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 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 818 * @phba: pointer to lpfc HBA data structure. 819 * 820 * This routine will do uninitialization after the HBA is reset when bring 821 * down the SLI Layer. 822 * 823 * Return codes 824 * 0 - success. 825 * Any other value - error. 826 **/ 827 static int 828 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 829 { 830 struct lpfc_scsi_buf *psb, *psb_next; 831 LIST_HEAD(aborts); 832 int ret; 833 unsigned long iflag = 0; 834 struct lpfc_sglq *sglq_entry = NULL; 835 836 ret = lpfc_hba_down_post_s3(phba); 837 if (ret) 838 return ret; 839 /* At this point in time the HBA is either reset or DOA. Either 840 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 841 * on the lpfc_sgl_list so that it can either be freed if the 842 * driver is unloading or reposted if the driver is restarting 843 * the port. 844 */ 845 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 846 /* scsl_buf_list */ 847 /* abts_sgl_list_lock required because worker thread uses this 848 * list. 849 */ 850 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 851 list_for_each_entry(sglq_entry, 852 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 853 sglq_entry->state = SGL_FREED; 854 855 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 856 &phba->sli4_hba.lpfc_sgl_list); 857 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 858 /* abts_scsi_buf_list_lock required because worker thread uses this 859 * list. 860 */ 861 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 862 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 863 &aborts); 864 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 865 spin_unlock_irq(&phba->hbalock); 866 867 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 868 psb->pCmd = NULL; 869 psb->status = IOSTAT_SUCCESS; 870 } 871 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 872 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 873 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 874 return 0; 875 } 876 877 /** 878 * lpfc_hba_down_post - Wrapper func for hba down post routine 879 * @phba: pointer to lpfc HBA data structure. 880 * 881 * This routine wraps the actual SLI3 or SLI4 routine for performing 882 * uninitialization after the HBA is reset when bring down the SLI Layer. 883 * 884 * Return codes 885 * 0 - success. 886 * Any other value - error. 887 **/ 888 int 889 lpfc_hba_down_post(struct lpfc_hba *phba) 890 { 891 return (*phba->lpfc_hba_down_post)(phba); 892 } 893 894 /** 895 * lpfc_hb_timeout - The HBA-timer timeout handler 896 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 897 * 898 * This is the HBA-timer timeout handler registered to the lpfc driver. When 899 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 900 * work-port-events bitmap and the worker thread is notified. This timeout 901 * event will be used by the worker thread to invoke the actual timeout 902 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 903 * be performed in the timeout handler and the HBA timeout event bit shall 904 * be cleared by the worker thread after it has taken the event bitmap out. 905 **/ 906 static void 907 lpfc_hb_timeout(unsigned long ptr) 908 { 909 struct lpfc_hba *phba; 910 uint32_t tmo_posted; 911 unsigned long iflag; 912 913 phba = (struct lpfc_hba *)ptr; 914 915 /* Check for heart beat timeout conditions */ 916 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 917 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 918 if (!tmo_posted) 919 phba->pport->work_port_events |= WORKER_HB_TMO; 920 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 921 922 /* Tell the worker thread there is work to do */ 923 if (!tmo_posted) 924 lpfc_worker_wake_up(phba); 925 return; 926 } 927 928 /** 929 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 930 * @phba: pointer to lpfc hba data structure. 931 * @pmboxq: pointer to the driver internal queue element for mailbox command. 932 * 933 * This is the callback function to the lpfc heart-beat mailbox command. 934 * If configured, the lpfc driver issues the heart-beat mailbox command to 935 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 936 * heart-beat mailbox command is issued, the driver shall set up heart-beat 937 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 938 * heart-beat outstanding state. Once the mailbox command comes back and 939 * no error conditions detected, the heart-beat mailbox command timer is 940 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 941 * state is cleared for the next heart-beat. If the timer expired with the 942 * heart-beat outstanding state set, the driver will put the HBA offline. 943 **/ 944 static void 945 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 946 { 947 unsigned long drvr_flag; 948 949 spin_lock_irqsave(&phba->hbalock, drvr_flag); 950 phba->hb_outstanding = 0; 951 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 952 953 /* Check and reset heart-beat timer is necessary */ 954 mempool_free(pmboxq, phba->mbox_mem_pool); 955 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 956 !(phba->link_state == LPFC_HBA_ERROR) && 957 !(phba->pport->load_flag & FC_UNLOADING)) 958 mod_timer(&phba->hb_tmofunc, 959 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 960 return; 961 } 962 963 /** 964 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 965 * @phba: pointer to lpfc hba data structure. 966 * 967 * This is the actual HBA-timer timeout handler to be invoked by the worker 968 * thread whenever the HBA timer fired and HBA-timeout event posted. This 969 * handler performs any periodic operations needed for the device. If such 970 * periodic event has already been attended to either in the interrupt handler 971 * or by processing slow-ring or fast-ring events within the HBA-timer 972 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 973 * the timer for the next timeout period. If lpfc heart-beat mailbox command 974 * is configured and there is no heart-beat mailbox command outstanding, a 975 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 976 * has been a heart-beat mailbox command outstanding, the HBA shall be put 977 * to offline. 978 **/ 979 void 980 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 981 { 982 struct lpfc_vport **vports; 983 LPFC_MBOXQ_t *pmboxq; 984 struct lpfc_dmabuf *buf_ptr; 985 int retval, i; 986 struct lpfc_sli *psli = &phba->sli; 987 LIST_HEAD(completions); 988 989 vports = lpfc_create_vport_work_array(phba); 990 if (vports != NULL) 991 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 992 lpfc_rcv_seq_check_edtov(vports[i]); 993 lpfc_destroy_vport_work_array(phba, vports); 994 995 if ((phba->link_state == LPFC_HBA_ERROR) || 996 (phba->pport->load_flag & FC_UNLOADING) || 997 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 998 return; 999 1000 spin_lock_irq(&phba->pport->work_port_lock); 1001 1002 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1003 jiffies)) { 1004 spin_unlock_irq(&phba->pport->work_port_lock); 1005 if (!phba->hb_outstanding) 1006 mod_timer(&phba->hb_tmofunc, 1007 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1008 else 1009 mod_timer(&phba->hb_tmofunc, 1010 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1011 return; 1012 } 1013 spin_unlock_irq(&phba->pport->work_port_lock); 1014 1015 if (phba->elsbuf_cnt && 1016 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1017 spin_lock_irq(&phba->hbalock); 1018 list_splice_init(&phba->elsbuf, &completions); 1019 phba->elsbuf_cnt = 0; 1020 phba->elsbuf_prev_cnt = 0; 1021 spin_unlock_irq(&phba->hbalock); 1022 1023 while (!list_empty(&completions)) { 1024 list_remove_head(&completions, buf_ptr, 1025 struct lpfc_dmabuf, list); 1026 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1027 kfree(buf_ptr); 1028 } 1029 } 1030 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1031 1032 /* If there is no heart beat outstanding, issue a heartbeat command */ 1033 if (phba->cfg_enable_hba_heartbeat) { 1034 if (!phba->hb_outstanding) { 1035 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 1036 if (!pmboxq) { 1037 mod_timer(&phba->hb_tmofunc, 1038 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1039 return; 1040 } 1041 1042 lpfc_heart_beat(phba, pmboxq); 1043 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1044 pmboxq->vport = phba->pport; 1045 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 1046 1047 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 1048 mempool_free(pmboxq, phba->mbox_mem_pool); 1049 mod_timer(&phba->hb_tmofunc, 1050 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1051 return; 1052 } 1053 mod_timer(&phba->hb_tmofunc, 1054 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1055 phba->hb_outstanding = 1; 1056 return; 1057 } else { 1058 /* 1059 * If heart beat timeout called with hb_outstanding set 1060 * we need to take the HBA offline. 1061 */ 1062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1063 "0459 Adapter heartbeat failure, " 1064 "taking this port offline.\n"); 1065 1066 spin_lock_irq(&phba->hbalock); 1067 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1068 spin_unlock_irq(&phba->hbalock); 1069 1070 lpfc_offline_prep(phba); 1071 lpfc_offline(phba); 1072 lpfc_unblock_mgmt_io(phba); 1073 phba->link_state = LPFC_HBA_ERROR; 1074 lpfc_hba_down_post(phba); 1075 } 1076 } 1077 } 1078 1079 /** 1080 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1081 * @phba: pointer to lpfc hba data structure. 1082 * 1083 * This routine is called to bring the HBA offline when HBA hardware error 1084 * other than Port Error 6 has been detected. 1085 **/ 1086 static void 1087 lpfc_offline_eratt(struct lpfc_hba *phba) 1088 { 1089 struct lpfc_sli *psli = &phba->sli; 1090 1091 spin_lock_irq(&phba->hbalock); 1092 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1093 spin_unlock_irq(&phba->hbalock); 1094 lpfc_offline_prep(phba); 1095 1096 lpfc_offline(phba); 1097 lpfc_reset_barrier(phba); 1098 spin_lock_irq(&phba->hbalock); 1099 lpfc_sli_brdreset(phba); 1100 spin_unlock_irq(&phba->hbalock); 1101 lpfc_hba_down_post(phba); 1102 lpfc_sli_brdready(phba, HS_MBRDY); 1103 lpfc_unblock_mgmt_io(phba); 1104 phba->link_state = LPFC_HBA_ERROR; 1105 return; 1106 } 1107 1108 /** 1109 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1110 * @phba: pointer to lpfc hba data structure. 1111 * 1112 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1113 * other than Port Error 6 has been detected. 1114 **/ 1115 static void 1116 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1117 { 1118 lpfc_offline_prep(phba); 1119 lpfc_offline(phba); 1120 lpfc_sli4_brdreset(phba); 1121 lpfc_hba_down_post(phba); 1122 lpfc_sli4_post_status_check(phba); 1123 lpfc_unblock_mgmt_io(phba); 1124 phba->link_state = LPFC_HBA_ERROR; 1125 } 1126 1127 /** 1128 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1129 * @phba: pointer to lpfc hba data structure. 1130 * 1131 * This routine is invoked to handle the deferred HBA hardware error 1132 * conditions. This type of error is indicated by HBA by setting ER1 1133 * and another ER bit in the host status register. The driver will 1134 * wait until the ER1 bit clears before handling the error condition. 1135 **/ 1136 static void 1137 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1138 { 1139 uint32_t old_host_status = phba->work_hs; 1140 struct lpfc_sli_ring *pring; 1141 struct lpfc_sli *psli = &phba->sli; 1142 1143 /* If the pci channel is offline, ignore possible errors, 1144 * since we cannot communicate with the pci card anyway. 1145 */ 1146 if (pci_channel_offline(phba->pcidev)) { 1147 spin_lock_irq(&phba->hbalock); 1148 phba->hba_flag &= ~DEFER_ERATT; 1149 spin_unlock_irq(&phba->hbalock); 1150 return; 1151 } 1152 1153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1154 "0479 Deferred Adapter Hardware Error " 1155 "Data: x%x x%x x%x\n", 1156 phba->work_hs, 1157 phba->work_status[0], phba->work_status[1]); 1158 1159 spin_lock_irq(&phba->hbalock); 1160 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1161 spin_unlock_irq(&phba->hbalock); 1162 1163 1164 /* 1165 * Firmware stops when it triggred erratt. That could cause the I/Os 1166 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1167 * SCSI layer retry it after re-establishing link. 1168 */ 1169 pring = &psli->ring[psli->fcp_ring]; 1170 lpfc_sli_abort_iocb_ring(phba, pring); 1171 1172 /* 1173 * There was a firmware error. Take the hba offline and then 1174 * attempt to restart it. 1175 */ 1176 lpfc_offline_prep(phba); 1177 lpfc_offline(phba); 1178 1179 /* Wait for the ER1 bit to clear.*/ 1180 while (phba->work_hs & HS_FFER1) { 1181 msleep(100); 1182 phba->work_hs = readl(phba->HSregaddr); 1183 /* If driver is unloading let the worker thread continue */ 1184 if (phba->pport->load_flag & FC_UNLOADING) { 1185 phba->work_hs = 0; 1186 break; 1187 } 1188 } 1189 1190 /* 1191 * This is to ptrotect against a race condition in which 1192 * first write to the host attention register clear the 1193 * host status register. 1194 */ 1195 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1196 phba->work_hs = old_host_status & ~HS_FFER1; 1197 1198 spin_lock_irq(&phba->hbalock); 1199 phba->hba_flag &= ~DEFER_ERATT; 1200 spin_unlock_irq(&phba->hbalock); 1201 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1202 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1203 } 1204 1205 static void 1206 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1207 { 1208 struct lpfc_board_event_header board_event; 1209 struct Scsi_Host *shost; 1210 1211 board_event.event_type = FC_REG_BOARD_EVENT; 1212 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1213 shost = lpfc_shost_from_vport(phba->pport); 1214 fc_host_post_vendor_event(shost, fc_get_event_number(), 1215 sizeof(board_event), 1216 (char *) &board_event, 1217 LPFC_NL_VENDOR_ID); 1218 } 1219 1220 /** 1221 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1222 * @phba: pointer to lpfc hba data structure. 1223 * 1224 * This routine is invoked to handle the following HBA hardware error 1225 * conditions: 1226 * 1 - HBA error attention interrupt 1227 * 2 - DMA ring index out of range 1228 * 3 - Mailbox command came back as unknown 1229 **/ 1230 static void 1231 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1232 { 1233 struct lpfc_vport *vport = phba->pport; 1234 struct lpfc_sli *psli = &phba->sli; 1235 struct lpfc_sli_ring *pring; 1236 uint32_t event_data; 1237 unsigned long temperature; 1238 struct temp_event temp_event_data; 1239 struct Scsi_Host *shost; 1240 1241 /* If the pci channel is offline, ignore possible errors, 1242 * since we cannot communicate with the pci card anyway. 1243 */ 1244 if (pci_channel_offline(phba->pcidev)) { 1245 spin_lock_irq(&phba->hbalock); 1246 phba->hba_flag &= ~DEFER_ERATT; 1247 spin_unlock_irq(&phba->hbalock); 1248 return; 1249 } 1250 1251 /* If resets are disabled then leave the HBA alone and return */ 1252 if (!phba->cfg_enable_hba_reset) 1253 return; 1254 1255 /* Send an internal error event to mgmt application */ 1256 lpfc_board_errevt_to_mgmt(phba); 1257 1258 if (phba->hba_flag & DEFER_ERATT) 1259 lpfc_handle_deferred_eratt(phba); 1260 1261 if (phba->work_hs & HS_FFER6) { 1262 /* Re-establishing Link */ 1263 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1264 "1301 Re-establishing Link " 1265 "Data: x%x x%x x%x\n", 1266 phba->work_hs, 1267 phba->work_status[0], phba->work_status[1]); 1268 1269 spin_lock_irq(&phba->hbalock); 1270 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1271 spin_unlock_irq(&phba->hbalock); 1272 1273 /* 1274 * Firmware stops when it triggled erratt with HS_FFER6. 1275 * That could cause the I/Os dropped by the firmware. 1276 * Error iocb (I/O) on txcmplq and let the SCSI layer 1277 * retry it after re-establishing link. 1278 */ 1279 pring = &psli->ring[psli->fcp_ring]; 1280 lpfc_sli_abort_iocb_ring(phba, pring); 1281 1282 /* 1283 * There was a firmware error. Take the hba offline and then 1284 * attempt to restart it. 1285 */ 1286 lpfc_offline_prep(phba); 1287 lpfc_offline(phba); 1288 lpfc_sli_brdrestart(phba); 1289 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1290 lpfc_unblock_mgmt_io(phba); 1291 return; 1292 } 1293 lpfc_unblock_mgmt_io(phba); 1294 } else if (phba->work_hs & HS_CRIT_TEMP) { 1295 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1296 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1297 temp_event_data.event_code = LPFC_CRIT_TEMP; 1298 temp_event_data.data = (uint32_t)temperature; 1299 1300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1301 "0406 Adapter maximum temperature exceeded " 1302 "(%ld), taking this port offline " 1303 "Data: x%x x%x x%x\n", 1304 temperature, phba->work_hs, 1305 phba->work_status[0], phba->work_status[1]); 1306 1307 shost = lpfc_shost_from_vport(phba->pport); 1308 fc_host_post_vendor_event(shost, fc_get_event_number(), 1309 sizeof(temp_event_data), 1310 (char *) &temp_event_data, 1311 SCSI_NL_VID_TYPE_PCI 1312 | PCI_VENDOR_ID_EMULEX); 1313 1314 spin_lock_irq(&phba->hbalock); 1315 phba->over_temp_state = HBA_OVER_TEMP; 1316 spin_unlock_irq(&phba->hbalock); 1317 lpfc_offline_eratt(phba); 1318 1319 } else { 1320 /* The if clause above forces this code path when the status 1321 * failure is a value other than FFER6. Do not call the offline 1322 * twice. This is the adapter hardware error path. 1323 */ 1324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1325 "0457 Adapter Hardware Error " 1326 "Data: x%x x%x x%x\n", 1327 phba->work_hs, 1328 phba->work_status[0], phba->work_status[1]); 1329 1330 event_data = FC_REG_DUMP_EVENT; 1331 shost = lpfc_shost_from_vport(vport); 1332 fc_host_post_vendor_event(shost, fc_get_event_number(), 1333 sizeof(event_data), (char *) &event_data, 1334 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1335 1336 lpfc_offline_eratt(phba); 1337 } 1338 return; 1339 } 1340 1341 /** 1342 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1343 * @phba: pointer to lpfc hba data structure. 1344 * 1345 * This routine is invoked to handle the SLI4 HBA hardware error attention 1346 * conditions. 1347 **/ 1348 static void 1349 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1350 { 1351 struct lpfc_vport *vport = phba->pport; 1352 uint32_t event_data; 1353 struct Scsi_Host *shost; 1354 1355 /* If the pci channel is offline, ignore possible errors, since 1356 * we cannot communicate with the pci card anyway. 1357 */ 1358 if (pci_channel_offline(phba->pcidev)) 1359 return; 1360 /* If resets are disabled then leave the HBA alone and return */ 1361 if (!phba->cfg_enable_hba_reset) 1362 return; 1363 1364 /* Send an internal error event to mgmt application */ 1365 lpfc_board_errevt_to_mgmt(phba); 1366 1367 /* For now, the actual action for SLI4 device handling is not 1368 * specified yet, just treated it as adaptor hardware failure 1369 */ 1370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1371 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1372 phba->work_status[0], phba->work_status[1]); 1373 1374 event_data = FC_REG_DUMP_EVENT; 1375 shost = lpfc_shost_from_vport(vport); 1376 fc_host_post_vendor_event(shost, fc_get_event_number(), 1377 sizeof(event_data), (char *) &event_data, 1378 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1379 1380 lpfc_sli4_offline_eratt(phba); 1381 } 1382 1383 /** 1384 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1385 * @phba: pointer to lpfc HBA data structure. 1386 * 1387 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1388 * routine from the API jump table function pointer from the lpfc_hba struct. 1389 * 1390 * Return codes 1391 * 0 - success. 1392 * Any other value - error. 1393 **/ 1394 void 1395 lpfc_handle_eratt(struct lpfc_hba *phba) 1396 { 1397 (*phba->lpfc_handle_eratt)(phba); 1398 } 1399 1400 /** 1401 * lpfc_handle_latt - The HBA link event handler 1402 * @phba: pointer to lpfc hba data structure. 1403 * 1404 * This routine is invoked from the worker thread to handle a HBA host 1405 * attention link event. 1406 **/ 1407 void 1408 lpfc_handle_latt(struct lpfc_hba *phba) 1409 { 1410 struct lpfc_vport *vport = phba->pport; 1411 struct lpfc_sli *psli = &phba->sli; 1412 LPFC_MBOXQ_t *pmb; 1413 volatile uint32_t control; 1414 struct lpfc_dmabuf *mp; 1415 int rc = 0; 1416 1417 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1418 if (!pmb) { 1419 rc = 1; 1420 goto lpfc_handle_latt_err_exit; 1421 } 1422 1423 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1424 if (!mp) { 1425 rc = 2; 1426 goto lpfc_handle_latt_free_pmb; 1427 } 1428 1429 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1430 if (!mp->virt) { 1431 rc = 3; 1432 goto lpfc_handle_latt_free_mp; 1433 } 1434 1435 /* Cleanup any outstanding ELS commands */ 1436 lpfc_els_flush_all_cmd(phba); 1437 1438 psli->slistat.link_event++; 1439 lpfc_read_la(phba, pmb, mp); 1440 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1441 pmb->vport = vport; 1442 /* Block ELS IOCBs until we have processed this mbox command */ 1443 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1444 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1445 if (rc == MBX_NOT_FINISHED) { 1446 rc = 4; 1447 goto lpfc_handle_latt_free_mbuf; 1448 } 1449 1450 /* Clear Link Attention in HA REG */ 1451 spin_lock_irq(&phba->hbalock); 1452 writel(HA_LATT, phba->HAregaddr); 1453 readl(phba->HAregaddr); /* flush */ 1454 spin_unlock_irq(&phba->hbalock); 1455 1456 return; 1457 1458 lpfc_handle_latt_free_mbuf: 1459 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1460 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1461 lpfc_handle_latt_free_mp: 1462 kfree(mp); 1463 lpfc_handle_latt_free_pmb: 1464 mempool_free(pmb, phba->mbox_mem_pool); 1465 lpfc_handle_latt_err_exit: 1466 /* Enable Link attention interrupts */ 1467 spin_lock_irq(&phba->hbalock); 1468 psli->sli_flag |= LPFC_PROCESS_LA; 1469 control = readl(phba->HCregaddr); 1470 control |= HC_LAINT_ENA; 1471 writel(control, phba->HCregaddr); 1472 readl(phba->HCregaddr); /* flush */ 1473 1474 /* Clear Link Attention in HA REG */ 1475 writel(HA_LATT, phba->HAregaddr); 1476 readl(phba->HAregaddr); /* flush */ 1477 spin_unlock_irq(&phba->hbalock); 1478 lpfc_linkdown(phba); 1479 phba->link_state = LPFC_HBA_ERROR; 1480 1481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1482 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1483 1484 return; 1485 } 1486 1487 /** 1488 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1489 * @phba: pointer to lpfc hba data structure. 1490 * @vpd: pointer to the vital product data. 1491 * @len: length of the vital product data in bytes. 1492 * 1493 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1494 * an array of characters. In this routine, the ModelName, ProgramType, and 1495 * ModelDesc, etc. fields of the phba data structure will be populated. 1496 * 1497 * Return codes 1498 * 0 - pointer to the VPD passed in is NULL 1499 * 1 - success 1500 **/ 1501 int 1502 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1503 { 1504 uint8_t lenlo, lenhi; 1505 int Length; 1506 int i, j; 1507 int finished = 0; 1508 int index = 0; 1509 1510 if (!vpd) 1511 return 0; 1512 1513 /* Vital Product */ 1514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1515 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1516 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1517 (uint32_t) vpd[3]); 1518 while (!finished && (index < (len - 4))) { 1519 switch (vpd[index]) { 1520 case 0x82: 1521 case 0x91: 1522 index += 1; 1523 lenlo = vpd[index]; 1524 index += 1; 1525 lenhi = vpd[index]; 1526 index += 1; 1527 i = ((((unsigned short)lenhi) << 8) + lenlo); 1528 index += i; 1529 break; 1530 case 0x90: 1531 index += 1; 1532 lenlo = vpd[index]; 1533 index += 1; 1534 lenhi = vpd[index]; 1535 index += 1; 1536 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1537 if (Length > len - index) 1538 Length = len - index; 1539 while (Length > 0) { 1540 /* Look for Serial Number */ 1541 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1542 index += 2; 1543 i = vpd[index]; 1544 index += 1; 1545 j = 0; 1546 Length -= (3+i); 1547 while(i--) { 1548 phba->SerialNumber[j++] = vpd[index++]; 1549 if (j == 31) 1550 break; 1551 } 1552 phba->SerialNumber[j] = 0; 1553 continue; 1554 } 1555 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1556 phba->vpd_flag |= VPD_MODEL_DESC; 1557 index += 2; 1558 i = vpd[index]; 1559 index += 1; 1560 j = 0; 1561 Length -= (3+i); 1562 while(i--) { 1563 phba->ModelDesc[j++] = vpd[index++]; 1564 if (j == 255) 1565 break; 1566 } 1567 phba->ModelDesc[j] = 0; 1568 continue; 1569 } 1570 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1571 phba->vpd_flag |= VPD_MODEL_NAME; 1572 index += 2; 1573 i = vpd[index]; 1574 index += 1; 1575 j = 0; 1576 Length -= (3+i); 1577 while(i--) { 1578 phba->ModelName[j++] = vpd[index++]; 1579 if (j == 79) 1580 break; 1581 } 1582 phba->ModelName[j] = 0; 1583 continue; 1584 } 1585 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1586 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1587 index += 2; 1588 i = vpd[index]; 1589 index += 1; 1590 j = 0; 1591 Length -= (3+i); 1592 while(i--) { 1593 phba->ProgramType[j++] = vpd[index++]; 1594 if (j == 255) 1595 break; 1596 } 1597 phba->ProgramType[j] = 0; 1598 continue; 1599 } 1600 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1601 phba->vpd_flag |= VPD_PORT; 1602 index += 2; 1603 i = vpd[index]; 1604 index += 1; 1605 j = 0; 1606 Length -= (3+i); 1607 while(i--) { 1608 phba->Port[j++] = vpd[index++]; 1609 if (j == 19) 1610 break; 1611 } 1612 phba->Port[j] = 0; 1613 continue; 1614 } 1615 else { 1616 index += 2; 1617 i = vpd[index]; 1618 index += 1; 1619 index += i; 1620 Length -= (3 + i); 1621 } 1622 } 1623 finished = 0; 1624 break; 1625 case 0x78: 1626 finished = 1; 1627 break; 1628 default: 1629 index ++; 1630 break; 1631 } 1632 } 1633 1634 return(1); 1635 } 1636 1637 /** 1638 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1639 * @phba: pointer to lpfc hba data structure. 1640 * @mdp: pointer to the data structure to hold the derived model name. 1641 * @descp: pointer to the data structure to hold the derived description. 1642 * 1643 * This routine retrieves HBA's description based on its registered PCI device 1644 * ID. The @descp passed into this function points to an array of 256 chars. It 1645 * shall be returned with the model name, maximum speed, and the host bus type. 1646 * The @mdp passed into this function points to an array of 80 chars. When the 1647 * function returns, the @mdp will be filled with the model name. 1648 **/ 1649 static void 1650 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1651 { 1652 lpfc_vpd_t *vp; 1653 uint16_t dev_id = phba->pcidev->device; 1654 int max_speed; 1655 int GE = 0; 1656 int oneConnect = 0; /* default is not a oneConnect */ 1657 struct { 1658 char *name; 1659 char *bus; 1660 char *function; 1661 } m = {"<Unknown>", "", ""}; 1662 1663 if (mdp && mdp[0] != '\0' 1664 && descp && descp[0] != '\0') 1665 return; 1666 1667 if (phba->lmt & LMT_10Gb) 1668 max_speed = 10; 1669 else if (phba->lmt & LMT_8Gb) 1670 max_speed = 8; 1671 else if (phba->lmt & LMT_4Gb) 1672 max_speed = 4; 1673 else if (phba->lmt & LMT_2Gb) 1674 max_speed = 2; 1675 else 1676 max_speed = 1; 1677 1678 vp = &phba->vpd; 1679 1680 switch (dev_id) { 1681 case PCI_DEVICE_ID_FIREFLY: 1682 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1683 break; 1684 case PCI_DEVICE_ID_SUPERFLY: 1685 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1686 m = (typeof(m)){"LP7000", "PCI", 1687 "Fibre Channel Adapter"}; 1688 else 1689 m = (typeof(m)){"LP7000E", "PCI", 1690 "Fibre Channel Adapter"}; 1691 break; 1692 case PCI_DEVICE_ID_DRAGONFLY: 1693 m = (typeof(m)){"LP8000", "PCI", 1694 "Fibre Channel Adapter"}; 1695 break; 1696 case PCI_DEVICE_ID_CENTAUR: 1697 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1698 m = (typeof(m)){"LP9002", "PCI", 1699 "Fibre Channel Adapter"}; 1700 else 1701 m = (typeof(m)){"LP9000", "PCI", 1702 "Fibre Channel Adapter"}; 1703 break; 1704 case PCI_DEVICE_ID_RFLY: 1705 m = (typeof(m)){"LP952", "PCI", 1706 "Fibre Channel Adapter"}; 1707 break; 1708 case PCI_DEVICE_ID_PEGASUS: 1709 m = (typeof(m)){"LP9802", "PCI-X", 1710 "Fibre Channel Adapter"}; 1711 break; 1712 case PCI_DEVICE_ID_THOR: 1713 m = (typeof(m)){"LP10000", "PCI-X", 1714 "Fibre Channel Adapter"}; 1715 break; 1716 case PCI_DEVICE_ID_VIPER: 1717 m = (typeof(m)){"LPX1000", "PCI-X", 1718 "Fibre Channel Adapter"}; 1719 break; 1720 case PCI_DEVICE_ID_PFLY: 1721 m = (typeof(m)){"LP982", "PCI-X", 1722 "Fibre Channel Adapter"}; 1723 break; 1724 case PCI_DEVICE_ID_TFLY: 1725 m = (typeof(m)){"LP1050", "PCI-X", 1726 "Fibre Channel Adapter"}; 1727 break; 1728 case PCI_DEVICE_ID_HELIOS: 1729 m = (typeof(m)){"LP11000", "PCI-X2", 1730 "Fibre Channel Adapter"}; 1731 break; 1732 case PCI_DEVICE_ID_HELIOS_SCSP: 1733 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1734 "Fibre Channel Adapter"}; 1735 break; 1736 case PCI_DEVICE_ID_HELIOS_DCSP: 1737 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1738 "Fibre Channel Adapter"}; 1739 break; 1740 case PCI_DEVICE_ID_NEPTUNE: 1741 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1742 break; 1743 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1744 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1745 break; 1746 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1747 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1748 break; 1749 case PCI_DEVICE_ID_BMID: 1750 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1751 break; 1752 case PCI_DEVICE_ID_BSMB: 1753 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1754 break; 1755 case PCI_DEVICE_ID_ZEPHYR: 1756 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1757 break; 1758 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1759 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1760 break; 1761 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1762 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1763 GE = 1; 1764 break; 1765 case PCI_DEVICE_ID_ZMID: 1766 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1767 break; 1768 case PCI_DEVICE_ID_ZSMB: 1769 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1770 break; 1771 case PCI_DEVICE_ID_LP101: 1772 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1773 break; 1774 case PCI_DEVICE_ID_LP10000S: 1775 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1776 break; 1777 case PCI_DEVICE_ID_LP11000S: 1778 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1779 break; 1780 case PCI_DEVICE_ID_LPE11000S: 1781 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1782 break; 1783 case PCI_DEVICE_ID_SAT: 1784 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1785 break; 1786 case PCI_DEVICE_ID_SAT_MID: 1787 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1788 break; 1789 case PCI_DEVICE_ID_SAT_SMB: 1790 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1791 break; 1792 case PCI_DEVICE_ID_SAT_DCSP: 1793 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1794 break; 1795 case PCI_DEVICE_ID_SAT_SCSP: 1796 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1797 break; 1798 case PCI_DEVICE_ID_SAT_S: 1799 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1800 break; 1801 case PCI_DEVICE_ID_HORNET: 1802 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1803 GE = 1; 1804 break; 1805 case PCI_DEVICE_ID_PROTEUS_VF: 1806 m = (typeof(m)){"LPev12000", "PCIe IOV", 1807 "Fibre Channel Adapter"}; 1808 break; 1809 case PCI_DEVICE_ID_PROTEUS_PF: 1810 m = (typeof(m)){"LPev12000", "PCIe IOV", 1811 "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_PROTEUS_S: 1814 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1815 "Fibre Channel Adapter"}; 1816 break; 1817 case PCI_DEVICE_ID_TIGERSHARK: 1818 oneConnect = 1; 1819 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1820 break; 1821 case PCI_DEVICE_ID_TOMCAT: 1822 oneConnect = 1; 1823 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1824 break; 1825 case PCI_DEVICE_ID_FALCON: 1826 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1827 "EmulexSecure Fibre"}; 1828 break; 1829 case PCI_DEVICE_ID_BALIUS: 1830 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1831 "Fibre Channel Adapter"}; 1832 break; 1833 default: 1834 m = (typeof(m)){"Unknown", "", ""}; 1835 break; 1836 } 1837 1838 if (mdp && mdp[0] == '\0') 1839 snprintf(mdp, 79,"%s", m.name); 1840 /* oneConnect hba requires special processing, they are all initiators 1841 * and we put the port number on the end 1842 */ 1843 if (descp && descp[0] == '\0') { 1844 if (oneConnect) 1845 snprintf(descp, 255, 1846 "Emulex OneConnect %s, %s Initiator, Port %s", 1847 m.name, m.function, 1848 phba->Port); 1849 else 1850 snprintf(descp, 255, 1851 "Emulex %s %d%s %s %s", 1852 m.name, max_speed, (GE) ? "GE" : "Gb", 1853 m.bus, m.function); 1854 } 1855 } 1856 1857 /** 1858 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1859 * @phba: pointer to lpfc hba data structure. 1860 * @pring: pointer to a IOCB ring. 1861 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1862 * 1863 * This routine posts a given number of IOCBs with the associated DMA buffer 1864 * descriptors specified by the cnt argument to the given IOCB ring. 1865 * 1866 * Return codes 1867 * The number of IOCBs NOT able to be posted to the IOCB ring. 1868 **/ 1869 int 1870 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1871 { 1872 IOCB_t *icmd; 1873 struct lpfc_iocbq *iocb; 1874 struct lpfc_dmabuf *mp1, *mp2; 1875 1876 cnt += pring->missbufcnt; 1877 1878 /* While there are buffers to post */ 1879 while (cnt > 0) { 1880 /* Allocate buffer for command iocb */ 1881 iocb = lpfc_sli_get_iocbq(phba); 1882 if (iocb == NULL) { 1883 pring->missbufcnt = cnt; 1884 return cnt; 1885 } 1886 icmd = &iocb->iocb; 1887 1888 /* 2 buffers can be posted per command */ 1889 /* Allocate buffer to post */ 1890 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1891 if (mp1) 1892 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1893 if (!mp1 || !mp1->virt) { 1894 kfree(mp1); 1895 lpfc_sli_release_iocbq(phba, iocb); 1896 pring->missbufcnt = cnt; 1897 return cnt; 1898 } 1899 1900 INIT_LIST_HEAD(&mp1->list); 1901 /* Allocate buffer to post */ 1902 if (cnt > 1) { 1903 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1904 if (mp2) 1905 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1906 &mp2->phys); 1907 if (!mp2 || !mp2->virt) { 1908 kfree(mp2); 1909 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1910 kfree(mp1); 1911 lpfc_sli_release_iocbq(phba, iocb); 1912 pring->missbufcnt = cnt; 1913 return cnt; 1914 } 1915 1916 INIT_LIST_HEAD(&mp2->list); 1917 } else { 1918 mp2 = NULL; 1919 } 1920 1921 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1922 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1923 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1924 icmd->ulpBdeCount = 1; 1925 cnt--; 1926 if (mp2) { 1927 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1928 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1929 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1930 cnt--; 1931 icmd->ulpBdeCount = 2; 1932 } 1933 1934 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1935 icmd->ulpLe = 1; 1936 1937 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1938 IOCB_ERROR) { 1939 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1940 kfree(mp1); 1941 cnt++; 1942 if (mp2) { 1943 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1944 kfree(mp2); 1945 cnt++; 1946 } 1947 lpfc_sli_release_iocbq(phba, iocb); 1948 pring->missbufcnt = cnt; 1949 return cnt; 1950 } 1951 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1952 if (mp2) 1953 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1954 } 1955 pring->missbufcnt = 0; 1956 return 0; 1957 } 1958 1959 /** 1960 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1961 * @phba: pointer to lpfc hba data structure. 