1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/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 > LPFC_USER_LINK_SPEED_16G) 450 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) 451 && !(phba->lmt & LMT_1Gb)) 452 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) 453 && !(phba->lmt & LMT_2Gb)) 454 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) 455 && !(phba->lmt & LMT_4Gb)) 456 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) 457 && !(phba->lmt & LMT_8Gb)) 458 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) 459 && !(phba->lmt & LMT_10Gb)) 460 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) 461 && !(phba->lmt & LMT_16Gb))) { 462 /* Reset link speed to auto */ 463 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 464 "1302 Invalid speed for this board: " 465 "Reset link speed to auto: x%x\n", 466 phba->cfg_link_speed); 467 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 468 } 469 470 phba->link_state = LPFC_LINK_DOWN; 471 472 /* Only process IOCBs on ELS ring till hba_state is READY */ 473 if (psli->ring[psli->extra_ring].cmdringaddr) 474 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 475 if (psli->ring[psli->fcp_ring].cmdringaddr) 476 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 477 if (psli->ring[psli->next_ring].cmdringaddr) 478 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 479 480 /* Post receive buffers for desired rings */ 481 if (phba->sli_rev != 3) 482 lpfc_post_rcv_buf(phba); 483 484 /* 485 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 486 */ 487 if (phba->intr_type == MSIX) { 488 rc = lpfc_config_msi(phba, pmb); 489 if (rc) { 490 mempool_free(pmb, phba->mbox_mem_pool); 491 return -EIO; 492 } 493 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 494 if (rc != MBX_SUCCESS) { 495 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 496 "0352 Config MSI mailbox command " 497 "failed, mbxCmd x%x, mbxStatus x%x\n", 498 pmb->u.mb.mbxCommand, 499 pmb->u.mb.mbxStatus); 500 mempool_free(pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 } 504 505 spin_lock_irq(&phba->hbalock); 506 /* Initialize ERATT handling flag */ 507 phba->hba_flag &= ~HBA_ERATT_HANDLED; 508 509 /* Enable appropriate host interrupts */ 510 if (lpfc_readl(phba->HCregaddr, &status)) { 511 spin_unlock_irq(&phba->hbalock); 512 return -EIO; 513 } 514 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 515 if (psli->num_rings > 0) 516 status |= HC_R0INT_ENA; 517 if (psli->num_rings > 1) 518 status |= HC_R1INT_ENA; 519 if (psli->num_rings > 2) 520 status |= HC_R2INT_ENA; 521 if (psli->num_rings > 3) 522 status |= HC_R3INT_ENA; 523 524 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 525 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 526 status &= ~(HC_R0INT_ENA); 527 528 writel(status, phba->HCregaddr); 529 readl(phba->HCregaddr); /* flush */ 530 spin_unlock_irq(&phba->hbalock); 531 532 /* Set up ring-0 (ELS) timer */ 533 timeout = phba->fc_ratov * 2; 534 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 535 /* Set up heart beat (HB) timer */ 536 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 537 phba->hb_outstanding = 0; 538 phba->last_completion_time = jiffies; 539 /* Set up error attention (ERATT) polling timer */ 540 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 541 542 if (phba->hba_flag & LINK_DISABLED) { 543 lpfc_printf_log(phba, 544 KERN_ERR, LOG_INIT, 545 "2598 Adapter Link is disabled.\n"); 546 lpfc_down_link(phba, pmb); 547 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 548 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 549 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 550 lpfc_printf_log(phba, 551 KERN_ERR, LOG_INIT, 552 "2599 Adapter failed to issue DOWN_LINK" 553 " mbox command rc 0x%x\n", rc); 554 555 mempool_free(pmb, phba->mbox_mem_pool); 556 return -EIO; 557 } 558 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 559 lpfc_init_link(phba, pmb, phba->cfg_topology, 560 phba->cfg_link_speed); 561 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 562 lpfc_set_loopback_flag(phba); 563 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 564 if (rc != MBX_SUCCESS) { 565 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 566 "0454 Adapter failed to init, mbxCmd x%x " 567 "INIT_LINK, mbxStatus x%x\n", 568 mb->mbxCommand, mb->mbxStatus); 569 570 /* Clear all interrupt enable conditions */ 571 writel(0, phba->HCregaddr); 572 readl(phba->HCregaddr); /* flush */ 573 /* Clear all pending interrupts */ 574 writel(0xffffffff, phba->HAregaddr); 575 readl(phba->HAregaddr); /* flush */ 576 577 phba->link_state = LPFC_HBA_ERROR; 578 if (rc != MBX_BUSY) 579 mempool_free(pmb, phba->mbox_mem_pool); 580 return -EIO; 581 } 582 } 583 /* MBOX buffer will be freed in mbox compl */ 584 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 585 if (!pmb) { 586 phba->link_state = LPFC_HBA_ERROR; 587 return -ENOMEM; 588 } 589 590 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 591 pmb->mbox_cmpl = lpfc_config_async_cmpl; 592 pmb->vport = phba->pport; 593 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 594 595 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 596 lpfc_printf_log(phba, 597 KERN_ERR, 598 LOG_INIT, 599 "0456 Adapter failed to issue " 600 "ASYNCEVT_ENABLE mbox status x%x\n", 601 rc); 602 mempool_free(pmb, phba->mbox_mem_pool); 603 } 604 605 /* Get Option rom version */ 606 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 607 if (!pmb) { 608 phba->link_state = LPFC_HBA_ERROR; 609 return -ENOMEM; 610 } 611 612 lpfc_dump_wakeup_param(phba, pmb); 613 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 614 pmb->vport = phba->pport; 615 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 616 617 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 619 "to get Option ROM version status x%x\n", rc); 620 mempool_free(pmb, phba->mbox_mem_pool); 621 } 622 623 return 0; 624 } 625 626 /** 627 * lpfc_hba_init_link - Initialize the FC link 628 * @phba: pointer to lpfc hba data structure. 629 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 630 * 631 * This routine will issue the INIT_LINK mailbox command call. 632 * It is available to other drivers through the lpfc_hba data 633 * structure for use as a delayed link up mechanism with the 634 * module parameter lpfc_suppress_link_up. 635 * 636 * Return code 637 * 0 - success 638 * Any other value - error 639 **/ 640 int 641 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 642 { 643 struct lpfc_vport *vport = phba->pport; 644 LPFC_MBOXQ_t *pmb; 645 MAILBOX_t *mb; 646 int rc; 647 648 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 649 if (!pmb) { 650 phba->link_state = LPFC_HBA_ERROR; 651 return -ENOMEM; 652 } 653 mb = &pmb->u.mb; 654 pmb->vport = vport; 655 656 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 657 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 658 lpfc_set_loopback_flag(phba); 659 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 660 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 662 "0498 Adapter failed to init, mbxCmd x%x " 663 "INIT_LINK, mbxStatus x%x\n", 664 mb->mbxCommand, mb->mbxStatus); 665 if (phba->sli_rev <= LPFC_SLI_REV3) { 666 /* Clear all interrupt enable conditions */ 667 writel(0, phba->HCregaddr); 668 readl(phba->HCregaddr); /* flush */ 669 /* Clear all pending interrupts */ 670 writel(0xffffffff, phba->HAregaddr); 671 readl(phba->HAregaddr); /* flush */ 672 } 673 phba->link_state = LPFC_HBA_ERROR; 674 if (rc != MBX_BUSY || flag == MBX_POLL) 675 mempool_free(pmb, phba->mbox_mem_pool); 676 return -EIO; 677 } 678 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 679 if (flag == MBX_POLL) 680 mempool_free(pmb, phba->mbox_mem_pool); 681 682 return 0; 683 } 684 685 /** 686 * lpfc_hba_down_link - this routine downs the FC link 687 * @phba: pointer to lpfc hba data structure. 688 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 689 * 690 * This routine will issue the DOWN_LINK mailbox command call. 691 * It is available to other drivers through the lpfc_hba data 692 * structure for use to stop the link. 693 * 694 * Return code 695 * 0 - success 696 * Any other value - error 697 **/ 698 int 699 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 700 { 701 LPFC_MBOXQ_t *pmb; 702 int rc; 703 704 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 705 if (!pmb) { 706 phba->link_state = LPFC_HBA_ERROR; 707 return -ENOMEM; 708 } 709 710 lpfc_printf_log(phba, 711 KERN_ERR, LOG_INIT, 712 "0491 Adapter Link is disabled.\n"); 713 lpfc_down_link(phba, pmb); 714 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 715 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 716 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 717 lpfc_printf_log(phba, 718 KERN_ERR, LOG_INIT, 719 "2522 Adapter failed to issue DOWN_LINK" 720 " mbox command rc 0x%x\n", rc); 721 722 mempool_free(pmb, phba->mbox_mem_pool); 723 return -EIO; 724 } 725 if (flag == MBX_POLL) 726 mempool_free(pmb, phba->mbox_mem_pool); 727 728 return 0; 729 } 730 731 /** 732 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 733 * @phba: pointer to lpfc HBA data structure. 734 * 735 * This routine will do LPFC uninitialization before the HBA is reset when 736 * bringing down the SLI Layer. 737 * 738 * Return codes 739 * 0 - success. 740 * Any other value - error. 741 **/ 742 int 743 lpfc_hba_down_prep(struct lpfc_hba *phba) 744 { 745 struct lpfc_vport **vports; 746 int i; 747 748 if (phba->sli_rev <= LPFC_SLI_REV3) { 749 /* Disable interrupts */ 750 writel(0, phba->HCregaddr); 751 readl(phba->HCregaddr); /* flush */ 752 } 753 754 if (phba->pport->load_flag & FC_UNLOADING) 755 lpfc_cleanup_discovery_resources(phba->pport); 756 else { 757 vports = lpfc_create_vport_work_array(phba); 758 if (vports != NULL) 759 for (i = 0; i <= phba->max_vports && 760 vports[i] != NULL; i++) 761 lpfc_cleanup_discovery_resources(vports[i]); 762 lpfc_destroy_vport_work_array(phba, vports); 763 } 764 return 0; 765 } 766 767 /** 768 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 769 * @phba: pointer to lpfc HBA data structure. 770 * 771 * This routine will do uninitialization after the HBA is reset when bring 772 * down the SLI Layer. 773 * 774 * Return codes 775 * 0 - success. 776 * Any other value - error. 777 **/ 778 static int 779 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 780 { 781 struct lpfc_sli *psli = &phba->sli; 782 struct lpfc_sli_ring *pring; 783 struct lpfc_dmabuf *mp, *next_mp; 784 LIST_HEAD(completions); 785 int i; 786 787 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 788 lpfc_sli_hbqbuf_free_all(phba); 789 else { 790 /* Cleanup preposted buffers on the ELS ring */ 791 pring = &psli->ring[LPFC_ELS_RING]; 792 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 793 list_del(&mp->list); 794 pring->postbufq_cnt--; 795 lpfc_mbuf_free(phba, mp->virt, mp->phys); 796 kfree(mp); 797 } 798 } 799 800 spin_lock_irq(&phba->hbalock); 801 for (i = 0; i < psli->num_rings; i++) { 802 pring = &psli->ring[i]; 803 804 /* At this point in time the HBA is either reset or DOA. Either 805 * way, nothing should be on txcmplq as it will NEVER complete. 806 */ 807 list_splice_init(&pring->txcmplq, &completions); 808 pring->txcmplq_cnt = 0; 809 spin_unlock_irq(&phba->hbalock); 810 811 /* Cancel all the IOCBs from the completions list */ 812 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 813 IOERR_SLI_ABORTED); 814 815 lpfc_sli_abort_iocb_ring(phba, pring); 816 spin_lock_irq(&phba->hbalock); 817 } 818 spin_unlock_irq(&phba->hbalock); 819 820 return 0; 821 } 822 823 /** 824 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 825 * @phba: pointer to lpfc HBA data structure. 826 * 827 * This routine will do uninitialization after the HBA is reset when bring 828 * down the SLI Layer. 829 * 830 * Return codes 831 * 0 - success. 832 * Any other value - error. 833 **/ 834 static int 835 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 836 { 837 struct lpfc_scsi_buf *psb, *psb_next; 838 LIST_HEAD(aborts); 839 int ret; 840 unsigned long iflag = 0; 841 struct lpfc_sglq *sglq_entry = NULL; 842 843 ret = lpfc_hba_down_post_s3(phba); 844 if (ret) 845 return ret; 846 /* At this point in time the HBA is either reset or DOA. Either 847 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 848 * on the lpfc_sgl_list so that it can either be freed if the 849 * driver is unloading or reposted if the driver is restarting 850 * the port. 851 */ 852 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 853 /* scsl_buf_list */ 854 /* abts_sgl_list_lock required because worker thread uses this 855 * list. 856 */ 857 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 858 list_for_each_entry(sglq_entry, 859 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 860 sglq_entry->state = SGL_FREED; 861 862 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 863 &phba->sli4_hba.lpfc_sgl_list); 864 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 865 /* abts_scsi_buf_list_lock required because worker thread uses this 866 * list. 867 */ 868 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 869 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 870 &aborts); 871 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 872 spin_unlock_irq(&phba->hbalock); 873 874 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 875 psb->pCmd = NULL; 876 psb->status = IOSTAT_SUCCESS; 877 } 878 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 879 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 880 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 881 return 0; 882 } 883 884 /** 885 * lpfc_hba_down_post - Wrapper func for hba down post routine 886 * @phba: pointer to lpfc HBA data structure. 887 * 888 * This routine wraps the actual SLI3 or SLI4 routine for performing 889 * uninitialization after the HBA is reset when bring down the SLI Layer. 890 * 891 * Return codes 892 * 0 - success. 893 * Any other value - error. 894 **/ 895 int 896 lpfc_hba_down_post(struct lpfc_hba *phba) 897 { 898 return (*phba->lpfc_hba_down_post)(phba); 899 } 900 901 /** 902 * lpfc_hb_timeout - The HBA-timer timeout handler 903 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 904 * 905 * This is the HBA-timer timeout handler registered to the lpfc driver. When 906 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 907 * work-port-events bitmap and the worker thread is notified. This timeout 908 * event will be used by the worker thread to invoke the actual timeout 909 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 910 * be performed in the timeout handler and the HBA timeout event bit shall 911 * be cleared by the worker thread after it has taken the event bitmap out. 912 **/ 913 static void 914 lpfc_hb_timeout(unsigned long ptr) 915 { 916 struct lpfc_hba *phba; 917 uint32_t tmo_posted; 918 unsigned long iflag; 919 920 phba = (struct lpfc_hba *)ptr; 921 922 /* Check for heart beat timeout conditions */ 923 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 924 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 925 if (!tmo_posted) 926 phba->pport->work_port_events |= WORKER_HB_TMO; 927 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 928 929 /* Tell the worker thread there is work to do */ 930 if (!tmo_posted) 931 lpfc_worker_wake_up(phba); 932 return; 933 } 934 935 /** 936 * lpfc_rrq_timeout - The RRQ-timer timeout handler 937 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 938 * 939 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 940 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 941 * work-port-events bitmap and the worker thread is notified. This timeout 942 * event will be used by the worker thread to invoke the actual timeout 943 * handler routine, lpfc_rrq_handler. Any periodical operations will 944 * be performed in the timeout handler and the RRQ timeout event bit shall 945 * be cleared by the worker thread after it has taken the event bitmap out. 946 **/ 947 static void 948 lpfc_rrq_timeout(unsigned long ptr) 949 { 950 struct lpfc_hba *phba; 951 unsigned long iflag; 952 953 phba = (struct lpfc_hba *)ptr; 954 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 955 phba->hba_flag |= HBA_RRQ_ACTIVE; 956 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 957 lpfc_worker_wake_up(phba); 958 } 959 960 /** 961 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 962 * @phba: pointer to lpfc hba data structure. 963 * @pmboxq: pointer to the driver internal queue element for mailbox command. 964 * 965 * This is the callback function to the lpfc heart-beat mailbox command. 966 * If configured, the lpfc driver issues the heart-beat mailbox command to 967 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 968 * heart-beat mailbox command is issued, the driver shall set up heart-beat 969 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 970 * heart-beat outstanding state. Once the mailbox command comes back and 971 * no error conditions detected, the heart-beat mailbox command timer is 972 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 973 * state is cleared for the next heart-beat. If the timer expired with the 974 * heart-beat outstanding state set, the driver will put the HBA offline. 975 **/ 976 static void 977 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 978 { 979 unsigned long drvr_flag; 980 981 spin_lock_irqsave(&phba->hbalock, drvr_flag); 982 phba->hb_outstanding = 0; 983 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 984 985 /* Check and reset heart-beat timer is necessary */ 986 mempool_free(pmboxq, phba->mbox_mem_pool); 987 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 988 !(phba->link_state == LPFC_HBA_ERROR) && 989 !(phba->pport->load_flag & FC_UNLOADING)) 990 mod_timer(&phba->hb_tmofunc, 991 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 992 return; 993 } 994 995 /** 996 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 997 * @phba: pointer to lpfc hba data structure. 998 * 999 * This is the actual HBA-timer timeout handler to be invoked by the worker 1000 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1001 * handler performs any periodic operations needed for the device. If such 1002 * periodic event has already been attended to either in the interrupt handler 1003 * or by processing slow-ring or fast-ring events within the HBA-timer 1004 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1005 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1006 * is configured and there is no heart-beat mailbox command outstanding, a 1007 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1008 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1009 * to offline. 1010 **/ 1011 void 1012 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1013 { 1014 struct lpfc_vport **vports; 1015 LPFC_MBOXQ_t *pmboxq; 1016 struct lpfc_dmabuf *buf_ptr; 1017 int retval, i; 1018 struct lpfc_sli *psli = &phba->sli; 1019 LIST_HEAD(completions); 1020 1021 vports = lpfc_create_vport_work_array(phba); 1022 if (vports != NULL) 1023 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1024 lpfc_rcv_seq_check_edtov(vports[i]); 1025 lpfc_destroy_vport_work_array(phba, vports); 1026 1027 if ((phba->link_state == LPFC_HBA_ERROR) || 1028 (phba->pport->load_flag & FC_UNLOADING) || 1029 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1030 return; 1031 1032 spin_lock_irq(&phba->pport->work_port_lock); 1033 1034 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1035 jiffies)) { 1036 spin_unlock_irq(&phba->pport->work_port_lock); 1037 if (!phba->hb_outstanding) 1038 mod_timer(&phba->hb_tmofunc, 1039 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1040 else 1041 mod_timer(&phba->hb_tmofunc, 1042 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1043 return; 1044 } 1045 spin_unlock_irq(&phba->pport->work_port_lock); 1046 1047 if (phba->elsbuf_cnt && 1048 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1049 spin_lock_irq(&phba->hbalock); 1050 list_splice_init(&phba->elsbuf, &completions); 1051 phba->elsbuf_cnt = 0; 1052 phba->elsbuf_prev_cnt = 0; 1053 spin_unlock_irq(&phba->hbalock); 1054 1055 while (!list_empty(&completions)) { 1056 list_remove_head(&completions, buf_ptr, 1057 struct lpfc_dmabuf, list); 1058 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1059 kfree(buf_ptr); 1060 } 1061 } 1062 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1063 1064 /* If there is no heart beat outstanding, issue a heartbeat command */ 1065 if (phba->cfg_enable_hba_heartbeat) { 1066 if (!phba->hb_outstanding) { 1067 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1068 (list_empty(&psli->mboxq))) { 1069 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1070 GFP_KERNEL); 1071 if (!pmboxq) { 1072 mod_timer(&phba->hb_tmofunc, 1073 jiffies + 1074 HZ * LPFC_HB_MBOX_INTERVAL); 1075 return; 1076 } 1077 1078 lpfc_heart_beat(phba, pmboxq); 1079 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1080 pmboxq->vport = phba->pport; 1081 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1082 MBX_NOWAIT); 1083 1084 if (retval != MBX_BUSY && 1085 retval != MBX_SUCCESS) { 1086 mempool_free(pmboxq, 1087 phba->mbox_mem_pool); 1088 mod_timer(&phba->hb_tmofunc, 1089 jiffies + 1090 HZ * LPFC_HB_MBOX_INTERVAL); 1091 return; 1092 } 1093 phba->skipped_hb = 0; 1094 phba->hb_outstanding = 1; 1095 } else if (time_before_eq(phba->last_completion_time, 1096 phba->skipped_hb)) { 1097 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1098 "2857 Last completion time not " 1099 " updated in %d ms\n", 1100 jiffies_to_msecs(jiffies 1101 - phba->last_completion_time)); 1102 } else 1103 phba->skipped_hb = jiffies; 1104 1105 mod_timer(&phba->hb_tmofunc, 1106 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1107 return; 1108 } else { 1109 /* 1110 * If heart beat timeout called with hb_outstanding set 1111 * we need to give the hb mailbox cmd a chance to 1112 * complete or TMO. 1113 */ 1114 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1115 "0459 Adapter heartbeat still out" 1116 "standing:last compl time was %d ms.\n", 1117 jiffies_to_msecs(jiffies 1118 - phba->last_completion_time)); 1119 mod_timer(&phba->hb_tmofunc, 1120 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1121 } 1122 } 1123 } 1124 1125 /** 1126 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1127 * @phba: pointer to lpfc hba data structure. 1128 * 1129 * This routine is called to bring the HBA offline when HBA hardware error 1130 * other than Port Error 6 has been detected. 1131 **/ 1132 static void 1133 lpfc_offline_eratt(struct lpfc_hba *phba) 1134 { 1135 struct lpfc_sli *psli = &phba->sli; 1136 1137 spin_lock_irq(&phba->hbalock); 1138 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1139 spin_unlock_irq(&phba->hbalock); 1140 lpfc_offline_prep(phba); 1141 1142 lpfc_offline(phba); 1143 lpfc_reset_barrier(phba); 1144 spin_lock_irq(&phba->hbalock); 1145 lpfc_sli_brdreset(phba); 1146 spin_unlock_irq(&phba->hbalock); 1147 lpfc_hba_down_post(phba); 1148 lpfc_sli_brdready(phba, HS_MBRDY); 1149 lpfc_unblock_mgmt_io(phba); 1150 phba->link_state = LPFC_HBA_ERROR; 1151 return; 1152 } 1153 1154 /** 1155 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1156 * @phba: pointer to lpfc hba data structure. 1157 * 1158 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1159 * other than Port Error 6 has been detected. 1160 **/ 1161 static void 1162 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1163 { 1164 lpfc_offline_prep(phba); 1165 lpfc_offline(phba); 1166 lpfc_sli4_brdreset(phba); 1167 lpfc_hba_down_post(phba); 1168 lpfc_sli4_post_status_check(phba); 1169 lpfc_unblock_mgmt_io(phba); 1170 phba->link_state = LPFC_HBA_ERROR; 1171 } 1172 1173 /** 1174 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1175 * @phba: pointer to lpfc hba data structure. 1176 * 1177 * This routine is invoked to handle the deferred HBA hardware error 1178 * conditions. This type of error is indicated by HBA by setting ER1 1179 * and another ER bit in the host status register. The driver will 1180 * wait until the ER1 bit clears before handling the error condition. 1181 **/ 1182 static void 1183 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1184 { 1185 uint32_t old_host_status = phba->work_hs; 1186 struct lpfc_sli_ring *pring; 1187 struct lpfc_sli *psli = &phba->sli; 1188 1189 /* If the pci channel is offline, ignore possible errors, 1190 * since we cannot communicate with the pci card anyway. 1191 */ 1192 if (pci_channel_offline(phba->pcidev)) { 1193 spin_lock_irq(&phba->hbalock); 1194 phba->hba_flag &= ~DEFER_ERATT; 1195 spin_unlock_irq(&phba->hbalock); 1196 return; 1197 } 1198 1199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1200 "0479 Deferred Adapter Hardware Error " 1201 "Data: x%x x%x x%x\n", 1202 phba->work_hs, 1203 phba->work_status[0], phba->work_status[1]); 1204 1205 spin_lock_irq(&phba->hbalock); 1206 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1207 spin_unlock_irq(&phba->hbalock); 1208 1209 1210 /* 1211 * Firmware stops when it triggred erratt. That could cause the I/Os 1212 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1213 * SCSI layer retry it after re-establishing link. 1214 */ 1215 pring = &psli->ring[psli->fcp_ring]; 1216 lpfc_sli_abort_iocb_ring(phba, pring); 1217 1218 /* 1219 * There was a firmware error. Take the hba offline and then 1220 * attempt to restart it. 1221 */ 1222 lpfc_offline_prep(phba); 1223 lpfc_offline(phba); 1224 1225 /* Wait for the ER1 bit to clear.*/ 1226 while (phba->work_hs & HS_FFER1) { 1227 msleep(100); 1228 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1229 phba->work_hs = UNPLUG_ERR ; 1230 break; 1231 } 1232 /* If driver is unloading let the worker thread continue */ 1233 if (phba->pport->load_flag & FC_UNLOADING) { 1234 phba->work_hs = 0; 1235 break; 1236 } 1237 } 1238 1239 /* 1240 * This is to ptrotect against a race condition in which 1241 * first write to the host attention register clear the 1242 * host status register. 1243 */ 1244 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1245 phba->work_hs = old_host_status & ~HS_FFER1; 1246 1247 spin_lock_irq(&phba->hbalock); 1248 phba->hba_flag &= ~DEFER_ERATT; 1249 spin_unlock_irq(&phba->hbalock); 1250 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1251 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1252 } 1253 1254 static void 1255 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1256 { 1257 struct lpfc_board_event_header board_event; 1258 struct Scsi_Host *shost; 1259 1260 board_event.event_type = FC_REG_BOARD_EVENT; 1261 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1262 shost = lpfc_shost_from_vport(phba->pport); 1263 fc_host_post_vendor_event(shost, fc_get_event_number(), 1264 sizeof(board_event), 1265 (char *) &board_event, 1266 LPFC_NL_VENDOR_ID); 1267 } 1268 1269 /** 1270 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1271 * @phba: pointer to lpfc hba data structure. 1272 * 1273 * This routine is invoked to handle the following HBA hardware error 1274 * conditions: 1275 * 1 - HBA error attention interrupt 1276 * 2 - DMA ring index out of range 1277 * 3 - Mailbox command came back as unknown 1278 **/ 1279 static void 1280 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1281 { 1282 struct lpfc_vport *vport = phba->pport; 1283 struct lpfc_sli *psli = &phba->sli; 1284 struct lpfc_sli_ring *pring; 1285 uint32_t event_data; 1286 unsigned long temperature; 1287 struct temp_event temp_event_data; 1288 struct Scsi_Host *shost; 1289 1290 /* If the pci channel is offline, ignore possible errors, 1291 * since we cannot communicate with the pci card anyway. 1292 */ 1293 if (pci_channel_offline(phba->pcidev)) { 1294 spin_lock_irq(&phba->hbalock); 1295 phba->hba_flag &= ~DEFER_ERATT; 1296 spin_unlock_irq(&phba->hbalock); 1297 return; 1298 } 1299 1300 /* If resets are disabled then leave the HBA alone and return */ 1301 if (!phba->cfg_enable_hba_reset) 1302 return; 1303 1304 /* Send an internal error event to mgmt application */ 1305 lpfc_board_errevt_to_mgmt(phba); 1306 1307 if (phba->hba_flag & DEFER_ERATT) 1308 lpfc_handle_deferred_eratt(phba); 1309 1310 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1311 if (phba->work_hs & HS_FFER6) 1312 /* Re-establishing Link */ 1313 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1314 "1301 Re-establishing Link " 1315 "Data: x%x x%x x%x\n", 1316 phba->work_hs, phba->work_status[0], 1317 phba->work_status[1]); 1318 if (phba->work_hs & HS_FFER8) 1319 /* Device Zeroization */ 1320 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1321 "2861 Host Authentication device " 1322 "zeroization Data:x%x x%x x%x\n", 1323 phba->work_hs, phba->work_status[0], 1324 phba->work_status[1]); 1325 1326 spin_lock_irq(&phba->hbalock); 1327 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1328 spin_unlock_irq(&phba->hbalock); 1329 1330 /* 1331 * Firmware stops when it triggled erratt with HS_FFER6. 1332 * That could cause the I/Os dropped by the firmware. 1333 * Error iocb (I/O) on txcmplq and let the SCSI layer 1334 * retry it after re-establishing link. 1335 */ 1336 pring = &psli->ring[psli->fcp_ring]; 1337 lpfc_sli_abort_iocb_ring(phba, pring); 1338 1339 /* 1340 * There was a firmware error. Take the hba offline and then 1341 * attempt to restart it. 1342 */ 1343 lpfc_offline_prep(phba); 1344 lpfc_offline(phba); 1345 lpfc_sli_brdrestart(phba); 1346 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1347 lpfc_unblock_mgmt_io(phba); 1348 return; 1349 } 1350 lpfc_unblock_mgmt_io(phba); 1351 } else if (phba->work_hs & HS_CRIT_TEMP) { 1352 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1353 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1354 temp_event_data.event_code = LPFC_CRIT_TEMP; 1355 temp_event_data.data = (uint32_t)temperature; 1356 1357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1358 "0406 Adapter maximum temperature exceeded " 1359 "(%ld), taking this port offline " 1360 "Data: x%x x%x x%x\n", 1361 temperature, phba->work_hs, 1362 phba->work_status[0], phba->work_status[1]); 1363 1364 shost = lpfc_shost_from_vport(phba->pport); 1365 fc_host_post_vendor_event(shost, fc_get_event_number(), 1366 sizeof(temp_event_data), 1367 (char *) &temp_event_data, 1368 SCSI_NL_VID_TYPE_PCI 1369 | PCI_VENDOR_ID_EMULEX); 1370 1371 spin_lock_irq(&phba->hbalock); 1372 phba->over_temp_state = HBA_OVER_TEMP; 1373 spin_unlock_irq(&phba->hbalock); 1374 lpfc_offline_eratt(phba); 1375 1376 } else { 1377 /* The if clause above forces this code path when the status 1378 * failure is a value other than FFER6. Do not call the offline 1379 * twice. This is the adapter hardware error path. 1380 */ 1381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1382 "0457 Adapter Hardware Error " 1383 "Data: x%x x%x x%x\n", 1384 phba->work_hs, 1385 phba->work_status[0], phba->work_status[1]); 1386 1387 event_data = FC_REG_DUMP_EVENT; 1388 shost = lpfc_shost_from_vport(vport); 1389 fc_host_post_vendor_event(shost, fc_get_event_number(), 1390 sizeof(event_data), (char *) &event_data, 1391 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1392 1393 lpfc_offline_eratt(phba); 1394 } 1395 return; 1396 } 1397 1398 /** 1399 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1400 * @phba: pointer to lpfc hba data structure. 1401 * 1402 * This routine is invoked to handle the SLI4 HBA hardware error attention 1403 * conditions. 1404 **/ 1405 static void 1406 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1407 { 1408 struct lpfc_vport *vport = phba->pport; 1409 uint32_t event_data; 1410 struct Scsi_Host *shost; 1411 uint32_t if_type; 1412 struct lpfc_register portstat_reg; 1413 1414 /* If the pci channel is offline, ignore possible errors, since 1415 * we cannot communicate with the pci card anyway. 1416 */ 1417 if (pci_channel_offline(phba->pcidev)) 1418 return; 1419 /* If resets are disabled then leave the HBA alone and return */ 1420 if (!phba->cfg_enable_hba_reset) 1421 return; 1422 1423 /* Send an internal error event to mgmt application */ 1424 lpfc_board_errevt_to_mgmt(phba); 1425 1426 /* For now, the actual action for SLI4 device handling is not 1427 * specified yet, just treated it as adaptor hardware failure 1428 */ 1429 event_data = FC_REG_DUMP_EVENT; 1430 shost = lpfc_shost_from_vport(vport); 1431 fc_host_post_vendor_event(shost, fc_get_event_number(), 1432 sizeof(event_data), (char *) &event_data, 1433 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1434 1435 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1436 switch (if_type) { 1437 case LPFC_SLI_INTF_IF_TYPE_0: 1438 lpfc_sli4_offline_eratt(phba); 1439 break; 1440 case LPFC_SLI_INTF_IF_TYPE_2: 1441 portstat_reg.word0 = 1442 readl(phba->sli4_hba.u.if_type2.STATUSregaddr); 1443 1444 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1445 /* TODO: Register for Overtemp async events. */ 1446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1447 "2889 Port Overtemperature event, " 1448 "taking port\n"); 1449 spin_lock_irq(&phba->hbalock); 1450 phba->over_temp_state = HBA_OVER_TEMP; 1451 spin_unlock_irq(&phba->hbalock); 1452 lpfc_sli4_offline_eratt(phba); 1453 return; 1454 } 1455 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) { 1456 /* 1457 * TODO: Attempt port recovery via a port reset. 1458 * When fully implemented, the driver should 1459 * attempt to recover the port here and return. 1460 * For now, log an error and take the port offline. 1461 */ 1462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1463 "2887 Port Error: Attempting " 1464 "Port Recovery\n"); 1465 } 1466 lpfc_sli4_offline_eratt(phba); 1467 break; 1468 case LPFC_SLI_INTF_IF_TYPE_1: 1469 default: 1470 break; 1471 } 1472 } 1473 1474 /** 1475 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1476 * @phba: pointer to lpfc HBA data structure. 1477 * 1478 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1479 * routine from the API jump table function pointer from the lpfc_hba struct. 1480 * 1481 * Return codes 1482 * 0 - success. 1483 * Any other value - error. 1484 **/ 1485 void 1486 lpfc_handle_eratt(struct lpfc_hba *phba) 1487 { 1488 (*phba->lpfc_handle_eratt)(phba); 1489 } 1490 1491 /** 1492 * lpfc_handle_latt - The HBA link event handler 1493 * @phba: pointer to lpfc hba data structure. 1494 * 1495 * This routine is invoked from the worker thread to handle a HBA host 1496 * attention link event. 1497 **/ 1498 void 1499 lpfc_handle_latt(struct lpfc_hba *phba) 1500 { 1501 struct lpfc_vport *vport = phba->pport; 1502 struct lpfc_sli *psli = &phba->sli; 1503 LPFC_MBOXQ_t *pmb; 1504 volatile uint32_t control; 1505 struct lpfc_dmabuf *mp; 1506 int rc = 0; 1507 1508 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1509 if (!pmb) { 1510 rc = 1; 1511 goto lpfc_handle_latt_err_exit; 1512 } 1513 1514 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1515 if (!mp) { 1516 rc = 2; 1517 goto lpfc_handle_latt_free_pmb; 1518 } 1519 1520 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1521 if (!mp->virt) { 1522 rc = 3; 1523 goto lpfc_handle_latt_free_mp; 1524 } 1525 1526 /* Cleanup any outstanding ELS commands */ 1527 lpfc_els_flush_all_cmd(phba); 1528 1529 psli->slistat.link_event++; 1530 lpfc_read_topology(phba, pmb, mp); 1531 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1532 pmb->vport = vport; 1533 /* Block ELS IOCBs until we have processed this mbox command */ 1534 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1535 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1536 if (rc == MBX_NOT_FINISHED) { 1537 rc = 4; 1538 goto lpfc_handle_latt_free_mbuf; 1539 } 1540 1541 /* Clear Link Attention in HA REG */ 1542 spin_lock_irq(&phba->hbalock); 1543 writel(HA_LATT, phba->HAregaddr); 1544 readl(phba->HAregaddr); /* flush */ 1545 spin_unlock_irq(&phba->hbalock); 1546 1547 return; 1548 1549 lpfc_handle_latt_free_mbuf: 1550 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1551 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1552 lpfc_handle_latt_free_mp: 1553 kfree(mp); 1554 lpfc_handle_latt_free_pmb: 1555 mempool_free(pmb, phba->mbox_mem_pool); 1556 lpfc_handle_latt_err_exit: 1557 /* Enable Link attention interrupts */ 1558 spin_lock_irq(&phba->hbalock); 1559 psli->sli_flag |= LPFC_PROCESS_LA; 1560 control = readl(phba->HCregaddr); 1561 control |= HC_LAINT_ENA; 1562 writel(control, phba->HCregaddr); 1563 readl(phba->HCregaddr); /* flush */ 1564 1565 /* Clear Link Attention in HA REG */ 1566 writel(HA_LATT, phba->HAregaddr); 1567 readl(phba->HAregaddr); /* flush */ 1568 spin_unlock_irq(&phba->hbalock); 1569 lpfc_linkdown(phba); 1570 phba->link_state = LPFC_HBA_ERROR; 1571 1572 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1573 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1574 1575 return; 1576 } 1577 1578 /** 1579 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1580 * @phba: pointer to lpfc hba data structure. 1581 * @vpd: pointer to the vital product data. 1582 * @len: length of the vital product data in bytes. 1583 * 1584 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1585 * an array of characters. In this routine, the ModelName, ProgramType, and 1586 * ModelDesc, etc. fields of the phba data structure will be populated. 