1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2004-2012 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/module.h> 28 #include <linux/kthread.h> 29 #include <linux/pci.h> 30 #include <linux/spinlock.h> 31 #include <linux/ctype.h> 32 #include <linux/aer.h> 33 #include <linux/slab.h> 34 #include <linux/firmware.h> 35 #include <linux/miscdevice.h> 36 37 #include <scsi/scsi.h> 38 #include <scsi/scsi_device.h> 39 #include <scsi/scsi_host.h> 40 #include <scsi/scsi_transport_fc.h> 41 42 #include "lpfc_hw4.h" 43 #include "lpfc_hw.h" 44 #include "lpfc_sli.h" 45 #include "lpfc_sli4.h" 46 #include "lpfc_nl.h" 47 #include "lpfc_disc.h" 48 #include "lpfc_scsi.h" 49 #include "lpfc.h" 50 #include "lpfc_logmsg.h" 51 #include "lpfc_crtn.h" 52 #include "lpfc_vport.h" 53 #include "lpfc_version.h" 54 55 char *_dump_buf_data; 56 unsigned long _dump_buf_data_order; 57 char *_dump_buf_dif; 58 unsigned long _dump_buf_dif_order; 59 spinlock_t _dump_buf_lock; 60 61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 62 static int lpfc_post_rcv_buf(struct lpfc_hba *); 63 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 65 static int lpfc_setup_endian_order(struct lpfc_hba *); 66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 67 static void lpfc_free_sgl_list(struct lpfc_hba *); 68 static int lpfc_init_sgl_list(struct lpfc_hba *); 69 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 70 static void lpfc_free_active_sgl(struct lpfc_hba *); 71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 76 77 static struct scsi_transport_template *lpfc_transport_template = NULL; 78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 79 static DEFINE_IDR(lpfc_hba_index); 80 81 /** 82 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 83 * @phba: pointer to lpfc hba data structure. 84 * 85 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 86 * mailbox command. It retrieves the revision information from the HBA and 87 * collects the Vital Product Data (VPD) about the HBA for preparing the 88 * configuration of the HBA. 89 * 90 * Return codes: 91 * 0 - success. 92 * -ERESTART - requests the SLI layer to reset the HBA and try again. 93 * Any other value - indicates an error. 94 **/ 95 int 96 lpfc_config_port_prep(struct lpfc_hba *phba) 97 { 98 lpfc_vpd_t *vp = &phba->vpd; 99 int i = 0, rc; 100 LPFC_MBOXQ_t *pmb; 101 MAILBOX_t *mb; 102 char *lpfc_vpd_data = NULL; 103 uint16_t offset = 0; 104 static char licensed[56] = 105 "key unlock for use with gnu public licensed code only\0"; 106 static int init_key = 1; 107 108 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 109 if (!pmb) { 110 phba->link_state = LPFC_HBA_ERROR; 111 return -ENOMEM; 112 } 113 114 mb = &pmb->u.mb; 115 phba->link_state = LPFC_INIT_MBX_CMDS; 116 117 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 118 if (init_key) { 119 uint32_t *ptext = (uint32_t *) licensed; 120 121 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 122 *ptext = cpu_to_be32(*ptext); 123 init_key = 0; 124 } 125 126 lpfc_read_nv(phba, pmb); 127 memset((char*)mb->un.varRDnvp.rsvd3, 0, 128 sizeof (mb->un.varRDnvp.rsvd3)); 129 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 130 sizeof (licensed)); 131 132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 133 134 if (rc != MBX_SUCCESS) { 135 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 136 "0324 Config Port initialization " 137 "error, mbxCmd x%x READ_NVPARM, " 138 "mbxStatus x%x\n", 139 mb->mbxCommand, mb->mbxStatus); 140 mempool_free(pmb, phba->mbox_mem_pool); 141 return -ERESTART; 142 } 143 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 144 sizeof(phba->wwnn)); 145 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 146 sizeof(phba->wwpn)); 147 } 148 149 phba->sli3_options = 0x0; 150 151 /* Setup and issue mailbox READ REV command */ 152 lpfc_read_rev(phba, pmb); 153 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 156 "0439 Adapter failed to init, mbxCmd x%x " 157 "READ_REV, mbxStatus x%x\n", 158 mb->mbxCommand, mb->mbxStatus); 159 mempool_free( pmb, phba->mbox_mem_pool); 160 return -ERESTART; 161 } 162 163 164 /* 165 * The value of rr must be 1 since the driver set the cv field to 1. 166 * This setting requires the FW to set all revision fields. 167 */ 168 if (mb->un.varRdRev.rr == 0) { 169 vp->rev.rBit = 0; 170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 171 "0440 Adapter failed to init, READ_REV has " 172 "missing revision information.\n"); 173 mempool_free(pmb, phba->mbox_mem_pool); 174 return -ERESTART; 175 } 176 177 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 178 mempool_free(pmb, phba->mbox_mem_pool); 179 return -EINVAL; 180 } 181 182 /* Save information as VPD data */ 183 vp->rev.rBit = 1; 184 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 185 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 186 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 187 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 188 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 189 vp->rev.biuRev = mb->un.varRdRev.biuRev; 190 vp->rev.smRev = mb->un.varRdRev.smRev; 191 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 192 vp->rev.endecRev = mb->un.varRdRev.endecRev; 193 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 194 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 195 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 196 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 197 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 198 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 199 200 /* If the sli feature level is less then 9, we must 201 * tear down all RPIs and VPIs on link down if NPIV 202 * is enabled. 203 */ 204 if (vp->rev.feaLevelHigh < 9) 205 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 206 207 if (lpfc_is_LC_HBA(phba->pcidev->device)) 208 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 209 sizeof (phba->RandomData)); 210 211 /* Get adapter VPD information */ 212 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 213 if (!lpfc_vpd_data) 214 goto out_free_mbox; 215 do { 216 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 217 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 218 219 if (rc != MBX_SUCCESS) { 220 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 221 "0441 VPD not present on adapter, " 222 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 223 mb->mbxCommand, mb->mbxStatus); 224 mb->un.varDmp.word_cnt = 0; 225 } 226 /* dump mem may return a zero when finished or we got a 227 * mailbox error, either way we are done. 228 */ 229 if (mb->un.varDmp.word_cnt == 0) 230 break; 231 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 232 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 233 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 234 lpfc_vpd_data + offset, 235 mb->un.varDmp.word_cnt); 236 offset += mb->un.varDmp.word_cnt; 237 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 238 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 239 240 kfree(lpfc_vpd_data); 241 out_free_mbox: 242 mempool_free(pmb, phba->mbox_mem_pool); 243 return 0; 244 } 245 246 /** 247 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 248 * @phba: pointer to lpfc hba data structure. 249 * @pmboxq: pointer to the driver internal queue element for mailbox command. 250 * 251 * This is the completion handler for driver's configuring asynchronous event 252 * mailbox command to the device. If the mailbox command returns successfully, 253 * it will set internal async event support flag to 1; otherwise, it will 254 * set internal async event support flag to 0. 255 **/ 256 static void 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 258 { 259 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 260 phba->temp_sensor_support = 1; 261 else 262 phba->temp_sensor_support = 0; 263 mempool_free(pmboxq, phba->mbox_mem_pool); 264 return; 265 } 266 267 /** 268 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 269 * @phba: pointer to lpfc hba data structure. 270 * @pmboxq: pointer to the driver internal queue element for mailbox command. 271 * 272 * This is the completion handler for dump mailbox command for getting 273 * wake up parameters. When this command complete, the response contain 274 * Option rom version of the HBA. This function translate the version number 275 * into a human readable string and store it in OptionROMVersion. 276 **/ 277 static void 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 279 { 280 struct prog_id *prg; 281 uint32_t prog_id_word; 282 char dist = ' '; 283 /* character array used for decoding dist type. */ 284 char dist_char[] = "nabx"; 285 286 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 287 mempool_free(pmboxq, phba->mbox_mem_pool); 288 return; 289 } 290 291 prg = (struct prog_id *) &prog_id_word; 292 293 /* word 7 contain option rom version */ 294 prog_id_word = pmboxq->u.mb.un.varWords[7]; 295 296 /* Decode the Option rom version word to a readable string */ 297 if (prg->dist < 4) 298 dist = dist_char[prg->dist]; 299 300 if ((prg->dist == 3) && (prg->num == 0)) 301 sprintf(phba->OptionROMVersion, "%d.%d%d", 302 prg->ver, prg->rev, prg->lev); 303 else 304 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 305 prg->ver, prg->rev, prg->lev, 306 dist, prg->num); 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309 } 310 311 /** 312 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 313 * cfg_soft_wwnn, cfg_soft_wwpn 314 * @vport: pointer to lpfc vport data structure. 315 * 316 * 317 * Return codes 318 * None. 319 **/ 320 void 321 lpfc_update_vport_wwn(struct lpfc_vport *vport) 322 { 323 /* If the soft name exists then update it using the service params */ 324 if (vport->phba->cfg_soft_wwnn) 325 u64_to_wwn(vport->phba->cfg_soft_wwnn, 326 vport->fc_sparam.nodeName.u.wwn); 327 if (vport->phba->cfg_soft_wwpn) 328 u64_to_wwn(vport->phba->cfg_soft_wwpn, 329 vport->fc_sparam.portName.u.wwn); 330 331 /* 332 * If the name is empty or there exists a soft name 333 * then copy the service params name, otherwise use the fc name 334 */ 335 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 336 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 337 sizeof(struct lpfc_name)); 338 else 339 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 340 sizeof(struct lpfc_name)); 341 342 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 343 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 344 sizeof(struct lpfc_name)); 345 else 346 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 347 sizeof(struct lpfc_name)); 348 } 349 350 /** 351 * lpfc_config_port_post - Perform lpfc initialization after config port 352 * @phba: pointer to lpfc hba data structure. 353 * 354 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 355 * command call. It performs all internal resource and state setups on the 356 * port: post IOCB buffers, enable appropriate host interrupt attentions, 357 * ELS ring timers, etc. 358 * 359 * Return codes 360 * 0 - success. 361 * Any other value - error. 362 **/ 363 int 364 lpfc_config_port_post(struct lpfc_hba *phba) 365 { 366 struct lpfc_vport *vport = phba->pport; 367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 368 LPFC_MBOXQ_t *pmb; 369 MAILBOX_t *mb; 370 struct lpfc_dmabuf *mp; 371 struct lpfc_sli *psli = &phba->sli; 372 uint32_t status, timeout; 373 int i, j; 374 int rc; 375 376 spin_lock_irq(&phba->hbalock); 377 /* 378 * If the Config port completed correctly the HBA is not 379 * over heated any more. 380 */ 381 if (phba->over_temp_state == HBA_OVER_TEMP) 382 phba->over_temp_state = HBA_NORMAL_TEMP; 383 spin_unlock_irq(&phba->hbalock); 384 385 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 386 if (!pmb) { 387 phba->link_state = LPFC_HBA_ERROR; 388 return -ENOMEM; 389 } 390 mb = &pmb->u.mb; 391 392 /* Get login parameters for NID. */ 393 rc = lpfc_read_sparam(phba, pmb, 0); 394 if (rc) { 395 mempool_free(pmb, phba->mbox_mem_pool); 396 return -ENOMEM; 397 } 398 399 pmb->vport = vport; 400 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 402 "0448 Adapter failed init, mbxCmd x%x " 403 "READ_SPARM mbxStatus x%x\n", 404 mb->mbxCommand, mb->mbxStatus); 405 phba->link_state = LPFC_HBA_ERROR; 406 mp = (struct lpfc_dmabuf *) pmb->context1; 407 mempool_free(pmb, phba->mbox_mem_pool); 408 lpfc_mbuf_free(phba, mp->virt, mp->phys); 409 kfree(mp); 410 return -EIO; 411 } 412 413 mp = (struct lpfc_dmabuf *) pmb->context1; 414 415 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 416 lpfc_mbuf_free(phba, mp->virt, mp->phys); 417 kfree(mp); 418 pmb->context1 = NULL; 419 lpfc_update_vport_wwn(vport); 420 421 /* Update the fc_host data structures with new wwn. */ 422 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 423 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 424 fc_host_max_npiv_vports(shost) = phba->max_vpi; 425 426 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 427 /* This should be consolidated into parse_vpd ? - mr */ 428 if (phba->SerialNumber[0] == 0) { 429 uint8_t *outptr; 430 431 outptr = &vport->fc_nodename.u.s.IEEE[0]; 432 for (i = 0; i < 12; i++) { 433 status = *outptr++; 434 j = ((status & 0xf0) >> 4); 435 if (j <= 9) 436 phba->SerialNumber[i] = 437 (char)((uint8_t) 0x30 + (uint8_t) j); 438 else 439 phba->SerialNumber[i] = 440 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 441 i++; 442 j = (status & 0xf); 443 if (j <= 9) 444 phba->SerialNumber[i] = 445 (char)((uint8_t) 0x30 + (uint8_t) j); 446 else 447 phba->SerialNumber[i] = 448 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 449 } 450 } 451 452 lpfc_read_config(phba, pmb); 453 pmb->vport = vport; 454 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 455 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 456 "0453 Adapter failed to init, mbxCmd x%x " 457 "READ_CONFIG, mbxStatus x%x\n", 458 mb->mbxCommand, mb->mbxStatus); 459 phba->link_state = LPFC_HBA_ERROR; 460 mempool_free( pmb, phba->mbox_mem_pool); 461 return -EIO; 462 } 463 464 /* Check if the port is disabled */ 465 lpfc_sli_read_link_ste(phba); 466 467 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 468 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 469 phba->cfg_hba_queue_depth = 470 (mb->un.varRdConfig.max_xri + 1) - 471 lpfc_sli4_get_els_iocb_cnt(phba); 472 473 phba->lmt = mb->un.varRdConfig.lmt; 474 475 /* Get the default values for Model Name and Description */ 476 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 477 478 phba->link_state = LPFC_LINK_DOWN; 479 480 /* Only process IOCBs on ELS ring till hba_state is READY */ 481 if (psli->ring[psli->extra_ring].cmdringaddr) 482 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 483 if (psli->ring[psli->fcp_ring].cmdringaddr) 484 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->next_ring].cmdringaddr) 486 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 488 /* Post receive buffers for desired rings */ 489 if (phba->sli_rev != 3) 490 lpfc_post_rcv_buf(phba); 491 492 /* 493 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 494 */ 495 if (phba->intr_type == MSIX) { 496 rc = lpfc_config_msi(phba, pmb); 497 if (rc) { 498 mempool_free(pmb, phba->mbox_mem_pool); 499 return -EIO; 500 } 501 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 502 if (rc != MBX_SUCCESS) { 503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 504 "0352 Config MSI mailbox command " 505 "failed, mbxCmd x%x, mbxStatus x%x\n", 506 pmb->u.mb.mbxCommand, 507 pmb->u.mb.mbxStatus); 508 mempool_free(pmb, phba->mbox_mem_pool); 509 return -EIO; 510 } 511 } 512 513 spin_lock_irq(&phba->hbalock); 514 /* Initialize ERATT handling flag */ 515 phba->hba_flag &= ~HBA_ERATT_HANDLED; 516 517 /* Enable appropriate host interrupts */ 518 if (lpfc_readl(phba->HCregaddr, &status)) { 519 spin_unlock_irq(&phba->hbalock); 520 return -EIO; 521 } 522 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 523 if (psli->num_rings > 0) 524 status |= HC_R0INT_ENA; 525 if (psli->num_rings > 1) 526 status |= HC_R1INT_ENA; 527 if (psli->num_rings > 2) 528 status |= HC_R2INT_ENA; 529 if (psli->num_rings > 3) 530 status |= HC_R3INT_ENA; 531 532 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 533 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 534 status &= ~(HC_R0INT_ENA); 535 536 writel(status, phba->HCregaddr); 537 readl(phba->HCregaddr); /* flush */ 538 spin_unlock_irq(&phba->hbalock); 539 540 /* Set up ring-0 (ELS) timer */ 541 timeout = phba->fc_ratov * 2; 542 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 543 /* Set up heart beat (HB) timer */ 544 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 545 phba->hb_outstanding = 0; 546 phba->last_completion_time = jiffies; 547 /* Set up error attention (ERATT) polling timer */ 548 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 549 550 if (phba->hba_flag & LINK_DISABLED) { 551 lpfc_printf_log(phba, 552 KERN_ERR, LOG_INIT, 553 "2598 Adapter Link is disabled.\n"); 554 lpfc_down_link(phba, pmb); 555 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 556 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 557 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 558 lpfc_printf_log(phba, 559 KERN_ERR, LOG_INIT, 560 "2599 Adapter failed to issue DOWN_LINK" 561 " mbox command rc 0x%x\n", rc); 562 563 mempool_free(pmb, phba->mbox_mem_pool); 564 return -EIO; 565 } 566 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 567 mempool_free(pmb, phba->mbox_mem_pool); 568 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 569 if (rc) 570 return rc; 571 } 572 /* MBOX buffer will be freed in mbox compl */ 573 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 574 if (!pmb) { 575 phba->link_state = LPFC_HBA_ERROR; 576 return -ENOMEM; 577 } 578 579 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 580 pmb->mbox_cmpl = lpfc_config_async_cmpl; 581 pmb->vport = phba->pport; 582 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 583 584 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 585 lpfc_printf_log(phba, 586 KERN_ERR, 587 LOG_INIT, 588 "0456 Adapter failed to issue " 589 "ASYNCEVT_ENABLE mbox status x%x\n", 590 rc); 591 mempool_free(pmb, phba->mbox_mem_pool); 592 } 593 594 /* Get Option rom version */ 595 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 596 if (!pmb) { 597 phba->link_state = LPFC_HBA_ERROR; 598 return -ENOMEM; 599 } 600 601 lpfc_dump_wakeup_param(phba, pmb); 602 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 603 pmb->vport = phba->pport; 604 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 605 606 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 607 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 608 "to get Option ROM version status x%x\n", rc); 609 mempool_free(pmb, phba->mbox_mem_pool); 610 } 611 612 return 0; 613 } 614 615 /** 616 * lpfc_hba_init_link - Initialize the FC link 617 * @phba: pointer to lpfc hba data structure. 618 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 619 * 620 * This routine will issue the INIT_LINK mailbox command call. 621 * It is available to other drivers through the lpfc_hba data 622 * structure for use as a delayed link up mechanism with the 623 * module parameter lpfc_suppress_link_up. 624 * 625 * Return code 626 * 0 - success 627 * Any other value - error 628 **/ 629 int 630 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 631 { 632 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 633 } 634 635 /** 636 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 637 * @phba: pointer to lpfc hba data structure. 638 * @fc_topology: desired fc topology. 639 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 640 * 641 * This routine will issue the INIT_LINK mailbox command call. 642 * It is available to other drivers through the lpfc_hba data 643 * structure for use as a delayed link up mechanism with the 644 * module parameter lpfc_suppress_link_up. 645 * 646 * Return code 647 * 0 - success 648 * Any other value - error 649 **/ 650 int 651 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 652 uint32_t flag) 653 { 654 struct lpfc_vport *vport = phba->pport; 655 LPFC_MBOXQ_t *pmb; 656 MAILBOX_t *mb; 657 int rc; 658 659 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 660 if (!pmb) { 661 phba->link_state = LPFC_HBA_ERROR; 662 return -ENOMEM; 663 } 664 mb = &pmb->u.mb; 665 pmb->vport = vport; 666 667 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 668 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 669 !(phba->lmt & LMT_1Gb)) || 670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 671 !(phba->lmt & LMT_2Gb)) || 672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 673 !(phba->lmt & LMT_4Gb)) || 674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 675 !(phba->lmt & LMT_8Gb)) || 676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 677 !(phba->lmt & LMT_10Gb)) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 679 !(phba->lmt & LMT_16Gb))) { 680 /* Reset link speed to auto */ 681 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 682 "1302 Invalid speed for this board:%d " 683 "Reset link speed to auto.\n", 684 phba->cfg_link_speed); 685 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 686 } 687 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 688 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 689 if (phba->sli_rev < LPFC_SLI_REV4) 690 lpfc_set_loopback_flag(phba); 691 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 692 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 694 "0498 Adapter failed to init, mbxCmd x%x " 695 "INIT_LINK, mbxStatus x%x\n", 696 mb->mbxCommand, mb->mbxStatus); 697 if (phba->sli_rev <= LPFC_SLI_REV3) { 698 /* Clear all interrupt enable conditions */ 699 writel(0, phba->HCregaddr); 700 readl(phba->HCregaddr); /* flush */ 701 /* Clear all pending interrupts */ 702 writel(0xffffffff, phba->HAregaddr); 703 readl(phba->HAregaddr); /* flush */ 704 } 705 phba->link_state = LPFC_HBA_ERROR; 706 if (rc != MBX_BUSY || flag == MBX_POLL) 707 mempool_free(pmb, phba->mbox_mem_pool); 708 return -EIO; 709 } 710 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 711 if (flag == MBX_POLL) 712 mempool_free(pmb, phba->mbox_mem_pool); 713 714 return 0; 715 } 716 717 /** 718 * lpfc_hba_down_link - this routine downs the FC link 719 * @phba: pointer to lpfc hba data structure. 720 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 721 * 722 * This routine will issue the DOWN_LINK mailbox command call. 723 * It is available to other drivers through the lpfc_hba data 724 * structure for use to stop the link. 725 * 726 * Return code 727 * 0 - success 728 * Any other value - error 729 **/ 730 int 731 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 732 { 733 LPFC_MBOXQ_t *pmb; 734 int rc; 735 736 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 737 if (!pmb) { 738 phba->link_state = LPFC_HBA_ERROR; 739 return -ENOMEM; 740 } 741 742 lpfc_printf_log(phba, 743 KERN_ERR, LOG_INIT, 744 "0491 Adapter Link is disabled.\n"); 745 lpfc_down_link(phba, pmb); 746 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 747 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 748 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 749 lpfc_printf_log(phba, 750 KERN_ERR, LOG_INIT, 751 "2522 Adapter failed to issue DOWN_LINK" 752 " mbox command rc 0x%x\n", rc); 753 754 mempool_free(pmb, phba->mbox_mem_pool); 755 return -EIO; 756 } 757 if (flag == MBX_POLL) 758 mempool_free(pmb, phba->mbox_mem_pool); 759 760 return 0; 761 } 762 763 /** 764 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 765 * @phba: pointer to lpfc HBA data structure. 766 * 767 * This routine will do LPFC uninitialization before the HBA is reset when 768 * bringing down the SLI Layer. 769 * 770 * Return codes 771 * 0 - success. 772 * Any other value - error. 773 **/ 774 int 775 lpfc_hba_down_prep(struct lpfc_hba *phba) 776 { 777 struct lpfc_vport **vports; 778 int i; 779 780 if (phba->sli_rev <= LPFC_SLI_REV3) { 781 /* Disable interrupts */ 782 writel(0, phba->HCregaddr); 783 readl(phba->HCregaddr); /* flush */ 784 } 785 786 if (phba->pport->load_flag & FC_UNLOADING) 787 lpfc_cleanup_discovery_resources(phba->pport); 788 else { 789 vports = lpfc_create_vport_work_array(phba); 790 if (vports != NULL) 791 for (i = 0; i <= phba->max_vports && 792 vports[i] != NULL; i++) 793 lpfc_cleanup_discovery_resources(vports[i]); 794 lpfc_destroy_vport_work_array(phba, vports); 795 } 796 return 0; 797 } 798 799 /** 800 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 801 * @phba: pointer to lpfc HBA data structure. 802 * 803 * This routine will do uninitialization after the HBA is reset when bring 804 * down the SLI Layer. 805 * 806 * Return codes 807 * 0 - success. 808 * Any other value - error. 809 **/ 810 static int 811 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 812 { 813 struct lpfc_sli *psli = &phba->sli; 814 struct lpfc_sli_ring *pring; 815 struct lpfc_dmabuf *mp, *next_mp; 816 LIST_HEAD(completions); 817 int i; 818 819 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 820 lpfc_sli_hbqbuf_free_all(phba); 821 else { 822 /* Cleanup preposted buffers on the ELS ring */ 823 pring = &psli->ring[LPFC_ELS_RING]; 824 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 825 list_del(&mp->list); 826 pring->postbufq_cnt--; 827 lpfc_mbuf_free(phba, mp->virt, mp->phys); 828 kfree(mp); 829 } 830 } 831 832 spin_lock_irq(&phba->hbalock); 833 for (i = 0; i < psli->num_rings; i++) { 834 pring = &psli->ring[i]; 835 836 /* At this point in time the HBA is either reset or DOA. Either 837 * way, nothing should be on txcmplq as it will NEVER complete. 838 */ 839 list_splice_init(&pring->txcmplq, &completions); 840 pring->txcmplq_cnt = 0; 841 spin_unlock_irq(&phba->hbalock); 842 843 /* Cancel all the IOCBs from the completions list */ 844 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 845 IOERR_SLI_ABORTED); 846 847 lpfc_sli_abort_iocb_ring(phba, pring); 848 spin_lock_irq(&phba->hbalock); 849 } 850 spin_unlock_irq(&phba->hbalock); 851 852 return 0; 853 } 854 855 /** 856 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 857 * @phba: pointer to lpfc HBA data structure. 858 * 859 * This routine will do uninitialization after the HBA is reset when bring 860 * down the SLI Layer. 861 * 862 * Return codes 863 * 0 - success. 864 * Any other value - error. 865 **/ 866 static int 867 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 868 { 869 struct lpfc_scsi_buf *psb, *psb_next; 870 LIST_HEAD(aborts); 871 int ret; 872 unsigned long iflag = 0; 873 struct lpfc_sglq *sglq_entry = NULL; 874 875 ret = lpfc_hba_down_post_s3(phba); 876 if (ret) 877 return ret; 878 /* At this point in time the HBA is either reset or DOA. Either 879 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 880 * on the lpfc_sgl_list so that it can either be freed if the 881 * driver is unloading or reposted if the driver is restarting 882 * the port. 883 */ 884 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 885 /* scsl_buf_list */ 886 /* abts_sgl_list_lock required because worker thread uses this 887 * list. 888 */ 889 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 890 list_for_each_entry(sglq_entry, 891 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 892 sglq_entry->state = SGL_FREED; 893 894 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 895 &phba->sli4_hba.lpfc_sgl_list); 896 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 897 /* abts_scsi_buf_list_lock required because worker thread uses this 898 * list. 899 */ 900 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 901 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 902 &aborts); 903 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 904 spin_unlock_irq(&phba->hbalock); 905 906 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 907 psb->pCmd = NULL; 908 psb->status = IOSTAT_SUCCESS; 909 } 910 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 911 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 912 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 913 return 0; 914 } 915 916 /** 917 * lpfc_hba_down_post - Wrapper func for hba down post routine 918 * @phba: pointer to lpfc HBA data structure. 919 * 920 * This routine wraps the actual SLI3 or SLI4 routine for performing 921 * uninitialization after the HBA is reset when bring down the SLI Layer. 922 * 923 * Return codes 924 * 0 - success. 925 * Any other value - error. 926 **/ 927 int 928 lpfc_hba_down_post(struct lpfc_hba *phba) 929 { 930 return (*phba->lpfc_hba_down_post)(phba); 931 } 932 933 /** 934 * lpfc_hb_timeout - The HBA-timer timeout handler 935 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 936 * 937 * This is the HBA-timer timeout handler registered to the lpfc driver. When 938 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 939 * work-port-events bitmap and the worker thread is notified. This timeout 940 * event will be used by the worker thread to invoke the actual timeout 941 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 942 * be performed in the timeout handler and the HBA timeout event bit shall 943 * be cleared by the worker thread after it has taken the event bitmap out. 944 **/ 945 static void 946 lpfc_hb_timeout(unsigned long ptr) 947 { 948 struct lpfc_hba *phba; 949 uint32_t tmo_posted; 950 unsigned long iflag; 951 952 phba = (struct lpfc_hba *)ptr; 953 954 /* Check for heart beat timeout conditions */ 955 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 956 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 957 if (!tmo_posted) 958 phba->pport->work_port_events |= WORKER_HB_TMO; 959 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 960 961 /* Tell the worker thread there is work to do */ 962 if (!tmo_posted) 963 lpfc_worker_wake_up(phba); 964 return; 965 } 966 967 /** 968 * lpfc_rrq_timeout - The RRQ-timer timeout handler 969 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 970 * 971 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 972 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 973 * work-port-events bitmap and the worker thread is notified. This timeout 974 * event will be used by the worker thread to invoke the actual timeout 975 * handler routine, lpfc_rrq_handler. Any periodical operations will 976 * be performed in the timeout handler and the RRQ timeout event bit shall 977 * be cleared by the worker thread after it has taken the event bitmap out. 978 **/ 979 static void 980 lpfc_rrq_timeout(unsigned long ptr) 981 { 982 struct lpfc_hba *phba; 983 unsigned long iflag; 984 985 phba = (struct lpfc_hba *)ptr; 986 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 987 phba->hba_flag |= HBA_RRQ_ACTIVE; 988 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 989 lpfc_worker_wake_up(phba); 990 } 991 992 /** 993 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 994 * @phba: pointer to lpfc hba data structure. 995 * @pmboxq: pointer to the driver internal queue element for mailbox command. 996 * 997 * This is the callback function to the lpfc heart-beat mailbox command. 998 * If configured, the lpfc driver issues the heart-beat mailbox command to 999 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1000 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1001 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1002 * heart-beat outstanding state. Once the mailbox command comes back and 1003 * no error conditions detected, the heart-beat mailbox command timer is 1004 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1005 * state is cleared for the next heart-beat. If the timer expired with the 1006 * heart-beat outstanding state set, the driver will put the HBA offline. 1007 **/ 1008 static void 1009 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1010 { 1011 unsigned long drvr_flag; 1012 1013 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1014 phba->hb_outstanding = 0; 1015 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1016 1017 /* Check and reset heart-beat timer is necessary */ 1018 mempool_free(pmboxq, phba->mbox_mem_pool); 1019 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1020 !(phba->link_state == LPFC_HBA_ERROR) && 1021 !(phba->pport->load_flag & FC_UNLOADING)) 1022 mod_timer(&phba->hb_tmofunc, 1023 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1024 return; 1025 } 1026 1027 /** 1028 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1029 * @phba: pointer to lpfc hba data structure. 1030 * 1031 * This is the actual HBA-timer timeout handler to be invoked by the worker 1032 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1033 * handler performs any periodic operations needed for the device. If such 1034 * periodic event has already been attended to either in the interrupt handler 1035 * or by processing slow-ring or fast-ring events within the HBA-timer 1036 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1037 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1038 * is configured and there is no heart-beat mailbox command outstanding, a 1039 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1040 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1041 * to offline. 1042 **/ 1043 void 1044 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1045 { 1046 struct lpfc_vport **vports; 1047 LPFC_MBOXQ_t *pmboxq; 1048 struct lpfc_dmabuf *buf_ptr; 1049 int retval, i; 1050 struct lpfc_sli *psli = &phba->sli; 1051 LIST_HEAD(completions); 1052 1053 vports = lpfc_create_vport_work_array(phba); 1054 if (vports != NULL) 1055 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1056 lpfc_rcv_seq_check_edtov(vports[i]); 1057 lpfc_destroy_vport_work_array(phba, vports); 1058 1059 if ((phba->link_state == LPFC_HBA_ERROR) || 1060 (phba->pport->load_flag & FC_UNLOADING) || 1061 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1062 return; 1063 1064 spin_lock_irq(&phba->pport->work_port_lock); 1065 1066 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1067 jiffies)) { 1068 spin_unlock_irq(&phba->pport->work_port_lock); 1069 if (!phba->hb_outstanding) 1070 mod_timer(&phba->hb_tmofunc, 1071 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1072 else 1073 mod_timer(&phba->hb_tmofunc, 1074 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1075 return; 1076 } 1077 spin_unlock_irq(&phba->pport->work_port_lock); 1078 1079 if (phba->elsbuf_cnt && 1080 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1081 spin_lock_irq(&phba->hbalock); 1082 list_splice_init(&phba->elsbuf, &completions); 1083 phba->elsbuf_cnt = 0; 1084 phba->elsbuf_prev_cnt = 0; 1085 spin_unlock_irq(&phba->hbalock); 1086 1087 while (!list_empty(&completions)) { 1088 list_remove_head(&completions, buf_ptr, 1089 struct lpfc_dmabuf, list); 1090 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1091 kfree(buf_ptr); 1092 } 1093 } 1094 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1095 1096 /* If there is no heart beat outstanding, issue a heartbeat command */ 1097 if (phba->cfg_enable_hba_heartbeat) { 1098 if (!phba->hb_outstanding) { 1099 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1100 (list_empty(&psli->mboxq))) { 1101 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1102 GFP_KERNEL); 1103 if (!pmboxq) { 1104 mod_timer(&phba->hb_tmofunc, 1105 jiffies + 1106 HZ * LPFC_HB_MBOX_INTERVAL); 1107 return; 1108 } 1109 1110 lpfc_heart_beat(phba, pmboxq); 1111 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1112 pmboxq->vport = phba->pport; 1113 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1114 MBX_NOWAIT); 1115 1116 if (retval != MBX_BUSY && 1117 retval != MBX_SUCCESS) { 1118 mempool_free(pmboxq, 1119 phba->mbox_mem_pool); 1120 mod_timer(&phba->hb_tmofunc, 1121 jiffies + 1122 HZ * LPFC_HB_MBOX_INTERVAL); 1123 return; 1124 } 1125 phba->skipped_hb = 0; 1126 phba->hb_outstanding = 1; 1127 } else if (time_before_eq(phba->last_completion_time, 1128 phba->skipped_hb)) { 1129 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1130 "2857 Last completion time not " 1131 " updated in %d ms\n", 1132 jiffies_to_msecs(jiffies 1133 - phba->last_completion_time)); 1134 } else 1135 phba->skipped_hb = jiffies; 1136 1137 mod_timer(&phba->hb_tmofunc, 1138 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1139 return; 1140 } else { 1141 /* 1142 * If heart beat timeout called with hb_outstanding set 1143 * we need to give the hb mailbox cmd a chance to 1144 * complete or TMO. 1145 */ 1146 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1147 "0459 Adapter heartbeat still out" 1148 "standing:last compl time was %d ms.\n", 1149 jiffies_to_msecs(jiffies 1150 - phba->last_completion_time)); 1151 mod_timer(&phba->hb_tmofunc, 1152 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1153 } 1154 } 1155 } 1156 1157 /** 1158 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1159 * @phba: pointer to lpfc hba data structure. 1160 * 1161 * This routine is called to bring the HBA offline when HBA hardware error 1162 * other than Port Error 6 has been detected. 1163 **/ 1164 static void 1165 lpfc_offline_eratt(struct lpfc_hba *phba) 1166 { 1167 struct lpfc_sli *psli = &phba->sli; 1168 1169 spin_lock_irq(&phba->hbalock); 1170 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1171 spin_unlock_irq(&phba->hbalock); 1172 lpfc_offline_prep(phba); 1173 1174 lpfc_offline(phba); 1175 lpfc_reset_barrier(phba); 1176 spin_lock_irq(&phba->hbalock); 1177 lpfc_sli_brdreset(phba); 1178 spin_unlock_irq(&phba->hbalock); 1179 lpfc_hba_down_post(phba); 1180 lpfc_sli_brdready(phba, HS_MBRDY); 1181 lpfc_unblock_mgmt_io(phba); 1182 phba->link_state = LPFC_HBA_ERROR; 1183 return; 1184 } 1185 1186 /** 1187 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1188 * @phba: pointer to lpfc hba data structure. 1189 * 1190 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1191 * other than Port Error 6 has been detected. 1192 **/ 1193 static void 1194 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1195 { 1196 lpfc_offline_prep(phba); 1197 lpfc_offline(phba); 1198 lpfc_sli4_brdreset(phba); 1199 lpfc_hba_down_post(phba); 1200 lpfc_sli4_post_status_check(phba); 1201 lpfc_unblock_mgmt_io(phba); 1202 phba->link_state = LPFC_HBA_ERROR; 1203 } 1204 1205 /** 1206 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1207 * @phba: pointer to lpfc hba data structure. 1208 * 1209 * This routine is invoked to handle the deferred HBA hardware error 1210 * conditions. This type of error is indicated by HBA by setting ER1 1211 * and another ER bit in the host status register. The driver will 1212 * wait until the ER1 bit clears before handling the error condition. 1213 **/ 1214 static void 1215 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1216 { 1217 uint32_t old_host_status = phba->work_hs; 1218 struct lpfc_sli_ring *pring; 1219 struct lpfc_sli *psli = &phba->sli; 1220 1221 /* If the pci channel is offline, ignore possible errors, 1222 * since we cannot communicate with the pci card anyway. 1223 */ 1224 if (pci_channel_offline(phba->pcidev)) { 1225 spin_lock_irq(&phba->hbalock); 1226 phba->hba_flag &= ~DEFER_ERATT; 1227 spin_unlock_irq(&phba->hbalock); 1228 return; 1229 } 1230 1231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1232 "0479 Deferred Adapter Hardware Error " 1233 "Data: x%x x%x x%x\n", 1234 phba->work_hs, 1235 phba->work_status[0], phba->work_status[1]); 1236 1237 spin_lock_irq(&phba->hbalock); 1238 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1239 spin_unlock_irq(&phba->hbalock); 1240 1241 1242 /* 1243 * Firmware stops when it triggred erratt. That could cause the I/Os 1244 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1245 * SCSI layer retry it after re-establishing link. 1246 */ 1247 pring = &psli->ring[psli->fcp_ring]; 1248 lpfc_sli_abort_iocb_ring(phba, pring); 1249 1250 /* 1251 * There was a firmware error. Take the hba offline and then 1252 * attempt to restart it. 1253 */ 1254 lpfc_offline_prep(phba); 1255 lpfc_offline(phba); 1256 1257 /* Wait for the ER1 bit to clear.*/ 1258 while (phba->work_hs & HS_FFER1) { 1259 msleep(100); 1260 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1261 phba->work_hs = UNPLUG_ERR ; 1262 break; 1263 } 1264 /* If driver is unloading let the worker thread continue */ 1265 if (phba->pport->load_flag & FC_UNLOADING) { 1266 phba->work_hs = 0; 1267 break; 1268 } 1269 } 1270 1271 /* 1272 * This is to ptrotect against a race condition in which 1273 * first write to the host attention register clear the 1274 * host status register. 1275 */ 1276 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1277 phba->work_hs = old_host_status & ~HS_FFER1; 1278 1279 spin_lock_irq(&phba->hbalock); 1280 phba->hba_flag &= ~DEFER_ERATT; 1281 spin_unlock_irq(&phba->hbalock); 1282 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1283 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1284 } 1285 1286 static void 1287 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1288 { 1289 struct lpfc_board_event_header board_event; 1290 struct Scsi_Host *shost; 1291 1292 board_event.event_type = FC_REG_BOARD_EVENT; 1293 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1294 shost = lpfc_shost_from_vport(phba->pport); 1295 fc_host_post_vendor_event(shost, fc_get_event_number(), 1296 sizeof(board_event), 1297 (char *) &board_event, 1298 LPFC_NL_VENDOR_ID); 1299 } 1300 1301 /** 1302 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1303 * @phba: pointer to lpfc hba data structure. 1304 * 1305 * This routine is invoked to handle the following HBA hardware error 1306 * conditions: 1307 * 1 - HBA error attention interrupt 1308 * 2 - DMA ring index out of range 1309 * 3 - Mailbox command came back as unknown 1310 **/ 1311 static void 1312 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1313 { 1314 struct lpfc_vport *vport = phba->pport; 1315 struct lpfc_sli *psli = &phba->sli; 1316 struct lpfc_sli_ring *pring; 1317 uint32_t event_data; 1318 unsigned long temperature; 1319 struct temp_event temp_event_data; 1320 struct Scsi_Host *shost; 1321 1322 /* If the pci channel is offline, ignore possible errors, 1323 * since we cannot communicate with the pci card anyway. 1324 */ 1325 if (pci_channel_offline(phba->pcidev)) { 1326 spin_lock_irq(&phba->hbalock); 1327 phba->hba_flag &= ~DEFER_ERATT; 1328 spin_unlock_irq(&phba->hbalock); 1329 return; 1330 } 1331 1332 /* If resets are disabled then leave the HBA alone and return */ 1333 if (!phba->cfg_enable_hba_reset) 1334 return; 1335 1336 /* Send an internal error event to mgmt application */ 1337 lpfc_board_errevt_to_mgmt(phba); 1338 1339 if (phba->hba_flag & DEFER_ERATT) 1340 lpfc_handle_deferred_eratt(phba); 1341 1342 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1343 if (phba->work_hs & HS_FFER6) 1344 /* Re-establishing Link */ 1345 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1346 "1301 Re-establishing Link " 1347 "Data: x%x x%x x%x\n", 1348 phba->work_hs, phba->work_status[0], 1349 phba->work_status[1]); 1350 if (phba->work_hs & HS_FFER8) 1351 /* Device Zeroization */ 1352 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1353 "2861 Host Authentication device " 1354 "zeroization Data:x%x x%x x%x\n", 1355 phba->work_hs, phba->work_status[0], 1356 phba->work_status[1]); 1357 1358 spin_lock_irq(&phba->hbalock); 1359 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1360 spin_unlock_irq(&phba->hbalock); 1361 1362 /* 1363 * Firmware stops when it triggled erratt with HS_FFER6. 