_fb, 6163 &dev_attr_lpfc_nvmet_fb_size, 6164 &dev_attr_lpfc_enable_bg, 6165 &dev_attr_lpfc_soft_wwnn, 6166 &dev_attr_lpfc_soft_wwpn, 6167 &dev_attr_lpfc_soft_wwn_enable, 6168 &dev_attr_lpfc_enable_hba_reset, 6169 &dev_attr_lpfc_enable_hba_heartbeat, 6170 &dev_attr_lpfc_EnableXLane, 6171 &dev_attr_lpfc_XLanePriority, 6172 &dev_attr_lpfc_xlane_lun, 6173 &dev_attr_lpfc_xlane_tgt, 6174 &dev_attr_lpfc_xlane_vpt, 6175 &dev_attr_lpfc_xlane_lun_state, 6176 &dev_attr_lpfc_xlane_lun_status, 6177 &dev_attr_lpfc_xlane_priority, 6178 &dev_attr_lpfc_sg_seg_cnt, 6179 &dev_attr_lpfc_max_scsicmpl_time, 6180 &dev_attr_lpfc_stat_data_ctrl, 6181 &dev_attr_lpfc_aer_support, 6182 &dev_attr_lpfc_aer_state_cleanup, 6183 &dev_attr_lpfc_sriov_nr_virtfn, 6184 &dev_attr_lpfc_req_fw_upgrade, 6185 &dev_attr_lpfc_suppress_link_up, 6186 &dev_attr_iocb_hw, 6187 &dev_attr_pls, 6188 &dev_attr_pt, 6189 &dev_attr_txq_hw, 6190 &dev_attr_txcmplq_hw, 6191 &dev_attr_lpfc_sriov_hw_max_virtfn, 6192 &dev_attr_protocol, 6193 &dev_attr_lpfc_xlane_supported, 6194 &dev_attr_lpfc_enable_mds_diags, 6195 &dev_attr_lpfc_ras_fwlog_buffsize, 6196 &dev_attr_lpfc_ras_fwlog_level, 6197 &dev_attr_lpfc_ras_fwlog_func, 6198 &dev_attr_lpfc_enable_bbcr, 6199 &dev_attr_lpfc_enable_dpp, 6200 NULL, 6201 }; 6202 6203 struct device_attribute *lpfc_vport_attrs[] = { 6204 &dev_attr_info, 6205 &dev_attr_link_state, 6206 &dev_attr_num_discovered_ports, 6207 &dev_attr_lpfc_drvr_version, 6208 &dev_attr_lpfc_log_verbose, 6209 &dev_attr_lpfc_lun_queue_depth, 6210 &dev_attr_lpfc_tgt_queue_depth, 6211 &dev_attr_lpfc_nodev_tmo, 6212 &dev_attr_lpfc_devloss_tmo, 6213 &dev_attr_lpfc_hba_queue_depth, 6214 &dev_attr_lpfc_peer_port_login, 6215 &dev_attr_lpfc_restrict_login, 6216 &dev_attr_lpfc_fcp_class, 6217 &dev_attr_lpfc_use_adisc, 6218 &dev_attr_lpfc_first_burst_size, 6219 &dev_attr_lpfc_max_luns, 6220 &dev_attr_nport_evt_cnt, 6221 &dev_attr_npiv_info, 6222 &dev_attr_lpfc_enable_da_id, 6223 &dev_attr_lpfc_max_scsicmpl_time, 6224 &dev_attr_lpfc_stat_data_ctrl, 6225 &dev_attr_lpfc_static_vport, 6226 NULL, 6227 }; 6228 6229 /** 6230 * sysfs_ctlreg_write - Write method for writing to ctlreg 6231 * @filp: open sysfs file 6232 * @kobj: kernel kobject that contains the kernel class device. 6233 * @bin_attr: kernel attributes passed to us. 6234 * @buf: contains the data to be written to the adapter IOREG space. 6235 * @off: offset into buffer to beginning of data. 6236 * @count: bytes to transfer. 6237 * 6238 * Description: 6239 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6240 * Uses the adapter io control registers to send buf contents to the adapter. 6241 * 6242 * Returns: 6243 * -ERANGE off and count combo out of range 6244 * -EINVAL off, count or buff address invalid 6245 * -EPERM adapter is offline 6246 * value of count, buf contents written 6247 **/ 6248 static ssize_t 6249 sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, 6250 struct bin_attribute *bin_attr, 6251 char *buf, loff_t off, size_t count) 6252 { 6253 size_t buf_off; 6254 struct device *dev = container_of(kobj, struct device, kobj); 6255 struct Scsi_Host *shost = class_to_shost(dev); 6256 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6257 struct lpfc_hba *phba = vport->phba; 6258 6259 if (phba->sli_rev >= LPFC_SLI_REV4) 6260 return -EPERM; 6261 6262 if ((off + count) > FF_REG_AREA_SIZE) 6263 return -ERANGE; 6264 6265 if (count <= LPFC_REG_WRITE_KEY_SIZE) 6266 return 0; 6267 6268 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6269 return -EINVAL; 6270 6271 /* This is to protect HBA registers from accidental writes. */ 6272 if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) 6273 return -EINVAL; 6274 6275 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 6276 return -EPERM; 6277 6278 spin_lock_irq(&phba->hbalock); 6279 for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; 6280 buf_off += sizeof(uint32_t)) 6281 writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), 6282 phba->ctrl_regs_memmap_p + off + buf_off); 6283 6284 spin_unlock_irq(&phba->hbalock); 6285 6286 return count; 6287 } 6288 6289 /** 6290 * sysfs_ctlreg_read - Read method for reading from ctlreg 6291 * @filp: open sysfs file 6292 * @kobj: kernel kobject that contains the kernel class device. 6293 * @bin_attr: kernel attributes passed to us. 6294 * @buf: if successful contains the data from the adapter IOREG space. 6295 * @off: offset into buffer to beginning of data. 6296 * @count: bytes to transfer. 6297 * 6298 * Description: 6299 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. 