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_els_sgl_list(struct lpfc_hba *); 68 static void 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 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 78 79 static struct scsi_transport_template *lpfc_transport_template = NULL; 80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 81 static DEFINE_IDR(lpfc_hba_index); 82 83 /** 84 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 85 * @phba: pointer to lpfc hba data structure. 86 * 87 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 88 * mailbox command. It retrieves the revision information from the HBA and 89 * collects the Vital Product Data (VPD) about the HBA for preparing the 90 * configuration of the HBA. 91 * 92 * Return codes: 93 * 0 - success. 94 * -ERESTART - requests the SLI layer to reset the HBA and try again. 95 * Any other value - indicates an error. 96 **/ 97 int 98 lpfc_config_port_prep(struct lpfc_hba *phba) 99 { 100 lpfc_vpd_t *vp = &phba->vpd; 101 int i = 0, rc; 102 LPFC_MBOXQ_t *pmb; 103 MAILBOX_t *mb; 104 char *lpfc_vpd_data = NULL; 105 uint16_t offset = 0; 106 static char licensed[56] = 107 "key unlock for use with gnu public licensed code only\0"; 108 static int init_key = 1; 109 110 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 111 if (!pmb) { 112 phba->link_state = LPFC_HBA_ERROR; 113 return -ENOMEM; 114 } 115 116 mb = &pmb->u.mb; 117 phba->link_state = LPFC_INIT_MBX_CMDS; 118 119 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 120 if (init_key) { 121 uint32_t *ptext = (uint32_t *) licensed; 122 123 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 124 *ptext = cpu_to_be32(*ptext); 125 init_key = 0; 126 } 127 128 lpfc_read_nv(phba, pmb); 129 memset((char*)mb->un.varRDnvp.rsvd3, 0, 130 sizeof (mb->un.varRDnvp.rsvd3)); 131 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 132 sizeof (licensed)); 133 134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 135 136 if (rc != MBX_SUCCESS) { 137 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 138 "0324 Config Port initialization " 139 "error, mbxCmd x%x READ_NVPARM, " 140 "mbxStatus x%x\n", 141 mb->mbxCommand, mb->mbxStatus); 142 mempool_free(pmb, phba->mbox_mem_pool); 143 return -ERESTART; 144 } 145 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 146 sizeof(phba->wwnn)); 147 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 148 sizeof(phba->wwpn)); 149 } 150 151 phba->sli3_options = 0x0; 152 153 /* Setup and issue mailbox READ REV command */ 154 lpfc_read_rev(phba, pmb); 155 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 156 if (rc != MBX_SUCCESS) { 157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 158 "0439 Adapter failed to init, mbxCmd x%x " 159 "READ_REV, mbxStatus x%x\n", 160 mb->mbxCommand, mb->mbxStatus); 161 mempool_free( pmb, phba->mbox_mem_pool); 162 return -ERESTART; 163 } 164 165 166 /* 167 * The value of rr must be 1 since the driver set the cv field to 1. 168 * This setting requires the FW to set all revision fields. 169 */ 170 if (mb->un.varRdRev.rr == 0) { 171 vp->rev.rBit = 0; 172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 173 "0440 Adapter failed to init, READ_REV has " 174 "missing revision information.\n"); 175 mempool_free(pmb, phba->mbox_mem_pool); 176 return -ERESTART; 177 } 178 179 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 180 mempool_free(pmb, phba->mbox_mem_pool); 181 return -EINVAL; 182 } 183 184 /* Save information as VPD data */ 185 vp->rev.rBit = 1; 186 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 187 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 188 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 189 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 190 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 191 vp->rev.biuRev = mb->un.varRdRev.biuRev; 192 vp->rev.smRev = mb->un.varRdRev.smRev; 193 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 194 vp->rev.endecRev = mb->un.varRdRev.endecRev; 195 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 196 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 197 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 198 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 199 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 200 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 201 202 /* If the sli feature level is less then 9, we must 203 * tear down all RPIs and VPIs on link down if NPIV 204 * is enabled. 