1364 * That could cause the I/Os dropped by the firmware. 1365 * Error iocb (I/O) on txcmplq and let the SCSI layer 1366 * retry it after re-establishing link. 1367 */ 1368 pring = &psli->ring[psli->fcp_ring]; 1369 lpfc_sli_abort_iocb_ring(phba, pring); 1370 1371 /* 1372 * There was a firmware error. Take the hba offline and then 1373 * attempt to restart it. 1374 */ 1375 lpfc_offline_prep(phba); 1376 lpfc_offline(phba); 1377 lpfc_sli_brdrestart(phba); 1378 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1379 lpfc_unblock_mgmt_io(phba); 1380 return; 1381 } 1382 lpfc_unblock_mgmt_io(phba); 1383 } else if (phba->work_hs & HS_CRIT_TEMP) { 1384 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1385 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1386 temp_event_data.event_code = LPFC_CRIT_TEMP; 1387 temp_event_data.data = (uint32_t)temperature; 1388 1389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1390 "0406 Adapter maximum temperature exceeded " 1391 "(%ld), taking this port offline " 1392 "Data: x%x x%x x%x\n", 1393 temperature, phba->work_hs, 1394 phba->work_status[0], phba->work_status[1]); 1395 1396 shost = lpfc_shost_from_vport(phba->pport); 1397 fc_host_post_vendor_event(shost, fc_get_event_number(), 1398 sizeof(temp_event_data), 1399 (char *) &temp_event_data, 1400 SCSI_NL_VID_TYPE_PCI 1401 | PCI_VENDOR_ID_EMULEX); 1402 1403 spin_lock_irq(&phba->hbalock); 1404 phba->over_temp_state = HBA_OVER_TEMP; 1405 spin_unlock_irq(&phba->hbalock); 1406 lpfc_offline_eratt(phba); 1407 1408 } else { 1409 /* The if clause above forces this code path when the status 1410 * failure is a value other than FFER6. Do not call the offline 1411 * twice. This is the adapter hardware error path. 1412 */ 1413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1414 "0457 Adapter Hardware Error " 1415 "Data: x%x x%x x%x\n", 1416 phba->work_hs, 1417 phba->work_status[0], phba->work_status[1]); 1418 1419 event_data = FC_REG_DUMP_EVENT; 1420 shost = lpfc_shost_from_vport(vport); 1421 fc_host_post_vendor_event(shost, fc_get_event_number(), 1422 sizeof(event_data), (char *) &event_data, 1423 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1424 1425 lpfc_offline_eratt(phba); 1426 } 1427 return; 1428 } 1429 1430 /** 1431 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1432 * @phba: pointer to lpfc hba data structure. 1433 * 1434 * This routine is invoked to handle the SLI4 HBA hardware error attention 1435 * conditions. 1436 **/ 1437 static void 1438 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1439 { 1440 struct lpfc_vport *vport = phba->pport; 1441 uint32_t event_data; 1442 struct Scsi_Host *shost; 1443 uint32_t if_type; 1444 struct lpfc_register portstat_reg = {0}; 1445 uint32_t reg_err1, reg_err2; 1446 uint32_t uerrlo_reg, uemasklo_reg; 1447 uint32_t pci_rd_rc1, pci_rd_rc2; 1448 int rc; 1449 1450 /* If the pci channel is offline, ignore possible errors, since 1451 * we cannot communicate with the pci card anyway. 1452 */ 1453 if (pci_channel_offline(phba->pcidev)) 1454 return; 1455 /* If resets are disabled then leave the HBA alone and return */ 1456 if (!phba->cfg_enable_hba_reset) 1457 return; 1458 1459 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1460 switch (if_type) { 1461 case LPFC_SLI_INTF_IF_TYPE_0: 1462 pci_rd_rc1 = lpfc_readl( 1463 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1464 &uerrlo_reg); 1465 pci_rd_rc2 = lpfc_readl( 1466 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1467 &uemasklo_reg); 1468 /* consider PCI bus read error as pci_channel_offline */ 1469 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1470 return; 1471 lpfc_sli4_offline_eratt(phba); 1472 break; 1473 case LPFC_SLI_INTF_IF_TYPE_2: 1474 pci_rd_rc1 = lpfc_readl( 1475 phba->sli4_hba.u.if_type2.STATUSregaddr, 1476 &portstat_reg.word0); 1477 /* consider PCI bus read error as pci_channel_offline */ 1478 if (pci_rd_rc1 == -EIO) { 1479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1480 "3151 PCI bus read access failure: x%x\n", 1481 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1482 return; 1483 } 1484 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1485 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1486 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1487 /* TODO: Register for Overtemp async events. */ 1488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1489 "2889 Port Overtemperature event, " 1490 "taking port offline\n"); 1491 spin_lock_irq(&phba->hbalock); 1492 phba->over_temp_state = HBA_OVER_TEMP; 1493 spin_unlock_irq(&phba->hbalock); 1494 lpfc_sli4_offline_eratt(phba); 1495 break; 1496 } 1497 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1498 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1499 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1500 "3143 Port Down: Firmware Restarted\n"); 1501 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1502 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1504 "3144 Port Down: Debug Dump\n"); 1505 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1506 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1508 "3145 Port Down: Provisioning\n"); 1509 /* 1510 * On error status condition, driver need to wait for port 1511 * ready before performing reset. 1512 */ 1513 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1514 if (!rc) { 1515 /* need reset: attempt for port recovery */ 1516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1517 "2887 Reset Needed: Attempting Port " 1518 "Recovery...\n"); 1519 lpfc_offline_prep(phba); 1520 lpfc_offline(phba); 1521 lpfc_sli_brdrestart(phba); 1522 if (lpfc_online(phba) == 0) { 1523 lpfc_unblock_mgmt_io(phba); 1524 /* don't report event on forced debug dump */ 1525 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1526 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1527 return; 1528 else 1529 break; 1530 } 1531 /* fall through for not able to recover */ 1532 } 1533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1534 "3152 Unrecoverable error, bring the port " 1535 "offline\n"); 1536 lpfc_sli4_offline_eratt(phba); 1537 break; 1538 case LPFC_SLI_INTF_IF_TYPE_1: 1539 default: 1540 break; 1541 } 1542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1543 "3123 Report dump event to upper layer\n"); 1544 /* Send an internal error event to mgmt application */ 1545 lpfc_board_errevt_to_mgmt(phba); 1546 1547 event_data = FC_REG_DUMP_EVENT; 1548 shost = lpfc_shost_from_vport(vport); 1549 fc_host_post_vendor_event(shost, fc_get_event_number(), 1550 sizeof(event_data), (char *) &event_data, 1551 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1552 } 1553 1554 /** 1555 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1556 * @phba: pointer to lpfc HBA data structure. 1557 * 1558 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1559 * routine from the API jump table function pointer from the lpfc_hba struct. 1560 * 1561 * Return codes 1562 * 0 - success. 1563 * Any other value - error. 1564 **/ 1565 void 1566 lpfc_handle_eratt(struct lpfc_hba *phba) 1567 { 1568 (*phba->lpfc_handle_eratt)(phba); 1569 } 1570 1571 /** 1572 * lpfc_handle_latt - The HBA link event handler 1573 * @phba: pointer to lpfc hba data structure. 1574 * 1575 * This routine is invoked from the worker thread to handle a HBA host 1576 * attention link event. 1577 **/ 1578 void 1579 lpfc_handle_latt(struct lpfc_hba *phba) 1580 { 1581 struct lpfc_vport *vport = phba->pport; 1582 struct lpfc_sli *psli = &phba->sli; 1583 LPFC_MBOXQ_t *pmb; 1584 volatile uint32_t control; 1585 struct lpfc_dmabuf *mp; 1586 int rc = 0; 1587 1588 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1589 if (!pmb) { 1590 rc = 1; 1591 goto lpfc_handle_latt_err_exit; 1592 } 1593 1594 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1595 if (!mp) { 1596 rc = 2; 1597 goto lpfc_handle_latt_free_pmb; 1598 } 1599 1600 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1601 if (!mp->virt) { 1602 rc = 3; 1603 goto lpfc_handle_latt_free_mp; 1604 } 1605 1606 /* Cleanup any outstanding ELS commands */ 1607 lpfc_els_flush_all_cmd(phba); 1608 1609 psli->slistat.link_event++; 1610 lpfc_read_topology(phba, pmb, mp); 1611 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1612 pmb->vport = vport; 1613 /* Block ELS IOCBs until we have processed this mbox command */ 1614 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1615 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1616 if (rc == MBX_NOT_FINISHED) { 1617 rc = 4; 1618 goto lpfc_handle_latt_free_mbuf; 1619 } 1620 1621 /* Clear Link Attention in HA REG */ 1622 spin_lock_irq(&phba->hbalock); 1623 writel(HA_LATT, phba->HAregaddr); 1624 readl(phba->HAregaddr); /* flush */ 1625 spin_unlock_irq(&phba->hbalock); 1626 1627 return; 1628 1629 lpfc_handle_latt_free_mbuf: 1630 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1631 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1632 lpfc_handle_latt_free_mp: 1633 kfree(mp); 1634 lpfc_handle_latt_free_pmb: 1635 mempool_free(pmb, phba->mbox_mem_pool); 1636 lpfc_handle_latt_err_exit: 1637 /* Enable Link attention interrupts */ 1638 spin_lock_irq(&phba->hbalock); 1639 psli->sli_flag |= LPFC_PROCESS_LA; 1640 control = readl(phba->HCregaddr); 1641 control |= HC_LAINT_ENA; 1642 writel(control, phba->HCregaddr); 1643 readl(phba->HCregaddr); /* flush */ 1644 1645 /* Clear Link Attention in HA REG */ 1646 writel(HA_LATT, phba->HAregaddr); 1647 readl(phba->HAregaddr); /* flush */ 1648 spin_unlock_irq(&phba->hbalock); 1649 lpfc_linkdown(phba); 1650 phba->link_state = LPFC_HBA_ERROR; 1651 1652 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1653 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1654 1655 return; 1656 } 1657 1658 /** 1659 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1660 * @phba: pointer to lpfc hba data structure. 1661 * @vpd: pointer to the vital product data. 1662 * @len: length of the vital product data in bytes. 1663 * 1664 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1665 * an array of characters. In this routine, the ModelName, ProgramType, and 1666 * ModelDesc, etc. fields of the phba data structure will be populated. 1667 * 1668 * Return codes 1669 * 0 - pointer to the VPD passed in is NULL 1670 * 1 - success 1671 **/ 1672 int 1673 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1674 { 1675 uint8_t lenlo, lenhi; 1676 int Length; 1677 int i, j; 1678 int finished = 0; 1679 int index = 0; 1680 1681 if (!vpd) 1682 return 0; 1683 1684 /* Vital Product */ 1685 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1686 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1687 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1688 (uint32_t) vpd[3]); 1689 while (!finished && (index < (len - 4))) { 1690 switch (vpd[index]) { 1691 case 0x82: 1692 case 0x91: 1693 index += 1; 1694 lenlo = vpd[index]; 1695 index += 1; 1696 lenhi = vpd[index]; 1697 index += 1; 1698 i = ((((unsigned short)lenhi) << 8) + lenlo); 1699 index += i; 1700 break; 1701 case 0x90: 1702 index += 1; 1703 lenlo = vpd[index]; 1704 index += 1; 1705 lenhi = vpd[index]; 1706 index += 1; 1707 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1708 if (Length > len - index) 1709 Length = len - index; 1710 while (Length > 0) { 1711 /* Look for Serial Number */ 1712 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1713 index += 2; 1714 i = vpd[index]; 1715 index += 1; 1716 j = 0; 1717 Length -= (3+i); 1718 while(i--) { 1719 phba->SerialNumber[j++] = vpd[index++]; 1720 if (j == 31) 1721 break; 1722 } 1723 phba->SerialNumber[j] = 0; 1724 continue; 1725 } 1726 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1727 phba->vpd_flag |= VPD_MODEL_DESC; 1728 index += 2; 1729 i = vpd[index]; 1730 index += 1; 1731 j = 0; 1732 Length -= (3+i); 1733 while(i--) { 1734 phba->ModelDesc[j++] = vpd[index++]; 1735 if (j == 255) 1736 break; 1737 } 1738 phba->ModelDesc[j] = 0; 1739 continue; 1740 } 1741 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1742 phba->vpd_flag |= VPD_MODEL_NAME; 1743 index += 2; 1744 i = vpd[index]; 1745 index += 1; 1746 j = 0; 1747 Length -= (3+i); 1748 while(i--) { 1749 phba->ModelName[j++] = vpd[index++]; 1750 if (j == 79) 1751 break; 1752 } 1753 phba->ModelName[j] = 0; 1754 continue; 1755 } 1756 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1757 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1758 index += 2; 1759 i = vpd[index]; 1760 index += 1; 1761 j = 0; 1762 Length -= (3+i); 1763 while(i--) { 1764 phba->ProgramType[j++] = vpd[index++]; 1765 if (j == 255) 1766 break; 1767 } 1768 phba->ProgramType[j] = 0; 1769 continue; 1770 } 1771 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1772 phba->vpd_flag |= VPD_PORT; 1773 index += 2; 1774 i = vpd[index]; 1775 index += 1; 1776 j = 0; 1777 Length -= (3+i); 1778 while(i--) { 1779 if ((phba->sli_rev == LPFC_SLI_REV4) && 1780 (phba->sli4_hba.pport_name_sta == 1781 LPFC_SLI4_PPNAME_GET)) { 1782 j++; 1783 index++; 1784 } else 1785 phba->Port[j++] = vpd[index++]; 1786 if (j == 19) 1787 break; 1788 } 1789 if ((phba->sli_rev != LPFC_SLI_REV4) || 1790 (phba->sli4_hba.pport_name_sta == 1791 LPFC_SLI4_PPNAME_NON)) 1792 phba->Port[j] = 0; 1793 continue; 1794 } 1795 else { 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 index += i; 1800 Length -= (3 + i); 1801 } 1802 } 1803 finished = 0; 1804 break; 1805 case 0x78: 1806 finished = 1; 1807 break; 1808 default: 1809 index ++; 1810 break; 1811 } 1812 } 1813 1814 return(1); 1815 } 1816 1817 /** 1818 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1819 * @phba: pointer to lpfc hba data structure. 1820 * @mdp: pointer to the data structure to hold the derived model name. 1821 * @descp: pointer to the data structure to hold the derived description. 1822 * 1823 * This routine retrieves HBA's description based on its registered PCI device 1824 * ID. The @descp passed into this function points to an array of 256 chars. It 1825 * shall be returned with the model name, maximum speed, and the host bus type. 1826 * The @mdp passed into this function points to an array of 80 chars. When the 1827 * function returns, the @mdp will be filled with the model name. 1828 **/ 1829 static void 1830 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1831 { 1832 lpfc_vpd_t *vp; 1833 uint16_t dev_id = phba->pcidev->device; 1834 int max_speed; 1835 int GE = 0; 1836 int oneConnect = 0; /* default is not a oneConnect */ 1837 struct { 1838 char *name; 1839 char *bus; 1840 char *function; 1841 } m = {"<Unknown>", "", ""}; 1842 1843 if (mdp && mdp[0] != '\0' 1844 && descp && descp[0] != '\0') 1845 return; 1846 1847 if (phba->lmt & LMT_16Gb) 1848 max_speed = 16; 1849 else if (phba->lmt & LMT_10Gb) 1850 max_speed = 10; 1851 else if (phba->lmt & LMT_8Gb) 1852 max_speed = 8; 1853 else if (phba->lmt & LMT_4Gb) 1854 max_speed = 4; 1855 else if (phba->lmt & LMT_2Gb) 1856 max_speed = 2; 1857 else 1858 max_speed = 1; 1859 1860 vp = &phba->vpd; 1861 1862 switch (dev_id) { 1863 case PCI_DEVICE_ID_FIREFLY: 1864 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1865 break; 1866 case PCI_DEVICE_ID_SUPERFLY: 1867 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1868 m = (typeof(m)){"LP7000", "PCI", 1869 "Fibre Channel Adapter"}; 1870 else 1871 m = (typeof(m)){"LP7000E", "PCI", 1872 "Fibre Channel Adapter"}; 1873 break; 1874 case PCI_DEVICE_ID_DRAGONFLY: 1875 m = (typeof(m)){"LP8000", "PCI", 1876 "Fibre Channel Adapter"}; 1877 break; 1878 case PCI_DEVICE_ID_CENTAUR: 1879 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1880 m = (typeof(m)){"LP9002", "PCI", 1881 "Fibre Channel Adapter"}; 1882 else 1883 m = (typeof(m)){"LP9000", "PCI", 1884 "Fibre Channel Adapter"}; 1885 break; 1886 case PCI_DEVICE_ID_RFLY: 1887 m = (typeof(m)){"LP952", "PCI", 1888 "Fibre Channel Adapter"}; 1889 break; 1890 case PCI_DEVICE_ID_PEGASUS: 1891 m = (typeof(m)){"LP9802", "PCI-X", 1892 "Fibre Channel Adapter"}; 1893 break; 1894 case PCI_DEVICE_ID_THOR: 1895 m = (typeof(m)){"LP10000", "PCI-X", 1896 "Fibre Channel Adapter"}; 1897 break; 1898 case PCI_DEVICE_ID_VIPER: 1899 m = (typeof(m)){"LPX1000", "PCI-X", 1900 "Fibre Channel Adapter"}; 1901 break; 1902 case PCI_DEVICE_ID_PFLY: 1903 m = (typeof(m)){"LP982", "PCI-X", 1904 "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_TFLY: 1907 m = (typeof(m)){"LP1050", "PCI-X", 1908 "Fibre Channel Adapter"}; 1909 break; 1910 case PCI_DEVICE_ID_HELIOS: 1911 m = (typeof(m)){"LP11000", "PCI-X2", 1912 "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_HELIOS_SCSP: 1915 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1916 "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_HELIOS_DCSP: 1919 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1920 "Fibre Channel Adapter"}; 1921 break; 1922 case PCI_DEVICE_ID_NEPTUNE: 1923 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1924 break; 1925 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1926 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1929 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1930 break; 1931 case PCI_DEVICE_ID_BMID: 1932 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_BSMB: 1935 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1936 break; 1937 case PCI_DEVICE_ID_ZEPHYR: 1938 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1939 break; 1940 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1941 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1942 break; 1943 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1944 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1945 GE = 1; 1946 break; 1947 case PCI_DEVICE_ID_ZMID: 1948 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1949 break; 1950 case PCI_DEVICE_ID_ZSMB: 1951 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1952 break; 1953 case PCI_DEVICE_ID_LP101: 1954 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1955 break; 1956 case PCI_DEVICE_ID_LP10000S: 1957 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1958 break; 1959 case PCI_DEVICE_ID_LP11000S: 1960 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1961 break; 1962 case PCI_DEVICE_ID_LPE11000S: 1963 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_SAT: 1966 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_SAT_MID: 1969 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_SAT_SMB: 1972 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 1973 break; 1974 case PCI_DEVICE_ID_SAT_DCSP: 1975 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_SAT_SCSP: 1978 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_SAT_S: 1981 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_HORNET: 1984 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 1985 GE = 1; 1986 break; 1987 case PCI_DEVICE_ID_PROTEUS_VF: 1988 m = (typeof(m)){"LPev12000", "PCIe IOV", 1989 "Fibre Channel Adapter"}; 1990 break; 1991 case PCI_DEVICE_ID_PROTEUS_PF: 1992 m = (typeof(m)){"LPev12000", "PCIe IOV", 1993 "Fibre Channel Adapter"}; 1994 break; 1995 case PCI_DEVICE_ID_PROTEUS_S: 1996 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 1997 "Fibre Channel Adapter"}; 1998 break; 1999 case PCI_DEVICE_ID_TIGERSHARK: 2000 oneConnect = 1; 2001 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2002 break; 2003 case PCI_DEVICE_ID_TOMCAT: 2004 oneConnect = 1; 2005 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2006 break; 2007 case PCI_DEVICE_ID_FALCON: 2008 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2009 "EmulexSecure Fibre"}; 2010 break; 2011 case PCI_DEVICE_ID_BALIUS: 2012 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2013 "Fibre Channel Adapter"}; 2014 break; 2015 case PCI_DEVICE_ID_LANCER_FC: 2016 case PCI_DEVICE_ID_LANCER_FC_VF: 2017 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2018 break; 2019 case PCI_DEVICE_ID_LANCER_FCOE: 2020 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2021 oneConnect = 1; 2022 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2023 break; 2024 default: 2025 m = (typeof(m)){"Unknown", "", ""}; 2026 break; 2027 } 2028 2029 if (mdp && mdp[0] == '\0') 2030 snprintf(mdp, 79,"%s", m.name); 2031 /* 2032 * oneConnect hba requires special processing, they are all initiators 2033 * and we put the port number on the end 2034 */ 2035 if (descp && descp[0] == '\0') { 2036 if (oneConnect) 2037 snprintf(descp, 255, 2038 "Emulex OneConnect %s, %s Initiator, Port %s", 2039 m.name, m.function, 2040 phba->Port); 2041 else 2042 snprintf(descp, 255, 2043 "Emulex %s %d%s %s %s", 2044 m.name, max_speed, (GE) ? "GE" : "Gb", 2045 m.bus, m.function); 2046 } 2047 } 2048 2049 /** 2050 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2051 * @phba: pointer to lpfc hba data structure. 2052 * @pring: pointer to a IOCB ring. 2053 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2054 * 2055 * This routine posts a given number of IOCBs with the associated DMA buffer 2056 * descriptors specified by the cnt argument to the given IOCB ring. 2057 * 2058 * Return codes 2059 * The number of IOCBs NOT able to be posted to the IOCB ring. 2060 **/ 2061 int 2062 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2063 { 2064 IOCB_t *icmd; 2065 struct lpfc_iocbq *iocb; 2066 struct lpfc_dmabuf *mp1, *mp2; 2067 2068 cnt += pring->missbufcnt; 2069 2070 /* While there are buffers to post */ 2071 while (cnt > 0) { 2072 /* Allocate buffer for command iocb */ 2073 iocb = lpfc_sli_get_iocbq(phba); 2074 if (iocb == NULL) { 2075 pring->missbufcnt = cnt; 2076 return cnt; 2077 } 2078 icmd = &iocb->iocb; 2079 2080 /* 2 buffers can be posted per command */ 2081 /* Allocate buffer to post */ 2082 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2083 if (mp1) 2084 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2085 if (!mp1 || !mp1->virt) { 2086 kfree(mp1); 2087 lpfc_sli_release_iocbq(phba, iocb); 2088 pring->missbufcnt = cnt; 2089 return cnt; 2090 } 2091 2092 INIT_LIST_HEAD(&mp1->list); 2093 /* Allocate buffer to post */ 2094 if (cnt > 1) { 2095 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2096 if (mp2) 2097 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2098 &mp2->phys); 2099 if (!mp2 || !mp2->virt) { 2100 kfree(mp2); 2101 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2102 kfree(mp1); 2103 lpfc_sli_release_iocbq(phba, iocb); 2104 pring->missbufcnt = cnt; 2105 return cnt; 2106 } 2107 2108 INIT_LIST_HEAD(&mp2->list); 2109 } else { 2110 mp2 = NULL; 2111 } 2112 2113 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2114 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2115 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2116 icmd->ulpBdeCount = 1; 2117 cnt--; 2118 if (mp2) { 2119 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2120 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2121 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2122 cnt--; 2123 icmd->ulpBdeCount = 2; 2124 } 2125 2126 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2127 icmd->ulpLe = 1; 2128 2129 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2130 IOCB_ERROR) { 2131 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2132 kfree(mp1); 2133 cnt++; 2134 if (mp2) { 2135 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2136 kfree(mp2); 2137 cnt++; 2138 } 2139 lpfc_sli_release_iocbq(phba, iocb); 2140 pring->missbufcnt = cnt; 2141 return cnt; 2142 } 2143 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2144 if (mp2) 2145 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2146 } 2147 pring->missbufcnt = 0; 2148 return 0; 2149 } 2150 2151 /** 2152 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2153 * @phba: pointer to lpfc hba data structure. 2154 * 2155 * This routine posts initial receive IOCB buffers to the ELS ring. The 2156 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2157 * set to 64 IOCBs. 2158 * 2159 * Return codes 2160 * 0 - success (currently always success) 2161 **/ 2162 static int 2163 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2164 { 2165 struct lpfc_sli *psli = &phba->sli; 2166 2167 /* Ring 0, ELS / CT buffers */ 2168 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2169 /* Ring 2 - FCP no buffers needed */ 2170 2171 return 0; 2172 } 2173 2174 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2175 2176 /** 2177 * lpfc_sha_init - Set up initial array of hash table entries 2178 * @HashResultPointer: pointer to an array as hash table. 2179 * 2180 * This routine sets up the initial values to the array of hash table entries 2181 * for the LC HBAs. 2182 **/ 2183 static void 2184 lpfc_sha_init(uint32_t * HashResultPointer) 2185 { 2186 HashResultPointer[0] = 0x67452301; 2187 HashResultPointer[1] = 0xEFCDAB89; 2188 HashResultPointer[2] = 0x98BADCFE; 2189 HashResultPointer[3] = 0x10325476; 2190 HashResultPointer[4] = 0xC3D2E1F0; 2191 } 2192 2193 /** 2194 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2195 * @HashResultPointer: pointer to an initial/result hash table. 2196 * @HashWorkingPointer: pointer to an working hash table. 2197 * 2198 * This routine iterates an initial hash table pointed by @HashResultPointer 2199 * with the values from the working hash table pointeed by @HashWorkingPointer. 2200 * The results are putting back to the initial hash table, returned through 2201 * the @HashResultPointer as the result hash table. 2202 **/ 2203 static void 2204 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2205 { 2206 int t; 2207 uint32_t TEMP; 2208 uint32_t A, B, C, D, E; 2209 t = 16; 2210 do { 2211 HashWorkingPointer[t] = 2212 S(1, 2213 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2214 8] ^ 2215 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2216 } while (++t <= 79); 2217 t = 0; 2218 A = HashResultPointer[0]; 2219 B = HashResultPointer[1]; 2220 C = HashResultPointer[2]; 2221 D = HashResultPointer[3]; 2222 E = HashResultPointer[4]; 2223 2224 do { 2225 if (t < 20) { 2226 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2227 } else if (t < 40) { 2228 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2229 } else if (t < 60) { 2230 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2231 } else { 2232 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2233 } 2234 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2235 E = D; 2236 D = C; 2237 C = S(30, B); 2238 B = A; 2239 A = TEMP; 2240 } while (++t <= 79); 2241 2242 HashResultPointer[0] += A; 2243 HashResultPointer[1] += B; 2244 HashResultPointer[2] += C; 2245 HashResultPointer[3] += D; 2246 HashResultPointer[4] += E; 2247 2248 } 2249 2250 /** 2251 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2252 * @RandomChallenge: pointer to the entry of host challenge random number array. 2253 * @HashWorking: pointer to the entry of the working hash array. 2254 * 2255 * This routine calculates the working hash array referred by @HashWorking 2256 * from the challenge random numbers associated with the host, referred by 2257 * @RandomChallenge. The result is put into the entry of the working hash 2258 * array and returned by reference through @HashWorking. 2259 **/ 2260 static void 2261 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2262 { 2263 *HashWorking = (*RandomChallenge ^ *HashWorking); 2264 } 2265 2266 /** 2267 * lpfc_hba_init - Perform special handling for LC HBA initialization 2268 * @phba: pointer to lpfc hba data structure. 2269 * @hbainit: pointer to an array of unsigned 32-bit integers. 2270 * 2271 * This routine performs the special handling for LC HBA initialization. 2272 **/ 2273 void 2274 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2275 { 2276 int t; 2277 uint32_t *HashWorking; 2278 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2279 2280 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2281 if (!HashWorking) 2282 return; 2283 2284 HashWorking[0] = HashWorking[78] = *pwwnn++; 2285 HashWorking[1] = HashWorking[79] = *pwwnn; 2286 2287 for (t = 0; t < 7; t++) 2288 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2289 2290 lpfc_sha_init(hbainit); 2291 lpfc_sha_iterate(hbainit, HashWorking); 2292 kfree(HashWorking); 2293 } 2294 2295 /** 2296 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2297 * @vport: pointer to a virtual N_Port data structure. 2298 * 2299 * This routine performs the necessary cleanups before deleting the @vport. 2300 * It invokes the discovery state machine to perform necessary state 2301 * transitions and to release the ndlps associated with the @vport. Note, 2302 * the physical port is treated as @vport 0. 2303 **/ 2304 void 2305 lpfc_cleanup(struct lpfc_vport *vport) 2306 { 2307 struct lpfc_hba *phba = vport->phba; 2308 struct lpfc_nodelist *ndlp, *next_ndlp; 2309 int i = 0; 2310 2311 if (phba->link_state > LPFC_LINK_DOWN) 2312 lpfc_port_link_failure(vport); 2313 2314 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2315 if (!NLP_CHK_NODE_ACT(ndlp)) { 2316 ndlp = lpfc_enable_node(vport, ndlp, 2317 NLP_STE_UNUSED_NODE); 2318 if (!ndlp) 2319 continue; 2320 spin_lock_irq(&phba->ndlp_lock); 2321 NLP_SET_FREE_REQ(ndlp); 2322 spin_unlock_irq(&phba->ndlp_lock); 2323 /* Trigger the release of the ndlp memory */ 2324 lpfc_nlp_put(ndlp); 2325 continue; 2326 } 2327 spin_lock_irq(&phba->ndlp_lock); 2328 if (NLP_CHK_FREE_REQ(ndlp)) { 2329 /* The ndlp should not be in memory free mode already */ 2330 spin_unlock_irq(&phba->ndlp_lock); 2331 continue; 2332 } else 2333 /* Indicate request for freeing ndlp memory */ 2334 NLP_SET_FREE_REQ(ndlp); 2335 spin_unlock_irq(&phba->ndlp_lock); 2336 2337 if (vport->port_type != LPFC_PHYSICAL_PORT && 2338 ndlp->nlp_DID == Fabric_DID) { 2339 /* Just free up ndlp with Fabric_DID for vports */ 2340 lpfc_nlp_put(ndlp); 2341 continue; 2342 } 2343 2344 /* take care of nodes in unused state before the state 2345 * machine taking action. 2346 */ 2347 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2348 lpfc_nlp_put(ndlp); 2349 continue; 2350 } 2351 2352 if (ndlp->nlp_type & NLP_FABRIC) 2353 lpfc_disc_state_machine(vport, ndlp, NULL, 2354 NLP_EVT_DEVICE_RECOVERY); 2355 2356 lpfc_disc_state_machine(vport, ndlp, NULL, 2357 NLP_EVT_DEVICE_RM); 2358 } 2359 2360 /* At this point, ALL ndlp's should be gone 2361 * because of the previous NLP_EVT_DEVICE_RM. 2362 * Lets wait for this to happen, if needed. 2363 */ 2364 while (!list_empty(&vport->fc_nodes)) { 2365 if (i++ > 3000) { 2366 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2367 "0233 Nodelist not empty\n"); 2368 list_for_each_entry_safe(ndlp, next_ndlp, 2369 &vport->fc_nodes, nlp_listp) { 2370 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2371 LOG_NODE, 2372 "0282 did:x%x ndlp:x%p " 2373 "usgmap:x%x refcnt:%d\n", 2374 ndlp->nlp_DID, (void *)ndlp, 2375 ndlp->nlp_usg_map, 2376 atomic_read( 2377 &ndlp->kref.refcount)); 2378 } 2379 break; 2380 } 2381 2382 /* Wait for any activity on ndlps to settle */ 2383 msleep(10); 2384 } 2385 lpfc_cleanup_vports_rrqs(vport, NULL); 2386 } 2387 2388 /** 2389 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2390 * @vport: pointer to a virtual N_Port data structure. 2391 * 2392 * This routine stops all the timers associated with a @vport. This function 2393 * is invoked before disabling or deleting a @vport. Note that the physical 2394 * port is treated as @vport 0. 2395 **/ 2396 void 2397 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2398 { 2399 del_timer_sync(&vport->els_tmofunc); 2400 del_timer_sync(&vport->fc_fdmitmo); 2401 del_timer_sync(&vport->delayed_disc_tmo); 2402 lpfc_can_disctmo(vport); 2403 return; 2404 } 2405 2406 /** 2407 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2408 * @phba: pointer to lpfc hba data structure. 2409 * 2410 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2411 * caller of this routine should already hold the host lock. 2412 **/ 2413 void 2414 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2415 { 2416 /* Clear pending FCF rediscovery wait flag */ 2417 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2418 2419 /* Now, try to stop the timer */ 2420 del_timer(&phba->fcf.redisc_wait); 2421 } 2422 2423 /** 2424 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2425 * @phba: pointer to lpfc hba data structure. 2426 * 2427 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2428 * checks whether the FCF rediscovery wait timer is pending with the host 2429 * lock held before proceeding with disabling the timer and clearing the 2430 * wait timer pendig flag. 2431 **/ 2432 void 2433 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2434 { 2435 spin_lock_irq(&phba->hbalock); 2436 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2437 /* FCF rediscovery timer already fired or stopped */ 2438 spin_unlock_irq(&phba->hbalock); 2439 return; 2440 } 2441 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2442 /* Clear failover in progress flags */ 2443 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2444 spin_unlock_irq(&phba->hbalock); 2445 } 2446 2447 /** 2448 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2449 * @phba: pointer to lpfc hba data structure. 2450 * 2451 * This routine stops all the timers associated with a HBA. This function is 2452 * invoked before either putting a HBA offline or unloading the driver. 2453 **/ 2454 void 2455 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2456 { 2457 lpfc_stop_vport_timers(phba->pport); 2458 del_timer_sync(&phba->sli.mbox_tmo); 2459 del_timer_sync(&phba->fabric_block_timer); 2460 del_timer_sync(&phba->eratt_poll); 2461 del_timer_sync(&phba->hb_tmofunc); 2462 if (phba->sli_rev == LPFC_SLI_REV4) { 2463 del_timer_sync(&phba->rrq_tmr); 2464 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2465 } 2466 phba->hb_outstanding = 0; 2467 2468 switch (phba->pci_dev_grp) { 2469 case LPFC_PCI_DEV_LP: 2470 /* Stop any LightPulse device specific driver timers */ 2471 del_timer_sync(&phba->fcp_poll_timer); 2472 break; 2473 case LPFC_PCI_DEV_OC: 2474 /* Stop any OneConnect device sepcific driver timers */ 2475 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2476 break; 2477 default: 2478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2479 "0297 Invalid device group (x%x)\n", 2480 phba->pci_dev_grp); 2481 break; 2482 } 2483 return; 2484 } 2485 2486 /** 2487 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2488 * @phba: pointer to lpfc hba data structure. 2489 * 2490 * This routine marks a HBA's management interface as blocked. Once the HBA's 2491 * management interface is marked as blocked, all the user space access to 2492 * the HBA, whether they are from sysfs interface or libdfc interface will 2493 * all be blocked. The HBA is set to block the management interface when the 2494 * driver prepares the HBA interface for online or offline. 2495 **/ 2496 static void 2497 lpfc_block_mgmt_io(struct lpfc_hba * phba) 2498 { 2499 unsigned long iflag; 2500 uint8_t actcmd = MBX_HEARTBEAT; 2501 unsigned long timeout; 2502 2503 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2504 spin_lock_irqsave(&phba->hbalock, iflag); 2505 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2506 if (phba->sli.mbox_active) { 2507 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2508 /* Determine how long we might wait for the active mailbox 2509 * command to be gracefully completed by firmware. 2510 */ 2511 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2512 phba->sli.mbox_active) * 1000) + jiffies; 2513 } 2514 spin_unlock_irqrestore(&phba->hbalock, iflag); 2515 2516 /* Wait for the outstnading mailbox command to complete */ 2517 while (phba->sli.mbox_active) { 2518 /* Check active mailbox complete status every 2ms */ 2519 msleep(2); 2520 if (time_after(jiffies, timeout)) { 2521 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2522 "2813 Mgmt IO is Blocked %x " 2523 "- mbox cmd %x still active\n", 2524 phba->sli.sli_flag, actcmd); 2525 break; 2526 } 2527 } 2528 } 2529 2530 /** 2531 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2532 * @phba: pointer to lpfc hba data structure. 2533 * 2534 * Allocate RPIs for all active remote nodes. This is needed whenever 2535 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2536 * is to fixup the temporary rpi assignments. 2537 **/ 2538 void 2539 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2540 { 2541 struct lpfc_nodelist *ndlp, *next_ndlp; 2542 struct lpfc_vport **vports; 2543 int i; 2544 2545 if (phba->sli_rev != LPFC_SLI_REV4) 2546 return; 2547 2548 vports = lpfc_create_vport_work_array(phba); 2549 if (vports != NULL) { 2550 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2551 if (vports[i]->load_flag & FC_UNLOADING) 2552 continue; 2553 2554 list_for_each_entry_safe(ndlp, next_ndlp, 2555 &vports[i]->fc_nodes, 2556 nlp_listp) { 2557 if (NLP_CHK_NODE_ACT(ndlp)) 2558 ndlp->nlp_rpi = 2559 lpfc_sli4_alloc_rpi(phba); 2560 } 2561 } 2562 } 2563 lpfc_destroy_vport_work_array(phba, vports); 2564 } 2565 2566 /** 2567 * lpfc_online - Initialize and bring a HBA online 2568 * @phba: pointer to lpfc hba data structure. 2569 * 2570 * This routine initializes the HBA and brings a HBA online. During this 2571 * process, the management interface is blocked to prevent user space access 2572 * to the HBA interfering with the driver initialization. 2573 * 2574 * Return codes 2575 * 0 - successful 2576 * 1 - failed 2577 **/ 2578 int 2579 lpfc_online(struct lpfc_hba *phba) 2580 { 2581 struct lpfc_vport *vport; 2582 struct lpfc_vport **vports; 2583 int i; 2584 2585 if (!phba) 2586 return 0; 2587 vport = phba->pport; 2588 2589 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2590 return 0; 2591 2592 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2593 "0458 Bring Adapter online\n"); 2594 2595 lpfc_block_mgmt_io(phba); 2596 2597 if (!lpfc_sli_queue_setup(phba)) { 2598 lpfc_unblock_mgmt_io(phba); 2599 return 1; 2600 } 2601 2602 if (phba->sli_rev == LPFC_SLI_REV4) { 2603 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2604 lpfc_unblock_mgmt_io(phba); 2605 return 1; 2606 } 2607 } else { 2608 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2609 lpfc_unblock_mgmt_io(phba); 2610 return 1; 2611 } 2612 } 2613 2614 vports = lpfc_create_vport_work_array(phba); 2615 if (vports != NULL) 2616 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2617 struct Scsi_Host *shost; 2618 shost = lpfc_shost_from_vport(vports[i]); 2619 spin_lock_irq(shost->host_lock); 2620 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2621 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2622 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2623 if (phba->sli_rev == LPFC_SLI_REV4) 2624 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2625 spin_unlock_irq(shost->host_lock); 2626 } 2627 lpfc_destroy_vport_work_array(phba, vports); 2628 2629 lpfc_unblock_mgmt_io(phba); 2630 return 0; 2631 } 2632 2633 /** 2634 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2635 * @phba: pointer to lpfc hba data structure. 2636 * 2637 * This routine marks a HBA's management interface as not blocked. Once the 2638 * HBA's management interface is marked as not blocked, all the user space 2639 * access to the HBA, whether they are from sysfs interface or libdfc 2640 * interface will be allowed. The HBA is set to block the management interface 2641 * when the driver prepares the HBA interface for online or offline and then 2642 * set to unblock the management interface afterwards. 2643 **/ 2644 void 2645 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2646 { 2647 unsigned long iflag; 2648 2649 spin_lock_irqsave(&phba->hbalock, iflag); 2650 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2651 spin_unlock_irqrestore(&phba->hbalock, iflag); 2652 } 2653 2654 /** 2655 * lpfc_offline_prep - Prepare a HBA to be brought offline 2656 * @phba: pointer to lpfc hba data structure. 2657 * 2658 * This routine is invoked to prepare a HBA to be brought offline. It performs 2659 * unregistration login to all the nodes on all vports and flushes the mailbox 2660 * queue to make it ready to be brought offline. 2661 **/ 2662 void 2663 lpfc_offline_prep(struct lpfc_hba * phba) 2664 { 2665 struct lpfc_vport *vport = phba->pport; 2666 struct lpfc_nodelist *ndlp, *next_ndlp; 2667 struct lpfc_vport **vports; 2668 struct Scsi_Host *shost; 2669 int i; 2670 2671 if (vport->fc_flag & FC_OFFLINE_MODE) 2672 return; 2673 2674 lpfc_block_mgmt_io(phba); 2675 2676 lpfc_linkdown(phba); 2677 2678 /* Issue an unreg_login to all nodes on all vports */ 2679 vports = lpfc_create_vport_work_array(phba); 2680 if (vports != NULL) { 2681 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2682 if (vports[i]->load_flag & FC_UNLOADING) 2683 continue; 2684 shost = lpfc_shost_from_vport(vports[i]); 2685 spin_lock_irq(shost->host_lock); 2686 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2687 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2688 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2689 spin_unlock_irq(shost->host_lock); 2690 2691 shost = lpfc_shost_from_vport(vports[i]); 2692 list_for_each_entry_safe(ndlp, next_ndlp, 2693 &vports[i]->fc_nodes, 2694 nlp_listp) { 2695 if (!NLP_CHK_NODE_ACT(ndlp)) 2696 continue; 2697 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2698 continue; 2699 if (ndlp->nlp_type & NLP_FABRIC) { 2700 lpfc_disc_state_machine(vports[i], ndlp, 2701 NULL, NLP_EVT_DEVICE_RECOVERY); 2702 lpfc_disc_state_machine(vports[i], ndlp, 2703 NULL, NLP_EVT_DEVICE_RM); 2704 } 2705 spin_lock_irq(shost->host_lock); 2706 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2707 spin_unlock_irq(shost->host_lock); 2708 /* 2709 * Whenever an SLI4 port goes offline, free the 2710 * RPI. Get a new RPI when the adapter port 2711 * comes back online. 2712 */ 2713 if (phba->sli_rev == LPFC_SLI_REV4) 2714 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2715 lpfc_unreg_rpi(vports[i], ndlp); 2716 } 2717 } 2718 } 2719 lpfc_destroy_vport_work_array(phba, vports); 2720 2721 lpfc_sli_mbox_sys_shutdown(phba); 2722 } 2723 2724 /** 2725 * lpfc_offline - Bring a HBA offline 2726 * @phba: pointer to lpfc hba data structure. 2727 * 2728 * This routine actually brings a HBA offline. It stops all the timers 2729 * associated with the HBA, brings down the SLI layer, and eventually 2730 * marks the HBA as in offline state for the upper layer protocol. 