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_verify(struct lpfc_hba *); 62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 63 static int lpfc_setup_endian_order(struct lpfc_hba *); 64 static int lpfc_sli4_read_config(struct lpfc_hba *); 65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 66 static void lpfc_free_sgl_list(struct lpfc_hba *); 67 static int lpfc_init_sgl_list(struct lpfc_hba *); 68 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 69 static void lpfc_free_active_sgl(struct lpfc_hba *); 70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 75 76 static struct scsi_transport_template *lpfc_transport_template = NULL; 77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 78 static DEFINE_IDR(lpfc_hba_index); 79 80 /** 81 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 82 * @phba: pointer to lpfc hba data structure. 83 * 84 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 85 * mailbox command. It retrieves the revision information from the HBA and 86 * collects the Vital Product Data (VPD) about the HBA for preparing the 87 * configuration of the HBA. 88 * 89 * Return codes: 90 * 0 - success. 91 * -ERESTART - requests the SLI layer to reset the HBA and try again. 92 * Any other value - indicates an error. 93 **/ 94 int 95 lpfc_config_port_prep(struct lpfc_hba *phba) 96 { 97 lpfc_vpd_t *vp = &phba->vpd; 98 int i = 0, rc; 99 LPFC_MBOXQ_t *pmb; 100 MAILBOX_t *mb; 101 char *lpfc_vpd_data = NULL; 102 uint16_t offset = 0; 103 static char licensed[56] = 104 "key unlock for use with gnu public licensed code only\0"; 105 static int init_key = 1; 106 107 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 108 if (!pmb) { 109 phba->link_state = LPFC_HBA_ERROR; 110 return -ENOMEM; 111 } 112 113 mb = &pmb->u.mb; 114 phba->link_state = LPFC_INIT_MBX_CMDS; 115 116 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 117 if (init_key) { 118 uint32_t *ptext = (uint32_t *) licensed; 119 120 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 121 *ptext = cpu_to_be32(*ptext); 122 init_key = 0; 123 } 124 125 lpfc_read_nv(phba, pmb); 126 memset((char*)mb->un.varRDnvp.rsvd3, 0, 127 sizeof (mb->un.varRDnvp.rsvd3)); 128 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 129 sizeof (licensed)); 130 131 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 132 133 if (rc != MBX_SUCCESS) { 134 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 135 "0324 Config Port initialization " 136 "error, mbxCmd x%x READ_NVPARM, " 137 "mbxStatus x%x\n", 138 mb->mbxCommand, mb->mbxStatus); 139 mempool_free(pmb, phba->mbox_mem_pool); 140 return -ERESTART; 141 } 142 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 143 sizeof(phba->wwnn)); 144 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 145 sizeof(phba->wwpn)); 146 } 147 148 phba->sli3_options = 0x0; 149 150 /* Setup and issue mailbox READ REV command */ 151 lpfc_read_rev(phba, pmb); 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 if (rc != MBX_SUCCESS) { 154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 155 "0439 Adapter failed to init, mbxCmd x%x " 156 "READ_REV, mbxStatus x%x\n", 157 mb->mbxCommand, mb->mbxStatus); 158 mempool_free( pmb, phba->mbox_mem_pool); 159 return -ERESTART; 160 } 161 162 163 /* 164 * The value of rr must be 1 since the driver set the cv field to 1. 165 * This setting requires the FW to set all revision fields. 166 */ 167 if (mb->un.varRdRev.rr == 0) { 168 vp->rev.rBit = 0; 169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 170 "0440 Adapter failed to init, READ_REV has " 171 "missing revision information.\n"); 172 mempool_free(pmb, phba->mbox_mem_pool); 173 return -ERESTART; 174 } 175 176 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 177 mempool_free(pmb, phba->mbox_mem_pool); 178 return -EINVAL; 179 } 180 181 /* Save information as VPD data */ 182 vp->rev.rBit = 1; 183 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 184 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 185 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 186 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 187 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 188 vp->rev.biuRev = mb->un.varRdRev.biuRev; 189 vp->rev.smRev = mb->un.varRdRev.smRev; 190 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 191 vp->rev.endecRev = mb->un.varRdRev.endecRev; 192 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 193 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 194 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 195 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 196 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 197 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 198 199 /* If the sli feature level is less then 9, we must 200 * tear down all RPIs and VPIs on link down if NPIV 201 * is enabled. 202 */ 203 if (vp->rev.feaLevelHigh < 9) 204 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 205 206 if (lpfc_is_LC_HBA(phba->pcidev->device)) 207 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 208 sizeof (phba->RandomData)); 209 210 /* Get adapter VPD information */ 211 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 212 if (!lpfc_vpd_data) 213 goto out_free_mbox; 214 do { 215 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 216 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 217 218 if (rc != MBX_SUCCESS) { 219 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 220 "0441 VPD not present on adapter, " 221 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 222 mb->mbxCommand, mb->mbxStatus); 223 mb->un.varDmp.word_cnt = 0; 224 } 225 /* dump mem may return a zero when finished or we got a 226 * mailbox error, either way we are done. 227 */ 228 if (mb->un.varDmp.word_cnt == 0) 229 break; 230 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 231 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 232 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 233 lpfc_vpd_data + offset, 234 mb->un.varDmp.word_cnt); 235 offset += mb->un.varDmp.word_cnt; 236 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 237 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 238 239 kfree(lpfc_vpd_data); 240 out_free_mbox: 241 mempool_free(pmb, phba->mbox_mem_pool); 242 return 0; 243 } 244 245 /** 246 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 247 * @phba: pointer to lpfc hba data structure. 248 * @pmboxq: pointer to the driver internal queue element for mailbox command. 249 * 250 * This is the completion handler for driver's configuring asynchronous event 251 * mailbox command to the device. If the mailbox command returns successfully, 252 * it will set internal async event support flag to 1; otherwise, it will 253 * set internal async event support flag to 0. 254 **/ 255 static void 256 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 257 { 258 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 259 phba->temp_sensor_support = 1; 260 else 261 phba->temp_sensor_support = 0; 262 mempool_free(pmboxq, phba->mbox_mem_pool); 263 return; 264 } 265 266 /** 267 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 268 * @phba: pointer to lpfc hba data structure. 269 * @pmboxq: pointer to the driver internal queue element for mailbox command. 270 * 271 * This is the completion handler for dump mailbox command for getting 272 * wake up parameters. When this command complete, the response contain 273 * Option rom version of the HBA. This function translate the version number 274 * into a human readable string and store it in OptionROMVersion. 275 **/ 276 static void 277 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 278 { 279 struct prog_id *prg; 280 uint32_t prog_id_word; 281 char dist = ' '; 282 /* character array used for decoding dist type. */ 283 char dist_char[] = "nabx"; 284 285 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 286 mempool_free(pmboxq, phba->mbox_mem_pool); 287 return; 288 } 289 290 prg = (struct prog_id *) &prog_id_word; 291 292 /* word 7 contain option rom version */ 293 prog_id_word = pmboxq->u.mb.un.varWords[7]; 294 295 /* Decode the Option rom version word to a readable string */ 296 if (prg->dist < 4) 297 dist = dist_char[prg->dist]; 298 299 if ((prg->dist == 3) && (prg->num == 0)) 300 sprintf(phba->OptionROMVersion, "%d.%d%d", 301 prg->ver, prg->rev, prg->lev); 302 else 303 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 304 prg->ver, prg->rev, prg->lev, 305 dist, prg->num); 306 mempool_free(pmboxq, phba->mbox_mem_pool); 307 return; 308 } 309 310 /** 311 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 312 * cfg_soft_wwnn, cfg_soft_wwpn 313 * @vport: pointer to lpfc vport data structure. 314 * 315 * 316 * Return codes 317 * None. 318 **/ 319 void 320 lpfc_update_vport_wwn(struct lpfc_vport *vport) 321 { 322 /* If the soft name exists then update it using the service params */ 323 if (vport->phba->cfg_soft_wwnn) 324 u64_to_wwn(vport->phba->cfg_soft_wwnn, 325 vport->fc_sparam.nodeName.u.wwn); 326 if (vport->phba->cfg_soft_wwpn) 327 u64_to_wwn(vport->phba->cfg_soft_wwpn, 328 vport->fc_sparam.portName.u.wwn); 329 330 /* 331 * If the name is empty or there exists a soft name 332 * then copy the service params name, otherwise use the fc name 333 */ 334 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 335 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 336 sizeof(struct lpfc_name)); 337 else 338 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 339 sizeof(struct lpfc_name)); 340 341 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 342 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 343 sizeof(struct lpfc_name)); 344 else 345 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 346 sizeof(struct lpfc_name)); 347 } 348 349 /** 350 * lpfc_config_port_post - Perform lpfc initialization after config port 351 * @phba: pointer to lpfc hba data structure. 352 * 353 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 354 * command call. It performs all internal resource and state setups on the 355 * port: post IOCB buffers, enable appropriate host interrupt attentions, 356 * ELS ring timers, etc. 357 * 358 * Return codes 359 * 0 - success. 360 * Any other value - error. 361 **/ 362 int 363 lpfc_config_port_post(struct lpfc_hba *phba) 364 { 365 struct lpfc_vport *vport = phba->pport; 366 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 367 LPFC_MBOXQ_t *pmb; 368 MAILBOX_t *mb; 369 struct lpfc_dmabuf *mp; 370 struct lpfc_sli *psli = &phba->sli; 371 uint32_t status, timeout; 372 int i, j; 373 int rc; 374 375 spin_lock_irq(&phba->hbalock); 376 /* 377 * If the Config port completed correctly the HBA is not 378 * over heated any more. 379 */ 380 if (phba->over_temp_state == HBA_OVER_TEMP) 381 phba->over_temp_state = HBA_NORMAL_TEMP; 382 spin_unlock_irq(&phba->hbalock); 383 384 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 385 if (!pmb) { 386 phba->link_state = LPFC_HBA_ERROR; 387 return -ENOMEM; 388 } 389 mb = &pmb->u.mb; 390 391 /* Get login parameters for NID. */ 392 rc = lpfc_read_sparam(phba, pmb, 0); 393 if (rc) { 394 mempool_free(pmb, phba->mbox_mem_pool); 395 return -ENOMEM; 396 } 397 398 pmb->vport = vport; 399 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 401 "0448 Adapter failed init, mbxCmd x%x " 402 "READ_SPARM mbxStatus x%x\n", 403 mb->mbxCommand, mb->mbxStatus); 404 phba->link_state = LPFC_HBA_ERROR; 405 mp = (struct lpfc_dmabuf *) pmb->context1; 406 mempool_free(pmb, phba->mbox_mem_pool); 407 lpfc_mbuf_free(phba, mp->virt, mp->phys); 408 kfree(mp); 409 return -EIO; 410 } 411 412 mp = (struct lpfc_dmabuf *) pmb->context1; 413 414 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 415 lpfc_mbuf_free(phba, mp->virt, mp->phys); 416 kfree(mp); 417 pmb->context1 = NULL; 418 lpfc_update_vport_wwn(vport); 419 420 /* Update the fc_host data structures with new wwn. */ 421 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 422 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 423 fc_host_max_npiv_vports(shost) = phba->max_vpi; 424 425 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 426 /* This should be consolidated into parse_vpd ? - mr */ 427 if (phba->SerialNumber[0] == 0) { 428 uint8_t *outptr; 429 430 outptr = &vport->fc_nodename.u.s.IEEE[0]; 431 for (i = 0; i < 12; i++) { 432 status = *outptr++; 433 j = ((status & 0xf0) >> 4); 434 if (j <= 9) 435 phba->SerialNumber[i] = 436 (char)((uint8_t) 0x30 + (uint8_t) j); 437 else 438 phba->SerialNumber[i] = 439 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 440 i++; 441 j = (status & 0xf); 442 if (j <= 9) 443 phba->SerialNumber[i] = 444 (char)((uint8_t) 0x30 + (uint8_t) j); 445 else 446 phba->SerialNumber[i] = 447 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 448 } 449 } 450 451 lpfc_read_config(phba, pmb); 452 pmb->vport = vport; 453 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 455 "0453 Adapter failed to init, mbxCmd x%x " 456 "READ_CONFIG, mbxStatus x%x\n", 457 mb->mbxCommand, mb->mbxStatus); 458 phba->link_state = LPFC_HBA_ERROR; 459 mempool_free( pmb, phba->mbox_mem_pool); 460 return -EIO; 461 } 462 463 /* Check if the port is disabled */ 464 lpfc_sli_read_link_ste(phba); 465 466 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 467 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 468 phba->cfg_hba_queue_depth = 469 (mb->un.varRdConfig.max_xri + 1) - 470 lpfc_sli4_get_els_iocb_cnt(phba); 471 472 phba->lmt = mb->un.varRdConfig.lmt; 473 474 /* Get the default values for Model Name and Description */ 475 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 476 477 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G) 478 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) 479 && !(phba->lmt & LMT_1Gb)) 480 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) 481 && !(phba->lmt & LMT_2Gb)) 482 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) 483 && !(phba->lmt & LMT_4Gb)) 484 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) 485 && !(phba->lmt & LMT_8Gb)) 486 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) 487 && !(phba->lmt & LMT_10Gb)) 488 || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) 489 && !(phba->lmt & LMT_16Gb))) { 490 /* Reset link speed to auto */ 491 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 492 "1302 Invalid speed for this board: " 493 "Reset link speed to auto: x%x\n", 494 phba->cfg_link_speed); 495 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 496 } 497 498 phba->link_state = LPFC_LINK_DOWN; 499 500 /* Only process IOCBs on ELS ring till hba_state is READY */ 501 if (psli->ring[psli->extra_ring].cmdringaddr) 502 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 503 if (psli->ring[psli->fcp_ring].cmdringaddr) 504 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 505 if (psli->ring[psli->next_ring].cmdringaddr) 506 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 507 508 /* Post receive buffers for desired rings */ 509 if (phba->sli_rev != 3) 510 lpfc_post_rcv_buf(phba); 511 512 /* 513 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 514 */ 515 if (phba->intr_type == MSIX) { 516 rc = lpfc_config_msi(phba, pmb); 517 if (rc) { 518 mempool_free(pmb, phba->mbox_mem_pool); 519 return -EIO; 520 } 521 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 522 if (rc != MBX_SUCCESS) { 523 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 524 "0352 Config MSI mailbox command " 525 "failed, mbxCmd x%x, mbxStatus x%x\n", 526 pmb->u.mb.mbxCommand, 527 pmb->u.mb.mbxStatus); 528 mempool_free(pmb, phba->mbox_mem_pool); 529 return -EIO; 530 } 531 } 532 533 spin_lock_irq(&phba->hbalock); 534 /* Initialize ERATT handling flag */ 535 phba->hba_flag &= ~HBA_ERATT_HANDLED; 536 537 /* Enable appropriate host interrupts */ 538 if (lpfc_readl(phba->HCregaddr, &status)) { 539 spin_unlock_irq(&phba->hbalock); 540 return -EIO; 541 } 542 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 543 if (psli->num_rings > 0) 544 status |= HC_R0INT_ENA; 545 if (psli->num_rings > 1) 546 status |= HC_R1INT_ENA; 547 if (psli->num_rings > 2) 548 status |= HC_R2INT_ENA; 549 if (psli->num_rings > 3) 550 status |= HC_R3INT_ENA; 551 552 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 553 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 554 status &= ~(HC_R0INT_ENA); 555 556 writel(status, phba->HCregaddr); 557 readl(phba->HCregaddr); /* flush */ 558 spin_unlock_irq(&phba->hbalock); 559 560 /* Set up ring-0 (ELS) timer */ 561 timeout = phba->fc_ratov * 2; 562 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 563 /* Set up heart beat (HB) timer */ 564 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 565 phba->hb_outstanding = 0; 566 phba->last_completion_time = jiffies; 567 /* Set up error attention (ERATT) polling timer */ 568 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 569 570 if (phba->hba_flag & LINK_DISABLED) { 571 lpfc_printf_log(phba, 572 KERN_ERR, LOG_INIT, 573 "2598 Adapter Link is disabled.\n"); 574 lpfc_down_link(phba, pmb); 575 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 576 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 577 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 578 lpfc_printf_log(phba, 579 KERN_ERR, LOG_INIT, 580 "2599 Adapter failed to issue DOWN_LINK" 581 " mbox command rc 0x%x\n", rc); 582 583 mempool_free(pmb, phba->mbox_mem_pool); 584 return -EIO; 585 } 586 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 587 lpfc_init_link(phba, pmb, phba->cfg_topology, 588 phba->cfg_link_speed); 589 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 590 lpfc_set_loopback_flag(phba); 591 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 592 if (rc != MBX_SUCCESS) { 593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 594 "0454 Adapter failed to init, mbxCmd x%x " 595 "INIT_LINK, mbxStatus x%x\n", 596 mb->mbxCommand, mb->mbxStatus); 597 598 /* Clear all interrupt enable conditions */ 599 writel(0, phba->HCregaddr); 600 readl(phba->HCregaddr); /* flush */ 601 /* Clear all pending interrupts */ 602 writel(0xffffffff, phba->HAregaddr); 603 readl(phba->HAregaddr); /* flush */ 604 phba->link_state = LPFC_HBA_ERROR; 605 if (rc != MBX_BUSY) 606 mempool_free(pmb, phba->mbox_mem_pool); 607 return -EIO; 608 } 609 } 610 /* MBOX buffer will be freed in mbox compl */ 611 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 612 if (!pmb) { 613 phba->link_state = LPFC_HBA_ERROR; 614 return -ENOMEM; 615 } 616 617 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 618 pmb->mbox_cmpl = lpfc_config_async_cmpl; 619 pmb->vport = phba->pport; 620 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 621 622 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 623 lpfc_printf_log(phba, 624 KERN_ERR, 625 LOG_INIT, 626 "0456 Adapter failed to issue " 627 "ASYNCEVT_ENABLE mbox status x%x\n", 628 rc); 629 mempool_free(pmb, phba->mbox_mem_pool); 630 } 631 632 /* Get Option rom version */ 633 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 634 if (!pmb) { 635 phba->link_state = LPFC_HBA_ERROR; 636 return -ENOMEM; 637 } 638 639 lpfc_dump_wakeup_param(phba, pmb); 640 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 641 pmb->vport = phba->pport; 642 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 643 644 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 646 "to get Option ROM version status x%x\n", rc); 647 mempool_free(pmb, phba->mbox_mem_pool); 648 } 649 650 return 0; 651 } 652 653 /** 654 * lpfc_hba_init_link - Initialize the FC link 655 * @phba: pointer to lpfc hba data structure. 656 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 657 * 658 * This routine will issue the INIT_LINK mailbox command call. 659 * It is available to other drivers through the lpfc_hba data 660 * structure for use as a delayed link up mechanism with the 661 * module parameter lpfc_suppress_link_up. 662 * 663 * Return code 664 * 0 - success 665 * Any other value - error 666 **/ 667 int 668 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 669 { 670 struct lpfc_vport *vport = phba->pport; 671 LPFC_MBOXQ_t *pmb; 672 MAILBOX_t *mb; 673 int rc; 674 675 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 676 if (!pmb) { 677 phba->link_state = LPFC_HBA_ERROR; 678 return -ENOMEM; 679 } 680 mb = &pmb->u.mb; 681 pmb->vport = vport; 682 683 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 684 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 685 lpfc_set_loopback_flag(phba); 686 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 687 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 689 "0498 Adapter failed to init, mbxCmd x%x " 690 "INIT_LINK, mbxStatus x%x\n", 691 mb->mbxCommand, mb->mbxStatus); 692 if (phba->sli_rev <= LPFC_SLI_REV3) { 693 /* Clear all interrupt enable conditions */ 694 writel(0, phba->HCregaddr); 695 readl(phba->HCregaddr); /* flush */ 696 /* Clear all pending interrupts */ 697 writel(0xffffffff, phba->HAregaddr); 698 readl(phba->HAregaddr); /* flush */ 699 } 700 phba->link_state = LPFC_HBA_ERROR; 701 if (rc != MBX_BUSY || flag == MBX_POLL) 702 mempool_free(pmb, phba->mbox_mem_pool); 703 return -EIO; 704 } 705 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 706 if (flag == MBX_POLL) 707 mempool_free(pmb, phba->mbox_mem_pool); 708 709 return 0; 710 } 711 712 /** 713 * lpfc_hba_down_link - this routine downs the FC link 714 * @phba: pointer to lpfc hba data structure. 715 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 716 * 717 * This routine will issue the DOWN_LINK mailbox command call. 718 * It is available to other drivers through the lpfc_hba data 719 * structure for use to stop the link. 720 * 721 * Return code 722 * 0 - success 723 * Any other value - error 724 **/ 725 int 726 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 727 { 728 LPFC_MBOXQ_t *pmb; 729 int rc; 730 731 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 732 if (!pmb) { 733 phba->link_state = LPFC_HBA_ERROR; 734 return -ENOMEM; 735 } 736 737 lpfc_printf_log(phba, 738 KERN_ERR, LOG_INIT, 739 "0491 Adapter Link is disabled.\n"); 740 lpfc_down_link(phba, pmb); 741 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 742 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 743 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 744 lpfc_printf_log(phba, 745 KERN_ERR, LOG_INIT, 746 "2522 Adapter failed to issue DOWN_LINK" 747 " mbox command rc 0x%x\n", rc); 748 749 mempool_free(pmb, phba->mbox_mem_pool); 750 return -EIO; 751 } 752 if (flag == MBX_POLL) 753 mempool_free(pmb, phba->mbox_mem_pool); 754 755 return 0; 756 } 757 758 /** 759 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 760 * @phba: pointer to lpfc HBA data structure. 761 * 762 * This routine will do LPFC uninitialization before the HBA is reset when 763 * bringing down the SLI Layer. 764 * 765 * Return codes 766 * 0 - success. 767 * Any other value - error. 768 **/ 769 int 770 lpfc_hba_down_prep(struct lpfc_hba *phba) 771 { 772 struct lpfc_vport **vports; 773 int i; 774 775 if (phba->sli_rev <= LPFC_SLI_REV3) { 776 /* Disable interrupts */ 777 writel(0, phba->HCregaddr); 778 readl(phba->HCregaddr); /* flush */ 779 } 780 781 if (phba->pport->load_flag & FC_UNLOADING) 782 lpfc_cleanup_discovery_resources(phba->pport); 783 else { 784 vports = lpfc_create_vport_work_array(phba); 785 if (vports != NULL) 786 for (i = 0; i <= phba->max_vports && 787 vports[i] != NULL; i++) 788 lpfc_cleanup_discovery_resources(vports[i]); 789 lpfc_destroy_vport_work_array(phba, vports); 790 } 791 return 0; 792 } 793 794 /** 795 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 796 * @phba: pointer to lpfc HBA data structure. 797 * 798 * This routine will do uninitialization after the HBA is reset when bring 799 * down the SLI Layer. 800 * 801 * Return codes 802 * 0 - success. 803 * Any other value - error. 804 **/ 805 static int 806 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 807 { 808 struct lpfc_sli *psli = &phba->sli; 809 struct lpfc_sli_ring *pring; 810 struct lpfc_dmabuf *mp, *next_mp; 811 LIST_HEAD(completions); 812 int i; 813 814 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 815 lpfc_sli_hbqbuf_free_all(phba); 816 else { 817 /* Cleanup preposted buffers on the ELS ring */ 818 pring = &psli->ring[LPFC_ELS_RING]; 819 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 820 list_del(&mp->list); 821 pring->postbufq_cnt--; 822 lpfc_mbuf_free(phba, mp->virt, mp->phys); 823 kfree(mp); 824 } 825 } 826 827 spin_lock_irq(&phba->hbalock); 828 for (i = 0; i < psli->num_rings; i++) { 829 pring = &psli->ring[i]; 830 831 /* At this point in time the HBA is either reset or DOA. Either 832 * way, nothing should be on txcmplq as it will NEVER complete. 833 */ 834 list_splice_init(&pring->txcmplq, &completions); 835 pring->txcmplq_cnt = 0; 836 spin_unlock_irq(&phba->hbalock); 837 838 /* Cancel all the IOCBs from the completions list */ 839 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 840 IOERR_SLI_ABORTED); 841 842 lpfc_sli_abort_iocb_ring(phba, pring); 843 spin_lock_irq(&phba->hbalock); 844 } 845 spin_unlock_irq(&phba->hbalock); 846 847 return 0; 848 } 849 850 /** 851 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 852 * @phba: pointer to lpfc HBA data structure. 853 * 854 * This routine will do uninitialization after the HBA is reset when bring 855 * down the SLI Layer. 856 * 857 * Return codes 858 * 0 - success. 859 * Any other value - error. 860 **/ 861 static int 862 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 863 { 864 struct lpfc_scsi_buf *psb, *psb_next; 865 LIST_HEAD(aborts); 866 int ret; 867 unsigned long iflag = 0; 868 struct lpfc_sglq *sglq_entry = NULL; 869 870 ret = lpfc_hba_down_post_s3(phba); 871 if (ret) 872 return ret; 873 /* At this point in time the HBA is either reset or DOA. Either 874 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 875 * on the lpfc_sgl_list so that it can either be freed if the 876 * driver is unloading or reposted if the driver is restarting 877 * the port. 878 */ 879 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 880 /* scsl_buf_list */ 881 /* abts_sgl_list_lock required because worker thread uses this 882 * list. 883 */ 884 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 885 list_for_each_entry(sglq_entry, 886 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 887 sglq_entry->state = SGL_FREED; 888 889 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 890 &phba->sli4_hba.lpfc_sgl_list); 891 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 892 /* abts_scsi_buf_list_lock required because worker thread uses this 893 * list. 894 */ 895 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 896 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 897 &aborts); 898 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 899 spin_unlock_irq(&phba->hbalock); 900 901 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 902 psb->pCmd = NULL; 903 psb->status = IOSTAT_SUCCESS; 904 } 905 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 906 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 907 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 908 return 0; 909 } 910 911 /** 912 * lpfc_hba_down_post - Wrapper func for hba down post routine 913 * @phba: pointer to lpfc HBA data structure. 914 * 915 * This routine wraps the actual SLI3 or SLI4 routine for performing 916 * uninitialization after the HBA is reset when bring down the SLI Layer. 917 * 918 * Return codes 919 * 0 - success. 920 * Any other value - error. 921 **/ 922 int 923 lpfc_hba_down_post(struct lpfc_hba *phba) 924 { 925 return (*phba->lpfc_hba_down_post)(phba); 926 } 927 928 /** 929 * lpfc_hb_timeout - The HBA-timer timeout handler 930 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 931 * 932 * This is the HBA-timer timeout handler registered to the lpfc driver. When 933 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 934 * work-port-events bitmap and the worker thread is notified. This timeout 935 * event will be used by the worker thread to invoke the actual timeout 936 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 937 * be performed in the timeout handler and the HBA timeout event bit shall 938 * be cleared by the worker thread after it has taken the event bitmap out. 939 **/ 940 static void 941 lpfc_hb_timeout(unsigned long ptr) 942 { 943 struct lpfc_hba *phba; 944 uint32_t tmo_posted; 945 unsigned long iflag; 946 947 phba = (struct lpfc_hba *)ptr; 948 949 /* Check for heart beat timeout conditions */ 950 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 951 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 952 if (!tmo_posted) 953 phba->pport->work_port_events |= WORKER_HB_TMO; 954 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 955 956 /* Tell the worker thread there is work to do */ 957 if (!tmo_posted) 958 lpfc_worker_wake_up(phba); 959 return; 960 } 961 962 /** 963 * lpfc_rrq_timeout - The RRQ-timer timeout handler 964 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 965 * 966 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 967 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 968 * work-port-events bitmap and the worker thread is notified. This timeout 969 * event will be used by the worker thread to invoke the actual timeout 970 * handler routine, lpfc_rrq_handler. Any periodical operations will 971 * be performed in the timeout handler and the RRQ timeout event bit shall 972 * be cleared by the worker thread after it has taken the event bitmap out. 973 **/ 974 static void 975 lpfc_rrq_timeout(unsigned long ptr) 976 { 977 struct lpfc_hba *phba; 978 unsigned long iflag; 979 980 phba = (struct lpfc_hba *)ptr; 981 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 982 phba->hba_flag |= HBA_RRQ_ACTIVE; 983 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 984 lpfc_worker_wake_up(phba); 985 } 986 987 /** 988 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 989 * @phba: pointer to lpfc hba data structure. 990 * @pmboxq: pointer to the driver internal queue element for mailbox command. 991 * 992 * This is the callback function to the lpfc heart-beat mailbox command. 993 * If configured, the lpfc driver issues the heart-beat mailbox command to 994 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 995 * heart-beat mailbox command is issued, the driver shall set up heart-beat 996 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 997 * heart-beat outstanding state. Once the mailbox command comes back and 998 * no error conditions detected, the heart-beat mailbox command timer is 999 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1000 * state is cleared for the next heart-beat. If the timer expired with the 1001 * heart-beat outstanding state set, the driver will put the HBA offline. 1002 **/ 1003 static void 1004 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1005 { 1006 unsigned long drvr_flag; 1007 1008 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1009 phba->hb_outstanding = 0; 1010 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1011 1012 /* Check and reset heart-beat timer is necessary */ 1013 mempool_free(pmboxq, phba->mbox_mem_pool); 1014 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1015 !(phba->link_state == LPFC_HBA_ERROR) && 1016 !(phba->pport->load_flag & FC_UNLOADING)) 1017 mod_timer(&phba->hb_tmofunc, 1018 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1019 return; 1020 } 1021 1022 /** 1023 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1024 * @phba: pointer to lpfc hba data structure. 1025 * 1026 * This is the actual HBA-timer timeout handler to be invoked by the worker 1027 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1028 * handler performs any periodic operations needed for the device. If such 1029 * periodic event has already been attended to either in the interrupt handler 1030 * or by processing slow-ring or fast-ring events within the HBA-timer 1031 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1032 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1033 * is configured and there is no heart-beat mailbox command outstanding, a 1034 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1035 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1036 * to offline. 1037 **/ 1038 void 1039 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1040 { 1041 struct lpfc_vport **vports; 1042 LPFC_MBOXQ_t *pmboxq; 1043 struct lpfc_dmabuf *buf_ptr; 1044 int retval, i; 1045 struct lpfc_sli *psli = &phba->sli; 1046 LIST_HEAD(completions); 1047 1048 vports = lpfc_create_vport_work_array(phba); 1049 if (vports != NULL) 1050 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1051 lpfc_rcv_seq_check_edtov(vports[i]); 1052 lpfc_destroy_vport_work_array(phba, vports); 1053 1054 if ((phba->link_state == LPFC_HBA_ERROR) || 1055 (phba->pport->load_flag & FC_UNLOADING) || 1056 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1057 return; 1058 1059 spin_lock_irq(&phba->pport->work_port_lock); 1060 1061 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1062 jiffies)) { 1063 spin_unlock_irq(&phba->pport->work_port_lock); 1064 if (!phba->hb_outstanding) 1065 mod_timer(&phba->hb_tmofunc, 1066 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1067 else 1068 mod_timer(&phba->hb_tmofunc, 1069 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1070 return; 1071 } 1072 spin_unlock_irq(&phba->pport->work_port_lock); 1073 1074 if (phba->elsbuf_cnt && 1075 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1076 spin_lock_irq(&phba->hbalock); 1077 list_splice_init(&phba->elsbuf, &completions); 1078 phba->elsbuf_cnt = 0; 1079 phba->elsbuf_prev_cnt = 0; 1080 spin_unlock_irq(&phba->hbalock); 1081 1082 while (!list_empty(&completions)) { 1083 list_remove_head(&completions, buf_ptr, 1084 struct lpfc_dmabuf, list); 1085 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1086 kfree(buf_ptr); 1087 } 1088 } 1089 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1090 1091 /* If there is no heart beat outstanding, issue a heartbeat command */ 1092 if (phba->cfg_enable_hba_heartbeat) { 1093 if (!phba->hb_outstanding) { 1094 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1095 (list_empty(&psli->mboxq))) { 1096 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1097 GFP_KERNEL); 1098 if (!pmboxq) { 1099 mod_timer(&phba->hb_tmofunc, 1100 jiffies + 1101 HZ * LPFC_HB_MBOX_INTERVAL); 1102 return; 1103 } 1104 1105 lpfc_heart_beat(phba, pmboxq); 1106 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1107 pmboxq->vport = phba->pport; 1108 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1109 MBX_NOWAIT); 1110 1111 if (retval != MBX_BUSY && 1112 retval != MBX_SUCCESS) { 1113 mempool_free(pmboxq, 1114 phba->mbox_mem_pool); 1115 mod_timer(&phba->hb_tmofunc, 1116 jiffies + 1117 HZ * LPFC_HB_MBOX_INTERVAL); 1118 return; 1119 } 1120 phba->skipped_hb = 0; 1121 phba->hb_outstanding = 1; 1122 } else if (time_before_eq(phba->last_completion_time, 1123 phba->skipped_hb)) { 1124 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1125 "2857 Last completion time not " 1126 " updated in %d ms\n", 1127 jiffies_to_msecs(jiffies 1128 - phba->last_completion_time)); 1129 } else 1130 phba->skipped_hb = jiffies; 1131 1132 mod_timer(&phba->hb_tmofunc, 1133 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1134 return; 1135 } else { 1136 /* 1137 * If heart beat timeout called with hb_outstanding set 1138 * we need to give the hb mailbox cmd a chance to 1139 * complete or TMO. 1140 */ 1141 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1142 "0459 Adapter heartbeat still out" 1143 "standing:last compl time was %d ms.\n", 1144 jiffies_to_msecs(jiffies 1145 - phba->last_completion_time)); 1146 mod_timer(&phba->hb_tmofunc, 1147 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1148 } 1149 } 1150 } 1151 1152 /** 1153 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1154 * @phba: pointer to lpfc hba data structure. 1155 * 1156 * This routine is called to bring the HBA offline when HBA hardware error 1157 * other than Port Error 6 has been detected. 1158 **/ 1159 static void 1160 lpfc_offline_eratt(struct lpfc_hba *phba) 1161 { 1162 struct lpfc_sli *psli = &phba->sli; 1163 1164 spin_lock_irq(&phba->hbalock); 1165 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1166 spin_unlock_irq(&phba->hbalock); 1167 lpfc_offline_prep(phba); 1168 1169 lpfc_offline(phba); 1170 lpfc_reset_barrier(phba); 1171 spin_lock_irq(&phba->hbalock); 1172 lpfc_sli_brdreset(phba); 1173 spin_unlock_irq(&phba->hbalock); 1174 lpfc_hba_down_post(phba); 1175 lpfc_sli_brdready(phba, HS_MBRDY); 1176 lpfc_unblock_mgmt_io(phba); 1177 phba->link_state = LPFC_HBA_ERROR; 1178 return; 1179 } 1180 1181 /** 1182 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1183 * @phba: pointer to lpfc hba data structure. 1184 * 1185 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1186 * other than Port Error 6 has been detected. 1187 **/ 1188 static void 1189 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1190 { 1191 lpfc_offline_prep(phba); 1192 lpfc_offline(phba); 1193 lpfc_sli4_brdreset(phba); 1194 lpfc_hba_down_post(phba); 1195 lpfc_sli4_post_status_check(phba); 1196 lpfc_unblock_mgmt_io(phba); 1197 phba->link_state = LPFC_HBA_ERROR; 1198 } 1199 1200 /** 1201 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1202 * @phba: pointer to lpfc hba data structure. 1203 * 1204 * This routine is invoked to handle the deferred HBA hardware error 1205 * conditions. This type of error is indicated by HBA by setting ER1 1206 * and another ER bit in the host status register. The driver will 1207 * wait until the ER1 bit clears before handling the error condition. 1208 **/ 1209 static void 1210 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1211 { 1212 uint32_t old_host_status = phba->work_hs; 1213 struct lpfc_sli_ring *pring; 1214 struct lpfc_sli *psli = &phba->sli; 1215 1216 /* If the pci channel is offline, ignore possible errors, 1217 * since we cannot communicate with the pci card anyway. 1218 */ 1219 if (pci_channel_offline(phba->pcidev)) { 1220 spin_lock_irq(&phba->hbalock); 1221 phba->hba_flag &= ~DEFER_ERATT; 1222 spin_unlock_irq(&phba->hbalock); 1223 return; 1224 } 1225 1226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1227 "0479 Deferred Adapter Hardware Error " 1228 "Data: x%x x%x x%x\n", 1229 phba->work_hs, 1230 phba->work_status[0], phba->work_status[1]); 1231 1232 spin_lock_irq(&phba->hbalock); 1233 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1234 spin_unlock_irq(&phba->hbalock); 1235 1236 1237 /* 1238 * Firmware stops when it triggred erratt. That could cause the I/Os 1239 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1240 * SCSI layer retry it after re-establishing link. 1241 */ 1242 pring = &psli->ring[psli->fcp_ring]; 1243 lpfc_sli_abort_iocb_ring(phba, pring); 1244 1245 /* 1246 * There was a firmware error. Take the hba offline and then 1247 * attempt to restart it. 1248 */ 1249 lpfc_offline_prep(phba); 1250 lpfc_offline(phba); 1251 1252 /* Wait for the ER1 bit to clear.*/ 1253 while (phba->work_hs & HS_FFER1) { 1254 msleep(100); 1255 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1256 phba->work_hs = UNPLUG_ERR ; 1257 break; 1258 } 1259 /* If driver is unloading let the worker thread continue */ 1260 if (phba->pport->load_flag & FC_UNLOADING) { 1261 phba->work_hs = 0; 1262 break; 1263 } 1264 } 1265 1266 /* 1267 * This is to ptrotect against a race condition in which 1268 * first write to the host attention register clear the 1269 * host status register. 1270 */ 1271 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1272 phba->work_hs = old_host_status & ~HS_FFER1; 1273 1274 spin_lock_irq(&phba->hbalock); 1275 phba->hba_flag &= ~DEFER_ERATT; 1276 spin_unlock_irq(&phba->hbalock); 1277 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1278 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1279 } 1280 1281 static void 1282 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1283 { 1284 struct lpfc_board_event_header board_event; 1285 struct Scsi_Host *shost; 1286 1287 board_event.event_type = FC_REG_BOARD_EVENT; 1288 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1289 shost = lpfc_shost_from_vport(phba->pport); 1290 fc_host_post_vendor_event(shost, fc_get_event_number(), 1291 sizeof(board_event), 1292 (char *) &board_event, 1293 LPFC_NL_VENDOR_ID); 1294 } 1295 1296 /** 1297 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1298 * @phba: pointer to lpfc hba data structure. 1299 * 1300 * This routine is invoked to handle the following HBA hardware error 1301 * conditions: 1302 * 1 - HBA error attention interrupt 1303 * 2 - DMA ring index out of range 1304 * 3 - Mailbox command came back as unknown 1305 **/ 1306 static void 1307 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1308 { 1309 struct lpfc_vport *vport = phba->pport; 1310 struct lpfc_sli *psli = &phba->sli; 1311 struct lpfc_sli_ring *pring; 1312 uint32_t event_data; 1313 unsigned long temperature; 1314 struct temp_event temp_event_data; 1315 struct Scsi_Host *shost; 1316 1317 /* If the pci channel is offline, ignore possible errors, 1318 * since we cannot communicate with the pci card anyway. 