1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2010 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/kthread.h> 28 #include <linux/pci.h> 29 #include <linux/spinlock.h> 30 #include <linux/ctype.h> 31 #include <linux/aer.h> 32 #include <linux/slab.h> 33 34 #include <scsi/scsi.h> 35 #include <scsi/scsi_device.h> 36 #include <scsi/scsi_host.h> 37 #include <scsi/scsi_transport_fc.h> 38 39 #include "lpfc_hw4.h" 40 #include "lpfc_hw.h" 41 #include "lpfc_sli.h" 42 #include "lpfc_sli4.h" 43 #include "lpfc_nl.h" 44 #include "lpfc_disc.h" 45 #include "lpfc_scsi.h" 46 #include "lpfc.h" 47 #include "lpfc_logmsg.h" 48 #include "lpfc_crtn.h" 49 #include "lpfc_vport.h" 50 #include "lpfc_version.h" 51 52 char *_dump_buf_data; 53 unsigned long _dump_buf_data_order; 54 char *_dump_buf_dif; 55 unsigned long _dump_buf_dif_order; 56 spinlock_t _dump_buf_lock; 57 58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 59 static int lpfc_post_rcv_buf(struct lpfc_hba *); 60 static int lpfc_sli4_queue_create(struct lpfc_hba *); 61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63 static int lpfc_setup_endian_order(struct lpfc_hba *); 64 static int lpfc_sli4_read_config(struct lpfc_hba *); 65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66 static void lpfc_free_sgl_list(struct lpfc_hba *); 67 static int lpfc_init_sgl_list(struct lpfc_hba *); 68 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69 static void lpfc_free_active_sgl(struct lpfc_hba *); 70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76 static struct scsi_transport_template *lpfc_transport_template = NULL; 77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78 static DEFINE_IDR(lpfc_hba_index); 79 80 /** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94 int 95 lpfc_config_port_prep(struct lpfc_hba *phba) 96 { 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 215 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); 241 out_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 **/ 256 static void 257 lpfc_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 **/ 277 static void 278 lpfc_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_config_port_post - Perform lpfc initialization after config port 313 * @phba: pointer to lpfc hba data structure. 314 * 315 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 316 * command call. It performs all internal resource and state setups on the 317 * port: post IOCB buffers, enable appropriate host interrupt attentions, 318 * ELS ring timers, etc. 319 * 320 * Return codes 321 * 0 - success. 322 * Any other value - error. 323 **/ 324 int 325 lpfc_config_port_post(struct lpfc_hba *phba) 326 { 327 struct lpfc_vport *vport = phba->pport; 328 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 329 LPFC_MBOXQ_t *pmb; 330 MAILBOX_t *mb; 331 struct lpfc_dmabuf *mp; 332 struct lpfc_sli *psli = &phba->sli; 333 uint32_t status, timeout; 334 int i, j; 335 int rc; 336 337 spin_lock_irq(&phba->hbalock); 338 /* 339 * If the Config port completed correctly the HBA is not 340 * over heated any more. 341 */ 342 if (phba->over_temp_state == HBA_OVER_TEMP) 343 phba->over_temp_state = HBA_NORMAL_TEMP; 344 spin_unlock_irq(&phba->hbalock); 345 346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 347 if (!pmb) { 348 phba->link_state = LPFC_HBA_ERROR; 349 return -ENOMEM; 350 } 351 mb = &pmb->u.mb; 352 353 /* Get login parameters for NID. */ 354 rc = lpfc_read_sparam(phba, pmb, 0); 355 if (rc) { 356 mempool_free(pmb, phba->mbox_mem_pool); 357 return -ENOMEM; 358 } 359 360 pmb->vport = vport; 361 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 363 "0448 Adapter failed init, mbxCmd x%x " 364 "READ_SPARM mbxStatus x%x\n", 365 mb->mbxCommand, mb->mbxStatus); 366 phba->link_state = LPFC_HBA_ERROR; 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 mempool_free(pmb, phba->mbox_mem_pool); 369 lpfc_mbuf_free(phba, mp->virt, mp->phys); 370 kfree(mp); 371 return -EIO; 372 } 373 374 mp = (struct lpfc_dmabuf *) pmb->context1; 375 376 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 377 lpfc_mbuf_free(phba, mp->virt, mp->phys); 378 kfree(mp); 379 pmb->context1 = NULL; 380 381 if (phba->cfg_soft_wwnn) 382 u64_to_wwn(phba->cfg_soft_wwnn, 383 vport->fc_sparam.nodeName.u.wwn); 384 if (phba->cfg_soft_wwpn) 385 u64_to_wwn(phba->cfg_soft_wwpn, 386 vport->fc_sparam.portName.u.wwn); 387 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 388 sizeof (struct lpfc_name)); 389 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 390 sizeof (struct lpfc_name)); 391 392 /* Update the fc_host data structures with new wwn. */ 393 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 394 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 395 fc_host_max_npiv_vports(shost) = phba->max_vpi; 396 397 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 398 /* This should be consolidated into parse_vpd ? - mr */ 399 if (phba->SerialNumber[0] == 0) { 400 uint8_t *outptr; 401 402 outptr = &vport->fc_nodename.u.s.IEEE[0]; 403 for (i = 0; i < 12; i++) { 404 status = *outptr++; 405 j = ((status & 0xf0) >> 4); 406 if (j <= 9) 407 phba->SerialNumber[i] = 408 (char)((uint8_t) 0x30 + (uint8_t) j); 409 else 410 phba->SerialNumber[i] = 411 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 412 i++; 413 j = (status & 0xf); 414 if (j <= 9) 415 phba->SerialNumber[i] = 416 (char)((uint8_t) 0x30 + (uint8_t) j); 417 else 418 phba->SerialNumber[i] = 419 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 420 } 421 } 422 423 lpfc_read_config(phba, pmb); 424 pmb->vport = vport; 425 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 427 "0453 Adapter failed to init, mbxCmd x%x " 428 "READ_CONFIG, mbxStatus x%x\n", 429 mb->mbxCommand, mb->mbxStatus); 430 phba->link_state = LPFC_HBA_ERROR; 431 mempool_free( pmb, phba->mbox_mem_pool); 432 return -EIO; 433 } 434 435 /* Check if the port is disabled */ 436 lpfc_sli_read_link_ste(phba); 437 438 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 439 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 440 phba->cfg_hba_queue_depth = 441 (mb->un.varRdConfig.max_xri + 1) - 442 lpfc_sli4_get_els_iocb_cnt(phba); 443 444 phba->lmt = mb->un.varRdConfig.lmt; 445 446 /* Get the default values for Model Name and Description */ 447 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 448 449 if ((phba->cfg_link_speed > LINK_SPEED_10G) 450 || ((phba->cfg_link_speed == LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb))) { 460 /* Reset link speed to auto */ 461 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 462 "1302 Invalid speed for this board: " 463 "Reset link speed to auto: x%x\n", 464 phba->cfg_link_speed); 465 phba->cfg_link_speed = LINK_SPEED_AUTO; 466 } 467 468 phba->link_state = LPFC_LINK_DOWN; 469 470 /* Only process IOCBs on ELS ring till hba_state is READY */ 471 if (psli->ring[psli->extra_ring].cmdringaddr) 472 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 473 if (psli->ring[psli->fcp_ring].cmdringaddr) 474 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->next_ring].cmdringaddr) 476 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 478 /* Post receive buffers for desired rings */ 479 if (phba->sli_rev != 3) 480 lpfc_post_rcv_buf(phba); 481 482 /* 483 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 484 */ 485 if (phba->intr_type == MSIX) { 486 rc = lpfc_config_msi(phba, pmb); 487 if (rc) { 488 mempool_free(pmb, phba->mbox_mem_pool); 489 return -EIO; 490 } 491 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 492 if (rc != MBX_SUCCESS) { 493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 494 "0352 Config MSI mailbox command " 495 "failed, mbxCmd x%x, mbxStatus x%x\n", 496 pmb->u.mb.mbxCommand, 497 pmb->u.mb.mbxStatus); 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 } 502 503 spin_lock_irq(&phba->hbalock); 504 /* Initialize ERATT handling flag */ 505 phba->hba_flag &= ~HBA_ERATT_HANDLED; 506 507 /* Enable appropriate host interrupts */ 508 status = readl(phba->HCregaddr); 509 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 510 if (psli->num_rings > 0) 511 status |= HC_R0INT_ENA; 512 if (psli->num_rings > 1) 513 status |= HC_R1INT_ENA; 514 if (psli->num_rings > 2) 515 status |= HC_R2INT_ENA; 516 if (psli->num_rings > 3) 517 status |= HC_R3INT_ENA; 518 519 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 520 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 521 status &= ~(HC_R0INT_ENA); 522 523 writel(status, phba->HCregaddr); 524 readl(phba->HCregaddr); /* flush */ 525 spin_unlock_irq(&phba->hbalock); 526 527 /* Set up ring-0 (ELS) timer */ 528 timeout = phba->fc_ratov * 2; 529 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 530 /* Set up heart beat (HB) timer */ 531 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 532 phba->hb_outstanding = 0; 533 phba->last_completion_time = jiffies; 534 /* Set up error attention (ERATT) polling timer */ 535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 536 537 if (phba->hba_flag & LINK_DISABLED) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2598 Adapter Link is disabled.\n"); 541 lpfc_down_link(phba, pmb); 542 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 543 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 544 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 545 lpfc_printf_log(phba, 546 KERN_ERR, LOG_INIT, 547 "2599 Adapter failed to issue DOWN_LINK" 548 " mbox command rc 0x%x\n", rc); 549 550 mempool_free(pmb, phba->mbox_mem_pool); 551 return -EIO; 552 } 553 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 554 lpfc_init_link(phba, pmb, phba->cfg_topology, 555 phba->cfg_link_speed); 556 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 557 lpfc_set_loopback_flag(phba); 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if (rc != MBX_SUCCESS) { 560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 561 "0454 Adapter failed to init, mbxCmd x%x " 562 "INIT_LINK, mbxStatus x%x\n", 563 mb->mbxCommand, mb->mbxStatus); 564 565 /* Clear all interrupt enable conditions */ 566 writel(0, phba->HCregaddr); 567 readl(phba->HCregaddr); /* flush */ 568 /* Clear all pending interrupts */ 569 writel(0xffffffff, phba->HAregaddr); 570 readl(phba->HAregaddr); /* flush */ 571 572 phba->link_state = LPFC_HBA_ERROR; 573 if (rc != MBX_BUSY) 574 mempool_free(pmb, phba->mbox_mem_pool); 575 return -EIO; 576 } 577 } 578 /* MBOX buffer will be freed in mbox compl */ 579 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 580 if (!pmb) { 581 phba->link_state = LPFC_HBA_ERROR; 582 return -ENOMEM; 583 } 584 585 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 586 pmb->mbox_cmpl = lpfc_config_async_cmpl; 587 pmb->vport = phba->pport; 588 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 589 590 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 591 lpfc_printf_log(phba, 592 KERN_ERR, 593 LOG_INIT, 594 "0456 Adapter failed to issue " 595 "ASYNCEVT_ENABLE mbox status x%x\n", 596 rc); 597 mempool_free(pmb, phba->mbox_mem_pool); 598 } 599 600 /* Get Option rom version */ 601 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 602 if (!pmb) { 603 phba->link_state = LPFC_HBA_ERROR; 604 return -ENOMEM; 605 } 606 607 lpfc_dump_wakeup_param(phba, pmb); 608 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 609 pmb->vport = phba->pport; 610 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 611 612 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 614 "to get Option ROM version status x%x\n", rc); 615 mempool_free(pmb, phba->mbox_mem_pool); 616 } 617 618 return 0; 619 } 620 621 /** 622 * lpfc_hba_init_link - Initialize the FC link 623 * @phba: pointer to lpfc hba data structure. 624 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 625 * 626 * This routine will issue the INIT_LINK mailbox command call. 627 * It is available to other drivers through the lpfc_hba data 628 * structure for use as a delayed link up mechanism with the 629 * module parameter lpfc_suppress_link_up. 630 * 631 * Return code 632 * 0 - success 633 * Any other value - error 634 **/ 635 int 636 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 637 { 638 struct lpfc_vport *vport = phba->pport; 639 LPFC_MBOXQ_t *pmb; 640 MAILBOX_t *mb; 641 int rc; 642 643 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 644 if (!pmb) { 645 phba->link_state = LPFC_HBA_ERROR; 646 return -ENOMEM; 647 } 648 mb = &pmb->u.mb; 649 pmb->vport = vport; 650 651 lpfc_init_link(phba, pmb, phba->cfg_topology, 652 phba->cfg_link_speed); 653 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 654 lpfc_set_loopback_flag(phba); 655 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 656 if (rc != MBX_SUCCESS) { 657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 658 "0498 Adapter failed to init, mbxCmd x%x " 659 "INIT_LINK, mbxStatus x%x\n", 660 mb->mbxCommand, mb->mbxStatus); 661 /* Clear all interrupt enable conditions */ 662 writel(0, phba->HCregaddr); 663 readl(phba->HCregaddr); /* flush */ 664 /* Clear all pending interrupts */ 665 writel(0xffffffff, phba->HAregaddr); 666 readl(phba->HAregaddr); /* flush */ 667 phba->link_state = LPFC_HBA_ERROR; 668 if (rc != MBX_BUSY || flag == MBX_POLL) 669 mempool_free(pmb, phba->mbox_mem_pool); 670 return -EIO; 671 } 672 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 673 if (flag == MBX_POLL) 674 mempool_free(pmb, phba->mbox_mem_pool); 675 676 return 0; 677 } 678 679 /** 680 * lpfc_hba_down_link - this routine downs the FC link 681 * @phba: pointer to lpfc hba data structure. 682 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 683 * 684 * This routine will issue the DOWN_LINK mailbox command call. 685 * It is available to other drivers through the lpfc_hba data 686 * structure for use to stop the link. 687 * 688 * Return code 689 * 0 - success 690 * Any other value - error 691 **/ 692 int 693 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 694 { 695 LPFC_MBOXQ_t *pmb; 696 int rc; 697 698 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 699 if (!pmb) { 700 phba->link_state = LPFC_HBA_ERROR; 701 return -ENOMEM; 702 } 703 704 lpfc_printf_log(phba, 705 KERN_ERR, LOG_INIT, 706 "0491 Adapter Link is disabled.\n"); 707 lpfc_down_link(phba, pmb); 708 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 709 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 710 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 711 lpfc_printf_log(phba, 712 KERN_ERR, LOG_INIT, 713 "2522 Adapter failed to issue DOWN_LINK" 714 " mbox command rc 0x%x\n", rc); 715 716 mempool_free(pmb, phba->mbox_mem_pool); 717 return -EIO; 718 } 719 if (flag == MBX_POLL) 720 mempool_free(pmb, phba->mbox_mem_pool); 721 722 return 0; 723 } 724 725 /** 726 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 727 * @phba: pointer to lpfc HBA data structure. 728 * 729 * This routine will do LPFC uninitialization before the HBA is reset when 730 * bringing down the SLI Layer. 731 * 732 * Return codes 733 * 0 - success. 734 * Any other value - error. 735 **/ 736 int 737 lpfc_hba_down_prep(struct lpfc_hba *phba) 738 { 739 struct lpfc_vport **vports; 740 int i; 741 742 if (phba->sli_rev <= LPFC_SLI_REV3) { 743 /* Disable interrupts */ 744 writel(0, phba->HCregaddr); 745 readl(phba->HCregaddr); /* flush */ 746 } 747 748 if (phba->pport->load_flag & FC_UNLOADING) 749 lpfc_cleanup_discovery_resources(phba->pport); 750 else { 751 vports = lpfc_create_vport_work_array(phba); 752 if (vports != NULL) 753 for (i = 0; i <= phba->max_vports && 754 vports[i] != NULL; i++) 755 lpfc_cleanup_discovery_resources(vports[i]); 756 lpfc_destroy_vport_work_array(phba, vports); 757 } 758 return 0; 759 } 760 761 /** 762 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 763 * @phba: pointer to lpfc HBA data structure. 764 * 765 * This routine will do uninitialization after the HBA is reset when bring 766 * down the SLI Layer. 767 * 768 * Return codes 769 * 0 - success. 770 * Any other value - error. 771 **/ 772 static int 773 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 774 { 775 struct lpfc_sli *psli = &phba->sli; 776 struct lpfc_sli_ring *pring; 777 struct lpfc_dmabuf *mp, *next_mp; 778 LIST_HEAD(completions); 779 int i; 780 781 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 782 lpfc_sli_hbqbuf_free_all(phba); 783 else { 784 /* Cleanup preposted buffers on the ELS ring */ 785 pring = &psli->ring[LPFC_ELS_RING]; 786 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 787 list_del(&mp->list); 788 pring->postbufq_cnt--; 789 lpfc_mbuf_free(phba, mp->virt, mp->phys); 790 kfree(mp); 791 } 792 } 793 794 spin_lock_irq(&phba->hbalock); 795 for (i = 0; i < psli->num_rings; i++) { 796 pring = &psli->ring[i]; 797 798 /* At this point in time the HBA is either reset or DOA. Either 799 * way, nothing should be on txcmplq as it will NEVER complete. 800 */ 801 list_splice_init(&pring->txcmplq, &completions); 802 pring->txcmplq_cnt = 0; 803 spin_unlock_irq(&phba->hbalock); 804 805 /* Cancel all the IOCBs from the completions list */ 806 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 807 IOERR_SLI_ABORTED); 808 809 lpfc_sli_abort_iocb_ring(phba, pring); 810 spin_lock_irq(&phba->hbalock); 811 } 812 spin_unlock_irq(&phba->hbalock); 813 814 return 0; 815 } 816 817 /** 818 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 819 * @phba: pointer to lpfc HBA data structure. 820 * 821 * This routine will do uninitialization after the HBA is reset when bring 822 * down the SLI Layer. 823 * 824 * Return codes 825 * 0 - success. 826 * Any other value - error. 827 **/ 828 static int 829 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 830 { 831 struct lpfc_scsi_buf *psb, *psb_next; 832 LIST_HEAD(aborts); 833 int ret; 834 unsigned long iflag = 0; 835 struct lpfc_sglq *sglq_entry = NULL; 836 837 ret = lpfc_hba_down_post_s3(phba); 838 if (ret) 839 return ret; 840 /* At this point in time the HBA is either reset or DOA. Either 841 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 842 * on the lpfc_sgl_list so that it can either be freed if the 843 * driver is unloading or reposted if the driver is restarting 844 * the port. 845 */ 846 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 847 /* scsl_buf_list */ 848 /* abts_sgl_list_lock required because worker thread uses this 849 * list. 850 */ 851 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 852 list_for_each_entry(sglq_entry, 853 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 854 sglq_entry->state = SGL_FREED; 855 856 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 857 &phba->sli4_hba.lpfc_sgl_list); 858 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 859 /* abts_scsi_buf_list_lock required because worker thread uses this 860 * list. 861 */ 862 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 863 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 864 &aborts); 865 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 866 spin_unlock_irq(&phba->hbalock); 867 868 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 869 psb->pCmd = NULL; 870 psb->status = IOSTAT_SUCCESS; 871 } 872 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 873 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 874 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 875 return 0; 876 } 877 878 /** 879 * lpfc_hba_down_post - Wrapper func for hba down post routine 880 * @phba: pointer to lpfc HBA data structure. 881 * 882 * This routine wraps the actual SLI3 or SLI4 routine for performing 883 * uninitialization after the HBA is reset when bring down the SLI Layer. 884 * 885 * Return codes 886 * 0 - success. 887 * Any other value - error. 888 **/ 889 int 890 lpfc_hba_down_post(struct lpfc_hba *phba) 891 { 892 return (*phba->lpfc_hba_down_post)(phba); 893 } 894 895 /** 896 * lpfc_hb_timeout - The HBA-timer timeout handler 897 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 898 * 899 * This is the HBA-timer timeout handler registered to the lpfc driver. When 900 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 901 * work-port-events bitmap and the worker thread is notified. This timeout 902 * event will be used by the worker thread to invoke the actual timeout 903 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 904 * be performed in the timeout handler and the HBA timeout event bit shall 905 * be cleared by the worker thread after it has taken the event bitmap out. 906 **/ 907 static void 908 lpfc_hb_timeout(unsigned long ptr) 909 { 910 struct lpfc_hba *phba; 911 uint32_t tmo_posted; 912 unsigned long iflag; 913 914 phba = (struct lpfc_hba *)ptr; 915 916 /* Check for heart beat timeout conditions */ 917 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 918 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 919 if (!tmo_posted) 920 phba->pport->work_port_events |= WORKER_HB_TMO; 921 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 922 923 /* Tell the worker thread there is work to do */ 924 if (!tmo_posted) 925 lpfc_worker_wake_up(phba); 926 return; 927 } 928 929 /** 930 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 931 * @phba: pointer to lpfc hba data structure. 932 * @pmboxq: pointer to the driver internal queue element for mailbox command. 933 * 934 * This is the callback function to the lpfc heart-beat mailbox command. 935 * If configured, the lpfc driver issues the heart-beat mailbox command to 936 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 937 * heart-beat mailbox command is issued, the driver shall set up heart-beat 938 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 939 * heart-beat outstanding state. Once the mailbox command comes back and 940 * no error conditions detected, the heart-beat mailbox command timer is 941 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 942 * state is cleared for the next heart-beat. If the timer expired with the 943 * heart-beat outstanding state set, the driver will put the HBA offline. 944 **/ 945 static void 946 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 947 { 948 unsigned long drvr_flag; 949 950 spin_lock_irqsave(&phba->hbalock, drvr_flag); 951 phba->hb_outstanding = 0; 952 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 953 954 /* Check and reset heart-beat timer is necessary */ 955 mempool_free(pmboxq, phba->mbox_mem_pool); 956 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 957 !(phba->link_state == LPFC_HBA_ERROR) && 958 !(phba->pport->load_flag & FC_UNLOADING)) 959 mod_timer(&phba->hb_tmofunc, 960 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 961 return; 962 } 963 964 /** 965 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 966 * @phba: pointer to lpfc hba data structure. 967 * 968 * This is the actual HBA-timer timeout handler to be invoked by the worker 969 * thread whenever the HBA timer fired and HBA-timeout event posted. This 970 * handler performs any periodic operations needed for the device. If such 971 * periodic event has already been attended to either in the interrupt handler 972 * or by processing slow-ring or fast-ring events within the HBA-timer 973 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 974 * the timer for the next timeout period. If lpfc heart-beat mailbox command 975 * is configured and there is no heart-beat mailbox command outstanding, a 976 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 977 * has been a heart-beat mailbox command outstanding, the HBA shall be put 978 * to offline. 979 **/ 980 void 981 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 982 { 983 struct lpfc_vport **vports; 984 LPFC_MBOXQ_t *pmboxq; 985 struct lpfc_dmabuf *buf_ptr; 986 int retval, i; 987 struct lpfc_sli *psli = &phba->sli; 988 LIST_HEAD(completions); 989 990 vports = lpfc_create_vport_work_array(phba); 991 if (vports != NULL) 992 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 993 lpfc_rcv_seq_check_edtov(vports[i]); 994 lpfc_destroy_vport_work_array(phba, vports); 995 996 if ((phba->link_state == LPFC_HBA_ERROR) || 997 (phba->pport->load_flag & FC_UNLOADING) || 998 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 999 return; 1000 1001 spin_lock_irq(&phba->pport->work_port_lock); 1002 1003 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1004 jiffies)) { 1005 spin_unlock_irq(&phba->pport->work_port_lock); 1006 if (!phba->hb_outstanding) 1007 mod_timer(&phba->hb_tmofunc, 1008 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1009 else 1010 mod_timer(&phba->hb_tmofunc, 1011 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1012 return; 1013 } 1014 spin_unlock_irq(&phba->pport->work_port_lock); 1015 1016 if (phba->elsbuf_cnt && 1017 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1018 spin_lock_irq(&phba->hbalock); 1019 list_splice_init(&phba->elsbuf, &completions); 1020 phba->elsbuf_cnt = 0; 1021 phba->elsbuf_prev_cnt = 0; 1022 spin_unlock_irq(&phba->hbalock); 1023 1024 while (!list_empty(&completions)) { 1025 list_remove_head(&completions, buf_ptr, 1026 struct lpfc_dmabuf, list); 1027 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1028 kfree(buf_ptr); 1029 } 1030 } 1031 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1032 1033 /* If there is no heart beat outstanding, issue a heartbeat command */ 1034 if (phba->cfg_enable_hba_heartbeat) { 1035 if (!phba->hb_outstanding) { 1036 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1037 (list_empty(&psli->mboxq))) { 1038 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1039 GFP_KERNEL); 1040 if (!pmboxq) { 1041 mod_timer(&phba->hb_tmofunc, 1042 jiffies + 1043 HZ * LPFC_HB_MBOX_INTERVAL); 1044 return; 1045 } 1046 1047 lpfc_heart_beat(phba, pmboxq); 1048 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1049 pmboxq->vport = phba->pport; 1050 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1051 MBX_NOWAIT); 1052 1053 if (retval != MBX_BUSY && 1054 retval != MBX_SUCCESS) { 1055 mempool_free(pmboxq, 1056 phba->mbox_mem_pool); 1057 mod_timer(&phba->hb_tmofunc, 1058 jiffies + 1059 HZ * LPFC_HB_MBOX_INTERVAL); 1060 return; 1061 } 1062 phba->skipped_hb = 0; 1063 phba->hb_outstanding = 1; 1064 } else if (time_before_eq(phba->last_completion_time, 1065 phba->skipped_hb)) { 1066 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1067 "2857 Last completion time not " 1068 " updated in %d ms\n", 1069 jiffies_to_msecs(jiffies 1070 - phba->last_completion_time)); 1071 } else 1072 phba->skipped_hb = jiffies; 1073 1074 mod_timer(&phba->hb_tmofunc, 1075 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1076 return; 1077 } else { 1078 /* 1079 * If heart beat timeout called with hb_outstanding set 1080 * we need to give the hb mailbox cmd a chance to 1081 * complete or TMO. 1082 */ 1083 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1084 "0459 Adapter heartbeat still out" 1085 "standing:last compl time was %d ms.\n", 1086 jiffies_to_msecs(jiffies 1087 - phba->last_completion_time)); 1088 mod_timer(&phba->hb_tmofunc, 1089 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1090 } 1091 } 1092 } 1093 1094 /** 1095 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1096 * @phba: pointer to lpfc hba data structure. 1097 * 1098 * This routine is called to bring the HBA offline when HBA hardware error 1099 * other than Port Error 6 has been detected. 1100 **/ 1101 static void 1102 lpfc_offline_eratt(struct lpfc_hba *phba) 1103 { 1104 struct lpfc_sli *psli = &phba->sli; 1105 1106 spin_lock_irq(&phba->hbalock); 1107 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1108 spin_unlock_irq(&phba->hbalock); 1109 lpfc_offline_prep(phba); 1110 1111 lpfc_offline(phba); 1112 lpfc_reset_barrier(phba); 1113 spin_lock_irq(&phba->hbalock); 1114 lpfc_sli_brdreset(phba); 1115 spin_unlock_irq(&phba->hbalock); 1116 lpfc_hba_down_post(phba); 1117 lpfc_sli_brdready(phba, HS_MBRDY); 1118 lpfc_unblock_mgmt_io(phba); 1119 phba->link_state = LPFC_HBA_ERROR; 1120 return; 1121 } 1122 1123 /** 1124 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1125 * @phba: pointer to lpfc hba data structure. 1126 * 1127 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1128 * other than Port Error 6 has been detected. 1129 **/ 1130 static void 1131 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1132 { 1133 lpfc_offline_prep(phba); 1134 lpfc_offline(phba); 1135 lpfc_sli4_brdreset(phba); 1136 lpfc_hba_down_post(phba); 1137 lpfc_sli4_post_status_check(phba); 1138 lpfc_unblock_mgmt_io(phba); 1139 phba->link_state = LPFC_HBA_ERROR; 1140 } 1141 1142 /** 1143 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1144 * @phba: pointer to lpfc hba data structure. 1145 * 1146 * This routine is invoked to handle the deferred HBA hardware error 1147 * conditions. This type of error is indicated by HBA by setting ER1 1148 * and another ER bit in the host status register. The driver will 1149 * wait until the ER1 bit clears before handling the error condition. 1150 **/ 1151 static void 1152 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1153 { 1154 uint32_t old_host_status = phba->work_hs; 1155 struct lpfc_sli_ring *pring; 1156 struct lpfc_sli *psli = &phba->sli; 1157 1158 /* If the pci channel is offline, ignore possible errors, 1159 * since we cannot communicate with the pci card anyway. 1160 */ 1161 if (pci_channel_offline(phba->pcidev)) { 1162 spin_lock_irq(&phba->hbalock); 1163 phba->hba_flag &= ~DEFER_ERATT; 1164 spin_unlock_irq(&phba->hbalock); 1165 return; 1166 } 1167 1168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1169 "0479 Deferred Adapter Hardware Error " 1170 "Data: x%x x%x x%x\n", 1171 phba->work_hs, 1172 phba->work_status[0], phba->work_status[1]); 1173 1174 spin_lock_irq(&phba->hbalock); 1175 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1176 spin_unlock_irq(&phba->hbalock); 1177 1178 1179 /* 1180 * Firmware stops when it triggred erratt. That could cause the I/Os 1181 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1182 * SCSI layer retry it after re-establishing link. 1183 */ 1184 pring = &psli->ring[psli->fcp_ring]; 1185 lpfc_sli_abort_iocb_ring(phba, pring); 1186 1187 /* 1188 * There was a firmware error. Take the hba offline and then 1189 * attempt to restart it. 1190 */ 1191 lpfc_offline_prep(phba); 1192 lpfc_offline(phba); 1193 1194 /* Wait for the ER1 bit to clear.*/ 1195 while (phba->work_hs & HS_FFER1) { 1196 msleep(100); 1197 phba->work_hs = readl(phba->HSregaddr); 1198 /* If driver is unloading let the worker thread continue */ 1199 if (phba->pport->load_flag & FC_UNLOADING) { 1200 phba->work_hs = 0; 1201 break; 1202 } 1203 } 1204 1205 /* 1206 * This is to ptrotect against a race condition in which 1207 * first write to the host attention register clear the 1208 * host status register. 1209 */ 1210 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1211 phba->work_hs = old_host_status & ~HS_FFER1; 1212 1213 spin_lock_irq(&phba->hbalock); 1214 phba->hba_flag &= ~DEFER_ERATT; 1215 spin_unlock_irq(&phba->hbalock); 1216 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1217 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1218 } 1219 1220 static void 1221 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1222 { 1223 struct lpfc_board_event_header board_event; 1224 struct Scsi_Host *shost; 1225 1226 board_event.event_type = FC_REG_BOARD_EVENT; 1227 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1228 shost = lpfc_shost_from_vport(phba->pport); 1229 fc_host_post_vendor_event(shost, fc_get_event_number(), 1230 sizeof(board_event), 1231 (char *) &board_event, 1232 LPFC_NL_VENDOR_ID); 1233 } 1234 1235 /** 1236 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1237 * @phba: pointer to lpfc hba data structure. 1238 * 1239 * This routine is invoked to handle the following HBA hardware error 1240 * conditions: 1241 * 1 - HBA error attention interrupt 1242 * 2 - DMA ring index out of range 1243 * 3 - Mailbox command came back as unknown 1244 **/ 1245 static void 1246 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1247 { 1248 struct lpfc_vport *vport = phba->pport; 1249 struct lpfc_sli *psli = &phba->sli; 1250 struct lpfc_sli_ring *pring; 1251 uint32_t event_data; 1252 unsigned long temperature; 1253 struct temp_event temp_event_data; 1254 struct Scsi_Host *shost; 1255 1256 /* If the pci channel is offline, ignore possible errors, 1257 * since we cannot communicate with the pci card anyway. 1258 */ 1259 if (pci_channel_offline(phba->pcidev)) { 1260 spin_lock_irq(&phba->hbalock); 1261 phba->hba_flag &= ~DEFER_ERATT; 1262 spin_unlock_irq(&phba->hbalock); 1263 return; 1264 } 1265 1266 /* If resets are disabled then leave the HBA alone and return */ 1267 if (!phba->cfg_enable_hba_reset) 1268 return; 1269 1270 /* Send an internal error event to mgmt application */ 1271 lpfc_board_errevt_to_mgmt(phba); 1272 1273 if (phba->hba_flag & DEFER_ERATT) 1274 lpfc_handle_deferred_eratt(phba); 1275 1276 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1277 if (phba->work_hs & HS_FFER6) 1278 /* Re-establishing Link */ 1279 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1280 "1301 Re-establishing Link " 1281 "Data: x%x x%x x%x\n", 1282 phba->work_hs, phba->work_status[0], 1283 phba->work_status[1]); 1284 if (phba->work_hs & HS_FFER8) 1285 /* Device Zeroization */ 1286 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1287 "2861 Host Authentication device " 1288 "zeroization Data:x%x x%x x%x\n", 1289 phba->work_hs, phba->work_status[0], 1290 phba->work_status[1]); 1291 1292 spin_lock_irq(&phba->hbalock); 1293 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1294 spin_unlock_irq(&phba->hbalock); 1295 1296 /* 1297 * Firmware stops when it triggled erratt with HS_FFER6. 1298 * That could cause the I/Os dropped by the firmware. 1299 * Error iocb (I/O) on txcmplq and let the SCSI layer 1300 * retry it after re-establishing link. 1301 */ 1302 pring = &psli->ring[psli->fcp_ring]; 1303 lpfc_sli_abort_iocb_ring(phba, pring); 1304 1305 /* 1306 * There was a firmware error. Take the hba offline and then 1307 * attempt to restart it. 1308 */ 1309 lpfc_offline_prep(phba); 1310 lpfc_offline(phba); 1311 lpfc_sli_brdrestart(phba); 1312 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1313 lpfc_unblock_mgmt_io(phba); 1314 return; 1315 } 1316 lpfc_unblock_mgmt_io(phba); 1317 } else if (phba->work_hs & HS_CRIT_TEMP) { 1318 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1319 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1320 temp_event_data.event_code = LPFC_CRIT_TEMP; 1321 temp_event_data.data = (uint32_t)temperature; 1322 1323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1324 "0406 Adapter maximum temperature exceeded " 1325 "(%ld), taking this port offline " 1326 "Data: x%x x%x x%x\n", 1327 temperature, phba->work_hs, 1328 phba->work_status[0], phba->work_status[1]); 1329 1330 shost = lpfc_shost_from_vport(phba->pport); 1331 fc_host_post_vendor_event(shost, fc_get_event_number(), 1332 sizeof(temp_event_data), 1333 (char *) &temp_event_data, 1334 SCSI_NL_VID_TYPE_PCI 1335 | PCI_VENDOR_ID_EMULEX); 1336 1337 spin_lock_irq(&phba->hbalock); 1338 phba->over_temp_state = HBA_OVER_TEMP; 1339 spin_unlock_irq(&phba->hbalock); 1340 lpfc_offline_eratt(phba); 1341 1342 } else { 1343 /* The if clause above forces this code path when the status 1344 * failure is a value other than FFER6. Do not call the offline 1345 * twice. This is the adapter hardware error path. 1346 */ 1347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1348 "0457 Adapter Hardware Error " 1349 "Data: x%x x%x x%x\n", 1350 phba->work_hs, 1351 phba->work_status[0], phba->work_status[1]); 1352 1353 event_data = FC_REG_DUMP_EVENT; 1354 shost = lpfc_shost_from_vport(vport); 1355 fc_host_post_vendor_event(shost, fc_get_event_number(), 1356 sizeof(event_data), (char *) &event_data, 1357 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1358 1359 lpfc_offline_eratt(phba); 1360 } 1361 return; 1362 } 1363 1364 /** 1365 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1366 * @phba: pointer to lpfc hba data structure. 1367 * 1368 * This routine is invoked to handle the SLI4 HBA hardware error attention 1369 * conditions. 1370 **/ 1371 static void 1372 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1373 { 1374 struct lpfc_vport *vport = phba->pport; 1375 uint32_t event_data; 1376 struct Scsi_Host *shost; 1377 1378 /* If the pci channel is offline, ignore possible errors, since 1379 * we cannot communicate with the pci card anyway. 