1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2009 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 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_device.h> 34 #include <scsi/scsi_host.h> 35 #include <scsi/scsi_transport_fc.h> 36 37 #include "lpfc_hw4.h" 38 #include "lpfc_hw.h" 39 #include "lpfc_sli.h" 40 #include "lpfc_sli4.h" 41 #include "lpfc_nl.h" 42 #include "lpfc_disc.h" 43 #include "lpfc_scsi.h" 44 #include "lpfc.h" 45 #include "lpfc_logmsg.h" 46 #include "lpfc_crtn.h" 47 #include "lpfc_vport.h" 48 #include "lpfc_version.h" 49 50 char *_dump_buf_data; 51 unsigned long _dump_buf_data_order; 52 char *_dump_buf_dif; 53 unsigned long _dump_buf_dif_order; 54 spinlock_t _dump_buf_lock; 55 56 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 57 static int lpfc_post_rcv_buf(struct lpfc_hba *); 58 static int lpfc_sli4_queue_create(struct lpfc_hba *); 59 static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 60 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 61 static int lpfc_setup_endian_order(struct lpfc_hba *); 62 static int lpfc_sli4_read_config(struct lpfc_hba *); 63 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 64 static void lpfc_free_sgl_list(struct lpfc_hba *); 65 static int lpfc_init_sgl_list(struct lpfc_hba *); 66 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 67 static void lpfc_free_active_sgl(struct lpfc_hba *); 68 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 69 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 70 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 71 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 72 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 73 74 static struct scsi_transport_template *lpfc_transport_template = NULL; 75 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 76 static DEFINE_IDR(lpfc_hba_index); 77 78 /** 79 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 80 * @phba: pointer to lpfc hba data structure. 81 * 82 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 83 * mailbox command. It retrieves the revision information from the HBA and 84 * collects the Vital Product Data (VPD) about the HBA for preparing the 85 * configuration of the HBA. 86 * 87 * Return codes: 88 * 0 - success. 89 * -ERESTART - requests the SLI layer to reset the HBA and try again. 90 * Any other value - indicates an error. 91 **/ 92 int 93 lpfc_config_port_prep(struct lpfc_hba *phba) 94 { 95 lpfc_vpd_t *vp = &phba->vpd; 96 int i = 0, rc; 97 LPFC_MBOXQ_t *pmb; 98 MAILBOX_t *mb; 99 char *lpfc_vpd_data = NULL; 100 uint16_t offset = 0; 101 static char licensed[56] = 102 "key unlock for use with gnu public licensed code only\0"; 103 static int init_key = 1; 104 105 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 106 if (!pmb) { 107 phba->link_state = LPFC_HBA_ERROR; 108 return -ENOMEM; 109 } 110 111 mb = &pmb->u.mb; 112 phba->link_state = LPFC_INIT_MBX_CMDS; 113 114 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 115 if (init_key) { 116 uint32_t *ptext = (uint32_t *) licensed; 117 118 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 119 *ptext = cpu_to_be32(*ptext); 120 init_key = 0; 121 } 122 123 lpfc_read_nv(phba, pmb); 124 memset((char*)mb->un.varRDnvp.rsvd3, 0, 125 sizeof (mb->un.varRDnvp.rsvd3)); 126 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 127 sizeof (licensed)); 128 129 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 130 131 if (rc != MBX_SUCCESS) { 132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 133 "0324 Config Port initialization " 134 "error, mbxCmd x%x READ_NVPARM, " 135 "mbxStatus x%x\n", 136 mb->mbxCommand, mb->mbxStatus); 137 mempool_free(pmb, phba->mbox_mem_pool); 138 return -ERESTART; 139 } 140 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 141 sizeof(phba->wwnn)); 142 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 143 sizeof(phba->wwpn)); 144 } 145 146 phba->sli3_options = 0x0; 147 148 /* Setup and issue mailbox READ REV command */ 149 lpfc_read_rev(phba, pmb); 150 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 151 if (rc != MBX_SUCCESS) { 152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 153 "0439 Adapter failed to init, mbxCmd x%x " 154 "READ_REV, mbxStatus x%x\n", 155 mb->mbxCommand, mb->mbxStatus); 156 mempool_free( pmb, phba->mbox_mem_pool); 157 return -ERESTART; 158 } 159 160 161 /* 162 * The value of rr must be 1 since the driver set the cv field to 1. 163 * This setting requires the FW to set all revision fields. 164 */ 165 if (mb->un.varRdRev.rr == 0) { 166 vp->rev.rBit = 0; 167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 168 "0440 Adapter failed to init, READ_REV has " 169 "missing revision information.\n"); 170 mempool_free(pmb, phba->mbox_mem_pool); 171 return -ERESTART; 172 } 173 174 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 175 mempool_free(pmb, phba->mbox_mem_pool); 176 return -EINVAL; 177 } 178 179 /* Save information as VPD data */ 180 vp->rev.rBit = 1; 181 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 182 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 183 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 184 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 185 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 186 vp->rev.biuRev = mb->un.varRdRev.biuRev; 187 vp->rev.smRev = mb->un.varRdRev.smRev; 188 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 189 vp->rev.endecRev = mb->un.varRdRev.endecRev; 190 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 191 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 192 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 193 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 194 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 195 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 196 197 /* If the sli feature level is less then 9, we must 198 * tear down all RPIs and VPIs on link down if NPIV 199 * is enabled. 200 */ 201 if (vp->rev.feaLevelHigh < 9) 202 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 203 204 if (lpfc_is_LC_HBA(phba->pcidev->device)) 205 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 206 sizeof (phba->RandomData)); 207 208 /* Get adapter VPD information */ 209 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 210 if (!lpfc_vpd_data) 211 goto out_free_mbox; 212 213 do { 214 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 216 217 if (rc != MBX_SUCCESS) { 218 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 219 "0441 VPD not present on adapter, " 220 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 221 mb->mbxCommand, mb->mbxStatus); 222 mb->un.varDmp.word_cnt = 0; 223 } 224 /* dump mem may return a zero when finished or we got a 225 * mailbox error, either way we are done. 226 */ 227 if (mb->un.varDmp.word_cnt == 0) 228 break; 229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 232 lpfc_vpd_data + offset, 233 mb->un.varDmp.word_cnt); 234 offset += mb->un.varDmp.word_cnt; 235 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 236 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 237 238 kfree(lpfc_vpd_data); 239 out_free_mbox: 240 mempool_free(pmb, phba->mbox_mem_pool); 241 return 0; 242 } 243 244 /** 245 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 246 * @phba: pointer to lpfc hba data structure. 247 * @pmboxq: pointer to the driver internal queue element for mailbox command. 248 * 249 * This is the completion handler for driver's configuring asynchronous event 250 * mailbox command to the device. If the mailbox command returns successfully, 251 * it will set internal async event support flag to 1; otherwise, it will 252 * set internal async event support flag to 0. 253 **/ 254 static void 255 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 256 { 257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 258 phba->temp_sensor_support = 1; 259 else 260 phba->temp_sensor_support = 0; 261 mempool_free(pmboxq, phba->mbox_mem_pool); 262 return; 263 } 264 265 /** 266 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 267 * @phba: pointer to lpfc hba data structure. 268 * @pmboxq: pointer to the driver internal queue element for mailbox command. 269 * 270 * This is the completion handler for dump mailbox command for getting 271 * wake up parameters. When this command complete, the response contain 272 * Option rom version of the HBA. This function translate the version number 273 * into a human readable string and store it in OptionROMVersion. 274 **/ 275 static void 276 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 277 { 278 struct prog_id *prg; 279 uint32_t prog_id_word; 280 char dist = ' '; 281 /* character array used for decoding dist type. */ 282 char dist_char[] = "nabx"; 283 284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 285 mempool_free(pmboxq, phba->mbox_mem_pool); 286 return; 287 } 288 289 prg = (struct prog_id *) &prog_id_word; 290 291 /* word 7 contain option rom version */ 292 prog_id_word = pmboxq->u.mb.un.varWords[7]; 293 294 /* Decode the Option rom version word to a readable string */ 295 if (prg->dist < 4) 296 dist = dist_char[prg->dist]; 297 298 if ((prg->dist == 3) && (prg->num == 0)) 299 sprintf(phba->OptionROMVersion, "%d.%d%d", 300 prg->ver, prg->rev, prg->lev); 301 else 302 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 303 prg->ver, prg->rev, prg->lev, 304 dist, prg->num); 305 mempool_free(pmboxq, phba->mbox_mem_pool); 306 return; 307 } 308 309 /** 310 * lpfc_config_port_post - Perform lpfc initialization after config port 311 * @phba: pointer to lpfc hba data structure. 312 * 313 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 314 * command call. It performs all internal resource and state setups on the 315 * port: post IOCB buffers, enable appropriate host interrupt attentions, 316 * ELS ring timers, etc. 317 * 318 * Return codes 319 * 0 - success. 320 * Any other value - error. 321 **/ 322 int 323 lpfc_config_port_post(struct lpfc_hba *phba) 324 { 325 struct lpfc_vport *vport = phba->pport; 326 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 327 LPFC_MBOXQ_t *pmb; 328 MAILBOX_t *mb; 329 struct lpfc_dmabuf *mp; 330 struct lpfc_sli *psli = &phba->sli; 331 uint32_t status, timeout; 332 int i, j; 333 int rc; 334 335 spin_lock_irq(&phba->hbalock); 336 /* 337 * If the Config port completed correctly the HBA is not 338 * over heated any more. 339 */ 340 if (phba->over_temp_state == HBA_OVER_TEMP) 341 phba->over_temp_state = HBA_NORMAL_TEMP; 342 spin_unlock_irq(&phba->hbalock); 343 344 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 345 if (!pmb) { 346 phba->link_state = LPFC_HBA_ERROR; 347 return -ENOMEM; 348 } 349 mb = &pmb->u.mb; 350 351 /* Get login parameters for NID. */ 352 lpfc_read_sparam(phba, pmb, 0); 353 pmb->vport = vport; 354 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 356 "0448 Adapter failed init, mbxCmd x%x " 357 "READ_SPARM mbxStatus x%x\n", 358 mb->mbxCommand, mb->mbxStatus); 359 phba->link_state = LPFC_HBA_ERROR; 360 mp = (struct lpfc_dmabuf *) pmb->context1; 361 mempool_free( pmb, phba->mbox_mem_pool); 362 lpfc_mbuf_free(phba, mp->virt, mp->phys); 363 kfree(mp); 364 return -EIO; 365 } 366 367 mp = (struct lpfc_dmabuf *) pmb->context1; 368 369 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 370 lpfc_mbuf_free(phba, mp->virt, mp->phys); 371 kfree(mp); 372 pmb->context1 = NULL; 373 374 if (phba->cfg_soft_wwnn) 375 u64_to_wwn(phba->cfg_soft_wwnn, 376 vport->fc_sparam.nodeName.u.wwn); 377 if (phba->cfg_soft_wwpn) 378 u64_to_wwn(phba->cfg_soft_wwpn, 379 vport->fc_sparam.portName.u.wwn); 380 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 381 sizeof (struct lpfc_name)); 382 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 383 sizeof (struct lpfc_name)); 384 385 /* Update the fc_host data structures with new wwn. */ 386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 388 fc_host_max_npiv_vports(shost) = phba->max_vpi; 389 390 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 391 /* This should be consolidated into parse_vpd ? - mr */ 392 if (phba->SerialNumber[0] == 0) { 393 uint8_t *outptr; 394 395 outptr = &vport->fc_nodename.u.s.IEEE[0]; 396 for (i = 0; i < 12; i++) { 397 status = *outptr++; 398 j = ((status & 0xf0) >> 4); 399 if (j <= 9) 400 phba->SerialNumber[i] = 401 (char)((uint8_t) 0x30 + (uint8_t) j); 402 else 403 phba->SerialNumber[i] = 404 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 405 i++; 406 j = (status & 0xf); 407 if (j <= 9) 408 phba->SerialNumber[i] = 409 (char)((uint8_t) 0x30 + (uint8_t) j); 410 else 411 phba->SerialNumber[i] = 412 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 413 } 414 } 415 416 lpfc_read_config(phba, pmb); 417 pmb->vport = vport; 418 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 420 "0453 Adapter failed to init, mbxCmd x%x " 421 "READ_CONFIG, mbxStatus x%x\n", 422 mb->mbxCommand, mb->mbxStatus); 423 phba->link_state = LPFC_HBA_ERROR; 424 mempool_free( pmb, phba->mbox_mem_pool); 425 return -EIO; 426 } 427 428 /* Check if the port is disabled */ 429 lpfc_sli_read_link_ste(phba); 430 431 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 432 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 433 phba->cfg_hba_queue_depth = 434 (mb->un.varRdConfig.max_xri + 1) - 435 lpfc_sli4_get_els_iocb_cnt(phba); 436 437 phba->lmt = mb->un.varRdConfig.lmt; 438 439 /* Get the default values for Model Name and Description */ 440 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 441 442 if ((phba->cfg_link_speed > LINK_SPEED_10G) 443 || ((phba->cfg_link_speed == LINK_SPEED_1G) 444 && !(phba->lmt & LMT_1Gb)) 445 || ((phba->cfg_link_speed == LINK_SPEED_2G) 446 && !(phba->lmt & LMT_2Gb)) 447 || ((phba->cfg_link_speed == LINK_SPEED_4G) 448 && !(phba->lmt & LMT_4Gb)) 449 || ((phba->cfg_link_speed == LINK_SPEED_8G) 450 && !(phba->lmt & LMT_8Gb)) 451 || ((phba->cfg_link_speed == LINK_SPEED_10G) 452 && !(phba->lmt & LMT_10Gb))) { 453 /* Reset link speed to auto */ 454 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT, 455 "1302 Invalid speed for this board: " 456 "Reset link speed to auto: x%x\n", 457 phba->cfg_link_speed); 458 phba->cfg_link_speed = LINK_SPEED_AUTO; 459 } 460 461 phba->link_state = LPFC_LINK_DOWN; 462 463 /* Only process IOCBs on ELS ring till hba_state is READY */ 464 if (psli->ring[psli->extra_ring].cmdringaddr) 465 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 466 if (psli->ring[psli->fcp_ring].cmdringaddr) 467 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 468 if (psli->ring[psli->next_ring].cmdringaddr) 469 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 470 471 /* Post receive buffers for desired rings */ 472 if (phba->sli_rev != 3) 473 lpfc_post_rcv_buf(phba); 474 475 /* 476 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 477 */ 478 if (phba->intr_type == MSIX) { 479 rc = lpfc_config_msi(phba, pmb); 480 if (rc) { 481 mempool_free(pmb, phba->mbox_mem_pool); 482 return -EIO; 483 } 484 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 485 if (rc != MBX_SUCCESS) { 486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 487 "0352 Config MSI mailbox command " 488 "failed, mbxCmd x%x, mbxStatus x%x\n", 489 pmb->u.mb.mbxCommand, 490 pmb->u.mb.mbxStatus); 491 mempool_free(pmb, phba->mbox_mem_pool); 492 return -EIO; 493 } 494 } 495 496 spin_lock_irq(&phba->hbalock); 497 /* Initialize ERATT handling flag */ 498 phba->hba_flag &= ~HBA_ERATT_HANDLED; 499 500 /* Enable appropriate host interrupts */ 501 status = readl(phba->HCregaddr); 502 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 503 if (psli->num_rings > 0) 504 status |= HC_R0INT_ENA; 505 if (psli->num_rings > 1) 506 status |= HC_R1INT_ENA; 507 if (psli->num_rings > 2) 508 status |= HC_R2INT_ENA; 509 if (psli->num_rings > 3) 510 status |= HC_R3INT_ENA; 511 512 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 513 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 514 status &= ~(HC_R0INT_ENA); 515 516 writel(status, phba->HCregaddr); 517 readl(phba->HCregaddr); /* flush */ 518 spin_unlock_irq(&phba->hbalock); 519 520 /* Set up ring-0 (ELS) timer */ 521 timeout = phba->fc_ratov * 2; 522 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 523 /* Set up heart beat (HB) timer */ 524 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 525 phba->hb_outstanding = 0; 526 phba->last_completion_time = jiffies; 527 /* Set up error attention (ERATT) polling timer */ 528 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 529 530 if (phba->hba_flag & LINK_DISABLED) { 531 lpfc_printf_log(phba, 532 KERN_ERR, LOG_INIT, 533 "2598 Adapter Link is disabled.\n"); 534 lpfc_down_link(phba, pmb); 535 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 536 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 537 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 538 lpfc_printf_log(phba, 539 KERN_ERR, LOG_INIT, 540 "2599 Adapter failed to issue DOWN_LINK" 541 " mbox command rc 0x%x\n", rc); 542 543 mempool_free(pmb, phba->mbox_mem_pool); 544 return -EIO; 545 } 546 } else { 547 lpfc_init_link(phba, pmb, phba->cfg_topology, 548 phba->cfg_link_speed); 549 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 550 lpfc_set_loopback_flag(phba); 551 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 552 if (rc != MBX_SUCCESS) { 553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 554 "0454 Adapter failed to init, mbxCmd x%x " 555 "INIT_LINK, mbxStatus x%x\n", 556 mb->mbxCommand, mb->mbxStatus); 557 558 /* Clear all interrupt enable conditions */ 559 writel(0, phba->HCregaddr); 560 readl(phba->HCregaddr); /* flush */ 561 /* Clear all pending interrupts */ 562 writel(0xffffffff, phba->HAregaddr); 563 readl(phba->HAregaddr); /* flush */ 564 565 phba->link_state = LPFC_HBA_ERROR; 566 if (rc != MBX_BUSY) 567 mempool_free(pmb, phba->mbox_mem_pool); 568 return -EIO; 569 } 570 } 571 /* MBOX buffer will be freed in mbox compl */ 572 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 573 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 574 pmb->mbox_cmpl = lpfc_config_async_cmpl; 575 pmb->vport = phba->pport; 576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 577 578 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 579 lpfc_printf_log(phba, 580 KERN_ERR, 581 LOG_INIT, 582 "0456 Adapter failed to issue " 583 "ASYNCEVT_ENABLE mbox status x%x\n", 584 rc); 585 mempool_free(pmb, phba->mbox_mem_pool); 586 } 587 588 /* Get Option rom version */ 589 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 590 lpfc_dump_wakeup_param(phba, pmb); 591 pmb->mbox_cmpl = lpfc_dump_wakeup_param_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, KERN_ERR, LOG_INIT, "0435 Adapter failed " 597 "to get Option ROM version status x%x\n", rc); 598 mempool_free(pmb, phba->mbox_mem_pool); 599 } 600 601 return 0; 602 } 603 604 /** 605 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 606 * @phba: pointer to lpfc HBA data structure. 607 * 608 * This routine will do LPFC uninitialization before the HBA is reset when 609 * bringing down the SLI Layer. 610 * 611 * Return codes 612 * 0 - success. 613 * Any other value - error. 614 **/ 615 int 616 lpfc_hba_down_prep(struct lpfc_hba *phba) 617 { 618 struct lpfc_vport **vports; 619 int i; 620 621 if (phba->sli_rev <= LPFC_SLI_REV3) { 622 /* Disable interrupts */ 623 writel(0, phba->HCregaddr); 624 readl(phba->HCregaddr); /* flush */ 625 } 626 627 if (phba->pport->load_flag & FC_UNLOADING) 628 lpfc_cleanup_discovery_resources(phba->pport); 629 else { 630 vports = lpfc_create_vport_work_array(phba); 631 if (vports != NULL) 632 for (i = 0; i <= phba->max_vports && 633 vports[i] != NULL; i++) 634 lpfc_cleanup_discovery_resources(vports[i]); 635 lpfc_destroy_vport_work_array(phba, vports); 636 } 637 return 0; 638 } 639 640 /** 641 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 642 * @phba: pointer to lpfc HBA data structure. 643 * 644 * This routine will do uninitialization after the HBA is reset when bring 645 * down the SLI Layer. 646 * 647 * Return codes 648 * 0 - sucess. 649 * Any other value - error. 650 **/ 651 static int 652 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 653 { 654 struct lpfc_sli *psli = &phba->sli; 655 struct lpfc_sli_ring *pring; 656 struct lpfc_dmabuf *mp, *next_mp; 657 LIST_HEAD(completions); 658 int i; 659 660 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 661 lpfc_sli_hbqbuf_free_all(phba); 662 else { 663 /* Cleanup preposted buffers on the ELS ring */ 664 pring = &psli->ring[LPFC_ELS_RING]; 665 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 666 list_del(&mp->list); 667 pring->postbufq_cnt--; 668 lpfc_mbuf_free(phba, mp->virt, mp->phys); 669 kfree(mp); 670 } 671 } 672 673 spin_lock_irq(&phba->hbalock); 674 for (i = 0; i < psli->num_rings; i++) { 675 pring = &psli->ring[i]; 676 677 /* At this point in time the HBA is either reset or DOA. Either 678 * way, nothing should be on txcmplq as it will NEVER complete. 679 */ 680 list_splice_init(&pring->txcmplq, &completions); 681 pring->txcmplq_cnt = 0; 682 spin_unlock_irq(&phba->hbalock); 683 684 /* Cancel all the IOCBs from the completions list */ 685 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 686 IOERR_SLI_ABORTED); 687 688 lpfc_sli_abort_iocb_ring(phba, pring); 689 spin_lock_irq(&phba->hbalock); 690 } 691 spin_unlock_irq(&phba->hbalock); 692 693 return 0; 694 } 695 /** 696 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 697 * @phba: pointer to lpfc HBA data structure. 698 * 699 * This routine will do uninitialization after the HBA is reset when bring 700 * down the SLI Layer. 701 * 702 * Return codes 703 * 0 - sucess. 704 * Any other value - error. 705 **/ 706 static int 707 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 708 { 709 struct lpfc_scsi_buf *psb, *psb_next; 710 LIST_HEAD(aborts); 711 int ret; 712 unsigned long iflag = 0; 713 ret = lpfc_hba_down_post_s3(phba); 714 if (ret) 715 return ret; 716 /* At this point in time the HBA is either reset or DOA. Either 717 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 718 * on the lpfc_sgl_list so that it can either be freed if the 719 * driver is unloading or reposted if the driver is restarting 720 * the port. 721 */ 722 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 723 /* scsl_buf_list */ 724 /* abts_sgl_list_lock required because worker thread uses this 725 * list. 726 */ 727 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 728 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 729 &phba->sli4_hba.lpfc_sgl_list); 730 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 731 /* abts_scsi_buf_list_lock required because worker thread uses this 732 * list. 733 */ 734 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 735 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 736 &aborts); 737 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 738 spin_unlock_irq(&phba->hbalock); 739 740 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 741 psb->pCmd = NULL; 742 psb->status = IOSTAT_SUCCESS; 743 } 744 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 745 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 746 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 747 return 0; 748 } 749 750 /** 751 * lpfc_hba_down_post - Wrapper func for hba down post routine 752 * @phba: pointer to lpfc HBA data structure. 753 * 754 * This routine wraps the actual SLI3 or SLI4 routine for performing 755 * uninitialization after the HBA is reset when bring down the SLI Layer. 756 * 757 * Return codes 758 * 0 - sucess. 759 * Any other value - error. 760 **/ 761 int 762 lpfc_hba_down_post(struct lpfc_hba *phba) 763 { 764 return (*phba->lpfc_hba_down_post)(phba); 765 } 766 767 /** 768 * lpfc_hb_timeout - The HBA-timer timeout handler 769 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 770 * 771 * This is the HBA-timer timeout handler registered to the lpfc driver. When 772 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 773 * work-port-events bitmap and the worker thread is notified. This timeout 774 * event will be used by the worker thread to invoke the actual timeout 775 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 776 * be performed in the timeout handler and the HBA timeout event bit shall 777 * be cleared by the worker thread after it has taken the event bitmap out. 778 **/ 779 static void 780 lpfc_hb_timeout(unsigned long ptr) 781 { 782 struct lpfc_hba *phba; 783 uint32_t tmo_posted; 784 unsigned long iflag; 785 786 phba = (struct lpfc_hba *)ptr; 787 788 /* Check for heart beat timeout conditions */ 789 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 790 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 791 if (!tmo_posted) 792 phba->pport->work_port_events |= WORKER_HB_TMO; 793 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 794 795 /* Tell the worker thread there is work to do */ 796 if (!tmo_posted) 797 lpfc_worker_wake_up(phba); 798 return; 799 } 800 801 /** 802 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 803 * @phba: pointer to lpfc hba data structure. 804 * @pmboxq: pointer to the driver internal queue element for mailbox command. 805 * 806 * This is the callback function to the lpfc heart-beat mailbox command. 807 * If configured, the lpfc driver issues the heart-beat mailbox command to 808 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 809 * heart-beat mailbox command is issued, the driver shall set up heart-beat 810 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 811 * heart-beat outstanding state. Once the mailbox command comes back and 812 * no error conditions detected, the heart-beat mailbox command timer is 813 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 814 * state is cleared for the next heart-beat. If the timer expired with the 815 * heart-beat outstanding state set, the driver will put the HBA offline. 816 **/ 817 static void 818 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 819 { 820 unsigned long drvr_flag; 821 822 spin_lock_irqsave(&phba->hbalock, drvr_flag); 823 phba->hb_outstanding = 0; 824 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 825 826 /* Check and reset heart-beat timer is necessary */ 827 mempool_free(pmboxq, phba->mbox_mem_pool); 828 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 829 !(phba->link_state == LPFC_HBA_ERROR) && 830 !(phba->pport->load_flag & FC_UNLOADING)) 831 mod_timer(&phba->hb_tmofunc, 832 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 833 return; 834 } 835 836 /** 837 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 838 * @phba: pointer to lpfc hba data structure. 839 * 840 * This is the actual HBA-timer timeout handler to be invoked by the worker 841 * thread whenever the HBA timer fired and HBA-timeout event posted. This 842 * handler performs any periodic operations needed for the device. If such 843 * periodic event has already been attended to either in the interrupt handler 844 * or by processing slow-ring or fast-ring events within the HBA-timer 845 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 846 * the timer for the next timeout period. If lpfc heart-beat mailbox command 847 * is configured and there is no heart-beat mailbox command outstanding, a 848 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 849 * has been a heart-beat mailbox command outstanding, the HBA shall be put 850 * to offline. 851 **/ 852 void 853 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 854 { 855 LPFC_MBOXQ_t *pmboxq; 856 struct lpfc_dmabuf *buf_ptr; 857 int retval; 858 struct lpfc_sli *psli = &phba->sli; 859 LIST_HEAD(completions); 860 861 if ((phba->link_state == LPFC_HBA_ERROR) || 862 (phba->pport->load_flag & FC_UNLOADING) || 863 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 864 return; 865 866 spin_lock_irq(&phba->pport->work_port_lock); 867 868 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 869 jiffies)) { 870 spin_unlock_irq(&phba->pport->work_port_lock); 871 if (!phba->hb_outstanding) 872 mod_timer(&phba->hb_tmofunc, 873 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 874 else 875 mod_timer(&phba->hb_tmofunc, 876 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 877 return; 878 } 879 spin_unlock_irq(&phba->pport->work_port_lock); 880 881 if (phba->elsbuf_cnt && 882 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 883 spin_lock_irq(&phba->hbalock); 884 list_splice_init(&phba->elsbuf, &completions); 885 phba->elsbuf_cnt = 0; 886 phba->elsbuf_prev_cnt = 0; 887 spin_unlock_irq(&phba->hbalock); 888 889 while (!list_empty(&completions)) { 890 list_remove_head(&completions, buf_ptr, 891 struct lpfc_dmabuf, list); 892 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 893 kfree(buf_ptr); 894 } 895 } 896 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 897 898 /* If there is no heart beat outstanding, issue a heartbeat command */ 899 if (phba->cfg_enable_hba_heartbeat) { 900 if (!phba->hb_outstanding) { 901 pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); 902 if (!pmboxq) { 903 mod_timer(&phba->hb_tmofunc, 904 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 905 return; 906 } 907 908 lpfc_heart_beat(phba, pmboxq); 909 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 910 pmboxq->vport = phba->pport; 911 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); 912 913 if (retval != MBX_BUSY && retval != MBX_SUCCESS) { 914 mempool_free(pmboxq, phba->mbox_mem_pool); 915 mod_timer(&phba->hb_tmofunc, 916 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 917 return; 918 } 919 mod_timer(&phba->hb_tmofunc, 920 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 921 phba->hb_outstanding = 1; 922 return; 923 } else { 924 /* 925 * If heart beat timeout called with hb_outstanding set 926 * we need to take the HBA offline. 927 */ 928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 929 "0459 Adapter heartbeat failure, " 930 "taking this port offline.\n"); 931 932 spin_lock_irq(&phba->hbalock); 933 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 934 spin_unlock_irq(&phba->hbalock); 935 936 lpfc_offline_prep(phba); 937 lpfc_offline(phba); 938 lpfc_unblock_mgmt_io(phba); 939 phba->link_state = LPFC_HBA_ERROR; 940 lpfc_hba_down_post(phba); 941 } 942 } 943 } 944 945 /** 946 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 947 * @phba: pointer to lpfc hba data structure. 948 * 949 * This routine is called to bring the HBA offline when HBA hardware error 950 * other than Port Error 6 has been detected. 951 **/ 952 static void 953 lpfc_offline_eratt(struct lpfc_hba *phba) 954 { 955 struct lpfc_sli *psli = &phba->sli; 956 957 spin_lock_irq(&phba->hbalock); 958 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 959 spin_unlock_irq(&phba->hbalock); 960 lpfc_offline_prep(phba); 961 962 lpfc_offline(phba); 963 lpfc_reset_barrier(phba); 964 spin_lock_irq(&phba->hbalock); 965 lpfc_sli_brdreset(phba); 966 spin_unlock_irq(&phba->hbalock); 967 lpfc_hba_down_post(phba); 968 lpfc_sli_brdready(phba, HS_MBRDY); 969 lpfc_unblock_mgmt_io(phba); 970 phba->link_state = LPFC_HBA_ERROR; 971 return; 972 } 973 974 /** 975 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 976 * @phba: pointer to lpfc hba data structure. 977 * 978 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 979 * other than Port Error 6 has been detected. 980 **/ 981 static void 982 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 983 { 984 lpfc_offline_prep(phba); 985 lpfc_offline(phba); 986 lpfc_sli4_brdreset(phba); 987 lpfc_hba_down_post(phba); 988 lpfc_sli4_post_status_check(phba); 989 lpfc_unblock_mgmt_io(phba); 990 phba->link_state = LPFC_HBA_ERROR; 991 } 992 993 /** 994 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 995 * @phba: pointer to lpfc hba data structure. 996 * 997 * This routine is invoked to handle the deferred HBA hardware error 998 * conditions. This type of error is indicated by HBA by setting ER1 999 * and another ER bit in the host status register. The driver will 1000 * wait until the ER1 bit clears before handling the error condition. 1001 **/ 1002 static void 1003 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1004 { 1005 uint32_t old_host_status = phba->work_hs; 1006 struct lpfc_sli_ring *pring; 1007 struct lpfc_sli *psli = &phba->sli; 1008 1009 /* If the pci channel is offline, ignore possible errors, 1010 * since we cannot communicate with the pci card anyway. 1011 */ 1012 if (pci_channel_offline(phba->pcidev)) { 1013 spin_lock_irq(&phba->hbalock); 1014 phba->hba_flag &= ~DEFER_ERATT; 1015 spin_unlock_irq(&phba->hbalock); 1016 return; 1017 } 1018 1019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1020 "0479 Deferred Adapter Hardware Error " 1021 "Data: x%x x%x x%x\n", 1022 phba->work_hs, 1023 phba->work_status[0], phba->work_status[1]); 1024 1025 spin_lock_irq(&phba->hbalock); 1026 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1027 spin_unlock_irq(&phba->hbalock); 1028 1029 1030 /* 1031 * Firmware stops when it triggred erratt. That could cause the I/Os 1032 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1033 * SCSI layer retry it after re-establishing link. 1034 */ 1035 pring = &psli->ring[psli->fcp_ring]; 1036 lpfc_sli_abort_iocb_ring(phba, pring); 1037 1038 /* 1039 * There was a firmware error. Take the hba offline and then 1040 * attempt to restart it. 1041 */ 1042 lpfc_offline_prep(phba); 1043 lpfc_offline(phba); 1044 1045 /* Wait for the ER1 bit to clear.