lpfc_init.c revision 6b5151fd7baec6812fece993ddd7a2cf9fd0125f
1/******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 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 37#include <scsi/scsi.h> 38#include <scsi/scsi_device.h> 39#include <scsi/scsi_host.h> 40#include <scsi/scsi_transport_fc.h> 41 42#include "lpfc_hw4.h" 43#include "lpfc_hw.h" 44#include "lpfc_sli.h" 45#include "lpfc_sli4.h" 46#include "lpfc_nl.h" 47#include "lpfc_disc.h" 48#include "lpfc_scsi.h" 49#include "lpfc.h" 50#include "lpfc_logmsg.h" 51#include "lpfc_crtn.h" 52#include "lpfc_vport.h" 53#include "lpfc_version.h" 54 55char *_dump_buf_data; 56unsigned long _dump_buf_data_order; 57char *_dump_buf_dif; 58unsigned long _dump_buf_dif_order; 59spinlock_t _dump_buf_lock; 60 61static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 62static int lpfc_post_rcv_buf(struct lpfc_hba *); 63static int lpfc_sli4_queue_verify(struct lpfc_hba *); 64static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 65static int lpfc_setup_endian_order(struct lpfc_hba *); 66static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 67static void lpfc_free_sgl_list(struct lpfc_hba *); 68static int lpfc_init_sgl_list(struct lpfc_hba *); 69static int lpfc_init_active_sgl_array(struct lpfc_hba *); 70static void lpfc_free_active_sgl(struct lpfc_hba *); 71static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 72static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 73static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 74static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 75static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 76 77static struct scsi_transport_template *lpfc_transport_template = NULL; 78static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 79static DEFINE_IDR(lpfc_hba_index); 80 81/** 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 83 * @phba: pointer to lpfc hba data structure. 84 * 85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 86 * mailbox command. It retrieves the revision information from the HBA and 87 * collects the Vital Product Data (VPD) about the HBA for preparing the 88 * configuration of the HBA. 89 * 90 * Return codes: 91 * 0 - success. 92 * -ERESTART - requests the SLI layer to reset the HBA and try again. 93 * Any other value - indicates an error. 94 **/ 95int 96lpfc_config_port_prep(struct lpfc_hba *phba) 97{ 98 lpfc_vpd_t *vp = &phba->vpd; 99 int i = 0, rc; 100 LPFC_MBOXQ_t *pmb; 101 MAILBOX_t *mb; 102 char *lpfc_vpd_data = NULL; 103 uint16_t offset = 0; 104 static char licensed[56] = 105 "key unlock for use with gnu public licensed code only\0"; 106 static int init_key = 1; 107 108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 109 if (!pmb) { 110 phba->link_state = LPFC_HBA_ERROR; 111 return -ENOMEM; 112 } 113 114 mb = &pmb->u.mb; 115 phba->link_state = LPFC_INIT_MBX_CMDS; 116 117 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 118 if (init_key) { 119 uint32_t *ptext = (uint32_t *) licensed; 120 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 122 *ptext = cpu_to_be32(*ptext); 123 init_key = 0; 124 } 125 126 lpfc_read_nv(phba, pmb); 127 memset((char*)mb->un.varRDnvp.rsvd3, 0, 128 sizeof (mb->un.varRDnvp.rsvd3)); 129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 130 sizeof (licensed)); 131 132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 133 134 if (rc != MBX_SUCCESS) { 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 136 "0324 Config Port initialization " 137 "error, mbxCmd x%x READ_NVPARM, " 138 "mbxStatus x%x\n", 139 mb->mbxCommand, mb->mbxStatus); 140 mempool_free(pmb, phba->mbox_mem_pool); 141 return -ERESTART; 142 } 143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 144 sizeof(phba->wwnn)); 145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 146 sizeof(phba->wwpn)); 147 } 148 149 phba->sli3_options = 0x0; 150 151 /* Setup and issue mailbox READ REV command */ 152 lpfc_read_rev(phba, pmb); 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 156 "0439 Adapter failed to init, mbxCmd x%x " 157 "READ_REV, mbxStatus x%x\n", 158 mb->mbxCommand, mb->mbxStatus); 159 mempool_free( pmb, phba->mbox_mem_pool); 160 return -ERESTART; 161 } 162 163 164 /* 165 * The value of rr must be 1 since the driver set the cv field to 1. 166 * This setting requires the FW to set all revision fields. 167 */ 168 if (mb->un.varRdRev.rr == 0) { 169 vp->rev.rBit = 0; 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0440 Adapter failed to init, READ_REV has " 172 "missing revision information.\n"); 173 mempool_free(pmb, phba->mbox_mem_pool); 174 return -ERESTART; 175 } 176 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 178 mempool_free(pmb, phba->mbox_mem_pool); 179 return -EINVAL; 180 } 181 182 /* Save information as VPD data */ 183 vp->rev.rBit = 1; 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 189 vp->rev.biuRev = mb->un.varRdRev.biuRev; 190 vp->rev.smRev = mb->un.varRdRev.smRev; 191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 192 vp->rev.endecRev = mb->un.varRdRev.endecRev; 193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 199 200 /* If the sli feature level is less then 9, we must 201 * tear down all RPIs and VPIs on link down if NPIV 202 * is enabled. 203 */ 204 if (vp->rev.feaLevelHigh < 9) 205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 206 207 if (lpfc_is_LC_HBA(phba->pcidev->device)) 208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 209 sizeof (phba->RandomData)); 210 211 /* Get adapter VPD information */ 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 213 if (!lpfc_vpd_data) 214 goto out_free_mbox; 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244} 245 246/** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256static void 257lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258{ 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265} 266 267/** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277static void 278lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279{ 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309} 310 311/** 312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 313 * cfg_soft_wwnn, cfg_soft_wwpn 314 * @vport: pointer to lpfc vport data structure. 315 * 316 * 317 * Return codes 318 * None. 319 **/ 320void 321lpfc_update_vport_wwn(struct lpfc_vport *vport) 322{ 323 /* If the soft name exists then update it using the service params */ 324 if (vport->phba->cfg_soft_wwnn) 325 u64_to_wwn(vport->phba->cfg_soft_wwnn, 326 vport->fc_sparam.nodeName.u.wwn); 327 if (vport->phba->cfg_soft_wwpn) 328 u64_to_wwn(vport->phba->cfg_soft_wwpn, 329 vport->fc_sparam.portName.u.wwn); 330 331 /* 332 * If the name is empty or there exists a soft name 333 * then copy the service params name, otherwise use the fc name 334 */ 335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 337 sizeof(struct lpfc_name)); 338 else 339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 340 sizeof(struct lpfc_name)); 341 342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 347 sizeof(struct lpfc_name)); 348} 349 350/** 351 * lpfc_config_port_post - Perform lpfc initialization after config port 352 * @phba: pointer to lpfc hba data structure. 353 * 354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 355 * command call. It performs all internal resource and state setups on the 356 * port: post IOCB buffers, enable appropriate host interrupt attentions, 357 * ELS ring timers, etc. 358 * 359 * Return codes 360 * 0 - success. 361 * Any other value - error. 362 **/ 363int 364lpfc_config_port_post(struct lpfc_hba *phba) 365{ 366 struct lpfc_vport *vport = phba->pport; 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 368 LPFC_MBOXQ_t *pmb; 369 MAILBOX_t *mb; 370 struct lpfc_dmabuf *mp; 371 struct lpfc_sli *psli = &phba->sli; 372 uint32_t status, timeout; 373 int i, j; 374 int rc; 375 376 spin_lock_irq(&phba->hbalock); 377 /* 378 * If the Config port completed correctly the HBA is not 379 * over heated any more. 380 */ 381 if (phba->over_temp_state == HBA_OVER_TEMP) 382 phba->over_temp_state = HBA_NORMAL_TEMP; 383 spin_unlock_irq(&phba->hbalock); 384 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 386 if (!pmb) { 387 phba->link_state = LPFC_HBA_ERROR; 388 return -ENOMEM; 389 } 390 mb = &pmb->u.mb; 391 392 /* Get login parameters for NID. */ 393 rc = lpfc_read_sparam(phba, pmb, 0); 394 if (rc) { 395 mempool_free(pmb, phba->mbox_mem_pool); 396 return -ENOMEM; 397 } 398 399 pmb->vport = vport; 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 402 "0448 Adapter failed init, mbxCmd x%x " 403 "READ_SPARM mbxStatus x%x\n", 404 mb->mbxCommand, mb->mbxStatus); 405 phba->link_state = LPFC_HBA_ERROR; 406 mp = (struct lpfc_dmabuf *) pmb->context1; 407 mempool_free(pmb, phba->mbox_mem_pool); 408 lpfc_mbuf_free(phba, mp->virt, mp->phys); 409 kfree(mp); 410 return -EIO; 411 } 412 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 pmb->context1 = NULL; 419 lpfc_update_vport_wwn(vport); 420 421 /* Update the fc_host data structures with new wwn. */ 422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 424 fc_host_max_npiv_vports(shost) = phba->max_vpi; 425 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 427 /* This should be consolidated into parse_vpd ? - mr */ 428 if (phba->SerialNumber[0] == 0) { 429 uint8_t *outptr; 430 431 outptr = &vport->fc_nodename.u.s.IEEE[0]; 432 for (i = 0; i < 12; i++) { 433 status = *outptr++; 434 j = ((status & 0xf0) >> 4); 435 if (j <= 9) 436 phba->SerialNumber[i] = 437 (char)((uint8_t) 0x30 + (uint8_t) j); 438 else 439 phba->SerialNumber[i] = 440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 441 i++; 442 j = (status & 0xf); 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 } 450 } 451 452 lpfc_read_config(phba, pmb); 453 pmb->vport = vport; 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 456 "0453 Adapter failed to init, mbxCmd x%x " 457 "READ_CONFIG, mbxStatus x%x\n", 458 mb->mbxCommand, mb->mbxStatus); 459 phba->link_state = LPFC_HBA_ERROR; 460 mempool_free( pmb, phba->mbox_mem_pool); 461 return -EIO; 462 } 463 464 /* Check if the port is disabled */ 465 lpfc_sli_read_link_ste(phba); 466 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 469 phba->cfg_hba_queue_depth = 470 (mb->un.varRdConfig.max_xri + 1) - 471 lpfc_sli4_get_els_iocb_cnt(phba); 472 473 phba->lmt = mb->un.varRdConfig.lmt; 474 475 /* Get the default values for Model Name and Description */ 476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 477 478 phba->link_state = LPFC_LINK_DOWN; 479 480 /* Only process IOCBs on ELS ring till hba_state is READY */ 481 if (psli->ring[psli->extra_ring].cmdringaddr) 482 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 483 if (psli->ring[psli->fcp_ring].cmdringaddr) 484 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->next_ring].cmdringaddr) 486 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 488 /* Post receive buffers for desired rings */ 489 if (phba->sli_rev != 3) 490 lpfc_post_rcv_buf(phba); 491 492 /* 493 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 494 */ 495 if (phba->intr_type == MSIX) { 496 rc = lpfc_config_msi(phba, pmb); 497 if (rc) { 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 502 if (rc != MBX_SUCCESS) { 503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 504 "0352 Config MSI mailbox command " 505 "failed, mbxCmd x%x, mbxStatus x%x\n", 506 pmb->u.mb.mbxCommand, 507 pmb->u.mb.mbxStatus); 508 mempool_free(pmb, phba->mbox_mem_pool); 509 return -EIO; 510 } 511 } 512 513 spin_lock_irq(&phba->hbalock); 514 /* Initialize ERATT handling flag */ 515 phba->hba_flag &= ~HBA_ERATT_HANDLED; 516 517 /* Enable appropriate host interrupts */ 518 if (lpfc_readl(phba->HCregaddr, &status)) { 519 spin_unlock_irq(&phba->hbalock); 520 return -EIO; 521 } 522 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 523 if (psli->num_rings > 0) 524 status |= HC_R0INT_ENA; 525 if (psli->num_rings > 1) 526 status |= HC_R1INT_ENA; 527 if (psli->num_rings > 2) 528 status |= HC_R2INT_ENA; 529 if (psli->num_rings > 3) 530 status |= HC_R3INT_ENA; 531 532 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 533 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 534 status &= ~(HC_R0INT_ENA); 535 536 writel(status, phba->HCregaddr); 537 readl(phba->HCregaddr); /* flush */ 538 spin_unlock_irq(&phba->hbalock); 539 540 /* Set up ring-0 (ELS) timer */ 541 timeout = phba->fc_ratov * 2; 542 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 543 /* Set up heart beat (HB) timer */ 544 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 545 phba->hb_outstanding = 0; 546 phba->last_completion_time = jiffies; 547 /* Set up error attention (ERATT) polling timer */ 548 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 549 550 if (phba->hba_flag & LINK_DISABLED) { 551 lpfc_printf_log(phba, 552 KERN_ERR, LOG_INIT, 553 "2598 Adapter Link is disabled.\n"); 554 lpfc_down_link(phba, pmb); 555 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 556 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 557 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 558 lpfc_printf_log(phba, 559 KERN_ERR, LOG_INIT, 560 "2599 Adapter failed to issue DOWN_LINK" 561 " mbox command rc 0x%x\n", rc); 562 563 mempool_free(pmb, phba->mbox_mem_pool); 564 return -EIO; 565 } 566 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 567 mempool_free(pmb, phba->mbox_mem_pool); 568 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 569 if (rc) 570 return rc; 571 } 572 /* MBOX buffer will be freed in mbox compl */ 573 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 574 if (!pmb) { 575 phba->link_state = LPFC_HBA_ERROR; 576 return -ENOMEM; 577 } 578 579 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 580 pmb->mbox_cmpl = lpfc_config_async_cmpl; 581 pmb->vport = phba->pport; 582 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 583 584 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 585 lpfc_printf_log(phba, 586 KERN_ERR, 587 LOG_INIT, 588 "0456 Adapter failed to issue " 589 "ASYNCEVT_ENABLE mbox status x%x\n", 590 rc); 591 mempool_free(pmb, phba->mbox_mem_pool); 592 } 593 594 /* Get Option rom version */ 595 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 596 if (!pmb) { 597 phba->link_state = LPFC_HBA_ERROR; 598 return -ENOMEM; 599 } 600 601 lpfc_dump_wakeup_param(phba, pmb); 602 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 603 pmb->vport = phba->pport; 604 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 605 606 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 608 "to get Option ROM version status x%x\n", rc); 609 mempool_free(pmb, phba->mbox_mem_pool); 610 } 611 612 return 0; 613} 614 615/** 616 * lpfc_hba_init_link - Initialize the FC link 617 * @phba: pointer to lpfc hba data structure. 618 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 619 * 620 * This routine will issue the INIT_LINK mailbox command call. 621 * It is available to other drivers through the lpfc_hba data 622 * structure for use as a delayed link up mechanism with the 623 * module parameter lpfc_suppress_link_up. 624 * 625 * Return code 626 * 0 - success 627 * Any other value - error 628 **/ 629int 630lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 631{ 632 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 633} 634 635/** 636 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 637 * @phba: pointer to lpfc hba data structure. 638 * @fc_topology: desired fc topology. 639 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 640 * 641 * This routine will issue the INIT_LINK mailbox command call. 642 * It is available to other drivers through the lpfc_hba data 643 * structure for use as a delayed link up mechanism with the 644 * module parameter lpfc_suppress_link_up. 645 * 646 * Return code 647 * 0 - success 648 * Any other value - error 649 **/ 650int 651lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 652 uint32_t flag) 653{ 654 struct lpfc_vport *vport = phba->pport; 655 LPFC_MBOXQ_t *pmb; 656 MAILBOX_t *mb; 657 int rc; 658 659 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 660 if (!pmb) { 661 phba->link_state = LPFC_HBA_ERROR; 662 return -ENOMEM; 663 } 664 mb = &pmb->u.mb; 665 pmb->vport = vport; 666 667 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 668 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 669 !(phba->lmt & LMT_1Gb)) || 670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 671 !(phba->lmt & LMT_2Gb)) || 672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 673 !(phba->lmt & LMT_4Gb)) || 674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 675 !(phba->lmt & LMT_8Gb)) || 676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 677 !(phba->lmt & LMT_10Gb)) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 679 !(phba->lmt & LMT_16Gb))) { 680 /* Reset link speed to auto */ 681 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 682 "1302 Invalid speed for this board:%d " 683 "Reset link speed to auto.\n", 684 phba->cfg_link_speed); 685 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 686 } 687 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 688 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 689 if (phba->sli_rev < LPFC_SLI_REV4) 690 lpfc_set_loopback_flag(phba); 691 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 692 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 694 "0498 Adapter failed to init, mbxCmd x%x " 695 "INIT_LINK, mbxStatus x%x\n", 696 mb->mbxCommand, mb->mbxStatus); 697 if (phba->sli_rev <= LPFC_SLI_REV3) { 698 /* Clear all interrupt enable conditions */ 699 writel(0, phba->HCregaddr); 700 readl(phba->HCregaddr); /* flush */ 701 /* Clear all pending interrupts */ 702 writel(0xffffffff, phba->HAregaddr); 703 readl(phba->HAregaddr); /* flush */ 704 } 705 phba->link_state = LPFC_HBA_ERROR; 706 if (rc != MBX_BUSY || flag == MBX_POLL) 707 mempool_free(pmb, phba->mbox_mem_pool); 708 return -EIO; 709 } 710 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 711 if (flag == MBX_POLL) 712 mempool_free(pmb, phba->mbox_mem_pool); 713 714 return 0; 715} 716 717/** 718 * lpfc_hba_down_link - this routine downs the FC link 719 * @phba: pointer to lpfc hba data structure. 720 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 721 * 722 * This routine will issue the DOWN_LINK mailbox command call. 723 * It is available to other drivers through the lpfc_hba data 724 * structure for use to stop the link. 725 * 726 * Return code 727 * 0 - success 728 * Any other value - error 729 **/ 730int 731lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 732{ 733 LPFC_MBOXQ_t *pmb; 734 int rc; 735 736 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 737 if (!pmb) { 738 phba->link_state = LPFC_HBA_ERROR; 739 return -ENOMEM; 740 } 741 742 lpfc_printf_log(phba, 743 KERN_ERR, LOG_INIT, 744 "0491 Adapter Link is disabled.\n"); 745 lpfc_down_link(phba, pmb); 746 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 747 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 748 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 749 lpfc_printf_log(phba, 750 KERN_ERR, LOG_INIT, 751 "2522 Adapter failed to issue DOWN_LINK" 752 " mbox command rc 0x%x\n", rc); 753 754 mempool_free(pmb, phba->mbox_mem_pool); 755 return -EIO; 756 } 757 if (flag == MBX_POLL) 758 mempool_free(pmb, phba->mbox_mem_pool); 759 760 return 0; 761} 762 763/** 764 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 765 * @phba: pointer to lpfc HBA data structure. 766 * 767 * This routine will do LPFC uninitialization before the HBA is reset when 768 * bringing down the SLI Layer. 769 * 770 * Return codes 771 * 0 - success. 772 * Any other value - error. 773 **/ 774int 775lpfc_hba_down_prep(struct lpfc_hba *phba) 776{ 777 struct lpfc_vport **vports; 778 int i; 779 780 if (phba->sli_rev <= LPFC_SLI_REV3) { 781 /* Disable interrupts */ 782 writel(0, phba->HCregaddr); 783 readl(phba->HCregaddr); /* flush */ 784 } 785 786 if (phba->pport->load_flag & FC_UNLOADING) 787 lpfc_cleanup_discovery_resources(phba->pport); 788 else { 789 vports = lpfc_create_vport_work_array(phba); 790 if (vports != NULL) 791 for (i = 0; i <= phba->max_vports && 792 vports[i] != NULL; i++) 793 lpfc_cleanup_discovery_resources(vports[i]); 794 lpfc_destroy_vport_work_array(phba, vports); 795 } 796 return 0; 797} 798 799/** 800 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 801 * @phba: pointer to lpfc HBA data structure. 802 * 803 * This routine will do uninitialization after the HBA is reset when bring 804 * down the SLI Layer. 805 * 806 * Return codes 807 * 0 - success. 808 * Any other value - error. 809 **/ 810static int 811lpfc_hba_down_post_s3(struct lpfc_hba *phba) 812{ 813 struct lpfc_sli *psli = &phba->sli; 814 struct lpfc_sli_ring *pring; 815 struct lpfc_dmabuf *mp, *next_mp; 816 LIST_HEAD(completions); 817 int i; 818 819 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 820 lpfc_sli_hbqbuf_free_all(phba); 821 else { 822 /* Cleanup preposted buffers on the ELS ring */ 823 pring = &psli->ring[LPFC_ELS_RING]; 824 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 825 list_del(&mp->list); 826 pring->postbufq_cnt--; 827 lpfc_mbuf_free(phba, mp->virt, mp->phys); 828 kfree(mp); 829 } 830 } 831 832 spin_lock_irq(&phba->hbalock); 833 for (i = 0; i < psli->num_rings; i++) { 834 pring = &psli->ring[i]; 835 836 /* At this point in time the HBA is either reset or DOA. Either 837 * way, nothing should be on txcmplq as it will NEVER complete. 838 */ 839 list_splice_init(&pring->txcmplq, &completions); 840 pring->txcmplq_cnt = 0; 841 spin_unlock_irq(&phba->hbalock); 842 843 /* Cancel all the IOCBs from the completions list */ 844 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 845 IOERR_SLI_ABORTED); 846 847 lpfc_sli_abort_iocb_ring(phba, pring); 848 spin_lock_irq(&phba->hbalock); 849 } 850 spin_unlock_irq(&phba->hbalock); 851 852 return 0; 853} 854 855/** 856 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 857 * @phba: pointer to lpfc HBA data structure. 858 * 859 * This routine will do uninitialization after the HBA is reset when bring 860 * down the SLI Layer. 861 * 862 * Return codes 863 * 0 - success. 864 * Any other value - error. 865 **/ 866static int 867lpfc_hba_down_post_s4(struct lpfc_hba *phba) 868{ 869 struct lpfc_scsi_buf *psb, *psb_next; 870 LIST_HEAD(aborts); 871 int ret; 872 unsigned long iflag = 0; 873 struct lpfc_sglq *sglq_entry = NULL; 874 875 ret = lpfc_hba_down_post_s3(phba); 876 if (ret) 877 return ret; 878 /* At this point in time the HBA is either reset or DOA. Either 879 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 880 * on the lpfc_sgl_list so that it can either be freed if the 881 * driver is unloading or reposted if the driver is restarting 882 * the port. 883 */ 884 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 885 /* scsl_buf_list */ 886 /* abts_sgl_list_lock required because worker thread uses this 887 * list. 888 */ 889 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 890 list_for_each_entry(sglq_entry, 891 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 892 sglq_entry->state = SGL_FREED; 893 894 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 895 &phba->sli4_hba.lpfc_sgl_list); 896 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 897 /* abts_scsi_buf_list_lock required because worker thread uses this 898 * list. 899 */ 900 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 901 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 902 &aborts); 903 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 904 spin_unlock_irq(&phba->hbalock); 905 906 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 907 psb->pCmd = NULL; 908 psb->status = IOSTAT_SUCCESS; 909 } 910 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 911 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 912 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 913 return 0; 914} 915 916/** 917 * lpfc_hba_down_post - Wrapper func for hba down post routine 918 * @phba: pointer to lpfc HBA data structure. 919 * 920 * This routine wraps the actual SLI3 or SLI4 routine for performing 921 * uninitialization after the HBA is reset when bring down the SLI Layer. 922 * 923 * Return codes 924 * 0 - success. 925 * Any other value - error. 926 **/ 927int 928lpfc_hba_down_post(struct lpfc_hba *phba) 929{ 930 return (*phba->lpfc_hba_down_post)(phba); 931} 932 933/** 934 * lpfc_hb_timeout - The HBA-timer timeout handler 935 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 936 * 937 * This is the HBA-timer timeout handler registered to the lpfc driver. When 938 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 939 * work-port-events bitmap and the worker thread is notified. This timeout 940 * event will be used by the worker thread to invoke the actual timeout 941 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 942 * be performed in the timeout handler and the HBA timeout event bit shall 943 * be cleared by the worker thread after it has taken the event bitmap out. 944 **/ 945static void 946lpfc_hb_timeout(unsigned long ptr) 947{ 948 struct lpfc_hba *phba; 949 uint32_t tmo_posted; 950 unsigned long iflag; 951 952 phba = (struct lpfc_hba *)ptr; 953 954 /* Check for heart beat timeout conditions */ 955 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 956 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 957 if (!tmo_posted) 958 phba->pport->work_port_events |= WORKER_HB_TMO; 959 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 960 961 /* Tell the worker thread there is work to do */ 962 if (!tmo_posted) 963 lpfc_worker_wake_up(phba); 964 return; 965} 966 967/** 968 * lpfc_rrq_timeout - The RRQ-timer timeout handler 969 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 970 * 971 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 972 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 973 * work-port-events bitmap and the worker thread is notified. This timeout 974 * event will be used by the worker thread to invoke the actual timeout 975 * handler routine, lpfc_rrq_handler. Any periodical operations will 976 * be performed in the timeout handler and the RRQ timeout event bit shall 977 * be cleared by the worker thread after it has taken the event bitmap out. 978 **/ 979static void 980lpfc_rrq_timeout(unsigned long ptr) 981{ 982 struct lpfc_hba *phba; 983 unsigned long iflag; 984 985 phba = (struct lpfc_hba *)ptr; 986 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 987 phba->hba_flag |= HBA_RRQ_ACTIVE; 988 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 989 lpfc_worker_wake_up(phba); 990} 991 992/** 993 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 994 * @phba: pointer to lpfc hba data structure. 995 * @pmboxq: pointer to the driver internal queue element for mailbox command. 996 * 997 * This is the callback function to the lpfc heart-beat mailbox command. 998 * If configured, the lpfc driver issues the heart-beat mailbox command to 999 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1000 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1001 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1002 * heart-beat outstanding state. Once the mailbox command comes back and 1003 * no error conditions detected, the heart-beat mailbox command timer is 1004 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1005 * state is cleared for the next heart-beat. If the timer expired with the 1006 * heart-beat outstanding state set, the driver will put the HBA offline. 1007 **/ 1008static void 1009lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1010{ 1011 unsigned long drvr_flag; 1012 1013 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1014 phba->hb_outstanding = 0; 1015 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1016 1017 /* Check and reset heart-beat timer is necessary */ 1018 mempool_free(pmboxq, phba->mbox_mem_pool); 1019 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1020 !(phba->link_state == LPFC_HBA_ERROR) && 1021 !(phba->pport->load_flag & FC_UNLOADING)) 1022 mod_timer(&phba->hb_tmofunc, 1023 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1024 return; 1025} 1026 1027/** 1028 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1029 * @phba: pointer to lpfc hba data structure. 1030 * 1031 * This is the actual HBA-timer timeout handler to be invoked by the worker 1032 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1033 * handler performs any periodic operations needed for the device. If such 1034 * periodic event has already been attended to either in the interrupt handler 1035 * or by processing slow-ring or fast-ring events within the HBA-timer 1036 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1037 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1038 * is configured and there is no heart-beat mailbox command outstanding, a 1039 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1040 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1041 * to offline. 1042 **/ 1043void 1044lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1045{ 1046 struct lpfc_vport **vports; 1047 LPFC_MBOXQ_t *pmboxq; 1048 struct lpfc_dmabuf *buf_ptr; 1049 int retval, i; 1050 struct lpfc_sli *psli = &phba->sli; 1051 LIST_HEAD(completions); 1052 1053 vports = lpfc_create_vport_work_array(phba); 1054 if (vports != NULL) 1055 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1056 lpfc_rcv_seq_check_edtov(vports[i]); 1057 lpfc_destroy_vport_work_array(phba, vports); 1058 1059 if ((phba->link_state == LPFC_HBA_ERROR) || 1060 (phba->pport->load_flag & FC_UNLOADING) || 1061 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1062 return; 1063 1064 spin_lock_irq(&phba->pport->work_port_lock); 1065 1066 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1067 jiffies)) { 1068 spin_unlock_irq(&phba->pport->work_port_lock); 1069 if (!phba->hb_outstanding) 1070 mod_timer(&phba->hb_tmofunc, 1071 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1072 else 1073 mod_timer(&phba->hb_tmofunc, 1074 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1075 return; 1076 } 1077 spin_unlock_irq(&phba->pport->work_port_lock); 1078 1079 if (phba->elsbuf_cnt && 1080 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1081 spin_lock_irq(&phba->hbalock); 1082 list_splice_init(&phba->elsbuf, &completions); 1083 phba->elsbuf_cnt = 0; 1084 phba->elsbuf_prev_cnt = 0; 1085 spin_unlock_irq(&phba->hbalock); 1086 1087 while (!list_empty(&completions)) { 1088 list_remove_head(&completions, buf_ptr, 1089 struct lpfc_dmabuf, list); 1090 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1091 kfree(buf_ptr); 1092 } 1093 } 1094 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1095 1096 /* If there is no heart beat outstanding, issue a heartbeat command */ 1097 if (phba->cfg_enable_hba_heartbeat) { 1098 if (!phba->hb_outstanding) { 1099 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1100 (list_empty(&psli->mboxq))) { 1101 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1102 GFP_KERNEL); 1103 if (!pmboxq) { 1104 mod_timer(&phba->hb_tmofunc, 1105 jiffies + 1106 HZ * LPFC_HB_MBOX_INTERVAL); 1107 return; 1108 } 1109 1110 lpfc_heart_beat(phba, pmboxq); 1111 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1112 pmboxq->vport = phba->pport; 1113 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1114 MBX_NOWAIT); 1115 1116 if (retval != MBX_BUSY && 1117 retval != MBX_SUCCESS) { 1118 mempool_free(pmboxq, 1119 phba->mbox_mem_pool); 1120 mod_timer(&phba->hb_tmofunc, 1121 jiffies + 1122 HZ * LPFC_HB_MBOX_INTERVAL); 1123 return; 1124 } 1125 phba->skipped_hb = 0; 1126 phba->hb_outstanding = 1; 1127 } else if (time_before_eq(phba->last_completion_time, 1128 phba->skipped_hb)) { 1129 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1130 "2857 Last completion time not " 1131 " updated in %d ms\n", 1132 jiffies_to_msecs(jiffies 1133 - phba->last_completion_time)); 1134 } else 1135 phba->skipped_hb = jiffies; 1136 1137 mod_timer(&phba->hb_tmofunc, 1138 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1139 return; 1140 } else { 1141 /* 1142 * If heart beat timeout called with hb_outstanding set 1143 * we need to give the hb mailbox cmd a chance to 1144 * complete or TMO. 1145 */ 1146 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1147 "0459 Adapter heartbeat still out" 1148 "standing:last compl time was %d ms.\n", 1149 jiffies_to_msecs(jiffies 1150 - phba->last_completion_time)); 1151 mod_timer(&phba->hb_tmofunc, 1152 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1153 } 1154 } 1155} 1156 1157/** 1158 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1159 * @phba: pointer to lpfc hba data structure. 1160 * 1161 * This routine is called to bring the HBA offline when HBA hardware error 1162 * other than Port Error 6 has been detected. 1163 **/ 1164static void 1165lpfc_offline_eratt(struct lpfc_hba *phba) 1166{ 1167 struct lpfc_sli *psli = &phba->sli; 1168 1169 spin_lock_irq(&phba->hbalock); 1170 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1171 spin_unlock_irq(&phba->hbalock); 1172 lpfc_offline_prep(phba); 1173 1174 lpfc_offline(phba); 1175 lpfc_reset_barrier(phba); 1176 spin_lock_irq(&phba->hbalock); 1177 lpfc_sli_brdreset(phba); 1178 spin_unlock_irq(&phba->hbalock); 1179 lpfc_hba_down_post(phba); 1180 lpfc_sli_brdready(phba, HS_MBRDY); 1181 lpfc_unblock_mgmt_io(phba); 1182 phba->link_state = LPFC_HBA_ERROR; 1183 return; 1184} 1185 1186/** 1187 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1188 * @phba: pointer to lpfc hba data structure. 1189 * 1190 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1191 * other than Port Error 6 has been detected. 1192 **/ 1193static void 1194lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1195{ 1196 lpfc_offline_prep(phba); 1197 lpfc_offline(phba); 1198 lpfc_sli4_brdreset(phba); 1199 lpfc_hba_down_post(phba); 1200 lpfc_sli4_post_status_check(phba); 1201 lpfc_unblock_mgmt_io(phba); 1202 phba->link_state = LPFC_HBA_ERROR; 1203} 1204 1205/** 1206 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1207 * @phba: pointer to lpfc hba data structure. 1208 * 1209 * This routine is invoked to handle the deferred HBA hardware error 1210 * conditions. This type of error is indicated by HBA by setting ER1 1211 * and another ER bit in the host status register. The driver will 1212 * wait until the ER1 bit clears before handling the error condition. 1213 **/ 1214static void 1215lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1216{ 1217 uint32_t old_host_status = phba->work_hs; 1218 struct lpfc_sli_ring *pring; 1219 struct lpfc_sli *psli = &phba->sli; 1220 1221 /* If the pci channel is offline, ignore possible errors, 1222 * since we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) { 1225 spin_lock_irq(&phba->hbalock); 1226 phba->hba_flag &= ~DEFER_ERATT; 1227 spin_unlock_irq(&phba->hbalock); 1228 return; 1229 } 1230 1231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1232 "0479 Deferred Adapter Hardware Error " 1233 "Data: x%x x%x x%x\n", 1234 phba->work_hs, 1235 phba->work_status[0], phba->work_status[1]); 1236 1237 spin_lock_irq(&phba->hbalock); 1238 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1239 spin_unlock_irq(&phba->hbalock); 1240 1241 1242 /* 1243 * Firmware stops when it triggred erratt. That could cause the I/Os 1244 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1245 * SCSI layer retry it after re-establishing link. 1246 */ 1247 pring = &psli->ring[psli->fcp_ring]; 1248 lpfc_sli_abort_iocb_ring(phba, pring); 1249 1250 /* 1251 * There was a firmware error. Take the hba offline and then 1252 * attempt to restart it. 1253 */ 1254 lpfc_offline_prep(phba); 1255 lpfc_offline(phba); 1256 1257 /* Wait for the ER1 bit to clear.*/ 1258 while (phba->work_hs & HS_FFER1) { 1259 msleep(100); 1260 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1261 phba->work_hs = UNPLUG_ERR ; 1262 break; 1263 } 1264 /* If driver is unloading let the worker thread continue */ 1265 if (phba->pport->load_flag & FC_UNLOADING) { 1266 phba->work_hs = 0; 1267 break; 1268 } 1269 } 1270 1271 /* 1272 * This is to ptrotect against a race condition in which 1273 * first write to the host attention register clear the 1274 * host status register. 1275 */ 1276 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1277 phba->work_hs = old_host_status & ~HS_FFER1; 1278 1279 spin_lock_irq(&phba->hbalock); 1280 phba->hba_flag &= ~DEFER_ERATT; 1281 spin_unlock_irq(&phba->hbalock); 1282 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1283 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1284} 1285 1286static void 1287lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1288{ 1289 struct lpfc_board_event_header board_event; 1290 struct Scsi_Host *shost; 1291 1292 board_event.event_type = FC_REG_BOARD_EVENT; 1293 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1294 shost = lpfc_shost_from_vport(phba->pport); 1295 fc_host_post_vendor_event(shost, fc_get_event_number(), 1296 sizeof(board_event), 1297 (char *) &board_event, 1298 LPFC_NL_VENDOR_ID); 1299} 1300 1301/** 1302 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1303 * @phba: pointer to lpfc hba data structure. 1304 * 1305 * This routine is invoked to handle the following HBA hardware error 1306 * conditions: 1307 * 1 - HBA error attention interrupt 1308 * 2 - DMA ring index out of range 1309 * 3 - Mailbox command came back as unknown 1310 **/ 1311static void 1312lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1313{ 1314 struct lpfc_vport *vport = phba->pport; 1315 struct lpfc_sli *psli = &phba->sli; 1316 struct lpfc_sli_ring *pring; 1317 uint32_t event_data; 1318 unsigned long temperature; 1319 struct temp_event temp_event_data; 1320 struct Scsi_Host *shost; 1321 1322 /* If the pci channel is offline, ignore possible errors, 1323 * since we cannot communicate with the pci card anyway. 1324 */ 1325 if (pci_channel_offline(phba->pcidev)) { 1326 spin_lock_irq(&phba->hbalock); 1327 phba->hba_flag &= ~DEFER_ERATT; 1328 spin_unlock_irq(&phba->hbalock); 1329 return; 1330 } 1331 1332 /* If resets are disabled then leave the HBA alone and return */ 1333 if (!phba->cfg_enable_hba_reset) 1334 return; 1335 1336 /* Send an internal error event to mgmt application */ 1337 lpfc_board_errevt_to_mgmt(phba); 1338 1339 if (phba->hba_flag & DEFER_ERATT) 1340 lpfc_handle_deferred_eratt(phba); 1341 1342 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1343 if (phba->work_hs & HS_FFER6) 1344 /* Re-establishing Link */ 1345 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1346 "1301 Re-establishing Link " 1347 "Data: x%x x%x x%x\n", 1348 phba->work_hs, phba->work_status[0], 1349 phba->work_status[1]); 1350 if (phba->work_hs & HS_FFER8) 1351 /* Device Zeroization */ 1352 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1353 "2861 Host Authentication device " 1354 "zeroization Data:x%x x%x x%x\n", 1355 phba->work_hs, phba->work_status[0], 1356 phba->work_status[1]); 1357 1358 spin_lock_irq(&phba->hbalock); 1359 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1360 spin_unlock_irq(&phba->hbalock); 1361 1362 /* 1363 * Firmware stops when it triggled erratt with HS_FFER6. 1364 * That could cause the I/Os dropped by the firmware. 1365 * Error iocb (I/O) on txcmplq and let the SCSI layer 1366 * retry it after re-establishing link. 1367 */ 1368 pring = &psli->ring[psli->fcp_ring]; 1369 lpfc_sli_abort_iocb_ring(phba, pring); 1370 1371 /* 1372 * There was a firmware error. Take the hba offline and then 1373 * attempt to restart it. 1374 */ 1375 lpfc_offline_prep(phba); 1376 lpfc_offline(phba); 1377 lpfc_sli_brdrestart(phba); 1378 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1379 lpfc_unblock_mgmt_io(phba); 1380 return; 1381 } 1382 lpfc_unblock_mgmt_io(phba); 1383 } else if (phba->work_hs & HS_CRIT_TEMP) { 1384 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1385 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1386 temp_event_data.event_code = LPFC_CRIT_TEMP; 1387 temp_event_data.data = (uint32_t)temperature; 1388 1389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1390 "0406 Adapter maximum temperature exceeded " 1391 "(%ld), taking this port offline " 1392 "Data: x%x x%x x%x\n", 1393 temperature, phba->work_hs, 1394 phba->work_status[0], phba->work_status[1]); 1395 1396 shost = lpfc_shost_from_vport(phba->pport); 1397 fc_host_post_vendor_event(shost, fc_get_event_number(), 1398 sizeof(temp_event_data), 1399 (char *) &temp_event_data, 1400 SCSI_NL_VID_TYPE_PCI 1401 | PCI_VENDOR_ID_EMULEX); 1402 1403 spin_lock_irq(&phba->hbalock); 1404 phba->over_temp_state = HBA_OVER_TEMP; 1405 spin_unlock_irq(&phba->hbalock); 1406 lpfc_offline_eratt(phba); 1407 1408 } else { 1409 /* The if clause above forces this code path when the status 1410 * failure is a value other than FFER6. Do not call the offline 1411 * twice. This is the adapter hardware error path. 1412 */ 1413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1414 "0457 Adapter Hardware Error " 1415 "Data: x%x x%x x%x\n", 1416 phba->work_hs, 1417 phba->work_status[0], phba->work_status[1]); 1418 1419 event_data = FC_REG_DUMP_EVENT; 1420 shost = lpfc_shost_from_vport(vport); 1421 fc_host_post_vendor_event(shost, fc_get_event_number(), 1422 sizeof(event_data), (char *) &event_data, 1423 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1424 1425 lpfc_offline_eratt(phba); 1426 } 1427 return; 1428} 1429 1430/** 1431 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1432 * @phba: pointer to lpfc hba data structure. 1433 * 1434 * This routine is invoked to handle the SLI4 HBA hardware error attention 1435 * conditions. 1436 **/ 1437static void 1438lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1439{ 1440 struct lpfc_vport *vport = phba->pport; 1441 uint32_t event_data; 1442 struct Scsi_Host *shost; 1443 uint32_t if_type; 1444 struct lpfc_register portstat_reg = {0}; 1445 uint32_t reg_err1, reg_err2; 1446 uint32_t uerrlo_reg, uemasklo_reg; 1447 uint32_t pci_rd_rc1, pci_rd_rc2; 1448 int rc; 1449 1450 /* If the pci channel is offline, ignore possible errors, since 1451 * we cannot communicate with the pci card anyway. 