1962 * 1963 * This routine posts initial receive IOCB buffers to the ELS ring. The 1964 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1965 * set to 64 IOCBs. 1966 * 1967 * Return codes 1968 * 0 - success (currently always success) 1969 **/ 1970 static int 1971 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1972 { 1973 struct lpfc_sli *psli = &phba->sli; 1974 1975 /* Ring 0, ELS / CT buffers */ 1976 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1977 /* Ring 2 - FCP no buffers needed */ 1978 1979 return 0; 1980 } 1981 1982 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1983 1984 /** 1985 * lpfc_sha_init - Set up initial array of hash table entries 1986 * @HashResultPointer: pointer to an array as hash table. 1987 * 1988 * This routine sets up the initial values to the array of hash table entries 1989 * for the LC HBAs. 1990 **/ 1991 static void 1992 lpfc_sha_init(uint32_t * HashResultPointer) 1993 { 1994 HashResultPointer[0] = 0x67452301; 1995 HashResultPointer[1] = 0xEFCDAB89; 1996 HashResultPointer[2] = 0x98BADCFE; 1997 HashResultPointer[3] = 0x10325476; 1998 HashResultPointer[4] = 0xC3D2E1F0; 1999 } 2000 2001 /** 2002 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2003 * @HashResultPointer: pointer to an initial/result hash table. 2004 * @HashWorkingPointer: pointer to an working hash table. 2005 * 2006 * This routine iterates an initial hash table pointed by @HashResultPointer 2007 * with the values from the working hash table pointeed by @HashWorkingPointer. 2008 * The results are putting back to the initial hash table, returned through 2009 * the @HashResultPointer as the result hash table. 2010 **/ 2011 static void 2012 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2013 { 2014 int t; 2015 uint32_t TEMP; 2016 uint32_t A, B, C, D, E; 2017 t = 16; 2018 do { 2019 HashWorkingPointer[t] = 2020 S(1, 2021 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2022 8] ^ 2023 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2024 } while (++t <= 79); 2025 t = 0; 2026 A = HashResultPointer[0]; 2027 B = HashResultPointer[1]; 2028 C = HashResultPointer[2]; 2029 D = HashResultPointer[3]; 2030 E = HashResultPointer[4]; 2031 2032 do { 2033 if (t < 20) { 2034 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2035 } else if (t < 40) { 2036 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2037 } else if (t < 60) { 2038 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2039 } else { 2040 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2041 } 2042 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2043 E = D; 2044 D = C; 2045 C = S(30, B); 2046 B = A; 2047 A = TEMP; 2048 } while (++t <= 79); 2049 2050 HashResultPointer[0] += A; 2051 HashResultPointer[1] += B; 2052 HashResultPointer[2] += C; 2053 HashResultPointer[3] += D; 2054 HashResultPointer[4] += E; 2055 2056 } 2057 2058 /** 2059 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2060 * @RandomChallenge: pointer to the entry of host challenge random number array. 2061 * @HashWorking: pointer to the entry of the working hash array. 2062 * 2063 * This routine calculates the working hash array referred by @HashWorking 2064 * from the challenge random numbers associated with the host, referred by 2065 * @RandomChallenge. The result is put into the entry of the working hash 2066 * array and returned by reference through @HashWorking. 2067 **/ 2068 static void 2069 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2070 { 2071 *HashWorking = (*RandomChallenge ^ *HashWorking); 2072 } 2073 2074 /** 2075 * lpfc_hba_init - Perform special handling for LC HBA initialization 2076 * @phba: pointer to lpfc hba data structure. 2077 * @hbainit: pointer to an array of unsigned 32-bit integers. 2078 * 2079 * This routine performs the special handling for LC HBA initialization. 2080 **/ 2081 void 2082 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2083 { 2084 int t; 2085 uint32_t *HashWorking; 2086 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2087 2088 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2089 if (!HashWorking) 2090 return; 2091 2092 HashWorking[0] = HashWorking[78] = *pwwnn++; 2093 HashWorking[1] = HashWorking[79] = *pwwnn; 2094 2095 for (t = 0; t < 7; t++) 2096 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2097 2098 lpfc_sha_init(hbainit); 2099 lpfc_sha_iterate(hbainit, HashWorking); 2100 kfree(HashWorking); 2101 } 2102 2103 /** 2104 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2105 * @vport: pointer to a virtual N_Port data structure. 2106 * 2107 * This routine performs the necessary cleanups before deleting the @vport. 2108 * It invokes the discovery state machine to perform necessary state 2109 * transitions and to release the ndlps associated with the @vport. Note, 2110 * the physical port is treated as @vport 0. 2111 **/ 2112 void 2113 lpfc_cleanup(struct lpfc_vport *vport) 2114 { 2115 struct lpfc_hba *phba = vport->phba; 2116 struct lpfc_nodelist *ndlp, *next_ndlp; 2117 int i = 0; 2118 2119 if (phba->link_state > LPFC_LINK_DOWN) 2120 lpfc_port_link_failure(vport); 2121 2122 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2123 if (!NLP_CHK_NODE_ACT(ndlp)) { 2124 ndlp = lpfc_enable_node(vport, ndlp, 2125 NLP_STE_UNUSED_NODE); 2126 if (!ndlp) 2127 continue; 2128 spin_lock_irq(&phba->ndlp_lock); 2129 NLP_SET_FREE_REQ(ndlp); 2130 spin_unlock_irq(&phba->ndlp_lock); 2131 /* Trigger the release of the ndlp memory */ 2132 lpfc_nlp_put(ndlp); 2133 continue; 2134 } 2135 spin_lock_irq(&phba->ndlp_lock); 2136 if (NLP_CHK_FREE_REQ(ndlp)) { 2137 /* The ndlp should not be in memory free mode already */ 2138 spin_unlock_irq(&phba->ndlp_lock); 2139 continue; 2140 } else 2141 /* Indicate request for freeing ndlp memory */ 2142 NLP_SET_FREE_REQ(ndlp); 2143 spin_unlock_irq(&phba->ndlp_lock); 2144 2145 if (vport->port_type != LPFC_PHYSICAL_PORT && 2146 ndlp->nlp_DID == Fabric_DID) { 2147 /* Just free up ndlp with Fabric_DID for vports */ 2148 lpfc_nlp_put(ndlp); 2149 continue; 2150 } 2151 2152 if (ndlp->nlp_type & NLP_FABRIC) 2153 lpfc_disc_state_machine(vport, ndlp, NULL, 2154 NLP_EVT_DEVICE_RECOVERY); 2155 2156 lpfc_disc_state_machine(vport, ndlp, NULL, 2157 NLP_EVT_DEVICE_RM); 2158 2159 } 2160 2161 /* At this point, ALL ndlp's should be gone 2162 * because of the previous NLP_EVT_DEVICE_RM. 2163 * Lets wait for this to happen, if needed. 2164 */ 2165 while (!list_empty(&vport->fc_nodes)) { 2166 if (i++ > 3000) { 2167 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2168 "0233 Nodelist not empty\n"); 2169 list_for_each_entry_safe(ndlp, next_ndlp, 2170 &vport->fc_nodes, nlp_listp) { 2171 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2172 LOG_NODE, 2173 "0282 did:x%x ndlp:x%p " 2174 "usgmap:x%x refcnt:%d\n", 2175 ndlp->nlp_DID, (void *)ndlp, 2176 ndlp->nlp_usg_map, 2177 atomic_read( 2178 &ndlp->kref.refcount)); 2179 } 2180 break; 2181 } 2182 2183 /* Wait for any activity on ndlps to settle */ 2184 msleep(10); 2185 } 2186 } 2187 2188 /** 2189 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2190 * @vport: pointer to a virtual N_Port data structure. 2191 * 2192 * This routine stops all the timers associated with a @vport. This function 2193 * is invoked before disabling or deleting a @vport. Note that the physical 2194 * port is treated as @vport 0. 2195 **/ 2196 void 2197 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2198 { 2199 del_timer_sync(&vport->els_tmofunc); 2200 del_timer_sync(&vport->fc_fdmitmo); 2201 lpfc_can_disctmo(vport); 2202 return; 2203 } 2204 2205 /** 2206 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2207 * @phba: pointer to lpfc hba data structure. 2208 * 2209 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2210 * caller of this routine should already hold the host lock. 2211 **/ 2212 void 2213 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2214 { 2215 /* Clear pending FCF rediscovery wait and failover in progress flags */ 2216 phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND | 2217 FCF_DEAD_DISC | 2218 FCF_ACVL_DISC); 2219 /* Now, try to stop the timer */ 2220 del_timer(&phba->fcf.redisc_wait); 2221 } 2222 2223 /** 2224 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2225 * @phba: pointer to lpfc hba data structure. 2226 * 2227 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2228 * checks whether the FCF rediscovery wait timer is pending with the host 2229 * lock held before proceeding with disabling the timer and clearing the 2230 * wait timer pendig flag. 2231 **/ 2232 void 2233 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2234 { 2235 spin_lock_irq(&phba->hbalock); 2236 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2237 /* FCF rediscovery timer already fired or stopped */ 2238 spin_unlock_irq(&phba->hbalock); 2239 return; 2240 } 2241 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2242 spin_unlock_irq(&phba->hbalock); 2243 } 2244 2245 /** 2246 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2247 * @phba: pointer to lpfc hba data structure. 2248 * 2249 * This routine stops all the timers associated with a HBA. This function is 2250 * invoked before either putting a HBA offline or unloading the driver. 2251 **/ 2252 void 2253 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2254 { 2255 lpfc_stop_vport_timers(phba->pport); 2256 del_timer_sync(&phba->sli.mbox_tmo); 2257 del_timer_sync(&phba->fabric_block_timer); 2258 del_timer_sync(&phba->eratt_poll); 2259 del_timer_sync(&phba->hb_tmofunc); 2260 phba->hb_outstanding = 0; 2261 2262 switch (phba->pci_dev_grp) { 2263 case LPFC_PCI_DEV_LP: 2264 /* Stop any LightPulse device specific driver timers */ 2265 del_timer_sync(&phba->fcp_poll_timer); 2266 break; 2267 case LPFC_PCI_DEV_OC: 2268 /* Stop any OneConnect device sepcific driver timers */ 2269 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2270 break; 2271 default: 2272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2273 "0297 Invalid device group (x%x)\n", 2274 phba->pci_dev_grp); 2275 break; 2276 } 2277 return; 2278 } 2279 2280 /** 2281 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2282 * @phba: pointer to lpfc hba data structure. 2283 * 2284 * This routine marks a HBA's management interface as blocked. Once the HBA's 2285 * management interface is marked as blocked, all the user space access to 2286 * the HBA, whether they are from sysfs interface or libdfc interface will 2287 * all be blocked. The HBA is set to block the management interface when the 2288 * driver prepares the HBA interface for online or offline. 2289 **/ 2290 static void 2291 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2292 { 2293 unsigned long iflag; 2294 uint8_t actcmd = MBX_HEARTBEAT; 2295 unsigned long timeout; 2296 2297 2298 spin_lock_irqsave(&phba->hbalock, iflag); 2299 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2300 if (phba->sli.mbox_active) 2301 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2302 spin_unlock_irqrestore(&phba->hbalock, iflag); 2303 /* Determine how long we might wait for the active mailbox 2304 * command to be gracefully completed by firmware. 2305 */ 2306 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2307 jiffies; 2308 /* Wait for the outstnading mailbox command to complete */ 2309 while (phba->sli.mbox_active) { 2310 /* Check active mailbox complete status every 2ms */ 2311 msleep(2); 2312 if (time_after(jiffies, timeout)) { 2313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2314 "2813 Mgmt IO is Blocked %x " 2315 "- mbox cmd %x still active\n", 2316 phba->sli.sli_flag, actcmd); 2317 break; 2318 } 2319 } 2320 } 2321 2322 /** 2323 * lpfc_online - Initialize and bring a HBA online 2324 * @phba: pointer to lpfc hba data structure. 2325 * 2326 * This routine initializes the HBA and brings a HBA online. During this 2327 * process, the management interface is blocked to prevent user space access 2328 * to the HBA interfering with the driver initialization. 2329 * 2330 * Return codes 2331 * 0 - successful 2332 * 1 - failed 2333 **/ 2334 int 2335 lpfc_online(struct lpfc_hba *phba) 2336 { 2337 struct lpfc_vport *vport; 2338 struct lpfc_vport **vports; 2339 int i; 2340 2341 if (!phba) 2342 return 0; 2343 vport = phba->pport; 2344 2345 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2346 return 0; 2347 2348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2349 "0458 Bring Adapter online\n"); 2350 2351 lpfc_block_mgmt_io(phba); 2352 2353 if (!lpfc_sli_queue_setup(phba)) { 2354 lpfc_unblock_mgmt_io(phba); 2355 return 1; 2356 } 2357 2358 if (phba->sli_rev == LPFC_SLI_REV4) { 2359 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2360 lpfc_unblock_mgmt_io(phba); 2361 return 1; 2362 } 2363 } else { 2364 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2365 lpfc_unblock_mgmt_io(phba); 2366 return 1; 2367 } 2368 } 2369 2370 vports = lpfc_create_vport_work_array(phba); 2371 if (vports != NULL) 2372 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2373 struct Scsi_Host *shost; 2374 shost = lpfc_shost_from_vport(vports[i]); 2375 spin_lock_irq(shost->host_lock); 2376 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2377 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2378 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2379 if (phba->sli_rev == LPFC_SLI_REV4) 2380 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2381 spin_unlock_irq(shost->host_lock); 2382 } 2383 lpfc_destroy_vport_work_array(phba, vports); 2384 2385 lpfc_unblock_mgmt_io(phba); 2386 return 0; 2387 } 2388 2389 /** 2390 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2391 * @phba: pointer to lpfc hba data structure. 2392 * 2393 * This routine marks a HBA's management interface as not blocked. Once the 2394 * HBA's management interface is marked as not blocked, all the user space 2395 * access to the HBA, whether they are from sysfs interface or libdfc 2396 * interface will be allowed. The HBA is set to block the management interface 2397 * when the driver prepares the HBA interface for online or offline and then 2398 * set to unblock the management interface afterwards. 2399 **/ 2400 void 2401 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2402 { 2403 unsigned long iflag; 2404 2405 spin_lock_irqsave(&phba->hbalock, iflag); 2406 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2407 spin_unlock_irqrestore(&phba->hbalock, iflag); 2408 } 2409 2410 /** 2411 * lpfc_offline_prep - Prepare a HBA to be brought offline 2412 * @phba: pointer to lpfc hba data structure. 2413 * 2414 * This routine is invoked to prepare a HBA to be brought offline. It performs 2415 * unregistration login to all the nodes on all vports and flushes the mailbox 2416 * queue to make it ready to be brought offline. 2417 **/ 2418 void 2419 lpfc_offline_prep(struct lpfc_hba * phba) 2420 { 2421 struct lpfc_vport *vport = phba->pport; 2422 struct lpfc_nodelist *ndlp, *next_ndlp; 2423 struct lpfc_vport **vports; 2424 struct Scsi_Host *shost; 2425 int i; 2426 2427 if (vport->fc_flag & FC_OFFLINE_MODE) 2428 return; 2429 2430 lpfc_block_mgmt_io(phba); 2431 2432 lpfc_linkdown(phba); 2433 2434 /* Issue an unreg_login to all nodes on all vports */ 2435 vports = lpfc_create_vport_work_array(phba); 2436 if (vports != NULL) { 2437 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2438 if (vports[i]->load_flag & FC_UNLOADING) 2439 continue; 2440 shost = lpfc_shost_from_vport(vports[i]); 2441 spin_lock_irq(shost->host_lock); 2442 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2443 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2444 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2445 spin_unlock_irq(shost->host_lock); 2446 2447 shost = lpfc_shost_from_vport(vports[i]); 2448 list_for_each_entry_safe(ndlp, next_ndlp, 2449 &vports[i]->fc_nodes, 2450 nlp_listp) { 2451 if (!NLP_CHK_NODE_ACT(ndlp)) 2452 continue; 2453 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2454 continue; 2455 if (ndlp->nlp_type & NLP_FABRIC) { 2456 lpfc_disc_state_machine(vports[i], ndlp, 2457 NULL, NLP_EVT_DEVICE_RECOVERY); 2458 lpfc_disc_state_machine(vports[i], ndlp, 2459 NULL, NLP_EVT_DEVICE_RM); 2460 } 2461 spin_lock_irq(shost->host_lock); 2462 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2463 spin_unlock_irq(shost->host_lock); 2464 lpfc_unreg_rpi(vports[i], ndlp); 2465 } 2466 } 2467 } 2468 lpfc_destroy_vport_work_array(phba, vports); 2469 2470 lpfc_sli_mbox_sys_shutdown(phba); 2471 } 2472 2473 /** 2474 * lpfc_offline - Bring a HBA offline 2475 * @phba: pointer to lpfc hba data structure. 2476 * 2477 * This routine actually brings a HBA offline. It stops all the timers 2478 * associated with the HBA, brings down the SLI layer, and eventually 2479 * marks the HBA as in offline state for the upper layer protocol. 2480 **/ 2481 void 2482 lpfc_offline(struct lpfc_hba *phba) 2483 { 2484 struct Scsi_Host *shost; 2485 struct lpfc_vport **vports; 2486 int i; 2487 2488 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2489 return; 2490 2491 /* stop port and all timers associated with this hba */ 2492 lpfc_stop_port(phba); 2493 vports = lpfc_create_vport_work_array(phba); 2494 if (vports != NULL) 2495 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2496 lpfc_stop_vport_timers(vports[i]); 2497 lpfc_destroy_vport_work_array(phba, vports); 2498 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2499 "0460 Bring Adapter offline\n"); 2500 /* Bring down the SLI Layer and cleanup. The HBA is offline 2501 now. */ 2502 lpfc_sli_hba_down(phba); 2503 spin_lock_irq(&phba->hbalock); 2504 phba->work_ha = 0; 2505 spin_unlock_irq(&phba->hbalock); 2506 vports = lpfc_create_vport_work_array(phba); 2507 if (vports != NULL) 2508 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2509 shost = lpfc_shost_from_vport(vports[i]); 2510 spin_lock_irq(shost->host_lock); 2511 vports[i]->work_port_events = 0; 2512 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2513 spin_unlock_irq(shost->host_lock); 2514 } 2515 lpfc_destroy_vport_work_array(phba, vports); 2516 } 2517 2518 /** 2519 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2520 * @phba: pointer to lpfc hba data structure. 2521 * 2522 * This routine is to free all the SCSI buffers and IOCBs from the driver 2523 * list back to kernel. It is called from lpfc_pci_remove_one to free 2524 * the internal resources before the device is removed from the system. 2525 * 2526 * Return codes 2527 * 0 - successful (for now, it always returns 0) 2528 **/ 2529 static int 2530 lpfc_scsi_free(struct lpfc_hba *phba) 2531 { 2532 struct lpfc_scsi_buf *sb, *sb_next; 2533 struct lpfc_iocbq *io, *io_next; 2534 2535 spin_lock_irq(&phba->hbalock); 2536 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2537 spin_lock(&phba->scsi_buf_list_lock); 2538 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2539 list_del(&sb->list); 2540 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2541 sb->dma_handle); 2542 kfree(sb); 2543 phba->total_scsi_bufs--; 2544 } 2545 spin_unlock(&phba->scsi_buf_list_lock); 2546 2547 /* Release all the lpfc_iocbq entries maintained by this host. */ 2548 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2549 list_del(&io->list); 2550 kfree(io); 2551 phba->total_iocbq_bufs--; 2552 } 2553 spin_unlock_irq(&phba->hbalock); 2554 return 0; 2555 } 2556 2557 /** 2558 * lpfc_create_port - Create an FC port 2559 * @phba: pointer to lpfc hba data structure. 2560 * @instance: a unique integer ID to this FC port. 2561 * @dev: pointer to the device data structure. 2562 * 2563 * This routine creates a FC port for the upper layer protocol. The FC port 2564 * can be created on top of either a physical port or a virtual port provided 2565 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2566 * and associates the FC port created before adding the shost into the SCSI 2567 * layer. 2568 * 2569 * Return codes 2570 * @vport - pointer to the virtual N_Port data structure. 2571 * NULL - port create failed. 2572 **/ 2573 struct lpfc_vport * 2574 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2575 { 2576 struct lpfc_vport *vport; 2577 struct Scsi_Host *shost; 2578 int error = 0; 2579 2580 if (dev != &phba->pcidev->dev) 2581 shost = scsi_host_alloc(&lpfc_vport_template, 2582 sizeof(struct lpfc_vport)); 2583 else 2584 shost = scsi_host_alloc(&lpfc_template, 2585 sizeof(struct lpfc_vport)); 2586 if (!shost) 2587 goto out; 2588 2589 vport = (struct lpfc_vport *) shost->hostdata; 2590 vport->phba = phba; 2591 vport->load_flag |= FC_LOADING; 2592 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2593 vport->fc_rscn_flush = 0; 2594 2595 lpfc_get_vport_cfgparam(vport); 2596 shost->unique_id = instance; 2597 shost->max_id = LPFC_MAX_TARGET; 2598 shost->max_lun = vport->cfg_max_luns; 2599 shost->this_id = -1; 2600 shost->max_cmd_len = 16; 2601 if (phba->sli_rev == LPFC_SLI_REV4) { 2602 shost->dma_boundary = 2603 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2604 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2605 } 2606 2607 /* 2608 * Set initial can_queue value since 0 is no longer supported and 2609 * scsi_add_host will fail. This will be adjusted later based on the 2610 * max xri value determined in hba setup. 2611 */ 2612 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2613 if (dev != &phba->pcidev->dev) { 2614 shost->transportt = lpfc_vport_transport_template; 2615 vport->port_type = LPFC_NPIV_PORT; 2616 } else { 2617 shost->transportt = lpfc_transport_template; 2618 vport->port_type = LPFC_PHYSICAL_PORT; 2619 } 2620 2621 /* Initialize all internally managed lists. */ 2622 INIT_LIST_HEAD(&vport->fc_nodes); 2623 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2624 spin_lock_init(&vport->work_port_lock); 2625 2626 init_timer(&vport->fc_disctmo); 2627 vport->fc_disctmo.function = lpfc_disc_timeout; 2628 vport->fc_disctmo.data = (unsigned long)vport; 2629 2630 init_timer(&vport->fc_fdmitmo); 2631 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2632 vport->fc_fdmitmo.data = (unsigned long)vport; 2633 2634 init_timer(&vport->els_tmofunc); 2635 vport->els_tmofunc.function = lpfc_els_timeout; 2636 vport->els_tmofunc.data = (unsigned long)vport; 2637 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2638 if (error) 2639 goto out_put_shost; 2640 2641 spin_lock_irq(&phba->hbalock); 2642 list_add_tail(&vport->listentry, &phba->port_list); 2643 spin_unlock_irq(&phba->hbalock); 2644 return vport; 2645 2646 out_put_shost: 2647 scsi_host_put(shost); 2648 out: 2649 return NULL; 2650 } 2651 2652 /** 2653 * destroy_port - destroy an FC port 2654 * @vport: pointer to an lpfc virtual N_Port data structure. 2655 * 2656 * This routine destroys a FC port from the upper layer protocol. All the 2657 * resources associated with the port are released. 2658 **/ 2659 void 2660 destroy_port(struct lpfc_vport *vport) 2661 { 2662 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2663 struct lpfc_hba *phba = vport->phba; 2664 2665 lpfc_debugfs_terminate(vport); 2666 fc_remove_host(shost); 2667 scsi_remove_host(shost); 2668 2669 spin_lock_irq(&phba->hbalock); 2670 list_del_init(&vport->listentry); 2671 spin_unlock_irq(&phba->hbalock); 2672 2673 lpfc_cleanup(vport); 2674 return; 2675 } 2676 2677 /** 2678 * lpfc_get_instance - Get a unique integer ID 2679 * 2680 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2681 * uses the kernel idr facility to perform the task. 2682 * 2683 * Return codes: 2684 * instance - a unique integer ID allocated as the new instance. 2685 * -1 - lpfc get instance failed. 2686 **/ 2687 int 2688 lpfc_get_instance(void) 2689 { 2690 int instance = 0; 2691 2692 /* Assign an unused number */ 2693 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2694 return -1; 2695 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2696 return -1; 2697 return instance; 2698 } 2699 2700 /** 2701 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2702 * @shost: pointer to SCSI host data structure. 2703 * @time: elapsed time of the scan in jiffies. 2704 * 2705 * This routine is called by the SCSI layer with a SCSI host to determine 2706 * whether the scan host is finished. 2707 * 2708 * Note: there is no scan_start function as adapter initialization will have 2709 * asynchronously kicked off the link initialization. 2710 * 2711 * Return codes 2712 * 0 - SCSI host scan is not over yet. 2713 * 1 - SCSI host scan is over. 2714 **/ 2715 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2716 { 2717 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2718 struct lpfc_hba *phba = vport->phba; 2719 int stat = 0; 2720 2721 spin_lock_irq(shost->host_lock); 2722 2723 if (vport->load_flag & FC_UNLOADING) { 2724 stat = 1; 2725 goto finished; 2726 } 2727 if (time >= 30 * HZ) { 2728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2729 "0461 Scanning longer than 30 " 2730 "seconds. Continuing initialization\n"); 2731 stat = 1; 2732 goto finished; 2733 } 2734 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2735 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2736 "0465 Link down longer than 15 " 2737 "seconds. Continuing initialization\n"); 2738 stat = 1; 2739 goto finished; 2740 } 2741 2742 if (vport->port_state != LPFC_VPORT_READY) 2743 goto finished; 2744 if (vport->num_disc_nodes || vport->fc_prli_sent) 2745 goto finished; 2746 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2747 goto finished; 2748 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2749 goto finished; 2750 2751 stat = 1; 2752 2753 finished: 2754 spin_unlock_irq(shost->host_lock); 2755 return stat; 2756 } 2757 2758 /** 2759 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2760 * @shost: pointer to SCSI host data structure. 2761 * 2762 * This routine initializes a given SCSI host attributes on a FC port. The 2763 * SCSI host can be either on top of a physical port or a virtual port. 2764 **/ 2765 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2766 { 2767 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2768 struct lpfc_hba *phba = vport->phba; 2769 /* 2770 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2771 */ 2772 2773 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2774 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2775 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2776 2777 memset(fc_host_supported_fc4s(shost), 0, 2778 sizeof(fc_host_supported_fc4s(shost))); 2779 fc_host_supported_fc4s(shost)[2] = 1; 2780 fc_host_supported_fc4s(shost)[7] = 1; 2781 2782 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2783 sizeof fc_host_symbolic_name(shost)); 2784 2785 fc_host_supported_speeds(shost) = 0; 2786 if (phba->lmt & LMT_10Gb) 2787 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2788 if (phba->lmt & LMT_8Gb) 2789 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2790 if (phba->lmt & LMT_4Gb) 2791 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2792 if (phba->lmt & LMT_2Gb) 2793 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2794 if (phba->lmt & LMT_1Gb) 2795 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2796 2797 fc_host_maxframe_size(shost) = 2798 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2799 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2800 2801 /* This value is also unchanging */ 2802 memset(fc_host_active_fc4s(shost), 0, 2803 sizeof(fc_host_active_fc4s(shost))); 2804 fc_host_active_fc4s(shost)[2] = 1; 2805 fc_host_active_fc4s(shost)[7] = 1; 2806 2807 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2808 spin_lock_irq(shost->host_lock); 2809 vport->load_flag &= ~FC_LOADING; 2810 spin_unlock_irq(shost->host_lock); 2811 } 2812 2813 /** 2814 * lpfc_stop_port_s3 - Stop SLI3 device port 2815 * @phba: pointer to lpfc hba data structure. 2816 * 2817 * This routine is invoked to stop an SLI3 device port, it stops the device 2818 * from generating interrupts and stops the device driver's timers for the 2819 * device. 2820 **/ 2821 static void 2822 lpfc_stop_port_s3(struct lpfc_hba *phba) 2823 { 2824 /* Clear all interrupt enable conditions */ 2825 writel(0, phba->HCregaddr); 2826 readl(phba->HCregaddr); /* flush */ 2827 /* Clear all pending interrupts */ 2828 writel(0xffffffff, phba->HAregaddr); 2829 readl(phba->HAregaddr); /* flush */ 2830 2831 /* Reset some HBA SLI setup states */ 2832 lpfc_stop_hba_timers(phba); 2833 phba->pport->work_port_events = 0; 2834 } 2835 2836 /** 2837 * lpfc_stop_port_s4 - Stop SLI4 device port 2838 * @phba: pointer to lpfc hba data structure. 2839 * 2840 * This routine is invoked to stop an SLI4 device port, it stops the device 2841 * from generating interrupts and stops the device driver's timers for the 2842 * device. 2843 **/ 2844 static void 2845 lpfc_stop_port_s4(struct lpfc_hba *phba) 2846 { 2847 /* Reset some HBA SLI4 setup states */ 2848 lpfc_stop_hba_timers(phba); 2849 phba->pport->work_port_events = 0; 2850 phba->sli4_hba.intr_enable = 0; 2851 } 2852 2853 /** 2854 * lpfc_stop_port - Wrapper function for stopping hba port 2855 * @phba: Pointer to HBA context object. 2856 * 2857 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2858 * the API jump table function pointer from the lpfc_hba struct. 2859 **/ 2860 void 2861 lpfc_stop_port(struct lpfc_hba *phba) 2862 { 2863 phba->lpfc_stop_port(phba); 2864 } 2865 2866 /** 2867 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2868 * @phba: pointer to lpfc hba data structure. 2869 * 2870 * This routine is invoked to remove the driver default fcf record from 2871 * the port. This routine currently acts on FCF Index 0. 2872 * 2873 **/ 2874 void 2875 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2876 { 2877 int rc = 0; 2878 LPFC_MBOXQ_t *mboxq; 2879 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2880 uint32_t mbox_tmo, req_len; 2881 uint32_t shdr_status, shdr_add_status; 2882 2883 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2884 if (!mboxq) { 2885 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2886 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2887 return; 2888 } 2889 2890 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2891 sizeof(struct lpfc_sli4_cfg_mhdr); 2892 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2893 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2894 req_len, LPFC_SLI4_MBX_EMBED); 2895 /* 2896 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2897 * supports multiple FCF indices. 2898 */ 2899 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2900 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2901 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2902 phba->fcf.current_rec.fcf_indx); 2903 2904 if (!phba->sli4_hba.intr_enable) 2905 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2906 else { 2907 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2908 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2909 } 2910 /* The IOCTL status is embedded in the mailbox subheader. */ 2911 shdr_status = bf_get(lpfc_mbox_hdr_status, 2912 &del_fcf_record->header.cfg_shdr.response); 2913 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2914 &del_fcf_record->header.cfg_shdr.response); 2915 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2916 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2917 "2516 DEL FCF of default FCF Index failed " 2918 "mbx status x%x, status x%x add_status x%x\n", 2919 rc, shdr_status, shdr_add_status); 2920 } 2921 if (rc != MBX_TIMEOUT) 2922 mempool_free(mboxq, phba->mbox_mem_pool); 2923 } 2924 2925 /** 2926 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2927 * @phba: Pointer to hba for which this call is being executed. 2928 * 2929 * This routine starts the timer waiting for the FCF rediscovery to complete. 2930 **/ 2931 void 2932 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2933 { 2934 unsigned long fcf_redisc_wait_tmo = 2935 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2936 /* Start fcf rediscovery wait period timer */ 2937 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2938 spin_lock_irq(&phba->hbalock); 2939 /* Allow action to new fcf asynchronous event */ 2940 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2941 /* Mark the FCF rediscovery pending state */ 2942 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2943 spin_unlock_irq(&phba->hbalock); 2944 } 2945 2946 /** 2947 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 2948 * @ptr: Map to lpfc_hba data structure pointer. 2949 * 2950 * This routine is invoked when waiting for FCF table rediscover has been 2951 * timed out. If new FCF record(s) has (have) been discovered during the 2952 * wait period, a new FCF event shall be added to the FCOE async event 2953 * list, and then worker thread shall be waked up for processing from the 2954 * worker thread context. 2955 **/ 2956 void 2957 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 2958 { 2959 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 2960 2961 /* Don't send FCF rediscovery event if timer cancelled */ 2962 spin_lock_irq(&phba->hbalock); 2963 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2964 spin_unlock_irq(&phba->hbalock); 2965 return; 2966 } 2967 /* Clear FCF rediscovery timer pending flag */ 2968 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2969 /* FCF rediscovery event to worker thread */ 2970 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 2971 spin_unlock_irq(&phba->hbalock); 2972 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 2973 "2776 FCF rediscover wait timer expired, post " 2974 "a worker thread event for FCF table scan\n"); 2975 /* wake up worker thread */ 2976 lpfc_worker_wake_up(phba); 2977 } 2978 2979 /** 2980 * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support 2981 * @phba: pointer to lpfc hba data structure. 