1380 */ 1381 if (pci_channel_offline(phba->pcidev)) 1382 return; 1383 /* If resets are disabled then leave the HBA alone and return */ 1384 if (!phba->cfg_enable_hba_reset) 1385 return; 1386 1387 /* Send an internal error event to mgmt application */ 1388 lpfc_board_errevt_to_mgmt(phba); 1389 1390 /* For now, the actual action for SLI4 device handling is not 1391 * specified yet, just treated it as adaptor hardware failure 1392 */ 1393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1394 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1395 phba->work_status[0], phba->work_status[1]); 1396 1397 event_data = FC_REG_DUMP_EVENT; 1398 shost = lpfc_shost_from_vport(vport); 1399 fc_host_post_vendor_event(shost, fc_get_event_number(), 1400 sizeof(event_data), (char *) &event_data, 1401 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1402 1403 lpfc_sli4_offline_eratt(phba); 1404 } 1405 1406 /** 1407 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1408 * @phba: pointer to lpfc HBA data structure. 1409 * 1410 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1411 * routine from the API jump table function pointer from the lpfc_hba struct. 1412 * 1413 * Return codes 1414 * 0 - success. 1415 * Any other value - error. 1416 **/ 1417 void 1418 lpfc_handle_eratt(struct lpfc_hba *phba) 1419 { 1420 (*phba->lpfc_handle_eratt)(phba); 1421 } 1422 1423 /** 1424 * lpfc_handle_latt - The HBA link event handler 1425 * @phba: pointer to lpfc hba data structure. 1426 * 1427 * This routine is invoked from the worker thread to handle a HBA host 1428 * attention link event. 1429 **/ 1430 void 1431 lpfc_handle_latt(struct lpfc_hba *phba) 1432 { 1433 struct lpfc_vport *vport = phba->pport; 1434 struct lpfc_sli *psli = &phba->sli; 1435 LPFC_MBOXQ_t *pmb; 1436 volatile uint32_t control; 1437 struct lpfc_dmabuf *mp; 1438 int rc = 0; 1439 1440 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1441 if (!pmb) { 1442 rc = 1; 1443 goto lpfc_handle_latt_err_exit; 1444 } 1445 1446 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1447 if (!mp) { 1448 rc = 2; 1449 goto lpfc_handle_latt_free_pmb; 1450 } 1451 1452 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1453 if (!mp->virt) { 1454 rc = 3; 1455 goto lpfc_handle_latt_free_mp; 1456 } 1457 1458 /* Cleanup any outstanding ELS commands */ 1459 lpfc_els_flush_all_cmd(phba); 1460 1461 psli->slistat.link_event++; 1462 lpfc_read_la(phba, pmb, mp); 1463 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1464 pmb->vport = vport; 1465 /* Block ELS IOCBs until we have processed this mbox command */ 1466 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1467 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1468 if (rc == MBX_NOT_FINISHED) { 1469 rc = 4; 1470 goto lpfc_handle_latt_free_mbuf; 1471 } 1472 1473 /* Clear Link Attention in HA REG */ 1474 spin_lock_irq(&phba->hbalock); 1475 writel(HA_LATT, phba->HAregaddr); 1476 readl(phba->HAregaddr); /* flush */ 1477 spin_unlock_irq(&phba->hbalock); 1478 1479 return; 1480 1481 lpfc_handle_latt_free_mbuf: 1482 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1483 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1484 lpfc_handle_latt_free_mp: 1485 kfree(mp); 1486 lpfc_handle_latt_free_pmb: 1487 mempool_free(pmb, phba->mbox_mem_pool); 1488 lpfc_handle_latt_err_exit: 1489 /* Enable Link attention interrupts */ 1490 spin_lock_irq(&phba->hbalock); 1491 psli->sli_flag |= LPFC_PROCESS_LA; 1492 control = readl(phba->HCregaddr); 1493 control |= HC_LAINT_ENA; 1494 writel(control, phba->HCregaddr); 1495 readl(phba->HCregaddr); /* flush */ 1496 1497 /* Clear Link Attention in HA REG */ 1498 writel(HA_LATT, phba->HAregaddr); 1499 readl(phba->HAregaddr); /* flush */ 1500 spin_unlock_irq(&phba->hbalock); 1501 lpfc_linkdown(phba); 1502 phba->link_state = LPFC_HBA_ERROR; 1503 1504 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1505 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1506 1507 return; 1508 } 1509 1510 /** 1511 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1512 * @phba: pointer to lpfc hba data structure. 1513 * @vpd: pointer to the vital product data. 1514 * @len: length of the vital product data in bytes. 1515 * 1516 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1517 * an array of characters. In this routine, the ModelName, ProgramType, and 1518 * ModelDesc, etc. fields of the phba data structure will be populated. 1519 * 1520 * Return codes 1521 * 0 - pointer to the VPD passed in is NULL 1522 * 1 - success 1523 **/ 1524 int 1525 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1526 { 1527 uint8_t lenlo, lenhi; 1528 int Length; 1529 int i, j; 1530 int finished = 0; 1531 int index = 0; 1532 1533 if (!vpd) 1534 return 0; 1535 1536 /* Vital Product */ 1537 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1538 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1539 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1540 (uint32_t) vpd[3]); 1541 while (!finished && (index < (len - 4))) { 1542 switch (vpd[index]) { 1543 case 0x82: 1544 case 0x91: 1545 index += 1; 1546 lenlo = vpd[index]; 1547 index += 1; 1548 lenhi = vpd[index]; 1549 index += 1; 1550 i = ((((unsigned short)lenhi) << 8) + lenlo); 1551 index += i; 1552 break; 1553 case 0x90: 1554 index += 1; 1555 lenlo = vpd[index]; 1556 index += 1; 1557 lenhi = vpd[index]; 1558 index += 1; 1559 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1560 if (Length > len - index) 1561 Length = len - index; 1562 while (Length > 0) { 1563 /* Look for Serial Number */ 1564 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1565 index += 2; 1566 i = vpd[index]; 1567 index += 1; 1568 j = 0; 1569 Length -= (3+i); 1570 while(i--) { 1571 phba->SerialNumber[j++] = vpd[index++]; 1572 if (j == 31) 1573 break; 1574 } 1575 phba->SerialNumber[j] = 0; 1576 continue; 1577 } 1578 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1579 phba->vpd_flag |= VPD_MODEL_DESC; 1580 index += 2; 1581 i = vpd[index]; 1582 index += 1; 1583 j = 0; 1584 Length -= (3+i); 1585 while(i--) { 1586 phba->ModelDesc[j++] = vpd[index++]; 1587 if (j == 255) 1588 break; 1589 } 1590 phba->ModelDesc[j] = 0; 1591 continue; 1592 } 1593 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1594 phba->vpd_flag |= VPD_MODEL_NAME; 1595 index += 2; 1596 i = vpd[index]; 1597 index += 1; 1598 j = 0; 1599 Length -= (3+i); 1600 while(i--) { 1601 phba->ModelName[j++] = vpd[index++]; 1602 if (j == 79) 1603 break; 1604 } 1605 phba->ModelName[j] = 0; 1606 continue; 1607 } 1608 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1609 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1610 index += 2; 1611 i = vpd[index]; 1612 index += 1; 1613 j = 0; 1614 Length -= (3+i); 1615 while(i--) { 1616 phba->ProgramType[j++] = vpd[index++]; 1617 if (j == 255) 1618 break; 1619 } 1620 phba->ProgramType[j] = 0; 1621 continue; 1622 } 1623 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1624 phba->vpd_flag |= VPD_PORT; 1625 index += 2; 1626 i = vpd[index]; 1627 index += 1; 1628 j = 0; 1629 Length -= (3+i); 1630 while(i--) { 1631 phba->Port[j++] = vpd[index++]; 1632 if (j == 19) 1633 break; 1634 } 1635 phba->Port[j] = 0; 1636 continue; 1637 } 1638 else { 1639 index += 2; 1640 i = vpd[index]; 1641 index += 1; 1642 index += i; 1643 Length -= (3 + i); 1644 } 1645 } 1646 finished = 0; 1647 break; 1648 case 0x78: 1649 finished = 1; 1650 break; 1651 default: 1652 index ++; 1653 break; 1654 } 1655 } 1656 1657 return(1); 1658 } 1659 1660 /** 1661 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1662 * @phba: pointer to lpfc hba data structure. 1663 * @mdp: pointer to the data structure to hold the derived model name. 1664 * @descp: pointer to the data structure to hold the derived description. 1665 * 1666 * This routine retrieves HBA's description based on its registered PCI device 1667 * ID. The @descp passed into this function points to an array of 256 chars. It 1668 * shall be returned with the model name, maximum speed, and the host bus type. 1669 * The @mdp passed into this function points to an array of 80 chars. When the 1670 * function returns, the @mdp will be filled with the model name. 1671 **/ 1672 static void 1673 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1674 { 1675 lpfc_vpd_t *vp; 1676 uint16_t dev_id = phba->pcidev->device; 1677 int max_speed; 1678 int GE = 0; 1679 int oneConnect = 0; /* default is not a oneConnect */ 1680 struct { 1681 char *name; 1682 char *bus; 1683 char *function; 1684 } m = {"<Unknown>", "", ""}; 1685 1686 if (mdp && mdp[0] != '\0' 1687 && descp && descp[0] != '\0') 1688 return; 1689 1690 if (phba->lmt & LMT_10Gb) 1691 max_speed = 10; 1692 else if (phba->lmt & LMT_8Gb) 1693 max_speed = 8; 1694 else if (phba->lmt & LMT_4Gb) 1695 max_speed = 4; 1696 else if (phba->lmt & LMT_2Gb) 1697 max_speed = 2; 1698 else 1699 max_speed = 1; 1700 1701 vp = &phba->vpd; 1702 1703 switch (dev_id) { 1704 case PCI_DEVICE_ID_FIREFLY: 1705 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1706 break; 1707 case PCI_DEVICE_ID_SUPERFLY: 1708 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1709 m = (typeof(m)){"LP7000", "PCI", 1710 "Fibre Channel Adapter"}; 1711 else 1712 m = (typeof(m)){"LP7000E", "PCI", 1713 "Fibre Channel Adapter"}; 1714 break; 1715 case PCI_DEVICE_ID_DRAGONFLY: 1716 m = (typeof(m)){"LP8000", "PCI", 1717 "Fibre Channel Adapter"}; 1718 break; 1719 case PCI_DEVICE_ID_CENTAUR: 1720 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1721 m = (typeof(m)){"LP9002", "PCI", 1722 "Fibre Channel Adapter"}; 1723 else 1724 m = (typeof(m)){"LP9000", "PCI", 1725 "Fibre Channel Adapter"}; 1726 break; 1727 case PCI_DEVICE_ID_RFLY: 1728 m = (typeof(m)){"LP952", "PCI", 1729 "Fibre Channel Adapter"}; 1730 break; 1731 case PCI_DEVICE_ID_PEGASUS: 1732 m = (typeof(m)){"LP9802", "PCI-X", 1733 "Fibre Channel Adapter"}; 1734 break; 1735 case PCI_DEVICE_ID_THOR: 1736 m = (typeof(m)){"LP10000", "PCI-X", 1737 "Fibre Channel Adapter"}; 1738 break; 1739 case PCI_DEVICE_ID_VIPER: 1740 m = (typeof(m)){"LPX1000", "PCI-X", 1741 "Fibre Channel Adapter"}; 1742 break; 1743 case PCI_DEVICE_ID_PFLY: 1744 m = (typeof(m)){"LP982", "PCI-X", 1745 "Fibre Channel Adapter"}; 1746 break; 1747 case PCI_DEVICE_ID_TFLY: 1748 m = (typeof(m)){"LP1050", "PCI-X", 1749 "Fibre Channel Adapter"}; 1750 break; 1751 case PCI_DEVICE_ID_HELIOS: 1752 m = (typeof(m)){"LP11000", "PCI-X2", 1753 "Fibre Channel Adapter"}; 1754 break; 1755 case PCI_DEVICE_ID_HELIOS_SCSP: 1756 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1757 "Fibre Channel Adapter"}; 1758 break; 1759 case PCI_DEVICE_ID_HELIOS_DCSP: 1760 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1761 "Fibre Channel Adapter"}; 1762 break; 1763 case PCI_DEVICE_ID_NEPTUNE: 1764 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1765 break; 1766 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1767 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1768 break; 1769 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1770 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1771 break; 1772 case PCI_DEVICE_ID_BMID: 1773 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1774 break; 1775 case PCI_DEVICE_ID_BSMB: 1776 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1777 break; 1778 case PCI_DEVICE_ID_ZEPHYR: 1779 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1780 break; 1781 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1782 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1783 break; 1784 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1785 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1786 GE = 1; 1787 break; 1788 case PCI_DEVICE_ID_ZMID: 1789 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1790 break; 1791 case PCI_DEVICE_ID_ZSMB: 1792 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1793 break; 1794 case PCI_DEVICE_ID_LP101: 1795 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1796 break; 1797 case PCI_DEVICE_ID_LP10000S: 1798 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1799 break; 1800 case PCI_DEVICE_ID_LP11000S: 1801 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1802 break; 1803 case PCI_DEVICE_ID_LPE11000S: 1804 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1805 break; 1806 case PCI_DEVICE_ID_SAT: 1807 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_SAT_MID: 1810 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1811 break; 1812 case PCI_DEVICE_ID_SAT_SMB: 1813 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1814 break; 1815 case PCI_DEVICE_ID_SAT_DCSP: 1816 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1817 break; 1818 case PCI_DEVICE_ID_SAT_SCSP: 1819 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1820 break; 1821 case PCI_DEVICE_ID_SAT_S: 1822 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1823 break; 1824 case PCI_DEVICE_ID_HORNET: 1825 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1826 GE = 1; 1827 break; 1828 case PCI_DEVICE_ID_PROTEUS_VF: 1829 m = (typeof(m)){"LPev12000", "PCIe IOV", 1830 "Fibre Channel Adapter"}; 1831 break; 1832 case PCI_DEVICE_ID_PROTEUS_PF: 1833 m = (typeof(m)){"LPev12000", "PCIe IOV", 1834 "Fibre Channel Adapter"}; 1835 break; 1836 case PCI_DEVICE_ID_PROTEUS_S: 1837 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1838 "Fibre Channel Adapter"}; 1839 break; 1840 case PCI_DEVICE_ID_TIGERSHARK: 1841 oneConnect = 1; 1842 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1843 break; 1844 case PCI_DEVICE_ID_TOMCAT: 1845 oneConnect = 1; 1846 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1847 break; 1848 case PCI_DEVICE_ID_FALCON: 1849 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1850 "EmulexSecure Fibre"}; 1851 break; 1852 case PCI_DEVICE_ID_BALIUS: 1853 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1854 "Fibre Channel Adapter"}; 1855 break; 1856 default: 1857 m = (typeof(m)){"Unknown", "", ""}; 1858 break; 1859 } 1860 1861 if (mdp && mdp[0] == '\0') 1862 snprintf(mdp, 79,"%s", m.name); 1863 /* oneConnect hba requires special processing, they are all initiators 1864 * and we put the port number on the end 1865 */ 1866 if (descp && descp[0] == '\0') { 1867 if (oneConnect) 1868 snprintf(descp, 255, 1869 "Emulex OneConnect %s, %s Initiator, Port %s", 1870 m.name, m.function, 1871 phba->Port); 1872 else 1873 snprintf(descp, 255, 1874 "Emulex %s %d%s %s %s", 1875 m.name, max_speed, (GE) ? "GE" : "Gb", 1876 m.bus, m.function); 1877 } 1878 } 1879 1880 /** 1881 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1882 * @phba: pointer to lpfc hba data structure. 1883 * @pring: pointer to a IOCB ring. 1884 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1885 * 1886 * This routine posts a given number of IOCBs with the associated DMA buffer 1887 * descriptors specified by the cnt argument to the given IOCB ring. 1888 * 1889 * Return codes 1890 * The number of IOCBs NOT able to be posted to the IOCB ring. 1891 **/ 1892 int 1893 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1894 { 1895 IOCB_t *icmd; 1896 struct lpfc_iocbq *iocb; 1897 struct lpfc_dmabuf *mp1, *mp2; 1898 1899 cnt += pring->missbufcnt; 1900 1901 /* While there are buffers to post */ 1902 while (cnt > 0) { 1903 /* Allocate buffer for command iocb */ 1904 iocb = lpfc_sli_get_iocbq(phba); 1905 if (iocb == NULL) { 1906 pring->missbufcnt = cnt; 1907 return cnt; 1908 } 1909 icmd = &iocb->iocb; 1910 1911 /* 2 buffers can be posted per command */ 1912 /* Allocate buffer to post */ 1913 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1914 if (mp1) 1915 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1916 if (!mp1 || !mp1->virt) { 1917 kfree(mp1); 1918 lpfc_sli_release_iocbq(phba, iocb); 1919 pring->missbufcnt = cnt; 1920 return cnt; 1921 } 1922 1923 INIT_LIST_HEAD(&mp1->list); 1924 /* Allocate buffer to post */ 1925 if (cnt > 1) { 1926 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1927 if (mp2) 1928 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1929 &mp2->phys); 1930 if (!mp2 || !mp2->virt) { 1931 kfree(mp2); 1932 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1933 kfree(mp1); 1934 lpfc_sli_release_iocbq(phba, iocb); 1935 pring->missbufcnt = cnt; 1936 return cnt; 1937 } 1938 1939 INIT_LIST_HEAD(&mp2->list); 1940 } else { 1941 mp2 = NULL; 1942 } 1943 1944 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1945 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1946 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1947 icmd->ulpBdeCount = 1; 1948 cnt--; 1949 if (mp2) { 1950 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1951 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1952 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1953 cnt--; 1954 icmd->ulpBdeCount = 2; 1955 } 1956 1957 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1958 icmd->ulpLe = 1; 1959 1960 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1961 IOCB_ERROR) { 1962 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1963 kfree(mp1); 1964 cnt++; 1965 if (mp2) { 1966 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1967 kfree(mp2); 1968 cnt++; 1969 } 1970 lpfc_sli_release_iocbq(phba, iocb); 1971 pring->missbufcnt = cnt; 1972 return cnt; 1973 } 1974 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1975 if (mp2) 1976 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1977 } 1978 pring->missbufcnt = 0; 1979 return 0; 1980 } 1981 1982 /** 1983 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1984 * @phba: pointer to lpfc hba data structure. 1985 * 1986 * This routine posts initial receive IOCB buffers to the ELS ring. The 1987 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1988 * set to 64 IOCBs. 1989 * 1990 * Return codes 1991 * 0 - success (currently always success) 1992 **/ 1993 static int 1994 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1995 { 1996 struct lpfc_sli *psli = &phba->sli; 1997 1998 /* Ring 0, ELS / CT buffers */ 1999 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2000 /* Ring 2 - FCP no buffers needed */ 2001 2002 return 0; 2003 } 2004 2005 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2006 2007 /** 2008 * lpfc_sha_init - Set up initial array of hash table entries 2009 * @HashResultPointer: pointer to an array as hash table. 2010 * 2011 * This routine sets up the initial values to the array of hash table entries 2012 * for the LC HBAs. 2013 **/ 2014 static void 2015 lpfc_sha_init(uint32_t * HashResultPointer) 2016 { 2017 HashResultPointer[0] = 0x67452301; 2018 HashResultPointer[1] = 0xEFCDAB89; 2019 HashResultPointer[2] = 0x98BADCFE; 2020 HashResultPointer[3] = 0x10325476; 2021 HashResultPointer[4] = 0xC3D2E1F0; 2022 } 2023 2024 /** 2025 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2026 * @HashResultPointer: pointer to an initial/result hash table. 2027 * @HashWorkingPointer: pointer to an working hash table. 2028 * 2029 * This routine iterates an initial hash table pointed by @HashResultPointer 2030 * with the values from the working hash table pointeed by @HashWorkingPointer. 2031 * The results are putting back to the initial hash table, returned through 2032 * the @HashResultPointer as the result hash table. 2033 **/ 2034 static void 2035 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2036 { 2037 int t; 2038 uint32_t TEMP; 2039 uint32_t A, B, C, D, E; 2040 t = 16; 2041 do { 2042 HashWorkingPointer[t] = 2043 S(1, 2044 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2045 8] ^ 2046 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2047 } while (++t <= 79); 2048 t = 0; 2049 A = HashResultPointer[0]; 2050 B = HashResultPointer[1]; 2051 C = HashResultPointer[2]; 2052 D = HashResultPointer[3]; 2053 E = HashResultPointer[4]; 2054 2055 do { 2056 if (t < 20) { 2057 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2058 } else if (t < 40) { 2059 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2060 } else if (t < 60) { 2061 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2062 } else { 2063 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2064 } 2065 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2066 E = D; 2067 D = C; 2068 C = S(30, B); 2069 B = A; 2070 A = TEMP; 2071 } while (++t <= 79); 2072 2073 HashResultPointer[0] += A; 2074 HashResultPointer[1] += B; 2075 HashResultPointer[2] += C; 2076 HashResultPointer[3] += D; 2077 HashResultPointer[4] += E; 2078 2079 } 2080 2081 /** 2082 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2083 * @RandomChallenge: pointer to the entry of host challenge random number array. 2084 * @HashWorking: pointer to the entry of the working hash array. 2085 * 2086 * This routine calculates the working hash array referred by @HashWorking 2087 * from the challenge random numbers associated with the host, referred by 2088 * @RandomChallenge. The result is put into the entry of the working hash 2089 * array and returned by reference through @HashWorking. 2090 **/ 2091 static void 2092 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2093 { 2094 *HashWorking = (*RandomChallenge ^ *HashWorking); 2095 } 2096 2097 /** 2098 * lpfc_hba_init - Perform special handling for LC HBA initialization 2099 * @phba: pointer to lpfc hba data structure. 2100 * @hbainit: pointer to an array of unsigned 32-bit integers. 2101 * 2102 * This routine performs the special handling for LC HBA initialization. 2103 **/ 2104 void 2105 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2106 { 2107 int t; 2108 uint32_t *HashWorking; 2109 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2110 2111 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2112 if (!HashWorking) 2113 return; 2114 2115 HashWorking[0] = HashWorking[78] = *pwwnn++; 2116 HashWorking[1] = HashWorking[79] = *pwwnn; 2117 2118 for (t = 0; t < 7; t++) 2119 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2120 2121 lpfc_sha_init(hbainit); 2122 lpfc_sha_iterate(hbainit, HashWorking); 2123 kfree(HashWorking); 2124 } 2125 2126 /** 2127 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2128 * @vport: pointer to a virtual N_Port data structure. 2129 * 2130 * This routine performs the necessary cleanups before deleting the @vport. 2131 * It invokes the discovery state machine to perform necessary state 2132 * transitions and to release the ndlps associated with the @vport. Note, 2133 * the physical port is treated as @vport 0. 2134 **/ 2135 void 2136 lpfc_cleanup(struct lpfc_vport *vport) 2137 { 2138 struct lpfc_hba *phba = vport->phba; 2139 struct lpfc_nodelist *ndlp, *next_ndlp; 2140 int i = 0; 2141 2142 if (phba->link_state > LPFC_LINK_DOWN) 2143 lpfc_port_link_failure(vport); 2144 2145 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2146 if (!NLP_CHK_NODE_ACT(ndlp)) { 2147 ndlp = lpfc_enable_node(vport, ndlp, 2148 NLP_STE_UNUSED_NODE); 2149 if (!ndlp) 2150 continue; 2151 spin_lock_irq(&phba->ndlp_lock); 2152 NLP_SET_FREE_REQ(ndlp); 2153 spin_unlock_irq(&phba->ndlp_lock); 2154 /* Trigger the release of the ndlp memory */ 2155 lpfc_nlp_put(ndlp); 2156 continue; 2157 } 2158 spin_lock_irq(&phba->ndlp_lock); 2159 if (NLP_CHK_FREE_REQ(ndlp)) { 2160 /* The ndlp should not be in memory free mode already */ 2161 spin_unlock_irq(&phba->ndlp_lock); 2162 continue; 2163 } else 2164 /* Indicate request for freeing ndlp memory */ 2165 NLP_SET_FREE_REQ(ndlp); 2166 spin_unlock_irq(&phba->ndlp_lock); 2167 2168 if (vport->port_type != LPFC_PHYSICAL_PORT && 2169 ndlp->nlp_DID == Fabric_DID) { 2170 /* Just free up ndlp with Fabric_DID for vports */ 2171 lpfc_nlp_put(ndlp); 2172 continue; 2173 } 2174 2175 if (ndlp->nlp_type & NLP_FABRIC) 2176 lpfc_disc_state_machine(vport, ndlp, NULL, 2177 NLP_EVT_DEVICE_RECOVERY); 2178 2179 lpfc_disc_state_machine(vport, ndlp, NULL, 2180 NLP_EVT_DEVICE_RM); 2181 2182 } 2183 2184 /* At this point, ALL ndlp's should be gone 2185 * because of the previous NLP_EVT_DEVICE_RM. 2186 * Lets wait for this to happen, if needed. 2187 */ 2188 while (!list_empty(&vport->fc_nodes)) { 2189 if (i++ > 3000) { 2190 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2191 "0233 Nodelist not empty\n"); 2192 list_for_each_entry_safe(ndlp, next_ndlp, 2193 &vport->fc_nodes, nlp_listp) { 2194 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2195 LOG_NODE, 2196 "0282 did:x%x ndlp:x%p " 2197 "usgmap:x%x refcnt:%d\n", 2198 ndlp->nlp_DID, (void *)ndlp, 2199 ndlp->nlp_usg_map, 2200 atomic_read( 2201 &ndlp->kref.refcount)); 2202 } 2203 break; 2204 } 2205 2206 /* Wait for any activity on ndlps to settle */ 2207 msleep(10); 2208 } 2209 } 2210 2211 /** 2212 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2213 * @vport: pointer to a virtual N_Port data structure. 2214 * 2215 * This routine stops all the timers associated with a @vport. This function 2216 * is invoked before disabling or deleting a @vport. Note that the physical 2217 * port is treated as @vport 0. 2218 **/ 2219 void 2220 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2221 { 2222 del_timer_sync(&vport->els_tmofunc); 2223 del_timer_sync(&vport->fc_fdmitmo); 2224 lpfc_can_disctmo(vport); 2225 return; 2226 } 2227 2228 /** 2229 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2230 * @phba: pointer to lpfc hba data structure. 2231 * 2232 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2233 * caller of this routine should already hold the host lock. 2234 **/ 2235 void 2236 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2237 { 2238 /* Clear pending FCF rediscovery wait flag */ 2239 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2240 2241 /* Now, try to stop the timer */ 2242 del_timer(&phba->fcf.redisc_wait); 2243 } 2244 2245 /** 2246 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2247 * @phba: pointer to lpfc hba data structure. 2248 * 2249 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2250 * checks whether the FCF rediscovery wait timer is pending with the host 2251 * lock held before proceeding with disabling the timer and clearing the 2252 * wait timer pendig flag. 2253 **/ 2254 void 2255 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2256 { 2257 spin_lock_irq(&phba->hbalock); 2258 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2259 /* FCF rediscovery timer already fired or stopped */ 2260 spin_unlock_irq(&phba->hbalock); 2261 return; 2262 } 2263 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2264 /* Clear failover in progress flags */ 2265 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2266 spin_unlock_irq(&phba->hbalock); 2267 } 2268 2269 /** 2270 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2271 * @phba: pointer to lpfc hba data structure. 2272 * 2273 * This routine stops all the timers associated with a HBA. This function is 2274 * invoked before either putting a HBA offline or unloading the driver. 2275 **/ 2276 void 2277 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2278 { 2279 lpfc_stop_vport_timers(phba->pport); 2280 del_timer_sync(&phba->sli.mbox_tmo); 2281 del_timer_sync(&phba->fabric_block_timer); 2282 del_timer_sync(&phba->eratt_poll); 2283 del_timer_sync(&phba->hb_tmofunc); 2284 phba->hb_outstanding = 0; 2285 2286 switch (phba->pci_dev_grp) { 2287 case LPFC_PCI_DEV_LP: 2288 /* Stop any LightPulse device specific driver timers */ 2289 del_timer_sync(&phba->fcp_poll_timer); 2290 break; 2291 case LPFC_PCI_DEV_OC: 2292 /* Stop any OneConnect device sepcific driver timers */ 2293 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2294 break; 2295 default: 2296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2297 "0297 Invalid device group (x%x)\n", 2298 phba->pci_dev_grp); 2299 break; 2300 } 2301 return; 2302 } 2303 2304 /** 2305 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2306 * @phba: pointer to lpfc hba data structure. 2307 * 2308 * This routine marks a HBA's management interface as blocked. Once the HBA's 2309 * management interface is marked as blocked, all the user space access to 2310 * the HBA, whether they are from sysfs interface or libdfc interface will 2311 * all be blocked. The HBA is set to block the management interface when the 2312 * driver prepares the HBA interface for online or offline. 2313 **/ 2314 static void 2315 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2316 { 2317 unsigned long iflag; 2318 uint8_t actcmd = MBX_HEARTBEAT; 2319 unsigned long timeout; 2320 2321 2322 spin_lock_irqsave(&phba->hbalock, iflag); 2323 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2324 if (phba->sli.mbox_active) 2325 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2326 spin_unlock_irqrestore(&phba->hbalock, iflag); 2327 /* Determine how long we might wait for the active mailbox 2328 * command to be gracefully completed by firmware. 2329 */ 2330 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2331 jiffies; 2332 /* Wait for the outstnading mailbox command to complete */ 2333 while (phba->sli.mbox_active) { 2334 /* Check active mailbox complete status every 2ms */ 2335 msleep(2); 2336 if (time_after(jiffies, timeout)) { 2337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2338 "2813 Mgmt IO is Blocked %x " 2339 "- mbox cmd %x still active\n", 2340 phba->sli.sli_flag, actcmd); 2341 break; 2342 } 2343 } 2344 } 2345 2346 /** 2347 * lpfc_online - Initialize and bring a HBA online 2348 * @phba: pointer to lpfc hba data structure. 2349 * 2350 * This routine initializes the HBA and brings a HBA online. During this 2351 * process, the management interface is blocked to prevent user space access 2352 * to the HBA interfering with the driver initialization. 2353 * 2354 * Return codes 2355 * 0 - successful 2356 * 1 - failed 2357 **/ 2358 int 2359 lpfc_online(struct lpfc_hba *phba) 2360 { 2361 struct lpfc_vport *vport; 2362 struct lpfc_vport **vports; 2363 int i; 2364 2365 if (!phba) 2366 return 0; 2367 vport = phba->pport; 2368 2369 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2370 return 0; 2371 2372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2373 "0458 Bring Adapter online\n"); 2374 2375 lpfc_block_mgmt_io(phba); 2376 2377 if (!lpfc_sli_queue_setup(phba)) { 2378 lpfc_unblock_mgmt_io(phba); 2379 return 1; 2380 } 2381 2382 if (phba->sli_rev == LPFC_SLI_REV4) { 2383 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2384 lpfc_unblock_mgmt_io(phba); 2385 return 1; 2386 } 2387 } else { 2388 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2389 lpfc_unblock_mgmt_io(phba); 2390 return 1; 2391 } 2392 } 2393 2394 vports = lpfc_create_vport_work_array(phba); 2395 if (vports != NULL) 2396 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2397 struct Scsi_Host *shost; 2398 shost = lpfc_shost_from_vport(vports[i]); 2399 spin_lock_irq(shost->host_lock); 2400 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2401 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2402 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2403 if (phba->sli_rev == LPFC_SLI_REV4) 2404 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2405 spin_unlock_irq(shost->host_lock); 2406 } 2407 lpfc_destroy_vport_work_array(phba, vports); 2408 2409 lpfc_unblock_mgmt_io(phba); 2410 return 0; 2411 } 2412 2413 /** 2414 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2415 * @phba: pointer to lpfc hba data structure. 2416 * 2417 * This routine marks a HBA's management interface as not blocked. Once the 2418 * HBA's management interface is marked as not blocked, all the user space 2419 * access to the HBA, whether they are from sysfs interface or libdfc 2420 * interface will be allowed. The HBA is set to block the management interface 2421 * when the driver prepares the HBA interface for online or offline and then 2422 * set to unblock the management interface afterwards. 2423 **/ 2424 void 2425 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2426 { 2427 unsigned long iflag; 2428 2429 spin_lock_irqsave(&phba->hbalock, iflag); 2430 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2431 spin_unlock_irqrestore(&phba->hbalock, iflag); 2432 } 2433 2434 /** 2435 * lpfc_offline_prep - Prepare a HBA to be brought offline 2436 * @phba: pointer to lpfc hba data structure. 2437 * 2438 * This routine is invoked to prepare a HBA to be brought offline. It performs 2439 * unregistration login to all the nodes on all vports and flushes the mailbox 2440 * queue to make it ready to be brought offline. 2441 **/ 2442 void 2443 lpfc_offline_prep(struct lpfc_hba * phba) 2444 { 2445 struct lpfc_vport *vport = phba->pport; 2446 struct lpfc_nodelist *ndlp, *next_ndlp; 2447 struct lpfc_vport **vports; 2448 struct Scsi_Host *shost; 2449 int i; 2450 2451 if (vport->fc_flag & FC_OFFLINE_MODE) 2452 return; 2453 2454 lpfc_block_mgmt_io(phba); 2455 2456 lpfc_linkdown(phba); 2457 2458 /* Issue an unreg_login to all nodes on all vports */ 2459 vports = lpfc_create_vport_work_array(phba); 2460 if (vports != NULL) { 2461 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2462 if (vports[i]->load_flag & FC_UNLOADING) 2463 continue; 2464 shost = lpfc_shost_from_vport(vports[i]); 2465 spin_lock_irq(shost->host_lock); 2466 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2467 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2468 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2469 spin_unlock_irq(shost->host_lock); 2470 2471 shost = lpfc_shost_from_vport(vports[i]); 2472 list_for_each_entry_safe(ndlp, next_ndlp, 2473 &vports[i]->fc_nodes, 2474 nlp_listp) { 2475 if (!NLP_CHK_NODE_ACT(ndlp)) 2476 continue; 2477 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2478 continue; 2479 if (ndlp->nlp_type & NLP_FABRIC) { 2480 lpfc_disc_state_machine(vports[i], ndlp, 2481 NULL, NLP_EVT_DEVICE_RECOVERY); 2482 lpfc_disc_state_machine(vports[i], ndlp, 2483 NULL, NLP_EVT_DEVICE_RM); 2484 } 2485 spin_lock_irq(shost->host_lock); 2486 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2487 spin_unlock_irq(shost->host_lock); 2488 lpfc_unreg_rpi(vports[i], ndlp); 2489 } 2490 } 2491 } 2492 lpfc_destroy_vport_work_array(phba, vports); 2493 2494 lpfc_sli_mbox_sys_shutdown(phba); 2495 } 2496 2497 /** 2498 * lpfc_offline - Bring a HBA offline 2499 * @phba: pointer to lpfc hba data structure. 2500 * 2501 * This routine actually brings a HBA offline. It stops all the timers 2502 * associated with the HBA, brings down the SLI layer, and eventually 2503 * marks the HBA as in offline state for the upper layer protocol. 2504 **/ 2505 void 2506 lpfc_offline(struct lpfc_hba *phba) 2507 { 2508 struct Scsi_Host *shost; 2509 struct lpfc_vport **vports; 2510 int i; 2511 2512 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2513 return; 2514 2515 /* stop port and all timers associated with this hba */ 2516 lpfc_stop_port(phba); 2517 vports = lpfc_create_vport_work_array(phba); 2518 if (vports != NULL) 2519 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2520 lpfc_stop_vport_timers(vports[i]); 2521 lpfc_destroy_vport_work_array(phba, vports); 2522 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2523 "0460 Bring Adapter offline\n"); 2524 /* Bring down the SLI Layer and cleanup. The HBA is offline 2525 now. */ 2526 lpfc_sli_hba_down(phba); 2527 spin_lock_irq(&phba->hbalock); 2528 phba->work_ha = 0; 2529 spin_unlock_irq(&phba->hbalock); 2530 vports = lpfc_create_vport_work_array(phba); 2531 if (vports != NULL) 2532 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2533 shost = lpfc_shost_from_vport(vports[i]); 2534 spin_lock_irq(shost->host_lock); 2535 vports[i]->work_port_events = 0; 2536 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2537 spin_unlock_irq(shost->host_lock); 2538 } 2539 lpfc_destroy_vport_work_array(phba, vports); 2540 } 2541 2542 /** 2543 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2544 * @phba: pointer to lpfc hba data structure. 2545 * 2546 * This routine is to free all the SCSI buffers and IOCBs from the driver 2547 * list back to kernel. It is called from lpfc_pci_remove_one to free 2548 * the internal resources before the device is removed from the system. 2549 * 2550 * Return codes 2551 * 0 - successful (for now, it always returns 0) 2552 **/ 2553 static int 2554 lpfc_scsi_free(struct lpfc_hba *phba) 2555 { 2556 struct lpfc_scsi_buf *sb, *sb_next; 2557 struct lpfc_iocbq *io, *io_next; 2558 2559 spin_lock_irq(&phba->hbalock); 2560 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2561 spin_lock(&phba->scsi_buf_list_lock); 2562 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2563 list_del(&sb->list); 2564 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2565 sb->dma_handle); 2566 kfree(sb); 2567 phba->total_scsi_bufs--; 2568 } 2569 spin_unlock(&phba->scsi_buf_list_lock); 2570 2571 /* Release all the lpfc_iocbq entries maintained by this host. */ 2572 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2573 list_del(&io->list); 2574 kfree(io); 2575 phba->total_iocbq_bufs--; 2576 } 2577 spin_unlock_irq(&phba->hbalock); 2578 return 0; 2579 } 2580 2581 /** 2582 * lpfc_create_port - Create an FC port 2583 * @phba: pointer to lpfc hba data structure. 