1587 * 1588 * Return codes 1589 * 0 - pointer to the VPD passed in is NULL 1590 * 1 - success 1591 **/ 1592 int 1593 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1594 { 1595 uint8_t lenlo, lenhi; 1596 int Length; 1597 int i, j; 1598 int finished = 0; 1599 int index = 0; 1600 1601 if (!vpd) 1602 return 0; 1603 1604 /* Vital Product */ 1605 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1606 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1607 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1608 (uint32_t) vpd[3]); 1609 while (!finished && (index < (len - 4))) { 1610 switch (vpd[index]) { 1611 case 0x82: 1612 case 0x91: 1613 index += 1; 1614 lenlo = vpd[index]; 1615 index += 1; 1616 lenhi = vpd[index]; 1617 index += 1; 1618 i = ((((unsigned short)lenhi) << 8) + lenlo); 1619 index += i; 1620 break; 1621 case 0x90: 1622 index += 1; 1623 lenlo = vpd[index]; 1624 index += 1; 1625 lenhi = vpd[index]; 1626 index += 1; 1627 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1628 if (Length > len - index) 1629 Length = len - index; 1630 while (Length > 0) { 1631 /* Look for Serial Number */ 1632 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1633 index += 2; 1634 i = vpd[index]; 1635 index += 1; 1636 j = 0; 1637 Length -= (3+i); 1638 while(i--) { 1639 phba->SerialNumber[j++] = vpd[index++]; 1640 if (j == 31) 1641 break; 1642 } 1643 phba->SerialNumber[j] = 0; 1644 continue; 1645 } 1646 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1647 phba->vpd_flag |= VPD_MODEL_DESC; 1648 index += 2; 1649 i = vpd[index]; 1650 index += 1; 1651 j = 0; 1652 Length -= (3+i); 1653 while(i--) { 1654 phba->ModelDesc[j++] = vpd[index++]; 1655 if (j == 255) 1656 break; 1657 } 1658 phba->ModelDesc[j] = 0; 1659 continue; 1660 } 1661 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1662 phba->vpd_flag |= VPD_MODEL_NAME; 1663 index += 2; 1664 i = vpd[index]; 1665 index += 1; 1666 j = 0; 1667 Length -= (3+i); 1668 while(i--) { 1669 phba->ModelName[j++] = vpd[index++]; 1670 if (j == 79) 1671 break; 1672 } 1673 phba->ModelName[j] = 0; 1674 continue; 1675 } 1676 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1677 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1678 index += 2; 1679 i = vpd[index]; 1680 index += 1; 1681 j = 0; 1682 Length -= (3+i); 1683 while(i--) { 1684 phba->ProgramType[j++] = vpd[index++]; 1685 if (j == 255) 1686 break; 1687 } 1688 phba->ProgramType[j] = 0; 1689 continue; 1690 } 1691 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1692 phba->vpd_flag |= VPD_PORT; 1693 index += 2; 1694 i = vpd[index]; 1695 index += 1; 1696 j = 0; 1697 Length -= (3+i); 1698 while(i--) { 1699 phba->Port[j++] = vpd[index++]; 1700 if (j == 19) 1701 break; 1702 } 1703 phba->Port[j] = 0; 1704 continue; 1705 } 1706 else { 1707 index += 2; 1708 i = vpd[index]; 1709 index += 1; 1710 index += i; 1711 Length -= (3 + i); 1712 } 1713 } 1714 finished = 0; 1715 break; 1716 case 0x78: 1717 finished = 1; 1718 break; 1719 default: 1720 index ++; 1721 break; 1722 } 1723 } 1724 1725 return(1); 1726 } 1727 1728 /** 1729 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1730 * @phba: pointer to lpfc hba data structure. 1731 * @mdp: pointer to the data structure to hold the derived model name. 1732 * @descp: pointer to the data structure to hold the derived description. 1733 * 1734 * This routine retrieves HBA's description based on its registered PCI device 1735 * ID. The @descp passed into this function points to an array of 256 chars. It 1736 * shall be returned with the model name, maximum speed, and the host bus type. 1737 * The @mdp passed into this function points to an array of 80 chars. When the 1738 * function returns, the @mdp will be filled with the model name. 1739 **/ 1740 static void 1741 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1742 { 1743 lpfc_vpd_t *vp; 1744 uint16_t dev_id = phba->pcidev->device; 1745 int max_speed; 1746 int GE = 0; 1747 int oneConnect = 0; /* default is not a oneConnect */ 1748 struct { 1749 char *name; 1750 char *bus; 1751 char *function; 1752 } m = {"<Unknown>", "", ""}; 1753 1754 if (mdp && mdp[0] != '\0' 1755 && descp && descp[0] != '\0') 1756 return; 1757 1758 if (phba->lmt & LMT_10Gb) 1759 max_speed = 10; 1760 else if (phba->lmt & LMT_8Gb) 1761 max_speed = 8; 1762 else if (phba->lmt & LMT_4Gb) 1763 max_speed = 4; 1764 else if (phba->lmt & LMT_2Gb) 1765 max_speed = 2; 1766 else 1767 max_speed = 1; 1768 1769 vp = &phba->vpd; 1770 1771 switch (dev_id) { 1772 case PCI_DEVICE_ID_FIREFLY: 1773 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1774 break; 1775 case PCI_DEVICE_ID_SUPERFLY: 1776 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1777 m = (typeof(m)){"LP7000", "PCI", 1778 "Fibre Channel Adapter"}; 1779 else 1780 m = (typeof(m)){"LP7000E", "PCI", 1781 "Fibre Channel Adapter"}; 1782 break; 1783 case PCI_DEVICE_ID_DRAGONFLY: 1784 m = (typeof(m)){"LP8000", "PCI", 1785 "Fibre Channel Adapter"}; 1786 break; 1787 case PCI_DEVICE_ID_CENTAUR: 1788 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1789 m = (typeof(m)){"LP9002", "PCI", 1790 "Fibre Channel Adapter"}; 1791 else 1792 m = (typeof(m)){"LP9000", "PCI", 1793 "Fibre Channel Adapter"}; 1794 break; 1795 case PCI_DEVICE_ID_RFLY: 1796 m = (typeof(m)){"LP952", "PCI", 1797 "Fibre Channel Adapter"}; 1798 break; 1799 case PCI_DEVICE_ID_PEGASUS: 1800 m = (typeof(m)){"LP9802", "PCI-X", 1801 "Fibre Channel Adapter"}; 1802 break; 1803 case PCI_DEVICE_ID_THOR: 1804 m = (typeof(m)){"LP10000", "PCI-X", 1805 "Fibre Channel Adapter"}; 1806 break; 1807 case PCI_DEVICE_ID_VIPER: 1808 m = (typeof(m)){"LPX1000", "PCI-X", 1809 "Fibre Channel Adapter"}; 1810 break; 1811 case PCI_DEVICE_ID_PFLY: 1812 m = (typeof(m)){"LP982", "PCI-X", 1813 "Fibre Channel Adapter"}; 1814 break; 1815 case PCI_DEVICE_ID_TFLY: 1816 m = (typeof(m)){"LP1050", "PCI-X", 1817 "Fibre Channel Adapter"}; 1818 break; 1819 case PCI_DEVICE_ID_HELIOS: 1820 m = (typeof(m)){"LP11000", "PCI-X2", 1821 "Fibre Channel Adapter"}; 1822 break; 1823 case PCI_DEVICE_ID_HELIOS_SCSP: 1824 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1825 "Fibre Channel Adapter"}; 1826 break; 1827 case PCI_DEVICE_ID_HELIOS_DCSP: 1828 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1829 "Fibre Channel Adapter"}; 1830 break; 1831 case PCI_DEVICE_ID_NEPTUNE: 1832 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1833 break; 1834 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1835 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1836 break; 1837 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1838 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1839 break; 1840 case PCI_DEVICE_ID_BMID: 1841 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1842 break; 1843 case PCI_DEVICE_ID_BSMB: 1844 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1845 break; 1846 case PCI_DEVICE_ID_ZEPHYR: 1847 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1848 break; 1849 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1850 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1851 break; 1852 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1853 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1854 GE = 1; 1855 break; 1856 case PCI_DEVICE_ID_ZMID: 1857 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1858 break; 1859 case PCI_DEVICE_ID_ZSMB: 1860 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1861 break; 1862 case PCI_DEVICE_ID_LP101: 1863 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1864 break; 1865 case PCI_DEVICE_ID_LP10000S: 1866 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1867 break; 1868 case PCI_DEVICE_ID_LP11000S: 1869 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1870 break; 1871 case PCI_DEVICE_ID_LPE11000S: 1872 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_SAT: 1875 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1876 break; 1877 case PCI_DEVICE_ID_SAT_MID: 1878 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1879 break; 1880 case PCI_DEVICE_ID_SAT_SMB: 1881 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1882 break; 1883 case PCI_DEVICE_ID_SAT_DCSP: 1884 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1885 break; 1886 case PCI_DEVICE_ID_SAT_SCSP: 1887 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1888 break; 1889 case PCI_DEVICE_ID_SAT_S: 1890 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1891 break; 1892 case PCI_DEVICE_ID_HORNET: 1893 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1894 GE = 1; 1895 break; 1896 case PCI_DEVICE_ID_PROTEUS_VF: 1897 m = (typeof(m)){"LPev12000", "PCIe IOV", 1898 "Fibre Channel Adapter"}; 1899 break; 1900 case PCI_DEVICE_ID_PROTEUS_PF: 1901 m = (typeof(m)){"LPev12000", "PCIe IOV", 1902 "Fibre Channel Adapter"}; 1903 break; 1904 case PCI_DEVICE_ID_PROTEUS_S: 1905 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1906 "Fibre Channel Adapter"}; 1907 break; 1908 case PCI_DEVICE_ID_TIGERSHARK: 1909 oneConnect = 1; 1910 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1911 break; 1912 case PCI_DEVICE_ID_TOMCAT: 1913 oneConnect = 1; 1914 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1915 break; 1916 case PCI_DEVICE_ID_FALCON: 1917 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1918 "EmulexSecure Fibre"}; 1919 break; 1920 case PCI_DEVICE_ID_BALIUS: 1921 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1922 "Fibre Channel Adapter"}; 1923 break; 1924 case PCI_DEVICE_ID_LANCER_FC: 1925 oneConnect = 1; 1926 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_LANCER_FCOE: 1929 oneConnect = 1; 1930 m = (typeof(m)){"Undefined", "PCIe", "FCoE"}; 1931 break; 1932 default: 1933 m = (typeof(m)){"Unknown", "", ""}; 1934 break; 1935 } 1936 1937 if (mdp && mdp[0] == '\0') 1938 snprintf(mdp, 79,"%s", m.name); 1939 /* oneConnect hba requires special processing, they are all initiators 1940 * and we put the port number on the end 1941 */ 1942 if (descp && descp[0] == '\0') { 1943 if (oneConnect) 1944 snprintf(descp, 255, 1945 "Emulex OneConnect %s, %s Initiator, Port %s", 1946 m.name, m.function, 1947 phba->Port); 1948 else 1949 snprintf(descp, 255, 1950 "Emulex %s %d%s %s %s", 1951 m.name, max_speed, (GE) ? "GE" : "Gb", 1952 m.bus, m.function); 1953 } 1954 } 1955 1956 /** 1957 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1958 * @phba: pointer to lpfc hba data structure. 1959 * @pring: pointer to a IOCB ring. 1960 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1961 * 1962 * This routine posts a given number of IOCBs with the associated DMA buffer 1963 * descriptors specified by the cnt argument to the given IOCB ring. 1964 * 1965 * Return codes 1966 * The number of IOCBs NOT able to be posted to the IOCB ring. 1967 **/ 1968 int 1969 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1970 { 1971 IOCB_t *icmd; 1972 struct lpfc_iocbq *iocb; 1973 struct lpfc_dmabuf *mp1, *mp2; 1974 1975 cnt += pring->missbufcnt; 1976 1977 /* While there are buffers to post */ 1978 while (cnt > 0) { 1979 /* Allocate buffer for command iocb */ 1980 iocb = lpfc_sli_get_iocbq(phba); 1981 if (iocb == NULL) { 1982 pring->missbufcnt = cnt; 1983 return cnt; 1984 } 1985 icmd = &iocb->iocb; 1986 1987 /* 2 buffers can be posted per command */ 1988 /* Allocate buffer to post */ 1989 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1990 if (mp1) 1991 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1992 if (!mp1 || !mp1->virt) { 1993 kfree(mp1); 1994 lpfc_sli_release_iocbq(phba, iocb); 1995 pring->missbufcnt = cnt; 1996 return cnt; 1997 } 1998 1999 INIT_LIST_HEAD(&mp1->list); 2000 /* Allocate buffer to post */ 2001 if (cnt > 1) { 2002 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2003 if (mp2) 2004 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2005 &mp2->phys); 2006 if (!mp2 || !mp2->virt) { 2007 kfree(mp2); 2008 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2009 kfree(mp1); 2010 lpfc_sli_release_iocbq(phba, iocb); 2011 pring->missbufcnt = cnt; 2012 return cnt; 2013 } 2014 2015 INIT_LIST_HEAD(&mp2->list); 2016 } else { 2017 mp2 = NULL; 2018 } 2019 2020 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2021 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2022 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2023 icmd->ulpBdeCount = 1; 2024 cnt--; 2025 if (mp2) { 2026 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2027 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2028 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2029 cnt--; 2030 icmd->ulpBdeCount = 2; 2031 } 2032 2033 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2034 icmd->ulpLe = 1; 2035 2036 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2037 IOCB_ERROR) { 2038 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2039 kfree(mp1); 2040 cnt++; 2041 if (mp2) { 2042 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2043 kfree(mp2); 2044 cnt++; 2045 } 2046 lpfc_sli_release_iocbq(phba, iocb); 2047 pring->missbufcnt = cnt; 2048 return cnt; 2049 } 2050 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2051 if (mp2) 2052 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2053 } 2054 pring->missbufcnt = 0; 2055 return 0; 2056 } 2057 2058 /** 2059 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2060 * @phba: pointer to lpfc hba data structure. 2061 * 2062 * This routine posts initial receive IOCB buffers to the ELS ring. The 2063 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2064 * set to 64 IOCBs. 2065 * 2066 * Return codes 2067 * 0 - success (currently always success) 2068 **/ 2069 static int 2070 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2071 { 2072 struct lpfc_sli *psli = &phba->sli; 2073 2074 /* Ring 0, ELS / CT buffers */ 2075 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2076 /* Ring 2 - FCP no buffers needed */ 2077 2078 return 0; 2079 } 2080 2081 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2082 2083 /** 2084 * lpfc_sha_init - Set up initial array of hash table entries 2085 * @HashResultPointer: pointer to an array as hash table. 2086 * 2087 * This routine sets up the initial values to the array of hash table entries 2088 * for the LC HBAs. 2089 **/ 2090 static void 2091 lpfc_sha_init(uint32_t * HashResultPointer) 2092 { 2093 HashResultPointer[0] = 0x67452301; 2094 HashResultPointer[1] = 0xEFCDAB89; 2095 HashResultPointer[2] = 0x98BADCFE; 2096 HashResultPointer[3] = 0x10325476; 2097 HashResultPointer[4] = 0xC3D2E1F0; 2098 } 2099 2100 /** 2101 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2102 * @HashResultPointer: pointer to an initial/result hash table. 2103 * @HashWorkingPointer: pointer to an working hash table. 2104 * 2105 * This routine iterates an initial hash table pointed by @HashResultPointer 2106 * with the values from the working hash table pointeed by @HashWorkingPointer. 2107 * The results are putting back to the initial hash table, returned through 2108 * the @HashResultPointer as the result hash table. 2109 **/ 2110 static void 2111 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2112 { 2113 int t; 2114 uint32_t TEMP; 2115 uint32_t A, B, C, D, E; 2116 t = 16; 2117 do { 2118 HashWorkingPointer[t] = 2119 S(1, 2120 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2121 8] ^ 2122 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2123 } while (++t <= 79); 2124 t = 0; 2125 A = HashResultPointer[0]; 2126 B = HashResultPointer[1]; 2127 C = HashResultPointer[2]; 2128 D = HashResultPointer[3]; 2129 E = HashResultPointer[4]; 2130 2131 do { 2132 if (t < 20) { 2133 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2134 } else if (t < 40) { 2135 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2136 } else if (t < 60) { 2137 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2138 } else { 2139 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2140 } 2141 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2142 E = D; 2143 D = C; 2144 C = S(30, B); 2145 B = A; 2146 A = TEMP; 2147 } while (++t <= 79); 2148 2149 HashResultPointer[0] += A; 2150 HashResultPointer[1] += B; 2151 HashResultPointer[2] += C; 2152 HashResultPointer[3] += D; 2153 HashResultPointer[4] += E; 2154 2155 } 2156 2157 /** 2158 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2159 * @RandomChallenge: pointer to the entry of host challenge random number array. 2160 * @HashWorking: pointer to the entry of the working hash array. 2161 * 2162 * This routine calculates the working hash array referred by @HashWorking 2163 * from the challenge random numbers associated with the host, referred by 2164 * @RandomChallenge. The result is put into the entry of the working hash 2165 * array and returned by reference through @HashWorking. 2166 **/ 2167 static void 2168 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2169 { 2170 *HashWorking = (*RandomChallenge ^ *HashWorking); 2171 } 2172 2173 /** 2174 * lpfc_hba_init - Perform special handling for LC HBA initialization 2175 * @phba: pointer to lpfc hba data structure. 2176 * @hbainit: pointer to an array of unsigned 32-bit integers. 2177 * 2178 * This routine performs the special handling for LC HBA initialization. 2179 **/ 2180 void 2181 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2182 { 2183 int t; 2184 uint32_t *HashWorking; 2185 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2186 2187 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2188 if (!HashWorking) 2189 return; 2190 2191 HashWorking[0] = HashWorking[78] = *pwwnn++; 2192 HashWorking[1] = HashWorking[79] = *pwwnn; 2193 2194 for (t = 0; t < 7; t++) 2195 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2196 2197 lpfc_sha_init(hbainit); 2198 lpfc_sha_iterate(hbainit, HashWorking); 2199 kfree(HashWorking); 2200 } 2201 2202 /** 2203 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2204 * @vport: pointer to a virtual N_Port data structure. 2205 * 2206 * This routine performs the necessary cleanups before deleting the @vport. 2207 * It invokes the discovery state machine to perform necessary state 2208 * transitions and to release the ndlps associated with the @vport. Note, 2209 * the physical port is treated as @vport 0. 2210 **/ 2211 void 2212 lpfc_cleanup(struct lpfc_vport *vport) 2213 { 2214 struct lpfc_hba *phba = vport->phba; 2215 struct lpfc_nodelist *ndlp, *next_ndlp; 2216 int i = 0; 2217 2218 if (phba->link_state > LPFC_LINK_DOWN) 2219 lpfc_port_link_failure(vport); 2220 2221 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2222 if (!NLP_CHK_NODE_ACT(ndlp)) { 2223 ndlp = lpfc_enable_node(vport, ndlp, 2224 NLP_STE_UNUSED_NODE); 2225 if (!ndlp) 2226 continue; 2227 spin_lock_irq(&phba->ndlp_lock); 2228 NLP_SET_FREE_REQ(ndlp); 2229 spin_unlock_irq(&phba->ndlp_lock); 2230 /* Trigger the release of the ndlp memory */ 2231 lpfc_nlp_put(ndlp); 2232 continue; 2233 } 2234 spin_lock_irq(&phba->ndlp_lock); 2235 if (NLP_CHK_FREE_REQ(ndlp)) { 2236 /* The ndlp should not be in memory free mode already */ 2237 spin_unlock_irq(&phba->ndlp_lock); 2238 continue; 2239 } else 2240 /* Indicate request for freeing ndlp memory */ 2241 NLP_SET_FREE_REQ(ndlp); 2242 spin_unlock_irq(&phba->ndlp_lock); 2243 2244 if (vport->port_type != LPFC_PHYSICAL_PORT && 2245 ndlp->nlp_DID == Fabric_DID) { 2246 /* Just free up ndlp with Fabric_DID for vports */ 2247 lpfc_nlp_put(ndlp); 2248 continue; 2249 } 2250 2251 if (ndlp->nlp_type & NLP_FABRIC) 2252 lpfc_disc_state_machine(vport, ndlp, NULL, 2253 NLP_EVT_DEVICE_RECOVERY); 2254 2255 lpfc_disc_state_machine(vport, ndlp, NULL, 2256 NLP_EVT_DEVICE_RM); 2257 2258 } 2259 2260 /* At this point, ALL ndlp's should be gone 2261 * because of the previous NLP_EVT_DEVICE_RM. 2262 * Lets wait for this to happen, if needed. 2263 */ 2264 while (!list_empty(&vport->fc_nodes)) { 2265 if (i++ > 3000) { 2266 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2267 "0233 Nodelist not empty\n"); 2268 list_for_each_entry_safe(ndlp, next_ndlp, 2269 &vport->fc_nodes, nlp_listp) { 2270 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2271 LOG_NODE, 2272 "0282 did:x%x ndlp:x%p " 2273 "usgmap:x%x refcnt:%d\n", 2274 ndlp->nlp_DID, (void *)ndlp, 2275 ndlp->nlp_usg_map, 2276 atomic_read( 2277 &ndlp->kref.refcount)); 2278 } 2279 break; 2280 } 2281 2282 /* Wait for any activity on ndlps to settle */ 2283 msleep(10); 2284 } 2285 lpfc_cleanup_vports_rrqs(vport, NULL); 2286 } 2287 2288 /** 2289 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2290 * @vport: pointer to a virtual N_Port data structure. 2291 * 2292 * This routine stops all the timers associated with a @vport. This function 2293 * is invoked before disabling or deleting a @vport. Note that the physical 2294 * port is treated as @vport 0. 2295 **/ 2296 void 2297 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2298 { 2299 del_timer_sync(&vport->els_tmofunc); 2300 del_timer_sync(&vport->fc_fdmitmo); 2301 del_timer_sync(&vport->delayed_disc_tmo); 2302 lpfc_can_disctmo(vport); 2303 return; 2304 } 2305 2306 /** 2307 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2308 * @phba: pointer to lpfc hba data structure. 2309 * 2310 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2311 * caller of this routine should already hold the host lock. 2312 **/ 2313 void 2314 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2315 { 2316 /* Clear pending FCF rediscovery wait flag */ 2317 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2318 2319 /* Now, try to stop the timer */ 2320 del_timer(&phba->fcf.redisc_wait); 2321 } 2322 2323 /** 2324 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2325 * @phba: pointer to lpfc hba data structure. 2326 * 2327 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2328 * checks whether the FCF rediscovery wait timer is pending with the host 2329 * lock held before proceeding with disabling the timer and clearing the 2330 * wait timer pendig flag. 2331 **/ 2332 void 2333 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2334 { 2335 spin_lock_irq(&phba->hbalock); 2336 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2337 /* FCF rediscovery timer already fired or stopped */ 2338 spin_unlock_irq(&phba->hbalock); 2339 return; 2340 } 2341 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2342 /* Clear failover in progress flags */ 2343 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2344 spin_unlock_irq(&phba->hbalock); 2345 } 2346 2347 /** 2348 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2349 * @phba: pointer to lpfc hba data structure. 2350 * 2351 * This routine stops all the timers associated with a HBA. This function is 2352 * invoked before either putting a HBA offline or unloading the driver. 2353 **/ 2354 void 2355 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2356 { 2357 lpfc_stop_vport_timers(phba->pport); 2358 del_timer_sync(&phba->sli.mbox_tmo); 2359 del_timer_sync(&phba->fabric_block_timer); 2360 del_timer_sync(&phba->eratt_poll); 2361 del_timer_sync(&phba->hb_tmofunc); 2362 if (phba->sli_rev == LPFC_SLI_REV4) { 2363 del_timer_sync(&phba->rrq_tmr); 2364 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2365 } 2366 phba->hb_outstanding = 0; 2367 2368 switch (phba->pci_dev_grp) { 2369 case LPFC_PCI_DEV_LP: 2370 /* Stop any LightPulse device specific driver timers */ 2371 del_timer_sync(&phba->fcp_poll_timer); 2372 break; 2373 case LPFC_PCI_DEV_OC: 2374 /* Stop any OneConnect device sepcific driver timers */ 2375 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2376 break; 2377 default: 2378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2379 "0297 Invalid device group (x%x)\n", 2380 phba->pci_dev_grp); 2381 break; 2382 } 2383 return; 2384 } 2385 2386 /** 2387 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2388 * @phba: pointer to lpfc hba data structure. 2389 * 2390 * This routine marks a HBA's management interface as blocked. Once the HBA's 2391 * management interface is marked as blocked, all the user space access to 2392 * the HBA, whether they are from sysfs interface or libdfc interface will 2393 * all be blocked. The HBA is set to block the management interface when the 2394 * driver prepares the HBA interface for online or offline. 2395 **/ 2396 static void 2397 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2398 { 2399 unsigned long iflag; 2400 uint8_t actcmd = MBX_HEARTBEAT; 2401 unsigned long timeout; 2402 2403 2404 spin_lock_irqsave(&phba->hbalock, iflag); 2405 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2406 if (phba->sli.mbox_active) 2407 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2408 spin_unlock_irqrestore(&phba->hbalock, iflag); 2409 /* Determine how long we might wait for the active mailbox 2410 * command to be gracefully completed by firmware. 2411 */ 2412 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2413 jiffies; 2414 /* Wait for the outstnading mailbox command to complete */ 2415 while (phba->sli.mbox_active) { 2416 /* Check active mailbox complete status every 2ms */ 2417 msleep(2); 2418 if (time_after(jiffies, timeout)) { 2419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2420 "2813 Mgmt IO is Blocked %x " 2421 "- mbox cmd %x still active\n", 2422 phba->sli.sli_flag, actcmd); 2423 break; 2424 } 2425 } 2426 } 2427 2428 /** 2429 * lpfc_online - Initialize and bring a HBA online 2430 * @phba: pointer to lpfc hba data structure. 2431 * 2432 * This routine initializes the HBA and brings a HBA online. During this 2433 * process, the management interface is blocked to prevent user space access 2434 * to the HBA interfering with the driver initialization. 2435 * 2436 * Return codes 2437 * 0 - successful 2438 * 1 - failed 2439 **/ 2440 int 2441 lpfc_online(struct lpfc_hba *phba) 2442 { 2443 struct lpfc_vport *vport; 2444 struct lpfc_vport **vports; 2445 int i; 2446 2447 if (!phba) 2448 return 0; 2449 vport = phba->pport; 2450 2451 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2452 return 0; 2453 2454 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2455 "0458 Bring Adapter online\n"); 2456 2457 lpfc_block_mgmt_io(phba); 2458 2459 if (!lpfc_sli_queue_setup(phba)) { 2460 lpfc_unblock_mgmt_io(phba); 2461 return 1; 2462 } 2463 2464 if (phba->sli_rev == LPFC_SLI_REV4) { 2465 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2466 lpfc_unblock_mgmt_io(phba); 2467 return 1; 2468 } 2469 } else { 2470 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2471 lpfc_unblock_mgmt_io(phba); 2472 return 1; 2473 } 2474 } 2475 2476 vports = lpfc_create_vport_work_array(phba); 2477 if (vports != NULL) 2478 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2479 struct Scsi_Host *shost; 2480 shost = lpfc_shost_from_vport(vports[i]); 2481 spin_lock_irq(shost->host_lock); 2482 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2483 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2484 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2485 if (phba->sli_rev == LPFC_SLI_REV4) 2486 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2487 spin_unlock_irq(shost->host_lock); 2488 } 2489 lpfc_destroy_vport_work_array(phba, vports); 2490 2491 lpfc_unblock_mgmt_io(phba); 2492 return 0; 2493 } 2494 2495 /** 2496 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2497 * @phba: pointer to lpfc hba data structure. 2498 * 2499 * This routine marks a HBA's management interface as not blocked. Once the 2500 * HBA's management interface is marked as not blocked, all the user space 2501 * access to the HBA, whether they are from sysfs interface or libdfc 2502 * interface will be allowed. The HBA is set to block the management interface 2503 * when the driver prepares the HBA interface for online or offline and then 2504 * set to unblock the management interface afterwards. 2505 **/ 2506 void 2507 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2508 { 2509 unsigned long iflag; 2510 2511 spin_lock_irqsave(&phba->hbalock, iflag); 2512 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2513 spin_unlock_irqrestore(&phba->hbalock, iflag); 2514 } 2515 2516 /** 2517 * lpfc_offline_prep - Prepare a HBA to be brought offline 2518 * @phba: pointer to lpfc hba data structure. 2519 * 2520 * This routine is invoked to prepare a HBA to be brought offline. It performs 2521 * unregistration login to all the nodes on all vports and flushes the mailbox 2522 * queue to make it ready to be brought offline. 2523 **/ 2524 void 2525 lpfc_offline_prep(struct lpfc_hba * phba) 2526 { 2527 struct lpfc_vport *vport = phba->pport; 2528 struct lpfc_nodelist *ndlp, *next_ndlp; 2529 struct lpfc_vport **vports; 2530 struct Scsi_Host *shost; 2531 int i; 2532 2533 if (vport->fc_flag & FC_OFFLINE_MODE) 2534 return; 2535 2536 lpfc_block_mgmt_io(phba); 2537 2538 lpfc_linkdown(phba); 2539 2540 /* Issue an unreg_login to all nodes on all vports */ 2541 vports = lpfc_create_vport_work_array(phba); 2542 if (vports != NULL) { 2543 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2544 if (vports[i]->load_flag & FC_UNLOADING) 2545 continue; 2546 shost = lpfc_shost_from_vport(vports[i]); 2547 spin_lock_irq(shost->host_lock); 2548 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2549 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2550 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2551 spin_unlock_irq(shost->host_lock); 2552 2553 shost = lpfc_shost_from_vport(vports[i]); 2554 list_for_each_entry_safe(ndlp, next_ndlp, 2555 &vports[i]->fc_nodes, 2556 nlp_listp) { 2557 if (!NLP_CHK_NODE_ACT(ndlp)) 2558 continue; 2559 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2560 continue; 2561 if (ndlp->nlp_type & NLP_FABRIC) { 2562 lpfc_disc_state_machine(vports[i], ndlp, 2563 NULL, NLP_EVT_DEVICE_RECOVERY); 2564 lpfc_disc_state_machine(vports[i], ndlp, 2565 NULL, NLP_EVT_DEVICE_RM); 2566 } 2567 spin_lock_irq(shost->host_lock); 2568 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2569 spin_unlock_irq(shost->host_lock); 2570 lpfc_unreg_rpi(vports[i], ndlp); 2571 } 2572 } 2573 } 2574 lpfc_destroy_vport_work_array(phba, vports); 2575 2576 lpfc_sli_mbox_sys_shutdown(phba); 2577 } 2578 2579 /** 2580 * lpfc_offline - Bring a HBA offline 2581 * @phba: pointer to lpfc hba data structure. 2582 * 2583 * This routine actually brings a HBA offline. It stops all the timers 2584 * associated with the HBA, brings down the SLI layer, and eventually 2585 * marks the HBA as in offline state for the upper layer protocol. 2586 **/ 2587 void 2588 lpfc_offline(struct lpfc_hba *phba) 2589 { 2590 struct Scsi_Host *shost; 2591 struct lpfc_vport **vports; 2592 int i; 2593 2594 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2595 return; 2596 2597 /* stop port and all timers associated with this hba */ 2598 lpfc_stop_port(phba); 2599 vports = lpfc_create_vport_work_array(phba); 2600 if (vports != NULL) 2601 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2602 lpfc_stop_vport_timers(vports[i]); 2603 lpfc_destroy_vport_work_array(phba, vports); 2604 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2605 "0460 Bring Adapter offline\n"); 2606 /* Bring down the SLI Layer and cleanup. The HBA is offline 2607 now. */ 2608 lpfc_sli_hba_down(phba); 2609 spin_lock_irq(&phba->hbalock); 2610 phba->work_ha = 0; 2611 spin_unlock_irq(&phba->hbalock); 2612 vports = lpfc_create_vport_work_array(phba); 2613 if (vports != NULL) 2614 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2615 shost = lpfc_shost_from_vport(vports[i]); 2616 spin_lock_irq(shost->host_lock); 2617 vports[i]->work_port_events = 0; 2618 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2619 spin_unlock_irq(shost->host_lock); 2620 } 2621 lpfc_destroy_vport_work_array(phba, vports); 2622 } 2623 2624 /** 2625 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2626 * @phba: pointer to lpfc hba data structure. 2627 * 2628 * This routine is to free all the SCSI buffers and IOCBs from the driver 2629 * list back to kernel. It is called from lpfc_pci_remove_one to free 2630 * the internal resources before the device is removed from the system. 2631 * 2632 * Return codes 2633 * 0 - successful (for now, it always returns 0) 2634 **/ 2635 static int 2636 lpfc_scsi_free(struct lpfc_hba *phba) 2637 { 2638 struct lpfc_scsi_buf *sb, *sb_next; 2639 struct lpfc_iocbq *io, *io_next; 2640 2641 spin_lock_irq(&phba->hbalock); 2642 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2643 spin_lock(&phba->scsi_buf_list_lock); 2644 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2645 list_del(&sb->list); 2646 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2647 sb->dma_handle); 2648 kfree(sb); 2649 phba->total_scsi_bufs--; 2650 } 2651 spin_unlock(&phba->scsi_buf_list_lock); 2652 2653 /* Release all the lpfc_iocbq entries maintained by this host. */ 2654 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2655 list_del(&io->list); 2656 kfree(io); 2657 phba->total_iocbq_bufs--; 2658 } 2659 spin_unlock_irq(&phba->hbalock); 2660 return 0; 2661 } 2662 2663 /** 2664 * lpfc_create_port - Create an FC port 2665 * @phba: pointer to lpfc hba data structure. 2666 * @instance: a unique integer ID to this FC port. 2667 * @dev: pointer to the device data structure. 2668 * 2669 * This routine creates a FC port for the upper layer protocol. The FC port 2670 * can be created on top of either a physical port or a virtual port provided 2671 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2672 * and associates the FC port created before adding the shost into the SCSI 2673 * layer. 2674 * 2675 * Return codes 2676 * @vport - pointer to the virtual N_Port data structure. 2677 * NULL - port create failed. 2678 **/ 2679 struct lpfc_vport * 2680 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2681 { 2682 struct lpfc_vport *vport; 2683 struct Scsi_Host *shost; 2684 int error = 0; 2685 2686 if (dev != &phba->pcidev->dev) 2687 shost = scsi_host_alloc(&lpfc_vport_template, 2688 sizeof(struct lpfc_vport)); 2689 else 2690 shost = scsi_host_alloc(&lpfc_template, 2691 sizeof(struct lpfc_vport)); 2692 if (!shost) 2693 goto out; 2694 2695 vport = (struct lpfc_vport *) shost->hostdata; 2696 vport->phba = phba; 2697 vport->load_flag |= FC_LOADING; 2698 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2699 vport->fc_rscn_flush = 0; 2700 2701 lpfc_get_vport_cfgparam(vport); 2702 shost->unique_id = instance; 2703 shost->max_id = LPFC_MAX_TARGET; 2704 shost->max_lun = vport->cfg_max_luns; 2705 shost->this_id = -1; 2706 shost->max_cmd_len = 16; 2707 if (phba->sli_rev == LPFC_SLI_REV4) { 2708 shost->dma_boundary = 2709 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2710 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2711 } 2712 2713 /* 2714 * Set initial can_queue value since 0 is no longer supported and 2715 * scsi_add_host will fail. This will be adjusted later based on the 2716 * max xri value determined in hba setup. 2717 */ 2718 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2719 if (dev != &phba->pcidev->dev) { 2720 shost->transportt = lpfc_vport_transport_template; 2721 vport->port_type = LPFC_NPIV_PORT; 2722 } else { 2723 shost->transportt = lpfc_transport_template; 2724 vport->port_type = LPFC_PHYSICAL_PORT; 2725 } 2726 2727 /* Initialize all internally managed lists. */ 2728 INIT_LIST_HEAD(&vport->fc_nodes); 2729 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2730 spin_lock_init(&vport->work_port_lock); 2731 2732 init_timer(&vport->fc_disctmo); 2733 vport->fc_disctmo.function = lpfc_disc_timeout; 2734 vport->fc_disctmo.data = (unsigned long)vport; 2735 2736 init_timer(&vport->fc_fdmitmo); 2737 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2738 vport->fc_fdmitmo.data = (unsigned long)vport; 2739 2740 init_timer(&vport->els_tmofunc); 2741 vport->els_tmofunc.function = lpfc_els_timeout; 2742 vport->els_tmofunc.data = (unsigned long)vport; 2743 2744 init_timer(&vport->delayed_disc_tmo); 2745 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2746 vport->delayed_disc_tmo.data = (unsigned long)vport; 2747 2748 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2749 if (error) 2750 goto out_put_shost; 2751 2752 spin_lock_irq(&phba->hbalock); 2753 list_add_tail(&vport->listentry, &phba->port_list); 2754 spin_unlock_irq(&phba->hbalock); 2755 return vport; 2756 2757 out_put_shost: 2758 scsi_host_put(shost); 2759 out: 2760 return NULL; 2761 } 2762 2763 /** 2764 * destroy_port - destroy an FC port 2765 * @vport: pointer to an lpfc virtual N_Port data structure. 2766 * 2767 * This routine destroys a FC port from the upper layer protocol. All the 2768 * resources associated with the port are released. 2769 **/ 2770 void 2771 destroy_port(struct lpfc_vport *vport) 2772 { 2773 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2774 struct lpfc_hba *phba = vport->phba; 2775 2776 lpfc_debugfs_terminate(vport); 2777 fc_remove_host(shost); 2778 scsi_remove_host(shost); 2779 2780 spin_lock_irq(&phba->hbalock); 2781 list_del_init(&vport->listentry); 2782 spin_unlock_irq(&phba->hbalock); 2783 2784 lpfc_cleanup(vport); 2785 return; 2786 } 2787 2788 /** 2789 * lpfc_get_instance - Get a unique integer ID 2790 * 2791 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2792 * uses the kernel idr facility to perform the task. 2793 * 2794 * Return codes: 2795 * instance - a unique integer ID allocated as the new instance. 2796 * -1 - lpfc get instance failed. 2797 **/ 2798 int 2799 lpfc_get_instance(void) 2800 { 2801 int instance = 0; 2802 2803 /* Assign an unused number */ 2804 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2805 return -1; 2806 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2807 return -1; 2808 return instance; 2809 } 2810 2811 /** 2812 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2813 * @shost: pointer to SCSI host data structure. 2814 * @time: elapsed time of the scan in jiffies. 2815 * 2816 * This routine is called by the SCSI layer with a SCSI host to determine 2817 * whether the scan host is finished. 2818 * 2819 * Note: there is no scan_start function as adapter initialization will have 2820 * asynchronously kicked off the link initialization. 2821 * 2822 * Return codes 2823 * 0 - SCSI host scan is not over yet. 2824 * 1 - SCSI host scan is over. 2825 **/ 2826 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2827 { 2828 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2829 struct lpfc_hba *phba = vport->phba; 2830 int stat = 0; 2831 2832 spin_lock_irq(shost->host_lock); 2833 2834 if (vport->load_flag & FC_UNLOADING) { 2835 stat = 1; 2836 goto finished; 2837 } 2838 if (time >= 30 * HZ) { 2839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2840 "0461 Scanning longer than 30 " 2841 "seconds. Continuing initialization\n"); 2842 stat = 1; 2843 goto finished; 2844 } 2845 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2846 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2847 "0465 Link down longer than 15 " 2848 "seconds. Continuing initialization\n"); 2849 stat = 1; 2850 goto finished; 2851 } 2852 2853 if (vport->port_state != LPFC_VPORT_READY) 2854 goto finished; 2855 if (vport->num_disc_nodes || vport->fc_prli_sent) 2856 goto finished; 2857 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2858 goto finished; 2859 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2860 goto finished; 2861 2862 stat = 1; 2863 2864 finished: 2865 spin_unlock_irq(shost->host_lock); 2866 return stat; 2867 } 2868 2869 /** 2870 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2871 * @shost: pointer to SCSI host data structure. 