1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2011 Emulex. All rights reserved. * 5 * EMULEX and SLI are trademarks of Emulex. * 6 * www.emulex.com * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 8 * * 9 * This program is free software; you can redistribute it and/or * 10 * modify it under the terms of version 2 of the GNU General * 11 * Public License as published by the Free Software Foundation. * 12 * This program is distributed in the hope that it will be useful. * 13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 17 * TO BE LEGALLY INVALID. See the GNU General Public License for * 18 * more details, a copy of which can be found in the file COPYING * 19 * included with this package. * 20 *******************************************************************/ 21 22 #include <linux/blkdev.h> 23 #include <linux/delay.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/idr.h> 26 #include <linux/interrupt.h> 27 #include <linux/kthread.h> 28 #include <linux/pci.h> 29 #include <linux/spinlock.h> 30 #include <linux/ctype.h> 31 #include <linux/aer.h> 32 #include <linux/slab.h> 33 #include <linux/firmware.h> 34 35 #include <scsi/scsi.h> 36 #include <scsi/scsi_device.h> 37 #include <scsi/scsi_host.h> 38 #include <scsi/scsi_transport_fc.h> 39 40 #include "lpfc_hw4.h" 41 #include "lpfc_hw.h" 42 #include "lpfc_sli.h" 43 #include "lpfc_sli4.h" 44 #include "lpfc_nl.h" 45 #include "lpfc_disc.h" 46 #include "lpfc_scsi.h" 47 #include "lpfc.h" 48 #include "lpfc_logmsg.h" 49 #include "lpfc_crtn.h" 50 #include "lpfc_vport.h" 51 #include "lpfc_version.h" 52 53 char *_dump_buf_data; 54 unsigned long _dump_buf_data_order; 55 char *_dump_buf_dif; 56 unsigned long _dump_buf_dif_order; 57 spinlock_t _dump_buf_lock; 58 59 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 60 static int lpfc_post_rcv_buf(struct lpfc_hba *); 61 static int lpfc_sli4_queue_create(struct lpfc_hba *); 62 static void lpfc_sli4_queue_destroy(struct lpfc_hba *); 63 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 64 static int lpfc_setup_endian_order(struct lpfc_hba *); 65 static int lpfc_sli4_read_config(struct lpfc_hba *); 66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 67 static void lpfc_free_sgl_list(struct lpfc_hba *); 68 static int lpfc_init_sgl_list(struct lpfc_hba *); 69 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 70 static void lpfc_free_active_sgl(struct lpfc_hba *); 71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 76 77 static struct scsi_transport_template *lpfc_transport_template = NULL; 78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 79 static DEFINE_IDR(lpfc_hba_index); 80 81 /** 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 83 * @phba: pointer to lpfc hba data structure. 84 * 85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 86 * mailbox command. It retrieves the revision information from the HBA and 87 * collects the Vital Product Data (VPD) about the HBA for preparing the 88 * configuration of the HBA. 89 * 90 * Return codes: 91 * 0 - success. 92 * -ERESTART - requests the SLI layer to reset the HBA and try again. 93 * Any other value - indicates an error. 94 **/ 95 int 96 lpfc_config_port_prep(struct lpfc_hba *phba) 97 { 98 lpfc_vpd_t *vp = &phba->vpd; 99 int i = 0, rc; 100 LPFC_MBOXQ_t *pmb; 101 MAILBOX_t *mb; 102 char *lpfc_vpd_data = NULL; 103 uint16_t offset = 0; 104 static char licensed[56] = 105 "key unlock for use with gnu public licensed code only\0"; 106 static int init_key = 1; 107 108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 109 if (!pmb) { 110 phba->link_state = LPFC_HBA_ERROR; 111 return -ENOMEM; 112 } 113 114 mb = &pmb->u.mb; 115 phba->link_state = LPFC_INIT_MBX_CMDS; 116 117 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 118 if (init_key) { 119 uint32_t *ptext = (uint32_t *) licensed; 120 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 122 *ptext = cpu_to_be32(*ptext); 123 init_key = 0; 124 } 125 126 lpfc_read_nv(phba, pmb); 127 memset((char*)mb->un.varRDnvp.rsvd3, 0, 128 sizeof (mb->un.varRDnvp.rsvd3)); 129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 130 sizeof (licensed)); 131 132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 133 134 if (rc != MBX_SUCCESS) { 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 136 "0324 Config Port initialization " 137 "error, mbxCmd x%x READ_NVPARM, " 138 "mbxStatus x%x\n", 139 mb->mbxCommand, mb->mbxStatus); 140 mempool_free(pmb, phba->mbox_mem_pool); 141 return -ERESTART; 142 } 143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 144 sizeof(phba->wwnn)); 145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 146 sizeof(phba->wwpn)); 147 } 148 149 phba->sli3_options = 0x0; 150 151 /* Setup and issue mailbox READ REV command */ 152 lpfc_read_rev(phba, pmb); 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 156 "0439 Adapter failed to init, mbxCmd x%x " 157 "READ_REV, mbxStatus x%x\n", 158 mb->mbxCommand, mb->mbxStatus); 159 mempool_free( pmb, phba->mbox_mem_pool); 160 return -ERESTART; 161 } 162 163 164 /* 165 * The value of rr must be 1 since the driver set the cv field to 1. 166 * This setting requires the FW to set all revision fields. 167 */ 168 if (mb->un.varRdRev.rr == 0) { 169 vp->rev.rBit = 0; 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0440 Adapter failed to init, READ_REV has " 172 "missing revision information.\n"); 173 mempool_free(pmb, phba->mbox_mem_pool); 174 return -ERESTART; 175 } 176 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 178 mempool_free(pmb, phba->mbox_mem_pool); 179 return -EINVAL; 180 } 181 182 /* Save information as VPD data */ 183 vp->rev.rBit = 1; 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 189 vp->rev.biuRev = mb->un.varRdRev.biuRev; 190 vp->rev.smRev = mb->un.varRdRev.smRev; 191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 192 vp->rev.endecRev = mb->un.varRdRev.endecRev; 193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 199 200 /* If the sli feature level is less then 9, we must 201 * tear down all RPIs and VPIs on link down if NPIV 202 * is enabled. 203 */ 204 if (vp->rev.feaLevelHigh < 9) 205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 206 207 if (lpfc_is_LC_HBA(phba->pcidev->device)) 208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 209 sizeof (phba->RandomData)); 210 211 /* Get adapter VPD information */ 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 213 if (!lpfc_vpd_data) 214 goto out_free_mbox; 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241 out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244 } 245 246 /** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256 static void 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258 { 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265 } 266 267 /** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277 static void 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279 { 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309 } 310 311 /** 312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 313 * cfg_soft_wwnn, cfg_soft_wwpn 314 * @vport: pointer to lpfc vport data structure. 315 * 316 * 317 * Return codes 318 * None. 319 **/ 320 void 321 lpfc_update_vport_wwn(struct lpfc_vport *vport) 322 { 323 /* If the soft name exists then update it using the service params */ 324 if (vport->phba->cfg_soft_wwnn) 325 u64_to_wwn(vport->phba->cfg_soft_wwnn, 326 vport->fc_sparam.nodeName.u.wwn); 327 if (vport->phba->cfg_soft_wwpn) 328 u64_to_wwn(vport->phba->cfg_soft_wwpn, 329 vport->fc_sparam.portName.u.wwn); 330 331 /* 332 * If the name is empty or there exists a soft name 333 * then copy the service params name, otherwise use the fc name 334 */ 335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 337 sizeof(struct lpfc_name)); 338 else 339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 340 sizeof(struct lpfc_name)); 341 342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 347 sizeof(struct lpfc_name)); 348 } 349 350 /** 351 * lpfc_config_port_post - Perform lpfc initialization after config port 352 * @phba: pointer to lpfc hba data structure. 353 * 354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 355 * command call. It performs all internal resource and state setups on the 356 * port: post IOCB buffers, enable appropriate host interrupt attentions, 357 * ELS ring timers, etc. 358 * 359 * Return codes 360 * 0 - success. 361 * Any other value - error. 362 **/ 363 int 364 lpfc_config_port_post(struct lpfc_hba *phba) 365 { 366 struct lpfc_vport *vport = phba->pport; 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 368 LPFC_MBOXQ_t *pmb; 369 MAILBOX_t *mb; 370 struct lpfc_dmabuf *mp; 371 struct lpfc_sli *psli = &phba->sli; 372 uint32_t status, timeout; 373 int i, j; 374 int rc; 375 376 spin_lock_irq(&phba->hbalock); 377 /* 378 * If the Config port completed correctly the HBA is not 379 * over heated any more. 380 */ 381 if (phba->over_temp_state == HBA_OVER_TEMP) 382 phba->over_temp_state = HBA_NORMAL_TEMP; 383 spin_unlock_irq(&phba->hbalock); 384 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 386 if (!pmb) { 387 phba->link_state = LPFC_HBA_ERROR; 388 return -ENOMEM; 389 } 390 mb = &pmb->u.mb; 391 392 /* Get login parameters for NID. */ 393 rc = lpfc_read_sparam(phba, pmb, 0); 394 if (rc) { 395 mempool_free(pmb, phba->mbox_mem_pool); 396 return -ENOMEM; 397 } 398 399 pmb->vport = vport; 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 402 "0448 Adapter failed init, mbxCmd x%x " 403 "READ_SPARM mbxStatus x%x\n", 404 mb->mbxCommand, mb->mbxStatus); 405 phba->link_state = LPFC_HBA_ERROR; 406 mp = (struct lpfc_dmabuf *) pmb->context1; 407 mempool_free(pmb, phba->mbox_mem_pool); 408 lpfc_mbuf_free(phba, mp->virt, mp->phys); 409 kfree(mp); 410 return -EIO; 411 } 412 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 pmb->context1 = NULL; 419 lpfc_update_vport_wwn(vport); 420 421 /* Update the fc_host data structures with new wwn. */ 422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 424 fc_host_max_npiv_vports(shost) = phba->max_vpi; 425 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 427 /* This should be consolidated into parse_vpd ? - mr */ 428 if (phba->SerialNumber[0] == 0) { 429 uint8_t *outptr; 430 431 outptr = &vport->fc_nodename.u.s.IEEE[0]; 432 for (i = 0; i < 12; i++) { 433 status = *outptr++; 434 j = ((status & 0xf0) >> 4); 435 if (j <= 9) 436 phba->SerialNumber[i] = 437 (char)((uint8_t) 0x30 + (uint8_t) j); 438 else 439 phba->SerialNumber[i] = 440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 441 i++; 442 j = (status & 0xf); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 } 450 } 451 452 lpfc_read_config(phba, pmb); 453 pmb->vport = vport; 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 456 "0453 Adapter failed to init, mbxCmd x%x " 457 "READ_CONFIG, mbxStatus x%x\n", 458 mb->mbxCommand, mb->mbxStatus); 459 phba->link_state = LPFC_HBA_ERROR; 460 mempool_free( pmb, phba->mbox_mem_pool); 461 return -EIO; 462 } 463 464 /* Check if the port is disabled */ 465 lpfc_sli_read_link_ste(phba); 466 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 469 phba->cfg_hba_queue_depth = 470 (mb->un.varRdConfig.max_xri + 1) - 471 lpfc_sli4_get_els_iocb_cnt(phba); 472 473 phba->lmt = mb->un.varRdConfig.lmt; 474 475 /* Get the default values for Model Name and Description */ 476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 477 478 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G) 479 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) 480 && !(phba->lmt & LMT_1Gb)) 481 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) 482 && !(phba->lmt & LMT_2Gb)) 483 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) 484 && !(phba->lmt & LMT_4Gb)) 485 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) 486 && !(phba->lmt & LMT_8Gb)) 487 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) 488 && !(phba->lmt & LMT_10Gb)) 489 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) 490 && !(phba->lmt & LMT_16Gb))) { 491 /* Reset link speed to auto */ 492 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 493 "1302 Invalid speed for this board: " 494 "Reset link speed to auto: x%x\n", 495 phba->cfg_link_speed); 496 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 497 } 498 499 phba->link_state = LPFC_LINK_DOWN; 500 501 /* Only process IOCBs on ELS ring till hba_state is READY */ 502 if (psli->ring[psli->extra_ring].cmdringaddr) 503 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 504 if (psli->ring[psli->fcp_ring].cmdringaddr) 505 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 506 if (psli->ring[psli->next_ring].cmdringaddr) 507 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 508 509 /* Post receive buffers for desired rings */ 510 if (phba->sli_rev != 3) 511 lpfc_post_rcv_buf(phba); 512 513 /* 514 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 515 */ 516 if (phba->intr_type == MSIX) { 517 rc = lpfc_config_msi(phba, pmb); 518 if (rc) { 519 mempool_free(pmb, phba->mbox_mem_pool); 520 return -EIO; 521 } 522 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 523 if (rc != MBX_SUCCESS) { 524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 525 "0352 Config MSI mailbox command " 526 "failed, mbxCmd x%x, mbxStatus x%x\n", 527 pmb->u.mb.mbxCommand, 528 pmb->u.mb.mbxStatus); 529 mempool_free(pmb, phba->mbox_mem_pool); 530 return -EIO; 531 } 532 } 533 534 spin_lock_irq(&phba->hbalock); 535 /* Initialize ERATT handling flag */ 536 phba->hba_flag &= ~HBA_ERATT_HANDLED; 537 538 /* Enable appropriate host interrupts */ 539 if (lpfc_readl(phba->HCregaddr, &status)) { 540 spin_unlock_irq(&phba->hbalock); 541 return -EIO; 542 } 543 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 544 if (psli->num_rings > 0) 545 status |= HC_R0INT_ENA; 546 if (psli->num_rings > 1) 547 status |= HC_R1INT_ENA; 548 if (psli->num_rings > 2) 549 status |= HC_R2INT_ENA; 550 if (psli->num_rings > 3) 551 status |= HC_R3INT_ENA; 552 553 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 554 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 555 status &= ~(HC_R0INT_ENA); 556 557 writel(status, phba->HCregaddr); 558 readl(phba->HCregaddr); /* flush */ 559 spin_unlock_irq(&phba->hbalock); 560 561 /* Set up ring-0 (ELS) timer */ 562 timeout = phba->fc_ratov * 2; 563 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 564 /* Set up heart beat (HB) timer */ 565 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 566 phba->hb_outstanding = 0; 567 phba->last_completion_time = jiffies; 568 /* Set up error attention (ERATT) polling timer */ 569 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 570 571 if (phba->hba_flag & LINK_DISABLED) { 572 lpfc_printf_log(phba, 573 KERN_ERR, LOG_INIT, 574 "2598 Adapter Link is disabled.\n"); 575 lpfc_down_link(phba, pmb); 576 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 577 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 578 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 579 lpfc_printf_log(phba, 580 KERN_ERR, LOG_INIT, 581 "2599 Adapter failed to issue DOWN_LINK" 582 " mbox command rc 0x%x\n", rc); 583 584 mempool_free(pmb, phba->mbox_mem_pool); 585 return -EIO; 586 } 587 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 588 lpfc_init_link(phba, pmb, phba->cfg_topology, 589 phba->cfg_link_speed); 590 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 591 lpfc_set_loopback_flag(phba); 592 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 593 if (rc != MBX_SUCCESS) { 594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 595 "0454 Adapter failed to init, mbxCmd x%x " 596 "INIT_LINK, mbxStatus x%x\n", 597 mb->mbxCommand, mb->mbxStatus); 598 599 /* Clear all interrupt enable conditions */ 600 writel(0, phba->HCregaddr); 601 readl(phba->HCregaddr); /* flush */ 602 /* Clear all pending interrupts */ 603 writel(0xffffffff, phba->HAregaddr); 604 readl(phba->HAregaddr); /* flush */ 605 phba->link_state = LPFC_HBA_ERROR; 606 if (rc != MBX_BUSY) 607 mempool_free(pmb, phba->mbox_mem_pool); 608 return -EIO; 609 } 610 } 611 /* MBOX buffer will be freed in mbox compl */ 612 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 613 if (!pmb) { 614 phba->link_state = LPFC_HBA_ERROR; 615 return -ENOMEM; 616 } 617 618 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 619 pmb->mbox_cmpl = lpfc_config_async_cmpl; 620 pmb->vport = phba->pport; 621 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 622 623 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 624 lpfc_printf_log(phba, 625 KERN_ERR, 626 LOG_INIT, 627 "0456 Adapter failed to issue " 628 "ASYNCEVT_ENABLE mbox status x%x\n", 629 rc); 630 mempool_free(pmb, phba->mbox_mem_pool); 631 } 632 633 /* Get Option rom version */ 634 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 635 if (!pmb) { 636 phba->link_state = LPFC_HBA_ERROR; 637 return -ENOMEM; 638 } 639 640 lpfc_dump_wakeup_param(phba, pmb); 641 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 642 pmb->vport = phba->pport; 643 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 644 645 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 647 "to get Option ROM version status x%x\n", rc); 648 mempool_free(pmb, phba->mbox_mem_pool); 649 } 650 651 return 0; 652 } 653 654 /** 655 * lpfc_hba_init_link - Initialize the FC link 656 * @phba: pointer to lpfc hba data structure. 657 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 658 * 659 * This routine will issue the INIT_LINK mailbox command call. 660 * It is available to other drivers through the lpfc_hba data 661 * structure for use as a delayed link up mechanism with the 662 * module parameter lpfc_suppress_link_up. 663 * 664 * Return code 665 * 0 - success 666 * Any other value - error 667 **/ 668 int 669 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 670 { 671 struct lpfc_vport *vport = phba->pport; 672 LPFC_MBOXQ_t *pmb; 673 MAILBOX_t *mb; 674 int rc; 675 676 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 677 if (!pmb) { 678 phba->link_state = LPFC_HBA_ERROR; 679 return -ENOMEM; 680 } 681 mb = &pmb->u.mb; 682 pmb->vport = vport; 683 684 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 685 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 686 lpfc_set_loopback_flag(phba); 687 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 688 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 689 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 690 "0498 Adapter failed to init, mbxCmd x%x " 691 "INIT_LINK, mbxStatus x%x\n", 692 mb->mbxCommand, mb->mbxStatus); 693 if (phba->sli_rev <= LPFC_SLI_REV3) { 694 /* Clear all interrupt enable conditions */ 695 writel(0, phba->HCregaddr); 696 readl(phba->HCregaddr); /* flush */ 697 /* Clear all pending interrupts */ 698 writel(0xffffffff, phba->HAregaddr); 699 readl(phba->HAregaddr); /* flush */ 700 } 701 phba->link_state = LPFC_HBA_ERROR; 702 if (rc != MBX_BUSY || flag == MBX_POLL) 703 mempool_free(pmb, phba->mbox_mem_pool); 704 return -EIO; 705 } 706 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 707 if (flag == MBX_POLL) 708 mempool_free(pmb, phba->mbox_mem_pool); 709 710 return 0; 711 } 712 713 /** 714 * lpfc_hba_down_link - this routine downs the FC link 715 * @phba: pointer to lpfc hba data structure. 716 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 717 * 718 * This routine will issue the DOWN_LINK mailbox command call. 719 * It is available to other drivers through the lpfc_hba data 720 * structure for use to stop the link. 721 * 722 * Return code 723 * 0 - success 724 * Any other value - error 725 **/ 726 int 727 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 728 { 729 LPFC_MBOXQ_t *pmb; 730 int rc; 731 732 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 733 if (!pmb) { 734 phba->link_state = LPFC_HBA_ERROR; 735 return -ENOMEM; 736 } 737 738 lpfc_printf_log(phba, 739 KERN_ERR, LOG_INIT, 740 "0491 Adapter Link is disabled.\n"); 741 lpfc_down_link(phba, pmb); 742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 743 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 744 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 745 lpfc_printf_log(phba, 746 KERN_ERR, LOG_INIT, 747 "2522 Adapter failed to issue DOWN_LINK" 748 " mbox command rc 0x%x\n", rc); 749 750 mempool_free(pmb, phba->mbox_mem_pool); 751 return -EIO; 752 } 753 if (flag == MBX_POLL) 754 mempool_free(pmb, phba->mbox_mem_pool); 755 756 return 0; 757 } 758 759 /** 760 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 761 * @phba: pointer to lpfc HBA data structure. 762 * 763 * This routine will do LPFC uninitialization before the HBA is reset when 764 * bringing down the SLI Layer. 765 * 766 * Return codes 767 * 0 - success. 768 * Any other value - error. 769 **/ 770 int 771 lpfc_hba_down_prep(struct lpfc_hba *phba) 772 { 773 struct lpfc_vport **vports; 774 int i; 775 776 if (phba->sli_rev <= LPFC_SLI_REV3) { 777 /* Disable interrupts */ 778 writel(0, phba->HCregaddr); 779 readl(phba->HCregaddr); /* flush */ 780 } 781 782 if (phba->pport->load_flag & FC_UNLOADING) 783 lpfc_cleanup_discovery_resources(phba->pport); 784 else { 785 vports = lpfc_create_vport_work_array(phba); 786 if (vports != NULL) 787 for (i = 0; i <= phba->max_vports && 788 vports[i] != NULL; i++) 789 lpfc_cleanup_discovery_resources(vports[i]); 790 lpfc_destroy_vport_work_array(phba, vports); 791 } 792 return 0; 793 } 794 795 /** 796 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 797 * @phba: pointer to lpfc HBA data structure. 798 * 799 * This routine will do uninitialization after the HBA is reset when bring 800 * down the SLI Layer. 801 * 802 * Return codes 803 * 0 - success. 804 * Any other value - error. 805 **/ 806 static int 807 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 808 { 809 struct lpfc_sli *psli = &phba->sli; 810 struct lpfc_sli_ring *pring; 811 struct lpfc_dmabuf *mp, *next_mp; 812 LIST_HEAD(completions); 813 int i; 814 815 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 816 lpfc_sli_hbqbuf_free_all(phba); 817 else { 818 /* Cleanup preposted buffers on the ELS ring */ 819 pring = &psli->ring[LPFC_ELS_RING]; 820 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 821 list_del(&mp->list); 822 pring->postbufq_cnt--; 823 lpfc_mbuf_free(phba, mp->virt, mp->phys); 824 kfree(mp); 825 } 826 } 827 828 spin_lock_irq(&phba->hbalock); 829 for (i = 0; i < psli->num_rings; i++) { 830 pring = &psli->ring[i]; 831 832 /* At this point in time the HBA is either reset or DOA. Either 833 * way, nothing should be on txcmplq as it will NEVER complete. 834 */ 835 list_splice_init(&pring->txcmplq, &completions); 836 pring->txcmplq_cnt = 0; 837 spin_unlock_irq(&phba->hbalock); 838 839 /* Cancel all the IOCBs from the completions list */ 840 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 841 IOERR_SLI_ABORTED); 842 843 lpfc_sli_abort_iocb_ring(phba, pring); 844 spin_lock_irq(&phba->hbalock); 845 } 846 spin_unlock_irq(&phba->hbalock); 847 848 return 0; 849 } 850 851 /** 852 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 853 * @phba: pointer to lpfc HBA data structure. 854 * 855 * This routine will do uninitialization after the HBA is reset when bring 856 * down the SLI Layer. 857 * 858 * Return codes 859 * 0 - success. 860 * Any other value - error. 861 **/ 862 static int 863 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 864 { 865 struct lpfc_scsi_buf *psb, *psb_next; 866 LIST_HEAD(aborts); 867 int ret; 868 unsigned long iflag = 0; 869 struct lpfc_sglq *sglq_entry = NULL; 870 871 ret = lpfc_hba_down_post_s3(phba); 872 if (ret) 873 return ret; 874 /* At this point in time the HBA is either reset or DOA. Either 875 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 876 * on the lpfc_sgl_list so that it can either be freed if the 877 * driver is unloading or reposted if the driver is restarting 878 * the port. 879 */ 880 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 881 /* scsl_buf_list */ 882 /* abts_sgl_list_lock required because worker thread uses this 883 * list. 884 */ 885 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 886 list_for_each_entry(sglq_entry, 887 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 888 sglq_entry->state = SGL_FREED; 889 890 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 891 &phba->sli4_hba.lpfc_sgl_list); 892 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 893 /* abts_scsi_buf_list_lock required because worker thread uses this 894 * list. 895 */ 896 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 897 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 898 &aborts); 899 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 900 spin_unlock_irq(&phba->hbalock); 901 902 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 903 psb->pCmd = NULL; 904 psb->status = IOSTAT_SUCCESS; 905 } 906 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 907 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 908 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 909 return 0; 910 } 911 912 /** 913 * lpfc_hba_down_post - Wrapper func for hba down post routine 914 * @phba: pointer to lpfc HBA data structure. 915 * 916 * This routine wraps the actual SLI3 or SLI4 routine for performing 917 * uninitialization after the HBA is reset when bring down the SLI Layer. 918 * 919 * Return codes 920 * 0 - success. 921 * Any other value - error. 922 **/ 923 int 924 lpfc_hba_down_post(struct lpfc_hba *phba) 925 { 926 return (*phba->lpfc_hba_down_post)(phba); 927 } 928 929 /** 930 * lpfc_hb_timeout - The HBA-timer timeout handler 931 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 932 * 933 * This is the HBA-timer timeout handler registered to the lpfc driver. When 934 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 935 * work-port-events bitmap and the worker thread is notified. This timeout 936 * event will be used by the worker thread to invoke the actual timeout 937 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 938 * be performed in the timeout handler and the HBA timeout event bit shall 939 * be cleared by the worker thread after it has taken the event bitmap out. 940 **/ 941 static void 942 lpfc_hb_timeout(unsigned long ptr) 943 { 944 struct lpfc_hba *phba; 945 uint32_t tmo_posted; 946 unsigned long iflag; 947 948 phba = (struct lpfc_hba *)ptr; 949 950 /* Check for heart beat timeout conditions */ 951 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 952 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 953 if (!tmo_posted) 954 phba->pport->work_port_events |= WORKER_HB_TMO; 955 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 956 957 /* Tell the worker thread there is work to do */ 958 if (!tmo_posted) 959 lpfc_worker_wake_up(phba); 960 return; 961 } 962 963 /** 964 * lpfc_rrq_timeout - The RRQ-timer timeout handler 965 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 966 * 967 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 968 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 969 * work-port-events bitmap and the worker thread is notified. This timeout 970 * event will be used by the worker thread to invoke the actual timeout 971 * handler routine, lpfc_rrq_handler. Any periodical operations will 972 * be performed in the timeout handler and the RRQ timeout event bit shall 973 * be cleared by the worker thread after it has taken the event bitmap out. 974 **/ 975 static void 976 lpfc_rrq_timeout(unsigned long ptr) 977 { 978 struct lpfc_hba *phba; 979 unsigned long iflag; 980 981 phba = (struct lpfc_hba *)ptr; 982 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 983 phba->hba_flag |= HBA_RRQ_ACTIVE; 984 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 985 lpfc_worker_wake_up(phba); 986 } 987 988 /** 989 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 990 * @phba: pointer to lpfc hba data structure. 991 * @pmboxq: pointer to the driver internal queue element for mailbox command. 992 * 993 * This is the callback function to the lpfc heart-beat mailbox command. 994 * If configured, the lpfc driver issues the heart-beat mailbox command to 995 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 996 * heart-beat mailbox command is issued, the driver shall set up heart-beat 997 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 998 * heart-beat outstanding state. Once the mailbox command comes back and 999 * no error conditions detected, the heart-beat mailbox command timer is 1000 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1001 * state is cleared for the next heart-beat. If the timer expired with the 1002 * heart-beat outstanding state set, the driver will put the HBA offline. 1003 **/ 1004 static void 1005 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1006 { 1007 unsigned long drvr_flag; 1008 1009 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1010 phba->hb_outstanding = 0; 1011 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1012 1013 /* Check and reset heart-beat timer is necessary */ 1014 mempool_free(pmboxq, phba->mbox_mem_pool); 1015 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1016 !(phba->link_state == LPFC_HBA_ERROR) && 1017 !(phba->pport->load_flag & FC_UNLOADING)) 1018 mod_timer(&phba->hb_tmofunc, 1019 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1020 return; 1021 } 1022 1023 /** 1024 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1025 * @phba: pointer to lpfc hba data structure. 1026 * 1027 * This is the actual HBA-timer timeout handler to be invoked by the worker 1028 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1029 * handler performs any periodic operations needed for the device. If such 1030 * periodic event has already been attended to either in the interrupt handler 1031 * or by processing slow-ring or fast-ring events within the HBA-timer 1032 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1033 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1034 * is configured and there is no heart-beat mailbox command outstanding, a 1035 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1036 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1037 * to offline. 1038 **/ 1039 void 1040 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1041 { 1042 struct lpfc_vport **vports; 1043 LPFC_MBOXQ_t *pmboxq; 1044 struct lpfc_dmabuf *buf_ptr; 1045 int retval, i; 1046 struct lpfc_sli *psli = &phba->sli; 1047 LIST_HEAD(completions); 1048 1049 vports = lpfc_create_vport_work_array(phba); 1050 if (vports != NULL) 1051 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1052 lpfc_rcv_seq_check_edtov(vports[i]); 1053 lpfc_destroy_vport_work_array(phba, vports); 1054 1055 if ((phba->link_state == LPFC_HBA_ERROR) || 1056 (phba->pport->load_flag & FC_UNLOADING) || 1057 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1058 return; 1059 1060 spin_lock_irq(&phba->pport->work_port_lock); 1061 1062 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1063 jiffies)) { 1064 spin_unlock_irq(&phba->pport->work_port_lock); 1065 if (!phba->hb_outstanding) 1066 mod_timer(&phba->hb_tmofunc, 1067 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1068 else 1069 mod_timer(&phba->hb_tmofunc, 1070 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1071 return; 1072 } 1073 spin_unlock_irq(&phba->pport->work_port_lock); 1074 1075 if (phba->elsbuf_cnt && 1076 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1077 spin_lock_irq(&phba->hbalock); 1078 list_splice_init(&phba->elsbuf, &completions); 1079 phba->elsbuf_cnt = 0; 1080 phba->elsbuf_prev_cnt = 0; 1081 spin_unlock_irq(&phba->hbalock); 1082 1083 while (!list_empty(&completions)) { 1084 list_remove_head(&completions, buf_ptr, 1085 struct lpfc_dmabuf, list); 1086 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1087 kfree(buf_ptr); 1088 } 1089 } 1090 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1091 1092 /* If there is no heart beat outstanding, issue a heartbeat command */ 1093 if (phba->cfg_enable_hba_heartbeat) { 1094 if (!phba->hb_outstanding) { 1095 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1096 (list_empty(&psli->mboxq))) { 1097 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1098 GFP_KERNEL); 1099 if (!pmboxq) { 1100 mod_timer(&phba->hb_tmofunc, 1101 jiffies + 1102 HZ * LPFC_HB_MBOX_INTERVAL); 1103 return; 1104 } 1105 1106 lpfc_heart_beat(phba, pmboxq); 1107 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1108 pmboxq->vport = phba->pport; 1109 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1110 MBX_NOWAIT); 1111 1112 if (retval != MBX_BUSY && 1113 retval != MBX_SUCCESS) { 1114 mempool_free(pmboxq, 1115 phba->mbox_mem_pool); 1116 mod_timer(&phba->hb_tmofunc, 1117 jiffies + 1118 HZ * LPFC_HB_MBOX_INTERVAL); 1119 return; 1120 } 1121 phba->skipped_hb = 0; 1122 phba->hb_outstanding = 1; 1123 } else if (time_before_eq(phba->last_completion_time, 1124 phba->skipped_hb)) { 1125 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1126 "2857 Last completion time not " 1127 " updated in %d ms\n", 1128 jiffies_to_msecs(jiffies 1129 - phba->last_completion_time)); 1130 } else 1131 phba->skipped_hb = jiffies; 1132 1133 mod_timer(&phba->hb_tmofunc, 1134 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1135 return; 1136 } else { 1137 /* 1138 * If heart beat timeout called with hb_outstanding set 1139 * we need to give the hb mailbox cmd a chance to 1140 * complete or TMO. 1141 */ 1142 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1143 "0459 Adapter heartbeat still out" 1144 "standing:last compl time was %d ms.\n", 1145 jiffies_to_msecs(jiffies 1146 - phba->last_completion_time)); 1147 mod_timer(&phba->hb_tmofunc, 1148 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1149 } 1150 } 1151 } 1152 1153 /** 1154 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1155 * @phba: pointer to lpfc hba data structure. 1156 * 1157 * This routine is called to bring the HBA offline when HBA hardware error 1158 * other than Port Error 6 has been detected. 1159 **/ 1160 static void 1161 lpfc_offline_eratt(struct lpfc_hba *phba) 1162 { 1163 struct lpfc_sli *psli = &phba->sli; 1164 1165 spin_lock_irq(&phba->hbalock); 1166 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1167 spin_unlock_irq(&phba->hbalock); 1168 lpfc_offline_prep(phba); 1169 1170 lpfc_offline(phba); 1171 lpfc_reset_barrier(phba); 1172 spin_lock_irq(&phba->hbalock); 1173 lpfc_sli_brdreset(phba); 1174 spin_unlock_irq(&phba->hbalock); 1175 lpfc_hba_down_post(phba); 1176 lpfc_sli_brdready(phba, HS_MBRDY); 1177 lpfc_unblock_mgmt_io(phba); 1178 phba->link_state = LPFC_HBA_ERROR; 1179 return; 1180 } 1181 1182 /** 1183 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1184 * @phba: pointer to lpfc hba data structure. 1185 * 1186 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1187 * other than Port Error 6 has been detected. 1188 **/ 1189 static void 1190 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1191 { 1192 lpfc_offline_prep(phba); 1193 lpfc_offline(phba); 1194 lpfc_sli4_brdreset(phba); 1195 lpfc_hba_down_post(phba); 1196 lpfc_sli4_post_status_check(phba); 1197 lpfc_unblock_mgmt_io(phba); 1198 phba->link_state = LPFC_HBA_ERROR; 1199 } 1200 1201 /** 1202 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1203 * @phba: pointer to lpfc hba data structure. 1204 * 1205 * This routine is invoked to handle the deferred HBA hardware error 1206 * conditions. This type of error is indicated by HBA by setting ER1 1207 * and another ER bit in the host status register. The driver will 1208 * wait until the ER1 bit clears before handling the error condition. 1209 **/ 1210 static void 1211 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1212 { 1213 uint32_t old_host_status = phba->work_hs; 1214 struct lpfc_sli_ring *pring; 1215 struct lpfc_sli *psli = &phba->sli; 1216 1217 /* If the pci channel is offline, ignore possible errors, 1218 * since we cannot communicate with the pci card anyway. 1219 */ 1220 if (pci_channel_offline(phba->pcidev)) { 1221 spin_lock_irq(&phba->hbalock); 1222 phba->hba_flag &= ~DEFER_ERATT; 1223 spin_unlock_irq(&phba->hbalock); 1224 return; 1225 } 1226 1227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1228 "0479 Deferred Adapter Hardware Error " 1229 "Data: x%x x%x x%x\n", 1230 phba->work_hs, 1231 phba->work_status[0], phba->work_status[1]); 1232 1233 spin_lock_irq(&phba->hbalock); 1234 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1235 spin_unlock_irq(&phba->hbalock); 1236 1237 1238 /* 1239 * Firmware stops when it triggred erratt. That could cause the I/Os 1240 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1241 * SCSI layer retry it after re-establishing link. 1242 */ 1243 pring = &psli->ring[psli->fcp_ring]; 1244 lpfc_sli_abort_iocb_ring(phba, pring); 1245 1246 /* 1247 * There was a firmware error. Take the hba offline and then 1248 * attempt to restart it. 1249 */ 1250 lpfc_offline_prep(phba); 1251 lpfc_offline(phba); 1252 1253 /* Wait for the ER1 bit to clear.*/ 1254 while (phba->work_hs & HS_FFER1) { 1255 msleep(100); 1256 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1257 phba->work_hs = UNPLUG_ERR ; 1258 break; 1259 } 1260 /* If driver is unloading let the worker thread continue */ 1261 if (phba->pport->load_flag & FC_UNLOADING) { 1262 phba->work_hs = 0; 1263 break; 1264 } 1265 } 1266 1267 /* 1268 * This is to ptrotect against a race condition in which 1269 * first write to the host attention register clear the 1270 * host status register. 1271 */ 1272 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1273 phba->work_hs = old_host_status & ~HS_FFER1; 1274 1275 spin_lock_irq(&phba->hbalock); 1276 phba->hba_flag &= ~DEFER_ERATT; 1277 spin_unlock_irq(&phba->hbalock); 1278 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1279 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1280 } 1281 1282 static void 1283 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1284 { 1285 struct lpfc_board_event_header board_event; 1286 struct Scsi_Host *shost; 1287 1288 board_event.event_type = FC_REG_BOARD_EVENT; 1289 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1290 shost = lpfc_shost_from_vport(phba->pport); 1291 fc_host_post_vendor_event(shost, fc_get_event_number(), 1292 sizeof(board_event), 1293 (char *) &board_event, 1294 LPFC_NL_VENDOR_ID); 1295 } 1296 1297 /** 1298 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1299 * @phba: pointer to lpfc hba data structure. 1300 * 1301 * This routine is invoked to handle the following HBA hardware error 1302 * conditions: 1303 * 1 - HBA error attention interrupt 1304 * 2 - DMA ring index out of range 1305 * 3 - Mailbox command came back as unknown 1306 **/ 1307 static void 1308 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1309 { 1310 struct lpfc_vport *vport = phba->pport; 1311 struct lpfc_sli *psli = &phba->sli; 1312 struct lpfc_sli_ring *pring; 1313 uint32_t event_data; 1314 unsigned long temperature; 1315 struct temp_event temp_event_data; 1316 struct Scsi_Host *shost; 1317 1318 /* If the pci channel is offline, ignore possible errors, 1319 * since we cannot communicate with the pci card anyway. 1320 */ 1321 if (pci_channel_offline(phba->pcidev)) { 1322 spin_lock_irq(&phba->hbalock); 1323 phba->hba_flag &= ~DEFER_ERATT; 1324 spin_unlock_irq(&phba->hbalock); 1325 return; 1326 } 1327 1328 /* If resets are disabled then leave the HBA alone and return */ 1329 if (!phba->cfg_enable_hba_reset) 1330 return; 1331 1332 /* Send an internal error event to mgmt application */ 1333 lpfc_board_errevt_to_mgmt(phba); 1334 1335 if (phba->hba_flag & DEFER_ERATT) 1336 lpfc_handle_deferred_eratt(phba); 1337 1338 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1339 if (phba->work_hs & HS_FFER6) 1340 /* Re-establishing Link */ 1341 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1342 "1301 Re-establishing Link " 1343 "Data: x%x x%x x%x\n", 1344 phba->work_hs, phba->work_status[0], 1345 phba->work_status[1]); 1346 if (phba->work_hs & HS_FFER8) 1347 /* Device Zeroization */ 1348 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1349 "2861 Host Authentication device " 1350 "zeroization Data:x%x x%x x%x\n", 1351 phba->work_hs, phba->work_status[0], 1352 phba->work_status[1]); 1353 1354 spin_lock_irq(&phba->hbalock); 1355 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1356 spin_unlock_irq(&phba->hbalock); 1357 1358 /* 1359 * Firmware stops when it triggled erratt with HS_FFER6. 1360 * That could cause the I/Os dropped by the firmware. 