2731 **/ 2732 void 2733 lpfc_offline(struct lpfc_hba *phba) 2734 { 2735 struct Scsi_Host *shost; 2736 struct lpfc_vport **vports; 2737 int i; 2738 2739 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2740 return; 2741 2742 /* stop port and all timers associated with this hba */ 2743 lpfc_stop_port(phba); 2744 vports = lpfc_create_vport_work_array(phba); 2745 if (vports != NULL) 2746 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2747 lpfc_stop_vport_timers(vports[i]); 2748 lpfc_destroy_vport_work_array(phba, vports); 2749 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2750 "0460 Bring Adapter offline\n"); 2751 /* Bring down the SLI Layer and cleanup. The HBA is offline 2752 now. */ 2753 lpfc_sli_hba_down(phba); 2754 spin_lock_irq(&phba->hbalock); 2755 phba->work_ha = 0; 2756 spin_unlock_irq(&phba->hbalock); 2757 vports = lpfc_create_vport_work_array(phba); 2758 if (vports != NULL) 2759 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2760 shost = lpfc_shost_from_vport(vports[i]); 2761 spin_lock_irq(shost->host_lock); 2762 vports[i]->work_port_events = 0; 2763 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2764 spin_unlock_irq(shost->host_lock); 2765 } 2766 lpfc_destroy_vport_work_array(phba, vports); 2767 } 2768 2769 /** 2770 * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated. 2771 * @phba: pointer to lpfc hba data structure. 2772 * 2773 * This routine goes through all the scsi buffers in the system and updates the 2774 * Physical XRIs assigned to the SCSI buffer because these may change after any 2775 * firmware reset 2776 * 2777 * Return codes 2778 * 0 - successful (for now, it always returns 0) 2779 **/ 2780 int 2781 lpfc_scsi_buf_update(struct lpfc_hba *phba) 2782 { 2783 struct lpfc_scsi_buf *sb, *sb_next; 2784 2785 spin_lock_irq(&phba->hbalock); 2786 spin_lock(&phba->scsi_buf_list_lock); 2787 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2788 sb->cur_iocbq.sli4_xritag = 2789 phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag]; 2790 set_bit(sb->cur_iocbq.sli4_lxritag, phba->sli4_hba.xri_bmask); 2791 phba->sli4_hba.max_cfg_param.xri_used++; 2792 phba->sli4_hba.xri_count++; 2793 } 2794 spin_unlock(&phba->scsi_buf_list_lock); 2795 spin_unlock_irq(&phba->hbalock); 2796 return 0; 2797 } 2798 2799 /** 2800 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2801 * @phba: pointer to lpfc hba data structure. 2802 * 2803 * This routine is to free all the SCSI buffers and IOCBs from the driver 2804 * list back to kernel. It is called from lpfc_pci_remove_one to free 2805 * the internal resources before the device is removed from the system. 2806 * 2807 * Return codes 2808 * 0 - successful (for now, it always returns 0) 2809 **/ 2810 static int 2811 lpfc_scsi_free(struct lpfc_hba *phba) 2812 { 2813 struct lpfc_scsi_buf *sb, *sb_next; 2814 struct lpfc_iocbq *io, *io_next; 2815 2816 spin_lock_irq(&phba->hbalock); 2817 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2818 spin_lock(&phba->scsi_buf_list_lock); 2819 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2820 list_del(&sb->list); 2821 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2822 sb->dma_handle); 2823 kfree(sb); 2824 phba->total_scsi_bufs--; 2825 } 2826 spin_unlock(&phba->scsi_buf_list_lock); 2827 2828 /* Release all the lpfc_iocbq entries maintained by this host. */ 2829 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2830 list_del(&io->list); 2831 kfree(io); 2832 phba->total_iocbq_bufs--; 2833 } 2834 2835 spin_unlock_irq(&phba->hbalock); 2836 return 0; 2837 } 2838 2839 /** 2840 * lpfc_create_port - Create an FC port 2841 * @phba: pointer to lpfc hba data structure. 2842 * @instance: a unique integer ID to this FC port. 2843 * @dev: pointer to the device data structure. 2844 * 2845 * This routine creates a FC port for the upper layer protocol. The FC port 2846 * can be created on top of either a physical port or a virtual port provided 2847 * by the HBA. This routine also allocates a SCSI host data structure (shost) 2848 * and associates the FC port created before adding the shost into the SCSI 2849 * layer. 2850 * 2851 * Return codes 2852 * @vport - pointer to the virtual N_Port data structure. 2853 * NULL - port create failed. 2854 **/ 2855 struct lpfc_vport * 2856 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 2857 { 2858 struct lpfc_vport *vport; 2859 struct Scsi_Host *shost; 2860 int error = 0; 2861 2862 if (dev != &phba->pcidev->dev) 2863 shost = scsi_host_alloc(&lpfc_vport_template, 2864 sizeof(struct lpfc_vport)); 2865 else 2866 shost = scsi_host_alloc(&lpfc_template, 2867 sizeof(struct lpfc_vport)); 2868 if (!shost) 2869 goto out; 2870 2871 vport = (struct lpfc_vport *) shost->hostdata; 2872 vport->phba = phba; 2873 vport->load_flag |= FC_LOADING; 2874 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2875 vport->fc_rscn_flush = 0; 2876 2877 lpfc_get_vport_cfgparam(vport); 2878 shost->unique_id = instance; 2879 shost->max_id = LPFC_MAX_TARGET; 2880 shost->max_lun = vport->cfg_max_luns; 2881 shost->this_id = -1; 2882 shost->max_cmd_len = 16; 2883 if (phba->sli_rev == LPFC_SLI_REV4) { 2884 shost->dma_boundary = 2885 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 2886 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 2887 } 2888 2889 /* 2890 * Set initial can_queue value since 0 is no longer supported and 2891 * scsi_add_host will fail. This will be adjusted later based on the 2892 * max xri value determined in hba setup. 2893 */ 2894 shost->can_queue = phba->cfg_hba_queue_depth - 10; 2895 if (dev != &phba->pcidev->dev) { 2896 shost->transportt = lpfc_vport_transport_template; 2897 vport->port_type = LPFC_NPIV_PORT; 2898 } else { 2899 shost->transportt = lpfc_transport_template; 2900 vport->port_type = LPFC_PHYSICAL_PORT; 2901 } 2902 2903 /* Initialize all internally managed lists. */ 2904 INIT_LIST_HEAD(&vport->fc_nodes); 2905 INIT_LIST_HEAD(&vport->rcv_buffer_list); 2906 spin_lock_init(&vport->work_port_lock); 2907 2908 init_timer(&vport->fc_disctmo); 2909 vport->fc_disctmo.function = lpfc_disc_timeout; 2910 vport->fc_disctmo.data = (unsigned long)vport; 2911 2912 init_timer(&vport->fc_fdmitmo); 2913 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 2914 vport->fc_fdmitmo.data = (unsigned long)vport; 2915 2916 init_timer(&vport->els_tmofunc); 2917 vport->els_tmofunc.function = lpfc_els_timeout; 2918 vport->els_tmofunc.data = (unsigned long)vport; 2919 2920 init_timer(&vport->delayed_disc_tmo); 2921 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 2922 vport->delayed_disc_tmo.data = (unsigned long)vport; 2923 2924 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 2925 if (error) 2926 goto out_put_shost; 2927 2928 spin_lock_irq(&phba->hbalock); 2929 list_add_tail(&vport->listentry, &phba->port_list); 2930 spin_unlock_irq(&phba->hbalock); 2931 return vport; 2932 2933 out_put_shost: 2934 scsi_host_put(shost); 2935 out: 2936 return NULL; 2937 } 2938 2939 /** 2940 * destroy_port - destroy an FC port 2941 * @vport: pointer to an lpfc virtual N_Port data structure. 2942 * 2943 * This routine destroys a FC port from the upper layer protocol. All the 2944 * resources associated with the port are released. 2945 **/ 2946 void 2947 destroy_port(struct lpfc_vport *vport) 2948 { 2949 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 2950 struct lpfc_hba *phba = vport->phba; 2951 2952 lpfc_debugfs_terminate(vport); 2953 fc_remove_host(shost); 2954 scsi_remove_host(shost); 2955 2956 spin_lock_irq(&phba->hbalock); 2957 list_del_init(&vport->listentry); 2958 spin_unlock_irq(&phba->hbalock); 2959 2960 lpfc_cleanup(vport); 2961 return; 2962 } 2963 2964 /** 2965 * lpfc_get_instance - Get a unique integer ID 2966 * 2967 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 2968 * uses the kernel idr facility to perform the task. 2969 * 2970 * Return codes: 2971 * instance - a unique integer ID allocated as the new instance. 2972 * -1 - lpfc get instance failed. 2973 **/ 2974 int 2975 lpfc_get_instance(void) 2976 { 2977 int instance = 0; 2978 2979 /* Assign an unused number */ 2980 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 2981 return -1; 2982 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 2983 return -1; 2984 return instance; 2985 } 2986 2987 /** 2988 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 2989 * @shost: pointer to SCSI host data structure. 2990 * @time: elapsed time of the scan in jiffies. 2991 * 2992 * This routine is called by the SCSI layer with a SCSI host to determine 2993 * whether the scan host is finished. 2994 * 2995 * Note: there is no scan_start function as adapter initialization will have 2996 * asynchronously kicked off the link initialization. 2997 * 2998 * Return codes 2999 * 0 - SCSI host scan is not over yet. 3000 * 1 - SCSI host scan is over. 3001 **/ 3002 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3003 { 3004 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3005 struct lpfc_hba *phba = vport->phba; 3006 int stat = 0; 3007 3008 spin_lock_irq(shost->host_lock); 3009 3010 if (vport->load_flag & FC_UNLOADING) { 3011 stat = 1; 3012 goto finished; 3013 } 3014 if (time >= 30 * HZ) { 3015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3016 "0461 Scanning longer than 30 " 3017 "seconds. Continuing initialization\n"); 3018 stat = 1; 3019 goto finished; 3020 } 3021 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3022 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3023 "0465 Link down longer than 15 " 3024 "seconds. Continuing initialization\n"); 3025 stat = 1; 3026 goto finished; 3027 } 3028 3029 if (vport->port_state != LPFC_VPORT_READY) 3030 goto finished; 3031 if (vport->num_disc_nodes || vport->fc_prli_sent) 3032 goto finished; 3033 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3034 goto finished; 3035 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3036 goto finished; 3037 3038 stat = 1; 3039 3040 finished: 3041 spin_unlock_irq(shost->host_lock); 3042 return stat; 3043 } 3044 3045 /** 3046 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3047 * @shost: pointer to SCSI host data structure. 3048 * 3049 * This routine initializes a given SCSI host attributes on a FC port. The 3050 * SCSI host can be either on top of a physical port or a virtual port. 3051 **/ 3052 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3053 { 3054 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3055 struct lpfc_hba *phba = vport->phba; 3056 /* 3057 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3058 */ 3059 3060 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3061 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3062 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3063 3064 memset(fc_host_supported_fc4s(shost), 0, 3065 sizeof(fc_host_supported_fc4s(shost))); 3066 fc_host_supported_fc4s(shost)[2] = 1; 3067 fc_host_supported_fc4s(shost)[7] = 1; 3068 3069 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3070 sizeof fc_host_symbolic_name(shost)); 3071 3072 fc_host_supported_speeds(shost) = 0; 3073 if (phba->lmt & LMT_16Gb) 3074 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3075 if (phba->lmt & LMT_10Gb) 3076 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3077 if (phba->lmt & LMT_8Gb) 3078 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3079 if (phba->lmt & LMT_4Gb) 3080 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3081 if (phba->lmt & LMT_2Gb) 3082 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3083 if (phba->lmt & LMT_1Gb) 3084 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3085 3086 fc_host_maxframe_size(shost) = 3087 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3088 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3089 3090 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3091 3092 /* This value is also unchanging */ 3093 memset(fc_host_active_fc4s(shost), 0, 3094 sizeof(fc_host_active_fc4s(shost))); 3095 fc_host_active_fc4s(shost)[2] = 1; 3096 fc_host_active_fc4s(shost)[7] = 1; 3097 3098 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3099 spin_lock_irq(shost->host_lock); 3100 vport->load_flag &= ~FC_LOADING; 3101 spin_unlock_irq(shost->host_lock); 3102 } 3103 3104 /** 3105 * lpfc_stop_port_s3 - Stop SLI3 device port 3106 * @phba: pointer to lpfc hba data structure. 3107 * 3108 * This routine is invoked to stop an SLI3 device port, it stops the device 3109 * from generating interrupts and stops the device driver's timers for the 3110 * device. 3111 **/ 3112 static void 3113 lpfc_stop_port_s3(struct lpfc_hba *phba) 3114 { 3115 /* Clear all interrupt enable conditions */ 3116 writel(0, phba->HCregaddr); 3117 readl(phba->HCregaddr); /* flush */ 3118 /* Clear all pending interrupts */ 3119 writel(0xffffffff, phba->HAregaddr); 3120 readl(phba->HAregaddr); /* flush */ 3121 3122 /* Reset some HBA SLI setup states */ 3123 lpfc_stop_hba_timers(phba); 3124 phba->pport->work_port_events = 0; 3125 } 3126 3127 /** 3128 * lpfc_stop_port_s4 - Stop SLI4 device port 3129 * @phba: pointer to lpfc hba data structure. 3130 * 3131 * This routine is invoked to stop an SLI4 device port, it stops the device 3132 * from generating interrupts and stops the device driver's timers for the 3133 * device. 3134 **/ 3135 static void 3136 lpfc_stop_port_s4(struct lpfc_hba *phba) 3137 { 3138 /* Reset some HBA SLI4 setup states */ 3139 lpfc_stop_hba_timers(phba); 3140 phba->pport->work_port_events = 0; 3141 phba->sli4_hba.intr_enable = 0; 3142 } 3143 3144 /** 3145 * lpfc_stop_port - Wrapper function for stopping hba port 3146 * @phba: Pointer to HBA context object. 3147 * 3148 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3149 * the API jump table function pointer from the lpfc_hba struct. 3150 **/ 3151 void 3152 lpfc_stop_port(struct lpfc_hba *phba) 3153 { 3154 phba->lpfc_stop_port(phba); 3155 } 3156 3157 /** 3158 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3159 * @phba: Pointer to hba for which this call is being executed. 3160 * 3161 * This routine starts the timer waiting for the FCF rediscovery to complete. 3162 **/ 3163 void 3164 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3165 { 3166 unsigned long fcf_redisc_wait_tmo = 3167 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3168 /* Start fcf rediscovery wait period timer */ 3169 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3170 spin_lock_irq(&phba->hbalock); 3171 /* Allow action to new fcf asynchronous event */ 3172 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3173 /* Mark the FCF rediscovery pending state */ 3174 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3175 spin_unlock_irq(&phba->hbalock); 3176 } 3177 3178 /** 3179 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3180 * @ptr: Map to lpfc_hba data structure pointer. 3181 * 3182 * This routine is invoked when waiting for FCF table rediscover has been 3183 * timed out. If new FCF record(s) has (have) been discovered during the 3184 * wait period, a new FCF event shall be added to the FCOE async event 3185 * list, and then worker thread shall be waked up for processing from the 3186 * worker thread context. 3187 **/ 3188 void 3189 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3190 { 3191 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3192 3193 /* Don't send FCF rediscovery event if timer cancelled */ 3194 spin_lock_irq(&phba->hbalock); 3195 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3196 spin_unlock_irq(&phba->hbalock); 3197 return; 3198 } 3199 /* Clear FCF rediscovery timer pending flag */ 3200 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3201 /* FCF rediscovery event to worker thread */ 3202 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3203 spin_unlock_irq(&phba->hbalock); 3204 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3205 "2776 FCF rediscover quiescent timer expired\n"); 3206 /* wake up worker thread */ 3207 lpfc_worker_wake_up(phba); 3208 } 3209 3210 /** 3211 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3212 * @phba: pointer to lpfc hba data structure. 3213 * @acqe_link: pointer to the async link completion queue entry. 3214 * 3215 * This routine is to parse the SLI4 link-attention link fault code and 3216 * translate it into the base driver's read link attention mailbox command 3217 * status. 3218 * 3219 * Return: Link-attention status in terms of base driver's coding. 3220 **/ 3221 static uint16_t 3222 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3223 struct lpfc_acqe_link *acqe_link) 3224 { 3225 uint16_t latt_fault; 3226 3227 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3228 case LPFC_ASYNC_LINK_FAULT_NONE: 3229 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3230 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3231 latt_fault = 0; 3232 break; 3233 default: 3234 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3235 "0398 Invalid link fault code: x%x\n", 3236 bf_get(lpfc_acqe_link_fault, acqe_link)); 3237 latt_fault = MBXERR_ERROR; 3238 break; 3239 } 3240 return latt_fault; 3241 } 3242 3243 /** 3244 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3245 * @phba: pointer to lpfc hba data structure. 3246 * @acqe_link: pointer to the async link completion queue entry. 3247 * 3248 * This routine is to parse the SLI4 link attention type and translate it 3249 * into the base driver's link attention type coding. 3250 * 3251 * Return: Link attention type in terms of base driver's coding. 3252 **/ 3253 static uint8_t 3254 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3255 struct lpfc_acqe_link *acqe_link) 3256 { 3257 uint8_t att_type; 3258 3259 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3260 case LPFC_ASYNC_LINK_STATUS_DOWN: 3261 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3262 att_type = LPFC_ATT_LINK_DOWN; 3263 break; 3264 case LPFC_ASYNC_LINK_STATUS_UP: 3265 /* Ignore physical link up events - wait for logical link up */ 3266 att_type = LPFC_ATT_RESERVED; 3267 break; 3268 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3269 att_type = LPFC_ATT_LINK_UP; 3270 break; 3271 default: 3272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3273 "0399 Invalid link attention type: x%x\n", 3274 bf_get(lpfc_acqe_link_status, acqe_link)); 3275 att_type = LPFC_ATT_RESERVED; 3276 break; 3277 } 3278 return att_type; 3279 } 3280 3281 /** 3282 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3283 * @phba: pointer to lpfc hba data structure. 3284 * @acqe_link: pointer to the async link completion queue entry. 3285 * 3286 * This routine is to parse the SLI4 link-attention link speed and translate 3287 * it into the base driver's link-attention link speed coding. 3288 * 3289 * Return: Link-attention link speed in terms of base driver's coding. 3290 **/ 3291 static uint8_t 3292 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3293 struct lpfc_acqe_link *acqe_link) 3294 { 3295 uint8_t link_speed; 3296 3297 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3298 case LPFC_ASYNC_LINK_SPEED_ZERO: 3299 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3300 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3301 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3302 break; 3303 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3304 link_speed = LPFC_LINK_SPEED_1GHZ; 3305 break; 3306 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3307 link_speed = LPFC_LINK_SPEED_10GHZ; 3308 break; 3309 default: 3310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3311 "0483 Invalid link-attention link speed: x%x\n", 3312 bf_get(lpfc_acqe_link_speed, acqe_link)); 3313 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3314 break; 3315 } 3316 return link_speed; 3317 } 3318 3319 /** 3320 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3321 * @phba: pointer to lpfc hba data structure. 3322 * @acqe_link: pointer to the async link completion queue entry. 3323 * 3324 * This routine is to handle the SLI4 asynchronous FCoE link event. 3325 **/ 3326 static void 3327 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3328 struct lpfc_acqe_link *acqe_link) 3329 { 3330 struct lpfc_dmabuf *mp; 3331 LPFC_MBOXQ_t *pmb; 3332 MAILBOX_t *mb; 3333 struct lpfc_mbx_read_top *la; 3334 uint8_t att_type; 3335 int rc; 3336 3337 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3338 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3339 return; 3340 phba->fcoe_eventtag = acqe_link->event_tag; 3341 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3342 if (!pmb) { 3343 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3344 "0395 The mboxq allocation failed\n"); 3345 return; 3346 } 3347 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3348 if (!mp) { 3349 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3350 "0396 The lpfc_dmabuf allocation failed\n"); 3351 goto out_free_pmb; 3352 } 3353 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3354 if (!mp->virt) { 3355 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3356 "0397 The mbuf allocation failed\n"); 3357 goto out_free_dmabuf; 3358 } 3359 3360 /* Cleanup any outstanding ELS commands */ 3361 lpfc_els_flush_all_cmd(phba); 3362 3363 /* Block ELS IOCBs until we have done process link event */ 3364 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3365 3366 /* Update link event statistics */ 3367 phba->sli.slistat.link_event++; 3368 3369 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3370 lpfc_read_topology(phba, pmb, mp); 3371 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3372 pmb->vport = phba->pport; 3373 3374 /* Keep the link status for extra SLI4 state machine reference */ 3375 phba->sli4_hba.link_state.speed = 3376 bf_get(lpfc_acqe_link_speed, acqe_link); 3377 phba->sli4_hba.link_state.duplex = 3378 bf_get(lpfc_acqe_link_duplex, acqe_link); 3379 phba->sli4_hba.link_state.status = 3380 bf_get(lpfc_acqe_link_status, acqe_link); 3381 phba->sli4_hba.link_state.type = 3382 bf_get(lpfc_acqe_link_type, acqe_link); 3383 phba->sli4_hba.link_state.number = 3384 bf_get(lpfc_acqe_link_number, acqe_link); 3385 phba->sli4_hba.link_state.fault = 3386 bf_get(lpfc_acqe_link_fault, acqe_link); 3387 phba->sli4_hba.link_state.logical_speed = 3388 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3389 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3390 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3391 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3392 "Logical speed:%dMbps Fault:%d\n", 3393 phba->sli4_hba.link_state.speed, 3394 phba->sli4_hba.link_state.topology, 3395 phba->sli4_hba.link_state.status, 3396 phba->sli4_hba.link_state.type, 3397 phba->sli4_hba.link_state.number, 3398 phba->sli4_hba.link_state.logical_speed * 10, 3399 phba->sli4_hba.link_state.fault); 3400 /* 3401 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3402 * topology info. Note: Optional for non FC-AL ports. 3403 */ 3404 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3405 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3406 if (rc == MBX_NOT_FINISHED) 3407 goto out_free_dmabuf; 3408 return; 3409 } 3410 /* 3411 * For FCoE Mode: fill in all the topology information we need and call 3412 * the READ_TOPOLOGY completion routine to continue without actually 3413 * sending the READ_TOPOLOGY mailbox command to the port. 3414 */ 3415 /* Parse and translate status field */ 3416 mb = &pmb->u.mb; 3417 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3418 3419 /* Parse and translate link attention fields */ 3420 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3421 la->eventTag = acqe_link->event_tag; 3422 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3423 bf_set(lpfc_mbx_read_top_link_spd, la, 3424 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3425 3426 /* Fake the the following irrelvant fields */ 3427 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3428 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3429 bf_set(lpfc_mbx_read_top_il, la, 0); 3430 bf_set(lpfc_mbx_read_top_pb, la, 0); 3431 bf_set(lpfc_mbx_read_top_fa, la, 0); 3432 bf_set(lpfc_mbx_read_top_mm, la, 0); 3433 3434 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3435 lpfc_mbx_cmpl_read_topology(phba, pmb); 3436 3437 return; 3438 3439 out_free_dmabuf: 3440 kfree(mp); 3441 out_free_pmb: 3442 mempool_free(pmb, phba->mbox_mem_pool); 3443 } 3444 3445 /** 3446 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3447 * @phba: pointer to lpfc hba data structure. 3448 * @acqe_fc: pointer to the async fc completion queue entry. 3449 * 3450 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3451 * that the event was received and then issue a read_topology mailbox command so 3452 * that the rest of the driver will treat it the same as SLI3. 3453 **/ 3454 static void 3455 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3456 { 3457 struct lpfc_dmabuf *mp; 3458 LPFC_MBOXQ_t *pmb; 3459 int rc; 3460 3461 if (bf_get(lpfc_trailer_type, acqe_fc) != 3462 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3464 "2895 Non FC link Event detected.(%d)\n", 3465 bf_get(lpfc_trailer_type, acqe_fc)); 3466 return; 3467 } 3468 /* Keep the link status for extra SLI4 state machine reference */ 3469 phba->sli4_hba.link_state.speed = 3470 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3471 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3472 phba->sli4_hba.link_state.topology = 3473 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3474 phba->sli4_hba.link_state.status = 3475 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3476 phba->sli4_hba.link_state.type = 3477 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3478 phba->sli4_hba.link_state.number = 3479 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3480 phba->sli4_hba.link_state.fault = 3481 bf_get(lpfc_acqe_link_fault, acqe_fc); 3482 phba->sli4_hba.link_state.logical_speed = 3483 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3484 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3485 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3486 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3487 "%dMbps Fault:%d\n", 3488 phba->sli4_hba.link_state.speed, 3489 phba->sli4_hba.link_state.topology, 3490 phba->sli4_hba.link_state.status, 3491 phba->sli4_hba.link_state.type, 3492 phba->sli4_hba.link_state.number, 3493 phba->sli4_hba.link_state.logical_speed * 10, 3494 phba->sli4_hba.link_state.fault); 3495 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3496 if (!pmb) { 3497 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3498 "2897 The mboxq allocation failed\n"); 3499 return; 3500 } 3501 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3502 if (!mp) { 3503 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3504 "2898 The lpfc_dmabuf allocation failed\n"); 3505 goto out_free_pmb; 3506 } 3507 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3508 if (!mp->virt) { 3509 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3510 "2899 The mbuf allocation failed\n"); 3511 goto out_free_dmabuf; 3512 } 3513 3514 /* Cleanup any outstanding ELS commands */ 3515 lpfc_els_flush_all_cmd(phba); 3516 3517 /* Block ELS IOCBs until we have done process link event */ 3518 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3519 3520 /* Update link event statistics */ 3521 phba->sli.slistat.link_event++; 3522 3523 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3524 lpfc_read_topology(phba, pmb, mp); 3525 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3526 pmb->vport = phba->pport; 3527 3528 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3529 if (rc == MBX_NOT_FINISHED) 3530 goto out_free_dmabuf; 3531 return; 3532 3533 out_free_dmabuf: 3534 kfree(mp); 3535 out_free_pmb: 3536 mempool_free(pmb, phba->mbox_mem_pool); 3537 } 3538 3539 /** 3540 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3541 * @phba: pointer to lpfc hba data structure. 3542 * @acqe_fc: pointer to the async SLI completion queue entry. 3543 * 3544 * This routine is to handle the SLI4 asynchronous SLI events. 3545 **/ 3546 static void 3547 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3548 { 3549 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3550 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3551 "x%08x SLI Event Type:%d", 3552 acqe_sli->event_data1, acqe_sli->event_data2, 3553 bf_get(lpfc_trailer_type, acqe_sli)); 3554 return; 3555 } 3556 3557 /** 3558 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3559 * @vport: pointer to vport data structure. 3560 * 3561 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3562 * response to a CVL event. 3563 * 3564 * Return the pointer to the ndlp with the vport if successful, otherwise 3565 * return NULL. 3566 **/ 3567 static struct lpfc_nodelist * 3568 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3569 { 3570 struct lpfc_nodelist *ndlp; 3571 struct Scsi_Host *shost; 3572 struct lpfc_hba *phba; 3573 3574 if (!vport) 3575 return NULL; 3576 phba = vport->phba; 3577 if (!phba) 3578 return NULL; 3579 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3580 if (!ndlp) { 3581 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3582 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3583 if (!ndlp) 3584 return 0; 3585 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3586 /* Set the node type */ 3587 ndlp->nlp_type |= NLP_FABRIC; 3588 /* Put ndlp onto node list */ 3589 lpfc_enqueue_node(vport, ndlp); 3590 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3591 /* re-setup ndlp without removing from node list */ 3592 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3593 if (!ndlp) 3594 return 0; 3595 } 3596 if ((phba->pport->port_state < LPFC_FLOGI) && 3597 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3598 return NULL; 3599 /* If virtual link is not yet instantiated ignore CVL */ 3600 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3601 && (vport->port_state != LPFC_VPORT_FAILED)) 3602 return NULL; 3603 shost = lpfc_shost_from_vport(vport); 3604 if (!shost) 3605 return NULL; 3606 lpfc_linkdown_port(vport); 3607 lpfc_cleanup_pending_mbox(vport); 3608 spin_lock_irq(shost->host_lock); 3609 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3610 spin_unlock_irq(shost->host_lock); 3611 3612 return ndlp; 3613 } 3614 3615 /** 3616 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3617 * @vport: pointer to lpfc hba data structure. 3618 * 3619 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3620 * response to a FCF dead event. 3621 **/ 3622 static void 3623 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3624 { 3625 struct lpfc_vport **vports; 3626 int i; 3627 3628 vports = lpfc_create_vport_work_array(phba); 3629 if (vports) 3630 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3631 lpfc_sli4_perform_vport_cvl(vports[i]); 3632 lpfc_destroy_vport_work_array(phba, vports); 3633 } 3634 3635 /** 3636 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3637 * @phba: pointer to lpfc hba data structure. 3638 * @acqe_link: pointer to the async fcoe completion queue entry. 3639 * 3640 * This routine is to handle the SLI4 asynchronous fcoe event. 3641 **/ 3642 static void 3643 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3644 struct lpfc_acqe_fip *acqe_fip) 3645 { 3646 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3647 int rc; 3648 struct lpfc_vport *vport; 3649 struct lpfc_nodelist *ndlp; 3650 struct Scsi_Host *shost; 3651 int active_vlink_present; 3652 struct lpfc_vport **vports; 3653 int i; 3654 3655 phba->fc_eventTag = acqe_fip->event_tag; 3656 phba->fcoe_eventtag = acqe_fip->event_tag; 3657 switch (event_type) { 3658 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3659 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3660 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3661 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3662 LOG_DISCOVERY, 3663 "2546 New FCF event, evt_tag:x%x, " 3664 "index:x%x\n", 3665 acqe_fip->event_tag, 3666 acqe_fip->index); 3667 else 3668 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3669 LOG_DISCOVERY, 3670 "2788 FCF param modified event, " 3671 "evt_tag:x%x, index:x%x\n", 3672 acqe_fip->event_tag, 3673 acqe_fip->index); 3674 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3675 /* 3676 * During period of FCF discovery, read the FCF 3677 * table record indexed by the event to update 3678 * FCF roundrobin failover eligible FCF bmask. 3679 */ 3680 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3681 LOG_DISCOVERY, 3682 "2779 Read FCF (x%x) for updating " 3683 "roundrobin FCF failover bmask\n", 3684 acqe_fip->index); 3685 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3686 } 3687 3688 /* If the FCF discovery is in progress, do nothing. */ 3689 spin_lock_irq(&phba->hbalock); 3690 if (phba->hba_flag & FCF_TS_INPROG) { 3691 spin_unlock_irq(&phba->hbalock); 3692 break; 3693 } 3694 /* If fast FCF failover rescan event is pending, do nothing */ 3695 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3696 spin_unlock_irq(&phba->hbalock); 3697 break; 3698 } 3699 3700 /* If the FCF has been in discovered state, do nothing. */ 3701 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3702 spin_unlock_irq(&phba->hbalock); 3703 break; 3704 } 3705 spin_unlock_irq(&phba->hbalock); 3706 3707 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3708 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3709 "2770 Start FCF table scan per async FCF " 3710 "event, evt_tag:x%x, index:x%x\n", 3711 acqe_fip->event_tag, acqe_fip->index); 3712 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3713 LPFC_FCOE_FCF_GET_FIRST); 3714 if (rc) 3715 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3716 "2547 Issue FCF scan read FCF mailbox " 3717 "command failed (x%x)\n", rc); 3718 break; 3719 3720 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3721 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3722 "2548 FCF Table full count 0x%x tag 0x%x\n", 3723 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3724 acqe_fip->event_tag); 3725 break; 3726 3727 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3728 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 3729 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3730 "2549 FCF (x%x) disconnected from network, " 3731 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3732 /* 3733 * If we are in the middle of FCF failover process, clear 3734 * the corresponding FCF bit in the roundrobin bitmap. 3735 */ 3736 spin_lock_irq(&phba->hbalock); 3737 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3738 spin_unlock_irq(&phba->hbalock); 3739 /* Update FLOGI FCF failover eligible FCF bmask */ 3740 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3741 break; 3742 } 3743 spin_unlock_irq(&phba->hbalock); 3744 3745 /* If the event is not for currently used fcf do nothing */ 3746 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3747 break; 3748 3749 /* 3750 * Otherwise, request the port to rediscover the entire FCF 3751 * table for a fast recovery from case that the current FCF 3752 * is no longer valid as we are not in the middle of FCF 3753 * failover process already. 3754 */ 3755 spin_lock_irq(&phba->hbalock); 3756 /* Mark the fast failover process in progress */ 3757 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 3758 spin_unlock_irq(&phba->hbalock); 3759 3760 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3761 "2771 Start FCF fast failover process due to " 3762 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 3763 "\n", acqe_fip->event_tag, acqe_fip->index); 3764 rc = lpfc_sli4_redisc_fcf_table(phba); 3765 if (rc) { 3766 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3767 LOG_DISCOVERY, 3768 "2772 Issue FCF rediscover mabilbox " 3769 "command failed, fail through to FCF " 3770 "dead event\n"); 3771 spin_lock_irq(&phba->hbalock); 3772 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 3773 spin_unlock_irq(&phba->hbalock); 3774 /* 3775 * Last resort will fail over by treating this 3776 * as a link down to FCF registration. 3777 */ 3778 lpfc_sli4_fcf_dead_failthrough(phba); 3779 } else { 3780 /* Reset FCF roundrobin bmask for new discovery */ 3781 lpfc_sli4_clear_fcf_rr_bmask(phba); 3782 /* 3783 * Handling fast FCF failover to a DEAD FCF event is 3784 * considered equalivant to receiving CVL to all vports. 3785 */ 3786 lpfc_sli4_perform_all_vport_cvl(phba); 3787 } 3788 break; 3789 case LPFC_FIP_EVENT_TYPE_CVL: 3790 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 3791 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3792 "2718 Clear Virtual Link Received for VPI 0x%x" 3793 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 3794 3795 vport = lpfc_find_vport_by_vpid(phba, 3796 acqe_fip->index); 3797 ndlp = lpfc_sli4_perform_vport_cvl(vport); 3798 if (!ndlp) 3799 break; 3800 active_vlink_present = 0; 3801 3802 vports = lpfc_create_vport_work_array(phba); 3803 if (vports) { 3804 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 3805 i++) { 3806 if ((!(vports[i]->fc_flag & 3807 FC_VPORT_CVL_RCVD)) && 3808 (vports[i]->port_state > LPFC_FDISC)) { 3809 active_vlink_present = 1; 3810 break; 3811 } 3812 } 3813 lpfc_destroy_vport_work_array(phba, vports); 3814 } 3815 3816 if (active_vlink_present) { 3817 /* 3818 * If there are other active VLinks present, 3819 * re-instantiate the Vlink using FDISC. 3820 */ 3821 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 3822 shost = lpfc_shost_from_vport(vport); 3823 spin_lock_irq(shost->host_lock); 3824 ndlp->nlp_flag |= NLP_DELAY_TMO; 3825 spin_unlock_irq(shost->host_lock); 3826 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 3827 vport->port_state = LPFC_FDISC; 3828 } else { 3829 /* 3830 * Otherwise, we request port to rediscover 3831 * the entire FCF table for a fast recovery 3832 * from possible case that the current FCF 3833 * is no longer valid if we are not already 3834 * in the FCF failover process. 3835 */ 3836 spin_lock_irq(&phba->hbalock); 3837 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3838 spin_unlock_irq(&phba->hbalock); 3839 break; 3840 } 3841 /* Mark the fast failover process in progress */ 3842 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 3843 spin_unlock_irq(&phba->hbalock); 3844 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3845 LOG_DISCOVERY, 3846 "2773 Start FCF failover per CVL, " 3847 "evt_tag:x%x\n", acqe_fip->event_tag); 3848 rc = lpfc_sli4_redisc_fcf_table(phba); 3849 if (rc) { 3850 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3851 LOG_DISCOVERY, 3852 "2774 Issue FCF rediscover " 3853 "mabilbox command failed, " 3854 "through to CVL event\n"); 3855 spin_lock_irq(&phba->hbalock); 3856 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 3857 spin_unlock_irq(&phba->hbalock); 3858 /* 3859 * Last resort will be re-try on the 3860 * the current registered FCF entry. 3861 */ 3862 lpfc_retry_pport_discovery(phba); 3863 } else 3864 /* 3865 * Reset FCF roundrobin bmask for new 3866 * discovery. 3867 */ 3868 lpfc_sli4_clear_fcf_rr_bmask(phba); 3869 } 3870 break; 3871 default: 3872 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3873 "0288 Unknown FCoE event type 0x%x event tag " 3874 "0x%x\n", event_type, acqe_fip->event_tag); 3875 break; 3876 } 3877 } 3878 3879 /** 3880 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 3881 * @phba: pointer to lpfc hba data structure. 3882 * @acqe_link: pointer to the async dcbx completion queue entry. 3883 * 3884 * This routine is to handle the SLI4 asynchronous dcbx event. 3885 **/ 3886 static void 3887 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 3888 struct lpfc_acqe_dcbx *acqe_dcbx) 3889 { 3890 phba->fc_eventTag = acqe_dcbx->event_tag; 3891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3892 "0290 The SLI4 DCBX asynchronous event is not " 3893 "handled yet\n"); 3894 } 3895 3896 /** 3897 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 3898 * @phba: pointer to lpfc hba data structure. 3899 * @acqe_link: pointer to the async grp5 completion queue entry. 3900 * 3901 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 3902 * is an asynchronous notified of a logical link speed change. The Port 3903 * reports the logical link speed in units of 10Mbps. 3904 **/ 3905 static void 3906 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 3907 struct lpfc_acqe_grp5 *acqe_grp5) 3908 { 3909 uint16_t prev_ll_spd; 3910 3911 phba->fc_eventTag = acqe_grp5->event_tag; 3912 phba->fcoe_eventtag = acqe_grp5->event_tag; 3913 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 3914 phba->sli4_hba.link_state.logical_speed = 3915 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 3916 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3917 "2789 GRP5 Async Event: Updating logical link speed " 3918 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 3919 (phba->sli4_hba.link_state.logical_speed*10)); 3920 } 3921 3922 /** 3923 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 3924 * @phba: pointer to lpfc hba data structure. 3925 * 3926 * This routine is invoked by the worker thread to process all the pending 3927 * SLI4 asynchronous events. 3928 **/ 3929 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 3930 { 3931 struct lpfc_cq_event *cq_event; 3932 3933 /* First, declare the async event has been handled */ 3934 spin_lock_irq(&phba->hbalock); 3935 phba->hba_flag &= ~ASYNC_EVENT; 3936 spin_unlock_irq(&phba->hbalock); 3937 /* Now, handle all the async events */ 3938 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 3939 /* Get the first event from the head of the event queue */ 3940 spin_lock_irq(&phba->hbalock); 3941 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 3942 cq_event, struct lpfc_cq_event, list); 3943 spin_unlock_irq(&phba->hbalock); 3944 /* Process the asynchronous event */ 3945 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 3946 case LPFC_TRAILER_CODE_LINK: 3947 lpfc_sli4_async_link_evt(phba, 3948 &cq_event->cqe.acqe_link); 3949 break; 3950 case LPFC_TRAILER_CODE_FCOE: 3951 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 3952 break; 3953 case LPFC_TRAILER_CODE_DCBX: 3954 lpfc_sli4_async_dcbx_evt(phba, 3955 &cq_event->cqe.acqe_dcbx); 3956 break; 3957 case LPFC_TRAILER_CODE_GRP5: 3958 lpfc_sli4_async_grp5_evt(phba, 3959 &cq_event->cqe.acqe_grp5); 3960 break; 3961 case LPFC_TRAILER_CODE_FC: 3962 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 3963 break; 3964 case LPFC_TRAILER_CODE_SLI: 3965 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 3966 break; 3967 default: 3968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3969 "1804 Invalid asynchrous event code: " 3970 "x%x\n", bf_get(lpfc_trailer_code, 3971 &cq_event->cqe.mcqe_cmpl)); 3972 break; 3973 } 3974 /* Free the completion event processed to the free pool */ 3975 lpfc_sli4_cq_event_release(phba, cq_event); 3976 } 3977 } 3978 3979 /** 3980 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 3981 * @phba: pointer to lpfc hba data structure. 