2872 * 2873 * This routine initializes a given SCSI host attributes on a FC port. The 2874 * SCSI host can be either on top of a physical port or a virtual port. 2875 **/ 2876 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2877 { 2878 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2879 struct lpfc_hba *phba = vport->phba; 2880 /* 2881 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2882 */ 2883 2884 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2885 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2886 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2887 2888 memset(fc_host_supported_fc4s(shost), 0, 2889 sizeof(fc_host_supported_fc4s(shost))); 2890 fc_host_supported_fc4s(shost)[2] = 1; 2891 fc_host_supported_fc4s(shost)[7] = 1; 2892 2893 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2894 sizeof fc_host_symbolic_name(shost)); 2895 2896 fc_host_supported_speeds(shost) = 0; 2897 if (phba->lmt & LMT_10Gb) 2898 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2899 if (phba->lmt & LMT_8Gb) 2900 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2901 if (phba->lmt & LMT_4Gb) 2902 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2903 if (phba->lmt & LMT_2Gb) 2904 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2905 if (phba->lmt & LMT_1Gb) 2906 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2907 2908 fc_host_maxframe_size(shost) = 2909 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2910 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2911 2912 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2913 2914 /* This value is also unchanging */ 2915 memset(fc_host_active_fc4s(shost), 0, 2916 sizeof(fc_host_active_fc4s(shost))); 2917 fc_host_active_fc4s(shost)[2] = 1; 2918 fc_host_active_fc4s(shost)[7] = 1; 2919 2920 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2921 spin_lock_irq(shost->host_lock); 2922 vport->load_flag &= ~FC_LOADING; 2923 spin_unlock_irq(shost->host_lock); 2924 } 2925 2926 /** 2927 * lpfc_stop_port_s3 - Stop SLI3 device port 2928 * @phba: pointer to lpfc hba data structure. 2929 * 2930 * This routine is invoked to stop an SLI3 device port, it stops the device 2931 * from generating interrupts and stops the device driver's timers for the 2932 * device. 2933 **/ 2934 static void 2935 lpfc_stop_port_s3(struct lpfc_hba *phba) 2936 { 2937 /* Clear all interrupt enable conditions */ 2938 writel(0, phba->HCregaddr); 2939 readl(phba->HCregaddr); /* flush */ 2940 /* Clear all pending interrupts */ 2941 writel(0xffffffff, phba->HAregaddr); 2942 readl(phba->HAregaddr); /* flush */ 2943 2944 /* Reset some HBA SLI setup states */ 2945 lpfc_stop_hba_timers(phba); 2946 phba->pport->work_port_events = 0; 2947 } 2948 2949 /** 2950 * lpfc_stop_port_s4 - Stop SLI4 device port 2951 * @phba: pointer to lpfc hba data structure. 2952 * 2953 * This routine is invoked to stop an SLI4 device port, it stops the device 2954 * from generating interrupts and stops the device driver's timers for the 2955 * device. 2956 **/ 2957 static void 2958 lpfc_stop_port_s4(struct lpfc_hba *phba) 2959 { 2960 /* Reset some HBA SLI4 setup states */ 2961 lpfc_stop_hba_timers(phba); 2962 phba->pport->work_port_events = 0; 2963 phba->sli4_hba.intr_enable = 0; 2964 } 2965 2966 /** 2967 * lpfc_stop_port - Wrapper function for stopping hba port 2968 * @phba: Pointer to HBA context object. 2969 * 2970 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2971 * the API jump table function pointer from the lpfc_hba struct. 2972 **/ 2973 void 2974 lpfc_stop_port(struct lpfc_hba *phba) 2975 { 2976 phba->lpfc_stop_port(phba); 2977 } 2978 2979 /** 2980 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 2981 * @phba: Pointer to hba for which this call is being executed. 2982 * 2983 * This routine starts the timer waiting for the FCF rediscovery to complete. 2984 **/ 2985 void 2986 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 2987 { 2988 unsigned long fcf_redisc_wait_tmo = 2989 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 2990 /* Start fcf rediscovery wait period timer */ 2991 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 2992 spin_lock_irq(&phba->hbalock); 2993 /* Allow action to new fcf asynchronous event */ 2994 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 2995 /* Mark the FCF rediscovery pending state */ 2996 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 2997 spin_unlock_irq(&phba->hbalock); 2998 } 2999 3000 /** 3001 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3002 * @ptr: Map to lpfc_hba data structure pointer. 3003 * 3004 * This routine is invoked when waiting for FCF table rediscover has been 3005 * timed out. If new FCF record(s) has (have) been discovered during the 3006 * wait period, a new FCF event shall be added to the FCOE async event 3007 * list, and then worker thread shall be waked up for processing from the 3008 * worker thread context. 3009 **/ 3010 void 3011 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3012 { 3013 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3014 3015 /* Don't send FCF rediscovery event if timer cancelled */ 3016 spin_lock_irq(&phba->hbalock); 3017 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3018 spin_unlock_irq(&phba->hbalock); 3019 return; 3020 } 3021 /* Clear FCF rediscovery timer pending flag */ 3022 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3023 /* FCF rediscovery event to worker thread */ 3024 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3025 spin_unlock_irq(&phba->hbalock); 3026 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3027 "2776 FCF rediscover quiescent timer expired\n"); 3028 /* wake up worker thread */ 3029 lpfc_worker_wake_up(phba); 3030 } 3031 3032 /** 3033 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3034 * @phba: pointer to lpfc hba data structure. 3035 * @acqe_link: pointer to the async link completion queue entry. 3036 * 3037 * This routine is to parse the SLI4 link-attention link fault code and 3038 * translate it into the base driver's read link attention mailbox command 3039 * status. 3040 * 3041 * Return: Link-attention status in terms of base driver's coding. 3042 **/ 3043 static uint16_t 3044 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3045 struct lpfc_acqe_link *acqe_link) 3046 { 3047 uint16_t latt_fault; 3048 3049 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3050 case LPFC_ASYNC_LINK_FAULT_NONE: 3051 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3052 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3053 latt_fault = 0; 3054 break; 3055 default: 3056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3057 "0398 Invalid link fault code: x%x\n", 3058 bf_get(lpfc_acqe_link_fault, acqe_link)); 3059 latt_fault = MBXERR_ERROR; 3060 break; 3061 } 3062 return latt_fault; 3063 } 3064 3065 /** 3066 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3067 * @phba: pointer to lpfc hba data structure. 3068 * @acqe_link: pointer to the async link completion queue entry. 3069 * 3070 * This routine is to parse the SLI4 link attention type and translate it 3071 * into the base driver's link attention type coding. 3072 * 3073 * Return: Link attention type in terms of base driver's coding. 3074 **/ 3075 static uint8_t 3076 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3077 struct lpfc_acqe_link *acqe_link) 3078 { 3079 uint8_t att_type; 3080 3081 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3082 case LPFC_ASYNC_LINK_STATUS_DOWN: 3083 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3084 att_type = LPFC_ATT_LINK_DOWN; 3085 break; 3086 case LPFC_ASYNC_LINK_STATUS_UP: 3087 /* Ignore physical link up events - wait for logical link up */ 3088 att_type = LPFC_ATT_RESERVED; 3089 break; 3090 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3091 att_type = LPFC_ATT_LINK_UP; 3092 break; 3093 default: 3094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3095 "0399 Invalid link attention type: x%x\n", 3096 bf_get(lpfc_acqe_link_status, acqe_link)); 3097 att_type = LPFC_ATT_RESERVED; 3098 break; 3099 } 3100 return att_type; 3101 } 3102 3103 /** 3104 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3105 * @phba: pointer to lpfc hba data structure. 3106 * @acqe_link: pointer to the async link completion queue entry. 3107 * 3108 * This routine is to parse the SLI4 link-attention link speed and translate 3109 * it into the base driver's link-attention link speed coding. 3110 * 3111 * Return: Link-attention link speed in terms of base driver's coding. 3112 **/ 3113 static uint8_t 3114 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3115 struct lpfc_acqe_link *acqe_link) 3116 { 3117 uint8_t link_speed; 3118 3119 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3120 case LPFC_ASYNC_LINK_SPEED_ZERO: 3121 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3122 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3123 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3124 break; 3125 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3126 link_speed = LPFC_LINK_SPEED_1GHZ; 3127 break; 3128 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3129 link_speed = LPFC_LINK_SPEED_10GHZ; 3130 break; 3131 default: 3132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3133 "0483 Invalid link-attention link speed: x%x\n", 3134 bf_get(lpfc_acqe_link_speed, acqe_link)); 3135 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3136 break; 3137 } 3138 return link_speed; 3139 } 3140 3141 /** 3142 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3143 * @phba: pointer to lpfc hba data structure. 3144 * @acqe_link: pointer to the async link completion queue entry. 3145 * 3146 * This routine is to handle the SLI4 asynchronous FCoE link event. 3147 **/ 3148 static void 3149 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3150 struct lpfc_acqe_link *acqe_link) 3151 { 3152 struct lpfc_dmabuf *mp; 3153 LPFC_MBOXQ_t *pmb; 3154 MAILBOX_t *mb; 3155 struct lpfc_mbx_read_top *la; 3156 uint8_t att_type; 3157 int rc; 3158 3159 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3160 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3161 return; 3162 phba->fcoe_eventtag = acqe_link->event_tag; 3163 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3164 if (!pmb) { 3165 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3166 "0395 The mboxq allocation failed\n"); 3167 return; 3168 } 3169 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3170 if (!mp) { 3171 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3172 "0396 The lpfc_dmabuf allocation failed\n"); 3173 goto out_free_pmb; 3174 } 3175 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3176 if (!mp->virt) { 3177 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3178 "0397 The mbuf allocation failed\n"); 3179 goto out_free_dmabuf; 3180 } 3181 3182 /* Cleanup any outstanding ELS commands */ 3183 lpfc_els_flush_all_cmd(phba); 3184 3185 /* Block ELS IOCBs until we have done process link event */ 3186 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3187 3188 /* Update link event statistics */ 3189 phba->sli.slistat.link_event++; 3190 3191 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3192 lpfc_read_topology(phba, pmb, mp); 3193 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3194 pmb->vport = phba->pport; 3195 3196 /* Keep the link status for extra SLI4 state machine reference */ 3197 phba->sli4_hba.link_state.speed = 3198 bf_get(lpfc_acqe_link_speed, acqe_link); 3199 phba->sli4_hba.link_state.duplex = 3200 bf_get(lpfc_acqe_link_duplex, acqe_link); 3201 phba->sli4_hba.link_state.status = 3202 bf_get(lpfc_acqe_link_status, acqe_link); 3203 phba->sli4_hba.link_state.type = 3204 bf_get(lpfc_acqe_link_type, acqe_link); 3205 phba->sli4_hba.link_state.number = 3206 bf_get(lpfc_acqe_link_number, acqe_link); 3207 phba->sli4_hba.link_state.fault = 3208 bf_get(lpfc_acqe_link_fault, acqe_link); 3209 phba->sli4_hba.link_state.logical_speed = 3210 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3211 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3212 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3213 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3214 "Logical speed:%dMbps Fault:%d\n", 3215 phba->sli4_hba.link_state.speed, 3216 phba->sli4_hba.link_state.topology, 3217 phba->sli4_hba.link_state.status, 3218 phba->sli4_hba.link_state.type, 3219 phba->sli4_hba.link_state.number, 3220 phba->sli4_hba.link_state.logical_speed * 10, 3221 phba->sli4_hba.link_state.fault); 3222 /* 3223 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3224 * topology info. Note: Optional for non FC-AL ports. 3225 */ 3226 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3227 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3228 if (rc == MBX_NOT_FINISHED) 3229 goto out_free_dmabuf; 3230 return; 3231 } 3232 /* 3233 * For FCoE Mode: fill in all the topology information we need and call 3234 * the READ_TOPOLOGY completion routine to continue without actually 3235 * sending the READ_TOPOLOGY mailbox command to the port. 3236 */ 3237 /* Parse and translate status field */ 3238 mb = &pmb->u.mb; 3239 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3240 3241 /* Parse and translate link attention fields */ 3242 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3243 la->eventTag = acqe_link->event_tag; 3244 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3245 bf_set(lpfc_mbx_read_top_link_spd, la, 3246 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3247 3248 /* Fake the the following irrelvant fields */ 3249 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3250 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3251 bf_set(lpfc_mbx_read_top_il, la, 0); 3252 bf_set(lpfc_mbx_read_top_pb, la, 0); 3253 bf_set(lpfc_mbx_read_top_fa, la, 0); 3254 bf_set(lpfc_mbx_read_top_mm, la, 0); 3255 3256 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3257 lpfc_mbx_cmpl_read_topology(phba, pmb); 3258 3259 return; 3260 3261 out_free_dmabuf: 3262 kfree(mp); 3263 out_free_pmb: 3264 mempool_free(pmb, phba->mbox_mem_pool); 3265 } 3266 3267 /** 3268 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3269 * @phba: pointer to lpfc hba data structure. 3270 * @acqe_fc: pointer to the async fc completion queue entry. 3271 * 3272 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3273 * that the event was received and then issue a read_topology mailbox command so 3274 * that the rest of the driver will treat it the same as SLI3. 3275 **/ 3276 static void 3277 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3278 { 3279 struct lpfc_dmabuf *mp; 3280 LPFC_MBOXQ_t *pmb; 3281 int rc; 3282 3283 if (bf_get(lpfc_trailer_type, acqe_fc) != 3284 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3286 "2895 Non FC link Event detected.(%d)\n", 3287 bf_get(lpfc_trailer_type, acqe_fc)); 3288 return; 3289 } 3290 /* Keep the link status for extra SLI4 state machine reference */ 3291 phba->sli4_hba.link_state.speed = 3292 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3293 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3294 phba->sli4_hba.link_state.topology = 3295 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3296 phba->sli4_hba.link_state.status = 3297 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3298 phba->sli4_hba.link_state.type = 3299 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3300 phba->sli4_hba.link_state.number = 3301 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3302 phba->sli4_hba.link_state.fault = 3303 bf_get(lpfc_acqe_link_fault, acqe_fc); 3304 phba->sli4_hba.link_state.logical_speed = 3305 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3306 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3307 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3308 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3309 "%dMbps Fault:%d\n", 3310 phba->sli4_hba.link_state.speed, 3311 phba->sli4_hba.link_state.topology, 3312 phba->sli4_hba.link_state.status, 3313 phba->sli4_hba.link_state.type, 3314 phba->sli4_hba.link_state.number, 3315 phba->sli4_hba.link_state.logical_speed * 10, 3316 phba->sli4_hba.link_state.fault); 3317 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3318 if (!pmb) { 3319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3320 "2897 The mboxq allocation failed\n"); 3321 return; 3322 } 3323 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3324 if (!mp) { 3325 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3326 "2898 The lpfc_dmabuf allocation failed\n"); 3327 goto out_free_pmb; 3328 } 3329 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3330 if (!mp->virt) { 3331 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3332 "2899 The mbuf allocation failed\n"); 3333 goto out_free_dmabuf; 3334 } 3335 3336 /* Cleanup any outstanding ELS commands */ 3337 lpfc_els_flush_all_cmd(phba); 3338 3339 /* Block ELS IOCBs until we have done process link event */ 3340 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3341 3342 /* Update link event statistics */ 3343 phba->sli.slistat.link_event++; 3344 3345 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3346 lpfc_read_topology(phba, pmb, mp); 3347 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3348 pmb->vport = phba->pport; 3349 3350 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3351 if (rc == MBX_NOT_FINISHED) 3352 goto out_free_dmabuf; 3353 return; 3354 3355 out_free_dmabuf: 3356 kfree(mp); 3357 out_free_pmb: 3358 mempool_free(pmb, phba->mbox_mem_pool); 3359 } 3360 3361 /** 3362 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3363 * @phba: pointer to lpfc hba data structure. 3364 * @acqe_fc: pointer to the async SLI completion queue entry. 3365 * 3366 * This routine is to handle the SLI4 asynchronous SLI events. 3367 **/ 3368 static void 3369 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3370 { 3371 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3372 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3373 "x%08x SLI Event Type:%d", 3374 acqe_sli->event_data1, acqe_sli->event_data2, 3375 bf_get(lpfc_trailer_type, acqe_sli)); 3376 return; 3377 } 3378 3379 /** 3380 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3381 * @vport: pointer to vport data structure. 3382 * 3383 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3384 * response to a CVL event. 3385 * 3386 * Return the pointer to the ndlp with the vport if successful, otherwise 3387 * return NULL. 3388 **/ 3389 static struct lpfc_nodelist * 3390 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3391 { 3392 struct lpfc_nodelist *ndlp; 3393 struct Scsi_Host *shost; 3394 struct lpfc_hba *phba; 3395 3396 if (!vport) 3397 return NULL; 3398 phba = vport->phba; 3399 if (!phba) 3400 return NULL; 3401 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3402 if (!ndlp) { 3403 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3404 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3405 if (!ndlp) 3406 return 0; 3407 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3408 /* Set the node type */ 3409 ndlp->nlp_type |= NLP_FABRIC; 3410 /* Put ndlp onto node list */ 3411 lpfc_enqueue_node(vport, ndlp); 3412 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3413 /* re-setup ndlp without removing from node list */ 3414 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3415 if (!ndlp) 3416 return 0; 3417 } 3418 if ((phba->pport->port_state < LPFC_FLOGI) && 3419 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3420 return NULL; 3421 /* If virtual link is not yet instantiated ignore CVL */ 3422 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3423 && (vport->port_state != LPFC_VPORT_FAILED)) 3424 return NULL; 3425 shost = lpfc_shost_from_vport(vport); 3426 if (!shost) 3427 return NULL; 3428 lpfc_linkdown_port(vport); 3429 lpfc_cleanup_pending_mbox(vport); 3430 spin_lock_irq(shost->host_lock); 3431 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3432 spin_unlock_irq(shost->host_lock); 3433 3434 return ndlp; 3435 } 3436 3437 /** 3438 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3439 * @vport: pointer to lpfc hba data structure. 3440 * 3441 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3442 * response to a FCF dead event. 3443 **/ 3444 static void 3445 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3446 { 3447 struct lpfc_vport **vports; 3448 int i; 3449 3450 vports = lpfc_create_vport_work_array(phba); 3451 if (vports) 3452 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3453 lpfc_sli4_perform_vport_cvl(vports[i]); 3454 lpfc_destroy_vport_work_array(phba, vports); 3455 } 3456 3457 /** 3458 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3459 * @phba: pointer to lpfc hba data structure. 3460 * @acqe_link: pointer to the async fcoe completion queue entry. 3461 * 3462 * This routine is to handle the SLI4 asynchronous fcoe event. 3463 **/ 3464 static void 3465 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3466 struct lpfc_acqe_fip *acqe_fip) 3467 { 3468 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3469 int rc; 3470 struct lpfc_vport *vport; 3471 struct lpfc_nodelist *ndlp; 3472 struct Scsi_Host *shost; 3473 int active_vlink_present; 3474 struct lpfc_vport **vports; 3475 int i; 3476 3477 phba->fc_eventTag = acqe_fip->event_tag; 3478 phba->fcoe_eventtag = acqe_fip->event_tag; 3479 switch (event_type) { 3480 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3481 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3482 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3483 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3484 LOG_DISCOVERY, 3485 "2546 New FCF event, evt_tag:x%x, " 3486 "index:x%x\n", 3487 acqe_fip->event_tag, 3488 acqe_fip->index); 3489 else 3490 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3491 LOG_DISCOVERY, 3492 "2788 FCF param modified event, " 3493 "evt_tag:x%x, index:x%x\n", 3494 acqe_fip->event_tag, 3495 acqe_fip->index); 3496 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3497 /* 3498 * During period of FCF discovery, read the FCF 3499 * table record indexed by the event to update 3500 * FCF roundrobin failover eligible FCF bmask. 3501 */ 3502 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3503 LOG_DISCOVERY, 3504 "2779 Read FCF (x%x) for updating " 3505 "roundrobin FCF failover bmask\n", 3506 acqe_fip->index); 3507 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3508 } 3509 3510 /* If the FCF discovery is in progress, do nothing. */ 3511 spin_lock_irq(&phba->hbalock); 3512 if (phba->hba_flag & FCF_TS_INPROG) { 3513 spin_unlock_irq(&phba->hbalock); 3514 break; 3515 } 3516 /* If fast FCF failover rescan event is pending, do nothing */ 3517 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3518 spin_unlock_irq(&phba->hbalock); 3519 break; 3520 } 3521 3522 /* If the FCF has been in discovered state, do nothing. */ 3523 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3524 spin_unlock_irq(&phba->hbalock); 3525 break; 3526 } 3527 spin_unlock_irq(&phba->hbalock); 3528 3529 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3530 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3531 "2770 Start FCF table scan per async FCF " 3532 "event, evt_tag:x%x, index:x%x\n", 3533 acqe_fip->event_tag, acqe_fip->index); 3534 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3535 LPFC_FCOE_FCF_GET_FIRST); 3536 if (rc) 3537 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3538 "2547 Issue FCF scan read FCF mailbox " 3539 "command failed (x%x)\n", rc); 3540 break; 3541 3542 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3544 "2548 FCF Table full count 0x%x tag 0x%x\n", 3545 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3546 acqe_fip->event_tag); 3547 break; 3548 3549 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3550 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3551 "2549 FCF (x%x) disconnected from network, " 3552 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3553 /* 3554 * If we are in the middle of FCF failover process, clear 3555 * the corresponding FCF bit in the roundrobin bitmap. 3556 */ 3557 spin_lock_irq(&phba->hbalock); 3558 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3559 spin_unlock_irq(&phba->hbalock); 3560 /* Update FLOGI FCF failover eligible FCF bmask */ 3561 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3562 break; 3563 } 3564 spin_unlock_irq(&phba->hbalock); 3565 3566 /* If the event is not for currently used fcf do nothing */ 3567 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3568 break; 3569 3570 /* 3571 * Otherwise, request the port to rediscover the entire FCF 3572 * table for a fast recovery from case that the current FCF 3573 * is no longer valid as we are not in the middle of FCF 3574 * failover process already. 3575 */ 3576 spin_lock_irq(&phba->hbalock); 3577 /* Mark the fast failover process in progress */ 3578 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3579 spin_unlock_irq(&phba->hbalock); 3580 3581 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3582 "2771 Start FCF fast failover process due to " 3583 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3584 "\n", acqe_fip->event_tag, acqe_fip->index); 3585 rc = lpfc_sli4_redisc_fcf_table(phba); 3586 if (rc) { 3587 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3588 LOG_DISCOVERY, 3589 "2772 Issue FCF rediscover mabilbox " 3590 "command failed, fail through to FCF " 3591 "dead event\n"); 3592 spin_lock_irq(&phba->hbalock); 3593 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3594 spin_unlock_irq(&phba->hbalock); 3595 /* 3596 * Last resort will fail over by treating this 3597 * as a link down to FCF registration. 3598 */ 3599 lpfc_sli4_fcf_dead_failthrough(phba); 3600 } else { 3601 /* Reset FCF roundrobin bmask for new discovery */ 3602 memset(phba->fcf.fcf_rr_bmask, 0, 3603 sizeof(*phba->fcf.fcf_rr_bmask)); 3604 /* 3605 * Handling fast FCF failover to a DEAD FCF event is 3606 * considered equalivant to receiving CVL to all vports. 3607 */ 3608 lpfc_sli4_perform_all_vport_cvl(phba); 3609 } 3610 break; 3611 case LPFC_FIP_EVENT_TYPE_CVL: 3612 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3613 "2718 Clear Virtual Link Received for VPI 0x%x" 3614 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3615 vport = lpfc_find_vport_by_vpid(phba, 3616 acqe_fip->index - phba->vpi_base); 3617 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3618 if (!ndlp) 3619 break; 3620 active_vlink_present = 0; 3621 3622 vports = lpfc_create_vport_work_array(phba); 3623 if (vports) { 3624 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3625 i++) { 3626 if ((!(vports[i]->fc_flag & 3627 FC_VPORT_CVL_RCVD)) && 3628 (vports[i]->port_state > LPFC_FDISC)) { 3629 active_vlink_present = 1; 3630 break; 3631 } 3632 } 3633 lpfc_destroy_vport_work_array(phba, vports); 3634 } 3635 3636 if (active_vlink_present) { 3637 /* 3638 * If there are other active VLinks present, 3639 * re-instantiate the Vlink using FDISC. 3640 */ 3641 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3642 shost = lpfc_shost_from_vport(vport); 3643 spin_lock_irq(shost->host_lock); 3644 ndlp->nlp_flag |= NLP_DELAY_TMO; 3645 spin_unlock_irq(shost->host_lock); 3646 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3647 vport->port_state = LPFC_FDISC; 3648 } else { 3649 /* 3650 * Otherwise, we request port to rediscover 3651 * the entire FCF table for a fast recovery 3652 * from possible case that the current FCF 3653 * is no longer valid if we are not already 3654 * in the FCF failover process. 3655 */ 3656 spin_lock_irq(&phba->hbalock); 3657 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3658 spin_unlock_irq(&phba->hbalock); 3659 break; 3660 } 3661 /* Mark the fast failover process in progress */ 3662 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3663 spin_unlock_irq(&phba->hbalock); 3664 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3665 LOG_DISCOVERY, 3666 "2773 Start FCF failover per CVL, " 3667 "evt_tag:x%x\n", acqe_fip->event_tag); 3668 rc = lpfc_sli4_redisc_fcf_table(phba); 3669 if (rc) { 3670 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3671 LOG_DISCOVERY, 3672 "2774 Issue FCF rediscover " 3673 "mabilbox command failed, " 3674 "through to CVL event\n"); 3675 spin_lock_irq(&phba->hbalock); 3676 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3677 spin_unlock_irq(&phba->hbalock); 3678 /* 3679 * Last resort will be re-try on the 3680 * the current registered FCF entry. 3681 */ 3682 lpfc_retry_pport_discovery(phba); 3683 } else 3684 /* 3685 * Reset FCF roundrobin bmask for new 3686 * discovery. 3687 */ 3688 memset(phba->fcf.fcf_rr_bmask, 0, 3689 sizeof(*phba->fcf.fcf_rr_bmask)); 3690 } 3691 break; 3692 default: 3693 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3694 "0288 Unknown FCoE event type 0x%x event tag " 3695 "0x%x\n", event_type, acqe_fip->event_tag); 3696 break; 3697 } 3698 } 3699 3700 /** 3701 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3702 * @phba: pointer to lpfc hba data structure. 3703 * @acqe_link: pointer to the async dcbx completion queue entry. 3704 * 3705 * This routine is to handle the SLI4 asynchronous dcbx event. 3706 **/ 3707 static void 3708 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3709 struct lpfc_acqe_dcbx *acqe_dcbx) 3710 { 3711 phba->fc_eventTag = acqe_dcbx->event_tag; 3712 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3713 "0290 The SLI4 DCBX asynchronous event is not " 3714 "handled yet\n"); 3715 } 3716 3717 /** 3718 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3719 * @phba: pointer to lpfc hba data structure. 3720 * @acqe_link: pointer to the async grp5 completion queue entry. 3721 * 3722 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3723 * is an asynchronous notified of a logical link speed change. The Port 3724 * reports the logical link speed in units of 10Mbps. 3725 **/ 3726 static void 3727 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3728 struct lpfc_acqe_grp5 *acqe_grp5) 3729 { 3730 uint16_t prev_ll_spd; 3731 3732 phba->fc_eventTag = acqe_grp5->event_tag; 3733 phba->fcoe_eventtag = acqe_grp5->event_tag; 3734 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3735 phba->sli4_hba.link_state.logical_speed = 3736 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3738 "2789 GRP5 Async Event: Updating logical link speed " 3739 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3740 (phba->sli4_hba.link_state.logical_speed*10)); 3741 } 3742 3743 /** 3744 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3745 * @phba: pointer to lpfc hba data structure. 3746 * 3747 * This routine is invoked by the worker thread to process all the pending 3748 * SLI4 asynchronous events. 3749 **/ 3750 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3751 { 3752 struct lpfc_cq_event *cq_event; 3753 3754 /* First, declare the async event has been handled */ 3755 spin_lock_irq(&phba->hbalock); 3756 phba->hba_flag &= ~ASYNC_EVENT; 3757 spin_unlock_irq(&phba->hbalock); 3758 /* Now, handle all the async events */ 3759 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3760 /* Get the first event from the head of the event queue */ 3761 spin_lock_irq(&phba->hbalock); 3762 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3763 cq_event, struct lpfc_cq_event, list); 3764 spin_unlock_irq(&phba->hbalock); 3765 /* Process the asynchronous event */ 3766 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3767 case LPFC_TRAILER_CODE_LINK: 3768 lpfc_sli4_async_link_evt(phba, 3769 &cq_event->cqe.acqe_link); 3770 break; 3771 case LPFC_TRAILER_CODE_FCOE: 3772 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3773 break; 3774 case LPFC_TRAILER_CODE_DCBX: 3775 lpfc_sli4_async_dcbx_evt(phba, 3776 &cq_event->cqe.acqe_dcbx); 3777 break; 3778 case LPFC_TRAILER_CODE_GRP5: 3779 lpfc_sli4_async_grp5_evt(phba, 3780 &cq_event->cqe.acqe_grp5); 3781 break; 3782 case LPFC_TRAILER_CODE_FC: 3783 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3784 break; 3785 case LPFC_TRAILER_CODE_SLI: 3786 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3787 break; 3788 default: 3789 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3790 "1804 Invalid asynchrous event code: " 3791 "x%x\n", bf_get(lpfc_trailer_code, 3792 &cq_event->cqe.mcqe_cmpl)); 3793 break; 3794 } 3795 /* Free the completion event processed to the free pool */ 3796 lpfc_sli4_cq_event_release(phba, cq_event); 3797 } 3798 } 3799 3800 /** 3801 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3802 * @phba: pointer to lpfc hba data structure. 3803 * 3804 * This routine is invoked by the worker thread to process FCF table 3805 * rediscovery pending completion event. 3806 **/ 3807 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3808 { 3809 int rc; 3810 3811 spin_lock_irq(&phba->hbalock); 3812 /* Clear FCF rediscovery timeout event */ 3813 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3814 /* Clear driver fast failover FCF record flag */ 3815 phba->fcf.failover_rec.flag = 0; 3816 /* Set state for FCF fast failover */ 3817 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3818 spin_unlock_irq(&phba->hbalock); 3819 3820 /* Scan FCF table from the first entry to re-discover SAN */ 3821 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3822 "2777 Start post-quiescent FCF table scan\n"); 3823 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3824 if (rc) 3825 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3826 "2747 Issue FCF scan read FCF mailbox " 3827 "command failed 0x%x\n", rc); 3828 } 3829 3830 /** 3831 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3832 * @phba: pointer to lpfc hba data structure. 3833 * @dev_grp: The HBA PCI-Device group number. 3834 * 3835 * This routine is invoked to set up the per HBA PCI-Device group function 3836 * API jump table entries. 3837 * 3838 * Return: 0 if success, otherwise -ENODEV 3839 **/ 3840 int 3841 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3842 { 3843 int rc; 3844 3845 /* Set up lpfc PCI-device group */ 3846 phba->pci_dev_grp = dev_grp; 3847 3848 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3849 if (dev_grp == LPFC_PCI_DEV_OC) 3850 phba->sli_rev = LPFC_SLI_REV4; 3851 3852 /* Set up device INIT API function jump table */ 3853 rc = lpfc_init_api_table_setup(phba, dev_grp); 3854 if (rc) 3855 return -ENODEV; 3856 /* Set up SCSI API function jump table */ 3857 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3858 if (rc) 3859 return -ENODEV; 3860 /* Set up SLI API function jump table */ 3861 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3862 if (rc) 3863 return -ENODEV; 3864 /* Set up MBOX API function jump table */ 3865 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3866 if (rc) 3867 return -ENODEV; 3868 3869 return 0; 3870 } 3871 3872 /** 3873 * lpfc_log_intr_mode - Log the active interrupt mode 3874 * @phba: pointer to lpfc hba data structure. 3875 * @intr_mode: active interrupt mode adopted. 3876 * 3877 * This routine it invoked to log the currently used active interrupt mode 3878 * to the device. 3879 **/ 3880 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3881 { 3882 switch (intr_mode) { 3883 case 0: 3884 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3885 "0470 Enable INTx interrupt mode.\n"); 3886 break; 3887 case 1: 3888 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3889 "0481 Enabled MSI interrupt mode.\n"); 3890 break; 3891 case 2: 3892 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3893 "0480 Enabled MSI-X interrupt mode.\n"); 3894 break; 3895 default: 3896 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3897 "0482 Illegal interrupt mode.\n"); 3898 break; 3899 } 3900 return; 3901 } 3902 3903 /** 3904 * lpfc_enable_pci_dev - Enable a generic PCI device. 3905 * @phba: pointer to lpfc hba data structure. 3906 * 3907 * This routine is invoked to enable the PCI device that is common to all 3908 * PCI devices. 3909 * 3910 * Return codes 3911 * 0 - successful 3912 * other values - error 3913 **/ 3914 static int 3915 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3916 { 3917 struct pci_dev *pdev; 3918 int bars; 3919 3920 /* Obtain PCI device reference */ 3921 if (!phba->pcidev) 3922 goto out_error; 3923 else 3924 pdev = phba->pcidev; 3925 /* Select PCI BARs */ 3926 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3927 /* Enable PCI device */ 3928 if (pci_enable_device_mem(pdev)) 3929 goto out_error; 3930 /* Request PCI resource for the device */ 3931 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3932 goto out_disable_device; 3933 /* Set up device as PCI master and save state for EEH */ 3934 pci_set_master(pdev); 3935 pci_try_set_mwi(pdev); 3936 pci_save_state(pdev); 3937 3938 return 0; 3939 3940 out_disable_device: 3941 pci_disable_device(pdev); 3942 out_error: 3943 return -ENODEV; 3944 } 3945 3946 /** 3947 * lpfc_disable_pci_dev - Disable a generic PCI device. 3948 * @phba: pointer to lpfc hba data structure. 3949 * 3950 * This routine is invoked to disable the PCI device that is common to all 3951 * PCI devices. 3952 **/ 3953 static void 3954 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3955 { 3956 struct pci_dev *pdev; 3957 int bars; 3958 3959 /* Obtain PCI device reference */ 3960 if (!phba->pcidev) 3961 return; 3962 else 3963 pdev = phba->pcidev; 3964 /* Select PCI BARs */ 3965 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3966 /* Release PCI resource and disable PCI device */ 3967 pci_release_selected_regions(pdev, bars); 3968 pci_disable_device(pdev); 3969 /* Null out PCI private reference to driver */ 3970 pci_set_drvdata(pdev, NULL); 3971 3972 return; 3973 } 3974 3975 /** 3976 * lpfc_reset_hba - Reset a hba 3977 * @phba: pointer to lpfc hba data structure. 