*/ 1046 while (phba->work_hs & HS_FFER1) { 1047 msleep(100); 1048 phba->work_hs = readl(phba->HSregaddr); 1049 /* If driver is unloading let the worker thread continue */ 1050 if (phba->pport->load_flag & FC_UNLOADING) { 1051 phba->work_hs = 0; 1052 break; 1053 } 1054 } 1055 1056 /* 1057 * This is to ptrotect against a race condition in which 1058 * first write to the host attention register clear the 1059 * host status register. 1060 */ 1061 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1062 phba->work_hs = old_host_status & ~HS_FFER1; 1063 1064 spin_lock_irq(&phba->hbalock); 1065 phba->hba_flag &= ~DEFER_ERATT; 1066 spin_unlock_irq(&phba->hbalock); 1067 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1068 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1069 } 1070 1071 static void 1072 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1073 { 1074 struct lpfc_board_event_header board_event; 1075 struct Scsi_Host *shost; 1076 1077 board_event.event_type = FC_REG_BOARD_EVENT; 1078 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1079 shost = lpfc_shost_from_vport(phba->pport); 1080 fc_host_post_vendor_event(shost, fc_get_event_number(), 1081 sizeof(board_event), 1082 (char *) &board_event, 1083 LPFC_NL_VENDOR_ID); 1084 } 1085 1086 /** 1087 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1088 * @phba: pointer to lpfc hba data structure. 1089 * 1090 * This routine is invoked to handle the following HBA hardware error 1091 * conditions: 1092 * 1 - HBA error attention interrupt 1093 * 2 - DMA ring index out of range 1094 * 3 - Mailbox command came back as unknown 1095 **/ 1096 static void 1097 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1098 { 1099 struct lpfc_vport *vport = phba->pport; 1100 struct lpfc_sli *psli = &phba->sli; 1101 struct lpfc_sli_ring *pring; 1102 uint32_t event_data; 1103 unsigned long temperature; 1104 struct temp_event temp_event_data; 1105 struct Scsi_Host *shost; 1106 1107 /* If the pci channel is offline, ignore possible errors, 1108 * since we cannot communicate with the pci card anyway. 1109 */ 1110 if (pci_channel_offline(phba->pcidev)) { 1111 spin_lock_irq(&phba->hbalock); 1112 phba->hba_flag &= ~DEFER_ERATT; 1113 spin_unlock_irq(&phba->hbalock); 1114 return; 1115 } 1116 1117 /* If resets are disabled then leave the HBA alone and return */ 1118 if (!phba->cfg_enable_hba_reset) 1119 return; 1120 1121 /* Send an internal error event to mgmt application */ 1122 lpfc_board_errevt_to_mgmt(phba); 1123 1124 if (phba->hba_flag & DEFER_ERATT) 1125 lpfc_handle_deferred_eratt(phba); 1126 1127 if (phba->work_hs & HS_FFER6) { 1128 /* Re-establishing Link */ 1129 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1130 "1301 Re-establishing Link " 1131 "Data: x%x x%x x%x\n", 1132 phba->work_hs, 1133 phba->work_status[0], phba->work_status[1]); 1134 1135 spin_lock_irq(&phba->hbalock); 1136 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1137 spin_unlock_irq(&phba->hbalock); 1138 1139 /* 1140 * Firmware stops when it triggled erratt with HS_FFER6. 1141 * That could cause the I/Os dropped by the firmware. 1142 * Error iocb (I/O) on txcmplq and let the SCSI layer 1143 * retry it after re-establishing link. 1144 */ 1145 pring = &psli->ring[psli->fcp_ring]; 1146 lpfc_sli_abort_iocb_ring(phba, pring); 1147 1148 /* 1149 * There was a firmware error. Take the hba offline and then 1150 * attempt to restart it. 1151 */ 1152 lpfc_offline_prep(phba); 1153 lpfc_offline(phba); 1154 lpfc_sli_brdrestart(phba); 1155 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1156 lpfc_unblock_mgmt_io(phba); 1157 return; 1158 } 1159 lpfc_unblock_mgmt_io(phba); 1160 } else if (phba->work_hs & HS_CRIT_TEMP) { 1161 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1162 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1163 temp_event_data.event_code = LPFC_CRIT_TEMP; 1164 temp_event_data.data = (uint32_t)temperature; 1165 1166 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1167 "0406 Adapter maximum temperature exceeded " 1168 "(%ld), taking this port offline " 1169 "Data: x%x x%x x%x\n", 1170 temperature, phba->work_hs, 1171 phba->work_status[0], phba->work_status[1]); 1172 1173 shost = lpfc_shost_from_vport(phba->pport); 1174 fc_host_post_vendor_event(shost, fc_get_event_number(), 1175 sizeof(temp_event_data), 1176 (char *) &temp_event_data, 1177 SCSI_NL_VID_TYPE_PCI 1178 | PCI_VENDOR_ID_EMULEX); 1179 1180 spin_lock_irq(&phba->hbalock); 1181 phba->over_temp_state = HBA_OVER_TEMP; 1182 spin_unlock_irq(&phba->hbalock); 1183 lpfc_offline_eratt(phba); 1184 1185 } else { 1186 /* The if clause above forces this code path when the status 1187 * failure is a value other than FFER6. Do not call the offline 1188 * twice. This is the adapter hardware error path. 1189 */ 1190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1191 "0457 Adapter Hardware Error " 1192 "Data: x%x x%x x%x\n", 1193 phba->work_hs, 1194 phba->work_status[0], phba->work_status[1]); 1195 1196 event_data = FC_REG_DUMP_EVENT; 1197 shost = lpfc_shost_from_vport(vport); 1198 fc_host_post_vendor_event(shost, fc_get_event_number(), 1199 sizeof(event_data), (char *) &event_data, 1200 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1201 1202 lpfc_offline_eratt(phba); 1203 } 1204 return; 1205 } 1206 1207 /** 1208 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1209 * @phba: pointer to lpfc hba data structure. 1210 * 1211 * This routine is invoked to handle the SLI4 HBA hardware error attention 1212 * conditions. 1213 **/ 1214 static void 1215 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1216 { 1217 struct lpfc_vport *vport = phba->pport; 1218 uint32_t event_data; 1219 struct Scsi_Host *shost; 1220 1221 /* If the pci channel is offline, ignore possible errors, since 1222 * we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) 1225 return; 1226 /* If resets are disabled then leave the HBA alone and return */ 1227 if (!phba->cfg_enable_hba_reset) 1228 return; 1229 1230 /* Send an internal error event to mgmt application */ 1231 lpfc_board_errevt_to_mgmt(phba); 1232 1233 /* For now, the actual action for SLI4 device handling is not 1234 * specified yet, just treated it as adaptor hardware failure 1235 */ 1236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1237 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n", 1238 phba->work_status[0], phba->work_status[1]); 1239 1240 event_data = FC_REG_DUMP_EVENT; 1241 shost = lpfc_shost_from_vport(vport); 1242 fc_host_post_vendor_event(shost, fc_get_event_number(), 1243 sizeof(event_data), (char *) &event_data, 1244 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1245 1246 lpfc_sli4_offline_eratt(phba); 1247 } 1248 1249 /** 1250 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1251 * @phba: pointer to lpfc HBA data structure. 1252 * 1253 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1254 * routine from the API jump table function pointer from the lpfc_hba struct. 1255 * 1256 * Return codes 1257 * 0 - sucess. 1258 * Any other value - error. 1259 **/ 1260 void 1261 lpfc_handle_eratt(struct lpfc_hba *phba) 1262 { 1263 (*phba->lpfc_handle_eratt)(phba); 1264 } 1265 1266 /** 1267 * lpfc_handle_latt - The HBA link event handler 1268 * @phba: pointer to lpfc hba data structure. 1269 * 1270 * This routine is invoked from the worker thread to handle a HBA host 1271 * attention link event. 1272 **/ 1273 void 1274 lpfc_handle_latt(struct lpfc_hba *phba) 1275 { 1276 struct lpfc_vport *vport = phba->pport; 1277 struct lpfc_sli *psli = &phba->sli; 1278 LPFC_MBOXQ_t *pmb; 1279 volatile uint32_t control; 1280 struct lpfc_dmabuf *mp; 1281 int rc = 0; 1282 1283 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1284 if (!pmb) { 1285 rc = 1; 1286 goto lpfc_handle_latt_err_exit; 1287 } 1288 1289 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1290 if (!mp) { 1291 rc = 2; 1292 goto lpfc_handle_latt_free_pmb; 1293 } 1294 1295 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1296 if (!mp->virt) { 1297 rc = 3; 1298 goto lpfc_handle_latt_free_mp; 1299 } 1300 1301 /* Cleanup any outstanding ELS commands */ 1302 lpfc_els_flush_all_cmd(phba); 1303 1304 psli->slistat.link_event++; 1305 lpfc_read_la(phba, pmb, mp); 1306 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la; 1307 pmb->vport = vport; 1308 /* Block ELS IOCBs until we have processed this mbox command */ 1309 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1310 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1311 if (rc == MBX_NOT_FINISHED) { 1312 rc = 4; 1313 goto lpfc_handle_latt_free_mbuf; 1314 } 1315 1316 /* Clear Link Attention in HA REG */ 1317 spin_lock_irq(&phba->hbalock); 1318 writel(HA_LATT, phba->HAregaddr); 1319 readl(phba->HAregaddr); /* flush */ 1320 spin_unlock_irq(&phba->hbalock); 1321 1322 return; 1323 1324 lpfc_handle_latt_free_mbuf: 1325 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1326 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1327 lpfc_handle_latt_free_mp: 1328 kfree(mp); 1329 lpfc_handle_latt_free_pmb: 1330 mempool_free(pmb, phba->mbox_mem_pool); 1331 lpfc_handle_latt_err_exit: 1332 /* Enable Link attention interrupts */ 1333 spin_lock_irq(&phba->hbalock); 1334 psli->sli_flag |= LPFC_PROCESS_LA; 1335 control = readl(phba->HCregaddr); 1336 control |= HC_LAINT_ENA; 1337 writel(control, phba->HCregaddr); 1338 readl(phba->HCregaddr); /* flush */ 1339 1340 /* Clear Link Attention in HA REG */ 1341 writel(HA_LATT, phba->HAregaddr); 1342 readl(phba->HAregaddr); /* flush */ 1343 spin_unlock_irq(&phba->hbalock); 1344 lpfc_linkdown(phba); 1345 phba->link_state = LPFC_HBA_ERROR; 1346 1347 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1348 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1349 1350 return; 1351 } 1352 1353 /** 1354 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1355 * @phba: pointer to lpfc hba data structure. 1356 * @vpd: pointer to the vital product data. 1357 * @len: length of the vital product data in bytes. 1358 * 1359 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1360 * an array of characters. In this routine, the ModelName, ProgramType, and 1361 * ModelDesc, etc. fields of the phba data structure will be populated. 1362 * 1363 * Return codes 1364 * 0 - pointer to the VPD passed in is NULL 1365 * 1 - success 1366 **/ 1367 int 1368 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1369 { 1370 uint8_t lenlo, lenhi; 1371 int Length; 1372 int i, j; 1373 int finished = 0; 1374 int index = 0; 1375 1376 if (!vpd) 1377 return 0; 1378 1379 /* Vital Product */ 1380 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1381 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1382 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1383 (uint32_t) vpd[3]); 1384 while (!finished && (index < (len - 4))) { 1385 switch (vpd[index]) { 1386 case 0x82: 1387 case 0x91: 1388 index += 1; 1389 lenlo = vpd[index]; 1390 index += 1; 1391 lenhi = vpd[index]; 1392 index += 1; 1393 i = ((((unsigned short)lenhi) << 8) + lenlo); 1394 index += i; 1395 break; 1396 case 0x90: 1397 index += 1; 1398 lenlo = vpd[index]; 1399 index += 1; 1400 lenhi = vpd[index]; 1401 index += 1; 1402 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1403 if (Length > len - index) 1404 Length = len - index; 1405 while (Length > 0) { 1406 /* Look for Serial Number */ 1407 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1408 index += 2; 1409 i = vpd[index]; 1410 index += 1; 1411 j = 0; 1412 Length -= (3+i); 1413 while(i--) { 1414 phba->SerialNumber[j++] = vpd[index++]; 1415 if (j == 31) 1416 break; 1417 } 1418 phba->SerialNumber[j] = 0; 1419 continue; 1420 } 1421 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1422 phba->vpd_flag |= VPD_MODEL_DESC; 1423 index += 2; 1424 i = vpd[index]; 1425 index += 1; 1426 j = 0; 1427 Length -= (3+i); 1428 while(i--) { 1429 phba->ModelDesc[j++] = vpd[index++]; 1430 if (j == 255) 1431 break; 1432 } 1433 phba->ModelDesc[j] = 0; 1434 continue; 1435 } 1436 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1437 phba->vpd_flag |= VPD_MODEL_NAME; 1438 index += 2; 1439 i = vpd[index]; 1440 index += 1; 1441 j = 0; 1442 Length -= (3+i); 1443 while(i--) { 1444 phba->ModelName[j++] = vpd[index++]; 1445 if (j == 79) 1446 break; 1447 } 1448 phba->ModelName[j] = 0; 1449 continue; 1450 } 1451 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1452 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1453 index += 2; 1454 i = vpd[index]; 1455 index += 1; 1456 j = 0; 1457 Length -= (3+i); 1458 while(i--) { 1459 phba->ProgramType[j++] = vpd[index++]; 1460 if (j == 255) 1461 break; 1462 } 1463 phba->ProgramType[j] = 0; 1464 continue; 1465 } 1466 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1467 phba->vpd_flag |= VPD_PORT; 1468 index += 2; 1469 i = vpd[index]; 1470 index += 1; 1471 j = 0; 1472 Length -= (3+i); 1473 while(i--) { 1474 phba->Port[j++] = vpd[index++]; 1475 if (j == 19) 1476 break; 1477 } 1478 phba->Port[j] = 0; 1479 continue; 1480 } 1481 else { 1482 index += 2; 1483 i = vpd[index]; 1484 index += 1; 1485 index += i; 1486 Length -= (3 + i); 1487 } 1488 } 1489 finished = 0; 1490 break; 1491 case 0x78: 1492 finished = 1; 1493 break; 1494 default: 1495 index ++; 1496 break; 1497 } 1498 } 1499 1500 return(1); 1501 } 1502 1503 /** 1504 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1505 * @phba: pointer to lpfc hba data structure. 1506 * @mdp: pointer to the data structure to hold the derived model name. 1507 * @descp: pointer to the data structure to hold the derived description. 1508 * 1509 * This routine retrieves HBA's description based on its registered PCI device 1510 * ID. The @descp passed into this function points to an array of 256 chars. It 1511 * shall be returned with the model name, maximum speed, and the host bus type. 1512 * The @mdp passed into this function points to an array of 80 chars. When the 1513 * function returns, the @mdp will be filled with the model name. 1514 **/ 1515 static void 1516 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1517 { 1518 lpfc_vpd_t *vp; 1519 uint16_t dev_id = phba->pcidev->device; 1520 int max_speed; 1521 int GE = 0; 1522 int oneConnect = 0; /* default is not a oneConnect */ 1523 struct { 1524 char * name; 1525 int max_speed; 1526 char * bus; 1527 } m = {"<Unknown>", 0, ""}; 1528 1529 if (mdp && mdp[0] != '\0' 1530 && descp && descp[0] != '\0') 1531 return; 1532 1533 if (phba->lmt & LMT_10Gb) 1534 max_speed = 10; 1535 else if (phba->lmt & LMT_8Gb) 1536 max_speed = 8; 1537 else if (phba->lmt & LMT_4Gb) 1538 max_speed = 4; 1539 else if (phba->lmt & LMT_2Gb) 1540 max_speed = 2; 1541 else 1542 max_speed = 1; 1543 1544 vp = &phba->vpd; 1545 1546 switch (dev_id) { 1547 case PCI_DEVICE_ID_FIREFLY: 1548 m = (typeof(m)){"LP6000", max_speed, "PCI"}; 1549 break; 1550 case PCI_DEVICE_ID_SUPERFLY: 1551 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1552 m = (typeof(m)){"LP7000", max_speed, "PCI"}; 1553 else 1554 m = (typeof(m)){"LP7000E", max_speed, "PCI"}; 1555 break; 1556 case PCI_DEVICE_ID_DRAGONFLY: 1557 m = (typeof(m)){"LP8000", max_speed, "PCI"}; 1558 break; 1559 case PCI_DEVICE_ID_CENTAUR: 1560 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1561 m = (typeof(m)){"LP9002", max_speed, "PCI"}; 1562 else 1563 m = (typeof(m)){"LP9000", max_speed, "PCI"}; 1564 break; 1565 case PCI_DEVICE_ID_RFLY: 1566 m = (typeof(m)){"LP952", max_speed, "PCI"}; 1567 break; 1568 case PCI_DEVICE_ID_PEGASUS: 1569 m = (typeof(m)){"LP9802", max_speed, "PCI-X"}; 1570 break; 1571 case PCI_DEVICE_ID_THOR: 1572 m = (typeof(m)){"LP10000", max_speed, "PCI-X"}; 1573 break; 1574 case PCI_DEVICE_ID_VIPER: 1575 m = (typeof(m)){"LPX1000", max_speed, "PCI-X"}; 1576 break; 1577 case PCI_DEVICE_ID_PFLY: 1578 m = (typeof(m)){"LP982", max_speed, "PCI-X"}; 1579 break; 1580 case PCI_DEVICE_ID_TFLY: 1581 m = (typeof(m)){"LP1050", max_speed, "PCI-X"}; 1582 break; 1583 case PCI_DEVICE_ID_HELIOS: 1584 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"}; 1585 break; 1586 case PCI_DEVICE_ID_HELIOS_SCSP: 1587 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"}; 1588 break; 1589 case PCI_DEVICE_ID_HELIOS_DCSP: 1590 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"}; 1591 break; 1592 case PCI_DEVICE_ID_NEPTUNE: 1593 m = (typeof(m)){"LPe1000", max_speed, "PCIe"}; 1594 break; 1595 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1596 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"}; 1597 break; 1598 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1599 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"}; 1600 break; 1601 case PCI_DEVICE_ID_BMID: 1602 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"}; 1603 break; 1604 case PCI_DEVICE_ID_BSMB: 1605 m = (typeof(m)){"LP111", max_speed, "PCI-X2"}; 1606 break; 1607 case PCI_DEVICE_ID_ZEPHYR: 1608 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1609 break; 1610 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1611 m = (typeof(m)){"LPe11000", max_speed, "PCIe"}; 1612 break; 1613 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1614 m = (typeof(m)){"LP2105", max_speed, "PCIe"}; 1615 GE = 1; 1616 break; 1617 case PCI_DEVICE_ID_ZMID: 1618 m = (typeof(m)){"LPe1150", max_speed, "PCIe"}; 1619 break; 1620 case PCI_DEVICE_ID_ZSMB: 1621 m = (typeof(m)){"LPe111", max_speed, "PCIe"}; 1622 break; 1623 case PCI_DEVICE_ID_LP101: 1624 m = (typeof(m)){"LP101", max_speed, "PCI-X"}; 1625 break; 1626 case PCI_DEVICE_ID_LP10000S: 1627 m = (typeof(m)){"LP10000-S", max_speed, "PCI"}; 1628 break; 1629 case PCI_DEVICE_ID_LP11000S: 1630 m = (typeof(m)){"LP11000-S", max_speed, 1631 "PCI-X2"}; 1632 break; 1633 case PCI_DEVICE_ID_LPE11000S: 1634 m = (typeof(m)){"LPe11000-S", max_speed, 1635 "PCIe"}; 1636 break; 1637 case PCI_DEVICE_ID_SAT: 1638 m = (typeof(m)){"LPe12000", max_speed, "PCIe"}; 1639 break; 1640 case PCI_DEVICE_ID_SAT_MID: 1641 m = (typeof(m)){"LPe1250", max_speed, "PCIe"}; 1642 break; 1643 case PCI_DEVICE_ID_SAT_SMB: 1644 m = (typeof(m)){"LPe121", max_speed, "PCIe"}; 1645 break; 1646 case PCI_DEVICE_ID_SAT_DCSP: 1647 m = (typeof(m)){"LPe12002-SP", max_speed, "PCIe"}; 1648 break; 1649 case PCI_DEVICE_ID_SAT_SCSP: 1650 m = (typeof(m)){"LPe12000-SP", max_speed, "PCIe"}; 1651 break; 1652 case PCI_DEVICE_ID_SAT_S: 1653 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1654 break; 1655 case PCI_DEVICE_ID_HORNET: 1656 m = (typeof(m)){"LP21000", max_speed, "PCIe"}; 1657 GE = 1; 1658 break; 1659 case PCI_DEVICE_ID_PROTEUS_VF: 1660 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1661 break; 1662 case PCI_DEVICE_ID_PROTEUS_PF: 1663 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"}; 1664 break; 1665 case PCI_DEVICE_ID_PROTEUS_S: 1666 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1667 break; 1668 case PCI_DEVICE_ID_TIGERSHARK: 1669 oneConnect = 1; 1670 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"}; 1671 break; 1672 default: 1673 m = (typeof(m)){ NULL }; 1674 break; 1675 } 1676 1677 if (mdp && mdp[0] == '\0') 1678 snprintf(mdp, 79,"%s", m.name); 1679 /* oneConnect hba requires special processing, they are all initiators 1680 * and we put the port number on the end 1681 */ 1682 if (descp && descp[0] == '\0') { 1683 if (oneConnect) 1684 snprintf(descp, 255, 1685 "Emulex OneConnect %s, FCoE Initiator, Port %s", 1686 m.name, 1687 phba->Port); 1688 else 1689 snprintf(descp, 255, 1690 "Emulex %s %d%s %s %s", 1691 m.name, m.max_speed, 1692 (GE) ? "GE" : "Gb", 1693 m.bus, 1694 (GE) ? "FCoE Adapter" : 1695 "Fibre Channel Adapter"); 1696 } 1697 } 1698 1699 /** 1700 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1701 * @phba: pointer to lpfc hba data structure. 1702 * @pring: pointer to a IOCB ring. 1703 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1704 * 1705 * This routine posts a given number of IOCBs with the associated DMA buffer 1706 * descriptors specified by the cnt argument to the given IOCB ring. 1707 * 1708 * Return codes 1709 * The number of IOCBs NOT able to be posted to the IOCB ring. 1710 **/ 1711 int 1712 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1713 { 1714 IOCB_t *icmd; 1715 struct lpfc_iocbq *iocb; 1716 struct lpfc_dmabuf *mp1, *mp2; 1717 1718 cnt += pring->missbufcnt; 1719 1720 /* While there are buffers to post */ 1721 while (cnt > 0) { 1722 /* Allocate buffer for command iocb */ 1723 iocb = lpfc_sli_get_iocbq(phba); 1724 if (iocb == NULL) { 1725 pring->missbufcnt = cnt; 1726 return cnt; 1727 } 1728 icmd = &iocb->iocb; 1729 1730 /* 2 buffers can be posted per command */ 1731 /* Allocate buffer to post */ 1732 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1733 if (mp1) 1734 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 1735 if (!mp1 || !mp1->virt) { 1736 kfree(mp1); 1737 lpfc_sli_release_iocbq(phba, iocb); 1738 pring->missbufcnt = cnt; 1739 return cnt; 1740 } 1741 1742 INIT_LIST_HEAD(&mp1->list); 1743 /* Allocate buffer to post */ 1744 if (cnt > 1) { 1745 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 1746 if (mp2) 1747 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 1748 &mp2->phys); 1749 if (!mp2 || !mp2->virt) { 1750 kfree(mp2); 1751 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1752 kfree(mp1); 1753 lpfc_sli_release_iocbq(phba, iocb); 1754 pring->missbufcnt = cnt; 1755 return cnt; 1756 } 1757 1758 INIT_LIST_HEAD(&mp2->list); 1759 } else { 1760 mp2 = NULL; 1761 } 1762 1763 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 1764 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 1765 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 1766 icmd->ulpBdeCount = 1; 1767 cnt--; 1768 if (mp2) { 1769 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 1770 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 1771 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 1772 cnt--; 1773 icmd->ulpBdeCount = 2; 1774 } 1775 1776 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1777 icmd->ulpLe = 1; 1778 1779 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 1780 IOCB_ERROR) { 1781 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1782 kfree(mp1); 1783 cnt++; 1784 if (mp2) { 1785 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 1786 kfree(mp2); 1787 cnt++; 1788 } 1789 lpfc_sli_release_iocbq(phba, iocb); 1790 pring->missbufcnt = cnt; 1791 return cnt; 1792 } 1793 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 1794 if (mp2) 1795 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 1796 } 1797 pring->missbufcnt = 0; 1798 return 0; 1799 } 1800 1801 /** 1802 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 1803 * @phba: pointer to lpfc hba data structure. 1804 * 1805 * This routine posts initial receive IOCB buffers to the ELS ring. The 1806 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 1807 * set to 64 IOCBs. 1808 * 1809 * Return codes 1810 * 0 - success (currently always success) 1811 **/ 1812 static int 1813 lpfc_post_rcv_buf(struct lpfc_hba *phba) 1814 { 1815 struct lpfc_sli *psli = &phba->sli; 1816 1817 /* Ring 0, ELS / CT buffers */ 1818 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 1819 /* Ring 2 - FCP no buffers needed */ 1820 1821 return 0; 1822 } 1823 1824 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1825 1826 /** 1827 * lpfc_sha_init - Set up initial array of hash table entries 1828 * @HashResultPointer: pointer to an array as hash table. 1829 * 1830 * This routine sets up the initial values to the array of hash table entries 1831 * for the LC HBAs. 1832 **/ 1833 static void 1834 lpfc_sha_init(uint32_t * HashResultPointer) 1835 { 1836 HashResultPointer[0] = 0x67452301; 1837 HashResultPointer[1] = 0xEFCDAB89; 1838 HashResultPointer[2] = 0x98BADCFE; 1839 HashResultPointer[3] = 0x10325476; 1840 HashResultPointer[4] = 0xC3D2E1F0; 1841 } 1842 1843 /** 1844 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 1845 * @HashResultPointer: pointer to an initial/result hash table. 1846 * @HashWorkingPointer: pointer to an working hash table. 1847 * 1848 * This routine iterates an initial hash table pointed by @HashResultPointer 1849 * with the values from the working hash table pointeed by @HashWorkingPointer. 1850 * The results are putting back to the initial hash table, returned through 1851 * the @HashResultPointer as the result hash table. 1852 **/ 1853 static void 1854 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1855 { 1856 int t; 1857 uint32_t TEMP; 1858 uint32_t A, B, C, D, E; 1859 t = 16; 1860 do { 1861 HashWorkingPointer[t] = 1862 S(1, 1863 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 1864 8] ^ 1865 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 1866 } while (++t <= 79); 1867 t = 0; 1868 A = HashResultPointer[0]; 1869 B = HashResultPointer[1]; 1870 C = HashResultPointer[2]; 1871 D = HashResultPointer[3]; 1872 E = HashResultPointer[4]; 1873 1874 do { 1875 if (t < 20) { 1876 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 1877 } else if (t < 40) { 1878 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 1879 } else if (t < 60) { 1880 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 1881 } else { 1882 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 1883 } 1884 TEMP += S(5, A) + E + HashWorkingPointer[t]; 1885 E = D; 1886 D = C; 1887 C = S(30, B); 1888 B = A; 1889 A = TEMP; 1890 } while (++t <= 79); 1891 1892 HashResultPointer[0] += A; 1893 HashResultPointer[1] += B; 1894 HashResultPointer[2] += C; 1895 HashResultPointer[3] += D; 1896 HashResultPointer[4] += E; 1897 1898 } 1899 1900 /** 1901 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 1902 * @RandomChallenge: pointer to the entry of host challenge random number array. 1903 * @HashWorking: pointer to the entry of the working hash array. 1904 * 1905 * This routine calculates the working hash array referred by @HashWorking 1906 * from the challenge random numbers associated with the host, referred by 1907 * @RandomChallenge. The result is put into the entry of the working hash 1908 * array and returned by reference through @HashWorking. 1909 **/ 1910 static void 1911 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1912 { 1913 *HashWorking = (*RandomChallenge ^ *HashWorking); 1914 } 1915 1916 /** 1917 * lpfc_hba_init - Perform special handling for LC HBA initialization 1918 * @phba: pointer to lpfc hba data structure. 1919 * @hbainit: pointer to an array of unsigned 32-bit integers. 1920 * 1921 * This routine performs the special handling for LC HBA initialization. 1922 **/ 1923 void 1924 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1925 { 1926 int t; 1927 uint32_t *HashWorking; 1928 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 1929 1930 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 1931 if (!HashWorking) 1932 return; 1933 1934 HashWorking[0] = HashWorking[78] = *pwwnn++; 1935 HashWorking[1] = HashWorking[79] = *pwwnn; 1936 1937 for (t = 0; t < 7; t++) 1938 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 1939 1940 lpfc_sha_init(hbainit); 1941 lpfc_sha_iterate(hbainit, HashWorking); 1942 kfree(HashWorking); 1943 } 1944 1945 /** 1946 * lpfc_cleanup - Performs vport cleanups before deleting a vport 1947 * @vport: pointer to a virtual N_Port data structure. 1948 * 1949 * This routine performs the necessary cleanups before deleting the @vport. 1950 * It invokes the discovery state machine to perform necessary state 1951 * transitions and to release the ndlps associated with the @vport. Note, 1952 * the physical port is treated as @vport 0. 1953 **/ 1954 void 1955 lpfc_cleanup(struct lpfc_vport *vport) 1956 { 1957 struct lpfc_hba *phba = vport->phba; 1958 struct lpfc_nodelist *ndlp, *next_ndlp; 1959 int i = 0; 1960 1961 if (phba->link_state > LPFC_LINK_DOWN) 1962 lpfc_port_link_failure(vport); 1963 1964 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 1965 if (!NLP_CHK_NODE_ACT(ndlp)) { 1966 ndlp = lpfc_enable_node(vport, ndlp, 1967 NLP_STE_UNUSED_NODE); 1968 if (!ndlp) 1969 continue; 1970 spin_lock_irq(&phba->ndlp_lock); 1971 NLP_SET_FREE_REQ(ndlp); 1972 spin_unlock_irq(&phba->ndlp_lock); 1973 /* Trigger the release of the ndlp memory */ 1974 lpfc_nlp_put(ndlp); 1975 continue; 1976 } 1977 spin_lock_irq(&phba->ndlp_lock); 1978 if (NLP_CHK_FREE_REQ(ndlp)) { 1979 /* The ndlp should not be in memory free mode already */ 1980 spin_unlock_irq(&phba->ndlp_lock); 1981 continue; 1982 } else 1983 /* Indicate request for freeing ndlp memory */ 1984 NLP_SET_FREE_REQ(ndlp); 1985 spin_unlock_irq(&phba->ndlp_lock); 1986 1987 if (vport->port_type != LPFC_PHYSICAL_PORT && 1988 ndlp->nlp_DID == Fabric_DID) { 1989 /* Just free up ndlp with Fabric_DID for vports */ 1990 lpfc_nlp_put(ndlp); 1991 continue; 1992 } 1993 1994 if (ndlp->nlp_type & NLP_FABRIC) 1995 lpfc_disc_state_machine(vport, ndlp, NULL, 1996 NLP_EVT_DEVICE_RECOVERY); 1997 1998 lpfc_disc_state_machine(vport, ndlp, NULL, 1999 NLP_EVT_DEVICE_RM); 2000 2001 } 2002 2003 /* At this point, ALL ndlp's should be gone 2004 * because of the previous NLP_EVT_DEVICE_RM. 2005 * Lets wait for this to happen, if needed. 2006 */ 2007 while (!list_empty(&vport->fc_nodes)) { 2008 if (i++ > 3000) { 2009 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2010 "0233 Nodelist not empty\n"); 2011 list_for_each_entry_safe(ndlp, next_ndlp, 2012 &vport->fc_nodes, nlp_listp) { 2013 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2014 LOG_NODE, 2015 "0282 did:x%x ndlp:x%p " 2016 "usgmap:x%x refcnt:%d\n", 2017 ndlp->nlp_DID, (void *)ndlp, 2018 ndlp->nlp_usg_map, 2019 atomic_read( 2020 &ndlp->kref.refcount)); 2021 } 2022 break; 2023 } 2024 2025 /* Wait for any activity on ndlps to settle */ 2026 msleep(10); 2027 } 2028 } 2029 2030 /** 2031 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2032 * @vport: pointer to a virtual N_Port data structure. 2033 * 2034 * This routine stops all the timers associated with a @vport. This function 2035 * is invoked before disabling or deleting a @vport. Note that the physical 2036 * port is treated as @vport 0. 2037 **/ 2038 void 2039 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2040 { 2041 del_timer_sync(&vport->els_tmofunc); 2042 del_timer_sync(&vport->fc_fdmitmo); 2043 lpfc_can_disctmo(vport); 2044 return; 2045 } 2046 2047 /** 2048 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2049 * @phba: pointer to lpfc hba data structure. 2050 * 2051 * This routine stops all the timers associated with a HBA. This function is 2052 * invoked before either putting a HBA offline or unloading the driver. 2053 **/ 2054 void 2055 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2056 { 2057 lpfc_stop_vport_timers(phba->pport); 2058 del_timer_sync(&phba->sli.mbox_tmo); 2059 del_timer_sync(&phba->fabric_block_timer); 2060 del_timer_sync(&phba->eratt_poll); 2061 del_timer_sync(&phba->hb_tmofunc); 2062 phba->hb_outstanding = 0; 2063 2064 switch (phba->pci_dev_grp) { 2065 case LPFC_PCI_DEV_LP: 2066 /* Stop any LightPulse device specific driver timers */ 2067 del_timer_sync(&phba->fcp_poll_timer); 2068 break; 2069 case LPFC_PCI_DEV_OC: 2070 /* Stop any OneConnect device sepcific driver timers */ 2071 break; 2072 default: 2073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2074 "0297 Invalid device group (x%x)\n", 2075 phba->pci_dev_grp); 2076 break; 2077 } 2078 return; 2079 } 2080 2081 /** 2082 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2083 * @phba: pointer to lpfc hba data structure. 2084 * 2085 * This routine marks a HBA's management interface as blocked. Once the HBA's 2086 * management interface is marked as blocked, all the user space access to 2087 * the HBA, whether they are from sysfs interface or libdfc interface will 2088 * all be blocked. The HBA is set to block the management interface when the 2089 * driver prepares the HBA interface for online or offline. 2090 **/ 2091 static void 2092 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2093 { 2094 unsigned long iflag; 2095 2096 spin_lock_irqsave(&phba->hbalock, iflag); 2097 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2098 spin_unlock_irqrestore(&phba->hbalock, iflag); 2099 } 2100 2101 /** 2102 * lpfc_online - Initialize and bring a HBA online 2103 * @phba: pointer to lpfc hba data structure. 2104 * 2105 * This routine initializes the HBA and brings a HBA online. During this 2106 * process, the management interface is blocked to prevent user space access 2107 * to the HBA interfering with the driver initialization. 