1319 */ 1320 if (pci_channel_offline(phba->pcidev)) { 1321 spin_lock_irq(&phba->hbalock); 1322 phba->hba_flag &= ~DEFER_ERATT; 1323 spin_unlock_irq(&phba->hbalock); 1324 return; 1325 } 1326 1327 /* If resets are disabled then leave the HBA alone and return */ 1328 if (!phba->cfg_enable_hba_reset) 1329 return; 1330 1331 /* Send an internal error event to mgmt application */ 1332 lpfc_board_errevt_to_mgmt(phba); 1333 1334 if (phba->hba_flag & DEFER_ERATT) 1335 lpfc_handle_deferred_eratt(phba); 1336 1337 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1338 if (phba->work_hs & HS_FFER6) 1339 /* Re-establishing Link */ 1340 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1341 "1301 Re-establishing Link " 1342 "Data: x%x x%x x%x\n", 1343 phba->work_hs, phba->work_status[0], 1344 phba->work_status[1]); 1345 if (phba->work_hs & HS_FFER8) 1346 /* Device Zeroization */ 1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1348 "2861 Host Authentication device " 1349 "zeroization Data:x%x x%x x%x\n", 1350 phba->work_hs, phba->work_status[0], 1351 phba->work_status[1]); 1352 1353 spin_lock_irq(&phba->hbalock); 1354 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1355 spin_unlock_irq(&phba->hbalock); 1356 1357 /* 1358 * Firmware stops when it triggled erratt with HS_FFER6. 1359 * That could cause the I/Os dropped by the firmware. 1360 * Error iocb (I/O) on txcmplq and let the SCSI layer 1361 * retry it after re-establishing link. 1362 */ 1363 pring = &psli->ring[psli->fcp_ring]; 1364 lpfc_sli_abort_iocb_ring(phba, pring); 1365 1366 /* 1367 * There was a firmware error. Take the hba offline and then 1368 * attempt to restart it. 1369 */ 1370 lpfc_offline_prep(phba); 1371 lpfc_offline(phba); 1372 lpfc_sli_brdrestart(phba); 1373 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1374 lpfc_unblock_mgmt_io(phba); 1375 return; 1376 } 1377 lpfc_unblock_mgmt_io(phba); 1378 } else if (phba->work_hs & HS_CRIT_TEMP) { 1379 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1380 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1381 temp_event_data.event_code = LPFC_CRIT_TEMP; 1382 temp_event_data.data = (uint32_t)temperature; 1383 1384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1385 "0406 Adapter maximum temperature exceeded " 1386 "(%ld), taking this port offline " 1387 "Data: x%x x%x x%x\n", 1388 temperature, phba->work_hs, 1389 phba->work_status[0], phba->work_status[1]); 1390 1391 shost = lpfc_shost_from_vport(phba->pport); 1392 fc_host_post_vendor_event(shost, fc_get_event_number(), 1393 sizeof(temp_event_data), 1394 (char *) &temp_event_data, 1395 SCSI_NL_VID_TYPE_PCI 1396 | PCI_VENDOR_ID_EMULEX); 1397 1398 spin_lock_irq(&phba->hbalock); 1399 phba->over_temp_state = HBA_OVER_TEMP; 1400 spin_unlock_irq(&phba->hbalock); 1401 lpfc_offline_eratt(phba); 1402 1403 } else { 1404 /* The if clause above forces this code path when the status 1405 * failure is a value other than FFER6. Do not call the offline 1406 * twice. This is the adapter hardware error path. 1407 */ 1408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1409 "0457 Adapter Hardware Error " 1410 "Data: x%x x%x x%x\n", 1411 phba->work_hs, 1412 phba->work_status[0], phba->work_status[1]); 1413 1414 event_data = FC_REG_DUMP_EVENT; 1415 shost = lpfc_shost_from_vport(vport); 1416 fc_host_post_vendor_event(shost, fc_get_event_number(), 1417 sizeof(event_data), (char *) &event_data, 1418 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1419 1420 lpfc_offline_eratt(phba); 1421 } 1422 return; 1423 } 1424 1425 /** 1426 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1427 * @phba: pointer to lpfc hba data structure. 1428 * 1429 * This routine is invoked to handle the SLI4 HBA hardware error attention 1430 * conditions. 1431 **/ 1432 static void 1433 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1434 { 1435 struct lpfc_vport *vport = phba->pport; 1436 uint32_t event_data; 1437 struct Scsi_Host *shost; 1438 uint32_t if_type; 1439 struct lpfc_register portstat_reg; 1440 int rc; 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 /* 1484 * On error status condition, driver need to wait for port 1485 * ready before performing reset. 1486 */ 1487 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1488 if (!rc) { 1489 /* need reset: attempt for port recovery */ 1490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1491 "2887 Port Error: Attempting " 1492 "Port Recovery\n"); 1493 lpfc_offline_prep(phba); 1494 lpfc_offline(phba); 1495 lpfc_sli_brdrestart(phba); 1496 if (lpfc_online(phba) == 0) { 1497 lpfc_unblock_mgmt_io(phba); 1498 return; 1499 } 1500 /* fall through for not able to recover */ 1501 } 1502 lpfc_sli4_offline_eratt(phba); 1503 break; 1504 case LPFC_SLI_INTF_IF_TYPE_1: 1505 default: 1506 break; 1507 } 1508 } 1509 1510 /** 1511 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1512 * @phba: pointer to lpfc HBA data structure. 1513 * 1514 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1515 * routine from the API jump table function pointer from the lpfc_hba struct. 1516 * 1517 * Return codes 1518 * 0 - success. 1519 * Any other value - error. 1520 **/ 1521 void 1522 lpfc_handle_eratt(struct lpfc_hba *phba) 1523 { 1524 (*phba->lpfc_handle_eratt)(phba); 1525 } 1526 1527 /** 1528 * lpfc_handle_latt - The HBA link event handler 1529 * @phba: pointer to lpfc hba data structure. 1530 * 1531 * This routine is invoked from the worker thread to handle a HBA host 1532 * attention link event. 1533 **/ 1534 void 1535 lpfc_handle_latt(struct lpfc_hba *phba) 1536 { 1537 struct lpfc_vport *vport = phba->pport; 1538 struct lpfc_sli *psli = &phba->sli; 1539 LPFC_MBOXQ_t *pmb; 1540 volatile uint32_t control; 1541 struct lpfc_dmabuf *mp; 1542 int rc = 0; 1543 1544 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1545 if (!pmb) { 1546 rc = 1; 1547 goto lpfc_handle_latt_err_exit; 1548 } 1549 1550 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1551 if (!mp) { 1552 rc = 2; 1553 goto lpfc_handle_latt_free_pmb; 1554 } 1555 1556 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1557 if (!mp->virt) { 1558 rc = 3; 1559 goto lpfc_handle_latt_free_mp; 1560 } 1561 1562 /* Cleanup any outstanding ELS commands */ 1563 lpfc_els_flush_all_cmd(phba); 1564 1565 psli->slistat.link_event++; 1566 lpfc_read_topology(phba, pmb, mp); 1567 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1568 pmb->vport = vport; 1569 /* Block ELS IOCBs until we have processed this mbox command */ 1570 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1571 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1572 if (rc == MBX_NOT_FINISHED) { 1573 rc = 4; 1574 goto lpfc_handle_latt_free_mbuf; 1575 } 1576 1577 /* Clear Link Attention in HA REG */ 1578 spin_lock_irq(&phba->hbalock); 1579 writel(HA_LATT, phba->HAregaddr); 1580 readl(phba->HAregaddr); /* flush */ 1581 spin_unlock_irq(&phba->hbalock); 1582 1583 return; 1584 1585 lpfc_handle_latt_free_mbuf: 1586 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1587 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1588 lpfc_handle_latt_free_mp: 1589 kfree(mp); 1590 lpfc_handle_latt_free_pmb: 1591 mempool_free(pmb, phba->mbox_mem_pool); 1592 lpfc_handle_latt_err_exit: 1593 /* Enable Link attention interrupts */ 1594 spin_lock_irq(&phba->hbalock); 1595 psli->sli_flag |= LPFC_PROCESS_LA; 1596 control = readl(phba->HCregaddr); 1597 control |= HC_LAINT_ENA; 1598 writel(control, phba->HCregaddr); 1599 readl(phba->HCregaddr); /* flush */ 1600 1601 /* Clear Link Attention in HA REG */ 1602 writel(HA_LATT, phba->HAregaddr); 1603 readl(phba->HAregaddr); /* flush */ 1604 spin_unlock_irq(&phba->hbalock); 1605 lpfc_linkdown(phba); 1606 phba->link_state = LPFC_HBA_ERROR; 1607 1608 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1609 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1610 1611 return; 1612 } 1613 1614 /** 1615 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1616 * @phba: pointer to lpfc hba data structure. 1617 * @vpd: pointer to the vital product data. 1618 * @len: length of the vital product data in bytes. 1619 * 1620 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1621 * an array of characters. In this routine, the ModelName, ProgramType, and 1622 * ModelDesc, etc. fields of the phba data structure will be populated. 1623 * 1624 * Return codes 1625 * 0 - pointer to the VPD passed in is NULL 1626 * 1 - success 1627 **/ 1628 int 1629 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1630 { 1631 uint8_t lenlo, lenhi; 1632 int Length; 1633 int i, j; 1634 int finished = 0; 1635 int index = 0; 1636 1637 if (!vpd) 1638 return 0; 1639 1640 /* Vital Product */ 1641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1642 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1643 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1644 (uint32_t) vpd[3]); 1645 while (!finished && (index < (len - 4))) { 1646 switch (vpd[index]) { 1647 case 0x82: 1648 case 0x91: 1649 index += 1; 1650 lenlo = vpd[index]; 1651 index += 1; 1652 lenhi = vpd[index]; 1653 index += 1; 1654 i = ((((unsigned short)lenhi) << 8) + lenlo); 1655 index += i; 1656 break; 1657 case 0x90: 1658 index += 1; 1659 lenlo = vpd[index]; 1660 index += 1; 1661 lenhi = vpd[index]; 1662 index += 1; 1663 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1664 if (Length > len - index) 1665 Length = len - index; 1666 while (Length > 0) { 1667 /* Look for Serial Number */ 1668 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1669 index += 2; 1670 i = vpd[index]; 1671 index += 1; 1672 j = 0; 1673 Length -= (3+i); 1674 while(i--) { 1675 phba->SerialNumber[j++] = vpd[index++]; 1676 if (j == 31) 1677 break; 1678 } 1679 phba->SerialNumber[j] = 0; 1680 continue; 1681 } 1682 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1683 phba->vpd_flag |= VPD_MODEL_DESC; 1684 index += 2; 1685 i = vpd[index]; 1686 index += 1; 1687 j = 0; 1688 Length -= (3+i); 1689 while(i--) { 1690 phba->ModelDesc[j++] = vpd[index++]; 1691 if (j == 255) 1692 break; 1693 } 1694 phba->ModelDesc[j] = 0; 1695 continue; 1696 } 1697 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1698 phba->vpd_flag |= VPD_MODEL_NAME; 1699 index += 2; 1700 i = vpd[index]; 1701 index += 1; 1702 j = 0; 1703 Length -= (3+i); 1704 while(i--) { 1705 phba->ModelName[j++] = vpd[index++]; 1706 if (j == 79) 1707 break; 1708 } 1709 phba->ModelName[j] = 0; 1710 continue; 1711 } 1712 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1713 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1714 index += 2; 1715 i = vpd[index]; 1716 index += 1; 1717 j = 0; 1718 Length -= (3+i); 1719 while(i--) { 1720 phba->ProgramType[j++] = vpd[index++]; 1721 if (j == 255) 1722 break; 1723 } 1724 phba->ProgramType[j] = 0; 1725 continue; 1726 } 1727 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1728 phba->vpd_flag |= VPD_PORT; 1729 index += 2; 1730 i = vpd[index]; 1731 index += 1; 1732 j = 0; 1733 Length -= (3+i); 1734 while(i--) { 1735 if ((phba->sli_rev == LPFC_SLI_REV4) && 1736 (phba->sli4_hba.pport_name_sta == 1737 LPFC_SLI4_PPNAME_GET)) { 1738 j++; 1739 index++; 1740 } else 1741 phba->Port[j++] = vpd[index++]; 1742 if (j == 19) 1743 break; 1744 } 1745 if ((phba->sli_rev != LPFC_SLI_REV4) || 1746 (phba->sli4_hba.pport_name_sta == 1747 LPFC_SLI4_PPNAME_NON)) 1748 phba->Port[j] = 0; 1749 continue; 1750 } 1751 else { 1752 index += 2; 1753 i = vpd[index]; 1754 index += 1; 1755 index += i; 1756 Length -= (3 + i); 1757 } 1758 } 1759 finished = 0; 1760 break; 1761 case 0x78: 1762 finished = 1; 1763 break; 1764 default: 1765 index ++; 1766 break; 1767 } 1768 } 1769 1770 return(1); 1771 } 1772 1773 /** 1774 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1775 * @phba: pointer to lpfc hba data structure. 1776 * @mdp: pointer to the data structure to hold the derived model name. 1777 * @descp: pointer to the data structure to hold the derived description. 1778 * 1779 * This routine retrieves HBA's description based on its registered PCI device 1780 * ID. The @descp passed into this function points to an array of 256 chars. It 1781 * shall be returned with the model name, maximum speed, and the host bus type. 1782 * The @mdp passed into this function points to an array of 80 chars. When the 1783 * function returns, the @mdp will be filled with the model name. 1784 **/ 1785 static void 1786 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1787 { 1788 lpfc_vpd_t *vp; 1789 uint16_t dev_id = phba->pcidev->device; 1790 int max_speed; 1791 int GE = 0; 1792 int oneConnect = 0; /* default is not a oneConnect */ 1793 struct { 1794 char *name; 1795 char *bus; 1796 char *function; 1797 } m = {"<Unknown>", "", ""}; 1798 1799 if (mdp && mdp[0] != '\0' 1800 && descp && descp[0] != '\0') 1801 return; 1802 1803 if (phba->lmt & LMT_16Gb) 1804 max_speed = 16; 1805 else if (phba->lmt & LMT_10Gb) 1806 max_speed = 10; 1807 else if (phba->lmt & LMT_8Gb) 1808 max_speed = 8; 1809 else if (phba->lmt & LMT_4Gb) 1810 max_speed = 4; 1811 else if (phba->lmt & LMT_2Gb) 1812 max_speed = 2; 1813 else 1814 max_speed = 1; 1815 1816 vp = &phba->vpd; 1817 1818 switch (dev_id) { 1819 case PCI_DEVICE_ID_FIREFLY: 1820 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1821 break; 1822 case PCI_DEVICE_ID_SUPERFLY: 1823 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1824 m = (typeof(m)){"LP7000", "PCI", 1825 "Fibre Channel Adapter"}; 1826 else 1827 m = (typeof(m)){"LP7000E", "PCI", 1828 "Fibre Channel Adapter"}; 1829 break; 1830 case PCI_DEVICE_ID_DRAGONFLY: 1831 m = (typeof(m)){"LP8000", "PCI", 1832 "Fibre Channel Adapter"}; 1833 break; 1834 case PCI_DEVICE_ID_CENTAUR: 1835 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1836 m = (typeof(m)){"LP9002", "PCI", 1837 "Fibre Channel Adapter"}; 1838 else 1839 m = (typeof(m)){"LP9000", "PCI", 1840 "Fibre Channel Adapter"}; 1841 break; 1842 case PCI_DEVICE_ID_RFLY: 1843 m = (typeof(m)){"LP952", "PCI", 1844 "Fibre Channel Adapter"}; 1845 break; 1846 case PCI_DEVICE_ID_PEGASUS: 1847 m = (typeof(m)){"LP9802", "PCI-X", 1848 "Fibre Channel Adapter"}; 1849 break; 1850 case PCI_DEVICE_ID_THOR: 1851 m = (typeof(m)){"LP10000", "PCI-X", 1852 "Fibre Channel Adapter"}; 1853 break; 1854 case PCI_DEVICE_ID_VIPER: 1855 m = (typeof(m)){"LPX1000", "PCI-X", 1856 "Fibre Channel Adapter"}; 1857 break; 1858 case PCI_DEVICE_ID_PFLY: 1859 m = (typeof(m)){"LP982", "PCI-X", 1860 "Fibre Channel Adapter"}; 1861 break; 1862 case PCI_DEVICE_ID_TFLY: 1863 m = (typeof(m)){"LP1050", "PCI-X", 1864 "Fibre Channel Adapter"}; 1865 break; 1866 case PCI_DEVICE_ID_HELIOS: 1867 m = (typeof(m)){"LP11000", "PCI-X2", 1868 "Fibre Channel Adapter"}; 1869 break; 1870 case PCI_DEVICE_ID_HELIOS_SCSP: 1871 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1872 "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_HELIOS_DCSP: 1875 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1876 "Fibre Channel Adapter"}; 1877 break; 1878 case PCI_DEVICE_ID_NEPTUNE: 1879 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1880 break; 1881 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1882 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1883 break; 1884 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1885 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1886 break; 1887 case PCI_DEVICE_ID_BMID: 1888 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1889 break; 1890 case PCI_DEVICE_ID_BSMB: 1891 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1892 break; 1893 case PCI_DEVICE_ID_ZEPHYR: 1894 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1895 break; 1896 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1897 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1898 break; 1899 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1900 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1901 GE = 1; 1902 break; 1903 case PCI_DEVICE_ID_ZMID: 1904 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_ZSMB: 1907 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1908 break; 1909 case PCI_DEVICE_ID_LP101: 1910 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1911 break; 1912 case PCI_DEVICE_ID_LP10000S: 1913 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1914 break; 1915 case PCI_DEVICE_ID_LP11000S: 1916 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_LPE11000S: 1919 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1920 break; 1921 case PCI_DEVICE_ID_SAT: 1922 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1923 break; 1924 case PCI_DEVICE_ID_SAT_MID: 1925 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1926 break; 1927 case PCI_DEVICE_ID_SAT_SMB: 1928 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1929 break; 1930 case PCI_DEVICE_ID_SAT_DCSP: 1931 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1932 break; 1933 case PCI_DEVICE_ID_SAT_SCSP: 1934 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1935 break; 1936 case PCI_DEVICE_ID_SAT_S: 1937 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1938 break; 1939 case PCI_DEVICE_ID_HORNET: 1940 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1941 GE = 1; 1942 break; 1943 case PCI_DEVICE_ID_PROTEUS_VF: 1944 m = (typeof(m)){"LPev12000", "PCIe IOV", 1945 "Fibre Channel Adapter"}; 1946 break; 1947 case PCI_DEVICE_ID_PROTEUS_PF: 1948 m = (typeof(m)){"LPev12000", "PCIe IOV", 1949 "Fibre Channel Adapter"}; 1950 break; 1951 case PCI_DEVICE_ID_PROTEUS_S: 1952 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1953 "Fibre Channel Adapter"}; 1954 break; 1955 case PCI_DEVICE_ID_TIGERSHARK: 1956 oneConnect = 1; 1957 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 1958 break; 1959 case PCI_DEVICE_ID_TOMCAT: 1960 oneConnect = 1; 1961 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 1962 break; 1963 case PCI_DEVICE_ID_FALCON: 1964 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 1965 "EmulexSecure Fibre"}; 1966 break; 1967 case PCI_DEVICE_ID_BALIUS: 1968 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 1969 "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_LANCER_FC: 1972 case PCI_DEVICE_ID_LANCER_FC_VF: 1973 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 1974 break; 1975 case PCI_DEVICE_ID_LANCER_FCOE: 1976 case PCI_DEVICE_ID_LANCER_FCOE_VF: 1977 oneConnect = 1; 1978 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 1979 break; 1980 default: 1981 m = (typeof(m)){"Unknown", "", ""}; 1982 break; 1983 } 1984 1985 if (mdp && mdp[0] == '\0') 1986 snprintf(mdp, 79,"%s", m.name); 1987 /* 1988 * oneConnect hba requires special processing, they are all initiators 1989 * and we put the port number on the end 1990 */ 1991 if (descp && descp[0] == '\0') { 1992 if (oneConnect) 1993 snprintf(descp, 255, 1994 "Emulex OneConnect %s, %s Initiator, Port %s", 1995 m.name, m.function, 1996 phba->Port); 1997 else 1998 snprintf(descp, 255, 1999 "Emulex %s %d%s %s %s", 2000 m.name, max_speed, (GE) ? "GE" : "Gb", 2001 m.bus, m.function); 2002 } 2003 } 2004 2005 /** 2006 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2007 * @phba: pointer to lpfc hba data structure. 2008 * @pring: pointer to a IOCB ring. 2009 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2010 * 2011 * This routine posts a given number of IOCBs with the associated DMA buffer 2012 * descriptors specified by the cnt argument to the given IOCB ring. 2013 * 2014 * Return codes 2015 * The number of IOCBs NOT able to be posted to the IOCB ring. 2016 **/ 2017 int 2018 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2019 { 2020 IOCB_t *icmd; 2021 struct lpfc_iocbq *iocb; 2022 struct lpfc_dmabuf *mp1, *mp2; 2023 2024 cnt += pring->missbufcnt; 2025 2026 /* While there are buffers to post */ 2027 while (cnt > 0) { 2028 /* Allocate buffer for command iocb */ 2029 iocb = lpfc_sli_get_iocbq(phba); 2030 if (iocb == NULL) { 2031 pring->missbufcnt = cnt; 2032 return cnt; 2033 } 2034 icmd = &iocb->iocb; 2035 2036 /* 2 buffers can be posted per command */ 2037 /* Allocate buffer to post */ 2038 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2039 if (mp1) 2040 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2041 if (!mp1 || !mp1->virt) { 2042 kfree(mp1); 2043 lpfc_sli_release_iocbq(phba, iocb); 2044 pring->missbufcnt = cnt; 2045 return cnt; 2046 } 2047 2048 INIT_LIST_HEAD(&mp1->list); 2049 /* Allocate buffer to post */ 2050 if (cnt > 1) { 2051 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2052 if (mp2) 2053 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2054 &mp2->phys); 2055 if (!mp2 || !mp2->virt) { 2056 kfree(mp2); 2057 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2058 kfree(mp1); 2059 lpfc_sli_release_iocbq(phba, iocb); 2060 pring->missbufcnt = cnt; 2061 return cnt; 2062 } 2063 2064 INIT_LIST_HEAD(&mp2->list); 2065 } else { 2066 mp2 = NULL; 2067 } 2068 2069 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2070 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2071 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2072 icmd->ulpBdeCount = 1; 2073 cnt--; 2074 if (mp2) { 2075 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2076 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2077 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2078 cnt--; 2079 icmd->ulpBdeCount = 2; 2080 } 2081 2082 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2083 icmd->ulpLe = 1; 2084 2085 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2086 IOCB_ERROR) { 2087 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2088 kfree(mp1); 2089 cnt++; 2090 if (mp2) { 2091 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2092 kfree(mp2); 2093 cnt++; 2094 } 2095 lpfc_sli_release_iocbq(phba, iocb); 2096 pring->missbufcnt = cnt; 2097 return cnt; 2098 } 2099 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2100 if (mp2) 2101 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2102 } 2103 pring->missbufcnt = 0; 2104 return 0; 2105 } 2106 2107 /** 2108 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2109 * @phba: pointer to lpfc hba data structure. 2110 * 2111 * This routine posts initial receive IOCB buffers to the ELS ring. The 2112 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2113 * set to 64 IOCBs. 2114 * 2115 * Return codes 2116 * 0 - success (currently always success) 2117 **/ 2118 static int 2119 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2120 { 2121 struct lpfc_sli *psli = &phba->sli; 2122 2123 /* Ring 0, ELS / CT buffers */ 2124 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2125 /* Ring 2 - FCP no buffers needed */ 2126 2127 return 0; 2128 } 2129 2130 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2131 2132 /** 2133 * lpfc_sha_init - Set up initial array of hash table entries 2134 * @HashResultPointer: pointer to an array as hash table. 2135 * 2136 * This routine sets up the initial values to the array of hash table entries 2137 * for the LC HBAs. 2138 **/ 2139 static void 2140 lpfc_sha_init(uint32_t * HashResultPointer) 2141 { 2142 HashResultPointer[0] = 0x67452301; 2143 HashResultPointer[1] = 0xEFCDAB89; 2144 HashResultPointer[2] = 0x98BADCFE; 2145 HashResultPointer[3] = 0x10325476; 2146 HashResultPointer[4] = 0xC3D2E1F0; 2147 } 2148 2149 /** 2150 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2151 * @HashResultPointer: pointer to an initial/result hash table. 2152 * @HashWorkingPointer: pointer to an working hash table. 2153 * 2154 * This routine iterates an initial hash table pointed by @HashResultPointer 2155 * with the values from the working hash table pointeed by @HashWorkingPointer. 2156 * The results are putting back to the initial hash table, returned through 2157 * the @HashResultPointer as the result hash table. 2158 **/ 2159 static void 2160 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2161 { 2162 int t; 2163 uint32_t TEMP; 2164 uint32_t A, B, C, D, E; 2165 t = 16; 2166 do { 2167 HashWorkingPointer[t] = 2168 S(1, 2169 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2170 8] ^ 2171 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2172 } while (++t <= 79); 2173 t = 0; 2174 A = HashResultPointer[0]; 2175 B = HashResultPointer[1]; 2176 C = HashResultPointer[2]; 2177 D = HashResultPointer[3]; 2178 E = HashResultPointer[4]; 2179 2180 do { 2181 if (t < 20) { 2182 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2183 } else if (t < 40) { 2184 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2185 } else if (t < 60) { 2186 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2187 } else { 2188 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2189 } 2190 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2191 E = D; 2192 D = C; 2193 C = S(30, B); 2194 B = A; 2195 A = TEMP; 2196 } while (++t <= 79); 2197 2198 HashResultPointer[0] += A; 2199 HashResultPointer[1] += B; 2200 HashResultPointer[2] += C; 2201 HashResultPointer[3] += D; 2202 HashResultPointer[4] += E; 2203 2204 } 2205 2206 /** 2207 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2208 * @RandomChallenge: pointer to the entry of host challenge random number array. 2209 * @HashWorking: pointer to the entry of the working hash array. 2210 * 2211 * This routine calculates the working hash array referred by @HashWorking 2212 * from the challenge random numbers associated with the host, referred by 2213 * @RandomChallenge. The result is put into the entry of the working hash 2214 * array and returned by reference through @HashWorking. 2215 **/ 2216 static void 2217 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2218 { 2219 *HashWorking = (*RandomChallenge ^ *HashWorking); 2220 } 2221 2222 /** 2223 * lpfc_hba_init - Perform special handling for LC HBA initialization 2224 * @phba: pointer to lpfc hba data structure. 2225 * @hbainit: pointer to an array of unsigned 32-bit integers. 2226 * 2227 * This routine performs the special handling for LC HBA initialization. 2228 **/ 2229 void 2230 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2231 { 2232 int t; 2233 uint32_t *HashWorking; 2234 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2235 2236 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2237 if (!HashWorking) 2238 return; 2239 2240 HashWorking[0] = HashWorking[78] = *pwwnn++; 2241 HashWorking[1] = HashWorking[79] = *pwwnn; 2242 2243 for (t = 0; t < 7; t++) 2244 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2245 2246 lpfc_sha_init(hbainit); 2247 lpfc_sha_iterate(hbainit, HashWorking); 2248 kfree(HashWorking); 2249 } 2250 2251 /** 2252 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2253 * @vport: pointer to a virtual N_Port data structure. 2254 * 2255 * This routine performs the necessary cleanups before deleting the @vport. 2256 * It invokes the discovery state machine to perform necessary state 2257 * transitions and to release the ndlps associated with the @vport. Note, 2258 * the physical port is treated as @vport 0. 2259 **/ 2260 void 2261 lpfc_cleanup(struct lpfc_vport *vport) 2262 { 2263 struct lpfc_hba *phba = vport->phba; 2264 struct lpfc_nodelist *ndlp, *next_ndlp; 2265 int i = 0; 2266 2267 if (phba->link_state > LPFC_LINK_DOWN) 2268 lpfc_port_link_failure(vport); 2269 2270 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2271 if (!NLP_CHK_NODE_ACT(ndlp)) { 2272 ndlp = lpfc_enable_node(vport, ndlp, 2273 NLP_STE_UNUSED_NODE); 2274 if (!ndlp) 2275 continue; 2276 spin_lock_irq(&phba->ndlp_lock); 2277 NLP_SET_FREE_REQ(ndlp); 2278 spin_unlock_irq(&phba->ndlp_lock); 2279 /* Trigger the release of the ndlp memory */ 2280 lpfc_nlp_put(ndlp); 2281 continue; 2282 } 2283 spin_lock_irq(&phba->ndlp_lock); 2284 if (NLP_CHK_FREE_REQ(ndlp)) { 2285 /* The ndlp should not be in memory free mode already */ 2286 spin_unlock_irq(&phba->ndlp_lock); 2287 continue; 2288 } else 2289 /* Indicate request for freeing ndlp memory */ 2290 NLP_SET_FREE_REQ(ndlp); 2291 spin_unlock_irq(&phba->ndlp_lock); 2292 2293 if (vport->port_type != LPFC_PHYSICAL_PORT && 2294 ndlp->nlp_DID == Fabric_DID) { 2295 /* Just free up ndlp with Fabric_DID for vports */ 2296 lpfc_nlp_put(ndlp); 2297 continue; 2298 } 2299 2300 if (ndlp->nlp_type & NLP_FABRIC) 2301 lpfc_disc_state_machine(vport, ndlp, NULL, 2302 NLP_EVT_DEVICE_RECOVERY); 2303 2304 lpfc_disc_state_machine(vport, ndlp, NULL, 2305 NLP_EVT_DEVICE_RM); 2306 2307 } 2308 2309 /* At this point, ALL ndlp's should be gone 2310 * because of the previous NLP_EVT_DEVICE_RM. 2311 * Lets wait for this to happen, if needed. 2312 */ 2313 while (!list_empty(&vport->fc_nodes)) { 2314 if (i++ > 3000) { 2315 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2316 "0233 Nodelist not empty\n"); 2317 list_for_each_entry_safe(ndlp, next_ndlp, 2318 &vport->fc_nodes, nlp_listp) { 2319 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2320 LOG_NODE, 2321 "0282 did:x%x ndlp:x%p " 2322 "usgmap:x%x refcnt:%d\n", 2323 ndlp->nlp_DID, (void *)ndlp, 2324 ndlp->nlp_usg_map, 2325 atomic_read( 2326 &ndlp->kref.refcount)); 2327 } 2328 break; 2329 } 2330 2331 /* Wait for any activity on ndlps to settle */ 2332 msleep(10); 2333 } 2334 lpfc_cleanup_vports_rrqs(vport, NULL); 2335 } 2336 2337 /** 2338 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2339 * @vport: pointer to a virtual N_Port data structure. 2340 * 2341 * This routine stops all the timers associated with a @vport. This function 2342 * is invoked before disabling or deleting a @vport. Note that the physical 2343 * port is treated as @vport 0. 2344 **/ 2345 void 2346 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2347 { 2348 del_timer_sync(&vport->els_tmofunc); 2349 del_timer_sync(&vport->fc_fdmitmo); 2350 del_timer_sync(&vport->delayed_disc_tmo); 2351 lpfc_can_disctmo(vport); 2352 return; 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. The 2360 * caller of this routine should already hold the host lock. 2361 **/ 2362 void 2363 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2364 { 2365 /* Clear pending FCF rediscovery wait flag */ 2366 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2367 2368 /* Now, try to stop the timer */ 2369 del_timer(&phba->fcf.redisc_wait); 2370 } 2371 2372 /** 2373 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2374 * @phba: pointer to lpfc hba data structure. 2375 * 2376 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2377 * checks whether the FCF rediscovery wait timer is pending with the host 2378 * lock held before proceeding with disabling the timer and clearing the 2379 * wait timer pendig flag. 2380 **/ 2381 void 2382 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2383 { 2384 spin_lock_irq(&phba->hbalock); 2385 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2386 /* FCF rediscovery timer already fired or stopped */ 2387 spin_unlock_irq(&phba->hbalock); 2388 return; 2389 } 2390 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2391 /* Clear failover in progress flags */ 2392 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2393 spin_unlock_irq(&phba->hbalock); 2394 } 2395 2396 /** 2397 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2398 * @phba: pointer to lpfc hba data structure. 2399 * 2400 * This routine stops all the timers associated with a HBA. This function is 2401 * invoked before either putting a HBA offline or unloading the driver. 2402 **/ 2403 void 2404 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2405 { 2406 lpfc_stop_vport_timers(phba->pport); 2407 del_timer_sync(&phba->sli.mbox_tmo); 2408 del_timer_sync(&phba->fabric_block_timer); 2409 del_timer_sync(&phba->eratt_poll); 2410 del_timer_sync(&phba->hb_tmofunc); 2411 if (phba->sli_rev == LPFC_SLI_REV4) { 2412 del_timer_sync(&phba->rrq_tmr); 2413 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2414 } 2415 phba->hb_outstanding = 0; 2416 2417 switch (phba->pci_dev_grp) { 2418 case LPFC_PCI_DEV_LP: 2419 /* Stop any LightPulse device specific driver timers */ 2420 del_timer_sync(&phba->fcp_poll_timer); 2421 break; 2422 case LPFC_PCI_DEV_OC: 2423 /* Stop any OneConnect device sepcific driver timers */ 2424 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2425 break; 2426 default: 2427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2428 "0297 Invalid device group (x%x)\n", 2429 phba->pci_dev_grp); 2430 break; 2431 } 2432 return; 2433 } 2434 2435 /** 2436 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2437 * @phba: pointer to lpfc hba data structure. 2438 * 2439 * This routine marks a HBA's management interface as blocked. Once the HBA's 2440 * management interface is marked as blocked, all the user space access to 2441 * the HBA, whether they are from sysfs interface or libdfc interface will 2442 * all be blocked. The HBA is set to block the management interface when the 2443 * driver prepares the HBA interface for online or offline. 2444 **/ 2445 static void 2446 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2447 { 2448 unsigned long iflag; 2449 uint8_t actcmd = MBX_HEARTBEAT; 2450 unsigned long timeout; 2451 2452 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2453 spin_lock_irqsave(&phba->hbalock, iflag); 2454 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2455 if (phba->sli.mbox_active) { 2456 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2457 /* Determine how long we might wait for the active mailbox 2458 * command to be gracefully completed by firmware. 2459 */ 2460 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2461 phba->sli.mbox_active) * 1000) + jiffies; 2462 } 2463 spin_unlock_irqrestore(&phba->hbalock, iflag); 2464 2465 /* Wait for the outstnading mailbox command to complete */ 2466 while (phba->sli.mbox_active) { 2467 /* Check active mailbox complete status every 2ms */ 2468 msleep(2); 2469 if (time_after(jiffies, timeout)) { 2470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2471 "2813 Mgmt IO is Blocked %x " 2472 "- mbox cmd %x still active\n", 2473 phba->sli.sli_flag, actcmd); 2474 break; 2475 } 2476 } 2477 } 2478 2479 /** 2480 * lpfc_online - Initialize and bring a HBA online 2481 * @phba: pointer to lpfc hba data structure. 2482 * 2483 * This routine initializes the HBA and brings a HBA online. During this 2484 * process, the management interface is blocked to prevent user space access 2485 * to the HBA interfering with the driver initialization. 2486 * 2487 * Return codes 2488 * 0 - successful 2489 * 1 - failed 2490 **/ 2491 int 2492 lpfc_online(struct lpfc_hba *phba) 2493 { 2494 struct lpfc_vport *vport; 2495 struct lpfc_vport **vports; 2496 int i; 2497 2498 if (!phba) 2499 return 0; 2500 vport = phba->pport; 2501 2502 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2503 return 0; 2504 2505 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2506 "0458 Bring Adapter online\n"); 2507 2508 lpfc_block_mgmt_io(phba); 2509 2510 if (!lpfc_sli_queue_setup(phba)) { 2511 lpfc_unblock_mgmt_io(phba); 2512 return 1; 2513 } 2514 2515 if (phba->sli_rev == LPFC_SLI_REV4) { 2516 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2517 lpfc_unblock_mgmt_io(phba); 2518 return 1; 2519 } 2520 } else { 2521 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2522 lpfc_unblock_mgmt_io(phba); 2523 return 1; 2524 } 2525 } 2526 2527 vports = lpfc_create_vport_work_array(phba); 2528 if (vports != NULL) 2529 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2530 struct Scsi_Host *shost; 2531 shost = lpfc_shost_from_vport(vports[i]); 2532 spin_lock_irq(shost->host_lock); 2533 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2534 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2535 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2536 if (phba->sli_rev == LPFC_SLI_REV4) 2537 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2538 spin_unlock_irq(shost->host_lock); 2539 } 2540 lpfc_destroy_vport_work_array(phba, vports); 2541 2542 lpfc_unblock_mgmt_io(phba); 2543 return 0; 2544 } 2545 2546 /** 2547 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2548 * @phba: pointer to lpfc hba data structure. 2549 * 2550 * This routine marks a HBA's management interface as not blocked. Once the 2551 * HBA's management interface is marked as not blocked, all the user space 2552 * access to the HBA, whether they are from sysfs interface or libdfc 2553 * interface will be allowed. The HBA is set to block the management interface 2554 * when the driver prepares the HBA interface for online or offline and then 2555 * set to unblock the management interface afterwards. 2556 **/ 2557 void 2558 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2559 { 2560 unsigned long iflag; 2561 2562 spin_lock_irqsave(&phba->hbalock, iflag); 2563 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2564 spin_unlock_irqrestore(&phba->hbalock, iflag); 2565 } 2566 2567 /** 2568 * lpfc_offline_prep - Prepare a HBA to be brought offline 2569 * @phba: pointer to lpfc hba data structure. 2570 * 2571 * This routine is invoked to prepare a HBA to be brought offline. It performs 2572 * unregistration login to all the nodes on all vports and flushes the mailbox 2573 * queue to make it ready to be brought offline. 2574 **/ 2575 void 2576 lpfc_offline_prep(struct lpfc_hba * phba) 2577 { 2578 struct lpfc_vport *vport = phba->pport; 2579 struct lpfc_nodelist *ndlp, *next_ndlp; 2580 struct lpfc_vport **vports; 2581 struct Scsi_Host *shost; 2582 int i; 2583 2584 if (vport->fc_flag & FC_OFFLINE_MODE) 2585 return; 2586 2587 lpfc_block_mgmt_io(phba); 2588 2589 lpfc_linkdown(phba); 2590 2591 /* Issue an unreg_login to all nodes on all vports */ 2592 vports = lpfc_create_vport_work_array(phba); 2593 if (vports != NULL) { 2594 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2595 if (vports[i]->load_flag & FC_UNLOADING) 2596 continue; 2597 shost = lpfc_shost_from_vport(vports[i]); 2598 spin_lock_irq(shost->host_lock); 2599 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2600 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2601 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2602 spin_unlock_irq(shost->host_lock); 2603 2604 shost = lpfc_shost_from_vport(vports[i]); 2605 list_for_each_entry_safe(ndlp, next_ndlp, 2606 &vports[i]->fc_nodes, 2607 nlp_listp) { 2608 if (!NLP_CHK_NODE_ACT(ndlp)) 2609 continue; 2610 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2611 continue; 2612 if (ndlp->nlp_type & NLP_FABRIC) { 2613 lpfc_disc_state_machine(vports[i], ndlp, 2614 NULL, NLP_EVT_DEVICE_RECOVERY); 2615 lpfc_disc_state_machine(vports[i], ndlp, 2616 NULL, NLP_EVT_DEVICE_RM); 2617 } 2618 spin_lock_irq(shost->host_lock); 2619 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2620 spin_unlock_irq(shost->host_lock); 2621 lpfc_unreg_rpi(vports[i], ndlp); 2622 } 2623 } 2624 } 2625 lpfc_destroy_vport_work_array(phba, vports); 2626 2627 lpfc_sli_mbox_sys_shutdown(phba); 2628 } 2629 2630 /** 2631 * lpfc_offline - Bring a HBA offline 2632 * @phba: pointer to lpfc hba data structure. 2633 * 2634 * This routine actually brings a HBA offline. It stops all the timers 2635 * associated with the HBA, brings down the SLI layer, and eventually 2636 * marks the HBA as in offline state for the upper layer protocol. 2637 **/ 2638 void 2639 lpfc_offline(struct lpfc_hba *phba) 2640 { 2641 struct Scsi_Host *shost; 2642 struct lpfc_vport **vports; 2643 int i; 2644 2645 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2646 return; 2647 2648 /* stop port and all timers associated with this hba */ 2649 lpfc_stop_port(phba); 2650 vports = lpfc_create_vport_work_array(phba); 2651 if (vports != NULL) 2652 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2653 lpfc_stop_vport_timers(vports[i]); 2654 lpfc_destroy_vport_work_array(phba, vports); 2655 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2656 "0460 Bring Adapter offline\n"); 2657 /* Bring down the SLI Layer and cleanup. The HBA is offline 2658 now. */ 2659 lpfc_sli_hba_down(phba); 2660 spin_lock_irq(&phba->hbalock); 2661 phba->work_ha = 0; 2662 spin_unlock_irq(&phba->hbalock); 2663 vports = lpfc_create_vport_work_array(phba); 2664 if (vports != NULL) 2665 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2666 shost = lpfc_shost_from_vport(vports[i]); 2667 spin_lock_irq(shost->host_lock); 2668 vports[i]->work_port_events = 0; 2669 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2670 spin_unlock_irq(shost->host_lock); 2671 } 2672 lpfc_destroy_vport_work_array(phba, vports); 2673 } 2674 2675 /** 2676 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2677 * @phba: pointer to lpfc hba data structure. 2678 * 2679 * This routine is to free all the SCSI buffers and IOCBs from the driver 2680 * list back to kernel. It is called from lpfc_pci_remove_one to free 2681 * the internal resources before the device is removed from the system. 2682 * 2683 * Return codes 2684 * 0 - successful (for now, it always returns 0) 2685 **/ 2686 static int 2687 lpfc_scsi_free(struct lpfc_hba *phba) 2688 { 2689 struct lpfc_scsi_buf *sb, *sb_next; 2690 struct lpfc_iocbq *io, *io_next; 2691 2692 spin_lock_irq(&phba->hbalock); 2693 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2694 spin_lock(&phba->scsi_buf_list_lock); 2695 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2696 list_del(&sb->list); 2697 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2698 sb->dma_handle); 2699 kfree(sb); 2700 phba->total_scsi_bufs--; 2701 } 2702 spin_unlock(&phba->scsi_buf_list_lock); 2703 2704 /* Release all the lpfc_iocbq entries maintained by this host. */ 2705 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2706 list_del(&io->list); 2707 kfree(io); 2708 phba->total_iocbq_bufs--; 2709 } 2710 2711 spin_unlock_irq(&phba->hbalock); 2712 return 0; 2713 } 2714 2715 /** 2716 * lpfc_create_port - Create an FC port 2717 * @phba: pointer to lpfc hba data structure. 2718 * @instance: a unique integer ID to this FC port. 2719 * @dev: pointer to the device data structure. 