205 */ 206 if (vp->rev.feaLevelHigh < 9) 207 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 208 209 if (lpfc_is_LC_HBA(phba->pcidev->device)) 210 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 211 sizeof (phba->RandomData)); 212 213 /* Get adapter VPD information */ 214 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 215 if (!lpfc_vpd_data) 216 goto out_free_mbox; 217 do { 218 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 220 221 if (rc != MBX_SUCCESS) { 222 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 223 "0441 VPD not present on adapter, " 224 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 225 mb->mbxCommand, mb->mbxStatus); 226 mb->un.varDmp.word_cnt = 0; 227 } 228 /* dump mem may return a zero when finished or we got a 229 * mailbox error, either way we are done. 230 */ 231 if (mb->un.varDmp.word_cnt == 0) 232 break; 233 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 234 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 235 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 236 lpfc_vpd_data + offset, 237 mb->un.varDmp.word_cnt); 238 offset += mb->un.varDmp.word_cnt; 239 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 240 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 241 242 kfree(lpfc_vpd_data); 243 out_free_mbox: 244 mempool_free(pmb, phba->mbox_mem_pool); 245 return 0; 246 } 247 248 /** 249 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 250 * @phba: pointer to lpfc hba data structure. 251 * @pmboxq: pointer to the driver internal queue element for mailbox command. 252 * 253 * This is the completion handler for driver's configuring asynchronous event 254 * mailbox command to the device. If the mailbox command returns successfully, 255 * it will set internal async event support flag to 1; otherwise, it will 256 * set internal async event support flag to 0. 257 **/ 258 static void 259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 260 { 261 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 262 phba->temp_sensor_support = 1; 263 else 264 phba->temp_sensor_support = 0; 265 mempool_free(pmboxq, phba->mbox_mem_pool); 266 return; 267 } 268 269 /** 270 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 271 * @phba: pointer to lpfc hba data structure. 272 * @pmboxq: pointer to the driver internal queue element for mailbox command. 273 * 274 * This is the completion handler for dump mailbox command for getting 275 * wake up parameters. When this command complete, the response contain 276 * Option rom version of the HBA. This function translate the version number 277 * into a human readable string and store it in OptionROMVersion. 278 **/ 279 static void 280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 281 { 282 struct prog_id *prg; 283 uint32_t prog_id_word; 284 char dist = ' '; 285 /* character array used for decoding dist type. */ 286 char dist_char[] = "nabx"; 287 288 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 289 mempool_free(pmboxq, phba->mbox_mem_pool); 290 return; 291 } 292 293 prg = (struct prog_id *) &prog_id_word; 294 295 /* word 7 contain option rom version */ 296 prog_id_word = pmboxq->u.mb.un.varWords[7]; 297 298 /* Decode the Option rom version word to a readable string */ 299 if (prg->dist < 4) 300 dist = dist_char[prg->dist]; 301 302 if ((prg->dist == 3) && (prg->num == 0)) 303 sprintf(phba->OptionROMVersion, "%d.%d%d", 304 prg->ver, prg->rev, prg->lev); 305 else 306 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d", 307 prg->ver, prg->rev, prg->lev, 308 dist, prg->num); 309 mempool_free(pmboxq, phba->mbox_mem_pool); 310 return; 311 } 312 313 /** 314 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 315 * cfg_soft_wwnn, cfg_soft_wwpn 316 * @vport: pointer to lpfc vport data structure. 