2982 * 2983 * This function uses the QUERY_FW_CFG mailbox command to determine if the 2984 * firmware loaded supports FCoE. A return of zero indicates that the mailbox 2985 * was successful and the firmware supports FCoE. Any other return indicates 2986 * a error. It is assumed that this function will be called before interrupts 2987 * are enabled. 2988 **/ 2989 static int 2990 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba) 2991 { 2992 int rc = 0; 2993 LPFC_MBOXQ_t *mboxq; 2994 struct lpfc_mbx_query_fw_cfg *query_fw_cfg; 2995 uint32_t length; 2996 uint32_t shdr_status, shdr_add_status; 2997 2998 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2999 if (!mboxq) { 3000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3001 "2621 Failed to allocate mbox for " 3002 "query firmware config cmd\n"); 3003 return -ENOMEM; 3004 } 3005 query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg; 3006 length = (sizeof(struct lpfc_mbx_query_fw_cfg) - 3007 sizeof(struct lpfc_sli4_cfg_mhdr)); 3008 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 3009 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 3010 length, LPFC_SLI4_MBX_EMBED); 3011 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3012 /* The IOCTL status is embedded in the mailbox subheader. */ 3013 shdr_status = bf_get(lpfc_mbox_hdr_status, 3014 &query_fw_cfg->header.cfg_shdr.response); 3015 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 3016 &query_fw_cfg->header.cfg_shdr.response); 3017 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 3018 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3019 "2622 Query Firmware Config failed " 3020 "mbx status x%x, status x%x add_status x%x\n", 3021 rc, shdr_status, shdr_add_status); 3022 return -EINVAL; 3023 } 3024 if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) { 3025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3026 "2623 FCoE Function not supported by firmware. " 3027 "Function mode = %08x\n", 3028 query_fw_cfg->function_mode); 3029 return -EINVAL; 3030 } 3031 if (rc != MBX_TIMEOUT) 3032 mempool_free(mboxq, phba->mbox_mem_pool); 3033 return 0; 3034 } 3035 3036 /** 3037 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3038 * @phba: pointer to lpfc hba data structure. 3039 * @acqe_link: pointer to the async link completion queue entry. 3040 * 3041 * This routine is to parse the SLI4 link-attention link fault code and 3042 * translate it into the base driver's read link attention mailbox command 3043 * status. 3044 * 3045 * Return: Link-attention status in terms of base driver's coding. 3046 **/ 3047 static uint16_t 3048 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3049 struct lpfc_acqe_link *acqe_link) 3050 { 3051 uint16_t latt_fault; 3052 3053 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3054 case LPFC_ASYNC_LINK_FAULT_NONE: 3055 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3056 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3057 latt_fault = 0; 3058 break; 3059 default: 3060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3061 "0398 Invalid link fault code: x%x\n", 3062 bf_get(lpfc_acqe_link_fault, acqe_link)); 3063 latt_fault = MBXERR_ERROR; 3064 break; 3065 } 3066 return latt_fault; 3067 } 3068 3069 /** 3070 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3071 * @phba: pointer to lpfc hba data structure. 3072 * @acqe_link: pointer to the async link completion queue entry. 3073 * 3074 * This routine is to parse the SLI4 link attention type and translate it 3075 * into the base driver's link attention type coding. 3076 * 3077 * Return: Link attention type in terms of base driver's coding. 3078 **/ 3079 static uint8_t 3080 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3081 struct lpfc_acqe_link *acqe_link) 3082 { 3083 uint8_t att_type; 3084 3085 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3086 case LPFC_ASYNC_LINK_STATUS_DOWN: 3087 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3088 att_type = AT_LINK_DOWN; 3089 break; 3090 case LPFC_ASYNC_LINK_STATUS_UP: 3091 /* Ignore physical link up events - wait for logical link up */ 3092 att_type = AT_RESERVED; 3093 break; 3094 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3095 att_type = AT_LINK_UP; 3096 break; 3097 default: 3098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3099 "0399 Invalid link attention type: x%x\n", 3100 bf_get(lpfc_acqe_link_status, acqe_link)); 3101 att_type = AT_RESERVED; 3102 break; 3103 } 3104 return att_type; 3105 } 3106 3107 /** 3108 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3109 * @phba: pointer to lpfc hba data structure. 3110 * @acqe_link: pointer to the async link completion queue entry. 3111 * 3112 * This routine is to parse the SLI4 link-attention link speed and translate 3113 * it into the base driver's link-attention link speed coding. 3114 * 3115 * Return: Link-attention link speed in terms of base driver's coding. 3116 **/ 3117 static uint8_t 3118 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3119 struct lpfc_acqe_link *acqe_link) 3120 { 3121 uint8_t link_speed; 3122 3123 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3124 case LPFC_ASYNC_LINK_SPEED_ZERO: 3125 link_speed = LA_UNKNW_LINK; 3126 break; 3127 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3128 link_speed = LA_UNKNW_LINK; 3129 break; 3130 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3131 link_speed = LA_UNKNW_LINK; 3132 break; 3133 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3134 link_speed = LA_1GHZ_LINK; 3135 break; 3136 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3137 link_speed = LA_10GHZ_LINK; 3138 break; 3139 default: 3140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3141 "0483 Invalid link-attention link speed: x%x\n", 3142 bf_get(lpfc_acqe_link_speed, acqe_link)); 3143 link_speed = LA_UNKNW_LINK; 3144 break; 3145 } 3146 return link_speed; 3147 } 3148 3149 /** 3150 * lpfc_sli4_async_link_evt - Process the asynchronous link event 3151 * @phba: pointer to lpfc hba data structure. 3152 * @acqe_link: pointer to the async link completion queue entry. 3153 * 3154 * This routine is to handle the SLI4 asynchronous link event. 3155 **/ 3156 static void 3157 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3158 struct lpfc_acqe_link *acqe_link) 3159 { 3160 struct lpfc_dmabuf *mp; 3161 LPFC_MBOXQ_t *pmb; 3162 MAILBOX_t *mb; 3163 READ_LA_VAR *la; 3164 uint8_t att_type; 3165 3166 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3167 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 3168 return; 3169 phba->fcoe_eventtag = acqe_link->event_tag; 3170 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3171 if (!pmb) { 3172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3173 "0395 The mboxq allocation failed\n"); 3174 return; 3175 } 3176 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3177 if (!mp) { 3178 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3179 "0396 The lpfc_dmabuf allocation failed\n"); 3180 goto out_free_pmb; 3181 } 3182 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3183 if (!mp->virt) { 3184 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3185 "0397 The mbuf allocation failed\n"); 3186 goto out_free_dmabuf; 3187 } 3188 3189 /* Cleanup any outstanding ELS commands */ 3190 lpfc_els_flush_all_cmd(phba); 3191 3192 /* Block ELS IOCBs until we have done process link event */ 3193 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3194 3195 /* Update link event statistics */ 3196 phba->sli.slistat.link_event++; 3197 3198 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 3199 lpfc_read_la(phba, pmb, mp); 3200 pmb->vport = phba->pport; 3201 3202 /* Parse and translate status field */ 3203 mb = &pmb->u.mb; 3204 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3205 3206 /* Parse and translate link attention fields */ 3207 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 3208 la->eventTag = acqe_link->event_tag; 3209 la->attType = att_type; 3210 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 3211 3212 /* Fake the the following irrelvant fields */ 3213 la->topology = TOPOLOGY_PT_PT; 3214 la->granted_AL_PA = 0; 3215 la->il = 0; 3216 la->pb = 0; 3217 la->fa = 0; 3218 la->mm = 0; 3219 3220 /* Keep the link status for extra SLI4 state machine reference */ 3221 phba->sli4_hba.link_state.speed = 3222 bf_get(lpfc_acqe_link_speed, acqe_link); 3223 phba->sli4_hba.link_state.duplex = 3224 bf_get(lpfc_acqe_link_duplex, acqe_link); 3225 phba->sli4_hba.link_state.status = 3226 bf_get(lpfc_acqe_link_status, acqe_link); 3227 phba->sli4_hba.link_state.physical = 3228 bf_get(lpfc_acqe_link_physical, acqe_link); 3229 phba->sli4_hba.link_state.fault = 3230 bf_get(lpfc_acqe_link_fault, acqe_link); 3231 phba->sli4_hba.link_state.logical_speed = 3232 bf_get(lpfc_acqe_qos_link_speed, acqe_link); 3233 3234 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3235 lpfc_mbx_cmpl_read_la(phba, pmb); 3236 3237 return; 3238 3239 out_free_dmabuf: 3240 kfree(mp); 3241 out_free_pmb: 3242 mempool_free(pmb, phba->mbox_mem_pool); 3243 } 3244 3245 /** 3246 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3247 * @vport: pointer to vport data structure. 3248 * 3249 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3250 * response to a CVL event. 3251 * 3252 * Return the pointer to the ndlp with the vport if successful, otherwise 3253 * return NULL. 3254 **/ 3255 static struct lpfc_nodelist * 3256 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3257 { 3258 struct lpfc_nodelist *ndlp; 3259 struct Scsi_Host *shost; 3260 struct lpfc_hba *phba; 3261 3262 if (!vport) 3263 return NULL; 3264 phba = vport->phba; 3265 if (!phba) 3266 return NULL; 3267 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3268 if (!ndlp) { 3269 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3270 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3271 if (!ndlp) 3272 return 0; 3273 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3274 /* Set the node type */ 3275 ndlp->nlp_type |= NLP_FABRIC; 3276 /* Put ndlp onto node list */ 3277 lpfc_enqueue_node(vport, ndlp); 3278 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3279 /* re-setup ndlp without removing from node list */ 3280 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3281 if (!ndlp) 3282 return 0; 3283 } 3284 if (phba->pport->port_state <= LPFC_FLOGI) 3285 return NULL; 3286 /* If virtual link is not yet instantiated ignore CVL */ 3287 if (vport->port_state <= LPFC_FDISC) 3288 return NULL; 3289 shost = lpfc_shost_from_vport(vport); 3290 if (!shost) 3291 return NULL; 3292 lpfc_linkdown_port(vport); 3293 lpfc_cleanup_pending_mbox(vport); 3294 spin_lock_irq(shost->host_lock); 3295 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3296 spin_unlock_irq(shost->host_lock); 3297 3298 return ndlp; 3299 } 3300 3301 /** 3302 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3303 * @vport: pointer to lpfc hba data structure. 3304 * 3305 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3306 * response to a FCF dead event. 3307 **/ 3308 static void 3309 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3310 { 3311 struct lpfc_vport **vports; 3312 int i; 3313 3314 vports = lpfc_create_vport_work_array(phba); 3315 if (vports) 3316 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3317 lpfc_sli4_perform_vport_cvl(vports[i]); 3318 lpfc_destroy_vport_work_array(phba, vports); 3319 } 3320 3321 /** 3322 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 3323 * @phba: pointer to lpfc hba data structure. 3324 * @acqe_link: pointer to the async fcoe completion queue entry. 3325 * 3326 * This routine is to handle the SLI4 asynchronous fcoe event. 3327 **/ 3328 static void 3329 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 3330 struct lpfc_acqe_fcoe *acqe_fcoe) 3331 { 3332 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 3333 int rc; 3334 struct lpfc_vport *vport; 3335 struct lpfc_nodelist *ndlp; 3336 struct Scsi_Host *shost; 3337 int active_vlink_present; 3338 struct lpfc_vport **vports; 3339 int i; 3340 3341 phba->fc_eventTag = acqe_fcoe->event_tag; 3342 phba->fcoe_eventtag = acqe_fcoe->event_tag; 3343 switch (event_type) { 3344 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 3345 case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD: 3346 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF) 3347 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3348 LOG_DISCOVERY, 3349 "2546 New FCF found event: " 3350 "evt_tag:x%x, fcf_index:x%x\n", 3351 acqe_fcoe->event_tag, 3352 acqe_fcoe->index); 3353 else 3354 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3355 LOG_DISCOVERY, 3356 "2788 FCF parameter modified event: " 3357 "evt_tag:x%x, fcf_index:x%x\n", 3358 acqe_fcoe->event_tag, 3359 acqe_fcoe->index); 3360 spin_lock_irq(&phba->hbalock); 3361 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) || 3362 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 3363 /* 3364 * If the current FCF is in discovered state or 3365 * FCF discovery is in progress, do nothing. 3366 */ 3367 spin_unlock_irq(&phba->hbalock); 3368 break; 3369 } 3370 3371 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3372 /* 3373 * If fast FCF failover rescan event is pending, 3374 * do nothing. 3375 */ 3376 spin_unlock_irq(&phba->hbalock); 3377 break; 3378 } 3379 spin_unlock_irq(&phba->hbalock); 3380 3381 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 3382 !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) { 3383 /* 3384 * During period of FCF discovery, read the FCF 3385 * table record indexed by the event to update 3386 * FCF round robin failover eligible FCF bmask. 3387 */ 3388 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3389 LOG_DISCOVERY, 3390 "2779 Read new FCF record with " 3391 "fcf_index:x%x for updating FCF " 3392 "round robin failover bmask\n", 3393 acqe_fcoe->index); 3394 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index); 3395 } 3396 3397 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3398 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3399 "2770 Start FCF table scan due to new FCF " 3400 "event: evt_tag:x%x, fcf_index:x%x\n", 3401 acqe_fcoe->event_tag, acqe_fcoe->index); 3402 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3403 LPFC_FCOE_FCF_GET_FIRST); 3404 if (rc) 3405 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3406 "2547 Issue FCF scan read FCF mailbox " 3407 "command failed 0x%x\n", rc); 3408 break; 3409 3410 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 3411 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3412 "2548 FCF Table full count 0x%x tag 0x%x\n", 3413 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 3414 acqe_fcoe->event_tag); 3415 break; 3416 3417 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 3418 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3419 "2549 FCF disconnected from network index 0x%x" 3420 " tag 0x%x\n", acqe_fcoe->index, 3421 acqe_fcoe->event_tag); 3422 /* If the event is not for currently used fcf do nothing */ 3423 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index) 3424 break; 3425 /* We request port to rediscover the entire FCF table for 3426 * a fast recovery from case that the current FCF record 3427 * is no longer valid if we are not in the middle of FCF 3428 * failover process already. 3429 */ 3430 spin_lock_irq(&phba->hbalock); 3431 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3432 spin_unlock_irq(&phba->hbalock); 3433 /* Update FLOGI FCF failover eligible FCF bmask */ 3434 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index); 3435 break; 3436 } 3437 /* Mark the fast failover process in progress */ 3438 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3439 spin_unlock_irq(&phba->hbalock); 3440 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3441 "2771 Start FCF fast failover process due to " 3442 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3443 "\n", acqe_fcoe->event_tag, acqe_fcoe->index); 3444 rc = lpfc_sli4_redisc_fcf_table(phba); 3445 if (rc) { 3446 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3447 LOG_DISCOVERY, 3448 "2772 Issue FCF rediscover mabilbox " 3449 "command failed, fail through to FCF " 3450 "dead event\n"); 3451 spin_lock_irq(&phba->hbalock); 3452 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3453 spin_unlock_irq(&phba->hbalock); 3454 /* 3455 * Last resort will fail over by treating this 3456 * as a link down to FCF registration. 3457 */ 3458 lpfc_sli4_fcf_dead_failthrough(phba); 3459 } else 3460 /* Handling fast FCF failover to a DEAD FCF event 3461 * is considered equalivant to receiving CVL to all 3462 * vports. 3463 */ 3464 lpfc_sli4_perform_all_vport_cvl(phba); 3465 break; 3466 case LPFC_FCOE_EVENT_TYPE_CVL: 3467 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3468 "2718 Clear Virtual Link Received for VPI 0x%x" 3469 " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag); 3470 vport = lpfc_find_vport_by_vpid(phba, 3471 acqe_fcoe->index - phba->vpi_base); 3472 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3473 if (!ndlp) 3474 break; 3475 active_vlink_present = 0; 3476 3477 vports = lpfc_create_vport_work_array(phba); 3478 if (vports) { 3479 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3480 i++) { 3481 if ((!(vports[i]->fc_flag & 3482 FC_VPORT_CVL_RCVD)) && 3483 (vports[i]->port_state > LPFC_FDISC)) { 3484 active_vlink_present = 1; 3485 break; 3486 } 3487 } 3488 lpfc_destroy_vport_work_array(phba, vports); 3489 } 3490 3491 if (active_vlink_present) { 3492 /* 3493 * If there are other active VLinks present, 3494 * re-instantiate the Vlink using FDISC. 3495 */ 3496 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3497 shost = lpfc_shost_from_vport(vport); 3498 spin_lock_irq(shost->host_lock); 3499 ndlp->nlp_flag |= NLP_DELAY_TMO; 3500 spin_unlock_irq(shost->host_lock); 3501 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3502 vport->port_state = LPFC_FDISC; 3503 } else { 3504 /* 3505 * Otherwise, we request port to rediscover 3506 * the entire FCF table for a fast recovery 3507 * from possible case that the current FCF 3508 * is no longer valid if we are not already 3509 * in the FCF failover process. 3510 */ 3511 spin_lock_irq(&phba->hbalock); 3512 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3513 spin_unlock_irq(&phba->hbalock); 3514 break; 3515 } 3516 /* Mark the fast failover process in progress */ 3517 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3518 spin_unlock_irq(&phba->hbalock); 3519 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3520 LOG_DISCOVERY, 3521 "2773 Start FCF fast failover due " 3522 "to CVL event: evt_tag:x%x\n", 3523 acqe_fcoe->event_tag); 3524 rc = lpfc_sli4_redisc_fcf_table(phba); 3525 if (rc) { 3526 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3527 LOG_DISCOVERY, 3528 "2774 Issue FCF rediscover " 3529 "mabilbox command failed, " 3530 "through to CVL event\n"); 3531 spin_lock_irq(&phba->hbalock); 3532 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3533 spin_unlock_irq(&phba->hbalock); 3534 /* 3535 * Last resort will be re-try on the 3536 * the current registered FCF entry. 3537 */ 3538 lpfc_retry_pport_discovery(phba); 3539 } 3540 } 3541 break; 3542 default: 3543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3544 "0288 Unknown FCoE event type 0x%x event tag " 3545 "0x%x\n", event_type, acqe_fcoe->event_tag); 3546 break; 3547 } 3548 } 3549 3550 /** 3551 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3552 * @phba: pointer to lpfc hba data structure. 3553 * @acqe_link: pointer to the async dcbx completion queue entry. 3554 * 3555 * This routine is to handle the SLI4 asynchronous dcbx event. 3556 **/ 3557 static void 3558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3559 struct lpfc_acqe_dcbx *acqe_dcbx) 3560 { 3561 phba->fc_eventTag = acqe_dcbx->event_tag; 3562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3563 "0290 The SLI4 DCBX asynchronous event is not " 3564 "handled yet\n"); 3565 } 3566 3567 /** 3568 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3569 * @phba: pointer to lpfc hba data structure. 3570 * @acqe_link: pointer to the async grp5 completion queue entry. 3571 * 3572 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3573 * is an asynchronous notified of a logical link speed change. The Port 3574 * reports the logical link speed in units of 10Mbps. 3575 **/ 3576 static void 3577 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3578 struct lpfc_acqe_grp5 *acqe_grp5) 3579 { 3580 uint16_t prev_ll_spd; 3581 3582 phba->fc_eventTag = acqe_grp5->event_tag; 3583 phba->fcoe_eventtag = acqe_grp5->event_tag; 3584 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3585 phba->sli4_hba.link_state.logical_speed = 3586 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3587 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3588 "2789 GRP5 Async Event: Updating logical link speed " 3589 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3590 (phba->sli4_hba.link_state.logical_speed*10)); 3591 } 3592 3593 /** 3594 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3595 * @phba: pointer to lpfc hba data structure. 3596 * 3597 * This routine is invoked by the worker thread to process all the pending 3598 * SLI4 asynchronous events. 3599 **/ 3600 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3601 { 3602 struct lpfc_cq_event *cq_event; 3603 3604 /* First, declare the async event has been handled */ 3605 spin_lock_irq(&phba->hbalock); 3606 phba->hba_flag &= ~ASYNC_EVENT; 3607 spin_unlock_irq(&phba->hbalock); 3608 /* Now, handle all the async events */ 3609 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3610 /* Get the first event from the head of the event queue */ 3611 spin_lock_irq(&phba->hbalock); 3612 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3613 cq_event, struct lpfc_cq_event, list); 3614 spin_unlock_irq(&phba->hbalock); 3615 /* Process the asynchronous event */ 3616 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3617 case LPFC_TRAILER_CODE_LINK: 3618 lpfc_sli4_async_link_evt(phba, 3619 &cq_event->cqe.acqe_link); 3620 break; 3621 case LPFC_TRAILER_CODE_FCOE: 3622 lpfc_sli4_async_fcoe_evt(phba, 3623 &cq_event->cqe.acqe_fcoe); 3624 break; 3625 case LPFC_TRAILER_CODE_DCBX: 3626 lpfc_sli4_async_dcbx_evt(phba, 3627 &cq_event->cqe.acqe_dcbx); 3628 break; 3629 case LPFC_TRAILER_CODE_GRP5: 3630 lpfc_sli4_async_grp5_evt(phba, 3631 &cq_event->cqe.acqe_grp5); 3632 break; 3633 default: 3634 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3635 "1804 Invalid asynchrous event code: " 3636 "x%x\n", bf_get(lpfc_trailer_code, 3637 &cq_event->cqe.mcqe_cmpl)); 3638 break; 3639 } 3640 /* Free the completion event processed to the free pool */ 3641 lpfc_sli4_cq_event_release(phba, cq_event); 3642 } 3643 } 3644 3645 /** 3646 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3647 * @phba: pointer to lpfc hba data structure. 3648 * 3649 * This routine is invoked by the worker thread to process FCF table 3650 * rediscovery pending completion event. 3651 **/ 3652 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3653 { 3654 int rc; 3655 3656 spin_lock_irq(&phba->hbalock); 3657 /* Clear FCF rediscovery timeout event */ 3658 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3659 /* Clear driver fast failover FCF record flag */ 3660 phba->fcf.failover_rec.flag = 0; 3661 /* Set state for FCF fast failover */ 3662 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3663 spin_unlock_irq(&phba->hbalock); 3664 3665 /* Scan FCF table from the first entry to re-discover SAN */ 3666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3667 "2777 Start FCF table scan after FCF " 3668 "rediscovery quiescent period over\n"); 3669 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3670 if (rc) 3671 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3672 "2747 Issue FCF scan read FCF mailbox " 3673 "command failed 0x%x\n", rc); 3674 } 3675 3676 /** 3677 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3678 * @phba: pointer to lpfc hba data structure. 3679 * @dev_grp: The HBA PCI-Device group number. 3680 * 3681 * This routine is invoked to set up the per HBA PCI-Device group function 3682 * API jump table entries. 3683 * 3684 * Return: 0 if success, otherwise -ENODEV 3685 **/ 3686 int 3687 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3688 { 3689 int rc; 3690 3691 /* Set up lpfc PCI-device group */ 3692 phba->pci_dev_grp = dev_grp; 3693 3694 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3695 if (dev_grp == LPFC_PCI_DEV_OC) 3696 phba->sli_rev = LPFC_SLI_REV4; 3697 3698 /* Set up device INIT API function jump table */ 3699 rc = lpfc_init_api_table_setup(phba, dev_grp); 3700 if (rc) 3701 return -ENODEV; 3702 /* Set up SCSI API function jump table */ 3703 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3704 if (rc) 3705 return -ENODEV; 3706 /* Set up SLI API function jump table */ 3707 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3708 if (rc) 3709 return -ENODEV; 3710 /* Set up MBOX API function jump table */ 3711 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3712 if (rc) 3713 return -ENODEV; 3714 3715 return 0; 3716 } 3717 3718 /** 3719 * lpfc_log_intr_mode - Log the active interrupt mode 3720 * @phba: pointer to lpfc hba data structure. 3721 * @intr_mode: active interrupt mode adopted. 3722 * 3723 * This routine it invoked to log the currently used active interrupt mode 3724 * to the device. 3725 **/ 3726 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3727 { 3728 switch (intr_mode) { 3729 case 0: 3730 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3731 "0470 Enable INTx interrupt mode.\n"); 3732 break; 3733 case 1: 3734 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3735 "0481 Enabled MSI interrupt mode.\n"); 3736 break; 3737 case 2: 3738 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3739 "0480 Enabled MSI-X interrupt mode.\n"); 3740 break; 3741 default: 3742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3743 "0482 Illegal interrupt mode.\n"); 3744 break; 3745 } 3746 return; 3747 } 3748 3749 /** 3750 * lpfc_enable_pci_dev - Enable a generic PCI device. 3751 * @phba: pointer to lpfc hba data structure. 3752 * 3753 * This routine is invoked to enable the PCI device that is common to all 3754 * PCI devices. 3755 * 3756 * Return codes 3757 * 0 - successful 3758 * other values - error 3759 **/ 3760 static int 3761 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3762 { 3763 struct pci_dev *pdev; 3764 int bars; 3765 3766 /* Obtain PCI device reference */ 3767 if (!phba->pcidev) 3768 goto out_error; 3769 else 3770 pdev = phba->pcidev; 3771 /* Select PCI BARs */ 3772 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3773 /* Enable PCI device */ 3774 if (pci_enable_device_mem(pdev)) 3775 goto out_error; 3776 /* Request PCI resource for the device */ 3777 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3778 goto out_disable_device; 3779 /* Set up device as PCI master and save state for EEH */ 3780 pci_set_master(pdev); 3781 pci_try_set_mwi(pdev); 3782 pci_save_state(pdev); 3783 3784 return 0; 3785 3786 out_disable_device: 3787 pci_disable_device(pdev); 3788 out_error: 3789 return -ENODEV; 3790 } 3791 3792 /** 3793 * lpfc_disable_pci_dev - Disable a generic PCI device. 3794 * @phba: pointer to lpfc hba data structure. 3795 * 3796 * This routine is invoked to disable the PCI device that is common to all 3797 * PCI devices. 3798 **/ 3799 static void 3800 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3801 { 3802 struct pci_dev *pdev; 3803 int bars; 3804 3805 /* Obtain PCI device reference */ 3806 if (!phba->pcidev) 3807 return; 3808 else 3809 pdev = phba->pcidev; 3810 /* Select PCI BARs */ 3811 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3812 /* Release PCI resource and disable PCI device */ 3813 pci_release_selected_regions(pdev, bars); 3814 pci_disable_device(pdev); 3815 /* Null out PCI private reference to driver */ 3816 pci_set_drvdata(pdev, NULL); 3817 3818 return; 3819 } 3820 3821 /** 3822 * lpfc_reset_hba - Reset a hba 3823 * @phba: pointer to lpfc hba data structure. 3824 * 3825 * This routine is invoked to reset a hba device. It brings the HBA 3826 * offline, performs a board restart, and then brings the board back 3827 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3828 * on outstanding mailbox commands. 3829 **/ 3830 void 3831 lpfc_reset_hba(struct lpfc_hba *phba) 3832 { 3833 /* If resets are disabled then set error state and return. */ 3834 if (!phba->cfg_enable_hba_reset) { 3835 phba->link_state = LPFC_HBA_ERROR; 3836 return; 3837 } 3838 lpfc_offline_prep(phba); 3839 lpfc_offline(phba); 3840 lpfc_sli_brdrestart(phba); 3841 lpfc_online(phba); 3842 lpfc_unblock_mgmt_io(phba); 3843 } 3844 3845 /** 3846 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3847 * @phba: pointer to lpfc hba data structure. 3848 * 3849 * This routine is invoked to set up the driver internal resources specific to 3850 * support the SLI-3 HBA device it attached to. 3851 * 3852 * Return codes 3853 * 0 - successful 3854 * other values - error 3855 **/ 3856 static int 3857 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3858 { 3859 struct lpfc_sli *psli; 3860 3861 /* 3862 * Initialize timers used by driver 3863 */ 3864 3865 /* Heartbeat timer */ 3866 init_timer(&phba->hb_tmofunc); 3867 phba->hb_tmofunc.function = lpfc_hb_timeout; 3868 phba->hb_tmofunc.data = (unsigned long)phba; 3869 3870 psli = &phba->sli; 3871 /* MBOX heartbeat timer */ 3872 init_timer(&psli->mbox_tmo); 3873 psli->mbox_tmo.function = lpfc_mbox_timeout; 3874 psli->mbox_tmo.data = (unsigned long) phba; 3875 /* FCP polling mode timer */ 3876 init_timer(&phba->fcp_poll_timer); 3877 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3878 phba->fcp_poll_timer.data = (unsigned long) phba; 3879 /* Fabric block timer */ 3880 init_timer(&phba->fabric_block_timer); 3881 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3882 phba->fabric_block_timer.data = (unsigned long) phba; 3883 /* EA polling mode timer */ 3884 init_timer(&phba->eratt_poll); 3885 phba->eratt_poll.function = lpfc_poll_eratt; 3886 phba->eratt_poll.data = (unsigned long) phba; 3887 3888 /* Host attention work mask setup */ 3889 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3890 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3891 3892 /* Get all the module params for configuring this host */ 3893 lpfc_get_cfgparam(phba); 3894 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 3895 phba->menlo_flag |= HBA_MENLO_SUPPORT; 3896 /* check for menlo minimum sg count */ 3897 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 3898 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 3899 } 3900 3901 /* 3902 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3903 * used to create the sg_dma_buf_pool must be dynamically calculated. 3904 * 2 segments are added since the IOCB needs a command and response bde. 3905 */ 3906 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3907 sizeof(struct fcp_rsp) + 3908 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3909 3910 if (phba->cfg_enable_bg) { 3911 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3912 phba->cfg_sg_dma_buf_size += 3913 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3914 } 3915 3916 /* Also reinitialize the host templates with new values. */ 3917 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3918 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3919 3920 phba->max_vpi = LPFC_MAX_VPI; 3921 /* This will be set to correct value after config_port mbox */ 3922 phba->max_vports = 0; 3923 3924 /* 3925 * Initialize the SLI Layer to run with lpfc HBAs. 3926 */ 3927 lpfc_sli_setup(phba); 3928 lpfc_sli_queue_setup(phba); 3929 3930 /* Allocate device driver memory */ 3931 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3932 return -ENOMEM; 3933 3934 return 0; 3935 } 3936 3937 /** 3938 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3939 * @phba: pointer to lpfc hba data structure. 3940 * 3941 * This routine is invoked to unset the driver internal resources set up 3942 * specific for supporting the SLI-3 HBA device it attached to. 3943 **/ 3944 static void 3945 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3946 { 3947 /* Free device driver memory allocated */ 3948 lpfc_mem_free_all(phba); 3949 3950 return; 3951 } 3952 3953 /** 3954 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3955 * @phba: pointer to lpfc hba data structure. 3956 * 3957 * This routine is invoked to set up the driver internal resources specific to 3958 * support the SLI-4 HBA device it attached to. 3959 * 3960 * Return codes 3961 * 0 - successful 3962 * other values - error 3963 **/ 3964 static int 3965 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3966 { 3967 struct lpfc_sli *psli; 3968 LPFC_MBOXQ_t *mboxq; 3969 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 3970 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 3971 struct lpfc_mqe *mqe; 3972 int longs; 3973 3974 /* Before proceed, wait for POST done and device ready */ 3975 rc = lpfc_sli4_post_status_check(phba); 3976 if (rc) 3977 return -ENODEV; 3978 3979 /* 3980 * Initialize timers used by driver 3981 */ 3982 3983 /* Heartbeat timer */ 3984 init_timer(&phba->hb_tmofunc); 3985 phba->hb_tmofunc.function = lpfc_hb_timeout; 3986 phba->hb_tmofunc.data = (unsigned long)phba; 3987 3988 psli = &phba->sli; 3989 /* MBOX heartbeat timer */ 3990 init_timer(&psli->mbox_tmo); 3991 psli->mbox_tmo.function = lpfc_mbox_timeout; 3992 psli->mbox_tmo.data = (unsigned long) phba; 3993 /* Fabric block timer */ 3994 init_timer(&phba->fabric_block_timer); 3995 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3996 phba->fabric_block_timer.data = (unsigned long) phba; 3997 /* EA polling mode timer */ 3998 init_timer(&phba->eratt_poll); 3999 phba->eratt_poll.function = lpfc_poll_eratt; 4000 phba->eratt_poll.data = (unsigned long) phba; 4001 /* FCF rediscover timer */ 4002 init_timer(&phba->fcf.redisc_wait); 4003 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4004 phba->fcf.redisc_wait.data = (unsigned long)phba; 4005 4006 /* 4007 * We need to do a READ_CONFIG mailbox command here before 4008 * calling lpfc_get_cfgparam. For VFs this will report the 4009 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4010 * All of the resources allocated 4011 * for this Port are tied to these values. 