6300 * Uses the adapter io control registers to read data into buf. 6301 * 6302 * Returns: 6303 * -ERANGE off and count combo out of range 6304 * -EINVAL off, count or buff address invalid 6305 * value of count, buf contents read 6306 **/ 6307 static ssize_t 6308 sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, 6309 struct bin_attribute *bin_attr, 6310 char *buf, loff_t off, size_t count) 6311 { 6312 size_t buf_off; 6313 uint32_t * tmp_ptr; 6314 struct device *dev = container_of(kobj, struct device, kobj); 6315 struct Scsi_Host *shost = class_to_shost(dev); 6316 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6317 struct lpfc_hba *phba = vport->phba; 6318 6319 if (phba->sli_rev >= LPFC_SLI_REV4) 6320 return -EPERM; 6321 6322 if (off > FF_REG_AREA_SIZE) 6323 return -ERANGE; 6324 6325 if ((off + count) > FF_REG_AREA_SIZE) 6326 count = FF_REG_AREA_SIZE - off; 6327 6328 if (count == 0) return 0; 6329 6330 if (off % 4 || count % 4 || (unsigned long)buf % 4) 6331 return -EINVAL; 6332 6333 spin_lock_irq(&phba->hbalock); 6334 6335 for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { 6336 tmp_ptr = (uint32_t *)(buf + buf_off); 6337 *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); 6338 } 6339 6340 spin_unlock_irq(&phba->hbalock); 6341 6342 return count; 6343 } 6344 6345 static struct bin_attribute sysfs_ctlreg_attr = { 6346 .attr = { 6347 .name = "ctlreg", 6348 .mode = S_IRUSR | S_IWUSR, 6349 }, 6350 .size = 256, 6351 .read = sysfs_ctlreg_read, 6352 .write = sysfs_ctlreg_write, 6353 }; 6354 6355 /** 6356 * sysfs_mbox_write - Write method for writing information via mbox 6357 * @filp: open sysfs file 6358 * @kobj: kernel kobject that contains the kernel class device. 6359 * @bin_attr: kernel attributes passed to us. 6360 * @buf: contains the data to be written to sysfs mbox. 6361 * @off: offset into buffer to beginning of data. 6362 * @count: bytes to transfer. 6363 * 6364 * Description: 6365 * Deprecated function. All mailbox access from user space is performed via the 6366 * bsg interface. 6367 * 6368 * Returns: 6369 * -EPERM operation not permitted 6370 **/ 6371 static ssize_t 6372 sysfs_mbox_write(struct file *filp, struct kobject *kobj, 6373 struct bin_attribute *bin_attr, 6374 char *buf, loff_t off, size_t count) 6375 { 6376 return -EPERM; 6377 } 6378 6379 /** 6380 * sysfs_mbox_read - Read method for reading information via mbox 6381 * @filp: open sysfs file 6382 * @kobj: kernel kobject that contains the kernel class device. 6383 * @bin_attr: kernel attributes passed to us. 6384 * @buf: contains the data to be read from sysfs mbox. 6385 * @off: offset into buffer to beginning of data. 6386 * @count: bytes to transfer. 6387 * 6388 * Description: 6389 * Deprecated function. All mailbox access from user space is performed via the 6390 * bsg interface. 6391 * 6392 * Returns: 6393 * -EPERM operation not permitted 6394 **/ 6395 static ssize_t 6396 sysfs_mbox_read(struct file *filp, struct kobject *kobj, 6397 struct bin_attribute *bin_attr, 6398 char *buf, loff_t off, size_t count) 6399 { 6400 return -EPERM; 6401 } 6402 6403 static struct bin_attribute sysfs_mbox_attr = { 6404 .attr = { 6405 .name = "mbox", 6406 .mode = S_IRUSR | S_IWUSR, 6407 }, 6408 .size = MAILBOX_SYSFS_MAX, 6409 .read = sysfs_mbox_read, 6410 .write = sysfs_mbox_write, 6411 }; 6412 6413 /** 6414 * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries 6415 * @vport: address of lpfc vport structure. 6416 * 6417 * Return codes: 6418 * zero on success 6419 * error return code from sysfs_create_bin_file() 6420 **/ 6421 int 6422 lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 6423 { 6424 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6425 int error; 6426 6427 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6428 &sysfs_drvr_stat_data_attr); 6429 6430 /* Virtual ports do not need ctrl_reg and mbox */ 6431 if (error || vport->port_type == LPFC_NPIV_PORT) 6432 goto out; 6433 6434 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6435 &sysfs_ctlreg_attr); 6436 if (error) 6437 goto out_remove_stat_attr; 6438 6439 error = sysfs_create_bin_file(&shost->shost_dev.kobj, 6440 &sysfs_mbox_attr); 6441 if (error) 6442 goto out_remove_ctlreg_attr; 6443 6444 return 0; 6445 out_remove_ctlreg_attr: 6446 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6447 out_remove_stat_attr: 6448 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6449 &sysfs_drvr_stat_data_attr); 6450 out: 6451 return error; 6452 } 6453 6454 /** 6455 * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries 6456 * @vport: address of lpfc vport structure. 6457 **/ 6458 void 6459 lpfc_free_sysfs_attr(struct lpfc_vport *vport) 6460 { 6461 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6462 sysfs_remove_bin_file(&shost->shost_dev.kobj, 6463 &sysfs_drvr_stat_data_attr); 6464 /* Virtual ports do not need ctrl_reg and mbox */ 6465 if (vport->port_type == LPFC_NPIV_PORT) 6466 return; 6467 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 6468 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 6469 } 6470 6471 /* 6472 * Dynamic FC Host Attributes Support 6473 */ 6474 6475 /** 6476 * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host 6477 * @shost: kernel scsi host pointer. 6478 **/ 6479 static void 6480 lpfc_get_host_symbolic_name(struct Scsi_Host *shost) 6481 { 6482 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 6483 6484 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 6485 sizeof fc_host_symbolic_name(shost)); 6486 } 6487 6488 /** 6489 * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id 6490 * @shost: kernel scsi host pointer. 6491 **/ 6492 static void 6493 lpfc_get_host_port_id(struct Scsi_Host *shost) 6494 { 6495 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6496 6497 /* note: fc_myDID already in cpu endianness */ 6498 fc_host_port_id(shost) = vport->fc_myDID; 6499 } 6500 6501 /** 6502 * lpfc_get_host_port_type - Set the value of the scsi host port type 6503 * @shost: kernel scsi host pointer. 