317 * 318 * 319 * Return codes 320 * None. 321 **/ 322 void 323 lpfc_update_vport_wwn(struct lpfc_vport *vport) 324 { 325 /* If the soft name exists then update it using the service params */ 326 if (vport->phba->cfg_soft_wwnn) 327 u64_to_wwn(vport->phba->cfg_soft_wwnn, 328 vport->fc_sparam.nodeName.u.wwn); 329 if (vport->phba->cfg_soft_wwpn) 330 u64_to_wwn(vport->phba->cfg_soft_wwpn, 331 vport->fc_sparam.portName.u.wwn); 332 333 /* 334 * If the name is empty or there exists a soft name 335 * then copy the service params name, otherwise use the fc name 336 */ 337 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 338 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 339 sizeof(struct lpfc_name)); 340 else 341 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 342 sizeof(struct lpfc_name)); 343 344 if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn) 345 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 346 sizeof(struct lpfc_name)); 347 else 348 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 349 sizeof(struct lpfc_name)); 350 } 351 352 /** 353 * lpfc_config_port_post - Perform lpfc initialization after config port 354 * @phba: pointer to lpfc hba data structure. 355 * 356 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 357 * command call. It performs all internal resource and state setups on the 358 * port: post IOCB buffers, enable appropriate host interrupt attentions, 359 * ELS ring timers, etc. 360 * 361 * Return codes 362 * 0 - success. 363 * Any other value - error. 364 **/ 365 int 366 lpfc_config_port_post(struct lpfc_hba *phba) 367 { 368 struct lpfc_vport *vport = phba->pport; 369 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 370 LPFC_MBOXQ_t *pmb; 371 MAILBOX_t *mb; 372 struct lpfc_dmabuf *mp; 373 struct lpfc_sli *psli = &phba->sli; 374 uint32_t status, timeout; 375 int i, j; 376 int rc; 377 378 spin_lock_irq(&phba->hbalock); 379 /* 380 * If the Config port completed correctly the HBA is not 381 * over heated any more. 382 */ 383 if (phba->over_temp_state == HBA_OVER_TEMP) 384 phba->over_temp_state = HBA_NORMAL_TEMP; 385 spin_unlock_irq(&phba->hbalock); 386 387 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 388 if (!pmb) { 389 phba->link_state = LPFC_HBA_ERROR; 390 return -ENOMEM; 391 } 392 mb = &pmb->u.mb; 393 394 /* Get login parameters for NID. */ 395 rc = lpfc_read_sparam(phba, pmb, 0); 396 if (rc) { 397 mempool_free(pmb, phba->mbox_mem_pool); 398 return -ENOMEM; 399 } 400 401 pmb->vport = vport; 402 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 404 "0448 Adapter failed init, mbxCmd x%x " 405 "READ_SPARM mbxStatus x%x\n", 406 mb->mbxCommand, mb->mbxStatus); 407 phba->link_state = LPFC_HBA_ERROR; 408 mp = (struct lpfc_dmabuf *) pmb->context1; 409 mempool_free(pmb, phba->mbox_mem_pool); 410 lpfc_mbuf_free(phba, mp->virt, mp->phys); 411 kfree(mp); 412 return -EIO; 413 } 414 415 mp = (struct lpfc_dmabuf *) pmb->context1; 416 417 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 418 lpfc_mbuf_free(phba, mp->virt, mp->phys); 419 kfree(mp); 420 pmb->context1 = NULL; 421 lpfc_update_vport_wwn(vport); 422 423 /* Update the fc_host data structures with new wwn. */ 424 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 425 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 426 fc_host_max_npiv_vports(shost) = phba->max_vpi; 427 428 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 429 /* This should be consolidated into parse_vpd ? - mr */ 430 if (phba->SerialNumber[0] == 0) { 431 uint8_t *outptr; 432 433 outptr = &vport->fc_nodename.u.s.IEEE[0]; 434 for (i = 0; i < 12; i++) { 435 status = *outptr++; 436 j = ((status & 0xf0) >> 4); 437 if (j <= 9) 438 phba->SerialNumber[i] = 439 (char)((uint8_t) 0x30 + (uint8_t) j); 440 else 441 phba->SerialNumber[i] = 442 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 443 i++; 444 j = (status & 0xf); 445 if (j <= 9) 446 phba->SerialNumber[i] = 447 (char)((uint8_t) 0x30 + (uint8_t) j); 448 else 449 phba->SerialNumber[i] = 450 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 451 } 452 } 453 454 lpfc_read_config(phba, pmb); 455 pmb->vport = vport; 456 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 457 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 458 "0453 Adapter failed to init, mbxCmd x%x " 459 "READ_CONFIG, mbxStatus x%x\n", 460 mb->mbxCommand, mb->mbxStatus); 461 phba->link_state = LPFC_HBA_ERROR; 462 mempool_free( pmb, phba->mbox_mem_pool); 463 return -EIO; 464 } 465 466 /* Check if the port is disabled */ 467 lpfc_sli_read_link_ste(phba); 468 469 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 470 if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1)) 471 phba->cfg_hba_queue_depth = 472 (mb->un.varRdConfig.max_xri + 1) - 473 lpfc_sli4_get_els_iocb_cnt(phba); 474 475 phba->lmt = mb->un.varRdConfig.lmt; 476 477 /* Get the default values