4012 */ 4013 /* Get all the module params for configuring this host */ 4014 lpfc_get_cfgparam(phba); 4015 phba->max_vpi = LPFC_MAX_VPI; 4016 /* This will be set to correct value after the read_config mbox */ 4017 phba->max_vports = 0; 4018 4019 /* Program the default value of vlan_id and fc_map */ 4020 phba->valid_vlan = 0; 4021 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4022 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4023 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4024 4025 /* 4026 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4027 * used to create the sg_dma_buf_pool must be dynamically calculated. 4028 * 2 segments are added since the IOCB needs a command and response bde. 4029 * To insure that the scsi sgl does not cross a 4k page boundary only 4030 * sgl sizes of must be a power of 2. 4031 */ 4032 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4033 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4034 /* Feature Level 1 hardware is limited to 2 pages */ 4035 if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) == 4036 LPFC_SLI_INTF_FEATURELEVEL1_1)) 4037 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4038 else 4039 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4040 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4041 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4042 dma_buf_size = dma_buf_size << 1) 4043 ; 4044 if (dma_buf_size == max_buf_size) 4045 phba->cfg_sg_seg_cnt = (dma_buf_size - 4046 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4047 (2 * sizeof(struct sli4_sge))) / 4048 sizeof(struct sli4_sge); 4049 phba->cfg_sg_dma_buf_size = dma_buf_size; 4050 4051 /* Initialize buffer queue management fields */ 4052 hbq_count = lpfc_sli_hbq_count(); 4053 for (i = 0; i < hbq_count; ++i) 4054 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4055 INIT_LIST_HEAD(&phba->rb_pend_list); 4056 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4057 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4058 4059 /* 4060 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4061 */ 4062 /* Initialize the Abort scsi buffer list used by driver */ 4063 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4064 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4065 /* This abort list used by worker thread */ 4066 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4067 4068 /* 4069 * Initialize dirver internal slow-path work queues 4070 */ 4071 4072 /* Driver internel slow-path CQ Event pool */ 4073 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4074 /* Response IOCB work queue list */ 4075 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4076 /* Asynchronous event CQ Event work queue list */ 4077 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4078 /* Fast-path XRI aborted CQ Event work queue list */ 4079 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4080 /* Slow-path XRI aborted CQ Event work queue list */ 4081 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4082 /* Receive queue CQ Event work queue list */ 4083 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4084 4085 /* Initialize the driver internal SLI layer lists. */ 4086 lpfc_sli_setup(phba); 4087 lpfc_sli_queue_setup(phba); 4088 4089 /* Allocate device driver memory */ 4090 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4091 if (rc) 4092 return -ENOMEM; 4093 4094 /* Create the bootstrap mailbox command */ 4095 rc = lpfc_create_bootstrap_mbox(phba); 4096 if (unlikely(rc)) 4097 goto out_free_mem; 4098 4099 /* Set up the host's endian order with the device. */ 4100 rc = lpfc_setup_endian_order(phba); 4101 if (unlikely(rc)) 4102 goto out_free_bsmbx; 4103 4104 rc = lpfc_sli4_fw_cfg_check(phba); 4105 if (unlikely(rc)) 4106 goto out_free_bsmbx; 4107 4108 /* Set up the hba's configuration parameters. */ 4109 rc = lpfc_sli4_read_config(phba); 4110 if (unlikely(rc)) 4111 goto out_free_bsmbx; 4112 4113 /* Perform a function reset */ 4114 rc = lpfc_pci_function_reset(phba); 4115 if (unlikely(rc)) 4116 goto out_free_bsmbx; 4117 4118 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4119 GFP_KERNEL); 4120 if (!mboxq) { 4121 rc = -ENOMEM; 4122 goto out_free_bsmbx; 4123 } 4124 4125 /* Get the Supported Pages. It is always available. */ 4126 lpfc_supported_pages(mboxq); 4127 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4128 if (unlikely(rc)) { 4129 rc = -EIO; 4130 mempool_free(mboxq, phba->mbox_mem_pool); 4131 goto out_free_bsmbx; 4132 } 4133 4134 mqe = &mboxq->u.mqe; 4135 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4136 LPFC_MAX_SUPPORTED_PAGES); 4137 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4138 switch (pn_page[i]) { 4139 case LPFC_SLI4_PARAMETERS: 4140 phba->sli4_hba.pc_sli4_params.supported = 1; 4141 break; 4142 default: 4143 break; 4144 } 4145 } 4146 4147 /* Read the port's SLI4 Parameters capabilities if supported. */ 4148 if (phba->sli4_hba.pc_sli4_params.supported) 4149 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4150 mempool_free(mboxq, phba->mbox_mem_pool); 4151 if (rc) { 4152 rc = -EIO; 4153 goto out_free_bsmbx; 4154 } 4155 /* Create all the SLI4 queues */ 4156 rc = lpfc_sli4_queue_create(phba); 4157 if (rc) 4158 goto out_free_bsmbx; 4159 4160 /* Create driver internal CQE event pool */ 4161 rc = lpfc_sli4_cq_event_pool_create(phba); 4162 if (rc) 4163 goto out_destroy_queue; 4164 4165 /* Initialize and populate the iocb list per host */ 4166 rc = lpfc_init_sgl_list(phba); 4167 if (rc) { 4168 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4169 "1400 Failed to initialize sgl list.\n"); 4170 goto out_destroy_cq_event_pool; 4171 } 4172 rc = lpfc_init_active_sgl_array(phba); 4173 if (rc) { 4174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4175 "1430 Failed to initialize sgl list.\n"); 4176 goto out_free_sgl_list; 4177 } 4178 4179 rc = lpfc_sli4_init_rpi_hdrs(phba); 4180 if (rc) { 4181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4182 "1432 Failed to initialize rpi headers.\n"); 4183 goto out_free_active_sgl; 4184 } 4185 4186 /* Allocate eligible FCF bmask memory for FCF round robin failover */ 4187 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4188 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4189 GFP_KERNEL); 4190 if (!phba->fcf.fcf_rr_bmask) { 4191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4192 "2759 Failed allocate memory for FCF round " 4193 "robin failover bmask\n"); 4194 goto out_remove_rpi_hdrs; 4195 } 4196 4197 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4198 phba->cfg_fcp_eq_count), GFP_KERNEL); 4199 if (!phba->sli4_hba.fcp_eq_hdl) { 4200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4201 "2572 Failed allocate memory for fast-path " 4202 "per-EQ handle array\n"); 4203 goto out_free_fcf_rr_bmask; 4204 } 4205 4206 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4207 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4208 if (!phba->sli4_hba.msix_entries) { 4209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4210 "2573 Failed allocate memory for msi-x " 4211 "interrupt vector entries\n"); 4212 goto out_free_fcp_eq_hdl; 4213 } 4214 4215 return rc; 4216 4217 out_free_fcp_eq_hdl: 4218 kfree(phba->sli4_hba.fcp_eq_hdl); 4219 out_free_fcf_rr_bmask: 4220 kfree(phba->fcf.fcf_rr_bmask); 4221 out_remove_rpi_hdrs: 4222 lpfc_sli4_remove_rpi_hdrs(phba); 4223 out_free_active_sgl: 4224 lpfc_free_active_sgl(phba); 4225 out_free_sgl_list: 4226 lpfc_free_sgl_list(phba); 4227 out_destroy_cq_event_pool: 4228 lpfc_sli4_cq_event_pool_destroy(phba); 4229 out_destroy_queue: 4230 lpfc_sli4_queue_destroy(phba); 4231 out_free_bsmbx: 4232 lpfc_destroy_bootstrap_mbox(phba); 4233 out_free_mem: 4234 lpfc_mem_free(phba); 4235 return rc; 4236 } 4237 4238 /** 4239 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4240 * @phba: pointer to lpfc hba data structure. 4241 * 4242 * This routine is invoked to unset the driver internal resources set up 4243 * specific for supporting the SLI-4 HBA device it attached to. 4244 **/ 4245 static void 4246 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4247 { 4248 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4249 4250 /* unregister default FCFI from the HBA */ 4251 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 4252 4253 /* Free the default FCR table */ 4254 lpfc_sli_remove_dflt_fcf(phba); 4255 4256 /* Free memory allocated for msi-x interrupt vector entries */ 4257 kfree(phba->sli4_hba.msix_entries); 4258 4259 /* Free memory allocated for fast-path work queue handles */ 4260 kfree(phba->sli4_hba.fcp_eq_hdl); 4261 4262 /* Free the allocated rpi headers. */ 4263 lpfc_sli4_remove_rpi_hdrs(phba); 4264 lpfc_sli4_remove_rpis(phba); 4265 4266 /* Free eligible FCF index bmask */ 4267 kfree(phba->fcf.fcf_rr_bmask); 4268 4269 /* Free the ELS sgl list */ 4270 lpfc_free_active_sgl(phba); 4271 lpfc_free_sgl_list(phba); 4272 4273 /* Free the SCSI sgl management array */ 4274 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4275 4276 /* Free the SLI4 queues */ 4277 lpfc_sli4_queue_destroy(phba); 4278 4279 /* Free the completion queue EQ event pool */ 4280 lpfc_sli4_cq_event_release_all(phba); 4281 lpfc_sli4_cq_event_pool_destroy(phba); 4282 4283 /* Reset SLI4 HBA FCoE function */ 4284 lpfc_pci_function_reset(phba); 4285 4286 /* Free the bsmbx region. */ 4287 lpfc_destroy_bootstrap_mbox(phba); 4288 4289 /* Free the SLI Layer memory with SLI4 HBAs */ 4290 lpfc_mem_free_all(phba); 4291 4292 /* Free the current connect table */ 4293 list_for_each_entry_safe(conn_entry, next_conn_entry, 4294 &phba->fcf_conn_rec_list, list) { 4295 list_del_init(&conn_entry->list); 4296 kfree(conn_entry); 4297 } 4298 4299 return; 4300 } 4301 4302 /** 4303 * lpfc_init_api_table_setup - Set up init api fucntion jump table 4304 * @phba: The hba struct for which this call is being executed. 4305 * @dev_grp: The HBA PCI-Device group number. 4306 * 4307 * This routine sets up the device INIT interface API function jump table 4308 * in @phba struct. 4309 * 4310 * Returns: 0 - success, -ENODEV - failure. 4311 **/ 4312 int 4313 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4314 { 4315 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4316 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4317 switch (dev_grp) { 4318 case LPFC_PCI_DEV_LP: 4319 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4320 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4321 phba->lpfc_stop_port = lpfc_stop_port_s3; 4322 break; 4323 case LPFC_PCI_DEV_OC: 4324 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4325 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4326 phba->lpfc_stop_port = lpfc_stop_port_s4; 4327 break; 4328 default: 4329 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4330 "1431 Invalid HBA PCI-device group: 0x%x\n", 4331 dev_grp); 4332 return -ENODEV; 4333 break; 4334 } 4335 return 0; 4336 } 4337 4338 /** 4339 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4340 * @phba: pointer to lpfc hba data structure. 4341 * 4342 * This routine is invoked to set up the driver internal resources before the 4343 * device specific resource setup to support the HBA device it attached to. 4344 * 4345 * Return codes 4346 * 0 - successful 4347 * other values - error 4348 **/ 4349 static int 4350 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4351 { 4352 /* 4353 * Driver resources common to all SLI revisions 4354 */ 4355 atomic_set(&phba->fast_event_count, 0); 4356 spin_lock_init(&phba->hbalock); 4357 4358 /* Initialize ndlp management spinlock */ 4359 spin_lock_init(&phba->ndlp_lock); 4360 4361 INIT_LIST_HEAD(&phba->port_list); 4362 INIT_LIST_HEAD(&phba->work_list); 4363 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4364 4365 /* Initialize the wait queue head for the kernel thread */ 4366 init_waitqueue_head(&phba->work_waitq); 4367 4368 /* Initialize the scsi buffer list used by driver for scsi IO */ 4369 spin_lock_init(&phba->scsi_buf_list_lock); 4370 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4371 4372 /* Initialize the fabric iocb list */ 4373 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4374 4375 /* Initialize list to save ELS buffers */ 4376 INIT_LIST_HEAD(&phba->elsbuf); 4377 4378 /* Initialize FCF connection rec list */ 4379 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4380 4381 return 0; 4382 } 4383 4384 /** 4385 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4386 * @phba: pointer to lpfc hba data structure. 4387 * 4388 * This routine is invoked to set up the driver internal resources after the 4389 * device specific resource setup to support the HBA device it attached to. 4390 * 4391 * Return codes 4392 * 0 - successful 4393 * other values - error 4394 **/ 4395 static int 4396 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4397 { 4398 int error; 4399 4400 /* Startup the kernel thread for this host adapter. */ 4401 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4402 "lpfc_worker_%d", phba->brd_no); 4403 if (IS_ERR(phba->worker_thread)) { 4404 error = PTR_ERR(phba->worker_thread); 4405 return error; 4406 } 4407 4408 return 0; 4409 } 4410 4411 /** 4412 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4413 * @phba: pointer to lpfc hba data structure. 4414 * 4415 * This routine is invoked to unset the driver internal resources set up after 4416 * the device specific resource setup for supporting the HBA device it 4417 * attached to. 4418 **/ 4419 static void 4420 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4421 { 4422 /* Stop kernel worker thread */ 4423 kthread_stop(phba->worker_thread); 4424 } 4425 4426 /** 4427 * lpfc_free_iocb_list - Free iocb list. 4428 * @phba: pointer to lpfc hba data structure. 4429 * 4430 * This routine is invoked to free the driver's IOCB list and memory. 4431 **/ 4432 static void 4433 lpfc_free_iocb_list(struct lpfc_hba *phba) 4434 { 4435 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4436 4437 spin_lock_irq(&phba->hbalock); 4438 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4439 &phba->lpfc_iocb_list, list) { 4440 list_del(&iocbq_entry->list); 4441 kfree(iocbq_entry); 4442 phba->total_iocbq_bufs--; 4443 } 4444 spin_unlock_irq(&phba->hbalock); 4445 4446 return; 4447 } 4448 4449 /** 4450 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4451 * @phba: pointer to lpfc hba data structure. 4452 * 4453 * This routine is invoked to allocate and initizlize the driver's IOCB 4454 * list and set up the IOCB tag array accordingly. 4455 * 4456 * Return codes 4457 * 0 - successful 4458 * other values - error 4459 **/ 4460 static int 4461 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4462 { 4463 struct lpfc_iocbq *iocbq_entry = NULL; 4464 uint16_t iotag; 4465 int i; 4466 4467 /* Initialize and populate the iocb list per host. */ 4468 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4469 for (i = 0; i < iocb_count; i++) { 4470 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4471 if (iocbq_entry == NULL) { 4472 printk(KERN_ERR "%s: only allocated %d iocbs of " 4473 "expected %d count. Unloading driver.\n", 4474 __func__, i, LPFC_IOCB_LIST_CNT); 4475 goto out_free_iocbq; 4476 } 4477 4478 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4479 if (iotag == 0) { 4480 kfree(iocbq_entry); 4481 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4482 "Unloading driver.\n", __func__); 4483 goto out_free_iocbq; 4484 } 4485 iocbq_entry->sli4_xritag = NO_XRI; 4486 4487 spin_lock_irq(&phba->hbalock); 4488 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4489 phba->total_iocbq_bufs++; 4490 spin_unlock_irq(&phba->hbalock); 4491 } 4492 4493 return 0; 4494 4495 out_free_iocbq: 4496 lpfc_free_iocb_list(phba); 4497 4498 return -ENOMEM; 4499 } 4500 4501 /** 4502 * lpfc_free_sgl_list - Free sgl list. 4503 * @phba: pointer to lpfc hba data structure. 4504 * 4505 * This routine is invoked to free the driver's sgl list and memory. 4506 **/ 4507 static void 4508 lpfc_free_sgl_list(struct lpfc_hba *phba) 4509 { 4510 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4511 LIST_HEAD(sglq_list); 4512 int rc = 0; 4513 4514 spin_lock_irq(&phba->hbalock); 4515 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4516 spin_unlock_irq(&phba->hbalock); 4517 4518 list_for_each_entry_safe(sglq_entry, sglq_next, 4519 &sglq_list, list) { 4520 list_del(&sglq_entry->list); 4521 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4522 kfree(sglq_entry); 4523 phba->sli4_hba.total_sglq_bufs--; 4524 } 4525 rc = lpfc_sli4_remove_all_sgl_pages(phba); 4526 if (rc) { 4527 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4528 "2005 Unable to deregister pages from HBA: %x\n", rc); 4529 } 4530 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4531 } 4532 4533 /** 4534 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4535 * @phba: pointer to lpfc hba data structure. 4536 * 4537 * This routine is invoked to allocate the driver's active sgl memory. 4538 * This array will hold the sglq_entry's for active IOs. 4539 **/ 4540 static int 4541 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4542 { 4543 int size; 4544 size = sizeof(struct lpfc_sglq *); 4545 size *= phba->sli4_hba.max_cfg_param.max_xri; 4546 4547 phba->sli4_hba.lpfc_sglq_active_list = 4548 kzalloc(size, GFP_KERNEL); 4549 if (!phba->sli4_hba.lpfc_sglq_active_list) 4550 return -ENOMEM; 4551 return 0; 4552 } 4553 4554 /** 4555 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4556 * @phba: pointer to lpfc hba data structure. 4557 * 4558 * This routine is invoked to walk through the array of active sglq entries 4559 * and free all of the resources. 4560 * This is just a place holder for now. 4561 **/ 4562 static void 4563 lpfc_free_active_sgl(struct lpfc_hba *phba) 4564 { 4565 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4566 } 4567 4568 /** 4569 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4570 * @phba: pointer to lpfc hba data structure. 4571 * 4572 * This routine is invoked to allocate and initizlize the driver's sgl 4573 * list and set up the sgl xritag tag array accordingly. 4574 * 4575 * Return codes 4576 * 0 - successful 4577 * other values - error 4578 **/ 4579 static int 4580 lpfc_init_sgl_list(struct lpfc_hba *phba) 4581 { 4582 struct lpfc_sglq *sglq_entry = NULL; 4583 int i; 4584 int els_xri_cnt; 4585 4586 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4587 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4588 "2400 lpfc_init_sgl_list els %d.\n", 4589 els_xri_cnt); 4590 /* Initialize and populate the sglq list per host/VF. */ 4591 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4592 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4593 4594 /* Sanity check on XRI management */ 4595 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4596 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4597 "2562 No room left for SCSI XRI allocation: " 4598 "max_xri=%d, els_xri=%d\n", 4599 phba->sli4_hba.max_cfg_param.max_xri, 4600 els_xri_cnt); 4601 return -ENOMEM; 4602 } 4603 4604 /* Allocate memory for the ELS XRI management array */ 4605 phba->sli4_hba.lpfc_els_sgl_array = 4606 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4607 GFP_KERNEL); 4608 4609 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4610 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4611 "2401 Failed to allocate memory for ELS " 4612 "XRI management array of size %d.\n", 4613 els_xri_cnt); 4614 return -ENOMEM; 4615 } 4616 4617 /* Keep the SCSI XRI into the XRI management array */ 4618 phba->sli4_hba.scsi_xri_max = 4619 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4620 phba->sli4_hba.scsi_xri_cnt = 0; 4621 4622 phba->sli4_hba.lpfc_scsi_psb_array = 4623 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4624 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4625 4626 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4628 "2563 Failed to allocate memory for SCSI " 4629 "XRI management array of size %d.\n", 4630 phba->sli4_hba.scsi_xri_max); 4631 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4632 return -ENOMEM; 4633 } 4634 4635 for (i = 0; i < els_xri_cnt; i++) { 4636 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4637 if (sglq_entry == NULL) { 4638 printk(KERN_ERR "%s: only allocated %d sgls of " 4639 "expected %d count. Unloading driver.\n", 4640 __func__, i, els_xri_cnt); 4641 goto out_free_mem; 4642 } 4643 4644 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4645 if (sglq_entry->sli4_xritag == NO_XRI) { 4646 kfree(sglq_entry); 4647 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4648 "Unloading driver.\n", __func__); 4649 goto out_free_mem; 4650 } 4651 sglq_entry->buff_type = GEN_BUFF_TYPE; 4652 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4653 if (sglq_entry->virt == NULL) { 4654 kfree(sglq_entry); 4655 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4656 "Unloading driver.\n", __func__); 4657 goto out_free_mem; 4658 } 4659 sglq_entry->sgl = sglq_entry->virt; 4660 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4661 4662 /* The list order is used by later block SGL registraton */ 4663 spin_lock_irq(&phba->hbalock); 4664 sglq_entry->state = SGL_FREED; 4665 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4666 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4667 phba->sli4_hba.total_sglq_bufs++; 4668 spin_unlock_irq(&phba->hbalock); 4669 } 4670 return 0; 4671 4672 out_free_mem: 4673 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4674 lpfc_free_sgl_list(phba); 4675 return -ENOMEM; 4676 } 4677 4678 /** 4679 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4680 * @phba: pointer to lpfc hba data structure. 4681 * 4682 * This routine is invoked to post rpi header templates to the 4683 * HBA consistent with the SLI-4 interface spec. This routine 4684 * posts a PAGE_SIZE memory region to the port to hold up to 4685 * PAGE_SIZE modulo 64 rpi context headers. 4686 * No locks are held here because this is an initialization routine 4687 * called only from probe or lpfc_online when interrupts are not 4688 * enabled and the driver is reinitializing the device. 4689 * 4690 * Return codes 4691 * 0 - successful 4692 * ENOMEM - No availble memory 4693 * EIO - The mailbox failed to complete successfully. 4694 **/ 4695 int 4696 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4697 { 4698 int rc = 0; 4699 int longs; 4700 uint16_t rpi_count; 4701 struct lpfc_rpi_hdr *rpi_hdr; 4702 4703 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4704 4705 /* 4706 * Provision an rpi bitmask range for discovery. The total count 4707 * is the difference between max and base + 1. 4708 */ 4709 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4710 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4711 4712 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4713 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4714 GFP_KERNEL); 4715 if (!phba->sli4_hba.rpi_bmask) 4716 return -ENOMEM; 4717 4718 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4719 if (!rpi_hdr) { 4720 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4721 "0391 Error during rpi post operation\n"); 4722 lpfc_sli4_remove_rpis(phba); 4723 rc = -ENODEV; 4724 } 4725 4726 return rc; 4727 } 4728 4729 /** 4730 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4731 * @phba: pointer to lpfc hba data structure. 4732 * 4733 * This routine is invoked to allocate a single 4KB memory region to 4734 * support rpis and stores them in the phba. This single region 4735 * provides support for up to 64 rpis. The region is used globally 4736 * by the device. 4737 * 4738 * Returns: 4739 * A valid rpi hdr on success. 4740 * A NULL pointer on any failure. 4741 **/ 4742 struct lpfc_rpi_hdr * 4743 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4744 { 4745 uint16_t rpi_limit, curr_rpi_range; 4746 struct lpfc_dmabuf *dmabuf; 4747 struct lpfc_rpi_hdr *rpi_hdr; 4748 4749 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4750 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4751 4752 spin_lock_irq(&phba->hbalock); 4753 curr_rpi_range = phba->sli4_hba.next_rpi; 4754 spin_unlock_irq(&phba->hbalock); 4755 4756 /* 4757 * The port has a limited number of rpis. The increment here 4758 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4759 * and to allow the full max_rpi range per port. 4760 */ 4761 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4762 return NULL; 4763 4764 /* 4765 * First allocate the protocol header region for the port. The 4766 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4767 */ 4768 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4769 if (!dmabuf) 4770 return NULL; 4771 4772 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4773 LPFC_HDR_TEMPLATE_SIZE, 4774 &dmabuf->phys, 4775 GFP_KERNEL); 4776 if (!dmabuf->virt) { 4777 rpi_hdr = NULL; 4778 goto err_free_dmabuf; 4779 } 4780 4781 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4782 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4783 rpi_hdr = NULL; 4784 goto err_free_coherent; 4785 } 4786 4787 /* Save the rpi header data for cleanup later. */ 4788 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4789 if (!rpi_hdr) 4790 goto err_free_coherent; 4791 4792 rpi_hdr->dmabuf = dmabuf; 4793 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4794 rpi_hdr->page_count = 1; 4795 spin_lock_irq(&phba->hbalock); 4796 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4797 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4798 4799 /* 4800 * The next_rpi stores the next module-64 rpi value to post 4801 * in any subsequent rpi memory region postings. 4802 */ 4803 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4804 spin_unlock_irq(&phba->hbalock); 4805 return rpi_hdr; 4806 4807 err_free_coherent: 4808 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4809 dmabuf->virt, dmabuf->phys); 4810 err_free_dmabuf: 4811 kfree(dmabuf); 4812 return NULL; 4813 } 4814 4815 /** 4816 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4817 * @phba: pointer to lpfc hba data structure. 4818 * 4819 * This routine is invoked to remove all memory resources allocated 4820 * to support rpis. This routine presumes the caller has released all 4821 * rpis consumed by fabric or port logins and is prepared to have 4822 * the header pages removed. 4823 **/ 4824 void 4825 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4826 { 4827 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4828 4829 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4830 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4831 list_del(&rpi_hdr->list); 4832 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4833 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4834 kfree(rpi_hdr->dmabuf); 4835 kfree(rpi_hdr); 4836 } 4837 4838 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4839 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4840 } 4841 4842 /** 4843 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4844 * @pdev: pointer to pci device data structure. 4845 * 4846 * This routine is invoked to allocate the driver hba data structure for an 4847 * HBA device. If the allocation is successful, the phba reference to the 4848 * PCI device data structure is set. 4849 * 4850 * Return codes 4851 * pointer to @phba - successful 4852 * NULL - error 4853 **/ 4854 static struct lpfc_hba * 4855 lpfc_hba_alloc(struct pci_dev *pdev) 4856 { 4857 struct lpfc_hba *phba; 4858 4859 /* Allocate memory for HBA structure */ 4860 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4861 if (!phba) { 4862 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4863 return NULL; 4864 } 4865 4866 /* Set reference to PCI device in HBA structure */ 4867 phba->pcidev = pdev; 4868 4869 /* Assign an unused board number */ 4870 phba->brd_no = lpfc_get_instance(); 4871 if (phba->brd_no < 0) { 4872 kfree(phba); 4873 return NULL; 4874 } 4875 4876 spin_lock_init(&phba->ct_ev_lock); 4877 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4878 4879 return phba; 4880 } 4881 4882 /** 4883 * lpfc_hba_free - Free driver hba data structure with a device. 4884 * @phba: pointer to lpfc hba data structure. 4885 * 4886 * This routine is invoked to free the driver hba data structure with an 4887 * HBA device. 4888 **/ 4889 static void 4890 lpfc_hba_free(struct lpfc_hba *phba) 4891 { 4892 /* Release the driver assigned board number */ 4893 idr_remove(&lpfc_hba_index, phba->brd_no); 4894 4895 kfree(phba); 4896 return; 4897 } 4898 4899 /** 4900 * lpfc_create_shost - Create hba physical port with associated scsi host. 4901 * @phba: pointer to lpfc hba data structure. 4902 * 4903 * This routine is invoked to create HBA physical port and associate a SCSI 4904 * host with it. 4905 * 4906 * Return codes 4907 * 0 - successful 4908 * other values - error 4909 **/ 4910 static int 4911 lpfc_create_shost(struct lpfc_hba *phba) 4912 { 4913 struct lpfc_vport *vport; 4914 struct Scsi_Host *shost; 4915 4916 /* Initialize HBA FC structure */ 4917 phba->fc_edtov = FF_DEF_EDTOV; 4918 phba->fc_ratov = FF_DEF_RATOV; 4919 phba->fc_altov = FF_DEF_ALTOV; 4920 phba->fc_arbtov = FF_DEF_ARBTOV; 4921 4922 atomic_set(&phba->sdev_cnt, 0); 4923 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4924 if (!vport) 4925 return -ENODEV; 4926 4927 shost = lpfc_shost_from_vport(vport); 4928 phba->pport = vport; 4929 lpfc_debugfs_initialize(vport); 4930 /* Put reference to SCSI host to driver's device private data */ 4931 pci_set_drvdata(phba->pcidev, shost); 4932 4933 return 0; 4934 } 4935 4936 /** 4937 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4938 * @phba: pointer to lpfc hba data structure. 4939 * 4940 * This routine is invoked to destroy HBA physical port and the associated 4941 * SCSI host. 4942 **/ 4943 static void 4944 lpfc_destroy_shost(struct lpfc_hba *phba) 4945 { 4946 struct lpfc_vport *vport = phba->pport; 4947 4948 /* Destroy physical port that associated with the SCSI host */ 4949 destroy_port(vport); 4950 4951 return; 4952 } 4953 4954 /** 4955 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4956 * @phba: pointer to lpfc hba data structure. 4957 * @shost: the shost to be used to detect Block guard settings. 4958 * 4959 * This routine sets up the local Block guard protocol settings for @shost. 4960 * This routine also allocates memory for debugging bg buffers. 4961 **/ 4962 static void 4963 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4964 { 4965 int pagecnt = 10; 4966 if (lpfc_prot_mask && lpfc_prot_guard) { 4967 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4968 "1478 Registering BlockGuard with the " 4969 "SCSI layer\n"); 4970 scsi_host_set_prot(shost, lpfc_prot_mask); 4971 scsi_host_set_guard(shost, lpfc_prot_guard); 4972 } 4973 if (!_dump_buf_data) { 4974 while (pagecnt) { 4975 spin_lock_init(&_dump_buf_lock); 4976 _dump_buf_data = 4977 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4978 if (_dump_buf_data) { 4979 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4980 "9043 BLKGRD: allocated %d pages for " 4981 "_dump_buf_data at 0x%p\n", 4982 (1 << pagecnt), _dump_buf_data); 4983 _dump_buf_data_order = pagecnt; 4984 memset(_dump_buf_data, 0, 4985 ((1 << PAGE_SHIFT) << pagecnt)); 4986 break; 4987 } else 4988 --pagecnt; 4989 } 4990 if (!_dump_buf_data_order) 4991 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4992 "9044 BLKGRD: ERROR unable to allocate " 4993 "memory for hexdump\n"); 4994 } else 4995 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 4996 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 4997 "\n", _dump_buf_data); 4998 if (!_dump_buf_dif) { 4999 while (pagecnt) { 5000 _dump_buf_dif = 5001 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5002 if (_dump_buf_dif) { 5003 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5004 "9046 BLKGRD: allocated %d pages for " 5005 "_dump_buf_dif at 0x%p\n", 5006 (1 << pagecnt), _dump_buf_dif); 5007 _dump_buf_dif_order = pagecnt; 5008 memset(_dump_buf_dif, 0, 5009 ((1 << PAGE_SHIFT) << pagecnt)); 5010 break; 5011 } else 5012 --pagecnt; 5013 } 5014 if (!_dump_buf_dif_order) 5015 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5016 "9047 BLKGRD: ERROR unable to allocate " 5017 "memory for hexdump\n"); 5018 } else 5019 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5020 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5021 _dump_buf_dif); 5022 } 5023 5024 /** 5025 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5026 * @phba: pointer to lpfc hba data structure. 5027 * 5028 * This routine is invoked to perform all the necessary post initialization 5029 * setup for the device. 5030 **/ 5031 static void 5032 lpfc_post_init_setup(struct lpfc_hba *phba) 5033 { 5034 struct Scsi_Host *shost; 5035 struct lpfc_adapter_event_header adapter_event; 5036 5037 /* Get the default values for Model Name and Description */ 5038 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5039 5040 /* 5041 * hba setup may have changed the hba_queue_depth so we need to 5042 * adjust the value of can_queue. 5043 */ 5044 shost = pci_get_drvdata(phba->pcidev); 5045 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5046 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5047 lpfc_setup_bg(phba, shost); 5048 5049 lpfc_host_attrib_init(shost); 5050 5051 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5052 spin_lock_irq(shost->host_lock); 5053 lpfc_poll_start_timer(phba); 5054 spin_unlock_irq(shost->host_lock); 5055 } 5056 5057 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5058 "0428 Perform SCSI scan\n"); 5059 /* Send board arrival event to upper layer */ 5060 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5061 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5062 fc_host_post_vendor_event(shost, fc_get_event_number(), 5063 sizeof(adapter_event), 5064 (char *) &adapter_event, 5065 LPFC_NL_VENDOR_ID); 5066 return; 5067 } 5068 5069 /** 5070 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5071 * @phba: pointer to lpfc hba data structure. 