3982 * 3983 * This routine is invoked by the worker thread to process FCF table 3984 * rediscovery pending completion event. 3985 **/ 3986 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 3987 { 3988 int rc; 3989 3990 spin_lock_irq(&phba->hbalock); 3991 /* Clear FCF rediscovery timeout event */ 3992 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 3993 /* Clear driver fast failover FCF record flag */ 3994 phba->fcf.failover_rec.flag = 0; 3995 /* Set state for FCF fast failover */ 3996 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 3997 spin_unlock_irq(&phba->hbalock); 3998 3999 /* Scan FCF table from the first entry to re-discover SAN */ 4000 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4001 "2777 Start post-quiescent FCF table scan\n"); 4002 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4003 if (rc) 4004 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4005 "2747 Issue FCF scan read FCF mailbox " 4006 "command failed 0x%x\n", rc); 4007 } 4008 4009 /** 4010 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4011 * @phba: pointer to lpfc hba data structure. 4012 * @dev_grp: The HBA PCI-Device group number. 4013 * 4014 * This routine is invoked to set up the per HBA PCI-Device group function 4015 * API jump table entries. 4016 * 4017 * Return: 0 if success, otherwise -ENODEV 4018 **/ 4019 int 4020 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4021 { 4022 int rc; 4023 4024 /* Set up lpfc PCI-device group */ 4025 phba->pci_dev_grp = dev_grp; 4026 4027 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4028 if (dev_grp == LPFC_PCI_DEV_OC) 4029 phba->sli_rev = LPFC_SLI_REV4; 4030 4031 /* Set up device INIT API function jump table */ 4032 rc = lpfc_init_api_table_setup(phba, dev_grp); 4033 if (rc) 4034 return -ENODEV; 4035 /* Set up SCSI API function jump table */ 4036 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4037 if (rc) 4038 return -ENODEV; 4039 /* Set up SLI API function jump table */ 4040 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4041 if (rc) 4042 return -ENODEV; 4043 /* Set up MBOX API function jump table */ 4044 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4045 if (rc) 4046 return -ENODEV; 4047 4048 return 0; 4049 } 4050 4051 /** 4052 * lpfc_log_intr_mode - Log the active interrupt mode 4053 * @phba: pointer to lpfc hba data structure. 4054 * @intr_mode: active interrupt mode adopted. 4055 * 4056 * This routine it invoked to log the currently used active interrupt mode 4057 * to the device. 4058 **/ 4059 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4060 { 4061 switch (intr_mode) { 4062 case 0: 4063 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4064 "0470 Enable INTx interrupt mode.\n"); 4065 break; 4066 case 1: 4067 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4068 "0481 Enabled MSI interrupt mode.\n"); 4069 break; 4070 case 2: 4071 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4072 "0480 Enabled MSI-X interrupt mode.\n"); 4073 break; 4074 default: 4075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4076 "0482 Illegal interrupt mode.\n"); 4077 break; 4078 } 4079 return; 4080 } 4081 4082 /** 4083 * lpfc_enable_pci_dev - Enable a generic PCI device. 4084 * @phba: pointer to lpfc hba data structure. 4085 * 4086 * This routine is invoked to enable the PCI device that is common to all 4087 * PCI devices. 4088 * 4089 * Return codes 4090 * 0 - successful 4091 * other values - error 4092 **/ 4093 static int 4094 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4095 { 4096 struct pci_dev *pdev; 4097 int bars = 0; 4098 4099 /* Obtain PCI device reference */ 4100 if (!phba->pcidev) 4101 goto out_error; 4102 else 4103 pdev = phba->pcidev; 4104 /* Select PCI BARs */ 4105 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4106 /* Enable PCI device */ 4107 if (pci_enable_device_mem(pdev)) 4108 goto out_error; 4109 /* Request PCI resource for the device */ 4110 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4111 goto out_disable_device; 4112 /* Set up device as PCI master and save state for EEH */ 4113 pci_set_master(pdev); 4114 pci_try_set_mwi(pdev); 4115 pci_save_state(pdev); 4116 4117 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4118 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4119 pdev->needs_freset = 1; 4120 4121 return 0; 4122 4123 out_disable_device: 4124 pci_disable_device(pdev); 4125 out_error: 4126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4127 "1401 Failed to enable pci device, bars:x%x\n", bars); 4128 return -ENODEV; 4129 } 4130 4131 /** 4132 * lpfc_disable_pci_dev - Disable a generic PCI device. 4133 * @phba: pointer to lpfc hba data structure. 4134 * 4135 * This routine is invoked to disable the PCI device that is common to all 4136 * PCI devices. 4137 **/ 4138 static void 4139 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4140 { 4141 struct pci_dev *pdev; 4142 int bars; 4143 4144 /* Obtain PCI device reference */ 4145 if (!phba->pcidev) 4146 return; 4147 else 4148 pdev = phba->pcidev; 4149 /* Select PCI BARs */ 4150 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4151 /* Release PCI resource and disable PCI device */ 4152 pci_release_selected_regions(pdev, bars); 4153 pci_disable_device(pdev); 4154 /* Null out PCI private reference to driver */ 4155 pci_set_drvdata(pdev, NULL); 4156 4157 return; 4158 } 4159 4160 /** 4161 * lpfc_reset_hba - Reset a hba 4162 * @phba: pointer to lpfc hba data structure. 4163 * 4164 * This routine is invoked to reset a hba device. It brings the HBA 4165 * offline, performs a board restart, and then brings the board back 4166 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4167 * on outstanding mailbox commands. 4168 **/ 4169 void 4170 lpfc_reset_hba(struct lpfc_hba *phba) 4171 { 4172 /* If resets are disabled then set error state and return. */ 4173 if (!phba->cfg_enable_hba_reset) { 4174 phba->link_state = LPFC_HBA_ERROR; 4175 return; 4176 } 4177 lpfc_offline_prep(phba); 4178 lpfc_offline(phba); 4179 lpfc_sli_brdrestart(phba); 4180 lpfc_online(phba); 4181 lpfc_unblock_mgmt_io(phba); 4182 } 4183 4184 /** 4185 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4186 * @phba: pointer to lpfc hba data structure. 4187 * 4188 * This function enables the PCI SR-IOV virtual functions to a physical 4189 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4190 * enable the number of virtual functions to the physical function. As 4191 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4192 * API call does not considered as an error condition for most of the device. 4193 **/ 4194 uint16_t 4195 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4196 { 4197 struct pci_dev *pdev = phba->pcidev; 4198 uint16_t nr_virtfn; 4199 int pos; 4200 4201 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4202 if (pos == 0) 4203 return 0; 4204 4205 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4206 return nr_virtfn; 4207 } 4208 4209 /** 4210 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4211 * @phba: pointer to lpfc hba data structure. 4212 * @nr_vfn: number of virtual functions to be enabled. 4213 * 4214 * This function enables the PCI SR-IOV virtual functions to a physical 4215 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4216 * enable the number of virtual functions to the physical function. As 4217 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4218 * API call does not considered as an error condition for most of the device. 4219 **/ 4220 int 4221 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4222 { 4223 struct pci_dev *pdev = phba->pcidev; 4224 uint16_t max_nr_vfn; 4225 int rc; 4226 4227 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4228 if (nr_vfn > max_nr_vfn) { 4229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4230 "3057 Requested vfs (%d) greater than " 4231 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4232 return -EINVAL; 4233 } 4234 4235 rc = pci_enable_sriov(pdev, nr_vfn); 4236 if (rc) { 4237 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4238 "2806 Failed to enable sriov on this device " 4239 "with vfn number nr_vf:%d, rc:%d\n", 4240 nr_vfn, rc); 4241 } else 4242 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4243 "2807 Successful enable sriov on this device " 4244 "with vfn number nr_vf:%d\n", nr_vfn); 4245 return rc; 4246 } 4247 4248 /** 4249 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 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-3 HBA device it attached to. 4254 * 4255 * Return codes 4256 * 0 - successful 4257 * other values - error 4258 **/ 4259 static int 4260 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4261 { 4262 struct lpfc_sli *psli; 4263 int rc; 4264 4265 /* 4266 * Initialize timers used by driver 4267 */ 4268 4269 /* Heartbeat timer */ 4270 init_timer(&phba->hb_tmofunc); 4271 phba->hb_tmofunc.function = lpfc_hb_timeout; 4272 phba->hb_tmofunc.data = (unsigned long)phba; 4273 4274 psli = &phba->sli; 4275 /* MBOX heartbeat timer */ 4276 init_timer(&psli->mbox_tmo); 4277 psli->mbox_tmo.function = lpfc_mbox_timeout; 4278 psli->mbox_tmo.data = (unsigned long) phba; 4279 /* FCP polling mode timer */ 4280 init_timer(&phba->fcp_poll_timer); 4281 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4282 phba->fcp_poll_timer.data = (unsigned long) phba; 4283 /* Fabric block timer */ 4284 init_timer(&phba->fabric_block_timer); 4285 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4286 phba->fabric_block_timer.data = (unsigned long) phba; 4287 /* EA polling mode timer */ 4288 init_timer(&phba->eratt_poll); 4289 phba->eratt_poll.function = lpfc_poll_eratt; 4290 phba->eratt_poll.data = (unsigned long) phba; 4291 4292 /* Host attention work mask setup */ 4293 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4294 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4295 4296 /* Get all the module params for configuring this host */ 4297 lpfc_get_cfgparam(phba); 4298 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4299 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4300 /* check for menlo minimum sg count */ 4301 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4302 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4303 } 4304 4305 /* 4306 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4307 * used to create the sg_dma_buf_pool must be dynamically calculated. 4308 * 2 segments are added since the IOCB needs a command and response bde. 4309 */ 4310 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4311 sizeof(struct fcp_rsp) + 4312 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4313 4314 if (phba->cfg_enable_bg) { 4315 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4316 phba->cfg_sg_dma_buf_size += 4317 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4318 } 4319 4320 /* Also reinitialize the host templates with new values. */ 4321 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4322 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4323 4324 phba->max_vpi = LPFC_MAX_VPI; 4325 /* This will be set to correct value after config_port mbox */ 4326 phba->max_vports = 0; 4327 4328 /* 4329 * Initialize the SLI Layer to run with lpfc HBAs. 4330 */ 4331 lpfc_sli_setup(phba); 4332 lpfc_sli_queue_setup(phba); 4333 4334 /* Allocate device driver memory */ 4335 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4336 return -ENOMEM; 4337 4338 /* 4339 * Enable sr-iov virtual functions if supported and configured 4340 * through the module parameter. 4341 */ 4342 if (phba->cfg_sriov_nr_virtfn > 0) { 4343 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4344 phba->cfg_sriov_nr_virtfn); 4345 if (rc) { 4346 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4347 "2808 Requested number of SR-IOV " 4348 "virtual functions (%d) is not " 4349 "supported\n", 4350 phba->cfg_sriov_nr_virtfn); 4351 phba->cfg_sriov_nr_virtfn = 0; 4352 } 4353 } 4354 4355 return 0; 4356 } 4357 4358 /** 4359 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4360 * @phba: pointer to lpfc hba data structure. 4361 * 4362 * This routine is invoked to unset the driver internal resources set up 4363 * specific for supporting the SLI-3 HBA device it attached to. 4364 **/ 4365 static void 4366 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4367 { 4368 /* Free device driver memory allocated */ 4369 lpfc_mem_free_all(phba); 4370 4371 return; 4372 } 4373 4374 /** 4375 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4376 * @phba: pointer to lpfc hba data structure. 4377 * 4378 * This routine is invoked to set up the driver internal resources specific to 4379 * support the SLI-4 HBA device it attached to. 4380 * 4381 * Return codes 4382 * 0 - successful 4383 * other values - error 4384 **/ 4385 static int 4386 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4387 { 4388 struct lpfc_sli *psli; 4389 LPFC_MBOXQ_t *mboxq; 4390 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4391 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4392 struct lpfc_mqe *mqe; 4393 int longs, sli_family; 4394 int sges_per_segment; 4395 4396 /* Before proceed, wait for POST done and device ready */ 4397 rc = lpfc_sli4_post_status_check(phba); 4398 if (rc) 4399 return -ENODEV; 4400 4401 /* 4402 * Initialize timers used by driver 4403 */ 4404 4405 /* Heartbeat timer */ 4406 init_timer(&phba->hb_tmofunc); 4407 phba->hb_tmofunc.function = lpfc_hb_timeout; 4408 phba->hb_tmofunc.data = (unsigned long)phba; 4409 init_timer(&phba->rrq_tmr); 4410 phba->rrq_tmr.function = lpfc_rrq_timeout; 4411 phba->rrq_tmr.data = (unsigned long)phba; 4412 4413 psli = &phba->sli; 4414 /* MBOX heartbeat timer */ 4415 init_timer(&psli->mbox_tmo); 4416 psli->mbox_tmo.function = lpfc_mbox_timeout; 4417 psli->mbox_tmo.data = (unsigned long) phba; 4418 /* Fabric block timer */ 4419 init_timer(&phba->fabric_block_timer); 4420 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4421 phba->fabric_block_timer.data = (unsigned long) phba; 4422 /* EA polling mode timer */ 4423 init_timer(&phba->eratt_poll); 4424 phba->eratt_poll.function = lpfc_poll_eratt; 4425 phba->eratt_poll.data = (unsigned long) phba; 4426 /* FCF rediscover timer */ 4427 init_timer(&phba->fcf.redisc_wait); 4428 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4429 phba->fcf.redisc_wait.data = (unsigned long)phba; 4430 4431 /* 4432 * Control structure for handling external multi-buffer mailbox 4433 * command pass-through. 4434 */ 4435 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4436 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4437 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4438 4439 /* 4440 * We need to do a READ_CONFIG mailbox command here before 4441 * calling lpfc_get_cfgparam. For VFs this will report the 4442 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4443 * All of the resources allocated 4444 * for this Port are tied to these values. 4445 */ 4446 /* Get all the module params for configuring this host */ 4447 lpfc_get_cfgparam(phba); 4448 phba->max_vpi = LPFC_MAX_VPI; 4449 /* This will be set to correct value after the read_config mbox */ 4450 phba->max_vports = 0; 4451 4452 /* Program the default value of vlan_id and fc_map */ 4453 phba->valid_vlan = 0; 4454 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4455 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4456 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4457 4458 /* With BlockGuard we can have multiple SGEs per Data Segemnt */ 4459 sges_per_segment = 1; 4460 if (phba->cfg_enable_bg) 4461 sges_per_segment = 2; 4462 4463 /* 4464 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4465 * used to create the sg_dma_buf_pool must be dynamically calculated. 4466 * 2 segments are added since the IOCB needs a command and response bde. 4467 * To insure that the scsi sgl does not cross a 4k page boundary only 4468 * sgl sizes of must be a power of 2. 4469 */ 4470 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4471 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * 4472 sizeof(struct sli4_sge))); 4473 4474 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4475 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4476 switch (sli_family) { 4477 case LPFC_SLI_INTF_FAMILY_BE2: 4478 case LPFC_SLI_INTF_FAMILY_BE3: 4479 /* There is a single hint for BE - 2 pages per BPL. */ 4480 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4481 LPFC_SLI_INTF_SLI_HINT1_1) 4482 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4483 break; 4484 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4485 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4486 default: 4487 break; 4488 } 4489 4490 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4491 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4492 dma_buf_size = dma_buf_size << 1) 4493 ; 4494 if (dma_buf_size == max_buf_size) 4495 phba->cfg_sg_seg_cnt = (dma_buf_size - 4496 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4497 (2 * sizeof(struct sli4_sge))) / 4498 sizeof(struct sli4_sge); 4499 phba->cfg_sg_dma_buf_size = dma_buf_size; 4500 4501 /* Initialize buffer queue management fields */ 4502 hbq_count = lpfc_sli_hbq_count(); 4503 for (i = 0; i < hbq_count; ++i) 4504 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4505 INIT_LIST_HEAD(&phba->rb_pend_list); 4506 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4507 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4508 4509 /* 4510 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4511 */ 4512 /* Initialize the Abort scsi buffer list used by driver */ 4513 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4514 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4515 /* This abort list used by worker thread */ 4516 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4517 4518 /* 4519 * Initialize driver internal slow-path work queues 4520 */ 4521 4522 /* Driver internel slow-path CQ Event pool */ 4523 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4524 /* Response IOCB work queue list */ 4525 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4526 /* Asynchronous event CQ Event work queue list */ 4527 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4528 /* Fast-path XRI aborted CQ Event work queue list */ 4529 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4530 /* Slow-path XRI aborted CQ Event work queue list */ 4531 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4532 /* Receive queue CQ Event work queue list */ 4533 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4534 4535 /* Initialize extent block lists. */ 4536 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4537 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4538 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4539 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4540 4541 /* Initialize the driver internal SLI layer lists. */ 4542 lpfc_sli_setup(phba); 4543 lpfc_sli_queue_setup(phba); 4544 4545 /* Allocate device driver memory */ 4546 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4547 if (rc) 4548 return -ENOMEM; 4549 4550 /* IF Type 2 ports get initialized now. */ 4551 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4552 LPFC_SLI_INTF_IF_TYPE_2) { 4553 rc = lpfc_pci_function_reset(phba); 4554 if (unlikely(rc)) 4555 return -ENODEV; 4556 } 4557 4558 /* Create the bootstrap mailbox command */ 4559 rc = lpfc_create_bootstrap_mbox(phba); 4560 if (unlikely(rc)) 4561 goto out_free_mem; 4562 4563 /* Set up the host's endian order with the device. */ 4564 rc = lpfc_setup_endian_order(phba); 4565 if (unlikely(rc)) 4566 goto out_free_bsmbx; 4567 4568 /* Set up the hba's configuration parameters. */ 4569 rc = lpfc_sli4_read_config(phba); 4570 if (unlikely(rc)) 4571 goto out_free_bsmbx; 4572 4573 /* IF Type 0 ports get initialized now. */ 4574 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4575 LPFC_SLI_INTF_IF_TYPE_0) { 4576 rc = lpfc_pci_function_reset(phba); 4577 if (unlikely(rc)) 4578 goto out_free_bsmbx; 4579 } 4580 4581 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4582 GFP_KERNEL); 4583 if (!mboxq) { 4584 rc = -ENOMEM; 4585 goto out_free_bsmbx; 4586 } 4587 4588 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4589 lpfc_supported_pages(mboxq); 4590 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4591 if (!rc) { 4592 mqe = &mboxq->u.mqe; 4593 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4594 LPFC_MAX_SUPPORTED_PAGES); 4595 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4596 switch (pn_page[i]) { 4597 case LPFC_SLI4_PARAMETERS: 4598 phba->sli4_hba.pc_sli4_params.supported = 1; 4599 break; 4600 default: 4601 break; 4602 } 4603 } 4604 /* Read the port's SLI4 Parameters capabilities if supported. */ 4605 if (phba->sli4_hba.pc_sli4_params.supported) 4606 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4607 if (rc) { 4608 mempool_free(mboxq, phba->mbox_mem_pool); 4609 rc = -EIO; 4610 goto out_free_bsmbx; 4611 } 4612 } 4613 /* 4614 * Get sli4 parameters that override parameters from Port capabilities. 4615 * If this call fails, it isn't critical unless the SLI4 parameters come 4616 * back in conflict. 4617 */ 4618 rc = lpfc_get_sli4_parameters(phba, mboxq); 4619 if (rc) { 4620 if (phba->sli4_hba.extents_in_use && 4621 phba->sli4_hba.rpi_hdrs_in_use) { 4622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4623 "2999 Unsupported SLI4 Parameters " 4624 "Extents and RPI headers enabled.\n"); 4625 goto out_free_bsmbx; 4626 } 4627 } 4628 mempool_free(mboxq, phba->mbox_mem_pool); 4629 /* Verify all the SLI4 queues */ 4630 rc = lpfc_sli4_queue_verify(phba); 4631 if (rc) 4632 goto out_free_bsmbx; 4633 4634 /* Create driver internal CQE event pool */ 4635 rc = lpfc_sli4_cq_event_pool_create(phba); 4636 if (rc) 4637 goto out_free_bsmbx; 4638 4639 /* Initialize and populate the iocb list per host */ 4640 rc = lpfc_init_sgl_list(phba); 4641 if (rc) { 4642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4643 "1400 Failed to initialize sgl list.\n"); 4644 goto out_destroy_cq_event_pool; 4645 } 4646 rc = lpfc_init_active_sgl_array(phba); 4647 if (rc) { 4648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4649 "1430 Failed to initialize sgl list.\n"); 4650 goto out_free_sgl_list; 4651 } 4652 rc = lpfc_sli4_init_rpi_hdrs(phba); 4653 if (rc) { 4654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4655 "1432 Failed to initialize rpi headers.\n"); 4656 goto out_free_active_sgl; 4657 } 4658 4659 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4660 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4661 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4662 GFP_KERNEL); 4663 if (!phba->fcf.fcf_rr_bmask) { 4664 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4665 "2759 Failed allocate memory for FCF round " 4666 "robin failover bmask\n"); 4667 rc = -ENOMEM; 4668 goto out_remove_rpi_hdrs; 4669 } 4670 4671 /* 4672 * The cfg_fcp_eq_count can be zero whenever there is exactly one 4673 * interrupt vector. This is not an error 4674 */ 4675 if (phba->cfg_fcp_eq_count) { 4676 phba->sli4_hba.fcp_eq_hdl = 4677 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4678 phba->cfg_fcp_eq_count), GFP_KERNEL); 4679 if (!phba->sli4_hba.fcp_eq_hdl) { 4680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4681 "2572 Failed allocate memory for " 4682 "fast-path per-EQ handle array\n"); 4683 rc = -ENOMEM; 4684 goto out_free_fcf_rr_bmask; 4685 } 4686 } 4687 4688 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4689 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4690 if (!phba->sli4_hba.msix_entries) { 4691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4692 "2573 Failed allocate memory for msi-x " 4693 "interrupt vector entries\n"); 4694 rc = -ENOMEM; 4695 goto out_free_fcp_eq_hdl; 4696 } 4697 4698 /* 4699 * Enable sr-iov virtual functions if supported and configured 4700 * through the module parameter. 4701 */ 4702 if (phba->cfg_sriov_nr_virtfn > 0) { 4703 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4704 phba->cfg_sriov_nr_virtfn); 4705 if (rc) { 4706 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4707 "3020 Requested number of SR-IOV " 4708 "virtual functions (%d) is not " 4709 "supported\n", 4710 phba->cfg_sriov_nr_virtfn); 4711 phba->cfg_sriov_nr_virtfn = 0; 4712 } 4713 } 4714 4715 return 0; 4716 4717 out_free_fcp_eq_hdl: 4718 kfree(phba->sli4_hba.fcp_eq_hdl); 4719 out_free_fcf_rr_bmask: 4720 kfree(phba->fcf.fcf_rr_bmask); 4721 out_remove_rpi_hdrs: 4722 lpfc_sli4_remove_rpi_hdrs(phba); 4723 out_free_active_sgl: 4724 lpfc_free_active_sgl(phba); 4725 out_free_sgl_list: 4726 lpfc_free_sgl_list(phba); 4727 out_destroy_cq_event_pool: 4728 lpfc_sli4_cq_event_pool_destroy(phba); 4729 out_free_bsmbx: 4730 lpfc_destroy_bootstrap_mbox(phba); 4731 out_free_mem: 4732 lpfc_mem_free(phba); 4733 return rc; 4734 } 4735 4736 /** 4737 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4738 * @phba: pointer to lpfc hba data structure. 4739 * 4740 * This routine is invoked to unset the driver internal resources set up 4741 * specific for supporting the SLI-4 HBA device it attached to. 4742 **/ 4743 static void 4744 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4745 { 4746 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4747 4748 /* Free memory allocated for msi-x interrupt vector entries */ 4749 kfree(phba->sli4_hba.msix_entries); 4750 4751 /* Free memory allocated for fast-path work queue handles */ 4752 kfree(phba->sli4_hba.fcp_eq_hdl); 4753 4754 /* Free the allocated rpi headers. */ 4755 lpfc_sli4_remove_rpi_hdrs(phba); 4756 lpfc_sli4_remove_rpis(phba); 4757 4758 /* Free eligible FCF index bmask */ 4759 kfree(phba->fcf.fcf_rr_bmask); 4760 4761 /* Free the ELS sgl list */ 4762 lpfc_free_active_sgl(phba); 4763 lpfc_free_sgl_list(phba); 4764 4765 /* Free the SCSI sgl management array */ 4766 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 4767 4768 /* Free the completion queue EQ event pool */ 4769 lpfc_sli4_cq_event_release_all(phba); 4770 lpfc_sli4_cq_event_pool_destroy(phba); 4771 4772 /* Release resource identifiers. */ 4773 lpfc_sli4_dealloc_resource_identifiers(phba); 4774 4775 /* Free the bsmbx region. */ 4776 lpfc_destroy_bootstrap_mbox(phba); 4777 4778 /* Free the SLI Layer memory with SLI4 HBAs */ 4779 lpfc_mem_free_all(phba); 4780 4781 /* Free the current connect table */ 4782 list_for_each_entry_safe(conn_entry, next_conn_entry, 4783 &phba->fcf_conn_rec_list, list) { 4784 list_del_init(&conn_entry->list); 4785 kfree(conn_entry); 4786 } 4787 4788 return; 4789 } 4790 4791 /** 4792 * lpfc_init_api_table_setup - Set up init api function jump table 4793 * @phba: The hba struct for which this call is being executed. 4794 * @dev_grp: The HBA PCI-Device group number. 4795 * 4796 * This routine sets up the device INIT interface API function jump table 4797 * in @phba struct. 4798 * 4799 * Returns: 0 - success, -ENODEV - failure. 4800 **/ 4801 int 4802 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4803 { 4804 phba->lpfc_hba_init_link = lpfc_hba_init_link; 4805 phba->lpfc_hba_down_link = lpfc_hba_down_link; 4806 phba->lpfc_selective_reset = lpfc_selective_reset; 4807 switch (dev_grp) { 4808 case LPFC_PCI_DEV_LP: 4809 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 4810 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 4811 phba->lpfc_stop_port = lpfc_stop_port_s3; 4812 break; 4813 case LPFC_PCI_DEV_OC: 4814 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 4815 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 4816 phba->lpfc_stop_port = lpfc_stop_port_s4; 4817 break; 4818 default: 4819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4820 "1431 Invalid HBA PCI-device group: 0x%x\n", 4821 dev_grp); 4822 return -ENODEV; 4823 break; 4824 } 4825 return 0; 4826 } 4827 4828 /** 4829 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 4830 * @phba: pointer to lpfc hba data structure. 4831 * 4832 * This routine is invoked to set up the driver internal resources before the 4833 * device specific resource setup to support the HBA device it attached to. 4834 * 4835 * Return codes 4836 * 0 - successful 4837 * other values - error 4838 **/ 4839 static int 4840 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 4841 { 4842 /* 4843 * Driver resources common to all SLI revisions 4844 */ 4845 atomic_set(&phba->fast_event_count, 0); 4846 spin_lock_init(&phba->hbalock); 4847 4848 /* Initialize ndlp management spinlock */ 4849 spin_lock_init(&phba->ndlp_lock); 4850 4851 INIT_LIST_HEAD(&phba->port_list); 4852 INIT_LIST_HEAD(&phba->work_list); 4853 init_waitqueue_head(&phba->wait_4_mlo_m_q); 4854 4855 /* Initialize the wait queue head for the kernel thread */ 4856 init_waitqueue_head(&phba->work_waitq); 4857 4858 /* Initialize the scsi buffer list used by driver for scsi IO */ 4859 spin_lock_init(&phba->scsi_buf_list_lock); 4860 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 4861 4862 /* Initialize the fabric iocb list */ 4863 INIT_LIST_HEAD(&phba->fabric_iocb_list); 4864 4865 /* Initialize list to save ELS buffers */ 4866 INIT_LIST_HEAD(&phba->elsbuf); 4867 4868 /* Initialize FCF connection rec list */ 4869 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 4870 4871 return 0; 4872 } 4873 4874 /** 4875 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 4876 * @phba: pointer to lpfc hba data structure. 4877 * 4878 * This routine is invoked to set up the driver internal resources after the 4879 * device specific resource setup to support the HBA device it attached to. 4880 * 4881 * Return codes 4882 * 0 - successful 4883 * other values - error 4884 **/ 4885 static int 4886 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 4887 { 4888 int error; 4889 4890 /* Startup the kernel thread for this host adapter. */ 4891 phba->worker_thread = kthread_run(lpfc_do_work, phba, 4892 "lpfc_worker_%d", phba->brd_no); 4893 if (IS_ERR(phba->worker_thread)) { 4894 error = PTR_ERR(phba->worker_thread); 4895 return error; 4896 } 4897 4898 return 0; 4899 } 4900 4901 /** 4902 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 4903 * @phba: pointer to lpfc hba data structure. 4904 * 4905 * This routine is invoked to unset the driver internal resources set up after 4906 * the device specific resource setup for supporting the HBA device it 4907 * attached to. 4908 **/ 4909 static void 4910 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 4911 { 4912 /* Stop kernel worker thread */ 4913 kthread_stop(phba->worker_thread); 4914 } 4915 4916 /** 4917 * lpfc_free_iocb_list - Free iocb list. 4918 * @phba: pointer to lpfc hba data structure. 4919 * 4920 * This routine is invoked to free the driver's IOCB list and memory. 4921 **/ 4922 static void 4923 lpfc_free_iocb_list(struct lpfc_hba *phba) 4924 { 4925 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 4926 4927 spin_lock_irq(&phba->hbalock); 4928 list_for_each_entry_safe(iocbq_entry, iocbq_next, 4929 &phba->lpfc_iocb_list, list) { 4930 list_del(&iocbq_entry->list); 4931 kfree(iocbq_entry); 4932 phba->total_iocbq_bufs--; 4933 } 4934 spin_unlock_irq(&phba->hbalock); 4935 4936 return; 4937 } 4938 4939 /** 4940 * lpfc_init_iocb_list - Allocate and initialize iocb list. 4941 * @phba: pointer to lpfc hba data structure. 4942 * 4943 * This routine is invoked to allocate and initizlize the driver's IOCB 4944 * list and set up the IOCB tag array accordingly. 4945 * 4946 * Return codes 4947 * 0 - successful 4948 * other values - error 4949 **/ 4950 static int 4951 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 4952 { 4953 struct lpfc_iocbq *iocbq_entry = NULL; 4954 uint16_t iotag; 4955 int i; 4956 4957 /* Initialize and populate the iocb list per host. */ 4958 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 4959 for (i = 0; i < iocb_count; i++) { 4960 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 4961 if (iocbq_entry == NULL) { 4962 printk(KERN_ERR "%s: only allocated %d iocbs of " 4963 "expected %d count. Unloading driver.\n", 4964 __func__, i, LPFC_IOCB_LIST_CNT); 4965 goto out_free_iocbq; 4966 } 4967 4968 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 4969 if (iotag == 0) { 4970 kfree(iocbq_entry); 4971 printk(KERN_ERR "%s: failed to allocate IOTAG. " 4972 "Unloading driver.\n", __func__); 4973 goto out_free_iocbq; 4974 } 4975 iocbq_entry->sli4_lxritag = NO_XRI; 4976 iocbq_entry->sli4_xritag = NO_XRI; 4977 4978 spin_lock_irq(&phba->hbalock); 4979 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 4980 phba->total_iocbq_bufs++; 4981 spin_unlock_irq(&phba->hbalock); 4982 } 4983 4984 return 0; 4985 4986 out_free_iocbq: 4987 lpfc_free_iocb_list(phba); 4988 4989 return -ENOMEM; 4990 } 4991 4992 /** 4993 * lpfc_free_sgl_list - Free sgl list. 4994 * @phba: pointer to lpfc hba data structure. 4995 * 4996 * This routine is invoked to free the driver's sgl list and memory. 4997 **/ 4998 static void 4999 lpfc_free_sgl_list(struct lpfc_hba *phba) 5000 { 5001 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5002 LIST_HEAD(sglq_list); 5003 5004 spin_lock_irq(&phba->hbalock); 5005 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5006 spin_unlock_irq(&phba->hbalock); 5007 5008 list_for_each_entry_safe(sglq_entry, sglq_next, 5009 &sglq_list, list) { 5010 list_del(&sglq_entry->list); 5011 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5012 kfree(sglq_entry); 5013 phba->sli4_hba.total_sglq_bufs--; 5014 } 5015 kfree(phba->sli4_hba.lpfc_els_sgl_array); 5016 } 5017 5018 /** 5019 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5020 * @phba: pointer to lpfc hba data structure. 5021 * 5022 * This routine is invoked to allocate the driver's active sgl memory. 5023 * This array will hold the sglq_entry's for active IOs. 5024 **/ 5025 static int 5026 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5027 { 5028 int size; 5029 size = sizeof(struct lpfc_sglq *); 5030 size *= phba->sli4_hba.max_cfg_param.max_xri; 5031 5032 phba->sli4_hba.lpfc_sglq_active_list = 5033 kzalloc(size, GFP_KERNEL); 5034 if (!phba->sli4_hba.lpfc_sglq_active_list) 5035 return -ENOMEM; 5036 return 0; 5037 } 5038 5039 /** 5040 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5041 * @phba: pointer to lpfc hba data structure. 5042 * 5043 * This routine is invoked to walk through the array of active sglq entries 5044 * and free all of the resources. 5045 * This is just a place holder for now. 5046 **/ 5047 static void 5048 lpfc_free_active_sgl(struct lpfc_hba *phba) 5049 { 5050 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5051 } 5052 5053 /** 5054 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5055 * @phba: pointer to lpfc hba data structure. 5056 * 5057 * This routine is invoked to allocate and initizlize the driver's sgl 5058 * list and set up the sgl xritag tag array accordingly. 5059 * 5060 * Return codes 5061 * 0 - successful 5062 * other values - error 5063 **/ 5064 static int 5065 lpfc_init_sgl_list(struct lpfc_hba *phba) 5066 { 5067 struct lpfc_sglq *sglq_entry = NULL; 5068 int i; 5069 int els_xri_cnt; 5070 5071 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 5072 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5073 "2400 ELS XRI count %d.\n", 5074 els_xri_cnt); 5075 /* Initialize and populate the sglq list per host/VF. */ 5076 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5077 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5078 5079 /* Sanity check on XRI management */ 5080 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) { 5081 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5082 "2562 No room left for SCSI XRI allocation: " 5083 "max_xri=%d, els_xri=%d\n", 5084 phba->sli4_hba.max_cfg_param.max_xri, 5085 els_xri_cnt); 5086 return -ENOMEM; 5087 } 5088 5089 /* Allocate memory for the ELS XRI management array */ 5090 phba->sli4_hba.lpfc_els_sgl_array = 5091 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt), 5092 GFP_KERNEL); 5093 5094 if (!phba->sli4_hba.lpfc_els_sgl_array) { 5095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5096 "2401 Failed to allocate memory for ELS " 5097 "XRI management array of size %d.\n", 5098 els_xri_cnt); 5099 return -ENOMEM; 5100 } 5101 5102 /* Keep the SCSI XRI into the XRI management array */ 5103 phba->sli4_hba.scsi_xri_max = 5104 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 5105 phba->sli4_hba.scsi_xri_cnt = 0; 5106 phba->sli4_hba.lpfc_scsi_psb_array = 5107 kzalloc((sizeof(struct lpfc_scsi_buf *) * 5108 phba->sli4_hba.scsi_xri_max), GFP_KERNEL); 5109 5110 if (!phba->sli4_hba.lpfc_scsi_psb_array) { 5111 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5112 "2563 Failed to allocate memory for SCSI " 5113 "XRI management array of size %d.\n", 5114 phba->sli4_hba.scsi_xri_max); 5115 kfree(phba->sli4_hba.lpfc_els_sgl_array); 5116 return -ENOMEM; 5117 } 5118 5119 for (i = 0; i < els_xri_cnt; i++) { 5120 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL); 5121 if (sglq_entry == NULL) { 5122 printk(KERN_ERR "%s: only allocated %d sgls of " 5123 "expected %d count. Unloading driver.\n", 5124 __func__, i, els_xri_cnt); 5125 goto out_free_mem; 5126 } 5127 5128 sglq_entry->buff_type = GEN_BUFF_TYPE; 5129 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys); 5130 if (sglq_entry->virt == NULL) { 5131 kfree(sglq_entry); 5132 printk(KERN_ERR "%s: failed to allocate mbuf.\n" 5133 "Unloading driver.\n", __func__); 5134 goto out_free_mem; 5135 } 5136 sglq_entry->sgl = sglq_entry->virt; 5137 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 5138 5139 /* The list order is used by later block SGL registraton */ 5140 spin_lock_irq(&phba->hbalock); 5141 sglq_entry->state = SGL_FREED; 5142 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list); 5143 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry; 5144 phba->sli4_hba.total_sglq_bufs++; 5145 spin_unlock_irq(&phba->hbalock); 5146 } 5147 return 0; 5148 5149 out_free_mem: 5150 kfree(phba->sli4_hba.lpfc_scsi_psb_array); 5151 lpfc_free_sgl_list(phba); 5152 return -ENOMEM; 5153 } 5154 5155 /** 5156 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5157 * @phba: pointer to lpfc hba data structure. 5158 * 5159 * This routine is invoked to post rpi header templates to the 5160 * port for those SLI4 ports that do not support extents. This routine 5161 * posts a PAGE_SIZE memory region to the port to hold up to 5162 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5163 * and should be called only when interrupts are disabled. 5164 * 5165 * Return codes 5166 * 0 - successful 5167 * -ERROR - otherwise. 5168 **/ 5169 int 5170 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5171 { 5172 int rc = 0; 5173 struct lpfc_rpi_hdr *rpi_hdr; 5174 5175 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5176 if (!phba->sli4_hba.rpi_hdrs_in_use) 5177 return rc; 5178 if (phba->sli4_hba.extents_in_use) 5179 return -EIO; 5180 5181 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5182 if (!rpi_hdr) { 5183 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5184 "0391 Error during rpi post operation\n"); 5185 lpfc_sli4_remove_rpis(phba); 5186 rc = -ENODEV; 5187 } 5188 5189 return rc; 5190 } 5191 5192 /** 5193 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5194 * @phba: pointer to lpfc hba data structure. 5195 * 5196 * This routine is invoked to allocate a single 4KB memory region to 5197 * support rpis and stores them in the phba. This single region 5198 * provides support for up to 64 rpis. The region is used globally 5199 * by the device. 5200 * 5201 * Returns: 5202 * A valid rpi hdr on success. 5203 * A NULL pointer on any failure. 5204 **/ 5205 struct lpfc_rpi_hdr * 5206 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5207 { 5208 uint16_t rpi_limit, curr_rpi_range; 5209 struct lpfc_dmabuf *dmabuf; 5210 struct lpfc_rpi_hdr *rpi_hdr; 5211 uint32_t rpi_count; 5212 5213 /* 5214 * If the SLI4 port supports extents, posting the rpi header isn't 5215 * required. Set the expected maximum count and let the actual value 5216 * get set when extents are fully allocated. 5217 */ 5218 if (!phba->sli4_hba.rpi_hdrs_in_use) 5219 return NULL; 5220 if (phba->sli4_hba.extents_in_use) 5221 return NULL; 5222 5223 /* The limit on the logical index is just the max_rpi count. */ 5224 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5225 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5226 5227 spin_lock_irq(&phba->hbalock); 5228 /* 5229 * Establish the starting RPI in this header block. The starting 5230 * rpi is normalized to a zero base because the physical rpi is 5231 * port based. 5232 */ 5233 curr_rpi_range = phba->sli4_hba.next_rpi; 5234 spin_unlock_irq(&phba->hbalock); 5235 5236 /* 5237 * The port has a limited number of rpis. The increment here 5238 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5239 * and to allow the full max_rpi range per port. 5240 */ 5241 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5242 rpi_count = rpi_limit - curr_rpi_range; 5243 else 5244 rpi_count = LPFC_RPI_HDR_COUNT; 5245 5246 if (!rpi_count) 5247 return NULL; 5248 /* 5249 * First allocate the protocol header region for the port. The 5250 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5251 */ 5252 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5253 if (!dmabuf) 5254 return NULL; 5255 5256 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5257 LPFC_HDR_TEMPLATE_SIZE, 5258 &dmabuf->phys, 5259 GFP_KERNEL); 5260 if (!dmabuf->virt) { 5261 rpi_hdr = NULL; 5262 goto err_free_dmabuf; 5263 } 5264 5265 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5266 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5267 rpi_hdr = NULL; 5268 goto err_free_coherent; 5269 } 5270 5271 /* Save the rpi header data for cleanup later. */ 5272 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5273 if (!rpi_hdr) 5274 goto err_free_coherent; 5275 5276 rpi_hdr->dmabuf = dmabuf; 5277 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5278 rpi_hdr->page_count = 1; 5279 spin_lock_irq(&phba->hbalock); 5280 5281 /* The rpi_hdr stores the logical index only. */ 5282 rpi_hdr->start_rpi = curr_rpi_range; 5283 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5284 5285 /* 5286 * The next_rpi stores the next logical module-64 rpi value used 5287 * to post physical rpis in subsequent rpi postings. 5288 */ 5289 phba->sli4_hba.next_rpi += rpi_count; 5290 spin_unlock_irq(&phba->hbalock); 5291 return rpi_hdr; 5292 5293 err_free_coherent: 5294 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5295 dmabuf->virt, dmabuf->phys); 5296 err_free_dmabuf: 5297 kfree(dmabuf); 5298 return NULL; 5299 } 5300 5301 /** 5302 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5303 * @phba: pointer to lpfc hba data structure. 