for Model Name and Description */ 478 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 479 480 phba->link_state = LPFC_LINK_DOWN; 481 482 /* Only process IOCBs on ELS ring till hba_state is READY */ 483 if (psli->ring[psli->extra_ring].cmdringaddr) 484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->fcp_ring].cmdringaddr) 486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 if (psli->ring[psli->next_ring].cmdringaddr) 488 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT; 489 490 /* Post receive buffers for desired rings */ 491 if (phba->sli_rev != 3) 492 lpfc_post_rcv_buf(phba); 493 494 /* 495 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 496 */ 497 if (phba->intr_type == MSIX) { 498 rc = lpfc_config_msi(phba, pmb); 499 if (rc) { 500 mempool_free(pmb, phba->mbox_mem_pool); 501 return -EIO; 502 } 503 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 504 if (rc != MBX_SUCCESS) { 505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 506 "0352 Config MSI mailbox command " 507 "failed, mbxCmd x%x, mbxStatus x%x\n", 508 pmb->u.mb.mbxCommand, 509 pmb->u.mb.mbxStatus); 510 mempool_free(pmb, phba->mbox_mem_pool); 511 return -EIO; 512 } 513 } 514 515 spin_lock_irq(&phba->hbalock); 516 /* Initialize ERATT handling flag */ 517 phba->hba_flag &= ~HBA_ERATT_HANDLED; 518 519 /* Enable appropriate host interrupts */ 520 if (lpfc_readl(phba->HCregaddr, &status)) { 521 spin_unlock_irq(&phba->hbalock); 522 return -EIO; 523 } 524 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 525 if (psli->num_rings > 0) 526 status |= HC_R0INT_ENA; 527 if (psli->num_rings > 1) 528 status |= HC_R1INT_ENA; 529 if (psli->num_rings > 2) 530 status |= HC_R2INT_ENA; 531 if (psli->num_rings > 3) 532 status |= HC_R3INT_ENA; 533 534 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 535 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 536 status &= ~(HC_R0INT_ENA); 537 538 writel(status, phba->HCregaddr); 539 readl(phba->HCregaddr); /* flush */ 540 spin_unlock_irq(&phba->hbalock); 541 542 /* Set up ring-0 (ELS) timer */ 543 timeout = phba->fc_ratov * 2; 544 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 545 /* Set up heart beat (HB) timer */ 546 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 547 phba->hb_outstanding = 0; 548 phba->last_completion_time = jiffies; 549 /* Set up error attention (ERATT) polling timer */ 550 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); 551 552 if (phba->hba_flag & LINK_DISABLED) { 553 lpfc_printf_log(phba, 554 KERN_ERR, LOG_INIT, 555 "2598 Adapter Link is disabled.\n"); 556 lpfc_down_link(phba, pmb); 557 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 559 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 560 lpfc_printf_log(phba, 561 KERN_ERR, LOG_INIT, 562 "2599 Adapter failed to issue DOWN_LINK" 563 " mbox command rc 0x%x\n", rc); 564 565 mempool_free(pmb, phba->mbox_mem_pool); 566 return -EIO; 567 } 568 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 569 mempool_free(pmb, phba->mbox_mem_pool); 570 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 571 if (rc) 572 return rc; 573 } 574 /* MBOX buffer will be freed in mbox compl */ 575 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 576 if (!pmb) { 577 phba->link_state = LPFC_HBA_ERROR; 578 return -ENOMEM; 579 } 580 581 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 582 pmb->mbox_cmpl = lpfc_config_async_cmpl; 583 pmb->vport = phba->pport; 584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 585 586 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 587 lpfc_printf_log(phba, 588 KERN_ERR, 589 LOG_INIT, 590 "0456 Adapter failed to issue " 591 "ASYNCEVT_ENABLE mbox status x%x\n", 592 rc); 593 mempool_free(pmb, phba->mbox_mem_pool); 594 } 595 596 /* Get Option rom version */ 597 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 598 if (!pmb) { 599 phba->link_state = LPFC_HBA_ERROR; 600 return -ENOMEM; 601 } 602 603 lpfc_dump_wakeup_param(phba, pmb); 604 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 605 pmb->vport = phba->pport; 606 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 607 608 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 610 "to get Option ROM version status x%x\n", rc); 611 mempool_free(pmb, phba->mbox_mem_pool); 612 } 613 614 return 0; 615 } 616 617 /** 618 * lpfc_hba_init_link - Initialize the FC link 619 * @phba: pointer to lpfc hba data structure. 