5072 * 5073 * This routine is invoked to set up the PCI device memory space for device 5074 * with SLI-3 interface spec. 5075 * 5076 * Return codes 5077 * 0 - successful 5078 * other values - error 5079 **/ 5080 static int 5081 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5082 { 5083 struct pci_dev *pdev; 5084 unsigned long bar0map_len, bar2map_len; 5085 int i, hbq_count; 5086 void *ptr; 5087 int error = -ENODEV; 5088 5089 /* Obtain PCI device reference */ 5090 if (!phba->pcidev) 5091 return error; 5092 else 5093 pdev = phba->pcidev; 5094 5095 /* Set the device DMA mask size */ 5096 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5097 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5098 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5099 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5100 return error; 5101 } 5102 } 5103 5104 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5105 * required by each mapping. 5106 */ 5107 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5108 bar0map_len = pci_resource_len(pdev, 0); 5109 5110 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5111 bar2map_len = pci_resource_len(pdev, 2); 5112 5113 /* Map HBA SLIM to a kernel virtual address. */ 5114 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5115 if (!phba->slim_memmap_p) { 5116 dev_printk(KERN_ERR, &pdev->dev, 5117 "ioremap failed for SLIM memory.\n"); 5118 goto out; 5119 } 5120 5121 /* Map HBA Control Registers to a kernel virtual address. */ 5122 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5123 if (!phba->ctrl_regs_memmap_p) { 5124 dev_printk(KERN_ERR, &pdev->dev, 5125 "ioremap failed for HBA control registers.\n"); 5126 goto out_iounmap_slim; 5127 } 5128 5129 /* Allocate memory for SLI-2 structures */ 5130 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5131 SLI2_SLIM_SIZE, 5132 &phba->slim2p.phys, 5133 GFP_KERNEL); 5134 if (!phba->slim2p.virt) 5135 goto out_iounmap; 5136 5137 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5138 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5139 phba->mbox_ext = (phba->slim2p.virt + 5140 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5141 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5142 phba->IOCBs = (phba->slim2p.virt + 5143 offsetof(struct lpfc_sli2_slim, IOCBs)); 5144 5145 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5146 lpfc_sli_hbq_size(), 5147 &phba->hbqslimp.phys, 5148 GFP_KERNEL); 5149 if (!phba->hbqslimp.virt) 5150 goto out_free_slim; 5151 5152 hbq_count = lpfc_sli_hbq_count(); 5153 ptr = phba->hbqslimp.virt; 5154 for (i = 0; i < hbq_count; ++i) { 5155 phba->hbqs[i].hbq_virt = ptr; 5156 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5157 ptr += (lpfc_hbq_defs[i]->entry_count * 5158 sizeof(struct lpfc_hbq_entry)); 5159 } 5160 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5161 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5162 5163 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5164 5165 INIT_LIST_HEAD(&phba->rb_pend_list); 5166 5167 phba->MBslimaddr = phba->slim_memmap_p; 5168 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5169 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5170 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5171 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5172 5173 return 0; 5174 5175 out_free_slim: 5176 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5177 phba->slim2p.virt, phba->slim2p.phys); 5178 out_iounmap: 5179 iounmap(phba->ctrl_regs_memmap_p); 5180 out_iounmap_slim: 5181 iounmap(phba->slim_memmap_p); 5182 out: 5183 return error; 5184 } 5185 5186 /** 5187 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5188 * @phba: pointer to lpfc hba data structure. 5189 * 5190 * This routine is invoked to unset the PCI device memory space for device 5191 * with SLI-3 interface spec. 5192 **/ 5193 static void 5194 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5195 { 5196 struct pci_dev *pdev; 5197 5198 /* Obtain PCI device reference */ 5199 if (!phba->pcidev) 5200 return; 5201 else 5202 pdev = phba->pcidev; 5203 5204 /* Free coherent DMA memory allocated */ 5205 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5206 phba->hbqslimp.virt, phba->hbqslimp.phys); 5207 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5208 phba->slim2p.virt, phba->slim2p.phys); 5209 5210 /* I/O memory unmap */ 5211 iounmap(phba->ctrl_regs_memmap_p); 5212 iounmap(phba->slim_memmap_p); 5213 5214 return; 5215 } 5216 5217 /** 5218 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5219 * @phba: pointer to lpfc hba data structure. 5220 * 5221 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5222 * done and check status. 5223 * 5224 * Return 0 if successful, otherwise -ENODEV. 5225 **/ 5226 int 5227 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5228 { 5229 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg; 5230 int i, port_error = -ENODEV; 5231 5232 if (!phba->sli4_hba.STAregaddr) 5233 return -ENODEV; 5234 5235 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5236 for (i = 0; i < 3000; i++) { 5237 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 5238 /* Encounter fatal POST error, break out */ 5239 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 5240 port_error = -ENODEV; 5241 break; 5242 } 5243 if (LPFC_POST_STAGE_ARMFW_READY == 5244 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 5245 port_error = 0; 5246 break; 5247 } 5248 msleep(10); 5249 } 5250 5251 if (port_error) 5252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5253 "1408 Failure HBA POST Status: sta_reg=0x%x, " 5254 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 5255 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 5256 bf_get(lpfc_hst_state_perr, &sta_reg), 5257 bf_get(lpfc_hst_state_sfi, &sta_reg), 5258 bf_get(lpfc_hst_state_nip, &sta_reg), 5259 bf_get(lpfc_hst_state_ipc, &sta_reg), 5260 bf_get(lpfc_hst_state_xrom, &sta_reg), 5261 bf_get(lpfc_hst_state_dl, &sta_reg), 5262 bf_get(lpfc_hst_state_port_status, &sta_reg)); 5263 5264 /* Log device information */ 5265 phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr); 5266 if (bf_get(lpfc_sli_intf_valid, 5267 &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) { 5268 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5269 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 5270 "FeatureL1=0x%x, FeatureL2=0x%x\n", 5271 bf_get(lpfc_sli_intf_sli_family, 5272 &phba->sli4_hba.sli_intf), 5273 bf_get(lpfc_sli_intf_slirev, 5274 &phba->sli4_hba.sli_intf), 5275 bf_get(lpfc_sli_intf_featurelevel1, 5276 &phba->sli4_hba.sli_intf), 5277 bf_get(lpfc_sli_intf_featurelevel2, 5278 &phba->sli4_hba.sli_intf)); 5279 } 5280 phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr); 5281 phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr); 5282 /* With uncoverable error, log the error message and return error */ 5283 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 5284 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 5285 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5286 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5288 "1422 HBA Unrecoverable error: " 5289 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 5290 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", 5291 uerrlo_reg.word0, uerrhi_reg.word0, 5292 phba->sli4_hba.ue_mask_lo, 5293 phba->sli4_hba.ue_mask_hi); 5294 return -ENODEV; 5295 } 5296 5297 return port_error; 5298 } 5299 5300 /** 5301 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5302 * @phba: pointer to lpfc hba data structure. 5303 * 5304 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5305 * memory map. 5306 **/ 5307 static void 5308 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 5309 { 5310 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5311 LPFC_UERR_STATUS_LO; 5312 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5313 LPFC_UERR_STATUS_HI; 5314 phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 5315 LPFC_UE_MASK_LO; 5316 phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 5317 LPFC_UE_MASK_HI; 5318 phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p + 5319 LPFC_SLI_INTF; 5320 } 5321 5322 /** 5323 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5324 * @phba: pointer to lpfc hba data structure. 5325 * 5326 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5327 * memory map. 5328 **/ 5329 static void 5330 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5331 { 5332 5333 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5334 LPFC_HST_STATE; 5335 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5336 LPFC_HST_ISR0; 5337 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5338 LPFC_HST_IMR0; 5339 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5340 LPFC_HST_ISCR0; 5341 return; 5342 } 5343 5344 /** 5345 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5346 * @phba: pointer to lpfc hba data structure. 5347 * @vf: virtual function number 5348 * 5349 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5350 * based on the given viftual function number, @vf. 5351 * 5352 * Return 0 if successful, otherwise -ENODEV. 5353 **/ 5354 static int 5355 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5356 { 5357 if (vf > LPFC_VIR_FUNC_MAX) 5358 return -ENODEV; 5359 5360 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5361 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5362 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5363 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5364 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5365 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5366 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5367 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5368 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5369 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5370 return 0; 5371 } 5372 5373 /** 5374 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5375 * @phba: pointer to lpfc hba data structure. 5376 * 5377 * This routine is invoked to create the bootstrap mailbox 5378 * region consistent with the SLI-4 interface spec. This 5379 * routine allocates all memory necessary to communicate 5380 * mailbox commands to the port and sets up all alignment 5381 * needs. No locks are expected to be held when calling 5382 * this routine. 5383 * 5384 * Return codes 5385 * 0 - successful 5386 * ENOMEM - could not allocated memory. 5387 **/ 5388 static int 5389 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5390 { 5391 uint32_t bmbx_size; 5392 struct lpfc_dmabuf *dmabuf; 5393 struct dma_address *dma_address; 5394 uint32_t pa_addr; 5395 uint64_t phys_addr; 5396 5397 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5398 if (!dmabuf) 5399 return -ENOMEM; 5400 5401 /* 5402 * The bootstrap mailbox region is comprised of 2 parts 5403 * plus an alignment restriction of 16 bytes. 5404 */ 5405 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5406 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5407 bmbx_size, 5408 &dmabuf->phys, 5409 GFP_KERNEL); 5410 if (!dmabuf->virt) { 5411 kfree(dmabuf); 5412 return -ENOMEM; 5413 } 5414 memset(dmabuf->virt, 0, bmbx_size); 5415 5416 /* 5417 * Initialize the bootstrap mailbox pointers now so that the register 5418 * operations are simple later. The mailbox dma address is required 5419 * to be 16-byte aligned. Also align the virtual memory as each 5420 * maibox is copied into the bmbx mailbox region before issuing the 5421 * command to the port. 5422 */ 5423 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5424 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5425 5426 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5427 LPFC_ALIGN_16_BYTE); 5428 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5429 LPFC_ALIGN_16_BYTE); 5430 5431 /* 5432 * Set the high and low physical addresses now. The SLI4 alignment 5433 * requirement is 16 bytes and the mailbox is posted to the port 5434 * as two 30-bit addresses. The other data is a bit marking whether 5435 * the 30-bit address is the high or low address. 5436 * Upcast bmbx aphys to 64bits so shift instruction compiles 5437 * clean on 32 bit machines. 5438 */ 5439 dma_address = &phba->sli4_hba.bmbx.dma_address; 5440 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5441 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5442 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5443 LPFC_BMBX_BIT1_ADDR_HI); 5444 5445 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5446 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5447 LPFC_BMBX_BIT1_ADDR_LO); 5448 return 0; 5449 } 5450 5451 /** 5452 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5453 * @phba: pointer to lpfc hba data structure. 5454 * 5455 * This routine is invoked to teardown the bootstrap mailbox 5456 * region and release all host resources. This routine requires 5457 * the caller to ensure all mailbox commands recovered, no 5458 * additional mailbox comands are sent, and interrupts are disabled 5459 * before calling this routine. 5460 * 5461 **/ 5462 static void 5463 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5464 { 5465 dma_free_coherent(&phba->pcidev->dev, 5466 phba->sli4_hba.bmbx.bmbx_size, 5467 phba->sli4_hba.bmbx.dmabuf->virt, 5468 phba->sli4_hba.bmbx.dmabuf->phys); 5469 5470 kfree(phba->sli4_hba.bmbx.dmabuf); 5471 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5472 } 5473 5474 /** 5475 * lpfc_sli4_read_config - Get the config parameters. 5476 * @phba: pointer to lpfc hba data structure. 5477 * 5478 * This routine is invoked to read the configuration parameters from the HBA. 5479 * The configuration parameters are used to set the base and maximum values 5480 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5481 * allocation for the port. 5482 * 5483 * Return codes 5484 * 0 - successful 5485 * ENOMEM - No availble memory 5486 * EIO - The mailbox failed to complete successfully. 5487 **/ 5488 static int 5489 lpfc_sli4_read_config(struct lpfc_hba *phba) 5490 { 5491 LPFC_MBOXQ_t *pmb; 5492 struct lpfc_mbx_read_config *rd_config; 5493 uint32_t rc = 0; 5494 5495 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5496 if (!pmb) { 5497 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5498 "2011 Unable to allocate memory for issuing " 5499 "SLI_CONFIG_SPECIAL mailbox command\n"); 5500 return -ENOMEM; 5501 } 5502 5503 lpfc_read_config(phba, pmb); 5504 5505 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5506 if (rc != MBX_SUCCESS) { 5507 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5508 "2012 Mailbox failed , mbxCmd x%x " 5509 "READ_CONFIG, mbxStatus x%x\n", 5510 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5511 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5512 rc = -EIO; 5513 } else { 5514 rd_config = &pmb->u.mqe.un.rd_config; 5515 phba->sli4_hba.max_cfg_param.max_xri = 5516 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5517 phba->sli4_hba.max_cfg_param.xri_base = 5518 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5519 phba->sli4_hba.max_cfg_param.max_vpi = 5520 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5521 phba->sli4_hba.max_cfg_param.vpi_base = 5522 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5523 phba->sli4_hba.max_cfg_param.max_rpi = 5524 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5525 phba->sli4_hba.max_cfg_param.rpi_base = 5526 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5527 phba->sli4_hba.max_cfg_param.max_vfi = 5528 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5529 phba->sli4_hba.max_cfg_param.vfi_base = 5530 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5531 phba->sli4_hba.max_cfg_param.max_fcfi = 5532 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5533 phba->sli4_hba.max_cfg_param.fcfi_base = 5534 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5535 phba->sli4_hba.max_cfg_param.max_eq = 5536 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5537 phba->sli4_hba.max_cfg_param.max_rq = 5538 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5539 phba->sli4_hba.max_cfg_param.max_wq = 5540 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5541 phba->sli4_hba.max_cfg_param.max_cq = 5542 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5543 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5544 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5545 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5546 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5547 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5548 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5549 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5550 phba->max_vports = phba->max_vpi; 5551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5552 "2003 cfg params XRI(B:%d M:%d), " 5553 "VPI(B:%d M:%d) " 5554 "VFI(B:%d M:%d) " 5555 "RPI(B:%d M:%d) " 5556 "FCFI(B:%d M:%d)\n", 5557 phba->sli4_hba.max_cfg_param.xri_base, 5558 phba->sli4_hba.max_cfg_param.max_xri, 5559 phba->sli4_hba.max_cfg_param.vpi_base, 5560 phba->sli4_hba.max_cfg_param.max_vpi, 5561 phba->sli4_hba.max_cfg_param.vfi_base, 5562 phba->sli4_hba.max_cfg_param.max_vfi, 5563 phba->sli4_hba.max_cfg_param.rpi_base, 5564 phba->sli4_hba.max_cfg_param.max_rpi, 5565 phba->sli4_hba.max_cfg_param.fcfi_base, 5566 phba->sli4_hba.max_cfg_param.max_fcfi); 5567 } 5568 mempool_free(pmb, phba->mbox_mem_pool); 5569 5570 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5571 if (phba->cfg_hba_queue_depth > 5572 (phba->sli4_hba.max_cfg_param.max_xri - 5573 lpfc_sli4_get_els_iocb_cnt(phba))) 5574 phba->cfg_hba_queue_depth = 5575 phba->sli4_hba.max_cfg_param.max_xri - 5576 lpfc_sli4_get_els_iocb_cnt(phba); 5577 return rc; 5578 } 5579 5580 /** 5581 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 5582 * @phba: pointer to lpfc hba data structure. 5583 * 5584 * This routine is invoked to setup the host-side endian order to the 5585 * HBA consistent with the SLI-4 interface spec. 5586 * 5587 * Return codes 5588 * 0 - successful 5589 * ENOMEM - No availble memory 5590 * EIO - The mailbox failed to complete successfully. 5591 **/ 5592 static int 5593 lpfc_setup_endian_order(struct lpfc_hba *phba) 5594 { 5595 LPFC_MBOXQ_t *mboxq; 5596 uint32_t rc = 0; 5597 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5598 HOST_ENDIAN_HIGH_WORD1}; 5599 5600 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5601 if (!mboxq) { 5602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5603 "0492 Unable to allocate memory for issuing " 5604 "SLI_CONFIG_SPECIAL mailbox command\n"); 5605 return -ENOMEM; 5606 } 5607 5608 /* 5609 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 5610 * words to contain special data values and no other data. 5611 */ 5612 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5613 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5614 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5615 if (rc != MBX_SUCCESS) { 5616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5617 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 5618 "status x%x\n", 5619 rc); 5620 rc = -EIO; 5621 } 5622 5623 mempool_free(mboxq, phba->mbox_mem_pool); 5624 return rc; 5625 } 5626 5627 /** 5628 * lpfc_sli4_queue_create - Create all the SLI4 queues 5629 * @phba: pointer to lpfc hba data structure. 5630 * 5631 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5632 * operation. For each SLI4 queue type, the parameters such as queue entry 5633 * count (queue depth) shall be taken from the module parameter. For now, 5634 * we just use some constant number as place holder. 5635 * 5636 * Return codes 5637 * 0 - successful 5638 * ENOMEM - No availble memory 5639 * EIO - The mailbox failed to complete successfully. 5640 **/ 5641 static int 5642 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5643 { 5644 struct lpfc_queue *qdesc; 5645 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5646 int cfg_fcp_wq_count; 5647 int cfg_fcp_eq_count; 5648 5649 /* 5650 * Sanity check for confiugred queue parameters against the run-time 5651 * device parameters 5652 */ 5653 5654 /* Sanity check on FCP fast-path WQ parameters */ 5655 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5656 if (cfg_fcp_wq_count > 5657 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5658 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5659 LPFC_SP_WQN_DEF; 5660 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5662 "2581 Not enough WQs (%d) from " 5663 "the pci function for supporting " 5664 "FCP WQs (%d)\n", 5665 phba->sli4_hba.max_cfg_param.max_wq, 5666 phba->cfg_fcp_wq_count); 5667 goto out_error; 5668 } 5669 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5670 "2582 Not enough WQs (%d) from the pci " 5671 "function for supporting the requested " 5672 "FCP WQs (%d), the actual FCP WQs can " 5673 "be supported: %d\n", 5674 phba->sli4_hba.max_cfg_param.max_wq, 5675 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5676 } 5677 /* The actual number of FCP work queues adopted */ 5678 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5679 5680 /* Sanity check on FCP fast-path EQ parameters */ 5681 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5682 if (cfg_fcp_eq_count > 5683 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5684 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5685 LPFC_SP_EQN_DEF; 5686 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5687 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5688 "2574 Not enough EQs (%d) from the " 5689 "pci function for supporting FCP " 5690 "EQs (%d)\n", 5691 phba->sli4_hba.max_cfg_param.max_eq, 5692 phba->cfg_fcp_eq_count); 5693 goto out_error; 5694 } 5695 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5696 "2575 Not enough EQs (%d) from the pci " 5697 "function for supporting the requested " 5698 "FCP EQs (%d), the actual FCP EQs can " 5699 "be supported: %d\n", 5700 phba->sli4_hba.max_cfg_param.max_eq, 5701 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5702 } 5703 /* It does not make sense to have more EQs than WQs */ 5704 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5705 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5706 "2593 The FCP EQ count(%d) cannot be greater " 5707 "than the FCP WQ count(%d), limiting the " 5708 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5709 phba->cfg_fcp_wq_count, 5710 phba->cfg_fcp_wq_count); 5711 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5712 } 5713 /* The actual number of FCP event queues adopted */ 5714 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5715 /* The overall number of event queues used */ 5716 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5717 5718 /* 5719 * Create Event Queues (EQs) 5720 */ 5721 5722 /* Get EQ depth from module parameter, fake the default for now */ 5723 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5724 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5725 5726 /* Create slow path event queue */ 5727 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5728 phba->sli4_hba.eq_ecount); 5729 if (!qdesc) { 5730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5731 "0496 Failed allocate slow-path EQ\n"); 5732 goto out_error; 5733 } 5734 phba->sli4_hba.sp_eq = qdesc; 5735 5736 /* Create fast-path FCP Event Queue(s) */ 5737 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5738 phba->cfg_fcp_eq_count), GFP_KERNEL); 5739 if (!phba->sli4_hba.fp_eq) { 5740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5741 "2576 Failed allocate memory for fast-path " 5742 "EQ record array\n"); 5743 goto out_free_sp_eq; 5744 } 5745 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5746 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5747 phba->sli4_hba.eq_ecount); 5748 if (!qdesc) { 5749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5750 "0497 Failed allocate fast-path EQ\n"); 5751 goto out_free_fp_eq; 5752 } 5753 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5754 } 5755 5756 /* 5757 * Create Complete Queues (CQs) 5758 */ 5759 5760 /* Get CQ depth from module parameter, fake the default for now */ 5761 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5762 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5763 5764 /* Create slow-path Mailbox Command Complete Queue */ 5765 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5766 phba->sli4_hba.cq_ecount); 5767 if (!qdesc) { 5768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5769 "0500 Failed allocate slow-path mailbox CQ\n"); 5770 goto out_free_fp_eq; 5771 } 5772 phba->sli4_hba.mbx_cq = qdesc; 5773 5774 /* Create slow-path ELS Complete Queue */ 5775 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5776 phba->sli4_hba.cq_ecount); 5777 if (!qdesc) { 5778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5779 "0501 Failed allocate slow-path ELS CQ\n"); 5780 goto out_free_mbx_cq; 5781 } 5782 phba->sli4_hba.els_cq = qdesc; 5783 5784 5785 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5786 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5787 phba->cfg_fcp_eq_count), GFP_KERNEL); 5788 if (!phba->sli4_hba.fcp_cq) { 5789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5790 "2577 Failed allocate memory for fast-path " 5791 "CQ record array\n"); 5792 goto out_free_els_cq; 5793 } 5794 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5795 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5796 phba->sli4_hba.cq_ecount); 5797 if (!qdesc) { 5798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5799 "0499 Failed allocate fast-path FCP " 5800 "CQ (%d)\n", fcp_cqidx); 5801 goto out_free_fcp_cq; 5802 } 5803 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5804 } 5805 5806 /* Create Mailbox Command Queue */ 5807 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5808 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5809 5810 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5811 phba->sli4_hba.mq_ecount); 5812 if (!qdesc) { 5813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5814 "0505 Failed allocate slow-path MQ\n"); 5815 goto out_free_fcp_cq; 5816 } 5817 phba->sli4_hba.mbx_wq = qdesc; 5818 5819 /* 5820 * Create all the Work Queues (WQs) 5821 */ 5822 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5823 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5824 5825 /* Create slow-path ELS Work Queue */ 5826 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5827 phba->sli4_hba.wq_ecount); 5828 if (!qdesc) { 5829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5830 "0504 Failed allocate slow-path ELS WQ\n"); 5831 goto out_free_mbx_wq; 5832 } 5833 phba->sli4_hba.els_wq = qdesc; 5834 5835 /* Create fast-path FCP Work Queue(s) */ 5836 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5837 phba->cfg_fcp_wq_count), GFP_KERNEL); 5838 if (!phba->sli4_hba.fcp_wq) { 5839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5840 "2578 Failed allocate memory for fast-path " 5841 "WQ record array\n"); 5842 goto out_free_els_wq; 5843 } 5844 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5845 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5846 phba->sli4_hba.wq_ecount); 5847 if (!qdesc) { 5848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5849 "0503 Failed allocate fast-path FCP " 5850 "WQ (%d)\n", fcp_wqidx); 5851 goto out_free_fcp_wq; 5852 } 5853 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5854 } 5855 5856 /* 5857 * Create Receive Queue (RQ) 5858 */ 5859 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5860 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5861 5862 /* Create Receive Queue for header */ 5863 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5864 phba->sli4_hba.rq_ecount); 5865 if (!qdesc) { 5866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5867 "0506 Failed allocate receive HRQ\n"); 5868 goto out_free_fcp_wq; 5869 } 5870 phba->sli4_hba.hdr_rq = qdesc; 5871 5872 /* Create Receive Queue for data */ 5873 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5874 phba->sli4_hba.rq_ecount); 5875 if (!qdesc) { 5876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5877 "0507 Failed allocate receive DRQ\n"); 5878 goto out_free_hdr_rq; 5879 } 5880 phba->sli4_hba.dat_rq = qdesc; 5881 5882 return 0; 5883 5884 out_free_hdr_rq: 5885 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5886 phba->sli4_hba.hdr_rq = NULL; 5887 out_free_fcp_wq: 5888 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5889 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5890 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5891 } 5892 kfree(phba->sli4_hba.fcp_wq); 5893 out_free_els_wq: 5894 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5895 phba->sli4_hba.els_wq = NULL; 5896 out_free_mbx_wq: 5897 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5898 phba->sli4_hba.mbx_wq = NULL; 5899 out_free_fcp_cq: 5900 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5901 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5902 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5903 } 5904 kfree(phba->sli4_hba.fcp_cq); 5905 out_free_els_cq: 5906 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5907 phba->sli4_hba.els_cq = NULL; 5908 out_free_mbx_cq: 5909 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5910 phba->sli4_hba.mbx_cq = NULL; 5911 out_free_fp_eq: 5912 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5913 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5914 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5915 } 5916 kfree(phba->sli4_hba.fp_eq); 5917 out_free_sp_eq: 5918 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5919 phba->sli4_hba.sp_eq = NULL; 5920 out_error: 5921 return -ENOMEM; 5922 } 5923 5924 /** 5925 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5926 * @phba: pointer to lpfc hba data structure. 5927 * 5928 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5929 * operation. 5930 * 5931 * Return codes 5932 * 0 - successful 5933 * ENOMEM - No availble memory 5934 * EIO - The mailbox failed to complete successfully. 5935 **/ 5936 static void 5937 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5938 { 5939 int fcp_qidx; 5940 5941 /* Release mailbox command work queue */ 5942 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5943 phba->sli4_hba.mbx_wq = NULL; 5944 5945 /* Release ELS work queue */ 5946 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5947 phba->sli4_hba.els_wq = NULL; 5948 5949 /* Release FCP work queue */ 5950 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5951 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5952 kfree(phba->sli4_hba.fcp_wq); 5953 phba->sli4_hba.fcp_wq = NULL; 5954 5955 /* Release unsolicited receive queue */ 5956 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5957 phba->sli4_hba.hdr_rq = NULL; 5958 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5959 phba->sli4_hba.dat_rq = NULL; 5960 5961 /* Release ELS complete queue */ 5962 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5963 phba->sli4_hba.els_cq = NULL; 5964 5965 /* Release mailbox command complete queue */ 5966 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5967 phba->sli4_hba.mbx_cq = NULL; 5968 5969 /* Release FCP response complete queue */ 5970 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5971 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5972 kfree(phba->sli4_hba.fcp_cq); 5973 phba->sli4_hba.fcp_cq = NULL; 5974 5975 /* Release fast-path event queue */ 5976 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5977 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5978 kfree(phba->sli4_hba.fp_eq); 5979 phba->sli4_hba.fp_eq = NULL; 5980 5981 /* Release slow-path event queue */ 5982 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5983 phba->sli4_hba.sp_eq = NULL; 5984 5985 return; 5986 } 5987 5988 /** 5989 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5990 * @phba: pointer to lpfc hba data structure. 5991 * 5992 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5993 * operation. 5994 * 5995 * Return codes 5996 * 0 - successful 5997 * ENOMEM - No availble memory 5998 * EIO - The mailbox failed to complete successfully. 