1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2015 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22#include <linux/blkdev.h> 23#include <linux/delay.h> 24#include <linux/dma-mapping.h> 25#include <linux/idr.h> 26#include <linux/interrupt.h> 27#include <linux/module.h> 28#include <linux/kthread.h> 29#include <linux/pci.h> 30#include <linux/spinlock.h> 31#include <linux/ctype.h> 32#include <linux/aer.h> 33#include <linux/slab.h> 34#include <linux/firmware.h> 35#include <linux/miscdevice.h> 36#include <linux/percpu.h> 37 38#include <scsi/scsi.h> 39#include <scsi/scsi_device.h> 40#include <scsi/scsi_host.h> 41#include <scsi/scsi_transport_fc.h> 42 43#include "lpfc_hw4.h" 44#include "lpfc_hw.h" 45#include "lpfc_sli.h" 46#include "lpfc_sli4.h" 47#include "lpfc_nl.h" 48#include "lpfc_disc.h" 49#include "lpfc_scsi.h" 50#include "lpfc.h" 51#include "lpfc_logmsg.h" 52#include "lpfc_crtn.h" 53#include "lpfc_vport.h" 54#include "lpfc_version.h" 55 56char *_dump_buf_data; 57unsigned long _dump_buf_data_order; 58char *_dump_buf_dif; 59unsigned long _dump_buf_dif_order; 60spinlock_t _dump_buf_lock; 61 62/* Used when mapping IRQ vectors in a driver centric manner */ 63uint16_t *lpfc_used_cpu; 64uint32_t lpfc_present_cpu; 65 66static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 67static int lpfc_post_rcv_buf(struct lpfc_hba *); 68static int lpfc_sli4_queue_verify(struct lpfc_hba *); 69static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 70static int lpfc_setup_endian_order(struct lpfc_hba *); 71static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 72static void lpfc_free_els_sgl_list(struct lpfc_hba *); 73static void lpfc_init_sgl_list(struct lpfc_hba *); 74static int lpfc_init_active_sgl_array(struct lpfc_hba *); 75static void lpfc_free_active_sgl(struct lpfc_hba *); 76static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 77static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 78static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 79static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 80static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 81static void lpfc_sli4_disable_intr(struct lpfc_hba *); 82static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 83static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 84 85static struct scsi_transport_template *lpfc_transport_template = NULL; 86static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 87static DEFINE_IDR(lpfc_hba_index); 88 89/** 90 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 91 * @phba: pointer to lpfc hba data structure. 92 * 93 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 94 * mailbox command. It retrieves the revision information from the HBA and 95 * collects the Vital Product Data (VPD) about the HBA for preparing the 96 * configuration of the HBA. 97 * 98 * Return codes: 99 * 0 - success. 100 * -ERESTART - requests the SLI layer to reset the HBA and try again. 101 * Any other value - indicates an error. 102 **/ 103int 104lpfc_config_port_prep(struct lpfc_hba *phba) 105{ 106 lpfc_vpd_t *vp = &phba->vpd; 107 int i = 0, rc; 108 LPFC_MBOXQ_t *pmb; 109 MAILBOX_t *mb; 110 char *lpfc_vpd_data = NULL; 111 uint16_t offset = 0; 112 static char licensed[56] = 113 "key unlock for use with gnu public licensed code only\0"; 114 static int init_key = 1; 115 116 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 117 if (!pmb) { 118 phba->link_state = LPFC_HBA_ERROR; 119 return -ENOMEM; 120 } 121 122 mb = &pmb->u.mb; 123 phba->link_state = LPFC_INIT_MBX_CMDS; 124 125 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 126 if (init_key) { 127 uint32_t *ptext = (uint32_t *) licensed; 128 129 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 130 *ptext = cpu_to_be32(*ptext); 131 init_key = 0; 132 } 133 134 lpfc_read_nv(phba, pmb); 135 memset((char*)mb->un.varRDnvp.rsvd3, 0, 136 sizeof (mb->un.varRDnvp.rsvd3)); 137 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 138 sizeof (licensed)); 139 140 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 141 142 if (rc != MBX_SUCCESS) { 143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 144 "0324 Config Port initialization " 145 "error, mbxCmd x%x READ_NVPARM, " 146 "mbxStatus x%x\n", 147 mb->mbxCommand, mb->mbxStatus); 148 mempool_free(pmb, phba->mbox_mem_pool); 149 return -ERESTART; 150 } 151 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 152 sizeof(phba->wwnn)); 153 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 154 sizeof(phba->wwpn)); 155 } 156 157 phba->sli3_options = 0x0; 158 159 /* Setup and issue mailbox READ REV command */ 160 lpfc_read_rev(phba, pmb); 161 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 162 if (rc != MBX_SUCCESS) { 163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 164 "0439 Adapter failed to init, mbxCmd x%x " 165 "READ_REV, mbxStatus x%x\n", 166 mb->mbxCommand, mb->mbxStatus); 167 mempool_free( pmb, phba->mbox_mem_pool); 168 return -ERESTART; 169 } 170 171 172 /* 173 * The value of rr must be 1 since the driver set the cv field to 1. 174 * This setting requires the FW to set all revision fields. 175 */ 176 if (mb->un.varRdRev.rr == 0) { 177 vp->rev.rBit = 0; 178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 179 "0440 Adapter failed to init, READ_REV has " 180 "missing revision information.\n"); 181 mempool_free(pmb, phba->mbox_mem_pool); 182 return -ERESTART; 183 } 184 185 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 186 mempool_free(pmb, phba->mbox_mem_pool); 187 return -EINVAL; 188 } 189 190 /* Save information as VPD data */ 191 vp->rev.rBit = 1; 192 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 193 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 194 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 195 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 196 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 197 vp->rev.biuRev = mb->un.varRdRev.biuRev; 198 vp->rev.smRev = mb->un.varRdRev.smRev; 199 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 200 vp->rev.endecRev = mb->un.varRdRev.endecRev; 201 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 202 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 203 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 204 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 205 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 206 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 207 208 /* If the sli feature level is less then 9, we must 209 * tear down all RPIs and VPIs on link down if NPIV 210 * is enabled. 211 */ 212 if (vp->rev.feaLevelHigh < 9) 213 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 214 215 if (lpfc_is_LC_HBA(phba->pcidev->device)) 216 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 217 sizeof (phba->RandomData)); 218 219 /* Get adapter VPD information */ 220 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 221 if (!lpfc_vpd_data) 222 goto out_free_mbox; 223 do { 224 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 225 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 226 227 if (rc != MBX_SUCCESS) { 228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 229 "0441 VPD not present on adapter, " 230 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 231 mb->mbxCommand, mb->mbxStatus); 232 mb->un.varDmp.word_cnt = 0; 233 } 234 /* dump mem may return a zero when finished or we got a 235 * mailbox error, either way we are done. 236 */ 237 if (mb->un.varDmp.word_cnt == 0) 238 break; 239 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 240 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 241 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 242 lpfc_vpd_data + offset, 243 mb->un.varDmp.word_cnt); 244 offset += mb->un.varDmp.word_cnt; 245 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 246 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 247 248 kfree(lpfc_vpd_data); 249out_free_mbox: 250 mempool_free(pmb, phba->mbox_mem_pool); 251 return 0; 252} 253 254/** 255 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 256 * @phba: pointer to lpfc hba data structure. 257 * @pmboxq: pointer to the driver internal queue element for mailbox command. 258 * 259 * This is the completion handler for driver's configuring asynchronous event 260 * mailbox command to the device. If the mailbox command returns successfully, 261 * it will set internal async event support flag to 1; otherwise, it will 262 * set internal async event support flag to 0. 263 **/ 264static void 265lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 266{ 267 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 268 phba->temp_sensor_support = 1; 269 else 270 phba->temp_sensor_support = 0; 271 mempool_free(pmboxq, phba->mbox_mem_pool); 272 return; 273} 274 275/** 276 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 277 * @phba: pointer to lpfc hba data structure. 278 * @pmboxq: pointer to the driver internal queue element for mailbox command. 279 * 280 * This is the completion handler for dump mailbox command for getting 281 * wake up parameters. When this command complete, the response contain 282 * Option rom version of the HBA. This function translate the version number 283 * into a human readable string and store it in OptionROMVersion. 284 **/ 285static void 286lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 287{ 288 struct prog_id *prg; 289 uint32_t prog_id_word; 290 char dist = ' '; 291 /* character array used for decoding dist type. */ 292 char dist_char[] = "nabx"; 293 294 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 295 mempool_free(pmboxq, phba->mbox_mem_pool); 296 return; 297 } 298 299 prg = (struct prog_id *) &prog_id_word; 300 301 /* word 7 contain option rom version */ 302 prog_id_word = pmboxq->u.mb.un.varWords[7]; 303 304 /* Decode the Option rom version word to a readable string */ 305 if (prg->dist < 4) 306 dist = dist_char[prg->dist]; 307 308 if ((prg->dist == 3) && (prg->num == 0)) 309 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 310 prg->ver, prg->rev, prg->lev); 311 else 312 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 313 prg->ver, prg->rev, prg->lev, 314 dist, prg->num); 315 mempool_free(pmboxq, phba->mbox_mem_pool); 316 return; 317} 318 319/** 320 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 321 * cfg_soft_wwnn, cfg_soft_wwpn 322 * @vport: pointer to lpfc vport data structure. 323 * 324 * 325 * Return codes 326 * None. 327 **/ 328void 329lpfc_update_vport_wwn(struct lpfc_vport *vport) 330{ 331 /* If the soft name exists then update it using the service params */ 332 if (vport->phba->cfg_soft_wwnn) 333 u64_to_wwn(vport->phba->cfg_soft_wwnn, 334 vport->fc_sparam.nodeName.u.wwn); 335 if (vport->phba->cfg_soft_wwpn) 336 u64_to_wwn(vport->phba->cfg_soft_wwpn, 337 vport->fc_sparam.portName.u.wwn); 338 339 /* 340 * If the name is empty or there exists a soft name 341 * then copy the service params name, otherwise use the fc name 342 */ 343 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 344 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 345 sizeof(struct lpfc_name)); 346 else 347 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 348 sizeof(struct lpfc_name)); 349 350 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 351 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 352 sizeof(struct lpfc_name)); 353 else 354 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 355 sizeof(struct lpfc_name)); 356} 357 358/** 359 * lpfc_config_port_post - Perform lpfc initialization after config port 360 * @phba: pointer to lpfc hba data structure. 361 * 362 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 363 * command call. It performs all internal resource and state setups on the 364 * port: post IOCB buffers, enable appropriate host interrupt attentions, 365 * ELS ring timers, etc. 366 * 367 * Return codes 368 * 0 - success. 369 * Any other value - error. 370 **/ 371int 372lpfc_config_port_post(struct lpfc_hba *phba) 373{ 374 struct lpfc_vport *vport = phba->pport; 375 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 376 LPFC_MBOXQ_t *pmb; 377 MAILBOX_t *mb; 378 struct lpfc_dmabuf *mp; 379 struct lpfc_sli *psli = &phba->sli; 380 uint32_t status, timeout; 381 int i, j; 382 int rc; 383 384 spin_lock_irq(&phba->hbalock); 385 /* 386 * If the Config port completed correctly the HBA is not 387 * over heated any more. 388 */ 389 if (phba->over_temp_state == HBA_OVER_TEMP) 390 phba->over_temp_state = HBA_NORMAL_TEMP; 391 spin_unlock_irq(&phba->hbalock); 392 393 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 394 if (!pmb) { 395 phba->link_state = LPFC_HBA_ERROR; 396 return -ENOMEM; 397 } 398 mb = &pmb->u.mb; 399 400 /* Get login parameters for NID. */ 401 rc = lpfc_read_sparam(phba, pmb, 0); 402 if (rc) { 403 mempool_free(pmb, phba->mbox_mem_pool); 404 return -ENOMEM; 405 } 406 407 pmb->vport = vport; 408 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 410 "0448 Adapter failed init, mbxCmd x%x " 411 "READ_SPARM mbxStatus x%x\n", 412 mb->mbxCommand, mb->mbxStatus); 413 phba->link_state = LPFC_HBA_ERROR; 414 mp = (struct lpfc_dmabuf *) pmb->context1; 415 mempool_free(pmb, phba->mbox_mem_pool); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 return -EIO; 419 } 420 421 mp = (struct lpfc_dmabuf *) pmb->context1; 422 423 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 424 lpfc_mbuf_free(phba, mp->virt, mp->phys); 425 kfree(mp); 426 pmb->context1 = NULL; 427 lpfc_update_vport_wwn(vport); 428 429 /* Update the fc_host data structures with new wwn. */ 430 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 431 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 432 fc_host_max_npiv_vports(shost) = phba->max_vpi; 433 434 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 435 /* This should be consolidated into parse_vpd ? - mr */ 436 if (phba->SerialNumber[0] == 0) { 437 uint8_t *outptr; 438 439 outptr = &vport->fc_nodename.u.s.IEEE[0]; 440 for (i = 0; i < 12; i++) { 441 status = *outptr++; 442 j = ((status & 0xf0) >> 4); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 i++; 450 j = (status & 0xf); 451 if (j <= 9) 452 phba->SerialNumber[i] = 453 (char)((uint8_t) 0x30 + (uint8_t) j); 454 else 455 phba->SerialNumber[i] = 456 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 457 } 458 } 459 460 lpfc_read_config(phba, pmb); 461 pmb->vport = vport; 462 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 464 "0453 Adapter failed to init, mbxCmd x%x " 465 "READ_CONFIG, mbxStatus x%x\n", 466 mb->mbxCommand, mb->mbxStatus); 467 phba->link_state = LPFC_HBA_ERROR; 468 mempool_free( pmb, phba->mbox_mem_pool); 469 return -EIO; 470 } 471 472 /* Check if the port is disabled */ 473 lpfc_sli_read_link_ste(phba); 474 475 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 476 i = (mb->un.varRdConfig.max_xri + 1); 477 if (phba->cfg_hba_queue_depth > i) { 478 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 479 "3359 HBA queue depth changed from %d to %d\n", 480 phba->cfg_hba_queue_depth, i); 481 phba->cfg_hba_queue_depth = i; 482 } 483 484 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 485 i = (mb->un.varRdConfig.max_xri >> 3); 486 if (phba->pport->cfg_lun_queue_depth > i) { 487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 488 "3360 LUN queue depth changed from %d to %d\n", 489 phba->pport->cfg_lun_queue_depth, i); 490 phba->pport->cfg_lun_queue_depth = i; 491 } 492 493 phba->lmt = mb->un.varRdConfig.lmt; 494 495 /* Get the default values for Model Name and Description */ 496 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 497 498 phba->link_state = LPFC_LINK_DOWN; 499 500 /* Only process IOCBs on ELS ring till hba_state is READY */ 501 if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr) 502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 503 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 505 if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr) 506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 507 508 /* Post receive buffers for desired rings */ 509 if (phba->sli_rev != 3) 510 lpfc_post_rcv_buf(phba); 511 512 /* 513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 514 */ 515 if (phba->intr_type == MSIX) { 516 rc = lpfc_config_msi(phba, pmb); 517 if (rc) { 518 mempool_free(pmb, phba->mbox_mem_pool); 519 return -EIO; 520 } 521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 522 if (rc != MBX_SUCCESS) { 523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 524 "0352 Config MSI mailbox command " 525 "failed, mbxCmd x%x, mbxStatus x%x\n", 526 pmb->u.mb.mbxCommand, 527 pmb->u.mb.mbxStatus); 528 mempool_free(pmb, phba->mbox_mem_pool); 529 return -EIO; 530 } 531 } 532 533 spin_lock_irq(&phba->hbalock); 534 /* Initialize ERATT handling flag */ 535 phba->hba_flag &= ~HBA_ERATT_HANDLED; 536 537 /* Enable appropriate host interrupts */ 538 if (lpfc_readl(phba->HCregaddr, &status)) { 539 spin_unlock_irq(&phba->hbalock); 540 return -EIO; 541 } 542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 543 if (psli->num_rings > 0) 544 status |= HC_R0INT_ENA; 545 if (psli->num_rings > 1) 546 status |= HC_R1INT_ENA; 547 if (psli->num_rings > 2) 548 status |= HC_R2INT_ENA; 549 if (psli->num_rings > 3) 550 status |= HC_R3INT_ENA; 551 552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 553 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 554 status &= ~(HC_R0INT_ENA); 555 556 writel(status, phba->HCregaddr); 557 readl(phba->HCregaddr); /* flush */ 558 spin_unlock_irq(&phba->hbalock); 559 560 /* Set up ring-0 (ELS) timer */ 561 timeout = phba->fc_ratov * 2; 562 mod_timer(&vport->els_tmofunc, 563 jiffies + msecs_to_jiffies(1000 * timeout)); 564 /* Set up heart beat (HB) timer */ 565 mod_timer(&phba->hb_tmofunc, 566 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 567 phba->hb_outstanding = 0; 568 phba->last_completion_time = jiffies; 569 /* Set up error attention (ERATT) polling timer */ 570 mod_timer(&phba->eratt_poll, 571 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL)); 572 573 if (phba->hba_flag & LINK_DISABLED) { 574 lpfc_printf_log(phba, 575 KERN_ERR, LOG_INIT, 576 "2598 Adapter Link is disabled.\n"); 577 lpfc_down_link(phba, pmb); 578 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 580 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 581 lpfc_printf_log(phba, 582 KERN_ERR, LOG_INIT, 583 "2599 Adapter failed to issue DOWN_LINK" 584 " mbox command rc 0x%x\n", rc); 585 586 mempool_free(pmb, phba->mbox_mem_pool); 587 return -EIO; 588 } 589 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 590 mempool_free(pmb, phba->mbox_mem_pool); 591 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 592 if (rc) 593 return rc; 594 } 595 /* MBOX buffer will be freed in mbox compl */ 596 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 597 if (!pmb) { 598 phba->link_state = LPFC_HBA_ERROR; 599 return -ENOMEM; 600 } 601 602 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 603 pmb->mbox_cmpl = lpfc_config_async_cmpl; 604 pmb->vport = phba->pport; 605 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 606 607 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 608 lpfc_printf_log(phba, 609 KERN_ERR, 610 LOG_INIT, 611 "0456 Adapter failed to issue " 612 "ASYNCEVT_ENABLE mbox status x%x\n", 613 rc); 614 mempool_free(pmb, phba->mbox_mem_pool); 615 } 616 617 /* Get Option rom version */ 618 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 619 if (!pmb) { 620 phba->link_state = LPFC_HBA_ERROR; 621 return -ENOMEM; 622 } 623 624 lpfc_dump_wakeup_param(phba, pmb); 625 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 626 pmb->vport = phba->pport; 627 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 628 629 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 631 "to get Option ROM version status x%x\n", rc); 632 mempool_free(pmb, phba->mbox_mem_pool); 633 } 634 635 return 0; 636} 637 638/** 639 * lpfc_hba_init_link - Initialize the FC link 640 * @phba: pointer to lpfc hba data structure. 641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 642 * 643 * This routine will issue the INIT_LINK mailbox command call. 644 * It is available to other drivers through the lpfc_hba data 645 * structure for use as a delayed link up mechanism with the 646 * module parameter lpfc_suppress_link_up. 647 * 648 * Return code 649 * 0 - success 650 * Any other value - error 651 **/ 652static int 653lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 654{ 655 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 656} 657 658/** 659 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 660 * @phba: pointer to lpfc hba data structure. 661 * @fc_topology: desired fc topology. 662 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 663 * 664 * This routine will issue the INIT_LINK mailbox command call. 665 * It is available to other drivers through the lpfc_hba data 666 * structure for use as a delayed link up mechanism with the 667 * module parameter lpfc_suppress_link_up. 668 * 669 * Return code 670 * 0 - success 671 * Any other value - error 672 **/ 673int 674lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 675 uint32_t flag) 676{ 677 struct lpfc_vport *vport = phba->pport; 678 LPFC_MBOXQ_t *pmb; 679 MAILBOX_t *mb; 680 int rc; 681 682 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 683 if (!pmb) { 684 phba->link_state = LPFC_HBA_ERROR; 685 return -ENOMEM; 686 } 687 mb = &pmb->u.mb; 688 pmb->vport = vport; 689 690 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 691 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 692 !(phba->lmt & LMT_1Gb)) || 693 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 694 !(phba->lmt & LMT_2Gb)) || 695 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 696 !(phba->lmt & LMT_4Gb)) || 697 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 698 !(phba->lmt & LMT_8Gb)) || 699 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 700 !(phba->lmt & LMT_10Gb)) || 701 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 702 !(phba->lmt & LMT_16Gb)) || 703 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 704 !(phba->lmt & LMT_32Gb))) { 705 /* Reset link speed to auto */ 706 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 707 "1302 Invalid speed for this board:%d " 708 "Reset link speed to auto.\n", 709 phba->cfg_link_speed); 710 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 711 } 712 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 713 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 714 if (phba->sli_rev < LPFC_SLI_REV4) 715 lpfc_set_loopback_flag(phba); 716 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 717 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 719 "0498 Adapter failed to init, mbxCmd x%x " 720 "INIT_LINK, mbxStatus x%x\n", 721 mb->mbxCommand, mb->mbxStatus); 722 if (phba->sli_rev <= LPFC_SLI_REV3) { 723 /* Clear all interrupt enable conditions */ 724 writel(0, phba->HCregaddr); 725 readl(phba->HCregaddr); /* flush */ 726 /* Clear all pending interrupts */ 727 writel(0xffffffff, phba->HAregaddr); 728 readl(phba->HAregaddr); /* flush */ 729 } 730 phba->link_state = LPFC_HBA_ERROR; 731 if (rc != MBX_BUSY || flag == MBX_POLL) 732 mempool_free(pmb, phba->mbox_mem_pool); 733 return -EIO; 734 } 735 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 736 if (flag == MBX_POLL) 737 mempool_free(pmb, phba->mbox_mem_pool); 738 739 return 0; 740} 741 742/** 743 * lpfc_hba_down_link - this routine downs the FC link 744 * @phba: pointer to lpfc hba data structure. 745 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 746 * 747 * This routine will issue the DOWN_LINK mailbox command call. 748 * It is available to other drivers through the lpfc_hba data 749 * structure for use to stop the link. 750 * 751 * Return code 752 * 0 - success 753 * Any other value - error 754 **/ 755static int 756lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 757{ 758 LPFC_MBOXQ_t *pmb; 759 int rc; 760 761 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 762 if (!pmb) { 763 phba->link_state = LPFC_HBA_ERROR; 764 return -ENOMEM; 765 } 766 767 lpfc_printf_log(phba, 768 KERN_ERR, LOG_INIT, 769 "0491 Adapter Link is disabled.\n"); 770 lpfc_down_link(phba, pmb); 771 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 772 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 773 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 774 lpfc_printf_log(phba, 775 KERN_ERR, LOG_INIT, 776 "2522 Adapter failed to issue DOWN_LINK" 777 " mbox command rc 0x%x\n", rc); 778 779 mempool_free(pmb, phba->mbox_mem_pool); 780 return -EIO; 781 } 782 if (flag == MBX_POLL) 783 mempool_free(pmb, phba->mbox_mem_pool); 784 785 return 0; 786} 787 788/** 789 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 790 * @phba: pointer to lpfc HBA data structure. 791 * 792 * This routine will do LPFC uninitialization before the HBA is reset when 793 * bringing down the SLI Layer. 794 * 795 * Return codes 796 * 0 - success. 797 * Any other value - error. 798 **/ 799int 800lpfc_hba_down_prep(struct lpfc_hba *phba) 801{ 802 struct lpfc_vport **vports; 803 int i; 804 805 if (phba->sli_rev <= LPFC_SLI_REV3) { 806 /* Disable interrupts */ 807 writel(0, phba->HCregaddr); 808 readl(phba->HCregaddr); /* flush */ 809 } 810 811 if (phba->pport->load_flag & FC_UNLOADING) 812 lpfc_cleanup_discovery_resources(phba->pport); 813 else { 814 vports = lpfc_create_vport_work_array(phba); 815 if (vports != NULL) 816 for (i = 0; i <= phba->max_vports && 817 vports[i] != NULL; i++) 818 lpfc_cleanup_discovery_resources(vports[i]); 819 lpfc_destroy_vport_work_array(phba, vports); 820 } 821 return 0; 822} 823 824/** 825 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 826 * rspiocb which got deferred 827 * 828 * @phba: pointer to lpfc HBA data structure. 829 * 830 * This routine will cleanup completed slow path events after HBA is reset 831 * when bringing down the SLI Layer. 832 * 833 * 834 * Return codes 835 * void. 836 **/ 837static void 838lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 839{ 840 struct lpfc_iocbq *rspiocbq; 841 struct hbq_dmabuf *dmabuf; 842 struct lpfc_cq_event *cq_event; 843 844 spin_lock_irq(&phba->hbalock); 845 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 846 spin_unlock_irq(&phba->hbalock); 847 848 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 849 /* Get the response iocb from the head of work queue */ 850 spin_lock_irq(&phba->hbalock); 851 list_remove_head(&phba->sli4_hba.sp_queue_event, 852 cq_event, struct lpfc_cq_event, list); 853 spin_unlock_irq(&phba->hbalock); 854 855 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 856 case CQE_CODE_COMPL_WQE: 857 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 858 cq_event); 859 lpfc_sli_release_iocbq(phba, rspiocbq); 860 break; 861 case CQE_CODE_RECEIVE: 862 case CQE_CODE_RECEIVE_V1: 863 dmabuf = container_of(cq_event, struct hbq_dmabuf, 864 cq_event); 865 lpfc_in_buf_free(phba, &dmabuf->dbuf); 866 } 867 } 868} 869 870/** 871 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 872 * @phba: pointer to lpfc HBA data structure. 873 * 874 * This routine will cleanup posted ELS buffers after the HBA is reset 875 * when bringing down the SLI Layer. 876 * 877 * 878 * Return codes 879 * void. 880 **/ 881static void 882lpfc_hba_free_post_buf(struct lpfc_hba *phba) 883{ 884 struct lpfc_sli *psli = &phba->sli; 885 struct lpfc_sli_ring *pring; 886 struct lpfc_dmabuf *mp, *next_mp; 887 LIST_HEAD(buflist); 888 int count; 889 890 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 891 lpfc_sli_hbqbuf_free_all(phba); 892 else { 893 /* Cleanup preposted buffers on the ELS ring */ 894 pring = &psli->ring[LPFC_ELS_RING]; 895 spin_lock_irq(&phba->hbalock); 896 list_splice_init(&pring->postbufq, &buflist); 897 spin_unlock_irq(&phba->hbalock); 898 899 count = 0; 900 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 901 list_del(&mp->list); 902 count++; 903 lpfc_mbuf_free(phba, mp->virt, mp->phys); 904 kfree(mp); 905 } 906 907 spin_lock_irq(&phba->hbalock); 908 pring->postbufq_cnt -= count; 909 spin_unlock_irq(&phba->hbalock); 910 } 911} 912 913/** 914 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 915 * @phba: pointer to lpfc HBA data structure. 916 * 917 * This routine will cleanup the txcmplq after the HBA is reset when bringing 918 * down the SLI Layer. 919 * 920 * Return codes 921 * void 922 **/ 923static void 924lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 925{ 926 struct lpfc_sli *psli = &phba->sli; 927 struct lpfc_sli_ring *pring; 928 LIST_HEAD(completions); 929 int i; 930 931 for (i = 0; i < psli->num_rings; i++) { 932 pring = &psli->ring[i]; 933 if (phba->sli_rev >= LPFC_SLI_REV4) 934 spin_lock_irq(&pring->ring_lock); 935 else 936 spin_lock_irq(&phba->hbalock); 937 /* At this point in time the HBA is either reset or DOA. Either 938 * way, nothing should be on txcmplq as it will NEVER complete. 939 */ 940 list_splice_init(&pring->txcmplq, &completions); 941 pring->txcmplq_cnt = 0; 942 943 if (phba->sli_rev >= LPFC_SLI_REV4) 944 spin_unlock_irq(&pring->ring_lock); 945 else 946 spin_unlock_irq(&phba->hbalock); 947 948 /* Cancel all the IOCBs from the completions list */ 949 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 950 IOERR_SLI_ABORTED); 951 lpfc_sli_abort_iocb_ring(phba, pring); 952 } 953} 954 955/** 956 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 957 int i; 958 * @phba: pointer to lpfc HBA data structure. 959 * 960 * This routine will do uninitialization after the HBA is reset when bring 961 * down the SLI Layer. 962 * 963 * Return codes 964 * 0 - success. 965 * Any other value - error. 966 **/ 967static int 968lpfc_hba_down_post_s3(struct lpfc_hba *phba) 969{ 970 lpfc_hba_free_post_buf(phba); 971 lpfc_hba_clean_txcmplq(phba); 972 return 0; 973} 974 975/** 976 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 977 * @phba: pointer to lpfc HBA data structure. 978 * 979 * This routine will do uninitialization after the HBA is reset when bring 980 * down the SLI Layer. 981 * 982 * Return codes 983 * 0 - success. 984 * Any other value - error. 985 **/ 986static int 987lpfc_hba_down_post_s4(struct lpfc_hba *phba) 988{ 989 struct lpfc_scsi_buf *psb, *psb_next; 990 LIST_HEAD(aborts); 991 unsigned long iflag = 0; 992 struct lpfc_sglq *sglq_entry = NULL; 993 struct lpfc_sli *psli = &phba->sli; 994 struct lpfc_sli_ring *pring; 995 996 lpfc_hba_free_post_buf(phba); 997 lpfc_hba_clean_txcmplq(phba); 998 pring = &psli->ring[LPFC_ELS_RING]; 999 1000 /* At this point in time the HBA is either reset or DOA. Either 1001 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1002 * on the lpfc_sgl_list so that it can either be freed if the 1003 * driver is unloading or reposted if the driver is restarting 1004 * the port. 1005 */ 1006 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 1007 /* scsl_buf_list */ 1008 /* abts_sgl_list_lock required because worker thread uses this 1009 * list. 1010 */ 1011 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 1012 list_for_each_entry(sglq_entry, 1013 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1014 sglq_entry->state = SGL_FREED; 1015 1016 spin_lock(&pring->ring_lock); 1017 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1018 &phba->sli4_hba.lpfc_sgl_list); 1019 spin_unlock(&pring->ring_lock); 1020 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 1021 /* abts_scsi_buf_list_lock required because worker thread uses this 1022 * list. 1023 */ 1024 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1025 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1026 &aborts); 1027 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1028 spin_unlock_irq(&phba->hbalock); 1029 1030 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1031 psb->pCmd = NULL; 1032 psb->status = IOSTAT_SUCCESS; 1033 } 1034 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1035 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1036 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1037 1038 lpfc_sli4_free_sp_events(phba); 1039 return 0; 1040} 1041 1042/** 1043 * lpfc_hba_down_post - Wrapper func for hba down post routine 1044 * @phba: pointer to lpfc HBA data structure. 1045 * 1046 * This routine wraps the actual SLI3 or SLI4 routine for performing 1047 * uninitialization after the HBA is reset when bring down the SLI Layer. 1048 * 1049 * Return codes 1050 * 0 - success. 1051 * Any other value - error. 1052 **/ 1053int 1054lpfc_hba_down_post(struct lpfc_hba *phba) 1055{ 1056 return (*phba->lpfc_hba_down_post)(phba); 1057} 1058 1059/** 1060 * lpfc_hb_timeout - The HBA-timer timeout handler 1061 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1062 * 1063 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1064 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1065 * work-port-events bitmap and the worker thread is notified. This timeout 1066 * event will be used by the worker thread to invoke the actual timeout 1067 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1068 * be performed in the timeout handler and the HBA timeout event bit shall 1069 * be cleared by the worker thread after it has taken the event bitmap out. 1070 **/ 1071static void 1072lpfc_hb_timeout(unsigned long ptr) 1073{ 1074 struct lpfc_hba *phba; 1075 uint32_t tmo_posted; 1076 unsigned long iflag; 1077 1078 phba = (struct lpfc_hba *)ptr; 1079 1080 /* Check for heart beat timeout conditions */ 1081 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1082 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1083 if (!tmo_posted) 1084 phba->pport->work_port_events |= WORKER_HB_TMO; 1085 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1086 1087 /* Tell the worker thread there is work to do */ 1088 if (!tmo_posted) 1089 lpfc_worker_wake_up(phba); 1090 return; 1091} 1092 1093/** 1094 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1095 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1096 * 1097 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1098 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1099 * work-port-events bitmap and the worker thread is notified. This timeout 1100 * event will be used by the worker thread to invoke the actual timeout 1101 * handler routine, lpfc_rrq_handler. Any periodical operations will 1102 * be performed in the timeout handler and the RRQ timeout event bit shall 1103 * be cleared by the worker thread after it has taken the event bitmap out. 1104 **/ 1105static void 1106lpfc_rrq_timeout(unsigned long ptr) 1107{ 1108 struct lpfc_hba *phba; 1109 unsigned long iflag; 1110 1111 phba = (struct lpfc_hba *)ptr; 1112 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1113 if (!(phba->pport->load_flag & FC_UNLOADING)) 1114 phba->hba_flag |= HBA_RRQ_ACTIVE; 1115 else 1116 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1117 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1118 1119 if (!(phba->pport->load_flag & FC_UNLOADING)) 1120 lpfc_worker_wake_up(phba); 1121} 1122 1123/** 1124 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1125 * @phba: pointer to lpfc hba data structure. 1126 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1127 * 1128 * This is the callback function to the lpfc heart-beat mailbox command. 1129 * If configured, the lpfc driver issues the heart-beat mailbox command to 1130 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1131 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1132 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1133 * heart-beat outstanding state. Once the mailbox command comes back and 1134 * no error conditions detected, the heart-beat mailbox command timer is 1135 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1136 * state is cleared for the next heart-beat. If the timer expired with the 1137 * heart-beat outstanding state set, the driver will put the HBA offline. 1138 **/ 1139static void 1140lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1141{ 1142 unsigned long drvr_flag; 1143 1144 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1145 phba->hb_outstanding = 0; 1146 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1147 1148 /* Check and reset heart-beat timer is necessary */ 1149 mempool_free(pmboxq, phba->mbox_mem_pool); 1150 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1151 !(phba->link_state == LPFC_HBA_ERROR) && 1152 !(phba->pport->load_flag & FC_UNLOADING)) 1153 mod_timer(&phba->hb_tmofunc, 1154 jiffies + 1155 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1156 return; 1157} 1158 1159/** 1160 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1161 * @phba: pointer to lpfc hba data structure. 1162 * 1163 * This is the actual HBA-timer timeout handler to be invoked by the worker 1164 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1165 * handler performs any periodic operations needed for the device. If such 1166 * periodic event has already been attended to either in the interrupt handler 1167 * or by processing slow-ring or fast-ring events within the HBA-timer 1168 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1169 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1170 * is configured and there is no heart-beat mailbox command outstanding, a 1171 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1172 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1173 * to offline. 1174 **/ 1175void 1176lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1177{ 1178 struct lpfc_vport **vports; 1179 LPFC_MBOXQ_t *pmboxq; 1180 struct lpfc_dmabuf *buf_ptr; 1181 int retval, i; 1182 struct lpfc_sli *psli = &phba->sli; 1183 LIST_HEAD(completions); 1184 1185 vports = lpfc_create_vport_work_array(phba); 1186 if (vports != NULL) 1187 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1188 lpfc_rcv_seq_check_edtov(vports[i]); 1189 lpfc_destroy_vport_work_array(phba, vports); 1190 1191 if ((phba->link_state == LPFC_HBA_ERROR) || 1192 (phba->pport->load_flag & FC_UNLOADING) || 1193 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1194 return; 1195 1196 spin_lock_irq(&phba->pport->work_port_lock); 1197 1198 if (time_after(phba->last_completion_time + 1199 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1200 jiffies)) { 1201 spin_unlock_irq(&phba->pport->work_port_lock); 1202 if (!phba->hb_outstanding) 1203 mod_timer(&phba->hb_tmofunc, 1204 jiffies + 1205 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1206 else 1207 mod_timer(&phba->hb_tmofunc, 1208 jiffies + 1209 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1210 return; 1211 } 1212 spin_unlock_irq(&phba->pport->work_port_lock); 1213 1214 if (phba->elsbuf_cnt && 1215 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1216 spin_lock_irq(&phba->hbalock); 1217 list_splice_init(&phba->elsbuf, &completions); 1218 phba->elsbuf_cnt = 0; 1219 phba->elsbuf_prev_cnt = 0; 1220 spin_unlock_irq(&phba->hbalock); 1221 1222 while (!list_empty(&completions)) { 1223 list_remove_head(&completions, buf_ptr, 1224 struct lpfc_dmabuf, list); 1225 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1226 kfree(buf_ptr); 1227 } 1228 } 1229 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1230 1231 /* If there is no heart beat outstanding, issue a heartbeat command */ 1232 if (phba->cfg_enable_hba_heartbeat) { 1233 if (!phba->hb_outstanding) { 1234 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1235 (list_empty(&psli->mboxq))) { 1236 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1237 GFP_KERNEL); 1238 if (!pmboxq) { 1239 mod_timer(&phba->hb_tmofunc, 1240 jiffies + 1241 msecs_to_jiffies(1000 * 1242 LPFC_HB_MBOX_INTERVAL)); 1243 return; 1244 } 1245 1246 lpfc_heart_beat(phba, pmboxq); 1247 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1248 pmboxq->vport = phba->pport; 1249 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1250 MBX_NOWAIT); 1251 1252 if (retval != MBX_BUSY && 1253 retval != MBX_SUCCESS) { 1254 mempool_free(pmboxq, 1255 phba->mbox_mem_pool); 1256 mod_timer(&phba->hb_tmofunc, 1257 jiffies + 1258 msecs_to_jiffies(1000 * 1259 LPFC_HB_MBOX_INTERVAL)); 1260 return; 1261 } 1262 phba->skipped_hb = 0; 1263 phba->hb_outstanding = 1; 1264 } else if (time_before_eq(phba->last_completion_time, 1265 phba->skipped_hb)) { 1266 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1267 "2857 Last completion time not " 1268 " updated in %d ms\n", 1269 jiffies_to_msecs(jiffies 1270 - phba->last_completion_time)); 1271 } else 1272 phba->skipped_hb = jiffies; 1273 1274 mod_timer(&phba->hb_tmofunc, 1275 jiffies + 1276 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1277 return; 1278 } else { 1279 /* 1280 * If heart beat timeout called with hb_outstanding set 1281 * we need to give the hb mailbox cmd a chance to 1282 * complete or TMO. 1283 */ 1284 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1285 "0459 Adapter heartbeat still out" 1286 "standing:last compl time was %d ms.\n", 1287 jiffies_to_msecs(jiffies 1288 - phba->last_completion_time)); 1289 mod_timer(&phba->hb_tmofunc, 1290 jiffies + 1291 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1292 } 1293 } 1294} 1295 1296/** 1297 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1298 * @phba: pointer to lpfc hba data structure. 1299 * 1300 * This routine is called to bring the HBA offline when HBA hardware error 1301 * other than Port Error 6 has been detected. 1302 **/ 1303static void 1304lpfc_offline_eratt(struct lpfc_hba *phba) 1305{ 1306 struct lpfc_sli *psli = &phba->sli; 1307 1308 spin_lock_irq(&phba->hbalock); 1309 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1310 spin_unlock_irq(&phba->hbalock); 1311 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1312 1313 lpfc_offline(phba); 1314 lpfc_reset_barrier(phba); 1315 spin_lock_irq(&phba->hbalock); 1316 lpfc_sli_brdreset(phba); 1317 spin_unlock_irq(&phba->hbalock); 1318 lpfc_hba_down_post(phba); 1319 lpfc_sli_brdready(phba, HS_MBRDY); 1320 lpfc_unblock_mgmt_io(phba); 1321 phba->link_state = LPFC_HBA_ERROR; 1322 return; 1323} 1324 1325/** 1326 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1327 * @phba: pointer to lpfc hba data structure. 1328 * 1329 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1330 * other than Port Error 6 has been detected. 1331 **/ 1332void 1333lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1334{ 1335 spin_lock_irq(&phba->hbalock); 1336 phba->link_state = LPFC_HBA_ERROR; 1337 spin_unlock_irq(&phba->hbalock); 1338 1339 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1340 lpfc_offline(phba); 1341 lpfc_hba_down_post(phba); 1342 lpfc_unblock_mgmt_io(phba); 1343} 1344 1345/** 1346 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1347 * @phba: pointer to lpfc hba data structure. 1348 * 1349 * This routine is invoked to handle the deferred HBA hardware error 1350 * conditions. This type of error is indicated by HBA by setting ER1 1351 * and another ER bit in the host status register. The driver will 1352 * wait until the ER1 bit clears before handling the error condition. 1353 **/ 1354static void 1355lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1356{ 1357 uint32_t old_host_status = phba->work_hs; 1358 struct lpfc_sli *psli = &phba->sli; 1359 1360 /* If the pci channel is offline, ignore possible errors, 1361 * since we cannot communicate with the pci card anyway. 1362 */ 1363 if (pci_channel_offline(phba->pcidev)) { 1364 spin_lock_irq(&phba->hbalock); 1365 phba->hba_flag &= ~DEFER_ERATT; 1366 spin_unlock_irq(&phba->hbalock); 1367 return; 1368 } 1369 1370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1371 "0479 Deferred Adapter Hardware Error " 1372 "Data: x%x x%x x%x\n", 1373 phba->work_hs, 1374 phba->work_status[0], phba->work_status[1]); 1375 1376 spin_lock_irq(&phba->hbalock); 1377 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1378 spin_unlock_irq(&phba->hbalock); 1379 1380 1381 /* 1382 * Firmware stops when it triggred erratt. That could cause the I/Os 1383 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1384 * SCSI layer retry it after re-establishing link. 1385 */ 1386 lpfc_sli_abort_fcp_rings(phba); 1387 1388 /* 1389 * There was a firmware error. Take the hba offline and then 1390 * attempt to restart it. 1391 */ 1392 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1393 lpfc_offline(phba); 1394 1395 /* Wait for the ER1 bit to clear.*/ 1396 while (phba->work_hs & HS_FFER1) { 1397 msleep(100); 1398 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1399 phba->work_hs = UNPLUG_ERR ; 1400 break; 1401 } 1402 /* If driver is unloading let the worker thread continue */ 1403 if (phba->pport->load_flag & FC_UNLOADING) { 1404 phba->work_hs = 0; 1405 break; 1406 } 1407 } 1408 1409 /* 1410 * This is to ptrotect against a race condition in which 1411 * first write to the host attention register clear the 1412 * host status register. 1413 */ 1414 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1415 phba->work_hs = old_host_status & ~HS_FFER1; 1416 1417 spin_lock_irq(&phba->hbalock); 1418 phba->hba_flag &= ~DEFER_ERATT; 1419 spin_unlock_irq(&phba->hbalock); 1420 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1421 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1422} 1423 1424static void 1425lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1426{ 1427 struct lpfc_board_event_header board_event; 1428 struct Scsi_Host *shost; 1429 1430 board_event.event_type = FC_REG_BOARD_EVENT; 1431 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1432 shost = lpfc_shost_from_vport(phba->pport); 1433 fc_host_post_vendor_event(shost, fc_get_event_number(), 1434 sizeof(board_event), 1435 (char *) &board_event, 1436 LPFC_NL_VENDOR_ID); 1437} 1438 1439/** 1440 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1441 * @phba: pointer to lpfc hba data structure. 1442 * 1443 * This routine is invoked to handle the following HBA hardware error 1444 * conditions: 1445 * 1 - HBA error attention interrupt 1446 * 2 - DMA ring index out of range 1447 * 3 - Mailbox command came back as unknown 1448 **/ 1449static void 1450lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1451{ 1452 struct lpfc_vport *vport = phba->pport; 1453 struct lpfc_sli *psli = &phba->sli; 1454 uint32_t event_data; 1455 unsigned long temperature; 1456 struct temp_event temp_event_data; 1457 struct Scsi_Host *shost; 1458 1459 /* If the pci channel is offline, ignore possible errors, 1460 * since we cannot communicate with the pci card anyway. 1461 */ 1462 if (pci_channel_offline(phba->pcidev)) { 1463 spin_lock_irq(&phba->hbalock); 1464 phba->hba_flag &= ~DEFER_ERATT; 1465 spin_unlock_irq(&phba->hbalock); 1466 return; 1467 } 1468 1469 /* If resets are disabled then leave the HBA alone and return */ 1470 if (!phba->cfg_enable_hba_reset) 1471 return; 1472 1473 /* Send an internal error event to mgmt application */ 1474 lpfc_board_errevt_to_mgmt(phba); 1475 1476 if (phba->hba_flag & DEFER_ERATT) 1477 lpfc_handle_deferred_eratt(phba); 1478 1479 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1480 if (phba->work_hs & HS_FFER6) 1481 /* Re-establishing Link */ 1482 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1483 "1301 Re-establishing Link " 1484 "Data: x%x x%x x%x\n", 1485 phba->work_hs, phba->work_status[0], 1486 phba->work_status[1]); 1487 if (phba->work_hs & HS_FFER8) 1488 /* Device Zeroization */ 1489 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1490 "2861 Host Authentication device " 1491 "zeroization Data:x%x x%x x%x\n", 1492 phba->work_hs, phba->work_status[0], 1493 phba->work_status[1]); 1494 1495 spin_lock_irq(&phba->hbalock); 1496 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1497 spin_unlock_irq(&phba->hbalock); 1498 1499 /* 1500 * Firmware stops when it triggled erratt with HS_FFER6. 