1361 * Error iocb (I/O) on txcmplq and let the SCSI layer 1362 * retry it after re-establishing link. 1363 */ 1364 pring = &psli->ring[psli->fcp_ring]; 1365 lpfc_sli_abort_iocb_ring(phba, pring); 1366 1367 /* 1368 * There was a firmware error. Take the hba offline and then 1369 * attempt to restart it. 1370 */ 1371 lpfc_offline_prep(phba); 1372 lpfc_offline(phba); 1373 lpfc_sli_brdrestart(phba); 1374 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1375 lpfc_unblock_mgmt_io(phba); 1376 return; 1377 } 1378 lpfc_unblock_mgmt_io(phba); 1379 } else if (phba->work_hs & HS_CRIT_TEMP) { 1380 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1381 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1382 temp_event_data.event_code = LPFC_CRIT_TEMP; 1383 temp_event_data.data = (uint32_t)temperature; 1384 1385 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1386 "0406 Adapter maximum temperature exceeded " 1387 "(%ld), taking this port offline " 1388 "Data: x%x x%x x%x\n", 1389 temperature, phba->work_hs, 1390 phba->work_status[0], phba->work_status[1]); 1391 1392 shost = lpfc_shost_from_vport(phba->pport); 1393 fc_host_post_vendor_event(shost, fc_get_event_number(), 1394 sizeof(temp_event_data), 1395 (char *) &temp_event_data, 1396 SCSI_NL_VID_TYPE_PCI 1397 | PCI_VENDOR_ID_EMULEX); 1398 1399 spin_lock_irq(&phba->hbalock); 1400 phba->over_temp_state = HBA_OVER_TEMP; 1401 spin_unlock_irq(&phba->hbalock); 1402 lpfc_offline_eratt(phba); 1403 1404 } else { 1405 /* The if clause above forces this code path when the status 1406 * failure is a value other than FFER6. Do not call the offline 1407 * twice. This is the adapter hardware error path. 1408 */ 1409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1410 "0457 Adapter Hardware Error " 1411 "Data: x%x x%x x%x\n", 1412 phba->work_hs, 1413 phba->work_status[0], phba->work_status[1]); 1414 1415 event_data = FC_REG_DUMP_EVENT; 1416 shost = lpfc_shost_from_vport(vport); 1417 fc_host_post_vendor_event(shost, fc_get_event_number(), 1418 sizeof(event_data), (char *) &event_data, 1419 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1420 1421 lpfc_offline_eratt(phba); 1422 } 1423 return; 1424 } 1425 1426 /** 1427 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1428 * @phba: pointer to lpfc hba data structure. 1429 * 1430 * This routine is invoked to handle the SLI4 HBA hardware error attention 1431 * conditions. 1432 **/ 1433 static void 1434 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1435 { 1436 struct lpfc_vport *vport = phba->pport; 1437 uint32_t event_data; 1438 struct Scsi_Host *shost; 1439 uint32_t if_type; 1440 struct lpfc_register portstat_reg; 1441 1442 /* If the pci channel is offline, ignore possible errors, since 1443 * we cannot communicate with the pci card anyway. 1444 */ 1445 if (pci_channel_offline(phba->pcidev)) 1446 return; 1447 /* If resets are disabled then leave the HBA alone and return */ 1448 if (!phba->cfg_enable_hba_reset) 1449 return; 1450 1451 /* Send an internal error event to mgmt application */ 1452 lpfc_board_errevt_to_mgmt(phba); 1453 1454 /* For now, the actual action for SLI4 device handling is not 1455 * specified yet, just treated it as adaptor hardware failure 1456 */ 1457 event_data = FC_REG_DUMP_EVENT; 1458 shost = lpfc_shost_from_vport(vport); 1459 fc_host_post_vendor_event(shost, fc_get_event_number(), 1460 sizeof(event_data), (char *) &event_data, 1461 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1462 1463 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1464 switch (if_type) { 1465 case LPFC_SLI_INTF_IF_TYPE_0: 1466 lpfc_sli4_offline_eratt(phba); 1467 break; 1468 case LPFC_SLI_INTF_IF_TYPE_2: 1469 portstat_reg.word0 = 1470 readl(phba->sli4_hba.u.if_type2.STATUSregaddr); 1471 1472 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1473 /* TODO: Register for Overtemp async events. */ 1474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1475 "2889 Port Overtemperature event, " 1476 "taking port\n"); 1477 spin_lock_irq(&phba->hbalock); 1478 phba->over_temp_state = HBA_OVER_TEMP; 1479 spin_unlock_irq(&phba->hbalock); 1480 lpfc_sli4_offline_eratt(phba); 1481 return; 1482 } 1483 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) { 1484 /* 1485 * TODO: Attempt port recovery via a port reset. 1486 * When fully implemented, the driver should 1487 * attempt to recover the port here and return. 1488 * For now, log an error and take the port offline. 1489 */ 1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1491 "2887 Port Error: Attempting " 1492 "Port Recovery\n"); 1493 } 1494 lpfc_sli4_offline_eratt(phba); 1495 break; 1496 case LPFC_SLI_INTF_IF_TYPE_1: 1497 default: 1498 break; 1499 } 1500 } 1501 1502 /** 1503 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1504 * @phba: pointer to lpfc HBA data structure. 1505 * 1506 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1507 * routine from the API jump table function pointer from the lpfc_hba struct. 1508 * 1509 * Return codes 1510 * 0 - success. 1511 * Any other value - error. 1512 **/ 1513 void 1514 lpfc_handle_eratt(struct lpfc_hba *phba) 1515 { 1516 (*phba->lpfc_handle_eratt)(phba); 1517 } 1518 1519 /** 1520 * lpfc_handle_latt - The HBA link event handler 1521 * @phba: pointer to lpfc hba data structure. 1522 * 1523 * This routine is invoked from the worker thread to handle a HBA host 1524 * attention link event. 1525 **/ 1526 void 1527 lpfc_handle_latt(struct lpfc_hba *phba) 1528 { 1529 struct lpfc_vport *vport = phba->pport; 1530 struct lpfc_sli *psli = &phba->sli; 1531 LPFC_MBOXQ_t *pmb; 1532 volatile uint32_t control; 1533 struct lpfc_dmabuf *mp; 1534 int rc = 0; 1535 1536 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1537 if (!pmb) { 1538 rc = 1; 1539 goto lpfc_handle_latt_err_exit; 1540 } 1541 1542 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1543 if (!mp) { 1544 rc = 2; 1545 goto lpfc_handle_latt_free_pmb; 1546 } 1547 1548 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1549 if (!mp->virt) { 1550 rc = 3; 1551 goto lpfc_handle_latt_free_mp; 1552 } 1553 1554 /* Cleanup any outstanding ELS commands */ 1555 lpfc_els_flush_all_cmd(phba); 1556 1557 psli->slistat.link_event++; 1558 lpfc_read_topology(phba, pmb, mp); 1559 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1560 pmb->vport = vport; 1561 /* Block ELS IOCBs until we have processed this mbox command */ 1562 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1563 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1564 if (rc == MBX_NOT_FINISHED) { 1565 rc = 4; 1566 goto lpfc_handle_latt_free_mbuf; 1567 } 1568 1569 /* Clear Link Attention in HA REG */ 1570 spin_lock_irq(&phba->hbalock); 1571 writel(HA_LATT, phba->HAregaddr); 1572 readl(phba->HAregaddr); /* flush */ 1573 spin_unlock_irq(&phba->hbalock); 1574 1575 return; 1576 1577 lpfc_handle_latt_free_mbuf: 1578 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1579 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1580 lpfc_handle_latt_free_mp: 1581 kfree(mp); 1582 lpfc_handle_latt_free_pmb: 1583 mempool_free(pmb, phba->mbox_mem_pool); 1584 lpfc_handle_latt_err_exit: 1585 /* Enable Link attention interrupts */ 1586 spin_lock_irq(&phba->hbalock); 1587 psli->sli_flag |= LPFC_PROCESS_LA; 1588 control = readl(phba->HCregaddr); 1589 control |= HC_LAINT_ENA; 1590 writel(control, phba->HCregaddr); 1591 readl(phba->HCregaddr); /* flush */ 1592 1593 /* Clear Link Attention in HA REG */ 1594 writel(HA_LATT, phba->HAregaddr); 1595 readl(phba->HAregaddr); /* flush */ 1596 spin_unlock_irq(&phba->hbalock); 1597 lpfc_linkdown(phba); 1598 phba->link_state = LPFC_HBA_ERROR; 1599 1600 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1601 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1602 1603 return; 1604 } 1605 1606 /** 1607 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1608 * @phba: pointer to lpfc hba data structure. 1609 * @vpd: pointer to the vital product data. 1610 * @len: length of the vital product data in bytes. 1611 * 1612 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1613 * an array of characters. In this routine, the ModelName, ProgramType, and 1614 * ModelDesc, etc. fields of the phba data structure will be populated. 1615 * 1616 * Return codes 1617 * 0 - pointer to the VPD passed in is NULL 1618 * 1 - success 1619 **/ 1620 int 1621 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1622 { 1623 uint8_t lenlo, lenhi; 1624 int Length; 1625 int i, j; 1626 int finished = 0; 1627 int index = 0; 1628 1629 if (!vpd) 1630 return 0; 1631 1632 /* Vital Product */ 1633 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1634 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1635 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1636 (uint32_t) vpd[3]); 1637 while (!finished && (index < (len - 4))) { 1638 switch (vpd[index]) { 1639 case 0x82: 1640 case 0x91: 1641 index += 1; 1642 lenlo = vpd[index]; 1643 index += 1; 1644 lenhi = vpd[index]; 1645 index += 1; 1646 i = ((((unsigned short)lenhi) << 8) + lenlo); 1647 index += i; 1648 break; 1649 case 0x90: 1650 index += 1; 1651 lenlo = vpd[index]; 1652 index += 1; 1653 lenhi = vpd[index]; 1654 index += 1; 1655 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1656 if (Length > len - index) 1657 Length = len - index; 1658 while (Length > 0) { 1659 /* Look for Serial Number */ 1660 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1661 index += 2; 1662 i = vpd[index]; 1663 index += 1; 1664 j = 0; 1665 Length -= (3+i); 1666 while(i--) { 1667 phba->SerialNumber[j++] = vpd[index++]; 1668 if (j == 31) 1669 break; 1670 } 1671 phba->SerialNumber[j] = 0; 1672 continue; 1673 } 1674 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1675 phba->vpd_flag |= VPD_MODEL_DESC; 1676 index += 2; 1677 i = vpd[index]; 1678 index += 1; 1679 j = 0; 1680 Length -= (3+i); 1681 while(i--) { 1682 phba->ModelDesc[j++] = vpd[index++]; 1683 if (j == 255) 1684 break; 1685 } 1686 phba->ModelDesc[j] = 0; 1687 continue; 1688 } 1689 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1690 phba->vpd_flag |= VPD_MODEL_NAME; 1691 index += 2; 1692 i = vpd[index]; 1693 index += 1; 1694 j = 0; 1695 Length -= (3+i); 1696 while(i--) { 1697 phba->ModelName[j++] = vpd[index++]; 1698 if (j == 79) 1699 break; 1700 } 1701 phba->ModelName[j] = 0; 1702 continue; 1703 } 1704 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1705 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1706 index += 2; 1707 i = vpd[index]; 1708 index += 1; 1709 j = 0; 1710 Length -= (3+i); 1711 while(i--) { 1712 phba->ProgramType[j++] = vpd[index++]; 1713 if (j == 255) 1714 break; 1715 } 1716 phba->ProgramType[j] = 0; 1717 continue; 1718 } 1719 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1720 phba->vpd_flag |= VPD_PORT; 1721 index += 2; 1722 i = vpd[index]; 1723 index += 1; 1724 j = 0; 1725 Length -= (3+i); 1726 while(i--) { 1727 phba->Port[j++] = vpd[index++]; 1728 if (j == 19) 1729 break; 1730 } 1731 phba->Port[j] = 0; 1732 continue; 1733 } 1734 else { 1735 index += 2; 1736 i = vpd[index]; 1737 index += 1; 1738 index += i; 1739 Length -= (3 + i); 1740 } 1741 } 1742 finished = 0; 1743 break; 1744 case 0x78: 1745 finished = 1; 1746 break; 1747 default: 1748 index ++; 1749 break; 1750 } 1751 } 1752 1753 return(1); 1754 } 1755 1756 /** 1757 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1758 * @phba: pointer to lpfc hba data structure. 1759 * @mdp: pointer to the data structure to hold the derived model name. 1760 * @descp: pointer to the data structure to hold the derived description. 1761 * 1762 * This routine retrieves HBA's description based on its registered PCI device 1763 * ID. The @descp passed into this function points to an array of 256 chars. It 1764 * shall be returned with the model name, maximum speed, and the host bus type. 1765 * The @mdp passed into this function points to an array of 80 chars. When the 1766 * function returns, the @mdp will be filled with the model name. 1767 **/ 1768 static void 1769 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1770 { 1771 lpfc_vpd_t *vp; 1772 uint16_t dev_id = phba->pcidev->device; 1773 int max_speed; 1774 int GE = 0; 1775 int oneConnect = 0; /* default is not a oneConnect */ 1776 struct { 1777 char *name; 1778 char *bus; 1779 char *function; 1780 } m = {"<Unknown>", "", ""}; 1781 1782 if (mdp && mdp[0] != '\0' 1783 && descp && descp[0] != '\0') 1784 return; 1785 1786 if (phba->lmt & LMT_16Gb) 1787 max_speed = 16; 1788 else if (phba->lmt & LMT_10Gb) 1789 max_speed = 10; 1790 else if (phba->lmt & LMT_8Gb) 1791 max_speed = 8; 1792 else if (phba->lmt & LMT_4Gb) 1793 max_speed = 4; 1794 else if (phba->lmt & LMT_2Gb) 1795 max_speed = 2; 1796 else 1797 max_speed = 1; 1798 1799 vp = &phba->vpd; 1800 1801 switch (dev_id) { 1802 case PCI_DEVICE_ID_FIREFLY: 1803 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1804 break; 1805 case PCI_DEVICE_ID_SUPERFLY: 1806 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1807 m = (typeof(m)){"LP7000", "PCI", 1808 "Fibre Channel Adapter"}; 1809 else 1810 m = (typeof(m)){"LP7000E", "PCI", 1811 "Fibre Channel Adapter"}; 1812 break; 1813 case PCI_DEVICE_ID_DRAGONFLY: 1814 m = (typeof(m)){"LP8000", "PCI", 1815 "Fibre Channel Adapter"}; 1816 break; 1817 case PCI_DEVICE_ID_CENTAUR: 1818 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1819 m = (typeof(m)){"LP9002", "PCI", 1820 "Fibre Channel Adapter"}; 1821 else 1822 m = (typeof(m)){"LP9000", "PCI", 1823 "Fibre Channel Adapter"}; 1824 break; 1825 case PCI_DEVICE_ID_RFLY: 1826 m = (typeof(m)){"LP952", "PCI", 1827 "Fibre Channel Adapter"}; 1828 break; 1829 case PCI_DEVICE_ID_PEGASUS: 1830 m = (typeof(m)){"LP9802", "PCI-X", 1831 "Fibre Channel Adapter"}; 1832 break; 1833 case PCI_DEVICE_ID_THOR: 1834 m = (typeof(m)){"LP10000", "PCI-X", 1835 "Fibre Channel Adapter"}; 1836 break; 1837 case PCI_DEVICE_ID_VIPER: 1838 m = (typeof(m)){"LPX1000", "PCI-X", 1839 "Fibre Channel Adapter"}; 1840 break; 1841 case PCI_DEVICE_ID_PFLY: 1842 m = (typeof(m)){"LP982", "PCI-X", 1843 "Fibre Channel Adapter"}; 1844 break; 1845 case PCI_DEVICE_ID_TFLY: 1846 m = (typeof(m)){"LP1050", "PCI-X", 1847 "Fibre Channel Adapter"}; 1848 break; 1849 case PCI_DEVICE_ID_HELIOS: 1850 m = (typeof(m)){"LP11000", "PCI-X2", 1851 "Fibre Channel Adapter"}; 1852 break; 1853 case PCI_DEVICE_ID_HELIOS_SCSP: 1854 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1855 "Fibre Channel Adapter"}; 1856 break; 1857 case PCI_DEVICE_ID_HELIOS_DCSP: 1858 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1859 "Fibre Channel Adapter"}; 1860 break; 1861 case PCI_DEVICE_ID_NEPTUNE: 1862 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1863 break; 1864 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1865 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1866 break; 1867 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1868 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1869 break; 1870 case PCI_DEVICE_ID_BMID: 1871 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1872 break; 1873 case PCI_DEVICE_ID_BSMB: 1874 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1875 break; 1876 case PCI_DEVICE_ID_ZEPHYR: 1877 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1878 break; 1879 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1880 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1881 break; 1882 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1883 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1884 GE = 1; 1885 break; 1886 case PCI_DEVICE_ID_ZMID: 1887 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1888 break; 1889 case PCI_DEVICE_ID_ZSMB: 1890 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1891 break; 1892 case PCI_DEVICE_ID_LP101: 1893 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1894 break; 1895 case PCI_DEVICE_ID_LP10000S: 1896 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1897 break; 1898 case PCI_DEVICE_ID_LP11000S: 1899 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1900 break; 1901 case PCI_DEVICE_ID_LPE11000S: 1902 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1903 break; 1904 case PCI_DEVICE_ID_SAT: 1905 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1906 break; 1907 case PCI_DEVICE_ID_SAT_MID: 1908 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1909 break; 1910 case PCI_DEVICE_ID_SAT_SMB: 1911 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1912 break; 1913 case PCI_DEVICE_ID_SAT_DCSP: 1914 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1915 break; 1916 case PCI_DEVICE_ID_SAT_SCSP: 1917 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1918 break; 1919 case PCI_DEVICE_ID_SAT_S: 1920 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1921 break; 1922 case PCI_DEVICE_ID_HORNET: 1923 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1924 GE = 1; 1925 break; 1926 case PCI_DEVICE_ID_PROTEUS_VF: 1927 m = (typeof(m)){"LPev12000", "PCIe IOV", 1928 "Fibre Channel Adapter"}; 1929 break; 1930 case PCI_DEVICE_ID_PROTEUS_PF: 1931 m = (typeof(m)){"LPev12000", "PCIe IOV", 1932 "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_PROTEUS_S: 1935 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1936 "Fibre Channel Adapter"}; 1937 break; 1938 case PCI_DEVICE_ID_TIGERSHARK: 1939 oneConnect = 1; 1940 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1941 break; 1942 case PCI_DEVICE_ID_TOMCAT: 1943 oneConnect = 1; 1944 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1945 break; 1946 case PCI_DEVICE_ID_FALCON: 1947 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1948 "EmulexSecure Fibre"}; 1949 break; 1950 case PCI_DEVICE_ID_BALIUS: 1951 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1952 "Fibre Channel Adapter"}; 1953 break; 1954 case PCI_DEVICE_ID_LANCER_FC: 1955 case PCI_DEVICE_ID_LANCER_FC_VF: 1956 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 1957 break; 1958 case PCI_DEVICE_ID_LANCER_FCOE: 1959 case PCI_DEVICE_ID_LANCER_FCOE_VF: 1960 oneConnect = 1; 1961 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"}; 1962 break; 1963 default: 1964 m = (typeof(m)){"Unknown", "", ""}; 1965 break; 1966 } 1967 1968 if (mdp && mdp[0] == '\0') 1969 snprintf(mdp, 79,"%s", m.name); 1970 /* 1971 * oneConnect hba requires special processing, they are all initiators 1972 * and we put the port number on the end 1973 */ 1974 if (descp && descp[0] == '\0') { 1975 if (oneConnect) 1976 snprintf(descp, 255, 1977 "Emulex OneConnect %s, %s Initiator, Port %s", 1978 m.name, m.function, 1979 phba->Port); 1980 else 1981 snprintf(descp, 255, 1982 "Emulex %s %d%s %s %s", 1983 m.name, max_speed, (GE) ? "GE" : "Gb", 1984 m.bus, m.function); 1985 } 1986 } 1987 1988 /** 1989 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 1990 * @phba: pointer to lpfc hba data structure. 1991 * @pring: pointer to a IOCB ring. 1992 * @cnt: the number of IOCBs to be posted to the IOCB ring. 1993 * 1994 * This routine posts a given number of IOCBs with the associated DMA buffer 1995 * descriptors specified by the cnt argument to the given IOCB ring. 1996 * 1997 * Return codes 1998 * The number of IOCBs NOT able to be posted to the IOCB ring. 1999 **/ 2000 int 2001 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2002 { 2003 IOCB_t *icmd; 2004 struct lpfc_iocbq *iocb; 2005 struct lpfc_dmabuf *mp1, *mp2; 2006 2007 cnt += pring->missbufcnt; 2008 2009 /* While there are buffers to post */ 2010 while (cnt > 0) { 2011 /* Allocate buffer for command iocb */ 2012 iocb = lpfc_sli_get_iocbq(phba); 2013 if (iocb == NULL) { 2014 pring->missbufcnt = cnt; 2015 return cnt; 2016 } 2017 icmd = &iocb->iocb; 2018 2019 /* 2 buffers can be posted per command */ 2020 /* Allocate buffer to post */ 2021 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2022 if (mp1) 2023 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2024 if (!mp1 || !mp1->virt) { 2025 kfree(mp1); 2026 lpfc_sli_release_iocbq(phba, iocb); 2027 pring->missbufcnt = cnt; 2028 return cnt; 2029 } 2030 2031 INIT_LIST_HEAD(&mp1->list); 2032 /* Allocate buffer to post */ 2033 if (cnt > 1) { 2034 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2035 if (mp2) 2036 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2037 &mp2->phys); 2038 if (!mp2 || !mp2->virt) { 2039 kfree(mp2); 2040 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2041 kfree(mp1); 2042 lpfc_sli_release_iocbq(phba, iocb); 2043 pring->missbufcnt = cnt; 2044 return cnt; 2045 } 2046 2047 INIT_LIST_HEAD(&mp2->list); 2048 } else { 2049 mp2 = NULL; 2050 } 2051 2052 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2053 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2054 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2055 icmd->ulpBdeCount = 1; 2056 cnt--; 2057 if (mp2) { 2058 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2059 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2060 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2061 cnt--; 2062 icmd->ulpBdeCount = 2; 2063 } 2064 2065 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2066 icmd->ulpLe = 1; 2067 2068 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2069 IOCB_ERROR) { 2070 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2071 kfree(mp1); 2072 cnt++; 2073 if (mp2) { 2074 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2075 kfree(mp2); 2076 cnt++; 2077 } 2078 lpfc_sli_release_iocbq(phba, iocb); 2079 pring->missbufcnt = cnt; 2080 return cnt; 2081 } 2082 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2083 if (mp2) 2084 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2085 } 2086 pring->missbufcnt = 0; 2087 return 0; 2088 } 2089 2090 /** 2091 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2092 * @phba: pointer to lpfc hba data structure. 2093 * 2094 * This routine posts initial receive IOCB buffers to the ELS ring. The 2095 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2096 * set to 64 IOCBs. 2097 * 2098 * Return codes 2099 * 0 - success (currently always success) 2100 **/ 2101 static int 2102 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2103 { 2104 struct lpfc_sli *psli = &phba->sli; 2105 2106 /* Ring 0, ELS / CT buffers */ 2107 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2108 /* Ring 2 - FCP no buffers needed */ 2109 2110 return 0; 2111 } 2112 2113 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2114 2115 /** 2116 * lpfc_sha_init - Set up initial array of hash table entries 2117 * @HashResultPointer: pointer to an array as hash table. 2118 * 2119 * This routine sets up the initial values to the array of hash table entries 2120 * for the LC HBAs. 2121 **/ 2122 static void 2123 lpfc_sha_init(uint32_t * HashResultPointer) 2124 { 2125 HashResultPointer[0] = 0x67452301; 2126 HashResultPointer[1] = 0xEFCDAB89; 2127 HashResultPointer[2] = 0x98BADCFE; 2128 HashResultPointer[3] = 0x10325476; 2129 HashResultPointer[4] = 0xC3D2E1F0; 2130 } 2131 2132 /** 2133 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2134 * @HashResultPointer: pointer to an initial/result hash table. 2135 * @HashWorkingPointer: pointer to an working hash table. 2136 * 2137 * This routine iterates an initial hash table pointed by @HashResultPointer 2138 * with the values from the working hash table pointeed by @HashWorkingPointer. 2139 * The results are putting back to the initial hash table, returned through 2140 * the @HashResultPointer as the result hash table. 2141 **/ 2142 static void 2143 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2144 { 2145 int t; 2146 uint32_t TEMP; 2147 uint32_t A, B, C, D, E; 2148 t = 16; 2149 do { 2150 HashWorkingPointer[t] = 2151 S(1, 2152 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2153 8] ^ 2154 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2155 } while (++t <= 79); 2156 t = 0; 2157 A = HashResultPointer[0]; 2158 B = HashResultPointer[1]; 2159 C = HashResultPointer[2]; 2160 D = HashResultPointer[3]; 2161 E = HashResultPointer[4]; 2162 2163 do { 2164 if (t < 20) { 2165 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2166 } else if (t < 40) { 2167 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2168 } else if (t < 60) { 2169 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2170 } else { 2171 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2172 } 2173 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2174 E = D; 2175 D = C; 2176 C = S(30, B); 2177 B = A; 2178 A = TEMP; 2179 } while (++t <= 79); 2180 2181 HashResultPointer[0] += A; 2182 HashResultPointer[1] += B; 2183 HashResultPointer[2] += C; 2184 HashResultPointer[3] += D; 2185 HashResultPointer[4] += E; 2186 2187 } 2188 2189 /** 2190 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2191 * @RandomChallenge: pointer to the entry of host challenge random number array. 2192 * @HashWorking: pointer to the entry of the working hash array. 2193 * 2194 * This routine calculates the working hash array referred by @HashWorking 2195 * from the challenge random numbers associated with the host, referred by 2196 * @RandomChallenge. The result is put into the entry of the working hash 2197 * array and returned by reference through @HashWorking. 2198 **/ 2199 static void 2200 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2201 { 2202 *HashWorking = (*RandomChallenge ^ *HashWorking); 2203 } 2204 2205 /** 2206 * lpfc_hba_init - Perform special handling for LC HBA initialization 2207 * @phba: pointer to lpfc hba data structure. 2208 * @hbainit: pointer to an array of unsigned 32-bit integers. 2209 * 2210 * This routine performs the special handling for LC HBA initialization. 2211 **/ 2212 void 2213 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2214 { 2215 int t; 2216 uint32_t *HashWorking; 2217 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2218 2219 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2220 if (!HashWorking) 2221 return; 2222 2223 HashWorking[0] = HashWorking[78] = *pwwnn++; 2224 HashWorking[1] = HashWorking[79] = *pwwnn; 2225 2226 for (t = 0; t < 7; t++) 2227 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2228 2229 lpfc_sha_init(hbainit); 2230 lpfc_sha_iterate(hbainit, HashWorking); 2231 kfree(HashWorking); 2232 } 2233 2234 /** 2235 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2236 * @vport: pointer to a virtual N_Port data structure. 2237 * 2238 * This routine performs the necessary cleanups before deleting the @vport. 2239 * It invokes the discovery state machine to perform necessary state 2240 * transitions and to release the ndlps associated with the @vport. Note, 2241 * the physical port is treated as @vport 0. 2242 **/ 2243 void 2244 lpfc_cleanup(struct lpfc_vport *vport) 2245 { 2246 struct lpfc_hba *phba = vport->phba; 2247 struct lpfc_nodelist *ndlp, *next_ndlp; 2248 int i = 0; 2249 2250 if (phba->link_state > LPFC_LINK_DOWN) 2251 lpfc_port_link_failure(vport); 2252 2253 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2254 if (!NLP_CHK_NODE_ACT(ndlp)) { 2255 ndlp = lpfc_enable_node(vport, ndlp, 2256 NLP_STE_UNUSED_NODE); 2257 if (!ndlp) 2258 continue; 2259 spin_lock_irq(&phba->ndlp_lock); 2260 NLP_SET_FREE_REQ(ndlp); 2261 spin_unlock_irq(&phba->ndlp_lock); 2262 /* Trigger the release of the ndlp memory */ 2263 lpfc_nlp_put(ndlp); 2264 continue; 2265 } 2266 spin_lock_irq(&phba->ndlp_lock); 2267 if (NLP_CHK_FREE_REQ(ndlp)) { 2268 /* The ndlp should not be in memory free mode already */ 2269 spin_unlock_irq(&phba->ndlp_lock); 2270 continue; 2271 } else 2272 /* Indicate request for freeing ndlp memory */ 2273 NLP_SET_FREE_REQ(ndlp); 2274 spin_unlock_irq(&phba->ndlp_lock); 2275 2276 if (vport->port_type != LPFC_PHYSICAL_PORT && 2277 ndlp->nlp_DID == Fabric_DID) { 2278 /* Just free up ndlp with Fabric_DID for vports */ 2279 lpfc_nlp_put(ndlp); 2280 continue; 2281 } 2282 2283 if (ndlp->nlp_type & NLP_FABRIC) 2284 lpfc_disc_state_machine(vport, ndlp, NULL, 2285 NLP_EVT_DEVICE_RECOVERY); 2286 2287 lpfc_disc_state_machine(vport, ndlp, NULL, 2288 NLP_EVT_DEVICE_RM); 2289 2290 } 2291 2292 /* At this point, ALL ndlp's should be gone 2293 * because of the previous NLP_EVT_DEVICE_RM. 2294 * Lets wait for this to happen, if needed. 2295 */ 2296 while (!list_empty(&vport->fc_nodes)) { 2297 if (i++ > 3000) { 2298 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2299 "0233 Nodelist not empty\n"); 2300 list_for_each_entry_safe(ndlp, next_ndlp, 2301 &vport->fc_nodes, nlp_listp) { 2302 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2303 LOG_NODE, 2304 "0282 did:x%x ndlp:x%p " 2305 "usgmap:x%x refcnt:%d\n", 2306 ndlp->nlp_DID, (void *)ndlp, 2307 ndlp->nlp_usg_map, 2308 atomic_read( 2309 &ndlp->kref.refcount)); 2310 } 2311 break; 2312 } 2313 2314 /* Wait for any activity on ndlps to settle */ 2315 msleep(10); 2316 } 2317 lpfc_cleanup_vports_rrqs(vport, NULL); 2318 } 2319 2320 /** 2321 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2322 * @vport: pointer to a virtual N_Port data structure. 2323 * 2324 * This routine stops all the timers associated with a @vport. This function 2325 * is invoked before disabling or deleting a @vport. Note that the physical 2326 * port is treated as @vport 0. 2327 **/ 2328 void 2329 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2330 { 2331 del_timer_sync(&vport->els_tmofunc); 2332 del_timer_sync(&vport->fc_fdmitmo); 2333 del_timer_sync(&vport->delayed_disc_tmo); 2334 lpfc_can_disctmo(vport); 2335 return; 2336 } 2337 2338 /** 2339 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2340 * @phba: pointer to lpfc hba data structure. 2341 * 2342 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2343 * caller of this routine should already hold the host lock. 2344 **/ 2345 void 2346 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2347 { 2348 /* Clear pending FCF rediscovery wait flag */ 2349 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2350 2351 /* Now, try to stop the timer */ 2352 del_timer(&phba->fcf.redisc_wait); 2353 } 2354 2355 /** 2356 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2357 * @phba: pointer to lpfc hba data structure. 2358 * 2359 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2360 * checks whether the FCF rediscovery wait timer is pending with the host 2361 * lock held before proceeding with disabling the timer and clearing the 2362 * wait timer pendig flag. 2363 **/ 2364 void 2365 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2366 { 2367 spin_lock_irq(&phba->hbalock); 2368 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2369 /* FCF rediscovery timer already fired or stopped */ 2370 spin_unlock_irq(&phba->hbalock); 2371 return; 2372 } 2373 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2374 /* Clear failover in progress flags */ 2375 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2376 spin_unlock_irq(&phba->hbalock); 2377 } 2378 2379 /** 2380 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2381 * @phba: pointer to lpfc hba data structure. 2382 * 2383 * This routine stops all the timers associated with a HBA. This function is 2384 * invoked before either putting a HBA offline or unloading the driver. 2385 **/ 2386 void 2387 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2388 { 2389 lpfc_stop_vport_timers(phba->pport); 2390 del_timer_sync(&phba->sli.mbox_tmo); 2391 del_timer_sync(&phba->fabric_block_timer); 2392 del_timer_sync(&phba->eratt_poll); 2393 del_timer_sync(&phba->hb_tmofunc); 2394 if (phba->sli_rev == LPFC_SLI_REV4) { 2395 del_timer_sync(&phba->rrq_tmr); 2396 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2397 } 2398 phba->hb_outstanding = 0; 2399 2400 switch (phba->pci_dev_grp) { 2401 case LPFC_PCI_DEV_LP: 2402 /* Stop any LightPulse device specific driver timers */ 2403 del_timer_sync(&phba->fcp_poll_timer); 2404 break; 2405 case LPFC_PCI_DEV_OC: 2406 /* Stop any OneConnect device sepcific driver timers */ 2407 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2408 break; 2409 default: 2410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2411 "0297 Invalid device group (x%x)\n", 2412 phba->pci_dev_grp); 2413 break; 2414 } 2415 return; 2416 } 2417 2418 /** 2419 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2420 * @phba: pointer to lpfc hba data structure. 2421 * 2422 * This routine marks a HBA's management interface as blocked. Once the HBA's 2423 * management interface is marked as blocked, all the user space access to 2424 * the HBA, whether they are from sysfs interface or libdfc interface will 2425 * all be blocked. The HBA is set to block the management interface when the 2426 * driver prepares the HBA interface for online or offline. 2427 **/ 2428 static void 2429 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2430 { 2431 unsigned long iflag; 2432 uint8_t actcmd = MBX_HEARTBEAT; 2433 unsigned long timeout; 2434 2435 2436 spin_lock_irqsave(&phba->hbalock, iflag); 2437 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2438 if (phba->sli.mbox_active) 2439 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2440 spin_unlock_irqrestore(&phba->hbalock, iflag); 2441 /* Determine how long we might wait for the active mailbox 2442 * command to be gracefully completed by firmware. 2443 */ 2444 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + 2445 jiffies; 2446 /* Wait for the outstnading mailbox command to complete */ 2447 while (phba->sli.mbox_active) { 2448 /* Check active mailbox complete status every 2ms */ 2449 msleep(2); 2450 if (time_after(jiffies, timeout)) { 2451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2452 "2813 Mgmt IO is Blocked %x " 2453 "- mbox cmd %x still active\n", 2454 phba->sli.sli_flag, actcmd); 2455 break; 2456 } 2457 } 2458 } 2459 2460 /** 2461 * lpfc_online - Initialize and bring a HBA online 2462 * @phba: pointer to lpfc hba data structure. 2463 * 2464 * This routine initializes the HBA and brings a HBA online. During this 2465 * process, the management interface is blocked to prevent user space access 2466 * to the HBA interfering with the driver initialization. 2467 * 2468 * Return codes 2469 * 0 - successful 2470 * 1 - failed 2471 **/ 2472 int 2473 lpfc_online(struct lpfc_hba *phba) 2474 { 2475 struct lpfc_vport *vport; 2476 struct lpfc_vport **vports; 2477 int i; 2478 2479 if (!phba) 2480 return 0; 2481 vport = phba->pport; 2482 2483 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2484 return 0; 2485 2486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2487 "0458 Bring Adapter online\n"); 2488 2489 lpfc_block_mgmt_io(phba); 2490 2491 if (!lpfc_sli_queue_setup(phba)) { 2492 lpfc_unblock_mgmt_io(phba); 2493 return 1; 2494 } 2495 2496 if (phba->sli_rev == LPFC_SLI_REV4) { 2497 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2498 lpfc_unblock_mgmt_io(phba); 2499 return 1; 2500 } 2501 } else { 2502 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2503 lpfc_unblock_mgmt_io(phba); 2504 return 1; 2505 } 2506 } 2507 2508 vports = lpfc_create_vport_work_array(phba); 2509 if (vports != NULL) 2510 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2511 struct Scsi_Host *shost; 2512 shost = lpfc_shost_from_vport(vports[i]); 2513 spin_lock_irq(shost->host_lock); 2514 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2515 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2516 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2517 if (phba->sli_rev == LPFC_SLI_REV4) 2518 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2519 spin_unlock_irq(shost->host_lock); 2520 } 2521 lpfc_destroy_vport_work_array(phba, vports); 2522 2523 lpfc_unblock_mgmt_io(phba); 2524 return 0; 2525 } 2526 2527 /** 2528 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2529 * @phba: pointer to lpfc hba data structure. 2530 * 2531 * This routine marks a HBA's management interface as not blocked. Once the 2532 * HBA's management interface is marked as not blocked, all the user space 2533 * access to the HBA, whether they are from sysfs interface or libdfc 2534 * interface will be allowed. The HBA is set to block the management interface 2535 * when the driver prepares the HBA interface for online or offline and then 2536 * set to unblock the management interface afterwards. 2537 **/ 2538 void 2539 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2540 { 2541 unsigned long iflag; 2542 2543 spin_lock_irqsave(&phba->hbalock, iflag); 2544 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2545 spin_unlock_irqrestore(&phba->hbalock, iflag); 2546 } 2547 2548 /** 2549 * lpfc_offline_prep - Prepare a HBA to be brought offline 2550 * @phba: pointer to lpfc hba data structure. 2551 * 2552 * This routine is invoked to prepare a HBA to be brought offline. It performs 2553 * unregistration login to all the nodes on all vports and flushes the mailbox 2554 * queue to make it ready to be brought offline. 2555 **/ 2556 void 2557 lpfc_offline_prep(struct lpfc_hba * phba) 2558 { 2559 struct lpfc_vport *vport = phba->pport; 2560 struct lpfc_nodelist *ndlp, *next_ndlp; 2561 struct lpfc_vport **vports; 2562 struct Scsi_Host *shost; 2563 int i; 2564 2565 if (vport->fc_flag & FC_OFFLINE_MODE) 2566 return; 2567 2568 lpfc_block_mgmt_io(phba); 2569 2570 lpfc_linkdown(phba); 2571 2572 /* Issue an unreg_login to all nodes on all vports */ 2573 vports = lpfc_create_vport_work_array(phba); 2574 if (vports != NULL) { 2575 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2576 if (vports[i]->load_flag & FC_UNLOADING) 2577 continue; 2578 shost = lpfc_shost_from_vport(vports[i]); 2579 spin_lock_irq(shost->host_lock); 2580 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2581 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2582 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2583 spin_unlock_irq(shost->host_lock); 2584 2585 shost = lpfc_shost_from_vport(vports[i]); 2586 list_for_each_entry_safe(ndlp, next_ndlp, 2587 &vports[i]->fc_nodes, 2588 nlp_listp) { 2589 if (!NLP_CHK_NODE_ACT(ndlp)) 2590 continue; 2591 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2592 continue; 2593 if (ndlp->nlp_type & NLP_FABRIC) { 2594 lpfc_disc_state_machine(vports[i], ndlp, 2595 NULL, NLP_EVT_DEVICE_RECOVERY); 2596 lpfc_disc_state_machine(vports[i], ndlp, 2597 NULL, NLP_EVT_DEVICE_RM); 2598 } 2599 spin_lock_irq(shost->host_lock); 2600 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2601 spin_unlock_irq(shost->host_lock); 2602 lpfc_unreg_rpi(vports[i], ndlp); 2603 } 2604 } 2605 } 2606 lpfc_destroy_vport_work_array(phba, vports); 2607 2608 lpfc_sli_mbox_sys_shutdown(phba); 2609 } 2610 2611 /** 2612 * lpfc_offline - Bring a HBA offline 2613 * @phba: pointer to lpfc hba data structure. 2614 * 2615 * This routine actually brings a HBA offline. It stops all the timers 2616 * associated with the HBA, brings down the SLI layer, and eventually 2617 * marks the HBA as in offline state for the upper layer protocol. 2618 **/ 2619 void 2620 lpfc_offline(struct lpfc_hba *phba) 2621 { 2622 struct Scsi_Host *shost; 2623 struct lpfc_vport **vports; 2624 int i; 2625 2626 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2627 return; 2628 2629 /* stop port and all timers associated with this hba */ 2630 lpfc_stop_port(phba); 2631 vports = lpfc_create_vport_work_array(phba); 2632 if (vports != NULL) 2633 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2634 lpfc_stop_vport_timers(vports[i]); 2635 lpfc_destroy_vport_work_array(phba, vports); 2636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2637 "0460 Bring Adapter offline\n"); 2638 /* Bring down the SLI Layer and cleanup. The HBA is offline 2639 now. */ 2640 lpfc_sli_hba_down(phba); 2641 spin_lock_irq(&phba->hbalock); 2642 phba->work_ha = 0; 2643 spin_unlock_irq(&phba->hbalock); 2644 vports = lpfc_create_vport_work_array(phba); 2645 if (vports != NULL) 2646 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2647 shost = lpfc_shost_from_vport(vports[i]); 2648 spin_lock_irq(shost->host_lock); 2649 vports[i]->work_port_events = 0; 2650 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2651 spin_unlock_irq(shost->host_lock); 2652 } 2653 lpfc_destroy_vport_work_array(phba, vports); 2654 } 2655 2656 /** 2657 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2658 * @phba: pointer to lpfc hba data structure. 2659 * 2660 * This routine is to free all the SCSI buffers and IOCBs from the driver 2661 * list back to kernel. It is called from lpfc_pci_remove_one to free 2662 * the internal resources before the device is removed from the system. 2663 * 2664 * Return codes 2665 * 0 - successful (for now, it always returns 0) 2666 **/ 2667 static int 2668 lpfc_scsi_free(struct lpfc_hba *phba) 2669 { 2670 struct lpfc_scsi_buf *sb, *sb_next; 2671 struct lpfc_iocbq *io, *io_next; 2672 2673 spin_lock_irq(&phba->hbalock); 2674 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2675 spin_lock(&phba->scsi_buf_list_lock); 2676 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2677 list_del(&sb->list); 2678 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2679 sb->dma_handle); 2680 kfree(sb); 2681 phba->total_scsi_bufs--; 2682 } 2683 spin_unlock(&phba->scsi_buf_list_lock); 2684 2685 /* Release all the lpfc_iocbq entries maintained by this host. */ 2686 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2687 list_del(&io->list); 2688 kfree(io); 2689 phba->total_iocbq_bufs--; 2690 } 2691 2692 spin_unlock_irq(&phba->hbalock); 2693 return 0; 2694 } 2695 2696 /** 2697 * lpfc_create_port - Create an FC port 2698 * @phba: pointer to lpfc hba data structure. 2699 * @instance: a unique integer ID to this FC port. 2700 * @dev: pointer to the device data structure. 2701 * 2702 * This routine creates a FC port for the upper layer protocol. The FC port 2703 * can be created on top of either a physical port or a virtual port provided 2704 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2705 * and associates the FC port created before adding the shost into the SCSI 2706 * layer. 