620 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 621 * 622 * This routine will issue the INIT_LINK mailbox command call. 623 * It is available to other drivers through the lpfc_hba data 624 * structure for use as a delayed link up mechanism with the 625 * module parameter lpfc_suppress_link_up. 626 * 627 * Return code 628 * 0 - success 629 * Any other value - error 630 **/ 631 int 632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 633 { 634 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 635 } 636 637 /** 638 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 639 * @phba: pointer to lpfc hba data structure. 640 * @fc_topology: desired fc topology. 641 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 642 * 643 * This routine will issue the INIT_LINK mailbox command call. 644 * It is available to other drivers through the lpfc_hba data 645 * structure for use as a delayed link up mechanism with the 646 * module parameter lpfc_suppress_link_up. 647 * 648 * Return code 649 * 0 - success 650 * Any other value - error 651 **/ 652 int 653 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 654 uint32_t flag) 655 { 656 struct lpfc_vport *vport = phba->pport; 657 LPFC_MBOXQ_t *pmb; 658 MAILBOX_t *mb; 659 int rc; 660 661 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 662 if (!pmb) { 663 phba->link_state = LPFC_HBA_ERROR; 664 return -ENOMEM; 665 } 666 mb = &pmb->u.mb; 667 pmb->vport = vport; 668 669 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 670 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 671 !(phba->lmt & LMT_1Gb)) || 672 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 673 !(phba->lmt & LMT_2Gb)) || 674 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 675 !(phba->lmt & LMT_4Gb)) || 676 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 677 !(phba->lmt & LMT_8Gb)) || 678 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 679 !(phba->lmt & LMT_10Gb)) || 680 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 681 !(phba->lmt & LMT_16Gb))) { 682 /* Reset link speed to auto */ 683 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 684 "1302 Invalid speed for this board:%d " 685 "Reset link speed to auto.\n", 686 phba->cfg_link_speed); 687 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 688 } 689 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 690 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 691 if (phba->sli_rev < LPFC_SLI_REV4) 692 lpfc_set_loopback_flag(phba); 693 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 694 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 696 "0498 Adapter failed to init, mbxCmd x%x " 697 "INIT_LINK, mbxStatus x%x\n", 698 mb->mbxCommand, mb->mbxStatus); 699 if (phba->sli_rev <= LPFC_SLI_REV3) { 700 /* Clear all interrupt enable conditions */ 701 writel(0, phba->HCregaddr); 702 readl(phba->HCregaddr); /* flush */ 703 /* Clear all pending interrupts */ 704 writel(0xffffffff, phba->HAregaddr); 705 readl(phba->HAregaddr); /* flush */ 706 } 707 phba->link_state = LPFC_HBA_ERROR; 708 if (rc != MBX_BUSY || flag == MBX_POLL) 709 mempool_free(pmb, phba->mbox_mem_pool); 710 return -EIO; 711 } 712 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 713 if (flag == MBX_POLL) 714 mempool_free(pmb, phba->mbox_mem_pool); 715 716 return 0; 717 } 718 719 /** 720 * lpfc_hba_down_link - this routine downs the FC link 721 * @phba: pointer to lpfc hba data structure. 722 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 723 * 724 * This routine will issue the DOWN_LINK mailbox command call. 725 * It is available to other drivers through the lpfc_hba data 726 * structure for use to stop the link. 727 * 728 * Return code 729 * 0 - success 730 * Any other value - error 731 **/ 732 int 733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 734 { 735 LPFC_MBOXQ_t *pmb; 736 int rc; 737 738 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 739 if (!pmb) { 740 phba->link_state = LPFC_HBA_ERROR; 741 return -ENOMEM; 742 } 743 744 lpfc_printf_log(phba, 745 KERN_ERR, LOG_INIT, 746 "0491 Adapter Link is disabled.