6504 **/ 6505 static void 6506 lpfc_get_host_port_type(struct Scsi_Host *shost) 6507 { 6508 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6509 struct lpfc_hba *phba = vport->phba; 6510 6511 spin_lock_irq(shost->host_lock); 6512 6513 if (vport->port_type == LPFC_NPIV_PORT) { 6514 fc_host_port_type(shost) = FC_PORTTYPE_NPIV; 6515 } else if (lpfc_is_link_up(phba)) { 6516 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6517 if (vport->fc_flag & FC_PUBLIC_LOOP) 6518 fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; 6519 else 6520 fc_host_port_type(shost) = FC_PORTTYPE_LPORT; 6521 } else { 6522 if (vport->fc_flag & FC_FABRIC) 6523 fc_host_port_type(shost) = FC_PORTTYPE_NPORT; 6524 else 6525 fc_host_port_type(shost) = FC_PORTTYPE_PTP; 6526 } 6527 } else 6528 fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; 6529 6530 spin_unlock_irq(shost->host_lock); 6531 } 6532 6533 /** 6534 * lpfc_get_host_port_state - Set the value of the scsi host port state 6535 * @shost: kernel scsi host pointer. 6536 **/ 6537 static void 6538 lpfc_get_host_port_state(struct Scsi_Host *shost) 6539 { 6540 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6541 struct lpfc_hba *phba = vport->phba; 6542 6543 spin_lock_irq(shost->host_lock); 6544 6545 if (vport->fc_flag & FC_OFFLINE_MODE) 6546 fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; 6547 else { 6548 switch (phba->link_state) { 6549 case LPFC_LINK_UNKNOWN: 6550 case LPFC_LINK_DOWN: 6551 fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; 6552 break; 6553 case LPFC_LINK_UP: 6554 case LPFC_CLEAR_LA: 6555 case LPFC_HBA_READY: 6556 /* Links up, reports port state accordingly */ 6557 if (vport->port_state < LPFC_VPORT_READY) 6558 fc_host_port_state(shost) = 6559 FC_PORTSTATE_BYPASSED; 6560 else 6561 fc_host_port_state(shost) = 6562 FC_PORTSTATE_ONLINE; 6563 break; 6564 case LPFC_HBA_ERROR: 6565 fc_host_port_state(shost) = FC_PORTSTATE_ERROR; 6566 break; 6567 default: 6568 fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; 6569 break; 6570 } 6571 } 6572 6573 spin_unlock_irq(shost->host_lock); 6574 } 6575 6576 /** 6577 * lpfc_get_host_speed - Set the value of the scsi host speed 6578 * @shost: kernel scsi host pointer. 6579 **/ 6580 static void 6581 lpfc_get_host_speed(struct Scsi_Host *shost) 6582 { 6583 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6584 struct lpfc_hba *phba = vport->phba; 6585 6586 spin_lock_irq(shost->host_lock); 6587 6588 if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { 6589 switch(phba->fc_linkspeed) { 6590 case LPFC_LINK_SPEED_1GHZ: 6591 fc_host_speed(shost) = FC_PORTSPEED_1GBIT; 6592 break; 6593 case LPFC_LINK_SPEED_2GHZ: 6594 fc_host_speed(shost) = FC_PORTSPEED_2GBIT; 6595 break; 6596 case LPFC_LINK_SPEED_4GHZ: 6597 fc_host_speed(shost) = FC_PORTSPEED_4GBIT; 6598 break; 6599 case LPFC_LINK_SPEED_8GHZ: 6600 fc_host_speed(shost) = FC_PORTSPEED_8GBIT; 6601 break; 6602 case LPFC_LINK_SPEED_10GHZ: 6603 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6604 break; 6605 case LPFC_LINK_SPEED_16GHZ: 6606 fc_host_speed(shost) = FC_PORTSPEED_16GBIT; 6607 break; 6608 case LPFC_LINK_SPEED_32GHZ: 6609 fc_host_speed(shost) = FC_PORTSPEED_32GBIT; 6610 break; 6611 case LPFC_LINK_SPEED_64GHZ: 6612 fc_host_speed(shost) = FC_PORTSPEED_64GBIT; 6613 break; 6614 case LPFC_LINK_SPEED_128GHZ: 6615 fc_host_speed(shost) = FC_PORTSPEED_128GBIT; 6616 break; 6617 default: 6618 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6619 break; 6620 } 6621 } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { 6622 switch (phba->fc_linkspeed) { 6623 case LPFC_ASYNC_LINK_SPEED_10GBPS: 6624 fc_host_speed(shost) = FC_PORTSPEED_10GBIT; 6625 break; 6626 case LPFC_ASYNC_LINK_SPEED_25GBPS: 6627 fc_host_speed(shost) = FC_PORTSPEED_25GBIT; 6628 break; 6629 case LPFC_ASYNC_LINK_SPEED_40GBPS: 6630 fc_host_speed(shost) = FC_PORTSPEED_40GBIT; 6631 break; 6632 case LPFC_ASYNC_LINK_SPEED_100GBPS: 6633 fc_host_speed(shost) = FC_PORTSPEED_100GBIT; 6634 break; 6635 default: 6636 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6637 break; 6638 } 6639 } else 6640 fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; 6641 6642 spin_unlock_irq(shost->host_lock); 6643 } 6644 6645 /** 6646 * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name 6647 * @shost: kernel scsi host pointer. 6648 **/ 6649 static void 6650 lpfc_get_host_fabric_name (struct Scsi_Host *shost) 6651 { 6652 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6653 struct lpfc_hba *phba = vport->phba; 6654 u64 node_name; 6655 6656 spin_lock_irq(shost->host_lock); 6657 6658 if ((vport->port_state > LPFC_FLOGI) && 6659 ((vport->fc_flag & FC_FABRIC) || 6660 ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && 6661 (vport->fc_flag & FC_PUBLIC_LOOP)))) 6662 node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); 6663 else 6664 /* fabric is local port if there is no F/FL_Port */ 6665 node_name = 0; 6666 6667 spin_unlock_irq(shost->host_lock); 6668 6669 fc_host_fabric_name(shost) = node_name; 6670 } 6671 6672 /** 6673 * lpfc_get_stats - Return statistical information about the adapter 6674 * @shost: kernel scsi host pointer. 