1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017-2018 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/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/module.h> 30 #include <linux/kthread.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/aer.h> 35 #include <linux/slab.h> 36 #include <linux/firmware.h> 37 #include <linux/miscdevice.h> 38 #include <linux/percpu.h> 39 #include <linux/msi.h> 40 #include <linux/bitops.h> 41 42 #include <scsi/scsi.h> 43 #include <scsi/scsi_device.h> 44 #include <scsi/scsi_host.h> 45 #include <scsi/scsi_transport_fc.h> 46 #include <scsi/scsi_tcq.h> 47 #include <scsi/fc/fc_fs.h> 48 49 #include <linux/nvme-fc-driver.h> 50 51 #include "lpfc_hw4.h" 52 #include "lpfc_hw.h" 53 #include "lpfc_sli.h" 54 #include "lpfc_sli4.h" 55 #include "lpfc_nl.h" 56 #include "lpfc_disc.h" 57 #include "lpfc.h" 58 #include "lpfc_scsi.h" 59 #include "lpfc_nvme.h" 60 #include "lpfc_nvmet.h" 61 #include "lpfc_logmsg.h" 62 #include "lpfc_crtn.h" 63 #include "lpfc_vport.h" 64 #include "lpfc_version.h" 65 #include "lpfc_ids.h" 66 67 char *_dump_buf_data; 68 unsigned long _dump_buf_data_order; 69 char *_dump_buf_dif; 70 unsigned long _dump_buf_dif_order; 71 spinlock_t _dump_buf_lock; 72 73 /* Used when mapping IRQ vectors in a driver centric manner */ 74 uint16_t *lpfc_used_cpu; 75 uint32_t lpfc_present_cpu; 76 77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 78 static int lpfc_post_rcv_buf(struct lpfc_hba *); 79 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 81 static int lpfc_setup_endian_order(struct lpfc_hba *); 82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 83 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 85 static void lpfc_init_sgl_list(struct lpfc_hba *); 86 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 87 static void lpfc_free_active_sgl(struct lpfc_hba *); 88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 93 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 96 97 static struct scsi_transport_template *lpfc_transport_template = NULL; 98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 99 static DEFINE_IDR(lpfc_hba_index); 100 #define LPFC_NVMET_BUF_POST 254 101 102 /** 103 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 104 * @phba: pointer to lpfc hba data structure. 105 * 106 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 107 * mailbox command. It retrieves the revision information from the HBA and 108 * collects the Vital Product Data (VPD) about the HBA for preparing the 109 * configuration of the HBA. 110 * 111 * Return codes: 112 * 0 - success. 113 * -ERESTART - requests the SLI layer to reset the HBA and try again. 114 * Any other value - indicates an error. 115 **/ 116 int 117 lpfc_config_port_prep(struct lpfc_hba *phba) 118 { 119 lpfc_vpd_t *vp = &phba->vpd; 120 int i = 0, rc; 121 LPFC_MBOXQ_t *pmb; 122 MAILBOX_t *mb; 123 char *lpfc_vpd_data = NULL; 124 uint16_t offset = 0; 125 static char licensed[56] = 126 "key unlock for use with gnu public licensed code only\0"; 127 static int init_key = 1; 128 129 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 130 if (!pmb) { 131 phba->link_state = LPFC_HBA_ERROR; 132 return -ENOMEM; 133 } 134 135 mb = &pmb->u.mb; 136 phba->link_state = LPFC_INIT_MBX_CMDS; 137 138 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 139 if (init_key) { 140 uint32_t *ptext = (uint32_t *) licensed; 141 142 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 143 *ptext = cpu_to_be32(*ptext); 144 init_key = 0; 145 } 146 147 lpfc_read_nv(phba, pmb); 148 memset((char*)mb->un.varRDnvp.rsvd3, 0, 149 sizeof (mb->un.varRDnvp.rsvd3)); 150 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 151 sizeof (licensed)); 152 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 155 if (rc != MBX_SUCCESS) { 156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 157 "0324 Config Port initialization " 158 "error, mbxCmd x%x READ_NVPARM, " 159 "mbxStatus x%x\n", 160 mb->mbxCommand, mb->mbxStatus); 161 mempool_free(pmb, phba->mbox_mem_pool); 162 return -ERESTART; 163 } 164 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 165 sizeof(phba->wwnn)); 166 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 167 sizeof(phba->wwpn)); 168 } 169 170 /* 171 * Clear all option bits except LPFC_SLI3_BG_ENABLED, 172 * which was already set in lpfc_get_cfgparam() 173 */ 174 phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED; 175 176 /* Setup and issue mailbox READ REV command */ 177 lpfc_read_rev(phba, pmb); 178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 179 if (rc != MBX_SUCCESS) { 180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 181 "0439 Adapter failed to init, mbxCmd x%x " 182 "READ_REV, mbxStatus x%x\n", 183 mb->mbxCommand, mb->mbxStatus); 184 mempool_free( pmb, phba->mbox_mem_pool); 185 return -ERESTART; 186 } 187 188 189 /* 190 * The value of rr must be 1 since the driver set the cv field to 1. 191 * This setting requires the FW to set all revision fields. 192 */ 193 if (mb->un.varRdRev.rr == 0) { 194 vp->rev.rBit = 0; 195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 196 "0440 Adapter failed to init, READ_REV has " 197 "missing revision information.\n"); 198 mempool_free(pmb, phba->mbox_mem_pool); 199 return -ERESTART; 200 } 201 202 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 203 mempool_free(pmb, phba->mbox_mem_pool); 204 return -EINVAL; 205 } 206 207 /* Save information as VPD data */ 208 vp->rev.rBit = 1; 209 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 210 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 211 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 212 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 213 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 214 vp->rev.biuRev = mb->un.varRdRev.biuRev; 215 vp->rev.smRev = mb->un.varRdRev.smRev; 216 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 217 vp->rev.endecRev = mb->un.varRdRev.endecRev; 218 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 219 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 220 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 221 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 222 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 223 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 224 225 /* If the sli feature level is less then 9, we must 226 * tear down all RPIs and VPIs on link down if NPIV 227 * is enabled. 228 */ 229 if (vp->rev.feaLevelHigh < 9) 230 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 231 232 if (lpfc_is_LC_HBA(phba->pcidev->device)) 233 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 234 sizeof (phba->RandomData)); 235 236 /* Get adapter VPD information */ 237 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 238 if (!lpfc_vpd_data) 239 goto out_free_mbox; 240 do { 241 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 242 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 243 244 if (rc != MBX_SUCCESS) { 245 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 246 "0441 VPD not present on adapter, " 247 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 248 mb->mbxCommand, mb->mbxStatus); 249 mb->un.varDmp.word_cnt = 0; 250 } 251 /* dump mem may return a zero when finished or we got a 252 * mailbox error, either way we are done. 253 */ 254 if (mb->un.varDmp.word_cnt == 0) 255 break; 256 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 257 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 258 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 259 lpfc_vpd_data + offset, 260 mb->un.varDmp.word_cnt); 261 offset += mb->un.varDmp.word_cnt; 262 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 263 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 264 265 kfree(lpfc_vpd_data); 266 out_free_mbox: 267 mempool_free(pmb, phba->mbox_mem_pool); 268 return 0; 269 } 270 271 /** 272 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 273 * @phba: pointer to lpfc hba data structure. 274 * @pmboxq: pointer to the driver internal queue element for mailbox command. 275 * 276 * This is the completion handler for driver's configuring asynchronous event 277 * mailbox command to the device. If the mailbox command returns successfully, 278 * it will set internal async event support flag to 1; otherwise, it will 279 * set internal async event support flag to 0. 280 **/ 281 static void 282 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 283 { 284 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 285 phba->temp_sensor_support = 1; 286 else 287 phba->temp_sensor_support = 0; 288 mempool_free(pmboxq, phba->mbox_mem_pool); 289 return; 290 } 291 292 /** 293 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 294 * @phba: pointer to lpfc hba data structure. 295 * @pmboxq: pointer to the driver internal queue element for mailbox command. 296 * 297 * This is the completion handler for dump mailbox command for getting 298 * wake up parameters. When this command complete, the response contain 299 * Option rom version of the HBA. This function translate the version number 300 * into a human readable string and store it in OptionROMVersion. 301 **/ 302 static void 303 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 304 { 305 struct prog_id *prg; 306 uint32_t prog_id_word; 307 char dist = ' '; 308 /* character array used for decoding dist type. */ 309 char dist_char[] = "nabx"; 310 311 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 312 mempool_free(pmboxq, phba->mbox_mem_pool); 313 return; 314 } 315 316 prg = (struct prog_id *) &prog_id_word; 317 318 /* word 7 contain option rom version */ 319 prog_id_word = pmboxq->u.mb.un.varWords[7]; 320 321 /* Decode the Option rom version word to a readable string */ 322 if (prg->dist < 4) 323 dist = dist_char[prg->dist]; 324 325 if ((prg->dist == 3) && (prg->num == 0)) 326 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 327 prg->ver, prg->rev, prg->lev); 328 else 329 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 330 prg->ver, prg->rev, prg->lev, 331 dist, prg->num); 332 mempool_free(pmboxq, phba->mbox_mem_pool); 333 return; 334 } 335 336 /** 337 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 338 * cfg_soft_wwnn, cfg_soft_wwpn 339 * @vport: pointer to lpfc vport data structure. 340 * 341 * 342 * Return codes 343 * None. 344 **/ 345 void 346 lpfc_update_vport_wwn(struct lpfc_vport *vport) 347 { 348 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 349 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; 350 351 /* If the soft name exists then update it using the service params */ 352 if (vport->phba->cfg_soft_wwnn) 353 u64_to_wwn(vport->phba->cfg_soft_wwnn, 354 vport->fc_sparam.nodeName.u.wwn); 355 if (vport->phba->cfg_soft_wwpn) 356 u64_to_wwn(vport->phba->cfg_soft_wwpn, 357 vport->fc_sparam.portName.u.wwn); 358 359 /* 360 * If the name is empty or there exists a soft name 361 * then copy the service params name, otherwise use the fc name 362 */ 363 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 364 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 365 sizeof(struct lpfc_name)); 366 else 367 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 368 sizeof(struct lpfc_name)); 369 370 /* 371 * If the port name has changed, then set the Param changes flag 372 * to unreg the login 373 */ 374 if (vport->fc_portname.u.wwn[0] != 0 && 375 memcmp(&vport->fc_portname, &vport->fc_sparam.portName, 376 sizeof(struct lpfc_name))) 377 vport->vport_flag |= FAWWPN_PARAM_CHG; 378 379 if (vport->fc_portname.u.wwn[0] == 0 || 380 vport->phba->cfg_soft_wwpn || 381 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || 382 vport->vport_flag & FAWWPN_SET) { 383 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 384 sizeof(struct lpfc_name)); 385 vport->vport_flag &= ~FAWWPN_SET; 386 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) 387 vport->vport_flag |= FAWWPN_SET; 388 } 389 else 390 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 391 sizeof(struct lpfc_name)); 392 } 393 394 /** 395 * lpfc_config_port_post - Perform lpfc initialization after config port 396 * @phba: pointer to lpfc hba data structure. 397 * 398 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 399 * command call. It performs all internal resource and state setups on the 400 * port: post IOCB buffers, enable appropriate host interrupt attentions, 401 * ELS ring timers, etc. 402 * 403 * Return codes 404 * 0 - success. 405 * Any other value - error. 406 **/ 407 int 408 lpfc_config_port_post(struct lpfc_hba *phba) 409 { 410 struct lpfc_vport *vport = phba->pport; 411 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 412 LPFC_MBOXQ_t *pmb; 413 MAILBOX_t *mb; 414 struct lpfc_dmabuf *mp; 415 struct lpfc_sli *psli = &phba->sli; 416 uint32_t status, timeout; 417 int i, j; 418 int rc; 419 420 spin_lock_irq(&phba->hbalock); 421 /* 422 * If the Config port completed correctly the HBA is not 423 * over heated any more. 424 */ 425 if (phba->over_temp_state == HBA_OVER_TEMP) 426 phba->over_temp_state = HBA_NORMAL_TEMP; 427 spin_unlock_irq(&phba->hbalock); 428 429 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 430 if (!pmb) { 431 phba->link_state = LPFC_HBA_ERROR; 432 return -ENOMEM; 433 } 434 mb = &pmb->u.mb; 435 436 /* Get login parameters for NID. */ 437 rc = lpfc_read_sparam(phba, pmb, 0); 438 if (rc) { 439 mempool_free(pmb, phba->mbox_mem_pool); 440 return -ENOMEM; 441 } 442 443 pmb->vport = vport; 444 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 446 "0448 Adapter failed init, mbxCmd x%x " 447 "READ_SPARM mbxStatus x%x\n", 448 mb->mbxCommand, mb->mbxStatus); 449 phba->link_state = LPFC_HBA_ERROR; 450 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 451 mempool_free(pmb, phba->mbox_mem_pool); 452 lpfc_mbuf_free(phba, mp->virt, mp->phys); 453 kfree(mp); 454 return -EIO; 455 } 456 457 mp = (struct lpfc_dmabuf *)pmb->ctx_buf; 458 459 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 460 lpfc_mbuf_free(phba, mp->virt, mp->phys); 461 kfree(mp); 462 pmb->ctx_buf = NULL; 463 lpfc_update_vport_wwn(vport); 464 465 /* Update the fc_host data structures with new wwn. */ 466 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 467 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 468 fc_host_max_npiv_vports(shost) = phba->max_vpi; 469 470 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 471 /* This should be consolidated into parse_vpd ? - mr */ 472 if (phba->SerialNumber[0] == 0) { 473 uint8_t *outptr; 474 475 outptr = &vport->fc_nodename.u.s.IEEE[0]; 476 for (i = 0; i < 12; i++) { 477 status = *outptr++; 478 j = ((status & 0xf0) >> 4); 479 if (j <= 9) 480 phba->SerialNumber[i] = 481 (char)((uint8_t) 0x30 + (uint8_t) j); 482 else 483 phba->SerialNumber[i] = 484 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 485 i++; 486 j = (status & 0xf); 487 if (j <= 9) 488 phba->SerialNumber[i] = 489 (char)((uint8_t) 0x30 + (uint8_t) j); 490 else 491 phba->SerialNumber[i] = 492 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 493 } 494 } 495 496 lpfc_read_config(phba, pmb); 497 pmb->vport = vport; 498 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 500 "0453 Adapter failed to init, mbxCmd x%x " 501 "READ_CONFIG, mbxStatus x%x\n", 502 mb->mbxCommand, mb->mbxStatus); 503 phba->link_state = LPFC_HBA_ERROR; 504 mempool_free( pmb, phba->mbox_mem_pool); 505 return -EIO; 506 } 507 508 /* Check if the port is disabled */ 509 lpfc_sli_read_link_ste(phba); 510 511 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 512 i = (mb->un.varRdConfig.max_xri + 1); 513 if (phba->cfg_hba_queue_depth > i) { 514 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 515 "3359 HBA queue depth changed from %d to %d\n", 516 phba->cfg_hba_queue_depth, i); 517 phba->cfg_hba_queue_depth = i; 518 } 519 520 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 521 i = (mb->un.varRdConfig.max_xri >> 3); 522 if (phba->pport->cfg_lun_queue_depth > i) { 523 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 524 "3360 LUN queue depth changed from %d to %d\n", 525 phba->pport->cfg_lun_queue_depth, i); 526 phba->pport->cfg_lun_queue_depth = i; 527 } 528 529 phba->lmt = mb->un.varRdConfig.lmt; 530 531 /* Get the default values for Model Name and Description */ 532 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 533 534 phba->link_state = LPFC_LINK_DOWN; 535 536 /* Only process IOCBs on ELS ring till hba_state is READY */ 537 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 538 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 539 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 540 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 541 542 /* Post receive buffers for desired rings */ 543 if (phba->sli_rev != 3) 544 lpfc_post_rcv_buf(phba); 545 546 /* 547 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 548 */ 549 if (phba->intr_type == MSIX) { 550 rc = lpfc_config_msi(phba, pmb); 551 if (rc) { 552 mempool_free(pmb, phba->mbox_mem_pool); 553 return -EIO; 554 } 555 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 556 if (rc != MBX_SUCCESS) { 557 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 558 "0352 Config MSI mailbox command " 559 "failed, mbxCmd x%x, mbxStatus x%x\n", 560 pmb->u.mb.mbxCommand, 561 pmb->u.mb.mbxStatus); 562 mempool_free(pmb, phba->mbox_mem_pool); 563 return -EIO; 564 } 565 } 566 567 spin_lock_irq(&phba->hbalock); 568 /* Initialize ERATT handling flag */ 569 phba->hba_flag &= ~HBA_ERATT_HANDLED; 570 571 /* Enable appropriate host interrupts */ 572 if (lpfc_readl(phba->HCregaddr, &status)) { 573 spin_unlock_irq(&phba->hbalock); 574 return -EIO; 575 } 576 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 577 if (psli->num_rings > 0) 578 status |= HC_R0INT_ENA; 579 if (psli->num_rings > 1) 580 status |= HC_R1INT_ENA; 581 if (psli->num_rings > 2) 582 status |= HC_R2INT_ENA; 583 if (psli->num_rings > 3) 584 status |= HC_R3INT_ENA; 585 586 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 587 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 588 status &= ~(HC_R0INT_ENA); 589 590 writel(status, phba->HCregaddr); 591 readl(phba->HCregaddr); /* flush */ 592 spin_unlock_irq(&phba->hbalock); 593 594 /* Set up ring-0 (ELS) timer */ 595 timeout = phba->fc_ratov * 2; 596 mod_timer(&vport->els_tmofunc, 597 jiffies + msecs_to_jiffies(1000 * timeout)); 598 /* Set up heart beat (HB) timer */ 599 mod_timer(&phba->hb_tmofunc, 600 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 601 phba->hb_outstanding = 0; 602 phba->last_completion_time = jiffies; 603 /* Set up error attention (ERATT) polling timer */ 604 mod_timer(&phba->eratt_poll, 605 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 606 607 if (phba->hba_flag & LINK_DISABLED) { 608 lpfc_printf_log(phba, 609 KERN_ERR, LOG_INIT, 610 "2598 Adapter Link is disabled.\n"); 611 lpfc_down_link(phba, pmb); 612 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 613 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 614 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 615 lpfc_printf_log(phba, 616 KERN_ERR, LOG_INIT, 617 "2599 Adapter failed to issue DOWN_LINK" 618 " mbox command rc 0x%x\n", rc); 619 620 mempool_free(pmb, phba->mbox_mem_pool); 621 return -EIO; 622 } 623 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 624 mempool_free(pmb, phba->mbox_mem_pool); 625 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 626 if (rc) 627 return rc; 628 } 629 /* MBOX buffer will be freed in mbox compl */ 630 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 631 if (!pmb) { 632 phba->link_state = LPFC_HBA_ERROR; 633 return -ENOMEM; 634 } 635 636 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 637 pmb->mbox_cmpl = lpfc_config_async_cmpl; 638 pmb->vport = phba->pport; 639 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 640 641 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 642 lpfc_printf_log(phba, 643 KERN_ERR, 644 LOG_INIT, 645 "0456 Adapter failed to issue " 646 "ASYNCEVT_ENABLE mbox status x%x\n", 647 rc); 648 mempool_free(pmb, phba->mbox_mem_pool); 649 } 650 651 /* Get Option rom version */ 652 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 653 if (!pmb) { 654 phba->link_state = LPFC_HBA_ERROR; 655 return -ENOMEM; 656 } 657 658 lpfc_dump_wakeup_param(phba, pmb); 659 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 660 pmb->vport = phba->pport; 661 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 662 663 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 665 "to get Option ROM version status x%x\n", rc); 666 mempool_free(pmb, phba->mbox_mem_pool); 667 } 668 669 return 0; 670 } 671 672 /** 673 * lpfc_hba_init_link - Initialize the FC link 674 * @phba: pointer to lpfc hba data structure. 675 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 676 * 677 * This routine will issue the INIT_LINK mailbox command call. 678 * It is available to other drivers through the lpfc_hba data 679 * structure for use as a delayed link up mechanism with the 680 * module parameter lpfc_suppress_link_up. 681 * 682 * Return code 683 * 0 - success 684 * Any other value - error 685 **/ 686 static int 687 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 688 { 689 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 690 } 691 692 /** 693 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 694 * @phba: pointer to lpfc hba data structure. 695 * @fc_topology: desired fc topology. 696 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 697 * 698 * This routine will issue the INIT_LINK mailbox command call. 699 * It is available to other drivers through the lpfc_hba data 700 * structure for use as a delayed link up mechanism with the 701 * module parameter lpfc_suppress_link_up. 702 * 703 * Return code 704 * 0 - success 705 * Any other value - error 706 **/ 707 int 708 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 709 uint32_t flag) 710 { 711 struct lpfc_vport *vport = phba->pport; 712 LPFC_MBOXQ_t *pmb; 713 MAILBOX_t *mb; 714 int rc; 715 716 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 717 if (!pmb) { 718 phba->link_state = LPFC_HBA_ERROR; 719 return -ENOMEM; 720 } 721 mb = &pmb->u.mb; 722 pmb->vport = vport; 723 724 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 725 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 726 !(phba->lmt & LMT_1Gb)) || 727 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 728 !(phba->lmt & LMT_2Gb)) || 729 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 730 !(phba->lmt & LMT_4Gb)) || 731 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 732 !(phba->lmt & LMT_8Gb)) || 733 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 734 !(phba->lmt & LMT_10Gb)) || 735 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 736 !(phba->lmt & LMT_16Gb)) || 737 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 738 !(phba->lmt & LMT_32Gb)) || 739 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) && 740 !(phba->lmt & LMT_64Gb))) { 741 /* Reset link speed to auto */ 742 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 743 "1302 Invalid speed for this board:%d " 744 "Reset link speed to auto.\n", 745 phba->cfg_link_speed); 746 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 747 } 748 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 749 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 750 if (phba->sli_rev < LPFC_SLI_REV4) 751 lpfc_set_loopback_flag(phba); 752 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 753 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 755 "0498 Adapter failed to init, mbxCmd x%x " 756 "INIT_LINK, mbxStatus x%x\n", 757 mb->mbxCommand, mb->mbxStatus); 758 if (phba->sli_rev <= LPFC_SLI_REV3) { 759 /* Clear all interrupt enable conditions */ 760 writel(0, phba->HCregaddr); 761 readl(phba->HCregaddr); /* flush */ 762 /* Clear all pending interrupts */ 763 writel(0xffffffff, phba->HAregaddr); 764 readl(phba->HAregaddr); /* flush */ 765 } 766 phba->link_state = LPFC_HBA_ERROR; 767 if (rc != MBX_BUSY || flag == MBX_POLL) 768 mempool_free(pmb, phba->mbox_mem_pool); 769 return -EIO; 770 } 771 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 772 if (flag == MBX_POLL) 773 mempool_free(pmb, phba->mbox_mem_pool); 774 775 return 0; 776 } 777 778 /** 779 * lpfc_hba_down_link - this routine downs the FC link 780 * @phba: pointer to lpfc hba data structure. 781 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 782 * 783 * This routine will issue the DOWN_LINK mailbox command call. 784 * It is available to other drivers through the lpfc_hba data 785 * structure for use to stop the link. 786 * 787 * Return code 788 * 0 - success 789 * Any other value - error 790 **/ 791 static int 792 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 793 { 794 LPFC_MBOXQ_t *pmb; 795 int rc; 796 797 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 798 if (!pmb) { 799 phba->link_state = LPFC_HBA_ERROR; 800 return -ENOMEM; 801 } 802 803 lpfc_printf_log(phba, 804 KERN_ERR, LOG_INIT, 805 "0491 Adapter Link is disabled.\n"); 806 lpfc_down_link(phba, pmb); 807 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 808 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 809 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 810 lpfc_printf_log(phba, 811 KERN_ERR, LOG_INIT, 812 "2522 Adapter failed to issue DOWN_LINK" 813 " mbox command rc 0x%x\n", rc); 814 815 mempool_free(pmb, phba->mbox_mem_pool); 816 return -EIO; 817 } 818 if (flag == MBX_POLL) 819 mempool_free(pmb, phba->mbox_mem_pool); 820 821 return 0; 822 } 823 824 /** 825 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 826 * @phba: pointer to lpfc HBA data structure. 827 * 828 * This routine will do LPFC uninitialization before the HBA is reset when 829 * bringing down the SLI Layer. 830 * 831 * Return codes 832 * 0 - success. 833 * Any other value - error. 834 **/ 835 int 836 lpfc_hba_down_prep(struct lpfc_hba *phba) 837 { 838 struct lpfc_vport **vports; 839 int i; 840 841 if (phba->sli_rev <= LPFC_SLI_REV3) { 842 /* Disable interrupts */ 843 writel(0, phba->HCregaddr); 844 readl(phba->HCregaddr); /* flush */ 845 } 846 847 if (phba->pport->load_flag & FC_UNLOADING) 848 lpfc_cleanup_discovery_resources(phba->pport); 849 else { 850 vports = lpfc_create_vport_work_array(phba); 851 if (vports != NULL) 852 for (i = 0; i <= phba->max_vports && 853 vports[i] != NULL; i++) 854 lpfc_cleanup_discovery_resources(vports[i]); 855 lpfc_destroy_vport_work_array(phba, vports); 856 } 857 return 0; 858 } 859 860 /** 861 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 862 * rspiocb which got deferred 863 * 864 * @phba: pointer to lpfc HBA data structure. 865 * 866 * This routine will cleanup completed slow path events after HBA is reset 867 * when bringing down the SLI Layer. 868 * 869 * 870 * Return codes 871 * void. 872 **/ 873 static void 874 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 875 { 876 struct lpfc_iocbq *rspiocbq; 877 struct hbq_dmabuf *dmabuf; 878 struct lpfc_cq_event *cq_event; 879 880 spin_lock_irq(&phba->hbalock); 881 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 882 spin_unlock_irq(&phba->hbalock); 883 884 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 885 /* Get the response iocb from the head of work queue */ 886 spin_lock_irq(&phba->hbalock); 887 list_remove_head(&phba->sli4_hba.sp_queue_event, 888 cq_event, struct lpfc_cq_event, list); 889 spin_unlock_irq(&phba->hbalock); 890 891 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 892 case CQE_CODE_COMPL_WQE: 893 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 894 cq_event); 895 lpfc_sli_release_iocbq(phba, rspiocbq); 896 break; 897 case CQE_CODE_RECEIVE: 898 case CQE_CODE_RECEIVE_V1: 899 dmabuf = container_of(cq_event, struct hbq_dmabuf, 900 cq_event); 901 lpfc_in_buf_free(phba, &dmabuf->dbuf); 902 } 903 } 904 } 905 906 /** 907 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 908 * @phba: pointer to lpfc HBA data structure. 909 * 910 * This routine will cleanup posted ELS buffers after the HBA is reset 911 * when bringing down the SLI Layer. 912 * 913 * 914 * Return codes 915 * void. 916 **/ 917 static void 918 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 919 { 920 struct lpfc_sli *psli = &phba->sli; 921 struct lpfc_sli_ring *pring; 922 struct lpfc_dmabuf *mp, *next_mp; 923 LIST_HEAD(buflist); 924 int count; 925 926 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 927 lpfc_sli_hbqbuf_free_all(phba); 928 else { 929 /* Cleanup preposted buffers on the ELS ring */ 930 pring = &psli->sli3_ring[LPFC_ELS_RING]; 931 spin_lock_irq(&phba->hbalock); 932 list_splice_init(&pring->postbufq, &buflist); 933 spin_unlock_irq(&phba->hbalock); 934 935 count = 0; 936 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 937 list_del(&mp->list); 938 count++; 939 lpfc_mbuf_free(phba, mp->virt, mp->phys); 940 kfree(mp); 941 } 942 943 spin_lock_irq(&phba->hbalock); 944 pring->postbufq_cnt -= count; 945 spin_unlock_irq(&phba->hbalock); 946 } 947 } 948 949 /** 950 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 951 * @phba: pointer to lpfc HBA data structure. 952 * 953 * This routine will cleanup the txcmplq after the HBA is reset when bringing 954 * down the SLI Layer. 955 * 956 * Return codes 957 * void 958 **/ 959 static void 960 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 961 { 962 struct lpfc_sli *psli = &phba->sli; 963 struct lpfc_queue *qp = NULL; 964 struct lpfc_sli_ring *pring; 965 LIST_HEAD(completions); 966 int i; 967 struct lpfc_iocbq *piocb, *next_iocb; 968 969 if (phba->sli_rev != LPFC_SLI_REV4) { 970 for (i = 0; i < psli->num_rings; i++) { 971 pring = &psli->sli3_ring[i]; 972 spin_lock_irq(&phba->hbalock); 973 /* At this point in time the HBA is either reset or DOA 974 * Nothing should be on txcmplq as it will 975 * NEVER complete. 976 */ 977 list_splice_init(&pring->txcmplq, &completions); 978 pring->txcmplq_cnt = 0; 979 spin_unlock_irq(&phba->hbalock); 980 981 lpfc_sli_abort_iocb_ring(phba, pring); 982 } 983 /* Cancel all the IOCBs from the completions list */ 984 lpfc_sli_cancel_iocbs(phba, &completions, 985 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 986 return; 987 } 988 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 989 pring = qp->pring; 990 if (!pring) 991 continue; 992 spin_lock_irq(&pring->ring_lock); 993 list_for_each_entry_safe(piocb, next_iocb, 994 &pring->txcmplq, list) 995 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; 996 list_splice_init(&pring->txcmplq, &completions); 997 pring->txcmplq_cnt = 0; 998 spin_unlock_irq(&pring->ring_lock); 999 lpfc_sli_abort_iocb_ring(phba, pring); 1000 } 1001 /* Cancel all the IOCBs from the completions list */ 1002 lpfc_sli_cancel_iocbs(phba, &completions, 1003 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 1004 } 1005 1006 /** 1007 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 1008 int i; 1009 * @phba: pointer to lpfc HBA data structure. 1010 * 1011 * This routine will do uninitialization after the HBA is reset when bring 1012 * down the SLI Layer. 1013 * 1014 * Return codes 1015 * 0 - success. 1016 * Any other value - error. 1017 **/ 1018 static int 1019 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1020 { 1021 lpfc_hba_free_post_buf(phba); 1022 lpfc_hba_clean_txcmplq(phba); 1023 return 0; 1024 } 1025 1026 /** 1027 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1028 * @phba: pointer to lpfc HBA data structure. 1029 * 1030 * This routine will do uninitialization after the HBA is reset when bring 1031 * down the SLI Layer. 1032 * 1033 * Return codes 1034 * 0 - success. 1035 * Any other value - error. 1036 **/ 1037 static int 1038 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1039 { 1040 struct lpfc_scsi_buf *psb, *psb_next; 1041 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1042 LIST_HEAD(aborts); 1043 LIST_HEAD(nvme_aborts); 1044 LIST_HEAD(nvmet_aborts); 1045 unsigned long iflag = 0; 1046 struct lpfc_sglq *sglq_entry = NULL; 1047 int cnt; 1048 1049 1050 lpfc_sli_hbqbuf_free_all(phba); 1051 lpfc_hba_clean_txcmplq(phba); 1052 1053 /* At this point in time the HBA is either reset or DOA. Either 1054 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1055 * on the lpfc_els_sgl_list so that it can either be freed if the 1056 * driver is unloading or reposted if the driver is restarting 1057 * the port. 1058 */ 1059 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1060 /* scsl_buf_list */ 1061 /* sgl_list_lock required because worker thread uses this 1062 * list. 1063 */ 1064 spin_lock(&phba->sli4_hba.sgl_list_lock); 1065 list_for_each_entry(sglq_entry, 1066 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1067 sglq_entry->state = SGL_FREED; 1068 1069 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1070 &phba->sli4_hba.lpfc_els_sgl_list); 1071 1072 1073 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1074 /* abts_scsi_buf_list_lock required because worker thread uses this 1075 * list. 1076 */ 1077 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1078 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1079 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1080 &aborts); 1081 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1082 } 1083 1084 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1085 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1086 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1087 &nvme_aborts); 1088 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1089 &nvmet_aborts); 1090 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1091 } 1092 1093 spin_unlock_irq(&phba->hbalock); 1094 1095 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1096 psb->pCmd = NULL; 1097 psb->status = IOSTAT_SUCCESS; 1098 } 1099 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1100 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1101 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1102 1103 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1104 cnt = 0; 1105 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1106 psb->pCmd = NULL; 1107 psb->status = IOSTAT_SUCCESS; 1108 cnt++; 1109 } 1110 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1111 phba->put_nvme_bufs += cnt; 1112 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1113 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1114 1115 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1116 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1117 lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); 1118 } 1119 } 1120 1121 lpfc_sli4_free_sp_events(phba); 1122 return 0; 1123 } 1124 1125 /** 1126 * lpfc_hba_down_post - Wrapper func for hba down post routine 1127 * @phba: pointer to lpfc HBA data structure. 1128 * 1129 * This routine wraps the actual SLI3 or SLI4 routine for performing 1130 * uninitialization after the HBA is reset when bring down the SLI Layer. 1131 * 1132 * Return codes 1133 * 0 - success. 1134 * Any other value - error. 1135 **/ 1136 int 1137 lpfc_hba_down_post(struct lpfc_hba *phba) 1138 { 1139 return (*phba->lpfc_hba_down_post)(phba); 1140 } 1141 1142 /** 1143 * lpfc_hb_timeout - The HBA-timer timeout handler 1144 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1145 * 1146 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1147 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1148 * work-port-events bitmap and the worker thread is notified. This timeout 1149 * event will be used by the worker thread to invoke the actual timeout 1150 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1151 * be performed in the timeout handler and the HBA timeout event bit shall 1152 * be cleared by the worker thread after it has taken the event bitmap out. 1153 **/ 1154 static void 1155 lpfc_hb_timeout(struct timer_list *t) 1156 { 1157 struct lpfc_hba *phba; 1158 uint32_t tmo_posted; 1159 unsigned long iflag; 1160 1161 phba = from_timer(phba, t, hb_tmofunc); 1162 1163 /* Check for heart beat timeout conditions */ 1164 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1165 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1166 if (!tmo_posted) 1167 phba->pport->work_port_events |= WORKER_HB_TMO; 1168 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1169 1170 /* Tell the worker thread there is work to do */ 1171 if (!tmo_posted) 1172 lpfc_worker_wake_up(phba); 1173 return; 1174 } 1175 1176 /** 1177 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1178 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1179 * 1180 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1181 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1182 * work-port-events bitmap and the worker thread is notified. This timeout 1183 * event will be used by the worker thread to invoke the actual timeout 1184 * handler routine, lpfc_rrq_handler. Any periodical operations will 1185 * be performed in the timeout handler and the RRQ timeout event bit shall 1186 * be cleared by the worker thread after it has taken the event bitmap out. 1187 **/ 1188 static void 1189 lpfc_rrq_timeout(struct timer_list *t) 1190 { 1191 struct lpfc_hba *phba; 1192 unsigned long iflag; 1193 1194 phba = from_timer(phba, t, rrq_tmr); 1195 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1196 if (!(phba->pport->load_flag & FC_UNLOADING)) 1197 phba->hba_flag |= HBA_RRQ_ACTIVE; 1198 else 1199 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1200 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1201 1202 if (!(phba->pport->load_flag & FC_UNLOADING)) 1203 lpfc_worker_wake_up(phba); 1204 } 1205 1206 /** 1207 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1208 * @phba: pointer to lpfc hba data structure. 1209 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1210 * 1211 * This is the callback function to the lpfc heart-beat mailbox command. 1212 * If configured, the lpfc driver issues the heart-beat mailbox command to 1213 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1214 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1215 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1216 * heart-beat outstanding state. Once the mailbox command comes back and 1217 * no error conditions detected, the heart-beat mailbox command timer is 1218 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1219 * state is cleared for the next heart-beat. If the timer expired with the 1220 * heart-beat outstanding state set, the driver will put the HBA offline. 1221 **/ 1222 static void 1223 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1224 { 1225 unsigned long drvr_flag; 1226 1227 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1228 phba->hb_outstanding = 0; 1229 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1230 1231 /* Check and reset heart-beat timer is necessary */ 1232 mempool_free(pmboxq, phba->mbox_mem_pool); 1233 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1234 !(phba->link_state == LPFC_HBA_ERROR) && 1235 !(phba->pport->load_flag & FC_UNLOADING)) 1236 mod_timer(&phba->hb_tmofunc, 1237 jiffies + 1238 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1239 return; 1240 } 1241 1242 /** 1243 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1244 * @phba: pointer to lpfc hba data structure. 1245 * 1246 * This is the actual HBA-timer timeout handler to be invoked by the worker 1247 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1248 * handler performs any periodic operations needed for the device. If such 1249 * periodic event has already been attended to either in the interrupt handler 1250 * or by processing slow-ring or fast-ring events within the HBA-timer 1251 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1252 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1253 * is configured and there is no heart-beat mailbox command outstanding, a 1254 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1255 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1256 * to offline. 1257 **/ 1258 void 1259 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1260 { 1261 struct lpfc_vport **vports; 1262 LPFC_MBOXQ_t *pmboxq; 1263 struct lpfc_dmabuf *buf_ptr; 1264 int retval, i; 1265 struct lpfc_sli *psli = &phba->sli; 1266 LIST_HEAD(completions); 1267 struct lpfc_queue *qp; 1268 unsigned long time_elapsed; 1269 uint32_t tick_cqe, max_cqe, val; 1270 uint64_t tot, data1, data2, data3; 1271 struct lpfc_nvmet_tgtport *tgtp; 1272 struct lpfc_register reg_data; 1273 struct nvme_fc_local_port *localport; 1274 struct lpfc_nvme_lport *lport; 1275 struct lpfc_nvme_ctrl_stat *cstat; 1276 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; 1277 1278 vports = lpfc_create_vport_work_array(phba); 1279 if (vports != NULL) 1280 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1281 lpfc_rcv_seq_check_edtov(vports[i]); 1282 lpfc_fdmi_num_disc_check(vports[i]); 1283 } 1284 lpfc_destroy_vport_work_array(phba, vports); 1285 1286 if ((phba->link_state == LPFC_HBA_ERROR) || 1287 (phba->pport->load_flag & FC_UNLOADING) || 1288 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1289 return; 1290 1291 if (phba->cfg_auto_imax) { 1292 if (!phba->last_eqdelay_time) { 1293 phba->last_eqdelay_time = jiffies; 1294 goto skip_eqdelay; 1295 } 1296 time_elapsed = jiffies - phba->last_eqdelay_time; 1297 phba->last_eqdelay_time = jiffies; 1298 1299 tot = 0xffff; 1300 /* Check outstanding IO count */ 1301 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1302 if (phba->nvmet_support) { 1303 tgtp = phba->targetport->private; 1304 /* Calculate outstanding IOs */ 1305 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); 1306 tot += atomic_read(&tgtp->xmt_fcp_release); 1307 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; 1308 } else { 1309 localport = phba->pport->localport; 1310 if (!localport || !localport->private) 1311 goto skip_eqdelay; 1312 lport = (struct lpfc_nvme_lport *) 1313 localport->private; 1314 tot = 0; 1315 for (i = 0; 1316 i < phba->cfg_nvme_io_channel; i++) { 1317 cstat = &lport->cstat[i]; 1318 data1 = atomic_read( 1319 &cstat->fc4NvmeInputRequests); 1320 data2 = atomic_read( 1321 &cstat->fc4NvmeOutputRequests); 1322 data3 = atomic_read( 1323 &cstat->fc4NvmeControlRequests); 1324 tot += (data1 + data2 + data3); 1325 tot -= atomic_read( 1326 &cstat->fc4NvmeIoCmpls); 1327 } 1328 } 1329 } 1330 1331 /* Interrupts per sec per EQ */ 1332 val = phba->cfg_fcp_imax / phba->io_channel_irqs; 1333 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */ 1334 1335 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */ 1336 max_cqe = time_elapsed * tick_cqe; 1337 1338 for (i = 0; i < phba->io_channel_irqs; i++) { 1339 /* Fast-path EQ */ 1340 qp = phba->sli4_hba.hba_eq[i]; 1341 if (!qp) 1342 continue; 1343 1344 /* Use no EQ delay if we don't have many outstanding 1345 * IOs, or if we are only processing 1 CQE/ISR or less. 1346 * Otherwise, assume we can process up to lpfc_fcp_imax 1347 * interrupts per HBA. 1348 */ 1349 if (tot < LPFC_NODELAY_MAX_IO || 1350 qp->EQ_cqe_cnt <= max_cqe) 1351 val = 0; 1352 else 1353 val = phba->cfg_fcp_imax; 1354 1355 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) { 1356 /* Use EQ Delay Register method */ 1357 1358 /* Convert for EQ Delay register */ 1359 if (val) { 1360 /* First, interrupts per sec per EQ */ 1361 val = phba->cfg_fcp_imax / 1362 phba->io_channel_irqs; 1363 1364 /* us delay between each interrupt */ 1365 val = LPFC_SEC_TO_USEC / val; 1366 } 1367 if (val != qp->q_mode) { 1368 reg_data.word0 = 0; 1369 bf_set(lpfc_sliport_eqdelay_id, 1370 ®_data, qp->queue_id); 1371 bf_set(lpfc_sliport_eqdelay_delay, 1372 ®_data, val); 1373 writel(reg_data.word0, eqdreg); 1374 } 1375 } else { 1376 /* Use mbox command method */ 1377 if (val != qp->q_mode) 1378 lpfc_modify_hba_eq_delay(phba, i, 1379 1, val); 1380 } 1381 1382 /* 1383 * val is cfg_fcp_imax or 0 for mbox delay or us delay 1384 * between interrupts for EQDR. 1385 */ 1386 qp->q_mode = val; 1387 qp->EQ_cqe_cnt = 0; 1388 } 1389 } 1390 1391 skip_eqdelay: 1392 spin_lock_irq(&phba->pport->work_port_lock); 1393 1394 if (time_after(phba->last_completion_time + 1395 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1396 jiffies)) { 1397 spin_unlock_irq(&phba->pport->work_port_lock); 1398 if (!phba->hb_outstanding) 1399 mod_timer(&phba->hb_tmofunc, 1400 jiffies + 1401 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1402 else 1403 mod_timer(&phba->hb_tmofunc, 1404 jiffies + 1405 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1406 return; 1407 } 1408 spin_unlock_irq(&phba->pport->work_port_lock); 1409 1410 if (phba->elsbuf_cnt && 1411 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1412 spin_lock_irq(&phba->hbalock); 1413 list_splice_init(&phba->elsbuf, &completions); 1414 phba->elsbuf_cnt = 0; 1415 phba->elsbuf_prev_cnt = 0; 1416 spin_unlock_irq(&phba->hbalock); 1417 1418 while (!list_empty(&completions)) { 1419 list_remove_head(&completions, buf_ptr, 1420 struct lpfc_dmabuf, list); 1421 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1422 kfree(buf_ptr); 1423 } 1424 } 1425 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1426 1427 /* If there is no heart beat outstanding, issue a heartbeat command */ 1428 if (phba->cfg_enable_hba_heartbeat) { 1429 if (!phba->hb_outstanding) { 1430 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1431 (list_empty(&psli->mboxq))) { 1432 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1433 GFP_KERNEL); 1434 if (!pmboxq) { 1435 mod_timer(&phba->hb_tmofunc, 1436 jiffies + 1437 msecs_to_jiffies(1000 * 1438 LPFC_HB_MBOX_INTERVAL)); 1439 return; 1440 } 1441 1442 lpfc_heart_beat(phba, pmboxq); 1443 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1444 pmboxq->vport = phba->pport; 1445 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1446 MBX_NOWAIT); 1447 1448 if (retval != MBX_BUSY && 1449 retval != MBX_SUCCESS) { 1450 mempool_free(pmboxq, 1451 phba->mbox_mem_pool); 1452 mod_timer(&phba->hb_tmofunc, 1453 jiffies + 1454 msecs_to_jiffies(1000 * 1455 LPFC_HB_MBOX_INTERVAL)); 1456 return; 1457 } 1458 phba->skipped_hb = 0; 1459 phba->hb_outstanding = 1; 1460 } else if (time_before_eq(phba->last_completion_time, 1461 phba->skipped_hb)) { 1462 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1463 "2857 Last completion time not " 1464 " updated in %d ms\n", 1465 jiffies_to_msecs(jiffies 1466 - phba->last_completion_time)); 1467 } else 1468 phba->skipped_hb = jiffies; 1469 1470 mod_timer(&phba->hb_tmofunc, 1471 jiffies + 1472 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1473 return; 1474 } else { 1475 /* 1476 * If heart beat timeout called with hb_outstanding set 1477 * we need to give the hb mailbox cmd a chance to 1478 * complete or TMO. 1479 */ 1480 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1481 "0459 Adapter heartbeat still out" 1482 "standing:last compl time was %d ms.\n", 1483 jiffies_to_msecs(jiffies 1484 - phba->last_completion_time)); 1485 mod_timer(&phba->hb_tmofunc, 1486 jiffies + 1487 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1488 } 1489 } else { 1490 mod_timer(&phba->hb_tmofunc, 1491 jiffies + 1492 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1493 } 1494 } 1495 1496 /** 1497 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1498 * @phba: pointer to lpfc hba data structure. 1499 * 1500 * This routine is called to bring the HBA offline when HBA hardware error 1501 * other than Port Error 6 has been detected. 1502 **/ 1503 static void 1504 lpfc_offline_eratt(struct lpfc_hba *phba) 1505 { 1506 struct lpfc_sli *psli = &phba->sli; 1507 1508 spin_lock_irq(&phba->hbalock); 1509 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1510 spin_unlock_irq(&phba->hbalock); 1511 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1512 1513 lpfc_offline(phba); 1514 lpfc_reset_barrier(phba); 1515 spin_lock_irq(&phba->hbalock); 1516 lpfc_sli_brdreset(phba); 1517 spin_unlock_irq(&phba->hbalock); 1518 lpfc_hba_down_post(phba); 1519 lpfc_sli_brdready(phba, HS_MBRDY); 1520 lpfc_unblock_mgmt_io(phba); 1521 phba->link_state = LPFC_HBA_ERROR; 1522 return; 1523 } 1524 1525 /** 1526 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1527 * @phba: pointer to lpfc hba data structure. 1528 * 1529 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1530 * other than Port Error 6 has been detected. 1531 **/ 1532 void 1533 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1534 { 1535 spin_lock_irq(&phba->hbalock); 1536 phba->link_state = LPFC_HBA_ERROR; 1537 spin_unlock_irq(&phba->hbalock); 1538 1539 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1540 lpfc_offline(phba); 1541 lpfc_hba_down_post(phba); 1542 lpfc_unblock_mgmt_io(phba); 1543 } 1544 1545 /** 1546 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1547 * @phba: pointer to lpfc hba data structure. 1548 * 1549 * This routine is invoked to handle the deferred HBA hardware error 1550 * conditions. This type of error is indicated by HBA by setting ER1 1551 * and another ER bit in the host status register. The driver will 1552 * wait until the ER1 bit clears before handling the error condition. 1553 **/ 1554 static void 1555 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1556 { 1557 uint32_t old_host_status = phba->work_hs; 1558 struct lpfc_sli *psli = &phba->sli; 1559 1560 /* If the pci channel is offline, ignore possible errors, 1561 * since we cannot communicate with the pci card anyway. 1562 */ 1563 if (pci_channel_offline(phba->pcidev)) { 1564 spin_lock_irq(&phba->hbalock); 1565 phba->hba_flag &= ~DEFER_ERATT; 1566 spin_unlock_irq(&phba->hbalock); 1567 return; 1568 } 1569 1570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1571 "0479 Deferred Adapter Hardware Error " 1572 "Data: x%x x%x x%x\n", 1573 phba->work_hs, 1574 phba->work_status[0], phba->work_status[1]); 1575 1576 spin_lock_irq(&phba->hbalock); 1577 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1578 spin_unlock_irq(&phba->hbalock); 1579 1580 1581 /* 1582 * Firmware stops when it triggred erratt. That could cause the I/Os 1583 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1584 * SCSI layer retry it after re-establishing link. 1585 */ 1586 lpfc_sli_abort_fcp_rings(phba); 1587 1588 /* 1589 * There was a firmware error. Take the hba offline and then 1590 * attempt to restart it. 1591 */ 1592 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1593 lpfc_offline(phba); 1594 1595 /* Wait for the ER1 bit to clear.*/ 1596 while (phba->work_hs & HS_FFER1) { 1597 msleep(100); 1598 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1599 phba->work_hs = UNPLUG_ERR ; 1600 break; 1601 } 1602 /* If driver is unloading let the worker thread continue */ 1603 if (phba->pport->load_flag & FC_UNLOADING) { 1604 phba->work_hs = 0; 1605 break; 1606 } 1607 } 1608 1609 /* 1610 * This is to ptrotect against a race condition in which 1611 * first write to the host attention register clear the 1612 * host status register. 1613 */ 1614 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1615 phba->work_hs = old_host_status & ~HS_FFER1; 1616 1617 spin_lock_irq(&phba->hbalock); 1618 phba->hba_flag &= ~DEFER_ERATT; 1619 spin_unlock_irq(&phba->hbalock); 1620 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1621 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1622 } 1623 1624 static void 1625 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1626 { 1627 struct lpfc_board_event_header board_event; 1628 struct Scsi_Host *shost; 1629 1630 board_event.event_type = FC_REG_BOARD_EVENT; 1631 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1632 shost = lpfc_shost_from_vport(phba->pport); 1633 fc_host_post_vendor_event(shost, fc_get_event_number(), 1634 sizeof(board_event), 1635 (char *) &board_event, 1636 LPFC_NL_VENDOR_ID); 1637 } 1638 1639 /** 1640 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1641 * @phba: pointer to lpfc hba data structure. 1642 * 1643 * This routine is invoked to handle the following HBA hardware error 1644 * conditions: 1645 * 1 - HBA error attention interrupt 1646 * 2 - DMA ring index out of range 1647 * 3 - Mailbox command came back as unknown 1648 **/ 1649 static void 1650 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1651 { 1652 struct lpfc_vport *vport = phba->pport; 1653 struct lpfc_sli *psli = &phba->sli; 1654 uint32_t event_data; 1655 unsigned long temperature; 1656 struct temp_event temp_event_data; 1657 struct Scsi_Host *shost; 1658 1659 /* If the pci channel is offline, ignore possible errors, 1660 * since we cannot communicate with the pci card anyway. 1661 */ 1662 if (pci_channel_offline(phba->pcidev)) { 1663 spin_lock_irq(&phba->hbalock); 1664 phba->hba_flag &= ~DEFER_ERATT; 1665 spin_unlock_irq(&phba->hbalock); 1666 return; 1667 } 1668 1669 /* If resets are disabled then leave the HBA alone and return */ 1670 if (!phba->cfg_enable_hba_reset) 1671 return; 1672 1673 /* Send an internal error event to mgmt application */ 1674 lpfc_board_errevt_to_mgmt(phba); 1675 1676 if (phba->hba_flag & DEFER_ERATT) 1677 lpfc_handle_deferred_eratt(phba); 1678 1679 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1680 if (phba->work_hs & HS_FFER6) 1681 /* Re-establishing Link */ 1682 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1683 "1301 Re-establishing Link " 1684 "Data: x%x x%x x%x\n", 1685 phba->work_hs, phba->work_status[0], 1686 phba->work_status[1]); 1687 if (phba->work_hs & HS_FFER8) 1688 /* Device Zeroization */ 1689 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1690 "2861 Host Authentication device " 1691 "zeroization Data:x%x x%x x%x\n", 1692 phba->work_hs, phba->work_status[0], 1693 phba->work_status[1]); 1694 1695 spin_lock_irq(&phba->hbalock); 1696 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1697 spin_unlock_irq(&phba->hbalock); 1698 1699 /* 1700 * Firmware stops when it triggled erratt with HS_FFER6. 