1452 */ 1453 if (pci_channel_offline(phba->pcidev)) 1454 return; 1455 /* If resets are disabled then leave the HBA alone and return */ 1456 if (!phba->cfg_enable_hba_reset) 1457 return; 1458 1459 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1460 switch (if_type) { 1461 case LPFC_SLI_INTF_IF_TYPE_0: 1462 pci_rd_rc1 = lpfc_readl( 1463 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1464 &uerrlo_reg); 1465 pci_rd_rc2 = lpfc_readl( 1466 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1467 &uemasklo_reg); 1468 /* consider PCI bus read error as pci_channel_offline */ 1469 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1470 return; 1471 lpfc_sli4_offline_eratt(phba); 1472 break; 1473 case LPFC_SLI_INTF_IF_TYPE_2: 1474 pci_rd_rc1 = lpfc_readl( 1475 phba->sli4_hba.u.if_type2.STATUSregaddr, 1476 &portstat_reg.word0); 1477 /* consider PCI bus read error as pci_channel_offline */ 1478 if (pci_rd_rc1 == -EIO) { 1479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1480 "3151 PCI bus read access failure: x%x\n", 1481 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1482 return; 1483 } 1484 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1485 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1486 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1487 /* TODO: Register for Overtemp async events. */ 1488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1489 "2889 Port Overtemperature event, " 1490 "taking port offline\n"); 1491 spin_lock_irq(&phba->hbalock); 1492 phba->over_temp_state = HBA_OVER_TEMP; 1493 spin_unlock_irq(&phba->hbalock); 1494 lpfc_sli4_offline_eratt(phba); 1495 break; 1496 } 1497 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1498 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1500 "3143 Port Down: Firmware Restarted\n"); 1501 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1502 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1504 "3144 Port Down: Debug Dump\n"); 1505 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1506 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1508 "3145 Port Down: Provisioning\n"); 1509 /* 1510 * On error status condition, driver need to wait for port 1511 * ready before performing reset. 1512 */ 1513 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1514 if (!rc) { 1515 /* need reset: attempt for port recovery */ 1516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1517 "2887 Reset Needed: Attempting Port " 1518 "Recovery...\n"); 1519 lpfc_offline_prep(phba); 1520 lpfc_offline(phba); 1521 lpfc_sli_brdrestart(phba); 1522 if (lpfc_online(phba) == 0) { 1523 lpfc_unblock_mgmt_io(phba); 1524 /* don't report event on forced debug dump */ 1525 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1526 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1527 return; 1528 else 1529 break; 1530 } 1531 /* fall through for not able to recover */ 1532 } 1533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1534 "3152 Unrecoverable error, bring the port " 1535 "offline\n"); 1536 lpfc_sli4_offline_eratt(phba); 1537 break; 1538 case LPFC_SLI_INTF_IF_TYPE_1: 1539 default: 1540 break; 1541 } 1542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1543 "3123 Report dump event to upper layer\n"); 1544 /* Send an internal error event to mgmt application */ 1545 lpfc_board_errevt_to_mgmt(phba); 1546 1547 event_data = FC_REG_DUMP_EVENT; 1548 shost = lpfc_shost_from_vport(vport); 1549 fc_host_post_vendor_event(shost, fc_get_event_number(), 1550 sizeof(event_data), (char *) &event_data, 1551 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1552} 1553 1554/** 1555 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1556 * @phba: pointer to lpfc HBA data structure. 1557 * 1558 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1559 * routine from the API jump table function pointer from the lpfc_hba struct. 1560 * 1561 * Return codes 1562 * 0 - success. 1563 * Any other value - error. 1564 **/ 1565void 1566lpfc_handle_eratt(struct lpfc_hba *phba) 1567{ 1568 (*phba->lpfc_handle_eratt)(phba); 1569} 1570 1571/** 1572 * lpfc_handle_latt - The HBA link event handler 1573 * @phba: pointer to lpfc hba data structure. 1574 * 1575 * This routine is invoked from the worker thread to handle a HBA host 1576 * attention link event. 1577 **/ 1578void 1579lpfc_handle_latt(struct lpfc_hba *phba) 1580{ 1581 struct lpfc_vport *vport = phba->pport; 1582 struct lpfc_sli *psli = &phba->sli; 1583 LPFC_MBOXQ_t *pmb; 1584 volatile uint32_t control; 1585 struct lpfc_dmabuf *mp; 1586 int rc = 0; 1587 1588 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1589 if (!pmb) { 1590 rc = 1; 1591 goto lpfc_handle_latt_err_exit; 1592 } 1593 1594 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1595 if (!mp) { 1596 rc = 2; 1597 goto lpfc_handle_latt_free_pmb; 1598 } 1599 1600 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1601 if (!mp->virt) { 1602 rc = 3; 1603 goto lpfc_handle_latt_free_mp; 1604 } 1605 1606 /* Cleanup any outstanding ELS commands */ 1607 lpfc_els_flush_all_cmd(phba); 1608 1609 psli->slistat.link_event++; 1610 lpfc_read_topology(phba, pmb, mp); 1611 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1612 pmb->vport = vport; 1613 /* Block ELS IOCBs until we have processed this mbox command */ 1614 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1615 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1616 if (rc == MBX_NOT_FINISHED) { 1617 rc = 4; 1618 goto lpfc_handle_latt_free_mbuf; 1619 } 1620 1621 /* Clear Link Attention in HA REG */ 1622 spin_lock_irq(&phba->hbalock); 1623 writel(HA_LATT, phba->HAregaddr); 1624 readl(phba->HAregaddr); /* flush */ 1625 spin_unlock_irq(&phba->hbalock); 1626 1627 return; 1628 1629lpfc_handle_latt_free_mbuf: 1630 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1631 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1632lpfc_handle_latt_free_mp: 1633 kfree(mp); 1634lpfc_handle_latt_free_pmb: 1635 mempool_free(pmb, phba->mbox_mem_pool); 1636lpfc_handle_latt_err_exit: 1637 /* Enable Link attention interrupts */ 1638 spin_lock_irq(&phba->hbalock); 1639 psli->sli_flag |= LPFC_PROCESS_LA; 1640 control = readl(phba->HCregaddr); 1641 control |= HC_LAINT_ENA; 1642 writel(control, phba->HCregaddr); 1643 readl(phba->HCregaddr); /* flush */ 1644 1645 /* Clear Link Attention in HA REG */ 1646 writel(HA_LATT, phba->HAregaddr); 1647 readl(phba->HAregaddr); /* flush */ 1648 spin_unlock_irq(&phba->hbalock); 1649 lpfc_linkdown(phba); 1650 phba->link_state = LPFC_HBA_ERROR; 1651 1652 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1653 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1654 1655 return; 1656} 1657 1658/** 1659 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1660 * @phba: pointer to lpfc hba data structure. 1661 * @vpd: pointer to the vital product data. 1662 * @len: length of the vital product data in bytes. 1663 * 1664 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1665 * an array of characters. In this routine, the ModelName, ProgramType, and 1666 * ModelDesc, etc. fields of the phba data structure will be populated. 1667 * 1668 * Return codes 1669 * 0 - pointer to the VPD passed in is NULL 1670 * 1 - success 1671 **/ 1672int 1673lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1674{ 1675 uint8_t lenlo, lenhi; 1676 int Length; 1677 int i, j; 1678 int finished = 0; 1679 int index = 0; 1680 1681 if (!vpd) 1682 return 0; 1683 1684 /* Vital Product */ 1685 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1686 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1687 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1688 (uint32_t) vpd[3]); 1689 while (!finished && (index < (len - 4))) { 1690 switch (vpd[index]) { 1691 case 0x82: 1692 case 0x91: 1693 index += 1; 1694 lenlo = vpd[index]; 1695 index += 1; 1696 lenhi = vpd[index]; 1697 index += 1; 1698 i = ((((unsigned short)lenhi) << 8) + lenlo); 1699 index += i; 1700 break; 1701 case 0x90: 1702 index += 1; 1703 lenlo = vpd[index]; 1704 index += 1; 1705 lenhi = vpd[index]; 1706 index += 1; 1707 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1708 if (Length > len - index) 1709 Length = len - index; 1710 while (Length > 0) { 1711 /* Look for Serial Number */ 1712 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1713 index += 2; 1714 i = vpd[index]; 1715 index += 1; 1716 j = 0; 1717 Length -= (3+i); 1718 while(i--) { 1719 phba->SerialNumber[j++] = vpd[index++]; 1720 if (j == 31) 1721 break; 1722 } 1723 phba->SerialNumber[j] = 0; 1724 continue; 1725 } 1726 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1727 phba->vpd_flag |= VPD_MODEL_DESC; 1728 index += 2; 1729 i = vpd[index]; 1730 index += 1; 1731 j = 0; 1732 Length -= (3+i); 1733 while(i--) { 1734 phba->ModelDesc[j++] = vpd[index++]; 1735 if (j == 255) 1736 break; 1737 } 1738 phba->ModelDesc[j] = 0; 1739 continue; 1740 } 1741 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1742 phba->vpd_flag |= VPD_MODEL_NAME; 1743 index += 2; 1744 i = vpd[index]; 1745 index += 1; 1746 j = 0; 1747 Length -= (3+i); 1748 while(i--) { 1749 phba->ModelName[j++] = vpd[index++]; 1750 if (j == 79) 1751 break; 1752 } 1753 phba->ModelName[j] = 0; 1754 continue; 1755 } 1756 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1757 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1758 index += 2; 1759 i = vpd[index]; 1760 index += 1; 1761 j = 0; 1762 Length -= (3+i); 1763 while(i--) { 1764 phba->ProgramType[j++] = vpd[index++]; 1765 if (j == 255) 1766 break; 1767 } 1768 phba->ProgramType[j] = 0; 1769 continue; 1770 } 1771 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1772 phba->vpd_flag |= VPD_PORT; 1773 index += 2; 1774 i = vpd[index]; 1775 index += 1; 1776 j = 0; 1777 Length -= (3+i); 1778 while(i--) { 1779 if ((phba->sli_rev == LPFC_SLI_REV4) && 1780 (phba->sli4_hba.pport_name_sta == 1781 LPFC_SLI4_PPNAME_GET)) { 1782 j++; 1783 index++; 1784 } else 1785 phba->Port[j++] = vpd[index++]; 1786 if (j == 19) 1787 break; 1788 } 1789 if ((phba->sli_rev != LPFC_SLI_REV4) || 1790 (phba->sli4_hba.pport_name_sta == 1791 LPFC_SLI4_PPNAME_NON)) 1792 phba->Port[j] = 0; 1793 continue; 1794 } 1795 else { 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 index += i; 1800 Length -= (3 + i); 1801 } 1802 } 1803 finished = 0; 1804 break; 1805 case 0x78: 1806 finished = 1; 1807 break; 1808 default: 1809 index ++; 1810 break; 1811 } 1812 } 1813 1814 return(1); 1815} 1816 1817/** 1818 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1819 * @phba: pointer to lpfc hba data structure. 1820 * @mdp: pointer to the data structure to hold the derived model name. 1821 * @descp: pointer to the data structure to hold the derived description. 1822 * 1823 * This routine retrieves HBA's description based on its registered PCI device 1824 * ID. The @descp passed into this function points to an array of 256 chars. It 1825 * shall be returned with the model name, maximum speed, and the host bus type. 1826 * The @mdp passed into this function points to an array of 80 chars. When the 1827 * function returns, the @mdp will be filled with the model name. 1828 **/ 1829static void 1830lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1831{ 1832 lpfc_vpd_t *vp; 1833 uint16_t dev_id = phba->pcidev->device; 1834 int max_speed; 1835 int GE = 0; 1836 int oneConnect = 0; /* default is not a oneConnect */ 1837 struct { 1838 char *name; 1839 char *bus; 1840 char *function; 1841 } m = {"<Unknown>", "", ""}; 1842 1843 if (mdp && mdp[0] != '\0' 1844 && descp && descp[0] != '\0') 1845 return; 1846 1847 if (phba->lmt & LMT_16Gb) 1848 max_speed = 16; 1849 else if (phba->lmt & LMT_10Gb) 1850 max_speed = 10; 1851 else if (phba->lmt & LMT_8Gb) 1852 max_speed = 8; 1853 else if (phba->lmt & LMT_4Gb) 1854 max_speed = 4; 1855 else if (phba->lmt & LMT_2Gb) 1856 max_speed = 2; 1857 else 1858 max_speed = 1; 1859 1860 vp = &phba->vpd; 1861 1862 switch (dev_id) { 1863 case PCI_DEVICE_ID_FIREFLY: 1864 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1865 break; 1866 case PCI_DEVICE_ID_SUPERFLY: 1867 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1868 m = (typeof(m)){"LP7000", "PCI", 1869 "Fibre Channel Adapter"}; 1870 else 1871 m = (typeof(m)){"LP7000E", "PCI", 1872 "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_DRAGONFLY: 1875 m = (typeof(m)){"LP8000", "PCI", 1876 "Fibre Channel Adapter"}; 1877 break; 1878 case PCI_DEVICE_ID_CENTAUR: 1879 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1880 m = (typeof(m)){"LP9002", "PCI", 1881 "Fibre Channel Adapter"}; 1882 else 1883 m = (typeof(m)){"LP9000", "PCI", 1884 "Fibre Channel Adapter"}; 1885 break; 1886 case PCI_DEVICE_ID_RFLY: 1887 m = (typeof(m)){"LP952", "PCI", 1888 "Fibre Channel Adapter"}; 1889 break; 1890 case PCI_DEVICE_ID_PEGASUS: 1891 m = (typeof(m)){"LP9802", "PCI-X", 1892 "Fibre Channel Adapter"}; 1893 break; 1894 case PCI_DEVICE_ID_THOR: 1895 m = (typeof(m)){"LP10000", "PCI-X", 1896 "Fibre Channel Adapter"}; 1897 break; 1898 case PCI_DEVICE_ID_VIPER: 1899 m = (typeof(m)){"LPX1000", "PCI-X", 1900 "Fibre Channel Adapter"}; 1901 break; 1902 case PCI_DEVICE_ID_PFLY: 1903 m = (typeof(m)){"LP982", "PCI-X", 1904 "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_TFLY: 1907 m = (typeof(m)){"LP1050", "PCI-X", 1908 "Fibre Channel Adapter"}; 1909 break; 1910 case PCI_DEVICE_ID_HELIOS: 1911 m = (typeof(m)){"LP11000", "PCI-X2", 1912 "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_HELIOS_SCSP: 1915 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1916 "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_HELIOS_DCSP: 1919 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1920 "Fibre Channel Adapter"}; 1921 break; 1922 case PCI_DEVICE_ID_NEPTUNE: 1923 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1924 break; 1925 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1926 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1929 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1930 break; 1931 case PCI_DEVICE_ID_BMID: 1932 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_BSMB: 1935 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1936 break; 1937 case PCI_DEVICE_ID_ZEPHYR: 1938 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1939 break; 1940 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1941 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1942 break; 1943 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1944 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1945 GE = 1; 1946 break; 1947 case PCI_DEVICE_ID_ZMID: 1948 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1949 break; 1950 case PCI_DEVICE_ID_ZSMB: 1951 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1952 break; 1953 case PCI_DEVICE_ID_LP101: 1954 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1955 break; 1956 case PCI_DEVICE_ID_LP10000S: 1957 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1958 break; 1959 case PCI_DEVICE_ID_LP11000S: 1960 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1961 break; 1962 case PCI_DEVICE_ID_LPE11000S: 1963 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_SAT: 1966 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_SAT_MID: 1969 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_SAT_SMB: 1972 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1973 break; 1974 case PCI_DEVICE_ID_SAT_DCSP: 1975 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_SAT_SCSP: 1978 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_SAT_S: 1981 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_HORNET: 1984 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1985 GE = 1; 1986 break; 1987 case PCI_DEVICE_ID_PROTEUS_VF: 1988 m = (typeof(m)){"LPev12000", "PCIe IOV", 1989 "Fibre Channel Adapter"}; 1990 break; 1991 case PCI_DEVICE_ID_PROTEUS_PF: 1992 m = (typeof(m)){"LPev12000", "PCIe IOV", 1993 "Fibre Channel Adapter"}; 1994 break; 1995 case PCI_DEVICE_ID_PROTEUS_S: 1996 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1997 "Fibre Channel Adapter"}; 1998 break; 1999 case PCI_DEVICE_ID_TIGERSHARK: 2000 oneConnect = 1; 2001 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2002 break; 2003 case PCI_DEVICE_ID_TOMCAT: 2004 oneConnect = 1; 2005 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2006 break; 2007 case PCI_DEVICE_ID_FALCON: 2008 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2009 "EmulexSecure Fibre"}; 2010 break; 2011 case PCI_DEVICE_ID_BALIUS: 2012 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2013 "Fibre Channel Adapter"}; 2014 break; 2015 case PCI_DEVICE_ID_LANCER_FC: 2016 case PCI_DEVICE_ID_LANCER_FC_VF: 2017 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2018 break; 2019 case PCI_DEVICE_ID_LANCER_FCOE: 2020 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2021 oneConnect = 1; 2022 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2023 break; 2024 default: 2025 m = (typeof(m)){"Unknown", "", ""}; 2026 break; 2027 } 2028 2029 if (mdp && mdp[0] == '\0') 2030 snprintf(mdp, 79,"%s", m.name); 2031 /* 2032 * oneConnect hba requires special processing, they are all initiators 2033 * and we put the port number on the end 2034 */ 2035 if (descp && descp[0] == '\0') { 2036 if (oneConnect) 2037 snprintf(descp, 255, 2038 "Emulex OneConnect %s, %s Initiator, Port %s", 2039 m.name, m.function, 2040 phba->Port); 2041 else 2042 snprintf(descp, 255, 2043 "Emulex %s %d%s %s %s", 2044 m.name, max_speed, (GE) ? "GE" : "Gb", 2045 m.bus, m.function); 2046 } 2047} 2048 2049/** 2050 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2051 * @phba: pointer to lpfc hba data structure. 2052 * @pring: pointer to a IOCB ring. 2053 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2054 * 2055 * This routine posts a given number of IOCBs with the associated DMA buffer 2056 * descriptors specified by the cnt argument to the given IOCB ring. 2057 * 2058 * Return codes 2059 * The number of IOCBs NOT able to be posted to the IOCB ring. 2060 **/ 2061int 2062lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2063{ 2064 IOCB_t *icmd; 2065 struct lpfc_iocbq *iocb; 2066 struct lpfc_dmabuf *mp1, *mp2; 2067 2068 cnt += pring->missbufcnt; 2069 2070 /* While there are buffers to post */ 2071 while (cnt > 0) { 2072 /* Allocate buffer for command iocb */ 2073 iocb = lpfc_sli_get_iocbq(phba); 2074 if (iocb == NULL) { 2075 pring->missbufcnt = cnt; 2076 return cnt; 2077 } 2078 icmd = &iocb->iocb; 2079 2080 /* 2 buffers can be posted per command */ 2081 /* Allocate buffer to post */ 2082 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2083 if (mp1) 2084 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2085 if (!mp1 || !mp1->virt) { 2086 kfree(mp1); 2087 lpfc_sli_release_iocbq(phba, iocb); 2088 pring->missbufcnt = cnt; 2089 return cnt; 2090 } 2091 2092 INIT_LIST_HEAD(&mp1->list); 2093 /* Allocate buffer to post */ 2094 if (cnt > 1) { 2095 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2096 if (mp2) 2097 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2098 &mp2->phys); 2099 if (!mp2 || !mp2->virt) { 2100 kfree(mp2); 2101 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2102 kfree(mp1); 2103 lpfc_sli_release_iocbq(phba, iocb); 2104 pring->missbufcnt = cnt; 2105 return cnt; 2106 } 2107 2108 INIT_LIST_HEAD(&mp2->list); 2109 } else { 2110 mp2 = NULL; 2111 } 2112 2113 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2114 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2115 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2116 icmd->ulpBdeCount = 1; 2117 cnt--; 2118 if (mp2) { 2119 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2120 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2121 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2122 cnt--; 2123 icmd->ulpBdeCount = 2; 2124 } 2125 2126 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2127 icmd->ulpLe = 1; 2128 2129 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2130 IOCB_ERROR) { 2131 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2132 kfree(mp1); 2133 cnt++; 2134 if (mp2) { 2135 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2136 kfree(mp2); 2137 cnt++; 2138 } 2139 lpfc_sli_release_iocbq(phba, iocb); 2140 pring->missbufcnt = cnt; 2141 return cnt; 2142 } 2143 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2144 if (mp2) 2145 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2146 } 2147 pring->missbufcnt = 0; 2148 return 0; 2149} 2150 2151/** 2152 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2153 * @phba: pointer to lpfc hba data structure. 2154 * 2155 * This routine posts initial receive IOCB buffers to the ELS ring. The 2156 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2157 * set to 64 IOCBs. 2158 * 2159 * Return codes 2160 * 0 - success (currently always success) 2161 **/ 2162static int 2163lpfc_post_rcv_buf(struct lpfc_hba *phba) 2164{ 2165 struct lpfc_sli *psli = &phba->sli; 2166 2167 /* Ring 0, ELS / CT buffers */ 2168 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2169 /* Ring 2 - FCP no buffers needed */ 2170 2171 return 0; 2172} 2173 2174#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2175 2176/** 2177 * lpfc_sha_init - Set up initial array of hash table entries 2178 * @HashResultPointer: pointer to an array as hash table. 2179 * 2180 * This routine sets up the initial values to the array of hash table entries 2181 * for the LC HBAs. 2182 **/ 2183static void 2184lpfc_sha_init(uint32_t * HashResultPointer) 2185{ 2186 HashResultPointer[0] = 0x67452301; 2187 HashResultPointer[1] = 0xEFCDAB89; 2188 HashResultPointer[2] = 0x98BADCFE; 2189 HashResultPointer[3] = 0x10325476; 2190 HashResultPointer[4] = 0xC3D2E1F0; 2191} 2192 2193/** 2194 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2195 * @HashResultPointer: pointer to an initial/result hash table. 2196 * @HashWorkingPointer: pointer to an working hash table. 2197 * 2198 * This routine iterates an initial hash table pointed by @HashResultPointer 2199 * with the values from the working hash table pointeed by @HashWorkingPointer. 2200 * The results are putting back to the initial hash table, returned through 2201 * the @HashResultPointer as the result hash table. 2202 **/ 2203static void 2204lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2205{ 2206 int t; 2207 uint32_t TEMP; 2208 uint32_t A, B, C, D, E; 2209 t = 16; 2210 do { 2211 HashWorkingPointer[t] = 2212 S(1, 2213 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2214 8] ^ 2215 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2216 } while (++t <= 79); 2217 t = 0; 2218 A = HashResultPointer[0]; 2219 B = HashResultPointer[1]; 2220 C = HashResultPointer[2]; 2221 D = HashResultPointer[3]; 2222 E = HashResultPointer[4]; 2223 2224 do { 2225 if (t < 20) { 2226 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2227 } else if (t < 40) { 2228 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2229 } else if (t < 60) { 2230 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2231 } else { 2232 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2233 } 2234 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2235 E = D; 2236 D = C; 2237 C = S(30, B); 2238 B = A; 2239 A = TEMP; 2240 } while (++t <= 79); 2241 2242 HashResultPointer[0] += A; 2243 HashResultPointer[1] += B; 2244 HashResultPointer[2] += C; 2245 HashResultPointer[3] += D; 2246 HashResultPointer[4] += E; 2247 2248} 2249 2250/** 2251 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2252 * @RandomChallenge: pointer to the entry of host challenge random number array. 2253 * @HashWorking: pointer to the entry of the working hash array. 2254 * 2255 * This routine calculates the working hash array referred by @HashWorking 2256 * from the challenge random numbers associated with the host, referred by 2257 * @RandomChallenge. The result is put into the entry of the working hash 2258 * array and returned by reference through @HashWorking. 2259 **/ 2260static void 2261lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2262{ 2263 *HashWorking = (*RandomChallenge ^ *HashWorking); 2264} 2265 2266/** 2267 * lpfc_hba_init - Perform special handling for LC HBA initialization 2268 * @phba: pointer to lpfc hba data structure. 2269 * @hbainit: pointer to an array of unsigned 32-bit integers. 2270 * 2271 * This routine performs the special handling for LC HBA initialization. 2272 **/ 2273void 2274lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2275{ 2276 int t; 2277 uint32_t *HashWorking; 2278 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2279 2280 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2281 if (!HashWorking) 2282 return; 2283 2284 HashWorking[0] = HashWorking[78] = *pwwnn++; 2285 HashWorking[1] = HashWorking[79] = *pwwnn; 2286 2287 for (t = 0; t < 7; t++) 2288 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2289 2290 lpfc_sha_init(hbainit); 2291 lpfc_sha_iterate(hbainit, HashWorking); 2292 kfree(HashWorking); 2293} 2294 2295/** 2296 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2297 * @vport: pointer to a virtual N_Port data structure. 2298 * 2299 * This routine performs the necessary cleanups before deleting the @vport. 2300 * It invokes the discovery state machine to perform necessary state 2301 * transitions and to release the ndlps associated with the @vport. Note, 2302 * the physical port is treated as @vport 0. 2303 **/ 2304void 2305lpfc_cleanup(struct lpfc_vport *vport) 2306{ 2307 struct lpfc_hba *phba = vport->phba; 2308 struct lpfc_nodelist *ndlp, *next_ndlp; 2309 int i = 0; 2310 2311 if (phba->link_state > LPFC_LINK_DOWN) 2312 lpfc_port_link_failure(vport); 2313 2314 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2315 if (!NLP_CHK_NODE_ACT(ndlp)) { 2316 ndlp = lpfc_enable_node(vport, ndlp, 2317 NLP_STE_UNUSED_NODE); 2318 if (!ndlp) 2319 continue; 2320 spin_lock_irq(&phba->ndlp_lock); 2321 NLP_SET_FREE_REQ(ndlp); 2322 spin_unlock_irq(&phba->ndlp_lock); 2323 /* Trigger the release of the ndlp memory */ 2324 lpfc_nlp_put(ndlp); 2325 continue; 2326 } 2327 spin_lock_irq(&phba->ndlp_lock); 2328 if (NLP_CHK_FREE_REQ(ndlp)) { 2329 /* The ndlp should not be in memory free mode already */ 2330 spin_unlock_irq(&phba->ndlp_lock); 2331 continue; 2332 } else 2333 /* Indicate request for freeing ndlp memory */ 2334 NLP_SET_FREE_REQ(ndlp); 2335 spin_unlock_irq(&phba->ndlp_lock); 2336 2337 if (vport->port_type != LPFC_PHYSICAL_PORT && 2338 ndlp->nlp_DID == Fabric_DID) { 2339 /* Just free up ndlp with Fabric_DID for vports */ 2340 lpfc_nlp_put(ndlp); 2341 continue; 2342 } 2343 2344 if (ndlp->nlp_type & NLP_FABRIC) 2345 lpfc_disc_state_machine(vport, ndlp, NULL, 2346 NLP_EVT_DEVICE_RECOVERY); 2347 2348 lpfc_disc_state_machine(vport, ndlp, NULL, 2349 NLP_EVT_DEVICE_RM); 2350 2351 } 2352 2353 /* At this point, ALL ndlp's should be gone 2354 * because of the previous NLP_EVT_DEVICE_RM. 2355 * Lets wait for this to happen, if needed. 2356 */ 2357 while (!list_empty(&vport->fc_nodes)) { 2358 if (i++ > 3000) { 2359 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2360 "0233 Nodelist not empty\n"); 2361 list_for_each_entry_safe(ndlp, next_ndlp, 2362 &vport->fc_nodes, nlp_listp) { 2363 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2364 LOG_NODE, 2365 "0282 did:x%x ndlp:x%p " 2366 "usgmap:x%x refcnt:%d\n", 2367 ndlp->nlp_DID, (void *)ndlp, 2368 ndlp->nlp_usg_map, 2369 atomic_read( 2370 &ndlp->kref.refcount)); 2371 } 2372 break; 2373 } 2374 2375 /* Wait for any activity on ndlps to settle */ 2376 msleep(10); 2377 } 2378 lpfc_cleanup_vports_rrqs(vport, NULL); 2379} 2380 2381/** 2382 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2383 * @vport: pointer to a virtual N_Port data structure. 2384 * 2385 * This routine stops all the timers associated with a @vport. This function 2386 * is invoked before disabling or deleting a @vport. Note that the physical 2387 * port is treated as @vport 0. 2388 **/ 2389void 2390lpfc_stop_vport_timers(struct lpfc_vport *vport) 2391{ 2392 del_timer_sync(&vport->els_tmofunc); 2393 del_timer_sync(&vport->fc_fdmitmo); 2394 del_timer_sync(&vport->delayed_disc_tmo); 2395 lpfc_can_disctmo(vport); 2396 return; 2397} 2398 2399/** 2400 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2401 * @phba: pointer to lpfc hba data structure. 2402 * 2403 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2404 * caller of this routine should already hold the host lock. 2405 **/ 2406void 2407__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2408{ 2409 /* Clear pending FCF rediscovery wait flag */ 2410 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2411 2412 /* Now, try to stop the timer */ 2413 del_timer(&phba->fcf.redisc_wait); 2414} 2415 2416/** 2417 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2418 * @phba: pointer to lpfc hba data structure. 2419 * 2420 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2421 * checks whether the FCF rediscovery wait timer is pending with the host 2422 * lock held before proceeding with disabling the timer and clearing the 2423 * wait timer pendig flag. 2424 **/ 2425void 2426lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2427{ 2428 spin_lock_irq(&phba->hbalock); 2429 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2430 /* FCF rediscovery timer already fired or stopped */ 2431 spin_unlock_irq(&phba->hbalock); 2432 return; 2433 } 2434 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2435 /* Clear failover in progress flags */ 2436 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2437 spin_unlock_irq(&phba->hbalock); 2438} 2439 2440/** 2441 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2442 * @phba: pointer to lpfc hba data structure. 2443 * 2444 * This routine stops all the timers associated with a HBA. This function is 2445 * invoked before either putting a HBA offline or unloading the driver. 2446 **/ 2447void 2448lpfc_stop_hba_timers(struct lpfc_hba *phba) 2449{ 2450 lpfc_stop_vport_timers(phba->pport); 2451 del_timer_sync(&phba->sli.mbox_tmo); 2452 del_timer_sync(&phba->fabric_block_timer); 2453 del_timer_sync(&phba->eratt_poll); 2454 del_timer_sync(&phba->hb_tmofunc); 2455 if (phba->sli_rev == LPFC_SLI_REV4) { 2456 del_timer_sync(&phba->rrq_tmr); 2457 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2458 } 2459 phba->hb_outstanding = 0; 2460 2461 switch (phba->pci_dev_grp) { 2462 case LPFC_PCI_DEV_LP: 2463 /* Stop any LightPulse device specific driver timers */ 2464 del_timer_sync(&phba->fcp_poll_timer); 2465 break; 2466 case LPFC_PCI_DEV_OC: 2467 /* Stop any OneConnect device sepcific driver timers */ 2468 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2469 break; 2470 default: 2471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2472 "0297 Invalid device group (x%x)\n", 2473 phba->pci_dev_grp); 2474 break; 2475 } 2476 return; 2477} 2478 2479/** 2480 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2481 * @phba: pointer to lpfc hba data structure. 2482 * 2483 * This routine marks a HBA's management interface as blocked. Once the HBA's 2484 * management interface is marked as blocked, all the user space access to 2485 * the HBA, whether they are from sysfs interface or libdfc interface will 2486 * all be blocked. The HBA is set to block the management interface when the 2487 * driver prepares the HBA interface for online or offline. 2488 **/ 2489static void 2490lpfc_block_mgmt_io(struct lpfc_hba * phba) 2491{ 2492 unsigned long iflag; 2493 uint8_t actcmd = MBX_HEARTBEAT; 2494 unsigned long timeout; 2495 2496 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2497 spin_lock_irqsave(&phba->hbalock, iflag); 2498 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2499 if (phba->sli.mbox_active) { 2500 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2501 /* Determine how long we might wait for the active mailbox 2502 * command to be gracefully completed by firmware. 2503 */ 2504 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2505 phba->sli.mbox_active) * 1000) + jiffies; 2506 } 2507 spin_unlock_irqrestore(&phba->hbalock, iflag); 2508 2509 /* Wait for the outstnading mailbox command to complete */ 2510 while (phba->sli.mbox_active) { 2511 /* Check active mailbox complete status every 2ms */ 2512 msleep(2); 2513 if (time_after(jiffies, timeout)) { 2514 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2515 "2813 Mgmt IO is Blocked %x " 2516 "- mbox cmd %x still active\n", 2517 phba->sli.sli_flag, actcmd); 2518 break; 2519 } 2520 } 2521} 2522 2523/** 2524 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2525 * @phba: pointer to lpfc hba data structure. 2526 * 2527 * Allocate RPIs for all active remote nodes. This is needed whenever 2528 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2529 * is to fixup the temporary rpi assignments. 2530 **/ 2531void 2532lpfc_sli4_node_prep(struct lpfc_hba *phba) 2533{ 2534 struct lpfc_nodelist *ndlp, *next_ndlp; 2535 struct lpfc_vport **vports; 2536 int i; 2537 2538 if (phba->sli_rev != LPFC_SLI_REV4) 2539 return; 2540 2541 vports = lpfc_create_vport_work_array(phba); 2542 if (vports != NULL) { 2543 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2544 if (vports[i]->load_flag & FC_UNLOADING) 2545 continue; 2546 2547 list_for_each_entry_safe(ndlp, next_ndlp, 2548 &vports[i]->fc_nodes, 2549 nlp_listp) { 2550 if (NLP_CHK_NODE_ACT(ndlp)) 2551 ndlp->nlp_rpi = 2552 lpfc_sli4_alloc_rpi(phba); 2553 } 2554 } 2555 } 2556 lpfc_destroy_vport_work_array(phba, vports); 2557} 2558 2559/** 2560 * lpfc_online - Initialize and bring a HBA online 2561 * @phba: pointer to lpfc hba data structure. 2562 * 2563 * This routine initializes the HBA and brings a HBA online. During this 2564 * process, the management interface is blocked to prevent user space access 2565 * to the HBA interfering with the driver initialization. 2566 * 2567 * Return codes 2568 * 0 - successful 2569 * 1 - failed 2570 **/ 2571int 2572lpfc_online(struct lpfc_hba *phba) 2573{ 2574 struct lpfc_vport *vport; 2575 struct lpfc_vport **vports; 2576 int i; 2577 2578 if (!phba) 2579 return 0; 2580 vport = phba->pport; 2581 2582 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2583 return 0; 2584 2585 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2586 "0458 Bring Adapter online\n"); 2587 2588 lpfc_block_mgmt_io(phba); 2589 2590 if (!lpfc_sli_queue_setup(phba)) { 2591 lpfc_unblock_mgmt_io(phba); 2592 return 1; 2593 } 2594 2595 if (phba->sli_rev == LPFC_SLI_REV4) { 2596 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2597 lpfc_unblock_mgmt_io(phba); 2598 return 1; 2599 } 2600 } else { 2601 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2602 lpfc_unblock_mgmt_io(phba); 2603 return 1; 2604 } 2605 } 2606 2607 vports = lpfc_create_vport_work_array(phba); 2608 if (vports != NULL) 2609 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2610 struct Scsi_Host *shost; 2611 shost = lpfc_shost_from_vport(vports[i]); 2612 spin_lock_irq(shost->host_lock); 2613 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2614 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2615 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2616 if (phba->sli_rev == LPFC_SLI_REV4) 2617 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2618 spin_unlock_irq(shost->host_lock); 2619 } 2620 lpfc_destroy_vport_work_array(phba, vports); 2621 2622 lpfc_unblock_mgmt_io(phba); 2623 return 0; 2624} 2625 2626/** 2627 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2628 * @phba: pointer to lpfc hba data structure. 2629 * 2630 * This routine marks a HBA's management interface as not blocked. Once the 2631 * HBA's management interface is marked as not blocked, all the user space 2632 * access to the HBA, whether they are from sysfs interface or libdfc 2633 * interface will be allowed. The HBA is set to block the management interface 2634 * when the driver prepares the HBA interface for online or offline and then 2635 * set to unblock the management interface afterwards. 2636 **/ 2637void 2638lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2639{ 2640 unsigned long iflag; 2641 2642 spin_lock_irqsave(&phba->hbalock, iflag); 2643 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2644 spin_unlock_irqrestore(&phba->hbalock, iflag); 2645} 2646 2647/** 2648 * lpfc_offline_prep - Prepare a HBA to be brought offline 2649 * @phba: pointer to lpfc hba data structure. 2650 * 2651 * This routine is invoked to prepare a HBA to be brought offline. It performs 2652 * unregistration login to all the nodes on all vports and flushes the mailbox 2653 * queue to make it ready to be brought offline. 2654 **/ 2655void 2656lpfc_offline_prep(struct lpfc_hba * phba) 2657{ 2658 struct lpfc_vport *vport = phba->pport; 2659 struct lpfc_nodelist *ndlp, *next_ndlp; 2660 struct lpfc_vport **vports; 2661 struct Scsi_Host *shost; 2662 int i; 2663 2664 if (vport->fc_flag & FC_OFFLINE_MODE) 2665 return; 2666 2667 lpfc_block_mgmt_io(phba); 2668 2669 lpfc_linkdown(phba); 2670 2671 /* Issue an unreg_login to all nodes on all vports */ 2672 vports = lpfc_create_vport_work_array(phba); 2673 if (vports != NULL) { 2674 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2675 if (vports[i]->load_flag & FC_UNLOADING) 2676 continue; 2677 shost = lpfc_shost_from_vport(vports[i]); 2678 spin_lock_irq(shost->host_lock); 2679 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2680 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2681 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2682 spin_unlock_irq(shost->host_lock); 2683 2684 shost = lpfc_shost_from_vport(vports[i]); 2685 list_for_each_entry_safe(ndlp, next_ndlp, 2686 &vports[i]->fc_nodes, 2687 nlp_listp) { 2688 if (!NLP_CHK_NODE_ACT(ndlp)) 2689 continue; 2690 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2691 continue; 2692 if (ndlp->nlp_type & NLP_FABRIC) { 2693 lpfc_disc_state_machine(vports[i], ndlp, 2694 NULL, NLP_EVT_DEVICE_RECOVERY); 2695 lpfc_disc_state_machine(vports[i], ndlp, 2696 NULL, NLP_EVT_DEVICE_RM); 2697 } 2698 spin_lock_irq(shost->host_lock); 2699 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2700 2701 /* 2702 * Whenever an SLI4 port goes offline, free the 2703 * RPI. A new RPI when the adapter port comes 2704 * back online. 2705 */ 2706 if (phba->sli_rev == LPFC_SLI_REV4) 2707 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2708 2709 spin_unlock_irq(shost->host_lock); 2710 lpfc_unreg_rpi(vports[i], ndlp); 2711 } 2712 } 2713 } 2714 lpfc_destroy_vport_work_array(phba, vports); 2715 2716 lpfc_sli_mbox_sys_shutdown(phba); 2717} 2718 2719/** 2720 * lpfc_offline - Bring a HBA offline 2721 * @phba: pointer to lpfc hba data structure. 2722 * 2723 * This routine actually brings a HBA offline. It stops all the timers 2724 * associated with the HBA, brings down the SLI layer, and eventually 2725 * marks the HBA as in offline state for the upper layer protocol. 2726 **/ 2727void 2728lpfc_offline(struct lpfc_hba *phba) 2729{ 2730 struct Scsi_Host *shost; 2731 struct lpfc_vport **vports; 2732 int i; 2733 2734 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2735 return; 2736 2737 /* stop port and all timers associated with this hba */ 2738 lpfc_stop_port(phba); 2739 vports = lpfc_create_vport_work_array(phba); 2740 if (vports != NULL) 2741 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2742 lpfc_stop_vport_timers(vports[i]); 2743 lpfc_destroy_vport_work_array(phba, vports); 2744 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2745 "0460 Bring Adapter offline\n"); 2746 /* Bring down the SLI Layer and cleanup. The HBA is offline 2747 now. */ 2748 lpfc_sli_hba_down(phba); 2749 spin_lock_irq(&phba->hbalock); 2750 phba->work_ha = 0; 2751 spin_unlock_irq(&phba->hbalock); 2752 vports = lpfc_create_vport_work_array(phba); 2753 if (vports != NULL) 2754 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2755 shost = lpfc_shost_from_vport(vports[i]); 2756 spin_lock_irq(shost->host_lock); 2757 vports[i]->work_port_events = 0; 2758 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2759 spin_unlock_irq(shost->host_lock); 2760 } 2761 lpfc_destroy_vport_work_array(phba, vports); 2762} 2763 2764/** 2765 * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated. 2766 * @phba: pointer to lpfc hba data structure. 2767 * 2768 * This routine goes through all the scsi buffers in the system and updates the 2769 * Physical XRIs assigned to the SCSI buffer because these may change after any 2770 * firmware reset 2771 * 2772 * Return codes 2773 * 0 - successful (for now, it always returns 0) 2774 **/ 2775int 2776lpfc_scsi_buf_update(struct lpfc_hba *phba) 2777{ 2778 struct lpfc_scsi_buf *sb, *sb_next; 2779 2780 spin_lock_irq(&phba->hbalock); 2781 spin_lock(&phba->scsi_buf_list_lock); 2782 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) 2783 sb->cur_iocbq.sli4_xritag = 2784 phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag]; 2785 spin_unlock(&phba->scsi_buf_list_lock); 2786 spin_unlock_irq(&phba->hbalock); 2787 return 0; 2788} 2789 2790/** 2791 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2792 * @phba: pointer to lpfc hba data structure. 2793 * 2794 * This routine is to free all the SCSI buffers and IOCBs from the driver 2795 * list back to kernel. It is called from lpfc_pci_remove_one to free 2796 * the internal resources before the device is removed from the system. 2797 * 2798 * Return codes 2799 * 0 - successful (for now, it always returns 0) 2800 **/ 2801static int 2802lpfc_scsi_free(struct lpfc_hba *phba) 2803{ 2804 struct lpfc_scsi_buf *sb, *sb_next; 2805 struct lpfc_iocbq *io, *io_next; 2806 2807 spin_lock_irq(&phba->hbalock); 2808 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2809 spin_lock(&phba->scsi_buf_list_lock); 2810 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2811 list_del(&sb->list); 2812 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2813 sb->dma_handle); 2814 kfree(sb); 2815 phba->total_scsi_bufs--; 2816 } 2817 spin_unlock(&phba->scsi_buf_list_lock); 2818 2819 /* Release all the lpfc_iocbq entries maintained by this host. */ 2820 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2821 list_del(&io->list); 2822 kfree(io); 2823 phba->total_iocbq_bufs--; 2824 } 2825 2826 spin_unlock_irq(&phba->hbalock); 2827 return 0; 2828} 2829 2830/** 2831 * lpfc_create_port - Create an FC port 2832 * @phba: pointer to lpfc hba data structure. 