2584 * @instance: a unique integer ID to this FC port. 2585 * @dev: pointer to the device data structure. 2586 * 2587 * This routine creates a FC port for the upper layer protocol. The FC port 2588 * can be created on top of either a physical port or a virtual port provided 2589 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2590 * and associates the FC port created before adding the shost into the SCSI 2591 * layer. 2592 * 2593 * Return codes 2594 * @vport - pointer to the virtual N_Port data structure. 2595 * NULL - port create failed. 2596 **/ 2597 struct lpfc_vport * 2598 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2599 { 2600 struct lpfc_vport *vport; 2601 struct Scsi_Host *shost; 2602 int error = 0; 2603 2604 if (dev != &phba->pcidev->dev) 2605 shost = scsi_host_alloc(&lpfc_vport_template, 2606 sizeof(struct lpfc_vport)); 2607 else 2608 shost = scsi_host_alloc(&lpfc_template, 2609 sizeof(struct lpfc_vport)); 2610 if (!shost) 2611 goto out; 2612 2613 vport = (struct lpfc_vport *) shost->hostdata; 2614 vport->phba = phba; 2615 vport->load_flag |= FC_LOADING; 2616 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2617 vport->fc_rscn_flush = 0; 2618 2619 lpfc_get_vport_cfgparam(vport); 2620 shost->unique_id = instance; 2621 shost->max_id = LPFC_MAX_TARGET; 2622 shost->max_lun = vport->cfg_max_luns; 2623 shost->this_id = -1; 2624 shost->max_cmd_len = 16; 2625 if (phba->sli_rev == LPFC_SLI_REV4) { 2626 shost->dma_boundary = 2627 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2628 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2629 } 2630 2631 /* 2632 * Set initial can_queue value since 0 is no longer supported and 2633 * scsi_add_host will fail. This will be adjusted later based on the 2634 * max xri value determined in hba setup. 2635 */ 2636 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2637 if (dev != &phba->pcidev->dev) { 2638 shost->transportt = lpfc_vport_transport_template; 2639 vport->port_type = LPFC_NPIV_PORT; 2640 } else { 2641 shost->transportt = lpfc_transport_template; 2642 vport->port_type = LPFC_PHYSICAL_PORT; 2643 } 2644 2645 /* Initialize all internally managed lists. */ 2646 INIT_LIST_HEAD(&vport->fc_nodes); 2647 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2648 spin_lock_init(&vport->work_port_lock); 2649 2650 init_timer(&vport->fc_disctmo); 2651 vport->fc_disctmo.function = lpfc_disc_timeout; 2652 vport->fc_disctmo.data = (unsigned long)vport; 2653 2654 init_timer(&vport->fc_fdmitmo); 2655 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2656 vport->fc_fdmitmo.data = (unsigned long)vport; 2657 2658 init_timer(&vport->els_tmofunc); 2659 vport->els_tmofunc.function = lpfc_els_timeout; 2660 vport->els_tmofunc.data = (unsigned long)vport; 2661 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2662 if (error) 2663 goto out_put_shost; 2664 2665 spin_lock_irq(&phba->hbalock); 2666 list_add_tail(&vport->listentry, &phba->port_list); 2667 spin_unlock_irq(&phba->hbalock); 2668 return vport; 2669 2670 out_put_shost: 2671 scsi_host_put(shost); 2672 out: 2673 return NULL; 2674 } 2675 2676 /** 2677 * destroy_port - destroy an FC port 2678 * @vport: pointer to an lpfc virtual N_Port data structure. 2679 * 2680 * This routine destroys a FC port from the upper layer protocol. All the 2681 * resources associated with the port are released. 2682 **/ 2683 void 2684 destroy_port(struct lpfc_vport *vport) 2685 { 2686 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2687 struct lpfc_hba *phba = vport->phba; 2688 2689 lpfc_debugfs_terminate(vport); 2690 fc_remove_host(shost); 2691 scsi_remove_host(shost); 2692 2693 spin_lock_irq(&phba->hbalock); 2694 list_del_init(&vport->listentry); 2695 spin_unlock_irq(&phba->hbalock); 2696 2697 lpfc_cleanup(vport); 2698 return; 2699 } 2700 2701 /** 2702 * lpfc_get_instance - Get a unique integer ID 2703 * 2704 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2705 * uses the kernel idr facility to perform the task. 2706 * 2707 * Return codes: 2708 * instance - a unique integer ID allocated as the new instance. 2709 * -1 - lpfc get instance failed. 2710 **/ 2711 int 2712 lpfc_get_instance(void) 2713 { 2714 int instance = 0; 2715 2716 /* Assign an unused number */ 2717 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2718 return -1; 2719 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2720 return -1; 2721 return instance; 2722 } 2723 2724 /** 2725 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2726 * @shost: pointer to SCSI host data structure. 2727 * @time: elapsed time of the scan in jiffies. 2728 * 2729 * This routine is called by the SCSI layer with a SCSI host to determine 2730 * whether the scan host is finished. 2731 * 2732 * Note: there is no scan_start function as adapter initialization will have 2733 * asynchronously kicked off the link initialization. 2734 * 2735 * Return codes 2736 * 0 - SCSI host scan is not over yet. 2737 * 1 - SCSI host scan is over. 2738 **/ 2739 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2740 { 2741 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2742 struct lpfc_hba *phba = vport->phba; 2743 int stat = 0; 2744 2745 spin_lock_irq(shost->host_lock); 2746 2747 if (vport->load_flag & FC_UNLOADING) { 2748 stat = 1; 2749 goto finished; 2750 } 2751 if (time >= 30 * HZ) { 2752 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2753 "0461 Scanning longer than 30 " 2754 "seconds. Continuing initialization\n"); 2755 stat = 1; 2756 goto finished; 2757 } 2758 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2759 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2760 "0465 Link down longer than 15 " 2761 "seconds. Continuing initialization\n"); 2762 stat = 1; 2763 goto finished; 2764 } 2765 2766 if (vport->port_state != LPFC_VPORT_READY) 2767 goto finished; 2768 if (vport->num_disc_nodes || vport->fc_prli_sent) 2769 goto finished; 2770 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2771 goto finished; 2772 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2773 goto finished; 2774 2775 stat = 1; 2776 2777 finished: 2778 spin_unlock_irq(shost->host_lock); 2779 return stat; 2780 } 2781 2782 /** 2783 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2784 * @shost: pointer to SCSI host data structure. 2785 * 2786 * This routine initializes a given SCSI host attributes on a FC port. The 2787 * SCSI host can be either on top of a physical port or a virtual port. 2788 **/ 2789 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2790 { 2791 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2792 struct lpfc_hba *phba = vport->phba; 2793 /* 2794 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2795 */ 2796 2797 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2798 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2799 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2800 2801 memset(fc_host_supported_fc4s(shost), 0, 2802 sizeof(fc_host_supported_fc4s(shost))); 2803 fc_host_supported_fc4s(shost)[2] = 1; 2804 fc_host_supported_fc4s(shost)[7] = 1; 2805 2806 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2807 sizeof fc_host_symbolic_name(shost)); 2808 2809 fc_host_supported_speeds(shost) = 0; 2810 if (phba->lmt & LMT_10Gb) 2811 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2812 if (phba->lmt & LMT_8Gb) 2813 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2814 if (phba->lmt & LMT_4Gb) 2815 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2816 if (phba->lmt & LMT_2Gb) 2817 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2818 if (phba->lmt & LMT_1Gb) 2819 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2820 2821 fc_host_maxframe_size(shost) = 2822 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2823 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2824 2825 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2826 2827 /* This value is also unchanging */ 2828 memset(fc_host_active_fc4s(shost), 0, 2829 sizeof(fc_host_active_fc4s(shost))); 2830 fc_host_active_fc4s(shost)[2] = 1; 2831 fc_host_active_fc4s(shost)[7] = 1; 2832 2833 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2834 spin_lock_irq(shost->host_lock); 2835 vport->load_flag &= ~FC_LOADING; 2836 spin_unlock_irq(shost->host_lock); 2837 } 2838 2839 /** 2840 * lpfc_stop_port_s3 - Stop SLI3 device port 2841 * @phba: pointer to lpfc hba data structure. 2842 * 2843 * This routine is invoked to stop an SLI3 device port, it stops the device 2844 * from generating interrupts and stops the device driver's timers for the 2845 * device. 2846 **/ 2847 static void 2848 lpfc_stop_port_s3(struct lpfc_hba *phba) 2849 { 2850 /* Clear all interrupt enable conditions */ 2851 writel(0, phba->HCregaddr); 2852 readl(phba->HCregaddr); /* flush */ 2853 /* Clear all pending interrupts */ 2854 writel(0xffffffff, phba->HAregaddr); 2855 readl(phba->HAregaddr); /* flush */ 2856 2857 /* Reset some HBA SLI setup states */ 2858 lpfc_stop_hba_timers(phba); 2859 phba->pport->work_port_events = 0; 2860 } 2861 2862 /** 2863 * lpfc_stop_port_s4 - Stop SLI4 device port 2864 * @phba: pointer to lpfc hba data structure. 2865 * 2866 * This routine is invoked to stop an SLI4 device port, it stops the device 2867 * from generating interrupts and stops the device driver's timers for the 2868 * device. 2869 **/ 2870 static void 2871 lpfc_stop_port_s4(struct lpfc_hba *phba) 2872 { 2873 /* Reset some HBA SLI4 setup states */ 2874 lpfc_stop_hba_timers(phba); 2875 phba->pport->work_port_events = 0; 2876 phba->sli4_hba.intr_enable = 0; 2877 } 2878 2879 /** 2880 * lpfc_stop_port - Wrapper function for stopping hba port 2881 * @phba: Pointer to HBA context object. 2882 * 2883 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2884 * the API jump table function pointer from the lpfc_hba struct. 2885 **/ 2886 void 2887 lpfc_stop_port(struct lpfc_hba *phba) 2888 { 2889 phba->lpfc_stop_port(phba); 2890 } 2891 2892 /** 2893 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2894 * @phba: Pointer to hba for which this call is being executed. 2895 * 2896 * This routine starts the timer waiting for the FCF rediscovery to complete. 2897 **/ 2898 void 2899 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2900 { 2901 unsigned long fcf_redisc_wait_tmo = 2902 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2903 /* Start fcf rediscovery wait period timer */ 2904 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2905 spin_lock_irq(&phba->hbalock); 2906 /* Allow action to new fcf asynchronous event */ 2907 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2908 /* Mark the FCF rediscovery pending state */ 2909 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2910 spin_unlock_irq(&phba->hbalock); 2911 } 2912 2913 /** 2914 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2915 * @ptr: Map to lpfc_hba data structure pointer. 2916 * 2917 * This routine is invoked when waiting for FCF table rediscover has been 2918 * timed out. If new FCF record(s) has (have) been discovered during the 2919 * wait period, a new FCF event shall be added to the FCOE async event 2920 * list, and then worker thread shall be waked up for processing from the 2921 * worker thread context. 2922 **/ 2923 void 2924 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2925 { 2926 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2927 2928 /* Don't send FCF rediscovery event if timer cancelled */ 2929 spin_lock_irq(&phba->hbalock); 2930 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2931 spin_unlock_irq(&phba->hbalock); 2932 return; 2933 } 2934 /* Clear FCF rediscovery timer pending flag */ 2935 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2936 /* FCF rediscovery event to worker thread */ 2937 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2938 spin_unlock_irq(&phba->hbalock); 2939 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2940 "2776 FCF rediscover quiescent timer expired\n"); 2941 /* wake up worker thread */ 2942 lpfc_worker_wake_up(phba); 2943 } 2944 2945 /** 2946 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2947 * @phba: pointer to lpfc hba data structure. 2948 * 2949 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2950 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2951 * was successful and the firmware supports FCoE. Any other return indicates 2952 * a error. It is assumed that this function will be called before interrupts 2953 * are enabled. 2954 **/ 2955 static int 2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2957 { 2958 int rc = 0; 2959 LPFC_MBOXQ_t *mboxq; 2960 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2961 uint32_t length; 2962 uint32_t shdr_status, shdr_add_status; 2963 2964 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2965 if (!mboxq) { 2966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2967 "2621 Failed to allocate mbox for " 2968 "query firmware config cmd\n"); 2969 return -ENOMEM; 2970 } 2971 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 2972 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 2973 sizeof(struct lpfc_sli4_cfg_mhdr)); 2974 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 2975 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 2976 length, LPFC_SLI4_MBX_EMBED); 2977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2978 /* The IOCTL status is embedded in the mailbox subheader. */ 2979 shdr_status = bf_get(lpfc_mbox_hdr_status, 2980 &query_fw_cfg->header.cfg_shdr.response); 2981 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2982 &query_fw_cfg->header.cfg_shdr.response); 2983 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2985 "2622 Query Firmware Config failed " 2986 "mbx status x%x, status x%x add_status x%x\n", 2987 rc, shdr_status, shdr_add_status); 2988 return -EINVAL; 2989 } 2990 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 2991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2992 "2623 FCoE Function not supported by firmware. " 2993 "Function mode = %08x\n", 2994 query_fw_cfg->function_mode); 2995 return -EINVAL; 2996 } 2997 if (rc != MBX_TIMEOUT) 2998 mempool_free(mboxq, phba->mbox_mem_pool); 2999 return 0; 3000 } 3001 3002 /** 3003 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3004 * @phba: pointer to lpfc hba data structure. 3005 * @acqe_link: pointer to the async link completion queue entry. 3006 * 3007 * This routine is to parse the SLI4 link-attention link fault code and 3008 * translate it into the base driver's read link attention mailbox command 3009 * status. 3010 * 3011 * Return: Link-attention status in terms of base driver's coding. 3012 **/ 3013 static uint16_t 3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3015 struct lpfc_acqe_link *acqe_link) 3016 { 3017 uint16_t latt_fault; 3018 3019 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3020 case LPFC_ASYNC_LINK_FAULT_NONE: 3021 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3022 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3023 latt_fault = 0; 3024 break; 3025 default: 3026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3027 "0398 Invalid link fault code: x%x\n", 3028 bf_get(lpfc_acqe_link_fault, acqe_link)); 3029 latt_fault = MBXERR_ERROR; 3030 break; 3031 } 3032 return latt_fault; 3033 } 3034 3035 /** 3036 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3037 * @phba: pointer to lpfc hba data structure. 3038 * @acqe_link: pointer to the async link completion queue entry. 3039 * 3040 * This routine is to parse the SLI4 link attention type and translate it 3041 * into the base driver's link attention type coding. 3042 * 3043 * Return: Link attention type in terms of base driver's coding. 3044 **/ 3045 static uint8_t 3046 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3047 struct lpfc_acqe_link *acqe_link) 3048 { 3049 uint8_t att_type; 3050 3051 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3052 case LPFC_ASYNC_LINK_STATUS_DOWN: 3053 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3054 att_type = AT_LINK_DOWN; 3055 break; 3056 case LPFC_ASYNC_LINK_STATUS_UP: 3057 /* Ignore physical link up events - wait for logical link up */ 3058 att_type = AT_RESERVED; 3059 break; 3060 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3061 att_type = AT_LINK_UP; 3062 break; 3063 default: 3064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3065 "0399 Invalid link attention type: x%x\n", 3066 bf_get(lpfc_acqe_link_status, acqe_link)); 3067 att_type = AT_RESERVED; 3068 break; 3069 } 3070 return att_type; 3071 } 3072 3073 /** 3074 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3075 * @phba: pointer to lpfc hba data structure. 3076 * @acqe_link: pointer to the async link completion queue entry. 3077 * 3078 * This routine is to parse the SLI4 link-attention link speed and translate 3079 * it into the base driver's link-attention link speed coding. 3080 * 3081 * Return: Link-attention link speed in terms of base driver's coding. 3082 **/ 3083 static uint8_t 3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3085 struct lpfc_acqe_link *acqe_link) 3086 { 3087 uint8_t link_speed; 3088 3089 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3090 case LPFC_ASYNC_LINK_SPEED_ZERO: 3091 link_speed = LA_UNKNW_LINK; 3092 break; 3093 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3094 link_speed = LA_UNKNW_LINK; 3095 break; 3096 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3097 link_speed = LA_UNKNW_LINK; 3098 break; 3099 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3100 link_speed = LA_1GHZ_LINK; 3101 break; 3102 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3103 link_speed = LA_10GHZ_LINK; 3104 break; 3105 default: 3106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3107 "0483 Invalid link-attention link speed: x%x\n", 3108 bf_get(lpfc_acqe_link_speed, acqe_link)); 3109 link_speed = LA_UNKNW_LINK; 3110 break; 3111 } 3112 return link_speed; 3113 } 3114 3115 /** 3116 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3117 * @phba: pointer to lpfc hba data structure. 3118 * @acqe_link: pointer to the async link completion queue entry. 3119 * 3120 * This routine is to handle the SLI4 asynchronous link event. 3121 **/ 3122 static void 3123 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3124 struct lpfc_acqe_link *acqe_link) 3125 { 3126 struct lpfc_dmabuf *mp; 3127 LPFC_MBOXQ_t *pmb; 3128 MAILBOX_t *mb; 3129 READ_LA_VAR *la; 3130 uint8_t att_type; 3131 3132 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3133 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3134 return; 3135 phba->fcoe_eventtag = acqe_link->event_tag; 3136 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3137 if (!pmb) { 3138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3139 "0395 The mboxq allocation failed\n"); 3140 return; 3141 } 3142 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3143 if (!mp) { 3144 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3145 "0396 The lpfc_dmabuf allocation failed\n"); 3146 goto out_free_pmb; 3147 } 3148 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3149 if (!mp->virt) { 3150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3151 "0397 The mbuf allocation failed\n"); 3152 goto out_free_dmabuf; 3153 } 3154 3155 /* Cleanup any outstanding ELS commands */ 3156 lpfc_els_flush_all_cmd(phba); 3157 3158 /* Block ELS IOCBs until we have done process link event */ 3159 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3160 3161 /* Update link event statistics */ 3162 phba->sli.slistat.link_event++; 3163 3164 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3165 lpfc_read_la(phba, pmb, mp); 3166 pmb->vport = phba->pport; 3167 3168 /* Parse and translate status field */ 3169 mb = &pmb->u.mb; 3170 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3171 3172 /* Parse and translate link attention fields */ 3173 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3174 la->eventTag = acqe_link->event_tag; 3175 la->attType = att_type; 3176 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3177 3178 /* Fake the the following irrelvant fields */ 3179 la->topology = TOPOLOGY_PT_PT; 3180 la->granted_AL_PA = 0; 3181 la->il = 0; 3182 la->pb = 0; 3183 la->fa = 0; 3184 la->mm = 0; 3185 3186 /* Keep the link status for extra SLI4 state machine reference */ 3187 phba->sli4_hba.link_state.speed = 3188 bf_get(lpfc_acqe_link_speed, acqe_link); 3189 phba->sli4_hba.link_state.duplex = 3190 bf_get(lpfc_acqe_link_duplex, acqe_link); 3191 phba->sli4_hba.link_state.status = 3192 bf_get(lpfc_acqe_link_status, acqe_link); 3193 phba->sli4_hba.link_state.physical = 3194 bf_get(lpfc_acqe_link_physical, acqe_link); 3195 phba->sli4_hba.link_state.fault = 3196 bf_get(lpfc_acqe_link_fault, acqe_link); 3197 phba->sli4_hba.link_state.logical_speed = 3198 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3199 3200 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3201 lpfc_mbx_cmpl_read_la(phba, pmb); 3202 3203 return; 3204 3205 out_free_dmabuf: 3206 kfree(mp); 3207 out_free_pmb: 3208 mempool_free(pmb, phba->mbox_mem_pool); 3209 } 3210 3211 /** 3212 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3213 * @vport: pointer to vport data structure. 3214 * 3215 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3216 * response to a CVL event. 3217 * 3218 * Return the pointer to the ndlp with the vport if successful, otherwise 3219 * return NULL. 3220 **/ 3221 static struct lpfc_nodelist * 3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3223 { 3224 struct lpfc_nodelist *ndlp; 3225 struct Scsi_Host *shost; 3226 struct lpfc_hba *phba; 3227 3228 if (!vport) 3229 return NULL; 3230 phba = vport->phba; 3231 if (!phba) 3232 return NULL; 3233 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3234 if (!ndlp) { 3235 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3236 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3237 if (!ndlp) 3238 return 0; 3239 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3240 /* Set the node type */ 3241 ndlp->nlp_type |= NLP_FABRIC; 3242 /* Put ndlp onto node list */ 3243 lpfc_enqueue_node(vport, ndlp); 3244 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3245 /* re-setup ndlp without removing from node list */ 3246 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3247 if (!ndlp) 3248 return 0; 3249 } 3250 if (phba->pport->port_state < LPFC_FLOGI) 3251 return NULL; 3252 /* If virtual link is not yet instantiated ignore CVL */ 3253 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)) 3254 return NULL; 3255 shost = lpfc_shost_from_vport(vport); 3256 if (!shost) 3257 return NULL; 3258 lpfc_linkdown_port(vport); 3259 lpfc_cleanup_pending_mbox(vport); 3260 spin_lock_irq(shost->host_lock); 3261 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3262 spin_unlock_irq(shost->host_lock); 3263 3264 return ndlp; 3265 } 3266 3267 /** 3268 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3269 * @vport: pointer to lpfc hba data structure. 3270 * 3271 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3272 * response to a FCF dead event. 3273 **/ 3274 static void 3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3276 { 3277 struct lpfc_vport **vports; 3278 int i; 3279 3280 vports = lpfc_create_vport_work_array(phba); 3281 if (vports) 3282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3283 lpfc_sli4_perform_vport_cvl(vports[i]); 3284 lpfc_destroy_vport_work_array(phba, vports); 3285 } 3286 3287 /** 3288 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3289 * @phba: pointer to lpfc hba data structure. 3290 * @acqe_link: pointer to the async fcoe completion queue entry. 3291 * 3292 * This routine is to handle the SLI4 asynchronous fcoe event. 3293 **/ 3294 static void 3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3296 struct lpfc_acqe_fcoe *acqe_fcoe) 3297 { 3298 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3299 int rc; 3300 struct lpfc_vport *vport; 3301 struct lpfc_nodelist *ndlp; 3302 struct Scsi_Host *shost; 3303 int active_vlink_present; 3304 struct lpfc_vport **vports; 3305 int i; 3306 3307 phba->fc_eventTag = acqe_fcoe->event_tag; 3308 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3309 switch (event_type) { 3310 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3311 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3312 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3313 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3314 LOG_DISCOVERY, 3315 "2546 New FCF event, evt_tag:x%x, " 3316 "index:x%x\n", 3317 acqe_fcoe->event_tag, 3318 acqe_fcoe->index); 3319 else 3320 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3321 LOG_DISCOVERY, 3322 "2788 FCF param modified event, " 3323 "evt_tag:x%x, index:x%x\n", 3324 acqe_fcoe->event_tag, 3325 acqe_fcoe->index); 3326 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3327 /* 3328 * During period of FCF discovery, read the FCF 3329 * table record indexed by the event to update 3330 * FCF roundrobin failover eligible FCF bmask. 3331 */ 3332 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3333 LOG_DISCOVERY, 3334 "2779 Read FCF (x%x) for updating " 3335 "roundrobin FCF failover bmask\n", 3336 acqe_fcoe->index); 3337 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3338 } 3339 3340 /* If the FCF discovery is in progress, do nothing. */ 3341 spin_lock_irq(&phba->hbalock); 3342 if (phba->hba_flag & FCF_TS_INPROG) { 3343 spin_unlock_irq(&phba->hbalock); 3344 break; 3345 } 3346 /* If fast FCF failover rescan event is pending, do nothing */ 3347 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3348 spin_unlock_irq(&phba->hbalock); 3349 break; 3350 } 3351 3352 /* If the FCF has been in discovered state, do nothing. */ 3353 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3354 spin_unlock_irq(&phba->hbalock); 3355 break; 3356 } 3357 spin_unlock_irq(&phba->hbalock); 3358 3359 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3360 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3361 "2770 Start FCF table scan per async FCF " 3362 "event, evt_tag:x%x, index:x%x\n", 3363 acqe_fcoe->event_tag, acqe_fcoe->index); 3364 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3365 LPFC_FCOE_FCF_GET_FIRST); 3366 if (rc) 3367 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3368 "2547 Issue FCF scan read FCF mailbox " 3369 "command failed (x%x)\n", rc); 3370 break; 3371 3372 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3374 "2548 FCF Table full count 0x%x tag 0x%x\n", 3375 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3376 acqe_fcoe->event_tag); 3377 break; 3378 3379 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3380 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3381 "2549 FCF (x%x) disconnected from network, " 3382 "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3383 /* 3384 * If we are in the middle of FCF failover process, clear 3385 * the corresponding FCF bit in the roundrobin bitmap. 3386 */ 3387 spin_lock_irq(&phba->hbalock); 3388 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3389 spin_unlock_irq(&phba->hbalock); 3390 /* Update FLOGI FCF failover eligible FCF bmask */ 3391 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3392 break; 3393 } 3394 spin_unlock_irq(&phba->hbalock); 3395 3396 /* If the event is not for currently used fcf do nothing */ 3397 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3398 break; 3399 3400 /* 3401 * Otherwise, request the port to rediscover the entire FCF 3402 * table for a fast recovery from case that the current FCF 3403 * is no longer valid as we are not in the middle of FCF 3404 * failover process already. 3405 */ 3406 spin_lock_irq(&phba->hbalock); 3407 /* Mark the fast failover process in progress */ 3408 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3409 spin_unlock_irq(&phba->hbalock); 3410 3411 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3412 "2771 Start FCF fast failover process due to " 3413 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3414 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3415 rc = lpfc_sli4_redisc_fcf_table(phba); 3416 if (rc) { 3417 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3418 LOG_DISCOVERY, 3419 "2772 Issue FCF rediscover mabilbox " 3420 "command failed, fail through to FCF " 3421 "dead event\n"); 3422 spin_lock_irq(&phba->hbalock); 3423 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3424 spin_unlock_irq(&phba->hbalock); 3425 /* 3426 * Last resort will fail over by treating this 3427 * as a link down to FCF registration. 3428 */ 3429 lpfc_sli4_fcf_dead_failthrough(phba); 3430 } else { 3431 /* Reset FCF roundrobin bmask for new discovery */ 3432 memset(phba->fcf.fcf_rr_bmask, 0, 3433 sizeof(*phba->fcf.fcf_rr_bmask)); 3434 /* 3435 * Handling fast FCF failover to a DEAD FCF event is 3436 * considered equalivant to receiving CVL to all vports. 3437 */ 3438 lpfc_sli4_perform_all_vport_cvl(phba); 3439 } 3440 break; 3441 case LPFC_FCOE_EVENT_TYPE_CVL: 3442 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3443 "2718 Clear Virtual Link Received for VPI 0x%x" 3444 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3445 vport = lpfc_find_vport_by_vpid(phba, 3446 acqe_fcoe->index - phba->vpi_base); 3447 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3448 if (!ndlp) 3449 break; 3450 active_vlink_present = 0; 3451 3452 vports = lpfc_create_vport_work_array(phba); 3453 if (vports) { 3454 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3455 i++) { 3456 if ((!(vports[i]->fc_flag & 3457 FC_VPORT_CVL_RCVD)) && 3458 (vports[i]->port_state > LPFC_FDISC)) { 3459 active_vlink_present = 1; 3460 break; 3461 } 3462 } 3463 lpfc_destroy_vport_work_array(phba, vports); 3464 } 3465 3466 if (active_vlink_present) { 3467 /* 3468 * If there are other active VLinks present, 3469 * re-instantiate the Vlink using FDISC. 3470 */ 3471 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3472 shost = lpfc_shost_from_vport(vport); 3473 spin_lock_irq(shost->host_lock); 3474 ndlp->nlp_flag |= NLP_DELAY_TMO; 3475 spin_unlock_irq(shost->host_lock); 3476 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3477 vport->port_state = LPFC_FDISC; 3478 } else { 3479 /* 3480 * Otherwise, we request port to rediscover 3481 * the entire FCF table for a fast recovery 3482 * from possible case that the current FCF 3483 * is no longer valid if we are not already 3484 * in the FCF failover process. 3485 */ 3486 spin_lock_irq(&phba->hbalock); 3487 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3488 spin_unlock_irq(&phba->hbalock); 3489 break; 3490 } 3491 /* Mark the fast failover process in progress */ 3492 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3493 spin_unlock_irq(&phba->hbalock); 3494 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3495 LOG_DISCOVERY, 3496 "2773 Start FCF failover per CVL, " 3497 "evt_tag:x%x\n", acqe_fcoe->event_tag); 3498 rc = lpfc_sli4_redisc_fcf_table(phba); 3499 if (rc) { 3500 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3501 LOG_DISCOVERY, 3502 "2774 Issue FCF rediscover " 3503 "mabilbox command failed, " 3504 "through to CVL event\n"); 3505 spin_lock_irq(&phba->hbalock); 3506 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3507 spin_unlock_irq(&phba->hbalock); 3508 /* 3509 * Last resort will be re-try on the 3510 * the current registered FCF entry. 3511 */ 3512 lpfc_retry_pport_discovery(phba); 3513 } else 3514 /* 3515 * Reset FCF roundrobin bmask for new 3516 * discovery. 3517 */ 3518 memset(phba->fcf.fcf_rr_bmask, 0, 3519 sizeof(*phba->fcf.fcf_rr_bmask)); 3520 } 3521 break; 3522 default: 3523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3524 "0288 Unknown FCoE event type 0x%x event tag " 3525 "0x%x\n", event_type, acqe_fcoe->event_tag); 3526 break; 3527 } 3528 } 3529 3530 /** 3531 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3532 * @phba: pointer to lpfc hba data structure. 3533 * @acqe_link: pointer to the async dcbx completion queue entry. 3534 * 3535 * This routine is to handle the SLI4 asynchronous dcbx event. 3536 **/ 3537 static void 3538 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3539 struct lpfc_acqe_dcbx *acqe_dcbx) 3540 { 3541 phba->fc_eventTag = acqe_dcbx->event_tag; 3542 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3543 "0290 The SLI4 DCBX asynchronous event is not " 3544 "handled yet\n"); 3545 } 3546 3547 /** 3548 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3549 * @phba: pointer to lpfc hba data structure. 3550 * @acqe_link: pointer to the async grp5 completion queue entry. 3551 * 3552 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3553 * is an asynchronous notified of a logical link speed change. The Port 3554 * reports the logical link speed in units of 10Mbps. 3555 **/ 3556 static void 3557 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3558 struct lpfc_acqe_grp5 *acqe_grp5) 3559 { 3560 uint16_t prev_ll_spd; 3561 3562 phba->fc_eventTag = acqe_grp5->event_tag; 3563 phba->fcoe_eventtag = acqe_grp5->event_tag; 3564 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3565 phba->sli4_hba.link_state.logical_speed = 3566 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3567 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3568 "2789 GRP5 Async Event: Updating logical link speed " 3569 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3570 (phba->sli4_hba.link_state.logical_speed*10)); 3571 } 3572 3573 /** 3574 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3575 * @phba: pointer to lpfc hba data structure. 3576 * 3577 * This routine is invoked by the worker thread to process all the pending 3578 * SLI4 asynchronous events. 3579 **/ 3580 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3581 { 3582 struct lpfc_cq_event *cq_event; 3583 3584 /* First, declare the async event has been handled */ 3585 spin_lock_irq(&phba->hbalock); 3586 phba->hba_flag &= ~ASYNC_EVENT; 3587 spin_unlock_irq(&phba->hbalock); 3588 /* Now, handle all the async events */ 3589 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3590 /* Get the first event from the head of the event queue */ 3591 spin_lock_irq(&phba->hbalock); 3592 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3593 cq_event, struct lpfc_cq_event, list); 3594 spin_unlock_irq(&phba->hbalock); 3595 /* Process the asynchronous event */ 3596 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3597 case LPFC_TRAILER_CODE_LINK: 3598 lpfc_sli4_async_link_evt(phba, 3599 &cq_event->cqe.acqe_link); 3600 break; 3601 case LPFC_TRAILER_CODE_FCOE: 3602 lpfc_sli4_async_fcoe_evt(phba, 3603 &cq_event->cqe.acqe_fcoe); 3604 break; 3605 case LPFC_TRAILER_CODE_DCBX: 3606 lpfc_sli4_async_dcbx_evt(phba, 3607 &cq_event->cqe.acqe_dcbx); 3608 break; 3609 case LPFC_TRAILER_CODE_GRP5: 3610 lpfc_sli4_async_grp5_evt(phba, 3611 &cq_event->cqe.acqe_grp5); 3612 break; 3613 default: 3614 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3615 "1804 Invalid asynchrous event code: " 3616 "x%x\n", bf_get(lpfc_trailer_code, 3617 &cq_event->cqe.mcqe_cmpl)); 3618 break; 3619 } 3620 /* Free the completion event processed to the free pool */ 3621 lpfc_sli4_cq_event_release(phba, cq_event); 3622 } 3623 } 3624 3625 /** 3626 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3627 * @phba: pointer to lpfc hba data structure. 3628 * 3629 * This routine is invoked by the worker thread to process FCF table 3630 * rediscovery pending completion event. 3631 **/ 3632 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3633 { 3634 int rc; 3635 3636 spin_lock_irq(&phba->hbalock); 3637 /* Clear FCF rediscovery timeout event */ 3638 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3639 /* Clear driver fast failover FCF record flag */ 3640 phba->fcf.failover_rec.flag = 0; 3641 /* Set state for FCF fast failover */ 3642 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3643 spin_unlock_irq(&phba->hbalock); 3644 3645 /* Scan FCF table from the first entry to re-discover SAN */ 3646 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3647 "2777 Start post-quiescent FCF table scan\n"); 3648 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3649 if (rc) 3650 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3651 "2747 Issue FCF scan read FCF mailbox " 3652 "command failed 0x%x\n", rc); 3653 } 3654 3655 /** 3656 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3657 * @phba: pointer to lpfc hba data structure. 3658 * @dev_grp: The HBA PCI-Device group number. 3659 * 3660 * This routine is invoked to set up the per HBA PCI-Device group function 3661 * API jump table entries. 