1501 * That could cause the I/Os dropped by the firmware. 1502 * Error iocb (I/O) on txcmplq and let the SCSI layer 1503 * retry it after re-establishing link. 1504 */ 1505 lpfc_sli_abort_fcp_rings(phba); 1506 1507 /* 1508 * There was a firmware error. Take the hba offline and then 1509 * attempt to restart it. 1510 */ 1511 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1512 lpfc_offline(phba); 1513 lpfc_sli_brdrestart(phba); 1514 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1515 lpfc_unblock_mgmt_io(phba); 1516 return; 1517 } 1518 lpfc_unblock_mgmt_io(phba); 1519 } else if (phba->work_hs & HS_CRIT_TEMP) { 1520 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1521 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1522 temp_event_data.event_code = LPFC_CRIT_TEMP; 1523 temp_event_data.data = (uint32_t)temperature; 1524 1525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1526 "0406 Adapter maximum temperature exceeded " 1527 "(%ld), taking this port offline " 1528 "Data: x%x x%x x%x\n", 1529 temperature, phba->work_hs, 1530 phba->work_status[0], phba->work_status[1]); 1531 1532 shost = lpfc_shost_from_vport(phba->pport); 1533 fc_host_post_vendor_event(shost, fc_get_event_number(), 1534 sizeof(temp_event_data), 1535 (char *) &temp_event_data, 1536 SCSI_NL_VID_TYPE_PCI 1537 | PCI_VENDOR_ID_EMULEX); 1538 1539 spin_lock_irq(&phba->hbalock); 1540 phba->over_temp_state = HBA_OVER_TEMP; 1541 spin_unlock_irq(&phba->hbalock); 1542 lpfc_offline_eratt(phba); 1543 1544 } else { 1545 /* The if clause above forces this code path when the status 1546 * failure is a value other than FFER6. Do not call the offline 1547 * twice. This is the adapter hardware error path. 1548 */ 1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1550 "0457 Adapter Hardware Error " 1551 "Data: x%x x%x x%x\n", 1552 phba->work_hs, 1553 phba->work_status[0], phba->work_status[1]); 1554 1555 event_data = FC_REG_DUMP_EVENT; 1556 shost = lpfc_shost_from_vport(vport); 1557 fc_host_post_vendor_event(shost, fc_get_event_number(), 1558 sizeof(event_data), (char *) &event_data, 1559 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1560 1561 lpfc_offline_eratt(phba); 1562 } 1563 return; 1564} 1565 1566/** 1567 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1568 * @phba: pointer to lpfc hba data structure. 1569 * @mbx_action: flag for mailbox shutdown action. 1570 * 1571 * This routine is invoked to perform an SLI4 port PCI function reset in 1572 * response to port status register polling attention. It waits for port 1573 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1574 * During this process, interrupt vectors are freed and later requested 1575 * for handling possible port resource change. 1576 **/ 1577static int 1578lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1579 bool en_rn_msg) 1580{ 1581 int rc; 1582 uint32_t intr_mode; 1583 1584 /* 1585 * On error status condition, driver need to wait for port 1586 * ready before performing reset. 1587 */ 1588 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1589 if (!rc) { 1590 /* need reset: attempt for port recovery */ 1591 if (en_rn_msg) 1592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1593 "2887 Reset Needed: Attempting Port " 1594 "Recovery...\n"); 1595 lpfc_offline_prep(phba, mbx_action); 1596 lpfc_offline(phba); 1597 /* release interrupt for possible resource change */ 1598 lpfc_sli4_disable_intr(phba); 1599 lpfc_sli_brdrestart(phba); 1600 /* request and enable interrupt */ 1601 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1602 if (intr_mode == LPFC_INTR_ERROR) { 1603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1604 "3175 Failed to enable interrupt\n"); 1605 return -EIO; 1606 } else { 1607 phba->intr_mode = intr_mode; 1608 } 1609 rc = lpfc_online(phba); 1610 if (rc == 0) 1611 lpfc_unblock_mgmt_io(phba); 1612 } 1613 return rc; 1614} 1615 1616/** 1617 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1618 * @phba: pointer to lpfc hba data structure. 1619 * 1620 * This routine is invoked to handle the SLI4 HBA hardware error attention 1621 * conditions. 1622 **/ 1623static void 1624lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1625{ 1626 struct lpfc_vport *vport = phba->pport; 1627 uint32_t event_data; 1628 struct Scsi_Host *shost; 1629 uint32_t if_type; 1630 struct lpfc_register portstat_reg = {0}; 1631 uint32_t reg_err1, reg_err2; 1632 uint32_t uerrlo_reg, uemasklo_reg; 1633 uint32_t pci_rd_rc1, pci_rd_rc2; 1634 bool en_rn_msg = true; 1635 struct temp_event temp_event_data; 1636 int rc; 1637 1638 /* If the pci channel is offline, ignore possible errors, since 1639 * we cannot communicate with the pci card anyway. 1640 */ 1641 if (pci_channel_offline(phba->pcidev)) 1642 return; 1643 1644 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1645 switch (if_type) { 1646 case LPFC_SLI_INTF_IF_TYPE_0: 1647 pci_rd_rc1 = lpfc_readl( 1648 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1649 &uerrlo_reg); 1650 pci_rd_rc2 = lpfc_readl( 1651 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1652 &uemasklo_reg); 1653 /* consider PCI bus read error as pci_channel_offline */ 1654 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1655 return; 1656 lpfc_sli4_offline_eratt(phba); 1657 break; 1658 1659 case LPFC_SLI_INTF_IF_TYPE_2: 1660 pci_rd_rc1 = lpfc_readl( 1661 phba->sli4_hba.u.if_type2.STATUSregaddr, 1662 &portstat_reg.word0); 1663 /* consider PCI bus read error as pci_channel_offline */ 1664 if (pci_rd_rc1 == -EIO) { 1665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1666 "3151 PCI bus read access failure: x%x\n", 1667 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1668 return; 1669 } 1670 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1671 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1672 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1674 "2889 Port Overtemperature event, " 1675 "taking port offline Data: x%x x%x\n", 1676 reg_err1, reg_err2); 1677 1678 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1679 temp_event_data.event_code = LPFC_CRIT_TEMP; 1680 temp_event_data.data = 0xFFFFFFFF; 1681 1682 shost = lpfc_shost_from_vport(phba->pport); 1683 fc_host_post_vendor_event(shost, fc_get_event_number(), 1684 sizeof(temp_event_data), 1685 (char *)&temp_event_data, 1686 SCSI_NL_VID_TYPE_PCI 1687 | PCI_VENDOR_ID_EMULEX); 1688 1689 spin_lock_irq(&phba->hbalock); 1690 phba->over_temp_state = HBA_OVER_TEMP; 1691 spin_unlock_irq(&phba->hbalock); 1692 lpfc_sli4_offline_eratt(phba); 1693 return; 1694 } 1695 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1696 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1698 "3143 Port Down: Firmware Update " 1699 "Detected\n"); 1700 en_rn_msg = false; 1701 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1702 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1704 "3144 Port Down: Debug Dump\n"); 1705 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1706 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1708 "3145 Port Down: Provisioning\n"); 1709 1710 /* If resets are disabled then leave the HBA alone and return */ 1711 if (!phba->cfg_enable_hba_reset) 1712 return; 1713 1714 /* Check port status register for function reset */ 1715 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1716 en_rn_msg); 1717 if (rc == 0) { 1718 /* don't report event on forced debug dump */ 1719 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1720 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1721 return; 1722 else 1723 break; 1724 } 1725 /* fall through for not able to recover */ 1726 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1727 "3152 Unrecoverable error, bring the port " 1728 "offline\n"); 1729 lpfc_sli4_offline_eratt(phba); 1730 break; 1731 case LPFC_SLI_INTF_IF_TYPE_1: 1732 default: 1733 break; 1734 } 1735 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1736 "3123 Report dump event to upper layer\n"); 1737 /* Send an internal error event to mgmt application */ 1738 lpfc_board_errevt_to_mgmt(phba); 1739 1740 event_data = FC_REG_DUMP_EVENT; 1741 shost = lpfc_shost_from_vport(vport); 1742 fc_host_post_vendor_event(shost, fc_get_event_number(), 1743 sizeof(event_data), (char *) &event_data, 1744 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1745} 1746 1747/** 1748 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1749 * @phba: pointer to lpfc HBA data structure. 1750 * 1751 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1752 * routine from the API jump table function pointer from the lpfc_hba struct. 1753 * 1754 * Return codes 1755 * 0 - success. 1756 * Any other value - error. 1757 **/ 1758void 1759lpfc_handle_eratt(struct lpfc_hba *phba) 1760{ 1761 (*phba->lpfc_handle_eratt)(phba); 1762} 1763 1764/** 1765 * lpfc_handle_latt - The HBA link event handler 1766 * @phba: pointer to lpfc hba data structure. 1767 * 1768 * This routine is invoked from the worker thread to handle a HBA host 1769 * attention link event. 1770 **/ 1771void 1772lpfc_handle_latt(struct lpfc_hba *phba) 1773{ 1774 struct lpfc_vport *vport = phba->pport; 1775 struct lpfc_sli *psli = &phba->sli; 1776 LPFC_MBOXQ_t *pmb; 1777 volatile uint32_t control; 1778 struct lpfc_dmabuf *mp; 1779 int rc = 0; 1780 1781 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1782 if (!pmb) { 1783 rc = 1; 1784 goto lpfc_handle_latt_err_exit; 1785 } 1786 1787 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1788 if (!mp) { 1789 rc = 2; 1790 goto lpfc_handle_latt_free_pmb; 1791 } 1792 1793 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1794 if (!mp->virt) { 1795 rc = 3; 1796 goto lpfc_handle_latt_free_mp; 1797 } 1798 1799 /* Cleanup any outstanding ELS commands */ 1800 lpfc_els_flush_all_cmd(phba); 1801 1802 psli->slistat.link_event++; 1803 lpfc_read_topology(phba, pmb, mp); 1804 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1805 pmb->vport = vport; 1806 /* Block ELS IOCBs until we have processed this mbox command */ 1807 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1808 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1809 if (rc == MBX_NOT_FINISHED) { 1810 rc = 4; 1811 goto lpfc_handle_latt_free_mbuf; 1812 } 1813 1814 /* Clear Link Attention in HA REG */ 1815 spin_lock_irq(&phba->hbalock); 1816 writel(HA_LATT, phba->HAregaddr); 1817 readl(phba->HAregaddr); /* flush */ 1818 spin_unlock_irq(&phba->hbalock); 1819 1820 return; 1821 1822lpfc_handle_latt_free_mbuf: 1823 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1824 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1825lpfc_handle_latt_free_mp: 1826 kfree(mp); 1827lpfc_handle_latt_free_pmb: 1828 mempool_free(pmb, phba->mbox_mem_pool); 1829lpfc_handle_latt_err_exit: 1830 /* Enable Link attention interrupts */ 1831 spin_lock_irq(&phba->hbalock); 1832 psli->sli_flag |= LPFC_PROCESS_LA; 1833 control = readl(phba->HCregaddr); 1834 control |= HC_LAINT_ENA; 1835 writel(control, phba->HCregaddr); 1836 readl(phba->HCregaddr); /* flush */ 1837 1838 /* Clear Link Attention in HA REG */ 1839 writel(HA_LATT, phba->HAregaddr); 1840 readl(phba->HAregaddr); /* flush */ 1841 spin_unlock_irq(&phba->hbalock); 1842 lpfc_linkdown(phba); 1843 phba->link_state = LPFC_HBA_ERROR; 1844 1845 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1846 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1847 1848 return; 1849} 1850 1851/** 1852 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1853 * @phba: pointer to lpfc hba data structure. 1854 * @vpd: pointer to the vital product data. 1855 * @len: length of the vital product data in bytes. 1856 * 1857 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1858 * an array of characters. In this routine, the ModelName, ProgramType, and 1859 * ModelDesc, etc. fields of the phba data structure will be populated. 1860 * 1861 * Return codes 1862 * 0 - pointer to the VPD passed in is NULL 1863 * 1 - success 1864 **/ 1865int 1866lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1867{ 1868 uint8_t lenlo, lenhi; 1869 int Length; 1870 int i, j; 1871 int finished = 0; 1872 int index = 0; 1873 1874 if (!vpd) 1875 return 0; 1876 1877 /* Vital Product */ 1878 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1879 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1880 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1881 (uint32_t) vpd[3]); 1882 while (!finished && (index < (len - 4))) { 1883 switch (vpd[index]) { 1884 case 0x82: 1885 case 0x91: 1886 index += 1; 1887 lenlo = vpd[index]; 1888 index += 1; 1889 lenhi = vpd[index]; 1890 index += 1; 1891 i = ((((unsigned short)lenhi) << 8) + lenlo); 1892 index += i; 1893 break; 1894 case 0x90: 1895 index += 1; 1896 lenlo = vpd[index]; 1897 index += 1; 1898 lenhi = vpd[index]; 1899 index += 1; 1900 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1901 if (Length > len - index) 1902 Length = len - index; 1903 while (Length > 0) { 1904 /* Look for Serial Number */ 1905 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1906 index += 2; 1907 i = vpd[index]; 1908 index += 1; 1909 j = 0; 1910 Length -= (3+i); 1911 while(i--) { 1912 phba->SerialNumber[j++] = vpd[index++]; 1913 if (j == 31) 1914 break; 1915 } 1916 phba->SerialNumber[j] = 0; 1917 continue; 1918 } 1919 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1920 phba->vpd_flag |= VPD_MODEL_DESC; 1921 index += 2; 1922 i = vpd[index]; 1923 index += 1; 1924 j = 0; 1925 Length -= (3+i); 1926 while(i--) { 1927 phba->ModelDesc[j++] = vpd[index++]; 1928 if (j == 255) 1929 break; 1930 } 1931 phba->ModelDesc[j] = 0; 1932 continue; 1933 } 1934 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1935 phba->vpd_flag |= VPD_MODEL_NAME; 1936 index += 2; 1937 i = vpd[index]; 1938 index += 1; 1939 j = 0; 1940 Length -= (3+i); 1941 while(i--) { 1942 phba->ModelName[j++] = vpd[index++]; 1943 if (j == 79) 1944 break; 1945 } 1946 phba->ModelName[j] = 0; 1947 continue; 1948 } 1949 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1950 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1951 index += 2; 1952 i = vpd[index]; 1953 index += 1; 1954 j = 0; 1955 Length -= (3+i); 1956 while(i--) { 1957 phba->ProgramType[j++] = vpd[index++]; 1958 if (j == 255) 1959 break; 1960 } 1961 phba->ProgramType[j] = 0; 1962 continue; 1963 } 1964 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1965 phba->vpd_flag |= VPD_PORT; 1966 index += 2; 1967 i = vpd[index]; 1968 index += 1; 1969 j = 0; 1970 Length -= (3+i); 1971 while(i--) { 1972 if ((phba->sli_rev == LPFC_SLI_REV4) && 1973 (phba->sli4_hba.pport_name_sta == 1974 LPFC_SLI4_PPNAME_GET)) { 1975 j++; 1976 index++; 1977 } else 1978 phba->Port[j++] = vpd[index++]; 1979 if (j == 19) 1980 break; 1981 } 1982 if ((phba->sli_rev != LPFC_SLI_REV4) || 1983 (phba->sli4_hba.pport_name_sta == 1984 LPFC_SLI4_PPNAME_NON)) 1985 phba->Port[j] = 0; 1986 continue; 1987 } 1988 else { 1989 index += 2; 1990 i = vpd[index]; 1991 index += 1; 1992 index += i; 1993 Length -= (3 + i); 1994 } 1995 } 1996 finished = 0; 1997 break; 1998 case 0x78: 1999 finished = 1; 2000 break; 2001 default: 2002 index ++; 2003 break; 2004 } 2005 } 2006 2007 return(1); 2008} 2009 2010/** 2011 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2012 * @phba: pointer to lpfc hba data structure. 2013 * @mdp: pointer to the data structure to hold the derived model name. 2014 * @descp: pointer to the data structure to hold the derived description. 2015 * 2016 * This routine retrieves HBA's description based on its registered PCI device 2017 * ID. The @descp passed into this function points to an array of 256 chars. It 2018 * shall be returned with the model name, maximum speed, and the host bus type. 2019 * The @mdp passed into this function points to an array of 80 chars. When the 2020 * function returns, the @mdp will be filled with the model name. 2021 **/ 2022static void 2023lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2024{ 2025 lpfc_vpd_t *vp; 2026 uint16_t dev_id = phba->pcidev->device; 2027 int max_speed; 2028 int GE = 0; 2029 int oneConnect = 0; /* default is not a oneConnect */ 2030 struct { 2031 char *name; 2032 char *bus; 2033 char *function; 2034 } m = {"<Unknown>", "", ""}; 2035 2036 if (mdp && mdp[0] != '\0' 2037 && descp && descp[0] != '\0') 2038 return; 2039 2040 if (phba->lmt & LMT_32Gb) 2041 max_speed = 32; 2042 else if (phba->lmt & LMT_16Gb) 2043 max_speed = 16; 2044 else if (phba->lmt & LMT_10Gb) 2045 max_speed = 10; 2046 else if (phba->lmt & LMT_8Gb) 2047 max_speed = 8; 2048 else if (phba->lmt & LMT_4Gb) 2049 max_speed = 4; 2050 else if (phba->lmt & LMT_2Gb) 2051 max_speed = 2; 2052 else if (phba->lmt & LMT_1Gb) 2053 max_speed = 1; 2054 else 2055 max_speed = 0; 2056 2057 vp = &phba->vpd; 2058 2059 switch (dev_id) { 2060 case PCI_DEVICE_ID_FIREFLY: 2061 m = (typeof(m)){"LP6000", "PCI", 2062 "Obsolete, Unsupported Fibre Channel Adapter"}; 2063 break; 2064 case PCI_DEVICE_ID_SUPERFLY: 2065 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2066 m = (typeof(m)){"LP7000", "PCI", ""}; 2067 else 2068 m = (typeof(m)){"LP7000E", "PCI", ""}; 2069 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2070 break; 2071 case PCI_DEVICE_ID_DRAGONFLY: 2072 m = (typeof(m)){"LP8000", "PCI", 2073 "Obsolete, Unsupported Fibre Channel Adapter"}; 2074 break; 2075 case PCI_DEVICE_ID_CENTAUR: 2076 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2077 m = (typeof(m)){"LP9002", "PCI", ""}; 2078 else 2079 m = (typeof(m)){"LP9000", "PCI", ""}; 2080 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2081 break; 2082 case PCI_DEVICE_ID_RFLY: 2083 m = (typeof(m)){"LP952", "PCI", 2084 "Obsolete, Unsupported Fibre Channel Adapter"}; 2085 break; 2086 case PCI_DEVICE_ID_PEGASUS: 2087 m = (typeof(m)){"LP9802", "PCI-X", 2088 "Obsolete, Unsupported Fibre Channel Adapter"}; 2089 break; 2090 case PCI_DEVICE_ID_THOR: 2091 m = (typeof(m)){"LP10000", "PCI-X", 2092 "Obsolete, Unsupported Fibre Channel Adapter"}; 2093 break; 2094 case PCI_DEVICE_ID_VIPER: 2095 m = (typeof(m)){"LPX1000", "PCI-X", 2096 "Obsolete, Unsupported Fibre Channel Adapter"}; 2097 break; 2098 case PCI_DEVICE_ID_PFLY: 2099 m = (typeof(m)){"LP982", "PCI-X", 2100 "Obsolete, Unsupported Fibre Channel Adapter"}; 2101 break; 2102 case PCI_DEVICE_ID_TFLY: 2103 m = (typeof(m)){"LP1050", "PCI-X", 2104 "Obsolete, Unsupported Fibre Channel Adapter"}; 2105 break; 2106 case PCI_DEVICE_ID_HELIOS: 2107 m = (typeof(m)){"LP11000", "PCI-X2", 2108 "Obsolete, Unsupported Fibre Channel Adapter"}; 2109 break; 2110 case PCI_DEVICE_ID_HELIOS_SCSP: 2111 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2112 "Obsolete, Unsupported Fibre Channel Adapter"}; 2113 break; 2114 case PCI_DEVICE_ID_HELIOS_DCSP: 2115 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2116 "Obsolete, Unsupported Fibre Channel Adapter"}; 2117 break; 2118 case PCI_DEVICE_ID_NEPTUNE: 2119 m = (typeof(m)){"LPe1000", "PCIe", 2120 "Obsolete, Unsupported Fibre Channel Adapter"}; 2121 break; 2122 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2123 m = (typeof(m)){"LPe1000-SP", "PCIe", 2124 "Obsolete, Unsupported Fibre Channel Adapter"}; 2125 break; 2126 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2127 m = (typeof(m)){"LPe1002-SP", "PCIe", 2128 "Obsolete, Unsupported Fibre Channel Adapter"}; 2129 break; 2130 case PCI_DEVICE_ID_BMID: 2131 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2132 break; 2133 case PCI_DEVICE_ID_BSMB: 2134 m = (typeof(m)){"LP111", "PCI-X2", 2135 "Obsolete, Unsupported Fibre Channel Adapter"}; 2136 break; 2137 case PCI_DEVICE_ID_ZEPHYR: 2138 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2139 break; 2140 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2141 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2142 break; 2143 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2144 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2145 GE = 1; 2146 break; 2147 case PCI_DEVICE_ID_ZMID: 2148 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2149 break; 2150 case PCI_DEVICE_ID_ZSMB: 2151 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2152 break; 2153 case PCI_DEVICE_ID_LP101: 2154 m = (typeof(m)){"LP101", "PCI-X", 2155 "Obsolete, Unsupported Fibre Channel Adapter"}; 2156 break; 2157 case PCI_DEVICE_ID_LP10000S: 2158 m = (typeof(m)){"LP10000-S", "PCI", 2159 "Obsolete, Unsupported Fibre Channel Adapter"}; 2160 break; 2161 case PCI_DEVICE_ID_LP11000S: 2162 m = (typeof(m)){"LP11000-S", "PCI-X2", 2163 "Obsolete, Unsupported Fibre Channel Adapter"}; 2164 break; 2165 case PCI_DEVICE_ID_LPE11000S: 2166 m = (typeof(m)){"LPe11000-S", "PCIe", 2167 "Obsolete, Unsupported Fibre Channel Adapter"}; 2168 break; 2169 case PCI_DEVICE_ID_SAT: 2170 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2171 break; 2172 case PCI_DEVICE_ID_SAT_MID: 2173 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2174 break; 2175 case PCI_DEVICE_ID_SAT_SMB: 2176 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2177 break; 2178 case PCI_DEVICE_ID_SAT_DCSP: 2179 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2180 break; 2181 case PCI_DEVICE_ID_SAT_SCSP: 2182 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2183 break; 2184 case PCI_DEVICE_ID_SAT_S: 2185 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2186 break; 2187 case PCI_DEVICE_ID_HORNET: 2188 m = (typeof(m)){"LP21000", "PCIe", 2189 "Obsolete, Unsupported FCoE Adapter"}; 2190 GE = 1; 2191 break; 2192 case PCI_DEVICE_ID_PROTEUS_VF: 2193 m = (typeof(m)){"LPev12000", "PCIe IOV", 2194 "Obsolete, Unsupported Fibre Channel Adapter"}; 2195 break; 2196 case PCI_DEVICE_ID_PROTEUS_PF: 2197 m = (typeof(m)){"LPev12000", "PCIe IOV", 2198 "Obsolete, Unsupported Fibre Channel Adapter"}; 2199 break; 2200 case PCI_DEVICE_ID_PROTEUS_S: 2201 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2202 "Obsolete, Unsupported Fibre Channel Adapter"}; 2203 break; 2204 case PCI_DEVICE_ID_TIGERSHARK: 2205 oneConnect = 1; 2206 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2207 break; 2208 case PCI_DEVICE_ID_TOMCAT: 2209 oneConnect = 1; 2210 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2211 break; 2212 case PCI_DEVICE_ID_FALCON: 2213 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2214 "EmulexSecure Fibre"}; 2215 break; 2216 case PCI_DEVICE_ID_BALIUS: 2217 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2218 "Obsolete, Unsupported Fibre Channel Adapter"}; 2219 break; 2220 case PCI_DEVICE_ID_LANCER_FC: 2221 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2222 break; 2223 case PCI_DEVICE_ID_LANCER_FC_VF: 2224 m = (typeof(m)){"LPe16000", "PCIe", 2225 "Obsolete, Unsupported Fibre Channel Adapter"}; 2226 break; 2227 case PCI_DEVICE_ID_LANCER_FCOE: 2228 oneConnect = 1; 2229 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2230 break; 2231 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2232 oneConnect = 1; 2233 m = (typeof(m)){"OCe15100", "PCIe", 2234 "Obsolete, Unsupported FCoE"}; 2235 break; 2236 case PCI_DEVICE_ID_LANCER_G6_FC: 2237 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2238 break; 2239 case PCI_DEVICE_ID_SKYHAWK: 2240 case PCI_DEVICE_ID_SKYHAWK_VF: 2241 oneConnect = 1; 2242 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2243 break; 2244 default: 2245 m = (typeof(m)){"Unknown", "", ""}; 2246 break; 2247 } 2248 2249 if (mdp && mdp[0] == '\0') 2250 snprintf(mdp, 79,"%s", m.name); 2251 /* 2252 * oneConnect hba requires special processing, they are all initiators 2253 * and we put the port number on the end 2254 */ 2255 if (descp && descp[0] == '\0') { 2256 if (oneConnect) 2257 snprintf(descp, 255, 2258 "Emulex OneConnect %s, %s Initiator %s", 2259 m.name, m.function, 2260 phba->Port); 2261 else if (max_speed == 0) 2262 snprintf(descp, 255, 2263 "Emulex %s %s %s", 2264 m.name, m.bus, m.function); 2265 else 2266 snprintf(descp, 255, 2267 "Emulex %s %d%s %s %s", 2268 m.name, max_speed, (GE) ? "GE" : "Gb", 2269 m.bus, m.function); 2270 } 2271} 2272 2273/** 2274 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2275 * @phba: pointer to lpfc hba data structure. 2276 * @pring: pointer to a IOCB ring. 2277 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2278 * 2279 * This routine posts a given number of IOCBs with the associated DMA buffer 2280 * descriptors specified by the cnt argument to the given IOCB ring. 2281 * 2282 * Return codes 2283 * The number of IOCBs NOT able to be posted to the IOCB ring. 2284 **/ 2285int 2286lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2287{ 2288 IOCB_t *icmd; 2289 struct lpfc_iocbq *iocb; 2290 struct lpfc_dmabuf *mp1, *mp2; 2291 2292 cnt += pring->missbufcnt; 2293 2294 /* While there are buffers to post */ 2295 while (cnt > 0) { 2296 /* Allocate buffer for command iocb */ 2297 iocb = lpfc_sli_get_iocbq(phba); 2298 if (iocb == NULL) { 2299 pring->missbufcnt = cnt; 2300 return cnt; 2301 } 2302 icmd = &iocb->iocb; 2303 2304 /* 2 buffers can be posted per command */ 2305 /* Allocate buffer to post */ 2306 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2307 if (mp1) 2308 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2309 if (!mp1 || !mp1->virt) { 2310 kfree(mp1); 2311 lpfc_sli_release_iocbq(phba, iocb); 2312 pring->missbufcnt = cnt; 2313 return cnt; 2314 } 2315 2316 INIT_LIST_HEAD(&mp1->list); 2317 /* Allocate buffer to post */ 2318 if (cnt > 1) { 2319 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2320 if (mp2) 2321 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2322 &mp2->phys); 2323 if (!mp2 || !mp2->virt) { 2324 kfree(mp2); 2325 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2326 kfree(mp1); 2327 lpfc_sli_release_iocbq(phba, iocb); 2328 pring->missbufcnt = cnt; 2329 return cnt; 2330 } 2331 2332 INIT_LIST_HEAD(&mp2->list); 2333 } else { 2334 mp2 = NULL; 2335 } 2336 2337 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2338 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2339 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2340 icmd->ulpBdeCount = 1; 2341 cnt--; 2342 if (mp2) { 2343 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2344 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2345 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2346 cnt--; 2347 icmd->ulpBdeCount = 2; 2348 } 2349 2350 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2351 icmd->ulpLe = 1; 2352 2353 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2354 IOCB_ERROR) { 2355 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2356 kfree(mp1); 2357 cnt++; 2358 if (mp2) { 2359 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2360 kfree(mp2); 2361 cnt++; 2362 } 2363 lpfc_sli_release_iocbq(phba, iocb); 2364 pring->missbufcnt = cnt; 2365 return cnt; 2366 } 2367 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2368 if (mp2) 2369 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2370 } 2371 pring->missbufcnt = 0; 2372 return 0; 2373} 2374 2375/** 2376 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2377 * @phba: pointer to lpfc hba data structure. 2378 * 2379 * This routine posts initial receive IOCB buffers to the ELS ring. The 2380 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2381 * set to 64 IOCBs. 2382 * 2383 * Return codes 2384 * 0 - success (currently always success) 2385 **/ 2386static int 2387lpfc_post_rcv_buf(struct lpfc_hba *phba) 2388{ 2389 struct lpfc_sli *psli = &phba->sli; 2390 2391 /* Ring 0, ELS / CT buffers */ 2392 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2393 /* Ring 2 - FCP no buffers needed */ 2394 2395 return 0; 2396} 2397 2398#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2399 2400/** 2401 * lpfc_sha_init - Set up initial array of hash table entries 2402 * @HashResultPointer: pointer to an array as hash table. 2403 * 2404 * This routine sets up the initial values to the array of hash table entries 2405 * for the LC HBAs. 2406 **/ 2407static void 2408lpfc_sha_init(uint32_t * HashResultPointer) 2409{ 2410 HashResultPointer[0] = 0x67452301; 2411 HashResultPointer[1] = 0xEFCDAB89; 2412 HashResultPointer[2] = 0x98BADCFE; 2413 HashResultPointer[3] = 0x10325476; 2414 HashResultPointer[4] = 0xC3D2E1F0; 2415} 2416 2417/** 2418 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2419 * @HashResultPointer: pointer to an initial/result hash table. 2420 * @HashWorkingPointer: pointer to an working hash table. 2421 * 2422 * This routine iterates an initial hash table pointed by @HashResultPointer 2423 * with the values from the working hash table pointeed by @HashWorkingPointer. 2424 * The results are putting back to the initial hash table, returned through 2425 * the @HashResultPointer as the result hash table. 2426 **/ 2427static void 2428lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2429{ 2430 int t; 2431 uint32_t TEMP; 2432 uint32_t A, B, C, D, E; 2433 t = 16; 2434 do { 2435 HashWorkingPointer[t] = 2436 S(1, 2437 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2438 8] ^ 2439 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2440 } while (++t <= 79); 2441 t = 0; 2442 A = HashResultPointer[0]; 2443 B = HashResultPointer[1]; 2444 C = HashResultPointer[2]; 2445 D = HashResultPointer[3]; 2446 E = HashResultPointer[4]; 2447 2448 do { 2449 if (t < 20) { 2450 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2451 } else if (t < 40) { 2452 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2453 } else if (t < 60) { 2454 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2455 } else { 2456 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2457 } 2458 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2459 E = D; 2460 D = C; 2461 C = S(30, B); 2462 B = A; 2463 A = TEMP; 2464 } while (++t <= 79); 2465 2466 HashResultPointer[0] += A; 2467 HashResultPointer[1] += B; 2468 HashResultPointer[2] += C; 2469 HashResultPointer[3] += D; 2470 HashResultPointer[4] += E; 2471 2472} 2473 2474/** 2475 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2476 * @RandomChallenge: pointer to the entry of host challenge random number array. 2477 * @HashWorking: pointer to the entry of the working hash array. 2478 * 2479 * This routine calculates the working hash array referred by @HashWorking 2480 * from the challenge random numbers associated with the host, referred by 2481 * @RandomChallenge. The result is put into the entry of the working hash 2482 * array and returned by reference through @HashWorking. 2483 **/ 2484static void 2485lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2486{ 2487 *HashWorking = (*RandomChallenge ^ *HashWorking); 2488} 2489 2490/** 2491 * lpfc_hba_init - Perform special handling for LC HBA initialization 2492 * @phba: pointer to lpfc hba data structure. 2493 * @hbainit: pointer to an array of unsigned 32-bit integers. 2494 * 2495 * This routine performs the special handling for LC HBA initialization. 2496 **/ 2497void 2498lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2499{ 2500 int t; 2501 uint32_t *HashWorking; 2502 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2503 2504 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2505 if (!HashWorking) 2506 return; 2507 2508 HashWorking[0] = HashWorking[78] = *pwwnn++; 2509 HashWorking[1] = HashWorking[79] = *pwwnn; 2510 2511 for (t = 0; t < 7; t++) 2512 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2513 2514 lpfc_sha_init(hbainit); 2515 lpfc_sha_iterate(hbainit, HashWorking); 2516 kfree(HashWorking); 2517} 2518 2519/** 2520 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2521 * @vport: pointer to a virtual N_Port data structure. 2522 * 2523 * This routine performs the necessary cleanups before deleting the @vport. 2524 * It invokes the discovery state machine to perform necessary state 2525 * transitions and to release the ndlps associated with the @vport. Note, 2526 * the physical port is treated as @vport 0. 2527 **/ 2528void 2529lpfc_cleanup(struct lpfc_vport *vport) 2530{ 2531 struct lpfc_hba *phba = vport->phba; 2532 struct lpfc_nodelist *ndlp, *next_ndlp; 2533 int i = 0; 2534 2535 if (phba->link_state > LPFC_LINK_DOWN) 2536 lpfc_port_link_failure(vport); 2537 2538 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2539 if (!NLP_CHK_NODE_ACT(ndlp)) { 2540 ndlp = lpfc_enable_node(vport, ndlp, 2541 NLP_STE_UNUSED_NODE); 2542 if (!ndlp) 2543 continue; 2544 spin_lock_irq(&phba->ndlp_lock); 2545 NLP_SET_FREE_REQ(ndlp); 2546 spin_unlock_irq(&phba->ndlp_lock); 2547 /* Trigger the release of the ndlp memory */ 2548 lpfc_nlp_put(ndlp); 2549 continue; 2550 } 2551 spin_lock_irq(&phba->ndlp_lock); 2552 if (NLP_CHK_FREE_REQ(ndlp)) { 2553 /* The ndlp should not be in memory free mode already */ 2554 spin_unlock_irq(&phba->ndlp_lock); 2555 continue; 2556 } else 2557 /* Indicate request for freeing ndlp memory */ 2558 NLP_SET_FREE_REQ(ndlp); 2559 spin_unlock_irq(&phba->ndlp_lock); 2560 2561 if (vport->port_type != LPFC_PHYSICAL_PORT && 2562 ndlp->nlp_DID == Fabric_DID) { 2563 /* Just free up ndlp with Fabric_DID for vports */ 2564 lpfc_nlp_put(ndlp); 2565 continue; 2566 } 2567 2568 /* take care of nodes in unused state before the state 2569 * machine taking action. 2570 */ 2571 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2572 lpfc_nlp_put(ndlp); 2573 continue; 2574 } 2575 2576 if (ndlp->nlp_type & NLP_FABRIC) 2577 lpfc_disc_state_machine(vport, ndlp, NULL, 2578 NLP_EVT_DEVICE_RECOVERY); 2579 2580 lpfc_disc_state_machine(vport, ndlp, NULL, 2581 NLP_EVT_DEVICE_RM); 2582 } 2583 2584 /* At this point, ALL ndlp's should be gone 2585 * because of the previous NLP_EVT_DEVICE_RM. 2586 * Lets wait for this to happen, if needed. 2587 */ 2588 while (!list_empty(&vport->fc_nodes)) { 2589 if (i++ > 3000) { 2590 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2591 "0233 Nodelist not empty\n"); 2592 list_for_each_entry_safe(ndlp, next_ndlp, 2593 &vport->fc_nodes, nlp_listp) { 2594 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2595 LOG_NODE, 2596 "0282 did:x%x ndlp:x%p " 2597 "usgmap:x%x refcnt:%d\n", 2598 ndlp->nlp_DID, (void *)ndlp, 2599 ndlp->nlp_usg_map, 2600 atomic_read( 2601 &ndlp->kref.refcount)); 2602 } 2603 break; 2604 } 2605 2606 /* Wait for any activity on ndlps to settle */ 2607 msleep(10); 2608 } 2609 lpfc_cleanup_vports_rrqs(vport, NULL); 2610} 2611 2612/** 2613 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2614 * @vport: pointer to a virtual N_Port data structure. 2615 * 2616 * This routine stops all the timers associated with a @vport. This function 2617 * is invoked before disabling or deleting a @vport. Note that the physical 2618 * port is treated as @vport 0. 2619 **/ 2620void 2621lpfc_stop_vport_timers(struct lpfc_vport *vport) 2622{ 2623 del_timer_sync(&vport->els_tmofunc); 2624 del_timer_sync(&vport->fc_fdmitmo); 2625 del_timer_sync(&vport->delayed_disc_tmo); 2626 lpfc_can_disctmo(vport); 2627 return; 2628} 2629 2630/** 2631 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2632 * @phba: pointer to lpfc hba data structure. 2633 * 2634 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2635 * caller of this routine should already hold the host lock. 2636 **/ 2637void 2638__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2639{ 2640 /* Clear pending FCF rediscovery wait flag */ 2641 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2642 2643 /* Now, try to stop the timer */ 2644 del_timer(&phba->fcf.redisc_wait); 2645} 2646 2647/** 2648 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2649 * @phba: pointer to lpfc hba data structure. 2650 * 2651 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2652 * checks whether the FCF rediscovery wait timer is pending with the host 2653 * lock held before proceeding with disabling the timer and clearing the 2654 * wait timer pendig flag. 2655 **/ 2656void 2657lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2658{ 2659 spin_lock_irq(&phba->hbalock); 2660 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2661 /* FCF rediscovery timer already fired or stopped */ 2662 spin_unlock_irq(&phba->hbalock); 2663 return; 2664 } 2665 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2666 /* Clear failover in progress flags */ 2667 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2668 spin_unlock_irq(&phba->hbalock); 2669} 2670 2671/** 2672 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2673 * @phba: pointer to lpfc hba data structure. 2674 * 2675 * This routine stops all the timers associated with a HBA. This function is 2676 * invoked before either putting a HBA offline or unloading the driver. 2677 **/ 2678void 2679lpfc_stop_hba_timers(struct lpfc_hba *phba) 2680{ 2681 lpfc_stop_vport_timers(phba->pport); 2682 del_timer_sync(&phba->sli.mbox_tmo); 2683 del_timer_sync(&phba->fabric_block_timer); 2684 del_timer_sync(&phba->eratt_poll); 2685 del_timer_sync(&phba->hb_tmofunc); 2686 if (phba->sli_rev == LPFC_SLI_REV4) { 2687 del_timer_sync(&phba->rrq_tmr); 2688 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2689 } 2690 phba->hb_outstanding = 0; 2691 2692 switch (phba->pci_dev_grp) { 2693 case LPFC_PCI_DEV_LP: 2694 /* Stop any LightPulse device specific driver timers */ 2695 del_timer_sync(&phba->fcp_poll_timer); 2696 break; 2697 case LPFC_PCI_DEV_OC: 2698 /* Stop any OneConnect device sepcific driver timers */ 2699 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2700 break; 2701 default: 2702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2703 "0297 Invalid device group (x%x)\n", 2704 phba->pci_dev_grp); 2705 break; 2706 } 2707 return; 2708} 2709 2710/** 2711 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2712 * @phba: pointer to lpfc hba data structure. 2713 * 2714 * This routine marks a HBA's management interface as blocked. Once the HBA's 2715 * management interface is marked as blocked, all the user space access to 2716 * the HBA, whether they are from sysfs interface or libdfc interface will 2717 * all be blocked. The HBA is set to block the management interface when the 2718 * driver prepares the HBA interface for online or offline. 2719 **/ 2720static void 2721lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2722{ 2723 unsigned long iflag; 2724 uint8_t actcmd = MBX_HEARTBEAT; 2725 unsigned long timeout; 2726 2727 spin_lock_irqsave(&phba->hbalock, iflag); 2728 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2729 spin_unlock_irqrestore(&phba->hbalock, iflag); 2730 if (mbx_action == LPFC_MBX_NO_WAIT) 2731 return; 2732 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2733 spin_lock_irqsave(&phba->hbalock, iflag); 2734 if (phba->sli.mbox_active) { 2735 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2736 /* Determine how long we might wait for the active mailbox 2737 * command to be gracefully completed by firmware. 2738 */ 2739 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2740 phba->sli.mbox_active) * 1000) + jiffies; 2741 } 2742 spin_unlock_irqrestore(&phba->hbalock, iflag); 2743 2744 /* Wait for the outstnading mailbox command to complete */ 2745 while (phba->sli.mbox_active) { 2746 /* Check active mailbox complete status every 2ms */ 2747 msleep(2); 2748 if (time_after(jiffies, timeout)) { 2749 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2750 "2813 Mgmt IO is Blocked %x " 2751 "- mbox cmd %x still active\n", 2752 phba->sli.sli_flag, actcmd); 2753 break; 2754 } 2755 } 2756} 2757 2758/** 2759 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2760 * @phba: pointer to lpfc hba data structure. 2761 * 2762 * Allocate RPIs for all active remote nodes. This is needed whenever 2763 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2764 * is to fixup the temporary rpi assignments. 2765 **/ 2766void 2767lpfc_sli4_node_prep(struct lpfc_hba *phba) 2768{ 2769 struct lpfc_nodelist *ndlp, *next_ndlp; 2770 struct lpfc_vport **vports; 2771 int i; 2772 2773 if (phba->sli_rev != LPFC_SLI_REV4) 2774 return; 2775 2776 vports = lpfc_create_vport_work_array(phba); 2777 if (vports != NULL) { 2778 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2779 if (vports[i]->load_flag & FC_UNLOADING) 2780 continue; 2781 2782 list_for_each_entry_safe(ndlp, next_ndlp, 2783 &vports[i]->fc_nodes, 2784 nlp_listp) { 2785 if (NLP_CHK_NODE_ACT(ndlp)) { 2786 ndlp->nlp_rpi = 2787 lpfc_sli4_alloc_rpi(phba); 2788 lpfc_printf_vlog(ndlp->vport, KERN_INFO, 2789 LOG_NODE, 2790 "0009 rpi:%x DID:%x " 2791 "flg:%x map:%x %p\n", 2792 ndlp->nlp_rpi, 2793 ndlp->nlp_DID, 2794 ndlp->nlp_flag, 2795 ndlp->nlp_usg_map, 2796 ndlp); 2797 } 2798 } 2799 } 2800 } 2801 lpfc_destroy_vport_work_array(phba, vports); 2802} 2803 2804/** 2805 * lpfc_online - Initialize and bring a HBA online 2806 * @phba: pointer to lpfc hba data structure. 2807 * 2808 * This routine initializes the HBA and brings a HBA online. During this 2809 * process, the management interface is blocked to prevent user space access 2810 * to the HBA interfering with the driver initialization. 2811 * 2812 * Return codes 2813 * 0 - successful 2814 * 1 - failed 2815 **/ 2816int 2817lpfc_online(struct lpfc_hba *phba) 2818{ 2819 struct lpfc_vport *vport; 2820 struct lpfc_vport **vports; 2821 int i; 2822 bool vpis_cleared = false; 2823 2824 if (!phba) 2825 return 0; 2826 vport = phba->pport; 2827 2828 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2829 return 0; 2830 2831 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2832 "0458 Bring Adapter online\n"); 2833 2834 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2835 2836 if (!lpfc_sli_queue_setup(phba)) { 2837 lpfc_unblock_mgmt_io(phba); 2838 return 1; 2839 } 2840 2841 if (phba->sli_rev == LPFC_SLI_REV4) { 2842 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2843 lpfc_unblock_mgmt_io(phba); 2844 return 1; 2845 } 2846 spin_lock_irq(&phba->hbalock); 2847 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2848 vpis_cleared = true; 2849 spin_unlock_irq(&phba->hbalock); 2850 } else { 2851 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2852 lpfc_unblock_mgmt_io(phba); 2853 return 1; 2854 } 2855 } 2856 2857 vports = lpfc_create_vport_work_array(phba); 2858 if (vports != NULL) { 2859 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2860 struct Scsi_Host *shost; 2861 shost = lpfc_shost_from_vport(vports[i]); 2862 spin_lock_irq(shost->host_lock); 2863 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2864 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2865 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2866 if (phba->sli_rev == LPFC_SLI_REV4) { 2867 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2868 if ((vpis_cleared) && 2869 (vports[i]->port_type != 2870 LPFC_PHYSICAL_PORT)) 2871 vports[i]->vpi = 0; 2872 } 2873 spin_unlock_irq(shost->host_lock); 2874 } 2875 } 2876 lpfc_destroy_vport_work_array(phba, vports); 2877 2878 lpfc_unblock_mgmt_io(phba); 2879 return 0; 2880} 2881 2882/** 2883 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2884 * @phba: pointer to lpfc hba data structure. 2885 * 2886 * This routine marks a HBA's management interface as not blocked. Once the 2887 * HBA's management interface is marked as not blocked, all the user space 2888 * access to the HBA, whether they are from sysfs interface or libdfc 2889 * interface will be allowed. The HBA is set to block the management interface 2890 * when the driver prepares the HBA interface for online or offline and then 2891 * set to unblock the management interface afterwards. 2892 **/ 2893void 2894lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2895{ 2896 unsigned long iflag; 2897 2898 spin_lock_irqsave(&phba->hbalock, iflag); 2899 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2900 spin_unlock_irqrestore(&phba->hbalock, iflag); 2901} 2902 2903/** 2904 * lpfc_offline_prep - Prepare a HBA to be brought offline 2905 * @phba: pointer to lpfc hba data structure. 2906 * 2907 * This routine is invoked to prepare a HBA to be brought offline. It performs 2908 * unregistration login to all the nodes on all vports and flushes the mailbox 2909 * queue to make it ready to be brought offline. 2910 **/ 2911void 2912lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2913{ 2914 struct lpfc_vport *vport = phba->pport; 2915 struct lpfc_nodelist *ndlp, *next_ndlp; 2916 struct lpfc_vport **vports; 2917 struct Scsi_Host *shost; 2918 int i; 2919 2920 if (vport->fc_flag & FC_OFFLINE_MODE) 2921 return; 2922 2923 lpfc_block_mgmt_io(phba, mbx_action); 2924 2925 lpfc_linkdown(phba); 2926 2927 /* Issue an unreg_login to all nodes on all vports */ 2928 vports = lpfc_create_vport_work_array(phba); 2929 if (vports != NULL) { 2930 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2931 if (vports[i]->load_flag & FC_UNLOADING) 2932 continue; 2933 shost = lpfc_shost_from_vport(vports[i]); 2934 spin_lock_irq(shost->host_lock); 2935 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2936 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2937 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2938 spin_unlock_irq(shost->host_lock); 2939 2940 shost = lpfc_shost_from_vport(vports[i]); 2941 list_for_each_entry_safe(ndlp, next_ndlp, 2942 &vports[i]->fc_nodes, 2943 nlp_listp) { 2944 if (!NLP_CHK_NODE_ACT(ndlp)) 2945 continue; 2946 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2947 continue; 2948 if (ndlp->nlp_type & NLP_FABRIC) { 2949 lpfc_disc_state_machine(vports[i], ndlp, 2950 NULL, NLP_EVT_DEVICE_RECOVERY); 2951 lpfc_disc_state_machine(vports[i], ndlp, 2952 NULL, NLP_EVT_DEVICE_RM); 2953 } 2954 spin_lock_irq(shost->host_lock); 2955 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2956 spin_unlock_irq(shost->host_lock); 2957 /* 2958 * Whenever an SLI4 port goes offline, free the 2959 * RPI. Get a new RPI when the adapter port 2960 * comes back online. 2961 */ 2962 if (phba->sli_rev == LPFC_SLI_REV4) { 2963 lpfc_printf_vlog(ndlp->vport, 2964 KERN_INFO, LOG_NODE, 2965 "0011 lpfc_offline: " 2966 "ndlp:x%p did %x " 2967 "usgmap:x%x rpi:%x\n", 2968 ndlp, ndlp->nlp_DID, 2969 ndlp->nlp_usg_map, 2970 ndlp->nlp_rpi); 2971 2972 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2973 } 2974 lpfc_unreg_rpi(vports[i], ndlp); 2975 } 2976 } 2977 } 2978 lpfc_destroy_vport_work_array(phba, vports); 2979 2980 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2981} 2982 2983/** 2984 * lpfc_offline - Bring a HBA offline 2985 * @phba: pointer to lpfc hba data structure. 2986 * 2987 * This routine actually brings a HBA offline. It stops all the timers 2988 * associated with the HBA, brings down the SLI layer, and eventually 2989 * marks the HBA as in offline state for the upper layer protocol. 