2108 * 2109 * Return codes 2110 * 0 - successful 2111 * 1 - failed 2112 **/ 2113 int 2114 lpfc_online(struct lpfc_hba *phba) 2115 { 2116 struct lpfc_vport *vport; 2117 struct lpfc_vport **vports; 2118 int i; 2119 2120 if (!phba) 2121 return 0; 2122 vport = phba->pport; 2123 2124 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2125 return 0; 2126 2127 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2128 "0458 Bring Adapter online\n"); 2129 2130 lpfc_block_mgmt_io(phba); 2131 2132 if (!lpfc_sli_queue_setup(phba)) { 2133 lpfc_unblock_mgmt_io(phba); 2134 return 1; 2135 } 2136 2137 if (phba->sli_rev == LPFC_SLI_REV4) { 2138 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2139 lpfc_unblock_mgmt_io(phba); 2140 return 1; 2141 } 2142 } else { 2143 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2144 lpfc_unblock_mgmt_io(phba); 2145 return 1; 2146 } 2147 } 2148 2149 vports = lpfc_create_vport_work_array(phba); 2150 if (vports != NULL) 2151 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2152 struct Scsi_Host *shost; 2153 shost = lpfc_shost_from_vport(vports[i]); 2154 spin_lock_irq(shost->host_lock); 2155 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2156 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2157 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2158 if (phba->sli_rev == LPFC_SLI_REV4) 2159 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2160 spin_unlock_irq(shost->host_lock); 2161 } 2162 lpfc_destroy_vport_work_array(phba, vports); 2163 2164 lpfc_unblock_mgmt_io(phba); 2165 return 0; 2166 } 2167 2168 /** 2169 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2170 * @phba: pointer to lpfc hba data structure. 2171 * 2172 * This routine marks a HBA's management interface as not blocked. Once the 2173 * HBA's management interface is marked as not blocked, all the user space 2174 * access to the HBA, whether they are from sysfs interface or libdfc 2175 * interface will be allowed. The HBA is set to block the management interface 2176 * when the driver prepares the HBA interface for online or offline and then 2177 * set to unblock the management interface afterwards. 2178 **/ 2179 void 2180 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2181 { 2182 unsigned long iflag; 2183 2184 spin_lock_irqsave(&phba->hbalock, iflag); 2185 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2186 spin_unlock_irqrestore(&phba->hbalock, iflag); 2187 } 2188 2189 /** 2190 * lpfc_offline_prep - Prepare a HBA to be brought offline 2191 * @phba: pointer to lpfc hba data structure. 2192 * 2193 * This routine is invoked to prepare a HBA to be brought offline. It performs 2194 * unregistration login to all the nodes on all vports and flushes the mailbox 2195 * queue to make it ready to be brought offline. 2196 **/ 2197 void 2198 lpfc_offline_prep(struct lpfc_hba * phba) 2199 { 2200 struct lpfc_vport *vport = phba->pport; 2201 struct lpfc_nodelist *ndlp, *next_ndlp; 2202 struct lpfc_vport **vports; 2203 int i; 2204 2205 if (vport->fc_flag & FC_OFFLINE_MODE) 2206 return; 2207 2208 lpfc_block_mgmt_io(phba); 2209 2210 lpfc_linkdown(phba); 2211 2212 /* Issue an unreg_login to all nodes on all vports */ 2213 vports = lpfc_create_vport_work_array(phba); 2214 if (vports != NULL) { 2215 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2216 struct Scsi_Host *shost; 2217 2218 if (vports[i]->load_flag & FC_UNLOADING) 2219 continue; 2220 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED; 2221 shost = lpfc_shost_from_vport(vports[i]); 2222 list_for_each_entry_safe(ndlp, next_ndlp, 2223 &vports[i]->fc_nodes, 2224 nlp_listp) { 2225 if (!NLP_CHK_NODE_ACT(ndlp)) 2226 continue; 2227 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2228 continue; 2229 if (ndlp->nlp_type & NLP_FABRIC) { 2230 lpfc_disc_state_machine(vports[i], ndlp, 2231 NULL, NLP_EVT_DEVICE_RECOVERY); 2232 lpfc_disc_state_machine(vports[i], ndlp, 2233 NULL, NLP_EVT_DEVICE_RM); 2234 } 2235 spin_lock_irq(shost->host_lock); 2236 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2237 spin_unlock_irq(shost->host_lock); 2238 lpfc_unreg_rpi(vports[i], ndlp); 2239 } 2240 } 2241 } 2242 lpfc_destroy_vport_work_array(phba, vports); 2243 2244 lpfc_sli_mbox_sys_shutdown(phba); 2245 } 2246 2247 /** 2248 * lpfc_offline - Bring a HBA offline 2249 * @phba: pointer to lpfc hba data structure. 2250 * 2251 * This routine actually brings a HBA offline. It stops all the timers 2252 * associated with the HBA, brings down the SLI layer, and eventually 2253 * marks the HBA as in offline state for the upper layer protocol. 2254 **/ 2255 void 2256 lpfc_offline(struct lpfc_hba *phba) 2257 { 2258 struct Scsi_Host *shost; 2259 struct lpfc_vport **vports; 2260 int i; 2261 2262 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2263 return; 2264 2265 /* stop port and all timers associated with this hba */ 2266 lpfc_stop_port(phba); 2267 vports = lpfc_create_vport_work_array(phba); 2268 if (vports != NULL) 2269 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2270 lpfc_stop_vport_timers(vports[i]); 2271 lpfc_destroy_vport_work_array(phba, vports); 2272 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2273 "0460 Bring Adapter offline\n"); 2274 /* Bring down the SLI Layer and cleanup. The HBA is offline 2275 now. */ 2276 lpfc_sli_hba_down(phba); 2277 spin_lock_irq(&phba->hbalock); 2278 phba->work_ha = 0; 2279 spin_unlock_irq(&phba->hbalock); 2280 vports = lpfc_create_vport_work_array(phba); 2281 if (vports != NULL) 2282 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2283 shost = lpfc_shost_from_vport(vports[i]); 2284 spin_lock_irq(shost->host_lock); 2285 vports[i]->work_port_events = 0; 2286 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2287 spin_unlock_irq(shost->host_lock); 2288 } 2289 lpfc_destroy_vport_work_array(phba, vports); 2290 } 2291 2292 /** 2293 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2294 * @phba: pointer to lpfc hba data structure. 2295 * 2296 * This routine is to free all the SCSI buffers and IOCBs from the driver 2297 * list back to kernel. It is called from lpfc_pci_remove_one to free 2298 * the internal resources before the device is removed from the system. 2299 * 2300 * Return codes 2301 * 0 - successful (for now, it always returns 0) 2302 **/ 2303 static int 2304 lpfc_scsi_free(struct lpfc_hba *phba) 2305 { 2306 struct lpfc_scsi_buf *sb, *sb_next; 2307 struct lpfc_iocbq *io, *io_next; 2308 2309 spin_lock_irq(&phba->hbalock); 2310 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2311 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2312 list_del(&sb->list); 2313 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2314 sb->dma_handle); 2315 kfree(sb); 2316 phba->total_scsi_bufs--; 2317 } 2318 2319 /* Release all the lpfc_iocbq entries maintained by this host. */ 2320 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2321 list_del(&io->list); 2322 kfree(io); 2323 phba->total_iocbq_bufs--; 2324 } 2325 2326 spin_unlock_irq(&phba->hbalock); 2327 2328 return 0; 2329 } 2330 2331 /** 2332 * lpfc_create_port - Create an FC port 2333 * @phba: pointer to lpfc hba data structure. 2334 * @instance: a unique integer ID to this FC port. 2335 * @dev: pointer to the device data structure. 2336 * 2337 * This routine creates a FC port for the upper layer protocol. The FC port 2338 * can be created on top of either a physical port or a virtual port provided 2339 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2340 * and associates the FC port created before adding the shost into the SCSI 2341 * layer. 2342 * 2343 * Return codes 2344 * @vport - pointer to the virtual N_Port data structure. 2345 * NULL - port create failed. 2346 **/ 2347 struct lpfc_vport * 2348 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2349 { 2350 struct lpfc_vport *vport; 2351 struct Scsi_Host *shost; 2352 int error = 0; 2353 2354 if (dev != &phba->pcidev->dev) 2355 shost = scsi_host_alloc(&lpfc_vport_template, 2356 sizeof(struct lpfc_vport)); 2357 else 2358 shost = scsi_host_alloc(&lpfc_template, 2359 sizeof(struct lpfc_vport)); 2360 if (!shost) 2361 goto out; 2362 2363 vport = (struct lpfc_vport *) shost->hostdata; 2364 vport->phba = phba; 2365 vport->load_flag |= FC_LOADING; 2366 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2367 vport->fc_rscn_flush = 0; 2368 2369 lpfc_get_vport_cfgparam(vport); 2370 shost->unique_id = instance; 2371 shost->max_id = LPFC_MAX_TARGET; 2372 shost->max_lun = vport->cfg_max_luns; 2373 shost->this_id = -1; 2374 shost->max_cmd_len = 16; 2375 if (phba->sli_rev == LPFC_SLI_REV4) { 2376 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE; 2377 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2378 } 2379 2380 /* 2381 * Set initial can_queue value since 0 is no longer supported and 2382 * scsi_add_host will fail. This will be adjusted later based on the 2383 * max xri value determined in hba setup. 2384 */ 2385 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2386 if (dev != &phba->pcidev->dev) { 2387 shost->transportt = lpfc_vport_transport_template; 2388 vport->port_type = LPFC_NPIV_PORT; 2389 } else { 2390 shost->transportt = lpfc_transport_template; 2391 vport->port_type = LPFC_PHYSICAL_PORT; 2392 } 2393 2394 /* Initialize all internally managed lists. */ 2395 INIT_LIST_HEAD(&vport->fc_nodes); 2396 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2397 spin_lock_init(&vport->work_port_lock); 2398 2399 init_timer(&vport->fc_disctmo); 2400 vport->fc_disctmo.function = lpfc_disc_timeout; 2401 vport->fc_disctmo.data = (unsigned long)vport; 2402 2403 init_timer(&vport->fc_fdmitmo); 2404 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2405 vport->fc_fdmitmo.data = (unsigned long)vport; 2406 2407 init_timer(&vport->els_tmofunc); 2408 vport->els_tmofunc.function = lpfc_els_timeout; 2409 vport->els_tmofunc.data = (unsigned long)vport; 2410 2411 error = scsi_add_host(shost, dev); 2412 if (error) 2413 goto out_put_shost; 2414 2415 spin_lock_irq(&phba->hbalock); 2416 list_add_tail(&vport->listentry, &phba->port_list); 2417 spin_unlock_irq(&phba->hbalock); 2418 return vport; 2419 2420 out_put_shost: 2421 scsi_host_put(shost); 2422 out: 2423 return NULL; 2424 } 2425 2426 /** 2427 * destroy_port - destroy an FC port 2428 * @vport: pointer to an lpfc virtual N_Port data structure. 2429 * 2430 * This routine destroys a FC port from the upper layer protocol. All the 2431 * resources associated with the port are released. 2432 **/ 2433 void 2434 destroy_port(struct lpfc_vport *vport) 2435 { 2436 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2437 struct lpfc_hba *phba = vport->phba; 2438 2439 lpfc_debugfs_terminate(vport); 2440 fc_remove_host(shost); 2441 scsi_remove_host(shost); 2442 2443 spin_lock_irq(&phba->hbalock); 2444 list_del_init(&vport->listentry); 2445 spin_unlock_irq(&phba->hbalock); 2446 2447 lpfc_cleanup(vport); 2448 return; 2449 } 2450 2451 /** 2452 * lpfc_get_instance - Get a unique integer ID 2453 * 2454 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2455 * uses the kernel idr facility to perform the task. 2456 * 2457 * Return codes: 2458 * instance - a unique integer ID allocated as the new instance. 2459 * -1 - lpfc get instance failed. 2460 **/ 2461 int 2462 lpfc_get_instance(void) 2463 { 2464 int instance = 0; 2465 2466 /* Assign an unused number */ 2467 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2468 return -1; 2469 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2470 return -1; 2471 return instance; 2472 } 2473 2474 /** 2475 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2476 * @shost: pointer to SCSI host data structure. 2477 * @time: elapsed time of the scan in jiffies. 2478 * 2479 * This routine is called by the SCSI layer with a SCSI host to determine 2480 * whether the scan host is finished. 2481 * 2482 * Note: there is no scan_start function as adapter initialization will have 2483 * asynchronously kicked off the link initialization. 2484 * 2485 * Return codes 2486 * 0 - SCSI host scan is not over yet. 2487 * 1 - SCSI host scan is over. 2488 **/ 2489 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2490 { 2491 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2492 struct lpfc_hba *phba = vport->phba; 2493 int stat = 0; 2494 2495 spin_lock_irq(shost->host_lock); 2496 2497 if (vport->load_flag & FC_UNLOADING) { 2498 stat = 1; 2499 goto finished; 2500 } 2501 if (time >= 30 * HZ) { 2502 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2503 "0461 Scanning longer than 30 " 2504 "seconds. Continuing initialization\n"); 2505 stat = 1; 2506 goto finished; 2507 } 2508 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2509 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2510 "0465 Link down longer than 15 " 2511 "seconds. Continuing initialization\n"); 2512 stat = 1; 2513 goto finished; 2514 } 2515 2516 if (vport->port_state != LPFC_VPORT_READY) 2517 goto finished; 2518 if (vport->num_disc_nodes || vport->fc_prli_sent) 2519 goto finished; 2520 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2521 goto finished; 2522 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2523 goto finished; 2524 2525 stat = 1; 2526 2527 finished: 2528 spin_unlock_irq(shost->host_lock); 2529 return stat; 2530 } 2531 2532 /** 2533 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2534 * @shost: pointer to SCSI host data structure. 2535 * 2536 * This routine initializes a given SCSI host attributes on a FC port. The 2537 * SCSI host can be either on top of a physical port or a virtual port. 2538 **/ 2539 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2540 { 2541 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2542 struct lpfc_hba *phba = vport->phba; 2543 /* 2544 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2545 */ 2546 2547 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2548 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2549 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2550 2551 memset(fc_host_supported_fc4s(shost), 0, 2552 sizeof(fc_host_supported_fc4s(shost))); 2553 fc_host_supported_fc4s(shost)[2] = 1; 2554 fc_host_supported_fc4s(shost)[7] = 1; 2555 2556 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2557 sizeof fc_host_symbolic_name(shost)); 2558 2559 fc_host_supported_speeds(shost) = 0; 2560 if (phba->lmt & LMT_10Gb) 2561 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2562 if (phba->lmt & LMT_8Gb) 2563 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2564 if (phba->lmt & LMT_4Gb) 2565 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2566 if (phba->lmt & LMT_2Gb) 2567 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2568 if (phba->lmt & LMT_1Gb) 2569 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2570 2571 fc_host_maxframe_size(shost) = 2572 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2573 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2574 2575 /* This value is also unchanging */ 2576 memset(fc_host_active_fc4s(shost), 0, 2577 sizeof(fc_host_active_fc4s(shost))); 2578 fc_host_active_fc4s(shost)[2] = 1; 2579 fc_host_active_fc4s(shost)[7] = 1; 2580 2581 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2582 spin_lock_irq(shost->host_lock); 2583 vport->load_flag &= ~FC_LOADING; 2584 spin_unlock_irq(shost->host_lock); 2585 } 2586 2587 /** 2588 * lpfc_stop_port_s3 - Stop SLI3 device port 2589 * @phba: pointer to lpfc hba data structure. 2590 * 2591 * This routine is invoked to stop an SLI3 device port, it stops the device 2592 * from generating interrupts and stops the device driver's timers for the 2593 * device. 2594 **/ 2595 static void 2596 lpfc_stop_port_s3(struct lpfc_hba *phba) 2597 { 2598 /* Clear all interrupt enable conditions */ 2599 writel(0, phba->HCregaddr); 2600 readl(phba->HCregaddr); /* flush */ 2601 /* Clear all pending interrupts */ 2602 writel(0xffffffff, phba->HAregaddr); 2603 readl(phba->HAregaddr); /* flush */ 2604 2605 /* Reset some HBA SLI setup states */ 2606 lpfc_stop_hba_timers(phba); 2607 phba->pport->work_port_events = 0; 2608 } 2609 2610 /** 2611 * lpfc_stop_port_s4 - Stop SLI4 device port 2612 * @phba: pointer to lpfc hba data structure. 2613 * 2614 * This routine is invoked to stop an SLI4 device port, it stops the device 2615 * from generating interrupts and stops the device driver's timers for the 2616 * device. 2617 **/ 2618 static void 2619 lpfc_stop_port_s4(struct lpfc_hba *phba) 2620 { 2621 /* Reset some HBA SLI4 setup states */ 2622 lpfc_stop_hba_timers(phba); 2623 phba->pport->work_port_events = 0; 2624 phba->sli4_hba.intr_enable = 0; 2625 /* Hard clear it for now, shall have more graceful way to wait later */ 2626 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 2627 } 2628 2629 /** 2630 * lpfc_stop_port - Wrapper function for stopping hba port 2631 * @phba: Pointer to HBA context object. 2632 * 2633 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 2634 * the API jump table function pointer from the lpfc_hba struct. 2635 **/ 2636 void 2637 lpfc_stop_port(struct lpfc_hba *phba) 2638 { 2639 phba->lpfc_stop_port(phba); 2640 } 2641 2642 /** 2643 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port. 2644 * @phba: pointer to lpfc hba data structure. 2645 * 2646 * This routine is invoked to remove the driver default fcf record from 2647 * the port. This routine currently acts on FCF Index 0. 2648 * 2649 **/ 2650 void 2651 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba) 2652 { 2653 int rc = 0; 2654 LPFC_MBOXQ_t *mboxq; 2655 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record; 2656 uint32_t mbox_tmo, req_len; 2657 uint32_t shdr_status, shdr_add_status; 2658 2659 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2660 if (!mboxq) { 2661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2662 "2020 Failed to allocate mbox for ADD_FCF cmd\n"); 2663 return; 2664 } 2665 2666 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) - 2667 sizeof(struct lpfc_sli4_cfg_mhdr); 2668 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, 2669 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF, 2670 req_len, LPFC_SLI4_MBX_EMBED); 2671 /* 2672 * In phase 1, there is a single FCF index, 0. In phase2, the driver 2673 * supports multiple FCF indices. 2674 */ 2675 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry; 2676 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1); 2677 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record, 2678 phba->fcf.fcf_indx); 2679 2680 if (!phba->sli4_hba.intr_enable) 2681 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 2682 else { 2683 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 2684 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 2685 } 2686 /* The IOCTL status is embedded in the mailbox subheader. */ 2687 shdr_status = bf_get(lpfc_mbox_hdr_status, 2688 &del_fcf_record->header.cfg_shdr.response); 2689 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 2690 &del_fcf_record->header.cfg_shdr.response); 2691 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) { 2692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2693 "2516 DEL FCF of default FCF Index failed " 2694 "mbx status x%x, status x%x add_status x%x\n", 2695 rc, shdr_status, shdr_add_status); 2696 } 2697 if (rc != MBX_TIMEOUT) 2698 mempool_free(mboxq, phba->mbox_mem_pool); 2699 } 2700 2701 /** 2702 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 2703 * @phba: pointer to lpfc hba data structure. 2704 * @acqe_link: pointer to the async link completion queue entry. 2705 * 2706 * This routine is to parse the SLI4 link-attention link fault code and 2707 * translate it into the base driver's read link attention mailbox command 2708 * status. 2709 * 2710 * Return: Link-attention status in terms of base driver's coding. 2711 **/ 2712 static uint16_t 2713 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 2714 struct lpfc_acqe_link *acqe_link) 2715 { 2716 uint16_t latt_fault; 2717 2718 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 2719 case LPFC_ASYNC_LINK_FAULT_NONE: 2720 case LPFC_ASYNC_LINK_FAULT_LOCAL: 2721 case LPFC_ASYNC_LINK_FAULT_REMOTE: 2722 latt_fault = 0; 2723 break; 2724 default: 2725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2726 "0398 Invalid link fault code: x%x\n", 2727 bf_get(lpfc_acqe_link_fault, acqe_link)); 2728 latt_fault = MBXERR_ERROR; 2729 break; 2730 } 2731 return latt_fault; 2732 } 2733 2734 /** 2735 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 2736 * @phba: pointer to lpfc hba data structure. 2737 * @acqe_link: pointer to the async link completion queue entry. 2738 * 2739 * This routine is to parse the SLI4 link attention type and translate it 2740 * into the base driver's link attention type coding. 2741 * 2742 * Return: Link attention type in terms of base driver's coding. 2743 **/ 2744 static uint8_t 2745 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 2746 struct lpfc_acqe_link *acqe_link) 2747 { 2748 uint8_t att_type; 2749 2750 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 2751 case LPFC_ASYNC_LINK_STATUS_DOWN: 2752 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 2753 att_type = AT_LINK_DOWN; 2754 break; 2755 case LPFC_ASYNC_LINK_STATUS_UP: 2756 /* Ignore physical link up events - wait for logical link up */ 2757 att_type = AT_RESERVED; 2758 break; 2759 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 2760 att_type = AT_LINK_UP; 2761 break; 2762 default: 2763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2764 "0399 Invalid link attention type: x%x\n", 2765 bf_get(lpfc_acqe_link_status, acqe_link)); 2766 att_type = AT_RESERVED; 2767 break; 2768 } 2769 return att_type; 2770 } 2771 2772 /** 2773 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 2774 * @phba: pointer to lpfc hba data structure. 2775 * @acqe_link: pointer to the async link completion queue entry. 2776 * 2777 * This routine is to parse the SLI4 link-attention link speed and translate 2778 * it into the base driver's link-attention link speed coding. 2779 * 2780 * Return: Link-attention link speed in terms of base driver's coding. 2781 **/ 2782 static uint8_t 2783 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 2784 struct lpfc_acqe_link *acqe_link) 2785 { 2786 uint8_t link_speed; 2787 2788 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 2789 case LPFC_ASYNC_LINK_SPEED_ZERO: 2790 link_speed = LA_UNKNW_LINK; 2791 break; 2792 case LPFC_ASYNC_LINK_SPEED_10MBPS: 2793 link_speed = LA_UNKNW_LINK; 2794 break; 2795 case LPFC_ASYNC_LINK_SPEED_100MBPS: 2796 link_speed = LA_UNKNW_LINK; 2797 break; 2798 case LPFC_ASYNC_LINK_SPEED_1GBPS: 2799 link_speed = LA_1GHZ_LINK; 2800 break; 2801 case LPFC_ASYNC_LINK_SPEED_10GBPS: 2802 link_speed = LA_10GHZ_LINK; 2803 break; 2804 default: 2805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2806 "0483 Invalid link-attention link speed: x%x\n", 2807 bf_get(lpfc_acqe_link_speed, acqe_link)); 2808 link_speed = LA_UNKNW_LINK; 2809 break; 2810 } 2811 return link_speed; 2812 } 2813 2814 /** 2815 * lpfc_sli4_async_link_evt - Process the asynchronous link event 2816 * @phba: pointer to lpfc hba data structure. 2817 * @acqe_link: pointer to the async link completion queue entry. 2818 * 2819 * This routine is to handle the SLI4 asynchronous link event. 2820 **/ 2821 static void 2822 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 2823 struct lpfc_acqe_link *acqe_link) 2824 { 2825 struct lpfc_dmabuf *mp; 2826 LPFC_MBOXQ_t *pmb; 2827 MAILBOX_t *mb; 2828 READ_LA_VAR *la; 2829 uint8_t att_type; 2830 2831 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 2832 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP) 2833 return; 2834 phba->fcoe_eventtag = acqe_link->event_tag; 2835 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2836 if (!pmb) { 2837 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2838 "0395 The mboxq allocation failed\n"); 2839 return; 2840 } 2841 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2842 if (!mp) { 2843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2844 "0396 The lpfc_dmabuf allocation failed\n"); 2845 goto out_free_pmb; 2846 } 2847 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2848 if (!mp->virt) { 2849 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2850 "0397 The mbuf allocation failed\n"); 2851 goto out_free_dmabuf; 2852 } 2853 2854 /* Cleanup any outstanding ELS commands */ 2855 lpfc_els_flush_all_cmd(phba); 2856 2857 /* Block ELS IOCBs until we have done process link event */ 2858 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2859 2860 /* Update link event statistics */ 2861 phba->sli.slistat.link_event++; 2862 2863 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */ 2864 lpfc_read_la(phba, pmb, mp); 2865 pmb->vport = phba->pport; 2866 2867 /* Parse and translate status field */ 2868 mb = &pmb->u.mb; 2869 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 2870 2871 /* Parse and translate link attention fields */ 2872 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA; 2873 la->eventTag = acqe_link->event_tag; 2874 la->attType = att_type; 2875 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link); 2876 2877 /* Fake the the following irrelvant fields */ 2878 la->topology = TOPOLOGY_PT_PT; 2879 la->granted_AL_PA = 0; 2880 la->il = 0; 2881 la->pb = 0; 2882 la->fa = 0; 2883 la->mm = 0; 2884 2885 /* Keep the link status for extra SLI4 state machine reference */ 2886 phba->sli4_hba.link_state.speed = 2887 bf_get(lpfc_acqe_link_speed, acqe_link); 2888 phba->sli4_hba.link_state.duplex = 2889 bf_get(lpfc_acqe_link_duplex, acqe_link); 2890 phba->sli4_hba.link_state.status = 2891 bf_get(lpfc_acqe_link_status, acqe_link); 2892 phba->sli4_hba.link_state.physical = 2893 bf_get(lpfc_acqe_link_physical, acqe_link); 2894 phba->sli4_hba.link_state.fault = 2895 bf_get(lpfc_acqe_link_fault, acqe_link); 2896 2897 /* Invoke the lpfc_handle_latt mailbox command callback function */ 2898 lpfc_mbx_cmpl_read_la(phba, pmb); 2899 2900 return; 2901 2902 out_free_dmabuf: 2903 kfree(mp); 2904 out_free_pmb: 2905 mempool_free(pmb, phba->mbox_mem_pool); 2906 } 2907 2908 /** 2909 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event 2910 * @phba: pointer to lpfc hba data structure. 2911 * @acqe_link: pointer to the async fcoe completion queue entry. 2912 * 2913 * This routine is to handle the SLI4 asynchronous fcoe event. 2914 **/ 2915 static void 2916 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba, 2917 struct lpfc_acqe_fcoe *acqe_fcoe) 2918 { 2919 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe); 2920 int rc; 2921 2922 phba->fcoe_eventtag = acqe_fcoe->event_tag; 2923 switch (event_type) { 2924 case LPFC_FCOE_EVENT_TYPE_NEW_FCF: 2925 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2926 "2546 New FCF found index 0x%x tag 0x%x\n", 2927 acqe_fcoe->fcf_index, 2928 acqe_fcoe->event_tag); 2929 /* 2930 * If the current FCF is in discovered state, or 2931 * FCF discovery is in progress do nothing. 2932 */ 2933 spin_lock_irq(&phba->hbalock); 2934 if ((phba->fcf.fcf_flag & FCF_DISCOVERED) || 2935 (phba->hba_flag & FCF_DISC_INPROGRESS)) { 2936 spin_unlock_irq(&phba->hbalock); 2937 break; 2938 } 2939 spin_unlock_irq(&phba->hbalock); 2940 2941 /* Read the FCF table and re-discover SAN. */ 2942 rc = lpfc_sli4_read_fcf_record(phba, 2943 LPFC_FCOE_FCF_GET_FIRST); 2944 if (rc) 2945 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2946 "2547 Read FCF record failed 0x%x\n", 2947 rc); 2948 break; 2949 2950 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL: 2951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2952 "2548 FCF Table full count 0x%x tag 0x%x\n", 2953 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe), 2954 acqe_fcoe->event_tag); 2955 break; 2956 2957 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD: 2958 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY, 2959 "2549 FCF disconnected fron network index 0x%x" 2960 " tag 0x%x\n", acqe_fcoe->fcf_index, 2961 acqe_fcoe->event_tag); 2962 /* If the event is not for currently used fcf do nothing */ 2963 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index) 2964 break; 2965 /* 2966 * Currently, driver support only one FCF - so treat this as 2967 * a link down. 2968 */ 2969 lpfc_linkdown(phba); 2970 /* Unregister FCF if no devices connected to it */ 2971 lpfc_unregister_unused_fcf(phba); 2972 break; 2973 2974 default: 2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2976 "0288 Unknown FCoE event type 0x%x event tag " 2977 "0x%x\n", event_type, acqe_fcoe->event_tag); 2978 break; 2979 } 2980 } 2981 2982 /** 2983 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 2984 * @phba: pointer to lpfc hba data structure. 2985 * @acqe_link: pointer to the async dcbx completion queue entry. 2986 * 2987 * This routine is to handle the SLI4 asynchronous dcbx event. 2988 **/ 2989 static void 2990 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 2991 struct lpfc_acqe_dcbx *acqe_dcbx) 2992 { 2993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2994 "0290 The SLI4 DCBX asynchronous event is not " 2995 "handled yet\n"); 2996 } 2997 2998 /** 2999 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3000 * @phba: pointer to lpfc hba data structure. 3001 * 3002 * This routine is invoked by the worker thread to process all the pending 3003 * SLI4 asynchronous events. 3004 **/ 3005 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3006 { 3007 struct lpfc_cq_event *cq_event; 3008 3009 /* First, declare the async event has been handled */ 3010 spin_lock_irq(&phba->hbalock); 3011 phba->hba_flag &= ~ASYNC_EVENT; 3012 spin_unlock_irq(&phba->hbalock); 3013 /* Now, handle all the async events */ 3014 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3015 /* Get the first event from the head of the event queue */ 3016 spin_lock_irq(&phba->hbalock); 3017 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3018 cq_event, struct lpfc_cq_event, list); 3019 spin_unlock_irq(&phba->hbalock); 3020 /* Process the asynchronous event */ 3021 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3022 case LPFC_TRAILER_CODE_LINK: 3023 lpfc_sli4_async_link_evt(phba, 3024 &cq_event->cqe.acqe_link); 3025 break; 3026 case LPFC_TRAILER_CODE_FCOE: 3027 lpfc_sli4_async_fcoe_evt(phba, 3028 &cq_event->cqe.acqe_fcoe); 3029 break; 3030 case LPFC_TRAILER_CODE_DCBX: 3031 lpfc_sli4_async_dcbx_evt(phba, 3032 &cq_event->cqe.acqe_dcbx); 3033 break; 3034 default: 3035 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3036 "1804 Invalid asynchrous event code: " 3037 "x%x\n", bf_get(lpfc_trailer_code, 3038 &cq_event->cqe.mcqe_cmpl)); 3039 break; 3040 } 3041 /* Free the completion event processed to the free pool */ 3042 lpfc_sli4_cq_event_release(phba, cq_event); 3043 } 3044 } 3045 3046 /** 3047 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3048 * @phba: pointer to lpfc hba data structure. 3049 * @dev_grp: The HBA PCI-Device group number. 3050 * 3051 * This routine is invoked to set up the per HBA PCI-Device group function 3052 * API jump table entries. 3053 * 3054 * Return: 0 if success, otherwise -ENODEV 3055 **/ 3056 int 3057 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3058 { 3059 int rc; 3060 3061 /* Set up lpfc PCI-device group */ 3062 phba->pci_dev_grp = dev_grp; 3063 3064 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3065 if (dev_grp == LPFC_PCI_DEV_OC) 3066 phba->sli_rev = LPFC_SLI_REV4; 3067 3068 /* Set up device INIT API function jump table */ 3069 rc = lpfc_init_api_table_setup(phba, dev_grp); 3070 if (rc) 3071 return -ENODEV; 3072 /* Set up SCSI API function jump table */ 3073 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3074 if (rc) 3075 return -ENODEV; 3076 /* Set up SLI API function jump table */ 3077 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3078 if (rc) 3079 return -ENODEV; 3080 /* Set up MBOX API function jump table */ 3081 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3082 if (rc) 3083 return -ENODEV; 3084 3085 return 0; 3086 } 3087 3088 /** 3089 * lpfc_log_intr_mode - Log the active interrupt mode 3090 * @phba: pointer to lpfc hba data structure. 3091 * @intr_mode: active interrupt mode adopted. 3092 * 3093 * This routine it invoked to log the currently used active interrupt mode 3094 * to the device. 3095 **/ 3096 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3097 { 3098 switch (intr_mode) { 3099 case 0: 3100 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3101 "0470 Enable INTx interrupt mode.\n"); 3102 break; 3103 case 1: 3104 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3105 "0481 Enabled MSI interrupt mode.\n"); 3106 break; 3107 case 2: 3108 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3109 "0480 Enabled MSI-X interrupt mode.\n"); 3110 break; 3111 default: 3112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3113 "0482 Illegal interrupt mode.\n"); 3114 break; 3115 } 3116 return; 3117 } 3118 3119 /** 3120 * lpfc_enable_pci_dev - Enable a generic PCI device. 3121 * @phba: pointer to lpfc hba data structure. 3122 * 3123 * This routine is invoked to enable the PCI device that is common to all 3124 * PCI devices. 3125 * 3126 * Return codes 3127 * 0 - sucessful 3128 * other values - error 3129 **/ 3130 static int 3131 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3132 { 3133 struct pci_dev *pdev; 3134 int bars; 3135 3136 /* Obtain PCI device reference */ 3137 if (!phba->pcidev) 3138 goto out_error; 3139 else 3140 pdev = phba->pcidev; 3141 /* Select PCI BARs */ 3142 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3143 /* Enable PCI device */ 3144 if (pci_enable_device_mem(pdev)) 3145 goto out_error; 3146 /* Request PCI resource for the device */ 3147 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3148 goto out_disable_device; 3149 /* Set up device as PCI master and save state for EEH */ 3150 pci_set_master(pdev); 3151 pci_try_set_mwi(pdev); 3152 pci_save_state(pdev); 3153 3154 return 0; 3155 3156 out_disable_device: 3157 pci_disable_device(pdev); 3158 out_error: 3159 return -ENODEV; 3160 } 3161 3162 /** 3163 * lpfc_disable_pci_dev - Disable a generic PCI device. 