3978 * 3979 * This routine is invoked to reset a hba device. It brings the HBA 3980 * offline, performs a board restart, and then brings the board back 3981 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3982 * on outstanding mailbox commands. 3983 **/ 3984 void 3985 lpfc_reset_hba(struct lpfc_hba *phba) 3986 { 3987 /* If resets are disabled then set error state and return. */ 3988 if (!phba->cfg_enable_hba_reset) { 3989 phba->link_state = LPFC_HBA_ERROR; 3990 return; 3991 } 3992 lpfc_offline_prep(phba); 3993 lpfc_offline(phba); 3994 lpfc_sli_brdrestart(phba); 3995 lpfc_online(phba); 3996 lpfc_unblock_mgmt_io(phba); 3997 } 3998 3999 /** 4000 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4001 * @phba: pointer to lpfc hba data structure. 4002 * 4003 * This routine is invoked to set up the driver internal resources specific to 4004 * support the SLI-3 HBA device it attached to. 4005 * 4006 * Return codes 4007 * 0 - successful 4008 * other values - error 4009 **/ 4010 static int 4011 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4012 { 4013 struct lpfc_sli *psli; 4014 4015 /* 4016 * Initialize timers used by driver 4017 */ 4018 4019 /* Heartbeat timer */ 4020 init_timer(&phba->hb_tmofunc); 4021 phba->hb_tmofunc.function = lpfc_hb_timeout; 4022 phba->hb_tmofunc.data = (unsigned long)phba; 4023 4024 psli = &phba->sli; 4025 /* MBOX heartbeat timer */ 4026 init_timer(&psli->mbox_tmo); 4027 psli->mbox_tmo.function = lpfc_mbox_timeout; 4028 psli->mbox_tmo.data = (unsigned long) phba; 4029 /* FCP polling mode timer */ 4030 init_timer(&phba->fcp_poll_timer); 4031 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4032 phba->fcp_poll_timer.data = (unsigned long) phba; 4033 /* Fabric block timer */ 4034 init_timer(&phba->fabric_block_timer); 4035 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4036 phba->fabric_block_timer.data = (unsigned long) phba; 4037 /* EA polling mode timer */ 4038 init_timer(&phba->eratt_poll); 4039 phba->eratt_poll.function = lpfc_poll_eratt; 4040 phba->eratt_poll.data = (unsigned long) phba; 4041 4042 /* Host attention work mask setup */ 4043 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4044 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4045 4046 /* Get all the module params for configuring this host */ 4047 lpfc_get_cfgparam(phba); 4048 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4049 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4050 /* check for menlo minimum sg count */ 4051 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4052 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4053 } 4054 4055 /* 4056 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4057 * used to create the sg_dma_buf_pool must be dynamically calculated. 4058 * 2 segments are added since the IOCB needs a command and response bde. 4059 */ 4060 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4061 sizeof(struct fcp_rsp) + 4062 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4063 4064 if (phba->cfg_enable_bg) { 4065 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4066 phba->cfg_sg_dma_buf_size += 4067 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4068 } 4069 4070 /* Also reinitialize the host templates with new values. */ 4071 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4072 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4073 4074 phba->max_vpi = LPFC_MAX_VPI; 4075 /* This will be set to correct value after config_port mbox */ 4076 phba->max_vports = 0; 4077 4078 /* 4079 * Initialize the SLI Layer to run with lpfc HBAs. 4080 */ 4081 lpfc_sli_setup(phba); 4082 lpfc_sli_queue_setup(phba); 4083 4084 /* Allocate device driver memory */ 4085 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4086 return -ENOMEM; 4087 4088 return 0; 4089 } 4090 4091 /** 4092 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4093 * @phba: pointer to lpfc hba data structure. 4094 * 4095 * This routine is invoked to unset the driver internal resources set up 4096 * specific for supporting the SLI-3 HBA device it attached to. 4097 **/ 4098 static void 4099 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4100 { 4101 /* Free device driver memory allocated */ 4102 lpfc_mem_free_all(phba); 4103 4104 return; 4105 } 4106 4107 /** 4108 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4109 * @phba: pointer to lpfc hba data structure. 4110 * 4111 * This routine is invoked to set up the driver internal resources specific to 4112 * support the SLI-4 HBA device it attached to. 4113 * 4114 * Return codes 4115 * 0 - successful 4116 * other values - error 4117 **/ 4118 static int 4119 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4120 { 4121 struct lpfc_sli *psli; 4122 LPFC_MBOXQ_t *mboxq; 4123 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4124 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4125 struct lpfc_mqe *mqe; 4126 int longs, sli_family; 4127 4128 /* Before proceed, wait for POST done and device ready */ 4129 rc = lpfc_sli4_post_status_check(phba); 4130 if (rc) 4131 return -ENODEV; 4132 4133 /* 4134 * Initialize timers used by driver 4135 */ 4136 4137 /* Heartbeat timer */ 4138 init_timer(&phba->hb_tmofunc); 4139 phba->hb_tmofunc.function = lpfc_hb_timeout; 4140 phba->hb_tmofunc.data = (unsigned long)phba; 4141 init_timer(&phba->rrq_tmr); 4142 phba->rrq_tmr.function = lpfc_rrq_timeout; 4143 phba->rrq_tmr.data = (unsigned long)phba; 4144 4145 psli = &phba->sli; 4146 /* MBOX heartbeat timer */ 4147 init_timer(&psli->mbox_tmo); 4148 psli->mbox_tmo.function = lpfc_mbox_timeout; 4149 psli->mbox_tmo.data = (unsigned long) phba; 4150 /* Fabric block timer */ 4151 init_timer(&phba->fabric_block_timer); 4152 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4153 phba->fabric_block_timer.data = (unsigned long) phba; 4154 /* EA polling mode timer */ 4155 init_timer(&phba->eratt_poll); 4156 phba->eratt_poll.function = lpfc_poll_eratt; 4157 phba->eratt_poll.data = (unsigned long) phba; 4158 /* FCF rediscover timer */ 4159 init_timer(&phba->fcf.redisc_wait); 4160 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4161 phba->fcf.redisc_wait.data = (unsigned long)phba; 4162 4163 /* 4164 * We need to do a READ_CONFIG mailbox command here before 4165 * calling lpfc_get_cfgparam. For VFs this will report the 4166 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4167 * All of the resources allocated 4168 * for this Port are tied to these values. 4169 */ 4170 /* Get all the module params for configuring this host */ 4171 lpfc_get_cfgparam(phba); 4172 phba->max_vpi = LPFC_MAX_VPI; 4173 /* This will be set to correct value after the read_config mbox */ 4174 phba->max_vports = 0; 4175 4176 /* Program the default value of vlan_id and fc_map */ 4177 phba->valid_vlan = 0; 4178 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4179 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4180 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4181 4182 /* 4183 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4184 * used to create the sg_dma_buf_pool must be dynamically calculated. 4185 * 2 segments are added since the IOCB needs a command and response bde. 4186 * To insure that the scsi sgl does not cross a 4k page boundary only 4187 * sgl sizes of must be a power of 2. 4188 */ 4189 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4190 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4191 4192 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4193 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4194 switch (sli_family) { 4195 case LPFC_SLI_INTF_FAMILY_BE2: 4196 case LPFC_SLI_INTF_FAMILY_BE3: 4197 /* There is a single hint for BE - 2 pages per BPL. */ 4198 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4199 LPFC_SLI_INTF_SLI_HINT1_1) 4200 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4201 break; 4202 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4203 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4204 default: 4205 break; 4206 } 4207 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4208 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4209 dma_buf_size = dma_buf_size << 1) 4210 ; 4211 if (dma_buf_size == max_buf_size) 4212 phba->cfg_sg_seg_cnt = (dma_buf_size - 4213 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4214 (2 * sizeof(struct sli4_sge))) / 4215 sizeof(struct sli4_sge); 4216 phba->cfg_sg_dma_buf_size = dma_buf_size; 4217 4218 /* Initialize buffer queue management fields */ 4219 hbq_count = lpfc_sli_hbq_count(); 4220 for (i = 0; i < hbq_count; ++i) 4221 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4222 INIT_LIST_HEAD(&phba->rb_pend_list); 4223 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4224 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4225 4226 /* 4227 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4228 */ 4229 /* Initialize the Abort scsi buffer list used by driver */ 4230 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4231 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4232 /* This abort list used by worker thread */ 4233 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4234 4235 /* 4236 * Initialize dirver internal slow-path work queues 4237 */ 4238 4239 /* Driver internel slow-path CQ Event pool */ 4240 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4241 /* Response IOCB work queue list */ 4242 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4243 /* Asynchronous event CQ Event work queue list */ 4244 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4245 /* Fast-path XRI aborted CQ Event work queue list */ 4246 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4247 /* Slow-path XRI aborted CQ Event work queue list */ 4248 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4249 /* Receive queue CQ Event work queue list */ 4250 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4251 4252 /* Initialize the driver internal SLI layer lists. */ 4253 lpfc_sli_setup(phba); 4254 lpfc_sli_queue_setup(phba); 4255 4256 /* Allocate device driver memory */ 4257 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4258 if (rc) 4259 return -ENOMEM; 4260 4261 /* IF Type 2 ports get initialized now. */ 4262 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4263 LPFC_SLI_INTF_IF_TYPE_2) { 4264 rc = lpfc_pci_function_reset(phba); 4265 if (unlikely(rc)) 4266 return -ENODEV; 4267 } 4268 4269 /* Create the bootstrap mailbox command */ 4270 rc = lpfc_create_bootstrap_mbox(phba); 4271 if (unlikely(rc)) 4272 goto out_free_mem; 4273 4274 /* Set up the host's endian order with the device. */ 4275 rc = lpfc_setup_endian_order(phba); 4276 if (unlikely(rc)) 4277 goto out_free_bsmbx; 4278 4279 /* Set up the hba's configuration parameters. */ 4280 rc = lpfc_sli4_read_config(phba); 4281 if (unlikely(rc)) 4282 goto out_free_bsmbx; 4283 4284 /* IF Type 0 ports get initialized now. */ 4285 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4286 LPFC_SLI_INTF_IF_TYPE_0) { 4287 rc = lpfc_pci_function_reset(phba); 4288 if (unlikely(rc)) 4289 goto out_free_bsmbx; 4290 } 4291 4292 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4293 GFP_KERNEL); 4294 if (!mboxq) { 4295 rc = -ENOMEM; 4296 goto out_free_bsmbx; 4297 } 4298 4299 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4300 lpfc_supported_pages(mboxq); 4301 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4302 if (!rc) { 4303 mqe = &mboxq->u.mqe; 4304 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4305 LPFC_MAX_SUPPORTED_PAGES); 4306 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4307 switch (pn_page[i]) { 4308 case LPFC_SLI4_PARAMETERS: 4309 phba->sli4_hba.pc_sli4_params.supported = 1; 4310 break; 4311 default: 4312 break; 4313 } 4314 } 4315 /* Read the port's SLI4 Parameters capabilities if supported. */ 4316 if (phba->sli4_hba.pc_sli4_params.supported) 4317 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4318 if (rc) { 4319 mempool_free(mboxq, phba->mbox_mem_pool); 4320 rc = -EIO; 4321 goto out_free_bsmbx; 4322 } 4323 } 4324 /* 4325 * Get sli4 parameters that override parameters from Port capabilities. 4326 * If this call fails it is not a critical error so continue loading. 4327 */ 4328 lpfc_get_sli4_parameters(phba, mboxq); 4329 mempool_free(mboxq, phba->mbox_mem_pool); 4330 /* Create all the SLI4 queues */ 4331 rc = lpfc_sli4_queue_create(phba); 4332 if (rc) 4333 goto out_free_bsmbx; 4334 4335 /* Create driver internal CQE event pool */ 4336 rc = lpfc_sli4_cq_event_pool_create(phba); 4337 if (rc) 4338 goto out_destroy_queue; 4339 4340 /* Initialize and populate the iocb list per host */ 4341 rc = lpfc_init_sgl_list(phba); 4342 if (rc) { 4343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4344 "1400 Failed to initialize sgl list.\n"); 4345 goto out_destroy_cq_event_pool; 4346 } 4347 rc = lpfc_init_active_sgl_array(phba); 4348 if (rc) { 4349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4350 "1430 Failed to initialize sgl list.\n"); 4351 goto out_free_sgl_list; 4352 } 4353 4354 rc = lpfc_sli4_init_rpi_hdrs(phba); 4355 if (rc) { 4356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4357 "1432 Failed to initialize rpi headers.\n"); 4358 goto out_free_active_sgl; 4359 } 4360 4361 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4362 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4363 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4364 GFP_KERNEL); 4365 if (!phba->fcf.fcf_rr_bmask) { 4366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4367 "2759 Failed allocate memory for FCF round " 4368 "robin failover bmask\n"); 4369 goto out_remove_rpi_hdrs; 4370 } 4371 4372 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4373 phba->cfg_fcp_eq_count), GFP_KERNEL); 4374 if (!phba->sli4_hba.fcp_eq_hdl) { 4375 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4376 "2572 Failed allocate memory for fast-path " 4377 "per-EQ handle array\n"); 4378 goto out_free_fcf_rr_bmask; 4379 } 4380 4381 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4382 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4383 if (!phba->sli4_hba.msix_entries) { 4384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4385 "2573 Failed allocate memory for msi-x " 4386 "interrupt vector entries\n"); 4387 goto out_free_fcp_eq_hdl; 4388 } 4389 4390 return rc; 4391 4392 out_free_fcp_eq_hdl: 4393 kfree(phba->sli4_hba.fcp_eq_hdl); 4394 out_free_fcf_rr_bmask: 4395 kfree(phba->fcf.fcf_rr_bmask); 4396 out_remove_rpi_hdrs: 4397 lpfc_sli4_remove_rpi_hdrs(phba); 4398 out_free_active_sgl: 4399 lpfc_free_active_sgl(phba); 4400 out_free_sgl_list: 4401 lpfc_free_sgl_list(phba); 4402 out_destroy_cq_event_pool: 4403 lpfc_sli4_cq_event_pool_destroy(phba); 4404 out_destroy_queue: 4405 lpfc_sli4_queue_destroy(phba); 4406 out_free_bsmbx: 4407 lpfc_destroy_bootstrap_mbox(phba); 4408 out_free_mem: 4409 lpfc_mem_free(phba); 4410 return rc; 4411 } 4412 4413 /** 4414 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4415 * @phba: pointer to lpfc hba data structure. 4416 * 4417 * This routine is invoked to unset the driver internal resources set up 4418 * specific for supporting the SLI-4 HBA device it attached to. 4419 **/ 4420 static void 4421 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4422 { 4423 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4424 4425 /* Free memory allocated for msi-x interrupt vector entries */ 4426 kfree(phba->sli4_hba.msix_entries); 4427 4428 /* Free memory allocated for fast-path work queue handles */ 4429 kfree(phba->sli4_hba.fcp_eq_hdl); 4430 4431 /* Free the allocated rpi headers. */ 4432 lpfc_sli4_remove_rpi_hdrs(phba); 4433 lpfc_sli4_remove_rpis(phba); 4434 4435 /* Free eligible FCF index bmask */ 4436 kfree(phba->fcf.fcf_rr_bmask); 4437 4438 /* Free the ELS sgl list */ 4439 lpfc_free_active_sgl(phba); 4440 lpfc_free_sgl_list(phba); 4441 4442 /* Free the SCSI sgl management array */ 4443 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4444 4445 /* Free the SLI4 queues */ 4446 lpfc_sli4_queue_destroy(phba); 4447 4448 /* Free the completion queue EQ event pool */ 4449 lpfc_sli4_cq_event_release_all(phba); 4450 lpfc_sli4_cq_event_pool_destroy(phba); 4451 4452 /* Free the bsmbx region. */ 4453 lpfc_destroy_bootstrap_mbox(phba); 4454 4455 /* Free the SLI Layer memory with SLI4 HBAs */ 4456 lpfc_mem_free_all(phba); 4457 4458 /* Free the current connect table */ 4459 list_for_each_entry_safe(conn_entry, next_conn_entry, 4460 &phba->fcf_conn_rec_list, list) { 4461 list_del_init(&conn_entry->list); 4462 kfree(conn_entry); 4463 } 4464 4465 return; 4466 } 4467 4468 /** 4469 * lpfc_init_api_table_setup - Set up init api function jump table 4470 * @phba: The hba struct for which this call is being executed. 4471 * @dev_grp: The HBA PCI-Device group number. 4472 * 4473 * This routine sets up the device INIT interface API function jump table 4474 * in @phba struct. 4475 * 4476 * Returns: 0 - success, -ENODEV - failure. 4477 **/ 4478 int 4479 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4480 { 4481 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4482 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4483 phba->lpfc_selective_reset = lpfc_selective_reset; 4484 switch (dev_grp) { 4485 case LPFC_PCI_DEV_LP: 4486 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4487 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4488 phba->lpfc_stop_port = lpfc_stop_port_s3; 4489 break; 4490 case LPFC_PCI_DEV_OC: 4491 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4492 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4493 phba->lpfc_stop_port = lpfc_stop_port_s4; 4494 break; 4495 default: 4496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4497 "1431 Invalid HBA PCI-device group: 0x%x\n", 4498 dev_grp); 4499 return -ENODEV; 4500 break; 4501 } 4502 return 0; 4503 } 4504 4505 /** 4506 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4507 * @phba: pointer to lpfc hba data structure. 4508 * 4509 * This routine is invoked to set up the driver internal resources before the 4510 * device specific resource setup to support the HBA device it attached to. 4511 * 4512 * Return codes 4513 * 0 - successful 4514 * other values - error 4515 **/ 4516 static int 4517 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4518 { 4519 /* 4520 * Driver resources common to all SLI revisions 4521 */ 4522 atomic_set(&phba->fast_event_count, 0); 4523 spin_lock_init(&phba->hbalock); 4524 4525 /* Initialize ndlp management spinlock */ 4526 spin_lock_init(&phba->ndlp_lock); 4527 4528 INIT_LIST_HEAD(&phba->port_list); 4529 INIT_LIST_HEAD(&phba->work_list); 4530 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4531 4532 /* Initialize the wait queue head for the kernel thread */ 4533 init_waitqueue_head(&phba->work_waitq); 4534 4535 /* Initialize the scsi buffer list used by driver for scsi IO */ 4536 spin_lock_init(&phba->scsi_buf_list_lock); 4537 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4538 4539 /* Initialize the fabric iocb list */ 4540 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4541 4542 /* Initialize list to save ELS buffers */ 4543 INIT_LIST_HEAD(&phba->elsbuf); 4544 4545 /* Initialize FCF connection rec list */ 4546 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4547 4548 return 0; 4549 } 4550 4551 /** 4552 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4553 * @phba: pointer to lpfc hba data structure. 4554 * 4555 * This routine is invoked to set up the driver internal resources after the 4556 * device specific resource setup to support the HBA device it attached to. 4557 * 4558 * Return codes 4559 * 0 - successful 4560 * other values - error 4561 **/ 4562 static int 4563 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4564 { 4565 int error; 4566 4567 /* Startup the kernel thread for this host adapter. */ 4568 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4569 "lpfc_worker_%d", phba->brd_no); 4570 if (IS_ERR(phba->worker_thread)) { 4571 error = PTR_ERR(phba->worker_thread); 4572 return error; 4573 } 4574 4575 return 0; 4576 } 4577 4578 /** 4579 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4580 * @phba: pointer to lpfc hba data structure. 4581 * 4582 * This routine is invoked to unset the driver internal resources set up after 4583 * the device specific resource setup for supporting the HBA device it 4584 * attached to. 4585 **/ 4586 static void 4587 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4588 { 4589 /* Stop kernel worker thread */ 4590 kthread_stop(phba->worker_thread); 4591 } 4592 4593 /** 4594 * lpfc_free_iocb_list - Free iocb list. 4595 * @phba: pointer to lpfc hba data structure. 4596 * 4597 * This routine is invoked to free the driver's IOCB list and memory. 4598 **/ 4599 static void 4600 lpfc_free_iocb_list(struct lpfc_hba *phba) 4601 { 4602 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4603 4604 spin_lock_irq(&phba->hbalock); 4605 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4606 &phba->lpfc_iocb_list, list) { 4607 list_del(&iocbq_entry->list); 4608 kfree(iocbq_entry); 4609 phba->total_iocbq_bufs--; 4610 } 4611 spin_unlock_irq(&phba->hbalock); 4612 4613 return; 4614 } 4615 4616 /** 4617 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4618 * @phba: pointer to lpfc hba data structure. 4619 * 4620 * This routine is invoked to allocate and initizlize the driver's IOCB 4621 * list and set up the IOCB tag array accordingly. 4622 * 4623 * Return codes 4624 * 0 - successful 4625 * other values - error 4626 **/ 4627 static int 4628 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4629 { 4630 struct lpfc_iocbq *iocbq_entry = NULL; 4631 uint16_t iotag; 4632 int i; 4633 4634 /* Initialize and populate the iocb list per host. */ 4635 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4636 for (i = 0; i < iocb_count; i++) { 4637 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4638 if (iocbq_entry == NULL) { 4639 printk(KERN_ERR "%s: only allocated %d iocbs of " 4640 "expected %d count. Unloading driver.\n", 4641 __func__, i, LPFC_IOCB_LIST_CNT); 4642 goto out_free_iocbq; 4643 } 4644 4645 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4646 if (iotag == 0) { 4647 kfree(iocbq_entry); 4648 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4649 "Unloading driver.\n", __func__); 4650 goto out_free_iocbq; 4651 } 4652 iocbq_entry->sli4_xritag = NO_XRI; 4653 4654 spin_lock_irq(&phba->hbalock); 4655 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4656 phba->total_iocbq_bufs++; 4657 spin_unlock_irq(&phba->hbalock); 4658 } 4659 4660 return 0; 4661 4662 out_free_iocbq: 4663 lpfc_free_iocb_list(phba); 4664 4665 return -ENOMEM; 4666 } 4667 4668 /** 4669 * lpfc_free_sgl_list - Free sgl list. 4670 * @phba: pointer to lpfc hba data structure. 4671 * 4672 * This routine is invoked to free the driver's sgl list and memory. 4673 **/ 4674 static void 4675 lpfc_free_sgl_list(struct lpfc_hba *phba) 4676 { 4677 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4678 LIST_HEAD(sglq_list); 4679 4680 spin_lock_irq(&phba->hbalock); 4681 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4682 spin_unlock_irq(&phba->hbalock); 4683 4684 list_for_each_entry_safe(sglq_entry, sglq_next, 4685 &sglq_list, list) { 4686 list_del(&sglq_entry->list); 4687 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4688 kfree(sglq_entry); 4689 phba->sli4_hba.total_sglq_bufs--; 4690 } 4691 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4692 } 4693 4694 /** 4695 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4696 * @phba: pointer to lpfc hba data structure. 4697 * 4698 * This routine is invoked to allocate the driver's active sgl memory. 4699 * This array will hold the sglq_entry's for active IOs. 4700 **/ 4701 static int 4702 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4703 { 4704 int size; 4705 size = sizeof(struct lpfc_sglq *); 4706 size *= phba->sli4_hba.max_cfg_param.max_xri; 4707 4708 phba->sli4_hba.lpfc_sglq_active_list = 4709 kzalloc(size, GFP_KERNEL); 4710 if (!phba->sli4_hba.lpfc_sglq_active_list) 4711 return -ENOMEM; 4712 return 0; 4713 } 4714 4715 /** 4716 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4717 * @phba: pointer to lpfc hba data structure. 4718 * 4719 * This routine is invoked to walk through the array of active sglq entries 4720 * and free all of the resources. 4721 * This is just a place holder for now. 4722 **/ 4723 static void 4724 lpfc_free_active_sgl(struct lpfc_hba *phba) 4725 { 4726 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4727 } 4728 4729 /** 4730 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4731 * @phba: pointer to lpfc hba data structure. 4732 * 4733 * This routine is invoked to allocate and initizlize the driver's sgl 4734 * list and set up the sgl xritag tag array accordingly. 4735 * 4736 * Return codes 4737 * 0 - successful 4738 * other values - error 4739 **/ 4740 static int 4741 lpfc_init_sgl_list(struct lpfc_hba *phba) 4742 { 4743 struct lpfc_sglq *sglq_entry = NULL; 4744 int i; 4745 int els_xri_cnt; 4746 4747 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4748 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4749 "2400 lpfc_init_sgl_list els %d.\n", 4750 els_xri_cnt); 4751 /* Initialize and populate the sglq list per host/VF. */ 4752 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4753 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4754 4755 /* Sanity check on XRI management */ 4756 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4757 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4758 "2562 No room left for SCSI XRI allocation: " 4759 "max_xri=%d, els_xri=%d\n", 4760 phba->sli4_hba.max_cfg_param.max_xri, 4761 els_xri_cnt); 4762 return -ENOMEM; 4763 } 4764 4765 /* Allocate memory for the ELS XRI management array */ 4766 phba->sli4_hba.lpfc_els_sgl_array = 4767 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4768 GFP_KERNEL); 4769 4770 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4771 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4772 "2401 Failed to allocate memory for ELS " 4773 "XRI management array of size %d.\n", 4774 els_xri_cnt); 4775 return -ENOMEM; 4776 } 4777 4778 /* Keep the SCSI XRI into the XRI management array */ 4779 phba->sli4_hba.scsi_xri_max = 4780 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4781 phba->sli4_hba.scsi_xri_cnt = 0; 4782 4783 phba->sli4_hba.lpfc_scsi_psb_array = 4784 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4785 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4786 4787 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4788 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4789 "2563 Failed to allocate memory for SCSI " 4790 "XRI management array of size %d.\n", 4791 phba->sli4_hba.scsi_xri_max); 4792 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4793 return -ENOMEM; 4794 } 4795 4796 for (i = 0; i < els_xri_cnt; i++) { 4797 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4798 if (sglq_entry == NULL) { 4799 printk(KERN_ERR "%s: only allocated %d sgls of " 4800 "expected %d count. Unloading driver.\n", 4801 __func__, i, els_xri_cnt); 4802 goto out_free_mem; 4803 } 4804 4805 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 4806 if (sglq_entry->sli4_xritag == NO_XRI) { 4807 kfree(sglq_entry); 4808 printk(KERN_ERR "%s: failed to allocate XRI.\n" 4809 "Unloading driver.\n", __func__); 4810 goto out_free_mem; 4811 } 4812 sglq_entry->buff_type = GEN_BUFF_TYPE; 4813 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4814 if (sglq_entry->virt == NULL) { 4815 kfree(sglq_entry); 4816 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4817 "Unloading driver.\n", __func__); 4818 goto out_free_mem; 4819 } 4820 sglq_entry->sgl = sglq_entry->virt; 4821 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4822 4823 /* The list order is used by later block SGL registraton */ 4824 spin_lock_irq(&phba->hbalock); 4825 sglq_entry->state = SGL_FREED; 4826 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4827 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4828 phba->sli4_hba.total_sglq_bufs++; 4829 spin_unlock_irq(&phba->hbalock); 4830 } 4831 return 0; 4832 4833 out_free_mem: 4834 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4835 lpfc_free_sgl_list(phba); 4836 return -ENOMEM; 4837 } 4838 4839 /** 4840 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4841 * @phba: pointer to lpfc hba data structure. 4842 * 4843 * This routine is invoked to post rpi header templates to the 4844 * HBA consistent with the SLI-4 interface spec. This routine 4845 * posts a PAGE_SIZE memory region to the port to hold up to 4846 * PAGE_SIZE modulo 64 rpi context headers. 4847 * No locks are held here because this is an initialization routine 4848 * called only from probe or lpfc_online when interrupts are not 4849 * enabled and the driver is reinitializing the device. 4850 * 4851 * Return codes 4852 * 0 - successful 4853 * -ENOMEM - No available memory 4854 * -EIO - The mailbox failed to complete successfully. 4855 **/ 4856 int 4857 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4858 { 4859 int rc = 0; 4860 int longs; 4861 uint16_t rpi_count; 4862 struct lpfc_rpi_hdr *rpi_hdr; 4863 4864 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4865 4866 /* 4867 * Provision an rpi bitmask range for discovery. The total count 4868 * is the difference between max and base + 1. 4869 */ 4870 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4871 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4872 4873 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4874 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4875 GFP_KERNEL); 4876 if (!phba->sli4_hba.rpi_bmask) 4877 return -ENOMEM; 4878 4879 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4880 if (!rpi_hdr) { 4881 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4882 "0391 Error during rpi post operation\n"); 4883 lpfc_sli4_remove_rpis(phba); 4884 rc = -ENODEV; 4885 } 4886 4887 return rc; 4888 } 4889 4890 /** 4891 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4892 * @phba: pointer to lpfc hba data structure. 4893 * 4894 * This routine is invoked to allocate a single 4KB memory region to 4895 * support rpis and stores them in the phba. This single region 4896 * provides support for up to 64 rpis. The region is used globally 4897 * by the device. 4898 * 4899 * Returns: 4900 * A valid rpi hdr on success. 4901 * A NULL pointer on any failure. 4902 **/ 4903 struct lpfc_rpi_hdr * 4904 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4905 { 4906 uint16_t rpi_limit, curr_rpi_range; 4907 struct lpfc_dmabuf *dmabuf; 4908 struct lpfc_rpi_hdr *rpi_hdr; 4909 uint32_t rpi_count; 4910 4911 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4912 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4913 4914 spin_lock_irq(&phba->hbalock); 4915 curr_rpi_range = phba->sli4_hba.next_rpi; 4916 spin_unlock_irq(&phba->hbalock); 4917 4918 /* 4919 * The port has a limited number of rpis. The increment here 4920 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4921 * and to allow the full max_rpi range per port. 4922 */ 4923 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4924 rpi_count = rpi_limit - curr_rpi_range; 4925 else 4926 rpi_count = LPFC_RPI_HDR_COUNT; 4927 4928 /* 4929 * First allocate the protocol header region for the port. The 4930 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4931 */ 4932 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4933 if (!dmabuf) 4934 return NULL; 4935 4936 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4937 LPFC_HDR_TEMPLATE_SIZE, 4938 &dmabuf->phys, 4939 GFP_KERNEL); 4940 if (!dmabuf->virt) { 4941 rpi_hdr = NULL; 4942 goto err_free_dmabuf; 4943 } 4944 4945 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4946 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4947 rpi_hdr = NULL; 4948 goto err_free_coherent; 4949 } 4950 4951 /* Save the rpi header data for cleanup later. */ 4952 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4953 if (!rpi_hdr) 4954 goto err_free_coherent; 4955 4956 rpi_hdr->dmabuf = dmabuf; 4957 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4958 rpi_hdr->page_count = 1; 4959 spin_lock_irq(&phba->hbalock); 4960 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4961 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4962 4963 /* 4964 * The next_rpi stores the next module-64 rpi value to post 4965 * in any subsequent rpi memory region postings. 4966 */ 4967 phba->sli4_hba.next_rpi += rpi_count; 4968 spin_unlock_irq(&phba->hbalock); 4969 return rpi_hdr; 4970 4971 err_free_coherent: 4972 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4973 dmabuf->virt, dmabuf->phys); 4974 err_free_dmabuf: 4975 kfree(dmabuf); 4976 return NULL; 4977 } 4978 4979 /** 4980 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4981 * @phba: pointer to lpfc hba data structure. 4982 * 4983 * This routine is invoked to remove all memory resources allocated 4984 * to support rpis. This routine presumes the caller has released all 4985 * rpis consumed by fabric or port logins and is prepared to have 4986 * the header pages removed. 4987 **/ 4988 void 4989 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4990 { 4991 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4992 4993 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4994 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4995 list_del(&rpi_hdr->list); 4996 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4997 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4998 kfree(rpi_hdr->dmabuf); 4999 kfree(rpi_hdr); 5000 } 5001 5002 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5003 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 5004 } 5005 5006 /** 5007 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5008 * @pdev: pointer to pci device data structure. 5009 * 5010 * This routine is invoked to allocate the driver hba data structure for an 5011 * HBA device. If the allocation is successful, the phba reference to the 5012 * PCI device data structure is set. 5013 * 5014 * Return codes 5015 * pointer to @phba - successful 5016 * NULL - error 5017 **/ 5018 static struct lpfc_hba * 5019 lpfc_hba_alloc(struct pci_dev *pdev) 5020 { 5021 struct lpfc_hba *phba; 5022 5023 /* Allocate memory for HBA structure */ 5024 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5025 if (!phba) { 5026 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5027 return NULL; 5028 } 5029 5030 /* Set reference to PCI device in HBA structure */ 5031 phba->pcidev = pdev; 5032 5033 /* Assign an unused board number */ 5034 phba->brd_no = lpfc_get_instance(); 5035 if (phba->brd_no < 0) { 5036 kfree(phba); 5037 return NULL; 5038 } 5039 5040 spin_lock_init(&phba->ct_ev_lock); 5041 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5042 5043 return phba; 5044 } 5045 5046 /** 5047 * lpfc_hba_free - Free driver hba data structure with a device. 5048 * @phba: pointer to lpfc hba data structure. 5049 * 5050 * This routine is invoked to free the driver hba data structure with an 5051 * HBA device. 5052 **/ 5053 static void 5054 lpfc_hba_free(struct lpfc_hba *phba) 5055 { 5056 /* Release the driver assigned board number */ 5057 idr_remove(&lpfc_hba_index, phba->brd_no); 5058 5059 kfree(phba); 5060 return; 5061 } 5062 5063 /** 5064 * lpfc_create_shost - Create hba physical port with associated scsi host. 5065 * @phba: pointer to lpfc hba data structure. 5066 * 5067 * This routine is invoked to create HBA physical port and associate a SCSI 5068 * host with it. 5069 * 5070 * Return codes 5071 * 0 - successful 5072 * other values - error 5073 **/ 5074 static int 5075 lpfc_create_shost(struct lpfc_hba *phba) 5076 { 5077 struct lpfc_vport *vport; 5078 struct Scsi_Host *shost; 5079 5080 /* Initialize HBA FC structure */ 5081 phba->fc_edtov = FF_DEF_EDTOV; 5082 phba->fc_ratov = FF_DEF_RATOV; 5083 phba->fc_altov = FF_DEF_ALTOV; 5084 phba->fc_arbtov = FF_DEF_ARBTOV; 5085 5086 atomic_set(&phba->sdev_cnt, 0); 5087 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5088 if (!vport) 5089 return -ENODEV; 5090 5091 shost = lpfc_shost_from_vport(vport); 5092 phba->pport = vport; 5093 lpfc_debugfs_initialize(vport); 5094 /* Put reference to SCSI host to driver's device private data */ 5095 pci_set_drvdata(phba->pcidev, shost); 5096 5097 return 0; 5098 } 5099 5100 /** 5101 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5102 * @phba: pointer to lpfc hba data structure. 5103 * 5104 * This routine is invoked to destroy HBA physical port and the associated 5105 * SCSI host. 5106 **/ 5107 static void 5108 lpfc_destroy_shost(struct lpfc_hba *phba) 5109 { 5110 struct lpfc_vport *vport = phba->pport; 5111 5112 /* Destroy physical port that associated with the SCSI host */ 5113 destroy_port(vport); 5114 5115 return; 5116 } 5117 5118 /** 5119 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5120 * @phba: pointer to lpfc hba data structure. 5121 * @shost: the shost to be used to detect Block guard settings. 5122 * 5123 * This routine sets up the local Block guard protocol settings for @shost. 5124 * This routine also allocates memory for debugging bg buffers. 5125 **/ 5126 static void 5127 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5128 { 5129 int pagecnt = 10; 5130 if (lpfc_prot_mask && lpfc_prot_guard) { 5131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5132 "1478 Registering BlockGuard with the " 5133 "SCSI layer\n"); 5134 scsi_host_set_prot(shost, lpfc_prot_mask); 5135 scsi_host_set_guard(shost, lpfc_prot_guard); 5136 } 5137 if (!_dump_buf_data) { 5138 while (pagecnt) { 5139 spin_lock_init(&_dump_buf_lock); 5140 _dump_buf_data = 5141 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5142 if (_dump_buf_data) { 5143 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5144 "9043 BLKGRD: allocated %d pages for " 5145 "_dump_buf_data at 0x%p\n", 5146 (1 << pagecnt), _dump_buf_data); 5147 _dump_buf_data_order = pagecnt; 5148 memset(_dump_buf_data, 0, 5149 ((1 << PAGE_SHIFT) << pagecnt)); 5150 break; 5151 } else 5152 --pagecnt; 5153 } 5154 if (!_dump_buf_data_order) 5155 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5156 "9044 BLKGRD: ERROR unable to allocate " 5157 "memory for hexdump\n"); 5158 } else 5159 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5160 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5161 "\n", _dump_buf_data); 5162 if (!