2990 **/ 2991void 2992lpfc_offline(struct lpfc_hba *phba) 2993{ 2994 struct Scsi_Host *shost; 2995 struct lpfc_vport **vports; 2996 int i; 2997 2998 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2999 return; 3000 3001 /* stop port and all timers associated with this hba */ 3002 lpfc_stop_port(phba); 3003 vports = lpfc_create_vport_work_array(phba); 3004 if (vports != NULL) 3005 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3006 lpfc_stop_vport_timers(vports[i]); 3007 lpfc_destroy_vport_work_array(phba, vports); 3008 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3009 "0460 Bring Adapter offline\n"); 3010 /* Bring down the SLI Layer and cleanup. The HBA is offline 3011 now. */ 3012 lpfc_sli_hba_down(phba); 3013 spin_lock_irq(&phba->hbalock); 3014 phba->work_ha = 0; 3015 spin_unlock_irq(&phba->hbalock); 3016 vports = lpfc_create_vport_work_array(phba); 3017 if (vports != NULL) 3018 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3019 shost = lpfc_shost_from_vport(vports[i]); 3020 spin_lock_irq(shost->host_lock); 3021 vports[i]->work_port_events = 0; 3022 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3023 spin_unlock_irq(shost->host_lock); 3024 } 3025 lpfc_destroy_vport_work_array(phba, vports); 3026} 3027 3028/** 3029 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3030 * @phba: pointer to lpfc hba data structure. 3031 * 3032 * This routine is to free all the SCSI buffers and IOCBs from the driver 3033 * list back to kernel. It is called from lpfc_pci_remove_one to free 3034 * the internal resources before the device is removed from the system. 3035 **/ 3036static void 3037lpfc_scsi_free(struct lpfc_hba *phba) 3038{ 3039 struct lpfc_scsi_buf *sb, *sb_next; 3040 struct lpfc_iocbq *io, *io_next; 3041 3042 spin_lock_irq(&phba->hbalock); 3043 3044 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3045 3046 spin_lock(&phba->scsi_buf_list_put_lock); 3047 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3048 list) { 3049 list_del(&sb->list); 3050 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 3051 sb->dma_handle); 3052 kfree(sb); 3053 phba->total_scsi_bufs--; 3054 } 3055 spin_unlock(&phba->scsi_buf_list_put_lock); 3056 3057 spin_lock(&phba->scsi_buf_list_get_lock); 3058 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3059 list) { 3060 list_del(&sb->list); 3061 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 3062 sb->dma_handle); 3063 kfree(sb); 3064 phba->total_scsi_bufs--; 3065 } 3066 spin_unlock(&phba->scsi_buf_list_get_lock); 3067 3068 /* Release all the lpfc_iocbq entries maintained by this host. */ 3069 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 3070 list_del(&io->list); 3071 kfree(io); 3072 phba->total_iocbq_bufs--; 3073 } 3074 3075 spin_unlock_irq(&phba->hbalock); 3076} 3077 3078/** 3079 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 3080 * @phba: pointer to lpfc hba data structure. 3081 * 3082 * This routine first calculates the sizes of the current els and allocated 3083 * scsi sgl lists, and then goes through all sgls to updates the physical 3084 * XRIs assigned due to port function reset. During port initialization, the 3085 * current els and allocated scsi sgl lists are 0s. 3086 * 3087 * Return codes 3088 * 0 - successful (for now, it always returns 0) 3089 **/ 3090int 3091lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 3092{ 3093 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3094 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 3095 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 3096 LIST_HEAD(els_sgl_list); 3097 LIST_HEAD(scsi_sgl_list); 3098 int rc; 3099 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; 3100 3101 /* 3102 * update on pci function's els xri-sgl list 3103 */ 3104 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3105 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3106 /* els xri-sgl expanded */ 3107 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3108 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3109 "3157 ELS xri-sgl count increased from " 3110 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3111 els_xri_cnt); 3112 /* allocate the additional els sgls */ 3113 for (i = 0; i < xri_cnt; i++) { 3114 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3115 GFP_KERNEL); 3116 if (sglq_entry == NULL) { 3117 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3118 "2562 Failure to allocate an " 3119 "ELS sgl entry:%d\n", i); 3120 rc = -ENOMEM; 3121 goto out_free_mem; 3122 } 3123 sglq_entry->buff_type = GEN_BUFF_TYPE; 3124 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3125 &sglq_entry->phys); 3126 if (sglq_entry->virt == NULL) { 3127 kfree(sglq_entry); 3128 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3129 "2563 Failure to allocate an " 3130 "ELS mbuf:%d\n", i); 3131 rc = -ENOMEM; 3132 goto out_free_mem; 3133 } 3134 sglq_entry->sgl = sglq_entry->virt; 3135 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3136 sglq_entry->state = SGL_FREED; 3137 list_add_tail(&sglq_entry->list, &els_sgl_list); 3138 } 3139 spin_lock_irq(&phba->hbalock); 3140 spin_lock(&pring->ring_lock); 3141 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 3142 spin_unlock(&pring->ring_lock); 3143 spin_unlock_irq(&phba->hbalock); 3144 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3145 /* els xri-sgl shrinked */ 3146 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3147 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3148 "3158 ELS xri-sgl count decreased from " 3149 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3150 els_xri_cnt); 3151 spin_lock_irq(&phba->hbalock); 3152 spin_lock(&pring->ring_lock); 3153 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 3154 spin_unlock(&pring->ring_lock); 3155 spin_unlock_irq(&phba->hbalock); 3156 /* release extra els sgls from list */ 3157 for (i = 0; i < xri_cnt; i++) { 3158 list_remove_head(&els_sgl_list, 3159 sglq_entry, struct lpfc_sglq, list); 3160 if (sglq_entry) { 3161 lpfc_mbuf_free(phba, sglq_entry->virt, 3162 sglq_entry->phys); 3163 kfree(sglq_entry); 3164 } 3165 } 3166 spin_lock_irq(&phba->hbalock); 3167 spin_lock(&pring->ring_lock); 3168 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 3169 spin_unlock(&pring->ring_lock); 3170 spin_unlock_irq(&phba->hbalock); 3171 } else 3172 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3173 "3163 ELS xri-sgl count unchanged: %d\n", 3174 els_xri_cnt); 3175 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3176 3177 /* update xris to els sgls on the list */ 3178 sglq_entry = NULL; 3179 sglq_entry_next = NULL; 3180 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3181 &phba->sli4_hba.lpfc_sgl_list, list) { 3182 lxri = lpfc_sli4_next_xritag(phba); 3183 if (lxri == NO_XRI) { 3184 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3185 "2400 Failed to allocate xri for " 3186 "ELS sgl\n"); 3187 rc = -ENOMEM; 3188 goto out_free_mem; 3189 } 3190 sglq_entry->sli4_lxritag = lxri; 3191 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3192 } 3193 3194 /* 3195 * update on pci function's allocated scsi xri-sgl list 3196 */ 3197 phba->total_scsi_bufs = 0; 3198 3199 /* maximum number of xris available for scsi buffers */ 3200 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3201 els_xri_cnt; 3202 3203 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3204 "2401 Current allocated SCSI xri-sgl count:%d, " 3205 "maximum SCSI xri count:%d\n", 3206 phba->sli4_hba.scsi_xri_cnt, 3207 phba->sli4_hba.scsi_xri_max); 3208 3209 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3210 spin_lock(&phba->scsi_buf_list_put_lock); 3211 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3212 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3213 spin_unlock(&phba->scsi_buf_list_put_lock); 3214 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3215 3216 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3217 /* max scsi xri shrinked below the allocated scsi buffers */ 3218 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3219 phba->sli4_hba.scsi_xri_max; 3220 /* release the extra allocated scsi buffers */ 3221 for (i = 0; i < scsi_xri_cnt; i++) { 3222 list_remove_head(&scsi_sgl_list, psb, 3223 struct lpfc_scsi_buf, list); 3224 if (psb) { 3225 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, 3226 psb->data, psb->dma_handle); 3227 kfree(psb); 3228 } 3229 } 3230 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3231 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3232 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3233 } 3234 3235 /* update xris associated to remaining allocated scsi buffers */ 3236 psb = NULL; 3237 psb_next = NULL; 3238 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3239 lxri = lpfc_sli4_next_xritag(phba); 3240 if (lxri == NO_XRI) { 3241 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3242 "2560 Failed to allocate xri for " 3243 "scsi buffer\n"); 3244 rc = -ENOMEM; 3245 goto out_free_mem; 3246 } 3247 psb->cur_iocbq.sli4_lxritag = lxri; 3248 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3249 } 3250 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3251 spin_lock(&phba->scsi_buf_list_put_lock); 3252 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3253 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3254 spin_unlock(&phba->scsi_buf_list_put_lock); 3255 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3256 3257 return 0; 3258 3259out_free_mem: 3260 lpfc_free_els_sgl_list(phba); 3261 lpfc_scsi_free(phba); 3262 return rc; 3263} 3264 3265/** 3266 * lpfc_create_port - Create an FC port 3267 * @phba: pointer to lpfc hba data structure. 3268 * @instance: a unique integer ID to this FC port. 3269 * @dev: pointer to the device data structure. 3270 * 3271 * This routine creates a FC port for the upper layer protocol. The FC port 3272 * can be created on top of either a physical port or a virtual port provided 3273 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3274 * and associates the FC port created before adding the shost into the SCSI 3275 * layer. 3276 * 3277 * Return codes 3278 * @vport - pointer to the virtual N_Port data structure. 3279 * NULL - port create failed. 3280 **/ 3281struct lpfc_vport * 3282lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3283{ 3284 struct lpfc_vport *vport; 3285 struct Scsi_Host *shost; 3286 int error = 0; 3287 3288 if (dev != &phba->pcidev->dev) { 3289 shost = scsi_host_alloc(&lpfc_vport_template, 3290 sizeof(struct lpfc_vport)); 3291 } else { 3292 if (phba->sli_rev == LPFC_SLI_REV4) 3293 shost = scsi_host_alloc(&lpfc_template, 3294 sizeof(struct lpfc_vport)); 3295 else 3296 shost = scsi_host_alloc(&lpfc_template_s3, 3297 sizeof(struct lpfc_vport)); 3298 } 3299 if (!shost) 3300 goto out; 3301 3302 vport = (struct lpfc_vport *) shost->hostdata; 3303 vport->phba = phba; 3304 vport->load_flag |= FC_LOADING; 3305 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3306 vport->fc_rscn_flush = 0; 3307 3308 lpfc_get_vport_cfgparam(vport); 3309 shost->unique_id = instance; 3310 shost->max_id = LPFC_MAX_TARGET; 3311 shost->max_lun = vport->cfg_max_luns; 3312 shost->this_id = -1; 3313 shost->max_cmd_len = 16; 3314 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3315 if (phba->sli_rev == LPFC_SLI_REV4) { 3316 shost->dma_boundary = 3317 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3318 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3319 } 3320 3321 /* 3322 * Set initial can_queue value since 0 is no longer supported and 3323 * scsi_add_host will fail. This will be adjusted later based on the 3324 * max xri value determined in hba setup. 3325 */ 3326 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3327 if (dev != &phba->pcidev->dev) { 3328 shost->transportt = lpfc_vport_transport_template; 3329 vport->port_type = LPFC_NPIV_PORT; 3330 } else { 3331 shost->transportt = lpfc_transport_template; 3332 vport->port_type = LPFC_PHYSICAL_PORT; 3333 } 3334 3335 /* Initialize all internally managed lists. */ 3336 INIT_LIST_HEAD(&vport->fc_nodes); 3337 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3338 spin_lock_init(&vport->work_port_lock); 3339 3340 init_timer(&vport->fc_disctmo); 3341 vport->fc_disctmo.function = lpfc_disc_timeout; 3342 vport->fc_disctmo.data = (unsigned long)vport; 3343 3344 init_timer(&vport->fc_fdmitmo); 3345 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3346 vport->fc_fdmitmo.data = (unsigned long)vport; 3347 3348 init_timer(&vport->els_tmofunc); 3349 vport->els_tmofunc.function = lpfc_els_timeout; 3350 vport->els_tmofunc.data = (unsigned long)vport; 3351 3352 init_timer(&vport->delayed_disc_tmo); 3353 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3354 vport->delayed_disc_tmo.data = (unsigned long)vport; 3355 3356 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3357 if (error) 3358 goto out_put_shost; 3359 3360 spin_lock_irq(&phba->hbalock); 3361 list_add_tail(&vport->listentry, &phba->port_list); 3362 spin_unlock_irq(&phba->hbalock); 3363 return vport; 3364 3365out_put_shost: 3366 scsi_host_put(shost); 3367out: 3368 return NULL; 3369} 3370 3371/** 3372 * destroy_port - destroy an FC port 3373 * @vport: pointer to an lpfc virtual N_Port data structure. 3374 * 3375 * This routine destroys a FC port from the upper layer protocol. All the 3376 * resources associated with the port are released. 3377 **/ 3378void 3379destroy_port(struct lpfc_vport *vport) 3380{ 3381 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3382 struct lpfc_hba *phba = vport->phba; 3383 3384 lpfc_debugfs_terminate(vport); 3385 fc_remove_host(shost); 3386 scsi_remove_host(shost); 3387 3388 spin_lock_irq(&phba->hbalock); 3389 list_del_init(&vport->listentry); 3390 spin_unlock_irq(&phba->hbalock); 3391 3392 lpfc_cleanup(vport); 3393 return; 3394} 3395 3396/** 3397 * lpfc_get_instance - Get a unique integer ID 3398 * 3399 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3400 * uses the kernel idr facility to perform the task. 3401 * 3402 * Return codes: 3403 * instance - a unique integer ID allocated as the new instance. 3404 * -1 - lpfc get instance failed. 3405 **/ 3406int 3407lpfc_get_instance(void) 3408{ 3409 int ret; 3410 3411 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3412 return ret < 0 ? -1 : ret; 3413} 3414 3415/** 3416 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3417 * @shost: pointer to SCSI host data structure. 3418 * @time: elapsed time of the scan in jiffies. 3419 * 3420 * This routine is called by the SCSI layer with a SCSI host to determine 3421 * whether the scan host is finished. 3422 * 3423 * Note: there is no scan_start function as adapter initialization will have 3424 * asynchronously kicked off the link initialization. 3425 * 3426 * Return codes 3427 * 0 - SCSI host scan is not over yet. 3428 * 1 - SCSI host scan is over. 3429 **/ 3430int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3431{ 3432 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3433 struct lpfc_hba *phba = vport->phba; 3434 int stat = 0; 3435 3436 spin_lock_irq(shost->host_lock); 3437 3438 if (vport->load_flag & FC_UNLOADING) { 3439 stat = 1; 3440 goto finished; 3441 } 3442 if (time >= msecs_to_jiffies(30 * 1000)) { 3443 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3444 "0461 Scanning longer than 30 " 3445 "seconds. Continuing initialization\n"); 3446 stat = 1; 3447 goto finished; 3448 } 3449 if (time >= msecs_to_jiffies(15 * 1000) && 3450 phba->link_state <= LPFC_LINK_DOWN) { 3451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3452 "0465 Link down longer than 15 " 3453 "seconds. Continuing initialization\n"); 3454 stat = 1; 3455 goto finished; 3456 } 3457 3458 if (vport->port_state != LPFC_VPORT_READY) 3459 goto finished; 3460 if (vport->num_disc_nodes || vport->fc_prli_sent) 3461 goto finished; 3462 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3463 goto finished; 3464 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3465 goto finished; 3466 3467 stat = 1; 3468 3469finished: 3470 spin_unlock_irq(shost->host_lock); 3471 return stat; 3472} 3473 3474/** 3475 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3476 * @shost: pointer to SCSI host data structure. 3477 * 3478 * This routine initializes a given SCSI host attributes on a FC port. The 3479 * SCSI host can be either on top of a physical port or a virtual port. 3480 **/ 3481void lpfc_host_attrib_init(struct Scsi_Host *shost) 3482{ 3483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3484 struct lpfc_hba *phba = vport->phba; 3485 /* 3486 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3487 */ 3488 3489 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3490 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3491 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3492 3493 memset(fc_host_supported_fc4s(shost), 0, 3494 sizeof(fc_host_supported_fc4s(shost))); 3495 fc_host_supported_fc4s(shost)[2] = 1; 3496 fc_host_supported_fc4s(shost)[7] = 1; 3497 3498 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3499 sizeof fc_host_symbolic_name(shost)); 3500 3501 fc_host_supported_speeds(shost) = 0; 3502 if (phba->lmt & LMT_32Gb) 3503 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 3504 if (phba->lmt & LMT_16Gb) 3505 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3506 if (phba->lmt & LMT_10Gb) 3507 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3508 if (phba->lmt & LMT_8Gb) 3509 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3510 if (phba->lmt & LMT_4Gb) 3511 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3512 if (phba->lmt & LMT_2Gb) 3513 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3514 if (phba->lmt & LMT_1Gb) 3515 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3516 3517 fc_host_maxframe_size(shost) = 3518 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3519 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3520 3521 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3522 3523 /* This value is also unchanging */ 3524 memset(fc_host_active_fc4s(shost), 0, 3525 sizeof(fc_host_active_fc4s(shost))); 3526 fc_host_active_fc4s(shost)[2] = 1; 3527 fc_host_active_fc4s(shost)[7] = 1; 3528 3529 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3530 spin_lock_irq(shost->host_lock); 3531 vport->load_flag &= ~FC_LOADING; 3532 spin_unlock_irq(shost->host_lock); 3533} 3534 3535/** 3536 * lpfc_stop_port_s3 - Stop SLI3 device port 3537 * @phba: pointer to lpfc hba data structure. 3538 * 3539 * This routine is invoked to stop an SLI3 device port, it stops the device 3540 * from generating interrupts and stops the device driver's timers for the 3541 * device. 3542 **/ 3543static void 3544lpfc_stop_port_s3(struct lpfc_hba *phba) 3545{ 3546 /* Clear all interrupt enable conditions */ 3547 writel(0, phba->HCregaddr); 3548 readl(phba->HCregaddr); /* flush */ 3549 /* Clear all pending interrupts */ 3550 writel(0xffffffff, phba->HAregaddr); 3551 readl(phba->HAregaddr); /* flush */ 3552 3553 /* Reset some HBA SLI setup states */ 3554 lpfc_stop_hba_timers(phba); 3555 phba->pport->work_port_events = 0; 3556} 3557 3558/** 3559 * lpfc_stop_port_s4 - Stop SLI4 device port 3560 * @phba: pointer to lpfc hba data structure. 3561 * 3562 * This routine is invoked to stop an SLI4 device port, it stops the device 3563 * from generating interrupts and stops the device driver's timers for the 3564 * device. 3565 **/ 3566static void 3567lpfc_stop_port_s4(struct lpfc_hba *phba) 3568{ 3569 /* Reset some HBA SLI4 setup states */ 3570 lpfc_stop_hba_timers(phba); 3571 phba->pport->work_port_events = 0; 3572 phba->sli4_hba.intr_enable = 0; 3573} 3574 3575/** 3576 * lpfc_stop_port - Wrapper function for stopping hba port 3577 * @phba: Pointer to HBA context object. 3578 * 3579 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3580 * the API jump table function pointer from the lpfc_hba struct. 3581 **/ 3582void 3583lpfc_stop_port(struct lpfc_hba *phba) 3584{ 3585 phba->lpfc_stop_port(phba); 3586} 3587 3588/** 3589 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3590 * @phba: Pointer to hba for which this call is being executed. 3591 * 3592 * This routine starts the timer waiting for the FCF rediscovery to complete. 3593 **/ 3594void 3595lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3596{ 3597 unsigned long fcf_redisc_wait_tmo = 3598 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3599 /* Start fcf rediscovery wait period timer */ 3600 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3601 spin_lock_irq(&phba->hbalock); 3602 /* Allow action to new fcf asynchronous event */ 3603 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3604 /* Mark the FCF rediscovery pending state */ 3605 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3606 spin_unlock_irq(&phba->hbalock); 3607} 3608 3609/** 3610 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3611 * @ptr: Map to lpfc_hba data structure pointer. 3612 * 3613 * This routine is invoked when waiting for FCF table rediscover has been 3614 * timed out. If new FCF record(s) has (have) been discovered during the 3615 * wait period, a new FCF event shall be added to the FCOE async event 3616 * list, and then worker thread shall be waked up for processing from the 3617 * worker thread context. 3618 **/ 3619static void 3620lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3621{ 3622 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3623 3624 /* Don't send FCF rediscovery event if timer cancelled */ 3625 spin_lock_irq(&phba->hbalock); 3626 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3627 spin_unlock_irq(&phba->hbalock); 3628 return; 3629 } 3630 /* Clear FCF rediscovery timer pending flag */ 3631 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3632 /* FCF rediscovery event to worker thread */ 3633 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3634 spin_unlock_irq(&phba->hbalock); 3635 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3636 "2776 FCF rediscover quiescent timer expired\n"); 3637 /* wake up worker thread */ 3638 lpfc_worker_wake_up(phba); 3639} 3640 3641/** 3642 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3643 * @phba: pointer to lpfc hba data structure. 3644 * @acqe_link: pointer to the async link completion queue entry. 3645 * 3646 * This routine is to parse the SLI4 link-attention link fault code and 3647 * translate it into the base driver's read link attention mailbox command 3648 * status. 3649 * 3650 * Return: Link-attention status in terms of base driver's coding. 3651 **/ 3652static uint16_t 3653lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3654 struct lpfc_acqe_link *acqe_link) 3655{ 3656 uint16_t latt_fault; 3657 3658 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3659 case LPFC_ASYNC_LINK_FAULT_NONE: 3660 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3661 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3662 latt_fault = 0; 3663 break; 3664 default: 3665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3666 "0398 Invalid link fault code: x%x\n", 3667 bf_get(lpfc_acqe_link_fault, acqe_link)); 3668 latt_fault = MBXERR_ERROR; 3669 break; 3670 } 3671 return latt_fault; 3672} 3673 3674/** 3675 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3676 * @phba: pointer to lpfc hba data structure. 3677 * @acqe_link: pointer to the async link completion queue entry. 3678 * 3679 * This routine is to parse the SLI4 link attention type and translate it 3680 * into the base driver's link attention type coding. 3681 * 3682 * Return: Link attention type in terms of base driver's coding. 3683 **/ 3684static uint8_t 3685lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3686 struct lpfc_acqe_link *acqe_link) 3687{ 3688 uint8_t att_type; 3689 3690 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3691 case LPFC_ASYNC_LINK_STATUS_DOWN: 3692 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3693 att_type = LPFC_ATT_LINK_DOWN; 3694 break; 3695 case LPFC_ASYNC_LINK_STATUS_UP: 3696 /* Ignore physical link up events - wait for logical link up */ 3697 att_type = LPFC_ATT_RESERVED; 3698 break; 3699 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3700 att_type = LPFC_ATT_LINK_UP; 3701 break; 3702 default: 3703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3704 "0399 Invalid link attention type: x%x\n", 3705 bf_get(lpfc_acqe_link_status, acqe_link)); 3706 att_type = LPFC_ATT_RESERVED; 3707 break; 3708 } 3709 return att_type; 3710} 3711 3712/** 3713 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3714 * @phba: pointer to lpfc hba data structure. 3715 * @acqe_link: pointer to the async link completion queue entry. 3716 * 3717 * This routine is to parse the SLI4 link-attention link speed and translate 3718 * it into the base driver's link-attention link speed coding. 3719 * 3720 * Return: Link-attention link speed in terms of base driver's coding. 3721 **/ 3722static uint8_t 3723lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3724 struct lpfc_acqe_link *acqe_link) 3725{ 3726 uint8_t link_speed; 3727 3728 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3729 case LPFC_ASYNC_LINK_SPEED_ZERO: 3730 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3731 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3732 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3733 break; 3734 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3735 link_speed = LPFC_LINK_SPEED_1GHZ; 3736 break; 3737 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3738 link_speed = LPFC_LINK_SPEED_10GHZ; 3739 break; 3740 case LPFC_ASYNC_LINK_SPEED_20GBPS: 3741 case LPFC_ASYNC_LINK_SPEED_25GBPS: 3742 case LPFC_ASYNC_LINK_SPEED_40GBPS: 3743 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3744 break; 3745 default: 3746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3747 "0483 Invalid link-attention link speed: x%x\n", 3748 bf_get(lpfc_acqe_link_speed, acqe_link)); 3749 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3750 break; 3751 } 3752 return link_speed; 3753} 3754 3755/** 3756 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3757 * @phba: pointer to lpfc hba data structure. 3758 * 3759 * This routine is to get an SLI3 FC port's link speed in Mbps. 3760 * 3761 * Return: link speed in terms of Mbps. 3762 **/ 3763uint32_t 3764lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3765{ 3766 uint32_t link_speed; 3767 3768 if (!lpfc_is_link_up(phba)) 3769 return 0; 3770 3771 switch (phba->fc_linkspeed) { 3772 case LPFC_LINK_SPEED_1GHZ: 3773 link_speed = 1000; 3774 break; 3775 case LPFC_LINK_SPEED_2GHZ: 3776 link_speed = 2000; 3777 break; 3778 case LPFC_LINK_SPEED_4GHZ: 3779 link_speed = 4000; 3780 break; 3781 case LPFC_LINK_SPEED_8GHZ: 3782 link_speed = 8000; 3783 break; 3784 case LPFC_LINK_SPEED_10GHZ: 3785 link_speed = 10000; 3786 break; 3787 case LPFC_LINK_SPEED_16GHZ: 3788 link_speed = 16000; 3789 break; 3790 default: 3791 link_speed = 0; 3792 } 3793 return link_speed; 3794} 3795 3796/** 3797 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3798 * @phba: pointer to lpfc hba data structure. 3799 * @evt_code: asynchronous event code. 3800 * @speed_code: asynchronous event link speed code. 3801 * 3802 * This routine is to parse the giving SLI4 async event link speed code into 3803 * value of Mbps for the link speed. 3804 * 3805 * Return: link speed in terms of Mbps. 3806 **/ 3807static uint32_t 3808lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3809 uint8_t speed_code) 3810{ 3811 uint32_t port_speed; 3812 3813 switch (evt_code) { 3814 case LPFC_TRAILER_CODE_LINK: 3815 switch (speed_code) { 3816 case LPFC_ASYNC_LINK_SPEED_ZERO: 3817 port_speed = 0; 3818 break; 3819 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3820 port_speed = 10; 3821 break; 3822 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3823 port_speed = 100; 3824 break; 3825 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3826 port_speed = 1000; 3827 break; 3828 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3829 port_speed = 10000; 3830 break; 3831 case LPFC_ASYNC_LINK_SPEED_20GBPS: 3832 port_speed = 20000; 3833 break; 3834 case LPFC_ASYNC_LINK_SPEED_25GBPS: 3835 port_speed = 25000; 3836 break; 3837 case LPFC_ASYNC_LINK_SPEED_40GBPS: 3838 port_speed = 40000; 3839 break; 3840 default: 3841 port_speed = 0; 3842 } 3843 break; 3844 case LPFC_TRAILER_CODE_FC: 3845 switch (speed_code) { 3846 case LPFC_FC_LA_SPEED_UNKNOWN: 3847 port_speed = 0; 3848 break; 3849 case LPFC_FC_LA_SPEED_1G: 3850 port_speed = 1000; 3851 break; 3852 case LPFC_FC_LA_SPEED_2G: 3853 port_speed = 2000; 3854 break; 3855 case LPFC_FC_LA_SPEED_4G: 3856 port_speed = 4000; 3857 break; 3858 case LPFC_FC_LA_SPEED_8G: 3859 port_speed = 8000; 3860 break; 3861 case LPFC_FC_LA_SPEED_10G: 3862 port_speed = 10000; 3863 break; 3864 case LPFC_FC_LA_SPEED_16G: 3865 port_speed = 16000; 3866 break; 3867 case LPFC_FC_LA_SPEED_32G: 3868 port_speed = 32000; 3869 break; 3870 default: 3871 port_speed = 0; 3872 } 3873 break; 3874 default: 3875 port_speed = 0; 3876 } 3877 return port_speed; 3878} 3879 3880/** 3881 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3882 * @phba: pointer to lpfc hba data structure. 3883 * @acqe_link: pointer to the async link completion queue entry. 3884 * 3885 * This routine is to handle the SLI4 asynchronous FCoE link event. 3886 **/ 3887static void 3888lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3889 struct lpfc_acqe_link *acqe_link) 3890{ 3891 struct lpfc_dmabuf *mp; 3892 LPFC_MBOXQ_t *pmb; 3893 MAILBOX_t *mb; 3894 struct lpfc_mbx_read_top *la; 3895 uint8_t att_type; 3896 int rc; 3897 3898 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3899 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3900 return; 3901 phba->fcoe_eventtag = acqe_link->event_tag; 3902 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3903 if (!pmb) { 3904 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3905 "0395 The mboxq allocation failed\n"); 3906 return; 3907 } 3908 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3909 if (!mp) { 3910 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3911 "0396 The lpfc_dmabuf allocation failed\n"); 3912 goto out_free_pmb; 3913 } 3914 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3915 if (!mp->virt) { 3916 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3917 "0397 The mbuf allocation failed\n"); 3918 goto out_free_dmabuf; 3919 } 3920 3921 /* Cleanup any outstanding ELS commands */ 3922 lpfc_els_flush_all_cmd(phba); 3923 3924 /* Block ELS IOCBs until we have done process link event */ 3925 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3926 3927 /* Update link event statistics */ 3928 phba->sli.slistat.link_event++; 3929 3930 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3931 lpfc_read_topology(phba, pmb, mp); 3932 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3933 pmb->vport = phba->pport; 3934 3935 /* Keep the link status for extra SLI4 state machine reference */ 3936 phba->sli4_hba.link_state.speed = 3937 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3938 bf_get(lpfc_acqe_link_speed, acqe_link)); 3939 phba->sli4_hba.link_state.duplex = 3940 bf_get(lpfc_acqe_link_duplex, acqe_link); 3941 phba->sli4_hba.link_state.status = 3942 bf_get(lpfc_acqe_link_status, acqe_link); 3943 phba->sli4_hba.link_state.type = 3944 bf_get(lpfc_acqe_link_type, acqe_link); 3945 phba->sli4_hba.link_state.number = 3946 bf_get(lpfc_acqe_link_number, acqe_link); 3947 phba->sli4_hba.link_state.fault = 3948 bf_get(lpfc_acqe_link_fault, acqe_link); 3949 phba->sli4_hba.link_state.logical_speed = 3950 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3951 3952 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3953 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3954 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3955 "Logical speed:%dMbps Fault:%d\n", 3956 phba->sli4_hba.link_state.speed, 3957 phba->sli4_hba.link_state.topology, 3958 phba->sli4_hba.link_state.status, 3959 phba->sli4_hba.link_state.type, 3960 phba->sli4_hba.link_state.number, 3961 phba->sli4_hba.link_state.logical_speed, 3962 phba->sli4_hba.link_state.fault); 3963 /* 3964 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3965 * topology info. Note: Optional for non FC-AL ports. 3966 */ 3967 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3968 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3969 if (rc == MBX_NOT_FINISHED) 3970 goto out_free_dmabuf; 3971 return; 3972 } 3973 /* 3974 * For FCoE Mode: fill in all the topology information we need and call 3975 * the READ_TOPOLOGY completion routine to continue without actually 3976 * sending the READ_TOPOLOGY mailbox command to the port. 3977 */ 3978 /* Parse and translate status field */ 3979 mb = &pmb->u.mb; 3980 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3981 3982 /* Parse and translate link attention fields */ 3983 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3984 la->eventTag = acqe_link->event_tag; 3985 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3986 bf_set(lpfc_mbx_read_top_link_spd, la, 3987 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3988 3989 /* Fake the the following irrelvant fields */ 3990 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3991 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3992 bf_set(lpfc_mbx_read_top_il, la, 0); 3993 bf_set(lpfc_mbx_read_top_pb, la, 0); 3994 bf_set(lpfc_mbx_read_top_fa, la, 0); 3995 bf_set(lpfc_mbx_read_top_mm, la, 0); 3996 3997 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3998 lpfc_mbx_cmpl_read_topology(phba, pmb); 3999 4000 return; 4001 4002out_free_dmabuf: 4003 kfree(mp); 4004out_free_pmb: 4005 mempool_free(pmb, phba->mbox_mem_pool); 4006} 4007 4008/** 4009 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4010 * @phba: pointer to lpfc hba data structure. 4011 * @acqe_fc: pointer to the async fc completion queue entry. 4012 * 4013 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4014 * that the event was received and then issue a read_topology mailbox command so 4015 * that the rest of the driver will treat it the same as SLI3. 4016 **/ 4017static void 4018lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4019{ 4020 struct lpfc_dmabuf *mp; 4021 LPFC_MBOXQ_t *pmb; 4022 int rc; 4023 4024 if (bf_get(lpfc_trailer_type, acqe_fc) != 4025 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4026 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4027 "2895 Non FC link Event detected.(%d)\n", 4028 bf_get(lpfc_trailer_type, acqe_fc)); 4029 return; 4030 } 4031 /* Keep the link status for extra SLI4 state machine reference */ 4032 phba->sli4_hba.link_state.speed = 4033 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4034 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4035 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4036 phba->sli4_hba.link_state.topology = 4037 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4038 phba->sli4_hba.link_state.status = 4039 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4040 phba->sli4_hba.link_state.type = 4041 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4042 phba->sli4_hba.link_state.number = 4043 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4044 phba->sli4_hba.link_state.fault = 4045 bf_get(lpfc_acqe_link_fault, acqe_fc); 4046 phba->sli4_hba.link_state.logical_speed = 4047 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4048 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4049 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4050 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4051 "%dMbps Fault:%d\n", 4052 phba->sli4_hba.link_state.speed, 4053 phba->sli4_hba.link_state.topology, 4054 phba->sli4_hba.link_state.status, 4055 phba->sli4_hba.link_state.type, 4056 phba->sli4_hba.link_state.number, 4057 phba->sli4_hba.link_state.logical_speed, 4058 phba->sli4_hba.link_state.fault); 4059 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4060 if (!pmb) { 4061 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4062 "2897 The mboxq allocation failed\n"); 4063 return; 4064 } 4065 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4066 if (!mp) { 4067 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4068 "2898 The lpfc_dmabuf allocation failed\n"); 4069 goto out_free_pmb; 4070 } 4071 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4072 if (!mp->virt) { 4073 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4074 "2899 The mbuf allocation failed\n"); 4075 goto out_free_dmabuf; 4076 } 4077 4078 /* Cleanup any outstanding ELS commands */ 4079 lpfc_els_flush_all_cmd(phba); 4080 4081 /* Block ELS IOCBs until we have done process link event */ 4082 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 4083 4084 /* Update link event statistics */ 4085 phba->sli.slistat.link_event++; 4086 4087 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4088 lpfc_read_topology(phba, pmb, mp); 4089 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4090 pmb->vport = phba->pport; 4091 4092 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4093 if (rc == MBX_NOT_FINISHED) 4094 goto out_free_dmabuf; 4095 return; 4096 4097out_free_dmabuf: 4098 kfree(mp); 4099out_free_pmb: 4100 mempool_free(pmb, phba->mbox_mem_pool); 4101} 4102 4103/** 4104 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4105 * @phba: pointer to lpfc hba data structure. 4106 * @acqe_fc: pointer to the async SLI completion queue entry. 4107 * 4108 * This routine is to handle the SLI4 asynchronous SLI events. 4109 **/ 4110static void 4111lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4112{ 4113 char port_name; 4114 char message[128]; 4115 uint8_t status; 4116 uint8_t evt_type; 4117 struct temp_event temp_event_data; 4118 struct lpfc_acqe_misconfigured_event *misconfigured; 4119 struct Scsi_Host *shost; 4120 4121 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4122 4123 /* Special case Lancer */ 4124 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 4125 LPFC_SLI_INTF_IF_TYPE_2) { 4126 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4127 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4128 "x%08x SLI Event Type:%d\n", 4129 acqe_sli->event_data1, acqe_sli->event_data2, 4130 evt_type); 4131 return; 4132 } 4133 4134 port_name = phba->Port[0]; 4135 if (port_name == 0x00) 4136 port_name = '?'; /* get port name is empty */ 4137 4138 switch (evt_type) { 4139 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4140 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4141 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4142 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4143 4144 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4145 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4146 acqe_sli->event_data1, port_name); 4147 4148 shost = lpfc_shost_from_vport(phba->pport); 4149 fc_host_post_vendor_event(shost, fc_get_event_number(), 4150 sizeof(temp_event_data), 4151 (char *)&temp_event_data, 4152 SCSI_NL_VID_TYPE_PCI 4153 | PCI_VENDOR_ID_EMULEX); 4154 break; 4155 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4156 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4157 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4158 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4159 4160 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4161 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4162 acqe_sli->event_data1, port_name); 4163 4164 shost = lpfc_shost_from_vport(phba->pport); 4165 fc_host_post_vendor_event(shost, fc_get_event_number(), 4166 sizeof(temp_event_data), 4167 (char *)&temp_event_data, 4168 SCSI_NL_VID_TYPE_PCI 4169 | PCI_VENDOR_ID_EMULEX); 4170 break; 4171 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4172 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4173 &acqe_sli->event_data1; 4174 4175 /* fetch the status for this port */ 4176 switch (phba->sli4_hba.lnk_info.lnk_no) { 4177 case LPFC_LINK_NUMBER_0: 4178 status = bf_get(lpfc_sli_misconfigured_port0, 4179 &misconfigured->theEvent); 4180 break; 4181 case LPFC_LINK_NUMBER_1: 4182 status = bf_get(lpfc_sli_misconfigured_port1, 4183 &misconfigured->theEvent); 4184 break; 4185 case LPFC_LINK_NUMBER_2: 4186 status = bf_get(lpfc_sli_misconfigured_port2, 4187 &misconfigured->theEvent); 4188 break; 4189 case LPFC_LINK_NUMBER_3: 4190 status = bf_get(lpfc_sli_misconfigured_port3, 4191 &misconfigured->theEvent); 4192 break; 4193 default: 4194 status = ~LPFC_SLI_EVENT_STATUS_VALID; 4195 break; 4196 } 4197 4198 switch (status) { 4199 case LPFC_SLI_EVENT_STATUS_VALID: 4200 return; /* no message if the sfp is okay */ 4201 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4202 sprintf(message, "Optics faulted/incorrectly " 4203 "installed/not installed - Reseat optics, " 4204 "if issue not resolved, replace."); 4205 break; 4206 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4207 sprintf(message, 4208 "Optics of two types installed - Remove one " 4209 "optic or install matching pair of optics."); 4210 break; 4211 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4212 sprintf(message, "Incompatible optics - Replace with " 4213 "compatible optics for card to function."); 4214 break; 4215 default: 4216 /* firmware is reporting a status we don't know about */ 4217 sprintf(message, "Unknown event status x%02x", status); 4218 break; 4219 } 4220 4221 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4222 "3176 Misconfigured Physical Port - " 4223 "Port Name %c %s\n", port_name, message); 4224 break; 4225 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4226 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4227 "3192 Remote DPort Test Initiated - " 4228 "Event Data1:x%08x Event Data2: x%08x\n", 4229 acqe_sli->event_data1, acqe_sli->event_data2); 4230 break; 4231 default: 4232 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4233 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4234 "x%08x SLI Event Type:%d\n", 4235 acqe_sli->event_data1, acqe_sli->event_data2, 4236 evt_type); 4237 break; 4238 } 4239} 4240 4241/** 4242 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4243 * @vport: pointer to vport data structure. 4244 * 4245 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4246 * response to a CVL event. 4247 * 4248 * Return the pointer to the ndlp with the vport if successful, otherwise 4249 * return NULL. 4250 **/ 4251static struct lpfc_nodelist * 4252lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4253{ 4254 struct lpfc_nodelist *ndlp; 4255 struct Scsi_Host *shost; 4256 struct lpfc_hba *phba; 4257 4258 if (!vport) 4259 return NULL; 4260 phba = vport->phba; 4261 if (!phba) 4262 return NULL; 4263 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4264 if (!ndlp) { 4265 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4266 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 4267 if (!ndlp) 4268 return 0; 4269 lpfc_nlp_init(vport, ndlp, Fabric_DID); 4270 /* Set the node type */ 4271 ndlp->nlp_type |= NLP_FABRIC; 4272 /* Put ndlp onto node list */ 4273 lpfc_enqueue_node(vport, ndlp); 4274 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4275 /* re-setup ndlp without removing from node list */ 4276 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4277 if (!ndlp) 4278 return 0; 4279 } 4280 if ((phba->pport->port_state < LPFC_FLOGI) && 4281 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4282 return NULL; 4283 /* If virtual link is not yet instantiated ignore CVL */ 4284 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4285 && (vport->port_state != LPFC_VPORT_FAILED)) 4286 return NULL; 4287 shost = lpfc_shost_from_vport(vport); 4288 if (!shost) 4289 return NULL; 4290 lpfc_linkdown_port(vport); 4291 lpfc_cleanup_pending_mbox(vport); 4292 spin_lock_irq(shost->host_lock); 4293 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4294 spin_unlock_irq(shost->host_lock); 4295 4296 return ndlp; 4297} 4298 4299/** 4300 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4301 * @vport: pointer to lpfc hba data structure. 4302 * 4303 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4304 * response to a FCF dead event. 4305 **/ 4306static void 4307lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4308{ 4309 struct lpfc_vport **vports; 4310 int i; 4311 4312 vports = lpfc_create_vport_work_array(phba); 4313 if (vports) 4314 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4315 lpfc_sli4_perform_vport_cvl(vports[i]); 4316 lpfc_destroy_vport_work_array(phba, vports); 4317} 4318 4319/** 4320 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4321 * @phba: pointer to lpfc hba data structure. 4322 * @acqe_link: pointer to the async fcoe completion queue entry. 4323 * 4324 * This routine is to handle the SLI4 asynchronous fcoe event. 4325 **/ 4326static void 4327lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4328 struct lpfc_acqe_fip *acqe_fip) 4329{ 4330 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4331 int rc; 4332 struct lpfc_vport *vport; 4333 struct lpfc_nodelist *ndlp; 4334 struct Scsi_Host *shost; 4335 int active_vlink_present; 4336 struct lpfc_vport **vports; 4337 int i; 4338 4339 phba->fc_eventTag = acqe_fip->event_tag; 4340 phba->fcoe_eventtag = acqe_fip->event_tag; 4341 switch (event_type) { 4342 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4343 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4344 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4345 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4346 LOG_DISCOVERY, 4347 "2546 New FCF event, evt_tag:x%x, " 4348 "index:x%x\n", 4349 acqe_fip->event_tag, 4350 acqe_fip->index); 4351 else 4352 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4353 LOG_DISCOVERY, 4354 "2788 FCF param modified event, " 4355 "evt_tag:x%x, index:x%x\n", 4356 acqe_fip->event_tag, 4357 acqe_fip->index); 4358 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4359 /* 4360 * During period of FCF discovery, read the FCF 4361 * table record indexed by the event to update 4362 * FCF roundrobin failover eligible FCF bmask. 4363 */ 4364 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4365 LOG_DISCOVERY, 4366 "2779 Read FCF (x%x) for updating " 4367 "roundrobin FCF failover bmask\n", 4368 acqe_fip->index); 4369 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4370 } 4371 4372 /* If the FCF discovery is in progress, do nothing. */ 4373 spin_lock_irq(&phba->hbalock); 4374 if (phba->hba_flag & FCF_TS_INPROG) { 4375 spin_unlock_irq(&phba->hbalock); 4376 break; 4377 } 4378 /* If fast FCF failover rescan event is pending, do nothing */ 4379 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4380 spin_unlock_irq(&phba->hbalock); 4381 break; 4382 } 4383 4384 /* If the FCF has been in discovered state, do nothing. */ 4385 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4386 spin_unlock_irq(&phba->hbalock); 4387 break; 4388 } 4389 spin_unlock_irq(&phba->hbalock); 4390 4391 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4392 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4393 "2770 Start FCF table scan per async FCF " 4394 "event, evt_tag:x%x, index:x%x\n", 4395 acqe_fip->event_tag, acqe_fip->index); 4396 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4397 LPFC_FCOE_FCF_GET_FIRST); 4398 if (rc) 4399 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4400 "2547 Issue FCF scan read FCF mailbox " 4401 "command failed (x%x)\n", rc); 4402 break; 4403 4404 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4405 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4406 "2548 FCF Table full count 0x%x tag 0x%x\n", 4407 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4408 acqe_fip->event_tag); 4409 break; 4410 4411 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4412 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4413 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4414 "2549 FCF (x%x) disconnected from network, " 4415 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4416 /* 4417 * If we are in the middle of FCF failover process, clear 4418 * the corresponding FCF bit in the roundrobin bitmap. 