1701 * That could cause the I/Os dropped by the firmware. 1702 * Error iocb (I/O) on txcmplq and let the SCSI layer 1703 * retry it after re-establishing link. 1704 */ 1705 lpfc_sli_abort_fcp_rings(phba); 1706 1707 /* 1708 * There was a firmware error. Take the hba offline and then 1709 * attempt to restart it. 1710 */ 1711 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1712 lpfc_offline(phba); 1713 lpfc_sli_brdrestart(phba); 1714 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1715 lpfc_unblock_mgmt_io(phba); 1716 return; 1717 } 1718 lpfc_unblock_mgmt_io(phba); 1719 } else if (phba->work_hs & HS_CRIT_TEMP) { 1720 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1721 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1722 temp_event_data.event_code = LPFC_CRIT_TEMP; 1723 temp_event_data.data = (uint32_t)temperature; 1724 1725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1726 "0406 Adapter maximum temperature exceeded " 1727 "(%ld), taking this port offline " 1728 "Data: x%x x%x x%x\n", 1729 temperature, phba->work_hs, 1730 phba->work_status[0], phba->work_status[1]); 1731 1732 shost = lpfc_shost_from_vport(phba->pport); 1733 fc_host_post_vendor_event(shost, fc_get_event_number(), 1734 sizeof(temp_event_data), 1735 (char *) &temp_event_data, 1736 SCSI_NL_VID_TYPE_PCI 1737 | PCI_VENDOR_ID_EMULEX); 1738 1739 spin_lock_irq(&phba->hbalock); 1740 phba->over_temp_state = HBA_OVER_TEMP; 1741 spin_unlock_irq(&phba->hbalock); 1742 lpfc_offline_eratt(phba); 1743 1744 } else { 1745 /* The if clause above forces this code path when the status 1746 * failure is a value other than FFER6. Do not call the offline 1747 * twice. This is the adapter hardware error path. 1748 */ 1749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1750 "0457 Adapter Hardware Error " 1751 "Data: x%x x%x x%x\n", 1752 phba->work_hs, 1753 phba->work_status[0], phba->work_status[1]); 1754 1755 event_data = FC_REG_DUMP_EVENT; 1756 shost = lpfc_shost_from_vport(vport); 1757 fc_host_post_vendor_event(shost, fc_get_event_number(), 1758 sizeof(event_data), (char *) &event_data, 1759 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1760 1761 lpfc_offline_eratt(phba); 1762 } 1763 return; 1764 } 1765 1766 /** 1767 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1768 * @phba: pointer to lpfc hba data structure. 1769 * @mbx_action: flag for mailbox shutdown action. 1770 * 1771 * This routine is invoked to perform an SLI4 port PCI function reset in 1772 * response to port status register polling attention. It waits for port 1773 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1774 * During this process, interrupt vectors are freed and later requested 1775 * for handling possible port resource change. 1776 **/ 1777 static int 1778 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1779 bool en_rn_msg) 1780 { 1781 int rc; 1782 uint32_t intr_mode; 1783 1784 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 1785 LPFC_SLI_INTF_IF_TYPE_2) { 1786 /* 1787 * On error status condition, driver need to wait for port 1788 * ready before performing reset. 1789 */ 1790 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1791 if (rc) 1792 return rc; 1793 } 1794 1795 /* need reset: attempt for port recovery */ 1796 if (en_rn_msg) 1797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1798 "2887 Reset Needed: Attempting Port " 1799 "Recovery...\n"); 1800 lpfc_offline_prep(phba, mbx_action); 1801 lpfc_offline(phba); 1802 /* release interrupt for possible resource change */ 1803 lpfc_sli4_disable_intr(phba); 1804 rc = lpfc_sli_brdrestart(phba); 1805 if (rc) { 1806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1807 "6309 Failed to restart board\n"); 1808 return rc; 1809 } 1810 /* request and enable interrupt */ 1811 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1812 if (intr_mode == LPFC_INTR_ERROR) { 1813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1814 "3175 Failed to enable interrupt\n"); 1815 return -EIO; 1816 } 1817 phba->intr_mode = intr_mode; 1818 rc = lpfc_online(phba); 1819 if (rc == 0) 1820 lpfc_unblock_mgmt_io(phba); 1821 1822 return rc; 1823 } 1824 1825 /** 1826 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1827 * @phba: pointer to lpfc hba data structure. 1828 * 1829 * This routine is invoked to handle the SLI4 HBA hardware error attention 1830 * conditions. 1831 **/ 1832 static void 1833 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1834 { 1835 struct lpfc_vport *vport = phba->pport; 1836 uint32_t event_data; 1837 struct Scsi_Host *shost; 1838 uint32_t if_type; 1839 struct lpfc_register portstat_reg = {0}; 1840 uint32_t reg_err1, reg_err2; 1841 uint32_t uerrlo_reg, uemasklo_reg; 1842 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1843 bool en_rn_msg = true; 1844 struct temp_event temp_event_data; 1845 struct lpfc_register portsmphr_reg; 1846 int rc, i; 1847 1848 /* If the pci channel is offline, ignore possible errors, since 1849 * we cannot communicate with the pci card anyway. 1850 */ 1851 if (pci_channel_offline(phba->pcidev)) 1852 return; 1853 1854 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1855 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1856 switch (if_type) { 1857 case LPFC_SLI_INTF_IF_TYPE_0: 1858 pci_rd_rc1 = lpfc_readl( 1859 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1860 &uerrlo_reg); 1861 pci_rd_rc2 = lpfc_readl( 1862 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1863 &uemasklo_reg); 1864 /* consider PCI bus read error as pci_channel_offline */ 1865 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1866 return; 1867 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1868 lpfc_sli4_offline_eratt(phba); 1869 return; 1870 } 1871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1872 "7623 Checking UE recoverable"); 1873 1874 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1875 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1876 &portsmphr_reg.word0)) 1877 continue; 1878 1879 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1880 &portsmphr_reg); 1881 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1882 LPFC_PORT_SEM_UE_RECOVERABLE) 1883 break; 1884 /*Sleep for 1Sec, before checking SEMAPHORE */ 1885 msleep(1000); 1886 } 1887 1888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1889 "4827 smphr_port_status x%x : Waited %dSec", 1890 smphr_port_status, i); 1891 1892 /* Recoverable UE, reset the HBA device */ 1893 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1894 LPFC_PORT_SEM_UE_RECOVERABLE) { 1895 for (i = 0; i < 20; i++) { 1896 msleep(1000); 1897 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1898 &portsmphr_reg.word0) && 1899 (LPFC_POST_STAGE_PORT_READY == 1900 bf_get(lpfc_port_smphr_port_status, 1901 &portsmphr_reg))) { 1902 rc = lpfc_sli4_port_sta_fn_reset(phba, 1903 LPFC_MBX_NO_WAIT, en_rn_msg); 1904 if (rc == 0) 1905 return; 1906 lpfc_printf_log(phba, 1907 KERN_ERR, LOG_INIT, 1908 "4215 Failed to recover UE"); 1909 break; 1910 } 1911 } 1912 } 1913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1914 "7624 Firmware not ready: Failing UE recovery," 1915 " waited %dSec", i); 1916 lpfc_sli4_offline_eratt(phba); 1917 break; 1918 1919 case LPFC_SLI_INTF_IF_TYPE_2: 1920 case LPFC_SLI_INTF_IF_TYPE_6: 1921 pci_rd_rc1 = lpfc_readl( 1922 phba->sli4_hba.u.if_type2.STATUSregaddr, 1923 &portstat_reg.word0); 1924 /* consider PCI bus read error as pci_channel_offline */ 1925 if (pci_rd_rc1 == -EIO) { 1926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1927 "3151 PCI bus read access failure: x%x\n", 1928 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1929 return; 1930 } 1931 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1932 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1933 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1935 "2889 Port Overtemperature event, " 1936 "taking port offline Data: x%x x%x\n", 1937 reg_err1, reg_err2); 1938 1939 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1940 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1941 temp_event_data.event_code = LPFC_CRIT_TEMP; 1942 temp_event_data.data = 0xFFFFFFFF; 1943 1944 shost = lpfc_shost_from_vport(phba->pport); 1945 fc_host_post_vendor_event(shost, fc_get_event_number(), 1946 sizeof(temp_event_data), 1947 (char *)&temp_event_data, 1948 SCSI_NL_VID_TYPE_PCI 1949 | PCI_VENDOR_ID_EMULEX); 1950 1951 spin_lock_irq(&phba->hbalock); 1952 phba->over_temp_state = HBA_OVER_TEMP; 1953 spin_unlock_irq(&phba->hbalock); 1954 lpfc_sli4_offline_eratt(phba); 1955 return; 1956 } 1957 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1958 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1960 "3143 Port Down: Firmware Update " 1961 "Detected\n"); 1962 en_rn_msg = false; 1963 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1964 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1966 "3144 Port Down: Debug Dump\n"); 1967 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1968 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1970 "3145 Port Down: Provisioning\n"); 1971 1972 /* If resets are disabled then leave the HBA alone and return */ 1973 if (!phba->cfg_enable_hba_reset) 1974 return; 1975 1976 /* Check port status register for function reset */ 1977 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1978 en_rn_msg); 1979 if (rc == 0) { 1980 /* don't report event on forced debug dump */ 1981 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1982 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1983 return; 1984 else 1985 break; 1986 } 1987 /* fall through for not able to recover */ 1988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1989 "3152 Unrecoverable error, bring the port " 1990 "offline\n"); 1991 lpfc_sli4_offline_eratt(phba); 1992 break; 1993 case LPFC_SLI_INTF_IF_TYPE_1: 1994 default: 1995 break; 1996 } 1997 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1998 "3123 Report dump event to upper layer\n"); 1999 /* Send an internal error event to mgmt application */ 2000 lpfc_board_errevt_to_mgmt(phba); 2001 2002 event_data = FC_REG_DUMP_EVENT; 2003 shost = lpfc_shost_from_vport(vport); 2004 fc_host_post_vendor_event(shost, fc_get_event_number(), 2005 sizeof(event_data), (char *) &event_data, 2006 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 2007 } 2008 2009 /** 2010 * lpfc_handle_eratt - Wrapper func for handling hba error attention 2011 * @phba: pointer to lpfc HBA data structure. 2012 * 2013 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 2014 * routine from the API jump table function pointer from the lpfc_hba struct. 2015 * 2016 * Return codes 2017 * 0 - success. 2018 * Any other value - error. 2019 **/ 2020 void 2021 lpfc_handle_eratt(struct lpfc_hba *phba) 2022 { 2023 (*phba->lpfc_handle_eratt)(phba); 2024 } 2025 2026 /** 2027 * lpfc_handle_latt - The HBA link event handler 2028 * @phba: pointer to lpfc hba data structure. 2029 * 2030 * This routine is invoked from the worker thread to handle a HBA host 2031 * attention link event. SLI3 only. 2032 **/ 2033 void 2034 lpfc_handle_latt(struct lpfc_hba *phba) 2035 { 2036 struct lpfc_vport *vport = phba->pport; 2037 struct lpfc_sli *psli = &phba->sli; 2038 LPFC_MBOXQ_t *pmb; 2039 volatile uint32_t control; 2040 struct lpfc_dmabuf *mp; 2041 int rc = 0; 2042 2043 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2044 if (!pmb) { 2045 rc = 1; 2046 goto lpfc_handle_latt_err_exit; 2047 } 2048 2049 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2050 if (!mp) { 2051 rc = 2; 2052 goto lpfc_handle_latt_free_pmb; 2053 } 2054 2055 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2056 if (!mp->virt) { 2057 rc = 3; 2058 goto lpfc_handle_latt_free_mp; 2059 } 2060 2061 /* Cleanup any outstanding ELS commands */ 2062 lpfc_els_flush_all_cmd(phba); 2063 2064 psli->slistat.link_event++; 2065 lpfc_read_topology(phba, pmb, mp); 2066 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 2067 pmb->vport = vport; 2068 /* Block ELS IOCBs until we have processed this mbox command */ 2069 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2070 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 2071 if (rc == MBX_NOT_FINISHED) { 2072 rc = 4; 2073 goto lpfc_handle_latt_free_mbuf; 2074 } 2075 2076 /* Clear Link Attention in HA REG */ 2077 spin_lock_irq(&phba->hbalock); 2078 writel(HA_LATT, phba->HAregaddr); 2079 readl(phba->HAregaddr); /* flush */ 2080 spin_unlock_irq(&phba->hbalock); 2081 2082 return; 2083 2084 lpfc_handle_latt_free_mbuf: 2085 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2086 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2087 lpfc_handle_latt_free_mp: 2088 kfree(mp); 2089 lpfc_handle_latt_free_pmb: 2090 mempool_free(pmb, phba->mbox_mem_pool); 2091 lpfc_handle_latt_err_exit: 2092 /* Enable Link attention interrupts */ 2093 spin_lock_irq(&phba->hbalock); 2094 psli->sli_flag |= LPFC_PROCESS_LA; 2095 control = readl(phba->HCregaddr); 2096 control |= HC_LAINT_ENA; 2097 writel(control, phba->HCregaddr); 2098 readl(phba->HCregaddr); /* flush */ 2099 2100 /* Clear Link Attention in HA REG */ 2101 writel(HA_LATT, phba->HAregaddr); 2102 readl(phba->HAregaddr); /* flush */ 2103 spin_unlock_irq(&phba->hbalock); 2104 lpfc_linkdown(phba); 2105 phba->link_state = LPFC_HBA_ERROR; 2106 2107 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2108 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 2109 2110 return; 2111 } 2112 2113 /** 2114 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 2115 * @phba: pointer to lpfc hba data structure. 2116 * @vpd: pointer to the vital product data. 2117 * @len: length of the vital product data in bytes. 2118 * 2119 * This routine parses the Vital Product Data (VPD). The VPD is treated as 2120 * an array of characters. In this routine, the ModelName, ProgramType, and 2121 * ModelDesc, etc. fields of the phba data structure will be populated. 2122 * 2123 * Return codes 2124 * 0 - pointer to the VPD passed in is NULL 2125 * 1 - success 2126 **/ 2127 int 2128 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 2129 { 2130 uint8_t lenlo, lenhi; 2131 int Length; 2132 int i, j; 2133 int finished = 0; 2134 int index = 0; 2135 2136 if (!vpd) 2137 return 0; 2138 2139 /* Vital Product */ 2140 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2141 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2142 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2143 (uint32_t) vpd[3]); 2144 while (!finished && (index < (len - 4))) { 2145 switch (vpd[index]) { 2146 case 0x82: 2147 case 0x91: 2148 index += 1; 2149 lenlo = vpd[index]; 2150 index += 1; 2151 lenhi = vpd[index]; 2152 index += 1; 2153 i = ((((unsigned short)lenhi) << 8) + lenlo); 2154 index += i; 2155 break; 2156 case 0x90: 2157 index += 1; 2158 lenlo = vpd[index]; 2159 index += 1; 2160 lenhi = vpd[index]; 2161 index += 1; 2162 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2163 if (Length > len - index) 2164 Length = len - index; 2165 while (Length > 0) { 2166 /* Look for Serial Number */ 2167 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2168 index += 2; 2169 i = vpd[index]; 2170 index += 1; 2171 j = 0; 2172 Length -= (3+i); 2173 while(i--) { 2174 phba->SerialNumber[j++] = vpd[index++]; 2175 if (j == 31) 2176 break; 2177 } 2178 phba->SerialNumber[j] = 0; 2179 continue; 2180 } 2181 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2182 phba->vpd_flag |= VPD_MODEL_DESC; 2183 index += 2; 2184 i = vpd[index]; 2185 index += 1; 2186 j = 0; 2187 Length -= (3+i); 2188 while(i--) { 2189 phba->ModelDesc[j++] = vpd[index++]; 2190 if (j == 255) 2191 break; 2192 } 2193 phba->ModelDesc[j] = 0; 2194 continue; 2195 } 2196 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2197 phba->vpd_flag |= VPD_MODEL_NAME; 2198 index += 2; 2199 i = vpd[index]; 2200 index += 1; 2201 j = 0; 2202 Length -= (3+i); 2203 while(i--) { 2204 phba->ModelName[j++] = vpd[index++]; 2205 if (j == 79) 2206 break; 2207 } 2208 phba->ModelName[j] = 0; 2209 continue; 2210 } 2211 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2212 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2213 index += 2; 2214 i = vpd[index]; 2215 index += 1; 2216 j = 0; 2217 Length -= (3+i); 2218 while(i--) { 2219 phba->ProgramType[j++] = vpd[index++]; 2220 if (j == 255) 2221 break; 2222 } 2223 phba->ProgramType[j] = 0; 2224 continue; 2225 } 2226 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2227 phba->vpd_flag |= VPD_PORT; 2228 index += 2; 2229 i = vpd[index]; 2230 index += 1; 2231 j = 0; 2232 Length -= (3+i); 2233 while(i--) { 2234 if ((phba->sli_rev == LPFC_SLI_REV4) && 2235 (phba->sli4_hba.pport_name_sta == 2236 LPFC_SLI4_PPNAME_GET)) { 2237 j++; 2238 index++; 2239 } else 2240 phba->Port[j++] = vpd[index++]; 2241 if (j == 19) 2242 break; 2243 } 2244 if ((phba->sli_rev != LPFC_SLI_REV4) || 2245 (phba->sli4_hba.pport_name_sta == 2246 LPFC_SLI4_PPNAME_NON)) 2247 phba->Port[j] = 0; 2248 continue; 2249 } 2250 else { 2251 index += 2; 2252 i = vpd[index]; 2253 index += 1; 2254 index += i; 2255 Length -= (3 + i); 2256 } 2257 } 2258 finished = 0; 2259 break; 2260 case 0x78: 2261 finished = 1; 2262 break; 2263 default: 2264 index ++; 2265 break; 2266 } 2267 } 2268 2269 return(1); 2270 } 2271 2272 /** 2273 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2274 * @phba: pointer to lpfc hba data structure. 2275 * @mdp: pointer to the data structure to hold the derived model name. 2276 * @descp: pointer to the data structure to hold the derived description. 2277 * 2278 * This routine retrieves HBA's description based on its registered PCI device 2279 * ID. The @descp passed into this function points to an array of 256 chars. It 2280 * shall be returned with the model name, maximum speed, and the host bus type. 2281 * The @mdp passed into this function points to an array of 80 chars. When the 2282 * function returns, the @mdp will be filled with the model name. 2283 **/ 2284 static void 2285 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2286 { 2287 lpfc_vpd_t *vp; 2288 uint16_t dev_id = phba->pcidev->device; 2289 int max_speed; 2290 int GE = 0; 2291 int oneConnect = 0; /* default is not a oneConnect */ 2292 struct { 2293 char *name; 2294 char *bus; 2295 char *function; 2296 } m = {"<Unknown>", "", ""}; 2297 2298 if (mdp && mdp[0] != '\0' 2299 && descp && descp[0] != '\0') 2300 return; 2301 2302 if (phba->lmt & LMT_64Gb) 2303 max_speed = 64; 2304 else if (phba->lmt & LMT_32Gb) 2305 max_speed = 32; 2306 else if (phba->lmt & LMT_16Gb) 2307 max_speed = 16; 2308 else if (phba->lmt & LMT_10Gb) 2309 max_speed = 10; 2310 else if (phba->lmt & LMT_8Gb) 2311 max_speed = 8; 2312 else if (phba->lmt & LMT_4Gb) 2313 max_speed = 4; 2314 else if (phba->lmt & LMT_2Gb) 2315 max_speed = 2; 2316 else if (phba->lmt & LMT_1Gb) 2317 max_speed = 1; 2318 else 2319 max_speed = 0; 2320 2321 vp = &phba->vpd; 2322 2323 switch (dev_id) { 2324 case PCI_DEVICE_ID_FIREFLY: 2325 m = (typeof(m)){"LP6000", "PCI", 2326 "Obsolete, Unsupported Fibre Channel Adapter"}; 2327 break; 2328 case PCI_DEVICE_ID_SUPERFLY: 2329 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2330 m = (typeof(m)){"LP7000", "PCI", ""}; 2331 else 2332 m = (typeof(m)){"LP7000E", "PCI", ""}; 2333 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2334 break; 2335 case PCI_DEVICE_ID_DRAGONFLY: 2336 m = (typeof(m)){"LP8000", "PCI", 2337 "Obsolete, Unsupported Fibre Channel Adapter"}; 2338 break; 2339 case PCI_DEVICE_ID_CENTAUR: 2340 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2341 m = (typeof(m)){"LP9002", "PCI", ""}; 2342 else 2343 m = (typeof(m)){"LP9000", "PCI", ""}; 2344 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2345 break; 2346 case PCI_DEVICE_ID_RFLY: 2347 m = (typeof(m)){"LP952", "PCI", 2348 "Obsolete, Unsupported Fibre Channel Adapter"}; 2349 break; 2350 case PCI_DEVICE_ID_PEGASUS: 2351 m = (typeof(m)){"LP9802", "PCI-X", 2352 "Obsolete, Unsupported Fibre Channel Adapter"}; 2353 break; 2354 case PCI_DEVICE_ID_THOR: 2355 m = (typeof(m)){"LP10000", "PCI-X", 2356 "Obsolete, Unsupported Fibre Channel Adapter"}; 2357 break; 2358 case PCI_DEVICE_ID_VIPER: 2359 m = (typeof(m)){"LPX1000", "PCI-X", 2360 "Obsolete, Unsupported Fibre Channel Adapter"}; 2361 break; 2362 case PCI_DEVICE_ID_PFLY: 2363 m = (typeof(m)){"LP982", "PCI-X", 2364 "Obsolete, Unsupported Fibre Channel Adapter"}; 2365 break; 2366 case PCI_DEVICE_ID_TFLY: 2367 m = (typeof(m)){"LP1050", "PCI-X", 2368 "Obsolete, Unsupported Fibre Channel Adapter"}; 2369 break; 2370 case PCI_DEVICE_ID_HELIOS: 2371 m = (typeof(m)){"LP11000", "PCI-X2", 2372 "Obsolete, Unsupported Fibre Channel Adapter"}; 2373 break; 2374 case PCI_DEVICE_ID_HELIOS_SCSP: 2375 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2376 "Obsolete, Unsupported Fibre Channel Adapter"}; 2377 break; 2378 case PCI_DEVICE_ID_HELIOS_DCSP: 2379 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2380 "Obsolete, Unsupported Fibre Channel Adapter"}; 2381 break; 2382 case PCI_DEVICE_ID_NEPTUNE: 2383 m = (typeof(m)){"LPe1000", "PCIe", 2384 "Obsolete, Unsupported Fibre Channel Adapter"}; 2385 break; 2386 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2387 m = (typeof(m)){"LPe1000-SP", "PCIe", 2388 "Obsolete, Unsupported Fibre Channel Adapter"}; 2389 break; 2390 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2391 m = (typeof(m)){"LPe1002-SP", "PCIe", 2392 "Obsolete, Unsupported Fibre Channel Adapter"}; 2393 break; 2394 case PCI_DEVICE_ID_BMID: 2395 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2396 break; 2397 case PCI_DEVICE_ID_BSMB: 2398 m = (typeof(m)){"LP111", "PCI-X2", 2399 "Obsolete, Unsupported Fibre Channel Adapter"}; 2400 break; 2401 case PCI_DEVICE_ID_ZEPHYR: 2402 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2403 break; 2404 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2405 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2406 break; 2407 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2408 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2409 GE = 1; 2410 break; 2411 case PCI_DEVICE_ID_ZMID: 2412 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2413 break; 2414 case PCI_DEVICE_ID_ZSMB: 2415 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2416 break; 2417 case PCI_DEVICE_ID_LP101: 2418 m = (typeof(m)){"LP101", "PCI-X", 2419 "Obsolete, Unsupported Fibre Channel Adapter"}; 2420 break; 2421 case PCI_DEVICE_ID_LP10000S: 2422 m = (typeof(m)){"LP10000-S", "PCI", 2423 "Obsolete, Unsupported Fibre Channel Adapter"}; 2424 break; 2425 case PCI_DEVICE_ID_LP11000S: 2426 m = (typeof(m)){"LP11000-S", "PCI-X2", 2427 "Obsolete, Unsupported Fibre Channel Adapter"}; 2428 break; 2429 case PCI_DEVICE_ID_LPE11000S: 2430 m = (typeof(m)){"LPe11000-S", "PCIe", 2431 "Obsolete, Unsupported Fibre Channel Adapter"}; 2432 break; 2433 case PCI_DEVICE_ID_SAT: 2434 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2435 break; 2436 case PCI_DEVICE_ID_SAT_MID: 2437 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2438 break; 2439 case PCI_DEVICE_ID_SAT_SMB: 2440 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2441 break; 2442 case PCI_DEVICE_ID_SAT_DCSP: 2443 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2444 break; 2445 case PCI_DEVICE_ID_SAT_SCSP: 2446 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2447 break; 2448 case PCI_DEVICE_ID_SAT_S: 2449 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2450 break; 2451 case PCI_DEVICE_ID_HORNET: 2452 m = (typeof(m)){"LP21000", "PCIe", 2453 "Obsolete, Unsupported FCoE Adapter"}; 2454 GE = 1; 2455 break; 2456 case PCI_DEVICE_ID_PROTEUS_VF: 2457 m = (typeof(m)){"LPev12000", "PCIe IOV", 2458 "Obsolete, Unsupported Fibre Channel Adapter"}; 2459 break; 2460 case PCI_DEVICE_ID_PROTEUS_PF: 2461 m = (typeof(m)){"LPev12000", "PCIe IOV", 2462 "Obsolete, Unsupported Fibre Channel Adapter"}; 2463 break; 2464 case PCI_DEVICE_ID_PROTEUS_S: 2465 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2466 "Obsolete, Unsupported Fibre Channel Adapter"}; 2467 break; 2468 case PCI_DEVICE_ID_TIGERSHARK: 2469 oneConnect = 1; 2470 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2471 break; 2472 case PCI_DEVICE_ID_TOMCAT: 2473 oneConnect = 1; 2474 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2475 break; 2476 case PCI_DEVICE_ID_FALCON: 2477 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2478 "EmulexSecure Fibre"}; 2479 break; 2480 case PCI_DEVICE_ID_BALIUS: 2481 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2482 "Obsolete, Unsupported Fibre Channel Adapter"}; 2483 break; 2484 case PCI_DEVICE_ID_LANCER_FC: 2485 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2486 break; 2487 case PCI_DEVICE_ID_LANCER_FC_VF: 2488 m = (typeof(m)){"LPe16000", "PCIe", 2489 "Obsolete, Unsupported Fibre Channel Adapter"}; 2490 break; 2491 case PCI_DEVICE_ID_LANCER_FCOE: 2492 oneConnect = 1; 2493 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2494 break; 2495 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2496 oneConnect = 1; 2497 m = (typeof(m)){"OCe15100", "PCIe", 2498 "Obsolete, Unsupported FCoE"}; 2499 break; 2500 case PCI_DEVICE_ID_LANCER_G6_FC: 2501 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2502 break; 2503 case PCI_DEVICE_ID_LANCER_G7_FC: 2504 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"}; 2505 break; 2506 case PCI_DEVICE_ID_SKYHAWK: 2507 case PCI_DEVICE_ID_SKYHAWK_VF: 2508 oneConnect = 1; 2509 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2510 break; 2511 default: 2512 m = (typeof(m)){"Unknown", "", ""}; 2513 break; 2514 } 2515 2516 if (mdp && mdp[0] == '\0') 2517 snprintf(mdp, 79,"%s", m.name); 2518 /* 2519 * oneConnect hba requires special processing, they are all initiators 2520 * and we put the port number on the end 2521 */ 2522 if (descp && descp[0] == '\0') { 2523 if (oneConnect) 2524 snprintf(descp, 255, 2525 "Emulex OneConnect %s, %s Initiator %s", 2526 m.name, m.function, 2527 phba->Port); 2528 else if (max_speed == 0) 2529 snprintf(descp, 255, 2530 "Emulex %s %s %s", 2531 m.name, m.bus, m.function); 2532 else 2533 snprintf(descp, 255, 2534 "Emulex %s %d%s %s %s", 2535 m.name, max_speed, (GE) ? "GE" : "Gb", 2536 m.bus, m.function); 2537 } 2538 } 2539 2540 /** 2541 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2542 * @phba: pointer to lpfc hba data structure. 2543 * @pring: pointer to a IOCB ring. 2544 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2545 * 2546 * This routine posts a given number of IOCBs with the associated DMA buffer 2547 * descriptors specified by the cnt argument to the given IOCB ring. 2548 * 2549 * Return codes 2550 * The number of IOCBs NOT able to be posted to the IOCB ring. 2551 **/ 2552 int 2553 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2554 { 2555 IOCB_t *icmd; 2556 struct lpfc_iocbq *iocb; 2557 struct lpfc_dmabuf *mp1, *mp2; 2558 2559 cnt += pring->missbufcnt; 2560 2561 /* While there are buffers to post */ 2562 while (cnt > 0) { 2563 /* Allocate buffer for command iocb */ 2564 iocb = lpfc_sli_get_iocbq(phba); 2565 if (iocb == NULL) { 2566 pring->missbufcnt = cnt; 2567 return cnt; 2568 } 2569 icmd = &iocb->iocb; 2570 2571 /* 2 buffers can be posted per command */ 2572 /* Allocate buffer to post */ 2573 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2574 if (mp1) 2575 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2576 if (!mp1 || !mp1->virt) { 2577 kfree(mp1); 2578 lpfc_sli_release_iocbq(phba, iocb); 2579 pring->missbufcnt = cnt; 2580 return cnt; 2581 } 2582 2583 INIT_LIST_HEAD(&mp1->list); 2584 /* Allocate buffer to post */ 2585 if (cnt > 1) { 2586 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2587 if (mp2) 2588 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2589 &mp2->phys); 2590 if (!mp2 || !mp2->virt) { 2591 kfree(mp2); 2592 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2593 kfree(mp1); 2594 lpfc_sli_release_iocbq(phba, iocb); 2595 pring->missbufcnt = cnt; 2596 return cnt; 2597 } 2598 2599 INIT_LIST_HEAD(&mp2->list); 2600 } else { 2601 mp2 = NULL; 2602 } 2603 2604 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2605 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2606 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2607 icmd->ulpBdeCount = 1; 2608 cnt--; 2609 if (mp2) { 2610 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2611 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2612 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2613 cnt--; 2614 icmd->ulpBdeCount = 2; 2615 } 2616 2617 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2618 icmd->ulpLe = 1; 2619 2620 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2621 IOCB_ERROR) { 2622 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2623 kfree(mp1); 2624 cnt++; 2625 if (mp2) { 2626 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2627 kfree(mp2); 2628 cnt++; 2629 } 2630 lpfc_sli_release_iocbq(phba, iocb); 2631 pring->missbufcnt = cnt; 2632 return cnt; 2633 } 2634 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2635 if (mp2) 2636 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2637 } 2638 pring->missbufcnt = 0; 2639 return 0; 2640 } 2641 2642 /** 2643 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2644 * @phba: pointer to lpfc hba data structure. 2645 * 2646 * This routine posts initial receive IOCB buffers to the ELS ring. The 2647 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2648 * set to 64 IOCBs. SLI3 only. 2649 * 2650 * Return codes 2651 * 0 - success (currently always success) 2652 **/ 2653 static int 2654 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2655 { 2656 struct lpfc_sli *psli = &phba->sli; 2657 2658 /* Ring 0, ELS / CT buffers */ 2659 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2660 /* Ring 2 - FCP no buffers needed */ 2661 2662 return 0; 2663 } 2664 2665 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2666 2667 /** 2668 * lpfc_sha_init - Set up initial array of hash table entries 2669 * @HashResultPointer: pointer to an array as hash table. 2670 * 2671 * This routine sets up the initial values to the array of hash table entries 2672 * for the LC HBAs. 2673 **/ 2674 static void 2675 lpfc_sha_init(uint32_t * HashResultPointer) 2676 { 2677 HashResultPointer[0] = 0x67452301; 2678 HashResultPointer[1] = 0xEFCDAB89; 2679 HashResultPointer[2] = 0x98BADCFE; 2680 HashResultPointer[3] = 0x10325476; 2681 HashResultPointer[4] = 0xC3D2E1F0; 2682 } 2683 2684 /** 2685 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2686 * @HashResultPointer: pointer to an initial/result hash table. 2687 * @HashWorkingPointer: pointer to an working hash table. 2688 * 2689 * This routine iterates an initial hash table pointed by @HashResultPointer 2690 * with the values from the working hash table pointeed by @HashWorkingPointer. 2691 * The results are putting back to the initial hash table, returned through 2692 * the @HashResultPointer as the result hash table. 2693 **/ 2694 static void 2695 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2696 { 2697 int t; 2698 uint32_t TEMP; 2699 uint32_t A, B, C, D, E; 2700 t = 16; 2701 do { 2702 HashWorkingPointer[t] = 2703 S(1, 2704 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2705 8] ^ 2706 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2707 } while (++t <= 79); 2708 t = 0; 2709 A = HashResultPointer[0]; 2710 B = HashResultPointer[1]; 2711 C = HashResultPointer[2]; 2712 D = HashResultPointer[3]; 2713 E = HashResultPointer[4]; 2714 2715 do { 2716 if (t < 20) { 2717 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2718 } else if (t < 40) { 2719 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2720 } else if (t < 60) { 2721 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2722 } else { 2723 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2724 } 2725 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2726 E = D; 2727 D = C; 2728 C = S(30, B); 2729 B = A; 2730 A = TEMP; 2731 } while (++t <= 79); 2732 2733 HashResultPointer[0] += A; 2734 HashResultPointer[1] += B; 2735 HashResultPointer[2] += C; 2736 HashResultPointer[3] += D; 2737 HashResultPointer[4] += E; 2738 2739 } 2740 2741 /** 2742 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2743 * @RandomChallenge: pointer to the entry of host challenge random number array. 2744 * @HashWorking: pointer to the entry of the working hash array. 2745 * 2746 * This routine calculates the working hash array referred by @HashWorking 2747 * from the challenge random numbers associated with the host, referred by 2748 * @RandomChallenge. The result is put into the entry of the working hash 2749 * array and returned by reference through @HashWorking. 2750 **/ 2751 static void 2752 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2753 { 2754 *HashWorking = (*RandomChallenge ^ *HashWorking); 2755 } 2756 2757 /** 2758 * lpfc_hba_init - Perform special handling for LC HBA initialization 2759 * @phba: pointer to lpfc hba data structure. 2760 * @hbainit: pointer to an array of unsigned 32-bit integers. 2761 * 2762 * This routine performs the special handling for LC HBA initialization. 2763 **/ 2764 void 2765 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2766 { 2767 int t; 2768 uint32_t *HashWorking; 2769 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2770 2771 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2772 if (!HashWorking) 2773 return; 2774 2775 HashWorking[0] = HashWorking[78] = *pwwnn++; 2776 HashWorking[1] = HashWorking[79] = *pwwnn; 2777 2778 for (t = 0; t < 7; t++) 2779 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2780 2781 lpfc_sha_init(hbainit); 2782 lpfc_sha_iterate(hbainit, HashWorking); 2783 kfree(HashWorking); 2784 } 2785 2786 /** 2787 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2788 * @vport: pointer to a virtual N_Port data structure. 2789 * 2790 * This routine performs the necessary cleanups before deleting the @vport. 2791 * It invokes the discovery state machine to perform necessary state 2792 * transitions and to release the ndlps associated with the @vport. Note, 2793 * the physical port is treated as @vport 0. 2794 **/ 2795 void 2796 lpfc_cleanup(struct lpfc_vport *vport) 2797 { 2798 struct lpfc_hba *phba = vport->phba; 2799 struct lpfc_nodelist *ndlp, *next_ndlp; 2800 int i = 0; 2801 2802 if (phba->link_state > LPFC_LINK_DOWN) 2803 lpfc_port_link_failure(vport); 2804 2805 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2806 if (!NLP_CHK_NODE_ACT(ndlp)) { 2807 ndlp = lpfc_enable_node(vport, ndlp, 2808 NLP_STE_UNUSED_NODE); 2809 if (!ndlp) 2810 continue; 2811 spin_lock_irq(&phba->ndlp_lock); 2812 NLP_SET_FREE_REQ(ndlp); 2813 spin_unlock_irq(&phba->ndlp_lock); 2814 /* Trigger the release of the ndlp memory */ 2815 lpfc_nlp_put(ndlp); 2816 continue; 2817 } 2818 spin_lock_irq(&phba->ndlp_lock); 2819 if (NLP_CHK_FREE_REQ(ndlp)) { 2820 /* The ndlp should not be in memory free mode already */ 2821 spin_unlock_irq(&phba->ndlp_lock); 2822 continue; 2823 } else 2824 /* Indicate request for freeing ndlp memory */ 2825 NLP_SET_FREE_REQ(ndlp); 2826 spin_unlock_irq(&phba->ndlp_lock); 2827 2828 if (vport->port_type != LPFC_PHYSICAL_PORT && 2829 ndlp->nlp_DID == Fabric_DID) { 2830 /* Just free up ndlp with Fabric_DID for vports */ 2831 lpfc_nlp_put(ndlp); 2832 continue; 2833 } 2834 2835 /* take care of nodes in unused state before the state 2836 * machine taking action. 2837 */ 2838 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2839 lpfc_nlp_put(ndlp); 2840 continue; 2841 } 2842 2843 if (ndlp->nlp_type & NLP_FABRIC) 2844 lpfc_disc_state_machine(vport, ndlp, NULL, 2845 NLP_EVT_DEVICE_RECOVERY); 2846 2847 lpfc_disc_state_machine(vport, ndlp, NULL, 2848 NLP_EVT_DEVICE_RM); 2849 } 2850 2851 /* At this point, ALL ndlp's should be gone 2852 * because of the previous NLP_EVT_DEVICE_RM. 2853 * Lets wait for this to happen, if needed. 2854 */ 2855 while (!list_empty(&vport->fc_nodes)) { 2856 if (i++ > 3000) { 2857 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2858 "0233 Nodelist not empty\n"); 2859 list_for_each_entry_safe(ndlp, next_ndlp, 2860 &vport->fc_nodes, nlp_listp) { 2861 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2862 LOG_NODE, 2863 "0282 did:x%x ndlp:x%p " 2864 "usgmap:x%x refcnt:%d\n", 2865 ndlp->nlp_DID, (void *)ndlp, 2866 ndlp->nlp_usg_map, 2867 kref_read(&ndlp->kref)); 2868 } 2869 break; 2870 } 2871 2872 /* Wait for any activity on ndlps to settle */ 2873 msleep(10); 2874 } 2875 lpfc_cleanup_vports_rrqs(vport, NULL); 2876 } 2877 2878 /** 2879 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2880 * @vport: pointer to a virtual N_Port data structure. 2881 * 2882 * This routine stops all the timers associated with a @vport. This function 2883 * is invoked before disabling or deleting a @vport. Note that the physical 2884 * port is treated as @vport 0. 2885 **/ 2886 void 2887 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2888 { 2889 del_timer_sync(&vport->els_tmofunc); 2890 del_timer_sync(&vport->delayed_disc_tmo); 2891 lpfc_can_disctmo(vport); 2892 return; 2893 } 2894 2895 /** 2896 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2897 * @phba: pointer to lpfc hba data structure. 2898 * 2899 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2900 * caller of this routine should already hold the host lock. 2901 **/ 2902 void 2903 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2904 { 2905 /* Clear pending FCF rediscovery wait flag */ 2906 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2907 2908 /* Now, try to stop the timer */ 2909 del_timer(&phba->fcf.redisc_wait); 2910 } 2911 2912 /** 2913 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2914 * @phba: pointer to lpfc hba data structure. 2915 * 2916 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2917 * checks whether the FCF rediscovery wait timer is pending with the host 2918 * lock held before proceeding with disabling the timer and clearing the 2919 * wait timer pendig flag. 2920 **/ 2921 void 2922 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2923 { 2924 spin_lock_irq(&phba->hbalock); 2925 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2926 /* FCF rediscovery timer already fired or stopped */ 2927 spin_unlock_irq(&phba->hbalock); 2928 return; 2929 } 2930 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2931 /* Clear failover in progress flags */ 2932 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2933 spin_unlock_irq(&phba->hbalock); 2934 } 2935 2936 /** 2937 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2938 * @phba: pointer to lpfc hba data structure. 2939 * 2940 * This routine stops all the timers associated with a HBA. This function is 2941 * invoked before either putting a HBA offline or unloading the driver. 2942 **/ 2943 void 2944 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2945 { 2946 lpfc_stop_vport_timers(phba->pport); 2947 del_timer_sync(&phba->sli.mbox_tmo); 2948 del_timer_sync(&phba->fabric_block_timer); 2949 del_timer_sync(&phba->eratt_poll); 2950 del_timer_sync(&phba->hb_tmofunc); 2951 if (phba->sli_rev == LPFC_SLI_REV4) { 2952 del_timer_sync(&phba->rrq_tmr); 2953 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2954 } 2955 phba->hb_outstanding = 0; 2956 2957 switch (phba->pci_dev_grp) { 2958 case LPFC_PCI_DEV_LP: 2959 /* Stop any LightPulse device specific driver timers */ 2960 del_timer_sync(&phba->fcp_poll_timer); 2961 break; 2962 case LPFC_PCI_DEV_OC: 2963 /* Stop any OneConnect device sepcific driver timers */ 2964 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2965 break; 2966 default: 2967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2968 "0297 Invalid device group (x%x)\n", 2969 phba->pci_dev_grp); 2970 break; 2971 } 2972 return; 2973 } 2974 2975 /** 2976 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2977 * @phba: pointer to lpfc hba data structure. 2978 * 2979 * This routine marks a HBA's management interface as blocked. Once the HBA's 2980 * management interface is marked as blocked, all the user space access to 2981 * the HBA, whether they are from sysfs interface or libdfc interface will 2982 * all be blocked. The HBA is set to block the management interface when the 2983 * driver prepares the HBA interface for online or offline. 2984 **/ 2985 static void 2986 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2987 { 2988 unsigned long iflag; 2989 uint8_t actcmd = MBX_HEARTBEAT; 2990 unsigned long timeout; 2991 2992 spin_lock_irqsave(&phba->hbalock, iflag); 2993 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2994 spin_unlock_irqrestore(&phba->hbalock, iflag); 2995 if (mbx_action == LPFC_MBX_NO_WAIT) 2996 return; 2997 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2998 spin_lock_irqsave(&phba->hbalock, iflag); 2999 if (phba->sli.mbox_active) { 3000 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 3001 /* Determine how long we might wait for the active mailbox 3002 * command to be gracefully completed by firmware. 3003 */ 3004 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 3005 phba->sli.mbox_active) * 1000) + jiffies; 3006 } 3007 spin_unlock_irqrestore(&phba->hbalock, iflag); 3008 3009 /* Wait for the outstnading mailbox command to complete */ 3010 while (phba->sli.mbox_active) { 3011 /* Check active mailbox complete status every 2ms */ 3012 msleep(2); 3013 if (time_after(jiffies, timeout)) { 3014 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3015 "2813 Mgmt IO is Blocked %x " 3016 "- mbox cmd %x still active\n", 3017 phba->sli.sli_flag, actcmd); 3018 break; 3019 } 3020 } 3021 } 3022 3023 /** 3024 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 3025 * @phba: pointer to lpfc hba data structure. 3026 * 3027 * Allocate RPIs for all active remote nodes. This is needed whenever 3028 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 3029 * is to fixup the temporary rpi assignments. 3030 **/ 3031 void 3032 lpfc_sli4_node_prep(struct lpfc_hba *phba) 3033 { 3034 struct lpfc_nodelist *ndlp, *next_ndlp; 3035 struct lpfc_vport **vports; 3036 int i, rpi; 3037 unsigned long flags; 3038 3039 if (phba->sli_rev != LPFC_SLI_REV4) 3040 return; 3041 3042 vports = lpfc_create_vport_work_array(phba); 3043 if (vports == NULL) 3044 return; 3045 3046 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3047 if (vports[i]->load_flag & FC_UNLOADING) 3048 continue; 3049 3050 list_for_each_entry_safe(ndlp, next_ndlp, 3051 &vports[i]->fc_nodes, 3052 nlp_listp) { 3053 if (!NLP_CHK_NODE_ACT(ndlp)) 3054 continue; 3055 rpi = lpfc_sli4_alloc_rpi(phba); 3056 if (rpi == LPFC_RPI_ALLOC_ERROR) { 3057 spin_lock_irqsave(&phba->ndlp_lock, flags); 3058 NLP_CLR_NODE_ACT(ndlp); 3059 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3060 continue; 3061 } 3062 ndlp->nlp_rpi = rpi; 3063 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3064 "0009 rpi:%x DID:%x " 3065 "flg:%x map:%x %p\n", ndlp->nlp_rpi, 3066 ndlp->nlp_DID, ndlp->nlp_flag, 3067 ndlp->nlp_usg_map, ndlp); 3068 } 3069 } 3070 lpfc_destroy_vport_work_array(phba, vports); 3071 } 3072 3073 /** 3074 * lpfc_online - Initialize and bring a HBA online 3075 * @phba: pointer to lpfc hba data structure. 3076 * 3077 * This routine initializes the HBA and brings a HBA online. During this 3078 * process, the management interface is blocked to prevent user space access 3079 * to the HBA interfering with the driver initialization. 3080 * 3081 * Return codes 3082 * 0 - successful 3083 * 1 - failed 3084 **/ 3085 int 3086 lpfc_online(struct lpfc_hba *phba) 3087 { 3088 struct lpfc_vport *vport; 3089 struct lpfc_vport **vports; 3090 int i, error = 0; 3091 bool vpis_cleared = false; 3092 3093 if (!phba) 3094 return 0; 3095 vport = phba->pport; 3096 3097 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 3098 return 0; 3099 3100 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3101 "0458 Bring Adapter online\n"); 3102 3103 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 3104 3105 if (phba->sli_rev == LPFC_SLI_REV4) { 3106 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 3107 lpfc_unblock_mgmt_io(phba); 3108 return 1; 3109 } 3110 spin_lock_irq(&phba->hbalock); 3111 if (!phba->sli4_hba.max_cfg_param.vpi_used) 3112 vpis_cleared = true; 3113 spin_unlock_irq(&phba->hbalock); 3114 3115 /* Reestablish the local initiator port. 3116 * The offline process destroyed the previous lport. 3117 */ 3118 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && 3119 !phba->nvmet_support) { 3120 error = lpfc_nvme_create_localport(phba->pport); 3121 if (error) 3122 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3123 "6132 NVME restore reg failed " 3124 "on nvmei error x%x\n", error); 3125 } 3126 } else { 3127 lpfc_sli_queue_init(phba); 3128 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3129 lpfc_unblock_mgmt_io(phba); 3130 return 1; 3131 } 3132 } 3133 3134 vports = lpfc_create_vport_work_array(phba); 3135 if (vports != NULL) { 3136 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3137 struct Scsi_Host *shost; 3138 shost = lpfc_shost_from_vport(vports[i]); 3139 spin_lock_irq(shost->host_lock); 3140 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3141 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3142 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3143 if (phba->sli_rev == LPFC_SLI_REV4) { 3144 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3145 if ((vpis_cleared) && 3146 (vports[i]->port_type != 3147 LPFC_PHYSICAL_PORT)) 3148 vports[i]->vpi = 0; 3149 } 3150 spin_unlock_irq(shost->host_lock); 3151 } 3152 } 3153 lpfc_destroy_vport_work_array(phba, vports); 3154 3155 lpfc_unblock_mgmt_io(phba); 3156 return 0; 3157 } 3158 3159 /** 3160 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3161 * @phba: pointer to lpfc hba data structure. 3162 * 3163 * This routine marks a HBA's management interface as not blocked. Once the 3164 * HBA's management interface is marked as not blocked, all the user space 3165 * access to the HBA, whether they are from sysfs interface or libdfc 3166 * interface will be allowed. The HBA is set to block the management interface 3167 * when the driver prepares the HBA interface for online or offline and then 3168 * set to unblock the management interface afterwards. 3169 **/ 3170 void 3171 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3172 { 3173 unsigned long iflag; 3174 3175 spin_lock_irqsave(&phba->hbalock, iflag); 3176 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3177 spin_unlock_irqrestore(&phba->hbalock, iflag); 3178 } 3179 3180 /** 3181 * lpfc_offline_prep - Prepare a HBA to be brought offline 3182 * @phba: pointer to lpfc hba data structure. 3183 * 3184 * This routine is invoked to prepare a HBA to be brought offline. It performs 3185 * unregistration login to all the nodes on all vports and flushes the mailbox 3186 * queue to make it ready to be brought offline. 3187 **/ 3188 void 3189 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3190 { 3191 struct lpfc_vport *vport = phba->pport; 3192 struct lpfc_nodelist *ndlp, *next_ndlp; 3193 struct lpfc_vport **vports; 3194 struct Scsi_Host *shost; 3195 int i; 3196 3197 if (vport->fc_flag & FC_OFFLINE_MODE) 3198 return; 3199 3200 lpfc_block_mgmt_io(phba, mbx_action); 3201 3202 lpfc_linkdown(phba); 3203 3204 /* Issue an unreg_login to all nodes on all vports */ 3205 vports = lpfc_create_vport_work_array(phba); 3206 if (vports != NULL) { 3207 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3208 if (vports[i]->load_flag & FC_UNLOADING) 3209 continue; 3210 shost = lpfc_shost_from_vport(vports[i]); 3211 spin_lock_irq(shost->host_lock); 3212 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3213 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3214 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3215 spin_unlock_irq(shost->host_lock); 3216 3217 shost = lpfc_shost_from_vport(vports[i]); 3218 list_for_each_entry_safe(ndlp, next_ndlp, 3219 &vports[i]->fc_nodes, 3220 nlp_listp) { 3221 if (!NLP_CHK_NODE_ACT(ndlp)) 3222 continue; 3223 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3224 continue; 3225 if (ndlp->nlp_type & NLP_FABRIC) { 3226 lpfc_disc_state_machine(vports[i], ndlp, 3227 NULL, NLP_EVT_DEVICE_RECOVERY); 3228 lpfc_disc_state_machine(vports[i], ndlp, 3229 NULL, NLP_EVT_DEVICE_RM); 3230 } 3231 spin_lock_irq(shost->host_lock); 3232 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3233 spin_unlock_irq(shost->host_lock); 3234 /* 3235 * Whenever an SLI4 port goes offline, free the 3236 * RPI. Get a new RPI when the adapter port 3237 * comes back online. 3238 */ 3239 if (phba->sli_rev == LPFC_SLI_REV4) { 3240 lpfc_printf_vlog(ndlp->vport, 3241 KERN_INFO, LOG_NODE, 3242 "0011 lpfc_offline: " 3243 "ndlp:x%p did %x " 3244 "usgmap:x%x rpi:%x\n", 3245 ndlp, ndlp->nlp_DID, 3246 ndlp->nlp_usg_map, 3247 ndlp->nlp_rpi); 3248 3249 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3250 } 3251 lpfc_unreg_rpi(vports[i], ndlp); 3252 } 3253 } 3254 } 3255 lpfc_destroy_vport_work_array(phba, vports); 3256 3257 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3258 3259 if (phba->wq) 3260 flush_workqueue(phba->wq); 3261 } 3262 3263 /** 3264 * lpfc_offline - Bring a HBA offline 3265 * @phba: pointer to lpfc hba data structure. 3266 * 3267 * This routine actually brings a HBA offline. It stops all the timers 3268 * associated with the HBA, brings down the SLI layer, and eventually 3269 * marks the HBA as in offline state for the upper layer protocol. 3270 **/ 3271 void 3272 lpfc_offline(struct lpfc_hba *phba) 3273 { 3274 struct Scsi_Host *shost; 3275 struct lpfc_vport **vports; 3276 int i; 3277 3278 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3279 return; 3280 3281 /* stop port and all timers associated with this hba */ 3282 lpfc_stop_port(phba); 3283 3284 /* Tear down the local and target port registrations. The 3285 * nvme transports need to cleanup. 3286 */ 3287 lpfc_nvmet_destroy_targetport(phba); 3288 lpfc_nvme_destroy_localport(phba->pport); 3289 3290 vports = lpfc_create_vport_work_array(phba); 3291 if (vports != NULL) 3292 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3293 lpfc_stop_vport_timers(vports[i]); 3294 lpfc_destroy_vport_work_array(phba, vports); 3295 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3296 "0460 Bring Adapter offline\n"); 3297 /* Bring down the SLI Layer and cleanup. The HBA is offline 3298 now. */ 3299 lpfc_sli_hba_down(phba); 3300 spin_lock_irq(&phba->hbalock); 3301 phba->work_ha = 0; 3302 spin_unlock_irq(&phba->hbalock); 3303 vports = lpfc_create_vport_work_array(phba); 3304 if (vports != NULL) 3305 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3306 shost = lpfc_shost_from_vport(vports[i]); 3307 spin_lock_irq(shost->host_lock); 3308 vports[i]->work_port_events = 0; 3309 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3310 spin_unlock_irq(shost->host_lock); 3311 } 3312 lpfc_destroy_vport_work_array(phba, vports); 3313 } 3314 3315 /** 3316 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3317 * @phba: pointer to lpfc hba data structure. 3318 * 3319 * This routine is to free all the SCSI buffers and IOCBs from the driver 3320 * list back to kernel. It is called from lpfc_pci_remove_one to free 3321 * the internal resources before the device is removed from the system. 3322 **/ 3323 static void 3324 lpfc_scsi_free(struct lpfc_hba *phba) 3325 { 3326 struct lpfc_scsi_buf *sb, *sb_next; 3327 3328 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3329 return; 3330 3331 spin_lock_irq(&phba->hbalock); 3332 3333 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3334 3335 spin_lock(&phba->scsi_buf_list_put_lock); 3336 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3337 list) { 3338 list_del(&sb->list); 3339 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3340 sb->dma_handle); 3341 kfree(sb); 3342 phba->total_scsi_bufs--; 3343 } 3344 spin_unlock(&phba->scsi_buf_list_put_lock); 3345 3346 spin_lock(&phba->scsi_buf_list_get_lock); 3347 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3348 list) { 3349 list_del(&sb->list); 3350 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3351 sb->dma_handle); 3352 kfree(sb); 3353 phba->total_scsi_bufs--; 3354 } 3355 spin_unlock(&phba->scsi_buf_list_get_lock); 3356 spin_unlock_irq(&phba->hbalock); 3357 } 3358 /** 3359 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3360 * @phba: pointer to lpfc hba data structure. 3361 * 3362 * This routine is to free all the NVME buffers and IOCBs from the driver 3363 * list back to kernel. It is called from lpfc_pci_remove_one to free 3364 * the internal resources before the device is removed from the system. 