_dump_buf_dif) { 5163 while (pagecnt) { 5164 _dump_buf_dif = 5165 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5166 if (_dump_buf_dif) { 5167 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5168 "9046 BLKGRD: allocated %d pages for " 5169 "_dump_buf_dif at 0x%p\n", 5170 (1 << pagecnt), _dump_buf_dif); 5171 _dump_buf_dif_order = pagecnt; 5172 memset(_dump_buf_dif, 0, 5173 ((1 << PAGE_SHIFT) << pagecnt)); 5174 break; 5175 } else 5176 --pagecnt; 5177 } 5178 if (!_dump_buf_dif_order) 5179 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5180 "9047 BLKGRD: ERROR unable to allocate " 5181 "memory for hexdump\n"); 5182 } else 5183 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5184 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5185 _dump_buf_dif); 5186 } 5187 5188 /** 5189 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5190 * @phba: pointer to lpfc hba data structure. 5191 * 5192 * This routine is invoked to perform all the necessary post initialization 5193 * setup for the device. 5194 **/ 5195 static void 5196 lpfc_post_init_setup(struct lpfc_hba *phba) 5197 { 5198 struct Scsi_Host *shost; 5199 struct lpfc_adapter_event_header adapter_event; 5200 5201 /* Get the default values for Model Name and Description */ 5202 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5203 5204 /* 5205 * hba setup may have changed the hba_queue_depth so we need to 5206 * adjust the value of can_queue. 5207 */ 5208 shost = pci_get_drvdata(phba->pcidev); 5209 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5210 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5211 lpfc_setup_bg(phba, shost); 5212 5213 lpfc_host_attrib_init(shost); 5214 5215 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5216 spin_lock_irq(shost->host_lock); 5217 lpfc_poll_start_timer(phba); 5218 spin_unlock_irq(shost->host_lock); 5219 } 5220 5221 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5222 "0428 Perform SCSI scan\n"); 5223 /* Send board arrival event to upper layer */ 5224 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5225 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5226 fc_host_post_vendor_event(shost, fc_get_event_number(), 5227 sizeof(adapter_event), 5228 (char *) &adapter_event, 5229 LPFC_NL_VENDOR_ID); 5230 return; 5231 } 5232 5233 /** 5234 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5235 * @phba: pointer to lpfc hba data structure. 5236 * 5237 * This routine is invoked to set up the PCI device memory space for device 5238 * with SLI-3 interface spec. 5239 * 5240 * Return codes 5241 * 0 - successful 5242 * other values - error 5243 **/ 5244 static int 5245 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5246 { 5247 struct pci_dev *pdev; 5248 unsigned long bar0map_len, bar2map_len; 5249 int i, hbq_count; 5250 void *ptr; 5251 int error = -ENODEV; 5252 5253 /* Obtain PCI device reference */ 5254 if (!phba->pcidev) 5255 return error; 5256 else 5257 pdev = phba->pcidev; 5258 5259 /* Set the device DMA mask size */ 5260 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5261 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5262 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5263 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5264 return error; 5265 } 5266 } 5267 5268 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5269 * required by each mapping. 5270 */ 5271 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5272 bar0map_len = pci_resource_len(pdev, 0); 5273 5274 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5275 bar2map_len = pci_resource_len(pdev, 2); 5276 5277 /* Map HBA SLIM to a kernel virtual address. */ 5278 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5279 if (!phba->slim_memmap_p) { 5280 dev_printk(KERN_ERR, &pdev->dev, 5281 "ioremap failed for SLIM memory.\n"); 5282 goto out; 5283 } 5284 5285 /* Map HBA Control Registers to a kernel virtual address. */ 5286 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5287 if (!phba->ctrl_regs_memmap_p) { 5288 dev_printk(KERN_ERR, &pdev->dev, 5289 "ioremap failed for HBA control registers.\n"); 5290 goto out_iounmap_slim; 5291 } 5292 5293 /* Allocate memory for SLI-2 structures */ 5294 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5295 SLI2_SLIM_SIZE, 5296 &phba->slim2p.phys, 5297 GFP_KERNEL); 5298 if (!phba->slim2p.virt) 5299 goto out_iounmap; 5300 5301 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5302 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5303 phba->mbox_ext = (phba->slim2p.virt + 5304 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5305 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5306 phba->IOCBs = (phba->slim2p.virt + 5307 offsetof(struct lpfc_sli2_slim, IOCBs)); 5308 5309 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5310 lpfc_sli_hbq_size(), 5311 &phba->hbqslimp.phys, 5312 GFP_KERNEL); 5313 if (!phba->hbqslimp.virt) 5314 goto out_free_slim; 5315 5316 hbq_count = lpfc_sli_hbq_count(); 5317 ptr = phba->hbqslimp.virt; 5318 for (i = 0; i < hbq_count; ++i) { 5319 phba->hbqs[i].hbq_virt = ptr; 5320 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5321 ptr += (lpfc_hbq_defs[i]->entry_count * 5322 sizeof(struct lpfc_hbq_entry)); 5323 } 5324 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5325 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5326 5327 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5328 5329 INIT_LIST_HEAD(&phba->rb_pend_list); 5330 5331 phba->MBslimaddr = phba->slim_memmap_p; 5332 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5333 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5334 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5335 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5336 5337 return 0; 5338 5339 out_free_slim: 5340 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5341 phba->slim2p.virt, phba->slim2p.phys); 5342 out_iounmap: 5343 iounmap(phba->ctrl_regs_memmap_p); 5344 out_iounmap_slim: 5345 iounmap(phba->slim_memmap_p); 5346 out: 5347 return error; 5348 } 5349 5350 /** 5351 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5352 * @phba: pointer to lpfc hba data structure. 5353 * 5354 * This routine is invoked to unset the PCI device memory space for device 5355 * with SLI-3 interface spec. 5356 **/ 5357 static void 5358 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5359 { 5360 struct pci_dev *pdev; 5361 5362 /* Obtain PCI device reference */ 5363 if (!phba->pcidev) 5364 return; 5365 else 5366 pdev = phba->pcidev; 5367 5368 /* Free coherent DMA memory allocated */ 5369 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5370 phba->hbqslimp.virt, phba->hbqslimp.phys); 5371 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5372 phba->slim2p.virt, phba->slim2p.phys); 5373 5374 /* I/O memory unmap */ 5375 iounmap(phba->ctrl_regs_memmap_p); 5376 iounmap(phba->slim_memmap_p); 5377 5378 return; 5379 } 5380 5381 /** 5382 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5383 * @phba: pointer to lpfc hba data structure. 5384 * 5385 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5386 * done and check status. 5387 * 5388 * Return 0 if successful, otherwise -ENODEV. 5389 **/ 5390 int 5391 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5392 { 5393 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5394 struct lpfc_register reg_data; 5395 int i, port_error = 0; 5396 uint32_t if_type; 5397 5398 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5399 memset(®_data, 0, sizeof(reg_data)); 5400 if (!phba->sli4_hba.PSMPHRregaddr) 5401 return -ENODEV; 5402 5403 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5404 for (i = 0; i < 3000; i++) { 5405 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5406 &portsmphr_reg.word0) || 5407 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5408 /* Port has a fatal POST error, break out */ 5409 port_error = -ENODEV; 5410 break; 5411 } 5412 if (LPFC_POST_STAGE_PORT_READY == 5413 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5414 break; 5415 msleep(10); 5416 } 5417 5418 /* 5419 * If there was a port error during POST, then don't proceed with 5420 * other register reads as the data may not be valid. Just exit. 5421 */ 5422 if (port_error) { 5423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5424 "1408 Port Failed POST - portsmphr=0x%x, " 5425 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5426 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5427 portsmphr_reg.word0, 5428 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5429 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5430 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5431 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5432 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5433 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5434 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5435 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5436 } else { 5437 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5438 "2534 Device Info: SLIFamily=0x%x, " 5439 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5440 "SLIHint_2=0x%x, FT=0x%x\n", 5441 bf_get(lpfc_sli_intf_sli_family, 5442 &phba->sli4_hba.sli_intf), 5443 bf_get(lpfc_sli_intf_slirev, 5444 &phba->sli4_hba.sli_intf), 5445 bf_get(lpfc_sli_intf_if_type, 5446 &phba->sli4_hba.sli_intf), 5447 bf_get(lpfc_sli_intf_sli_hint1, 5448 &phba->sli4_hba.sli_intf), 5449 bf_get(lpfc_sli_intf_sli_hint2, 5450 &phba->sli4_hba.sli_intf), 5451 bf_get(lpfc_sli_intf_func_type, 5452 &phba->sli4_hba.sli_intf)); 5453 /* 5454 * Check for other Port errors during the initialization 5455 * process. Fail the load if the port did not come up 5456 * correctly. 5457 */ 5458 if_type = bf_get(lpfc_sli_intf_if_type, 5459 &phba->sli4_hba.sli_intf); 5460 switch (if_type) { 5461 case LPFC_SLI_INTF_IF_TYPE_0: 5462 phba->sli4_hba.ue_mask_lo = 5463 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5464 phba->sli4_hba.ue_mask_hi = 5465 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5466 uerrlo_reg.word0 = 5467 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5468 uerrhi_reg.word0 = 5469 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5470 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5471 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5473 "1422 Unrecoverable Error " 5474 "Detected during POST " 5475 "uerr_lo_reg=0x%x, " 5476 "uerr_hi_reg=0x%x, " 5477 "ue_mask_lo_reg=0x%x, " 5478 "ue_mask_hi_reg=0x%x\n", 5479 uerrlo_reg.word0, 5480 uerrhi_reg.word0, 5481 phba->sli4_hba.ue_mask_lo, 5482 phba->sli4_hba.ue_mask_hi); 5483 port_error = -ENODEV; 5484 } 5485 break; 5486 case LPFC_SLI_INTF_IF_TYPE_2: 5487 /* Final checks. The port status should be clean. */ 5488 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5489 ®_data.word0) || 5490 bf_get(lpfc_sliport_status_err, ®_data)) { 5491 phba->work_status[0] = 5492 readl(phba->sli4_hba.u.if_type2. 5493 ERR1regaddr); 5494 phba->work_status[1] = 5495 readl(phba->sli4_hba.u.if_type2. 5496 ERR2regaddr); 5497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5498 "2888 Port Error Detected " 5499 "during POST: " 5500 "port status reg 0x%x, " 5501 "port_smphr reg 0x%x, " 5502 "error 1=0x%x, error 2=0x%x\n", 5503 reg_data.word0, 5504 portsmphr_reg.word0, 5505 phba->work_status[0], 5506 phba->work_status[1]); 5507 port_error = -ENODEV; 5508 } 5509 break; 5510 case LPFC_SLI_INTF_IF_TYPE_1: 5511 default: 5512 break; 5513 } 5514 } 5515 return port_error; 5516 } 5517 5518 /** 5519 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5520 * @phba: pointer to lpfc hba data structure. 5521 * @if_type: The SLI4 interface type getting configured. 5522 * 5523 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5524 * memory map. 5525 **/ 5526 static void 5527 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5528 { 5529 switch (if_type) { 5530 case LPFC_SLI_INTF_IF_TYPE_0: 5531 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5532 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5533 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5534 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5535 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5536 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5537 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5538 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5539 phba->sli4_hba.SLIINTFregaddr = 5540 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5541 break; 5542 case LPFC_SLI_INTF_IF_TYPE_2: 5543 phba->sli4_hba.u.if_type2.ERR1regaddr = 5544 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1; 5545 phba->sli4_hba.u.if_type2.ERR2regaddr = 5546 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2; 5547 phba->sli4_hba.u.if_type2.CTRLregaddr = 5548 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL; 5549 phba->sli4_hba.u.if_type2.STATUSregaddr = 5550 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS; 5551 phba->sli4_hba.SLIINTFregaddr = 5552 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5553 phba->sli4_hba.PSMPHRregaddr = 5554 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR; 5555 phba->sli4_hba.RQDBregaddr = 5556 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5557 phba->sli4_hba.WQDBregaddr = 5558 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5559 phba->sli4_hba.EQCQDBregaddr = 5560 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5561 phba->sli4_hba.MQDBregaddr = 5562 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5563 phba->sli4_hba.BMBXregaddr = 5564 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5565 break; 5566 case LPFC_SLI_INTF_IF_TYPE_1: 5567 default: 5568 dev_printk(KERN_ERR, &phba->pcidev->dev, 5569 "FATAL - unsupported SLI4 interface type - %d\n", 5570 if_type); 5571 break; 5572 } 5573 } 5574 5575 /** 5576 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5577 * @phba: pointer to lpfc hba data structure. 5578 * 5579 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5580 * memory map. 5581 **/ 5582 static void 5583 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5584 { 5585 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5586 LPFC_SLIPORT_IF0_SMPHR; 5587 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5588 LPFC_HST_ISR0; 5589 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5590 LPFC_HST_IMR0; 5591 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5592 LPFC_HST_ISCR0; 5593 } 5594 5595 /** 5596 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5597 * @phba: pointer to lpfc hba data structure. 5598 * @vf: virtual function number 5599 * 5600 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5601 * based on the given viftual function number, @vf. 5602 * 5603 * Return 0 if successful, otherwise -ENODEV. 5604 **/ 5605 static int 5606 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5607 { 5608 if (vf > LPFC_VIR_FUNC_MAX) 5609 return -ENODEV; 5610 5611 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5612 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5613 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5614 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5615 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5616 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5617 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5618 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5619 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5620 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5621 return 0; 5622 } 5623 5624 /** 5625 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5626 * @phba: pointer to lpfc hba data structure. 5627 * 5628 * This routine is invoked to create the bootstrap mailbox 5629 * region consistent with the SLI-4 interface spec. This 5630 * routine allocates all memory necessary to communicate 5631 * mailbox commands to the port and sets up all alignment 5632 * needs. No locks are expected to be held when calling 5633 * this routine. 5634 * 5635 * Return codes 5636 * 0 - successful 5637 * -ENOMEM - could not allocated memory. 5638 **/ 5639 static int 5640 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5641 { 5642 uint32_t bmbx_size; 5643 struct lpfc_dmabuf *dmabuf; 5644 struct dma_address *dma_address; 5645 uint32_t pa_addr; 5646 uint64_t phys_addr; 5647 5648 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5649 if (!dmabuf) 5650 return -ENOMEM; 5651 5652 /* 5653 * The bootstrap mailbox region is comprised of 2 parts 5654 * plus an alignment restriction of 16 bytes. 5655 */ 5656 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5657 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5658 bmbx_size, 5659 &dmabuf->phys, 5660 GFP_KERNEL); 5661 if (!dmabuf->virt) { 5662 kfree(dmabuf); 5663 return -ENOMEM; 5664 } 5665 memset(dmabuf->virt, 0, bmbx_size); 5666 5667 /* 5668 * Initialize the bootstrap mailbox pointers now so that the register 5669 * operations are simple later. The mailbox dma address is required 5670 * to be 16-byte aligned. Also align the virtual memory as each 5671 * maibox is copied into the bmbx mailbox region before issuing the 5672 * command to the port. 5673 */ 5674 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5675 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5676 5677 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5678 LPFC_ALIGN_16_BYTE); 5679 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5680 LPFC_ALIGN_16_BYTE); 5681 5682 /* 5683 * Set the high and low physical addresses now. The SLI4 alignment 5684 * requirement is 16 bytes and the mailbox is posted to the port 5685 * as two 30-bit addresses. The other data is a bit marking whether 5686 * the 30-bit address is the high or low address. 5687 * Upcast bmbx aphys to 64bits so shift instruction compiles 5688 * clean on 32 bit machines. 5689 */ 5690 dma_address = &phba->sli4_hba.bmbx.dma_address; 5691 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5692 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5693 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5694 LPFC_BMBX_BIT1_ADDR_HI); 5695 5696 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5697 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5698 LPFC_BMBX_BIT1_ADDR_LO); 5699 return 0; 5700 } 5701 5702 /** 5703 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5704 * @phba: pointer to lpfc hba data structure. 5705 * 5706 * This routine is invoked to teardown the bootstrap mailbox 5707 * region and release all host resources. This routine requires 5708 * the caller to ensure all mailbox commands recovered, no 5709 * additional mailbox comands are sent, and interrupts are disabled 5710 * before calling this routine. 5711 * 5712 **/ 5713 static void 5714 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5715 { 5716 dma_free_coherent(&phba->pcidev->dev, 5717 phba->sli4_hba.bmbx.bmbx_size, 5718 phba->sli4_hba.bmbx.dmabuf->virt, 5719 phba->sli4_hba.bmbx.dmabuf->phys); 5720 5721 kfree(phba->sli4_hba.bmbx.dmabuf); 5722 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5723 } 5724 5725 /** 5726 * lpfc_sli4_read_config - Get the config parameters. 5727 * @phba: pointer to lpfc hba data structure. 5728 * 5729 * This routine is invoked to read the configuration parameters from the HBA. 5730 * The configuration parameters are used to set the base and maximum values 5731 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5732 * allocation for the port. 5733 * 5734 * Return codes 5735 * 0 - successful 5736 * -ENOMEM - No available memory 5737 * -EIO - The mailbox failed to complete successfully. 5738 **/ 5739 static int 5740 lpfc_sli4_read_config(struct lpfc_hba *phba) 5741 { 5742 LPFC_MBOXQ_t *pmb; 5743 struct lpfc_mbx_read_config *rd_config; 5744 uint32_t rc = 0; 5745 5746 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5747 if (!pmb) { 5748 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5749 "2011 Unable to allocate memory for issuing " 5750 "SLI_CONFIG_SPECIAL mailbox command\n"); 5751 return -ENOMEM; 5752 } 5753 5754 lpfc_read_config(phba, pmb); 5755 5756 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5757 if (rc != MBX_SUCCESS) { 5758 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5759 "2012 Mailbox failed , mbxCmd x%x " 5760 "READ_CONFIG, mbxStatus x%x\n", 5761 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5762 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5763 rc = -EIO; 5764 } else { 5765 rd_config = &pmb->u.mqe.un.rd_config; 5766 phba->sli4_hba.max_cfg_param.max_xri = 5767 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5768 phba->sli4_hba.max_cfg_param.xri_base = 5769 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5770 phba->sli4_hba.max_cfg_param.max_vpi = 5771 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5772 phba->sli4_hba.max_cfg_param.vpi_base = 5773 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5774 phba->sli4_hba.max_cfg_param.max_rpi = 5775 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5776 phba->sli4_hba.max_cfg_param.rpi_base = 5777 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5778 phba->sli4_hba.max_cfg_param.max_vfi = 5779 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5780 phba->sli4_hba.max_cfg_param.vfi_base = 5781 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5782 phba->sli4_hba.max_cfg_param.max_fcfi = 5783 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5784 phba->sli4_hba.max_cfg_param.fcfi_base = 5785 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 5786 phba->sli4_hba.max_cfg_param.max_eq = 5787 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5788 phba->sli4_hba.max_cfg_param.max_rq = 5789 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5790 phba->sli4_hba.max_cfg_param.max_wq = 5791 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5792 phba->sli4_hba.max_cfg_param.max_cq = 5793 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5794 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5795 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5796 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5797 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5798 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5799 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5800 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5801 phba->max_vports = phba->max_vpi; 5802 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5803 "2003 cfg params XRI(B:%d M:%d), " 5804 "VPI(B:%d M:%d) " 5805 "VFI(B:%d M:%d) " 5806 "RPI(B:%d M:%d) " 5807 "FCFI(B:%d M:%d)\n", 5808 phba->sli4_hba.max_cfg_param.xri_base, 5809 phba->sli4_hba.max_cfg_param.max_xri, 5810 phba->sli4_hba.max_cfg_param.vpi_base, 5811 phba->sli4_hba.max_cfg_param.max_vpi, 5812 phba->sli4_hba.max_cfg_param.vfi_base, 5813 phba->sli4_hba.max_cfg_param.max_vfi, 5814 phba->sli4_hba.max_cfg_param.rpi_base, 5815 phba->sli4_hba.max_cfg_param.max_rpi, 5816 phba->sli4_hba.max_cfg_param.fcfi_base, 5817 phba->sli4_hba.max_cfg_param.max_fcfi); 5818 } 5819 mempool_free(pmb, phba->mbox_mem_pool); 5820 5821 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5822 if (phba->cfg_hba_queue_depth > 5823 (phba->sli4_hba.max_cfg_param.max_xri - 5824 lpfc_sli4_get_els_iocb_cnt(phba))) 5825 phba->cfg_hba_queue_depth = 5826 phba->sli4_hba.max_cfg_param.max_xri - 5827 lpfc_sli4_get_els_iocb_cnt(phba); 5828 return rc; 5829 } 5830 5831 /** 5832 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 5833 * @phba: pointer to lpfc hba data structure. 5834 * 5835 * This routine is invoked to setup the port-side endian order when 5836 * the port if_type is 0. This routine has no function for other 5837 * if_types. 5838 * 5839 * Return codes 5840 * 0 - successful 5841 * -ENOMEM - No available memory 5842 * -EIO - The mailbox failed to complete successfully. 5843 **/ 5844 static int 5845 lpfc_setup_endian_order(struct lpfc_hba *phba) 5846 { 5847 LPFC_MBOXQ_t *mboxq; 5848 uint32_t if_type, rc = 0; 5849 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 5850 HOST_ENDIAN_HIGH_WORD1}; 5851 5852 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 5853 switch (if_type) { 5854 case LPFC_SLI_INTF_IF_TYPE_0: 5855 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5856 GFP_KERNEL); 5857 if (!mboxq) { 5858 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5859 "0492 Unable to allocate memory for " 5860 "issuing SLI_CONFIG_SPECIAL mailbox " 5861 "command\n"); 5862 return -ENOMEM; 5863 } 5864 5865 /* 5866 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 5867 * two words to contain special data values and no other data. 5868 */ 5869 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 5870 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 5871 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5872 if (rc != MBX_SUCCESS) { 5873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5874 "0493 SLI_CONFIG_SPECIAL mailbox " 5875 "failed with status x%x\n", 5876 rc); 5877 rc = -EIO; 5878 } 5879 mempool_free(mboxq, phba->mbox_mem_pool); 5880 break; 5881 case LPFC_SLI_INTF_IF_TYPE_2: 5882 case LPFC_SLI_INTF_IF_TYPE_1: 5883 default: 5884 break; 5885 } 5886 return rc; 5887 } 5888 5889 /** 5890 * lpfc_sli4_queue_create - Create all the SLI4 queues 5891 * @phba: pointer to lpfc hba data structure. 5892 * 5893 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 5894 * operation. For each SLI4 queue type, the parameters such as queue entry 5895 * count (queue depth) shall be taken from the module parameter. For now, 5896 * we just use some constant number as place holder. 5897 * 5898 * Return codes 5899 * 0 - successful 5900 * -ENOMEM - No available memory 5901 * -EIO - The mailbox failed to complete successfully. 5902 **/ 5903 static int 5904 lpfc_sli4_queue_create(struct lpfc_hba *phba) 5905 { 5906 struct lpfc_queue *qdesc; 5907 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5908 int cfg_fcp_wq_count; 5909 int cfg_fcp_eq_count; 5910 5911 /* 5912 * Sanity check for confiugred queue parameters against the run-time 5913 * device parameters 5914 */ 5915 5916 /* Sanity check on FCP fast-path WQ parameters */ 5917 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 5918 if (cfg_fcp_wq_count > 5919 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 5920 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 5921 LPFC_SP_WQN_DEF; 5922 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 5923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5924 "2581 Not enough WQs (%d) from " 5925 "the pci function for supporting " 5926 "FCP WQs (%d)\n", 5927 phba->sli4_hba.max_cfg_param.max_wq, 5928 phba->cfg_fcp_wq_count); 5929 goto out_error; 5930 } 5931 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5932 "2582 Not enough WQs (%d) from the pci " 5933 "function for supporting the requested " 5934 "FCP WQs (%d), the actual FCP WQs can " 5935 "be supported: %d\n", 5936 phba->sli4_hba.max_cfg_param.max_wq, 5937 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 5938 } 5939 /* The actual number of FCP work queues adopted */ 5940 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 5941 5942 /* Sanity check on FCP fast-path EQ parameters */ 5943 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 5944 if (cfg_fcp_eq_count > 5945 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 5946 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 5947 LPFC_SP_EQN_DEF; 5948 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 5949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5950 "2574 Not enough EQs (%d) from the " 5951 "pci function for supporting FCP " 5952 "EQs (%d)\n", 5953 phba->sli4_hba.max_cfg_param.max_eq, 5954 phba->cfg_fcp_eq_count); 5955 goto out_error; 5956 } 5957 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5958 "2575 Not enough EQs (%d) from the pci " 5959 "function for supporting the requested " 5960 "FCP EQs (%d), the actual FCP EQs can " 5961 "be supported: %d\n", 5962 phba->sli4_hba.max_cfg_param.max_eq, 5963 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 5964 } 5965 /* It does not make sense to have more EQs than WQs */ 5966 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 5967 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5968 "2593 The FCP EQ count(%d) cannot be greater " 5969 "than the FCP WQ count(%d), limiting the " 5970 "FCP EQ count to %d\n", cfg_fcp_eq_count, 5971 phba->cfg_fcp_wq_count, 5972 phba->cfg_fcp_wq_count); 5973 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 5974 } 5975 /* The actual number of FCP event queues adopted */ 5976 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 5977 /* The overall number of event queues used */ 5978 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 5979 5980 /* 5981 * Create Event Queues (EQs) 5982 */ 5983 5984 /* Get EQ depth from module parameter, fake the default for now */ 5985 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5986 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5987 5988 /* Create slow path event queue */ 5989 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5990 phba->sli4_hba.eq_ecount); 5991 if (!qdesc) { 5992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5993 "0496 Failed allocate slow-path EQ\n"); 5994 goto out_error; 5995 } 5996 phba->sli4_hba.sp_eq = qdesc; 5997 5998 /* Create fast-path FCP Event Queue(s) */ 5999 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6000 phba->cfg_fcp_eq_count), GFP_KERNEL); 6001 if (!phba->sli4_hba.fp_eq) { 6002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6003 "2576 Failed allocate memory for fast-path " 6004 "EQ record array\n"); 6005 goto out_free_sp_eq; 6006 } 6007 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6008 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6009 phba->sli4_hba.eq_ecount); 6010 if (!qdesc) { 6011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6012 "0497 Failed allocate fast-path EQ\n"); 6013 goto out_free_fp_eq; 6014 } 6015 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6016 } 6017 6018 /* 6019 * Create Complete Queues (CQs) 6020 */ 6021 6022 /* Get CQ depth from module parameter, fake the default for now */ 6023 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6024 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6025 6026 /* Create slow-path Mailbox Command Complete Queue */ 6027 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6028 phba->sli4_hba.cq_ecount); 6029 if (!qdesc) { 6030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6031 "0500 Failed allocate slow-path mailbox CQ\n"); 6032 goto out_free_fp_eq; 6033 } 6034 phba->sli4_hba.mbx_cq = qdesc; 6035 6036 /* Create slow-path ELS Complete Queue */ 6037 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6038 phba->sli4_hba.cq_ecount); 6039 if (!qdesc) { 6040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6041 "0501 Failed allocate slow-path ELS CQ\n"); 6042 goto out_free_mbx_cq; 6043 } 6044 phba->sli4_hba.els_cq = qdesc; 6045 6046 6047 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 6048 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6049 phba->cfg_fcp_eq_count), GFP_KERNEL); 6050 if (!phba->sli4_hba.fcp_cq) { 6051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6052 "2577 Failed allocate memory for fast-path " 6053 "CQ record array\n"); 6054 goto out_free_els_cq; 6055 } 6056 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6057 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6058 phba->sli4_hba.cq_ecount); 6059 if (!qdesc) { 6060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6061 "0499 Failed allocate fast-path FCP " 6062 "CQ (%d)\n", fcp_cqidx); 6063 goto out_free_fcp_cq; 6064 } 6065 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6066 } 6067 6068 /* Create Mailbox Command Queue */ 6069 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6070 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6071 6072 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6073 phba->sli4_hba.mq_ecount); 6074 if (!qdesc) { 6075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6076 "0505 Failed allocate slow-path MQ\n"); 6077 goto out_free_fcp_cq; 6078 } 6079 phba->sli4_hba.mbx_wq = qdesc; 6080 6081 /* 6082 * Create all the Work Queues (WQs) 6083 */ 6084 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6085 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6086 6087 /* Create slow-path ELS Work Queue */ 6088 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6089 phba->sli4_hba.wq_ecount); 6090 if (!qdesc) { 6091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6092 "0504 Failed allocate slow-path ELS WQ\n"); 6093 goto out_free_mbx_wq; 6094 } 6095 phba->sli4_hba.els_wq = qdesc; 6096 6097 /* Create fast-path FCP Work Queue(s) */ 6098 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6099 phba->cfg_fcp_wq_count), GFP_KERNEL); 6100 if (!phba->sli4_hba.fcp_wq) { 6101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6102 "2578 Failed allocate memory for fast-path " 6103 "WQ record array\n"); 6104 goto out_free_els_wq; 6105 } 6106 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6107 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6108 phba->sli4_hba.wq_ecount); 6109 if (!qdesc) { 6110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6111 "0503 Failed allocate fast-path FCP " 6112 "WQ (%d)\n", fcp_wqidx); 6113 goto out_free_fcp_wq; 6114 } 6115 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6116 } 6117 6118 /* 6119 * Create Receive Queue (RQ) 6120 */ 6121 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6122 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6123 6124 /* Create Receive Queue for header */ 6125 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6126 phba->sli4_hba.rq_ecount); 6127 if (!qdesc) { 6128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6129 "0506 Failed allocate receive HRQ\n"); 6130 goto out_free_fcp_wq; 6131 } 6132 phba->sli4_hba.hdr_rq = qdesc; 6133 6134 /* Create Receive Queue for data */ 6135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6136 phba->sli4_hba.rq_ecount); 6137 if (!qdesc) { 6138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6139 "0507 Failed allocate receive DRQ\n"); 6140 goto out_free_hdr_rq; 6141 } 6142 phba->sli4_hba.dat_rq = qdesc; 6143 6144 return 0; 6145 6146 out_free_hdr_rq: 6147 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6148 phba->sli4_hba.hdr_rq = NULL; 6149 out_free_fcp_wq: 6150 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6151 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6152 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6153 } 6154 kfree(phba->sli4_hba.fcp_wq); 6155 out_free_els_wq: 6156 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6157 phba->sli4_hba.els_wq = NULL; 6158 out_free_mbx_wq: 6159 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6160 phba->sli4_hba.mbx_wq = NULL; 6161 out_free_fcp_cq: 6162 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6163 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6164 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6165 } 6166 kfree(phba->sli4_hba.fcp_cq); 6167 out_free_els_cq: 6168 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6169 phba->sli4_hba.els_cq = NULL; 6170 out_free_mbx_cq: 6171 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6172 phba->sli4_hba.mbx_cq = NULL; 6173 out_free_fp_eq: 6174 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6175 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6176 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6177 } 6178 kfree(phba->sli4_hba.fp_eq); 6179 out_free_sp_eq: 6180 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6181 phba->sli4_hba.sp_eq = NULL; 6182 out_error: 6183 return -ENOMEM; 6184 } 6185 6186 /** 6187 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6188 * @phba: pointer to lpfc hba data structure. 6189 * 6190 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6191 * operation. 6192 * 6193 * Return codes 6194 * 0 - successful 6195 * -ENOMEM - No available memory 6196 * -EIO - The mailbox failed to complete successfully. 6197 **/ 6198 static void 6199 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6200 { 6201 int fcp_qidx; 6202 6203 /* Release mailbox command work queue */ 6204 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6205 phba->sli4_hba.mbx_wq = NULL; 6206 6207 /* Release ELS work queue */ 6208 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6209 phba->sli4_hba.els_wq = NULL; 6210 6211 /* Release FCP work queue */ 6212 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6213 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6214 kfree(phba->sli4_hba.fcp_wq); 6215 phba->sli4_hba.fcp_wq = NULL; 6216 6217 /* Release unsolicited receive queue */ 6218 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6219 phba->sli4_hba.hdr_rq = NULL; 6220 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6221 phba->sli4_hba.dat_rq = NULL; 6222 6223 /* Release ELS complete queue */ 6224 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6225 phba->sli4_hba.els_cq = NULL; 6226 6227 /* Release mailbox command complete queue */ 6228 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6229 phba->sli4_hba.mbx_cq = NULL; 6230 6231 /* Release FCP response complete queue */ 6232 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6233 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6234 kfree(phba->sli4_hba.fcp_cq); 6235 phba->sli4_hba.fcp_cq = NULL; 6236 6237 /* Release fast-path event queue */ 6238 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6239 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6240 kfree(phba->sli4_hba.fp_eq); 6241 phba->sli4_hba.fp_eq = NULL; 6242 6243 /* Release slow-path event queue */ 6244 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6245 phba->sli4_hba.sp_eq = NULL; 6246 6247 return; 6248 } 6249 6250 /** 6251 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6252 * @phba: pointer to lpfc hba data structure. 6253 * 6254 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6255 * operation. 