3164 * @phba: pointer to lpfc hba data structure. 3165 * 3166 * This routine is invoked to disable the PCI device that is common to all 3167 * PCI devices. 3168 **/ 3169 static void 3170 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3171 { 3172 struct pci_dev *pdev; 3173 int bars; 3174 3175 /* Obtain PCI device reference */ 3176 if (!phba->pcidev) 3177 return; 3178 else 3179 pdev = phba->pcidev; 3180 /* Select PCI BARs */ 3181 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3182 /* Release PCI resource and disable PCI device */ 3183 pci_release_selected_regions(pdev, bars); 3184 pci_disable_device(pdev); 3185 /* Null out PCI private reference to driver */ 3186 pci_set_drvdata(pdev, NULL); 3187 3188 return; 3189 } 3190 3191 /** 3192 * lpfc_reset_hba - Reset a hba 3193 * @phba: pointer to lpfc hba data structure. 3194 * 3195 * This routine is invoked to reset a hba device. It brings the HBA 3196 * offline, performs a board restart, and then brings the board back 3197 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 3198 * on outstanding mailbox commands. 3199 **/ 3200 void 3201 lpfc_reset_hba(struct lpfc_hba *phba) 3202 { 3203 /* If resets are disabled then set error state and return. */ 3204 if (!phba->cfg_enable_hba_reset) { 3205 phba->link_state = LPFC_HBA_ERROR; 3206 return; 3207 } 3208 lpfc_offline_prep(phba); 3209 lpfc_offline(phba); 3210 lpfc_sli_brdrestart(phba); 3211 lpfc_online(phba); 3212 lpfc_unblock_mgmt_io(phba); 3213 } 3214 3215 /** 3216 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 3217 * @phba: pointer to lpfc hba data structure. 3218 * 3219 * This routine is invoked to set up the driver internal resources specific to 3220 * support the SLI-3 HBA device it attached to. 3221 * 3222 * Return codes 3223 * 0 - sucessful 3224 * other values - error 3225 **/ 3226 static int 3227 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 3228 { 3229 struct lpfc_sli *psli; 3230 3231 /* 3232 * Initialize timers used by driver 3233 */ 3234 3235 /* Heartbeat timer */ 3236 init_timer(&phba->hb_tmofunc); 3237 phba->hb_tmofunc.function = lpfc_hb_timeout; 3238 phba->hb_tmofunc.data = (unsigned long)phba; 3239 3240 psli = &phba->sli; 3241 /* MBOX heartbeat timer */ 3242 init_timer(&psli->mbox_tmo); 3243 psli->mbox_tmo.function = lpfc_mbox_timeout; 3244 psli->mbox_tmo.data = (unsigned long) phba; 3245 /* FCP polling mode timer */ 3246 init_timer(&phba->fcp_poll_timer); 3247 phba->fcp_poll_timer.function = lpfc_poll_timeout; 3248 phba->fcp_poll_timer.data = (unsigned long) phba; 3249 /* Fabric block timer */ 3250 init_timer(&phba->fabric_block_timer); 3251 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3252 phba->fabric_block_timer.data = (unsigned long) phba; 3253 /* EA polling mode timer */ 3254 init_timer(&phba->eratt_poll); 3255 phba->eratt_poll.function = lpfc_poll_eratt; 3256 phba->eratt_poll.data = (unsigned long) phba; 3257 3258 /* Host attention work mask setup */ 3259 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 3260 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 3261 3262 /* Get all the module params for configuring this host */ 3263 lpfc_get_cfgparam(phba); 3264 /* 3265 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3266 * used to create the sg_dma_buf_pool must be dynamically calculated. 3267 * 2 segments are added since the IOCB needs a command and response bde. 3268 */ 3269 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 3270 sizeof(struct fcp_rsp) + 3271 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 3272 3273 if (phba->cfg_enable_bg) { 3274 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 3275 phba->cfg_sg_dma_buf_size += 3276 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 3277 } 3278 3279 /* Also reinitialize the host templates with new values. */ 3280 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3281 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 3282 3283 phba->max_vpi = LPFC_MAX_VPI; 3284 /* This will be set to correct value after config_port mbox */ 3285 phba->max_vports = 0; 3286 3287 /* 3288 * Initialize the SLI Layer to run with lpfc HBAs. 3289 */ 3290 lpfc_sli_setup(phba); 3291 lpfc_sli_queue_setup(phba); 3292 3293 /* Allocate device driver memory */ 3294 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 3295 return -ENOMEM; 3296 3297 return 0; 3298 } 3299 3300 /** 3301 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 3302 * @phba: pointer to lpfc hba data structure. 3303 * 3304 * This routine is invoked to unset the driver internal resources set up 3305 * specific for supporting the SLI-3 HBA device it attached to. 3306 **/ 3307 static void 3308 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 3309 { 3310 /* Free device driver memory allocated */ 3311 lpfc_mem_free_all(phba); 3312 3313 return; 3314 } 3315 3316 /** 3317 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 3318 * @phba: pointer to lpfc hba data structure. 3319 * 3320 * This routine is invoked to set up the driver internal resources specific to 3321 * support the SLI-4 HBA device it attached to. 3322 * 3323 * Return codes 3324 * 0 - sucessful 3325 * other values - error 3326 **/ 3327 static int 3328 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 3329 { 3330 struct lpfc_sli *psli; 3331 int rc; 3332 int i, hbq_count; 3333 3334 /* Before proceed, wait for POST done and device ready */ 3335 rc = lpfc_sli4_post_status_check(phba); 3336 if (rc) 3337 return -ENODEV; 3338 3339 /* 3340 * Initialize timers used by driver 3341 */ 3342 3343 /* Heartbeat timer */ 3344 init_timer(&phba->hb_tmofunc); 3345 phba->hb_tmofunc.function = lpfc_hb_timeout; 3346 phba->hb_tmofunc.data = (unsigned long)phba; 3347 3348 psli = &phba->sli; 3349 /* MBOX heartbeat timer */ 3350 init_timer(&psli->mbox_tmo); 3351 psli->mbox_tmo.function = lpfc_mbox_timeout; 3352 psli->mbox_tmo.data = (unsigned long) phba; 3353 /* Fabric block timer */ 3354 init_timer(&phba->fabric_block_timer); 3355 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 3356 phba->fabric_block_timer.data = (unsigned long) phba; 3357 /* EA polling mode timer */ 3358 init_timer(&phba->eratt_poll); 3359 phba->eratt_poll.function = lpfc_poll_eratt; 3360 phba->eratt_poll.data = (unsigned long) phba; 3361 /* 3362 * We need to do a READ_CONFIG mailbox command here before 3363 * calling lpfc_get_cfgparam. For VFs this will report the 3364 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 3365 * All of the resources allocated 3366 * for this Port are tied to these values. 3367 */ 3368 /* Get all the module params for configuring this host */ 3369 lpfc_get_cfgparam(phba); 3370 phba->max_vpi = LPFC_MAX_VPI; 3371 /* This will be set to correct value after the read_config mbox */ 3372 phba->max_vports = 0; 3373 3374 /* Program the default value of vlan_id and fc_map */ 3375 phba->valid_vlan = 0; 3376 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 3377 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 3378 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 3379 3380 /* 3381 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 3382 * used to create the sg_dma_buf_pool must be dynamically calculated. 3383 * 2 segments are added since the IOCB needs a command and response bde. 3384 * To insure that the scsi sgl does not cross a 4k page boundary only 3385 * sgl sizes of 1k, 2k, 4k, and 8k are supported. 3386 * Table of sgl sizes and seg_cnt: 3387 * sgl size, sg_seg_cnt total seg 3388 * 1k 50 52 3389 * 2k 114 116 3390 * 4k 242 244 3391 * 8k 498 500 3392 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024 3393 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048 3394 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096 3395 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192 3396 */ 3397 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT) 3398 phba->cfg_sg_seg_cnt = 50; 3399 else if (phba->cfg_sg_seg_cnt <= 114) 3400 phba->cfg_sg_seg_cnt = 114; 3401 else if (phba->cfg_sg_seg_cnt <= 242) 3402 phba->cfg_sg_seg_cnt = 242; 3403 else 3404 phba->cfg_sg_seg_cnt = 498; 3405 3406 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) 3407 + sizeof(struct fcp_rsp); 3408 phba->cfg_sg_dma_buf_size += 3409 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)); 3410 3411 /* Initialize buffer queue management fields */ 3412 hbq_count = lpfc_sli_hbq_count(); 3413 for (i = 0; i < hbq_count; ++i) 3414 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 3415 INIT_LIST_HEAD(&phba->rb_pend_list); 3416 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 3417 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 3418 3419 /* 3420 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 3421 */ 3422 /* Initialize the Abort scsi buffer list used by driver */ 3423 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 3424 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 3425 /* This abort list used by worker thread */ 3426 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 3427 3428 /* 3429 * Initialize dirver internal slow-path work queues 3430 */ 3431 3432 /* Driver internel slow-path CQ Event pool */ 3433 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 3434 /* Response IOCB work queue list */ 3435 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue); 3436 /* Asynchronous event CQ Event work queue list */ 3437 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 3438 /* Fast-path XRI aborted CQ Event work queue list */ 3439 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 3440 /* Slow-path XRI aborted CQ Event work queue list */ 3441 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 3442 /* Receive queue CQ Event work queue list */ 3443 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 3444 3445 /* Initialize the driver internal SLI layer lists. */ 3446 lpfc_sli_setup(phba); 3447 lpfc_sli_queue_setup(phba); 3448 3449 /* Allocate device driver memory */ 3450 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 3451 if (rc) 3452 return -ENOMEM; 3453 3454 /* Create the bootstrap mailbox command */ 3455 rc = lpfc_create_bootstrap_mbox(phba); 3456 if (unlikely(rc)) 3457 goto out_free_mem; 3458 3459 /* Set up the host's endian order with the device. */ 3460 rc = lpfc_setup_endian_order(phba); 3461 if (unlikely(rc)) 3462 goto out_free_bsmbx; 3463 3464 /* Set up the hba's configuration parameters. */ 3465 rc = lpfc_sli4_read_config(phba); 3466 if (unlikely(rc)) 3467 goto out_free_bsmbx; 3468 3469 /* Perform a function reset */ 3470 rc = lpfc_pci_function_reset(phba); 3471 if (unlikely(rc)) 3472 goto out_free_bsmbx; 3473 3474 /* Create all the SLI4 queues */ 3475 rc = lpfc_sli4_queue_create(phba); 3476 if (rc) 3477 goto out_free_bsmbx; 3478 3479 /* Create driver internal CQE event pool */ 3480 rc = lpfc_sli4_cq_event_pool_create(phba); 3481 if (rc) 3482 goto out_destroy_queue; 3483 3484 /* Initialize and populate the iocb list per host */ 3485 rc = lpfc_init_sgl_list(phba); 3486 if (rc) { 3487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3488 "1400 Failed to initialize sgl list.\n"); 3489 goto out_destroy_cq_event_pool; 3490 } 3491 rc = lpfc_init_active_sgl_array(phba); 3492 if (rc) { 3493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3494 "1430 Failed to initialize sgl list.\n"); 3495 goto out_free_sgl_list; 3496 } 3497 3498 rc = lpfc_sli4_init_rpi_hdrs(phba); 3499 if (rc) { 3500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3501 "1432 Failed to initialize rpi headers.\n"); 3502 goto out_free_active_sgl; 3503 } 3504 3505 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 3506 phba->cfg_fcp_eq_count), GFP_KERNEL); 3507 if (!phba->sli4_hba.fcp_eq_hdl) { 3508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3509 "2572 Failed allocate memory for fast-path " 3510 "per-EQ handle array\n"); 3511 goto out_remove_rpi_hdrs; 3512 } 3513 3514 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 3515 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 3516 if (!phba->sli4_hba.msix_entries) { 3517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3518 "2573 Failed allocate memory for msi-x " 3519 "interrupt vector entries\n"); 3520 goto out_free_fcp_eq_hdl; 3521 } 3522 3523 return rc; 3524 3525 out_free_fcp_eq_hdl: 3526 kfree(phba->sli4_hba.fcp_eq_hdl); 3527 out_remove_rpi_hdrs: 3528 lpfc_sli4_remove_rpi_hdrs(phba); 3529 out_free_active_sgl: 3530 lpfc_free_active_sgl(phba); 3531 out_free_sgl_list: 3532 lpfc_free_sgl_list(phba); 3533 out_destroy_cq_event_pool: 3534 lpfc_sli4_cq_event_pool_destroy(phba); 3535 out_destroy_queue: 3536 lpfc_sli4_queue_destroy(phba); 3537 out_free_bsmbx: 3538 lpfc_destroy_bootstrap_mbox(phba); 3539 out_free_mem: 3540 lpfc_mem_free(phba); 3541 return rc; 3542 } 3543 3544 /** 3545 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 3546 * @phba: pointer to lpfc hba data structure. 3547 * 3548 * This routine is invoked to unset the driver internal resources set up 3549 * specific for supporting the SLI-4 HBA device it attached to. 3550 **/ 3551 static void 3552 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 3553 { 3554 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 3555 3556 /* unregister default FCFI from the HBA */ 3557 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); 3558 3559 /* Free the default FCR table */ 3560 lpfc_sli_remove_dflt_fcf(phba); 3561 3562 /* Free memory allocated for msi-x interrupt vector entries */ 3563 kfree(phba->sli4_hba.msix_entries); 3564 3565 /* Free memory allocated for fast-path work queue handles */ 3566 kfree(phba->sli4_hba.fcp_eq_hdl); 3567 3568 /* Free the allocated rpi headers. */ 3569 lpfc_sli4_remove_rpi_hdrs(phba); 3570 lpfc_sli4_remove_rpis(phba); 3571 3572 /* Free the ELS sgl list */ 3573 lpfc_free_active_sgl(phba); 3574 lpfc_free_sgl_list(phba); 3575 3576 /* Free the SCSI sgl management array */ 3577 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3578 3579 /* Free the SLI4 queues */ 3580 lpfc_sli4_queue_destroy(phba); 3581 3582 /* Free the completion queue EQ event pool */ 3583 lpfc_sli4_cq_event_release_all(phba); 3584 lpfc_sli4_cq_event_pool_destroy(phba); 3585 3586 /* Reset SLI4 HBA FCoE function */ 3587 lpfc_pci_function_reset(phba); 3588 3589 /* Free the bsmbx region. */ 3590 lpfc_destroy_bootstrap_mbox(phba); 3591 3592 /* Free the SLI Layer memory with SLI4 HBAs */ 3593 lpfc_mem_free_all(phba); 3594 3595 /* Free the current connect table */ 3596 list_for_each_entry_safe(conn_entry, next_conn_entry, 3597 &phba->fcf_conn_rec_list, list) 3598 kfree(conn_entry); 3599 3600 return; 3601 } 3602 3603 /** 3604 * lpfc_init_api_table_setup - Set up init api fucntion jump table 3605 * @phba: The hba struct for which this call is being executed. 3606 * @dev_grp: The HBA PCI-Device group number. 3607 * 3608 * This routine sets up the device INIT interface API function jump table 3609 * in @phba struct. 3610 * 3611 * Returns: 0 - success, -ENODEV - failure. 3612 **/ 3613 int 3614 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3615 { 3616 switch (dev_grp) { 3617 case LPFC_PCI_DEV_LP: 3618 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 3619 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 3620 phba->lpfc_stop_port = lpfc_stop_port_s3; 3621 break; 3622 case LPFC_PCI_DEV_OC: 3623 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 3624 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 3625 phba->lpfc_stop_port = lpfc_stop_port_s4; 3626 break; 3627 default: 3628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3629 "1431 Invalid HBA PCI-device group: 0x%x\n", 3630 dev_grp); 3631 return -ENODEV; 3632 break; 3633 } 3634 return 0; 3635 } 3636 3637 /** 3638 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 3639 * @phba: pointer to lpfc hba data structure. 3640 * 3641 * This routine is invoked to set up the driver internal resources before the 3642 * device specific resource setup to support the HBA device it attached to. 3643 * 3644 * Return codes 3645 * 0 - sucessful 3646 * other values - error 3647 **/ 3648 static int 3649 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 3650 { 3651 /* 3652 * Driver resources common to all SLI revisions 3653 */ 3654 atomic_set(&phba->fast_event_count, 0); 3655 spin_lock_init(&phba->hbalock); 3656 3657 /* Initialize ndlp management spinlock */ 3658 spin_lock_init(&phba->ndlp_lock); 3659 3660 INIT_LIST_HEAD(&phba->port_list); 3661 INIT_LIST_HEAD(&phba->work_list); 3662 init_waitqueue_head(&phba->wait_4_mlo_m_q); 3663 3664 /* Initialize the wait queue head for the kernel thread */ 3665 init_waitqueue_head(&phba->work_waitq); 3666 3667 /* Initialize the scsi buffer list used by driver for scsi IO */ 3668 spin_lock_init(&phba->scsi_buf_list_lock); 3669 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 3670 3671 /* Initialize the fabric iocb list */ 3672 INIT_LIST_HEAD(&phba->fabric_iocb_list); 3673 3674 /* Initialize list to save ELS buffers */ 3675 INIT_LIST_HEAD(&phba->elsbuf); 3676 3677 /* Initialize FCF connection rec list */ 3678 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 3679 3680 return 0; 3681 } 3682 3683 /** 3684 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 3685 * @phba: pointer to lpfc hba data structure. 3686 * 3687 * This routine is invoked to set up the driver internal resources after the 3688 * device specific resource setup to support the HBA device it attached to. 3689 * 3690 * Return codes 3691 * 0 - sucessful 3692 * other values - error 3693 **/ 3694 static int 3695 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 3696 { 3697 int error; 3698 3699 /* Startup the kernel thread for this host adapter. */ 3700 phba->worker_thread = kthread_run(lpfc_do_work, phba, 3701 "lpfc_worker_%d", phba->brd_no); 3702 if (IS_ERR(phba->worker_thread)) { 3703 error = PTR_ERR(phba->worker_thread); 3704 return error; 3705 } 3706 3707 return 0; 3708 } 3709 3710 /** 3711 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 3712 * @phba: pointer to lpfc hba data structure. 3713 * 3714 * This routine is invoked to unset the driver internal resources set up after 3715 * the device specific resource setup for supporting the HBA device it 3716 * attached to. 3717 **/ 3718 static void 3719 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 3720 { 3721 /* Stop kernel worker thread */ 3722 kthread_stop(phba->worker_thread); 3723 } 3724 3725 /** 3726 * lpfc_free_iocb_list - Free iocb list. 3727 * @phba: pointer to lpfc hba data structure. 3728 * 3729 * This routine is invoked to free the driver's IOCB list and memory. 3730 **/ 3731 static void 3732 lpfc_free_iocb_list(struct lpfc_hba *phba) 3733 { 3734 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 3735 3736 spin_lock_irq(&phba->hbalock); 3737 list_for_each_entry_safe(iocbq_entry, iocbq_next, 3738 &phba->lpfc_iocb_list, list) { 3739 list_del(&iocbq_entry->list); 3740 kfree(iocbq_entry); 3741 phba->total_iocbq_bufs--; 3742 } 3743 spin_unlock_irq(&phba->hbalock); 3744 3745 return; 3746 } 3747 3748 /** 3749 * lpfc_init_iocb_list - Allocate and initialize iocb list. 3750 * @phba: pointer to lpfc hba data structure. 3751 * 3752 * This routine is invoked to allocate and initizlize the driver's IOCB 3753 * list and set up the IOCB tag array accordingly. 3754 * 3755 * Return codes 3756 * 0 - sucessful 3757 * other values - error 3758 **/ 3759 static int 3760 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 3761 { 3762 struct lpfc_iocbq *iocbq_entry = NULL; 3763 uint16_t iotag; 3764 int i; 3765 3766 /* Initialize and populate the iocb list per host. */ 3767 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 3768 for (i = 0; i < iocb_count; i++) { 3769 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 3770 if (iocbq_entry == NULL) { 3771 printk(KERN_ERR "%s: only allocated %d iocbs of " 3772 "expected %d count. Unloading driver.\n", 3773 __func__, i, LPFC_IOCB_LIST_CNT); 3774 goto out_free_iocbq; 3775 } 3776 3777 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 3778 if (iotag == 0) { 3779 kfree(iocbq_entry); 3780 printk(KERN_ERR "%s: failed to allocate IOTAG. " 3781 "Unloading driver.\n", __func__); 3782 goto out_free_iocbq; 3783 } 3784 iocbq_entry->sli4_xritag = NO_XRI; 3785 3786 spin_lock_irq(&phba->hbalock); 3787 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 3788 phba->total_iocbq_bufs++; 3789 spin_unlock_irq(&phba->hbalock); 3790 } 3791 3792 return 0; 3793 3794 out_free_iocbq: 3795 lpfc_free_iocb_list(phba); 3796 3797 return -ENOMEM; 3798 } 3799 3800 /** 3801 * lpfc_free_sgl_list - Free sgl list. 3802 * @phba: pointer to lpfc hba data structure. 3803 * 3804 * This routine is invoked to free the driver's sgl list and memory. 3805 **/ 3806 static void 3807 lpfc_free_sgl_list(struct lpfc_hba *phba) 3808 { 3809 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 3810 LIST_HEAD(sglq_list); 3811 int rc = 0; 3812 3813 spin_lock_irq(&phba->hbalock); 3814 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 3815 spin_unlock_irq(&phba->hbalock); 3816 3817 list_for_each_entry_safe(sglq_entry, sglq_next, 3818 &sglq_list, list) { 3819 list_del(&sglq_entry->list); 3820 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 3821 kfree(sglq_entry); 3822 phba->sli4_hba.total_sglq_bufs--; 3823 } 3824 rc = lpfc_sli4_remove_all_sgl_pages(phba); 3825 if (rc) { 3826 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3827 "2005 Unable to deregister pages from HBA: %x", rc); 3828 } 3829 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3830 } 3831 3832 /** 3833 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 3834 * @phba: pointer to lpfc hba data structure. 3835 * 3836 * This routine is invoked to allocate the driver's active sgl memory. 3837 * This array will hold the sglq_entry's for active IOs. 3838 **/ 3839 static int 3840 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 3841 { 3842 int size; 3843 size = sizeof(struct lpfc_sglq *); 3844 size *= phba->sli4_hba.max_cfg_param.max_xri; 3845 3846 phba->sli4_hba.lpfc_sglq_active_list = 3847 kzalloc(size, GFP_KERNEL); 3848 if (!phba->sli4_hba.lpfc_sglq_active_list) 3849 return -ENOMEM; 3850 return 0; 3851 } 3852 3853 /** 3854 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 3855 * @phba: pointer to lpfc hba data structure. 3856 * 3857 * This routine is invoked to walk through the array of active sglq entries 3858 * and free all of the resources. 3859 * This is just a place holder for now. 3860 **/ 3861 static void 3862 lpfc_free_active_sgl(struct lpfc_hba *phba) 3863 { 3864 kfree(phba->sli4_hba.lpfc_sglq_active_list); 3865 } 3866 3867 /** 3868 * lpfc_init_sgl_list - Allocate and initialize sgl list. 3869 * @phba: pointer to lpfc hba data structure. 3870 * 3871 * This routine is invoked to allocate and initizlize the driver's sgl 3872 * list and set up the sgl xritag tag array accordingly. 3873 * 3874 * Return codes 3875 * 0 - sucessful 3876 * other values - error 3877 **/ 3878 static int 3879 lpfc_init_sgl_list(struct lpfc_hba *phba) 3880 { 3881 struct lpfc_sglq *sglq_entry = NULL; 3882 int i; 3883 int els_xri_cnt; 3884 3885 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3887 "2400 lpfc_init_sgl_list els %d.\n", 3888 els_xri_cnt); 3889 /* Initialize and populate the sglq list per host/VF. */ 3890 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 3891 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 3892 3893 /* Sanity check on XRI management */ 3894 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 3895 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3896 "2562 No room left for SCSI XRI allocation: " 3897 "max_xri=%d, els_xri=%d\n", 3898 phba->sli4_hba.max_cfg_param.max_xri, 3899 els_xri_cnt); 3900 return -ENOMEM; 3901 } 3902 3903 /* Allocate memory for the ELS XRI management array */ 3904 phba->sli4_hba.lpfc_els_sgl_array = 3905 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 3906 GFP_KERNEL); 3907 3908 if (!phba->sli4_hba.lpfc_els_sgl_array) { 3909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3910 "2401 Failed to allocate memory for ELS " 3911 "XRI management array of size %d.\n", 3912 els_xri_cnt); 3913 return -ENOMEM; 3914 } 3915 3916 /* Keep the SCSI XRI into the XRI management array */ 3917 phba->sli4_hba.scsi_xri_max = 3918 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3919 phba->sli4_hba.scsi_xri_cnt = 0; 3920 3921 phba->sli4_hba.lpfc_scsi_psb_array = 3922 kzalloc((sizeof(struct lpfc_scsi_buf *) * 3923 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 3924 3925 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 3926 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3927 "2563 Failed to allocate memory for SCSI " 3928 "XRI management array of size %d.\n", 3929 phba->sli4_hba.scsi_xri_max); 3930 kfree(phba->sli4_hba.lpfc_els_sgl_array); 3931 return -ENOMEM; 3932 } 3933 3934 for (i = 0; i < els_xri_cnt; i++) { 3935 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 3936 if (sglq_entry == NULL) { 3937 printk(KERN_ERR "%s: only allocated %d sgls of " 3938 "expected %d count. Unloading driver.\n", 3939 __func__, i, els_xri_cnt); 3940 goto out_free_mem; 3941 } 3942 3943 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba); 3944 if (sglq_entry->sli4_xritag == NO_XRI) { 3945 kfree(sglq_entry); 3946 printk(KERN_ERR "%s: failed to allocate XRI.\n" 3947 "Unloading driver.\n", __func__); 3948 goto out_free_mem; 3949 } 3950 sglq_entry->buff_type = GEN_BUFF_TYPE; 3951 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 3952 if (sglq_entry->virt == NULL) { 3953 kfree(sglq_entry); 3954 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 3955 "Unloading driver.\n", __func__); 3956 goto out_free_mem; 3957 } 3958 sglq_entry->sgl = sglq_entry->virt; 3959 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3960 3961 /* The list order is used by later block SGL registraton */ 3962 spin_lock_irq(&phba->hbalock); 3963 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 3964 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 3965 phba->sli4_hba.total_sglq_bufs++; 3966 spin_unlock_irq(&phba->hbalock); 3967 } 3968 return 0; 3969 3970 out_free_mem: 3971 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 3972 lpfc_free_sgl_list(phba); 3973 return -ENOMEM; 3974 } 3975 3976 /** 3977 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 3978 * @phba: pointer to lpfc hba data structure. 3979 * 3980 * This routine is invoked to post rpi header templates to the 3981 * HBA consistent with the SLI-4 interface spec. This routine 3982 * posts a PAGE_SIZE memory region to the port to hold up to 3983 * PAGE_SIZE modulo 64 rpi context headers. 3984 * No locks are held here because this is an initialization routine 3985 * called only from probe or lpfc_online when interrupts are not 3986 * enabled and the driver is reinitializing the device. 3987 * 3988 * Return codes 3989 * 0 - sucessful 3990 * ENOMEM - No availble memory 3991 * EIO - The mailbox failed to complete successfully. 3992 **/ 3993 int 3994 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 3995 { 3996 int rc = 0; 3997 int longs; 3998 uint16_t rpi_count; 3999 struct lpfc_rpi_hdr *rpi_hdr; 4000 4001 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4002 4003 /* 4004 * Provision an rpi bitmask range for discovery. The total count 4005 * is the difference between max and base + 1. 4006 */ 4007 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base + 4008 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4009 4010 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG; 4011 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long), 4012 GFP_KERNEL); 4013 if (!phba->sli4_hba.rpi_bmask) 4014 return -ENOMEM; 4015 4016 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 4017 if (!rpi_hdr) { 4018 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 4019 "0391 Error during rpi post operation\n"); 4020 lpfc_sli4_remove_rpis(phba); 4021 rc = -ENODEV; 4022 } 4023 4024 return rc; 4025 } 4026 4027 /** 4028 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 4029 * @phba: pointer to lpfc hba data structure. 4030 * 4031 * This routine is invoked to allocate a single 4KB memory region to 4032 * support rpis and stores them in the phba. This single region 4033 * provides support for up to 64 rpis. The region is used globally 4034 * by the device. 4035 * 4036 * Returns: 4037 * A valid rpi hdr on success. 4038 * A NULL pointer on any failure. 4039 **/ 4040 struct lpfc_rpi_hdr * 4041 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 4042 { 4043 uint16_t rpi_limit, curr_rpi_range; 4044 struct lpfc_dmabuf *dmabuf; 4045 struct lpfc_rpi_hdr *rpi_hdr; 4046 4047 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 4048 phba->sli4_hba.max_cfg_param.max_rpi - 1; 4049 4050 spin_lock_irq(&phba->hbalock); 4051 curr_rpi_range = phba->sli4_hba.next_rpi; 4052 spin_unlock_irq(&phba->hbalock); 4053 4054 /* 4055 * The port has a limited number of rpis. The increment here 4056 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 4057 * and to allow the full max_rpi range per port. 4058 */ 4059 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 4060 return NULL; 4061 4062 /* 4063 * First allocate the protocol header region for the port. The 4064 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 4065 */ 4066 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4067 if (!dmabuf) 4068 return NULL; 4069 4070 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4071 LPFC_HDR_TEMPLATE_SIZE, 4072 &dmabuf->phys, 4073 GFP_KERNEL); 4074 if (!dmabuf->virt) { 4075 rpi_hdr = NULL; 4076 goto err_free_dmabuf; 4077 } 4078 4079 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 4080 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 4081 rpi_hdr = NULL; 4082 goto err_free_coherent; 4083 } 4084 4085 /* Save the rpi header data for cleanup later. */ 4086 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 4087 if (!rpi_hdr) 4088 goto err_free_coherent; 4089 4090 rpi_hdr->dmabuf = dmabuf; 4091 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 4092 rpi_hdr->page_count = 1; 4093 spin_lock_irq(&phba->hbalock); 4094 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi; 4095 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 4096 4097 /* 4098 * The next_rpi stores the next module-64 rpi value to post 4099 * in any subsequent rpi memory region postings. 4100 */ 4101 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT; 4102 spin_unlock_irq(&phba->hbalock); 4103 return rpi_hdr; 4104 4105 err_free_coherent: 4106 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 4107 dmabuf->virt, dmabuf->phys); 4108 err_free_dmabuf: 4109 kfree(dmabuf); 4110 return NULL; 4111 } 4112 4113 /** 4114 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 4115 * @phba: pointer to lpfc hba data structure. 4116 * 4117 * This routine is invoked to remove all memory resources allocated 4118 * to support rpis. This routine presumes the caller has released all 4119 * rpis consumed by fabric or port logins and is prepared to have 4120 * the header pages removed. 4121 **/ 4122 void 4123 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 4124 { 4125 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 4126 4127 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 4128 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 4129 list_del(&rpi_hdr->list); 4130 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 4131 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 4132 kfree(rpi_hdr->dmabuf); 4133 kfree(rpi_hdr); 4134 } 4135 4136 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4137 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask)); 4138 } 4139 4140 /** 4141 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 4142 * @pdev: pointer to pci device data structure. 4143 * 4144 * This routine is invoked to allocate the driver hba data structure for an 4145 * HBA device. If the allocation is successful, the phba reference to the 4146 * PCI device data structure is set. 4147 * 4148 * Return codes 4149 * pointer to @phba - sucessful 4150 * NULL - error 4151 **/ 4152 static struct lpfc_hba * 4153 lpfc_hba_alloc(struct pci_dev *pdev) 4154 { 4155 struct lpfc_hba *phba; 4156 4157 /* Allocate memory for HBA structure */ 4158 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 4159 if (!phba) { 4160 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 4161 return NULL; 4162 } 4163 4164 /* Set reference to PCI device in HBA structure */ 4165 phba->pcidev = pdev; 4166 4167 /* Assign an unused board number */ 4168 phba->brd_no = lpfc_get_instance(); 4169 if (phba->brd_no < 0) { 4170 kfree(phba); 4171 return NULL; 4172 } 4173 4174 mutex_init(&phba->ct_event_mutex); 4175 INIT_LIST_HEAD(&phba->ct_ev_waiters); 4176 4177 return phba; 4178 } 4179 4180 /** 4181 * lpfc_hba_free - Free driver hba data structure with a device. 4182 * @phba: pointer to lpfc hba data structure. 4183 * 4184 * This routine is invoked to free the driver hba data structure with an 4185 * HBA device. 4186 **/ 4187 static void 4188 lpfc_hba_free(struct lpfc_hba *phba) 4189 { 4190 /* Release the driver assigned board number */ 4191 idr_remove(&lpfc_hba_index, phba->brd_no); 4192 4193 kfree(phba); 4194 return; 4195 } 4196 4197 /** 4198 * lpfc_create_shost - Create hba physical port with associated scsi host. 4199 * @phba: pointer to lpfc hba data structure. 