3365 **/ 3366 static void 3367 lpfc_nvme_free(struct lpfc_hba *phba) 3368 { 3369 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3370 3371 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3372 return; 3373 3374 spin_lock_irq(&phba->hbalock); 3375 3376 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3377 spin_lock(&phba->nvme_buf_list_put_lock); 3378 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3379 &phba->lpfc_nvme_buf_list_put, list) { 3380 list_del(&lpfc_ncmd->list); 3381 phba->put_nvme_bufs--; 3382 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3383 lpfc_ncmd->dma_handle); 3384 kfree(lpfc_ncmd); 3385 phba->total_nvme_bufs--; 3386 } 3387 spin_unlock(&phba->nvme_buf_list_put_lock); 3388 3389 spin_lock(&phba->nvme_buf_list_get_lock); 3390 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3391 &phba->lpfc_nvme_buf_list_get, list) { 3392 list_del(&lpfc_ncmd->list); 3393 phba->get_nvme_bufs--; 3394 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3395 lpfc_ncmd->dma_handle); 3396 kfree(lpfc_ncmd); 3397 phba->total_nvme_bufs--; 3398 } 3399 spin_unlock(&phba->nvme_buf_list_get_lock); 3400 spin_unlock_irq(&phba->hbalock); 3401 } 3402 /** 3403 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3404 * @phba: pointer to lpfc hba data structure. 3405 * 3406 * This routine first calculates the sizes of the current els and allocated 3407 * scsi sgl lists, and then goes through all sgls to updates the physical 3408 * XRIs assigned due to port function reset. During port initialization, the 3409 * current els and allocated scsi sgl lists are 0s. 3410 * 3411 * Return codes 3412 * 0 - successful (for now, it always returns 0) 3413 **/ 3414 int 3415 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3416 { 3417 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3418 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3419 LIST_HEAD(els_sgl_list); 3420 int rc; 3421 3422 /* 3423 * update on pci function's els xri-sgl list 3424 */ 3425 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3426 3427 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3428 /* els xri-sgl expanded */ 3429 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3430 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3431 "3157 ELS xri-sgl count increased from " 3432 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3433 els_xri_cnt); 3434 /* allocate the additional els sgls */ 3435 for (i = 0; i < xri_cnt; i++) { 3436 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3437 GFP_KERNEL); 3438 if (sglq_entry == NULL) { 3439 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3440 "2562 Failure to allocate an " 3441 "ELS sgl entry:%d\n", i); 3442 rc = -ENOMEM; 3443 goto out_free_mem; 3444 } 3445 sglq_entry->buff_type = GEN_BUFF_TYPE; 3446 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3447 &sglq_entry->phys); 3448 if (sglq_entry->virt == NULL) { 3449 kfree(sglq_entry); 3450 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3451 "2563 Failure to allocate an " 3452 "ELS mbuf:%d\n", i); 3453 rc = -ENOMEM; 3454 goto out_free_mem; 3455 } 3456 sglq_entry->sgl = sglq_entry->virt; 3457 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3458 sglq_entry->state = SGL_FREED; 3459 list_add_tail(&sglq_entry->list, &els_sgl_list); 3460 } 3461 spin_lock_irq(&phba->hbalock); 3462 spin_lock(&phba->sli4_hba.sgl_list_lock); 3463 list_splice_init(&els_sgl_list, 3464 &phba->sli4_hba.lpfc_els_sgl_list); 3465 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3466 spin_unlock_irq(&phba->hbalock); 3467 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3468 /* els xri-sgl shrinked */ 3469 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3470 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3471 "3158 ELS xri-sgl count decreased from " 3472 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3473 els_xri_cnt); 3474 spin_lock_irq(&phba->hbalock); 3475 spin_lock(&phba->sli4_hba.sgl_list_lock); 3476 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3477 &els_sgl_list); 3478 /* release extra els sgls from list */ 3479 for (i = 0; i < xri_cnt; i++) { 3480 list_remove_head(&els_sgl_list, 3481 sglq_entry, struct lpfc_sglq, list); 3482 if (sglq_entry) { 3483 __lpfc_mbuf_free(phba, sglq_entry->virt, 3484 sglq_entry->phys); 3485 kfree(sglq_entry); 3486 } 3487 } 3488 list_splice_init(&els_sgl_list, 3489 &phba->sli4_hba.lpfc_els_sgl_list); 3490 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3491 spin_unlock_irq(&phba->hbalock); 3492 } else 3493 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3494 "3163 ELS xri-sgl count unchanged: %d\n", 3495 els_xri_cnt); 3496 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3497 3498 /* update xris to els sgls on the list */ 3499 sglq_entry = NULL; 3500 sglq_entry_next = NULL; 3501 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3502 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3503 lxri = lpfc_sli4_next_xritag(phba); 3504 if (lxri == NO_XRI) { 3505 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3506 "2400 Failed to allocate xri for " 3507 "ELS sgl\n"); 3508 rc = -ENOMEM; 3509 goto out_free_mem; 3510 } 3511 sglq_entry->sli4_lxritag = lxri; 3512 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3513 } 3514 return 0; 3515 3516 out_free_mem: 3517 lpfc_free_els_sgl_list(phba); 3518 return rc; 3519 } 3520 3521 /** 3522 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3523 * @phba: pointer to lpfc hba data structure. 3524 * 3525 * This routine first calculates the sizes of the current els and allocated 3526 * scsi sgl lists, and then goes through all sgls to updates the physical 3527 * XRIs assigned due to port function reset. During port initialization, the 3528 * current els and allocated scsi sgl lists are 0s. 3529 * 3530 * Return codes 3531 * 0 - successful (for now, it always returns 0) 3532 **/ 3533 int 3534 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3535 { 3536 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3537 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3538 uint16_t nvmet_xri_cnt; 3539 LIST_HEAD(nvmet_sgl_list); 3540 int rc; 3541 3542 /* 3543 * update on pci function's nvmet xri-sgl list 3544 */ 3545 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3546 3547 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3548 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3549 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3550 /* els xri-sgl expanded */ 3551 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3553 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3554 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3555 /* allocate the additional nvmet sgls */ 3556 for (i = 0; i < xri_cnt; i++) { 3557 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3558 GFP_KERNEL); 3559 if (sglq_entry == NULL) { 3560 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3561 "6303 Failure to allocate an " 3562 "NVMET sgl entry:%d\n", i); 3563 rc = -ENOMEM; 3564 goto out_free_mem; 3565 } 3566 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3567 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3568 &sglq_entry->phys); 3569 if (sglq_entry->virt == NULL) { 3570 kfree(sglq_entry); 3571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3572 "6304 Failure to allocate an " 3573 "NVMET buf:%d\n", i); 3574 rc = -ENOMEM; 3575 goto out_free_mem; 3576 } 3577 sglq_entry->sgl = sglq_entry->virt; 3578 memset(sglq_entry->sgl, 0, 3579 phba->cfg_sg_dma_buf_size); 3580 sglq_entry->state = SGL_FREED; 3581 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3582 } 3583 spin_lock_irq(&phba->hbalock); 3584 spin_lock(&phba->sli4_hba.sgl_list_lock); 3585 list_splice_init(&nvmet_sgl_list, 3586 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3587 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3588 spin_unlock_irq(&phba->hbalock); 3589 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3590 /* nvmet xri-sgl shrunk */ 3591 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3592 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3593 "6305 NVMET xri-sgl count decreased from " 3594 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3595 nvmet_xri_cnt); 3596 spin_lock_irq(&phba->hbalock); 3597 spin_lock(&phba->sli4_hba.sgl_list_lock); 3598 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3599 &nvmet_sgl_list); 3600 /* release extra nvmet sgls from list */ 3601 for (i = 0; i < xri_cnt; i++) { 3602 list_remove_head(&nvmet_sgl_list, 3603 sglq_entry, struct lpfc_sglq, list); 3604 if (sglq_entry) { 3605 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3606 sglq_entry->phys); 3607 kfree(sglq_entry); 3608 } 3609 } 3610 list_splice_init(&nvmet_sgl_list, 3611 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3612 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3613 spin_unlock_irq(&phba->hbalock); 3614 } else 3615 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3616 "6306 NVMET xri-sgl count unchanged: %d\n", 3617 nvmet_xri_cnt); 3618 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3619 3620 /* update xris to nvmet sgls on the list */ 3621 sglq_entry = NULL; 3622 sglq_entry_next = NULL; 3623 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3624 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3625 lxri = lpfc_sli4_next_xritag(phba); 3626 if (lxri == NO_XRI) { 3627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3628 "6307 Failed to allocate xri for " 3629 "NVMET sgl\n"); 3630 rc = -ENOMEM; 3631 goto out_free_mem; 3632 } 3633 sglq_entry->sli4_lxritag = lxri; 3634 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3635 } 3636 return 0; 3637 3638 out_free_mem: 3639 lpfc_free_nvmet_sgl_list(phba); 3640 return rc; 3641 } 3642 3643 /** 3644 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3645 * @phba: pointer to lpfc hba data structure. 3646 * 3647 * This routine first calculates the sizes of the current els and allocated 3648 * scsi sgl lists, and then goes through all sgls to updates the physical 3649 * XRIs assigned due to port function reset. During port initialization, the 3650 * current els and allocated scsi sgl lists are 0s. 3651 * 3652 * Return codes 3653 * 0 - successful (for now, it always returns 0) 3654 **/ 3655 int 3656 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3657 { 3658 struct lpfc_scsi_buf *psb, *psb_next; 3659 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3660 LIST_HEAD(scsi_sgl_list); 3661 int rc; 3662 3663 /* 3664 * update on pci function's els xri-sgl list 3665 */ 3666 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3667 phba->total_scsi_bufs = 0; 3668 3669 /* 3670 * update on pci function's allocated scsi xri-sgl list 3671 */ 3672 /* maximum number of xris available for scsi buffers */ 3673 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3674 els_xri_cnt; 3675 3676 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3677 return 0; 3678 3679 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3680 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3681 (phba->sli4_hba.scsi_xri_max * 3682 phba->cfg_xri_split) / 100; 3683 3684 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3685 spin_lock(&phba->scsi_buf_list_put_lock); 3686 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3687 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3688 spin_unlock(&phba->scsi_buf_list_put_lock); 3689 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3690 3691 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3692 "6060 Current allocated SCSI xri-sgl count:%d, " 3693 "maximum SCSI xri count:%d (split:%d)\n", 3694 phba->sli4_hba.scsi_xri_cnt, 3695 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3696 3697 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3698 /* max scsi xri shrinked below the allocated scsi buffers */ 3699 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3700 phba->sli4_hba.scsi_xri_max; 3701 /* release the extra allocated scsi buffers */ 3702 for (i = 0; i < scsi_xri_cnt; i++) { 3703 list_remove_head(&scsi_sgl_list, psb, 3704 struct lpfc_scsi_buf, list); 3705 if (psb) { 3706 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3707 psb->data, psb->dma_handle); 3708 kfree(psb); 3709 } 3710 } 3711 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3712 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3713 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3714 } 3715 3716 /* update xris associated to remaining allocated scsi buffers */ 3717 psb = NULL; 3718 psb_next = NULL; 3719 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3720 lxri = lpfc_sli4_next_xritag(phba); 3721 if (lxri == NO_XRI) { 3722 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3723 "2560 Failed to allocate xri for " 3724 "scsi buffer\n"); 3725 rc = -ENOMEM; 3726 goto out_free_mem; 3727 } 3728 psb->cur_iocbq.sli4_lxritag = lxri; 3729 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3730 } 3731 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3732 spin_lock(&phba->scsi_buf_list_put_lock); 3733 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3734 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3735 spin_unlock(&phba->scsi_buf_list_put_lock); 3736 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3737 return 0; 3738 3739 out_free_mem: 3740 lpfc_scsi_free(phba); 3741 return rc; 3742 } 3743 3744 static uint64_t 3745 lpfc_get_wwpn(struct lpfc_hba *phba) 3746 { 3747 uint64_t wwn; 3748 int rc; 3749 LPFC_MBOXQ_t *mboxq; 3750 MAILBOX_t *mb; 3751 3752 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3753 GFP_KERNEL); 3754 if (!mboxq) 3755 return (uint64_t)-1; 3756 3757 /* First get WWN of HBA instance */ 3758 lpfc_read_nv(phba, mboxq); 3759 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3760 if (rc != MBX_SUCCESS) { 3761 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3762 "6019 Mailbox failed , mbxCmd x%x " 3763 "READ_NV, mbxStatus x%x\n", 3764 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3765 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3766 mempool_free(mboxq, phba->mbox_mem_pool); 3767 return (uint64_t) -1; 3768 } 3769 mb = &mboxq->u.mb; 3770 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3771 /* wwn is WWPN of HBA instance */ 3772 mempool_free(mboxq, phba->mbox_mem_pool); 3773 if (phba->sli_rev == LPFC_SLI_REV4) 3774 return be64_to_cpu(wwn); 3775 else 3776 return rol64(wwn, 32); 3777 } 3778 3779 /** 3780 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3781 * @phba: pointer to lpfc hba data structure. 3782 * 3783 * This routine first calculates the sizes of the current els and allocated 3784 * scsi sgl lists, and then goes through all sgls to updates the physical 3785 * XRIs assigned due to port function reset. During port initialization, the 3786 * current els and allocated scsi sgl lists are 0s. 3787 * 3788 * Return codes 3789 * 0 - successful (for now, it always returns 0) 3790 **/ 3791 int 3792 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3793 { 3794 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3795 uint16_t i, lxri, els_xri_cnt; 3796 uint16_t nvme_xri_cnt, nvme_xri_max; 3797 LIST_HEAD(nvme_sgl_list); 3798 int rc, cnt; 3799 3800 phba->total_nvme_bufs = 0; 3801 phba->get_nvme_bufs = 0; 3802 phba->put_nvme_bufs = 0; 3803 3804 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3805 return 0; 3806 /* 3807 * update on pci function's allocated nvme xri-sgl list 3808 */ 3809 3810 /* maximum number of xris available for nvme buffers */ 3811 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3812 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3813 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3814 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3815 3816 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3817 "6074 Current allocated NVME xri-sgl count:%d, " 3818 "maximum NVME xri count:%d\n", 3819 phba->sli4_hba.nvme_xri_cnt, 3820 phba->sli4_hba.nvme_xri_max); 3821 3822 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3823 spin_lock(&phba->nvme_buf_list_put_lock); 3824 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3825 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3826 cnt = phba->get_nvme_bufs + phba->put_nvme_bufs; 3827 phba->get_nvme_bufs = 0; 3828 phba->put_nvme_bufs = 0; 3829 spin_unlock(&phba->nvme_buf_list_put_lock); 3830 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3831 3832 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3833 /* max nvme xri shrunk below the allocated nvme buffers */ 3834 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3835 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3836 phba->sli4_hba.nvme_xri_max; 3837 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3838 /* release the extra allocated nvme buffers */ 3839 for (i = 0; i < nvme_xri_cnt; i++) { 3840 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3841 struct lpfc_nvme_buf, list); 3842 if (lpfc_ncmd) { 3843 dma_pool_free(phba->lpfc_sg_dma_buf_pool, 3844 lpfc_ncmd->data, 3845 lpfc_ncmd->dma_handle); 3846 kfree(lpfc_ncmd); 3847 } 3848 } 3849 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3850 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3851 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3852 } 3853 3854 /* update xris associated to remaining allocated nvme buffers */ 3855 lpfc_ncmd = NULL; 3856 lpfc_ncmd_next = NULL; 3857 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3858 &nvme_sgl_list, list) { 3859 lxri = lpfc_sli4_next_xritag(phba); 3860 if (lxri == NO_XRI) { 3861 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3862 "6075 Failed to allocate xri for " 3863 "nvme buffer\n"); 3864 rc = -ENOMEM; 3865 goto out_free_mem; 3866 } 3867 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3868 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3869 } 3870 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3871 spin_lock(&phba->nvme_buf_list_put_lock); 3872 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3873 phba->get_nvme_bufs = cnt; 3874 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3875 spin_unlock(&phba->nvme_buf_list_put_lock); 3876 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3877 return 0; 3878 3879 out_free_mem: 3880 lpfc_nvme_free(phba); 3881 return rc; 3882 } 3883 3884 /** 3885 * lpfc_create_port - Create an FC port 3886 * @phba: pointer to lpfc hba data structure. 3887 * @instance: a unique integer ID to this FC port. 3888 * @dev: pointer to the device data structure. 3889 * 3890 * This routine creates a FC port for the upper layer protocol. The FC port 3891 * can be created on top of either a physical port or a virtual port provided 3892 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3893 * and associates the FC port created before adding the shost into the SCSI 3894 * layer. 3895 * 3896 * Return codes 3897 * @vport - pointer to the virtual N_Port data structure. 3898 * NULL - port create failed. 3899 **/ 3900 struct lpfc_vport * 3901 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3902 { 3903 struct lpfc_vport *vport; 3904 struct Scsi_Host *shost = NULL; 3905 int error = 0; 3906 int i; 3907 uint64_t wwn; 3908 bool use_no_reset_hba = false; 3909 int rc; 3910 3911 if (lpfc_no_hba_reset_cnt) { 3912 if (phba->sli_rev < LPFC_SLI_REV4 && 3913 dev == &phba->pcidev->dev) { 3914 /* Reset the port first */ 3915 lpfc_sli_brdrestart(phba); 3916 rc = lpfc_sli_chipset_init(phba); 3917 if (rc) 3918 return NULL; 3919 } 3920 wwn = lpfc_get_wwpn(phba); 3921 } 3922 3923 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3924 if (wwn == lpfc_no_hba_reset[i]) { 3925 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3926 "6020 Setting use_no_reset port=%llx\n", 3927 wwn); 3928 use_no_reset_hba = true; 3929 break; 3930 } 3931 } 3932 3933 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3934 if (dev != &phba->pcidev->dev) { 3935 shost = scsi_host_alloc(&lpfc_vport_template, 3936 sizeof(struct lpfc_vport)); 3937 } else { 3938 if (!use_no_reset_hba) 3939 shost = scsi_host_alloc(&lpfc_template, 3940 sizeof(struct lpfc_vport)); 3941 else 3942 shost = scsi_host_alloc(&lpfc_template_no_hr, 3943 sizeof(struct lpfc_vport)); 3944 } 3945 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3946 shost = scsi_host_alloc(&lpfc_template_nvme, 3947 sizeof(struct lpfc_vport)); 3948 } 3949 if (!shost) 3950 goto out; 3951 3952 vport = (struct lpfc_vport *) shost->hostdata; 3953 vport->phba = phba; 3954 vport->load_flag |= FC_LOADING; 3955 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3956 vport->fc_rscn_flush = 0; 3957 lpfc_get_vport_cfgparam(vport); 3958 3959 shost->unique_id = instance; 3960 shost->max_id = LPFC_MAX_TARGET; 3961 shost->max_lun = vport->cfg_max_luns; 3962 shost->this_id = -1; 3963 shost->max_cmd_len = 16; 3964 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3965 if (phba->sli_rev == LPFC_SLI_REV4) { 3966 shost->dma_boundary = 3967 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3968 shost->sg_tablesize = phba->cfg_scsi_seg_cnt; 3969 } 3970 3971 /* 3972 * Set initial can_queue value since 0 is no longer supported and 3973 * scsi_add_host will fail. This will be adjusted later based on the 3974 * max xri value determined in hba setup. 3975 */ 3976 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3977 if (dev != &phba->pcidev->dev) { 3978 shost->transportt = lpfc_vport_transport_template; 3979 vport->port_type = LPFC_NPIV_PORT; 3980 } else { 3981 shost->transportt = lpfc_transport_template; 3982 vport->port_type = LPFC_PHYSICAL_PORT; 3983 } 3984 3985 /* Initialize all internally managed lists. */ 3986 INIT_LIST_HEAD(&vport->fc_nodes); 3987 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3988 spin_lock_init(&vport->work_port_lock); 3989 3990 timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); 3991 3992 timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); 3993 3994 timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); 3995 3996 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3997 if (error) 3998 goto out_put_shost; 3999 4000 spin_lock_irq(&phba->port_list_lock); 4001 list_add_tail(&vport->listentry, &phba->port_list); 4002 spin_unlock_irq(&phba->port_list_lock); 4003 return vport; 4004 4005 out_put_shost: 4006 scsi_host_put(shost); 4007 out: 4008 return NULL; 4009 } 4010 4011 /** 4012 * destroy_port - destroy an FC port 4013 * @vport: pointer to an lpfc virtual N_Port data structure. 4014 * 4015 * This routine destroys a FC port from the upper layer protocol. All the 4016 * resources associated with the port are released. 4017 **/ 4018 void 4019 destroy_port(struct lpfc_vport *vport) 4020 { 4021 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 4022 struct lpfc_hba *phba = vport->phba; 4023 4024 lpfc_debugfs_terminate(vport); 4025 fc_remove_host(shost); 4026 scsi_remove_host(shost); 4027 4028 spin_lock_irq(&phba->port_list_lock); 4029 list_del_init(&vport->listentry); 4030 spin_unlock_irq(&phba->port_list_lock); 4031 4032 lpfc_cleanup(vport); 4033 return; 4034 } 4035 4036 /** 4037 * lpfc_get_instance - Get a unique integer ID 4038 * 4039 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 4040 * uses the kernel idr facility to perform the task. 4041 * 4042 * Return codes: 4043 * instance - a unique integer ID allocated as the new instance. 4044 * -1 - lpfc get instance failed. 4045 **/ 4046 int 4047 lpfc_get_instance(void) 4048 { 4049 int ret; 4050 4051 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 4052 return ret < 0 ? -1 : ret; 4053 } 4054 4055 /** 4056 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 4057 * @shost: pointer to SCSI host data structure. 4058 * @time: elapsed time of the scan in jiffies. 4059 * 4060 * This routine is called by the SCSI layer with a SCSI host to determine 4061 * whether the scan host is finished. 4062 * 4063 * Note: there is no scan_start function as adapter initialization will have 4064 * asynchronously kicked off the link initialization. 4065 * 4066 * Return codes 4067 * 0 - SCSI host scan is not over yet. 4068 * 1 - SCSI host scan is over. 4069 **/ 4070 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4071 { 4072 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4073 struct lpfc_hba *phba = vport->phba; 4074 int stat = 0; 4075 4076 spin_lock_irq(shost->host_lock); 4077 4078 if (vport->load_flag & FC_UNLOADING) { 4079 stat = 1; 4080 goto finished; 4081 } 4082 if (time >= msecs_to_jiffies(30 * 1000)) { 4083 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4084 "0461 Scanning longer than 30 " 4085 "seconds. Continuing initialization\n"); 4086 stat = 1; 4087 goto finished; 4088 } 4089 if (time >= msecs_to_jiffies(15 * 1000) && 4090 phba->link_state <= LPFC_LINK_DOWN) { 4091 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4092 "0465 Link down longer than 15 " 4093 "seconds. Continuing initialization\n"); 4094 stat = 1; 4095 goto finished; 4096 } 4097 4098 if (vport->port_state != LPFC_VPORT_READY) 4099 goto finished; 4100 if (vport->num_disc_nodes || vport->fc_prli_sent) 4101 goto finished; 4102 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4103 goto finished; 4104 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4105 goto finished; 4106 4107 stat = 1; 4108 4109 finished: 4110 spin_unlock_irq(shost->host_lock); 4111 return stat; 4112 } 4113 4114 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost) 4115 { 4116 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; 4117 struct lpfc_hba *phba = vport->phba; 4118 4119 fc_host_supported_speeds(shost) = 0; 4120 if (phba->lmt & LMT_128Gb) 4121 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT; 4122 if (phba->lmt & LMT_64Gb) 4123 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT; 4124 if (phba->lmt & LMT_32Gb) 4125 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4126 if (phba->lmt & LMT_16Gb) 4127 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4128 if (phba->lmt & LMT_10Gb) 4129 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4130 if (phba->lmt & LMT_8Gb) 4131 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4132 if (phba->lmt & LMT_4Gb) 4133 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4134 if (phba->lmt & LMT_2Gb) 4135 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4136 if (phba->lmt & LMT_1Gb) 4137 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4138 } 4139 4140 /** 4141 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4142 * @shost: pointer to SCSI host data structure. 4143 * 4144 * This routine initializes a given SCSI host attributes on a FC port. The 4145 * SCSI host can be either on top of a physical port or a virtual port. 4146 **/ 4147 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4148 { 4149 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4150 struct lpfc_hba *phba = vport->phba; 4151 /* 4152 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4153 */ 4154 4155 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4156 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4157 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4158 4159 memset(fc_host_supported_fc4s(shost), 0, 4160 sizeof(fc_host_supported_fc4s(shost))); 4161 fc_host_supported_fc4s(shost)[2] = 1; 4162 fc_host_supported_fc4s(shost)[7] = 1; 4163 4164 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4165 sizeof fc_host_symbolic_name(shost)); 4166 4167 lpfc_host_supported_speeds_set(shost); 4168 4169 fc_host_maxframe_size(shost) = 4170 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4171 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4172 4173 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4174 4175 /* This value is also unchanging */ 4176 memset(fc_host_active_fc4s(shost), 0, 4177 sizeof(fc_host_active_fc4s(shost))); 4178 fc_host_active_fc4s(shost)[2] = 1; 4179 fc_host_active_fc4s(shost)[7] = 1; 4180 4181 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4182 spin_lock_irq(shost->host_lock); 4183 vport->load_flag &= ~FC_LOADING; 4184 spin_unlock_irq(shost->host_lock); 4185 } 4186 4187 /** 4188 * lpfc_stop_port_s3 - Stop SLI3 device port 4189 * @phba: pointer to lpfc hba data structure. 4190 * 4191 * This routine is invoked to stop an SLI3 device port, it stops the device 4192 * from generating interrupts and stops the device driver's timers for the 4193 * device. 4194 **/ 4195 static void 4196 lpfc_stop_port_s3(struct lpfc_hba *phba) 4197 { 4198 /* Clear all interrupt enable conditions */ 4199 writel(0, phba->HCregaddr); 4200 readl(phba->HCregaddr); /* flush */ 4201 /* Clear all pending interrupts */ 4202 writel(0xffffffff, phba->HAregaddr); 4203 readl(phba->HAregaddr); /* flush */ 4204 4205 /* Reset some HBA SLI setup states */ 4206 lpfc_stop_hba_timers(phba); 4207 phba->pport->work_port_events = 0; 4208 } 4209 4210 /** 4211 * lpfc_stop_port_s4 - Stop SLI4 device port 4212 * @phba: pointer to lpfc hba data structure. 4213 * 4214 * This routine is invoked to stop an SLI4 device port, it stops the device 4215 * from generating interrupts and stops the device driver's timers for the 4216 * device. 4217 **/ 4218 static void 4219 lpfc_stop_port_s4(struct lpfc_hba *phba) 4220 { 4221 /* Reset some HBA SLI4 setup states */ 4222 lpfc_stop_hba_timers(phba); 4223 phba->pport->work_port_events = 0; 4224 phba->sli4_hba.intr_enable = 0; 4225 } 4226 4227 /** 4228 * lpfc_stop_port - Wrapper function for stopping hba port 4229 * @phba: Pointer to HBA context object. 4230 * 4231 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4232 * the API jump table function pointer from the lpfc_hba struct. 4233 **/ 4234 void 4235 lpfc_stop_port(struct lpfc_hba *phba) 4236 { 4237 phba->lpfc_stop_port(phba); 4238 4239 if (phba->wq) 4240 flush_workqueue(phba->wq); 4241 } 4242 4243 /** 4244 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4245 * @phba: Pointer to hba for which this call is being executed. 4246 * 4247 * This routine starts the timer waiting for the FCF rediscovery to complete. 4248 **/ 4249 void 4250 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4251 { 4252 unsigned long fcf_redisc_wait_tmo = 4253 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4254 /* Start fcf rediscovery wait period timer */ 4255 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4256 spin_lock_irq(&phba->hbalock); 4257 /* Allow action to new fcf asynchronous event */ 4258 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4259 /* Mark the FCF rediscovery pending state */ 4260 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4261 spin_unlock_irq(&phba->hbalock); 4262 } 4263 4264 /** 4265 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4266 * @ptr: Map to lpfc_hba data structure pointer. 4267 * 4268 * This routine is invoked when waiting for FCF table rediscover has been 4269 * timed out. If new FCF record(s) has (have) been discovered during the 4270 * wait period, a new FCF event shall be added to the FCOE async event 4271 * list, and then worker thread shall be waked up for processing from the 4272 * worker thread context. 4273 **/ 4274 static void 4275 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) 4276 { 4277 struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); 4278 4279 /* Don't send FCF rediscovery event if timer cancelled */ 4280 spin_lock_irq(&phba->hbalock); 4281 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4282 spin_unlock_irq(&phba->hbalock); 4283 return; 4284 } 4285 /* Clear FCF rediscovery timer pending flag */ 4286 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4287 /* FCF rediscovery event to worker thread */ 4288 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4289 spin_unlock_irq(&phba->hbalock); 4290 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4291 "2776 FCF rediscover quiescent timer expired\n"); 4292 /* wake up worker thread */ 4293 lpfc_worker_wake_up(phba); 4294 } 4295 4296 /** 4297 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4298 * @phba: pointer to lpfc hba data structure. 4299 * @acqe_link: pointer to the async link completion queue entry. 4300 * 4301 * This routine is to parse the SLI4 link-attention link fault code. 4302 **/ 4303 static void 4304 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4305 struct lpfc_acqe_link *acqe_link) 4306 { 4307 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4308 case LPFC_ASYNC_LINK_FAULT_NONE: 4309 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4310 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4311 case LPFC_ASYNC_LINK_FAULT_LR_LRR: 4312 break; 4313 default: 4314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4315 "0398 Unknown link fault code: x%x\n", 4316 bf_get(lpfc_acqe_link_fault, acqe_link)); 4317 break; 4318 } 4319 } 4320 4321 /** 4322 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4323 * @phba: pointer to lpfc hba data structure. 4324 * @acqe_link: pointer to the async link completion queue entry. 4325 * 4326 * This routine is to parse the SLI4 link attention type and translate it 4327 * into the base driver's link attention type coding. 4328 * 4329 * Return: Link attention type in terms of base driver's coding. 4330 **/ 4331 static uint8_t 4332 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4333 struct lpfc_acqe_link *acqe_link) 4334 { 4335 uint8_t att_type; 4336 4337 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4338 case LPFC_ASYNC_LINK_STATUS_DOWN: 4339 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4340 att_type = LPFC_ATT_LINK_DOWN; 4341 break; 4342 case LPFC_ASYNC_LINK_STATUS_UP: 4343 /* Ignore physical link up events - wait for logical link up */ 4344 att_type = LPFC_ATT_RESERVED; 4345 break; 4346 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4347 att_type = LPFC_ATT_LINK_UP; 4348 break; 4349 default: 4350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4351 "0399 Invalid link attention type: x%x\n", 4352 bf_get(lpfc_acqe_link_status, acqe_link)); 4353 att_type = LPFC_ATT_RESERVED; 4354 break; 4355 } 4356 return att_type; 4357 } 4358 4359 /** 4360 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4361 * @phba: pointer to lpfc hba data structure. 4362 * 4363 * This routine is to get an SLI3 FC port's link speed in Mbps. 4364 * 4365 * Return: link speed in terms of Mbps. 4366 **/ 4367 uint32_t 4368 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4369 { 4370 uint32_t link_speed; 4371 4372 if (!lpfc_is_link_up(phba)) 4373 return 0; 4374 4375 if (phba->sli_rev <= LPFC_SLI_REV3) { 4376 switch (phba->fc_linkspeed) { 4377 case LPFC_LINK_SPEED_1GHZ: 4378 link_speed = 1000; 4379 break; 4380 case LPFC_LINK_SPEED_2GHZ: 4381 link_speed = 2000; 4382 break; 4383 case LPFC_LINK_SPEED_4GHZ: 4384 link_speed = 4000; 4385 break; 4386 case LPFC_LINK_SPEED_8GHZ: 4387 link_speed = 8000; 4388 break; 4389 case LPFC_LINK_SPEED_10GHZ: 4390 link_speed = 10000; 4391 break; 4392 case LPFC_LINK_SPEED_16GHZ: 4393 link_speed = 16000; 4394 break; 4395 default: 4396 link_speed = 0; 4397 } 4398 } else { 4399 if (phba->sli4_hba.link_state.logical_speed) 4400 link_speed = 4401 phba->sli4_hba.link_state.logical_speed; 4402 else 4403 link_speed = phba->sli4_hba.link_state.speed; 4404 } 4405 return link_speed; 4406 } 4407 4408 /** 4409 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4410 * @phba: pointer to lpfc hba data structure. 4411 * @evt_code: asynchronous event code. 4412 * @speed_code: asynchronous event link speed code. 4413 * 4414 * This routine is to parse the giving SLI4 async event link speed code into 4415 * value of Mbps for the link speed. 4416 * 4417 * Return: link speed in terms of Mbps. 4418 **/ 4419 static uint32_t 4420 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4421 uint8_t speed_code) 4422 { 4423 uint32_t port_speed; 4424 4425 switch (evt_code) { 4426 case LPFC_TRAILER_CODE_LINK: 4427 switch (speed_code) { 4428 case LPFC_ASYNC_LINK_SPEED_ZERO: 4429 port_speed = 0; 4430 break; 4431 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4432 port_speed = 10; 4433 break; 4434 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4435 port_speed = 100; 4436 break; 4437 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4438 port_speed = 1000; 4439 break; 4440 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4441 port_speed = 10000; 4442 break; 4443 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4444 port_speed = 20000; 4445 break; 4446 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4447 port_speed = 25000; 4448 break; 4449 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4450 port_speed = 40000; 4451 break; 4452 default: 4453 port_speed = 0; 4454 } 4455 break; 4456 case LPFC_TRAILER_CODE_FC: 4457 switch (speed_code) { 4458 case LPFC_FC_LA_SPEED_UNKNOWN: 4459 port_speed = 0; 4460 break; 4461 case LPFC_FC_LA_SPEED_1G: 4462 port_speed = 1000; 4463 break; 4464 case LPFC_FC_LA_SPEED_2G: 4465 port_speed = 2000; 4466 break; 4467 case LPFC_FC_LA_SPEED_4G: 4468 port_speed = 4000; 4469 break; 4470 case LPFC_FC_LA_SPEED_8G: 4471 port_speed = 8000; 4472 break; 4473 case LPFC_FC_LA_SPEED_10G: 4474 port_speed = 10000; 4475 break; 4476 case LPFC_FC_LA_SPEED_16G: 4477 port_speed = 16000; 4478 break; 4479 case LPFC_FC_LA_SPEED_32G: 4480 port_speed = 32000; 4481 break; 4482 case LPFC_FC_LA_SPEED_64G: 4483 port_speed = 64000; 4484 break; 4485 case LPFC_FC_LA_SPEED_128G: 4486 port_speed = 128000; 4487 break; 4488 default: 4489 port_speed = 0; 4490 } 4491 break; 4492 default: 4493 port_speed = 0; 4494 } 4495 return port_speed; 4496 } 4497 4498 /** 4499 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4500 * @phba: pointer to lpfc hba data structure. 4501 * @acqe_link: pointer to the async link completion queue entry. 4502 * 4503 * This routine is to handle the SLI4 asynchronous FCoE link event. 4504 **/ 4505 static void 4506 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4507 struct lpfc_acqe_link *acqe_link) 4508 { 4509 struct lpfc_dmabuf *mp; 4510 LPFC_MBOXQ_t *pmb; 4511 MAILBOX_t *mb; 4512 struct lpfc_mbx_read_top *la; 4513 uint8_t att_type; 4514 int rc; 4515 4516 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4517 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4518 return; 4519 phba->fcoe_eventtag = acqe_link->event_tag; 4520 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4521 if (!pmb) { 4522 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4523 "0395 The mboxq allocation failed\n"); 4524 return; 4525 } 4526 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4527 if (!mp) { 4528 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4529 "0396 The lpfc_dmabuf allocation failed\n"); 4530 goto out_free_pmb; 4531 } 4532 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4533 if (!mp->virt) { 4534 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4535 "0397 The mbuf allocation failed\n"); 4536 goto out_free_dmabuf; 4537 } 4538 4539 /* Cleanup any outstanding ELS commands */ 4540 lpfc_els_flush_all_cmd(phba); 4541 4542 /* Block ELS IOCBs until we have done process link event */ 4543 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4544 4545 /* Update link event statistics */ 4546 phba->sli.slistat.link_event++; 4547 4548 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4549 lpfc_read_topology(phba, pmb, mp); 4550 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4551 pmb->vport = phba->pport; 4552 4553 /* Keep the link status for extra SLI4 state machine reference */ 4554 phba->sli4_hba.link_state.speed = 4555 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4556 bf_get(lpfc_acqe_link_speed, acqe_link)); 4557 phba->sli4_hba.link_state.duplex = 4558 bf_get(lpfc_acqe_link_duplex, acqe_link); 4559 phba->sli4_hba.link_state.status = 4560 bf_get(lpfc_acqe_link_status, acqe_link); 4561 phba->sli4_hba.link_state.type = 4562 bf_get(lpfc_acqe_link_type, acqe_link); 4563 phba->sli4_hba.link_state.number = 4564 bf_get(lpfc_acqe_link_number, acqe_link); 4565 phba->sli4_hba.link_state.fault = 4566 bf_get(lpfc_acqe_link_fault, acqe_link); 4567 phba->sli4_hba.link_state.logical_speed = 4568 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4569 4570 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4571 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4572 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4573 "Logical speed:%dMbps Fault:%d\n", 4574 phba->sli4_hba.link_state.speed, 4575 phba->sli4_hba.link_state.topology, 4576 phba->sli4_hba.link_state.status, 4577 phba->sli4_hba.link_state.type, 4578 phba->sli4_hba.link_state.number, 4579 phba->sli4_hba.link_state.logical_speed, 4580 phba->sli4_hba.link_state.fault); 4581 /* 4582 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4583 * topology info. Note: Optional for non FC-AL ports. 4584 */ 4585 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4586 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4587 if (rc == MBX_NOT_FINISHED) 4588 goto out_free_dmabuf; 4589 return; 4590 } 4591 /* 4592 * For FCoE Mode: fill in all the topology information we need and call 4593 * the READ_TOPOLOGY completion routine to continue without actually 4594 * sending the READ_TOPOLOGY mailbox command to the port. 4595 */ 4596 /* Initialize completion status */ 4597 mb = &pmb->u.mb; 4598 mb->mbxStatus = MBX_SUCCESS; 4599 4600 /* Parse port fault information field */ 4601 lpfc_sli4_parse_latt_fault(phba, acqe_link); 4602 4603 /* Parse and translate link attention fields */ 4604 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4605 la->eventTag = acqe_link->event_tag; 4606 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4607 bf_set(lpfc_mbx_read_top_link_spd, la, 4608 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4609 4610 /* Fake the the following irrelvant fields */ 4611 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4612 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4613 bf_set(lpfc_mbx_read_top_il, la, 0); 4614 bf_set(lpfc_mbx_read_top_pb, la, 0); 4615 bf_set(lpfc_mbx_read_top_fa, la, 0); 4616 bf_set(lpfc_mbx_read_top_mm, la, 0); 4617 4618 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4619 lpfc_mbx_cmpl_read_topology(phba, pmb); 4620 4621 return; 4622 4623 out_free_dmabuf: 4624 kfree(mp); 4625 out_free_pmb: 4626 mempool_free(pmb, phba->mbox_mem_pool); 4627 } 4628 4629 /** 4630 * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read 4631 * topology. 4632 * @phba: pointer to lpfc hba data structure. 4633 * @evt_code: asynchronous event code. 4634 * @speed_code: asynchronous event link speed code. 4635 * 4636 * This routine is to parse the giving SLI4 async event link speed code into 4637 * value of Read topology link speed. 4638 * 4639 * Return: link speed in terms of Read topology. 4640 **/ 4641 static uint8_t 4642 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code) 4643 { 4644 uint8_t port_speed; 4645 4646 switch (speed_code) { 4647 case LPFC_FC_LA_SPEED_1G: 4648 port_speed = LPFC_LINK_SPEED_1GHZ; 4649 break; 4650 case LPFC_FC_LA_SPEED_2G: 4651 port_speed = LPFC_LINK_SPEED_2GHZ; 4652 break; 4653 case LPFC_FC_LA_SPEED_4G: 4654 port_speed = LPFC_LINK_SPEED_4GHZ; 4655 break; 4656 case LPFC_FC_LA_SPEED_8G: 4657 port_speed = LPFC_LINK_SPEED_8GHZ; 4658 break; 4659 case LPFC_FC_LA_SPEED_16G: 4660 port_speed = LPFC_LINK_SPEED_16GHZ; 4661 break; 4662 case LPFC_FC_LA_SPEED_32G: 4663 port_speed = LPFC_LINK_SPEED_32GHZ; 4664 break; 4665 case LPFC_FC_LA_SPEED_64G: 4666 port_speed = LPFC_LINK_SPEED_64GHZ; 4667 break; 4668 case LPFC_FC_LA_SPEED_128G: 4669 port_speed = LPFC_LINK_SPEED_128GHZ; 4670 break; 4671 case LPFC_FC_LA_SPEED_256G: 4672 port_speed = LPFC_LINK_SPEED_256GHZ; 4673 break; 4674 default: 4675 port_speed = 0; 4676 break; 4677 } 4678 4679 return port_speed; 4680 } 4681 4682 #define trunk_link_status(__idx)\ 4683 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\ 4684 ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\ 4685 "Link up" : "Link down") : "NA" 4686 /* Did port __idx reported an error */ 4687 #define trunk_port_fault(__idx)\ 4688 bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\ 4689 (port_fault & (1 << __idx) ? "YES" : "NO") : "NA" 4690 4691 static void 4692 lpfc_update_trunk_link_status(struct lpfc_hba *phba, 4693 struct lpfc_acqe_fc_la *acqe_fc) 4694 { 4695 uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc); 4696 uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc); 4697 4698 phba->sli4_hba.link_state.speed = 4699 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4700 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4701 4702 phba->sli4_hba.link_state.logical_speed = 4703 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 4704 /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */ 4705 phba->fc_linkspeed = 4706 lpfc_async_link_speed_to_read_top( 4707 phba, 4708 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4709 4710 if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) { 4711 phba->trunk_link.link0.state = 4712 bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc) 4713 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 4714 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0; 4715 } 4716 if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) { 4717 phba->trunk_link.link1.state = 4718 bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc) 4719 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 4720 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0; 4721 } 4722 if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) { 4723 phba->trunk_link.link2.state = 4724 bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc) 4725 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 4726 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0; 4727 } 4728 if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) { 4729 phba->trunk_link.link3.state = 4730 bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc) 4731 ? LPFC_LINK_UP : LPFC_LINK_DOWN; 4732 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0; 4733 } 4734 4735 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4736 "2910 Async FC Trunking Event - Speed:%d\n" 4737 "\tLogical speed:%d " 4738 "port0: %s port1: %s port2: %s port3: %s\n", 4739 phba->sli4_hba.link_state.speed, 4740 phba->sli4_hba.link_state.logical_speed, 4741 trunk_link_status(0), trunk_link_status(1), 4742 trunk_link_status(2), trunk_link_status(3)); 4743 4744 if (port_fault) 4745 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4746 "3202 trunk error:0x%x (%s) seen on port0:%s " 4747 /* 4748 * SLI-4: We have only 0xA error codes 4749 * defined as of now. print an appropriate 4750 * message in case driver needs to be updated. 4751 */ 4752 "port1:%s port2:%s port3:%s\n", err, err > 0xA ? 4753 "UNDEFINED. update driver." : trunk_errmsg[err], 4754 trunk_port_fault(0), trunk_port_fault(1), 4755 trunk_port_fault(2), trunk_port_fault(3)); 4756 } 4757 4758 4759 /** 4760 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4761 * @phba: pointer to lpfc hba data structure. 4762 * @acqe_fc: pointer to the async fc completion queue entry. 4763 * 4764 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4765 * that the event was received and then issue a read_topology mailbox command so 4766 * that the rest of the driver will treat it the same as SLI3. 4767 **/ 4768 static void 4769 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4770 { 4771 struct lpfc_dmabuf *mp; 4772 LPFC_MBOXQ_t *pmb; 4773 MAILBOX_t *mb; 4774 struct lpfc_mbx_read_top *la; 4775 int rc; 4776 4777 if (bf_get(lpfc_trailer_type, acqe_fc) != 4778 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4779 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4780 "2895 Non FC link Event detected.(%d)\n", 4781 bf_get(lpfc_trailer_type, acqe_fc)); 4782 return; 4783 } 4784 4785 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) == 4786 LPFC_FC_LA_TYPE_TRUNKING_EVENT) { 4787 lpfc_update_trunk_link_status(phba, acqe_fc); 4788 return; 4789 } 4790 4791 /* Keep the link status for extra SLI4 state machine reference */ 4792 phba->sli4_hba.link_state.speed = 4793 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4794 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4795 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4796 phba->sli4_hba.link_state.topology = 4797 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4798 phba->sli4_hba.link_state.status = 4799 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4800 phba->sli4_hba.link_state.type = 4801 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4802 phba->sli4_hba.link_state.number = 4803 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4804 phba->sli4_hba.link_state.fault = 4805 bf_get(lpfc_acqe_link_fault, acqe_fc); 4806 phba->sli4_hba.link_state.logical_speed = 4807 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4808 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4809 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4810 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4811 "%dMbps Fault:%d\n", 4812 phba->sli4_hba.link_state.speed, 4813 phba->sli4_hba.link_state.topology, 4814 phba->sli4_hba.link_state.status, 4815 phba->sli4_hba.link_state.type, 4816 phba->sli4_hba.link_state.number, 4817 phba->sli4_hba.link_state.logical_speed, 4818 phba->sli4_hba.link_state.fault); 4819 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4820 if (!pmb) { 4821 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4822 "2897 The mboxq allocation failed\n"); 4823 return; 4824 } 4825 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4826 if (!mp) { 4827 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4828 "2898 The lpfc_dmabuf allocation failed\n"); 4829 goto out_free_pmb; 4830 } 4831 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4832 if (!mp->virt) { 4833 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4834 "2899 The mbuf allocation failed\n"); 4835 goto out_free_dmabuf; 4836 } 4837 4838 /* Cleanup any outstanding ELS commands */ 4839 lpfc_els_flush_all_cmd(phba); 4840 4841 /* Block ELS IOCBs until we have done process link event */ 4842 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4843 4844 /* Update link event statistics */ 4845 phba->sli.slistat.link_event++; 4846 4847 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4848 lpfc_read_topology(phba, pmb, mp); 4849 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4850 pmb->vport = phba->pport; 4851 4852 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4853 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4854 4855 switch (phba->sli4_hba.link_state.status) { 4856 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4857 phba->link_flag |= LS_MDS_LINK_DOWN; 4858 break; 4859 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4860 phba->link_flag |= LS_MDS_LOOPBACK; 4861 break; 4862 default: 4863 break; 4864 } 4865 4866 /* Initialize completion status */ 4867 mb = &pmb->u.mb; 4868 mb->mbxStatus = MBX_SUCCESS; 4869 4870 /* Parse port fault information field */ 4871 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc); 4872 4873 /* Parse and translate link attention fields */ 4874 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4875 la->eventTag = acqe_fc->event_tag; 4876 4877 if (phba->sli4_hba.link_state.status == 4878 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4879 bf_set(lpfc_mbx_read_top_att_type, la, 4880 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4881 } else { 4882 bf_set(lpfc_mbx_read_top_att_type, la, 4883 LPFC_FC_LA_TYPE_LINK_DOWN); 4884 } 4885 /* Invoke the mailbox command callback function */ 4886 lpfc_mbx_cmpl_read_topology(phba, pmb); 4887 4888 return; 4889 } 4890 4891 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4892 if (rc == MBX_NOT_FINISHED) 4893 goto out_free_dmabuf; 4894 return; 4895 4896 out_free_dmabuf: 4897 kfree(mp); 4898 out_free_pmb: 4899 mempool_free(pmb, phba->mbox_mem_pool); 4900 } 4901 4902 /** 4903 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4904 * @phba: pointer to lpfc hba data structure. 4905 * @acqe_fc: pointer to the async SLI completion queue entry. 4906 * 4907 * This routine is to handle the SLI4 asynchronous SLI events. 