6675 * 6676 * Notes: 6677 * NULL on error for link down, no mbox pool, sli2 active, 6678 * management not allowed, memory allocation error, or mbox error. 6679 * 6680 * Returns: 6681 * NULL for error 6682 * address of the adapter host statistics 6683 **/ 6684 static struct fc_host_statistics * 6685 lpfc_get_stats(struct Scsi_Host *shost) 6686 { 6687 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6688 struct lpfc_hba *phba = vport->phba; 6689 struct lpfc_sli *psli = &phba->sli; 6690 struct fc_host_statistics *hs = &phba->link_stats; 6691 struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; 6692 LPFC_MBOXQ_t *pmboxq; 6693 MAILBOX_t *pmb; 6694 int rc = 0; 6695 6696 /* 6697 * prevent udev from issuing mailbox commands until the port is 6698 * configured. 6699 */ 6700 if (phba->link_state < LPFC_LINK_DOWN || 6701 !phba->mbox_mem_pool || 6702 (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) 6703 return NULL; 6704 6705 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6706 return NULL; 6707 6708 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6709 if (!pmboxq) 6710 return NULL; 6711 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6712 6713 pmb = &pmboxq->u.mb; 6714 pmb->mbxCommand = MBX_READ_STATUS; 6715 pmb->mbxOwner = OWN_HOST; 6716 pmboxq->ctx_buf = NULL; 6717 pmboxq->vport = vport; 6718 6719 if (vport->fc_flag & FC_OFFLINE_MODE) 6720 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6721 else 6722 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6723 6724 if (rc != MBX_SUCCESS) { 6725 if (rc != MBX_TIMEOUT) 6726 mempool_free(pmboxq, phba->mbox_mem_pool); 6727 return NULL; 6728 } 6729 6730 memset(hs, 0, sizeof (struct fc_host_statistics)); 6731 6732 hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; 6733 /* 6734 * The MBX_READ_STATUS returns tx_k_bytes which has to 6735 * converted to words 6736 */ 6737 hs->tx_words = (uint64_t) 6738 ((uint64_t)pmb->un.varRdStatus.xmitByteCnt 6739 * (uint64_t)256); 6740 hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; 6741 hs->rx_words = (uint64_t) 6742 ((uint64_t)pmb->un.varRdStatus.rcvByteCnt 6743 * (uint64_t)256); 6744 6745 memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); 6746 pmb->mbxCommand = MBX_READ_LNK_STAT; 6747 pmb->mbxOwner = OWN_HOST; 6748 pmboxq->ctx_buf = NULL; 6749 pmboxq->vport = vport; 6750 6751 if (vport->fc_flag & FC_OFFLINE_MODE) 6752 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6753 else 6754 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6755 6756 if (rc != MBX_SUCCESS) { 6757 if (rc != MBX_TIMEOUT) 6758 mempool_free(pmboxq, phba->mbox_mem_pool); 6759 return NULL; 6760 } 6761 6762 hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6763 hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6764 hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6765 hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6766 hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6767 hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6768 hs->error_frames = pmb->un.varRdLnk.crcCnt; 6769 6770 hs->link_failure_count -= lso->link_failure_count; 6771 hs->loss_of_sync_count -= lso->loss_of_sync_count; 6772 hs->loss_of_signal_count -= lso->loss_of_signal_count; 6773 hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; 6774 hs->invalid_tx_word_count -= lso->invalid_tx_word_count; 6775 hs->invalid_crc_count -= lso->invalid_crc_count; 6776 hs->error_frames -= lso->error_frames; 6777 6778 if (phba->hba_flag & HBA_FCOE_MODE) { 6779 hs->lip_count = -1; 6780 hs->nos_count = (phba->link_events >> 1); 6781 hs->nos_count -= lso->link_events; 6782 } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { 6783 hs->lip_count = (phba->fc_eventTag >> 1); 6784 hs->lip_count -= lso->link_events; 6785 hs->nos_count = -1; 6786 } else { 6787 hs->lip_count = -1; 6788 hs->nos_count = (phba->fc_eventTag >> 1); 6789 hs->nos_count -= lso->link_events; 6790 } 6791 6792 hs->dumped_frames = -1; 6793 6794 hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; 6795 6796 mempool_free(pmboxq, phba->mbox_mem_pool); 6797 6798 return hs; 6799 } 6800 6801 /** 6802 * lpfc_reset_stats - Copy the adapter link stats information 6803 * @shost: kernel scsi host pointer. 6804 **/ 6805 static void 6806 lpfc_reset_stats(struct Scsi_Host *shost) 6807 { 6808 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6809 struct lpfc_hba *phba = vport->phba; 6810 struct lpfc_sli *psli = &phba->sli; 6811 struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; 6812 LPFC_MBOXQ_t *pmboxq; 6813 MAILBOX_t *pmb; 6814 int rc = 0; 6815 6816 if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) 6817 return; 6818 6819 pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6820 if (!pmboxq) 6821 return; 6822 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6823 6824 pmb = &pmboxq->u.mb; 6825 pmb->mbxCommand = MBX_READ_STATUS; 6826 pmb->mbxOwner = OWN_HOST; 6827 pmb->un.varWords[0] = 0x1; /* reset request */ 6828 pmboxq->ctx_buf = NULL; 6829 pmboxq->vport = vport; 6830 6831 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6832 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6833 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6834 else 6835 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6836 6837 if (rc != MBX_SUCCESS) { 6838 if (rc != MBX_TIMEOUT) 6839 mempool_free(pmboxq, phba->mbox_mem_pool); 6840 return; 6841 } 6842 6843 memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); 6844 pmb->mbxCommand = MBX_READ_LNK_STAT; 6845 pmb->mbxOwner = OWN_HOST; 6846 pmboxq->ctx_buf = NULL; 6847 pmboxq->vport = vport; 6848 6849 if ((vport->fc_flag & FC_OFFLINE_MODE) || 6850 (!