2707 * 2708 * Return codes 2709 * @vport - pointer to the virtual N_Port data structure. 2710 * NULL - port create failed. 2711 **/ 2712 struct lpfc_vport * 2713 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2714 { 2715 struct lpfc_vport *vport; 2716 struct Scsi_Host *shost; 2717 int error = 0; 2718 2719 if (dev != &phba->pcidev->dev) 2720 shost = scsi_host_alloc(&lpfc_vport_template, 2721 sizeof(struct lpfc_vport)); 2722 else 2723 shost = scsi_host_alloc(&lpfc_template, 2724 sizeof(struct lpfc_vport)); 2725 if (!shost) 2726 goto out; 2727 2728 vport = (struct lpfc_vport *) shost->hostdata; 2729 vport->phba = phba; 2730 vport->load_flag |= FC_LOADING; 2731 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2732 vport->fc_rscn_flush = 0; 2733 2734 lpfc_get_vport_cfgparam(vport); 2735 shost->unique_id = instance; 2736 shost->max_id = LPFC_MAX_TARGET; 2737 shost->max_lun = vport->cfg_max_luns; 2738 shost->this_id = -1; 2739 shost->max_cmd_len = 16; 2740 if (phba->sli_rev == LPFC_SLI_REV4) { 2741 shost->dma_boundary = 2742 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2743 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2744 } 2745 2746 /* 2747 * Set initial can_queue value since 0 is no longer supported and 2748 * scsi_add_host will fail. This will be adjusted later based on the 2749 * max xri value determined in hba setup. 2750 */ 2751 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2752 if (dev != &phba->pcidev->dev) { 2753 shost->transportt = lpfc_vport_transport_template; 2754 vport->port_type = LPFC_NPIV_PORT; 2755 } else { 2756 shost->transportt = lpfc_transport_template; 2757 vport->port_type = LPFC_PHYSICAL_PORT; 2758 } 2759 2760 /* Initialize all internally managed lists. */ 2761 INIT_LIST_HEAD(&vport->fc_nodes); 2762 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2763 spin_lock_init(&vport->work_port_lock); 2764 2765 init_timer(&vport->fc_disctmo); 2766 vport->fc_disctmo.function = lpfc_disc_timeout; 2767 vport->fc_disctmo.data = (unsigned long)vport; 2768 2769 init_timer(&vport->fc_fdmitmo); 2770 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2771 vport->fc_fdmitmo.data = (unsigned long)vport; 2772 2773 init_timer(&vport->els_tmofunc); 2774 vport->els_tmofunc.function = lpfc_els_timeout; 2775 vport->els_tmofunc.data = (unsigned long)vport; 2776 2777 init_timer(&vport->delayed_disc_tmo); 2778 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2779 vport->delayed_disc_tmo.data = (unsigned long)vport; 2780 2781 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2782 if (error) 2783 goto out_put_shost; 2784 2785 spin_lock_irq(&phba->hbalock); 2786 list_add_tail(&vport->listentry, &phba->port_list); 2787 spin_unlock_irq(&phba->hbalock); 2788 return vport; 2789 2790 out_put_shost: 2791 scsi_host_put(shost); 2792 out: 2793 return NULL; 2794 } 2795 2796 /** 2797 * destroy_port - destroy an FC port 2798 * @vport: pointer to an lpfc virtual N_Port data structure. 2799 * 2800 * This routine destroys a FC port from the upper layer protocol. All the 2801 * resources associated with the port are released. 2802 **/ 2803 void 2804 destroy_port(struct lpfc_vport *vport) 2805 { 2806 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2807 struct lpfc_hba *phba = vport->phba; 2808 2809 lpfc_debugfs_terminate(vport); 2810 fc_remove_host(shost); 2811 scsi_remove_host(shost); 2812 2813 spin_lock_irq(&phba->hbalock); 2814 list_del_init(&vport->listentry); 2815 spin_unlock_irq(&phba->hbalock); 2816 2817 lpfc_cleanup(vport); 2818 return; 2819 } 2820 2821 /** 2822 * lpfc_get_instance - Get a unique integer ID 2823 * 2824 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2825 * uses the kernel idr facility to perform the task. 2826 * 2827 * Return codes: 2828 * instance - a unique integer ID allocated as the new instance. 2829 * -1 - lpfc get instance failed. 2830 **/ 2831 int 2832 lpfc_get_instance(void) 2833 { 2834 int instance = 0; 2835 2836 /* Assign an unused number */ 2837 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2838 return -1; 2839 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2840 return -1; 2841 return instance; 2842 } 2843 2844 /** 2845 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2846 * @shost: pointer to SCSI host data structure. 2847 * @time: elapsed time of the scan in jiffies. 2848 * 2849 * This routine is called by the SCSI layer with a SCSI host to determine 2850 * whether the scan host is finished. 2851 * 2852 * Note: there is no scan_start function as adapter initialization will have 2853 * asynchronously kicked off the link initialization. 2854 * 2855 * Return codes 2856 * 0 - SCSI host scan is not over yet. 2857 * 1 - SCSI host scan is over. 2858 **/ 2859 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2860 { 2861 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2862 struct lpfc_hba *phba = vport->phba; 2863 int stat = 0; 2864 2865 spin_lock_irq(shost->host_lock); 2866 2867 if (vport->load_flag & FC_UNLOADING) { 2868 stat = 1; 2869 goto finished; 2870 } 2871 if (time >= 30 * HZ) { 2872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2873 "0461 Scanning longer than 30 " 2874 "seconds. Continuing initialization\n"); 2875 stat = 1; 2876 goto finished; 2877 } 2878 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2879 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2880 "0465 Link down longer than 15 " 2881 "seconds. Continuing initialization\n"); 2882 stat = 1; 2883 goto finished; 2884 } 2885 2886 if (vport->port_state != LPFC_VPORT_READY) 2887 goto finished; 2888 if (vport->num_disc_nodes || vport->fc_prli_sent) 2889 goto finished; 2890 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2891 goto finished; 2892 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2893 goto finished; 2894 2895 stat = 1; 2896 2897 finished: 2898 spin_unlock_irq(shost->host_lock); 2899 return stat; 2900 } 2901 2902 /** 2903 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2904 * @shost: pointer to SCSI host data structure. 2905 * 2906 * This routine initializes a given SCSI host attributes on a FC port. The 2907 * SCSI host can be either on top of a physical port or a virtual port. 2908 **/ 2909 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2910 { 2911 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2912 struct lpfc_hba *phba = vport->phba; 2913 /* 2914 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2915 */ 2916 2917 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2918 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2919 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2920 2921 memset(fc_host_supported_fc4s(shost), 0, 2922 sizeof(fc_host_supported_fc4s(shost))); 2923 fc_host_supported_fc4s(shost)[2] = 1; 2924 fc_host_supported_fc4s(shost)[7] = 1; 2925 2926 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2927 sizeof fc_host_symbolic_name(shost)); 2928 2929 fc_host_supported_speeds(shost) = 0; 2930 if (phba->lmt & LMT_10Gb) 2931 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2932 if (phba->lmt & LMT_8Gb) 2933 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2934 if (phba->lmt & LMT_4Gb) 2935 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2936 if (phba->lmt & LMT_2Gb) 2937 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2938 if (phba->lmt & LMT_1Gb) 2939 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2940 2941 fc_host_maxframe_size(shost) = 2942 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2943 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2944 2945 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2946 2947 /* This value is also unchanging */ 2948 memset(fc_host_active_fc4s(shost), 0, 2949 sizeof(fc_host_active_fc4s(shost))); 2950 fc_host_active_fc4s(shost)[2] = 1; 2951 fc_host_active_fc4s(shost)[7] = 1; 2952 2953 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2954 spin_lock_irq(shost->host_lock); 2955 vport->load_flag &= ~FC_LOADING; 2956 spin_unlock_irq(shost->host_lock); 2957 } 2958 2959 /** 2960 * lpfc_stop_port_s3 - Stop SLI3 device port 2961 * @phba: pointer to lpfc hba data structure. 2962 * 2963 * This routine is invoked to stop an SLI3 device port, it stops the device 2964 * from generating interrupts and stops the device driver's timers for the 2965 * device. 2966 **/ 2967 static void 2968 lpfc_stop_port_s3(struct lpfc_hba *phba) 2969 { 2970 /* Clear all interrupt enable conditions */ 2971 writel(0, phba->HCregaddr); 2972 readl(phba->HCregaddr); /* flush */ 2973 /* Clear all pending interrupts */ 2974 writel(0xffffffff, phba->HAregaddr); 2975 readl(phba->HAregaddr); /* flush */ 2976 2977 /* Reset some HBA SLI setup states */ 2978 lpfc_stop_hba_timers(phba); 2979 phba->pport->work_port_events = 0; 2980 } 2981 2982 /** 2983 * lpfc_stop_port_s4 - Stop SLI4 device port 2984 * @phba: pointer to lpfc hba data structure. 2985 * 2986 * This routine is invoked to stop an SLI4 device port, it stops the device 2987 * from generating interrupts and stops the device driver's timers for the 2988 * device. 2989 **/ 2990 static void 2991 lpfc_stop_port_s4(struct lpfc_hba *phba) 2992 { 2993 /* Reset some HBA SLI4 setup states */ 2994 lpfc_stop_hba_timers(phba); 2995 phba->pport->work_port_events = 0; 2996 phba->sli4_hba.intr_enable = 0; 2997 } 2998 2999 /** 3000 * lpfc_stop_port - Wrapper function for stopping hba port 3001 * @phba: Pointer to HBA context object. 3002 * 3003 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3004 * the API jump table function pointer from the lpfc_hba struct. 3005 **/ 3006 void 3007 lpfc_stop_port(struct lpfc_hba *phba) 3008 { 3009 phba->lpfc_stop_port(phba); 3010 } 3011 3012 /** 3013 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3014 * @phba: Pointer to hba for which this call is being executed. 3015 * 3016 * This routine starts the timer waiting for the FCF rediscovery to complete. 3017 **/ 3018 void 3019 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3020 { 3021 unsigned long fcf_redisc_wait_tmo = 3022 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3023 /* Start fcf rediscovery wait period timer */ 3024 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3025 spin_lock_irq(&phba->hbalock); 3026 /* Allow action to new fcf asynchronous event */ 3027 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3028 /* Mark the FCF rediscovery pending state */ 3029 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3030 spin_unlock_irq(&phba->hbalock); 3031 } 3032 3033 /** 3034 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3035 * @ptr: Map to lpfc_hba data structure pointer. 3036 * 3037 * This routine is invoked when waiting for FCF table rediscover has been 3038 * timed out. If new FCF record(s) has (have) been discovered during the 3039 * wait period, a new FCF event shall be added to the FCOE async event 3040 * list, and then worker thread shall be waked up for processing from the 3041 * worker thread context. 3042 **/ 3043 void 3044 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3045 { 3046 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3047 3048 /* Don't send FCF rediscovery event if timer cancelled */ 3049 spin_lock_irq(&phba->hbalock); 3050 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3051 spin_unlock_irq(&phba->hbalock); 3052 return; 3053 } 3054 /* Clear FCF rediscovery timer pending flag */ 3055 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3056 /* FCF rediscovery event to worker thread */ 3057 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3058 spin_unlock_irq(&phba->hbalock); 3059 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3060 "2776 FCF rediscover quiescent timer expired\n"); 3061 /* wake up worker thread */ 3062 lpfc_worker_wake_up(phba); 3063 } 3064 3065 /** 3066 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3067 * @phba: pointer to lpfc hba data structure. 3068 * @acqe_link: pointer to the async link completion queue entry. 3069 * 3070 * This routine is to parse the SLI4 link-attention link fault code and 3071 * translate it into the base driver's read link attention mailbox command 3072 * status. 3073 * 3074 * Return: Link-attention status in terms of base driver's coding. 3075 **/ 3076 static uint16_t 3077 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3078 struct lpfc_acqe_link *acqe_link) 3079 { 3080 uint16_t latt_fault; 3081 3082 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3083 case LPFC_ASYNC_LINK_FAULT_NONE: 3084 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3085 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3086 latt_fault = 0; 3087 break; 3088 default: 3089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3090 "0398 Invalid link fault code: x%x\n", 3091 bf_get(lpfc_acqe_link_fault, acqe_link)); 3092 latt_fault = MBXERR_ERROR; 3093 break; 3094 } 3095 return latt_fault; 3096 } 3097 3098 /** 3099 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3100 * @phba: pointer to lpfc hba data structure. 3101 * @acqe_link: pointer to the async link completion queue entry. 3102 * 3103 * This routine is to parse the SLI4 link attention type and translate it 3104 * into the base driver's link attention type coding. 3105 * 3106 * Return: Link attention type in terms of base driver's coding. 3107 **/ 3108 static uint8_t 3109 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3110 struct lpfc_acqe_link *acqe_link) 3111 { 3112 uint8_t att_type; 3113 3114 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3115 case LPFC_ASYNC_LINK_STATUS_DOWN: 3116 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3117 att_type = LPFC_ATT_LINK_DOWN; 3118 break; 3119 case LPFC_ASYNC_LINK_STATUS_UP: 3120 /* Ignore physical link up events - wait for logical link up */ 3121 att_type = LPFC_ATT_RESERVED; 3122 break; 3123 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3124 att_type = LPFC_ATT_LINK_UP; 3125 break; 3126 default: 3127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3128 "0399 Invalid link attention type: x%x\n", 3129 bf_get(lpfc_acqe_link_status, acqe_link)); 3130 att_type = LPFC_ATT_RESERVED; 3131 break; 3132 } 3133 return att_type; 3134 } 3135 3136 /** 3137 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3138 * @phba: pointer to lpfc hba data structure. 3139 * @acqe_link: pointer to the async link completion queue entry. 3140 * 3141 * This routine is to parse the SLI4 link-attention link speed and translate 3142 * it into the base driver's link-attention link speed coding. 3143 * 3144 * Return: Link-attention link speed in terms of base driver's coding. 3145 **/ 3146 static uint8_t 3147 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3148 struct lpfc_acqe_link *acqe_link) 3149 { 3150 uint8_t link_speed; 3151 3152 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3153 case LPFC_ASYNC_LINK_SPEED_ZERO: 3154 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3155 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3156 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3157 break; 3158 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3159 link_speed = LPFC_LINK_SPEED_1GHZ; 3160 break; 3161 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3162 link_speed = LPFC_LINK_SPEED_10GHZ; 3163 break; 3164 default: 3165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3166 "0483 Invalid link-attention link speed: x%x\n", 3167 bf_get(lpfc_acqe_link_speed, acqe_link)); 3168 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3169 break; 3170 } 3171 return link_speed; 3172 } 3173 3174 /** 3175 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3176 * @phba: pointer to lpfc hba data structure. 3177 * @acqe_link: pointer to the async link completion queue entry. 3178 * 3179 * This routine is to handle the SLI4 asynchronous FCoE link event. 3180 **/ 3181 static void 3182 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3183 struct lpfc_acqe_link *acqe_link) 3184 { 3185 struct lpfc_dmabuf *mp; 3186 LPFC_MBOXQ_t *pmb; 3187 MAILBOX_t *mb; 3188 struct lpfc_mbx_read_top *la; 3189 uint8_t att_type; 3190 int rc; 3191 3192 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3193 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3194 return; 3195 phba->fcoe_eventtag = acqe_link->event_tag; 3196 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3197 if (!pmb) { 3198 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3199 "0395 The mboxq allocation failed\n"); 3200 return; 3201 } 3202 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3203 if (!mp) { 3204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3205 "0396 The lpfc_dmabuf allocation failed\n"); 3206 goto out_free_pmb; 3207 } 3208 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3209 if (!mp->virt) { 3210 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3211 "0397 The mbuf allocation failed\n"); 3212 goto out_free_dmabuf; 3213 } 3214 3215 /* Cleanup any outstanding ELS commands */ 3216 lpfc_els_flush_all_cmd(phba); 3217 3218 /* Block ELS IOCBs until we have done process link event */ 3219 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3220 3221 /* Update link event statistics */ 3222 phba->sli.slistat.link_event++; 3223 3224 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3225 lpfc_read_topology(phba, pmb, mp); 3226 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3227 pmb->vport = phba->pport; 3228 3229 /* Keep the link status for extra SLI4 state machine reference */ 3230 phba->sli4_hba.link_state.speed = 3231 bf_get(lpfc_acqe_link_speed, acqe_link); 3232 phba->sli4_hba.link_state.duplex = 3233 bf_get(lpfc_acqe_link_duplex, acqe_link); 3234 phba->sli4_hba.link_state.status = 3235 bf_get(lpfc_acqe_link_status, acqe_link); 3236 phba->sli4_hba.link_state.type = 3237 bf_get(lpfc_acqe_link_type, acqe_link); 3238 phba->sli4_hba.link_state.number = 3239 bf_get(lpfc_acqe_link_number, acqe_link); 3240 phba->sli4_hba.link_state.fault = 3241 bf_get(lpfc_acqe_link_fault, acqe_link); 3242 phba->sli4_hba.link_state.logical_speed = 3243 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3244 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3245 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3246 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3247 "Logical speed:%dMbps Fault:%d\n", 3248 phba->sli4_hba.link_state.speed, 3249 phba->sli4_hba.link_state.topology, 3250 phba->sli4_hba.link_state.status, 3251 phba->sli4_hba.link_state.type, 3252 phba->sli4_hba.link_state.number, 3253 phba->sli4_hba.link_state.logical_speed * 10, 3254 phba->sli4_hba.link_state.fault); 3255 /* 3256 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3257 * topology info. Note: Optional for non FC-AL ports. 3258 */ 3259 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3260 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3261 if (rc == MBX_NOT_FINISHED) 3262 goto out_free_dmabuf; 3263 return; 3264 } 3265 /* 3266 * For FCoE Mode: fill in all the topology information we need and call 3267 * the READ_TOPOLOGY completion routine to continue without actually 3268 * sending the READ_TOPOLOGY mailbox command to the port. 3269 */ 3270 /* Parse and translate status field */ 3271 mb = &pmb->u.mb; 3272 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3273 3274 /* Parse and translate link attention fields */ 3275 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3276 la->eventTag = acqe_link->event_tag; 3277 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3278 bf_set(lpfc_mbx_read_top_link_spd, la, 3279 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3280 3281 /* Fake the the following irrelvant fields */ 3282 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3283 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3284 bf_set(lpfc_mbx_read_top_il, la, 0); 3285 bf_set(lpfc_mbx_read_top_pb, la, 0); 3286 bf_set(lpfc_mbx_read_top_fa, la, 0); 3287 bf_set(lpfc_mbx_read_top_mm, la, 0); 3288 3289 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3290 lpfc_mbx_cmpl_read_topology(phba, pmb); 3291 3292 return; 3293 3294 out_free_dmabuf: 3295 kfree(mp); 3296 out_free_pmb: 3297 mempool_free(pmb, phba->mbox_mem_pool); 3298 } 3299 3300 /** 3301 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3302 * @phba: pointer to lpfc hba data structure. 3303 * @acqe_fc: pointer to the async fc completion queue entry. 3304 * 3305 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3306 * that the event was received and then issue a read_topology mailbox command so 3307 * that the rest of the driver will treat it the same as SLI3. 3308 **/ 3309 static void 3310 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3311 { 3312 struct lpfc_dmabuf *mp; 3313 LPFC_MBOXQ_t *pmb; 3314 int rc; 3315 3316 if (bf_get(lpfc_trailer_type, acqe_fc) != 3317 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3318 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3319 "2895 Non FC link Event detected.(%d)\n", 3320 bf_get(lpfc_trailer_type, acqe_fc)); 3321 return; 3322 } 3323 /* Keep the link status for extra SLI4 state machine reference */ 3324 phba->sli4_hba.link_state.speed = 3325 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3326 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3327 phba->sli4_hba.link_state.topology = 3328 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3329 phba->sli4_hba.link_state.status = 3330 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3331 phba->sli4_hba.link_state.type = 3332 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3333 phba->sli4_hba.link_state.number = 3334 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3335 phba->sli4_hba.link_state.fault = 3336 bf_get(lpfc_acqe_link_fault, acqe_fc); 3337 phba->sli4_hba.link_state.logical_speed = 3338 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3339 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3340 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3341 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3342 "%dMbps Fault:%d\n", 3343 phba->sli4_hba.link_state.speed, 3344 phba->sli4_hba.link_state.topology, 3345 phba->sli4_hba.link_state.status, 3346 phba->sli4_hba.link_state.type, 3347 phba->sli4_hba.link_state.number, 3348 phba->sli4_hba.link_state.logical_speed * 10, 3349 phba->sli4_hba.link_state.fault); 3350 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3351 if (!pmb) { 3352 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3353 "2897 The mboxq allocation failed\n"); 3354 return; 3355 } 3356 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3357 if (!mp) { 3358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3359 "2898 The lpfc_dmabuf allocation failed\n"); 3360 goto out_free_pmb; 3361 } 3362 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3363 if (!mp->virt) { 3364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3365 "2899 The mbuf allocation failed\n"); 3366 goto out_free_dmabuf; 3367 } 3368 3369 /* Cleanup any outstanding ELS commands */ 3370 lpfc_els_flush_all_cmd(phba); 3371 3372 /* Block ELS IOCBs until we have done process link event */ 3373 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3374 3375 /* Update link event statistics */ 3376 phba->sli.slistat.link_event++; 3377 3378 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3379 lpfc_read_topology(phba, pmb, mp); 3380 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3381 pmb->vport = phba->pport; 3382 3383 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3384 if (rc == MBX_NOT_FINISHED) 3385 goto out_free_dmabuf; 3386 return; 3387 3388 out_free_dmabuf: 3389 kfree(mp); 3390 out_free_pmb: 3391 mempool_free(pmb, phba->mbox_mem_pool); 3392 } 3393 3394 /** 3395 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3396 * @phba: pointer to lpfc hba data structure. 3397 * @acqe_fc: pointer to the async SLI completion queue entry. 3398 * 3399 * This routine is to handle the SLI4 asynchronous SLI events. 3400 **/ 3401 static void 3402 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3403 { 3404 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3405 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3406 "x%08x SLI Event Type:%d", 3407 acqe_sli->event_data1, acqe_sli->event_data2, 3408 bf_get(lpfc_trailer_type, acqe_sli)); 3409 return; 3410 } 3411 3412 /** 3413 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3414 * @vport: pointer to vport data structure. 3415 * 3416 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3417 * response to a CVL event. 3418 * 3419 * Return the pointer to the ndlp with the vport if successful, otherwise 3420 * return NULL. 3421 **/ 3422 static struct lpfc_nodelist * 3423 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3424 { 3425 struct lpfc_nodelist *ndlp; 3426 struct Scsi_Host *shost; 3427 struct lpfc_hba *phba; 3428 3429 if (!vport) 3430 return NULL; 3431 phba = vport->phba; 3432 if (!phba) 3433 return NULL; 3434 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3435 if (!ndlp) { 3436 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3437 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3438 if (!ndlp) 3439 return 0; 3440 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3441 /* Set the node type */ 3442 ndlp->nlp_type |= NLP_FABRIC; 3443 /* Put ndlp onto node list */ 3444 lpfc_enqueue_node(vport, ndlp); 3445 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3446 /* re-setup ndlp without removing from node list */ 3447 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3448 if (!ndlp) 3449 return 0; 3450 } 3451 if ((phba->pport->port_state < LPFC_FLOGI) && 3452 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3453 return NULL; 3454 /* If virtual link is not yet instantiated ignore CVL */ 3455 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3456 && (vport->port_state != LPFC_VPORT_FAILED)) 3457 return NULL; 3458 shost = lpfc_shost_from_vport(vport); 3459 if (!shost) 3460 return NULL; 3461 lpfc_linkdown_port(vport); 3462 lpfc_cleanup_pending_mbox(vport); 3463 spin_lock_irq(shost->host_lock); 3464 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3465 spin_unlock_irq(shost->host_lock); 3466 3467 return ndlp; 3468 } 3469 3470 /** 3471 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3472 * @vport: pointer to lpfc hba data structure. 3473 * 3474 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3475 * response to a FCF dead event. 3476 **/ 3477 static void 3478 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3479 { 3480 struct lpfc_vport **vports; 3481 int i; 3482 3483 vports = lpfc_create_vport_work_array(phba); 3484 if (vports) 3485 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3486 lpfc_sli4_perform_vport_cvl(vports[i]); 3487 lpfc_destroy_vport_work_array(phba, vports); 3488 } 3489 3490 /** 3491 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3492 * @phba: pointer to lpfc hba data structure. 3493 * @acqe_link: pointer to the async fcoe completion queue entry. 3494 * 3495 * This routine is to handle the SLI4 asynchronous fcoe event. 3496 **/ 3497 static void 3498 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3499 struct lpfc_acqe_fip *acqe_fip) 3500 { 3501 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3502 int rc; 3503 struct lpfc_vport *vport; 3504 struct lpfc_nodelist *ndlp; 3505 struct Scsi_Host *shost; 3506 int active_vlink_present; 3507 struct lpfc_vport **vports; 3508 int i; 3509 3510 phba->fc_eventTag = acqe_fip->event_tag; 3511 phba->fcoe_eventtag = acqe_fip->event_tag; 3512 switch (event_type) { 3513 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3514 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3515 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3516 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3517 LOG_DISCOVERY, 3518 "2546 New FCF event, evt_tag:x%x, " 3519 "index:x%x\n", 3520 acqe_fip->event_tag, 3521 acqe_fip->index); 3522 else 3523 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3524 LOG_DISCOVERY, 3525 "2788 FCF param modified event, " 3526 "evt_tag:x%x, index:x%x\n", 3527 acqe_fip->event_tag, 3528 acqe_fip->index); 3529 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3530 /* 3531 * During period of FCF discovery, read the FCF 3532 * table record indexed by the event to update 3533 * FCF roundrobin failover eligible FCF bmask. 3534 */ 3535 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3536 LOG_DISCOVERY, 3537 "2779 Read FCF (x%x) for updating " 3538 "roundrobin FCF failover bmask\n", 3539 acqe_fip->index); 3540 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3541 } 3542 3543 /* If the FCF discovery is in progress, do nothing. */ 3544 spin_lock_irq(&phba->hbalock); 3545 if (phba->hba_flag & FCF_TS_INPROG) { 3546 spin_unlock_irq(&phba->hbalock); 3547 break; 3548 } 3549 /* If fast FCF failover rescan event is pending, do nothing */ 3550 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3551 spin_unlock_irq(&phba->hbalock); 3552 break; 3553 } 3554 3555 /* If the FCF has been in discovered state, do nothing. */ 3556 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3557 spin_unlock_irq(&phba->hbalock); 3558 break; 3559 } 3560 spin_unlock_irq(&phba->hbalock); 3561 3562 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3563 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3564 "2770 Start FCF table scan per async FCF " 3565 "event, evt_tag:x%x, index:x%x\n", 3566 acqe_fip->event_tag, acqe_fip->index); 3567 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3568 LPFC_FCOE_FCF_GET_FIRST); 3569 if (rc) 3570 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3571 "2547 Issue FCF scan read FCF mailbox " 3572 "command failed (x%x)\n", rc); 3573 break; 3574 3575 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3577 "2548 FCF Table full count 0x%x tag 0x%x\n", 3578 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3579 acqe_fip->event_tag); 3580 break; 3581 3582 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3583 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3584 "2549 FCF (x%x) disconnected from network, " 3585 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3586 /* 3587 * If we are in the middle of FCF failover process, clear 3588 * the corresponding FCF bit in the roundrobin bitmap. 3589 */ 3590 spin_lock_irq(&phba->hbalock); 3591 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3592 spin_unlock_irq(&phba->hbalock); 3593 /* Update FLOGI FCF failover eligible FCF bmask */ 3594 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3595 break; 3596 } 3597 spin_unlock_irq(&phba->hbalock); 3598 3599 /* If the event is not for currently used fcf do nothing */ 3600 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3601 break; 3602 3603 /* 3604 * Otherwise, request the port to rediscover the entire FCF 3605 * table for a fast recovery from case that the current FCF 3606 * is no longer valid as we are not in the middle of FCF 3607 * failover process already. 3608 */ 3609 spin_lock_irq(&phba->hbalock); 3610 /* Mark the fast failover process in progress */ 3611 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3612 spin_unlock_irq(&phba->hbalock); 3613 3614 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3615 "2771 Start FCF fast failover process due to " 3616 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3617 "\n", acqe_fip->event_tag, acqe_fip->index); 3618 rc = lpfc_sli4_redisc_fcf_table(phba); 3619 if (rc) { 3620 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3621 LOG_DISCOVERY, 3622 "2772 Issue FCF rediscover mabilbox " 3623 "command failed, fail through to FCF " 3624 "dead event\n"); 3625 spin_lock_irq(&phba->hbalock); 3626 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3627 spin_unlock_irq(&phba->hbalock); 3628 /* 3629 * Last resort will fail over by treating this 3630 * as a link down to FCF registration. 3631 */ 3632 lpfc_sli4_fcf_dead_failthrough(phba); 3633 } else { 3634 /* Reset FCF roundrobin bmask for new discovery */ 3635 memset(phba->fcf.fcf_rr_bmask, 0, 3636 sizeof(*phba->fcf.fcf_rr_bmask)); 3637 /* 3638 * Handling fast FCF failover to a DEAD FCF event is 3639 * considered equalivant to receiving CVL to all vports. 3640 */ 3641 lpfc_sli4_perform_all_vport_cvl(phba); 3642 } 3643 break; 3644 case LPFC_FIP_EVENT_TYPE_CVL: 3645 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3646 "2718 Clear Virtual Link Received for VPI 0x%x" 3647 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3648 3649 vport = lpfc_find_vport_by_vpid(phba, 3650 acqe_fip->index - phba->vpi_base); 3651 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3652 if (!ndlp) 3653 break; 3654 active_vlink_present = 0; 3655 3656 vports = lpfc_create_vport_work_array(phba); 3657 if (vports) { 3658 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3659 i++) { 3660 if ((!(vports[i]->fc_flag & 3661 FC_VPORT_CVL_RCVD)) && 3662 (vports[i]->port_state > LPFC_FDISC)) { 3663 active_vlink_present = 1; 3664 break; 3665 } 3666 } 3667 lpfc_destroy_vport_work_array(phba, vports); 3668 } 3669 3670 if (active_vlink_present) { 3671 /* 3672 * If there are other active VLinks present, 3673 * re-instantiate the Vlink using FDISC. 3674 */ 3675 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3676 shost = lpfc_shost_from_vport(vport); 3677 spin_lock_irq(shost->host_lock); 3678 ndlp->nlp_flag |= NLP_DELAY_TMO; 3679 spin_unlock_irq(shost->host_lock); 3680 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3681 vport->port_state = LPFC_FDISC; 3682 } else { 3683 /* 3684 * Otherwise, we request port to rediscover 3685 * the entire FCF table for a fast recovery 3686 * from possible case that the current FCF 3687 * is no longer valid if we are not already 3688 * in the FCF failover process. 3689 */ 3690 spin_lock_irq(&phba->hbalock); 3691 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3692 spin_unlock_irq(&phba->hbalock); 3693 break; 3694 } 3695 /* Mark the fast failover process in progress */ 3696 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3697 spin_unlock_irq(&phba->hbalock); 3698 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3699 LOG_DISCOVERY, 3700 "2773 Start FCF failover per CVL, " 3701 "evt_tag:x%x\n", acqe_fip->event_tag); 3702 rc = lpfc_sli4_redisc_fcf_table(phba); 3703 if (rc) { 3704 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3705 LOG_DISCOVERY, 3706 "2774 Issue FCF rediscover " 3707 "mabilbox command failed, " 3708 "through to CVL event\n"); 3709 spin_lock_irq(&phba->hbalock); 3710 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3711 spin_unlock_irq(&phba->hbalock); 3712 /* 3713 * Last resort will be re-try on the 3714 * the current registered FCF entry. 3715 */ 3716 lpfc_retry_pport_discovery(phba); 3717 } else 3718 /* 3719 * Reset FCF roundrobin bmask for new 3720 * discovery. 3721 */ 3722 memset(phba->fcf.fcf_rr_bmask, 0, 3723 sizeof(*phba->fcf.fcf_rr_bmask)); 3724 } 3725 break; 3726 default: 3727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3728 "0288 Unknown FCoE event type 0x%x event tag " 3729 "0x%x\n", event_type, acqe_fip->event_tag); 3730 break; 3731 } 3732 } 3733 3734 /** 3735 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3736 * @phba: pointer to lpfc hba data structure. 3737 * @acqe_link: pointer to the async dcbx completion queue entry. 3738 * 3739 * This routine is to handle the SLI4 asynchronous dcbx event. 3740 **/ 3741 static void 3742 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3743 struct lpfc_acqe_dcbx *acqe_dcbx) 3744 { 3745 phba->fc_eventTag = acqe_dcbx->event_tag; 3746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3747 "0290 The SLI4 DCBX asynchronous event is not " 3748 "handled yet\n"); 3749 } 3750 3751 /** 3752 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3753 * @phba: pointer to lpfc hba data structure. 3754 * @acqe_link: pointer to the async grp5 completion queue entry. 3755 * 3756 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3757 * is an asynchronous notified of a logical link speed change. The Port 3758 * reports the logical link speed in units of 10Mbps. 3759 **/ 3760 static void 3761 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3762 struct lpfc_acqe_grp5 *acqe_grp5) 3763 { 3764 uint16_t prev_ll_spd; 3765 3766 phba->fc_eventTag = acqe_grp5->event_tag; 3767 phba->fcoe_eventtag = acqe_grp5->event_tag; 3768 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3769 phba->sli4_hba.link_state.logical_speed = 3770 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3771 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3772 "2789 GRP5 Async Event: Updating logical link speed " 3773 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3774 (phba->sli4_hba.link_state.logical_speed*10)); 3775 } 3776 3777 /** 3778 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3779 * @phba: pointer to lpfc hba data structure. 3780 * 3781 * This routine is invoked by the worker thread to process all the pending 3782 * SLI4 asynchronous events. 3783 **/ 3784 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3785 { 3786 struct lpfc_cq_event *cq_event; 3787 3788 /* First, declare the async event has been handled */ 3789 spin_lock_irq(&phba->hbalock); 3790 phba->hba_flag &= ~ASYNC_EVENT; 3791 spin_unlock_irq(&phba->hbalock); 3792 /* Now, handle all the async events */ 3793 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3794 /* Get the first event from the head of the event queue */ 3795 spin_lock_irq(&phba->hbalock); 3796 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3797 cq_event, struct lpfc_cq_event, list); 3798 spin_unlock_irq(&phba->hbalock); 3799 /* Process the asynchronous event */ 3800 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3801 case LPFC_TRAILER_CODE_LINK: 3802 lpfc_sli4_async_link_evt(phba, 3803 &cq_event->cqe.acqe_link); 3804 break; 3805 case LPFC_TRAILER_CODE_FCOE: 3806 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3807 break; 3808 case LPFC_TRAILER_CODE_DCBX: 3809 lpfc_sli4_async_dcbx_evt(phba, 3810 &cq_event->cqe.acqe_dcbx); 3811 break; 3812 case LPFC_TRAILER_CODE_GRP5: 3813 lpfc_sli4_async_grp5_evt(phba, 3814 &cq_event->cqe.acqe_grp5); 3815 break; 3816 case LPFC_TRAILER_CODE_FC: 3817 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3818 break; 3819 case LPFC_TRAILER_CODE_SLI: 3820 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3821 break; 3822 default: 3823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3824 "1804 Invalid asynchrous event code: " 3825 "x%x\n", bf_get(lpfc_trailer_code, 3826 &cq_event->cqe.mcqe_cmpl)); 3827 break; 3828 } 3829 /* Free the completion event processed to the free pool */ 3830 lpfc_sli4_cq_event_release(phba, cq_event); 3831 } 3832 } 3833 3834 /** 3835 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3836 * @phba: pointer to lpfc hba data structure. 3837 * 3838 * This routine is invoked by the worker thread to process FCF table 3839 * rediscovery pending completion event. 3840 **/ 3841 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3842 { 3843 int rc; 3844 3845 spin_lock_irq(&phba->hbalock); 3846 /* Clear FCF rediscovery timeout event */ 3847 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3848 /* Clear driver fast failover FCF record flag */ 3849 phba->fcf.failover_rec.flag = 0; 3850 /* Set state for FCF fast failover */ 3851 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3852 spin_unlock_irq(&phba->hbalock); 3853 3854 /* Scan FCF table from the first entry to re-discover SAN */ 3855 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3856 "2777 Start post-quiescent FCF table scan\n"); 3857 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3858 if (rc) 3859 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3860 "2747 Issue FCF scan read FCF mailbox " 3861 "command failed 0x%x\n", rc); 3862 } 3863 3864 /** 3865 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3866 * @phba: pointer to lpfc hba data structure. 3867 * @dev_grp: The HBA PCI-Device group number. 3868 * 3869 * This routine is invoked to set up the per HBA PCI-Device group function 3870 * API jump table entries. 3871 * 3872 * Return: 0 if success, otherwise -ENODEV 3873 **/ 3874 int 3875 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3876 { 3877 int rc; 3878 3879 /* Set up lpfc PCI-device group */ 3880 phba->pci_dev_grp = dev_grp; 3881 3882 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3883 if (dev_grp == LPFC_PCI_DEV_OC) 3884 phba->sli_rev = LPFC_SLI_REV4; 3885 3886 /* Set up device INIT API function jump table */ 3887 rc = lpfc_init_api_table_setup(phba, dev_grp); 3888 if (rc) 3889 return -ENODEV; 3890 /* Set up SCSI API function jump table */ 3891 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3892 if (rc) 3893 return -ENODEV; 3894 /* Set up SLI API function jump table */ 3895 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3896 if (rc) 3897 return -ENODEV; 3898 /* Set up MBOX API function jump table */ 3899 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3900 if (rc) 3901 return -ENODEV; 3902 3903 return 0; 3904 } 3905 3906 /** 3907 * lpfc_log_intr_mode - Log the active interrupt mode 3908 * @phba: pointer to lpfc hba data structure. 