4908 **/ 4909 static void 4910 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4911 { 4912 char port_name; 4913 char message[128]; 4914 uint8_t status; 4915 uint8_t evt_type; 4916 uint8_t operational = 0; 4917 struct temp_event temp_event_data; 4918 struct lpfc_acqe_misconfigured_event *misconfigured; 4919 struct Scsi_Host *shost; 4920 struct lpfc_vport **vports; 4921 int rc, i; 4922 4923 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4924 4925 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4926 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4927 "x%08x SLI Event Type:%d\n", 4928 acqe_sli->event_data1, acqe_sli->event_data2, 4929 evt_type); 4930 4931 port_name = phba->Port[0]; 4932 if (port_name == 0x00) 4933 port_name = '?'; /* get port name is empty */ 4934 4935 switch (evt_type) { 4936 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4937 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4938 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4939 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4940 4941 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4942 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4943 acqe_sli->event_data1, port_name); 4944 4945 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4946 shost = lpfc_shost_from_vport(phba->pport); 4947 fc_host_post_vendor_event(shost, fc_get_event_number(), 4948 sizeof(temp_event_data), 4949 (char *)&temp_event_data, 4950 SCSI_NL_VID_TYPE_PCI 4951 | PCI_VENDOR_ID_EMULEX); 4952 break; 4953 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4954 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4955 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4956 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4957 4958 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4959 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4960 acqe_sli->event_data1, port_name); 4961 4962 shost = lpfc_shost_from_vport(phba->pport); 4963 fc_host_post_vendor_event(shost, fc_get_event_number(), 4964 sizeof(temp_event_data), 4965 (char *)&temp_event_data, 4966 SCSI_NL_VID_TYPE_PCI 4967 | PCI_VENDOR_ID_EMULEX); 4968 break; 4969 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4970 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4971 &acqe_sli->event_data1; 4972 4973 /* fetch the status for this port */ 4974 switch (phba->sli4_hba.lnk_info.lnk_no) { 4975 case LPFC_LINK_NUMBER_0: 4976 status = bf_get(lpfc_sli_misconfigured_port0_state, 4977 &misconfigured->theEvent); 4978 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4979 &misconfigured->theEvent); 4980 break; 4981 case LPFC_LINK_NUMBER_1: 4982 status = bf_get(lpfc_sli_misconfigured_port1_state, 4983 &misconfigured->theEvent); 4984 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4985 &misconfigured->theEvent); 4986 break; 4987 case LPFC_LINK_NUMBER_2: 4988 status = bf_get(lpfc_sli_misconfigured_port2_state, 4989 &misconfigured->theEvent); 4990 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4991 &misconfigured->theEvent); 4992 break; 4993 case LPFC_LINK_NUMBER_3: 4994 status = bf_get(lpfc_sli_misconfigured_port3_state, 4995 &misconfigured->theEvent); 4996 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4997 &misconfigured->theEvent); 4998 break; 4999 default: 5000 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5001 "3296 " 5002 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 5003 "event: Invalid link %d", 5004 phba->sli4_hba.lnk_info.lnk_no); 5005 return; 5006 } 5007 5008 /* Skip if optic state unchanged */ 5009 if (phba->sli4_hba.lnk_info.optic_state == status) 5010 return; 5011 5012 switch (status) { 5013 case LPFC_SLI_EVENT_STATUS_VALID: 5014 sprintf(message, "Physical Link is functional"); 5015 break; 5016 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 5017 sprintf(message, "Optics faulted/incorrectly " 5018 "installed/not installed - Reseat optics, " 5019 "if issue not resolved, replace."); 5020 break; 5021 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 5022 sprintf(message, 5023 "Optics of two types installed - Remove one " 5024 "optic or install matching pair of optics."); 5025 break; 5026 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 5027 sprintf(message, "Incompatible optics - Replace with " 5028 "compatible optics for card to function."); 5029 break; 5030 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 5031 sprintf(message, "Unqualified optics - Replace with " 5032 "Avago optics for Warranty and Technical " 5033 "Support - Link is%s operational", 5034 (operational) ? " not" : ""); 5035 break; 5036 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 5037 sprintf(message, "Uncertified optics - Replace with " 5038 "Avago-certified optics to enable link " 5039 "operation - Link is%s operational", 5040 (operational) ? " not" : ""); 5041 break; 5042 default: 5043 /* firmware is reporting a status we don't know about */ 5044 sprintf(message, "Unknown event status x%02x", status); 5045 break; 5046 } 5047 5048 /* Issue READ_CONFIG mbox command to refresh supported speeds */ 5049 rc = lpfc_sli4_read_config(phba); 5050 if (rc) { 5051 phba->lmt = 0; 5052 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5053 "3194 Unable to retrieve supported " 5054 "speeds, rc = 0x%x\n", rc); 5055 } 5056 vports = lpfc_create_vport_work_array(phba); 5057 if (vports != NULL) { 5058 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5059 i++) { 5060 shost = lpfc_shost_from_vport(vports[i]); 5061 lpfc_host_supported_speeds_set(shost); 5062 } 5063 } 5064 lpfc_destroy_vport_work_array(phba, vports); 5065 5066 phba->sli4_hba.lnk_info.optic_state = status; 5067 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5068 "3176 Port Name %c %s\n", port_name, message); 5069 break; 5070 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 5071 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5072 "3192 Remote DPort Test Initiated - " 5073 "Event Data1:x%08x Event Data2: x%08x\n", 5074 acqe_sli->event_data1, acqe_sli->event_data2); 5075 break; 5076 default: 5077 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5078 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 5079 "x%08x SLI Event Type:%d\n", 5080 acqe_sli->event_data1, acqe_sli->event_data2, 5081 evt_type); 5082 break; 5083 } 5084 } 5085 5086 /** 5087 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 5088 * @vport: pointer to vport data structure. 5089 * 5090 * This routine is to perform Clear Virtual Link (CVL) on a vport in 5091 * response to a CVL event. 5092 * 5093 * Return the pointer to the ndlp with the vport if successful, otherwise 5094 * return NULL. 5095 **/ 5096 static struct lpfc_nodelist * 5097 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 5098 { 5099 struct lpfc_nodelist *ndlp; 5100 struct Scsi_Host *shost; 5101 struct lpfc_hba *phba; 5102 5103 if (!vport) 5104 return NULL; 5105 phba = vport->phba; 5106 if (!phba) 5107 return NULL; 5108 ndlp = lpfc_findnode_did(vport, Fabric_DID); 5109 if (!ndlp) { 5110 /* Cannot find existing Fabric ndlp, so allocate a new one */ 5111 ndlp = lpfc_nlp_init(vport, Fabric_DID); 5112 if (!ndlp) 5113 return 0; 5114 /* Set the node type */ 5115 ndlp->nlp_type |= NLP_FABRIC; 5116 /* Put ndlp onto node list */ 5117 lpfc_enqueue_node(vport, ndlp); 5118 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 5119 /* re-setup ndlp without removing from node list */ 5120 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 5121 if (!ndlp) 5122 return 0; 5123 } 5124 if ((phba->pport->port_state < LPFC_FLOGI) && 5125 (phba->pport->port_state != LPFC_VPORT_FAILED)) 5126 return NULL; 5127 /* If virtual link is not yet instantiated ignore CVL */ 5128 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 5129 && (vport->port_state != LPFC_VPORT_FAILED)) 5130 return NULL; 5131 shost = lpfc_shost_from_vport(vport); 5132 if (!shost) 5133 return NULL; 5134 lpfc_linkdown_port(vport); 5135 lpfc_cleanup_pending_mbox(vport); 5136 spin_lock_irq(shost->host_lock); 5137 vport->fc_flag |= FC_VPORT_CVL_RCVD; 5138 spin_unlock_irq(shost->host_lock); 5139 5140 return ndlp; 5141 } 5142 5143 /** 5144 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 5145 * @vport: pointer to lpfc hba data structure. 5146 * 5147 * This routine is to perform Clear Virtual Link (CVL) on all vports in 5148 * response to a FCF dead event. 5149 **/ 5150 static void 5151 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 5152 { 5153 struct lpfc_vport **vports; 5154 int i; 5155 5156 vports = lpfc_create_vport_work_array(phba); 5157 if (vports) 5158 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 5159 lpfc_sli4_perform_vport_cvl(vports[i]); 5160 lpfc_destroy_vport_work_array(phba, vports); 5161 } 5162 5163 /** 5164 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 5165 * @phba: pointer to lpfc hba data structure. 5166 * @acqe_link: pointer to the async fcoe completion queue entry. 5167 * 5168 * This routine is to handle the SLI4 asynchronous fcoe event. 5169 **/ 5170 static void 5171 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 5172 struct lpfc_acqe_fip *acqe_fip) 5173 { 5174 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 5175 int rc; 5176 struct lpfc_vport *vport; 5177 struct lpfc_nodelist *ndlp; 5178 struct Scsi_Host *shost; 5179 int active_vlink_present; 5180 struct lpfc_vport **vports; 5181 int i; 5182 5183 phba->fc_eventTag = acqe_fip->event_tag; 5184 phba->fcoe_eventtag = acqe_fip->event_tag; 5185 switch (event_type) { 5186 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 5187 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 5188 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 5189 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5190 LOG_DISCOVERY, 5191 "2546 New FCF event, evt_tag:x%x, " 5192 "index:x%x\n", 5193 acqe_fip->event_tag, 5194 acqe_fip->index); 5195 else 5196 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 5197 LOG_DISCOVERY, 5198 "2788 FCF param modified event, " 5199 "evt_tag:x%x, index:x%x\n", 5200 acqe_fip->event_tag, 5201 acqe_fip->index); 5202 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5203 /* 5204 * During period of FCF discovery, read the FCF 5205 * table record indexed by the event to update 5206 * FCF roundrobin failover eligible FCF bmask. 5207 */ 5208 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5209 LOG_DISCOVERY, 5210 "2779 Read FCF (x%x) for updating " 5211 "roundrobin FCF failover bmask\n", 5212 acqe_fip->index); 5213 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 5214 } 5215 5216 /* If the FCF discovery is in progress, do nothing. */ 5217 spin_lock_irq(&phba->hbalock); 5218 if (phba->hba_flag & FCF_TS_INPROG) { 5219 spin_unlock_irq(&phba->hbalock); 5220 break; 5221 } 5222 /* If fast FCF failover rescan event is pending, do nothing */ 5223 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) { 5224 spin_unlock_irq(&phba->hbalock); 5225 break; 5226 } 5227 5228 /* If the FCF has been in discovered state, do nothing. */ 5229 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 5230 spin_unlock_irq(&phba->hbalock); 5231 break; 5232 } 5233 spin_unlock_irq(&phba->hbalock); 5234 5235 /* Otherwise, scan the entire FCF table and re-discover SAN */ 5236 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5237 "2770 Start FCF table scan per async FCF " 5238 "event, evt_tag:x%x, index:x%x\n", 5239 acqe_fip->event_tag, acqe_fip->index); 5240 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5241 LPFC_FCOE_FCF_GET_FIRST); 5242 if (rc) 5243 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5244 "2547 Issue FCF scan read FCF mailbox " 5245 "command failed (x%x)\n", rc); 5246 break; 5247 5248 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5249 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5250 "2548 FCF Table full count 0x%x tag 0x%x\n", 5251 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5252 acqe_fip->event_tag); 5253 break; 5254 5255 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5256 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5257 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5258 "2549 FCF (x%x) disconnected from network, " 5259 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5260 /* 5261 * If we are in the middle of FCF failover process, clear 5262 * the corresponding FCF bit in the roundrobin bitmap. 5263 */ 5264 spin_lock_irq(&phba->hbalock); 5265 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5266 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5267 spin_unlock_irq(&phba->hbalock); 5268 /* Update FLOGI FCF failover eligible FCF bmask */ 5269 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5270 break; 5271 } 5272 spin_unlock_irq(&phba->hbalock); 5273 5274 /* If the event is not for currently used fcf do nothing */ 5275 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5276 break; 5277 5278 /* 5279 * Otherwise, request the port to rediscover the entire FCF 5280 * table for a fast recovery from case that the current FCF 5281 * is no longer valid as we are not in the middle of FCF 5282 * failover process already. 5283 */ 5284 spin_lock_irq(&phba->hbalock); 5285 /* Mark the fast failover process in progress */ 5286 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5287 spin_unlock_irq(&phba->hbalock); 5288 5289 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5290 "2771 Start FCF fast failover process due to " 5291 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5292 "\n", acqe_fip->event_tag, acqe_fip->index); 5293 rc = lpfc_sli4_redisc_fcf_table(phba); 5294 if (rc) { 5295 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5296 LOG_DISCOVERY, 5297 "2772 Issue FCF rediscover mailbox " 5298 "command failed, fail through to FCF " 5299 "dead event\n"); 5300 spin_lock_irq(&phba->hbalock); 5301 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5302 spin_unlock_irq(&phba->hbalock); 5303 /* 5304 * Last resort will fail over by treating this 5305 * as a link down to FCF registration. 5306 */ 5307 lpfc_sli4_fcf_dead_failthrough(phba); 5308 } else { 5309 /* Reset FCF roundrobin bmask for new discovery */ 5310 lpfc_sli4_clear_fcf_rr_bmask(phba); 5311 /* 5312 * Handling fast FCF failover to a DEAD FCF event is 5313 * considered equalivant to receiving CVL to all vports. 5314 */ 5315 lpfc_sli4_perform_all_vport_cvl(phba); 5316 } 5317 break; 5318 case LPFC_FIP_EVENT_TYPE_CVL: 5319 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5320 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5321 "2718 Clear Virtual Link Received for VPI 0x%x" 5322 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5323 5324 vport = lpfc_find_vport_by_vpid(phba, 5325 acqe_fip->index); 5326 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5327 if (!ndlp) 5328 break; 5329 active_vlink_present = 0; 5330 5331 vports = lpfc_create_vport_work_array(phba); 5332 if (vports) { 5333 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5334 i++) { 5335 if ((!(vports[i]->fc_flag & 5336 FC_VPORT_CVL_RCVD)) && 5337 (vports[i]->port_state > LPFC_FDISC)) { 5338 active_vlink_present = 1; 5339 break; 5340 } 5341 } 5342 lpfc_destroy_vport_work_array(phba, vports); 5343 } 5344 5345 /* 5346 * Don't re-instantiate if vport is marked for deletion. 5347 * If we are here first then vport_delete is going to wait 5348 * for discovery to complete. 5349 */ 5350 if (!(vport->load_flag & FC_UNLOADING) && 5351 active_vlink_present) { 5352 /* 5353 * If there are other active VLinks present, 5354 * re-instantiate the Vlink using FDISC. 5355 */ 5356 mod_timer(&ndlp->nlp_delayfunc, 5357 jiffies + msecs_to_jiffies(1000)); 5358 shost = lpfc_shost_from_vport(vport); 5359 spin_lock_irq(shost->host_lock); 5360 ndlp->nlp_flag |= NLP_DELAY_TMO; 5361 spin_unlock_irq(shost->host_lock); 5362 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5363 vport->port_state = LPFC_FDISC; 5364 } else { 5365 /* 5366 * Otherwise, we request port to rediscover 5367 * the entire FCF table for a fast recovery 5368 * from possible case that the current FCF 5369 * is no longer valid if we are not already 5370 * in the FCF failover process. 5371 */ 5372 spin_lock_irq(&phba->hbalock); 5373 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5374 spin_unlock_irq(&phba->hbalock); 5375 break; 5376 } 5377 /* Mark the fast failover process in progress */ 5378 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5379 spin_unlock_irq(&phba->hbalock); 5380 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5381 LOG_DISCOVERY, 5382 "2773 Start FCF failover per CVL, " 5383 "evt_tag:x%x\n", acqe_fip->event_tag); 5384 rc = lpfc_sli4_redisc_fcf_table(phba); 5385 if (rc) { 5386 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5387 LOG_DISCOVERY, 5388 "2774 Issue FCF rediscover " 5389 "mailbox command failed, " 5390 "through to CVL event\n"); 5391 spin_lock_irq(&phba->hbalock); 5392 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5393 spin_unlock_irq(&phba->hbalock); 5394 /* 5395 * Last resort will be re-try on the 5396 * the current registered FCF entry. 5397 */ 5398 lpfc_retry_pport_discovery(phba); 5399 } else 5400 /* 5401 * Reset FCF roundrobin bmask for new 5402 * discovery. 5403 */ 5404 lpfc_sli4_clear_fcf_rr_bmask(phba); 5405 } 5406 break; 5407 default: 5408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5409 "0288 Unknown FCoE event type 0x%x event tag " 5410 "0x%x\n", event_type, acqe_fip->event_tag); 5411 break; 5412 } 5413 } 5414 5415 /** 5416 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5417 * @phba: pointer to lpfc hba data structure. 5418 * @acqe_link: pointer to the async dcbx completion queue entry. 5419 * 5420 * This routine is to handle the SLI4 asynchronous dcbx event. 5421 **/ 5422 static void 5423 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5424 struct lpfc_acqe_dcbx *acqe_dcbx) 5425 { 5426 phba->fc_eventTag = acqe_dcbx->event_tag; 5427 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5428 "0290 The SLI4 DCBX asynchronous event is not " 5429 "handled yet\n"); 5430 } 5431 5432 /** 5433 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5434 * @phba: pointer to lpfc hba data structure. 5435 * @acqe_link: pointer to the async grp5 completion queue entry. 5436 * 5437 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5438 * is an asynchronous notified of a logical link speed change. The Port 5439 * reports the logical link speed in units of 10Mbps. 5440 **/ 5441 static void 5442 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5443 struct lpfc_acqe_grp5 *acqe_grp5) 5444 { 5445 uint16_t prev_ll_spd; 5446 5447 phba->fc_eventTag = acqe_grp5->event_tag; 5448 phba->fcoe_eventtag = acqe_grp5->event_tag; 5449 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5450 phba->sli4_hba.link_state.logical_speed = 5451 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5452 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5453 "2789 GRP5 Async Event: Updating logical link speed " 5454 "from %dMbps to %dMbps\n", prev_ll_spd, 5455 phba->sli4_hba.link_state.logical_speed); 5456 } 5457 5458 /** 5459 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5460 * @phba: pointer to lpfc hba data structure. 5461 * 5462 * This routine is invoked by the worker thread to process all the pending 5463 * SLI4 asynchronous events. 5464 **/ 5465 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5466 { 5467 struct lpfc_cq_event *cq_event; 5468 5469 /* First, declare the async event has been handled */ 5470 spin_lock_irq(&phba->hbalock); 5471 phba->hba_flag &= ~ASYNC_EVENT; 5472 spin_unlock_irq(&phba->hbalock); 5473 /* Now, handle all the async events */ 5474 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5475 /* Get the first event from the head of the event queue */ 5476 spin_lock_irq(&phba->hbalock); 5477 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5478 cq_event, struct lpfc_cq_event, list); 5479 spin_unlock_irq(&phba->hbalock); 5480 /* Process the asynchronous event */ 5481 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5482 case LPFC_TRAILER_CODE_LINK: 5483 lpfc_sli4_async_link_evt(phba, 5484 &cq_event->cqe.acqe_link); 5485 break; 5486 case LPFC_TRAILER_CODE_FCOE: 5487 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5488 break; 5489 case LPFC_TRAILER_CODE_DCBX: 5490 lpfc_sli4_async_dcbx_evt(phba, 5491 &cq_event->cqe.acqe_dcbx); 5492 break; 5493 case LPFC_TRAILER_CODE_GRP5: 5494 lpfc_sli4_async_grp5_evt(phba, 5495 &cq_event->cqe.acqe_grp5); 5496 break; 5497 case LPFC_TRAILER_CODE_FC: 5498 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5499 break; 5500 case LPFC_TRAILER_CODE_SLI: 5501 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5502 break; 5503 default: 5504 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5505 "1804 Invalid asynchrous event code: " 5506 "x%x\n", bf_get(lpfc_trailer_code, 5507 &cq_event->cqe.mcqe_cmpl)); 5508 break; 5509 } 5510 /* Free the completion event processed to the free pool */ 5511 lpfc_sli4_cq_event_release(phba, cq_event); 5512 } 5513 } 5514 5515 /** 5516 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5517 * @phba: pointer to lpfc hba data structure. 5518 * 5519 * This routine is invoked by the worker thread to process FCF table 5520 * rediscovery pending completion event. 5521 **/ 5522 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5523 { 5524 int rc; 5525 5526 spin_lock_irq(&phba->hbalock); 5527 /* Clear FCF rediscovery timeout event */ 5528 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5529 /* Clear driver fast failover FCF record flag */ 5530 phba->fcf.failover_rec.flag = 0; 5531 /* Set state for FCF fast failover */ 5532 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5533 spin_unlock_irq(&phba->hbalock); 5534 5535 /* Scan FCF table from the first entry to re-discover SAN */ 5536 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5537 "2777 Start post-quiescent FCF table scan\n"); 5538 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5539 if (rc) 5540 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5541 "2747 Issue FCF scan read FCF mailbox " 5542 "command failed 0x%x\n", rc); 5543 } 5544 5545 /** 5546 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5547 * @phba: pointer to lpfc hba data structure. 5548 * @dev_grp: The HBA PCI-Device group number. 5549 * 5550 * This routine is invoked to set up the per HBA PCI-Device group function 5551 * API jump table entries. 5552 * 5553 * Return: 0 if success, otherwise -ENODEV 5554 **/ 5555 int 5556 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5557 { 5558 int rc; 5559 5560 /* Set up lpfc PCI-device group */ 5561 phba->pci_dev_grp = dev_grp; 5562 5563 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5564 if (dev_grp == LPFC_PCI_DEV_OC) 5565 phba->sli_rev = LPFC_SLI_REV4; 5566 5567 /* Set up device INIT API function jump table */ 5568 rc = lpfc_init_api_table_setup(phba, dev_grp); 5569 if (rc) 5570 return -ENODEV; 5571 /* Set up SCSI API function jump table */ 5572 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5573 if (rc) 5574 return -ENODEV; 5575 /* Set up SLI API function jump table */ 5576 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5577 if (rc) 5578 return -ENODEV; 5579 /* Set up MBOX API function jump table */ 5580 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5581 if (rc) 5582 return -ENODEV; 5583 5584 return 0; 5585 } 5586 5587 /** 5588 * lpfc_log_intr_mode - Log the active interrupt mode 5589 * @phba: pointer to lpfc hba data structure. 5590 * @intr_mode: active interrupt mode adopted. 5591 * 5592 * This routine it invoked to log the currently used active interrupt mode 5593 * to the device. 5594 **/ 5595 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5596 { 5597 switch (intr_mode) { 5598 case 0: 5599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5600 "0470 Enable INTx interrupt mode.\n"); 5601 break; 5602 case 1: 5603 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5604 "0481 Enabled MSI interrupt mode.\n"); 5605 break; 5606 case 2: 5607 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5608 "0480 Enabled MSI-X interrupt mode.\n"); 5609 break; 5610 default: 5611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5612 "0482 Illegal interrupt mode.\n"); 5613 break; 5614 } 5615 return; 5616 } 5617 5618 /** 5619 * lpfc_enable_pci_dev - Enable a generic PCI device. 5620 * @phba: pointer to lpfc hba data structure. 5621 * 5622 * This routine is invoked to enable the PCI device that is common to all 5623 * PCI devices. 5624 * 5625 * Return codes 5626 * 0 - successful 5627 * other values - error 5628 **/ 5629 static int 5630 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5631 { 5632 struct pci_dev *pdev; 5633 5634 /* Obtain PCI device reference */ 5635 if (!phba->pcidev) 5636 goto out_error; 5637 else 5638 pdev = phba->pcidev; 5639 /* Enable PCI device */ 5640 if (pci_enable_device_mem(pdev)) 5641 goto out_error; 5642 /* Request PCI resource for the device */ 5643 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5644 goto out_disable_device; 5645 /* Set up device as PCI master and save state for EEH */ 5646 pci_set_master(pdev); 5647 pci_try_set_mwi(pdev); 5648 pci_save_state(pdev); 5649 5650 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5651 if (pci_is_pcie(pdev)) 5652 pdev->needs_freset = 1; 5653 5654 return 0; 5655 5656 out_disable_device: 5657 pci_disable_device(pdev); 5658 out_error: 5659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5660 "1401 Failed to enable pci device\n"); 5661 return -ENODEV; 5662 } 5663 5664 /** 5665 * lpfc_disable_pci_dev - Disable a generic PCI device. 5666 * @phba: pointer to lpfc hba data structure. 5667 * 5668 * This routine is invoked to disable the PCI device that is common to all 5669 * PCI devices. 5670 **/ 5671 static void 5672 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5673 { 5674 struct pci_dev *pdev; 5675 5676 /* Obtain PCI device reference */ 5677 if (!phba->pcidev) 5678 return; 5679 else 5680 pdev = phba->pcidev; 5681 /* Release PCI resource and disable PCI device */ 5682 pci_release_mem_regions(pdev); 5683 pci_disable_device(pdev); 5684 5685 return; 5686 } 5687 5688 /** 5689 * lpfc_reset_hba - Reset a hba 5690 * @phba: pointer to lpfc hba data structure. 5691 * 5692 * This routine is invoked to reset a hba device. It brings the HBA 5693 * offline, performs a board restart, and then brings the board back 5694 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5695 * on outstanding mailbox commands. 5696 **/ 5697 void 5698 lpfc_reset_hba(struct lpfc_hba *phba) 5699 { 5700 /* If resets are disabled then set error state and return. */ 5701 if (!phba->cfg_enable_hba_reset) { 5702 phba->link_state = LPFC_HBA_ERROR; 5703 return; 5704 } 5705 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5706 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5707 else 5708 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5709 lpfc_offline(phba); 5710 lpfc_sli_brdrestart(phba); 5711 lpfc_online(phba); 5712 lpfc_unblock_mgmt_io(phba); 5713 } 5714 5715 /** 5716 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5717 * @phba: pointer to lpfc hba data structure. 5718 * 5719 * This function enables the PCI SR-IOV virtual functions to a physical 5720 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5721 * enable the number of virtual functions to the physical function. As 5722 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5723 * API call does not considered as an error condition for most of the device. 5724 **/ 5725 uint16_t 5726 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5727 { 5728 struct pci_dev *pdev = phba->pcidev; 5729 uint16_t nr_virtfn; 5730 int pos; 5731 5732 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5733 if (pos == 0) 5734 return 0; 5735 5736 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5737 return nr_virtfn; 5738 } 5739 5740 /** 5741 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5742 * @phba: pointer to lpfc hba data structure. 5743 * @nr_vfn: number of virtual functions to be enabled. 5744 * 5745 * This function enables the PCI SR-IOV virtual functions to a physical 5746 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5747 * enable the number of virtual functions to the physical function. As 5748 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5749 * API call does not considered as an error condition for most of the device. 5750 **/ 5751 int 5752 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5753 { 5754 struct pci_dev *pdev = phba->pcidev; 5755 uint16_t max_nr_vfn; 5756 int rc; 5757 5758 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5759 if (nr_vfn > max_nr_vfn) { 5760 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5761 "3057 Requested vfs (%d) greater than " 5762 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5763 return -EINVAL; 5764 } 5765 5766 rc = pci_enable_sriov(pdev, nr_vfn); 5767 if (rc) { 5768 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5769 "2806 Failed to enable sriov on this device " 5770 "with vfn number nr_vf:%d, rc:%d\n", 5771 nr_vfn, rc); 5772 } else 5773 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5774 "2807 Successful enable sriov on this device " 5775 "with vfn number nr_vf:%d\n", nr_vfn); 5776 return rc; 5777 } 5778 5779 /** 5780 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5781 * @phba: pointer to lpfc hba data structure. 5782 * 5783 * This routine is invoked to set up the driver internal resources before the 5784 * device specific resource setup to support the HBA device it attached to. 5785 * 5786 * Return codes 5787 * 0 - successful 5788 * other values - error 5789 **/ 5790 static int 5791 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5792 { 5793 struct lpfc_sli *psli = &phba->sli; 5794 5795 /* 5796 * Driver resources common to all SLI revisions 5797 */ 5798 atomic_set(&phba->fast_event_count, 0); 5799 spin_lock_init(&phba->hbalock); 5800 5801 /* Initialize ndlp management spinlock */ 5802 spin_lock_init(&phba->ndlp_lock); 5803 5804 /* Initialize port_list spinlock */ 5805 spin_lock_init(&phba->port_list_lock); 5806 INIT_LIST_HEAD(&phba->port_list); 5807 5808 INIT_LIST_HEAD(&phba->work_list); 5809 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5810 5811 /* Initialize the wait queue head for the kernel thread */ 5812 init_waitqueue_head(&phba->work_waitq); 5813 5814 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5815 "1403 Protocols supported %s %s %s\n", 5816 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5817 "SCSI" : " "), 5818 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5819 "NVME" : " "), 5820 (phba->nvmet_support ? "NVMET" : " ")); 5821 5822 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5823 /* Initialize the scsi buffer list used by driver for scsi IO */ 5824 spin_lock_init(&phba->scsi_buf_list_get_lock); 5825 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5826 spin_lock_init(&phba->scsi_buf_list_put_lock); 5827 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5828 } 5829 5830 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5831 (phba->nvmet_support == 0)) { 5832 /* Initialize the NVME buffer list used by driver for NVME IO */ 5833 spin_lock_init(&phba->nvme_buf_list_get_lock); 5834 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5835 phba->get_nvme_bufs = 0; 5836 spin_lock_init(&phba->nvme_buf_list_put_lock); 5837 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5838 phba->put_nvme_bufs = 0; 5839 } 5840 5841 /* Initialize the fabric iocb list */ 5842 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5843 5844 /* Initialize list to save ELS buffers */ 5845 INIT_LIST_HEAD(&phba->elsbuf); 5846 5847 /* Initialize FCF connection rec list */ 5848 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5849 5850 /* Initialize OAS configuration list */ 5851 spin_lock_init(&phba->devicelock); 5852 INIT_LIST_HEAD(&phba->luns); 5853 5854 /* MBOX heartbeat timer */ 5855 timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); 5856 /* Fabric block timer */ 5857 timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); 5858 /* EA polling mode timer */ 5859 timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); 5860 /* Heartbeat timer */ 5861 timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); 5862 5863 return 0; 5864 } 5865 5866 /** 5867 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5868 * @phba: pointer to lpfc hba data structure. 5869 * 5870 * This routine is invoked to set up the driver internal resources specific to 5871 * support the SLI-3 HBA device it attached to. 5872 * 5873 * Return codes 5874 * 0 - successful 5875 * other values - error 5876 **/ 5877 static int 5878 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5879 { 5880 int rc; 5881 5882 /* 5883 * Initialize timers used by driver 5884 */ 5885 5886 /* FCP polling mode timer */ 5887 timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); 5888 5889 /* Host attention work mask setup */ 5890 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5891 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5892 5893 /* Get all the module params for configuring this host */ 5894 lpfc_get_cfgparam(phba); 5895 /* Set up phase-1 common device driver resources */ 5896 5897 rc = lpfc_setup_driver_resource_phase1(phba); 5898 if (rc) 5899 return -ENODEV; 5900 5901 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5902 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5903 /* check for menlo minimum sg count */ 5904 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5905 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5906 } 5907 5908 if (!phba->sli.sli3_ring) 5909 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING, 5910 sizeof(struct lpfc_sli_ring), 5911 GFP_KERNEL); 5912 if (!phba->sli.sli3_ring) 5913 return -ENOMEM; 5914 5915 /* 5916 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5917 * used to create the sg_dma_buf_pool must be dynamically calculated. 5918 */ 5919 5920 /* Initialize the host templates the configured values. */ 5921 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5922 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5923 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5924 5925 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5926 if (phba->cfg_enable_bg) { 5927 /* 5928 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5929 * the FCP rsp, and a BDE for each. Sice we have no control 5930 * over how many protection data segments the SCSI Layer 5931 * will hand us (ie: there could be one for every block 5932 * in the IO), we just allocate enough BDEs to accomidate 5933 * our max amount and we need to limit lpfc_sg_seg_cnt to 5934 * minimize the risk of running out. 5935 */ 5936 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5937 sizeof(struct fcp_rsp) + 5938 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5939 5940 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5941 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5942 5943 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5944 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5945 } else { 5946 /* 5947 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5948 * the FCP rsp, a BDE for each, and a BDE for up to 5949 * cfg_sg_seg_cnt data segments. 5950 */ 5951 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5952 sizeof(struct fcp_rsp) + 5953 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5954 5955 /* Total BDEs in BPL for scsi_sg_list */ 5956 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5957 } 5958 5959 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5960 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5961 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5962 phba->cfg_total_seg_cnt); 5963 5964 phba->max_vpi = LPFC_MAX_VPI; 5965 /* This will be set to correct value after config_port mbox */ 5966 phba->max_vports = 0; 5967 5968 /* 5969 * Initialize the SLI Layer to run with lpfc HBAs. 5970 */ 5971 lpfc_sli_setup(phba); 5972 lpfc_sli_queue_init(phba); 5973 5974 /* Allocate device driver memory */ 5975 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5976 return -ENOMEM; 5977 5978 /* 5979 * Enable sr-iov virtual functions if supported and configured 5980 * through the module parameter. 5981 */ 5982 if (phba->cfg_sriov_nr_virtfn > 0) { 5983 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5984 phba->cfg_sriov_nr_virtfn); 5985 if (rc) { 5986 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5987 "2808 Requested number of SR-IOV " 5988 "virtual functions (%d) is not " 5989 "supported\n", 5990 phba->cfg_sriov_nr_virtfn); 5991 phba->cfg_sriov_nr_virtfn = 0; 5992 } 5993 } 5994 5995 return 0; 5996 } 5997 5998 /** 5999 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 6000 * @phba: pointer to lpfc hba data structure. 6001 * 6002 * This routine is invoked to unset the driver internal resources set up 6003 * specific for supporting the SLI-3 HBA device it attached to. 6004 **/ 6005 static void 6006 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 6007 { 6008 /* Free device driver memory allocated */ 6009 lpfc_mem_free_all(phba); 6010 6011 return; 6012 } 6013 6014 /** 6015 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 6016 * @phba: pointer to lpfc hba data structure. 6017 * 6018 * This routine is invoked to set up the driver internal resources specific to 6019 * support the SLI-4 HBA device it attached to. 6020 * 6021 * Return codes 6022 * 0 - successful 6023 * other values - error 6024 **/ 6025 static int 6026 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 6027 { 6028 LPFC_MBOXQ_t *mboxq; 6029 MAILBOX_t *mb; 6030 int rc, i, max_buf_size; 6031 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 6032 struct lpfc_mqe *mqe; 6033 int longs; 6034 int fof_vectors = 0; 6035 int extra; 6036 uint64_t wwn; 6037 u32 if_type; 6038 u32 if_fam; 6039 6040 phba->sli4_hba.num_online_cpu = num_online_cpus(); 6041 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 6042 phba->sli4_hba.curr_disp_cpu = 0; 6043 6044 /* Get all the module params for configuring this host */ 6045 lpfc_get_cfgparam(phba); 6046 6047 /* Set up phase-1 common device driver resources */ 6048 rc = lpfc_setup_driver_resource_phase1(phba); 6049 if (rc) 6050 return -ENODEV; 6051 6052 /* Before proceed, wait for POST done and device ready */ 6053 rc = lpfc_sli4_post_status_check(phba); 6054 if (rc) 6055 return -ENODEV; 6056 6057 /* 6058 * Initialize timers used by driver 6059 */ 6060 6061 timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); 6062 6063 /* FCF rediscover timer */ 6064 timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); 6065 6066 /* 6067 * Control structure for handling external multi-buffer mailbox 6068 * command pass-through. 6069 */ 6070 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 6071 sizeof(struct lpfc_mbox_ext_buf_ctx)); 6072 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 6073 6074 phba->max_vpi = LPFC_MAX_VPI; 6075 6076 /* This will be set to correct value after the read_config mbox */ 6077 phba->max_vports = 0; 6078 6079 /* Program the default value of vlan_id and fc_map */ 6080 phba->valid_vlan = 0; 6081 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 6082 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 6083 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 6084 6085 /* 6086 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 6087 * we will associate a new ring, for each EQ/CQ/WQ tuple. 6088 * The WQ create will allocate the ring. 6089 */ 6090 6091 /* 6092 * 1 for cmd, 1 for rsp, NVME adds an extra one 6093 * for boundary conditions in its max_sgl_segment template. 6094 */ 6095 extra = 2; 6096 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 6097 extra++; 6098 6099 /* 6100 * It doesn't matter what family our adapter is in, we are 6101 * limited to 2 Pages, 512 SGEs, for our SGL. 6102 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 6103 */ 6104 max_buf_size = (2 * SLI4_PAGE_SIZE); 6105 6106 /* 6107 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 6108 * used to create the sg_dma_buf_pool must be calculated. 6109 */ 6110 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) { 6111 /* 6112 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 6113 * the FCP rsp, and a SGE. Sice we have no control 6114 * over how many protection segments the SCSI Layer 6115 * will hand us (ie: there could be one for every block 6116 * in the IO), just allocate enough SGEs to accomidate 6117 * our max amount and we need to limit lpfc_sg_seg_cnt 6118 * to minimize the risk of running out. 6119 */ 6120 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6121 sizeof(struct fcp_rsp) + max_buf_size; 6122 6123 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 6124 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 6125 6126 /* 6127 * If supporting DIF, reduce the seg count for scsi to 6128 * allow room for the DIF sges. 6129 */ 6130 if (phba->cfg_enable_bg && 6131 phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF) 6132 phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF; 6133 else 6134 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; 6135 6136 } else { 6137 /* 6138 * The scsi_buf for a regular I/O holds the FCP cmnd, 6139 * the FCP rsp, a SGE for each, and a SGE for up to 6140 * cfg_sg_seg_cnt data segments. 6141 */ 6142 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 6143 sizeof(struct fcp_rsp) + 6144 ((phba->cfg_sg_seg_cnt + extra) * 6145 sizeof(struct sli4_sge)); 6146 6147 /* Total SGEs for scsi_sg_list */ 6148 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra; 6149 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt; 6150 6151 /* 6152 * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only 6153 * need to post 1 page for the SGL. 6154 */ 6155 } 6156 6157 /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */ 6158 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 6159 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) { 6160 lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT, 6161 "6300 Reducing NVME sg segment " 6162 "cnt to %d\n", 6163 LPFC_MAX_NVME_SEG_CNT); 6164 phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT; 6165 } else 6166 phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt; 6167 } 6168 6169 /* Initialize the host templates with the updated values. */ 6170 lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt; 6171 lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt; 6172 lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt; 6173 6174 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 6175 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 6176 else 6177 phba->cfg_sg_dma_buf_size = 6178 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 6179 6180 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 6181 "9087 sg_seg_cnt:%d dmabuf_size:%d " 6182 "total:%d scsi:%d nvme:%d\n", 6183 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 6184 phba->cfg_total_seg_cnt, phba->cfg_scsi_seg_cnt, 6185 phba->cfg_nvme_seg_cnt); 6186 6187 /* Initialize buffer queue management fields */ 6188 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 6189 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 6190 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 6191 6192 /* 6193 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 6194 */ 6195 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 6196 /* Initialize the Abort scsi buffer list used by driver */ 6197 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 6198 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 6199 } 6200 6201 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 6202 /* Initialize the Abort nvme buffer list used by driver */ 6203 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 6204 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 6205 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6206 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 6207 } 6208 6209 /* This abort list used by worker thread */ 6210 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 6211 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 6212 6213 /* 6214 * Initialize driver internal slow-path work queues 6215 */ 6216 6217 /* Driver internel slow-path CQ Event pool */ 6218 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 6219 /* Response IOCB work queue list */ 6220 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 6221 /* Asynchronous event CQ Event work queue list */ 6222 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 6223 /* Fast-path XRI aborted CQ Event work queue list */ 6224 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 6225 /* Slow-path XRI aborted CQ Event work queue list */ 6226 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 6227 /* Receive queue CQ Event work queue list */ 6228 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 6229 6230 /* Initialize extent block lists. */ 6231 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 6232 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 6233 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 6234 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 6235 6236 /* Initialize mboxq lists. If the early init routines fail 6237 * these lists need to be correctly initialized. 6238 */ 6239 INIT_LIST_HEAD(&phba->sli.mboxq); 6240 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 6241 6242 /* initialize optic_state to 0xFF */ 6243 phba->sli4_hba.lnk_info.optic_state = 0xff; 6244 6245 /* Allocate device driver memory */ 6246 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 6247 if (rc) 6248 return -ENOMEM; 6249 6250 /* IF Type 2 ports get initialized now. */ 6251 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= 6252 LPFC_SLI_INTF_IF_TYPE_2) { 6253 rc = lpfc_pci_function_reset(phba); 6254 if (unlikely(rc)) { 6255 rc = -ENODEV; 6256 goto out_free_mem; 6257 } 6258 phba->temp_sensor_support = 1; 6259 } 6260 6261 /* Create the bootstrap mailbox command */ 6262 rc = lpfc_create_bootstrap_mbox(phba); 6263 if (unlikely(rc)) 6264 goto out_free_mem; 6265 6266 /* Set up the host's endian order with the device. */ 6267 rc = lpfc_setup_endian_order(phba); 6268 if (unlikely(rc)) 6269 goto out_free_bsmbx; 6270 6271 /* Set up the hba's configuration parameters. */ 6272 rc = lpfc_sli4_read_config(phba); 6273 if (unlikely(rc)) 6274 goto out_free_bsmbx; 6275 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6276 if (unlikely(rc)) 6277 goto out_free_bsmbx; 6278 6279 /* IF Type 0 ports get initialized now. */ 6280 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6281 LPFC_SLI_INTF_IF_TYPE_0) { 6282 rc = lpfc_pci_function_reset(phba); 6283 if (unlikely(rc)) 6284 goto out_free_bsmbx; 6285 } 6286 6287 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6288 GFP_KERNEL); 6289 if (!mboxq) { 6290 rc = -ENOMEM; 6291 goto out_free_bsmbx; 6292 } 6293 6294 /* Check for NVMET being configured */ 6295 phba->nvmet_support = 0; 6296 if (lpfc_enable_nvmet_cnt) { 6297 6298 /* First get WWN of HBA instance */ 6299 lpfc_read_nv(phba, mboxq); 6300 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6301 if (rc != MBX_SUCCESS) { 6302 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6303 "6016 Mailbox failed , mbxCmd x%x " 6304 "READ_NV, mbxStatus x%x\n", 6305 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6306 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6307 mempool_free(mboxq, phba->mbox_mem_pool); 6308 rc = -EIO; 6309 goto out_free_bsmbx; 6310 } 6311 mb = &mboxq->u.mb; 6312 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6313 sizeof(uint64_t)); 6314 wwn = cpu_to_be64(wwn); 6315 phba->sli4_hba.wwnn.u.name = wwn; 6316 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6317 sizeof(uint64_t)); 6318 /* wwn is WWPN of HBA instance */ 6319 wwn = cpu_to_be64(wwn); 6320 phba->sli4_hba.wwpn.u.name = wwn; 6321 6322 /* Check to see if it matches any module parameter */ 6323 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6324 if (wwn == lpfc_enable_nvmet[i]) { 6325 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6326 if (lpfc_nvmet_mem_alloc(phba)) 6327 break; 6328 6329 phba->nvmet_support = 1; /* a match */ 6330 6331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6332 "6017 NVME Target %016llx\n", 6333 wwn); 6334 #else 6335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6336 "6021 Can't enable NVME Target." 6337 " NVME_TARGET_FC infrastructure" 6338 " is not in kernel\n"); 6339 #endif 6340 break; 6341 } 6342 } 6343 } 6344 6345 lpfc_nvme_mod_param_dep(phba); 6346 6347 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6348 lpfc_supported_pages(mboxq); 6349 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6350 if (!rc) { 6351 mqe = &mboxq->u.mqe; 6352 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6353 LPFC_MAX_SUPPORTED_PAGES); 6354 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6355 switch (pn_page[i]) { 6356 case LPFC_SLI4_PARAMETERS: 6357 phba->sli4_hba.pc_sli4_params.supported = 1; 6358 break; 6359 default: 6360 break; 6361 } 6362 } 6363 /* Read the port's SLI4 Parameters capabilities if supported. */ 6364 if (phba->sli4_hba.pc_sli4_params.supported) 6365 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6366 if (rc) { 6367 mempool_free(mboxq, phba->mbox_mem_pool); 6368 rc = -EIO; 6369 goto out_free_bsmbx; 6370 } 6371 } 6372 6373 /* 6374 * Get sli4 parameters that override parameters from Port capabilities. 6375 * If this call fails, it isn't critical unless the SLI4 parameters come 6376 * back in conflict. 6377 */ 6378 rc = lpfc_get_sli4_parameters(phba, mboxq); 6379 if (rc) { 6380 if_type = bf_get(lpfc_sli_intf_if_type, 6381 &phba->sli4_hba.sli_intf); 6382 if_fam = bf_get(lpfc_sli_intf_sli_family, 6383 &phba->sli4_hba.sli_intf); 6384 if (phba->sli4_hba.extents_in_use && 6385 phba->sli4_hba.rpi_hdrs_in_use) { 6386 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6387 "2999 Unsupported SLI4 Parameters " 6388 "Extents and RPI headers enabled.\n"); 6389 if (if_type == LPFC_SLI_INTF_IF_TYPE_0 && 6390 if_fam == LPFC_SLI_INTF_FAMILY_BE2) { 6391 mempool_free(mboxq, phba->mbox_mem_pool); 6392 rc = -EIO; 6393 goto out_free_bsmbx; 6394 } 6395 } 6396 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 && 6397 if_fam == LPFC_SLI_INTF_FAMILY_BE2)) { 6398 mempool_free(mboxq, phba->mbox_mem_pool); 6399 rc = -EIO; 6400 goto out_free_bsmbx; 6401 } 6402 } 6403 6404 mempool_free(mboxq, phba->mbox_mem_pool); 6405 6406 /* Verify OAS is supported */ 6407 lpfc_sli4_oas_verify(phba); 6408 if (phba->cfg_fof) 6409 fof_vectors = 1; 6410 6411 /* Verify RAS support on adapter */ 6412 lpfc_sli4_ras_init(phba); 6413 6414 /* Verify all the SLI4 queues */ 6415 rc = lpfc_sli4_queue_verify(phba); 6416 if (rc) 6417 goto out_free_bsmbx; 6418 6419 /* Create driver internal CQE event pool */ 6420 rc = lpfc_sli4_cq_event_pool_create(phba); 6421 if (rc) 6422 goto out_free_bsmbx; 6423 6424 /* Initialize sgl lists per host */ 6425 lpfc_init_sgl_list(phba); 6426 6427 /* Allocate and initialize active sgl array */ 6428 rc = lpfc_init_active_sgl_array(phba); 6429 if (rc) { 6430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6431 "1430 Failed to initialize sgl list.\n"); 6432 goto out_destroy_cq_event_pool; 6433 } 6434 rc = lpfc_sli4_init_rpi_hdrs(phba); 6435 if (rc) { 6436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6437 "1432 Failed to initialize rpi headers.\n"); 6438 goto out_free_active_sgl; 6439 } 6440 6441 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6442 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6443 phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long), 6444 GFP_KERNEL); 6445 if (!phba->fcf.fcf_rr_bmask) { 6446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6447 "2759 Failed allocate memory for FCF round " 6448 "robin failover bmask\n"); 6449 rc = -ENOMEM; 6450 goto out_remove_rpi_hdrs; 6451 } 6452 6453 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6454 sizeof(struct lpfc_hba_eq_hdl), 6455 GFP_KERNEL); 6456 if (!phba->sli4_hba.hba_eq_hdl) { 6457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6458 "2572 Failed allocate memory for " 6459 "fast-path per-EQ handle array\n"); 6460 rc = -ENOMEM; 6461 goto out_free_fcf_rr_bmask; 6462 } 6463 6464 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6465 sizeof(struct lpfc_vector_map_info), 6466 GFP_KERNEL); 6467 if (!phba->sli4_hba.cpu_map) { 6468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6469 "3327 Failed allocate memory for msi-x " 6470 "interrupt vector mapping\n"); 6471 rc = -ENOMEM; 6472 goto out_free_hba_eq_hdl; 6473 } 6474 if (lpfc_used_cpu == NULL) { 6475 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6476 GFP_KERNEL); 6477 if (!lpfc_used_cpu) { 6478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6479 "3335 Failed allocate memory for msi-x " 6480 "interrupt vector mapping\n"); 6481 kfree(phba->sli4_hba.cpu_map); 6482 rc = -ENOMEM; 6483 goto out_free_hba_eq_hdl; 6484 } 6485 for (i = 0; i < lpfc_present_cpu; i++) 6486 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6487 } 6488 6489 /* 6490 * Enable sr-iov virtual functions if supported and configured 6491 * through the module parameter. 6492 */ 6493 if (phba->cfg_sriov_nr_virtfn > 0) { 6494 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6495 phba->cfg_sriov_nr_virtfn); 6496 if (rc) { 6497 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6498 "3020 Requested number of SR-IOV " 6499 "virtual functions (%d) is not " 6500 "supported\n", 6501 phba->cfg_sriov_nr_virtfn); 6502 phba->cfg_sriov_nr_virtfn = 0; 6503 } 6504 } 6505 6506 return 0; 6507 6508 out_free_hba_eq_hdl: 6509 kfree(phba->sli4_hba.hba_eq_hdl); 6510 out_free_fcf_rr_bmask: 6511 kfree(phba->fcf.fcf_rr_bmask); 6512 out_remove_rpi_hdrs: 6513 lpfc_sli4_remove_rpi_hdrs(phba); 6514 out_free_active_sgl: 6515 lpfc_free_active_sgl(phba); 6516 out_destroy_cq_event_pool: 6517 lpfc_sli4_cq_event_pool_destroy(phba); 6518 out_free_bsmbx: 6519 lpfc_destroy_bootstrap_mbox(phba); 6520 out_free_mem: 6521 lpfc_mem_free(phba); 6522 return rc; 6523 } 6524 6525 /** 6526 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6527 * @phba: pointer to lpfc hba data structure. 