2720 * 2721 * This routine creates a FC port for the upper layer protocol. The FC port 2722 * can be created on top of either a physical port or a virtual port provided 2723 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2724 * and associates the FC port created before adding the shost into the SCSI 2725 * layer. 2726 * 2727 * Return codes 2728 * @vport - pointer to the virtual N_Port data structure. 2729 * NULL - port create failed. 2730 **/ 2731 struct lpfc_vport * 2732 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2733 { 2734 struct lpfc_vport *vport; 2735 struct Scsi_Host *shost; 2736 int error = 0; 2737 2738 if (dev != &phba->pcidev->dev) 2739 shost = scsi_host_alloc(&lpfc_vport_template, 2740 sizeof(struct lpfc_vport)); 2741 else 2742 shost = scsi_host_alloc(&lpfc_template, 2743 sizeof(struct lpfc_vport)); 2744 if (!shost) 2745 goto out; 2746 2747 vport = (struct lpfc_vport *) shost->hostdata; 2748 vport->phba = phba; 2749 vport->load_flag |= FC_LOADING; 2750 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2751 vport->fc_rscn_flush = 0; 2752 2753 lpfc_get_vport_cfgparam(vport); 2754 shost->unique_id = instance; 2755 shost->max_id = LPFC_MAX_TARGET; 2756 shost->max_lun = vport->cfg_max_luns; 2757 shost->this_id = -1; 2758 shost->max_cmd_len = 16; 2759 if (phba->sli_rev == LPFC_SLI_REV4) { 2760 shost->dma_boundary = 2761 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2762 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2763 } 2764 2765 /* 2766 * Set initial can_queue value since 0 is no longer supported and 2767 * scsi_add_host will fail. This will be adjusted later based on the 2768 * max xri value determined in hba setup. 2769 */ 2770 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2771 if (dev != &phba->pcidev->dev) { 2772 shost->transportt = lpfc_vport_transport_template; 2773 vport->port_type = LPFC_NPIV_PORT; 2774 } else { 2775 shost->transportt = lpfc_transport_template; 2776 vport->port_type = LPFC_PHYSICAL_PORT; 2777 } 2778 2779 /* Initialize all internally managed lists. */ 2780 INIT_LIST_HEAD(&vport->fc_nodes); 2781 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2782 spin_lock_init(&vport->work_port_lock); 2783 2784 init_timer(&vport->fc_disctmo); 2785 vport->fc_disctmo.function = lpfc_disc_timeout; 2786 vport->fc_disctmo.data = (unsigned long)vport; 2787 2788 init_timer(&vport->fc_fdmitmo); 2789 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2790 vport->fc_fdmitmo.data = (unsigned long)vport; 2791 2792 init_timer(&vport->els_tmofunc); 2793 vport->els_tmofunc.function = lpfc_els_timeout; 2794 vport->els_tmofunc.data = (unsigned long)vport; 2795 2796 init_timer(&vport->delayed_disc_tmo); 2797 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2798 vport->delayed_disc_tmo.data = (unsigned long)vport; 2799 2800 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2801 if (error) 2802 goto out_put_shost; 2803 2804 spin_lock_irq(&phba->hbalock); 2805 list_add_tail(&vport->listentry, &phba->port_list); 2806 spin_unlock_irq(&phba->hbalock); 2807 return vport; 2808 2809 out_put_shost: 2810 scsi_host_put(shost); 2811 out: 2812 return NULL; 2813 } 2814 2815 /** 2816 * destroy_port - destroy an FC port 2817 * @vport: pointer to an lpfc virtual N_Port data structure. 2818 * 2819 * This routine destroys a FC port from the upper layer protocol. All the 2820 * resources associated with the port are released. 2821 **/ 2822 void 2823 destroy_port(struct lpfc_vport *vport) 2824 { 2825 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2826 struct lpfc_hba *phba = vport->phba; 2827 2828 lpfc_debugfs_terminate(vport); 2829 fc_remove_host(shost); 2830 scsi_remove_host(shost); 2831 2832 spin_lock_irq(&phba->hbalock); 2833 list_del_init(&vport->listentry); 2834 spin_unlock_irq(&phba->hbalock); 2835 2836 lpfc_cleanup(vport); 2837 return; 2838 } 2839 2840 /** 2841 * lpfc_get_instance - Get a unique integer ID 2842 * 2843 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2844 * uses the kernel idr facility to perform the task. 2845 * 2846 * Return codes: 2847 * instance - a unique integer ID allocated as the new instance. 2848 * -1 - lpfc get instance failed. 2849 **/ 2850 int 2851 lpfc_get_instance(void) 2852 { 2853 int instance = 0; 2854 2855 /* Assign an unused number */ 2856 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2857 return -1; 2858 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2859 return -1; 2860 return instance; 2861 } 2862 2863 /** 2864 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2865 * @shost: pointer to SCSI host data structure. 2866 * @time: elapsed time of the scan in jiffies. 2867 * 2868 * This routine is called by the SCSI layer with a SCSI host to determine 2869 * whether the scan host is finished. 2870 * 2871 * Note: there is no scan_start function as adapter initialization will have 2872 * asynchronously kicked off the link initialization. 2873 * 2874 * Return codes 2875 * 0 - SCSI host scan is not over yet. 2876 * 1 - SCSI host scan is over. 2877 **/ 2878 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2879 { 2880 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2881 struct lpfc_hba *phba = vport->phba; 2882 int stat = 0; 2883 2884 spin_lock_irq(shost->host_lock); 2885 2886 if (vport->load_flag & FC_UNLOADING) { 2887 stat = 1; 2888 goto finished; 2889 } 2890 if (time >= 30 * HZ) { 2891 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2892 "0461 Scanning longer than 30 " 2893 "seconds. Continuing initialization\n"); 2894 stat = 1; 2895 goto finished; 2896 } 2897 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 2898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2899 "0465 Link down longer than 15 " 2900 "seconds. Continuing initialization\n"); 2901 stat = 1; 2902 goto finished; 2903 } 2904 2905 if (vport->port_state != LPFC_VPORT_READY) 2906 goto finished; 2907 if (vport->num_disc_nodes || vport->fc_prli_sent) 2908 goto finished; 2909 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 2910 goto finished; 2911 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 2912 goto finished; 2913 2914 stat = 1; 2915 2916 finished: 2917 spin_unlock_irq(shost->host_lock); 2918 return stat; 2919 } 2920 2921 /** 2922 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 2923 * @shost: pointer to SCSI host data structure. 2924 * 2925 * This routine initializes a given SCSI host attributes on a FC port. The 2926 * SCSI host can be either on top of a physical port or a virtual port. 2927 **/ 2928 void lpfc_host_attrib_init(struct Scsi_Host *shost) 2929 { 2930 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2931 struct lpfc_hba *phba = vport->phba; 2932 /* 2933 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 2934 */ 2935 2936 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 2937 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 2938 fc_host_supported_classes(shost) = FC_COS_CLASS3; 2939 2940 memset(fc_host_supported_fc4s(shost), 0, 2941 sizeof(fc_host_supported_fc4s(shost))); 2942 fc_host_supported_fc4s(shost)[2] = 1; 2943 fc_host_supported_fc4s(shost)[7] = 1; 2944 2945 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 2946 sizeof fc_host_symbolic_name(shost)); 2947 2948 fc_host_supported_speeds(shost) = 0; 2949 if (phba->lmt & LMT_16Gb) 2950 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 2951 if (phba->lmt & LMT_10Gb) 2952 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 2953 if (phba->lmt & LMT_8Gb) 2954 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 2955 if (phba->lmt & LMT_4Gb) 2956 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 2957 if (phba->lmt & LMT_2Gb) 2958 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 2959 if (phba->lmt & LMT_1Gb) 2960 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 2961 2962 fc_host_maxframe_size(shost) = 2963 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 2964 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 2965 2966 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 2967 2968 /* This value is also unchanging */ 2969 memset(fc_host_active_fc4s(shost), 0, 2970 sizeof(fc_host_active_fc4s(shost))); 2971 fc_host_active_fc4s(shost)[2] = 1; 2972 fc_host_active_fc4s(shost)[7] = 1; 2973 2974 fc_host_max_npiv_vports(shost) = phba->max_vpi; 2975 spin_lock_irq(shost->host_lock); 2976 vport->load_flag &= ~FC_LOADING; 2977 spin_unlock_irq(shost->host_lock); 2978 } 2979 2980 /** 2981 * lpfc_stop_port_s3 - Stop SLI3 device port 2982 * @phba: pointer to lpfc hba data structure. 2983 * 2984 * This routine is invoked to stop an SLI3 device port, it stops the device 2985 * from generating interrupts and stops the device driver's timers for the 2986 * device. 2987 **/ 2988 static void 2989 lpfc_stop_port_s3(struct lpfc_hba *phba) 2990 { 2991 /* Clear all interrupt enable conditions */ 2992 writel(0, phba->HCregaddr); 2993 readl(phba->HCregaddr); /* flush */ 2994 /* Clear all pending interrupts */ 2995 writel(0xffffffff, phba->HAregaddr); 2996 readl(phba->HAregaddr); /* flush */ 2997 2998 /* Reset some HBA SLI setup states */ 2999 lpfc_stop_hba_timers(phba); 3000 phba->pport->work_port_events = 0; 3001 } 3002 3003 /** 3004 * lpfc_stop_port_s4 - Stop SLI4 device port 3005 * @phba: pointer to lpfc hba data structure. 3006 * 3007 * This routine is invoked to stop an SLI4 device port, it stops the device 3008 * from generating interrupts and stops the device driver's timers for the 3009 * device. 3010 **/ 3011 static void 3012 lpfc_stop_port_s4(struct lpfc_hba *phba) 3013 { 3014 /* Reset some HBA SLI4 setup states */ 3015 lpfc_stop_hba_timers(phba); 3016 phba->pport->work_port_events = 0; 3017 phba->sli4_hba.intr_enable = 0; 3018 } 3019 3020 /** 3021 * lpfc_stop_port - Wrapper function for stopping hba port 3022 * @phba: Pointer to HBA context object. 3023 * 3024 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3025 * the API jump table function pointer from the lpfc_hba struct. 3026 **/ 3027 void 3028 lpfc_stop_port(struct lpfc_hba *phba) 3029 { 3030 phba->lpfc_stop_port(phba); 3031 } 3032 3033 /** 3034 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3035 * @phba: Pointer to hba for which this call is being executed. 3036 * 3037 * This routine starts the timer waiting for the FCF rediscovery to complete. 3038 **/ 3039 void 3040 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3041 { 3042 unsigned long fcf_redisc_wait_tmo = 3043 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3044 /* Start fcf rediscovery wait period timer */ 3045 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3046 spin_lock_irq(&phba->hbalock); 3047 /* Allow action to new fcf asynchronous event */ 3048 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3049 /* Mark the FCF rediscovery pending state */ 3050 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3051 spin_unlock_irq(&phba->hbalock); 3052 } 3053 3054 /** 3055 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3056 * @ptr: Map to lpfc_hba data structure pointer. 3057 * 3058 * This routine is invoked when waiting for FCF table rediscover has been 3059 * timed out. If new FCF record(s) has (have) been discovered during the 3060 * wait period, a new FCF event shall be added to the FCOE async event 3061 * list, and then worker thread shall be waked up for processing from the 3062 * worker thread context. 3063 **/ 3064 void 3065 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3066 { 3067 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3068 3069 /* Don't send FCF rediscovery event if timer cancelled */ 3070 spin_lock_irq(&phba->hbalock); 3071 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3072 spin_unlock_irq(&phba->hbalock); 3073 return; 3074 } 3075 /* Clear FCF rediscovery timer pending flag */ 3076 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3077 /* FCF rediscovery event to worker thread */ 3078 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3079 spin_unlock_irq(&phba->hbalock); 3080 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3081 "2776 FCF rediscover quiescent timer expired\n"); 3082 /* wake up worker thread */ 3083 lpfc_worker_wake_up(phba); 3084 } 3085 3086 /** 3087 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3088 * @phba: pointer to lpfc hba data structure. 3089 * @acqe_link: pointer to the async link completion queue entry. 3090 * 3091 * This routine is to parse the SLI4 link-attention link fault code and 3092 * translate it into the base driver's read link attention mailbox command 3093 * status. 3094 * 3095 * Return: Link-attention status in terms of base driver's coding. 3096 **/ 3097 static uint16_t 3098 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3099 struct lpfc_acqe_link *acqe_link) 3100 { 3101 uint16_t latt_fault; 3102 3103 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3104 case LPFC_ASYNC_LINK_FAULT_NONE: 3105 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3106 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3107 latt_fault = 0; 3108 break; 3109 default: 3110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3111 "0398 Invalid link fault code: x%x\n", 3112 bf_get(lpfc_acqe_link_fault, acqe_link)); 3113 latt_fault = MBXERR_ERROR; 3114 break; 3115 } 3116 return latt_fault; 3117 } 3118 3119 /** 3120 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3121 * @phba: pointer to lpfc hba data structure. 3122 * @acqe_link: pointer to the async link completion queue entry. 3123 * 3124 * This routine is to parse the SLI4 link attention type and translate it 3125 * into the base driver's link attention type coding. 3126 * 3127 * Return: Link attention type in terms of base driver's coding. 3128 **/ 3129 static uint8_t 3130 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3131 struct lpfc_acqe_link *acqe_link) 3132 { 3133 uint8_t att_type; 3134 3135 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3136 case LPFC_ASYNC_LINK_STATUS_DOWN: 3137 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3138 att_type = LPFC_ATT_LINK_DOWN; 3139 break; 3140 case LPFC_ASYNC_LINK_STATUS_UP: 3141 /* Ignore physical link up events - wait for logical link up */ 3142 att_type = LPFC_ATT_RESERVED; 3143 break; 3144 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3145 att_type = LPFC_ATT_LINK_UP; 3146 break; 3147 default: 3148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3149 "0399 Invalid link attention type: x%x\n", 3150 bf_get(lpfc_acqe_link_status, acqe_link)); 3151 att_type = LPFC_ATT_RESERVED; 3152 break; 3153 } 3154 return att_type; 3155 } 3156 3157 /** 3158 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3159 * @phba: pointer to lpfc hba data structure. 3160 * @acqe_link: pointer to the async link completion queue entry. 3161 * 3162 * This routine is to parse the SLI4 link-attention link speed and translate 3163 * it into the base driver's link-attention link speed coding. 3164 * 3165 * Return: Link-attention link speed in terms of base driver's coding. 3166 **/ 3167 static uint8_t 3168 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3169 struct lpfc_acqe_link *acqe_link) 3170 { 3171 uint8_t link_speed; 3172 3173 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3174 case LPFC_ASYNC_LINK_SPEED_ZERO: 3175 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3176 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3177 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3178 break; 3179 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3180 link_speed = LPFC_LINK_SPEED_1GHZ; 3181 break; 3182 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3183 link_speed = LPFC_LINK_SPEED_10GHZ; 3184 break; 3185 default: 3186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3187 "0483 Invalid link-attention link speed: x%x\n", 3188 bf_get(lpfc_acqe_link_speed, acqe_link)); 3189 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3190 break; 3191 } 3192 return link_speed; 3193 } 3194 3195 /** 3196 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3197 * @phba: pointer to lpfc hba data structure. 3198 * @acqe_link: pointer to the async link completion queue entry. 3199 * 3200 * This routine is to handle the SLI4 asynchronous FCoE link event. 3201 **/ 3202 static void 3203 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3204 struct lpfc_acqe_link *acqe_link) 3205 { 3206 struct lpfc_dmabuf *mp; 3207 LPFC_MBOXQ_t *pmb; 3208 MAILBOX_t *mb; 3209 struct lpfc_mbx_read_top *la; 3210 uint8_t att_type; 3211 int rc; 3212 3213 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3214 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3215 return; 3216 phba->fcoe_eventtag = acqe_link->event_tag; 3217 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3218 if (!pmb) { 3219 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3220 "0395 The mboxq allocation failed\n"); 3221 return; 3222 } 3223 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3224 if (!mp) { 3225 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3226 "0396 The lpfc_dmabuf allocation failed\n"); 3227 goto out_free_pmb; 3228 } 3229 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3230 if (!mp->virt) { 3231 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3232 "0397 The mbuf allocation failed\n"); 3233 goto out_free_dmabuf; 3234 } 3235 3236 /* Cleanup any outstanding ELS commands */ 3237 lpfc_els_flush_all_cmd(phba); 3238 3239 /* Block ELS IOCBs until we have done process link event */ 3240 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3241 3242 /* Update link event statistics */ 3243 phba->sli.slistat.link_event++; 3244 3245 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3246 lpfc_read_topology(phba, pmb, mp); 3247 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3248 pmb->vport = phba->pport; 3249 3250 /* Keep the link status for extra SLI4 state machine reference */ 3251 phba->sli4_hba.link_state.speed = 3252 bf_get(lpfc_acqe_link_speed, acqe_link); 3253 phba->sli4_hba.link_state.duplex = 3254 bf_get(lpfc_acqe_link_duplex, acqe_link); 3255 phba->sli4_hba.link_state.status = 3256 bf_get(lpfc_acqe_link_status, acqe_link); 3257 phba->sli4_hba.link_state.type = 3258 bf_get(lpfc_acqe_link_type, acqe_link); 3259 phba->sli4_hba.link_state.number = 3260 bf_get(lpfc_acqe_link_number, acqe_link); 3261 phba->sli4_hba.link_state.fault = 3262 bf_get(lpfc_acqe_link_fault, acqe_link); 3263 phba->sli4_hba.link_state.logical_speed = 3264 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3265 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3266 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3267 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3268 "Logical speed:%dMbps Fault:%d\n", 3269 phba->sli4_hba.link_state.speed, 3270 phba->sli4_hba.link_state.topology, 3271 phba->sli4_hba.link_state.status, 3272 phba->sli4_hba.link_state.type, 3273 phba->sli4_hba.link_state.number, 3274 phba->sli4_hba.link_state.logical_speed * 10, 3275 phba->sli4_hba.link_state.fault); 3276 /* 3277 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3278 * topology info. Note: Optional for non FC-AL ports. 3279 */ 3280 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3281 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3282 if (rc == MBX_NOT_FINISHED) 3283 goto out_free_dmabuf; 3284 return; 3285 } 3286 /* 3287 * For FCoE Mode: fill in all the topology information we need and call 3288 * the READ_TOPOLOGY completion routine to continue without actually 3289 * sending the READ_TOPOLOGY mailbox command to the port. 3290 */ 3291 /* Parse and translate status field */ 3292 mb = &pmb->u.mb; 3293 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3294 3295 /* Parse and translate link attention fields */ 3296 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3297 la->eventTag = acqe_link->event_tag; 3298 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3299 bf_set(lpfc_mbx_read_top_link_spd, la, 3300 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3301 3302 /* Fake the the following irrelvant fields */ 3303 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3304 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3305 bf_set(lpfc_mbx_read_top_il, la, 0); 3306 bf_set(lpfc_mbx_read_top_pb, la, 0); 3307 bf_set(lpfc_mbx_read_top_fa, la, 0); 3308 bf_set(lpfc_mbx_read_top_mm, la, 0); 3309 3310 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3311 lpfc_mbx_cmpl_read_topology(phba, pmb); 3312 3313 return; 3314 3315 out_free_dmabuf: 3316 kfree(mp); 3317 out_free_pmb: 3318 mempool_free(pmb, phba->mbox_mem_pool); 3319 } 3320 3321 /** 3322 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3323 * @phba: pointer to lpfc hba data structure. 3324 * @acqe_fc: pointer to the async fc completion queue entry. 3325 * 3326 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3327 * that the event was received and then issue a read_topology mailbox command so 3328 * that the rest of the driver will treat it the same as SLI3. 3329 **/ 3330 static void 3331 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3332 { 3333 struct lpfc_dmabuf *mp; 3334 LPFC_MBOXQ_t *pmb; 3335 int rc; 3336 3337 if (bf_get(lpfc_trailer_type, acqe_fc) != 3338 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3339 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3340 "2895 Non FC link Event detected.(%d)\n", 3341 bf_get(lpfc_trailer_type, acqe_fc)); 3342 return; 3343 } 3344 /* Keep the link status for extra SLI4 state machine reference */ 3345 phba->sli4_hba.link_state.speed = 3346 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3347 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3348 phba->sli4_hba.link_state.topology = 3349 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3350 phba->sli4_hba.link_state.status = 3351 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3352 phba->sli4_hba.link_state.type = 3353 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3354 phba->sli4_hba.link_state.number = 3355 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3356 phba->sli4_hba.link_state.fault = 3357 bf_get(lpfc_acqe_link_fault, acqe_fc); 3358 phba->sli4_hba.link_state.logical_speed = 3359 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3361 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3362 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3363 "%dMbps Fault:%d\n", 3364 phba->sli4_hba.link_state.speed, 3365 phba->sli4_hba.link_state.topology, 3366 phba->sli4_hba.link_state.status, 3367 phba->sli4_hba.link_state.type, 3368 phba->sli4_hba.link_state.number, 3369 phba->sli4_hba.link_state.logical_speed * 10, 3370 phba->sli4_hba.link_state.fault); 3371 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3372 if (!pmb) { 3373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3374 "2897 The mboxq allocation failed\n"); 3375 return; 3376 } 3377 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3378 if (!mp) { 3379 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3380 "2898 The lpfc_dmabuf allocation failed\n"); 3381 goto out_free_pmb; 3382 } 3383 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3384 if (!mp->virt) { 3385 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3386 "2899 The mbuf allocation failed\n"); 3387 goto out_free_dmabuf; 3388 } 3389 3390 /* Cleanup any outstanding ELS commands */ 3391 lpfc_els_flush_all_cmd(phba); 3392 3393 /* Block ELS IOCBs until we have done process link event */ 3394 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3395 3396 /* Update link event statistics */ 3397 phba->sli.slistat.link_event++; 3398 3399 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3400 lpfc_read_topology(phba, pmb, mp); 3401 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3402 pmb->vport = phba->pport; 3403 3404 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3405 if (rc == MBX_NOT_FINISHED) 3406 goto out_free_dmabuf; 3407 return; 3408 3409 out_free_dmabuf: 3410 kfree(mp); 3411 out_free_pmb: 3412 mempool_free(pmb, phba->mbox_mem_pool); 3413 } 3414 3415 /** 3416 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3417 * @phba: pointer to lpfc hba data structure. 3418 * @acqe_fc: pointer to the async SLI completion queue entry. 3419 * 3420 * This routine is to handle the SLI4 asynchronous SLI events. 3421 **/ 3422 static void 3423 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3424 { 3425 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3426 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3427 "x%08x SLI Event Type:%d", 3428 acqe_sli->event_data1, acqe_sli->event_data2, 3429 bf_get(lpfc_trailer_type, acqe_sli)); 3430 return; 3431 } 3432 3433 /** 3434 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3435 * @vport: pointer to vport data structure. 3436 * 3437 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3438 * response to a CVL event. 3439 * 3440 * Return the pointer to the ndlp with the vport if successful, otherwise 3441 * return NULL. 3442 **/ 3443 static struct lpfc_nodelist * 3444 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3445 { 3446 struct lpfc_nodelist *ndlp; 3447 struct Scsi_Host *shost; 3448 struct lpfc_hba *phba; 3449 3450 if (!vport) 3451 return NULL; 3452 phba = vport->phba; 3453 if (!phba) 3454 return NULL; 3455 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3456 if (!ndlp) { 3457 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3458 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3459 if (!ndlp) 3460 return 0; 3461 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3462 /* Set the node type */ 3463 ndlp->nlp_type |= NLP_FABRIC; 3464 /* Put ndlp onto node list */ 3465 lpfc_enqueue_node(vport, ndlp); 3466 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3467 /* re-setup ndlp without removing from node list */ 3468 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3469 if (!ndlp) 3470 return 0; 3471 } 3472 if ((phba->pport->port_state < LPFC_FLOGI) && 3473 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3474 return NULL; 3475 /* If virtual link is not yet instantiated ignore CVL */ 3476 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3477 && (vport->port_state != LPFC_VPORT_FAILED)) 3478 return NULL; 3479 shost = lpfc_shost_from_vport(vport); 3480 if (!shost) 3481 return NULL; 3482 lpfc_linkdown_port(vport); 3483 lpfc_cleanup_pending_mbox(vport); 3484 spin_lock_irq(shost->host_lock); 3485 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3486 spin_unlock_irq(shost->host_lock); 3487 3488 return ndlp; 3489 } 3490 3491 /** 3492 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3493 * @vport: pointer to lpfc hba data structure. 3494 * 3495 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3496 * response to a FCF dead event. 3497 **/ 3498 static void 3499 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3500 { 3501 struct lpfc_vport **vports; 3502 int i; 3503 3504 vports = lpfc_create_vport_work_array(phba); 3505 if (vports) 3506 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3507 lpfc_sli4_perform_vport_cvl(vports[i]); 3508 lpfc_destroy_vport_work_array(phba, vports); 3509 } 3510 3511 /** 3512 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3513 * @phba: pointer to lpfc hba data structure. 3514 * @acqe_link: pointer to the async fcoe completion queue entry. 3515 * 3516 * This routine is to handle the SLI4 asynchronous fcoe event. 3517 **/ 3518 static void 3519 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3520 struct lpfc_acqe_fip *acqe_fip) 3521 { 3522 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3523 int rc; 3524 struct lpfc_vport *vport; 3525 struct lpfc_nodelist *ndlp; 3526 struct Scsi_Host *shost; 3527 int active_vlink_present; 3528 struct lpfc_vport **vports; 3529 int i; 3530 3531 phba->fc_eventTag = acqe_fip->event_tag; 3532 phba->fcoe_eventtag = acqe_fip->event_tag; 3533 switch (event_type) { 3534 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3535 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3536 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3537 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3538 LOG_DISCOVERY, 3539 "2546 New FCF event, evt_tag:x%x, " 3540 "index:x%x\n", 3541 acqe_fip->event_tag, 3542 acqe_fip->index); 3543 else 3544 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3545 LOG_DISCOVERY, 3546 "2788 FCF param modified event, " 3547 "evt_tag:x%x, index:x%x\n", 3548 acqe_fip->event_tag, 3549 acqe_fip->index); 3550 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3551 /* 3552 * During period of FCF discovery, read the FCF 3553 * table record indexed by the event to update 3554 * FCF roundrobin failover eligible FCF bmask. 3555 */ 3556 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3557 LOG_DISCOVERY, 3558 "2779 Read FCF (x%x) for updating " 3559 "roundrobin FCF failover bmask\n", 3560 acqe_fip->index); 3561 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3562 } 3563 3564 /* If the FCF discovery is in progress, do nothing. */ 3565 spin_lock_irq(&phba->hbalock); 3566 if (phba->hba_flag & FCF_TS_INPROG) { 3567 spin_unlock_irq(&phba->hbalock); 3568 break; 3569 } 3570 /* If fast FCF failover rescan event is pending, do nothing */ 3571 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3572 spin_unlock_irq(&phba->hbalock); 3573 break; 3574 } 3575 3576 /* If the FCF has been in discovered state, do nothing. */ 3577 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3578 spin_unlock_irq(&phba->hbalock); 3579 break; 3580 } 3581 spin_unlock_irq(&phba->hbalock); 3582 3583 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3584 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3585 "2770 Start FCF table scan per async FCF " 3586 "event, evt_tag:x%x, index:x%x\n", 3587 acqe_fip->event_tag, acqe_fip->index); 3588 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3589 LPFC_FCOE_FCF_GET_FIRST); 3590 if (rc) 3591 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3592 "2547 Issue FCF scan read FCF mailbox " 3593 "command failed (x%x)\n", rc); 3594 break; 3595 3596 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3597 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3598 "2548 FCF Table full count 0x%x tag 0x%x\n", 3599 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3600 acqe_fip->event_tag); 3601 break; 3602 3603 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3604 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3605 "2549 FCF (x%x) disconnected from network, " 3606 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3607 /* 3608 * If we are in the middle of FCF failover process, clear 3609 * the corresponding FCF bit in the roundrobin bitmap. 3610 */ 3611 spin_lock_irq(&phba->hbalock); 3612 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3613 spin_unlock_irq(&phba->hbalock); 3614 /* Update FLOGI FCF failover eligible FCF bmask */ 3615 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3616 break; 3617 } 3618 spin_unlock_irq(&phba->hbalock); 3619 3620 /* If the event is not for currently used fcf do nothing */ 3621 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3622 break; 3623 3624 /* 3625 * Otherwise, request the port to rediscover the entire FCF 3626 * table for a fast recovery from case that the current FCF 3627 * is no longer valid as we are not in the middle of FCF 3628 * failover process already. 3629 */ 3630 spin_lock_irq(&phba->hbalock); 3631 /* Mark the fast failover process in progress */ 3632 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3633 spin_unlock_irq(&phba->hbalock); 3634 3635 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3636 "2771 Start FCF fast failover process due to " 3637 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3638 "\n", acqe_fip->event_tag, acqe_fip->index); 3639 rc = lpfc_sli4_redisc_fcf_table(phba); 3640 if (rc) { 3641 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3642 LOG_DISCOVERY, 3643 "2772 Issue FCF rediscover mabilbox " 3644 "command failed, fail through to FCF " 3645 "dead event\n"); 3646 spin_lock_irq(&phba->hbalock); 3647 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3648 spin_unlock_irq(&phba->hbalock); 3649 /* 3650 * Last resort will fail over by treating this 3651 * as a link down to FCF registration. 3652 */ 3653 lpfc_sli4_fcf_dead_failthrough(phba); 3654 } else { 3655 /* Reset FCF roundrobin bmask for new discovery */ 3656 lpfc_sli4_clear_fcf_rr_bmask(phba); 3657 /* 3658 * Handling fast FCF failover to a DEAD FCF event is 3659 * considered equalivant to receiving CVL to all vports. 3660 */ 3661 lpfc_sli4_perform_all_vport_cvl(phba); 3662 } 3663 break; 3664 case LPFC_FIP_EVENT_TYPE_CVL: 3665 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3666 "2718 Clear Virtual Link Received for VPI 0x%x" 3667 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3668 3669 vport = lpfc_find_vport_by_vpid(phba, 3670 acqe_fip->index); 3671 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3672 if (!ndlp) 3673 break; 3674 active_vlink_present = 0; 3675 3676 vports = lpfc_create_vport_work_array(phba); 3677 if (vports) { 3678 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3679 i++) { 3680 if ((!(vports[i]->fc_flag & 3681 FC_VPORT_CVL_RCVD)) && 3682 (vports[i]->port_state > LPFC_FDISC)) { 3683 active_vlink_present = 1; 3684 break; 3685 } 3686 } 3687 lpfc_destroy_vport_work_array(phba, vports); 3688 } 3689 3690 if (active_vlink_present) { 3691 /* 3692 * If there are other active VLinks present, 3693 * re-instantiate the Vlink using FDISC. 3694 */ 3695 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3696 shost = lpfc_shost_from_vport(vport); 3697 spin_lock_irq(shost->host_lock); 3698 ndlp->nlp_flag |= NLP_DELAY_TMO; 3699 spin_unlock_irq(shost->host_lock); 3700 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3701 vport->port_state = LPFC_FDISC; 3702 } else { 3703 /* 3704 * Otherwise, we request port to rediscover 3705 * the entire FCF table for a fast recovery 3706 * from possible case that the current FCF 3707 * is no longer valid if we are not already 3708 * in the FCF failover process. 3709 */ 3710 spin_lock_irq(&phba->hbalock); 3711 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3712 spin_unlock_irq(&phba->hbalock); 3713 break; 3714 } 3715 /* Mark the fast failover process in progress */ 3716 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3717 spin_unlock_irq(&phba->hbalock); 3718 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3719 LOG_DISCOVERY, 3720 "2773 Start FCF failover per CVL, " 3721 "evt_tag:x%x\n", acqe_fip->event_tag); 3722 rc = lpfc_sli4_redisc_fcf_table(phba); 3723 if (rc) { 3724 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3725 LOG_DISCOVERY, 3726 "2774 Issue FCF rediscover " 3727 "mabilbox command failed, " 3728 "through to CVL event\n"); 3729 spin_lock_irq(&phba->hbalock); 3730 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3731 spin_unlock_irq(&phba->hbalock); 3732 /* 3733 * Last resort will be re-try on the 3734 * the current registered FCF entry. 3735 */ 3736 lpfc_retry_pport_discovery(phba); 3737 } else 3738 /* 3739 * Reset FCF roundrobin bmask for new 3740 * discovery. 3741 */ 3742 lpfc_sli4_clear_fcf_rr_bmask(phba); 3743 } 3744 break; 3745 default: 3746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3747 "0288 Unknown FCoE event type 0x%x event tag " 3748 "0x%x\n", event_type, acqe_fip->event_tag); 3749 break; 3750 } 3751 } 3752 3753 /** 3754 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3755 * @phba: pointer to lpfc hba data structure. 3756 * @acqe_link: pointer to the async dcbx completion queue entry. 3757 * 3758 * This routine is to handle the SLI4 asynchronous dcbx event. 3759 **/ 3760 static void 3761 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3762 struct lpfc_acqe_dcbx *acqe_dcbx) 3763 { 3764 phba->fc_eventTag = acqe_dcbx->event_tag; 3765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3766 "0290 The SLI4 DCBX asynchronous event is not " 3767 "handled yet\n"); 3768 } 3769 3770 /** 3771 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3772 * @phba: pointer to lpfc hba data structure. 3773 * @acqe_link: pointer to the async grp5 completion queue entry. 3774 * 3775 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3776 * is an asynchronous notified of a logical link speed change. The Port 3777 * reports the logical link speed in units of 10Mbps. 3778 **/ 3779 static void 3780 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3781 struct lpfc_acqe_grp5 *acqe_grp5) 3782 { 3783 uint16_t prev_ll_spd; 3784 3785 phba->fc_eventTag = acqe_grp5->event_tag; 3786 phba->fcoe_eventtag = acqe_grp5->event_tag; 3787 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3788 phba->sli4_hba.link_state.logical_speed = 3789 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3790 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3791 "2789 GRP5 Async Event: Updating logical link speed " 3792 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3793 (phba->sli4_hba.link_state.logical_speed*10)); 3794 } 3795 3796 /** 3797 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3798 * @phba: pointer to lpfc hba data structure. 3799 * 3800 * This routine is invoked by the worker thread to process all the pending 3801 * SLI4 asynchronous events. 3802 **/ 3803 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3804 { 3805 struct lpfc_cq_event *cq_event; 3806 3807 /* First, declare the async event has been handled */ 3808 spin_lock_irq(&phba->hbalock); 3809 phba->hba_flag &= ~ASYNC_EVENT; 3810 spin_unlock_irq(&phba->hbalock); 3811 /* Now, handle all the async events */ 3812 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3813 /* Get the first event from the head of the event queue */ 3814 spin_lock_irq(&phba->hbalock); 3815 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3816 cq_event, struct lpfc_cq_event, list); 3817 spin_unlock_irq(&phba->hbalock); 3818 /* Process the asynchronous event */ 3819 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3820 case LPFC_TRAILER_CODE_LINK: 3821 lpfc_sli4_async_link_evt(phba, 3822 &cq_event->cqe.acqe_link); 3823 break; 3824 case LPFC_TRAILER_CODE_FCOE: 3825 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3826 break; 3827 case LPFC_TRAILER_CODE_DCBX: 3828 lpfc_sli4_async_dcbx_evt(phba, 3829 &cq_event->cqe.acqe_dcbx); 3830 break; 3831 case LPFC_TRAILER_CODE_GRP5: 3832 lpfc_sli4_async_grp5_evt(phba, 3833 &cq_event->cqe.acqe_grp5); 3834 break; 3835 case LPFC_TRAILER_CODE_FC: 3836 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3837 break; 3838 case LPFC_TRAILER_CODE_SLI: 3839 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3840 break; 3841 default: 3842 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3843 "1804 Invalid asynchrous event code: " 3844 "x%x\n", bf_get(lpfc_trailer_code, 3845 &cq_event->cqe.mcqe_cmpl)); 3846 break; 3847 } 3848 /* Free the completion event processed to the free pool */ 3849 lpfc_sli4_cq_event_release(phba, cq_event); 3850 } 3851 } 3852 3853 /** 3854 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3855 * @phba: pointer to lpfc hba data structure. 3856 * 3857 * This routine is invoked by the worker thread to process FCF table 3858 * rediscovery pending completion event. 3859 **/ 3860 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3861 { 3862 int rc; 3863 3864 spin_lock_irq(&phba->hbalock); 3865 /* Clear FCF rediscovery timeout event */ 3866 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3867 /* Clear driver fast failover FCF record flag */ 3868 phba->fcf.failover_rec.flag = 0; 3869 /* Set state for FCF fast failover */ 3870 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3871 spin_unlock_irq(&phba->hbalock); 3872 3873 /* Scan FCF table from the first entry to re-discover SAN */ 3874 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3875 "2777 Start post-quiescent FCF table scan\n"); 3876 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 3877 if (rc) 3878 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3879 "2747 Issue FCF scan read FCF mailbox " 3880 "command failed 0x%x\n", rc); 3881 } 3882 3883 /** 3884 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 3885 * @phba: pointer to lpfc hba data structure. 3886 * @dev_grp: The HBA PCI-Device group number. 3887 * 3888 * This routine is invoked to set up the per HBA PCI-Device group function 3889 * API jump table entries. 3890 * 3891 * Return: 0 if success, otherwise -ENODEV 3892 **/ 3893 int 3894 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 3895 { 3896 int rc; 3897 3898 /* Set up lpfc PCI-device group */ 3899 phba->pci_dev_grp = dev_grp; 3900 3901 /* The LPFC_PCI_DEV_OC uses SLI4 */ 3902 if (dev_grp == LPFC_PCI_DEV_OC) 3903 phba->sli_rev = LPFC_SLI_REV4; 3904 3905 /* Set up device INIT API function jump table */ 3906 rc = lpfc_init_api_table_setup(phba, dev_grp); 3907 if (rc) 3908 return -ENODEV; 3909 /* Set up SCSI API function jump table */ 3910 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 3911 if (rc) 3912 return -ENODEV; 3913 /* Set up SLI API function jump table */ 3914 rc = lpfc_sli_api_table_setup(phba, dev_grp); 3915 if (rc) 3916 return -ENODEV; 3917 /* Set up MBOX API function jump table */ 3918 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 3919 if (rc) 3920 return -ENODEV; 3921 3922 return 0; 3923 } 3924 3925 /** 3926 * lpfc_log_intr_mode - Log the active interrupt mode 3927 * @phba: pointer to lpfc hba data structure. 3928 * @intr_mode: active interrupt mode adopted. 3929 * 3930 * This routine it invoked to log the currently used active interrupt mode 3931 * to the device. 