\n"); 747 lpfc_down_link(phba, pmb); 748 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 749 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 750 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 751 lpfc_printf_log(phba, 752 KERN_ERR, LOG_INIT, 753 "2522 Adapter failed to issue DOWN_LINK" 754 " mbox command rc 0x%x\n", rc); 755 756 mempool_free(pmb, phba->mbox_mem_pool); 757 return -EIO; 758 } 759 if (flag == MBX_POLL) 760 mempool_free(pmb, phba->mbox_mem_pool); 761 762 return 0; 763 } 764 765 /** 766 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 767 * @phba: pointer to lpfc HBA data structure. 768 * 769 * This routine will do LPFC uninitialization before the HBA is reset when 770 * bringing down the SLI Layer. 771 * 772 * Return codes 773 * 0 - success. 774 * Any other value - error. 775 **/ 776 int 777 lpfc_hba_down_prep(struct lpfc_hba *phba) 778 { 779 struct lpfc_vport **vports; 780 int i; 781 782 if (phba->sli_rev <= LPFC_SLI_REV3) { 783 /* Disable interrupts */ 784 writel(0, phba->HCregaddr); 785 readl(phba->HCregaddr); /* flush */ 786 } 787 788 if (phba->pport->load_flag & FC_UNLOADING) 789 lpfc_cleanup_discovery_resources(phba->pport); 790 else { 791 vports = lpfc_create_vport_work_array(phba); 792 if (vports != NULL) 793 for (i = 0; i <= phba->max_vports && 794 vports[i] != NULL; i++) 795 lpfc_cleanup_discovery_resources(vports[i]); 796 lpfc_destroy_vport_work_array(phba, vports); 797 } 798 return 0; 799 } 800 801 /** 802 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 803 * @phba: pointer to lpfc HBA data structure. 804 * 805 * This routine will do uninitialization after the HBA is reset when bring 806 * down the SLI Layer. 807 * 808 * Return codes 809 * 0 - success. 810 * Any other value - error. 811 **/ 812 static int 813 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 814 { 815 struct lpfc_sli *psli = &phba->sli; 816 struct lpfc_sli_ring *pring; 817 struct lpfc_dmabuf *mp, *next_mp; 818 LIST_HEAD(completions); 819 int i; 820 821 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 822 lpfc_sli_hbqbuf_free_all(phba); 823 else { 824 /* Cleanup preposted buffers on the ELS ring */ 825 pring = &psli->ring[LPFC_ELS_RING]; 826 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { 827 list_del(&mp->list); 828 pring->postbufq_cnt--; 829 lpfc_mbuf_free(phba, mp->virt, mp->phys); 830 kfree(mp); 831 } 832 } 833 834 spin_lock_irq(&phba->hbalock); 835 for (i = 0; i < psli->num_rings; i++) { 836 pring = &psli->ring[i]; 837 838 /* At this point in time the HBA is either reset or DOA. Either 839 * way, nothing should be on txcmplq as it will NEVER complete. 840 */ 841 list_splice_init(&pring->txcmplq, &completions); 842 pring->txcmplq_cnt = 0; 843 spin_unlock_irq(&phba->hbalock); 844 845 /* Cancel all the IOCBs from the completions list */ 846 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, 847 IOERR_SLI_ABORTED); 848 849 lpfc_sli_abort_iocb_ring(phba, pring); 850 spin_lock_irq(&phba->hbalock); 851 } 852 spin_unlock_irq(&phba->hbalock); 853 854 return 0; 855 } 856 857 /** 858 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 859 * @phba: pointer to lpfc HBA data structure. 860 * 861 * This routine will do uninitialization after the HBA is reset when bring 862 * down the SLI Layer. 863 * 864 * Return codes 865 * 0 - success. 866 * Any other value - error. 867 **/ 868 static int 869 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 870 { 871 struct lpfc_scsi_buf *psb, *psb_next; 872 LIST_HEAD(aborts); 873 int ret; 874 unsigned long iflag = 0; 875 struct lpfc_sglq *sglq_entry = NULL; 876 877 ret = lpfc_hba_down_post_s3(phba); 878 if (ret) 879 return ret; 880 /* At this point in time the HBA is either reset or DOA. Either 881 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 882 * on the lpfc_sgl_list so that it can either be freed if the 883 * driver is unloading or reposted if the driver is restarting 884 * the port. 885 */ 886 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */ 887 /* scsl_buf_list */ 888 /* abts_sgl_list_lock required because worker thread uses this 889 * list. 890 */ 891 spin_lock(&phba->sli4_hba.abts_sgl_list_lock); 892 list_for_each_entry(sglq_entry, 893 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 894 sglq_entry->state = SGL_FREED; 895 896 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 897 &phba->sli4_hba.lpfc_sgl_list); 898 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock); 899 /* abts_scsi_buf_list_lock required because worker thread uses this 900 * list. 901 */ 902 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 903 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 904 &aborts); 905 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 906 spin_unlock_irq(&phba->hbalock); 907 908 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 909 psb->pCmd = NULL; 910 psb->status = IOSTAT_SUCCESS; 911 } 912 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); 913 list_splice(&aborts, &phba->lpfc_scsi_buf_list); 914 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 915 return 0; 916 } 917 918 /** 919 * lpfc_hba_down_post - Wrapper func for hba down post routine 920 * @phba: pointer to lpfc HBA data structure. 