6528 * 6529 * This routine is invoked to unset the driver internal resources set up 6530 * specific for supporting the SLI-4 HBA device it attached to. 6531 **/ 6532 static void 6533 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6534 { 6535 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6536 6537 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6538 kfree(phba->sli4_hba.cpu_map); 6539 phba->sli4_hba.num_present_cpu = 0; 6540 phba->sli4_hba.num_online_cpu = 0; 6541 phba->sli4_hba.curr_disp_cpu = 0; 6542 6543 /* Free memory allocated for fast-path work queue handles */ 6544 kfree(phba->sli4_hba.hba_eq_hdl); 6545 6546 /* Free the allocated rpi headers. */ 6547 lpfc_sli4_remove_rpi_hdrs(phba); 6548 lpfc_sli4_remove_rpis(phba); 6549 6550 /* Free eligible FCF index bmask */ 6551 kfree(phba->fcf.fcf_rr_bmask); 6552 6553 /* Free the ELS sgl list */ 6554 lpfc_free_active_sgl(phba); 6555 lpfc_free_els_sgl_list(phba); 6556 lpfc_free_nvmet_sgl_list(phba); 6557 6558 /* Free the completion queue EQ event pool */ 6559 lpfc_sli4_cq_event_release_all(phba); 6560 lpfc_sli4_cq_event_pool_destroy(phba); 6561 6562 /* Release resource identifiers. */ 6563 lpfc_sli4_dealloc_resource_identifiers(phba); 6564 6565 /* Free the bsmbx region. */ 6566 lpfc_destroy_bootstrap_mbox(phba); 6567 6568 /* Free the SLI Layer memory with SLI4 HBAs */ 6569 lpfc_mem_free_all(phba); 6570 6571 /* Free the current connect table */ 6572 list_for_each_entry_safe(conn_entry, next_conn_entry, 6573 &phba->fcf_conn_rec_list, list) { 6574 list_del_init(&conn_entry->list); 6575 kfree(conn_entry); 6576 } 6577 6578 return; 6579 } 6580 6581 /** 6582 * lpfc_init_api_table_setup - Set up init api function jump table 6583 * @phba: The hba struct for which this call is being executed. 6584 * @dev_grp: The HBA PCI-Device group number. 6585 * 6586 * This routine sets up the device INIT interface API function jump table 6587 * in @phba struct. 6588 * 6589 * Returns: 0 - success, -ENODEV - failure. 6590 **/ 6591 int 6592 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6593 { 6594 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6595 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6596 phba->lpfc_selective_reset = lpfc_selective_reset; 6597 switch (dev_grp) { 6598 case LPFC_PCI_DEV_LP: 6599 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6600 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6601 phba->lpfc_stop_port = lpfc_stop_port_s3; 6602 break; 6603 case LPFC_PCI_DEV_OC: 6604 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6605 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6606 phba->lpfc_stop_port = lpfc_stop_port_s4; 6607 break; 6608 default: 6609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6610 "1431 Invalid HBA PCI-device group: 0x%x\n", 6611 dev_grp); 6612 return -ENODEV; 6613 break; 6614 } 6615 return 0; 6616 } 6617 6618 /** 6619 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6620 * @phba: pointer to lpfc hba data structure. 6621 * 6622 * This routine is invoked to set up the driver internal resources after the 6623 * device specific resource setup to support the HBA device it attached to. 6624 * 6625 * Return codes 6626 * 0 - successful 6627 * other values - error 6628 **/ 6629 static int 6630 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6631 { 6632 int error; 6633 6634 /* Startup the kernel thread for this host adapter. */ 6635 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6636 "lpfc_worker_%d", phba->brd_no); 6637 if (IS_ERR(phba->worker_thread)) { 6638 error = PTR_ERR(phba->worker_thread); 6639 return error; 6640 } 6641 6642 /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */ 6643 if (phba->sli_rev == LPFC_SLI_REV4) 6644 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0); 6645 else 6646 phba->wq = NULL; 6647 6648 return 0; 6649 } 6650 6651 /** 6652 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6653 * @phba: pointer to lpfc hba data structure. 6654 * 6655 * This routine is invoked to unset the driver internal resources set up after 6656 * the device specific resource setup for supporting the HBA device it 6657 * attached to. 6658 **/ 6659 static void 6660 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6661 { 6662 if (phba->wq) { 6663 flush_workqueue(phba->wq); 6664 destroy_workqueue(phba->wq); 6665 phba->wq = NULL; 6666 } 6667 6668 /* Stop kernel worker thread */ 6669 if (phba->worker_thread) 6670 kthread_stop(phba->worker_thread); 6671 } 6672 6673 /** 6674 * lpfc_free_iocb_list - Free iocb list. 6675 * @phba: pointer to lpfc hba data structure. 6676 * 6677 * This routine is invoked to free the driver's IOCB list and memory. 6678 **/ 6679 void 6680 lpfc_free_iocb_list(struct lpfc_hba *phba) 6681 { 6682 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6683 6684 spin_lock_irq(&phba->hbalock); 6685 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6686 &phba->lpfc_iocb_list, list) { 6687 list_del(&iocbq_entry->list); 6688 kfree(iocbq_entry); 6689 phba->total_iocbq_bufs--; 6690 } 6691 spin_unlock_irq(&phba->hbalock); 6692 6693 return; 6694 } 6695 6696 /** 6697 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6698 * @phba: pointer to lpfc hba data structure. 6699 * 6700 * This routine is invoked to allocate and initizlize the driver's IOCB 6701 * list and set up the IOCB tag array accordingly. 6702 * 6703 * Return codes 6704 * 0 - successful 6705 * other values - error 6706 **/ 6707 int 6708 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6709 { 6710 struct lpfc_iocbq *iocbq_entry = NULL; 6711 uint16_t iotag; 6712 int i; 6713 6714 /* Initialize and populate the iocb list per host. */ 6715 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6716 for (i = 0; i < iocb_count; i++) { 6717 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6718 if (iocbq_entry == NULL) { 6719 printk(KERN_ERR "%s: only allocated %d iocbs of " 6720 "expected %d count. Unloading driver.\n", 6721 __func__, i, LPFC_IOCB_LIST_CNT); 6722 goto out_free_iocbq; 6723 } 6724 6725 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6726 if (iotag == 0) { 6727 kfree(iocbq_entry); 6728 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6729 "Unloading driver.\n", __func__); 6730 goto out_free_iocbq; 6731 } 6732 iocbq_entry->sli4_lxritag = NO_XRI; 6733 iocbq_entry->sli4_xritag = NO_XRI; 6734 6735 spin_lock_irq(&phba->hbalock); 6736 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6737 phba->total_iocbq_bufs++; 6738 spin_unlock_irq(&phba->hbalock); 6739 } 6740 6741 return 0; 6742 6743 out_free_iocbq: 6744 lpfc_free_iocb_list(phba); 6745 6746 return -ENOMEM; 6747 } 6748 6749 /** 6750 * lpfc_free_sgl_list - Free a given sgl list. 6751 * @phba: pointer to lpfc hba data structure. 6752 * @sglq_list: pointer to the head of sgl list. 6753 * 6754 * This routine is invoked to free a give sgl list and memory. 6755 **/ 6756 void 6757 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6758 { 6759 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6760 6761 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6762 list_del(&sglq_entry->list); 6763 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6764 kfree(sglq_entry); 6765 } 6766 } 6767 6768 /** 6769 * lpfc_free_els_sgl_list - Free els sgl list. 6770 * @phba: pointer to lpfc hba data structure. 6771 * 6772 * This routine is invoked to free the driver's els sgl list and memory. 6773 **/ 6774 static void 6775 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6776 { 6777 LIST_HEAD(sglq_list); 6778 6779 /* Retrieve all els sgls from driver list */ 6780 spin_lock_irq(&phba->hbalock); 6781 spin_lock(&phba->sli4_hba.sgl_list_lock); 6782 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6783 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6784 spin_unlock_irq(&phba->hbalock); 6785 6786 /* Now free the sgl list */ 6787 lpfc_free_sgl_list(phba, &sglq_list); 6788 } 6789 6790 /** 6791 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6792 * @phba: pointer to lpfc hba data structure. 6793 * 6794 * This routine is invoked to free the driver's nvmet sgl list and memory. 6795 **/ 6796 static void 6797 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6798 { 6799 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6800 LIST_HEAD(sglq_list); 6801 6802 /* Retrieve all nvmet sgls from driver list */ 6803 spin_lock_irq(&phba->hbalock); 6804 spin_lock(&phba->sli4_hba.sgl_list_lock); 6805 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6806 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6807 spin_unlock_irq(&phba->hbalock); 6808 6809 /* Now free the sgl list */ 6810 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6811 list_del(&sglq_entry->list); 6812 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6813 kfree(sglq_entry); 6814 } 6815 6816 /* Update the nvmet_xri_cnt to reflect no current sgls. 6817 * The next initialization cycle sets the count and allocates 6818 * the sgls over again. 6819 */ 6820 phba->sli4_hba.nvmet_xri_cnt = 0; 6821 } 6822 6823 /** 6824 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6825 * @phba: pointer to lpfc hba data structure. 6826 * 6827 * This routine is invoked to allocate the driver's active sgl memory. 6828 * This array will hold the sglq_entry's for active IOs. 6829 **/ 6830 static int 6831 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6832 { 6833 int size; 6834 size = sizeof(struct lpfc_sglq *); 6835 size *= phba->sli4_hba.max_cfg_param.max_xri; 6836 6837 phba->sli4_hba.lpfc_sglq_active_list = 6838 kzalloc(size, GFP_KERNEL); 6839 if (!phba->sli4_hba.lpfc_sglq_active_list) 6840 return -ENOMEM; 6841 return 0; 6842 } 6843 6844 /** 6845 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6846 * @phba: pointer to lpfc hba data structure. 6847 * 6848 * This routine is invoked to walk through the array of active sglq entries 6849 * and free all of the resources. 6850 * This is just a place holder for now. 6851 **/ 6852 static void 6853 lpfc_free_active_sgl(struct lpfc_hba *phba) 6854 { 6855 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6856 } 6857 6858 /** 6859 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6860 * @phba: pointer to lpfc hba data structure. 6861 * 6862 * This routine is invoked to allocate and initizlize the driver's sgl 6863 * list and set up the sgl xritag tag array accordingly. 6864 * 6865 **/ 6866 static void 6867 lpfc_init_sgl_list(struct lpfc_hba *phba) 6868 { 6869 /* Initialize and populate the sglq list per host/VF. */ 6870 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6871 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6872 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6873 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6874 6875 /* els xri-sgl book keeping */ 6876 phba->sli4_hba.els_xri_cnt = 0; 6877 6878 /* scsi xri-buffer book keeping */ 6879 phba->sli4_hba.scsi_xri_cnt = 0; 6880 6881 /* nvme xri-buffer book keeping */ 6882 phba->sli4_hba.nvme_xri_cnt = 0; 6883 } 6884 6885 /** 6886 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6887 * @phba: pointer to lpfc hba data structure. 6888 * 6889 * This routine is invoked to post rpi header templates to the 6890 * port for those SLI4 ports that do not support extents. This routine 6891 * posts a PAGE_SIZE memory region to the port to hold up to 6892 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6893 * and should be called only when interrupts are disabled. 6894 * 6895 * Return codes 6896 * 0 - successful 6897 * -ERROR - otherwise. 6898 **/ 6899 int 6900 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6901 { 6902 int rc = 0; 6903 struct lpfc_rpi_hdr *rpi_hdr; 6904 6905 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6906 if (!phba->sli4_hba.rpi_hdrs_in_use) 6907 return rc; 6908 if (phba->sli4_hba.extents_in_use) 6909 return -EIO; 6910 6911 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6912 if (!rpi_hdr) { 6913 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6914 "0391 Error during rpi post operation\n"); 6915 lpfc_sli4_remove_rpis(phba); 6916 rc = -ENODEV; 6917 } 6918 6919 return rc; 6920 } 6921 6922 /** 6923 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6924 * @phba: pointer to lpfc hba data structure. 6925 * 6926 * This routine is invoked to allocate a single 4KB memory region to 6927 * support rpis and stores them in the phba. This single region 6928 * provides support for up to 64 rpis. The region is used globally 6929 * by the device. 6930 * 6931 * Returns: 6932 * A valid rpi hdr on success. 6933 * A NULL pointer on any failure. 6934 **/ 6935 struct lpfc_rpi_hdr * 6936 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6937 { 6938 uint16_t rpi_limit, curr_rpi_range; 6939 struct lpfc_dmabuf *dmabuf; 6940 struct lpfc_rpi_hdr *rpi_hdr; 6941 6942 /* 6943 * If the SLI4 port supports extents, posting the rpi header isn't 6944 * required. Set the expected maximum count and let the actual value 6945 * get set when extents are fully allocated. 6946 */ 6947 if (!phba->sli4_hba.rpi_hdrs_in_use) 6948 return NULL; 6949 if (phba->sli4_hba.extents_in_use) 6950 return NULL; 6951 6952 /* The limit on the logical index is just the max_rpi count. */ 6953 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6954 6955 spin_lock_irq(&phba->hbalock); 6956 /* 6957 * Establish the starting RPI in this header block. The starting 6958 * rpi is normalized to a zero base because the physical rpi is 6959 * port based. 6960 */ 6961 curr_rpi_range = phba->sli4_hba.next_rpi; 6962 spin_unlock_irq(&phba->hbalock); 6963 6964 /* Reached full RPI range */ 6965 if (curr_rpi_range == rpi_limit) 6966 return NULL; 6967 6968 /* 6969 * First allocate the protocol header region for the port. The 6970 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6971 */ 6972 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6973 if (!dmabuf) 6974 return NULL; 6975 6976 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6977 LPFC_HDR_TEMPLATE_SIZE, 6978 &dmabuf->phys, GFP_KERNEL); 6979 if (!dmabuf->virt) { 6980 rpi_hdr = NULL; 6981 goto err_free_dmabuf; 6982 } 6983 6984 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6985 rpi_hdr = NULL; 6986 goto err_free_coherent; 6987 } 6988 6989 /* Save the rpi header data for cleanup later. */ 6990 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6991 if (!rpi_hdr) 6992 goto err_free_coherent; 6993 6994 rpi_hdr->dmabuf = dmabuf; 6995 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6996 rpi_hdr->page_count = 1; 6997 spin_lock_irq(&phba->hbalock); 6998 6999 /* The rpi_hdr stores the logical index only. */ 7000 rpi_hdr->start_rpi = curr_rpi_range; 7001 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 7002 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 7003 7004 spin_unlock_irq(&phba->hbalock); 7005 return rpi_hdr; 7006 7007 err_free_coherent: 7008 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 7009 dmabuf->virt, dmabuf->phys); 7010 err_free_dmabuf: 7011 kfree(dmabuf); 7012 return NULL; 7013 } 7014 7015 /** 7016 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 7017 * @phba: pointer to lpfc hba data structure. 7018 * 7019 * This routine is invoked to remove all memory resources allocated 7020 * to support rpis for SLI4 ports not supporting extents. This routine 7021 * presumes the caller has released all rpis consumed by fabric or port 7022 * logins and is prepared to have the header pages removed. 7023 **/ 7024 void 7025 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 7026 { 7027 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 7028 7029 if (!phba->sli4_hba.rpi_hdrs_in_use) 7030 goto exit; 7031 7032 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 7033 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 7034 list_del(&rpi_hdr->list); 7035 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 7036 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 7037 kfree(rpi_hdr->dmabuf); 7038 kfree(rpi_hdr); 7039 } 7040 exit: 7041 /* There are no rpis available to the port now. */ 7042 phba->sli4_hba.next_rpi = 0; 7043 } 7044 7045 /** 7046 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 7047 * @pdev: pointer to pci device data structure. 7048 * 7049 * This routine is invoked to allocate the driver hba data structure for an 7050 * HBA device. If the allocation is successful, the phba reference to the 7051 * PCI device data structure is set. 7052 * 7053 * Return codes 7054 * pointer to @phba - successful 7055 * NULL - error 7056 **/ 7057 static struct lpfc_hba * 7058 lpfc_hba_alloc(struct pci_dev *pdev) 7059 { 7060 struct lpfc_hba *phba; 7061 7062 /* Allocate memory for HBA structure */ 7063 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 7064 if (!phba) { 7065 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 7066 return NULL; 7067 } 7068 7069 /* Set reference to PCI device in HBA structure */ 7070 phba->pcidev = pdev; 7071 7072 /* Assign an unused board number */ 7073 phba->brd_no = lpfc_get_instance(); 7074 if (phba->brd_no < 0) { 7075 kfree(phba); 7076 return NULL; 7077 } 7078 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 7079 7080 spin_lock_init(&phba->ct_ev_lock); 7081 INIT_LIST_HEAD(&phba->ct_ev_waiters); 7082 7083 return phba; 7084 } 7085 7086 /** 7087 * lpfc_hba_free - Free driver hba data structure with a device. 7088 * @phba: pointer to lpfc hba data structure. 7089 * 7090 * This routine is invoked to free the driver hba data structure with an 7091 * HBA device. 7092 **/ 7093 static void 7094 lpfc_hba_free(struct lpfc_hba *phba) 7095 { 7096 /* Release the driver assigned board number */ 7097 idr_remove(&lpfc_hba_index, phba->brd_no); 7098 7099 /* Free memory allocated with sli3 rings */ 7100 kfree(phba->sli.sli3_ring); 7101 phba->sli.sli3_ring = NULL; 7102 7103 kfree(phba); 7104 return; 7105 } 7106 7107 /** 7108 * lpfc_create_shost - Create hba physical port with associated scsi host. 7109 * @phba: pointer to lpfc hba data structure. 7110 * 7111 * This routine is invoked to create HBA physical port and associate a SCSI 7112 * host with it. 7113 * 7114 * Return codes 7115 * 0 - successful 7116 * other values - error 7117 **/ 7118 static int 7119 lpfc_create_shost(struct lpfc_hba *phba) 7120 { 7121 struct lpfc_vport *vport; 7122 struct Scsi_Host *shost; 7123 7124 /* Initialize HBA FC structure */ 7125 phba->fc_edtov = FF_DEF_EDTOV; 7126 phba->fc_ratov = FF_DEF_RATOV; 7127 phba->fc_altov = FF_DEF_ALTOV; 7128 phba->fc_arbtov = FF_DEF_ARBTOV; 7129 7130 atomic_set(&phba->sdev_cnt, 0); 7131 atomic_set(&phba->fc4ScsiInputRequests, 0); 7132 atomic_set(&phba->fc4ScsiOutputRequests, 0); 7133 atomic_set(&phba->fc4ScsiControlRequests, 0); 7134 atomic_set(&phba->fc4ScsiIoCmpls, 0); 7135 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 7136 if (!vport) 7137 return -ENODEV; 7138 7139 shost = lpfc_shost_from_vport(vport); 7140 phba->pport = vport; 7141 7142 if (phba->nvmet_support) { 7143 /* Only 1 vport (pport) will support NVME target */ 7144 if (phba->txrdy_payload_pool == NULL) { 7145 phba->txrdy_payload_pool = dma_pool_create( 7146 "txrdy_pool", &phba->pcidev->dev, 7147 TXRDY_PAYLOAD_LEN, 16, 0); 7148 if (phba->txrdy_payload_pool) { 7149 phba->targetport = NULL; 7150 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 7151 lpfc_printf_log(phba, KERN_INFO, 7152 LOG_INIT | LOG_NVME_DISC, 7153 "6076 NVME Target Found\n"); 7154 } 7155 } 7156 } 7157 7158 lpfc_debugfs_initialize(vport); 7159 /* Put reference to SCSI host to driver's device private data */ 7160 pci_set_drvdata(phba->pcidev, shost); 7161 7162 /* 7163 * At this point we are fully registered with PSA. In addition, 7164 * any initial discovery should be completed. 7165 */ 7166 vport->load_flag |= FC_ALLOW_FDMI; 7167 if (phba->cfg_enable_SmartSAN || 7168 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 7169 7170 /* Setup appropriate attribute masks */ 7171 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 7172 if (phba->cfg_enable_SmartSAN) 7173 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 7174 else 7175 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 7176 } 7177 return 0; 7178 } 7179 7180 /** 7181 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 7182 * @phba: pointer to lpfc hba data structure. 7183 * 7184 * This routine is invoked to destroy HBA physical port and the associated 7185 * SCSI host. 7186 **/ 7187 static void 7188 lpfc_destroy_shost(struct lpfc_hba *phba) 7189 { 7190 struct lpfc_vport *vport = phba->pport; 7191 7192 /* Destroy physical port that associated with the SCSI host */ 7193 destroy_port(vport); 7194 7195 return; 7196 } 7197 7198 /** 7199 * lpfc_setup_bg - Setup Block guard structures and debug areas. 7200 * @phba: pointer to lpfc hba data structure. 7201 * @shost: the shost to be used to detect Block guard settings. 7202 * 7203 * This routine sets up the local Block guard protocol settings for @shost. 7204 * This routine also allocates memory for debugging bg buffers. 7205 **/ 7206 static void 7207 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 7208 { 7209 uint32_t old_mask; 7210 uint32_t old_guard; 7211 7212 int pagecnt = 10; 7213 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 7214 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7215 "1478 Registering BlockGuard with the " 7216 "SCSI layer\n"); 7217 7218 old_mask = phba->cfg_prot_mask; 7219 old_guard = phba->cfg_prot_guard; 7220 7221 /* Only allow supported values */ 7222 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 7223 SHOST_DIX_TYPE0_PROTECTION | 7224 SHOST_DIX_TYPE1_PROTECTION); 7225 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 7226 SHOST_DIX_GUARD_CRC); 7227 7228 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 7229 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 7230 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 7231 7232 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 7233 if ((old_mask != phba->cfg_prot_mask) || 7234 (old_guard != phba->cfg_prot_guard)) 7235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7236 "1475 Registering BlockGuard with the " 7237 "SCSI layer: mask %d guard %d\n", 7238 phba->cfg_prot_mask, 7239 phba->cfg_prot_guard); 7240 7241 scsi_host_set_prot(shost, phba->cfg_prot_mask); 7242 scsi_host_set_guard(shost, phba->cfg_prot_guard); 7243 } else 7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7245 "1479 Not Registering BlockGuard with the SCSI " 7246 "layer, Bad protection parameters: %d %d\n", 7247 old_mask, old_guard); 7248 } 7249 7250 if (!_dump_buf_data) { 7251 while (pagecnt) { 7252 spin_lock_init(&_dump_buf_lock); 7253 _dump_buf_data = 7254 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7255 if (_dump_buf_data) { 7256 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7257 "9043 BLKGRD: allocated %d pages for " 7258 "_dump_buf_data at 0x%p\n", 7259 (1 << pagecnt), _dump_buf_data); 7260 _dump_buf_data_order = pagecnt; 7261 memset(_dump_buf_data, 0, 7262 ((1 << PAGE_SHIFT) << pagecnt)); 7263 break; 7264 } else 7265 --pagecnt; 7266 } 7267 if (!_dump_buf_data_order) 7268 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7269 "9044 BLKGRD: ERROR unable to allocate " 7270 "memory for hexdump\n"); 7271 } else 7272 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7273 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 7274 "\n", _dump_buf_data); 7275 if (!_dump_buf_dif) { 7276 while (pagecnt) { 7277 _dump_buf_dif = 7278 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 7279 if (_dump_buf_dif) { 7280 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7281 "9046 BLKGRD: allocated %d pages for " 7282 "_dump_buf_dif at 0x%p\n", 7283 (1 << pagecnt), _dump_buf_dif); 7284 _dump_buf_dif_order = pagecnt; 7285 memset(_dump_buf_dif, 0, 7286 ((1 << PAGE_SHIFT) << pagecnt)); 7287 break; 7288 } else 7289 --pagecnt; 7290 } 7291 if (!_dump_buf_dif_order) 7292 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7293 "9047 BLKGRD: ERROR unable to allocate " 7294 "memory for hexdump\n"); 7295 } else 7296 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7297 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7298 _dump_buf_dif); 7299 } 7300 7301 /** 7302 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7303 * @phba: pointer to lpfc hba data structure. 7304 * 7305 * This routine is invoked to perform all the necessary post initialization 7306 * setup for the device. 7307 **/ 7308 static void 7309 lpfc_post_init_setup(struct lpfc_hba *phba) 7310 { 7311 struct Scsi_Host *shost; 7312 struct lpfc_adapter_event_header adapter_event; 7313 7314 /* Get the default values for Model Name and Description */ 7315 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7316 7317 /* 7318 * hba setup may have changed the hba_queue_depth so we need to 7319 * adjust the value of can_queue. 7320 */ 7321 shost = pci_get_drvdata(phba->pcidev); 7322 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7323 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7324 lpfc_setup_bg(phba, shost); 7325 7326 lpfc_host_attrib_init(shost); 7327 7328 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7329 spin_lock_irq(shost->host_lock); 7330 lpfc_poll_start_timer(phba); 7331 spin_unlock_irq(shost->host_lock); 7332 } 7333 7334 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7335 "0428 Perform SCSI scan\n"); 7336 /* Send board arrival event to upper layer */ 7337 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7338 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7339 fc_host_post_vendor_event(shost, fc_get_event_number(), 7340 sizeof(adapter_event), 7341 (char *) &adapter_event, 7342 LPFC_NL_VENDOR_ID); 7343 return; 7344 } 7345 7346 /** 7347 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7348 * @phba: pointer to lpfc hba data structure. 7349 * 7350 * This routine is invoked to set up the PCI device memory space for device 7351 * with SLI-3 interface spec. 7352 * 7353 * Return codes 7354 * 0 - successful 7355 * other values - error 7356 **/ 7357 static int 7358 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7359 { 7360 struct pci_dev *pdev = phba->pcidev; 7361 unsigned long bar0map_len, bar2map_len; 7362 int i, hbq_count; 7363 void *ptr; 7364 int error; 7365 7366 if (!pdev) 7367 return -ENODEV; 7368 7369 /* Set the device DMA mask size */ 7370 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 7371 if (error) 7372 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 7373 if (error) 7374 return error; 7375 error = -ENODEV; 7376 7377 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7378 * required by each mapping. 7379 */ 7380 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7381 bar0map_len = pci_resource_len(pdev, 0); 7382 7383 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7384 bar2map_len = pci_resource_len(pdev, 2); 7385 7386 /* Map HBA SLIM to a kernel virtual address. */ 7387 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7388 if (!phba->slim_memmap_p) { 7389 dev_printk(KERN_ERR, &pdev->dev, 7390 "ioremap failed for SLIM memory.\n"); 7391 goto out; 7392 } 7393 7394 /* Map HBA Control Registers to a kernel virtual address. */ 7395 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7396 if (!phba->ctrl_regs_memmap_p) { 7397 dev_printk(KERN_ERR, &pdev->dev, 7398 "ioremap failed for HBA control registers.\n"); 7399 goto out_iounmap_slim; 7400 } 7401 7402 /* Allocate memory for SLI-2 structures */ 7403 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7404 &phba->slim2p.phys, GFP_KERNEL); 7405 if (!phba->slim2p.virt) 7406 goto out_iounmap; 7407 7408 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7409 phba->mbox_ext = (phba->slim2p.virt + 7410 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7411 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7412 phba->IOCBs = (phba->slim2p.virt + 7413 offsetof(struct lpfc_sli2_slim, IOCBs)); 7414 7415 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7416 lpfc_sli_hbq_size(), 7417 &phba->hbqslimp.phys, 7418 GFP_KERNEL); 7419 if (!phba->hbqslimp.virt) 7420 goto out_free_slim; 7421 7422 hbq_count = lpfc_sli_hbq_count(); 7423 ptr = phba->hbqslimp.virt; 7424 for (i = 0; i < hbq_count; ++i) { 7425 phba->hbqs[i].hbq_virt = ptr; 7426 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7427 ptr += (lpfc_hbq_defs[i]->entry_count * 7428 sizeof(struct lpfc_hbq_entry)); 7429 } 7430 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7431 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7432 7433 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7434 7435 phba->MBslimaddr = phba->slim_memmap_p; 7436 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7437 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7438 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7439 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7440 7441 return 0; 7442 7443 out_free_slim: 7444 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7445 phba->slim2p.virt, phba->slim2p.phys); 7446 out_iounmap: 7447 iounmap(phba->ctrl_regs_memmap_p); 7448 out_iounmap_slim: 7449 iounmap(phba->slim_memmap_p); 7450 out: 7451 return error; 7452 } 7453 7454 /** 7455 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7456 * @phba: pointer to lpfc hba data structure. 7457 * 7458 * This routine is invoked to unset the PCI device memory space for device 7459 * with SLI-3 interface spec. 7460 **/ 7461 static void 7462 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7463 { 7464 struct pci_dev *pdev; 7465 7466 /* Obtain PCI device reference */ 7467 if (!phba->pcidev) 7468 return; 7469 else 7470 pdev = phba->pcidev; 7471 7472 /* Free coherent DMA memory allocated */ 7473 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7474 phba->hbqslimp.virt, phba->hbqslimp.phys); 7475 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7476 phba->slim2p.virt, phba->slim2p.phys); 7477 7478 /* I/O memory unmap */ 7479 iounmap(phba->ctrl_regs_memmap_p); 7480 iounmap(phba->slim_memmap_p); 7481 7482 return; 7483 } 7484 7485 /** 7486 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7487 * @phba: pointer to lpfc hba data structure. 7488 * 7489 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7490 * done and check status. 7491 * 7492 * Return 0 if successful, otherwise -ENODEV. 7493 **/ 7494 int 7495 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7496 { 7497 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7498 struct lpfc_register reg_data; 7499 int i, port_error = 0; 7500 uint32_t if_type; 7501 7502 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7503 memset(®_data, 0, sizeof(reg_data)); 7504 if (!phba->sli4_hba.PSMPHRregaddr) 7505 return -ENODEV; 7506 7507 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7508 for (i = 0; i < 3000; i++) { 7509 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7510 &portsmphr_reg.word0) || 7511 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7512 /* Port has a fatal POST error, break out */ 7513 port_error = -ENODEV; 7514 break; 7515 } 7516 if (LPFC_POST_STAGE_PORT_READY == 7517 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7518 break; 7519 msleep(10); 7520 } 7521 7522 /* 7523 * If there was a port error during POST, then don't proceed with 7524 * other register reads as the data may not be valid. Just exit. 7525 */ 7526 if (port_error) { 7527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7528 "1408 Port Failed POST - portsmphr=0x%x, " 7529 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7530 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7531 portsmphr_reg.word0, 7532 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7533 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7534 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7535 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7536 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7537 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7538 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7539 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7540 } else { 7541 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7542 "2534 Device Info: SLIFamily=0x%x, " 7543 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7544 "SLIHint_2=0x%x, FT=0x%x\n", 7545 bf_get(lpfc_sli_intf_sli_family, 7546 &phba->sli4_hba.sli_intf), 7547 bf_get(lpfc_sli_intf_slirev, 7548 &phba->sli4_hba.sli_intf), 7549 bf_get(lpfc_sli_intf_if_type, 7550 &phba->sli4_hba.sli_intf), 7551 bf_get(lpfc_sli_intf_sli_hint1, 7552 &phba->sli4_hba.sli_intf), 7553 bf_get(lpfc_sli_intf_sli_hint2, 7554 &phba->sli4_hba.sli_intf), 7555 bf_get(lpfc_sli_intf_func_type, 7556 &phba->sli4_hba.sli_intf)); 7557 /* 7558 * Check for other Port errors during the initialization 7559 * process. Fail the load if the port did not come up 7560 * correctly. 7561 */ 7562 if_type = bf_get(lpfc_sli_intf_if_type, 7563 &phba->sli4_hba.sli_intf); 7564 switch (if_type) { 7565 case LPFC_SLI_INTF_IF_TYPE_0: 7566 phba->sli4_hba.ue_mask_lo = 7567 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7568 phba->sli4_hba.ue_mask_hi = 7569 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7570 uerrlo_reg.word0 = 7571 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7572 uerrhi_reg.word0 = 7573 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7574 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7575 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7577 "1422 Unrecoverable Error " 7578 "Detected during POST " 7579 "uerr_lo_reg=0x%x, " 7580 "uerr_hi_reg=0x%x, " 7581 "ue_mask_lo_reg=0x%x, " 7582 "ue_mask_hi_reg=0x%x\n", 7583 uerrlo_reg.word0, 7584 uerrhi_reg.word0, 7585 phba->sli4_hba.ue_mask_lo, 7586 phba->sli4_hba.ue_mask_hi); 7587 port_error = -ENODEV; 7588 } 7589 break; 7590 case LPFC_SLI_INTF_IF_TYPE_2: 7591 case LPFC_SLI_INTF_IF_TYPE_6: 7592 /* Final checks. The port status should be clean. */ 7593 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7594 ®_data.word0) || 7595 (bf_get(lpfc_sliport_status_err, ®_data) && 7596 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7597 phba->work_status[0] = 7598 readl(phba->sli4_hba.u.if_type2. 7599 ERR1regaddr); 7600 phba->work_status[1] = 7601 readl(phba->sli4_hba.u.if_type2. 7602 ERR2regaddr); 7603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7604 "2888 Unrecoverable port error " 7605 "following POST: port status reg " 7606 "0x%x, port_smphr reg 0x%x, " 7607 "error 1=0x%x, error 2=0x%x\n", 7608 reg_data.word0, 7609 portsmphr_reg.word0, 7610 phba->work_status[0], 7611 phba->work_status[1]); 7612 port_error = -ENODEV; 7613 } 7614 break; 7615 case LPFC_SLI_INTF_IF_TYPE_1: 7616 default: 7617 break; 7618 } 7619 } 7620 return port_error; 7621 } 7622 7623 /** 7624 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7625 * @phba: pointer to lpfc hba data structure. 7626 * @if_type: The SLI4 interface type getting configured. 7627 * 7628 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7629 * memory map. 7630 **/ 7631 static void 7632 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7633 { 7634 switch (if_type) { 7635 case LPFC_SLI_INTF_IF_TYPE_0: 7636 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7637 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7638 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7639 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7640 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7641 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7642 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7643 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7644 phba->sli4_hba.SLIINTFregaddr = 7645 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7646 break; 7647 case LPFC_SLI_INTF_IF_TYPE_2: 7648 phba->sli4_hba.u.if_type2.EQDregaddr = 7649 phba->sli4_hba.conf_regs_memmap_p + 7650 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7651 phba->sli4_hba.u.if_type2.ERR1regaddr = 7652 phba->sli4_hba.conf_regs_memmap_p + 7653 LPFC_CTL_PORT_ER1_OFFSET; 7654 phba->sli4_hba.u.if_type2.ERR2regaddr = 7655 phba->sli4_hba.conf_regs_memmap_p + 7656 LPFC_CTL_PORT_ER2_OFFSET; 7657 phba->sli4_hba.u.if_type2.CTRLregaddr = 7658 phba->sli4_hba.conf_regs_memmap_p + 7659 LPFC_CTL_PORT_CTL_OFFSET; 7660 phba->sli4_hba.u.if_type2.STATUSregaddr = 7661 phba->sli4_hba.conf_regs_memmap_p + 7662 LPFC_CTL_PORT_STA_OFFSET; 7663 phba->sli4_hba.SLIINTFregaddr = 7664 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7665 phba->sli4_hba.PSMPHRregaddr = 7666 phba->sli4_hba.conf_regs_memmap_p + 7667 LPFC_CTL_PORT_SEM_OFFSET; 7668 phba->sli4_hba.RQDBregaddr = 7669 phba->sli4_hba.conf_regs_memmap_p + 7670 LPFC_ULP0_RQ_DOORBELL; 7671 phba->sli4_hba.WQDBregaddr = 7672 phba->sli4_hba.conf_regs_memmap_p + 7673 LPFC_ULP0_WQ_DOORBELL; 7674 phba->sli4_hba.CQDBregaddr = 7675 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7676 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 7677 phba->sli4_hba.MQDBregaddr = 7678 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7679 phba->sli4_hba.BMBXregaddr = 7680 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7681 break; 7682 case LPFC_SLI_INTF_IF_TYPE_6: 7683 phba->sli4_hba.u.if_type2.EQDregaddr = 7684 phba->sli4_hba.conf_regs_memmap_p + 7685 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7686 phba->sli4_hba.u.if_type2.ERR1regaddr = 7687 phba->sli4_hba.conf_regs_memmap_p + 7688 LPFC_CTL_PORT_ER1_OFFSET; 7689 phba->sli4_hba.u.if_type2.ERR2regaddr = 7690 phba->sli4_hba.conf_regs_memmap_p + 7691 LPFC_CTL_PORT_ER2_OFFSET; 7692 phba->sli4_hba.u.if_type2.CTRLregaddr = 7693 phba->sli4_hba.conf_regs_memmap_p + 7694 LPFC_CTL_PORT_CTL_OFFSET; 7695 phba->sli4_hba.u.if_type2.STATUSregaddr = 7696 phba->sli4_hba.conf_regs_memmap_p + 7697 LPFC_CTL_PORT_STA_OFFSET; 7698 phba->sli4_hba.PSMPHRregaddr = 7699 phba->sli4_hba.conf_regs_memmap_p + 7700 LPFC_CTL_PORT_SEM_OFFSET; 7701 phba->sli4_hba.BMBXregaddr = 7702 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7703 break; 7704 case LPFC_SLI_INTF_IF_TYPE_1: 7705 default: 7706 dev_printk(KERN_ERR, &phba->pcidev->dev, 7707 "FATAL - unsupported SLI4 interface type - %d\n", 7708 if_type); 7709 break; 7710 } 7711 } 7712 7713 /** 7714 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7715 * @phba: pointer to lpfc hba data structure. 7716 * 7717 * This routine is invoked to set up SLI4 BAR1 register memory map. 7718 **/ 7719 static void 7720 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7721 { 7722 switch (if_type) { 7723 case LPFC_SLI_INTF_IF_TYPE_0: 7724 phba->sli4_hba.PSMPHRregaddr = 7725 phba->sli4_hba.ctrl_regs_memmap_p + 7726 LPFC_SLIPORT_IF0_SMPHR; 7727 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7728 LPFC_HST_ISR0; 7729 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7730 LPFC_HST_IMR0; 7731 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7732 LPFC_HST_ISCR0; 7733 break; 7734 case LPFC_SLI_INTF_IF_TYPE_6: 7735 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7736 LPFC_IF6_RQ_DOORBELL; 7737 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7738 LPFC_IF6_WQ_DOORBELL; 7739 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7740 LPFC_IF6_CQ_DOORBELL; 7741 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7742 LPFC_IF6_EQ_DOORBELL; 7743 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + 7744 LPFC_IF6_MQ_DOORBELL; 7745 break; 7746 case LPFC_SLI_INTF_IF_TYPE_2: 7747 case LPFC_SLI_INTF_IF_TYPE_1: 7748 default: 7749 dev_err(&phba->pcidev->dev, 7750 "FATAL - unsupported SLI4 interface type - %d\n", 7751 if_type); 7752 break; 7753 } 7754 } 7755 7756 /** 7757 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7758 * @phba: pointer to lpfc hba data structure. 7759 * @vf: virtual function number 7760 * 7761 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7762 * based on the given viftual function number, @vf. 7763 * 7764 * Return 0 if successful, otherwise -ENODEV. 7765 **/ 7766 static int 7767 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7768 { 7769 if (vf > LPFC_VIR_FUNC_MAX) 7770 return -ENODEV; 7771 7772 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7773 vf * LPFC_VFR_PAGE_SIZE + 7774 LPFC_ULP0_RQ_DOORBELL); 7775 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7776 vf * LPFC_VFR_PAGE_SIZE + 7777 LPFC_ULP0_WQ_DOORBELL); 7778 phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7779 vf * LPFC_VFR_PAGE_SIZE + 7780 LPFC_EQCQ_DOORBELL); 7781 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; 7782 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7783 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7784 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7785 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7786 return 0; 7787 } 7788 7789 /** 7790 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7791 * @phba: pointer to lpfc hba data structure. 7792 * 7793 * This routine is invoked to create the bootstrap mailbox 7794 * region consistent with the SLI-4 interface spec. This 7795 * routine allocates all memory necessary to communicate 7796 * mailbox commands to the port and sets up all alignment 7797 * needs. No locks are expected to be held when calling 7798 * this routine. 7799 * 7800 * Return codes 7801 * 0 - successful 7802 * -ENOMEM - could not allocated memory. 7803 **/ 7804 static int 7805 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7806 { 7807 uint32_t bmbx_size; 7808 struct lpfc_dmabuf *dmabuf; 7809 struct dma_address *dma_address; 7810 uint32_t pa_addr; 7811 uint64_t phys_addr; 7812 7813 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7814 if (!dmabuf) 7815 return -ENOMEM; 7816 7817 /* 7818 * The bootstrap mailbox region is comprised of 2 parts 7819 * plus an alignment restriction of 16 bytes. 7820 */ 7821 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7822 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size, 7823 &dmabuf->phys, GFP_KERNEL); 7824 if (!dmabuf->virt) { 7825 kfree(dmabuf); 7826 return -ENOMEM; 7827 } 7828 7829 /* 7830 * Initialize the bootstrap mailbox pointers now so that the register 7831 * operations are simple later. The mailbox dma address is required 7832 * to be 16-byte aligned. Also align the virtual memory as each 7833 * maibox is copied into the bmbx mailbox region before issuing the 7834 * command to the port. 7835 */ 7836 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7837 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7838 7839 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7840 LPFC_ALIGN_16_BYTE); 7841 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7842 LPFC_ALIGN_16_BYTE); 7843 7844 /* 7845 * Set the high and low physical addresses now. The SLI4 alignment 7846 * requirement is 16 bytes and the mailbox is posted to the port 7847 * as two 30-bit addresses. The other data is a bit marking whether 7848 * the 30-bit address is the high or low address. 7849 * Upcast bmbx aphys to 64bits so shift instruction compiles 7850 * clean on 32 bit machines. 7851 */ 7852 dma_address = &phba->sli4_hba.bmbx.dma_address; 7853 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7854 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7855 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7856 LPFC_BMBX_BIT1_ADDR_HI); 7857 7858 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7859 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7860 LPFC_BMBX_BIT1_ADDR_LO); 7861 return 0; 7862 } 7863 7864 /** 7865 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7866 * @phba: pointer to lpfc hba data structure. 7867 * 7868 * This routine is invoked to teardown the bootstrap mailbox 7869 * region and release all host resources. This routine requires 7870 * the caller to ensure all mailbox commands recovered, no 7871 * additional mailbox comands are sent, and interrupts are disabled 7872 * before calling this routine. 7873 * 7874 **/ 7875 static void 7876 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7877 { 7878 dma_free_coherent(&phba->pcidev->dev, 7879 phba->sli4_hba.bmbx.bmbx_size, 7880 phba->sli4_hba.bmbx.dmabuf->virt, 7881 phba->sli4_hba.bmbx.dmabuf->phys); 7882 7883 kfree(phba->sli4_hba.bmbx.dmabuf); 7884 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7885 } 7886 7887 /** 7888 * lpfc_sli4_read_config - Get the config parameters. 7889 * @phba: pointer to lpfc hba data structure. 7890 * 7891 * This routine is invoked to read the configuration parameters from the HBA. 7892 * The configuration parameters are used to set the base and maximum values 7893 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7894 * allocation for the port. 7895 * 7896 * Return codes 7897 * 0 - successful 7898 * -ENOMEM - No available memory 7899 * -EIO - The mailbox failed to complete successfully. 7900 **/ 7901 int 7902 lpfc_sli4_read_config(struct lpfc_hba *phba) 7903 { 7904 LPFC_MBOXQ_t *pmb; 7905 struct lpfc_mbx_read_config *rd_config; 7906 union lpfc_sli4_cfg_shdr *shdr; 7907 uint32_t shdr_status, shdr_add_status; 7908 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7909 struct lpfc_rsrc_desc_fcfcoe *desc; 7910 char *pdesc_0; 7911 uint16_t forced_link_speed; 7912 uint32_t if_type; 7913 int length, i, rc = 0, rc2; 7914 7915 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7916 if (!pmb) { 7917 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7918 "2011 Unable to allocate memory for issuing " 7919 "SLI_CONFIG_SPECIAL mailbox command\n"); 7920 return -ENOMEM; 7921 } 7922 7923 lpfc_read_config(phba, pmb); 7924 7925 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7926 if (rc != MBX_SUCCESS) { 7927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7928 "2012 Mailbox failed , mbxCmd x%x " 7929 "READ_CONFIG, mbxStatus x%x\n", 7930 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7931 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7932 rc = -EIO; 7933 } else { 7934 rd_config = &pmb->u.mqe.un.rd_config; 7935 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7936 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7937 phba->sli4_hba.lnk_info.lnk_tp = 7938 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7939 phba->sli4_hba.lnk_info.lnk_no = 7940 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7941 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7942 "3081 lnk_type:%d, lnk_numb:%d\n", 7943 phba->sli4_hba.lnk_info.lnk_tp, 7944 phba->sli4_hba.lnk_info.lnk_no); 7945 } else 7946 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7947 "3082 Mailbox (x%x) returned ldv:x0\n", 7948 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7949 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { 7950 phba->bbcredit_support = 1; 7951 phba->sli4_hba.bbscn_params.word0 = rd_config->word8; 7952 } 7953 7954 phba->sli4_hba.conf_trunk = 7955 bf_get(lpfc_mbx_rd_conf_trunk, rd_config); 7956 phba->sli4_hba.extents_in_use = 7957 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7958 phba->sli4_hba.max_cfg_param.max_xri = 7959 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7960 phba->sli4_hba.max_cfg_param.xri_base = 7961 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7962 phba->sli4_hba.max_cfg_param.max_vpi = 7963 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7964 /* Limit the max we support */ 7965 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS) 7966 phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS; 7967 phba->sli4_hba.max_cfg_param.vpi_base = 7968 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7969 phba->sli4_hba.max_cfg_param.max_rpi = 7970 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7971 phba->sli4_hba.max_cfg_param.rpi_base = 7972 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7973 phba->sli4_hba.max_cfg_param.max_vfi = 7974 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7975 phba->sli4_hba.max_cfg_param.vfi_base = 7976 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7977 phba->sli4_hba.max_cfg_param.max_fcfi = 7978 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7979 phba->sli4_hba.max_cfg_param.max_eq = 7980 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7981 phba->sli4_hba.max_cfg_param.max_rq = 7982 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7983 phba->sli4_hba.max_cfg_param.max_wq = 7984 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7985 phba->sli4_hba.max_cfg_param.max_cq = 7986 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7987 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7988 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7989 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7990 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7991 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7992 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7993 phba->max_vports = phba->max_vpi; 7994 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7995 "2003 cfg params Extents? %d " 7996 "XRI(B:%d M:%d), " 7997 "VPI(B:%d M:%d) " 7998 "VFI(B:%d M:%d) " 7999 "RPI(B:%d M:%d) " 8000 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 8001 phba->sli4_hba.extents_in_use, 8002 phba->sli4_hba.max_cfg_param.xri_base, 8003 phba->sli4_hba.max_cfg_param.max_xri, 8004 phba->sli4_hba.max_cfg_param.vpi_base, 8005 phba->sli4_hba.max_cfg_param.max_vpi, 8006 phba->sli4_hba.max_cfg_param.vfi_base, 8007 phba->sli4_hba.max_cfg_param.max_vfi, 8008 phba->sli4_hba.max_cfg_param.rpi_base, 8009 phba->sli4_hba.max_cfg_param.max_rpi, 8010 phba->sli4_hba.max_cfg_param.max_fcfi, 8011 phba->sli4_hba.max_cfg_param.max_eq, 8012 phba->sli4_hba.max_cfg_param.max_cq, 8013 phba->sli4_hba.max_cfg_param.max_wq, 8014 phba->sli4_hba.max_cfg_param.max_rq); 8015 8016 /* 8017 * Calculate NVME queue resources based on how 8018 * many WQ/CQs are available. 8019 */ 8020 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8021 length = phba->sli4_hba.max_cfg_param.max_wq; 8022 if (phba->sli4_hba.max_cfg_param.max_cq < 8023 phba->sli4_hba.max_cfg_param.max_wq) 8024 length = phba->sli4_hba.max_cfg_param.max_cq; 8025 8026 /* 8027 * Whats left after this can go toward NVME. 8028 * The minus 6 accounts for ELS, NVME LS, MBOX 8029 * fof plus a couple extra. When configured for 8030 * NVMET, FCP io channel WQs are not created. 8031 */ 8032 length -= 6; 8033 if (!phba->nvmet_support) 8034 length -= phba->cfg_fcp_io_channel; 8035 8036 if (phba->cfg_nvme_io_channel > length) { 8037 lpfc_printf_log( 8038 phba, KERN_ERR, LOG_SLI, 8039 "2005 Reducing NVME IO channel to %d: " 8040 "WQ %d CQ %d NVMEIO %d FCPIO %d\n", 8041 length, 8042 phba->sli4_hba.max_cfg_param.max_wq, 8043 phba->sli4_hba.max_cfg_param.max_cq, 8044 phba->cfg_nvme_io_channel, 8045 phba->cfg_fcp_io_channel); 8046 8047 phba->cfg_nvme_io_channel = length; 8048 } 8049 } 8050 } 8051 8052 if (rc) 8053 goto read_cfg_out; 8054 8055 /* Update link speed if forced link speed is supported */ 8056 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8057 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 8058 forced_link_speed = 8059 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 8060 if (forced_link_speed) { 8061 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 8062 8063 switch (forced_link_speed) { 8064 case LINK_SPEED_1G: 8065 phba->cfg_link_speed = 8066 LPFC_USER_LINK_SPEED_1G; 8067 break; 8068 case LINK_SPEED_2G: 8069 phba->cfg_link_speed = 8070 LPFC_USER_LINK_SPEED_2G; 8071 break; 8072 case LINK_SPEED_4G: 8073 phba->cfg_link_speed = 8074 LPFC_USER_LINK_SPEED_4G; 8075 break; 8076 case LINK_SPEED_8G: 8077 phba->cfg_link_speed = 8078 LPFC_USER_LINK_SPEED_8G; 8079 break; 8080 case LINK_SPEED_10G: 8081 phba->cfg_link_speed = 8082 LPFC_USER_LINK_SPEED_10G; 8083 break; 8084 case LINK_SPEED_16G: 8085 phba->cfg_link_speed = 8086 LPFC_USER_LINK_SPEED_16G; 8087 break; 8088 case LINK_SPEED_32G: 8089 phba->cfg_link_speed = 8090 LPFC_USER_LINK_SPEED_32G; 8091 break; 8092 case LINK_SPEED_64G: 8093 phba->cfg_link_speed = 8094 LPFC_USER_LINK_SPEED_64G; 8095 break; 8096 case 0xffff: 8097 phba->cfg_link_speed = 8098 LPFC_USER_LINK_SPEED_AUTO; 8099 break; 8100 default: 8101 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8102 "0047 Unrecognized link " 8103 "speed : %d\n", 8104 forced_link_speed); 8105 phba->cfg_link_speed = 8106 LPFC_USER_LINK_SPEED_AUTO; 8107 } 8108 } 8109 } 8110 8111 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 8112 length = phba->sli4_hba.max_cfg_param.max_xri - 8113 lpfc_sli4_get_els_iocb_cnt(phba); 8114 if (phba->cfg_hba_queue_depth > length) { 8115 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8116 "3361 HBA queue depth changed from %d to %d\n", 8117 phba->cfg_hba_queue_depth, length); 8118 phba->cfg_hba_queue_depth = length; 8119 } 8120 8121 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 8122 LPFC_SLI_INTF_IF_TYPE_2) 8123 goto read_cfg_out; 8124 8125 /* get the pf# and vf# for SLI4 if_type 2 port */ 8126 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 8127 sizeof(struct lpfc_sli4_cfg_mhdr)); 8128 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 8129 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 8130 length, LPFC_SLI4_MBX_EMBED); 8131 8132 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8133 shdr = (union lpfc_sli4_cfg_shdr *) 8134 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 8135 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8136 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8137 if (rc2 || shdr_status || shdr_add_status) { 8138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8139 "3026 Mailbox failed , mbxCmd x%x " 8140 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 8141 bf_get(lpfc_mqe_command, &pmb->u.mqe), 8142 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 8143 goto read_cfg_out; 8144 } 8145 8146 /* search for fc_fcoe resrouce descriptor */ 8147 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 8148 8149 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 8150 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 8151 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 8152 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 8153 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 8154 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 8155 goto read_cfg_out; 8156 8157 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 8158 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 8159 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 8160 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 8161 phba->sli4_hba.iov.pf_number = 8162 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 8163 phba->sli4_hba.iov.vf_number = 8164 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 8165 break; 8166 } 8167 } 8168 8169 if (i < LPFC_RSRC_DESC_MAX_NUM) 8170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 8171 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 8172 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 8173 phba->sli4_hba.iov.vf_number); 8174 else 8175 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 8176 "3028 GET_FUNCTION_CONFIG: failed to find " 8177 "Resource Descriptor:x%x\n", 8178 LPFC_RSRC_DESC_TYPE_FCFCOE); 8179 8180 read_cfg_out: 8181 mempool_free(pmb, phba->mbox_mem_pool); 8182 return rc; 8183 } 8184 8185 /** 8186 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 8187 * @phba: pointer to lpfc hba data structure. 