4200 * 4201 * This routine is invoked to create HBA physical port and associate a SCSI 4202 * host with it. 4203 * 4204 * Return codes 4205 * 0 - sucessful 4206 * other values - error 4207 **/ 4208 static int 4209 lpfc_create_shost(struct lpfc_hba *phba) 4210 { 4211 struct lpfc_vport *vport; 4212 struct Scsi_Host *shost; 4213 4214 /* Initialize HBA FC structure */ 4215 phba->fc_edtov = FF_DEF_EDTOV; 4216 phba->fc_ratov = FF_DEF_RATOV; 4217 phba->fc_altov = FF_DEF_ALTOV; 4218 phba->fc_arbtov = FF_DEF_ARBTOV; 4219 4220 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 4221 if (!vport) 4222 return -ENODEV; 4223 4224 shost = lpfc_shost_from_vport(vport); 4225 phba->pport = vport; 4226 lpfc_debugfs_initialize(vport); 4227 /* Put reference to SCSI host to driver's device private data */ 4228 pci_set_drvdata(phba->pcidev, shost); 4229 4230 return 0; 4231 } 4232 4233 /** 4234 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 4235 * @phba: pointer to lpfc hba data structure. 4236 * 4237 * This routine is invoked to destroy HBA physical port and the associated 4238 * SCSI host. 4239 **/ 4240 static void 4241 lpfc_destroy_shost(struct lpfc_hba *phba) 4242 { 4243 struct lpfc_vport *vport = phba->pport; 4244 4245 /* Destroy physical port that associated with the SCSI host */ 4246 destroy_port(vport); 4247 4248 return; 4249 } 4250 4251 /** 4252 * lpfc_setup_bg - Setup Block guard structures and debug areas. 4253 * @phba: pointer to lpfc hba data structure. 4254 * @shost: the shost to be used to detect Block guard settings. 4255 * 4256 * This routine sets up the local Block guard protocol settings for @shost. 4257 * This routine also allocates memory for debugging bg buffers. 4258 **/ 4259 static void 4260 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 4261 { 4262 int pagecnt = 10; 4263 if (lpfc_prot_mask && lpfc_prot_guard) { 4264 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4265 "1478 Registering BlockGuard with the " 4266 "SCSI layer\n"); 4267 scsi_host_set_prot(shost, lpfc_prot_mask); 4268 scsi_host_set_guard(shost, lpfc_prot_guard); 4269 } 4270 if (!_dump_buf_data) { 4271 while (pagecnt) { 4272 spin_lock_init(&_dump_buf_lock); 4273 _dump_buf_data = 4274 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4275 if (_dump_buf_data) { 4276 printk(KERN_ERR "BLKGRD allocated %d pages for " 4277 "_dump_buf_data at 0x%p\n", 4278 (1 << pagecnt), _dump_buf_data); 4279 _dump_buf_data_order = pagecnt; 4280 memset(_dump_buf_data, 0, 4281 ((1 << PAGE_SHIFT) << pagecnt)); 4282 break; 4283 } else 4284 --pagecnt; 4285 } 4286 if (!_dump_buf_data_order) 4287 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4288 "memory for hexdump\n"); 4289 } else 4290 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p" 4291 "\n", _dump_buf_data); 4292 if (!_dump_buf_dif) { 4293 while (pagecnt) { 4294 _dump_buf_dif = 4295 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 4296 if (_dump_buf_dif) { 4297 printk(KERN_ERR "BLKGRD allocated %d pages for " 4298 "_dump_buf_dif at 0x%p\n", 4299 (1 << pagecnt), _dump_buf_dif); 4300 _dump_buf_dif_order = pagecnt; 4301 memset(_dump_buf_dif, 0, 4302 ((1 << PAGE_SHIFT) << pagecnt)); 4303 break; 4304 } else 4305 --pagecnt; 4306 } 4307 if (!_dump_buf_dif_order) 4308 printk(KERN_ERR "BLKGRD ERROR unable to allocate " 4309 "memory for hexdump\n"); 4310 } else 4311 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n", 4312 _dump_buf_dif); 4313 } 4314 4315 /** 4316 * lpfc_post_init_setup - Perform necessary device post initialization setup. 4317 * @phba: pointer to lpfc hba data structure. 4318 * 4319 * This routine is invoked to perform all the necessary post initialization 4320 * setup for the device. 4321 **/ 4322 static void 4323 lpfc_post_init_setup(struct lpfc_hba *phba) 4324 { 4325 struct Scsi_Host *shost; 4326 struct lpfc_adapter_event_header adapter_event; 4327 4328 /* Get the default values for Model Name and Description */ 4329 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 4330 4331 /* 4332 * hba setup may have changed the hba_queue_depth so we need to 4333 * adjust the value of can_queue. 4334 */ 4335 shost = pci_get_drvdata(phba->pcidev); 4336 shost->can_queue = phba->cfg_hba_queue_depth - 10; 4337 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 4338 lpfc_setup_bg(phba, shost); 4339 4340 lpfc_host_attrib_init(shost); 4341 4342 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 4343 spin_lock_irq(shost->host_lock); 4344 lpfc_poll_start_timer(phba); 4345 spin_unlock_irq(shost->host_lock); 4346 } 4347 4348 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4349 "0428 Perform SCSI scan\n"); 4350 /* Send board arrival event to upper layer */ 4351 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 4352 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 4353 fc_host_post_vendor_event(shost, fc_get_event_number(), 4354 sizeof(adapter_event), 4355 (char *) &adapter_event, 4356 LPFC_NL_VENDOR_ID); 4357 return; 4358 } 4359 4360 /** 4361 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 4362 * @phba: pointer to lpfc hba data structure. 4363 * 4364 * This routine is invoked to set up the PCI device memory space for device 4365 * with SLI-3 interface spec. 4366 * 4367 * Return codes 4368 * 0 - sucessful 4369 * other values - error 4370 **/ 4371 static int 4372 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 4373 { 4374 struct pci_dev *pdev; 4375 unsigned long bar0map_len, bar2map_len; 4376 int i, hbq_count; 4377 void *ptr; 4378 int error = -ENODEV; 4379 4380 /* Obtain PCI device reference */ 4381 if (!phba->pcidev) 4382 return error; 4383 else 4384 pdev = phba->pcidev; 4385 4386 /* Set the device DMA mask size */ 4387 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 4388 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 4389 return error; 4390 4391 /* Get the bus address of Bar0 and Bar2 and the number of bytes 4392 * required by each mapping. 4393 */ 4394 phba->pci_bar0_map = pci_resource_start(pdev, 0); 4395 bar0map_len = pci_resource_len(pdev, 0); 4396 4397 phba->pci_bar2_map = pci_resource_start(pdev, 2); 4398 bar2map_len = pci_resource_len(pdev, 2); 4399 4400 /* Map HBA SLIM to a kernel virtual address. */ 4401 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 4402 if (!phba->slim_memmap_p) { 4403 dev_printk(KERN_ERR, &pdev->dev, 4404 "ioremap failed for SLIM memory.\n"); 4405 goto out; 4406 } 4407 4408 /* Map HBA Control Registers to a kernel virtual address. */ 4409 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 4410 if (!phba->ctrl_regs_memmap_p) { 4411 dev_printk(KERN_ERR, &pdev->dev, 4412 "ioremap failed for HBA control registers.\n"); 4413 goto out_iounmap_slim; 4414 } 4415 4416 /* Allocate memory for SLI-2 structures */ 4417 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 4418 SLI2_SLIM_SIZE, 4419 &phba->slim2p.phys, 4420 GFP_KERNEL); 4421 if (!phba->slim2p.virt) 4422 goto out_iounmap; 4423 4424 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 4425 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 4426 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 4427 phba->IOCBs = (phba->slim2p.virt + 4428 offsetof(struct lpfc_sli2_slim, IOCBs)); 4429 4430 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 4431 lpfc_sli_hbq_size(), 4432 &phba->hbqslimp.phys, 4433 GFP_KERNEL); 4434 if (!phba->hbqslimp.virt) 4435 goto out_free_slim; 4436 4437 hbq_count = lpfc_sli_hbq_count(); 4438 ptr = phba->hbqslimp.virt; 4439 for (i = 0; i < hbq_count; ++i) { 4440 phba->hbqs[i].hbq_virt = ptr; 4441 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4442 ptr += (lpfc_hbq_defs[i]->entry_count * 4443 sizeof(struct lpfc_hbq_entry)); 4444 } 4445 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 4446 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 4447 4448 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 4449 4450 INIT_LIST_HEAD(&phba->rb_pend_list); 4451 4452 phba->MBslimaddr = phba->slim_memmap_p; 4453 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 4454 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 4455 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 4456 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 4457 4458 return 0; 4459 4460 out_free_slim: 4461 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4462 phba->slim2p.virt, phba->slim2p.phys); 4463 out_iounmap: 4464 iounmap(phba->ctrl_regs_memmap_p); 4465 out_iounmap_slim: 4466 iounmap(phba->slim_memmap_p); 4467 out: 4468 return error; 4469 } 4470 4471 /** 4472 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 4473 * @phba: pointer to lpfc hba data structure. 4474 * 4475 * This routine is invoked to unset the PCI device memory space for device 4476 * with SLI-3 interface spec. 4477 **/ 4478 static void 4479 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 4480 { 4481 struct pci_dev *pdev; 4482 4483 /* Obtain PCI device reference */ 4484 if (!phba->pcidev) 4485 return; 4486 else 4487 pdev = phba->pcidev; 4488 4489 /* Free coherent DMA memory allocated */ 4490 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 4491 phba->hbqslimp.virt, phba->hbqslimp.phys); 4492 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 4493 phba->slim2p.virt, phba->slim2p.phys); 4494 4495 /* I/O memory unmap */ 4496 iounmap(phba->ctrl_regs_memmap_p); 4497 iounmap(phba->slim_memmap_p); 4498 4499 return; 4500 } 4501 4502 /** 4503 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 4504 * @phba: pointer to lpfc hba data structure. 4505 * 4506 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 4507 * done and check status. 4508 * 4509 * Return 0 if successful, otherwise -ENODEV. 4510 **/ 4511 int 4512 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 4513 { 4514 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad; 4515 uint32_t onlnreg0, onlnreg1; 4516 int i, port_error = -ENODEV; 4517 4518 if (!phba->sli4_hba.STAregaddr) 4519 return -ENODEV; 4520 4521 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 4522 for (i = 0; i < 3000; i++) { 4523 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr); 4524 /* Encounter fatal POST error, break out */ 4525 if (bf_get(lpfc_hst_state_perr, &sta_reg)) { 4526 port_error = -ENODEV; 4527 break; 4528 } 4529 if (LPFC_POST_STAGE_ARMFW_READY == 4530 bf_get(lpfc_hst_state_port_status, &sta_reg)) { 4531 port_error = 0; 4532 break; 4533 } 4534 msleep(10); 4535 } 4536 4537 if (port_error) 4538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4539 "1408 Failure HBA POST Status: sta_reg=0x%x, " 4540 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, " 4541 "dl=x%x, pstatus=x%x\n", sta_reg.word0, 4542 bf_get(lpfc_hst_state_perr, &sta_reg), 4543 bf_get(lpfc_hst_state_sfi, &sta_reg), 4544 bf_get(lpfc_hst_state_nip, &sta_reg), 4545 bf_get(lpfc_hst_state_ipc, &sta_reg), 4546 bf_get(lpfc_hst_state_xrom, &sta_reg), 4547 bf_get(lpfc_hst_state_dl, &sta_reg), 4548 bf_get(lpfc_hst_state_port_status, &sta_reg)); 4549 4550 /* Log device information */ 4551 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr); 4552 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4553 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, " 4554 "FeatureL1=0x%x, FeatureL2=0x%x\n", 4555 bf_get(lpfc_scratchpad_chiptype, &scratchpad), 4556 bf_get(lpfc_scratchpad_slirev, &scratchpad), 4557 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad), 4558 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad)); 4559 4560 /* With uncoverable error, log the error message and return error */ 4561 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); 4562 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); 4563 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { 4564 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr); 4565 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr); 4566 if (uerrlo_reg.word0 || uerrhi_reg.word0) { 4567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4568 "1422 HBA Unrecoverable error: " 4569 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " 4570 "online0_reg=0x%x, online1_reg=0x%x\n", 4571 uerrlo_reg.word0, uerrhi_reg.word0, 4572 onlnreg0, onlnreg1); 4573 } 4574 return -ENODEV; 4575 } 4576 4577 return port_error; 4578 } 4579 4580 /** 4581 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 4582 * @phba: pointer to lpfc hba data structure. 4583 * 4584 * This routine is invoked to set up SLI4 BAR0 PCI config space register 4585 * memory map. 4586 **/ 4587 static void 4588 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba) 4589 { 4590 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p + 4591 LPFC_UERR_STATUS_LO; 4592 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p + 4593 LPFC_UERR_STATUS_HI; 4594 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p + 4595 LPFC_ONLINE0; 4596 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p + 4597 LPFC_ONLINE1; 4598 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p + 4599 LPFC_SCRATCHPAD; 4600 } 4601 4602 /** 4603 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 4604 * @phba: pointer to lpfc hba data structure. 4605 * 4606 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 4607 * memory map. 4608 **/ 4609 static void 4610 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 4611 { 4612 4613 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4614 LPFC_HST_STATE; 4615 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4616 LPFC_HST_ISR0; 4617 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4618 LPFC_HST_IMR0; 4619 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 4620 LPFC_HST_ISCR0; 4621 return; 4622 } 4623 4624 /** 4625 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 4626 * @phba: pointer to lpfc hba data structure. 4627 * @vf: virtual function number 4628 * 4629 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 4630 * based on the given viftual function number, @vf. 4631 * 4632 * Return 0 if successful, otherwise -ENODEV. 4633 **/ 4634 static int 4635 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 4636 { 4637 if (vf > LPFC_VIR_FUNC_MAX) 4638 return -ENODEV; 4639 4640 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4641 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 4642 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4643 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 4644 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4645 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 4646 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4647 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 4648 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 4649 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 4650 return 0; 4651 } 4652 4653 /** 4654 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 4655 * @phba: pointer to lpfc hba data structure. 4656 * 4657 * This routine is invoked to create the bootstrap mailbox 4658 * region consistent with the SLI-4 interface spec. This 4659 * routine allocates all memory necessary to communicate 4660 * mailbox commands to the port and sets up all alignment 4661 * needs. No locks are expected to be held when calling 4662 * this routine. 4663 * 4664 * Return codes 4665 * 0 - sucessful 4666 * ENOMEM - could not allocated memory. 4667 **/ 4668 static int 4669 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 4670 { 4671 uint32_t bmbx_size; 4672 struct lpfc_dmabuf *dmabuf; 4673 struct dma_address *dma_address; 4674 uint32_t pa_addr; 4675 uint64_t phys_addr; 4676 4677 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4678 if (!dmabuf) 4679 return -ENOMEM; 4680 4681 /* 4682 * The bootstrap mailbox region is comprised of 2 parts 4683 * plus an alignment restriction of 16 bytes. 4684 */ 4685 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 4686 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 4687 bmbx_size, 4688 &dmabuf->phys, 4689 GFP_KERNEL); 4690 if (!dmabuf->virt) { 4691 kfree(dmabuf); 4692 return -ENOMEM; 4693 } 4694 memset(dmabuf->virt, 0, bmbx_size); 4695 4696 /* 4697 * Initialize the bootstrap mailbox pointers now so that the register 4698 * operations are simple later. The mailbox dma address is required 4699 * to be 16-byte aligned. Also align the virtual memory as each 4700 * maibox is copied into the bmbx mailbox region before issuing the 4701 * command to the port. 4702 */ 4703 phba->sli4_hba.bmbx.dmabuf = dmabuf; 4704 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 4705 4706 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 4707 LPFC_ALIGN_16_BYTE); 4708 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 4709 LPFC_ALIGN_16_BYTE); 4710 4711 /* 4712 * Set the high and low physical addresses now. The SLI4 alignment 4713 * requirement is 16 bytes and the mailbox is posted to the port 4714 * as two 30-bit addresses. The other data is a bit marking whether 4715 * the 30-bit address is the high or low address. 4716 * Upcast bmbx aphys to 64bits so shift instruction compiles 4717 * clean on 32 bit machines. 4718 */ 4719 dma_address = &phba->sli4_hba.bmbx.dma_address; 4720 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 4721 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 4722 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 4723 LPFC_BMBX_BIT1_ADDR_HI); 4724 4725 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 4726 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 4727 LPFC_BMBX_BIT1_ADDR_LO); 4728 return 0; 4729 } 4730 4731 /** 4732 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 4733 * @phba: pointer to lpfc hba data structure. 4734 * 4735 * This routine is invoked to teardown the bootstrap mailbox 4736 * region and release all host resources. This routine requires 4737 * the caller to ensure all mailbox commands recovered, no 4738 * additional mailbox comands are sent, and interrupts are disabled 4739 * before calling this routine. 4740 * 4741 **/ 4742 static void 4743 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 4744 { 4745 dma_free_coherent(&phba->pcidev->dev, 4746 phba->sli4_hba.bmbx.bmbx_size, 4747 phba->sli4_hba.bmbx.dmabuf->virt, 4748 phba->sli4_hba.bmbx.dmabuf->phys); 4749 4750 kfree(phba->sli4_hba.bmbx.dmabuf); 4751 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 4752 } 4753 4754 /** 4755 * lpfc_sli4_read_config - Get the config parameters. 4756 * @phba: pointer to lpfc hba data structure. 4757 * 4758 * This routine is invoked to read the configuration parameters from the HBA. 4759 * The configuration parameters are used to set the base and maximum values 4760 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 4761 * allocation for the port. 4762 * 4763 * Return codes 4764 * 0 - sucessful 4765 * ENOMEM - No availble memory 4766 * EIO - The mailbox failed to complete successfully. 4767 **/ 4768 static int 4769 lpfc_sli4_read_config(struct lpfc_hba *phba) 4770 { 4771 LPFC_MBOXQ_t *pmb; 4772 struct lpfc_mbx_read_config *rd_config; 4773 uint32_t rc = 0; 4774 4775 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4776 if (!pmb) { 4777 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4778 "2011 Unable to allocate memory for issuing " 4779 "SLI_CONFIG_SPECIAL mailbox command\n"); 4780 return -ENOMEM; 4781 } 4782 4783 lpfc_read_config(phba, pmb); 4784 4785 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 4786 if (rc != MBX_SUCCESS) { 4787 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4788 "2012 Mailbox failed , mbxCmd x%x " 4789 "READ_CONFIG, mbxStatus x%x\n", 4790 bf_get(lpfc_mqe_command, &pmb->u.mqe), 4791 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 4792 rc = -EIO; 4793 } else { 4794 rd_config = &pmb->u.mqe.un.rd_config; 4795 phba->sli4_hba.max_cfg_param.max_xri = 4796 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 4797 phba->sli4_hba.max_cfg_param.xri_base = 4798 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 4799 phba->sli4_hba.max_cfg_param.max_vpi = 4800 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 4801 phba->sli4_hba.max_cfg_param.vpi_base = 4802 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 4803 phba->sli4_hba.max_cfg_param.max_rpi = 4804 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 4805 phba->sli4_hba.max_cfg_param.rpi_base = 4806 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 4807 phba->sli4_hba.max_cfg_param.max_vfi = 4808 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 4809 phba->sli4_hba.max_cfg_param.vfi_base = 4810 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 4811 phba->sli4_hba.max_cfg_param.max_fcfi = 4812 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 4813 phba->sli4_hba.max_cfg_param.fcfi_base = 4814 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config); 4815 phba->sli4_hba.max_cfg_param.max_eq = 4816 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 4817 phba->sli4_hba.max_cfg_param.max_rq = 4818 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 4819 phba->sli4_hba.max_cfg_param.max_wq = 4820 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 4821 phba->sli4_hba.max_cfg_param.max_cq = 4822 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 4823 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 4824 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 4825 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 4826 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 4827 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 4828 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi; 4829 phba->max_vports = phba->max_vpi; 4830 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4831 "2003 cfg params XRI(B:%d M:%d), " 4832 "VPI(B:%d M:%d) " 4833 "VFI(B:%d M:%d) " 4834 "RPI(B:%d M:%d) " 4835 "FCFI(B:%d M:%d)\n", 4836 phba->sli4_hba.max_cfg_param.xri_base, 4837 phba->sli4_hba.max_cfg_param.max_xri, 4838 phba->sli4_hba.max_cfg_param.vpi_base, 4839 phba->sli4_hba.max_cfg_param.max_vpi, 4840 phba->sli4_hba.max_cfg_param.vfi_base, 4841 phba->sli4_hba.max_cfg_param.max_vfi, 4842 phba->sli4_hba.max_cfg_param.rpi_base, 4843 phba->sli4_hba.max_cfg_param.max_rpi, 4844 phba->sli4_hba.max_cfg_param.fcfi_base, 4845 phba->sli4_hba.max_cfg_param.max_fcfi); 4846 } 4847 mempool_free(pmb, phba->mbox_mem_pool); 4848 4849 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 4850 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri)) 4851 phba->cfg_hba_queue_depth = 4852 phba->sli4_hba.max_cfg_param.max_xri; 4853 return rc; 4854 } 4855 4856 /** 4857 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order. 4858 * @phba: pointer to lpfc hba data structure. 4859 * 4860 * This routine is invoked to setup the host-side endian order to the 4861 * HBA consistent with the SLI-4 interface spec. 4862 * 4863 * Return codes 4864 * 0 - sucessful 4865 * ENOMEM - No availble memory 4866 * EIO - The mailbox failed to complete successfully. 4867 **/ 4868 static int 4869 lpfc_setup_endian_order(struct lpfc_hba *phba) 4870 { 4871 LPFC_MBOXQ_t *mboxq; 4872 uint32_t rc = 0; 4873 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 4874 HOST_ENDIAN_HIGH_WORD1}; 4875 4876 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4877 if (!mboxq) { 4878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4879 "0492 Unable to allocate memory for issuing " 4880 "SLI_CONFIG_SPECIAL mailbox command\n"); 4881 return -ENOMEM; 4882 } 4883 4884 /* 4885 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two 4886 * words to contain special data values and no other data. 4887 */ 4888 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 4889 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 4890 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4891 if (rc != MBX_SUCCESS) { 4892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4893 "0493 SLI_CONFIG_SPECIAL mailbox failed with " 4894 "status x%x\n", 4895 rc); 4896 rc = -EIO; 4897 } 4898 4899 mempool_free(mboxq, phba->mbox_mem_pool); 4900 return rc; 4901 } 4902 4903 /** 4904 * lpfc_sli4_queue_create - Create all the SLI4 queues 4905 * @phba: pointer to lpfc hba data structure. 4906 * 4907 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 4908 * operation. For each SLI4 queue type, the parameters such as queue entry 4909 * count (queue depth) shall be taken from the module parameter. For now, 4910 * we just use some constant number as place holder. 4911 * 4912 * Return codes 4913 * 0 - sucessful 4914 * ENOMEM - No availble memory 4915 * EIO - The mailbox failed to complete successfully. 4916 **/ 4917 static int 4918 lpfc_sli4_queue_create(struct lpfc_hba *phba) 4919 { 4920 struct lpfc_queue *qdesc; 4921 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 4922 int cfg_fcp_wq_count; 4923 int cfg_fcp_eq_count; 4924 4925 /* 4926 * Sanity check for confiugred queue parameters against the run-time 4927 * device parameters 4928 */ 4929 4930 /* Sanity check on FCP fast-path WQ parameters */ 4931 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 4932 if (cfg_fcp_wq_count > 4933 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 4934 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 4935 LPFC_SP_WQN_DEF; 4936 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 4937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4938 "2581 Not enough WQs (%d) from " 4939 "the pci function for supporting " 4940 "FCP WQs (%d)\n", 4941 phba->sli4_hba.max_cfg_param.max_wq, 4942 phba->cfg_fcp_wq_count); 4943 goto out_error; 4944 } 4945 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4946 "2582 Not enough WQs (%d) from the pci " 4947 "function for supporting the requested " 4948 "FCP WQs (%d), the actual FCP WQs can " 4949 "be supported: %d\n", 4950 phba->sli4_hba.max_cfg_param.max_wq, 4951 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 4952 } 4953 /* The actual number of FCP work queues adopted */ 4954 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 4955 4956 /* Sanity check on FCP fast-path EQ parameters */ 4957 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 4958 if (cfg_fcp_eq_count > 4959 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 4960 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 4961 LPFC_SP_EQN_DEF; 4962 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 4963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4964 "2574 Not enough EQs (%d) from the " 4965 "pci function for supporting FCP " 4966 "EQs (%d)\n", 4967 phba->sli4_hba.max_cfg_param.max_eq, 4968 phba->cfg_fcp_eq_count); 4969 goto out_error; 4970 } 4971 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4972 "2575 Not enough EQs (%d) from the pci " 4973 "function for supporting the requested " 4974 "FCP EQs (%d), the actual FCP EQs can " 4975 "be supported: %d\n", 4976 phba->sli4_hba.max_cfg_param.max_eq, 4977 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 4978 } 4979 /* It does not make sense to have more EQs than WQs */ 4980 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 4981 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4982 "2593 The number of FCP EQs (%d) is more " 4983 "than the number of FCP WQs (%d), take " 4984 "the number of FCP EQs same as than of " 4985 "WQs (%d)\n", cfg_fcp_eq_count, 4986 phba->cfg_fcp_wq_count, 4987 phba->cfg_fcp_wq_count); 4988 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 4989 } 4990 /* The actual number of FCP event queues adopted */ 4991 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 4992 /* The overall number of event queues used */ 4993 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 4994 4995 /* 4996 * Create Event Queues (EQs) 4997 */ 4998 4999 /* Get EQ depth from module parameter, fake the default for now */ 5000 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 5001 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 5002 5003 /* Create slow path event queue */ 5004 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5005 phba->sli4_hba.eq_ecount); 5006 if (!qdesc) { 5007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5008 "0496 Failed allocate slow-path EQ\n"); 5009 goto out_error; 5010 } 5011 phba->sli4_hba.sp_eq = qdesc; 5012 5013 /* Create fast-path FCP Event Queue(s) */ 5014 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 5015 phba->cfg_fcp_eq_count), GFP_KERNEL); 5016 if (!phba->sli4_hba.fp_eq) { 5017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5018 "2576 Failed allocate memory for fast-path " 5019 "EQ record array\n"); 5020 goto out_free_sp_eq; 5021 } 5022 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5023 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 5024 phba->sli4_hba.eq_ecount); 5025 if (!qdesc) { 5026 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5027 "0497 Failed allocate fast-path EQ\n"); 5028 goto out_free_fp_eq; 5029 } 5030 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 5031 } 5032 5033 /* 5034 * Create Complete Queues (CQs) 5035 */ 5036 5037 /* Get CQ depth from module parameter, fake the default for now */ 5038 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 5039 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 5040 5041 /* Create slow-path Mailbox Command Complete Queue */ 5042 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5043 phba->sli4_hba.cq_ecount); 5044 if (!qdesc) { 5045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5046 "0500 Failed allocate slow-path mailbox CQ\n"); 5047 goto out_free_fp_eq; 5048 } 5049 phba->sli4_hba.mbx_cq = qdesc; 5050 5051 /* Create slow-path ELS Complete Queue */ 5052 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5053 phba->sli4_hba.cq_ecount); 5054 if (!qdesc) { 5055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5056 "0501 Failed allocate slow-path ELS CQ\n"); 5057 goto out_free_mbx_cq; 5058 } 5059 phba->sli4_hba.els_cq = qdesc; 5060 5061 /* Create slow-path Unsolicited Receive Complete Queue */ 5062 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5063 phba->sli4_hba.cq_ecount); 5064 if (!qdesc) { 5065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5066 "0502 Failed allocate slow-path USOL RX CQ\n"); 5067 goto out_free_els_cq; 5068 } 5069 phba->sli4_hba.rxq_cq = qdesc; 5070 5071 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 5072 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 5073 phba->cfg_fcp_eq_count), GFP_KERNEL); 5074 if (!phba->sli4_hba.fcp_cq) { 5075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5076 "2577 Failed allocate memory for fast-path " 5077 "CQ record array\n"); 5078 goto out_free_rxq_cq; 5079 } 5080 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5081 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 5082 phba->sli4_hba.cq_ecount); 5083 if (!qdesc) { 5084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5085 "0499 Failed allocate fast-path FCP " 5086 "CQ (%d)\n", fcp_cqidx); 5087 goto out_free_fcp_cq; 5088 } 5089 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 5090 } 5091 5092 /* Create Mailbox Command Queue */ 5093 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 5094 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 5095 5096 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 5097 phba->sli4_hba.mq_ecount); 5098 if (!qdesc) { 5099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5100 "0505 Failed allocate slow-path MQ\n"); 5101 goto out_free_fcp_cq; 5102 } 5103 phba->sli4_hba.mbx_wq = qdesc; 5104 5105 /* 5106 * Create all the Work Queues (WQs) 5107 */ 5108 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 5109 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 5110 5111 /* Create slow-path ELS Work Queue */ 5112 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5113 phba->sli4_hba.wq_ecount); 5114 if (!qdesc) { 5115 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5116 "0504 Failed allocate slow-path ELS WQ\n"); 5117 goto out_free_mbx_wq; 5118 } 5119 phba->sli4_hba.els_wq = qdesc; 5120 5121 /* Create fast-path FCP Work Queue(s) */ 5122 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 5123 phba->cfg_fcp_wq_count), GFP_KERNEL); 5124 if (!phba->sli4_hba.fcp_wq) { 5125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5126 "2578 Failed allocate memory for fast-path " 5127 "WQ record array\n"); 5128 goto out_free_els_wq; 5129 } 5130 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5131 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 5132 phba->sli4_hba.wq_ecount); 5133 if (!qdesc) { 5134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5135 "0503 Failed allocate fast-path FCP " 5136 "WQ (%d)\n", fcp_wqidx); 5137 goto out_free_fcp_wq; 5138 } 5139 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 5140 } 5141 5142 /* 5143 * Create Receive Queue (RQ) 5144 */ 5145 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 5146 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 5147 5148 /* Create Receive Queue for header */ 5149 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5150 phba->sli4_hba.rq_ecount); 5151 if (!qdesc) { 5152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5153 "0506 Failed allocate receive HRQ\n"); 5154 goto out_free_fcp_wq; 5155 } 5156 phba->sli4_hba.hdr_rq = qdesc; 5157 5158 /* Create Receive Queue for data */ 5159 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 5160 phba->sli4_hba.rq_ecount); 5161 if (!qdesc) { 5162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5163 "0507 Failed allocate receive DRQ\n"); 5164 goto out_free_hdr_rq; 5165 } 5166 phba->sli4_hba.dat_rq = qdesc; 5167 5168 return 0; 5169 5170 out_free_hdr_rq: 5171 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5172 phba->sli4_hba.hdr_rq = NULL; 5173 out_free_fcp_wq: 5174 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 5175 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 5176 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 5177 } 5178 kfree(phba->sli4_hba.fcp_wq); 5179 out_free_els_wq: 5180 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5181 phba->sli4_hba.els_wq = NULL; 5182 out_free_mbx_wq: 5183 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5184 phba->sli4_hba.mbx_wq = NULL; 5185 out_free_fcp_cq: 5186 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 5187 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 5188 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 5189 } 5190 kfree(phba->sli4_hba.fcp_cq); 5191 out_free_rxq_cq: 5192 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5193 phba->sli4_hba.rxq_cq = NULL; 5194 out_free_els_cq: 5195 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5196 phba->sli4_hba.els_cq = NULL; 5197 out_free_mbx_cq: 5198 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5199 phba->sli4_hba.mbx_cq = NULL; 5200 out_free_fp_eq: 5201 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 5202 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 5203 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 5204 } 5205 kfree(phba->sli4_hba.fp_eq); 5206 out_free_sp_eq: 5207 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5208 phba->sli4_hba.sp_eq = NULL; 5209 out_error: 5210 return -ENOMEM; 5211 } 5212 5213 /** 5214 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 5215 * @phba: pointer to lpfc hba data structure. 