3662 * 3663 * Return: 0 if success, otherwise -ENODEV 3664 **/ 3665 int 3666 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3667 { 3668 int rc; 3669 3670 /* Set up lpfc PCI-device group */ 3671 phba->pci_dev_grp = dev_grp; 3672 3673 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3674 if (dev_grp == LPFC_PCI_DEV_OC) 3675 phba->sli_rev = LPFC_SLI_REV4; 3676 3677 /* Set up device INIT API function jump table */ 3678 rc = lpfc_init_api_table_setup(phba, dev_grp); 3679 if (rc) 3680 return -ENODEV; 3681 /* Set up SCSI API function jump table */ 3682 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3683 if (rc) 3684 return -ENODEV; 3685 /* Set up SLI API function jump table */ 3686 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3687 if (rc) 3688 return -ENODEV; 3689 /* Set up MBOX API function jump table */ 3690 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3691 if (rc) 3692 return -ENODEV; 3693 3694 return 0; 3695 } 3696 3697 /** 3698 * lpfc_log_intr_mode - Log the active interrupt mode 3699 * @phba: pointer to lpfc hba data structure. 3700 * @intr_mode: active interrupt mode adopted. 3701 * 3702 * This routine it invoked to log the currently used active interrupt mode 3703 * to the device. 3704 **/ 3705 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3706 { 3707 switch (intr_mode) { 3708 case 0: 3709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3710 "0470 Enable INTx interrupt mode.\n"); 3711 break; 3712 case 1: 3713 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3714 "0481 Enabled MSI interrupt mode.\n"); 3715 break; 3716 case 2: 3717 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3718 "0480 Enabled MSI-X interrupt mode.\n"); 3719 break; 3720 default: 3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3722 "0482 Illegal interrupt mode.\n"); 3723 break; 3724 } 3725 return; 3726 } 3727 3728 /** 3729 * lpfc_enable_pci_dev - Enable a generic PCI device. 3730 * @phba: pointer to lpfc hba data structure. 3731 * 3732 * This routine is invoked to enable the PCI device that is common to all 3733 * PCI devices. 3734 * 3735 * Return codes 3736 * 0 - successful 3737 * other values - error 3738 **/ 3739 static int 3740 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3741 { 3742 struct pci_dev *pdev; 3743 int bars; 3744 3745 /* Obtain PCI device reference */ 3746 if (!phba->pcidev) 3747 goto out_error; 3748 else 3749 pdev = phba->pcidev; 3750 /* Select PCI BARs */ 3751 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3752 /* Enable PCI device */ 3753 if (pci_enable_device_mem(pdev)) 3754 goto out_error; 3755 /* Request PCI resource for the device */ 3756 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3757 goto out_disable_device; 3758 /* Set up device as PCI master and save state for EEH */ 3759 pci_set_master(pdev); 3760 pci_try_set_mwi(pdev); 3761 pci_save_state(pdev); 3762 3763 return 0; 3764 3765 out_disable_device: 3766 pci_disable_device(pdev); 3767 out_error: 3768 return -ENODEV; 3769 } 3770 3771 /** 3772 * lpfc_disable_pci_dev - Disable a generic PCI device. 3773 * @phba: pointer to lpfc hba data structure. 3774 * 3775 * This routine is invoked to disable the PCI device that is common to all 3776 * PCI devices. 3777 **/ 3778 static void 3779 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3780 { 3781 struct pci_dev *pdev; 3782 int bars; 3783 3784 /* Obtain PCI device reference */ 3785 if (!phba->pcidev) 3786 return; 3787 else 3788 pdev = phba->pcidev; 3789 /* Select PCI BARs */ 3790 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3791 /* Release PCI resource and disable PCI device */ 3792 pci_release_selected_regions(pdev, bars); 3793 pci_disable_device(pdev); 3794 /* Null out PCI private reference to driver */ 3795 pci_set_drvdata(pdev, NULL); 3796 3797 return; 3798 } 3799 3800 /** 3801 * lpfc_reset_hba - Reset a hba 3802 * @phba: pointer to lpfc hba data structure. 3803 * 3804 * This routine is invoked to reset a hba device. It brings the HBA 3805 * offline, performs a board restart, and then brings the board back 3806 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3807 * on outstanding mailbox commands. 3808 **/ 3809 void 3810 lpfc_reset_hba(struct lpfc_hba *phba) 3811 { 3812 /* If resets are disabled then set error state and return. */ 3813 if (!phba->cfg_enable_hba_reset) { 3814 phba->link_state = LPFC_HBA_ERROR; 3815 return; 3816 } 3817 lpfc_offline_prep(phba); 3818 lpfc_offline(phba); 3819 lpfc_sli_brdrestart(phba); 3820 lpfc_online(phba); 3821 lpfc_unblock_mgmt_io(phba); 3822 } 3823 3824 /** 3825 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3826 * @phba: pointer to lpfc hba data structure. 3827 * 3828 * This routine is invoked to set up the driver internal resources specific to 3829 * support the SLI-3 HBA device it attached to. 3830 * 3831 * Return codes 3832 * 0 - successful 3833 * other values - error 3834 **/ 3835 static int 3836 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3837 { 3838 struct lpfc_sli *psli; 3839 3840 /* 3841 * Initialize timers used by driver 3842 */ 3843 3844 /* Heartbeat timer */ 3845 init_timer(&phba->hb_tmofunc); 3846 phba->hb_tmofunc.function = lpfc_hb_timeout; 3847 phba->hb_tmofunc.data = (unsigned long)phba; 3848 3849 psli = &phba->sli; 3850 /* MBOX heartbeat timer */ 3851 init_timer(&psli->mbox_tmo); 3852 psli->mbox_tmo.function = lpfc_mbox_timeout; 3853 psli->mbox_tmo.data = (unsigned long) phba; 3854 /* FCP polling mode timer */ 3855 init_timer(&phba->fcp_poll_timer); 3856 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3857 phba->fcp_poll_timer.data = (unsigned long) phba; 3858 /* Fabric block timer */ 3859 init_timer(&phba->fabric_block_timer); 3860 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3861 phba->fabric_block_timer.data = (unsigned long) phba; 3862 /* EA polling mode timer */ 3863 init_timer(&phba->eratt_poll); 3864 phba->eratt_poll.function = lpfc_poll_eratt; 3865 phba->eratt_poll.data = (unsigned long) phba; 3866 3867 /* Host attention work mask setup */ 3868 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3869 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3870 3871 /* Get all the module params for configuring this host */ 3872 lpfc_get_cfgparam(phba); 3873 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3874 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3875 /* check for menlo minimum sg count */ 3876 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3877 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3878 } 3879 3880 /* 3881 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3882 * used to create the sg_dma_buf_pool must be dynamically calculated. 3883 * 2 segments are added since the IOCB needs a command and response bde. 3884 */ 3885 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3886 sizeof(struct fcp_rsp) + 3887 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3888 3889 if (phba->cfg_enable_bg) { 3890 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3891 phba->cfg_sg_dma_buf_size += 3892 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3893 } 3894 3895 /* Also reinitialize the host templates with new values. */ 3896 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3897 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3898 3899 phba->max_vpi = LPFC_MAX_VPI; 3900 /* This will be set to correct value after config_port mbox */ 3901 phba->max_vports = 0; 3902 3903 /* 3904 * Initialize the SLI Layer to run with lpfc HBAs. 3905 */ 3906 lpfc_sli_setup(phba); 3907 lpfc_sli_queue_setup(phba); 3908 3909 /* Allocate device driver memory */ 3910 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3911 return -ENOMEM; 3912 3913 return 0; 3914 } 3915 3916 /** 3917 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3918 * @phba: pointer to lpfc hba data structure. 3919 * 3920 * This routine is invoked to unset the driver internal resources set up 3921 * specific for supporting the SLI-3 HBA device it attached to. 3922 **/ 3923 static void 3924 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3925 { 3926 /* Free device driver memory allocated */ 3927 lpfc_mem_free_all(phba); 3928 3929 return; 3930 } 3931 3932 /** 3933 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3934 * @phba: pointer to lpfc hba data structure. 3935 * 3936 * This routine is invoked to set up the driver internal resources specific to 3937 * support the SLI-4 HBA device it attached to. 3938 * 3939 * Return codes 3940 * 0 - successful 3941 * other values - error 3942 **/ 3943 static int 3944 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3945 { 3946 struct lpfc_sli *psli; 3947 LPFC_MBOXQ_t *mboxq; 3948 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3949 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3950 struct lpfc_mqe *mqe; 3951 int longs; 3952 3953 /* Before proceed, wait for POST done and device ready */ 3954 rc = lpfc_sli4_post_status_check(phba); 3955 if (rc) 3956 return -ENODEV; 3957 3958 /* 3959 * Initialize timers used by driver 3960 */ 3961 3962 /* Heartbeat timer */ 3963 init_timer(&phba->hb_tmofunc); 3964 phba->hb_tmofunc.function = lpfc_hb_timeout; 3965 phba->hb_tmofunc.data = (unsigned long)phba; 3966 3967 psli = &phba->sli; 3968 /* MBOX heartbeat timer */ 3969 init_timer(&psli->mbox_tmo); 3970 psli->mbox_tmo.function = lpfc_mbox_timeout; 3971 psli->mbox_tmo.data = (unsigned long) phba; 3972 /* Fabric block timer */ 3973 init_timer(&phba->fabric_block_timer); 3974 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3975 phba->fabric_block_timer.data = (unsigned long) phba; 3976 /* EA polling mode timer */ 3977 init_timer(&phba->eratt_poll); 3978 phba->eratt_poll.function = lpfc_poll_eratt; 3979 phba->eratt_poll.data = (unsigned long) phba; 3980 /* FCF rediscover timer */ 3981 init_timer(&phba->fcf.redisc_wait); 3982 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 3983 phba->fcf.redisc_wait.data = (unsigned long)phba; 3984 3985 /* 3986 * We need to do a READ_CONFIG mailbox command here before 3987 * calling lpfc_get_cfgparam. For VFs this will report the 3988 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3989 * All of the resources allocated 3990 * for this Port are tied to these values. 3991 */ 3992 /* Get all the module params for configuring this host */ 3993 lpfc_get_cfgparam(phba); 3994 phba->max_vpi = LPFC_MAX_VPI; 3995 /* This will be set to correct value after the read_config mbox */ 3996 phba->max_vports = 0; 3997 3998 /* Program the default value of vlan_id and fc_map */ 3999 phba->valid_vlan = 0; 4000 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4001 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4002 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4003 4004 /* 4005 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4006 * used to create the sg_dma_buf_pool must be dynamically calculated. 4007 * 2 segments are added since the IOCB needs a command and response bde. 4008 * To insure that the scsi sgl does not cross a 4k page boundary only 4009 * sgl sizes of must be a power of 2. 4010 */ 4011 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4012 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4013 /* Feature Level 1 hardware is limited to 2 pages */ 4014 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4015 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4016 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4017 else 4018 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4019 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4020 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4021 dma_buf_size = dma_buf_size << 1) 4022 ; 4023 if (dma_buf_size == max_buf_size) 4024 phba->cfg_sg_seg_cnt = (dma_buf_size - 4025 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4026 (2 * sizeof(struct sli4_sge))) / 4027 sizeof(struct sli4_sge); 4028 phba->cfg_sg_dma_buf_size = dma_buf_size; 4029 4030 /* Initialize buffer queue management fields */ 4031 hbq_count = lpfc_sli_hbq_count(); 4032 for (i = 0; i < hbq_count; ++i) 4033 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4034 INIT_LIST_HEAD(&phba->rb_pend_list); 4035 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4036 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4037 4038 /* 4039 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4040 */ 4041 /* Initialize the Abort scsi buffer list used by driver */ 4042 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4043 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4044 /* This abort list used by worker thread */ 4045 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4046 4047 /* 4048 * Initialize dirver internal slow-path work queues 4049 */ 4050 4051 /* Driver internel slow-path CQ Event pool */ 4052 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4053 /* Response IOCB work queue list */ 4054 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4055 /* Asynchronous event CQ Event work queue list */ 4056 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4057 /* Fast-path XRI aborted CQ Event work queue list */ 4058 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4059 /* Slow-path XRI aborted CQ Event work queue list */ 4060 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4061 /* Receive queue CQ Event work queue list */ 4062 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4063 4064 /* Initialize the driver internal SLI layer lists. */ 4065 lpfc_sli_setup(phba); 4066 lpfc_sli_queue_setup(phba); 4067 4068 /* Allocate device driver memory */ 4069 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4070 if (rc) 4071 return -ENOMEM; 4072 4073 /* Create the bootstrap mailbox command */ 4074 rc = lpfc_create_bootstrap_mbox(phba); 4075 if (unlikely(rc)) 4076 goto out_free_mem; 4077 4078 /* Set up the host's endian order with the device. */ 4079 rc = lpfc_setup_endian_order(phba); 4080 if (unlikely(rc)) 4081 goto out_free_bsmbx; 4082 4083 rc = lpfc_sli4_fw_cfg_check(phba); 4084 if (unlikely(rc)) 4085 goto out_free_bsmbx; 4086 4087 /* Set up the hba's configuration parameters. */ 4088 rc = lpfc_sli4_read_config(phba); 4089 if (unlikely(rc)) 4090 goto out_free_bsmbx; 4091 4092 /* Perform a function reset */ 4093 rc = lpfc_pci_function_reset(phba); 4094 if (unlikely(rc)) 4095 goto out_free_bsmbx; 4096 4097 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4098 GFP_KERNEL); 4099 if (!mboxq) { 4100 rc = -ENOMEM; 4101 goto out_free_bsmbx; 4102 } 4103 4104 /* Get the Supported Pages. It is always available. */ 4105 lpfc_supported_pages(mboxq); 4106 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4107 if (unlikely(rc)) { 4108 rc = -EIO; 4109 mempool_free(mboxq, phba->mbox_mem_pool); 4110 goto out_free_bsmbx; 4111 } 4112 4113 mqe = &mboxq->u.mqe; 4114 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4115 LPFC_MAX_SUPPORTED_PAGES); 4116 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4117 switch (pn_page[i]) { 4118 case LPFC_SLI4_PARAMETERS: 4119 phba->sli4_hba.pc_sli4_params.supported = 1; 4120 break; 4121 default: 4122 break; 4123 } 4124 } 4125 4126 /* Read the port's SLI4 Parameters capabilities if supported. */ 4127 if (phba->sli4_hba.pc_sli4_params.supported) 4128 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4129 mempool_free(mboxq, phba->mbox_mem_pool); 4130 if (rc) { 4131 rc = -EIO; 4132 goto out_free_bsmbx; 4133 } 4134 /* Create all the SLI4 queues */ 4135 rc = lpfc_sli4_queue_create(phba); 4136 if (rc) 4137 goto out_free_bsmbx; 4138 4139 /* Create driver internal CQE event pool */ 4140 rc = lpfc_sli4_cq_event_pool_create(phba); 4141 if (rc) 4142 goto out_destroy_queue; 4143 4144 /* Initialize and populate the iocb list per host */ 4145 rc = lpfc_init_sgl_list(phba); 4146 if (rc) { 4147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4148 "1400 Failed to initialize sgl list.\n"); 4149 goto out_destroy_cq_event_pool; 4150 } 4151 rc = lpfc_init_active_sgl_array(phba); 4152 if (rc) { 4153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4154 "1430 Failed to initialize sgl list.\n"); 4155 goto out_free_sgl_list; 4156 } 4157 4158 rc = lpfc_sli4_init_rpi_hdrs(phba); 4159 if (rc) { 4160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4161 "1432 Failed to initialize rpi headers.\n"); 4162 goto out_free_active_sgl; 4163 } 4164 4165 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4166 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4167 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4168 GFP_KERNEL); 4169 if (!phba->fcf.fcf_rr_bmask) { 4170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4171 "2759 Failed allocate memory for FCF round " 4172 "robin failover bmask\n"); 4173 goto out_remove_rpi_hdrs; 4174 } 4175 4176 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4177 phba->cfg_fcp_eq_count), GFP_KERNEL); 4178 if (!phba->sli4_hba.fcp_eq_hdl) { 4179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4180 "2572 Failed allocate memory for fast-path " 4181 "per-EQ handle array\n"); 4182 goto out_free_fcf_rr_bmask; 4183 } 4184 4185 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4186 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4187 if (!phba->sli4_hba.msix_entries) { 4188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4189 "2573 Failed allocate memory for msi-x " 4190 "interrupt vector entries\n"); 4191 goto out_free_fcp_eq_hdl; 4192 } 4193 4194 return rc; 4195 4196 out_free_fcp_eq_hdl: 4197 kfree(phba->sli4_hba.fcp_eq_hdl); 4198 out_free_fcf_rr_bmask: 4199 kfree(phba->fcf.fcf_rr_bmask); 4200 out_remove_rpi_hdrs: 4201 lpfc_sli4_remove_rpi_hdrs(phba); 4202 out_free_active_sgl: 4203 lpfc_free_active_sgl(phba); 4204 out_free_sgl_list: 4205 lpfc_free_sgl_list(phba); 4206 out_destroy_cq_event_pool: 4207 lpfc_sli4_cq_event_pool_destroy(phba); 4208 out_destroy_queue: 4209 lpfc_sli4_queue_destroy(phba); 4210 out_free_bsmbx: 4211 lpfc_destroy_bootstrap_mbox(phba); 4212 out_free_mem: 4213 lpfc_mem_free(phba); 4214 return rc; 4215 } 4216 4217 /** 4218 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4219 * @phba: pointer to lpfc hba data structure. 4220 * 4221 * This routine is invoked to unset the driver internal resources set up 4222 * specific for supporting the SLI-4 HBA device it attached to. 4223 **/ 4224 static void 4225 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4226 { 4227 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4228 4229 /* Free memory allocated for msi-x interrupt vector entries */ 4230 kfree(phba->sli4_hba.msix_entries); 4231 4232 /* Free memory allocated for fast-path work queue handles */ 4233 kfree(phba->sli4_hba.fcp_eq_hdl); 4234 4235 /* Free the allocated rpi headers. */ 4236 lpfc_sli4_remove_rpi_hdrs(phba); 4237 lpfc_sli4_remove_rpis(phba); 4238 4239 /* Free eligible FCF index bmask */ 4240 kfree(phba->fcf.fcf_rr_bmask); 4241 4242 /* Free the ELS sgl list */ 4243 lpfc_free_active_sgl(phba); 4244 lpfc_free_sgl_list(phba); 4245 4246 /* Free the SCSI sgl management array */ 4247 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4248 4249 /* Free the SLI4 queues */ 4250 lpfc_sli4_queue_destroy(phba); 4251 4252 /* Free the completion queue EQ event pool */ 4253 lpfc_sli4_cq_event_release_all(phba); 4254 lpfc_sli4_cq_event_pool_destroy(phba); 4255 4256 /* Free the bsmbx region. */ 4257 lpfc_destroy_bootstrap_mbox(phba); 4258 4259 /* Free the SLI Layer memory with SLI4 HBAs */ 4260 lpfc_mem_free_all(phba); 4261 4262 /* Free the current connect table */ 4263 list_for_each_entry_safe(conn_entry, next_conn_entry, 4264 &phba->fcf_conn_rec_list, list) { 4265 list_del_init(&conn_entry->list); 4266 kfree(conn_entry); 4267 } 4268 4269 return; 4270 } 4271 4272 /** 4273 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4274 * @phba: The hba struct for which this call is being executed. 4275 * @dev_grp: The HBA PCI-Device group number. 4276 * 4277 * This routine sets up the device INIT interface API function jump table 4278 * in @phba struct. 4279 * 4280 * Returns: 0 - success, -ENODEV - failure. 4281 **/ 4282 int 4283 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4284 { 4285 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4286 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4287 switch (dev_grp) { 4288 case LPFC_PCI_DEV_LP: 4289 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4290 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4291 phba->lpfc_stop_port = lpfc_stop_port_s3; 4292 break; 4293 case LPFC_PCI_DEV_OC: 4294 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4295 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4296 phba->lpfc_stop_port = lpfc_stop_port_s4; 4297 break; 4298 default: 4299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4300 "1431 Invalid HBA PCI-device group: 0x%x\n", 4301 dev_grp); 4302 return -ENODEV; 4303 break; 4304 } 4305 return 0; 4306 } 4307 4308 /** 4309 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4310 * @phba: pointer to lpfc hba data structure. 4311 * 4312 * This routine is invoked to set up the driver internal resources before the 4313 * device specific resource setup to support the HBA device it attached to. 4314 * 4315 * Return codes 4316 * 0 - successful 4317 * other values - error 4318 **/ 4319 static int 4320 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4321 { 4322 /* 4323 * Driver resources common to all SLI revisions 4324 */ 4325 atomic_set(&phba->fast_event_count, 0); 4326 spin_lock_init(&phba->hbalock); 4327 4328 /* Initialize ndlp management spinlock */ 4329 spin_lock_init(&phba->ndlp_lock); 4330 4331 INIT_LIST_HEAD(&phba->port_list); 4332 INIT_LIST_HEAD(&phba->work_list); 4333 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4334 4335 /* Initialize the wait queue head for the kernel thread */ 4336 init_waitqueue_head(&phba->work_waitq); 4337 4338 /* Initialize the scsi buffer list used by driver for scsi IO */ 4339 spin_lock_init(&phba->scsi_buf_list_lock); 4340 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4341 4342 /* Initialize the fabric iocb list */ 4343 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4344 4345 /* Initialize list to save ELS buffers */ 4346 INIT_LIST_HEAD(&phba->elsbuf); 4347 4348 /* Initialize FCF connection rec list */ 4349 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4350 4351 return 0; 4352 } 4353 4354 /** 4355 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4356 * @phba: pointer to lpfc hba data structure. 4357 * 4358 * This routine is invoked to set up the driver internal resources after the 4359 * device specific resource setup to support the HBA device it attached to. 4360 * 4361 * Return codes 4362 * 0 - successful 4363 * other values - error 4364 **/ 4365 static int 4366 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4367 { 4368 int error; 4369 4370 /* Startup the kernel thread for this host adapter. */ 4371 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4372 "lpfc_worker_%d", phba->brd_no); 4373 if (IS_ERR(phba->worker_thread)) { 4374 error = PTR_ERR(phba->worker_thread); 4375 return error; 4376 } 4377 4378 return 0; 4379 } 4380 4381 /** 4382 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4383 * @phba: pointer to lpfc hba data structure. 4384 * 4385 * This routine is invoked to unset the driver internal resources set up after 4386 * the device specific resource setup for supporting the HBA device it 4387 * attached to. 4388 **/ 4389 static void 4390 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4391 { 4392 /* Stop kernel worker thread */ 4393 kthread_stop(phba->worker_thread); 4394 } 4395 4396 /** 4397 * lpfc_free_iocb_list - Free iocb list. 4398 * @phba: pointer to lpfc hba data structure. 4399 * 4400 * This routine is invoked to free the driver's IOCB list and memory. 4401 **/ 4402 static void 4403 lpfc_free_iocb_list(struct lpfc_hba *phba) 4404 { 4405 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4406 4407 spin_lock_irq(&phba->hbalock); 4408 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4409 &phba->lpfc_iocb_list, list) { 4410 list_del(&iocbq_entry->list); 4411 kfree(iocbq_entry); 4412 phba->total_iocbq_bufs--; 4413 } 4414 spin_unlock_irq(&phba->hbalock); 4415 4416 return; 4417 } 4418 4419 /** 4420 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4421 * @phba: pointer to lpfc hba data structure. 4422 * 4423 * This routine is invoked to allocate and initizlize the driver's IOCB 4424 * list and set up the IOCB tag array accordingly. 4425 * 4426 * Return codes 4427 * 0 - successful 4428 * other values - error 4429 **/ 4430 static int 4431 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4432 { 4433 struct lpfc_iocbq *iocbq_entry = NULL; 4434 uint16_t iotag; 4435 int i; 4436 4437 /* Initialize and populate the iocb list per host. */ 4438 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4439 for (i = 0; i < iocb_count; i++) { 4440 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4441 if (iocbq_entry == NULL) { 4442 printk(KERN_ERR "%s: only allocated %d iocbs of " 4443 "expected %d count. Unloading driver.\n", 4444 __func__, i, LPFC_IOCB_LIST_CNT); 4445 goto out_free_iocbq; 4446 } 4447 4448 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4449 if (iotag == 0) { 4450 kfree(iocbq_entry); 4451 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4452 "Unloading driver.\n", __func__); 4453 goto out_free_iocbq; 4454 } 4455 iocbq_entry->sli4_xritag = NO_XRI; 4456 4457 spin_lock_irq(&phba->hbalock); 4458 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4459 phba->total_iocbq_bufs++; 4460 spin_unlock_irq(&phba->hbalock); 4461 } 4462 4463 return 0; 4464 4465 out_free_iocbq: 4466 lpfc_free_iocb_list(phba); 4467 4468 return -ENOMEM; 4469 } 4470 4471 /** 4472 * lpfc_free_sgl_list - Free sgl list. 4473 * @phba: pointer to lpfc hba data structure. 4474 * 4475 * This routine is invoked to free the driver's sgl list and memory. 4476 **/ 4477 static void 4478 lpfc_free_sgl_list(struct lpfc_hba *phba) 4479 { 4480 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4481 LIST_HEAD(sglq_list); 4482 4483 spin_lock_irq(&phba->hbalock); 4484 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4485 spin_unlock_irq(&phba->hbalock); 4486 4487 list_for_each_entry_safe(sglq_entry, sglq_next, 4488 &sglq_list, list) { 4489 list_del(&sglq_entry->list); 4490 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4491 kfree(sglq_entry); 4492 phba->sli4_hba.total_sglq_bufs--; 4493 } 4494 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4495 } 4496 4497 /** 4498 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4499 * @phba: pointer to lpfc hba data structure. 4500 * 4501 * This routine is invoked to allocate the driver's active sgl memory. 4502 * This array will hold the sglq_entry's for active IOs. 4503 **/ 4504 static int 4505 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4506 { 4507 int size; 4508 size = sizeof(struct lpfc_sglq *); 4509 size *= phba->sli4_hba.max_cfg_param.max_xri; 4510 4511 phba->sli4_hba.lpfc_sglq_active_list = 4512 kzalloc(size, GFP_KERNEL); 4513 if (!phba->sli4_hba.lpfc_sglq_active_list) 4514 return -ENOMEM; 4515 return 0; 4516 } 4517 4518 /** 4519 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4520 * @phba: pointer to lpfc hba data structure. 4521 * 4522 * This routine is invoked to walk through the array of active sglq entries 4523 * and free all of the resources. 4524 * This is just a place holder for now. 4525 **/ 4526 static void 4527 lpfc_free_active_sgl(struct lpfc_hba *phba) 4528 { 4529 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4530 } 4531 4532 /** 4533 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4534 * @phba: pointer to lpfc hba data structure. 4535 * 4536 * This routine is invoked to allocate and initizlize the driver's sgl 4537 * list and set up the sgl xritag tag array accordingly. 4538 * 4539 * Return codes 4540 * 0 - successful 4541 * other values - error 4542 **/ 4543 static int 4544 lpfc_init_sgl_list(struct lpfc_hba *phba) 4545 { 4546 struct lpfc_sglq *sglq_entry = NULL; 4547 int i; 4548 int els_xri_cnt; 4549 4550 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4552 "2400 lpfc_init_sgl_list els %d.\n", 4553 els_xri_cnt); 4554 /* Initialize and populate the sglq list per host/VF. */ 4555 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4556 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4557 4558 /* Sanity check on XRI management */ 4559 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4560 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4561 "2562 No room left for SCSI XRI allocation: " 4562 "max_xri=%d, els_xri=%d\n", 4563 phba->sli4_hba.max_cfg_param.max_xri, 4564 els_xri_cnt); 4565 return -ENOMEM; 4566 } 4567 4568 /* Allocate memory for the ELS XRI management array */ 4569 phba->sli4_hba.lpfc_els_sgl_array = 4570 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4571 GFP_KERNEL); 4572 4573 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4575 "2401 Failed to allocate memory for ELS " 4576 "XRI management array of size %d.\n", 4577 els_xri_cnt); 4578 return -ENOMEM; 4579 } 4580 4581 /* Keep the SCSI XRI into the XRI management array */ 4582 phba->sli4_hba.scsi_xri_max = 4583 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4584 phba->sli4_hba.scsi_xri_cnt = 0; 4585 4586 phba->sli4_hba.lpfc_scsi_psb_array = 4587 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4588 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4589 4590 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4591 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4592 "2563 Failed to allocate memory for SCSI " 4593 "XRI management array of size %d.\n", 4594 phba->sli4_hba.scsi_xri_max); 4595 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4596 return -ENOMEM; 4597 } 4598 4599 for (i = 0; i < els_xri_cnt; i++) { 4600 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4601 if (sglq_entry == NULL) { 4602 printk(KERN_ERR "%s: only allocated %d sgls of " 4603 "expected %d count. Unloading driver.\n", 4604 __func__, i, els_xri_cnt); 4605 goto out_free_mem; 4606 } 4607 4608 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4609 if (sglq_entry->sli4_xritag == NO_XRI) { 4610 kfree(sglq_entry); 4611 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4612 "Unloading driver.\n", __func__); 4613 goto out_free_mem; 4614 } 4615 sglq_entry->buff_type = GEN_BUFF_TYPE; 4616 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4617 if (sglq_entry->virt == NULL) { 4618 kfree(sglq_entry); 4619 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4620 "Unloading driver.\n", __func__); 4621 goto out_free_mem; 4622 } 4623 sglq_entry->sgl = sglq_entry->virt; 4624 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4625 4626 /* The list order is used by later block SGL registraton */ 4627 spin_lock_irq(&phba->hbalock); 4628 sglq_entry->state = SGL_FREED; 4629 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4630 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4631 phba->sli4_hba.total_sglq_bufs++; 4632 spin_unlock_irq(&phba->hbalock); 4633 } 4634 return 0; 4635 4636 out_free_mem: 4637 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4638 lpfc_free_sgl_list(phba); 4639 return -ENOMEM; 4640 } 4641 4642 /** 4643 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4644 * @phba: pointer to lpfc hba data structure. 4645 * 4646 * This routine is invoked to post rpi header templates to the 4647 * HBA consistent with the SLI-4 interface spec. This routine 4648 * posts a PAGE_SIZE memory region to the port to hold up to 4649 * PAGE_SIZE modulo 64 rpi context headers. 4650 * No locks are held here because this is an initialization routine 4651 * called only from probe or lpfc_online when interrupts are not 4652 * enabled and the driver is reinitializing the device. 4653 * 4654 * Return codes 4655 * 0 - successful 4656 * -ENOMEM - No availble memory 4657 * -EIO - The mailbox failed to complete successfully. 4658 **/ 4659 int 4660 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4661 { 4662 int rc = 0; 4663 int longs; 4664 uint16_t rpi_count; 4665 struct lpfc_rpi_hdr *rpi_hdr; 4666 4667 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4668 4669 /* 4670 * Provision an rpi bitmask range for discovery. The total count 4671 * is the difference between max and base + 1. 4672 */ 4673 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4674 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4675 4676 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4677 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4678 GFP_KERNEL); 4679 if (!phba->sli4_hba.rpi_bmask) 4680 return -ENOMEM; 4681 4682 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4683 if (!rpi_hdr) { 4684 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4685 "0391 Error during rpi post operation\n"); 4686 lpfc_sli4_remove_rpis(phba); 4687 rc = -ENODEV; 4688 } 4689 4690 return rc; 4691 } 4692 4693 /** 4694 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4695 * @phba: pointer to lpfc hba data structure. 4696 * 4697 * This routine is invoked to allocate a single 4KB memory region to 4698 * support rpis and stores them in the phba. This single region 4699 * provides support for up to 64 rpis. The region is used globally 4700 * by the device. 4701 * 4702 * Returns: 4703 * A valid rpi hdr on success. 4704 * A NULL pointer on any failure. 4705 **/ 4706 struct lpfc_rpi_hdr * 4707 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4708 { 4709 uint16_t rpi_limit, curr_rpi_range; 4710 struct lpfc_dmabuf *dmabuf; 4711 struct lpfc_rpi_hdr *rpi_hdr; 4712 4713 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4714 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4715 4716 spin_lock_irq(&phba->hbalock); 4717 curr_rpi_range = phba->sli4_hba.next_rpi; 4718 spin_unlock_irq(&phba->hbalock); 4719 4720 /* 4721 * The port has a limited number of rpis. The increment here 4722 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4723 * and to allow the full max_rpi range per port. 4724 */ 4725 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4726 return NULL; 4727 4728 /* 4729 * First allocate the protocol header region for the port. The 4730 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4731 */ 4732 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4733 if (!dmabuf) 4734 return NULL; 4735 4736 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4737 LPFC_HDR_TEMPLATE_SIZE, 4738 &dmabuf->phys, 4739 GFP_KERNEL); 4740 if (!dmabuf->virt) { 4741 rpi_hdr = NULL; 4742 goto err_free_dmabuf; 4743 } 4744 4745 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4746 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4747 rpi_hdr = NULL; 4748 goto err_free_coherent; 4749 } 4750 4751 /* Save the rpi header data for cleanup later. */ 4752 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4753 if (!rpi_hdr) 4754 goto err_free_coherent; 4755 4756 rpi_hdr->dmabuf = dmabuf; 4757 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4758 rpi_hdr->page_count = 1; 4759 spin_lock_irq(&phba->hbalock); 4760 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4761 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4762 4763 /* 4764 * The next_rpi stores the next module-64 rpi value to post 4765 * in any subsequent rpi memory region postings. 4766 */ 4767 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4768 spin_unlock_irq(&phba->hbalock); 4769 return rpi_hdr; 4770 4771 err_free_coherent: 4772 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4773 dmabuf->virt, dmabuf->phys); 4774 err_free_dmabuf: 4775 kfree(dmabuf); 4776 return NULL; 4777 } 4778 4779 /** 4780 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4781 * @phba: pointer to lpfc hba data structure. 4782 * 4783 * This routine is invoked to remove all memory resources allocated 4784 * to support rpis. This routine presumes the caller has released all 4785 * rpis consumed by fabric or port logins and is prepared to have 4786 * the header pages removed. 4787 **/ 4788 void 4789 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4790 { 4791 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4792 4793 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4794 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4795 list_del(&rpi_hdr->list); 4796 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4797 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4798 kfree(rpi_hdr->dmabuf); 4799 kfree(rpi_hdr); 4800 } 4801 4802 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4803 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4804 } 4805 4806 /** 4807 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4808 * @pdev: pointer to pci device data structure. 