2833 * @instance: a unique integer ID to this FC port. 2834 * @dev: pointer to the device data structure. 2835 * 2836 * This routine creates a FC port for the upper layer protocol. The FC port 2837 * can be created on top of either a physical port or a virtual port provided 2838 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2839 * and associates the FC port created before adding the shost into the SCSI 2840 * layer. 2841 * 2842 * Return codes 2843 * @vport - pointer to the virtual N_Port data structure. 2844 * NULL - port create failed. 2845 **/ 2846struct lpfc_vport * 2847lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2848{ 2849 struct lpfc_vport *vport; 2850 struct Scsi_Host *shost; 2851 int error = 0; 2852 2853 if (dev != &phba->pcidev->dev) 2854 shost = scsi_host_alloc(&lpfc_vport_template, 2855 sizeof(struct lpfc_vport)); 2856 else 2857 shost = scsi_host_alloc(&lpfc_template, 2858 sizeof(struct lpfc_vport)); 2859 if (!shost) 2860 goto out; 2861 2862 vport = (struct lpfc_vport *) shost->hostdata; 2863 vport->phba = phba; 2864 vport->load_flag |= FC_LOADING; 2865 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2866 vport->fc_rscn_flush = 0; 2867 2868 lpfc_get_vport_cfgparam(vport); 2869 shost->unique_id = instance; 2870 shost->max_id = LPFC_MAX_TARGET; 2871 shost->max_lun = vport->cfg_max_luns; 2872 shost->this_id = -1; 2873 shost->max_cmd_len = 16; 2874 if (phba->sli_rev == LPFC_SLI_REV4) { 2875 shost->dma_boundary = 2876 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2877 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2878 } 2879 2880 /* 2881 * Set initial can_queue value since 0 is no longer supported and 2882 * scsi_add_host will fail. This will be adjusted later based on the 2883 * max xri value determined in hba setup. 2884 */ 2885 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2886 if (dev != &phba->pcidev->dev) { 2887 shost->transportt = lpfc_vport_transport_template; 2888 vport->port_type = LPFC_NPIV_PORT; 2889 } else { 2890 shost->transportt = lpfc_transport_template; 2891 vport->port_type = LPFC_PHYSICAL_PORT; 2892 } 2893 2894 /* Initialize all internally managed lists. */ 2895 INIT_LIST_HEAD(&vport->fc_nodes); 2896 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2897 spin_lock_init(&vport->work_port_lock); 2898 2899 init_timer(&vport->fc_disctmo); 2900 vport->fc_disctmo.function = lpfc_disc_timeout; 2901 vport->fc_disctmo.data = (unsigned long)vport; 2902 2903 init_timer(&vport->fc_fdmitmo); 2904 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2905 vport->fc_fdmitmo.data = (unsigned long)vport; 2906 2907 init_timer(&vport->els_tmofunc); 2908 vport->els_tmofunc.function = lpfc_els_timeout; 2909 vport->els_tmofunc.data = (unsigned long)vport; 2910 2911 init_timer(&vport->delayed_disc_tmo); 2912 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2913 vport->delayed_disc_tmo.data = (unsigned long)vport; 2914 2915 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2916 if (error) 2917 goto out_put_shost; 2918 2919 spin_lock_irq(&phba->hbalock); 2920 list_add_tail(&vport->listentry, &phba->port_list); 2921 spin_unlock_irq(&phba->hbalock); 2922 return vport; 2923 2924out_put_shost: 2925 scsi_host_put(shost); 2926out: 2927 return NULL; 2928} 2929 2930/** 2931 * destroy_port - destroy an FC port 2932 * @vport: pointer to an lpfc virtual N_Port data structure. 2933 * 2934 * This routine destroys a FC port from the upper layer protocol. All the 2935 * resources associated with the port are released. 2936 **/ 2937void 2938destroy_port(struct lpfc_vport *vport) 2939{ 2940 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2941 struct lpfc_hba *phba = vport->phba; 2942 2943 lpfc_debugfs_terminate(vport); 2944 fc_remove_host(shost); 2945 scsi_remove_host(shost); 2946 2947 spin_lock_irq(&phba->hbalock); 2948 list_del_init(&vport->listentry); 2949 spin_unlock_irq(&phba->hbalock); 2950 2951 lpfc_cleanup(vport); 2952 return; 2953} 2954 2955/** 2956 * lpfc_get_instance - Get a unique integer ID 2957 * 2958 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2959 * uses the kernel idr facility to perform the task. 2960 * 2961 * Return codes: 2962 * instance - a unique integer ID allocated as the new instance. 2963 * -1 - lpfc get instance failed. 2964 **/ 2965int 2966lpfc_get_instance(void) 2967{ 2968 int instance = 0; 2969 2970 /* Assign an unused number */ 2971 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2972 return -1; 2973 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2974 return -1; 2975 return instance; 2976} 2977 2978/** 2979 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2980 * @shost: pointer to SCSI host data structure. 2981 * @time: elapsed time of the scan in jiffies. 2982 * 2983 * This routine is called by the SCSI layer with a SCSI host to determine 2984 * whether the scan host is finished. 2985 * 2986 * Note: there is no scan_start function as adapter initialization will have 2987 * asynchronously kicked off the link initialization. 2988 * 2989 * Return codes 2990 * 0 - SCSI host scan is not over yet. 2991 * 1 - SCSI host scan is over. 2992 **/ 2993int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2994{ 2995 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2996 struct lpfc_hba *phba = vport->phba; 2997 int stat = 0; 2998 2999 spin_lock_irq(shost->host_lock); 3000 3001 if (vport->load_flag & FC_UNLOADING) { 3002 stat = 1; 3003 goto finished; 3004 } 3005 if (time >= 30 * HZ) { 3006 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3007 "0461 Scanning longer than 30 " 3008 "seconds. Continuing initialization\n"); 3009 stat = 1; 3010 goto finished; 3011 } 3012 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3013 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3014 "0465 Link down longer than 15 " 3015 "seconds. Continuing initialization\n"); 3016 stat = 1; 3017 goto finished; 3018 } 3019 3020 if (vport->port_state != LPFC_VPORT_READY) 3021 goto finished; 3022 if (vport->num_disc_nodes || vport->fc_prli_sent) 3023 goto finished; 3024 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3025 goto finished; 3026 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3027 goto finished; 3028 3029 stat = 1; 3030 3031finished: 3032 spin_unlock_irq(shost->host_lock); 3033 return stat; 3034} 3035 3036/** 3037 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3038 * @shost: pointer to SCSI host data structure. 3039 * 3040 * This routine initializes a given SCSI host attributes on a FC port. The 3041 * SCSI host can be either on top of a physical port or a virtual port. 3042 **/ 3043void lpfc_host_attrib_init(struct Scsi_Host *shost) 3044{ 3045 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3046 struct lpfc_hba *phba = vport->phba; 3047 /* 3048 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3049 */ 3050 3051 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3052 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3053 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3054 3055 memset(fc_host_supported_fc4s(shost), 0, 3056 sizeof(fc_host_supported_fc4s(shost))); 3057 fc_host_supported_fc4s(shost)[2] = 1; 3058 fc_host_supported_fc4s(shost)[7] = 1; 3059 3060 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3061 sizeof fc_host_symbolic_name(shost)); 3062 3063 fc_host_supported_speeds(shost) = 0; 3064 if (phba->lmt & LMT_16Gb) 3065 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3066 if (phba->lmt & LMT_10Gb) 3067 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3068 if (phba->lmt & LMT_8Gb) 3069 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3070 if (phba->lmt & LMT_4Gb) 3071 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3072 if (phba->lmt & LMT_2Gb) 3073 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3074 if (phba->lmt & LMT_1Gb) 3075 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3076 3077 fc_host_maxframe_size(shost) = 3078 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3079 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3080 3081 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3082 3083 /* This value is also unchanging */ 3084 memset(fc_host_active_fc4s(shost), 0, 3085 sizeof(fc_host_active_fc4s(shost))); 3086 fc_host_active_fc4s(shost)[2] = 1; 3087 fc_host_active_fc4s(shost)[7] = 1; 3088 3089 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3090 spin_lock_irq(shost->host_lock); 3091 vport->load_flag &= ~FC_LOADING; 3092 spin_unlock_irq(shost->host_lock); 3093} 3094 3095/** 3096 * lpfc_stop_port_s3 - Stop SLI3 device port 3097 * @phba: pointer to lpfc hba data structure. 3098 * 3099 * This routine is invoked to stop an SLI3 device port, it stops the device 3100 * from generating interrupts and stops the device driver's timers for the 3101 * device. 3102 **/ 3103static void 3104lpfc_stop_port_s3(struct lpfc_hba *phba) 3105{ 3106 /* Clear all interrupt enable conditions */ 3107 writel(0, phba->HCregaddr); 3108 readl(phba->HCregaddr); /* flush */ 3109 /* Clear all pending interrupts */ 3110 writel(0xffffffff, phba->HAregaddr); 3111 readl(phba->HAregaddr); /* flush */ 3112 3113 /* Reset some HBA SLI setup states */ 3114 lpfc_stop_hba_timers(phba); 3115 phba->pport->work_port_events = 0; 3116} 3117 3118/** 3119 * lpfc_stop_port_s4 - Stop SLI4 device port 3120 * @phba: pointer to lpfc hba data structure. 3121 * 3122 * This routine is invoked to stop an SLI4 device port, it stops the device 3123 * from generating interrupts and stops the device driver's timers for the 3124 * device. 3125 **/ 3126static void 3127lpfc_stop_port_s4(struct lpfc_hba *phba) 3128{ 3129 /* Reset some HBA SLI4 setup states */ 3130 lpfc_stop_hba_timers(phba); 3131 phba->pport->work_port_events = 0; 3132 phba->sli4_hba.intr_enable = 0; 3133} 3134 3135/** 3136 * lpfc_stop_port - Wrapper function for stopping hba port 3137 * @phba: Pointer to HBA context object. 3138 * 3139 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3140 * the API jump table function pointer from the lpfc_hba struct. 3141 **/ 3142void 3143lpfc_stop_port(struct lpfc_hba *phba) 3144{ 3145 phba->lpfc_stop_port(phba); 3146} 3147 3148/** 3149 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3150 * @phba: Pointer to hba for which this call is being executed. 3151 * 3152 * This routine starts the timer waiting for the FCF rediscovery to complete. 3153 **/ 3154void 3155lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3156{ 3157 unsigned long fcf_redisc_wait_tmo = 3158 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3159 /* Start fcf rediscovery wait period timer */ 3160 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3161 spin_lock_irq(&phba->hbalock); 3162 /* Allow action to new fcf asynchronous event */ 3163 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3164 /* Mark the FCF rediscovery pending state */ 3165 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3166 spin_unlock_irq(&phba->hbalock); 3167} 3168 3169/** 3170 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3171 * @ptr: Map to lpfc_hba data structure pointer. 3172 * 3173 * This routine is invoked when waiting for FCF table rediscover has been 3174 * timed out. If new FCF record(s) has (have) been discovered during the 3175 * wait period, a new FCF event shall be added to the FCOE async event 3176 * list, and then worker thread shall be waked up for processing from the 3177 * worker thread context. 3178 **/ 3179void 3180lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3181{ 3182 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3183 3184 /* Don't send FCF rediscovery event if timer cancelled */ 3185 spin_lock_irq(&phba->hbalock); 3186 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3187 spin_unlock_irq(&phba->hbalock); 3188 return; 3189 } 3190 /* Clear FCF rediscovery timer pending flag */ 3191 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3192 /* FCF rediscovery event to worker thread */ 3193 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3194 spin_unlock_irq(&phba->hbalock); 3195 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3196 "2776 FCF rediscover quiescent timer expired\n"); 3197 /* wake up worker thread */ 3198 lpfc_worker_wake_up(phba); 3199} 3200 3201/** 3202 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3203 * @phba: pointer to lpfc hba data structure. 3204 * @acqe_link: pointer to the async link completion queue entry. 3205 * 3206 * This routine is to parse the SLI4 link-attention link fault code and 3207 * translate it into the base driver's read link attention mailbox command 3208 * status. 3209 * 3210 * Return: Link-attention status in terms of base driver's coding. 3211 **/ 3212static uint16_t 3213lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3214 struct lpfc_acqe_link *acqe_link) 3215{ 3216 uint16_t latt_fault; 3217 3218 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3219 case LPFC_ASYNC_LINK_FAULT_NONE: 3220 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3221 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3222 latt_fault = 0; 3223 break; 3224 default: 3225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3226 "0398 Invalid link fault code: x%x\n", 3227 bf_get(lpfc_acqe_link_fault, acqe_link)); 3228 latt_fault = MBXERR_ERROR; 3229 break; 3230 } 3231 return latt_fault; 3232} 3233 3234/** 3235 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3236 * @phba: pointer to lpfc hba data structure. 3237 * @acqe_link: pointer to the async link completion queue entry. 3238 * 3239 * This routine is to parse the SLI4 link attention type and translate it 3240 * into the base driver's link attention type coding. 3241 * 3242 * Return: Link attention type in terms of base driver's coding. 3243 **/ 3244static uint8_t 3245lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3246 struct lpfc_acqe_link *acqe_link) 3247{ 3248 uint8_t att_type; 3249 3250 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3251 case LPFC_ASYNC_LINK_STATUS_DOWN: 3252 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3253 att_type = LPFC_ATT_LINK_DOWN; 3254 break; 3255 case LPFC_ASYNC_LINK_STATUS_UP: 3256 /* Ignore physical link up events - wait for logical link up */ 3257 att_type = LPFC_ATT_RESERVED; 3258 break; 3259 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3260 att_type = LPFC_ATT_LINK_UP; 3261 break; 3262 default: 3263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3264 "0399 Invalid link attention type: x%x\n", 3265 bf_get(lpfc_acqe_link_status, acqe_link)); 3266 att_type = LPFC_ATT_RESERVED; 3267 break; 3268 } 3269 return att_type; 3270} 3271 3272/** 3273 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3274 * @phba: pointer to lpfc hba data structure. 3275 * @acqe_link: pointer to the async link completion queue entry. 3276 * 3277 * This routine is to parse the SLI4 link-attention link speed and translate 3278 * it into the base driver's link-attention link speed coding. 3279 * 3280 * Return: Link-attention link speed in terms of base driver's coding. 3281 **/ 3282static uint8_t 3283lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3284 struct lpfc_acqe_link *acqe_link) 3285{ 3286 uint8_t link_speed; 3287 3288 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3289 case LPFC_ASYNC_LINK_SPEED_ZERO: 3290 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3291 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3292 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3293 break; 3294 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3295 link_speed = LPFC_LINK_SPEED_1GHZ; 3296 break; 3297 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3298 link_speed = LPFC_LINK_SPEED_10GHZ; 3299 break; 3300 default: 3301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3302 "0483 Invalid link-attention link speed: x%x\n", 3303 bf_get(lpfc_acqe_link_speed, acqe_link)); 3304 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3305 break; 3306 } 3307 return link_speed; 3308} 3309 3310/** 3311 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3312 * @phba: pointer to lpfc hba data structure. 3313 * @acqe_link: pointer to the async link completion queue entry. 3314 * 3315 * This routine is to handle the SLI4 asynchronous FCoE link event. 3316 **/ 3317static void 3318lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3319 struct lpfc_acqe_link *acqe_link) 3320{ 3321 struct lpfc_dmabuf *mp; 3322 LPFC_MBOXQ_t *pmb; 3323 MAILBOX_t *mb; 3324 struct lpfc_mbx_read_top *la; 3325 uint8_t att_type; 3326 int rc; 3327 3328 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3329 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3330 return; 3331 phba->fcoe_eventtag = acqe_link->event_tag; 3332 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3333 if (!pmb) { 3334 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3335 "0395 The mboxq allocation failed\n"); 3336 return; 3337 } 3338 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3339 if (!mp) { 3340 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3341 "0396 The lpfc_dmabuf allocation failed\n"); 3342 goto out_free_pmb; 3343 } 3344 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3345 if (!mp->virt) { 3346 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3347 "0397 The mbuf allocation failed\n"); 3348 goto out_free_dmabuf; 3349 } 3350 3351 /* Cleanup any outstanding ELS commands */ 3352 lpfc_els_flush_all_cmd(phba); 3353 3354 /* Block ELS IOCBs until we have done process link event */ 3355 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3356 3357 /* Update link event statistics */ 3358 phba->sli.slistat.link_event++; 3359 3360 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3361 lpfc_read_topology(phba, pmb, mp); 3362 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3363 pmb->vport = phba->pport; 3364 3365 /* Keep the link status for extra SLI4 state machine reference */ 3366 phba->sli4_hba.link_state.speed = 3367 bf_get(lpfc_acqe_link_speed, acqe_link); 3368 phba->sli4_hba.link_state.duplex = 3369 bf_get(lpfc_acqe_link_duplex, acqe_link); 3370 phba->sli4_hba.link_state.status = 3371 bf_get(lpfc_acqe_link_status, acqe_link); 3372 phba->sli4_hba.link_state.type = 3373 bf_get(lpfc_acqe_link_type, acqe_link); 3374 phba->sli4_hba.link_state.number = 3375 bf_get(lpfc_acqe_link_number, acqe_link); 3376 phba->sli4_hba.link_state.fault = 3377 bf_get(lpfc_acqe_link_fault, acqe_link); 3378 phba->sli4_hba.link_state.logical_speed = 3379 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3380 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3381 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3382 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3383 "Logical speed:%dMbps Fault:%d\n", 3384 phba->sli4_hba.link_state.speed, 3385 phba->sli4_hba.link_state.topology, 3386 phba->sli4_hba.link_state.status, 3387 phba->sli4_hba.link_state.type, 3388 phba->sli4_hba.link_state.number, 3389 phba->sli4_hba.link_state.logical_speed * 10, 3390 phba->sli4_hba.link_state.fault); 3391 /* 3392 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3393 * topology info. Note: Optional for non FC-AL ports. 3394 */ 3395 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3396 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3397 if (rc == MBX_NOT_FINISHED) 3398 goto out_free_dmabuf; 3399 return; 3400 } 3401 /* 3402 * For FCoE Mode: fill in all the topology information we need and call 3403 * the READ_TOPOLOGY completion routine to continue without actually 3404 * sending the READ_TOPOLOGY mailbox command to the port. 3405 */ 3406 /* Parse and translate status field */ 3407 mb = &pmb->u.mb; 3408 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3409 3410 /* Parse and translate link attention fields */ 3411 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3412 la->eventTag = acqe_link->event_tag; 3413 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3414 bf_set(lpfc_mbx_read_top_link_spd, la, 3415 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3416 3417 /* Fake the the following irrelvant fields */ 3418 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3419 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3420 bf_set(lpfc_mbx_read_top_il, la, 0); 3421 bf_set(lpfc_mbx_read_top_pb, la, 0); 3422 bf_set(lpfc_mbx_read_top_fa, la, 0); 3423 bf_set(lpfc_mbx_read_top_mm, la, 0); 3424 3425 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3426 lpfc_mbx_cmpl_read_topology(phba, pmb); 3427 3428 return; 3429 3430out_free_dmabuf: 3431 kfree(mp); 3432out_free_pmb: 3433 mempool_free(pmb, phba->mbox_mem_pool); 3434} 3435 3436/** 3437 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3438 * @phba: pointer to lpfc hba data structure. 3439 * @acqe_fc: pointer to the async fc completion queue entry. 3440 * 3441 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3442 * that the event was received and then issue a read_topology mailbox command so 3443 * that the rest of the driver will treat it the same as SLI3. 3444 **/ 3445static void 3446lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3447{ 3448 struct lpfc_dmabuf *mp; 3449 LPFC_MBOXQ_t *pmb; 3450 int rc; 3451 3452 if (bf_get(lpfc_trailer_type, acqe_fc) != 3453 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3454 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3455 "2895 Non FC link Event detected.(%d)\n", 3456 bf_get(lpfc_trailer_type, acqe_fc)); 3457 return; 3458 } 3459 /* Keep the link status for extra SLI4 state machine reference */ 3460 phba->sli4_hba.link_state.speed = 3461 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3462 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3463 phba->sli4_hba.link_state.topology = 3464 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3465 phba->sli4_hba.link_state.status = 3466 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3467 phba->sli4_hba.link_state.type = 3468 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3469 phba->sli4_hba.link_state.number = 3470 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3471 phba->sli4_hba.link_state.fault = 3472 bf_get(lpfc_acqe_link_fault, acqe_fc); 3473 phba->sli4_hba.link_state.logical_speed = 3474 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3475 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3476 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3477 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3478 "%dMbps Fault:%d\n", 3479 phba->sli4_hba.link_state.speed, 3480 phba->sli4_hba.link_state.topology, 3481 phba->sli4_hba.link_state.status, 3482 phba->sli4_hba.link_state.type, 3483 phba->sli4_hba.link_state.number, 3484 phba->sli4_hba.link_state.logical_speed * 10, 3485 phba->sli4_hba.link_state.fault); 3486 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3487 if (!pmb) { 3488 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3489 "2897 The mboxq allocation failed\n"); 3490 return; 3491 } 3492 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3493 if (!mp) { 3494 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3495 "2898 The lpfc_dmabuf allocation failed\n"); 3496 goto out_free_pmb; 3497 } 3498 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3499 if (!mp->virt) { 3500 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3501 "2899 The mbuf allocation failed\n"); 3502 goto out_free_dmabuf; 3503 } 3504 3505 /* Cleanup any outstanding ELS commands */ 3506 lpfc_els_flush_all_cmd(phba); 3507 3508 /* Block ELS IOCBs until we have done process link event */ 3509 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3510 3511 /* Update link event statistics */ 3512 phba->sli.slistat.link_event++; 3513 3514 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3515 lpfc_read_topology(phba, pmb, mp); 3516 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3517 pmb->vport = phba->pport; 3518 3519 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3520 if (rc == MBX_NOT_FINISHED) 3521 goto out_free_dmabuf; 3522 return; 3523 3524out_free_dmabuf: 3525 kfree(mp); 3526out_free_pmb: 3527 mempool_free(pmb, phba->mbox_mem_pool); 3528} 3529 3530/** 3531 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3532 * @phba: pointer to lpfc hba data structure. 3533 * @acqe_fc: pointer to the async SLI completion queue entry. 3534 * 3535 * This routine is to handle the SLI4 asynchronous SLI events. 3536 **/ 3537static void 3538lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3539{ 3540 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3541 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3542 "x%08x SLI Event Type:%d", 3543 acqe_sli->event_data1, acqe_sli->event_data2, 3544 bf_get(lpfc_trailer_type, acqe_sli)); 3545 return; 3546} 3547 3548/** 3549 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3550 * @vport: pointer to vport data structure. 3551 * 3552 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3553 * response to a CVL event. 3554 * 3555 * Return the pointer to the ndlp with the vport if successful, otherwise 3556 * return NULL. 3557 **/ 3558static struct lpfc_nodelist * 3559lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3560{ 3561 struct lpfc_nodelist *ndlp; 3562 struct Scsi_Host *shost; 3563 struct lpfc_hba *phba; 3564 3565 if (!vport) 3566 return NULL; 3567 phba = vport->phba; 3568 if (!phba) 3569 return NULL; 3570 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3571 if (!ndlp) { 3572 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3573 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3574 if (!ndlp) 3575 return 0; 3576 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3577 /* Set the node type */ 3578 ndlp->nlp_type |= NLP_FABRIC; 3579 /* Put ndlp onto node list */ 3580 lpfc_enqueue_node(vport, ndlp); 3581 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3582 /* re-setup ndlp without removing from node list */ 3583 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3584 if (!ndlp) 3585 return 0; 3586 } 3587 if ((phba->pport->port_state < LPFC_FLOGI) && 3588 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3589 return NULL; 3590 /* If virtual link is not yet instantiated ignore CVL */ 3591 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3592 && (vport->port_state != LPFC_VPORT_FAILED)) 3593 return NULL; 3594 shost = lpfc_shost_from_vport(vport); 3595 if (!shost) 3596 return NULL; 3597 lpfc_linkdown_port(vport); 3598 lpfc_cleanup_pending_mbox(vport); 3599 spin_lock_irq(shost->host_lock); 3600 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3601 spin_unlock_irq(shost->host_lock); 3602 3603 return ndlp; 3604} 3605 3606/** 3607 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3608 * @vport: pointer to lpfc hba data structure. 3609 * 3610 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3611 * response to a FCF dead event. 3612 **/ 3613static void 3614lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3615{ 3616 struct lpfc_vport **vports; 3617 int i; 3618 3619 vports = lpfc_create_vport_work_array(phba); 3620 if (vports) 3621 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3622 lpfc_sli4_perform_vport_cvl(vports[i]); 3623 lpfc_destroy_vport_work_array(phba, vports); 3624} 3625 3626/** 3627 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3628 * @phba: pointer to lpfc hba data structure. 3629 * @acqe_link: pointer to the async fcoe completion queue entry. 3630 * 3631 * This routine is to handle the SLI4 asynchronous fcoe event. 3632 **/ 3633static void 3634lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3635 struct lpfc_acqe_fip *acqe_fip) 3636{ 3637 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3638 int rc; 3639 struct lpfc_vport *vport; 3640 struct lpfc_nodelist *ndlp; 3641 struct Scsi_Host *shost; 3642 int active_vlink_present; 3643 struct lpfc_vport **vports; 3644 int i; 3645 3646 phba->fc_eventTag = acqe_fip->event_tag; 3647 phba->fcoe_eventtag = acqe_fip->event_tag; 3648 switch (event_type) { 3649 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3650 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3651 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3652 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3653 LOG_DISCOVERY, 3654 "2546 New FCF event, evt_tag:x%x, " 3655 "index:x%x\n", 3656 acqe_fip->event_tag, 3657 acqe_fip->index); 3658 else 3659 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3660 LOG_DISCOVERY, 3661 "2788 FCF param modified event, " 3662 "evt_tag:x%x, index:x%x\n", 3663 acqe_fip->event_tag, 3664 acqe_fip->index); 3665 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3666 /* 3667 * During period of FCF discovery, read the FCF 3668 * table record indexed by the event to update 3669 * FCF roundrobin failover eligible FCF bmask. 3670 */ 3671 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3672 LOG_DISCOVERY, 3673 "2779 Read FCF (x%x) for updating " 3674 "roundrobin FCF failover bmask\n", 3675 acqe_fip->index); 3676 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3677 } 3678 3679 /* If the FCF discovery is in progress, do nothing. */ 3680 spin_lock_irq(&phba->hbalock); 3681 if (phba->hba_flag & FCF_TS_INPROG) { 3682 spin_unlock_irq(&phba->hbalock); 3683 break; 3684 } 3685 /* If fast FCF failover rescan event is pending, do nothing */ 3686 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3687 spin_unlock_irq(&phba->hbalock); 3688 break; 3689 } 3690 3691 /* If the FCF has been in discovered state, do nothing. */ 3692 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3693 spin_unlock_irq(&phba->hbalock); 3694 break; 3695 } 3696 spin_unlock_irq(&phba->hbalock); 3697 3698 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3699 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3700 "2770 Start FCF table scan per async FCF " 3701 "event, evt_tag:x%x, index:x%x\n", 3702 acqe_fip->event_tag, acqe_fip->index); 3703 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3704 LPFC_FCOE_FCF_GET_FIRST); 3705 if (rc) 3706 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3707 "2547 Issue FCF scan read FCF mailbox " 3708 "command failed (x%x)\n", rc); 3709 break; 3710 3711 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3712 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3713 "2548 FCF Table full count 0x%x tag 0x%x\n", 3714 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3715 acqe_fip->event_tag); 3716 break; 3717 3718 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3719 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3720 "2549 FCF (x%x) disconnected from network, " 3721 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3722 /* 3723 * If we are in the middle of FCF failover process, clear 3724 * the corresponding FCF bit in the roundrobin bitmap. 3725 */ 3726 spin_lock_irq(&phba->hbalock); 3727 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3728 spin_unlock_irq(&phba->hbalock); 3729 /* Update FLOGI FCF failover eligible FCF bmask */ 3730 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3731 break; 3732 } 3733 spin_unlock_irq(&phba->hbalock); 3734 3735 /* If the event is not for currently used fcf do nothing */ 3736 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3737 break; 3738 3739 /* 3740 * Otherwise, request the port to rediscover the entire FCF 3741 * table for a fast recovery from case that the current FCF 3742 * is no longer valid as we are not in the middle of FCF 3743 * failover process already. 3744 */ 3745 spin_lock_irq(&phba->hbalock); 3746 /* Mark the fast failover process in progress */ 3747 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3748 spin_unlock_irq(&phba->hbalock); 3749 3750 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3751 "2771 Start FCF fast failover process due to " 3752 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3753 "\n", acqe_fip->event_tag, acqe_fip->index); 3754 rc = lpfc_sli4_redisc_fcf_table(phba); 3755 if (rc) { 3756 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3757 LOG_DISCOVERY, 3758 "2772 Issue FCF rediscover mabilbox " 3759 "command failed, fail through to FCF " 3760 "dead event\n"); 3761 spin_lock_irq(&phba->hbalock); 3762 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3763 spin_unlock_irq(&phba->hbalock); 3764 /* 3765 * Last resort will fail over by treating this 3766 * as a link down to FCF registration. 3767 */ 3768 lpfc_sli4_fcf_dead_failthrough(phba); 3769 } else { 3770 /* Reset FCF roundrobin bmask for new discovery */ 3771 lpfc_sli4_clear_fcf_rr_bmask(phba); 3772 /* 3773 * Handling fast FCF failover to a DEAD FCF event is 3774 * considered equalivant to receiving CVL to all vports. 3775 */ 3776 lpfc_sli4_perform_all_vport_cvl(phba); 3777 } 3778 break; 3779 case LPFC_FIP_EVENT_TYPE_CVL: 3780 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3781 "2718 Clear Virtual Link Received for VPI 0x%x" 3782 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3783 3784 vport = lpfc_find_vport_by_vpid(phba, 3785 acqe_fip->index); 3786 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3787 if (!ndlp) 3788 break; 3789 active_vlink_present = 0; 3790 3791 vports = lpfc_create_vport_work_array(phba); 3792 if (vports) { 3793 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3794 i++) { 3795 if ((!(vports[i]->fc_flag & 3796 FC_VPORT_CVL_RCVD)) && 3797 (vports[i]->port_state > LPFC_FDISC)) { 3798 active_vlink_present = 1; 3799 break; 3800 } 3801 } 3802 lpfc_destroy_vport_work_array(phba, vports); 3803 } 3804 3805 if (active_vlink_present) { 3806 /* 3807 * If there are other active VLinks present, 3808 * re-instantiate the Vlink using FDISC. 3809 */ 3810 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3811 shost = lpfc_shost_from_vport(vport); 3812 spin_lock_irq(shost->host_lock); 3813 ndlp->nlp_flag |= NLP_DELAY_TMO; 3814 spin_unlock_irq(shost->host_lock); 3815 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3816 vport->port_state = LPFC_FDISC; 3817 } else { 3818 /* 3819 * Otherwise, we request port to rediscover 3820 * the entire FCF table for a fast recovery 3821 * from possible case that the current FCF 3822 * is no longer valid if we are not already 3823 * in the FCF failover process. 3824 */ 3825 spin_lock_irq(&phba->hbalock); 3826 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3827 spin_unlock_irq(&phba->hbalock); 3828 break; 3829 } 3830 /* Mark the fast failover process in progress */ 3831 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3832 spin_unlock_irq(&phba->hbalock); 3833 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3834 LOG_DISCOVERY, 3835 "2773 Start FCF failover per CVL, " 3836 "evt_tag:x%x\n", acqe_fip->event_tag); 3837 rc = lpfc_sli4_redisc_fcf_table(phba); 3838 if (rc) { 3839 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3840 LOG_DISCOVERY, 3841 "2774 Issue FCF rediscover " 3842 "mabilbox command failed, " 3843 "through to CVL event\n"); 3844 spin_lock_irq(&phba->hbalock); 3845 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3846 spin_unlock_irq(&phba->hbalock); 3847 /* 3848 * Last resort will be re-try on the 3849 * the current registered FCF entry. 3850 */ 3851 lpfc_retry_pport_discovery(phba); 3852 } else 3853 /* 3854 * Reset FCF roundrobin bmask for new 3855 * discovery. 3856 */ 3857 lpfc_sli4_clear_fcf_rr_bmask(phba); 3858 } 3859 break; 3860 default: 3861 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3862 "0288 Unknown FCoE event type 0x%x event tag " 3863 "0x%x\n", event_type, acqe_fip->event_tag); 3864 break; 3865 } 3866} 3867 3868/** 3869 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3870 * @phba: pointer to lpfc hba data structure. 3871 * @acqe_link: pointer to the async dcbx completion queue entry. 3872 * 3873 * This routine is to handle the SLI4 asynchronous dcbx event. 3874 **/ 3875static void 3876lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3877 struct lpfc_acqe_dcbx *acqe_dcbx) 3878{ 3879 phba->fc_eventTag = acqe_dcbx->event_tag; 3880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3881 "0290 The SLI4 DCBX asynchronous event is not " 3882 "handled yet\n"); 3883} 3884 3885/** 3886 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3887 * @phba: pointer to lpfc hba data structure. 3888 * @acqe_link: pointer to the async grp5 completion queue entry. 3889 * 3890 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3891 * is an asynchronous notified of a logical link speed change. The Port 3892 * reports the logical link speed in units of 10Mbps. 3893 **/ 3894static void 3895lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3896 struct lpfc_acqe_grp5 *acqe_grp5) 3897{ 3898 uint16_t prev_ll_spd; 3899 3900 phba->fc_eventTag = acqe_grp5->event_tag; 3901 phba->fcoe_eventtag = acqe_grp5->event_tag; 3902 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3903 phba->sli4_hba.link_state.logical_speed = 3904 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3905 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3906 "2789 GRP5 Async Event: Updating logical link speed " 3907 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3908 (phba->sli4_hba.link_state.logical_speed*10)); 3909} 3910 3911/** 3912 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3913 * @phba: pointer to lpfc hba data structure. 3914 * 3915 * This routine is invoked by the worker thread to process all the pending 3916 * SLI4 asynchronous events. 3917 **/ 3918void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3919{ 3920 struct lpfc_cq_event *cq_event; 3921 3922 /* First, declare the async event has been handled */ 3923 spin_lock_irq(&phba->hbalock); 3924 phba->hba_flag &= ~ASYNC_EVENT; 3925 spin_unlock_irq(&phba->hbalock); 3926 /* Now, handle all the async events */ 3927 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3928 /* Get the first event from the head of the event queue */ 3929 spin_lock_irq(&phba->hbalock); 3930 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3931 cq_event, struct lpfc_cq_event, list); 3932 spin_unlock_irq(&phba->hbalock); 3933 /* Process the asynchronous event */ 3934 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3935 case LPFC_TRAILER_CODE_LINK: 3936 lpfc_sli4_async_link_evt(phba, 3937 &cq_event->cqe.acqe_link); 3938 break; 3939 case LPFC_TRAILER_CODE_FCOE: 3940 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3941 break; 3942 case LPFC_TRAILER_CODE_DCBX: 3943 lpfc_sli4_async_dcbx_evt(phba, 3944 &cq_event->cqe.acqe_dcbx); 3945 break; 3946 case LPFC_TRAILER_CODE_GRP5: 3947 lpfc_sli4_async_grp5_evt(phba, 3948 &cq_event->cqe.acqe_grp5); 3949 break; 3950 case LPFC_TRAILER_CODE_FC: 3951 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3952 break; 3953 case LPFC_TRAILER_CODE_SLI: 3954 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3955 break; 3956 default: 3957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3958 "1804 Invalid asynchrous event code: " 3959 "x%x\n", bf_get(lpfc_trailer_code, 3960 &cq_event->cqe.mcqe_cmpl)); 3961 break; 3962 } 3963 /* Free the completion event processed to the free pool */ 3964 lpfc_sli4_cq_event_release(phba, cq_event); 3965 } 3966} 3967 3968/** 3969 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3970 * @phba: pointer to lpfc hba data structure. 3971 * 3972 * This routine is invoked by the worker thread to process FCF table 3973 * rediscovery pending completion event. 3974 **/ 3975void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3976{ 3977 int rc; 3978 3979 spin_lock_irq(&phba->hbalock); 3980 /* Clear FCF rediscovery timeout event */ 3981 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3982 /* Clear driver fast failover FCF record flag */ 3983 phba->fcf.failover_rec.flag = 0; 3984 /* Set state for FCF fast failover */ 3985 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3986 spin_unlock_irq(&phba->hbalock); 3987 3988 /* Scan FCF table from the first entry to re-discover SAN */ 3989 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3990 "2777 Start post-quiescent FCF table scan\n"); 3991 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3992 if (rc) 3993 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3994 "2747 Issue FCF scan read FCF mailbox " 3995 "command failed 0x%x\n", rc); 3996} 3997 3998/** 3999 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4000 * @phba: pointer to lpfc hba data structure. 4001 * @dev_grp: The HBA PCI-Device group number. 4002 * 4003 * This routine is invoked to set up the per HBA PCI-Device group function 4004 * API jump table entries. 4005 * 4006 * Return: 0 if success, otherwise -ENODEV 4007 **/ 4008int 4009lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4010{ 4011 int rc; 4012 4013 /* Set up lpfc PCI-device group */ 4014 phba->pci_dev_grp = dev_grp; 4015 4016 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4017 if (dev_grp == LPFC_PCI_DEV_OC) 4018 phba->sli_rev = LPFC_SLI_REV4; 4019 4020 /* Set up device INIT API function jump table */ 4021 rc = lpfc_init_api_table_setup(phba, dev_grp); 4022 if (rc) 4023 return -ENODEV; 4024 /* Set up SCSI API function jump table */ 4025 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4026 if (rc) 4027 return -ENODEV; 4028 /* Set up SLI API function jump table */ 4029 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4030 if (rc) 4031 return -ENODEV; 4032 /* Set up MBOX API function jump table */ 4033 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4034 if (rc) 4035 return -ENODEV; 4036 4037 return 0; 4038} 4039 4040/** 4041 * lpfc_log_intr_mode - Log the active interrupt mode 4042 * @phba: pointer to lpfc hba data structure. 4043 * @intr_mode: active interrupt mode adopted. 4044 * 4045 * This routine it invoked to log the currently used active interrupt mode 4046 * to the device. 4047 **/ 4048static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4049{ 4050 switch (intr_mode) { 4051 case 0: 4052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4053 "0470 Enable INTx interrupt mode.