3909 * @intr_mode: active interrupt mode adopted. 3910 * 3911 * This routine it invoked to log the currently used active interrupt mode 3912 * to the device. 3913 **/ 3914 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3915 { 3916 switch (intr_mode) { 3917 case 0: 3918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3919 "0470 Enable INTx interrupt mode.\n"); 3920 break; 3921 case 1: 3922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3923 "0481 Enabled MSI interrupt mode.\n"); 3924 break; 3925 case 2: 3926 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3927 "0480 Enabled MSI-X interrupt mode.\n"); 3928 break; 3929 default: 3930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3931 "0482 Illegal interrupt mode.\n"); 3932 break; 3933 } 3934 return; 3935 } 3936 3937 /** 3938 * lpfc_enable_pci_dev - Enable a generic PCI device. 3939 * @phba: pointer to lpfc hba data structure. 3940 * 3941 * This routine is invoked to enable the PCI device that is common to all 3942 * PCI devices. 3943 * 3944 * Return codes 3945 * 0 - successful 3946 * other values - error 3947 **/ 3948 static int 3949 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3950 { 3951 struct pci_dev *pdev; 3952 int bars; 3953 3954 /* Obtain PCI device reference */ 3955 if (!phba->pcidev) 3956 goto out_error; 3957 else 3958 pdev = phba->pcidev; 3959 /* Select PCI BARs */ 3960 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3961 /* Enable PCI device */ 3962 if (pci_enable_device_mem(pdev)) 3963 goto out_error; 3964 /* Request PCI resource for the device */ 3965 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3966 goto out_disable_device; 3967 /* Set up device as PCI master and save state for EEH */ 3968 pci_set_master(pdev); 3969 pci_try_set_mwi(pdev); 3970 pci_save_state(pdev); 3971 3972 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 3973 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 3974 pdev->needs_freset = 1; 3975 3976 return 0; 3977 3978 out_disable_device: 3979 pci_disable_device(pdev); 3980 out_error: 3981 return -ENODEV; 3982 } 3983 3984 /** 3985 * lpfc_disable_pci_dev - Disable a generic PCI device. 3986 * @phba: pointer to lpfc hba data structure. 3987 * 3988 * This routine is invoked to disable the PCI device that is common to all 3989 * PCI devices. 3990 **/ 3991 static void 3992 lpfc_disable_pci_dev(struct lpfc_hba *phba) 3993 { 3994 struct pci_dev *pdev; 3995 int bars; 3996 3997 /* Obtain PCI device reference */ 3998 if (!phba->pcidev) 3999 return; 4000 else 4001 pdev = phba->pcidev; 4002 /* Select PCI BARs */ 4003 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4004 /* Release PCI resource and disable PCI device */ 4005 pci_release_selected_regions(pdev, bars); 4006 pci_disable_device(pdev); 4007 /* Null out PCI private reference to driver */ 4008 pci_set_drvdata(pdev, NULL); 4009 4010 return; 4011 } 4012 4013 /** 4014 * lpfc_reset_hba - Reset a hba 4015 * @phba: pointer to lpfc hba data structure. 4016 * 4017 * This routine is invoked to reset a hba device. It brings the HBA 4018 * offline, performs a board restart, and then brings the board back 4019 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4020 * on outstanding mailbox commands. 4021 **/ 4022 void 4023 lpfc_reset_hba(struct lpfc_hba *phba) 4024 { 4025 /* If resets are disabled then set error state and return. */ 4026 if (!phba->cfg_enable_hba_reset) { 4027 phba->link_state = LPFC_HBA_ERROR; 4028 return; 4029 } 4030 lpfc_offline_prep(phba); 4031 lpfc_offline(phba); 4032 lpfc_sli_brdrestart(phba); 4033 lpfc_online(phba); 4034 lpfc_unblock_mgmt_io(phba); 4035 } 4036 4037 /** 4038 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4039 * @phba: pointer to lpfc hba data structure. 4040 * @nr_vfn: number of virtual functions to be enabled. 4041 * 4042 * This function enables the PCI SR-IOV virtual functions to a physical 4043 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4044 * enable the number of virtual functions to the physical function. As 4045 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4046 * API call does not considered as an error condition for most of the device. 4047 **/ 4048 int 4049 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4050 { 4051 struct pci_dev *pdev = phba->pcidev; 4052 int rc; 4053 4054 rc = pci_enable_sriov(pdev, nr_vfn); 4055 if (rc) { 4056 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4057 "2806 Failed to enable sriov on this device " 4058 "with vfn number nr_vf:%d, rc:%d\n", 4059 nr_vfn, rc); 4060 } else 4061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4062 "2807 Successful enable sriov on this device " 4063 "with vfn number nr_vf:%d\n", nr_vfn); 4064 return rc; 4065 } 4066 4067 /** 4068 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4069 * @phba: pointer to lpfc hba data structure. 4070 * 4071 * This routine is invoked to set up the driver internal resources specific to 4072 * support the SLI-3 HBA device it attached to. 4073 * 4074 * Return codes 4075 * 0 - successful 4076 * other values - error 4077 **/ 4078 static int 4079 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4080 { 4081 struct lpfc_sli *psli; 4082 int rc; 4083 4084 /* 4085 * Initialize timers used by driver 4086 */ 4087 4088 /* Heartbeat timer */ 4089 init_timer(&phba->hb_tmofunc); 4090 phba->hb_tmofunc.function = lpfc_hb_timeout; 4091 phba->hb_tmofunc.data = (unsigned long)phba; 4092 4093 psli = &phba->sli; 4094 /* MBOX heartbeat timer */ 4095 init_timer(&psli->mbox_tmo); 4096 psli->mbox_tmo.function = lpfc_mbox_timeout; 4097 psli->mbox_tmo.data = (unsigned long) phba; 4098 /* FCP polling mode timer */ 4099 init_timer(&phba->fcp_poll_timer); 4100 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4101 phba->fcp_poll_timer.data = (unsigned long) phba; 4102 /* Fabric block timer */ 4103 init_timer(&phba->fabric_block_timer); 4104 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4105 phba->fabric_block_timer.data = (unsigned long) phba; 4106 /* EA polling mode timer */ 4107 init_timer(&phba->eratt_poll); 4108 phba->eratt_poll.function = lpfc_poll_eratt; 4109 phba->eratt_poll.data = (unsigned long) phba; 4110 4111 /* Host attention work mask setup */ 4112 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4113 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4114 4115 /* Get all the module params for configuring this host */ 4116 lpfc_get_cfgparam(phba); 4117 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4118 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4119 /* check for menlo minimum sg count */ 4120 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4121 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4122 } 4123 4124 /* 4125 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4126 * used to create the sg_dma_buf_pool must be dynamically calculated. 4127 * 2 segments are added since the IOCB needs a command and response bde. 4128 */ 4129 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4130 sizeof(struct fcp_rsp) + 4131 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4132 4133 if (phba->cfg_enable_bg) { 4134 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4135 phba->cfg_sg_dma_buf_size += 4136 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4137 } 4138 4139 /* Also reinitialize the host templates with new values. */ 4140 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4141 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4142 4143 phba->max_vpi = LPFC_MAX_VPI; 4144 /* This will be set to correct value after config_port mbox */ 4145 phba->max_vports = 0; 4146 4147 /* 4148 * Initialize the SLI Layer to run with lpfc HBAs. 4149 */ 4150 lpfc_sli_setup(phba); 4151 lpfc_sli_queue_setup(phba); 4152 4153 /* Allocate device driver memory */ 4154 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4155 return -ENOMEM; 4156 4157 /* 4158 * Enable sr-iov virtual functions if supported and configured 4159 * through the module parameter. 4160 */ 4161 if (phba->cfg_sriov_nr_virtfn > 0) { 4162 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4163 phba->cfg_sriov_nr_virtfn); 4164 if (rc) { 4165 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4166 "2808 Requested number of SR-IOV " 4167 "virtual functions (%d) is not " 4168 "supported\n", 4169 phba->cfg_sriov_nr_virtfn); 4170 phba->cfg_sriov_nr_virtfn = 0; 4171 } 4172 } 4173 4174 return 0; 4175 } 4176 4177 /** 4178 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4179 * @phba: pointer to lpfc hba data structure. 4180 * 4181 * This routine is invoked to unset the driver internal resources set up 4182 * specific for supporting the SLI-3 HBA device it attached to. 4183 **/ 4184 static void 4185 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4186 { 4187 /* Free device driver memory allocated */ 4188 lpfc_mem_free_all(phba); 4189 4190 return; 4191 } 4192 4193 /** 4194 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4195 * @phba: pointer to lpfc hba data structure. 4196 * 4197 * This routine is invoked to set up the driver internal resources specific to 4198 * support the SLI-4 HBA device it attached to. 4199 * 4200 * Return codes 4201 * 0 - successful 4202 * other values - error 4203 **/ 4204 static int 4205 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4206 { 4207 struct lpfc_sli *psli; 4208 LPFC_MBOXQ_t *mboxq; 4209 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4210 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4211 struct lpfc_mqe *mqe; 4212 int longs, sli_family; 4213 4214 /* Before proceed, wait for POST done and device ready */ 4215 rc = lpfc_sli4_post_status_check(phba); 4216 if (rc) 4217 return -ENODEV; 4218 4219 /* 4220 * Initialize timers used by driver 4221 */ 4222 4223 /* Heartbeat timer */ 4224 init_timer(&phba->hb_tmofunc); 4225 phba->hb_tmofunc.function = lpfc_hb_timeout; 4226 phba->hb_tmofunc.data = (unsigned long)phba; 4227 init_timer(&phba->rrq_tmr); 4228 phba->rrq_tmr.function = lpfc_rrq_timeout; 4229 phba->rrq_tmr.data = (unsigned long)phba; 4230 4231 psli = &phba->sli; 4232 /* MBOX heartbeat timer */ 4233 init_timer(&psli->mbox_tmo); 4234 psli->mbox_tmo.function = lpfc_mbox_timeout; 4235 psli->mbox_tmo.data = (unsigned long) phba; 4236 /* Fabric block timer */ 4237 init_timer(&phba->fabric_block_timer); 4238 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4239 phba->fabric_block_timer.data = (unsigned long) phba; 4240 /* EA polling mode timer */ 4241 init_timer(&phba->eratt_poll); 4242 phba->eratt_poll.function = lpfc_poll_eratt; 4243 phba->eratt_poll.data = (unsigned long) phba; 4244 /* FCF rediscover timer */ 4245 init_timer(&phba->fcf.redisc_wait); 4246 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4247 phba->fcf.redisc_wait.data = (unsigned long)phba; 4248 4249 /* 4250 * Control structure for handling external multi-buffer mailbox 4251 * command pass-through. 4252 */ 4253 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4254 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4255 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4256 4257 /* 4258 * We need to do a READ_CONFIG mailbox command here before 4259 * calling lpfc_get_cfgparam. For VFs this will report the 4260 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4261 * All of the resources allocated 4262 * for this Port are tied to these values. 4263 */ 4264 /* Get all the module params for configuring this host */ 4265 lpfc_get_cfgparam(phba); 4266 phba->max_vpi = LPFC_MAX_VPI; 4267 /* This will be set to correct value after the read_config mbox */ 4268 phba->max_vports = 0; 4269 4270 /* Program the default value of vlan_id and fc_map */ 4271 phba->valid_vlan = 0; 4272 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4273 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4274 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4275 4276 /* 4277 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4278 * used to create the sg_dma_buf_pool must be dynamically calculated. 4279 * 2 segments are added since the IOCB needs a command and response bde. 4280 * To insure that the scsi sgl does not cross a 4k page boundary only 4281 * sgl sizes of must be a power of 2. 4282 */ 4283 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4284 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4285 4286 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4287 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4288 switch (sli_family) { 4289 case LPFC_SLI_INTF_FAMILY_BE2: 4290 case LPFC_SLI_INTF_FAMILY_BE3: 4291 /* There is a single hint for BE - 2 pages per BPL. */ 4292 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4293 LPFC_SLI_INTF_SLI_HINT1_1) 4294 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4295 break; 4296 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4297 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4298 default: 4299 break; 4300 } 4301 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4302 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4303 dma_buf_size = dma_buf_size << 1) 4304 ; 4305 if (dma_buf_size == max_buf_size) 4306 phba->cfg_sg_seg_cnt = (dma_buf_size - 4307 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4308 (2 * sizeof(struct sli4_sge))) / 4309 sizeof(struct sli4_sge); 4310 phba->cfg_sg_dma_buf_size = dma_buf_size; 4311 4312 /* Initialize buffer queue management fields */ 4313 hbq_count = lpfc_sli_hbq_count(); 4314 for (i = 0; i < hbq_count; ++i) 4315 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4316 INIT_LIST_HEAD(&phba->rb_pend_list); 4317 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4318 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4319 4320 /* 4321 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4322 */ 4323 /* Initialize the Abort scsi buffer list used by driver */ 4324 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4325 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4326 /* This abort list used by worker thread */ 4327 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4328 4329 /* 4330 * Initialize driver internal slow-path work queues 4331 */ 4332 4333 /* Driver internel slow-path CQ Event pool */ 4334 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4335 /* Response IOCB work queue list */ 4336 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4337 /* Asynchronous event CQ Event work queue list */ 4338 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4339 /* Fast-path XRI aborted CQ Event work queue list */ 4340 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4341 /* Slow-path XRI aborted CQ Event work queue list */ 4342 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4343 /* Receive queue CQ Event work queue list */ 4344 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4345 4346 /* Initialize extent block lists. */ 4347 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4348 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4349 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4350 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4351 4352 /* Initialize the driver internal SLI layer lists. */ 4353 lpfc_sli_setup(phba); 4354 lpfc_sli_queue_setup(phba); 4355 4356 /* Allocate device driver memory */ 4357 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4358 if (rc) 4359 return -ENOMEM; 4360 4361 /* IF Type 2 ports get initialized now. */ 4362 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4363 LPFC_SLI_INTF_IF_TYPE_2) { 4364 rc = lpfc_pci_function_reset(phba); 4365 if (unlikely(rc)) 4366 return -ENODEV; 4367 } 4368 4369 /* Create the bootstrap mailbox command */ 4370 rc = lpfc_create_bootstrap_mbox(phba); 4371 if (unlikely(rc)) 4372 goto out_free_mem; 4373 4374 /* Set up the host's endian order with the device. */ 4375 rc = lpfc_setup_endian_order(phba); 4376 if (unlikely(rc)) 4377 goto out_free_bsmbx; 4378 4379 /* Set up the hba's configuration parameters. */ 4380 rc = lpfc_sli4_read_config(phba); 4381 if (unlikely(rc)) 4382 goto out_free_bsmbx; 4383 4384 /* IF Type 0 ports get initialized now. */ 4385 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4386 LPFC_SLI_INTF_IF_TYPE_0) { 4387 rc = lpfc_pci_function_reset(phba); 4388 if (unlikely(rc)) 4389 goto out_free_bsmbx; 4390 } 4391 4392 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4393 GFP_KERNEL); 4394 if (!mboxq) { 4395 rc = -ENOMEM; 4396 goto out_free_bsmbx; 4397 } 4398 4399 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4400 lpfc_supported_pages(mboxq); 4401 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4402 if (!rc) { 4403 mqe = &mboxq->u.mqe; 4404 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4405 LPFC_MAX_SUPPORTED_PAGES); 4406 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4407 switch (pn_page[i]) { 4408 case LPFC_SLI4_PARAMETERS: 4409 phba->sli4_hba.pc_sli4_params.supported = 1; 4410 break; 4411 default: 4412 break; 4413 } 4414 } 4415 /* Read the port's SLI4 Parameters capabilities if supported. */ 4416 if (phba->sli4_hba.pc_sli4_params.supported) 4417 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4418 if (rc) { 4419 mempool_free(mboxq, phba->mbox_mem_pool); 4420 rc = -EIO; 4421 goto out_free_bsmbx; 4422 } 4423 } 4424 /* 4425 * Get sli4 parameters that override parameters from Port capabilities. 4426 * If this call fails, it isn't critical unless the SLI4 parameters come 4427 * back in conflict. 4428 */ 4429 rc = lpfc_get_sli4_parameters(phba, mboxq); 4430 if (rc) { 4431 if (phba->sli4_hba.extents_in_use && 4432 phba->sli4_hba.rpi_hdrs_in_use) { 4433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4434 "2999 Unsupported SLI4 Parameters " 4435 "Extents and RPI headers enabled.\n"); 4436 goto out_free_bsmbx; 4437 } 4438 } 4439 mempool_free(mboxq, phba->mbox_mem_pool); 4440 /* Create all the SLI4 queues */ 4441 rc = lpfc_sli4_queue_create(phba); 4442 if (rc) 4443 goto out_free_bsmbx; 4444 4445 /* Create driver internal CQE event pool */ 4446 rc = lpfc_sli4_cq_event_pool_create(phba); 4447 if (rc) 4448 goto out_destroy_queue; 4449 4450 /* Initialize and populate the iocb list per host */ 4451 rc = lpfc_init_sgl_list(phba); 4452 if (rc) { 4453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4454 "1400 Failed to initialize sgl list.\n"); 4455 goto out_destroy_cq_event_pool; 4456 } 4457 rc = lpfc_init_active_sgl_array(phba); 4458 if (rc) { 4459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4460 "1430 Failed to initialize sgl list.\n"); 4461 goto out_free_sgl_list; 4462 } 4463 rc = lpfc_sli4_init_rpi_hdrs(phba); 4464 if (rc) { 4465 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4466 "1432 Failed to initialize rpi headers.\n"); 4467 goto out_free_active_sgl; 4468 } 4469 4470 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4471 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4472 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4473 GFP_KERNEL); 4474 if (!phba->fcf.fcf_rr_bmask) { 4475 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4476 "2759 Failed allocate memory for FCF round " 4477 "robin failover bmask\n"); 4478 rc = -ENOMEM; 4479 goto out_remove_rpi_hdrs; 4480 } 4481 4482 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4483 phba->cfg_fcp_eq_count), GFP_KERNEL); 4484 if (!phba->sli4_hba.fcp_eq_hdl) { 4485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4486 "2572 Failed allocate memory for fast-path " 4487 "per-EQ handle array\n"); 4488 rc = -ENOMEM; 4489 goto out_free_fcf_rr_bmask; 4490 } 4491 4492 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4493 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4494 if (!phba->sli4_hba.msix_entries) { 4495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4496 "2573 Failed allocate memory for msi-x " 4497 "interrupt vector entries\n"); 4498 rc = -ENOMEM; 4499 goto out_free_fcp_eq_hdl; 4500 } 4501 4502 /* 4503 * Enable sr-iov virtual functions if supported and configured 4504 * through the module parameter. 4505 */ 4506 if (phba->cfg_sriov_nr_virtfn > 0) { 4507 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4508 phba->cfg_sriov_nr_virtfn); 4509 if (rc) { 4510 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4511 "3020 Requested number of SR-IOV " 4512 "virtual functions (%d) is not " 4513 "supported\n", 4514 phba->cfg_sriov_nr_virtfn); 4515 phba->cfg_sriov_nr_virtfn = 0; 4516 } 4517 } 4518 4519 return rc; 4520 4521 out_free_fcp_eq_hdl: 4522 kfree(phba->sli4_hba.fcp_eq_hdl); 4523 out_free_fcf_rr_bmask: 4524 kfree(phba->fcf.fcf_rr_bmask); 4525 out_remove_rpi_hdrs: 4526 lpfc_sli4_remove_rpi_hdrs(phba); 4527 out_free_active_sgl: 4528 lpfc_free_active_sgl(phba); 4529 out_free_sgl_list: 4530 lpfc_free_sgl_list(phba); 4531 out_destroy_cq_event_pool: 4532 lpfc_sli4_cq_event_pool_destroy(phba); 4533 out_destroy_queue: 4534 lpfc_sli4_queue_destroy(phba); 4535 out_free_bsmbx: 4536 lpfc_destroy_bootstrap_mbox(phba); 4537 out_free_mem: 4538 lpfc_mem_free(phba); 4539 return rc; 4540 } 4541 4542 /** 4543 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4544 * @phba: pointer to lpfc hba data structure. 4545 * 4546 * This routine is invoked to unset the driver internal resources set up 4547 * specific for supporting the SLI-4 HBA device it attached to. 4548 **/ 4549 static void 4550 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4551 { 4552 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4553 4554 /* Free memory allocated for msi-x interrupt vector entries */ 4555 kfree(phba->sli4_hba.msix_entries); 4556 4557 /* Free memory allocated for fast-path work queue handles */ 4558 kfree(phba->sli4_hba.fcp_eq_hdl); 4559 4560 /* Free the allocated rpi headers. */ 4561 lpfc_sli4_remove_rpi_hdrs(phba); 4562 lpfc_sli4_remove_rpis(phba); 4563 4564 /* Free eligible FCF index bmask */ 4565 kfree(phba->fcf.fcf_rr_bmask); 4566 4567 /* Free the ELS sgl list */ 4568 lpfc_free_active_sgl(phba); 4569 lpfc_free_sgl_list(phba); 4570 4571 /* Free the SCSI sgl management array */ 4572 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4573 4574 /* Free the SLI4 queues */ 4575 lpfc_sli4_queue_destroy(phba); 4576 4577 /* Free the completion queue EQ event pool */ 4578 lpfc_sli4_cq_event_release_all(phba); 4579 lpfc_sli4_cq_event_pool_destroy(phba); 4580 4581 /* Release resource identifiers. */ 4582 lpfc_sli4_dealloc_resource_identifiers(phba); 4583 4584 /* Free the bsmbx region. */ 4585 lpfc_destroy_bootstrap_mbox(phba); 4586 4587 /* Free the SLI Layer memory with SLI4 HBAs */ 4588 lpfc_mem_free_all(phba); 4589 4590 /* Free the current connect table */ 4591 list_for_each_entry_safe(conn_entry, next_conn_entry, 4592 &phba->fcf_conn_rec_list, list) { 4593 list_del_init(&conn_entry->list); 4594 kfree(conn_entry); 4595 } 4596 4597 return; 4598 } 4599 4600 /** 4601 * lpfc_init_api_table_setup - Set up init api function jump table 4602 * @phba: The hba struct for which this call is being executed. 4603 * @dev_grp: The HBA PCI-Device group number. 4604 * 4605 * This routine sets up the device INIT interface API function jump table 4606 * in @phba struct. 4607 * 4608 * Returns: 0 - success, -ENODEV - failure. 4609 **/ 4610 int 4611 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4612 { 4613 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4614 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4615 phba->lpfc_selective_reset = lpfc_selective_reset; 4616 switch (dev_grp) { 4617 case LPFC_PCI_DEV_LP: 4618 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4619 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4620 phba->lpfc_stop_port = lpfc_stop_port_s3; 4621 break; 4622 case LPFC_PCI_DEV_OC: 4623 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4624 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4625 phba->lpfc_stop_port = lpfc_stop_port_s4; 4626 break; 4627 default: 4628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4629 "1431 Invalid HBA PCI-device group: 0x%x\n", 4630 dev_grp); 4631 return -ENODEV; 4632 break; 4633 } 4634 return 0; 4635 } 4636 4637 /** 4638 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4639 * @phba: pointer to lpfc hba data structure. 4640 * 4641 * This routine is invoked to set up the driver internal resources before the 4642 * device specific resource setup to support the HBA device it attached to. 4643 * 4644 * Return codes 4645 * 0 - successful 4646 * other values - error 4647 **/ 4648 static int 4649 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4650 { 4651 /* 4652 * Driver resources common to all SLI revisions 4653 */ 4654 atomic_set(&phba->fast_event_count, 0); 4655 spin_lock_init(&phba->hbalock); 4656 4657 /* Initialize ndlp management spinlock */ 4658 spin_lock_init(&phba->ndlp_lock); 4659 4660 INIT_LIST_HEAD(&phba->port_list); 4661 INIT_LIST_HEAD(&phba->work_list); 4662 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4663 4664 /* Initialize the wait queue head for the kernel thread */ 4665 init_waitqueue_head(&phba->work_waitq); 4666 4667 /* Initialize the scsi buffer list used by driver for scsi IO */ 4668 spin_lock_init(&phba->scsi_buf_list_lock); 4669 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4670 4671 /* Initialize the fabric iocb list */ 4672 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4673 4674 /* Initialize list to save ELS buffers */ 4675 INIT_LIST_HEAD(&phba->elsbuf); 4676 4677 /* Initialize FCF connection rec list */ 4678 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4679 4680 return 0; 4681 } 4682 4683 /** 4684 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4685 * @phba: pointer to lpfc hba data structure. 4686 * 4687 * This routine is invoked to set up the driver internal resources after the 4688 * device specific resource setup to support the HBA device it attached to. 4689 * 4690 * Return codes 4691 * 0 - successful 4692 * other values - error 4693 **/ 4694 static int 4695 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4696 { 4697 int error; 4698 4699 /* Startup the kernel thread for this host adapter. */ 4700 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4701 "lpfc_worker_%d", phba->brd_no); 4702 if (IS_ERR(phba->worker_thread)) { 4703 error = PTR_ERR(phba->worker_thread); 4704 return error; 4705 } 4706 4707 return 0; 4708 } 4709 4710 /** 4711 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4712 * @phba: pointer to lpfc hba data structure. 4713 * 4714 * This routine is invoked to unset the driver internal resources set up after 4715 * the device specific resource setup for supporting the HBA device it 4716 * attached to. 4717 **/ 4718 static void 4719 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4720 { 4721 /* Stop kernel worker thread */ 4722 kthread_stop(phba->worker_thread); 4723 } 4724 4725 /** 4726 * lpfc_free_iocb_list - Free iocb list. 4727 * @phba: pointer to lpfc hba data structure. 4728 * 4729 * This routine is invoked to free the driver's IOCB list and memory. 4730 **/ 4731 static void 4732 lpfc_free_iocb_list(struct lpfc_hba *phba) 4733 { 4734 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4735 4736 spin_lock_irq(&phba->hbalock); 4737 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4738 &phba->lpfc_iocb_list, list) { 4739 list_del(&iocbq_entry->list); 4740 kfree(iocbq_entry); 4741 phba->total_iocbq_bufs--; 4742 } 4743 spin_unlock_irq(&phba->hbalock); 4744 4745 return; 4746 } 4747 4748 /** 4749 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4750 * @phba: pointer to lpfc hba data structure. 4751 * 4752 * This routine is invoked to allocate and initizlize the driver's IOCB 4753 * list and set up the IOCB tag array accordingly. 4754 * 4755 * Return codes 4756 * 0 - successful 4757 * other values - error 4758 **/ 4759 static int 4760 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4761 { 4762 struct lpfc_iocbq *iocbq_entry = NULL; 4763 uint16_t iotag; 4764 int i; 4765 4766 /* Initialize and populate the iocb list per host. */ 4767 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4768 for (i = 0; i < iocb_count; i++) { 4769 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4770 if (iocbq_entry == NULL) { 4771 printk(KERN_ERR "%s: only allocated %d iocbs of " 4772 "expected %d count. Unloading driver.\n", 4773 __func__, i, LPFC_IOCB_LIST_CNT); 4774 goto out_free_iocbq; 4775 } 4776 4777 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4778 if (iotag == 0) { 4779 kfree(iocbq_entry); 4780 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4781 "Unloading driver.\n", __func__); 4782 goto out_free_iocbq; 4783 } 4784 iocbq_entry->sli4_lxritag = NO_XRI; 4785 iocbq_entry->sli4_xritag = NO_XRI; 4786 4787 spin_lock_irq(&phba->hbalock); 4788 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4789 phba->total_iocbq_bufs++; 4790 spin_unlock_irq(&phba->hbalock); 4791 } 4792 4793 return 0; 4794 4795 out_free_iocbq: 4796 lpfc_free_iocb_list(phba); 4797 4798 return -ENOMEM; 4799 } 4800 4801 /** 4802 * lpfc_free_sgl_list - Free sgl list. 4803 * @phba: pointer to lpfc hba data structure. 4804 * 4805 * This routine is invoked to free the driver's sgl list and memory. 4806 **/ 4807 static void 4808 lpfc_free_sgl_list(struct lpfc_hba *phba) 4809 { 4810 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4811 LIST_HEAD(sglq_list); 4812 4813 spin_lock_irq(&phba->hbalock); 4814 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4815 spin_unlock_irq(&phba->hbalock); 4816 4817 list_for_each_entry_safe(sglq_entry, sglq_next, 4818 &sglq_list, list) { 4819 list_del(&sglq_entry->list); 4820 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4821 kfree(sglq_entry); 4822 phba->sli4_hba.total_sglq_bufs--; 4823 } 4824 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4825 } 4826 4827 /** 4828 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4829 * @phba: pointer to lpfc hba data structure. 4830 * 4831 * This routine is invoked to allocate the driver's active sgl memory. 4832 * This array will hold the sglq_entry's for active IOs. 4833 **/ 4834 static int 4835 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4836 { 4837 int size; 4838 size = sizeof(struct lpfc_sglq *); 4839 size *= phba->sli4_hba.max_cfg_param.max_xri; 4840 4841 phba->sli4_hba.lpfc_sglq_active_list = 4842 kzalloc(size, GFP_KERNEL); 4843 if (!phba->sli4_hba.lpfc_sglq_active_list) 4844 return -ENOMEM; 4845 return 0; 4846 } 4847 4848 /** 4849 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4850 * @phba: pointer to lpfc hba data structure. 4851 * 4852 * This routine is invoked to walk through the array of active sglq entries 4853 * and free all of the resources. 4854 * This is just a place holder for now. 4855 **/ 4856 static void 4857 lpfc_free_active_sgl(struct lpfc_hba *phba) 4858 { 4859 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4860 } 4861 4862 /** 4863 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4864 * @phba: pointer to lpfc hba data structure. 4865 * 4866 * This routine is invoked to allocate and initizlize the driver's sgl 4867 * list and set up the sgl xritag tag array accordingly. 4868 * 4869 * Return codes 4870 * 0 - successful 4871 * other values - error 4872 **/ 4873 static int 4874 lpfc_init_sgl_list(struct lpfc_hba *phba) 4875 { 4876 struct lpfc_sglq *sglq_entry = NULL; 4877 int i; 4878 int els_xri_cnt; 4879 4880 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4881 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4882 "2400 ELS XRI count %d.\n", 4883 els_xri_cnt); 4884 /* Initialize and populate the sglq list per host/VF. */ 4885 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4886 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4887 4888 /* Sanity check on XRI management */ 4889 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4890 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4891 "2562 No room left for SCSI XRI allocation: " 4892 "max_xri=%d, els_xri=%d\n", 4893 phba->sli4_hba.max_cfg_param.max_xri, 4894 els_xri_cnt); 4895 return -ENOMEM; 4896 } 4897 4898 /* Allocate memory for the ELS XRI management array */ 4899 phba->sli4_hba.lpfc_els_sgl_array = 4900 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4901 GFP_KERNEL); 4902 4903 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4904 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4905 "2401 Failed to allocate memory for ELS " 4906 "XRI management array of size %d.\n", 4907 els_xri_cnt); 4908 return -ENOMEM; 4909 } 4910 4911 /* Keep the SCSI XRI into the XRI management array */ 4912 phba->sli4_hba.scsi_xri_max = 4913 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4914 phba->sli4_hba.scsi_xri_cnt = 0; 4915 phba->sli4_hba.lpfc_scsi_psb_array = 4916 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4917 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4918 4919 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4920 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4921 "2563 Failed to allocate memory for SCSI " 4922 "XRI management array of size %d.\n", 4923 phba->sli4_hba.scsi_xri_max); 4924 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4925 return -ENOMEM; 4926 } 4927 4928 for (i = 0; i < els_xri_cnt; i++) { 4929 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4930 if (sglq_entry == NULL) { 4931 printk(KERN_ERR "%s: only allocated %d sgls of " 4932 "expected %d count. Unloading driver.\n", 4933 __func__, i, els_xri_cnt); 4934 goto out_free_mem; 4935 } 4936 4937 sglq_entry->buff_type = GEN_BUFF_TYPE; 4938 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4939 if (sglq_entry->virt == NULL) { 4940 kfree(sglq_entry); 4941 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4942 "Unloading driver.\n", __func__); 4943 goto out_free_mem; 4944 } 4945 sglq_entry->sgl = sglq_entry->virt; 4946 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 4947 4948 /* The list order is used by later block SGL registraton */ 4949 spin_lock_irq(&phba->hbalock); 4950 sglq_entry->state = SGL_FREED; 4951 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 4952 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 4953 phba->sli4_hba.total_sglq_bufs++; 4954 spin_unlock_irq(&phba->hbalock); 4955 } 4956 return 0; 4957 4958 out_free_mem: 4959 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4960 lpfc_free_sgl_list(phba); 4961 return -ENOMEM; 4962 } 4963 4964 /** 4965 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 4966 * @phba: pointer to lpfc hba data structure. 4967 * 4968 * This routine is invoked to post rpi header templates to the 4969 * HBA consistent with the SLI-4 interface spec. This routine 4970 * posts a PAGE_SIZE memory region to the port to hold up to 4971 * PAGE_SIZE modulo 64 rpi context headers. 4972 * No locks are held here because this is an initialization routine 4973 * called only from probe or lpfc_online when interrupts are not 4974 * enabled and the driver is reinitializing the device. 4975 * 4976 * Return codes 4977 * 0 - successful 4978 * -ENOMEM - No available memory 4979 * -EIO - The mailbox failed to complete successfully. 4980 **/ 4981 int 4982 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 4983 { 4984 int rc = 0; 4985 struct lpfc_rpi_hdr *rpi_hdr; 4986 4987 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 4988 /* 4989 * If the SLI4 port supports extents, posting the rpi header isn't 4990 * required. Set the expected maximum count and let the actual value 4991 * get set when extents are fully allocated. 4992 */ 4993 if (!phba->sli4_hba.rpi_hdrs_in_use) { 4994 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi; 4995 return rc; 4996 } 4997 if (phba->sli4_hba.extents_in_use) 4998 return -EIO; 4999 5000 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5001 if (!rpi_hdr) { 5002 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5003 "0391 Error during rpi post operation\n"); 5004 lpfc_sli4_remove_rpis(phba); 5005 rc = -ENODEV; 5006 } 5007 5008 return rc; 5009 } 5010 5011 /** 5012 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5013 * @phba: pointer to lpfc hba data structure. 5014 * 5015 * This routine is invoked to allocate a single 4KB memory region to 5016 * support rpis and stores them in the phba. This single region 5017 * provides support for up to 64 rpis. The region is used globally 5018 * by the device. 5019 * 5020 * Returns: 5021 * A valid rpi hdr on success. 5022 * A NULL pointer on any failure. 5023 **/ 5024 struct lpfc_rpi_hdr * 5025 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5026 { 5027 uint16_t rpi_limit, curr_rpi_range; 5028 struct lpfc_dmabuf *dmabuf; 5029 struct lpfc_rpi_hdr *rpi_hdr; 5030 uint32_t rpi_count; 5031 5032 /* 5033 * If the SLI4 port supports extents, posting the rpi header isn't 5034 * required. Set the expected maximum count and let the actual value 5035 * get set when extents are fully allocated. 5036 */ 5037 if (!phba->sli4_hba.rpi_hdrs_in_use) 5038 return NULL; 5039 if (phba->sli4_hba.extents_in_use) 5040 return NULL; 5041 5042 /* The limit on the logical index is just the max_rpi count. */ 5043 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5044 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5045 5046 spin_lock_irq(&phba->hbalock); 5047 /* 5048 * Establish the starting RPI in this header block. The starting 5049 * rpi is normalized to a zero base because the physical rpi is 5050 * port based. 5051 */ 5052 curr_rpi_range = phba->sli4_hba.next_rpi - 5053 phba->sli4_hba.max_cfg_param.rpi_base; 5054 spin_unlock_irq(&phba->hbalock); 5055 5056 /* 5057 * The port has a limited number of rpis. The increment here 5058 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5059 * and to allow the full max_rpi range per port. 5060 */ 5061 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5062 rpi_count = rpi_limit - curr_rpi_range; 5063 else 5064 rpi_count = LPFC_RPI_HDR_COUNT; 5065 5066 if (!rpi_count) 5067 return NULL; 5068 /* 5069 * First allocate the protocol header region for the port. The 5070 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5071 */ 5072 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5073 if (!dmabuf) 5074 return NULL; 5075 5076 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5077 LPFC_HDR_TEMPLATE_SIZE, 5078 &dmabuf->phys, 5079 GFP_KERNEL); 5080 if (!dmabuf->virt) { 5081 rpi_hdr = NULL; 5082 goto err_free_dmabuf; 5083 } 5084 5085 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5086 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5087 rpi_hdr = NULL; 5088 goto err_free_coherent; 5089 } 5090 5091 /* Save the rpi header data for cleanup later. */ 5092 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5093 if (!rpi_hdr) 5094 goto err_free_coherent; 5095 5096 rpi_hdr->dmabuf = dmabuf; 5097 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5098 rpi_hdr->page_count = 1; 5099 spin_lock_irq(&phba->hbalock); 5100 5101 /* The rpi_hdr stores the logical index only. */ 5102 rpi_hdr->start_rpi = curr_rpi_range; 5103 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5104 5105 /* 5106 * The next_rpi stores the next logical module-64 rpi value used 5107 * to post physical rpis in subsequent rpi postings. 5108 */ 5109 phba->sli4_hba.next_rpi += rpi_count; 5110 spin_unlock_irq(&phba->hbalock); 5111 return rpi_hdr; 5112 5113 err_free_coherent: 5114 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5115 dmabuf->virt, dmabuf->phys); 5116 err_free_dmabuf: 5117 kfree(dmabuf); 5118 return NULL; 5119 } 5120 5121 /** 5122 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5123 * @phba: pointer to lpfc hba data structure. 5124 * 5125 * This routine is invoked to remove all memory resources allocated 5126 * to support rpis for SLI4 ports not supporting extents. This routine 5127 * presumes the caller has released all rpis consumed by fabric or port 5128 * logins and is prepared to have the header pages removed. 5129 **/ 5130 void 5131 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5132 { 5133 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5134 5135 if (!phba->sli4_hba.rpi_hdrs_in_use) 5136 goto exit; 5137 5138 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5139 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5140 list_del(&rpi_hdr->list); 5141 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5142 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5143 kfree(rpi_hdr->dmabuf); 5144 kfree(rpi_hdr); 5145 } 5146 exit: 5147 /* There are no rpis available to the port now. */ 5148 phba->sli4_hba.next_rpi = 0; 5149 } 5150 5151 /** 5152 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5153 * @pdev: pointer to pci device data structure. 5154 * 5155 * This routine is invoked to allocate the driver hba data structure for an 5156 * HBA device. If the allocation is successful, the phba reference to the 5157 * PCI device data structure is set. 5158 * 5159 * Return codes 5160 * pointer to @phba - successful 5161 * NULL - error 5162 **/ 5163 static struct lpfc_hba * 5164 lpfc_hba_alloc(struct pci_dev *pdev) 5165 { 5166 struct lpfc_hba *phba; 5167 5168 /* Allocate memory for HBA structure */ 5169 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5170 if (!phba) { 5171 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5172 return NULL; 5173 } 5174 5175 /* Set reference to PCI device in HBA structure */ 5176 phba->pcidev = pdev; 5177 5178 /* Assign an unused board number */ 5179 phba->brd_no = lpfc_get_instance(); 5180 if (phba->brd_no < 0) { 5181 kfree(phba); 5182 return NULL; 5183 } 5184 5185 spin_lock_init(&phba->ct_ev_lock); 5186 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5187 5188 return phba; 5189 } 5190 5191 /** 5192 * lpfc_hba_free - Free driver hba data structure with a device. 