5216 * 5217 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 5218 * operation. 5219 * 5220 * Return codes 5221 * 0 - sucessful 5222 * ENOMEM - No availble memory 5223 * EIO - The mailbox failed to complete successfully. 5224 **/ 5225 static void 5226 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 5227 { 5228 int fcp_qidx; 5229 5230 /* Release mailbox command work queue */ 5231 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 5232 phba->sli4_hba.mbx_wq = NULL; 5233 5234 /* Release ELS work queue */ 5235 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 5236 phba->sli4_hba.els_wq = NULL; 5237 5238 /* Release FCP work queue */ 5239 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5240 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 5241 kfree(phba->sli4_hba.fcp_wq); 5242 phba->sli4_hba.fcp_wq = NULL; 5243 5244 /* Release unsolicited receive queue */ 5245 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 5246 phba->sli4_hba.hdr_rq = NULL; 5247 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 5248 phba->sli4_hba.dat_rq = NULL; 5249 5250 /* Release unsolicited receive complete queue */ 5251 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq); 5252 phba->sli4_hba.rxq_cq = NULL; 5253 5254 /* Release ELS complete queue */ 5255 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 5256 phba->sli4_hba.els_cq = NULL; 5257 5258 /* Release mailbox command complete queue */ 5259 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 5260 phba->sli4_hba.mbx_cq = NULL; 5261 5262 /* Release FCP response complete queue */ 5263 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5264 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 5265 kfree(phba->sli4_hba.fcp_cq); 5266 phba->sli4_hba.fcp_cq = NULL; 5267 5268 /* Release fast-path event queue */ 5269 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5270 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 5271 kfree(phba->sli4_hba.fp_eq); 5272 phba->sli4_hba.fp_eq = NULL; 5273 5274 /* Release slow-path event queue */ 5275 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 5276 phba->sli4_hba.sp_eq = NULL; 5277 5278 return; 5279 } 5280 5281 /** 5282 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 5283 * @phba: pointer to lpfc hba data structure. 5284 * 5285 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 5286 * operation. 5287 * 5288 * Return codes 5289 * 0 - sucessful 5290 * ENOMEM - No availble memory 5291 * EIO - The mailbox failed to complete successfully. 5292 **/ 5293 int 5294 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 5295 { 5296 int rc = -ENOMEM; 5297 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 5298 int fcp_cq_index = 0; 5299 5300 /* 5301 * Set up Event Queues (EQs) 5302 */ 5303 5304 /* Set up slow-path event queue */ 5305 if (!phba->sli4_hba.sp_eq) { 5306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5307 "0520 Slow-path EQ not allocated\n"); 5308 goto out_error; 5309 } 5310 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 5311 LPFC_SP_DEF_IMAX); 5312 if (rc) { 5313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5314 "0521 Failed setup of slow-path EQ: " 5315 "rc = 0x%x\n", rc); 5316 goto out_error; 5317 } 5318 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5319 "2583 Slow-path EQ setup: queue-id=%d\n", 5320 phba->sli4_hba.sp_eq->queue_id); 5321 5322 /* Set up fast-path event queue */ 5323 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 5324 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 5325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5326 "0522 Fast-path EQ (%d) not " 5327 "allocated\n", fcp_eqidx); 5328 goto out_destroy_fp_eq; 5329 } 5330 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 5331 phba->cfg_fcp_imax); 5332 if (rc) { 5333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5334 "0523 Failed setup of fast-path EQ " 5335 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 5336 goto out_destroy_fp_eq; 5337 } 5338 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5339 "2584 Fast-path EQ setup: " 5340 "queue[%d]-id=%d\n", fcp_eqidx, 5341 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 5342 } 5343 5344 /* 5345 * Set up Complete Queues (CQs) 5346 */ 5347 5348 /* Set up slow-path MBOX Complete Queue as the first CQ */ 5349 if (!phba->sli4_hba.mbx_cq) { 5350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5351 "0528 Mailbox CQ not allocated\n"); 5352 goto out_destroy_fp_eq; 5353 } 5354 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 5355 LPFC_MCQ, LPFC_MBOX); 5356 if (rc) { 5357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5358 "0529 Failed setup of slow-path mailbox CQ: " 5359 "rc = 0x%x\n", rc); 5360 goto out_destroy_fp_eq; 5361 } 5362 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5363 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 5364 phba->sli4_hba.mbx_cq->queue_id, 5365 phba->sli4_hba.sp_eq->queue_id); 5366 5367 /* Set up slow-path ELS Complete Queue */ 5368 if (!phba->sli4_hba.els_cq) { 5369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5370 "0530 ELS CQ not allocated\n"); 5371 goto out_destroy_mbx_cq; 5372 } 5373 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 5374 LPFC_WCQ, LPFC_ELS); 5375 if (rc) { 5376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5377 "0531 Failed setup of slow-path ELS CQ: " 5378 "rc = 0x%x\n", rc); 5379 goto out_destroy_mbx_cq; 5380 } 5381 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5382 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 5383 phba->sli4_hba.els_cq->queue_id, 5384 phba->sli4_hba.sp_eq->queue_id); 5385 5386 /* Set up slow-path Unsolicited Receive Complete Queue */ 5387 if (!phba->sli4_hba.rxq_cq) { 5388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5389 "0532 USOL RX CQ not allocated\n"); 5390 goto out_destroy_els_cq; 5391 } 5392 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq, 5393 LPFC_RCQ, LPFC_USOL); 5394 if (rc) { 5395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5396 "0533 Failed setup of slow-path USOL RX CQ: " 5397 "rc = 0x%x\n", rc); 5398 goto out_destroy_els_cq; 5399 } 5400 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5401 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n", 5402 phba->sli4_hba.rxq_cq->queue_id, 5403 phba->sli4_hba.sp_eq->queue_id); 5404 5405 /* Set up fast-path FCP Response Complete Queue */ 5406 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 5407 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 5408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5409 "0526 Fast-path FCP CQ (%d) not " 5410 "allocated\n", fcp_cqidx); 5411 goto out_destroy_fcp_cq; 5412 } 5413 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 5414 phba->sli4_hba.fp_eq[fcp_cqidx], 5415 LPFC_WCQ, LPFC_FCP); 5416 if (rc) { 5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5418 "0527 Failed setup of fast-path FCP " 5419 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 5420 goto out_destroy_fcp_cq; 5421 } 5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5423 "2588 FCP CQ setup: cq[%d]-id=%d, " 5424 "parent eq[%d]-id=%d\n", 5425 fcp_cqidx, 5426 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 5427 fcp_cqidx, 5428 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id); 5429 } 5430 5431 /* 5432 * Set up all the Work Queues (WQs) 5433 */ 5434 5435 /* Set up Mailbox Command Queue */ 5436 if (!phba->sli4_hba.mbx_wq) { 5437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5438 "0538 Slow-path MQ not allocated\n"); 5439 goto out_destroy_fcp_cq; 5440 } 5441 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 5442 phba->sli4_hba.mbx_cq, LPFC_MBOX); 5443 if (rc) { 5444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5445 "0539 Failed setup of slow-path MQ: " 5446 "rc = 0x%x\n", rc); 5447 goto out_destroy_fcp_cq; 5448 } 5449 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5450 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 5451 phba->sli4_hba.mbx_wq->queue_id, 5452 phba->sli4_hba.mbx_cq->queue_id); 5453 5454 /* Set up slow-path ELS Work Queue */ 5455 if (!phba->sli4_hba.els_wq) { 5456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5457 "0536 Slow-path ELS WQ not allocated\n"); 5458 goto out_destroy_mbx_wq; 5459 } 5460 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 5461 phba->sli4_hba.els_cq, LPFC_ELS); 5462 if (rc) { 5463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5464 "0537 Failed setup of slow-path ELS WQ: " 5465 "rc = 0x%x\n", rc); 5466 goto out_destroy_mbx_wq; 5467 } 5468 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5469 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 5470 phba->sli4_hba.els_wq->queue_id, 5471 phba->sli4_hba.els_cq->queue_id); 5472 5473 /* Set up fast-path FCP Work Queue */ 5474 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 5475 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 5476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5477 "0534 Fast-path FCP WQ (%d) not " 5478 "allocated\n", fcp_wqidx); 5479 goto out_destroy_fcp_wq; 5480 } 5481 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 5482 phba->sli4_hba.fcp_cq[fcp_cq_index], 5483 LPFC_FCP); 5484 if (rc) { 5485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5486 "0535 Failed setup of fast-path FCP " 5487 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 5488 goto out_destroy_fcp_wq; 5489 } 5490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5491 "2591 FCP WQ setup: wq[%d]-id=%d, " 5492 "parent cq[%d]-id=%d\n", 5493 fcp_wqidx, 5494 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 5495 fcp_cq_index, 5496 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 5497 /* Round robin FCP Work Queue's Completion Queue assignment */ 5498 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count); 5499 } 5500 5501 /* 5502 * Create Receive Queue (RQ) 5503 */ 5504 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 5505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5506 "0540 Receive Queue not allocated\n"); 5507 goto out_destroy_fcp_wq; 5508 } 5509 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 5510 phba->sli4_hba.rxq_cq, LPFC_USOL); 5511 if (rc) { 5512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5513 "0541 Failed setup of Receive Queue: " 5514 "rc = 0x%x\n", rc); 5515 goto out_destroy_fcp_wq; 5516 } 5517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5518 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 5519 "parent cq-id=%d\n", 5520 phba->sli4_hba.hdr_rq->queue_id, 5521 phba->sli4_hba.dat_rq->queue_id, 5522 phba->sli4_hba.rxq_cq->queue_id); 5523 return 0; 5524 5525 out_destroy_fcp_wq: 5526 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 5527 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 5528 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5529 out_destroy_mbx_wq: 5530 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5531 out_destroy_fcp_cq: 5532 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 5533 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 5534 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5535 out_destroy_els_cq: 5536 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5537 out_destroy_mbx_cq: 5538 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5539 out_destroy_fp_eq: 5540 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 5541 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 5542 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5543 out_error: 5544 return rc; 5545 } 5546 5547 /** 5548 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 5549 * @phba: pointer to lpfc hba data structure. 5550 * 5551 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 5552 * operation. 5553 * 5554 * Return codes 5555 * 0 - sucessful 5556 * ENOMEM - No availble memory 5557 * EIO - The mailbox failed to complete successfully. 5558 **/ 5559 void 5560 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 5561 { 5562 int fcp_qidx; 5563 5564 /* Unset mailbox command work queue */ 5565 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 5566 /* Unset ELS work queue */ 5567 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 5568 /* Unset unsolicited receive queue */ 5569 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 5570 /* Unset FCP work queue */ 5571 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 5572 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 5573 /* Unset mailbox command complete queue */ 5574 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 5575 /* Unset ELS complete queue */ 5576 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 5577 /* Unset unsolicited receive complete queue */ 5578 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq); 5579 /* Unset FCP response complete queue */ 5580 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5581 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 5582 /* Unset fast-path event queue */ 5583 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 5584 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 5585 /* Unset slow-path event queue */ 5586 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 5587 } 5588 5589 /** 5590 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 5591 * @phba: pointer to lpfc hba data structure. 5592 * 5593 * This routine is invoked to allocate and set up a pool of completion queue 5594 * events. The body of the completion queue event is a completion queue entry 5595 * CQE. For now, this pool is used for the interrupt service routine to queue 5596 * the following HBA completion queue events for the worker thread to process: 5597 * - Mailbox asynchronous events 5598 * - Receive queue completion unsolicited events 5599 * Later, this can be used for all the slow-path events. 5600 * 5601 * Return codes 5602 * 0 - sucessful 5603 * -ENOMEM - No availble memory 5604 **/ 5605 static int 5606 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 5607 { 5608 struct lpfc_cq_event *cq_event; 5609 int i; 5610 5611 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 5612 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 5613 if (!cq_event) 5614 goto out_pool_create_fail; 5615 list_add_tail(&cq_event->list, 5616 &phba->sli4_hba.sp_cqe_event_pool); 5617 } 5618 return 0; 5619 5620 out_pool_create_fail: 5621 lpfc_sli4_cq_event_pool_destroy(phba); 5622 return -ENOMEM; 5623 } 5624 5625 /** 5626 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 5627 * @phba: pointer to lpfc hba data structure. 5628 * 5629 * This routine is invoked to free the pool of completion queue events at 5630 * driver unload time. Note that, it is the responsibility of the driver 5631 * cleanup routine to free all the outstanding completion-queue events 5632 * allocated from this pool back into the pool before invoking this routine 5633 * to destroy the pool. 5634 **/ 5635 static void 5636 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 5637 { 5638 struct lpfc_cq_event *cq_event, *next_cq_event; 5639 5640 list_for_each_entry_safe(cq_event, next_cq_event, 5641 &phba->sli4_hba.sp_cqe_event_pool, list) { 5642 list_del(&cq_event->list); 5643 kfree(cq_event); 5644 } 5645 } 5646 5647 /** 5648 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5649 * @phba: pointer to lpfc hba data structure. 5650 * 5651 * This routine is the lock free version of the API invoked to allocate a 5652 * completion-queue event from the free pool. 5653 * 5654 * Return: Pointer to the newly allocated completion-queue event if successful 5655 * NULL otherwise. 5656 **/ 5657 struct lpfc_cq_event * 5658 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5659 { 5660 struct lpfc_cq_event *cq_event = NULL; 5661 5662 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 5663 struct lpfc_cq_event, list); 5664 return cq_event; 5665 } 5666 5667 /** 5668 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 5669 * @phba: pointer to lpfc hba data structure. 5670 * 5671 * This routine is the lock version of the API invoked to allocate a 5672 * completion-queue event from the free pool. 5673 * 5674 * Return: Pointer to the newly allocated completion-queue event if successful 5675 * NULL otherwise. 5676 **/ 5677 struct lpfc_cq_event * 5678 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 5679 { 5680 struct lpfc_cq_event *cq_event; 5681 unsigned long iflags; 5682 5683 spin_lock_irqsave(&phba->hbalock, iflags); 5684 cq_event = __lpfc_sli4_cq_event_alloc(phba); 5685 spin_unlock_irqrestore(&phba->hbalock, iflags); 5686 return cq_event; 5687 } 5688 5689 /** 5690 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5691 * @phba: pointer to lpfc hba data structure. 5692 * @cq_event: pointer to the completion queue event to be freed. 5693 * 5694 * This routine is the lock free version of the API invoked to release a 5695 * completion-queue event back into the free pool. 5696 **/ 5697 void 5698 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5699 struct lpfc_cq_event *cq_event) 5700 { 5701 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 5702 } 5703 5704 /** 5705 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 5706 * @phba: pointer to lpfc hba data structure. 5707 * @cq_event: pointer to the completion queue event to be freed. 5708 * 5709 * This routine is the lock version of the API invoked to release a 5710 * completion-queue event back into the free pool. 5711 **/ 5712 void 5713 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 5714 struct lpfc_cq_event *cq_event) 5715 { 5716 unsigned long iflags; 5717 spin_lock_irqsave(&phba->hbalock, iflags); 5718 __lpfc_sli4_cq_event_release(phba, cq_event); 5719 spin_unlock_irqrestore(&phba->hbalock, iflags); 5720 } 5721 5722 /** 5723 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 5724 * @phba: pointer to lpfc hba data structure. 5725 * 5726 * This routine is to free all the pending completion-queue events to the 5727 * back into the free pool for device reset. 5728 **/ 5729 static void 5730 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 5731 { 5732 LIST_HEAD(cqelist); 5733 struct lpfc_cq_event *cqe; 5734 unsigned long iflags; 5735 5736 /* Retrieve all the pending WCQEs from pending WCQE lists */ 5737 spin_lock_irqsave(&phba->hbalock, iflags); 5738 /* Pending FCP XRI abort events */ 5739 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 5740 &cqelist); 5741 /* Pending ELS XRI abort events */ 5742 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 5743 &cqelist); 5744 /* Pending asynnc events */ 5745 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 5746 &cqelist); 5747 spin_unlock_irqrestore(&phba->hbalock, iflags); 5748 5749 while (!list_empty(&cqelist)) { 5750 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 5751 lpfc_sli4_cq_event_release(phba, cqe); 5752 } 5753 } 5754 5755 /** 5756 * lpfc_pci_function_reset - Reset pci function. 5757 * @phba: pointer to lpfc hba data structure. 5758 * 5759 * This routine is invoked to request a PCI function reset. It will destroys 5760 * all resources assigned to the PCI function which originates this request. 5761 * 5762 * Return codes 5763 * 0 - sucessful 5764 * ENOMEM - No availble memory 5765 * EIO - The mailbox failed to complete successfully. 5766 **/ 5767 int 5768 lpfc_pci_function_reset(struct lpfc_hba *phba) 5769 { 5770 LPFC_MBOXQ_t *mboxq; 5771 uint32_t rc = 0; 5772 uint32_t shdr_status, shdr_add_status; 5773 union lpfc_sli4_cfg_shdr *shdr; 5774 5775 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5776 if (!mboxq) { 5777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5778 "0494 Unable to allocate memory for issuing " 5779 "SLI_FUNCTION_RESET mailbox command\n"); 5780 return -ENOMEM; 5781 } 5782 5783 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */ 5784 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5785 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 5786 LPFC_SLI4_MBX_EMBED); 5787 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5788 shdr = (union lpfc_sli4_cfg_shdr *) 5789 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5790 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5791 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5792 if (rc != MBX_TIMEOUT) 5793 mempool_free(mboxq, phba->mbox_mem_pool); 5794 if (shdr_status || shdr_add_status || rc) { 5795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5796 "0495 SLI_FUNCTION_RESET mailbox failed with " 5797 "status x%x add_status x%x, mbx status x%x\n", 5798 shdr_status, shdr_add_status, rc); 5799 rc = -ENXIO; 5800 } 5801 return rc; 5802 } 5803 5804 /** 5805 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 5806 * @phba: pointer to lpfc hba data structure. 5807 * @cnt: number of nop mailbox commands to send. 5808 * 5809 * This routine is invoked to send a number @cnt of NOP mailbox command and 5810 * wait for each command to complete. 5811 * 5812 * Return: the number of NOP mailbox command completed. 5813 **/ 5814 static int 5815 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 5816 { 5817 LPFC_MBOXQ_t *mboxq; 5818 int length, cmdsent; 5819 uint32_t mbox_tmo; 5820 uint32_t rc = 0; 5821 uint32_t shdr_status, shdr_add_status; 5822 union lpfc_sli4_cfg_shdr *shdr; 5823 5824 if (cnt == 0) { 5825 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5826 "2518 Requested to send 0 NOP mailbox cmd\n"); 5827 return cnt; 5828 } 5829 5830 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5831 if (!mboxq) { 5832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5833 "2519 Unable to allocate memory for issuing " 5834 "NOP mailbox command\n"); 5835 return 0; 5836 } 5837 5838 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 5839 length = (sizeof(struct lpfc_mbx_nop) - 5840 sizeof(struct lpfc_sli4_cfg_mhdr)); 5841 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 5842 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 5843 5844 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5845 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 5846 if (!phba->sli4_hba.intr_enable) 5847 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5848 else 5849 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 5850 if (rc == MBX_TIMEOUT) 5851 break; 5852 /* Check return status */ 5853 shdr = (union lpfc_sli4_cfg_shdr *) 5854 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 5855 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5856 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 5857 &shdr->response); 5858 if (shdr_status || shdr_add_status || rc) { 5859 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5860 "2520 NOP mailbox command failed " 5861 "status x%x add_status x%x mbx " 5862 "status x%x\n", shdr_status, 5863 shdr_add_status, rc); 5864 break; 5865 } 5866 } 5867 5868 if (rc != MBX_TIMEOUT) 5869 mempool_free(mboxq, phba->mbox_mem_pool); 5870 5871 return cmdsent; 5872 } 5873 5874 /** 5875 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device 5876 * @phba: pointer to lpfc hba data structure. 5877 * @fcfi: fcf index. 5878 * 5879 * This routine is invoked to unregister a FCFI from device. 5880 **/ 5881 void 5882 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi) 5883 { 5884 LPFC_MBOXQ_t *mbox; 5885 uint32_t mbox_tmo; 5886 int rc; 5887 unsigned long flags; 5888 5889 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5890 5891 if (!mbox) 5892 return; 5893 5894 lpfc_unreg_fcfi(mbox, fcfi); 5895 5896 if (!phba->sli4_hba.intr_enable) 5897 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); 5898 else { 5899 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 5900 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); 5901 } 5902 if (rc != MBX_TIMEOUT) 5903 mempool_free(mbox, phba->mbox_mem_pool); 5904 if (rc != MBX_SUCCESS) 5905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5906 "2517 Unregister FCFI command failed " 5907 "status %d, mbxStatus x%x\n", rc, 5908 bf_get(lpfc_mqe_status, &mbox->u.mqe)); 5909 else { 5910 spin_lock_irqsave(&phba->hbalock, flags); 5911 /* Mark the FCFI is no longer registered */ 5912 phba->fcf.fcf_flag &= 5913 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED); 5914 spin_unlock_irqrestore(&phba->hbalock, flags); 5915 } 5916 } 5917 5918 /** 5919 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 5920 * @phba: pointer to lpfc hba data structure. 5921 * 5922 * This routine is invoked to set up the PCI device memory space for device 5923 * with SLI-4 interface spec. 5924 * 5925 * Return codes 5926 * 0 - sucessful 5927 * other values - error 5928 **/ 5929 static int 5930 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 5931 { 5932 struct pci_dev *pdev; 5933 unsigned long bar0map_len, bar1map_len, bar2map_len; 5934 int error = -ENODEV; 5935 5936 /* Obtain PCI device reference */ 5937 if (!phba->pcidev) 5938 return error; 5939 else 5940 pdev = phba->pcidev; 5941 5942 /* Set the device DMA mask size */ 5943 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) 5944 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) 5945 return error; 5946 5947 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the 5948 * number of bytes required by each mapping. They are actually 5949 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device. 5950 */ 5951 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0); 5952 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0); 5953 5954 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1); 5955 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1); 5956 5957 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2); 5958 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2); 5959 5960 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */ 5961 phba->sli4_hba.conf_regs_memmap_p = 5962 ioremap(phba->pci_bar0_map, bar0map_len); 5963 if (!phba->sli4_hba.conf_regs_memmap_p) { 5964 dev_printk(KERN_ERR, &pdev->dev, 5965 "ioremap failed for SLI4 PCI config registers.\n"); 5966 goto out; 5967 } 5968 5969 /* Map SLI4 HBA Control Register base to a kernel virtual address. */ 5970 phba->sli4_hba.ctrl_regs_memmap_p = 5971 ioremap(phba->pci_bar1_map, bar1map_len); 5972 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 5973 dev_printk(KERN_ERR, &pdev->dev, 5974 "ioremap failed for SLI4 HBA control registers.\n"); 5975 goto out_iounmap_conf; 5976 } 5977 5978 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */ 5979 phba->sli4_hba.drbl_regs_memmap_p = 5980 ioremap(phba->pci_bar2_map, bar2map_len); 5981 if (!phba->sli4_hba.drbl_regs_memmap_p) { 5982 dev_printk(KERN_ERR, &pdev->dev, 5983 "ioremap failed for SLI4 HBA doorbell registers.\n"); 5984 goto out_iounmap_ctrl; 5985 } 5986 5987 /* Set up BAR0 PCI config space register memory map */ 5988 lpfc_sli4_bar0_register_memmap(phba); 5989 5990 /* Set up BAR1 register memory map */ 5991 lpfc_sli4_bar1_register_memmap(phba); 5992 5993 /* Set up BAR2 register memory map */ 5994 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 5995 if (error) 5996 goto out_iounmap_all; 5997 5998 return 0; 5999 6000 out_iounmap_all: 6001 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6002 out_iounmap_ctrl: 6003 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6004 out_iounmap_conf: 6005 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6006 out: 6007 return error; 6008 } 6009 6010 /** 6011 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 6012 * @phba: pointer to lpfc hba data structure. 6013 * 6014 * This routine is invoked to unset the PCI device memory space for device 6015 * with SLI-4 interface spec. 6016 **/ 6017 static void 6018 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 6019 { 6020 struct pci_dev *pdev; 6021 6022 /* Obtain PCI device reference */ 6023 if (!phba->pcidev) 6024 return; 6025 else 6026 pdev = phba->pcidev; 6027 6028 /* Free coherent DMA memory allocated */ 6029 6030 /* Unmap I/O memory space */ 6031 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 6032 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 6033 iounmap(phba->sli4_hba.conf_regs_memmap_p); 6034 6035 return; 6036 } 6037 6038 /** 6039 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 6040 * @phba: pointer to lpfc hba data structure. 6041 * 6042 * This routine is invoked to enable the MSI-X interrupt vectors to device 6043 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 6044 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 6045 * invoked, enables either all or nothing, depending on the current 6046 * availability of PCI vector resources. The device driver is responsible 6047 * for calling the individual request_irq() to register each MSI-X vector 6048 * with a interrupt handler, which is done in this function. Note that 6049 * later when device is unloading, the driver should always call free_irq() 6050 * on all MSI-X vectors it has done request_irq() on before calling 6051 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6052 * will be left with MSI-X enabled and leaks its vectors. 6053 * 6054 * Return codes 6055 * 0 - sucessful 6056 * other values - error 6057 **/ 6058 static int 6059 lpfc_sli_enable_msix(struct lpfc_hba *phba) 6060 { 6061 int rc, i; 6062 LPFC_MBOXQ_t *pmb; 6063 6064 /* Set up MSI-X multi-message vectors */ 6065 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6066 phba->msix_entries[i].entry = i; 6067 6068 /* Configure MSI-X capability structure */ 6069 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 6070 ARRAY_SIZE(phba->msix_entries)); 6071 if (rc) { 6072 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6073 "0420 PCI enable MSI-X failed (%d)\n", rc); 6074 goto msi_fail_out; 6075 } 6076 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6077 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6078 "0477 MSI-X entry[%d]: vector=x%x " 6079 "message=%d\n", i, 6080 phba->msix_entries[i].vector, 6081 phba->msix_entries[i].entry); 6082 /* 6083 * Assign MSI-X vectors to interrupt handlers 6084 */ 6085 6086 /* vector-0 is associated to slow-path handler */ 6087 rc = request_irq(phba->msix_entries[0].vector, 6088 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 6089 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6090 if (rc) { 6091 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6092 "0421 MSI-X slow-path request_irq failed " 6093 "(%d)\n", rc); 6094 goto msi_fail_out; 6095 } 6096 6097 /* vector-1 is associated to fast-path handler */ 6098 rc = request_irq(phba->msix_entries[1].vector, 6099 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 6100 LPFC_FP_DRIVER_HANDLER_NAME, phba); 6101 6102 if (rc) { 6103 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6104 "0429 MSI-X fast-path request_irq failed " 6105 "(%d)\n", rc); 6106 goto irq_fail_out; 6107 } 6108 6109 /* 6110 * Configure HBA MSI-X attention conditions to messages 6111 */ 6112 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6113 6114 if (!pmb) { 6115 rc = -ENOMEM; 6116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6117 "0474 Unable to allocate memory for issuing " 6118 "MBOX_CONFIG_MSI command\n"); 6119 goto mem_fail_out; 6120 } 6121 rc = lpfc_config_msi(phba, pmb); 6122 if (rc) 6123 goto mbx_fail_out; 6124 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6125 if (rc != MBX_SUCCESS) { 6126 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6127 "0351 Config MSI mailbox command failed, " 6128 "mbxCmd x%x, mbxStatus x%x\n", 6129 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 6130 goto mbx_fail_out; 6131 } 6132 6133 /* Free memory allocated for mailbox command */ 6134 mempool_free(pmb, phba->mbox_mem_pool); 6135 return rc; 6136 6137 mbx_fail_out: 6138 /* Free memory allocated for mailbox command */ 6139 mempool_free(pmb, phba->mbox_mem_pool); 6140 6141 mem_fail_out: 6142 /* free the irq already requested */ 6143 free_irq(phba->msix_entries[1].vector, phba); 6144 6145 irq_fail_out: 6146 /* free the irq already requested */ 6147 free_irq(phba->msix_entries[0].vector, phba); 6148 6149 msi_fail_out: 6150 /* Unconfigure MSI-X capability structure */ 6151 pci_disable_msix(phba->pcidev); 6152 return rc; 6153 } 6154 6155 /** 6156 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 6157 * @phba: pointer to lpfc hba data structure. 