(psli->sli_flag & LPFC_SLI_ACTIVE))) 6851 rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); 6852 else 6853 rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); 6854 6855 if (rc != MBX_SUCCESS) { 6856 if (rc != MBX_TIMEOUT) 6857 mempool_free( pmboxq, phba->mbox_mem_pool); 6858 return; 6859 } 6860 6861 lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; 6862 lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; 6863 lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; 6864 lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; 6865 lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; 6866 lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; 6867 lso->error_frames = pmb->un.varRdLnk.crcCnt; 6868 if (phba->hba_flag & HBA_FCOE_MODE) 6869 lso->link_events = (phba->link_events >> 1); 6870 else 6871 lso->link_events = (phba->fc_eventTag >> 1); 6872 6873 psli->stats_start = ktime_get_seconds(); 6874 6875 mempool_free(pmboxq, phba->mbox_mem_pool); 6876 6877 return; 6878 } 6879 6880 /* 6881 * The LPFC driver treats linkdown handling as target loss events so there 6882 * are no sysfs handlers for link_down_tmo. 6883 */ 6884 6885 /** 6886 * lpfc_get_node_by_target - Return the nodelist for a target 6887 * @starget: kernel scsi target pointer. 6888 * 6889 * Returns: 6890 * address of the node list if found 6891 * NULL target not found 6892 **/ 6893 static struct lpfc_nodelist * 6894 lpfc_get_node_by_target(struct scsi_target *starget) 6895 { 6896 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 6897 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6898 struct lpfc_nodelist *ndlp; 6899 6900 spin_lock_irq(shost->host_lock); 6901 /* Search for this, mapped, target ID */ 6902 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { 6903 if (NLP_CHK_NODE_ACT(ndlp) && 6904 ndlp->nlp_state == NLP_STE_MAPPED_NODE && 6905 starget->id == ndlp->nlp_sid) { 6906 spin_unlock_irq(shost->host_lock); 6907 return ndlp; 6908 } 6909 } 6910 spin_unlock_irq(shost->host_lock); 6911 return NULL; 6912 } 6913 6914 /** 6915 * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 6916 * @starget: kernel scsi target pointer. 6917 **/ 6918 static void 6919 lpfc_get_starget_port_id(struct scsi_target *starget) 6920 { 6921 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6922 6923 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 6924 } 6925 6926 /** 6927 * lpfc_get_starget_node_name - Set the target node name 6928 * @starget: kernel scsi target pointer. 6929 * 6930 * Description: Set the target node name to the ndlp node name wwn or zero. 6931 **/ 6932 static void 6933 lpfc_get_starget_node_name(struct scsi_target *starget) 6934 { 6935 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6936 6937 fc_starget_node_name(starget) = 6938 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 6939 } 6940 6941 /** 6942 * lpfc_get_starget_port_name - Set the target port name 6943 * @starget: kernel scsi target pointer. 6944 * 6945 * Description: set the target port name to the ndlp port name wwn or zero. 6946 **/ 6947 static void 6948 lpfc_get_starget_port_name(struct scsi_target *starget) 6949 { 6950 struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); 6951 6952 fc_starget_port_name(starget) = 6953 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 6954 } 6955 6956 /** 6957 * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo 6958 * @rport: fc rport address. 6959 * @timeout: new value for dev loss tmo. 6960 * 6961 * Description: 6962 * If timeout is non zero set the dev_loss_tmo to timeout, else set 6963 * dev_loss_tmo to one. 6964 **/ 6965 static void 6966 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 6967 { 6968 struct lpfc_rport_data *rdata = rport->dd_data; 6969 struct lpfc_nodelist *ndlp = rdata->pnode; 6970 #if (IS_ENABLED(CONFIG_NVME_FC)) 6971 struct lpfc_nvme_rport *nrport = NULL; 6972 #endif 6973 6974 if (timeout) 6975 rport->dev_loss_tmo = timeout; 6976 else 6977 rport->dev_loss_tmo = 1; 6978 6979 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 6980 dev_info(&rport->dev, "Cannot find remote node to " 6981 "set rport dev loss tmo, port_id x%x\n", 6982 rport->port_id); 6983 return; 6984 } 6985 6986 #if (IS_ENABLED(CONFIG_NVME_FC)) 6987 nrport = lpfc_ndlp_get_nrport(ndlp); 6988 6989 if (nrport && nrport->remoteport) 6990 nvme_fc_set_remoteport_devloss(nrport->remoteport, 6991 rport->dev_loss_tmo); 6992 #endif 6993 } 6994 6995 /** 6996 * lpfc_rport_show_function - Return rport target information 6997 * 6998 * Description: 6999 * Macro that uses field to generate a function with the name lpfc_show_rport_ 7000 * 7001 * lpfc_show_rport_##field: returns the bytes formatted in buf 7002 * @cdev: class converted to an fc_rport. 