3932 **/ 3933 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 3934 { 3935 switch (intr_mode) { 3936 case 0: 3937 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3938 "0470 Enable INTx interrupt mode.\n"); 3939 break; 3940 case 1: 3941 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3942 "0481 Enabled MSI interrupt mode.\n"); 3943 break; 3944 case 2: 3945 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3946 "0480 Enabled MSI-X interrupt mode.\n"); 3947 break; 3948 default: 3949 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3950 "0482 Illegal interrupt mode.\n"); 3951 break; 3952 } 3953 return; 3954 } 3955 3956 /** 3957 * lpfc_enable_pci_dev - Enable a generic PCI device. 3958 * @phba: pointer to lpfc hba data structure. 3959 * 3960 * This routine is invoked to enable the PCI device that is common to all 3961 * PCI devices. 3962 * 3963 * Return codes 3964 * 0 - successful 3965 * other values - error 3966 **/ 3967 static int 3968 lpfc_enable_pci_dev(struct lpfc_hba *phba) 3969 { 3970 struct pci_dev *pdev; 3971 int bars = 0; 3972 3973 /* Obtain PCI device reference */ 3974 if (!phba->pcidev) 3975 goto out_error; 3976 else 3977 pdev = phba->pcidev; 3978 /* Select PCI BARs */ 3979 bars = pci_select_bars(pdev, IORESOURCE_MEM); 3980 /* Enable PCI device */ 3981 if (pci_enable_device_mem(pdev)) 3982 goto out_error; 3983 /* Request PCI resource for the device */ 3984 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 3985 goto out_disable_device; 3986 /* Set up device as PCI master and save state for EEH */ 3987 pci_set_master(pdev); 3988 pci_try_set_mwi(pdev); 3989 pci_save_state(pdev); 3990 3991 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 3992 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 3993 pdev->needs_freset = 1; 3994 3995 return 0; 3996 3997 out_disable_device: 3998 pci_disable_device(pdev); 3999 out_error: 4000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4001 "1401 Failed to enable pci device, bars:x%x\n", bars); 4002 return -ENODEV; 4003 } 4004 4005 /** 4006 * lpfc_disable_pci_dev - Disable a generic PCI device. 4007 * @phba: pointer to lpfc hba data structure. 4008 * 4009 * This routine is invoked to disable the PCI device that is common to all 4010 * PCI devices. 4011 **/ 4012 static void 4013 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4014 { 4015 struct pci_dev *pdev; 4016 int bars; 4017 4018 /* Obtain PCI device reference */ 4019 if (!phba->pcidev) 4020 return; 4021 else 4022 pdev = phba->pcidev; 4023 /* Select PCI BARs */ 4024 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4025 /* Release PCI resource and disable PCI device */ 4026 pci_release_selected_regions(pdev, bars); 4027 pci_disable_device(pdev); 4028 /* Null out PCI private reference to driver */ 4029 pci_set_drvdata(pdev, NULL); 4030 4031 return; 4032 } 4033 4034 /** 4035 * lpfc_reset_hba - Reset a hba 4036 * @phba: pointer to lpfc hba data structure. 4037 * 4038 * This routine is invoked to reset a hba device. It brings the HBA 4039 * offline, performs a board restart, and then brings the board back 4040 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4041 * on outstanding mailbox commands. 4042 **/ 4043 void 4044 lpfc_reset_hba(struct lpfc_hba *phba) 4045 { 4046 /* If resets are disabled then set error state and return. */ 4047 if (!phba->cfg_enable_hba_reset) { 4048 phba->link_state = LPFC_HBA_ERROR; 4049 return; 4050 } 4051 lpfc_offline_prep(phba); 4052 lpfc_offline(phba); 4053 lpfc_sli_brdrestart(phba); 4054 lpfc_online(phba); 4055 lpfc_unblock_mgmt_io(phba); 4056 } 4057 4058 /** 4059 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4060 * @phba: pointer to lpfc hba data structure. 4061 * 4062 * This function enables the PCI SR-IOV virtual functions to a physical 4063 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4064 * enable the number of virtual functions to the physical function. As 4065 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4066 * API call does not considered as an error condition for most of the device. 4067 **/ 4068 uint16_t 4069 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4070 { 4071 struct pci_dev *pdev = phba->pcidev; 4072 uint16_t nr_virtfn; 4073 int pos; 4074 4075 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4076 if (pos == 0) 4077 return 0; 4078 4079 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4080 return nr_virtfn; 4081 } 4082 4083 /** 4084 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4085 * @phba: pointer to lpfc hba data structure. 4086 * @nr_vfn: number of virtual functions to be enabled. 4087 * 4088 * This function enables the PCI SR-IOV virtual functions to a physical 4089 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4090 * enable the number of virtual functions to the physical function. As 4091 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4092 * API call does not considered as an error condition for most of the device. 4093 **/ 4094 int 4095 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4096 { 4097 struct pci_dev *pdev = phba->pcidev; 4098 uint16_t max_nr_vfn; 4099 int rc; 4100 4101 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4102 if (nr_vfn > max_nr_vfn) { 4103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4104 "3057 Requested vfs (%d) greater than " 4105 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4106 return -EINVAL; 4107 } 4108 4109 rc = pci_enable_sriov(pdev, nr_vfn); 4110 if (rc) { 4111 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4112 "2806 Failed to enable sriov on this device " 4113 "with vfn number nr_vf:%d, rc:%d\n", 4114 nr_vfn, rc); 4115 } else 4116 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4117 "2807 Successful enable sriov on this device " 4118 "with vfn number nr_vf:%d\n", nr_vfn); 4119 return rc; 4120 } 4121 4122 /** 4123 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4124 * @phba: pointer to lpfc hba data structure. 4125 * 4126 * This routine is invoked to set up the driver internal resources specific to 4127 * support the SLI-3 HBA device it attached to. 4128 * 4129 * Return codes 4130 * 0 - successful 4131 * other values - error 4132 **/ 4133 static int 4134 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4135 { 4136 struct lpfc_sli *psli; 4137 int rc; 4138 4139 /* 4140 * Initialize timers used by driver 4141 */ 4142 4143 /* Heartbeat timer */ 4144 init_timer(&phba->hb_tmofunc); 4145 phba->hb_tmofunc.function = lpfc_hb_timeout; 4146 phba->hb_tmofunc.data = (unsigned long)phba; 4147 4148 psli = &phba->sli; 4149 /* MBOX heartbeat timer */ 4150 init_timer(&psli->mbox_tmo); 4151 psli->mbox_tmo.function = lpfc_mbox_timeout; 4152 psli->mbox_tmo.data = (unsigned long) phba; 4153 /* FCP polling mode timer */ 4154 init_timer(&phba->fcp_poll_timer); 4155 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4156 phba->fcp_poll_timer.data = (unsigned long) phba; 4157 /* Fabric block timer */ 4158 init_timer(&phba->fabric_block_timer); 4159 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4160 phba->fabric_block_timer.data = (unsigned long) phba; 4161 /* EA polling mode timer */ 4162 init_timer(&phba->eratt_poll); 4163 phba->eratt_poll.function = lpfc_poll_eratt; 4164 phba->eratt_poll.data = (unsigned long) phba; 4165 4166 /* Host attention work mask setup */ 4167 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4168 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4169 4170 /* Get all the module params for configuring this host */ 4171 lpfc_get_cfgparam(phba); 4172 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4173 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4174 /* check for menlo minimum sg count */ 4175 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4176 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4177 } 4178 4179 /* 4180 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4181 * used to create the sg_dma_buf_pool must be dynamically calculated. 4182 * 2 segments are added since the IOCB needs a command and response bde. 4183 */ 4184 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4185 sizeof(struct fcp_rsp) + 4186 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4187 4188 if (phba->cfg_enable_bg) { 4189 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4190 phba->cfg_sg_dma_buf_size += 4191 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4192 } 4193 4194 /* Also reinitialize the host templates with new values. */ 4195 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4196 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4197 4198 phba->max_vpi = LPFC_MAX_VPI; 4199 /* This will be set to correct value after config_port mbox */ 4200 phba->max_vports = 0; 4201 4202 /* 4203 * Initialize the SLI Layer to run with lpfc HBAs. 4204 */ 4205 lpfc_sli_setup(phba); 4206 lpfc_sli_queue_setup(phba); 4207 4208 /* Allocate device driver memory */ 4209 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4210 return -ENOMEM; 4211 4212 /* 4213 * Enable sr-iov virtual functions if supported and configured 4214 * through the module parameter. 4215 */ 4216 if (phba->cfg_sriov_nr_virtfn > 0) { 4217 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4218 phba->cfg_sriov_nr_virtfn); 4219 if (rc) { 4220 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4221 "2808 Requested number of SR-IOV " 4222 "virtual functions (%d) is not " 4223 "supported\n", 4224 phba->cfg_sriov_nr_virtfn); 4225 phba->cfg_sriov_nr_virtfn = 0; 4226 } 4227 } 4228 4229 return 0; 4230 } 4231 4232 /** 4233 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4234 * @phba: pointer to lpfc hba data structure. 4235 * 4236 * This routine is invoked to unset the driver internal resources set up 4237 * specific for supporting the SLI-3 HBA device it attached to. 4238 **/ 4239 static void 4240 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4241 { 4242 /* Free device driver memory allocated */ 4243 lpfc_mem_free_all(phba); 4244 4245 return; 4246 } 4247 4248 /** 4249 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4250 * @phba: pointer to lpfc hba data structure. 4251 * 4252 * This routine is invoked to set up the driver internal resources specific to 4253 * support the SLI-4 HBA device it attached to. 4254 * 4255 * Return codes 4256 * 0 - successful 4257 * other values - error 4258 **/ 4259 static int 4260 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4261 { 4262 struct lpfc_sli *psli; 4263 LPFC_MBOXQ_t *mboxq; 4264 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4265 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4266 struct lpfc_mqe *mqe; 4267 int longs, sli_family; 4268 4269 /* Before proceed, wait for POST done and device ready */ 4270 rc = lpfc_sli4_post_status_check(phba); 4271 if (rc) 4272 return -ENODEV; 4273 4274 /* 4275 * Initialize timers used by driver 4276 */ 4277 4278 /* Heartbeat timer */ 4279 init_timer(&phba->hb_tmofunc); 4280 phba->hb_tmofunc.function = lpfc_hb_timeout; 4281 phba->hb_tmofunc.data = (unsigned long)phba; 4282 init_timer(&phba->rrq_tmr); 4283 phba->rrq_tmr.function = lpfc_rrq_timeout; 4284 phba->rrq_tmr.data = (unsigned long)phba; 4285 4286 psli = &phba->sli; 4287 /* MBOX heartbeat timer */ 4288 init_timer(&psli->mbox_tmo); 4289 psli->mbox_tmo.function = lpfc_mbox_timeout; 4290 psli->mbox_tmo.data = (unsigned long) phba; 4291 /* Fabric block timer */ 4292 init_timer(&phba->fabric_block_timer); 4293 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4294 phba->fabric_block_timer.data = (unsigned long) phba; 4295 /* EA polling mode timer */ 4296 init_timer(&phba->eratt_poll); 4297 phba->eratt_poll.function = lpfc_poll_eratt; 4298 phba->eratt_poll.data = (unsigned long) phba; 4299 /* FCF rediscover timer */ 4300 init_timer(&phba->fcf.redisc_wait); 4301 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4302 phba->fcf.redisc_wait.data = (unsigned long)phba; 4303 4304 /* 4305 * Control structure for handling external multi-buffer mailbox 4306 * command pass-through. 4307 */ 4308 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4309 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4310 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4311 4312 /* 4313 * We need to do a READ_CONFIG mailbox command here before 4314 * calling lpfc_get_cfgparam. For VFs this will report the 4315 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4316 * All of the resources allocated 4317 * for this Port are tied to these values. 4318 */ 4319 /* Get all the module params for configuring this host */ 4320 lpfc_get_cfgparam(phba); 4321 phba->max_vpi = LPFC_MAX_VPI; 4322 /* This will be set to correct value after the read_config mbox */ 4323 phba->max_vports = 0; 4324 4325 /* Program the default value of vlan_id and fc_map */ 4326 phba->valid_vlan = 0; 4327 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4328 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4329 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4330 4331 /* 4332 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4333 * used to create the sg_dma_buf_pool must be dynamically calculated. 4334 * 2 segments are added since the IOCB needs a command and response bde. 4335 * To insure that the scsi sgl does not cross a 4k page boundary only 4336 * sgl sizes of must be a power of 2. 4337 */ 4338 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4339 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge))); 4340 4341 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4342 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4343 switch (sli_family) { 4344 case LPFC_SLI_INTF_FAMILY_BE2: 4345 case LPFC_SLI_INTF_FAMILY_BE3: 4346 /* There is a single hint for BE - 2 pages per BPL. */ 4347 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4348 LPFC_SLI_INTF_SLI_HINT1_1) 4349 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4350 break; 4351 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4352 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4353 default: 4354 break; 4355 } 4356 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4357 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4358 dma_buf_size = dma_buf_size << 1) 4359 ; 4360 if (dma_buf_size == max_buf_size) 4361 phba->cfg_sg_seg_cnt = (dma_buf_size - 4362 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4363 (2 * sizeof(struct sli4_sge))) / 4364 sizeof(struct sli4_sge); 4365 phba->cfg_sg_dma_buf_size = dma_buf_size; 4366 4367 /* Initialize buffer queue management fields */ 4368 hbq_count = lpfc_sli_hbq_count(); 4369 for (i = 0; i < hbq_count; ++i) 4370 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4371 INIT_LIST_HEAD(&phba->rb_pend_list); 4372 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4373 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4374 4375 /* 4376 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4377 */ 4378 /* Initialize the Abort scsi buffer list used by driver */ 4379 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4380 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4381 /* This abort list used by worker thread */ 4382 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4383 4384 /* 4385 * Initialize driver internal slow-path work queues 4386 */ 4387 4388 /* Driver internel slow-path CQ Event pool */ 4389 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4390 /* Response IOCB work queue list */ 4391 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4392 /* Asynchronous event CQ Event work queue list */ 4393 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4394 /* Fast-path XRI aborted CQ Event work queue list */ 4395 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4396 /* Slow-path XRI aborted CQ Event work queue list */ 4397 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4398 /* Receive queue CQ Event work queue list */ 4399 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4400 4401 /* Initialize extent block lists. */ 4402 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4403 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4404 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4405 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4406 4407 /* Initialize the driver internal SLI layer lists. */ 4408 lpfc_sli_setup(phba); 4409 lpfc_sli_queue_setup(phba); 4410 4411 /* Allocate device driver memory */ 4412 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4413 if (rc) 4414 return -ENOMEM; 4415 4416 /* IF Type 2 ports get initialized now. */ 4417 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4418 LPFC_SLI_INTF_IF_TYPE_2) { 4419 rc = lpfc_pci_function_reset(phba); 4420 if (unlikely(rc)) 4421 return -ENODEV; 4422 } 4423 4424 /* Create the bootstrap mailbox command */ 4425 rc = lpfc_create_bootstrap_mbox(phba); 4426 if (unlikely(rc)) 4427 goto out_free_mem; 4428 4429 /* Set up the host's endian order with the device. */ 4430 rc = lpfc_setup_endian_order(phba); 4431 if (unlikely(rc)) 4432 goto out_free_bsmbx; 4433 4434 /* Set up the hba's configuration parameters. */ 4435 rc = lpfc_sli4_read_config(phba); 4436 if (unlikely(rc)) 4437 goto out_free_bsmbx; 4438 4439 /* IF Type 0 ports get initialized now. */ 4440 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4441 LPFC_SLI_INTF_IF_TYPE_0) { 4442 rc = lpfc_pci_function_reset(phba); 4443 if (unlikely(rc)) 4444 goto out_free_bsmbx; 4445 } 4446 4447 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4448 GFP_KERNEL); 4449 if (!mboxq) { 4450 rc = -ENOMEM; 4451 goto out_free_bsmbx; 4452 } 4453 4454 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4455 lpfc_supported_pages(mboxq); 4456 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4457 if (!rc) { 4458 mqe = &mboxq->u.mqe; 4459 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4460 LPFC_MAX_SUPPORTED_PAGES); 4461 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4462 switch (pn_page[i]) { 4463 case LPFC_SLI4_PARAMETERS: 4464 phba->sli4_hba.pc_sli4_params.supported = 1; 4465 break; 4466 default: 4467 break; 4468 } 4469 } 4470 /* Read the port's SLI4 Parameters capabilities if supported. */ 4471 if (phba->sli4_hba.pc_sli4_params.supported) 4472 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4473 if (rc) { 4474 mempool_free(mboxq, phba->mbox_mem_pool); 4475 rc = -EIO; 4476 goto out_free_bsmbx; 4477 } 4478 } 4479 /* 4480 * Get sli4 parameters that override parameters from Port capabilities. 4481 * If this call fails, it isn't critical unless the SLI4 parameters come 4482 * back in conflict. 4483 */ 4484 rc = lpfc_get_sli4_parameters(phba, mboxq); 4485 if (rc) { 4486 if (phba->sli4_hba.extents_in_use && 4487 phba->sli4_hba.rpi_hdrs_in_use) { 4488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4489 "2999 Unsupported SLI4 Parameters " 4490 "Extents and RPI headers enabled.\n"); 4491 goto out_free_bsmbx; 4492 } 4493 } 4494 mempool_free(mboxq, phba->mbox_mem_pool); 4495 /* Verify all the SLI4 queues */ 4496 rc = lpfc_sli4_queue_verify(phba); 4497 if (rc) 4498 goto out_free_bsmbx; 4499 4500 /* Create driver internal CQE event pool */ 4501 rc = lpfc_sli4_cq_event_pool_create(phba); 4502 if (rc) 4503 goto out_free_bsmbx; 4504 4505 /* Initialize and populate the iocb list per host */ 4506 rc = lpfc_init_sgl_list(phba); 4507 if (rc) { 4508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4509 "1400 Failed to initialize sgl list.\n"); 4510 goto out_destroy_cq_event_pool; 4511 } 4512 rc = lpfc_init_active_sgl_array(phba); 4513 if (rc) { 4514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4515 "1430 Failed to initialize sgl list.\n"); 4516 goto out_free_sgl_list; 4517 } 4518 rc = lpfc_sli4_init_rpi_hdrs(phba); 4519 if (rc) { 4520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4521 "1432 Failed to initialize rpi headers.\n"); 4522 goto out_free_active_sgl; 4523 } 4524 4525 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4526 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4527 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4528 GFP_KERNEL); 4529 if (!phba->fcf.fcf_rr_bmask) { 4530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4531 "2759 Failed allocate memory for FCF round " 4532 "robin failover bmask\n"); 4533 rc = -ENOMEM; 4534 goto out_remove_rpi_hdrs; 4535 } 4536 4537 /* 4538 * The cfg_fcp_eq_count can be zero whenever there is exactly one 4539 * interrupt vector. This is not an error 4540 */ 4541 if (phba->cfg_fcp_eq_count) { 4542 phba->sli4_hba.fcp_eq_hdl = 4543 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4544 phba->cfg_fcp_eq_count), GFP_KERNEL); 4545 if (!phba->sli4_hba.fcp_eq_hdl) { 4546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4547 "2572 Failed allocate memory for " 4548 "fast-path per-EQ handle array\n"); 4549 rc = -ENOMEM; 4550 goto out_free_fcf_rr_bmask; 4551 } 4552 } 4553 4554 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4555 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4556 if (!phba->sli4_hba.msix_entries) { 4557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4558 "2573 Failed allocate memory for msi-x " 4559 "interrupt vector entries\n"); 4560 rc = -ENOMEM; 4561 goto out_free_fcp_eq_hdl; 4562 } 4563 4564 /* 4565 * Enable sr-iov virtual functions if supported and configured 4566 * through the module parameter. 4567 */ 4568 if (phba->cfg_sriov_nr_virtfn > 0) { 4569 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4570 phba->cfg_sriov_nr_virtfn); 4571 if (rc) { 4572 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4573 "3020 Requested number of SR-IOV " 4574 "virtual functions (%d) is not " 4575 "supported\n", 4576 phba->cfg_sriov_nr_virtfn); 4577 phba->cfg_sriov_nr_virtfn = 0; 4578 } 4579 } 4580 4581 return 0; 4582 4583 out_free_fcp_eq_hdl: 4584 kfree(phba->sli4_hba.fcp_eq_hdl); 4585 out_free_fcf_rr_bmask: 4586 kfree(phba->fcf.fcf_rr_bmask); 4587 out_remove_rpi_hdrs: 4588 lpfc_sli4_remove_rpi_hdrs(phba); 4589 out_free_active_sgl: 4590 lpfc_free_active_sgl(phba); 4591 out_free_sgl_list: 4592 lpfc_free_sgl_list(phba); 4593 out_destroy_cq_event_pool: 4594 lpfc_sli4_cq_event_pool_destroy(phba); 4595 out_free_bsmbx: 4596 lpfc_destroy_bootstrap_mbox(phba); 4597 out_free_mem: 4598 lpfc_mem_free(phba); 4599 return rc; 4600 } 4601 4602 /** 4603 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4604 * @phba: pointer to lpfc hba data structure. 4605 * 4606 * This routine is invoked to unset the driver internal resources set up 4607 * specific for supporting the SLI-4 HBA device it attached to. 4608 **/ 4609 static void 4610 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4611 { 4612 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4613 4614 /* Free memory allocated for msi-x interrupt vector entries */ 4615 kfree(phba->sli4_hba.msix_entries); 4616 4617 /* Free memory allocated for fast-path work queue handles */ 4618 kfree(phba->sli4_hba.fcp_eq_hdl); 4619 4620 /* Free the allocated rpi headers. */ 4621 lpfc_sli4_remove_rpi_hdrs(phba); 4622 lpfc_sli4_remove_rpis(phba); 4623 4624 /* Free eligible FCF index bmask */ 4625 kfree(phba->fcf.fcf_rr_bmask); 4626 4627 /* Free the ELS sgl list */ 4628 lpfc_free_active_sgl(phba); 4629 lpfc_free_sgl_list(phba); 4630 4631 /* Free the SCSI sgl management array */ 4632 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4633 4634 /* Free the completion queue EQ event pool */ 4635 lpfc_sli4_cq_event_release_all(phba); 4636 lpfc_sli4_cq_event_pool_destroy(phba); 4637 4638 /* Release resource identifiers. */ 4639 lpfc_sli4_dealloc_resource_identifiers(phba); 4640 4641 /* Free the bsmbx region. */ 4642 lpfc_destroy_bootstrap_mbox(phba); 4643 4644 /* Free the SLI Layer memory with SLI4 HBAs */ 4645 lpfc_mem_free_all(phba); 4646 4647 /* Free the current connect table */ 4648 list_for_each_entry_safe(conn_entry, next_conn_entry, 4649 &phba->fcf_conn_rec_list, list) { 4650 list_del_init(&conn_entry->list); 4651 kfree(conn_entry); 4652 } 4653 4654 return; 4655 } 4656 4657 /** 4658 * lpfc_init_api_table_setup - Set up init api function jump table 4659 * @phba: The hba struct for which this call is being executed. 4660 * @dev_grp: The HBA PCI-Device group number. 4661 * 4662 * This routine sets up the device INIT interface API function jump table 4663 * in @phba struct. 4664 * 4665 * Returns: 0 - success, -ENODEV - failure. 4666 **/ 4667 int 4668 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4669 { 4670 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4671 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4672 phba->lpfc_selective_reset = lpfc_selective_reset; 4673 switch (dev_grp) { 4674 case LPFC_PCI_DEV_LP: 4675 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4676 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4677 phba->lpfc_stop_port = lpfc_stop_port_s3; 4678 break; 4679 case LPFC_PCI_DEV_OC: 4680 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4681 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4682 phba->lpfc_stop_port = lpfc_stop_port_s4; 4683 break; 4684 default: 4685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4686 "1431 Invalid HBA PCI-device group: 0x%x\n", 4687 dev_grp); 4688 return -ENODEV; 4689 break; 4690 } 4691 return 0; 4692 } 4693 4694 /** 4695 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4696 * @phba: pointer to lpfc hba data structure. 4697 * 4698 * This routine is invoked to set up the driver internal resources before the 4699 * device specific resource setup to support the HBA device it attached to. 4700 * 4701 * Return codes 4702 * 0 - successful 4703 * other values - error 4704 **/ 4705 static int 4706 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4707 { 4708 /* 4709 * Driver resources common to all SLI revisions 4710 */ 4711 atomic_set(&phba->fast_event_count, 0); 4712 spin_lock_init(&phba->hbalock); 4713 4714 /* Initialize ndlp management spinlock */ 4715 spin_lock_init(&phba->ndlp_lock); 4716 4717 INIT_LIST_HEAD(&phba->port_list); 4718 INIT_LIST_HEAD(&phba->work_list); 4719 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4720 4721 /* Initialize the wait queue head for the kernel thread */ 4722 init_waitqueue_head(&phba->work_waitq); 4723 4724 /* Initialize the scsi buffer list used by driver for scsi IO */ 4725 spin_lock_init(&phba->scsi_buf_list_lock); 4726 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4727 4728 /* Initialize the fabric iocb list */ 4729 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4730 4731 /* Initialize list to save ELS buffers */ 4732 INIT_LIST_HEAD(&phba->elsbuf); 4733 4734 /* Initialize FCF connection rec list */ 4735 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4736 4737 return 0; 4738 } 4739 4740 /** 4741 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4742 * @phba: pointer to lpfc hba data structure. 4743 * 4744 * This routine is invoked to set up the driver internal resources after the 4745 * device specific resource setup to support the HBA device it attached to. 4746 * 4747 * Return codes 4748 * 0 - successful 4749 * other values - error 4750 **/ 4751 static int 4752 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4753 { 4754 int error; 4755 4756 /* Startup the kernel thread for this host adapter. */ 4757 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4758 "lpfc_worker_%d", phba->brd_no); 4759 if (IS_ERR(phba->worker_thread)) { 4760 error = PTR_ERR(phba->worker_thread); 4761 return error; 4762 } 4763 4764 return 0; 4765 } 4766 4767 /** 4768 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4769 * @phba: pointer to lpfc hba data structure. 4770 * 4771 * This routine is invoked to unset the driver internal resources set up after 4772 * the device specific resource setup for supporting the HBA device it 4773 * attached to. 4774 **/ 4775 static void 4776 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4777 { 4778 /* Stop kernel worker thread */ 4779 kthread_stop(phba->worker_thread); 4780 } 4781 4782 /** 4783 * lpfc_free_iocb_list - Free iocb list. 4784 * @phba: pointer to lpfc hba data structure. 4785 * 4786 * This routine is invoked to free the driver's IOCB list and memory. 4787 **/ 4788 static void 4789 lpfc_free_iocb_list(struct lpfc_hba *phba) 4790 { 4791 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4792 4793 spin_lock_irq(&phba->hbalock); 4794 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4795 &phba->lpfc_iocb_list, list) { 4796 list_del(&iocbq_entry->list); 4797 kfree(iocbq_entry); 4798 phba->total_iocbq_bufs--; 4799 } 4800 spin_unlock_irq(&phba->hbalock); 4801 4802 return; 4803 } 4804 4805 /** 4806 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4807 * @phba: pointer to lpfc hba data structure. 4808 * 4809 * This routine is invoked to allocate and initizlize the driver's IOCB 4810 * list and set up the IOCB tag array accordingly. 4811 * 4812 * Return codes 4813 * 0 - successful 4814 * other values - error 4815 **/ 4816 static int 4817 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4818 { 4819 struct lpfc_iocbq *iocbq_entry = NULL; 4820 uint16_t iotag; 4821 int i; 4822 4823 /* Initialize and populate the iocb list per host. */ 4824 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4825 for (i = 0; i < iocb_count; i++) { 4826 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4827 if (iocbq_entry == NULL) { 4828 printk(KERN_ERR "%s: only allocated %d iocbs of " 4829 "expected %d count. Unloading driver.\n", 4830 __func__, i, LPFC_IOCB_LIST_CNT); 4831 goto out_free_iocbq; 4832 } 4833 4834 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4835 if (iotag == 0) { 4836 kfree(iocbq_entry); 4837 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4838 "Unloading driver.\n", __func__); 4839 goto out_free_iocbq; 4840 } 4841 iocbq_entry->sli4_lxritag = NO_XRI; 4842 iocbq_entry->sli4_xritag = NO_XRI; 4843 4844 spin_lock_irq(&phba->hbalock); 4845 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4846 phba->total_iocbq_bufs++; 4847 spin_unlock_irq(&phba->hbalock); 4848 } 4849 4850 return 0; 4851 4852 out_free_iocbq: 4853 lpfc_free_iocb_list(phba); 4854 4855 return -ENOMEM; 4856 } 4857 4858 /** 4859 * lpfc_free_sgl_list - Free sgl list. 4860 * @phba: pointer to lpfc hba data structure. 4861 * 4862 * This routine is invoked to free the driver's sgl list and memory. 4863 **/ 4864 static void 4865 lpfc_free_sgl_list(struct lpfc_hba *phba) 4866 { 4867 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 4868 LIST_HEAD(sglq_list); 4869 4870 spin_lock_irq(&phba->hbalock); 4871 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 4872 spin_unlock_irq(&phba->hbalock); 4873 4874 list_for_each_entry_safe(sglq_entry, sglq_next, 4875 &sglq_list, list) { 4876 list_del(&sglq_entry->list); 4877 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 4878 kfree(sglq_entry); 4879 phba->sli4_hba.total_sglq_bufs--; 4880 } 4881 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4882 } 4883 4884 /** 4885 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 4886 * @phba: pointer to lpfc hba data structure. 4887 * 4888 * This routine is invoked to allocate the driver's active sgl memory. 4889 * This array will hold the sglq_entry's for active IOs. 4890 **/ 4891 static int 4892 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 4893 { 4894 int size; 4895 size = sizeof(struct lpfc_sglq *); 4896 size *= phba->sli4_hba.max_cfg_param.max_xri; 4897 4898 phba->sli4_hba.lpfc_sglq_active_list = 4899 kzalloc(size, GFP_KERNEL); 4900 if (!phba->sli4_hba.lpfc_sglq_active_list) 4901 return -ENOMEM; 4902 return 0; 4903 } 4904 4905 /** 4906 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 4907 * @phba: pointer to lpfc hba data structure. 4908 * 4909 * This routine is invoked to walk through the array of active sglq entries 4910 * and free all of the resources. 4911 * This is just a place holder for now. 4912 **/ 4913 static void 4914 lpfc_free_active_sgl(struct lpfc_hba *phba) 4915 { 4916 kfree(phba->sli4_hba.lpfc_sglq_active_list); 4917 } 4918 4919 /** 4920 * lpfc_init_sgl_list - Allocate and initialize sgl list. 4921 * @phba: pointer to lpfc hba data structure. 4922 * 4923 * This routine is invoked to allocate and initizlize the driver's sgl 4924 * list and set up the sgl xritag tag array accordingly. 4925 * 4926 * Return codes 4927 * 0 - successful 4928 * other values - error 4929 **/ 4930 static int 4931 lpfc_init_sgl_list(struct lpfc_hba *phba) 4932 { 4933 struct lpfc_sglq *sglq_entry = NULL; 4934 int i; 4935 int els_xri_cnt; 4936 4937 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 4938 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4939 "2400 ELS XRI count %d.\n", 4940 els_xri_cnt); 4941 /* Initialize and populate the sglq list per host/VF. */ 4942 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 4943 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 4944 4945 /* Sanity check on XRI management */ 4946 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 4947 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4948 "2562 No room left for SCSI XRI allocation: " 4949 "max_xri=%d, els_xri=%d\n", 4950 phba->sli4_hba.max_cfg_param.max_xri, 4951 els_xri_cnt); 4952 return -ENOMEM; 4953 } 4954 4955 /* Allocate memory for the ELS XRI management array */ 4956 phba->sli4_hba.lpfc_els_sgl_array = 4957 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 4958 GFP_KERNEL); 4959 4960 if (!phba->sli4_hba.lpfc_els_sgl_array) { 4961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4962 "2401 Failed to allocate memory for ELS " 4963 "XRI management array of size %d.\n", 4964 els_xri_cnt); 4965 return -ENOMEM; 4966 } 4967 4968 /* Keep the SCSI XRI into the XRI management array */ 4969 phba->sli4_hba.scsi_xri_max = 4970 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 4971 phba->sli4_hba.scsi_xri_cnt = 0; 4972 phba->sli4_hba.lpfc_scsi_psb_array = 4973 kzalloc((sizeof(struct lpfc_scsi_buf *) * 4974 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 4975 4976 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 4977 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4978 "2563 Failed to allocate memory for SCSI " 4979 "XRI management array of size %d.\n", 4980 phba->sli4_hba.scsi_xri_max); 4981 kfree(phba->sli4_hba.lpfc_els_sgl_array); 4982 return -ENOMEM; 4983 } 4984 4985 for (i = 0; i < els_xri_cnt; i++) { 4986 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 4987 if (sglq_entry == NULL) { 4988 printk(KERN_ERR "%s: only allocated %d sgls of " 4989 "expected %d count. Unloading driver.\n", 4990 __func__, i, els_xri_cnt); 4991 goto out_free_mem; 4992 } 4993 4994 sglq_entry->buff_type = GEN_BUFF_TYPE; 4995 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 4996 if (sglq_entry->virt == NULL) { 4997 kfree(sglq_entry); 4998 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 4999 "Unloading driver.\n", __func__); 5000 goto out_free_mem; 5001 } 5002 sglq_entry->sgl = sglq_entry->virt; 5003 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 5004 5005 /* The list order is used by later block SGL registraton */ 5006 spin_lock_irq(&phba->hbalock); 5007 sglq_entry->state = SGL_FREED; 5008 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 5009 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 5010 phba->sli4_hba.total_sglq_bufs++; 5011 spin_unlock_irq(&phba->hbalock); 5012 } 5013 return 0; 5014 5015 out_free_mem: 5016 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 5017 lpfc_free_sgl_list(phba); 5018 return -ENOMEM; 5019 } 5020 5021 /** 5022 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5023 * @phba: pointer to lpfc hba data structure. 5024 * 5025 * This routine is invoked to post rpi header templates to the 5026 * port for those SLI4 ports that do not support extents. This routine 5027 * posts a PAGE_SIZE memory region to the port to hold up to 5028 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5029 * and should be called only when interrupts are disabled. 5030 * 5031 * Return codes 5032 * 0 - successful 5033 * -ERROR - otherwise. 5034 **/ 5035 int 5036 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5037 { 5038 int rc = 0; 5039 struct lpfc_rpi_hdr *rpi_hdr; 5040 5041 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5042 /* 5043 * If the SLI4 port supports extents, posting the rpi header isn't 5044 * required. Set the expected maximum count and let the actual value 5045 * get set when extents are fully allocated. 5046 */ 5047 if (!phba->sli4_hba.rpi_hdrs_in_use) { 5048 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi; 5049 return rc; 5050 } 5051 if (phba->sli4_hba.extents_in_use) 5052 return -EIO; 5053 5054 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5055 if (!rpi_hdr) { 5056 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5057 "0391 Error during rpi post operation\n"); 5058 lpfc_sli4_remove_rpis(phba); 5059 rc = -ENODEV; 5060 } 5061 5062 return rc; 5063 } 5064 5065 /** 5066 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5067 * @phba: pointer to lpfc hba data structure. 5068 * 5069 * This routine is invoked to allocate a single 4KB memory region to 5070 * support rpis and stores them in the phba. This single region 5071 * provides support for up to 64 rpis. The region is used globally 5072 * by the device. 5073 * 5074 * Returns: 5075 * A valid rpi hdr on success. 5076 * A NULL pointer on any failure. 5077 **/ 5078 struct lpfc_rpi_hdr * 5079 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5080 { 5081 uint16_t rpi_limit, curr_rpi_range; 5082 struct lpfc_dmabuf *dmabuf; 5083 struct lpfc_rpi_hdr *rpi_hdr; 5084 uint32_t rpi_count; 5085 5086 /* 5087 * If the SLI4 port supports extents, posting the rpi header isn't 5088 * required. Set the expected maximum count and let the actual value 5089 * get set when extents are fully allocated. 5090 */ 5091 if (!phba->sli4_hba.rpi_hdrs_in_use) 5092 return NULL; 5093 if (phba->sli4_hba.extents_in_use) 5094 return NULL; 5095 5096 /* The limit on the logical index is just the max_rpi count. */ 5097 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5098 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5099 5100 spin_lock_irq(&phba->hbalock); 5101 /* 5102 * Establish the starting RPI in this header block. The starting 5103 * rpi is normalized to a zero base because the physical rpi is 5104 * port based. 5105 */ 5106 curr_rpi_range = phba->sli4_hba.next_rpi - 5107 phba->sli4_hba.max_cfg_param.rpi_base; 5108 spin_unlock_irq(&phba->hbalock); 5109 5110 /* 5111 * The port has a limited number of rpis. The increment here 5112 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5113 * and to allow the full max_rpi range per port. 5114 */ 5115 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5116 rpi_count = rpi_limit - curr_rpi_range; 5117 else 5118 rpi_count = LPFC_RPI_HDR_COUNT; 5119 5120 if (!rpi_count) 5121 return NULL; 5122 /* 5123 * First allocate the protocol header region for the port. The 5124 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5125 */ 5126 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5127 if (!dmabuf) 5128 return NULL; 5129 5130 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5131 LPFC_HDR_TEMPLATE_SIZE, 5132 &dmabuf->phys, 5133 GFP_KERNEL); 5134 if (!dmabuf->virt) { 5135 rpi_hdr = NULL; 5136 goto err_free_dmabuf; 5137 } 5138 5139 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5140 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5141 rpi_hdr = NULL; 5142 goto err_free_coherent; 5143 } 5144 5145 /* Save the rpi header data for cleanup later. */ 5146 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5147 if (!rpi_hdr) 5148 goto err_free_coherent; 5149 5150 rpi_hdr->dmabuf = dmabuf; 5151 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5152 rpi_hdr->page_count = 1; 5153 spin_lock_irq(&phba->hbalock); 5154 5155 /* The rpi_hdr stores the logical index only. */ 5156 rpi_hdr->start_rpi = curr_rpi_range; 5157 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5158 5159 /* 5160 * The next_rpi stores the next logical module-64 rpi value used 5161 * to post physical rpis in subsequent rpi postings. 5162 */ 5163 phba->sli4_hba.next_rpi += rpi_count; 5164 spin_unlock_irq(&phba->hbalock); 5165 return rpi_hdr; 5166 5167 err_free_coherent: 5168 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5169 dmabuf->virt, dmabuf->phys); 5170 err_free_dmabuf: 5171 kfree(dmabuf); 5172 return NULL; 5173 } 5174 5175 /** 5176 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5177 * @phba: pointer to lpfc hba data structure. 5178 * 5179 * This routine is invoked to remove all memory resources allocated 5180 * to support rpis for SLI4 ports not supporting extents. This routine 5181 * presumes the caller has released all rpis consumed by fabric or port 5182 * logins and is prepared to have the header pages removed. 5183 **/ 5184 void 5185 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5186 { 5187 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5188 5189 if (!phba->sli4_hba.rpi_hdrs_in_use) 5190 goto exit; 5191 5192 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5193 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5194 list_del(&rpi_hdr->list); 5195 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5196 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5197 kfree(rpi_hdr->dmabuf); 5198 kfree(rpi_hdr); 5199 } 5200 exit: 5201 /* There are no rpis available to the port now. */ 5202 phba->sli4_hba.next_rpi = 0; 5203 } 5204 5205 /** 5206 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5207 * @pdev: pointer to pci device data structure. 