4419 */ 4420 spin_lock_irq(&phba->hbalock); 4421 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4422 spin_unlock_irq(&phba->hbalock); 4423 /* Update FLOGI FCF failover eligible FCF bmask */ 4424 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4425 break; 4426 } 4427 spin_unlock_irq(&phba->hbalock); 4428 4429 /* If the event is not for currently used fcf do nothing */ 4430 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4431 break; 4432 4433 /* 4434 * Otherwise, request the port to rediscover the entire FCF 4435 * table for a fast recovery from case that the current FCF 4436 * is no longer valid as we are not in the middle of FCF 4437 * failover process already. 4438 */ 4439 spin_lock_irq(&phba->hbalock); 4440 /* Mark the fast failover process in progress */ 4441 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4442 spin_unlock_irq(&phba->hbalock); 4443 4444 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4445 "2771 Start FCF fast failover process due to " 4446 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4447 "\n", acqe_fip->event_tag, acqe_fip->index); 4448 rc = lpfc_sli4_redisc_fcf_table(phba); 4449 if (rc) { 4450 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4451 LOG_DISCOVERY, 4452 "2772 Issue FCF rediscover mabilbox " 4453 "command failed, fail through to FCF " 4454 "dead event\n"); 4455 spin_lock_irq(&phba->hbalock); 4456 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4457 spin_unlock_irq(&phba->hbalock); 4458 /* 4459 * Last resort will fail over by treating this 4460 * as a link down to FCF registration. 4461 */ 4462 lpfc_sli4_fcf_dead_failthrough(phba); 4463 } else { 4464 /* Reset FCF roundrobin bmask for new discovery */ 4465 lpfc_sli4_clear_fcf_rr_bmask(phba); 4466 /* 4467 * Handling fast FCF failover to a DEAD FCF event is 4468 * considered equalivant to receiving CVL to all vports. 4469 */ 4470 lpfc_sli4_perform_all_vport_cvl(phba); 4471 } 4472 break; 4473 case LPFC_FIP_EVENT_TYPE_CVL: 4474 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4475 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4476 "2718 Clear Virtual Link Received for VPI 0x%x" 4477 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4478 4479 vport = lpfc_find_vport_by_vpid(phba, 4480 acqe_fip->index); 4481 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4482 if (!ndlp) 4483 break; 4484 active_vlink_present = 0; 4485 4486 vports = lpfc_create_vport_work_array(phba); 4487 if (vports) { 4488 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4489 i++) { 4490 if ((!(vports[i]->fc_flag & 4491 FC_VPORT_CVL_RCVD)) && 4492 (vports[i]->port_state > LPFC_FDISC)) { 4493 active_vlink_present = 1; 4494 break; 4495 } 4496 } 4497 lpfc_destroy_vport_work_array(phba, vports); 4498 } 4499 4500 /* 4501 * Don't re-instantiate if vport is marked for deletion. 4502 * If we are here first then vport_delete is going to wait 4503 * for discovery to complete. 4504 */ 4505 if (!(vport->load_flag & FC_UNLOADING) && 4506 active_vlink_present) { 4507 /* 4508 * If there are other active VLinks present, 4509 * re-instantiate the Vlink using FDISC. 4510 */ 4511 mod_timer(&ndlp->nlp_delayfunc, 4512 jiffies + msecs_to_jiffies(1000)); 4513 shost = lpfc_shost_from_vport(vport); 4514 spin_lock_irq(shost->host_lock); 4515 ndlp->nlp_flag |= NLP_DELAY_TMO; 4516 spin_unlock_irq(shost->host_lock); 4517 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4518 vport->port_state = LPFC_FDISC; 4519 } else { 4520 /* 4521 * Otherwise, we request port to rediscover 4522 * the entire FCF table for a fast recovery 4523 * from possible case that the current FCF 4524 * is no longer valid if we are not already 4525 * in the FCF failover process. 4526 */ 4527 spin_lock_irq(&phba->hbalock); 4528 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4529 spin_unlock_irq(&phba->hbalock); 4530 break; 4531 } 4532 /* Mark the fast failover process in progress */ 4533 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4534 spin_unlock_irq(&phba->hbalock); 4535 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4536 LOG_DISCOVERY, 4537 "2773 Start FCF failover per CVL, " 4538 "evt_tag:x%x\n", acqe_fip->event_tag); 4539 rc = lpfc_sli4_redisc_fcf_table(phba); 4540 if (rc) { 4541 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4542 LOG_DISCOVERY, 4543 "2774 Issue FCF rediscover " 4544 "mabilbox command failed, " 4545 "through to CVL event\n"); 4546 spin_lock_irq(&phba->hbalock); 4547 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4548 spin_unlock_irq(&phba->hbalock); 4549 /* 4550 * Last resort will be re-try on the 4551 * the current registered FCF entry. 4552 */ 4553 lpfc_retry_pport_discovery(phba); 4554 } else 4555 /* 4556 * Reset FCF roundrobin bmask for new 4557 * discovery. 4558 */ 4559 lpfc_sli4_clear_fcf_rr_bmask(phba); 4560 } 4561 break; 4562 default: 4563 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4564 "0288 Unknown FCoE event type 0x%x event tag " 4565 "0x%x\n", event_type, acqe_fip->event_tag); 4566 break; 4567 } 4568} 4569 4570/** 4571 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4572 * @phba: pointer to lpfc hba data structure. 4573 * @acqe_link: pointer to the async dcbx completion queue entry. 4574 * 4575 * This routine is to handle the SLI4 asynchronous dcbx event. 4576 **/ 4577static void 4578lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4579 struct lpfc_acqe_dcbx *acqe_dcbx) 4580{ 4581 phba->fc_eventTag = acqe_dcbx->event_tag; 4582 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4583 "0290 The SLI4 DCBX asynchronous event is not " 4584 "handled yet\n"); 4585} 4586 4587/** 4588 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4589 * @phba: pointer to lpfc hba data structure. 4590 * @acqe_link: pointer to the async grp5 completion queue entry. 4591 * 4592 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4593 * is an asynchronous notified of a logical link speed change. The Port 4594 * reports the logical link speed in units of 10Mbps. 4595 **/ 4596static void 4597lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4598 struct lpfc_acqe_grp5 *acqe_grp5) 4599{ 4600 uint16_t prev_ll_spd; 4601 4602 phba->fc_eventTag = acqe_grp5->event_tag; 4603 phba->fcoe_eventtag = acqe_grp5->event_tag; 4604 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4605 phba->sli4_hba.link_state.logical_speed = 4606 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4607 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4608 "2789 GRP5 Async Event: Updating logical link speed " 4609 "from %dMbps to %dMbps\n", prev_ll_spd, 4610 phba->sli4_hba.link_state.logical_speed); 4611} 4612 4613/** 4614 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4615 * @phba: pointer to lpfc hba data structure. 4616 * 4617 * This routine is invoked by the worker thread to process all the pending 4618 * SLI4 asynchronous events. 4619 **/ 4620void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4621{ 4622 struct lpfc_cq_event *cq_event; 4623 4624 /* First, declare the async event has been handled */ 4625 spin_lock_irq(&phba->hbalock); 4626 phba->hba_flag &= ~ASYNC_EVENT; 4627 spin_unlock_irq(&phba->hbalock); 4628 /* Now, handle all the async events */ 4629 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4630 /* Get the first event from the head of the event queue */ 4631 spin_lock_irq(&phba->hbalock); 4632 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4633 cq_event, struct lpfc_cq_event, list); 4634 spin_unlock_irq(&phba->hbalock); 4635 /* Process the asynchronous event */ 4636 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4637 case LPFC_TRAILER_CODE_LINK: 4638 lpfc_sli4_async_link_evt(phba, 4639 &cq_event->cqe.acqe_link); 4640 break; 4641 case LPFC_TRAILER_CODE_FCOE: 4642 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4643 break; 4644 case LPFC_TRAILER_CODE_DCBX: 4645 lpfc_sli4_async_dcbx_evt(phba, 4646 &cq_event->cqe.acqe_dcbx); 4647 break; 4648 case LPFC_TRAILER_CODE_GRP5: 4649 lpfc_sli4_async_grp5_evt(phba, 4650 &cq_event->cqe.acqe_grp5); 4651 break; 4652 case LPFC_TRAILER_CODE_FC: 4653 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4654 break; 4655 case LPFC_TRAILER_CODE_SLI: 4656 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4657 break; 4658 default: 4659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4660 "1804 Invalid asynchrous event code: " 4661 "x%x\n", bf_get(lpfc_trailer_code, 4662 &cq_event->cqe.mcqe_cmpl)); 4663 break; 4664 } 4665 /* Free the completion event processed to the free pool */ 4666 lpfc_sli4_cq_event_release(phba, cq_event); 4667 } 4668} 4669 4670/** 4671 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4672 * @phba: pointer to lpfc hba data structure. 4673 * 4674 * This routine is invoked by the worker thread to process FCF table 4675 * rediscovery pending completion event. 4676 **/ 4677void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4678{ 4679 int rc; 4680 4681 spin_lock_irq(&phba->hbalock); 4682 /* Clear FCF rediscovery timeout event */ 4683 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4684 /* Clear driver fast failover FCF record flag */ 4685 phba->fcf.failover_rec.flag = 0; 4686 /* Set state for FCF fast failover */ 4687 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4688 spin_unlock_irq(&phba->hbalock); 4689 4690 /* Scan FCF table from the first entry to re-discover SAN */ 4691 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4692 "2777 Start post-quiescent FCF table scan\n"); 4693 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4694 if (rc) 4695 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4696 "2747 Issue FCF scan read FCF mailbox " 4697 "command failed 0x%x\n", rc); 4698} 4699 4700/** 4701 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4702 * @phba: pointer to lpfc hba data structure. 4703 * @dev_grp: The HBA PCI-Device group number. 4704 * 4705 * This routine is invoked to set up the per HBA PCI-Device group function 4706 * API jump table entries. 4707 * 4708 * Return: 0 if success, otherwise -ENODEV 4709 **/ 4710int 4711lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4712{ 4713 int rc; 4714 4715 /* Set up lpfc PCI-device group */ 4716 phba->pci_dev_grp = dev_grp; 4717 4718 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4719 if (dev_grp == LPFC_PCI_DEV_OC) 4720 phba->sli_rev = LPFC_SLI_REV4; 4721 4722 /* Set up device INIT API function jump table */ 4723 rc = lpfc_init_api_table_setup(phba, dev_grp); 4724 if (rc) 4725 return -ENODEV; 4726 /* Set up SCSI API function jump table */ 4727 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4728 if (rc) 4729 return -ENODEV; 4730 /* Set up SLI API function jump table */ 4731 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4732 if (rc) 4733 return -ENODEV; 4734 /* Set up MBOX API function jump table */ 4735 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4736 if (rc) 4737 return -ENODEV; 4738 4739 return 0; 4740} 4741 4742/** 4743 * lpfc_log_intr_mode - Log the active interrupt mode 4744 * @phba: pointer to lpfc hba data structure. 4745 * @intr_mode: active interrupt mode adopted. 4746 * 4747 * This routine it invoked to log the currently used active interrupt mode 4748 * to the device. 4749 **/ 4750static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4751{ 4752 switch (intr_mode) { 4753 case 0: 4754 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4755 "0470 Enable INTx interrupt mode.\n"); 4756 break; 4757 case 1: 4758 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4759 "0481 Enabled MSI interrupt mode.\n"); 4760 break; 4761 case 2: 4762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4763 "0480 Enabled MSI-X interrupt mode.\n"); 4764 break; 4765 default: 4766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4767 "0482 Illegal interrupt mode.\n"); 4768 break; 4769 } 4770 return; 4771} 4772 4773/** 4774 * lpfc_enable_pci_dev - Enable a generic PCI device. 4775 * @phba: pointer to lpfc hba data structure. 4776 * 4777 * This routine is invoked to enable the PCI device that is common to all 4778 * PCI devices. 4779 * 4780 * Return codes 4781 * 0 - successful 4782 * other values - error 4783 **/ 4784static int 4785lpfc_enable_pci_dev(struct lpfc_hba *phba) 4786{ 4787 struct pci_dev *pdev; 4788 int bars = 0; 4789 4790 /* Obtain PCI device reference */ 4791 if (!phba->pcidev) 4792 goto out_error; 4793 else 4794 pdev = phba->pcidev; 4795 /* Select PCI BARs */ 4796 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4797 /* Enable PCI device */ 4798 if (pci_enable_device_mem(pdev)) 4799 goto out_error; 4800 /* Request PCI resource for the device */ 4801 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4802 goto out_disable_device; 4803 /* Set up device as PCI master and save state for EEH */ 4804 pci_set_master(pdev); 4805 pci_try_set_mwi(pdev); 4806 pci_save_state(pdev); 4807 4808 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4809 if (pci_is_pcie(pdev)) 4810 pdev->needs_freset = 1; 4811 4812 return 0; 4813 4814out_disable_device: 4815 pci_disable_device(pdev); 4816out_error: 4817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4818 "1401 Failed to enable pci device, bars:x%x\n", bars); 4819 return -ENODEV; 4820} 4821 4822/** 4823 * lpfc_disable_pci_dev - Disable a generic PCI device. 4824 * @phba: pointer to lpfc hba data structure. 4825 * 4826 * This routine is invoked to disable the PCI device that is common to all 4827 * PCI devices. 4828 **/ 4829static void 4830lpfc_disable_pci_dev(struct lpfc_hba *phba) 4831{ 4832 struct pci_dev *pdev; 4833 int bars; 4834 4835 /* Obtain PCI device reference */ 4836 if (!phba->pcidev) 4837 return; 4838 else 4839 pdev = phba->pcidev; 4840 /* Select PCI BARs */ 4841 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4842 /* Release PCI resource and disable PCI device */ 4843 pci_release_selected_regions(pdev, bars); 4844 pci_disable_device(pdev); 4845 4846 return; 4847} 4848 4849/** 4850 * lpfc_reset_hba - Reset a hba 4851 * @phba: pointer to lpfc hba data structure. 4852 * 4853 * This routine is invoked to reset a hba device. It brings the HBA 4854 * offline, performs a board restart, and then brings the board back 4855 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4856 * on outstanding mailbox commands. 4857 **/ 4858void 4859lpfc_reset_hba(struct lpfc_hba *phba) 4860{ 4861 /* If resets are disabled then set error state and return. */ 4862 if (!phba->cfg_enable_hba_reset) { 4863 phba->link_state = LPFC_HBA_ERROR; 4864 return; 4865 } 4866 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 4867 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4868 else 4869 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 4870 lpfc_offline(phba); 4871 lpfc_sli_brdrestart(phba); 4872 lpfc_online(phba); 4873 lpfc_unblock_mgmt_io(phba); 4874} 4875 4876/** 4877 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4878 * @phba: pointer to lpfc hba data structure. 4879 * 4880 * This function enables the PCI SR-IOV virtual functions to a physical 4881 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4882 * enable the number of virtual functions to the physical function. As 4883 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4884 * API call does not considered as an error condition for most of the device. 4885 **/ 4886uint16_t 4887lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4888{ 4889 struct pci_dev *pdev = phba->pcidev; 4890 uint16_t nr_virtfn; 4891 int pos; 4892 4893 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4894 if (pos == 0) 4895 return 0; 4896 4897 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4898 return nr_virtfn; 4899} 4900 4901/** 4902 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4903 * @phba: pointer to lpfc hba data structure. 4904 * @nr_vfn: number of virtual functions to be enabled. 4905 * 4906 * This function enables the PCI SR-IOV virtual functions to a physical 4907 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4908 * enable the number of virtual functions to the physical function. As 4909 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4910 * API call does not considered as an error condition for most of the device. 4911 **/ 4912int 4913lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4914{ 4915 struct pci_dev *pdev = phba->pcidev; 4916 uint16_t max_nr_vfn; 4917 int rc; 4918 4919 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4920 if (nr_vfn > max_nr_vfn) { 4921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4922 "3057 Requested vfs (%d) greater than " 4923 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4924 return -EINVAL; 4925 } 4926 4927 rc = pci_enable_sriov(pdev, nr_vfn); 4928 if (rc) { 4929 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4930 "2806 Failed to enable sriov on this device " 4931 "with vfn number nr_vf:%d, rc:%d\n", 4932 nr_vfn, rc); 4933 } else 4934 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4935 "2807 Successful enable sriov on this device " 4936 "with vfn number nr_vf:%d\n", nr_vfn); 4937 return rc; 4938} 4939 4940/** 4941 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4942 * @phba: pointer to lpfc hba data structure. 4943 * 4944 * This routine is invoked to set up the driver internal resources specific to 4945 * support the SLI-3 HBA device it attached to. 4946 * 4947 * Return codes 4948 * 0 - successful 4949 * other values - error 4950 **/ 4951static int 4952lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4953{ 4954 struct lpfc_sli *psli; 4955 int rc; 4956 4957 /* 4958 * Initialize timers used by driver 4959 */ 4960 4961 /* Heartbeat timer */ 4962 init_timer(&phba->hb_tmofunc); 4963 phba->hb_tmofunc.function = lpfc_hb_timeout; 4964 phba->hb_tmofunc.data = (unsigned long)phba; 4965 4966 psli = &phba->sli; 4967 /* MBOX heartbeat timer */ 4968 init_timer(&psli->mbox_tmo); 4969 psli->mbox_tmo.function = lpfc_mbox_timeout; 4970 psli->mbox_tmo.data = (unsigned long) phba; 4971 /* FCP polling mode timer */ 4972 init_timer(&phba->fcp_poll_timer); 4973 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4974 phba->fcp_poll_timer.data = (unsigned long) phba; 4975 /* Fabric block timer */ 4976 init_timer(&phba->fabric_block_timer); 4977 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4978 phba->fabric_block_timer.data = (unsigned long) phba; 4979 /* EA polling mode timer */ 4980 init_timer(&phba->eratt_poll); 4981 phba->eratt_poll.function = lpfc_poll_eratt; 4982 phba->eratt_poll.data = (unsigned long) phba; 4983 4984 /* Host attention work mask setup */ 4985 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4986 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4987 4988 /* Get all the module params for configuring this host */ 4989 lpfc_get_cfgparam(phba); 4990 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4991 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4992 /* check for menlo minimum sg count */ 4993 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4994 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4995 } 4996 4997 if (!phba->sli.ring) 4998 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING * 4999 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5000 if (!phba->sli.ring) 5001 return -ENOMEM; 5002 5003 /* 5004 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5005 * used to create the sg_dma_buf_pool must be dynamically calculated. 5006 */ 5007 5008 /* Initialize the host templates the configured values. */ 5009 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5010 lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt; 5011 5012 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5013 if (phba->cfg_enable_bg) { 5014 /* 5015 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5016 * the FCP rsp, and a BDE for each. Sice we have no control 5017 * over how many protection data segments the SCSI Layer 5018 * will hand us (ie: there could be one for every block 5019 * in the IO), we just allocate enough BDEs to accomidate 5020 * our max amount and we need to limit lpfc_sg_seg_cnt to 5021 * minimize the risk of running out. 5022 */ 5023 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5024 sizeof(struct fcp_rsp) + 5025 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5026 5027 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5028 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5029 5030 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5031 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5032 } else { 5033 /* 5034 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5035 * the FCP rsp, a BDE for each, and a BDE for up to 5036 * cfg_sg_seg_cnt data segments. 5037 */ 5038 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5039 sizeof(struct fcp_rsp) + 5040 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5041 5042 /* Total BDEs in BPL for scsi_sg_list */ 5043 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5044 } 5045 5046 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5047 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5048 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5049 phba->cfg_total_seg_cnt); 5050 5051 phba->max_vpi = LPFC_MAX_VPI; 5052 /* This will be set to correct value after config_port mbox */ 5053 phba->max_vports = 0; 5054 5055 /* 5056 * Initialize the SLI Layer to run with lpfc HBAs. 5057 */ 5058 lpfc_sli_setup(phba); 5059 lpfc_sli_queue_setup(phba); 5060 5061 /* Allocate device driver memory */ 5062 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5063 return -ENOMEM; 5064 5065 /* 5066 * Enable sr-iov virtual functions if supported and configured 5067 * through the module parameter. 5068 */ 5069 if (phba->cfg_sriov_nr_virtfn > 0) { 5070 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5071 phba->cfg_sriov_nr_virtfn); 5072 if (rc) { 5073 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5074 "2808 Requested number of SR-IOV " 5075 "virtual functions (%d) is not " 5076 "supported\n", 5077 phba->cfg_sriov_nr_virtfn); 5078 phba->cfg_sriov_nr_virtfn = 0; 5079 } 5080 } 5081 5082 return 0; 5083} 5084 5085/** 5086 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5087 * @phba: pointer to lpfc hba data structure. 5088 * 5089 * This routine is invoked to unset the driver internal resources set up 5090 * specific for supporting the SLI-3 HBA device it attached to. 5091 **/ 5092static void 5093lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5094{ 5095 /* Free device driver memory allocated */ 5096 lpfc_mem_free_all(phba); 5097 5098 return; 5099} 5100 5101/** 5102 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5103 * @phba: pointer to lpfc hba data structure. 5104 * 5105 * This routine is invoked to set up the driver internal resources specific to 5106 * support the SLI-4 HBA device it attached to. 5107 * 5108 * Return codes 5109 * 0 - successful 5110 * other values - error 5111 **/ 5112static int 5113lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5114{ 5115 struct lpfc_vector_map_info *cpup; 5116 struct lpfc_sli *psli; 5117 LPFC_MBOXQ_t *mboxq; 5118 int rc, i, hbq_count, max_buf_size; 5119 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5120 struct lpfc_mqe *mqe; 5121 int longs; 5122 int fof_vectors = 0; 5123 5124 /* Get all the module params for configuring this host */ 5125 lpfc_get_cfgparam(phba); 5126 5127 /* Before proceed, wait for POST done and device ready */ 5128 rc = lpfc_sli4_post_status_check(phba); 5129 if (rc) 5130 return -ENODEV; 5131 5132 /* 5133 * Initialize timers used by driver 5134 */ 5135 5136 /* Heartbeat timer */ 5137 init_timer(&phba->hb_tmofunc); 5138 phba->hb_tmofunc.function = lpfc_hb_timeout; 5139 phba->hb_tmofunc.data = (unsigned long)phba; 5140 init_timer(&phba->rrq_tmr); 5141 phba->rrq_tmr.function = lpfc_rrq_timeout; 5142 phba->rrq_tmr.data = (unsigned long)phba; 5143 5144 psli = &phba->sli; 5145 /* MBOX heartbeat timer */ 5146 init_timer(&psli->mbox_tmo); 5147 psli->mbox_tmo.function = lpfc_mbox_timeout; 5148 psli->mbox_tmo.data = (unsigned long) phba; 5149 /* Fabric block timer */ 5150 init_timer(&phba->fabric_block_timer); 5151 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 5152 phba->fabric_block_timer.data = (unsigned long) phba; 5153 /* EA polling mode timer */ 5154 init_timer(&phba->eratt_poll); 5155 phba->eratt_poll.function = lpfc_poll_eratt; 5156 phba->eratt_poll.data = (unsigned long) phba; 5157 /* FCF rediscover timer */ 5158 init_timer(&phba->fcf.redisc_wait); 5159 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 5160 phba->fcf.redisc_wait.data = (unsigned long)phba; 5161 5162 /* 5163 * Control structure for handling external multi-buffer mailbox 5164 * command pass-through. 5165 */ 5166 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5167 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5168 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5169 5170 phba->max_vpi = LPFC_MAX_VPI; 5171 5172 /* This will be set to correct value after the read_config mbox */ 5173 phba->max_vports = 0; 5174 5175 /* Program the default value of vlan_id and fc_map */ 5176 phba->valid_vlan = 0; 5177 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5178 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5179 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5180 5181 /* 5182 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5183 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 5184 */ 5185 if (!phba->sli.ring) 5186 phba->sli.ring = kzalloc( 5187 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 5188 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5189 if (!phba->sli.ring) 5190 return -ENOMEM; 5191 5192 /* 5193 * It doesn't matter what family our adapter is in, we are 5194 * limited to 2 Pages, 512 SGEs, for our SGL. 5195 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5196 */ 5197 max_buf_size = (2 * SLI4_PAGE_SIZE); 5198 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5199 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5200 5201 /* 5202 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5203 * used to create the sg_dma_buf_pool must be dynamically calculated. 5204 */ 5205 5206 if (phba->cfg_enable_bg) { 5207 /* 5208 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5209 * the FCP rsp, and a SGE for each. Sice we have no control 5210 * over how many protection data segments the SCSI Layer 5211 * will hand us (ie: there could be one for every block 5212 * in the IO), we just allocate enough SGEs to accomidate 5213 * our max amount and we need to limit lpfc_sg_seg_cnt to 5214 * minimize the risk of running out. 5215 */ 5216 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5217 sizeof(struct fcp_rsp) + max_buf_size; 5218 5219 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5220 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5221 5222 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5223 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5224 } else { 5225 /* 5226 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5227 * the FCP rsp, a SGE for each, and a SGE for up to 5228 * cfg_sg_seg_cnt data segments. 5229 */ 5230 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5231 sizeof(struct fcp_rsp) + 5232 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 5233 5234 /* Total SGEs for scsi_sg_list */ 5235 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5236 /* 5237 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need 5238 * to post 1 page for the SGL. 5239 */ 5240 } 5241 5242 /* Initialize the host templates with the updated values. */ 5243 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5244 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5245 5246 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5247 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5248 else 5249 phba->cfg_sg_dma_buf_size = 5250 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5251 5252 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5253 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5254 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5255 phba->cfg_total_seg_cnt); 5256 5257 /* Initialize buffer queue management fields */ 5258 hbq_count = lpfc_sli_hbq_count(); 5259 for (i = 0; i < hbq_count; ++i) 5260 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5261 INIT_LIST_HEAD(&phba->rb_pend_list); 5262 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5263 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5264 5265 /* 5266 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5267 */ 5268 /* Initialize the Abort scsi buffer list used by driver */ 5269 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5270 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5271 /* This abort list used by worker thread */ 5272 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 5273 5274 /* 5275 * Initialize driver internal slow-path work queues 5276 */ 5277 5278 /* Driver internel slow-path CQ Event pool */ 5279 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5280 /* Response IOCB work queue list */ 5281 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5282 /* Asynchronous event CQ Event work queue list */ 5283 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5284 /* Fast-path XRI aborted CQ Event work queue list */ 5285 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5286 /* Slow-path XRI aborted CQ Event work queue list */ 5287 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5288 /* Receive queue CQ Event work queue list */ 5289 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5290 5291 /* Initialize extent block lists. */ 5292 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5293 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5294 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5295 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5296 5297 /* Initialize the driver internal SLI layer lists. */ 5298 lpfc_sli_setup(phba); 5299 lpfc_sli_queue_setup(phba); 5300 5301 /* Allocate device driver memory */ 5302 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5303 if (rc) 5304 return -ENOMEM; 5305 5306 /* IF Type 2 ports get initialized now. */ 5307 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5308 LPFC_SLI_INTF_IF_TYPE_2) { 5309 rc = lpfc_pci_function_reset(phba); 5310 if (unlikely(rc)) 5311 return -ENODEV; 5312 phba->temp_sensor_support = 1; 5313 } 5314 5315 /* Create the bootstrap mailbox command */ 5316 rc = lpfc_create_bootstrap_mbox(phba); 5317 if (unlikely(rc)) 5318 goto out_free_mem; 5319 5320 /* Set up the host's endian order with the device. */ 5321 rc = lpfc_setup_endian_order(phba); 5322 if (unlikely(rc)) 5323 goto out_free_bsmbx; 5324 5325 /* Set up the hba's configuration parameters. */ 5326 rc = lpfc_sli4_read_config(phba); 5327 if (unlikely(rc)) 5328 goto out_free_bsmbx; 5329 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 5330 if (unlikely(rc)) 5331 goto out_free_bsmbx; 5332 5333 /* IF Type 0 ports get initialized now. */ 5334 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5335 LPFC_SLI_INTF_IF_TYPE_0) { 5336 rc = lpfc_pci_function_reset(phba); 5337 if (unlikely(rc)) 5338 goto out_free_bsmbx; 5339 } 5340 5341 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5342 GFP_KERNEL); 5343 if (!mboxq) { 5344 rc = -ENOMEM; 5345 goto out_free_bsmbx; 5346 } 5347 5348 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5349 lpfc_supported_pages(mboxq); 5350 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5351 if (!rc) { 5352 mqe = &mboxq->u.mqe; 5353 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5354 LPFC_MAX_SUPPORTED_PAGES); 5355 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5356 switch (pn_page[i]) { 5357 case LPFC_SLI4_PARAMETERS: 5358 phba->sli4_hba.pc_sli4_params.supported = 1; 5359 break; 5360 default: 5361 break; 5362 } 5363 } 5364 /* Read the port's SLI4 Parameters capabilities if supported. */ 5365 if (phba->sli4_hba.pc_sli4_params.supported) 5366 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5367 if (rc) { 5368 mempool_free(mboxq, phba->mbox_mem_pool); 5369 rc = -EIO; 5370 goto out_free_bsmbx; 5371 } 5372 } 5373 /* 5374 * Get sli4 parameters that override parameters from Port capabilities. 5375 * If this call fails, it isn't critical unless the SLI4 parameters come 5376 * back in conflict. 5377 */ 5378 rc = lpfc_get_sli4_parameters(phba, mboxq); 5379 if (rc) { 5380 if (phba->sli4_hba.extents_in_use && 5381 phba->sli4_hba.rpi_hdrs_in_use) { 5382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5383 "2999 Unsupported SLI4 Parameters " 5384 "Extents and RPI headers enabled.\n"); 5385 goto out_free_bsmbx; 5386 } 5387 } 5388 mempool_free(mboxq, phba->mbox_mem_pool); 5389 5390 /* Verify OAS is supported */ 5391 lpfc_sli4_oas_verify(phba); 5392 if (phba->cfg_fof) 5393 fof_vectors = 1; 5394 5395 /* Verify all the SLI4 queues */ 5396 rc = lpfc_sli4_queue_verify(phba); 5397 if (rc) 5398 goto out_free_bsmbx; 5399 5400 /* Create driver internal CQE event pool */ 5401 rc = lpfc_sli4_cq_event_pool_create(phba); 5402 if (rc) 5403 goto out_free_bsmbx; 5404 5405 /* Initialize sgl lists per host */ 5406 lpfc_init_sgl_list(phba); 5407 5408 /* Allocate and initialize active sgl array */ 5409 rc = lpfc_init_active_sgl_array(phba); 5410 if (rc) { 5411 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5412 "1430 Failed to initialize sgl list.\n"); 5413 goto out_destroy_cq_event_pool; 5414 } 5415 rc = lpfc_sli4_init_rpi_hdrs(phba); 5416 if (rc) { 5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5418 "1432 Failed to initialize rpi headers.\n"); 5419 goto out_free_active_sgl; 5420 } 5421 5422 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5423 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5424 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5425 GFP_KERNEL); 5426 if (!phba->fcf.fcf_rr_bmask) { 5427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5428 "2759 Failed allocate memory for FCF round " 5429 "robin failover bmask\n"); 5430 rc = -ENOMEM; 5431 goto out_remove_rpi_hdrs; 5432 } 5433 5434 phba->sli4_hba.fcp_eq_hdl = 5435 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5436 (fof_vectors + phba->cfg_fcp_io_channel)), 5437 GFP_KERNEL); 5438 if (!phba->sli4_hba.fcp_eq_hdl) { 5439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5440 "2572 Failed allocate memory for " 5441 "fast-path per-EQ handle array\n"); 5442 rc = -ENOMEM; 5443 goto out_free_fcf_rr_bmask; 5444 } 5445 5446 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5447 (fof_vectors + 5448 phba->cfg_fcp_io_channel)), GFP_KERNEL); 5449 if (!phba->sli4_hba.msix_entries) { 5450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5451 "2573 Failed allocate memory for msi-x " 5452 "interrupt vector entries\n"); 5453 rc = -ENOMEM; 5454 goto out_free_fcp_eq_hdl; 5455 } 5456 5457 phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) * 5458 phba->sli4_hba.num_present_cpu), 5459 GFP_KERNEL); 5460 if (!phba->sli4_hba.cpu_map) { 5461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5462 "3327 Failed allocate memory for msi-x " 5463 "interrupt vector mapping\n"); 5464 rc = -ENOMEM; 5465 goto out_free_msix; 5466 } 5467 if (lpfc_used_cpu == NULL) { 5468 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu), 5469 GFP_KERNEL); 5470 if (!lpfc_used_cpu) { 5471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5472 "3335 Failed allocate memory for msi-x " 5473 "interrupt vector mapping\n"); 5474 kfree(phba->sli4_hba.cpu_map); 5475 rc = -ENOMEM; 5476 goto out_free_msix; 5477 } 5478 for (i = 0; i < lpfc_present_cpu; i++) 5479 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 5480 } 5481 5482 /* Initialize io channels for round robin */ 5483 cpup = phba->sli4_hba.cpu_map; 5484 rc = 0; 5485 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 5486 cpup->channel_id = rc; 5487 rc++; 5488 if (rc >= phba->cfg_fcp_io_channel) 5489 rc = 0; 5490 } 5491 5492 /* 5493 * Enable sr-iov virtual functions if supported and configured 5494 * through the module parameter. 5495 */ 5496 if (phba->cfg_sriov_nr_virtfn > 0) { 5497 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5498 phba->cfg_sriov_nr_virtfn); 5499 if (rc) { 5500 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5501 "3020 Requested number of SR-IOV " 5502 "virtual functions (%d) is not " 5503 "supported\n", 5504 phba->cfg_sriov_nr_virtfn); 5505 phba->cfg_sriov_nr_virtfn = 0; 5506 } 5507 } 5508 5509 return 0; 5510 5511out_free_msix: 5512 kfree(phba->sli4_hba.msix_entries); 5513out_free_fcp_eq_hdl: 5514 kfree(phba->sli4_hba.fcp_eq_hdl); 5515out_free_fcf_rr_bmask: 5516 kfree(phba->fcf.fcf_rr_bmask); 5517out_remove_rpi_hdrs: 5518 lpfc_sli4_remove_rpi_hdrs(phba); 5519out_free_active_sgl: 5520 lpfc_free_active_sgl(phba); 5521out_destroy_cq_event_pool: 5522 lpfc_sli4_cq_event_pool_destroy(phba); 5523out_free_bsmbx: 5524 lpfc_destroy_bootstrap_mbox(phba); 5525out_free_mem: 5526 lpfc_mem_free(phba); 5527 return rc; 5528} 5529 5530/** 5531 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5532 * @phba: pointer to lpfc hba data structure. 5533 * 5534 * This routine is invoked to unset the driver internal resources set up 5535 * specific for supporting the SLI-4 HBA device it attached to. 5536 **/ 5537static void 5538lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5539{ 5540 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5541 5542 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 5543 kfree(phba->sli4_hba.cpu_map); 5544 phba->sli4_hba.num_present_cpu = 0; 5545 phba->sli4_hba.num_online_cpu = 0; 5546 phba->sli4_hba.curr_disp_cpu = 0; 5547 5548 /* Free memory allocated for msi-x interrupt vector entries */ 5549 kfree(phba->sli4_hba.msix_entries); 5550 5551 /* Free memory allocated for fast-path work queue handles */ 5552 kfree(phba->sli4_hba.fcp_eq_hdl); 5553 5554 /* Free the allocated rpi headers. */ 5555 lpfc_sli4_remove_rpi_hdrs(phba); 5556 lpfc_sli4_remove_rpis(phba); 5557 5558 /* Free eligible FCF index bmask */ 5559 kfree(phba->fcf.fcf_rr_bmask); 5560 5561 /* Free the ELS sgl list */ 5562 lpfc_free_active_sgl(phba); 5563 lpfc_free_els_sgl_list(phba); 5564 5565 /* Free the completion queue EQ event pool */ 5566 lpfc_sli4_cq_event_release_all(phba); 5567 lpfc_sli4_cq_event_pool_destroy(phba); 5568 5569 /* Release resource identifiers. */ 5570 lpfc_sli4_dealloc_resource_identifiers(phba); 5571 5572 /* Free the bsmbx region. */ 5573 lpfc_destroy_bootstrap_mbox(phba); 5574 5575 /* Free the SLI Layer memory with SLI4 HBAs */ 5576 lpfc_mem_free_all(phba); 5577 5578 /* Free the current connect table */ 5579 list_for_each_entry_safe(conn_entry, next_conn_entry, 5580 &phba->fcf_conn_rec_list, list) { 5581 list_del_init(&conn_entry->list); 5582 kfree(conn_entry); 5583 } 5584 5585 return; 5586} 5587 5588/** 5589 * lpfc_init_api_table_setup - Set up init api function jump table 5590 * @phba: The hba struct for which this call is being executed. 5591 * @dev_grp: The HBA PCI-Device group number. 5592 * 5593 * This routine sets up the device INIT interface API function jump table 5594 * in @phba struct. 5595 * 5596 * Returns: 0 - success, -ENODEV - failure. 5597 **/ 5598int 5599lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5600{ 5601 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5602 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5603 phba->lpfc_selective_reset = lpfc_selective_reset; 5604 switch (dev_grp) { 5605 case LPFC_PCI_DEV_LP: 5606 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5607 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5608 phba->lpfc_stop_port = lpfc_stop_port_s3; 5609 break; 5610 case LPFC_PCI_DEV_OC: 5611 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5612 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5613 phba->lpfc_stop_port = lpfc_stop_port_s4; 5614 break; 5615 default: 5616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5617 "1431 Invalid HBA PCI-device group: 0x%x\n", 5618 dev_grp); 5619 return -ENODEV; 5620 break; 5621 } 5622 return 0; 5623} 5624 5625/** 5626 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5627 * @phba: pointer to lpfc hba data structure. 5628 * 5629 * This routine is invoked to set up the driver internal resources before the 5630 * device specific resource setup to support the HBA device it attached to. 5631 * 5632 * Return codes 5633 * 0 - successful 5634 * other values - error 5635 **/ 5636static int 5637lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5638{ 5639 /* 5640 * Driver resources common to all SLI revisions 5641 */ 5642 atomic_set(&phba->fast_event_count, 0); 5643 spin_lock_init(&phba->hbalock); 5644 5645 /* Initialize ndlp management spinlock */ 5646 spin_lock_init(&phba->ndlp_lock); 5647 5648 INIT_LIST_HEAD(&phba->port_list); 5649 INIT_LIST_HEAD(&phba->work_list); 5650 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5651 5652 /* Initialize the wait queue head for the kernel thread */ 5653 init_waitqueue_head(&phba->work_waitq); 5654 5655 /* Initialize the scsi buffer list used by driver for scsi IO */ 5656 spin_lock_init(&phba->scsi_buf_list_get_lock); 5657 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5658 spin_lock_init(&phba->scsi_buf_list_put_lock); 5659 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5660 5661 /* Initialize the fabric iocb list */ 5662 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5663 5664 /* Initialize list to save ELS buffers */ 5665 INIT_LIST_HEAD(&phba->elsbuf); 5666 5667 /* Initialize FCF connection rec list */ 5668 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5669 5670 /* Initialize OAS configuration list */ 5671 spin_lock_init(&phba->devicelock); 5672 INIT_LIST_HEAD(&phba->luns); 5673 5674 return 0; 5675} 5676 5677/** 5678 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5679 * @phba: pointer to lpfc hba data structure. 5680 * 5681 * This routine is invoked to set up the driver internal resources after the 5682 * device specific resource setup to support the HBA device it attached to. 5683 * 5684 * Return codes 5685 * 0 - successful 5686 * other values - error 5687 **/ 5688static int 5689lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5690{ 5691 int error; 5692 5693 /* Startup the kernel thread for this host adapter. */ 5694 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5695 "lpfc_worker_%d", phba->brd_no); 5696 if (IS_ERR(phba->worker_thread)) { 5697 error = PTR_ERR(phba->worker_thread); 5698 return error; 5699 } 5700 5701 return 0; 5702} 5703 5704/** 5705 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5706 * @phba: pointer to lpfc hba data structure. 5707 * 5708 * This routine is invoked to unset the driver internal resources set up after 5709 * the device specific resource setup for supporting the HBA device it 5710 * attached to. 5711 **/ 5712static void 5713lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5714{ 5715 /* Stop kernel worker thread */ 5716 kthread_stop(phba->worker_thread); 5717} 5718 5719/** 5720 * lpfc_free_iocb_list - Free iocb list. 5721 * @phba: pointer to lpfc hba data structure. 5722 * 5723 * This routine is invoked to free the driver's IOCB list and memory. 5724 **/ 5725static void 5726lpfc_free_iocb_list(struct lpfc_hba *phba) 5727{ 5728 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5729 5730 spin_lock_irq(&phba->hbalock); 5731 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5732 &phba->lpfc_iocb_list, list) { 5733 list_del(&iocbq_entry->list); 5734 kfree(iocbq_entry); 5735 phba->total_iocbq_bufs--; 5736 } 5737 spin_unlock_irq(&phba->hbalock); 5738 5739 return; 5740} 5741 5742/** 5743 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5744 * @phba: pointer to lpfc hba data structure. 5745 * 5746 * This routine is invoked to allocate and initizlize the driver's IOCB 5747 * list and set up the IOCB tag array accordingly. 5748 * 5749 * Return codes 5750 * 0 - successful 5751 * other values - error 5752 **/ 5753static int 5754lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5755{ 5756 struct lpfc_iocbq *iocbq_entry = NULL; 5757 uint16_t iotag; 5758 int i; 5759 5760 /* Initialize and populate the iocb list per host. */ 5761 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5762 for (i = 0; i < iocb_count; i++) { 5763 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5764 if (iocbq_entry == NULL) { 5765 printk(KERN_ERR "%s: only allocated %d iocbs of " 5766 "expected %d count. Unloading driver.\n", 5767 __func__, i, LPFC_IOCB_LIST_CNT); 5768 goto out_free_iocbq; 5769 } 5770 5771 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5772 if (iotag == 0) { 5773 kfree(iocbq_entry); 5774 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5775 "Unloading driver.\n", __func__); 5776 goto out_free_iocbq; 5777 } 5778 iocbq_entry->sli4_lxritag = NO_XRI; 5779 iocbq_entry->sli4_xritag = NO_XRI; 5780 5781 spin_lock_irq(&phba->hbalock); 5782 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5783 phba->total_iocbq_bufs++; 5784 spin_unlock_irq(&phba->hbalock); 5785 } 5786 5787 return 0; 5788 5789out_free_iocbq: 5790 lpfc_free_iocb_list(phba); 5791 5792 return -ENOMEM; 5793} 5794 5795/** 5796 * lpfc_free_sgl_list - Free a given sgl list. 5797 * @phba: pointer to lpfc hba data structure. 5798 * @sglq_list: pointer to the head of sgl list. 5799 * 5800 * This routine is invoked to free a give sgl list and memory. 5801 **/ 5802void 5803lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5804{ 5805 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5806 5807 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5808 list_del(&sglq_entry->list); 5809 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5810 kfree(sglq_entry); 5811 } 5812} 5813 5814/** 5815 * lpfc_free_els_sgl_list - Free els sgl list. 5816 * @phba: pointer to lpfc hba data structure. 5817 * 5818 * This routine is invoked to free the driver's els sgl list and memory. 5819 **/ 5820static void 5821lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5822{ 5823 LIST_HEAD(sglq_list); 5824 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; 5825 5826 /* Retrieve all els sgls from driver list */ 5827 spin_lock_irq(&phba->hbalock); 5828 spin_lock(&pring->ring_lock); 5829 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5830 spin_unlock(&pring->ring_lock); 5831 spin_unlock_irq(&phba->hbalock); 5832 5833 /* Now free the sgl list */ 5834 lpfc_free_sgl_list(phba, &sglq_list); 5835} 5836 5837/** 5838 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5839 * @phba: pointer to lpfc hba data structure. 5840 * 5841 * This routine is invoked to allocate the driver's active sgl memory. 5842 * This array will hold the sglq_entry's for active IOs. 5843 **/ 5844static int 5845lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5846{ 5847 int size; 5848 size = sizeof(struct lpfc_sglq *); 5849 size *= phba->sli4_hba.max_cfg_param.max_xri; 5850 5851 phba->sli4_hba.lpfc_sglq_active_list = 5852 kzalloc(size, GFP_KERNEL); 5853 if (!phba->sli4_hba.lpfc_sglq_active_list) 5854 return -ENOMEM; 5855 return 0; 5856} 5857 5858/** 5859 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5860 * @phba: pointer to lpfc hba data structure. 