5999 **/ 6000 int 6001 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6002 { 6003 int rc = -ENOMEM; 6004 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6005 int fcp_cq_index = 0; 6006 6007 /* 6008 * Set up Event Queues (EQs) 6009 */ 6010 6011 /* Set up slow-path event queue */ 6012 if (!phba->sli4_hba.sp_eq) { 6013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6014 "0520 Slow-path EQ not allocated\n"); 6015 goto out_error; 6016 } 6017 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6018 LPFC_SP_DEF_IMAX); 6019 if (rc) { 6020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6021 "0521 Failed setup of slow-path EQ: " 6022 "rc = 0x%x\n", rc); 6023 goto out_error; 6024 } 6025 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6026 "2583 Slow-path EQ setup: queue-id=%d\n", 6027 phba->sli4_hba.sp_eq->queue_id); 6028 6029 /* Set up fast-path event queue */ 6030 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6031 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6033 "0522 Fast-path EQ (%d) not " 6034 "allocated\n", fcp_eqidx); 6035 goto out_destroy_fp_eq; 6036 } 6037 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6038 phba->cfg_fcp_imax); 6039 if (rc) { 6040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6041 "0523 Failed setup of fast-path EQ " 6042 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6043 goto out_destroy_fp_eq; 6044 } 6045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6046 "2584 Fast-path EQ setup: " 6047 "queue[%d]-id=%d\n", fcp_eqidx, 6048 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6049 } 6050 6051 /* 6052 * Set up Complete Queues (CQs) 6053 */ 6054 6055 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6056 if (!phba->sli4_hba.mbx_cq) { 6057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6058 "0528 Mailbox CQ not allocated\n"); 6059 goto out_destroy_fp_eq; 6060 } 6061 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6062 LPFC_MCQ, LPFC_MBOX); 6063 if (rc) { 6064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6065 "0529 Failed setup of slow-path mailbox CQ: " 6066 "rc = 0x%x\n", rc); 6067 goto out_destroy_fp_eq; 6068 } 6069 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6070 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6071 phba->sli4_hba.mbx_cq->queue_id, 6072 phba->sli4_hba.sp_eq->queue_id); 6073 6074 /* Set up slow-path ELS Complete Queue */ 6075 if (!phba->sli4_hba.els_cq) { 6076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6077 "0530 ELS CQ not allocated\n"); 6078 goto out_destroy_mbx_cq; 6079 } 6080 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6081 LPFC_WCQ, LPFC_ELS); 6082 if (rc) { 6083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6084 "0531 Failed setup of slow-path ELS CQ: " 6085 "rc = 0x%x\n", rc); 6086 goto out_destroy_mbx_cq; 6087 } 6088 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6089 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6090 phba->sli4_hba.els_cq->queue_id, 6091 phba->sli4_hba.sp_eq->queue_id); 6092 6093 /* Set up fast-path FCP Response Complete Queue */ 6094 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6095 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6097 "0526 Fast-path FCP CQ (%d) not " 6098 "allocated\n", fcp_cqidx); 6099 goto out_destroy_fcp_cq; 6100 } 6101 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6102 phba->sli4_hba.fp_eq[fcp_cqidx], 6103 LPFC_WCQ, LPFC_FCP); 6104 if (rc) { 6105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6106 "0527 Failed setup of fast-path FCP " 6107 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6108 goto out_destroy_fcp_cq; 6109 } 6110 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6111 "2588 FCP CQ setup: cq[%d]-id=%d, " 6112 "parent eq[%d]-id=%d\n", 6113 fcp_cqidx, 6114 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6115 fcp_cqidx, 6116 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6117 } 6118 6119 /* 6120 * Set up all the Work Queues (WQs) 6121 */ 6122 6123 /* Set up Mailbox Command Queue */ 6124 if (!phba->sli4_hba.mbx_wq) { 6125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6126 "0538 Slow-path MQ not allocated\n"); 6127 goto out_destroy_fcp_cq; 6128 } 6129 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6130 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6131 if (rc) { 6132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6133 "0539 Failed setup of slow-path MQ: " 6134 "rc = 0x%x\n", rc); 6135 goto out_destroy_fcp_cq; 6136 } 6137 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6138 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6139 phba->sli4_hba.mbx_wq->queue_id, 6140 phba->sli4_hba.mbx_cq->queue_id); 6141 6142 /* Set up slow-path ELS Work Queue */ 6143 if (!phba->sli4_hba.els_wq) { 6144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6145 "0536 Slow-path ELS WQ not allocated\n"); 6146 goto out_destroy_mbx_wq; 6147 } 6148 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6149 phba->sli4_hba.els_cq, LPFC_ELS); 6150 if (rc) { 6151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6152 "0537 Failed setup of slow-path ELS WQ: " 6153 "rc = 0x%x\n", rc); 6154 goto out_destroy_mbx_wq; 6155 } 6156 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6157 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6158 phba->sli4_hba.els_wq->queue_id, 6159 phba->sli4_hba.els_cq->queue_id); 6160 6161 /* Set up fast-path FCP Work Queue */ 6162 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6163 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6165 "0534 Fast-path FCP WQ (%d) not " 6166 "allocated\n", fcp_wqidx); 6167 goto out_destroy_fcp_wq; 6168 } 6169 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6170 phba->sli4_hba.fcp_cq[fcp_cq_index], 6171 LPFC_FCP); 6172 if (rc) { 6173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6174 "0535 Failed setup of fast-path FCP " 6175 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6176 goto out_destroy_fcp_wq; 6177 } 6178 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6179 "2591 FCP WQ setup: wq[%d]-id=%d, " 6180 "parent cq[%d]-id=%d\n", 6181 fcp_wqidx, 6182 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6183 fcp_cq_index, 6184 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6185 /* Round robin FCP Work Queue's Completion Queue assignment */ 6186 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6187 } 6188 6189 /* 6190 * Create Receive Queue (RQ) 6191 */ 6192 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6194 "0540 Receive Queue not allocated\n"); 6195 goto out_destroy_fcp_wq; 6196 } 6197 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6198 phba->sli4_hba.els_cq, LPFC_USOL); 6199 if (rc) { 6200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6201 "0541 Failed setup of Receive Queue: " 6202 "rc = 0x%x\n", rc); 6203 goto out_destroy_fcp_wq; 6204 } 6205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6206 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6207 "parent cq-id=%d\n", 6208 phba->sli4_hba.hdr_rq->queue_id, 6209 phba->sli4_hba.dat_rq->queue_id, 6210 phba->sli4_hba.els_cq->queue_id); 6211 return 0; 6212 6213 out_destroy_fcp_wq: 6214 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6215 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6216 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6217 out_destroy_mbx_wq: 6218 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6219 out_destroy_fcp_cq: 6220 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6221 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6222 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6223 out_destroy_mbx_cq: 6224 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6225 out_destroy_fp_eq: 6226 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6227 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6228 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6229 out_error: 6230 return rc; 6231 } 6232 6233 /** 6234 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6235 * @phba: pointer to lpfc hba data structure. 6236 * 6237 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6238 * operation. 6239 * 6240 * Return codes 6241 * 0 - successful 6242 * ENOMEM - No availble memory 6243 * EIO - The mailbox failed to complete successfully. 6244 **/ 6245 void 6246 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6247 { 6248 int fcp_qidx; 6249 6250 /* Unset mailbox command work queue */ 6251 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6252 /* Unset ELS work queue */ 6253 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6254 /* Unset unsolicited receive queue */ 6255 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6256 /* Unset FCP work queue */ 6257 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6258 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6259 /* Unset mailbox command complete queue */ 6260 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6261 /* Unset ELS complete queue */ 6262 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6263 /* Unset FCP response complete queue */ 6264 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6265 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6266 /* Unset fast-path event queue */ 6267 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6268 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6269 /* Unset slow-path event queue */ 6270 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6271 } 6272 6273 /** 6274 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6275 * @phba: pointer to lpfc hba data structure. 6276 * 6277 * This routine is invoked to allocate and set up a pool of completion queue 6278 * events. The body of the completion queue event is a completion queue entry 6279 * CQE. For now, this pool is used for the interrupt service routine to queue 6280 * the following HBA completion queue events for the worker thread to process: 6281 * - Mailbox asynchronous events 6282 * - Receive queue completion unsolicited events 6283 * Later, this can be used for all the slow-path events. 6284 * 6285 * Return codes 6286 * 0 - successful 6287 * -ENOMEM - No availble memory 6288 **/ 6289 static int 6290 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6291 { 6292 struct lpfc_cq_event *cq_event; 6293 int i; 6294 6295 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6296 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6297 if (!cq_event) 6298 goto out_pool_create_fail; 6299 list_add_tail(&cq_event->list, 6300 &phba->sli4_hba.sp_cqe_event_pool); 6301 } 6302 return 0; 6303 6304 out_pool_create_fail: 6305 lpfc_sli4_cq_event_pool_destroy(phba); 6306 return -ENOMEM; 6307 } 6308 6309 /** 6310 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6311 * @phba: pointer to lpfc hba data structure. 6312 * 6313 * This routine is invoked to free the pool of completion queue events at 6314 * driver unload time. Note that, it is the responsibility of the driver 6315 * cleanup routine to free all the outstanding completion-queue events 6316 * allocated from this pool back into the pool before invoking this routine 6317 * to destroy the pool. 6318 **/ 6319 static void 6320 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6321 { 6322 struct lpfc_cq_event *cq_event, *next_cq_event; 6323 6324 list_for_each_entry_safe(cq_event, next_cq_event, 6325 &phba->sli4_hba.sp_cqe_event_pool, list) { 6326 list_del(&cq_event->list); 6327 kfree(cq_event); 6328 } 6329 } 6330 6331 /** 6332 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6333 * @phba: pointer to lpfc hba data structure. 6334 * 6335 * This routine is the lock free version of the API invoked to allocate a 6336 * completion-queue event from the free pool. 6337 * 6338 * Return: Pointer to the newly allocated completion-queue event if successful 6339 * NULL otherwise. 6340 **/ 6341 struct lpfc_cq_event * 6342 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6343 { 6344 struct lpfc_cq_event *cq_event = NULL; 6345 6346 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6347 struct lpfc_cq_event, list); 6348 return cq_event; 6349 } 6350 6351 /** 6352 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6353 * @phba: pointer to lpfc hba data structure. 6354 * 6355 * This routine is the lock version of the API invoked to allocate a 6356 * completion-queue event from the free pool. 6357 * 6358 * Return: Pointer to the newly allocated completion-queue event if successful 6359 * NULL otherwise. 6360 **/ 6361 struct lpfc_cq_event * 6362 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6363 { 6364 struct lpfc_cq_event *cq_event; 6365 unsigned long iflags; 6366 6367 spin_lock_irqsave(&phba->hbalock, iflags); 6368 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6369 spin_unlock_irqrestore(&phba->hbalock, iflags); 6370 return cq_event; 6371 } 6372 6373 /** 6374 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6375 * @phba: pointer to lpfc hba data structure. 6376 * @cq_event: pointer to the completion queue event to be freed. 6377 * 6378 * This routine is the lock free version of the API invoked to release a 6379 * completion-queue event back into the free pool. 6380 **/ 6381 void 6382 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6383 struct lpfc_cq_event *cq_event) 6384 { 6385 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6386 } 6387 6388 /** 6389 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6390 * @phba: pointer to lpfc hba data structure. 6391 * @cq_event: pointer to the completion queue event to be freed. 6392 * 6393 * This routine is the lock version of the API invoked to release a 6394 * completion-queue event back into the free pool. 6395 **/ 6396 void 6397 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6398 struct lpfc_cq_event *cq_event) 6399 { 6400 unsigned long iflags; 6401 spin_lock_irqsave(&phba->hbalock, iflags); 6402 __lpfc_sli4_cq_event_release(phba, cq_event); 6403 spin_unlock_irqrestore(&phba->hbalock, iflags); 6404 } 6405 6406 /** 6407 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6408 * @phba: pointer to lpfc hba data structure. 6409 * 6410 * This routine is to free all the pending completion-queue events to the 6411 * back into the free pool for device reset. 6412 **/ 6413 static void 6414 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6415 { 6416 LIST_HEAD(cqelist); 6417 struct lpfc_cq_event *cqe; 6418 unsigned long iflags; 6419 6420 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6421 spin_lock_irqsave(&phba->hbalock, iflags); 6422 /* Pending FCP XRI abort events */ 6423 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6424 &cqelist); 6425 /* Pending ELS XRI abort events */ 6426 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6427 &cqelist); 6428 /* Pending asynnc events */ 6429 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6430 &cqelist); 6431 spin_unlock_irqrestore(&phba->hbalock, iflags); 6432 6433 while (!list_empty(&cqelist)) { 6434 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6435 lpfc_sli4_cq_event_release(phba, cqe); 6436 } 6437 } 6438 6439 /** 6440 * lpfc_pci_function_reset - Reset pci function. 6441 * @phba: pointer to lpfc hba data structure. 6442 * 6443 * This routine is invoked to request a PCI function reset. It will destroys 6444 * all resources assigned to the PCI function which originates this request. 6445 * 6446 * Return codes 6447 * 0 - successful 6448 * ENOMEM - No availble memory 6449 * EIO - The mailbox failed to complete successfully. 6450 **/ 6451 int 6452 lpfc_pci_function_reset(struct lpfc_hba *phba) 6453 { 6454 LPFC_MBOXQ_t *mboxq; 6455 uint32_t rc = 0; 6456 uint32_t shdr_status, shdr_add_status; 6457 union lpfc_sli4_cfg_shdr *shdr; 6458 6459 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6460 if (!mboxq) { 6461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6462 "0494 Unable to allocate memory for issuing " 6463 "SLI_FUNCTION_RESET mailbox command\n"); 6464 return -ENOMEM; 6465 } 6466 6467 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 6468 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6469 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6470 LPFC_SLI4_MBX_EMBED); 6471 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6472 shdr = (union lpfc_sli4_cfg_shdr *) 6473 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6474 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6475 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6476 if (rc != MBX_TIMEOUT) 6477 mempool_free(mboxq, phba->mbox_mem_pool); 6478 if (shdr_status || shdr_add_status || rc) { 6479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6480 "0495 SLI_FUNCTION_RESET mailbox failed with " 6481 "status x%x add_status x%x, mbx status x%x\n", 6482 shdr_status, shdr_add_status, rc); 6483 rc = -ENXIO; 6484 } 6485 return rc; 6486 } 6487 6488 /** 6489 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6490 * @phba: pointer to lpfc hba data structure. 6491 * @cnt: number of nop mailbox commands to send. 6492 * 6493 * This routine is invoked to send a number @cnt of NOP mailbox command and 6494 * wait for each command to complete. 6495 * 6496 * Return: the number of NOP mailbox command completed. 6497 **/ 6498 static int 6499 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6500 { 6501 LPFC_MBOXQ_t *mboxq; 6502 int length, cmdsent; 6503 uint32_t mbox_tmo; 6504 uint32_t rc = 0; 6505 uint32_t shdr_status, shdr_add_status; 6506 union lpfc_sli4_cfg_shdr *shdr; 6507 6508 if (cnt == 0) { 6509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6510 "2518 Requested to send 0 NOP mailbox cmd\n"); 6511 return cnt; 6512 } 6513 6514 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6515 if (!mboxq) { 6516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6517 "2519 Unable to allocate memory for issuing " 6518 "NOP mailbox command\n"); 6519 return 0; 6520 } 6521 6522 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6523 length = (sizeof(struct lpfc_mbx_nop) - 6524 sizeof(struct lpfc_sli4_cfg_mhdr)); 6525 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6526 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6527 6528 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6529 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6530 if (!phba->sli4_hba.intr_enable) 6531 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6532 else 6533 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6534 if (rc == MBX_TIMEOUT) 6535 break; 6536 /* Check return status */ 6537 shdr = (union lpfc_sli4_cfg_shdr *) 6538 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6539 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6540 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6541 &shdr->response); 6542 if (shdr_status || shdr_add_status || rc) { 6543 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6544 "2520 NOP mailbox command failed " 6545 "status x%x add_status x%x mbx " 6546 "status x%x\n", shdr_status, 6547 shdr_add_status, rc); 6548 break; 6549 } 6550 } 6551 6552 if (rc != MBX_TIMEOUT) 6553 mempool_free(mboxq, phba->mbox_mem_pool); 6554 6555 return cmdsent; 6556 } 6557 6558 /** 6559 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 6560 * @phba: pointer to lpfc hba data structure. 6561 * @fcfi: fcf index. 6562 * 6563 * This routine is invoked to unregister a FCFI from device. 6564 **/ 6565 void 6566 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 6567 { 6568 LPFC_MBOXQ_t *mbox; 6569 uint32_t mbox_tmo; 6570 int rc; 6571 unsigned long flags; 6572 6573 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6574 6575 if (!mbox) 6576 return; 6577 6578 lpfc_unreg_fcfi(mbox, fcfi); 6579 6580 if (!phba->sli4_hba.intr_enable) 6581 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 6582 else { 6583 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6584 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 6585 } 6586 if (rc != MBX_TIMEOUT) 6587 mempool_free(mbox, phba->mbox_mem_pool); 6588 if (rc != MBX_SUCCESS) 6589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6590 "2517 Unregister FCFI command failed " 6591 "status %d, mbxStatus x%x\n", rc, 6592 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 6593 else { 6594 spin_lock_irqsave(&phba->hbalock, flags); 6595 /* Mark the FCFI is no longer registered */ 6596 phba->fcf.fcf_flag &= 6597 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE); 6598 spin_unlock_irqrestore(&phba->hbalock, flags); 6599 } 6600 } 6601 6602 /** 6603 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6604 * @phba: pointer to lpfc hba data structure. 6605 * 6606 * This routine is invoked to set up the PCI device memory space for device 6607 * with SLI-4 interface spec. 6608 * 6609 * Return codes 6610 * 0 - successful 6611 * other values - error 6612 **/ 6613 static int 6614 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6615 { 6616 struct pci_dev *pdev; 6617 unsigned long bar0map_len, bar1map_len, bar2map_len; 6618 int error = -ENODEV; 6619 6620 /* Obtain PCI device reference */ 6621 if (!phba->pcidev) 6622 return error; 6623 else 6624 pdev = phba->pcidev; 6625 6626 /* Set the device DMA mask size */ 6627 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6628 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6629 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6630 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6631 return error; 6632 } 6633 } 6634 6635 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 6636 * number of bytes required by each mapping. They are actually 6637 * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device. 6638 */ 6639 if (pci_resource_start(pdev, 0)) { 6640 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6641 bar0map_len = pci_resource_len(pdev, 0); 6642 } else { 6643 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6644 bar0map_len = pci_resource_len(pdev, 1); 6645 } 6646 phba->pci_bar1_map = pci_resource_start(pdev, 2); 6647 bar1map_len = pci_resource_len(pdev, 2); 6648 6649 phba->pci_bar2_map = pci_resource_start(pdev, 4); 6650 bar2map_len = pci_resource_len(pdev, 4); 6651 6652 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 6653 phba->sli4_hba.conf_regs_memmap_p = 6654 ioremap(phba->pci_bar0_map, bar0map_len); 6655 if (!phba->sli4_hba.conf_regs_memmap_p) { 6656 dev_printk(KERN_ERR, &pdev->dev, 6657 "ioremap failed for SLI4 PCI config registers.\n"); 6658 goto out; 6659 } 6660 6661 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 6662 phba->sli4_hba.ctrl_regs_memmap_p = 6663 ioremap(phba->pci_bar1_map, bar1map_len); 6664 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 6665 dev_printk(KERN_ERR, &pdev->dev, 6666 "ioremap failed for SLI4 HBA control registers.\n"); 6667 goto out_iounmap_conf; 6668 } 6669 6670 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 6671 phba->sli4_hba.drbl_regs_memmap_p = 6672 ioremap(phba->pci_bar2_map, bar2map_len); 6673 if (!phba->sli4_hba.drbl_regs_memmap_p) { 6674 dev_printk(KERN_ERR, &pdev->dev, 6675 "ioremap failed for SLI4 HBA doorbell registers.\n"); 6676 goto out_iounmap_ctrl; 6677 } 6678 6679 /* Set up BAR0 PCI config space register memory map */ 6680 lpfc_sli4_bar0_register_memmap(phba); 6681 6682 /* Set up BAR1 register memory map */ 6683 lpfc_sli4_bar1_register_memmap(phba); 6684 6685 /* Set up BAR2 register memory map */ 6686 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 6687 if (error) 6688 goto out_iounmap_all; 6689 6690 return 0; 6691 6692 out_iounmap_all: 6693 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6694 out_iounmap_ctrl: 6695 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6696 out_iounmap_conf: 6697 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6698 out: 6699 return error; 6700 } 6701 6702 /** 6703 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6704 * @phba: pointer to lpfc hba data structure. 6705 * 6706 * This routine is invoked to unset the PCI device memory space for device 6707 * with SLI-4 interface spec. 6708 **/ 6709 static void 6710 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6711 { 6712 struct pci_dev *pdev; 6713 6714 /* Obtain PCI device reference */ 6715 if (!phba->pcidev) 6716 return; 6717 else 6718 pdev = phba->pcidev; 6719 6720 /* Free coherent DMA memory allocated */ 6721 6722 /* Unmap I/O memory space */ 6723 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6724 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6725 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6726 6727 return; 6728 } 6729 6730 /** 6731 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6732 * @phba: pointer to lpfc hba data structure. 6733 * 6734 * This routine is invoked to enable the MSI-X interrupt vectors to device 6735 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6736 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6737 * invoked, enables either all or nothing, depending on the current 6738 * availability of PCI vector resources. The device driver is responsible 6739 * for calling the individual request_irq() to register each MSI-X vector 6740 * with a interrupt handler, which is done in this function. Note that 6741 * later when device is unloading, the driver should always call free_irq() 6742 * on all MSI-X vectors it has done request_irq() on before calling 6743 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6744 * will be left with MSI-X enabled and leaks its vectors. 6745 * 6746 * Return codes 6747 * 0 - successful 6748 * other values - error 6749 **/ 6750 static int 6751 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6752 { 6753 int rc, i; 6754 LPFC_MBOXQ_t *pmb; 6755 6756 /* Set up MSI-X multi-message vectors */ 6757 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6758 phba->msix_entries[i].entry = i; 6759 6760 /* Configure MSI-X capability structure */ 6761 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6762 ARRAY_SIZE(phba->msix_entries)); 6763 if (rc) { 6764 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6765 "0420 PCI enable MSI-X failed (%d)\n", rc); 6766 goto msi_fail_out; 6767 } 6768 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6769 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6770 "0477 MSI-X entry[%d]: vector=x%x " 6771 "message=%d\n", i, 6772 phba->msix_entries[i].vector, 6773 phba->msix_entries[i].entry); 6774 /* 6775 * Assign MSI-X vectors to interrupt handlers 6776 */ 6777 6778 /* vector-0 is associated to slow-path handler */ 6779 rc = request_irq(phba->msix_entries[0].vector, 6780 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6781 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6782 if (rc) { 6783 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6784 "0421 MSI-X slow-path request_irq failed " 6785 "(%d)\n", rc); 6786 goto msi_fail_out; 6787 } 6788 6789 /* vector-1 is associated to fast-path handler */ 6790 rc = request_irq(phba->msix_entries[1].vector, 6791 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6792 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6793 6794 if (rc) { 6795 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6796 "0429 MSI-X fast-path request_irq failed " 6797 "(%d)\n", rc); 6798 goto irq_fail_out; 6799 } 6800 6801 /* 6802 * Configure HBA MSI-X attention conditions to messages 6803 */ 6804 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6805 6806 if (!pmb) { 6807 rc = -ENOMEM; 6808 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6809 "0474 Unable to allocate memory for issuing " 6810 "MBOX_CONFIG_MSI command\n"); 6811 goto mem_fail_out; 6812 } 6813 rc = lpfc_config_msi(phba, pmb); 6814 if (rc) 6815 goto mbx_fail_out; 6816 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6817 if (rc != MBX_SUCCESS) { 6818 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6819 "0351 Config MSI mailbox command failed, " 6820 "mbxCmd x%x, mbxStatus x%x\n", 6821 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6822 goto mbx_fail_out; 6823 } 6824 6825 /* Free memory allocated for mailbox command */ 6826 mempool_free(pmb, phba->mbox_mem_pool); 6827 return rc; 6828 6829 mbx_fail_out: 6830 /* Free memory allocated for mailbox command */ 6831 mempool_free(pmb, phba->mbox_mem_pool); 6832 6833 mem_fail_out: 6834 /* free the irq already requested */ 6835 free_irq(phba->msix_entries[1].vector, phba); 6836 6837 irq_fail_out: 6838 /* free the irq already requested */ 6839 free_irq(phba->msix_entries[0].vector, phba); 6840 6841 msi_fail_out: 6842 /* Unconfigure MSI-X capability structure */ 6843 pci_disable_msix(phba->pcidev); 6844 return rc; 6845 } 6846 6847 /** 6848 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6849 * @phba: pointer to lpfc hba data structure. 6850 * 6851 * This routine is invoked to release the MSI-X vectors and then disable the 6852 * MSI-X interrupt mode to device with SLI-3 interface spec. 6853 **/ 6854 static void 6855 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6856 { 6857 int i; 6858 6859 /* Free up MSI-X multi-message vectors */ 6860 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6861 free_irq(phba->msix_entries[i].vector, phba); 6862 /* Disable MSI-X */ 6863 pci_disable_msix(phba->pcidev); 6864 6865 return; 6866 } 6867 6868 /** 6869 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6870 * @phba: pointer to lpfc hba data structure. 6871 * 6872 * This routine is invoked to enable the MSI interrupt mode to device with 6873 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6874 * enable the MSI vector. The device driver is responsible for calling the 6875 * request_irq() to register MSI vector with a interrupt the handler, which 6876 * is done in this function. 6877 * 6878 * Return codes 6879 * 0 - successful 6880 * other values - error 6881 */ 6882 static int 6883 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6884 { 6885 int rc; 6886 6887 rc = pci_enable_msi(phba->pcidev); 6888 if (!rc) 6889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6890 "0462 PCI enable MSI mode success.\n"); 6891 else { 6892 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6893 "0471 PCI enable MSI mode failed (%d)\n", rc); 6894 return rc; 6895 } 6896 6897 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6898 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6899 if (rc) { 6900 pci_disable_msi(phba->pcidev); 6901 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6902 "0478 MSI request_irq failed (%d)\n", rc); 6903 } 6904 return rc; 6905 } 6906 6907 /** 6908 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6909 * @phba: pointer to lpfc hba data structure. 6910 * 6911 * This routine is invoked to disable the MSI interrupt mode to device with 6912 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6913 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6914 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6915 * its vector. 6916 */ 6917 static void 6918 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6919 { 6920 free_irq(phba->pcidev->irq, phba); 6921 pci_disable_msi(phba->pcidev); 6922 return; 6923 } 6924 6925 /** 6926 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6927 * @phba: pointer to lpfc hba data structure. 6928 * 6929 * This routine is invoked to enable device interrupt and associate driver's 6930 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6931 * spec. Depends on the interrupt mode configured to the driver, the driver 6932 * will try to fallback from the configured interrupt mode to an interrupt 6933 * mode which is supported by the platform, kernel, and device in the order 6934 * of: 6935 * MSI-X -> MSI -> IRQ. 6936 * 6937 * Return codes 6938 * 0 - successful 6939 * other values - error 6940 **/ 6941 static uint32_t 6942 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6943 { 6944 uint32_t intr_mode = LPFC_INTR_ERROR; 6945 int retval; 6946 6947 if (cfg_mode == 2) { 6948 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6949 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6950 if (!retval) { 6951 /* Now, try to enable MSI-X interrupt mode */ 6952 retval = lpfc_sli_enable_msix(phba); 6953 if (!retval) { 6954 /* Indicate initialization to MSI-X mode */ 6955 phba->intr_type = MSIX; 6956 intr_mode = 2; 6957 } 6958 } 6959 } 6960 6961 /* Fallback to MSI if MSI-X initialization failed */ 6962 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6963 retval = lpfc_sli_enable_msi(phba); 6964 if (!retval) { 6965 /* Indicate initialization to MSI mode */ 6966 phba->intr_type = MSI; 6967 intr_mode = 1; 6968 } 6969 } 6970 6971 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6972 if (phba->intr_type == NONE) { 6973 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6974 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6975 if (!retval) { 6976 /* Indicate initialization to INTx mode */ 6977 phba->intr_type = INTx; 6978 intr_mode = 0; 6979 } 6980 } 6981 return intr_mode; 6982 } 6983 6984 /** 6985 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6986 * @phba: pointer to lpfc hba data structure. 6987 * 6988 * This routine is invoked to disable device interrupt and disassociate the 6989 * driver's interrupt handler(s) from interrupt vector(s) to device with 6990 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6991 * release the interrupt vector(s) for the message signaled interrupt. 6992 **/ 6993 static void 6994 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6995 { 6996 /* Disable the currently initialized interrupt mode */ 6997 if (phba->intr_type == MSIX) 6998 lpfc_sli_disable_msix(phba); 6999 else if (phba->intr_type == MSI) 7000 lpfc_sli_disable_msi(phba); 7001 else if (phba->intr_type == INTx) 7002 free_irq(phba->pcidev->irq, phba); 7003 7004 /* Reset interrupt management states */ 7005 phba->intr_type = NONE; 7006 phba->sli.slistat.sli_intr = 0; 7007 7008 return; 7009 } 7010 7011 /** 7012 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7013 * @phba: pointer to lpfc hba data structure. 7014 * 7015 * This routine is invoked to enable the MSI-X interrupt vectors to device 7016 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7017 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7018 * enables either all or nothing, depending on the current availability of 7019 * PCI vector resources. The device driver is responsible for calling the 7020 * individual request_irq() to register each MSI-X vector with a interrupt 7021 * handler, which is done in this function. Note that later when device is 7022 * unloading, the driver should always call free_irq() on all MSI-X vectors 7023 * it has done request_irq() on before calling pci_disable_msix(). Failure 7024 * to do so results in a BUG_ON() and a device will be left with MSI-X 7025 * enabled and leaks its vectors. 7026 * 7027 * Return codes 7028 * 0 - successful 7029 * other values - error 7030 **/ 7031 static int 7032 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7033 { 7034 int vectors, rc, index; 7035 7036 /* Set up MSI-X multi-message vectors */ 7037 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7038 phba->sli4_hba.msix_entries[index].entry = index; 7039 7040 /* Configure MSI-X capability structure */ 7041 vectors = phba->sli4_hba.cfg_eqn; 7042 enable_msix_vectors: 7043 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7044 vectors); 7045 if (rc > 1) { 7046 vectors = rc; 7047 goto enable_msix_vectors; 7048 } else if (rc) { 7049 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7050 "0484 PCI enable MSI-X failed (%d)\n", rc); 7051 goto msi_fail_out; 7052 } 7053 7054 /* Log MSI-X vector assignment */ 7055 for (index = 0; index < vectors; index++) 7056 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7057 "0489 MSI-X entry[%d]: vector=x%x " 7058 "message=%d\n", index, 7059 phba->sli4_hba.msix_entries[index].vector, 7060 phba->sli4_hba.msix_entries[index].entry); 7061 /* 7062 * Assign MSI-X vectors to interrupt handlers 7063 */ 7064 7065 /* The first vector must associated to slow-path handler for MQ */ 7066 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7067 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7068 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7069 if (rc) { 7070 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7071 "0485 MSI-X slow-path request_irq failed " 7072 "(%d)\n", rc); 7073 goto msi_fail_out; 7074 } 7075 7076 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7077 for (index = 1; index < vectors; index++) { 7078 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7079 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7080 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7081 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7082 LPFC_FP_DRIVER_HANDLER_NAME, 7083 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7084 if (rc) { 7085 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7086 "0486 MSI-X fast-path (%d) " 7087 "request_irq failed (%d)\n", index, rc); 7088 goto cfg_fail_out; 7089 } 7090 } 7091 phba->sli4_hba.msix_vec_nr = vectors; 7092 7093 return rc; 7094 7095 cfg_fail_out: 7096 /* free the irq already requested */ 7097 for (--index; index >= 1; index--) 7098 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7099 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7100 7101 /* free the irq already requested */ 7102 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7103 7104 msi_fail_out: 7105 /* Unconfigure MSI-X capability structure */ 7106 pci_disable_msix(phba->pcidev); 7107 return rc; 7108 } 7109 7110 /** 7111 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7112 * @phba: pointer to lpfc hba data structure. 