921 * 922 * This routine wraps the actual SLI3 or SLI4 routine for performing 923 * uninitialization after the HBA is reset when bring down the SLI Layer. 924 * 925 * Return codes 926 * 0 - success. 927 * Any other value - error. 928 **/ 929 int 930 lpfc_hba_down_post(struct lpfc_hba *phba) 931 { 932 return (*phba->lpfc_hba_down_post)(phba); 933 } 934 935 /** 936 * lpfc_hb_timeout - The HBA-timer timeout handler 937 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 938 * 939 * This is the HBA-timer timeout handler registered to the lpfc driver. When 940 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 941 * work-port-events bitmap and the worker thread is notified. This timeout 942 * event will be used by the worker thread to invoke the actual timeout 943 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 944 * be performed in the timeout handler and the HBA timeout event bit shall 945 * be cleared by the worker thread after it has taken the event bitmap out. 946 **/ 947 static void 948 lpfc_hb_timeout(unsigned long ptr) 949 { 950 struct lpfc_hba *phba; 951 uint32_t tmo_posted; 952 unsigned long iflag; 953 954 phba = (struct lpfc_hba *)ptr; 955 956 /* Check for heart beat timeout conditions */ 957 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 958 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 959 if (!tmo_posted) 960 phba->pport->work_port_events |= WORKER_HB_TMO; 961 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 962 963 /* Tell the worker thread there is work to do */ 964 if (!tmo_posted) 965 lpfc_worker_wake_up(phba); 966 return; 967 } 968 969 /** 970 * lpfc_rrq_timeout - The RRQ-timer timeout handler 971 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 972 * 973 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 974 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 975 * work-port-events bitmap and the worker thread is notified. This timeout 976 * event will be used by the worker thread to invoke the actual timeout 977 * handler routine, lpfc_rrq_handler. Any periodical operations will 978 * be performed in the timeout handler and the RRQ timeout event bit shall 979 * be cleared by the worker thread after it has taken the event bitmap out. 980 **/ 981 static void 982 lpfc_rrq_timeout(unsigned long ptr) 983 { 984 struct lpfc_hba *phba; 985 unsigned long iflag; 986 987 phba = (struct lpfc_hba *)ptr; 988 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 989 phba->hba_flag |= HBA_RRQ_ACTIVE; 990 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 991 lpfc_worker_wake_up(phba); 992 } 993 994 /** 995 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 996 * @phba: pointer to lpfc hba data structure. 997 * @pmboxq: pointer to the driver internal queue element for mailbox command. 998 * 999 * This is the callback function to the lpfc heart-beat mailbox command. 1000 * If configured, the lpfc driver issues the heart-beat mailbox command to 1001 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1002 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1003 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1004 * heart-beat outstanding state. Once the mailbox command comes back and 1005 * no error conditions detected, the heart-beat mailbox command timer is 1006 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1007 * state is cleared for the next heart-beat. If the timer expired with the 1008 * heart-beat outstanding state set, the driver will put the HBA offline. 1009 **/ 1010 static void 1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1012 { 1013 unsigned long drvr_flag; 1014 1015 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1016 phba->hb_outstanding = 0; 1017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1018 1019 /* Check and reset heart-beat timer is necessary */ 1020 mempool_free(pmboxq, phba->mbox_mem_pool); 1021 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1022 !