\n"); 4054 break; 4055 case 1: 4056 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4057 "0481 Enabled MSI interrupt mode.\n"); 4058 break; 4059 case 2: 4060 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4061 "0480 Enabled MSI-X interrupt mode.\n"); 4062 break; 4063 default: 4064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4065 "0482 Illegal interrupt mode.\n"); 4066 break; 4067 } 4068 return; 4069} 4070 4071/** 4072 * lpfc_enable_pci_dev - Enable a generic PCI device. 4073 * @phba: pointer to lpfc hba data structure. 4074 * 4075 * This routine is invoked to enable the PCI device that is common to all 4076 * PCI devices. 4077 * 4078 * Return codes 4079 * 0 - successful 4080 * other values - error 4081 **/ 4082static int 4083lpfc_enable_pci_dev(struct lpfc_hba *phba) 4084{ 4085 struct pci_dev *pdev; 4086 int bars = 0; 4087 4088 /* Obtain PCI device reference */ 4089 if (!phba->pcidev) 4090 goto out_error; 4091 else 4092 pdev = phba->pcidev; 4093 /* Select PCI BARs */ 4094 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4095 /* Enable PCI device */ 4096 if (pci_enable_device_mem(pdev)) 4097 goto out_error; 4098 /* Request PCI resource for the device */ 4099 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4100 goto out_disable_device; 4101 /* Set up device as PCI master and save state for EEH */ 4102 pci_set_master(pdev); 4103 pci_try_set_mwi(pdev); 4104 pci_save_state(pdev); 4105 4106 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4107 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4108 pdev->needs_freset = 1; 4109 4110 return 0; 4111 4112out_disable_device: 4113 pci_disable_device(pdev); 4114out_error: 4115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4116 "1401 Failed to enable pci device, bars:x%x\n", bars); 4117 return -ENODEV; 4118} 4119 4120/** 4121 * lpfc_disable_pci_dev - Disable a generic PCI device. 4122 * @phba: pointer to lpfc hba data structure. 4123 * 4124 * This routine is invoked to disable the PCI device that is common to all 4125 * PCI devices. 4126 **/ 4127static void 4128lpfc_disable_pci_dev(struct lpfc_hba *phba) 4129{ 4130 struct pci_dev *pdev; 4131 int bars; 4132 4133 /* Obtain PCI device reference */ 4134 if (!phba->pcidev) 4135 return; 4136 else 4137 pdev = phba->pcidev; 4138 /* Select PCI BARs */ 4139 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4140 /* Release PCI resource and disable PCI device */ 4141 pci_release_selected_regions(pdev, bars); 4142 pci_disable_device(pdev); 4143 /* Null out PCI private reference to driver */ 4144 pci_set_drvdata(pdev, NULL); 4145 4146 return; 4147} 4148 4149/** 4150 * lpfc_reset_hba - Reset a hba 4151 * @phba: pointer to lpfc hba data structure. 4152 * 4153 * This routine is invoked to reset a hba device. It brings the HBA 4154 * offline, performs a board restart, and then brings the board back 4155 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4156 * on outstanding mailbox commands. 4157 **/ 4158void 4159lpfc_reset_hba(struct lpfc_hba *phba) 4160{ 4161 /* If resets are disabled then set error state and return. */ 4162 if (!phba->cfg_enable_hba_reset) { 4163 phba->link_state = LPFC_HBA_ERROR; 4164 return; 4165 } 4166 lpfc_offline_prep(phba); 4167 lpfc_offline(phba); 4168 lpfc_sli_brdrestart(phba); 4169 lpfc_online(phba); 4170 lpfc_unblock_mgmt_io(phba); 4171} 4172 4173/** 4174 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4175 * @phba: pointer to lpfc hba data structure. 4176 * 4177 * This function enables the PCI SR-IOV virtual functions to a physical 4178 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4179 * enable the number of virtual functions to the physical function. As 4180 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4181 * API call does not considered as an error condition for most of the device. 4182 **/ 4183uint16_t 4184lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4185{ 4186 struct pci_dev *pdev = phba->pcidev; 4187 uint16_t nr_virtfn; 4188 int pos; 4189 4190 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4191 if (pos == 0) 4192 return 0; 4193 4194 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4195 return nr_virtfn; 4196} 4197 4198/** 4199 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4200 * @phba: pointer to lpfc hba data structure. 4201 * @nr_vfn: number of virtual functions to be enabled. 4202 * 4203 * This function enables the PCI SR-IOV virtual functions to a physical 4204 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4205 * enable the number of virtual functions to the physical function. As 4206 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4207 * API call does not considered as an error condition for most of the device. 4208 **/ 4209int 4210lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4211{ 4212 struct pci_dev *pdev = phba->pcidev; 4213 uint16_t max_nr_vfn; 4214 int rc; 4215 4216 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4217 if (nr_vfn > max_nr_vfn) { 4218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4219 "3057 Requested vfs (%d) greater than " 4220 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4221 return -EINVAL; 4222 } 4223 4224 rc = pci_enable_sriov(pdev, nr_vfn); 4225 if (rc) { 4226 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4227 "2806 Failed to enable sriov on this device " 4228 "with vfn number nr_vf:%d, rc:%d\n", 4229 nr_vfn, rc); 4230 } else 4231 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4232 "2807 Successful enable sriov on this device " 4233 "with vfn number nr_vf:%d\n", nr_vfn); 4234 return rc; 4235} 4236 4237/** 4238 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4239 * @phba: pointer to lpfc hba data structure. 4240 * 4241 * This routine is invoked to set up the driver internal resources specific to 4242 * support the SLI-3 HBA device it attached to. 4243 * 4244 * Return codes 4245 * 0 - successful 4246 * other values - error 4247 **/ 4248static int 4249lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4250{ 4251 struct lpfc_sli *psli; 4252 int rc; 4253 4254 /* 4255 * Initialize timers used by driver 4256 */ 4257 4258 /* Heartbeat timer */ 4259 init_timer(&phba->hb_tmofunc); 4260 phba->hb_tmofunc.function = lpfc_hb_timeout; 4261 phba->hb_tmofunc.data = (unsigned long)phba; 4262 4263 psli = &phba->sli; 4264 /* MBOX heartbeat timer */ 4265 init_timer(&psli->mbox_tmo); 4266 psli->mbox_tmo.function = lpfc_mbox_timeout; 4267 psli->mbox_tmo.data = (unsigned long) phba; 4268 /* FCP polling mode timer */ 4269 init_timer(&phba->fcp_poll_timer); 4270 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4271 phba->fcp_poll_timer.data = (unsigned long) phba; 4272 /* Fabric block timer */ 4273 init_timer(&phba->fabric_block_timer); 4274 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4275 phba->fabric_block_timer.data = (unsigned long) phba; 4276 /* EA polling mode timer */ 4277 init_timer(&phba->eratt_poll); 4278 phba->eratt_poll.function = lpfc_poll_eratt; 4279 phba->eratt_poll.data = (unsigned long) phba; 4280 4281 /* Host attention work mask setup */ 4282 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4283 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4284 4285 /* Get all the module params for configuring this host */ 4286 lpfc_get_cfgparam(phba); 4287 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4288 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4289 /* check for menlo minimum sg count */ 4290 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4291 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4292 } 4293 4294 /* 4295 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4296 * used to create the sg_dma_buf_pool must be dynamically calculated. 4297 * 2 segments are added since the IOCB needs a command and response bde. 4298 */ 4299 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4300 sizeof(struct fcp_rsp) + 4301 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4302 4303 if (phba->cfg_enable_bg) { 4304 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4305 phba->cfg_sg_dma_buf_size += 4306 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4307 } 4308 4309 /* Also reinitialize the host templates with new values. */ 4310 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4311 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4312 4313 phba->max_vpi = LPFC_MAX_VPI; 4314 /* This will be set to correct value after config_port mbox */ 4315 phba->max_vports = 0; 4316 4317 /* 4318 * Initialize the SLI Layer to run with lpfc HBAs. 4319 */ 4320 lpfc_sli_setup(phba); 4321 lpfc_sli_queue_setup(phba); 4322 4323 /* Allocate device driver memory */ 4324 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4325 return -ENOMEM; 4326 4327 /* 4328 * Enable sr-iov virtual functions if supported and configured 4329 * through the module parameter. 4330 */ 4331 if (phba->cfg_sriov_nr_virtfn > 0) { 4332 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4333 phba->cfg_sriov_nr_virtfn); 4334 if (rc) { 4335 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4336 "2808 Requested number of SR-IOV " 4337 "virtual functions (%d) is not " 4338 "supported\n", 4339 phba->cfg_sriov_nr_virtfn); 4340 phba->cfg_sriov_nr_virtfn = 0; 4341 } 4342 } 4343 4344 return 0; 4345} 4346 4347/** 4348 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4349 * @phba: pointer to lpfc hba data structure. 4350 * 4351 * This routine is invoked to unset the driver internal resources set up 4352 * specific for supporting the SLI-3 HBA device it attached to. 4353 **/ 4354static void 4355lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4356{ 4357 /* Free device driver memory allocated */ 4358 lpfc_mem_free_all(phba); 4359 4360 return; 4361} 4362 4363/** 4364 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4365 * @phba: pointer to lpfc hba data structure. 4366 * 4367 * This routine is invoked to set up the driver internal resources specific to 4368 * support the SLI-4 HBA device it attached to. 4369 * 4370 * Return codes 4371 * 0 - successful 4372 * other values - error 4373 **/ 4374static int 4375lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4376{ 4377 struct lpfc_sli *psli; 4378 LPFC_MBOXQ_t *mboxq; 4379 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4380 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4381 struct lpfc_mqe *mqe; 4382 int longs, sli_family; 4383 4384 /* Before proceed, wait for POST done and device ready */ 4385 rc = lpfc_sli4_post_status_check(phba); 4386 if (rc) 4387 return -ENODEV; 4388 4389 /* 4390 * Initialize timers used by driver 4391 */ 4392 4393 /* Heartbeat timer */ 4394 init_timer(&phba->hb_tmofunc); 4395 phba->hb_tmofunc.function = lpfc_hb_timeout; 4396 phba->hb_tmofunc.data = (unsigned long)phba; 4397 init_timer(&phba->rrq_tmr); 4398 phba->rrq_tmr.function = lpfc_rrq_timeout; 4399 phba->rrq_tmr.data = (unsigned long)phba; 4400 4401 psli = &phba->sli; 4402 /* MBOX heartbeat timer */ 4403 init_timer(&psli->mbox_tmo); 4404 psli->mbox_tmo.function = lpfc_mbox_timeout; 4405 psli->mbox_tmo.data = (unsigned long) phba; 4406 /* Fabric block timer */ 4407 init_timer(&phba->fabric_block_timer); 4408 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4409 phba->fabric_block_timer.data = (unsigned long) phba; 4410 /* EA polling mode timer */ 4411 init_timer(&phba->eratt_poll); 4412 phba->eratt_poll.function = lpfc_poll_eratt; 4413 phba->eratt_poll.data = (unsigned long) phba; 4414 /* FCF rediscover timer */ 4415 init_timer(&phba->fcf.redisc_wait); 4416 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4417 phba->fcf.redisc_wait.data = (unsigned long)phba; 4418 4419 /* 4420 * Control structure for handling external multi-buffer mailbox 4421 * command pass-through. 4422 */ 4423 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4424 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4425 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4426 4427 /* 4428 * We need to do a READ_CONFIG mailbox command here before 4429 * calling lpfc_get_cfgparam. For VFs this will report the 4430 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4431 * All of the resources allocated 4432 * for this Port are tied to these values. 4433 */ 4434 /* Get all the module params for configuring this host */ 4435 lpfc_get_cfgparam(phba); 4436 phba->max_vpi = LPFC_MAX_VPI; 4437 /* This will be set to correct value after the read_config mbox */ 4438 phba->max_vports = 0; 4439 4440 /* Program the default value of vlan_id and fc_map */ 4441 phba->valid_vlan = 0; 4442 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4443 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4444 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4445 4446 /* 4447 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4448 * used to create the sg_dma_buf_pool must be dynamically calculated. 4449 * 2 segments are added since the IOCB needs a command and response bde. 4450 * To insure that the scsi sgl does not cross a 4k page boundary only 4451 * sgl sizes of must be a power of 2. 4452 */ 4453 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4454 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4455 4456 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4457 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4458 switch (sli_family) { 4459 case LPFC_SLI_INTF_FAMILY_BE2: 4460 case LPFC_SLI_INTF_FAMILY_BE3: 4461 /* There is a single hint for BE - 2 pages per BPL. */ 4462 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4463 LPFC_SLI_INTF_SLI_HINT1_1) 4464 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4465 break; 4466 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4467 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4468 default: 4469 break; 4470 } 4471 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4472 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4473 dma_buf_size = dma_buf_size << 1) 4474 ; 4475 if (dma_buf_size == max_buf_size) 4476 phba->cfg_sg_seg_cnt = (dma_buf_size - 4477 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4478 (2 * sizeof(struct sli4_sge))) / 4479 sizeof(struct sli4_sge); 4480 phba->cfg_sg_dma_buf_size = dma_buf_size; 4481 4482 /* Initialize buffer queue management fields */ 4483 hbq_count = lpfc_sli_hbq_count(); 4484 for (i = 0; i < hbq_count; ++i) 4485 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4486 INIT_LIST_HEAD(&phba->rb_pend_list); 4487 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4488 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4489 4490 /* 4491 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4492 */ 4493 /* Initialize the Abort scsi buffer list used by driver */ 4494 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4495 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4496 /* This abort list used by worker thread */ 4497 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4498 4499 /* 4500 * Initialize driver internal slow-path work queues 4501 */ 4502 4503 /* Driver internel slow-path CQ Event pool */ 4504 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4505 /* Response IOCB work queue list */ 4506 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4507 /* Asynchronous event CQ Event work queue list */ 4508 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4509 /* Fast-path XRI aborted CQ Event work queue list */ 4510 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4511 /* Slow-path XRI aborted CQ Event work queue list */ 4512 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4513 /* Receive queue CQ Event work queue list */ 4514 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4515 4516 /* Initialize extent block lists. */ 4517 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4518 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4519 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4520 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4521 4522 /* Initialize the driver internal SLI layer lists. */ 4523 lpfc_sli_setup(phba); 4524 lpfc_sli_queue_setup(phba); 4525 4526 /* Allocate device driver memory */ 4527 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4528 if (rc) 4529 return -ENOMEM; 4530 4531 /* IF Type 2 ports get initialized now. */ 4532 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4533 LPFC_SLI_INTF_IF_TYPE_2) { 4534 rc = lpfc_pci_function_reset(phba); 4535 if (unlikely(rc)) 4536 return -ENODEV; 4537 } 4538 4539 /* Create the bootstrap mailbox command */ 4540 rc = lpfc_create_bootstrap_mbox(phba); 4541 if (unlikely(rc)) 4542 goto out_free_mem; 4543 4544 /* Set up the host's endian order with the device. */ 4545 rc = lpfc_setup_endian_order(phba); 4546 if (unlikely(rc)) 4547 goto out_free_bsmbx; 4548 4549 /* Set up the hba's configuration parameters. */ 4550 rc = lpfc_sli4_read_config(phba); 4551 if (unlikely(rc)) 4552 goto out_free_bsmbx; 4553 4554 /* IF Type 0 ports get initialized now. */ 4555 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4556 LPFC_SLI_INTF_IF_TYPE_0) { 4557 rc = lpfc_pci_function_reset(phba); 4558 if (unlikely(rc)) 4559 goto out_free_bsmbx; 4560 } 4561 4562 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4563 GFP_KERNEL); 4564 if (!mboxq) { 4565 rc = -ENOMEM; 4566 goto out_free_bsmbx; 4567 } 4568 4569 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4570 lpfc_supported_pages(mboxq); 4571 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4572 if (!rc) { 4573 mqe = &mboxq->u.mqe; 4574 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4575 LPFC_MAX_SUPPORTED_PAGES); 4576 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4577 switch (pn_page[i]) { 4578 case LPFC_SLI4_PARAMETERS: 4579 phba->sli4_hba.pc_sli4_params.supported = 1; 4580 break; 4581 default: 4582 break; 4583 } 4584 } 4585 /* Read the port's SLI4 Parameters capabilities if supported. */ 4586 if (phba->sli4_hba.pc_sli4_params.supported) 4587 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4588 if (rc) { 4589 mempool_free(mboxq, phba->mbox_mem_pool); 4590 rc = -EIO; 4591 goto out_free_bsmbx; 4592 } 4593 } 4594 /* 4595 * Get sli4 parameters that override parameters from Port capabilities. 4596 * If this call fails, it isn't critical unless the SLI4 parameters come 4597 * back in conflict. 4598 */ 4599 rc = lpfc_get_sli4_parameters(phba, mboxq); 4600 if (rc) { 4601 if (phba->sli4_hba.extents_in_use && 4602 phba->sli4_hba.rpi_hdrs_in_use) { 4603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4604 "2999 Unsupported SLI4 Parameters " 4605 "Extents and RPI headers enabled.\n"); 4606 goto out_free_bsmbx; 4607 } 4608 } 4609 mempool_free(mboxq, phba->mbox_mem_pool); 4610 /* Verify all the SLI4 queues */ 4611 rc = lpfc_sli4_queue_verify(phba); 4612 if (rc) 4613 goto out_free_bsmbx; 4614 4615 /* Create driver internal CQE event pool */ 4616 rc = lpfc_sli4_cq_event_pool_create(phba); 4617 if (rc) 4618 goto out_free_bsmbx; 4619 4620 /* Initialize and populate the iocb list per host */ 4621 rc = lpfc_init_sgl_list(phba); 4622 if (rc) { 4623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4624 "1400 Failed to initialize sgl list.\n"); 4625 goto out_destroy_cq_event_pool; 4626 } 4627 rc = lpfc_init_active_sgl_array(phba); 4628 if (rc) { 4629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4630 "1430 Failed to initialize sgl list.\n"); 4631 goto out_free_sgl_list; 4632 } 4633 rc = lpfc_sli4_init_rpi_hdrs(phba); 4634 if (rc) { 4635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4636 "1432 Failed to initialize rpi headers.\n"); 4637 goto out_free_active_sgl; 4638 } 4639 4640 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4641 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4642 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4643 GFP_KERNEL); 4644 if (!phba->fcf.fcf_rr_bmask) { 4645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4646 "2759 Failed allocate memory for FCF round " 4647 "robin failover bmask\n"); 4648 rc = -ENOMEM; 4649 goto out_remove_rpi_hdrs; 4650 } 4651 4652 /* 4653 * The cfg_fcp_eq_count can be zero whenever there is exactly one 4654 * interrupt vector. This is not an error 4655 */ 4656 if (phba->cfg_fcp_eq_count) { 4657 phba->sli4_hba.fcp_eq_hdl = 4658 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4659 phba->cfg_fcp_eq_count), GFP_KERNEL); 4660 if (!phba->sli4_hba.fcp_eq_hdl) { 4661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4662 "2572 Failed allocate memory for " 4663 "fast-path per-EQ handle array\n"); 4664 rc = -ENOMEM; 4665 goto out_free_fcf_rr_bmask; 4666 } 4667 } 4668 4669 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4670 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4671 if (!phba->sli4_hba.msix_entries) { 4672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4673 "2573 Failed allocate memory for msi-x " 4674 "interrupt vector entries\n"); 4675 rc = -ENOMEM; 4676 goto out_free_fcp_eq_hdl; 4677 } 4678 4679 /* 4680 * Enable sr-iov virtual functions if supported and configured 4681 * through the module parameter. 4682 */ 4683 if (phba->cfg_sriov_nr_virtfn > 0) { 4684 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4685 phba->cfg_sriov_nr_virtfn); 4686 if (rc) { 4687 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4688 "3020 Requested number of SR-IOV " 4689 "virtual functions (%d) is not " 4690 "supported\n", 4691 phba->cfg_sriov_nr_virtfn); 4692 phba->cfg_sriov_nr_virtfn = 0; 4693 } 4694 } 4695 4696 return 0; 4697 4698out_free_fcp_eq_hdl: 4699 kfree(phba->sli4_hba.fcp_eq_hdl); 4700out_free_fcf_rr_bmask: 4701 kfree(phba->fcf.fcf_rr_bmask); 4702out_remove_rpi_hdrs: 4703 lpfc_sli4_remove_rpi_hdrs(phba); 4704out_free_active_sgl: 4705 lpfc_free_active_sgl(phba); 4706out_free_sgl_list: 4707 lpfc_free_sgl_list(phba); 4708out_destroy_cq_event_pool: 4709 lpfc_sli4_cq_event_pool_destroy(phba); 4710out_free_bsmbx: 4711 lpfc_destroy_bootstrap_mbox(phba); 4712out_free_mem: 4713 lpfc_mem_free(phba); 4714 return rc; 4715} 4716 4717/** 4718 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4719 * @phba: pointer to lpfc hba data structure. 4720 * 4721 * This routine is invoked to unset the driver internal resources set up 4722 * specific for supporting the SLI-4 HBA device it attached to. 4723 **/ 4724static void 4725lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4726{ 4727 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4728 4729 /* Free memory allocated for msi-x interrupt vector entries */ 4730 kfree(phba->sli4_hba.msix_entries); 4731 4732 /* Free memory allocated for fast-path work queue handles */ 4733 kfree(phba->sli4_hba.fcp_eq_hdl); 4734 4735 /* Free the allocated rpi headers. */ 4736 lpfc_sli4_remove_rpi_hdrs(phba); 4737 lpfc_sli4_remove_rpis(phba); 4738 4739 /* Free eligible FCF index bmask */ 4740 kfree(phba->fcf.fcf_rr_bmask); 4741 4742 /* Free the ELS sgl list */ 4743 lpfc_free_active_sgl(phba); 4744 lpfc_free_sgl_list(phba); 4745 4746 /* Free the SCSI sgl management array */ 4747 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4748 4749 /* Free the completion queue EQ event pool */ 4750 lpfc_sli4_cq_event_release_all(phba); 4751 lpfc_sli4_cq_event_pool_destroy(phba); 4752 4753 /* Release resource identifiers. */ 4754 lpfc_sli4_dealloc_resource_identifiers(phba); 4755 4756 /* Free the bsmbx region. */ 4757 lpfc_destroy_bootstrap_mbox(phba); 4758 4759 /* Free the SLI Layer memory with SLI4 HBAs */ 4760 lpfc_mem_free_all(phba); 4761 4762 /* Free the current connect table */ 4763 list_for_each_entry_safe(conn_entry, next_conn_entry, 4764 &phba->fcf_conn_rec_list, list) { 4765 list_del_init(&conn_entry->list); 4766 kfree(conn_entry); 4767 } 4768 4769 return; 4770} 4771 4772/** 4773 * lpfc_init_api_table_setup - Set up init api function jump table 4774 * @phba: The hba struct for which this call is being executed. 4775 * @dev_grp: The HBA PCI-Device group number. 4776 * 4777 * This routine sets up the device INIT interface API function jump table 4778 * in @phba struct. 4779 * 4780 * Returns: 0 - success, -ENODEV - failure. 4781 **/ 4782int 4783lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4784{ 4785 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4786 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4787 phba->lpfc_selective_reset = lpfc_selective_reset; 4788 switch (dev_grp) { 4789 case LPFC_PCI_DEV_LP: 4790 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4791 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4792 phba->lpfc_stop_port = lpfc_stop_port_s3; 4793 break; 4794 case LPFC_PCI_DEV_OC: 4795 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4796 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4797 phba->lpfc_stop_port = lpfc_stop_port_s4; 4798 break; 4799 default: 4800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4801 "1431 Invalid HBA PCI-device group: 0x%x\n", 4802 dev_grp); 4803 return -ENODEV; 4804 break; 4805 } 4806 return 0; 4807} 4808 4809/** 4810 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4811 * @phba: pointer to lpfc hba data structure. 4812 * 4813 * This routine is invoked to set up the driver internal resources before the 4814 * device specific resource setup to support the HBA device it attached to. 4815 * 4816 * Return codes 4817 * 0 - successful 4818 * other values - error 4819 **/ 4820static int 4821lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4822{ 4823 /* 4824 * Driver resources common to all SLI revisions 4825 */ 4826 atomic_set(&phba->fast_event_count, 0); 4827 spin_lock_init(&phba->hbalock); 4828 4829 /* Initialize ndlp management spinlock */ 4830 spin_lock_init(&phba->ndlp_lock); 4831 4832 INIT_LIST_HEAD(&phba->port_list); 4833 INIT_LIST_HEAD(&phba->work_list); 4834 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4835 4836 /* Initialize the wait queue head for the kernel thread */ 4837 init_waitqueue_head(&phba->work_waitq); 4838 4839 /* Initialize the scsi buffer list used by driver for scsi IO */ 4840 spin_lock_init(&phba->scsi_buf_list_lock); 4841 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4842 4843 /* Initialize the fabric iocb list */ 4844 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4845 4846 /* Initialize list to save ELS buffers */ 4847 INIT_LIST_HEAD(&phba->elsbuf); 4848 4849 /* Initialize FCF connection rec list */ 4850 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4851 4852 return 0; 4853} 4854 4855/** 4856 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4857 * @phba: pointer to lpfc hba data structure. 4858 * 4859 * This routine is invoked to set up the driver internal resources after the 4860 * device specific resource setup to support the HBA device it attached to. 4861 * 4862 * Return codes 4863 * 0 - successful 4864 * other values - error 4865 **/ 4866static int 4867lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4868{ 4869 int error; 4870 4871 /* Startup the kernel thread for this host adapter. */ 4872 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4873 "lpfc_worker_%d", phba->brd_no); 4874 if (IS_ERR(phba->worker_thread)) { 4875 error = PTR_ERR(phba->worker_thread); 4876 return error; 4877 } 4878 4879 return 0; 4880} 4881 4882/** 4883 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4884 * @phba: pointer to lpfc hba data structure. 4885 * 4886 * This routine is invoked to unset the driver internal resources set up after 4887 * the device specific resource setup for supporting the HBA device it 4888 * attached to. 4889 **/ 4890static void 4891lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4892{ 4893 /* Stop kernel worker thread */ 4894 kthread_stop(phba->worker_thread); 4895} 4896 4897/** 4898 * lpfc_free_iocb_list - Free iocb list. 4899 * @phba: pointer to lpfc hba data structure. 4900 * 4901 * This routine is invoked to free the driver's IOCB list and memory. 4902 **/ 4903static void 4904lpfc_free_iocb_list(struct lpfc_hba *phba) 4905{ 4906 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4907 4908 spin_lock_irq(&phba->hbalock); 4909 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4910 &phba->lpfc_iocb_list, list) { 4911 list_del(&iocbq_entry->list); 4912 kfree(iocbq_entry); 4913 phba->total_iocbq_bufs--; 4914 } 4915 spin_unlock_irq(&phba->hbalock); 4916 4917 return; 4918} 4919 4920/** 4921 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4922 * @phba: pointer to lpfc hba data structure. 4923 * 4924 * This routine is invoked to allocate and initizlize the driver's IOCB 4925 * list and set up the IOCB tag array accordingly. 4926 * 4927 * Return codes 4928 * 0 - successful 4929 * other values - error 4930 **/ 4931static int 4932lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4933{ 4934 struct lpfc_iocbq *iocbq_entry = NULL; 4935 uint16_t iotag; 4936 int i; 4937 4938 /* Initialize and populate the iocb list per host. */ 4939 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4940 for (i = 0; i < iocb_count; i++) { 4941 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4942 if (iocbq_entry == NULL) { 4943 printk(KERN_ERR "%s: only allocated %d iocbs of " 4944 "expected %d count. Unloading driver.\n", 4945 __func__, i, LPFC_IOCB_LIST_CNT); 4946 goto out_free_iocbq; 4947 } 4948 4949 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4950 if (iotag == 0) { 4951 kfree(iocbq_entry); 4952 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4953 "Unloading driver.\n", __func__); 4954 goto out_free_iocbq; 4955 } 4956 iocbq_entry->sli4_lxritag = NO_XRI; 4957 iocbq_entry->sli4_xritag = NO_XRI; 4958 4959 spin_lock_irq(&phba->hbalock); 4960 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4961 phba->total_iocbq_bufs++; 4962 spin_unlock_irq(&phba->hbalock); 4963 } 4964 4965 return 0; 4966 4967out_free_iocbq: 4968 lpfc_free_iocb_list(phba); 4969 4970 return -ENOMEM; 4971} 4972 4973/** 4974 * lpfc_free_sgl_list - Free sgl list. 4975 * @phba: pointer to lpfc hba data structure. 4976 * 4977 * This routine is invoked to free the driver's sgl list and memory. 4978 **/ 4979static void 4980lpfc_free_sgl_list(struct lpfc_hba *phba) 4981{ 4982 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4983 LIST_HEAD(sglq_list); 4984 4985 spin_lock_irq(&phba->hbalock); 4986 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4987 spin_unlock_irq(&phba->hbalock); 4988 4989 list_for_each_entry_safe(sglq_entry, sglq_next, 4990 &sglq_list, list) { 4991 list_del(&sglq_entry->list); 4992 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4993 kfree(sglq_entry); 4994 phba->sli4_hba.total_sglq_bufs--; 4995 } 4996 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4997} 4998 4999/** 5000 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5001 * @phba: pointer to lpfc hba data structure. 5002 * 5003 * This routine is invoked to allocate the driver's active sgl memory. 5004 * This array will hold the sglq_entry's for active IOs. 5005 **/ 5006static int 5007lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5008{ 5009 int size; 5010 size = sizeof(struct lpfc_sglq *); 5011 size *= phba->sli4_hba.max_cfg_param.max_xri; 5012 5013 phba->sli4_hba.lpfc_sglq_active_list = 5014 kzalloc(size, GFP_KERNEL); 5015 if (!phba->sli4_hba.lpfc_sglq_active_list) 5016 return -ENOMEM; 5017 return 0; 5018} 5019 5020/** 5021 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5022 * @phba: pointer to lpfc hba data structure. 5023 * 5024 * This routine is invoked to walk through the array of active sglq entries 5025 * and free all of the resources. 5026 * This is just a place holder for now. 5027 **/ 5028static void 5029lpfc_free_active_sgl(struct lpfc_hba *phba) 5030{ 5031 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5032} 5033 5034/** 5035 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5036 * @phba: pointer to lpfc hba data structure. 5037 * 5038 * This routine is invoked to allocate and initizlize the driver's sgl 5039 * list and set up the sgl xritag tag array accordingly. 5040 * 5041 * Return codes 5042 * 0 - successful 5043 * other values - error 5044 **/ 5045static int 5046lpfc_init_sgl_list(struct lpfc_hba *phba) 5047{ 5048 struct lpfc_sglq *sglq_entry = NULL; 5049 int i; 5050 int els_xri_cnt; 5051 5052 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 5053 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5054 "2400 ELS XRI count %d.\n", 5055 els_xri_cnt); 5056 /* Initialize and populate the sglq list per host/VF. */ 5057 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5058 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5059 5060 /* Sanity check on XRI management */ 5061 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 5062 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5063 "2562 No room left for SCSI XRI allocation: " 5064 "max_xri=%d, els_xri=%d\n", 5065 phba->sli4_hba.max_cfg_param.max_xri, 5066 els_xri_cnt); 5067 return -ENOMEM; 5068 } 5069 5070 /* Allocate memory for the ELS XRI management array */ 5071 phba->sli4_hba.lpfc_els_sgl_array = 5072 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 5073 GFP_KERNEL); 5074 5075 if (!phba->sli4_hba.lpfc_els_sgl_array) { 5076 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5077 "2401 Failed to allocate memory for ELS " 5078 "XRI management array of size %d.\n", 5079 els_xri_cnt); 5080 return -ENOMEM; 5081 } 5082 5083 /* Keep the SCSI XRI into the XRI management array */ 5084 phba->sli4_hba.scsi_xri_max = 5085 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 5086 phba->sli4_hba.scsi_xri_cnt = 0; 5087 phba->sli4_hba.lpfc_scsi_psb_array = 5088 kzalloc((sizeof(struct lpfc_scsi_buf *) * 5089 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 5090 5091 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 5092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5093 "2563 Failed to allocate memory for SCSI " 5094 "XRI management array of size %d.\n", 5095 phba->sli4_hba.scsi_xri_max); 5096 kfree(phba->sli4_hba.lpfc_els_sgl_array); 5097 return -ENOMEM; 5098 } 5099 5100 for (i = 0; i < els_xri_cnt; i++) { 5101 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 5102 if (sglq_entry == NULL) { 5103 printk(KERN_ERR "%s: only allocated %d sgls of " 5104 "expected %d count. Unloading driver.\n", 5105 __func__, i, els_xri_cnt); 5106 goto out_free_mem; 5107 } 5108 5109 sglq_entry->buff_type = GEN_BUFF_TYPE; 5110 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 5111 if (sglq_entry->virt == NULL) { 5112 kfree(sglq_entry); 5113 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 5114 "Unloading driver.\n", __func__); 5115 goto out_free_mem; 5116 } 5117 sglq_entry->sgl = sglq_entry->virt; 5118 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 5119 5120 /* The list order is used by later block SGL registraton */ 5121 spin_lock_irq(&phba->hbalock); 5122 sglq_entry->state = SGL_FREED; 5123 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 5124 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 5125 phba->sli4_hba.total_sglq_bufs++; 5126 spin_unlock_irq(&phba->hbalock); 5127 } 5128 return 0; 5129 5130out_free_mem: 5131 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 5132 lpfc_free_sgl_list(phba); 5133 return -ENOMEM; 5134} 5135 5136/** 5137 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5138 * @phba: pointer to lpfc hba data structure. 5139 * 5140 * This routine is invoked to post rpi header templates to the 5141 * port for those SLI4 ports that do not support extents. This routine 5142 * posts a PAGE_SIZE memory region to the port to hold up to 5143 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5144 * and should be called only when interrupts are disabled. 5145 * 5146 * Return codes 5147 * 0 - successful 5148 * -ERROR - otherwise. 5149 **/ 5150int 5151lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5152{ 5153 int rc = 0; 5154 struct lpfc_rpi_hdr *rpi_hdr; 5155 5156 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5157 if (!phba->sli4_hba.rpi_hdrs_in_use) 5158 return rc; 5159 if (phba->sli4_hba.extents_in_use) 5160 return -EIO; 5161 5162 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5163 if (!rpi_hdr) { 5164 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5165 "0391 Error during rpi post operation\n"); 5166 lpfc_sli4_remove_rpis(phba); 5167 rc = -ENODEV; 5168 } 5169 5170 return rc; 5171} 5172 5173/** 5174 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5175 * @phba: pointer to lpfc hba data structure. 5176 * 5177 * This routine is invoked to allocate a single 4KB memory region to 5178 * support rpis and stores them in the phba. This single region 5179 * provides support for up to 64 rpis. The region is used globally 5180 * by the device. 5181 * 5182 * Returns: 5183 * A valid rpi hdr on success. 5184 * A NULL pointer on any failure. 5185 **/ 5186struct lpfc_rpi_hdr * 5187lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5188{ 5189 uint16_t rpi_limit, curr_rpi_range; 5190 struct lpfc_dmabuf *dmabuf; 5191 struct lpfc_rpi_hdr *rpi_hdr; 5192 uint32_t rpi_count; 5193 5194 /* 5195 * If the SLI4 port supports extents, posting the rpi header isn't 5196 * required. Set the expected maximum count and let the actual value 5197 * get set when extents are fully allocated. 5198 */ 5199 if (!phba->sli4_hba.rpi_hdrs_in_use) 5200 return NULL; 5201 if (phba->sli4_hba.extents_in_use) 5202 return NULL; 5203 5204 /* The limit on the logical index is just the max_rpi count. */ 5205 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5206 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5207 5208 spin_lock_irq(&phba->hbalock); 5209 /* 5210 * Establish the starting RPI in this header block. The starting 5211 * rpi is normalized to a zero base because the physical rpi is 5212 * port based. 5213 */ 5214 curr_rpi_range = phba->sli4_hba.next_rpi - 5215 phba->sli4_hba.max_cfg_param.rpi_base; 5216 spin_unlock_irq(&phba->hbalock); 5217 5218 /* 5219 * The port has a limited number of rpis. The increment here 5220 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5221 * and to allow the full max_rpi range per port. 5222 */ 5223 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5224 rpi_count = rpi_limit - curr_rpi_range; 5225 else 5226 rpi_count = LPFC_RPI_HDR_COUNT; 5227 5228 if (!rpi_count) 5229 return NULL; 5230 /* 5231 * First allocate the protocol header region for the port. The 5232 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5233 */ 5234 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5235 if (!dmabuf) 5236 return NULL; 5237 5238 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5239 LPFC_HDR_TEMPLATE_SIZE, 5240 &dmabuf->phys, 5241 GFP_KERNEL); 5242 if (!dmabuf->virt) { 5243 rpi_hdr = NULL; 5244 goto err_free_dmabuf; 5245 } 5246 5247 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5248 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5249 rpi_hdr = NULL; 5250 goto err_free_coherent; 5251 } 5252 5253 /* Save the rpi header data for cleanup later. */ 5254 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5255 if (!rpi_hdr) 5256 goto err_free_coherent; 5257 5258 rpi_hdr->dmabuf = dmabuf; 5259 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5260 rpi_hdr->page_count = 1; 5261 spin_lock_irq(&phba->hbalock); 5262 5263 /* The rpi_hdr stores the logical index only. */ 5264 rpi_hdr->start_rpi = curr_rpi_range; 5265 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5266 5267 /* 5268 * The next_rpi stores the next logical module-64 rpi value used 5269 * to post physical rpis in subsequent rpi postings. 5270 */ 5271 phba->sli4_hba.next_rpi += rpi_count; 5272 spin_unlock_irq(&phba->hbalock); 5273 return rpi_hdr; 5274 5275 err_free_coherent: 5276 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5277 dmabuf->virt, dmabuf->phys); 5278 err_free_dmabuf: 5279 kfree(dmabuf); 5280 return NULL; 5281} 5282 5283/** 5284 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5285 * @phba: pointer to lpfc hba data structure. 5286 * 5287 * This routine is invoked to remove all memory resources allocated 5288 * to support rpis for SLI4 ports not supporting extents. This routine 5289 * presumes the caller has released all rpis consumed by fabric or port 5290 * logins and is prepared to have the header pages removed. 5291 **/ 5292void 5293lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5294{ 5295 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5296 5297 if (!phba->sli4_hba.rpi_hdrs_in_use) 5298 goto exit; 5299 5300 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5301 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5302 list_del(&rpi_hdr->list); 5303 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5304 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5305 kfree(rpi_hdr->dmabuf); 5306 kfree(rpi_hdr); 5307 } 5308 exit: 5309 /* There are no rpis available to the port now. */ 5310 phba->sli4_hba.next_rpi = 0; 5311} 5312 5313/** 5314 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5315 * @pdev: pointer to pci device data structure. 5316 * 5317 * This routine is invoked to allocate the driver hba data structure for an 5318 * HBA device. If the allocation is successful, the phba reference to the 5319 * PCI device data structure is set. 5320 * 5321 * Return codes 5322 * pointer to @phba - successful 5323 * NULL - error 5324 **/ 5325static struct lpfc_hba * 5326lpfc_hba_alloc(struct pci_dev *pdev) 5327{ 5328 struct lpfc_hba *phba; 5329 5330 /* Allocate memory for HBA structure */ 5331 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5332 if (!phba) { 5333 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5334 return NULL; 5335 } 5336 5337 /* Set reference to PCI device in HBA structure */ 5338 phba->pcidev = pdev; 5339 5340 /* Assign an unused board number */ 5341 phba->brd_no = lpfc_get_instance(); 5342 if (phba->brd_no < 0) { 5343 kfree(phba); 5344 return NULL; 5345 } 5346 5347 spin_lock_init(&phba->ct_ev_lock); 5348 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5349 5350 return phba; 5351} 5352 5353/** 5354 * lpfc_hba_free - Free driver hba data structure with a device. 5355 * @phba: pointer to lpfc hba data structure. 5356 * 5357 * This routine is invoked to free the driver hba data structure with an 5358 * HBA device. 