6256 * 6257 * Return codes 6258 * 0 - successful 6259 * -ENOMEM - No available memory 6260 * -EIO - The mailbox failed to complete successfully. 6261 **/ 6262 int 6263 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6264 { 6265 int rc = -ENOMEM; 6266 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6267 int fcp_cq_index = 0; 6268 6269 /* 6270 * Set up Event Queues (EQs) 6271 */ 6272 6273 /* Set up slow-path event queue */ 6274 if (!phba->sli4_hba.sp_eq) { 6275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6276 "0520 Slow-path EQ not allocated\n"); 6277 goto out_error; 6278 } 6279 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6280 LPFC_SP_DEF_IMAX); 6281 if (rc) { 6282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6283 "0521 Failed setup of slow-path EQ: " 6284 "rc = 0x%x\n", rc); 6285 goto out_error; 6286 } 6287 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6288 "2583 Slow-path EQ setup: queue-id=%d\n", 6289 phba->sli4_hba.sp_eq->queue_id); 6290 6291 /* Set up fast-path event queue */ 6292 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6293 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6295 "0522 Fast-path EQ (%d) not " 6296 "allocated\n", fcp_eqidx); 6297 goto out_destroy_fp_eq; 6298 } 6299 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6300 phba->cfg_fcp_imax); 6301 if (rc) { 6302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6303 "0523 Failed setup of fast-path EQ " 6304 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6305 goto out_destroy_fp_eq; 6306 } 6307 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6308 "2584 Fast-path EQ setup: " 6309 "queue[%d]-id=%d\n", fcp_eqidx, 6310 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6311 } 6312 6313 /* 6314 * Set up Complete Queues (CQs) 6315 */ 6316 6317 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6318 if (!phba->sli4_hba.mbx_cq) { 6319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6320 "0528 Mailbox CQ not allocated\n"); 6321 goto out_destroy_fp_eq; 6322 } 6323 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6324 LPFC_MCQ, LPFC_MBOX); 6325 if (rc) { 6326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6327 "0529 Failed setup of slow-path mailbox CQ: " 6328 "rc = 0x%x\n", rc); 6329 goto out_destroy_fp_eq; 6330 } 6331 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6332 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6333 phba->sli4_hba.mbx_cq->queue_id, 6334 phba->sli4_hba.sp_eq->queue_id); 6335 6336 /* Set up slow-path ELS Complete Queue */ 6337 if (!phba->sli4_hba.els_cq) { 6338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6339 "0530 ELS CQ not allocated\n"); 6340 goto out_destroy_mbx_cq; 6341 } 6342 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6343 LPFC_WCQ, LPFC_ELS); 6344 if (rc) { 6345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6346 "0531 Failed setup of slow-path ELS CQ: " 6347 "rc = 0x%x\n", rc); 6348 goto out_destroy_mbx_cq; 6349 } 6350 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6351 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6352 phba->sli4_hba.els_cq->queue_id, 6353 phba->sli4_hba.sp_eq->queue_id); 6354 6355 /* Set up fast-path FCP Response Complete Queue */ 6356 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6357 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6359 "0526 Fast-path FCP CQ (%d) not " 6360 "allocated\n", fcp_cqidx); 6361 goto out_destroy_fcp_cq; 6362 } 6363 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 6364 phba->sli4_hba.fp_eq[fcp_cqidx], 6365 LPFC_WCQ, LPFC_FCP); 6366 if (rc) { 6367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6368 "0527 Failed setup of fast-path FCP " 6369 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6370 goto out_destroy_fcp_cq; 6371 } 6372 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6373 "2588 FCP CQ setup: cq[%d]-id=%d, " 6374 "parent eq[%d]-id=%d\n", 6375 fcp_cqidx, 6376 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6377 fcp_cqidx, 6378 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 6379 } 6380 6381 /* 6382 * Set up all the Work Queues (WQs) 6383 */ 6384 6385 /* Set up Mailbox Command Queue */ 6386 if (!phba->sli4_hba.mbx_wq) { 6387 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6388 "0538 Slow-path MQ not allocated\n"); 6389 goto out_destroy_fcp_cq; 6390 } 6391 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6392 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6393 if (rc) { 6394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6395 "0539 Failed setup of slow-path MQ: " 6396 "rc = 0x%x\n", rc); 6397 goto out_destroy_fcp_cq; 6398 } 6399 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6400 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6401 phba->sli4_hba.mbx_wq->queue_id, 6402 phba->sli4_hba.mbx_cq->queue_id); 6403 6404 /* Set up slow-path ELS Work Queue */ 6405 if (!phba->sli4_hba.els_wq) { 6406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6407 "0536 Slow-path ELS WQ not allocated\n"); 6408 goto out_destroy_mbx_wq; 6409 } 6410 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6411 phba->sli4_hba.els_cq, LPFC_ELS); 6412 if (rc) { 6413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6414 "0537 Failed setup of slow-path ELS WQ: " 6415 "rc = 0x%x\n", rc); 6416 goto out_destroy_mbx_wq; 6417 } 6418 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6419 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6420 phba->sli4_hba.els_wq->queue_id, 6421 phba->sli4_hba.els_cq->queue_id); 6422 6423 /* Set up fast-path FCP Work Queue */ 6424 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6425 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6426 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6427 "0534 Fast-path FCP WQ (%d) not " 6428 "allocated\n", fcp_wqidx); 6429 goto out_destroy_fcp_wq; 6430 } 6431 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6432 phba->sli4_hba.fcp_cq[fcp_cq_index], 6433 LPFC_FCP); 6434 if (rc) { 6435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6436 "0535 Failed setup of fast-path FCP " 6437 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6438 goto out_destroy_fcp_wq; 6439 } 6440 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6441 "2591 FCP WQ setup: wq[%d]-id=%d, " 6442 "parent cq[%d]-id=%d\n", 6443 fcp_wqidx, 6444 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6445 fcp_cq_index, 6446 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6447 /* Round robin FCP Work Queue's Completion Queue assignment */ 6448 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 6449 } 6450 6451 /* 6452 * Create Receive Queue (RQ) 6453 */ 6454 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6456 "0540 Receive Queue not allocated\n"); 6457 goto out_destroy_fcp_wq; 6458 } 6459 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6460 phba->sli4_hba.els_cq, LPFC_USOL); 6461 if (rc) { 6462 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6463 "0541 Failed setup of Receive Queue: " 6464 "rc = 0x%x\n", rc); 6465 goto out_destroy_fcp_wq; 6466 } 6467 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6468 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6469 "parent cq-id=%d\n", 6470 phba->sli4_hba.hdr_rq->queue_id, 6471 phba->sli4_hba.dat_rq->queue_id, 6472 phba->sli4_hba.els_cq->queue_id); 6473 return 0; 6474 6475 out_destroy_fcp_wq: 6476 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6477 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6478 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6479 out_destroy_mbx_wq: 6480 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6481 out_destroy_fcp_cq: 6482 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6483 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6484 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6485 out_destroy_mbx_cq: 6486 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6487 out_destroy_fp_eq: 6488 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6489 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6490 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6491 out_error: 6492 return rc; 6493 } 6494 6495 /** 6496 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6497 * @phba: pointer to lpfc hba data structure. 6498 * 6499 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6500 * operation. 6501 * 6502 * Return codes 6503 * 0 - successful 6504 * -ENOMEM - No available memory 6505 * -EIO - The mailbox failed to complete successfully. 6506 **/ 6507 void 6508 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6509 { 6510 int fcp_qidx; 6511 6512 /* Unset mailbox command work queue */ 6513 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6514 /* Unset ELS work queue */ 6515 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6516 /* Unset unsolicited receive queue */ 6517 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6518 /* Unset FCP work queue */ 6519 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6520 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6521 /* Unset mailbox command complete queue */ 6522 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6523 /* Unset ELS complete queue */ 6524 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6525 /* Unset FCP response complete queue */ 6526 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6527 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6528 /* Unset fast-path event queue */ 6529 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6530 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6531 /* Unset slow-path event queue */ 6532 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6533 } 6534 6535 /** 6536 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6537 * @phba: pointer to lpfc hba data structure. 6538 * 6539 * This routine is invoked to allocate and set up a pool of completion queue 6540 * events. The body of the completion queue event is a completion queue entry 6541 * CQE. For now, this pool is used for the interrupt service routine to queue 6542 * the following HBA completion queue events for the worker thread to process: 6543 * - Mailbox asynchronous events 6544 * - Receive queue completion unsolicited events 6545 * Later, this can be used for all the slow-path events. 6546 * 6547 * Return codes 6548 * 0 - successful 6549 * -ENOMEM - No available memory 6550 **/ 6551 static int 6552 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6553 { 6554 struct lpfc_cq_event *cq_event; 6555 int i; 6556 6557 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6558 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6559 if (!cq_event) 6560 goto out_pool_create_fail; 6561 list_add_tail(&cq_event->list, 6562 &phba->sli4_hba.sp_cqe_event_pool); 6563 } 6564 return 0; 6565 6566 out_pool_create_fail: 6567 lpfc_sli4_cq_event_pool_destroy(phba); 6568 return -ENOMEM; 6569 } 6570 6571 /** 6572 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6573 * @phba: pointer to lpfc hba data structure. 6574 * 6575 * This routine is invoked to free the pool of completion queue events at 6576 * driver unload time. Note that, it is the responsibility of the driver 6577 * cleanup routine to free all the outstanding completion-queue events 6578 * allocated from this pool back into the pool before invoking this routine 6579 * to destroy the pool. 6580 **/ 6581 static void 6582 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6583 { 6584 struct lpfc_cq_event *cq_event, *next_cq_event; 6585 6586 list_for_each_entry_safe(cq_event, next_cq_event, 6587 &phba->sli4_hba.sp_cqe_event_pool, list) { 6588 list_del(&cq_event->list); 6589 kfree(cq_event); 6590 } 6591 } 6592 6593 /** 6594 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6595 * @phba: pointer to lpfc hba data structure. 6596 * 6597 * This routine is the lock free version of the API invoked to allocate a 6598 * completion-queue event from the free pool. 6599 * 6600 * Return: Pointer to the newly allocated completion-queue event if successful 6601 * NULL otherwise. 6602 **/ 6603 struct lpfc_cq_event * 6604 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6605 { 6606 struct lpfc_cq_event *cq_event = NULL; 6607 6608 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6609 struct lpfc_cq_event, list); 6610 return cq_event; 6611 } 6612 6613 /** 6614 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6615 * @phba: pointer to lpfc hba data structure. 6616 * 6617 * This routine is the lock version of the API invoked to allocate a 6618 * completion-queue event from the free pool. 6619 * 6620 * Return: Pointer to the newly allocated completion-queue event if successful 6621 * NULL otherwise. 6622 **/ 6623 struct lpfc_cq_event * 6624 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6625 { 6626 struct lpfc_cq_event *cq_event; 6627 unsigned long iflags; 6628 6629 spin_lock_irqsave(&phba->hbalock, iflags); 6630 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6631 spin_unlock_irqrestore(&phba->hbalock, iflags); 6632 return cq_event; 6633 } 6634 6635 /** 6636 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6637 * @phba: pointer to lpfc hba data structure. 6638 * @cq_event: pointer to the completion queue event to be freed. 6639 * 6640 * This routine is the lock free version of the API invoked to release a 6641 * completion-queue event back into the free pool. 6642 **/ 6643 void 6644 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6645 struct lpfc_cq_event *cq_event) 6646 { 6647 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6648 } 6649 6650 /** 6651 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6652 * @phba: pointer to lpfc hba data structure. 6653 * @cq_event: pointer to the completion queue event to be freed. 6654 * 6655 * This routine is the lock version of the API invoked to release a 6656 * completion-queue event back into the free pool. 6657 **/ 6658 void 6659 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6660 struct lpfc_cq_event *cq_event) 6661 { 6662 unsigned long iflags; 6663 spin_lock_irqsave(&phba->hbalock, iflags); 6664 __lpfc_sli4_cq_event_release(phba, cq_event); 6665 spin_unlock_irqrestore(&phba->hbalock, iflags); 6666 } 6667 6668 /** 6669 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6670 * @phba: pointer to lpfc hba data structure. 6671 * 6672 * This routine is to free all the pending completion-queue events to the 6673 * back into the free pool for device reset. 6674 **/ 6675 static void 6676 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6677 { 6678 LIST_HEAD(cqelist); 6679 struct lpfc_cq_event *cqe; 6680 unsigned long iflags; 6681 6682 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6683 spin_lock_irqsave(&phba->hbalock, iflags); 6684 /* Pending FCP XRI abort events */ 6685 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6686 &cqelist); 6687 /* Pending ELS XRI abort events */ 6688 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6689 &cqelist); 6690 /* Pending asynnc events */ 6691 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6692 &cqelist); 6693 spin_unlock_irqrestore(&phba->hbalock, iflags); 6694 6695 while (!list_empty(&cqelist)) { 6696 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6697 lpfc_sli4_cq_event_release(phba, cqe); 6698 } 6699 } 6700 6701 /** 6702 * lpfc_pci_function_reset - Reset pci function. 6703 * @phba: pointer to lpfc hba data structure. 6704 * 6705 * This routine is invoked to request a PCI function reset. It will destroys 6706 * all resources assigned to the PCI function which originates this request. 6707 * 6708 * Return codes 6709 * 0 - successful 6710 * -ENOMEM - No available memory 6711 * -EIO - The mailbox failed to complete successfully. 6712 **/ 6713 int 6714 lpfc_pci_function_reset(struct lpfc_hba *phba) 6715 { 6716 LPFC_MBOXQ_t *mboxq; 6717 uint32_t rc = 0, if_type; 6718 uint32_t shdr_status, shdr_add_status; 6719 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 6720 union lpfc_sli4_cfg_shdr *shdr; 6721 struct lpfc_register reg_data; 6722 6723 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6724 switch (if_type) { 6725 case LPFC_SLI_INTF_IF_TYPE_0: 6726 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6727 GFP_KERNEL); 6728 if (!mboxq) { 6729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6730 "0494 Unable to allocate memory for " 6731 "issuing SLI_FUNCTION_RESET mailbox " 6732 "command\n"); 6733 return -ENOMEM; 6734 } 6735 6736 /* Setup PCI function reset mailbox-ioctl command */ 6737 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6738 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6739 LPFC_SLI4_MBX_EMBED); 6740 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6741 shdr = (union lpfc_sli4_cfg_shdr *) 6742 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6743 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6744 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6745 &shdr->response); 6746 if (rc != MBX_TIMEOUT) 6747 mempool_free(mboxq, phba->mbox_mem_pool); 6748 if (shdr_status || shdr_add_status || rc) { 6749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6750 "0495 SLI_FUNCTION_RESET mailbox " 6751 "failed with status x%x add_status x%x," 6752 " mbx status x%x\n", 6753 shdr_status, shdr_add_status, rc); 6754 rc = -ENXIO; 6755 } 6756 break; 6757 case LPFC_SLI_INTF_IF_TYPE_2: 6758 for (num_resets = 0; 6759 num_resets < MAX_IF_TYPE_2_RESETS; 6760 num_resets++) { 6761 reg_data.word0 = 0; 6762 bf_set(lpfc_sliport_ctrl_end, ®_data, 6763 LPFC_SLIPORT_LITTLE_ENDIAN); 6764 bf_set(lpfc_sliport_ctrl_ip, ®_data, 6765 LPFC_SLIPORT_INIT_PORT); 6766 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 6767 CTRLregaddr); 6768 6769 /* 6770 * Poll the Port Status Register and wait for RDY for 6771 * up to 10 seconds. If the port doesn't respond, treat 6772 * it as an error. If the port responds with RN, start 6773 * the loop again. 6774 */ 6775 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 6776 if (lpfc_readl(phba->sli4_hba.u.if_type2. 6777 STATUSregaddr, ®_data.word0)) { 6778 rc = -ENODEV; 6779 break; 6780 } 6781 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 6782 break; 6783 if (bf_get(lpfc_sliport_status_rn, ®_data)) { 6784 reset_again++; 6785 break; 6786 } 6787 msleep(10); 6788 } 6789 6790 /* 6791 * If the port responds to the init request with 6792 * reset needed, delay for a bit and restart the loop. 6793 */ 6794 if (reset_again) { 6795 msleep(10); 6796 reset_again = 0; 6797 continue; 6798 } 6799 6800 /* Detect any port errors. */ 6801 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6802 ®_data.word0)) { 6803 rc = -ENODEV; 6804 break; 6805 } 6806 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 6807 (rdy_chk >= 1000)) { 6808 phba->work_status[0] = readl( 6809 phba->sli4_hba.u.if_type2.ERR1regaddr); 6810 phba->work_status[1] = readl( 6811 phba->sli4_hba.u.if_type2.ERR2regaddr); 6812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6813 "2890 Port Error Detected " 6814 "during Port Reset: " 6815 "port status reg 0x%x, " 6816 "error 1=0x%x, error 2=0x%x\n", 6817 reg_data.word0, 6818 phba->work_status[0], 6819 phba->work_status[1]); 6820 rc = -ENODEV; 6821 } 6822 6823 /* 6824 * Terminate the outer loop provided the Port indicated 6825 * ready within 10 seconds. 6826 */ 6827 if (rdy_chk < 1000) 6828 break; 6829 } 6830 break; 6831 case LPFC_SLI_INTF_IF_TYPE_1: 6832 default: 6833 break; 6834 } 6835 6836 /* Catch the not-ready port failure after a port reset. */ 6837 if (num_resets >= MAX_IF_TYPE_2_RESETS) 6838 rc = -ENODEV; 6839 6840 return rc; 6841 } 6842 6843 /** 6844 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 6845 * @phba: pointer to lpfc hba data structure. 6846 * @cnt: number of nop mailbox commands to send. 6847 * 6848 * This routine is invoked to send a number @cnt of NOP mailbox command and 6849 * wait for each command to complete. 6850 * 6851 * Return: the number of NOP mailbox command completed. 6852 **/ 6853 static int 6854 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 6855 { 6856 LPFC_MBOXQ_t *mboxq; 6857 int length, cmdsent; 6858 uint32_t mbox_tmo; 6859 uint32_t rc = 0; 6860 uint32_t shdr_status, shdr_add_status; 6861 union lpfc_sli4_cfg_shdr *shdr; 6862 6863 if (cnt == 0) { 6864 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6865 "2518 Requested to send 0 NOP mailbox cmd\n"); 6866 return cnt; 6867 } 6868 6869 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6870 if (!mboxq) { 6871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6872 "2519 Unable to allocate memory for issuing " 6873 "NOP mailbox command\n"); 6874 return 0; 6875 } 6876 6877 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 6878 length = (sizeof(struct lpfc_mbx_nop) - 6879 sizeof(struct lpfc_sli4_cfg_mhdr)); 6880 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6881 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 6882 6883 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 6884 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 6885 if (!phba->sli4_hba.intr_enable) 6886 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6887 else 6888 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 6889 if (rc == MBX_TIMEOUT) 6890 break; 6891 /* Check return status */ 6892 shdr = (union lpfc_sli4_cfg_shdr *) 6893 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6894 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6895 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6896 &shdr->response); 6897 if (shdr_status || shdr_add_status || rc) { 6898 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6899 "2520 NOP mailbox command failed " 6900 "status x%x add_status x%x mbx " 6901 "status x%x\n", shdr_status, 6902 shdr_add_status, rc); 6903 break; 6904 } 6905 } 6906 6907 if (rc != MBX_TIMEOUT) 6908 mempool_free(mboxq, phba->mbox_mem_pool); 6909 6910 return cmdsent; 6911 } 6912 6913 /** 6914 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 6915 * @phba: pointer to lpfc hba data structure. 6916 * 6917 * This routine is invoked to set up the PCI device memory space for device 6918 * with SLI-4 interface spec. 6919 * 6920 * Return codes 6921 * 0 - successful 6922 * other values - error 6923 **/ 6924 static int 6925 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 6926 { 6927 struct pci_dev *pdev; 6928 unsigned long bar0map_len, bar1map_len, bar2map_len; 6929 int error = -ENODEV; 6930 uint32_t if_type; 6931 6932 /* Obtain PCI device reference */ 6933 if (!phba->pcidev) 6934 return error; 6935 else 6936 pdev = phba->pcidev; 6937 6938 /* Set the device DMA mask size */ 6939 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6940 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6941 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6942 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6943 return error; 6944 } 6945 } 6946 6947 /* 6948 * The BARs and register set definitions and offset locations are 6949 * dependent on the if_type. 6950 */ 6951 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 6952 &phba->sli4_hba.sli_intf.word0)) { 6953 return error; 6954 } 6955 6956 /* There is no SLI3 failback for SLI4 devices. */ 6957 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 6958 LPFC_SLI_INTF_VALID) { 6959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6960 "2894 SLI_INTF reg contents invalid " 6961 "sli_intf reg 0x%x\n", 6962 phba->sli4_hba.sli_intf.word0); 6963 return error; 6964 } 6965 6966 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6967 /* 6968 * Get the bus address of SLI4 device Bar regions and the 6969 * number of bytes required by each mapping. The mapping of the 6970 * particular PCI BARs regions is dependent on the type of 6971 * SLI4 device. 6972 */ 6973 if (pci_resource_start(pdev, 0)) { 6974 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6975 bar0map_len = pci_resource_len(pdev, 0); 6976 6977 /* 6978 * Map SLI4 PCI Config Space Register base to a kernel virtual 6979 * addr 6980 */ 6981 phba->sli4_hba.conf_regs_memmap_p = 6982 ioremap(phba->pci_bar0_map, bar0map_len); 6983 if (!phba->sli4_hba.conf_regs_memmap_p) { 6984 dev_printk(KERN_ERR, &pdev->dev, 6985 "ioremap failed for SLI4 PCI config " 6986 "registers.\n"); 6987 goto out; 6988 } 6989 /* Set up BAR0 PCI config space register memory map */ 6990 lpfc_sli4_bar0_register_memmap(phba, if_type); 6991 } else { 6992 phba->pci_bar0_map = pci_resource_start(pdev, 1); 6993 bar0map_len = pci_resource_len(pdev, 1); 6994 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 6995 dev_printk(KERN_ERR, &pdev->dev, 6996 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 6997 goto out; 6998 } 6999 phba->sli4_hba.conf_regs_memmap_p = 7000 ioremap(phba->pci_bar0_map, bar0map_len); 7001 if (!phba->sli4_hba.conf_regs_memmap_p) { 7002 dev_printk(KERN_ERR, &pdev->dev, 7003 "ioremap failed for SLI4 PCI config " 7004 "registers.\n"); 7005 goto out; 7006 } 7007 lpfc_sli4_bar0_register_memmap(phba, if_type); 7008 } 7009 7010 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7011 (pci_resource_start(pdev, 2))) { 7012 /* 7013 * Map SLI4 if type 0 HBA Control Register base to a kernel 7014 * virtual address and setup the registers. 7015 */ 7016 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7017 bar1map_len = pci_resource_len(pdev, 2); 7018 phba->sli4_hba.ctrl_regs_memmap_p = 7019 ioremap(phba->pci_bar1_map, bar1map_len); 7020 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7021 dev_printk(KERN_ERR, &pdev->dev, 7022 "ioremap failed for SLI4 HBA control registers.\n"); 7023 goto out_iounmap_conf; 7024 } 7025 lpfc_sli4_bar1_register_memmap(phba); 7026 } 7027 7028 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7029 (pci_resource_start(pdev, 4))) { 7030 /* 7031 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7032 * virtual address and setup the registers. 7033 */ 7034 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7035 bar2map_len = pci_resource_len(pdev, 4); 7036 phba->sli4_hba.drbl_regs_memmap_p = 7037 ioremap(phba->pci_bar2_map, bar2map_len); 7038 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7039 dev_printk(KERN_ERR, &pdev->dev, 7040 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7041 goto out_iounmap_ctrl; 7042 } 7043 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7044 if (error) 7045 goto out_iounmap_all; 7046 } 7047 7048 return 0; 7049 7050 out_iounmap_all: 7051 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7052 out_iounmap_ctrl: 7053 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7054 out_iounmap_conf: 7055 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7056 out: 7057 return error; 7058 } 7059 7060 /** 7061 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7062 * @phba: pointer to lpfc hba data structure. 7063 * 7064 * This routine is invoked to unset the PCI device memory space for device 7065 * with SLI-4 interface spec. 7066 **/ 7067 static void 7068 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7069 { 7070 struct pci_dev *pdev; 7071 7072 /* Obtain PCI device reference */ 7073 if (!phba->pcidev) 7074 return; 7075 else 7076 pdev = phba->pcidev; 7077 7078 /* Free coherent DMA memory allocated */ 7079 7080 /* Unmap I/O memory space */ 7081 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7082 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7083 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7084 7085 return; 7086 } 7087 7088 /** 7089 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7090 * @phba: pointer to lpfc hba data structure. 7091 * 7092 * This routine is invoked to enable the MSI-X interrupt vectors to device 7093 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7094 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7095 * invoked, enables either all or nothing, depending on the current 7096 * availability of PCI vector resources. The device driver is responsible 7097 * for calling the individual request_irq() to register each MSI-X vector 7098 * with a interrupt handler, which is done in this function. Note that 7099 * later when device is unloading, the driver should always call free_irq() 7100 * on all MSI-X vectors it has done request_irq() on before calling 7101 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7102 * will be left with MSI-X enabled and leaks its vectors. 7103 * 7104 * Return codes 7105 * 0 - successful 7106 * other values - error 7107 **/ 7108 static int 7109 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7110 { 7111 int rc, i; 7112 LPFC_MBOXQ_t *pmb; 7113 7114 /* Set up MSI-X multi-message vectors */ 7115 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7116 phba->msix_entries[i].entry = i; 7117 7118 /* Configure MSI-X capability structure */ 7119 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7120 ARRAY_SIZE(phba->msix_entries)); 7121 if (rc) { 7122 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7123 "0420 PCI enable MSI-X failed (%d)\n", rc); 7124 goto msi_fail_out; 7125 } 7126 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7127 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7128 "0477 MSI-X entry[%d]: vector=x%x " 7129 "message=%d\n", i, 7130 phba->msix_entries[i].vector, 7131 phba->msix_entries[i].entry); 7132 /* 7133 * Assign MSI-X vectors to interrupt handlers 7134 */ 7135 7136 /* vector-0 is associated to slow-path handler */ 7137 rc = request_irq(phba->msix_entries[0].vector, 7138 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7139 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7140 if (rc) { 7141 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7142 "0421 MSI-X slow-path request_irq failed " 7143 "(%d)\n", rc); 7144 goto msi_fail_out; 7145 } 7146 7147 /* vector-1 is associated to fast-path handler */ 7148 rc = request_irq(phba->msix_entries[1].vector, 7149 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7150 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7151 7152 if (rc) { 7153 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7154 "0429 MSI-X fast-path request_irq failed " 7155 "(%d)\n", rc); 7156 goto irq_fail_out; 7157 } 7158 7159 /* 7160 * Configure HBA MSI-X attention conditions to messages 7161 */ 7162 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7163 7164 if (!pmb) { 7165 rc = -ENOMEM; 7166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7167 "0474 Unable to allocate memory for issuing " 7168 "MBOX_CONFIG_MSI command\n"); 7169 goto mem_fail_out; 7170 } 7171 rc = lpfc_config_msi(phba, pmb); 7172 if (rc) 7173 goto mbx_fail_out; 7174 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7175 if (rc != MBX_SUCCESS) { 7176 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7177 "0351 Config MSI mailbox command failed, " 7178 "mbxCmd x%x, mbxStatus x%x\n", 7179 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7180 goto mbx_fail_out; 7181 } 7182 7183 /* Free memory allocated for mailbox command */ 7184 mempool_free(pmb, phba->mbox_mem_pool); 7185 return rc; 7186 7187 mbx_fail_out: 7188 /* Free memory allocated for mailbox command */ 7189 mempool_free(pmb, phba->mbox_mem_pool); 7190 7191 mem_fail_out: 7192 /* free the irq already requested */ 7193 free_irq(phba->msix_entries[1].vector, phba); 7194 7195 irq_fail_out: 7196 /* free the irq already requested */ 7197 free_irq(phba->msix_entries[0].vector, phba); 7198 7199 msi_fail_out: 7200 /* Unconfigure MSI-X capability structure */ 7201 pci_disable_msix(phba->pcidev); 7202 return rc; 7203 } 7204 7205 /** 7206 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7207 * @phba: pointer to lpfc hba data structure. 7208 * 7209 * This routine is invoked to release the MSI-X vectors and then disable the 7210 * MSI-X interrupt mode to device with SLI-3 interface spec. 7211 **/ 7212 static void 7213 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7214 { 7215 int i; 7216 7217 /* Free up MSI-X multi-message vectors */ 7218 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7219 free_irq(phba->msix_entries[i].vector, phba); 7220 /* Disable MSI-X */ 7221 pci_disable_msix(phba->pcidev); 7222 7223 return; 7224 } 7225 7226 /** 7227 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7228 * @phba: pointer to lpfc hba data structure. 7229 * 7230 * This routine is invoked to enable the MSI interrupt mode to device with 7231 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7232 * enable the MSI vector. The device driver is responsible for calling the 7233 * request_irq() to register MSI vector with a interrupt the handler, which 7234 * is done in this function. 7235 * 7236 * Return codes 7237 * 0 - successful 7238 * other values - error 7239 */ 7240 static int 7241 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7242 { 7243 int rc; 7244 7245 rc = pci_enable_msi(phba->pcidev); 7246 if (!rc) 7247 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7248 "0462 PCI enable MSI mode success.\n"); 7249 else { 7250 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7251 "0471 PCI enable MSI mode failed (%d)\n", rc); 7252 return rc; 7253 } 7254 7255 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7256 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7257 if (rc) { 7258 pci_disable_msi(phba->pcidev); 7259 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7260 "0478 MSI request_irq failed (%d)\n", rc); 7261 } 7262 return rc; 7263 } 7264 7265 /** 7266 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7267 * @phba: pointer to lpfc hba data structure. 7268 * 7269 * This routine is invoked to disable the MSI interrupt mode to device with 7270 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7271 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7272 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7273 * its vector. 7274 */ 7275 static void 7276 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7277 { 7278 free_irq(phba->pcidev->irq, phba); 7279 pci_disable_msi(phba->pcidev); 7280 return; 7281 } 7282 7283 /** 7284 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7285 * @phba: pointer to lpfc hba data structure. 7286 * 7287 * This routine is invoked to enable device interrupt and associate driver's 7288 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7289 * spec. Depends on the interrupt mode configured to the driver, the driver 7290 * will try to fallback from the configured interrupt mode to an interrupt 7291 * mode which is supported by the platform, kernel, and device in the order 7292 * of: 7293 * MSI-X -> MSI -> IRQ. 7294 * 7295 * Return codes 7296 * 0 - successful 7297 * other values - error 7298 **/ 7299 static uint32_t 7300 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7301 { 7302 uint32_t intr_mode = LPFC_INTR_ERROR; 7303 int retval; 7304 7305 if (cfg_mode == 2) { 7306 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7307 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7308 if (!retval) { 7309 /* Now, try to enable MSI-X interrupt mode */ 7310 retval = lpfc_sli_enable_msix(phba); 7311 if (!retval) { 7312 /* Indicate initialization to MSI-X mode */ 7313 phba->intr_type = MSIX; 7314 intr_mode = 2; 7315 } 7316 } 7317 } 7318 7319 /* Fallback to MSI if MSI-X initialization failed */ 7320 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7321 retval = lpfc_sli_enable_msi(phba); 7322 if (!retval) { 7323 /* Indicate initialization to MSI mode */ 7324 phba->intr_type = MSI; 7325 intr_mode = 1; 7326 } 7327 } 7328 7329 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7330 if (phba->intr_type == NONE) { 7331 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7332 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7333 if (!retval) { 7334 /* Indicate initialization to INTx mode */ 7335 phba->intr_type = INTx; 7336 intr_mode = 0; 7337 } 7338 } 7339 return intr_mode; 7340 } 7341 7342 /** 7343 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7344 * @phba: pointer to lpfc hba data structure. 7345 * 7346 * This routine is invoked to disable device interrupt and disassociate the 7347 * driver's interrupt handler(s) from interrupt vector(s) to device with 7348 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7349 * release the interrupt vector(s) for the message signaled interrupt. 7350 **/ 7351 static void 7352 lpfc_sli_disable_intr(struct lpfc_hba *phba) 7353 { 7354 /* Disable the currently initialized interrupt mode */ 7355 if (phba->intr_type == MSIX) 7356 lpfc_sli_disable_msix(phba); 7357 else if (phba->intr_type == MSI) 7358 lpfc_sli_disable_msi(phba); 7359 else if (phba->intr_type == INTx) 7360 free_irq(phba->pcidev->irq, phba); 7361 7362 /* Reset interrupt management states */ 7363 phba->intr_type = NONE; 7364 phba->sli.slistat.sli_intr = 0; 7365 7366 return; 7367 } 7368 7369 /** 7370 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7371 * @phba: pointer to lpfc hba data structure. 7372 * 7373 * This routine is invoked to enable the MSI-X interrupt vectors to device 7374 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7375 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7376 * enables either all or nothing, depending on the current availability of 7377 * PCI vector resources. The device driver is responsible for calling the 7378 * individual request_irq() to register each MSI-X vector with a interrupt 7379 * handler, which is done in this function. Note that later when device is 7380 * unloading, the driver should always call free_irq() on all MSI-X vectors 7381 * it has done request_irq() on before calling pci_disable_msix(). Failure 7382 * to do so results in a BUG_ON() and a device will be left with MSI-X 7383 * enabled and leaks its vectors. 