4809 * 4810 * This routine is invoked to allocate the driver hba data structure for an 4811 * HBA device. If the allocation is successful, the phba reference to the 4812 * PCI device data structure is set. 4813 * 4814 * Return codes 4815 * pointer to @phba - successful 4816 * NULL - error 4817 **/ 4818 static struct lpfc_hba * 4819 lpfc_hba_alloc(struct pci_dev *pdev) 4820 { 4821 struct lpfc_hba *phba; 4822 4823 /* Allocate memory for HBA structure */ 4824 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4825 if (!phba) { 4826 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4827 return NULL; 4828 } 4829 4830 /* Set reference to PCI device in HBA structure */ 4831 phba->pcidev = pdev; 4832 4833 /* Assign an unused board number */ 4834 phba->brd_no = lpfc_get_instance(); 4835 if (phba->brd_no < 0) { 4836 kfree(phba); 4837 return NULL; 4838 } 4839 4840 spin_lock_init(&phba->ct_ev_lock); 4841 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4842 4843 return phba; 4844 } 4845 4846 /** 4847 * lpfc_hba_free - Free driver hba data structure with a device. 4848 * @phba: pointer to lpfc hba data structure. 4849 * 4850 * This routine is invoked to free the driver hba data structure with an 4851 * HBA device. 4852 **/ 4853 static void 4854 lpfc_hba_free(struct lpfc_hba *phba) 4855 { 4856 /* Release the driver assigned board number */ 4857 idr_remove(&lpfc_hba_index, phba->brd_no); 4858 4859 kfree(phba); 4860 return; 4861 } 4862 4863 /** 4864 * lpfc_create_shost - Create hba physical port with associated scsi host. 4865 * @phba: pointer to lpfc hba data structure. 4866 * 4867 * This routine is invoked to create HBA physical port and associate a SCSI 4868 * host with it. 4869 * 4870 * Return codes 4871 * 0 - successful 4872 * other values - error 4873 **/ 4874 static int 4875 lpfc_create_shost(struct lpfc_hba *phba) 4876 { 4877 struct lpfc_vport *vport; 4878 struct Scsi_Host *shost; 4879 4880 /* Initialize HBA FC structure */ 4881 phba->fc_edtov = FF_DEF_EDTOV; 4882 phba->fc_ratov = FF_DEF_RATOV; 4883 phba->fc_altov = FF_DEF_ALTOV; 4884 phba->fc_arbtov = FF_DEF_ARBTOV; 4885 4886 atomic_set(&phba->sdev_cnt, 0); 4887 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4888 if (!vport) 4889 return -ENODEV; 4890 4891 shost = lpfc_shost_from_vport(vport); 4892 phba->pport = vport; 4893 lpfc_debugfs_initialize(vport); 4894 /* Put reference to SCSI host to driver's device private data */ 4895 pci_set_drvdata(phba->pcidev, shost); 4896 4897 return 0; 4898 } 4899 4900 /** 4901 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4902 * @phba: pointer to lpfc hba data structure. 4903 * 4904 * This routine is invoked to destroy HBA physical port and the associated 4905 * SCSI host. 4906 **/ 4907 static void 4908 lpfc_destroy_shost(struct lpfc_hba *phba) 4909 { 4910 struct lpfc_vport *vport = phba->pport; 4911 4912 /* Destroy physical port that associated with the SCSI host */ 4913 destroy_port(vport); 4914 4915 return; 4916 } 4917 4918 /** 4919 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4920 * @phba: pointer to lpfc hba data structure. 4921 * @shost: the shost to be used to detect Block guard settings. 4922 * 4923 * This routine sets up the local Block guard protocol settings for @shost. 4924 * This routine also allocates memory for debugging bg buffers. 4925 **/ 4926 static void 4927 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4928 { 4929 int pagecnt = 10; 4930 if (lpfc_prot_mask && lpfc_prot_guard) { 4931 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4932 "1478 Registering BlockGuard with the " 4933 "SCSI layer\n"); 4934 scsi_host_set_prot(shost, lpfc_prot_mask); 4935 scsi_host_set_guard(shost, lpfc_prot_guard); 4936 } 4937 if (!_dump_buf_data) { 4938 while (pagecnt) { 4939 spin_lock_init(&_dump_buf_lock); 4940 _dump_buf_data = 4941 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4942 if (_dump_buf_data) { 4943 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4944 "9043 BLKGRD: allocated %d pages for " 4945 "_dump_buf_data at 0x%p\n", 4946 (1 << pagecnt), _dump_buf_data); 4947 _dump_buf_data_order = pagecnt; 4948 memset(_dump_buf_data, 0, 4949 ((1 << PAGE_SHIFT) << pagecnt)); 4950 break; 4951 } else 4952 --pagecnt; 4953 } 4954 if (!_dump_buf_data_order) 4955 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4956 "9044 BLKGRD: ERROR unable to allocate " 4957 "memory for hexdump\n"); 4958 } else 4959 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4960 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4961 "\n", _dump_buf_data); 4962 if (!_dump_buf_dif) { 4963 while (pagecnt) { 4964 _dump_buf_dif = 4965 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4966 if (_dump_buf_dif) { 4967 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4968 "9046 BLKGRD: allocated %d pages for " 4969 "_dump_buf_dif at 0x%p\n", 4970 (1 << pagecnt), _dump_buf_dif); 4971 _dump_buf_dif_order = pagecnt; 4972 memset(_dump_buf_dif, 0, 4973 ((1 << PAGE_SHIFT) << pagecnt)); 4974 break; 4975 } else 4976 --pagecnt; 4977 } 4978 if (!_dump_buf_dif_order) 4979 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4980 "9047 BLKGRD: ERROR unable to allocate " 4981 "memory for hexdump\n"); 4982 } else 4983 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4984 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 4985 _dump_buf_dif); 4986 } 4987 4988 /** 4989 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4990 * @phba: pointer to lpfc hba data structure. 4991 * 4992 * This routine is invoked to perform all the necessary post initialization 4993 * setup for the device. 4994 **/ 4995 static void 4996 lpfc_post_init_setup(struct lpfc_hba *phba) 4997 { 4998 struct Scsi_Host *shost; 4999 struct lpfc_adapter_event_header adapter_event; 5000 5001 /* Get the default values for Model Name and Description */ 5002 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5003 5004 /* 5005 * hba setup may have changed the hba_queue_depth so we need to 5006 * adjust the value of can_queue. 5007 */ 5008 shost = pci_get_drvdata(phba->pcidev); 5009 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5010 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5011 lpfc_setup_bg(phba, shost); 5012 5013 lpfc_host_attrib_init(shost); 5014 5015 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5016 spin_lock_irq(shost->host_lock); 5017 lpfc_poll_start_timer(phba); 5018 spin_unlock_irq(shost->host_lock); 5019 } 5020 5021 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5022 "0428 Perform SCSI scan\n"); 5023 /* Send board arrival event to upper layer */ 5024 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5025 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5026 fc_host_post_vendor_event(shost, fc_get_event_number(), 5027 sizeof(adapter_event), 5028 (char *) &adapter_event, 5029 LPFC_NL_VENDOR_ID); 5030 return; 5031 } 5032 5033 /** 5034 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5035 * @phba: pointer to lpfc hba data structure. 5036 * 5037 * This routine is invoked to set up the PCI device memory space for device 5038 * with SLI-3 interface spec. 5039 * 5040 * Return codes 5041 * 0 - successful 5042 * other values - error 5043 **/ 5044 static int 5045 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5046 { 5047 struct pci_dev *pdev; 5048 unsigned long bar0map_len, bar2map_len; 5049 int i, hbq_count; 5050 void *ptr; 5051 int error = -ENODEV; 5052 5053 /* Obtain PCI device reference */ 5054 if (!phba->pcidev) 5055 return error; 5056 else 5057 pdev = phba->pcidev; 5058 5059 /* Set the device DMA mask size */ 5060 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5061 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5062 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5063 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5064 return error; 5065 } 5066 } 5067 5068 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5069 * required by each mapping. 5070 */ 5071 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5072 bar0map_len = pci_resource_len(pdev, 0); 5073 5074 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5075 bar2map_len = pci_resource_len(pdev, 2); 5076 5077 /* Map HBA SLIM to a kernel virtual address. */ 5078 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5079 if (!phba->slim_memmap_p) { 5080 dev_printk(KERN_ERR, &pdev->dev, 5081 "ioremap failed for SLIM memory.\n"); 5082 goto out; 5083 } 5084 5085 /* Map HBA Control Registers to a kernel virtual address. */ 5086 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5087 if (!phba->ctrl_regs_memmap_p) { 5088 dev_printk(KERN_ERR, &pdev->dev, 5089 "ioremap failed for HBA control registers.\n"); 5090 goto out_iounmap_slim; 5091 } 5092 5093 /* Allocate memory for SLI-2 structures */ 5094 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5095 SLI2_SLIM_SIZE, 5096 &phba->slim2p.phys, 5097 GFP_KERNEL); 5098 if (!phba->slim2p.virt) 5099 goto out_iounmap; 5100 5101 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5102 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5103 phba->mbox_ext = (phba->slim2p.virt + 5104 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5105 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5106 phba->IOCBs = (phba->slim2p.virt + 5107 offsetof(struct lpfc_sli2_slim, IOCBs)); 5108 5109 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5110 lpfc_sli_hbq_size(), 5111 &phba->hbqslimp.phys, 5112 GFP_KERNEL); 5113 if (!phba->hbqslimp.virt) 5114 goto out_free_slim; 5115 5116 hbq_count = lpfc_sli_hbq_count(); 5117 ptr = phba->hbqslimp.virt; 5118 for (i = 0; i < hbq_count; ++i) { 5119 phba->hbqs[i].hbq_virt = ptr; 5120 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5121 ptr += (lpfc_hbq_defs[i]->entry_count * 5122 sizeof(struct lpfc_hbq_entry)); 5123 } 5124 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5125 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5126 5127 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5128 5129 INIT_LIST_HEAD(&phba->rb_pend_list); 5130 5131 phba->MBslimaddr = phba->slim_memmap_p; 5132 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5133 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5134 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5135 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5136 5137 return 0; 5138 5139 out_free_slim: 5140 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5141 phba->slim2p.virt, phba->slim2p.phys); 5142 out_iounmap: 5143 iounmap(phba->ctrl_regs_memmap_p); 5144 out_iounmap_slim: 5145 iounmap(phba->slim_memmap_p); 5146 out: 5147 return error; 5148 } 5149 5150 /** 5151 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5152 * @phba: pointer to lpfc hba data structure. 5153 * 5154 * This routine is invoked to unset the PCI device memory space for device 5155 * with SLI-3 interface spec. 5156 **/ 5157 static void 5158 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5159 { 5160 struct pci_dev *pdev; 5161 5162 /* Obtain PCI device reference */ 5163 if (!phba->pcidev) 5164 return; 5165 else 5166 pdev = phba->pcidev; 5167 5168 /* Free coherent DMA memory allocated */ 5169 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5170 phba->hbqslimp.virt, phba->hbqslimp.phys); 5171 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5172 phba->slim2p.virt, phba->slim2p.phys); 5173 5174 /* I/O memory unmap */ 5175 iounmap(phba->ctrl_regs_memmap_p); 5176 iounmap(phba->slim_memmap_p); 5177 5178 return; 5179 } 5180 5181 /** 5182 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5183 * @phba: pointer to lpfc hba data structure. 5184 * 5185 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5186 * done and check status. 5187 * 5188 * Return 0 if successful, otherwise -ENODEV. 5189 **/ 5190 int 5191 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5192 { 5193 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5194 int i, port_error = -ENODEV; 5195 5196 if (!phba->sli4_hba.STAregaddr) 5197 return -ENODEV; 5198 5199 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5200 for (i = 0; i < 3000; i++) { 5201 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5202 /* Encounter fatal POST error, break out */ 5203 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5204 port_error = -ENODEV; 5205 break; 5206 } 5207 if (LPFC_POST_STAGE_ARMFW_READY == 5208 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5209 port_error = 0; 5210 break; 5211 } 5212 msleep(10); 5213 } 5214 5215 if (port_error) 5216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5217 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5218 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5219 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5220 bf_get(lpfc_hst_state_perr, &sta_reg), 5221 bf_get(lpfc_hst_state_sfi, &sta_reg), 5222 bf_get(lpfc_hst_state_nip, &sta_reg), 5223 bf_get(lpfc_hst_state_ipc, &sta_reg), 5224 bf_get(lpfc_hst_state_xrom, &sta_reg), 5225 bf_get(lpfc_hst_state_dl, &sta_reg), 5226 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5227 5228 /* Log device information */ 5229 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5230 if (bf_get(lpfc_sli_intf_valid, 5231 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5232 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5233 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5234 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5235 bf_get(lpfc_sli_intf_sli_family, 5236 &phba->sli4_hba.sli_intf), 5237 bf_get(lpfc_sli_intf_slirev, 5238 &phba->sli4_hba.sli_intf), 5239 bf_get(lpfc_sli_intf_featurelevel1, 5240 &phba->sli4_hba.sli_intf), 5241 bf_get(lpfc_sli_intf_featurelevel2, 5242 &phba->sli4_hba.sli_intf)); 5243 } 5244 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5245 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5246 /* With uncoverable error, log the error message and return error */ 5247 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5248 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5249 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5250 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5252 "1422 HBA Unrecoverable error: " 5253 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5254 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5255 uerrlo_reg.word0, uerrhi_reg.word0, 5256 phba->sli4_hba.ue_mask_lo, 5257 phba->sli4_hba.ue_mask_hi); 5258 return -ENODEV; 5259 } 5260 5261 return port_error; 5262 } 5263 5264 /** 5265 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5266 * @phba: pointer to lpfc hba data structure. 5267 * 5268 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5269 * memory map. 5270 **/ 5271 static void 5272 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5273 { 5274 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5275 LPFC_UERR_STATUS_LO; 5276 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5277 LPFC_UERR_STATUS_HI; 5278 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5279 LPFC_UE_MASK_LO; 5280 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5281 LPFC_UE_MASK_HI; 5282 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5283 LPFC_SLI_INTF; 5284 } 5285 5286 /** 5287 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5288 * @phba: pointer to lpfc hba data structure. 5289 * 5290 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5291 * memory map. 5292 **/ 5293 static void 5294 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5295 { 5296 5297 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5298 LPFC_HST_STATE; 5299 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5300 LPFC_HST_ISR0; 5301 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5302 LPFC_HST_IMR0; 5303 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5304 LPFC_HST_ISCR0; 5305 return; 5306 } 5307 5308 /** 5309 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5310 * @phba: pointer to lpfc hba data structure. 5311 * @vf: virtual function number 5312 * 5313 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5314 * based on the given viftual function number, @vf. 5315 * 5316 * Return 0 if successful, otherwise -ENODEV. 5317 **/ 5318 static int 5319 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5320 { 5321 if (vf > LPFC_VIR_FUNC_MAX) 5322 return -ENODEV; 5323 5324 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5325 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5326 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5327 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5328 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5329 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5330 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5331 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5332 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5333 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5334 return 0; 5335 } 5336 5337 /** 5338 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5339 * @phba: pointer to lpfc hba data structure. 5340 * 5341 * This routine is invoked to create the bootstrap mailbox 5342 * region consistent with the SLI-4 interface spec. This 5343 * routine allocates all memory necessary to communicate 5344 * mailbox commands to the port and sets up all alignment 5345 * needs. No locks are expected to be held when calling 5346 * this routine. 5347 * 5348 * Return codes 5349 * 0 - successful 5350 * -ENOMEM - could not allocated memory. 5351 **/ 5352 static int 5353 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5354 { 5355 uint32_t bmbx_size; 5356 struct lpfc_dmabuf *dmabuf; 5357 struct dma_address *dma_address; 5358 uint32_t pa_addr; 5359 uint64_t phys_addr; 5360 5361 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5362 if (!dmabuf) 5363 return -ENOMEM; 5364 5365 /* 5366 * The bootstrap mailbox region is comprised of 2 parts 5367 * plus an alignment restriction of 16 bytes. 5368 */ 5369 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5370 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5371 bmbx_size, 5372 &dmabuf->phys, 5373 GFP_KERNEL); 5374 if (!dmabuf->virt) { 5375 kfree(dmabuf); 5376 return -ENOMEM; 5377 } 5378 memset(dmabuf->virt, 0, bmbx_size); 5379 5380 /* 5381 * Initialize the bootstrap mailbox pointers now so that the register 5382 * operations are simple later. The mailbox dma address is required 5383 * to be 16-byte aligned. Also align the virtual memory as each 5384 * maibox is copied into the bmbx mailbox region before issuing the 5385 * command to the port. 5386 */ 5387 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5388 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5389 5390 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5391 LPFC_ALIGN_16_BYTE); 5392 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5393 LPFC_ALIGN_16_BYTE); 5394 5395 /* 5396 * Set the high and low physical addresses now. The SLI4 alignment 5397 * requirement is 16 bytes and the mailbox is posted to the port 5398 * as two 30-bit addresses. The other data is a bit marking whether 5399 * the 30-bit address is the high or low address. 5400 * Upcast bmbx aphys to 64bits so shift instruction compiles 5401 * clean on 32 bit machines. 5402 */ 5403 dma_address = &phba->sli4_hba.bmbx.dma_address; 5404 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5405 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5406 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5407 LPFC_BMBX_BIT1_ADDR_HI); 5408 5409 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5410 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5411 LPFC_BMBX_BIT1_ADDR_LO); 5412 return 0; 5413 } 5414 5415 /** 5416 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5417 * @phba: pointer to lpfc hba data structure. 5418 * 5419 * This routine is invoked to teardown the bootstrap mailbox 5420 * region and release all host resources. This routine requires 5421 * the caller to ensure all mailbox commands recovered, no 5422 * additional mailbox comands are sent, and interrupts are disabled 5423 * before calling this routine. 5424 * 5425 **/ 5426 static void 5427 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5428 { 5429 dma_free_coherent(&phba->pcidev->dev, 5430 phba->sli4_hba.bmbx.bmbx_size, 5431 phba->sli4_hba.bmbx.dmabuf->virt, 5432 phba->sli4_hba.bmbx.dmabuf->phys); 5433 5434 kfree(phba->sli4_hba.bmbx.dmabuf); 5435 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5436 } 5437 5438 /** 5439 * lpfc_sli4_read_config - Get the config parameters. 5440 * @phba: pointer to lpfc hba data structure. 5441 * 5442 * This routine is invoked to read the configuration parameters from the HBA. 5443 * The configuration parameters are used to set the base and maximum values 5444 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5445 * allocation for the port. 5446 * 5447 * Return codes 5448 * 0 - successful 5449 * -ENOMEM - No availble memory 5450 * -EIO - The mailbox failed to complete successfully. 5451 **/ 5452 static int 5453 lpfc_sli4_read_config(struct lpfc_hba *phba) 5454 { 5455 LPFC_MBOXQ_t *pmb; 5456 struct lpfc_mbx_read_config *rd_config; 5457 uint32_t rc = 0; 5458 5459 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5460 if (!pmb) { 5461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5462 "2011 Unable to allocate memory for issuing " 5463 "SLI_CONFIG_SPECIAL mailbox command\n"); 5464 return -ENOMEM; 5465 } 5466 5467 lpfc_read_config(phba, pmb); 5468 5469 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5470 if (rc != MBX_SUCCESS) { 5471 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5472 "2012 Mailbox failed , mbxCmd x%x " 5473 "READ_CONFIG, mbxStatus x%x\n", 5474 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5475 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5476 rc = -EIO; 5477 } else { 5478 rd_config = &pmb->u.mqe.un.rd_config; 5479 phba->sli4_hba.max_cfg_param.max_xri = 5480 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5481 phba->sli4_hba.max_cfg_param.xri_base = 5482 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5483 phba->sli4_hba.max_cfg_param.max_vpi = 5484 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5485 phba->sli4_hba.max_cfg_param.vpi_base = 5486 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5487 phba->sli4_hba.max_cfg_param.max_rpi = 5488 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5489 phba->sli4_hba.max_cfg_param.rpi_base = 5490 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5491 phba->sli4_hba.max_cfg_param.max_vfi = 5492 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5493 phba->sli4_hba.max_cfg_param.vfi_base = 5494 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5495 phba->sli4_hba.max_cfg_param.max_fcfi = 5496 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5497 phba->sli4_hba.max_cfg_param.fcfi_base = 5498 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5499 phba->sli4_hba.max_cfg_param.max_eq = 5500 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5501 phba->sli4_hba.max_cfg_param.max_rq = 5502 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5503 phba->sli4_hba.max_cfg_param.max_wq = 5504 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5505 phba->sli4_hba.max_cfg_param.max_cq = 5506 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5507 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5508 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5509 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5510 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5511 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5512 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5513 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5514 phba->max_vports = phba->max_vpi; 5515 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5516 "2003 cfg params XRI(B:%d M:%d), " 5517 "VPI(B:%d M:%d) " 5518 "VFI(B:%d M:%d) " 5519 "RPI(B:%d M:%d) " 5520 "FCFI(B:%d M:%d)\n", 5521 phba->sli4_hba.max_cfg_param.xri_base, 5522 phba->sli4_hba.max_cfg_param.max_xri, 5523 phba->sli4_hba.max_cfg_param.vpi_base, 5524 phba->sli4_hba.max_cfg_param.max_vpi, 5525 phba->sli4_hba.max_cfg_param.vfi_base, 5526 phba->sli4_hba.max_cfg_param.max_vfi, 5527 phba->sli4_hba.max_cfg_param.rpi_base, 5528 phba->sli4_hba.max_cfg_param.max_rpi, 5529 phba->sli4_hba.max_cfg_param.fcfi_base, 5530 phba->sli4_hba.max_cfg_param.max_fcfi); 5531 } 5532 mempool_free(pmb, phba->mbox_mem_pool); 5533 5534 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5535 if (phba->cfg_hba_queue_depth > 5536 (phba->sli4_hba.max_cfg_param.max_xri - 5537 lpfc_sli4_get_els_iocb_cnt(phba))) 5538 phba->cfg_hba_queue_depth = 5539 phba->sli4_hba.max_cfg_param.max_xri - 5540 lpfc_sli4_get_els_iocb_cnt(phba); 5541 return rc; 5542 } 5543 5544 /** 5545 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5546 * @phba: pointer to lpfc hba data structure. 5547 * 5548 * This routine is invoked to setup the host-side endian order to the 5549 * HBA consistent with the SLI-4 interface spec. 5550 * 5551 * Return codes 5552 * 0 - successful 5553 * -ENOMEM - No availble memory 5554 * -EIO - The mailbox failed to complete successfully. 5555 **/ 5556 static int 5557 lpfc_setup_endian_order(struct lpfc_hba *phba) 5558 { 5559 LPFC_MBOXQ_t *mboxq; 5560 uint32_t rc = 0; 5561 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5562 HOST_ENDIAN_HIGH_WORD1}; 5563 5564 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5565 if (!mboxq) { 5566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5567 "0492 Unable to allocate memory for issuing " 5568 "SLI_CONFIG_SPECIAL mailbox command\n"); 5569 return -ENOMEM; 5570 } 5571 5572 /* 5573 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5574 * words to contain special data values and no other data. 5575 */ 5576 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5577 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5578 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5579 if (rc != MBX_SUCCESS) { 5580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5581 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5582 "status x%x\n", 5583 rc); 5584 rc = -EIO; 5585 } 5586 5587 mempool_free(mboxq, phba->mbox_mem_pool); 5588 return rc; 5589 } 5590 5591 /** 5592 * lpfc_sli4_queue_create - Create all the SLI4 queues 5593 * @phba: pointer to lpfc hba data structure. 5594 * 5595 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5596 * operation. For each SLI4 queue type, the parameters such as queue entry 5597 * count (queue depth) shall be taken from the module parameter. For now, 5598 * we just use some constant number as place holder. 5599 * 5600 * Return codes 5601 * 0 - successful 5602 * -ENOMEM - No availble memory 5603 * -EIO - The mailbox failed to complete successfully. 5604 **/ 5605 static int 5606 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5607 { 5608 struct lpfc_queue *qdesc; 5609 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5610 int cfg_fcp_wq_count; 5611 int cfg_fcp_eq_count; 5612 5613 /* 5614 * Sanity check for confiugred queue parameters against the run-time 5615 * device parameters 5616 */ 5617 5618 /* Sanity check on FCP fast-path WQ parameters */ 5619 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5620 if (cfg_fcp_wq_count > 5621 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5622 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5623 LPFC_SP_WQN_DEF; 5624 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5625 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5626 "2581 Not enough WQs (%d) from " 5627 "the pci function for supporting " 5628 "FCP WQs (%d)\n", 5629 phba->sli4_hba.max_cfg_param.max_wq, 5630 phba->cfg_fcp_wq_count); 5631 goto out_error; 5632 } 5633 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5634 "2582 Not enough WQs (%d) from the pci " 5635 "function for supporting the requested " 5636 "FCP WQs (%d), the actual FCP WQs can " 5637 "be supported: %d\n", 5638 phba->sli4_hba.max_cfg_param.max_wq, 5639 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5640 } 5641 /* The actual number of FCP work queues adopted */ 5642 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5643 5644 /* Sanity check on FCP fast-path EQ parameters */ 5645 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5646 if (cfg_fcp_eq_count > 5647 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5648 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5649 LPFC_SP_EQN_DEF; 5650 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5652 "2574 Not enough EQs (%d) from the " 5653 "pci function for supporting FCP " 5654 "EQs (%d)\n", 5655 phba->sli4_hba.max_cfg_param.max_eq, 5656 phba->cfg_fcp_eq_count); 5657 goto out_error; 5658 } 5659 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5660 "2575 Not enough EQs (%d) from the pci " 5661 "function for supporting the requested " 5662 "FCP EQs (%d), the actual FCP EQs can " 5663 "be supported: %d\n", 5664 phba->sli4_hba.max_cfg_param.max_eq, 5665 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5666 } 5667 /* It does not make sense to have more EQs than WQs */ 5668 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5669 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5670 "2593 The FCP EQ count(%d) cannot be greater " 5671 "than the FCP WQ count(%d), limiting the " 5672 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5673 phba->cfg_fcp_wq_count, 5674 phba->cfg_fcp_wq_count); 5675 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5676 } 5677 /* The actual number of FCP event queues adopted */ 5678 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5679 /* The overall number of event queues used */ 5680 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5681 5682 /* 5683 * Create Event Queues (EQs) 5684 */ 5685 5686 /* Get EQ depth from module parameter, fake the default for now */ 5687 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5688 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5689 5690 /* Create slow path event queue */ 5691 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5692 phba->sli4_hba.eq_ecount); 5693 if (!qdesc) { 5694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5695 "0496 Failed allocate slow-path EQ\n"); 5696 goto out_error; 5697 } 5698 phba->sli4_hba.sp_eq = qdesc; 5699 5700 /* Create fast-path FCP Event Queue(s) */ 5701 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5702 phba->cfg_fcp_eq_count), GFP_KERNEL); 5703 if (!phba->sli4_hba.fp_eq) { 5704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5705 "2576 Failed allocate memory for fast-path " 5706 "EQ record array\n"); 5707 goto out_free_sp_eq; 5708 } 5709 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5710 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5711 phba->sli4_hba.eq_ecount); 5712 if (!qdesc) { 5713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5714 "0497 Failed allocate fast-path EQ\n"); 5715 goto out_free_fp_eq; 5716 } 5717 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5718 } 5719 5720 /* 5721 * Create Complete Queues (CQs) 5722 */ 5723 5724 /* Get CQ depth from module parameter, fake the default for now */ 5725 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5726 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5727 5728 /* Create slow-path Mailbox Command Complete Queue */ 5729 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5730 phba->sli4_hba.cq_ecount); 5731 if (!qdesc) { 5732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5733 "0500 Failed allocate slow-path mailbox CQ\n"); 5734 goto out_free_fp_eq; 5735 } 5736 phba->sli4_hba.mbx_cq = qdesc; 5737 5738 /* Create slow-path ELS Complete Queue */ 5739 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5740 phba->sli4_hba.cq_ecount); 5741 if (!qdesc) { 5742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5743 "0501 Failed allocate slow-path ELS CQ\n"); 5744 goto out_free_mbx_cq; 5745 } 5746 phba->sli4_hba.els_cq = qdesc; 5747 5748 5749 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5750 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5751 phba->cfg_fcp_eq_count), GFP_KERNEL); 5752 if (!phba->sli4_hba.fcp_cq) { 5753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5754 "2577 Failed allocate memory for fast-path " 5755 "CQ record array\n"); 5756 goto out_free_els_cq; 5757 } 5758 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5759 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5760 phba->sli4_hba.cq_ecount); 5761 if (!qdesc) { 5762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5763 "0499 Failed allocate fast-path FCP " 5764 "CQ (%d)\n", fcp_cqidx); 5765 goto out_free_fcp_cq; 5766 } 5767 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5768 } 5769 5770 /* Create Mailbox Command Queue */ 5771 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5772 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5773 5774 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5775 phba->sli4_hba.mq_ecount); 5776 if (!qdesc) { 5777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5778 "0505 Failed allocate slow-path MQ\n"); 5779 goto out_free_fcp_cq; 5780 } 5781 phba->sli4_hba.mbx_wq = qdesc; 5782 5783 /* 5784 * Create all the Work Queues (WQs) 5785 */ 5786 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5787 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5788 5789 /* Create slow-path ELS Work Queue */ 5790 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5791 phba->sli4_hba.wq_ecount); 5792 if (!qdesc) { 5793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5794 "0504 Failed allocate slow-path ELS WQ\n"); 5795 goto out_free_mbx_wq; 5796 } 5797 phba->sli4_hba.els_wq = qdesc; 5798 5799 /* Create fast-path FCP Work Queue(s) */ 5800 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5801 phba->cfg_fcp_wq_count), GFP_KERNEL); 5802 if (!phba->sli4_hba.fcp_wq) { 5803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5804 "2578 Failed allocate memory for fast-path " 5805 "WQ record array\n"); 5806 goto out_free_els_wq; 5807 } 5808 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5809 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5810 phba->sli4_hba.wq_ecount); 5811 if (!qdesc) { 5812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5813 "0503 Failed allocate fast-path FCP " 5814 "WQ (%d)\n", fcp_wqidx); 5815 goto out_free_fcp_wq; 5816 } 5817 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5818 } 5819 5820 /* 5821 * Create Receive Queue (RQ) 5822 */ 5823 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5824 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5825 5826 /* Create Receive Queue for header */ 5827 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5828 phba->sli4_hba.rq_ecount); 5829 if (!qdesc) { 5830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5831 "0506 Failed allocate receive HRQ\n"); 5832 goto out_free_fcp_wq; 5833 } 5834 phba->sli4_hba.hdr_rq = qdesc; 5835 5836 /* Create Receive Queue for data */ 5837 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5838 phba->sli4_hba.rq_ecount); 5839 if (!qdesc) { 5840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5841 "0507 Failed allocate receive DRQ\n"); 5842 goto out_free_hdr_rq; 5843 } 5844 phba->sli4_hba.dat_rq = qdesc; 5845 5846 return 0; 5847 5848 out_free_hdr_rq: 5849 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5850 phba->sli4_hba.hdr_rq = NULL; 5851 out_free_fcp_wq: 5852 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5853 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5854 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5855 } 5856 kfree(phba->sli4_hba.fcp_wq); 5857 out_free_els_wq: 5858 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5859 phba->sli4_hba.els_wq = NULL; 5860 out_free_mbx_wq: 5861 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5862 phba->sli4_hba.mbx_wq = NULL; 5863 out_free_fcp_cq: 5864 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5865 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5866 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5867 } 5868 kfree(phba->sli4_hba.fcp_cq); 5869 out_free_els_cq: 5870 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5871 phba->sli4_hba.els_cq = NULL; 5872 out_free_mbx_cq: 5873 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5874 phba->sli4_hba.mbx_cq = NULL; 5875 out_free_fp_eq: 5876 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5877 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5878 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5879 } 5880 kfree(phba->sli4_hba.fp_eq); 5881 out_free_sp_eq: 5882 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5883 phba->sli4_hba.sp_eq = NULL; 5884 out_error: 5885 return -ENOMEM; 5886 } 5887 5888 /** 5889 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5890 * @phba: pointer to lpfc hba data structure. 