5304 * 5305 * This routine is invoked to remove all memory resources allocated 5306 * to support rpis for SLI4 ports not supporting extents. This routine 5307 * presumes the caller has released all rpis consumed by fabric or port 5308 * logins and is prepared to have the header pages removed. 5309 **/ 5310 void 5311 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5312 { 5313 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5314 5315 if (!phba->sli4_hba.rpi_hdrs_in_use) 5316 goto exit; 5317 5318 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5319 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5320 list_del(&rpi_hdr->list); 5321 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5322 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5323 kfree(rpi_hdr->dmabuf); 5324 kfree(rpi_hdr); 5325 } 5326 exit: 5327 /* There are no rpis available to the port now. */ 5328 phba->sli4_hba.next_rpi = 0; 5329 } 5330 5331 /** 5332 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5333 * @pdev: pointer to pci device data structure. 5334 * 5335 * This routine is invoked to allocate the driver hba data structure for an 5336 * HBA device. If the allocation is successful, the phba reference to the 5337 * PCI device data structure is set. 5338 * 5339 * Return codes 5340 * pointer to @phba - successful 5341 * NULL - error 5342 **/ 5343 static struct lpfc_hba * 5344 lpfc_hba_alloc(struct pci_dev *pdev) 5345 { 5346 struct lpfc_hba *phba; 5347 5348 /* Allocate memory for HBA structure */ 5349 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5350 if (!phba) { 5351 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5352 return NULL; 5353 } 5354 5355 /* Set reference to PCI device in HBA structure */ 5356 phba->pcidev = pdev; 5357 5358 /* Assign an unused board number */ 5359 phba->brd_no = lpfc_get_instance(); 5360 if (phba->brd_no < 0) { 5361 kfree(phba); 5362 return NULL; 5363 } 5364 5365 spin_lock_init(&phba->ct_ev_lock); 5366 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5367 5368 return phba; 5369 } 5370 5371 /** 5372 * lpfc_hba_free - Free driver hba data structure with a device. 5373 * @phba: pointer to lpfc hba data structure. 5374 * 5375 * This routine is invoked to free the driver hba data structure with an 5376 * HBA device. 5377 **/ 5378 static void 5379 lpfc_hba_free(struct lpfc_hba *phba) 5380 { 5381 /* Release the driver assigned board number */ 5382 idr_remove(&lpfc_hba_index, phba->brd_no); 5383 5384 kfree(phba); 5385 return; 5386 } 5387 5388 /** 5389 * lpfc_create_shost - Create hba physical port with associated scsi host. 5390 * @phba: pointer to lpfc hba data structure. 5391 * 5392 * This routine is invoked to create HBA physical port and associate a SCSI 5393 * host with it. 5394 * 5395 * Return codes 5396 * 0 - successful 5397 * other values - error 5398 **/ 5399 static int 5400 lpfc_create_shost(struct lpfc_hba *phba) 5401 { 5402 struct lpfc_vport *vport; 5403 struct Scsi_Host *shost; 5404 5405 /* Initialize HBA FC structure */ 5406 phba->fc_edtov = FF_DEF_EDTOV; 5407 phba->fc_ratov = FF_DEF_RATOV; 5408 phba->fc_altov = FF_DEF_ALTOV; 5409 phba->fc_arbtov = FF_DEF_ARBTOV; 5410 5411 atomic_set(&phba->sdev_cnt, 0); 5412 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5413 if (!vport) 5414 return -ENODEV; 5415 5416 shost = lpfc_shost_from_vport(vport); 5417 phba->pport = vport; 5418 lpfc_debugfs_initialize(vport); 5419 /* Put reference to SCSI host to driver's device private data */ 5420 pci_set_drvdata(phba->pcidev, shost); 5421 5422 return 0; 5423 } 5424 5425 /** 5426 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5427 * @phba: pointer to lpfc hba data structure. 5428 * 5429 * This routine is invoked to destroy HBA physical port and the associated 5430 * SCSI host. 5431 **/ 5432 static void 5433 lpfc_destroy_shost(struct lpfc_hba *phba) 5434 { 5435 struct lpfc_vport *vport = phba->pport; 5436 5437 /* Destroy physical port that associated with the SCSI host */ 5438 destroy_port(vport); 5439 5440 return; 5441 } 5442 5443 /** 5444 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5445 * @phba: pointer to lpfc hba data structure. 5446 * @shost: the shost to be used to detect Block guard settings. 5447 * 5448 * This routine sets up the local Block guard protocol settings for @shost. 5449 * This routine also allocates memory for debugging bg buffers. 5450 **/ 5451 static void 5452 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5453 { 5454 int pagecnt = 10; 5455 if (lpfc_prot_mask && lpfc_prot_guard) { 5456 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5457 "1478 Registering BlockGuard with the " 5458 "SCSI layer\n"); 5459 scsi_host_set_prot(shost, lpfc_prot_mask); 5460 scsi_host_set_guard(shost, lpfc_prot_guard); 5461 } 5462 if (!_dump_buf_data) { 5463 while (pagecnt) { 5464 spin_lock_init(&_dump_buf_lock); 5465 _dump_buf_data = 5466 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5467 if (_dump_buf_data) { 5468 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5469 "9043 BLKGRD: allocated %d pages for " 5470 "_dump_buf_data at 0x%p\n", 5471 (1 << pagecnt), _dump_buf_data); 5472 _dump_buf_data_order = pagecnt; 5473 memset(_dump_buf_data, 0, 5474 ((1 << PAGE_SHIFT) << pagecnt)); 5475 break; 5476 } else 5477 --pagecnt; 5478 } 5479 if (!_dump_buf_data_order) 5480 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5481 "9044 BLKGRD: ERROR unable to allocate " 5482 "memory for hexdump\n"); 5483 } else 5484 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5485 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5486 "\n", _dump_buf_data); 5487 if (!_dump_buf_dif) { 5488 while (pagecnt) { 5489 _dump_buf_dif = 5490 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5491 if (_dump_buf_dif) { 5492 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5493 "9046 BLKGRD: allocated %d pages for " 5494 "_dump_buf_dif at 0x%p\n", 5495 (1 << pagecnt), _dump_buf_dif); 5496 _dump_buf_dif_order = pagecnt; 5497 memset(_dump_buf_dif, 0, 5498 ((1 << PAGE_SHIFT) << pagecnt)); 5499 break; 5500 } else 5501 --pagecnt; 5502 } 5503 if (!_dump_buf_dif_order) 5504 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5505 "9047 BLKGRD: ERROR unable to allocate " 5506 "memory for hexdump\n"); 5507 } else 5508 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5509 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5510 _dump_buf_dif); 5511 } 5512 5513 /** 5514 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5515 * @phba: pointer to lpfc hba data structure. 5516 * 5517 * This routine is invoked to perform all the necessary post initialization 5518 * setup for the device. 5519 **/ 5520 static void 5521 lpfc_post_init_setup(struct lpfc_hba *phba) 5522 { 5523 struct Scsi_Host *shost; 5524 struct lpfc_adapter_event_header adapter_event; 5525 5526 /* Get the default values for Model Name and Description */ 5527 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5528 5529 /* 5530 * hba setup may have changed the hba_queue_depth so we need to 5531 * adjust the value of can_queue. 5532 */ 5533 shost = pci_get_drvdata(phba->pcidev); 5534 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5535 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5536 lpfc_setup_bg(phba, shost); 5537 5538 lpfc_host_attrib_init(shost); 5539 5540 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5541 spin_lock_irq(shost->host_lock); 5542 lpfc_poll_start_timer(phba); 5543 spin_unlock_irq(shost->host_lock); 5544 } 5545 5546 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5547 "0428 Perform SCSI scan\n"); 5548 /* Send board arrival event to upper layer */ 5549 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5550 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5551 fc_host_post_vendor_event(shost, fc_get_event_number(), 5552 sizeof(adapter_event), 5553 (char *) &adapter_event, 5554 LPFC_NL_VENDOR_ID); 5555 return; 5556 } 5557 5558 /** 5559 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5560 * @phba: pointer to lpfc hba data structure. 5561 * 5562 * This routine is invoked to set up the PCI device memory space for device 5563 * with SLI-3 interface spec. 5564 * 5565 * Return codes 5566 * 0 - successful 5567 * other values - error 5568 **/ 5569 static int 5570 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5571 { 5572 struct pci_dev *pdev; 5573 unsigned long bar0map_len, bar2map_len; 5574 int i, hbq_count; 5575 void *ptr; 5576 int error = -ENODEV; 5577 5578 /* Obtain PCI device reference */ 5579 if (!phba->pcidev) 5580 return error; 5581 else 5582 pdev = phba->pcidev; 5583 5584 /* Set the device DMA mask size */ 5585 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5586 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5587 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5588 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5589 return error; 5590 } 5591 } 5592 5593 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5594 * required by each mapping. 5595 */ 5596 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5597 bar0map_len = pci_resource_len(pdev, 0); 5598 5599 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5600 bar2map_len = pci_resource_len(pdev, 2); 5601 5602 /* Map HBA SLIM to a kernel virtual address. */ 5603 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5604 if (!phba->slim_memmap_p) { 5605 dev_printk(KERN_ERR, &pdev->dev, 5606 "ioremap failed for SLIM memory.\n"); 5607 goto out; 5608 } 5609 5610 /* Map HBA Control Registers to a kernel virtual address. */ 5611 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5612 if (!phba->ctrl_regs_memmap_p) { 5613 dev_printk(KERN_ERR, &pdev->dev, 5614 "ioremap failed for HBA control registers.\n"); 5615 goto out_iounmap_slim; 5616 } 5617 5618 /* Allocate memory for SLI-2 structures */ 5619 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5620 SLI2_SLIM_SIZE, 5621 &phba->slim2p.phys, 5622 GFP_KERNEL); 5623 if (!phba->slim2p.virt) 5624 goto out_iounmap; 5625 5626 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5627 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5628 phba->mbox_ext = (phba->slim2p.virt + 5629 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5630 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5631 phba->IOCBs = (phba->slim2p.virt + 5632 offsetof(struct lpfc_sli2_slim, IOCBs)); 5633 5634 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5635 lpfc_sli_hbq_size(), 5636 &phba->hbqslimp.phys, 5637 GFP_KERNEL); 5638 if (!phba->hbqslimp.virt) 5639 goto out_free_slim; 5640 5641 hbq_count = lpfc_sli_hbq_count(); 5642 ptr = phba->hbqslimp.virt; 5643 for (i = 0; i < hbq_count; ++i) { 5644 phba->hbqs[i].hbq_virt = ptr; 5645 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5646 ptr += (lpfc_hbq_defs[i]->entry_count * 5647 sizeof(struct lpfc_hbq_entry)); 5648 } 5649 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5650 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5651 5652 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5653 5654 INIT_LIST_HEAD(&phba->rb_pend_list); 5655 5656 phba->MBslimaddr = phba->slim_memmap_p; 5657 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5658 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5659 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5660 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5661 5662 return 0; 5663 5664 out_free_slim: 5665 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5666 phba->slim2p.virt, phba->slim2p.phys); 5667 out_iounmap: 5668 iounmap(phba->ctrl_regs_memmap_p); 5669 out_iounmap_slim: 5670 iounmap(phba->slim_memmap_p); 5671 out: 5672 return error; 5673 } 5674 5675 /** 5676 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5677 * @phba: pointer to lpfc hba data structure. 5678 * 5679 * This routine is invoked to unset the PCI device memory space for device 5680 * with SLI-3 interface spec. 5681 **/ 5682 static void 5683 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5684 { 5685 struct pci_dev *pdev; 5686 5687 /* Obtain PCI device reference */ 5688 if (!phba->pcidev) 5689 return; 5690 else 5691 pdev = phba->pcidev; 5692 5693 /* Free coherent DMA memory allocated */ 5694 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5695 phba->hbqslimp.virt, phba->hbqslimp.phys); 5696 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5697 phba->slim2p.virt, phba->slim2p.phys); 5698 5699 /* I/O memory unmap */ 5700 iounmap(phba->ctrl_regs_memmap_p); 5701 iounmap(phba->slim_memmap_p); 5702 5703 return; 5704 } 5705 5706 /** 5707 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5708 * @phba: pointer to lpfc hba data structure. 5709 * 5710 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5711 * done and check status. 5712 * 5713 * Return 0 if successful, otherwise -ENODEV. 5714 **/ 5715 int 5716 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5717 { 5718 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5719 struct lpfc_register reg_data; 5720 int i, port_error = 0; 5721 uint32_t if_type; 5722 5723 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5724 memset(®_data, 0, sizeof(reg_data)); 5725 if (!phba->sli4_hba.PSMPHRregaddr) 5726 return -ENODEV; 5727 5728 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5729 for (i = 0; i < 3000; i++) { 5730 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5731 &portsmphr_reg.word0) || 5732 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5733 /* Port has a fatal POST error, break out */ 5734 port_error = -ENODEV; 5735 break; 5736 } 5737 if (LPFC_POST_STAGE_PORT_READY == 5738 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5739 break; 5740 msleep(10); 5741 } 5742 5743 /* 5744 * If there was a port error during POST, then don't proceed with 5745 * other register reads as the data may not be valid. Just exit. 5746 */ 5747 if (port_error) { 5748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5749 "1408 Port Failed POST - portsmphr=0x%x, " 5750 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5751 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5752 portsmphr_reg.word0, 5753 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5754 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5755 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5756 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5757 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5758 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5759 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5760 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5761 } else { 5762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5763 "2534 Device Info: SLIFamily=0x%x, " 5764 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5765 "SLIHint_2=0x%x, FT=0x%x\n", 5766 bf_get(lpfc_sli_intf_sli_family, 5767 &phba->sli4_hba.sli_intf), 5768 bf_get(lpfc_sli_intf_slirev, 5769 &phba->sli4_hba.sli_intf), 5770 bf_get(lpfc_sli_intf_if_type, 5771 &phba->sli4_hba.sli_intf), 5772 bf_get(lpfc_sli_intf_sli_hint1, 5773 &phba->sli4_hba.sli_intf), 5774 bf_get(lpfc_sli_intf_sli_hint2, 5775 &phba->sli4_hba.sli_intf), 5776 bf_get(lpfc_sli_intf_func_type, 5777 &phba->sli4_hba.sli_intf)); 5778 /* 5779 * Check for other Port errors during the initialization 5780 * process. Fail the load if the port did not come up 5781 * correctly. 5782 */ 5783 if_type = bf_get(lpfc_sli_intf_if_type, 5784 &phba->sli4_hba.sli_intf); 5785 switch (if_type) { 5786 case LPFC_SLI_INTF_IF_TYPE_0: 5787 phba->sli4_hba.ue_mask_lo = 5788 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5789 phba->sli4_hba.ue_mask_hi = 5790 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5791 uerrlo_reg.word0 = 5792 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5793 uerrhi_reg.word0 = 5794 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5795 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5796 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5798 "1422 Unrecoverable Error " 5799 "Detected during POST " 5800 "uerr_lo_reg=0x%x, " 5801 "uerr_hi_reg=0x%x, " 5802 "ue_mask_lo_reg=0x%x, " 5803 "ue_mask_hi_reg=0x%x\n", 5804 uerrlo_reg.word0, 5805 uerrhi_reg.word0, 5806 phba->sli4_hba.ue_mask_lo, 5807 phba->sli4_hba.ue_mask_hi); 5808 port_error = -ENODEV; 5809 } 5810 break; 5811 case LPFC_SLI_INTF_IF_TYPE_2: 5812 /* Final checks. The port status should be clean. */ 5813 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 5814 ®_data.word0) || 5815 (bf_get(lpfc_sliport_status_err, ®_data) && 5816 !bf_get(lpfc_sliport_status_rn, ®_data))) { 5817 phba->work_status[0] = 5818 readl(phba->sli4_hba.u.if_type2. 5819 ERR1regaddr); 5820 phba->work_status[1] = 5821 readl(phba->sli4_hba.u.if_type2. 5822 ERR2regaddr); 5823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5824 "2888 Unrecoverable port error " 5825 "following POST: port status reg " 5826 "0x%x, port_smphr reg 0x%x, " 5827 "error 1=0x%x, error 2=0x%x\n", 5828 reg_data.word0, 5829 portsmphr_reg.word0, 5830 phba->work_status[0], 5831 phba->work_status[1]); 5832 port_error = -ENODEV; 5833 } 5834 break; 5835 case LPFC_SLI_INTF_IF_TYPE_1: 5836 default: 5837 break; 5838 } 5839 } 5840 return port_error; 5841 } 5842 5843 /** 5844 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 5845 * @phba: pointer to lpfc hba data structure. 5846 * @if_type: The SLI4 interface type getting configured. 5847 * 5848 * This routine is invoked to set up SLI4 BAR0 PCI config space register 5849 * memory map. 5850 **/ 5851 static void 5852 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 5853 { 5854 switch (if_type) { 5855 case LPFC_SLI_INTF_IF_TYPE_0: 5856 phba->sli4_hba.u.if_type0.UERRLOregaddr = 5857 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 5858 phba->sli4_hba.u.if_type0.UERRHIregaddr = 5859 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 5860 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 5861 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 5862 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 5863 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 5864 phba->sli4_hba.SLIINTFregaddr = 5865 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5866 break; 5867 case LPFC_SLI_INTF_IF_TYPE_2: 5868 phba->sli4_hba.u.if_type2.ERR1regaddr = 5869 phba->sli4_hba.conf_regs_memmap_p + 5870 LPFC_CTL_PORT_ER1_OFFSET; 5871 phba->sli4_hba.u.if_type2.ERR2regaddr = 5872 phba->sli4_hba.conf_regs_memmap_p + 5873 LPFC_CTL_PORT_ER2_OFFSET; 5874 phba->sli4_hba.u.if_type2.CTRLregaddr = 5875 phba->sli4_hba.conf_regs_memmap_p + 5876 LPFC_CTL_PORT_CTL_OFFSET; 5877 phba->sli4_hba.u.if_type2.STATUSregaddr = 5878 phba->sli4_hba.conf_regs_memmap_p + 5879 LPFC_CTL_PORT_STA_OFFSET; 5880 phba->sli4_hba.SLIINTFregaddr = 5881 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 5882 phba->sli4_hba.PSMPHRregaddr = 5883 phba->sli4_hba.conf_regs_memmap_p + 5884 LPFC_CTL_PORT_SEM_OFFSET; 5885 phba->sli4_hba.RQDBregaddr = 5886 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 5887 phba->sli4_hba.WQDBregaddr = 5888 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 5889 phba->sli4_hba.EQCQDBregaddr = 5890 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 5891 phba->sli4_hba.MQDBregaddr = 5892 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 5893 phba->sli4_hba.BMBXregaddr = 5894 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 5895 break; 5896 case LPFC_SLI_INTF_IF_TYPE_1: 5897 default: 5898 dev_printk(KERN_ERR, &phba->pcidev->dev, 5899 "FATAL - unsupported SLI4 interface type - %d\n", 5900 if_type); 5901 break; 5902 } 5903 } 5904 5905 /** 5906 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 5907 * @phba: pointer to lpfc hba data structure. 5908 * 5909 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 5910 * memory map. 5911 **/ 5912 static void 5913 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 5914 { 5915 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5916 LPFC_SLIPORT_IF0_SMPHR; 5917 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5918 LPFC_HST_ISR0; 5919 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5920 LPFC_HST_IMR0; 5921 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 5922 LPFC_HST_ISCR0; 5923 } 5924 5925 /** 5926 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 5927 * @phba: pointer to lpfc hba data structure. 5928 * @vf: virtual function number 5929 * 5930 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 5931 * based on the given viftual function number, @vf. 5932 * 5933 * Return 0 if successful, otherwise -ENODEV. 5934 **/ 5935 static int 5936 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 5937 { 5938 if (vf > LPFC_VIR_FUNC_MAX) 5939 return -ENODEV; 5940 5941 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5942 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 5943 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5944 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 5945 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5946 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 5947 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5948 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 5949 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 5950 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 5951 return 0; 5952 } 5953 5954 /** 5955 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 5956 * @phba: pointer to lpfc hba data structure. 5957 * 5958 * This routine is invoked to create the bootstrap mailbox 5959 * region consistent with the SLI-4 interface spec. This 5960 * routine allocates all memory necessary to communicate 5961 * mailbox commands to the port and sets up all alignment 5962 * needs. No locks are expected to be held when calling 5963 * this routine. 5964 * 5965 * Return codes 5966 * 0 - successful 5967 * -ENOMEM - could not allocated memory. 5968 **/ 5969 static int 5970 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 5971 { 5972 uint32_t bmbx_size; 5973 struct lpfc_dmabuf *dmabuf; 5974 struct dma_address *dma_address; 5975 uint32_t pa_addr; 5976 uint64_t phys_addr; 5977 5978 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5979 if (!dmabuf) 5980 return -ENOMEM; 5981 5982 /* 5983 * The bootstrap mailbox region is comprised of 2 parts 5984 * plus an alignment restriction of 16 bytes. 5985 */ 5986 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 5987 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5988 bmbx_size, 5989 &dmabuf->phys, 5990 GFP_KERNEL); 5991 if (!dmabuf->virt) { 5992 kfree(dmabuf); 5993 return -ENOMEM; 5994 } 5995 memset(dmabuf->virt, 0, bmbx_size); 5996 5997 /* 5998 * Initialize the bootstrap mailbox pointers now so that the register 5999 * operations are simple later. The mailbox dma address is required 6000 * to be 16-byte aligned. Also align the virtual memory as each 6001 * maibox is copied into the bmbx mailbox region before issuing the 6002 * command to the port. 6003 */ 6004 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6005 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6006 6007 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6008 LPFC_ALIGN_16_BYTE); 6009 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6010 LPFC_ALIGN_16_BYTE); 6011 6012 /* 6013 * Set the high and low physical addresses now. The SLI4 alignment 6014 * requirement is 16 bytes and the mailbox is posted to the port 6015 * as two 30-bit addresses. The other data is a bit marking whether 6016 * the 30-bit address is the high or low address. 6017 * Upcast bmbx aphys to 64bits so shift instruction compiles 6018 * clean on 32 bit machines. 6019 */ 6020 dma_address = &phba->sli4_hba.bmbx.dma_address; 6021 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6022 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6023 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6024 LPFC_BMBX_BIT1_ADDR_HI); 6025 6026 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6027 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6028 LPFC_BMBX_BIT1_ADDR_LO); 6029 return 0; 6030 } 6031 6032 /** 6033 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6034 * @phba: pointer to lpfc hba data structure. 6035 * 6036 * This routine is invoked to teardown the bootstrap mailbox 6037 * region and release all host resources. This routine requires 6038 * the caller to ensure all mailbox commands recovered, no 6039 * additional mailbox comands are sent, and interrupts are disabled 6040 * before calling this routine. 6041 * 6042 **/ 6043 static void 6044 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6045 { 6046 dma_free_coherent(&phba->pcidev->dev, 6047 phba->sli4_hba.bmbx.bmbx_size, 6048 phba->sli4_hba.bmbx.dmabuf->virt, 6049 phba->sli4_hba.bmbx.dmabuf->phys); 6050 6051 kfree(phba->sli4_hba.bmbx.dmabuf); 6052 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6053 } 6054 6055 /** 6056 * lpfc_sli4_read_config - Get the config parameters. 6057 * @phba: pointer to lpfc hba data structure. 6058 * 6059 * This routine is invoked to read the configuration parameters from the HBA. 6060 * The configuration parameters are used to set the base and maximum values 6061 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6062 * allocation for the port. 6063 * 6064 * Return codes 6065 * 0 - successful 6066 * -ENOMEM - No available memory 6067 * -EIO - The mailbox failed to complete successfully. 6068 **/ 6069 int 6070 lpfc_sli4_read_config(struct lpfc_hba *phba) 6071 { 6072 LPFC_MBOXQ_t *pmb; 6073 struct lpfc_mbx_read_config *rd_config; 6074 union lpfc_sli4_cfg_shdr *shdr; 6075 uint32_t shdr_status, shdr_add_status; 6076 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6077 struct lpfc_rsrc_desc_fcfcoe *desc; 6078 uint32_t desc_count; 6079 int length, i, rc = 0; 6080 6081 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6082 if (!pmb) { 6083 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6084 "2011 Unable to allocate memory for issuing " 6085 "SLI_CONFIG_SPECIAL mailbox command\n"); 6086 return -ENOMEM; 6087 } 6088 6089 lpfc_read_config(phba, pmb); 6090 6091 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6092 if (rc != MBX_SUCCESS) { 6093 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6094 "2012 Mailbox failed , mbxCmd x%x " 6095 "READ_CONFIG, mbxStatus x%x\n", 6096 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6097 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6098 rc = -EIO; 6099 } else { 6100 rd_config = &pmb->u.mqe.un.rd_config; 6101 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6102 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6103 phba->sli4_hba.lnk_info.lnk_tp = 6104 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6105 phba->sli4_hba.lnk_info.lnk_no = 6106 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6107 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6108 "3081 lnk_type:%d, lnk_numb:%d\n", 6109 phba->sli4_hba.lnk_info.lnk_tp, 6110 phba->sli4_hba.lnk_info.lnk_no); 6111 } else 6112 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6113 "3082 Mailbox (x%x) returned ldv:x0\n", 6114 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6115 phba->sli4_hba.extents_in_use = 6116 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6117 phba->sli4_hba.max_cfg_param.max_xri = 6118 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6119 phba->sli4_hba.max_cfg_param.xri_base = 6120 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6121 phba->sli4_hba.max_cfg_param.max_vpi = 6122 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6123 phba->sli4_hba.max_cfg_param.vpi_base = 6124 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6125 phba->sli4_hba.max_cfg_param.max_rpi = 6126 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6127 phba->sli4_hba.max_cfg_param.rpi_base = 6128 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6129 phba->sli4_hba.max_cfg_param.max_vfi = 6130 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6131 phba->sli4_hba.max_cfg_param.vfi_base = 6132 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6133 phba->sli4_hba.max_cfg_param.max_fcfi = 6134 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6135 phba->sli4_hba.max_cfg_param.max_eq = 6136 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6137 phba->sli4_hba.max_cfg_param.max_rq = 6138 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6139 phba->sli4_hba.max_cfg_param.max_wq = 6140 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6141 phba->sli4_hba.max_cfg_param.max_cq = 6142 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6143 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6144 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6145 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6146 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6147 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6148 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6149 phba->max_vports = phba->max_vpi; 6150 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6151 "2003 cfg params Extents? %d " 6152 "XRI(B:%d M:%d), " 6153 "VPI(B:%d M:%d) " 6154 "VFI(B:%d M:%d) " 6155 "RPI(B:%d M:%d) " 6156 "FCFI(Count:%d)\n", 6157 phba->sli4_hba.extents_in_use, 6158 phba->sli4_hba.max_cfg_param.xri_base, 6159 phba->sli4_hba.max_cfg_param.max_xri, 6160 phba->sli4_hba.max_cfg_param.vpi_base, 6161 phba->sli4_hba.max_cfg_param.max_vpi, 6162 phba->sli4_hba.max_cfg_param.vfi_base, 6163 phba->sli4_hba.max_cfg_param.max_vfi, 6164 phba->sli4_hba.max_cfg_param.rpi_base, 6165 phba->sli4_hba.max_cfg_param.max_rpi, 6166 phba->sli4_hba.max_cfg_param.max_fcfi); 6167 } 6168 6169 if (rc) 6170 goto read_cfg_out; 6171 6172 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6173 if (phba->cfg_hba_queue_depth > 6174 (phba->sli4_hba.max_cfg_param.max_xri - 6175 lpfc_sli4_get_els_iocb_cnt(phba))) 6176 phba->cfg_hba_queue_depth = 6177 phba->sli4_hba.max_cfg_param.max_xri - 6178 lpfc_sli4_get_els_iocb_cnt(phba); 6179 6180 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6181 LPFC_SLI_INTF_IF_TYPE_2) 6182 goto read_cfg_out; 6183 6184 /* get the pf# and vf# for SLI4 if_type 2 port */ 6185 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6186 sizeof(struct lpfc_sli4_cfg_mhdr)); 6187 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6188 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6189 length, LPFC_SLI4_MBX_EMBED); 6190 6191 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6192 shdr = (union lpfc_sli4_cfg_shdr *) 6193 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6194 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6195 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6196 if (rc || shdr_status || shdr_add_status) { 6197 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6198 "3026 Mailbox failed , mbxCmd x%x " 6199 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6200 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6201 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6202 rc = -EIO; 6203 goto read_cfg_out; 6204 } 6205 6206 /* search for fc_fcoe resrouce descriptor */ 6207 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6208 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6209 6210 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6211 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6212 &get_func_cfg->func_cfg.desc[i]; 6213 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6214 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6215 phba->sli4_hba.iov.pf_number = 6216 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6217 phba->sli4_hba.iov.vf_number = 6218 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6219 break; 6220 } 6221 } 6222 6223 if (i < LPFC_RSRC_DESC_MAX_NUM) 6224 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6225 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6226 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6227 phba->sli4_hba.iov.vf_number); 6228 else { 6229 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6230 "3028 GET_FUNCTION_CONFIG: failed to find " 6231 "Resrouce Descriptor:x%x\n", 6232 LPFC_RSRC_DESC_TYPE_FCFCOE); 6233 rc = -EIO; 6234 } 6235 6236 read_cfg_out: 6237 mempool_free(pmb, phba->mbox_mem_pool); 6238 return rc; 6239 } 6240 6241 /** 6242 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6243 * @phba: pointer to lpfc hba data structure. 6244 * 6245 * This routine is invoked to setup the port-side endian order when 6246 * the port if_type is 0. This routine has no function for other 6247 * if_types. 6248 * 6249 * Return codes 6250 * 0 - successful 6251 * -ENOMEM - No available memory 6252 * -EIO - The mailbox failed to complete successfully. 6253 **/ 6254 static int 6255 lpfc_setup_endian_order(struct lpfc_hba *phba) 6256 { 6257 LPFC_MBOXQ_t *mboxq; 6258 uint32_t if_type, rc = 0; 6259 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6260 HOST_ENDIAN_HIGH_WORD1}; 6261 6262 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6263 switch (if_type) { 6264 case LPFC_SLI_INTF_IF_TYPE_0: 6265 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6266 GFP_KERNEL); 6267 if (!mboxq) { 6268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6269 "0492 Unable to allocate memory for " 6270 "issuing SLI_CONFIG_SPECIAL mailbox " 6271 "command\n"); 6272 return -ENOMEM; 6273 } 6274 6275 /* 6276 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6277 * two words to contain special data values and no other data. 6278 */ 6279 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6280 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6281 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6282 if (rc != MBX_SUCCESS) { 6283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6284 "0493 SLI_CONFIG_SPECIAL mailbox " 6285 "failed with status x%x\n", 6286 rc); 6287 rc = -EIO; 6288 } 6289 mempool_free(mboxq, phba->mbox_mem_pool); 6290 break; 6291 case LPFC_SLI_INTF_IF_TYPE_2: 6292 case LPFC_SLI_INTF_IF_TYPE_1: 6293 default: 6294 break; 6295 } 6296 return rc; 6297 } 6298 6299 /** 6300 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6301 * @phba: pointer to lpfc hba data structure. 6302 * 6303 * This routine is invoked to check the user settable queue counts for EQs and 6304 * CQs. after this routine is called the counts will be set to valid values that 6305 * adhere to the constraints of the system's interrupt vectors and the port's 6306 * queue resources. 6307 * 6308 * Return codes 6309 * 0 - successful 6310 * -ENOMEM - No available memory 6311 **/ 6312 static int 6313 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6314 { 6315 int cfg_fcp_wq_count; 6316 int cfg_fcp_eq_count; 6317 6318 /* 6319 * Sanity check for confiugred queue parameters against the run-time 6320 * device parameters 6321 */ 6322 6323 /* Sanity check on FCP fast-path WQ parameters */ 6324 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6325 if (cfg_fcp_wq_count > 6326 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6327 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6328 LPFC_SP_WQN_DEF; 6329 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6331 "2581 Not enough WQs (%d) from " 6332 "the pci function for supporting " 6333 "FCP WQs (%d)\n", 6334 phba->sli4_hba.max_cfg_param.max_wq, 6335 phba->cfg_fcp_wq_count); 6336 goto out_error; 6337 } 6338 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6339 "2582 Not enough WQs (%d) from the pci " 6340 "function for supporting the requested " 6341 "FCP WQs (%d), the actual FCP WQs can " 6342 "be supported: %d\n", 6343 phba->sli4_hba.max_cfg_param.max_wq, 6344 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6345 } 6346 /* The actual number of FCP work queues adopted */ 6347 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6348 6349 /* Sanity check on FCP fast-path EQ parameters */ 6350 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6351 if (cfg_fcp_eq_count > 6352 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6353 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6354 LPFC_SP_EQN_DEF; 6355 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6357 "2574 Not enough EQs (%d) from the " 6358 "pci function for supporting FCP " 6359 "EQs (%d)\n", 6360 phba->sli4_hba.max_cfg_param.max_eq, 6361 phba->cfg_fcp_eq_count); 6362 goto out_error; 6363 } 6364 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6365 "2575 Not enough EQs (%d) from the pci " 6366 "function for supporting the requested " 6367 "FCP EQs (%d), the actual FCP EQs can " 6368 "be supported: %d\n", 6369 phba->sli4_hba.max_cfg_param.max_eq, 6370 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6371 } 6372 /* It does not make sense to have more EQs than WQs */ 6373 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6374 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6375 "2593 The FCP EQ count(%d) cannot be greater " 6376 "than the FCP WQ count(%d), limiting the " 6377 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6378 phba->cfg_fcp_wq_count, 6379 phba->cfg_fcp_wq_count); 6380 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6381 } 6382 /* The actual number of FCP event queues adopted */ 6383 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6384 /* The overall number of event queues used */ 6385 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6386 6387 /* Get EQ depth from module parameter, fake the default for now */ 6388 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6389 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6390 6391 /* Get CQ depth from module parameter, fake the default for now */ 6392 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6393 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6394 6395 return 0; 6396 out_error: 6397 return -ENOMEM; 6398 } 6399 6400 /** 6401 * lpfc_sli4_queue_create - Create all the SLI4 queues 6402 * @phba: pointer to lpfc hba data structure. 6403 * 6404 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6405 * operation. For each SLI4 queue type, the parameters such as queue entry 6406 * count (queue depth) shall be taken from the module parameter. For now, 6407 * we just use some constant number as place holder. 6408 * 6409 * Return codes 6410 * 0 - sucessful 6411 * -ENOMEM - No availble memory 6412 * -EIO - The mailbox failed to complete successfully. 6413 **/ 6414 int 6415 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6416 { 6417 struct lpfc_queue *qdesc; 6418 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6419 6420 /* 6421 * Create Event Queues (EQs) 6422 */ 6423 6424 /* Create slow path event queue */ 6425 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6426 phba->sli4_hba.eq_ecount); 6427 if (!qdesc) { 6428 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6429 "0496 Failed allocate slow-path EQ\n"); 6430 goto out_error; 6431 } 6432 phba->sli4_hba.sp_eq = qdesc; 6433 6434 /* 6435 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be 6436 * zero whenever there is exactly one interrupt vector. This is not 6437 * an error. 6438 */ 6439 if (phba->cfg_fcp_eq_count) { 6440 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6441 phba->cfg_fcp_eq_count), GFP_KERNEL); 6442 if (!phba->sli4_hba.fp_eq) { 6443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6444 "2576 Failed allocate memory for " 6445 "fast-path EQ record array\n"); 6446 goto out_free_sp_eq; 6447 } 6448 } 6449 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6450 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6451 phba->sli4_hba.eq_ecount); 6452 if (!qdesc) { 6453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6454 "0497 Failed allocate fast-path EQ\n"); 6455 goto out_free_fp_eq; 6456 } 6457 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6458 } 6459 6460 /* 6461 * Create Complete Queues (CQs) 6462 */ 6463 6464 /* Create slow-path Mailbox Command Complete Queue */ 6465 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6466 phba->sli4_hba.cq_ecount); 6467 if (!qdesc) { 6468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6469 "0500 Failed allocate slow-path mailbox CQ\n"); 6470 goto out_free_fp_eq; 6471 } 6472 phba->sli4_hba.mbx_cq = qdesc; 6473 6474 /* Create slow-path ELS Complete Queue */ 6475 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6476 phba->sli4_hba.cq_ecount); 6477 if (!qdesc) { 6478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6479 "0501 Failed allocate slow-path ELS CQ\n"); 6480 goto out_free_mbx_cq; 6481 } 6482 phba->sli4_hba.els_cq = qdesc; 6483 6484 6485 /* 6486 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. 