7003 * @buf: on return contains the target_field or zero. 7004 * 7005 * Returns: size of formatted string. 7006 **/ 7007 #define lpfc_rport_show_function(field, format_string, sz, cast) \ 7008 static ssize_t \ 7009 lpfc_show_rport_##field (struct device *dev, \ 7010 struct device_attribute *attr, \ 7011 char *buf) \ 7012 { \ 7013 struct fc_rport *rport = transport_class_to_rport(dev); \ 7014 struct lpfc_rport_data *rdata = rport->hostdata; \ 7015 return scnprintf(buf, sz, format_string, \ 7016 (rdata->target) ? cast rdata->target->field : 0); \ 7017 } 7018 7019 #define lpfc_rport_rd_attr(field, format_string, sz) \ 7020 lpfc_rport_show_function(field, format_string, sz, ) \ 7021 static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) 7022 7023 /** 7024 * lpfc_set_vport_symbolic_name - Set the vport's symbolic name 7025 * @fc_vport: The fc_vport who's symbolic name has been changed. 7026 * 7027 * Description: 7028 * This function is called by the transport after the @fc_vport's symbolic name 7029 * has been changed. This function re-registers the symbolic name with the 7030 * switch to propagate the change into the fabric if the vport is active. 7031 **/ 7032 static void 7033 lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) 7034 { 7035 struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; 7036 7037 if (vport->port_state == LPFC_VPORT_READY) 7038 lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); 7039 } 7040 7041 /** 7042 * lpfc_hba_log_verbose_init - Set hba's log verbose level 7043 * @phba: Pointer to lpfc_hba struct. 7044 * 7045 * This function is called by the lpfc_get_cfgparam() routine to set the 7046 * module lpfc_log_verbose into the @phba cfg_log_verbose for use with 7047 * log message according to the module's lpfc_log_verbose parameter setting 7048 * before hba port or vport created. 7049 **/ 7050 static void 7051 lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) 7052 { 7053 phba->cfg_log_verbose = verbose; 7054 } 7055 7056 struct fc_function_template lpfc_transport_functions = { 7057 /* fixed attributes the driver supports */ 7058 .show_host_node_name = 1, 7059 .show_host_port_name = 1, 7060 .show_host_supported_classes = 1, 7061 .show_host_supported_fc4s = 1, 7062 .show_host_supported_speeds = 1, 7063 .show_host_maxframe_size = 1, 7064 7065 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7066 .show_host_symbolic_name = 1, 7067 7068 /* dynamic attributes the driver supports */ 7069 .get_host_port_id = lpfc_get_host_port_id, 7070 .show_host_port_id = 1, 7071 7072 .get_host_port_type = lpfc_get_host_port_type, 7073 .show_host_port_type = 1, 7074 7075 .get_host_port_state = lpfc_get_host_port_state, 7076 .show_host_port_state = 1, 7077 7078 /* active_fc4s is shown but doesn't change (thus no get function) */ 7079 .show_host_active_fc4s = 1, 7080 7081 .get_host_speed = lpfc_get_host_speed, 7082 .show_host_speed = 1, 7083 7084 .get_host_fabric_name = lpfc_get_host_fabric_name, 7085 .show_host_fabric_name = 1, 7086 7087 /* 7088 * The LPFC driver treats linkdown handling as target loss events 7089 * so there are no sysfs handlers for link_down_tmo. 7090 */ 7091 7092 .get_fc_host_stats = lpfc_get_stats, 7093 .reset_fc_host_stats = lpfc_reset_stats, 7094 7095 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7096 .show_rport_maxframe_size = 1, 7097 .show_rport_supported_classes = 1, 7098 7099 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7100 .show_rport_dev_loss_tmo = 1, 7101 7102 .get_starget_port_id = lpfc_get_starget_port_id, 7103 .show_starget_port_id = 1, 7104 7105 .get_starget_node_name = lpfc_get_starget_node_name, 7106 .show_starget_node_name = 1, 7107 7108 .get_starget_port_name = lpfc_get_starget_port_name, 7109 .show_starget_port_name = 1, 7110 7111 .issue_fc_host_lip = lpfc_issue_lip, 7112 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7113 .terminate_rport_io = lpfc_terminate_rport_io, 7114 7115 .dd_fcvport_size = sizeof(struct lpfc_vport *), 7116 7117 .vport_disable = lpfc_vport_disable, 7118 7119 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7120 7121 .bsg_request = lpfc_bsg_request, 7122 .bsg_timeout = lpfc_bsg_timeout, 7123 }; 7124 7125 struct fc_function_template lpfc_vport_transport_functions = { 7126 /* fixed attributes the driver supports */ 7127 .show_host_node_name = 1, 7128 .show_host_port_name = 1, 7129 .show_host_supported_classes = 1, 7130 .show_host_supported_fc4s = 1, 7131 .show_host_supported_speeds = 1, 7132 .show_host_maxframe_size = 1, 7133 7134 .get_host_symbolic_name = lpfc_get_host_symbolic_name, 7135 .show_host_symbolic_name = 1, 7136 7137 /* dynamic attributes the driver supports */ 7138 .get_host_port_id = lpfc_get_host_port_id, 7139 .show_host_port_id = 1, 7140 7141 .get_host_port_type = lpfc_get_host_port_type, 7142 .show_host_port_type = 1, 7143 7144 .get_host_port_state = lpfc_get_host_port_state, 7145 .show_host_port_state = 1, 7146 7147 /* active_fc4s is shown but doesn't change (thus no get function) */ 7148 .show_host_active_fc4s = 1, 7149 7150 .get_host_speed = lpfc_get_host_speed, 7151 .show_host_speed = 1, 7152 7153 .get_host_fabric_name = lpfc_get_host_fabric_name, 7154 .show_host_fabric_name = 1, 7155 7156 /* 7157 * The LPFC driver treats linkdown handling as target loss events 7158 * so there are no sysfs handlers for link_down_tmo. 7159 */ 7160 7161 .get_fc_host_stats = lpfc_get_stats, 7162 .reset_fc_host_stats = lpfc_reset_stats, 7163 7164 .dd_fcrport_size = sizeof(struct lpfc_rport_data), 7165 .show_rport_maxframe_size = 1, 7166 .show_rport_supported_classes = 1, 7167 7168 .