5359 **/ 5360static void 5361lpfc_hba_free(struct lpfc_hba *phba) 5362{ 5363 /* Release the driver assigned board number */ 5364 idr_remove(&lpfc_hba_index, phba->brd_no); 5365 5366 kfree(phba); 5367 return; 5368} 5369 5370/** 5371 * lpfc_create_shost - Create hba physical port with associated scsi host. 5372 * @phba: pointer to lpfc hba data structure. 5373 * 5374 * This routine is invoked to create HBA physical port and associate a SCSI 5375 * host with it. 5376 * 5377 * Return codes 5378 * 0 - successful 5379 * other values - error 5380 **/ 5381static int 5382lpfc_create_shost(struct lpfc_hba *phba) 5383{ 5384 struct lpfc_vport *vport; 5385 struct Scsi_Host *shost; 5386 5387 /* Initialize HBA FC structure */ 5388 phba->fc_edtov = FF_DEF_EDTOV; 5389 phba->fc_ratov = FF_DEF_RATOV; 5390 phba->fc_altov = FF_DEF_ALTOV; 5391 phba->fc_arbtov = FF_DEF_ARBTOV; 5392 5393 atomic_set(&phba->sdev_cnt, 0); 5394 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5395 if (!vport) 5396 return -ENODEV; 5397 5398 shost = lpfc_shost_from_vport(vport); 5399 phba->pport = vport; 5400 lpfc_debugfs_initialize(vport); 5401 /* Put reference to SCSI host to driver's device private data */ 5402 pci_set_drvdata(phba->pcidev, shost); 5403 5404 return 0; 5405} 5406 5407/** 5408 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5409 * @phba: pointer to lpfc hba data structure. 5410 * 5411 * This routine is invoked to destroy HBA physical port and the associated 5412 * SCSI host. 5413 **/ 5414static void 5415lpfc_destroy_shost(struct lpfc_hba *phba) 5416{ 5417 struct lpfc_vport *vport = phba->pport; 5418 5419 /* Destroy physical port that associated with the SCSI host */ 5420 destroy_port(vport); 5421 5422 return; 5423} 5424 5425/** 5426 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5427 * @phba: pointer to lpfc hba data structure. 5428 * @shost: the shost to be used to detect Block guard settings. 5429 * 5430 * This routine sets up the local Block guard protocol settings for @shost. 5431 * This routine also allocates memory for debugging bg buffers. 5432 **/ 5433static void 5434lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5435{ 5436 int pagecnt = 10; 5437 if (lpfc_prot_mask && lpfc_prot_guard) { 5438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5439 "1478 Registering BlockGuard with the " 5440 "SCSI layer\n"); 5441 scsi_host_set_prot(shost, lpfc_prot_mask); 5442 scsi_host_set_guard(shost, lpfc_prot_guard); 5443 } 5444 if (!_dump_buf_data) { 5445 while (pagecnt) { 5446 spin_lock_init(&_dump_buf_lock); 5447 _dump_buf_data = 5448 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5449 if (_dump_buf_data) { 5450 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5451 "9043 BLKGRD: allocated %d pages for " 5452 "_dump_buf_data at 0x%p\n", 5453 (1 << pagecnt), _dump_buf_data); 5454 _dump_buf_data_order = pagecnt; 5455 memset(_dump_buf_data, 0, 5456 ((1 << PAGE_SHIFT) << pagecnt)); 5457 break; 5458 } else 5459 --pagecnt; 5460 } 5461 if (!_dump_buf_data_order) 5462 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5463 "9044 BLKGRD: ERROR unable to allocate " 5464 "memory for hexdump\n"); 5465 } else 5466 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5467 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5468 "\n", _dump_buf_data); 5469 if (!_dump_buf_dif) { 5470 while (pagecnt) { 5471 _dump_buf_dif = 5472 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5473 if (_dump_buf_dif) { 5474 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5475 "9046 BLKGRD: allocated %d pages for " 5476 "_dump_buf_dif at 0x%p\n", 5477 (1 << pagecnt), _dump_buf_dif); 5478 _dump_buf_dif_order = pagecnt; 5479 memset(_dump_buf_dif, 0, 5480 ((1 << PAGE_SHIFT) << pagecnt)); 5481 break; 5482 } else 5483 --pagecnt; 5484 } 5485 if (!_dump_buf_dif_order) 5486 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5487 "9047 BLKGRD: ERROR unable to allocate " 5488 "memory for hexdump\n"); 5489 } else 5490 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5491 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5492 _dump_buf_dif); 5493} 5494 5495/** 5496 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5497 * @phba: pointer to lpfc hba data structure. 5498 * 5499 * This routine is invoked to perform all the necessary post initialization 5500 * setup for the device. 5501 **/ 5502static void 5503lpfc_post_init_setup(struct lpfc_hba *phba) 5504{ 5505 struct Scsi_Host *shost; 5506 struct lpfc_adapter_event_header adapter_event; 5507 5508 /* Get the default values for Model Name and Description */ 5509 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5510 5511 /* 5512 * hba setup may have changed the hba_queue_depth so we need to 5513 * adjust the value of can_queue. 5514 */ 5515 shost = pci_get_drvdata(phba->pcidev); 5516 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5517 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5518 lpfc_setup_bg(phba, shost); 5519 5520 lpfc_host_attrib_init(shost); 5521 5522 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5523 spin_lock_irq(shost->host_lock); 5524 lpfc_poll_start_timer(phba); 5525 spin_unlock_irq(shost->host_lock); 5526 } 5527 5528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5529 "0428 Perform SCSI scan\n"); 5530 /* Send board arrival event to upper layer */ 5531 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5532 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5533 fc_host_post_vendor_event(shost, fc_get_event_number(), 5534 sizeof(adapter_event), 5535 (char *) &adapter_event, 5536 LPFC_NL_VENDOR_ID); 5537 return; 5538} 5539 5540/** 5541 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5542 * @phba: pointer to lpfc hba data structure. 5543 * 5544 * This routine is invoked to set up the PCI device memory space for device 5545 * with SLI-3 interface spec. 5546 * 5547 * Return codes 5548 * 0 - successful 5549 * other values - error 5550 **/ 5551static int 5552lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5553{ 5554 struct pci_dev *pdev; 5555 unsigned long bar0map_len, bar2map_len; 5556 int i, hbq_count; 5557 void *ptr; 5558 int error = -ENODEV; 5559 5560 /* Obtain PCI device reference */ 5561 if (!phba->pcidev) 5562 return error; 5563 else 5564 pdev = phba->pcidev; 5565 5566 /* Set the device DMA mask size */ 5567 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5568 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5569 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5570 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5571 return error; 5572 } 5573 } 5574 5575 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5576 * required by each mapping. 5577 */ 5578 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5579 bar0map_len = pci_resource_len(pdev, 0); 5580 5581 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5582 bar2map_len = pci_resource_len(pdev, 2); 5583 5584 /* Map HBA SLIM to a kernel virtual address. */ 5585 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5586 if (!phba->slim_memmap_p) { 5587 dev_printk(KERN_ERR, &pdev->dev, 5588 "ioremap failed for SLIM memory.\n"); 5589 goto out; 5590 } 5591 5592 /* Map HBA Control Registers to a kernel virtual address. */ 5593 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5594 if (!phba->ctrl_regs_memmap_p) { 5595 dev_printk(KERN_ERR, &pdev->dev, 5596 "ioremap failed for HBA control registers.\n"); 5597 goto out_iounmap_slim; 5598 } 5599 5600 /* Allocate memory for SLI-2 structures */ 5601 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5602 SLI2_SLIM_SIZE, 5603 &phba->slim2p.phys, 5604 GFP_KERNEL); 5605 if (!phba->slim2p.virt) 5606 goto out_iounmap; 5607 5608 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5609 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5610 phba->mbox_ext = (phba->slim2p.virt + 5611 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5612 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5613 phba->IOCBs = (phba->slim2p.virt + 5614 offsetof(struct lpfc_sli2_slim, IOCBs)); 5615 5616 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5617 lpfc_sli_hbq_size(), 5618 &phba->hbqslimp.phys, 5619 GFP_KERNEL); 5620 if (!phba->hbqslimp.virt) 5621 goto out_free_slim; 5622 5623 hbq_count = lpfc_sli_hbq_count(); 5624 ptr = phba->hbqslimp.virt; 5625 for (i = 0; i < hbq_count; ++i) { 5626 phba->hbqs[i].hbq_virt = ptr; 5627 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5628 ptr += (lpfc_hbq_defs[i]->entry_count * 5629 sizeof(struct lpfc_hbq_entry)); 5630 } 5631 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5632 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5633 5634 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5635 5636 INIT_LIST_HEAD(&phba->rb_pend_list); 5637 5638 phba->MBslimaddr = phba->slim_memmap_p; 5639 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5640 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5641 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5642 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5643 5644 return 0; 5645 5646out_free_slim: 5647 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5648 phba->slim2p.virt, phba->slim2p.phys); 5649out_iounmap: 5650 iounmap(phba->ctrl_regs_memmap_p); 5651out_iounmap_slim: 5652 iounmap(phba->slim_memmap_p); 5653out: 5654 return error; 5655} 5656 5657/** 5658 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5659 * @phba: pointer to lpfc hba data structure. 5660 * 5661 * This routine is invoked to unset the PCI device memory space for device 5662 * with SLI-3 interface spec. 5663 **/ 5664static void 5665lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5666{ 5667 struct pci_dev *pdev; 5668 5669 /* Obtain PCI device reference */ 5670 if (!phba->pcidev) 5671 return; 5672 else 5673 pdev = phba->pcidev; 5674 5675 /* Free coherent DMA memory allocated */ 5676 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5677 phba->hbqslimp.virt, phba->hbqslimp.phys); 5678 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5679 phba->slim2p.virt, phba->slim2p.phys); 5680 5681 /* I/O memory unmap */ 5682 iounmap(phba->ctrl_regs_memmap_p); 5683 iounmap(phba->slim_memmap_p); 5684 5685 return; 5686} 5687 5688/** 5689 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5690 * @phba: pointer to lpfc hba data structure. 5691 * 5692 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5693 * done and check status. 5694 * 5695 * Return 0 if successful, otherwise -ENODEV. 5696 **/ 5697int 5698lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5699{ 5700 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5701 struct lpfc_register reg_data; 5702 int i, port_error = 0; 5703 uint32_t if_type; 5704 5705 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5706 memset(®_data, 0, sizeof(reg_data)); 5707 if (!phba->sli4_hba.PSMPHRregaddr) 5708 return -ENODEV; 5709 5710 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5711 for (i = 0; i < 3000; i++) { 5712 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5713 &portsmphr_reg.word0) || 5714 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5715 /* Port has a fatal POST error, break out */ 5716 port_error = -ENODEV; 5717 break; 5718 } 5719 if (LPFC_POST_STAGE_PORT_READY == 5720 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5721 break; 5722 msleep(10); 5723 } 5724 5725 /* 5726 * If there was a port error during POST, then don't proceed with 5727 * other register reads as the data may not be valid. Just exit. 5728 */ 5729 if (port_error) { 5730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5731 "1408 Port Failed POST - portsmphr=0x%x, " 5732 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5733 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5734 portsmphr_reg.word0, 5735 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5736 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5737 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5738 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5739 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5740 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5741 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5742 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5743 } else { 5744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5745 "2534 Device Info: SLIFamily=0x%x, " 5746 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5747 "SLIHint_2=0x%x, FT=0x%x\n", 5748 bf_get(lpfc_sli_intf_sli_family, 5749 &phba->sli4_hba.sli_intf), 5750 bf_get(lpfc_sli_intf_slirev, 5751 &phba->sli4_hba.sli_intf), 5752 bf_get(lpfc_sli_intf_if_type, 5753 &phba->sli4_hba.sli_intf), 5754 bf_get(lpfc_sli_intf_sli_hint1, 5755 &phba->sli4_hba.sli_intf), 5756 bf_get(lpfc_sli_intf_sli_hint2, 5757 &phba->sli4_hba.sli_intf), 5758 bf_get(lpfc_sli_intf_func_type, 5759 &phba->sli4_hba.sli_intf)); 5760 /* 5761 * Check for other Port errors during the initialization 5762 * process. Fail the load if the port did not come up 5763 * correctly. 5764 */ 5765 if_type = bf_get(lpfc_sli_intf_if_type, 5766 &phba->sli4_hba.sli_intf); 5767 switch (if_type) { 5768 case LPFC_SLI_INTF_IF_TYPE_0: 5769 phba->sli4_hba.ue_mask_lo = 5770 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5771 phba->sli4_hba.ue_mask_hi = 5772 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5773 uerrlo_reg.word0 = 5774 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5775 uerrhi_reg.word0 = 5776 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5777 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5778 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5780 "1422 Unrecoverable Error " 5781 "Detected during POST " 5782 "uerr_lo_reg=0x%x, " 5783 "uerr_hi_reg=0x%x, " 5784 "ue_mask_lo_reg=0x%x, " 5785 "ue_mask_hi_reg=0x%x\n", 5786 uerrlo_reg.word0, 5787 uerrhi_reg.word0, 5788 phba->sli4_hba.ue_mask_lo, 5789 phba->sli4_hba.ue_mask_hi); 5790 port_error = -ENODEV; 5791 } 5792 break; 5793 case LPFC_SLI_INTF_IF_TYPE_2: 5794 /* Final checks. The port status should be clean. */ 5795 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5796 ®_data.word0) || 5797 (bf_get(lpfc_sliport_status_err, ®_data) && 5798 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5799 phba->work_status[0] = 5800 readl(phba->sli4_hba.u.if_type2. 5801 ERR1regaddr); 5802 phba->work_status[1] = 5803 readl(phba->sli4_hba.u.if_type2. 5804 ERR2regaddr); 5805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5806 "2888 Port Error Detected " 5807 "during POST: " 5808 "port status reg 0x%x, " 5809 "port_smphr reg 0x%x, " 5810 "error 1=0x%x, error 2=0x%x\n", 5811 reg_data.word0, 5812 portsmphr_reg.word0, 5813 phba->work_status[0], 5814 phba->work_status[1]); 5815 port_error = -ENODEV; 5816 } 5817 break; 5818 case LPFC_SLI_INTF_IF_TYPE_1: 5819 default: 5820 break; 5821 } 5822 } 5823 return port_error; 5824} 5825 5826/** 5827 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5828 * @phba: pointer to lpfc hba data structure. 5829 * @if_type: The SLI4 interface type getting configured. 5830 * 5831 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5832 * memory map. 5833 **/ 5834static void 5835lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5836{ 5837 switch (if_type) { 5838 case LPFC_SLI_INTF_IF_TYPE_0: 5839 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5840 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5841 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5842 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5843 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5844 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5845 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5846 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5847 phba->sli4_hba.SLIINTFregaddr = 5848 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5849 break; 5850 case LPFC_SLI_INTF_IF_TYPE_2: 5851 phba->sli4_hba.u.if_type2.ERR1regaddr = 5852 phba->sli4_hba.conf_regs_memmap_p + 5853 LPFC_CTL_PORT_ER1_OFFSET; 5854 phba->sli4_hba.u.if_type2.ERR2regaddr = 5855 phba->sli4_hba.conf_regs_memmap_p + 5856 LPFC_CTL_PORT_ER2_OFFSET; 5857 phba->sli4_hba.u.if_type2.CTRLregaddr = 5858 phba->sli4_hba.conf_regs_memmap_p + 5859 LPFC_CTL_PORT_CTL_OFFSET; 5860 phba->sli4_hba.u.if_type2.STATUSregaddr = 5861 phba->sli4_hba.conf_regs_memmap_p + 5862 LPFC_CTL_PORT_STA_OFFSET; 5863 phba->sli4_hba.SLIINTFregaddr = 5864 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5865 phba->sli4_hba.PSMPHRregaddr = 5866 phba->sli4_hba.conf_regs_memmap_p + 5867 LPFC_CTL_PORT_SEM_OFFSET; 5868 phba->sli4_hba.RQDBregaddr = 5869 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5870 phba->sli4_hba.WQDBregaddr = 5871 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5872 phba->sli4_hba.EQCQDBregaddr = 5873 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5874 phba->sli4_hba.MQDBregaddr = 5875 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5876 phba->sli4_hba.BMBXregaddr = 5877 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5878 break; 5879 case LPFC_SLI_INTF_IF_TYPE_1: 5880 default: 5881 dev_printk(KERN_ERR, &phba->pcidev->dev, 5882 "FATAL - unsupported SLI4 interface type - %d\n", 5883 if_type); 5884 break; 5885 } 5886} 5887 5888/** 5889 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5890 * @phba: pointer to lpfc hba data structure. 5891 * 5892 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5893 * memory map. 5894 **/ 5895static void 5896lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5897{ 5898 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5899 LPFC_SLIPORT_IF0_SMPHR; 5900 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5901 LPFC_HST_ISR0; 5902 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5903 LPFC_HST_IMR0; 5904 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5905 LPFC_HST_ISCR0; 5906} 5907 5908/** 5909 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5910 * @phba: pointer to lpfc hba data structure. 5911 * @vf: virtual function number 5912 * 5913 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5914 * based on the given viftual function number, @vf. 5915 * 5916 * Return 0 if successful, otherwise -ENODEV. 5917 **/ 5918static int 5919lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5920{ 5921 if (vf > LPFC_VIR_FUNC_MAX) 5922 return -ENODEV; 5923 5924 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5925 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5926 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5927 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5928 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5929 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5930 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5931 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5932 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5933 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5934 return 0; 5935} 5936 5937/** 5938 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5939 * @phba: pointer to lpfc hba data structure. 5940 * 5941 * This routine is invoked to create the bootstrap mailbox 5942 * region consistent with the SLI-4 interface spec. This 5943 * routine allocates all memory necessary to communicate 5944 * mailbox commands to the port and sets up all alignment 5945 * needs. No locks are expected to be held when calling 5946 * this routine. 5947 * 5948 * Return codes 5949 * 0 - successful 5950 * -ENOMEM - could not allocated memory. 5951 **/ 5952static int 5953lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5954{ 5955 uint32_t bmbx_size; 5956 struct lpfc_dmabuf *dmabuf; 5957 struct dma_address *dma_address; 5958 uint32_t pa_addr; 5959 uint64_t phys_addr; 5960 5961 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5962 if (!dmabuf) 5963 return -ENOMEM; 5964 5965 /* 5966 * The bootstrap mailbox region is comprised of 2 parts 5967 * plus an alignment restriction of 16 bytes. 5968 */ 5969 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5970 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5971 bmbx_size, 5972 &dmabuf->phys, 5973 GFP_KERNEL); 5974 if (!dmabuf->virt) { 5975 kfree(dmabuf); 5976 return -ENOMEM; 5977 } 5978 memset(dmabuf->virt, 0, bmbx_size); 5979 5980 /* 5981 * Initialize the bootstrap mailbox pointers now so that the register 5982 * operations are simple later. The mailbox dma address is required 5983 * to be 16-byte aligned. Also align the virtual memory as each 5984 * maibox is copied into the bmbx mailbox region before issuing the 5985 * command to the port. 5986 */ 5987 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5988 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5989 5990 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5991 LPFC_ALIGN_16_BYTE); 5992 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5993 LPFC_ALIGN_16_BYTE); 5994 5995 /* 5996 * Set the high and low physical addresses now. The SLI4 alignment 5997 * requirement is 16 bytes and the mailbox is posted to the port 5998 * as two 30-bit addresses. The other data is a bit marking whether 5999 * the 30-bit address is the high or low address. 6000 * Upcast bmbx aphys to 64bits so shift instruction compiles 6001 * clean on 32 bit machines. 6002 */ 6003 dma_address = &phba->sli4_hba.bmbx.dma_address; 6004 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6005 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6006 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6007 LPFC_BMBX_BIT1_ADDR_HI); 6008 6009 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6010 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6011 LPFC_BMBX_BIT1_ADDR_LO); 6012 return 0; 6013} 6014 6015/** 6016 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6017 * @phba: pointer to lpfc hba data structure. 6018 * 6019 * This routine is invoked to teardown the bootstrap mailbox 6020 * region and release all host resources. This routine requires 6021 * the caller to ensure all mailbox commands recovered, no 6022 * additional mailbox comands are sent, and interrupts are disabled 6023 * before calling this routine. 6024 * 6025 **/ 6026static void 6027lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6028{ 6029 dma_free_coherent(&phba->pcidev->dev, 6030 phba->sli4_hba.bmbx.bmbx_size, 6031 phba->sli4_hba.bmbx.dmabuf->virt, 6032 phba->sli4_hba.bmbx.dmabuf->phys); 6033 6034 kfree(phba->sli4_hba.bmbx.dmabuf); 6035 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6036} 6037 6038/** 6039 * lpfc_sli4_read_config - Get the config parameters. 6040 * @phba: pointer to lpfc hba data structure. 6041 * 6042 * This routine is invoked to read the configuration parameters from the HBA. 6043 * The configuration parameters are used to set the base and maximum values 6044 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6045 * allocation for the port. 6046 * 6047 * Return codes 6048 * 0 - successful 6049 * -ENOMEM - No available memory 6050 * -EIO - The mailbox failed to complete successfully. 6051 **/ 6052int 6053lpfc_sli4_read_config(struct lpfc_hba *phba) 6054{ 6055 LPFC_MBOXQ_t *pmb; 6056 struct lpfc_mbx_read_config *rd_config; 6057 union lpfc_sli4_cfg_shdr *shdr; 6058 uint32_t shdr_status, shdr_add_status; 6059 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6060 struct lpfc_rsrc_desc_fcfcoe *desc; 6061 uint32_t desc_count; 6062 int length, i, rc = 0; 6063 6064 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6065 if (!pmb) { 6066 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6067 "2011 Unable to allocate memory for issuing " 6068 "SLI_CONFIG_SPECIAL mailbox command\n"); 6069 return -ENOMEM; 6070 } 6071 6072 lpfc_read_config(phba, pmb); 6073 6074 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6075 if (rc != MBX_SUCCESS) { 6076 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6077 "2012 Mailbox failed , mbxCmd x%x " 6078 "READ_CONFIG, mbxStatus x%x\n", 6079 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6080 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6081 rc = -EIO; 6082 } else { 6083 rd_config = &pmb->u.mqe.un.rd_config; 6084 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6085 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6086 phba->sli4_hba.lnk_info.lnk_tp = 6087 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6088 phba->sli4_hba.lnk_info.lnk_no = 6089 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6090 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6091 "3081 lnk_type:%d, lnk_numb:%d\n", 6092 phba->sli4_hba.lnk_info.lnk_tp, 6093 phba->sli4_hba.lnk_info.lnk_no); 6094 } else 6095 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6096 "3082 Mailbox (x%x) returned ldv:x0\n", 6097 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6098 phba->sli4_hba.extents_in_use = 6099 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6100 phba->sli4_hba.max_cfg_param.max_xri = 6101 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6102 phba->sli4_hba.max_cfg_param.xri_base = 6103 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6104 phba->sli4_hba.max_cfg_param.max_vpi = 6105 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6106 phba->sli4_hba.max_cfg_param.vpi_base = 6107 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6108 phba->sli4_hba.max_cfg_param.max_rpi = 6109 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6110 phba->sli4_hba.max_cfg_param.rpi_base = 6111 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6112 phba->sli4_hba.max_cfg_param.max_vfi = 6113 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6114 phba->sli4_hba.max_cfg_param.vfi_base = 6115 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6116 phba->sli4_hba.max_cfg_param.max_fcfi = 6117 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6118 phba->sli4_hba.max_cfg_param.max_eq = 6119 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6120 phba->sli4_hba.max_cfg_param.max_rq = 6121 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6122 phba->sli4_hba.max_cfg_param.max_wq = 6123 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6124 phba->sli4_hba.max_cfg_param.max_cq = 6125 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6126 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6127 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6128 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6129 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6130 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 6131 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6132 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6133 phba->max_vports = phba->max_vpi; 6134 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6135 "2003 cfg params Extents? %d " 6136 "XRI(B:%d M:%d), " 6137 "VPI(B:%d M:%d) " 6138 "VFI(B:%d M:%d) " 6139 "RPI(B:%d M:%d) " 6140 "FCFI(Count:%d)\n", 6141 phba->sli4_hba.extents_in_use, 6142 phba->sli4_hba.max_cfg_param.xri_base, 6143 phba->sli4_hba.max_cfg_param.max_xri, 6144 phba->sli4_hba.max_cfg_param.vpi_base, 6145 phba->sli4_hba.max_cfg_param.max_vpi, 6146 phba->sli4_hba.max_cfg_param.vfi_base, 6147 phba->sli4_hba.max_cfg_param.max_vfi, 6148 phba->sli4_hba.max_cfg_param.rpi_base, 6149 phba->sli4_hba.max_cfg_param.max_rpi, 6150 phba->sli4_hba.max_cfg_param.max_fcfi); 6151 } 6152 6153 if (rc) 6154 goto read_cfg_out; 6155 6156 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6157 if (phba->cfg_hba_queue_depth > 6158 (phba->sli4_hba.max_cfg_param.max_xri - 6159 lpfc_sli4_get_els_iocb_cnt(phba))) 6160 phba->cfg_hba_queue_depth = 6161 phba->sli4_hba.max_cfg_param.max_xri - 6162 lpfc_sli4_get_els_iocb_cnt(phba); 6163 6164 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6165 LPFC_SLI_INTF_IF_TYPE_2) 6166 goto read_cfg_out; 6167 6168 /* get the pf# and vf# for SLI4 if_type 2 port */ 6169 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6170 sizeof(struct lpfc_sli4_cfg_mhdr)); 6171 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6172 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6173 length, LPFC_SLI4_MBX_EMBED); 6174 6175 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6176 shdr = (union lpfc_sli4_cfg_shdr *) 6177 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6178 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6179 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6180 if (rc || shdr_status || shdr_add_status) { 6181 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6182 "3026 Mailbox failed , mbxCmd x%x " 6183 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6184 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6185 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6186 rc = -EIO; 6187 goto read_cfg_out; 6188 } 6189 6190 /* search for fc_fcoe resrouce descriptor */ 6191 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6192 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6193 6194 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6195 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6196 &get_func_cfg->func_cfg.desc[i]; 6197 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6198 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6199 phba->sli4_hba.iov.pf_number = 6200 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6201 phba->sli4_hba.iov.vf_number = 6202 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6203 break; 6204 } 6205 } 6206 6207 if (i < LPFC_RSRC_DESC_MAX_NUM) 6208 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6209 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6210 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6211 phba->sli4_hba.iov.vf_number); 6212 else { 6213 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6214 "3028 GET_FUNCTION_CONFIG: failed to find " 6215 "Resrouce Descriptor:x%x\n", 6216 LPFC_RSRC_DESC_TYPE_FCFCOE); 6217 rc = -EIO; 6218 } 6219 6220read_cfg_out: 6221 mempool_free(pmb, phba->mbox_mem_pool); 6222 return rc; 6223} 6224 6225/** 6226 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6227 * @phba: pointer to lpfc hba data structure. 6228 * 6229 * This routine is invoked to setup the port-side endian order when 6230 * the port if_type is 0. This routine has no function for other 6231 * if_types. 6232 * 6233 * Return codes 6234 * 0 - successful 6235 * -ENOMEM - No available memory 6236 * -EIO - The mailbox failed to complete successfully. 6237 **/ 6238static int 6239lpfc_setup_endian_order(struct lpfc_hba *phba) 6240{ 6241 LPFC_MBOXQ_t *mboxq; 6242 uint32_t if_type, rc = 0; 6243 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6244 HOST_ENDIAN_HIGH_WORD1}; 6245 6246 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6247 switch (if_type) { 6248 case LPFC_SLI_INTF_IF_TYPE_0: 6249 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6250 GFP_KERNEL); 6251 if (!mboxq) { 6252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6253 "0492 Unable to allocate memory for " 6254 "issuing SLI_CONFIG_SPECIAL mailbox " 6255 "command\n"); 6256 return -ENOMEM; 6257 } 6258 6259 /* 6260 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6261 * two words to contain special data values and no other data. 6262 */ 6263 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6264 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6265 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6266 if (rc != MBX_SUCCESS) { 6267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6268 "0493 SLI_CONFIG_SPECIAL mailbox " 6269 "failed with status x%x\n", 6270 rc); 6271 rc = -EIO; 6272 } 6273 mempool_free(mboxq, phba->mbox_mem_pool); 6274 break; 6275 case LPFC_SLI_INTF_IF_TYPE_2: 6276 case LPFC_SLI_INTF_IF_TYPE_1: 6277 default: 6278 break; 6279 } 6280 return rc; 6281} 6282 6283/** 6284 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6285 * @phba: pointer to lpfc hba data structure. 6286 * 6287 * This routine is invoked to check the user settable queue counts for EQs and 6288 * CQs. after this routine is called the counts will be set to valid values that 6289 * adhere to the constraints of the system's interrupt vectors and the port's 6290 * queue resources. 6291 * 6292 * Return codes 6293 * 0 - successful 6294 * -ENOMEM - No available memory 6295 **/ 6296static int 6297lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6298{ 6299 int cfg_fcp_wq_count; 6300 int cfg_fcp_eq_count; 6301 6302 /* 6303 * Sanity check for confiugred queue parameters against the run-time 6304 * device parameters 6305 */ 6306 6307 /* Sanity check on FCP fast-path WQ parameters */ 6308 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6309 if (cfg_fcp_wq_count > 6310 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6311 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6312 LPFC_SP_WQN_DEF; 6313 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6315 "2581 Not enough WQs (%d) from " 6316 "the pci function for supporting " 6317 "FCP WQs (%d)\n", 6318 phba->sli4_hba.max_cfg_param.max_wq, 6319 phba->cfg_fcp_wq_count); 6320 goto out_error; 6321 } 6322 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6323 "2582 Not enough WQs (%d) from the pci " 6324 "function for supporting the requested " 6325 "FCP WQs (%d), the actual FCP WQs can " 6326 "be supported: %d\n", 6327 phba->sli4_hba.max_cfg_param.max_wq, 6328 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6329 } 6330 /* The actual number of FCP work queues adopted */ 6331 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6332 6333 /* Sanity check on FCP fast-path EQ parameters */ 6334 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6335 if (cfg_fcp_eq_count > 6336 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6337 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6338 LPFC_SP_EQN_DEF; 6339 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6341 "2574 Not enough EQs (%d) from the " 6342 "pci function for supporting FCP " 6343 "EQs (%d)\n", 6344 phba->sli4_hba.max_cfg_param.max_eq, 6345 phba->cfg_fcp_eq_count); 6346 goto out_error; 6347 } 6348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6349 "2575 Not enough EQs (%d) from the pci " 6350 "function for supporting the requested " 6351 "FCP EQs (%d), the actual FCP EQs can " 6352 "be supported: %d\n", 6353 phba->sli4_hba.max_cfg_param.max_eq, 6354 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6355 } 6356 /* It does not make sense to have more EQs than WQs */ 6357 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6358 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6359 "2593 The FCP EQ count(%d) cannot be greater " 6360 "than the FCP WQ count(%d), limiting the " 6361 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6362 phba->cfg_fcp_wq_count, 6363 phba->cfg_fcp_wq_count); 6364 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6365 } 6366 /* The actual number of FCP event queues adopted */ 6367 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6368 /* The overall number of event queues used */ 6369 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6370 6371 /* Get EQ depth from module parameter, fake the default for now */ 6372 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6373 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6374 6375 /* Get CQ depth from module parameter, fake the default for now */ 6376 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6377 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6378 6379 return 0; 6380out_error: 6381 return -ENOMEM; 6382} 6383 6384/** 6385 * lpfc_sli4_queue_create - Create all the SLI4 queues 6386 * @phba: pointer to lpfc hba data structure. 6387 * 6388 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6389 * operation. For each SLI4 queue type, the parameters such as queue entry 6390 * count (queue depth) shall be taken from the module parameter. For now, 6391 * we just use some constant number as place holder. 6392 * 6393 * Return codes 6394 * 0 - sucessful 6395 * -ENOMEM - No availble memory 6396 * -EIO - The mailbox failed to complete successfully. 6397 **/ 6398int 6399lpfc_sli4_queue_create(struct lpfc_hba *phba) 6400{ 6401 struct lpfc_queue *qdesc; 6402 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6403 6404 /* 6405 * Create Event Queues (EQs) 6406 */ 6407 6408 /* Create slow path event queue */ 6409 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6410 phba->sli4_hba.eq_ecount); 6411 if (!qdesc) { 6412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6413 "0496 Failed allocate slow-path EQ\n"); 6414 goto out_error; 6415 } 6416 phba->sli4_hba.sp_eq = qdesc; 6417 6418 /* 6419 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be 6420 * zero whenever there is exactly one interrupt vector. This is not 6421 * an error. 6422 */ 6423 if (phba->cfg_fcp_eq_count) { 6424 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6425 phba->cfg_fcp_eq_count), GFP_KERNEL); 6426 if (!phba->sli4_hba.fp_eq) { 6427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6428 "2576 Failed allocate memory for " 6429 "fast-path EQ record array\n"); 6430 goto out_free_sp_eq; 6431 } 6432 } 6433 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6434 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6435 phba->sli4_hba.eq_ecount); 6436 if (!qdesc) { 6437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6438 "0497 Failed allocate fast-path EQ\n"); 6439 goto out_free_fp_eq; 6440 } 6441 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6442 } 6443 6444 /* 6445 * Create Complete Queues (CQs) 6446 */ 6447 6448 /* Create slow-path Mailbox Command Complete Queue */ 6449 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6450 phba->sli4_hba.cq_ecount); 6451 if (!qdesc) { 6452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6453 "0500 Failed allocate slow-path mailbox CQ\n"); 6454 goto out_free_fp_eq; 6455 } 6456 phba->sli4_hba.mbx_cq = qdesc; 6457 6458 /* Create slow-path ELS Complete Queue */ 6459 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6460 phba->sli4_hba.cq_ecount); 6461 if (!qdesc) { 6462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6463 "0501 Failed allocate slow-path ELS CQ\n"); 6464 goto out_free_mbx_cq; 6465 } 6466 phba->sli4_hba.els_cq = qdesc; 6467 6468 6469 /* 6470 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. 6471 * If there are no FCP EQs then create exactly one FCP CQ. 6472 */ 6473 if (phba->cfg_fcp_eq_count) 6474 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6475 phba->cfg_fcp_eq_count), 6476 GFP_KERNEL); 6477 else 6478 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), 6479 GFP_KERNEL); 6480 if (!phba->sli4_hba.fcp_cq) { 6481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6482 "2577 Failed allocate memory for fast-path " 6483 "CQ record array\n"); 6484 goto out_free_els_cq; 6485 } 6486 fcp_cqidx = 0; 6487 do { 6488 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6489 phba->sli4_hba.cq_ecount); 6490 if (!qdesc) { 6491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6492 "0499 Failed allocate fast-path FCP " 6493 "CQ (%d)\n", fcp_cqidx); 6494 goto out_free_fcp_cq; 6495 } 6496 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6497 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6498 6499 /* Create Mailbox Command Queue */ 6500 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6501 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6502 6503 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6504 phba->sli4_hba.mq_ecount); 6505 if (!qdesc) { 6506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6507 "0505 Failed allocate slow-path MQ\n"); 6508 goto out_free_fcp_cq; 6509 } 6510 phba->sli4_hba.mbx_wq = qdesc; 6511 6512 /* 6513 * Create all the Work Queues (WQs) 6514 */ 6515 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6516 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6517 6518 /* Create slow-path ELS Work Queue */ 6519 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6520 phba->sli4_hba.wq_ecount); 6521 if (!qdesc) { 6522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6523 "0504 Failed allocate slow-path ELS WQ\n"); 6524 goto out_free_mbx_wq; 6525 } 6526 phba->sli4_hba.els_wq = qdesc; 6527 6528 /* Create fast-path FCP Work Queue(s) */ 6529 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6530 phba->cfg_fcp_wq_count), GFP_KERNEL); 6531 if (!phba->sli4_hba.fcp_wq) { 6532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6533 "2578 Failed allocate memory for fast-path " 6534 "WQ record array\n"); 6535 goto out_free_els_wq; 6536 } 6537 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6538 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6539 phba->sli4_hba.wq_ecount); 6540 if (!qdesc) { 6541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6542 "0503 Failed allocate fast-path FCP " 6543 "WQ (%d)\n", fcp_wqidx); 6544 goto out_free_fcp_wq; 6545 } 6546 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6547 } 6548 6549 /* 6550 * Create Receive Queue (RQ) 6551 */ 6552 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6553 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6554 6555 /* Create Receive Queue for header */ 6556 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6557 phba->sli4_hba.rq_ecount); 6558 if (!qdesc) { 6559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6560 "0506 Failed allocate receive HRQ\n"); 6561 goto out_free_fcp_wq; 6562 } 6563 phba->sli4_hba.hdr_rq = qdesc; 6564 6565 /* Create Receive Queue for data */ 6566 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6567 phba->sli4_hba.rq_ecount); 6568 if (!qdesc) { 6569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6570 "0507 Failed allocate receive DRQ\n"); 6571 goto out_free_hdr_rq; 6572 } 6573 phba->sli4_hba.dat_rq = qdesc; 6574 6575 return 0; 6576 6577out_free_hdr_rq: 6578 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6579 phba->sli4_hba.hdr_rq = NULL; 6580out_free_fcp_wq: 6581 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6582 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6583 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6584 } 6585 kfree(phba->sli4_hba.fcp_wq); 6586 phba->sli4_hba.fcp_wq = NULL; 6587out_free_els_wq: 6588 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6589 phba->sli4_hba.els_wq = NULL; 6590out_free_mbx_wq: 6591 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6592 phba->sli4_hba.mbx_wq = NULL; 6593out_free_fcp_cq: 6594 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6595 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6596 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6597 } 6598 kfree(phba->sli4_hba.fcp_cq); 6599 phba->sli4_hba.fcp_cq = NULL; 6600out_free_els_cq: 6601 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6602 phba->sli4_hba.els_cq = NULL; 6603out_free_mbx_cq: 6604 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6605 phba->sli4_hba.mbx_cq = NULL; 6606out_free_fp_eq: 6607 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6608 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6609 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6610 } 6611 kfree(phba->sli4_hba.fp_eq); 6612 phba->sli4_hba.fp_eq = NULL; 6613out_free_sp_eq: 6614 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6615 phba->sli4_hba.sp_eq = NULL; 6616out_error: 6617 return -ENOMEM; 6618} 6619 6620/** 6621 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6622 * @phba: pointer to lpfc hba data structure. 