8188 * 8189 * This routine is invoked to setup the port-side endian order when 8190 * the port if_type is 0. This routine has no function for other 8191 * if_types. 8192 * 8193 * Return codes 8194 * 0 - successful 8195 * -ENOMEM - No available memory 8196 * -EIO - The mailbox failed to complete successfully. 8197 **/ 8198 static int 8199 lpfc_setup_endian_order(struct lpfc_hba *phba) 8200 { 8201 LPFC_MBOXQ_t *mboxq; 8202 uint32_t if_type, rc = 0; 8203 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 8204 HOST_ENDIAN_HIGH_WORD1}; 8205 8206 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8207 switch (if_type) { 8208 case LPFC_SLI_INTF_IF_TYPE_0: 8209 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 8210 GFP_KERNEL); 8211 if (!mboxq) { 8212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8213 "0492 Unable to allocate memory for " 8214 "issuing SLI_CONFIG_SPECIAL mailbox " 8215 "command\n"); 8216 return -ENOMEM; 8217 } 8218 8219 /* 8220 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 8221 * two words to contain special data values and no other data. 8222 */ 8223 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 8224 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 8225 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8226 if (rc != MBX_SUCCESS) { 8227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8228 "0493 SLI_CONFIG_SPECIAL mailbox " 8229 "failed with status x%x\n", 8230 rc); 8231 rc = -EIO; 8232 } 8233 mempool_free(mboxq, phba->mbox_mem_pool); 8234 break; 8235 case LPFC_SLI_INTF_IF_TYPE_6: 8236 case LPFC_SLI_INTF_IF_TYPE_2: 8237 case LPFC_SLI_INTF_IF_TYPE_1: 8238 default: 8239 break; 8240 } 8241 return rc; 8242 } 8243 8244 /** 8245 * lpfc_sli4_queue_verify - Verify and update EQ counts 8246 * @phba: pointer to lpfc hba data structure. 8247 * 8248 * This routine is invoked to check the user settable queue counts for EQs. 8249 * After this routine is called the counts will be set to valid values that 8250 * adhere to the constraints of the system's interrupt vectors and the port's 8251 * queue resources. 8252 * 8253 * Return codes 8254 * 0 - successful 8255 * -ENOMEM - No available memory 8256 **/ 8257 static int 8258 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 8259 { 8260 int io_channel; 8261 int fof_vectors = phba->cfg_fof ? 1 : 0; 8262 8263 /* 8264 * Sanity check for configured queue parameters against the run-time 8265 * device parameters 8266 */ 8267 8268 /* Sanity check on HBA EQ parameters */ 8269 io_channel = phba->io_channel_irqs; 8270 8271 if (phba->sli4_hba.num_online_cpu < io_channel) { 8272 lpfc_printf_log(phba, 8273 KERN_ERR, LOG_INIT, 8274 "3188 Reducing IO channels to match number of " 8275 "online CPUs: from %d to %d\n", 8276 io_channel, phba->sli4_hba.num_online_cpu); 8277 io_channel = phba->sli4_hba.num_online_cpu; 8278 } 8279 8280 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 8281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8282 "2575 Reducing IO channels to match number of " 8283 "available EQs: from %d to %d\n", 8284 io_channel, 8285 phba->sli4_hba.max_cfg_param.max_eq); 8286 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 8287 } 8288 8289 /* The actual number of FCP / NVME event queues adopted */ 8290 if (io_channel != phba->io_channel_irqs) 8291 phba->io_channel_irqs = io_channel; 8292 if (phba->cfg_fcp_io_channel > io_channel) 8293 phba->cfg_fcp_io_channel = io_channel; 8294 if (phba->cfg_nvme_io_channel > io_channel) 8295 phba->cfg_nvme_io_channel = io_channel; 8296 if (phba->nvmet_support) { 8297 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 8298 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 8299 } 8300 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) 8301 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; 8302 8303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8304 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 8305 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 8306 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 8307 8308 /* Get EQ depth from module parameter, fake the default for now */ 8309 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8310 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8311 8312 /* Get CQ depth from module parameter, fake the default for now */ 8313 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8314 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8315 return 0; 8316 } 8317 8318 static int 8319 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 8320 { 8321 struct lpfc_queue *qdesc; 8322 8323 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8324 phba->sli4_hba.cq_esize, 8325 LPFC_CQE_EXP_COUNT); 8326 if (!qdesc) { 8327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8328 "0508 Failed allocate fast-path NVME CQ (%d)\n", 8329 wqidx); 8330 return 1; 8331 } 8332 qdesc->qe_valid = 1; 8333 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 8334 8335 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8336 LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT); 8337 if (!qdesc) { 8338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8339 "0509 Failed allocate fast-path NVME WQ (%d)\n", 8340 wqidx); 8341 return 1; 8342 } 8343 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 8344 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8345 return 0; 8346 } 8347 8348 static int 8349 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 8350 { 8351 struct lpfc_queue *qdesc; 8352 uint32_t wqesize; 8353 8354 /* Create Fast Path FCP CQs */ 8355 if (phba->enab_exp_wqcq_pages) 8356 /* Increase the CQ size when WQEs contain an embedded cdb */ 8357 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8358 phba->sli4_hba.cq_esize, 8359 LPFC_CQE_EXP_COUNT); 8360 8361 else 8362 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8363 phba->sli4_hba.cq_esize, 8364 phba->sli4_hba.cq_ecount); 8365 if (!qdesc) { 8366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8367 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 8368 return 1; 8369 } 8370 qdesc->qe_valid = 1; 8371 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 8372 8373 /* Create Fast Path FCP WQs */ 8374 if (phba->enab_exp_wqcq_pages) { 8375 /* Increase the WQ size when WQEs contain an embedded cdb */ 8376 wqesize = (phba->fcp_embed_io) ? 8377 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 8378 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, 8379 wqesize, 8380 LPFC_WQE_EXP_COUNT); 8381 } else 8382 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8383 phba->sli4_hba.wq_esize, 8384 phba->sli4_hba.wq_ecount); 8385 8386 if (!qdesc) { 8387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8388 "0503 Failed allocate fast-path FCP WQ (%d)\n", 8389 wqidx); 8390 return 1; 8391 } 8392 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 8393 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8394 return 0; 8395 } 8396 8397 /** 8398 * lpfc_sli4_queue_create - Create all the SLI4 queues 8399 * @phba: pointer to lpfc hba data structure. 8400 * 8401 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 8402 * operation. For each SLI4 queue type, the parameters such as queue entry 8403 * count (queue depth) shall be taken from the module parameter. For now, 8404 * we just use some constant number as place holder. 8405 * 8406 * Return codes 8407 * 0 - successful 8408 * -ENOMEM - No availble memory 8409 * -EIO - The mailbox failed to complete successfully. 8410 **/ 8411 int 8412 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8413 { 8414 struct lpfc_queue *qdesc; 8415 int idx, io_channel; 8416 8417 /* 8418 * Create HBA Record arrays. 8419 * Both NVME and FCP will share that same vectors / EQs 8420 */ 8421 io_channel = phba->io_channel_irqs; 8422 if (!io_channel) 8423 return -ERANGE; 8424 8425 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8426 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8427 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8428 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8429 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8430 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8431 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8432 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8433 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8434 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8435 8436 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8437 sizeof(struct lpfc_queue *), 8438 GFP_KERNEL); 8439 if (!phba->sli4_hba.hba_eq) { 8440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8441 "2576 Failed allocate memory for " 8442 "fast-path EQ record array\n"); 8443 goto out_error; 8444 } 8445 8446 if (phba->cfg_fcp_io_channel) { 8447 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8448 sizeof(struct lpfc_queue *), 8449 GFP_KERNEL); 8450 if (!phba->sli4_hba.fcp_cq) { 8451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8452 "2577 Failed allocate memory for " 8453 "fast-path CQ record array\n"); 8454 goto out_error; 8455 } 8456 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8457 sizeof(struct lpfc_queue *), 8458 GFP_KERNEL); 8459 if (!phba->sli4_hba.fcp_wq) { 8460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8461 "2578 Failed allocate memory for " 8462 "fast-path FCP WQ record array\n"); 8463 goto out_error; 8464 } 8465 /* 8466 * Since the first EQ can have multiple CQs associated with it, 8467 * this array is used to quickly see if we have a FCP fast-path 8468 * CQ match. 8469 */ 8470 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8471 sizeof(uint16_t), 8472 GFP_KERNEL); 8473 if (!phba->sli4_hba.fcp_cq_map) { 8474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8475 "2545 Failed allocate memory for " 8476 "fast-path CQ map\n"); 8477 goto out_error; 8478 } 8479 } 8480 8481 if (phba->cfg_nvme_io_channel) { 8482 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8483 sizeof(struct lpfc_queue *), 8484 GFP_KERNEL); 8485 if (!phba->sli4_hba.nvme_cq) { 8486 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8487 "6077 Failed allocate memory for " 8488 "fast-path CQ record array\n"); 8489 goto out_error; 8490 } 8491 8492 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8493 sizeof(struct lpfc_queue *), 8494 GFP_KERNEL); 8495 if (!phba->sli4_hba.nvme_wq) { 8496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8497 "2581 Failed allocate memory for " 8498 "fast-path NVME WQ record array\n"); 8499 goto out_error; 8500 } 8501 8502 /* 8503 * Since the first EQ can have multiple CQs associated with it, 8504 * this array is used to quickly see if we have a NVME fast-path 8505 * CQ match. 8506 */ 8507 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8508 sizeof(uint16_t), 8509 GFP_KERNEL); 8510 if (!phba->sli4_hba.nvme_cq_map) { 8511 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8512 "6078 Failed allocate memory for " 8513 "fast-path CQ map\n"); 8514 goto out_error; 8515 } 8516 8517 if (phba->nvmet_support) { 8518 phba->sli4_hba.nvmet_cqset = kcalloc( 8519 phba->cfg_nvmet_mrq, 8520 sizeof(struct lpfc_queue *), 8521 GFP_KERNEL); 8522 if (!phba->sli4_hba.nvmet_cqset) { 8523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8524 "3121 Fail allocate memory for " 8525 "fast-path CQ set array\n"); 8526 goto out_error; 8527 } 8528 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8529 phba->cfg_nvmet_mrq, 8530 sizeof(struct lpfc_queue *), 8531 GFP_KERNEL); 8532 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8534 "3122 Fail allocate memory for " 8535 "fast-path RQ set hdr array\n"); 8536 goto out_error; 8537 } 8538 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8539 phba->cfg_nvmet_mrq, 8540 sizeof(struct lpfc_queue *), 8541 GFP_KERNEL); 8542 if (!phba->sli4_hba.nvmet_mrq_data) { 8543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8544 "3124 Fail allocate memory for " 8545 "fast-path RQ set data array\n"); 8546 goto out_error; 8547 } 8548 } 8549 } 8550 8551 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8552 8553 /* Create HBA Event Queues (EQs) */ 8554 for (idx = 0; idx < io_channel; idx++) { 8555 /* Create EQs */ 8556 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8557 phba->sli4_hba.eq_esize, 8558 phba->sli4_hba.eq_ecount); 8559 if (!qdesc) { 8560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8561 "0497 Failed allocate EQ (%d)\n", idx); 8562 goto out_error; 8563 } 8564 qdesc->qe_valid = 1; 8565 phba->sli4_hba.hba_eq[idx] = qdesc; 8566 } 8567 8568 /* FCP and NVME io channels are not required to be balanced */ 8569 8570 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8571 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8572 goto out_error; 8573 8574 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8575 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8576 goto out_error; 8577 8578 if (phba->nvmet_support) { 8579 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8580 qdesc = lpfc_sli4_queue_alloc(phba, 8581 LPFC_DEFAULT_PAGE_SIZE, 8582 phba->sli4_hba.cq_esize, 8583 phba->sli4_hba.cq_ecount); 8584 if (!qdesc) { 8585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8586 "3142 Failed allocate NVME " 8587 "CQ Set (%d)\n", idx); 8588 goto out_error; 8589 } 8590 qdesc->qe_valid = 1; 8591 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8592 } 8593 } 8594 8595 /* 8596 * Create Slow Path Completion Queues (CQs) 8597 */ 8598 8599 /* Create slow-path Mailbox Command Complete Queue */ 8600 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8601 phba->sli4_hba.cq_esize, 8602 phba->sli4_hba.cq_ecount); 8603 if (!qdesc) { 8604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8605 "0500 Failed allocate slow-path mailbox CQ\n"); 8606 goto out_error; 8607 } 8608 qdesc->qe_valid = 1; 8609 phba->sli4_hba.mbx_cq = qdesc; 8610 8611 /* Create slow-path ELS Complete Queue */ 8612 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8613 phba->sli4_hba.cq_esize, 8614 phba->sli4_hba.cq_ecount); 8615 if (!qdesc) { 8616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8617 "0501 Failed allocate slow-path ELS CQ\n"); 8618 goto out_error; 8619 } 8620 qdesc->qe_valid = 1; 8621 phba->sli4_hba.els_cq = qdesc; 8622 8623 8624 /* 8625 * Create Slow Path Work Queues (WQs) 8626 */ 8627 8628 /* Create Mailbox Command Queue */ 8629 8630 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8631 phba->sli4_hba.mq_esize, 8632 phba->sli4_hba.mq_ecount); 8633 if (!qdesc) { 8634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8635 "0505 Failed allocate slow-path MQ\n"); 8636 goto out_error; 8637 } 8638 phba->sli4_hba.mbx_wq = qdesc; 8639 8640 /* 8641 * Create ELS Work Queues 8642 */ 8643 8644 /* Create slow-path ELS Work Queue */ 8645 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8646 phba->sli4_hba.wq_esize, 8647 phba->sli4_hba.wq_ecount); 8648 if (!qdesc) { 8649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8650 "0504 Failed allocate slow-path ELS WQ\n"); 8651 goto out_error; 8652 } 8653 phba->sli4_hba.els_wq = qdesc; 8654 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8655 8656 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8657 /* Create NVME LS Complete Queue */ 8658 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8659 phba->sli4_hba.cq_esize, 8660 phba->sli4_hba.cq_ecount); 8661 if (!qdesc) { 8662 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8663 "6079 Failed allocate NVME LS CQ\n"); 8664 goto out_error; 8665 } 8666 qdesc->qe_valid = 1; 8667 phba->sli4_hba.nvmels_cq = qdesc; 8668 8669 /* Create NVME LS Work Queue */ 8670 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8671 phba->sli4_hba.wq_esize, 8672 phba->sli4_hba.wq_ecount); 8673 if (!qdesc) { 8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8675 "6080 Failed allocate NVME LS WQ\n"); 8676 goto out_error; 8677 } 8678 phba->sli4_hba.nvmels_wq = qdesc; 8679 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8680 } 8681 8682 /* 8683 * Create Receive Queue (RQ) 8684 */ 8685 8686 /* Create Receive Queue for header */ 8687 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8688 phba->sli4_hba.rq_esize, 8689 phba->sli4_hba.rq_ecount); 8690 if (!qdesc) { 8691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8692 "0506 Failed allocate receive HRQ\n"); 8693 goto out_error; 8694 } 8695 phba->sli4_hba.hdr_rq = qdesc; 8696 8697 /* Create Receive Queue for data */ 8698 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 8699 phba->sli4_hba.rq_esize, 8700 phba->sli4_hba.rq_ecount); 8701 if (!qdesc) { 8702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8703 "0507 Failed allocate receive DRQ\n"); 8704 goto out_error; 8705 } 8706 phba->sli4_hba.dat_rq = qdesc; 8707 8708 if (phba->nvmet_support) { 8709 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8710 /* Create NVMET Receive Queue for header */ 8711 qdesc = lpfc_sli4_queue_alloc(phba, 8712 LPFC_DEFAULT_PAGE_SIZE, 8713 phba->sli4_hba.rq_esize, 8714 LPFC_NVMET_RQE_DEF_COUNT); 8715 if (!qdesc) { 8716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8717 "3146 Failed allocate " 8718 "receive HRQ\n"); 8719 goto out_error; 8720 } 8721 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8722 8723 /* Only needed for header of RQ pair */ 8724 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8725 GFP_KERNEL); 8726 if (qdesc->rqbp == NULL) { 8727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8728 "6131 Failed allocate " 8729 "Header RQBP\n"); 8730 goto out_error; 8731 } 8732 8733 /* Put list in known state in case driver load fails. */ 8734 INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); 8735 8736 /* Create NVMET Receive Queue for data */ 8737 qdesc = lpfc_sli4_queue_alloc(phba, 8738 LPFC_DEFAULT_PAGE_SIZE, 8739 phba->sli4_hba.rq_esize, 8740 LPFC_NVMET_RQE_DEF_COUNT); 8741 if (!qdesc) { 8742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8743 "3156 Failed allocate " 8744 "receive DRQ\n"); 8745 goto out_error; 8746 } 8747 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8748 } 8749 } 8750 8751 /* Create the Queues needed for Flash Optimized Fabric operations */ 8752 if (phba->cfg_fof) 8753 lpfc_fof_queue_create(phba); 8754 return 0; 8755 8756 out_error: 8757 lpfc_sli4_queue_destroy(phba); 8758 return -ENOMEM; 8759 } 8760 8761 static inline void 8762 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8763 { 8764 if (*qp != NULL) { 8765 lpfc_sli4_queue_free(*qp); 8766 *qp = NULL; 8767 } 8768 } 8769 8770 static inline void 8771 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8772 { 8773 int idx; 8774 8775 if (*qs == NULL) 8776 return; 8777 8778 for (idx = 0; idx < max; idx++) 8779 __lpfc_sli4_release_queue(&(*qs)[idx]); 8780 8781 kfree(*qs); 8782 *qs = NULL; 8783 } 8784 8785 static inline void 8786 lpfc_sli4_release_queue_map(uint16_t **qmap) 8787 { 8788 if (*qmap != NULL) { 8789 kfree(*qmap); 8790 *qmap = NULL; 8791 } 8792 } 8793 8794 /** 8795 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8796 * @phba: pointer to lpfc hba data structure. 8797 * 8798 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8799 * operation. 8800 * 8801 * Return codes 8802 * 0 - successful 8803 * -ENOMEM - No available memory 8804 * -EIO - The mailbox failed to complete successfully. 8805 **/ 8806 void 8807 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8808 { 8809 if (phba->cfg_fof) 8810 lpfc_fof_queue_destroy(phba); 8811 8812 /* Release HBA eqs */ 8813 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8814 8815 /* Release FCP cqs */ 8816 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8817 phba->cfg_fcp_io_channel); 8818 8819 /* Release FCP wqs */ 8820 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8821 phba->cfg_fcp_io_channel); 8822 8823 /* Release FCP CQ mapping array */ 8824 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8825 8826 /* Release NVME cqs */ 8827 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8828 phba->cfg_nvme_io_channel); 8829 8830 /* Release NVME wqs */ 8831 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8832 phba->cfg_nvme_io_channel); 8833 8834 /* Release NVME CQ mapping array */ 8835 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8836 8837 if (phba->nvmet_support) { 8838 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8839 phba->cfg_nvmet_mrq); 8840 8841 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8842 phba->cfg_nvmet_mrq); 8843 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8844 phba->cfg_nvmet_mrq); 8845 } 8846 8847 /* Release mailbox command work queue */ 8848 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8849 8850 /* Release ELS work queue */ 8851 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8852 8853 /* Release ELS work queue */ 8854 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8855 8856 /* Release unsolicited receive queue */ 8857 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8858 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8859 8860 /* Release ELS complete queue */ 8861 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8862 8863 /* Release NVME LS complete queue */ 8864 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8865 8866 /* Release mailbox command complete queue */ 8867 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8868 8869 /* Everything on this list has been freed */ 8870 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8871 } 8872 8873 int 8874 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8875 { 8876 struct lpfc_rqb *rqbp; 8877 struct lpfc_dmabuf *h_buf; 8878 struct rqb_dmabuf *rqb_buffer; 8879 8880 rqbp = rq->rqbp; 8881 while (!list_empty(&rqbp->rqb_buffer_list)) { 8882 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8883 struct lpfc_dmabuf, list); 8884 8885 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8886 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8887 rqbp->buffer_count--; 8888 } 8889 return 1; 8890 } 8891 8892 static int 8893 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8894 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8895 int qidx, uint32_t qtype) 8896 { 8897 struct lpfc_sli_ring *pring; 8898 int rc; 8899 8900 if (!eq || !cq || !wq) { 8901 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8902 "6085 Fast-path %s (%d) not allocated\n", 8903 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8904 return -ENOMEM; 8905 } 8906 8907 /* create the Cq first */ 8908 rc = lpfc_cq_create(phba, cq, eq, 8909 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8910 if (rc) { 8911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8912 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8913 qidx, (uint32_t)rc); 8914 return rc; 8915 } 8916 cq->chann = qidx; 8917 8918 if (qtype != LPFC_MBOX) { 8919 /* Setup nvme_cq_map for fast lookup */ 8920 if (cq_map) 8921 *cq_map = cq->queue_id; 8922 8923 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8924 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8925 qidx, cq->queue_id, qidx, eq->queue_id); 8926 8927 /* create the wq */ 8928 rc = lpfc_wq_create(phba, wq, cq, qtype); 8929 if (rc) { 8930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8931 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8932 qidx, (uint32_t)rc); 8933 /* no need to tear down cq - caller will do so */ 8934 return rc; 8935 } 8936 wq->chann = qidx; 8937 8938 /* Bind this CQ/WQ to the NVME ring */ 8939 pring = wq->pring; 8940 pring->sli.sli4.wqp = (void *)wq; 8941 cq->pring = pring; 8942 8943 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8944 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8945 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8946 } else { 8947 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8948 if (rc) { 8949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8950 "0539 Failed setup of slow-path MQ: " 8951 "rc = 0x%x\n", rc); 8952 /* no need to tear down cq - caller will do so */ 8953 return rc; 8954 } 8955 8956 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8957 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8958 phba->sli4_hba.mbx_wq->queue_id, 8959 phba->sli4_hba.mbx_cq->queue_id); 8960 } 8961 8962 return 0; 8963 } 8964 8965 /** 8966 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8967 * @phba: pointer to lpfc hba data structure. 8968 * 8969 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8970 * operation. 8971 * 8972 * Return codes 8973 * 0 - successful 8974 * -ENOMEM - No available memory 8975 * -EIO - The mailbox failed to complete successfully. 8976 **/ 8977 int 8978 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8979 { 8980 uint32_t shdr_status, shdr_add_status; 8981 union lpfc_sli4_cfg_shdr *shdr; 8982 LPFC_MBOXQ_t *mboxq; 8983 int qidx; 8984 uint32_t length, io_channel; 8985 int rc = -ENOMEM; 8986 8987 /* Check for dual-ULP support */ 8988 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8989 if (!mboxq) { 8990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8991 "3249 Unable to allocate memory for " 8992 "QUERY_FW_CFG mailbox command\n"); 8993 return -ENOMEM; 8994 } 8995 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8996 sizeof(struct lpfc_sli4_cfg_mhdr)); 8997 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8998 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8999 length, LPFC_SLI4_MBX_EMBED); 9000 9001 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9002 9003 shdr = (union lpfc_sli4_cfg_shdr *) 9004 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9005 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9006 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 9007 if (shdr_status || shdr_add_status || rc) { 9008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9009 "3250 QUERY_FW_CFG mailbox failed with status " 9010 "x%x add_status x%x, mbx status x%x\n", 9011 shdr_status, shdr_add_status, rc); 9012 if (rc != MBX_TIMEOUT) 9013 mempool_free(mboxq, phba->mbox_mem_pool); 9014 rc = -ENXIO; 9015 goto out_error; 9016 } 9017 9018 phba->sli4_hba.fw_func_mode = 9019 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 9020 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 9021 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 9022 phba->sli4_hba.physical_port = 9023 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 9024 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9025 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 9026 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 9027 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 9028 9029 if (rc != MBX_TIMEOUT) 9030 mempool_free(mboxq, phba->mbox_mem_pool); 9031 9032 /* 9033 * Set up HBA Event Queues (EQs) 9034 */ 9035 io_channel = phba->io_channel_irqs; 9036 9037 /* Set up HBA event queue */ 9038 if (io_channel && !phba->sli4_hba.hba_eq) { 9039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9040 "3147 Fast-path EQs not allocated\n"); 9041 rc = -ENOMEM; 9042 goto out_error; 9043 } 9044 for (qidx = 0; qidx < io_channel; qidx++) { 9045 if (!phba->sli4_hba.hba_eq[qidx]) { 9046 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9047 "0522 Fast-path EQ (%d) not " 9048 "allocated\n", qidx); 9049 rc = -ENOMEM; 9050 goto out_destroy; 9051 } 9052 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 9053 phba->cfg_fcp_imax); 9054 if (rc) { 9055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9056 "0523 Failed setup of fast-path EQ " 9057 "(%d), rc = 0x%x\n", qidx, 9058 (uint32_t)rc); 9059 goto out_destroy; 9060 } 9061 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9062 "2584 HBA EQ setup: queue[%d]-id=%d\n", 9063 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 9064 } 9065 9066 if (phba->cfg_nvme_io_channel) { 9067 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 9068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9069 "6084 Fast-path NVME %s array not allocated\n", 9070 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 9071 rc = -ENOMEM; 9072 goto out_destroy; 9073 } 9074 9075 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 9076 rc = lpfc_create_wq_cq(phba, 9077 phba->sli4_hba.hba_eq[ 9078 qidx % io_channel], 9079 phba->sli4_hba.nvme_cq[qidx], 9080 phba->sli4_hba.nvme_wq[qidx], 9081 &phba->sli4_hba.nvme_cq_map[qidx], 9082 qidx, LPFC_NVME); 9083 if (rc) { 9084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9085 "6123 Failed to setup fastpath " 9086 "NVME WQ/CQ (%d), rc = 0x%x\n", 9087 qidx, (uint32_t)rc); 9088 goto out_destroy; 9089 } 9090 } 9091 } 9092 9093 if (phba->cfg_fcp_io_channel) { 9094 /* Set up fast-path FCP Response Complete Queue */ 9095 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 9096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9097 "3148 Fast-path FCP %s array not allocated\n", 9098 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 9099 rc = -ENOMEM; 9100 goto out_destroy; 9101 } 9102 9103 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 9104 rc = lpfc_create_wq_cq(phba, 9105 phba->sli4_hba.hba_eq[ 9106 qidx % io_channel], 9107 phba->sli4_hba.fcp_cq[qidx], 9108 phba->sli4_hba.fcp_wq[qidx], 9109 &phba->sli4_hba.fcp_cq_map[qidx], 9110 qidx, LPFC_FCP); 9111 if (rc) { 9112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9113 "0535 Failed to setup fastpath " 9114 "FCP WQ/CQ (%d), rc = 0x%x\n", 9115 qidx, (uint32_t)rc); 9116 goto out_destroy; 9117 } 9118 } 9119 } 9120 9121 /* 9122 * Set up Slow Path Complete Queues (CQs) 9123 */ 9124 9125 /* Set up slow-path MBOX CQ/MQ */ 9126 9127 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 9128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9129 "0528 %s not allocated\n", 9130 phba->sli4_hba.mbx_cq ? 9131 "Mailbox WQ" : "Mailbox CQ"); 9132 rc = -ENOMEM; 9133 goto out_destroy; 9134 } 9135 9136 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 9137 phba->sli4_hba.mbx_cq, 9138 phba->sli4_hba.mbx_wq, 9139 NULL, 0, LPFC_MBOX); 9140 if (rc) { 9141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9142 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 9143 (uint32_t)rc); 9144 goto out_destroy; 9145 } 9146 if (phba->nvmet_support) { 9147 if (!phba->sli4_hba.nvmet_cqset) { 9148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9149 "3165 Fast-path NVME CQ Set " 9150 "array not allocated\n"); 9151 rc = -ENOMEM; 9152 goto out_destroy; 9153 } 9154 if (phba->cfg_nvmet_mrq > 1) { 9155 rc = lpfc_cq_create_set(phba, 9156 phba->sli4_hba.nvmet_cqset, 9157 phba->sli4_hba.hba_eq, 9158 LPFC_WCQ, LPFC_NVMET); 9159 if (rc) { 9160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9161 "3164 Failed setup of NVME CQ " 9162 "Set, rc = 0x%x\n", 9163 (uint32_t)rc); 9164 goto out_destroy; 9165 } 9166 } else { 9167 /* Set up NVMET Receive Complete Queue */ 9168 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 9169 phba->sli4_hba.hba_eq[0], 9170 LPFC_WCQ, LPFC_NVMET); 9171 if (rc) { 9172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9173 "6089 Failed setup NVMET CQ: " 9174 "rc = 0x%x\n", (uint32_t)rc); 9175 goto out_destroy; 9176 } 9177 phba->sli4_hba.nvmet_cqset[0]->chann = 0; 9178 9179 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9180 "6090 NVMET CQ setup: cq-id=%d, " 9181 "parent eq-id=%d\n", 9182 phba->sli4_hba.nvmet_cqset[0]->queue_id, 9183 phba->sli4_hba.hba_eq[0]->queue_id); 9184 } 9185 } 9186 9187 /* Set up slow-path ELS WQ/CQ */ 9188 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 9189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9190 "0530 ELS %s not allocated\n", 9191 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 9192 rc = -ENOMEM; 9193 goto out_destroy; 9194 } 9195 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 9196 phba->sli4_hba.els_cq, 9197 phba->sli4_hba.els_wq, 9198 NULL, 0, LPFC_ELS); 9199 if (rc) { 9200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9201 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 9202 (uint32_t)rc); 9203 goto out_destroy; 9204 } 9205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9206 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 9207 phba->sli4_hba.els_wq->queue_id, 9208 phba->sli4_hba.els_cq->queue_id); 9209 9210 if (phba->cfg_nvme_io_channel) { 9211 /* Set up NVME LS Complete Queue */ 9212 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 9213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9214 "6091 LS %s not allocated\n", 9215 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 9216 rc = -ENOMEM; 9217 goto out_destroy; 9218 } 9219 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 9220 phba->sli4_hba.nvmels_cq, 9221 phba->sli4_hba.nvmels_wq, 9222 NULL, 0, LPFC_NVME_LS); 9223 if (rc) { 9224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9225 "0529 Failed setup of NVVME LS WQ/CQ: " 9226 "rc = 0x%x\n", (uint32_t)rc); 9227 goto out_destroy; 9228 } 9229 9230 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9231 "6096 ELS WQ setup: wq-id=%d, " 9232 "parent cq-id=%d\n", 9233 phba->sli4_hba.nvmels_wq->queue_id, 9234 phba->sli4_hba.nvmels_cq->queue_id); 9235 } 9236 9237 /* 9238 * Create NVMET Receive Queue (RQ) 9239 */ 9240 if (phba->nvmet_support) { 9241 if ((!phba->sli4_hba.nvmet_cqset) || 9242 (!phba->sli4_hba.nvmet_mrq_hdr) || 9243 (!phba->sli4_hba.nvmet_mrq_data)) { 9244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9245 "6130 MRQ CQ Queues not " 9246 "allocated\n"); 9247 rc = -ENOMEM; 9248 goto out_destroy; 9249 } 9250 if (phba->cfg_nvmet_mrq > 1) { 9251 rc = lpfc_mrq_create(phba, 9252 phba->sli4_hba.nvmet_mrq_hdr, 9253 phba->sli4_hba.nvmet_mrq_data, 9254 phba->sli4_hba.nvmet_cqset, 9255 LPFC_NVMET); 9256 if (rc) { 9257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9258 "6098 Failed setup of NVMET " 9259 "MRQ: rc = 0x%x\n", 9260 (uint32_t)rc); 9261 goto out_destroy; 9262 } 9263 9264 } else { 9265 rc = lpfc_rq_create(phba, 9266 phba->sli4_hba.nvmet_mrq_hdr[0], 9267 phba->sli4_hba.nvmet_mrq_data[0], 9268 phba->sli4_hba.nvmet_cqset[0], 9269 LPFC_NVMET); 9270 if (rc) { 9271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9272 "6057 Failed setup of NVMET " 9273 "Receive Queue: rc = 0x%x\n", 9274 (uint32_t)rc); 9275 goto out_destroy; 9276 } 9277 9278 lpfc_printf_log( 9279 phba, KERN_INFO, LOG_INIT, 9280 "6099 NVMET RQ setup: hdr-rq-id=%d, " 9281 "dat-rq-id=%d parent cq-id=%d\n", 9282 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 9283 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 9284 phba->sli4_hba.nvmet_cqset[0]->queue_id); 9285 9286 } 9287 } 9288 9289 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 9290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9291 "0540 Receive Queue not allocated\n"); 9292 rc = -ENOMEM; 9293 goto out_destroy; 9294 } 9295 9296 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 9297 phba->sli4_hba.els_cq, LPFC_USOL); 9298 if (rc) { 9299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9300 "0541 Failed setup of Receive Queue: " 9301 "rc = 0x%x\n", (uint32_t)rc); 9302 goto out_destroy; 9303 } 9304 9305 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9306 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 9307 "parent cq-id=%d\n", 9308 phba->sli4_hba.hdr_rq->queue_id, 9309 phba->sli4_hba.dat_rq->queue_id, 9310 phba->sli4_hba.els_cq->queue_id); 9311 9312 if (phba->cfg_fof) { 9313 rc = lpfc_fof_queue_setup(phba); 9314 if (rc) { 9315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9316 "0549 Failed setup of FOF Queues: " 9317 "rc = 0x%x\n", rc); 9318 goto out_destroy; 9319 } 9320 } 9321 9322 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 9323 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 9324 phba->cfg_fcp_imax); 9325 9326 return 0; 9327 9328 out_destroy: 9329 lpfc_sli4_queue_unset(phba); 9330 out_error: 9331 return rc; 9332 } 9333 9334 /** 9335 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 9336 * @phba: pointer to lpfc hba data structure. 9337 * 9338 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 9339 * operation. 9340 * 9341 * Return codes 9342 * 0 - successful 9343 * -ENOMEM - No available memory 9344 * -EIO - The mailbox failed to complete successfully. 9345 **/ 9346 void 9347 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 9348 { 9349 int qidx; 9350 9351 /* Unset the queues created for Flash Optimized Fabric operations */ 9352 if (phba->cfg_fof) 9353 lpfc_fof_queue_destroy(phba); 9354 9355 /* Unset mailbox command work queue */ 9356 if (phba->sli4_hba.mbx_wq) 9357 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 9358 9359 /* Unset NVME LS work queue */ 9360 if (phba->sli4_hba.nvmels_wq) 9361 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 9362 9363 /* Unset ELS work queue */ 9364 if (phba->sli4_hba.els_wq) 9365 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 9366 9367 /* Unset unsolicited receive queue */ 9368 if (phba->sli4_hba.hdr_rq) 9369 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 9370 phba->sli4_hba.dat_rq); 9371 9372 /* Unset FCP work queue */ 9373 if (phba->sli4_hba.fcp_wq) 9374 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9375 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 9376 9377 /* Unset NVME work queue */ 9378 if (phba->sli4_hba.nvme_wq) { 9379 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 9380 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 9381 } 9382 9383 /* Unset mailbox command complete queue */ 9384 if (phba->sli4_hba.mbx_cq) 9385 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 9386 9387 /* Unset ELS complete queue */ 9388 if (phba->sli4_hba.els_cq) 9389 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 9390 9391 /* Unset NVME LS complete queue */ 9392 if (phba->sli4_hba.nvmels_cq) 9393 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 9394 9395 /* Unset NVME response complete queue */ 9396 if (phba->sli4_hba.nvme_cq) 9397 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 9398 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 9399 9400 if (phba->nvmet_support) { 9401 /* Unset NVMET MRQ queue */ 9402 if (phba->sli4_hba.nvmet_mrq_hdr) { 9403 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9404 lpfc_rq_destroy( 9405 phba, 9406 phba->sli4_hba.nvmet_mrq_hdr[qidx], 9407 phba->sli4_hba.nvmet_mrq_data[qidx]); 9408 } 9409 9410 /* Unset NVMET CQ Set complete queue */ 9411 if (phba->sli4_hba.nvmet_cqset) { 9412 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 9413 lpfc_cq_destroy( 9414 phba, phba->sli4_hba.nvmet_cqset[qidx]); 9415 } 9416 } 9417 9418 /* Unset FCP response complete queue */ 9419 if (phba->sli4_hba.fcp_cq) 9420 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 9421 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 9422 9423 /* Unset fast-path event queue */ 9424 if (phba->sli4_hba.hba_eq) 9425 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 9426 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 9427 } 9428 9429 /** 9430 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 9431 * @phba: pointer to lpfc hba data structure. 9432 * 9433 * This routine is invoked to allocate and set up a pool of completion queue 9434 * events. The body of the completion queue event is a completion queue entry 9435 * CQE. For now, this pool is used for the interrupt service routine to queue 9436 * the following HBA completion queue events for the worker thread to process: 9437 * - Mailbox asynchronous events 9438 * - Receive queue completion unsolicited events 9439 * Later, this can be used for all the slow-path events. 9440 * 9441 * Return codes 9442 * 0 - successful 9443 * -ENOMEM - No available memory 9444 **/ 9445 static int 9446 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9447 { 9448 struct lpfc_cq_event *cq_event; 9449 int i; 9450 9451 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9452 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9453 if (!cq_event) 9454 goto out_pool_create_fail; 9455 list_add_tail(&cq_event->list, 9456 &phba->sli4_hba.sp_cqe_event_pool); 9457 } 9458 return 0; 9459 9460 out_pool_create_fail: 9461 lpfc_sli4_cq_event_pool_destroy(phba); 9462 return -ENOMEM; 9463 } 9464 9465 /** 9466 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9467 * @phba: pointer to lpfc hba data structure. 9468 * 9469 * This routine is invoked to free the pool of completion queue events at 9470 * driver unload time. Note that, it is the responsibility of the driver 9471 * cleanup routine to free all the outstanding completion-queue events 9472 * allocated from this pool back into the pool before invoking this routine 9473 * to destroy the pool. 9474 **/ 9475 static void 9476 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9477 { 9478 struct lpfc_cq_event *cq_event, *next_cq_event; 9479 9480 list_for_each_entry_safe(cq_event, next_cq_event, 9481 &phba->sli4_hba.sp_cqe_event_pool, list) { 9482 list_del(&cq_event->list); 9483 kfree(cq_event); 9484 } 9485 } 9486 9487 /** 9488 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9489 * @phba: pointer to lpfc hba data structure. 9490 * 9491 * This routine is the lock free version of the API invoked to allocate a 9492 * completion-queue event from the free pool. 9493 * 9494 * Return: Pointer to the newly allocated completion-queue event if successful 9495 * NULL otherwise. 9496 **/ 9497 struct lpfc_cq_event * 9498 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9499 { 9500 struct lpfc_cq_event *cq_event = NULL; 9501 9502 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9503 struct lpfc_cq_event, list); 9504 return cq_event; 9505 } 9506 9507 /** 9508 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9509 * @phba: pointer to lpfc hba data structure. 9510 * 9511 * This routine is the lock version of the API invoked to allocate a 9512 * completion-queue event from the free pool. 9513 * 9514 * Return: Pointer to the newly allocated completion-queue event if successful 9515 * NULL otherwise. 9516 **/ 9517 struct lpfc_cq_event * 9518 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9519 { 9520 struct lpfc_cq_event *cq_event; 9521 unsigned long iflags; 9522 9523 spin_lock_irqsave(&phba->hbalock, iflags); 9524 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9525 spin_unlock_irqrestore(&phba->hbalock, iflags); 9526 return cq_event; 9527 } 9528 9529 /** 9530 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9531 * @phba: pointer to lpfc hba data structure. 9532 * @cq_event: pointer to the completion queue event to be freed. 9533 * 9534 * This routine is the lock free version of the API invoked to release a 9535 * completion-queue event back into the free pool. 9536 **/ 9537 void 9538 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9539 struct lpfc_cq_event *cq_event) 9540 { 9541 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9542 } 9543 9544 /** 9545 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9546 * @phba: pointer to lpfc hba data structure. 9547 * @cq_event: pointer to the completion queue event to be freed. 9548 * 9549 * This routine is the lock version of the API invoked to release a 9550 * completion-queue event back into the free pool. 9551 **/ 9552 void 9553 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9554 struct lpfc_cq_event *cq_event) 9555 { 9556 unsigned long iflags; 9557 spin_lock_irqsave(&phba->hbalock, iflags); 9558 __lpfc_sli4_cq_event_release(phba, cq_event); 9559 spin_unlock_irqrestore(&phba->hbalock, iflags); 9560 } 9561 9562 /** 9563 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9564 * @phba: pointer to lpfc hba data structure. 9565 * 9566 * This routine is to free all the pending completion-queue events to the 9567 * back into the free pool for device reset. 9568 **/ 9569 static void 9570 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9571 { 9572 LIST_HEAD(cqelist); 9573 struct lpfc_cq_event *cqe; 9574 unsigned long iflags; 9575 9576 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9577 spin_lock_irqsave(&phba->hbalock, iflags); 9578 /* Pending FCP XRI abort events */ 9579 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9580 &cqelist); 9581 /* Pending ELS XRI abort events */ 9582 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9583 &cqelist); 9584 /* Pending asynnc events */ 9585 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9586 &cqelist); 9587 spin_unlock_irqrestore(&phba->hbalock, iflags); 9588 9589 while (!list_empty(&cqelist)) { 9590 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9591 lpfc_sli4_cq_event_release(phba, cqe); 9592 } 9593 } 9594 9595 /** 9596 * lpfc_pci_function_reset - Reset pci function. 9597 * @phba: pointer to lpfc hba data structure. 9598 * 9599 * This routine is invoked to request a PCI function reset. It will destroys 9600 * all resources assigned to the PCI function which originates this request. 9601 * 9602 * Return codes 9603 * 0 - successful 9604 * -ENOMEM - No available memory 9605 * -EIO - The mailbox failed to complete successfully. 9606 **/ 9607 int 9608 lpfc_pci_function_reset(struct lpfc_hba *phba) 9609 { 9610 LPFC_MBOXQ_t *mboxq; 9611 uint32_t rc = 0, if_type; 9612 uint32_t shdr_status, shdr_add_status; 9613 uint32_t rdy_chk; 9614 uint32_t port_reset = 0; 9615 union lpfc_sli4_cfg_shdr *shdr; 9616 struct lpfc_register reg_data; 9617 uint16_t devid; 9618 9619 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9620 switch (if_type) { 9621 case LPFC_SLI_INTF_IF_TYPE_0: 9622 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9623 GFP_KERNEL); 9624 if (!mboxq) { 9625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9626 "0494 Unable to allocate memory for " 9627 "issuing SLI_FUNCTION_RESET mailbox " 9628 "command\n"); 9629 return -ENOMEM; 9630 } 9631 9632 /* Setup PCI function reset mailbox-ioctl command */ 9633 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9634 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9635 LPFC_SLI4_MBX_EMBED); 9636 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9637 shdr = (union lpfc_sli4_cfg_shdr *) 9638 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9639 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9640 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9641 &shdr->response); 9642 if (rc != MBX_TIMEOUT) 9643 mempool_free(mboxq, phba->mbox_mem_pool); 9644 if (shdr_status || shdr_add_status || rc) { 9645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9646 "0495 SLI_FUNCTION_RESET mailbox " 9647 "failed with status x%x add_status x%x," 9648 " mbx status x%x\n", 9649 shdr_status, shdr_add_status, rc); 9650 rc = -ENXIO; 9651 } 9652 break; 9653 case LPFC_SLI_INTF_IF_TYPE_2: 9654 case LPFC_SLI_INTF_IF_TYPE_6: 9655 wait: 9656 /* 9657 * Poll the Port Status Register and wait for RDY for 9658 * up to 30 seconds. If the port doesn't respond, treat 9659 * it as an error. 9660 */ 9661 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9662 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9663 STATUSregaddr, ®_data.word0)) { 9664 rc = -ENODEV; 9665 goto out; 9666 } 9667 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9668 break; 9669 msleep(20); 9670 } 9671 9672 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9673 phba->work_status[0] = readl( 9674 phba->sli4_hba.u.if_type2.ERR1regaddr); 9675 phba->work_status[1] = readl( 9676 phba->sli4_hba.u.if_type2.ERR2regaddr); 9677 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9678 "2890 Port not ready, port status reg " 9679 "0x%x error 1=0x%x, error 2=0x%x\n", 9680 reg_data.word0, 9681 phba->work_status[0], 9682 phba->work_status[1]); 9683 rc = -ENODEV; 9684 goto out; 9685 } 9686 9687 if (!port_reset) { 9688 /* 9689 * Reset the port now 9690 */ 9691 reg_data.word0 = 0; 9692 bf_set(lpfc_sliport_ctrl_end, ®_data, 9693 LPFC_SLIPORT_LITTLE_ENDIAN); 9694 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9695 LPFC_SLIPORT_INIT_PORT); 9696 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9697 CTRLregaddr); 9698 /* flush */ 9699 pci_read_config_word(phba->pcidev, 9700 PCI_DEVICE_ID, &devid); 9701 9702 port_reset = 1; 9703 msleep(20); 9704 goto wait; 9705 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9706 rc = -ENODEV; 9707 goto out; 9708 } 9709 break; 9710 9711 case LPFC_SLI_INTF_IF_TYPE_1: 9712 default: 9713 break; 9714 } 9715 9716 out: 9717 /* Catch the not-ready port failure after a port reset. */ 9718 if (rc) { 9719 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9720 "3317 HBA not functional: IP Reset Failed " 9721 "try: echo fw_reset > board_mode\n"); 9722 rc = -ENODEV; 9723 } 9724 9725 return rc; 9726 } 9727 9728 /** 9729 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9730 * @phba: pointer to lpfc hba data structure. 9731 * 9732 * This routine is invoked to set up the PCI device memory space for device 9733 * with SLI-4 interface spec. 9734 * 9735 * Return codes 9736 * 0 - successful 9737 * other values - error 9738 **/ 9739 static int 9740 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9741 { 9742 struct pci_dev *pdev = phba->pcidev; 9743 unsigned long bar0map_len, bar1map_len, bar2map_len; 9744 int error = -ENODEV; 9745 uint32_t if_type; 9746 9747 if (!pdev) 9748 return -ENODEV; 9749 9750 /* Set the device DMA mask size */ 9751 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 9752 if (error) 9753 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 9754 if (error) 9755 return error; 9756 9757 /* 9758 * The BARs and register set definitions and offset locations are 9759 * dependent on the if_type. 9760 */ 9761 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9762 &phba->sli4_hba.sli_intf.word0)) { 9763 return error; 9764 } 9765 9766 /* There is no SLI3 failback for SLI4 devices. */ 9767 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9768 LPFC_SLI_INTF_VALID) { 9769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9770 "2894 SLI_INTF reg contents invalid " 9771 "sli_intf reg 0x%x\n", 9772 phba->sli4_hba.sli_intf.word0); 9773 return error; 9774 } 9775 9776 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9777 /* 9778 * Get the bus address of SLI4 device Bar regions and the 9779 * number of bytes required by each mapping. The mapping of the 9780 * particular PCI BARs regions is dependent on the type of 9781 * SLI4 device. 9782 */ 9783 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9784 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9785 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9786 9787 /* 9788 * Map SLI4 PCI Config Space Register base to a kernel virtual 9789 * addr 9790 */ 9791 phba->sli4_hba.conf_regs_memmap_p = 9792 ioremap(phba->pci_bar0_map, bar0map_len); 9793 if (!phba->sli4_hba.conf_regs_memmap_p) { 9794 dev_printk(KERN_ERR, &pdev->dev, 9795 "ioremap failed for SLI4 PCI config " 9796 "registers.\n"); 9797 goto out; 9798 } 9799 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9800 /* Set up BAR0 PCI config space register memory map */ 9801 lpfc_sli4_bar0_register_memmap(phba, if_type); 9802 } else { 9803 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9804 bar0map_len = pci_resource_len(pdev, 1); 9805 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { 9806 dev_printk(KERN_ERR, &pdev->dev, 9807 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9808 goto out; 9809 } 9810 phba->sli4_hba.conf_regs_memmap_p = 9811 ioremap(phba->pci_bar0_map, bar0map_len); 9812 if (!phba->sli4_hba.conf_regs_memmap_p) { 9813 dev_printk(KERN_ERR, &pdev->dev, 9814 "ioremap failed for SLI4 PCI config " 9815 "registers.\n"); 9816 goto out; 9817 } 9818 lpfc_sli4_bar0_register_memmap(phba, if_type); 9819 } 9820 9821 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 9822 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) { 9823 /* 9824 * Map SLI4 if type 0 HBA Control Register base to a 9825 * kernel virtual address and setup the registers. 9826 */ 9827 phba->pci_bar1_map = pci_resource_start(pdev, 9828 PCI_64BIT_BAR2); 9829 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9830 phba->sli4_hba.ctrl_regs_memmap_p = 9831 ioremap(phba->pci_bar1_map, 9832 bar1map_len); 9833 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9834 dev_err(&pdev->dev, 9835 "ioremap failed for SLI4 HBA " 9836 "control registers.