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, 7169 .show_rport_dev_loss_tmo = 1, 7170 7171 .get_starget_port_id = lpfc_get_starget_port_id, 7172 .show_starget_port_id = 1, 7173 7174 .get_starget_node_name = lpfc_get_starget_node_name, 7175 .show_starget_node_name = 1, 7176 7177 .get_starget_port_name = lpfc_get_starget_port_name, 7178 .show_starget_port_name = 1, 7179 7180 .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, 7181 .terminate_rport_io = lpfc_terminate_rport_io, 7182 7183 .vport_disable = lpfc_vport_disable, 7184 7185 .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, 7186 }; 7187 7188 /** 7189 * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE 7190 * Mode 7191 * @phba: lpfc_hba pointer. 7192 **/ 7193 static void 7194 lpfc_get_hba_function_mode(struct lpfc_hba *phba) 7195 { 7196 /* If the adapter supports FCoE mode */ 7197 switch (phba->pcidev->device) { 7198 case PCI_DEVICE_ID_SKYHAWK: 7199 case PCI_DEVICE_ID_SKYHAWK_VF: 7200 case PCI_DEVICE_ID_LANCER_FCOE: 7201 case PCI_DEVICE_ID_LANCER_FCOE_VF: 7202 case PCI_DEVICE_ID_ZEPHYR_DCSP: 7203 case PCI_DEVICE_ID_HORNET: 7204 case PCI_DEVICE_ID_TIGERSHARK: 7205 case PCI_DEVICE_ID_TOMCAT: 7206 phba->hba_flag |= HBA_FCOE_MODE; 7207 break; 7208 default: 7209 /* for others, clear the flag */ 7210 phba->hba_flag &= ~HBA_FCOE_MODE; 7211 } 7212 } 7213 7214 /** 7215 * lpfc_get_cfgparam - Used during probe_one to init the adapter structure 7216 * @phba: lpfc_hba pointer. 7217 **/ 7218 void 7219 lpfc_get_cfgparam(struct lpfc_hba *phba) 7220 { 7221 lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); 7222 lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); 7223 lpfc_ns_query_init(phba, lpfc_ns_query); 7224 lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); 7225 lpfc_cr_delay_init(phba, lpfc_cr_delay); 7226 lpfc_cr_count_init(phba, lpfc_cr_count); 7227 lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); 7228 lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); 7229 lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); 7230 lpfc_ack0_init(phba, lpfc_ack0); 7231 lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); 7232 lpfc_topology_init(phba, lpfc_topology); 7233 lpfc_link_speed_init(phba, lpfc_link_speed); 7234 lpfc_poll_tmo_init(phba, lpfc_poll_tmo); 7235 lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); 7236 lpfc_enable_npiv_init(phba, lpfc_enable_npiv); 7237 lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); 7238 lpfc_enable_rrq_init(phba, lpfc_enable_rrq); 7239 lpfc_fdmi_on_init(phba, lpfc_fdmi_on); 7240 lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); 7241 lpfc_use_msi_init(phba, lpfc_use_msi); 7242 lpfc_nvme_oas_init(phba, lpfc_nvme_oas); 7243 lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); 7244 lpfc_fcp_imax_init(phba, lpfc_fcp_imax); 7245 lpfc_force_rscn_init(phba, lpfc_force_rscn); 7246 lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); 7247 lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); 7248 lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); 7249 lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); 7250 lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); 7251 7252 lpfc_EnableXLane_init(phba, lpfc_EnableXLane); 7253 if (phba->sli_rev != LPFC_SLI_REV4) 7254 phba->cfg_EnableXLane = 0; 7255 lpfc_XLanePriority_init(phba, lpfc_XLanePriority); 7256 7257 memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); 7258 memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); 7259 phba->cfg_oas_lun_state = 0; 7260 phba->cfg_oas_lun_status = 0; 7261 phba->cfg_oas_flags = 0; 7262 phba->cfg_oas_priority = 0; 7263 lpfc_enable_bg_init(phba, lpfc_enable_bg); 7264 lpfc_prot_mask_init(phba, lpfc_prot_mask); 7265 lpfc_prot_guard_init(phba, lpfc_prot_guard); 7266 if (phba->sli_rev == LPFC_SLI_REV4) 7267 phba->cfg_poll = 0; 7268 else 7269 phba->cfg_poll = lpfc_poll; 7270 7271 /* Get the function mode */ 7272 lpfc_get_hba_function_mode(phba); 7273 7274 /* BlockGuard allowed for FC only. */ 7275 if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { 7276 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7277 "0581 BlockGuard feature not supported\n"); 7278 /* If set, clear the BlockGuard support param */ 7279 phba->cfg_enable_bg = 0; 7280 } else if (phba->cfg_enable_bg) { 7281 phba->sli3_options |= LPFC_SLI3_BG_ENABLED; 7282 } 7283 7284 lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); 7285 7286 lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); 7287 lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); 7288 lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); 7289 7290 /* Initialize first burst. Target vs Initiator