6623 * 6624 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6625 * operation. 6626 * 6627 * Return codes 6628 * 0 - successful 6629 * -ENOMEM - No available memory 6630 * -EIO - The mailbox failed to complete successfully. 6631 **/ 6632void 6633lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6634{ 6635 int fcp_qidx; 6636 6637 /* Release mailbox command work queue */ 6638 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6639 phba->sli4_hba.mbx_wq = NULL; 6640 6641 /* Release ELS work queue */ 6642 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6643 phba->sli4_hba.els_wq = NULL; 6644 6645 /* Release FCP work queue */ 6646 if (phba->sli4_hba.fcp_wq != NULL) 6647 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; 6648 fcp_qidx++) 6649 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6650 kfree(phba->sli4_hba.fcp_wq); 6651 phba->sli4_hba.fcp_wq = NULL; 6652 6653 /* Release unsolicited receive queue */ 6654 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6655 phba->sli4_hba.hdr_rq = NULL; 6656 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6657 phba->sli4_hba.dat_rq = NULL; 6658 6659 /* Release ELS complete queue */ 6660 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6661 phba->sli4_hba.els_cq = NULL; 6662 6663 /* Release mailbox command complete queue */ 6664 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6665 phba->sli4_hba.mbx_cq = NULL; 6666 6667 /* Release FCP response complete queue */ 6668 fcp_qidx = 0; 6669 if (phba->sli4_hba.fcp_cq != NULL) 6670 do 6671 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6672 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6673 kfree(phba->sli4_hba.fcp_cq); 6674 phba->sli4_hba.fcp_cq = NULL; 6675 6676 /* Release fast-path event queue */ 6677 if (phba->sli4_hba.fp_eq != NULL) 6678 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 6679 fcp_qidx++) 6680 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6681 kfree(phba->sli4_hba.fp_eq); 6682 phba->sli4_hba.fp_eq = NULL; 6683 6684 /* Release slow-path event queue */ 6685 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6686 phba->sli4_hba.sp_eq = NULL; 6687 6688 return; 6689} 6690 6691/** 6692 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6693 * @phba: pointer to lpfc hba data structure. 6694 * 6695 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6696 * operation. 6697 * 6698 * Return codes 6699 * 0 - successful 6700 * -ENOMEM - No available memory 6701 * -EIO - The mailbox failed to complete successfully. 6702 **/ 6703int 6704lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6705{ 6706 int rc = -ENOMEM; 6707 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6708 int fcp_cq_index = 0; 6709 6710 /* 6711 * Set up Event Queues (EQs) 6712 */ 6713 6714 /* Set up slow-path event queue */ 6715 if (!phba->sli4_hba.sp_eq) { 6716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6717 "0520 Slow-path EQ not allocated\n"); 6718 goto out_error; 6719 } 6720 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6721 LPFC_SP_DEF_IMAX); 6722 if (rc) { 6723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6724 "0521 Failed setup of slow-path EQ: " 6725 "rc = 0x%x\n", rc); 6726 goto out_error; 6727 } 6728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6729 "2583 Slow-path EQ setup: queue-id=%d\n", 6730 phba->sli4_hba.sp_eq->queue_id); 6731 6732 /* Set up fast-path event queue */ 6733 if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) { 6734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6735 "3147 Fast-path EQs not allocated\n"); 6736 rc = -ENOMEM; 6737 goto out_destroy_sp_eq; 6738 } 6739 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6740 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6742 "0522 Fast-path EQ (%d) not " 6743 "allocated\n", fcp_eqidx); 6744 rc = -ENOMEM; 6745 goto out_destroy_fp_eq; 6746 } 6747 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6748 phba->cfg_fcp_imax); 6749 if (rc) { 6750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6751 "0523 Failed setup of fast-path EQ " 6752 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6753 goto out_destroy_fp_eq; 6754 } 6755 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6756 "2584 Fast-path EQ setup: " 6757 "queue[%d]-id=%d\n", fcp_eqidx, 6758 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6759 } 6760 6761 /* 6762 * Set up Complete Queues (CQs) 6763 */ 6764 6765 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6766 if (!phba->sli4_hba.mbx_cq) { 6767 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6768 "0528 Mailbox CQ not allocated\n"); 6769 rc = -ENOMEM; 6770 goto out_destroy_fp_eq; 6771 } 6772 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6773 LPFC_MCQ, LPFC_MBOX); 6774 if (rc) { 6775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6776 "0529 Failed setup of slow-path mailbox CQ: " 6777 "rc = 0x%x\n", rc); 6778 goto out_destroy_fp_eq; 6779 } 6780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6781 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6782 phba->sli4_hba.mbx_cq->queue_id, 6783 phba->sli4_hba.sp_eq->queue_id); 6784 6785 /* Set up slow-path ELS Complete Queue */ 6786 if (!phba->sli4_hba.els_cq) { 6787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6788 "0530 ELS CQ not allocated\n"); 6789 rc = -ENOMEM; 6790 goto out_destroy_mbx_cq; 6791 } 6792 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6793 LPFC_WCQ, LPFC_ELS); 6794 if (rc) { 6795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6796 "0531 Failed setup of slow-path ELS CQ: " 6797 "rc = 0x%x\n", rc); 6798 goto out_destroy_mbx_cq; 6799 } 6800 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6801 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6802 phba->sli4_hba.els_cq->queue_id, 6803 phba->sli4_hba.sp_eq->queue_id); 6804 6805 /* Set up fast-path FCP Response Complete Queue */ 6806 if (!phba->sli4_hba.fcp_cq) { 6807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6808 "3148 Fast-path FCP CQ array not " 6809 "allocated\n"); 6810 rc = -ENOMEM; 6811 goto out_destroy_els_cq; 6812 } 6813 fcp_cqidx = 0; 6814 do { 6815 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6817 "0526 Fast-path FCP CQ (%d) not " 6818 "allocated\n", fcp_cqidx); 6819 rc = -ENOMEM; 6820 goto out_destroy_fcp_cq; 6821 } 6822 if (phba->cfg_fcp_eq_count) 6823 rc = lpfc_cq_create(phba, 6824 phba->sli4_hba.fcp_cq[fcp_cqidx], 6825 phba->sli4_hba.fp_eq[fcp_cqidx], 6826 LPFC_WCQ, LPFC_FCP); 6827 else 6828 rc = lpfc_cq_create(phba, 6829 phba->sli4_hba.fcp_cq[fcp_cqidx], 6830 phba->sli4_hba.sp_eq, 6831 LPFC_WCQ, LPFC_FCP); 6832 if (rc) { 6833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6834 "0527 Failed setup of fast-path FCP " 6835 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6836 goto out_destroy_fcp_cq; 6837 } 6838 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6839 "2588 FCP CQ setup: cq[%d]-id=%d, " 6840 "parent %seq[%d]-id=%d\n", 6841 fcp_cqidx, 6842 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6843 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6844 fcp_cqidx, 6845 (phba->cfg_fcp_eq_count) ? 6846 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6847 phba->sli4_hba.sp_eq->queue_id); 6848 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6849 6850 /* 6851 * Set up all the Work Queues (WQs) 6852 */ 6853 6854 /* Set up Mailbox Command Queue */ 6855 if (!phba->sli4_hba.mbx_wq) { 6856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6857 "0538 Slow-path MQ not allocated\n"); 6858 rc = -ENOMEM; 6859 goto out_destroy_fcp_cq; 6860 } 6861 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6862 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6863 if (rc) { 6864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6865 "0539 Failed setup of slow-path MQ: " 6866 "rc = 0x%x\n", rc); 6867 goto out_destroy_fcp_cq; 6868 } 6869 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6870 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6871 phba->sli4_hba.mbx_wq->queue_id, 6872 phba->sli4_hba.mbx_cq->queue_id); 6873 6874 /* Set up slow-path ELS Work Queue */ 6875 if (!phba->sli4_hba.els_wq) { 6876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6877 "0536 Slow-path ELS WQ not allocated\n"); 6878 rc = -ENOMEM; 6879 goto out_destroy_mbx_wq; 6880 } 6881 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6882 phba->sli4_hba.els_cq, LPFC_ELS); 6883 if (rc) { 6884 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6885 "0537 Failed setup of slow-path ELS WQ: " 6886 "rc = 0x%x\n", rc); 6887 goto out_destroy_mbx_wq; 6888 } 6889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6890 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6891 phba->sli4_hba.els_wq->queue_id, 6892 phba->sli4_hba.els_cq->queue_id); 6893 6894 /* Set up fast-path FCP Work Queue */ 6895 if (!phba->sli4_hba.fcp_wq) { 6896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6897 "3149 Fast-path FCP WQ array not " 6898 "allocated\n"); 6899 rc = -ENOMEM; 6900 goto out_destroy_els_wq; 6901 } 6902 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6903 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6905 "0534 Fast-path FCP WQ (%d) not " 6906 "allocated\n", fcp_wqidx); 6907 rc = -ENOMEM; 6908 goto out_destroy_fcp_wq; 6909 } 6910 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6911 phba->sli4_hba.fcp_cq[fcp_cq_index], 6912 LPFC_FCP); 6913 if (rc) { 6914 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6915 "0535 Failed setup of fast-path FCP " 6916 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6917 goto out_destroy_fcp_wq; 6918 } 6919 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6920 "2591 FCP WQ setup: wq[%d]-id=%d, " 6921 "parent cq[%d]-id=%d\n", 6922 fcp_wqidx, 6923 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6924 fcp_cq_index, 6925 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6926 /* Round robin FCP Work Queue's Completion Queue assignment */ 6927 if (phba->cfg_fcp_eq_count) 6928 fcp_cq_index = ((fcp_cq_index + 1) % 6929 phba->cfg_fcp_eq_count); 6930 } 6931 6932 /* 6933 * Create Receive Queue (RQ) 6934 */ 6935 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6937 "0540 Receive Queue not allocated\n"); 6938 rc = -ENOMEM; 6939 goto out_destroy_fcp_wq; 6940 } 6941 6942 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 6943 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 6944 6945 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6946 phba->sli4_hba.els_cq, LPFC_USOL); 6947 if (rc) { 6948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6949 "0541 Failed setup of Receive Queue: " 6950 "rc = 0x%x\n", rc); 6951 goto out_destroy_fcp_wq; 6952 } 6953 6954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6955 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6956 "parent cq-id=%d\n", 6957 phba->sli4_hba.hdr_rq->queue_id, 6958 phba->sli4_hba.dat_rq->queue_id, 6959 phba->sli4_hba.els_cq->queue_id); 6960 return 0; 6961 6962out_destroy_fcp_wq: 6963 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6964 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6965out_destroy_els_wq: 6966 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6967out_destroy_mbx_wq: 6968 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6969out_destroy_fcp_cq: 6970 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6971 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6972out_destroy_els_cq: 6973 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6974out_destroy_mbx_cq: 6975 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6976out_destroy_fp_eq: 6977 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6978 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6979out_destroy_sp_eq: 6980 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6981out_error: 6982 return rc; 6983} 6984 6985/** 6986 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6987 * @phba: pointer to lpfc hba data structure. 6988 * 6989 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6990 * operation. 6991 * 6992 * Return codes 6993 * 0 - successful 6994 * -ENOMEM - No available memory 6995 * -EIO - The mailbox failed to complete successfully. 6996 **/ 6997void 6998lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6999{ 7000 int fcp_qidx; 7001 7002 /* Unset mailbox command work queue */ 7003 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7004 /* Unset ELS work queue */ 7005 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7006 /* Unset unsolicited receive queue */ 7007 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7008 /* Unset FCP work queue */ 7009 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 7010 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7011 /* Unset mailbox command complete queue */ 7012 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7013 /* Unset ELS complete queue */ 7014 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7015 /* Unset FCP response complete queue */ 7016 if (phba->sli4_hba.fcp_cq) { 7017 fcp_qidx = 0; 7018 do { 7019 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7020 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 7021 } 7022 /* Unset fast-path event queue */ 7023 if (phba->sli4_hba.fp_eq) { 7024 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 7025 fcp_qidx++) 7026 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 7027 } 7028 /* Unset slow-path event queue */ 7029 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7030} 7031 7032/** 7033 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7034 * @phba: pointer to lpfc hba data structure. 7035 * 7036 * This routine is invoked to allocate and set up a pool of completion queue 7037 * events. The body of the completion queue event is a completion queue entry 7038 * CQE. For now, this pool is used for the interrupt service routine to queue 7039 * the following HBA completion queue events for the worker thread to process: 7040 * - Mailbox asynchronous events 7041 * - Receive queue completion unsolicited events 7042 * Later, this can be used for all the slow-path events. 7043 * 7044 * Return codes 7045 * 0 - successful 7046 * -ENOMEM - No available memory 7047 **/ 7048static int 7049lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7050{ 7051 struct lpfc_cq_event *cq_event; 7052 int i; 7053 7054 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7055 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7056 if (!cq_event) 7057 goto out_pool_create_fail; 7058 list_add_tail(&cq_event->list, 7059 &phba->sli4_hba.sp_cqe_event_pool); 7060 } 7061 return 0; 7062 7063out_pool_create_fail: 7064 lpfc_sli4_cq_event_pool_destroy(phba); 7065 return -ENOMEM; 7066} 7067 7068/** 7069 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7070 * @phba: pointer to lpfc hba data structure. 7071 * 7072 * This routine is invoked to free the pool of completion queue events at 7073 * driver unload time. Note that, it is the responsibility of the driver 7074 * cleanup routine to free all the outstanding completion-queue events 7075 * allocated from this pool back into the pool before invoking this routine 7076 * to destroy the pool. 7077 **/ 7078static void 7079lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7080{ 7081 struct lpfc_cq_event *cq_event, *next_cq_event; 7082 7083 list_for_each_entry_safe(cq_event, next_cq_event, 7084 &phba->sli4_hba.sp_cqe_event_pool, list) { 7085 list_del(&cq_event->list); 7086 kfree(cq_event); 7087 } 7088} 7089 7090/** 7091 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7092 * @phba: pointer to lpfc hba data structure. 7093 * 7094 * This routine is the lock free version of the API invoked to allocate a 7095 * completion-queue event from the free pool. 7096 * 7097 * Return: Pointer to the newly allocated completion-queue event if successful 7098 * NULL otherwise. 7099 **/ 7100struct lpfc_cq_event * 7101__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7102{ 7103 struct lpfc_cq_event *cq_event = NULL; 7104 7105 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7106 struct lpfc_cq_event, list); 7107 return cq_event; 7108} 7109 7110/** 7111 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7112 * @phba: pointer to lpfc hba data structure. 7113 * 7114 * This routine is the lock version of the API invoked to allocate a 7115 * completion-queue event from the free pool. 7116 * 7117 * Return: Pointer to the newly allocated completion-queue event if successful 7118 * NULL otherwise. 7119 **/ 7120struct lpfc_cq_event * 7121lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7122{ 7123 struct lpfc_cq_event *cq_event; 7124 unsigned long iflags; 7125 7126 spin_lock_irqsave(&phba->hbalock, iflags); 7127 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7128 spin_unlock_irqrestore(&phba->hbalock, iflags); 7129 return cq_event; 7130} 7131 7132/** 7133 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7134 * @phba: pointer to lpfc hba data structure. 7135 * @cq_event: pointer to the completion queue event to be freed. 7136 * 7137 * This routine is the lock free version of the API invoked to release a 7138 * completion-queue event back into the free pool. 7139 **/ 7140void 7141__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7142 struct lpfc_cq_event *cq_event) 7143{ 7144 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7145} 7146 7147/** 7148 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7149 * @phba: pointer to lpfc hba data structure. 7150 * @cq_event: pointer to the completion queue event to be freed. 7151 * 7152 * This routine is the lock version of the API invoked to release a 7153 * completion-queue event back into the free pool. 7154 **/ 7155void 7156lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7157 struct lpfc_cq_event *cq_event) 7158{ 7159 unsigned long iflags; 7160 spin_lock_irqsave(&phba->hbalock, iflags); 7161 __lpfc_sli4_cq_event_release(phba, cq_event); 7162 spin_unlock_irqrestore(&phba->hbalock, iflags); 7163} 7164 7165/** 7166 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7167 * @phba: pointer to lpfc hba data structure. 7168 * 7169 * This routine is to free all the pending completion-queue events to the 7170 * back into the free pool for device reset. 7171 **/ 7172static void 7173lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7174{ 7175 LIST_HEAD(cqelist); 7176 struct lpfc_cq_event *cqe; 7177 unsigned long iflags; 7178 7179 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7180 spin_lock_irqsave(&phba->hbalock, iflags); 7181 /* Pending FCP XRI abort events */ 7182 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7183 &cqelist); 7184 /* Pending ELS XRI abort events */ 7185 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7186 &cqelist); 7187 /* Pending asynnc events */ 7188 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7189 &cqelist); 7190 spin_unlock_irqrestore(&phba->hbalock, iflags); 7191 7192 while (!list_empty(&cqelist)) { 7193 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7194 lpfc_sli4_cq_event_release(phba, cqe); 7195 } 7196} 7197 7198/** 7199 * lpfc_pci_function_reset - Reset pci function. 7200 * @phba: pointer to lpfc hba data structure. 7201 * 7202 * This routine is invoked to request a PCI function reset. It will destroys 7203 * all resources assigned to the PCI function which originates this request. 7204 * 7205 * Return codes 7206 * 0 - successful 7207 * -ENOMEM - No available memory 7208 * -EIO - The mailbox failed to complete successfully. 7209 **/ 7210int 7211lpfc_pci_function_reset(struct lpfc_hba *phba) 7212{ 7213 LPFC_MBOXQ_t *mboxq; 7214 uint32_t rc = 0, if_type; 7215 uint32_t shdr_status, shdr_add_status; 7216 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7217 union lpfc_sli4_cfg_shdr *shdr; 7218 struct lpfc_register reg_data; 7219 7220 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7221 switch (if_type) { 7222 case LPFC_SLI_INTF_IF_TYPE_0: 7223 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7224 GFP_KERNEL); 7225 if (!mboxq) { 7226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7227 "0494 Unable to allocate memory for " 7228 "issuing SLI_FUNCTION_RESET mailbox " 7229 "command\n"); 7230 return -ENOMEM; 7231 } 7232 7233 /* Setup PCI function reset mailbox-ioctl command */ 7234 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7235 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7236 LPFC_SLI4_MBX_EMBED); 7237 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7238 shdr = (union lpfc_sli4_cfg_shdr *) 7239 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7240 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7241 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7242 &shdr->response); 7243 if (rc != MBX_TIMEOUT) 7244 mempool_free(mboxq, phba->mbox_mem_pool); 7245 if (shdr_status || shdr_add_status || rc) { 7246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7247 "0495 SLI_FUNCTION_RESET mailbox " 7248 "failed with status x%x add_status x%x," 7249 " mbx status x%x\n", 7250 shdr_status, shdr_add_status, rc); 7251 rc = -ENXIO; 7252 } 7253 break; 7254 case LPFC_SLI_INTF_IF_TYPE_2: 7255 for (num_resets = 0; 7256 num_resets < MAX_IF_TYPE_2_RESETS; 7257 num_resets++) { 7258 reg_data.word0 = 0; 7259 bf_set(lpfc_sliport_ctrl_end, ®_data, 7260 LPFC_SLIPORT_LITTLE_ENDIAN); 7261 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7262 LPFC_SLIPORT_INIT_PORT); 7263 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7264 CTRLregaddr); 7265 7266 /* 7267 * Poll the Port Status Register and wait for RDY for 7268 * up to 10 seconds. If the port doesn't respond, treat 7269 * it as an error. If the port responds with RN, start 7270 * the loop again. 7271 */ 7272 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7273 msleep(10); 7274 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7275 STATUSregaddr, ®_data.word0)) { 7276 rc = -ENODEV; 7277 goto out; 7278 } 7279 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7280 reset_again++; 7281 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7282 break; 7283 } 7284 7285 /* 7286 * If the port responds to the init request with 7287 * reset needed, delay for a bit and restart the loop. 7288 */ 7289 if (reset_again && (rdy_chk < 1000)) { 7290 msleep(10); 7291 reset_again = 0; 7292 continue; 7293 } 7294 7295 /* Detect any port errors. */ 7296 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7297 (rdy_chk >= 1000)) { 7298 phba->work_status[0] = readl( 7299 phba->sli4_hba.u.if_type2.ERR1regaddr); 7300 phba->work_status[1] = readl( 7301 phba->sli4_hba.u.if_type2.ERR2regaddr); 7302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7303 "2890 Port Error Detected " 7304 "during Port Reset: " 7305 "port status reg 0x%x, " 7306 "error 1=0x%x, error 2=0x%x\n", 7307 reg_data.word0, 7308 phba->work_status[0], 7309 phba->work_status[1]); 7310 rc = -ENODEV; 7311 } 7312 7313 /* 7314 * Terminate the outer loop provided the Port indicated 7315 * ready within 10 seconds. 7316 */ 7317 if (rdy_chk < 1000) 7318 break; 7319 } 7320 /* delay driver action following IF_TYPE_2 function reset */ 7321 msleep(100); 7322 break; 7323 case LPFC_SLI_INTF_IF_TYPE_1: 7324 default: 7325 break; 7326 } 7327 7328out: 7329 /* Catch the not-ready port failure after a port reset. */ 7330 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7331 rc = -ENODEV; 7332 7333 return rc; 7334} 7335 7336/** 7337 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7338 * @phba: pointer to lpfc hba data structure. 7339 * @cnt: number of nop mailbox commands to send. 7340 * 7341 * This routine is invoked to send a number @cnt of NOP mailbox command and 7342 * wait for each command to complete. 7343 * 7344 * Return: the number of NOP mailbox command completed. 7345 **/ 7346static int 7347lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7348{ 7349 LPFC_MBOXQ_t *mboxq; 7350 int length, cmdsent; 7351 uint32_t mbox_tmo; 7352 uint32_t rc = 0; 7353 uint32_t shdr_status, shdr_add_status; 7354 union lpfc_sli4_cfg_shdr *shdr; 7355 7356 if (cnt == 0) { 7357 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7358 "2518 Requested to send 0 NOP mailbox cmd\n"); 7359 return cnt; 7360 } 7361 7362 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7363 if (!mboxq) { 7364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7365 "2519 Unable to allocate memory for issuing " 7366 "NOP mailbox command\n"); 7367 return 0; 7368 } 7369 7370 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7371 length = (sizeof(struct lpfc_mbx_nop) - 7372 sizeof(struct lpfc_sli4_cfg_mhdr)); 7373 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7374 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7375 7376 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7377 if (!phba->sli4_hba.intr_enable) 7378 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7379 else { 7380 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7381 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7382 } 7383 if (rc == MBX_TIMEOUT) 7384 break; 7385 /* Check return status */ 7386 shdr = (union lpfc_sli4_cfg_shdr *) 7387 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7388 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7389 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7390 &shdr->response); 7391 if (shdr_status || shdr_add_status || rc) { 7392 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7393 "2520 NOP mailbox command failed " 7394 "status x%x add_status x%x mbx " 7395 "status x%x\n", shdr_status, 7396 shdr_add_status, rc); 7397 break; 7398 } 7399 } 7400 7401 if (rc != MBX_TIMEOUT) 7402 mempool_free(mboxq, phba->mbox_mem_pool); 7403 7404 return cmdsent; 7405} 7406 7407/** 7408 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7409 * @phba: pointer to lpfc hba data structure. 7410 * 7411 * This routine is invoked to set up the PCI device memory space for device 7412 * with SLI-4 interface spec. 7413 * 7414 * Return codes 7415 * 0 - successful 7416 * other values - error 7417 **/ 7418static int 7419lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7420{ 7421 struct pci_dev *pdev; 7422 unsigned long bar0map_len, bar1map_len, bar2map_len; 7423 int error = -ENODEV; 7424 uint32_t if_type; 7425 7426 /* Obtain PCI device reference */ 7427 if (!phba->pcidev) 7428 return error; 7429 else 7430 pdev = phba->pcidev; 7431 7432 /* Set the device DMA mask size */ 7433 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7434 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7435 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7436 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7437 return error; 7438 } 7439 } 7440 7441 /* 7442 * The BARs and register set definitions and offset locations are 7443 * dependent on the if_type. 7444 */ 7445 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7446 &phba->sli4_hba.sli_intf.word0)) { 7447 return error; 7448 } 7449 7450 /* There is no SLI3 failback for SLI4 devices. */ 7451 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7452 LPFC_SLI_INTF_VALID) { 7453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7454 "2894 SLI_INTF reg contents invalid " 7455 "sli_intf reg 0x%x\n", 7456 phba->sli4_hba.sli_intf.word0); 7457 return error; 7458 } 7459 7460 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7461 /* 7462 * Get the bus address of SLI4 device Bar regions and the 7463 * number of bytes required by each mapping. The mapping of the 7464 * particular PCI BARs regions is dependent on the type of 7465 * SLI4 device. 7466 */ 7467 if (pci_resource_start(pdev, 0)) { 7468 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7469 bar0map_len = pci_resource_len(pdev, 0); 7470 7471 /* 7472 * Map SLI4 PCI Config Space Register base to a kernel virtual 7473 * addr 7474 */ 7475 phba->sli4_hba.conf_regs_memmap_p = 7476 ioremap(phba->pci_bar0_map, bar0map_len); 7477 if (!phba->sli4_hba.conf_regs_memmap_p) { 7478 dev_printk(KERN_ERR, &pdev->dev, 7479 "ioremap failed for SLI4 PCI config " 7480 "registers.\n"); 7481 goto out; 7482 } 7483 /* Set up BAR0 PCI config space register memory map */ 7484 lpfc_sli4_bar0_register_memmap(phba, if_type); 7485 } else { 7486 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7487 bar0map_len = pci_resource_len(pdev, 1); 7488 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7489 dev_printk(KERN_ERR, &pdev->dev, 7490 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7491 goto out; 7492 } 7493 phba->sli4_hba.conf_regs_memmap_p = 7494 ioremap(phba->pci_bar0_map, bar0map_len); 7495 if (!phba->sli4_hba.conf_regs_memmap_p) { 7496 dev_printk(KERN_ERR, &pdev->dev, 7497 "ioremap failed for SLI4 PCI config " 7498 "registers.\n"); 7499 goto out; 7500 } 7501 lpfc_sli4_bar0_register_memmap(phba, if_type); 7502 } 7503 7504 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7505 (pci_resource_start(pdev, 2))) { 7506 /* 7507 * Map SLI4 if type 0 HBA Control Register base to a kernel 7508 * virtual address and setup the registers. 7509 */ 7510 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7511 bar1map_len = pci_resource_len(pdev, 2); 7512 phba->sli4_hba.ctrl_regs_memmap_p = 7513 ioremap(phba->pci_bar1_map, bar1map_len); 7514 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7515 dev_printk(KERN_ERR, &pdev->dev, 7516 "ioremap failed for SLI4 HBA control registers.\n"); 7517 goto out_iounmap_conf; 7518 } 7519 lpfc_sli4_bar1_register_memmap(phba); 7520 } 7521 7522 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7523 (pci_resource_start(pdev, 4))) { 7524 /* 7525 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7526 * virtual address and setup the registers. 7527 */ 7528 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7529 bar2map_len = pci_resource_len(pdev, 4); 7530 phba->sli4_hba.drbl_regs_memmap_p = 7531 ioremap(phba->pci_bar2_map, bar2map_len); 7532 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7533 dev_printk(KERN_ERR, &pdev->dev, 7534 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7535 goto out_iounmap_ctrl; 7536 } 7537 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7538 if (error) 7539 goto out_iounmap_all; 7540 } 7541 7542 return 0; 7543 7544out_iounmap_all: 7545 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7546out_iounmap_ctrl: 7547 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7548out_iounmap_conf: 7549 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7550out: 7551 return error; 7552} 7553 7554/** 7555 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7556 * @phba: pointer to lpfc hba data structure. 7557 * 7558 * This routine is invoked to unset the PCI device memory space for device 7559 * with SLI-4 interface spec. 7560 **/ 7561static void 7562lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7563{ 7564 uint32_t if_type; 7565 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7566 7567 switch (if_type) { 7568 case LPFC_SLI_INTF_IF_TYPE_0: 7569 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7570 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7571 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7572 break; 7573 case LPFC_SLI_INTF_IF_TYPE_2: 7574 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7575 break; 7576 case LPFC_SLI_INTF_IF_TYPE_1: 7577 default: 7578 dev_printk(KERN_ERR, &phba->pcidev->dev, 7579 "FATAL - unsupported SLI4 interface type - %d\n", 7580 if_type); 7581 break; 7582 } 7583} 7584 7585/** 7586 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7587 * @phba: pointer to lpfc hba data structure. 7588 * 7589 * This routine is invoked to enable the MSI-X interrupt vectors to device 7590 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7591 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7592 * invoked, enables either all or nothing, depending on the current 7593 * availability of PCI vector resources. The device driver is responsible 7594 * for calling the individual request_irq() to register each MSI-X vector 7595 * with a interrupt handler, which is done in this function. Note that 7596 * later when device is unloading, the driver should always call free_irq() 7597 * on all MSI-X vectors it has done request_irq() on before calling 7598 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7599 * will be left with MSI-X enabled and leaks its vectors. 7600 * 7601 * Return codes 7602 * 0 - successful 7603 * other values - error 7604 **/ 7605static int 7606lpfc_sli_enable_msix(struct lpfc_hba *phba) 7607{ 7608 int rc, i; 7609 LPFC_MBOXQ_t *pmb; 7610 7611 /* Set up MSI-X multi-message vectors */ 7612 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7613 phba->msix_entries[i].entry = i; 7614 7615 /* Configure MSI-X capability structure */ 7616 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7617 ARRAY_SIZE(phba->msix_entries)); 7618 if (rc) { 7619 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7620 "0420 PCI enable MSI-X failed (%d)\n", rc); 7621 goto msi_fail_out; 7622 } 7623 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7624 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7625 "0477 MSI-X entry[%d]: vector=x%x " 7626 "message=%d\n", i, 7627 phba->msix_entries[i].vector, 7628 phba->msix_entries[i].entry); 7629 /* 7630 * Assign MSI-X vectors to interrupt handlers 7631 */ 7632 7633 /* vector-0 is associated to slow-path handler */ 7634 rc = request_irq(phba->msix_entries[0].vector, 7635 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7636 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7637 if (rc) { 7638 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7639 "0421 MSI-X slow-path request_irq failed " 7640 "(%d)\n", rc); 7641 goto msi_fail_out; 7642 } 7643 7644 /* vector-1 is associated to fast-path handler */ 7645 rc = request_irq(phba->msix_entries[1].vector, 7646 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7647 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7648 7649 if (rc) { 7650 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7651 "0429 MSI-X fast-path request_irq failed " 7652 "(%d)\n", rc); 7653 goto irq_fail_out; 7654 } 7655 7656 /* 7657 * Configure HBA MSI-X attention conditions to messages 7658 */ 7659 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7660 7661 if (!pmb) { 7662 rc = -ENOMEM; 7663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7664 "0474 Unable to allocate memory for issuing " 7665 "MBOX_CONFIG_MSI command\n"); 7666 goto mem_fail_out; 7667 } 7668 rc = lpfc_config_msi(phba, pmb); 7669 if (rc) 7670 goto mbx_fail_out; 7671 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7672 if (rc != MBX_SUCCESS) { 7673 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7674 "0351 Config MSI mailbox command failed, " 7675 "mbxCmd x%x, mbxStatus x%x\n", 7676 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7677 goto mbx_fail_out; 7678 } 7679 7680 /* Free memory allocated for mailbox command */ 7681 mempool_free(pmb, phba->mbox_mem_pool); 7682 return rc; 7683 7684mbx_fail_out: 7685 /* Free memory allocated for mailbox command */ 7686 mempool_free(pmb, phba->mbox_mem_pool); 7687 7688mem_fail_out: 7689 /* free the irq already requested */ 7690 free_irq(phba->msix_entries[1].vector, phba); 7691 7692irq_fail_out: 7693 /* free the irq already requested */ 7694 free_irq(phba->msix_entries[0].vector, phba); 7695 7696msi_fail_out: 7697 /* Unconfigure MSI-X capability structure */ 7698 pci_disable_msix(phba->pcidev); 7699 return rc; 7700} 7701 7702/** 7703 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7704 * @phba: pointer to lpfc hba data structure. 7705 * 7706 * This routine is invoked to release the MSI-X vectors and then disable the 7707 * MSI-X interrupt mode to device with SLI-3 interface spec. 7708 **/ 7709static void 7710lpfc_sli_disable_msix(struct lpfc_hba *phba) 7711{ 7712 int i; 7713 7714 /* Free up MSI-X multi-message vectors */ 7715 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7716 free_irq(phba->msix_entries[i].vector, phba); 7717 /* Disable MSI-X */ 7718 pci_disable_msix(phba->pcidev); 7719 7720 return; 7721} 7722 7723/** 7724 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7725 * @phba: pointer to lpfc hba data structure. 7726 * 7727 * This routine is invoked to enable the MSI interrupt mode to device with 7728 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7729 * enable the MSI vector. The device driver is responsible for calling the 7730 * request_irq() to register MSI vector with a interrupt the handler, which 7731 * is done in this function. 7732 * 7733 * Return codes 7734 * 0 - successful 7735 * other values - error 7736 */ 7737static int 7738lpfc_sli_enable_msi(struct lpfc_hba *phba) 7739{ 7740 int rc; 7741 7742 rc = pci_enable_msi(phba->pcidev); 7743 if (!rc) 7744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7745 "0462 PCI enable MSI mode success.\n"); 7746 else { 7747 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7748 "0471 PCI enable MSI mode failed (%d)\n", rc); 7749 return rc; 7750 } 7751 7752 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7753 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7754 if (rc) { 7755 pci_disable_msi(phba->pcidev); 7756 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7757 "0478 MSI request_irq failed (%d)\n", rc); 7758 } 7759 return rc; 7760} 7761 7762/** 7763 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7764 * @phba: pointer to lpfc hba data structure. 7765 * 7766 * This routine is invoked to disable the MSI interrupt mode to device with 7767 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7768 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7769 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7770 * its vector. 7771 */ 7772static void 7773lpfc_sli_disable_msi(struct lpfc_hba *phba) 7774{ 7775 free_irq(phba->pcidev->irq, phba); 7776 pci_disable_msi(phba->pcidev); 7777 return; 7778} 7779 7780/** 7781 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7782 * @phba: pointer to lpfc hba data structure. 7783 * 7784 * This routine is invoked to enable device interrupt and associate driver's 7785 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7786 * spec. Depends on the interrupt mode configured to the driver, the driver 7787 * will try to fallback from the configured interrupt mode to an interrupt 7788 * mode which is supported by the platform, kernel, and device in the order 7789 * of: 7790 * MSI-X -> MSI -> IRQ. 7791 * 7792 * Return codes 7793 * 0 - successful 7794 * other values - error 7795 **/ 7796static uint32_t 7797lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7798{ 7799 uint32_t intr_mode = LPFC_INTR_ERROR; 7800 int retval; 7801 7802 if (cfg_mode == 2) { 7803 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7804 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7805 if (!retval) { 7806 /* Now, try to enable MSI-X interrupt mode */ 7807 retval = lpfc_sli_enable_msix(phba); 7808 if (!retval) { 7809 /* Indicate initialization to MSI-X mode */ 7810 phba->intr_type = MSIX; 7811 intr_mode = 2; 7812 } 7813 } 7814 } 7815 7816 /* Fallback to MSI if MSI-X initialization failed */ 7817 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7818 retval = lpfc_sli_enable_msi(phba); 7819 if (!retval) { 7820 /* Indicate initialization to MSI mode */ 7821 phba->intr_type = MSI; 7822 intr_mode = 1; 7823 } 7824 } 7825 7826 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7827 if (phba->intr_type == NONE) { 7828 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7829 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7830 if (!retval) { 7831 /* Indicate initialization to INTx mode */ 7832 phba->intr_type = INTx; 7833 intr_mode = 0; 7834 } 7835 } 7836 return intr_mode; 7837} 7838 7839/** 7840 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7841 * @phba: pointer to lpfc hba data structure. 7842 * 7843 * This routine is invoked to disable device interrupt and disassociate the 7844 * driver's interrupt handler(s) from interrupt vector(s) to device with 7845 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7846 * release the interrupt vector(s) for the message signaled interrupt. 7847 **/ 7848static void 7849lpfc_sli_disable_intr(struct lpfc_hba *phba) 7850{ 7851 /* Disable the currently initialized interrupt mode */ 7852 if (phba->intr_type == MSIX) 7853 lpfc_sli_disable_msix(phba); 7854 else if (phba->intr_type == MSI) 7855 lpfc_sli_disable_msi(phba); 7856 else if (phba->intr_type == INTx) 7857 free_irq(phba->pcidev->irq, phba); 7858 7859 /* Reset interrupt management states */ 7860 phba->intr_type = NONE; 7861 phba->sli.slistat.sli_intr = 0; 7862 7863 return; 7864} 7865 7866/** 7867 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7868 * @phba: pointer to lpfc hba data structure. 