6158 * 6159 * This routine is invoked to release the MSI-X vectors and then disable the 6160 * MSI-X interrupt mode to device with SLI-3 interface spec. 6161 **/ 6162 static void 6163 lpfc_sli_disable_msix(struct lpfc_hba *phba) 6164 { 6165 int i; 6166 6167 /* Free up MSI-X multi-message vectors */ 6168 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6169 free_irq(phba->msix_entries[i].vector, phba); 6170 /* Disable MSI-X */ 6171 pci_disable_msix(phba->pcidev); 6172 6173 return; 6174 } 6175 6176 /** 6177 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 6178 * @phba: pointer to lpfc hba data structure. 6179 * 6180 * This routine is invoked to enable the MSI interrupt mode to device with 6181 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 6182 * enable the MSI vector. The device driver is responsible for calling the 6183 * request_irq() to register MSI vector with a interrupt the handler, which 6184 * is done in this function. 6185 * 6186 * Return codes 6187 * 0 - sucessful 6188 * other values - error 6189 */ 6190 static int 6191 lpfc_sli_enable_msi(struct lpfc_hba *phba) 6192 { 6193 int rc; 6194 6195 rc = pci_enable_msi(phba->pcidev); 6196 if (!rc) 6197 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6198 "0462 PCI enable MSI mode success.\n"); 6199 else { 6200 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6201 "0471 PCI enable MSI mode failed (%d)\n", rc); 6202 return rc; 6203 } 6204 6205 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6206 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6207 if (rc) { 6208 pci_disable_msi(phba->pcidev); 6209 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6210 "0478 MSI request_irq failed (%d)\n", rc); 6211 } 6212 return rc; 6213 } 6214 6215 /** 6216 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 6217 * @phba: pointer to lpfc hba data structure. 6218 * 6219 * This routine is invoked to disable the MSI interrupt mode to device with 6220 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 6221 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6222 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6223 * its vector. 6224 */ 6225 static void 6226 lpfc_sli_disable_msi(struct lpfc_hba *phba) 6227 { 6228 free_irq(phba->pcidev->irq, phba); 6229 pci_disable_msi(phba->pcidev); 6230 return; 6231 } 6232 6233 /** 6234 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 6235 * @phba: pointer to lpfc hba data structure. 6236 * 6237 * This routine is invoked to enable device interrupt and associate driver's 6238 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 6239 * spec. Depends on the interrupt mode configured to the driver, the driver 6240 * will try to fallback from the configured interrupt mode to an interrupt 6241 * mode which is supported by the platform, kernel, and device in the order 6242 * of: 6243 * MSI-X -> MSI -> IRQ. 6244 * 6245 * Return codes 6246 * 0 - sucessful 6247 * other values - error 6248 **/ 6249 static uint32_t 6250 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6251 { 6252 uint32_t intr_mode = LPFC_INTR_ERROR; 6253 int retval; 6254 6255 if (cfg_mode == 2) { 6256 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6257 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 6258 if (!retval) { 6259 /* Now, try to enable MSI-X interrupt mode */ 6260 retval = lpfc_sli_enable_msix(phba); 6261 if (!retval) { 6262 /* Indicate initialization to MSI-X mode */ 6263 phba->intr_type = MSIX; 6264 intr_mode = 2; 6265 } 6266 } 6267 } 6268 6269 /* Fallback to MSI if MSI-X initialization failed */ 6270 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6271 retval = lpfc_sli_enable_msi(phba); 6272 if (!retval) { 6273 /* Indicate initialization to MSI mode */ 6274 phba->intr_type = MSI; 6275 intr_mode = 1; 6276 } 6277 } 6278 6279 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6280 if (phba->intr_type == NONE) { 6281 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 6282 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6283 if (!retval) { 6284 /* Indicate initialization to INTx mode */ 6285 phba->intr_type = INTx; 6286 intr_mode = 0; 6287 } 6288 } 6289 return intr_mode; 6290 } 6291 6292 /** 6293 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 6294 * @phba: pointer to lpfc hba data structure. 6295 * 6296 * This routine is invoked to disable device interrupt and disassociate the 6297 * driver's interrupt handler(s) from interrupt vector(s) to device with 6298 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 6299 * release the interrupt vector(s) for the message signaled interrupt. 6300 **/ 6301 static void 6302 lpfc_sli_disable_intr(struct lpfc_hba *phba) 6303 { 6304 /* Disable the currently initialized interrupt mode */ 6305 if (phba->intr_type == MSIX) 6306 lpfc_sli_disable_msix(phba); 6307 else if (phba->intr_type == MSI) 6308 lpfc_sli_disable_msi(phba); 6309 else if (phba->intr_type == INTx) 6310 free_irq(phba->pcidev->irq, phba); 6311 6312 /* Reset interrupt management states */ 6313 phba->intr_type = NONE; 6314 phba->sli.slistat.sli_intr = 0; 6315 6316 return; 6317 } 6318 6319 /** 6320 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 6321 * @phba: pointer to lpfc hba data structure. 6322 * 6323 * This routine is invoked to enable the MSI-X interrupt vectors to device 6324 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 6325 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 6326 * enables either all or nothing, depending on the current availability of 6327 * PCI vector resources. The device driver is responsible for calling the 6328 * individual request_irq() to register each MSI-X vector with a interrupt 6329 * handler, which is done in this function. Note that later when device is 6330 * unloading, the driver should always call free_irq() on all MSI-X vectors 6331 * it has done request_irq() on before calling pci_disable_msix(). Failure 6332 * to do so results in a BUG_ON() and a device will be left with MSI-X 6333 * enabled and leaks its vectors. 6334 * 6335 * Return codes 6336 * 0 - sucessful 6337 * other values - error 6338 **/ 6339 static int 6340 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 6341 { 6342 int rc, index; 6343 6344 /* Set up MSI-X multi-message vectors */ 6345 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6346 phba->sli4_hba.msix_entries[index].entry = index; 6347 6348 /* Configure MSI-X capability structure */ 6349 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 6350 phba->sli4_hba.cfg_eqn); 6351 if (rc) { 6352 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6353 "0484 PCI enable MSI-X failed (%d)\n", rc); 6354 goto msi_fail_out; 6355 } 6356 /* Log MSI-X vector assignment */ 6357 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 6358 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6359 "0489 MSI-X entry[%d]: vector=x%x " 6360 "message=%d\n", index, 6361 phba->sli4_hba.msix_entries[index].vector, 6362 phba->sli4_hba.msix_entries[index].entry); 6363 /* 6364 * Assign MSI-X vectors to interrupt handlers 6365 */ 6366 6367 /* The first vector must associated to slow-path handler for MQ */ 6368 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 6369 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 6370 LPFC_SP_DRIVER_HANDLER_NAME, phba); 6371 if (rc) { 6372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6373 "0485 MSI-X slow-path request_irq failed " 6374 "(%d)\n", rc); 6375 goto msi_fail_out; 6376 } 6377 6378 /* The rest of the vector(s) are associated to fast-path handler(s) */ 6379 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) { 6380 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 6381 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 6382 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 6383 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 6384 LPFC_FP_DRIVER_HANDLER_NAME, 6385 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6386 if (rc) { 6387 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6388 "0486 MSI-X fast-path (%d) " 6389 "request_irq failed (%d)\n", index, rc); 6390 goto cfg_fail_out; 6391 } 6392 } 6393 6394 return rc; 6395 6396 cfg_fail_out: 6397 /* free the irq already requested */ 6398 for (--index; index >= 1; index--) 6399 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 6400 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6401 6402 /* free the irq already requested */ 6403 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6404 6405 msi_fail_out: 6406 /* Unconfigure MSI-X capability structure */ 6407 pci_disable_msix(phba->pcidev); 6408 return rc; 6409 } 6410 6411 /** 6412 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 6413 * @phba: pointer to lpfc hba data structure. 6414 * 6415 * This routine is invoked to release the MSI-X vectors and then disable the 6416 * MSI-X interrupt mode to device with SLI-4 interface spec. 6417 **/ 6418 static void 6419 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 6420 { 6421 int index; 6422 6423 /* Free up MSI-X multi-message vectors */ 6424 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 6425 6426 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) 6427 free_irq(phba->sli4_hba.msix_entries[index].vector, 6428 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 6429 /* Disable MSI-X */ 6430 pci_disable_msix(phba->pcidev); 6431 6432 return; 6433 } 6434 6435 /** 6436 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 6437 * @phba: pointer to lpfc hba data structure. 6438 * 6439 * This routine is invoked to enable the MSI interrupt mode to device with 6440 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 6441 * to enable the MSI vector. The device driver is responsible for calling 6442 * the request_irq() to register MSI vector with a interrupt the handler, 6443 * which is done in this function. 6444 * 6445 * Return codes 6446 * 0 - sucessful 6447 * other values - error 6448 **/ 6449 static int 6450 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 6451 { 6452 int rc, index; 6453 6454 rc = pci_enable_msi(phba->pcidev); 6455 if (!rc) 6456 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6457 "0487 PCI enable MSI mode success.\n"); 6458 else { 6459 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6460 "0488 PCI enable MSI mode failed (%d)\n", rc); 6461 return rc; 6462 } 6463 6464 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6465 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6466 if (rc) { 6467 pci_disable_msi(phba->pcidev); 6468 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6469 "0490 MSI request_irq failed (%d)\n", rc); 6470 } 6471 6472 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 6473 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6474 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6475 } 6476 6477 return rc; 6478 } 6479 6480 /** 6481 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 6482 * @phba: pointer to lpfc hba data structure. 6483 * 6484 * This routine is invoked to disable the MSI interrupt mode to device with 6485 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 6486 * done request_irq() on before calling pci_disable_msi(). Failure to do so 6487 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 6488 * its vector. 6489 **/ 6490 static void 6491 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 6492 { 6493 free_irq(phba->pcidev->irq, phba); 6494 pci_disable_msi(phba->pcidev); 6495 return; 6496 } 6497 6498 /** 6499 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 6500 * @phba: pointer to lpfc hba data structure. 6501 * 6502 * This routine is invoked to enable device interrupt and associate driver's 6503 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 6504 * interface spec. Depends on the interrupt mode configured to the driver, 6505 * the driver will try to fallback from the configured interrupt mode to an 6506 * interrupt mode which is supported by the platform, kernel, and device in 6507 * the order of: 6508 * MSI-X -> MSI -> IRQ. 6509 * 6510 * Return codes 6511 * 0 - sucessful 6512 * other values - error 6513 **/ 6514 static uint32_t 6515 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6516 { 6517 uint32_t intr_mode = LPFC_INTR_ERROR; 6518 int retval, index; 6519 6520 if (cfg_mode == 2) { 6521 /* Preparation before conf_msi mbox cmd */ 6522 retval = 0; 6523 if (!retval) { 6524 /* Now, try to enable MSI-X interrupt mode */ 6525 retval = lpfc_sli4_enable_msix(phba); 6526 if (!retval) { 6527 /* Indicate initialization to MSI-X mode */ 6528 phba->intr_type = MSIX; 6529 intr_mode = 2; 6530 } 6531 } 6532 } 6533 6534 /* Fallback to MSI if MSI-X initialization failed */ 6535 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6536 retval = lpfc_sli4_enable_msi(phba); 6537 if (!retval) { 6538 /* Indicate initialization to MSI mode */ 6539 phba->intr_type = MSI; 6540 intr_mode = 1; 6541 } 6542 } 6543 6544 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6545 if (phba->intr_type == NONE) { 6546 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 6547 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6548 if (!retval) { 6549 /* Indicate initialization to INTx mode */ 6550 phba->intr_type = INTx; 6551 intr_mode = 0; 6552 for (index = 0; index < phba->cfg_fcp_eq_count; 6553 index++) { 6554 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 6555 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 6556 } 6557 } 6558 } 6559 return intr_mode; 6560 } 6561 6562 /** 6563 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 6564 * @phba: pointer to lpfc hba data structure. 6565 * 6566 * This routine is invoked to disable device interrupt and disassociate 6567 * the driver's interrupt handler(s) from interrupt vector(s) to device 6568 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 6569 * will release the interrupt vector(s) for the message signaled interrupt. 6570 **/ 6571 static void 6572 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 6573 { 6574 /* Disable the currently initialized interrupt mode */ 6575 if (phba->intr_type == MSIX) 6576 lpfc_sli4_disable_msix(phba); 6577 else if (phba->intr_type == MSI) 6578 lpfc_sli4_disable_msi(phba); 6579 else if (phba->intr_type == INTx) 6580 free_irq(phba->pcidev->irq, phba); 6581 6582 /* Reset interrupt management states */ 6583 phba->intr_type = NONE; 6584 phba->sli.slistat.sli_intr = 0; 6585 6586 return; 6587 } 6588 6589 /** 6590 * lpfc_unset_hba - Unset SLI3 hba device initialization 6591 * @phba: pointer to lpfc hba data structure. 6592 * 6593 * This routine is invoked to unset the HBA device initialization steps to 6594 * a device with SLI-3 interface spec. 6595 **/ 6596 static void 6597 lpfc_unset_hba(struct lpfc_hba *phba) 6598 { 6599 struct lpfc_vport *vport = phba->pport; 6600 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6601 6602 spin_lock_irq(shost->host_lock); 6603 vport->load_flag |= FC_UNLOADING; 6604 spin_unlock_irq(shost->host_lock); 6605 6606 lpfc_stop_hba_timers(phba); 6607 6608 phba->pport->work_port_events = 0; 6609 6610 lpfc_sli_hba_down(phba); 6611 6612 lpfc_sli_brdrestart(phba); 6613 6614 lpfc_sli_disable_intr(phba); 6615 6616 return; 6617 } 6618 6619 /** 6620 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 6621 * @phba: pointer to lpfc hba data structure. 6622 * 6623 * This routine is invoked to unset the HBA device initialization steps to 6624 * a device with SLI-4 interface spec. 6625 **/ 6626 static void 6627 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 6628 { 6629 struct lpfc_vport *vport = phba->pport; 6630 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 6631 6632 spin_lock_irq(shost->host_lock); 6633 vport->load_flag |= FC_UNLOADING; 6634 spin_unlock_irq(shost->host_lock); 6635 6636 phba->pport->work_port_events = 0; 6637 6638 lpfc_sli4_hba_down(phba); 6639 6640 lpfc_sli4_disable_intr(phba); 6641 6642 return; 6643 } 6644 6645 /** 6646 * lpfc_sli4_hba_unset - Unset the fcoe hba 6647 * @phba: Pointer to HBA context object. 6648 * 6649 * This function is called in the SLI4 code path to reset the HBA's FCoE 6650 * function. The caller is not required to hold any lock. This routine 6651 * issues PCI function reset mailbox command to reset the FCoE function. 6652 * At the end of the function, it calls lpfc_hba_down_post function to 6653 * free any pending commands. 6654 **/ 6655 static void 6656 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 6657 { 6658 int wait_cnt = 0; 6659 LPFC_MBOXQ_t *mboxq; 6660 6661 lpfc_stop_hba_timers(phba); 6662 phba->sli4_hba.intr_enable = 0; 6663 6664 /* 6665 * Gracefully wait out the potential current outstanding asynchronous 6666 * mailbox command. 6667 */ 6668 6669 /* First, block any pending async mailbox command from posted */ 6670 spin_lock_irq(&phba->hbalock); 6671 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 6672 spin_unlock_irq(&phba->hbalock); 6673 /* Now, trying to wait it out if we can */ 6674 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6675 msleep(10); 6676 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 6677 break; 6678 } 6679 /* Forcefully release the outstanding mailbox command if timed out */ 6680 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 6681 spin_lock_irq(&phba->hbalock); 6682 mboxq = phba->sli.mbox_active; 6683 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 6684 __lpfc_mbox_cmpl_put(phba, mboxq); 6685 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 6686 phba->sli.mbox_active = NULL; 6687 spin_unlock_irq(&phba->hbalock); 6688 } 6689 6690 /* Tear down the queues in the HBA */ 6691 lpfc_sli4_queue_unset(phba); 6692 6693 /* Disable PCI subsystem interrupt */ 6694 lpfc_sli4_disable_intr(phba); 6695 6696 /* Stop kthread signal shall trigger work_done one more time */ 6697 kthread_stop(phba->worker_thread); 6698 6699 /* Stop the SLI4 device port */ 6700 phba->pport->work_port_events = 0; 6701 } 6702 6703 /** 6704 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 6705 * @pdev: pointer to PCI device 6706 * @pid: pointer to PCI device identifier 6707 * 6708 * This routine is to be called to attach a device with SLI-3 interface spec 6709 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6710 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 6711 * information of the device and driver to see if the driver state that it can 6712 * support this kind of device. If the match is successful, the driver core 6713 * invokes this routine. If this routine determines it can claim the HBA, it 6714 * does all the initialization that it needs to do to handle the HBA properly. 6715 * 6716 * Return code 6717 * 0 - driver can claim the device 6718 * negative value - driver can not claim the device 6719 **/ 6720 static int __devinit 6721 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 6722 { 6723 struct lpfc_hba *phba; 6724 struct lpfc_vport *vport = NULL; 6725 int error; 6726 uint32_t cfg_mode, intr_mode; 6727 6728 /* Allocate memory for HBA structure */ 6729 phba = lpfc_hba_alloc(pdev); 6730 if (!phba) 6731 return -ENOMEM; 6732 6733 /* Perform generic PCI device enabling operation */ 6734 error = lpfc_enable_pci_dev(phba); 6735 if (error) { 6736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6737 "1401 Failed to enable pci device.\n"); 6738 goto out_free_phba; 6739 } 6740 6741 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 6742 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 6743 if (error) 6744 goto out_disable_pci_dev; 6745 6746 /* Set up SLI-3 specific device PCI memory space */ 6747 error = lpfc_sli_pci_mem_setup(phba); 6748 if (error) { 6749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6750 "1402 Failed to set up pci memory space.\n"); 6751 goto out_disable_pci_dev; 6752 } 6753 6754 /* Set up phase-1 common device driver resources */ 6755 error = lpfc_setup_driver_resource_phase1(phba); 6756 if (error) { 6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6758 "1403 Failed to set up driver resource.\n"); 6759 goto out_unset_pci_mem_s3; 6760 } 6761 6762 /* Set up SLI-3 specific device driver resources */ 6763 error = lpfc_sli_driver_resource_setup(phba); 6764 if (error) { 6765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6766 "1404 Failed to set up driver resource.\n"); 6767 goto out_unset_pci_mem_s3; 6768 } 6769 6770 /* Initialize and populate the iocb list per host */ 6771 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 6772 if (error) { 6773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6774 "1405 Failed to initialize iocb list.\n"); 6775 goto out_unset_driver_resource_s3; 6776 } 6777 6778 /* Set up common device driver resources */ 6779 error = lpfc_setup_driver_resource_phase2(phba); 6780 if (error) { 6781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6782 "1406 Failed to set up driver resource.\n"); 6783 goto out_free_iocb_list; 6784 } 6785 6786 /* Create SCSI host to the physical port */ 6787 error = lpfc_create_shost(phba); 6788 if (error) { 6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6790 "1407 Failed to create scsi host.\n"); 6791 goto out_unset_driver_resource; 6792 } 6793 6794 /* Configure sysfs attributes */ 6795 vport = phba->pport; 6796 error = lpfc_alloc_sysfs_attr(vport); 6797 if (error) { 6798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6799 "1476 Failed to allocate sysfs attr\n"); 6800 goto out_destroy_shost; 6801 } 6802 6803 /* Now, trying to enable interrupt and bring up the device */ 6804 cfg_mode = phba->cfg_use_msi; 6805 while (true) { 6806 /* Put device to a known state before enabling interrupt */ 6807 lpfc_stop_port(phba); 6808 /* Configure and enable interrupt */ 6809 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 6810 if (intr_mode == LPFC_INTR_ERROR) { 6811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6812 "0431 Failed to enable interrupt.\n"); 6813 error = -ENODEV; 6814 goto out_free_sysfs_attr; 6815 } 6816 /* SLI-3 HBA setup */ 6817 if (lpfc_sli_hba_setup(phba)) { 6818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6819 "1477 Failed to set up hba\n"); 6820 error = -ENODEV; 6821 goto out_remove_device; 6822 } 6823 6824 /* Wait 50ms for the interrupts of previous mailbox commands */ 6825 msleep(50); 6826 /* Check active interrupts on message signaled interrupts */ 6827 if (intr_mode == 0 || 6828 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6829 /* Log the current active interrupt mode */ 6830 phba->intr_mode = intr_mode; 6831 lpfc_log_intr_mode(phba, intr_mode); 6832 break; 6833 } else { 6834 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6835 "0447 Configure interrupt mode (%d) " 6836 "failed active interrupt test.\n", 6837 intr_mode); 6838 /* Disable the current interrupt mode */ 6839 lpfc_sli_disable_intr(phba); 6840 /* Try next level of interrupt mode */ 6841 cfg_mode = --intr_mode; 6842 } 6843 } 6844 6845 /* Perform post initialization setup */ 6846 lpfc_post_init_setup(phba); 6847 6848 /* Check if there are static vports to be created. */ 6849 lpfc_create_static_vport(phba); 6850 6851 return 0; 6852 6853 out_remove_device: 6854 lpfc_unset_hba(phba); 6855 out_free_sysfs_attr: 6856 lpfc_free_sysfs_attr(vport); 6857 out_destroy_shost: 6858 lpfc_destroy_shost(phba); 6859 out_unset_driver_resource: 6860 lpfc_unset_driver_resource_phase2(phba); 6861 out_free_iocb_list: 6862 lpfc_free_iocb_list(phba); 6863 out_unset_driver_resource_s3: 6864 lpfc_sli_driver_resource_unset(phba); 6865 out_unset_pci_mem_s3: 6866 lpfc_sli_pci_mem_unset(phba); 6867 out_disable_pci_dev: 6868 lpfc_disable_pci_dev(phba); 6869 out_free_phba: 6870 lpfc_hba_free(phba); 6871 return error; 6872 } 6873 6874 /** 6875 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 6876 * @pdev: pointer to PCI device 6877 * 6878 * This routine is to be called to disattach a device with SLI-3 interface 6879 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 6880 * removed from PCI bus, it performs all the necessary cleanup for the HBA 6881 * device to be removed from the PCI subsystem properly. 6882 **/ 6883 static void __devexit 6884 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 6885 { 6886 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6887 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6888 struct lpfc_vport **vports; 6889 struct lpfc_hba *phba = vport->phba; 6890 int i; 6891 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 6892 6893 spin_lock_irq(&phba->hbalock); 6894 vport->load_flag |= FC_UNLOADING; 6895 spin_unlock_irq(&phba->hbalock); 6896 6897 lpfc_free_sysfs_attr(vport); 6898 6899 /* Release all the vports against this physical port */ 6900 vports = lpfc_create_vport_work_array(phba); 6901 if (vports != NULL) 6902 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 6903 fc_vport_terminate(vports[i]->fc_vport); 6904 lpfc_destroy_vport_work_array(phba, vports); 6905 6906 /* Remove FC host and then SCSI host with the physical port */ 6907 fc_remove_host(shost); 6908 scsi_remove_host(shost); 6909 lpfc_cleanup(vport); 6910 6911 /* 6912 * Bring down the SLI Layer. This step disable all interrupts, 6913 * clears the rings, discards all mailbox commands, and resets 6914 * the HBA. 6915 */ 6916 6917 /* HBA interrupt will be diabled after this call */ 6918 lpfc_sli_hba_down(phba); 6919 /* Stop kthread signal shall trigger work_done one more time */ 6920 kthread_stop(phba->worker_thread); 6921 /* Final cleanup of txcmplq and reset the HBA */ 6922 lpfc_sli_brdrestart(phba); 6923 6924 lpfc_stop_hba_timers(phba); 6925 spin_lock_irq(&phba->hbalock); 6926 list_del_init(&vport->listentry); 6927 spin_unlock_irq(&phba->hbalock); 6928 6929 lpfc_debugfs_terminate(vport); 6930 6931 /* Disable interrupt */ 6932 lpfc_sli_disable_intr(phba); 6933 6934 pci_set_drvdata(pdev, NULL); 6935 scsi_host_put(shost); 6936 6937 /* 6938 * Call scsi_free before mem_free since scsi bufs are released to their 6939 * corresponding pools here. 6940 */ 6941 lpfc_scsi_free(phba); 6942 lpfc_mem_free_all(phba); 6943 6944 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6945 phba->hbqslimp.virt, phba->hbqslimp.phys); 6946 6947 /* Free resources associated with SLI2 interface */ 6948 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6949 phba->slim2p.virt, phba->slim2p.phys); 6950 6951 /* unmap adapter SLIM and Control Registers */ 6952 iounmap(phba->ctrl_regs_memmap_p); 6953 iounmap(phba->slim_memmap_p); 6954 6955 lpfc_hba_free(phba); 6956 6957 pci_release_selected_regions(pdev, bars); 6958 pci_disable_device(pdev); 6959 } 6960 6961 /** 6962 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 6963 * @pdev: pointer to PCI device 6964 * @msg: power management message 6965 * 6966 * This routine is to be called from the kernel's PCI subsystem to support 6967 * system Power Management (PM) to device with SLI-3 interface spec. When 6968 * PM invokes this method, it quiesces the device by stopping the driver's 6969 * worker thread for the device, turning off device's interrupt and DMA, 6970 * and bring the device offline. Note that as the driver implements the 6971 * minimum PM requirements to a power-aware driver's PM support for the 6972 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 6973 * to the suspend() method call will be treated as SUSPEND and the driver will 6974 * fully reinitialize its device during resume() method call, the driver will 6975 * set device to PCI_D3hot state in PCI config space instead of setting it 6976 * according to the @msg provided by the PM. 6977 * 6978 * Return code 6979 * 0 - driver suspended the device 6980 * Error otherwise 6981 **/ 6982 static int 6983 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 6984 { 6985 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6986 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 6987 6988 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6989 "0473 PCI device Power Management suspend.\n"); 6990 6991 /* Bring down the device */ 6992 lpfc_offline_prep(phba); 6993 lpfc_offline(phba); 6994 kthread_stop(phba->worker_thread); 6995 6996 /* Disable interrupt from device */ 6997 lpfc_sli_disable_intr(phba); 6998 6999 /* Save device state to PCI config space */ 7000 pci_save_state(pdev); 7001 pci_set_power_state(pdev, PCI_D3hot); 7002 7003 return 0; 7004 } 7005 7006 /** 7007 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 7008 * @pdev: pointer to PCI device 7009 * 7010 * This routine is to be called from the kernel's PCI subsystem to support 7011 * system Power Management (PM) to device with SLI-3 interface spec. When PM 7012 * invokes this method, it restores the device's PCI config space state and 7013 * fully reinitializes the device and brings it online. Note that as the 7014 * driver implements the minimum PM requirements to a power-aware driver's 7015 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 7016 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 7017 * driver will fully reinitialize its device during resume() method call, 7018 * the device will be set to PCI_D0 directly in PCI config space before 7019 * restoring the state. 7020 * 7021 * Return code 7022 * 0 - driver suspended the device 7023 * Error otherwise 7024 **/ 7025 static int 7026 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 7027 { 7028 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7029 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7030 uint32_t intr_mode; 7031 int error; 7032 7033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7034 "0452 PCI device Power Management resume.\n"); 7035 7036 /* Restore device state from PCI config space */ 7037 pci_set_power_state(pdev, PCI_D0); 7038 pci_restore_state(pdev); 7039 if (pdev->is_busmaster) 7040 pci_set_master(pdev); 7041 7042 /* Startup the kernel thread for this host adapter. */ 7043 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7044 "lpfc_worker_%d", phba->brd_no); 7045 if (IS_ERR(phba->worker_thread)) { 7046 error = PTR_ERR(phba->worker_thread); 7047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7048 "0434 PM resume failed to start worker " 7049 "thread: error=x%x.\n", error); 7050 return error; 7051 } 7052 7053 /* Configure and enable interrupt */ 7054 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7055 if (intr_mode == LPFC_INTR_ERROR) { 7056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7057 "0430 PM resume Failed to enable interrupt\n"); 7058 return -EIO; 7059 } else 7060 phba->intr_mode = intr_mode; 7061 7062 /* Restart HBA and bring it online */ 7063 lpfc_sli_brdrestart(phba); 7064 lpfc_online(phba); 7065 7066 /* Log the current active interrupt mode */ 7067 lpfc_log_intr_mode(phba, phba->intr_mode); 7068 7069 return 0; 7070 } 7071 7072 /** 7073 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 7074 * @pdev: pointer to PCI device. 7075 * @state: the current PCI connection state. 7076 * 7077 * This routine is called from the PCI subsystem for I/O error handling to 7078 * device with SLI-3 interface spec. This function is called by the PCI 7079 * subsystem after a PCI bus error affecting this device has been detected. 7080 * When this function is invoked, it will need to stop all the I/Os and 7081 * interrupt(s) to the device. Once that is done, it will return 7082 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 7083 * as desired. 7084 * 7085 * Return codes 7086 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7087 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7088 **/ 7089 static pci_ers_result_t 7090 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 7091 { 7092 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7093 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7094 struct lpfc_sli *psli = &phba->sli; 7095 struct lpfc_sli_ring *pring; 7096 7097 if (state == pci_channel_io_perm_failure) { 7098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7099 "0472 PCI channel I/O permanent failure\n"); 7100 /* Block all SCSI devices' I/Os on the host */ 7101 lpfc_scsi_dev_block(phba); 7102 /* Clean up all driver's outstanding SCSI I/Os */ 7103 lpfc_sli_flush_fcp_rings(phba); 7104 return PCI_ERS_RESULT_DISCONNECT; 7105 } 7106 7107 pci_disable_device(pdev); 7108 /* 7109 * There may be I/Os dropped by the firmware. 7110 * Error iocb (I/O) on txcmplq and let the SCSI layer 7111 * retry it after re-establishing link. 7112 */ 7113 pring = &psli->ring[psli->fcp_ring]; 7114 lpfc_sli_abort_iocb_ring(phba, pring); 7115 7116 /* Disable interrupt */ 7117 lpfc_sli_disable_intr(phba); 7118 7119 /* Request a slot reset. */ 7120 return PCI_ERS_RESULT_NEED_RESET; 7121 } 7122 7123 /** 7124 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 7125 * @pdev: pointer to PCI device. 