\n"); 9837 error = -ENOMEM; 9838 goto out_iounmap_conf; 9839 } 9840 phba->pci_bar2_memmap_p = 9841 phba->sli4_hba.ctrl_regs_memmap_p; 9842 lpfc_sli4_bar1_register_memmap(phba, if_type); 9843 } else { 9844 error = -ENOMEM; 9845 goto out_iounmap_conf; 9846 } 9847 } 9848 9849 if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) && 9850 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9851 /* 9852 * Map SLI4 if type 6 HBA Doorbell Register base to a kernel 9853 * virtual address and setup the registers. 9854 */ 9855 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9856 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9857 phba->sli4_hba.drbl_regs_memmap_p = 9858 ioremap(phba->pci_bar1_map, bar1map_len); 9859 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9860 dev_err(&pdev->dev, 9861 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9862 goto out_iounmap_conf; 9863 } 9864 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9865 lpfc_sli4_bar1_register_memmap(phba, if_type); 9866 } 9867 9868 if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { 9869 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) { 9870 /* 9871 * Map SLI4 if type 0 HBA Doorbell Register base to 9872 * a kernel virtual address and setup the registers. 9873 */ 9874 phba->pci_bar2_map = pci_resource_start(pdev, 9875 PCI_64BIT_BAR4); 9876 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9877 phba->sli4_hba.drbl_regs_memmap_p = 9878 ioremap(phba->pci_bar2_map, 9879 bar2map_len); 9880 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9881 dev_err(&pdev->dev, 9882 "ioremap failed for SLI4 HBA" 9883 " doorbell registers.\n"); 9884 error = -ENOMEM; 9885 goto out_iounmap_ctrl; 9886 } 9887 phba->pci_bar4_memmap_p = 9888 phba->sli4_hba.drbl_regs_memmap_p; 9889 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9890 if (error) 9891 goto out_iounmap_all; 9892 } else { 9893 error = -ENOMEM; 9894 goto out_iounmap_all; 9895 } 9896 } 9897 9898 if (if_type == LPFC_SLI_INTF_IF_TYPE_6 && 9899 pci_resource_start(pdev, PCI_64BIT_BAR4)) { 9900 /* 9901 * Map SLI4 if type 6 HBA DPP Register base to a kernel 9902 * virtual address and setup the registers. 9903 */ 9904 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9905 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9906 phba->sli4_hba.dpp_regs_memmap_p = 9907 ioremap(phba->pci_bar2_map, bar2map_len); 9908 if (!phba->sli4_hba.dpp_regs_memmap_p) { 9909 dev_err(&pdev->dev, 9910 "ioremap failed for SLI4 HBA dpp registers.\n"); 9911 goto out_iounmap_ctrl; 9912 } 9913 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p; 9914 } 9915 9916 /* Set up the EQ/CQ register handeling functions now */ 9917 switch (if_type) { 9918 case LPFC_SLI_INTF_IF_TYPE_0: 9919 case LPFC_SLI_INTF_IF_TYPE_2: 9920 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr; 9921 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release; 9922 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release; 9923 break; 9924 case LPFC_SLI_INTF_IF_TYPE_6: 9925 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr; 9926 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release; 9927 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release; 9928 break; 9929 default: 9930 break; 9931 } 9932 9933 return 0; 9934 9935 out_iounmap_all: 9936 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9937 out_iounmap_ctrl: 9938 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9939 out_iounmap_conf: 9940 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9941 out: 9942 return error; 9943 } 9944 9945 /** 9946 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9947 * @phba: pointer to lpfc hba data structure. 9948 * 9949 * This routine is invoked to unset the PCI device memory space for device 9950 * with SLI-4 interface spec. 9951 **/ 9952 static void 9953 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9954 { 9955 uint32_t if_type; 9956 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9957 9958 switch (if_type) { 9959 case LPFC_SLI_INTF_IF_TYPE_0: 9960 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9961 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9962 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9963 break; 9964 case LPFC_SLI_INTF_IF_TYPE_2: 9965 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9966 break; 9967 case LPFC_SLI_INTF_IF_TYPE_6: 9968 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9969 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9970 break; 9971 case LPFC_SLI_INTF_IF_TYPE_1: 9972 default: 9973 dev_printk(KERN_ERR, &phba->pcidev->dev, 9974 "FATAL - unsupported SLI4 interface type - %d\n", 9975 if_type); 9976 break; 9977 } 9978 } 9979 9980 /** 9981 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9982 * @phba: pointer to lpfc hba data structure. 9983 * 9984 * This routine is invoked to enable the MSI-X interrupt vectors to device 9985 * with SLI-3 interface specs. 9986 * 9987 * Return codes 9988 * 0 - successful 9989 * other values - error 9990 **/ 9991 static int 9992 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9993 { 9994 int rc; 9995 LPFC_MBOXQ_t *pmb; 9996 9997 /* Set up MSI-X multi-message vectors */ 9998 rc = pci_alloc_irq_vectors(phba->pcidev, 9999 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 10000 if (rc < 0) { 10001 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10002 "0420 PCI enable MSI-X failed (%d)\n", rc); 10003 goto vec_fail_out; 10004 } 10005 10006 /* 10007 * Assign MSI-X vectors to interrupt handlers 10008 */ 10009 10010 /* vector-0 is associated to slow-path handler */ 10011 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 10012 &lpfc_sli_sp_intr_handler, 0, 10013 LPFC_SP_DRIVER_HANDLER_NAME, phba); 10014 if (rc) { 10015 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10016 "0421 MSI-X slow-path request_irq failed " 10017 "(%d)\n", rc); 10018 goto msi_fail_out; 10019 } 10020 10021 /* vector-1 is associated to fast-path handler */ 10022 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 10023 &lpfc_sli_fp_intr_handler, 0, 10024 LPFC_FP_DRIVER_HANDLER_NAME, phba); 10025 10026 if (rc) { 10027 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10028 "0429 MSI-X fast-path request_irq failed " 10029 "(%d)\n", rc); 10030 goto irq_fail_out; 10031 } 10032 10033 /* 10034 * Configure HBA MSI-X attention conditions to messages 10035 */ 10036 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 10037 10038 if (!pmb) { 10039 rc = -ENOMEM; 10040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10041 "0474 Unable to allocate memory for issuing " 10042 "MBOX_CONFIG_MSI command\n"); 10043 goto mem_fail_out; 10044 } 10045 rc = lpfc_config_msi(phba, pmb); 10046 if (rc) 10047 goto mbx_fail_out; 10048 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 10049 if (rc != MBX_SUCCESS) { 10050 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 10051 "0351 Config MSI mailbox command failed, " 10052 "mbxCmd x%x, mbxStatus x%x\n", 10053 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 10054 goto mbx_fail_out; 10055 } 10056 10057 /* Free memory allocated for mailbox command */ 10058 mempool_free(pmb, phba->mbox_mem_pool); 10059 return rc; 10060 10061 mbx_fail_out: 10062 /* Free memory allocated for mailbox command */ 10063 mempool_free(pmb, phba->mbox_mem_pool); 10064 10065 mem_fail_out: 10066 /* free the irq already requested */ 10067 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 10068 10069 irq_fail_out: 10070 /* free the irq already requested */ 10071 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 10072 10073 msi_fail_out: 10074 /* Unconfigure MSI-X capability structure */ 10075 pci_free_irq_vectors(phba->pcidev); 10076 10077 vec_fail_out: 10078 return rc; 10079 } 10080 10081 /** 10082 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 10083 * @phba: pointer to lpfc hba data structure. 10084 * 10085 * This routine is invoked to enable the MSI interrupt mode to device with 10086 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 10087 * enable the MSI vector. The device driver is responsible for calling the 10088 * request_irq() to register MSI vector with a interrupt the handler, which 10089 * is done in this function. 10090 * 10091 * Return codes 10092 * 0 - successful 10093 * other values - error 10094 */ 10095 static int 10096 lpfc_sli_enable_msi(struct lpfc_hba *phba) 10097 { 10098 int rc; 10099 10100 rc = pci_enable_msi(phba->pcidev); 10101 if (!rc) 10102 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10103 "0462 PCI enable MSI mode success.\n"); 10104 else { 10105 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10106 "0471 PCI enable MSI mode failed (%d)\n", rc); 10107 return rc; 10108 } 10109 10110 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 10111 0, LPFC_DRIVER_NAME, phba); 10112 if (rc) { 10113 pci_disable_msi(phba->pcidev); 10114 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10115 "0478 MSI request_irq failed (%d)\n", rc); 10116 } 10117 return rc; 10118 } 10119 10120 /** 10121 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 10122 * @phba: pointer to lpfc hba data structure. 10123 * 10124 * This routine is invoked to enable device interrupt and associate driver's 10125 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 10126 * spec. Depends on the interrupt mode configured to the driver, the driver 10127 * will try to fallback from the configured interrupt mode to an interrupt 10128 * mode which is supported by the platform, kernel, and device in the order 10129 * of: 10130 * MSI-X -> MSI -> IRQ. 10131 * 10132 * Return codes 10133 * 0 - successful 10134 * other values - error 10135 **/ 10136 static uint32_t 10137 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 10138 { 10139 uint32_t intr_mode = LPFC_INTR_ERROR; 10140 int retval; 10141 10142 if (cfg_mode == 2) { 10143 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 10144 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 10145 if (!retval) { 10146 /* Now, try to enable MSI-X interrupt mode */ 10147 retval = lpfc_sli_enable_msix(phba); 10148 if (!retval) { 10149 /* Indicate initialization to MSI-X mode */ 10150 phba->intr_type = MSIX; 10151 intr_mode = 2; 10152 } 10153 } 10154 } 10155 10156 /* Fallback to MSI if MSI-X initialization failed */ 10157 if (cfg_mode >= 1 && phba->intr_type == NONE) { 10158 retval = lpfc_sli_enable_msi(phba); 10159 if (!retval) { 10160 /* Indicate initialization to MSI mode */ 10161 phba->intr_type = MSI; 10162 intr_mode = 1; 10163 } 10164 } 10165 10166 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 10167 if (phba->intr_type == NONE) { 10168 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 10169 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 10170 if (!retval) { 10171 /* Indicate initialization to INTx mode */ 10172 phba->intr_type = INTx; 10173 intr_mode = 0; 10174 } 10175 } 10176 return intr_mode; 10177 } 10178 10179 /** 10180 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 10181 * @phba: pointer to lpfc hba data structure. 10182 * 10183 * This routine is invoked to disable device interrupt and disassociate the 10184 * driver's interrupt handler(s) from interrupt vector(s) to device with 10185 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 10186 * release the interrupt vector(s) for the message signaled interrupt. 10187 **/ 10188 static void 10189 lpfc_sli_disable_intr(struct lpfc_hba *phba) 10190 { 10191 int nr_irqs, i; 10192 10193 if (phba->intr_type == MSIX) 10194 nr_irqs = LPFC_MSIX_VECTORS; 10195 else 10196 nr_irqs = 1; 10197 10198 for (i = 0; i < nr_irqs; i++) 10199 free_irq(pci_irq_vector(phba->pcidev, i), phba); 10200 pci_free_irq_vectors(phba->pcidev); 10201 10202 /* Reset interrupt management states */ 10203 phba->intr_type = NONE; 10204 phba->sli.slistat.sli_intr = 0; 10205 } 10206 10207 /** 10208 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 10209 * @phba: pointer to lpfc hba data structure. 10210 * @vectors: number of msix vectors allocated. 10211 * 10212 * The routine will figure out the CPU affinity assignment for every 10213 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 10214 * with a pointer to the CPU mask that defines ALL the CPUs this vector 10215 * can be associated with. If the vector can be unquely associated with 10216 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 10217 * In addition, the CPU to IO channel mapping will be calculated 10218 * and the phba->sli4_hba.cpu_map array will reflect this. 10219 */ 10220 static void 10221 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 10222 { 10223 struct lpfc_vector_map_info *cpup; 10224 int index = 0; 10225 int vec = 0; 10226 int cpu; 10227 #ifdef CONFIG_X86 10228 struct cpuinfo_x86 *cpuinfo; 10229 #endif 10230 10231 /* Init cpu_map array */ 10232 memset(phba->sli4_hba.cpu_map, 0xff, 10233 (sizeof(struct lpfc_vector_map_info) * 10234 phba->sli4_hba.num_present_cpu)); 10235 10236 /* Update CPU map with physical id and core id of each CPU */ 10237 cpup = phba->sli4_hba.cpu_map; 10238 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 10239 #ifdef CONFIG_X86 10240 cpuinfo = &cpu_data(cpu); 10241 cpup->phys_id = cpuinfo->phys_proc_id; 10242 cpup->core_id = cpuinfo->cpu_core_id; 10243 #else 10244 /* No distinction between CPUs for other platforms */ 10245 cpup->phys_id = 0; 10246 cpup->core_id = 0; 10247 #endif 10248 cpup->channel_id = index; /* For now round robin */ 10249 cpup->irq = pci_irq_vector(phba->pcidev, vec); 10250 vec++; 10251 if (vec >= vectors) 10252 vec = 0; 10253 index++; 10254 if (index >= phba->cfg_fcp_io_channel) 10255 index = 0; 10256 cpup++; 10257 } 10258 } 10259 10260 10261 /** 10262 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 10263 * @phba: pointer to lpfc hba data structure. 10264 * 10265 * This routine is invoked to enable the MSI-X interrupt vectors to device 10266 * with SLI-4 interface spec. 10267 * 10268 * Return codes 10269 * 0 - successful 10270 * other values - error 10271 **/ 10272 static int 10273 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 10274 { 10275 int vectors, rc, index; 10276 char *name; 10277 10278 /* Set up MSI-X multi-message vectors */ 10279 vectors = phba->io_channel_irqs; 10280 if (phba->cfg_fof) 10281 vectors++; 10282 10283 rc = pci_alloc_irq_vectors(phba->pcidev, 10284 (phba->nvmet_support) ? 1 : 2, 10285 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 10286 if (rc < 0) { 10287 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10288 "0484 PCI enable MSI-X failed (%d)\n", rc); 10289 goto vec_fail_out; 10290 } 10291 vectors = rc; 10292 10293 /* Assign MSI-X vectors to interrupt handlers */ 10294 for (index = 0; index < vectors; index++) { 10295 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 10296 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 10297 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 10298 LPFC_DRIVER_HANDLER_NAME"%d", index); 10299 10300 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10301 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10302 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 10303 if (phba->cfg_fof && (index == (vectors - 1))) 10304 rc = request_irq(pci_irq_vector(phba->pcidev, index), 10305 &lpfc_sli4_fof_intr_handler, 0, 10306 name, 10307 &phba->sli4_hba.hba_eq_hdl[index]); 10308 else 10309 rc = request_irq(pci_irq_vector(phba->pcidev, index), 10310 &lpfc_sli4_hba_intr_handler, 0, 10311 name, 10312 &phba->sli4_hba.hba_eq_hdl[index]); 10313 if (rc) { 10314 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10315 "0486 MSI-X fast-path (%d) " 10316 "request_irq failed (%d)\n", index, rc); 10317 goto cfg_fail_out; 10318 } 10319 } 10320 10321 if (phba->cfg_fof) 10322 vectors--; 10323 10324 if (vectors != phba->io_channel_irqs) { 10325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10326 "3238 Reducing IO channels to match number of " 10327 "MSI-X vectors, requested %d got %d\n", 10328 phba->io_channel_irqs, vectors); 10329 if (phba->cfg_fcp_io_channel > vectors) 10330 phba->cfg_fcp_io_channel = vectors; 10331 if (phba->cfg_nvme_io_channel > vectors) 10332 phba->cfg_nvme_io_channel = vectors; 10333 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 10334 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10335 else 10336 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 10337 } 10338 lpfc_cpu_affinity_check(phba, vectors); 10339 10340 return rc; 10341 10342 cfg_fail_out: 10343 /* free the irq already requested */ 10344 for (--index; index >= 0; index--) 10345 free_irq(pci_irq_vector(phba->pcidev, index), 10346 &phba->sli4_hba.hba_eq_hdl[index]); 10347 10348 /* Unconfigure MSI-X capability structure */ 10349 pci_free_irq_vectors(phba->pcidev); 10350 10351 vec_fail_out: 10352 return rc; 10353 } 10354 10355 /** 10356 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 10357 * @phba: pointer to lpfc hba data structure. 10358 * 10359 * This routine is invoked to enable the MSI interrupt mode to device with 10360 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 10361 * to enable the MSI vector. The device driver is responsible for calling 10362 * the request_irq() to register MSI vector with a interrupt the handler, 10363 * which is done in this function. 10364 * 10365 * Return codes 10366 * 0 - successful 10367 * other values - error 10368 **/ 10369 static int 10370 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 10371 { 10372 int rc, index; 10373 10374 rc = pci_enable_msi(phba->pcidev); 10375 if (!rc) 10376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10377 "0487 PCI enable MSI mode success.\n"); 10378 else { 10379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10380 "0488 PCI enable MSI mode failed (%d)\n", rc); 10381 return rc; 10382 } 10383 10384 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 10385 0, LPFC_DRIVER_NAME, phba); 10386 if (rc) { 10387 pci_disable_msi(phba->pcidev); 10388 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 10389 "0490 MSI request_irq failed (%d)\n", rc); 10390 return rc; 10391 } 10392 10393 for (index = 0; index < phba->io_channel_irqs; index++) { 10394 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10395 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10396 } 10397 10398 if (phba->cfg_fof) { 10399 phba->sli4_hba.hba_eq_hdl[index].idx = index; 10400 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 10401 } 10402 return 0; 10403 } 10404 10405 /** 10406 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 10407 * @phba: pointer to lpfc hba data structure. 10408 * 10409 * This routine is invoked to enable device interrupt and associate driver's 10410 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 10411 * interface spec. Depends on the interrupt mode configured to the driver, 10412 * the driver will try to fallback from the configured interrupt mode to an 10413 * interrupt mode which is supported by the platform, kernel, and device in 10414 * the order of: 10415 * MSI-X -> MSI -> IRQ. 10416 * 10417 * Return codes 10418 * 0 - successful 10419 * other values - error 10420 **/ 10421 static uint32_t 10422 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 10423 { 10424 uint32_t intr_mode = LPFC_INTR_ERROR; 10425 int retval, idx; 10426 10427 if (cfg_mode == 2) { 10428 /* Preparation before conf_msi mbox cmd */ 10429 retval = 0; 10430 if (!retval) { 10431 /* Now, try to enable MSI-X interrupt mode */ 10432 retval = lpfc_sli4_enable_msix(phba); 10433 if (!retval) { 10434 /* Indicate initialization to MSI-X mode */ 10435 phba->intr_type = MSIX; 10436 intr_mode = 2; 10437 } 10438 } 10439 } 10440 10441 /* Fallback to MSI if MSI-X initialization failed */ 10442 if (cfg_mode >= 1 && phba->intr_type == NONE) { 10443 retval = lpfc_sli4_enable_msi(phba); 10444 if (!retval) { 10445 /* Indicate initialization to MSI mode */ 10446 phba->intr_type = MSI; 10447 intr_mode = 1; 10448 } 10449 } 10450 10451 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 10452 if (phba->intr_type == NONE) { 10453 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 10454 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 10455 if (!retval) { 10456 struct lpfc_hba_eq_hdl *eqhdl; 10457 10458 /* Indicate initialization to INTx mode */ 10459 phba->intr_type = INTx; 10460 intr_mode = 0; 10461 10462 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 10463 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 10464 eqhdl->idx = idx; 10465 eqhdl->phba = phba; 10466 atomic_set(&eqhdl->hba_eq_in_use, 1); 10467 } 10468 if (phba->cfg_fof) { 10469 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 10470 eqhdl->idx = idx; 10471 eqhdl->phba = phba; 10472 atomic_set(&eqhdl->hba_eq_in_use, 1); 10473 } 10474 } 10475 } 10476 return intr_mode; 10477 } 10478 10479 /** 10480 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 10481 * @phba: pointer to lpfc hba data structure. 10482 * 10483 * This routine is invoked to disable device interrupt and disassociate 10484 * the driver's interrupt handler(s) from interrupt vector(s) to device 10485 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 10486 * will release the interrupt vector(s) for the message signaled interrupt. 10487 **/ 10488 static void 10489 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 10490 { 10491 /* Disable the currently initialized interrupt mode */ 10492 if (phba->intr_type == MSIX) { 10493 int index; 10494 10495 /* Free up MSI-X multi-message vectors */ 10496 for (index = 0; index < phba->io_channel_irqs; index++) 10497 free_irq(pci_irq_vector(phba->pcidev, index), 10498 &phba->sli4_hba.hba_eq_hdl[index]); 10499 10500 if (phba->cfg_fof) 10501 free_irq(pci_irq_vector(phba->pcidev, index), 10502 &phba->sli4_hba.hba_eq_hdl[index]); 10503 } else { 10504 free_irq(phba->pcidev->irq, phba); 10505 } 10506 10507 pci_free_irq_vectors(phba->pcidev); 10508 10509 /* Reset interrupt management states */ 10510 phba->intr_type = NONE; 10511 phba->sli.slistat.sli_intr = 0; 10512 } 10513 10514 /** 10515 * lpfc_unset_hba - Unset SLI3 hba device initialization 10516 * @phba: pointer to lpfc hba data structure. 10517 * 10518 * This routine is invoked to unset the HBA device initialization steps to 10519 * a device with SLI-3 interface spec. 10520 **/ 10521 static void 10522 lpfc_unset_hba(struct lpfc_hba *phba) 10523 { 10524 struct lpfc_vport *vport = phba->pport; 10525 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10526 10527 spin_lock_irq(shost->host_lock); 10528 vport->load_flag |= FC_UNLOADING; 10529 spin_unlock_irq(shost->host_lock); 10530 10531 kfree(phba->vpi_bmask); 10532 kfree(phba->vpi_ids); 10533 10534 lpfc_stop_hba_timers(phba); 10535 10536 phba->pport->work_port_events = 0; 10537 10538 lpfc_sli_hba_down(phba); 10539 10540 lpfc_sli_brdrestart(phba); 10541 10542 lpfc_sli_disable_intr(phba); 10543 10544 return; 10545 } 10546 10547 /** 10548 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10549 * @phba: Pointer to HBA context object. 10550 * 10551 * This function is called in the SLI4 code path to wait for completion 10552 * of device's XRIs exchange busy. It will check the XRI exchange busy 10553 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10554 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10555 * I/Os every 30 seconds, log error message, and wait forever. Only when 10556 * all XRI exchange busy complete, the driver unload shall proceed with 10557 * invoking the function reset ioctl mailbox command to the CNA and the 10558 * the rest of the driver unload resource release. 10559 **/ 10560 static void 10561 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10562 { 10563 int wait_time = 0; 10564 int nvme_xri_cmpl = 1; 10565 int nvmet_xri_cmpl = 1; 10566 int fcp_xri_cmpl = 1; 10567 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10568 10569 /* Driver just aborted IOs during the hba_unset process. Pause 10570 * here to give the HBA time to complete the IO and get entries 10571 * into the abts lists. 10572 */ 10573 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5); 10574 10575 /* Wait for NVME pending IO to flush back to transport. */ 10576 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 10577 lpfc_nvme_wait_for_io_drain(phba); 10578 10579 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10580 fcp_xri_cmpl = 10581 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10582 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10583 nvme_xri_cmpl = 10584 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10585 nvmet_xri_cmpl = 10586 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10587 } 10588 10589 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10590 !nvmet_xri_cmpl) { 10591 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10592 if (!nvmet_xri_cmpl) 10593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10594 "6424 NVMET XRI exchange busy " 10595 "wait time: %d seconds.\n", 10596 wait_time/1000); 10597 if (!nvme_xri_cmpl) 10598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10599 "6100 NVME XRI exchange busy " 10600 "wait time: %d seconds.\n", 10601 wait_time/1000); 10602 if (!fcp_xri_cmpl) 10603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10604 "2877 FCP XRI exchange busy " 10605 "wait time: %d seconds.\n", 10606 wait_time/1000); 10607 if (!els_xri_cmpl) 10608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10609 "2878 ELS XRI exchange busy " 10610 "wait time: %d seconds.\n", 10611 wait_time/1000); 10612 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10613 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10614 } else { 10615 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10616 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10617 } 10618 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10619 nvme_xri_cmpl = list_empty( 10620 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10621 nvmet_xri_cmpl = list_empty( 10622 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10623 } 10624 10625 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10626 fcp_xri_cmpl = list_empty( 10627 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10628 10629 els_xri_cmpl = 10630 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10631 10632 } 10633 } 10634 10635 /** 10636 * lpfc_sli4_hba_unset - Unset the fcoe hba 10637 * @phba: Pointer to HBA context object. 10638 * 10639 * This function is called in the SLI4 code path to reset the HBA's FCoE 10640 * function. The caller is not required to hold any lock. This routine 10641 * issues PCI function reset mailbox command to reset the FCoE function. 10642 * At the end of the function, it calls lpfc_hba_down_post function to 10643 * free any pending commands. 10644 **/ 10645 static void 10646 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10647 { 10648 int wait_cnt = 0; 10649 LPFC_MBOXQ_t *mboxq; 10650 struct pci_dev *pdev = phba->pcidev; 10651 10652 lpfc_stop_hba_timers(phba); 10653 phba->sli4_hba.intr_enable = 0; 10654 10655 /* 10656 * Gracefully wait out the potential current outstanding asynchronous 10657 * mailbox command. 10658 */ 10659 10660 /* First, block any pending async mailbox command from posted */ 10661 spin_lock_irq(&phba->hbalock); 10662 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10663 spin_unlock_irq(&phba->hbalock); 10664 /* Now, trying to wait it out if we can */ 10665 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10666 msleep(10); 10667 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10668 break; 10669 } 10670 /* Forcefully release the outstanding mailbox command if timed out */ 10671 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10672 spin_lock_irq(&phba->hbalock); 10673 mboxq = phba->sli.mbox_active; 10674 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10675 __lpfc_mbox_cmpl_put(phba, mboxq); 10676 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10677 phba->sli.mbox_active = NULL; 10678 spin_unlock_irq(&phba->hbalock); 10679 } 10680 10681 /* Abort all iocbs associated with the hba */ 10682 lpfc_sli_hba_iocb_abort(phba); 10683 10684 /* Wait for completion of device XRI exchange busy */ 10685 lpfc_sli4_xri_exchange_busy_wait(phba); 10686 10687 /* Disable PCI subsystem interrupt */ 10688 lpfc_sli4_disable_intr(phba); 10689 10690 /* Disable SR-IOV if enabled */ 10691 if (phba->cfg_sriov_nr_virtfn) 10692 pci_disable_sriov(pdev); 10693 10694 /* Stop kthread signal shall trigger work_done one more time */ 10695 kthread_stop(phba->worker_thread); 10696 10697 /* Disable FW logging to host memory */ 10698 lpfc_ras_stop_fwlog(phba); 10699 10700 /* Unset the queues shared with the hardware then release all 10701 * allocated resources. 10702 */ 10703 lpfc_sli4_queue_unset(phba); 10704 lpfc_sli4_queue_destroy(phba); 10705 10706 /* Reset SLI4 HBA FCoE function */ 10707 lpfc_pci_function_reset(phba); 10708 10709 /* Free RAS DMA memory */ 10710 if (phba->ras_fwlog.ras_enabled) 10711 lpfc_sli4_ras_dma_free(phba); 10712 10713 /* Stop the SLI4 device port */ 10714 phba->pport->work_port_events = 0; 10715 } 10716 10717 /** 10718 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10719 * @phba: Pointer to HBA context object. 10720 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10721 * 10722 * This function is called in the SLI4 code path to read the port's 10723 * sli4 capabilities. 10724 * 10725 * This function may be be called from any context that can block-wait 10726 * for the completion. The expectation is that this routine is called 10727 * typically from probe_one or from the online routine. 10728 **/ 10729 int 10730 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10731 { 10732 int rc; 10733 struct lpfc_mqe *mqe; 10734 struct lpfc_pc_sli4_params *sli4_params; 10735 uint32_t mbox_tmo; 10736 10737 rc = 0; 10738 mqe = &mboxq->u.mqe; 10739 10740 /* Read the port's SLI4 Parameters port capabilities */ 10741 lpfc_pc_sli4_params(mboxq); 10742 if (!phba->sli4_hba.intr_enable) 10743 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10744 else { 10745 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10746 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10747 } 10748 10749 if (unlikely(rc)) 10750 return 1; 10751 10752 sli4_params = &phba->sli4_hba.pc_sli4_params; 10753 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10754 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10755 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10756 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10757 &mqe->un.sli4_params); 10758 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10759 &mqe->un.sli4_params); 10760 sli4_params->proto_types = mqe->un.sli4_params.word3; 10761 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10762 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10763 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10764 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10765 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10766 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10767 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10768 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10769 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10770 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10771 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10772 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10773 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10774 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10775 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10776 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10777 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10778 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10779 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10780 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10781 10782 /* Make sure that sge_supp_len can be handled by the driver */ 10783 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10784 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10785 10786 return rc; 10787 } 10788 10789 /** 10790 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10791 * @phba: Pointer to HBA context object. 10792 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10793 * 10794 * This function is called in the SLI4 code path to read the port's 10795 * sli4 capabilities. 10796 * 10797 * This function may be be called from any context that can block-wait 10798 * for the completion. The expectation is that this routine is called 10799 * typically from probe_one or from the online routine. 10800 **/ 10801 int 10802 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10803 { 10804 int rc; 10805 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10806 struct lpfc_pc_sli4_params *sli4_params; 10807 uint32_t mbox_tmo; 10808 int length; 10809 bool exp_wqcq_pages = true; 10810 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10811 10812 /* 10813 * By default, the driver assumes the SLI4 port requires RPI 10814 * header postings. The SLI4_PARAM response will correct this 10815 * assumption. 10816 */ 10817 phba->sli4_hba.rpi_hdrs_in_use = 1; 10818 10819 /* Read the port's SLI4 Config Parameters */ 10820 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10821 sizeof(struct lpfc_sli4_cfg_mhdr)); 10822 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10823 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10824 length, LPFC_SLI4_MBX_EMBED); 10825 if (!phba->sli4_hba.intr_enable) 10826 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10827 else { 10828 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10829 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10830 } 10831 if (unlikely(rc)) 10832 return rc; 10833 sli4_params = &phba->sli4_hba.pc_sli4_params; 10834 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10835 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10836 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10837 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10838 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10839 mbx_sli4_parameters); 10840 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10841 mbx_sli4_parameters); 10842 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10843 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10844 else 10845 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10846 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10847 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10848 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10849 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10850 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10851 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10852 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10853 sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters); 10854 sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters); 10855 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10856 sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters); 10857 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10858 mbx_sli4_parameters); 10859 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10860 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10861 mbx_sli4_parameters); 10862 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10863 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10864 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10865 bf_get(cfg_xib, mbx_sli4_parameters)); 10866 10867 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10868 !phba->nvme_support) { 10869 phba->nvme_support = 0; 10870 phba->nvmet_support = 0; 10871 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF; 10872 phba->cfg_nvme_io_channel = 0; 10873 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10875 "6101 Disabling NVME support: " 10876 "Not supported by firmware: %d %d\n", 10877 bf_get(cfg_nvme, mbx_sli4_parameters), 10878 bf_get(cfg_xib, mbx_sli4_parameters)); 10879 10880 /* If firmware doesn't support NVME, just use SCSI support */ 10881 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10882 return -ENODEV; 10883 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10884 } 10885 10886 /* Only embed PBDE for if_type 6, PBDE support requires xib be set */ 10887 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 10888 LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters))) 10889 phba->cfg_enable_pbde = 0; 10890 10891 /* 10892 * To support Suppress Response feature we must satisfy 3 conditions. 10893 * lpfc_suppress_rsp module parameter must be set (default). 10894 * In SLI4-Parameters Descriptor: 10895 * Extended Inline Buffers (XIB) must be supported. 10896 * Suppress Response IU Not Supported (SRIUNS) must NOT be supported 10897 * (double negative). 10898 */ 10899 if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) && 10900 !(bf_get(cfg_nosr, mbx_sli4_parameters))) 10901 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10902 else 10903 phba->cfg_suppress_rsp = 0; 10904 10905 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10906 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10907 10908 /* Make sure that sge_supp_len can be handled by the driver */ 10909 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10910 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10911 10912 /* 10913 * Check whether the adapter supports an embedded copy of the 10914 * FCP CMD IU within the WQE for FCP_Ixxx commands. In order 10915 * to use this option, 128-byte WQEs must be used. 10916 */ 10917 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10918 phba->fcp_embed_io = 1; 10919 else 10920 phba->fcp_embed_io = 0; 10921 10922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, 10923 "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n", 10924 bf_get(cfg_xib, mbx_sli4_parameters), 10925 phba->cfg_enable_pbde, 10926 phba->fcp_embed_io, phba->nvme_support, 10927 phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp); 10928 10929 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 10930 LPFC_SLI_INTF_IF_TYPE_2) && 10931 (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) == 10932 LPFC_SLI_INTF_FAMILY_LNCR_A0)) 10933 exp_wqcq_pages = false; 10934 10935 if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) && 10936 (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) && 10937 exp_wqcq_pages && 10938 (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT)) 10939 phba->enab_exp_wqcq_pages = 1; 10940 else 10941 phba->enab_exp_wqcq_pages = 0; 10942 /* 10943 * Check if the SLI port supports MDS Diagnostics 10944 */ 10945 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10946 phba->mds_diags_support = 1; 10947 else 10948 phba->mds_diags_support = 0; 10949 10950 return 0; 10951 } 10952 10953 /** 10954 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10955 * @pdev: pointer to PCI device 10956 * @pid: pointer to PCI device identifier 10957 * 10958 * This routine is to be called to attach a device with SLI-3 interface spec 10959 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10960 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10961 * information of the device and driver to see if the driver state that it can 10962 * support this kind of device. If the match is successful, the driver core 10963 * invokes this routine. If this routine determines it can claim the HBA, it 10964 * does all the initialization that it needs to do to handle the HBA properly. 10965 * 10966 * Return code 10967 * 0 - driver can claim the device 10968 * negative value - driver can not claim the device 10969 **/ 10970 static int 10971 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10972 { 10973 struct lpfc_hba *phba; 10974 struct lpfc_vport *vport = NULL; 10975 struct Scsi_Host *shost = NULL; 10976 int error; 10977 uint32_t cfg_mode, intr_mode; 10978 10979 /* Allocate memory for HBA structure */ 10980 phba = lpfc_hba_alloc(pdev); 10981 if (!phba) 10982 return -ENOMEM; 10983 10984 /* Perform generic PCI device enabling operation */ 10985 error = lpfc_enable_pci_dev(phba); 10986 if (error) 10987 goto out_free_phba; 10988 10989 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10990 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10991 if (error) 10992 goto out_disable_pci_dev; 10993 10994 /* Set up SLI-3 specific device PCI memory space */ 10995 error = lpfc_sli_pci_mem_setup(phba); 10996 if (error) { 10997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10998 "1402 Failed to set up pci memory space.\n"); 10999 goto out_disable_pci_dev; 11000 } 11001 11002 /* Set up SLI-3 specific device driver resources */ 11003 error = lpfc_sli_driver_resource_setup(phba); 11004 if (error) { 11005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11006 "1404 Failed to set up driver resource.\n"); 11007 goto out_unset_pci_mem_s3; 11008 } 11009 11010 /* Initialize and populate the iocb list per host */ 11011 11012 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 11013 if (error) { 11014 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11015 "1405 Failed to initialize iocb list.\n"); 11016 goto out_unset_driver_resource_s3; 11017 } 11018 11019 /* Set up common device driver resources */ 11020 error = lpfc_setup_driver_resource_phase2(phba); 11021 if (error) { 11022 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11023 "1406 Failed to set up driver resource.\n"); 11024 goto out_free_iocb_list; 11025 } 11026 11027 /* Get the default values for Model Name and Description */ 11028 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11029 11030 /* Create SCSI host to the physical port */ 11031 error = lpfc_create_shost(phba); 11032 if (error) { 11033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11034 "1407 Failed to create scsi host.\n"); 11035 goto out_unset_driver_resource; 11036 } 11037 11038 /* Configure sysfs attributes */ 11039 vport = phba->pport; 11040 error = lpfc_alloc_sysfs_attr(vport); 11041 if (error) { 11042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11043 "1476 Failed to allocate sysfs attr\n"); 11044 goto out_destroy_shost; 11045 } 11046 11047 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11048 /* Now, trying to enable interrupt and bring up the device */ 11049 cfg_mode = phba->cfg_use_msi; 11050 while (true) { 11051 /* Put device to a known state before enabling interrupt */ 11052 lpfc_stop_port(phba); 11053 /* Configure and enable interrupt */ 11054 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 11055 if (intr_mode == LPFC_INTR_ERROR) { 11056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11057 "0431 Failed to enable interrupt.\n"); 11058 error = -ENODEV; 11059 goto out_free_sysfs_attr; 11060 } 11061 /* SLI-3 HBA setup */ 11062 if (lpfc_sli_hba_setup(phba)) { 11063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11064 "1477 Failed to set up hba\n"); 11065 error = -ENODEV; 11066 goto out_remove_device; 11067 } 11068 11069 /* Wait 50ms for the interrupts of previous mailbox commands */ 11070 msleep(50); 11071 /* Check active interrupts on message signaled interrupts */ 11072 if (intr_mode == 0 || 11073 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 11074 /* Log the current active interrupt mode */ 11075 phba->intr_mode = intr_mode; 11076 lpfc_log_intr_mode(phba, intr_mode); 11077 break; 11078 } else { 11079 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11080 "0447 Configure interrupt mode (%d) " 11081 "failed active interrupt test.\n", 11082 intr_mode); 11083 /* Disable the current interrupt mode */ 11084 lpfc_sli_disable_intr(phba); 11085 /* Try next level of interrupt mode */ 11086 cfg_mode = --intr_mode; 11087 } 11088 } 11089 11090 /* Perform post initialization setup */ 11091 lpfc_post_init_setup(phba); 11092 11093 /* Check if there are static vports to be created. */ 11094 lpfc_create_static_vport(phba); 11095 11096 return 0; 11097 11098 out_remove_device: 11099 lpfc_unset_hba(phba); 11100 out_free_sysfs_attr: 11101 lpfc_free_sysfs_attr(vport); 11102 out_destroy_shost: 11103 lpfc_destroy_shost(phba); 11104 out_unset_driver_resource: 11105 lpfc_unset_driver_resource_phase2(phba); 11106 out_free_iocb_list: 11107 lpfc_free_iocb_list(phba); 11108 out_unset_driver_resource_s3: 11109 lpfc_sli_driver_resource_unset(phba); 11110 out_unset_pci_mem_s3: 11111 lpfc_sli_pci_mem_unset(phba); 11112 out_disable_pci_dev: 11113 lpfc_disable_pci_dev(phba); 11114 if (shost) 11115 scsi_host_put(shost); 11116 out_free_phba: 11117 lpfc_hba_free(phba); 11118 return error; 11119 } 11120 11121 /** 11122 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 11123 * @pdev: pointer to PCI device 11124 * 11125 * This routine is to be called to disattach a device with SLI-3 interface 11126 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 11127 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11128 * device to be removed from the PCI subsystem properly. 11129 **/ 11130 static void 11131 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 11132 { 11133 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11134 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11135 struct lpfc_vport **vports; 11136 struct lpfc_hba *phba = vport->phba; 11137 int i; 11138 11139 spin_lock_irq(&phba->hbalock); 11140 vport->load_flag |= FC_UNLOADING; 11141 spin_unlock_irq(&phba->hbalock); 11142 11143 lpfc_free_sysfs_attr(vport); 11144 11145 /* Release all the vports against this physical port */ 11146 vports = lpfc_create_vport_work_array(phba); 11147 if (vports != NULL) 11148 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11149 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11150 continue; 11151 fc_vport_terminate(vports[i]->fc_vport); 11152 } 11153 lpfc_destroy_vport_work_array(phba, vports); 11154 11155 /* Remove FC host and then SCSI host with the physical port */ 11156 fc_remove_host(shost); 11157 scsi_remove_host(shost); 11158 11159 lpfc_cleanup(vport); 11160 11161 /* 11162 * Bring down the SLI Layer. This step disable all interrupts, 11163 * clears the rings, discards all mailbox commands, and resets 11164 * the HBA. 11165 */ 11166 11167 /* HBA interrupt will be disabled after this call */ 11168 lpfc_sli_hba_down(phba); 11169 /* Stop kthread signal shall trigger work_done one more time */ 11170 kthread_stop(phba->worker_thread); 11171 /* Final cleanup of txcmplq and reset the HBA */ 11172 lpfc_sli_brdrestart(phba); 11173 11174 kfree(phba->vpi_bmask); 11175 kfree(phba->vpi_ids); 11176 11177 lpfc_stop_hba_timers(phba); 11178 spin_lock_irq(&phba->port_list_lock); 11179 list_del_init(&vport->listentry); 11180 spin_unlock_irq(&phba->port_list_lock); 11181 11182 lpfc_debugfs_terminate(vport); 11183 11184 /* Disable SR-IOV if enabled */ 11185 if (phba->cfg_sriov_nr_virtfn) 11186 pci_disable_sriov(pdev); 11187 11188 /* Disable interrupt */ 11189 lpfc_sli_disable_intr(phba); 11190 11191 scsi_host_put(shost); 11192 11193 /* 11194 * Call scsi_free before mem_free since scsi bufs are released to their 11195 * corresponding pools here. 11196 */ 11197 lpfc_scsi_free(phba); 11198 lpfc_mem_free_all(phba); 11199 11200 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 11201 phba->hbqslimp.virt, phba->hbqslimp.phys); 11202 11203 /* Free resources associated with SLI2 interface */ 11204 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 11205 phba->slim2p.virt, phba->slim2p.phys); 11206 11207 /* unmap adapter SLIM and Control Registers */ 11208 iounmap(phba->ctrl_regs_memmap_p); 11209 iounmap(phba->slim_memmap_p); 11210 11211 lpfc_hba_free(phba); 11212 11213 pci_release_mem_regions(pdev); 11214 pci_disable_device(pdev); 11215 } 11216 11217 /** 11218 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 11219 * @pdev: pointer to PCI device 11220 * @msg: power management message 11221 * 11222 * This routine is to be called from the kernel's PCI subsystem to support 11223 * system Power Management (PM) to device with SLI-3 interface spec. When 11224 * PM invokes this method, it quiesces the device by stopping the driver's 11225 * worker thread for the device, turning off device's interrupt and DMA, 11226 * and bring the device offline. Note that as the driver implements the 11227 * minimum PM requirements to a power-aware driver's PM support for the 11228 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11229 * to the suspend() method call will be treated as SUSPEND and the driver will 11230 * fully reinitialize its device during resume() method call, the driver will 11231 * set device to PCI_D3hot state in PCI config space instead of setting it 11232 * according to the @msg provided by the PM. 11233 * 11234 * Return code 11235 * 0 - driver suspended the device 11236 * Error otherwise 11237 **/ 11238 static int 11239 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 11240 { 11241 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11242 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11243 11244 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11245 "0473 PCI device Power Management suspend.\n"); 11246 11247 /* Bring down the device */ 11248 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11249 lpfc_offline(phba); 11250 kthread_stop(phba->worker_thread); 11251 11252 /* Disable interrupt from device */ 11253 lpfc_sli_disable_intr(phba); 11254 11255 /* Save device state to PCI config space */ 11256 pci_save_state(pdev); 11257 pci_set_power_state(pdev, PCI_D3hot); 11258 11259 return 0; 11260 } 11261 11262 /** 11263 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 11264 * @pdev: pointer to PCI device 11265 * 11266 * This routine is to be called from the kernel's PCI subsystem to support 11267 * system Power Management (PM) to device with SLI-3 interface spec. When PM 11268 * invokes this method, it restores the device's PCI config space state and 11269 * fully reinitializes the device and brings it online. Note that as the 11270 * driver implements the minimum PM requirements to a power-aware driver's 11271 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 11272 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 11273 * driver will fully reinitialize its device during resume() method call, 11274 * the device will be set to PCI_D0 directly in PCI config space before 11275 * restoring the state. 11276 * 11277 * Return code 11278 * 0 - driver suspended the device 11279 * Error otherwise 11280 **/ 11281 static int 11282 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 11283 { 11284 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11285 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11286 uint32_t intr_mode; 11287 int error; 11288 11289 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11290 "0452 PCI device Power Management resume.\n"); 11291 11292 /* Restore device state from PCI config space */ 11293 pci_set_power_state(pdev, PCI_D0); 11294 pci_restore_state(pdev); 11295 11296 /* 11297 * As the new kernel behavior of pci_restore_state() API call clears 11298 * device saved_state flag, need to save the restored state again. 11299 */ 11300 pci_save_state(pdev); 11301 11302 if (pdev->is_busmaster) 11303 pci_set_master(pdev); 11304 11305 /* Startup the kernel thread for this host adapter. */ 11306 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11307 "lpfc_worker_%d", phba->brd_no); 11308 if (IS_ERR(phba->worker_thread)) { 11309 error = PTR_ERR(phba->worker_thread); 11310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11311 "0434 PM resume failed to start worker " 11312 "thread: error=x%x.\n", error); 11313 return error; 11314 } 11315 11316 /* Configure and enable interrupt */ 11317 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 11318 if (intr_mode == LPFC_INTR_ERROR) { 11319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11320 "0430 PM resume Failed to enable interrupt\n"); 11321 return -EIO; 11322 } else 11323 phba->intr_mode = intr_mode; 11324 11325 /* Restart HBA and bring it online */ 11326 lpfc_sli_brdrestart(phba); 11327 lpfc_online(phba); 11328 11329 /* Log the current active interrupt mode */ 11330 lpfc_log_intr_mode(phba, phba->intr_mode); 11331 11332 return 0; 11333 } 11334 11335 /** 11336 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 11337 * @phba: pointer to lpfc hba data structure. 11338 * 11339 * This routine is called to prepare the SLI3 device for PCI slot recover. It 11340 * aborts all the outstanding SCSI I/Os to the pci device. 11341 **/ 11342 static void 11343 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 11344 { 11345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11346 "2723 PCI channel I/O abort preparing for recovery\n"); 11347 11348 /* 11349 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11350 * and let the SCSI mid-layer to retry them to recover. 11351 */ 11352 lpfc_sli_abort_fcp_rings(phba); 11353 } 11354 11355 /** 11356 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 11357 * @phba: pointer to lpfc hba data structure. 