7869 * 7870 * This routine is invoked to enable the MSI-X interrupt vectors to device 7871 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7872 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7873 * enables either all or nothing, depending on the current availability of 7874 * PCI vector resources. The device driver is responsible for calling the 7875 * individual request_irq() to register each MSI-X vector with a interrupt 7876 * handler, which is done in this function. Note that later when device is 7877 * unloading, the driver should always call free_irq() on all MSI-X vectors 7878 * it has done request_irq() on before calling pci_disable_msix(). Failure 7879 * to do so results in a BUG_ON() and a device will be left with MSI-X 7880 * enabled and leaks its vectors. 7881 * 7882 * Return codes 7883 * 0 - successful 7884 * other values - error 7885 **/ 7886static int 7887lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7888{ 7889 int vectors, rc, index; 7890 7891 /* Set up MSI-X multi-message vectors */ 7892 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7893 phba->sli4_hba.msix_entries[index].entry = index; 7894 7895 /* Configure MSI-X capability structure */ 7896 vectors = phba->sli4_hba.cfg_eqn; 7897enable_msix_vectors: 7898 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7899 vectors); 7900 if (rc > 1) { 7901 vectors = rc; 7902 goto enable_msix_vectors; 7903 } else if (rc) { 7904 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7905 "0484 PCI enable MSI-X failed (%d)\n", rc); 7906 goto msi_fail_out; 7907 } 7908 7909 /* Log MSI-X vector assignment */ 7910 for (index = 0; index < vectors; index++) 7911 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7912 "0489 MSI-X entry[%d]: vector=x%x " 7913 "message=%d\n", index, 7914 phba->sli4_hba.msix_entries[index].vector, 7915 phba->sli4_hba.msix_entries[index].entry); 7916 /* 7917 * Assign MSI-X vectors to interrupt handlers 7918 */ 7919 if (vectors > 1) 7920 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7921 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7922 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7923 else 7924 /* All Interrupts need to be handled by one EQ */ 7925 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7926 &lpfc_sli4_intr_handler, IRQF_SHARED, 7927 LPFC_DRIVER_NAME, phba); 7928 if (rc) { 7929 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7930 "0485 MSI-X slow-path request_irq failed " 7931 "(%d)\n", rc); 7932 goto msi_fail_out; 7933 } 7934 7935 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7936 for (index = 1; index < vectors; index++) { 7937 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7938 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7939 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7940 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7941 LPFC_FP_DRIVER_HANDLER_NAME, 7942 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7943 if (rc) { 7944 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7945 "0486 MSI-X fast-path (%d) " 7946 "request_irq failed (%d)\n", index, rc); 7947 goto cfg_fail_out; 7948 } 7949 } 7950 phba->sli4_hba.msix_vec_nr = vectors; 7951 7952 return rc; 7953 7954cfg_fail_out: 7955 /* free the irq already requested */ 7956 for (--index; index >= 1; index--) 7957 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7958 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7959 7960 /* free the irq already requested */ 7961 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7962 7963msi_fail_out: 7964 /* Unconfigure MSI-X capability structure */ 7965 pci_disable_msix(phba->pcidev); 7966 return rc; 7967} 7968 7969/** 7970 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7971 * @phba: pointer to lpfc hba data structure. 7972 * 7973 * This routine is invoked to release the MSI-X vectors and then disable the 7974 * MSI-X interrupt mode to device with SLI-4 interface spec. 7975 **/ 7976static void 7977lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7978{ 7979 int index; 7980 7981 /* Free up MSI-X multi-message vectors */ 7982 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7983 7984 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7985 free_irq(phba->sli4_hba.msix_entries[index].vector, 7986 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7987 7988 /* Disable MSI-X */ 7989 pci_disable_msix(phba->pcidev); 7990 7991 return; 7992} 7993 7994/** 7995 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7996 * @phba: pointer to lpfc hba data structure. 7997 * 7998 * This routine is invoked to enable the MSI interrupt mode to device with 7999 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8000 * to enable the MSI vector. The device driver is responsible for calling 8001 * the request_irq() to register MSI vector with a interrupt the handler, 8002 * which is done in this function. 8003 * 8004 * Return codes 8005 * 0 - successful 8006 * other values - error 8007 **/ 8008static int 8009lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8010{ 8011 int rc, index; 8012 8013 rc = pci_enable_msi(phba->pcidev); 8014 if (!rc) 8015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8016 "0487 PCI enable MSI mode success.\n"); 8017 else { 8018 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8019 "0488 PCI enable MSI mode failed (%d)\n", rc); 8020 return rc; 8021 } 8022 8023 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8024 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8025 if (rc) { 8026 pci_disable_msi(phba->pcidev); 8027 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8028 "0490 MSI request_irq failed (%d)\n", rc); 8029 return rc; 8030 } 8031 8032 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 8033 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8034 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8035 } 8036 8037 return 0; 8038} 8039 8040/** 8041 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8042 * @phba: pointer to lpfc hba data structure. 8043 * 8044 * This routine is invoked to disable the MSI interrupt mode to device with 8045 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8046 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8047 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8048 * its vector. 8049 **/ 8050static void 8051lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8052{ 8053 free_irq(phba->pcidev->irq, phba); 8054 pci_disable_msi(phba->pcidev); 8055 return; 8056} 8057 8058/** 8059 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8060 * @phba: pointer to lpfc hba data structure. 8061 * 8062 * This routine is invoked to enable device interrupt and associate driver's 8063 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8064 * interface spec. Depends on the interrupt mode configured to the driver, 8065 * the driver will try to fallback from the configured interrupt mode to an 8066 * interrupt mode which is supported by the platform, kernel, and device in 8067 * the order of: 8068 * MSI-X -> MSI -> IRQ. 8069 * 8070 * Return codes 8071 * 0 - successful 8072 * other values - error 8073 **/ 8074static uint32_t 8075lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8076{ 8077 uint32_t intr_mode = LPFC_INTR_ERROR; 8078 int retval, index; 8079 8080 if (cfg_mode == 2) { 8081 /* Preparation before conf_msi mbox cmd */ 8082 retval = 0; 8083 if (!retval) { 8084 /* Now, try to enable MSI-X interrupt mode */ 8085 retval = lpfc_sli4_enable_msix(phba); 8086 if (!retval) { 8087 /* Indicate initialization to MSI-X mode */ 8088 phba->intr_type = MSIX; 8089 intr_mode = 2; 8090 } 8091 } 8092 } 8093 8094 /* Fallback to MSI if MSI-X initialization failed */ 8095 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8096 retval = lpfc_sli4_enable_msi(phba); 8097 if (!retval) { 8098 /* Indicate initialization to MSI mode */ 8099 phba->intr_type = MSI; 8100 intr_mode = 1; 8101 } 8102 } 8103 8104 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8105 if (phba->intr_type == NONE) { 8106 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8107 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8108 if (!retval) { 8109 /* Indicate initialization to INTx mode */ 8110 phba->intr_type = INTx; 8111 intr_mode = 0; 8112 for (index = 0; index < phba->cfg_fcp_eq_count; 8113 index++) { 8114 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8115 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8116 } 8117 } 8118 } 8119 return intr_mode; 8120} 8121 8122/** 8123 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8124 * @phba: pointer to lpfc hba data structure. 8125 * 8126 * This routine is invoked to disable device interrupt and disassociate 8127 * the driver's interrupt handler(s) from interrupt vector(s) to device 8128 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8129 * will release the interrupt vector(s) for the message signaled interrupt. 8130 **/ 8131static void 8132lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8133{ 8134 /* Disable the currently initialized interrupt mode */ 8135 if (phba->intr_type == MSIX) 8136 lpfc_sli4_disable_msix(phba); 8137 else if (phba->intr_type == MSI) 8138 lpfc_sli4_disable_msi(phba); 8139 else if (phba->intr_type == INTx) 8140 free_irq(phba->pcidev->irq, phba); 8141 8142 /* Reset interrupt management states */ 8143 phba->intr_type = NONE; 8144 phba->sli.slistat.sli_intr = 0; 8145 8146 return; 8147} 8148 8149/** 8150 * lpfc_unset_hba - Unset SLI3 hba device initialization 8151 * @phba: pointer to lpfc hba data structure. 8152 * 8153 * This routine is invoked to unset the HBA device initialization steps to 8154 * a device with SLI-3 interface spec. 8155 **/ 8156static void 8157lpfc_unset_hba(struct lpfc_hba *phba) 8158{ 8159 struct lpfc_vport *vport = phba->pport; 8160 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8161 8162 spin_lock_irq(shost->host_lock); 8163 vport->load_flag |= FC_UNLOADING; 8164 spin_unlock_irq(shost->host_lock); 8165 8166 lpfc_stop_hba_timers(phba); 8167 8168 phba->pport->work_port_events = 0; 8169 8170 lpfc_sli_hba_down(phba); 8171 8172 lpfc_sli_brdrestart(phba); 8173 8174 lpfc_sli_disable_intr(phba); 8175 8176 return; 8177} 8178 8179/** 8180 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8181 * @phba: pointer to lpfc hba data structure. 8182 * 8183 * This routine is invoked to unset the HBA device initialization steps to 8184 * a device with SLI-4 interface spec. 8185 **/ 8186static void 8187lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8188{ 8189 struct lpfc_vport *vport = phba->pport; 8190 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8191 8192 spin_lock_irq(shost->host_lock); 8193 vport->load_flag |= FC_UNLOADING; 8194 spin_unlock_irq(shost->host_lock); 8195 8196 phba->pport->work_port_events = 0; 8197 8198 /* Stop the SLI4 device port */ 8199 lpfc_stop_port(phba); 8200 8201 lpfc_sli4_disable_intr(phba); 8202 8203 /* Reset SLI4 HBA FCoE function */ 8204 lpfc_pci_function_reset(phba); 8205 lpfc_sli4_queue_destroy(phba); 8206 8207 return; 8208} 8209 8210/** 8211 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8212 * @phba: Pointer to HBA context object. 8213 * 8214 * This function is called in the SLI4 code path to wait for completion 8215 * of device's XRIs exchange busy. It will check the XRI exchange busy 8216 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8217 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8218 * I/Os every 30 seconds, log error message, and wait forever. Only when 8219 * all XRI exchange busy complete, the driver unload shall proceed with 8220 * invoking the function reset ioctl mailbox command to the CNA and the 8221 * the rest of the driver unload resource release. 8222 **/ 8223static void 8224lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8225{ 8226 int wait_time = 0; 8227 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8228 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8229 8230 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8231 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8232 if (!fcp_xri_cmpl) 8233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8234 "2877 FCP XRI exchange busy " 8235 "wait time: %d seconds.\n", 8236 wait_time/1000); 8237 if (!els_xri_cmpl) 8238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8239 "2878 ELS XRI exchange busy " 8240 "wait time: %d seconds.\n", 8241 wait_time/1000); 8242 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8243 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8244 } else { 8245 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8246 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8247 } 8248 fcp_xri_cmpl = 8249 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8250 els_xri_cmpl = 8251 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8252 } 8253} 8254 8255/** 8256 * lpfc_sli4_hba_unset - Unset the fcoe hba 8257 * @phba: Pointer to HBA context object. 8258 * 8259 * This function is called in the SLI4 code path to reset the HBA's FCoE 8260 * function. The caller is not required to hold any lock. This routine 8261 * issues PCI function reset mailbox command to reset the FCoE function. 8262 * At the end of the function, it calls lpfc_hba_down_post function to 8263 * free any pending commands. 8264 **/ 8265static void 8266lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8267{ 8268 int wait_cnt = 0; 8269 LPFC_MBOXQ_t *mboxq; 8270 struct pci_dev *pdev = phba->pcidev; 8271 8272 lpfc_stop_hba_timers(phba); 8273 phba->sli4_hba.intr_enable = 0; 8274 8275 /* 8276 * Gracefully wait out the potential current outstanding asynchronous 8277 * mailbox command. 8278 */ 8279 8280 /* First, block any pending async mailbox command from posted */ 8281 spin_lock_irq(&phba->hbalock); 8282 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8283 spin_unlock_irq(&phba->hbalock); 8284 /* Now, trying to wait it out if we can */ 8285 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8286 msleep(10); 8287 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8288 break; 8289 } 8290 /* Forcefully release the outstanding mailbox command if timed out */ 8291 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8292 spin_lock_irq(&phba->hbalock); 8293 mboxq = phba->sli.mbox_active; 8294 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8295 __lpfc_mbox_cmpl_put(phba, mboxq); 8296 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8297 phba->sli.mbox_active = NULL; 8298 spin_unlock_irq(&phba->hbalock); 8299 } 8300 8301 /* Abort all iocbs associated with the hba */ 8302 lpfc_sli_hba_iocb_abort(phba); 8303 8304 /* Wait for completion of device XRI exchange busy */ 8305 lpfc_sli4_xri_exchange_busy_wait(phba); 8306 8307 /* Disable PCI subsystem interrupt */ 8308 lpfc_sli4_disable_intr(phba); 8309 8310 /* Disable SR-IOV if enabled */ 8311 if (phba->cfg_sriov_nr_virtfn) 8312 pci_disable_sriov(pdev); 8313 8314 /* Stop kthread signal shall trigger work_done one more time */ 8315 kthread_stop(phba->worker_thread); 8316 8317 /* Reset SLI4 HBA FCoE function */ 8318 lpfc_pci_function_reset(phba); 8319 lpfc_sli4_queue_destroy(phba); 8320 8321 /* Stop the SLI4 device port */ 8322 phba->pport->work_port_events = 0; 8323} 8324 8325 /** 8326 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8327 * @phba: Pointer to HBA context object. 8328 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8329 * 8330 * This function is called in the SLI4 code path to read the port's 8331 * sli4 capabilities. 8332 * 8333 * This function may be be called from any context that can block-wait 8334 * for the completion. The expectation is that this routine is called 8335 * typically from probe_one or from the online routine. 8336 **/ 8337int 8338lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8339{ 8340 int rc; 8341 struct lpfc_mqe *mqe; 8342 struct lpfc_pc_sli4_params *sli4_params; 8343 uint32_t mbox_tmo; 8344 8345 rc = 0; 8346 mqe = &mboxq->u.mqe; 8347 8348 /* Read the port's SLI4 Parameters port capabilities */ 8349 lpfc_pc_sli4_params(mboxq); 8350 if (!phba->sli4_hba.intr_enable) 8351 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8352 else { 8353 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8354 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8355 } 8356 8357 if (unlikely(rc)) 8358 return 1; 8359 8360 sli4_params = &phba->sli4_hba.pc_sli4_params; 8361 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8362 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8363 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8364 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8365 &mqe->un.sli4_params); 8366 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8367 &mqe->un.sli4_params); 8368 sli4_params->proto_types = mqe->un.sli4_params.word3; 8369 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8370 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8371 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8372 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8373 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8374 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8375 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8376 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8377 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8378 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8379 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8380 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8381 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8382 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8383 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8384 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8385 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8386 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8387 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8388 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8389 8390 /* Make sure that sge_supp_len can be handled by the driver */ 8391 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8392 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8393 8394 return rc; 8395} 8396 8397/** 8398 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8399 * @phba: Pointer to HBA context object. 8400 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8401 * 8402 * This function is called in the SLI4 code path to read the port's 8403 * sli4 capabilities. 8404 * 8405 * This function may be be called from any context that can block-wait 8406 * for the completion. The expectation is that this routine is called 8407 * typically from probe_one or from the online routine. 8408 **/ 8409int 8410lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8411{ 8412 int rc; 8413 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8414 struct lpfc_pc_sli4_params *sli4_params; 8415 uint32_t mbox_tmo; 8416 int length; 8417 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8418 8419 /* 8420 * By default, the driver assumes the SLI4 port requires RPI 8421 * header postings. The SLI4_PARAM response will correct this 8422 * assumption. 8423 */ 8424 phba->sli4_hba.rpi_hdrs_in_use = 1; 8425 8426 /* Read the port's SLI4 Config Parameters */ 8427 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8428 sizeof(struct lpfc_sli4_cfg_mhdr)); 8429 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8430 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8431 length, LPFC_SLI4_MBX_EMBED); 8432 if (!phba->sli4_hba.intr_enable) 8433 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8434 else { 8435 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8436 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8437 } 8438 if (unlikely(rc)) 8439 return rc; 8440 sli4_params = &phba->sli4_hba.pc_sli4_params; 8441 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8442 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8443 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8444 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8445 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8446 mbx_sli4_parameters); 8447 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8448 mbx_sli4_parameters); 8449 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8450 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8451 else 8452 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8453 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8454 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8455 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8456 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8457 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8458 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8459 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8460 mbx_sli4_parameters); 8461 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8462 mbx_sli4_parameters); 8463 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8464 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8465 8466 /* Make sure that sge_supp_len can be handled by the driver */ 8467 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8468 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8469 8470 return 0; 8471} 8472 8473/** 8474 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8475 * @pdev: pointer to PCI device 8476 * @pid: pointer to PCI device identifier 8477 * 8478 * This routine is to be called to attach a device with SLI-3 interface spec 8479 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8480 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8481 * information of the device and driver to see if the driver state that it can 8482 * support this kind of device. If the match is successful, the driver core 8483 * invokes this routine. If this routine determines it can claim the HBA, it 8484 * does all the initialization that it needs to do to handle the HBA properly. 8485 * 8486 * Return code 8487 * 0 - driver can claim the device 8488 * negative value - driver can not claim the device 8489 **/ 8490static int __devinit 8491lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8492{ 8493 struct lpfc_hba *phba; 8494 struct lpfc_vport *vport = NULL; 8495 struct Scsi_Host *shost = NULL; 8496 int error; 8497 uint32_t cfg_mode, intr_mode; 8498 8499 /* Allocate memory for HBA structure */ 8500 phba = lpfc_hba_alloc(pdev); 8501 if (!phba) 8502 return -ENOMEM; 8503 8504 /* Perform generic PCI device enabling operation */ 8505 error = lpfc_enable_pci_dev(phba); 8506 if (error) 8507 goto out_free_phba; 8508 8509 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8510 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8511 if (error) 8512 goto out_disable_pci_dev; 8513 8514 /* Set up SLI-3 specific device PCI memory space */ 8515 error = lpfc_sli_pci_mem_setup(phba); 8516 if (error) { 8517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8518 "1402 Failed to set up pci memory space.\n"); 8519 goto out_disable_pci_dev; 8520 } 8521 8522 /* Set up phase-1 common device driver resources */ 8523 error = lpfc_setup_driver_resource_phase1(phba); 8524 if (error) { 8525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8526 "1403 Failed to set up driver resource.\n"); 8527 goto out_unset_pci_mem_s3; 8528 } 8529 8530 /* Set up SLI-3 specific device driver resources */ 8531 error = lpfc_sli_driver_resource_setup(phba); 8532 if (error) { 8533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8534 "1404 Failed to set up driver resource.\n"); 8535 goto out_unset_pci_mem_s3; 8536 } 8537 8538 /* Initialize and populate the iocb list per host */ 8539 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8540 if (error) { 8541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8542 "1405 Failed to initialize iocb list.\n"); 8543 goto out_unset_driver_resource_s3; 8544 } 8545 8546 /* Set up common device driver resources */ 8547 error = lpfc_setup_driver_resource_phase2(phba); 8548 if (error) { 8549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8550 "1406 Failed to set up driver resource.\n"); 8551 goto out_free_iocb_list; 8552 } 8553 8554 /* Get the default values for Model Name and Description */ 8555 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8556 8557 /* Create SCSI host to the physical port */ 8558 error = lpfc_create_shost(phba); 8559 if (error) { 8560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8561 "1407 Failed to create scsi host.\n"); 8562 goto out_unset_driver_resource; 8563 } 8564 8565 /* Configure sysfs attributes */ 8566 vport = phba->pport; 8567 error = lpfc_alloc_sysfs_attr(vport); 8568 if (error) { 8569 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8570 "1476 Failed to allocate sysfs attr\n"); 8571 goto out_destroy_shost; 8572 } 8573 8574 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8575 /* Now, trying to enable interrupt and bring up the device */ 8576 cfg_mode = phba->cfg_use_msi; 8577 while (true) { 8578 /* Put device to a known state before enabling interrupt */ 8579 lpfc_stop_port(phba); 8580 /* Configure and enable interrupt */ 8581 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8582 if (intr_mode == LPFC_INTR_ERROR) { 8583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8584 "0431 Failed to enable interrupt.\n"); 8585 error = -ENODEV; 8586 goto out_free_sysfs_attr; 8587 } 8588 /* SLI-3 HBA setup */ 8589 if (lpfc_sli_hba_setup(phba)) { 8590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8591 "1477 Failed to set up hba\n"); 8592 error = -ENODEV; 8593 goto out_remove_device; 8594 } 8595 8596 /* Wait 50ms for the interrupts of previous mailbox commands */ 8597 msleep(50); 8598 /* Check active interrupts on message signaled interrupts */ 8599 if (intr_mode == 0 || 8600 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8601 /* Log the current active interrupt mode */ 8602 phba->intr_mode = intr_mode; 8603 lpfc_log_intr_mode(phba, intr_mode); 8604 break; 8605 } else { 8606 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8607 "0447 Configure interrupt mode (%d) " 8608 "failed active interrupt test.\n", 8609 intr_mode); 8610 /* Disable the current interrupt mode */ 8611 lpfc_sli_disable_intr(phba); 8612 /* Try next level of interrupt mode */ 8613 cfg_mode = --intr_mode; 8614 } 8615 } 8616 8617 /* Perform post initialization setup */ 8618 lpfc_post_init_setup(phba); 8619 8620 /* Check if there are static vports to be created. */ 8621 lpfc_create_static_vport(phba); 8622 8623 return 0; 8624 8625out_remove_device: 8626 lpfc_unset_hba(phba); 8627out_free_sysfs_attr: 8628 lpfc_free_sysfs_attr(vport); 8629out_destroy_shost: 8630 lpfc_destroy_shost(phba); 8631out_unset_driver_resource: 8632 lpfc_unset_driver_resource_phase2(phba); 8633out_free_iocb_list: 8634 lpfc_free_iocb_list(phba); 8635out_unset_driver_resource_s3: 8636 lpfc_sli_driver_resource_unset(phba); 8637out_unset_pci_mem_s3: 8638 lpfc_sli_pci_mem_unset(phba); 8639out_disable_pci_dev: 8640 lpfc_disable_pci_dev(phba); 8641 if (shost) 8642 scsi_host_put(shost); 8643out_free_phba: 8644 lpfc_hba_free(phba); 8645 return error; 8646} 8647 8648/** 8649 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8650 * @pdev: pointer to PCI device 8651 * 8652 * This routine is to be called to disattach a device with SLI-3 interface 8653 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8654 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8655 * device to be removed from the PCI subsystem properly. 8656 **/ 8657static void __devexit 8658lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8659{ 8660 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8661 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8662 struct lpfc_vport **vports; 8663 struct lpfc_hba *phba = vport->phba; 8664 int i; 8665 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8666 8667 spin_lock_irq(&phba->hbalock); 8668 vport->load_flag |= FC_UNLOADING; 8669 spin_unlock_irq(&phba->hbalock); 8670 8671 lpfc_free_sysfs_attr(vport); 8672 8673 /* Release all the vports against this physical port */ 8674 vports = lpfc_create_vport_work_array(phba); 8675 if (vports != NULL) 8676 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8677 fc_vport_terminate(vports[i]->fc_vport); 8678 lpfc_destroy_vport_work_array(phba, vports); 8679 8680 /* Remove FC host and then SCSI host with the physical port */ 8681 fc_remove_host(shost); 8682 scsi_remove_host(shost); 8683 lpfc_cleanup(vport); 8684 8685 /* 8686 * Bring down the SLI Layer. This step disable all interrupts, 8687 * clears the rings, discards all mailbox commands, and resets 8688 * the HBA. 8689 */ 8690 8691 /* HBA interrupt will be disabled after this call */ 8692 lpfc_sli_hba_down(phba); 8693 /* Stop kthread signal shall trigger work_done one more time */ 8694 kthread_stop(phba->worker_thread); 8695 /* Final cleanup of txcmplq and reset the HBA */ 8696 lpfc_sli_brdrestart(phba); 8697 8698 lpfc_stop_hba_timers(phba); 8699 spin_lock_irq(&phba->hbalock); 8700 list_del_init(&vport->listentry); 8701 spin_unlock_irq(&phba->hbalock); 8702 8703 lpfc_debugfs_terminate(vport); 8704 8705 /* Disable SR-IOV if enabled */ 8706 if (phba->cfg_sriov_nr_virtfn) 8707 pci_disable_sriov(pdev); 8708 8709 /* Disable interrupt */ 8710 lpfc_sli_disable_intr(phba); 8711 8712 pci_set_drvdata(pdev, NULL); 8713 scsi_host_put(shost); 8714 8715 /* 8716 * Call scsi_free before mem_free since scsi bufs are released to their 8717 * corresponding pools here. 8718 */ 8719 lpfc_scsi_free(phba); 8720 lpfc_mem_free_all(phba); 8721 8722 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8723 phba->hbqslimp.virt, phba->hbqslimp.phys); 8724 8725 /* Free resources associated with SLI2 interface */ 8726 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8727 phba->slim2p.virt, phba->slim2p.phys); 8728 8729 /* unmap adapter SLIM and Control Registers */ 8730 iounmap(phba->ctrl_regs_memmap_p); 8731 iounmap(phba->slim_memmap_p); 8732 8733 lpfc_hba_free(phba); 8734 8735 pci_release_selected_regions(pdev, bars); 8736 pci_disable_device(pdev); 8737} 8738 8739/** 8740 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8741 * @pdev: pointer to PCI device 8742 * @msg: power management message 8743 * 8744 * This routine is to be called from the kernel's PCI subsystem to support 8745 * system Power Management (PM) to device with SLI-3 interface spec. When 8746 * PM invokes this method, it quiesces the device by stopping the driver's 8747 * worker thread for the device, turning off device's interrupt and DMA, 8748 * and bring the device offline. Note that as the driver implements the 8749 * minimum PM requirements to a power-aware driver's PM support for the 8750 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8751 * to the suspend() method call will be treated as SUSPEND and the driver will 8752 * fully reinitialize its device during resume() method call, the driver will 8753 * set device to PCI_D3hot state in PCI config space instead of setting it 8754 * according to the @msg provided by the PM. 8755 * 8756 * Return code 8757 * 0 - driver suspended the device 8758 * Error otherwise 8759 **/ 8760static int 8761lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8762{ 8763 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8764 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8765 8766 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8767 "0473 PCI device Power Management suspend.\n"); 8768 8769 /* Bring down the device */ 8770 lpfc_offline_prep(phba); 8771 lpfc_offline(phba); 8772 kthread_stop(phba->worker_thread); 8773 8774 /* Disable interrupt from device */ 8775 lpfc_sli_disable_intr(phba); 8776 8777 /* Save device state to PCI config space */ 8778 pci_save_state(pdev); 8779 pci_set_power_state(pdev, PCI_D3hot); 8780 8781 return 0; 8782} 8783 8784/** 8785 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8786 * @pdev: pointer to PCI device 8787 * 8788 * This routine is to be called from the kernel's PCI subsystem to support 8789 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8790 * invokes this method, it restores the device's PCI config space state and 8791 * fully reinitializes the device and brings it online. Note that as the 8792 * driver implements the minimum PM requirements to a power-aware driver's 8793 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8794 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8795 * driver will fully reinitialize its device during resume() method call, 8796 * the device will be set to PCI_D0 directly in PCI config space before 8797 * restoring the state. 8798 * 8799 * Return code 8800 * 0 - driver suspended the device 8801 * Error otherwise 8802 **/ 8803static int 8804lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8805{ 8806 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8807 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8808 uint32_t intr_mode; 8809 int error; 8810 8811 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8812 "0452 PCI device Power Management resume.\n"); 8813 8814 /* Restore device state from PCI config space */ 8815 pci_set_power_state(pdev, PCI_D0); 8816 pci_restore_state(pdev); 8817 8818 /* 8819 * As the new kernel behavior of pci_restore_state() API call clears 8820 * device saved_state flag, need to save the restored state again. 8821 */ 8822 pci_save_state(pdev); 8823 8824 if (pdev->is_busmaster) 8825 pci_set_master(pdev); 8826 8827 /* Startup the kernel thread for this host adapter. */ 8828 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8829 "lpfc_worker_%d", phba->brd_no); 8830 if (IS_ERR(phba->worker_thread)) { 8831 error = PTR_ERR(phba->worker_thread); 8832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8833 "0434 PM resume failed to start worker " 8834 "thread: error=x%x.\n", error); 8835 return error; 8836 } 8837 8838 /* Configure and enable interrupt */ 8839 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8840 if (intr_mode == LPFC_INTR_ERROR) { 8841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8842 "0430 PM resume Failed to enable interrupt\n"); 8843 return -EIO; 8844 } else 8845 phba->intr_mode = intr_mode; 8846 8847 /* Restart HBA and bring it online */ 8848 lpfc_sli_brdrestart(phba); 8849 lpfc_online(phba); 8850 8851 /* Log the current active interrupt mode */ 8852 lpfc_log_intr_mode(phba, phba->intr_mode); 8853 8854 return 0; 8855} 8856 8857/** 8858 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8859 * @phba: pointer to lpfc hba data structure. 8860 * 8861 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8862 * aborts all the outstanding SCSI I/Os to the pci device. 8863 **/ 8864static void 8865lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8866{ 8867 struct lpfc_sli *psli = &phba->sli; 8868 struct lpfc_sli_ring *pring; 8869 8870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8871 "2723 PCI channel I/O abort preparing for recovery\n"); 8872 8873 /* 8874 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8875 * and let the SCSI mid-layer to retry them to recover. 8876 */ 8877 pring = &psli->ring[psli->fcp_ring]; 8878 lpfc_sli_abort_iocb_ring(phba, pring); 8879} 8880 8881/** 8882 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8883 * @phba: pointer to lpfc hba data structure. 8884 * 8885 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8886 * disables the device interrupt and pci device, and aborts the internal FCP 8887 * pending I/Os. 8888 **/ 8889static void 8890lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8891{ 8892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8893 "2710 PCI channel disable preparing for reset\n"); 8894 8895 /* Block any management I/Os to the device */ 8896 lpfc_block_mgmt_io(phba); 8897 8898 /* Block all SCSI devices' I/Os on the host */ 8899 lpfc_scsi_dev_block(phba); 8900 8901 /* stop all timers */ 8902 lpfc_stop_hba_timers(phba); 8903 8904 /* Disable interrupt and pci device */ 8905 lpfc_sli_disable_intr(phba); 8906 pci_disable_device(phba->pcidev); 8907 8908 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8909 lpfc_sli_flush_fcp_rings(phba); 8910} 8911 8912/** 8913 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8914 * @phba: pointer to lpfc hba data structure. 8915 * 8916 * This routine is called to prepare the SLI3 device for PCI slot permanently 8917 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8918 * pending I/Os. 8919 **/ 8920static void 8921lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8922{ 8923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8924 "2711 PCI channel permanent disable for failure\n"); 8925 /* Block all SCSI devices' I/Os on the host */ 8926 lpfc_scsi_dev_block(phba); 8927 8928 /* stop all timers */ 8929 lpfc_stop_hba_timers(phba); 8930 8931 /* Clean up all driver's outstanding SCSI I/Os */ 8932 lpfc_sli_flush_fcp_rings(phba); 8933} 8934 8935/** 8936 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8937 * @pdev: pointer to PCI device. 8938 * @state: the current PCI connection state. 8939 * 8940 * This routine is called from the PCI subsystem for I/O error handling to 8941 * device with SLI-3 interface spec. This function is called by the PCI 8942 * subsystem after a PCI bus error affecting this device has been detected. 8943 * When this function is invoked, it will need to stop all the I/Os and 8944 * interrupt(s) to the device. Once that is done, it will return 8945 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8946 * as desired. 8947 * 8948 * Return codes 8949 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8950 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8951 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8952 **/ 8953static pci_ers_result_t 8954lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8955{ 8956 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8957 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8958 8959 switch (state) { 8960 case pci_channel_io_normal: 8961 /* Non-fatal error, prepare for recovery */ 8962 lpfc_sli_prep_dev_for_recover(phba); 8963 return PCI_ERS_RESULT_CAN_RECOVER; 8964 case pci_channel_io_frozen: 8965 /* Fatal error, prepare for slot reset */ 8966 lpfc_sli_prep_dev_for_reset(phba); 8967 return PCI_ERS_RESULT_NEED_RESET; 8968 case pci_channel_io_perm_failure: 8969 /* Permanent failure, prepare for device down */ 8970 lpfc_sli_prep_dev_for_perm_failure(phba); 8971 return PCI_ERS_RESULT_DISCONNECT; 8972 default: 8973 /* Unknown state, prepare and request slot reset */ 8974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8975 "0472 Unknown PCI error state: x%x\n", state); 8976 lpfc_sli_prep_dev_for_reset(phba); 8977 return PCI_ERS_RESULT_NEED_RESET; 8978 } 8979} 8980 8981/** 8982 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8983 * @pdev: pointer to PCI device. 8984 * 8985 * This routine is called from the PCI subsystem for error handling to 8986 * device with SLI-3 interface spec. This is called after PCI bus has been 8987 * reset to restart the PCI card from scratch, as if from a cold-boot. 8988 * During the PCI subsystem error recovery, after driver returns 8989 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8990 * recovery and then call this routine before calling the .resume method 8991 * to recover the device. This function will initialize the HBA device, 8992 * enable the interrupt, but it will just put the HBA to offline state 8993 * without passing any I/O traffic. 8994 * 8995 * Return codes 8996 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8997 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8998 */ 8999static pci_ers_result_t 9000lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9001{ 9002 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9003 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9004 struct lpfc_sli *psli = &phba->sli; 9005 uint32_t intr_mode; 9006 9007 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9008 if (pci_enable_device_mem(pdev)) { 9009 printk(KERN_ERR "lpfc: Cannot re-enable " 9010 "PCI device after reset.\n"); 9011 return PCI_ERS_RESULT_DISCONNECT; 9012 } 9013 9014 pci_restore_state(pdev); 9015 9016 /* 9017 * As the new kernel behavior of pci_restore_state() API call clears 9018 * device saved_state flag, need to save the restored state again. 9019 */ 9020 pci_save_state(pdev); 9021 9022 if (pdev->is_busmaster) 9023 pci_set_master(pdev); 9024 9025 spin_lock_irq(&phba->hbalock); 9026 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9027 spin_unlock_irq(&phba->hbalock); 9028 9029 /* Configure and enable interrupt */ 9030 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9031 if (intr_mode == LPFC_INTR_ERROR) { 9032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9033 "0427 Cannot re-enable interrupt after " 9034 "slot reset.\n"); 9035 return PCI_ERS_RESULT_DISCONNECT; 9036 } else 9037 phba->intr_mode = intr_mode; 9038 9039 /* Take device offline, it will perform cleanup */ 9040 lpfc_offline_prep(phba); 9041 lpfc_offline(phba); 9042 lpfc_sli_brdrestart(phba); 9043 9044 /* Log the current active interrupt mode */ 9045 lpfc_log_intr_mode(phba, phba->intr_mode); 9046 9047 return PCI_ERS_RESULT_RECOVERED; 9048} 9049 9050/** 9051 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9052 * @pdev: pointer to PCI device 9053 * 9054 * This routine is called from the PCI subsystem for error handling to device 9055 * with SLI-3 interface spec. It is called when kernel error recovery tells 9056 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9057 * error recovery. After this call, traffic can start to flow from this device 9058 * again. 9059 */ 9060static void 9061lpfc_io_resume_s3(struct pci_dev *pdev) 9062{ 9063 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9064 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9065 9066 /* Bring device online, it will be no-op for non-fatal error resume */ 9067 lpfc_online(phba); 9068 9069 /* Clean up Advanced Error Reporting (AER) if needed */ 9070 if (phba->hba_flag & HBA_AER_ENABLED) 9071 pci_cleanup_aer_uncorrect_error_status(pdev); 9072} 9073 9074/** 9075 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9076 * @phba: pointer to lpfc hba data structure. 