5861 * 5862 * This routine is invoked to walk through the array of active sglq entries 5863 * and free all of the resources. 5864 * This is just a place holder for now. 5865 **/ 5866static void 5867lpfc_free_active_sgl(struct lpfc_hba *phba) 5868{ 5869 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5870} 5871 5872/** 5873 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5874 * @phba: pointer to lpfc hba data structure. 5875 * 5876 * This routine is invoked to allocate and initizlize the driver's sgl 5877 * list and set up the sgl xritag tag array accordingly. 5878 * 5879 **/ 5880static void 5881lpfc_init_sgl_list(struct lpfc_hba *phba) 5882{ 5883 /* Initialize and populate the sglq list per host/VF. */ 5884 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5885 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5886 5887 /* els xri-sgl book keeping */ 5888 phba->sli4_hba.els_xri_cnt = 0; 5889 5890 /* scsi xri-buffer book keeping */ 5891 phba->sli4_hba.scsi_xri_cnt = 0; 5892} 5893 5894/** 5895 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5896 * @phba: pointer to lpfc hba data structure. 5897 * 5898 * This routine is invoked to post rpi header templates to the 5899 * port for those SLI4 ports that do not support extents. This routine 5900 * posts a PAGE_SIZE memory region to the port to hold up to 5901 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5902 * and should be called only when interrupts are disabled. 5903 * 5904 * Return codes 5905 * 0 - successful 5906 * -ERROR - otherwise. 5907 **/ 5908int 5909lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5910{ 5911 int rc = 0; 5912 struct lpfc_rpi_hdr *rpi_hdr; 5913 5914 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5915 if (!phba->sli4_hba.rpi_hdrs_in_use) 5916 return rc; 5917 if (phba->sli4_hba.extents_in_use) 5918 return -EIO; 5919 5920 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5921 if (!rpi_hdr) { 5922 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5923 "0391 Error during rpi post operation\n"); 5924 lpfc_sli4_remove_rpis(phba); 5925 rc = -ENODEV; 5926 } 5927 5928 return rc; 5929} 5930 5931/** 5932 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5933 * @phba: pointer to lpfc hba data structure. 5934 * 5935 * This routine is invoked to allocate a single 4KB memory region to 5936 * support rpis and stores them in the phba. This single region 5937 * provides support for up to 64 rpis. The region is used globally 5938 * by the device. 5939 * 5940 * Returns: 5941 * A valid rpi hdr on success. 5942 * A NULL pointer on any failure. 5943 **/ 5944struct lpfc_rpi_hdr * 5945lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5946{ 5947 uint16_t rpi_limit, curr_rpi_range; 5948 struct lpfc_dmabuf *dmabuf; 5949 struct lpfc_rpi_hdr *rpi_hdr; 5950 uint32_t rpi_count; 5951 5952 /* 5953 * If the SLI4 port supports extents, posting the rpi header isn't 5954 * required. Set the expected maximum count and let the actual value 5955 * get set when extents are fully allocated. 5956 */ 5957 if (!phba->sli4_hba.rpi_hdrs_in_use) 5958 return NULL; 5959 if (phba->sli4_hba.extents_in_use) 5960 return NULL; 5961 5962 /* The limit on the logical index is just the max_rpi count. */ 5963 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5964 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5965 5966 spin_lock_irq(&phba->hbalock); 5967 /* 5968 * Establish the starting RPI in this header block. The starting 5969 * rpi is normalized to a zero base because the physical rpi is 5970 * port based. 5971 */ 5972 curr_rpi_range = phba->sli4_hba.next_rpi; 5973 spin_unlock_irq(&phba->hbalock); 5974 5975 /* 5976 * The port has a limited number of rpis. The increment here 5977 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5978 * and to allow the full max_rpi range per port. 5979 */ 5980 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5981 rpi_count = rpi_limit - curr_rpi_range; 5982 else 5983 rpi_count = LPFC_RPI_HDR_COUNT; 5984 5985 if (!rpi_count) 5986 return NULL; 5987 /* 5988 * First allocate the protocol header region for the port. The 5989 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5990 */ 5991 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5992 if (!dmabuf) 5993 return NULL; 5994 5995 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 5996 LPFC_HDR_TEMPLATE_SIZE, 5997 &dmabuf->phys, GFP_KERNEL); 5998 if (!dmabuf->virt) { 5999 rpi_hdr = NULL; 6000 goto err_free_dmabuf; 6001 } 6002 6003 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6004 rpi_hdr = NULL; 6005 goto err_free_coherent; 6006 } 6007 6008 /* Save the rpi header data for cleanup later. */ 6009 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6010 if (!rpi_hdr) 6011 goto err_free_coherent; 6012 6013 rpi_hdr->dmabuf = dmabuf; 6014 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6015 rpi_hdr->page_count = 1; 6016 spin_lock_irq(&phba->hbalock); 6017 6018 /* The rpi_hdr stores the logical index only. */ 6019 rpi_hdr->start_rpi = curr_rpi_range; 6020 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6021 6022 /* 6023 * The next_rpi stores the next logical module-64 rpi value used 6024 * to post physical rpis in subsequent rpi postings. 6025 */ 6026 phba->sli4_hba.next_rpi += rpi_count; 6027 spin_unlock_irq(&phba->hbalock); 6028 return rpi_hdr; 6029 6030 err_free_coherent: 6031 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6032 dmabuf->virt, dmabuf->phys); 6033 err_free_dmabuf: 6034 kfree(dmabuf); 6035 return NULL; 6036} 6037 6038/** 6039 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6040 * @phba: pointer to lpfc hba data structure. 6041 * 6042 * This routine is invoked to remove all memory resources allocated 6043 * to support rpis for SLI4 ports not supporting extents. This routine 6044 * presumes the caller has released all rpis consumed by fabric or port 6045 * logins and is prepared to have the header pages removed. 6046 **/ 6047void 6048lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6049{ 6050 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6051 6052 if (!phba->sli4_hba.rpi_hdrs_in_use) 6053 goto exit; 6054 6055 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6056 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6057 list_del(&rpi_hdr->list); 6058 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6059 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6060 kfree(rpi_hdr->dmabuf); 6061 kfree(rpi_hdr); 6062 } 6063 exit: 6064 /* There are no rpis available to the port now. */ 6065 phba->sli4_hba.next_rpi = 0; 6066} 6067 6068/** 6069 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6070 * @pdev: pointer to pci device data structure. 6071 * 6072 * This routine is invoked to allocate the driver hba data structure for an 6073 * HBA device. If the allocation is successful, the phba reference to the 6074 * PCI device data structure is set. 6075 * 6076 * Return codes 6077 * pointer to @phba - successful 6078 * NULL - error 6079 **/ 6080static struct lpfc_hba * 6081lpfc_hba_alloc(struct pci_dev *pdev) 6082{ 6083 struct lpfc_hba *phba; 6084 6085 /* Allocate memory for HBA structure */ 6086 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6087 if (!phba) { 6088 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6089 return NULL; 6090 } 6091 6092 /* Set reference to PCI device in HBA structure */ 6093 phba->pcidev = pdev; 6094 6095 /* Assign an unused board number */ 6096 phba->brd_no = lpfc_get_instance(); 6097 if (phba->brd_no < 0) { 6098 kfree(phba); 6099 return NULL; 6100 } 6101 6102 spin_lock_init(&phba->ct_ev_lock); 6103 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6104 6105 return phba; 6106} 6107 6108/** 6109 * lpfc_hba_free - Free driver hba data structure with a device. 6110 * @phba: pointer to lpfc hba data structure. 6111 * 6112 * This routine is invoked to free the driver hba data structure with an 6113 * HBA device. 6114 **/ 6115static void 6116lpfc_hba_free(struct lpfc_hba *phba) 6117{ 6118 /* Release the driver assigned board number */ 6119 idr_remove(&lpfc_hba_index, phba->brd_no); 6120 6121 /* Free memory allocated with sli rings */ 6122 kfree(phba->sli.ring); 6123 phba->sli.ring = NULL; 6124 6125 kfree(phba); 6126 return; 6127} 6128 6129/** 6130 * lpfc_create_shost - Create hba physical port with associated scsi host. 6131 * @phba: pointer to lpfc hba data structure. 6132 * 6133 * This routine is invoked to create HBA physical port and associate a SCSI 6134 * host with it. 6135 * 6136 * Return codes 6137 * 0 - successful 6138 * other values - error 6139 **/ 6140static int 6141lpfc_create_shost(struct lpfc_hba *phba) 6142{ 6143 struct lpfc_vport *vport; 6144 struct Scsi_Host *shost; 6145 6146 /* Initialize HBA FC structure */ 6147 phba->fc_edtov = FF_DEF_EDTOV; 6148 phba->fc_ratov = FF_DEF_RATOV; 6149 phba->fc_altov = FF_DEF_ALTOV; 6150 phba->fc_arbtov = FF_DEF_ARBTOV; 6151 6152 atomic_set(&phba->sdev_cnt, 0); 6153 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6154 if (!vport) 6155 return -ENODEV; 6156 6157 shost = lpfc_shost_from_vport(vport); 6158 phba->pport = vport; 6159 lpfc_debugfs_initialize(vport); 6160 /* Put reference to SCSI host to driver's device private data */ 6161 pci_set_drvdata(phba->pcidev, shost); 6162 6163 return 0; 6164} 6165 6166/** 6167 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6168 * @phba: pointer to lpfc hba data structure. 6169 * 6170 * This routine is invoked to destroy HBA physical port and the associated 6171 * SCSI host. 6172 **/ 6173static void 6174lpfc_destroy_shost(struct lpfc_hba *phba) 6175{ 6176 struct lpfc_vport *vport = phba->pport; 6177 6178 /* Destroy physical port that associated with the SCSI host */ 6179 destroy_port(vport); 6180 6181 return; 6182} 6183 6184/** 6185 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6186 * @phba: pointer to lpfc hba data structure. 6187 * @shost: the shost to be used to detect Block guard settings. 6188 * 6189 * This routine sets up the local Block guard protocol settings for @shost. 6190 * This routine also allocates memory for debugging bg buffers. 6191 **/ 6192static void 6193lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6194{ 6195 uint32_t old_mask; 6196 uint32_t old_guard; 6197 6198 int pagecnt = 10; 6199 if (lpfc_prot_mask && lpfc_prot_guard) { 6200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6201 "1478 Registering BlockGuard with the " 6202 "SCSI layer\n"); 6203 6204 old_mask = lpfc_prot_mask; 6205 old_guard = lpfc_prot_guard; 6206 6207 /* Only allow supported values */ 6208 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6209 SHOST_DIX_TYPE0_PROTECTION | 6210 SHOST_DIX_TYPE1_PROTECTION); 6211 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 6212 6213 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6214 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6215 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6216 6217 if (lpfc_prot_mask && lpfc_prot_guard) { 6218 if ((old_mask != lpfc_prot_mask) || 6219 (old_guard != lpfc_prot_guard)) 6220 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6221 "1475 Registering BlockGuard with the " 6222 "SCSI layer: mask %d guard %d\n", 6223 lpfc_prot_mask, lpfc_prot_guard); 6224 6225 scsi_host_set_prot(shost, lpfc_prot_mask); 6226 scsi_host_set_guard(shost, lpfc_prot_guard); 6227 } else 6228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6229 "1479 Not Registering BlockGuard with the SCSI " 6230 "layer, Bad protection parameters: %d %d\n", 6231 old_mask, old_guard); 6232 } 6233 6234 if (!_dump_buf_data) { 6235 while (pagecnt) { 6236 spin_lock_init(&_dump_buf_lock); 6237 _dump_buf_data = 6238 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6239 if (_dump_buf_data) { 6240 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6241 "9043 BLKGRD: allocated %d pages for " 6242 "_dump_buf_data at 0x%p\n", 6243 (1 << pagecnt), _dump_buf_data); 6244 _dump_buf_data_order = pagecnt; 6245 memset(_dump_buf_data, 0, 6246 ((1 << PAGE_SHIFT) << pagecnt)); 6247 break; 6248 } else 6249 --pagecnt; 6250 } 6251 if (!_dump_buf_data_order) 6252 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6253 "9044 BLKGRD: ERROR unable to allocate " 6254 "memory for hexdump\n"); 6255 } else 6256 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6257 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6258 "\n", _dump_buf_data); 6259 if (!_dump_buf_dif) { 6260 while (pagecnt) { 6261 _dump_buf_dif = 6262 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6263 if (_dump_buf_dif) { 6264 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6265 "9046 BLKGRD: allocated %d pages for " 6266 "_dump_buf_dif at 0x%p\n", 6267 (1 << pagecnt), _dump_buf_dif); 6268 _dump_buf_dif_order = pagecnt; 6269 memset(_dump_buf_dif, 0, 6270 ((1 << PAGE_SHIFT) << pagecnt)); 6271 break; 6272 } else 6273 --pagecnt; 6274 } 6275 if (!_dump_buf_dif_order) 6276 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6277 "9047 BLKGRD: ERROR unable to allocate " 6278 "memory for hexdump\n"); 6279 } else 6280 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6281 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6282 _dump_buf_dif); 6283} 6284 6285/** 6286 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6287 * @phba: pointer to lpfc hba data structure. 6288 * 6289 * This routine is invoked to perform all the necessary post initialization 6290 * setup for the device. 6291 **/ 6292static void 6293lpfc_post_init_setup(struct lpfc_hba *phba) 6294{ 6295 struct Scsi_Host *shost; 6296 struct lpfc_adapter_event_header adapter_event; 6297 6298 /* Get the default values for Model Name and Description */ 6299 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6300 6301 /* 6302 * hba setup may have changed the hba_queue_depth so we need to 6303 * adjust the value of can_queue. 6304 */ 6305 shost = pci_get_drvdata(phba->pcidev); 6306 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6307 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6308 lpfc_setup_bg(phba, shost); 6309 6310 lpfc_host_attrib_init(shost); 6311 6312 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6313 spin_lock_irq(shost->host_lock); 6314 lpfc_poll_start_timer(phba); 6315 spin_unlock_irq(shost->host_lock); 6316 } 6317 6318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6319 "0428 Perform SCSI scan\n"); 6320 /* Send board arrival event to upper layer */ 6321 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6322 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6323 fc_host_post_vendor_event(shost, fc_get_event_number(), 6324 sizeof(adapter_event), 6325 (char *) &adapter_event, 6326 LPFC_NL_VENDOR_ID); 6327 return; 6328} 6329 6330/** 6331 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6332 * @phba: pointer to lpfc hba data structure. 6333 * 6334 * This routine is invoked to set up the PCI device memory space for device 6335 * with SLI-3 interface spec. 6336 * 6337 * Return codes 6338 * 0 - successful 6339 * other values - error 6340 **/ 6341static int 6342lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6343{ 6344 struct pci_dev *pdev; 6345 unsigned long bar0map_len, bar2map_len; 6346 int i, hbq_count; 6347 void *ptr; 6348 int error = -ENODEV; 6349 6350 /* Obtain PCI device reference */ 6351 if (!phba->pcidev) 6352 return error; 6353 else 6354 pdev = phba->pcidev; 6355 6356 /* Set the device DMA mask size */ 6357 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6358 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6359 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6360 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6361 return error; 6362 } 6363 } 6364 6365 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6366 * required by each mapping. 6367 */ 6368 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6369 bar0map_len = pci_resource_len(pdev, 0); 6370 6371 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6372 bar2map_len = pci_resource_len(pdev, 2); 6373 6374 /* Map HBA SLIM to a kernel virtual address. */ 6375 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6376 if (!phba->slim_memmap_p) { 6377 dev_printk(KERN_ERR, &pdev->dev, 6378 "ioremap failed for SLIM memory.\n"); 6379 goto out; 6380 } 6381 6382 /* Map HBA Control Registers to a kernel virtual address. */ 6383 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6384 if (!phba->ctrl_regs_memmap_p) { 6385 dev_printk(KERN_ERR, &pdev->dev, 6386 "ioremap failed for HBA control registers.\n"); 6387 goto out_iounmap_slim; 6388 } 6389 6390 /* Allocate memory for SLI-2 structures */ 6391 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6392 &phba->slim2p.phys, GFP_KERNEL); 6393 if (!phba->slim2p.virt) 6394 goto out_iounmap; 6395 6396 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6397 phba->mbox_ext = (phba->slim2p.virt + 6398 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 6399 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 6400 phba->IOCBs = (phba->slim2p.virt + 6401 offsetof(struct lpfc_sli2_slim, IOCBs)); 6402 6403 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 6404 lpfc_sli_hbq_size(), 6405 &phba->hbqslimp.phys, 6406 GFP_KERNEL); 6407 if (!phba->hbqslimp.virt) 6408 goto out_free_slim; 6409 6410 hbq_count = lpfc_sli_hbq_count(); 6411 ptr = phba->hbqslimp.virt; 6412 for (i = 0; i < hbq_count; ++i) { 6413 phba->hbqs[i].hbq_virt = ptr; 6414 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6415 ptr += (lpfc_hbq_defs[i]->entry_count * 6416 sizeof(struct lpfc_hbq_entry)); 6417 } 6418 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6419 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6420 6421 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6422 6423 INIT_LIST_HEAD(&phba->rb_pend_list); 6424 6425 phba->MBslimaddr = phba->slim_memmap_p; 6426 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6427 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6428 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6429 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6430 6431 return 0; 6432 6433out_free_slim: 6434 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6435 phba->slim2p.virt, phba->slim2p.phys); 6436out_iounmap: 6437 iounmap(phba->ctrl_regs_memmap_p); 6438out_iounmap_slim: 6439 iounmap(phba->slim_memmap_p); 6440out: 6441 return error; 6442} 6443 6444/** 6445 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6446 * @phba: pointer to lpfc hba data structure. 6447 * 6448 * This routine is invoked to unset the PCI device memory space for device 6449 * with SLI-3 interface spec. 6450 **/ 6451static void 6452lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6453{ 6454 struct pci_dev *pdev; 6455 6456 /* Obtain PCI device reference */ 6457 if (!phba->pcidev) 6458 return; 6459 else 6460 pdev = phba->pcidev; 6461 6462 /* Free coherent DMA memory allocated */ 6463 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6464 phba->hbqslimp.virt, phba->hbqslimp.phys); 6465 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6466 phba->slim2p.virt, phba->slim2p.phys); 6467 6468 /* I/O memory unmap */ 6469 iounmap(phba->ctrl_regs_memmap_p); 6470 iounmap(phba->slim_memmap_p); 6471 6472 return; 6473} 6474 6475/** 6476 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6477 * @phba: pointer to lpfc hba data structure. 6478 * 6479 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6480 * done and check status. 6481 * 6482 * Return 0 if successful, otherwise -ENODEV. 6483 **/ 6484int 6485lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6486{ 6487 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6488 struct lpfc_register reg_data; 6489 int i, port_error = 0; 6490 uint32_t if_type; 6491 6492 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6493 memset(®_data, 0, sizeof(reg_data)); 6494 if (!phba->sli4_hba.PSMPHRregaddr) 6495 return -ENODEV; 6496 6497 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6498 for (i = 0; i < 3000; i++) { 6499 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6500 &portsmphr_reg.word0) || 6501 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6502 /* Port has a fatal POST error, break out */ 6503 port_error = -ENODEV; 6504 break; 6505 } 6506 if (LPFC_POST_STAGE_PORT_READY == 6507 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6508 break; 6509 msleep(10); 6510 } 6511 6512 /* 6513 * If there was a port error during POST, then don't proceed with 6514 * other register reads as the data may not be valid. Just exit. 6515 */ 6516 if (port_error) { 6517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6518 "1408 Port Failed POST - portsmphr=0x%x, " 6519 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6520 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6521 portsmphr_reg.word0, 6522 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6523 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6524 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6525 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6526 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6527 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6528 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6529 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6530 } else { 6531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6532 "2534 Device Info: SLIFamily=0x%x, " 6533 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6534 "SLIHint_2=0x%x, FT=0x%x\n", 6535 bf_get(lpfc_sli_intf_sli_family, 6536 &phba->sli4_hba.sli_intf), 6537 bf_get(lpfc_sli_intf_slirev, 6538 &phba->sli4_hba.sli_intf), 6539 bf_get(lpfc_sli_intf_if_type, 6540 &phba->sli4_hba.sli_intf), 6541 bf_get(lpfc_sli_intf_sli_hint1, 6542 &phba->sli4_hba.sli_intf), 6543 bf_get(lpfc_sli_intf_sli_hint2, 6544 &phba->sli4_hba.sli_intf), 6545 bf_get(lpfc_sli_intf_func_type, 6546 &phba->sli4_hba.sli_intf)); 6547 /* 6548 * Check for other Port errors during the initialization 6549 * process. Fail the load if the port did not come up 6550 * correctly. 6551 */ 6552 if_type = bf_get(lpfc_sli_intf_if_type, 6553 &phba->sli4_hba.sli_intf); 6554 switch (if_type) { 6555 case LPFC_SLI_INTF_IF_TYPE_0: 6556 phba->sli4_hba.ue_mask_lo = 6557 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6558 phba->sli4_hba.ue_mask_hi = 6559 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6560 uerrlo_reg.word0 = 6561 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6562 uerrhi_reg.word0 = 6563 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6564 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6565 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6567 "1422 Unrecoverable Error " 6568 "Detected during POST " 6569 "uerr_lo_reg=0x%x, " 6570 "uerr_hi_reg=0x%x, " 6571 "ue_mask_lo_reg=0x%x, " 6572 "ue_mask_hi_reg=0x%x\n", 6573 uerrlo_reg.word0, 6574 uerrhi_reg.word0, 6575 phba->sli4_hba.ue_mask_lo, 6576 phba->sli4_hba.ue_mask_hi); 6577 port_error = -ENODEV; 6578 } 6579 break; 6580 case LPFC_SLI_INTF_IF_TYPE_2: 6581 /* Final checks. The port status should be clean. */ 6582 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6583 ®_data.word0) || 6584 (bf_get(lpfc_sliport_status_err, ®_data) && 6585 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6586 phba->work_status[0] = 6587 readl(phba->sli4_hba.u.if_type2. 6588 ERR1regaddr); 6589 phba->work_status[1] = 6590 readl(phba->sli4_hba.u.if_type2. 6591 ERR2regaddr); 6592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6593 "2888 Unrecoverable port error " 6594 "following POST: port status reg " 6595 "0x%x, port_smphr reg 0x%x, " 6596 "error 1=0x%x, error 2=0x%x\n", 6597 reg_data.word0, 6598 portsmphr_reg.word0, 6599 phba->work_status[0], 6600 phba->work_status[1]); 6601 port_error = -ENODEV; 6602 } 6603 break; 6604 case LPFC_SLI_INTF_IF_TYPE_1: 6605 default: 6606 break; 6607 } 6608 } 6609 return port_error; 6610} 6611 6612/** 6613 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6614 * @phba: pointer to lpfc hba data structure. 6615 * @if_type: The SLI4 interface type getting configured. 6616 * 6617 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6618 * memory map. 6619 **/ 6620static void 6621lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6622{ 6623 switch (if_type) { 6624 case LPFC_SLI_INTF_IF_TYPE_0: 6625 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6626 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6627 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6628 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6629 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6630 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6631 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6632 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6633 phba->sli4_hba.SLIINTFregaddr = 6634 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6635 break; 6636 case LPFC_SLI_INTF_IF_TYPE_2: 6637 phba->sli4_hba.u.if_type2.ERR1regaddr = 6638 phba->sli4_hba.conf_regs_memmap_p + 6639 LPFC_CTL_PORT_ER1_OFFSET; 6640 phba->sli4_hba.u.if_type2.ERR2regaddr = 6641 phba->sli4_hba.conf_regs_memmap_p + 6642 LPFC_CTL_PORT_ER2_OFFSET; 6643 phba->sli4_hba.u.if_type2.CTRLregaddr = 6644 phba->sli4_hba.conf_regs_memmap_p + 6645 LPFC_CTL_PORT_CTL_OFFSET; 6646 phba->sli4_hba.u.if_type2.STATUSregaddr = 6647 phba->sli4_hba.conf_regs_memmap_p + 6648 LPFC_CTL_PORT_STA_OFFSET; 6649 phba->sli4_hba.SLIINTFregaddr = 6650 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6651 phba->sli4_hba.PSMPHRregaddr = 6652 phba->sli4_hba.conf_regs_memmap_p + 6653 LPFC_CTL_PORT_SEM_OFFSET; 6654 phba->sli4_hba.RQDBregaddr = 6655 phba->sli4_hba.conf_regs_memmap_p + 6656 LPFC_ULP0_RQ_DOORBELL; 6657 phba->sli4_hba.WQDBregaddr = 6658 phba->sli4_hba.conf_regs_memmap_p + 6659 LPFC_ULP0_WQ_DOORBELL; 6660 phba->sli4_hba.EQCQDBregaddr = 6661 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6662 phba->sli4_hba.MQDBregaddr = 6663 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6664 phba->sli4_hba.BMBXregaddr = 6665 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6666 break; 6667 case LPFC_SLI_INTF_IF_TYPE_1: 6668 default: 6669 dev_printk(KERN_ERR, &phba->pcidev->dev, 6670 "FATAL - unsupported SLI4 interface type - %d\n", 6671 if_type); 6672 break; 6673 } 6674} 6675 6676/** 6677 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6678 * @phba: pointer to lpfc hba data structure. 6679 * 6680 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6681 * memory map. 6682 **/ 6683static void 6684lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6685{ 6686 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6687 LPFC_SLIPORT_IF0_SMPHR; 6688 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6689 LPFC_HST_ISR0; 6690 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6691 LPFC_HST_IMR0; 6692 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6693 LPFC_HST_ISCR0; 6694} 6695 6696/** 6697 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6698 * @phba: pointer to lpfc hba data structure. 6699 * @vf: virtual function number 6700 * 6701 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6702 * based on the given viftual function number, @vf. 6703 * 6704 * Return 0 if successful, otherwise -ENODEV. 6705 **/ 6706static int 6707lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6708{ 6709 if (vf > LPFC_VIR_FUNC_MAX) 6710 return -ENODEV; 6711 6712 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6713 vf * LPFC_VFR_PAGE_SIZE + 6714 LPFC_ULP0_RQ_DOORBELL); 6715 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6716 vf * LPFC_VFR_PAGE_SIZE + 6717 LPFC_ULP0_WQ_DOORBELL); 6718 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6719 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6720 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6721 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6722 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6723 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6724 return 0; 6725} 6726 6727/** 6728 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6729 * @phba: pointer to lpfc hba data structure. 6730 * 6731 * This routine is invoked to create the bootstrap mailbox 6732 * region consistent with the SLI-4 interface spec. This 6733 * routine allocates all memory necessary to communicate 6734 * mailbox commands to the port and sets up all alignment 6735 * needs. No locks are expected to be held when calling 6736 * this routine. 6737 * 6738 * Return codes 6739 * 0 - successful 6740 * -ENOMEM - could not allocated memory. 6741 **/ 6742static int 6743lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6744{ 6745 uint32_t bmbx_size; 6746 struct lpfc_dmabuf *dmabuf; 6747 struct dma_address *dma_address; 6748 uint32_t pa_addr; 6749 uint64_t phys_addr; 6750 6751 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6752 if (!dmabuf) 6753 return -ENOMEM; 6754 6755 /* 6756 * The bootstrap mailbox region is comprised of 2 parts 6757 * plus an alignment restriction of 16 bytes. 6758 */ 6759 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6760 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 6761 &dmabuf->phys, GFP_KERNEL); 6762 if (!dmabuf->virt) { 6763 kfree(dmabuf); 6764 return -ENOMEM; 6765 } 6766 6767 /* 6768 * Initialize the bootstrap mailbox pointers now so that the register 6769 * operations are simple later. The mailbox dma address is required 6770 * to be 16-byte aligned. Also align the virtual memory as each 6771 * maibox is copied into the bmbx mailbox region before issuing the 6772 * command to the port. 6773 */ 6774 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6775 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6776 6777 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6778 LPFC_ALIGN_16_BYTE); 6779 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6780 LPFC_ALIGN_16_BYTE); 6781 6782 /* 6783 * Set the high and low physical addresses now. The SLI4 alignment 6784 * requirement is 16 bytes and the mailbox is posted to the port 6785 * as two 30-bit addresses. The other data is a bit marking whether 6786 * the 30-bit address is the high or low address. 6787 * Upcast bmbx aphys to 64bits so shift instruction compiles 6788 * clean on 32 bit machines. 6789 */ 6790 dma_address = &phba->sli4_hba.bmbx.dma_address; 6791 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6792 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6793 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6794 LPFC_BMBX_BIT1_ADDR_HI); 6795 6796 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6797 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6798 LPFC_BMBX_BIT1_ADDR_LO); 6799 return 0; 6800} 6801 6802/** 6803 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6804 * @phba: pointer to lpfc hba data structure. 6805 * 6806 * This routine is invoked to teardown the bootstrap mailbox 6807 * region and release all host resources. This routine requires 6808 * the caller to ensure all mailbox commands recovered, no 6809 * additional mailbox comands are sent, and interrupts are disabled 6810 * before calling this routine. 6811 * 6812 **/ 6813static void 6814lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6815{ 6816 dma_free_coherent(&phba->pcidev->dev, 6817 phba->sli4_hba.bmbx.bmbx_size, 6818 phba->sli4_hba.bmbx.dmabuf->virt, 6819 phba->sli4_hba.bmbx.dmabuf->phys); 6820 6821 kfree(phba->sli4_hba.bmbx.dmabuf); 6822 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6823} 6824 6825/** 6826 * lpfc_sli4_read_config - Get the config parameters. 6827 * @phba: pointer to lpfc hba data structure. 6828 * 6829 * This routine is invoked to read the configuration parameters from the HBA. 6830 * The configuration parameters are used to set the base and maximum values 6831 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6832 * allocation for the port. 6833 * 6834 * Return codes 6835 * 0 - successful 6836 * -ENOMEM - No available memory 6837 * -EIO - The mailbox failed to complete successfully. 6838 **/ 6839int 6840lpfc_sli4_read_config(struct lpfc_hba *phba) 6841{ 6842 LPFC_MBOXQ_t *pmb; 6843 struct lpfc_mbx_read_config *rd_config; 6844 union lpfc_sli4_cfg_shdr *shdr; 6845 uint32_t shdr_status, shdr_add_status; 6846 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6847 struct lpfc_rsrc_desc_fcfcoe *desc; 6848 char *pdesc_0; 6849 int length, i, rc = 0, rc2; 6850 6851 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6852 if (!pmb) { 6853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6854 "2011 Unable to allocate memory for issuing " 6855 "SLI_CONFIG_SPECIAL mailbox command\n"); 6856 return -ENOMEM; 6857 } 6858 6859 lpfc_read_config(phba, pmb); 6860 6861 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6862 if (rc != MBX_SUCCESS) { 6863 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6864 "2012 Mailbox failed , mbxCmd x%x " 6865 "READ_CONFIG, mbxStatus x%x\n", 6866 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6867 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6868 rc = -EIO; 6869 } else { 6870 rd_config = &pmb->u.mqe.un.rd_config; 6871 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6872 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6873 phba->sli4_hba.lnk_info.lnk_tp = 6874 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6875 phba->sli4_hba.lnk_info.lnk_no = 6876 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6877 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6878 "3081 lnk_type:%d, lnk_numb:%d\n", 6879 phba->sli4_hba.lnk_info.lnk_tp, 6880 phba->sli4_hba.lnk_info.lnk_no); 6881 } else 6882 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6883 "3082 Mailbox (x%x) returned ldv:x0\n", 6884 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6885 phba->sli4_hba.extents_in_use = 6886 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6887 phba->sli4_hba.max_cfg_param.max_xri = 6888 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6889 phba->sli4_hba.max_cfg_param.xri_base = 6890 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6891 phba->sli4_hba.max_cfg_param.max_vpi = 6892 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6893 phba->sli4_hba.max_cfg_param.vpi_base = 6894 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6895 phba->sli4_hba.max_cfg_param.max_rpi = 6896 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6897 phba->sli4_hba.max_cfg_param.rpi_base = 6898 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6899 phba->sli4_hba.max_cfg_param.max_vfi = 6900 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6901 phba->sli4_hba.max_cfg_param.vfi_base = 6902 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6903 phba->sli4_hba.max_cfg_param.max_fcfi = 6904 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6905 phba->sli4_hba.max_cfg_param.max_eq = 6906 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6907 phba->sli4_hba.max_cfg_param.max_rq = 6908 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6909 phba->sli4_hba.max_cfg_param.max_wq = 6910 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6911 phba->sli4_hba.max_cfg_param.max_cq = 6912 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6913 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6914 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6915 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6916 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6917 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6918 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6919 phba->max_vports = phba->max_vpi; 6920 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6921 "2003 cfg params Extents? %d " 6922 "XRI(B:%d M:%d), " 6923 "VPI(B:%d M:%d) " 6924 "VFI(B:%d M:%d) " 6925 "RPI(B:%d M:%d) " 6926 "FCFI(Count:%d)\n", 6927 phba->sli4_hba.extents_in_use, 6928 phba->sli4_hba.max_cfg_param.xri_base, 6929 phba->sli4_hba.max_cfg_param.max_xri, 6930 phba->sli4_hba.max_cfg_param.vpi_base, 6931 phba->sli4_hba.max_cfg_param.max_vpi, 6932 phba->sli4_hba.max_cfg_param.vfi_base, 6933 phba->sli4_hba.max_cfg_param.max_vfi, 6934 phba->sli4_hba.max_cfg_param.rpi_base, 6935 phba->sli4_hba.max_cfg_param.max_rpi, 6936 phba->sli4_hba.max_cfg_param.max_fcfi); 6937 } 6938 6939 if (rc) 6940 goto read_cfg_out; 6941 6942 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6943 length = phba->sli4_hba.max_cfg_param.max_xri - 6944 lpfc_sli4_get_els_iocb_cnt(phba); 6945 if (phba->cfg_hba_queue_depth > length) { 6946 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6947 "3361 HBA queue depth changed from %d to %d\n", 6948 phba->cfg_hba_queue_depth, length); 6949 phba->cfg_hba_queue_depth = length; 6950 } 6951 6952 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6953 LPFC_SLI_INTF_IF_TYPE_2) 6954 goto read_cfg_out; 6955 6956 /* get the pf# and vf# for SLI4 if_type 2 port */ 6957 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6958 sizeof(struct lpfc_sli4_cfg_mhdr)); 6959 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6960 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6961 length, LPFC_SLI4_MBX_EMBED); 6962 6963 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6964 shdr = (union lpfc_sli4_cfg_shdr *) 6965 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6966 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6967 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6968 if (rc2 || shdr_status || shdr_add_status) { 6969 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6970 "3026 Mailbox failed , mbxCmd x%x " 6971 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6972 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6973 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6974 goto read_cfg_out; 6975 } 6976 6977 /* search for fc_fcoe resrouce descriptor */ 6978 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6979 6980 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6981 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6982 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6983 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6984 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6985 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6986 goto read_cfg_out; 6987 6988 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6989 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6990 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6991 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6992 phba->sli4_hba.iov.pf_number = 6993 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6994 phba->sli4_hba.iov.vf_number = 6995 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6996 break; 6997 } 6998 } 6999 7000 if (i < LPFC_RSRC_DESC_MAX_NUM) 7001 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7002 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7003 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7004 phba->sli4_hba.iov.vf_number); 7005 else 7006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7007 "3028 GET_FUNCTION_CONFIG: failed to find " 7008 "Resrouce Descriptor:x%x\n", 7009 LPFC_RSRC_DESC_TYPE_FCFCOE); 7010 7011read_cfg_out: 7012 mempool_free(pmb, phba->mbox_mem_pool); 7013 return rc; 7014} 7015 7016/** 7017 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7018 * @phba: pointer to lpfc hba data structure. 7019 * 7020 * This routine is invoked to setup the port-side endian order when 7021 * the port if_type is 0. This routine has no function for other 7022 * if_types. 7023 * 7024 * Return codes 7025 * 0 - successful 7026 * -ENOMEM - No available memory 7027 * -EIO - The mailbox failed to complete successfully. 7028 **/ 7029static int 7030lpfc_setup_endian_order(struct lpfc_hba *phba) 7031{ 7032 LPFC_MBOXQ_t *mboxq; 7033 uint32_t if_type, rc = 0; 7034 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7035 HOST_ENDIAN_HIGH_WORD1}; 7036 7037 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7038 switch (if_type) { 7039 case LPFC_SLI_INTF_IF_TYPE_0: 7040 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7041 GFP_KERNEL); 7042 if (!mboxq) { 7043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7044 "0492 Unable to allocate memory for " 7045 "issuing SLI_CONFIG_SPECIAL mailbox " 7046 "command\n"); 7047 return -ENOMEM; 7048 } 7049 7050 /* 7051 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7052 * two words to contain special data values and no other data. 7053 */ 7054 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7055 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7056 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7057 if (rc != MBX_SUCCESS) { 7058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7059 "0493 SLI_CONFIG_SPECIAL mailbox " 7060 "failed with status x%x\n", 7061 rc); 7062 rc = -EIO; 7063 } 7064 mempool_free(mboxq, phba->mbox_mem_pool); 7065 break; 7066 case LPFC_SLI_INTF_IF_TYPE_2: 7067 case LPFC_SLI_INTF_IF_TYPE_1: 7068 default: 7069 break; 7070 } 7071 return rc; 7072} 7073 7074/** 7075 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 7076 * @phba: pointer to lpfc hba data structure. 7077 * 7078 * This routine is invoked to check the user settable queue counts for EQs and 7079 * CQs. after this routine is called the counts will be set to valid values that 7080 * adhere to the constraints of the system's interrupt vectors and the port's 7081 * queue resources. 7082 * 7083 * Return codes 7084 * 0 - successful 7085 * -ENOMEM - No available memory 7086 **/ 7087static int 7088lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7089{ 7090 int cfg_fcp_io_channel; 7091 uint32_t cpu; 7092 uint32_t i = 0; 7093 int fof_vectors = phba->cfg_fof ? 1 : 0; 7094 7095 /* 7096 * Sanity check for configured queue parameters against the run-time 7097 * device parameters 7098 */ 7099 7100 /* Sanity check on HBA EQ parameters */ 7101 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 7102 7103 /* It doesn't make sense to have more io channels then online CPUs */ 7104 for_each_present_cpu(cpu) { 7105 if (cpu_online(cpu)) 7106 i++; 7107 } 7108 phba->sli4_hba.num_online_cpu = i; 7109 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 7110 phba->sli4_hba.curr_disp_cpu = 0; 7111 7112 if (i < cfg_fcp_io_channel) { 7113 lpfc_printf_log(phba, 7114 KERN_ERR, LOG_INIT, 7115 "3188 Reducing IO channels to match number of " 7116 "online CPUs: from %d to %d\n", 7117 cfg_fcp_io_channel, i); 7118 cfg_fcp_io_channel = i; 7119 } 7120 7121 if (cfg_fcp_io_channel + fof_vectors > 7122 phba->sli4_hba.max_cfg_param.max_eq) { 7123 if (phba->sli4_hba.max_cfg_param.max_eq < 7124 LPFC_FCP_IO_CHAN_MIN) { 7125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7126 "2574 Not enough EQs (%d) from the " 7127 "pci function for supporting FCP " 7128 "EQs (%d)\n", 7129 phba->sli4_hba.max_cfg_param.max_eq, 7130 phba->cfg_fcp_io_channel); 7131 goto out_error; 7132 } 7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7134 "2575 Reducing IO channels to match number of " 7135 "available EQs: from %d to %d\n", 7136 cfg_fcp_io_channel, 7137 phba->sli4_hba.max_cfg_param.max_eq); 7138 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq - 7139 fof_vectors; 7140 } 7141 7142 /* The actual number of FCP event queues adopted */ 7143 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 7144 7145 /* Get EQ depth from module parameter, fake the default for now */ 7146 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7147 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7148 7149 /* Get CQ depth from module parameter, fake the default for now */ 7150 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7151 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7152 7153 return 0; 7154out_error: 7155 return -ENOMEM; 7156} 7157 7158/** 7159 * lpfc_sli4_queue_create - Create all the SLI4 queues 7160 * @phba: pointer to lpfc hba data structure. 7161 * 7162 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7163 * operation. For each SLI4 queue type, the parameters such as queue entry 7164 * count (queue depth) shall be taken from the module parameter. For now, 7165 * we just use some constant number as place holder. 7166 * 7167 * Return codes 7168 * 0 - successful 7169 * -ENOMEM - No availble memory 7170 * -EIO - The mailbox failed to complete successfully. 7171 **/ 7172int 7173lpfc_sli4_queue_create(struct lpfc_hba *phba) 7174{ 7175 struct lpfc_queue *qdesc; 7176 int idx; 7177 7178 /* 7179 * Create HBA Record arrays. 7180 */ 7181 if (!phba->cfg_fcp_io_channel) 7182 return -ERANGE; 7183 7184 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 7185 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 7186 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 7187 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 7188 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 7189 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 7190 7191 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 7192 phba->cfg_fcp_io_channel), GFP_KERNEL); 7193 if (!phba->sli4_hba.hba_eq) { 7194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7195 "2576 Failed allocate memory for " 7196 "fast-path EQ record array\n"); 7197 goto out_error; 7198 } 7199 7200 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 7201 phba->cfg_fcp_io_channel), GFP_KERNEL); 7202 if (!phba->sli4_hba.fcp_cq) { 7203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7204 "2577 Failed allocate memory for fast-path " 7205 "CQ record array\n"); 7206 goto out_error; 7207 } 7208 7209 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 7210 phba->cfg_fcp_io_channel), GFP_KERNEL); 7211 if (!phba->sli4_hba.fcp_wq) { 7212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7213 "2578 Failed allocate memory for fast-path " 7214 "WQ record array\n"); 7215 goto out_error; 7216 } 7217 7218 /* 7219 * Since the first EQ can have multiple CQs associated with it, 7220 * this array is used to quickly see if we have a FCP fast-path 7221 * CQ match. 7222 */ 7223 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 7224 phba->cfg_fcp_io_channel), GFP_KERNEL); 7225 if (!phba->sli4_hba.fcp_cq_map) { 7226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7227 "2545 Failed allocate memory for fast-path " 7228 "CQ map\n"); 7229 goto out_error; 7230 } 7231 7232 /* 7233 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 7234 * how many EQs to create. 