7384 * 7385 * Return codes 7386 * 0 - successful 7387 * other values - error 7388 **/ 7389 static int 7390 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7391 { 7392 int vectors, rc, index; 7393 7394 /* Set up MSI-X multi-message vectors */ 7395 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7396 phba->sli4_hba.msix_entries[index].entry = index; 7397 7398 /* Configure MSI-X capability structure */ 7399 vectors = phba->sli4_hba.cfg_eqn; 7400 enable_msix_vectors: 7401 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7402 vectors); 7403 if (rc > 1) { 7404 vectors = rc; 7405 goto enable_msix_vectors; 7406 } else if (rc) { 7407 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7408 "0484 PCI enable MSI-X failed (%d)\n", rc); 7409 goto msi_fail_out; 7410 } 7411 7412 /* Log MSI-X vector assignment */ 7413 for (index = 0; index < vectors; index++) 7414 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7415 "0489 MSI-X entry[%d]: vector=x%x " 7416 "message=%d\n", index, 7417 phba->sli4_hba.msix_entries[index].vector, 7418 phba->sli4_hba.msix_entries[index].entry); 7419 /* 7420 * Assign MSI-X vectors to interrupt handlers 7421 */ 7422 7423 /* The first vector must associated to slow-path handler for MQ */ 7424 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7425 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7426 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7427 if (rc) { 7428 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7429 "0485 MSI-X slow-path request_irq failed " 7430 "(%d)\n", rc); 7431 goto msi_fail_out; 7432 } 7433 7434 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7435 for (index = 1; index < vectors; index++) { 7436 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7437 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7438 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7439 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7440 LPFC_FP_DRIVER_HANDLER_NAME, 7441 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7442 if (rc) { 7443 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7444 "0486 MSI-X fast-path (%d) " 7445 "request_irq failed (%d)\n", index, rc); 7446 goto cfg_fail_out; 7447 } 7448 } 7449 phba->sli4_hba.msix_vec_nr = vectors; 7450 7451 return rc; 7452 7453 cfg_fail_out: 7454 /* free the irq already requested */ 7455 for (--index; index >= 1; index--) 7456 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7457 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7458 7459 /* free the irq already requested */ 7460 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7461 7462 msi_fail_out: 7463 /* Unconfigure MSI-X capability structure */ 7464 pci_disable_msix(phba->pcidev); 7465 return rc; 7466 } 7467 7468 /** 7469 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7470 * @phba: pointer to lpfc hba data structure. 7471 * 7472 * This routine is invoked to release the MSI-X vectors and then disable the 7473 * MSI-X interrupt mode to device with SLI-4 interface spec. 7474 **/ 7475 static void 7476 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7477 { 7478 int index; 7479 7480 /* Free up MSI-X multi-message vectors */ 7481 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7482 7483 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7484 free_irq(phba->sli4_hba.msix_entries[index].vector, 7485 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7486 7487 /* Disable MSI-X */ 7488 pci_disable_msix(phba->pcidev); 7489 7490 return; 7491 } 7492 7493 /** 7494 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7495 * @phba: pointer to lpfc hba data structure. 7496 * 7497 * This routine is invoked to enable the MSI interrupt mode to device with 7498 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7499 * to enable the MSI vector. The device driver is responsible for calling 7500 * the request_irq() to register MSI vector with a interrupt the handler, 7501 * which is done in this function. 7502 * 7503 * Return codes 7504 * 0 - successful 7505 * other values - error 7506 **/ 7507 static int 7508 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7509 { 7510 int rc, index; 7511 7512 rc = pci_enable_msi(phba->pcidev); 7513 if (!rc) 7514 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7515 "0487 PCI enable MSI mode success.\n"); 7516 else { 7517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7518 "0488 PCI enable MSI mode failed (%d)\n", rc); 7519 return rc; 7520 } 7521 7522 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7523 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7524 if (rc) { 7525 pci_disable_msi(phba->pcidev); 7526 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7527 "0490 MSI request_irq failed (%d)\n", rc); 7528 return rc; 7529 } 7530 7531 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7532 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7533 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7534 } 7535 7536 return 0; 7537 } 7538 7539 /** 7540 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7541 * @phba: pointer to lpfc hba data structure. 7542 * 7543 * This routine is invoked to disable the MSI interrupt mode to device with 7544 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7545 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7546 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7547 * its vector. 7548 **/ 7549 static void 7550 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7551 { 7552 free_irq(phba->pcidev->irq, phba); 7553 pci_disable_msi(phba->pcidev); 7554 return; 7555 } 7556 7557 /** 7558 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7559 * @phba: pointer to lpfc hba data structure. 7560 * 7561 * This routine is invoked to enable device interrupt and associate driver's 7562 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7563 * interface spec. Depends on the interrupt mode configured to the driver, 7564 * the driver will try to fallback from the configured interrupt mode to an 7565 * interrupt mode which is supported by the platform, kernel, and device in 7566 * the order of: 7567 * MSI-X -> MSI -> IRQ. 7568 * 7569 * Return codes 7570 * 0 - successful 7571 * other values - error 7572 **/ 7573 static uint32_t 7574 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7575 { 7576 uint32_t intr_mode = LPFC_INTR_ERROR; 7577 int retval, index; 7578 7579 if (cfg_mode == 2) { 7580 /* Preparation before conf_msi mbox cmd */ 7581 retval = 0; 7582 if (!retval) { 7583 /* Now, try to enable MSI-X interrupt mode */ 7584 retval = lpfc_sli4_enable_msix(phba); 7585 if (!retval) { 7586 /* Indicate initialization to MSI-X mode */ 7587 phba->intr_type = MSIX; 7588 intr_mode = 2; 7589 } 7590 } 7591 } 7592 7593 /* Fallback to MSI if MSI-X initialization failed */ 7594 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7595 retval = lpfc_sli4_enable_msi(phba); 7596 if (!retval) { 7597 /* Indicate initialization to MSI mode */ 7598 phba->intr_type = MSI; 7599 intr_mode = 1; 7600 } 7601 } 7602 7603 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7604 if (phba->intr_type == NONE) { 7605 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7606 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7607 if (!retval) { 7608 /* Indicate initialization to INTx mode */ 7609 phba->intr_type = INTx; 7610 intr_mode = 0; 7611 for (index = 0; index < phba->cfg_fcp_eq_count; 7612 index++) { 7613 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7614 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7615 } 7616 } 7617 } 7618 return intr_mode; 7619 } 7620 7621 /** 7622 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7623 * @phba: pointer to lpfc hba data structure. 7624 * 7625 * This routine is invoked to disable device interrupt and disassociate 7626 * the driver's interrupt handler(s) from interrupt vector(s) to device 7627 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7628 * will release the interrupt vector(s) for the message signaled interrupt. 7629 **/ 7630 static void 7631 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7632 { 7633 /* Disable the currently initialized interrupt mode */ 7634 if (phba->intr_type == MSIX) 7635 lpfc_sli4_disable_msix(phba); 7636 else if (phba->intr_type == MSI) 7637 lpfc_sli4_disable_msi(phba); 7638 else if (phba->intr_type == INTx) 7639 free_irq(phba->pcidev->irq, phba); 7640 7641 /* Reset interrupt management states */ 7642 phba->intr_type = NONE; 7643 phba->sli.slistat.sli_intr = 0; 7644 7645 return; 7646 } 7647 7648 /** 7649 * lpfc_unset_hba - Unset SLI3 hba device initialization 7650 * @phba: pointer to lpfc hba data structure. 7651 * 7652 * This routine is invoked to unset the HBA device initialization steps to 7653 * a device with SLI-3 interface spec. 7654 **/ 7655 static void 7656 lpfc_unset_hba(struct lpfc_hba *phba) 7657 { 7658 struct lpfc_vport *vport = phba->pport; 7659 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7660 7661 spin_lock_irq(shost->host_lock); 7662 vport->load_flag |= FC_UNLOADING; 7663 spin_unlock_irq(shost->host_lock); 7664 7665 lpfc_stop_hba_timers(phba); 7666 7667 phba->pport->work_port_events = 0; 7668 7669 lpfc_sli_hba_down(phba); 7670 7671 lpfc_sli_brdrestart(phba); 7672 7673 lpfc_sli_disable_intr(phba); 7674 7675 return; 7676 } 7677 7678 /** 7679 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7680 * @phba: pointer to lpfc hba data structure. 7681 * 7682 * This routine is invoked to unset the HBA device initialization steps to 7683 * a device with SLI-4 interface spec. 7684 **/ 7685 static void 7686 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7687 { 7688 struct lpfc_vport *vport = phba->pport; 7689 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7690 7691 spin_lock_irq(shost->host_lock); 7692 vport->load_flag |= FC_UNLOADING; 7693 spin_unlock_irq(shost->host_lock); 7694 7695 phba->pport->work_port_events = 0; 7696 7697 /* Stop the SLI4 device port */ 7698 lpfc_stop_port(phba); 7699 7700 lpfc_sli4_disable_intr(phba); 7701 7702 /* Reset SLI4 HBA FCoE function */ 7703 lpfc_pci_function_reset(phba); 7704 7705 return; 7706 } 7707 7708 /** 7709 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7710 * @phba: Pointer to HBA context object. 7711 * 7712 * This function is called in the SLI4 code path to wait for completion 7713 * of device's XRIs exchange busy. It will check the XRI exchange busy 7714 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7715 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7716 * I/Os every 30 seconds, log error message, and wait forever. Only when 7717 * all XRI exchange busy complete, the driver unload shall proceed with 7718 * invoking the function reset ioctl mailbox command to the CNA and the 7719 * the rest of the driver unload resource release. 7720 **/ 7721 static void 7722 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7723 { 7724 int wait_time = 0; 7725 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7726 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7727 7728 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7729 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7730 if (!fcp_xri_cmpl) 7731 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7732 "2877 FCP XRI exchange busy " 7733 "wait time: %d seconds.\n", 7734 wait_time/1000); 7735 if (!els_xri_cmpl) 7736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7737 "2878 ELS XRI exchange busy " 7738 "wait time: %d seconds.\n", 7739 wait_time/1000); 7740 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7741 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7742 } else { 7743 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7744 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7745 } 7746 fcp_xri_cmpl = 7747 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7748 els_xri_cmpl = 7749 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7750 } 7751 } 7752 7753 /** 7754 * lpfc_sli4_hba_unset - Unset the fcoe hba 7755 * @phba: Pointer to HBA context object. 7756 * 7757 * This function is called in the SLI4 code path to reset the HBA's FCoE 7758 * function. The caller is not required to hold any lock. This routine 7759 * issues PCI function reset mailbox command to reset the FCoE function. 7760 * At the end of the function, it calls lpfc_hba_down_post function to 7761 * free any pending commands. 7762 **/ 7763 static void 7764 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7765 { 7766 int wait_cnt = 0; 7767 LPFC_MBOXQ_t *mboxq; 7768 7769 lpfc_stop_hba_timers(phba); 7770 phba->sli4_hba.intr_enable = 0; 7771 7772 /* 7773 * Gracefully wait out the potential current outstanding asynchronous 7774 * mailbox command. 7775 */ 7776 7777 /* First, block any pending async mailbox command from posted */ 7778 spin_lock_irq(&phba->hbalock); 7779 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 7780 spin_unlock_irq(&phba->hbalock); 7781 /* Now, trying to wait it out if we can */ 7782 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7783 msleep(10); 7784 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 7785 break; 7786 } 7787 /* Forcefully release the outstanding mailbox command if timed out */ 7788 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 7789 spin_lock_irq(&phba->hbalock); 7790 mboxq = phba->sli.mbox_active; 7791 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 7792 __lpfc_mbox_cmpl_put(phba, mboxq); 7793 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 7794 phba->sli.mbox_active = NULL; 7795 spin_unlock_irq(&phba->hbalock); 7796 } 7797 7798 /* Abort all iocbs associated with the hba */ 7799 lpfc_sli_hba_iocb_abort(phba); 7800 7801 /* Wait for completion of device XRI exchange busy */ 7802 lpfc_sli4_xri_exchange_busy_wait(phba); 7803 7804 /* Disable PCI subsystem interrupt */ 7805 lpfc_sli4_disable_intr(phba); 7806 7807 /* Stop kthread signal shall trigger work_done one more time */ 7808 kthread_stop(phba->worker_thread); 7809 7810 /* Reset SLI4 HBA FCoE function */ 7811 lpfc_pci_function_reset(phba); 7812 7813 /* Stop the SLI4 device port */ 7814 phba->pport->work_port_events = 0; 7815 } 7816 7817 /** 7818 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 7819 * @phba: Pointer to HBA context object. 7820 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7821 * 7822 * This function is called in the SLI4 code path to read the port's 7823 * sli4 capabilities. 7824 * 7825 * This function may be be called from any context that can block-wait 7826 * for the completion. The expectation is that this routine is called 7827 * typically from probe_one or from the online routine. 7828 **/ 7829 int 7830 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7831 { 7832 int rc; 7833 struct lpfc_mqe *mqe; 7834 struct lpfc_pc_sli4_params *sli4_params; 7835 uint32_t mbox_tmo; 7836 7837 rc = 0; 7838 mqe = &mboxq->u.mqe; 7839 7840 /* Read the port's SLI4 Parameters port capabilities */ 7841 lpfc_pc_sli4_params(mboxq); 7842 if (!phba->sli4_hba.intr_enable) 7843 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7844 else { 7845 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 7846 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7847 } 7848 7849 if (unlikely(rc)) 7850 return 1; 7851 7852 sli4_params = &phba->sli4_hba.pc_sli4_params; 7853 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 7854 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 7855 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 7856 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 7857 &mqe->un.sli4_params); 7858 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 7859 &mqe->un.sli4_params); 7860 sli4_params->proto_types = mqe->un.sli4_params.word3; 7861 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 7862 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 7863 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 7864 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 7865 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 7866 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 7867 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 7868 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 7869 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 7870 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 7871 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 7872 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 7873 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 7874 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 7875 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 7876 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 7877 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 7878 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 7879 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 7880 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 7881 return rc; 7882 } 7883 7884 /** 7885 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 7886 * @phba: Pointer to HBA context object. 7887 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 7888 * 7889 * This function is called in the SLI4 code path to read the port's 7890 * sli4 capabilities. 7891 * 7892 * This function may be be called from any context that can block-wait 7893 * for the completion. The expectation is that this routine is called 7894 * typically from probe_one or from the online routine. 7895 **/ 7896 int 7897 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 7898 { 7899 int rc; 7900 struct lpfc_mqe *mqe = &mboxq->u.mqe; 7901 struct lpfc_pc_sli4_params *sli4_params; 7902 int length; 7903 struct lpfc_sli4_parameters *mbx_sli4_parameters; 7904 7905 /* Read the port's SLI4 Config Parameters */ 7906 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 7907 sizeof(struct lpfc_sli4_cfg_mhdr)); 7908 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7909 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 7910 length, LPFC_SLI4_MBX_EMBED); 7911 if (!phba->sli4_hba.intr_enable) 7912 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7913 else 7914 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, 7915 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG)); 7916 if (unlikely(rc)) 7917 return rc; 7918 sli4_params = &phba->sli4_hba.pc_sli4_params; 7919 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 7920 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 7921 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 7922 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 7923 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 7924 mbx_sli4_parameters); 7925 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 7926 mbx_sli4_parameters); 7927 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 7928 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 7929 else 7930 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 7931 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 7932 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 7933 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 7934 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 7935 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 7936 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 7937 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 7938 mbx_sli4_parameters); 7939 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 7940 mbx_sli4_parameters); 7941 return 0; 7942 } 7943 7944 /** 7945 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 7946 * @pdev: pointer to PCI device 7947 * @pid: pointer to PCI device identifier 7948 * 7949 * This routine is to be called to attach a device with SLI-3 interface spec 7950 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 7951 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7952 * information of the device and driver to see if the driver state that it can 7953 * support this kind of device. If the match is successful, the driver core 7954 * invokes this routine. If this routine determines it can claim the HBA, it 7955 * does all the initialization that it needs to do to handle the HBA properly. 7956 * 7957 * Return code 7958 * 0 - driver can claim the device 7959 * negative value - driver can not claim the device 7960 **/ 7961 static int __devinit 7962 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 7963 { 7964 struct lpfc_hba *phba; 7965 struct lpfc_vport *vport = NULL; 7966 struct Scsi_Host *shost = NULL; 7967 int error; 7968 uint32_t cfg_mode, intr_mode; 7969 7970 /* Allocate memory for HBA structure */ 7971 phba = lpfc_hba_alloc(pdev); 7972 if (!phba) 7973 return -ENOMEM; 7974 7975 /* Perform generic PCI device enabling operation */ 7976 error = lpfc_enable_pci_dev(phba); 7977 if (error) { 7978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7979 "1401 Failed to enable pci device.\n"); 7980 goto out_free_phba; 7981 } 7982 7983 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 7984 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 7985 if (error) 7986 goto out_disable_pci_dev; 7987 7988 /* Set up SLI-3 specific device PCI memory space */ 7989 error = lpfc_sli_pci_mem_setup(phba); 7990 if (error) { 7991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7992 "1402 Failed to set up pci memory space.\n"); 7993 goto out_disable_pci_dev; 7994 } 7995 7996 /* Set up phase-1 common device driver resources */ 7997 error = lpfc_setup_driver_resource_phase1(phba); 7998 if (error) { 7999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8000 "1403 Failed to set up driver resource.\n"); 8001 goto out_unset_pci_mem_s3; 8002 } 8003 8004 /* Set up SLI-3 specific device driver resources */ 8005 error = lpfc_sli_driver_resource_setup(phba); 8006 if (error) { 8007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8008 "1404 Failed to set up driver resource.\n"); 8009 goto out_unset_pci_mem_s3; 8010 } 8011 8012 /* Initialize and populate the iocb list per host */ 8013 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8014 if (error) { 8015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8016 "1405 Failed to initialize iocb list.\n"); 8017 goto out_unset_driver_resource_s3; 8018 } 8019 8020 /* Set up common device driver resources */ 8021 error = lpfc_setup_driver_resource_phase2(phba); 8022 if (error) { 8023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8024 "1406 Failed to set up driver resource.\n"); 8025 goto out_free_iocb_list; 8026 } 8027 8028 /* Create SCSI host to the physical port */ 8029 error = lpfc_create_shost(phba); 8030 if (error) { 8031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8032 "1407 Failed to create scsi host.\n"); 8033 goto out_unset_driver_resource; 8034 } 8035 8036 /* Configure sysfs attributes */ 8037 vport = phba->pport; 8038 error = lpfc_alloc_sysfs_attr(vport); 8039 if (error) { 8040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8041 "1476 Failed to allocate sysfs attr\n"); 8042 goto out_destroy_shost; 8043 } 8044 8045 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8046 /* Now, trying to enable interrupt and bring up the device */ 8047 cfg_mode = phba->cfg_use_msi; 8048 while (true) { 8049 /* Put device to a known state before enabling interrupt */ 8050 lpfc_stop_port(phba); 8051 /* Configure and enable interrupt */ 8052 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8053 if (intr_mode == LPFC_INTR_ERROR) { 8054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8055 "0431 Failed to enable interrupt.\n"); 8056 error = -ENODEV; 8057 goto out_free_sysfs_attr; 8058 } 8059 /* SLI-3 HBA setup */ 8060 if (lpfc_sli_hba_setup(phba)) { 8061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8062 "1477 Failed to set up hba\n"); 8063 error = -ENODEV; 8064 goto out_remove_device; 8065 } 8066 8067 /* Wait 50ms for the interrupts of previous mailbox commands */ 8068 msleep(50); 8069 /* Check active interrupts on message signaled interrupts */ 8070 if (intr_mode == 0 || 8071 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8072 /* Log the current active interrupt mode */ 8073 phba->intr_mode = intr_mode; 8074 lpfc_log_intr_mode(phba, intr_mode); 8075 break; 8076 } else { 8077 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8078 "0447 Configure interrupt mode (%d) " 8079 "failed active interrupt test.\n", 8080 intr_mode); 8081 /* Disable the current interrupt mode */ 8082 lpfc_sli_disable_intr(phba); 8083 /* Try next level of interrupt mode */ 8084 cfg_mode = --intr_mode; 8085 } 8086 } 8087 8088 /* Perform post initialization setup */ 8089 lpfc_post_init_setup(phba); 8090 8091 /* Check if there are static vports to be created. */ 8092 lpfc_create_static_vport(phba); 8093 8094 return 0; 8095 8096 out_remove_device: 8097 lpfc_unset_hba(phba); 8098 out_free_sysfs_attr: 8099 lpfc_free_sysfs_attr(vport); 8100 out_destroy_shost: 8101 lpfc_destroy_shost(phba); 8102 out_unset_driver_resource: 8103 lpfc_unset_driver_resource_phase2(phba); 8104 out_free_iocb_list: 8105 lpfc_free_iocb_list(phba); 8106 out_unset_driver_resource_s3: 8107 lpfc_sli_driver_resource_unset(phba); 8108 out_unset_pci_mem_s3: 8109 lpfc_sli_pci_mem_unset(phba); 8110 out_disable_pci_dev: 8111 lpfc_disable_pci_dev(phba); 8112 if (shost) 8113 scsi_host_put(shost); 8114 out_free_phba: 8115 lpfc_hba_free(phba); 8116 return error; 8117 } 8118 8119 /** 8120 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8121 * @pdev: pointer to PCI device 8122 * 8123 * This routine is to be called to disattach a device with SLI-3 interface 8124 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8125 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8126 * device to be removed from the PCI subsystem properly. 8127 **/ 8128 static void __devexit 8129 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8130 { 8131 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8132 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8133 struct lpfc_vport **vports; 8134 struct lpfc_hba *phba = vport->phba; 8135 int i; 8136 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8137 8138 spin_lock_irq(&phba->hbalock); 8139 vport->load_flag |= FC_UNLOADING; 8140 spin_unlock_irq(&phba->hbalock); 8141 8142 lpfc_free_sysfs_attr(vport); 8143 8144 /* Release all the vports against this physical port */ 8145 vports = lpfc_create_vport_work_array(phba); 8146 if (vports != NULL) 8147 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8148 fc_vport_terminate(vports[i]->fc_vport); 8149 lpfc_destroy_vport_work_array(phba, vports); 8150 8151 /* Remove FC host and then SCSI host with the physical port */ 8152 fc_remove_host(shost); 8153 scsi_remove_host(shost); 8154 lpfc_cleanup(vport); 8155 8156 /* 8157 * Bring down the SLI Layer. This step disable all interrupts, 8158 * clears the rings, discards all mailbox commands, and resets 8159 * the HBA. 8160 */ 8161 8162 /* HBA interrupt will be disabled after this call */ 8163 lpfc_sli_hba_down(phba); 8164 /* Stop kthread signal shall trigger work_done one more time */ 8165 kthread_stop(phba->worker_thread); 8166 /* Final cleanup of txcmplq and reset the HBA */ 8167 lpfc_sli_brdrestart(phba); 8168 8169 lpfc_stop_hba_timers(phba); 8170 spin_lock_irq(&phba->hbalock); 8171 list_del_init(&vport->listentry); 8172 spin_unlock_irq(&phba->hbalock); 8173 8174 lpfc_debugfs_terminate(vport); 8175 8176 /* Disable interrupt */ 8177 lpfc_sli_disable_intr(phba); 8178 8179 pci_set_drvdata(pdev, NULL); 8180 scsi_host_put(shost); 8181 8182 /* 8183 * Call scsi_free before mem_free since scsi bufs are released to their 8184 * corresponding pools here. 8185 */ 8186 lpfc_scsi_free(phba); 8187 lpfc_mem_free_all(phba); 8188 8189 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8190 phba->hbqslimp.virt, phba->hbqslimp.phys); 8191 8192 /* Free resources associated with SLI2 interface */ 8193 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8194 phba->slim2p.virt, phba->slim2p.phys); 8195 8196 /* unmap adapter SLIM and Control Registers */ 8197 iounmap(phba->ctrl_regs_memmap_p); 8198 iounmap(phba->slim_memmap_p); 8199 8200 lpfc_hba_free(phba); 8201 8202 pci_release_selected_regions(pdev, bars); 8203 pci_disable_device(pdev); 8204 } 8205 8206 /** 8207 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8208 * @pdev: pointer to PCI device 8209 * @msg: power management message 8210 * 8211 * This routine is to be called from the kernel's PCI subsystem to support 8212 * system Power Management (PM) to device with SLI-3 interface spec. When 8213 * PM invokes this method, it quiesces the device by stopping the driver's 8214 * worker thread for the device, turning off device's interrupt and DMA, 8215 * and bring the device offline. Note that as the driver implements the 8216 * minimum PM requirements to a power-aware driver's PM support for the 8217 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8218 * to the suspend() method call will be treated as SUSPEND and the driver will 8219 * fully reinitialize its device during resume() method call, the driver will 8220 * set device to PCI_D3hot state in PCI config space instead of setting it 8221 * according to the @msg provided by the PM. 8222 * 8223 * Return code 8224 * 0 - driver suspended the device 8225 * Error otherwise 8226 **/ 8227 static int 8228 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8229 { 8230 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8231 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8232 8233 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8234 "0473 PCI device Power Management suspend.\n"); 8235 8236 /* Bring down the device */ 8237 lpfc_offline_prep(phba); 8238 lpfc_offline(phba); 8239 kthread_stop(phba->worker_thread); 8240 8241 /* Disable interrupt from device */ 8242 lpfc_sli_disable_intr(phba); 8243 8244 /* Save device state to PCI config space */ 8245 pci_save_state(pdev); 8246 pci_set_power_state(pdev, PCI_D3hot); 8247 8248 return 0; 8249 } 8250 8251 /** 8252 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8253 * @pdev: pointer to PCI device 8254 * 8255 * This routine is to be called from the kernel's PCI subsystem to support 8256 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8257 * invokes this method, it restores the device's PCI config space state and 8258 * fully reinitializes the device and brings it online. Note that as the 8259 * driver implements the minimum PM requirements to a power-aware driver's 8260 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8261 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8262 * driver will fully reinitialize its device during resume() method call, 8263 * the device will be set to PCI_D0 directly in PCI config space before 8264 * restoring the state. 8265 * 8266 * Return code 8267 * 0 - driver suspended the device 8268 * Error otherwise 8269 **/ 8270 static int 8271 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8272 { 8273 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8274 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8275 uint32_t intr_mode; 8276 int error; 8277 8278 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8279 "0452 PCI device Power Management resume.\n"); 8280 8281 /* Restore device state from PCI config space */ 8282 pci_set_power_state(pdev, PCI_D0); 8283 pci_restore_state(pdev); 8284 8285 /* 8286 * As the new kernel behavior of pci_restore_state() API call clears 8287 * device saved_state flag, need to save the restored state again. 8288 */ 8289 pci_save_state(pdev); 8290 8291 if (pdev->is_busmaster) 8292 pci_set_master(pdev); 8293 8294 /* Startup the kernel thread for this host adapter. */ 8295 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8296 "lpfc_worker_%d", phba->brd_no); 8297 if (IS_ERR(phba->worker_thread)) { 8298 error = PTR_ERR(phba->worker_thread); 8299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8300 "0434 PM resume failed to start worker " 8301 "thread: error=x%x.\n", error); 8302 return error; 8303 } 8304 8305 /* Configure and enable interrupt */ 8306 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8307 if (intr_mode == LPFC_INTR_ERROR) { 8308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8309 "0430 PM resume Failed to enable interrupt\n"); 8310 return -EIO; 8311 } else 8312 phba->intr_mode = intr_mode; 8313 8314 /* Restart HBA and bring it online */ 8315 lpfc_sli_brdrestart(phba); 8316 lpfc_online(phba); 8317 8318 /* Log the current active interrupt mode */ 8319 lpfc_log_intr_mode(phba, phba->intr_mode); 8320 8321 return 0; 8322 } 8323 8324 /** 8325 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8326 * @phba: pointer to lpfc hba data structure. 8327 * 8328 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8329 * aborts all the outstanding SCSI I/Os to the pci device. 8330 **/ 8331 static void 8332 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8333 { 8334 struct lpfc_sli *psli = &phba->sli; 8335 struct lpfc_sli_ring *pring; 8336 8337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8338 "2723 PCI channel I/O abort preparing for recovery\n"); 8339 8340 /* 8341 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8342 * and let the SCSI mid-layer to retry them to recover. 8343 */ 8344 pring = &psli->ring[psli->fcp_ring]; 8345 lpfc_sli_abort_iocb_ring(phba, pring); 8346 } 8347 8348 /** 8349 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8350 * @phba: pointer to lpfc hba data structure. 8351 * 8352 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8353 * disables the device interrupt and pci device, and aborts the internal FCP 8354 * pending I/Os. 8355 **/ 8356 static void 8357 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8358 { 8359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8360 "2710 PCI channel disable preparing for reset\n"); 8361 8362 /* Block any management I/Os to the device */ 8363 lpfc_block_mgmt_io(phba); 8364 8365 /* Block all SCSI devices' I/Os on the host */ 8366 lpfc_scsi_dev_block(phba); 8367 8368 /* stop all timers */ 8369 lpfc_stop_hba_timers(phba); 8370 8371 /* Disable interrupt and pci device */ 8372 lpfc_sli_disable_intr(phba); 8373 pci_disable_device(phba->pcidev); 8374 8375 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8376 lpfc_sli_flush_fcp_rings(phba); 8377 } 8378 8379 /** 8380 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8381 * @phba: pointer to lpfc hba data structure. 8382 * 8383 * This routine is called to prepare the SLI3 device for PCI slot permanently 8384 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8385 * pending I/Os. 8386 **/ 8387 static void 8388 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8389 { 8390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8391 "2711 PCI channel permanent disable for failure\n"); 8392 /* Block all SCSI devices' I/Os on the host */ 8393 lpfc_scsi_dev_block(phba); 8394 8395 /* stop all timers */ 8396 lpfc_stop_hba_timers(phba); 8397 8398 /* Clean up all driver's outstanding SCSI I/Os */ 8399 lpfc_sli_flush_fcp_rings(phba); 8400 } 8401 8402 /** 8403 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8404 * @pdev: pointer to PCI device. 8405 * @state: the current PCI connection state. 8406 * 8407 * This routine is called from the PCI subsystem for I/O error handling to 8408 * device with SLI-3 interface spec. This function is called by the PCI 8409 * subsystem after a PCI bus error affecting this device has been detected. 8410 * When this function is invoked, it will need to stop all the I/Os and 8411 * interrupt(s) to the device. Once that is done, it will return 8412 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8413 * as desired. 8414 * 8415 * Return codes 8416 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8417 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8418 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8419 **/ 8420 static pci_ers_result_t 8421 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8422 { 8423 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8424 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8425 8426 switch (state) { 8427 case pci_channel_io_normal: 8428 /* Non-fatal error, prepare for recovery */ 8429 lpfc_sli_prep_dev_for_recover(phba); 8430 return PCI_ERS_RESULT_CAN_RECOVER; 8431 case pci_channel_io_frozen: 8432 /* Fatal error, prepare for slot reset */ 8433 lpfc_sli_prep_dev_for_reset(phba); 8434 return PCI_ERS_RESULT_NEED_RESET; 8435 case pci_channel_io_perm_failure: 8436 /* Permanent failure, prepare for device down */ 8437 lpfc_sli_prep_dev_for_perm_failure(phba); 8438 return PCI_ERS_RESULT_DISCONNECT; 8439 default: 8440 /* Unknown state, prepare and request slot reset */ 8441 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8442 "0472 Unknown PCI error state: x%x\n", state); 8443 lpfc_sli_prep_dev_for_reset(phba); 8444 return PCI_ERS_RESULT_NEED_RESET; 8445 } 8446 } 8447 8448 /** 8449 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8450 * @pdev: pointer to PCI device. 8451 * 8452 * This routine is called from the PCI subsystem for error handling to 8453 * device with SLI-3 interface spec. This is called after PCI bus has been 8454 * reset to restart the PCI card from scratch, as if from a cold-boot. 8455 * During the PCI subsystem error recovery, after driver returns 8456 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8457 * recovery and then call this routine before calling the .resume method 8458 * to recover the device. This function will initialize the HBA device, 8459 * enable the interrupt, but it will just put the HBA to offline state 8460 * without passing any I/O traffic. 8461 * 8462 * Return codes 8463 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8464 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8465 */ 8466 static pci_ers_result_t 8467 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8468 { 8469 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8470 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8471 struct lpfc_sli *psli = &phba->sli; 8472 uint32_t intr_mode; 8473 8474 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8475 if (pci_enable_device_mem(pdev)) { 8476 printk(KERN_ERR "lpfc: Cannot re-enable " 8477 "PCI device after reset.\n"); 8478 return PCI_ERS_RESULT_DISCONNECT; 8479 } 8480 8481 pci_restore_state(pdev); 8482 8483 /* 8484 * As the new kernel behavior of pci_restore_state() API call clears 8485 * device saved_state flag, need to save the restored state again. 8486 */ 8487 pci_save_state(pdev); 8488 8489 if (pdev->is_busmaster) 8490 pci_set_master(pdev); 8491 8492 spin_lock_irq(&phba->hbalock); 8493 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8494 spin_unlock_irq(&phba->hbalock); 8495 8496 /* Configure and enable interrupt */ 8497 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8498 if (intr_mode == LPFC_INTR_ERROR) { 8499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8500 "0427 Cannot re-enable interrupt after " 8501 "slot reset.