5891 * 5892 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5893 * operation. 5894 * 5895 * Return codes 5896 * 0 - successful 5897 * -ENOMEM - No availble memory 5898 * -EIO - The mailbox failed to complete successfully. 5899 **/ 5900 static void 5901 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5902 { 5903 int fcp_qidx; 5904 5905 /* Release mailbox command work queue */ 5906 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5907 phba->sli4_hba.mbx_wq = NULL; 5908 5909 /* Release ELS work queue */ 5910 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5911 phba->sli4_hba.els_wq = NULL; 5912 5913 /* Release FCP work queue */ 5914 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5915 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5916 kfree(phba->sli4_hba.fcp_wq); 5917 phba->sli4_hba.fcp_wq = NULL; 5918 5919 /* Release unsolicited receive queue */ 5920 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5921 phba->sli4_hba.hdr_rq = NULL; 5922 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5923 phba->sli4_hba.dat_rq = NULL; 5924 5925 /* Release ELS complete queue */ 5926 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5927 phba->sli4_hba.els_cq = NULL; 5928 5929 /* Release mailbox command complete queue */ 5930 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5931 phba->sli4_hba.mbx_cq = NULL; 5932 5933 /* Release FCP response complete queue */ 5934 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5935 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5936 kfree(phba->sli4_hba.fcp_cq); 5937 phba->sli4_hba.fcp_cq = NULL; 5938 5939 /* Release fast-path event queue */ 5940 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5941 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5942 kfree(phba->sli4_hba.fp_eq); 5943 phba->sli4_hba.fp_eq = NULL; 5944 5945 /* Release slow-path event queue */ 5946 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5947 phba->sli4_hba.sp_eq = NULL; 5948 5949 return; 5950 } 5951 5952 /** 5953 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5954 * @phba: pointer to lpfc hba data structure. 5955 * 5956 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5957 * operation. 5958 * 5959 * Return codes 5960 * 0 - successful 5961 * -ENOMEM - No availble memory 5962 * -EIO - The mailbox failed to complete successfully. 5963 **/ 5964 int 5965 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5966 { 5967 int rc = -ENOMEM; 5968 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5969 int fcp_cq_index = 0; 5970 5971 /* 5972 * Set up Event Queues (EQs) 5973 */ 5974 5975 /* Set up slow-path event queue */ 5976 if (!phba->sli4_hba.sp_eq) { 5977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5978 "0520 Slow-path EQ not allocated\n"); 5979 goto out_error; 5980 } 5981 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5982 LPFC_SP_DEF_IMAX); 5983 if (rc) { 5984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5985 "0521 Failed setup of slow-path EQ: " 5986 "rc = 0x%x\n", rc); 5987 goto out_error; 5988 } 5989 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5990 "2583 Slow-path EQ setup: queue-id=%d\n", 5991 phba->sli4_hba.sp_eq->queue_id); 5992 5993 /* Set up fast-path event queue */ 5994 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5995 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5997 "0522 Fast-path EQ (%d) not " 5998 "allocated\n", fcp_eqidx); 5999 goto out_destroy_fp_eq; 6000 } 6001 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6002 phba->cfg_fcp_imax); 6003 if (rc) { 6004 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6005 "0523 Failed setup of fast-path EQ " 6006 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6007 goto out_destroy_fp_eq; 6008 } 6009 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6010 "2584 Fast-path EQ setup: " 6011 "queue[%d]-id=%d\n", fcp_eqidx, 6012 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6013 } 6014 6015 /* 6016 * Set up Complete Queues (CQs) 6017 */ 6018 6019 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6020 if (!phba->sli4_hba.mbx_cq) { 6021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6022 "0528 Mailbox CQ not allocated\n"); 6023 goto out_destroy_fp_eq; 6024 } 6025 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6026 LPFC_MCQ, LPFC_MBOX); 6027 if (rc) { 6028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6029 "0529 Failed setup of slow-path mailbox CQ: " 6030 "rc = 0x%x\n", rc); 6031 goto out_destroy_fp_eq; 6032 } 6033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6034 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6035 phba->sli4_hba.mbx_cq->queue_id, 6036 phba->sli4_hba.sp_eq->queue_id); 6037 6038 /* Set up slow-path ELS Complete Queue */ 6039 if (!phba->sli4_hba.els_cq) { 6040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6041 "0530 ELS CQ not allocated\n"); 6042 goto out_destroy_mbx_cq; 6043 } 6044 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6045 LPFC_WCQ, LPFC_ELS); 6046 if (rc) { 6047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6048 "0531 Failed setup of slow-path ELS CQ: " 6049 "rc = 0x%x\n", rc); 6050 goto out_destroy_mbx_cq; 6051 } 6052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6053 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6054 phba->sli4_hba.els_cq->queue_id, 6055 phba->sli4_hba.sp_eq->queue_id); 6056 6057 /* Set up fast-path FCP Response Complete Queue */ 6058 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6059 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6061 "0526 Fast-path FCP CQ (%d) not " 6062 "allocated\n", fcp_cqidx); 6063 goto out_destroy_fcp_cq; 6064 } 6065 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6066 phba->sli4_hba.fp_eq[fcp_cqidx], 6067 LPFC_WCQ, LPFC_FCP); 6068 if (rc) { 6069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6070 "0527 Failed setup of fast-path FCP " 6071 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6072 goto out_destroy_fcp_cq; 6073 } 6074 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6075 "2588 FCP CQ setup: cq[%d]-id=%d, " 6076 "parent eq[%d]-id=%d\n", 6077 fcp_cqidx, 6078 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6079 fcp_cqidx, 6080 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6081 } 6082 6083 /* 6084 * Set up all the Work Queues (WQs) 6085 */ 6086 6087 /* Set up Mailbox Command Queue */ 6088 if (!phba->sli4_hba.mbx_wq) { 6089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6090 "0538 Slow-path MQ not allocated\n"); 6091 goto out_destroy_fcp_cq; 6092 } 6093 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6094 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6095 if (rc) { 6096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6097 "0539 Failed setup of slow-path MQ: " 6098 "rc = 0x%x\n", rc); 6099 goto out_destroy_fcp_cq; 6100 } 6101 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6102 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6103 phba->sli4_hba.mbx_wq->queue_id, 6104 phba->sli4_hba.mbx_cq->queue_id); 6105 6106 /* Set up slow-path ELS Work Queue */ 6107 if (!phba->sli4_hba.els_wq) { 6108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6109 "0536 Slow-path ELS WQ not allocated\n"); 6110 goto out_destroy_mbx_wq; 6111 } 6112 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6113 phba->sli4_hba.els_cq, LPFC_ELS); 6114 if (rc) { 6115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6116 "0537 Failed setup of slow-path ELS WQ: " 6117 "rc = 0x%x\n", rc); 6118 goto out_destroy_mbx_wq; 6119 } 6120 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6121 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6122 phba->sli4_hba.els_wq->queue_id, 6123 phba->sli4_hba.els_cq->queue_id); 6124 6125 /* Set up fast-path FCP Work Queue */ 6126 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6127 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6129 "0534 Fast-path FCP WQ (%d) not " 6130 "allocated\n", fcp_wqidx); 6131 goto out_destroy_fcp_wq; 6132 } 6133 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6134 phba->sli4_hba.fcp_cq[fcp_cq_index], 6135 LPFC_FCP); 6136 if (rc) { 6137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6138 "0535 Failed setup of fast-path FCP " 6139 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6140 goto out_destroy_fcp_wq; 6141 } 6142 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6143 "2591 FCP WQ setup: wq[%d]-id=%d, " 6144 "parent cq[%d]-id=%d\n", 6145 fcp_wqidx, 6146 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6147 fcp_cq_index, 6148 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6149 /* Round robin FCP Work Queue's Completion Queue assignment */ 6150 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6151 } 6152 6153 /* 6154 * Create Receive Queue (RQ) 6155 */ 6156 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6158 "0540 Receive Queue not allocated\n"); 6159 goto out_destroy_fcp_wq; 6160 } 6161 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6162 phba->sli4_hba.els_cq, LPFC_USOL); 6163 if (rc) { 6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6165 "0541 Failed setup of Receive Queue: " 6166 "rc = 0x%x\n", rc); 6167 goto out_destroy_fcp_wq; 6168 } 6169 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6170 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6171 "parent cq-id=%d\n", 6172 phba->sli4_hba.hdr_rq->queue_id, 6173 phba->sli4_hba.dat_rq->queue_id, 6174 phba->sli4_hba.els_cq->queue_id); 6175 return 0; 6176 6177 out_destroy_fcp_wq: 6178 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6179 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6180 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6181 out_destroy_mbx_wq: 6182 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6183 out_destroy_fcp_cq: 6184 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6185 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6186 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6187 out_destroy_mbx_cq: 6188 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6189 out_destroy_fp_eq: 6190 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6191 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6192 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6193 out_error: 6194 return rc; 6195 } 6196 6197 /** 6198 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6199 * @phba: pointer to lpfc hba data structure. 6200 * 6201 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6202 * operation. 6203 * 6204 * Return codes 6205 * 0 - successful 6206 * -ENOMEM - No availble memory 6207 * -EIO - The mailbox failed to complete successfully. 6208 **/ 6209 void 6210 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6211 { 6212 int fcp_qidx; 6213 6214 /* Unset mailbox command work queue */ 6215 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6216 /* Unset ELS work queue */ 6217 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6218 /* Unset unsolicited receive queue */ 6219 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6220 /* Unset FCP work queue */ 6221 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6222 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6223 /* Unset mailbox command complete queue */ 6224 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6225 /* Unset ELS complete queue */ 6226 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6227 /* Unset FCP response complete queue */ 6228 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6229 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6230 /* Unset fast-path event queue */ 6231 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6232 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6233 /* Unset slow-path event queue */ 6234 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6235 } 6236 6237 /** 6238 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6239 * @phba: pointer to lpfc hba data structure. 6240 * 6241 * This routine is invoked to allocate and set up a pool of completion queue 6242 * events. The body of the completion queue event is a completion queue entry 6243 * CQE. For now, this pool is used for the interrupt service routine to queue 6244 * the following HBA completion queue events for the worker thread to process: 6245 * - Mailbox asynchronous events 6246 * - Receive queue completion unsolicited events 6247 * Later, this can be used for all the slow-path events. 6248 * 6249 * Return codes 6250 * 0 - successful 6251 * -ENOMEM - No availble memory 6252 **/ 6253 static int 6254 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6255 { 6256 struct lpfc_cq_event *cq_event; 6257 int i; 6258 6259 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6260 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6261 if (!cq_event) 6262 goto out_pool_create_fail; 6263 list_add_tail(&cq_event->list, 6264 &phba->sli4_hba.sp_cqe_event_pool); 6265 } 6266 return 0; 6267 6268 out_pool_create_fail: 6269 lpfc_sli4_cq_event_pool_destroy(phba); 6270 return -ENOMEM; 6271 } 6272 6273 /** 6274 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6275 * @phba: pointer to lpfc hba data structure. 6276 * 6277 * This routine is invoked to free the pool of completion queue events at 6278 * driver unload time. Note that, it is the responsibility of the driver 6279 * cleanup routine to free all the outstanding completion-queue events 6280 * allocated from this pool back into the pool before invoking this routine 6281 * to destroy the pool. 6282 **/ 6283 static void 6284 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6285 { 6286 struct lpfc_cq_event *cq_event, *next_cq_event; 6287 6288 list_for_each_entry_safe(cq_event, next_cq_event, 6289 &phba->sli4_hba.sp_cqe_event_pool, list) { 6290 list_del(&cq_event->list); 6291 kfree(cq_event); 6292 } 6293 } 6294 6295 /** 6296 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6297 * @phba: pointer to lpfc hba data structure. 6298 * 6299 * This routine is the lock free version of the API invoked to allocate a 6300 * completion-queue event from the free pool. 6301 * 6302 * Return: Pointer to the newly allocated completion-queue event if successful 6303 * NULL otherwise. 6304 **/ 6305 struct lpfc_cq_event * 6306 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6307 { 6308 struct lpfc_cq_event *cq_event = NULL; 6309 6310 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6311 struct lpfc_cq_event, list); 6312 return cq_event; 6313 } 6314 6315 /** 6316 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6317 * @phba: pointer to lpfc hba data structure. 6318 * 6319 * This routine is the lock version of the API invoked to allocate a 6320 * completion-queue event from the free pool. 6321 * 6322 * Return: Pointer to the newly allocated completion-queue event if successful 6323 * NULL otherwise. 6324 **/ 6325 struct lpfc_cq_event * 6326 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6327 { 6328 struct lpfc_cq_event *cq_event; 6329 unsigned long iflags; 6330 6331 spin_lock_irqsave(&phba->hbalock, iflags); 6332 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6333 spin_unlock_irqrestore(&phba->hbalock, iflags); 6334 return cq_event; 6335 } 6336 6337 /** 6338 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6339 * @phba: pointer to lpfc hba data structure. 6340 * @cq_event: pointer to the completion queue event to be freed. 6341 * 6342 * This routine is the lock free version of the API invoked to release a 6343 * completion-queue event back into the free pool. 6344 **/ 6345 void 6346 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6347 struct lpfc_cq_event *cq_event) 6348 { 6349 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6350 } 6351 6352 /** 6353 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6354 * @phba: pointer to lpfc hba data structure. 6355 * @cq_event: pointer to the completion queue event to be freed. 6356 * 6357 * This routine is the lock version of the API invoked to release a 6358 * completion-queue event back into the free pool. 6359 **/ 6360 void 6361 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6362 struct lpfc_cq_event *cq_event) 6363 { 6364 unsigned long iflags; 6365 spin_lock_irqsave(&phba->hbalock, iflags); 6366 __lpfc_sli4_cq_event_release(phba, cq_event); 6367 spin_unlock_irqrestore(&phba->hbalock, iflags); 6368 } 6369 6370 /** 6371 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6372 * @phba: pointer to lpfc hba data structure. 6373 * 6374 * This routine is to free all the pending completion-queue events to the 6375 * back into the free pool for device reset. 6376 **/ 6377 static void 6378 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6379 { 6380 LIST_HEAD(cqelist); 6381 struct lpfc_cq_event *cqe; 6382 unsigned long iflags; 6383 6384 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6385 spin_lock_irqsave(&phba->hbalock, iflags); 6386 /* Pending FCP XRI abort events */ 6387 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6388 &cqelist); 6389 /* Pending ELS XRI abort events */ 6390 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6391 &cqelist); 6392 /* Pending asynnc events */ 6393 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6394 &cqelist); 6395 spin_unlock_irqrestore(&phba->hbalock, iflags); 6396 6397 while (!list_empty(&cqelist)) { 6398 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6399 lpfc_sli4_cq_event_release(phba, cqe); 6400 } 6401 } 6402 6403 /** 6404 * lpfc_pci_function_reset - Reset pci function. 6405 * @phba: pointer to lpfc hba data structure. 6406 * 6407 * This routine is invoked to request a PCI function reset. It will destroys 6408 * all resources assigned to the PCI function which originates this request. 6409 * 6410 * Return codes 6411 * 0 - successful 6412 * -ENOMEM - No availble memory 6413 * -EIO - The mailbox failed to complete successfully. 6414 **/ 6415 int 6416 lpfc_pci_function_reset(struct lpfc_hba *phba) 6417 { 6418 LPFC_MBOXQ_t *mboxq; 6419 uint32_t rc = 0; 6420 uint32_t shdr_status, shdr_add_status; 6421 union lpfc_sli4_cfg_shdr *shdr; 6422 6423 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6424 if (!mboxq) { 6425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6426 "0494 Unable to allocate memory for issuing " 6427 "SLI_FUNCTION_RESET mailbox command\n"); 6428 return -ENOMEM; 6429 } 6430 6431 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6432 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6433 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6434 LPFC_SLI4_MBX_EMBED); 6435 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6436 shdr = (union lpfc_sli4_cfg_shdr *) 6437 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6438 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6439 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6440 if (rc != MBX_TIMEOUT) 6441 mempool_free(mboxq, phba->mbox_mem_pool); 6442 if (shdr_status || shdr_add_status || rc) { 6443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6444 "0495 SLI_FUNCTION_RESET mailbox failed with " 6445 "status x%x add_status x%x, mbx status x%x\n", 6446 shdr_status, shdr_add_status, rc); 6447 rc = -ENXIO; 6448 } 6449 return rc; 6450 } 6451 6452 /** 6453 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6454 * @phba: pointer to lpfc hba data structure. 6455 * @cnt: number of nop mailbox commands to send. 6456 * 6457 * This routine is invoked to send a number @cnt of NOP mailbox command and 6458 * wait for each command to complete. 6459 * 6460 * Return: the number of NOP mailbox command completed. 6461 **/ 6462 static int 6463 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6464 { 6465 LPFC_MBOXQ_t *mboxq; 6466 int length, cmdsent; 6467 uint32_t mbox_tmo; 6468 uint32_t rc = 0; 6469 uint32_t shdr_status, shdr_add_status; 6470 union lpfc_sli4_cfg_shdr *shdr; 6471 6472 if (cnt == 0) { 6473 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6474 "2518 Requested to send 0 NOP mailbox cmd\n"); 6475 return cnt; 6476 } 6477 6478 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6479 if (!mboxq) { 6480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6481 "2519 Unable to allocate memory for issuing " 6482 "NOP mailbox command\n"); 6483 return 0; 6484 } 6485 6486 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6487 length = (sizeof(struct lpfc_mbx_nop) - 6488 sizeof(struct lpfc_sli4_cfg_mhdr)); 6489 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6490 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6491 6492 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6493 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6494 if (!phba->sli4_hba.intr_enable) 6495 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6496 else 6497 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6498 if (rc == MBX_TIMEOUT) 6499 break; 6500 /* Check return status */ 6501 shdr = (union lpfc_sli4_cfg_shdr *) 6502 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6503 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6504 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6505 &shdr->response); 6506 if (shdr_status || shdr_add_status || rc) { 6507 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6508 "2520 NOP mailbox command failed " 6509 "status x%x add_status x%x mbx " 6510 "status x%x\n", shdr_status, 6511 shdr_add_status, rc); 6512 break; 6513 } 6514 } 6515 6516 if (rc != MBX_TIMEOUT) 6517 mempool_free(mboxq, phba->mbox_mem_pool); 6518 6519 return cmdsent; 6520 } 6521 6522 /** 6523 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6524 * @phba: pointer to lpfc hba data structure. 6525 * 6526 * This routine is invoked to set up the PCI device memory space for device 6527 * with SLI-4 interface spec. 6528 * 6529 * Return codes 6530 * 0 - successful 6531 * other values - error 6532 **/ 6533 static int 6534 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6535 { 6536 struct pci_dev *pdev; 6537 unsigned long bar0map_len, bar1map_len, bar2map_len; 6538 int error = -ENODEV; 6539 6540 /* Obtain PCI device reference */ 6541 if (!phba->pcidev) 6542 return error; 6543 else 6544 pdev = phba->pcidev; 6545 6546 /* Set the device DMA mask size */ 6547 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6548 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6549 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6550 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6551 return error; 6552 } 6553 } 6554 6555 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6556 * number of bytes required by each mapping. They are actually 6557 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6558 */ 6559 if (pci_resource_start(pdev, 0)) { 6560 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6561 bar0map_len = pci_resource_len(pdev, 0); 6562 } else { 6563 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6564 bar0map_len = pci_resource_len(pdev, 1); 6565 } 6566 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6567 bar1map_len = pci_resource_len(pdev, 2); 6568 6569 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6570 bar2map_len = pci_resource_len(pdev, 4); 6571 6572 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6573 phba->sli4_hba.conf_regs_memmap_p = 6574 ioremap(phba->pci_bar0_map, bar0map_len); 6575 if (!phba->sli4_hba.conf_regs_memmap_p) { 6576 dev_printk(KERN_ERR, &pdev->dev, 6577 "ioremap failed for SLI4 PCI config registers.\n"); 6578 goto out; 6579 } 6580 6581 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6582 phba->sli4_hba.ctrl_regs_memmap_p = 6583 ioremap(phba->pci_bar1_map, bar1map_len); 6584 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6585 dev_printk(KERN_ERR, &pdev->dev, 6586 "ioremap failed for SLI4 HBA control registers.\n"); 6587 goto out_iounmap_conf; 6588 } 6589 6590 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6591 phba->sli4_hba.drbl_regs_memmap_p = 6592 ioremap(phba->pci_bar2_map, bar2map_len); 6593 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6594 dev_printk(KERN_ERR, &pdev->dev, 6595 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6596 goto out_iounmap_ctrl; 6597 } 6598 6599 /* Set up BAR0 PCI config space register memory map */ 6600 lpfc_sli4_bar0_register_memmap(phba); 6601 6602 /* Set up BAR1 register memory map */ 6603 lpfc_sli4_bar1_register_memmap(phba); 6604 6605 /* Set up BAR2 register memory map */ 6606 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6607 if (error) 6608 goto out_iounmap_all; 6609 6610 return 0; 6611 6612 out_iounmap_all: 6613 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6614 out_iounmap_ctrl: 6615 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6616 out_iounmap_conf: 6617 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6618 out: 6619 return error; 6620 } 6621 6622 /** 6623 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6624 * @phba: pointer to lpfc hba data structure. 6625 * 6626 * This routine is invoked to unset the PCI device memory space for device 6627 * with SLI-4 interface spec. 6628 **/ 6629 static void 6630 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6631 { 6632 struct pci_dev *pdev; 6633 6634 /* Obtain PCI device reference */ 6635 if (!phba->pcidev) 6636 return; 6637 else 6638 pdev = phba->pcidev; 6639 6640 /* Free coherent DMA memory allocated */ 6641 6642 /* Unmap I/O memory space */ 6643 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6644 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6645 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6646 6647 return; 6648 } 6649 6650 /** 6651 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6652 * @phba: pointer to lpfc hba data structure. 6653 * 6654 * This routine is invoked to enable the MSI-X interrupt vectors to device 6655 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6656 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6657 * invoked, enables either all or nothing, depending on the current 6658 * availability of PCI vector resources. The device driver is responsible 6659 * for calling the individual request_irq() to register each MSI-X vector 6660 * with a interrupt handler, which is done in this function. Note that 6661 * later when device is unloading, the driver should always call free_irq() 6662 * on all MSI-X vectors it has done request_irq() on before calling 6663 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6664 * will be left with MSI-X enabled and leaks its vectors. 6665 * 6666 * Return codes 6667 * 0 - successful 6668 * other values - error 6669 **/ 6670 static int 6671 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6672 { 6673 int rc, i; 6674 LPFC_MBOXQ_t *pmb; 6675 6676 /* Set up MSI-X multi-message vectors */ 6677 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6678 phba->msix_entries[i].entry = i; 6679 6680 /* Configure MSI-X capability structure */ 6681 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6682 ARRAY_SIZE(phba->msix_entries)); 6683 if (rc) { 6684 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6685 "0420 PCI enable MSI-X failed (%d)\n", rc); 6686 goto msi_fail_out; 6687 } 6688 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6690 "0477 MSI-X entry[%d]: vector=x%x " 6691 "message=%d\n", i, 6692 phba->msix_entries[i].vector, 6693 phba->msix_entries[i].entry); 6694 /* 6695 * Assign MSI-X vectors to interrupt handlers 6696 */ 6697 6698 /* vector-0 is associated to slow-path handler */ 6699 rc = request_irq(phba->msix_entries[0].vector, 6700 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6701 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6702 if (rc) { 6703 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6704 "0421 MSI-X slow-path request_irq failed " 6705 "(%d)\n", rc); 6706 goto msi_fail_out; 6707 } 6708 6709 /* vector-1 is associated to fast-path handler */ 6710 rc = request_irq(phba->msix_entries[1].vector, 6711 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6712 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6713 6714 if (rc) { 6715 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6716 "0429 MSI-X fast-path request_irq failed " 6717 "(%d)\n", rc); 6718 goto irq_fail_out; 6719 } 6720 6721 /* 6722 * Configure HBA MSI-X attention conditions to messages 6723 */ 6724 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6725 6726 if (!pmb) { 6727 rc = -ENOMEM; 6728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6729 "0474 Unable to allocate memory for issuing " 6730 "MBOX_CONFIG_MSI command\n"); 6731 goto mem_fail_out; 6732 } 6733 rc = lpfc_config_msi(phba, pmb); 6734 if (rc) 6735 goto mbx_fail_out; 6736 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6737 if (rc != MBX_SUCCESS) { 6738 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6739 "0351 Config MSI mailbox command failed, " 6740 "mbxCmd x%x, mbxStatus x%x\n", 6741 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6742 goto mbx_fail_out; 6743 } 6744 6745 /* Free memory allocated for mailbox command */ 6746 mempool_free(pmb, phba->mbox_mem_pool); 6747 return rc; 6748 6749 mbx_fail_out: 6750 /* Free memory allocated for mailbox command */ 6751 mempool_free(pmb, phba->mbox_mem_pool); 6752 6753 mem_fail_out: 6754 /* free the irq already requested */ 6755 free_irq(phba->msix_entries[1].vector, phba); 6756 6757 irq_fail_out: 6758 /* free the irq already requested */ 6759 free_irq(phba->msix_entries[0].vector, phba); 6760 6761 msi_fail_out: 6762 /* Unconfigure MSI-X capability structure */ 6763 pci_disable_msix(phba->pcidev); 6764 return rc; 6765 } 6766 6767 /** 6768 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6769 * @phba: pointer to lpfc hba data structure. 6770 * 6771 * This routine is invoked to release the MSI-X vectors and then disable the 6772 * MSI-X interrupt mode to device with SLI-3 interface spec. 6773 **/ 6774 static void 6775 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6776 { 6777 int i; 6778 6779 /* Free up MSI-X multi-message vectors */ 6780 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6781 free_irq(phba->msix_entries[i].vector, phba); 6782 /* Disable MSI-X */ 6783 pci_disable_msix(phba->pcidev); 6784 6785 return; 6786 } 6787 6788 /** 6789 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6790 * @phba: pointer to lpfc hba data structure. 6791 * 6792 * This routine is invoked to enable the MSI interrupt mode to device with 6793 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6794 * enable the MSI vector. The device driver is responsible for calling the 6795 * request_irq() to register MSI vector with a interrupt the handler, which 6796 * is done in this function. 6797 * 6798 * Return codes 6799 * 0 - successful 6800 * other values - error 6801 */ 6802 static int 6803 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6804 { 6805 int rc; 6806 6807 rc = pci_enable_msi(phba->pcidev); 6808 if (!rc) 6809 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6810 "0462 PCI enable MSI mode success.\n"); 6811 else { 6812 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6813 "0471 PCI enable MSI mode failed (%d)\n", rc); 6814 return rc; 6815 } 6816 6817 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6818 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6819 if (rc) { 6820 pci_disable_msi(phba->pcidev); 6821 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6822 "0478 MSI request_irq failed (%d)\n", rc); 6823 } 6824 return rc; 6825 } 6826 6827 /** 6828 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6829 * @phba: pointer to lpfc hba data structure. 6830 * 6831 * This routine is invoked to disable the MSI interrupt mode to device with 6832 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6833 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6834 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6835 * its vector. 6836 */ 6837 static void 6838 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6839 { 6840 free_irq(phba->pcidev->irq, phba); 6841 pci_disable_msi(phba->pcidev); 6842 return; 6843 } 6844 6845 /** 6846 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6847 * @phba: pointer to lpfc hba data structure. 6848 * 6849 * This routine is invoked to enable device interrupt and associate driver's 6850 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6851 * spec. Depends on the interrupt mode configured to the driver, the driver 6852 * will try to fallback from the configured interrupt mode to an interrupt 6853 * mode which is supported by the platform, kernel, and device in the order 6854 * of: 6855 * MSI-X -> MSI -> IRQ. 6856 * 6857 * Return codes 6858 * 0 - successful 6859 * other values - error 6860 **/ 6861 static uint32_t 6862 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6863 { 6864 uint32_t intr_mode = LPFC_INTR_ERROR; 6865 int retval; 6866 6867 if (cfg_mode == 2) { 6868 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6869 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6870 if (!retval) { 6871 /* Now, try to enable MSI-X interrupt mode */ 6872 retval = lpfc_sli_enable_msix(phba); 6873 if (!retval) { 6874 /* Indicate initialization to MSI-X mode */ 6875 phba->intr_type = MSIX; 6876 intr_mode = 2; 6877 } 6878 } 6879 } 6880 6881 /* Fallback to MSI if MSI-X initialization failed */ 6882 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6883 retval = lpfc_sli_enable_msi(phba); 6884 if (!retval) { 6885 /* Indicate initialization to MSI mode */ 6886 phba->intr_type = MSI; 6887 intr_mode = 1; 6888 } 6889 } 6890 6891 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6892 if (phba->intr_type == NONE) { 6893 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6894 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6895 if (!retval) { 6896 /* Indicate initialization to INTx mode */ 6897 phba->intr_type = INTx; 6898 intr_mode = 0; 6899 } 6900 } 6901 return intr_mode; 6902 } 6903 6904 /** 6905 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6906 * @phba: pointer to lpfc hba data structure. 6907 * 6908 * This routine is invoked to disable device interrupt and disassociate the 6909 * driver's interrupt handler(s) from interrupt vector(s) to device with 6910 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6911 * release the interrupt vector(s) for the message signaled interrupt. 6912 **/ 6913 static void 6914 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6915 { 6916 /* Disable the currently initialized interrupt mode */ 6917 if (phba->intr_type == MSIX) 6918 lpfc_sli_disable_msix(phba); 6919 else if (phba->intr_type == MSI) 6920 lpfc_sli_disable_msi(phba); 6921 else if (phba->intr_type == INTx) 6922 free_irq(phba->pcidev->irq, phba); 6923 6924 /* Reset interrupt management states */ 6925 phba->intr_type = NONE; 6926 phba->sli.slistat.sli_intr = 0; 6927 6928 return; 6929 } 6930 6931 /** 6932 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6933 * @phba: pointer to lpfc hba data structure. 6934 * 6935 * This routine is invoked to enable the MSI-X interrupt vectors to device 6936 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6937 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6938 * enables either all or nothing, depending on the current availability of 6939 * PCI vector resources. The device driver is responsible for calling the 6940 * individual request_irq() to register each MSI-X vector with a interrupt 6941 * handler, which is done in this function. Note that later when device is 6942 * unloading, the driver should always call free_irq() on all MSI-X vectors 6943 * it has done request_irq() on before calling pci_disable_msix(). Failure 6944 * to do so results in a BUG_ON() and a device will be left with MSI-X 6945 * enabled and leaks its vectors. 