6487 * If there are no FCP EQs then create exactly one FCP CQ. 6488 */ 6489 if (phba->cfg_fcp_eq_count) 6490 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6491 phba->cfg_fcp_eq_count), 6492 GFP_KERNEL); 6493 else 6494 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), 6495 GFP_KERNEL); 6496 if (!phba->sli4_hba.fcp_cq) { 6497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6498 "2577 Failed allocate memory for fast-path " 6499 "CQ record array\n"); 6500 goto out_free_els_cq; 6501 } 6502 fcp_cqidx = 0; 6503 do { 6504 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6505 phba->sli4_hba.cq_ecount); 6506 if (!qdesc) { 6507 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6508 "0499 Failed allocate fast-path FCP " 6509 "CQ (%d)\n", fcp_cqidx); 6510 goto out_free_fcp_cq; 6511 } 6512 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6513 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6514 6515 /* Create Mailbox Command Queue */ 6516 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6517 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6518 6519 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6520 phba->sli4_hba.mq_ecount); 6521 if (!qdesc) { 6522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6523 "0505 Failed allocate slow-path MQ\n"); 6524 goto out_free_fcp_cq; 6525 } 6526 phba->sli4_hba.mbx_wq = qdesc; 6527 6528 /* 6529 * Create all the Work Queues (WQs) 6530 */ 6531 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6532 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6533 6534 /* Create slow-path ELS Work Queue */ 6535 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6536 phba->sli4_hba.wq_ecount); 6537 if (!qdesc) { 6538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6539 "0504 Failed allocate slow-path ELS WQ\n"); 6540 goto out_free_mbx_wq; 6541 } 6542 phba->sli4_hba.els_wq = qdesc; 6543 6544 /* Create fast-path FCP Work Queue(s) */ 6545 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6546 phba->cfg_fcp_wq_count), GFP_KERNEL); 6547 if (!phba->sli4_hba.fcp_wq) { 6548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6549 "2578 Failed allocate memory for fast-path " 6550 "WQ record array\n"); 6551 goto out_free_els_wq; 6552 } 6553 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6554 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6555 phba->sli4_hba.wq_ecount); 6556 if (!qdesc) { 6557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6558 "0503 Failed allocate fast-path FCP " 6559 "WQ (%d)\n", fcp_wqidx); 6560 goto out_free_fcp_wq; 6561 } 6562 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6563 } 6564 6565 /* 6566 * Create Receive Queue (RQ) 6567 */ 6568 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6569 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6570 6571 /* Create Receive Queue for header */ 6572 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6573 phba->sli4_hba.rq_ecount); 6574 if (!qdesc) { 6575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6576 "0506 Failed allocate receive HRQ\n"); 6577 goto out_free_fcp_wq; 6578 } 6579 phba->sli4_hba.hdr_rq = qdesc; 6580 6581 /* Create Receive Queue for data */ 6582 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6583 phba->sli4_hba.rq_ecount); 6584 if (!qdesc) { 6585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6586 "0507 Failed allocate receive DRQ\n"); 6587 goto out_free_hdr_rq; 6588 } 6589 phba->sli4_hba.dat_rq = qdesc; 6590 6591 return 0; 6592 6593 out_free_hdr_rq: 6594 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6595 phba->sli4_hba.hdr_rq = NULL; 6596 out_free_fcp_wq: 6597 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6598 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6599 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6600 } 6601 kfree(phba->sli4_hba.fcp_wq); 6602 phba->sli4_hba.fcp_wq = NULL; 6603 out_free_els_wq: 6604 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6605 phba->sli4_hba.els_wq = NULL; 6606 out_free_mbx_wq: 6607 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6608 phba->sli4_hba.mbx_wq = NULL; 6609 out_free_fcp_cq: 6610 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6611 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6612 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6613 } 6614 kfree(phba->sli4_hba.fcp_cq); 6615 phba->sli4_hba.fcp_cq = NULL; 6616 out_free_els_cq: 6617 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6618 phba->sli4_hba.els_cq = NULL; 6619 out_free_mbx_cq: 6620 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6621 phba->sli4_hba.mbx_cq = NULL; 6622 out_free_fp_eq: 6623 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6624 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6625 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6626 } 6627 kfree(phba->sli4_hba.fp_eq); 6628 phba->sli4_hba.fp_eq = NULL; 6629 out_free_sp_eq: 6630 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6631 phba->sli4_hba.sp_eq = NULL; 6632 out_error: 6633 return -ENOMEM; 6634 } 6635 6636 /** 6637 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6638 * @phba: pointer to lpfc hba data structure. 6639 * 6640 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6641 * operation. 6642 * 6643 * Return codes 6644 * 0 - successful 6645 * -ENOMEM - No available memory 6646 * -EIO - The mailbox failed to complete successfully. 6647 **/ 6648 void 6649 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6650 { 6651 int fcp_qidx; 6652 6653 /* Release mailbox command work queue */ 6654 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6655 phba->sli4_hba.mbx_wq = NULL; 6656 6657 /* Release ELS work queue */ 6658 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6659 phba->sli4_hba.els_wq = NULL; 6660 6661 /* Release FCP work queue */ 6662 if (phba->sli4_hba.fcp_wq != NULL) 6663 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; 6664 fcp_qidx++) 6665 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6666 kfree(phba->sli4_hba.fcp_wq); 6667 phba->sli4_hba.fcp_wq = NULL; 6668 6669 /* Release unsolicited receive queue */ 6670 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6671 phba->sli4_hba.hdr_rq = NULL; 6672 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6673 phba->sli4_hba.dat_rq = NULL; 6674 6675 /* Release ELS complete queue */ 6676 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6677 phba->sli4_hba.els_cq = NULL; 6678 6679 /* Release mailbox command complete queue */ 6680 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6681 phba->sli4_hba.mbx_cq = NULL; 6682 6683 /* Release FCP response complete queue */ 6684 fcp_qidx = 0; 6685 if (phba->sli4_hba.fcp_cq != NULL) 6686 do 6687 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6688 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6689 kfree(phba->sli4_hba.fcp_cq); 6690 phba->sli4_hba.fcp_cq = NULL; 6691 6692 /* Release fast-path event queue */ 6693 if (phba->sli4_hba.fp_eq != NULL) 6694 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 6695 fcp_qidx++) 6696 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6697 kfree(phba->sli4_hba.fp_eq); 6698 phba->sli4_hba.fp_eq = NULL; 6699 6700 /* Release slow-path event queue */ 6701 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6702 phba->sli4_hba.sp_eq = NULL; 6703 6704 return; 6705 } 6706 6707 /** 6708 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6709 * @phba: pointer to lpfc hba data structure. 6710 * 6711 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6712 * operation. 6713 * 6714 * Return codes 6715 * 0 - successful 6716 * -ENOMEM - No available memory 6717 * -EIO - The mailbox failed to complete successfully. 6718 **/ 6719 int 6720 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6721 { 6722 int rc = -ENOMEM; 6723 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6724 int fcp_cq_index = 0; 6725 6726 /* 6727 * Set up Event Queues (EQs) 6728 */ 6729 6730 /* Set up slow-path event queue */ 6731 if (!phba->sli4_hba.sp_eq) { 6732 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6733 "0520 Slow-path EQ not allocated\n"); 6734 goto out_error; 6735 } 6736 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6737 LPFC_SP_DEF_IMAX); 6738 if (rc) { 6739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6740 "0521 Failed setup of slow-path EQ: " 6741 "rc = 0x%x\n", rc); 6742 goto out_error; 6743 } 6744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6745 "2583 Slow-path EQ setup: queue-id=%d\n", 6746 phba->sli4_hba.sp_eq->queue_id); 6747 6748 /* Set up fast-path event queue */ 6749 if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) { 6750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6751 "3147 Fast-path EQs not allocated\n"); 6752 rc = -ENOMEM; 6753 goto out_destroy_sp_eq; 6754 } 6755 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6756 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6758 "0522 Fast-path EQ (%d) not " 6759 "allocated\n", fcp_eqidx); 6760 rc = -ENOMEM; 6761 goto out_destroy_fp_eq; 6762 } 6763 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6764 phba->cfg_fcp_imax); 6765 if (rc) { 6766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6767 "0523 Failed setup of fast-path EQ " 6768 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6769 goto out_destroy_fp_eq; 6770 } 6771 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6772 "2584 Fast-path EQ setup: " 6773 "queue[%d]-id=%d\n", fcp_eqidx, 6774 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6775 } 6776 6777 /* 6778 * Set up Complete Queues (CQs) 6779 */ 6780 6781 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6782 if (!phba->sli4_hba.mbx_cq) { 6783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6784 "0528 Mailbox CQ not allocated\n"); 6785 rc = -ENOMEM; 6786 goto out_destroy_fp_eq; 6787 } 6788 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6789 LPFC_MCQ, LPFC_MBOX); 6790 if (rc) { 6791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6792 "0529 Failed setup of slow-path mailbox CQ: " 6793 "rc = 0x%x\n", rc); 6794 goto out_destroy_fp_eq; 6795 } 6796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6797 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6798 phba->sli4_hba.mbx_cq->queue_id, 6799 phba->sli4_hba.sp_eq->queue_id); 6800 6801 /* Set up slow-path ELS Complete Queue */ 6802 if (!phba->sli4_hba.els_cq) { 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "0530 ELS CQ not allocated\n"); 6805 rc = -ENOMEM; 6806 goto out_destroy_mbx_cq; 6807 } 6808 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 6809 LPFC_WCQ, LPFC_ELS); 6810 if (rc) { 6811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6812 "0531 Failed setup of slow-path ELS CQ: " 6813 "rc = 0x%x\n", rc); 6814 goto out_destroy_mbx_cq; 6815 } 6816 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6817 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 6818 phba->sli4_hba.els_cq->queue_id, 6819 phba->sli4_hba.sp_eq->queue_id); 6820 6821 /* Set up fast-path FCP Response Complete Queue */ 6822 if (!phba->sli4_hba.fcp_cq) { 6823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6824 "3148 Fast-path FCP CQ array not " 6825 "allocated\n"); 6826 rc = -ENOMEM; 6827 goto out_destroy_els_cq; 6828 } 6829 fcp_cqidx = 0; 6830 do { 6831 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 6832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6833 "0526 Fast-path FCP CQ (%d) not " 6834 "allocated\n", fcp_cqidx); 6835 rc = -ENOMEM; 6836 goto out_destroy_fcp_cq; 6837 } 6838 if (phba->cfg_fcp_eq_count) 6839 rc = lpfc_cq_create(phba, 6840 phba->sli4_hba.fcp_cq[fcp_cqidx], 6841 phba->sli4_hba.fp_eq[fcp_cqidx], 6842 LPFC_WCQ, LPFC_FCP); 6843 else 6844 rc = lpfc_cq_create(phba, 6845 phba->sli4_hba.fcp_cq[fcp_cqidx], 6846 phba->sli4_hba.sp_eq, 6847 LPFC_WCQ, LPFC_FCP); 6848 if (rc) { 6849 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6850 "0527 Failed setup of fast-path FCP " 6851 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 6852 goto out_destroy_fcp_cq; 6853 } 6854 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6855 "2588 FCP CQ setup: cq[%d]-id=%d, " 6856 "parent %seq[%d]-id=%d\n", 6857 fcp_cqidx, 6858 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 6859 (phba->cfg_fcp_eq_count) ? "" : "sp_", 6860 fcp_cqidx, 6861 (phba->cfg_fcp_eq_count) ? 6862 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 6863 phba->sli4_hba.sp_eq->queue_id); 6864 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6865 6866 /* 6867 * Set up all the Work Queues (WQs) 6868 */ 6869 6870 /* Set up Mailbox Command Queue */ 6871 if (!phba->sli4_hba.mbx_wq) { 6872 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6873 "0538 Slow-path MQ not allocated\n"); 6874 rc = -ENOMEM; 6875 goto out_destroy_fcp_cq; 6876 } 6877 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 6878 phba->sli4_hba.mbx_cq, LPFC_MBOX); 6879 if (rc) { 6880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6881 "0539 Failed setup of slow-path MQ: " 6882 "rc = 0x%x\n", rc); 6883 goto out_destroy_fcp_cq; 6884 } 6885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6886 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 6887 phba->sli4_hba.mbx_wq->queue_id, 6888 phba->sli4_hba.mbx_cq->queue_id); 6889 6890 /* Set up slow-path ELS Work Queue */ 6891 if (!phba->sli4_hba.els_wq) { 6892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6893 "0536 Slow-path ELS WQ not allocated\n"); 6894 rc = -ENOMEM; 6895 goto out_destroy_mbx_wq; 6896 } 6897 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 6898 phba->sli4_hba.els_cq, LPFC_ELS); 6899 if (rc) { 6900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6901 "0537 Failed setup of slow-path ELS WQ: " 6902 "rc = 0x%x\n", rc); 6903 goto out_destroy_mbx_wq; 6904 } 6905 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6906 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 6907 phba->sli4_hba.els_wq->queue_id, 6908 phba->sli4_hba.els_cq->queue_id); 6909 6910 /* Set up fast-path FCP Work Queue */ 6911 if (!phba->sli4_hba.fcp_wq) { 6912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6913 "3149 Fast-path FCP WQ array not " 6914 "allocated\n"); 6915 rc = -ENOMEM; 6916 goto out_destroy_els_wq; 6917 } 6918 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6919 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 6920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6921 "0534 Fast-path FCP WQ (%d) not " 6922 "allocated\n", fcp_wqidx); 6923 rc = -ENOMEM; 6924 goto out_destroy_fcp_wq; 6925 } 6926 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 6927 phba->sli4_hba.fcp_cq[fcp_cq_index], 6928 LPFC_FCP); 6929 if (rc) { 6930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6931 "0535 Failed setup of fast-path FCP " 6932 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 6933 goto out_destroy_fcp_wq; 6934 } 6935 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6936 "2591 FCP WQ setup: wq[%d]-id=%d, " 6937 "parent cq[%d]-id=%d\n", 6938 fcp_wqidx, 6939 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 6940 fcp_cq_index, 6941 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 6942 /* Round robin FCP Work Queue's Completion Queue assignment */ 6943 if (phba->cfg_fcp_eq_count) 6944 fcp_cq_index = ((fcp_cq_index + 1) % 6945 phba->cfg_fcp_eq_count); 6946 } 6947 6948 /* 6949 * Create Receive Queue (RQ) 6950 */ 6951 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 6952 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6953 "0540 Receive Queue not allocated\n"); 6954 rc = -ENOMEM; 6955 goto out_destroy_fcp_wq; 6956 } 6957 6958 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 6959 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 6960 6961 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 6962 phba->sli4_hba.els_cq, LPFC_USOL); 6963 if (rc) { 6964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6965 "0541 Failed setup of Receive Queue: " 6966 "rc = 0x%x\n", rc); 6967 goto out_destroy_fcp_wq; 6968 } 6969 6970 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6971 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 6972 "parent cq-id=%d\n", 6973 phba->sli4_hba.hdr_rq->queue_id, 6974 phba->sli4_hba.dat_rq->queue_id, 6975 phba->sli4_hba.els_cq->queue_id); 6976 return 0; 6977 6978 out_destroy_fcp_wq: 6979 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 6980 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 6981 out_destroy_els_wq: 6982 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 6983 out_destroy_mbx_wq: 6984 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 6985 out_destroy_fcp_cq: 6986 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 6987 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 6988 out_destroy_els_cq: 6989 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 6990 out_destroy_mbx_cq: 6991 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 6992 out_destroy_fp_eq: 6993 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 6994 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 6995 out_destroy_sp_eq: 6996 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 6997 out_error: 6998 return rc; 6999 } 7000 7001 /** 7002 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7003 * @phba: pointer to lpfc hba data structure. 7004 * 7005 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7006 * operation. 7007 * 7008 * Return codes 7009 * 0 - successful 7010 * -ENOMEM - No available memory 7011 * -EIO - The mailbox failed to complete successfully. 7012 **/ 7013 void 7014 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7015 { 7016 int fcp_qidx; 7017 7018 /* Unset mailbox command work queue */ 7019 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7020 /* Unset ELS work queue */ 7021 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7022 /* Unset unsolicited receive queue */ 7023 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7024 /* Unset FCP work queue */ 7025 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 7026 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7027 /* Unset mailbox command complete queue */ 7028 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7029 /* Unset ELS complete queue */ 7030 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7031 /* Unset FCP response complete queue */ 7032 if (phba->sli4_hba.fcp_cq) { 7033 fcp_qidx = 0; 7034 do { 7035 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7036 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 7037 } 7038 /* Unset fast-path event queue */ 7039 if (phba->sli4_hba.fp_eq) { 7040 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 7041 fcp_qidx++) 7042 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 7043 } 7044 /* Unset slow-path event queue */ 7045 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7046 } 7047 7048 /** 7049 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7050 * @phba: pointer to lpfc hba data structure. 7051 * 7052 * This routine is invoked to allocate and set up a pool of completion queue 7053 * events. The body of the completion queue event is a completion queue entry 7054 * CQE. For now, this pool is used for the interrupt service routine to queue 7055 * the following HBA completion queue events for the worker thread to process: 7056 * - Mailbox asynchronous events 7057 * - Receive queue completion unsolicited events 7058 * Later, this can be used for all the slow-path events. 7059 * 7060 * Return codes 7061 * 0 - successful 7062 * -ENOMEM - No available memory 7063 **/ 7064 static int 7065 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7066 { 7067 struct lpfc_cq_event *cq_event; 7068 int i; 7069 7070 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7071 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7072 if (!cq_event) 7073 goto out_pool_create_fail; 7074 list_add_tail(&cq_event->list, 7075 &phba->sli4_hba.sp_cqe_event_pool); 7076 } 7077 return 0; 7078 7079 out_pool_create_fail: 7080 lpfc_sli4_cq_event_pool_destroy(phba); 7081 return -ENOMEM; 7082 } 7083 7084 /** 7085 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7086 * @phba: pointer to lpfc hba data structure. 7087 * 7088 * This routine is invoked to free the pool of completion queue events at 7089 * driver unload time. Note that, it is the responsibility of the driver 7090 * cleanup routine to free all the outstanding completion-queue events 7091 * allocated from this pool back into the pool before invoking this routine 7092 * to destroy the pool. 7093 **/ 7094 static void 7095 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7096 { 7097 struct lpfc_cq_event *cq_event, *next_cq_event; 7098 7099 list_for_each_entry_safe(cq_event, next_cq_event, 7100 &phba->sli4_hba.sp_cqe_event_pool, list) { 7101 list_del(&cq_event->list); 7102 kfree(cq_event); 7103 } 7104 } 7105 7106 /** 7107 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7108 * @phba: pointer to lpfc hba data structure. 7109 * 7110 * This routine is the lock free version of the API invoked to allocate a 7111 * completion-queue event from the free pool. 7112 * 7113 * Return: Pointer to the newly allocated completion-queue event if successful 7114 * NULL otherwise. 7115 **/ 7116 struct lpfc_cq_event * 7117 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7118 { 7119 struct lpfc_cq_event *cq_event = NULL; 7120 7121 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7122 struct lpfc_cq_event, list); 7123 return cq_event; 7124 } 7125 7126 /** 7127 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7128 * @phba: pointer to lpfc hba data structure. 7129 * 7130 * This routine is the lock version of the API invoked to allocate a 7131 * completion-queue event from the free pool. 7132 * 7133 * Return: Pointer to the newly allocated completion-queue event if successful 7134 * NULL otherwise. 7135 **/ 7136 struct lpfc_cq_event * 7137 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7138 { 7139 struct lpfc_cq_event *cq_event; 7140 unsigned long iflags; 7141 7142 spin_lock_irqsave(&phba->hbalock, iflags); 7143 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7144 spin_unlock_irqrestore(&phba->hbalock, iflags); 7145 return cq_event; 7146 } 7147 7148 /** 7149 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7150 * @phba: pointer to lpfc hba data structure. 7151 * @cq_event: pointer to the completion queue event to be freed. 7152 * 7153 * This routine is the lock free version of the API invoked to release a 7154 * completion-queue event back into the free pool. 7155 **/ 7156 void 7157 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7158 struct lpfc_cq_event *cq_event) 7159 { 7160 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7161 } 7162 7163 /** 7164 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7165 * @phba: pointer to lpfc hba data structure. 7166 * @cq_event: pointer to the completion queue event to be freed. 7167 * 7168 * This routine is the lock version of the API invoked to release a 7169 * completion-queue event back into the free pool. 7170 **/ 7171 void 7172 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7173 struct lpfc_cq_event *cq_event) 7174 { 7175 unsigned long iflags; 7176 spin_lock_irqsave(&phba->hbalock, iflags); 7177 __lpfc_sli4_cq_event_release(phba, cq_event); 7178 spin_unlock_irqrestore(&phba->hbalock, iflags); 7179 } 7180 7181 /** 7182 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7183 * @phba: pointer to lpfc hba data structure. 7184 * 7185 * This routine is to free all the pending completion-queue events to the 7186 * back into the free pool for device reset. 7187 **/ 7188 static void 7189 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7190 { 7191 LIST_HEAD(cqelist); 7192 struct lpfc_cq_event *cqe; 7193 unsigned long iflags; 7194 7195 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7196 spin_lock_irqsave(&phba->hbalock, iflags); 7197 /* Pending FCP XRI abort events */ 7198 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7199 &cqelist); 7200 /* Pending ELS XRI abort events */ 7201 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7202 &cqelist); 7203 /* Pending asynnc events */ 7204 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7205 &cqelist); 7206 spin_unlock_irqrestore(&phba->hbalock, iflags); 7207 7208 while (!list_empty(&cqelist)) { 7209 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7210 lpfc_sli4_cq_event_release(phba, cqe); 7211 } 7212 } 7213 7214 /** 7215 * lpfc_pci_function_reset - Reset pci function. 7216 * @phba: pointer to lpfc hba data structure. 7217 * 7218 * This routine is invoked to request a PCI function reset. It will destroys 7219 * all resources assigned to the PCI function which originates this request. 7220 * 7221 * Return codes 7222 * 0 - successful 7223 * -ENOMEM - No available memory 7224 * -EIO - The mailbox failed to complete successfully. 7225 **/ 7226 int 7227 lpfc_pci_function_reset(struct lpfc_hba *phba) 7228 { 7229 LPFC_MBOXQ_t *mboxq; 7230 uint32_t rc = 0, if_type; 7231 uint32_t shdr_status, shdr_add_status; 7232 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7233 union lpfc_sli4_cfg_shdr *shdr; 7234 struct lpfc_register reg_data; 7235 uint16_t devid; 7236 7237 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7238 switch (if_type) { 7239 case LPFC_SLI_INTF_IF_TYPE_0: 7240 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7241 GFP_KERNEL); 7242 if (!mboxq) { 7243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7244 "0494 Unable to allocate memory for " 7245 "issuing SLI_FUNCTION_RESET mailbox " 7246 "command\n"); 7247 return -ENOMEM; 7248 } 7249 7250 /* Setup PCI function reset mailbox-ioctl command */ 7251 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7252 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7253 LPFC_SLI4_MBX_EMBED); 7254 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7255 shdr = (union lpfc_sli4_cfg_shdr *) 7256 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7257 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7258 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7259 &shdr->response); 7260 if (rc != MBX_TIMEOUT) 7261 mempool_free(mboxq, phba->mbox_mem_pool); 7262 if (shdr_status || shdr_add_status || rc) { 7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7264 "0495 SLI_FUNCTION_RESET mailbox " 7265 "failed with status x%x add_status x%x," 7266 " mbx status x%x\n", 7267 shdr_status, shdr_add_status, rc); 7268 rc = -ENXIO; 7269 } 7270 break; 7271 case LPFC_SLI_INTF_IF_TYPE_2: 7272 for (num_resets = 0; 7273 num_resets < MAX_IF_TYPE_2_RESETS; 7274 num_resets++) { 7275 reg_data.word0 = 0; 7276 bf_set(lpfc_sliport_ctrl_end, ®_data, 7277 LPFC_SLIPORT_LITTLE_ENDIAN); 7278 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7279 LPFC_SLIPORT_INIT_PORT); 7280 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7281 CTRLregaddr); 7282 /* flush */ 7283 pci_read_config_word(phba->pcidev, 7284 PCI_DEVICE_ID, &devid); 7285 /* 7286 * Poll the Port Status Register and wait for RDY for 7287 * up to 10 seconds. If the port doesn't respond, treat 7288 * it as an error. If the port responds with RN, start 7289 * the loop again. 7290 */ 7291 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7292 msleep(10); 7293 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7294 STATUSregaddr, ®_data.word0)) { 7295 rc = -ENODEV; 7296 goto out; 7297 } 7298 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7299 reset_again++; 7300 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7301 break; 7302 } 7303 7304 /* 7305 * If the port responds to the init request with 7306 * reset needed, delay for a bit and restart the loop. 7307 */ 7308 if (reset_again && (rdy_chk < 1000)) { 7309 msleep(10); 7310 reset_again = 0; 7311 continue; 7312 } 7313 7314 /* Detect any port errors. */ 7315 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7316 (rdy_chk >= 1000)) { 7317 phba->work_status[0] = readl( 7318 phba->sli4_hba.u.if_type2.ERR1regaddr); 7319 phba->work_status[1] = readl( 7320 phba->sli4_hba.u.if_type2.ERR2regaddr); 7321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7322 "2890 Port error detected during port " 7323 "reset(%d): port status reg 0x%x, " 7324 "error 1=0x%x, error 2=0x%x\n", 7325 num_resets, reg_data.word0, 7326 phba->work_status[0], 7327 phba->work_status[1]); 7328 rc = -ENODEV; 7329 } 7330 7331 /* 7332 * Terminate the outer loop provided the Port indicated 7333 * ready within 10 seconds. 7334 */ 7335 if (rdy_chk < 1000) 7336 break; 7337 } 7338 /* delay driver action following IF_TYPE_2 function reset */ 7339 msleep(100); 7340 break; 7341 case LPFC_SLI_INTF_IF_TYPE_1: 7342 default: 7343 break; 7344 } 7345 7346 out: 7347 /* Catch the not-ready port failure after a port reset. */ 7348 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7349 rc = -ENODEV; 7350 7351 return rc; 7352 } 7353 7354 /** 7355 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7356 * @phba: pointer to lpfc hba data structure. 7357 * @cnt: number of nop mailbox commands to send. 7358 * 7359 * This routine is invoked to send a number @cnt of NOP mailbox command and 7360 * wait for each command to complete. 7361 * 7362 * Return: the number of NOP mailbox command completed. 7363 **/ 7364 static int 7365 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7366 { 7367 LPFC_MBOXQ_t *mboxq; 7368 int length, cmdsent; 7369 uint32_t mbox_tmo; 7370 uint32_t rc = 0; 7371 uint32_t shdr_status, shdr_add_status; 7372 union lpfc_sli4_cfg_shdr *shdr; 7373 7374 if (cnt == 0) { 7375 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7376 "2518 Requested to send 0 NOP mailbox cmd\n"); 7377 return cnt; 7378 } 7379 7380 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7381 if (!mboxq) { 7382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7383 "2519 Unable to allocate memory for issuing " 7384 "NOP mailbox command\n"); 7385 return 0; 7386 } 7387 7388 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7389 length = (sizeof(struct lpfc_mbx_nop) - 7390 sizeof(struct lpfc_sli4_cfg_mhdr)); 7391 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7392 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7393 7394 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7395 if (!phba->sli4_hba.intr_enable) 7396 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7397 else { 7398 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7399 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7400 } 7401 if (rc == MBX_TIMEOUT) 7402 break; 7403 /* Check return status */ 7404 shdr = (union lpfc_sli4_cfg_shdr *) 7405 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7406 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7407 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7408 &shdr->response); 7409 if (shdr_status || shdr_add_status || rc) { 7410 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7411 "2520 NOP mailbox command failed " 7412 "status x%x add_status x%x mbx " 7413 "status x%x\n", shdr_status, 7414 shdr_add_status, rc); 7415 break; 7416 } 7417 } 7418 7419 if (rc != MBX_TIMEOUT) 7420 mempool_free(mboxq, phba->mbox_mem_pool); 7421 7422 return cmdsent; 7423 } 7424 7425 /** 7426 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7427 * @phba: pointer to lpfc hba data structure. 7428 * 7429 * This routine is invoked to set up the PCI device memory space for device 7430 * with SLI-4 interface spec. 7431 * 7432 * Return codes 7433 * 0 - successful 7434 * other values - error 7435 **/ 7436 static int 7437 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7438 { 7439 struct pci_dev *pdev; 7440 unsigned long bar0map_len, bar1map_len, bar2map_len; 7441 int error = -ENODEV; 7442 uint32_t if_type; 7443 7444 /* Obtain PCI device reference */ 7445 if (!phba->pcidev) 7446 return error; 7447 else 7448 pdev = phba->pcidev; 7449 7450 /* Set the device DMA mask size */ 7451 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7452 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7453 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7454 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7455 return error; 7456 } 7457 } 7458 7459 /* 7460 * The BARs and register set definitions and offset locations are 7461 * dependent on the if_type. 7462 */ 7463 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7464 &phba->sli4_hba.sli_intf.word0)) { 7465 return error; 7466 } 7467 7468 /* There is no SLI3 failback for SLI4 devices. */ 7469 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7470 LPFC_SLI_INTF_VALID) { 7471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7472 "2894 SLI_INTF reg contents invalid " 7473 "sli_intf reg 0x%x\n", 7474 phba->sli4_hba.sli_intf.word0); 7475 return error; 7476 } 7477 7478 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7479 /* 7480 * Get the bus address of SLI4 device Bar regions and the 7481 * number of bytes required by each mapping. The mapping of the 7482 * particular PCI BARs regions is dependent on the type of 7483 * SLI4 device. 7484 */ 7485 if (pci_resource_start(pdev, 0)) { 7486 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7487 bar0map_len = pci_resource_len(pdev, 0); 7488 7489 /* 7490 * Map SLI4 PCI Config Space Register base to a kernel virtual 7491 * addr 7492 */ 7493 phba->sli4_hba.conf_regs_memmap_p = 7494 ioremap(phba->pci_bar0_map, bar0map_len); 7495 if (!phba->sli4_hba.conf_regs_memmap_p) { 7496 dev_printk(KERN_ERR, &pdev->dev, 7497 "ioremap failed for SLI4 PCI config " 7498 "registers.\n"); 7499 goto out; 7500 } 7501 /* Set up BAR0 PCI config space register memory map */ 7502 lpfc_sli4_bar0_register_memmap(phba, if_type); 7503 } else { 7504 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7505 bar0map_len = pci_resource_len(pdev, 1); 7506 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7507 dev_printk(KERN_ERR, &pdev->dev, 7508 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7509 goto out; 7510 } 7511 phba->sli4_hba.conf_regs_memmap_p = 7512 ioremap(phba->pci_bar0_map, bar0map_len); 7513 if (!phba->sli4_hba.conf_regs_memmap_p) { 7514 dev_printk(KERN_ERR, &pdev->dev, 7515 "ioremap failed for SLI4 PCI config " 7516 "registers.\n"); 7517 goto out; 7518 } 7519 lpfc_sli4_bar0_register_memmap(phba, if_type); 7520 } 7521 7522 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7523 (pci_resource_start(pdev, 2))) { 7524 /* 7525 * Map SLI4 if type 0 HBA Control Register base to a kernel 7526 * virtual address and setup the registers. 7527 */ 7528 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7529 bar1map_len = pci_resource_len(pdev, 2); 7530 phba->sli4_hba.ctrl_regs_memmap_p = 7531 ioremap(phba->pci_bar1_map, bar1map_len); 7532 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7533 dev_printk(KERN_ERR, &pdev->dev, 7534 "ioremap failed for SLI4 HBA control registers.\n"); 7535 goto out_iounmap_conf; 7536 } 7537 lpfc_sli4_bar1_register_memmap(phba); 7538 } 7539 7540 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7541 (pci_resource_start(pdev, 4))) { 7542 /* 7543 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7544 * virtual address and setup the registers. 7545 */ 7546 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7547 bar2map_len = pci_resource_len(pdev, 4); 7548 phba->sli4_hba.drbl_regs_memmap_p = 7549 ioremap(phba->pci_bar2_map, bar2map_len); 7550 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7551 dev_printk(KERN_ERR, &pdev->dev, 7552 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7553 goto out_iounmap_ctrl; 7554 } 7555 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7556 if (error) 7557 goto out_iounmap_all; 7558 } 7559 7560 return 0; 7561 7562 out_iounmap_all: 7563 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7564 out_iounmap_ctrl: 7565 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7566 out_iounmap_conf: 7567 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7568 out: 7569 return error; 7570 } 7571 7572 /** 7573 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7574 * @phba: pointer to lpfc hba data structure. 7575 * 7576 * This routine is invoked to unset the PCI device memory space for device 7577 * with SLI-4 interface spec. 7578 **/ 7579 static void 7580 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7581 { 7582 uint32_t if_type; 7583 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7584 7585 switch (if_type) { 7586 case LPFC_SLI_INTF_IF_TYPE_0: 7587 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7588 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7589 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7590 break; 7591 case LPFC_SLI_INTF_IF_TYPE_2: 7592 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7593 break; 7594 case LPFC_SLI_INTF_IF_TYPE_1: 7595 default: 7596 dev_printk(KERN_ERR, &phba->pcidev->dev, 7597 "FATAL - unsupported SLI4 interface type - %d\n", 7598 if_type); 7599 break; 7600 } 7601 } 7602 7603 /** 7604 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7605 * @phba: pointer to lpfc hba data structure. 7606 * 7607 * This routine is invoked to enable the MSI-X interrupt vectors to device 7608 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7609 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7610 * invoked, enables either all or nothing, depending on the current 7611 * availability of PCI vector resources. The device driver is responsible 7612 * for calling the individual request_irq() to register each MSI-X vector 7613 * with a interrupt handler, which is done in this function. Note that 7614 * later when device is unloading, the driver should always call free_irq() 7615 * on all MSI-X vectors it has done request_irq() on before calling 7616 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7617 * will be left with MSI-X enabled and leaks its vectors. 7618 * 7619 * Return codes 7620 * 0 - successful 7621 * other values - error 7622 **/ 7623 static int 7624 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7625 { 7626 int rc, i; 7627 LPFC_MBOXQ_t *pmb; 7628 7629 /* Set up MSI-X multi-message vectors */ 7630 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7631 phba->msix_entries[i].entry = i; 7632 7633 /* Configure MSI-X capability structure */ 7634 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7635 ARRAY_SIZE(phba->msix_entries)); 7636 if (rc) { 7637 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7638 "0420 PCI enable MSI-X failed (%d)\n", rc); 7639 goto msi_fail_out; 7640 } 7641 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7643 "0477 MSI-X entry[%d]: vector=x%x " 7644 "message=%d\n", i, 7645 phba->msix_entries[i].vector, 7646 phba->msix_entries[i].entry); 7647 /* 7648 * Assign MSI-X vectors to interrupt handlers 7649 */ 7650 7651 /* vector-0 is associated to slow-path handler */ 7652 rc = request_irq(phba->msix_entries[0].vector, 7653 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7654 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7655 if (rc) { 7656 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7657 "0421 MSI-X slow-path request_irq failed " 7658 "(%d)\n", rc); 7659 goto msi_fail_out; 7660 } 7661 7662 /* vector-1 is associated to fast-path handler */ 7663 rc = request_irq(phba->msix_entries[1].vector, 7664 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7665 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7666 7667 if (rc) { 7668 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7669 "0429 MSI-X fast-path request_irq failed " 7670 "(%d)\n", rc); 7671 goto irq_fail_out; 7672 } 7673 7674 /* 7675 * Configure HBA MSI-X attention conditions to messages 7676 */ 7677 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7678 7679 if (!pmb) { 7680 rc = -ENOMEM; 7681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7682 "0474 Unable to allocate memory for issuing " 7683 "MBOX_CONFIG_MSI command\n"); 7684 goto mem_fail_out; 7685 } 7686 rc = lpfc_config_msi(phba, pmb); 7687 if (rc) 7688 goto mbx_fail_out; 7689 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7690 if (rc != MBX_SUCCESS) { 7691 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7692 "0351 Config MSI mailbox command failed, " 7693 "mbxCmd x%x, mbxStatus x%x\n", 7694 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7695 goto mbx_fail_out; 7696 } 7697 7698 /* Free memory allocated for mailbox command */ 7699 mempool_free(pmb, phba->mbox_mem_pool); 7700 return rc; 7701 7702 mbx_fail_out: 7703 /* Free memory allocated for mailbox command */ 7704 mempool_free(pmb, phba->mbox_mem_pool); 7705 7706 mem_fail_out: 7707 /* free the irq already requested */ 7708 free_irq(phba->msix_entries[1].vector, phba); 7709 7710 irq_fail_out: 7711 /* free the irq already requested */ 7712 free_irq(phba->msix_entries[0].vector, phba); 7713 7714 msi_fail_out: 7715 /* Unconfigure MSI-X capability structure */ 7716 pci_disable_msix(phba->pcidev); 7717 return rc; 7718 } 7719 7720 /** 7721 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7722 * @phba: pointer to lpfc hba data structure. 7723 * 7724 * This routine is invoked to release the MSI-X vectors and then disable the 7725 * MSI-X interrupt mode to device with SLI-3 interface spec. 7726 **/ 7727 static void 7728 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7729 { 7730 int i; 7731 7732 /* Free up MSI-X multi-message vectors */ 7733 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7734 free_irq(phba->msix_entries[i].vector, phba); 7735 /* Disable MSI-X */ 7736 pci_disable_msix(phba->pcidev); 7737 7738 return; 7739 } 7740 7741 /** 7742 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7743 * @phba: pointer to lpfc hba data structure. 7744 * 7745 * This routine is invoked to enable the MSI interrupt mode to device with 7746 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7747 * enable the MSI vector. The device driver is responsible for calling the 7748 * request_irq() to register MSI vector with a interrupt the handler, which 7749 * is done in this function. 7750 * 7751 * Return codes 7752 * 0 - successful 7753 * other values - error 7754 */ 7755 static int 7756 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7757 { 7758 int rc; 7759 7760 rc = pci_enable_msi(phba->pcidev); 7761 if (!rc) 7762 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7763 "0462 PCI enable MSI mode success.\n"); 7764 else { 7765 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7766 "0471 PCI enable MSI mode failed (%d)\n", rc); 7767 return rc; 7768 } 7769 7770 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7771 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7772 if (rc) { 7773 pci_disable_msi(phba->pcidev); 7774 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7775 "0478 MSI request_irq failed (%d)\n", rc); 7776 } 7777 return rc; 7778 } 7779 7780 /** 7781 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7782 * @phba: pointer to lpfc hba data structure. 7783 * 7784 * This routine is invoked to disable the MSI interrupt mode to device with 7785 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7786 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7787 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7788 * its vector. 7789 */ 7790 static void 7791 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7792 { 7793 free_irq(phba->pcidev->irq, phba); 7794 pci_disable_msi(phba->pcidev); 7795 return; 7796 } 7797 7798 /** 7799 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 7800 * @phba: pointer to lpfc hba data structure. 7801 * 7802 * This routine is invoked to enable device interrupt and associate driver's 7803 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 7804 * spec. Depends on the interrupt mode configured to the driver, the driver 7805 * will try to fallback from the configured interrupt mode to an interrupt 7806 * mode which is supported by the platform, kernel, and device in the order 7807 * of: 7808 * MSI-X -> MSI -> IRQ. 7809 * 7810 * Return codes 7811 * 0 - successful 7812 * other values - error 7813 **/ 7814 static uint32_t 7815 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 7816 { 7817 uint32_t intr_mode = LPFC_INTR_ERROR; 7818 int retval; 7819 7820 if (cfg_mode == 2) { 7821 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 7822 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 7823 if (!retval) { 7824 /* Now, try to enable MSI-X interrupt mode */ 7825 retval = lpfc_sli_enable_msix(phba); 7826 if (!retval) { 7827 /* Indicate initialization to MSI-X mode */ 7828 phba->intr_type = MSIX; 7829 intr_mode = 2; 7830 } 7831 } 7832 } 7833 7834 /* Fallback to MSI if MSI-X initialization failed */ 7835 if (cfg_mode >= 1 && phba->intr_type == NONE) { 7836 retval = lpfc_sli_enable_msi(phba); 7837 if (!retval) { 7838 /* Indicate initialization to MSI mode */ 7839 phba->intr_type = MSI; 7840 intr_mode = 1; 7841 } 7842 } 7843 7844 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 7845 if (phba->intr_type == NONE) { 7846 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7847 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7848 if (!retval) { 7849 /* Indicate initialization to INTx mode */ 7850 phba->intr_type = INTx; 7851 intr_mode = 0; 7852 } 7853 } 7854 return intr_mode; 7855 } 7856 7857 /** 7858 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 7859 * @phba: pointer to lpfc hba data structure. 