5193 * @phba: pointer to lpfc hba data structure. 5194 * 5195 * This routine is invoked to free the driver hba data structure with an 5196 * HBA device. 5197 **/ 5198 static void 5199 lpfc_hba_free(struct lpfc_hba *phba) 5200 { 5201 /* Release the driver assigned board number */ 5202 idr_remove(&lpfc_hba_index, phba->brd_no); 5203 5204 kfree(phba); 5205 return; 5206 } 5207 5208 /** 5209 * lpfc_create_shost - Create hba physical port with associated scsi host. 5210 * @phba: pointer to lpfc hba data structure. 5211 * 5212 * This routine is invoked to create HBA physical port and associate a SCSI 5213 * host with it. 5214 * 5215 * Return codes 5216 * 0 - successful 5217 * other values - error 5218 **/ 5219 static int 5220 lpfc_create_shost(struct lpfc_hba *phba) 5221 { 5222 struct lpfc_vport *vport; 5223 struct Scsi_Host *shost; 5224 5225 /* Initialize HBA FC structure */ 5226 phba->fc_edtov = FF_DEF_EDTOV; 5227 phba->fc_ratov = FF_DEF_RATOV; 5228 phba->fc_altov = FF_DEF_ALTOV; 5229 phba->fc_arbtov = FF_DEF_ARBTOV; 5230 5231 atomic_set(&phba->sdev_cnt, 0); 5232 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5233 if (!vport) 5234 return -ENODEV; 5235 5236 shost = lpfc_shost_from_vport(vport); 5237 phba->pport = vport; 5238 lpfc_debugfs_initialize(vport); 5239 /* Put reference to SCSI host to driver's device private data */ 5240 pci_set_drvdata(phba->pcidev, shost); 5241 5242 return 0; 5243 } 5244 5245 /** 5246 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5247 * @phba: pointer to lpfc hba data structure. 5248 * 5249 * This routine is invoked to destroy HBA physical port and the associated 5250 * SCSI host. 5251 **/ 5252 static void 5253 lpfc_destroy_shost(struct lpfc_hba *phba) 5254 { 5255 struct lpfc_vport *vport = phba->pport; 5256 5257 /* Destroy physical port that associated with the SCSI host */ 5258 destroy_port(vport); 5259 5260 return; 5261 } 5262 5263 /** 5264 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5265 * @phba: pointer to lpfc hba data structure. 5266 * @shost: the shost to be used to detect Block guard settings. 5267 * 5268 * This routine sets up the local Block guard protocol settings for @shost. 5269 * This routine also allocates memory for debugging bg buffers. 5270 **/ 5271 static void 5272 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5273 { 5274 int pagecnt = 10; 5275 if (lpfc_prot_mask && lpfc_prot_guard) { 5276 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5277 "1478 Registering BlockGuard with the " 5278 "SCSI layer\n"); 5279 scsi_host_set_prot(shost, lpfc_prot_mask); 5280 scsi_host_set_guard(shost, lpfc_prot_guard); 5281 } 5282 if (!_dump_buf_data) { 5283 while (pagecnt) { 5284 spin_lock_init(&_dump_buf_lock); 5285 _dump_buf_data = 5286 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5287 if (_dump_buf_data) { 5288 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5289 "9043 BLKGRD: allocated %d pages for " 5290 "_dump_buf_data at 0x%p\n", 5291 (1 << pagecnt), _dump_buf_data); 5292 _dump_buf_data_order = pagecnt; 5293 memset(_dump_buf_data, 0, 5294 ((1 << PAGE_SHIFT) << pagecnt)); 5295 break; 5296 } else 5297 --pagecnt; 5298 } 5299 if (!_dump_buf_data_order) 5300 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5301 "9044 BLKGRD: ERROR unable to allocate " 5302 "memory for hexdump\n"); 5303 } else 5304 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5305 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5306 "\n", _dump_buf_data); 5307 if (!_dump_buf_dif) { 5308 while (pagecnt) { 5309 _dump_buf_dif = 5310 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5311 if (_dump_buf_dif) { 5312 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5313 "9046 BLKGRD: allocated %d pages for " 5314 "_dump_buf_dif at 0x%p\n", 5315 (1 << pagecnt), _dump_buf_dif); 5316 _dump_buf_dif_order = pagecnt; 5317 memset(_dump_buf_dif, 0, 5318 ((1 << PAGE_SHIFT) << pagecnt)); 5319 break; 5320 } else 5321 --pagecnt; 5322 } 5323 if (!_dump_buf_dif_order) 5324 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5325 "9047 BLKGRD: ERROR unable to allocate " 5326 "memory for hexdump\n"); 5327 } else 5328 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5329 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5330 _dump_buf_dif); 5331 } 5332 5333 /** 5334 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5335 * @phba: pointer to lpfc hba data structure. 5336 * 5337 * This routine is invoked to perform all the necessary post initialization 5338 * setup for the device. 5339 **/ 5340 static void 5341 lpfc_post_init_setup(struct lpfc_hba *phba) 5342 { 5343 struct Scsi_Host *shost; 5344 struct lpfc_adapter_event_header adapter_event; 5345 5346 /* Get the default values for Model Name and Description */ 5347 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5348 5349 /* 5350 * hba setup may have changed the hba_queue_depth so we need to 5351 * adjust the value of can_queue. 5352 */ 5353 shost = pci_get_drvdata(phba->pcidev); 5354 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5355 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5356 lpfc_setup_bg(phba, shost); 5357 5358 lpfc_host_attrib_init(shost); 5359 5360 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5361 spin_lock_irq(shost->host_lock); 5362 lpfc_poll_start_timer(phba); 5363 spin_unlock_irq(shost->host_lock); 5364 } 5365 5366 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5367 "0428 Perform SCSI scan\n"); 5368 /* Send board arrival event to upper layer */ 5369 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5370 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5371 fc_host_post_vendor_event(shost, fc_get_event_number(), 5372 sizeof(adapter_event), 5373 (char *) &adapter_event, 5374 LPFC_NL_VENDOR_ID); 5375 return; 5376 } 5377 5378 /** 5379 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5380 * @phba: pointer to lpfc hba data structure. 5381 * 5382 * This routine is invoked to set up the PCI device memory space for device 5383 * with SLI-3 interface spec. 5384 * 5385 * Return codes 5386 * 0 - successful 5387 * other values - error 5388 **/ 5389 static int 5390 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5391 { 5392 struct pci_dev *pdev; 5393 unsigned long bar0map_len, bar2map_len; 5394 int i, hbq_count; 5395 void *ptr; 5396 int error = -ENODEV; 5397 5398 /* Obtain PCI device reference */ 5399 if (!phba->pcidev) 5400 return error; 5401 else 5402 pdev = phba->pcidev; 5403 5404 /* Set the device DMA mask size */ 5405 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5406 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5407 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5408 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5409 return error; 5410 } 5411 } 5412 5413 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5414 * required by each mapping. 5415 */ 5416 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5417 bar0map_len = pci_resource_len(pdev, 0); 5418 5419 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5420 bar2map_len = pci_resource_len(pdev, 2); 5421 5422 /* Map HBA SLIM to a kernel virtual address. */ 5423 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5424 if (!phba->slim_memmap_p) { 5425 dev_printk(KERN_ERR, &pdev->dev, 5426 "ioremap failed for SLIM memory.\n"); 5427 goto out; 5428 } 5429 5430 /* Map HBA Control Registers to a kernel virtual address. */ 5431 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5432 if (!phba->ctrl_regs_memmap_p) { 5433 dev_printk(KERN_ERR, &pdev->dev, 5434 "ioremap failed for HBA control registers.\n"); 5435 goto out_iounmap_slim; 5436 } 5437 5438 /* Allocate memory for SLI-2 structures */ 5439 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5440 SLI2_SLIM_SIZE, 5441 &phba->slim2p.phys, 5442 GFP_KERNEL); 5443 if (!phba->slim2p.virt) 5444 goto out_iounmap; 5445 5446 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5447 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5448 phba->mbox_ext = (phba->slim2p.virt + 5449 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5450 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5451 phba->IOCBs = (phba->slim2p.virt + 5452 offsetof(struct lpfc_sli2_slim, IOCBs)); 5453 5454 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5455 lpfc_sli_hbq_size(), 5456 &phba->hbqslimp.phys, 5457 GFP_KERNEL); 5458 if (!phba->hbqslimp.virt) 5459 goto out_free_slim; 5460 5461 hbq_count = lpfc_sli_hbq_count(); 5462 ptr = phba->hbqslimp.virt; 5463 for (i = 0; i < hbq_count; ++i) { 5464 phba->hbqs[i].hbq_virt = ptr; 5465 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5466 ptr += (lpfc_hbq_defs[i]->entry_count * 5467 sizeof(struct lpfc_hbq_entry)); 5468 } 5469 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5470 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5471 5472 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5473 5474 INIT_LIST_HEAD(&phba->rb_pend_list); 5475 5476 phba->MBslimaddr = phba->slim_memmap_p; 5477 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5478 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5479 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5480 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5481 5482 return 0; 5483 5484 out_free_slim: 5485 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5486 phba->slim2p.virt, phba->slim2p.phys); 5487 out_iounmap: 5488 iounmap(phba->ctrl_regs_memmap_p); 5489 out_iounmap_slim: 5490 iounmap(phba->slim_memmap_p); 5491 out: 5492 return error; 5493 } 5494 5495 /** 5496 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5497 * @phba: pointer to lpfc hba data structure. 5498 * 5499 * This routine is invoked to unset the PCI device memory space for device 5500 * with SLI-3 interface spec. 5501 **/ 5502 static void 5503 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5504 { 5505 struct pci_dev *pdev; 5506 5507 /* Obtain PCI device reference */ 5508 if (!phba->pcidev) 5509 return; 5510 else 5511 pdev = phba->pcidev; 5512 5513 /* Free coherent DMA memory allocated */ 5514 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5515 phba->hbqslimp.virt, phba->hbqslimp.phys); 5516 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5517 phba->slim2p.virt, phba->slim2p.phys); 5518 5519 /* I/O memory unmap */ 5520 iounmap(phba->ctrl_regs_memmap_p); 5521 iounmap(phba->slim_memmap_p); 5522 5523 return; 5524 } 5525 5526 /** 5527 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5528 * @phba: pointer to lpfc hba data structure. 5529 * 5530 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5531 * done and check status. 5532 * 5533 * Return 0 if successful, otherwise -ENODEV. 5534 **/ 5535 int 5536 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5537 { 5538 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5539 struct lpfc_register reg_data; 5540 int i, port_error = 0; 5541 uint32_t if_type; 5542 5543 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5544 memset(®_data, 0, sizeof(reg_data)); 5545 if (!phba->sli4_hba.PSMPHRregaddr) 5546 return -ENODEV; 5547 5548 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5549 for (i = 0; i < 3000; i++) { 5550 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5551 &portsmphr_reg.word0) || 5552 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5553 /* Port has a fatal POST error, break out */ 5554 port_error = -ENODEV; 5555 break; 5556 } 5557 if (LPFC_POST_STAGE_PORT_READY == 5558 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5559 break; 5560 msleep(10); 5561 } 5562 5563 /* 5564 * If there was a port error during POST, then don't proceed with 5565 * other register reads as the data may not be valid. Just exit. 5566 */ 5567 if (port_error) { 5568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5569 "1408 Port Failed POST - portsmphr=0x%x, " 5570 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5571 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5572 portsmphr_reg.word0, 5573 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5574 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5575 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5576 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5577 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5578 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5579 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5580 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5581 } else { 5582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5583 "2534 Device Info: SLIFamily=0x%x, " 5584 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5585 "SLIHint_2=0x%x, FT=0x%x\n", 5586 bf_get(lpfc_sli_intf_sli_family, 5587 &phba->sli4_hba.sli_intf), 5588 bf_get(lpfc_sli_intf_slirev, 5589 &phba->sli4_hba.sli_intf), 5590 bf_get(lpfc_sli_intf_if_type, 5591 &phba->sli4_hba.sli_intf), 5592 bf_get(lpfc_sli_intf_sli_hint1, 5593 &phba->sli4_hba.sli_intf), 5594 bf_get(lpfc_sli_intf_sli_hint2, 5595 &phba->sli4_hba.sli_intf), 5596 bf_get(lpfc_sli_intf_func_type, 5597 &phba->sli4_hba.sli_intf)); 5598 /* 5599 * Check for other Port errors during the initialization 5600 * process. Fail the load if the port did not come up 5601 * correctly. 5602 */ 5603 if_type = bf_get(lpfc_sli_intf_if_type, 5604 &phba->sli4_hba.sli_intf); 5605 switch (if_type) { 5606 case LPFC_SLI_INTF_IF_TYPE_0: 5607 phba->sli4_hba.ue_mask_lo = 5608 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5609 phba->sli4_hba.ue_mask_hi = 5610 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5611 uerrlo_reg.word0 = 5612 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5613 uerrhi_reg.word0 = 5614 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5615 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5616 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5618 "1422 Unrecoverable Error " 5619 "Detected during POST " 5620 "uerr_lo_reg=0x%x, " 5621 "uerr_hi_reg=0x%x, " 5622 "ue_mask_lo_reg=0x%x, " 5623 "ue_mask_hi_reg=0x%x\n", 5624 uerrlo_reg.word0, 5625 uerrhi_reg.word0, 5626 phba->sli4_hba.ue_mask_lo, 5627 phba->sli4_hba.ue_mask_hi); 5628 port_error = -ENODEV; 5629 } 5630 break; 5631 case LPFC_SLI_INTF_IF_TYPE_2: 5632 /* Final checks. The port status should be clean. */ 5633 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5634 ®_data.word0) || 5635 (bf_get(lpfc_sliport_status_err, ®_data) && 5636 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5637 phba->work_status[0] = 5638 readl(phba->sli4_hba.u.if_type2. 5639 ERR1regaddr); 5640 phba->work_status[1] = 5641 readl(phba->sli4_hba.u.if_type2. 5642 ERR2regaddr); 5643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5644 "2888 Port Error Detected " 5645 "during POST: " 5646 "port status reg 0x%x, " 5647 "port_smphr reg 0x%x, " 5648 "error 1=0x%x, error 2=0x%x\n", 5649 reg_data.word0, 5650 portsmphr_reg.word0, 5651 phba->work_status[0], 5652 phba->work_status[1]); 5653 port_error = -ENODEV; 5654 } 5655 break; 5656 case LPFC_SLI_INTF_IF_TYPE_1: 5657 default: 5658 break; 5659 } 5660 } 5661 return port_error; 5662 } 5663 5664 /** 5665 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5666 * @phba: pointer to lpfc hba data structure. 5667 * @if_type: The SLI4 interface type getting configured. 5668 * 5669 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5670 * memory map. 5671 **/ 5672 static void 5673 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5674 { 5675 switch (if_type) { 5676 case LPFC_SLI_INTF_IF_TYPE_0: 5677 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5678 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5679 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5680 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5681 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5682 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5683 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5684 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5685 phba->sli4_hba.SLIINTFregaddr = 5686 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5687 break; 5688 case LPFC_SLI_INTF_IF_TYPE_2: 5689 phba->sli4_hba.u.if_type2.ERR1regaddr = 5690 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1; 5691 phba->sli4_hba.u.if_type2.ERR2regaddr = 5692 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2; 5693 phba->sli4_hba.u.if_type2.CTRLregaddr = 5694 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL; 5695 phba->sli4_hba.u.if_type2.STATUSregaddr = 5696 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS; 5697 phba->sli4_hba.SLIINTFregaddr = 5698 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5699 phba->sli4_hba.PSMPHRregaddr = 5700 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR; 5701 phba->sli4_hba.RQDBregaddr = 5702 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5703 phba->sli4_hba.WQDBregaddr = 5704 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5705 phba->sli4_hba.EQCQDBregaddr = 5706 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5707 phba->sli4_hba.MQDBregaddr = 5708 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5709 phba->sli4_hba.BMBXregaddr = 5710 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5711 break; 5712 case LPFC_SLI_INTF_IF_TYPE_1: 5713 default: 5714 dev_printk(KERN_ERR, &phba->pcidev->dev, 5715 "FATAL - unsupported SLI4 interface type - %d\n", 5716 if_type); 5717 break; 5718 } 5719 } 5720 5721 /** 5722 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5723 * @phba: pointer to lpfc hba data structure. 5724 * 5725 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5726 * memory map. 5727 **/ 5728 static void 5729 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5730 { 5731 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5732 LPFC_SLIPORT_IF0_SMPHR; 5733 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5734 LPFC_HST_ISR0; 5735 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5736 LPFC_HST_IMR0; 5737 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5738 LPFC_HST_ISCR0; 5739 } 5740 5741 /** 5742 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5743 * @phba: pointer to lpfc hba data structure. 5744 * @vf: virtual function number 5745 * 5746 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5747 * based on the given viftual function number, @vf. 5748 * 5749 * Return 0 if successful, otherwise -ENODEV. 5750 **/ 5751 static int 5752 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5753 { 5754 if (vf > LPFC_VIR_FUNC_MAX) 5755 return -ENODEV; 5756 5757 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5758 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5759 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5760 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5761 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5762 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5763 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5764 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5765 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5766 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5767 return 0; 5768 } 5769 5770 /** 5771 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5772 * @phba: pointer to lpfc hba data structure. 5773 * 5774 * This routine is invoked to create the bootstrap mailbox 5775 * region consistent with the SLI-4 interface spec. This 5776 * routine allocates all memory necessary to communicate 5777 * mailbox commands to the port and sets up all alignment 5778 * needs. No locks are expected to be held when calling 5779 * this routine. 5780 * 5781 * Return codes 5782 * 0 - successful 5783 * -ENOMEM - could not allocated memory. 5784 **/ 5785 static int 5786 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5787 { 5788 uint32_t bmbx_size; 5789 struct lpfc_dmabuf *dmabuf; 5790 struct dma_address *dma_address; 5791 uint32_t pa_addr; 5792 uint64_t phys_addr; 5793 5794 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5795 if (!dmabuf) 5796 return -ENOMEM; 5797 5798 /* 5799 * The bootstrap mailbox region is comprised of 2 parts 5800 * plus an alignment restriction of 16 bytes. 5801 */ 5802 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5803 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5804 bmbx_size, 5805 &dmabuf->phys, 5806 GFP_KERNEL); 5807 if (!dmabuf->virt) { 5808 kfree(dmabuf); 5809 return -ENOMEM; 5810 } 5811 memset(dmabuf->virt, 0, bmbx_size); 5812 5813 /* 5814 * Initialize the bootstrap mailbox pointers now so that the register 5815 * operations are simple later. The mailbox dma address is required 5816 * to be 16-byte aligned. Also align the virtual memory as each 5817 * maibox is copied into the bmbx mailbox region before issuing the 5818 * command to the port. 5819 */ 5820 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5821 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5822 5823 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5824 LPFC_ALIGN_16_BYTE); 5825 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5826 LPFC_ALIGN_16_BYTE); 5827 5828 /* 5829 * Set the high and low physical addresses now. The SLI4 alignment 5830 * requirement is 16 bytes and the mailbox is posted to the port 5831 * as two 30-bit addresses. The other data is a bit marking whether 5832 * the 30-bit address is the high or low address. 5833 * Upcast bmbx aphys to 64bits so shift instruction compiles 5834 * clean on 32 bit machines. 5835 */ 5836 dma_address = &phba->sli4_hba.bmbx.dma_address; 5837 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5838 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5839 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5840 LPFC_BMBX_BIT1_ADDR_HI); 5841 5842 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5843 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5844 LPFC_BMBX_BIT1_ADDR_LO); 5845 return 0; 5846 } 5847 5848 /** 5849 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5850 * @phba: pointer to lpfc hba data structure. 5851 * 5852 * This routine is invoked to teardown the bootstrap mailbox 5853 * region and release all host resources. This routine requires 5854 * the caller to ensure all mailbox commands recovered, no 5855 * additional mailbox comands are sent, and interrupts are disabled 5856 * before calling this routine. 5857 * 5858 **/ 5859 static void 5860 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5861 { 5862 dma_free_coherent(&phba->pcidev->dev, 5863 phba->sli4_hba.bmbx.bmbx_size, 5864 phba->sli4_hba.bmbx.dmabuf->virt, 5865 phba->sli4_hba.bmbx.dmabuf->phys); 5866 5867 kfree(phba->sli4_hba.bmbx.dmabuf); 5868 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5869 } 5870 5871 /** 5872 * lpfc_sli4_read_config - Get the config parameters. 5873 * @phba: pointer to lpfc hba data structure. 5874 * 5875 * This routine is invoked to read the configuration parameters from the HBA. 5876 * The configuration parameters are used to set the base and maximum values 5877 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5878 * allocation for the port. 5879 * 5880 * Return codes 5881 * 0 - successful 5882 * -ENOMEM - No available memory 5883 * -EIO - The mailbox failed to complete successfully. 5884 **/ 5885 static int 5886 lpfc_sli4_read_config(struct lpfc_hba *phba) 5887 { 5888 LPFC_MBOXQ_t *pmb; 5889 struct lpfc_mbx_read_config *rd_config; 5890 union lpfc_sli4_cfg_shdr *shdr; 5891 uint32_t shdr_status, shdr_add_status; 5892 struct lpfc_mbx_get_func_cfg *get_func_cfg; 5893 struct lpfc_rsrc_desc_fcfcoe *desc; 5894 uint32_t desc_count; 5895 int length, i, rc = 0; 5896 5897 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5898 if (!pmb) { 5899 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5900 "2011 Unable to allocate memory for issuing " 5901 "SLI_CONFIG_SPECIAL mailbox command\n"); 5902 return -ENOMEM; 5903 } 5904 5905 lpfc_read_config(phba, pmb); 5906 5907 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5908 if (rc != MBX_SUCCESS) { 5909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5910 "2012 Mailbox failed , mbxCmd x%x " 5911 "READ_CONFIG, mbxStatus x%x\n", 5912 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5913 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5914 rc = -EIO; 5915 } else { 5916 rd_config = &pmb->u.mqe.un.rd_config; 5917 phba->sli4_hba.extents_in_use = 5918 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 5919 phba->sli4_hba.max_cfg_param.max_xri = 5920 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5921 phba->sli4_hba.max_cfg_param.xri_base = 5922 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5923 phba->sli4_hba.max_cfg_param.max_vpi = 5924 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5925 phba->sli4_hba.max_cfg_param.vpi_base = 5926 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5927 phba->sli4_hba.max_cfg_param.max_rpi = 5928 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5929 phba->sli4_hba.max_cfg_param.rpi_base = 5930 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5931 phba->sli4_hba.max_cfg_param.max_vfi = 5932 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5933 phba->sli4_hba.max_cfg_param.vfi_base = 5934 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5935 phba->sli4_hba.max_cfg_param.max_fcfi = 5936 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5937 phba->sli4_hba.max_cfg_param.max_eq = 5938 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5939 phba->sli4_hba.max_cfg_param.max_rq = 5940 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 5941 phba->sli4_hba.max_cfg_param.max_wq = 5942 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 5943 phba->sli4_hba.max_cfg_param.max_cq = 5944 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 5945 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 5946 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 5947 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 5948 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 5949 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 5950 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 5951 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 5952 phba->max_vports = phba->max_vpi; 5953 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5954 "2003 cfg params Extents? %d " 5955 "XRI(B:%d M:%d), " 5956 "VPI(B:%d M:%d) " 5957 "VFI(B:%d M:%d) " 5958 "RPI(B:%d M:%d) " 5959 "FCFI(Count:%d)\n", 5960 phba->sli4_hba.extents_in_use, 5961 phba->sli4_hba.max_cfg_param.xri_base, 5962 phba->sli4_hba.max_cfg_param.max_xri, 5963 phba->sli4_hba.max_cfg_param.vpi_base, 5964 phba->sli4_hba.max_cfg_param.max_vpi, 5965 phba->sli4_hba.max_cfg_param.vfi_base, 5966 phba->sli4_hba.max_cfg_param.max_vfi, 5967 phba->sli4_hba.max_cfg_param.rpi_base, 5968 phba->sli4_hba.max_cfg_param.max_rpi, 5969 phba->sli4_hba.max_cfg_param.max_fcfi); 5970 } 5971 5972 if (rc) 5973 goto read_cfg_out; 5974 5975 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 5976 if (phba->cfg_hba_queue_depth > 5977 (phba->sli4_hba.max_cfg_param.max_xri - 5978 lpfc_sli4_get_els_iocb_cnt(phba))) 5979 phba->cfg_hba_queue_depth = 5980 phba->sli4_hba.max_cfg_param.max_xri - 5981 lpfc_sli4_get_els_iocb_cnt(phba); 5982 5983 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 5984 LPFC_SLI_INTF_IF_TYPE_2) 5985 goto read_cfg_out; 5986 5987 /* get the pf# and vf# for SLI4 if_type 2 port */ 5988 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 5989 sizeof(struct lpfc_sli4_cfg_mhdr)); 5990 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 5991 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 5992 length, LPFC_SLI4_MBX_EMBED); 5993 5994 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5995 shdr = (union lpfc_sli4_cfg_shdr *) 5996 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 5997 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 5998 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 5999 if (rc || shdr_status || shdr_add_status) { 6000 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6001 "3026 Mailbox failed , mbxCmd x%x " 6002 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6003 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6004 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6005 rc = -EIO; 6006 goto read_cfg_out; 6007 } 6008 6009 /* search for fc_fcoe resrouce descriptor */ 6010 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6011 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6012 6013 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6014 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6015 &get_func_cfg->func_cfg.desc[i]; 6016 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6017 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6018 phba->sli4_hba.iov.pf_number = 6019 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6020 phba->sli4_hba.iov.vf_number = 6021 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6022 break; 6023 } 6024 } 6025 6026 if (i < LPFC_RSRC_DESC_MAX_NUM) 6027 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6028 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6029 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6030 phba->sli4_hba.iov.vf_number); 6031 else { 6032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6033 "3028 GET_FUNCTION_CONFIG: failed to find " 6034 "Resrouce Descriptor:x%x\n", 6035 LPFC_RSRC_DESC_TYPE_FCFCOE); 6036 rc = -EIO; 6037 } 6038 6039 read_cfg_out: 6040 mempool_free(pmb, phba->mbox_mem_pool); 6041 return rc; 6042 } 6043 6044 /** 6045 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6046 * @phba: pointer to lpfc hba data structure. 6047 * 6048 * This routine is invoked to setup the port-side endian order when 6049 * the port if_type is 0. This routine has no function for other 6050 * if_types. 6051 * 6052 * Return codes 6053 * 0 - successful 6054 * -ENOMEM - No available memory 6055 * -EIO - The mailbox failed to complete successfully. 6056 **/ 6057 static int 6058 lpfc_setup_endian_order(struct lpfc_hba *phba) 6059 { 6060 LPFC_MBOXQ_t *mboxq; 6061 uint32_t if_type, rc = 0; 6062 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6063 HOST_ENDIAN_HIGH_WORD1}; 6064 6065 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6066 switch (if_type) { 6067 case LPFC_SLI_INTF_IF_TYPE_0: 6068 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6069 GFP_KERNEL); 6070 if (!mboxq) { 6071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6072 "0492 Unable to allocate memory for " 6073 "issuing SLI_CONFIG_SPECIAL mailbox " 6074 "command\n"); 6075 return -ENOMEM; 6076 } 6077 6078 /* 6079 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6080 * two words to contain special data values and no other data. 6081 */ 6082 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6083 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6084 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6085 if (rc != MBX_SUCCESS) { 6086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6087 "0493 SLI_CONFIG_SPECIAL mailbox " 6088 "failed with status x%x\n", 6089 rc); 6090 rc = -EIO; 6091 } 6092 mempool_free(mboxq, phba->mbox_mem_pool); 6093 break; 6094 case LPFC_SLI_INTF_IF_TYPE_2: 6095 case LPFC_SLI_INTF_IF_TYPE_1: 6096 default: 6097 break; 6098 } 6099 return rc; 6100 } 6101 6102 /** 6103 * lpfc_sli4_queue_create - Create all the SLI4 queues 6104 * @phba: pointer to lpfc hba data structure. 6105 * 6106 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6107 * operation. For each SLI4 queue type, the parameters such as queue entry 6108 * count (queue depth) shall be taken from the module parameter. For now, 6109 * we just use some constant number as place holder. 6110 * 6111 * Return codes 6112 * 0 - successful 6113 * -ENOMEM - No available memory 6114 * -EIO - The mailbox failed to complete successfully. 6115 **/ 6116 static int 6117 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6118 { 6119 struct lpfc_queue *qdesc; 6120 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6121 int cfg_fcp_wq_count; 6122 int cfg_fcp_eq_count; 6123 6124 /* 6125 * Sanity check for confiugred queue parameters against the run-time 6126 * device parameters 6127 */ 6128 6129 /* Sanity check on FCP fast-path WQ parameters */ 6130 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6131 if (cfg_fcp_wq_count > 6132 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6133 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6134 LPFC_SP_WQN_DEF; 6135 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6137 "2581 Not enough WQs (%d) from " 6138 "the pci function for supporting " 6139 "FCP WQs (%d)\n", 6140 phba->sli4_hba.max_cfg_param.max_wq, 6141 phba->cfg_fcp_wq_count); 6142 goto out_error; 6143 } 6144 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6145 "2582 Not enough WQs (%d) from the pci " 6146 "function for supporting the requested " 6147 "FCP WQs (%d), the actual FCP WQs can " 6148 "be supported: %d\n", 6149 phba->sli4_hba.max_cfg_param.max_wq, 6150 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6151 } 6152 /* The actual number of FCP work queues adopted */ 6153 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6154 6155 /* Sanity check on FCP fast-path EQ parameters */ 6156 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6157 if (cfg_fcp_eq_count > 6158 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6159 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6160 LPFC_SP_EQN_DEF; 6161 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6163 "2574 Not enough EQs (%d) from the " 6164 "pci function for supporting FCP " 6165 "EQs (%d)\n", 6166 phba->sli4_hba.max_cfg_param.max_eq, 6167 phba->cfg_fcp_eq_count); 6168 goto out_error; 6169 } 6170 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6171 "2575 Not enough EQs (%d) from the pci " 6172 "function for supporting the requested " 6173 "FCP EQs (%d), the actual FCP EQs can " 6174 "be supported: %d\n", 6175 phba->sli4_hba.max_cfg_param.max_eq, 6176 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6177 } 6178 /* It does not make sense to have more EQs than WQs */ 6179 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6180 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6181 "2593 The FCP EQ count(%d) cannot be greater " 6182 "than the FCP WQ count(%d), limiting the " 6183 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6184 phba->cfg_fcp_wq_count, 6185 phba->cfg_fcp_wq_count); 6186 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6187 } 6188 /* The actual number of FCP event queues adopted */ 6189 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6190 /* The overall number of event queues used */ 6191 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6192 6193 /* 6194 * Create Event Queues (EQs) 6195 */ 6196 6197 /* Get EQ depth from module parameter, fake the default for now */ 6198 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6199 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6200 6201 /* Create slow path event queue */ 6202 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6203 phba->sli4_hba.eq_ecount); 6204 if (!qdesc) { 6205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6206 "0496 Failed allocate slow-path EQ\n"); 6207 goto out_error; 6208 } 6209 phba->sli4_hba.sp_eq = qdesc; 6210 6211 /* Create fast-path FCP Event Queue(s) */ 6212 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6213 phba->cfg_fcp_eq_count), GFP_KERNEL); 6214 if (!phba->sli4_hba.fp_eq) { 6215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6216 "2576 Failed allocate memory for fast-path " 6217 "EQ record array\n"); 6218 goto out_free_sp_eq; 6219 } 6220 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6221 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6222 phba->sli4_hba.eq_ecount); 6223 if (!qdesc) { 6224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6225 "0497 Failed allocate fast-path EQ\n"); 6226 goto out_free_fp_eq; 6227 } 6228 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6229 } 6230 6231 /* 6232 * Create Complete Queues (CQs) 6233 */ 6234 6235 /* Get CQ depth from module parameter, fake the default for now */ 6236 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6237 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6238 6239 /* Create slow-path Mailbox Command Complete Queue */ 6240 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6241 phba->sli4_hba.cq_ecount); 6242 if (!qdesc) { 6243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6244 "0500 Failed allocate slow-path mailbox CQ\n"); 6245 goto out_free_fp_eq; 6246 } 6247 phba->sli4_hba.mbx_cq = qdesc; 6248 6249 /* Create slow-path ELS Complete Queue */ 6250 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6251 phba->sli4_hba.cq_ecount); 6252 if (!qdesc) { 6253 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6254 "0501 Failed allocate slow-path ELS CQ\n"); 6255 goto out_free_mbx_cq; 6256 } 6257 phba->sli4_hba.els_cq = qdesc; 6258 6259 6260 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */ 6261 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6262 phba->cfg_fcp_eq_count), GFP_KERNEL); 6263 if (!phba->sli4_hba.fcp_cq) { 6264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6265 "2577 Failed allocate memory for fast-path " 6266 "CQ record array\n"); 6267 goto out_free_els_cq; 6268 } 6269 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) { 6270 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6271 phba->sli4_hba.cq_ecount); 6272 if (!qdesc) { 6273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6274 "0499 Failed allocate fast-path FCP " 6275 "CQ (%d)\n", fcp_cqidx); 6276 goto out_free_fcp_cq; 6277 } 6278 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6279 } 6280 6281 /* Create Mailbox Command Queue */ 6282 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6283 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6284 6285 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6286 phba->sli4_hba.mq_ecount); 6287 if (!qdesc) { 6288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6289 "0505 Failed allocate slow-path MQ\n"); 6290 goto out_free_fcp_cq; 6291 } 6292 phba->sli4_hba.mbx_wq = qdesc; 6293 6294 /* 6295 * Create all the Work Queues (WQs) 6296 */ 6297 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6298 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6299 6300 /* Create slow-path ELS Work Queue */ 6301 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6302 phba->sli4_hba.wq_ecount); 6303 if (!qdesc) { 6304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6305 "0504 Failed allocate slow-path ELS WQ\n"); 6306 goto out_free_mbx_wq; 6307 } 6308 phba->sli4_hba.els_wq = qdesc; 6309 6310 /* Create fast-path FCP Work Queue(s) */ 6311 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6312 phba->cfg_fcp_wq_count), GFP_KERNEL); 6313 if (!phba->sli4_hba.fcp_wq) { 6314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6315 "2578 Failed allocate memory for fast-path " 6316 "WQ record array\n"); 6317 goto out_free_els_wq; 6318 } 6319 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6320 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6321 phba->sli4_hba.wq_ecount); 6322 if (!qdesc) { 6323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6324 "0503 Failed allocate fast-path FCP " 6325 "WQ (%d)\n", fcp_wqidx); 6326 goto out_free_fcp_wq; 6327 } 6328 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6329 } 6330 6331 /* 6332 * Create Receive Queue (RQ) 6333 */ 6334 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6335 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6336 6337 /* Create Receive Queue for header */ 6338 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6339 phba->sli4_hba.rq_ecount); 6340 if (!qdesc) { 6341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6342 "0506 Failed allocate receive HRQ\n"); 6343 goto out_free_fcp_wq; 6344 } 6345 phba->sli4_hba.hdr_rq = qdesc; 6346 6347 /* Create Receive Queue for data */ 6348 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6349 phba->sli4_hba.rq_ecount); 6350 if (!qdesc) { 6351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6352 "0507 Failed allocate receive DRQ\n"); 6353 goto out_free_hdr_rq; 6354 } 6355 phba->sli4_hba.dat_rq = qdesc; 6356 6357 return 0; 6358 6359 out_free_hdr_rq: 6360 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6361 phba->sli4_hba.hdr_rq = NULL; 6362 out_free_fcp_wq: 6363 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6364 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6365 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6366 } 6367 kfree(phba->sli4_hba.fcp_wq); 6368 out_free_els_wq: 6369 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6370 phba->sli4_hba.els_wq = NULL; 6371 out_free_mbx_wq: 6372 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6373 phba->sli4_hba.mbx_wq = NULL; 6374 out_free_fcp_cq: 6375 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6376 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6377 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6378 } 6379 kfree(phba->sli4_hba.fcp_cq); 6380 out_free_els_cq: 6381 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6382 phba->sli4_hba.els_cq = NULL; 6383 out_free_mbx_cq: 6384 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6385 phba->sli4_hba.mbx_cq = NULL; 6386 out_free_fp_eq: 6387 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6388 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6389 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6390 } 6391 kfree(phba->sli4_hba.fp_eq); 6392 out_free_sp_eq: 6393 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6394 phba->sli4_hba.sp_eq = NULL; 6395 out_error: 6396 return -ENOMEM; 6397 } 6398 6399 /** 6400 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6401 * @phba: pointer to lpfc hba data structure. 