7235 */ 7236 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7237 7238 /* Create EQs */ 7239 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 7240 phba->sli4_hba.eq_ecount); 7241 if (!qdesc) { 7242 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7243 "0497 Failed allocate EQ (%d)\n", idx); 7244 goto out_error; 7245 } 7246 phba->sli4_hba.hba_eq[idx] = qdesc; 7247 7248 /* Create Fast Path FCP CQs */ 7249 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7250 phba->sli4_hba.cq_ecount); 7251 if (!qdesc) { 7252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7253 "0499 Failed allocate fast-path FCP " 7254 "CQ (%d)\n", idx); 7255 goto out_error; 7256 } 7257 phba->sli4_hba.fcp_cq[idx] = qdesc; 7258 7259 /* Create Fast Path FCP WQs */ 7260 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7261 phba->sli4_hba.wq_ecount); 7262 if (!qdesc) { 7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7264 "0503 Failed allocate fast-path FCP " 7265 "WQ (%d)\n", idx); 7266 goto out_error; 7267 } 7268 phba->sli4_hba.fcp_wq[idx] = qdesc; 7269 } 7270 7271 7272 /* 7273 * Create Slow Path Completion Queues (CQs) 7274 */ 7275 7276 /* Create slow-path Mailbox Command Complete Queue */ 7277 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7278 phba->sli4_hba.cq_ecount); 7279 if (!qdesc) { 7280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7281 "0500 Failed allocate slow-path mailbox CQ\n"); 7282 goto out_error; 7283 } 7284 phba->sli4_hba.mbx_cq = qdesc; 7285 7286 /* Create slow-path ELS Complete Queue */ 7287 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7288 phba->sli4_hba.cq_ecount); 7289 if (!qdesc) { 7290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7291 "0501 Failed allocate slow-path ELS CQ\n"); 7292 goto out_error; 7293 } 7294 phba->sli4_hba.els_cq = qdesc; 7295 7296 7297 /* 7298 * Create Slow Path Work Queues (WQs) 7299 */ 7300 7301 /* Create Mailbox Command Queue */ 7302 7303 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 7304 phba->sli4_hba.mq_ecount); 7305 if (!qdesc) { 7306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7307 "0505 Failed allocate slow-path MQ\n"); 7308 goto out_error; 7309 } 7310 phba->sli4_hba.mbx_wq = qdesc; 7311 7312 /* 7313 * Create ELS Work Queues 7314 */ 7315 7316 /* Create slow-path ELS Work Queue */ 7317 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 7318 phba->sli4_hba.wq_ecount); 7319 if (!qdesc) { 7320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7321 "0504 Failed allocate slow-path ELS WQ\n"); 7322 goto out_error; 7323 } 7324 phba->sli4_hba.els_wq = qdesc; 7325 7326 /* 7327 * Create Receive Queue (RQ) 7328 */ 7329 7330 /* Create Receive Queue for header */ 7331 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7332 phba->sli4_hba.rq_ecount); 7333 if (!qdesc) { 7334 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7335 "0506 Failed allocate receive HRQ\n"); 7336 goto out_error; 7337 } 7338 phba->sli4_hba.hdr_rq = qdesc; 7339 7340 /* Create Receive Queue for data */ 7341 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 7342 phba->sli4_hba.rq_ecount); 7343 if (!qdesc) { 7344 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7345 "0507 Failed allocate receive DRQ\n"); 7346 goto out_error; 7347 } 7348 phba->sli4_hba.dat_rq = qdesc; 7349 7350 /* Create the Queues needed for Flash Optimized Fabric operations */ 7351 if (phba->cfg_fof) 7352 lpfc_fof_queue_create(phba); 7353 return 0; 7354 7355out_error: 7356 lpfc_sli4_queue_destroy(phba); 7357 return -ENOMEM; 7358} 7359 7360/** 7361 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 7362 * @phba: pointer to lpfc hba data structure. 7363 * 7364 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 7365 * operation. 7366 * 7367 * Return codes 7368 * 0 - successful 7369 * -ENOMEM - No available memory 7370 * -EIO - The mailbox failed to complete successfully. 7371 **/ 7372void 7373lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 7374{ 7375 int idx; 7376 7377 if (phba->cfg_fof) 7378 lpfc_fof_queue_destroy(phba); 7379 7380 if (phba->sli4_hba.hba_eq != NULL) { 7381 /* Release HBA event queue */ 7382 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7383 if (phba->sli4_hba.hba_eq[idx] != NULL) { 7384 lpfc_sli4_queue_free( 7385 phba->sli4_hba.hba_eq[idx]); 7386 phba->sli4_hba.hba_eq[idx] = NULL; 7387 } 7388 } 7389 kfree(phba->sli4_hba.hba_eq); 7390 phba->sli4_hba.hba_eq = NULL; 7391 } 7392 7393 if (phba->sli4_hba.fcp_cq != NULL) { 7394 /* Release FCP completion queue */ 7395 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7396 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 7397 lpfc_sli4_queue_free( 7398 phba->sli4_hba.fcp_cq[idx]); 7399 phba->sli4_hba.fcp_cq[idx] = NULL; 7400 } 7401 } 7402 kfree(phba->sli4_hba.fcp_cq); 7403 phba->sli4_hba.fcp_cq = NULL; 7404 } 7405 7406 if (phba->sli4_hba.fcp_wq != NULL) { 7407 /* Release FCP work queue */ 7408 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 7409 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 7410 lpfc_sli4_queue_free( 7411 phba->sli4_hba.fcp_wq[idx]); 7412 phba->sli4_hba.fcp_wq[idx] = NULL; 7413 } 7414 } 7415 kfree(phba->sli4_hba.fcp_wq); 7416 phba->sli4_hba.fcp_wq = NULL; 7417 } 7418 7419 /* Release FCP CQ mapping array */ 7420 if (phba->sli4_hba.fcp_cq_map != NULL) { 7421 kfree(phba->sli4_hba.fcp_cq_map); 7422 phba->sli4_hba.fcp_cq_map = NULL; 7423 } 7424 7425 /* Release mailbox command work queue */ 7426 if (phba->sli4_hba.mbx_wq != NULL) { 7427 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 7428 phba->sli4_hba.mbx_wq = NULL; 7429 } 7430 7431 /* Release ELS work queue */ 7432 if (phba->sli4_hba.els_wq != NULL) { 7433 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7434 phba->sli4_hba.els_wq = NULL; 7435 } 7436 7437 /* Release unsolicited receive queue */ 7438 if (phba->sli4_hba.hdr_rq != NULL) { 7439 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7440 phba->sli4_hba.hdr_rq = NULL; 7441 } 7442 if (phba->sli4_hba.dat_rq != NULL) { 7443 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7444 phba->sli4_hba.dat_rq = NULL; 7445 } 7446 7447 /* Release ELS complete queue */ 7448 if (phba->sli4_hba.els_cq != NULL) { 7449 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7450 phba->sli4_hba.els_cq = NULL; 7451 } 7452 7453 /* Release mailbox command complete queue */ 7454 if (phba->sli4_hba.mbx_cq != NULL) { 7455 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7456 phba->sli4_hba.mbx_cq = NULL; 7457 } 7458 7459 return; 7460} 7461 7462/** 7463 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7464 * @phba: pointer to lpfc hba data structure. 7465 * 7466 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7467 * operation. 7468 * 7469 * Return codes 7470 * 0 - successful 7471 * -ENOMEM - No available memory 7472 * -EIO - The mailbox failed to complete successfully. 7473 **/ 7474int 7475lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7476{ 7477 struct lpfc_sli *psli = &phba->sli; 7478 struct lpfc_sli_ring *pring; 7479 int rc = -ENOMEM; 7480 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7481 int fcp_cq_index = 0; 7482 uint32_t shdr_status, shdr_add_status; 7483 union lpfc_sli4_cfg_shdr *shdr; 7484 LPFC_MBOXQ_t *mboxq; 7485 uint32_t length; 7486 7487 /* Check for dual-ULP support */ 7488 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7489 if (!mboxq) { 7490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7491 "3249 Unable to allocate memory for " 7492 "QUERY_FW_CFG mailbox command\n"); 7493 return -ENOMEM; 7494 } 7495 length = (sizeof(struct lpfc_mbx_query_fw_config) - 7496 sizeof(struct lpfc_sli4_cfg_mhdr)); 7497 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7498 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 7499 length, LPFC_SLI4_MBX_EMBED); 7500 7501 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7502 7503 shdr = (union lpfc_sli4_cfg_shdr *) 7504 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7505 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7506 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7507 if (shdr_status || shdr_add_status || rc) { 7508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7509 "3250 QUERY_FW_CFG mailbox failed with status " 7510 "x%x add_status x%x, mbx status x%x\n", 7511 shdr_status, shdr_add_status, rc); 7512 if (rc != MBX_TIMEOUT) 7513 mempool_free(mboxq, phba->mbox_mem_pool); 7514 rc = -ENXIO; 7515 goto out_error; 7516 } 7517 7518 phba->sli4_hba.fw_func_mode = 7519 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 7520 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 7521 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 7522 phba->sli4_hba.physical_port = 7523 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 7524 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7525 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 7526 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 7527 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 7528 7529 if (rc != MBX_TIMEOUT) 7530 mempool_free(mboxq, phba->mbox_mem_pool); 7531 7532 /* 7533 * Set up HBA Event Queues (EQs) 7534 */ 7535 7536 /* Set up HBA event queue */ 7537 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7539 "3147 Fast-path EQs not allocated\n"); 7540 rc = -ENOMEM; 7541 goto out_error; 7542 } 7543 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7544 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7546 "0522 Fast-path EQ (%d) not " 7547 "allocated\n", fcp_eqidx); 7548 rc = -ENOMEM; 7549 goto out_destroy_hba_eq; 7550 } 7551 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7552 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7553 if (rc) { 7554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7555 "0523 Failed setup of fast-path EQ " 7556 "(%d), rc = 0x%x\n", fcp_eqidx, 7557 (uint32_t)rc); 7558 goto out_destroy_hba_eq; 7559 } 7560 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7561 "2584 HBA EQ setup: " 7562 "queue[%d]-id=%d\n", fcp_eqidx, 7563 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7564 } 7565 7566 /* Set up fast-path FCP Response Complete Queue */ 7567 if (!phba->sli4_hba.fcp_cq) { 7568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7569 "3148 Fast-path FCP CQ array not " 7570 "allocated\n"); 7571 rc = -ENOMEM; 7572 goto out_destroy_hba_eq; 7573 } 7574 7575 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7576 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7578 "0526 Fast-path FCP CQ (%d) not " 7579 "allocated\n", fcp_cqidx); 7580 rc = -ENOMEM; 7581 goto out_destroy_fcp_cq; 7582 } 7583 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7584 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7585 if (rc) { 7586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7587 "0527 Failed setup of fast-path FCP " 7588 "CQ (%d), rc = 0x%x\n", fcp_cqidx, 7589 (uint32_t)rc); 7590 goto out_destroy_fcp_cq; 7591 } 7592 7593 /* Setup fcp_cq_map for fast lookup */ 7594 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7595 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7596 7597 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7598 "2588 FCP CQ setup: cq[%d]-id=%d, " 7599 "parent seq[%d]-id=%d\n", 7600 fcp_cqidx, 7601 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7602 fcp_cqidx, 7603 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7604 } 7605 7606 /* Set up fast-path FCP Work Queue */ 7607 if (!phba->sli4_hba.fcp_wq) { 7608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7609 "3149 Fast-path FCP WQ array not " 7610 "allocated\n"); 7611 rc = -ENOMEM; 7612 goto out_destroy_fcp_cq; 7613 } 7614 7615 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7616 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7618 "0534 Fast-path FCP WQ (%d) not " 7619 "allocated\n", fcp_wqidx); 7620 rc = -ENOMEM; 7621 goto out_destroy_fcp_wq; 7622 } 7623 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7624 phba->sli4_hba.fcp_cq[fcp_wqidx], 7625 LPFC_FCP); 7626 if (rc) { 7627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7628 "0535 Failed setup of fast-path FCP " 7629 "WQ (%d), rc = 0x%x\n", fcp_wqidx, 7630 (uint32_t)rc); 7631 goto out_destroy_fcp_wq; 7632 } 7633 7634 /* Bind this WQ to the next FCP ring */ 7635 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7636 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7637 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7638 7639 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7640 "2591 FCP WQ setup: wq[%d]-id=%d, " 7641 "parent cq[%d]-id=%d\n", 7642 fcp_wqidx, 7643 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7644 fcp_cq_index, 7645 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7646 } 7647 /* 7648 * Set up Complete Queues (CQs) 7649 */ 7650 7651 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7652 if (!phba->sli4_hba.mbx_cq) { 7653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7654 "0528 Mailbox CQ not allocated\n"); 7655 rc = -ENOMEM; 7656 goto out_destroy_fcp_wq; 7657 } 7658 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7659 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7660 if (rc) { 7661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7662 "0529 Failed setup of slow-path mailbox CQ: " 7663 "rc = 0x%x\n", (uint32_t)rc); 7664 goto out_destroy_fcp_wq; 7665 } 7666 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7667 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7668 phba->sli4_hba.mbx_cq->queue_id, 7669 phba->sli4_hba.hba_eq[0]->queue_id); 7670 7671 /* Set up slow-path ELS Complete Queue */ 7672 if (!phba->sli4_hba.els_cq) { 7673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7674 "0530 ELS CQ not allocated\n"); 7675 rc = -ENOMEM; 7676 goto out_destroy_mbx_cq; 7677 } 7678 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7679 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7680 if (rc) { 7681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7682 "0531 Failed setup of slow-path ELS CQ: " 7683 "rc = 0x%x\n", (uint32_t)rc); 7684 goto out_destroy_mbx_cq; 7685 } 7686 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7687 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7688 phba->sli4_hba.els_cq->queue_id, 7689 phba->sli4_hba.hba_eq[0]->queue_id); 7690 7691 /* 7692 * Set up all the Work Queues (WQs) 7693 */ 7694 7695 /* Set up Mailbox Command Queue */ 7696 if (!phba->sli4_hba.mbx_wq) { 7697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7698 "0538 Slow-path MQ not allocated\n"); 7699 rc = -ENOMEM; 7700 goto out_destroy_els_cq; 7701 } 7702 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7703 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7704 if (rc) { 7705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7706 "0539 Failed setup of slow-path MQ: " 7707 "rc = 0x%x\n", rc); 7708 goto out_destroy_els_cq; 7709 } 7710 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7711 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7712 phba->sli4_hba.mbx_wq->queue_id, 7713 phba->sli4_hba.mbx_cq->queue_id); 7714 7715 /* Set up slow-path ELS Work Queue */ 7716 if (!phba->sli4_hba.els_wq) { 7717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7718 "0536 Slow-path ELS WQ not allocated\n"); 7719 rc = -ENOMEM; 7720 goto out_destroy_mbx_wq; 7721 } 7722 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7723 phba->sli4_hba.els_cq, LPFC_ELS); 7724 if (rc) { 7725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7726 "0537 Failed setup of slow-path ELS WQ: " 7727 "rc = 0x%x\n", (uint32_t)rc); 7728 goto out_destroy_mbx_wq; 7729 } 7730 7731 /* Bind this WQ to the ELS ring */ 7732 pring = &psli->ring[LPFC_ELS_RING]; 7733 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7734 phba->sli4_hba.els_cq->pring = pring; 7735 7736 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7737 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7738 phba->sli4_hba.els_wq->queue_id, 7739 phba->sli4_hba.els_cq->queue_id); 7740 7741 /* 7742 * Create Receive Queue (RQ) 7743 */ 7744 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7746 "0540 Receive Queue not allocated\n"); 7747 rc = -ENOMEM; 7748 goto out_destroy_els_wq; 7749 } 7750 7751 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7752 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7753 7754 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7755 phba->sli4_hba.els_cq, LPFC_USOL); 7756 if (rc) { 7757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7758 "0541 Failed setup of Receive Queue: " 7759 "rc = 0x%x\n", (uint32_t)rc); 7760 goto out_destroy_fcp_wq; 7761 } 7762 7763 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7764 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7765 "parent cq-id=%d\n", 7766 phba->sli4_hba.hdr_rq->queue_id, 7767 phba->sli4_hba.dat_rq->queue_id, 7768 phba->sli4_hba.els_cq->queue_id); 7769 7770 if (phba->cfg_fof) { 7771 rc = lpfc_fof_queue_setup(phba); 7772 if (rc) { 7773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7774 "0549 Failed setup of FOF Queues: " 7775 "rc = 0x%x\n", rc); 7776 goto out_destroy_els_rq; 7777 } 7778 } 7779 7780 /* 7781 * Configure EQ delay multipier for interrupt coalescing using 7782 * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time. 7783 */ 7784 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; 7785 fcp_eqidx += LPFC_MAX_EQ_DELAY) 7786 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx); 7787 return 0; 7788 7789out_destroy_els_rq: 7790 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7791out_destroy_els_wq: 7792 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7793out_destroy_mbx_wq: 7794 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7795out_destroy_els_cq: 7796 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7797out_destroy_mbx_cq: 7798 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7799out_destroy_fcp_wq: 7800 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7801 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7802out_destroy_fcp_cq: 7803 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7804 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7805out_destroy_hba_eq: 7806 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7807 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7808out_error: 7809 return rc; 7810} 7811 7812/** 7813 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7814 * @phba: pointer to lpfc hba data structure. 7815 * 7816 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7817 * operation. 7818 * 7819 * Return codes 7820 * 0 - successful 7821 * -ENOMEM - No available memory 7822 * -EIO - The mailbox failed to complete successfully. 7823 **/ 7824void 7825lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7826{ 7827 int fcp_qidx; 7828 7829 /* Unset the queues created for Flash Optimized Fabric operations */ 7830 if (phba->cfg_fof) 7831 lpfc_fof_queue_destroy(phba); 7832 /* Unset mailbox command work queue */ 7833 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7834 /* Unset ELS work queue */ 7835 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7836 /* Unset unsolicited receive queue */ 7837 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7838 /* Unset FCP work queue */ 7839 if (phba->sli4_hba.fcp_wq) { 7840 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7841 fcp_qidx++) 7842 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7843 } 7844 /* Unset mailbox command complete queue */ 7845 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7846 /* Unset ELS complete queue */ 7847 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7848 /* Unset FCP response complete queue */ 7849 if (phba->sli4_hba.fcp_cq) { 7850 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7851 fcp_qidx++) 7852 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7853 } 7854 /* Unset fast-path event queue */ 7855 if (phba->sli4_hba.hba_eq) { 7856 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7857 fcp_qidx++) 7858 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7859 } 7860} 7861 7862/** 7863 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7864 * @phba: pointer to lpfc hba data structure. 7865 * 7866 * This routine is invoked to allocate and set up a pool of completion queue 7867 * events. The body of the completion queue event is a completion queue entry 7868 * CQE. For now, this pool is used for the interrupt service routine to queue 7869 * the following HBA completion queue events for the worker thread to process: 7870 * - Mailbox asynchronous events 7871 * - Receive queue completion unsolicited events 7872 * Later, this can be used for all the slow-path events. 7873 * 7874 * Return codes 7875 * 0 - successful 7876 * -ENOMEM - No available memory 7877 **/ 7878static int 7879lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7880{ 7881 struct lpfc_cq_event *cq_event; 7882 int i; 7883 7884 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7885 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7886 if (!cq_event) 7887 goto out_pool_create_fail; 7888 list_add_tail(&cq_event->list, 7889 &phba->sli4_hba.sp_cqe_event_pool); 7890 } 7891 return 0; 7892 7893out_pool_create_fail: 7894 lpfc_sli4_cq_event_pool_destroy(phba); 7895 return -ENOMEM; 7896} 7897 7898/** 7899 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7900 * @phba: pointer to lpfc hba data structure. 7901 * 7902 * This routine is invoked to free the pool of completion queue events at 7903 * driver unload time. Note that, it is the responsibility of the driver 7904 * cleanup routine to free all the outstanding completion-queue events 7905 * allocated from this pool back into the pool before invoking this routine 7906 * to destroy the pool. 7907 **/ 7908static void 7909lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7910{ 7911 struct lpfc_cq_event *cq_event, *next_cq_event; 7912 7913 list_for_each_entry_safe(cq_event, next_cq_event, 7914 &phba->sli4_hba.sp_cqe_event_pool, list) { 7915 list_del(&cq_event->list); 7916 kfree(cq_event); 7917 } 7918} 7919 7920/** 7921 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7922 * @phba: pointer to lpfc hba data structure. 7923 * 7924 * This routine is the lock free version of the API invoked to allocate a 7925 * completion-queue event from the free pool. 7926 * 7927 * Return: Pointer to the newly allocated completion-queue event if successful 7928 * NULL otherwise. 7929 **/ 7930struct lpfc_cq_event * 7931__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7932{ 7933 struct lpfc_cq_event *cq_event = NULL; 7934 7935 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7936 struct lpfc_cq_event, list); 7937 return cq_event; 7938} 7939 7940/** 7941 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7942 * @phba: pointer to lpfc hba data structure. 7943 * 7944 * This routine is the lock version of the API invoked to allocate a 7945 * completion-queue event from the free pool. 7946 * 7947 * Return: Pointer to the newly allocated completion-queue event if successful 7948 * NULL otherwise. 7949 **/ 7950struct lpfc_cq_event * 7951lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7952{ 7953 struct lpfc_cq_event *cq_event; 7954 unsigned long iflags; 7955 7956 spin_lock_irqsave(&phba->hbalock, iflags); 7957 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7958 spin_unlock_irqrestore(&phba->hbalock, iflags); 7959 return cq_event; 7960} 7961 7962/** 7963 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7964 * @phba: pointer to lpfc hba data structure. 7965 * @cq_event: pointer to the completion queue event to be freed. 7966 * 7967 * This routine is the lock free version of the API invoked to release a 7968 * completion-queue event back into the free pool. 7969 **/ 7970void 7971__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7972 struct lpfc_cq_event *cq_event) 7973{ 7974 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7975} 7976 7977/** 7978 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7979 * @phba: pointer to lpfc hba data structure. 7980 * @cq_event: pointer to the completion queue event to be freed. 7981 * 7982 * This routine is the lock version of the API invoked to release a 7983 * completion-queue event back into the free pool. 7984 **/ 7985void 7986lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7987 struct lpfc_cq_event *cq_event) 7988{ 7989 unsigned long iflags; 7990 spin_lock_irqsave(&phba->hbalock, iflags); 7991 __lpfc_sli4_cq_event_release(phba, cq_event); 7992 spin_unlock_irqrestore(&phba->hbalock, iflags); 7993} 7994 7995/** 7996 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7997 * @phba: pointer to lpfc hba data structure. 7998 * 7999 * This routine is to free all the pending completion-queue events to the 8000 * back into the free pool for device reset. 8001 **/ 8002static void 8003lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 8004{ 8005 LIST_HEAD(cqelist); 8006 struct lpfc_cq_event *cqe; 8007 unsigned long iflags; 8008 8009 /* Retrieve all the pending WCQEs from pending WCQE lists */ 8010 spin_lock_irqsave(&phba->hbalock, iflags); 8011 /* Pending FCP XRI abort events */ 8012 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 8013 &cqelist); 8014 /* Pending ELS XRI abort events */ 8015 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 8016 &cqelist); 8017 /* Pending asynnc events */ 8018 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 8019 &cqelist); 8020 spin_unlock_irqrestore(&phba->hbalock, iflags); 8021 8022 while (!list_empty(&cqelist)) { 8023 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 8024 lpfc_sli4_cq_event_release(phba, cqe); 8025 } 8026} 8027 8028/** 8029 * lpfc_pci_function_reset - Reset pci function. 8030 * @phba: pointer to lpfc hba data structure. 8031 * 8032 * This routine is invoked to request a PCI function reset. It will destroys 8033 * all resources assigned to the PCI function which originates this request. 8034 * 8035 * Return codes 8036 * 0 - successful 8037 * -ENOMEM - No available memory 8038 * -EIO - The mailbox failed to complete successfully. 8039 **/ 8040int 8041lpfc_pci_function_reset(struct lpfc_hba *phba) 8042{ 8043 LPFC_MBOXQ_t *mboxq; 8044 uint32_t rc = 0, if_type; 8045 uint32_t shdr_status, shdr_add_status; 8046 uint32_t rdy_chk; 8047 uint32_t port_reset = 0; 8048 union lpfc_sli4_cfg_shdr *shdr; 8049 struct lpfc_register reg_data; 8050 uint16_t devid; 8051 8052 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8053 switch (if_type) { 8054 case LPFC_SLI_INTF_IF_TYPE_0: 8055 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 8056 GFP_KERNEL); 8057 if (!mboxq) { 8058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8059 "0494 Unable to allocate memory for " 8060 "issuing SLI_FUNCTION_RESET mailbox " 8061 "command\n"); 8062 return -ENOMEM; 8063 } 8064 8065 /* Setup PCI function reset mailbox-ioctl command */ 8066 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8067 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 8068 LPFC_SLI4_MBX_EMBED); 8069 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8070 shdr = (union lpfc_sli4_cfg_shdr *) 8071 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8072 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8073 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 8074 &shdr->response); 8075 if (rc != MBX_TIMEOUT) 8076 mempool_free(mboxq, phba->mbox_mem_pool); 8077 if (shdr_status || shdr_add_status || rc) { 8078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8079 "0495 SLI_FUNCTION_RESET mailbox " 8080 "failed with status x%x add_status x%x," 8081 " mbx status x%x\n", 8082 shdr_status, shdr_add_status, rc); 8083 rc = -ENXIO; 8084 } 8085 break; 8086 case LPFC_SLI_INTF_IF_TYPE_2: 8087wait: 8088 /* 8089 * Poll the Port Status Register and wait for RDY for 8090 * up to 30 seconds. If the port doesn't respond, treat 8091 * it as an error. 8092 */ 8093 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 8094 if (lpfc_readl(phba->sli4_hba.u.if_type2. 8095 STATUSregaddr, ®_data.word0)) { 8096 rc = -ENODEV; 8097 goto out; 8098 } 8099 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 8100 break; 8101 msleep(20); 8102 } 8103 8104 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 8105 phba->work_status[0] = readl( 8106 phba->sli4_hba.u.if_type2.ERR1regaddr); 8107 phba->work_status[1] = readl( 8108 phba->sli4_hba.u.if_type2.ERR2regaddr); 8109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8110 "2890 Port not ready, port status reg " 8111 "0x%x error 1=0x%x, error 2=0x%x\n", 8112 reg_data.word0, 8113 phba->work_status[0], 8114 phba->work_status[1]); 8115 rc = -ENODEV; 8116 goto out; 8117 } 8118 8119 if (!port_reset) { 8120 /* 8121 * Reset the port now 8122 */ 8123 reg_data.word0 = 0; 8124 bf_set(lpfc_sliport_ctrl_end, ®_data, 8125 LPFC_SLIPORT_LITTLE_ENDIAN); 8126 bf_set(lpfc_sliport_ctrl_ip, ®_data, 8127 LPFC_SLIPORT_INIT_PORT); 8128 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 8129 CTRLregaddr); 8130 /* flush */ 8131 pci_read_config_word(phba->pcidev, 8132 PCI_DEVICE_ID, &devid); 8133 8134 port_reset = 1; 8135 msleep(20); 8136 goto wait; 8137 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 8138 rc = -ENODEV; 8139 goto out; 8140 } 8141 break; 8142 8143 case LPFC_SLI_INTF_IF_TYPE_1: 8144 default: 8145 break; 8146 } 8147 8148out: 8149 /* Catch the not-ready port failure after a port reset. */ 8150 if (rc) { 8151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8152 "3317 HBA not functional: IP Reset Failed " 8153 "try: echo fw_reset > board_mode\n"); 8154 rc = -ENODEV; 8155 } 8156 8157 return rc; 8158} 8159 8160/** 8161 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 8162 * @phba: pointer to lpfc hba data structure. 8163 * 8164 * This routine is invoked to set up the PCI device memory space for device 8165 * with SLI-4 interface spec. 8166 * 8167 * Return codes 8168 * 0 - successful 8169 * other values - error 8170 **/ 8171static int 8172lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 8173{ 8174 struct pci_dev *pdev; 8175 unsigned long bar0map_len, bar1map_len, bar2map_len; 8176 int error = -ENODEV; 8177 uint32_t if_type; 8178 8179 /* Obtain PCI device reference */ 8180 if (!phba->pcidev) 8181 return error; 8182 else 8183 pdev = phba->pcidev; 8184 8185 /* Set the device DMA mask size */ 8186 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 8187 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 8188 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 8189 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 8190 return error; 8191 } 8192 } 8193 8194 /* 8195 * The BARs and register set definitions and offset locations are 8196 * dependent on the if_type. 8197 */ 8198 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 8199 &phba->sli4_hba.sli_intf.word0)) { 8200 return error; 8201 } 8202 8203 /* There is no SLI3 failback for SLI4 devices. */ 8204 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 8205 LPFC_SLI_INTF_VALID) { 8206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8207 "2894 SLI_INTF reg contents invalid " 8208 "sli_intf reg 0x%x\n", 8209 phba->sli4_hba.sli_intf.word0); 8210 return error; 8211 } 8212 8213 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8214 /* 8215 * Get the bus address of SLI4 device Bar regions and the 8216 * number of bytes required by each mapping. The mapping of the 8217 * particular PCI BARs regions is dependent on the type of 8218 * SLI4 device. 8219 */ 8220 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 8221 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 8222 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 8223 8224 /* 8225 * Map SLI4 PCI Config Space Register base to a kernel virtual 8226 * addr 8227 */ 8228 phba->sli4_hba.conf_regs_memmap_p = 8229 ioremap(phba->pci_bar0_map, bar0map_len); 8230 if (!phba->sli4_hba.conf_regs_memmap_p) { 8231 dev_printk(KERN_ERR, &pdev->dev, 8232 "ioremap failed for SLI4 PCI config " 8233 "registers.\n"); 8234 goto out; 8235 } 8236 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 8237 /* Set up BAR0 PCI config space register memory map */ 8238 lpfc_sli4_bar0_register_memmap(phba, if_type); 8239 } else { 8240 phba->pci_bar0_map = pci_resource_start(pdev, 1); 8241 bar0map_len = pci_resource_len(pdev, 1); 8242 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 8243 dev_printk(KERN_ERR, &pdev->dev, 8244 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 8245 goto out; 8246 } 8247 phba->sli4_hba.conf_regs_memmap_p = 8248 ioremap(phba->pci_bar0_map, bar0map_len); 8249 if (!phba->sli4_hba.conf_regs_memmap_p) { 8250 dev_printk(KERN_ERR, &pdev->dev, 8251 "ioremap failed for SLI4 PCI config " 8252 "registers.\n"); 8253 goto out; 8254 } 8255 lpfc_sli4_bar0_register_memmap(phba, if_type); 8256 } 8257 8258 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 8259 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 8260 /* 8261 * Map SLI4 if type 0 HBA Control Register base to a kernel 8262 * virtual address and setup the registers. 8263 */ 8264 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 8265 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 8266 phba->sli4_hba.ctrl_regs_memmap_p = 8267 ioremap(phba->pci_bar1_map, bar1map_len); 8268 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 8269 dev_printk(KERN_ERR, &pdev->dev, 8270 "ioremap failed for SLI4 HBA control registers.\n"); 8271 goto out_iounmap_conf; 8272 } 8273 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 8274 lpfc_sli4_bar1_register_memmap(phba); 8275 } 8276 8277 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 8278 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 8279 /* 8280 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 8281 * virtual address and setup the registers. 8282 */ 8283 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 8284 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 8285 phba->sli4_hba.drbl_regs_memmap_p = 8286 ioremap(phba->pci_bar2_map, bar2map_len); 8287 if (!phba->sli4_hba.drbl_regs_memmap_p) { 8288 dev_printk(KERN_ERR, &pdev->dev, 8289 "ioremap failed for SLI4 HBA doorbell registers.\n"); 8290 goto out_iounmap_ctrl; 8291 } 8292 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 8293 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 8294 if (error) 8295 goto out_iounmap_all; 8296 } 8297 8298 return 0; 8299 8300out_iounmap_all: 8301 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8302out_iounmap_ctrl: 8303 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8304out_iounmap_conf: 8305 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8306out: 8307 return error; 8308} 8309 8310/** 8311 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 8312 * @phba: pointer to lpfc hba data structure. 8313 * 8314 * This routine is invoked to unset the PCI device memory space for device 8315 * with SLI-4 interface spec. 8316 **/ 8317static void 8318lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 8319{ 8320 uint32_t if_type; 8321 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 8322 8323 switch (if_type) { 8324 case LPFC_SLI_INTF_IF_TYPE_0: 8325 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 8326 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 8327 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8328 break; 8329 case LPFC_SLI_INTF_IF_TYPE_2: 8330 iounmap(phba->sli4_hba.conf_regs_memmap_p); 8331 break; 8332 case LPFC_SLI_INTF_IF_TYPE_1: 8333 default: 8334 dev_printk(KERN_ERR, &phba->pcidev->dev, 8335 "FATAL - unsupported SLI4 interface type - %d\n", 8336 if_type); 8337 break; 8338 } 8339} 8340 8341/** 8342 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 8343 * @phba: pointer to lpfc hba data structure. 8344 * 8345 * This routine is invoked to enable the MSI-X interrupt vectors to device 8346 * with SLI-3 interface specs. The kernel function pci_enable_msix_exact() 8347 * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(), 8348 * once invoked, enables either all or nothing, depending on the current 8349 * availability of PCI vector resources. The device driver is responsible 8350 * for calling the individual request_irq() to register each MSI-X vector 8351 * with a interrupt handler, which is done in this function. Note that 8352 * later when device is unloading, the driver should always call free_irq() 8353 * on all MSI-X vectors it has done request_irq() on before calling 8354 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8355 * will be left with MSI-X enabled and leaks its vectors. 8356 * 8357 * Return codes 8358 * 0 - successful 8359 * other values - error 8360 **/ 8361static int 8362lpfc_sli_enable_msix(struct lpfc_hba *phba) 8363{ 8364 int rc, i; 8365 LPFC_MBOXQ_t *pmb; 8366 8367 /* Set up MSI-X multi-message vectors */ 8368 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8369 phba->msix_entries[i].entry = i; 8370 8371 /* Configure MSI-X capability structure */ 8372 rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries, 8373 LPFC_MSIX_VECTORS); 8374 if (rc) { 8375 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8376 "0420 PCI enable MSI-X failed (%d)\n", rc); 8377 goto vec_fail_out; 8378 } 8379 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8381 "0477 MSI-X entry[%d]: vector=x%x " 8382 "message=%d\n", i, 8383 phba->msix_entries[i].vector, 8384 phba->msix_entries[i].entry); 8385 /* 8386 * Assign MSI-X vectors to interrupt handlers 8387 */ 8388 8389 /* vector-0 is associated to slow-path handler */ 8390 rc = request_irq(phba->msix_entries[0].vector, 8391 &lpfc_sli_sp_intr_handler, 0, 8392 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8393 if (rc) { 8394 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8395 "0421 MSI-X slow-path request_irq failed " 8396 "(%d)\n", rc); 8397 goto msi_fail_out; 8398 } 8399 8400 /* vector-1 is associated to fast-path handler */ 8401 rc = request_irq(phba->msix_entries[1].vector, 8402 &lpfc_sli_fp_intr_handler, 0, 8403 LPFC_FP_DRIVER_HANDLER_NAME, phba); 8404 8405 if (rc) { 8406 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8407 "0429 MSI-X fast-path request_irq failed " 8408 "(%d)\n", rc); 8409 goto irq_fail_out; 8410 } 8411 8412 /* 8413 * Configure HBA MSI-X attention conditions to messages 8414 */ 8415 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8416 8417 if (!pmb) { 8418 rc = -ENOMEM; 8419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8420 "0474 Unable to allocate memory for issuing " 8421 "MBOX_CONFIG_MSI command\n"); 8422 goto mem_fail_out; 8423 } 8424 rc = lpfc_config_msi(phba, pmb); 8425 if (rc) 8426 goto mbx_fail_out; 8427 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8428 if (rc != MBX_SUCCESS) { 8429 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8430 "0351 Config MSI mailbox command failed, " 8431 "mbxCmd x%x, mbxStatus x%x\n", 8432 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8433 goto mbx_fail_out; 8434 } 8435 8436 /* Free memory allocated for mailbox command */ 8437 mempool_free(pmb, phba->mbox_mem_pool); 8438 return rc; 8439 8440mbx_fail_out: 8441 /* Free memory allocated for mailbox command */ 8442 mempool_free(pmb, phba->mbox_mem_pool); 8443 8444mem_fail_out: 8445 /* free the irq already requested */ 8446 free_irq(phba->msix_entries[1].vector, phba); 8447 8448irq_fail_out: 8449 /* free the irq already requested */ 8450 free_irq(phba->msix_entries[0].vector, phba); 8451 8452msi_fail_out: 8453 /* Unconfigure MSI-X capability structure */ 8454 pci_disable_msix(phba->pcidev); 8455 8456vec_fail_out: 8457 return rc; 8458} 8459 8460/** 8461 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8462 * @phba: pointer to lpfc hba data structure. 8463 * 8464 * This routine is invoked to release the MSI-X vectors and then disable the 8465 * MSI-X interrupt mode to device with SLI-3 interface spec. 8466 **/ 8467static void 8468lpfc_sli_disable_msix(struct lpfc_hba *phba) 8469{ 8470 int i; 8471 8472 /* Free up MSI-X multi-message vectors */ 8473 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8474 free_irq(phba->msix_entries[i].vector, phba); 8475 /* Disable MSI-X */ 8476 pci_disable_msix(phba->pcidev); 8477 8478 return; 8479} 8480 8481/** 8482 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8483 * @phba: pointer to lpfc hba data structure. 8484 * 8485 * This routine is invoked to enable the MSI interrupt mode to device with 8486 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8487 * enable the MSI vector. The device driver is responsible for calling the 8488 * request_irq() to register MSI vector with a interrupt the handler, which 8489 * is done in this function. 8490 * 8491 * Return codes 8492 * 0 - successful 8493 * other values - error 8494 */ 8495static int 8496lpfc_sli_enable_msi(struct lpfc_hba *phba) 8497{ 8498 int rc; 8499 8500 rc = pci_enable_msi(phba->pcidev); 8501 if (!rc) 8502 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8503 "0462 PCI enable MSI mode success.\n"); 8504 else { 8505 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8506 "0471 PCI enable MSI mode failed (%d)\n", rc); 8507 return rc; 8508 } 8509 8510 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8511 0, LPFC_DRIVER_NAME, phba); 8512 if (rc) { 8513 pci_disable_msi(phba->pcidev); 8514 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8515 "0478 MSI request_irq failed (%d)\n", rc); 8516 } 8517 return rc; 8518} 8519 8520/** 8521 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8522 * @phba: pointer to lpfc hba data structure. 8523 * 8524 * This routine is invoked to disable the MSI interrupt mode to device with 8525 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8526 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8527 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8528 * its vector. 8529 */ 8530static void 8531lpfc_sli_disable_msi(struct lpfc_hba *phba) 8532{ 8533 free_irq(phba->pcidev->irq, phba); 8534 pci_disable_msi(phba->pcidev); 8535 return; 8536} 8537 8538/** 8539 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8540 * @phba: pointer to lpfc hba data structure. 8541 * 8542 * This routine is invoked to enable device interrupt and associate driver's 8543 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8544 * spec. Depends on the interrupt mode configured to the driver, the driver 8545 * will try to fallback from the configured interrupt mode to an interrupt 8546 * mode which is supported by the platform, kernel, and device in the order 8547 * of: 8548 * MSI-X -> MSI -> IRQ. 8549 * 8550 * Return codes 8551 * 0 - successful 8552 * other values - error 8553 **/ 8554static uint32_t 8555lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8556{ 8557 uint32_t intr_mode = LPFC_INTR_ERROR; 8558 int retval; 8559 8560 if (cfg_mode == 2) { 8561 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8562 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8563 if (!retval) { 8564 /* Now, try to enable MSI-X interrupt mode */ 8565 retval = lpfc_sli_enable_msix(phba); 8566 if (!retval) { 8567 /* Indicate initialization to MSI-X mode */ 8568 phba->intr_type = MSIX; 8569 intr_mode = 2; 8570 } 8571 } 8572 } 8573 8574 /* Fallback to MSI if MSI-X initialization failed */ 8575 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8576 retval = lpfc_sli_enable_msi(phba); 8577 if (!retval) { 8578 /* Indicate initialization to MSI mode */ 8579 phba->intr_type = MSI; 8580 intr_mode = 1; 8581 } 8582 } 8583 8584 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8585 if (phba->intr_type == NONE) { 8586 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8587 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8588 if (!retval) { 8589 /* Indicate initialization to INTx mode */ 8590 phba->intr_type = INTx; 8591 intr_mode = 0; 8592 } 8593 } 8594 return intr_mode; 8595} 8596 8597/** 8598 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8599 * @phba: pointer to lpfc hba data structure. 8600 * 8601 * This routine is invoked to disable device interrupt and disassociate the 8602 * driver's interrupt handler(s) from interrupt vector(s) to device with 8603 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8604 * release the interrupt vector(s) for the message signaled interrupt. 8605 **/ 8606static void 8607lpfc_sli_disable_intr(struct lpfc_hba *phba) 8608{ 8609 /* Disable the currently initialized interrupt mode */ 8610 if (phba->intr_type == MSIX) 8611 lpfc_sli_disable_msix(phba); 8612 else if (phba->intr_type == MSI) 8613 lpfc_sli_disable_msi(phba); 8614 else if (phba->intr_type == INTx) 8615 free_irq(phba->pcidev->irq, phba); 8616 8617 /* Reset interrupt management states */ 8618 phba->intr_type = NONE; 8619 phba->sli.slistat.sli_intr = 0; 8620 8621 return; 8622} 8623 8624/** 8625 * lpfc_find_next_cpu - Find next available CPU that matches the phys_id 8626 * @phba: pointer to lpfc hba data structure. 8627 * 8628 * Find next available CPU to use for IRQ to CPU affinity. 8629 */ 8630static int 8631lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id) 8632{ 8633 struct lpfc_vector_map_info *cpup; 8634 int cpu; 8635 8636 cpup = phba->sli4_hba.cpu_map; 8637 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8638 /* CPU must be online */ 8639 if (cpu_online(cpu)) { 8640 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8641 (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) && 8642 (cpup->phys_id == phys_id)) { 8643 return cpu; 8644 } 8645 } 8646 cpup++; 8647 } 8648 8649 /* 8650 * If we get here, we have used ALL CPUs for the specific 8651 * phys_id. Now we need to clear out lpfc_used_cpu and start 8652 * reusing CPUs. 8653 */ 8654 8655 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8656 if (lpfc_used_cpu[cpu] == phys_id) 8657 lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY; 8658 } 8659 8660 cpup = phba->sli4_hba.cpu_map; 8661 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8662 /* CPU must be online */ 8663 if (cpu_online(cpu)) { 8664 if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) && 8665 (cpup->phys_id == phys_id)) { 8666 return cpu; 8667 } 8668 } 8669 cpup++; 8670 } 8671 return LPFC_VECTOR_MAP_EMPTY; 8672} 8673 8674/** 8675 * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors 8676 * @phba: pointer to lpfc hba data structure. 8677 * @vectors: number of HBA vectors 8678 * 8679 * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector 8680 * affinization across multple physical CPUs (numa nodes). 8681 * In addition, this routine will assign an IO channel for each CPU 8682 * to use when issuing I/Os. 8683 */ 8684static int 8685lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors) 8686{ 8687 int i, idx, saved_chann, used_chann, cpu, phys_id; 8688 int max_phys_id, min_phys_id; 8689 int num_io_channel, first_cpu, chan; 8690 struct lpfc_vector_map_info *cpup; 8691#ifdef CONFIG_X86 8692 struct cpuinfo_x86 *cpuinfo; 8693#endif 8694 uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1]; 8695 8696 /* If there is no mapping, just return */ 8697 if (!phba->cfg_fcp_cpu_map) 8698 return 1; 8699 8700 /* Init cpu_map array */ 8701 memset(phba->sli4_hba.cpu_map, 0xff, 8702 (sizeof(struct lpfc_vector_map_info) * 8703 phba->sli4_hba.num_present_cpu)); 8704 8705 max_phys_id = 0; 8706 min_phys_id = 0xff; 8707 phys_id = 0; 8708 num_io_channel = 0; 8709 first_cpu = LPFC_VECTOR_MAP_EMPTY; 8710 8711 /* Update CPU map with physical id and core id of each CPU */ 8712 cpup = phba->sli4_hba.cpu_map; 8713 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 8714#ifdef CONFIG_X86 8715 cpuinfo = &cpu_data(cpu); 8716 cpup->phys_id = cpuinfo->phys_proc_id; 8717 cpup->core_id = cpuinfo->cpu_core_id; 8718#else 8719 /* No distinction between CPUs for other platforms */ 8720 cpup->phys_id = 0; 8721 cpup->core_id = 0; 8722#endif 8723 8724 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8725 "3328 CPU physid %d coreid %d\n", 8726 cpup->phys_id, cpup->core_id); 8727 8728 if (cpup->phys_id > max_phys_id) 8729 max_phys_id = cpup->phys_id; 8730 if (cpup->phys_id < min_phys_id) 8731 min_phys_id = cpup->phys_id; 8732 cpup++; 8733 } 8734 8735 phys_id = min_phys_id; 8736 /* Now associate the HBA vectors with specific CPUs */ 8737 for (idx = 0; idx < vectors; idx++) { 8738 cpup = phba->sli4_hba.cpu_map; 8739 cpu = lpfc_find_next_cpu(phba, phys_id); 8740 if (cpu == LPFC_VECTOR_MAP_EMPTY) { 8741 8742 /* Try for all phys_id's */ 8743 for (i = 1; i < max_phys_id; i++) { 8744 phys_id++; 8745 if (phys_id > max_phys_id) 8746 phys_id = min_phys_id; 8747 cpu = lpfc_find_next_cpu(phba, phys_id); 8748 if (cpu == LPFC_VECTOR_MAP_EMPTY) 8749 continue; 8750 goto found; 8751 } 8752 8753 /* Use round robin for scheduling */ 8754 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN; 8755 chan = 0; 8756 cpup = phba->sli4_hba.cpu_map; 8757 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) { 8758 cpup->channel_id = chan; 8759 cpup++; 8760 chan++; 8761 if (chan >= phba->cfg_fcp_io_channel) 8762 chan = 0; 8763 } 8764 8765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8766 "3329 Cannot set affinity:" 8767 "Error mapping vector %d (%d)\n", 8768 idx, vectors); 8769 return 0; 8770 } 8771found: 8772 cpup += cpu; 8773 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP) 8774 lpfc_used_cpu[cpu] = phys_id; 8775 8776 /* Associate vector with selected CPU */ 8777 cpup->irq = phba->sli4_hba.msix_entries[idx].vector; 8778 8779 /* Associate IO channel with selected CPU */ 8780 cpup->channel_id = idx; 8781 num_io_channel++; 8782 8783 if (first_cpu == LPFC_VECTOR_MAP_EMPTY) 8784 first_cpu = cpu; 8785 8786 /* Now affinitize to the selected CPU */ 8787 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx]. 