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