11358 * 11359 * This routine is called to prepare the SLI3 device for PCI slot reset. It 11360 * disables the device interrupt and pci device, and aborts the internal FCP 11361 * pending I/Os. 11362 **/ 11363 static void 11364 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 11365 { 11366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11367 "2710 PCI channel disable preparing for reset\n"); 11368 11369 /* Block any management I/Os to the device */ 11370 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 11371 11372 /* Block all SCSI devices' I/Os on the host */ 11373 lpfc_scsi_dev_block(phba); 11374 11375 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11376 lpfc_sli_flush_fcp_rings(phba); 11377 11378 /* stop all timers */ 11379 lpfc_stop_hba_timers(phba); 11380 11381 /* Disable interrupt and pci device */ 11382 lpfc_sli_disable_intr(phba); 11383 pci_disable_device(phba->pcidev); 11384 } 11385 11386 /** 11387 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 11388 * @phba: pointer to lpfc hba data structure. 11389 * 11390 * This routine is called to prepare the SLI3 device for PCI slot permanently 11391 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11392 * pending I/Os. 11393 **/ 11394 static void 11395 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11396 { 11397 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11398 "2711 PCI channel permanent disable for failure\n"); 11399 /* Block all SCSI devices' I/Os on the host */ 11400 lpfc_scsi_dev_block(phba); 11401 11402 /* stop all timers */ 11403 lpfc_stop_hba_timers(phba); 11404 11405 /* Clean up all driver's outstanding SCSI I/Os */ 11406 lpfc_sli_flush_fcp_rings(phba); 11407 } 11408 11409 /** 11410 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 11411 * @pdev: pointer to PCI device. 11412 * @state: the current PCI connection state. 11413 * 11414 * This routine is called from the PCI subsystem for I/O error handling to 11415 * device with SLI-3 interface spec. This function is called by the PCI 11416 * subsystem after a PCI bus error affecting this device has been detected. 11417 * When this function is invoked, it will need to stop all the I/Os and 11418 * interrupt(s) to the device. Once that is done, it will return 11419 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 11420 * as desired. 11421 * 11422 * Return codes 11423 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 11424 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11425 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11426 **/ 11427 static pci_ers_result_t 11428 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 11429 { 11430 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11431 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11432 11433 switch (state) { 11434 case pci_channel_io_normal: 11435 /* Non-fatal error, prepare for recovery */ 11436 lpfc_sli_prep_dev_for_recover(phba); 11437 return PCI_ERS_RESULT_CAN_RECOVER; 11438 case pci_channel_io_frozen: 11439 /* Fatal error, prepare for slot reset */ 11440 lpfc_sli_prep_dev_for_reset(phba); 11441 return PCI_ERS_RESULT_NEED_RESET; 11442 case pci_channel_io_perm_failure: 11443 /* Permanent failure, prepare for device down */ 11444 lpfc_sli_prep_dev_for_perm_failure(phba); 11445 return PCI_ERS_RESULT_DISCONNECT; 11446 default: 11447 /* Unknown state, prepare and request slot reset */ 11448 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11449 "0472 Unknown PCI error state: x%x\n", state); 11450 lpfc_sli_prep_dev_for_reset(phba); 11451 return PCI_ERS_RESULT_NEED_RESET; 11452 } 11453 } 11454 11455 /** 11456 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 11457 * @pdev: pointer to PCI device. 11458 * 11459 * This routine is called from the PCI subsystem for error handling to 11460 * device with SLI-3 interface spec. This is called after PCI bus has been 11461 * reset to restart the PCI card from scratch, as if from a cold-boot. 11462 * During the PCI subsystem error recovery, after driver returns 11463 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11464 * recovery and then call this routine before calling the .resume method 11465 * to recover the device. This function will initialize the HBA device, 11466 * enable the interrupt, but it will just put the HBA to offline state 11467 * without passing any I/O traffic. 11468 * 11469 * Return codes 11470 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11471 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11472 */ 11473 static pci_ers_result_t 11474 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 11475 { 11476 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11477 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11478 struct lpfc_sli *psli = &phba->sli; 11479 uint32_t intr_mode; 11480 11481 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11482 if (pci_enable_device_mem(pdev)) { 11483 printk(KERN_ERR "lpfc: Cannot re-enable " 11484 "PCI device after reset.\n"); 11485 return PCI_ERS_RESULT_DISCONNECT; 11486 } 11487 11488 pci_restore_state(pdev); 11489 11490 /* 11491 * As the new kernel behavior of pci_restore_state() API call clears 11492 * device saved_state flag, need to save the restored state again. 11493 */ 11494 pci_save_state(pdev); 11495 11496 if (pdev->is_busmaster) 11497 pci_set_master(pdev); 11498 11499 spin_lock_irq(&phba->hbalock); 11500 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11501 spin_unlock_irq(&phba->hbalock); 11502 11503 /* Configure and enable interrupt */ 11504 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 11505 if (intr_mode == LPFC_INTR_ERROR) { 11506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11507 "0427 Cannot re-enable interrupt after " 11508 "slot reset.\n"); 11509 return PCI_ERS_RESULT_DISCONNECT; 11510 } else 11511 phba->intr_mode = intr_mode; 11512 11513 /* Take device offline, it will perform cleanup */ 11514 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11515 lpfc_offline(phba); 11516 lpfc_sli_brdrestart(phba); 11517 11518 /* Log the current active interrupt mode */ 11519 lpfc_log_intr_mode(phba, phba->intr_mode); 11520 11521 return PCI_ERS_RESULT_RECOVERED; 11522 } 11523 11524 /** 11525 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 11526 * @pdev: pointer to PCI device 11527 * 11528 * This routine is called from the PCI subsystem for error handling to device 11529 * with SLI-3 interface spec. It is called when kernel error recovery tells 11530 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11531 * error recovery. After this call, traffic can start to flow from this device 11532 * again. 11533 */ 11534 static void 11535 lpfc_io_resume_s3(struct pci_dev *pdev) 11536 { 11537 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11538 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11539 11540 /* Bring device online, it will be no-op for non-fatal error resume */ 11541 lpfc_online(phba); 11542 } 11543 11544 /** 11545 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 11546 * @phba: pointer to lpfc hba data structure. 11547 * 11548 * returns the number of ELS/CT IOCBs to reserve 11549 **/ 11550 int 11551 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 11552 { 11553 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 11554 11555 if (phba->sli_rev == LPFC_SLI_REV4) { 11556 if (max_xri <= 100) 11557 return 10; 11558 else if (max_xri <= 256) 11559 return 25; 11560 else if (max_xri <= 512) 11561 return 50; 11562 else if (max_xri <= 1024) 11563 return 100; 11564 else if (max_xri <= 1536) 11565 return 150; 11566 else if (max_xri <= 2048) 11567 return 200; 11568 else 11569 return 250; 11570 } else 11571 return 0; 11572 } 11573 11574 /** 11575 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11576 * @phba: pointer to lpfc hba data structure. 11577 * 11578 * returns the number of ELS/CT + NVMET IOCBs to reserve 11579 **/ 11580 int 11581 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11582 { 11583 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11584 11585 if (phba->nvmet_support) 11586 max_xri += LPFC_NVMET_BUF_POST; 11587 return max_xri; 11588 } 11589 11590 11591 static void 11592 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset, 11593 uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize, 11594 const struct firmware *fw) 11595 { 11596 if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) || 11597 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC && 11598 magic_number != MAGIC_NUMER_G6) || 11599 (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC && 11600 magic_number != MAGIC_NUMER_G7)) 11601 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11602 "3030 This firmware version is not supported on " 11603 "this HBA model. Device:%x Magic:%x Type:%x " 11604 "ID:%x Size %d %zd\n", 11605 phba->pcidev->device, magic_number, ftype, fid, 11606 fsize, fw->size); 11607 else 11608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11609 "3022 FW Download failed. Device:%x Magic:%x Type:%x " 11610 "ID:%x Size %d %zd\n", 11611 phba->pcidev->device, magic_number, ftype, fid, 11612 fsize, fw->size); 11613 } 11614 11615 11616 /** 11617 * lpfc_write_firmware - attempt to write a firmware image to the port 11618 * @fw: pointer to firmware image returned from request_firmware. 11619 * @phba: pointer to lpfc hba data structure. 11620 * 11621 **/ 11622 static void 11623 lpfc_write_firmware(const struct firmware *fw, void *context) 11624 { 11625 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11626 char fwrev[FW_REV_STR_SIZE]; 11627 struct lpfc_grp_hdr *image; 11628 struct list_head dma_buffer_list; 11629 int i, rc = 0; 11630 struct lpfc_dmabuf *dmabuf, *next; 11631 uint32_t offset = 0, temp_offset = 0; 11632 uint32_t magic_number, ftype, fid, fsize; 11633 11634 /* It can be null in no-wait mode, sanity check */ 11635 if (!fw) { 11636 rc = -ENXIO; 11637 goto out; 11638 } 11639 image = (struct lpfc_grp_hdr *)fw->data; 11640 11641 magic_number = be32_to_cpu(image->magic_number); 11642 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11643 fid = bf_get_be32(lpfc_grp_hdr_id, image); 11644 fsize = be32_to_cpu(image->size); 11645 11646 INIT_LIST_HEAD(&dma_buffer_list); 11647 lpfc_decode_firmware_rev(phba, fwrev, 1); 11648 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11650 "3023 Updating Firmware, Current Version:%s " 11651 "New Version:%s\n", 11652 fwrev, image->revision); 11653 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11654 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11655 GFP_KERNEL); 11656 if (!dmabuf) { 11657 rc = -ENOMEM; 11658 goto release_out; 11659 } 11660 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11661 SLI4_PAGE_SIZE, 11662 &dmabuf->phys, 11663 GFP_KERNEL); 11664 if (!dmabuf->virt) { 11665 kfree(dmabuf); 11666 rc = -ENOMEM; 11667 goto release_out; 11668 } 11669 list_add_tail(&dmabuf->list, &dma_buffer_list); 11670 } 11671 while (offset < fw->size) { 11672 temp_offset = offset; 11673 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11674 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11675 memcpy(dmabuf->virt, 11676 fw->data + temp_offset, 11677 fw->size - temp_offset); 11678 temp_offset = fw->size; 11679 break; 11680 } 11681 memcpy(dmabuf->virt, fw->data + temp_offset, 11682 SLI4_PAGE_SIZE); 11683 temp_offset += SLI4_PAGE_SIZE; 11684 } 11685 rc = lpfc_wr_object(phba, &dma_buffer_list, 11686 (fw->size - offset), &offset); 11687 if (rc) { 11688 lpfc_log_write_firmware_error(phba, offset, 11689 magic_number, ftype, fid, fsize, fw); 11690 goto release_out; 11691 } 11692 } 11693 rc = offset; 11694 } else 11695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11696 "3029 Skipped Firmware update, Current " 11697 "Version:%s New Version:%s\n", 11698 fwrev, image->revision); 11699 11700 release_out: 11701 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11702 list_del(&dmabuf->list); 11703 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11704 dmabuf->virt, dmabuf->phys); 11705 kfree(dmabuf); 11706 } 11707 release_firmware(fw); 11708 out: 11709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11710 "3024 Firmware update done: %d.\n", rc); 11711 return; 11712 } 11713 11714 /** 11715 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11716 * @phba: pointer to lpfc hba data structure. 11717 * 11718 * This routine is called to perform Linux generic firmware upgrade on device 11719 * that supports such feature. 11720 **/ 11721 int 11722 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11723 { 11724 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11725 int ret; 11726 const struct firmware *fw; 11727 11728 /* Only supported on SLI4 interface type 2 for now */ 11729 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < 11730 LPFC_SLI_INTF_IF_TYPE_2) 11731 return -EPERM; 11732 11733 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11734 11735 if (fw_upgrade == INT_FW_UPGRADE) { 11736 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11737 file_name, &phba->pcidev->dev, 11738 GFP_KERNEL, (void *)phba, 11739 lpfc_write_firmware); 11740 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11741 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11742 if (!ret) 11743 lpfc_write_firmware(fw, (void *)phba); 11744 } else { 11745 ret = -EINVAL; 11746 } 11747 11748 return ret; 11749 } 11750 11751 /** 11752 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11753 * @pdev: pointer to PCI device 11754 * @pid: pointer to PCI device identifier 11755 * 11756 * This routine is called from the kernel's PCI subsystem to device with 11757 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11758 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11759 * information of the device and driver to see if the driver state that it 11760 * can support this kind of device. If the match is successful, the driver 11761 * core invokes this routine. If this routine determines it can claim the HBA, 11762 * it does all the initialization that it needs to do to handle the HBA 11763 * properly. 11764 * 11765 * Return code 11766 * 0 - driver can claim the device 11767 * negative value - driver can not claim the device 11768 **/ 11769 static int 11770 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11771 { 11772 struct lpfc_hba *phba; 11773 struct lpfc_vport *vport = NULL; 11774 struct Scsi_Host *shost = NULL; 11775 int error; 11776 uint32_t cfg_mode, intr_mode; 11777 11778 /* Allocate memory for HBA structure */ 11779 phba = lpfc_hba_alloc(pdev); 11780 if (!phba) 11781 return -ENOMEM; 11782 11783 /* Perform generic PCI device enabling operation */ 11784 error = lpfc_enable_pci_dev(phba); 11785 if (error) 11786 goto out_free_phba; 11787 11788 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11789 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11790 if (error) 11791 goto out_disable_pci_dev; 11792 11793 /* Set up SLI-4 specific device PCI memory space */ 11794 error = lpfc_sli4_pci_mem_setup(phba); 11795 if (error) { 11796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11797 "1410 Failed to set up pci memory space.\n"); 11798 goto out_disable_pci_dev; 11799 } 11800 11801 /* Set up SLI-4 Specific device driver resources */ 11802 error = lpfc_sli4_driver_resource_setup(phba); 11803 if (error) { 11804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11805 "1412 Failed to set up driver resource.\n"); 11806 goto out_unset_pci_mem_s4; 11807 } 11808 11809 INIT_LIST_HEAD(&phba->active_rrq_list); 11810 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11811 11812 /* Set up common device driver resources */ 11813 error = lpfc_setup_driver_resource_phase2(phba); 11814 if (error) { 11815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11816 "1414 Failed to set up driver resource.\n"); 11817 goto out_unset_driver_resource_s4; 11818 } 11819 11820 /* Get the default values for Model Name and Description */ 11821 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11822 11823 /* Create SCSI host to the physical port */ 11824 error = lpfc_create_shost(phba); 11825 if (error) { 11826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11827 "1415 Failed to create scsi host.\n"); 11828 goto out_unset_driver_resource; 11829 } 11830 11831 /* Configure sysfs attributes */ 11832 vport = phba->pport; 11833 error = lpfc_alloc_sysfs_attr(vport); 11834 if (error) { 11835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11836 "1416 Failed to allocate sysfs attr\n"); 11837 goto out_destroy_shost; 11838 } 11839 11840 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11841 /* Now, trying to enable interrupt and bring up the device */ 11842 cfg_mode = phba->cfg_use_msi; 11843 11844 /* Put device to a known state before enabling interrupt */ 11845 lpfc_stop_port(phba); 11846 11847 /* Configure and enable interrupt */ 11848 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11849 if (intr_mode == LPFC_INTR_ERROR) { 11850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11851 "0426 Failed to enable interrupt.\n"); 11852 error = -ENODEV; 11853 goto out_free_sysfs_attr; 11854 } 11855 /* Default to single EQ for non-MSI-X */ 11856 if (phba->intr_type != MSIX) { 11857 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11858 phba->cfg_fcp_io_channel = 1; 11859 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11860 phba->cfg_nvme_io_channel = 1; 11861 if (phba->nvmet_support) 11862 phba->cfg_nvmet_mrq = 1; 11863 } 11864 phba->io_channel_irqs = 1; 11865 } 11866 11867 /* Set up SLI-4 HBA */ 11868 if (lpfc_sli4_hba_setup(phba)) { 11869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11870 "1421 Failed to set up hba\n"); 11871 error = -ENODEV; 11872 goto out_disable_intr; 11873 } 11874 11875 /* Log the current active interrupt mode */ 11876 phba->intr_mode = intr_mode; 11877 lpfc_log_intr_mode(phba, intr_mode); 11878 11879 /* Perform post initialization setup */ 11880 lpfc_post_init_setup(phba); 11881 11882 /* NVME support in FW earlier in the driver load corrects the 11883 * FC4 type making a check for nvme_support unnecessary. 11884 */ 11885 if ((phba->nvmet_support == 0) && 11886 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11887 /* Create NVME binding with nvme_fc_transport. This 11888 * ensures the vport is initialized. If the localport 11889 * create fails, it should not unload the driver to 11890 * support field issues. 11891 */ 11892 error = lpfc_nvme_create_localport(vport); 11893 if (error) { 11894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11895 "6004 NVME registration failed, " 11896 "error x%x\n", 11897 error); 11898 } 11899 } 11900 11901 /* check for firmware upgrade or downgrade */ 11902 if (phba->cfg_request_firmware_upgrade) 11903 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11904 11905 /* Check if there are static vports to be created. */ 11906 lpfc_create_static_vport(phba); 11907 11908 /* Enable RAS FW log support */ 11909 lpfc_sli4_ras_setup(phba); 11910 11911 return 0; 11912 11913 out_disable_intr: 11914 lpfc_sli4_disable_intr(phba); 11915 out_free_sysfs_attr: 11916 lpfc_free_sysfs_attr(vport); 11917 out_destroy_shost: 11918 lpfc_destroy_shost(phba); 11919 out_unset_driver_resource: 11920 lpfc_unset_driver_resource_phase2(phba); 11921 out_unset_driver_resource_s4: 11922 lpfc_sli4_driver_resource_unset(phba); 11923 out_unset_pci_mem_s4: 11924 lpfc_sli4_pci_mem_unset(phba); 11925 out_disable_pci_dev: 11926 lpfc_disable_pci_dev(phba); 11927 if (shost) 11928 scsi_host_put(shost); 11929 out_free_phba: 11930 lpfc_hba_free(phba); 11931 return error; 11932 } 11933 11934 /** 11935 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11936 * @pdev: pointer to PCI device 11937 * 11938 * This routine is called from the kernel's PCI subsystem to device with 11939 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11940 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11941 * device to be removed from the PCI subsystem properly. 11942 **/ 11943 static void 11944 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11945 { 11946 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11947 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11948 struct lpfc_vport **vports; 11949 struct lpfc_hba *phba = vport->phba; 11950 int i; 11951 11952 /* Mark the device unloading flag */ 11953 spin_lock_irq(&phba->hbalock); 11954 vport->load_flag |= FC_UNLOADING; 11955 spin_unlock_irq(&phba->hbalock); 11956 11957 /* Free the HBA sysfs attributes */ 11958 lpfc_free_sysfs_attr(vport); 11959 11960 /* Release all the vports against this physical port */ 11961 vports = lpfc_create_vport_work_array(phba); 11962 if (vports != NULL) 11963 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11964 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11965 continue; 11966 fc_vport_terminate(vports[i]->fc_vport); 11967 } 11968 lpfc_destroy_vport_work_array(phba, vports); 11969 11970 /* Remove FC host and then SCSI host with the physical port */ 11971 fc_remove_host(shost); 11972 scsi_remove_host(shost); 11973 11974 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11975 * localports are destroyed after to cleanup all transport memory. 11976 */ 11977 lpfc_cleanup(vport); 11978 lpfc_nvmet_destroy_targetport(phba); 11979 lpfc_nvme_destroy_localport(vport); 11980 11981 /* 11982 * Bring down the SLI Layer. This step disables all interrupts, 11983 * clears the rings, discards all mailbox commands, and resets 11984 * the HBA FCoE function. 11985 */ 11986 lpfc_debugfs_terminate(vport); 11987 lpfc_sli4_hba_unset(phba); 11988 11989 lpfc_stop_hba_timers(phba); 11990 spin_lock_irq(&phba->port_list_lock); 11991 list_del_init(&vport->listentry); 11992 spin_unlock_irq(&phba->port_list_lock); 11993 11994 /* Perform scsi free before driver resource_unset since scsi 11995 * buffers are released to their corresponding pools here. 11996 */ 11997 lpfc_scsi_free(phba); 11998 lpfc_nvme_free(phba); 11999 lpfc_free_iocb_list(phba); 12000 12001 lpfc_unset_driver_resource_phase2(phba); 12002 lpfc_sli4_driver_resource_unset(phba); 12003 12004 /* Unmap adapter Control and Doorbell registers */ 12005 lpfc_sli4_pci_mem_unset(phba); 12006 12007 /* Release PCI resources and disable device's PCI function */ 12008 scsi_host_put(shost); 12009 lpfc_disable_pci_dev(phba); 12010 12011 /* Finally, free the driver's device data structure */ 12012 lpfc_hba_free(phba); 12013 12014 return; 12015 } 12016 12017 /** 12018 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 12019 * @pdev: pointer to PCI device 12020 * @msg: power management message 12021 * 12022 * This routine is called from the kernel's PCI subsystem to support system 12023 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 12024 * this method, it quiesces the device by stopping the driver's worker 12025 * thread for the device, turning off device's interrupt and DMA, and bring 12026 * the device offline. Note that as the driver implements the minimum PM 12027 * requirements to a power-aware driver's PM support for suspend/resume -- all 12028 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 12029 * method call will be treated as SUSPEND and the driver will fully 12030 * reinitialize its device during resume() method call, the driver will set 12031 * device to PCI_D3hot state in PCI config space instead of setting it 12032 * according to the @msg provided by the PM. 12033 * 12034 * Return code 12035 * 0 - driver suspended the device 12036 * Error otherwise 12037 **/ 12038 static int 12039 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 12040 { 12041 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12042 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12043 12044 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 12045 "2843 PCI device Power Management suspend.\n"); 12046 12047 /* Bring down the device */ 12048 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 12049 lpfc_offline(phba); 12050 kthread_stop(phba->worker_thread); 12051 12052 /* Disable interrupt from device */ 12053 lpfc_sli4_disable_intr(phba); 12054 lpfc_sli4_queue_destroy(phba); 12055 12056 /* Save device state to PCI config space */ 12057 pci_save_state(pdev); 12058 pci_set_power_state(pdev, PCI_D3hot); 12059 12060 return 0; 12061 } 12062 12063 /** 12064 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 12065 * @pdev: pointer to PCI device 12066 * 12067 * This routine is called from the kernel's PCI subsystem to support system 12068 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 12069 * this method, it restores the device's PCI config space state and fully 12070 * reinitializes the device and brings it online. Note that as the driver 12071 * implements the minimum PM requirements to a power-aware driver's PM for 12072 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 12073 * to the suspend() method call will be treated as SUSPEND and the driver 12074 * will fully reinitialize its device during resume() method call, the device 12075 * will be set to PCI_D0 directly in PCI config space before restoring the 12076 * state. 12077 * 12078 * Return code 12079 * 0 - driver suspended the device 12080 * Error otherwise 12081 **/ 12082 static int 12083 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 12084 { 12085 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12086 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12087 uint32_t intr_mode; 12088 int error; 12089 12090 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 12091 "0292 PCI device Power Management resume.\n"); 12092 12093 /* Restore device state from PCI config space */ 12094 pci_set_power_state(pdev, PCI_D0); 12095 pci_restore_state(pdev); 12096 12097 /* 12098 * As the new kernel behavior of pci_restore_state() API call clears 12099 * device saved_state flag, need to save the restored state again. 12100 */ 12101 pci_save_state(pdev); 12102 12103 if (pdev->is_busmaster) 12104 pci_set_master(pdev); 12105 12106 /* Startup the kernel thread for this host adapter. */ 12107 phba->worker_thread = kthread_run(lpfc_do_work, phba, 12108 "lpfc_worker_%d", phba->brd_no); 12109 if (IS_ERR(phba->worker_thread)) { 12110 error = PTR_ERR(phba->worker_thread); 12111 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12112 "0293 PM resume failed to start worker " 12113 "thread: error=x%x.\n", error); 12114 return error; 12115 } 12116 12117 /* Configure and enable interrupt */ 12118 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 12119 if (intr_mode == LPFC_INTR_ERROR) { 12120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12121 "0294 PM resume Failed to enable interrupt\n"); 12122 return -EIO; 12123 } else 12124 phba->intr_mode = intr_mode; 12125 12126 /* Restart HBA and bring it online */ 12127 lpfc_sli_brdrestart(phba); 12128 lpfc_online(phba); 12129 12130 /* Log the current active interrupt mode */ 12131 lpfc_log_intr_mode(phba, phba->intr_mode); 12132 12133 return 0; 12134 } 12135 12136 /** 12137 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 12138 * @phba: pointer to lpfc hba data structure. 12139 * 12140 * This routine is called to prepare the SLI4 device for PCI slot recover. It 12141 * aborts all the outstanding SCSI I/Os to the pci device. 12142 **/ 12143 static void 12144 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 12145 { 12146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12147 "2828 PCI channel I/O abort preparing for recovery\n"); 12148 /* 12149 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 12150 * and let the SCSI mid-layer to retry them to recover. 12151 */ 12152 lpfc_sli_abort_fcp_rings(phba); 12153 } 12154 12155 /** 12156 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 12157 * @phba: pointer to lpfc hba data structure. 12158 * 12159 * This routine is called to prepare the SLI4 device for PCI slot reset. It 12160 * disables the device interrupt and pci device, and aborts the internal FCP 12161 * pending I/Os. 12162 **/ 12163 static void 12164 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 12165 { 12166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12167 "2826 PCI channel disable preparing for reset\n"); 12168 12169 /* Block any management I/Os to the device */ 12170 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 12171 12172 /* Block all SCSI devices' I/Os on the host */ 12173 lpfc_scsi_dev_block(phba); 12174 12175 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 12176 lpfc_sli_flush_fcp_rings(phba); 12177 12178 /* Flush the outstanding NVME IOs if fc4 type enabled. */ 12179 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 12180 lpfc_sli_flush_nvme_rings(phba); 12181 12182 /* stop all timers */ 12183 lpfc_stop_hba_timers(phba); 12184 12185 /* Disable interrupt and pci device */ 12186 lpfc_sli4_disable_intr(phba); 12187 lpfc_sli4_queue_destroy(phba); 12188 pci_disable_device(phba->pcidev); 12189 } 12190 12191 /** 12192 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 12193 * @phba: pointer to lpfc hba data structure. 12194 * 12195 * This routine is called to prepare the SLI4 device for PCI slot permanently 12196 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 12197 * pending I/Os. 12198 **/ 12199 static void 12200 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 12201 { 12202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12203 "2827 PCI channel permanent disable for failure\n"); 12204 12205 /* Block all SCSI devices' I/Os on the host */ 12206 lpfc_scsi_dev_block(phba); 12207 12208 /* stop all timers */ 12209 lpfc_stop_hba_timers(phba); 12210 12211 /* Clean up all driver's outstanding SCSI I/Os */ 12212 lpfc_sli_flush_fcp_rings(phba); 12213 12214 /* Flush the outstanding NVME IOs if fc4 type enabled. */ 12215 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 12216 lpfc_sli_flush_nvme_rings(phba); 12217 } 12218 12219 /** 12220 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 12221 * @pdev: pointer to PCI device. 12222 * @state: the current PCI connection state. 12223 * 12224 * This routine is called from the PCI subsystem for error handling to device 12225 * with SLI-4 interface spec. This function is called by the PCI subsystem 12226 * after a PCI bus error affecting this device has been detected. When this 12227 * function is invoked, it will need to stop all the I/Os and interrupt(s) 12228 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 12229 * for the PCI subsystem to perform proper recovery as desired. 12230 * 12231 * Return codes 12232 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 12233 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12234 **/ 12235 static pci_ers_result_t 12236 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 12237 { 12238 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12239 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12240 12241 switch (state) { 12242 case pci_channel_io_normal: 12243 /* Non-fatal error, prepare for recovery */ 12244 lpfc_sli4_prep_dev_for_recover(phba); 12245 return PCI_ERS_RESULT_CAN_RECOVER; 12246 case pci_channel_io_frozen: 12247 /* Fatal error, prepare for slot reset */ 12248 lpfc_sli4_prep_dev_for_reset(phba); 12249 return PCI_ERS_RESULT_NEED_RESET; 12250 case pci_channel_io_perm_failure: 12251 /* Permanent failure, prepare for device down */ 12252 lpfc_sli4_prep_dev_for_perm_failure(phba); 12253 return PCI_ERS_RESULT_DISCONNECT; 12254 default: 12255 /* Unknown state, prepare and request slot reset */ 12256 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12257 "2825 Unknown PCI error state: x%x\n", state); 12258 lpfc_sli4_prep_dev_for_reset(phba); 12259 return PCI_ERS_RESULT_NEED_RESET; 12260 } 12261 } 12262 12263 /** 12264 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 12265 * @pdev: pointer to PCI device. 12266 * 12267 * This routine is called from the PCI subsystem for error handling to device 12268 * with SLI-4 interface spec. It is called after PCI bus has been reset to 12269 * restart the PCI card from scratch, as if from a cold-boot. During the 12270 * PCI subsystem error recovery, after the driver returns 12271 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 12272 * recovery and then call this routine before calling the .resume method to 12273 * recover the device. This function will initialize the HBA device, enable 12274 * the interrupt, but it will just put the HBA to offline state without 12275 * passing any I/O traffic. 12276 * 12277 * Return codes 12278 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 12279 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12280 */ 12281 static pci_ers_result_t 12282 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 12283 { 12284 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12285 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12286 struct lpfc_sli *psli = &phba->sli; 12287 uint32_t intr_mode; 12288 12289 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 12290 if (pci_enable_device_mem(pdev)) { 12291 printk(KERN_ERR "lpfc: Cannot re-enable " 12292 "PCI device after reset.\n"); 12293 return PCI_ERS_RESULT_DISCONNECT; 12294 } 12295 12296 pci_restore_state(pdev); 12297 12298 /* 12299 * As the new kernel behavior of pci_restore_state() API call clears 12300 * device saved_state flag, need to save the restored state again. 12301 */ 12302 pci_save_state(pdev); 12303 12304 if (pdev->is_busmaster) 12305 pci_set_master(pdev); 12306 12307 spin_lock_irq(&phba->hbalock); 12308 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 12309 spin_unlock_irq(&phba->hbalock); 12310 12311 /* Configure and enable interrupt */ 12312 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 12313 if (intr_mode == LPFC_INTR_ERROR) { 12314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12315 "2824 Cannot re-enable interrupt after " 12316 "slot reset.\n"); 12317 return PCI_ERS_RESULT_DISCONNECT; 12318 } else 12319 phba->intr_mode = intr_mode; 12320 12321 /* Log the current active interrupt mode */ 12322 lpfc_log_intr_mode(phba, phba->intr_mode); 12323 12324 return PCI_ERS_RESULT_RECOVERED; 12325 } 12326 12327 /** 12328 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 12329 * @pdev: pointer to PCI device 12330 * 12331 * This routine is called from the PCI subsystem for error handling to device 12332 * with SLI-4 interface spec. It is called when kernel error recovery tells 12333 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 12334 * error recovery. After this call, traffic can start to flow from this device 12335 * again. 12336 **/ 12337 static void 12338 lpfc_io_resume_s4(struct pci_dev *pdev) 12339 { 12340 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12341 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12342 12343 /* 12344 * In case of slot reset, as function reset is performed through 12345 * mailbox command which needs DMA to be enabled, this operation 12346 * has to be moved to the io resume phase. Taking device offline 12347 * will perform the necessary cleanup. 12348 */ 12349 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 12350 /* Perform device reset */ 12351 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 12352 lpfc_offline(phba); 12353 lpfc_sli_brdrestart(phba); 12354 /* Bring the device back online */ 12355 lpfc_online(phba); 12356 } 12357 } 12358 12359 /** 12360 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 12361 * @pdev: pointer to PCI device 12362 * @pid: pointer to PCI device identifier 12363 * 12364 * This routine is to be registered to the kernel's PCI subsystem. When an 12365 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 12366 * at PCI device-specific information of the device and driver to see if the 12367 * driver state that it can support this kind of device. If the match is 12368 * successful, the driver core invokes this routine. This routine dispatches 12369 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 12370 * do all the initialization that it needs to do to handle the HBA device 12371 * properly. 12372 * 12373 * Return code 12374 * 0 - driver can claim the device 12375 * negative value - driver can not claim the device 12376 **/ 12377 static int 12378 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 12379 { 12380 int rc; 12381 struct lpfc_sli_intf intf; 12382 12383 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 12384 return -ENODEV; 12385 12386 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 12387 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 12388 rc = lpfc_pci_probe_one_s4(pdev, pid); 12389 else 12390 rc = lpfc_pci_probe_one_s3(pdev, pid); 12391 12392 return rc; 12393 } 12394 12395 /** 12396 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 12397 * @pdev: pointer to PCI device 12398 * 12399 * This routine is to be registered to the kernel's PCI subsystem. When an 12400 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 12401 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 12402 * remove routine, which will perform all the necessary cleanup for the 12403 * device to be removed from the PCI subsystem properly. 12404 **/ 12405 static void 12406 lpfc_pci_remove_one(struct pci_dev *pdev) 12407 { 12408 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12409 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12410 12411 switch (phba->pci_dev_grp) { 12412 case LPFC_PCI_DEV_LP: 12413 lpfc_pci_remove_one_s3(pdev); 12414 break; 12415 case LPFC_PCI_DEV_OC: 12416 lpfc_pci_remove_one_s4(pdev); 12417 break; 12418 default: 12419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12420 "1424 Invalid PCI device group: 0x%x\n", 12421 phba->pci_dev_grp); 12422 break; 12423 } 12424 return; 12425 } 12426 12427 /** 12428 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 12429 * @pdev: pointer to PCI device 12430 * @msg: power management message 12431 * 12432 * This routine is to be registered to the kernel's PCI subsystem to support 12433 * system Power Management (PM). When PM invokes this method, it dispatches 12434 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 12435 * suspend the device. 12436 * 12437 * Return code 12438 * 0 - driver suspended the device 12439 * Error otherwise 12440 **/ 12441 static int 12442 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 12443 { 12444 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12445 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12446 int rc = -ENODEV; 12447 12448 switch (phba->pci_dev_grp) { 12449 case LPFC_PCI_DEV_LP: 12450 rc = lpfc_pci_suspend_one_s3(pdev, msg); 12451 break; 12452 case LPFC_PCI_DEV_OC: 12453 rc = lpfc_pci_suspend_one_s4(pdev, msg); 12454 break; 12455 default: 12456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12457 "1425 Invalid PCI device group: 0x%x\n", 12458 phba->pci_dev_grp); 12459 break; 12460 } 12461 return rc; 12462 } 12463 12464 /** 12465 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 12466 * @pdev: pointer to PCI device 12467 * 12468 * This routine is to be registered to the kernel's PCI subsystem to support 12469 * system Power Management (PM). When PM invokes this method, it dispatches 12470 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 12471 * resume the device. 12472 * 12473 * Return code 12474 * 0 - driver suspended the device 12475 * Error otherwise 12476 **/ 12477 static int 12478 lpfc_pci_resume_one(struct pci_dev *pdev) 12479 { 12480 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12481 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12482 int rc = -ENODEV; 12483 12484 switch (phba->pci_dev_grp) { 12485 case LPFC_PCI_DEV_LP: 12486 rc = lpfc_pci_resume_one_s3(pdev); 12487 break; 12488 case LPFC_PCI_DEV_OC: 12489 rc = lpfc_pci_resume_one_s4(pdev); 12490 break; 12491 default: 12492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12493 "1426 Invalid PCI device group: 0x%x\n", 12494 phba->pci_dev_grp); 12495 break; 12496 } 12497 return rc; 12498 } 12499 12500 /** 12501 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 12502 * @pdev: pointer to PCI device. 12503 * @state: the current PCI connection state. 12504 * 12505 * This routine is registered to the PCI subsystem for error handling. This 12506 * function is called by the PCI subsystem after a PCI bus error affecting 12507 * this device has been detected. When this routine is invoked, it dispatches 12508 * the action to the proper SLI-3 or SLI-4 device error detected handling 12509 * routine, which will perform the proper error detected operation. 12510 * 12511 * Return codes 12512 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 12513 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12514 **/ 12515 static pci_ers_result_t 12516 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 12517 { 12518 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12519 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12520 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 12521 12522 switch (phba->pci_dev_grp) { 12523 case LPFC_PCI_DEV_LP: 12524 rc = lpfc_io_error_detected_s3(pdev, state); 12525 break; 12526 case LPFC_PCI_DEV_OC: 12527 rc = lpfc_io_error_detected_s4(pdev, state); 12528 break; 12529 default: 12530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12531 "1427 Invalid PCI device group: 0x%x\n", 12532 phba->pci_dev_grp); 12533 break; 12534 } 12535 return rc; 12536 } 12537 12538 /** 12539 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 12540 * @pdev: pointer to PCI device. 12541 * 12542 * This routine is registered to the PCI subsystem for error handling. This 12543 * function is called after PCI bus has been reset to restart the PCI card 12544 * from scratch, as if from a cold-boot. When this routine is invoked, it 12545 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 12546 * routine, which will perform the proper device reset. 12547 * 12548 * Return codes 12549 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 12550 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 12551 **/ 12552 static pci_ers_result_t 12553 lpfc_io_slot_reset(struct pci_dev *pdev) 12554 { 12555 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12556 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12557 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 12558 12559 switch (phba->pci_dev_grp) { 12560 case LPFC_PCI_DEV_LP: 12561 rc = lpfc_io_slot_reset_s3(pdev); 12562 break; 12563 case LPFC_PCI_DEV_OC: 12564 rc = lpfc_io_slot_reset_s4(pdev); 12565 break; 12566 default: 12567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12568 "1428 Invalid PCI device group: 0x%x\n", 12569 phba->pci_dev_grp); 12570 break; 12571 } 12572 return rc; 12573 } 12574 12575 /** 12576 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 12577 * @pdev: pointer to PCI device 12578 * 12579 * This routine is registered to the PCI subsystem for error handling. It 12580 * is called when kernel error recovery tells the lpfc driver that it is 12581 * OK to resume normal PCI operation after PCI bus error recovery. When 12582 * this routine is invoked, it dispatches the action to the proper SLI-3 12583 * or SLI-4 device io_resume routine, which will resume the device operation. 12584 **/ 12585 static void 12586 lpfc_io_resume(struct pci_dev *pdev) 12587 { 12588 struct Scsi_Host *shost = pci_get_drvdata(pdev); 12589 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 12590 12591 switch (phba->pci_dev_grp) { 12592 case LPFC_PCI_DEV_LP: 12593 lpfc_io_resume_s3(pdev); 12594 break; 12595 case LPFC_PCI_DEV_OC: 12596 lpfc_io_resume_s4(pdev); 12597 break; 12598 default: 12599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12600 "1429 Invalid PCI device group: 0x%x\n", 12601 phba->pci_dev_grp); 12602 break; 12603 } 12604 return; 12605 } 12606 12607 /** 12608 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12609 * @phba: pointer to lpfc hba data structure. 12610 * 12611 * This routine checks to see if OAS is supported for this adapter. If 12612 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12613 * the enable oas flag is cleared and the pool created for OAS device data 12614 * is destroyed. 12615 * 12616 **/ 12617 void 12618 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12619 { 12620 12621 if (!phba->cfg_EnableXLane) 12622 return; 12623 12624 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12625 phba->cfg_fof = 1; 12626 } else { 12627 phba->cfg_fof = 0; 12628 if (phba->device_data_mem_pool) 12629 mempool_destroy(phba->device_data_mem_pool); 12630 phba->device_data_mem_pool = NULL; 12631 } 12632 12633 return; 12634 } 12635 12636 /** 12637 * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter 12638 * @phba: pointer to lpfc hba data structure. 12639 * 12640 * This routine checks to see if RAS is supported by the adapter. Check the 12641 * function through which RAS support enablement is to be done. 12642 **/ 12643 void 12644 lpfc_sli4_ras_init(struct lpfc_hba *phba) 12645 { 12646 switch (phba->pcidev->device) { 12647 case PCI_DEVICE_ID_LANCER_G6_FC: 12648 case PCI_DEVICE_ID_LANCER_G7_FC: 12649 phba->ras_fwlog.ras_hwsupport = true; 12650 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) && 12651 phba->cfg_ras_fwlog_buffsize) 12652 phba->ras_fwlog.ras_enabled = true; 12653 else 12654 phba->ras_fwlog.ras_enabled = false; 12655 break; 12656 default: 12657 phba->ras_fwlog.ras_hwsupport = false; 12658 } 12659 } 12660 12661 /** 12662 * lpfc_fof_queue_setup - Set up all the fof queues 12663 * @phba: pointer to lpfc hba data structure. 12664 * 12665 * This routine is invoked to set up all the fof queues for the FC HBA 12666 * operation. 12667 * 12668 * Return codes 12669 * 0 - successful 12670 * -ENOMEM - No available memory 12671 **/ 12672 int 12673 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12674 { 12675 struct lpfc_sli_ring *pring; 12676 int rc; 12677 12678 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12679 if (rc) 12680 return -ENOMEM; 12681 12682 if (phba->cfg_fof) { 12683 12684 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12685 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12686 if (rc) 12687 goto out_oas_cq; 12688 12689 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12690 phba->sli4_hba.oas_cq, LPFC_FCP); 12691 if (rc) 12692 goto out_oas_wq; 12693 12694 /* Bind this CQ/WQ to the NVME ring */ 12695 pring = phba->sli4_hba.oas_wq->pring; 12696 pring->sli.sli4.wqp = 12697 (void *)phba->sli4_hba.oas_wq; 12698 phba->sli4_hba.oas_cq->pring = pring; 12699 } 12700 12701 return 0; 12702 12703 out_oas_wq: 12704 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12705 out_oas_cq: 12706 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12707 return rc; 12708 12709 } 12710 12711 /** 12712 * lpfc_fof_queue_create - Create all the fof queues 12713 * @phba: pointer to lpfc hba data structure. 12714 * 12715 * This routine is invoked to allocate all the fof queues for the FC HBA 12716 * operation. For each SLI4 queue type, the parameters such as queue entry 12717 * count (queue depth) shall be taken from the module parameter. For now, 12718 * we just use some constant number as place holder. 12719 * 12720 * Return codes 12721 * 0 - successful 12722 * -ENOMEM - No availble memory 12723 * -EIO - The mailbox failed to complete successfully. 12724 **/ 12725 int 12726 lpfc_fof_queue_create(struct lpfc_hba *phba) 12727 { 12728 struct lpfc_queue *qdesc; 12729 uint32_t wqesize; 12730 12731 /* Create FOF EQ */ 12732 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, 12733 phba->sli4_hba.eq_esize, 12734 phba->sli4_hba.eq_ecount); 12735 if (!qdesc) 12736 goto out_error; 12737 12738 qdesc->qe_valid = 1; 12739 phba->sli4_hba.fof_eq = qdesc; 12740 12741 if (phba->cfg_fof) { 12742 12743 /* Create OAS CQ */ 12744 if (phba->enab_exp_wqcq_pages) 12745 qdesc = lpfc_sli4_queue_alloc(phba, 12746 LPFC_EXPANDED_PAGE_SIZE, 12747 phba->sli4_hba.cq_esize, 12748 LPFC_CQE_EXP_COUNT); 12749 else 12750 qdesc = lpfc_sli4_queue_alloc(phba, 12751 LPFC_DEFAULT_PAGE_SIZE, 12752 phba->sli4_hba.cq_esize, 12753 phba->sli4_hba.cq_ecount); 12754 if (!qdesc) 12755 goto out_error; 12756 12757 qdesc->qe_valid = 1; 12758 phba->sli4_hba.oas_cq = qdesc; 12759 12760 /* Create OAS WQ */ 12761 if (phba->enab_exp_wqcq_pages) { 12762 wqesize = (phba->fcp_embed_io) ? 12763 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12764 qdesc = lpfc_sli4_queue_alloc(phba, 12765 LPFC_EXPANDED_PAGE_SIZE, 12766 wqesize, 12767 LPFC_WQE_EXP_COUNT); 12768 } else 12769 qdesc = lpfc_sli4_queue_alloc(phba, 12770 LPFC_DEFAULT_PAGE_SIZE, 12771 phba->sli4_hba.wq_esize, 12772 phba->sli4_hba.wq_ecount); 12773 12774 if (!qdesc) 12775 goto out_error; 12776 12777 phba->sli4_hba.oas_wq = qdesc; 12778 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12779 12780 } 12781 return 0; 12782 12783 out_error: 12784 lpfc_fof_queue_destroy(phba); 12785 return -ENOMEM; 12786 } 12787 12788 /** 12789 * lpfc_fof_queue_destroy - Destroy all the fof queues 12790 * @phba: pointer to lpfc hba data structure. 12791 * 12792 * This routine is invoked to release all the SLI4 queues with the FC HBA 12793 * operation. 12794 * 12795 * Return codes 12796 * 0 - successful 12797 **/ 12798 int 12799 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12800 { 12801 /* Release FOF Event queue */ 12802 if (phba->sli4_hba.fof_eq != NULL) { 12803 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12804 phba->sli4_hba.fof_eq = NULL; 12805 } 12806 12807 /* Release OAS Completion queue */ 12808 if (phba->sli4_hba.oas_cq != NULL) { 12809 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12810 phba->sli4_hba.oas_cq = NULL; 12811 } 12812 12813 /* Release OAS Work queue */ 12814 if (phba->sli4_hba.oas_wq != NULL) { 12815 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12816 phba->sli4_hba.oas_wq = NULL; 12817 } 12818 return 0; 12819 } 12820 12821 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12822 12823 static const struct pci_error_handlers lpfc_err_handler = { 12824 .error_detected = lpfc_io_error_detected, 12825 .slot_reset = lpfc_io_slot_reset, 12826 .resume = lpfc_io_resume, 12827 }; 12828 12829 static struct pci_driver lpfc_driver = { 12830 .name = LPFC_DRIVER_NAME, 12831 .id_table = lpfc_id_table, 12832 .probe = lpfc_pci_probe_one, 12833 .remove = lpfc_pci_remove_one, 12834 .shutdown = lpfc_pci_remove_one, 12835 .suspend = lpfc_pci_suspend_one, 12836 .resume = lpfc_pci_resume_one, 12837 .err_handler = &lpfc_err_handler, 12838 }; 12839 12840 static const struct file_operations lpfc_mgmt_fop = { 12841 .owner = THIS_MODULE, 12842 }; 12843 12844 static struct miscdevice lpfc_mgmt_dev = { 12845 .minor = MISC_DYNAMIC_MINOR, 12846 .name = "lpfcmgmt", 12847 .fops = &lpfc_mgmt_fop, 12848 }; 12849 12850 /** 12851 * lpfc_init - lpfc module initialization routine 12852 * 12853 * This routine is to be invoked when the lpfc module is loaded into the 12854 * kernel. The special kernel macro module_init() is used to indicate the 12855 * role of this routine to the kernel as lpfc module entry point. 12856 * 12857 * Return codes 12858 * 0 - successful 12859 * -ENOMEM - FC attach transport failed 12860 * all others - failed 12861 */ 12862 static int __init 12863 lpfc_init(void) 12864 { 12865 int error = 0; 12866 12867 printk(LPFC_MODULE_DESC "\n"); 12868 printk(LPFC_COPYRIGHT "\n"); 12869 12870 error = misc_register(&lpfc_mgmt_dev); 12871 if (error) 12872 printk(KERN_ERR "Could not register lpfcmgmt device, " 12873 "misc_register returned with status %d", error); 12874 12875 lpfc_transport_functions.vport_create = lpfc_vport_create; 12876 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12877 lpfc_transport_template = 12878 fc_attach_transport(&lpfc_transport_functions); 12879 if (lpfc_transport_template == NULL) 12880 return -ENOMEM; 12881 lpfc_vport_transport_template = 12882 fc_attach_transport(&lpfc_vport_transport_functions); 12883 if (lpfc_vport_transport_template == NULL) { 12884 fc_release_transport(lpfc_transport_template); 12885 return -ENOMEM; 12886 } 12887 lpfc_nvme_cmd_template(); 12888 lpfc_nvmet_cmd_template(); 12889 12890 /* Initialize in case vector mapping is needed */ 12891 lpfc_used_cpu = NULL; 12892 lpfc_present_cpu = num_present_cpus(); 12893 12894 error = pci_register_driver(&lpfc_driver); 12895 if (error) { 12896 fc_release_transport(lpfc_transport_template); 12897 fc_release_transport(lpfc_vport_transport_template); 12898 } 12899 12900 return error; 12901 } 12902 12903 /** 12904 * lpfc_exit - lpfc module removal routine 12905 * 12906 * This routine is invoked when the lpfc module is removed from the kernel. 12907 * The special kernel macro module_exit() is used to indicate the role of 12908 * this routine to the kernel as lpfc module exit point. 12909 */ 12910 static void __exit 12911 lpfc_exit(void) 12912 { 12913 misc_deregister(&lpfc_mgmt_dev); 12914 pci_unregister_driver(&lpfc_driver); 12915 fc_release_transport(lpfc_transport_template); 12916 fc_release_transport(lpfc_vport_transport_template); 12917 if (_dump_buf_data) { 12918 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12919 "_dump_buf_data at 0x%p\n", 12920 (1L << _dump_buf_data_order), _dump_buf_data); 12921 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12922 } 12923 12924 if (_dump_buf_dif) { 12925 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12926 "_dump_buf_dif at 0x%p\n", 12927 (1L << _dump_buf_dif_order), _dump_buf_dif); 12928 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12929 } 12930 kfree(lpfc_used_cpu); 12931 idr_destroy(&lpfc_hba_index); 12932 } 12933 12934 module_init(lpfc_init); 12935 module_exit(lpfc_exit); 12936 MODULE_LICENSE("GPL"); 12937 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12938 MODULE_AUTHOR("Broadcom"); 12939 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12940