8788 vector, get_cpu_mask(cpu)); 8789 8790 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8791 "3330 Set Affinity: CPU %d channel %d " 8792 "irq %d (%x)\n", 8793 cpu, cpup->channel_id, 8794 phba->sli4_hba.msix_entries[idx].vector, i); 8795 8796 /* Spread vector mapping across multple physical CPU nodes */ 8797 phys_id++; 8798 if (phys_id > max_phys_id) 8799 phys_id = min_phys_id; 8800 } 8801 8802 /* 8803 * Finally fill in the IO channel for any remaining CPUs. 8804 * At this point, all IO channels have been assigned to a specific 8805 * MSIx vector, mapped to a specific CPU. 8806 * Base the remaining IO channel assigned, to IO channels already 8807 * assigned to other CPUs on the same phys_id. 8808 */ 8809 for (i = min_phys_id; i <= max_phys_id; i++) { 8810 /* 8811 * If there are no io channels already mapped to 8812 * this phys_id, just round robin thru the io_channels. 8813 * Setup chann[] for round robin. 8814 */ 8815 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8816 chann[idx] = idx; 8817 8818 saved_chann = 0; 8819 used_chann = 0; 8820 8821 /* 8822 * First build a list of IO channels already assigned 8823 * to this phys_id before reassigning the same IO 8824 * channels to the remaining CPUs. 8825 */ 8826 cpup = phba->sli4_hba.cpu_map; 8827 cpu = first_cpu; 8828 cpup += cpu; 8829 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; 8830 idx++) { 8831 if (cpup->phys_id == i) { 8832 /* 8833 * Save any IO channels that are 8834 * already mapped to this phys_id. 8835 */ 8836 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) { 8837 chann[saved_chann] = 8838 cpup->channel_id; 8839 saved_chann++; 8840 goto out; 8841 } 8842 8843 /* See if we are using round-robin */ 8844 if (saved_chann == 0) 8845 saved_chann = 8846 phba->cfg_fcp_io_channel; 8847 8848 /* Associate next IO channel with CPU */ 8849 cpup->channel_id = chann[used_chann]; 8850 num_io_channel++; 8851 used_chann++; 8852 if (used_chann == saved_chann) 8853 used_chann = 0; 8854 8855 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8856 "3331 Set IO_CHANN " 8857 "CPU %d channel %d\n", 8858 idx, cpup->channel_id); 8859 } 8860out: 8861 cpu++; 8862 if (cpu >= phba->sli4_hba.num_present_cpu) { 8863 cpup = phba->sli4_hba.cpu_map; 8864 cpu = 0; 8865 } else { 8866 cpup++; 8867 } 8868 } 8869 } 8870 8871 if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) { 8872 cpup = phba->sli4_hba.cpu_map; 8873 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) { 8874 if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) { 8875 cpup->channel_id = 0; 8876 num_io_channel++; 8877 8878 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8879 "3332 Assign IO_CHANN " 8880 "CPU %d channel %d\n", 8881 idx, cpup->channel_id); 8882 } 8883 cpup++; 8884 } 8885 } 8886 8887 /* Sanity check */ 8888 if (num_io_channel != phba->sli4_hba.num_present_cpu) 8889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8890 "3333 Set affinity mismatch:" 8891 "%d chann != %d cpus: %d vectors\n", 8892 num_io_channel, phba->sli4_hba.num_present_cpu, 8893 vectors); 8894 8895 /* Enable using cpu affinity for scheduling */ 8896 phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU; 8897 return 1; 8898} 8899 8900 8901/** 8902 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8903 * @phba: pointer to lpfc hba data structure. 8904 * 8905 * This routine is invoked to enable the MSI-X interrupt vectors to device 8906 * with SLI-4 interface spec. The kernel function pci_enable_msix_range() 8907 * is called to enable the MSI-X vectors. The device driver is responsible 8908 * for calling the individual request_irq() to register each MSI-X vector 8909 * with a interrupt handler, which is done in this function. Note that 8910 * later when device is unloading, the driver should always call free_irq() 8911 * on all MSI-X vectors it has done request_irq() on before calling 8912 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 8913 * will be left with MSI-X enabled and leaks its vectors. 8914 * 8915 * Return codes 8916 * 0 - successful 8917 * other values - error 8918 **/ 8919static int 8920lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8921{ 8922 int vectors, rc, index; 8923 8924 /* Set up MSI-X multi-message vectors */ 8925 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8926 phba->sli4_hba.msix_entries[index].entry = index; 8927 8928 /* Configure MSI-X capability structure */ 8929 vectors = phba->cfg_fcp_io_channel; 8930 if (phba->cfg_fof) { 8931 phba->sli4_hba.msix_entries[index].entry = index; 8932 vectors++; 8933 } 8934 rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries, 8935 2, vectors); 8936 if (rc < 0) { 8937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8938 "0484 PCI enable MSI-X failed (%d)\n", rc); 8939 goto vec_fail_out; 8940 } 8941 vectors = rc; 8942 8943 /* Log MSI-X vector assignment */ 8944 for (index = 0; index < vectors; index++) 8945 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8946 "0489 MSI-X entry[%d]: vector=x%x " 8947 "message=%d\n", index, 8948 phba->sli4_hba.msix_entries[index].vector, 8949 phba->sli4_hba.msix_entries[index].entry); 8950 8951 /* Assign MSI-X vectors to interrupt handlers */ 8952 for (index = 0; index < vectors; index++) { 8953 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8954 snprintf((char *)&phba->sli4_hba.handler_name[index], 8955 LPFC_SLI4_HANDLER_NAME_SZ, 8956 LPFC_DRIVER_HANDLER_NAME"%d", index); 8957 8958 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8959 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8960 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8961 if (phba->cfg_fof && (index == (vectors - 1))) 8962 rc = request_irq( 8963 phba->sli4_hba.msix_entries[index].vector, 8964 &lpfc_sli4_fof_intr_handler, 0, 8965 (char *)&phba->sli4_hba.handler_name[index], 8966 &phba->sli4_hba.fcp_eq_hdl[index]); 8967 else 8968 rc = request_irq( 8969 phba->sli4_hba.msix_entries[index].vector, 8970 &lpfc_sli4_hba_intr_handler, 0, 8971 (char *)&phba->sli4_hba.handler_name[index], 8972 &phba->sli4_hba.fcp_eq_hdl[index]); 8973 if (rc) { 8974 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8975 "0486 MSI-X fast-path (%d) " 8976 "request_irq failed (%d)\n", index, rc); 8977 goto cfg_fail_out; 8978 } 8979 } 8980 8981 if (phba->cfg_fof) 8982 vectors--; 8983 8984 if (vectors != phba->cfg_fcp_io_channel) { 8985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8986 "3238 Reducing IO channels to match number of " 8987 "MSI-X vectors, requested %d got %d\n", 8988 phba->cfg_fcp_io_channel, vectors); 8989 phba->cfg_fcp_io_channel = vectors; 8990 } 8991 8992 if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport))) 8993 lpfc_sli4_set_affinity(phba, vectors); 8994 return rc; 8995 8996cfg_fail_out: 8997 /* free the irq already requested */ 8998 for (--index; index >= 0; index--) { 8999 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 9000 vector, NULL); 9001 free_irq(phba->sli4_hba.msix_entries[index].vector, 9002 &phba->sli4_hba.fcp_eq_hdl[index]); 9003 } 9004 9005 /* Unconfigure MSI-X capability structure */ 9006 pci_disable_msix(phba->pcidev); 9007 9008vec_fail_out: 9009 return rc; 9010} 9011 9012/** 9013 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 9014 * @phba: pointer to lpfc hba data structure. 9015 * 9016 * This routine is invoked to release the MSI-X vectors and then disable the 9017 * MSI-X interrupt mode to device with SLI-4 interface spec. 9018 **/ 9019static void 9020lpfc_sli4_disable_msix(struct lpfc_hba *phba) 9021{ 9022 int index; 9023 9024 /* Free up MSI-X multi-message vectors */ 9025 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 9026 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index]. 9027 vector, NULL); 9028 free_irq(phba->sli4_hba.msix_entries[index].vector, 9029 &phba->sli4_hba.fcp_eq_hdl[index]); 9030 } 9031 if (phba->cfg_fof) { 9032 free_irq(phba->sli4_hba.msix_entries[index].vector, 9033 &phba->sli4_hba.fcp_eq_hdl[index]); 9034 } 9035 /* Disable MSI-X */ 9036 pci_disable_msix(phba->pcidev); 9037 9038 return; 9039} 9040 9041/** 9042 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9043 * @phba: pointer to lpfc hba data structure. 9044 * 9045 * This routine is invoked to enable the MSI interrupt mode to device with 9046 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9047 * to enable the MSI vector. The device driver is responsible for calling 9048 * the request_irq() to register MSI vector with a interrupt the handler, 9049 * which is done in this function. 9050 * 9051 * Return codes 9052 * 0 - successful 9053 * other values - error 9054 **/ 9055static int 9056lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9057{ 9058 int rc, index; 9059 9060 rc = pci_enable_msi(phba->pcidev); 9061 if (!rc) 9062 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9063 "0487 PCI enable MSI mode success.\n"); 9064 else { 9065 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9066 "0488 PCI enable MSI mode failed (%d)\n", rc); 9067 return rc; 9068 } 9069 9070 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9071 0, LPFC_DRIVER_NAME, phba); 9072 if (rc) { 9073 pci_disable_msi(phba->pcidev); 9074 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9075 "0490 MSI request_irq failed (%d)\n", rc); 9076 return rc; 9077 } 9078 9079 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 9080 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9081 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9082 } 9083 9084 if (phba->cfg_fof) { 9085 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9086 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9087 } 9088 return 0; 9089} 9090 9091/** 9092 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 9093 * @phba: pointer to lpfc hba data structure. 9094 * 9095 * This routine is invoked to disable the MSI interrupt mode to device with 9096 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 9097 * done request_irq() on before calling pci_disable_msi(). Failure to do so 9098 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 9099 * its vector. 9100 **/ 9101static void 9102lpfc_sli4_disable_msi(struct lpfc_hba *phba) 9103{ 9104 free_irq(phba->pcidev->irq, phba); 9105 pci_disable_msi(phba->pcidev); 9106 return; 9107} 9108 9109/** 9110 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9111 * @phba: pointer to lpfc hba data structure. 9112 * 9113 * This routine is invoked to enable device interrupt and associate driver's 9114 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9115 * interface spec. Depends on the interrupt mode configured to the driver, 9116 * the driver will try to fallback from the configured interrupt mode to an 9117 * interrupt mode which is supported by the platform, kernel, and device in 9118 * the order of: 9119 * MSI-X -> MSI -> IRQ. 9120 * 9121 * Return codes 9122 * 0 - successful 9123 * other values - error 9124 **/ 9125static uint32_t 9126lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9127{ 9128 uint32_t intr_mode = LPFC_INTR_ERROR; 9129 int retval, index; 9130 9131 if (cfg_mode == 2) { 9132 /* Preparation before conf_msi mbox cmd */ 9133 retval = 0; 9134 if (!retval) { 9135 /* Now, try to enable MSI-X interrupt mode */ 9136 retval = lpfc_sli4_enable_msix(phba); 9137 if (!retval) { 9138 /* Indicate initialization to MSI-X mode */ 9139 phba->intr_type = MSIX; 9140 intr_mode = 2; 9141 } 9142 } 9143 } 9144 9145 /* Fallback to MSI if MSI-X initialization failed */ 9146 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9147 retval = lpfc_sli4_enable_msi(phba); 9148 if (!retval) { 9149 /* Indicate initialization to MSI mode */ 9150 phba->intr_type = MSI; 9151 intr_mode = 1; 9152 } 9153 } 9154 9155 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9156 if (phba->intr_type == NONE) { 9157 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9158 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9159 if (!retval) { 9160 /* Indicate initialization to INTx mode */ 9161 phba->intr_type = INTx; 9162 intr_mode = 0; 9163 for (index = 0; index < phba->cfg_fcp_io_channel; 9164 index++) { 9165 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9166 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9167 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 9168 fcp_eq_in_use, 1); 9169 } 9170 if (phba->cfg_fof) { 9171 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 9172 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 9173 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 9174 fcp_eq_in_use, 1); 9175 } 9176 } 9177 } 9178 return intr_mode; 9179} 9180 9181/** 9182 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9183 * @phba: pointer to lpfc hba data structure. 9184 * 9185 * This routine is invoked to disable device interrupt and disassociate 9186 * the driver's interrupt handler(s) from interrupt vector(s) to device 9187 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9188 * will release the interrupt vector(s) for the message signaled interrupt. 9189 **/ 9190static void 9191lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9192{ 9193 /* Disable the currently initialized interrupt mode */ 9194 if (phba->intr_type == MSIX) 9195 lpfc_sli4_disable_msix(phba); 9196 else if (phba->intr_type == MSI) 9197 lpfc_sli4_disable_msi(phba); 9198 else if (phba->intr_type == INTx) 9199 free_irq(phba->pcidev->irq, phba); 9200 9201 /* Reset interrupt management states */ 9202 phba->intr_type = NONE; 9203 phba->sli.slistat.sli_intr = 0; 9204 9205 return; 9206} 9207 9208/** 9209 * lpfc_unset_hba - Unset SLI3 hba device initialization 9210 * @phba: pointer to lpfc hba data structure. 9211 * 9212 * This routine is invoked to unset the HBA device initialization steps to 9213 * a device with SLI-3 interface spec. 9214 **/ 9215static void 9216lpfc_unset_hba(struct lpfc_hba *phba) 9217{ 9218 struct lpfc_vport *vport = phba->pport; 9219 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9220 9221 spin_lock_irq(shost->host_lock); 9222 vport->load_flag |= FC_UNLOADING; 9223 spin_unlock_irq(shost->host_lock); 9224 9225 kfree(phba->vpi_bmask); 9226 kfree(phba->vpi_ids); 9227 9228 lpfc_stop_hba_timers(phba); 9229 9230 phba->pport->work_port_events = 0; 9231 9232 lpfc_sli_hba_down(phba); 9233 9234 lpfc_sli_brdrestart(phba); 9235 9236 lpfc_sli_disable_intr(phba); 9237 9238 return; 9239} 9240 9241/** 9242 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 9243 * @phba: Pointer to HBA context object. 9244 * 9245 * This function is called in the SLI4 code path to wait for completion 9246 * of device's XRIs exchange busy. It will check the XRI exchange busy 9247 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 9248 * that, it will check the XRI exchange busy on outstanding FCP and ELS 9249 * I/Os every 30 seconds, log error message, and wait forever. Only when 9250 * all XRI exchange busy complete, the driver unload shall proceed with 9251 * invoking the function reset ioctl mailbox command to the CNA and the 9252 * the rest of the driver unload resource release. 9253 **/ 9254static void 9255lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 9256{ 9257 int wait_time = 0; 9258 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9259 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9260 9261 while (!fcp_xri_cmpl || !els_xri_cmpl) { 9262 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 9263 if (!fcp_xri_cmpl) 9264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9265 "2877 FCP XRI exchange busy " 9266 "wait time: %d seconds.\n", 9267 wait_time/1000); 9268 if (!els_xri_cmpl) 9269 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9270 "2878 ELS XRI exchange busy " 9271 "wait time: %d seconds.\n", 9272 wait_time/1000); 9273 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 9274 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 9275 } else { 9276 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 9277 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 9278 } 9279 fcp_xri_cmpl = 9280 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9281 els_xri_cmpl = 9282 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9283 } 9284} 9285 9286/** 9287 * lpfc_sli4_hba_unset - Unset the fcoe hba 9288 * @phba: Pointer to HBA context object. 9289 * 9290 * This function is called in the SLI4 code path to reset the HBA's FCoE 9291 * function. The caller is not required to hold any lock. This routine 9292 * issues PCI function reset mailbox command to reset the FCoE function. 9293 * At the end of the function, it calls lpfc_hba_down_post function to 9294 * free any pending commands. 9295 **/ 9296static void 9297lpfc_sli4_hba_unset(struct lpfc_hba *phba) 9298{ 9299 int wait_cnt = 0; 9300 LPFC_MBOXQ_t *mboxq; 9301 struct pci_dev *pdev = phba->pcidev; 9302 9303 lpfc_stop_hba_timers(phba); 9304 phba->sli4_hba.intr_enable = 0; 9305 9306 /* 9307 * Gracefully wait out the potential current outstanding asynchronous 9308 * mailbox command. 9309 */ 9310 9311 /* First, block any pending async mailbox command from posted */ 9312 spin_lock_irq(&phba->hbalock); 9313 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 9314 spin_unlock_irq(&phba->hbalock); 9315 /* Now, trying to wait it out if we can */ 9316 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9317 msleep(10); 9318 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 9319 break; 9320 } 9321 /* Forcefully release the outstanding mailbox command if timed out */ 9322 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 9323 spin_lock_irq(&phba->hbalock); 9324 mboxq = phba->sli.mbox_active; 9325 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 9326 __lpfc_mbox_cmpl_put(phba, mboxq); 9327 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 9328 phba->sli.mbox_active = NULL; 9329 spin_unlock_irq(&phba->hbalock); 9330 } 9331 9332 /* Abort all iocbs associated with the hba */ 9333 lpfc_sli_hba_iocb_abort(phba); 9334 9335 /* Wait for completion of device XRI exchange busy */ 9336 lpfc_sli4_xri_exchange_busy_wait(phba); 9337 9338 /* Disable PCI subsystem interrupt */ 9339 lpfc_sli4_disable_intr(phba); 9340 9341 /* Disable SR-IOV if enabled */ 9342 if (phba->cfg_sriov_nr_virtfn) 9343 pci_disable_sriov(pdev); 9344 9345 /* Stop kthread signal shall trigger work_done one more time */ 9346 kthread_stop(phba->worker_thread); 9347 9348 /* Reset SLI4 HBA FCoE function */ 9349 lpfc_pci_function_reset(phba); 9350 lpfc_sli4_queue_destroy(phba); 9351 9352 /* Stop the SLI4 device port */ 9353 phba->pport->work_port_events = 0; 9354} 9355 9356 /** 9357 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 9358 * @phba: Pointer to HBA context object. 9359 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9360 * 9361 * This function is called in the SLI4 code path to read the port's 9362 * sli4 capabilities. 9363 * 9364 * This function may be be called from any context that can block-wait 9365 * for the completion. The expectation is that this routine is called 9366 * typically from probe_one or from the online routine. 9367 **/ 9368int 9369lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9370{ 9371 int rc; 9372 struct lpfc_mqe *mqe; 9373 struct lpfc_pc_sli4_params *sli4_params; 9374 uint32_t mbox_tmo; 9375 9376 rc = 0; 9377 mqe = &mboxq->u.mqe; 9378 9379 /* Read the port's SLI4 Parameters port capabilities */ 9380 lpfc_pc_sli4_params(mboxq); 9381 if (!phba->sli4_hba.intr_enable) 9382 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9383 else { 9384 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9385 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9386 } 9387 9388 if (unlikely(rc)) 9389 return 1; 9390 9391 sli4_params = &phba->sli4_hba.pc_sli4_params; 9392 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 9393 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 9394 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 9395 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 9396 &mqe->un.sli4_params); 9397 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 9398 &mqe->un.sli4_params); 9399 sli4_params->proto_types = mqe->un.sli4_params.word3; 9400 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 9401 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 9402 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 9403 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 9404 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 9405 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 9406 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 9407 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 9408 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 9409 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 9410 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 9411 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 9412 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 9413 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 9414 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 9415 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 9416 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 9417 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 9418 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 9419 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 9420 9421 /* Make sure that sge_supp_len can be handled by the driver */ 9422 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9423 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9424 9425 return rc; 9426} 9427 9428/** 9429 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 9430 * @phba: Pointer to HBA context object. 9431 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 9432 * 9433 * This function is called in the SLI4 code path to read the port's 9434 * sli4 capabilities. 9435 * 9436 * This function may be be called from any context that can block-wait 9437 * for the completion. The expectation is that this routine is called 9438 * typically from probe_one or from the online routine. 9439 **/ 9440int 9441lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 9442{ 9443 int rc; 9444 struct lpfc_mqe *mqe = &mboxq->u.mqe; 9445 struct lpfc_pc_sli4_params *sli4_params; 9446 uint32_t mbox_tmo; 9447 int length; 9448 struct lpfc_sli4_parameters *mbx_sli4_parameters; 9449 9450 /* 9451 * By default, the driver assumes the SLI4 port requires RPI 9452 * header postings. The SLI4_PARAM response will correct this 9453 * assumption. 9454 */ 9455 phba->sli4_hba.rpi_hdrs_in_use = 1; 9456 9457 /* Read the port's SLI4 Config Parameters */ 9458 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 9459 sizeof(struct lpfc_sli4_cfg_mhdr)); 9460 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9461 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 9462 length, LPFC_SLI4_MBX_EMBED); 9463 if (!phba->sli4_hba.intr_enable) 9464 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9465 else { 9466 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 9467 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 9468 } 9469 if (unlikely(rc)) 9470 return rc; 9471 sli4_params = &phba->sli4_hba.pc_sli4_params; 9472 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 9473 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 9474 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 9475 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 9476 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 9477 mbx_sli4_parameters); 9478 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 9479 mbx_sli4_parameters); 9480 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 9481 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 9482 else 9483 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 9484 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 9485 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 9486 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 9487 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 9488 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 9489 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 9490 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 9491 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 9492 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 9493 mbx_sli4_parameters); 9494 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 9495 mbx_sli4_parameters); 9496 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 9497 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 9498 9499 /* Make sure that sge_supp_len can be handled by the driver */ 9500 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 9501 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 9502 9503 return 0; 9504} 9505 9506/** 9507 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 9508 * @pdev: pointer to PCI device 9509 * @pid: pointer to PCI device identifier 9510 * 9511 * This routine is to be called to attach a device with SLI-3 interface spec 9512 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9513 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9514 * information of the device and driver to see if the driver state that it can 9515 * support this kind of device. If the match is successful, the driver core 9516 * invokes this routine. If this routine determines it can claim the HBA, it 9517 * does all the initialization that it needs to do to handle the HBA properly. 9518 * 9519 * Return code 9520 * 0 - driver can claim the device 9521 * negative value - driver can not claim the device 9522 **/ 9523static int 9524lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 9525{ 9526 struct lpfc_hba *phba; 9527 struct lpfc_vport *vport = NULL; 9528 struct Scsi_Host *shost = NULL; 9529 int error; 9530 uint32_t cfg_mode, intr_mode; 9531 9532 /* Allocate memory for HBA structure */ 9533 phba = lpfc_hba_alloc(pdev); 9534 if (!phba) 9535 return -ENOMEM; 9536 9537 /* Perform generic PCI device enabling operation */ 9538 error = lpfc_enable_pci_dev(phba); 9539 if (error) 9540 goto out_free_phba; 9541 9542 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 9543 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 9544 if (error) 9545 goto out_disable_pci_dev; 9546 9547 /* Set up SLI-3 specific device PCI memory space */ 9548 error = lpfc_sli_pci_mem_setup(phba); 9549 if (error) { 9550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9551 "1402 Failed to set up pci memory space.\n"); 9552 goto out_disable_pci_dev; 9553 } 9554 9555 /* Set up phase-1 common device driver resources */ 9556 error = lpfc_setup_driver_resource_phase1(phba); 9557 if (error) { 9558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9559 "1403 Failed to set up driver resource.\n"); 9560 goto out_unset_pci_mem_s3; 9561 } 9562 9563 /* Set up SLI-3 specific device driver resources */ 9564 error = lpfc_sli_driver_resource_setup(phba); 9565 if (error) { 9566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9567 "1404 Failed to set up driver resource.\n"); 9568 goto out_unset_pci_mem_s3; 9569 } 9570 9571 /* Initialize and populate the iocb list per host */ 9572 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 9573 if (error) { 9574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9575 "1405 Failed to initialize iocb list.\n"); 9576 goto out_unset_driver_resource_s3; 9577 } 9578 9579 /* Set up common device driver resources */ 9580 error = lpfc_setup_driver_resource_phase2(phba); 9581 if (error) { 9582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9583 "1406 Failed to set up driver resource.\n"); 9584 goto out_free_iocb_list; 9585 } 9586 9587 /* Get the default values for Model Name and Description */ 9588 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9589 9590 /* Create SCSI host to the physical port */ 9591 error = lpfc_create_shost(phba); 9592 if (error) { 9593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9594 "1407 Failed to create scsi host.\n"); 9595 goto out_unset_driver_resource; 9596 } 9597 9598 /* Configure sysfs attributes */ 9599 vport = phba->pport; 9600 error = lpfc_alloc_sysfs_attr(vport); 9601 if (error) { 9602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9603 "1476 Failed to allocate sysfs attr\n"); 9604 goto out_destroy_shost; 9605 } 9606 9607 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9608 /* Now, trying to enable interrupt and bring up the device */ 9609 cfg_mode = phba->cfg_use_msi; 9610 while (true) { 9611 /* Put device to a known state before enabling interrupt */ 9612 lpfc_stop_port(phba); 9613 /* Configure and enable interrupt */ 9614 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 9615 if (intr_mode == LPFC_INTR_ERROR) { 9616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9617 "0431 Failed to enable interrupt.\n"); 9618 error = -ENODEV; 9619 goto out_free_sysfs_attr; 9620 } 9621 /* SLI-3 HBA setup */ 9622 if (lpfc_sli_hba_setup(phba)) { 9623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9624 "1477 Failed to set up hba\n"); 9625 error = -ENODEV; 9626 goto out_remove_device; 9627 } 9628 9629 /* Wait 50ms for the interrupts of previous mailbox commands */ 9630 msleep(50); 9631 /* Check active interrupts on message signaled interrupts */ 9632 if (intr_mode == 0 || 9633 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 9634 /* Log the current active interrupt mode */ 9635 phba->intr_mode = intr_mode; 9636 lpfc_log_intr_mode(phba, intr_mode); 9637 break; 9638 } else { 9639 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9640 "0447 Configure interrupt mode (%d) " 9641 "failed active interrupt test.\n", 9642 intr_mode); 9643 /* Disable the current interrupt mode */ 9644 lpfc_sli_disable_intr(phba); 9645 /* Try next level of interrupt mode */ 9646 cfg_mode = --intr_mode; 9647 } 9648 } 9649 9650 /* Perform post initialization setup */ 9651 lpfc_post_init_setup(phba); 9652 9653 /* Check if there are static vports to be created. */ 9654 lpfc_create_static_vport(phba); 9655 9656 return 0; 9657 9658out_remove_device: 9659 lpfc_unset_hba(phba); 9660out_free_sysfs_attr: 9661 lpfc_free_sysfs_attr(vport); 9662out_destroy_shost: 9663 lpfc_destroy_shost(phba); 9664out_unset_driver_resource: 9665 lpfc_unset_driver_resource_phase2(phba); 9666out_free_iocb_list: 9667 lpfc_free_iocb_list(phba); 9668out_unset_driver_resource_s3: 9669 lpfc_sli_driver_resource_unset(phba); 9670out_unset_pci_mem_s3: 9671 lpfc_sli_pci_mem_unset(phba); 9672out_disable_pci_dev: 9673 lpfc_disable_pci_dev(phba); 9674 if (shost) 9675 scsi_host_put(shost); 9676out_free_phba: 9677 lpfc_hba_free(phba); 9678 return error; 9679} 9680 9681/** 9682 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 9683 * @pdev: pointer to PCI device 9684 * 9685 * This routine is to be called to disattach a device with SLI-3 interface 9686 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 9687 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9688 * device to be removed from the PCI subsystem properly. 9689 **/ 9690static void 9691lpfc_pci_remove_one_s3(struct pci_dev *pdev) 9692{ 9693 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9694 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9695 struct lpfc_vport **vports; 9696 struct lpfc_hba *phba = vport->phba; 9697 int i; 9698 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 9699 9700 spin_lock_irq(&phba->hbalock); 9701 vport->load_flag |= FC_UNLOADING; 9702 spin_unlock_irq(&phba->hbalock); 9703 9704 lpfc_free_sysfs_attr(vport); 9705 9706 /* Release all the vports against this physical port */ 9707 vports = lpfc_create_vport_work_array(phba); 9708 if (vports != NULL) 9709 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9710 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9711 continue; 9712 fc_vport_terminate(vports[i]->fc_vport); 9713 } 9714 lpfc_destroy_vport_work_array(phba, vports); 9715 9716 /* Remove FC host and then SCSI host with the physical port */ 9717 fc_remove_host(shost); 9718 scsi_remove_host(shost); 9719 lpfc_cleanup(vport); 9720 9721 /* 9722 * Bring down the SLI Layer. This step disable all interrupts, 9723 * clears the rings, discards all mailbox commands, and resets 9724 * the HBA. 9725 */ 9726 9727 /* HBA interrupt will be disabled after this call */ 9728 lpfc_sli_hba_down(phba); 9729 /* Stop kthread signal shall trigger work_done one more time */ 9730 kthread_stop(phba->worker_thread); 9731 /* Final cleanup of txcmplq and reset the HBA */ 9732 lpfc_sli_brdrestart(phba); 9733 9734 kfree(phba->vpi_bmask); 9735 kfree(phba->vpi_ids); 9736 9737 lpfc_stop_hba_timers(phba); 9738 spin_lock_irq(&phba->hbalock); 9739 list_del_init(&vport->listentry); 9740 spin_unlock_irq(&phba->hbalock); 9741 9742 lpfc_debugfs_terminate(vport); 9743 9744 /* Disable SR-IOV if enabled */ 9745 if (phba->cfg_sriov_nr_virtfn) 9746 pci_disable_sriov(pdev); 9747 9748 /* Disable interrupt */ 9749 lpfc_sli_disable_intr(phba); 9750 9751 scsi_host_put(shost); 9752 9753 /* 9754 * Call scsi_free before mem_free since scsi bufs are released to their 9755 * corresponding pools here. 9756 */ 9757 lpfc_scsi_free(phba); 9758 lpfc_mem_free_all(phba); 9759 9760 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9761 phba->hbqslimp.virt, phba->hbqslimp.phys); 9762 9763 /* Free resources associated with SLI2 interface */ 9764 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9765 phba->slim2p.virt, phba->slim2p.phys); 9766 9767 /* unmap adapter SLIM and Control Registers */ 9768 iounmap(phba->ctrl_regs_memmap_p); 9769 iounmap(phba->slim_memmap_p); 9770 9771 lpfc_hba_free(phba); 9772 9773 pci_release_selected_regions(pdev, bars); 9774 pci_disable_device(pdev); 9775} 9776 9777/** 9778 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9779 * @pdev: pointer to PCI device 9780 * @msg: power management message 9781 * 9782 * This routine is to be called from the kernel's PCI subsystem to support 9783 * system Power Management (PM) to device with SLI-3 interface spec. When 9784 * PM invokes this method, it quiesces the device by stopping the driver's 9785 * worker thread for the device, turning off device's interrupt and DMA, 9786 * and bring the device offline. Note that as the driver implements the 9787 * minimum PM requirements to a power-aware driver's PM support for the 9788 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9789 * to the suspend() method call will be treated as SUSPEND and the driver will 9790 * fully reinitialize its device during resume() method call, the driver will 9791 * set device to PCI_D3hot state in PCI config space instead of setting it 9792 * according to the @msg provided by the PM. 9793 * 9794 * Return code 9795 * 0 - driver suspended the device 9796 * Error otherwise 9797 **/ 9798static int 9799lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9800{ 9801 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9802 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9803 9804 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9805 "0473 PCI device Power Management suspend.\n"); 9806 9807 /* Bring down the device */ 9808 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9809 lpfc_offline(phba); 9810 kthread_stop(phba->worker_thread); 9811 9812 /* Disable interrupt from device */ 9813 lpfc_sli_disable_intr(phba); 9814 9815 /* Save device state to PCI config space */ 9816 pci_save_state(pdev); 9817 pci_set_power_state(pdev, PCI_D3hot); 9818 9819 return 0; 9820} 9821 9822/** 9823 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9824 * @pdev: pointer to PCI device 9825 * 9826 * This routine is to be called from the kernel's PCI subsystem to support 9827 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9828 * invokes this method, it restores the device's PCI config space state and 9829 * fully reinitializes the device and brings it online. Note that as the 9830 * driver implements the minimum PM requirements to a power-aware driver's 9831 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9832 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9833 * driver will fully reinitialize its device during resume() method call, 9834 * the device will be set to PCI_D0 directly in PCI config space before 9835 * restoring the state. 9836 * 9837 * Return code 9838 * 0 - driver suspended the device 9839 * Error otherwise 9840 **/ 9841static int 9842lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9843{ 9844 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9846 uint32_t intr_mode; 9847 int error; 9848 9849 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9850 "0452 PCI device Power Management resume.\n"); 9851 9852 /* Restore device state from PCI config space */ 9853 pci_set_power_state(pdev, PCI_D0); 9854 pci_restore_state(pdev); 9855 9856 /* 9857 * As the new kernel behavior of pci_restore_state() API call clears 9858 * device saved_state flag, need to save the restored state again. 9859 */ 9860 pci_save_state(pdev); 9861 9862 if (pdev->is_busmaster) 9863 pci_set_master(pdev); 9864 9865 /* Startup the kernel thread for this host adapter. */ 9866 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9867 "lpfc_worker_%d", phba->brd_no); 9868 if (IS_ERR(phba->worker_thread)) { 9869 error = PTR_ERR(phba->worker_thread); 9870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9871 "0434 PM resume failed to start worker " 9872 "thread: error=x%x.\n", error); 9873 return error; 9874 } 9875 9876 /* Configure and enable interrupt */ 9877 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9878 if (intr_mode == LPFC_INTR_ERROR) { 9879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9880 "0430 PM resume Failed to enable interrupt\n"); 9881 return -EIO; 9882 } else 9883 phba->intr_mode = intr_mode; 9884 9885 /* Restart HBA and bring it online */ 9886 lpfc_sli_brdrestart(phba); 9887 lpfc_online(phba); 9888 9889 /* Log the current active interrupt mode */ 9890 lpfc_log_intr_mode(phba, phba->intr_mode); 9891 9892 return 0; 9893} 9894 9895/** 9896 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9897 * @phba: pointer to lpfc hba data structure. 9898 * 9899 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9900 * aborts all the outstanding SCSI I/Os to the pci device. 9901 **/ 9902static void 9903lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9904{ 9905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9906 "2723 PCI channel I/O abort preparing for recovery\n"); 9907 9908 /* 9909 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9910 * and let the SCSI mid-layer to retry them to recover. 9911 */ 9912 lpfc_sli_abort_fcp_rings(phba); 9913} 9914 9915/** 9916 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9917 * @phba: pointer to lpfc hba data structure. 9918 * 9919 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9920 * disables the device interrupt and pci device, and aborts the internal FCP 9921 * pending I/Os. 9922 **/ 9923static void 9924lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9925{ 9926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9927 "2710 PCI channel disable preparing for reset\n"); 9928 9929 /* Block any management I/Os to the device */ 9930 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9931 9932 /* Block all SCSI devices' I/Os on the host */ 9933 lpfc_scsi_dev_block(phba); 9934 9935 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9936 lpfc_sli_flush_fcp_rings(phba); 9937 9938 /* stop all timers */ 9939 lpfc_stop_hba_timers(phba); 9940 9941 /* Disable interrupt and pci device */ 9942 lpfc_sli_disable_intr(phba); 9943 pci_disable_device(phba->pcidev); 9944} 9945 9946/** 9947 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9948 * @phba: pointer to lpfc hba data structure. 9949 * 9950 * This routine is called to prepare the SLI3 device for PCI slot permanently 9951 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9952 * pending I/Os. 9953 **/ 9954static void 9955lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9956{ 9957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9958 "2711 PCI channel permanent disable for failure\n"); 9959 /* Block all SCSI devices' I/Os on the host */ 9960 lpfc_scsi_dev_block(phba); 9961 9962 /* stop all timers */ 9963 lpfc_stop_hba_timers(phba); 9964 9965 /* Clean up all driver's outstanding SCSI I/Os */ 9966 lpfc_sli_flush_fcp_rings(phba); 9967} 9968 9969/** 9970 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9971 * @pdev: pointer to PCI device. 9972 * @state: the current PCI connection state. 9973 * 9974 * This routine is called from the PCI subsystem for I/O error handling to 9975 * device with SLI-3 interface spec. This function is called by the PCI 9976 * subsystem after a PCI bus error affecting this device has been detected. 9977 * When this function is invoked, it will need to stop all the I/Os and 9978 * interrupt(s) to the device. Once that is done, it will return 9979 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9980 * as desired. 9981 * 9982 * Return codes 9983 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9984 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9985 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9986 **/ 9987static pci_ers_result_t 9988lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9989{ 9990 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9991 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9992 9993 switch (state) { 9994 case pci_channel_io_normal: 9995 /* Non-fatal error, prepare for recovery */ 9996 lpfc_sli_prep_dev_for_recover(phba); 9997 return PCI_ERS_RESULT_CAN_RECOVER; 9998 case pci_channel_io_frozen: 9999 /* Fatal error, prepare for slot reset */ 10000 lpfc_sli_prep_dev_for_reset(phba); 10001 return PCI_ERS_RESULT_NEED_RESET; 10002 case pci_channel_io_perm_failure: 10003 /* Permanent failure, prepare for device down */ 10004 lpfc_sli_prep_dev_for_perm_failure(phba); 10005 return PCI_ERS_RESULT_DISCONNECT; 10006 default: 10007 /* Unknown state, prepare and request slot reset */ 10008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10009 "0472 Unknown PCI error state: x%x\n", state); 10010 lpfc_sli_prep_dev_for_reset(phba); 10011 return PCI_ERS_RESULT_NEED_RESET; 10012 } 10013} 10014 10015/** 10016 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10017 * @pdev: pointer to PCI device. 10018 * 10019 * This routine is called from the PCI subsystem for error handling to 10020 * device with SLI-3 interface spec. This is called after PCI bus has been 10021 * reset to restart the PCI card from scratch, as if from a cold-boot. 10022 * During the PCI subsystem error recovery, after driver returns 10023 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10024 * recovery and then call this routine before calling the .resume method 10025 * to recover the device. This function will initialize the HBA device, 10026 * enable the interrupt, but it will just put the HBA to offline state 10027 * without passing any I/O traffic. 10028 * 10029 * Return codes 10030 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10031 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10032 */ 10033static pci_ers_result_t 10034lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10035{ 10036 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10037 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10038 struct lpfc_sli *psli = &phba->sli; 10039 uint32_t intr_mode; 10040 10041 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10042 if (pci_enable_device_mem(pdev)) { 10043 printk(KERN_ERR "lpfc: Cannot re-enable " 10044 "PCI device after reset.\n"); 10045 return PCI_ERS_RESULT_DISCONNECT; 10046 } 10047 10048 pci_restore_state(pdev); 10049 10050 /* 10051 * As the new kernel behavior of pci_restore_state() API call clears 10052 * device saved_state flag, need to save the restored state again. 10053 */ 10054 pci_save_state(pdev); 10055 10056 if (pdev->is_busmaster) 10057 pci_set_master(pdev); 10058 10059 spin_lock_irq(&phba->hbalock); 10060 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10061 spin_unlock_irq(&phba->hbalock); 10062 10063 /* Configure and enable interrupt */ 10064 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10065 if (intr_mode == LPFC_INTR_ERROR) { 10066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10067 "0427 Cannot re-enable interrupt after " 10068 "slot reset.\n"); 10069 return PCI_ERS_RESULT_DISCONNECT; 10070 } else 10071 phba->intr_mode = intr_mode; 10072 10073 /* Take device offline, it will perform cleanup */ 10074 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10075 lpfc_offline(phba); 10076 lpfc_sli_brdrestart(phba); 10077 10078 /* Log the current active interrupt mode */ 10079 lpfc_log_intr_mode(phba, phba->intr_mode); 10080 10081 return PCI_ERS_RESULT_RECOVERED; 10082} 10083 10084/** 10085 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10086 * @pdev: pointer to PCI device 10087 * 10088 * This routine is called from the PCI subsystem for error handling to device 10089 * with SLI-3 interface spec. It is called when kernel error recovery tells 10090 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10091 * error recovery. After this call, traffic can start to flow from this device 10092 * again. 10093 */ 10094static void 10095lpfc_io_resume_s3(struct pci_dev *pdev) 10096{ 10097 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10098 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10099 10100 /* Bring device online, it will be no-op for non-fatal error resume */ 10101 lpfc_online(phba); 10102 10103 /* Clean up Advanced Error Reporting (AER) if needed */ 10104 if (phba->hba_flag & HBA_AER_ENABLED) 10105 pci_cleanup_aer_uncorrect_error_status(pdev); 10106} 10107 10108/** 10109 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10110 * @phba: pointer to lpfc hba data structure. 