5208 * 5209 * This routine is invoked to allocate the driver hba data structure for an 5210 * HBA device. If the allocation is successful, the phba reference to the 5211 * PCI device data structure is set. 5212 * 5213 * Return codes 5214 * pointer to @phba - successful 5215 * NULL - error 5216 **/ 5217 static struct lpfc_hba * 5218 lpfc_hba_alloc(struct pci_dev *pdev) 5219 { 5220 struct lpfc_hba *phba; 5221 5222 /* Allocate memory for HBA structure */ 5223 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5224 if (!phba) { 5225 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5226 return NULL; 5227 } 5228 5229 /* Set reference to PCI device in HBA structure */ 5230 phba->pcidev = pdev; 5231 5232 /* Assign an unused board number */ 5233 phba->brd_no = lpfc_get_instance(); 5234 if (phba->brd_no < 0) { 5235 kfree(phba); 5236 return NULL; 5237 } 5238 5239 spin_lock_init(&phba->ct_ev_lock); 5240 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5241 5242 return phba; 5243 } 5244 5245 /** 5246 * lpfc_hba_free - Free driver hba data structure with a device. 5247 * @phba: pointer to lpfc hba data structure. 5248 * 5249 * This routine is invoked to free the driver hba data structure with an 5250 * HBA device. 5251 **/ 5252 static void 5253 lpfc_hba_free(struct lpfc_hba *phba) 5254 { 5255 /* Release the driver assigned board number */ 5256 idr_remove(&lpfc_hba_index, phba->brd_no); 5257 5258 kfree(phba); 5259 return; 5260 } 5261 5262 /** 5263 * lpfc_create_shost - Create hba physical port with associated scsi host. 5264 * @phba: pointer to lpfc hba data structure. 5265 * 5266 * This routine is invoked to create HBA physical port and associate a SCSI 5267 * host with it. 5268 * 5269 * Return codes 5270 * 0 - successful 5271 * other values - error 5272 **/ 5273 static int 5274 lpfc_create_shost(struct lpfc_hba *phba) 5275 { 5276 struct lpfc_vport *vport; 5277 struct Scsi_Host *shost; 5278 5279 /* Initialize HBA FC structure */ 5280 phba->fc_edtov = FF_DEF_EDTOV; 5281 phba->fc_ratov = FF_DEF_RATOV; 5282 phba->fc_altov = FF_DEF_ALTOV; 5283 phba->fc_arbtov = FF_DEF_ARBTOV; 5284 5285 atomic_set(&phba->sdev_cnt, 0); 5286 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5287 if (!vport) 5288 return -ENODEV; 5289 5290 shost = lpfc_shost_from_vport(vport); 5291 phba->pport = vport; 5292 lpfc_debugfs_initialize(vport); 5293 /* Put reference to SCSI host to driver's device private data */ 5294 pci_set_drvdata(phba->pcidev, shost); 5295 5296 return 0; 5297 } 5298 5299 /** 5300 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5301 * @phba: pointer to lpfc hba data structure. 5302 * 5303 * This routine is invoked to destroy HBA physical port and the associated 5304 * SCSI host. 5305 **/ 5306 static void 5307 lpfc_destroy_shost(struct lpfc_hba *phba) 5308 { 5309 struct lpfc_vport *vport = phba->pport; 5310 5311 /* Destroy physical port that associated with the SCSI host */ 5312 destroy_port(vport); 5313 5314 return; 5315 } 5316 5317 /** 5318 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5319 * @phba: pointer to lpfc hba data structure. 5320 * @shost: the shost to be used to detect Block guard settings. 5321 * 5322 * This routine sets up the local Block guard protocol settings for @shost. 5323 * This routine also allocates memory for debugging bg buffers. 5324 **/ 5325 static void 5326 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5327 { 5328 int pagecnt = 10; 5329 if (lpfc_prot_mask && lpfc_prot_guard) { 5330 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5331 "1478 Registering BlockGuard with the " 5332 "SCSI layer\n"); 5333 scsi_host_set_prot(shost, lpfc_prot_mask); 5334 scsi_host_set_guard(shost, lpfc_prot_guard); 5335 } 5336 if (!_dump_buf_data) { 5337 while (pagecnt) { 5338 spin_lock_init(&_dump_buf_lock); 5339 _dump_buf_data = 5340 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5341 if (_dump_buf_data) { 5342 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5343 "9043 BLKGRD: allocated %d pages for " 5344 "_dump_buf_data at 0x%p\n", 5345 (1 << pagecnt), _dump_buf_data); 5346 _dump_buf_data_order = pagecnt; 5347 memset(_dump_buf_data, 0, 5348 ((1 << PAGE_SHIFT) << pagecnt)); 5349 break; 5350 } else 5351 --pagecnt; 5352 } 5353 if (!_dump_buf_data_order) 5354 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5355 "9044 BLKGRD: ERROR unable to allocate " 5356 "memory for hexdump\n"); 5357 } else 5358 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5359 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5360 "\n", _dump_buf_data); 5361 if (!_dump_buf_dif) { 5362 while (pagecnt) { 5363 _dump_buf_dif = 5364 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5365 if (_dump_buf_dif) { 5366 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5367 "9046 BLKGRD: allocated %d pages for " 5368 "_dump_buf_dif at 0x%p\n", 5369 (1 << pagecnt), _dump_buf_dif); 5370 _dump_buf_dif_order = pagecnt; 5371 memset(_dump_buf_dif, 0, 5372 ((1 << PAGE_SHIFT) << pagecnt)); 5373 break; 5374 } else 5375 --pagecnt; 5376 } 5377 if (!_dump_buf_dif_order) 5378 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5379 "9047 BLKGRD: ERROR unable to allocate " 5380 "memory for hexdump\n"); 5381 } else 5382 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5383 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5384 _dump_buf_dif); 5385 } 5386 5387 /** 5388 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5389 * @phba: pointer to lpfc hba data structure. 5390 * 5391 * This routine is invoked to perform all the necessary post initialization 5392 * setup for the device. 5393 **/ 5394 static void 5395 lpfc_post_init_setup(struct lpfc_hba *phba) 5396 { 5397 struct Scsi_Host *shost; 5398 struct lpfc_adapter_event_header adapter_event; 5399 5400 /* Get the default values for Model Name and Description */ 5401 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5402 5403 /* 5404 * hba setup may have changed the hba_queue_depth so we need to 5405 * adjust the value of can_queue. 5406 */ 5407 shost = pci_get_drvdata(phba->pcidev); 5408 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5409 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5410 lpfc_setup_bg(phba, shost); 5411 5412 lpfc_host_attrib_init(shost); 5413 5414 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5415 spin_lock_irq(shost->host_lock); 5416 lpfc_poll_start_timer(phba); 5417 spin_unlock_irq(shost->host_lock); 5418 } 5419 5420 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5421 "0428 Perform SCSI scan\n"); 5422 /* Send board arrival event to upper layer */ 5423 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5424 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5425 fc_host_post_vendor_event(shost, fc_get_event_number(), 5426 sizeof(adapter_event), 5427 (char *) &adapter_event, 5428 LPFC_NL_VENDOR_ID); 5429 return; 5430 } 5431 5432 /** 5433 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5434 * @phba: pointer to lpfc hba data structure. 5435 * 5436 * This routine is invoked to set up the PCI device memory space for device 5437 * with SLI-3 interface spec. 5438 * 5439 * Return codes 5440 * 0 - successful 5441 * other values - error 5442 **/ 5443 static int 5444 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5445 { 5446 struct pci_dev *pdev; 5447 unsigned long bar0map_len, bar2map_len; 5448 int i, hbq_count; 5449 void *ptr; 5450 int error = -ENODEV; 5451 5452 /* Obtain PCI device reference */ 5453 if (!phba->pcidev) 5454 return error; 5455 else 5456 pdev = phba->pcidev; 5457 5458 /* Set the device DMA mask size */ 5459 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5460 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5461 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5462 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5463 return error; 5464 } 5465 } 5466 5467 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5468 * required by each mapping. 5469 */ 5470 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5471 bar0map_len = pci_resource_len(pdev, 0); 5472 5473 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5474 bar2map_len = pci_resource_len(pdev, 2); 5475 5476 /* Map HBA SLIM to a kernel virtual address. */ 5477 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5478 if (!phba->slim_memmap_p) { 5479 dev_printk(KERN_ERR, &pdev->dev, 5480 "ioremap failed for SLIM memory.\n"); 5481 goto out; 5482 } 5483 5484 /* Map HBA Control Registers to a kernel virtual address. */ 5485 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5486 if (!phba->ctrl_regs_memmap_p) { 5487 dev_printk(KERN_ERR, &pdev->dev, 5488 "ioremap failed for HBA control registers.\n"); 5489 goto out_iounmap_slim; 5490 } 5491 5492 /* Allocate memory for SLI-2 structures */ 5493 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5494 SLI2_SLIM_SIZE, 5495 &phba->slim2p.phys, 5496 GFP_KERNEL); 5497 if (!phba->slim2p.virt) 5498 goto out_iounmap; 5499 5500 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5501 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5502 phba->mbox_ext = (phba->slim2p.virt + 5503 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5504 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5505 phba->IOCBs = (phba->slim2p.virt + 5506 offsetof(struct lpfc_sli2_slim, IOCBs)); 5507 5508 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5509 lpfc_sli_hbq_size(), 5510 &phba->hbqslimp.phys, 5511 GFP_KERNEL); 5512 if (!phba->hbqslimp.virt) 5513 goto out_free_slim; 5514 5515 hbq_count = lpfc_sli_hbq_count(); 5516 ptr = phba->hbqslimp.virt; 5517 for (i = 0; i < hbq_count; ++i) { 5518 phba->hbqs[i].hbq_virt = ptr; 5519 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5520 ptr += (lpfc_hbq_defs[i]->entry_count * 5521 sizeof(struct lpfc_hbq_entry)); 5522 } 5523 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5524 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5525 5526 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5527 5528 INIT_LIST_HEAD(&phba->rb_pend_list); 5529 5530 phba->MBslimaddr = phba->slim_memmap_p; 5531 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5532 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5533 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5534 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5535 5536 return 0; 5537 5538 out_free_slim: 5539 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5540 phba->slim2p.virt, phba->slim2p.phys); 5541 out_iounmap: 5542 iounmap(phba->ctrl_regs_memmap_p); 5543 out_iounmap_slim: 5544 iounmap(phba->slim_memmap_p); 5545 out: 5546 return error; 5547 } 5548 5549 /** 5550 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5551 * @phba: pointer to lpfc hba data structure. 5552 * 5553 * This routine is invoked to unset the PCI device memory space for device 5554 * with SLI-3 interface spec. 5555 **/ 5556 static void 5557 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5558 { 5559 struct pci_dev *pdev; 5560 5561 /* Obtain PCI device reference */ 5562 if (!phba->pcidev) 5563 return; 5564 else 5565 pdev = phba->pcidev; 5566 5567 /* Free coherent DMA memory allocated */ 5568 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5569 phba->hbqslimp.virt, phba->hbqslimp.phys); 5570 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5571 phba->slim2p.virt, phba->slim2p.phys); 5572 5573 /* I/O memory unmap */ 5574 iounmap(phba->ctrl_regs_memmap_p); 5575 iounmap(phba->slim_memmap_p); 5576 5577 return; 5578 } 5579 5580 /** 5581 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5582 * @phba: pointer to lpfc hba data structure. 5583 * 5584 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5585 * done and check status. 5586 * 5587 * Return 0 if successful, otherwise -ENODEV. 5588 **/ 5589 int 5590 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5591 { 5592 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5593 struct lpfc_register reg_data; 5594 int i, port_error = 0; 5595 uint32_t if_type; 5596 5597 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5598 memset(®_data, 0, sizeof(reg_data)); 5599 if (!phba->sli4_hba.PSMPHRregaddr) 5600 return -ENODEV; 5601 5602 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5603 for (i = 0; i < 3000; i++) { 5604 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5605 &portsmphr_reg.word0) || 5606 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5607 /* Port has a fatal POST error, break out */ 5608 port_error = -ENODEV; 5609 break; 5610 } 5611 if (LPFC_POST_STAGE_PORT_READY == 5612 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5613 break; 5614 msleep(10); 5615 } 5616 5617 /* 5618 * If there was a port error during POST, then don't proceed with 5619 * other register reads as the data may not be valid. Just exit. 5620 */ 5621 if (port_error) { 5622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5623 "1408 Port Failed POST - portsmphr=0x%x, " 5624 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5625 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5626 portsmphr_reg.word0, 5627 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5628 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5629 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5630 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5631 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5632 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5633 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5634 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5635 } else { 5636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5637 "2534 Device Info: SLIFamily=0x%x, " 5638 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5639 "SLIHint_2=0x%x, FT=0x%x\n", 5640 bf_get(lpfc_sli_intf_sli_family, 5641 &phba->sli4_hba.sli_intf), 5642 bf_get(lpfc_sli_intf_slirev, 5643 &phba->sli4_hba.sli_intf), 5644 bf_get(lpfc_sli_intf_if_type, 5645 &phba->sli4_hba.sli_intf), 5646 bf_get(lpfc_sli_intf_sli_hint1, 5647 &phba->sli4_hba.sli_intf), 5648 bf_get(lpfc_sli_intf_sli_hint2, 5649 &phba->sli4_hba.sli_intf), 5650 bf_get(lpfc_sli_intf_func_type, 5651 &phba->sli4_hba.sli_intf)); 5652 /* 5653 * Check for other Port errors during the initialization 5654 * process. Fail the load if the port did not come up 5655 * correctly. 5656 */ 5657 if_type = bf_get(lpfc_sli_intf_if_type, 5658 &phba->sli4_hba.sli_intf); 5659 switch (if_type) { 5660 case LPFC_SLI_INTF_IF_TYPE_0: 5661 phba->sli4_hba.ue_mask_lo = 5662 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5663 phba->sli4_hba.ue_mask_hi = 5664 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5665 uerrlo_reg.word0 = 5666 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5667 uerrhi_reg.word0 = 5668 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5669 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5670 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5672 "1422 Unrecoverable Error " 5673 "Detected during POST " 5674 "uerr_lo_reg=0x%x, " 5675 "uerr_hi_reg=0x%x, " 5676 "ue_mask_lo_reg=0x%x, " 5677 "ue_mask_hi_reg=0x%x\n", 5678 uerrlo_reg.word0, 5679 uerrhi_reg.word0, 5680 phba->sli4_hba.ue_mask_lo, 5681 phba->sli4_hba.ue_mask_hi); 5682 port_error = -ENODEV; 5683 } 5684 break; 5685 case LPFC_SLI_INTF_IF_TYPE_2: 5686 /* Final checks. The port status should be clean. */ 5687 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5688 ®_data.word0) || 5689 (bf_get(lpfc_sliport_status_err, ®_data) && 5690 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5691 phba->work_status[0] = 5692 readl(phba->sli4_hba.u.if_type2. 5693 ERR1regaddr); 5694 phba->work_status[1] = 5695 readl(phba->sli4_hba.u.if_type2. 5696 ERR2regaddr); 5697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5698 "2888 Port Error Detected " 5699 "during POST: " 5700 "port status reg 0x%x, " 5701 "port_smphr reg 0x%x, " 5702 "error 1=0x%x, error 2=0x%x\n", 5703 reg_data.word0, 5704 portsmphr_reg.word0, 5705 phba->work_status[0], 5706 phba->work_status[1]); 5707 port_error = -ENODEV; 5708 } 5709 break; 5710 case LPFC_SLI_INTF_IF_TYPE_1: 5711 default: 5712 break; 5713 } 5714 } 5715 return port_error; 5716 } 5717 5718 /** 5719 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5720 * @phba: pointer to lpfc hba data structure. 5721 * @if_type: The SLI4 interface type getting configured. 5722 * 5723 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5724 * memory map. 5725 **/ 5726 static void 5727 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5728 { 5729 switch (if_type) { 5730 case LPFC_SLI_INTF_IF_TYPE_0: 5731 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5732 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5733 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5734 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5735 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5736 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5737 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5738 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5739 phba->sli4_hba.SLIINTFregaddr = 5740 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5741 break; 5742 case LPFC_SLI_INTF_IF_TYPE_2: 5743 phba->sli4_hba.u.if_type2.ERR1regaddr = 5744 phba->sli4_hba.conf_regs_memmap_p + 5745 LPFC_CTL_PORT_ER1_OFFSET; 5746 phba->sli4_hba.u.if_type2.ERR2regaddr = 5747 phba->sli4_hba.conf_regs_memmap_p + 5748 LPFC_CTL_PORT_ER2_OFFSET; 5749 phba->sli4_hba.u.if_type2.CTRLregaddr = 5750 phba->sli4_hba.conf_regs_memmap_p + 5751 LPFC_CTL_PORT_CTL_OFFSET; 5752 phba->sli4_hba.u.if_type2.STATUSregaddr = 5753 phba->sli4_hba.conf_regs_memmap_p + 5754 LPFC_CTL_PORT_STA_OFFSET; 5755 phba->sli4_hba.SLIINTFregaddr = 5756 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5757 phba->sli4_hba.PSMPHRregaddr = 5758 phba->sli4_hba.conf_regs_memmap_p + 5759 LPFC_CTL_PORT_SEM_OFFSET; 5760 phba->sli4_hba.RQDBregaddr = 5761 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5762 phba->sli4_hba.WQDBregaddr = 5763 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5764 phba->sli4_hba.EQCQDBregaddr = 5765 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5766 phba->sli4_hba.MQDBregaddr = 5767 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5768 phba->sli4_hba.BMBXregaddr = 5769 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5770 break; 5771 case LPFC_SLI_INTF_IF_TYPE_1: 5772 default: 5773 dev_printk(KERN_ERR, &phba->pcidev->dev, 5774 "FATAL - unsupported SLI4 interface type - %d\n", 5775 if_type); 5776 break; 5777 } 5778 } 5779 5780 /** 5781 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5782 * @phba: pointer to lpfc hba data structure. 5783 * 5784 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5785 * memory map. 5786 **/ 5787 static void 5788 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5789 { 5790 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5791 LPFC_SLIPORT_IF0_SMPHR; 5792 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5793 LPFC_HST_ISR0; 5794 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5795 LPFC_HST_IMR0; 5796 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5797 LPFC_HST_ISCR0; 5798 } 5799 5800 /** 5801 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5802 * @phba: pointer to lpfc hba data structure. 5803 * @vf: virtual function number 5804 * 5805 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5806 * based on the given viftual function number, @vf. 5807 * 5808 * Return 0 if successful, otherwise -ENODEV. 5809 **/ 5810 static int 5811 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5812 { 5813 if (vf > LPFC_VIR_FUNC_MAX) 5814 return -ENODEV; 5815 5816 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5817 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5818 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5819 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5820 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5821 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5822 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5823 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5824 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5825 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5826 return 0; 5827 } 5828 5829 /** 5830 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5831 * @phba: pointer to lpfc hba data structure. 5832 * 5833 * This routine is invoked to create the bootstrap mailbox 5834 * region consistent with the SLI-4 interface spec. This 5835 * routine allocates all memory necessary to communicate 5836 * mailbox commands to the port and sets up all alignment 5837 * needs. No locks are expected to be held when calling 5838 * this routine. 5839 * 5840 * Return codes 5841 * 0 - successful 5842 * -ENOMEM - could not allocated memory. 5843 **/ 5844 static int 5845 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5846 { 5847 uint32_t bmbx_size; 5848 struct lpfc_dmabuf *dmabuf; 5849 struct dma_address *dma_address; 5850 uint32_t pa_addr; 5851 uint64_t phys_addr; 5852 5853 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5854 if (!dmabuf) 5855 return -ENOMEM; 5856 5857 /* 5858 * The bootstrap mailbox region is comprised of 2 parts 5859 * plus an alignment restriction of 16 bytes. 5860 */ 5861 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5862 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5863 bmbx_size, 5864 &dmabuf->phys, 5865 GFP_KERNEL); 5866 if (!dmabuf->virt) { 5867 kfree(dmabuf); 5868 return -ENOMEM; 5869 } 5870 memset(dmabuf->virt, 0, bmbx_size); 5871 5872 /* 5873 * Initialize the bootstrap mailbox pointers now so that the register 5874 * operations are simple later. The mailbox dma address is required 5875 * to be 16-byte aligned. Also align the virtual memory as each 5876 * maibox is copied into the bmbx mailbox region before issuing the 5877 * command to the port. 5878 */ 5879 phba->sli4_hba.bmbx.dmabuf = dmabuf; 5880 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 5881 5882 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 5883 LPFC_ALIGN_16_BYTE); 5884 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 5885 LPFC_ALIGN_16_BYTE); 5886 5887 /* 5888 * Set the high and low physical addresses now. The SLI4 alignment 5889 * requirement is 16 bytes and the mailbox is posted to the port 5890 * as two 30-bit addresses. The other data is a bit marking whether 5891 * the 30-bit address is the high or low address. 5892 * Upcast bmbx aphys to 64bits so shift instruction compiles 5893 * clean on 32 bit machines. 5894 */ 5895 dma_address = &phba->sli4_hba.bmbx.dma_address; 5896 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 5897 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 5898 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 5899 LPFC_BMBX_BIT1_ADDR_HI); 5900 5901 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 5902 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 5903 LPFC_BMBX_BIT1_ADDR_LO); 5904 return 0; 5905 } 5906 5907 /** 5908 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 5909 * @phba: pointer to lpfc hba data structure. 5910 * 5911 * This routine is invoked to teardown the bootstrap mailbox 5912 * region and release all host resources. This routine requires 5913 * the caller to ensure all mailbox commands recovered, no 5914 * additional mailbox comands are sent, and interrupts are disabled 5915 * before calling this routine. 5916 * 5917 **/ 5918 static void 5919 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 5920 { 5921 dma_free_coherent(&phba->pcidev->dev, 5922 phba->sli4_hba.bmbx.bmbx_size, 5923 phba->sli4_hba.bmbx.dmabuf->virt, 5924 phba->sli4_hba.bmbx.dmabuf->phys); 5925 5926 kfree(phba->sli4_hba.bmbx.dmabuf); 5927 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 5928 } 5929 5930 /** 5931 * lpfc_sli4_read_config - Get the config parameters. 5932 * @phba: pointer to lpfc hba data structure. 5933 * 5934 * This routine is invoked to read the configuration parameters from the HBA. 5935 * The configuration parameters are used to set the base and maximum values 5936 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 5937 * allocation for the port. 5938 * 5939 * Return codes 5940 * 0 - successful 5941 * -ENOMEM - No available memory 5942 * -EIO - The mailbox failed to complete successfully. 5943 **/ 5944 static int 5945 lpfc_sli4_read_config(struct lpfc_hba *phba) 5946 { 5947 LPFC_MBOXQ_t *pmb; 5948 struct lpfc_mbx_read_config *rd_config; 5949 union lpfc_sli4_cfg_shdr *shdr; 5950 uint32_t shdr_status, shdr_add_status; 5951 struct lpfc_mbx_get_func_cfg *get_func_cfg; 5952 struct lpfc_rsrc_desc_fcfcoe *desc; 5953 uint32_t desc_count; 5954 int length, i, rc = 0; 5955 5956 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 5957 if (!pmb) { 5958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5959 "2011 Unable to allocate memory for issuing " 5960 "SLI_CONFIG_SPECIAL mailbox command\n"); 5961 return -ENOMEM; 5962 } 5963 5964 lpfc_read_config(phba, pmb); 5965 5966 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 5967 if (rc != MBX_SUCCESS) { 5968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5969 "2012 Mailbox failed , mbxCmd x%x " 5970 "READ_CONFIG, mbxStatus x%x\n", 5971 bf_get(lpfc_mqe_command, &pmb->u.mqe), 5972 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 5973 rc = -EIO; 5974 } else { 5975 rd_config = &pmb->u.mqe.un.rd_config; 5976 phba->sli4_hba.extents_in_use = 5977 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 5978 phba->sli4_hba.max_cfg_param.max_xri = 5979 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 5980 phba->sli4_hba.max_cfg_param.xri_base = 5981 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 5982 phba->sli4_hba.max_cfg_param.max_vpi = 5983 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 5984 phba->sli4_hba.max_cfg_param.vpi_base = 5985 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 5986 phba->sli4_hba.max_cfg_param.max_rpi = 5987 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 5988 phba->sli4_hba.max_cfg_param.rpi_base = 5989 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 5990 phba->sli4_hba.max_cfg_param.max_vfi = 5991 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 5992 phba->sli4_hba.max_cfg_param.vfi_base = 5993 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 5994 phba->sli4_hba.max_cfg_param.max_fcfi = 5995 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 5996 phba->sli4_hba.max_cfg_param.max_eq = 5997 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 5998 phba->sli4_hba.max_cfg_param.max_rq = 5999 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6000 phba->sli4_hba.max_cfg_param.max_wq = 6001 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6002 phba->sli4_hba.max_cfg_param.max_cq = 6003 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6004 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6005 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6006 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6007 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6008 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base; 6009 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6010 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6011 phba->max_vports = phba->max_vpi; 6012 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6013 "2003 cfg params Extents? %d " 6014 "XRI(B:%d M:%d), " 6015 "VPI(B:%d M:%d) " 6016 "VFI(B:%d M:%d) " 6017 "RPI(B:%d M:%d) " 6018 "FCFI(Count:%d)\n", 6019 phba->sli4_hba.extents_in_use, 6020 phba->sli4_hba.max_cfg_param.xri_base, 6021 phba->sli4_hba.max_cfg_param.max_xri, 6022 phba->sli4_hba.max_cfg_param.vpi_base, 6023 phba->sli4_hba.max_cfg_param.max_vpi, 6024 phba->sli4_hba.max_cfg_param.vfi_base, 6025 phba->sli4_hba.max_cfg_param.max_vfi, 6026 phba->sli4_hba.max_cfg_param.rpi_base, 6027 phba->sli4_hba.max_cfg_param.max_rpi, 6028 phba->sli4_hba.max_cfg_param.max_fcfi); 6029 } 6030 6031 if (rc) 6032 goto read_cfg_out; 6033 6034 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6035 if (phba->cfg_hba_queue_depth > 6036 (phba->sli4_hba.max_cfg_param.max_xri - 6037 lpfc_sli4_get_els_iocb_cnt(phba))) 6038 phba->cfg_hba_queue_depth = 6039 phba->sli4_hba.max_cfg_param.max_xri - 6040 lpfc_sli4_get_els_iocb_cnt(phba); 6041 6042 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6043 LPFC_SLI_INTF_IF_TYPE_2) 6044 goto read_cfg_out; 6045 6046 /* get the pf# and vf# for SLI4 if_type 2 port */ 6047 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6048 sizeof(struct lpfc_sli4_cfg_mhdr)); 6049 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6050 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6051 length, LPFC_SLI4_MBX_EMBED); 6052 6053 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6054 shdr = (union lpfc_sli4_cfg_shdr *) 6055 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6056 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6057 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6058 if (rc || shdr_status || shdr_add_status) { 6059 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6060 "3026 Mailbox failed , mbxCmd x%x " 6061 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6062 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6063 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6064 rc = -EIO; 6065 goto read_cfg_out; 6066 } 6067 6068 /* search for fc_fcoe resrouce descriptor */ 6069 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6070 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6071 6072 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6073 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6074 &get_func_cfg->func_cfg.desc[i]; 6075 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6076 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6077 phba->sli4_hba.iov.pf_number = 6078 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6079 phba->sli4_hba.iov.vf_number = 6080 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6081 break; 6082 } 6083 } 6084 6085 if (i < LPFC_RSRC_DESC_MAX_NUM) 6086 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6087 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6088 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6089 phba->sli4_hba.iov.vf_number); 6090 else { 6091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6092 "3028 GET_FUNCTION_CONFIG: failed to find " 6093 "Resrouce Descriptor:x%x\n", 6094 LPFC_RSRC_DESC_TYPE_FCFCOE); 6095 rc = -EIO; 6096 } 6097 6098 read_cfg_out: 6099 mempool_free(pmb, phba->mbox_mem_pool); 6100 return rc; 6101 } 6102 6103 /** 6104 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6105 * @phba: pointer to lpfc hba data structure. 6106 * 6107 * This routine is invoked to setup the port-side endian order when 6108 * the port if_type is 0. This routine has no function for other 6109 * if_types. 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_setup_endian_order(struct lpfc_hba *phba) 6118 { 6119 LPFC_MBOXQ_t *mboxq; 6120 uint32_t if_type, rc = 0; 6121 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6122 HOST_ENDIAN_HIGH_WORD1}; 6123 6124 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6125 switch (if_type) { 6126 case LPFC_SLI_INTF_IF_TYPE_0: 6127 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6128 GFP_KERNEL); 6129 if (!mboxq) { 6130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6131 "0492 Unable to allocate memory for " 6132 "issuing SLI_CONFIG_SPECIAL mailbox " 6133 "command\n"); 6134 return -ENOMEM; 6135 } 6136 6137 /* 6138 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6139 * two words to contain special data values and no other data. 6140 */ 6141 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6142 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6144 if (rc != MBX_SUCCESS) { 6145 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6146 "0493 SLI_CONFIG_SPECIAL mailbox " 6147 "failed with status x%x\n", 6148 rc); 6149 rc = -EIO; 6150 } 6151 mempool_free(mboxq, phba->mbox_mem_pool); 6152 break; 6153 case LPFC_SLI_INTF_IF_TYPE_2: 6154 case LPFC_SLI_INTF_IF_TYPE_1: 6155 default: 6156 break; 6157 } 6158 return rc; 6159 } 6160 6161 /** 6162 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6163 * @phba: pointer to lpfc hba data structure. 6164 * 6165 * This routine is invoked to check the user settable queue counts for EQs and 6166 * CQs. after this routine is called the counts will be set to valid values that 6167 * adhere to the constraints of the system's interrupt vectors and the port's 6168 * queue resources. 6169 * 6170 * Return codes 6171 * 0 - successful 6172 * -ENOMEM - No available memory 6173 **/ 6174 static int 6175 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6176 { 6177 int cfg_fcp_wq_count; 6178 int cfg_fcp_eq_count; 6179 6180 /* 6181 * Sanity check for confiugred queue parameters against the run-time 6182 * device parameters 6183 */ 6184 6185 /* Sanity check on FCP fast-path WQ parameters */ 6186 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6187 if (cfg_fcp_wq_count > 6188 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6189 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6190 LPFC_SP_WQN_DEF; 6191 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6193 "2581 Not enough WQs (%d) from " 6194 "the pci function for supporting " 6195 "FCP WQs (%d)\n", 6196 phba->sli4_hba.max_cfg_param.max_wq, 6197 phba->cfg_fcp_wq_count); 6198 goto out_error; 6199 } 6200 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6201 "2582 Not enough WQs (%d) from the pci " 6202 "function for supporting the requested " 6203 "FCP WQs (%d), the actual FCP WQs can " 6204 "be supported: %d\n", 6205 phba->sli4_hba.max_cfg_param.max_wq, 6206 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6207 } 6208 /* The actual number of FCP work queues adopted */ 6209 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6210 6211 /* Sanity check on FCP fast-path EQ parameters */ 6212 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6213 if (cfg_fcp_eq_count > 6214 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6215 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6216 LPFC_SP_EQN_DEF; 6217 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6219 "2574 Not enough EQs (%d) from the " 6220 "pci function for supporting FCP " 6221 "EQs (%d)\n", 6222 phba->sli4_hba.max_cfg_param.max_eq, 6223 phba->cfg_fcp_eq_count); 6224 goto out_error; 6225 } 6226 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6227 "2575 Not enough EQs (%d) from the pci " 6228 "function for supporting the requested " 6229 "FCP EQs (%d), the actual FCP EQs can " 6230 "be supported: %d\n", 6231 phba->sli4_hba.max_cfg_param.max_eq, 6232 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6233 } 6234 /* It does not make sense to have more EQs than WQs */ 6235 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6236 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6237 "2593 The FCP EQ count(%d) cannot be greater " 6238 "than the FCP WQ count(%d), limiting the " 6239 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6240 phba->cfg_fcp_wq_count, 6241 phba->cfg_fcp_wq_count); 6242 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6243 } 6244 /* The actual number of FCP event queues adopted */ 6245 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6246 /* The overall number of event queues used */ 6247 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6248 6249 /* Get EQ depth from module parameter, fake the default for now */ 6250 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6251 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6252 6253 /* Get CQ depth from module parameter, fake the default for now */ 6254 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6255 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6256 6257 return 0; 6258 out_error: 6259 return -ENOMEM; 6260 } 6261 6262 /** 6263 * lpfc_sli4_queue_create - Create all the SLI4 queues 6264 * @phba: pointer to lpfc hba data structure. 6265 * 6266 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6267 * operation. For each SLI4 queue type, the parameters such as queue entry 6268 * count (queue depth) shall be taken from the module parameter. For now, 6269 * we just use some constant number as place holder. 6270 * 6271 * Return codes 6272 * 0 - sucessful 6273 * -ENOMEM - No availble memory 6274 * -EIO - The mailbox failed to complete successfully. 6275 **/ 6276 int 6277 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6278 { 6279 struct lpfc_queue *qdesc; 6280 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6281 6282 /* 6283 * Create Event Queues (EQs) 6284 */ 6285 6286 /* Create slow path event queue */ 6287 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6288 phba->sli4_hba.eq_ecount); 6289 if (!qdesc) { 6290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6291 "0496 Failed allocate slow-path EQ\n"); 6292 goto out_error; 6293 } 6294 phba->sli4_hba.sp_eq = qdesc; 6295 6296 /* 6297 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be 6298 * zero whenever there is exactly one interrupt vector. This is not 6299 * an error. 6300 */ 6301 if (phba->cfg_fcp_eq_count) { 6302 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6303 phba->cfg_fcp_eq_count), GFP_KERNEL); 6304 if (!phba->sli4_hba.fp_eq) { 6305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6306 "2576 Failed allocate memory for " 6307 "fast-path EQ record array\n"); 6308 goto out_free_sp_eq; 6309 } 6310 } 6311 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6312 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6313 phba->sli4_hba.eq_ecount); 6314 if (!qdesc) { 6315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6316 "0497 Failed allocate fast-path EQ\n"); 6317 goto out_free_fp_eq; 6318 } 6319 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6320 } 6321 6322 /* 6323 * Create Complete Queues (CQs) 6324 */ 6325 6326 /* Create slow-path Mailbox Command Complete Queue */ 6327 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6328 phba->sli4_hba.cq_ecount); 6329 if (!qdesc) { 6330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6331 "0500 Failed allocate slow-path mailbox CQ\n"); 6332 goto out_free_fp_eq; 6333 } 6334 phba->sli4_hba.mbx_cq = qdesc; 6335 6336 /* Create slow-path ELS Complete Queue */ 6337 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6338 phba->sli4_hba.cq_ecount); 6339 if (!qdesc) { 6340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6341 "0501 Failed allocate slow-path ELS CQ\n"); 6342 goto out_free_mbx_cq; 6343 } 6344 phba->sli4_hba.els_cq = qdesc; 6345 6346 6347 /* 6348 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. 6349 * If there are no FCP EQs then create exactly one FCP CQ. 6350 */ 6351 if (phba->cfg_fcp_eq_count) 6352 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6353 phba->cfg_fcp_eq_count), 6354 GFP_KERNEL); 6355 else 6356 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), 6357 GFP_KERNEL); 6358 if (!phba->sli4_hba.fcp_cq) { 6359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6360 "2577 Failed allocate memory for fast-path " 6361 "CQ record array\n"); 6362 goto out_free_els_cq; 6363 } 6364 fcp_cqidx = 0; 6365 do { 6366 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6367 phba->sli4_hba.cq_ecount); 6368 if (!qdesc) { 6369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6370 "0499 Failed allocate fast-path FCP " 6371 "CQ (%d)\n", fcp_cqidx); 6372 goto out_free_fcp_cq; 6373 } 6374 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6375 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6376 6377 /* Create Mailbox Command Queue */ 6378 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6379 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6380 6381 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6382 phba->sli4_hba.mq_ecount); 6383 if (!qdesc) { 6384 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6385 "0505 Failed allocate slow-path MQ\n"); 6386 goto out_free_fcp_cq; 6387 } 6388 phba->sli4_hba.mbx_wq = qdesc; 6389 6390 /* 6391 * Create all the Work Queues (WQs) 6392 */ 6393 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6394 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6395 6396 /* Create slow-path ELS Work Queue */ 6397 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6398 phba->sli4_hba.wq_ecount); 6399 if (!qdesc) { 6400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6401 "0504 Failed allocate slow-path ELS WQ\n"); 6402 goto out_free_mbx_wq; 6403 } 6404 phba->sli4_hba.els_wq = qdesc; 6405 6406 /* Create fast-path FCP Work Queue(s) */ 6407 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6408 phba->cfg_fcp_wq_count), GFP_KERNEL); 6409 if (!phba->sli4_hba.fcp_wq) { 6410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6411 "2578 Failed allocate memory for fast-path " 6412 "WQ record array\n"); 6413 goto out_free_els_wq; 6414 } 6415 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6416 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6417 phba->sli4_hba.wq_ecount); 6418 if (!qdesc) { 6419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6420 "0503 Failed allocate fast-path FCP " 6421 "WQ (%d)\n", fcp_wqidx); 6422 goto out_free_fcp_wq; 6423 } 6424 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6425 } 6426 6427 /* 6428 * Create Receive Queue (RQ) 6429 */ 6430 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6431 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6432 6433 /* Create Receive Queue for header */ 6434 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6435 phba->sli4_hba.rq_ecount); 6436 if (!qdesc) { 6437 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6438 "0506 Failed allocate receive HRQ\n"); 6439 goto out_free_fcp_wq; 6440 } 6441 phba->sli4_hba.hdr_rq = qdesc; 6442 6443 /* Create Receive Queue for data */ 6444 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6445 phba->sli4_hba.rq_ecount); 6446 if (!qdesc) { 6447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6448 "0507 Failed allocate receive DRQ\n"); 6449 goto out_free_hdr_rq; 6450 } 6451 phba->sli4_hba.dat_rq = qdesc; 6452 6453 return 0; 6454 6455 out_free_hdr_rq: 6456 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6457 phba->sli4_hba.hdr_rq = NULL; 6458 out_free_fcp_wq: 6459 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6460 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6461 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6462 } 6463 kfree(phba->sli4_hba.fcp_wq); 6464 out_free_els_wq: 6465 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6466 phba->sli4_hba.els_wq = NULL; 6467 out_free_mbx_wq: 6468 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6469 phba->sli4_hba.mbx_wq = NULL; 6470 out_free_fcp_cq: 6471 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6472 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6473 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6474 } 6475 kfree(phba->sli4_hba.fcp_cq); 6476 out_free_els_cq: 6477 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6478 phba->sli4_hba.els_cq = NULL; 6479 out_free_mbx_cq: 6480 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6481 phba->sli4_hba.mbx_cq = NULL; 6482 out_free_fp_eq: 6483 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6484 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6485 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6486 } 6487 kfree(phba->sli4_hba.fp_eq); 6488 out_free_sp_eq: 6489 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6490 phba->sli4_hba.sp_eq = NULL; 6491 out_error: 6492 return -ENOMEM; 6493 } 6494 6495 /** 6496 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6497 * @phba: pointer to lpfc hba data structure. 