6946 * 6947 * Return codes 6948 * 0 - successful 6949 * other values - error 6950 **/ 6951 static int 6952 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6953 { 6954 int vectors, rc, index; 6955 6956 /* Set up MSI-X multi-message vectors */ 6957 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6958 phba->sli4_hba.msix_entries[index].entry = index; 6959 6960 /* Configure MSI-X capability structure */ 6961 vectors = phba->sli4_hba.cfg_eqn; 6962 enable_msix_vectors: 6963 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6964 vectors); 6965 if (rc > 1) { 6966 vectors = rc; 6967 goto enable_msix_vectors; 6968 } else if (rc) { 6969 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6970 "0484 PCI enable MSI-X failed (%d)\n", rc); 6971 goto msi_fail_out; 6972 } 6973 6974 /* Log MSI-X vector assignment */ 6975 for (index = 0; index < vectors; index++) 6976 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6977 "0489 MSI-X entry[%d]: vector=x%x " 6978 "message=%d\n", index, 6979 phba->sli4_hba.msix_entries[index].vector, 6980 phba->sli4_hba.msix_entries[index].entry); 6981 /* 6982 * Assign MSI-X vectors to interrupt handlers 6983 */ 6984 6985 /* The first vector must associated to slow-path handler for MQ */ 6986 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6987 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6988 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6989 if (rc) { 6990 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6991 "0485 MSI-X slow-path request_irq failed " 6992 "(%d)\n", rc); 6993 goto msi_fail_out; 6994 } 6995 6996 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6997 for (index = 1; index < vectors; index++) { 6998 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6999 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7000 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7001 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7002 LPFC_FP_DRIVER_HANDLER_NAME, 7003 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7004 if (rc) { 7005 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7006 "0486 MSI-X fast-path (%d) " 7007 "request_irq failed (%d)\n", index, rc); 7008 goto cfg_fail_out; 7009 } 7010 } 7011 phba->sli4_hba.msix_vec_nr = vectors; 7012 7013 return rc; 7014 7015 cfg_fail_out: 7016 /* free the irq already requested */ 7017 for (--index; index >= 1; index--) 7018 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7019 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7020 7021 /* free the irq already requested */ 7022 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7023 7024 msi_fail_out: 7025 /* Unconfigure MSI-X capability structure */ 7026 pci_disable_msix(phba->pcidev); 7027 return rc; 7028 } 7029 7030 /** 7031 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7032 * @phba: pointer to lpfc hba data structure. 7033 * 7034 * This routine is invoked to release the MSI-X vectors and then disable the 7035 * MSI-X interrupt mode to device with SLI-4 interface spec. 7036 **/ 7037 static void 7038 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7039 { 7040 int index; 7041 7042 /* Free up MSI-X multi-message vectors */ 7043 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7044 7045 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7046 free_irq(phba->sli4_hba.msix_entries[index].vector, 7047 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7048 7049 /* Disable MSI-X */ 7050 pci_disable_msix(phba->pcidev); 7051 7052 return; 7053 } 7054 7055 /** 7056 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7057 * @phba: pointer to lpfc hba data structure. 7058 * 7059 * This routine is invoked to enable the MSI interrupt mode to device with 7060 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7061 * to enable the MSI vector. The device driver is responsible for calling 7062 * the request_irq() to register MSI vector with a interrupt the handler, 7063 * which is done in this function. 7064 * 7065 * Return codes 7066 * 0 - successful 7067 * other values - error 7068 **/ 7069 static int 7070 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7071 { 7072 int rc, index; 7073 7074 rc = pci_enable_msi(phba->pcidev); 7075 if (!rc) 7076 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7077 "0487 PCI enable MSI mode success.\n"); 7078 else { 7079 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7080 "0488 PCI enable MSI mode failed (%d)\n", rc); 7081 return rc; 7082 } 7083 7084 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7085 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7086 if (rc) { 7087 pci_disable_msi(phba->pcidev); 7088 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7089 "0490 MSI request_irq failed (%d)\n", rc); 7090 return rc; 7091 } 7092 7093 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7094 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7095 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7096 } 7097 7098 return 0; 7099 } 7100 7101 /** 7102 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7103 * @phba: pointer to lpfc hba data structure. 7104 * 7105 * This routine is invoked to disable the MSI interrupt mode to device with 7106 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7107 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7108 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7109 * its vector. 7110 **/ 7111 static void 7112 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7113 { 7114 free_irq(phba->pcidev->irq, phba); 7115 pci_disable_msi(phba->pcidev); 7116 return; 7117 } 7118 7119 /** 7120 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7121 * @phba: pointer to lpfc hba data structure. 7122 * 7123 * This routine is invoked to enable device interrupt and associate driver's 7124 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7125 * interface spec. Depends on the interrupt mode configured to the driver, 7126 * the driver will try to fallback from the configured interrupt mode to an 7127 * interrupt mode which is supported by the platform, kernel, and device in 7128 * the order of: 7129 * MSI-X -> MSI -> IRQ. 7130 * 7131 * Return codes 7132 * 0 - successful 7133 * other values - error 7134 **/ 7135 static uint32_t 7136 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7137 { 7138 uint32_t intr_mode = LPFC_INTR_ERROR; 7139 int retval, index; 7140 7141 if (cfg_mode == 2) { 7142 /* Preparation before conf_msi mbox cmd */ 7143 retval = 0; 7144 if (!retval) { 7145 /* Now, try to enable MSI-X interrupt mode */ 7146 retval = lpfc_sli4_enable_msix(phba); 7147 if (!retval) { 7148 /* Indicate initialization to MSI-X mode */ 7149 phba->intr_type = MSIX; 7150 intr_mode = 2; 7151 } 7152 } 7153 } 7154 7155 /* Fallback to MSI if MSI-X initialization failed */ 7156 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7157 retval = lpfc_sli4_enable_msi(phba); 7158 if (!retval) { 7159 /* Indicate initialization to MSI mode */ 7160 phba->intr_type = MSI; 7161 intr_mode = 1; 7162 } 7163 } 7164 7165 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7166 if (phba->intr_type == NONE) { 7167 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7168 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7169 if (!retval) { 7170 /* Indicate initialization to INTx mode */ 7171 phba->intr_type = INTx; 7172 intr_mode = 0; 7173 for (index = 0; index < phba->cfg_fcp_eq_count; 7174 index++) { 7175 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7176 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7177 } 7178 } 7179 } 7180 return intr_mode; 7181 } 7182 7183 /** 7184 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7185 * @phba: pointer to lpfc hba data structure. 7186 * 7187 * This routine is invoked to disable device interrupt and disassociate 7188 * the driver's interrupt handler(s) from interrupt vector(s) to device 7189 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7190 * will release the interrupt vector(s) for the message signaled interrupt. 7191 **/ 7192 static void 7193 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7194 { 7195 /* Disable the currently initialized interrupt mode */ 7196 if (phba->intr_type == MSIX) 7197 lpfc_sli4_disable_msix(phba); 7198 else if (phba->intr_type == MSI) 7199 lpfc_sli4_disable_msi(phba); 7200 else if (phba->intr_type == INTx) 7201 free_irq(phba->pcidev->irq, phba); 7202 7203 /* Reset interrupt management states */ 7204 phba->intr_type = NONE; 7205 phba->sli.slistat.sli_intr = 0; 7206 7207 return; 7208 } 7209 7210 /** 7211 * lpfc_unset_hba - Unset SLI3 hba device initialization 7212 * @phba: pointer to lpfc hba data structure. 7213 * 7214 * This routine is invoked to unset the HBA device initialization steps to 7215 * a device with SLI-3 interface spec. 7216 **/ 7217 static void 7218 lpfc_unset_hba(struct lpfc_hba *phba) 7219 { 7220 struct lpfc_vport *vport = phba->pport; 7221 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7222 7223 spin_lock_irq(shost->host_lock); 7224 vport->load_flag |= FC_UNLOADING; 7225 spin_unlock_irq(shost->host_lock); 7226 7227 lpfc_stop_hba_timers(phba); 7228 7229 phba->pport->work_port_events = 0; 7230 7231 lpfc_sli_hba_down(phba); 7232 7233 lpfc_sli_brdrestart(phba); 7234 7235 lpfc_sli_disable_intr(phba); 7236 7237 return; 7238 } 7239 7240 /** 7241 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7242 * @phba: pointer to lpfc hba data structure. 7243 * 7244 * This routine is invoked to unset the HBA device initialization steps to 7245 * a device with SLI-4 interface spec. 7246 **/ 7247 static void 7248 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7249 { 7250 struct lpfc_vport *vport = phba->pport; 7251 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7252 7253 spin_lock_irq(shost->host_lock); 7254 vport->load_flag |= FC_UNLOADING; 7255 spin_unlock_irq(shost->host_lock); 7256 7257 phba->pport->work_port_events = 0; 7258 7259 /* Stop the SLI4 device port */ 7260 lpfc_stop_port(phba); 7261 7262 lpfc_sli4_disable_intr(phba); 7263 7264 /* Reset SLI4 HBA FCoE function */ 7265 lpfc_pci_function_reset(phba); 7266 7267 return; 7268 } 7269 7270 /** 7271 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7272 * @phba: Pointer to HBA context object. 7273 * 7274 * This function is called in the SLI4 code path to wait for completion 7275 * of device's XRIs exchange busy. It will check the XRI exchange busy 7276 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7277 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7278 * I/Os every 30 seconds, log error message, and wait forever. Only when 7279 * all XRI exchange busy complete, the driver unload shall proceed with 7280 * invoking the function reset ioctl mailbox command to the CNA and the 7281 * the rest of the driver unload resource release. 7282 **/ 7283 static void 7284 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7285 { 7286 int wait_time = 0; 7287 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7288 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7289 7290 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7291 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7292 if (!fcp_xri_cmpl) 7293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7294 "2877 FCP XRI exchange busy " 7295 "wait time: %d seconds.\n", 7296 wait_time/1000); 7297 if (!els_xri_cmpl) 7298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7299 "2878 ELS XRI exchange busy " 7300 "wait time: %d seconds.\n", 7301 wait_time/1000); 7302 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7303 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7304 } else { 7305 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7306 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7307 } 7308 fcp_xri_cmpl = 7309 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7310 els_xri_cmpl = 7311 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7312 } 7313 } 7314 7315 /** 7316 * lpfc_sli4_hba_unset - Unset the fcoe hba 7317 * @phba: Pointer to HBA context object. 7318 * 7319 * This function is called in the SLI4 code path to reset the HBA's FCoE 7320 * function. The caller is not required to hold any lock. This routine 7321 * issues PCI function reset mailbox command to reset the FCoE function. 7322 * At the end of the function, it calls lpfc_hba_down_post function to 7323 * free any pending commands. 7324 **/ 7325 static void 7326 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7327 { 7328 int wait_cnt = 0; 7329 LPFC_MBOXQ_t *mboxq; 7330 7331 lpfc_stop_hba_timers(phba); 7332 phba->sli4_hba.intr_enable = 0; 7333 7334 /* 7335 * Gracefully wait out the potential current outstanding asynchronous 7336 * mailbox command. 7337 */ 7338 7339 /* First, block any pending async mailbox command from posted */ 7340 spin_lock_irq(&phba->hbalock); 7341 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7342 spin_unlock_irq(&phba->hbalock); 7343 /* Now, trying to wait it out if we can */ 7344 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7345 msleep(10); 7346 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7347 break; 7348 } 7349 /* Forcefully release the outstanding mailbox command if timed out */ 7350 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7351 spin_lock_irq(&phba->hbalock); 7352 mboxq = phba->sli.mbox_active; 7353 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7354 __lpfc_mbox_cmpl_put(phba, mboxq); 7355 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7356 phba->sli.mbox_active = NULL; 7357 spin_unlock_irq(&phba->hbalock); 7358 } 7359 7360 /* Abort all iocbs associated with the hba */ 7361 lpfc_sli_hba_iocb_abort(phba); 7362 7363 /* Wait for completion of device XRI exchange busy */ 7364 lpfc_sli4_xri_exchange_busy_wait(phba); 7365 7366 /* Disable PCI subsystem interrupt */ 7367 lpfc_sli4_disable_intr(phba); 7368 7369 /* Stop kthread signal shall trigger work_done one more time */ 7370 kthread_stop(phba->worker_thread); 7371 7372 /* Reset SLI4 HBA FCoE function */ 7373 lpfc_pci_function_reset(phba); 7374 7375 /* Stop the SLI4 device port */ 7376 phba->pport->work_port_events = 0; 7377 } 7378 7379 /** 7380 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7381 * @phba: Pointer to HBA context object. 7382 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7383 * 7384 * This function is called in the SLI4 code path to read the port's 7385 * sli4 capabilities. 7386 * 7387 * This function may be be called from any context that can block-wait 7388 * for the completion. The expectation is that this routine is called 7389 * typically from probe_one or from the online routine. 7390 **/ 7391 int 7392 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7393 { 7394 int rc; 7395 struct lpfc_mqe *mqe; 7396 struct lpfc_pc_sli4_params *sli4_params; 7397 uint32_t mbox_tmo; 7398 7399 rc = 0; 7400 mqe = &mboxq->u.mqe; 7401 7402 /* Read the port's SLI4 Parameters port capabilities */ 7403 lpfc_sli4_params(mboxq); 7404 if (!phba->sli4_hba.intr_enable) 7405 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7406 else { 7407 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7408 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7409 } 7410 7411 if (unlikely(rc)) 7412 return 1; 7413 7414 sli4_params = &phba->sli4_hba.pc_sli4_params; 7415 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7416 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7417 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7418 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7419 &mqe->un.sli4_params); 7420 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7421 &mqe->un.sli4_params); 7422 sli4_params->proto_types = mqe->un.sli4_params.word3; 7423 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7424 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7425 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7426 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7427 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7428 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7429 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7430 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7431 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7432 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7433 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7434 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7435 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7436 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7437 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7438 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7439 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7440 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7441 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7442 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7443 return rc; 7444 } 7445 7446 /** 7447 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7448 * @pdev: pointer to PCI device 7449 * @pid: pointer to PCI device identifier 7450 * 7451 * This routine is to be called to attach a device with SLI-3 interface spec 7452 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7453 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7454 * information of the device and driver to see if the driver state that it can 7455 * support this kind of device. If the match is successful, the driver core 7456 * invokes this routine. If this routine determines it can claim the HBA, it 7457 * does all the initialization that it needs to do to handle the HBA properly. 7458 * 7459 * Return code 7460 * 0 - driver can claim the device 7461 * negative value - driver can not claim the device 7462 **/ 7463 static int __devinit 7464 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7465 { 7466 struct lpfc_hba *phba; 7467 struct lpfc_vport *vport = NULL; 7468 struct Scsi_Host *shost = NULL; 7469 int error; 7470 uint32_t cfg_mode, intr_mode; 7471 7472 /* Allocate memory for HBA structure */ 7473 phba = lpfc_hba_alloc(pdev); 7474 if (!phba) 7475 return -ENOMEM; 7476 7477 /* Perform generic PCI device enabling operation */ 7478 error = lpfc_enable_pci_dev(phba); 7479 if (error) { 7480 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7481 "1401 Failed to enable pci device.\n"); 7482 goto out_free_phba; 7483 } 7484 7485 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7486 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7487 if (error) 7488 goto out_disable_pci_dev; 7489 7490 /* Set up SLI-3 specific device PCI memory space */ 7491 error = lpfc_sli_pci_mem_setup(phba); 7492 if (error) { 7493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7494 "1402 Failed to set up pci memory space.\n"); 7495 goto out_disable_pci_dev; 7496 } 7497 7498 /* Set up phase-1 common device driver resources */ 7499 error = lpfc_setup_driver_resource_phase1(phba); 7500 if (error) { 7501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7502 "1403 Failed to set up driver resource.\n"); 7503 goto out_unset_pci_mem_s3; 7504 } 7505 7506 /* Set up SLI-3 specific device driver resources */ 7507 error = lpfc_sli_driver_resource_setup(phba); 7508 if (error) { 7509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7510 "1404 Failed to set up driver resource.\n"); 7511 goto out_unset_pci_mem_s3; 7512 } 7513 7514 /* Initialize and populate the iocb list per host */ 7515 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7516 if (error) { 7517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7518 "1405 Failed to initialize iocb list.\n"); 7519 goto out_unset_driver_resource_s3; 7520 } 7521 7522 /* Set up common device driver resources */ 7523 error = lpfc_setup_driver_resource_phase2(phba); 7524 if (error) { 7525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7526 "1406 Failed to set up driver resource.\n"); 7527 goto out_free_iocb_list; 7528 } 7529 7530 /* Create SCSI host to the physical port */ 7531 error = lpfc_create_shost(phba); 7532 if (error) { 7533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7534 "1407 Failed to create scsi host.\n"); 7535 goto out_unset_driver_resource; 7536 } 7537 7538 /* Configure sysfs attributes */ 7539 vport = phba->pport; 7540 error = lpfc_alloc_sysfs_attr(vport); 7541 if (error) { 7542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7543 "1476 Failed to allocate sysfs attr\n"); 7544 goto out_destroy_shost; 7545 } 7546 7547 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7548 /* Now, trying to enable interrupt and bring up the device */ 7549 cfg_mode = phba->cfg_use_msi; 7550 while (true) { 7551 /* Put device to a known state before enabling interrupt */ 7552 lpfc_stop_port(phba); 7553 /* Configure and enable interrupt */ 7554 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7555 if (intr_mode == LPFC_INTR_ERROR) { 7556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7557 "0431 Failed to enable interrupt.\n"); 7558 error = -ENODEV; 7559 goto out_free_sysfs_attr; 7560 } 7561 /* SLI-3 HBA setup */ 7562 if (lpfc_sli_hba_setup(phba)) { 7563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7564 "1477 Failed to set up hba\n"); 7565 error = -ENODEV; 7566 goto out_remove_device; 7567 } 7568 7569 /* Wait 50ms for the interrupts of previous mailbox commands */ 7570 msleep(50); 7571 /* Check active interrupts on message signaled interrupts */ 7572 if (intr_mode == 0 || 7573 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7574 /* Log the current active interrupt mode */ 7575 phba->intr_mode = intr_mode; 7576 lpfc_log_intr_mode(phba, intr_mode); 7577 break; 7578 } else { 7579 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7580 "0447 Configure interrupt mode (%d) " 7581 "failed active interrupt test.\n", 7582 intr_mode); 7583 /* Disable the current interrupt mode */ 7584 lpfc_sli_disable_intr(phba); 7585 /* Try next level of interrupt mode */ 7586 cfg_mode = --intr_mode; 7587 } 7588 } 7589 7590 /* Perform post initialization setup */ 7591 lpfc_post_init_setup(phba); 7592 7593 /* Check if there are static vports to be created. */ 7594 lpfc_create_static_vport(phba); 7595 7596 return 0; 7597 7598 out_remove_device: 7599 lpfc_unset_hba(phba); 7600 out_free_sysfs_attr: 7601 lpfc_free_sysfs_attr(vport); 7602 out_destroy_shost: 7603 lpfc_destroy_shost(phba); 7604 out_unset_driver_resource: 7605 lpfc_unset_driver_resource_phase2(phba); 7606 out_free_iocb_list: 7607 lpfc_free_iocb_list(phba); 7608 out_unset_driver_resource_s3: 7609 lpfc_sli_driver_resource_unset(phba); 7610 out_unset_pci_mem_s3: 7611 lpfc_sli_pci_mem_unset(phba); 7612 out_disable_pci_dev: 7613 lpfc_disable_pci_dev(phba); 7614 if (shost) 7615 scsi_host_put(shost); 7616 out_free_phba: 7617 lpfc_hba_free(phba); 7618 return error; 7619 } 7620 7621 /** 7622 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7623 * @pdev: pointer to PCI device 7624 * 7625 * This routine is to be called to disattach a device with SLI-3 interface 7626 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7627 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7628 * device to be removed from the PCI subsystem properly. 7629 **/ 7630 static void __devexit 7631 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7632 { 7633 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7634 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7635 struct lpfc_vport **vports; 7636 struct lpfc_hba *phba = vport->phba; 7637 int i; 7638 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7639 7640 spin_lock_irq(&phba->hbalock); 7641 vport->load_flag |= FC_UNLOADING; 7642 spin_unlock_irq(&phba->hbalock); 7643 7644 lpfc_free_sysfs_attr(vport); 7645 7646 /* Release all the vports against this physical port */ 7647 vports = lpfc_create_vport_work_array(phba); 7648 if (vports != NULL) 7649 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7650 fc_vport_terminate(vports[i]->fc_vport); 7651 lpfc_destroy_vport_work_array(phba, vports); 7652 7653 /* Remove FC host and then SCSI host with the physical port */ 7654 fc_remove_host(shost); 7655 scsi_remove_host(shost); 7656 lpfc_cleanup(vport); 7657 7658 /* 7659 * Bring down the SLI Layer. This step disable all interrupts, 7660 * clears the rings, discards all mailbox commands, and resets 7661 * the HBA. 7662 */ 7663 7664 /* HBA interrupt will be diabled after this call */ 7665 lpfc_sli_hba_down(phba); 7666 /* Stop kthread signal shall trigger work_done one more time */ 7667 kthread_stop(phba->worker_thread); 7668 /* Final cleanup of txcmplq and reset the HBA */ 7669 lpfc_sli_brdrestart(phba); 7670 7671 lpfc_stop_hba_timers(phba); 7672 spin_lock_irq(&phba->hbalock); 7673 list_del_init(&vport->listentry); 7674 spin_unlock_irq(&phba->hbalock); 7675 7676 lpfc_debugfs_terminate(vport); 7677 7678 /* Disable interrupt */ 7679 lpfc_sli_disable_intr(phba); 7680 7681 pci_set_drvdata(pdev, NULL); 7682 scsi_host_put(shost); 7683 7684 /* 7685 * Call scsi_free before mem_free since scsi bufs are released to their 7686 * corresponding pools here. 7687 */ 7688 lpfc_scsi_free(phba); 7689 lpfc_mem_free_all(phba); 7690 7691 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7692 phba->hbqslimp.virt, phba->hbqslimp.phys); 7693 7694 /* Free resources associated with SLI2 interface */ 7695 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7696 phba->slim2p.virt, phba->slim2p.phys); 7697 7698 /* unmap adapter SLIM and Control Registers */ 7699 iounmap(phba->ctrl_regs_memmap_p); 7700 iounmap(phba->slim_memmap_p); 7701 7702 lpfc_hba_free(phba); 7703 7704 pci_release_selected_regions(pdev, bars); 7705 pci_disable_device(pdev); 7706 } 7707 7708 /** 7709 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7710 * @pdev: pointer to PCI device 7711 * @msg: power management message 7712 * 7713 * This routine is to be called from the kernel's PCI subsystem to support 7714 * system Power Management (PM) to device with SLI-3 interface spec. When 7715 * PM invokes this method, it quiesces the device by stopping the driver's 7716 * worker thread for the device, turning off device's interrupt and DMA, 7717 * and bring the device offline. Note that as the driver implements the 7718 * minimum PM requirements to a power-aware driver's PM support for the 7719 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7720 * to the suspend() method call will be treated as SUSPEND and the driver will 7721 * fully reinitialize its device during resume() method call, the driver will 7722 * set device to PCI_D3hot state in PCI config space instead of setting it 7723 * according to the @msg provided by the PM. 7724 * 7725 * Return code 7726 * 0 - driver suspended the device 7727 * Error otherwise 7728 **/ 7729 static int 7730 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7731 { 7732 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7733 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7734 7735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7736 "0473 PCI device Power Management suspend.\n"); 7737 7738 /* Bring down the device */ 7739 lpfc_offline_prep(phba); 7740 lpfc_offline(phba); 7741 kthread_stop(phba->worker_thread); 7742 7743 /* Disable interrupt from device */ 7744 lpfc_sli_disable_intr(phba); 7745 7746 /* Save device state to PCI config space */ 7747 pci_save_state(pdev); 7748 pci_set_power_state(pdev, PCI_D3hot); 7749 7750 return 0; 7751 } 7752 7753 /** 7754 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7755 * @pdev: pointer to PCI device 7756 * 7757 * This routine is to be called from the kernel's PCI subsystem to support 7758 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7759 * invokes this method, it restores the device's PCI config space state and 7760 * fully reinitializes the device and brings it online. Note that as the 7761 * driver implements the minimum PM requirements to a power-aware driver's 7762 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7763 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7764 * driver will fully reinitialize its device during resume() method call, 7765 * the device will be set to PCI_D0 directly in PCI config space before 7766 * restoring the state. 7767 * 7768 * Return code 7769 * 0 - driver suspended the device 7770 * Error otherwise 7771 **/ 7772 static int 7773 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7774 { 7775 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7776 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7777 uint32_t intr_mode; 7778 int error; 7779 7780 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7781 "0452 PCI device Power Management resume.\n"); 7782 7783 /* Restore device state from PCI config space */ 7784 pci_set_power_state(pdev, PCI_D0); 7785 pci_restore_state(pdev); 7786 7787 /* 7788 * As the new kernel behavior of pci_restore_state() API call clears 7789 * device saved_state flag, need to save the restored state again. 7790 */ 7791 pci_save_state(pdev); 7792 7793 if (pdev->is_busmaster) 7794 pci_set_master(pdev); 7795 7796 /* Startup the kernel thread for this host adapter. */ 7797 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7798 "lpfc_worker_%d", phba->brd_no); 7799 if (IS_ERR(phba->worker_thread)) { 7800 error = PTR_ERR(phba->worker_thread); 7801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7802 "0434 PM resume failed to start worker " 7803 "thread: error=x%x.\n", error); 7804 return error; 7805 } 7806 7807 /* Configure and enable interrupt */ 7808 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7809 if (intr_mode == LPFC_INTR_ERROR) { 7810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7811 "0430 PM resume Failed to enable interrupt\n"); 7812 return -EIO; 7813 } else 7814 phba->intr_mode = intr_mode; 7815 7816 /* Restart HBA and bring it online */ 7817 lpfc_sli_brdrestart(phba); 7818 lpfc_online(phba); 7819 7820 /* Log the current active interrupt mode */ 7821 lpfc_log_intr_mode(phba, phba->intr_mode); 7822 7823 return 0; 7824 } 7825 7826 /** 7827 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7828 * @phba: pointer to lpfc hba data structure. 7829 * 7830 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7831 * aborts all the outstanding SCSI I/Os to the pci device. 7832 **/ 7833 static void 7834 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7835 { 7836 struct lpfc_sli *psli = &phba->sli; 7837 struct lpfc_sli_ring *pring; 7838 7839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7840 "2723 PCI channel I/O abort preparing for recovery\n"); 7841 7842 /* 7843 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7844 * and let the SCSI mid-layer to retry them to recover. 7845 */ 7846 pring = &psli->ring[psli->fcp_ring]; 7847 lpfc_sli_abort_iocb_ring(phba, pring); 7848 } 7849 7850 /** 7851 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7852 * @phba: pointer to lpfc hba data structure. 7853 * 7854 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7855 * disables the device interrupt and pci device, and aborts the internal FCP 7856 * pending I/Os. 7857 **/ 7858 static void 7859 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7860 { 7861 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7862 "2710 PCI channel disable preparing for reset\n"); 7863 7864 /* Block any management I/Os to the device */ 7865 lpfc_block_mgmt_io(phba); 7866 7867 /* Block all SCSI devices' I/Os on the host */ 7868 lpfc_scsi_dev_block(phba); 7869 7870 /* stop all timers */ 7871 lpfc_stop_hba_timers(phba); 7872 7873 /* Disable interrupt and pci device */ 7874 lpfc_sli_disable_intr(phba); 7875 pci_disable_device(phba->pcidev); 7876 7877 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7878 lpfc_sli_flush_fcp_rings(phba); 7879 } 7880 7881 /** 7882 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7883 * @phba: pointer to lpfc hba data structure. 7884 * 7885 * This routine is called to prepare the SLI3 device for PCI slot permanently 7886 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7887 * pending I/Os. 7888 **/ 7889 static void 7890 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7891 { 7892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7893 "2711 PCI channel permanent disable for failure\n"); 7894 /* Block all SCSI devices' I/Os on the host */ 7895 lpfc_scsi_dev_block(phba); 7896 7897 /* stop all timers */ 7898 lpfc_stop_hba_timers(phba); 7899 7900 /* Clean up all driver's outstanding SCSI I/Os */ 7901 lpfc_sli_flush_fcp_rings(phba); 7902 } 7903 7904 /** 7905 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7906 * @pdev: pointer to PCI device. 7907 * @state: the current PCI connection state. 7908 * 7909 * This routine is called from the PCI subsystem for I/O error handling to 7910 * device with SLI-3 interface spec. This function is called by the PCI 7911 * subsystem after a PCI bus error affecting this device has been detected. 7912 * When this function is invoked, it will need to stop all the I/Os and 7913 * interrupt(s) to the device. Once that is done, it will return 7914 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7915 * as desired. 7916 * 7917 * Return codes 7918 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7919 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7920 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7921 **/ 7922 static pci_ers_result_t 7923 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7924 { 7925 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7926 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7927 7928 switch (state) { 7929 case pci_channel_io_normal: 7930 /* Non-fatal error, prepare for recovery */ 7931 lpfc_sli_prep_dev_for_recover(phba); 7932 return PCI_ERS_RESULT_CAN_RECOVER; 7933 case pci_channel_io_frozen: 7934 /* Fatal error, prepare for slot reset */ 7935 lpfc_sli_prep_dev_for_reset(phba); 7936 return PCI_ERS_RESULT_NEED_RESET; 7937 case pci_channel_io_perm_failure: 7938 /* Permanent failure, prepare for device down */ 7939 lpfc_sli_prep_dev_for_perm_failure(phba); 7940 return PCI_ERS_RESULT_DISCONNECT; 7941 default: 7942 /* Unknown state, prepare and request slot reset */ 7943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7944 "0472 Unknown PCI error state: x%x\n", state); 7945 lpfc_sli_prep_dev_for_reset(phba); 7946 return PCI_ERS_RESULT_NEED_RESET; 7947 } 7948 } 7949 7950 /** 7951 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7952 * @pdev: pointer to PCI device. 7953 * 7954 * This routine is called from the PCI subsystem for error handling to 7955 * device with SLI-3 interface spec. This is called after PCI bus has been 7956 * reset to restart the PCI card from scratch, as if from a cold-boot. 7957 * During the PCI subsystem error recovery, after driver returns 7958 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7959 * recovery and then call this routine before calling the .resume method 7960 * to recover the device. This function will initialize the HBA device, 7961 * enable the interrupt, but it will just put the HBA to offline state 7962 * without passing any I/O traffic. 7963 * 7964 * Return codes 7965 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7966 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7967 */ 7968 static pci_ers_result_t 7969 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7970 { 7971 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7972 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7973 struct lpfc_sli *psli = &phba->sli; 7974 uint32_t intr_mode; 7975 7976 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7977 if (pci_enable_device_mem(pdev)) { 7978 printk(KERN_ERR "lpfc: Cannot re-enable " 7979 "PCI device after reset.\n"); 7980 return PCI_ERS_RESULT_DISCONNECT; 7981 } 7982 7983 pci_restore_state(pdev); 7984 7985 /* 7986 * As the new kernel behavior of pci_restore_state() API call clears 7987 * device saved_state flag, need to save the restored state again. 7988 */ 7989 pci_save_state(pdev); 7990 7991 if (pdev->is_busmaster) 7992 pci_set_master(pdev); 7993 7994 spin_lock_irq(&phba->hbalock); 7995 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7996 spin_unlock_irq(&phba->hbalock); 7997 7998 /* Configure and enable interrupt */ 7999 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8000 if (intr_mode == LPFC_INTR_ERROR) { 8001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8002 "0427 Cannot re-enable interrupt after " 8003 "slot reset.\n"); 8004 return PCI_ERS_RESULT_DISCONNECT; 8005 } else 8006 phba->intr_mode = intr_mode; 8007 8008 /* Take device offline, it will perform cleanup */ 8009 lpfc_offline_prep(phba); 8010 lpfc_offline(phba); 8011 lpfc_sli_brdrestart(phba); 8012 8013 /* Log the current active interrupt mode */ 8014 lpfc_log_intr_mode(phba, phba->intr_mode); 8015 8016 return PCI_ERS_RESULT_RECOVERED; 8017 } 8018 8019 /** 8020 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8021 * @pdev: pointer to PCI device 8022 * 8023 * This routine is called from the PCI subsystem for error handling to device 8024 * with SLI-3 interface spec. It is called when kernel error recovery tells 8025 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8026 * error recovery. After this call, traffic can start to flow from this device 8027 * again. 