\n"); 8502 return PCI_ERS_RESULT_DISCONNECT; 8503 } else 8504 phba->intr_mode = intr_mode; 8505 8506 /* Take device offline, it will perform cleanup */ 8507 lpfc_offline_prep(phba); 8508 lpfc_offline(phba); 8509 lpfc_sli_brdrestart(phba); 8510 8511 /* Log the current active interrupt mode */ 8512 lpfc_log_intr_mode(phba, phba->intr_mode); 8513 8514 return PCI_ERS_RESULT_RECOVERED; 8515 } 8516 8517 /** 8518 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8519 * @pdev: pointer to PCI device 8520 * 8521 * This routine is called from the PCI subsystem for error handling to device 8522 * with SLI-3 interface spec. It is called when kernel error recovery tells 8523 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8524 * error recovery. After this call, traffic can start to flow from this device 8525 * again. 8526 */ 8527 static void 8528 lpfc_io_resume_s3(struct pci_dev *pdev) 8529 { 8530 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8531 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8532 8533 /* Bring device online, it will be no-op for non-fatal error resume */ 8534 lpfc_online(phba); 8535 8536 /* Clean up Advanced Error Reporting (AER) if needed */ 8537 if (phba->hba_flag & HBA_AER_ENABLED) 8538 pci_cleanup_aer_uncorrect_error_status(pdev); 8539 } 8540 8541 /** 8542 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8543 * @phba: pointer to lpfc hba data structure. 8544 * 8545 * returns the number of ELS/CT IOCBs to reserve 8546 **/ 8547 int 8548 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8549 { 8550 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8551 8552 if (phba->sli_rev == LPFC_SLI_REV4) { 8553 if (max_xri <= 100) 8554 return 10; 8555 else if (max_xri <= 256) 8556 return 25; 8557 else if (max_xri <= 512) 8558 return 50; 8559 else if (max_xri <= 1024) 8560 return 100; 8561 else 8562 return 150; 8563 } else 8564 return 0; 8565 } 8566 8567 /** 8568 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8569 * @pdev: pointer to PCI device 8570 * @pid: pointer to PCI device identifier 8571 * 8572 * This routine is called from the kernel's PCI subsystem to device with 8573 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8574 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8575 * information of the device and driver to see if the driver state that it 8576 * can support this kind of device. If the match is successful, the driver 8577 * core invokes this routine. If this routine determines it can claim the HBA, 8578 * it does all the initialization that it needs to do to handle the HBA 8579 * properly. 8580 * 8581 * Return code 8582 * 0 - driver can claim the device 8583 * negative value - driver can not claim the device 8584 **/ 8585 static int __devinit 8586 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8587 { 8588 struct lpfc_hba *phba; 8589 struct lpfc_vport *vport = NULL; 8590 struct Scsi_Host *shost = NULL; 8591 int error; 8592 uint32_t cfg_mode, intr_mode; 8593 int mcnt; 8594 8595 /* Allocate memory for HBA structure */ 8596 phba = lpfc_hba_alloc(pdev); 8597 if (!phba) 8598 return -ENOMEM; 8599 8600 /* Perform generic PCI device enabling operation */ 8601 error = lpfc_enable_pci_dev(phba); 8602 if (error) { 8603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8604 "1409 Failed to enable pci device.\n"); 8605 goto out_free_phba; 8606 } 8607 8608 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8609 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8610 if (error) 8611 goto out_disable_pci_dev; 8612 8613 /* Set up SLI-4 specific device PCI memory space */ 8614 error = lpfc_sli4_pci_mem_setup(phba); 8615 if (error) { 8616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8617 "1410 Failed to set up pci memory space.\n"); 8618 goto out_disable_pci_dev; 8619 } 8620 8621 /* Set up phase-1 common device driver resources */ 8622 error = lpfc_setup_driver_resource_phase1(phba); 8623 if (error) { 8624 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8625 "1411 Failed to set up driver resource.\n"); 8626 goto out_unset_pci_mem_s4; 8627 } 8628 8629 /* Set up SLI-4 Specific device driver resources */ 8630 error = lpfc_sli4_driver_resource_setup(phba); 8631 if (error) { 8632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8633 "1412 Failed to set up driver resource.\n"); 8634 goto out_unset_pci_mem_s4; 8635 } 8636 8637 /* Initialize and populate the iocb list per host */ 8638 8639 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8640 "2821 initialize iocb list %d.\n", 8641 phba->cfg_iocb_cnt*1024); 8642 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 8643 8644 if (error) { 8645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8646 "1413 Failed to initialize iocb list.\n"); 8647 goto out_unset_driver_resource_s4; 8648 } 8649 8650 INIT_LIST_HEAD(&phba->active_rrq_list); 8651 8652 /* Set up common device driver resources */ 8653 error = lpfc_setup_driver_resource_phase2(phba); 8654 if (error) { 8655 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8656 "1414 Failed to set up driver resource.\n"); 8657 goto out_free_iocb_list; 8658 } 8659 8660 /* Create SCSI host to the physical port */ 8661 error = lpfc_create_shost(phba); 8662 if (error) { 8663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8664 "1415 Failed to create scsi host.\n"); 8665 goto out_unset_driver_resource; 8666 } 8667 8668 /* Configure sysfs attributes */ 8669 vport = phba->pport; 8670 error = lpfc_alloc_sysfs_attr(vport); 8671 if (error) { 8672 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8673 "1416 Failed to allocate sysfs attr\n"); 8674 goto out_destroy_shost; 8675 } 8676 8677 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8678 /* Now, trying to enable interrupt and bring up the device */ 8679 cfg_mode = phba->cfg_use_msi; 8680 while (true) { 8681 /* Put device to a known state before enabling interrupt */ 8682 lpfc_stop_port(phba); 8683 /* Configure and enable interrupt */ 8684 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 8685 if (intr_mode == LPFC_INTR_ERROR) { 8686 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8687 "0426 Failed to enable interrupt.\n"); 8688 error = -ENODEV; 8689 goto out_free_sysfs_attr; 8690 } 8691 /* Default to single FCP EQ for non-MSI-X */ 8692 if (phba->intr_type != MSIX) 8693 phba->cfg_fcp_eq_count = 1; 8694 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count) 8695 phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 8696 /* Set up SLI-4 HBA */ 8697 if (lpfc_sli4_hba_setup(phba)) { 8698 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8699 "1421 Failed to set up hba\n"); 8700 error = -ENODEV; 8701 goto out_disable_intr; 8702 } 8703 8704 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 8705 if (intr_mode != 0) 8706 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 8707 LPFC_ACT_INTR_CNT); 8708 8709 /* Check active interrupts received only for MSI/MSI-X */ 8710 if (intr_mode == 0 || 8711 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 8712 /* Log the current active interrupt mode */ 8713 phba->intr_mode = intr_mode; 8714 lpfc_log_intr_mode(phba, intr_mode); 8715 break; 8716 } 8717 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8718 "0451 Configure interrupt mode (%d) " 8719 "failed active interrupt test.\n", 8720 intr_mode); 8721 /* Unset the previous SLI-4 HBA setup. */ 8722 /* 8723 * TODO: Is this operation compatible with IF TYPE 2 8724 * devices? All port state is deleted and cleared. 8725 */ 8726 lpfc_sli4_unset_hba(phba); 8727 /* Try next level of interrupt mode */ 8728 cfg_mode = --intr_mode; 8729 } 8730 8731 /* Perform post initialization setup */ 8732 lpfc_post_init_setup(phba); 8733 8734 /* Check if there are static vports to be created. */ 8735 lpfc_create_static_vport(phba); 8736 8737 return 0; 8738 8739 out_disable_intr: 8740 lpfc_sli4_disable_intr(phba); 8741 out_free_sysfs_attr: 8742 lpfc_free_sysfs_attr(vport); 8743 out_destroy_shost: 8744 lpfc_destroy_shost(phba); 8745 out_unset_driver_resource: 8746 lpfc_unset_driver_resource_phase2(phba); 8747 out_free_iocb_list: 8748 lpfc_free_iocb_list(phba); 8749 out_unset_driver_resource_s4: 8750 lpfc_sli4_driver_resource_unset(phba); 8751 out_unset_pci_mem_s4: 8752 lpfc_sli4_pci_mem_unset(phba); 8753 out_disable_pci_dev: 8754 lpfc_disable_pci_dev(phba); 8755 if (shost) 8756 scsi_host_put(shost); 8757 out_free_phba: 8758 lpfc_hba_free(phba); 8759 return error; 8760 } 8761 8762 /** 8763 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 8764 * @pdev: pointer to PCI device 8765 * 8766 * This routine is called from the kernel's PCI subsystem to device with 8767 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8768 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8769 * device to be removed from the PCI subsystem properly. 8770 **/ 8771 static void __devexit 8772 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 8773 { 8774 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8775 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8776 struct lpfc_vport **vports; 8777 struct lpfc_hba *phba = vport->phba; 8778 int i; 8779 8780 /* Mark the device unloading flag */ 8781 spin_lock_irq(&phba->hbalock); 8782 vport->load_flag |= FC_UNLOADING; 8783 spin_unlock_irq(&phba->hbalock); 8784 8785 /* Free the HBA sysfs attributes */ 8786 lpfc_free_sysfs_attr(vport); 8787 8788 /* Release all the vports against this physical port */ 8789 vports = lpfc_create_vport_work_array(phba); 8790 if (vports != NULL) 8791 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8792 fc_vport_terminate(vports[i]->fc_vport); 8793 lpfc_destroy_vport_work_array(phba, vports); 8794 8795 /* Remove FC host and then SCSI host with the physical port */ 8796 fc_remove_host(shost); 8797 scsi_remove_host(shost); 8798 8799 /* Perform cleanup on the physical port */ 8800 lpfc_cleanup(vport); 8801 8802 /* 8803 * Bring down the SLI Layer. This step disables all interrupts, 8804 * clears the rings, discards all mailbox commands, and resets 8805 * the HBA FCoE function. 8806 */ 8807 lpfc_debugfs_terminate(vport); 8808 lpfc_sli4_hba_unset(phba); 8809 8810 spin_lock_irq(&phba->hbalock); 8811 list_del_init(&vport->listentry); 8812 spin_unlock_irq(&phba->hbalock); 8813 8814 /* Perform scsi free before driver resource_unset since scsi 8815 * buffers are released to their corresponding pools here. 8816 */ 8817 lpfc_scsi_free(phba); 8818 lpfc_sli4_driver_resource_unset(phba); 8819 8820 /* Unmap adapter Control and Doorbell registers */ 8821 lpfc_sli4_pci_mem_unset(phba); 8822 8823 /* Release PCI resources and disable device's PCI function */ 8824 scsi_host_put(shost); 8825 lpfc_disable_pci_dev(phba); 8826 8827 /* Finally, free the driver's device data structure */ 8828 lpfc_hba_free(phba); 8829 8830 return; 8831 } 8832 8833 /** 8834 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 8835 * @pdev: pointer to PCI device 8836 * @msg: power management message 8837 * 8838 * This routine is called from the kernel's PCI subsystem to support system 8839 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 8840 * this method, it quiesces the device by stopping the driver's worker 8841 * thread for the device, turning off device's interrupt and DMA, and bring 8842 * the device offline. Note that as the driver implements the minimum PM 8843 * requirements to a power-aware driver's PM support for suspend/resume -- all 8844 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 8845 * method call will be treated as SUSPEND and the driver will fully 8846 * reinitialize its device during resume() method call, the driver will set 8847 * device to PCI_D3hot state in PCI config space instead of setting it 8848 * according to the @msg provided by the PM. 8849 * 8850 * Return code 8851 * 0 - driver suspended the device 8852 * Error otherwise 8853 **/ 8854 static int 8855 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 8856 { 8857 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8858 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8859 8860 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8861 "2843 PCI device Power Management suspend.\n"); 8862 8863 /* Bring down the device */ 8864 lpfc_offline_prep(phba); 8865 lpfc_offline(phba); 8866 kthread_stop(phba->worker_thread); 8867 8868 /* Disable interrupt from device */ 8869 lpfc_sli4_disable_intr(phba); 8870 8871 /* Save device state to PCI config space */ 8872 pci_save_state(pdev); 8873 pci_set_power_state(pdev, PCI_D3hot); 8874 8875 return 0; 8876 } 8877 8878 /** 8879 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 8880 * @pdev: pointer to PCI device 8881 * 8882 * This routine is called from the kernel's PCI subsystem to support system 8883 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 8884 * this method, it restores the device's PCI config space state and fully 8885 * reinitializes the device and brings it online. Note that as the driver 8886 * implements the minimum PM requirements to a power-aware driver's PM for 8887 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8888 * to the suspend() method call will be treated as SUSPEND and the driver 8889 * will fully reinitialize its device during resume() method call, the device 8890 * will be set to PCI_D0 directly in PCI config space before restoring the 8891 * state. 8892 * 8893 * Return code 8894 * 0 - driver suspended the device 8895 * Error otherwise 8896 **/ 8897 static int 8898 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 8899 { 8900 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8901 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8902 uint32_t intr_mode; 8903 int error; 8904 8905 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8906 "0292 PCI device Power Management resume.\n"); 8907 8908 /* Restore device state from PCI config space */ 8909 pci_set_power_state(pdev, PCI_D0); 8910 pci_restore_state(pdev); 8911 8912 /* 8913 * As the new kernel behavior of pci_restore_state() API call clears 8914 * device saved_state flag, need to save the restored state again. 8915 */ 8916 pci_save_state(pdev); 8917 8918 if (pdev->is_busmaster) 8919 pci_set_master(pdev); 8920 8921 /* Startup the kernel thread for this host adapter. */ 8922 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8923 "lpfc_worker_%d", phba->brd_no); 8924 if (IS_ERR(phba->worker_thread)) { 8925 error = PTR_ERR(phba->worker_thread); 8926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8927 "0293 PM resume failed to start worker " 8928 "thread: error=x%x.\n", error); 8929 return error; 8930 } 8931 8932 /* Configure and enable interrupt */ 8933 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 8934 if (intr_mode == LPFC_INTR_ERROR) { 8935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8936 "0294 PM resume Failed to enable interrupt\n"); 8937 return -EIO; 8938 } else 8939 phba->intr_mode = intr_mode; 8940 8941 /* Restart HBA and bring it online */ 8942 lpfc_sli_brdrestart(phba); 8943 lpfc_online(phba); 8944 8945 /* Log the current active interrupt mode */ 8946 lpfc_log_intr_mode(phba, phba->intr_mode); 8947 8948 return 0; 8949 } 8950 8951 /** 8952 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 8953 * @phba: pointer to lpfc hba data structure. 8954 * 8955 * This routine is called to prepare the SLI4 device for PCI slot recover. It 8956 * aborts all the outstanding SCSI I/Os to the pci device. 8957 **/ 8958 static void 8959 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 8960 { 8961 struct lpfc_sli *psli = &phba->sli; 8962 struct lpfc_sli_ring *pring; 8963 8964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8965 "2828 PCI channel I/O abort preparing for recovery\n"); 8966 /* 8967 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8968 * and let the SCSI mid-layer to retry them to recover. 8969 */ 8970 pring = &psli->ring[psli->fcp_ring]; 8971 lpfc_sli_abort_iocb_ring(phba, pring); 8972 } 8973 8974 /** 8975 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 8976 * @phba: pointer to lpfc hba data structure. 8977 * 8978 * This routine is called to prepare the SLI4 device for PCI slot reset. It 8979 * disables the device interrupt and pci device, and aborts the internal FCP 8980 * pending I/Os. 8981 **/ 8982 static void 8983 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 8984 { 8985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8986 "2826 PCI channel disable preparing for reset\n"); 8987 8988 /* Block any management I/Os to the device */ 8989 lpfc_block_mgmt_io(phba); 8990 8991 /* Block all SCSI devices' I/Os on the host */ 8992 lpfc_scsi_dev_block(phba); 8993 8994 /* stop all timers */ 8995 lpfc_stop_hba_timers(phba); 8996 8997 /* Disable interrupt and pci device */ 8998 lpfc_sli4_disable_intr(phba); 8999 pci_disable_device(phba->pcidev); 9000 9001 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9002 lpfc_sli_flush_fcp_rings(phba); 9003 } 9004 9005 /** 9006 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9007 * @phba: pointer to lpfc hba data structure. 9008 * 9009 * This routine is called to prepare the SLI4 device for PCI slot permanently 9010 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9011 * pending I/Os. 9012 **/ 9013 static void 9014 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9015 { 9016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9017 "2827 PCI channel permanent disable for failure\n"); 9018 9019 /* Block all SCSI devices' I/Os on the host */ 9020 lpfc_scsi_dev_block(phba); 9021 9022 /* stop all timers */ 9023 lpfc_stop_hba_timers(phba); 9024 9025 /* Clean up all driver's outstanding SCSI I/Os */ 9026 lpfc_sli_flush_fcp_rings(phba); 9027 } 9028 9029 /** 9030 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9031 * @pdev: pointer to PCI device. 9032 * @state: the current PCI connection state. 9033 * 9034 * This routine is called from the PCI subsystem for error handling to device 9035 * with SLI-4 interface spec. This function is called by the PCI subsystem 9036 * after a PCI bus error affecting this device has been detected. When this 9037 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9038 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9039 * for the PCI subsystem to perform proper recovery as desired. 9040 * 9041 * Return codes 9042 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9043 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9044 **/ 9045 static pci_ers_result_t 9046 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9047 { 9048 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9049 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9050 9051 switch (state) { 9052 case pci_channel_io_normal: 9053 /* Non-fatal error, prepare for recovery */ 9054 lpfc_sli4_prep_dev_for_recover(phba); 9055 return PCI_ERS_RESULT_CAN_RECOVER; 9056 case pci_channel_io_frozen: 9057 /* Fatal error, prepare for slot reset */ 9058 lpfc_sli4_prep_dev_for_reset(phba); 9059 return PCI_ERS_RESULT_NEED_RESET; 9060 case pci_channel_io_perm_failure: 9061 /* Permanent failure, prepare for device down */ 9062 lpfc_sli4_prep_dev_for_perm_failure(phba); 9063 return PCI_ERS_RESULT_DISCONNECT; 9064 default: 9065 /* Unknown state, prepare and request slot reset */ 9066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9067 "2825 Unknown PCI error state: x%x\n", state); 9068 lpfc_sli4_prep_dev_for_reset(phba); 9069 return PCI_ERS_RESULT_NEED_RESET; 9070 } 9071 } 9072 9073 /** 9074 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9075 * @pdev: pointer to PCI device. 9076 * 9077 * This routine is called from the PCI subsystem for error handling to device 9078 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9079 * restart the PCI card from scratch, as if from a cold-boot. During the 9080 * PCI subsystem error recovery, after the driver returns 9081 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9082 * recovery and then call this routine before calling the .resume method to 9083 * recover the device. This function will initialize the HBA device, enable 9084 * the interrupt, but it will just put the HBA to offline state without 9085 * passing any I/O traffic. 9086 * 9087 * Return codes 9088 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9089 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9090 */ 9091 static pci_ers_result_t 9092 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9093 { 9094 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9095 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9096 struct lpfc_sli *psli = &phba->sli; 9097 uint32_t intr_mode; 9098 9099 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9100 if (pci_enable_device_mem(pdev)) { 9101 printk(KERN_ERR "lpfc: Cannot re-enable " 9102 "PCI device after reset.\n"); 9103 return PCI_ERS_RESULT_DISCONNECT; 9104 } 9105 9106 pci_restore_state(pdev); 9107 if (pdev->is_busmaster) 9108 pci_set_master(pdev); 9109 9110 spin_lock_irq(&phba->hbalock); 9111 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9112 spin_unlock_irq(&phba->hbalock); 9113 9114 /* Configure and enable interrupt */ 9115 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9116 if (intr_mode == LPFC_INTR_ERROR) { 9117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9118 "2824 Cannot re-enable interrupt after " 9119 "slot reset.\n"); 9120 return PCI_ERS_RESULT_DISCONNECT; 9121 } else 9122 phba->intr_mode = intr_mode; 9123 9124 /* Log the current active interrupt mode */ 9125 lpfc_log_intr_mode(phba, phba->intr_mode); 9126 9127 return PCI_ERS_RESULT_RECOVERED; 9128 } 9129 9130 /** 9131 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9132 * @pdev: pointer to PCI device 9133 * 9134 * This routine is called from the PCI subsystem for error handling to device 9135 * with SLI-4 interface spec. It is called when kernel error recovery tells 9136 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9137 * error recovery. After this call, traffic can start to flow from this device 9138 * again. 9139 **/ 9140 static void 9141 lpfc_io_resume_s4(struct pci_dev *pdev) 9142 { 9143 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9144 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9145 9146 /* 9147 * In case of slot reset, as function reset is performed through 9148 * mailbox command which needs DMA to be enabled, this operation 9149 * has to be moved to the io resume phase. Taking device offline 9150 * will perform the necessary cleanup. 9151 */ 9152 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9153 /* Perform device reset */ 9154 lpfc_offline_prep(phba); 9155 lpfc_offline(phba); 9156 lpfc_sli_brdrestart(phba); 9157 /* Bring the device back online */ 9158 lpfc_online(phba); 9159 } 9160 9161 /* Clean up Advanced Error Reporting (AER) if needed */ 9162 if (phba->hba_flag & HBA_AER_ENABLED) 9163 pci_cleanup_aer_uncorrect_error_status(pdev); 9164 } 9165 9166 /** 9167 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9168 * @pdev: pointer to PCI device 9169 * @pid: pointer to PCI device identifier 9170 * 9171 * This routine is to be registered to the kernel's PCI subsystem. When an 9172 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9173 * at PCI device-specific information of the device and driver to see if the 9174 * driver state that it can support this kind of device. If the match is 9175 * successful, the driver core invokes this routine. This routine dispatches 9176 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9177 * do all the initialization that it needs to do to handle the HBA device 9178 * properly. 9179 * 9180 * Return code 9181 * 0 - driver can claim the device 9182 * negative value - driver can not claim the device 9183 **/ 9184 static int __devinit 9185 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9186 { 9187 int rc; 9188 struct lpfc_sli_intf intf; 9189 9190 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9191 return -ENODEV; 9192 9193 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9194 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9195 rc = lpfc_pci_probe_one_s4(pdev, pid); 9196 else 9197 rc = lpfc_pci_probe_one_s3(pdev, pid); 9198 9199 return rc; 9200 } 9201 9202 /** 9203 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9204 * @pdev: pointer to PCI device 9205 * 9206 * This routine is to be registered to the kernel's PCI subsystem. When an 9207 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9208 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9209 * remove routine, which will perform all the necessary cleanup for the 9210 * device to be removed from the PCI subsystem properly. 9211 **/ 9212 static void __devexit 9213 lpfc_pci_remove_one(struct pci_dev *pdev) 9214 { 9215 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9216 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9217 9218 switch (phba->pci_dev_grp) { 9219 case LPFC_PCI_DEV_LP: 9220 lpfc_pci_remove_one_s3(pdev); 9221 break; 9222 case LPFC_PCI_DEV_OC: 9223 lpfc_pci_remove_one_s4(pdev); 9224 break; 9225 default: 9226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9227 "1424 Invalid PCI device group: 0x%x\n", 9228 phba->pci_dev_grp); 9229 break; 9230 } 9231 return; 9232 } 9233 9234 /** 9235 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9236 * @pdev: pointer to PCI device 9237 * @msg: power management message 9238 * 9239 * This routine is to be registered to the kernel's PCI subsystem to support 9240 * system Power Management (PM). When PM invokes this method, it dispatches 9241 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9242 * suspend the device. 9243 * 9244 * Return code 9245 * 0 - driver suspended the device 9246 * Error otherwise 9247 **/ 9248 static int 9249 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9250 { 9251 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9252 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9253 int rc = -ENODEV; 9254 9255 switch (phba->pci_dev_grp) { 9256 case LPFC_PCI_DEV_LP: 9257 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9258 break; 9259 case LPFC_PCI_DEV_OC: 9260 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9261 break; 9262 default: 9263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9264 "1425 Invalid PCI device group: 0x%x\n", 9265 phba->pci_dev_grp); 9266 break; 9267 } 9268 return rc; 9269 } 9270 9271 /** 9272 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9273 * @pdev: pointer to PCI device 9274 * 9275 * This routine is to be registered to the kernel's PCI subsystem to support 9276 * system Power Management (PM). When PM invokes this method, it dispatches 9277 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9278 * resume the device. 9279 * 9280 * Return code 9281 * 0 - driver suspended the device 9282 * Error otherwise 9283 **/ 9284 static int 9285 lpfc_pci_resume_one(struct pci_dev *pdev) 9286 { 9287 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9288 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9289 int rc = -ENODEV; 9290 9291 switch (phba->pci_dev_grp) { 9292 case LPFC_PCI_DEV_LP: 9293 rc = lpfc_pci_resume_one_s3(pdev); 9294 break; 9295 case LPFC_PCI_DEV_OC: 9296 rc = lpfc_pci_resume_one_s4(pdev); 9297 break; 9298 default: 9299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9300 "1426 Invalid PCI device group: 0x%x\n", 9301 phba->pci_dev_grp); 9302 break; 9303 } 9304 return rc; 9305 } 9306 9307 /** 9308 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9309 * @pdev: pointer to PCI device. 9310 * @state: the current PCI connection state. 9311 * 9312 * This routine is registered to the PCI subsystem for error handling. This 9313 * function is called by the PCI subsystem after a PCI bus error affecting 9314 * this device has been detected. When this routine is invoked, it dispatches 9315 * the action to the proper SLI-3 or SLI-4 device error detected handling 9316 * routine, which will perform the proper error detected operation. 9317 * 9318 * Return codes 9319 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9320 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9321 **/ 9322 static pci_ers_result_t 9323 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9324 { 9325 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9326 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9327 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9328 9329 switch (phba->pci_dev_grp) { 9330 case LPFC_PCI_DEV_LP: 9331 rc = lpfc_io_error_detected_s3(pdev, state); 9332 break; 9333 case LPFC_PCI_DEV_OC: 9334 rc = lpfc_io_error_detected_s4(pdev, state); 9335 break; 9336 default: 9337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9338 "1427 Invalid PCI device group: 0x%x\n", 9339 phba->pci_dev_grp); 9340 break; 9341 } 9342 return rc; 9343 } 9344 9345 /** 9346 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9347 * @pdev: pointer to PCI device. 9348 * 9349 * This routine is registered to the PCI subsystem for error handling. This 9350 * function is called after PCI bus has been reset to restart the PCI card 9351 * from scratch, as if from a cold-boot. When this routine is invoked, it 9352 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 9353 * routine, which will perform the proper device reset. 9354 * 9355 * Return codes 9356 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9357 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9358 **/ 9359 static pci_ers_result_t 9360 lpfc_io_slot_reset(struct pci_dev *pdev) 9361 { 9362 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9363 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9364 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9365 9366 switch (phba->pci_dev_grp) { 9367 case LPFC_PCI_DEV_LP: 9368 rc = lpfc_io_slot_reset_s3(pdev); 9369 break; 9370 case LPFC_PCI_DEV_OC: 9371 rc = lpfc_io_slot_reset_s4(pdev); 9372 break; 9373 default: 9374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9375 "1428 Invalid PCI device group: 0x%x\n", 9376 phba->pci_dev_grp); 9377 break; 9378 } 9379 return rc; 9380 } 9381 9382 /** 9383 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 9384 * @pdev: pointer to PCI device 9385 * 9386 * This routine is registered to the PCI subsystem for error handling. It 9387 * is called when kernel error recovery tells the lpfc driver that it is 9388 * OK to resume normal PCI operation after PCI bus error recovery. When 9389 * this routine is invoked, it dispatches the action to the proper SLI-3 9390 * or SLI-4 device io_resume routine, which will resume the device operation. 9391 **/ 9392 static void 9393 lpfc_io_resume(struct pci_dev *pdev) 9394 { 9395 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9396 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9397 9398 switch (phba->pci_dev_grp) { 9399 case LPFC_PCI_DEV_LP: 9400 lpfc_io_resume_s3(pdev); 9401 break; 9402 case LPFC_PCI_DEV_OC: 9403 lpfc_io_resume_s4(pdev); 9404 break; 9405 default: 9406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9407 "1429 Invalid PCI device group: 0x%x\n", 9408 phba->pci_dev_grp); 9409 break; 9410 } 9411 return; 9412 } 9413 9414 static struct pci_device_id lpfc_id_table[] = { 9415 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 9416 PCI_ANY_ID, PCI_ANY_ID, }, 9417 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 9418 PCI_ANY_ID, PCI_ANY_ID, }, 9419 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 9420 PCI_ANY_ID, PCI_ANY_ID, }, 9421 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 9422 PCI_ANY_ID, PCI_ANY_ID, }, 9423 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 9424 PCI_ANY_ID, PCI_ANY_ID, }, 9425 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 9426 PCI_ANY_ID, PCI_ANY_ID, }, 9427 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9428 PCI_ANY_ID, PCI_ANY_ID, }, 9429 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9430 PCI_ANY_ID, PCI_ANY_ID, }, 9431 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9432 PCI_ANY_ID, PCI_ANY_ID, }, 9433 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9434 PCI_ANY_ID, PCI_ANY_ID, }, 9435 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9436 PCI_ANY_ID, PCI_ANY_ID, }, 9437 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9438 PCI_ANY_ID, PCI_ANY_ID, }, 9439 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9440 PCI_ANY_ID, PCI_ANY_ID, }, 9441 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9442 PCI_ANY_ID, PCI_ANY_ID, }, 9443 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9444 PCI_ANY_ID, PCI_ANY_ID, }, 9445 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9446 PCI_ANY_ID, PCI_ANY_ID, }, 9447 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9448 PCI_ANY_ID, PCI_ANY_ID, }, 9449 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9450 PCI_ANY_ID, PCI_ANY_ID, }, 9451 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9452 PCI_ANY_ID, PCI_ANY_ID, }, 9453 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9454 PCI_ANY_ID, PCI_ANY_ID, }, 9455 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9456 PCI_ANY_ID, PCI_ANY_ID, }, 9457 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9458 PCI_ANY_ID, PCI_ANY_ID, }, 9459 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9460 PCI_ANY_ID, PCI_ANY_ID, }, 9461 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9462 PCI_ANY_ID, PCI_ANY_ID, }, 9463 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9464 PCI_ANY_ID, PCI_ANY_ID, }, 9465 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9466 PCI_ANY_ID, PCI_ANY_ID, }, 9467 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9468 PCI_ANY_ID, PCI_ANY_ID, }, 9469 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9470 PCI_ANY_ID, PCI_ANY_ID, }, 9471 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9472 PCI_ANY_ID, PCI_ANY_ID, }, 9473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9474 PCI_ANY_ID, PCI_ANY_ID, }, 9475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9476 PCI_ANY_ID, PCI_ANY_ID, }, 9477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9478 PCI_ANY_ID, PCI_ANY_ID, }, 9479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9480 PCI_ANY_ID, PCI_ANY_ID, }, 9481 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9482 PCI_ANY_ID, PCI_ANY_ID, }, 9483 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9484 PCI_ANY_ID, PCI_ANY_ID, }, 9485 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9486 PCI_ANY_ID, PCI_ANY_ID, }, 9487 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9488 PCI_ANY_ID, PCI_ANY_ID, }, 9489 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9490 PCI_ANY_ID, PCI_ANY_ID, }, 9491 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9492 PCI_ANY_ID, PCI_ANY_ID, }, 9493 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9494 PCI_ANY_ID, PCI_ANY_ID, }, 9495 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9496 PCI_ANY_ID, PCI_ANY_ID, }, 9497 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9498 PCI_ANY_ID, PCI_ANY_ID, }, 9499 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9500 PCI_ANY_ID, PCI_ANY_ID, }, 9501 { 0 } 9502 }; 9503 9504 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9505 9506 static struct pci_error_handlers lpfc_err_handler = { 9507 .error_detected = lpfc_io_error_detected, 9508 .slot_reset = lpfc_io_slot_reset, 9509 .resume = lpfc_io_resume, 9510 }; 9511 9512 static struct pci_driver lpfc_driver = { 9513 .name = LPFC_DRIVER_NAME, 9514 .id_table = lpfc_id_table, 9515 .probe = lpfc_pci_probe_one, 9516 .remove = __devexit_p(lpfc_pci_remove_one), 9517 .suspend = lpfc_pci_suspend_one, 9518 .resume = lpfc_pci_resume_one, 9519 .err_handler = &lpfc_err_handler, 9520 }; 9521 9522 /** 9523 * lpfc_init - lpfc module initialization routine 9524 * 9525 * This routine is to be invoked when the lpfc module is loaded into the 9526 * kernel. The special kernel macro module_init() is used to indicate the 9527 * role of this routine to the kernel as lpfc module entry point. 9528 * 9529 * Return codes 9530 * 0 - successful 9531 * -ENOMEM - FC attach transport failed 9532 * all others - failed 9533 */ 9534 static int __init 9535 lpfc_init(void) 9536 { 9537 int error = 0; 9538 9539 printk(LPFC_MODULE_DESC "\n"); 9540 printk(LPFC_COPYRIGHT "\n"); 9541 9542 if (lpfc_enable_npiv) { 9543 lpfc_transport_functions.vport_create = lpfc_vport_create; 9544 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9545 } 9546 lpfc_transport_template = 9547 fc_attach_transport(&lpfc_transport_functions); 9548 if (lpfc_transport_template == NULL) 9549 return -ENOMEM; 9550 if (lpfc_enable_npiv) { 9551 lpfc_vport_transport_template = 9552 fc_attach_transport(&lpfc_vport_transport_functions); 9553 if (lpfc_vport_transport_template == NULL) { 9554 fc_release_transport(lpfc_transport_template); 9555 return -ENOMEM; 9556 } 9557 } 9558 error = pci_register_driver(&lpfc_driver); 9559 if (error) { 9560 fc_release_transport(lpfc_transport_template); 9561 if (lpfc_enable_npiv) 9562 fc_release_transport(lpfc_vport_transport_template); 9563 } 9564 9565 return error; 9566 } 9567 9568 /** 9569 * lpfc_exit - lpfc module removal routine 9570 * 9571 * This routine is invoked when the lpfc module is removed from the kernel. 9572 * The special kernel macro module_exit() is used to indicate the role of 9573 * this routine to the kernel as lpfc module exit point. 9574 */ 9575 static void __exit 9576 lpfc_exit(void) 9577 { 9578 pci_unregister_driver(&lpfc_driver); 9579 fc_release_transport(lpfc_transport_template); 9580 if (lpfc_enable_npiv) 9581 fc_release_transport(lpfc_vport_transport_template); 9582 if (_dump_buf_data) { 9583 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9584 "_dump_buf_data at 0x%p\n", 9585 (1L << _dump_buf_data_order), _dump_buf_data); 9586 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9587 } 9588 9589 if (_dump_buf_dif) { 9590 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9591 "_dump_buf_dif at 0x%p\n", 9592 (1L << _dump_buf_dif_order), _dump_buf_dif); 9593 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9594 } 9595 } 9596 9597 module_init(lpfc_init); 9598 module_exit(lpfc_exit); 9599 MODULE_LICENSE("GPL"); 9600 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9601 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9602 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9603