7860 * 7861 * This routine is invoked to disable device interrupt and disassociate the 7862 * driver's interrupt handler(s) from interrupt vector(s) to device with 7863 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 7864 * release the interrupt vector(s) for the message signaled interrupt. 7865 **/ 7866 static void 7867 lpfc_sli_disable_intr(struct lpfc_hba *phba) 7868 { 7869 /* Disable the currently initialized interrupt mode */ 7870 if (phba->intr_type == MSIX) 7871 lpfc_sli_disable_msix(phba); 7872 else if (phba->intr_type == MSI) 7873 lpfc_sli_disable_msi(phba); 7874 else if (phba->intr_type == INTx) 7875 free_irq(phba->pcidev->irq, phba); 7876 7877 /* Reset interrupt management states */ 7878 phba->intr_type = NONE; 7879 phba->sli.slistat.sli_intr = 0; 7880 7881 return; 7882 } 7883 7884 /** 7885 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 7886 * @phba: pointer to lpfc hba data structure. 7887 * 7888 * This routine is invoked to enable the MSI-X interrupt vectors to device 7889 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 7890 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 7891 * enables either all or nothing, depending on the current availability of 7892 * PCI vector resources. The device driver is responsible for calling the 7893 * individual request_irq() to register each MSI-X vector with a interrupt 7894 * handler, which is done in this function. Note that later when device is 7895 * unloading, the driver should always call free_irq() on all MSI-X vectors 7896 * it has done request_irq() on before calling pci_disable_msix(). Failure 7897 * to do so results in a BUG_ON() and a device will be left with MSI-X 7898 * enabled and leaks its vectors. 7899 * 7900 * Return codes 7901 * 0 - successful 7902 * other values - error 7903 **/ 7904 static int 7905 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 7906 { 7907 int vectors, rc, index; 7908 7909 /* Set up MSI-X multi-message vectors */ 7910 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 7911 phba->sli4_hba.msix_entries[index].entry = index; 7912 7913 /* Configure MSI-X capability structure */ 7914 vectors = phba->sli4_hba.cfg_eqn; 7915 enable_msix_vectors: 7916 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 7917 vectors); 7918 if (rc > 1) { 7919 vectors = rc; 7920 goto enable_msix_vectors; 7921 } else if (rc) { 7922 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7923 "0484 PCI enable MSI-X failed (%d)\n", rc); 7924 goto msi_fail_out; 7925 } 7926 7927 /* Log MSI-X vector assignment */ 7928 for (index = 0; index < vectors; index++) 7929 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7930 "0489 MSI-X entry[%d]: vector=x%x " 7931 "message=%d\n", index, 7932 phba->sli4_hba.msix_entries[index].vector, 7933 phba->sli4_hba.msix_entries[index].entry); 7934 /* 7935 * Assign MSI-X vectors to interrupt handlers 7936 */ 7937 if (vectors > 1) 7938 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7939 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 7940 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7941 else 7942 /* All Interrupts need to be handled by one EQ */ 7943 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 7944 &lpfc_sli4_intr_handler, IRQF_SHARED, 7945 LPFC_DRIVER_NAME, phba); 7946 if (rc) { 7947 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7948 "0485 MSI-X slow-path request_irq failed " 7949 "(%d)\n", rc); 7950 goto msi_fail_out; 7951 } 7952 7953 /* The rest of the vector(s) are associated to fast-path handler(s) */ 7954 for (index = 1; index < vectors; index++) { 7955 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 7956 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 7957 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 7958 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 7959 LPFC_FP_DRIVER_HANDLER_NAME, 7960 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7961 if (rc) { 7962 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7963 "0486 MSI-X fast-path (%d) " 7964 "request_irq failed (%d)\n", index, rc); 7965 goto cfg_fail_out; 7966 } 7967 } 7968 phba->sli4_hba.msix_vec_nr = vectors; 7969 7970 return rc; 7971 7972 cfg_fail_out: 7973 /* free the irq already requested */ 7974 for (--index; index >= 1; index--) 7975 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 7976 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 7977 7978 /* free the irq already requested */ 7979 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 7980 7981 msi_fail_out: 7982 /* Unconfigure MSI-X capability structure */ 7983 pci_disable_msix(phba->pcidev); 7984 return rc; 7985 } 7986 7987 /** 7988 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 7989 * @phba: pointer to lpfc hba data structure. 7990 * 7991 * This routine is invoked to release the MSI-X vectors and then disable the 7992 * MSI-X interrupt mode to device with SLI-4 interface spec. 7993 **/ 7994 static void 7995 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 7996 { 7997 int index; 7998 7999 /* Free up MSI-X multi-message vectors */ 8000 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 8001 8002 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 8003 free_irq(phba->sli4_hba.msix_entries[index].vector, 8004 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8005 8006 /* Disable MSI-X */ 8007 pci_disable_msix(phba->pcidev); 8008 8009 return; 8010 } 8011 8012 /** 8013 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8014 * @phba: pointer to lpfc hba data structure. 8015 * 8016 * This routine is invoked to enable the MSI interrupt mode to device with 8017 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8018 * to enable the MSI vector. The device driver is responsible for calling 8019 * the request_irq() to register MSI vector with a interrupt the handler, 8020 * which is done in this function. 8021 * 8022 * Return codes 8023 * 0 - successful 8024 * other values - error 8025 **/ 8026 static int 8027 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8028 { 8029 int rc, index; 8030 8031 rc = pci_enable_msi(phba->pcidev); 8032 if (!rc) 8033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8034 "0487 PCI enable MSI mode success.\n"); 8035 else { 8036 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8037 "0488 PCI enable MSI mode failed (%d)\n", rc); 8038 return rc; 8039 } 8040 8041 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8042 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8043 if (rc) { 8044 pci_disable_msi(phba->pcidev); 8045 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8046 "0490 MSI request_irq failed (%d)\n", rc); 8047 return rc; 8048 } 8049 8050 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 8051 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8052 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8053 } 8054 8055 return 0; 8056 } 8057 8058 /** 8059 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8060 * @phba: pointer to lpfc hba data structure. 8061 * 8062 * This routine is invoked to disable the MSI interrupt mode to device with 8063 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8064 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8065 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8066 * its vector. 8067 **/ 8068 static void 8069 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8070 { 8071 free_irq(phba->pcidev->irq, phba); 8072 pci_disable_msi(phba->pcidev); 8073 return; 8074 } 8075 8076 /** 8077 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8078 * @phba: pointer to lpfc hba data structure. 8079 * 8080 * This routine is invoked to enable device interrupt and associate driver's 8081 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8082 * interface spec. Depends on the interrupt mode configured to the driver, 8083 * the driver will try to fallback from the configured interrupt mode to an 8084 * interrupt mode which is supported by the platform, kernel, and device in 8085 * the order of: 8086 * MSI-X -> MSI -> IRQ. 8087 * 8088 * Return codes 8089 * 0 - successful 8090 * other values - error 8091 **/ 8092 static uint32_t 8093 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8094 { 8095 uint32_t intr_mode = LPFC_INTR_ERROR; 8096 int retval, index; 8097 8098 if (cfg_mode == 2) { 8099 /* Preparation before conf_msi mbox cmd */ 8100 retval = 0; 8101 if (!retval) { 8102 /* Now, try to enable MSI-X interrupt mode */ 8103 retval = lpfc_sli4_enable_msix(phba); 8104 if (!retval) { 8105 /* Indicate initialization to MSI-X mode */ 8106 phba->intr_type = MSIX; 8107 intr_mode = 2; 8108 } 8109 } 8110 } 8111 8112 /* Fallback to MSI if MSI-X initialization failed */ 8113 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8114 retval = lpfc_sli4_enable_msi(phba); 8115 if (!retval) { 8116 /* Indicate initialization to MSI mode */ 8117 phba->intr_type = MSI; 8118 intr_mode = 1; 8119 } 8120 } 8121 8122 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8123 if (phba->intr_type == NONE) { 8124 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8125 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8126 if (!retval) { 8127 /* Indicate initialization to INTx mode */ 8128 phba->intr_type = INTx; 8129 intr_mode = 0; 8130 for (index = 0; index < phba->cfg_fcp_eq_count; 8131 index++) { 8132 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8133 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8134 } 8135 } 8136 } 8137 return intr_mode; 8138 } 8139 8140 /** 8141 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8142 * @phba: pointer to lpfc hba data structure. 8143 * 8144 * This routine is invoked to disable device interrupt and disassociate 8145 * the driver's interrupt handler(s) from interrupt vector(s) to device 8146 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8147 * will release the interrupt vector(s) for the message signaled interrupt. 8148 **/ 8149 static void 8150 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8151 { 8152 /* Disable the currently initialized interrupt mode */ 8153 if (phba->intr_type == MSIX) 8154 lpfc_sli4_disable_msix(phba); 8155 else if (phba->intr_type == MSI) 8156 lpfc_sli4_disable_msi(phba); 8157 else if (phba->intr_type == INTx) 8158 free_irq(phba->pcidev->irq, phba); 8159 8160 /* Reset interrupt management states */ 8161 phba->intr_type = NONE; 8162 phba->sli.slistat.sli_intr = 0; 8163 8164 return; 8165 } 8166 8167 /** 8168 * lpfc_unset_hba - Unset SLI3 hba device initialization 8169 * @phba: pointer to lpfc hba data structure. 8170 * 8171 * This routine is invoked to unset the HBA device initialization steps to 8172 * a device with SLI-3 interface spec. 8173 **/ 8174 static void 8175 lpfc_unset_hba(struct lpfc_hba *phba) 8176 { 8177 struct lpfc_vport *vport = phba->pport; 8178 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8179 8180 spin_lock_irq(shost->host_lock); 8181 vport->load_flag |= FC_UNLOADING; 8182 spin_unlock_irq(shost->host_lock); 8183 8184 kfree(phba->vpi_bmask); 8185 kfree(phba->vpi_ids); 8186 8187 lpfc_stop_hba_timers(phba); 8188 8189 phba->pport->work_port_events = 0; 8190 8191 lpfc_sli_hba_down(phba); 8192 8193 lpfc_sli_brdrestart(phba); 8194 8195 lpfc_sli_disable_intr(phba); 8196 8197 return; 8198 } 8199 8200 /** 8201 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8202 * @phba: pointer to lpfc hba data structure. 8203 * 8204 * This routine is invoked to unset the HBA device initialization steps to 8205 * a device with SLI-4 interface spec. 8206 **/ 8207 static void 8208 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8209 { 8210 struct lpfc_vport *vport = phba->pport; 8211 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8212 8213 spin_lock_irq(shost->host_lock); 8214 vport->load_flag |= FC_UNLOADING; 8215 spin_unlock_irq(shost->host_lock); 8216 8217 phba->pport->work_port_events = 0; 8218 8219 /* Stop the SLI4 device port */ 8220 lpfc_stop_port(phba); 8221 8222 lpfc_sli4_disable_intr(phba); 8223 8224 /* Reset SLI4 HBA FCoE function */ 8225 lpfc_pci_function_reset(phba); 8226 lpfc_sli4_queue_destroy(phba); 8227 8228 return; 8229 } 8230 8231 /** 8232 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8233 * @phba: Pointer to HBA context object. 8234 * 8235 * This function is called in the SLI4 code path to wait for completion 8236 * of device's XRIs exchange busy. It will check the XRI exchange busy 8237 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8238 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8239 * I/Os every 30 seconds, log error message, and wait forever. Only when 8240 * all XRI exchange busy complete, the driver unload shall proceed with 8241 * invoking the function reset ioctl mailbox command to the CNA and the 8242 * the rest of the driver unload resource release. 8243 **/ 8244 static void 8245 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8246 { 8247 int wait_time = 0; 8248 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8249 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8250 8251 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8252 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8253 if (!fcp_xri_cmpl) 8254 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8255 "2877 FCP XRI exchange busy " 8256 "wait time: %d seconds.\n", 8257 wait_time/1000); 8258 if (!els_xri_cmpl) 8259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8260 "2878 ELS XRI exchange busy " 8261 "wait time: %d seconds.\n", 8262 wait_time/1000); 8263 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8264 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8265 } else { 8266 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8267 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8268 } 8269 fcp_xri_cmpl = 8270 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8271 els_xri_cmpl = 8272 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8273 } 8274 } 8275 8276 /** 8277 * lpfc_sli4_hba_unset - Unset the fcoe hba 8278 * @phba: Pointer to HBA context object. 8279 * 8280 * This function is called in the SLI4 code path to reset the HBA's FCoE 8281 * function. The caller is not required to hold any lock. This routine 8282 * issues PCI function reset mailbox command to reset the FCoE function. 8283 * At the end of the function, it calls lpfc_hba_down_post function to 8284 * free any pending commands. 8285 **/ 8286 static void 8287 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8288 { 8289 int wait_cnt = 0; 8290 LPFC_MBOXQ_t *mboxq; 8291 struct pci_dev *pdev = phba->pcidev; 8292 8293 lpfc_stop_hba_timers(phba); 8294 phba->sli4_hba.intr_enable = 0; 8295 8296 /* 8297 * Gracefully wait out the potential current outstanding asynchronous 8298 * mailbox command. 8299 */ 8300 8301 /* First, block any pending async mailbox command from posted */ 8302 spin_lock_irq(&phba->hbalock); 8303 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8304 spin_unlock_irq(&phba->hbalock); 8305 /* Now, trying to wait it out if we can */ 8306 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8307 msleep(10); 8308 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8309 break; 8310 } 8311 /* Forcefully release the outstanding mailbox command if timed out */ 8312 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8313 spin_lock_irq(&phba->hbalock); 8314 mboxq = phba->sli.mbox_active; 8315 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8316 __lpfc_mbox_cmpl_put(phba, mboxq); 8317 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8318 phba->sli.mbox_active = NULL; 8319 spin_unlock_irq(&phba->hbalock); 8320 } 8321 8322 /* Abort all iocbs associated with the hba */ 8323 lpfc_sli_hba_iocb_abort(phba); 8324 8325 /* Wait for completion of device XRI exchange busy */ 8326 lpfc_sli4_xri_exchange_busy_wait(phba); 8327 8328 /* Disable PCI subsystem interrupt */ 8329 lpfc_sli4_disable_intr(phba); 8330 8331 /* Disable SR-IOV if enabled */ 8332 if (phba->cfg_sriov_nr_virtfn) 8333 pci_disable_sriov(pdev); 8334 8335 /* Stop kthread signal shall trigger work_done one more time */ 8336 kthread_stop(phba->worker_thread); 8337 8338 /* Reset SLI4 HBA FCoE function */ 8339 lpfc_pci_function_reset(phba); 8340 lpfc_sli4_queue_destroy(phba); 8341 8342 /* Stop the SLI4 device port */ 8343 phba->pport->work_port_events = 0; 8344 } 8345 8346 /** 8347 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8348 * @phba: Pointer to HBA context object. 8349 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8350 * 8351 * This function is called in the SLI4 code path to read the port's 8352 * sli4 capabilities. 8353 * 8354 * This function may be be called from any context that can block-wait 8355 * for the completion. The expectation is that this routine is called 8356 * typically from probe_one or from the online routine. 8357 **/ 8358 int 8359 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8360 { 8361 int rc; 8362 struct lpfc_mqe *mqe; 8363 struct lpfc_pc_sli4_params *sli4_params; 8364 uint32_t mbox_tmo; 8365 8366 rc = 0; 8367 mqe = &mboxq->u.mqe; 8368 8369 /* Read the port's SLI4 Parameters port capabilities */ 8370 lpfc_pc_sli4_params(mboxq); 8371 if (!phba->sli4_hba.intr_enable) 8372 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8373 else { 8374 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8375 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8376 } 8377 8378 if (unlikely(rc)) 8379 return 1; 8380 8381 sli4_params = &phba->sli4_hba.pc_sli4_params; 8382 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8383 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8384 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8385 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8386 &mqe->un.sli4_params); 8387 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8388 &mqe->un.sli4_params); 8389 sli4_params->proto_types = mqe->un.sli4_params.word3; 8390 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8391 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8392 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8393 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8394 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8395 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8396 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8397 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8398 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8399 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8400 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8401 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8402 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8403 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8404 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8405 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8406 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8407 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8408 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8409 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8410 8411 /* Make sure that sge_supp_len can be handled by the driver */ 8412 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8413 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8414 8415 return rc; 8416 } 8417 8418 /** 8419 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8420 * @phba: Pointer to HBA context object. 8421 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8422 * 8423 * This function is called in the SLI4 code path to read the port's 8424 * sli4 capabilities. 8425 * 8426 * This function may be be called from any context that can block-wait 8427 * for the completion. The expectation is that this routine is called 8428 * typically from probe_one or from the online routine. 8429 **/ 8430 int 8431 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8432 { 8433 int rc; 8434 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8435 struct lpfc_pc_sli4_params *sli4_params; 8436 uint32_t mbox_tmo; 8437 int length; 8438 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8439 8440 /* 8441 * By default, the driver assumes the SLI4 port requires RPI 8442 * header postings. The SLI4_PARAM response will correct this 8443 * assumption. 8444 */ 8445 phba->sli4_hba.rpi_hdrs_in_use = 1; 8446 8447 /* Read the port's SLI4 Config Parameters */ 8448 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8449 sizeof(struct lpfc_sli4_cfg_mhdr)); 8450 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8451 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8452 length, LPFC_SLI4_MBX_EMBED); 8453 if (!phba->sli4_hba.intr_enable) 8454 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8455 else { 8456 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8457 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8458 } 8459 if (unlikely(rc)) 8460 return rc; 8461 sli4_params = &phba->sli4_hba.pc_sli4_params; 8462 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8463 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8464 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8465 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8466 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8467 mbx_sli4_parameters); 8468 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8469 mbx_sli4_parameters); 8470 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8471 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8472 else 8473 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8474 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8475 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8476 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8477 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8478 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8479 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8480 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8481 mbx_sli4_parameters); 8482 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8483 mbx_sli4_parameters); 8484 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8485 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8486 8487 /* Make sure that sge_supp_len can be handled by the driver */ 8488 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8489 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8490 8491 return 0; 8492 } 8493 8494 /** 8495 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8496 * @pdev: pointer to PCI device 8497 * @pid: pointer to PCI device identifier 8498 * 8499 * This routine is to be called to attach a device with SLI-3 interface spec 8500 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8501 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8502 * information of the device and driver to see if the driver state that it can 8503 * support this kind of device. If the match is successful, the driver core 8504 * invokes this routine. If this routine determines it can claim the HBA, it 8505 * does all the initialization that it needs to do to handle the HBA properly. 8506 * 8507 * Return code 8508 * 0 - driver can claim the device 8509 * negative value - driver can not claim the device 8510 **/ 8511 static int __devinit 8512 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8513 { 8514 struct lpfc_hba *phba; 8515 struct lpfc_vport *vport = NULL; 8516 struct Scsi_Host *shost = NULL; 8517 int error; 8518 uint32_t cfg_mode, intr_mode; 8519 8520 /* Allocate memory for HBA structure */ 8521 phba = lpfc_hba_alloc(pdev); 8522 if (!phba) 8523 return -ENOMEM; 8524 8525 /* Perform generic PCI device enabling operation */ 8526 error = lpfc_enable_pci_dev(phba); 8527 if (error) 8528 goto out_free_phba; 8529 8530 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8531 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8532 if (error) 8533 goto out_disable_pci_dev; 8534 8535 /* Set up SLI-3 specific device PCI memory space */ 8536 error = lpfc_sli_pci_mem_setup(phba); 8537 if (error) { 8538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8539 "1402 Failed to set up pci memory space.\n"); 8540 goto out_disable_pci_dev; 8541 } 8542 8543 /* Set up phase-1 common device driver resources */ 8544 error = lpfc_setup_driver_resource_phase1(phba); 8545 if (error) { 8546 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8547 "1403 Failed to set up driver resource.\n"); 8548 goto out_unset_pci_mem_s3; 8549 } 8550 8551 /* Set up SLI-3 specific device driver resources */ 8552 error = lpfc_sli_driver_resource_setup(phba); 8553 if (error) { 8554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8555 "1404 Failed to set up driver resource.\n"); 8556 goto out_unset_pci_mem_s3; 8557 } 8558 8559 /* Initialize and populate the iocb list per host */ 8560 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8561 if (error) { 8562 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8563 "1405 Failed to initialize iocb list.\n"); 8564 goto out_unset_driver_resource_s3; 8565 } 8566 8567 /* Set up common device driver resources */ 8568 error = lpfc_setup_driver_resource_phase2(phba); 8569 if (error) { 8570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8571 "1406 Failed to set up driver resource.\n"); 8572 goto out_free_iocb_list; 8573 } 8574 8575 /* Get the default values for Model Name and Description */ 8576 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8577 8578 /* Create SCSI host to the physical port */ 8579 error = lpfc_create_shost(phba); 8580 if (error) { 8581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8582 "1407 Failed to create scsi host.\n"); 8583 goto out_unset_driver_resource; 8584 } 8585 8586 /* Configure sysfs attributes */ 8587 vport = phba->pport; 8588 error = lpfc_alloc_sysfs_attr(vport); 8589 if (error) { 8590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8591 "1476 Failed to allocate sysfs attr\n"); 8592 goto out_destroy_shost; 8593 } 8594 8595 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8596 /* Now, trying to enable interrupt and bring up the device */ 8597 cfg_mode = phba->cfg_use_msi; 8598 while (true) { 8599 /* Put device to a known state before enabling interrupt */ 8600 lpfc_stop_port(phba); 8601 /* Configure and enable interrupt */ 8602 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8603 if (intr_mode == LPFC_INTR_ERROR) { 8604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8605 "0431 Failed to enable interrupt.\n"); 8606 error = -ENODEV; 8607 goto out_free_sysfs_attr; 8608 } 8609 /* SLI-3 HBA setup */ 8610 if (lpfc_sli_hba_setup(phba)) { 8611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8612 "1477 Failed to set up hba\n"); 8613 error = -ENODEV; 8614 goto out_remove_device; 8615 } 8616 8617 /* Wait 50ms for the interrupts of previous mailbox commands */ 8618 msleep(50); 8619 /* Check active interrupts on message signaled interrupts */ 8620 if (intr_mode == 0 || 8621 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8622 /* Log the current active interrupt mode */ 8623 phba->intr_mode = intr_mode; 8624 lpfc_log_intr_mode(phba, intr_mode); 8625 break; 8626 } else { 8627 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8628 "0447 Configure interrupt mode (%d) " 8629 "failed active interrupt test.\n", 8630 intr_mode); 8631 /* Disable the current interrupt mode */ 8632 lpfc_sli_disable_intr(phba); 8633 /* Try next level of interrupt mode */ 8634 cfg_mode = --intr_mode; 8635 } 8636 } 8637 8638 /* Perform post initialization setup */ 8639 lpfc_post_init_setup(phba); 8640 8641 /* Check if there are static vports to be created. */ 8642 lpfc_create_static_vport(phba); 8643 8644 return 0; 8645 8646 out_remove_device: 8647 lpfc_unset_hba(phba); 8648 out_free_sysfs_attr: 8649 lpfc_free_sysfs_attr(vport); 8650 out_destroy_shost: 8651 lpfc_destroy_shost(phba); 8652 out_unset_driver_resource: 8653 lpfc_unset_driver_resource_phase2(phba); 8654 out_free_iocb_list: 8655 lpfc_free_iocb_list(phba); 8656 out_unset_driver_resource_s3: 8657 lpfc_sli_driver_resource_unset(phba); 8658 out_unset_pci_mem_s3: 8659 lpfc_sli_pci_mem_unset(phba); 8660 out_disable_pci_dev: 8661 lpfc_disable_pci_dev(phba); 8662 if (shost) 8663 scsi_host_put(shost); 8664 out_free_phba: 8665 lpfc_hba_free(phba); 8666 return error; 8667 } 8668 8669 /** 8670 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8671 * @pdev: pointer to PCI device 8672 * 8673 * This routine is to be called to disattach a device with SLI-3 interface 8674 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8675 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8676 * device to be removed from the PCI subsystem properly. 8677 **/ 8678 static void __devexit 8679 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8680 { 8681 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8682 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8683 struct lpfc_vport **vports; 8684 struct lpfc_hba *phba = vport->phba; 8685 int i; 8686 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8687 8688 spin_lock_irq(&phba->hbalock); 8689 vport->load_flag |= FC_UNLOADING; 8690 spin_unlock_irq(&phba->hbalock); 8691 8692 lpfc_free_sysfs_attr(vport); 8693 8694 /* Release all the vports against this physical port */ 8695 vports = lpfc_create_vport_work_array(phba); 8696 if (vports != NULL) 8697 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 8698 fc_vport_terminate(vports[i]->fc_vport); 8699 lpfc_destroy_vport_work_array(phba, vports); 8700 8701 /* Remove FC host and then SCSI host with the physical port */ 8702 fc_remove_host(shost); 8703 scsi_remove_host(shost); 8704 lpfc_cleanup(vport); 8705 8706 /* 8707 * Bring down the SLI Layer. This step disable all interrupts, 8708 * clears the rings, discards all mailbox commands, and resets 8709 * the HBA. 8710 */ 8711 8712 /* HBA interrupt will be disabled after this call */ 8713 lpfc_sli_hba_down(phba); 8714 /* Stop kthread signal shall trigger work_done one more time */ 8715 kthread_stop(phba->worker_thread); 8716 /* Final cleanup of txcmplq and reset the HBA */ 8717 lpfc_sli_brdrestart(phba); 8718 8719 kfree(phba->vpi_bmask); 8720 kfree(phba->vpi_ids); 8721 8722 lpfc_stop_hba_timers(phba); 8723 spin_lock_irq(&phba->hbalock); 8724 list_del_init(&vport->listentry); 8725 spin_unlock_irq(&phba->hbalock); 8726 8727 lpfc_debugfs_terminate(vport); 8728 8729 /* Disable SR-IOV if enabled */ 8730 if (phba->cfg_sriov_nr_virtfn) 8731 pci_disable_sriov(pdev); 8732 8733 /* Disable interrupt */ 8734 lpfc_sli_disable_intr(phba); 8735 8736 pci_set_drvdata(pdev, NULL); 8737 scsi_host_put(shost); 8738 8739 /* 8740 * Call scsi_free before mem_free since scsi bufs are released to their 8741 * corresponding pools here. 8742 */ 8743 lpfc_scsi_free(phba); 8744 lpfc_mem_free_all(phba); 8745 8746 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8747 phba->hbqslimp.virt, phba->hbqslimp.phys); 8748 8749 /* Free resources associated with SLI2 interface */ 8750 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8751 phba->slim2p.virt, phba->slim2p.phys); 8752 8753 /* unmap adapter SLIM and Control Registers */ 8754 iounmap(phba->ctrl_regs_memmap_p); 8755 iounmap(phba->slim_memmap_p); 8756 8757 lpfc_hba_free(phba); 8758 8759 pci_release_selected_regions(pdev, bars); 8760 pci_disable_device(pdev); 8761 } 8762 8763 /** 8764 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8765 * @pdev: pointer to PCI device 8766 * @msg: power management message 8767 * 8768 * This routine is to be called from the kernel's PCI subsystem to support 8769 * system Power Management (PM) to device with SLI-3 interface spec. When 8770 * PM invokes this method, it quiesces the device by stopping the driver's 8771 * worker thread for the device, turning off device's interrupt and DMA, 8772 * and bring the device offline. Note that as the driver implements the 8773 * minimum PM requirements to a power-aware driver's PM support for the 8774 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8775 * to the suspend() method call will be treated as SUSPEND and the driver will 8776 * fully reinitialize its device during resume() method call, the driver will 8777 * set device to PCI_D3hot state in PCI config space instead of setting it 8778 * according to the @msg provided by the PM. 8779 * 8780 * Return code 8781 * 0 - driver suspended the device 8782 * Error otherwise 8783 **/ 8784 static int 8785 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8786 { 8787 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8788 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8789 8790 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8791 "0473 PCI device Power Management suspend.\n"); 8792 8793 /* Bring down the device */ 8794 lpfc_offline_prep(phba); 8795 lpfc_offline(phba); 8796 kthread_stop(phba->worker_thread); 8797 8798 /* Disable interrupt from device */ 8799 lpfc_sli_disable_intr(phba); 8800 8801 /* Save device state to PCI config space */ 8802 pci_save_state(pdev); 8803 pci_set_power_state(pdev, PCI_D3hot); 8804 8805 return 0; 8806 } 8807 8808 /** 8809 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 8810 * @pdev: pointer to PCI device 8811 * 8812 * This routine is to be called from the kernel's PCI subsystem to support 8813 * system Power Management (PM) to device with SLI-3 interface spec. When PM 8814 * invokes this method, it restores the device's PCI config space state and 8815 * fully reinitializes the device and brings it online. Note that as the 8816 * driver implements the minimum PM requirements to a power-aware driver's 8817 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 8818 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 8819 * driver will fully reinitialize its device during resume() method call, 8820 * the device will be set to PCI_D0 directly in PCI config space before 8821 * restoring the state. 8822 * 8823 * Return code 8824 * 0 - driver suspended the device 8825 * Error otherwise 8826 **/ 8827 static int 8828 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 8829 { 8830 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8831 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8832 uint32_t intr_mode; 8833 int error; 8834 8835 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8836 "0452 PCI device Power Management resume.\n"); 8837 8838 /* Restore device state from PCI config space */ 8839 pci_set_power_state(pdev, PCI_D0); 8840 pci_restore_state(pdev); 8841 8842 /* 8843 * As the new kernel behavior of pci_restore_state() API call clears 8844 * device saved_state flag, need to save the restored state again. 8845 */ 8846 pci_save_state(pdev); 8847 8848 if (pdev->is_busmaster) 8849 pci_set_master(pdev); 8850 8851 /* Startup the kernel thread for this host adapter. */ 8852 phba->worker_thread = kthread_run(lpfc_do_work, phba, 8853 "lpfc_worker_%d", phba->brd_no); 8854 if (IS_ERR(phba->worker_thread)) { 8855 error = PTR_ERR(phba->worker_thread); 8856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8857 "0434 PM resume failed to start worker " 8858 "thread: error=x%x.\n", error); 8859 return error; 8860 } 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 "0430 PM resume Failed to enable interrupt\n"); 8867 return -EIO; 8868 } else 8869 phba->intr_mode = intr_mode; 8870 8871 /* Restart HBA and bring it online */ 8872 lpfc_sli_brdrestart(phba); 8873 lpfc_online(phba); 8874 8875 /* Log the current active interrupt mode */ 8876 lpfc_log_intr_mode(phba, phba->intr_mode); 8877 8878 return 0; 8879 } 8880 8881 /** 8882 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 8883 * @phba: pointer to lpfc hba data structure. 8884 * 8885 * This routine is called to prepare the SLI3 device for PCI slot recover. It 8886 * aborts all the outstanding SCSI I/Os to the pci device. 8887 **/ 8888 static void 8889 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 8890 { 8891 struct lpfc_sli *psli = &phba->sli; 8892 struct lpfc_sli_ring *pring; 8893 8894 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8895 "2723 PCI channel I/O abort preparing for recovery\n"); 8896 8897 /* 8898 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 8899 * and let the SCSI mid-layer to retry them to recover. 8900 */ 8901 pring = &psli->ring[psli->fcp_ring]; 8902 lpfc_sli_abort_iocb_ring(phba, pring); 8903 } 8904 8905 /** 8906 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 8907 * @phba: pointer to lpfc hba data structure. 8908 * 8909 * This routine is called to prepare the SLI3 device for PCI slot reset. It 8910 * disables the device interrupt and pci device, and aborts the internal FCP 8911 * pending I/Os. 8912 **/ 8913 static void 8914 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 8915 { 8916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8917 "2710 PCI channel disable preparing for reset\n"); 8918 8919 /* Block any management I/Os to the device */ 8920 lpfc_block_mgmt_io(phba); 8921 8922 /* Block all SCSI devices' I/Os on the host */ 8923 lpfc_scsi_dev_block(phba); 8924 8925 /* stop all timers */ 8926 lpfc_stop_hba_timers(phba); 8927 8928 /* Disable interrupt and pci device */ 8929 lpfc_sli_disable_intr(phba); 8930 pci_disable_device(phba->pcidev); 8931 8932 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 8933 lpfc_sli_flush_fcp_rings(phba); 8934 } 8935 8936 /** 8937 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 8938 * @phba: pointer to lpfc hba data structure. 8939 * 8940 * This routine is called to prepare the SLI3 device for PCI slot permanently 8941 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 8942 * pending I/Os. 8943 **/ 8944 static void 8945 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 8946 { 8947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8948 "2711 PCI channel permanent disable for failure\n"); 8949 /* Block all SCSI devices' I/Os on the host */ 8950 lpfc_scsi_dev_block(phba); 8951 8952 /* stop all timers */ 8953 lpfc_stop_hba_timers(phba); 8954 8955 /* Clean up all driver's outstanding SCSI I/Os */ 8956 lpfc_sli_flush_fcp_rings(phba); 8957 } 8958 8959 /** 8960 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 8961 * @pdev: pointer to PCI device. 8962 * @state: the current PCI connection state. 8963 * 8964 * This routine is called from the PCI subsystem for I/O error handling to 8965 * device with SLI-3 interface spec. This function is called by the PCI 8966 * subsystem after a PCI bus error affecting this device has been detected. 8967 * When this function is invoked, it will need to stop all the I/Os and 8968 * interrupt(s) to the device. Once that is done, it will return 8969 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 8970 * as desired. 8971 * 8972 * Return codes 8973 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 8974 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 8975 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 8976 **/ 8977 static pci_ers_result_t 8978 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 8979 { 8980 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8981 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8982 8983 switch (state) { 8984 case pci_channel_io_normal: 8985 /* Non-fatal error, prepare for recovery */ 8986 lpfc_sli_prep_dev_for_recover(phba); 8987 return PCI_ERS_RESULT_CAN_RECOVER; 8988 case pci_channel_io_frozen: 8989 /* Fatal error, prepare for slot reset */ 8990 lpfc_sli_prep_dev_for_reset(phba); 8991 return PCI_ERS_RESULT_NEED_RESET; 8992 case pci_channel_io_perm_failure: 8993 /* Permanent failure, prepare for device down */ 8994 lpfc_sli_prep_dev_for_perm_failure(phba); 8995 return PCI_ERS_RESULT_DISCONNECT; 8996 default: 8997 /* Unknown state, prepare and request slot reset */ 8998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8999 "0472 Unknown PCI error state: x%x\n", state); 9000 lpfc_sli_prep_dev_for_reset(phba); 9001 return PCI_ERS_RESULT_NEED_RESET; 9002 } 9003 } 9004 9005 /** 9006 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9007 * @pdev: pointer to PCI device. 9008 * 9009 * This routine is called from the PCI subsystem for error handling to 9010 * device with SLI-3 interface spec. This is called after PCI bus has been 9011 * reset to restart the PCI card from scratch, as if from a cold-boot. 9012 * During the PCI subsystem error recovery, after driver returns 9013 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9014 * recovery and then call this routine before calling the .resume method 9015 * to recover the device. This function will initialize the HBA device, 9016 * enable the interrupt, but it will just put the HBA to offline state 9017 * without passing any I/O traffic. 9018 * 9019 * Return codes 9020 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9021 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9022 */ 9023 static pci_ers_result_t 9024 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9025 { 9026 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9027 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9028 struct lpfc_sli *psli = &phba->sli; 9029 uint32_t intr_mode; 9030 9031 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9032 if (pci_enable_device_mem(pdev)) { 9033 printk(KERN_ERR "lpfc: Cannot re-enable " 9034 "PCI device after reset.\n"); 9035 return PCI_ERS_RESULT_DISCONNECT; 9036 } 9037 9038 pci_restore_state(pdev); 9039 9040 /* 9041 * As the new kernel behavior of pci_restore_state() API call clears 9042 * device saved_state flag, need to save the restored state again. 9043 */ 9044 pci_save_state(pdev); 9045 9046 if (pdev->is_busmaster) 9047 pci_set_master(pdev); 9048 9049 spin_lock_irq(&phba->hbalock); 9050 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9051 spin_unlock_irq(&phba->hbalock); 9052 9053 /* Configure and enable interrupt */ 9054 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9055 if (intr_mode == LPFC_INTR_ERROR) { 9056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9057 "0427 Cannot re-enable interrupt after " 9058 "slot reset.\n"); 9059 return PCI_ERS_RESULT_DISCONNECT; 9060 } else 9061 phba->intr_mode = intr_mode; 9062 9063 /* Take device offline, it will perform cleanup */ 9064 lpfc_offline_prep(phba); 9065 lpfc_offline(phba); 9066 lpfc_sli_brdrestart(phba); 9067 9068 /* Log the current active interrupt mode */ 9069 lpfc_log_intr_mode(phba, phba->intr_mode); 9070 9071 return PCI_ERS_RESULT_RECOVERED; 9072 } 9073 9074 /** 9075 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9076 * @pdev: pointer to PCI device 9077 * 9078 * This routine is called from the PCI subsystem for error handling to device 9079 * with SLI-3 interface spec. It is called when kernel error recovery tells 9080 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9081 * error recovery. After this call, traffic can start to flow from this device 9082 * again. 