8028 */ 8029 static void 8030 lpfc_io_resume_s3(struct pci_dev *pdev) 8031 { 8032 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8033 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8034 8035 /* Bring device online, it will be no-op for non-fatal error resume */ 8036 lpfc_online(phba); 8037 8038 /* Clean up Advanced Error Reporting (AER) if needed */ 8039 if (phba->hba_flag & HBA_AER_ENABLED) 8040 pci_cleanup_aer_uncorrect_error_status(pdev); 8041 } 8042 8043 /** 8044 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8045 * @phba: pointer to lpfc hba data structure. 8046 * 8047 * returns the number of ELS/CT IOCBs to reserve 8048 **/ 8049 int 8050 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8051 { 8052 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8053 8054 if (phba->sli_rev == LPFC_SLI_REV4) { 8055 if (max_xri <= 100) 8056 return 10; 8057 else if (max_xri <= 256) 8058 return 25; 8059 else if (max_xri <= 512) 8060 return 50; 8061 else if (max_xri <= 1024) 8062 return 100; 8063 else 8064 return 150; 8065 } else 8066 return 0; 8067 } 8068 8069 /** 8070 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8071 * @pdev: pointer to PCI device 8072 * @pid: pointer to PCI device identifier 8073 * 8074 * This routine is called from the kernel's PCI subsystem to device with 8075 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8076 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8077 * information of the device and driver to see if the driver state that it 8078 * can support this kind of device. If the match is successful, the driver 8079 * core invokes this routine. If this routine determines it can claim the HBA, 8080 * it does all the initialization that it needs to do to handle the HBA 8081 * properly. 8082 * 8083 * Return code 8084 * 0 - driver can claim the device 8085 * negative value - driver can not claim the device 8086 **/ 8087 static int __devinit 8088 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8089 { 8090 struct lpfc_hba *phba; 8091 struct lpfc_vport *vport = NULL; 8092 struct Scsi_Host *shost = NULL; 8093 int error; 8094 uint32_t cfg_mode, intr_mode; 8095 int mcnt; 8096 8097 /* Allocate memory for HBA structure */ 8098 phba = lpfc_hba_alloc(pdev); 8099 if (!phba) 8100 return -ENOMEM; 8101 8102 /* Perform generic PCI device enabling operation */ 8103 error = lpfc_enable_pci_dev(phba); 8104 if (error) { 8105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8106 "1409 Failed to enable pci device.\n"); 8107 goto out_free_phba; 8108 } 8109 8110 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8111 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8112 if (error) 8113 goto out_disable_pci_dev; 8114 8115 /* Set up SLI-4 specific device PCI memory space */ 8116 error = lpfc_sli4_pci_mem_setup(phba); 8117 if (error) { 8118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8119 "1410 Failed to set up pci memory space.\n"); 8120 goto out_disable_pci_dev; 8121 } 8122 8123 /* Set up phase-1 common device driver resources */ 8124 error = lpfc_setup_driver_resource_phase1(phba); 8125 if (error) { 8126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8127 "1411 Failed to set up driver resource.\n"); 8128 goto out_unset_pci_mem_s4; 8129 } 8130 8131 /* Set up SLI-4 Specific device driver resources */ 8132 error = lpfc_sli4_driver_resource_setup(phba); 8133 if (error) { 8134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8135 "1412 Failed to set up driver resource.\n"); 8136 goto out_unset_pci_mem_s4; 8137 } 8138 8139 /* Initialize and populate the iocb list per host */ 8140 8141 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8142 "2821 initialize iocb list %d.\n", 8143 phba->cfg_iocb_cnt*1024); 8144 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8145 8146 if (error) { 8147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8148 "1413 Failed to initialize iocb list.\n"); 8149 goto out_unset_driver_resource_s4; 8150 } 8151 8152 /* Set up common device driver resources */ 8153 error = lpfc_setup_driver_resource_phase2(phba); 8154 if (error) { 8155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8156 "1414 Failed to set up driver resource.\n"); 8157 goto out_free_iocb_list; 8158 } 8159 8160 /* Create SCSI host to the physical port */ 8161 error = lpfc_create_shost(phba); 8162 if (error) { 8163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8164 "1415 Failed to create scsi host.\n"); 8165 goto out_unset_driver_resource; 8166 } 8167 8168 /* Configure sysfs attributes */ 8169 vport = phba->pport; 8170 error = lpfc_alloc_sysfs_attr(vport); 8171 if (error) { 8172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8173 "1416 Failed to allocate sysfs attr\n"); 8174 goto out_destroy_shost; 8175 } 8176 8177 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8178 /* Now, trying to enable interrupt and bring up the device */ 8179 cfg_mode = phba->cfg_use_msi; 8180 while (true) { 8181 /* Put device to a known state before enabling interrupt */ 8182 lpfc_stop_port(phba); 8183 /* Configure and enable interrupt */ 8184 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8185 if (intr_mode == LPFC_INTR_ERROR) { 8186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8187 "0426 Failed to enable interrupt.\n"); 8188 error = -ENODEV; 8189 goto out_free_sysfs_attr; 8190 } 8191 /* Default to single FCP EQ for non-MSI-X */ 8192 if (phba->intr_type != MSIX) 8193 phba->cfg_fcp_eq_count = 1; 8194 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8195 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8196 /* Set up SLI-4 HBA */ 8197 if (lpfc_sli4_hba_setup(phba)) { 8198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8199 "1421 Failed to set up hba\n"); 8200 error = -ENODEV; 8201 goto out_disable_intr; 8202 } 8203 8204 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8205 if (intr_mode != 0) 8206 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8207 LPFC_ACT_INTR_CNT); 8208 8209 /* Check active interrupts received only for MSI/MSI-X */ 8210 if (intr_mode == 0 || 8211 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8212 /* Log the current active interrupt mode */ 8213 phba->intr_mode = intr_mode; 8214 lpfc_log_intr_mode(phba, intr_mode); 8215 break; 8216 } 8217 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8218 "0451 Configure interrupt mode (%d) " 8219 "failed active interrupt test.\n", 8220 intr_mode); 8221 /* Unset the preivous SLI-4 HBA setup */ 8222 lpfc_sli4_unset_hba(phba); 8223 /* Try next level of interrupt mode */ 8224 cfg_mode = --intr_mode; 8225 } 8226 8227 /* Perform post initialization setup */ 8228 lpfc_post_init_setup(phba); 8229 8230 /* Check if there are static vports to be created. */ 8231 lpfc_create_static_vport(phba); 8232 8233 return 0; 8234 8235 out_disable_intr: 8236 lpfc_sli4_disable_intr(phba); 8237 out_free_sysfs_attr: 8238 lpfc_free_sysfs_attr(vport); 8239 out_destroy_shost: 8240 lpfc_destroy_shost(phba); 8241 out_unset_driver_resource: 8242 lpfc_unset_driver_resource_phase2(phba); 8243 out_free_iocb_list: 8244 lpfc_free_iocb_list(phba); 8245 out_unset_driver_resource_s4: 8246 lpfc_sli4_driver_resource_unset(phba); 8247 out_unset_pci_mem_s4: 8248 lpfc_sli4_pci_mem_unset(phba); 8249 out_disable_pci_dev: 8250 lpfc_disable_pci_dev(phba); 8251 if (shost) 8252 scsi_host_put(shost); 8253 out_free_phba: 8254 lpfc_hba_free(phba); 8255 return error; 8256 } 8257 8258 /** 8259 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8260 * @pdev: pointer to PCI device 8261 * 8262 * This routine is called from the kernel's PCI subsystem to device with 8263 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8264 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8265 * device to be removed from the PCI subsystem properly. 8266 **/ 8267 static void __devexit 8268 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8269 { 8270 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8271 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8272 struct lpfc_vport **vports; 8273 struct lpfc_hba *phba = vport->phba; 8274 int i; 8275 8276 /* Mark the device unloading flag */ 8277 spin_lock_irq(&phba->hbalock); 8278 vport->load_flag |= FC_UNLOADING; 8279 spin_unlock_irq(&phba->hbalock); 8280 8281 /* Free the HBA sysfs attributes */ 8282 lpfc_free_sysfs_attr(vport); 8283 8284 /* Release all the vports against this physical port */ 8285 vports = lpfc_create_vport_work_array(phba); 8286 if (vports != NULL) 8287 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8288 fc_vport_terminate(vports[i]->fc_vport); 8289 lpfc_destroy_vport_work_array(phba, vports); 8290 8291 /* Remove FC host and then SCSI host with the physical port */ 8292 fc_remove_host(shost); 8293 scsi_remove_host(shost); 8294 8295 /* Perform cleanup on the physical port */ 8296 lpfc_cleanup(vport); 8297 8298 /* 8299 * Bring down the SLI Layer. This step disables all interrupts, 8300 * clears the rings, discards all mailbox commands, and resets 8301 * the HBA FCoE function. 8302 */ 8303 lpfc_debugfs_terminate(vport); 8304 lpfc_sli4_hba_unset(phba); 8305 8306 spin_lock_irq(&phba->hbalock); 8307 list_del_init(&vport->listentry); 8308 spin_unlock_irq(&phba->hbalock); 8309 8310 /* Perform scsi free before driver resource_unset since scsi 8311 * buffers are released to their corresponding pools here. 8312 */ 8313 lpfc_scsi_free(phba); 8314 lpfc_sli4_driver_resource_unset(phba); 8315 8316 /* Unmap adapter Control and Doorbell registers */ 8317 lpfc_sli4_pci_mem_unset(phba); 8318 8319 /* Release PCI resources and disable device's PCI function */ 8320 scsi_host_put(shost); 8321 lpfc_disable_pci_dev(phba); 8322 8323 /* Finally, free the driver's device data structure */ 8324 lpfc_hba_free(phba); 8325 8326 return; 8327 } 8328 8329 /** 8330 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8331 * @pdev: pointer to PCI device 8332 * @msg: power management message 8333 * 8334 * This routine is called from the kernel's PCI subsystem to support system 8335 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8336 * this method, it quiesces the device by stopping the driver's worker 8337 * thread for the device, turning off device's interrupt and DMA, and bring 8338 * the device offline. Note that as the driver implements the minimum PM 8339 * requirements to a power-aware driver's PM support for suspend/resume -- all 8340 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8341 * method call will be treated as SUSPEND and the driver will fully 8342 * reinitialize its device during resume() method call, the driver will set 8343 * device to PCI_D3hot state in PCI config space instead of setting it 8344 * according to the @msg provided by the PM. 8345 * 8346 * Return code 8347 * 0 - driver suspended the device 8348 * Error otherwise 8349 **/ 8350 static int 8351 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8352 { 8353 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8354 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8355 8356 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8357 "2843 PCI device Power Management suspend.\n"); 8358 8359 /* Bring down the device */ 8360 lpfc_offline_prep(phba); 8361 lpfc_offline(phba); 8362 kthread_stop(phba->worker_thread); 8363 8364 /* Disable interrupt from device */ 8365 lpfc_sli4_disable_intr(phba); 8366 8367 /* Save device state to PCI config space */ 8368 pci_save_state(pdev); 8369 pci_set_power_state(pdev, PCI_D3hot); 8370 8371 return 0; 8372 } 8373 8374 /** 8375 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8376 * @pdev: pointer to PCI device 8377 * 8378 * This routine is called from the kernel's PCI subsystem to support system 8379 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8380 * this method, it restores the device's PCI config space state and fully 8381 * reinitializes the device and brings it online. Note that as the driver 8382 * implements the minimum PM requirements to a power-aware driver's PM for 8383 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8384 * to the suspend() method call will be treated as SUSPEND and the driver 8385 * will fully reinitialize its device during resume() method call, the device 8386 * will be set to PCI_D0 directly in PCI config space before restoring the 8387 * state. 8388 * 8389 * Return code 8390 * 0 - driver suspended the device 8391 * Error otherwise 8392 **/ 8393 static int 8394 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8395 { 8396 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8397 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8398 uint32_t intr_mode; 8399 int error; 8400 8401 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8402 "0292 PCI device Power Management resume.\n"); 8403 8404 /* Restore device state from PCI config space */ 8405 pci_set_power_state(pdev, PCI_D0); 8406 pci_restore_state(pdev); 8407 8408 /* 8409 * As the new kernel behavior of pci_restore_state() API call clears 8410 * device saved_state flag, need to save the restored state again. 8411 */ 8412 pci_save_state(pdev); 8413 8414 if (pdev->is_busmaster) 8415 pci_set_master(pdev); 8416 8417 /* Startup the kernel thread for this host adapter. */ 8418 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8419 "lpfc_worker_%d", phba->brd_no); 8420 if (IS_ERR(phba->worker_thread)) { 8421 error = PTR_ERR(phba->worker_thread); 8422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8423 "0293 PM resume failed to start worker " 8424 "thread: error=x%x.\n", error); 8425 return error; 8426 } 8427 8428 /* Configure and enable interrupt */ 8429 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8430 if (intr_mode == LPFC_INTR_ERROR) { 8431 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8432 "0294 PM resume Failed to enable interrupt\n"); 8433 return -EIO; 8434 } else 8435 phba->intr_mode = intr_mode; 8436 8437 /* Restart HBA and bring it online */ 8438 lpfc_sli_brdrestart(phba); 8439 lpfc_online(phba); 8440 8441 /* Log the current active interrupt mode */ 8442 lpfc_log_intr_mode(phba, phba->intr_mode); 8443 8444 return 0; 8445 } 8446 8447 /** 8448 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8449 * @phba: pointer to lpfc hba data structure. 8450 * 8451 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8452 * aborts all the outstanding SCSI I/Os to the pci device. 8453 **/ 8454 static void 8455 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8456 { 8457 struct lpfc_sli *psli = &phba->sli; 8458 struct lpfc_sli_ring *pring; 8459 8460 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8461 "2828 PCI channel I/O abort preparing for recovery\n"); 8462 /* 8463 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8464 * and let the SCSI mid-layer to retry them to recover. 8465 */ 8466 pring = &psli->ring[psli->fcp_ring]; 8467 lpfc_sli_abort_iocb_ring(phba, pring); 8468 } 8469 8470 /** 8471 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8472 * @phba: pointer to lpfc hba data structure. 8473 * 8474 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8475 * disables the device interrupt and pci device, and aborts the internal FCP 8476 * pending I/Os. 8477 **/ 8478 static void 8479 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8480 { 8481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8482 "2826 PCI channel disable preparing for reset\n"); 8483 8484 /* Block any management I/Os to the device */ 8485 lpfc_block_mgmt_io(phba); 8486 8487 /* Block all SCSI devices' I/Os on the host */ 8488 lpfc_scsi_dev_block(phba); 8489 8490 /* stop all timers */ 8491 lpfc_stop_hba_timers(phba); 8492 8493 /* Disable interrupt and pci device */ 8494 lpfc_sli4_disable_intr(phba); 8495 pci_disable_device(phba->pcidev); 8496 8497 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8498 lpfc_sli_flush_fcp_rings(phba); 8499 } 8500 8501 /** 8502 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 8503 * @phba: pointer to lpfc hba data structure. 8504 * 8505 * This routine is called to prepare the SLI4 device for PCI slot permanently 8506 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8507 * pending I/Os. 8508 **/ 8509 static void 8510 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8511 { 8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8513 "2827 PCI channel permanent disable for failure\n"); 8514 8515 /* Block all SCSI devices' I/Os on the host */ 8516 lpfc_scsi_dev_block(phba); 8517 8518 /* stop all timers */ 8519 lpfc_stop_hba_timers(phba); 8520 8521 /* Clean up all driver's outstanding SCSI I/Os */ 8522 lpfc_sli_flush_fcp_rings(phba); 8523 } 8524 8525 /** 8526 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8527 * @pdev: pointer to PCI device. 8528 * @state: the current PCI connection state. 8529 * 8530 * This routine is called from the PCI subsystem for error handling to device 8531 * with SLI-4 interface spec. This function is called by the PCI subsystem 8532 * after a PCI bus error affecting this device has been detected. When this 8533 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8534 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8535 * for the PCI subsystem to perform proper recovery as desired. 8536 * 8537 * Return codes 8538 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8539 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8540 **/ 8541 static pci_ers_result_t 8542 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8543 { 8544 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8545 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8546 8547 switch (state) { 8548 case pci_channel_io_normal: 8549 /* Non-fatal error, prepare for recovery */ 8550 lpfc_sli4_prep_dev_for_recover(phba); 8551 return PCI_ERS_RESULT_CAN_RECOVER; 8552 case pci_channel_io_frozen: 8553 /* Fatal error, prepare for slot reset */ 8554 lpfc_sli4_prep_dev_for_reset(phba); 8555 return PCI_ERS_RESULT_NEED_RESET; 8556 case pci_channel_io_perm_failure: 8557 /* Permanent failure, prepare for device down */ 8558 lpfc_sli4_prep_dev_for_perm_failure(phba); 8559 return PCI_ERS_RESULT_DISCONNECT; 8560 default: 8561 /* Unknown state, prepare and request slot reset */ 8562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8563 "2825 Unknown PCI error state: x%x\n", state); 8564 lpfc_sli4_prep_dev_for_reset(phba); 8565 return PCI_ERS_RESULT_NEED_RESET; 8566 } 8567 } 8568 8569 /** 8570 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8571 * @pdev: pointer to PCI device. 8572 * 8573 * This routine is called from the PCI subsystem for error handling to device 8574 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8575 * restart the PCI card from scratch, as if from a cold-boot. During the 8576 * PCI subsystem error recovery, after the driver returns 8577 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8578 * recovery and then call this routine before calling the .resume method to 8579 * recover the device. This function will initialize the HBA device, enable 8580 * the interrupt, but it will just put the HBA to offline state without 8581 * passing any I/O traffic. 8582 * 8583 * Return codes 8584 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8585 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8586 */ 8587 static pci_ers_result_t 8588 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8589 { 8590 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8591 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8592 struct lpfc_sli *psli = &phba->sli; 8593 uint32_t intr_mode; 8594 8595 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8596 if (pci_enable_device_mem(pdev)) { 8597 printk(KERN_ERR "lpfc: Cannot re-enable " 8598 "PCI device after reset.\n"); 8599 return PCI_ERS_RESULT_DISCONNECT; 8600 } 8601 8602 pci_restore_state(pdev); 8603 if (pdev->is_busmaster) 8604 pci_set_master(pdev); 8605 8606 spin_lock_irq(&phba->hbalock); 8607 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8608 spin_unlock_irq(&phba->hbalock); 8609 8610 /* Configure and enable interrupt */ 8611 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8612 if (intr_mode == LPFC_INTR_ERROR) { 8613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8614 "2824 Cannot re-enable interrupt after " 8615 "slot reset.\n"); 8616 return PCI_ERS_RESULT_DISCONNECT; 8617 } else 8618 phba->intr_mode = intr_mode; 8619 8620 /* Log the current active interrupt mode */ 8621 lpfc_log_intr_mode(phba, phba->intr_mode); 8622 8623 return PCI_ERS_RESULT_RECOVERED; 8624 } 8625 8626 /** 8627 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8628 * @pdev: pointer to PCI device 8629 * 8630 * This routine is called from the PCI subsystem for error handling to device 8631 * with SLI-4 interface spec. It is called when kernel error recovery tells 8632 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8633 * error recovery. After this call, traffic can start to flow from this device 8634 * again. 8635 **/ 8636 static void 8637 lpfc_io_resume_s4(struct pci_dev *pdev) 8638 { 8639 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8640 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8641 8642 /* 8643 * In case of slot reset, as function reset is performed through 8644 * mailbox command which needs DMA to be enabled, this operation 8645 * has to be moved to the io resume phase. Taking device offline 8646 * will perform the necessary cleanup. 8647 */ 8648 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 8649 /* Perform device reset */ 8650 lpfc_offline_prep(phba); 8651 lpfc_offline(phba); 8652 lpfc_sli_brdrestart(phba); 8653 /* Bring the device back online */ 8654 lpfc_online(phba); 8655 } 8656 8657 /* Clean up Advanced Error Reporting (AER) if needed */ 8658 if (phba->hba_flag & HBA_AER_ENABLED) 8659 pci_cleanup_aer_uncorrect_error_status(pdev); 8660 } 8661 8662 /** 8663 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8664 * @pdev: pointer to PCI device 8665 * @pid: pointer to PCI device identifier 8666 * 8667 * This routine is to be registered to the kernel's PCI subsystem. When an 8668 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8669 * at PCI device-specific information of the device and driver to see if the 8670 * driver state that it can support this kind of device. If the match is 8671 * successful, the driver core invokes this routine. This routine dispatches 8672 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8673 * do all the initialization that it needs to do to handle the HBA device 8674 * properly. 8675 * 8676 * Return code 8677 * 0 - driver can claim the device 8678 * negative value - driver can not claim the device 8679 **/ 8680 static int __devinit 8681 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8682 { 8683 int rc; 8684 struct lpfc_sli_intf intf; 8685 8686 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8687 return -ENODEV; 8688 8689 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8690 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8691 rc = lpfc_pci_probe_one_s4(pdev, pid); 8692 else 8693 rc = lpfc_pci_probe_one_s3(pdev, pid); 8694 8695 return rc; 8696 } 8697 8698 /** 8699 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8700 * @pdev: pointer to PCI device 8701 * 8702 * This routine is to be registered to the kernel's PCI subsystem. When an 8703 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8704 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8705 * remove routine, which will perform all the necessary cleanup for the 8706 * device to be removed from the PCI subsystem properly. 8707 **/ 8708 static void __devexit 8709 lpfc_pci_remove_one(struct pci_dev *pdev) 8710 { 8711 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8712 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8713 8714 switch (phba->pci_dev_grp) { 8715 case LPFC_PCI_DEV_LP: 8716 lpfc_pci_remove_one_s3(pdev); 8717 break; 8718 case LPFC_PCI_DEV_OC: 8719 lpfc_pci_remove_one_s4(pdev); 8720 break; 8721 default: 8722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8723 "1424 Invalid PCI device group: 0x%x\n", 8724 phba->pci_dev_grp); 8725 break; 8726 } 8727 return; 8728 } 8729 8730 /** 8731 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8732 * @pdev: pointer to PCI device 8733 * @msg: power management message 8734 * 8735 * This routine is to be registered to the kernel's PCI subsystem to support 8736 * system Power Management (PM). When PM invokes this method, it dispatches 8737 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8738 * suspend the device. 8739 * 8740 * Return code 8741 * 0 - driver suspended the device 8742 * Error otherwise 8743 **/ 8744 static int 8745 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8746 { 8747 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8748 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8749 int rc = -ENODEV; 8750 8751 switch (phba->pci_dev_grp) { 8752 case LPFC_PCI_DEV_LP: 8753 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8754 break; 8755 case LPFC_PCI_DEV_OC: 8756 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8757 break; 8758 default: 8759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8760 "1425 Invalid PCI device group: 0x%x\n", 8761 phba->pci_dev_grp); 8762 break; 8763 } 8764 return rc; 8765 } 8766 8767 /** 8768 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8769 * @pdev: pointer to PCI device 8770 * 8771 * This routine is to be registered to the kernel's PCI subsystem to support 8772 * system Power Management (PM). When PM invokes this method, it dispatches 8773 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8774 * resume the device. 8775 * 8776 * Return code 8777 * 0 - driver suspended the device 8778 * Error otherwise 8779 **/ 8780 static int 8781 lpfc_pci_resume_one(struct pci_dev *pdev) 8782 { 8783 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8784 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8785 int rc = -ENODEV; 8786 8787 switch (phba->pci_dev_grp) { 8788 case LPFC_PCI_DEV_LP: 8789 rc = lpfc_pci_resume_one_s3(pdev); 8790 break; 8791 case LPFC_PCI_DEV_OC: 8792 rc = lpfc_pci_resume_one_s4(pdev); 8793 break; 8794 default: 8795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8796 "1426 Invalid PCI device group: 0x%x\n", 8797 phba->pci_dev_grp); 8798 break; 8799 } 8800 return rc; 8801 } 8802 8803 /** 8804 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8805 * @pdev: pointer to PCI device. 8806 * @state: the current PCI connection state. 8807 * 8808 * This routine is registered to the PCI subsystem for error handling. This 8809 * function is called by the PCI subsystem after a PCI bus error affecting 8810 * this device has been detected. When this routine is invoked, it dispatches 8811 * the action to the proper SLI-3 or SLI-4 device error detected handling 8812 * routine, which will perform the proper error detected operation. 8813 * 8814 * Return codes 8815 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8816 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8817 **/ 8818 static pci_ers_result_t 8819 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8820 { 8821 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8822 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8823 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8824 8825 switch (phba->pci_dev_grp) { 8826 case LPFC_PCI_DEV_LP: 8827 rc = lpfc_io_error_detected_s3(pdev, state); 8828 break; 8829 case LPFC_PCI_DEV_OC: 8830 rc = lpfc_io_error_detected_s4(pdev, state); 8831 break; 8832 default: 8833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8834 "1427 Invalid PCI device group: 0x%x\n", 8835 phba->pci_dev_grp); 8836 break; 8837 } 8838 return rc; 8839 } 8840 8841 /** 8842 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8843 * @pdev: pointer to PCI device. 8844 * 8845 * This routine is registered to the PCI subsystem for error handling. This 8846 * function is called after PCI bus has been reset to restart the PCI card 8847 * from scratch, as if from a cold-boot. When this routine is invoked, it 8848 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8849 * routine, which will perform the proper device reset. 8850 * 8851 * Return codes 8852 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8853 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8854 **/ 8855 static pci_ers_result_t 8856 lpfc_io_slot_reset(struct pci_dev *pdev) 8857 { 8858 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8859 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8860 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8861 8862 switch (phba->pci_dev_grp) { 8863 case LPFC_PCI_DEV_LP: 8864 rc = lpfc_io_slot_reset_s3(pdev); 8865 break; 8866 case LPFC_PCI_DEV_OC: 8867 rc = lpfc_io_slot_reset_s4(pdev); 8868 break; 8869 default: 8870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8871 "1428 Invalid PCI device group: 0x%x\n", 8872 phba->pci_dev_grp); 8873 break; 8874 } 8875 return rc; 8876 } 8877 8878 /** 8879 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8880 * @pdev: pointer to PCI device 8881 * 8882 * This routine is registered to the PCI subsystem for error handling. It 8883 * is called when kernel error recovery tells the lpfc driver that it is 8884 * OK to resume normal PCI operation after PCI bus error recovery. When 8885 * this routine is invoked, it dispatches the action to the proper SLI-3 8886 * or SLI-4 device io_resume routine, which will resume the device operation. 8887 **/ 8888 static void 8889 lpfc_io_resume(struct pci_dev *pdev) 8890 { 8891 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8892 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8893 8894 switch (phba->pci_dev_grp) { 8895 case LPFC_PCI_DEV_LP: 8896 lpfc_io_resume_s3(pdev); 8897 break; 8898 case LPFC_PCI_DEV_OC: 8899 lpfc_io_resume_s4(pdev); 8900 break; 8901 default: 8902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8903 "1429 Invalid PCI device group: 0x%x\n", 8904 phba->pci_dev_grp); 8905 break; 8906 } 8907 return; 8908 } 8909 8910 static struct pci_device_id lpfc_id_table[] = { 8911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8912 PCI_ANY_ID, PCI_ANY_ID, }, 8913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8914 PCI_ANY_ID, PCI_ANY_ID, }, 8915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8916 PCI_ANY_ID, PCI_ANY_ID, }, 8917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8918 PCI_ANY_ID, PCI_ANY_ID, }, 8919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8920 PCI_ANY_ID, PCI_ANY_ID, }, 8921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8922 PCI_ANY_ID, PCI_ANY_ID, }, 8923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8924 PCI_ANY_ID, PCI_ANY_ID, }, 8925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8926 PCI_ANY_ID, PCI_ANY_ID, }, 8927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8928 PCI_ANY_ID, PCI_ANY_ID, }, 8929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8930 PCI_ANY_ID, PCI_ANY_ID, }, 8931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8932 PCI_ANY_ID, PCI_ANY_ID, }, 8933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8934 PCI_ANY_ID, PCI_ANY_ID, }, 8935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8936 PCI_ANY_ID, PCI_ANY_ID, }, 8937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8938 PCI_ANY_ID, PCI_ANY_ID, }, 8939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8940 PCI_ANY_ID, PCI_ANY_ID, }, 8941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8942 PCI_ANY_ID, PCI_ANY_ID, }, 8943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8944 PCI_ANY_ID, PCI_ANY_ID, }, 8945 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8946 PCI_ANY_ID, PCI_ANY_ID, }, 8947 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8948 PCI_ANY_ID, PCI_ANY_ID, }, 8949 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8950 PCI_ANY_ID, PCI_ANY_ID, }, 8951 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8952 PCI_ANY_ID, PCI_ANY_ID, }, 8953 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8954 PCI_ANY_ID, PCI_ANY_ID, }, 8955 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8956 PCI_ANY_ID, PCI_ANY_ID, }, 8957 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8958 PCI_ANY_ID, PCI_ANY_ID, }, 8959 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8960 PCI_ANY_ID, PCI_ANY_ID, }, 8961 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8962 PCI_ANY_ID, PCI_ANY_ID, }, 8963 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8964 PCI_ANY_ID, PCI_ANY_ID, }, 8965 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8966 PCI_ANY_ID, PCI_ANY_ID, }, 8967 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8968 PCI_ANY_ID, PCI_ANY_ID, }, 8969 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8970 PCI_ANY_ID, PCI_ANY_ID, }, 8971 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8972 PCI_ANY_ID, PCI_ANY_ID, }, 8973 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8974 PCI_ANY_ID, PCI_ANY_ID, }, 8975 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 8976 PCI_ANY_ID, PCI_ANY_ID, }, 8977 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 8978 PCI_ANY_ID, PCI_ANY_ID, }, 8979 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 8980 PCI_ANY_ID, PCI_ANY_ID, }, 8981 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 8982 PCI_ANY_ID, PCI_ANY_ID, }, 8983 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 8984 PCI_ANY_ID, PCI_ANY_ID, }, 8985 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 8986 PCI_ANY_ID, PCI_ANY_ID, }, 8987 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 8988 PCI_ANY_ID, PCI_ANY_ID, }, 8989 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 8990 PCI_ANY_ID, PCI_ANY_ID, }, 8991 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 8992 PCI_ANY_ID, PCI_ANY_ID, }, 8993 { 0 } 8994 }; 8995 8996 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 8997 8998 static struct pci_error_handlers lpfc_err_handler = { 8999 .error_detected = lpfc_io_error_detected, 9000 .slot_reset = lpfc_io_slot_reset, 9001 .resume = lpfc_io_resume, 9002 }; 9003 9004 static struct pci_driver lpfc_driver = { 9005 .name = LPFC_DRIVER_NAME, 9006 .id_table = lpfc_id_table, 9007 .probe = lpfc_pci_probe_one, 9008 .remove = __devexit_p(lpfc_pci_remove_one), 9009 .suspend = lpfc_pci_suspend_one, 9010 .resume = lpfc_pci_resume_one, 9011 .err_handler = &lpfc_err_handler, 9012 }; 9013 9014 /** 9015 * lpfc_init - lpfc module initialization routine 9016 * 9017 * This routine is to be invoked when the lpfc module is loaded into the 9018 * kernel. The special kernel macro module_init() is used to indicate the 9019 * role of this routine to the kernel as lpfc module entry point. 9020 * 9021 * Return codes 9022 * 0 - successful 9023 * -ENOMEM - FC attach transport failed 9024 * all others - failed 9025 */ 9026 static int __init 9027 lpfc_init(void) 9028 { 9029 int error = 0; 9030 9031 printk(LPFC_MODULE_DESC "\n"); 9032 printk(LPFC_COPYRIGHT "\n"); 9033 9034 if (lpfc_enable_npiv) { 9035 lpfc_transport_functions.vport_create = lpfc_vport_create; 9036 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9037 } 9038 lpfc_transport_template = 9039 fc_attach_transport(&lpfc_transport_functions); 9040 if (lpfc_transport_template == NULL) 9041 return -ENOMEM; 9042 if (lpfc_enable_npiv) { 9043 lpfc_vport_transport_template = 9044 fc_attach_transport(&lpfc_vport_transport_functions); 9045 if (lpfc_vport_transport_template == NULL) { 9046 fc_release_transport(lpfc_transport_template); 9047 return -ENOMEM; 9048 } 9049 } 9050 error = pci_register_driver(&lpfc_driver); 9051 if (error) { 9052 fc_release_transport(lpfc_transport_template); 9053 if (lpfc_enable_npiv) 9054 fc_release_transport(lpfc_vport_transport_template); 9055 } 9056 9057 return error; 9058 } 9059 9060 /** 9061 * lpfc_exit - lpfc module removal routine 9062 * 9063 * This routine is invoked when the lpfc module is removed from the kernel. 9064 * The special kernel macro module_exit() is used to indicate the role of 9065 * this routine to the kernel as lpfc module exit point. 9066 */ 9067 static void __exit 9068 lpfc_exit(void) 9069 { 9070 pci_unregister_driver(&lpfc_driver); 9071 fc_release_transport(lpfc_transport_template); 9072 if (lpfc_enable_npiv) 9073 fc_release_transport(lpfc_vport_transport_template); 9074 if (_dump_buf_data) { 9075 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9076 "_dump_buf_data at 0x%p\n", 9077 (1L << _dump_buf_data_order), _dump_buf_data); 9078 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9079 } 9080 9081 if (_dump_buf_dif) { 9082 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9083 "_dump_buf_dif at 0x%p\n", 9084 (1L << _dump_buf_dif_order), _dump_buf_dif); 9085 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9086 } 9087 } 9088 9089 module_init(lpfc_init); 9090 module_exit(lpfc_exit); 9091 MODULE_LICENSE("GPL"); 9092 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9093 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9094 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9095