7126 * 7127 * This routine is called from the PCI subsystem for error handling to 7128 * device with SLI-3 interface spec. This is called after PCI bus has been 7129 * reset to restart the PCI card from scratch, as if from a cold-boot. 7130 * During the PCI subsystem error recovery, after driver returns 7131 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7132 * recovery and then call this routine before calling the .resume method 7133 * to recover the device. This function will initialize the HBA device, 7134 * enable the interrupt, but it will just put the HBA to offline state 7135 * without passing any I/O traffic. 7136 * 7137 * Return codes 7138 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7139 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7140 */ 7141 static pci_ers_result_t 7142 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 7143 { 7144 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7145 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7146 struct lpfc_sli *psli = &phba->sli; 7147 uint32_t intr_mode; 7148 7149 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 7150 if (pci_enable_device_mem(pdev)) { 7151 printk(KERN_ERR "lpfc: Cannot re-enable " 7152 "PCI device after reset.\n"); 7153 return PCI_ERS_RESULT_DISCONNECT; 7154 } 7155 7156 pci_restore_state(pdev); 7157 if (pdev->is_busmaster) 7158 pci_set_master(pdev); 7159 7160 spin_lock_irq(&phba->hbalock); 7161 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 7162 spin_unlock_irq(&phba->hbalock); 7163 7164 /* Configure and enable interrupt */ 7165 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 7166 if (intr_mode == LPFC_INTR_ERROR) { 7167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7168 "0427 Cannot re-enable interrupt after " 7169 "slot reset.\n"); 7170 return PCI_ERS_RESULT_DISCONNECT; 7171 } else 7172 phba->intr_mode = intr_mode; 7173 7174 /* Take device offline; this will perform cleanup */ 7175 lpfc_offline(phba); 7176 lpfc_sli_brdrestart(phba); 7177 7178 /* Log the current active interrupt mode */ 7179 lpfc_log_intr_mode(phba, phba->intr_mode); 7180 7181 return PCI_ERS_RESULT_RECOVERED; 7182 } 7183 7184 /** 7185 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 7186 * @pdev: pointer to PCI device 7187 * 7188 * This routine is called from the PCI subsystem for error handling to device 7189 * with SLI-3 interface spec. It is called when kernel error recovery tells 7190 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7191 * error recovery. After this call, traffic can start to flow from this device 7192 * again. 7193 */ 7194 static void 7195 lpfc_io_resume_s3(struct pci_dev *pdev) 7196 { 7197 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7198 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7199 7200 lpfc_online(phba); 7201 } 7202 7203 /** 7204 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 7205 * @phba: pointer to lpfc hba data structure. 7206 * 7207 * returns the number of ELS/CT IOCBs to reserve 7208 **/ 7209 int 7210 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 7211 { 7212 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 7213 7214 if (phba->sli_rev == LPFC_SLI_REV4) { 7215 if (max_xri <= 100) 7216 return 4; 7217 else if (max_xri <= 256) 7218 return 8; 7219 else if (max_xri <= 512) 7220 return 16; 7221 else if (max_xri <= 1024) 7222 return 32; 7223 else 7224 return 48; 7225 } else 7226 return 0; 7227 } 7228 7229 /** 7230 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 7231 * @pdev: pointer to PCI device 7232 * @pid: pointer to PCI device identifier 7233 * 7234 * This routine is called from the kernel's PCI subsystem to device with 7235 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7236 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 7237 * information of the device and driver to see if the driver state that it 7238 * can support this kind of device. If the match is successful, the driver 7239 * core invokes this routine. If this routine determines it can claim the HBA, 7240 * it does all the initialization that it needs to do to handle the HBA 7241 * properly. 7242 * 7243 * Return code 7244 * 0 - driver can claim the device 7245 * negative value - driver can not claim the device 7246 **/ 7247 static int __devinit 7248 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 7249 { 7250 struct lpfc_hba *phba; 7251 struct lpfc_vport *vport = NULL; 7252 int error; 7253 uint32_t cfg_mode, intr_mode; 7254 int mcnt; 7255 7256 /* Allocate memory for HBA structure */ 7257 phba = lpfc_hba_alloc(pdev); 7258 if (!phba) 7259 return -ENOMEM; 7260 7261 /* Perform generic PCI device enabling operation */ 7262 error = lpfc_enable_pci_dev(phba); 7263 if (error) { 7264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7265 "1409 Failed to enable pci device.\n"); 7266 goto out_free_phba; 7267 } 7268 7269 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 7270 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 7271 if (error) 7272 goto out_disable_pci_dev; 7273 7274 /* Set up SLI-4 specific device PCI memory space */ 7275 error = lpfc_sli4_pci_mem_setup(phba); 7276 if (error) { 7277 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7278 "1410 Failed to set up pci memory space.\n"); 7279 goto out_disable_pci_dev; 7280 } 7281 7282 /* Set up phase-1 common device driver resources */ 7283 error = lpfc_setup_driver_resource_phase1(phba); 7284 if (error) { 7285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7286 "1411 Failed to set up driver resource.\n"); 7287 goto out_unset_pci_mem_s4; 7288 } 7289 7290 /* Set up SLI-4 Specific device driver resources */ 7291 error = lpfc_sli4_driver_resource_setup(phba); 7292 if (error) { 7293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7294 "1412 Failed to set up driver resource.\n"); 7295 goto out_unset_pci_mem_s4; 7296 } 7297 7298 /* Initialize and populate the iocb list per host */ 7299 error = lpfc_init_iocb_list(phba, 7300 phba->sli4_hba.max_cfg_param.max_xri); 7301 if (error) { 7302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7303 "1413 Failed to initialize iocb list.\n"); 7304 goto out_unset_driver_resource_s4; 7305 } 7306 7307 /* Set up common device driver resources */ 7308 error = lpfc_setup_driver_resource_phase2(phba); 7309 if (error) { 7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7311 "1414 Failed to set up driver resource.\n"); 7312 goto out_free_iocb_list; 7313 } 7314 7315 /* Create SCSI host to the physical port */ 7316 error = lpfc_create_shost(phba); 7317 if (error) { 7318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7319 "1415 Failed to create scsi host.\n"); 7320 goto out_unset_driver_resource; 7321 } 7322 7323 /* Configure sysfs attributes */ 7324 vport = phba->pport; 7325 error = lpfc_alloc_sysfs_attr(vport); 7326 if (error) { 7327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7328 "1416 Failed to allocate sysfs attr\n"); 7329 goto out_destroy_shost; 7330 } 7331 7332 /* Now, trying to enable interrupt and bring up the device */ 7333 cfg_mode = phba->cfg_use_msi; 7334 while (true) { 7335 /* Put device to a known state before enabling interrupt */ 7336 lpfc_stop_port(phba); 7337 /* Configure and enable interrupt */ 7338 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 7339 if (intr_mode == LPFC_INTR_ERROR) { 7340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7341 "0426 Failed to enable interrupt.\n"); 7342 error = -ENODEV; 7343 goto out_free_sysfs_attr; 7344 } 7345 /* Set up SLI-4 HBA */ 7346 if (lpfc_sli4_hba_setup(phba)) { 7347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7348 "1421 Failed to set up hba\n"); 7349 error = -ENODEV; 7350 goto out_disable_intr; 7351 } 7352 7353 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 7354 if (intr_mode != 0) 7355 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 7356 LPFC_ACT_INTR_CNT); 7357 7358 /* Check active interrupts received only for MSI/MSI-X */ 7359 if (intr_mode == 0 || 7360 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 7361 /* Log the current active interrupt mode */ 7362 phba->intr_mode = intr_mode; 7363 lpfc_log_intr_mode(phba, intr_mode); 7364 break; 7365 } 7366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7367 "0451 Configure interrupt mode (%d) " 7368 "failed active interrupt test.\n", 7369 intr_mode); 7370 /* Unset the preivous SLI-4 HBA setup */ 7371 lpfc_sli4_unset_hba(phba); 7372 /* Try next level of interrupt mode */ 7373 cfg_mode = --intr_mode; 7374 } 7375 7376 /* Perform post initialization setup */ 7377 lpfc_post_init_setup(phba); 7378 7379 /* Check if there are static vports to be created. */ 7380 lpfc_create_static_vport(phba); 7381 7382 return 0; 7383 7384 out_disable_intr: 7385 lpfc_sli4_disable_intr(phba); 7386 out_free_sysfs_attr: 7387 lpfc_free_sysfs_attr(vport); 7388 out_destroy_shost: 7389 lpfc_destroy_shost(phba); 7390 out_unset_driver_resource: 7391 lpfc_unset_driver_resource_phase2(phba); 7392 out_free_iocb_list: 7393 lpfc_free_iocb_list(phba); 7394 out_unset_driver_resource_s4: 7395 lpfc_sli4_driver_resource_unset(phba); 7396 out_unset_pci_mem_s4: 7397 lpfc_sli4_pci_mem_unset(phba); 7398 out_disable_pci_dev: 7399 lpfc_disable_pci_dev(phba); 7400 out_free_phba: 7401 lpfc_hba_free(phba); 7402 return error; 7403 } 7404 7405 /** 7406 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 7407 * @pdev: pointer to PCI device 7408 * 7409 * This routine is called from the kernel's PCI subsystem to device with 7410 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 7411 * removed from PCI bus, it performs all the necessary cleanup for the HBA 7412 * device to be removed from the PCI subsystem properly. 7413 **/ 7414 static void __devexit 7415 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 7416 { 7417 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7418 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 7419 struct lpfc_vport **vports; 7420 struct lpfc_hba *phba = vport->phba; 7421 int i; 7422 7423 /* Mark the device unloading flag */ 7424 spin_lock_irq(&phba->hbalock); 7425 vport->load_flag |= FC_UNLOADING; 7426 spin_unlock_irq(&phba->hbalock); 7427 7428 /* Free the HBA sysfs attributes */ 7429 lpfc_free_sysfs_attr(vport); 7430 7431 /* Release all the vports against this physical port */ 7432 vports = lpfc_create_vport_work_array(phba); 7433 if (vports != NULL) 7434 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 7435 fc_vport_terminate(vports[i]->fc_vport); 7436 lpfc_destroy_vport_work_array(phba, vports); 7437 7438 /* Remove FC host and then SCSI host with the physical port */ 7439 fc_remove_host(shost); 7440 scsi_remove_host(shost); 7441 7442 /* Perform cleanup on the physical port */ 7443 lpfc_cleanup(vport); 7444 7445 /* 7446 * Bring down the SLI Layer. This step disables all interrupts, 7447 * clears the rings, discards all mailbox commands, and resets 7448 * the HBA FCoE function. 7449 */ 7450 lpfc_debugfs_terminate(vport); 7451 lpfc_sli4_hba_unset(phba); 7452 7453 spin_lock_irq(&phba->hbalock); 7454 list_del_init(&vport->listentry); 7455 spin_unlock_irq(&phba->hbalock); 7456 7457 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi 7458 * buffers are released to their corresponding pools here. 7459 */ 7460 lpfc_scsi_free(phba); 7461 lpfc_sli4_driver_resource_unset(phba); 7462 7463 /* Unmap adapter Control and Doorbell registers */ 7464 lpfc_sli4_pci_mem_unset(phba); 7465 7466 /* Release PCI resources and disable device's PCI function */ 7467 scsi_host_put(shost); 7468 lpfc_disable_pci_dev(phba); 7469 7470 /* Finally, free the driver's device data structure */ 7471 lpfc_hba_free(phba); 7472 7473 return; 7474 } 7475 7476 /** 7477 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 7478 * @pdev: pointer to PCI device 7479 * @msg: power management message 7480 * 7481 * This routine is called from the kernel's PCI subsystem to support system 7482 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 7483 * this method, it quiesces the device by stopping the driver's worker 7484 * thread for the device, turning off device's interrupt and DMA, and bring 7485 * the device offline. Note that as the driver implements the minimum PM 7486 * requirements to a power-aware driver's PM support for suspend/resume -- all 7487 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 7488 * method call will be treated as SUSPEND and the driver will fully 7489 * reinitialize its device during resume() method call, the driver will set 7490 * device to PCI_D3hot state in PCI config space instead of setting it 7491 * according to the @msg provided by the PM. 7492 * 7493 * Return code 7494 * 0 - driver suspended the device 7495 * Error otherwise 7496 **/ 7497 static int 7498 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 7499 { 7500 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7501 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7502 7503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7504 "0298 PCI device Power Management suspend.\n"); 7505 7506 /* Bring down the device */ 7507 lpfc_offline_prep(phba); 7508 lpfc_offline(phba); 7509 kthread_stop(phba->worker_thread); 7510 7511 /* Disable interrupt from device */ 7512 lpfc_sli4_disable_intr(phba); 7513 7514 /* Save device state to PCI config space */ 7515 pci_save_state(pdev); 7516 pci_set_power_state(pdev, PCI_D3hot); 7517 7518 return 0; 7519 } 7520 7521 /** 7522 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 7523 * @pdev: pointer to PCI device 7524 * 7525 * This routine is called from the kernel's PCI subsystem to support system 7526 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 7527 * this method, it restores the device's PCI config space state and fully 7528 * reinitializes the device and brings it online. Note that as the driver 7529 * implements the minimum PM requirements to a power-aware driver's PM for 7530 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 7531 * to the suspend() method call will be treated as SUSPEND and the driver 7532 * will fully reinitialize its device during resume() method call, the device 7533 * will be set to PCI_D0 directly in PCI config space before restoring the 7534 * state. 7535 * 7536 * Return code 7537 * 0 - driver suspended the device 7538 * Error otherwise 7539 **/ 7540 static int 7541 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 7542 { 7543 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7544 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7545 uint32_t intr_mode; 7546 int error; 7547 7548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7549 "0292 PCI device Power Management resume.\n"); 7550 7551 /* Restore device state from PCI config space */ 7552 pci_set_power_state(pdev, PCI_D0); 7553 pci_restore_state(pdev); 7554 if (pdev->is_busmaster) 7555 pci_set_master(pdev); 7556 7557 /* Startup the kernel thread for this host adapter. */ 7558 phba->worker_thread = kthread_run(lpfc_do_work, phba, 7559 "lpfc_worker_%d", phba->brd_no); 7560 if (IS_ERR(phba->worker_thread)) { 7561 error = PTR_ERR(phba->worker_thread); 7562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7563 "0293 PM resume failed to start worker " 7564 "thread: error=x%x.\n", error); 7565 return error; 7566 } 7567 7568 /* Configure and enable interrupt */ 7569 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 7570 if (intr_mode == LPFC_INTR_ERROR) { 7571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7572 "0294 PM resume Failed to enable interrupt\n"); 7573 return -EIO; 7574 } else 7575 phba->intr_mode = intr_mode; 7576 7577 /* Restart HBA and bring it online */ 7578 lpfc_sli_brdrestart(phba); 7579 lpfc_online(phba); 7580 7581 /* Log the current active interrupt mode */ 7582 lpfc_log_intr_mode(phba, phba->intr_mode); 7583 7584 return 0; 7585 } 7586 7587 /** 7588 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 7589 * @pdev: pointer to PCI device. 7590 * @state: the current PCI connection state. 7591 * 7592 * This routine is called from the PCI subsystem for error handling to device 7593 * with SLI-4 interface spec. This function is called by the PCI subsystem 7594 * after a PCI bus error affecting this device has been detected. When this 7595 * function is invoked, it will need to stop all the I/Os and interrupt(s) 7596 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 7597 * for the PCI subsystem to perform proper recovery as desired. 7598 * 7599 * Return codes 7600 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7601 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7602 **/ 7603 static pci_ers_result_t 7604 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 7605 { 7606 return PCI_ERS_RESULT_NEED_RESET; 7607 } 7608 7609 /** 7610 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 7611 * @pdev: pointer to PCI device. 7612 * 7613 * This routine is called from the PCI subsystem for error handling to device 7614 * with SLI-4 interface spec. It is called after PCI bus has been reset to 7615 * restart the PCI card from scratch, as if from a cold-boot. During the 7616 * PCI subsystem error recovery, after the driver returns 7617 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 7618 * recovery and then call this routine before calling the .resume method to 7619 * recover the device. This function will initialize the HBA device, enable 7620 * the interrupt, but it will just put the HBA to offline state without 7621 * passing any I/O traffic. 7622 * 7623 * Return codes 7624 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7625 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7626 */ 7627 static pci_ers_result_t 7628 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 7629 { 7630 return PCI_ERS_RESULT_RECOVERED; 7631 } 7632 7633 /** 7634 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 7635 * @pdev: pointer to PCI device 7636 * 7637 * This routine is called from the PCI subsystem for error handling to device 7638 * with SLI-4 interface spec. It is called when kernel error recovery tells 7639 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 7640 * error recovery. After this call, traffic can start to flow from this device 7641 * again. 7642 **/ 7643 static void 7644 lpfc_io_resume_s4(struct pci_dev *pdev) 7645 { 7646 return; 7647 } 7648 7649 /** 7650 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 7651 * @pdev: pointer to PCI device 7652 * @pid: pointer to PCI device identifier 7653 * 7654 * This routine is to be registered to the kernel's PCI subsystem. When an 7655 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 7656 * at PCI device-specific information of the device and driver to see if the 7657 * driver state that it can support this kind of device. If the match is 7658 * successful, the driver core invokes this routine. This routine dispatches 7659 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 7660 * do all the initialization that it needs to do to handle the HBA device 7661 * properly. 7662 * 7663 * Return code 7664 * 0 - driver can claim the device 7665 * negative value - driver can not claim the device 7666 **/ 7667 static int __devinit 7668 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 7669 { 7670 int rc; 7671 struct lpfc_sli_intf intf; 7672 7673 if (pci_read_config_dword(pdev, LPFC_SLIREV_CONF_WORD, &intf.word0)) 7674 return -ENODEV; 7675 7676 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 7677 (bf_get(lpfc_sli_intf_rev, &intf) == LPFC_SLIREV_CONF_SLI4)) 7678 rc = lpfc_pci_probe_one_s4(pdev, pid); 7679 else 7680 rc = lpfc_pci_probe_one_s3(pdev, pid); 7681 7682 return rc; 7683 } 7684 7685 /** 7686 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 7687 * @pdev: pointer to PCI device 7688 * 7689 * This routine is to be registered to the kernel's PCI subsystem. When an 7690 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 7691 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 7692 * remove routine, which will perform all the necessary cleanup for the 7693 * device to be removed from the PCI subsystem properly. 7694 **/ 7695 static void __devexit 7696 lpfc_pci_remove_one(struct pci_dev *pdev) 7697 { 7698 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7699 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7700 7701 switch (phba->pci_dev_grp) { 7702 case LPFC_PCI_DEV_LP: 7703 lpfc_pci_remove_one_s3(pdev); 7704 break; 7705 case LPFC_PCI_DEV_OC: 7706 lpfc_pci_remove_one_s4(pdev); 7707 break; 7708 default: 7709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7710 "1424 Invalid PCI device group: 0x%x\n", 7711 phba->pci_dev_grp); 7712 break; 7713 } 7714 return; 7715 } 7716 7717 /** 7718 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 7719 * @pdev: pointer to PCI device 7720 * @msg: power management message 7721 * 7722 * This routine is to be registered to the kernel's PCI subsystem to support 7723 * system Power Management (PM). When PM invokes this method, it dispatches 7724 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 7725 * suspend the device. 7726 * 7727 * Return code 7728 * 0 - driver suspended the device 7729 * Error otherwise 7730 **/ 7731 static int 7732 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 7733 { 7734 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7735 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7736 int rc = -ENODEV; 7737 7738 switch (phba->pci_dev_grp) { 7739 case LPFC_PCI_DEV_LP: 7740 rc = lpfc_pci_suspend_one_s3(pdev, msg); 7741 break; 7742 case LPFC_PCI_DEV_OC: 7743 rc = lpfc_pci_suspend_one_s4(pdev, msg); 7744 break; 7745 default: 7746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7747 "1425 Invalid PCI device group: 0x%x\n", 7748 phba->pci_dev_grp); 7749 break; 7750 } 7751 return rc; 7752 } 7753 7754 /** 7755 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 7756 * @pdev: pointer to PCI device 7757 * 7758 * This routine is to be registered to the kernel's PCI subsystem to support 7759 * system Power Management (PM). When PM invokes this method, it dispatches 7760 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 7761 * resume the device. 7762 * 7763 * Return code 7764 * 0 - driver suspended the device 7765 * Error otherwise 7766 **/ 7767 static int 7768 lpfc_pci_resume_one(struct pci_dev *pdev) 7769 { 7770 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7771 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7772 int rc = -ENODEV; 7773 7774 switch (phba->pci_dev_grp) { 7775 case LPFC_PCI_DEV_LP: 7776 rc = lpfc_pci_resume_one_s3(pdev); 7777 break; 7778 case LPFC_PCI_DEV_OC: 7779 rc = lpfc_pci_resume_one_s4(pdev); 7780 break; 7781 default: 7782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7783 "1426 Invalid PCI device group: 0x%x\n", 7784 phba->pci_dev_grp); 7785 break; 7786 } 7787 return rc; 7788 } 7789 7790 /** 7791 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 7792 * @pdev: pointer to PCI device. 7793 * @state: the current PCI connection state. 7794 * 7795 * This routine is registered to the PCI subsystem for error handling. This 7796 * function is called by the PCI subsystem after a PCI bus error affecting 7797 * this device has been detected. When this routine is invoked, it dispatches 7798 * the action to the proper SLI-3 or SLI-4 device error detected handling 7799 * routine, which will perform the proper error detected operation. 7800 * 7801 * Return codes 7802 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7803 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7804 **/ 7805 static pci_ers_result_t 7806 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 7807 { 7808 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7809 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7810 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7811 7812 switch (phba->pci_dev_grp) { 7813 case LPFC_PCI_DEV_LP: 7814 rc = lpfc_io_error_detected_s3(pdev, state); 7815 break; 7816 case LPFC_PCI_DEV_OC: 7817 rc = lpfc_io_error_detected_s4(pdev, state); 7818 break; 7819 default: 7820 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7821 "1427 Invalid PCI device group: 0x%x\n", 7822 phba->pci_dev_grp); 7823 break; 7824 } 7825 return rc; 7826 } 7827 7828 /** 7829 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 7830 * @pdev: pointer to PCI device. 7831 * 7832 * This routine is registered to the PCI subsystem for error handling. This 7833 * function is called after PCI bus has been reset to restart the PCI card 7834 * from scratch, as if from a cold-boot. When this routine is invoked, it 7835 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 7836 * routine, which will perform the proper device reset. 7837 * 7838 * Return codes 7839 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7840 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7841 **/ 7842 static pci_ers_result_t 7843 lpfc_io_slot_reset(struct pci_dev *pdev) 7844 { 7845 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7846 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7847 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 7848 7849 switch (phba->pci_dev_grp) { 7850 case LPFC_PCI_DEV_LP: 7851 rc = lpfc_io_slot_reset_s3(pdev); 7852 break; 7853 case LPFC_PCI_DEV_OC: 7854 rc = lpfc_io_slot_reset_s4(pdev); 7855 break; 7856 default: 7857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7858 "1428 Invalid PCI device group: 0x%x\n", 7859 phba->pci_dev_grp); 7860 break; 7861 } 7862 return rc; 7863 } 7864 7865 /** 7866 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 7867 * @pdev: pointer to PCI device 7868 * 7869 * This routine is registered to the PCI subsystem for error handling. It 7870 * is called when kernel error recovery tells the lpfc driver that it is 7871 * OK to resume normal PCI operation after PCI bus error recovery. When 7872 * this routine is invoked, it dispatches the action to the proper SLI-3 7873 * or SLI-4 device io_resume routine, which will resume the device operation. 7874 **/ 7875 static void 7876 lpfc_io_resume(struct pci_dev *pdev) 7877 { 7878 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7879 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7880 7881 switch (phba->pci_dev_grp) { 7882 case LPFC_PCI_DEV_LP: 7883 lpfc_io_resume_s3(pdev); 7884 break; 7885 case LPFC_PCI_DEV_OC: 7886 lpfc_io_resume_s4(pdev); 7887 break; 7888 default: 7889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7890 "1429 Invalid PCI device group: 0x%x\n", 7891 phba->pci_dev_grp); 7892 break; 7893 } 7894 return; 7895 } 7896 7897 static struct pci_device_id lpfc_id_table[] = { 7898 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 7899 PCI_ANY_ID, PCI_ANY_ID, }, 7900 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 7901 PCI_ANY_ID, PCI_ANY_ID, }, 7902 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 7903 PCI_ANY_ID, PCI_ANY_ID, }, 7904 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 7905 PCI_ANY_ID, PCI_ANY_ID, }, 7906 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 7907 PCI_ANY_ID, PCI_ANY_ID, }, 7908 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 7909 PCI_ANY_ID, PCI_ANY_ID, }, 7910 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 7911 PCI_ANY_ID, PCI_ANY_ID, }, 7912 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 7913 PCI_ANY_ID, PCI_ANY_ID, }, 7914 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 7915 PCI_ANY_ID, PCI_ANY_ID, }, 7916 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 7917 PCI_ANY_ID, PCI_ANY_ID, }, 7918 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 7919 PCI_ANY_ID, PCI_ANY_ID, }, 7920 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 7921 PCI_ANY_ID, PCI_ANY_ID, }, 7922 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 7923 PCI_ANY_ID, PCI_ANY_ID, }, 7924 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 7925 PCI_ANY_ID, PCI_ANY_ID, }, 7926 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 7927 PCI_ANY_ID, PCI_ANY_ID, }, 7928 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 7929 PCI_ANY_ID, PCI_ANY_ID, }, 7930 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 7931 PCI_ANY_ID, PCI_ANY_ID, }, 7932 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 7933 PCI_ANY_ID, PCI_ANY_ID, }, 7934 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 7935 PCI_ANY_ID, PCI_ANY_ID, }, 7936 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 7937 PCI_ANY_ID, PCI_ANY_ID, }, 7938 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 7939 PCI_ANY_ID, PCI_ANY_ID, }, 7940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 7941 PCI_ANY_ID, PCI_ANY_ID, }, 7942 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 7943 PCI_ANY_ID, PCI_ANY_ID, }, 7944 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 7945 PCI_ANY_ID, PCI_ANY_ID, }, 7946 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 7947 PCI_ANY_ID, PCI_ANY_ID, }, 7948 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 7949 PCI_ANY_ID, PCI_ANY_ID, }, 7950 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 7951 PCI_ANY_ID, PCI_ANY_ID, }, 7952 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 7953 PCI_ANY_ID, PCI_ANY_ID, }, 7954 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 7955 PCI_ANY_ID, PCI_ANY_ID, }, 7956 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 7957 PCI_ANY_ID, PCI_ANY_ID, }, 7958 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 7959 PCI_ANY_ID, PCI_ANY_ID, }, 7960 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 7961 PCI_ANY_ID, PCI_ANY_ID, }, 7962 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 7963 PCI_ANY_ID, PCI_ANY_ID, }, 7964 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 7965 PCI_ANY_ID, PCI_ANY_ID, }, 7966 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 7967 PCI_ANY_ID, PCI_ANY_ID, }, 7968 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 7969 PCI_ANY_ID, PCI_ANY_ID, }, 7970 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 7971 PCI_ANY_ID, PCI_ANY_ID, }, 7972 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 7973 PCI_ANY_ID, PCI_ANY_ID, }, 7974 { 0 } 7975 }; 7976 7977 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 7978 7979 static struct pci_error_handlers lpfc_err_handler = { 7980 .error_detected = lpfc_io_error_detected, 7981 .slot_reset = lpfc_io_slot_reset, 7982 .resume = lpfc_io_resume, 7983 }; 7984 7985 static struct pci_driver lpfc_driver = { 7986 .name = LPFC_DRIVER_NAME, 7987 .id_table = lpfc_id_table, 7988 .probe = lpfc_pci_probe_one, 7989 .remove = __devexit_p(lpfc_pci_remove_one), 7990 .suspend = lpfc_pci_suspend_one, 7991 .resume = lpfc_pci_resume_one, 7992 .err_handler = &lpfc_err_handler, 7993 }; 7994 7995 /** 7996 * lpfc_init - lpfc module initialization routine 7997 * 7998 * This routine is to be invoked when the lpfc module is loaded into the 7999 * kernel. The special kernel macro module_init() is used to indicate the 8000 * role of this routine to the kernel as lpfc module entry point. 8001 * 8002 * Return codes 8003 * 0 - successful 8004 * -ENOMEM - FC attach transport failed 8005 * all others - failed 8006 */ 8007 static int __init 8008 lpfc_init(void) 8009 { 8010 int error = 0; 8011 8012 printk(LPFC_MODULE_DESC "\n"); 8013 printk(LPFC_COPYRIGHT "\n"); 8014 8015 if (lpfc_enable_npiv) { 8016 lpfc_transport_functions.vport_create = lpfc_vport_create; 8017 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 8018 } 8019 lpfc_transport_template = 8020 fc_attach_transport(&lpfc_transport_functions); 8021 if (lpfc_transport_template == NULL) 8022 return -ENOMEM; 8023 if (lpfc_enable_npiv) { 8024 lpfc_vport_transport_template = 8025 fc_attach_transport(&lpfc_vport_transport_functions); 8026 if (lpfc_vport_transport_template == NULL) { 8027 fc_release_transport(lpfc_transport_template); 8028 return -ENOMEM; 8029 } 8030 } 8031 error = pci_register_driver(&lpfc_driver); 8032 if (error) { 8033 fc_release_transport(lpfc_transport_template); 8034 if (lpfc_enable_npiv) 8035 fc_release_transport(lpfc_vport_transport_template); 8036 } 8037 8038 return error; 8039 } 8040 8041 /** 8042 * lpfc_exit - lpfc module removal routine 8043 * 8044 * This routine is invoked when the lpfc module is removed from the kernel. 8045 * The special kernel macro module_exit() is used to indicate the role of 8046 * this routine to the kernel as lpfc module exit point. 8047 */ 8048 static void __exit 8049 lpfc_exit(void) 8050 { 8051 pci_unregister_driver(&lpfc_driver); 8052 fc_release_transport(lpfc_transport_template); 8053 if (lpfc_enable_npiv) 8054 fc_release_transport(lpfc_vport_transport_template); 8055 if (_dump_buf_data) { 8056 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_data " 8057 "at 0x%p\n", 8058 (1L << _dump_buf_data_order), _dump_buf_data); 8059 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 8060 } 8061 8062 if (_dump_buf_dif) { 8063 printk(KERN_ERR "BLKGRD freeing %lu pages for _dump_buf_dif " 8064 "at 0x%p\n", 8065 (1L << _dump_buf_dif_order), _dump_buf_dif); 8066 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 8067 } 8068 } 8069 8070 module_init(lpfc_init); 8071 module_exit(lpfc_exit); 8072 MODULE_LICENSE("GPL"); 8073 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 8074 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 8075 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 8076