6402 * 6403 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6404 * operation. 6405 * 6406 * Return codes 6407 * 0 - successful 6408 * -ENOMEM - No available memory 6409 * -EIO - The mailbox failed to complete successfully. 6410 **/ 6411 static void 6412 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6413 { 6414 int fcp_qidx; 6415 6416 /* Release mailbox command work queue */ 6417 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6418 phba->sli4_hba.mbx_wq = NULL; 6419 6420 /* Release ELS work queue */ 6421 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6422 phba->sli4_hba.els_wq = NULL; 6423 6424 /* Release FCP work queue */ 6425 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6426 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6427 kfree(phba->sli4_hba.fcp_wq); 6428 phba->sli4_hba.fcp_wq = NULL; 6429 6430 /* Release unsolicited receive queue */ 6431 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6432 phba->sli4_hba.hdr_rq = NULL; 6433 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6434 phba->sli4_hba.dat_rq = NULL; 6435 6436 /* Release ELS complete queue */ 6437 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6438 phba->sli4_hba.els_cq = NULL; 6439 6440 /* Release mailbox command complete queue */ 6441 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6442 phba->sli4_hba.mbx_cq = NULL; 6443 6444 /* Release FCP response complete queue */ 6445 fcp_qidx = 0; 6446 do 6447 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6448 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6449 kfree(phba->sli4_hba.fcp_cq); 6450 phba->sli4_hba.fcp_cq = NULL; 6451 6452 /* Release fast-path event queue */ 6453 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6454 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6455 kfree(phba->sli4_hba.fp_eq); 6456 phba->sli4_hba.fp_eq = NULL; 6457 6458 /* Release slow-path event queue */ 6459 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6460 phba->sli4_hba.sp_eq = NULL; 6461 6462 return; 6463 } 6464 6465 /** 6466 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6467 * @phba: pointer to lpfc hba data structure. 6468 * 6469 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6470 * operation. 6471 * 6472 * Return codes 6473 * 0 - successful 6474 * -ENOMEM - No available memory 6475 * -EIO - The mailbox failed to complete successfully. 6476 **/ 6477 int 6478 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6479 { 6480 int rc = -ENOMEM; 6481 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6482 int fcp_cq_index = 0; 6483 6484 /* 6485 * Set up Event Queues (EQs) 6486 */ 6487 6488 /* Set up slow-path event queue */ 6489 if (!phba->sli4_hba.sp_eq) { 6490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6491 "0520 Slow-path EQ not allocated\n"); 6492 goto out_error; 6493 } 6494 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6495 LPFC_SP_DEF_IMAX); 6496 if (rc) { 6497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6498 "0521 Failed setup of slow-path EQ: " 6499 "rc = 0x%x\n", rc); 6500 goto out_error; 6501 } 6502 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6503 "2583 Slow-path EQ setup: queue-id=%d\n", 6504 phba->sli4_hba.sp_eq->queue_id); 6505 6506 /* Set up fast-path event queue */ 6507 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6508 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6510 "0522 Fast-path EQ (%d) not " 6511 "allocated\n", fcp_eqidx); 6512 goto out_destroy_fp_eq; 6513 } 6514 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6515 phba->cfg_fcp_imax); 6516 if (rc) { 6517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6518 "0523 Failed setup of fast-path EQ " 6519 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6520 goto out_destroy_fp_eq; 6521 } 6522 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6523 "2584 Fast-path EQ setup: " 6524 "queue[%d]-id=%d\n", fcp_eqidx, 6525 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6526 } 6527 6528 /* 6529 * Set up Complete Queues (CQs) 6530 */ 6531 6532 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6533 if (!phba->sli4_hba.mbx_cq) { 6534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6535 "0528 Mailbox CQ not allocated\n"); 6536 goto out_destroy_fp_eq; 6537 } 6538 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6539 LPFC_MCQ, LPFC_MBOX); 6540 if (rc) { 6541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6542 "0529 Failed setup of slow-path mailbox CQ: " 6543 "rc = 0x%x\n", rc); 6544 goto out_destroy_fp_eq; 6545 } 6546 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6547 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6548 phba->sli4_hba.mbx_cq->queue_id, 6549 phba->sli4_hba.sp_eq->queue_id); 6550 6551 /* Set up slow-path ELS Complete Queue */ 6552 if (!phba->sli4_hba.els_cq) { 6553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6554 "0530 ELS CQ not allocated\n"); 6555 goto out_destroy_mbx_cq; 6556 } 6557 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6558 LPFC_WCQ, LPFC_ELS); 6559 if (rc) { 6560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6561 "0531 Failed setup of slow-path ELS CQ: " 6562 "rc = 0x%x\n", rc); 6563 goto out_destroy_mbx_cq; 6564 } 6565 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6566 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6567 phba->sli4_hba.els_cq->queue_id, 6568 phba->sli4_hba.sp_eq->queue_id); 6569 6570 /* Set up fast-path FCP Response Complete Queue */ 6571 fcp_cqidx = 0; 6572 do { 6573 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6575 "0526 Fast-path FCP CQ (%d) not " 6576 "allocated\n", fcp_cqidx); 6577 goto out_destroy_fcp_cq; 6578 } 6579 if (phba->cfg_fcp_eq_count) 6580 rc = lpfc_cq_create(phba, 6581 phba->sli4_hba.fcp_cq[fcp_cqidx], 6582 phba->sli4_hba.fp_eq[fcp_cqidx], 6583 LPFC_WCQ, LPFC_FCP); 6584 else 6585 rc = lpfc_cq_create(phba, 6586 phba->sli4_hba.fcp_cq[fcp_cqidx], 6587 phba->sli4_hba.sp_eq, 6588 LPFC_WCQ, LPFC_FCP); 6589 if (rc) { 6590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6591 "0527 Failed setup of fast-path FCP " 6592 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6593 goto out_destroy_fcp_cq; 6594 } 6595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6596 "2588 FCP CQ setup: cq[%d]-id=%d, " 6597 "parent %seq[%d]-id=%d\n", 6598 fcp_cqidx, 6599 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6600 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6601 fcp_cqidx, 6602 (phba->cfg_fcp_eq_count) ? 6603 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6604 phba->sli4_hba.sp_eq->queue_id); 6605 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6606 6607 /* 6608 * Set up all the Work Queues (WQs) 6609 */ 6610 6611 /* Set up Mailbox Command Queue */ 6612 if (!phba->sli4_hba.mbx_wq) { 6613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6614 "0538 Slow-path MQ not allocated\n"); 6615 goto out_destroy_fcp_cq; 6616 } 6617 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6618 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6619 if (rc) { 6620 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6621 "0539 Failed setup of slow-path MQ: " 6622 "rc = 0x%x\n", rc); 6623 goto out_destroy_fcp_cq; 6624 } 6625 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6626 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6627 phba->sli4_hba.mbx_wq->queue_id, 6628 phba->sli4_hba.mbx_cq->queue_id); 6629 6630 /* Set up slow-path ELS Work Queue */ 6631 if (!phba->sli4_hba.els_wq) { 6632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6633 "0536 Slow-path ELS WQ not allocated\n"); 6634 goto out_destroy_mbx_wq; 6635 } 6636 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6637 phba->sli4_hba.els_cq, LPFC_ELS); 6638 if (rc) { 6639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6640 "0537 Failed setup of slow-path ELS WQ: " 6641 "rc = 0x%x\n", rc); 6642 goto out_destroy_mbx_wq; 6643 } 6644 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6645 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6646 phba->sli4_hba.els_wq->queue_id, 6647 phba->sli4_hba.els_cq->queue_id); 6648 6649 /* Set up fast-path FCP Work Queue */ 6650 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6651 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6653 "0534 Fast-path FCP WQ (%d) not " 6654 "allocated\n", fcp_wqidx); 6655 goto out_destroy_fcp_wq; 6656 } 6657 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6658 phba->sli4_hba.fcp_cq[fcp_cq_index], 6659 LPFC_FCP); 6660 if (rc) { 6661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6662 "0535 Failed setup of fast-path FCP " 6663 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6664 goto out_destroy_fcp_wq; 6665 } 6666 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6667 "2591 FCP WQ setup: wq[%d]-id=%d, " 6668 "parent cq[%d]-id=%d\n", 6669 fcp_wqidx, 6670 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6671 fcp_cq_index, 6672 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6673 /* Round robin FCP Work Queue's Completion Queue assignment */ 6674 if (phba->cfg_fcp_eq_count) 6675 fcp_cq_index = ((fcp_cq_index + 1) % 6676 phba->cfg_fcp_eq_count); 6677 } 6678 6679 /* 6680 * Create Receive Queue (RQ) 6681 */ 6682 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6684 "0540 Receive Queue not allocated\n"); 6685 goto out_destroy_fcp_wq; 6686 } 6687 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6688 phba->sli4_hba.els_cq, LPFC_USOL); 6689 if (rc) { 6690 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6691 "0541 Failed setup of Receive Queue: " 6692 "rc = 0x%x\n", rc); 6693 goto out_destroy_fcp_wq; 6694 } 6695 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6696 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6697 "parent cq-id=%d\n", 6698 phba->sli4_hba.hdr_rq->queue_id, 6699 phba->sli4_hba.dat_rq->queue_id, 6700 phba->sli4_hba.els_cq->queue_id); 6701 return 0; 6702 6703 out_destroy_fcp_wq: 6704 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6705 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6706 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6707 out_destroy_mbx_wq: 6708 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6709 out_destroy_fcp_cq: 6710 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6711 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6712 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6713 out_destroy_mbx_cq: 6714 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6715 out_destroy_fp_eq: 6716 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6717 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6718 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6719 out_error: 6720 return rc; 6721 } 6722 6723 /** 6724 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6725 * @phba: pointer to lpfc hba data structure. 6726 * 6727 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6728 * operation. 6729 * 6730 * Return codes 6731 * 0 - successful 6732 * -ENOMEM - No available memory 6733 * -EIO - The mailbox failed to complete successfully. 6734 **/ 6735 void 6736 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6737 { 6738 int fcp_qidx; 6739 6740 /* Unset mailbox command work queue */ 6741 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6742 /* Unset ELS work queue */ 6743 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6744 /* Unset unsolicited receive queue */ 6745 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6746 /* Unset FCP work queue */ 6747 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6748 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6749 /* Unset mailbox command complete queue */ 6750 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6751 /* Unset ELS complete queue */ 6752 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6753 /* Unset FCP response complete queue */ 6754 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6755 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6756 /* Unset fast-path event queue */ 6757 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6758 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6759 /* Unset slow-path event queue */ 6760 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6761 } 6762 6763 /** 6764 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6765 * @phba: pointer to lpfc hba data structure. 6766 * 6767 * This routine is invoked to allocate and set up a pool of completion queue 6768 * events. The body of the completion queue event is a completion queue entry 6769 * CQE. For now, this pool is used for the interrupt service routine to queue 6770 * the following HBA completion queue events for the worker thread to process: 6771 * - Mailbox asynchronous events 6772 * - Receive queue completion unsolicited events 6773 * Later, this can be used for all the slow-path events. 6774 * 6775 * Return codes 6776 * 0 - successful 6777 * -ENOMEM - No available memory 6778 **/ 6779 static int 6780 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6781 { 6782 struct lpfc_cq_event *cq_event; 6783 int i; 6784 6785 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6786 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6787 if (!cq_event) 6788 goto out_pool_create_fail; 6789 list_add_tail(&cq_event->list, 6790 &phba->sli4_hba.sp_cqe_event_pool); 6791 } 6792 return 0; 6793 6794 out_pool_create_fail: 6795 lpfc_sli4_cq_event_pool_destroy(phba); 6796 return -ENOMEM; 6797 } 6798 6799 /** 6800 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6801 * @phba: pointer to lpfc hba data structure. 6802 * 6803 * This routine is invoked to free the pool of completion queue events at 6804 * driver unload time. Note that, it is the responsibility of the driver 6805 * cleanup routine to free all the outstanding completion-queue events 6806 * allocated from this pool back into the pool before invoking this routine 6807 * to destroy the pool. 6808 **/ 6809 static void 6810 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6811 { 6812 struct lpfc_cq_event *cq_event, *next_cq_event; 6813 6814 list_for_each_entry_safe(cq_event, next_cq_event, 6815 &phba->sli4_hba.sp_cqe_event_pool, list) { 6816 list_del(&cq_event->list); 6817 kfree(cq_event); 6818 } 6819 } 6820 6821 /** 6822 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6823 * @phba: pointer to lpfc hba data structure. 6824 * 6825 * This routine is the lock free version of the API invoked to allocate a 6826 * completion-queue event from the free pool. 6827 * 6828 * Return: Pointer to the newly allocated completion-queue event if successful 6829 * NULL otherwise. 6830 **/ 6831 struct lpfc_cq_event * 6832 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6833 { 6834 struct lpfc_cq_event *cq_event = NULL; 6835 6836 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6837 struct lpfc_cq_event, list); 6838 return cq_event; 6839 } 6840 6841 /** 6842 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6843 * @phba: pointer to lpfc hba data structure. 6844 * 6845 * This routine is the lock version of the API invoked to allocate a 6846 * completion-queue event from the free pool. 6847 * 6848 * Return: Pointer to the newly allocated completion-queue event if successful 6849 * NULL otherwise. 6850 **/ 6851 struct lpfc_cq_event * 6852 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6853 { 6854 struct lpfc_cq_event *cq_event; 6855 unsigned long iflags; 6856 6857 spin_lock_irqsave(&phba->hbalock, iflags); 6858 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6859 spin_unlock_irqrestore(&phba->hbalock, iflags); 6860 return cq_event; 6861 } 6862 6863 /** 6864 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6865 * @phba: pointer to lpfc hba data structure. 6866 * @cq_event: pointer to the completion queue event to be freed. 6867 * 6868 * This routine is the lock free version of the API invoked to release a 6869 * completion-queue event back into the free pool. 6870 **/ 6871 void 6872 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6873 struct lpfc_cq_event *cq_event) 6874 { 6875 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6876 } 6877 6878 /** 6879 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6880 * @phba: pointer to lpfc hba data structure. 6881 * @cq_event: pointer to the completion queue event to be freed. 6882 * 6883 * This routine is the lock version of the API invoked to release a 6884 * completion-queue event back into the free pool. 6885 **/ 6886 void 6887 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6888 struct lpfc_cq_event *cq_event) 6889 { 6890 unsigned long iflags; 6891 spin_lock_irqsave(&phba->hbalock, iflags); 6892 __lpfc_sli4_cq_event_release(phba, cq_event); 6893 spin_unlock_irqrestore(&phba->hbalock, iflags); 6894 } 6895 6896 /** 6897 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 6898 * @phba: pointer to lpfc hba data structure. 6899 * 6900 * This routine is to free all the pending completion-queue events to the 6901 * back into the free pool for device reset. 6902 **/ 6903 static void 6904 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 6905 { 6906 LIST_HEAD(cqelist); 6907 struct lpfc_cq_event *cqe; 6908 unsigned long iflags; 6909 6910 /* Retrieve all the pending WCQEs from pending WCQE lists */ 6911 spin_lock_irqsave(&phba->hbalock, iflags); 6912 /* Pending FCP XRI abort events */ 6913 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 6914 &cqelist); 6915 /* Pending ELS XRI abort events */ 6916 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 6917 &cqelist); 6918 /* Pending asynnc events */ 6919 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 6920 &cqelist); 6921 spin_unlock_irqrestore(&phba->hbalock, iflags); 6922 6923 while (!list_empty(&cqelist)) { 6924 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 6925 lpfc_sli4_cq_event_release(phba, cqe); 6926 } 6927 } 6928 6929 /** 6930 * lpfc_pci_function_reset - Reset pci function. 6931 * @phba: pointer to lpfc hba data structure. 6932 * 6933 * This routine is invoked to request a PCI function reset. It will destroys 6934 * all resources assigned to the PCI function which originates this request. 6935 * 6936 * Return codes 6937 * 0 - successful 6938 * -ENOMEM - No available memory 6939 * -EIO - The mailbox failed to complete successfully. 6940 **/ 6941 int 6942 lpfc_pci_function_reset(struct lpfc_hba *phba) 6943 { 6944 LPFC_MBOXQ_t *mboxq; 6945 uint32_t rc = 0, if_type; 6946 uint32_t shdr_status, shdr_add_status; 6947 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 6948 union lpfc_sli4_cfg_shdr *shdr; 6949 struct lpfc_register reg_data; 6950 6951 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6952 switch (if_type) { 6953 case LPFC_SLI_INTF_IF_TYPE_0: 6954 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6955 GFP_KERNEL); 6956 if (!mboxq) { 6957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6958 "0494 Unable to allocate memory for " 6959 "issuing SLI_FUNCTION_RESET mailbox " 6960 "command\n"); 6961 return -ENOMEM; 6962 } 6963 6964 /* Setup PCI function reset mailbox-ioctl command */ 6965 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 6966 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 6967 LPFC_SLI4_MBX_EMBED); 6968 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6969 shdr = (union lpfc_sli4_cfg_shdr *) 6970 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 6971 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6972 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 6973 &shdr->response); 6974 if (rc != MBX_TIMEOUT) 6975 mempool_free(mboxq, phba->mbox_mem_pool); 6976 if (shdr_status || shdr_add_status || rc) { 6977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6978 "0495 SLI_FUNCTION_RESET mailbox " 6979 "failed with status x%x add_status x%x," 6980 " mbx status x%x\n", 6981 shdr_status, shdr_add_status, rc); 6982 rc = -ENXIO; 6983 } 6984 break; 6985 case LPFC_SLI_INTF_IF_TYPE_2: 6986 for (num_resets = 0; 6987 num_resets < MAX_IF_TYPE_2_RESETS; 6988 num_resets++) { 6989 reg_data.word0 = 0; 6990 bf_set(lpfc_sliport_ctrl_end, ®_data, 6991 LPFC_SLIPORT_LITTLE_ENDIAN); 6992 bf_set(lpfc_sliport_ctrl_ip, ®_data, 6993 LPFC_SLIPORT_INIT_PORT); 6994 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 6995 CTRLregaddr); 6996 6997 /* 6998 * Poll the Port Status Register and wait for RDY for 6999 * up to 10 seconds. If the port doesn't respond, treat 7000 * it as an error. If the port responds with RN, start 7001 * the loop again. 7002 */ 7003 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7004 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7005 STATUSregaddr, ®_data.word0)) { 7006 rc = -ENODEV; 7007 break; 7008 } 7009 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7010 break; 7011 if (bf_get(lpfc_sliport_status_rn, ®_data)) { 7012 reset_again++; 7013 break; 7014 } 7015 msleep(10); 7016 } 7017 7018 /* 7019 * If the port responds to the init request with 7020 * reset needed, delay for a bit and restart the loop. 7021 */ 7022 if (reset_again) { 7023 msleep(10); 7024 reset_again = 0; 7025 continue; 7026 } 7027 7028 /* Detect any port errors. */ 7029 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7030 ®_data.word0)) { 7031 rc = -ENODEV; 7032 break; 7033 } 7034 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7035 (rdy_chk >= 1000)) { 7036 phba->work_status[0] = readl( 7037 phba->sli4_hba.u.if_type2.ERR1regaddr); 7038 phba->work_status[1] = readl( 7039 phba->sli4_hba.u.if_type2.ERR2regaddr); 7040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7041 "2890 Port Error Detected " 7042 "during Port Reset: " 7043 "port status reg 0x%x, " 7044 "error 1=0x%x, error 2=0x%x\n", 7045 reg_data.word0, 7046 phba->work_status[0], 7047 phba->work_status[1]); 7048 rc = -ENODEV; 7049 } 7050 7051 /* 7052 * Terminate the outer loop provided the Port indicated 7053 * ready within 10 seconds. 7054 */ 7055 if (rdy_chk < 1000) 7056 break; 7057 } 7058 /* delay driver action following IF_TYPE_2 function reset */ 7059 msleep(100); 7060 break; 7061 case LPFC_SLI_INTF_IF_TYPE_1: 7062 default: 7063 break; 7064 } 7065 7066 /* Catch the not-ready port failure after a port reset. */ 7067 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7068 rc = -ENODEV; 7069 7070 return rc; 7071 } 7072 7073 /** 7074 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7075 * @phba: pointer to lpfc hba data structure. 7076 * @cnt: number of nop mailbox commands to send. 7077 * 7078 * This routine is invoked to send a number @cnt of NOP mailbox command and 7079 * wait for each command to complete. 7080 * 7081 * Return: the number of NOP mailbox command completed. 7082 **/ 7083 static int 7084 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7085 { 7086 LPFC_MBOXQ_t *mboxq; 7087 int length, cmdsent; 7088 uint32_t mbox_tmo; 7089 uint32_t rc = 0; 7090 uint32_t shdr_status, shdr_add_status; 7091 union lpfc_sli4_cfg_shdr *shdr; 7092 7093 if (cnt == 0) { 7094 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7095 "2518 Requested to send 0 NOP mailbox cmd\n"); 7096 return cnt; 7097 } 7098 7099 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7100 if (!mboxq) { 7101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7102 "2519 Unable to allocate memory for issuing " 7103 "NOP mailbox command\n"); 7104 return 0; 7105 } 7106 7107 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7108 length = (sizeof(struct lpfc_mbx_nop) - 7109 sizeof(struct lpfc_sli4_cfg_mhdr)); 7110 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7111 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7112 7113 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); 7114 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7115 if (!phba->sli4_hba.intr_enable) 7116 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7117 else 7118 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7119 if (rc == MBX_TIMEOUT) 7120 break; 7121 /* Check return status */ 7122 shdr = (union lpfc_sli4_cfg_shdr *) 7123 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7124 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7125 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7126 &shdr->response); 7127 if (shdr_status || shdr_add_status || rc) { 7128 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7129 "2520 NOP mailbox command failed " 7130 "status x%x add_status x%x mbx " 7131 "status x%x\n", shdr_status, 7132 shdr_add_status, rc); 7133 break; 7134 } 7135 } 7136 7137 if (rc != MBX_TIMEOUT) 7138 mempool_free(mboxq, phba->mbox_mem_pool); 7139 7140 return cmdsent; 7141 } 7142 7143 /** 7144 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7145 * @phba: pointer to lpfc hba data structure. 7146 * 7147 * This routine is invoked to set up the PCI device memory space for device 7148 * with SLI-4 interface spec. 7149 * 7150 * Return codes 7151 * 0 - successful 7152 * other values - error 7153 **/ 7154 static int 7155 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7156 { 7157 struct pci_dev *pdev; 7158 unsigned long bar0map_len, bar1map_len, bar2map_len; 7159 int error = -ENODEV; 7160 uint32_t if_type; 7161 7162 /* Obtain PCI device reference */ 7163 if (!phba->pcidev) 7164 return error; 7165 else 7166 pdev = phba->pcidev; 7167 7168 /* Set the device DMA mask size */ 7169 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7170 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7171 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7172 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7173 return error; 7174 } 7175 } 7176 7177 /* 7178 * The BARs and register set definitions and offset locations are 7179 * dependent on the if_type. 7180 */ 7181 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7182 &phba->sli4_hba.sli_intf.word0)) { 7183 return error; 7184 } 7185 7186 /* There is no SLI3 failback for SLI4 devices. */ 7187 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7188 LPFC_SLI_INTF_VALID) { 7189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7190 "2894 SLI_INTF reg contents invalid " 7191 "sli_intf reg 0x%x\n", 7192 phba->sli4_hba.sli_intf.word0); 7193 return error; 7194 } 7195 7196 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7197 /* 7198 * Get the bus address of SLI4 device Bar regions and the 7199 * number of bytes required by each mapping. The mapping of the 7200 * particular PCI BARs regions is dependent on the type of 7201 * SLI4 device. 7202 */ 7203 if (pci_resource_start(pdev, 0)) { 7204 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7205 bar0map_len = pci_resource_len(pdev, 0); 7206 7207 /* 7208 * Map SLI4 PCI Config Space Register base to a kernel virtual 7209 * addr 7210 */ 7211 phba->sli4_hba.conf_regs_memmap_p = 7212 ioremap(phba->pci_bar0_map, bar0map_len); 7213 if (!phba->sli4_hba.conf_regs_memmap_p) { 7214 dev_printk(KERN_ERR, &pdev->dev, 7215 "ioremap failed for SLI4 PCI config " 7216 "registers.\n"); 7217 goto out; 7218 } 7219 /* Set up BAR0 PCI config space register memory map */ 7220 lpfc_sli4_bar0_register_memmap(phba, if_type); 7221 } else { 7222 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7223 bar0map_len = pci_resource_len(pdev, 1); 7224 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7225 dev_printk(KERN_ERR, &pdev->dev, 7226 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7227 goto out; 7228 } 7229 phba->sli4_hba.conf_regs_memmap_p = 7230 ioremap(phba->pci_bar0_map, bar0map_len); 7231 if (!phba->sli4_hba.conf_regs_memmap_p) { 7232 dev_printk(KERN_ERR, &pdev->dev, 7233 "ioremap failed for SLI4 PCI config " 7234 "registers.\n"); 7235 goto out; 7236 } 7237 lpfc_sli4_bar0_register_memmap(phba, if_type); 7238 } 7239 7240 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7241 (pci_resource_start(pdev, 2))) { 7242 /* 7243 * Map SLI4 if type 0 HBA Control Register base to a kernel 7244 * virtual address and setup the registers. 7245 */ 7246 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7247 bar1map_len = pci_resource_len(pdev, 2); 7248 phba->sli4_hba.ctrl_regs_memmap_p = 7249 ioremap(phba->pci_bar1_map, bar1map_len); 7250 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7251 dev_printk(KERN_ERR, &pdev->dev, 7252 "ioremap failed for SLI4 HBA control registers.\n"); 7253 goto out_iounmap_conf; 7254 } 7255 lpfc_sli4_bar1_register_memmap(phba); 7256 } 7257 7258 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7259 (pci_resource_start(pdev, 4))) { 7260 /* 7261 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7262 * virtual address and setup the registers. 7263 */ 7264 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7265 bar2map_len = pci_resource_len(pdev, 4); 7266 phba->sli4_hba.drbl_regs_memmap_p = 7267 ioremap(phba->pci_bar2_map, bar2map_len); 7268 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7269 dev_printk(KERN_ERR, &pdev->dev, 7270 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7271 goto out_iounmap_ctrl; 7272 } 7273 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7274 if (error) 7275 goto out_iounmap_all; 7276 } 7277 7278 return 0; 7279 7280 out_iounmap_all: 7281 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7282 out_iounmap_ctrl: 7283 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7284 out_iounmap_conf: 7285 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7286 out: 7287 return error; 7288 } 7289 7290 /** 7291 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7292 * @phba: pointer to lpfc hba data structure. 7293 * 7294 * This routine is invoked to unset the PCI device memory space for device 7295 * with SLI-4 interface spec. 7296 **/ 7297 static void 7298 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7299 { 7300 struct pci_dev *pdev; 7301 7302 /* Obtain PCI device reference */ 7303 if (!phba->pcidev) 7304 return; 7305 else 7306 pdev = phba->pcidev; 7307 7308 /* Free coherent DMA memory allocated */ 7309 7310 /* Unmap I/O memory space */ 7311 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7312 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7313 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7314 7315 return; 7316 } 7317 7318 /** 7319 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7320 * @phba: pointer to lpfc hba data structure. 7321 * 7322 * This routine is invoked to enable the MSI-X interrupt vectors to device 7323 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7324 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7325 * invoked, enables either all or nothing, depending on the current 7326 * availability of PCI vector resources. The device driver is responsible 7327 * for calling the individual request_irq() to register each MSI-X vector 7328 * with a interrupt handler, which is done in this function. Note that 7329 * later when device is unloading, the driver should always call free_irq() 7330 * on all MSI-X vectors it has done request_irq() on before calling 7331 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7332 * will be left with MSI-X enabled and leaks its vectors. 7333 * 7334 * Return codes 7335 * 0 - successful 7336 * other values - error 7337 **/ 7338 static int 7339 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7340 { 7341 int rc, i; 7342 LPFC_MBOXQ_t *pmb; 7343 7344 /* Set up MSI-X multi-message vectors */ 7345 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7346 phba->msix_entries[i].entry = i; 7347 7348 /* Configure MSI-X capability structure */ 7349 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7350 ARRAY_SIZE(phba->msix_entries)); 7351 if (rc) { 7352 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7353 "0420 PCI enable MSI-X failed (%d)\n", rc); 7354 goto msi_fail_out; 7355 } 7356 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7358 "0477 MSI-X entry[%d]: vector=x%x " 7359 "message=%d\n", i, 7360 phba->msix_entries[i].vector, 7361 phba->msix_entries[i].entry); 7362 /* 7363 * Assign MSI-X vectors to interrupt handlers 7364 */ 7365 7366 /* vector-0 is associated to slow-path handler */ 7367 rc = request_irq(phba->msix_entries[0].vector, 7368 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7369 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7370 if (rc) { 7371 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7372 "0421 MSI-X slow-path request_irq failed " 7373 "(%d)\n", rc); 7374 goto msi_fail_out; 7375 } 7376 7377 /* vector-1 is associated to fast-path handler */ 7378 rc = request_irq(phba->msix_entries[1].vector, 7379 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7380 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7381 7382 if (rc) { 7383 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7384 "0429 MSI-X fast-path request_irq failed " 7385 "(%d)\n", rc); 7386 goto irq_fail_out; 7387 } 7388 7389 /* 7390 * Configure HBA MSI-X attention conditions to messages 7391 */ 7392 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7393 7394 if (!pmb) { 7395 rc = -ENOMEM; 7396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7397 "0474 Unable to allocate memory for issuing " 7398 "MBOX_CONFIG_MSI command\n"); 7399 goto mem_fail_out; 7400 } 7401 rc = lpfc_config_msi(phba, pmb); 7402 if (rc) 7403 goto mbx_fail_out; 7404 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7405 if (rc != MBX_SUCCESS) { 7406 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7407 "0351 Config MSI mailbox command failed, " 7408 "mbxCmd x%x, mbxStatus x%x\n", 7409 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7410 goto mbx_fail_out; 7411 } 7412 7413 /* Free memory allocated for mailbox command */ 7414 mempool_free(pmb, phba->mbox_mem_pool); 7415 return rc; 7416 7417 mbx_fail_out: 7418 /* Free memory allocated for mailbox command */ 7419 mempool_free(pmb, phba->mbox_mem_pool); 7420 7421 mem_fail_out: 7422 /* free the irq already requested */ 7423 free_irq(phba->msix_entries[1].vector, phba); 7424 7425 irq_fail_out: 7426 /* free the irq already requested */ 7427 free_irq(phba->msix_entries[0].vector, phba); 7428 7429 msi_fail_out: 7430 /* Unconfigure MSI-X capability structure */ 7431 pci_disable_msix(phba->pcidev); 7432 return rc; 7433 } 7434 7435 /** 7436 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7437 * @phba: pointer to lpfc hba data structure. 7438 * 7439 * This routine is invoked to release the MSI-X vectors and then disable the 7440 * MSI-X interrupt mode to device with SLI-3 interface spec. 7441 **/ 7442 static void 7443 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7444 { 7445 int i; 7446 7447 /* Free up MSI-X multi-message vectors */ 7448 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7449 free_irq(phba->msix_entries[i].vector, phba); 7450 /* Disable MSI-X */ 7451 pci_disable_msix(phba->pcidev); 7452 7453 return; 7454 } 7455 7456 /** 7457 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7458 * @phba: pointer to lpfc hba data structure. 7459 * 7460 * This routine is invoked to enable the MSI interrupt mode to device with 7461 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7462 * enable the MSI vector. The device driver is responsible for calling the 7463 * request_irq() to register MSI vector with a interrupt the handler, which 7464 * is done in this function. 7465 * 7466 * Return codes 7467 * 0 - successful 7468 * other values - error 7469 */ 7470 static int 7471 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7472 { 7473 int rc; 7474 7475 rc = pci_enable_msi(phba->pcidev); 7476 if (!rc) 7477 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7478 "0462 PCI enable MSI mode success.\n"); 7479 else { 7480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7481 "0471 PCI enable MSI mode failed (%d)\n", rc); 7482 return rc; 7483 } 7484 7485 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7486 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7487 if (rc) { 7488 pci_disable_msi(phba->pcidev); 7489 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7490 "0478 MSI request_irq failed (%d)\n", rc); 7491 } 7492 return rc; 7493 } 7494 7495 /** 7496 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7497 * @phba: pointer to lpfc hba data structure. 7498 * 7499 * This routine is invoked to disable the MSI interrupt mode to device with 7500 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7501 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7502 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7503 * its vector. 7504 */ 7505 static void 7506 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7507 { 7508 free_irq(phba->pcidev->irq, phba); 7509 pci_disable_msi(phba->pcidev); 7510 return; 7511 } 7512 7513 /** 7514 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7515 * @phba: pointer to lpfc hba data structure. 7516 * 7517 * This routine is invoked to enable device interrupt and associate driver's 7518 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7519 * spec. Depends on the interrupt mode configured to the driver, the driver 7520 * will try to fallback from the configured interrupt mode to an interrupt 7521 * mode which is supported by the platform, kernel, and device in the order 7522 * of: 7523 * MSI-X -> MSI -> IRQ. 7524 * 7525 * Return codes 7526 * 0 - successful 7527 * other values - error 7528 **/ 7529 static uint32_t 7530 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7531 { 7532 uint32_t intr_mode = LPFC_INTR_ERROR; 7533 int retval; 7534 7535 if (cfg_mode == 2) { 7536 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7537 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7538 if (!retval) { 7539 /* Now, try to enable MSI-X interrupt mode */ 7540 retval = lpfc_sli_enable_msix(phba); 7541 if (!retval) { 7542 /* Indicate initialization to MSI-X mode */ 7543 phba->intr_type = MSIX; 7544 intr_mode = 2; 7545 } 7546 } 7547 } 7548 7549 /* Fallback to MSI if MSI-X initialization failed */ 7550 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7551 retval = lpfc_sli_enable_msi(phba); 7552 if (!retval) { 7553 /* Indicate initialization to MSI mode */ 7554 phba->intr_type = MSI; 7555 intr_mode = 1; 7556 } 7557 } 7558 7559 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7560 if (phba->intr_type == NONE) { 7561 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7562 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7563 if (!retval) { 7564 /* Indicate initialization to INTx mode */ 7565 phba->intr_type = INTx; 7566 intr_mode = 0; 7567 } 7568 } 7569 return intr_mode; 7570 } 7571 7572 /** 7573 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7574 * @phba: pointer to lpfc hba data structure. 7575 * 7576 * This routine is invoked to disable device interrupt and disassociate the 7577 * driver's interrupt handler(s) from interrupt vector(s) to device with 7578 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7579 * release the interrupt vector(s) for the message signaled interrupt. 7580 **/ 7581 static void 7582 lpfc_sli_disable_intr(struct lpfc_hba *phba) 7583 { 7584 /* Disable the currently initialized interrupt mode */ 7585 if (phba->intr_type == MSIX) 7586 lpfc_sli_disable_msix(phba); 7587 else if (phba->intr_type == MSI) 7588 lpfc_sli_disable_msi(phba); 7589 else if (phba->intr_type == INTx) 7590 free_irq(phba->pcidev->irq, phba); 7591 7592 /* Reset interrupt management states */ 7593 phba->intr_type = NONE; 7594 phba->sli.slistat.sli_intr = 0; 7595 7596 return; 7597 } 7598 7599 /** 7600 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7601 * @phba: pointer to lpfc hba data structure. 7602 * 7603 * This routine is invoked to enable the MSI-X interrupt vectors to device 7604 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7605 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7606 * enables either all or nothing, depending on the current availability of 7607 * PCI vector resources. The device driver is responsible for calling the 7608 * individual request_irq() to register each MSI-X vector with a interrupt 7609 * handler, which is done in this function. Note that later when device is 7610 * unloading, the driver should always call free_irq() on all MSI-X vectors 7611 * it has done request_irq() on before calling pci_disable_msix(). Failure 7612 * to do so results in a BUG_ON() and a device will be left with MSI-X 7613 * enabled and leaks its vectors. 