are different. */ 7291 lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); 7292 lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); 7293 lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); 7294 lpfc_hdw_queue_init(phba, lpfc_hdw_queue); 7295 lpfc_irq_chann_init(phba, lpfc_irq_chann); 7296 lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); 7297 lpfc_enable_dpp_init(phba, lpfc_enable_dpp); 7298 7299 if (phba->sli_rev != LPFC_SLI_REV4) { 7300 /* NVME only supported on SLI4 */ 7301 phba->nvmet_support = 0; 7302 phba->cfg_nvmet_mrq = 0; 7303 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 7304 phba->cfg_enable_bbcr = 0; 7305 phba->cfg_xri_rebalancing = 0; 7306 } else { 7307 /* We MUST have FCP support */ 7308 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 7309 phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; 7310 } 7311 7312 phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; 7313 7314 phba->cfg_enable_pbde = 0; 7315 7316 /* A value of 0 means use the number of CPUs found in the system */ 7317 if (phba->cfg_hdw_queue == 0) 7318 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7319 if (phba->cfg_irq_chann == 0) 7320 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7321 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7322 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7323 7324 phba->cfg_soft_wwnn = 0L; 7325 phba->cfg_soft_wwpn = 0L; 7326 lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); 7327 lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 7328 lpfc_aer_support_init(phba, lpfc_aer_support); 7329 lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); 7330 lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); 7331 lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); 7332 lpfc_delay_discovery_init(phba, lpfc_delay_discovery); 7333 lpfc_sli_mode_init(phba, lpfc_sli_mode); 7334 lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); 7335 lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); 7336 lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); 7337 lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); 7338 7339 return; 7340 } 7341 7342 /** 7343 * lpfc_nvme_mod_param_dep - Adjust module parameter value based on 7344 * dependencies between protocols and roles. 7345 * @phba: lpfc_hba pointer. 7346 **/ 7347 void 7348 lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) 7349 { 7350 if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) 7351 phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; 7352 if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) 7353 phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; 7354 if (phba->cfg_irq_chann > phba->cfg_hdw_queue) 7355 phba->cfg_irq_chann = phba->cfg_hdw_queue; 7356 7357 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 7358 phba->nvmet_support) { 7359 phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; 7360 7361 lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, 7362 "6013 %s x%x fb_size x%x, fb_max x%x\n", 7363 "NVME Target PRLI ACC enable_fb ", 7364 phba->cfg_nvme_enable_fb, 7365 phba->cfg_nvmet_fb_size, 7366 LPFC_NVMET_FB_SZ_MAX); 7367 7368 if (phba->cfg_nvme_enable_fb == 0) 7369 phba->cfg_nvmet_fb_size = 0; 7370 else { 7371 if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) 7372 phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; 7373 } 7374 7375 if (!phba->cfg_nvmet_mrq) 7376 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7377 7378 /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ 7379 if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { 7380 phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; 7381 lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, 7382 "6018 Adjust lpfc_nvmet_mrq to %d\n", 7383 phba->cfg_nvmet_mrq); 7384 } 7385 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 7386 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 7387 7388 } else { 7389 /* Not NVME Target mode. Turn off Target parameters. */ 7390 phba->nvmet_support = 0; 7391 phba->cfg_nvmet_mrq = 0; 7392 phba->cfg_nvmet_fb_size = 0; 7393 } 7394 } 7395 7396 /** 7397 * lpfc_get_vport_cfgparam - Used during port create, init the vport structure 7398 * @vport: lpfc_vport pointer. 7399 **/ 7400 void 7401 lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 7402 { 7403 lpfc_log_verbose_init(vport, lpfc_log_verbose); 7404 lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); 7405 lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); 7406 lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); 7407 lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); 7408 lpfc_peer_port_login_init(vport, lpfc_peer_port_login); 7409 lpfc_restrict_login_init(vport, lpfc_restrict_login); 7410 lpfc_fcp_class_init(vport, lpfc_fcp_class); 7411 lpfc_use_adisc_init(vport, lpfc_use_adisc); 7412 lpfc_first_burst_size_init(vport, lpfc_first_burst_size); 7413 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); 7414 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 7415 lpfc_max_luns_init(vport, lpfc_max_luns); 7416 lpfc_scan_down_init(vport, lpfc_scan_down); 7417 lpfc_enable_da_id_init(vport, lpfc_enable_da_id); 7418 return; 7419 } 7420