6498 * 6499 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6500 * operation. 6501 * 6502 * Return codes 6503 * 0 - successful 6504 * -ENOMEM - No available memory 6505 * -EIO - The mailbox failed to complete successfully. 6506 **/ 6507 void 6508 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6509 { 6510 int fcp_qidx; 6511 6512 /* Release mailbox command work queue */ 6513 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6514 phba->sli4_hba.mbx_wq = NULL; 6515 6516 /* Release ELS work queue */ 6517 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6518 phba->sli4_hba.els_wq = NULL; 6519 6520 /* Release FCP work queue */ 6521 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6522 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6523 kfree(phba->sli4_hba.fcp_wq); 6524 phba->sli4_hba.fcp_wq = NULL; 6525 6526 /* Release unsolicited receive queue */ 6527 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6528 phba->sli4_hba.hdr_rq = NULL; 6529 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6530 phba->sli4_hba.dat_rq = NULL; 6531 6532 /* Release ELS complete queue */ 6533 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6534 phba->sli4_hba.els_cq = NULL; 6535 6536 /* Release mailbox command complete queue */ 6537 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6538 phba->sli4_hba.mbx_cq = NULL; 6539 6540 /* Release FCP response complete queue */ 6541 fcp_qidx = 0; 6542 do 6543 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6544 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6545 kfree(phba->sli4_hba.fcp_cq); 6546 phba->sli4_hba.fcp_cq = NULL; 6547 6548 /* Release fast-path event queue */ 6549 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6550 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6551 kfree(phba->sli4_hba.fp_eq); 6552 phba->sli4_hba.fp_eq = NULL; 6553 6554 /* Release slow-path event queue */ 6555 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6556 phba->sli4_hba.sp_eq = NULL; 6557 6558 return; 6559 } 6560 6561 /** 6562 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6563 * @phba: pointer to lpfc hba data structure. 6564 * 6565 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6566 * operation. 6567 * 6568 * Return codes 6569 * 0 - successful 6570 * -ENOMEM - No available memory 6571 * -EIO - The mailbox failed to complete successfully. 6572 **/ 6573 int 6574 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6575 { 6576 int rc = -ENOMEM; 6577 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6578 int fcp_cq_index = 0; 6579 6580 /* 6581 * Set up Event Queues (EQs) 6582 */ 6583 6584 /* Set up slow-path event queue */ 6585 if (!phba->sli4_hba.sp_eq) { 6586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6587 "0520 Slow-path EQ not allocated\n"); 6588 goto out_error; 6589 } 6590 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6591 LPFC_SP_DEF_IMAX); 6592 if (rc) { 6593 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6594 "0521 Failed setup of slow-path EQ: " 6595 "rc = 0x%x\n", rc); 6596 goto out_error; 6597 } 6598 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6599 "2583 Slow-path EQ setup: queue-id=%d\n", 6600 phba->sli4_hba.sp_eq->queue_id); 6601 6602 /* Set up fast-path event queue */ 6603 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6604 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6606 "0522 Fast-path EQ (%d) not " 6607 "allocated\n", fcp_eqidx); 6608 goto out_destroy_fp_eq; 6609 } 6610 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6611 phba->cfg_fcp_imax); 6612 if (rc) { 6613 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6614 "0523 Failed setup of fast-path EQ " 6615 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6616 goto out_destroy_fp_eq; 6617 } 6618 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6619 "2584 Fast-path EQ setup: " 6620 "queue[%d]-id=%d\n", fcp_eqidx, 6621 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6622 } 6623 6624 /* 6625 * Set up Complete Queues (CQs) 6626 */ 6627 6628 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6629 if (!phba->sli4_hba.mbx_cq) { 6630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6631 "0528 Mailbox CQ not allocated\n"); 6632 goto out_destroy_fp_eq; 6633 } 6634 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6635 LPFC_MCQ, LPFC_MBOX); 6636 if (rc) { 6637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6638 "0529 Failed setup of slow-path mailbox CQ: " 6639 "rc = 0x%x\n", rc); 6640 goto out_destroy_fp_eq; 6641 } 6642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6643 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6644 phba->sli4_hba.mbx_cq->queue_id, 6645 phba->sli4_hba.sp_eq->queue_id); 6646 6647 /* Set up slow-path ELS Complete Queue */ 6648 if (!phba->sli4_hba.els_cq) { 6649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6650 "0530 ELS CQ not allocated\n"); 6651 goto out_destroy_mbx_cq; 6652 } 6653 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6654 LPFC_WCQ, LPFC_ELS); 6655 if (rc) { 6656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6657 "0531 Failed setup of slow-path ELS CQ: " 6658 "rc = 0x%x\n", rc); 6659 goto out_destroy_mbx_cq; 6660 } 6661 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6662 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6663 phba->sli4_hba.els_cq->queue_id, 6664 phba->sli4_hba.sp_eq->queue_id); 6665 6666 /* Set up fast-path FCP Response Complete Queue */ 6667 fcp_cqidx = 0; 6668 do { 6669 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6671 "0526 Fast-path FCP CQ (%d) not " 6672 "allocated\n", fcp_cqidx); 6673 goto out_destroy_fcp_cq; 6674 } 6675 if (phba->cfg_fcp_eq_count) 6676 rc = lpfc_cq_create(phba, 6677 phba->sli4_hba.fcp_cq[fcp_cqidx], 6678 phba->sli4_hba.fp_eq[fcp_cqidx], 6679 LPFC_WCQ, LPFC_FCP); 6680 else 6681 rc = lpfc_cq_create(phba, 6682 phba->sli4_hba.fcp_cq[fcp_cqidx], 6683 phba->sli4_hba.sp_eq, 6684 LPFC_WCQ, LPFC_FCP); 6685 if (rc) { 6686 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6687 "0527 Failed setup of fast-path FCP " 6688 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6689 goto out_destroy_fcp_cq; 6690 } 6691 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6692 "2588 FCP CQ setup: cq[%d]-id=%d, " 6693 "parent %seq[%d]-id=%d\n", 6694 fcp_cqidx, 6695 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6696 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6697 fcp_cqidx, 6698 (phba->cfg_fcp_eq_count) ? 6699 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6700 phba->sli4_hba.sp_eq->queue_id); 6701 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6702 6703 /* 6704 * Set up all the Work Queues (WQs) 6705 */ 6706 6707 /* Set up Mailbox Command Queue */ 6708 if (!phba->sli4_hba.mbx_wq) { 6709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6710 "0538 Slow-path MQ not allocated\n"); 6711 goto out_destroy_fcp_cq; 6712 } 6713 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6714 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6715 if (rc) { 6716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6717 "0539 Failed setup of slow-path MQ: " 6718 "rc = 0x%x\n", rc); 6719 goto out_destroy_fcp_cq; 6720 } 6721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6722 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6723 phba->sli4_hba.mbx_wq->queue_id, 6724 phba->sli4_hba.mbx_cq->queue_id); 6725 6726 /* Set up slow-path ELS Work Queue */ 6727 if (!phba->sli4_hba.els_wq) { 6728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6729 "0536 Slow-path ELS WQ not allocated\n"); 6730 goto out_destroy_mbx_wq; 6731 } 6732 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6733 phba->sli4_hba.els_cq, LPFC_ELS); 6734 if (rc) { 6735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6736 "0537 Failed setup of slow-path ELS WQ: " 6737 "rc = 0x%x\n", rc); 6738 goto out_destroy_mbx_wq; 6739 } 6740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6741 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6742 phba->sli4_hba.els_wq->queue_id, 6743 phba->sli4_hba.els_cq->queue_id); 6744 6745 /* Set up fast-path FCP Work Queue */ 6746 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6747 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6749 "0534 Fast-path FCP WQ (%d) not " 6750 "allocated\n", fcp_wqidx); 6751 goto out_destroy_fcp_wq; 6752 } 6753 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6754 phba->sli4_hba.fcp_cq[fcp_cq_index], 6755 LPFC_FCP); 6756 if (rc) { 6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6758 "0535 Failed setup of fast-path FCP " 6759 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6760 goto out_destroy_fcp_wq; 6761 } 6762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6763 "2591 FCP WQ setup: wq[%d]-id=%d, " 6764 "parent cq[%d]-id=%d\n", 6765 fcp_wqidx, 6766 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6767 fcp_cq_index, 6768 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6769 /* Round robin FCP Work Queue's Completion Queue assignment */ 6770 if (phba->cfg_fcp_eq_count) 6771 fcp_cq_index = ((fcp_cq_index + 1) % 6772 phba->cfg_fcp_eq_count); 6773 } 6774 6775 /* 6776 * Create Receive Queue (RQ) 6777 */ 6778 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6779 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6780 "0540 Receive Queue not allocated\n"); 6781 goto out_destroy_fcp_wq; 6782 } 6783 6784 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 6785 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 6786 6787 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6788 phba->sli4_hba.els_cq, LPFC_USOL); 6789 if (rc) { 6790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6791 "0541 Failed setup of Receive Queue: " 6792 "rc = 0x%x\n", rc); 6793 goto out_destroy_fcp_wq; 6794 } 6795 6796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6797 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6798 "parent cq-id=%d\n", 6799 phba->sli4_hba.hdr_rq->queue_id, 6800 phba->sli4_hba.dat_rq->queue_id, 6801 phba->sli4_hba.els_cq->queue_id); 6802 return 0; 6803 6804 out_destroy_fcp_wq: 6805 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6806 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6807 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6808 out_destroy_mbx_wq: 6809 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6810 out_destroy_fcp_cq: 6811 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6812 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6813 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6814 out_destroy_mbx_cq: 6815 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6816 out_destroy_fp_eq: 6817 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6818 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6819 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6820 out_error: 6821 return rc; 6822 } 6823 6824 /** 6825 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 6826 * @phba: pointer to lpfc hba data structure. 6827 * 6828 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 6829 * operation. 6830 * 6831 * Return codes 6832 * 0 - successful 6833 * -ENOMEM - No available memory 6834 * -EIO - The mailbox failed to complete successfully. 6835 **/ 6836 void 6837 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 6838 { 6839 int fcp_qidx; 6840 6841 /* Unset mailbox command work queue */ 6842 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6843 /* Unset ELS work queue */ 6844 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6845 /* Unset unsolicited receive queue */ 6846 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 6847 /* Unset FCP work queue */ 6848 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 6849 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 6850 /* Unset mailbox command complete queue */ 6851 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6852 /* Unset ELS complete queue */ 6853 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6854 /* Unset FCP response complete queue */ 6855 fcp_qidx = 0; 6856 do { 6857 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 6858 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 6859 /* Unset fast-path event queue */ 6860 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) 6861 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 6862 /* Unset slow-path event queue */ 6863 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6864 } 6865 6866 /** 6867 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 6868 * @phba: pointer to lpfc hba data structure. 6869 * 6870 * This routine is invoked to allocate and set up a pool of completion queue 6871 * events. The body of the completion queue event is a completion queue entry 6872 * CQE. For now, this pool is used for the interrupt service routine to queue 6873 * the following HBA completion queue events for the worker thread to process: 6874 * - Mailbox asynchronous events 6875 * - Receive queue completion unsolicited events 6876 * Later, this can be used for all the slow-path events. 6877 * 6878 * Return codes 6879 * 0 - successful 6880 * -ENOMEM - No available memory 6881 **/ 6882 static int 6883 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 6884 { 6885 struct lpfc_cq_event *cq_event; 6886 int i; 6887 6888 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 6889 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 6890 if (!cq_event) 6891 goto out_pool_create_fail; 6892 list_add_tail(&cq_event->list, 6893 &phba->sli4_hba.sp_cqe_event_pool); 6894 } 6895 return 0; 6896 6897 out_pool_create_fail: 6898 lpfc_sli4_cq_event_pool_destroy(phba); 6899 return -ENOMEM; 6900 } 6901 6902 /** 6903 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 6904 * @phba: pointer to lpfc hba data structure. 6905 * 6906 * This routine is invoked to free the pool of completion queue events at 6907 * driver unload time. Note that, it is the responsibility of the driver 6908 * cleanup routine to free all the outstanding completion-queue events 6909 * allocated from this pool back into the pool before invoking this routine 6910 * to destroy the pool. 6911 **/ 6912 static void 6913 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 6914 { 6915 struct lpfc_cq_event *cq_event, *next_cq_event; 6916 6917 list_for_each_entry_safe(cq_event, next_cq_event, 6918 &phba->sli4_hba.sp_cqe_event_pool, list) { 6919 list_del(&cq_event->list); 6920 kfree(cq_event); 6921 } 6922 } 6923 6924 /** 6925 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6926 * @phba: pointer to lpfc hba data structure. 6927 * 6928 * This routine is the lock free version of the API invoked to allocate a 6929 * completion-queue event from the free pool. 6930 * 6931 * Return: Pointer to the newly allocated completion-queue event if successful 6932 * NULL otherwise. 6933 **/ 6934 struct lpfc_cq_event * 6935 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6936 { 6937 struct lpfc_cq_event *cq_event = NULL; 6938 6939 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 6940 struct lpfc_cq_event, list); 6941 return cq_event; 6942 } 6943 6944 /** 6945 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 6946 * @phba: pointer to lpfc hba data structure. 6947 * 6948 * This routine is the lock version of the API invoked to allocate a 6949 * completion-queue event from the free pool. 6950 * 6951 * Return: Pointer to the newly allocated completion-queue event if successful 6952 * NULL otherwise. 6953 **/ 6954 struct lpfc_cq_event * 6955 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 6956 { 6957 struct lpfc_cq_event *cq_event; 6958 unsigned long iflags; 6959 6960 spin_lock_irqsave(&phba->hbalock, iflags); 6961 cq_event = __lpfc_sli4_cq_event_alloc(phba); 6962 spin_unlock_irqrestore(&phba->hbalock, iflags); 6963 return cq_event; 6964 } 6965 6966 /** 6967 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6968 * @phba: pointer to lpfc hba data structure. 6969 * @cq_event: pointer to the completion queue event to be freed. 6970 * 6971 * This routine is the lock free version of the API invoked to release a 6972 * completion-queue event back into the free pool. 6973 **/ 6974 void 6975 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6976 struct lpfc_cq_event *cq_event) 6977 { 6978 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 6979 } 6980 6981 /** 6982 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 6983 * @phba: pointer to lpfc hba data structure. 6984 * @cq_event: pointer to the completion queue event to be freed. 6985 * 6986 * This routine is the lock version of the API invoked to release a 6987 * completion-queue event back into the free pool. 6988 **/ 6989 void 6990 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 6991 struct lpfc_cq_event *cq_event) 6992 { 6993 unsigned long iflags; 6994 spin_lock_irqsave(&phba->hbalock, iflags); 6995 __lpfc_sli4_cq_event_release(phba, cq_event); 6996 spin_unlock_irqrestore(&phba->hbalock, iflags); 6997 } 6998 6999 /** 7000 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7001 * @phba: pointer to lpfc hba data structure. 7002 * 7003 * This routine is to free all the pending completion-queue events to the 7004 * back into the free pool for device reset. 7005 **/ 7006 static void 7007 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7008 { 7009 LIST_HEAD(cqelist); 7010 struct lpfc_cq_event *cqe; 7011 unsigned long iflags; 7012 7013 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7014 spin_lock_irqsave(&phba->hbalock, iflags); 7015 /* Pending FCP XRI abort events */ 7016 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7017 &cqelist); 7018 /* Pending ELS XRI abort events */ 7019 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7020 &cqelist); 7021 /* Pending asynnc events */ 7022 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7023 &cqelist); 7024 spin_unlock_irqrestore(&phba->hbalock, iflags); 7025 7026 while (!list_empty(&cqelist)) { 7027 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7028 lpfc_sli4_cq_event_release(phba, cqe); 7029 } 7030 } 7031 7032 /** 7033 * lpfc_pci_function_reset - Reset pci function. 7034 * @phba: pointer to lpfc hba data structure. 7035 * 7036 * This routine is invoked to request a PCI function reset. It will destroys 7037 * all resources assigned to the PCI function which originates this request. 7038 * 7039 * Return codes 7040 * 0 - successful 7041 * -ENOMEM - No available memory 7042 * -EIO - The mailbox failed to complete successfully. 7043 **/ 7044 int 7045 lpfc_pci_function_reset(struct lpfc_hba *phba) 7046 { 7047 LPFC_MBOXQ_t *mboxq; 7048 uint32_t rc = 0, if_type; 7049 uint32_t shdr_status, shdr_add_status; 7050 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7051 union lpfc_sli4_cfg_shdr *shdr; 7052 struct lpfc_register reg_data; 7053 7054 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7055 switch (if_type) { 7056 case LPFC_SLI_INTF_IF_TYPE_0: 7057 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7058 GFP_KERNEL); 7059 if (!mboxq) { 7060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7061 "0494 Unable to allocate memory for " 7062 "issuing SLI_FUNCTION_RESET mailbox " 7063 "command\n"); 7064 return -ENOMEM; 7065 } 7066 7067 /* Setup PCI function reset mailbox-ioctl command */ 7068 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7069 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7070 LPFC_SLI4_MBX_EMBED); 7071 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7072 shdr = (union lpfc_sli4_cfg_shdr *) 7073 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7074 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7075 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7076 &shdr->response); 7077 if (rc != MBX_TIMEOUT) 7078 mempool_free(mboxq, phba->mbox_mem_pool); 7079 if (shdr_status || shdr_add_status || rc) { 7080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7081 "0495 SLI_FUNCTION_RESET mailbox " 7082 "failed with status x%x add_status x%x," 7083 " mbx status x%x\n", 7084 shdr_status, shdr_add_status, rc); 7085 rc = -ENXIO; 7086 } 7087 break; 7088 case LPFC_SLI_INTF_IF_TYPE_2: 7089 for (num_resets = 0; 7090 num_resets < MAX_IF_TYPE_2_RESETS; 7091 num_resets++) { 7092 reg_data.word0 = 0; 7093 bf_set(lpfc_sliport_ctrl_end, ®_data, 7094 LPFC_SLIPORT_LITTLE_ENDIAN); 7095 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7096 LPFC_SLIPORT_INIT_PORT); 7097 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7098 CTRLregaddr); 7099 7100 /* 7101 * Poll the Port Status Register and wait for RDY for 7102 * up to 10 seconds. If the port doesn't respond, treat 7103 * it as an error. If the port responds with RN, start 7104 * the loop again. 7105 */ 7106 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7107 msleep(10); 7108 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7109 STATUSregaddr, ®_data.word0)) { 7110 rc = -ENODEV; 7111 goto out; 7112 } 7113 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7114 break; 7115 if (bf_get(lpfc_sliport_status_rn, ®_data)) { 7116 reset_again++; 7117 break; 7118 } 7119 } 7120 7121 /* 7122 * If the port responds to the init request with 7123 * reset needed, delay for a bit and restart the loop. 7124 */ 7125 if (reset_again) { 7126 msleep(10); 7127 reset_again = 0; 7128 continue; 7129 } 7130 7131 /* Detect any port errors. */ 7132 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7133 (rdy_chk >= 1000)) { 7134 phba->work_status[0] = readl( 7135 phba->sli4_hba.u.if_type2.ERR1regaddr); 7136 phba->work_status[1] = readl( 7137 phba->sli4_hba.u.if_type2.ERR2regaddr); 7138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7139 "2890 Port Error Detected " 7140 "during Port Reset: " 7141 "port status reg 0x%x, " 7142 "error 1=0x%x, error 2=0x%x\n", 7143 reg_data.word0, 7144 phba->work_status[0], 7145 phba->work_status[1]); 7146 rc = -ENODEV; 7147 } 7148 7149 /* 7150 * Terminate the outer loop provided the Port indicated 7151 * ready within 10 seconds. 7152 */ 7153 if (rdy_chk < 1000) 7154 break; 7155 } 7156 /* delay driver action following IF_TYPE_2 function reset */ 7157 msleep(100); 7158 break; 7159 case LPFC_SLI_INTF_IF_TYPE_1: 7160 default: 7161 break; 7162 } 7163 7164 out: 7165 /* Catch the not-ready port failure after a port reset. */ 7166 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7167 rc = -ENODEV; 7168 7169 return rc; 7170 } 7171 7172 /** 7173 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7174 * @phba: pointer to lpfc hba data structure. 7175 * @cnt: number of nop mailbox commands to send. 7176 * 7177 * This routine is invoked to send a number @cnt of NOP mailbox command and 7178 * wait for each command to complete. 7179 * 7180 * Return: the number of NOP mailbox command completed. 7181 **/ 7182 static int 7183 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7184 { 7185 LPFC_MBOXQ_t *mboxq; 7186 int length, cmdsent; 7187 uint32_t mbox_tmo; 7188 uint32_t rc = 0; 7189 uint32_t shdr_status, shdr_add_status; 7190 union lpfc_sli4_cfg_shdr *shdr; 7191 7192 if (cnt == 0) { 7193 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7194 "2518 Requested to send 0 NOP mailbox cmd\n"); 7195 return cnt; 7196 } 7197 7198 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7199 if (!mboxq) { 7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7201 "2519 Unable to allocate memory for issuing " 7202 "NOP mailbox command\n"); 7203 return 0; 7204 } 7205 7206 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7207 length = (sizeof(struct lpfc_mbx_nop) - 7208 sizeof(struct lpfc_sli4_cfg_mhdr)); 7209 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7210 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7211 7212 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7213 if (!phba->sli4_hba.intr_enable) 7214 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7215 else { 7216 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7217 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7218 } 7219 if (rc == MBX_TIMEOUT) 7220 break; 7221 /* Check return status */ 7222 shdr = (union lpfc_sli4_cfg_shdr *) 7223 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7224 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7225 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7226 &shdr->response); 7227 if (shdr_status || shdr_add_status || rc) { 7228 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7229 "2520 NOP mailbox command failed " 7230 "status x%x add_status x%x mbx " 7231 "status x%x\n", shdr_status, 7232 shdr_add_status, rc); 7233 break; 7234 } 7235 } 7236 7237 if (rc != MBX_TIMEOUT) 7238 mempool_free(mboxq, phba->mbox_mem_pool); 7239 7240 return cmdsent; 7241 } 7242 7243 /** 7244 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7245 * @phba: pointer to lpfc hba data structure. 7246 * 7247 * This routine is invoked to set up the PCI device memory space for device 7248 * with SLI-4 interface spec. 7249 * 7250 * Return codes 7251 * 0 - successful 7252 * other values - error 7253 **/ 7254 static int 7255 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7256 { 7257 struct pci_dev *pdev; 7258 unsigned long bar0map_len, bar1map_len, bar2map_len; 7259 int error = -ENODEV; 7260 uint32_t if_type; 7261 7262 /* Obtain PCI device reference */ 7263 if (!phba->pcidev) 7264 return error; 7265 else 7266 pdev = phba->pcidev; 7267 7268 /* Set the device DMA mask size */ 7269 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7270 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7271 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7272 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7273 return error; 7274 } 7275 } 7276 7277 /* 7278 * The BARs and register set definitions and offset locations are 7279 * dependent on the if_type. 7280 */ 7281 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7282 &phba->sli4_hba.sli_intf.word0)) { 7283 return error; 7284 } 7285 7286 /* There is no SLI3 failback for SLI4 devices. */ 7287 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7288 LPFC_SLI_INTF_VALID) { 7289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7290 "2894 SLI_INTF reg contents invalid " 7291 "sli_intf reg 0x%x\n", 7292 phba->sli4_hba.sli_intf.word0); 7293 return error; 7294 } 7295 7296 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7297 /* 7298 * Get the bus address of SLI4 device Bar regions and the 7299 * number of bytes required by each mapping. The mapping of the 7300 * particular PCI BARs regions is dependent on the type of 7301 * SLI4 device. 7302 */ 7303 if (pci_resource_start(pdev, 0)) { 7304 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7305 bar0map_len = pci_resource_len(pdev, 0); 7306 7307 /* 7308 * Map SLI4 PCI Config Space Register base to a kernel virtual 7309 * addr 7310 */ 7311 phba->sli4_hba.conf_regs_memmap_p = 7312 ioremap(phba->pci_bar0_map, bar0map_len); 7313 if (!phba->sli4_hba.conf_regs_memmap_p) { 7314 dev_printk(KERN_ERR, &pdev->dev, 7315 "ioremap failed for SLI4 PCI config " 7316 "registers.\n"); 7317 goto out; 7318 } 7319 /* Set up BAR0 PCI config space register memory map */ 7320 lpfc_sli4_bar0_register_memmap(phba, if_type); 7321 } else { 7322 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7323 bar0map_len = pci_resource_len(pdev, 1); 7324 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7325 dev_printk(KERN_ERR, &pdev->dev, 7326 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7327 goto out; 7328 } 7329 phba->sli4_hba.conf_regs_memmap_p = 7330 ioremap(phba->pci_bar0_map, bar0map_len); 7331 if (!phba->sli4_hba.conf_regs_memmap_p) { 7332 dev_printk(KERN_ERR, &pdev->dev, 7333 "ioremap failed for SLI4 PCI config " 7334 "registers.\n"); 7335 goto out; 7336 } 7337 lpfc_sli4_bar0_register_memmap(phba, if_type); 7338 } 7339 7340 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7341 (pci_resource_start(pdev, 2))) { 7342 /* 7343 * Map SLI4 if type 0 HBA Control Register base to a kernel 7344 * virtual address and setup the registers. 7345 */ 7346 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7347 bar1map_len = pci_resource_len(pdev, 2); 7348 phba->sli4_hba.ctrl_regs_memmap_p = 7349 ioremap(phba->pci_bar1_map, bar1map_len); 7350 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7351 dev_printk(KERN_ERR, &pdev->dev, 7352 "ioremap failed for SLI4 HBA control registers.\n"); 7353 goto out_iounmap_conf; 7354 } 7355 lpfc_sli4_bar1_register_memmap(phba); 7356 } 7357 7358 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7359 (pci_resource_start(pdev, 4))) { 7360 /* 7361 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7362 * virtual address and setup the registers. 7363 */ 7364 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7365 bar2map_len = pci_resource_len(pdev, 4); 7366 phba->sli4_hba.drbl_regs_memmap_p = 7367 ioremap(phba->pci_bar2_map, bar2map_len); 7368 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7369 dev_printk(KERN_ERR, &pdev->dev, 7370 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7371 goto out_iounmap_ctrl; 7372 } 7373 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7374 if (error) 7375 goto out_iounmap_all; 7376 } 7377 7378 return 0; 7379 7380 out_iounmap_all: 7381 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7382 out_iounmap_ctrl: 7383 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7384 out_iounmap_conf: 7385 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7386 out: 7387 return error; 7388 } 7389 7390 /** 7391 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7392 * @phba: pointer to lpfc hba data structure. 7393 * 7394 * This routine is invoked to unset the PCI device memory space for device 7395 * with SLI-4 interface spec. 7396 **/ 7397 static void 7398 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7399 { 7400 struct pci_dev *pdev; 7401 7402 /* Obtain PCI device reference */ 7403 if (!phba->pcidev) 7404 return; 7405 else 7406 pdev = phba->pcidev; 7407 7408 /* Free coherent DMA memory allocated */ 7409 7410 /* Unmap I/O memory space */ 7411 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7412 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7413 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7414 7415 return; 7416 } 7417 7418 /** 7419 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7420 * @phba: pointer to lpfc hba data structure. 7421 * 7422 * This routine is invoked to enable the MSI-X interrupt vectors to device 7423 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7424 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7425 * invoked, enables either all or nothing, depending on the current 7426 * availability of PCI vector resources. The device driver is responsible 7427 * for calling the individual request_irq() to register each MSI-X vector 7428 * with a interrupt handler, which is done in this function. Note that 7429 * later when device is unloading, the driver should always call free_irq() 7430 * on all MSI-X vectors it has done request_irq() on before calling 7431 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7432 * will be left with MSI-X enabled and leaks its vectors. 7433 * 7434 * Return codes 7435 * 0 - successful 7436 * other values - error 7437 **/ 7438 static int 7439 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7440 { 7441 int rc, i; 7442 LPFC_MBOXQ_t *pmb; 7443 7444 /* Set up MSI-X multi-message vectors */ 7445 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7446 phba->msix_entries[i].entry = i; 7447 7448 /* Configure MSI-X capability structure */ 7449 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7450 ARRAY_SIZE(phba->msix_entries)); 7451 if (rc) { 7452 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7453 "0420 PCI enable MSI-X failed (%d)\n", rc); 7454 goto msi_fail_out; 7455 } 7456 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7457 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7458 "0477 MSI-X entry[%d]: vector=x%x " 7459 "message=%d\n", i, 7460 phba->msix_entries[i].vector, 7461 phba->msix_entries[i].entry); 7462 /* 7463 * Assign MSI-X vectors to interrupt handlers 7464 */ 7465 7466 /* vector-0 is associated to slow-path handler */ 7467 rc = request_irq(phba->msix_entries[0].vector, 7468 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7469 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7470 if (rc) { 7471 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7472 "0421 MSI-X slow-path request_irq failed " 7473 "(%d)\n", rc); 7474 goto msi_fail_out; 7475 } 7476 7477 /* vector-1 is associated to fast-path handler */ 7478 rc = request_irq(phba->msix_entries[1].vector, 7479 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7480 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7481 7482 if (rc) { 7483 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7484 "0429 MSI-X fast-path request_irq failed " 7485 "(%d)\n", rc); 7486 goto irq_fail_out; 7487 } 7488 7489 /* 7490 * Configure HBA MSI-X attention conditions to messages 7491 */ 7492 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7493 7494 if (!pmb) { 7495 rc = -ENOMEM; 7496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7497 "0474 Unable to allocate memory for issuing " 7498 "MBOX_CONFIG_MSI command\n"); 7499 goto mem_fail_out; 7500 } 7501 rc = lpfc_config_msi(phba, pmb); 7502 if (rc) 7503 goto mbx_fail_out; 7504 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7505 if (rc != MBX_SUCCESS) { 7506 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7507 "0351 Config MSI mailbox command failed, " 7508 "mbxCmd x%x, mbxStatus x%x\n", 7509 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7510 goto mbx_fail_out; 7511 } 7512 7513 /* Free memory allocated for mailbox command */ 7514 mempool_free(pmb, phba->mbox_mem_pool); 7515 return rc; 7516 7517 mbx_fail_out: 7518 /* Free memory allocated for mailbox command */ 7519 mempool_free(pmb, phba->mbox_mem_pool); 7520 7521 mem_fail_out: 7522 /* free the irq already requested */ 7523 free_irq(phba->msix_entries[1].vector, phba); 7524 7525 irq_fail_out: 7526 /* free the irq already requested */ 7527 free_irq(phba->msix_entries[0].vector, phba); 7528 7529 msi_fail_out: 7530 /* Unconfigure MSI-X capability structure */ 7531 pci_disable_msix(phba->pcidev); 7532 return rc; 7533 } 7534 7535 /** 7536 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7537 * @phba: pointer to lpfc hba data structure. 7538 * 7539 * This routine is invoked to release the MSI-X vectors and then disable the 7540 * MSI-X interrupt mode to device with SLI-3 interface spec. 7541 **/ 7542 static void 7543 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7544 { 7545 int i; 7546 7547 /* Free up MSI-X multi-message vectors */ 7548 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7549 free_irq(phba->msix_entries[i].vector, phba); 7550 /* Disable MSI-X */ 7551 pci_disable_msix(phba->pcidev); 7552 7553 return; 7554 } 7555 7556 /** 7557 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7558 * @phba: pointer to lpfc hba data structure. 7559 * 7560 * This routine is invoked to enable the MSI interrupt mode to device with 7561 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7562 * enable the MSI vector. The device driver is responsible for calling the 7563 * request_irq() to register MSI vector with a interrupt the handler, which 7564 * is done in this function. 7565 * 7566 * Return codes 7567 * 0 - successful 7568 * other values - error 7569 */ 7570 static int 7571 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7572 { 7573 int rc; 7574 7575 rc = pci_enable_msi(phba->pcidev); 7576 if (!rc) 7577 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7578 "0462 PCI enable MSI mode success.\n"); 7579 else { 7580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7581 "0471 PCI enable MSI mode failed (%d)\n", rc); 7582 return rc; 7583 } 7584 7585 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7586 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7587 if (rc) { 7588 pci_disable_msi(phba->pcidev); 7589 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7590 "0478 MSI request_irq failed (%d)\n", rc); 7591 } 7592 return rc; 7593 } 7594 7595 /** 7596 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7597 * @phba: pointer to lpfc hba data structure. 7598 * 7599 * This routine is invoked to disable the MSI interrupt mode to device with 7600 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7601 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7602 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7603 * its vector. 7604 */ 7605 static void 7606 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7607 { 7608 free_irq(phba->pcidev->irq, phba); 7609 pci_disable_msi(phba->pcidev); 7610 return; 7611 } 7612 7613 /** 7614 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7615 * @phba: pointer to lpfc hba data structure. 7616 * 7617 * This routine is invoked to enable device interrupt and associate driver's 7618 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7619 * spec. Depends on the interrupt mode configured to the driver, the driver 7620 * will try to fallback from the configured interrupt mode to an interrupt 7621 * mode which is supported by the platform, kernel, and device in the order 7622 * of: 7623 * MSI-X -> MSI -> IRQ. 7624 * 7625 * Return codes 7626 * 0 - successful 7627 * other values - error 7628 **/ 7629 static uint32_t 7630 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7631 { 7632 uint32_t intr_mode = LPFC_INTR_ERROR; 7633 int retval; 7634 7635 if (cfg_mode == 2) { 7636 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7637 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7638 if (!retval) { 7639 /* Now, try to enable MSI-X interrupt mode */ 7640 retval = lpfc_sli_enable_msix(phba); 7641 if (!retval) { 7642 /* Indicate initialization to MSI-X mode */ 7643 phba->intr_type = MSIX; 7644 intr_mode = 2; 7645 } 7646 } 7647 } 7648 7649 /* Fallback to MSI if MSI-X initialization failed */ 7650 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7651 retval = lpfc_sli_enable_msi(phba); 7652 if (!retval) { 7653 /* Indicate initialization to MSI mode */ 7654 phba->intr_type = MSI; 7655 intr_mode = 1; 7656 } 7657 } 7658 7659 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7660 if (phba->intr_type == NONE) { 7661 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7662 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7663 if (!retval) { 7664 /* Indicate initialization to INTx mode */ 7665 phba->intr_type = INTx; 7666 intr_mode = 0; 7667 } 7668 } 7669 return intr_mode; 7670 } 7671 7672 /** 7673 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7674 * @phba: pointer to lpfc hba data structure. 7675 * 7676 * This routine is invoked to disable device interrupt and disassociate the 7677 * driver's interrupt handler(s) from interrupt vector(s) to device with 7678 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7679 * release the interrupt vector(s) for the message signaled interrupt. 7680 **/ 7681 static void 7682 lpfc_sli_disable_intr(struct lpfc_hba *phba) 7683 { 7684 /* Disable the currently initialized interrupt mode */ 7685 if (phba->intr_type == MSIX) 7686 lpfc_sli_disable_msix(phba); 7687 else if (phba->intr_type == MSI) 7688 lpfc_sli_disable_msi(phba); 7689 else if (phba->intr_type == INTx) 7690 free_irq(phba->pcidev->irq, phba); 7691 7692 /* Reset interrupt management states */ 7693 phba->intr_type = NONE; 7694 phba->sli.slistat.sli_intr = 0; 7695 7696 return; 7697 } 7698 7699 /** 7700 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7701 * @phba: pointer to lpfc hba data structure. 