9077 * 9078 * returns the number of ELS/CT IOCBs to reserve 9079 **/ 9080int 9081lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9082{ 9083 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9084 9085 if (phba->sli_rev == LPFC_SLI_REV4) { 9086 if (max_xri <= 100) 9087 return 10; 9088 else if (max_xri <= 256) 9089 return 25; 9090 else if (max_xri <= 512) 9091 return 50; 9092 else if (max_xri <= 1024) 9093 return 100; 9094 else 9095 return 150; 9096 } else 9097 return 0; 9098} 9099 9100/** 9101 * lpfc_write_firmware - attempt to write a firmware image to the port 9102 * @phba: pointer to lpfc hba data structure. 9103 * @fw: pointer to firmware image returned from request_firmware. 9104 * 9105 * returns the number of bytes written if write is successful. 9106 * returns a negative error value if there were errors. 9107 * returns 0 if firmware matches currently active firmware on port. 9108 **/ 9109int 9110lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 9111{ 9112 char fwrev[FW_REV_STR_SIZE]; 9113 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 9114 struct list_head dma_buffer_list; 9115 int i, rc = 0; 9116 struct lpfc_dmabuf *dmabuf, *next; 9117 uint32_t offset = 0, temp_offset = 0; 9118 9119 INIT_LIST_HEAD(&dma_buffer_list); 9120 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9121 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9122 LPFC_FILE_TYPE_GROUP) || 9123 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9124 (be32_to_cpu(image->size) != fw->size)) { 9125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9126 "3022 Invalid FW image found. " 9127 "Magic:%x Type:%x ID:%x\n", 9128 be32_to_cpu(image->magic_number), 9129 bf_get_be32(lpfc_grp_hdr_file_type, image), 9130 bf_get_be32(lpfc_grp_hdr_id, image)); 9131 return -EINVAL; 9132 } 9133 lpfc_decode_firmware_rev(phba, fwrev, 1); 9134 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9136 "3023 Updating Firmware. Current Version:%s " 9137 "New Version:%s\n", 9138 fwrev, image->revision); 9139 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9140 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9141 GFP_KERNEL); 9142 if (!dmabuf) { 9143 rc = -ENOMEM; 9144 goto out; 9145 } 9146 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9147 SLI4_PAGE_SIZE, 9148 &dmabuf->phys, 9149 GFP_KERNEL); 9150 if (!dmabuf->virt) { 9151 kfree(dmabuf); 9152 rc = -ENOMEM; 9153 goto out; 9154 } 9155 list_add_tail(&dmabuf->list, &dma_buffer_list); 9156 } 9157 while (offset < fw->size) { 9158 temp_offset = offset; 9159 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9160 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9161 memcpy(dmabuf->virt, 9162 fw->data + temp_offset, 9163 fw->size - temp_offset); 9164 temp_offset = fw->size; 9165 break; 9166 } 9167 memcpy(dmabuf->virt, fw->data + temp_offset, 9168 SLI4_PAGE_SIZE); 9169 temp_offset += SLI4_PAGE_SIZE; 9170 } 9171 rc = lpfc_wr_object(phba, &dma_buffer_list, 9172 (fw->size - offset), &offset); 9173 if (rc) { 9174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9175 "3024 Firmware update failed. " 9176 "%d\n", rc); 9177 goto out; 9178 } 9179 } 9180 rc = offset; 9181 } 9182out: 9183 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9184 list_del(&dmabuf->list); 9185 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9186 dmabuf->virt, dmabuf->phys); 9187 kfree(dmabuf); 9188 } 9189 return rc; 9190} 9191 9192/** 9193 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9194 * @pdev: pointer to PCI device 9195 * @pid: pointer to PCI device identifier 9196 * 9197 * This routine is called from the kernel's PCI subsystem to device with 9198 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9199 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9200 * information of the device and driver to see if the driver state that it 9201 * can support this kind of device. If the match is successful, the driver 9202 * core invokes this routine. If this routine determines it can claim the HBA, 9203 * it does all the initialization that it needs to do to handle the HBA 9204 * properly. 9205 * 9206 * Return code 9207 * 0 - driver can claim the device 9208 * negative value - driver can not claim the device 9209 **/ 9210static int __devinit 9211lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9212{ 9213 struct lpfc_hba *phba; 9214 struct lpfc_vport *vport = NULL; 9215 struct Scsi_Host *shost = NULL; 9216 int error; 9217 uint32_t cfg_mode, intr_mode; 9218 int mcnt; 9219 int adjusted_fcp_eq_count; 9220 const struct firmware *fw; 9221 uint8_t file_name[16]; 9222 9223 /* Allocate memory for HBA structure */ 9224 phba = lpfc_hba_alloc(pdev); 9225 if (!phba) 9226 return -ENOMEM; 9227 9228 /* Perform generic PCI device enabling operation */ 9229 error = lpfc_enable_pci_dev(phba); 9230 if (error) 9231 goto out_free_phba; 9232 9233 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9234 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9235 if (error) 9236 goto out_disable_pci_dev; 9237 9238 /* Set up SLI-4 specific device PCI memory space */ 9239 error = lpfc_sli4_pci_mem_setup(phba); 9240 if (error) { 9241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9242 "1410 Failed to set up pci memory space.\n"); 9243 goto out_disable_pci_dev; 9244 } 9245 9246 /* Set up phase-1 common device driver resources */ 9247 error = lpfc_setup_driver_resource_phase1(phba); 9248 if (error) { 9249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9250 "1411 Failed to set up driver resource.\n"); 9251 goto out_unset_pci_mem_s4; 9252 } 9253 9254 /* Set up SLI-4 Specific device driver resources */ 9255 error = lpfc_sli4_driver_resource_setup(phba); 9256 if (error) { 9257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9258 "1412 Failed to set up driver resource.\n"); 9259 goto out_unset_pci_mem_s4; 9260 } 9261 9262 /* Initialize and populate the iocb list per host */ 9263 9264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9265 "2821 initialize iocb list %d.\n", 9266 phba->cfg_iocb_cnt*1024); 9267 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9268 9269 if (error) { 9270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9271 "1413 Failed to initialize iocb list.\n"); 9272 goto out_unset_driver_resource_s4; 9273 } 9274 9275 INIT_LIST_HEAD(&phba->active_rrq_list); 9276 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9277 9278 /* Set up common device driver resources */ 9279 error = lpfc_setup_driver_resource_phase2(phba); 9280 if (error) { 9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9282 "1414 Failed to set up driver resource.\n"); 9283 goto out_free_iocb_list; 9284 } 9285 9286 /* Get the default values for Model Name and Description */ 9287 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9288 9289 /* Create SCSI host to the physical port */ 9290 error = lpfc_create_shost(phba); 9291 if (error) { 9292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9293 "1415 Failed to create scsi host.\n"); 9294 goto out_unset_driver_resource; 9295 } 9296 9297 /* Configure sysfs attributes */ 9298 vport = phba->pport; 9299 error = lpfc_alloc_sysfs_attr(vport); 9300 if (error) { 9301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9302 "1416 Failed to allocate sysfs attr\n"); 9303 goto out_destroy_shost; 9304 } 9305 9306 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9307 /* Now, trying to enable interrupt and bring up the device */ 9308 cfg_mode = phba->cfg_use_msi; 9309 while (true) { 9310 /* Put device to a known state before enabling interrupt */ 9311 lpfc_stop_port(phba); 9312 /* Configure and enable interrupt */ 9313 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9314 if (intr_mode == LPFC_INTR_ERROR) { 9315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9316 "0426 Failed to enable interrupt.\n"); 9317 error = -ENODEV; 9318 goto out_free_sysfs_attr; 9319 } 9320 /* Default to single EQ for non-MSI-X */ 9321 if (phba->intr_type != MSIX) 9322 adjusted_fcp_eq_count = 0; 9323 else if (phba->sli4_hba.msix_vec_nr < 9324 phba->cfg_fcp_eq_count + 1) 9325 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9326 else 9327 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9328 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9329 /* Set up SLI-4 HBA */ 9330 if (lpfc_sli4_hba_setup(phba)) { 9331 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9332 "1421 Failed to set up hba\n"); 9333 error = -ENODEV; 9334 goto out_disable_intr; 9335 } 9336 9337 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9338 if (intr_mode != 0) 9339 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9340 LPFC_ACT_INTR_CNT); 9341 9342 /* Check active interrupts received only for MSI/MSI-X */ 9343 if (intr_mode == 0 || 9344 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9345 /* Log the current active interrupt mode */ 9346 phba->intr_mode = intr_mode; 9347 lpfc_log_intr_mode(phba, intr_mode); 9348 break; 9349 } 9350 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9351 "0451 Configure interrupt mode (%d) " 9352 "failed active interrupt test.\n", 9353 intr_mode); 9354 /* Unset the previous SLI-4 HBA setup. */ 9355 /* 9356 * TODO: Is this operation compatible with IF TYPE 2 9357 * devices? All port state is deleted and cleared. 9358 */ 9359 lpfc_sli4_unset_hba(phba); 9360 /* Try next level of interrupt mode */ 9361 cfg_mode = --intr_mode; 9362 } 9363 9364 /* Perform post initialization setup */ 9365 lpfc_post_init_setup(phba); 9366 9367 /* check for firmware upgrade or downgrade (if_type 2 only) */ 9368 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 9369 LPFC_SLI_INTF_IF_TYPE_2) { 9370 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9371 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9372 if (!error) { 9373 lpfc_write_firmware(phba, fw); 9374 release_firmware(fw); 9375 } 9376 } 9377 9378 /* Check if there are static vports to be created. */ 9379 lpfc_create_static_vport(phba); 9380 return 0; 9381 9382out_disable_intr: 9383 lpfc_sli4_disable_intr(phba); 9384out_free_sysfs_attr: 9385 lpfc_free_sysfs_attr(vport); 9386out_destroy_shost: 9387 lpfc_destroy_shost(phba); 9388out_unset_driver_resource: 9389 lpfc_unset_driver_resource_phase2(phba); 9390out_free_iocb_list: 9391 lpfc_free_iocb_list(phba); 9392out_unset_driver_resource_s4: 9393 lpfc_sli4_driver_resource_unset(phba); 9394out_unset_pci_mem_s4: 9395 lpfc_sli4_pci_mem_unset(phba); 9396out_disable_pci_dev: 9397 lpfc_disable_pci_dev(phba); 9398 if (shost) 9399 scsi_host_put(shost); 9400out_free_phba: 9401 lpfc_hba_free(phba); 9402 return error; 9403} 9404 9405/** 9406 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9407 * @pdev: pointer to PCI device 9408 * 9409 * This routine is called from the kernel's PCI subsystem to device with 9410 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9411 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9412 * device to be removed from the PCI subsystem properly. 9413 **/ 9414static void __devexit 9415lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9416{ 9417 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9418 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9419 struct lpfc_vport **vports; 9420 struct lpfc_hba *phba = vport->phba; 9421 int i; 9422 9423 /* Mark the device unloading flag */ 9424 spin_lock_irq(&phba->hbalock); 9425 vport->load_flag |= FC_UNLOADING; 9426 spin_unlock_irq(&phba->hbalock); 9427 9428 /* Free the HBA sysfs attributes */ 9429 lpfc_free_sysfs_attr(vport); 9430 9431 /* Release all the vports against this physical port */ 9432 vports = lpfc_create_vport_work_array(phba); 9433 if (vports != NULL) 9434 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 9435 fc_vport_terminate(vports[i]->fc_vport); 9436 lpfc_destroy_vport_work_array(phba, vports); 9437 9438 /* Remove FC host and then SCSI host with the physical port */ 9439 fc_remove_host(shost); 9440 scsi_remove_host(shost); 9441 9442 /* Perform cleanup on the physical port */ 9443 lpfc_cleanup(vport); 9444 9445 /* 9446 * Bring down the SLI Layer. This step disables all interrupts, 9447 * clears the rings, discards all mailbox commands, and resets 9448 * the HBA FCoE function. 9449 */ 9450 lpfc_debugfs_terminate(vport); 9451 lpfc_sli4_hba_unset(phba); 9452 9453 spin_lock_irq(&phba->hbalock); 9454 list_del_init(&vport->listentry); 9455 spin_unlock_irq(&phba->hbalock); 9456 9457 /* Perform scsi free before driver resource_unset since scsi 9458 * buffers are released to their corresponding pools here. 9459 */ 9460 lpfc_scsi_free(phba); 9461 lpfc_sli4_driver_resource_unset(phba); 9462 9463 /* Unmap adapter Control and Doorbell registers */ 9464 lpfc_sli4_pci_mem_unset(phba); 9465 9466 /* Release PCI resources and disable device's PCI function */ 9467 scsi_host_put(shost); 9468 lpfc_disable_pci_dev(phba); 9469 9470 /* Finally, free the driver's device data structure */ 9471 lpfc_hba_free(phba); 9472 9473 return; 9474} 9475 9476/** 9477 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9478 * @pdev: pointer to PCI device 9479 * @msg: power management message 9480 * 9481 * This routine is called from the kernel's PCI subsystem to support system 9482 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9483 * this method, it quiesces the device by stopping the driver's worker 9484 * thread for the device, turning off device's interrupt and DMA, and bring 9485 * the device offline. Note that as the driver implements the minimum PM 9486 * requirements to a power-aware driver's PM support for suspend/resume -- all 9487 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9488 * method call will be treated as SUSPEND and the driver will fully 9489 * reinitialize its device during resume() method call, the driver will set 9490 * device to PCI_D3hot state in PCI config space instead of setting it 9491 * according to the @msg provided by the PM. 9492 * 9493 * Return code 9494 * 0 - driver suspended the device 9495 * Error otherwise 9496 **/ 9497static int 9498lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9499{ 9500 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9501 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9502 9503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9504 "2843 PCI device Power Management suspend.\n"); 9505 9506 /* Bring down the device */ 9507 lpfc_offline_prep(phba); 9508 lpfc_offline(phba); 9509 kthread_stop(phba->worker_thread); 9510 9511 /* Disable interrupt from device */ 9512 lpfc_sli4_disable_intr(phba); 9513 lpfc_sli4_queue_destroy(phba); 9514 9515 /* Save device state to PCI config space */ 9516 pci_save_state(pdev); 9517 pci_set_power_state(pdev, PCI_D3hot); 9518 9519 return 0; 9520} 9521 9522/** 9523 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9524 * @pdev: pointer to PCI device 9525 * 9526 * This routine is called from the kernel's PCI subsystem to support system 9527 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9528 * this method, it restores the device's PCI config space state and fully 9529 * reinitializes the device and brings it online. Note that as the driver 9530 * implements the minimum PM requirements to a power-aware driver's PM for 9531 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9532 * to the suspend() method call will be treated as SUSPEND and the driver 9533 * will fully reinitialize its device during resume() method call, the device 9534 * will be set to PCI_D0 directly in PCI config space before restoring the 9535 * state. 9536 * 9537 * Return code 9538 * 0 - driver suspended the device 9539 * Error otherwise 9540 **/ 9541static int 9542lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9543{ 9544 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9545 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9546 uint32_t intr_mode; 9547 int error; 9548 9549 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9550 "0292 PCI device Power Management resume.\n"); 9551 9552 /* Restore device state from PCI config space */ 9553 pci_set_power_state(pdev, PCI_D0); 9554 pci_restore_state(pdev); 9555 9556 /* 9557 * As the new kernel behavior of pci_restore_state() API call clears 9558 * device saved_state flag, need to save the restored state again. 9559 */ 9560 pci_save_state(pdev); 9561 9562 if (pdev->is_busmaster) 9563 pci_set_master(pdev); 9564 9565 /* Startup the kernel thread for this host adapter. */ 9566 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9567 "lpfc_worker_%d", phba->brd_no); 9568 if (IS_ERR(phba->worker_thread)) { 9569 error = PTR_ERR(phba->worker_thread); 9570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9571 "0293 PM resume failed to start worker " 9572 "thread: error=x%x.\n", error); 9573 return error; 9574 } 9575 9576 /* Configure and enable interrupt */ 9577 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9578 if (intr_mode == LPFC_INTR_ERROR) { 9579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9580 "0294 PM resume Failed to enable interrupt\n"); 9581 return -EIO; 9582 } else 9583 phba->intr_mode = intr_mode; 9584 9585 /* Restart HBA and bring it online */ 9586 lpfc_sli_brdrestart(phba); 9587 lpfc_online(phba); 9588 9589 /* Log the current active interrupt mode */ 9590 lpfc_log_intr_mode(phba, phba->intr_mode); 9591 9592 return 0; 9593} 9594 9595/** 9596 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9597 * @phba: pointer to lpfc hba data structure. 9598 * 9599 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9600 * aborts all the outstanding SCSI I/Os to the pci device. 9601 **/ 9602static void 9603lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9604{ 9605 struct lpfc_sli *psli = &phba->sli; 9606 struct lpfc_sli_ring *pring; 9607 9608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9609 "2828 PCI channel I/O abort preparing for recovery\n"); 9610 /* 9611 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9612 * and let the SCSI mid-layer to retry them to recover. 9613 */ 9614 pring = &psli->ring[psli->fcp_ring]; 9615 lpfc_sli_abort_iocb_ring(phba, pring); 9616} 9617 9618/** 9619 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9620 * @phba: pointer to lpfc hba data structure. 9621 * 9622 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9623 * disables the device interrupt and pci device, and aborts the internal FCP 9624 * pending I/Os. 9625 **/ 9626static void 9627lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9628{ 9629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9630 "2826 PCI channel disable preparing for reset\n"); 9631 9632 /* Block any management I/Os to the device */ 9633 lpfc_block_mgmt_io(phba); 9634 9635 /* Block all SCSI devices' I/Os on the host */ 9636 lpfc_scsi_dev_block(phba); 9637 9638 /* stop all timers */ 9639 lpfc_stop_hba_timers(phba); 9640 9641 /* Disable interrupt and pci device */ 9642 lpfc_sli4_disable_intr(phba); 9643 lpfc_sli4_queue_destroy(phba); 9644 pci_disable_device(phba->pcidev); 9645 9646 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9647 lpfc_sli_flush_fcp_rings(phba); 9648} 9649 9650/** 9651 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9652 * @phba: pointer to lpfc hba data structure. 9653 * 9654 * This routine is called to prepare the SLI4 device for PCI slot permanently 9655 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9656 * pending I/Os. 9657 **/ 9658static void 9659lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9660{ 9661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9662 "2827 PCI channel permanent disable for failure\n"); 9663 9664 /* Block all SCSI devices' I/Os on the host */ 9665 lpfc_scsi_dev_block(phba); 9666 9667 /* stop all timers */ 9668 lpfc_stop_hba_timers(phba); 9669 9670 /* Clean up all driver's outstanding SCSI I/Os */ 9671 lpfc_sli_flush_fcp_rings(phba); 9672} 9673 9674/** 9675 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9676 * @pdev: pointer to PCI device. 9677 * @state: the current PCI connection state. 9678 * 9679 * This routine is called from the PCI subsystem for error handling to device 9680 * with SLI-4 interface spec. This function is called by the PCI subsystem 9681 * after a PCI bus error affecting this device has been detected. When this 9682 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9683 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9684 * for the PCI subsystem to perform proper recovery as desired. 9685 * 9686 * Return codes 9687 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9688 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9689 **/ 9690static pci_ers_result_t 9691lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9692{ 9693 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9694 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9695 9696 switch (state) { 9697 case pci_channel_io_normal: 9698 /* Non-fatal error, prepare for recovery */ 9699 lpfc_sli4_prep_dev_for_recover(phba); 9700 return PCI_ERS_RESULT_CAN_RECOVER; 9701 case pci_channel_io_frozen: 9702 /* Fatal error, prepare for slot reset */ 9703 lpfc_sli4_prep_dev_for_reset(phba); 9704 return PCI_ERS_RESULT_NEED_RESET; 9705 case pci_channel_io_perm_failure: 9706 /* Permanent failure, prepare for device down */ 9707 lpfc_sli4_prep_dev_for_perm_failure(phba); 9708 return PCI_ERS_RESULT_DISCONNECT; 9709 default: 9710 /* Unknown state, prepare and request slot reset */ 9711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9712 "2825 Unknown PCI error state: x%x\n", state); 9713 lpfc_sli4_prep_dev_for_reset(phba); 9714 return PCI_ERS_RESULT_NEED_RESET; 9715 } 9716} 9717 9718/** 9719 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9720 * @pdev: pointer to PCI device. 9721 * 9722 * This routine is called from the PCI subsystem for error handling to device 9723 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9724 * restart the PCI card from scratch, as if from a cold-boot. During the 9725 * PCI subsystem error recovery, after the driver returns 9726 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9727 * recovery and then call this routine before calling the .resume method to 9728 * recover the device. This function will initialize the HBA device, enable 9729 * the interrupt, but it will just put the HBA to offline state without 9730 * passing any I/O traffic. 9731 * 9732 * Return codes 9733 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9734 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9735 */ 9736static pci_ers_result_t 9737lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9738{ 9739 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9740 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9741 struct lpfc_sli *psli = &phba->sli; 9742 uint32_t intr_mode; 9743 9744 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9745 if (pci_enable_device_mem(pdev)) { 9746 printk(KERN_ERR "lpfc: Cannot re-enable " 9747 "PCI device after reset.\n"); 9748 return PCI_ERS_RESULT_DISCONNECT; 9749 } 9750 9751 pci_restore_state(pdev); 9752 9753 /* 9754 * As the new kernel behavior of pci_restore_state() API call clears 9755 * device saved_state flag, need to save the restored state again. 9756 */ 9757 pci_save_state(pdev); 9758 9759 if (pdev->is_busmaster) 9760 pci_set_master(pdev); 9761 9762 spin_lock_irq(&phba->hbalock); 9763 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9764 spin_unlock_irq(&phba->hbalock); 9765 9766 /* Configure and enable interrupt */ 9767 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9768 if (intr_mode == LPFC_INTR_ERROR) { 9769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9770 "2824 Cannot re-enable interrupt after " 9771 "slot reset.\n"); 9772 return PCI_ERS_RESULT_DISCONNECT; 9773 } else 9774 phba->intr_mode = intr_mode; 9775 9776 /* Log the current active interrupt mode */ 9777 lpfc_log_intr_mode(phba, phba->intr_mode); 9778 9779 return PCI_ERS_RESULT_RECOVERED; 9780} 9781 9782/** 9783 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9784 * @pdev: pointer to PCI device 9785 * 9786 * This routine is called from the PCI subsystem for error handling to device 9787 * with SLI-4 interface spec. It is called when kernel error recovery tells 9788 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9789 * error recovery. After this call, traffic can start to flow from this device 9790 * again. 9791 **/ 9792static void 9793lpfc_io_resume_s4(struct pci_dev *pdev) 9794{ 9795 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9796 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9797 9798 /* 9799 * In case of slot reset, as function reset is performed through 9800 * mailbox command which needs DMA to be enabled, this operation 9801 * has to be moved to the io resume phase. Taking device offline 9802 * will perform the necessary cleanup. 9803 */ 9804 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9805 /* Perform device reset */ 9806 lpfc_offline_prep(phba); 9807 lpfc_offline(phba); 9808 lpfc_sli_brdrestart(phba); 9809 /* Bring the device back online */ 9810 lpfc_online(phba); 9811 } 9812 9813 /* Clean up Advanced Error Reporting (AER) if needed */ 9814 if (phba->hba_flag & HBA_AER_ENABLED) 9815 pci_cleanup_aer_uncorrect_error_status(pdev); 9816} 9817 9818/** 9819 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9820 * @pdev: pointer to PCI device 9821 * @pid: pointer to PCI device identifier 9822 * 9823 * This routine is to be registered to the kernel's PCI subsystem. When an 9824 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9825 * at PCI device-specific information of the device and driver to see if the 9826 * driver state that it can support this kind of device. If the match is 9827 * successful, the driver core invokes this routine. This routine dispatches 9828 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9829 * do all the initialization that it needs to do to handle the HBA device 9830 * properly. 9831 * 9832 * Return code 9833 * 0 - driver can claim the device 9834 * negative value - driver can not claim the device 9835 **/ 9836static int __devinit 9837lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9838{ 9839 int rc; 9840 struct lpfc_sli_intf intf; 9841 9842 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9843 return -ENODEV; 9844 9845 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9846 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9847 rc = lpfc_pci_probe_one_s4(pdev, pid); 9848 else 9849 rc = lpfc_pci_probe_one_s3(pdev, pid); 9850 9851 return rc; 9852} 9853 9854/** 9855 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9856 * @pdev: pointer to PCI device 9857 * 9858 * This routine is to be registered to the kernel's PCI subsystem. When an 9859 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9860 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9861 * remove routine, which will perform all the necessary cleanup for the 9862 * device to be removed from the PCI subsystem properly. 9863 **/ 9864static void __devexit 9865lpfc_pci_remove_one(struct pci_dev *pdev) 9866{ 9867 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9868 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9869 9870 switch (phba->pci_dev_grp) { 9871 case LPFC_PCI_DEV_LP: 9872 lpfc_pci_remove_one_s3(pdev); 9873 break; 9874 case LPFC_PCI_DEV_OC: 9875 lpfc_pci_remove_one_s4(pdev); 9876 break; 9877 default: 9878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9879 "1424 Invalid PCI device group: 0x%x\n", 9880 phba->pci_dev_grp); 9881 break; 9882 } 9883 return; 9884} 9885 9886/** 9887 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9888 * @pdev: pointer to PCI device 9889 * @msg: power management message 9890 * 9891 * This routine is to be registered to the kernel's PCI subsystem to support 9892 * system Power Management (PM). When PM invokes this method, it dispatches 9893 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9894 * suspend the device. 9895 * 9896 * Return code 9897 * 0 - driver suspended the device 9898 * Error otherwise 9899 **/ 9900static int 9901lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9902{ 9903 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9904 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9905 int rc = -ENODEV; 9906 9907 switch (phba->pci_dev_grp) { 9908 case LPFC_PCI_DEV_LP: 9909 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9910 break; 9911 case LPFC_PCI_DEV_OC: 9912 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9913 break; 9914 default: 9915 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9916 "1425 Invalid PCI device group: 0x%x\n", 9917 phba->pci_dev_grp); 9918 break; 9919 } 9920 return rc; 9921} 9922 9923/** 9924 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9925 * @pdev: pointer to PCI device 9926 * 9927 * This routine is to be registered to the kernel's PCI subsystem to support 9928 * system Power Management (PM). When PM invokes this method, it dispatches 9929 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9930 * resume the device. 9931 * 9932 * Return code 9933 * 0 - driver suspended the device 9934 * Error otherwise 9935 **/ 9936static int 9937lpfc_pci_resume_one(struct pci_dev *pdev) 9938{ 9939 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9940 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9941 int rc = -ENODEV; 9942 9943 switch (phba->pci_dev_grp) { 9944 case LPFC_PCI_DEV_LP: 9945 rc = lpfc_pci_resume_one_s3(pdev); 9946 break; 9947 case LPFC_PCI_DEV_OC: 9948 rc = lpfc_pci_resume_one_s4(pdev); 9949 break; 9950 default: 9951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9952 "1426 Invalid PCI device group: 0x%x\n", 9953 phba->pci_dev_grp); 9954 break; 9955 } 9956 return rc; 9957} 9958 9959/** 9960 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9961 * @pdev: pointer to PCI device. 9962 * @state: the current PCI connection state. 9963 * 9964 * This routine is registered to the PCI subsystem for error handling. This 9965 * function is called by the PCI subsystem after a PCI bus error affecting 9966 * this device has been detected. When this routine is invoked, it dispatches 9967 * the action to the proper SLI-3 or SLI-4 device error detected handling 9968 * routine, which will perform the proper error detected operation. 9969 * 9970 * Return codes 9971 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9972 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9973 **/ 9974static pci_ers_result_t 9975lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9976{ 9977 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9978 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9979 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9980 9981 switch (phba->pci_dev_grp) { 9982 case LPFC_PCI_DEV_LP: 9983 rc = lpfc_io_error_detected_s3(pdev, state); 9984 break; 9985 case LPFC_PCI_DEV_OC: 9986 rc = lpfc_io_error_detected_s4(pdev, state); 9987 break; 9988 default: 9989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9990 "1427 Invalid PCI device group: 0x%x\n", 9991 phba->pci_dev_grp); 9992 break; 9993 } 9994 return rc; 9995} 9996 9997/** 9998 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9999 * @pdev: pointer to PCI device. 10000 * 10001 * This routine is registered to the PCI subsystem for error handling. This 10002 * function is called after PCI bus has been reset to restart the PCI card 10003 * from scratch, as if from a cold-boot. When this routine is invoked, it 10004 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10005 * routine, which will perform the proper device reset. 10006 * 10007 * Return codes 10008 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10009 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10010 **/ 10011static pci_ers_result_t 10012lpfc_io_slot_reset(struct pci_dev *pdev) 10013{ 10014 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10015 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10016 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10017 10018 switch (phba->pci_dev_grp) { 10019 case LPFC_PCI_DEV_LP: 10020 rc = lpfc_io_slot_reset_s3(pdev); 10021 break; 10022 case LPFC_PCI_DEV_OC: 10023 rc = lpfc_io_slot_reset_s4(pdev); 10024 break; 10025 default: 10026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10027 "1428 Invalid PCI device group: 0x%x\n", 10028 phba->pci_dev_grp); 10029 break; 10030 } 10031 return rc; 10032} 10033 10034/** 10035 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10036 * @pdev: pointer to PCI device 10037 * 10038 * This routine is registered to the PCI subsystem for error handling. It 10039 * is called when kernel error recovery tells the lpfc driver that it is 10040 * OK to resume normal PCI operation after PCI bus error recovery. When 10041 * this routine is invoked, it dispatches the action to the proper SLI-3 10042 * or SLI-4 device io_resume routine, which will resume the device operation. 10043 **/ 10044static void 10045lpfc_io_resume(struct pci_dev *pdev) 10046{ 10047 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10048 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10049 10050 switch (phba->pci_dev_grp) { 10051 case LPFC_PCI_DEV_LP: 10052 lpfc_io_resume_s3(pdev); 10053 break; 10054 case LPFC_PCI_DEV_OC: 10055 lpfc_io_resume_s4(pdev); 10056 break; 10057 default: 10058 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10059 "1429 Invalid PCI device group: 0x%x\n", 10060 phba->pci_dev_grp); 10061 break; 10062 } 10063 return; 10064} 10065 10066/** 10067 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10068 * @inode: pointer to the inode representing the lpfcmgmt device 10069 * @filep: pointer to the file representing the open lpfcmgmt device 10070 * 10071 * This routine puts a reference count on the lpfc module whenever the 10072 * character device is opened 10073 **/ 10074static int 10075lpfc_mgmt_open(struct inode *inode, struct file *filep) 10076{ 10077 try_module_get(THIS_MODULE); 10078 return 0; 10079} 10080 10081/** 10082 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10083 * @inode: pointer to the inode representing the lpfcmgmt device 10084 * @filep: pointer to the file representing the open lpfcmgmt device 10085 * 10086 * This routine removes a reference count from the lpfc module when the 10087 * character device is closed 10088 **/ 10089static int 10090lpfc_mgmt_release(struct inode *inode, struct file *filep) 10091{ 10092 module_put(THIS_MODULE); 10093 return 0; 10094} 10095 10096static struct pci_device_id lpfc_id_table[] = { 10097 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10098 PCI_ANY_ID, PCI_ANY_ID, }, 10099 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10100 PCI_ANY_ID, PCI_ANY_ID, }, 10101 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10102 PCI_ANY_ID, PCI_ANY_ID, }, 10103 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10104 PCI_ANY_ID, PCI_ANY_ID, }, 10105 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10106 PCI_ANY_ID, PCI_ANY_ID, }, 10107 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10108 PCI_ANY_ID, PCI_ANY_ID, }, 10109 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10110 PCI_ANY_ID, PCI_ANY_ID, }, 10111 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10112 PCI_ANY_ID, PCI_ANY_ID, }, 10113 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10114 PCI_ANY_ID, PCI_ANY_ID, }, 10115 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10116 PCI_ANY_ID, PCI_ANY_ID, }, 10117 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10118 PCI_ANY_ID, PCI_ANY_ID, }, 10119 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10120 PCI_ANY_ID, PCI_ANY_ID, }, 10121 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10122 PCI_ANY_ID, PCI_ANY_ID, }, 10123 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10124 PCI_ANY_ID, PCI_ANY_ID, }, 10125 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10126 PCI_ANY_ID, PCI_ANY_ID, }, 10127 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10128 PCI_ANY_ID, PCI_ANY_ID, }, 10129 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10130 PCI_ANY_ID, PCI_ANY_ID, }, 10131 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10132 PCI_ANY_ID, PCI_ANY_ID, }, 10133 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10134 PCI_ANY_ID, PCI_ANY_ID, }, 10135 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10136 PCI_ANY_ID, PCI_ANY_ID, }, 10137 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10138 PCI_ANY_ID, PCI_ANY_ID, }, 10139 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10140 PCI_ANY_ID, PCI_ANY_ID, }, 10141 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10142 PCI_ANY_ID, PCI_ANY_ID, }, 10143 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10144 PCI_ANY_ID, PCI_ANY_ID, }, 10145 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10146 PCI_ANY_ID, PCI_ANY_ID, }, 10147 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10148 PCI_ANY_ID, PCI_ANY_ID, }, 10149 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10150 PCI_ANY_ID, PCI_ANY_ID, }, 10151 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10152 PCI_ANY_ID, PCI_ANY_ID, }, 10153 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10154 PCI_ANY_ID, PCI_ANY_ID, }, 10155 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10156 PCI_ANY_ID, PCI_ANY_ID, }, 10157 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10158 PCI_ANY_ID, PCI_ANY_ID, }, 10159 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10160 PCI_ANY_ID, PCI_ANY_ID, }, 10161 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10162 PCI_ANY_ID, PCI_ANY_ID, }, 10163 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10164 PCI_ANY_ID, PCI_ANY_ID, }, 10165 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10166 PCI_ANY_ID, PCI_ANY_ID, }, 10167 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10168 PCI_ANY_ID, PCI_ANY_ID, }, 10169 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10170 PCI_ANY_ID, PCI_ANY_ID, }, 10171 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10172 PCI_ANY_ID, PCI_ANY_ID, }, 10173 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10174 PCI_ANY_ID, PCI_ANY_ID, }, 10175 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10176 PCI_ANY_ID, PCI_ANY_ID, }, 10177 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10178 PCI_ANY_ID, PCI_ANY_ID, }, 10179 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10180 PCI_ANY_ID, PCI_ANY_ID, }, 10181 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10182 PCI_ANY_ID, PCI_ANY_ID, }, 10183 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10184 PCI_ANY_ID, PCI_ANY_ID, }, 10185 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10186 PCI_ANY_ID, PCI_ANY_ID, }, 10187 { 0 } 10188}; 10189 10190MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10191 10192static struct pci_error_handlers lpfc_err_handler = { 10193 .error_detected = lpfc_io_error_detected, 10194 .slot_reset = lpfc_io_slot_reset, 10195 .resume = lpfc_io_resume, 10196}; 10197 10198static struct pci_driver lpfc_driver = { 10199 .name = LPFC_DRIVER_NAME, 10200 .id_table = lpfc_id_table, 10201 .probe = lpfc_pci_probe_one, 10202 .remove = __devexit_p(lpfc_pci_remove_one), 10203 .suspend = lpfc_pci_suspend_one, 10204 .resume = lpfc_pci_resume_one, 10205 .err_handler = &lpfc_err_handler, 10206}; 10207 10208static const struct file_operations lpfc_mgmt_fop = { 10209 .open = lpfc_mgmt_open, 10210 .release = lpfc_mgmt_release, 10211}; 10212 10213static struct miscdevice lpfc_mgmt_dev = { 10214 .minor = MISC_DYNAMIC_MINOR, 10215 .name = "lpfcmgmt", 10216 .fops = &lpfc_mgmt_fop, 10217}; 10218 10219/** 10220 * lpfc_init - lpfc module initialization routine 10221 * 10222 * This routine is to be invoked when the lpfc module is loaded into the 10223 * kernel. The special kernel macro module_init() is used to indicate the 10224 * role of this routine to the kernel as lpfc module entry point. 10225 * 10226 * Return codes 10227 * 0 - successful 10228 * -ENOMEM - FC attach transport failed 10229 * all others - failed 10230 */ 10231static int __init 10232lpfc_init(void) 10233{ 10234 int error = 0; 10235 10236 printk(LPFC_MODULE_DESC "\n"); 10237 printk(LPFC_COPYRIGHT "\n"); 10238 10239 error = misc_register(&lpfc_mgmt_dev); 10240 if (error) 10241 printk(KERN_ERR "Could not register lpfcmgmt device, " 10242 "misc_register returned with status %d", error); 10243 10244 if (lpfc_enable_npiv) { 10245 lpfc_transport_functions.vport_create = lpfc_vport_create; 10246 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10247 } 10248 lpfc_transport_template = 10249 fc_attach_transport(&lpfc_transport_functions); 10250 if (lpfc_transport_template == NULL) 10251 return -ENOMEM; 10252 if (lpfc_enable_npiv) { 10253 lpfc_vport_transport_template = 10254 fc_attach_transport(&lpfc_vport_transport_functions); 10255 if (lpfc_vport_transport_template == NULL) { 10256 fc_release_transport(lpfc_transport_template); 10257 return -ENOMEM; 10258 } 10259 } 10260 error = pci_register_driver(&lpfc_driver); 10261 if (error) { 10262 fc_release_transport(lpfc_transport_template); 10263 if (lpfc_enable_npiv) 10264 fc_release_transport(lpfc_vport_transport_template); 10265 } 10266 10267 return error; 10268} 10269 10270/** 10271 * lpfc_exit - lpfc module removal routine 10272 * 10273 * This routine is invoked when the lpfc module is removed from the kernel. 10274 * The special kernel macro module_exit() is used to indicate the role of 10275 * this routine to the kernel as lpfc module exit point. 10276 */ 10277static void __exit 10278lpfc_exit(void) 10279{ 10280 misc_deregister(&lpfc_mgmt_dev); 10281 pci_unregister_driver(&lpfc_driver); 10282 fc_release_transport(lpfc_transport_template); 10283 if (lpfc_enable_npiv) 10284 fc_release_transport(lpfc_vport_transport_template); 10285 if (_dump_buf_data) { 10286 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10287 "_dump_buf_data at 0x%p\n", 10288 (1L << _dump_buf_data_order), _dump_buf_data); 10289 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10290 } 10291 10292 if (_dump_buf_dif) { 10293 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10294 "_dump_buf_dif at 0x%p\n", 10295 (1L << _dump_buf_dif_order), _dump_buf_dif); 10296 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10297 } 10298} 10299 10300module_init(lpfc_init); 10301module_exit(lpfc_exit); 10302MODULE_LICENSE("GPL"); 10303MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10304MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10305MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10306