10111 * 10112 * returns the number of ELS/CT IOCBs to reserve 10113 **/ 10114int 10115lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10116{ 10117 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10118 10119 if (phba->sli_rev == LPFC_SLI_REV4) { 10120 if (max_xri <= 100) 10121 return 10; 10122 else if (max_xri <= 256) 10123 return 25; 10124 else if (max_xri <= 512) 10125 return 50; 10126 else if (max_xri <= 1024) 10127 return 100; 10128 else if (max_xri <= 1536) 10129 return 150; 10130 else if (max_xri <= 2048) 10131 return 200; 10132 else 10133 return 250; 10134 } else 10135 return 0; 10136} 10137 10138/** 10139 * lpfc_write_firmware - attempt to write a firmware image to the port 10140 * @fw: pointer to firmware image returned from request_firmware. 10141 * @phba: pointer to lpfc hba data structure. 10142 * 10143 **/ 10144static void 10145lpfc_write_firmware(const struct firmware *fw, void *context) 10146{ 10147 struct lpfc_hba *phba = (struct lpfc_hba *)context; 10148 char fwrev[FW_REV_STR_SIZE]; 10149 struct lpfc_grp_hdr *image; 10150 struct list_head dma_buffer_list; 10151 int i, rc = 0; 10152 struct lpfc_dmabuf *dmabuf, *next; 10153 uint32_t offset = 0, temp_offset = 0; 10154 10155 /* It can be null in no-wait mode, sanity check */ 10156 if (!fw) { 10157 rc = -ENXIO; 10158 goto out; 10159 } 10160 image = (struct lpfc_grp_hdr *)fw->data; 10161 10162 INIT_LIST_HEAD(&dma_buffer_list); 10163 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 10164 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 10165 LPFC_FILE_TYPE_GROUP) || 10166 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 10167 (be32_to_cpu(image->size) != fw->size)) { 10168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10169 "3022 Invalid FW image found. " 10170 "Magic:%x Type:%x ID:%x\n", 10171 be32_to_cpu(image->magic_number), 10172 bf_get_be32(lpfc_grp_hdr_file_type, image), 10173 bf_get_be32(lpfc_grp_hdr_id, image)); 10174 rc = -EINVAL; 10175 goto release_out; 10176 } 10177 lpfc_decode_firmware_rev(phba, fwrev, 1); 10178 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 10179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10180 "3023 Updating Firmware, Current Version:%s " 10181 "New Version:%s\n", 10182 fwrev, image->revision); 10183 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 10184 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 10185 GFP_KERNEL); 10186 if (!dmabuf) { 10187 rc = -ENOMEM; 10188 goto release_out; 10189 } 10190 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 10191 SLI4_PAGE_SIZE, 10192 &dmabuf->phys, 10193 GFP_KERNEL); 10194 if (!dmabuf->virt) { 10195 kfree(dmabuf); 10196 rc = -ENOMEM; 10197 goto release_out; 10198 } 10199 list_add_tail(&dmabuf->list, &dma_buffer_list); 10200 } 10201 while (offset < fw->size) { 10202 temp_offset = offset; 10203 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 10204 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 10205 memcpy(dmabuf->virt, 10206 fw->data + temp_offset, 10207 fw->size - temp_offset); 10208 temp_offset = fw->size; 10209 break; 10210 } 10211 memcpy(dmabuf->virt, fw->data + temp_offset, 10212 SLI4_PAGE_SIZE); 10213 temp_offset += SLI4_PAGE_SIZE; 10214 } 10215 rc = lpfc_wr_object(phba, &dma_buffer_list, 10216 (fw->size - offset), &offset); 10217 if (rc) 10218 goto release_out; 10219 } 10220 rc = offset; 10221 } 10222 10223release_out: 10224 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 10225 list_del(&dmabuf->list); 10226 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 10227 dmabuf->virt, dmabuf->phys); 10228 kfree(dmabuf); 10229 } 10230 release_firmware(fw); 10231out: 10232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10233 "3024 Firmware update done: %d.\n", rc); 10234 return; 10235} 10236 10237/** 10238 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 10239 * @phba: pointer to lpfc hba data structure. 10240 * 10241 * This routine is called to perform Linux generic firmware upgrade on device 10242 * that supports such feature. 10243 **/ 10244int 10245lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 10246{ 10247 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 10248 int ret; 10249 const struct firmware *fw; 10250 10251 /* Only supported on SLI4 interface type 2 for now */ 10252 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 10253 LPFC_SLI_INTF_IF_TYPE_2) 10254 return -EPERM; 10255 10256 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 10257 10258 if (fw_upgrade == INT_FW_UPGRADE) { 10259 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 10260 file_name, &phba->pcidev->dev, 10261 GFP_KERNEL, (void *)phba, 10262 lpfc_write_firmware); 10263 } else if (fw_upgrade == RUN_FW_UPGRADE) { 10264 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 10265 if (!ret) 10266 lpfc_write_firmware(fw, (void *)phba); 10267 } else { 10268 ret = -EINVAL; 10269 } 10270 10271 return ret; 10272} 10273 10274/** 10275 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 10276 * @pdev: pointer to PCI device 10277 * @pid: pointer to PCI device identifier 10278 * 10279 * This routine is called from the kernel's PCI subsystem to device with 10280 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10281 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10282 * information of the device and driver to see if the driver state that it 10283 * can support this kind of device. If the match is successful, the driver 10284 * core invokes this routine. If this routine determines it can claim the HBA, 10285 * it does all the initialization that it needs to do to handle the HBA 10286 * properly. 10287 * 10288 * Return code 10289 * 0 - driver can claim the device 10290 * negative value - driver can not claim the device 10291 **/ 10292static int 10293lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 10294{ 10295 struct lpfc_hba *phba; 10296 struct lpfc_vport *vport = NULL; 10297 struct Scsi_Host *shost = NULL; 10298 int error; 10299 uint32_t cfg_mode, intr_mode; 10300 int adjusted_fcp_io_channel; 10301 10302 /* Allocate memory for HBA structure */ 10303 phba = lpfc_hba_alloc(pdev); 10304 if (!phba) 10305 return -ENOMEM; 10306 10307 /* Perform generic PCI device enabling operation */ 10308 error = lpfc_enable_pci_dev(phba); 10309 if (error) 10310 goto out_free_phba; 10311 10312 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 10313 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 10314 if (error) 10315 goto out_disable_pci_dev; 10316 10317 /* Set up SLI-4 specific device PCI memory space */ 10318 error = lpfc_sli4_pci_mem_setup(phba); 10319 if (error) { 10320 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10321 "1410 Failed to set up pci memory space.\n"); 10322 goto out_disable_pci_dev; 10323 } 10324 10325 /* Set up phase-1 common device driver resources */ 10326 error = lpfc_setup_driver_resource_phase1(phba); 10327 if (error) { 10328 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10329 "1411 Failed to set up driver resource.\n"); 10330 goto out_unset_pci_mem_s4; 10331 } 10332 10333 /* Set up SLI-4 Specific device driver resources */ 10334 error = lpfc_sli4_driver_resource_setup(phba); 10335 if (error) { 10336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10337 "1412 Failed to set up driver resource.\n"); 10338 goto out_unset_pci_mem_s4; 10339 } 10340 10341 /* Initialize and populate the iocb list per host */ 10342 10343 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10344 "2821 initialize iocb list %d.\n", 10345 phba->cfg_iocb_cnt*1024); 10346 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 10347 10348 if (error) { 10349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10350 "1413 Failed to initialize iocb list.\n"); 10351 goto out_unset_driver_resource_s4; 10352 } 10353 10354 INIT_LIST_HEAD(&phba->active_rrq_list); 10355 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 10356 10357 /* Set up common device driver resources */ 10358 error = lpfc_setup_driver_resource_phase2(phba); 10359 if (error) { 10360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10361 "1414 Failed to set up driver resource.\n"); 10362 goto out_free_iocb_list; 10363 } 10364 10365 /* Get the default values for Model Name and Description */ 10366 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10367 10368 /* Create SCSI host to the physical port */ 10369 error = lpfc_create_shost(phba); 10370 if (error) { 10371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10372 "1415 Failed to create scsi host.\n"); 10373 goto out_unset_driver_resource; 10374 } 10375 10376 /* Configure sysfs attributes */ 10377 vport = phba->pport; 10378 error = lpfc_alloc_sysfs_attr(vport); 10379 if (error) { 10380 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10381 "1416 Failed to allocate sysfs attr\n"); 10382 goto out_destroy_shost; 10383 } 10384 10385 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10386 /* Now, trying to enable interrupt and bring up the device */ 10387 cfg_mode = phba->cfg_use_msi; 10388 10389 /* Put device to a known state before enabling interrupt */ 10390 lpfc_stop_port(phba); 10391 /* Configure and enable interrupt */ 10392 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 10393 if (intr_mode == LPFC_INTR_ERROR) { 10394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10395 "0426 Failed to enable interrupt.\n"); 10396 error = -ENODEV; 10397 goto out_free_sysfs_attr; 10398 } 10399 /* Default to single EQ for non-MSI-X */ 10400 if (phba->intr_type != MSIX) 10401 adjusted_fcp_io_channel = 1; 10402 else 10403 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 10404 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 10405 /* Set up SLI-4 HBA */ 10406 if (lpfc_sli4_hba_setup(phba)) { 10407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10408 "1421 Failed to set up hba\n"); 10409 error = -ENODEV; 10410 goto out_disable_intr; 10411 } 10412 10413 /* Log the current active interrupt mode */ 10414 phba->intr_mode = intr_mode; 10415 lpfc_log_intr_mode(phba, intr_mode); 10416 10417 /* Perform post initialization setup */ 10418 lpfc_post_init_setup(phba); 10419 10420 /* check for firmware upgrade or downgrade */ 10421 if (phba->cfg_request_firmware_upgrade) 10422 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 10423 10424 /* Check if there are static vports to be created. */ 10425 lpfc_create_static_vport(phba); 10426 return 0; 10427 10428out_disable_intr: 10429 lpfc_sli4_disable_intr(phba); 10430out_free_sysfs_attr: 10431 lpfc_free_sysfs_attr(vport); 10432out_destroy_shost: 10433 lpfc_destroy_shost(phba); 10434out_unset_driver_resource: 10435 lpfc_unset_driver_resource_phase2(phba); 10436out_free_iocb_list: 10437 lpfc_free_iocb_list(phba); 10438out_unset_driver_resource_s4: 10439 lpfc_sli4_driver_resource_unset(phba); 10440out_unset_pci_mem_s4: 10441 lpfc_sli4_pci_mem_unset(phba); 10442out_disable_pci_dev: 10443 lpfc_disable_pci_dev(phba); 10444 if (shost) 10445 scsi_host_put(shost); 10446out_free_phba: 10447 lpfc_hba_free(phba); 10448 return error; 10449} 10450 10451/** 10452 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 10453 * @pdev: pointer to PCI device 10454 * 10455 * This routine is called from the kernel's PCI subsystem to device with 10456 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 10457 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10458 * device to be removed from the PCI subsystem properly. 10459 **/ 10460static void 10461lpfc_pci_remove_one_s4(struct pci_dev *pdev) 10462{ 10463 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10464 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10465 struct lpfc_vport **vports; 10466 struct lpfc_hba *phba = vport->phba; 10467 int i; 10468 10469 /* Mark the device unloading flag */ 10470 spin_lock_irq(&phba->hbalock); 10471 vport->load_flag |= FC_UNLOADING; 10472 spin_unlock_irq(&phba->hbalock); 10473 10474 /* Free the HBA sysfs attributes */ 10475 lpfc_free_sysfs_attr(vport); 10476 10477 /* Release all the vports against this physical port */ 10478 vports = lpfc_create_vport_work_array(phba); 10479 if (vports != NULL) 10480 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10481 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10482 continue; 10483 fc_vport_terminate(vports[i]->fc_vport); 10484 } 10485 lpfc_destroy_vport_work_array(phba, vports); 10486 10487 /* Remove FC host and then SCSI host with the physical port */ 10488 fc_remove_host(shost); 10489 scsi_remove_host(shost); 10490 10491 /* Perform cleanup on the physical port */ 10492 lpfc_cleanup(vport); 10493 10494 /* 10495 * Bring down the SLI Layer. This step disables all interrupts, 10496 * clears the rings, discards all mailbox commands, and resets 10497 * the HBA FCoE function. 10498 */ 10499 lpfc_debugfs_terminate(vport); 10500 lpfc_sli4_hba_unset(phba); 10501 10502 spin_lock_irq(&phba->hbalock); 10503 list_del_init(&vport->listentry); 10504 spin_unlock_irq(&phba->hbalock); 10505 10506 /* Perform scsi free before driver resource_unset since scsi 10507 * buffers are released to their corresponding pools here. 10508 */ 10509 lpfc_scsi_free(phba); 10510 10511 lpfc_sli4_driver_resource_unset(phba); 10512 10513 /* Unmap adapter Control and Doorbell registers */ 10514 lpfc_sli4_pci_mem_unset(phba); 10515 10516 /* Release PCI resources and disable device's PCI function */ 10517 scsi_host_put(shost); 10518 lpfc_disable_pci_dev(phba); 10519 10520 /* Finally, free the driver's device data structure */ 10521 lpfc_hba_free(phba); 10522 10523 return; 10524} 10525 10526/** 10527 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 10528 * @pdev: pointer to PCI device 10529 * @msg: power management message 10530 * 10531 * This routine is called from the kernel's PCI subsystem to support system 10532 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 10533 * this method, it quiesces the device by stopping the driver's worker 10534 * thread for the device, turning off device's interrupt and DMA, and bring 10535 * the device offline. Note that as the driver implements the minimum PM 10536 * requirements to a power-aware driver's PM support for suspend/resume -- all 10537 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 10538 * method call will be treated as SUSPEND and the driver will fully 10539 * reinitialize its device during resume() method call, the driver will set 10540 * device to PCI_D3hot state in PCI config space instead of setting it 10541 * according to the @msg provided by the PM. 10542 * 10543 * Return code 10544 * 0 - driver suspended the device 10545 * Error otherwise 10546 **/ 10547static int 10548lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 10549{ 10550 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10551 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10552 10553 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10554 "2843 PCI device Power Management suspend.\n"); 10555 10556 /* Bring down the device */ 10557 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10558 lpfc_offline(phba); 10559 kthread_stop(phba->worker_thread); 10560 10561 /* Disable interrupt from device */ 10562 lpfc_sli4_disable_intr(phba); 10563 lpfc_sli4_queue_destroy(phba); 10564 10565 /* Save device state to PCI config space */ 10566 pci_save_state(pdev); 10567 pci_set_power_state(pdev, PCI_D3hot); 10568 10569 return 0; 10570} 10571 10572/** 10573 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 10574 * @pdev: pointer to PCI device 10575 * 10576 * This routine is called from the kernel's PCI subsystem to support system 10577 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 10578 * this method, it restores the device's PCI config space state and fully 10579 * reinitializes the device and brings it online. Note that as the driver 10580 * implements the minimum PM requirements to a power-aware driver's PM for 10581 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10582 * to the suspend() method call will be treated as SUSPEND and the driver 10583 * will fully reinitialize its device during resume() method call, the device 10584 * will be set to PCI_D0 directly in PCI config space before restoring the 10585 * state. 10586 * 10587 * Return code 10588 * 0 - driver suspended the device 10589 * Error otherwise 10590 **/ 10591static int 10592lpfc_pci_resume_one_s4(struct pci_dev *pdev) 10593{ 10594 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10595 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10596 uint32_t intr_mode; 10597 int error; 10598 10599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10600 "0292 PCI device Power Management resume.\n"); 10601 10602 /* Restore device state from PCI config space */ 10603 pci_set_power_state(pdev, PCI_D0); 10604 pci_restore_state(pdev); 10605 10606 /* 10607 * As the new kernel behavior of pci_restore_state() API call clears 10608 * device saved_state flag, need to save the restored state again. 10609 */ 10610 pci_save_state(pdev); 10611 10612 if (pdev->is_busmaster) 10613 pci_set_master(pdev); 10614 10615 /* Startup the kernel thread for this host adapter. */ 10616 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10617 "lpfc_worker_%d", phba->brd_no); 10618 if (IS_ERR(phba->worker_thread)) { 10619 error = PTR_ERR(phba->worker_thread); 10620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10621 "0293 PM resume failed to start worker " 10622 "thread: error=x%x.\n", error); 10623 return error; 10624 } 10625 10626 /* Configure and enable interrupt */ 10627 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10628 if (intr_mode == LPFC_INTR_ERROR) { 10629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10630 "0294 PM resume Failed to enable interrupt\n"); 10631 return -EIO; 10632 } else 10633 phba->intr_mode = intr_mode; 10634 10635 /* Restart HBA and bring it online */ 10636 lpfc_sli_brdrestart(phba); 10637 lpfc_online(phba); 10638 10639 /* Log the current active interrupt mode */ 10640 lpfc_log_intr_mode(phba, phba->intr_mode); 10641 10642 return 0; 10643} 10644 10645/** 10646 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 10647 * @phba: pointer to lpfc hba data structure. 10648 * 10649 * This routine is called to prepare the SLI4 device for PCI slot recover. It 10650 * aborts all the outstanding SCSI I/Os to the pci device. 10651 **/ 10652static void 10653lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 10654{ 10655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10656 "2828 PCI channel I/O abort preparing for recovery\n"); 10657 /* 10658 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10659 * and let the SCSI mid-layer to retry them to recover. 10660 */ 10661 lpfc_sli_abort_fcp_rings(phba); 10662} 10663 10664/** 10665 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 10666 * @phba: pointer to lpfc hba data structure. 10667 * 10668 * This routine is called to prepare the SLI4 device for PCI slot reset. It 10669 * disables the device interrupt and pci device, and aborts the internal FCP 10670 * pending I/Os. 10671 **/ 10672static void 10673lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10674{ 10675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10676 "2826 PCI channel disable preparing for reset\n"); 10677 10678 /* Block any management I/Os to the device */ 10679 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10680 10681 /* Block all SCSI devices' I/Os on the host */ 10682 lpfc_scsi_dev_block(phba); 10683 10684 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10685 lpfc_sli_flush_fcp_rings(phba); 10686 10687 /* stop all timers */ 10688 lpfc_stop_hba_timers(phba); 10689 10690 /* Disable interrupt and pci device */ 10691 lpfc_sli4_disable_intr(phba); 10692 lpfc_sli4_queue_destroy(phba); 10693 pci_disable_device(phba->pcidev); 10694} 10695 10696/** 10697 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10698 * @phba: pointer to lpfc hba data structure. 10699 * 10700 * This routine is called to prepare the SLI4 device for PCI slot permanently 10701 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10702 * pending I/Os. 10703 **/ 10704static void 10705lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10706{ 10707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10708 "2827 PCI channel permanent disable for failure\n"); 10709 10710 /* Block all SCSI devices' I/Os on the host */ 10711 lpfc_scsi_dev_block(phba); 10712 10713 /* stop all timers */ 10714 lpfc_stop_hba_timers(phba); 10715 10716 /* Clean up all driver's outstanding SCSI I/Os */ 10717 lpfc_sli_flush_fcp_rings(phba); 10718} 10719 10720/** 10721 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10722 * @pdev: pointer to PCI device. 10723 * @state: the current PCI connection state. 10724 * 10725 * This routine is called from the PCI subsystem for error handling to device 10726 * with SLI-4 interface spec. This function is called by the PCI subsystem 10727 * after a PCI bus error affecting this device has been detected. When this 10728 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10729 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10730 * for the PCI subsystem to perform proper recovery as desired. 10731 * 10732 * Return codes 10733 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10734 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10735 **/ 10736static pci_ers_result_t 10737lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10738{ 10739 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10740 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10741 10742 switch (state) { 10743 case pci_channel_io_normal: 10744 /* Non-fatal error, prepare for recovery */ 10745 lpfc_sli4_prep_dev_for_recover(phba); 10746 return PCI_ERS_RESULT_CAN_RECOVER; 10747 case pci_channel_io_frozen: 10748 /* Fatal error, prepare for slot reset */ 10749 lpfc_sli4_prep_dev_for_reset(phba); 10750 return PCI_ERS_RESULT_NEED_RESET; 10751 case pci_channel_io_perm_failure: 10752 /* Permanent failure, prepare for device down */ 10753 lpfc_sli4_prep_dev_for_perm_failure(phba); 10754 return PCI_ERS_RESULT_DISCONNECT; 10755 default: 10756 /* Unknown state, prepare and request slot reset */ 10757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10758 "2825 Unknown PCI error state: x%x\n", state); 10759 lpfc_sli4_prep_dev_for_reset(phba); 10760 return PCI_ERS_RESULT_NEED_RESET; 10761 } 10762} 10763 10764/** 10765 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10766 * @pdev: pointer to PCI device. 10767 * 10768 * This routine is called from the PCI subsystem for error handling to device 10769 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10770 * restart the PCI card from scratch, as if from a cold-boot. During the 10771 * PCI subsystem error recovery, after the driver returns 10772 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10773 * recovery and then call this routine before calling the .resume method to 10774 * recover the device. This function will initialize the HBA device, enable 10775 * the interrupt, but it will just put the HBA to offline state without 10776 * passing any I/O traffic. 10777 * 10778 * Return codes 10779 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10780 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10781 */ 10782static pci_ers_result_t 10783lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10784{ 10785 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10786 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10787 struct lpfc_sli *psli = &phba->sli; 10788 uint32_t intr_mode; 10789 10790 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10791 if (pci_enable_device_mem(pdev)) { 10792 printk(KERN_ERR "lpfc: Cannot re-enable " 10793 "PCI device after reset.\n"); 10794 return PCI_ERS_RESULT_DISCONNECT; 10795 } 10796 10797 pci_restore_state(pdev); 10798 10799 /* 10800 * As the new kernel behavior of pci_restore_state() API call clears 10801 * device saved_state flag, need to save the restored state again. 10802 */ 10803 pci_save_state(pdev); 10804 10805 if (pdev->is_busmaster) 10806 pci_set_master(pdev); 10807 10808 spin_lock_irq(&phba->hbalock); 10809 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10810 spin_unlock_irq(&phba->hbalock); 10811 10812 /* Configure and enable interrupt */ 10813 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10814 if (intr_mode == LPFC_INTR_ERROR) { 10815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10816 "2824 Cannot re-enable interrupt after " 10817 "slot reset.\n"); 10818 return PCI_ERS_RESULT_DISCONNECT; 10819 } else 10820 phba->intr_mode = intr_mode; 10821 10822 /* Log the current active interrupt mode */ 10823 lpfc_log_intr_mode(phba, phba->intr_mode); 10824 10825 return PCI_ERS_RESULT_RECOVERED; 10826} 10827 10828/** 10829 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10830 * @pdev: pointer to PCI device 10831 * 10832 * This routine is called from the PCI subsystem for error handling to device 10833 * with SLI-4 interface spec. It is called when kernel error recovery tells 10834 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10835 * error recovery. After this call, traffic can start to flow from this device 10836 * again. 10837 **/ 10838static void 10839lpfc_io_resume_s4(struct pci_dev *pdev) 10840{ 10841 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10842 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10843 10844 /* 10845 * In case of slot reset, as function reset is performed through 10846 * mailbox command which needs DMA to be enabled, this operation 10847 * has to be moved to the io resume phase. Taking device offline 10848 * will perform the necessary cleanup. 10849 */ 10850 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10851 /* Perform device reset */ 10852 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10853 lpfc_offline(phba); 10854 lpfc_sli_brdrestart(phba); 10855 /* Bring the device back online */ 10856 lpfc_online(phba); 10857 } 10858 10859 /* Clean up Advanced Error Reporting (AER) if needed */ 10860 if (phba->hba_flag & HBA_AER_ENABLED) 10861 pci_cleanup_aer_uncorrect_error_status(pdev); 10862} 10863 10864/** 10865 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10866 * @pdev: pointer to PCI device 10867 * @pid: pointer to PCI device identifier 10868 * 10869 * This routine is to be registered to the kernel's PCI subsystem. When an 10870 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10871 * at PCI device-specific information of the device and driver to see if the 10872 * driver state that it can support this kind of device. If the match is 10873 * successful, the driver core invokes this routine. This routine dispatches 10874 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10875 * do all the initialization that it needs to do to handle the HBA device 10876 * properly. 10877 * 10878 * Return code 10879 * 0 - driver can claim the device 10880 * negative value - driver can not claim the device 10881 **/ 10882static int 10883lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10884{ 10885 int rc; 10886 struct lpfc_sli_intf intf; 10887 10888 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10889 return -ENODEV; 10890 10891 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10892 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10893 rc = lpfc_pci_probe_one_s4(pdev, pid); 10894 else 10895 rc = lpfc_pci_probe_one_s3(pdev, pid); 10896 10897 return rc; 10898} 10899 10900/** 10901 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10902 * @pdev: pointer to PCI device 10903 * 10904 * This routine is to be registered to the kernel's PCI subsystem. When an 10905 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10906 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10907 * remove routine, which will perform all the necessary cleanup for the 10908 * device to be removed from the PCI subsystem properly. 10909 **/ 10910static void 10911lpfc_pci_remove_one(struct pci_dev *pdev) 10912{ 10913 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10914 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10915 10916 switch (phba->pci_dev_grp) { 10917 case LPFC_PCI_DEV_LP: 10918 lpfc_pci_remove_one_s3(pdev); 10919 break; 10920 case LPFC_PCI_DEV_OC: 10921 lpfc_pci_remove_one_s4(pdev); 10922 break; 10923 default: 10924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10925 "1424 Invalid PCI device group: 0x%x\n", 10926 phba->pci_dev_grp); 10927 break; 10928 } 10929 return; 10930} 10931 10932/** 10933 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10934 * @pdev: pointer to PCI device 10935 * @msg: power management message 10936 * 10937 * This routine is to be registered to the kernel's PCI subsystem to support 10938 * system Power Management (PM). When PM invokes this method, it dispatches 10939 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10940 * suspend the device. 10941 * 10942 * Return code 10943 * 0 - driver suspended the device 10944 * Error otherwise 10945 **/ 10946static int 10947lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10948{ 10949 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10950 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10951 int rc = -ENODEV; 10952 10953 switch (phba->pci_dev_grp) { 10954 case LPFC_PCI_DEV_LP: 10955 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10956 break; 10957 case LPFC_PCI_DEV_OC: 10958 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10959 break; 10960 default: 10961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10962 "1425 Invalid PCI device group: 0x%x\n", 10963 phba->pci_dev_grp); 10964 break; 10965 } 10966 return rc; 10967} 10968 10969/** 10970 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10971 * @pdev: pointer to PCI device 10972 * 10973 * This routine is to be registered to the kernel's PCI subsystem to support 10974 * system Power Management (PM). When PM invokes this method, it dispatches 10975 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10976 * resume the device. 10977 * 10978 * Return code 10979 * 0 - driver suspended the device 10980 * Error otherwise 10981 **/ 10982static int 10983lpfc_pci_resume_one(struct pci_dev *pdev) 10984{ 10985 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10986 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10987 int rc = -ENODEV; 10988 10989 switch (phba->pci_dev_grp) { 10990 case LPFC_PCI_DEV_LP: 10991 rc = lpfc_pci_resume_one_s3(pdev); 10992 break; 10993 case LPFC_PCI_DEV_OC: 10994 rc = lpfc_pci_resume_one_s4(pdev); 10995 break; 10996 default: 10997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10998 "1426 Invalid PCI device group: 0x%x\n", 10999 phba->pci_dev_grp); 11000 break; 11001 } 11002 return rc; 11003} 11004 11005/** 11006 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11007 * @pdev: pointer to PCI device. 11008 * @state: the current PCI connection state. 11009 * 11010 * This routine is registered to the PCI subsystem for error handling. This 11011 * function is called by the PCI subsystem after a PCI bus error affecting 11012 * this device has been detected. When this routine is invoked, it dispatches 11013 * the action to the proper SLI-3 or SLI-4 device error detected handling 11014 * routine, which will perform the proper error detected operation. 11015 * 11016 * Return codes 11017 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11018 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11019 **/ 11020static pci_ers_result_t 11021lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11022{ 11023 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11024 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11025 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11026 11027 switch (phba->pci_dev_grp) { 11028 case LPFC_PCI_DEV_LP: 11029 rc = lpfc_io_error_detected_s3(pdev, state); 11030 break; 11031 case LPFC_PCI_DEV_OC: 11032 rc = lpfc_io_error_detected_s4(pdev, state); 11033 break; 11034 default: 11035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11036 "1427 Invalid PCI device group: 0x%x\n", 11037 phba->pci_dev_grp); 11038 break; 11039 } 11040 return rc; 11041} 11042 11043/** 11044 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11045 * @pdev: pointer to PCI device. 11046 * 11047 * This routine is registered to the PCI subsystem for error handling. This 11048 * function is called after PCI bus has been reset to restart the PCI card 11049 * from scratch, as if from a cold-boot. When this routine is invoked, it 11050 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11051 * routine, which will perform the proper device reset. 11052 * 11053 * Return codes 11054 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11055 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11056 **/ 11057static pci_ers_result_t 11058lpfc_io_slot_reset(struct pci_dev *pdev) 11059{ 11060 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11061 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11062 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11063 11064 switch (phba->pci_dev_grp) { 11065 case LPFC_PCI_DEV_LP: 11066 rc = lpfc_io_slot_reset_s3(pdev); 11067 break; 11068 case LPFC_PCI_DEV_OC: 11069 rc = lpfc_io_slot_reset_s4(pdev); 11070 break; 11071 default: 11072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11073 "1428 Invalid PCI device group: 0x%x\n", 11074 phba->pci_dev_grp); 11075 break; 11076 } 11077 return rc; 11078} 11079 11080/** 11081 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11082 * @pdev: pointer to PCI device 11083 * 11084 * This routine is registered to the PCI subsystem for error handling. It 11085 * is called when kernel error recovery tells the lpfc driver that it is 11086 * OK to resume normal PCI operation after PCI bus error recovery. When 11087 * this routine is invoked, it dispatches the action to the proper SLI-3 11088 * or SLI-4 device io_resume routine, which will resume the device operation. 11089 **/ 11090static void 11091lpfc_io_resume(struct pci_dev *pdev) 11092{ 11093 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11094 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11095 11096 switch (phba->pci_dev_grp) { 11097 case LPFC_PCI_DEV_LP: 11098 lpfc_io_resume_s3(pdev); 11099 break; 11100 case LPFC_PCI_DEV_OC: 11101 lpfc_io_resume_s4(pdev); 11102 break; 11103 default: 11104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11105 "1429 Invalid PCI device group: 0x%x\n", 11106 phba->pci_dev_grp); 11107 break; 11108 } 11109 return; 11110} 11111 11112/** 11113 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 11114 * @phba: pointer to lpfc hba data structure. 11115 * 11116 * This routine checks to see if OAS is supported for this adapter. If 11117 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 11118 * the enable oas flag is cleared and the pool created for OAS device data 11119 * is destroyed. 11120 * 11121 **/ 11122void 11123lpfc_sli4_oas_verify(struct lpfc_hba *phba) 11124{ 11125 11126 if (!phba->cfg_EnableXLane) 11127 return; 11128 11129 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 11130 phba->cfg_fof = 1; 11131 } else { 11132 phba->cfg_fof = 0; 11133 if (phba->device_data_mem_pool) 11134 mempool_destroy(phba->device_data_mem_pool); 11135 phba->device_data_mem_pool = NULL; 11136 } 11137 11138 return; 11139} 11140 11141/** 11142 * lpfc_fof_queue_setup - Set up all the fof queues 11143 * @phba: pointer to lpfc hba data structure. 11144 * 11145 * This routine is invoked to set up all the fof queues for the FC HBA 11146 * operation. 11147 * 11148 * Return codes 11149 * 0 - successful 11150 * -ENOMEM - No available memory 11151 **/ 11152int 11153lpfc_fof_queue_setup(struct lpfc_hba *phba) 11154{ 11155 struct lpfc_sli *psli = &phba->sli; 11156 int rc; 11157 11158 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 11159 if (rc) 11160 return -ENOMEM; 11161 11162 if (phba->cfg_fof) { 11163 11164 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 11165 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 11166 if (rc) 11167 goto out_oas_cq; 11168 11169 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 11170 phba->sli4_hba.oas_cq, LPFC_FCP); 11171 if (rc) 11172 goto out_oas_wq; 11173 11174 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING]; 11175 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING]; 11176 } 11177 11178 return 0; 11179 11180out_oas_wq: 11181 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 11182out_oas_cq: 11183 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 11184 return rc; 11185 11186} 11187 11188/** 11189 * lpfc_fof_queue_create - Create all the fof queues 11190 * @phba: pointer to lpfc hba data structure. 11191 * 11192 * This routine is invoked to allocate all the fof queues for the FC HBA 11193 * operation. For each SLI4 queue type, the parameters such as queue entry 11194 * count (queue depth) shall be taken from the module parameter. For now, 11195 * we just use some constant number as place holder. 11196 * 11197 * Return codes 11198 * 0 - successful 11199 * -ENOMEM - No availble memory 11200 * -EIO - The mailbox failed to complete successfully. 11201 **/ 11202int 11203lpfc_fof_queue_create(struct lpfc_hba *phba) 11204{ 11205 struct lpfc_queue *qdesc; 11206 11207 /* Create FOF EQ */ 11208 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 11209 phba->sli4_hba.eq_ecount); 11210 if (!qdesc) 11211 goto out_error; 11212 11213 phba->sli4_hba.fof_eq = qdesc; 11214 11215 if (phba->cfg_fof) { 11216 11217 /* Create OAS CQ */ 11218 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 11219 phba->sli4_hba.cq_ecount); 11220 if (!qdesc) 11221 goto out_error; 11222 11223 phba->sli4_hba.oas_cq = qdesc; 11224 11225 /* Create OAS WQ */ 11226 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 11227 phba->sli4_hba.wq_ecount); 11228 if (!qdesc) 11229 goto out_error; 11230 11231 phba->sli4_hba.oas_wq = qdesc; 11232 11233 } 11234 return 0; 11235 11236out_error: 11237 lpfc_fof_queue_destroy(phba); 11238 return -ENOMEM; 11239} 11240 11241/** 11242 * lpfc_fof_queue_destroy - Destroy all the fof queues 11243 * @phba: pointer to lpfc hba data structure. 11244 * 11245 * This routine is invoked to release all the SLI4 queues with the FC HBA 11246 * operation. 11247 * 11248 * Return codes 11249 * 0 - successful 11250 **/ 11251int 11252lpfc_fof_queue_destroy(struct lpfc_hba *phba) 11253{ 11254 /* Release FOF Event queue */ 11255 if (phba->sli4_hba.fof_eq != NULL) { 11256 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 11257 phba->sli4_hba.fof_eq = NULL; 11258 } 11259 11260 /* Release OAS Completion queue */ 11261 if (phba->sli4_hba.oas_cq != NULL) { 11262 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 11263 phba->sli4_hba.oas_cq = NULL; 11264 } 11265 11266 /* Release OAS Work queue */ 11267 if (phba->sli4_hba.oas_wq != NULL) { 11268 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 11269 phba->sli4_hba.oas_wq = NULL; 11270 } 11271 return 0; 11272} 11273 11274static struct pci_device_id lpfc_id_table[] = { 11275 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 11276 PCI_ANY_ID, PCI_ANY_ID, }, 11277 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 11278 PCI_ANY_ID, PCI_ANY_ID, }, 11279 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 11280 PCI_ANY_ID, PCI_ANY_ID, }, 11281 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 11282 PCI_ANY_ID, PCI_ANY_ID, }, 11283 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 11284 PCI_ANY_ID, PCI_ANY_ID, }, 11285 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 11286 PCI_ANY_ID, PCI_ANY_ID, }, 11287 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 11288 PCI_ANY_ID, PCI_ANY_ID, }, 11289 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 11290 PCI_ANY_ID, PCI_ANY_ID, }, 11291 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 11292 PCI_ANY_ID, PCI_ANY_ID, }, 11293 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 11294 PCI_ANY_ID, PCI_ANY_ID, }, 11295 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 11296 PCI_ANY_ID, PCI_ANY_ID, }, 11297 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 11298 PCI_ANY_ID, PCI_ANY_ID, }, 11299 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 11300 PCI_ANY_ID, PCI_ANY_ID, }, 11301 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 11302 PCI_ANY_ID, PCI_ANY_ID, }, 11303 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 11304 PCI_ANY_ID, PCI_ANY_ID, }, 11305 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 11306 PCI_ANY_ID, PCI_ANY_ID, }, 11307 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 11308 PCI_ANY_ID, PCI_ANY_ID, }, 11309 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 11310 PCI_ANY_ID, PCI_ANY_ID, }, 11311 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 11312 PCI_ANY_ID, PCI_ANY_ID, }, 11313 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 11314 PCI_ANY_ID, PCI_ANY_ID, }, 11315 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 11316 PCI_ANY_ID, PCI_ANY_ID, }, 11317 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 11318 PCI_ANY_ID, PCI_ANY_ID, }, 11319 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 11320 PCI_ANY_ID, PCI_ANY_ID, }, 11321 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 11322 PCI_ANY_ID, PCI_ANY_ID, }, 11323 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 11324 PCI_ANY_ID, PCI_ANY_ID, }, 11325 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 11326 PCI_ANY_ID, PCI_ANY_ID, }, 11327 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 11328 PCI_ANY_ID, PCI_ANY_ID, }, 11329 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 11330 PCI_ANY_ID, PCI_ANY_ID, }, 11331 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 11332 PCI_ANY_ID, PCI_ANY_ID, }, 11333 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 11334 PCI_ANY_ID, PCI_ANY_ID, }, 11335 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 11336 PCI_ANY_ID, PCI_ANY_ID, }, 11337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 11338 PCI_ANY_ID, PCI_ANY_ID, }, 11339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 11340 PCI_ANY_ID, PCI_ANY_ID, }, 11341 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 11342 PCI_ANY_ID, PCI_ANY_ID, }, 11343 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 11344 PCI_ANY_ID, PCI_ANY_ID, }, 11345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 11346 PCI_ANY_ID, PCI_ANY_ID, }, 11347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 11348 PCI_ANY_ID, PCI_ANY_ID, }, 11349 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 11350 PCI_ANY_ID, PCI_ANY_ID, }, 11351 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 11352 PCI_ANY_ID, PCI_ANY_ID, }, 11353 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 11354 PCI_ANY_ID, PCI_ANY_ID, }, 11355 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 11356 PCI_ANY_ID, PCI_ANY_ID, }, 11357 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 11358 PCI_ANY_ID, PCI_ANY_ID, }, 11359 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 11360 PCI_ANY_ID, PCI_ANY_ID, }, 11361 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 11362 PCI_ANY_ID, PCI_ANY_ID, }, 11363 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 11364 PCI_ANY_ID, PCI_ANY_ID, }, 11365 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC, 11366 PCI_ANY_ID, PCI_ANY_ID, }, 11367 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 11368 PCI_ANY_ID, PCI_ANY_ID, }, 11369 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 11370 PCI_ANY_ID, PCI_ANY_ID, }, 11371 { 0 } 11372}; 11373 11374MODULE_DEVICE_TABLE(pci, lpfc_id_table); 11375 11376static const struct pci_error_handlers lpfc_err_handler = { 11377 .error_detected = lpfc_io_error_detected, 11378 .slot_reset = lpfc_io_slot_reset, 11379 .resume = lpfc_io_resume, 11380}; 11381 11382static struct pci_driver lpfc_driver = { 11383 .name = LPFC_DRIVER_NAME, 11384 .id_table = lpfc_id_table, 11385 .probe = lpfc_pci_probe_one, 11386 .remove = lpfc_pci_remove_one, 11387 .suspend = lpfc_pci_suspend_one, 11388 .resume = lpfc_pci_resume_one, 11389 .err_handler = &lpfc_err_handler, 11390}; 11391 11392static const struct file_operations lpfc_mgmt_fop = { 11393 .owner = THIS_MODULE, 11394}; 11395 11396static struct miscdevice lpfc_mgmt_dev = { 11397 .minor = MISC_DYNAMIC_MINOR, 11398 .name = "lpfcmgmt", 11399 .fops = &lpfc_mgmt_fop, 11400}; 11401 11402/** 11403 * lpfc_init - lpfc module initialization routine 11404 * 11405 * This routine is to be invoked when the lpfc module is loaded into the 11406 * kernel. The special kernel macro module_init() is used to indicate the 11407 * role of this routine to the kernel as lpfc module entry point. 11408 * 11409 * Return codes 11410 * 0 - successful 11411 * -ENOMEM - FC attach transport failed 11412 * all others - failed 11413 */ 11414static int __init 11415lpfc_init(void) 11416{ 11417 int cpu; 11418 int error = 0; 11419 11420 printk(LPFC_MODULE_DESC "\n"); 11421 printk(LPFC_COPYRIGHT "\n"); 11422 11423 error = misc_register(&lpfc_mgmt_dev); 11424 if (error) 11425 printk(KERN_ERR "Could not register lpfcmgmt device, " 11426 "misc_register returned with status %d", error); 11427 11428 if (lpfc_enable_npiv) { 11429 lpfc_transport_functions.vport_create = lpfc_vport_create; 11430 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 11431 } 11432 lpfc_transport_template = 11433 fc_attach_transport(&lpfc_transport_functions); 11434 if (lpfc_transport_template == NULL) 11435 return -ENOMEM; 11436 if (lpfc_enable_npiv) { 11437 lpfc_vport_transport_template = 11438 fc_attach_transport(&lpfc_vport_transport_functions); 11439 if (lpfc_vport_transport_template == NULL) { 11440 fc_release_transport(lpfc_transport_template); 11441 return -ENOMEM; 11442 } 11443 } 11444 11445 /* Initialize in case vector mapping is needed */ 11446 lpfc_used_cpu = NULL; 11447 lpfc_present_cpu = 0; 11448 for_each_present_cpu(cpu) 11449 lpfc_present_cpu++; 11450 11451 error = pci_register_driver(&lpfc_driver); 11452 if (error) { 11453 fc_release_transport(lpfc_transport_template); 11454 if (lpfc_enable_npiv) 11455 fc_release_transport(lpfc_vport_transport_template); 11456 } 11457 11458 return error; 11459} 11460 11461/** 11462 * lpfc_exit - lpfc module removal routine 11463 * 11464 * This routine is invoked when the lpfc module is removed from the kernel. 11465 * The special kernel macro module_exit() is used to indicate the role of 11466 * this routine to the kernel as lpfc module exit point. 11467 */ 11468static void __exit 11469lpfc_exit(void) 11470{ 11471 misc_deregister(&lpfc_mgmt_dev); 11472 pci_unregister_driver(&lpfc_driver); 11473 fc_release_transport(lpfc_transport_template); 11474 if (lpfc_enable_npiv) 11475 fc_release_transport(lpfc_vport_transport_template); 11476 if (_dump_buf_data) { 11477 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 11478 "_dump_buf_data at 0x%p\n", 11479 (1L << _dump_buf_data_order), _dump_buf_data); 11480 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 11481 } 11482 11483 if (_dump_buf_dif) { 11484 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 11485 "_dump_buf_dif at 0x%p\n", 11486 (1L << _dump_buf_dif_order), _dump_buf_dif); 11487 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 11488 } 11489 kfree(lpfc_used_cpu); 11490 idr_destroy(&lpfc_hba_index); 11491} 11492 11493module_init(lpfc_init); 11494module_exit(lpfc_exit); 11495MODULE_LICENSE("GPL"); 11496MODULE_DESCRIPTION(LPFC_MODULE_DESC); 11497MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 11498MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 11499