7702 * 7703 * This routine is invoked to enable the MSI-X interrupt vectors to device 7704 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7705 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7706 * enables either all or nothing, depending on the current availability of 7707 * PCI vector resources. The device driver is responsible for calling the 7708 * individual request_irq() to register each MSI-X vector with a interrupt 7709 * handler, which is done in this function. Note that later when device is 7710 * unloading, the driver should always call free_irq() on all MSI-X vectors 7711 * it has done request_irq() on before calling pci_disable_msix(). Failure 7712 * to do so results in a BUG_ON() and a device will be left with MSI-X 7713 * enabled and leaks its vectors. 7714 * 7715 * Return codes 7716 * 0 - successful 7717 * other values - error 7718 **/ 7719 static int 7720 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7721 { 7722 int vectors, rc, index; 7723 7724 /* Set up MSI-X multi-message vectors */ 7725 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7726 phba->sli4_hba.msix_entries[index].entry = index; 7727 7728 /* Configure MSI-X capability structure */ 7729 vectors = phba->sli4_hba.cfg_eqn; 7730 enable_msix_vectors: 7731 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7732 vectors); 7733 if (rc > 1) { 7734 vectors = rc; 7735 goto enable_msix_vectors; 7736 } else if (rc) { 7737 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7738 "0484 PCI enable MSI-X failed (%d)\n", rc); 7739 goto msi_fail_out; 7740 } 7741 7742 /* Log MSI-X vector assignment */ 7743 for (index = 0; index < vectors; index++) 7744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7745 "0489 MSI-X entry[%d]: vector=x%x " 7746 "message=%d\n", index, 7747 phba->sli4_hba.msix_entries[index].vector, 7748 phba->sli4_hba.msix_entries[index].entry); 7749 /* 7750 * Assign MSI-X vectors to interrupt handlers 7751 */ 7752 if (vectors > 1) 7753 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7754 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7755 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7756 else 7757 /* All Interrupts need to be handled by one EQ */ 7758 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7759 &lpfc_sli4_intr_handler, IRQF_SHARED, 7760 LPFC_DRIVER_NAME, phba); 7761 if (rc) { 7762 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7763 "0485 MSI-X slow-path request_irq failed " 7764 "(%d)\n", rc); 7765 goto msi_fail_out; 7766 } 7767 7768 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7769 for (index = 1; index < vectors; index++) { 7770 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7771 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7772 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7773 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7774 LPFC_FP_DRIVER_HANDLER_NAME, 7775 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7776 if (rc) { 7777 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7778 "0486 MSI-X fast-path (%d) " 7779 "request_irq failed (%d)\n", index, rc); 7780 goto cfg_fail_out; 7781 } 7782 } 7783 phba->sli4_hba.msix_vec_nr = vectors; 7784 7785 return rc; 7786 7787 cfg_fail_out: 7788 /* free the irq already requested */ 7789 for (--index; index >= 1; index--) 7790 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7791 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7792 7793 /* free the irq already requested */ 7794 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7795 7796 msi_fail_out: 7797 /* Unconfigure MSI-X capability structure */ 7798 pci_disable_msix(phba->pcidev); 7799 return rc; 7800 } 7801 7802 /** 7803 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7804 * @phba: pointer to lpfc hba data structure. 7805 * 7806 * This routine is invoked to release the MSI-X vectors and then disable the 7807 * MSI-X interrupt mode to device with SLI-4 interface spec. 7808 **/ 7809 static void 7810 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7811 { 7812 int index; 7813 7814 /* Free up MSI-X multi-message vectors */ 7815 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7816 7817 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 7818 free_irq(phba->sli4_hba.msix_entries[index].vector, 7819 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7820 7821 /* Disable MSI-X */ 7822 pci_disable_msix(phba->pcidev); 7823 7824 return; 7825 } 7826 7827 /** 7828 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 7829 * @phba: pointer to lpfc hba data structure. 7830 * 7831 * This routine is invoked to enable the MSI interrupt mode to device with 7832 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 7833 * to enable the MSI vector. The device driver is responsible for calling 7834 * the request_irq() to register MSI vector with a interrupt the handler, 7835 * which is done in this function. 7836 * 7837 * Return codes 7838 * 0 - successful 7839 * other values - error 7840 **/ 7841 static int 7842 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 7843 { 7844 int rc, index; 7845 7846 rc = pci_enable_msi(phba->pcidev); 7847 if (!rc) 7848 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7849 "0487 PCI enable MSI mode success.\n"); 7850 else { 7851 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7852 "0488 PCI enable MSI mode failed (%d)\n", rc); 7853 return rc; 7854 } 7855 7856 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7857 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7858 if (rc) { 7859 pci_disable_msi(phba->pcidev); 7860 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7861 "0490 MSI request_irq failed (%d)\n", rc); 7862 return rc; 7863 } 7864 7865 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 7866 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7867 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7868 } 7869 7870 return 0; 7871 } 7872 7873 /** 7874 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 7875 * @phba: pointer to lpfc hba data structure. 7876 * 7877 * This routine is invoked to disable the MSI interrupt mode to device with 7878 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 7879 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7880 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7881 * its vector. 7882 **/ 7883 static void 7884 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 7885 { 7886 free_irq(phba->pcidev->irq, phba); 7887 pci_disable_msi(phba->pcidev); 7888 return; 7889 } 7890 7891 /** 7892 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 7893 * @phba: pointer to lpfc hba data structure. 7894 * 7895 * This routine is invoked to enable device interrupt and associate driver's 7896 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 7897 * interface spec. Depends on the interrupt mode configured to the driver, 7898 * the driver will try to fallback from the configured interrupt mode to an 7899 * interrupt mode which is supported by the platform, kernel, and device in 7900 * the order of: 7901 * MSI-X -> MSI -> IRQ. 7902 * 7903 * Return codes 7904 * 0 - successful 7905 * other values - error 7906 **/ 7907 static uint32_t 7908 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7909 { 7910 uint32_t intr_mode = LPFC_INTR_ERROR; 7911 int retval, index; 7912 7913 if (cfg_mode == 2) { 7914 /* Preparation before conf_msi mbox cmd */ 7915 retval = 0; 7916 if (!retval) { 7917 /* Now, try to enable MSI-X interrupt mode */ 7918 retval = lpfc_sli4_enable_msix(phba); 7919 if (!retval) { 7920 /* Indicate initialization to MSI-X mode */ 7921 phba->intr_type = MSIX; 7922 intr_mode = 2; 7923 } 7924 } 7925 } 7926 7927 /* Fallback to MSI if MSI-X initialization failed */ 7928 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7929 retval = lpfc_sli4_enable_msi(phba); 7930 if (!retval) { 7931 /* Indicate initialization to MSI mode */ 7932 phba->intr_type = MSI; 7933 intr_mode = 1; 7934 } 7935 } 7936 7937 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7938 if (phba->intr_type == NONE) { 7939 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 7940 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7941 if (!retval) { 7942 /* Indicate initialization to INTx mode */ 7943 phba->intr_type = INTx; 7944 intr_mode = 0; 7945 for (index = 0; index < phba->cfg_fcp_eq_count; 7946 index++) { 7947 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 7948 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 7949 } 7950 } 7951 } 7952 return intr_mode; 7953 } 7954 7955 /** 7956 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 7957 * @phba: pointer to lpfc hba data structure. 7958 * 7959 * This routine is invoked to disable device interrupt and disassociate 7960 * the driver's interrupt handler(s) from interrupt vector(s) to device 7961 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 7962 * will release the interrupt vector(s) for the message signaled interrupt. 7963 **/ 7964 static void 7965 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 7966 { 7967 /* Disable the currently initialized interrupt mode */ 7968 if (phba->intr_type == MSIX) 7969 lpfc_sli4_disable_msix(phba); 7970 else if (phba->intr_type == MSI) 7971 lpfc_sli4_disable_msi(phba); 7972 else if (phba->intr_type == INTx) 7973 free_irq(phba->pcidev->irq, phba); 7974 7975 /* Reset interrupt management states */ 7976 phba->intr_type = NONE; 7977 phba->sli.slistat.sli_intr = 0; 7978 7979 return; 7980 } 7981 7982 /** 7983 * lpfc_unset_hba - Unset SLI3 hba device initialization 7984 * @phba: pointer to lpfc hba data structure. 7985 * 7986 * This routine is invoked to unset the HBA device initialization steps to 7987 * a device with SLI-3 interface spec. 7988 **/ 7989 static void 7990 lpfc_unset_hba(struct lpfc_hba *phba) 7991 { 7992 struct lpfc_vport *vport = phba->pport; 7993 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 7994 7995 spin_lock_irq(shost->host_lock); 7996 vport->load_flag |= FC_UNLOADING; 7997 spin_unlock_irq(shost->host_lock); 7998 7999 lpfc_stop_hba_timers(phba); 8000 8001 phba->pport->work_port_events = 0; 8002 8003 lpfc_sli_hba_down(phba); 8004 8005 lpfc_sli_brdrestart(phba); 8006 8007 lpfc_sli_disable_intr(phba); 8008 8009 return; 8010 } 8011 8012 /** 8013 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8014 * @phba: pointer to lpfc hba data structure. 8015 * 8016 * This routine is invoked to unset the HBA device initialization steps to 8017 * a device with SLI-4 interface spec. 8018 **/ 8019 static void 8020 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8021 { 8022 struct lpfc_vport *vport = phba->pport; 8023 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8024 8025 spin_lock_irq(shost->host_lock); 8026 vport->load_flag |= FC_UNLOADING; 8027 spin_unlock_irq(shost->host_lock); 8028 8029 phba->pport->work_port_events = 0; 8030 8031 /* Stop the SLI4 device port */ 8032 lpfc_stop_port(phba); 8033 8034 lpfc_sli4_disable_intr(phba); 8035 8036 /* Reset SLI4 HBA FCoE function */ 8037 lpfc_pci_function_reset(phba); 8038 lpfc_sli4_queue_destroy(phba); 8039 8040 return; 8041 } 8042 8043 /** 8044 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8045 * @phba: Pointer to HBA context object. 8046 * 8047 * This function is called in the SLI4 code path to wait for completion 8048 * of device's XRIs exchange busy. It will check the XRI exchange busy 8049 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8050 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8051 * I/Os every 30 seconds, log error message, and wait forever. Only when 8052 * all XRI exchange busy complete, the driver unload shall proceed with 8053 * invoking the function reset ioctl mailbox command to the CNA and the 8054 * the rest of the driver unload resource release. 8055 **/ 8056 static void 8057 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8058 { 8059 int wait_time = 0; 8060 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8061 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8062 8063 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8064 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8065 if (!fcp_xri_cmpl) 8066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8067 "2877 FCP XRI exchange busy " 8068 "wait time: %d seconds.\n", 8069 wait_time/1000); 8070 if (!els_xri_cmpl) 8071 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8072 "2878 ELS XRI exchange busy " 8073 "wait time: %d seconds.\n", 8074 wait_time/1000); 8075 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8076 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8077 } else { 8078 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8079 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8080 } 8081 fcp_xri_cmpl = 8082 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8083 els_xri_cmpl = 8084 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8085 } 8086 } 8087 8088 /** 8089 * lpfc_sli4_hba_unset - Unset the fcoe hba 8090 * @phba: Pointer to HBA context object. 8091 * 8092 * This function is called in the SLI4 code path to reset the HBA's FCoE 8093 * function. The caller is not required to hold any lock. This routine 8094 * issues PCI function reset mailbox command to reset the FCoE function. 8095 * At the end of the function, it calls lpfc_hba_down_post function to 8096 * free any pending commands. 8097 **/ 8098 static void 8099 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8100 { 8101 int wait_cnt = 0; 8102 LPFC_MBOXQ_t *mboxq; 8103 struct pci_dev *pdev = phba->pcidev; 8104 8105 lpfc_stop_hba_timers(phba); 8106 phba->sli4_hba.intr_enable = 0; 8107 8108 /* 8109 * Gracefully wait out the potential current outstanding asynchronous 8110 * mailbox command. 8111 */ 8112 8113 /* First, block any pending async mailbox command from posted */ 8114 spin_lock_irq(&phba->hbalock); 8115 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8116 spin_unlock_irq(&phba->hbalock); 8117 /* Now, trying to wait it out if we can */ 8118 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8119 msleep(10); 8120 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8121 break; 8122 } 8123 /* Forcefully release the outstanding mailbox command if timed out */ 8124 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8125 spin_lock_irq(&phba->hbalock); 8126 mboxq = phba->sli.mbox_active; 8127 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8128 __lpfc_mbox_cmpl_put(phba, mboxq); 8129 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8130 phba->sli.mbox_active = NULL; 8131 spin_unlock_irq(&phba->hbalock); 8132 } 8133 8134 /* Abort all iocbs associated with the hba */ 8135 lpfc_sli_hba_iocb_abort(phba); 8136 8137 /* Wait for completion of device XRI exchange busy */ 8138 lpfc_sli4_xri_exchange_busy_wait(phba); 8139 8140 /* Disable PCI subsystem interrupt */ 8141 lpfc_sli4_disable_intr(phba); 8142 8143 /* Disable SR-IOV if enabled */ 8144 if (phba->cfg_sriov_nr_virtfn) 8145 pci_disable_sriov(pdev); 8146 8147 /* Stop kthread signal shall trigger work_done one more time */ 8148 kthread_stop(phba->worker_thread); 8149 8150 /* Reset SLI4 HBA FCoE function */ 8151 lpfc_pci_function_reset(phba); 8152 lpfc_sli4_queue_destroy(phba); 8153 8154 /* Stop the SLI4 device port */ 8155 phba->pport->work_port_events = 0; 8156 } 8157 8158 /** 8159 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8160 * @phba: Pointer to HBA context object. 8161 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8162 * 8163 * This function is called in the SLI4 code path to read the port's 8164 * sli4 capabilities. 8165 * 8166 * This function may be be called from any context that can block-wait 8167 * for the completion. The expectation is that this routine is called 8168 * typically from probe_one or from the online routine. 8169 **/ 8170 int 8171 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8172 { 8173 int rc; 8174 struct lpfc_mqe *mqe; 8175 struct lpfc_pc_sli4_params *sli4_params; 8176 uint32_t mbox_tmo; 8177 8178 rc = 0; 8179 mqe = &mboxq->u.mqe; 8180 8181 /* Read the port's SLI4 Parameters port capabilities */ 8182 lpfc_pc_sli4_params(mboxq); 8183 if (!phba->sli4_hba.intr_enable) 8184 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8185 else { 8186 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8187 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8188 } 8189 8190 if (unlikely(rc)) 8191 return 1; 8192 8193 sli4_params = &phba->sli4_hba.pc_sli4_params; 8194 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8195 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8196 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8197 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8198 &mqe->un.sli4_params); 8199 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8200 &mqe->un.sli4_params); 8201 sli4_params->proto_types = mqe->un.sli4_params.word3; 8202 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8203 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8204 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8205 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8206 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8207 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8208 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8209 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8210 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8211 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8212 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8213 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8214 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8215 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8216 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8217 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8218 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8219 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8220 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8221 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8222 8223 /* Make sure that sge_supp_len can be handled by the driver */ 8224 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8225 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8226 8227 return rc; 8228 } 8229 8230 /** 8231 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8232 * @phba: Pointer to HBA context object. 8233 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8234 * 8235 * This function is called in the SLI4 code path to read the port's 8236 * sli4 capabilities. 8237 * 8238 * This function may be be called from any context that can block-wait 8239 * for the completion. The expectation is that this routine is called 8240 * typically from probe_one or from the online routine. 8241 **/ 8242 int 8243 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8244 { 8245 int rc; 8246 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8247 struct lpfc_pc_sli4_params *sli4_params; 8248 uint32_t mbox_tmo; 8249 int length; 8250 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8251 8252 /* 8253 * By default, the driver assumes the SLI4 port requires RPI 8254 * header postings. The SLI4_PARAM response will correct this 8255 * assumption. 8256 */ 8257 phba->sli4_hba.rpi_hdrs_in_use = 1; 8258 8259 /* Read the port's SLI4 Config Parameters */ 8260 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8261 sizeof(struct lpfc_sli4_cfg_mhdr)); 8262 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8263 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8264 length, LPFC_SLI4_MBX_EMBED); 8265 if (!phba->sli4_hba.intr_enable) 8266 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8267 else { 8268 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8269 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8270 } 8271 if (unlikely(rc)) 8272 return rc; 8273 sli4_params = &phba->sli4_hba.pc_sli4_params; 8274 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8275 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8276 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8277 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8278 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8279 mbx_sli4_parameters); 8280 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8281 mbx_sli4_parameters); 8282 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8283 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8284 else 8285 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8286 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8287 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8288 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8289 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8290 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8291 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8292 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8293 mbx_sli4_parameters); 8294 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8295 mbx_sli4_parameters); 8296 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8297 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8298 8299 /* Make sure that sge_supp_len can be handled by the driver */ 8300 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8301 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8302 8303 return 0; 8304 } 8305 8306 /** 8307 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8308 * @pdev: pointer to PCI device 8309 * @pid: pointer to PCI device identifier 8310 * 8311 * This routine is to be called to attach a device with SLI-3 interface spec 8312 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8313 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8314 * information of the device and driver to see if the driver state that it can 8315 * support this kind of device. If the match is successful, the driver core 8316 * invokes this routine. If this routine determines it can claim the HBA, it 8317 * does all the initialization that it needs to do to handle the HBA properly. 8318 * 8319 * Return code 8320 * 0 - driver can claim the device 8321 * negative value - driver can not claim the device 8322 **/ 8323 static int __devinit 8324 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8325 { 8326 struct lpfc_hba *phba; 8327 struct lpfc_vport *vport = NULL; 8328 struct Scsi_Host *shost = NULL; 8329 int error; 8330 uint32_t cfg_mode, intr_mode; 8331 8332 /* Allocate memory for HBA structure */ 8333 phba = lpfc_hba_alloc(pdev); 8334 if (!phba) 8335 return -ENOMEM; 8336 8337 /* Perform generic PCI device enabling operation */ 8338 error = lpfc_enable_pci_dev(phba); 8339 if (error) 8340 goto out_free_phba; 8341 8342 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8343 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8344 if (error) 8345 goto out_disable_pci_dev; 8346 8347 /* Set up SLI-3 specific device PCI memory space */ 8348 error = lpfc_sli_pci_mem_setup(phba); 8349 if (error) { 8350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8351 "1402 Failed to set up pci memory space.\n"); 8352 goto out_disable_pci_dev; 8353 } 8354 8355 /* Set up phase-1 common device driver resources */ 8356 error = lpfc_setup_driver_resource_phase1(phba); 8357 if (error) { 8358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8359 "1403 Failed to set up driver resource.\n"); 8360 goto out_unset_pci_mem_s3; 8361 } 8362 8363 /* Set up SLI-3 specific device driver resources */ 8364 error = lpfc_sli_driver_resource_setup(phba); 8365 if (error) { 8366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8367 "1404 Failed to set up driver resource.\n"); 8368 goto out_unset_pci_mem_s3; 8369 } 8370 8371 /* Initialize and populate the iocb list per host */ 8372 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8373 if (error) { 8374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8375 "1405 Failed to initialize iocb list.\n"); 8376 goto out_unset_driver_resource_s3; 8377 } 8378 8379 /* Set up common device driver resources */ 8380 error = lpfc_setup_driver_resource_phase2(phba); 8381 if (error) { 8382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8383 "1406 Failed to set up driver resource.\n"); 8384 goto out_free_iocb_list; 8385 } 8386 8387 /* Get the default values for Model Name and Description */ 8388 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8389 8390 /* Create SCSI host to the physical port */ 8391 error = lpfc_create_shost(phba); 8392 if (error) { 8393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8394 "1407 Failed to create scsi host.\n"); 8395 goto out_unset_driver_resource; 8396 } 8397 8398 /* Configure sysfs attributes */ 8399 vport = phba->pport; 8400 error = lpfc_alloc_sysfs_attr(vport); 8401 if (error) { 8402 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8403 "1476 Failed to allocate sysfs attr\n"); 8404 goto out_destroy_shost; 8405 } 8406 8407 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8408 /* Now, trying to enable interrupt and bring up the device */ 8409 cfg_mode = phba->cfg_use_msi; 8410 while (true) { 8411 /* Put device to a known state before enabling interrupt */ 8412 lpfc_stop_port(phba); 8413 /* Configure and enable interrupt */ 8414 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8415 if (intr_mode == LPFC_INTR_ERROR) { 8416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8417 "0431 Failed to enable interrupt.\n"); 8418 error = -ENODEV; 8419 goto out_free_sysfs_attr; 8420 } 8421 /* SLI-3 HBA setup */ 8422 if (lpfc_sli_hba_setup(phba)) { 8423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8424 "1477 Failed to set up hba\n"); 8425 error = -ENODEV; 8426 goto out_remove_device; 8427 } 8428 8429 /* Wait 50ms for the interrupts of previous mailbox commands */ 8430 msleep(50); 8431 /* Check active interrupts on message signaled interrupts */ 8432 if (intr_mode == 0 || 8433 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8434 /* Log the current active interrupt mode */ 8435 phba->intr_mode = intr_mode; 8436 lpfc_log_intr_mode(phba, intr_mode); 8437 break; 8438 } else { 8439 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8440 "0447 Configure interrupt mode (%d) " 8441 "failed active interrupt test.\n", 8442 intr_mode); 8443 /* Disable the current interrupt mode */ 8444 lpfc_sli_disable_intr(phba); 8445 /* Try next level of interrupt mode */ 8446 cfg_mode = --intr_mode; 8447 } 8448 } 8449 8450 /* Perform post initialization setup */ 8451 lpfc_post_init_setup(phba); 8452 8453 /* Check if there are static vports to be created. */ 8454 lpfc_create_static_vport(phba); 8455 8456 return 0; 8457 8458 out_remove_device: 8459 lpfc_unset_hba(phba); 8460 out_free_sysfs_attr: 8461 lpfc_free_sysfs_attr(vport); 8462 out_destroy_shost: 8463 lpfc_destroy_shost(phba); 8464 out_unset_driver_resource: 8465 lpfc_unset_driver_resource_phase2(phba); 8466 out_free_iocb_list: 8467 lpfc_free_iocb_list(phba); 8468 out_unset_driver_resource_s3: 8469 lpfc_sli_driver_resource_unset(phba); 8470 out_unset_pci_mem_s3: 8471 lpfc_sli_pci_mem_unset(phba); 8472 out_disable_pci_dev: 8473 lpfc_disable_pci_dev(phba); 8474 if (shost) 8475 scsi_host_put(shost); 8476 out_free_phba: 8477 lpfc_hba_free(phba); 8478 return error; 8479 } 8480 8481 /** 8482 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8483 * @pdev: pointer to PCI device 8484 * 8485 * This routine is to be called to disattach a device with SLI-3 interface 8486 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8487 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8488 * device to be removed from the PCI subsystem properly. 8489 **/ 8490 static void __devexit 8491 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8492 { 8493 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8494 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8495 struct lpfc_vport **vports; 8496 struct lpfc_hba *phba = vport->phba; 8497 int i; 8498 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8499 8500 spin_lock_irq(&phba->hbalock); 8501 vport->load_flag |= FC_UNLOADING; 8502 spin_unlock_irq(&phba->hbalock); 8503 8504 lpfc_free_sysfs_attr(vport); 8505 8506 /* Release all the vports against this physical port */ 8507 vports = lpfc_create_vport_work_array(phba); 8508 if (vports != NULL) 8509 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8510 fc_vport_terminate(vports[i]->fc_vport); 8511 lpfc_destroy_vport_work_array(phba, vports); 8512 8513 /* Remove FC host and then SCSI host with the physical port */ 8514 fc_remove_host(shost); 8515 scsi_remove_host(shost); 8516 lpfc_cleanup(vport); 8517 8518 /* 8519 * Bring down the SLI Layer. This step disable all interrupts, 8520 * clears the rings, discards all mailbox commands, and resets 8521 * the HBA. 8522 */ 8523 8524 /* HBA interrupt will be disabled after this call */ 8525 lpfc_sli_hba_down(phba); 8526 /* Stop kthread signal shall trigger work_done one more time */ 8527 kthread_stop(phba->worker_thread); 8528 /* Final cleanup of txcmplq and reset the HBA */ 8529 lpfc_sli_brdrestart(phba); 8530 8531 lpfc_stop_hba_timers(phba); 8532 spin_lock_irq(&phba->hbalock); 8533 list_del_init(&vport->listentry); 8534 spin_unlock_irq(&phba->hbalock); 8535 8536 lpfc_debugfs_terminate(vport); 8537 8538 /* Disable SR-IOV if enabled */ 8539 if (phba->cfg_sriov_nr_virtfn) 8540 pci_disable_sriov(pdev); 8541 8542 /* Disable interrupt */ 8543 lpfc_sli_disable_intr(phba); 8544 8545 pci_set_drvdata(pdev, NULL); 8546 scsi_host_put(shost); 8547 8548 /* 8549 * Call scsi_free before mem_free since scsi bufs are released to their 8550 * corresponding pools here. 8551 */ 8552 lpfc_scsi_free(phba); 8553 lpfc_mem_free_all(phba); 8554 8555 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8556 phba->hbqslimp.virt, phba->hbqslimp.phys); 8557 8558 /* Free resources associated with SLI2 interface */ 8559 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8560 phba->slim2p.virt, phba->slim2p.phys); 8561 8562 /* unmap adapter SLIM and Control Registers */ 8563 iounmap(phba->ctrl_regs_memmap_p); 8564 iounmap(phba->slim_memmap_p); 8565 8566 lpfc_hba_free(phba); 8567 8568 pci_release_selected_regions(pdev, bars); 8569 pci_disable_device(pdev); 8570 } 8571 8572 /** 8573 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8574 * @pdev: pointer to PCI device 8575 * @msg: power management message 8576 * 8577 * This routine is to be called from the kernel's PCI subsystem to support 8578 * system Power Management (PM) to device with SLI-3 interface spec. When 8579 * PM invokes this method, it quiesces the device by stopping the driver's 8580 * worker thread for the device, turning off device's interrupt and DMA, 8581 * and bring the device offline. Note that as the driver implements the 8582 * minimum PM requirements to a power-aware driver's PM support for the 8583 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8584 * to the suspend() method call will be treated as SUSPEND and the driver will 8585 * fully reinitialize its device during resume() method call, the driver will 8586 * set device to PCI_D3hot state in PCI config space instead of setting it 8587 * according to the @msg provided by the PM. 8588 * 8589 * Return code 8590 * 0 - driver suspended the device 8591 * Error otherwise 8592 **/ 8593 static int 8594 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8595 { 8596 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8597 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8598 8599 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8600 "0473 PCI device Power Management suspend.\n"); 8601 8602 /* Bring down the device */ 8603 lpfc_offline_prep(phba); 8604 lpfc_offline(phba); 8605 kthread_stop(phba->worker_thread); 8606 8607 /* Disable interrupt from device */ 8608 lpfc_sli_disable_intr(phba); 8609 8610 /* Save device state to PCI config space */ 8611 pci_save_state(pdev); 8612 pci_set_power_state(pdev, PCI_D3hot); 8613 8614 return 0; 8615 } 8616 8617 /** 8618 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8619 * @pdev: pointer to PCI device 8620 * 8621 * This routine is to be called from the kernel's PCI subsystem to support 8622 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8623 * invokes this method, it restores the device's PCI config space state and 8624 * fully reinitializes the device and brings it online. Note that as the 8625 * driver implements the minimum PM requirements to a power-aware driver's 8626 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8627 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8628 * driver will fully reinitialize its device during resume() method call, 8629 * the device will be set to PCI_D0 directly in PCI config space before 8630 * restoring the state. 8631 * 8632 * Return code 8633 * 0 - driver suspended the device 8634 * Error otherwise 8635 **/ 8636 static int 8637 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8638 { 8639 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8640 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8641 uint32_t intr_mode; 8642 int error; 8643 8644 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8645 "0452 PCI device Power Management resume.\n"); 8646 8647 /* Restore device state from PCI config space */ 8648 pci_set_power_state(pdev, PCI_D0); 8649 pci_restore_state(pdev); 8650 8651 /* 8652 * As the new kernel behavior of pci_restore_state() API call clears 8653 * device saved_state flag, need to save the restored state again. 8654 */ 8655 pci_save_state(pdev); 8656 8657 if (pdev->is_busmaster) 8658 pci_set_master(pdev); 8659 8660 /* Startup the kernel thread for this host adapter. */ 8661 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8662 "lpfc_worker_%d", phba->brd_no); 8663 if (IS_ERR(phba->worker_thread)) { 8664 error = PTR_ERR(phba->worker_thread); 8665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8666 "0434 PM resume failed to start worker " 8667 "thread: error=x%x.\n", error); 8668 return error; 8669 } 8670 8671 /* Configure and enable interrupt */ 8672 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8673 if (intr_mode == LPFC_INTR_ERROR) { 8674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8675 "0430 PM resume Failed to enable interrupt\n"); 8676 return -EIO; 8677 } else 8678 phba->intr_mode = intr_mode; 8679 8680 /* Restart HBA and bring it online */ 8681 lpfc_sli_brdrestart(phba); 8682 lpfc_online(phba); 8683 8684 /* Log the current active interrupt mode */ 8685 lpfc_log_intr_mode(phba, phba->intr_mode); 8686 8687 return 0; 8688 } 8689 8690 /** 8691 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8692 * @phba: pointer to lpfc hba data structure. 8693 * 8694 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8695 * aborts all the outstanding SCSI I/Os to the pci device. 8696 **/ 8697 static void 8698 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8699 { 8700 struct lpfc_sli *psli = &phba->sli; 8701 struct lpfc_sli_ring *pring; 8702 8703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8704 "2723 PCI channel I/O abort preparing for recovery\n"); 8705 8706 /* 8707 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8708 * and let the SCSI mid-layer to retry them to recover. 8709 */ 8710 pring = &psli->ring[psli->fcp_ring]; 8711 lpfc_sli_abort_iocb_ring(phba, pring); 8712 } 8713 8714 /** 8715 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8716 * @phba: pointer to lpfc hba data structure. 8717 * 8718 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8719 * disables the device interrupt and pci device, and aborts the internal FCP 8720 * pending I/Os. 8721 **/ 8722 static void 8723 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8724 { 8725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8726 "2710 PCI channel disable preparing for reset\n"); 8727 8728 /* Block any management I/Os to the device */ 8729 lpfc_block_mgmt_io(phba); 8730 8731 /* Block all SCSI devices' I/Os on the host */ 8732 lpfc_scsi_dev_block(phba); 8733 8734 /* stop all timers */ 8735 lpfc_stop_hba_timers(phba); 8736 8737 /* Disable interrupt and pci device */ 8738 lpfc_sli_disable_intr(phba); 8739 pci_disable_device(phba->pcidev); 8740 8741 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8742 lpfc_sli_flush_fcp_rings(phba); 8743 } 8744 8745 /** 8746 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8747 * @phba: pointer to lpfc hba data structure. 8748 * 8749 * This routine is called to prepare the SLI3 device for PCI slot permanently 8750 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8751 * pending I/Os. 8752 **/ 8753 static void 8754 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8755 { 8756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8757 "2711 PCI channel permanent disable for failure\n"); 8758 /* Block all SCSI devices' I/Os on the host */ 8759 lpfc_scsi_dev_block(phba); 8760 8761 /* stop all timers */ 8762 lpfc_stop_hba_timers(phba); 8763 8764 /* Clean up all driver's outstanding SCSI I/Os */ 8765 lpfc_sli_flush_fcp_rings(phba); 8766 } 8767 8768 /** 8769 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8770 * @pdev: pointer to PCI device. 8771 * @state: the current PCI connection state. 8772 * 8773 * This routine is called from the PCI subsystem for I/O error handling to 8774 * device with SLI-3 interface spec. This function is called by the PCI 8775 * subsystem after a PCI bus error affecting this device has been detected. 8776 * When this function is invoked, it will need to stop all the I/Os and 8777 * interrupt(s) to the device. Once that is done, it will return 8778 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8779 * as desired. 8780 * 8781 * Return codes 8782 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8783 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8784 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8785 **/ 8786 static pci_ers_result_t 8787 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8788 { 8789 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8790 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8791 8792 switch (state) { 8793 case pci_channel_io_normal: 8794 /* Non-fatal error, prepare for recovery */ 8795 lpfc_sli_prep_dev_for_recover(phba); 8796 return PCI_ERS_RESULT_CAN_RECOVER; 8797 case pci_channel_io_frozen: 8798 /* Fatal error, prepare for slot reset */ 8799 lpfc_sli_prep_dev_for_reset(phba); 8800 return PCI_ERS_RESULT_NEED_RESET; 8801 case pci_channel_io_perm_failure: 8802 /* Permanent failure, prepare for device down */ 8803 lpfc_sli_prep_dev_for_perm_failure(phba); 8804 return PCI_ERS_RESULT_DISCONNECT; 8805 default: 8806 /* Unknown state, prepare and request slot reset */ 8807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8808 "0472 Unknown PCI error state: x%x\n", state); 8809 lpfc_sli_prep_dev_for_reset(phba); 8810 return PCI_ERS_RESULT_NEED_RESET; 8811 } 8812 } 8813 8814 /** 8815 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 8816 * @pdev: pointer to PCI device. 8817 * 8818 * This routine is called from the PCI subsystem for error handling to 8819 * device with SLI-3 interface spec. This is called after PCI bus has been 8820 * reset to restart the PCI card from scratch, as if from a cold-boot. 8821 * During the PCI subsystem error recovery, after driver returns 8822 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 8823 * recovery and then call this routine before calling the .resume method 8824 * to recover the device. This function will initialize the HBA device, 8825 * enable the interrupt, but it will just put the HBA to offline state 8826 * without passing any I/O traffic. 8827 * 8828 * Return codes 8829 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 8830 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8831 */ 8832 static pci_ers_result_t 8833 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 8834 { 8835 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8836 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8837 struct lpfc_sli *psli = &phba->sli; 8838 uint32_t intr_mode; 8839 8840 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 8841 if (pci_enable_device_mem(pdev)) { 8842 printk(KERN_ERR "lpfc: Cannot re-enable " 8843 "PCI device after reset.\n"); 8844 return PCI_ERS_RESULT_DISCONNECT; 8845 } 8846 8847 pci_restore_state(pdev); 8848 8849 /* 8850 * As the new kernel behavior of pci_restore_state() API call clears 8851 * device saved_state flag, need to save the restored state again. 8852 */ 8853 pci_save_state(pdev); 8854 8855 if (pdev->is_busmaster) 8856 pci_set_master(pdev); 8857 8858 spin_lock_irq(&phba->hbalock); 8859 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 8860 spin_unlock_irq(&phba->hbalock); 8861 8862 /* Configure and enable interrupt */ 8863 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 8864 if (intr_mode == LPFC_INTR_ERROR) { 8865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8866 "0427 Cannot re-enable interrupt after " 8867 "slot reset.\n"); 8868 return PCI_ERS_RESULT_DISCONNECT; 8869 } else 8870 phba->intr_mode = intr_mode; 8871 8872 /* Take device offline, it will perform cleanup */ 8873 lpfc_offline_prep(phba); 8874 lpfc_offline(phba); 8875 lpfc_sli_brdrestart(phba); 8876 8877 /* Log the current active interrupt mode */ 8878 lpfc_log_intr_mode(phba, phba->intr_mode); 8879 8880 return PCI_ERS_RESULT_RECOVERED; 8881 } 8882 8883 /** 8884 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 8885 * @pdev: pointer to PCI device 8886 * 8887 * This routine is called from the PCI subsystem for error handling to device 8888 * with SLI-3 interface spec. It is called when kernel error recovery tells 8889 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 8890 * error recovery. After this call, traffic can start to flow from this device 8891 * again. 