7614 * 7615 * Return codes 7616 * 0 - successful 7617 * other values - error 7618 **/ 7619 static int 7620 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7621 { 7622 int vectors, rc, index; 7623 7624 /* Set up MSI-X multi-message vectors */ 7625 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7626 phba->sli4_hba.msix_entries[index].entry = index; 7627 7628 /* Configure MSI-X capability structure */ 7629 vectors = phba->sli4_hba.cfg_eqn; 7630 enable_msix_vectors: 7631 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7632 vectors); 7633 if (rc > 1) { 7634 vectors = rc; 7635 goto enable_msix_vectors; 7636 } else if (rc) { 7637 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7638 "0484 PCI enable MSI-X failed (%d)\n", rc); 7639 goto msi_fail_out; 7640 } 7641 7642 /* Log MSI-X vector assignment */ 7643 for (index = 0; index < vectors; index++) 7644 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7645 "0489 MSI-X entry[%d]: vector=x%x " 7646 "message=%d\n", index, 7647 phba->sli4_hba.msix_entries[index].vector, 7648 phba->sli4_hba.msix_entries[index].entry); 7649 /* 7650 * Assign MSI-X vectors to interrupt handlers 7651 */ 7652 if (vectors > 1) 7653 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7654 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7655 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7656 else 7657 /* All Interrupts need to be handled by one EQ */ 7658 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7659 &lpfc_sli4_intr_handler, IRQF_SHARED, 7660 LPFC_DRIVER_NAME, phba); 7661 if (rc) { 7662 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7663 "0485 MSI-X slow-path request_irq failed " 7664 "(%d)\n", rc); 7665 goto msi_fail_out; 7666 } 7667 7668 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7669 for (index = 1; index < vectors; index++) { 7670 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7671 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7672 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7673 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7674 LPFC_FP_DRIVER_HANDLER_NAME, 7675 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7676 if (rc) { 7677 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7678 "0486 MSI-X fast-path (%d) " 7679 "request_irq failed (%d)\n", index, rc); 7680 goto cfg_fail_out; 7681 } 7682 } 7683 phba->sli4_hba.msix_vec_nr = vectors; 7684 7685 return rc; 7686 7687 cfg_fail_out: 7688 /* free the irq already requested */ 7689 for (--index; index >= 1; index--) 7690 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7691 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7692 7693 /* free the irq already requested */ 7694 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7695 7696 msi_fail_out: 7697 /* Unconfigure MSI-X capability structure */ 7698 pci_disable_msix(phba->pcidev); 7699 return rc; 7700 } 7701 7702 /** 7703 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7704 * @phba: pointer to lpfc hba data structure. 7705 * 7706 * This routine is invoked to release the MSI-X vectors and then disable the 7707 * MSI-X interrupt mode to device with SLI-4 interface spec. 7708 **/ 7709 static void 7710 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7711 { 7712 int index; 7713 7714 /* Free up MSI-X multi-message vectors */ 7715 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7716 7717 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7718 free_irq(phba->sli4_hba.msix_entries[index].vector, 7719 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7720 7721 /* Disable MSI-X */ 7722 pci_disable_msix(phba->pcidev); 7723 7724 return; 7725 } 7726 7727 /** 7728 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7729 * @phba: pointer to lpfc hba data structure. 7730 * 7731 * This routine is invoked to enable the MSI interrupt mode to device with 7732 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7733 * to enable the MSI vector. The device driver is responsible for calling 7734 * the request_irq() to register MSI vector with a interrupt the handler, 7735 * which is done in this function. 7736 * 7737 * Return codes 7738 * 0 - successful 7739 * other values - error 7740 **/ 7741 static int 7742 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7743 { 7744 int rc, index; 7745 7746 rc = pci_enable_msi(phba->pcidev); 7747 if (!rc) 7748 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7749 "0487 PCI enable MSI mode success.\n"); 7750 else { 7751 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7752 "0488 PCI enable MSI mode failed (%d)\n", rc); 7753 return rc; 7754 } 7755 7756 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7757 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7758 if (rc) { 7759 pci_disable_msi(phba->pcidev); 7760 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7761 "0490 MSI request_irq failed (%d)\n", rc); 7762 return rc; 7763 } 7764 7765 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7766 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7767 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7768 } 7769 7770 return 0; 7771 } 7772 7773 /** 7774 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7775 * @phba: pointer to lpfc hba data structure. 7776 * 7777 * This routine is invoked to disable the MSI interrupt mode to device with 7778 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7779 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7780 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7781 * its vector. 7782 **/ 7783 static void 7784 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7785 { 7786 free_irq(phba->pcidev->irq, phba); 7787 pci_disable_msi(phba->pcidev); 7788 return; 7789 } 7790 7791 /** 7792 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7793 * @phba: pointer to lpfc hba data structure. 7794 * 7795 * This routine is invoked to enable device interrupt and associate driver's 7796 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7797 * interface spec. Depends on the interrupt mode configured to the driver, 7798 * the driver will try to fallback from the configured interrupt mode to an 7799 * interrupt mode which is supported by the platform, kernel, and device in 7800 * the order of: 7801 * MSI-X -> MSI -> IRQ. 7802 * 7803 * Return codes 7804 * 0 - successful 7805 * other values - error 7806 **/ 7807 static uint32_t 7808 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7809 { 7810 uint32_t intr_mode = LPFC_INTR_ERROR; 7811 int retval, index; 7812 7813 if (cfg_mode == 2) { 7814 /* Preparation before conf_msi mbox cmd */ 7815 retval = 0; 7816 if (!retval) { 7817 /* Now, try to enable MSI-X interrupt mode */ 7818 retval = lpfc_sli4_enable_msix(phba); 7819 if (!retval) { 7820 /* Indicate initialization to MSI-X mode */ 7821 phba->intr_type = MSIX; 7822 intr_mode = 2; 7823 } 7824 } 7825 } 7826 7827 /* Fallback to MSI if MSI-X initialization failed */ 7828 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7829 retval = lpfc_sli4_enable_msi(phba); 7830 if (!retval) { 7831 /* Indicate initialization to MSI mode */ 7832 phba->intr_type = MSI; 7833 intr_mode = 1; 7834 } 7835 } 7836 7837 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7838 if (phba->intr_type == NONE) { 7839 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7840 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7841 if (!retval) { 7842 /* Indicate initialization to INTx mode */ 7843 phba->intr_type = INTx; 7844 intr_mode = 0; 7845 for (index = 0; index < phba->cfg_fcp_eq_count; 7846 index++) { 7847 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7848 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7849 } 7850 } 7851 } 7852 return intr_mode; 7853 } 7854 7855 /** 7856 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7857 * @phba: pointer to lpfc hba data structure. 7858 * 7859 * This routine is invoked to disable device interrupt and disassociate 7860 * the driver's interrupt handler(s) from interrupt vector(s) to device 7861 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7862 * will release the interrupt vector(s) for the message signaled interrupt. 7863 **/ 7864 static void 7865 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7866 { 7867 /* Disable the currently initialized interrupt mode */ 7868 if (phba->intr_type == MSIX) 7869 lpfc_sli4_disable_msix(phba); 7870 else if (phba->intr_type == MSI) 7871 lpfc_sli4_disable_msi(phba); 7872 else if (phba->intr_type == INTx) 7873 free_irq(phba->pcidev->irq, phba); 7874 7875 /* Reset interrupt management states */ 7876 phba->intr_type = NONE; 7877 phba->sli.slistat.sli_intr = 0; 7878 7879 return; 7880 } 7881 7882 /** 7883 * lpfc_unset_hba - Unset SLI3 hba device initialization 7884 * @phba: pointer to lpfc hba data structure. 7885 * 7886 * This routine is invoked to unset the HBA device initialization steps to 7887 * a device with SLI-3 interface spec. 7888 **/ 7889 static void 7890 lpfc_unset_hba(struct lpfc_hba *phba) 7891 { 7892 struct lpfc_vport *vport = phba->pport; 7893 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7894 7895 spin_lock_irq(shost->host_lock); 7896 vport->load_flag |= FC_UNLOADING; 7897 spin_unlock_irq(shost->host_lock); 7898 7899 lpfc_stop_hba_timers(phba); 7900 7901 phba->pport->work_port_events = 0; 7902 7903 lpfc_sli_hba_down(phba); 7904 7905 lpfc_sli_brdrestart(phba); 7906 7907 lpfc_sli_disable_intr(phba); 7908 7909 return; 7910 } 7911 7912 /** 7913 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 7914 * @phba: pointer to lpfc hba data structure. 7915 * 7916 * This routine is invoked to unset the HBA device initialization steps to 7917 * a device with SLI-4 interface spec. 7918 **/ 7919 static void 7920 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 7921 { 7922 struct lpfc_vport *vport = phba->pport; 7923 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7924 7925 spin_lock_irq(shost->host_lock); 7926 vport->load_flag |= FC_UNLOADING; 7927 spin_unlock_irq(shost->host_lock); 7928 7929 phba->pport->work_port_events = 0; 7930 7931 /* Stop the SLI4 device port */ 7932 lpfc_stop_port(phba); 7933 7934 lpfc_sli4_disable_intr(phba); 7935 7936 /* Reset SLI4 HBA FCoE function */ 7937 lpfc_pci_function_reset(phba); 7938 7939 return; 7940 } 7941 7942 /** 7943 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 7944 * @phba: Pointer to HBA context object. 7945 * 7946 * This function is called in the SLI4 code path to wait for completion 7947 * of device's XRIs exchange busy. It will check the XRI exchange busy 7948 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 7949 * that, it will check the XRI exchange busy on outstanding FCP and ELS 7950 * I/Os every 30 seconds, log error message, and wait forever. Only when 7951 * all XRI exchange busy complete, the driver unload shall proceed with 7952 * invoking the function reset ioctl mailbox command to the CNA and the 7953 * the rest of the driver unload resource release. 7954 **/ 7955 static void 7956 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 7957 { 7958 int wait_time = 0; 7959 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7960 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7961 7962 while (!fcp_xri_cmpl || !els_xri_cmpl) { 7963 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 7964 if (!fcp_xri_cmpl) 7965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7966 "2877 FCP XRI exchange busy " 7967 "wait time: %d seconds.\n", 7968 wait_time/1000); 7969 if (!els_xri_cmpl) 7970 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7971 "2878 ELS XRI exchange busy " 7972 "wait time: %d seconds.\n", 7973 wait_time/1000); 7974 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 7975 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 7976 } else { 7977 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 7978 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 7979 } 7980 fcp_xri_cmpl = 7981 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 7982 els_xri_cmpl = 7983 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 7984 } 7985 } 7986 7987 /** 7988 * lpfc_sli4_hba_unset - Unset the fcoe hba 7989 * @phba: Pointer to HBA context object. 7990 * 7991 * This function is called in the SLI4 code path to reset the HBA's FCoE 7992 * function. The caller is not required to hold any lock. This routine 7993 * issues PCI function reset mailbox command to reset the FCoE function. 7994 * At the end of the function, it calls lpfc_hba_down_post function to 7995 * free any pending commands. 7996 **/ 7997 static void 7998 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 7999 { 8000 int wait_cnt = 0; 8001 LPFC_MBOXQ_t *mboxq; 8002 struct pci_dev *pdev = phba->pcidev; 8003 8004 lpfc_stop_hba_timers(phba); 8005 phba->sli4_hba.intr_enable = 0; 8006 8007 /* 8008 * Gracefully wait out the potential current outstanding asynchronous 8009 * mailbox command. 8010 */ 8011 8012 /* First, block any pending async mailbox command from posted */ 8013 spin_lock_irq(&phba->hbalock); 8014 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8015 spin_unlock_irq(&phba->hbalock); 8016 /* Now, trying to wait it out if we can */ 8017 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8018 msleep(10); 8019 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8020 break; 8021 } 8022 /* Forcefully release the outstanding mailbox command if timed out */ 8023 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8024 spin_lock_irq(&phba->hbalock); 8025 mboxq = phba->sli.mbox_active; 8026 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8027 __lpfc_mbox_cmpl_put(phba, mboxq); 8028 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8029 phba->sli.mbox_active = NULL; 8030 spin_unlock_irq(&phba->hbalock); 8031 } 8032 8033 /* Abort all iocbs associated with the hba */ 8034 lpfc_sli_hba_iocb_abort(phba); 8035 8036 /* Wait for completion of device XRI exchange busy */ 8037 lpfc_sli4_xri_exchange_busy_wait(phba); 8038 8039 /* Disable PCI subsystem interrupt */ 8040 lpfc_sli4_disable_intr(phba); 8041 8042 /* Disable SR-IOV if enabled */ 8043 if (phba->cfg_sriov_nr_virtfn) 8044 pci_disable_sriov(pdev); 8045 8046 /* Stop kthread signal shall trigger work_done one more time */ 8047 kthread_stop(phba->worker_thread); 8048 8049 /* Reset SLI4 HBA FCoE function */ 8050 lpfc_pci_function_reset(phba); 8051 8052 /* Stop the SLI4 device port */ 8053 phba->pport->work_port_events = 0; 8054 } 8055 8056 /** 8057 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8058 * @phba: Pointer to HBA context object. 8059 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8060 * 8061 * This function is called in the SLI4 code path to read the port's 8062 * sli4 capabilities. 8063 * 8064 * This function may be be called from any context that can block-wait 8065 * for the completion. The expectation is that this routine is called 8066 * typically from probe_one or from the online routine. 8067 **/ 8068 int 8069 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8070 { 8071 int rc; 8072 struct lpfc_mqe *mqe; 8073 struct lpfc_pc_sli4_params *sli4_params; 8074 uint32_t mbox_tmo; 8075 8076 rc = 0; 8077 mqe = &mboxq->u.mqe; 8078 8079 /* Read the port's SLI4 Parameters port capabilities */ 8080 lpfc_pc_sli4_params(mboxq); 8081 if (!phba->sli4_hba.intr_enable) 8082 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8083 else { 8084 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES); 8085 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8086 } 8087 8088 if (unlikely(rc)) 8089 return 1; 8090 8091 sli4_params = &phba->sli4_hba.pc_sli4_params; 8092 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8093 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8094 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8095 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8096 &mqe->un.sli4_params); 8097 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8098 &mqe->un.sli4_params); 8099 sli4_params->proto_types = mqe->un.sli4_params.word3; 8100 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8101 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8102 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8103 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8104 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8105 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8106 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8107 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8108 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8109 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8110 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8111 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8112 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8113 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8114 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8115 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8116 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8117 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8118 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8119 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8120 8121 /* Make sure that sge_supp_len can be handled by the driver */ 8122 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8123 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8124 8125 return rc; 8126 } 8127 8128 /** 8129 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8130 * @phba: Pointer to HBA context object. 8131 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8132 * 8133 * This function is called in the SLI4 code path to read the port's 8134 * sli4 capabilities. 8135 * 8136 * This function may be be called from any context that can block-wait 8137 * for the completion. The expectation is that this routine is called 8138 * typically from probe_one or from the online routine. 8139 **/ 8140 int 8141 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8142 { 8143 int rc; 8144 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8145 struct lpfc_pc_sli4_params *sli4_params; 8146 int length; 8147 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8148 8149 /* 8150 * By default, the driver assumes the SLI4 port requires RPI 8151 * header postings. The SLI4_PARAM response will correct this 8152 * assumption. 8153 */ 8154 phba->sli4_hba.rpi_hdrs_in_use = 1; 8155 8156 /* Read the port's SLI4 Config Parameters */ 8157 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8158 sizeof(struct lpfc_sli4_cfg_mhdr)); 8159 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8160 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8161 length, LPFC_SLI4_MBX_EMBED); 8162 if (!phba->sli4_hba.intr_enable) 8163 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8164 else 8165 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, 8166 lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG)); 8167 if (unlikely(rc)) 8168 return rc; 8169 sli4_params = &phba->sli4_hba.pc_sli4_params; 8170 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8171 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8172 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8173 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8174 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8175 mbx_sli4_parameters); 8176 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8177 mbx_sli4_parameters); 8178 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8179 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8180 else 8181 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8182 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8183 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8184 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8185 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8186 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8187 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8188 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8189 mbx_sli4_parameters); 8190 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8191 mbx_sli4_parameters); 8192 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8193 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8194 8195 /* Make sure that sge_supp_len can be handled by the driver */ 8196 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8197 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8198 8199 return 0; 8200 } 8201 8202 /** 8203 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8204 * @pdev: pointer to PCI device 8205 * @pid: pointer to PCI device identifier 8206 * 8207 * This routine is to be called to attach a device with SLI-3 interface spec 8208 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8209 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8210 * information of the device and driver to see if the driver state that it can 8211 * support this kind of device. If the match is successful, the driver core 8212 * invokes this routine. If this routine determines it can claim the HBA, it 8213 * does all the initialization that it needs to do to handle the HBA properly. 8214 * 8215 * Return code 8216 * 0 - driver can claim the device 8217 * negative value - driver can not claim the device 8218 **/ 8219 static int __devinit 8220 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8221 { 8222 struct lpfc_hba *phba; 8223 struct lpfc_vport *vport = NULL; 8224 struct Scsi_Host *shost = NULL; 8225 int error; 8226 uint32_t cfg_mode, intr_mode; 8227 8228 /* Allocate memory for HBA structure */ 8229 phba = lpfc_hba_alloc(pdev); 8230 if (!phba) 8231 return -ENOMEM; 8232 8233 /* Perform generic PCI device enabling operation */ 8234 error = lpfc_enable_pci_dev(phba); 8235 if (error) { 8236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8237 "1401 Failed to enable pci device.\n"); 8238 goto out_free_phba; 8239 } 8240 8241 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8242 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8243 if (error) 8244 goto out_disable_pci_dev; 8245 8246 /* Set up SLI-3 specific device PCI memory space */ 8247 error = lpfc_sli_pci_mem_setup(phba); 8248 if (error) { 8249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8250 "1402 Failed to set up pci memory space.\n"); 8251 goto out_disable_pci_dev; 8252 } 8253 8254 /* Set up phase-1 common device driver resources */ 8255 error = lpfc_setup_driver_resource_phase1(phba); 8256 if (error) { 8257 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8258 "1403 Failed to set up driver resource.\n"); 8259 goto out_unset_pci_mem_s3; 8260 } 8261 8262 /* Set up SLI-3 specific device driver resources */ 8263 error = lpfc_sli_driver_resource_setup(phba); 8264 if (error) { 8265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8266 "1404 Failed to set up driver resource.\n"); 8267 goto out_unset_pci_mem_s3; 8268 } 8269 8270 /* Initialize and populate the iocb list per host */ 8271 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8272 if (error) { 8273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8274 "1405 Failed to initialize iocb list.\n"); 8275 goto out_unset_driver_resource_s3; 8276 } 8277 8278 /* Set up common device driver resources */ 8279 error = lpfc_setup_driver_resource_phase2(phba); 8280 if (error) { 8281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8282 "1406 Failed to set up driver resource.\n"); 8283 goto out_free_iocb_list; 8284 } 8285 8286 /* Create SCSI host to the physical port */ 8287 error = lpfc_create_shost(phba); 8288 if (error) { 8289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8290 "1407 Failed to create scsi host.\n"); 8291 goto out_unset_driver_resource; 8292 } 8293 8294 /* Configure sysfs attributes */ 8295 vport = phba->pport; 8296 error = lpfc_alloc_sysfs_attr(vport); 8297 if (error) { 8298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8299 "1476 Failed to allocate sysfs attr\n"); 8300 goto out_destroy_shost; 8301 } 8302 8303 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8304 /* Now, trying to enable interrupt and bring up the device */ 8305 cfg_mode = phba->cfg_use_msi; 8306 while (true) { 8307 /* Put device to a known state before enabling interrupt */ 8308 lpfc_stop_port(phba); 8309 /* Configure and enable interrupt */ 8310 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8311 if (intr_mode == LPFC_INTR_ERROR) { 8312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8313 "0431 Failed to enable interrupt.\n"); 8314 error = -ENODEV; 8315 goto out_free_sysfs_attr; 8316 } 8317 /* SLI-3 HBA setup */ 8318 if (lpfc_sli_hba_setup(phba)) { 8319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8320 "1477 Failed to set up hba\n"); 8321 error = -ENODEV; 8322 goto out_remove_device; 8323 } 8324 8325 /* Wait 50ms for the interrupts of previous mailbox commands */ 8326 msleep(50); 8327 /* Check active interrupts on message signaled interrupts */ 8328 if (intr_mode == 0 || 8329 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8330 /* Log the current active interrupt mode */ 8331 phba->intr_mode = intr_mode; 8332 lpfc_log_intr_mode(phba, intr_mode); 8333 break; 8334 } else { 8335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8336 "0447 Configure interrupt mode (%d) " 8337 "failed active interrupt test.\n", 8338 intr_mode); 8339 /* Disable the current interrupt mode */ 8340 lpfc_sli_disable_intr(phba); 8341 /* Try next level of interrupt mode */ 8342 cfg_mode = --intr_mode; 8343 } 8344 } 8345 8346 /* Perform post initialization setup */ 8347 lpfc_post_init_setup(phba); 8348 8349 /* Check if there are static vports to be created. */ 8350 lpfc_create_static_vport(phba); 8351 8352 return 0; 8353 8354 out_remove_device: 8355 lpfc_unset_hba(phba); 8356 out_free_sysfs_attr: 8357 lpfc_free_sysfs_attr(vport); 8358 out_destroy_shost: 8359 lpfc_destroy_shost(phba); 8360 out_unset_driver_resource: 8361 lpfc_unset_driver_resource_phase2(phba); 8362 out_free_iocb_list: 8363 lpfc_free_iocb_list(phba); 8364 out_unset_driver_resource_s3: 8365 lpfc_sli_driver_resource_unset(phba); 8366 out_unset_pci_mem_s3: 8367 lpfc_sli_pci_mem_unset(phba); 8368 out_disable_pci_dev: 8369 lpfc_disable_pci_dev(phba); 8370 if (shost) 8371 scsi_host_put(shost); 8372 out_free_phba: 8373 lpfc_hba_free(phba); 8374 return error; 8375 } 8376 8377 /** 8378 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8379 * @pdev: pointer to PCI device 8380 * 8381 * This routine is to be called to disattach a device with SLI-3 interface 8382 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8383 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8384 * device to be removed from the PCI subsystem properly. 8385 **/ 8386 static void __devexit 8387 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8388 { 8389 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8390 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8391 struct lpfc_vport **vports; 8392 struct lpfc_hba *phba = vport->phba; 8393 int i; 8394 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8395 8396 spin_lock_irq(&phba->hbalock); 8397 vport->load_flag |= FC_UNLOADING; 8398 spin_unlock_irq(&phba->hbalock); 8399 8400 lpfc_free_sysfs_attr(vport); 8401 8402 /* Release all the vports against this physical port */ 8403 vports = lpfc_create_vport_work_array(phba); 8404 if (vports != NULL) 8405 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8406 fc_vport_terminate(vports[i]->fc_vport); 8407 lpfc_destroy_vport_work_array(phba, vports); 8408 8409 /* Remove FC host and then SCSI host with the physical port */ 8410 fc_remove_host(shost); 8411 scsi_remove_host(shost); 8412 lpfc_cleanup(vport); 8413 8414 /* 8415 * Bring down the SLI Layer. This step disable all interrupts, 8416 * clears the rings, discards all mailbox commands, and resets 8417 * the HBA. 8418 */ 8419 8420 /* HBA interrupt will be disabled after this call */ 8421 lpfc_sli_hba_down(phba); 8422 /* Stop kthread signal shall trigger work_done one more time */ 8423 kthread_stop(phba->worker_thread); 8424 /* Final cleanup of txcmplq and reset the HBA */ 8425 lpfc_sli_brdrestart(phba); 8426 8427 lpfc_stop_hba_timers(phba); 8428 spin_lock_irq(&phba->hbalock); 8429 list_del_init(&vport->listentry); 8430 spin_unlock_irq(&phba->hbalock); 8431 8432 lpfc_debugfs_terminate(vport); 8433 8434 /* Disable SR-IOV if enabled */ 8435 if (phba->cfg_sriov_nr_virtfn) 8436 pci_disable_sriov(pdev); 8437 8438 /* Disable interrupt */ 8439 lpfc_sli_disable_intr(phba); 8440 8441 pci_set_drvdata(pdev, NULL); 8442 scsi_host_put(shost); 8443 8444 /* 8445 * Call scsi_free before mem_free since scsi bufs are released to their 8446 * corresponding pools here. 8447 */ 8448 lpfc_scsi_free(phba); 8449 lpfc_mem_free_all(phba); 8450 8451 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8452 phba->hbqslimp.virt, phba->hbqslimp.phys); 8453 8454 /* Free resources associated with SLI2 interface */ 8455 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8456 phba->slim2p.virt, phba->slim2p.phys); 8457 8458 /* unmap adapter SLIM and Control Registers */ 8459 iounmap(phba->ctrl_regs_memmap_p); 8460 iounmap(phba->slim_memmap_p); 8461 8462 lpfc_hba_free(phba); 8463 8464 pci_release_selected_regions(pdev, bars); 8465 pci_disable_device(pdev); 8466 } 8467 8468 /** 8469 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8470 * @pdev: pointer to PCI device 8471 * @msg: power management message 8472 * 8473 * This routine is to be called from the kernel's PCI subsystem to support 8474 * system Power Management (PM) to device with SLI-3 interface spec. When 8475 * PM invokes this method, it quiesces the device by stopping the driver's 8476 * worker thread for the device, turning off device's interrupt and DMA, 8477 * and bring the device offline. Note that as the driver implements the 8478 * minimum PM requirements to a power-aware driver's PM support for the 8479 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8480 * to the suspend() method call will be treated as SUSPEND and the driver will 8481 * fully reinitialize its device during resume() method call, the driver will 8482 * set device to PCI_D3hot state in PCI config space instead of setting it 8483 * according to the @msg provided by the PM. 8484 * 8485 * Return code 8486 * 0 - driver suspended the device 8487 * Error otherwise 8488 **/ 8489 static int 8490 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8491 { 8492 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8493 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8494 8495 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8496 "0473 PCI device Power Management suspend.\n"); 8497 8498 /* Bring down the device */ 8499 lpfc_offline_prep(phba); 8500 lpfc_offline(phba); 8501 kthread_stop(phba->worker_thread); 8502 8503 /* Disable interrupt from device */ 8504 lpfc_sli_disable_intr(phba); 8505 8506 /* Save device state to PCI config space */ 8507 pci_save_state(pdev); 8508 pci_set_power_state(pdev, PCI_D3hot); 8509 8510 return 0; 8511 } 8512 8513 /** 8514 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8515 * @pdev: pointer to PCI device 8516 * 8517 * This routine is to be called from the kernel's PCI subsystem to support 8518 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8519 * invokes this method, it restores the device's PCI config space state and 8520 * fully reinitializes the device and brings it online. Note that as the 8521 * driver implements the minimum PM requirements to a power-aware driver's 8522 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8523 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8524 * driver will fully reinitialize its device during resume() method call, 8525 * the device will be set to PCI_D0 directly in PCI config space before 8526 * restoring the state. 8527 * 8528 * Return code 8529 * 0 - driver suspended the device 8530 * Error otherwise 8531 **/ 8532 static int 8533 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8534 { 8535 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8536 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8537 uint32_t intr_mode; 8538 int error; 8539 8540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8541 "0452 PCI device Power Management resume.\n"); 8542 8543 /* Restore device state from PCI config space */ 8544 pci_set_power_state(pdev, PCI_D0); 8545 pci_restore_state(pdev); 8546 8547 /* 8548 * As the new kernel behavior of pci_restore_state() API call clears 8549 * device saved_state flag, need to save the restored state again. 8550 */ 8551 pci_save_state(pdev); 8552 8553 if (pdev->is_busmaster) 8554 pci_set_master(pdev); 8555 8556 /* Startup the kernel thread for this host adapter. */ 8557 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8558 "lpfc_worker_%d", phba->brd_no); 8559 if (IS_ERR(phba->worker_thread)) { 8560 error = PTR_ERR(phba->worker_thread); 8561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8562 "0434 PM resume failed to start worker " 8563 "thread: error=x%x.\n", error); 8564 return error; 8565 } 8566 8567 /* Configure and enable interrupt */ 8568 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8569 if (intr_mode == LPFC_INTR_ERROR) { 8570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8571 "0430 PM resume Failed to enable interrupt\n"); 8572 return -EIO; 8573 } else 8574 phba->intr_mode = intr_mode; 8575 8576 /* Restart HBA and bring it online */ 8577 lpfc_sli_brdrestart(phba); 8578 lpfc_online(phba); 8579 8580 /* Log the current active interrupt mode */ 8581 lpfc_log_intr_mode(phba, phba->intr_mode); 8582 8583 return 0; 8584 } 8585 8586 /** 8587 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8588 * @phba: pointer to lpfc hba data structure. 8589 * 8590 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8591 * aborts all the outstanding SCSI I/Os to the pci device. 8592 **/ 8593 static void 8594 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8595 { 8596 struct lpfc_sli *psli = &phba->sli; 8597 struct lpfc_sli_ring *pring; 8598 8599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8600 "2723 PCI channel I/O abort preparing for recovery\n"); 8601 8602 /* 8603 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8604 * and let the SCSI mid-layer to retry them to recover. 8605 */ 8606 pring = &psli->ring[psli->fcp_ring]; 8607 lpfc_sli_abort_iocb_ring(phba, pring); 8608 } 8609 8610 /** 8611 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8612 * @phba: pointer to lpfc hba data structure. 8613 * 8614 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8615 * disables the device interrupt and pci device, and aborts the internal FCP 8616 * pending I/Os. 8617 **/ 8618 static void 8619 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8620 { 8621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8622 "2710 PCI channel disable preparing for reset\n"); 8623 8624 /* Block any management I/Os to the device */ 8625 lpfc_block_mgmt_io(phba); 8626 8627 /* Block all SCSI devices' I/Os on the host */ 8628 lpfc_scsi_dev_block(phba); 8629 8630 /* stop all timers */ 8631 lpfc_stop_hba_timers(phba); 8632 8633 /* Disable interrupt and pci device */ 8634 lpfc_sli_disable_intr(phba); 8635 pci_disable_device(phba->pcidev); 8636 8637 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8638 lpfc_sli_flush_fcp_rings(phba); 8639 } 8640 8641 /** 8642 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8643 * @phba: pointer to lpfc hba data structure. 8644 * 8645 * This routine is called to prepare the SLI3 device for PCI slot permanently 8646 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8647 * pending I/Os. 8648 **/ 8649 static void 8650 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8651 { 8652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8653 "2711 PCI channel permanent disable for failure\n"); 8654 /* Block all SCSI devices' I/Os on the host */ 8655 lpfc_scsi_dev_block(phba); 8656 8657 /* stop all timers */ 8658 lpfc_stop_hba_timers(phba); 8659 8660 /* Clean up all driver's outstanding SCSI I/Os */ 8661 lpfc_sli_flush_fcp_rings(phba); 8662 } 8663 8664 /** 8665 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8666 * @pdev: pointer to PCI device. 8667 * @state: the current PCI connection state. 8668 * 8669 * This routine is called from the PCI subsystem for I/O error handling to 8670 * device with SLI-3 interface spec. This function is called by the PCI 8671 * subsystem after a PCI bus error affecting this device has been detected. 8672 * When this function is invoked, it will need to stop all the I/Os and 8673 * interrupt(s) to the device. Once that is done, it will return 8674 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8675 * as desired. 8676 * 8677 * Return codes 8678 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8679 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8680 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8681 **/ 8682 static pci_ers_result_t 8683 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8684 { 8685 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8686 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8687 8688 switch (state) { 8689 case pci_channel_io_normal: 8690 /* Non-fatal error, prepare for recovery */ 8691 lpfc_sli_prep_dev_for_recover(phba); 8692 return PCI_ERS_RESULT_CAN_RECOVER; 8693 case pci_channel_io_frozen: 8694 /* Fatal error, prepare for slot reset */ 8695 lpfc_sli_prep_dev_for_reset(phba); 8696 return PCI_ERS_RESULT_NEED_RESET; 8697 case pci_channel_io_perm_failure: 8698 /* Permanent failure, prepare for device down */ 8699 lpfc_sli_prep_dev_for_perm_failure(phba); 8700 return PCI_ERS_RESULT_DISCONNECT; 8701 default: 8702 /* Unknown state, prepare and request slot reset */ 8703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8704 "0472 Unknown PCI error state: x%x\n", state); 8705 lpfc_sli_prep_dev_for_reset(phba); 8706 return PCI_ERS_RESULT_NEED_RESET; 8707 } 8708 } 8709 8710 /** 8711 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8712 * @pdev: pointer to PCI device. 8713 * 8714 * This routine is called from the PCI subsystem for error handling to 8715 * device with SLI-3 interface spec. This is called after PCI bus has been 8716 * reset to restart the PCI card from scratch, as if from a cold-boot. 8717 * During the PCI subsystem error recovery, after driver returns 8718 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8719 * recovery and then call this routine before calling the .resume method 8720 * to recover the device. This function will initialize the HBA device, 8721 * enable the interrupt, but it will just put the HBA to offline state 8722 * without passing any I/O traffic. 8723 * 8724 * Return codes 8725 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8726 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8727 */ 8728 static pci_ers_result_t 8729 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8730 { 8731 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8732 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8733 struct lpfc_sli *psli = &phba->sli; 8734 uint32_t intr_mode; 8735 8736 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8737 if (pci_enable_device_mem(pdev)) { 8738 printk(KERN_ERR "lpfc: Cannot re-enable " 8739 "PCI device after reset.\n"); 8740 return PCI_ERS_RESULT_DISCONNECT; 8741 } 8742 8743 pci_restore_state(pdev); 8744 8745 /* 8746 * As the new kernel behavior of pci_restore_state() API call clears 8747 * device saved_state flag, need to save the restored state again. 8748 */ 8749 pci_save_state(pdev); 8750 8751 if (pdev->is_busmaster) 8752 pci_set_master(pdev); 8753 8754 spin_lock_irq(&phba->hbalock); 8755 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8756 spin_unlock_irq(&phba->hbalock); 8757 8758 /* Configure and enable interrupt */ 8759 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8760 if (intr_mode == LPFC_INTR_ERROR) { 8761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8762 "0427 Cannot re-enable interrupt after " 8763 "slot reset.\n"); 8764 return PCI_ERS_RESULT_DISCONNECT; 8765 } else 8766 phba->intr_mode = intr_mode; 8767 8768 /* Take device offline, it will perform cleanup */ 8769 lpfc_offline_prep(phba); 8770 lpfc_offline(phba); 8771 lpfc_sli_brdrestart(phba); 8772 8773 /* Log the current active interrupt mode */ 8774 lpfc_log_intr_mode(phba, phba->intr_mode); 8775 8776 return PCI_ERS_RESULT_RECOVERED; 8777 } 8778 8779 /** 8780 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8781 * @pdev: pointer to PCI device 8782 * 8783 * This routine is called from the PCI subsystem for error handling to device 8784 * with SLI-3 interface spec. It is called when kernel error recovery tells 8785 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8786 * error recovery. After this call, traffic can start to flow from this device 8787 * again. 