7113 * 7114 * This routine is invoked to release the MSI-X vectors and then disable the 7115 * MSI-X interrupt mode to device with SLI-4 interface spec. 7116 **/ 7117 static void 7118 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7119 { 7120 int index; 7121 7122 /* Free up MSI-X multi-message vectors */ 7123 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7124 7125 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7126 free_irq(phba->sli4_hba.msix_entries[index].vector, 7127 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7128 7129 /* Disable MSI-X */ 7130 pci_disable_msix(phba->pcidev); 7131 7132 return; 7133 } 7134 7135 /** 7136 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7137 * @phba: pointer to lpfc hba data structure. 7138 * 7139 * This routine is invoked to enable the MSI interrupt mode to device with 7140 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7141 * to enable the MSI vector. The device driver is responsible for calling 7142 * the request_irq() to register MSI vector with a interrupt the handler, 7143 * which is done in this function. 7144 * 7145 * Return codes 7146 * 0 - successful 7147 * other values - error 7148 **/ 7149 static int 7150 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7151 { 7152 int rc, index; 7153 7154 rc = pci_enable_msi(phba->pcidev); 7155 if (!rc) 7156 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7157 "0487 PCI enable MSI mode success.\n"); 7158 else { 7159 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7160 "0488 PCI enable MSI mode failed (%d)\n", rc); 7161 return rc; 7162 } 7163 7164 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7165 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7166 if (rc) { 7167 pci_disable_msi(phba->pcidev); 7168 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7169 "0490 MSI request_irq failed (%d)\n", rc); 7170 return rc; 7171 } 7172 7173 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7174 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7175 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7176 } 7177 7178 return 0; 7179 } 7180 7181 /** 7182 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7183 * @phba: pointer to lpfc hba data structure. 7184 * 7185 * This routine is invoked to disable the MSI interrupt mode to device with 7186 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7187 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7188 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7189 * its vector. 7190 **/ 7191 static void 7192 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7193 { 7194 free_irq(phba->pcidev->irq, phba); 7195 pci_disable_msi(phba->pcidev); 7196 return; 7197 } 7198 7199 /** 7200 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7201 * @phba: pointer to lpfc hba data structure. 7202 * 7203 * This routine is invoked to enable device interrupt and associate driver's 7204 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7205 * interface spec. Depends on the interrupt mode configured to the driver, 7206 * the driver will try to fallback from the configured interrupt mode to an 7207 * interrupt mode which is supported by the platform, kernel, and device in 7208 * the order of: 7209 * MSI-X -> MSI -> IRQ. 7210 * 7211 * Return codes 7212 * 0 - successful 7213 * other values - error 7214 **/ 7215 static uint32_t 7216 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7217 { 7218 uint32_t intr_mode = LPFC_INTR_ERROR; 7219 int retval, index; 7220 7221 if (cfg_mode == 2) { 7222 /* Preparation before conf_msi mbox cmd */ 7223 retval = 0; 7224 if (!retval) { 7225 /* Now, try to enable MSI-X interrupt mode */ 7226 retval = lpfc_sli4_enable_msix(phba); 7227 if (!retval) { 7228 /* Indicate initialization to MSI-X mode */ 7229 phba->intr_type = MSIX; 7230 intr_mode = 2; 7231 } 7232 } 7233 } 7234 7235 /* Fallback to MSI if MSI-X initialization failed */ 7236 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7237 retval = lpfc_sli4_enable_msi(phba); 7238 if (!retval) { 7239 /* Indicate initialization to MSI mode */ 7240 phba->intr_type = MSI; 7241 intr_mode = 1; 7242 } 7243 } 7244 7245 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7246 if (phba->intr_type == NONE) { 7247 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7248 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7249 if (!retval) { 7250 /* Indicate initialization to INTx mode */ 7251 phba->intr_type = INTx; 7252 intr_mode = 0; 7253 for (index = 0; index < phba->cfg_fcp_eq_count; 7254 index++) { 7255 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7256 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7257 } 7258 } 7259 } 7260 return intr_mode; 7261 } 7262 7263 /** 7264 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7265 * @phba: pointer to lpfc hba data structure. 7266 * 7267 * This routine is invoked to disable device interrupt and disassociate 7268 * the driver's interrupt handler(s) from interrupt vector(s) to device 7269 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7270 * will release the interrupt vector(s) for the message signaled interrupt. 7271 **/ 7272 static void 7273 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7274 { 7275 /* Disable the currently initialized interrupt mode */ 7276 if (phba->intr_type == MSIX) 7277 lpfc_sli4_disable_msix(phba); 7278 else if (phba->intr_type == MSI) 7279 lpfc_sli4_disable_msi(phba); 7280 else if (phba->intr_type == INTx) 7281 free_irq(phba->pcidev->irq, phba); 7282 7283 /* Reset interrupt management states */ 7284 phba->intr_type = NONE; 7285 phba->sli.slistat.sli_intr = 0; 7286 7287 return; 7288 } 7289 7290 /** 7291 * lpfc_unset_hba - Unset SLI3 hba device initialization 7292 * @phba: pointer to lpfc hba data structure. 7293 * 7294 * This routine is invoked to unset the HBA device initialization steps to 7295 * a device with SLI-3 interface spec. 7296 **/ 7297 static void 7298 lpfc_unset_hba(struct lpfc_hba *phba) 7299 { 7300 struct lpfc_vport *vport = phba->pport; 7301 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7302 7303 spin_lock_irq(shost->host_lock); 7304 vport->load_flag |= FC_UNLOADING; 7305 spin_unlock_irq(shost->host_lock); 7306 7307 lpfc_stop_hba_timers(phba); 7308 7309 phba->pport->work_port_events = 0; 7310 7311 lpfc_sli_hba_down(phba); 7312 7313 lpfc_sli_brdrestart(phba); 7314 7315 lpfc_sli_disable_intr(phba); 7316 7317 return; 7318 } 7319 7320 /** 7321 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7322 * @phba: pointer to lpfc hba data structure. 7323 * 7324 * This routine is invoked to unset the HBA device initialization steps to 7325 * a device with SLI-4 interface spec. 7326 **/ 7327 static void 7328 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7329 { 7330 struct lpfc_vport *vport = phba->pport; 7331 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7332 7333 spin_lock_irq(shost->host_lock); 7334 vport->load_flag |= FC_UNLOADING; 7335 spin_unlock_irq(shost->host_lock); 7336 7337 phba->pport->work_port_events = 0; 7338 7339 lpfc_sli4_hba_down(phba); 7340 7341 lpfc_sli4_disable_intr(phba); 7342 7343 return; 7344 } 7345 7346 /** 7347 * lpfc_sli4_hba_unset - Unset the fcoe hba 7348 * @phba: Pointer to HBA context object. 7349 * 7350 * This function is called in the SLI4 code path to reset the HBA's FCoE 7351 * function. The caller is not required to hold any lock. This routine 7352 * issues PCI function reset mailbox command to reset the FCoE function. 7353 * At the end of the function, it calls lpfc_hba_down_post function to 7354 * free any pending commands. 7355 **/ 7356 static void 7357 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7358 { 7359 int wait_cnt = 0; 7360 LPFC_MBOXQ_t *mboxq; 7361 7362 lpfc_stop_hba_timers(phba); 7363 phba->sli4_hba.intr_enable = 0; 7364 7365 /* 7366 * Gracefully wait out the potential current outstanding asynchronous 7367 * mailbox command. 7368 */ 7369 7370 /* First, block any pending async mailbox command from posted */ 7371 spin_lock_irq(&phba->hbalock); 7372 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7373 spin_unlock_irq(&phba->hbalock); 7374 /* Now, trying to wait it out if we can */ 7375 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7376 msleep(10); 7377 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7378 break; 7379 } 7380 /* Forcefully release the outstanding mailbox command if timed out */ 7381 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7382 spin_lock_irq(&phba->hbalock); 7383 mboxq = phba->sli.mbox_active; 7384 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7385 __lpfc_mbox_cmpl_put(phba, mboxq); 7386 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7387 phba->sli.mbox_active = NULL; 7388 spin_unlock_irq(&phba->hbalock); 7389 } 7390 7391 /* Tear down the queues in the HBA */ 7392 lpfc_sli4_queue_unset(phba); 7393 7394 /* Disable PCI subsystem interrupt */ 7395 lpfc_sli4_disable_intr(phba); 7396 7397 /* Stop kthread signal shall trigger work_done one more time */ 7398 kthread_stop(phba->worker_thread); 7399 7400 /* Stop the SLI4 device port */ 7401 phba->pport->work_port_events = 0; 7402 } 7403 7404 /** 7405 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7406 * @phba: Pointer to HBA context object. 7407 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7408 * 7409 * This function is called in the SLI4 code path to read the port's 7410 * sli4 capabilities. 7411 * 7412 * This function may be be called from any context that can block-wait 7413 * for the completion. The expectation is that this routine is called 7414 * typically from probe_one or from the online routine. 7415 **/ 7416 int 7417 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7418 { 7419 int rc; 7420 struct lpfc_mqe *mqe; 7421 struct lpfc_pc_sli4_params *sli4_params; 7422 uint32_t mbox_tmo; 7423 7424 rc = 0; 7425 mqe = &mboxq->u.mqe; 7426 7427 /* Read the port's SLI4 Parameters port capabilities */ 7428 lpfc_sli4_params(mboxq); 7429 if (!phba->sli4_hba.intr_enable) 7430 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7431 else { 7432 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7433 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7434 } 7435 7436 if (unlikely(rc)) 7437 return 1; 7438 7439 sli4_params = &phba->sli4_hba.pc_sli4_params; 7440 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7441 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7442 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7443 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7444 &mqe->un.sli4_params); 7445 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7446 &mqe->un.sli4_params); 7447 sli4_params->proto_types = mqe->un.sli4_params.word3; 7448 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7449 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7450 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7451 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7452 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7453 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7454 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7455 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7456 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7457 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7458 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7459 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7460 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7461 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7462 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7463 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7464 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7465 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7466 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7467 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7468 return rc; 7469 } 7470 7471 /** 7472 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7473 * @pdev: pointer to PCI device 7474 * @pid: pointer to PCI device identifier 7475 * 7476 * This routine is to be called to attach a device with SLI-3 interface spec 7477 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7478 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7479 * information of the device and driver to see if the driver state that it can 7480 * support this kind of device. If the match is successful, the driver core 7481 * invokes this routine. If this routine determines it can claim the HBA, it 7482 * does all the initialization that it needs to do to handle the HBA properly. 7483 * 7484 * Return code 7485 * 0 - driver can claim the device 7486 * negative value - driver can not claim the device 7487 **/ 7488 static int __devinit 7489 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7490 { 7491 struct lpfc_hba *phba; 7492 struct lpfc_vport *vport = NULL; 7493 struct Scsi_Host *shost = NULL; 7494 int error; 7495 uint32_t cfg_mode, intr_mode; 7496 7497 /* Allocate memory for HBA structure */ 7498 phba = lpfc_hba_alloc(pdev); 7499 if (!phba) 7500 return -ENOMEM; 7501 7502 /* Perform generic PCI device enabling operation */ 7503 error = lpfc_enable_pci_dev(phba); 7504 if (error) { 7505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7506 "1401 Failed to enable pci device.\n"); 7507 goto out_free_phba; 7508 } 7509 7510 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7511 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7512 if (error) 7513 goto out_disable_pci_dev; 7514 7515 /* Set up SLI-3 specific device PCI memory space */ 7516 error = lpfc_sli_pci_mem_setup(phba); 7517 if (error) { 7518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7519 "1402 Failed to set up pci memory space.\n"); 7520 goto out_disable_pci_dev; 7521 } 7522 7523 /* Set up phase-1 common device driver resources */ 7524 error = lpfc_setup_driver_resource_phase1(phba); 7525 if (error) { 7526 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7527 "1403 Failed to set up driver resource.\n"); 7528 goto out_unset_pci_mem_s3; 7529 } 7530 7531 /* Set up SLI-3 specific device driver resources */ 7532 error = lpfc_sli_driver_resource_setup(phba); 7533 if (error) { 7534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7535 "1404 Failed to set up driver resource.\n"); 7536 goto out_unset_pci_mem_s3; 7537 } 7538 7539 /* Initialize and populate the iocb list per host */ 7540 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 7541 if (error) { 7542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7543 "1405 Failed to initialize iocb list.\n"); 7544 goto out_unset_driver_resource_s3; 7545 } 7546 7547 /* Set up common device driver resources */ 7548 error = lpfc_setup_driver_resource_phase2(phba); 7549 if (error) { 7550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7551 "1406 Failed to set up driver resource.\n"); 7552 goto out_free_iocb_list; 7553 } 7554 7555 /* Create SCSI host to the physical port */ 7556 error = lpfc_create_shost(phba); 7557 if (error) { 7558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7559 "1407 Failed to create scsi host.\n"); 7560 goto out_unset_driver_resource; 7561 } 7562 7563 /* Configure sysfs attributes */ 7564 vport = phba->pport; 7565 error = lpfc_alloc_sysfs_attr(vport); 7566 if (error) { 7567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7568 "1476 Failed to allocate sysfs attr\n"); 7569 goto out_destroy_shost; 7570 } 7571 7572 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 7573 /* Now, trying to enable interrupt and bring up the device */ 7574 cfg_mode = phba->cfg_use_msi; 7575 while (true) { 7576 /* Put device to a known state before enabling interrupt */ 7577 lpfc_stop_port(phba); 7578 /* Configure and enable interrupt */ 7579 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 7580 if (intr_mode == LPFC_INTR_ERROR) { 7581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7582 "0431 Failed to enable interrupt.\n"); 7583 error = -ENODEV; 7584 goto out_free_sysfs_attr; 7585 } 7586 /* SLI-3 HBA setup */ 7587 if (lpfc_sli_hba_setup(phba)) { 7588 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7589 "1477 Failed to set up hba\n"); 7590 error = -ENODEV; 7591 goto out_remove_device; 7592 } 7593 7594 /* Wait 50ms for the interrupts of previous mailbox commands */ 7595 msleep(50); 7596 /* Check active interrupts on message signaled interrupts */ 7597 if (intr_mode == 0 || 7598 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 7599 /* Log the current active interrupt mode */ 7600 phba->intr_mode = intr_mode; 7601 lpfc_log_intr_mode(phba, intr_mode); 7602 break; 7603 } else { 7604 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7605 "0447 Configure interrupt mode (%d) " 7606 "failed active interrupt test.\n", 7607 intr_mode); 7608 /* Disable the current interrupt mode */ 7609 lpfc_sli_disable_intr(phba); 7610 /* Try next level of interrupt mode */ 7611 cfg_mode = --intr_mode; 7612 } 7613 } 7614 7615 /* Perform post initialization setup */ 7616 lpfc_post_init_setup(phba); 7617 7618 /* Check if there are static vports to be created. */ 7619 lpfc_create_static_vport(phba); 7620 7621 return 0; 7622 7623 out_remove_device: 7624 lpfc_unset_hba(phba); 7625 out_free_sysfs_attr: 7626 lpfc_free_sysfs_attr(vport); 7627 out_destroy_shost: 7628 lpfc_destroy_shost(phba); 7629 out_unset_driver_resource: 7630 lpfc_unset_driver_resource_phase2(phba); 7631 out_free_iocb_list: 7632 lpfc_free_iocb_list(phba); 7633 out_unset_driver_resource_s3: 7634 lpfc_sli_driver_resource_unset(phba); 7635 out_unset_pci_mem_s3: 7636 lpfc_sli_pci_mem_unset(phba); 7637 out_disable_pci_dev: 7638 lpfc_disable_pci_dev(phba); 7639 if (shost) 7640 scsi_host_put(shost); 7641 out_free_phba: 7642 lpfc_hba_free(phba); 7643 return error; 7644 } 7645 7646 /** 7647 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 7648 * @pdev: pointer to PCI device 7649 * 7650 * This routine is to be called to disattach a device with SLI-3 interface 7651 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7652 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7653 * device to be removed from the PCI subsystem properly. 7654 **/ 7655 static void __devexit 7656 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 7657 { 7658 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7659 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7660 struct lpfc_vport **vports; 7661 struct lpfc_hba *phba = vport->phba; 7662 int i; 7663 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 7664 7665 spin_lock_irq(&phba->hbalock); 7666 vport->load_flag |= FC_UNLOADING; 7667 spin_unlock_irq(&phba->hbalock); 7668 7669 lpfc_free_sysfs_attr(vport); 7670 7671 /* Release all the vports against this physical port */ 7672 vports = lpfc_create_vport_work_array(phba); 7673 if (vports != NULL) 7674 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7675 fc_vport_terminate(vports[i]->fc_vport); 7676 lpfc_destroy_vport_work_array(phba, vports); 7677 7678 /* Remove FC host and then SCSI host with the physical port */ 7679 fc_remove_host(shost); 7680 scsi_remove_host(shost); 7681 lpfc_cleanup(vport); 7682 7683 /* 7684 * Bring down the SLI Layer. This step disable all interrupts, 7685 * clears the rings, discards all mailbox commands, and resets 7686 * the HBA. 7687 */ 7688 7689 /* HBA interrupt will be diabled after this call */ 7690 lpfc_sli_hba_down(phba); 7691 /* Stop kthread signal shall trigger work_done one more time */ 7692 kthread_stop(phba->worker_thread); 7693 /* Final cleanup of txcmplq and reset the HBA */ 7694 lpfc_sli_brdrestart(phba); 7695 7696 lpfc_stop_hba_timers(phba); 7697 spin_lock_irq(&phba->hbalock); 7698 list_del_init(&vport->listentry); 7699 spin_unlock_irq(&phba->hbalock); 7700 7701 lpfc_debugfs_terminate(vport); 7702 7703 /* Disable interrupt */ 7704 lpfc_sli_disable_intr(phba); 7705 7706 pci_set_drvdata(pdev, NULL); 7707 scsi_host_put(shost); 7708 7709 /* 7710 * Call scsi_free before mem_free since scsi bufs are released to their 7711 * corresponding pools here. 7712 */ 7713 lpfc_scsi_free(phba); 7714 lpfc_mem_free_all(phba); 7715 7716 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7717 phba->hbqslimp.virt, phba->hbqslimp.phys); 7718 7719 /* Free resources associated with SLI2 interface */ 7720 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7721 phba->slim2p.virt, phba->slim2p.phys); 7722 7723 /* unmap adapter SLIM and Control Registers */ 7724 iounmap(phba->ctrl_regs_memmap_p); 7725 iounmap(phba->slim_memmap_p); 7726 7727 lpfc_hba_free(phba); 7728 7729 pci_release_selected_regions(pdev, bars); 7730 pci_disable_device(pdev); 7731 } 7732 7733 /** 7734 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 7735 * @pdev: pointer to PCI device 7736 * @msg: power management message 7737 * 7738 * This routine is to be called from the kernel's PCI subsystem to support 7739 * system Power Management (PM) to device with SLI-3 interface spec. When 7740 * PM invokes this method, it quiesces the device by stopping the driver's 7741 * worker thread for the device, turning off device's interrupt and DMA, 7742 * and bring the device offline. Note that as the driver implements the 7743 * minimum PM requirements to a power-aware driver's PM support for the 7744 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7745 * to the suspend() method call will be treated as SUSPEND and the driver will 7746 * fully reinitialize its device during resume() method call, the driver will 7747 * set device to PCI_D3hot state in PCI config space instead of setting it 7748 * according to the @msg provided by the PM. 7749 * 7750 * Return code 7751 * 0 - driver suspended the device 7752 * Error otherwise 7753 **/ 7754 static int 7755 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 7756 { 7757 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7758 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7759 7760 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7761 "0473 PCI device Power Management suspend.\n"); 7762 7763 /* Bring down the device */ 7764 lpfc_offline_prep(phba); 7765 lpfc_offline(phba); 7766 kthread_stop(phba->worker_thread); 7767 7768 /* Disable interrupt from device */ 7769 lpfc_sli_disable_intr(phba); 7770 7771 /* Save device state to PCI config space */ 7772 pci_save_state(pdev); 7773 pci_set_power_state(pdev, PCI_D3hot); 7774 7775 return 0; 7776 } 7777 7778 /** 7779 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7780 * @pdev: pointer to PCI device 7781 * 7782 * This routine is to be called from the kernel's PCI subsystem to support 7783 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7784 * invokes this method, it restores the device's PCI config space state and 7785 * fully reinitializes the device and brings it online. Note that as the 7786 * driver implements the minimum PM requirements to a power-aware driver's 7787 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7788 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7789 * driver will fully reinitialize its device during resume() method call, 7790 * the device will be set to PCI_D0 directly in PCI config space before 7791 * restoring the state. 7792 * 7793 * Return code 7794 * 0 - driver suspended the device 7795 * Error otherwise 7796 **/ 7797 static int 7798 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7799 { 7800 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7801 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7802 uint32_t intr_mode; 7803 int error; 7804 7805 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7806 "0452 PCI device Power Management resume.\n"); 7807 7808 /* Restore device state from PCI config space */ 7809 pci_set_power_state(pdev, PCI_D0); 7810 pci_restore_state(pdev); 7811 7812 /* 7813 * As the new kernel behavior of pci_restore_state() API call clears 7814 * device saved_state flag, need to save the restored state again. 7815 */ 7816 pci_save_state(pdev); 7817 7818 if (pdev->is_busmaster) 7819 pci_set_master(pdev); 7820 7821 /* Startup the kernel thread for this host adapter. */ 7822 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7823 "lpfc_worker_%d", phba->brd_no); 7824 if (IS_ERR(phba->worker_thread)) { 7825 error = PTR_ERR(phba->worker_thread); 7826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7827 "0434 PM resume failed to start worker " 7828 "thread: error=x%x.\n", error); 7829 return error; 7830 } 7831 7832 /* Configure and enable interrupt */ 7833 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7834 if (intr_mode == LPFC_INTR_ERROR) { 7835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7836 "0430 PM resume Failed to enable interrupt\n"); 7837 return -EIO; 7838 } else 7839 phba->intr_mode = intr_mode; 7840 7841 /* Restart HBA and bring it online */ 7842 lpfc_sli_brdrestart(phba); 7843 lpfc_online(phba); 7844 7845 /* Log the current active interrupt mode */ 7846 lpfc_log_intr_mode(phba, phba->intr_mode); 7847 7848 return 0; 7849 } 7850 7851 /** 7852 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 7853 * @phba: pointer to lpfc hba data structure. 7854 * 7855 * This routine is called to prepare the SLI3 device for PCI slot recover. It 7856 * aborts all the outstanding SCSI I/Os to the pci device. 7857 **/ 7858 static void 7859 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 7860 { 7861 struct lpfc_sli *psli = &phba->sli; 7862 struct lpfc_sli_ring *pring; 7863 7864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7865 "2723 PCI channel I/O abort preparing for recovery\n"); 7866 7867 /* 7868 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 7869 * and let the SCSI mid-layer to retry them to recover. 7870 */ 7871 pring = &psli->ring[psli->fcp_ring]; 7872 lpfc_sli_abort_iocb_ring(phba, pring); 7873 } 7874 7875 /** 7876 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 7877 * @phba: pointer to lpfc hba data structure. 7878 * 7879 * This routine is called to prepare the SLI3 device for PCI slot reset. It 7880 * disables the device interrupt and pci device, and aborts the internal FCP 7881 * pending I/Os. 7882 **/ 7883 static void 7884 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 7885 { 7886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7887 "2710 PCI channel disable preparing for reset\n"); 7888 7889 /* Block any management I/Os to the device */ 7890 lpfc_block_mgmt_io(phba); 7891 7892 /* Block all SCSI devices' I/Os on the host */ 7893 lpfc_scsi_dev_block(phba); 7894 7895 /* stop all timers */ 7896 lpfc_stop_hba_timers(phba); 7897 7898 /* Disable interrupt and pci device */ 7899 lpfc_sli_disable_intr(phba); 7900 pci_disable_device(phba->pcidev); 7901 7902 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 7903 lpfc_sli_flush_fcp_rings(phba); 7904 } 7905 7906 /** 7907 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 7908 * @phba: pointer to lpfc hba data structure. 7909 * 7910 * This routine is called to prepare the SLI3 device for PCI slot permanently 7911 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 7912 * pending I/Os. 7913 **/ 7914 static void 7915 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 7916 { 7917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7918 "2711 PCI channel permanent disable for failure\n"); 7919 /* Block all SCSI devices' I/Os on the host */ 7920 lpfc_scsi_dev_block(phba); 7921 7922 /* stop all timers */ 7923 lpfc_stop_hba_timers(phba); 7924 7925 /* Clean up all driver's outstanding SCSI I/Os */ 7926 lpfc_sli_flush_fcp_rings(phba); 7927 } 7928 7929 /** 7930 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7931 * @pdev: pointer to PCI device. 7932 * @state: the current PCI connection state. 7933 * 7934 * This routine is called from the PCI subsystem for I/O error handling to 7935 * device with SLI-3 interface spec. This function is called by the PCI 7936 * subsystem after a PCI bus error affecting this device has been detected. 7937 * When this function is invoked, it will need to stop all the I/Os and 7938 * interrupt(s) to the device. Once that is done, it will return 7939 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7940 * as desired. 7941 * 7942 * Return codes 7943 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 7944 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7945 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7946 **/ 7947 static pci_ers_result_t 7948 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7949 { 7950 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7951 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7952 7953 switch (state) { 7954 case pci_channel_io_normal: 7955 /* Non-fatal error, prepare for recovery */ 7956 lpfc_sli_prep_dev_for_recover(phba); 7957 return PCI_ERS_RESULT_CAN_RECOVER; 7958 case pci_channel_io_frozen: 7959 /* Fatal error, prepare for slot reset */ 7960 lpfc_sli_prep_dev_for_reset(phba); 7961 return PCI_ERS_RESULT_NEED_RESET; 7962 case pci_channel_io_perm_failure: 7963 /* Permanent failure, prepare for device down */ 7964 lpfc_sli_prep_dev_for_perm_failure(phba); 7965 return PCI_ERS_RESULT_DISCONNECT; 7966 default: 7967 /* Unknown state, prepare and request slot reset */ 7968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7969 "0472 Unknown PCI error state: x%x\n", state); 7970 lpfc_sli_prep_dev_for_reset(phba); 7971 return PCI_ERS_RESULT_NEED_RESET; 7972 } 7973 } 7974 7975 /** 7976 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7977 * @pdev: pointer to PCI device. 7978 * 7979 * This routine is called from the PCI subsystem for error handling to 7980 * device with SLI-3 interface spec. This is called after PCI bus has been 7981 * reset to restart the PCI card from scratch, as if from a cold-boot. 7982 * During the PCI subsystem error recovery, after driver returns 7983 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7984 * recovery and then call this routine before calling the .resume method 7985 * to recover the device. This function will initialize the HBA device, 7986 * enable the interrupt, but it will just put the HBA to offline state 7987 * without passing any I/O traffic. 7988 * 7989 * Return codes 7990 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7991 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7992 */ 7993 static pci_ers_result_t 7994 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7995 { 7996 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7997 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7998 struct lpfc_sli *psli = &phba->sli; 7999 uint32_t intr_mode; 8000 8001 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8002 if (pci_enable_device_mem(pdev)) { 8003 printk(KERN_ERR "lpfc: Cannot re-enable " 8004 "PCI device after reset.\n"); 8005 return PCI_ERS_RESULT_DISCONNECT; 8006 } 8007 8008 pci_restore_state(pdev); 8009 8010 /* 8011 * As the new kernel behavior of pci_restore_state() API call clears 8012 * device saved_state flag, need to save the restored state again. 8013 */ 8014 pci_save_state(pdev); 8015 8016 if (pdev->is_busmaster) 8017 pci_set_master(pdev); 8018 8019 spin_lock_irq(&phba->hbalock); 8020 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8021 spin_unlock_irq(&phba->hbalock); 8022 8023 /* Configure and enable interrupt */ 8024 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8025 if (intr_mode == LPFC_INTR_ERROR) { 8026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8027 "0427 Cannot re-enable interrupt after " 8028 "slot reset.\n"); 8029 return PCI_ERS_RESULT_DISCONNECT; 8030 } else 8031 phba->intr_mode = intr_mode; 8032 8033 /* Take device offline, it will perform cleanup */ 8034 lpfc_offline_prep(phba); 8035 lpfc_offline(phba); 8036 lpfc_sli_brdrestart(phba); 8037 8038 /* Log the current active interrupt mode */ 8039 lpfc_log_intr_mode(phba, phba->intr_mode); 8040 8041 return PCI_ERS_RESULT_RECOVERED; 8042 } 8043 8044 /** 8045 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8046 * @pdev: pointer to PCI device 8047 * 8048 * This routine is called from the PCI subsystem for error handling to device 8049 * with SLI-3 interface spec. It is called when kernel error recovery tells 8050 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8051 * error recovery. After this call, traffic can start to flow from this device 8052 * again. 8053 */ 8054 static void 8055 lpfc_io_resume_s3(struct pci_dev *pdev) 8056 { 8057 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8058 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8059 8060 /* Bring device online, it will be no-op for non-fatal error resume */ 8061 lpfc_online(phba); 8062 8063 /* Clean up Advanced Error Reporting (AER) if needed */ 8064 if (phba->hba_flag & HBA_AER_ENABLED) 8065 pci_cleanup_aer_uncorrect_error_status(pdev); 8066 } 8067 8068 /** 8069 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8070 * @phba: pointer to lpfc hba data structure. 8071 * 8072 * returns the number of ELS/CT IOCBs to reserve 8073 **/ 8074 int 8075 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8076 { 8077 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8078 8079 if (phba->sli_rev == LPFC_SLI_REV4) { 8080 if (max_xri <= 100) 8081 return 10; 8082 else if (max_xri <= 256) 8083 return 25; 8084 else if (max_xri <= 512) 8085 return 50; 8086 else if (max_xri <= 1024) 8087 return 100; 8088 else 8089 return 150; 8090 } else 8091 return 0; 8092 } 8093 8094 /** 8095 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8096 * @pdev: pointer to PCI device 8097 * @pid: pointer to PCI device identifier 8098 * 8099 * This routine is called from the kernel's PCI subsystem to device with 8100 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8101 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8102 * information of the device and driver to see if the driver state that it 8103 * can support this kind of device. If the match is successful, the driver 8104 * core invokes this routine. If this routine determines it can claim the HBA, 8105 * it does all the initialization that it needs to do to handle the HBA 8106 * properly. 8107 * 8108 * Return code 8109 * 0 - driver can claim the device 8110 * negative value - driver can not claim the device 8111 **/ 8112 static int __devinit 8113 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8114 { 8115 struct lpfc_hba *phba; 8116 struct lpfc_vport *vport = NULL; 8117 struct Scsi_Host *shost = NULL; 8118 int error; 8119 uint32_t cfg_mode, intr_mode; 8120 int mcnt; 8121 8122 /* Allocate memory for HBA structure */ 8123 phba = lpfc_hba_alloc(pdev); 8124 if (!phba) 8125 return -ENOMEM; 8126 8127 /* Perform generic PCI device enabling operation */ 8128 error = lpfc_enable_pci_dev(phba); 8129 if (error) { 8130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8131 "1409 Failed to enable pci device.