9083 */ 9084 static void 9085 lpfc_io_resume_s3(struct pci_dev *pdev) 9086 { 9087 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9088 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9089 9090 /* Bring device online, it will be no-op for non-fatal error resume */ 9091 lpfc_online(phba); 9092 9093 /* Clean up Advanced Error Reporting (AER) if needed */ 9094 if (phba->hba_flag & HBA_AER_ENABLED) 9095 pci_cleanup_aer_uncorrect_error_status(pdev); 9096 } 9097 9098 /** 9099 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9100 * @phba: pointer to lpfc hba data structure. 9101 * 9102 * returns the number of ELS/CT IOCBs to reserve 9103 **/ 9104 int 9105 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9106 { 9107 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9108 9109 if (phba->sli_rev == LPFC_SLI_REV4) { 9110 if (max_xri <= 100) 9111 return 10; 9112 else if (max_xri <= 256) 9113 return 25; 9114 else if (max_xri <= 512) 9115 return 50; 9116 else if (max_xri <= 1024) 9117 return 100; 9118 else 9119 return 150; 9120 } else 9121 return 0; 9122 } 9123 9124 /** 9125 * lpfc_write_firmware - attempt to write a firmware image to the port 9126 * @phba: pointer to lpfc hba data structure. 9127 * @fw: pointer to firmware image returned from request_firmware. 9128 * 9129 * returns the number of bytes written if write is successful. 9130 * returns a negative error value if there were errors. 9131 * returns 0 if firmware matches currently active firmware on port. 9132 **/ 9133 int 9134 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 9135 { 9136 char fwrev[FW_REV_STR_SIZE]; 9137 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 9138 struct list_head dma_buffer_list; 9139 int i, rc = 0; 9140 struct lpfc_dmabuf *dmabuf, *next; 9141 uint32_t offset = 0, temp_offset = 0; 9142 9143 INIT_LIST_HEAD(&dma_buffer_list); 9144 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9145 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9146 LPFC_FILE_TYPE_GROUP) || 9147 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9148 (be32_to_cpu(image->size) != fw->size)) { 9149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9150 "3022 Invalid FW image found. " 9151 "Magic:%x Type:%x ID:%x\n", 9152 be32_to_cpu(image->magic_number), 9153 bf_get_be32(lpfc_grp_hdr_file_type, image), 9154 bf_get_be32(lpfc_grp_hdr_id, image)); 9155 return -EINVAL; 9156 } 9157 lpfc_decode_firmware_rev(phba, fwrev, 1); 9158 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9160 "3023 Updating Firmware. Current Version:%s " 9161 "New Version:%s\n", 9162 fwrev, image->revision); 9163 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9164 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9165 GFP_KERNEL); 9166 if (!dmabuf) { 9167 rc = -ENOMEM; 9168 goto out; 9169 } 9170 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9171 SLI4_PAGE_SIZE, 9172 &dmabuf->phys, 9173 GFP_KERNEL); 9174 if (!dmabuf->virt) { 9175 kfree(dmabuf); 9176 rc = -ENOMEM; 9177 goto out; 9178 } 9179 list_add_tail(&dmabuf->list, &dma_buffer_list); 9180 } 9181 while (offset < fw->size) { 9182 temp_offset = offset; 9183 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9184 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9185 memcpy(dmabuf->virt, 9186 fw->data + temp_offset, 9187 fw->size - temp_offset); 9188 temp_offset = fw->size; 9189 break; 9190 } 9191 memcpy(dmabuf->virt, fw->data + temp_offset, 9192 SLI4_PAGE_SIZE); 9193 temp_offset += SLI4_PAGE_SIZE; 9194 } 9195 rc = lpfc_wr_object(phba, &dma_buffer_list, 9196 (fw->size - offset), &offset); 9197 if (rc) { 9198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9199 "3024 Firmware update failed. " 9200 "%d\n", rc); 9201 goto out; 9202 } 9203 } 9204 rc = offset; 9205 } 9206 out: 9207 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9208 list_del(&dmabuf->list); 9209 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9210 dmabuf->virt, dmabuf->phys); 9211 kfree(dmabuf); 9212 } 9213 return rc; 9214 } 9215 9216 /** 9217 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9218 * @pdev: pointer to PCI device 9219 * @pid: pointer to PCI device identifier 9220 * 9221 * This routine is called from the kernel's PCI subsystem to device with 9222 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9223 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9224 * information of the device and driver to see if the driver state that it 9225 * can support this kind of device. If the match is successful, the driver 9226 * core invokes this routine. If this routine determines it can claim the HBA, 9227 * it does all the initialization that it needs to do to handle the HBA 9228 * properly. 9229 * 9230 * Return code 9231 * 0 - driver can claim the device 9232 * negative value - driver can not claim the device 9233 **/ 9234 static int __devinit 9235 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9236 { 9237 struct lpfc_hba *phba; 9238 struct lpfc_vport *vport = NULL; 9239 struct Scsi_Host *shost = NULL; 9240 int error; 9241 uint32_t cfg_mode, intr_mode; 9242 int mcnt; 9243 int adjusted_fcp_eq_count; 9244 const struct firmware *fw; 9245 uint8_t file_name[16]; 9246 9247 /* Allocate memory for HBA structure */ 9248 phba = lpfc_hba_alloc(pdev); 9249 if (!phba) 9250 return -ENOMEM; 9251 9252 /* Perform generic PCI device enabling operation */ 9253 error = lpfc_enable_pci_dev(phba); 9254 if (error) 9255 goto out_free_phba; 9256 9257 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9258 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9259 if (error) 9260 goto out_disable_pci_dev; 9261 9262 /* Set up SLI-4 specific device PCI memory space */ 9263 error = lpfc_sli4_pci_mem_setup(phba); 9264 if (error) { 9265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9266 "1410 Failed to set up pci memory space.\n"); 9267 goto out_disable_pci_dev; 9268 } 9269 9270 /* Set up phase-1 common device driver resources */ 9271 error = lpfc_setup_driver_resource_phase1(phba); 9272 if (error) { 9273 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9274 "1411 Failed to set up driver resource.\n"); 9275 goto out_unset_pci_mem_s4; 9276 } 9277 9278 /* Set up SLI-4 Specific device driver resources */ 9279 error = lpfc_sli4_driver_resource_setup(phba); 9280 if (error) { 9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9282 "1412 Failed to set up driver resource.\n"); 9283 goto out_unset_pci_mem_s4; 9284 } 9285 9286 /* Initialize and populate the iocb list per host */ 9287 9288 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9289 "2821 initialize iocb list %d.\n", 9290 phba->cfg_iocb_cnt*1024); 9291 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9292 9293 if (error) { 9294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9295 "1413 Failed to initialize iocb list.\n"); 9296 goto out_unset_driver_resource_s4; 9297 } 9298 9299 INIT_LIST_HEAD(&phba->active_rrq_list); 9300 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9301 9302 /* Set up common device driver resources */ 9303 error = lpfc_setup_driver_resource_phase2(phba); 9304 if (error) { 9305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9306 "1414 Failed to set up driver resource.\n"); 9307 goto out_free_iocb_list; 9308 } 9309 9310 /* Get the default values for Model Name and Description */ 9311 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9312 9313 /* Create SCSI host to the physical port */ 9314 error = lpfc_create_shost(phba); 9315 if (error) { 9316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9317 "1415 Failed to create scsi host.\n"); 9318 goto out_unset_driver_resource; 9319 } 9320 9321 /* Configure sysfs attributes */ 9322 vport = phba->pport; 9323 error = lpfc_alloc_sysfs_attr(vport); 9324 if (error) { 9325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9326 "1416 Failed to allocate sysfs attr\n"); 9327 goto out_destroy_shost; 9328 } 9329 9330 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9331 /* Now, trying to enable interrupt and bring up the device */ 9332 cfg_mode = phba->cfg_use_msi; 9333 while (true) { 9334 /* Put device to a known state before enabling interrupt */ 9335 lpfc_stop_port(phba); 9336 /* Configure and enable interrupt */ 9337 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9338 if (intr_mode == LPFC_INTR_ERROR) { 9339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9340 "0426 Failed to enable interrupt.\n"); 9341 error = -ENODEV; 9342 goto out_free_sysfs_attr; 9343 } 9344 /* Default to single EQ for non-MSI-X */ 9345 if (phba->intr_type != MSIX) 9346 adjusted_fcp_eq_count = 0; 9347 else if (phba->sli4_hba.msix_vec_nr < 9348 phba->cfg_fcp_eq_count + 1) 9349 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9350 else 9351 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9352 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9353 /* Set up SLI-4 HBA */ 9354 if (lpfc_sli4_hba_setup(phba)) { 9355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9356 "1421 Failed to set up hba\n"); 9357 error = -ENODEV; 9358 goto out_disable_intr; 9359 } 9360 9361 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9362 if (intr_mode != 0) 9363 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9364 LPFC_ACT_INTR_CNT); 9365 9366 /* Check active interrupts received only for MSI/MSI-X */ 9367 if (intr_mode == 0 || 9368 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9369 /* Log the current active interrupt mode */ 9370 phba->intr_mode = intr_mode; 9371 lpfc_log_intr_mode(phba, intr_mode); 9372 break; 9373 } 9374 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9375 "0451 Configure interrupt mode (%d) " 9376 "failed active interrupt test.\n", 9377 intr_mode); 9378 /* Unset the previous SLI-4 HBA setup. */ 9379 /* 9380 * TODO: Is this operation compatible with IF TYPE 2 9381 * devices? All port state is deleted and cleared. 9382 */ 9383 lpfc_sli4_unset_hba(phba); 9384 /* Try next level of interrupt mode */ 9385 cfg_mode = --intr_mode; 9386 } 9387 9388 /* Perform post initialization setup */ 9389 lpfc_post_init_setup(phba); 9390 9391 /* check for firmware upgrade or downgrade (if_type 2 only) */ 9392 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 9393 LPFC_SLI_INTF_IF_TYPE_2) { 9394 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9395 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9396 if (!error) { 9397 lpfc_write_firmware(phba, fw); 9398 release_firmware(fw); 9399 } 9400 } 9401 9402 /* Check if there are static vports to be created. */ 9403 lpfc_create_static_vport(phba); 9404 return 0; 9405 9406 out_disable_intr: 9407 lpfc_sli4_disable_intr(phba); 9408 out_free_sysfs_attr: 9409 lpfc_free_sysfs_attr(vport); 9410 out_destroy_shost: 9411 lpfc_destroy_shost(phba); 9412 out_unset_driver_resource: 9413 lpfc_unset_driver_resource_phase2(phba); 9414 out_free_iocb_list: 9415 lpfc_free_iocb_list(phba); 9416 out_unset_driver_resource_s4: 9417 lpfc_sli4_driver_resource_unset(phba); 9418 out_unset_pci_mem_s4: 9419 lpfc_sli4_pci_mem_unset(phba); 9420 out_disable_pci_dev: 9421 lpfc_disable_pci_dev(phba); 9422 if (shost) 9423 scsi_host_put(shost); 9424 out_free_phba: 9425 lpfc_hba_free(phba); 9426 return error; 9427 } 9428 9429 /** 9430 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9431 * @pdev: pointer to PCI device 9432 * 9433 * This routine is called from the kernel's PCI subsystem to device with 9434 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9435 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9436 * device to be removed from the PCI subsystem properly. 9437 **/ 9438 static void __devexit 9439 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9440 { 9441 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9442 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9443 struct lpfc_vport **vports; 9444 struct lpfc_hba *phba = vport->phba; 9445 int i; 9446 9447 /* Mark the device unloading flag */ 9448 spin_lock_irq(&phba->hbalock); 9449 vport->load_flag |= FC_UNLOADING; 9450 spin_unlock_irq(&phba->hbalock); 9451 9452 /* Free the HBA sysfs attributes */ 9453 lpfc_free_sysfs_attr(vport); 9454 9455 /* Release all the vports against this physical port */ 9456 vports = lpfc_create_vport_work_array(phba); 9457 if (vports != NULL) 9458 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++) 9459 fc_vport_terminate(vports[i]->fc_vport); 9460 lpfc_destroy_vport_work_array(phba, vports); 9461 9462 /* Remove FC host and then SCSI host with the physical port */ 9463 fc_remove_host(shost); 9464 scsi_remove_host(shost); 9465 9466 /* Perform cleanup on the physical port */ 9467 lpfc_cleanup(vport); 9468 9469 /* 9470 * Bring down the SLI Layer. This step disables all interrupts, 9471 * clears the rings, discards all mailbox commands, and resets 9472 * the HBA FCoE function. 9473 */ 9474 lpfc_debugfs_terminate(vport); 9475 lpfc_sli4_hba_unset(phba); 9476 9477 spin_lock_irq(&phba->hbalock); 9478 list_del_init(&vport->listentry); 9479 spin_unlock_irq(&phba->hbalock); 9480 9481 /* Perform scsi free before driver resource_unset since scsi 9482 * buffers are released to their corresponding pools here. 9483 */ 9484 lpfc_scsi_free(phba); 9485 lpfc_sli4_driver_resource_unset(phba); 9486 9487 /* Unmap adapter Control and Doorbell registers */ 9488 lpfc_sli4_pci_mem_unset(phba); 9489 9490 /* Release PCI resources and disable device's PCI function */ 9491 scsi_host_put(shost); 9492 lpfc_disable_pci_dev(phba); 9493 9494 /* Finally, free the driver's device data structure */ 9495 lpfc_hba_free(phba); 9496 9497 return; 9498 } 9499 9500 /** 9501 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9502 * @pdev: pointer to PCI device 9503 * @msg: power management message 9504 * 9505 * This routine is called from the kernel's PCI subsystem to support system 9506 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9507 * this method, it quiesces the device by stopping the driver's worker 9508 * thread for the device, turning off device's interrupt and DMA, and bring 9509 * the device offline. Note that as the driver implements the minimum PM 9510 * requirements to a power-aware driver's PM support for suspend/resume -- all 9511 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9512 * method call will be treated as SUSPEND and the driver will fully 9513 * reinitialize its device during resume() method call, the driver will set 9514 * device to PCI_D3hot state in PCI config space instead of setting it 9515 * according to the @msg provided by the PM. 9516 * 9517 * Return code 9518 * 0 - driver suspended the device 9519 * Error otherwise 9520 **/ 9521 static int 9522 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9523 { 9524 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9525 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9526 9527 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9528 "2843 PCI device Power Management suspend.\n"); 9529 9530 /* Bring down the device */ 9531 lpfc_offline_prep(phba); 9532 lpfc_offline(phba); 9533 kthread_stop(phba->worker_thread); 9534 9535 /* Disable interrupt from device */ 9536 lpfc_sli4_disable_intr(phba); 9537 lpfc_sli4_queue_destroy(phba); 9538 9539 /* Save device state to PCI config space */ 9540 pci_save_state(pdev); 9541 pci_set_power_state(pdev, PCI_D3hot); 9542 9543 return 0; 9544 } 9545 9546 /** 9547 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9548 * @pdev: pointer to PCI device 9549 * 9550 * This routine is called from the kernel's PCI subsystem to support system 9551 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9552 * this method, it restores the device's PCI config space state and fully 9553 * reinitializes the device and brings it online. Note that as the driver 9554 * implements the minimum PM requirements to a power-aware driver's PM for 9555 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9556 * to the suspend() method call will be treated as SUSPEND and the driver 9557 * will fully reinitialize its device during resume() method call, the device 9558 * will be set to PCI_D0 directly in PCI config space before restoring the 9559 * state. 9560 * 9561 * Return code 9562 * 0 - driver suspended the device 9563 * Error otherwise 9564 **/ 9565 static int 9566 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9567 { 9568 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9569 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9570 uint32_t intr_mode; 9571 int error; 9572 9573 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9574 "0292 PCI device Power Management resume.\n"); 9575 9576 /* Restore device state from PCI config space */ 9577 pci_set_power_state(pdev, PCI_D0); 9578 pci_restore_state(pdev); 9579 9580 /* 9581 * As the new kernel behavior of pci_restore_state() API call clears 9582 * device saved_state flag, need to save the restored state again. 9583 */ 9584 pci_save_state(pdev); 9585 9586 if (pdev->is_busmaster) 9587 pci_set_master(pdev); 9588 9589 /* Startup the kernel thread for this host adapter. */ 9590 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9591 "lpfc_worker_%d", phba->brd_no); 9592 if (IS_ERR(phba->worker_thread)) { 9593 error = PTR_ERR(phba->worker_thread); 9594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9595 "0293 PM resume failed to start worker " 9596 "thread: error=x%x.\n", error); 9597 return error; 9598 } 9599 9600 /* Configure and enable interrupt */ 9601 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9602 if (intr_mode == LPFC_INTR_ERROR) { 9603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9604 "0294 PM resume Failed to enable interrupt\n"); 9605 return -EIO; 9606 } else 9607 phba->intr_mode = intr_mode; 9608 9609 /* Restart HBA and bring it online */ 9610 lpfc_sli_brdrestart(phba); 9611 lpfc_online(phba); 9612 9613 /* Log the current active interrupt mode */ 9614 lpfc_log_intr_mode(phba, phba->intr_mode); 9615 9616 return 0; 9617 } 9618 9619 /** 9620 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9621 * @phba: pointer to lpfc hba data structure. 9622 * 9623 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9624 * aborts all the outstanding SCSI I/Os to the pci device. 9625 **/ 9626 static void 9627 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9628 { 9629 struct lpfc_sli *psli = &phba->sli; 9630 struct lpfc_sli_ring *pring; 9631 9632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9633 "2828 PCI channel I/O abort preparing for recovery\n"); 9634 /* 9635 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9636 * and let the SCSI mid-layer to retry them to recover. 9637 */ 9638 pring = &psli->ring[psli->fcp_ring]; 9639 lpfc_sli_abort_iocb_ring(phba, pring); 9640 } 9641 9642 /** 9643 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9644 * @phba: pointer to lpfc hba data structure. 9645 * 9646 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9647 * disables the device interrupt and pci device, and aborts the internal FCP 9648 * pending I/Os. 9649 **/ 9650 static void 9651 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9652 { 9653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9654 "2826 PCI channel disable preparing for reset\n"); 9655 9656 /* Block any management I/Os to the device */ 9657 lpfc_block_mgmt_io(phba); 9658 9659 /* Block all SCSI devices' I/Os on the host */ 9660 lpfc_scsi_dev_block(phba); 9661 9662 /* stop all timers */ 9663 lpfc_stop_hba_timers(phba); 9664 9665 /* Disable interrupt and pci device */ 9666 lpfc_sli4_disable_intr(phba); 9667 lpfc_sli4_queue_destroy(phba); 9668 pci_disable_device(phba->pcidev); 9669 9670 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9671 lpfc_sli_flush_fcp_rings(phba); 9672 } 9673 9674 /** 9675 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9676 * @phba: pointer to lpfc hba data structure. 9677 * 9678 * This routine is called to prepare the SLI4 device for PCI slot permanently 9679 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9680 * pending I/Os. 9681 **/ 9682 static void 9683 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9684 { 9685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9686 "2827 PCI channel permanent disable for failure\n"); 9687 9688 /* Block all SCSI devices' I/Os on the host */ 9689 lpfc_scsi_dev_block(phba); 9690 9691 /* stop all timers */ 9692 lpfc_stop_hba_timers(phba); 9693 9694 /* Clean up all driver's outstanding SCSI I/Os */ 9695 lpfc_sli_flush_fcp_rings(phba); 9696 } 9697 9698 /** 9699 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9700 * @pdev: pointer to PCI device. 9701 * @state: the current PCI connection state. 9702 * 9703 * This routine is called from the PCI subsystem for error handling to device 9704 * with SLI-4 interface spec. This function is called by the PCI subsystem 9705 * after a PCI bus error affecting this device has been detected. When this 9706 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9707 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9708 * for the PCI subsystem to perform proper recovery as desired. 9709 * 9710 * Return codes 9711 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9712 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9713 **/ 9714 static pci_ers_result_t 9715 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9716 { 9717 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9718 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9719 9720 switch (state) { 9721 case pci_channel_io_normal: 9722 /* Non-fatal error, prepare for recovery */ 9723 lpfc_sli4_prep_dev_for_recover(phba); 9724 return PCI_ERS_RESULT_CAN_RECOVER; 9725 case pci_channel_io_frozen: 9726 /* Fatal error, prepare for slot reset */ 9727 lpfc_sli4_prep_dev_for_reset(phba); 9728 return PCI_ERS_RESULT_NEED_RESET; 9729 case pci_channel_io_perm_failure: 9730 /* Permanent failure, prepare for device down */ 9731 lpfc_sli4_prep_dev_for_perm_failure(phba); 9732 return PCI_ERS_RESULT_DISCONNECT; 9733 default: 9734 /* Unknown state, prepare and request slot reset */ 9735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9736 "2825 Unknown PCI error state: x%x\n", state); 9737 lpfc_sli4_prep_dev_for_reset(phba); 9738 return PCI_ERS_RESULT_NEED_RESET; 9739 } 9740 } 9741 9742 /** 9743 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9744 * @pdev: pointer to PCI device. 9745 * 9746 * This routine is called from the PCI subsystem for error handling to device 9747 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9748 * restart the PCI card from scratch, as if from a cold-boot. During the 9749 * PCI subsystem error recovery, after the driver returns 9750 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9751 * recovery and then call this routine before calling the .resume method to 9752 * recover the device. This function will initialize the HBA device, enable 9753 * the interrupt, but it will just put the HBA to offline state without 9754 * passing any I/O traffic. 9755 * 9756 * Return codes 9757 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9758 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9759 */ 9760 static pci_ers_result_t 9761 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9762 { 9763 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9764 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9765 struct lpfc_sli *psli = &phba->sli; 9766 uint32_t intr_mode; 9767 9768 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9769 if (pci_enable_device_mem(pdev)) { 9770 printk(KERN_ERR "lpfc: Cannot re-enable " 9771 "PCI device after reset.\n"); 9772 return PCI_ERS_RESULT_DISCONNECT; 9773 } 9774 9775 pci_restore_state(pdev); 9776 9777 /* 9778 * As the new kernel behavior of pci_restore_state() API call clears 9779 * device saved_state flag, need to save the restored state again. 9780 */ 9781 pci_save_state(pdev); 9782 9783 if (pdev->is_busmaster) 9784 pci_set_master(pdev); 9785 9786 spin_lock_irq(&phba->hbalock); 9787 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9788 spin_unlock_irq(&phba->hbalock); 9789 9790 /* Configure and enable interrupt */ 9791 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9792 if (intr_mode == LPFC_INTR_ERROR) { 9793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9794 "2824 Cannot re-enable interrupt after " 9795 "slot reset.\n"); 9796 return PCI_ERS_RESULT_DISCONNECT; 9797 } else 9798 phba->intr_mode = intr_mode; 9799 9800 /* Log the current active interrupt mode */ 9801 lpfc_log_intr_mode(phba, phba->intr_mode); 9802 9803 return PCI_ERS_RESULT_RECOVERED; 9804 } 9805 9806 /** 9807 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 9808 * @pdev: pointer to PCI device 9809 * 9810 * This routine is called from the PCI subsystem for error handling to device 9811 * with SLI-4 interface spec. It is called when kernel error recovery tells 9812 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9813 * error recovery. After this call, traffic can start to flow from this device 9814 * again. 9815 **/ 9816 static void 9817 lpfc_io_resume_s4(struct pci_dev *pdev) 9818 { 9819 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9820 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9821 9822 /* 9823 * In case of slot reset, as function reset is performed through 9824 * mailbox command which needs DMA to be enabled, this operation 9825 * has to be moved to the io resume phase. Taking device offline 9826 * will perform the necessary cleanup. 9827 */ 9828 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 9829 /* Perform device reset */ 9830 lpfc_offline_prep(phba); 9831 lpfc_offline(phba); 9832 lpfc_sli_brdrestart(phba); 9833 /* Bring the device back online */ 9834 lpfc_online(phba); 9835 } 9836 9837 /* Clean up Advanced Error Reporting (AER) if needed */ 9838 if (phba->hba_flag & HBA_AER_ENABLED) 9839 pci_cleanup_aer_uncorrect_error_status(pdev); 9840 } 9841 9842 /** 9843 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 9844 * @pdev: pointer to PCI device 9845 * @pid: pointer to PCI device identifier 9846 * 9847 * This routine is to be registered to the kernel's PCI subsystem. When an 9848 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 9849 * at PCI device-specific information of the device and driver to see if the 9850 * driver state that it can support this kind of device. If the match is 9851 * successful, the driver core invokes this routine. This routine dispatches 9852 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 9853 * do all the initialization that it needs to do to handle the HBA device 9854 * properly. 9855 * 9856 * Return code 9857 * 0 - driver can claim the device 9858 * negative value - driver can not claim the device 9859 **/ 9860 static int __devinit 9861 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 9862 { 9863 int rc; 9864 struct lpfc_sli_intf intf; 9865 9866 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 9867 return -ENODEV; 9868 9869 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 9870 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 9871 rc = lpfc_pci_probe_one_s4(pdev, pid); 9872 else 9873 rc = lpfc_pci_probe_one_s3(pdev, pid); 9874 9875 return rc; 9876 } 9877 9878 /** 9879 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 9880 * @pdev: pointer to PCI device 9881 * 9882 * This routine is to be registered to the kernel's PCI subsystem. When an 9883 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 9884 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 9885 * remove routine, which will perform all the necessary cleanup for the 9886 * device to be removed from the PCI subsystem properly. 9887 **/ 9888 static void __devexit 9889 lpfc_pci_remove_one(struct pci_dev *pdev) 9890 { 9891 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9892 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9893 9894 switch (phba->pci_dev_grp) { 9895 case LPFC_PCI_DEV_LP: 9896 lpfc_pci_remove_one_s3(pdev); 9897 break; 9898 case LPFC_PCI_DEV_OC: 9899 lpfc_pci_remove_one_s4(pdev); 9900 break; 9901 default: 9902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9903 "1424 Invalid PCI device group: 0x%x\n", 9904 phba->pci_dev_grp); 9905 break; 9906 } 9907 return; 9908 } 9909 9910 /** 9911 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 9912 * @pdev: pointer to PCI device 9913 * @msg: power management message 9914 * 9915 * This routine is to be registered to the kernel's PCI subsystem to support 9916 * system Power Management (PM). When PM invokes this method, it dispatches 9917 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 9918 * suspend the device. 9919 * 9920 * Return code 9921 * 0 - driver suspended the device 9922 * Error otherwise 9923 **/ 9924 static int 9925 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 9926 { 9927 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9929 int rc = -ENODEV; 9930 9931 switch (phba->pci_dev_grp) { 9932 case LPFC_PCI_DEV_LP: 9933 rc = lpfc_pci_suspend_one_s3(pdev, msg); 9934 break; 9935 case LPFC_PCI_DEV_OC: 9936 rc = lpfc_pci_suspend_one_s4(pdev, msg); 9937 break; 9938 default: 9939 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9940 "1425 Invalid PCI device group: 0x%x\n", 9941 phba->pci_dev_grp); 9942 break; 9943 } 9944 return rc; 9945 } 9946 9947 /** 9948 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 9949 * @pdev: pointer to PCI device 9950 * 9951 * This routine is to be registered to the kernel's PCI subsystem to support 9952 * system Power Management (PM). When PM invokes this method, it dispatches 9953 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 9954 * resume the device. 9955 * 9956 * Return code 9957 * 0 - driver suspended the device 9958 * Error otherwise 9959 **/ 9960 static int 9961 lpfc_pci_resume_one(struct pci_dev *pdev) 9962 { 9963 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9964 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9965 int rc = -ENODEV; 9966 9967 switch (phba->pci_dev_grp) { 9968 case LPFC_PCI_DEV_LP: 9969 rc = lpfc_pci_resume_one_s3(pdev); 9970 break; 9971 case LPFC_PCI_DEV_OC: 9972 rc = lpfc_pci_resume_one_s4(pdev); 9973 break; 9974 default: 9975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9976 "1426 Invalid PCI device group: 0x%x\n", 9977 phba->pci_dev_grp); 9978 break; 9979 } 9980 return rc; 9981 } 9982 9983 /** 9984 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 9985 * @pdev: pointer to PCI device. 9986 * @state: the current PCI connection state. 9987 * 9988 * This routine is registered to the PCI subsystem for error handling. This 9989 * function is called by the PCI subsystem after a PCI bus error affecting 9990 * this device has been detected. When this routine is invoked, it dispatches 9991 * the action to the proper SLI-3 or SLI-4 device error detected handling 9992 * routine, which will perform the proper error detected operation. 9993 * 9994 * Return codes 9995 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9996 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9997 **/ 9998 static pci_ers_result_t 9999 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10000 { 10001 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10002 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10003 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10004 10005 switch (phba->pci_dev_grp) { 10006 case LPFC_PCI_DEV_LP: 10007 rc = lpfc_io_error_detected_s3(pdev, state); 10008 break; 10009 case LPFC_PCI_DEV_OC: 10010 rc = lpfc_io_error_detected_s4(pdev, state); 10011 break; 10012 default: 10013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10014 "1427 Invalid PCI device group: 0x%x\n", 10015 phba->pci_dev_grp); 10016 break; 10017 } 10018 return rc; 10019 } 10020 10021 /** 10022 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10023 * @pdev: pointer to PCI device. 10024 * 10025 * This routine is registered to the PCI subsystem for error handling. This 10026 * function is called after PCI bus has been reset to restart the PCI card 10027 * from scratch, as if from a cold-boot. When this routine is invoked, it 10028 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10029 * routine, which will perform the proper device reset. 10030 * 10031 * Return codes 10032 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10033 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10034 **/ 10035 static pci_ers_result_t 10036 lpfc_io_slot_reset(struct pci_dev *pdev) 10037 { 10038 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10039 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10040 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10041 10042 switch (phba->pci_dev_grp) { 10043 case LPFC_PCI_DEV_LP: 10044 rc = lpfc_io_slot_reset_s3(pdev); 10045 break; 10046 case LPFC_PCI_DEV_OC: 10047 rc = lpfc_io_slot_reset_s4(pdev); 10048 break; 10049 default: 10050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10051 "1428 Invalid PCI device group: 0x%x\n", 10052 phba->pci_dev_grp); 10053 break; 10054 } 10055 return rc; 10056 } 10057 10058 /** 10059 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10060 * @pdev: pointer to PCI device 10061 * 10062 * This routine is registered to the PCI subsystem for error handling. It 10063 * is called when kernel error recovery tells the lpfc driver that it is 10064 * OK to resume normal PCI operation after PCI bus error recovery. When 10065 * this routine is invoked, it dispatches the action to the proper SLI-3 10066 * or SLI-4 device io_resume routine, which will resume the device operation. 10067 **/ 10068 static void 10069 lpfc_io_resume(struct pci_dev *pdev) 10070 { 10071 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10072 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10073 10074 switch (phba->pci_dev_grp) { 10075 case LPFC_PCI_DEV_LP: 10076 lpfc_io_resume_s3(pdev); 10077 break; 10078 case LPFC_PCI_DEV_OC: 10079 lpfc_io_resume_s4(pdev); 10080 break; 10081 default: 10082 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10083 "1429 Invalid PCI device group: 0x%x\n", 10084 phba->pci_dev_grp); 10085 break; 10086 } 10087 return; 10088 } 10089 10090 /** 10091 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10092 * @inode: pointer to the inode representing the lpfcmgmt device 10093 * @filep: pointer to the file representing the open lpfcmgmt device 10094 * 10095 * This routine puts a reference count on the lpfc module whenever the 10096 * character device is opened 10097 **/ 10098 static int 10099 lpfc_mgmt_open(struct inode *inode, struct file *filep) 10100 { 10101 try_module_get(THIS_MODULE); 10102 return 0; 10103 } 10104 10105 /** 10106 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10107 * @inode: pointer to the inode representing the lpfcmgmt device 10108 * @filep: pointer to the file representing the open lpfcmgmt device 10109 * 10110 * This routine removes a reference count from the lpfc module when the 10111 * character device is closed 10112 **/ 10113 static int 10114 lpfc_mgmt_release(struct inode *inode, struct file *filep) 10115 { 10116 module_put(THIS_MODULE); 10117 return 0; 10118 } 10119 10120 static struct pci_device_id lpfc_id_table[] = { 10121 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10122 PCI_ANY_ID, PCI_ANY_ID, }, 10123 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10124 PCI_ANY_ID, PCI_ANY_ID, }, 10125 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10126 PCI_ANY_ID, PCI_ANY_ID, }, 10127 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10128 PCI_ANY_ID, PCI_ANY_ID, }, 10129 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10130 PCI_ANY_ID, PCI_ANY_ID, }, 10131 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10132 PCI_ANY_ID, PCI_ANY_ID, }, 10133 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10134 PCI_ANY_ID, PCI_ANY_ID, }, 10135 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10136 PCI_ANY_ID, PCI_ANY_ID, }, 10137 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10138 PCI_ANY_ID, PCI_ANY_ID, }, 10139 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10140 PCI_ANY_ID, PCI_ANY_ID, }, 10141 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10142 PCI_ANY_ID, PCI_ANY_ID, }, 10143 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10144 PCI_ANY_ID, PCI_ANY_ID, }, 10145 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10146 PCI_ANY_ID, PCI_ANY_ID, }, 10147 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10148 PCI_ANY_ID, PCI_ANY_ID, }, 10149 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10150 PCI_ANY_ID, PCI_ANY_ID, }, 10151 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10152 PCI_ANY_ID, PCI_ANY_ID, }, 10153 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10154 PCI_ANY_ID, PCI_ANY_ID, }, 10155 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10156 PCI_ANY_ID, PCI_ANY_ID, }, 10157 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10158 PCI_ANY_ID, PCI_ANY_ID, }, 10159 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10160 PCI_ANY_ID, PCI_ANY_ID, }, 10161 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10162 PCI_ANY_ID, PCI_ANY_ID, }, 10163 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10164 PCI_ANY_ID, PCI_ANY_ID, }, 10165 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10166 PCI_ANY_ID, PCI_ANY_ID, }, 10167 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10168 PCI_ANY_ID, PCI_ANY_ID, }, 10169 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10170 PCI_ANY_ID, PCI_ANY_ID, }, 10171 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10172 PCI_ANY_ID, PCI_ANY_ID, }, 10173 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10174 PCI_ANY_ID, PCI_ANY_ID, }, 10175 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10176 PCI_ANY_ID, PCI_ANY_ID, }, 10177 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10178 PCI_ANY_ID, PCI_ANY_ID, }, 10179 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10180 PCI_ANY_ID, PCI_ANY_ID, }, 10181 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10182 PCI_ANY_ID, PCI_ANY_ID, }, 10183 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10184 PCI_ANY_ID, PCI_ANY_ID, }, 10185 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10186 PCI_ANY_ID, PCI_ANY_ID, }, 10187 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10188 PCI_ANY_ID, PCI_ANY_ID, }, 10189 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10190 PCI_ANY_ID, PCI_ANY_ID, }, 10191 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10192 PCI_ANY_ID, PCI_ANY_ID, }, 10193 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10194 PCI_ANY_ID, PCI_ANY_ID, }, 10195 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10196 PCI_ANY_ID, PCI_ANY_ID, }, 10197 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10198 PCI_ANY_ID, PCI_ANY_ID, }, 10199 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10200 PCI_ANY_ID, PCI_ANY_ID, }, 10201 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10202 PCI_ANY_ID, PCI_ANY_ID, }, 10203 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10204 PCI_ANY_ID, PCI_ANY_ID, }, 10205 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10206 PCI_ANY_ID, PCI_ANY_ID, }, 10207 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10208 PCI_ANY_ID, PCI_ANY_ID, }, 10209 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10210 PCI_ANY_ID, PCI_ANY_ID, }, 10211 { 0 } 10212 }; 10213 10214 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10215 10216 static struct pci_error_handlers lpfc_err_handler = { 10217 .error_detected = lpfc_io_error_detected, 10218 .slot_reset = lpfc_io_slot_reset, 10219 .resume = lpfc_io_resume, 10220 }; 10221 10222 static struct pci_driver lpfc_driver = { 10223 .name = LPFC_DRIVER_NAME, 10224 .id_table = lpfc_id_table, 10225 .probe = lpfc_pci_probe_one, 10226 .remove = __devexit_p(lpfc_pci_remove_one), 10227 .suspend = lpfc_pci_suspend_one, 10228 .resume = lpfc_pci_resume_one, 10229 .err_handler = &lpfc_err_handler, 10230 }; 10231 10232 static const struct file_operations lpfc_mgmt_fop = { 10233 .open = lpfc_mgmt_open, 10234 .release = lpfc_mgmt_release, 10235 }; 10236 10237 static struct miscdevice lpfc_mgmt_dev = { 10238 .minor = MISC_DYNAMIC_MINOR, 10239 .name = "lpfcmgmt", 10240 .fops = &lpfc_mgmt_fop, 10241 }; 10242 10243 /** 10244 * lpfc_init - lpfc module initialization routine 10245 * 10246 * This routine is to be invoked when the lpfc module is loaded into the 10247 * kernel. The special kernel macro module_init() is used to indicate the 10248 * role of this routine to the kernel as lpfc module entry point. 10249 * 10250 * Return codes 10251 * 0 - successful 10252 * -ENOMEM - FC attach transport failed 10253 * all others - failed 10254 */ 10255 static int __init 10256 lpfc_init(void) 10257 { 10258 int error = 0; 10259 10260 printk(LPFC_MODULE_DESC "\n"); 10261 printk(LPFC_COPYRIGHT "\n"); 10262 10263 error = misc_register(&lpfc_mgmt_dev); 10264 if (error) 10265 printk(KERN_ERR "Could not register lpfcmgmt device, " 10266 "misc_register returned with status %d", error); 10267 10268 if (lpfc_enable_npiv) { 10269 lpfc_transport_functions.vport_create = lpfc_vport_create; 10270 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10271 } 10272 lpfc_transport_template = 10273 fc_attach_transport(&lpfc_transport_functions); 10274 if (lpfc_transport_template == NULL) 10275 return -ENOMEM; 10276 if (lpfc_enable_npiv) { 10277 lpfc_vport_transport_template = 10278 fc_attach_transport(&lpfc_vport_transport_functions); 10279 if (lpfc_vport_transport_template == NULL) { 10280 fc_release_transport(lpfc_transport_template); 10281 return -ENOMEM; 10282 } 10283 } 10284 error = pci_register_driver(&lpfc_driver); 10285 if (error) { 10286 fc_release_transport(lpfc_transport_template); 10287 if (lpfc_enable_npiv) 10288 fc_release_transport(lpfc_vport_transport_template); 10289 } 10290 10291 return error; 10292 } 10293 10294 /** 10295 * lpfc_exit - lpfc module removal routine 10296 * 10297 * This routine is invoked when the lpfc module is removed from the kernel. 10298 * The special kernel macro module_exit() is used to indicate the role of 10299 * this routine to the kernel as lpfc module exit point. 10300 */ 10301 static void __exit 10302 lpfc_exit(void) 10303 { 10304 misc_deregister(&lpfc_mgmt_dev); 10305 pci_unregister_driver(&lpfc_driver); 10306 fc_release_transport(lpfc_transport_template); 10307 if (lpfc_enable_npiv) 10308 fc_release_transport(lpfc_vport_transport_template); 10309 if (_dump_buf_data) { 10310 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10311 "_dump_buf_data at 0x%p\n", 10312 (1L << _dump_buf_data_order), _dump_buf_data); 10313 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10314 } 10315 10316 if (_dump_buf_dif) { 10317 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10318 "_dump_buf_dif at 0x%p\n", 10319 (1L << _dump_buf_dif_order), _dump_buf_dif); 10320 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10321 } 10322 } 10323 10324 module_init(lpfc_init); 10325 module_exit(lpfc_exit); 10326 MODULE_LICENSE("GPL"); 10327 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10328 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10329 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10330