8892 */ 8893 static void 8894 lpfc_io_resume_s3(struct pci_dev *pdev) 8895 { 8896 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8897 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8898 8899 /* Bring device online, it will be no-op for non-fatal error resume */ 8900 lpfc_online(phba); 8901 8902 /* Clean up Advanced Error Reporting (AER) if needed */ 8903 if (phba->hba_flag & HBA_AER_ENABLED) 8904 pci_cleanup_aer_uncorrect_error_status(pdev); 8905 } 8906 8907 /** 8908 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 8909 * @phba: pointer to lpfc hba data structure. 8910 * 8911 * returns the number of ELS/CT IOCBs to reserve 8912 **/ 8913 int 8914 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 8915 { 8916 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 8917 8918 if (phba->sli_rev == LPFC_SLI_REV4) { 8919 if (max_xri <= 100) 8920 return 10; 8921 else if (max_xri <= 256) 8922 return 25; 8923 else if (max_xri <= 512) 8924 return 50; 8925 else if (max_xri <= 1024) 8926 return 100; 8927 else 8928 return 150; 8929 } else 8930 return 0; 8931 } 8932 8933 /** 8934 * lpfc_write_firmware - attempt to write a firmware image to the port 8935 * @phba: pointer to lpfc hba data structure. 8936 * @fw: pointer to firmware image returned from request_firmware. 8937 * 8938 * returns the number of bytes written if write is successful. 8939 * returns a negative error value if there were errors. 8940 * returns 0 if firmware matches currently active firmware on port. 8941 **/ 8942 int 8943 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 8944 { 8945 char fwrev[32]; 8946 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 8947 struct list_head dma_buffer_list; 8948 int i, rc = 0; 8949 struct lpfc_dmabuf *dmabuf, *next; 8950 uint32_t offset = 0, temp_offset = 0; 8951 8952 INIT_LIST_HEAD(&dma_buffer_list); 8953 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 8954 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 8955 LPFC_FILE_TYPE_GROUP) || 8956 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 8957 (be32_to_cpu(image->size) != fw->size)) { 8958 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8959 "3022 Invalid FW image found. " 8960 "Magic:%x Type:%x ID:%x\n", 8961 be32_to_cpu(image->magic_number), 8962 bf_get_be32(lpfc_grp_hdr_file_type, image), 8963 bf_get_be32(lpfc_grp_hdr_id, image)); 8964 return -EINVAL; 8965 } 8966 lpfc_decode_firmware_rev(phba, fwrev, 1); 8967 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 8968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8969 "3023 Updating Firmware. Current Version:%s " 8970 "New Version:%s\n", 8971 fwrev, image->revision); 8972 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 8973 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 8974 GFP_KERNEL); 8975 if (!dmabuf) { 8976 rc = -ENOMEM; 8977 goto out; 8978 } 8979 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 8980 SLI4_PAGE_SIZE, 8981 &dmabuf->phys, 8982 GFP_KERNEL); 8983 if (!dmabuf->virt) { 8984 kfree(dmabuf); 8985 rc = -ENOMEM; 8986 goto out; 8987 } 8988 list_add_tail(&dmabuf->list, &dma_buffer_list); 8989 } 8990 while (offset < fw->size) { 8991 temp_offset = offset; 8992 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 8993 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 8994 memcpy(dmabuf->virt, 8995 fw->data + temp_offset, 8996 fw->size - temp_offset); 8997 temp_offset = fw->size; 8998 break; 8999 } 9000 memcpy(dmabuf->virt, fw->data + temp_offset, 9001 SLI4_PAGE_SIZE); 9002 temp_offset += SLI4_PAGE_SIZE; 9003 } 9004 rc = lpfc_wr_object(phba, &dma_buffer_list, 9005 (fw->size - offset), &offset); 9006 if (rc) { 9007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9008 "3024 Firmware update failed. " 9009 "%d\n", rc); 9010 goto out; 9011 } 9012 } 9013 rc = offset; 9014 } 9015 out: 9016 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9017 list_del(&dmabuf->list); 9018 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9019 dmabuf->virt, dmabuf->phys); 9020 kfree(dmabuf); 9021 } 9022 return rc; 9023 } 9024 9025 /** 9026 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9027 * @pdev: pointer to PCI device 9028 * @pid: pointer to PCI device identifier 9029 * 9030 * This routine is called from the kernel's PCI subsystem to device with 9031 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9032 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9033 * information of the device and driver to see if the driver state that it 9034 * can support this kind of device. If the match is successful, the driver 9035 * core invokes this routine. If this routine determines it can claim the HBA, 9036 * it does all the initialization that it needs to do to handle the HBA 9037 * properly. 9038 * 9039 * Return code 9040 * 0 - driver can claim the device 9041 * negative value - driver can not claim the device 9042 **/ 9043 static int __devinit 9044 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9045 { 9046 struct lpfc_hba *phba; 9047 struct lpfc_vport *vport = NULL; 9048 struct Scsi_Host *shost = NULL; 9049 int error; 9050 uint32_t cfg_mode, intr_mode; 9051 int mcnt; 9052 int adjusted_fcp_eq_count; 9053 const struct firmware *fw; 9054 uint8_t file_name[16]; 9055 9056 /* Allocate memory for HBA structure */ 9057 phba = lpfc_hba_alloc(pdev); 9058 if (!phba) 9059 return -ENOMEM; 9060 9061 /* Perform generic PCI device enabling operation */ 9062 error = lpfc_enable_pci_dev(phba); 9063 if (error) 9064 goto out_free_phba; 9065 9066 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9067 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9068 if (error) 9069 goto out_disable_pci_dev; 9070 9071 /* Set up SLI-4 specific device PCI memory space */ 9072 error = lpfc_sli4_pci_mem_setup(phba); 9073 if (error) { 9074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9075 "1410 Failed to set up pci memory space.\n"); 9076 goto out_disable_pci_dev; 9077 } 9078 9079 /* Set up phase-1 common device driver resources */ 9080 error = lpfc_setup_driver_resource_phase1(phba); 9081 if (error) { 9082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9083 "1411 Failed to set up driver resource.\n"); 9084 goto out_unset_pci_mem_s4; 9085 } 9086 9087 /* Set up SLI-4 Specific device driver resources */ 9088 error = lpfc_sli4_driver_resource_setup(phba); 9089 if (error) { 9090 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9091 "1412 Failed to set up driver resource.\n"); 9092 goto out_unset_pci_mem_s4; 9093 } 9094 9095 /* Initialize and populate the iocb list per host */ 9096 9097 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9098 "2821 initialize iocb list %d.\n", 9099 phba->cfg_iocb_cnt*1024); 9100 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9101 9102 if (error) { 9103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9104 "1413 Failed to initialize iocb list.\n"); 9105 goto out_unset_driver_resource_s4; 9106 } 9107 9108 INIT_LIST_HEAD(&phba->active_rrq_list); 9109 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9110 9111 /* Set up common device driver resources */ 9112 error = lpfc_setup_driver_resource_phase2(phba); 9113 if (error) { 9114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9115 "1414 Failed to set up driver resource.\n"); 9116 goto out_free_iocb_list; 9117 } 9118 9119 /* Get the default values for Model Name and Description */ 9120 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9121 9122 /* Create SCSI host to the physical port */ 9123 error = lpfc_create_shost(phba); 9124 if (error) { 9125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9126 "1415 Failed to create scsi host.\n"); 9127 goto out_unset_driver_resource; 9128 } 9129 9130 /* Configure sysfs attributes */ 9131 vport = phba->pport; 9132 error = lpfc_alloc_sysfs_attr(vport); 9133 if (error) { 9134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9135 "1416 Failed to allocate sysfs attr\n"); 9136 goto out_destroy_shost; 9137 } 9138 9139 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9140 /* Now, trying to enable interrupt and bring up the device */ 9141 cfg_mode = phba->cfg_use_msi; 9142 while (true) { 9143 /* Put device to a known state before enabling interrupt */ 9144 lpfc_stop_port(phba); 9145 /* Configure and enable interrupt */ 9146 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9147 if (intr_mode == LPFC_INTR_ERROR) { 9148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9149 "0426 Failed to enable interrupt.\n"); 9150 error = -ENODEV; 9151 goto out_free_sysfs_attr; 9152 } 9153 /* Default to single EQ for non-MSI-X */ 9154 if (phba->intr_type != MSIX) 9155 adjusted_fcp_eq_count = 0; 9156 else if (phba->sli4_hba.msix_vec_nr < 9157 phba->cfg_fcp_eq_count + 1) 9158 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9159 else 9160 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9161 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9162 /* Set up SLI-4 HBA */ 9163 if (lpfc_sli4_hba_setup(phba)) { 9164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9165 "1421 Failed to set up hba\n"); 9166 error = -ENODEV; 9167 goto out_disable_intr; 9168 } 9169 9170 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9171 if (intr_mode != 0) 9172 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9173 LPFC_ACT_INTR_CNT); 9174 9175 /* Check active interrupts received only for MSI/MSI-X */ 9176 if (intr_mode == 0 || 9177 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9178 /* Log the current active interrupt mode */ 9179 phba->intr_mode = intr_mode; 9180 lpfc_log_intr_mode(phba, intr_mode); 9181 break; 9182 } 9183 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9184 "0451 Configure interrupt mode (%d) " 9185 "failed active interrupt test.\n", 9186 intr_mode); 9187 /* Unset the previous SLI-4 HBA setup. */ 9188 /* 9189 * TODO: Is this operation compatible with IF TYPE 2 9190 * devices? All port state is deleted and cleared. 9191 */ 9192 lpfc_sli4_unset_hba(phba); 9193 /* Try next level of interrupt mode */ 9194 cfg_mode = --intr_mode; 9195 } 9196 9197 /* Perform post initialization setup */ 9198 lpfc_post_init_setup(phba); 9199 9200 /* check for firmware upgrade or downgrade */ 9201 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9202 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9203 if (!error) { 9204 lpfc_write_firmware(phba, fw); 9205 release_firmware(fw); 9206 } 9207 9208 /* Check if there are static vports to be created. */ 9209 lpfc_create_static_vport(phba); 9210 return 0; 9211 9212 out_disable_intr: 9213 lpfc_sli4_disable_intr(phba); 9214 out_free_sysfs_attr: 9215 lpfc_free_sysfs_attr(vport); 9216 out_destroy_shost: 9217 lpfc_destroy_shost(phba); 9218 out_unset_driver_resource: 9219 lpfc_unset_driver_resource_phase2(phba); 9220 out_free_iocb_list: 9221 lpfc_free_iocb_list(phba); 9222 out_unset_driver_resource_s4: 9223 lpfc_sli4_driver_resource_unset(phba); 9224 out_unset_pci_mem_s4: 9225 lpfc_sli4_pci_mem_unset(phba); 9226 out_disable_pci_dev: 9227 lpfc_disable_pci_dev(phba); 9228 if (shost) 9229 scsi_host_put(shost); 9230 out_free_phba: 9231 lpfc_hba_free(phba); 9232 return error; 9233 } 9234 9235 /** 9236 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9237 * @pdev: pointer to PCI device 9238 * 9239 * This routine is called from the kernel's PCI subsystem to device with 9240 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9241 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9242 * device to be removed from the PCI subsystem properly. 9243 **/ 9244 static void __devexit 9245 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9246 { 9247 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9248 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9249 struct lpfc_vport **vports; 9250 struct lpfc_hba *phba = vport->phba; 9251 int i; 9252 9253 /* Mark the device unloading flag */ 9254 spin_lock_irq(&phba->hbalock); 9255 vport->load_flag |= FC_UNLOADING; 9256 spin_unlock_irq(&phba->hbalock); 9257 9258 /* Free the HBA sysfs attributes */ 9259 lpfc_free_sysfs_attr(vport); 9260 9261 /* Release all the vports against this physical port */ 9262 vports = lpfc_create_vport_work_array(phba); 9263 if (vports != NULL) 9264 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 9265 fc_vport_terminate(vports[i]->fc_vport); 9266 lpfc_destroy_vport_work_array(phba, vports); 9267 9268 /* Remove FC host and then SCSI host with the physical port */ 9269 fc_remove_host(shost); 9270 scsi_remove_host(shost); 9271 9272 /* Perform cleanup on the physical port */ 9273 lpfc_cleanup(vport); 9274 9275 /* 9276 * Bring down the SLI Layer. This step disables all interrupts, 9277 * clears the rings, discards all mailbox commands, and resets 9278 * the HBA FCoE function. 9279 */ 9280 lpfc_debugfs_terminate(vport); 9281 lpfc_sli4_hba_unset(phba); 9282 9283 spin_lock_irq(&phba->hbalock); 9284 list_del_init(&vport->listentry); 9285 spin_unlock_irq(&phba->hbalock); 9286 9287 /* Perform scsi free before driver resource_unset since scsi 9288 * buffers are released to their corresponding pools here. 9289 */ 9290 lpfc_scsi_free(phba); 9291 lpfc_sli4_driver_resource_unset(phba); 9292 9293 /* Unmap adapter Control and Doorbell registers */ 9294 lpfc_sli4_pci_mem_unset(phba); 9295 9296 /* Release PCI resources and disable device's PCI function */ 9297 scsi_host_put(shost); 9298 lpfc_disable_pci_dev(phba); 9299 9300 /* Finally, free the driver's device data structure */ 9301 lpfc_hba_free(phba); 9302 9303 return; 9304 } 9305 9306 /** 9307 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9308 * @pdev: pointer to PCI device 9309 * @msg: power management message 9310 * 9311 * This routine is called from the kernel's PCI subsystem to support system 9312 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9313 * this method, it quiesces the device by stopping the driver's worker 9314 * thread for the device, turning off device's interrupt and DMA, and bring 9315 * the device offline. Note that as the driver implements the minimum PM 9316 * requirements to a power-aware driver's PM support for suspend/resume -- all 9317 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9318 * method call will be treated as SUSPEND and the driver will fully 9319 * reinitialize its device during resume() method call, the driver will set 9320 * device to PCI_D3hot state in PCI config space instead of setting it 9321 * according to the @msg provided by the PM. 9322 * 9323 * Return code 9324 * 0 - driver suspended the device 9325 * Error otherwise 9326 **/ 9327 static int 9328 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9329 { 9330 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9331 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9332 9333 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9334 "2843 PCI device Power Management suspend.\n"); 9335 9336 /* Bring down the device */ 9337 lpfc_offline_prep(phba); 9338 lpfc_offline(phba); 9339 kthread_stop(phba->worker_thread); 9340 9341 /* Disable interrupt from device */ 9342 lpfc_sli4_disable_intr(phba); 9343 lpfc_sli4_queue_destroy(phba); 9344 9345 /* Save device state to PCI config space */ 9346 pci_save_state(pdev); 9347 pci_set_power_state(pdev, PCI_D3hot); 9348 9349 return 0; 9350 } 9351 9352 /** 9353 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9354 * @pdev: pointer to PCI device 9355 * 9356 * This routine is called from the kernel's PCI subsystem to support system 9357 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9358 * this method, it restores the device's PCI config space state and fully 9359 * reinitializes the device and brings it online. Note that as the driver 9360 * implements the minimum PM requirements to a power-aware driver's PM for 9361 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9362 * to the suspend() method call will be treated as SUSPEND and the driver 9363 * will fully reinitialize its device during resume() method call, the device 9364 * will be set to PCI_D0 directly in PCI config space before restoring the 9365 * state. 9366 * 9367 * Return code 9368 * 0 - driver suspended the device 9369 * Error otherwise 9370 **/ 9371 static int 9372 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9373 { 9374 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9375 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9376 uint32_t intr_mode; 9377 int error; 9378 9379 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9380 "0292 PCI device Power Management resume.\n"); 9381 9382 /* Restore device state from PCI config space */ 9383 pci_set_power_state(pdev, PCI_D0); 9384 pci_restore_state(pdev); 9385 9386 /* 9387 * As the new kernel behavior of pci_restore_state() API call clears 9388 * device saved_state flag, need to save the restored state again. 9389 */ 9390 pci_save_state(pdev); 9391 9392 if (pdev->is_busmaster) 9393 pci_set_master(pdev); 9394 9395 /* Startup the kernel thread for this host adapter. */ 9396 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9397 "lpfc_worker_%d", phba->brd_no); 9398 if (IS_ERR(phba->worker_thread)) { 9399 error = PTR_ERR(phba->worker_thread); 9400 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9401 "0293 PM resume failed to start worker " 9402 "thread: error=x%x.\n", error); 9403 return error; 9404 } 9405 9406 /* Configure and enable interrupt */ 9407 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9408 if (intr_mode == LPFC_INTR_ERROR) { 9409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9410 "0294 PM resume Failed to enable interrupt\n"); 9411 return -EIO; 9412 } else 9413 phba->intr_mode = intr_mode; 9414 9415 /* Restart HBA and bring it online */ 9416 lpfc_sli_brdrestart(phba); 9417 lpfc_online(phba); 9418 9419 /* Log the current active interrupt mode */ 9420 lpfc_log_intr_mode(phba, phba->intr_mode); 9421 9422 return 0; 9423 } 9424 9425 /** 9426 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9427 * @phba: pointer to lpfc hba data structure. 9428 * 9429 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9430 * aborts all the outstanding SCSI I/Os to the pci device. 9431 **/ 9432 static void 9433 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9434 { 9435 struct lpfc_sli *psli = &phba->sli; 9436 struct lpfc_sli_ring *pring; 9437 9438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9439 "2828 PCI channel I/O abort preparing for recovery\n"); 9440 /* 9441 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9442 * and let the SCSI mid-layer to retry them to recover. 9443 */ 9444 pring = &psli->ring[psli->fcp_ring]; 9445 lpfc_sli_abort_iocb_ring(phba, pring); 9446 } 9447 9448 /** 9449 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9450 * @phba: pointer to lpfc hba data structure. 9451 * 9452 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9453 * disables the device interrupt and pci device, and aborts the internal FCP 9454 * pending I/Os. 9455 **/ 9456 static void 9457 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9458 { 9459 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9460 "2826 PCI channel disable preparing for reset\n"); 9461 9462 /* Block any management I/Os to the device */ 9463 lpfc_block_mgmt_io(phba); 9464 9465 /* Block all SCSI devices' I/Os on the host */ 9466 lpfc_scsi_dev_block(phba); 9467 9468 /* stop all timers */ 9469 lpfc_stop_hba_timers(phba); 9470 9471 /* Disable interrupt and pci device */ 9472 lpfc_sli4_disable_intr(phba); 9473 lpfc_sli4_queue_destroy(phba); 9474 pci_disable_device(phba->pcidev); 9475 9476 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9477 lpfc_sli_flush_fcp_rings(phba); 9478 } 9479 9480 /** 9481 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9482 * @phba: pointer to lpfc hba data structure. 9483 * 9484 * This routine is called to prepare the SLI4 device for PCI slot permanently 9485 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9486 * pending I/Os. 9487 **/ 9488 static void 9489 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9490 { 9491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9492 "2827 PCI channel permanent disable for failure\n"); 9493 9494 /* Block all SCSI devices' I/Os on the host */ 9495 lpfc_scsi_dev_block(phba); 9496 9497 /* stop all timers */ 9498 lpfc_stop_hba_timers(phba); 9499 9500 /* Clean up all driver's outstanding SCSI I/Os */ 9501 lpfc_sli_flush_fcp_rings(phba); 9502 } 9503 9504 /** 9505 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9506 * @pdev: pointer to PCI device. 9507 * @state: the current PCI connection state. 9508 * 9509 * This routine is called from the PCI subsystem for error handling to device 9510 * with SLI-4 interface spec. This function is called by the PCI subsystem 9511 * after a PCI bus error affecting this device has been detected. When this 9512 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9513 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9514 * for the PCI subsystem to perform proper recovery as desired. 9515 * 9516 * Return codes 9517 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9518 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9519 **/ 9520 static pci_ers_result_t 9521 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9522 { 9523 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9524 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9525 9526 switch (state) { 9527 case pci_channel_io_normal: 9528 /* Non-fatal error, prepare for recovery */ 9529 lpfc_sli4_prep_dev_for_recover(phba); 9530 return PCI_ERS_RESULT_CAN_RECOVER; 9531 case pci_channel_io_frozen: 9532 /* Fatal error, prepare for slot reset */ 9533 lpfc_sli4_prep_dev_for_reset(phba); 9534 return PCI_ERS_RESULT_NEED_RESET; 9535 case pci_channel_io_perm_failure: 9536 /* Permanent failure, prepare for device down */ 9537 lpfc_sli4_prep_dev_for_perm_failure(phba); 9538 return PCI_ERS_RESULT_DISCONNECT; 9539 default: 9540 /* Unknown state, prepare and request slot reset */ 9541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9542 "2825 Unknown PCI error state: x%x\n", state); 9543 lpfc_sli4_prep_dev_for_reset(phba); 9544 return PCI_ERS_RESULT_NEED_RESET; 9545 } 9546 } 9547 9548 /** 9549 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9550 * @pdev: pointer to PCI device. 9551 * 9552 * This routine is called from the PCI subsystem for error handling to device 9553 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9554 * restart the PCI card from scratch, as if from a cold-boot. During the 9555 * PCI subsystem error recovery, after the driver returns 9556 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9557 * recovery and then call this routine before calling the .resume method to 9558 * recover the device. This function will initialize the HBA device, enable 9559 * the interrupt, but it will just put the HBA to offline state without 9560 * passing any I/O traffic. 9561 * 9562 * Return codes 9563 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9564 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9565 */ 9566 static pci_ers_result_t 9567 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9568 { 9569 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9570 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9571 struct lpfc_sli *psli = &phba->sli; 9572 uint32_t intr_mode; 9573 9574 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9575 if (pci_enable_device_mem(pdev)) { 9576 printk(KERN_ERR "lpfc: Cannot re-enable " 9577 "PCI device after reset.\n"); 9578 return PCI_ERS_RESULT_DISCONNECT; 9579 } 9580 9581 pci_restore_state(pdev); 9582 9583 /* 9584 * As the new kernel behavior of pci_restore_state() API call clears 9585 * device saved_state flag, need to save the restored state again. 9586 */ 9587 pci_save_state(pdev); 9588 9589 if (pdev->is_busmaster) 9590 pci_set_master(pdev); 9591 9592 spin_lock_irq(&phba->hbalock); 9593 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9594 spin_unlock_irq(&phba->hbalock); 9595 9596 /* Configure and enable interrupt */ 9597 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9598 if (intr_mode == LPFC_INTR_ERROR) { 9599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9600 "2824 Cannot re-enable interrupt after " 9601 "slot reset.\n"); 9602 return PCI_ERS_RESULT_DISCONNECT; 9603 } else 9604 phba->intr_mode = intr_mode; 9605 9606 /* Log the current active interrupt mode */ 9607 lpfc_log_intr_mode(phba, phba->intr_mode); 9608 9609 return PCI_ERS_RESULT_RECOVERED; 9610 } 9611 9612 /** 9613 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9614 * @pdev: pointer to PCI device 9615 * 9616 * This routine is called from the PCI subsystem for error handling to device 9617 * with SLI-4 interface spec. It is called when kernel error recovery tells 9618 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9619 * error recovery. After this call, traffic can start to flow from this device 9620 * again. 9621 **/ 9622 static void 9623 lpfc_io_resume_s4(struct pci_dev *pdev) 9624 { 9625 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9626 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9627 9628 /* 9629 * In case of slot reset, as function reset is performed through 9630 * mailbox command which needs DMA to be enabled, this operation 9631 * has to be moved to the io resume phase. Taking device offline 9632 * will perform the necessary cleanup. 9633 */ 9634 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9635 /* Perform device reset */ 9636 lpfc_offline_prep(phba); 9637 lpfc_offline(phba); 9638 lpfc_sli_brdrestart(phba); 9639 /* Bring the device back online */ 9640 lpfc_online(phba); 9641 } 9642 9643 /* Clean up Advanced Error Reporting (AER) if needed */ 9644 if (phba->hba_flag & HBA_AER_ENABLED) 9645 pci_cleanup_aer_uncorrect_error_status(pdev); 9646 } 9647 9648 /** 9649 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9650 * @pdev: pointer to PCI device 9651 * @pid: pointer to PCI device identifier 9652 * 9653 * This routine is to be registered to the kernel's PCI subsystem. When an 9654 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9655 * at PCI device-specific information of the device and driver to see if the 9656 * driver state that it can support this kind of device. If the match is 9657 * successful, the driver core invokes this routine. This routine dispatches 9658 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9659 * do all the initialization that it needs to do to handle the HBA device 9660 * properly. 9661 * 9662 * Return code 9663 * 0 - driver can claim the device 9664 * negative value - driver can not claim the device 9665 **/ 9666 static int __devinit 9667 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9668 { 9669 int rc; 9670 struct lpfc_sli_intf intf; 9671 9672 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9673 return -ENODEV; 9674 9675 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9676 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9677 rc = lpfc_pci_probe_one_s4(pdev, pid); 9678 else 9679 rc = lpfc_pci_probe_one_s3(pdev, pid); 9680 9681 return rc; 9682 } 9683 9684 /** 9685 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9686 * @pdev: pointer to PCI device 9687 * 9688 * This routine is to be registered to the kernel's PCI subsystem. When an 9689 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9690 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9691 * remove routine, which will perform all the necessary cleanup for the 9692 * device to be removed from the PCI subsystem properly. 9693 **/ 9694 static void __devexit 9695 lpfc_pci_remove_one(struct pci_dev *pdev) 9696 { 9697 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9698 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9699 9700 switch (phba->pci_dev_grp) { 9701 case LPFC_PCI_DEV_LP: 9702 lpfc_pci_remove_one_s3(pdev); 9703 break; 9704 case LPFC_PCI_DEV_OC: 9705 lpfc_pci_remove_one_s4(pdev); 9706 break; 9707 default: 9708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9709 "1424 Invalid PCI device group: 0x%x\n", 9710 phba->pci_dev_grp); 9711 break; 9712 } 9713 return; 9714 } 9715 9716 /** 9717 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9718 * @pdev: pointer to PCI device 9719 * @msg: power management message 9720 * 9721 * This routine is to be registered to the kernel's PCI subsystem to support 9722 * system Power Management (PM). When PM invokes this method, it dispatches 9723 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9724 * suspend the device. 9725 * 9726 * Return code 9727 * 0 - driver suspended the device 9728 * Error otherwise 9729 **/ 9730 static int 9731 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9732 { 9733 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9734 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9735 int rc = -ENODEV; 9736 9737 switch (phba->pci_dev_grp) { 9738 case LPFC_PCI_DEV_LP: 9739 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9740 break; 9741 case LPFC_PCI_DEV_OC: 9742 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9743 break; 9744 default: 9745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9746 "1425 Invalid PCI device group: 0x%x\n", 9747 phba->pci_dev_grp); 9748 break; 9749 } 9750 return rc; 9751 } 9752 9753 /** 9754 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9755 * @pdev: pointer to PCI device 9756 * 9757 * This routine is to be registered to the kernel's PCI subsystem to support 9758 * system Power Management (PM). When PM invokes this method, it dispatches 9759 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9760 * resume the device. 9761 * 9762 * Return code 9763 * 0 - driver suspended the device 9764 * Error otherwise 9765 **/ 9766 static int 9767 lpfc_pci_resume_one(struct pci_dev *pdev) 9768 { 9769 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9770 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9771 int rc = -ENODEV; 9772 9773 switch (phba->pci_dev_grp) { 9774 case LPFC_PCI_DEV_LP: 9775 rc = lpfc_pci_resume_one_s3(pdev); 9776 break; 9777 case LPFC_PCI_DEV_OC: 9778 rc = lpfc_pci_resume_one_s4(pdev); 9779 break; 9780 default: 9781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9782 "1426 Invalid PCI device group: 0x%x\n", 9783 phba->pci_dev_grp); 9784 break; 9785 } 9786 return rc; 9787 } 9788 9789 /** 9790 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9791 * @pdev: pointer to PCI device. 9792 * @state: the current PCI connection state. 9793 * 9794 * This routine is registered to the PCI subsystem for error handling. This 9795 * function is called by the PCI subsystem after a PCI bus error affecting 9796 * this device has been detected. When this routine is invoked, it dispatches 9797 * the action to the proper SLI-3 or SLI-4 device error detected handling 9798 * routine, which will perform the proper error detected operation. 9799 * 9800 * Return codes 9801 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9802 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9803 **/ 9804 static pci_ers_result_t 9805 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 9806 { 9807 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9808 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9809 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9810 9811 switch (phba->pci_dev_grp) { 9812 case LPFC_PCI_DEV_LP: 9813 rc = lpfc_io_error_detected_s3(pdev, state); 9814 break; 9815 case LPFC_PCI_DEV_OC: 9816 rc = lpfc_io_error_detected_s4(pdev, state); 9817 break; 9818 default: 9819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9820 "1427 Invalid PCI device group: 0x%x\n", 9821 phba->pci_dev_grp); 9822 break; 9823 } 9824 return rc; 9825 } 9826 9827 /** 9828 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 9829 * @pdev: pointer to PCI device. 9830 * 9831 * This routine is registered to the PCI subsystem for error handling. This 9832 * function is called after PCI bus has been reset to restart the PCI card 9833 * from scratch, as if from a cold-boot. When this routine is invoked, it 9834 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 9835 * routine, which will perform the proper device reset. 9836 * 9837 * Return codes 9838 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9839 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9840 **/ 9841 static pci_ers_result_t 9842 lpfc_io_slot_reset(struct pci_dev *pdev) 9843 { 9844 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9846 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 9847 9848 switch (phba->pci_dev_grp) { 9849 case LPFC_PCI_DEV_LP: 9850 rc = lpfc_io_slot_reset_s3(pdev); 9851 break; 9852 case LPFC_PCI_DEV_OC: 9853 rc = lpfc_io_slot_reset_s4(pdev); 9854 break; 9855 default: 9856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9857 "1428 Invalid PCI device group: 0x%x\n", 9858 phba->pci_dev_grp); 9859 break; 9860 } 9861 return rc; 9862 } 9863 9864 /** 9865 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 9866 * @pdev: pointer to PCI device 9867 * 9868 * This routine is registered to the PCI subsystem for error handling. It 9869 * is called when kernel error recovery tells the lpfc driver that it is 9870 * OK to resume normal PCI operation after PCI bus error recovery. When 9871 * this routine is invoked, it dispatches the action to the proper SLI-3 9872 * or SLI-4 device io_resume routine, which will resume the device operation. 9873 **/ 9874 static void 9875 lpfc_io_resume(struct pci_dev *pdev) 9876 { 9877 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9878 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9879 9880 switch (phba->pci_dev_grp) { 9881 case LPFC_PCI_DEV_LP: 9882 lpfc_io_resume_s3(pdev); 9883 break; 9884 case LPFC_PCI_DEV_OC: 9885 lpfc_io_resume_s4(pdev); 9886 break; 9887 default: 9888 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9889 "1429 Invalid PCI device group: 0x%x\n", 9890 phba->pci_dev_grp); 9891 break; 9892 } 9893 return; 9894 } 9895 9896 static struct pci_device_id lpfc_id_table[] = { 9897 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 9898 PCI_ANY_ID, PCI_ANY_ID, }, 9899 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 9900 PCI_ANY_ID, PCI_ANY_ID, }, 9901 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 9902 PCI_ANY_ID, PCI_ANY_ID, }, 9903 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 9904 PCI_ANY_ID, PCI_ANY_ID, }, 9905 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 9906 PCI_ANY_ID, PCI_ANY_ID, }, 9907 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 9908 PCI_ANY_ID, PCI_ANY_ID, }, 9909 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 9910 PCI_ANY_ID, PCI_ANY_ID, }, 9911 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 9912 PCI_ANY_ID, PCI_ANY_ID, }, 9913 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 9914 PCI_ANY_ID, PCI_ANY_ID, }, 9915 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 9916 PCI_ANY_ID, PCI_ANY_ID, }, 9917 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 9918 PCI_ANY_ID, PCI_ANY_ID, }, 9919 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 9920 PCI_ANY_ID, PCI_ANY_ID, }, 9921 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 9922 PCI_ANY_ID, PCI_ANY_ID, }, 9923 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 9924 PCI_ANY_ID, PCI_ANY_ID, }, 9925 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 9926 PCI_ANY_ID, PCI_ANY_ID, }, 9927 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 9928 PCI_ANY_ID, PCI_ANY_ID, }, 9929 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 9930 PCI_ANY_ID, PCI_ANY_ID, }, 9931 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 9932 PCI_ANY_ID, PCI_ANY_ID, }, 9933 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 9934 PCI_ANY_ID, PCI_ANY_ID, }, 9935 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 9936 PCI_ANY_ID, PCI_ANY_ID, }, 9937 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 9938 PCI_ANY_ID, PCI_ANY_ID, }, 9939 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 9940 PCI_ANY_ID, PCI_ANY_ID, }, 9941 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 9942 PCI_ANY_ID, PCI_ANY_ID, }, 9943 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 9944 PCI_ANY_ID, PCI_ANY_ID, }, 9945 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 9946 PCI_ANY_ID, PCI_ANY_ID, }, 9947 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 9948 PCI_ANY_ID, PCI_ANY_ID, }, 9949 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 9950 PCI_ANY_ID, PCI_ANY_ID, }, 9951 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 9952 PCI_ANY_ID, PCI_ANY_ID, }, 9953 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 9954 PCI_ANY_ID, PCI_ANY_ID, }, 9955 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 9956 PCI_ANY_ID, PCI_ANY_ID, }, 9957 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 9958 PCI_ANY_ID, PCI_ANY_ID, }, 9959 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 9960 PCI_ANY_ID, PCI_ANY_ID, }, 9961 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 9962 PCI_ANY_ID, PCI_ANY_ID, }, 9963 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 9964 PCI_ANY_ID, PCI_ANY_ID, }, 9965 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 9966 PCI_ANY_ID, PCI_ANY_ID, }, 9967 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 9968 PCI_ANY_ID, PCI_ANY_ID, }, 9969 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 9970 PCI_ANY_ID, PCI_ANY_ID, }, 9971 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 9972 PCI_ANY_ID, PCI_ANY_ID, }, 9973 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 9974 PCI_ANY_ID, PCI_ANY_ID, }, 9975 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 9976 PCI_ANY_ID, PCI_ANY_ID, }, 9977 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 9978 PCI_ANY_ID, PCI_ANY_ID, }, 9979 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 9980 PCI_ANY_ID, PCI_ANY_ID, }, 9981 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 9982 PCI_ANY_ID, PCI_ANY_ID, }, 9983 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 9984 PCI_ANY_ID, PCI_ANY_ID, }, 9985 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 9986 PCI_ANY_ID, PCI_ANY_ID, }, 9987 { 0 } 9988 }; 9989 9990 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 9991 9992 static struct pci_error_handlers lpfc_err_handler = { 9993 .error_detected = lpfc_io_error_detected, 9994 .slot_reset = lpfc_io_slot_reset, 9995 .resume = lpfc_io_resume, 9996 }; 9997 9998 static struct pci_driver lpfc_driver = { 9999 .name = LPFC_DRIVER_NAME, 10000 .id_table = lpfc_id_table, 10001 .probe = lpfc_pci_probe_one, 10002 .remove = __devexit_p(lpfc_pci_remove_one), 10003 .suspend = lpfc_pci_suspend_one, 10004 .resume = lpfc_pci_resume_one, 10005 .err_handler = &lpfc_err_handler, 10006 }; 10007 10008 /** 10009 * lpfc_init - lpfc module initialization routine 10010 * 10011 * This routine is to be invoked when the lpfc module is loaded into the 10012 * kernel. The special kernel macro module_init() is used to indicate the 10013 * role of this routine to the kernel as lpfc module entry point. 10014 * 10015 * Return codes 10016 * 0 - successful 10017 * -ENOMEM - FC attach transport failed 10018 * all others - failed 10019 */ 10020 static int __init 10021 lpfc_init(void) 10022 { 10023 int error = 0; 10024 10025 printk(LPFC_MODULE_DESC "\n"); 10026 printk(LPFC_COPYRIGHT "\n"); 10027 10028 if (lpfc_enable_npiv) { 10029 lpfc_transport_functions.vport_create = lpfc_vport_create; 10030 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10031 } 10032 lpfc_transport_template = 10033 fc_attach_transport(&lpfc_transport_functions); 10034 if (lpfc_transport_template == NULL) 10035 return -ENOMEM; 10036 if (lpfc_enable_npiv) { 10037 lpfc_vport_transport_template = 10038 fc_attach_transport(&lpfc_vport_transport_functions); 10039 if (lpfc_vport_transport_template == NULL) { 10040 fc_release_transport(lpfc_transport_template); 10041 return -ENOMEM; 10042 } 10043 } 10044 error = pci_register_driver(&lpfc_driver); 10045 if (error) { 10046 fc_release_transport(lpfc_transport_template); 10047 if (lpfc_enable_npiv) 10048 fc_release_transport(lpfc_vport_transport_template); 10049 } 10050 10051 return error; 10052 } 10053 10054 /** 10055 * lpfc_exit - lpfc module removal routine 10056 * 10057 * This routine is invoked when the lpfc module is removed from the kernel. 10058 * The special kernel macro module_exit() is used to indicate the role of 10059 * this routine to the kernel as lpfc module exit point. 10060 */ 10061 static void __exit 10062 lpfc_exit(void) 10063 { 10064 pci_unregister_driver(&lpfc_driver); 10065 fc_release_transport(lpfc_transport_template); 10066 if (lpfc_enable_npiv) 10067 fc_release_transport(lpfc_vport_transport_template); 10068 if (_dump_buf_data) { 10069 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10070 "_dump_buf_data at 0x%p\n", 10071 (1L << _dump_buf_data_order), _dump_buf_data); 10072 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10073 } 10074 10075 if (_dump_buf_dif) { 10076 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10077 "_dump_buf_dif at 0x%p\n", 10078 (1L << _dump_buf_dif_order), _dump_buf_dif); 10079 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10080 } 10081 } 10082 10083 module_init(lpfc_init); 10084 module_exit(lpfc_exit); 10085 MODULE_LICENSE("GPL"); 10086 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10087 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10088 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10089