\n"); 8132 goto out_free_phba; 8133 } 8134 8135 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8136 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8137 if (error) 8138 goto out_disable_pci_dev; 8139 8140 /* Set up SLI-4 specific device PCI memory space */ 8141 error = lpfc_sli4_pci_mem_setup(phba); 8142 if (error) { 8143 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8144 "1410 Failed to set up pci memory space.\n"); 8145 goto out_disable_pci_dev; 8146 } 8147 8148 /* Set up phase-1 common device driver resources */ 8149 error = lpfc_setup_driver_resource_phase1(phba); 8150 if (error) { 8151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8152 "1411 Failed to set up driver resource.\n"); 8153 goto out_unset_pci_mem_s4; 8154 } 8155 8156 /* Set up SLI-4 Specific device driver resources */ 8157 error = lpfc_sli4_driver_resource_setup(phba); 8158 if (error) { 8159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8160 "1412 Failed to set up driver resource.\n"); 8161 goto out_unset_pci_mem_s4; 8162 } 8163 8164 /* Initialize and populate the iocb list per host */ 8165 8166 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8167 "2821 initialize iocb list %d.\n", 8168 phba->cfg_iocb_cnt*1024); 8169 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8170 8171 if (error) { 8172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8173 "1413 Failed to initialize iocb list.\n"); 8174 goto out_unset_driver_resource_s4; 8175 } 8176 8177 /* Set up common device driver resources */ 8178 error = lpfc_setup_driver_resource_phase2(phba); 8179 if (error) { 8180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8181 "1414 Failed to set up driver resource.\n"); 8182 goto out_free_iocb_list; 8183 } 8184 8185 /* Create SCSI host to the physical port */ 8186 error = lpfc_create_shost(phba); 8187 if (error) { 8188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8189 "1415 Failed to create scsi host.\n"); 8190 goto out_unset_driver_resource; 8191 } 8192 8193 /* Configure sysfs attributes */ 8194 vport = phba->pport; 8195 error = lpfc_alloc_sysfs_attr(vport); 8196 if (error) { 8197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8198 "1416 Failed to allocate sysfs attr\n"); 8199 goto out_destroy_shost; 8200 } 8201 8202 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8203 /* Now, trying to enable interrupt and bring up the device */ 8204 cfg_mode = phba->cfg_use_msi; 8205 while (true) { 8206 /* Put device to a known state before enabling interrupt */ 8207 lpfc_stop_port(phba); 8208 /* Configure and enable interrupt */ 8209 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8210 if (intr_mode == LPFC_INTR_ERROR) { 8211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8212 "0426 Failed to enable interrupt.\n"); 8213 error = -ENODEV; 8214 goto out_free_sysfs_attr; 8215 } 8216 /* Default to single FCP EQ for non-MSI-X */ 8217 if (phba->intr_type != MSIX) 8218 phba->cfg_fcp_eq_count = 1; 8219 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8220 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8221 /* Set up SLI-4 HBA */ 8222 if (lpfc_sli4_hba_setup(phba)) { 8223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8224 "1421 Failed to set up hba\n"); 8225 error = -ENODEV; 8226 goto out_disable_intr; 8227 } 8228 8229 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8230 if (intr_mode != 0) 8231 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8232 LPFC_ACT_INTR_CNT); 8233 8234 /* Check active interrupts received only for MSI/MSI-X */ 8235 if (intr_mode == 0 || 8236 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8237 /* Log the current active interrupt mode */ 8238 phba->intr_mode = intr_mode; 8239 lpfc_log_intr_mode(phba, intr_mode); 8240 break; 8241 } 8242 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8243 "0451 Configure interrupt mode (%d) " 8244 "failed active interrupt test.\n", 8245 intr_mode); 8246 /* Unset the preivous SLI-4 HBA setup */ 8247 lpfc_sli4_unset_hba(phba); 8248 /* Try next level of interrupt mode */ 8249 cfg_mode = --intr_mode; 8250 } 8251 8252 /* Perform post initialization setup */ 8253 lpfc_post_init_setup(phba); 8254 8255 /* Check if there are static vports to be created. */ 8256 lpfc_create_static_vport(phba); 8257 8258 return 0; 8259 8260 out_disable_intr: 8261 lpfc_sli4_disable_intr(phba); 8262 out_free_sysfs_attr: 8263 lpfc_free_sysfs_attr(vport); 8264 out_destroy_shost: 8265 lpfc_destroy_shost(phba); 8266 out_unset_driver_resource: 8267 lpfc_unset_driver_resource_phase2(phba); 8268 out_free_iocb_list: 8269 lpfc_free_iocb_list(phba); 8270 out_unset_driver_resource_s4: 8271 lpfc_sli4_driver_resource_unset(phba); 8272 out_unset_pci_mem_s4: 8273 lpfc_sli4_pci_mem_unset(phba); 8274 out_disable_pci_dev: 8275 lpfc_disable_pci_dev(phba); 8276 if (shost) 8277 scsi_host_put(shost); 8278 out_free_phba: 8279 lpfc_hba_free(phba); 8280 return error; 8281 } 8282 8283 /** 8284 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8285 * @pdev: pointer to PCI device 8286 * 8287 * This routine is called from the kernel's PCI subsystem to device with 8288 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8289 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8290 * device to be removed from the PCI subsystem properly. 8291 **/ 8292 static void __devexit 8293 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8294 { 8295 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8296 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8297 struct lpfc_vport **vports; 8298 struct lpfc_hba *phba = vport->phba; 8299 int i; 8300 8301 /* Mark the device unloading flag */ 8302 spin_lock_irq(&phba->hbalock); 8303 vport->load_flag |= FC_UNLOADING; 8304 spin_unlock_irq(&phba->hbalock); 8305 8306 /* Free the HBA sysfs attributes */ 8307 lpfc_free_sysfs_attr(vport); 8308 8309 /* Release all the vports against this physical port */ 8310 vports = lpfc_create_vport_work_array(phba); 8311 if (vports != NULL) 8312 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8313 fc_vport_terminate(vports[i]->fc_vport); 8314 lpfc_destroy_vport_work_array(phba, vports); 8315 8316 /* Remove FC host and then SCSI host with the physical port */ 8317 fc_remove_host(shost); 8318 scsi_remove_host(shost); 8319 8320 /* Perform cleanup on the physical port */ 8321 lpfc_cleanup(vport); 8322 8323 /* 8324 * Bring down the SLI Layer. This step disables all interrupts, 8325 * clears the rings, discards all mailbox commands, and resets 8326 * the HBA FCoE function. 8327 */ 8328 lpfc_debugfs_terminate(vport); 8329 lpfc_sli4_hba_unset(phba); 8330 8331 spin_lock_irq(&phba->hbalock); 8332 list_del_init(&vport->listentry); 8333 spin_unlock_irq(&phba->hbalock); 8334 8335 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 8336 * buffers are released to their corresponding pools here. 8337 */ 8338 lpfc_scsi_free(phba); 8339 lpfc_sli4_driver_resource_unset(phba); 8340 8341 /* Unmap adapter Control and Doorbell registers */ 8342 lpfc_sli4_pci_mem_unset(phba); 8343 8344 /* Release PCI resources and disable device's PCI function */ 8345 scsi_host_put(shost); 8346 lpfc_disable_pci_dev(phba); 8347 8348 /* Finally, free the driver's device data structure */ 8349 lpfc_hba_free(phba); 8350 8351 return; 8352 } 8353 8354 /** 8355 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8356 * @pdev: pointer to PCI device 8357 * @msg: power management message 8358 * 8359 * This routine is called from the kernel's PCI subsystem to support system 8360 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8361 * this method, it quiesces the device by stopping the driver's worker 8362 * thread for the device, turning off device's interrupt and DMA, and bring 8363 * the device offline. Note that as the driver implements the minimum PM 8364 * requirements to a power-aware driver's PM support for suspend/resume -- all 8365 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8366 * method call will be treated as SUSPEND and the driver will fully 8367 * reinitialize its device during resume() method call, the driver will set 8368 * device to PCI_D3hot state in PCI config space instead of setting it 8369 * according to the @msg provided by the PM. 8370 * 8371 * Return code 8372 * 0 - driver suspended the device 8373 * Error otherwise 8374 **/ 8375 static int 8376 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8377 { 8378 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8379 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8380 8381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8382 "2843 PCI device Power Management suspend.\n"); 8383 8384 /* Bring down the device */ 8385 lpfc_offline_prep(phba); 8386 lpfc_offline(phba); 8387 kthread_stop(phba->worker_thread); 8388 8389 /* Disable interrupt from device */ 8390 lpfc_sli4_disable_intr(phba); 8391 8392 /* Save device state to PCI config space */ 8393 pci_save_state(pdev); 8394 pci_set_power_state(pdev, PCI_D3hot); 8395 8396 return 0; 8397 } 8398 8399 /** 8400 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8401 * @pdev: pointer to PCI device 8402 * 8403 * This routine is called from the kernel's PCI subsystem to support system 8404 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8405 * this method, it restores the device's PCI config space state and fully 8406 * reinitializes the device and brings it online. Note that as the driver 8407 * implements the minimum PM requirements to a power-aware driver's PM for 8408 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8409 * to the suspend() method call will be treated as SUSPEND and the driver 8410 * will fully reinitialize its device during resume() method call, the device 8411 * will be set to PCI_D0 directly in PCI config space before restoring the 8412 * state. 8413 * 8414 * Return code 8415 * 0 - driver suspended the device 8416 * Error otherwise 8417 **/ 8418 static int 8419 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8420 { 8421 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8422 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8423 uint32_t intr_mode; 8424 int error; 8425 8426 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8427 "0292 PCI device Power Management resume.\n"); 8428 8429 /* Restore device state from PCI config space */ 8430 pci_set_power_state(pdev, PCI_D0); 8431 pci_restore_state(pdev); 8432 8433 /* 8434 * As the new kernel behavior of pci_restore_state() API call clears 8435 * device saved_state flag, need to save the restored state again. 8436 */ 8437 pci_save_state(pdev); 8438 8439 if (pdev->is_busmaster) 8440 pci_set_master(pdev); 8441 8442 /* Startup the kernel thread for this host adapter. */ 8443 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8444 "lpfc_worker_%d", phba->brd_no); 8445 if (IS_ERR(phba->worker_thread)) { 8446 error = PTR_ERR(phba->worker_thread); 8447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8448 "0293 PM resume failed to start worker " 8449 "thread: error=x%x.\n", error); 8450 return error; 8451 } 8452 8453 /* Configure and enable interrupt */ 8454 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8455 if (intr_mode == LPFC_INTR_ERROR) { 8456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8457 "0294 PM resume Failed to enable interrupt\n"); 8458 return -EIO; 8459 } else 8460 phba->intr_mode = intr_mode; 8461 8462 /* Restart HBA and bring it online */ 8463 lpfc_sli_brdrestart(phba); 8464 lpfc_online(phba); 8465 8466 /* Log the current active interrupt mode */ 8467 lpfc_log_intr_mode(phba, phba->intr_mode); 8468 8469 return 0; 8470 } 8471 8472 /** 8473 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8474 * @phba: pointer to lpfc hba data structure. 8475 * 8476 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8477 * aborts all the outstanding SCSI I/Os to the pci device. 8478 **/ 8479 static void 8480 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8481 { 8482 struct lpfc_sli *psli = &phba->sli; 8483 struct lpfc_sli_ring *pring; 8484 8485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8486 "2828 PCI channel I/O abort preparing for recovery\n"); 8487 /* 8488 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8489 * and let the SCSI mid-layer to retry them to recover. 8490 */ 8491 pring = &psli->ring[psli->fcp_ring]; 8492 lpfc_sli_abort_iocb_ring(phba, pring); 8493 } 8494 8495 /** 8496 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8497 * @phba: pointer to lpfc hba data structure. 8498 * 8499 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8500 * disables the device interrupt and pci device, and aborts the internal FCP 8501 * pending I/Os. 8502 **/ 8503 static void 8504 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8505 { 8506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8507 "2826 PCI channel disable preparing for reset\n"); 8508 8509 /* Block any management I/Os to the device */ 8510 lpfc_block_mgmt_io(phba); 8511 8512 /* Block all SCSI devices' I/Os on the host */ 8513 lpfc_scsi_dev_block(phba); 8514 8515 /* stop all timers */ 8516 lpfc_stop_hba_timers(phba); 8517 8518 /* Disable interrupt and pci device */ 8519 lpfc_sli4_disable_intr(phba); 8520 pci_disable_device(phba->pcidev); 8521 8522 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8523 lpfc_sli_flush_fcp_rings(phba); 8524 } 8525 8526 /** 8527 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 8528 * @phba: pointer to lpfc hba data structure. 8529 * 8530 * This routine is called to prepare the SLI4 device for PCI slot permanently 8531 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8532 * pending I/Os. 8533 **/ 8534 static void 8535 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8536 { 8537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8538 "2827 PCI channel permanent disable for failure\n"); 8539 8540 /* Block all SCSI devices' I/Os on the host */ 8541 lpfc_scsi_dev_block(phba); 8542 8543 /* stop all timers */ 8544 lpfc_stop_hba_timers(phba); 8545 8546 /* Clean up all driver's outstanding SCSI I/Os */ 8547 lpfc_sli_flush_fcp_rings(phba); 8548 } 8549 8550 /** 8551 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 8552 * @pdev: pointer to PCI device. 8553 * @state: the current PCI connection state. 8554 * 8555 * This routine is called from the PCI subsystem for error handling to device 8556 * with SLI-4 interface spec. This function is called by the PCI subsystem 8557 * after a PCI bus error affecting this device has been detected. When this 8558 * function is invoked, it will need to stop all the I/Os and interrupt(s) 8559 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 8560 * for the PCI subsystem to perform proper recovery as desired. 8561 * 8562 * Return codes 8563 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8564 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8565 **/ 8566 static pci_ers_result_t 8567 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 8568 { 8569 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8570 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8571 8572 switch (state) { 8573 case pci_channel_io_normal: 8574 /* Non-fatal error, prepare for recovery */ 8575 lpfc_sli4_prep_dev_for_recover(phba); 8576 return PCI_ERS_RESULT_CAN_RECOVER; 8577 case pci_channel_io_frozen: 8578 /* Fatal error, prepare for slot reset */ 8579 lpfc_sli4_prep_dev_for_reset(phba); 8580 return PCI_ERS_RESULT_NEED_RESET; 8581 case pci_channel_io_perm_failure: 8582 /* Permanent failure, prepare for device down */ 8583 lpfc_sli4_prep_dev_for_perm_failure(phba); 8584 return PCI_ERS_RESULT_DISCONNECT; 8585 default: 8586 /* Unknown state, prepare and request slot reset */ 8587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8588 "2825 Unknown PCI error state: x%x\n", state); 8589 lpfc_sli4_prep_dev_for_reset(phba); 8590 return PCI_ERS_RESULT_NEED_RESET; 8591 } 8592 } 8593 8594 /** 8595 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 8596 * @pdev: pointer to PCI device. 8597 * 8598 * This routine is called from the PCI subsystem for error handling to device 8599 * with SLI-4 interface spec. It is called after PCI bus has been reset to 8600 * restart the PCI card from scratch, as if from a cold-boot. During the 8601 * PCI subsystem error recovery, after the driver returns 8602 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8603 * recovery and then call this routine before calling the .resume method to 8604 * recover the device. This function will initialize the HBA device, enable 8605 * the interrupt, but it will just put the HBA to offline state without 8606 * passing any I/O traffic. 8607 * 8608 * Return codes 8609 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8610 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8611 */ 8612 static pci_ers_result_t 8613 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 8614 { 8615 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8616 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8617 struct lpfc_sli *psli = &phba->sli; 8618 uint32_t intr_mode; 8619 8620 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8621 if (pci_enable_device_mem(pdev)) { 8622 printk(KERN_ERR "lpfc: Cannot re-enable " 8623 "PCI device after reset.\n"); 8624 return PCI_ERS_RESULT_DISCONNECT; 8625 } 8626 8627 pci_restore_state(pdev); 8628 if (pdev->is_busmaster) 8629 pci_set_master(pdev); 8630 8631 spin_lock_irq(&phba->hbalock); 8632 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8633 spin_unlock_irq(&phba->hbalock); 8634 8635 /* Configure and enable interrupt */ 8636 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8637 if (intr_mode == LPFC_INTR_ERROR) { 8638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8639 "2824 Cannot re-enable interrupt after " 8640 "slot reset.\n"); 8641 return PCI_ERS_RESULT_DISCONNECT; 8642 } else 8643 phba->intr_mode = intr_mode; 8644 8645 /* Log the current active interrupt mode */ 8646 lpfc_log_intr_mode(phba, phba->intr_mode); 8647 8648 return PCI_ERS_RESULT_RECOVERED; 8649 } 8650 8651 /** 8652 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 8653 * @pdev: pointer to PCI device 8654 * 8655 * This routine is called from the PCI subsystem for error handling to device 8656 * with SLI-4 interface spec. It is called when kernel error recovery tells 8657 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8658 * error recovery. After this call, traffic can start to flow from this device 8659 * again. 8660 **/ 8661 static void 8662 lpfc_io_resume_s4(struct pci_dev *pdev) 8663 { 8664 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8665 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8666 8667 /* 8668 * In case of slot reset, as function reset is performed through 8669 * mailbox command which needs DMA to be enabled, this operation 8670 * has to be moved to the io resume phase. Taking device offline 8671 * will perform the necessary cleanup. 8672 */ 8673 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 8674 /* Perform device reset */ 8675 lpfc_offline_prep(phba); 8676 lpfc_offline(phba); 8677 lpfc_sli_brdrestart(phba); 8678 /* Bring the device back online */ 8679 lpfc_online(phba); 8680 } 8681 8682 /* Clean up Advanced Error Reporting (AER) if needed */ 8683 if (phba->hba_flag & HBA_AER_ENABLED) 8684 pci_cleanup_aer_uncorrect_error_status(pdev); 8685 } 8686 8687 /** 8688 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 8689 * @pdev: pointer to PCI device 8690 * @pid: pointer to PCI device identifier 8691 * 8692 * This routine is to be registered to the kernel's PCI subsystem. When an 8693 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 8694 * at PCI device-specific information of the device and driver to see if the 8695 * driver state that it can support this kind of device. If the match is 8696 * successful, the driver core invokes this routine. This routine dispatches 8697 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 8698 * do all the initialization that it needs to do to handle the HBA device 8699 * properly. 8700 * 8701 * Return code 8702 * 0 - driver can claim the device 8703 * negative value - driver can not claim the device 8704 **/ 8705 static int __devinit 8706 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 8707 { 8708 int rc; 8709 struct lpfc_sli_intf intf; 8710 8711 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 8712 return -ENODEV; 8713 8714 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 8715 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 8716 rc = lpfc_pci_probe_one_s4(pdev, pid); 8717 else 8718 rc = lpfc_pci_probe_one_s3(pdev, pid); 8719 8720 return rc; 8721 } 8722 8723 /** 8724 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 8725 * @pdev: pointer to PCI device 8726 * 8727 * This routine is to be registered to the kernel's PCI subsystem. When an 8728 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 8729 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 8730 * remove routine, which will perform all the necessary cleanup for the 8731 * device to be removed from the PCI subsystem properly. 8732 **/ 8733 static void __devexit 8734 lpfc_pci_remove_one(struct pci_dev *pdev) 8735 { 8736 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8737 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8738 8739 switch (phba->pci_dev_grp) { 8740 case LPFC_PCI_DEV_LP: 8741 lpfc_pci_remove_one_s3(pdev); 8742 break; 8743 case LPFC_PCI_DEV_OC: 8744 lpfc_pci_remove_one_s4(pdev); 8745 break; 8746 default: 8747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8748 "1424 Invalid PCI device group: 0x%x\n", 8749 phba->pci_dev_grp); 8750 break; 8751 } 8752 return; 8753 } 8754 8755 /** 8756 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 8757 * @pdev: pointer to PCI device 8758 * @msg: power management message 8759 * 8760 * This routine is to be registered to the kernel's PCI subsystem to support 8761 * system Power Management (PM). When PM invokes this method, it dispatches 8762 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 8763 * suspend the device. 8764 * 8765 * Return code 8766 * 0 - driver suspended the device 8767 * Error otherwise 8768 **/ 8769 static int 8770 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 8771 { 8772 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8773 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8774 int rc = -ENODEV; 8775 8776 switch (phba->pci_dev_grp) { 8777 case LPFC_PCI_DEV_LP: 8778 rc = lpfc_pci_suspend_one_s3(pdev, msg); 8779 break; 8780 case LPFC_PCI_DEV_OC: 8781 rc = lpfc_pci_suspend_one_s4(pdev, msg); 8782 break; 8783 default: 8784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8785 "1425 Invalid PCI device group: 0x%x\n", 8786 phba->pci_dev_grp); 8787 break; 8788 } 8789 return rc; 8790 } 8791 8792 /** 8793 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 8794 * @pdev: pointer to PCI device 8795 * 8796 * This routine is to be registered to the kernel's PCI subsystem to support 8797 * system Power Management (PM). When PM invokes this method, it dispatches 8798 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 8799 * resume the device. 8800 * 8801 * Return code 8802 * 0 - driver suspended the device 8803 * Error otherwise 8804 **/ 8805 static int 8806 lpfc_pci_resume_one(struct pci_dev *pdev) 8807 { 8808 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8809 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8810 int rc = -ENODEV; 8811 8812 switch (phba->pci_dev_grp) { 8813 case LPFC_PCI_DEV_LP: 8814 rc = lpfc_pci_resume_one_s3(pdev); 8815 break; 8816 case LPFC_PCI_DEV_OC: 8817 rc = lpfc_pci_resume_one_s4(pdev); 8818 break; 8819 default: 8820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8821 "1426 Invalid PCI device group: 0x%x\n", 8822 phba->pci_dev_grp); 8823 break; 8824 } 8825 return rc; 8826 } 8827 8828 /** 8829 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 8830 * @pdev: pointer to PCI device. 8831 * @state: the current PCI connection state. 8832 * 8833 * This routine is registered to the PCI subsystem for error handling. This 8834 * function is called by the PCI subsystem after a PCI bus error affecting 8835 * this device has been detected. When this routine is invoked, it dispatches 8836 * the action to the proper SLI-3 or SLI-4 device error detected handling 8837 * routine, which will perform the proper error detected operation. 8838 * 8839 * Return codes 8840 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8841 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8842 **/ 8843 static pci_ers_result_t 8844 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 8845 { 8846 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8847 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8848 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8849 8850 switch (phba->pci_dev_grp) { 8851 case LPFC_PCI_DEV_LP: 8852 rc = lpfc_io_error_detected_s3(pdev, state); 8853 break; 8854 case LPFC_PCI_DEV_OC: 8855 rc = lpfc_io_error_detected_s4(pdev, state); 8856 break; 8857 default: 8858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8859 "1427 Invalid PCI device group: 0x%x\n", 8860 phba->pci_dev_grp); 8861 break; 8862 } 8863 return rc; 8864 } 8865 8866 /** 8867 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 8868 * @pdev: pointer to PCI device. 8869 * 8870 * This routine is registered to the PCI subsystem for error handling. This 8871 * function is called after PCI bus has been reset to restart the PCI card 8872 * from scratch, as if from a cold-boot. When this routine is invoked, it 8873 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 8874 * routine, which will perform the proper device reset. 8875 * 8876 * Return codes 8877 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8878 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8879 **/ 8880 static pci_ers_result_t 8881 lpfc_io_slot_reset(struct pci_dev *pdev) 8882 { 8883 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8884 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8885 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 8886 8887 switch (phba->pci_dev_grp) { 8888 case LPFC_PCI_DEV_LP: 8889 rc = lpfc_io_slot_reset_s3(pdev); 8890 break; 8891 case LPFC_PCI_DEV_OC: 8892 rc = lpfc_io_slot_reset_s4(pdev); 8893 break; 8894 default: 8895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8896 "1428 Invalid PCI device group: 0x%x\n", 8897 phba->pci_dev_grp); 8898 break; 8899 } 8900 return rc; 8901 } 8902 8903 /** 8904 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 8905 * @pdev: pointer to PCI device 8906 * 8907 * This routine is registered to the PCI subsystem for error handling. It 8908 * is called when kernel error recovery tells the lpfc driver that it is 8909 * OK to resume normal PCI operation after PCI bus error recovery. When 8910 * this routine is invoked, it dispatches the action to the proper SLI-3 8911 * or SLI-4 device io_resume routine, which will resume the device operation. 8912 **/ 8913 static void 8914 lpfc_io_resume(struct pci_dev *pdev) 8915 { 8916 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8917 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8918 8919 switch (phba->pci_dev_grp) { 8920 case LPFC_PCI_DEV_LP: 8921 lpfc_io_resume_s3(pdev); 8922 break; 8923 case LPFC_PCI_DEV_OC: 8924 lpfc_io_resume_s4(pdev); 8925 break; 8926 default: 8927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8928 "1429 Invalid PCI device group: 0x%x\n", 8929 phba->pci_dev_grp); 8930 break; 8931 } 8932 return; 8933 } 8934 8935 static struct pci_device_id lpfc_id_table[] = { 8936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 8937 PCI_ANY_ID, PCI_ANY_ID, }, 8938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 8939 PCI_ANY_ID, PCI_ANY_ID, }, 8940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 8941 PCI_ANY_ID, PCI_ANY_ID, }, 8942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 8943 PCI_ANY_ID, PCI_ANY_ID, }, 8944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 8945 PCI_ANY_ID, PCI_ANY_ID, }, 8946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 8947 PCI_ANY_ID, PCI_ANY_ID, }, 8948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 8949 PCI_ANY_ID, PCI_ANY_ID, }, 8950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 8951 PCI_ANY_ID, PCI_ANY_ID, }, 8952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 8953 PCI_ANY_ID, PCI_ANY_ID, }, 8954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 8955 PCI_ANY_ID, PCI_ANY_ID, }, 8956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 8957 PCI_ANY_ID, PCI_ANY_ID, }, 8958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 8959 PCI_ANY_ID, PCI_ANY_ID, }, 8960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 8961 PCI_ANY_ID, PCI_ANY_ID, }, 8962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 8963 PCI_ANY_ID, PCI_ANY_ID, }, 8964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 8965 PCI_ANY_ID, PCI_ANY_ID, }, 8966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 8967 PCI_ANY_ID, PCI_ANY_ID, }, 8968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 8969 PCI_ANY_ID, PCI_ANY_ID, }, 8970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 8971 PCI_ANY_ID, PCI_ANY_ID, }, 8972 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 8973 PCI_ANY_ID, PCI_ANY_ID, }, 8974 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 8975 PCI_ANY_ID, PCI_ANY_ID, }, 8976 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 8977 PCI_ANY_ID, PCI_ANY_ID, }, 8978 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 8979 PCI_ANY_ID, PCI_ANY_ID, }, 8980 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 8981 PCI_ANY_ID, PCI_ANY_ID, }, 8982 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 8983 PCI_ANY_ID, PCI_ANY_ID, }, 8984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 8985 PCI_ANY_ID, PCI_ANY_ID, }, 8986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 8987 PCI_ANY_ID, PCI_ANY_ID, }, 8988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 8989 PCI_ANY_ID, PCI_ANY_ID, }, 8990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 8991 PCI_ANY_ID, PCI_ANY_ID, }, 8992 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 8993 PCI_ANY_ID, PCI_ANY_ID, }, 8994 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 8995 PCI_ANY_ID, PCI_ANY_ID, }, 8996 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 8997 PCI_ANY_ID, PCI_ANY_ID, }, 8998 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 8999 PCI_ANY_ID, PCI_ANY_ID, }, 9000 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9001 PCI_ANY_ID, PCI_ANY_ID, }, 9002 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9003 PCI_ANY_ID, PCI_ANY_ID, }, 9004 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9005 PCI_ANY_ID, PCI_ANY_ID, }, 9006 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9007 PCI_ANY_ID, PCI_ANY_ID, }, 9008 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9009 PCI_ANY_ID, PCI_ANY_ID, }, 9010 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9011 PCI_ANY_ID, PCI_ANY_ID, }, 9012 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9013 PCI_ANY_ID, PCI_ANY_ID, }, 9014 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9015 PCI_ANY_ID, PCI_ANY_ID, }, 9016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9017 PCI_ANY_ID, PCI_ANY_ID, }, 9018 { 0 } 9019 }; 9020 9021 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9022 9023 static struct pci_error_handlers lpfc_err_handler = { 9024 .error_detected = lpfc_io_error_detected, 9025 .slot_reset = lpfc_io_slot_reset, 9026 .resume = lpfc_io_resume, 9027 }; 9028 9029 static struct pci_driver lpfc_driver = { 9030 .name = LPFC_DRIVER_NAME, 9031 .id_table = lpfc_id_table, 9032 .probe = lpfc_pci_probe_one, 9033 .remove = __devexit_p(lpfc_pci_remove_one), 9034 .suspend = lpfc_pci_suspend_one, 9035 .resume = lpfc_pci_resume_one, 9036 .err_handler = &lpfc_err_handler, 9037 }; 9038 9039 /** 9040 * lpfc_init - lpfc module initialization routine 9041 * 9042 * This routine is to be invoked when the lpfc module is loaded into the 9043 * kernel. The special kernel macro module_init() is used to indicate the 9044 * role of this routine to the kernel as lpfc module entry point. 9045 * 9046 * Return codes 9047 * 0 - successful 9048 * -ENOMEM - FC attach transport failed 9049 * all others - failed 9050 */ 9051 static int __init 9052 lpfc_init(void) 9053 { 9054 int error = 0; 9055 9056 printk(LPFC_MODULE_DESC "\n"); 9057 printk(LPFC_COPYRIGHT "\n"); 9058 9059 if (lpfc_enable_npiv) { 9060 lpfc_transport_functions.vport_create = lpfc_vport_create; 9061 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9062 } 9063 lpfc_transport_template = 9064 fc_attach_transport(&lpfc_transport_functions); 9065 if (lpfc_transport_template == NULL) 9066 return -ENOMEM; 9067 if (lpfc_enable_npiv) { 9068 lpfc_vport_transport_template = 9069 fc_attach_transport(&lpfc_vport_transport_functions); 9070 if (lpfc_vport_transport_template == NULL) { 9071 fc_release_transport(lpfc_transport_template); 9072 return -ENOMEM; 9073 } 9074 } 9075 error = pci_register_driver(&lpfc_driver); 9076 if (error) { 9077 fc_release_transport(lpfc_transport_template); 9078 if (lpfc_enable_npiv) 9079 fc_release_transport(lpfc_vport_transport_template); 9080 } 9081 9082 return error; 9083 } 9084 9085 /** 9086 * lpfc_exit - lpfc module removal routine 9087 * 9088 * This routine is invoked when the lpfc module is removed from the kernel. 9089 * The special kernel macro module_exit() is used to indicate the role of 9090 * this routine to the kernel as lpfc module exit point. 9091 */ 9092 static void __exit 9093 lpfc_exit(void) 9094 { 9095 pci_unregister_driver(&lpfc_driver); 9096 fc_release_transport(lpfc_transport_template); 9097 if (lpfc_enable_npiv) 9098 fc_release_transport(lpfc_vport_transport_template); 9099 if (_dump_buf_data) { 9100 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9101 "_dump_buf_data at 0x%p\n", 9102 (1L << _dump_buf_data_order), _dump_buf_data); 9103 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9104 } 9105 9106 if (_dump_buf_dif) { 9107 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9108 "_dump_buf_dif at 0x%p\n", 9109 (1L << _dump_buf_dif_order), _dump_buf_dif); 9110 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9111 } 9112 } 9113 9114 module_init(lpfc_init); 9115 module_exit(lpfc_exit); 9116 MODULE_LICENSE("GPL"); 9117 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9118 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9119 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9120