8788 */ 8789 static void 8790 lpfc_io_resume_s3(struct pci_dev *pdev) 8791 { 8792 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8793 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8794 8795 /* Bring device online, it will be no-op for non-fatal error resume */ 8796 lpfc_online(phba); 8797 8798 /* Clean up Advanced Error Reporting (AER) if needed */ 8799 if (phba->hba_flag & HBA_AER_ENABLED) 8800 pci_cleanup_aer_uncorrect_error_status(pdev); 8801 } 8802 8803 /** 8804 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8805 * @phba: pointer to lpfc hba data structure. 8806 * 8807 * returns the number of ELS/CT IOCBs to reserve 8808 **/ 8809 int 8810 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8811 { 8812 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8813 8814 if (phba->sli_rev == LPFC_SLI_REV4) { 8815 if (max_xri <= 100) 8816 return 10; 8817 else if (max_xri <= 256) 8818 return 25; 8819 else if (max_xri <= 512) 8820 return 50; 8821 else if (max_xri <= 1024) 8822 return 100; 8823 else 8824 return 150; 8825 } else 8826 return 0; 8827 } 8828 8829 /** 8830 * lpfc_write_firmware - attempt to write a firmware image to the port 8831 * @phba: pointer to lpfc hba data structure. 8832 * @fw: pointer to firmware image returned from request_firmware. 8833 * 8834 * returns the number of bytes written if write is successful. 8835 * returns a negative error value if there were errors. 8836 * returns 0 if firmware matches currently active firmware on port. 8837 **/ 8838 int 8839 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 8840 { 8841 char fwrev[32]; 8842 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 8843 struct list_head dma_buffer_list; 8844 int i, rc = 0; 8845 struct lpfc_dmabuf *dmabuf, *next; 8846 uint32_t offset = 0, temp_offset = 0; 8847 8848 INIT_LIST_HEAD(&dma_buffer_list); 8849 if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) || 8850 (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) || 8851 (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 8852 (image->size != fw->size)) { 8853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8854 "3022 Invalid FW image found. " 8855 "Magic:%d Type:%x ID:%x\n", 8856 image->magic_number, 8857 bf_get(lpfc_grp_hdr_file_type, image), 8858 bf_get(lpfc_grp_hdr_id, image)); 8859 return -EINVAL; 8860 } 8861 lpfc_decode_firmware_rev(phba, fwrev, 1); 8862 if (strncmp(fwrev, image->rev_name, strnlen(fwrev, 16))) { 8863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8864 "3023 Updating Firmware. Current Version:%s " 8865 "New Version:%s\n", 8866 fwrev, image->rev_name); 8867 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 8868 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 8869 GFP_KERNEL); 8870 if (!dmabuf) { 8871 rc = -ENOMEM; 8872 goto out; 8873 } 8874 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 8875 SLI4_PAGE_SIZE, 8876 &dmabuf->phys, 8877 GFP_KERNEL); 8878 if (!dmabuf->virt) { 8879 kfree(dmabuf); 8880 rc = -ENOMEM; 8881 goto out; 8882 } 8883 list_add_tail(&dmabuf->list, &dma_buffer_list); 8884 } 8885 while (offset < fw->size) { 8886 temp_offset = offset; 8887 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 8888 if (offset + SLI4_PAGE_SIZE > fw->size) { 8889 temp_offset += fw->size - offset; 8890 memcpy(dmabuf->virt, 8891 fw->data + temp_offset, 8892 fw->size - offset); 8893 break; 8894 } 8895 temp_offset += SLI4_PAGE_SIZE; 8896 memcpy(dmabuf->virt, fw->data + temp_offset, 8897 SLI4_PAGE_SIZE); 8898 } 8899 rc = lpfc_wr_object(phba, &dma_buffer_list, 8900 (fw->size - offset), &offset); 8901 if (rc) { 8902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8903 "3024 Firmware update failed. " 8904 "%d\n", rc); 8905 goto out; 8906 } 8907 } 8908 rc = offset; 8909 } 8910 out: 8911 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 8912 list_del(&dmabuf->list); 8913 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 8914 dmabuf->virt, dmabuf->phys); 8915 kfree(dmabuf); 8916 } 8917 return rc; 8918 } 8919 8920 /** 8921 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 8922 * @pdev: pointer to PCI device 8923 * @pid: pointer to PCI device identifier 8924 * 8925 * This routine is called from the kernel's PCI subsystem to device with 8926 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 8927 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8928 * information of the device and driver to see if the driver state that it 8929 * can support this kind of device. If the match is successful, the driver 8930 * core invokes this routine. If this routine determines it can claim the HBA, 8931 * it does all the initialization that it needs to do to handle the HBA 8932 * properly. 8933 * 8934 * Return code 8935 * 0 - driver can claim the device 8936 * negative value - driver can not claim the device 8937 **/ 8938 static int __devinit 8939 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 8940 { 8941 struct lpfc_hba *phba; 8942 struct lpfc_vport *vport = NULL; 8943 struct Scsi_Host *shost = NULL; 8944 int error; 8945 uint32_t cfg_mode, intr_mode; 8946 int mcnt; 8947 int adjusted_fcp_eq_count; 8948 int fcp_qidx; 8949 const struct firmware *fw; 8950 uint8_t file_name[16]; 8951 8952 /* Allocate memory for HBA structure */ 8953 phba = lpfc_hba_alloc(pdev); 8954 if (!phba) 8955 return -ENOMEM; 8956 8957 /* Perform generic PCI device enabling operation */ 8958 error = lpfc_enable_pci_dev(phba); 8959 if (error) { 8960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8961 "1409 Failed to enable pci device.\n"); 8962 goto out_free_phba; 8963 } 8964 8965 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 8966 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 8967 if (error) 8968 goto out_disable_pci_dev; 8969 8970 /* Set up SLI-4 specific device PCI memory space */ 8971 error = lpfc_sli4_pci_mem_setup(phba); 8972 if (error) { 8973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8974 "1410 Failed to set up pci memory space.\n"); 8975 goto out_disable_pci_dev; 8976 } 8977 8978 /* Set up phase-1 common device driver resources */ 8979 error = lpfc_setup_driver_resource_phase1(phba); 8980 if (error) { 8981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8982 "1411 Failed to set up driver resource.\n"); 8983 goto out_unset_pci_mem_s4; 8984 } 8985 8986 /* Set up SLI-4 Specific device driver resources */ 8987 error = lpfc_sli4_driver_resource_setup(phba); 8988 if (error) { 8989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8990 "1412 Failed to set up driver resource.\n"); 8991 goto out_unset_pci_mem_s4; 8992 } 8993 8994 /* Initialize and populate the iocb list per host */ 8995 8996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8997 "2821 initialize iocb list %d.\n", 8998 phba->cfg_iocb_cnt*1024); 8999 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9000 9001 if (error) { 9002 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9003 "1413 Failed to initialize iocb list.\n"); 9004 goto out_unset_driver_resource_s4; 9005 } 9006 9007 INIT_LIST_HEAD(&phba->active_rrq_list); 9008 9009 /* Set up common device driver resources */ 9010 error = lpfc_setup_driver_resource_phase2(phba); 9011 if (error) { 9012 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9013 "1414 Failed to set up driver resource.\n"); 9014 goto out_free_iocb_list; 9015 } 9016 9017 /* Create SCSI host to the physical port */ 9018 error = lpfc_create_shost(phba); 9019 if (error) { 9020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9021 "1415 Failed to create scsi host.\n"); 9022 goto out_unset_driver_resource; 9023 } 9024 9025 /* Configure sysfs attributes */ 9026 vport = phba->pport; 9027 error = lpfc_alloc_sysfs_attr(vport); 9028 if (error) { 9029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9030 "1416 Failed to allocate sysfs attr\n"); 9031 goto out_destroy_shost; 9032 } 9033 9034 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9035 /* Now, trying to enable interrupt and bring up the device */ 9036 cfg_mode = phba->cfg_use_msi; 9037 while (true) { 9038 /* Put device to a known state before enabling interrupt */ 9039 lpfc_stop_port(phba); 9040 /* Configure and enable interrupt */ 9041 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9042 if (intr_mode == LPFC_INTR_ERROR) { 9043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9044 "0426 Failed to enable interrupt.\n"); 9045 error = -ENODEV; 9046 goto out_free_sysfs_attr; 9047 } 9048 /* Default to single EQ for non-MSI-X */ 9049 if (phba->intr_type != MSIX) 9050 adjusted_fcp_eq_count = 0; 9051 else if (phba->sli4_hba.msix_vec_nr < 9052 phba->cfg_fcp_eq_count + 1) 9053 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9054 else 9055 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9056 /* Free unused EQs */ 9057 for (fcp_qidx = adjusted_fcp_eq_count; 9058 fcp_qidx < phba->cfg_fcp_eq_count; 9059 fcp_qidx++) { 9060 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 9061 /* do not delete the first fcp_cq */ 9062 if (fcp_qidx) 9063 lpfc_sli4_queue_free( 9064 phba->sli4_hba.fcp_cq[fcp_qidx]); 9065 } 9066 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9067 /* Set up SLI-4 HBA */ 9068 if (lpfc_sli4_hba_setup(phba)) { 9069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9070 "1421 Failed to set up hba\n"); 9071 error = -ENODEV; 9072 goto out_disable_intr; 9073 } 9074 9075 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9076 if (intr_mode != 0) 9077 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9078 LPFC_ACT_INTR_CNT); 9079 9080 /* Check active interrupts received only for MSI/MSI-X */ 9081 if (intr_mode == 0 || 9082 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9083 /* Log the current active interrupt mode */ 9084 phba->intr_mode = intr_mode; 9085 lpfc_log_intr_mode(phba, intr_mode); 9086 break; 9087 } 9088 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9089 "0451 Configure interrupt mode (%d) " 9090 "failed active interrupt test.\n", 9091 intr_mode); 9092 /* Unset the previous SLI-4 HBA setup. */ 9093 /* 9094 * TODO: Is this operation compatible with IF TYPE 2 9095 * devices? All port state is deleted and cleared. 9096 */ 9097 lpfc_sli4_unset_hba(phba); 9098 /* Try next level of interrupt mode */ 9099 cfg_mode = --intr_mode; 9100 } 9101 9102 /* Perform post initialization setup */ 9103 lpfc_post_init_setup(phba); 9104 9105 /* check for firmware upgrade or downgrade */ 9106 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9107 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9108 if (!error) { 9109 lpfc_write_firmware(phba, fw); 9110 release_firmware(fw); 9111 } 9112 9113 /* Check if there are static vports to be created. */ 9114 lpfc_create_static_vport(phba); 9115 9116 return 0; 9117 9118 out_disable_intr: 9119 lpfc_sli4_disable_intr(phba); 9120 out_free_sysfs_attr: 9121 lpfc_free_sysfs_attr(vport); 9122 out_destroy_shost: 9123 lpfc_destroy_shost(phba); 9124 out_unset_driver_resource: 9125 lpfc_unset_driver_resource_phase2(phba); 9126 out_free_iocb_list: 9127 lpfc_free_iocb_list(phba); 9128 out_unset_driver_resource_s4: 9129 lpfc_sli4_driver_resource_unset(phba); 9130 out_unset_pci_mem_s4: 9131 lpfc_sli4_pci_mem_unset(phba); 9132 out_disable_pci_dev: 9133 lpfc_disable_pci_dev(phba); 9134 if (shost) 9135 scsi_host_put(shost); 9136 out_free_phba: 9137 lpfc_hba_free(phba); 9138 return error; 9139 } 9140 9141 /** 9142 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9143 * @pdev: pointer to PCI device 9144 * 9145 * This routine is called from the kernel's PCI subsystem to device with 9146 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9147 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9148 * device to be removed from the PCI subsystem properly. 9149 **/ 9150 static void __devexit 9151 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9152 { 9153 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9154 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9155 struct lpfc_vport **vports; 9156 struct lpfc_hba *phba = vport->phba; 9157 int i; 9158 9159 /* Mark the device unloading flag */ 9160 spin_lock_irq(&phba->hbalock); 9161 vport->load_flag |= FC_UNLOADING; 9162 spin_unlock_irq(&phba->hbalock); 9163 9164 /* Free the HBA sysfs attributes */ 9165 lpfc_free_sysfs_attr(vport); 9166 9167 /* Release all the vports against this physical port */ 9168 vports = lpfc_create_vport_work_array(phba); 9169 if (vports != NULL) 9170 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 9171 fc_vport_terminate(vports[i]->fc_vport); 9172 lpfc_destroy_vport_work_array(phba, vports); 9173 9174 /* Remove FC host and then SCSI host with the physical port */ 9175 fc_remove_host(shost); 9176 scsi_remove_host(shost); 9177 9178 /* Perform cleanup on the physical port */ 9179 lpfc_cleanup(vport); 9180 9181 /* 9182 * Bring down the SLI Layer. This step disables all interrupts, 9183 * clears the rings, discards all mailbox commands, and resets 9184 * the HBA FCoE function. 9185 */ 9186 lpfc_debugfs_terminate(vport); 9187 lpfc_sli4_hba_unset(phba); 9188 9189 spin_lock_irq(&phba->hbalock); 9190 list_del_init(&vport->listentry); 9191 spin_unlock_irq(&phba->hbalock); 9192 9193 /* Perform scsi free before driver resource_unset since scsi 9194 * buffers are released to their corresponding pools here. 9195 */ 9196 lpfc_scsi_free(phba); 9197 lpfc_sli4_driver_resource_unset(phba); 9198 9199 /* Unmap adapter Control and Doorbell registers */ 9200 lpfc_sli4_pci_mem_unset(phba); 9201 9202 /* Release PCI resources and disable device's PCI function */ 9203 scsi_host_put(shost); 9204 lpfc_disable_pci_dev(phba); 9205 9206 /* Finally, free the driver's device data structure */ 9207 lpfc_hba_free(phba); 9208 9209 return; 9210 } 9211 9212 /** 9213 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9214 * @pdev: pointer to PCI device 9215 * @msg: power management message 9216 * 9217 * This routine is called from the kernel's PCI subsystem to support system 9218 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9219 * this method, it quiesces the device by stopping the driver's worker 9220 * thread for the device, turning off device's interrupt and DMA, and bring 9221 * the device offline. Note that as the driver implements the minimum PM 9222 * requirements to a power-aware driver's PM support for suspend/resume -- all 9223 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9224 * method call will be treated as SUSPEND and the driver will fully 9225 * reinitialize its device during resume() method call, the driver will set 9226 * device to PCI_D3hot state in PCI config space instead of setting it 9227 * according to the @msg provided by the PM. 9228 * 9229 * Return code 9230 * 0 - driver suspended the device 9231 * Error otherwise 9232 **/ 9233 static int 9234 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9235 { 9236 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9237 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9238 9239 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9240 "2843 PCI device Power Management suspend.\n"); 9241 9242 /* Bring down the device */ 9243 lpfc_offline_prep(phba); 9244 lpfc_offline(phba); 9245 kthread_stop(phba->worker_thread); 9246 9247 /* Disable interrupt from device */ 9248 lpfc_sli4_disable_intr(phba); 9249 9250 /* Save device state to PCI config space */ 9251 pci_save_state(pdev); 9252 pci_set_power_state(pdev, PCI_D3hot); 9253 9254 return 0; 9255 } 9256 9257 /** 9258 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9259 * @pdev: pointer to PCI device 9260 * 9261 * This routine is called from the kernel's PCI subsystem to support system 9262 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9263 * this method, it restores the device's PCI config space state and fully 9264 * reinitializes the device and brings it online. Note that as the driver 9265 * implements the minimum PM requirements to a power-aware driver's PM for 9266 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9267 * to the suspend() method call will be treated as SUSPEND and the driver 9268 * will fully reinitialize its device during resume() method call, the device 9269 * will be set to PCI_D0 directly in PCI config space before restoring the 9270 * state. 9271 * 9272 * Return code 9273 * 0 - driver suspended the device 9274 * Error otherwise 9275 **/ 9276 static int 9277 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9278 { 9279 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9280 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9281 uint32_t intr_mode; 9282 int error; 9283 9284 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9285 "0292 PCI device Power Management resume.\n"); 9286 9287 /* Restore device state from PCI config space */ 9288 pci_set_power_state(pdev, PCI_D0); 9289 pci_restore_state(pdev); 9290 9291 /* 9292 * As the new kernel behavior of pci_restore_state() API call clears 9293 * device saved_state flag, need to save the restored state again. 9294 */ 9295 pci_save_state(pdev); 9296 9297 if (pdev->is_busmaster) 9298 pci_set_master(pdev); 9299 9300 /* Startup the kernel thread for this host adapter. */ 9301 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9302 "lpfc_worker_%d", phba->brd_no); 9303 if (IS_ERR(phba->worker_thread)) { 9304 error = PTR_ERR(phba->worker_thread); 9305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9306 "0293 PM resume failed to start worker " 9307 "thread: error=x%x.\n", error); 9308 return error; 9309 } 9310 9311 /* Configure and enable interrupt */ 9312 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9313 if (intr_mode == LPFC_INTR_ERROR) { 9314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9315 "0294 PM resume Failed to enable interrupt\n"); 9316 return -EIO; 9317 } else 9318 phba->intr_mode = intr_mode; 9319 9320 /* Restart HBA and bring it online */ 9321 lpfc_sli_brdrestart(phba); 9322 lpfc_online(phba); 9323 9324 /* Log the current active interrupt mode */ 9325 lpfc_log_intr_mode(phba, phba->intr_mode); 9326 9327 return 0; 9328 } 9329 9330 /** 9331 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9332 * @phba: pointer to lpfc hba data structure. 9333 * 9334 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9335 * aborts all the outstanding SCSI I/Os to the pci device. 9336 **/ 9337 static void 9338 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9339 { 9340 struct lpfc_sli *psli = &phba->sli; 9341 struct lpfc_sli_ring *pring; 9342 9343 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9344 "2828 PCI channel I/O abort preparing for recovery\n"); 9345 /* 9346 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9347 * and let the SCSI mid-layer to retry them to recover. 9348 */ 9349 pring = &psli->ring[psli->fcp_ring]; 9350 lpfc_sli_abort_iocb_ring(phba, pring); 9351 } 9352 9353 /** 9354 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9355 * @phba: pointer to lpfc hba data structure. 9356 * 9357 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9358 * disables the device interrupt and pci device, and aborts the internal FCP 9359 * pending I/Os. 9360 **/ 9361 static void 9362 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9363 { 9364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9365 "2826 PCI channel disable preparing for reset\n"); 9366 9367 /* Block any management I/Os to the device */ 9368 lpfc_block_mgmt_io(phba); 9369 9370 /* Block all SCSI devices' I/Os on the host */ 9371 lpfc_scsi_dev_block(phba); 9372 9373 /* stop all timers */ 9374 lpfc_stop_hba_timers(phba); 9375 9376 /* Disable interrupt and pci device */ 9377 lpfc_sli4_disable_intr(phba); 9378 pci_disable_device(phba->pcidev); 9379 9380 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9381 lpfc_sli_flush_fcp_rings(phba); 9382 } 9383 9384 /** 9385 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9386 * @phba: pointer to lpfc hba data structure. 9387 * 9388 * This routine is called to prepare the SLI4 device for PCI slot permanently 9389 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9390 * pending I/Os. 9391 **/ 9392 static void 9393 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9394 { 9395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9396 "2827 PCI channel permanent disable for failure\n"); 9397 9398 /* Block all SCSI devices' I/Os on the host */ 9399 lpfc_scsi_dev_block(phba); 9400 9401 /* stop all timers */ 9402 lpfc_stop_hba_timers(phba); 9403 9404 /* Clean up all driver's outstanding SCSI I/Os */ 9405 lpfc_sli_flush_fcp_rings(phba); 9406 } 9407 9408 /** 9409 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9410 * @pdev: pointer to PCI device. 9411 * @state: the current PCI connection state. 9412 * 9413 * This routine is called from the PCI subsystem for error handling to device 9414 * with SLI-4 interface spec. This function is called by the PCI subsystem 9415 * after a PCI bus error affecting this device has been detected. When this 9416 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9417 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9418 * for the PCI subsystem to perform proper recovery as desired. 9419 * 9420 * Return codes 9421 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9422 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9423 **/ 9424 static pci_ers_result_t 9425 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9426 { 9427 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9428 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9429 9430 switch (state) { 9431 case pci_channel_io_normal: 9432 /* Non-fatal error, prepare for recovery */ 9433 lpfc_sli4_prep_dev_for_recover(phba); 9434 return PCI_ERS_RESULT_CAN_RECOVER; 9435 case pci_channel_io_frozen: 9436 /* Fatal error, prepare for slot reset */ 9437 lpfc_sli4_prep_dev_for_reset(phba); 9438 return PCI_ERS_RESULT_NEED_RESET; 9439 case pci_channel_io_perm_failure: 9440 /* Permanent failure, prepare for device down */ 9441 lpfc_sli4_prep_dev_for_perm_failure(phba); 9442 return PCI_ERS_RESULT_DISCONNECT; 9443 default: 9444 /* Unknown state, prepare and request slot reset */ 9445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9446 "2825 Unknown PCI error state: x%x\n", state); 9447 lpfc_sli4_prep_dev_for_reset(phba); 9448 return PCI_ERS_RESULT_NEED_RESET; 9449 } 9450 } 9451 9452 /** 9453 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9454 * @pdev: pointer to PCI device. 9455 * 9456 * This routine is called from the PCI subsystem for error handling to device 9457 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9458 * restart the PCI card from scratch, as if from a cold-boot. During the 9459 * PCI subsystem error recovery, after the driver returns 9460 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9461 * recovery and then call this routine before calling the .resume method to 9462 * recover the device. This function will initialize the HBA device, enable 9463 * the interrupt, but it will just put the HBA to offline state without 9464 * passing any I/O traffic. 9465 * 9466 * Return codes 9467 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9468 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9469 */ 9470 static pci_ers_result_t 9471 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9472 { 9473 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9474 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9475 struct lpfc_sli *psli = &phba->sli; 9476 uint32_t intr_mode; 9477 9478 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9479 if (pci_enable_device_mem(pdev)) { 9480 printk(KERN_ERR "lpfc: Cannot re-enable " 9481 "PCI device after reset.\n"); 9482 return PCI_ERS_RESULT_DISCONNECT; 9483 } 9484 9485 pci_restore_state(pdev); 9486 if (pdev->is_busmaster) 9487 pci_set_master(pdev); 9488 9489 spin_lock_irq(&phba->hbalock); 9490 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9491 spin_unlock_irq(&phba->hbalock); 9492 9493 /* Configure and enable interrupt */ 9494 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9495 if (intr_mode == LPFC_INTR_ERROR) { 9496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9497 "2824 Cannot re-enable interrupt after " 9498 "slot reset.\n"); 9499 return PCI_ERS_RESULT_DISCONNECT; 9500 } else 9501 phba->intr_mode = intr_mode; 9502 9503 /* Log the current active interrupt mode */ 9504 lpfc_log_intr_mode(phba, phba->intr_mode); 9505 9506 return PCI_ERS_RESULT_RECOVERED; 9507 } 9508 9509 /** 9510 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9511 * @pdev: pointer to PCI device 9512 * 9513 * This routine is called from the PCI subsystem for error handling to device 9514 * with SLI-4 interface spec. It is called when kernel error recovery tells 9515 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9516 * error recovery. After this call, traffic can start to flow from this device 9517 * again. 9518 **/ 9519 static void 9520 lpfc_io_resume_s4(struct pci_dev *pdev) 9521 { 9522 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9523 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9524 9525 /* 9526 * In case of slot reset, as function reset is performed through 9527 * mailbox command which needs DMA to be enabled, this operation 9528 * has to be moved to the io resume phase. Taking device offline 9529 * will perform the necessary cleanup. 9530 */ 9531 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9532 /* Perform device reset */ 9533 lpfc_offline_prep(phba); 9534 lpfc_offline(phba); 9535 lpfc_sli_brdrestart(phba); 9536 /* Bring the device back online */ 9537 lpfc_online(phba); 9538 } 9539 9540 /* Clean up Advanced Error Reporting (AER) if needed */ 9541 if (phba->hba_flag & HBA_AER_ENABLED) 9542 pci_cleanup_aer_uncorrect_error_status(pdev); 9543 } 9544 9545 /** 9546 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9547 * @pdev: pointer to PCI device 9548 * @pid: pointer to PCI device identifier 9549 * 9550 * This routine is to be registered to the kernel's PCI subsystem. When an 9551 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9552 * at PCI device-specific information of the device and driver to see if the 9553 * driver state that it can support this kind of device. If the match is 9554 * successful, the driver core invokes this routine. This routine dispatches 9555 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9556 * do all the initialization that it needs to do to handle the HBA device 9557 * properly. 9558 * 9559 * Return code 9560 * 0 - driver can claim the device 9561 * negative value - driver can not claim the device 9562 **/ 9563 static int __devinit 9564 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9565 { 9566 int rc; 9567 struct lpfc_sli_intf intf; 9568 9569 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9570 return -ENODEV; 9571 9572 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9573 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9574 rc = lpfc_pci_probe_one_s4(pdev, pid); 9575 else 9576 rc = lpfc_pci_probe_one_s3(pdev, pid); 9577 9578 return rc; 9579 } 9580 9581 /** 9582 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9583 * @pdev: pointer to PCI device 9584 * 9585 * This routine is to be registered to the kernel's PCI subsystem. When an 9586 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9587 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9588 * remove routine, which will perform all the necessary cleanup for the 9589 * device to be removed from the PCI subsystem properly. 9590 **/ 9591 static void __devexit 9592 lpfc_pci_remove_one(struct pci_dev *pdev) 9593 { 9594 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9595 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9596 9597 switch (phba->pci_dev_grp) { 9598 case LPFC_PCI_DEV_LP: 9599 lpfc_pci_remove_one_s3(pdev); 9600 break; 9601 case LPFC_PCI_DEV_OC: 9602 lpfc_pci_remove_one_s4(pdev); 9603 break; 9604 default: 9605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9606 "1424 Invalid PCI device group: 0x%x\n", 9607 phba->pci_dev_grp); 9608 break; 9609 } 9610 return; 9611 } 9612 9613 /** 9614 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9615 * @pdev: pointer to PCI device 9616 * @msg: power management message 9617 * 9618 * This routine is to be registered to the kernel's PCI subsystem to support 9619 * system Power Management (PM). When PM invokes this method, it dispatches 9620 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9621 * suspend the device. 9622 * 9623 * Return code 9624 * 0 - driver suspended the device 9625 * Error otherwise 9626 **/ 9627 static int 9628 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9629 { 9630 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9631 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9632 int rc = -ENODEV; 9633 9634 switch (phba->pci_dev_grp) { 9635 case LPFC_PCI_DEV_LP: 9636 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9637 break; 9638 case LPFC_PCI_DEV_OC: 9639 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9640 break; 9641 default: 9642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9643 "1425 Invalid PCI device group: 0x%x\n", 9644 phba->pci_dev_grp); 9645 break; 9646 } 9647 return rc; 9648 } 9649 9650 /** 9651 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9652 * @pdev: pointer to PCI device 9653 * 9654 * This routine is to be registered to the kernel's PCI subsystem to support 9655 * system Power Management (PM). When PM invokes this method, it dispatches 9656 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9657 * resume the device. 9658 * 9659 * Return code 9660 * 0 - driver suspended the device 9661 * Error otherwise 9662 **/ 9663 static int 9664 lpfc_pci_resume_one(struct pci_dev *pdev) 9665 { 9666 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9667 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9668 int rc = -ENODEV; 9669 9670 switch (phba->pci_dev_grp) { 9671 case LPFC_PCI_DEV_LP: 9672 rc = lpfc_pci_resume_one_s3(pdev); 9673 break; 9674 case LPFC_PCI_DEV_OC: 9675 rc = lpfc_pci_resume_one_s4(pdev); 9676 break; 9677 default: 9678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9679 "1426 Invalid PCI device group: 0x%x\n", 9680 phba->pci_dev_grp); 9681 break; 9682 } 9683 return rc; 9684 } 9685 9686 /** 9687 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9688 * @pdev: pointer to PCI device. 9689 * @state: the current PCI connection state. 9690 * 9691 * This routine is registered to the PCI subsystem for error handling. This 9692 * function is called by the PCI subsystem after a PCI bus error affecting 9693 * this device has been detected. When this routine is invoked, it dispatches 9694 * the action to the proper SLI-3 or SLI-4 device error detected handling 9695 * routine, which will perform the proper error detected operation. 9696 * 9697 * Return codes 9698 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9699 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9700 **/ 9701 static pci_ers_result_t 9702 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9703 { 9704 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9705 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9706 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9707 9708 switch (phba->pci_dev_grp) { 9709 case LPFC_PCI_DEV_LP: 9710 rc = lpfc_io_error_detected_s3(pdev, state); 9711 break; 9712 case LPFC_PCI_DEV_OC: 9713 rc = lpfc_io_error_detected_s4(pdev, state); 9714 break; 9715 default: 9716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9717 "1427 Invalid PCI device group: 0x%x\n", 9718 phba->pci_dev_grp); 9719 break; 9720 } 9721 return rc; 9722 } 9723 9724 /** 9725 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9726 * @pdev: pointer to PCI device. 9727 * 9728 * This routine is registered to the PCI subsystem for error handling. This 9729 * function is called after PCI bus has been reset to restart the PCI card 9730 * from scratch, as if from a cold-boot. When this routine is invoked, it 9731 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 9732 * routine, which will perform the proper device reset. 9733 * 9734 * Return codes 9735 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9736 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9737 **/ 9738 static pci_ers_result_t 9739 lpfc_io_slot_reset(struct pci_dev *pdev) 9740 { 9741 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9742 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9743 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9744 9745 switch (phba->pci_dev_grp) { 9746 case LPFC_PCI_DEV_LP: 9747 rc = lpfc_io_slot_reset_s3(pdev); 9748 break; 9749 case LPFC_PCI_DEV_OC: 9750 rc = lpfc_io_slot_reset_s4(pdev); 9751 break; 9752 default: 9753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9754 "1428 Invalid PCI device group: 0x%x\n", 9755 phba->pci_dev_grp); 9756 break; 9757 } 9758 return rc; 9759 } 9760 9761 /** 9762 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 9763 * @pdev: pointer to PCI device 9764 * 9765 * This routine is registered to the PCI subsystem for error handling. It 9766 * is called when kernel error recovery tells the lpfc driver that it is 9767 * OK to resume normal PCI operation after PCI bus error recovery. When 9768 * this routine is invoked, it dispatches the action to the proper SLI-3 9769 * or SLI-4 device io_resume routine, which will resume the device operation. 9770 **/ 9771 static void 9772 lpfc_io_resume(struct pci_dev *pdev) 9773 { 9774 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9775 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9776 9777 switch (phba->pci_dev_grp) { 9778 case LPFC_PCI_DEV_LP: 9779 lpfc_io_resume_s3(pdev); 9780 break; 9781 case LPFC_PCI_DEV_OC: 9782 lpfc_io_resume_s4(pdev); 9783 break; 9784 default: 9785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9786 "1429 Invalid PCI device group: 0x%x\n", 9787 phba->pci_dev_grp); 9788 break; 9789 } 9790 return; 9791 } 9792 9793 static struct pci_device_id lpfc_id_table[] = { 9794 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 9795 PCI_ANY_ID, PCI_ANY_ID, }, 9796 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 9797 PCI_ANY_ID, PCI_ANY_ID, }, 9798 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 9799 PCI_ANY_ID, PCI_ANY_ID, }, 9800 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 9801 PCI_ANY_ID, PCI_ANY_ID, }, 9802 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 9803 PCI_ANY_ID, PCI_ANY_ID, }, 9804 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 9805 PCI_ANY_ID, PCI_ANY_ID, }, 9806 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9807 PCI_ANY_ID, PCI_ANY_ID, }, 9808 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9809 PCI_ANY_ID, PCI_ANY_ID, }, 9810 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9811 PCI_ANY_ID, PCI_ANY_ID, }, 9812 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9813 PCI_ANY_ID, PCI_ANY_ID, }, 9814 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9815 PCI_ANY_ID, PCI_ANY_ID, }, 9816 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9817 PCI_ANY_ID, PCI_ANY_ID, }, 9818 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9819 PCI_ANY_ID, PCI_ANY_ID, }, 9820 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9821 PCI_ANY_ID, PCI_ANY_ID, }, 9822 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9823 PCI_ANY_ID, PCI_ANY_ID, }, 9824 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9825 PCI_ANY_ID, PCI_ANY_ID, }, 9826 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9827 PCI_ANY_ID, PCI_ANY_ID, }, 9828 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9829 PCI_ANY_ID, PCI_ANY_ID, }, 9830 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9831 PCI_ANY_ID, PCI_ANY_ID, }, 9832 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9833 PCI_ANY_ID, PCI_ANY_ID, }, 9834 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9835 PCI_ANY_ID, PCI_ANY_ID, }, 9836 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9837 PCI_ANY_ID, PCI_ANY_ID, }, 9838 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9839 PCI_ANY_ID, PCI_ANY_ID, }, 9840 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9841 PCI_ANY_ID, PCI_ANY_ID, }, 9842 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9843 PCI_ANY_ID, PCI_ANY_ID, }, 9844 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9845 PCI_ANY_ID, PCI_ANY_ID, }, 9846 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9847 PCI_ANY_ID, PCI_ANY_ID, }, 9848 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9849 PCI_ANY_ID, PCI_ANY_ID, }, 9850 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9851 PCI_ANY_ID, PCI_ANY_ID, }, 9852 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9853 PCI_ANY_ID, PCI_ANY_ID, }, 9854 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9855 PCI_ANY_ID, PCI_ANY_ID, }, 9856 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9857 PCI_ANY_ID, PCI_ANY_ID, }, 9858 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9859 PCI_ANY_ID, PCI_ANY_ID, }, 9860 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9861 PCI_ANY_ID, PCI_ANY_ID, }, 9862 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9863 PCI_ANY_ID, PCI_ANY_ID, }, 9864 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9865 PCI_ANY_ID, PCI_ANY_ID, }, 9866 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9867 PCI_ANY_ID, PCI_ANY_ID, }, 9868 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9869 PCI_ANY_ID, PCI_ANY_ID, }, 9870 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9871 PCI_ANY_ID, PCI_ANY_ID, }, 9872 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9873 PCI_ANY_ID, PCI_ANY_ID, }, 9874 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9875 PCI_ANY_ID, PCI_ANY_ID, }, 9876 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9877 PCI_ANY_ID, PCI_ANY_ID, }, 9878 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9879 PCI_ANY_ID, PCI_ANY_ID, }, 9880 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 9881 PCI_ANY_ID, PCI_ANY_ID, }, 9882 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 9883 PCI_ANY_ID, PCI_ANY_ID, }, 9884 { 0 } 9885 }; 9886 9887 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9888 9889 static struct pci_error_handlers lpfc_err_handler = { 9890 .error_detected = lpfc_io_error_detected, 9891 .slot_reset = lpfc_io_slot_reset, 9892 .resume = lpfc_io_resume, 9893 }; 9894 9895 static struct pci_driver lpfc_driver = { 9896 .name = LPFC_DRIVER_NAME, 9897 .id_table = lpfc_id_table, 9898 .probe = lpfc_pci_probe_one, 9899 .remove = __devexit_p(lpfc_pci_remove_one), 9900 .suspend = lpfc_pci_suspend_one, 9901 .resume = lpfc_pci_resume_one, 9902 .err_handler = &lpfc_err_handler, 9903 }; 9904 9905 /** 9906 * lpfc_init - lpfc module initialization routine 9907 * 9908 * This routine is to be invoked when the lpfc module is loaded into the 9909 * kernel. The special kernel macro module_init() is used to indicate the 9910 * role of this routine to the kernel as lpfc module entry point. 9911 * 9912 * Return codes 9913 * 0 - successful 9914 * -ENOMEM - FC attach transport failed 9915 * all others - failed 9916 */ 9917 static int __init 9918 lpfc_init(void) 9919 { 9920 int error = 0; 9921 9922 printk(LPFC_MODULE_DESC "\n"); 9923 printk(LPFC_COPYRIGHT "\n"); 9924 9925 if (lpfc_enable_npiv) { 9926 lpfc_transport_functions.vport_create = lpfc_vport_create; 9927 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 9928 } 9929 lpfc_transport_template = 9930 fc_attach_transport(&lpfc_transport_functions); 9931 if (lpfc_transport_template == NULL) 9932 return -ENOMEM; 9933 if (lpfc_enable_npiv) { 9934 lpfc_vport_transport_template = 9935 fc_attach_transport(&lpfc_vport_transport_functions); 9936 if (lpfc_vport_transport_template == NULL) { 9937 fc_release_transport(lpfc_transport_template); 9938 return -ENOMEM; 9939 } 9940 } 9941 error = pci_register_driver(&lpfc_driver); 9942 if (error) { 9943 fc_release_transport(lpfc_transport_template); 9944 if (lpfc_enable_npiv) 9945 fc_release_transport(lpfc_vport_transport_template); 9946 } 9947 9948 return error; 9949 } 9950 9951 /** 9952 * lpfc_exit - lpfc module removal routine 9953 * 9954 * This routine is invoked when the lpfc module is removed from the kernel. 9955 * The special kernel macro module_exit() is used to indicate the role of 9956 * this routine to the kernel as lpfc module exit point. 9957 */ 9958 static void __exit 9959 lpfc_exit(void) 9960 { 9961 pci_unregister_driver(&lpfc_driver); 9962 fc_release_transport(lpfc_transport_template); 9963 if (lpfc_enable_npiv) 9964 fc_release_transport(lpfc_vport_transport_template); 9965 if (_dump_buf_data) { 9966 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 9967 "_dump_buf_data at 0x%p\n", 9968 (1L << _dump_buf_data_order), _dump_buf_data); 9969 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 9970 } 9971 9972 if (_dump_buf_dif) { 9973 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 9974 "_dump_buf_dif at 0x%p\n", 9975 (1L << _dump_buf_dif_order), _dump_buf_dif); 9976 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 9977 } 9978 } 9979 9980 module_init(lpfc_init); 9981 module_exit(lpfc_exit); 9982 MODULE_LICENSE("GPL"); 9983 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 9984 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 9985 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 9986