(phba->link_state == LPFC_HBA_ERROR) && 1023 !(phba->pport->load_flag & FC_UNLOADING)) 1024 mod_timer(&phba->hb_tmofunc, 1025 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1026 return; 1027 } 1028 1029 /** 1030 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1031 * @phba: pointer to lpfc hba data structure. 1032 * 1033 * This is the actual HBA-timer timeout handler to be invoked by the worker 1034 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1035 * handler performs any periodic operations needed for the device. If such 1036 * periodic event has already been attended to either in the interrupt handler 1037 * or by processing slow-ring or fast-ring events within the HBA-timer 1038 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1039 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1040 * is configured and there is no heart-beat mailbox command outstanding, a 1041 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1042 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1043 * to offline. 1044 **/ 1045 void 1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1047 { 1048 struct lpfc_vport **vports; 1049 LPFC_MBOXQ_t *pmboxq; 1050 struct lpfc_dmabuf *buf_ptr; 1051 int retval, i; 1052 struct lpfc_sli *psli = &phba->sli; 1053 LIST_HEAD(completions); 1054 1055 vports = lpfc_create_vport_work_array(phba); 1056 if (vports != NULL) 1057 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 1058 lpfc_rcv_seq_check_edtov(vports[i]); 1059 lpfc_destroy_vport_work_array(phba, vports); 1060 1061 if ((phba->link_state == LPFC_HBA_ERROR) || 1062 (phba->pport->load_flag & FC_UNLOADING) || 1063 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1064 return; 1065 1066 spin_lock_irq(&phba->pport->work_port_lock); 1067 1068 if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ, 1069 jiffies)) { 1070 spin_unlock_irq(&phba->pport->work_port_lock); 1071 if (!phba->hb_outstanding) 1072 mod_timer(&phba->hb_tmofunc, 1073 jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 1074 else 1075 mod_timer(&phba->hb_tmofunc, 1076 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1077 return; 1078 } 1079 spin_unlock_irq(&phba->pport->work_port_lock); 1080 1081 if (phba->elsbuf_cnt && 1082 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1083 spin_lock_irq(&phba->hbalock); 1084 list_splice_init(&phba->elsbuf, &completions); 1085 phba->elsbuf_cnt = 0; 1086 phba->elsbuf_prev_cnt = 0; 1087 spin_unlock_irq(&phba->hbalock); 1088 1089 while (!list_empty(&completions)) { 1090 list_remove_head(&completions, buf_ptr, 1091 struct lpfc_dmabuf, list); 1092 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1093 kfree(buf_ptr); 1094 } 1095 } 1096 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1097 1098 /* If there is no heart beat outstanding, issue a heartbeat command */ 1099 if (phba->cfg_enable_hba_heartbeat) { 1100 if (!phba->hb_outstanding) { 1101 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1102 (list_empty(&psli->mboxq))) { 1103 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1104 GFP_KERNEL); 1105 if (!pmboxq) { 1106 mod_timer(&phba->hb_tmofunc, 1107 jiffies + 1108 HZ * LPFC_HB_MBOX_INTERVAL); 1109 return; 1110 } 1111 1112 lpfc_heart_beat(phba, pmboxq); 1113 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1114 pmboxq->vport = phba->pport; 1115 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1116 MBX_NOWAIT); 1117 1118 if (retval != MBX_BUSY && 1119 retval != MBX_SUCCESS) { 1120 mempool_free(pmboxq, 1121 phba->mbox_mem_pool); 1122 mod_timer(&phba->hb_tmofunc, 1123 jiffies + 1124 HZ * LPFC_HB_MBOX_INTERVAL); 1125 return; 1126 } 1127 phba->skipped_hb = 0; 1128 phba->hb_outstanding = 1; 1129 } else if (time_before_eq(phba->last_completion_time, 1130 phba->skipped_hb)) { 1131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1132 "2857 Last completion time not " 1133 " updated in %d ms\n", 1134 jiffies_to_msecs(jiffies 1135 - phba->last_completion_time)); 1136 } else 1137 phba->skipped_hb = jiffies; 1138 1139 mod_timer(&phba->hb_tmofunc, 1140 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1141 return; 1142 } else { 1143 /* 1144 * If heart beat timeout called with hb_outstanding set 1145 * we need to give the hb mailbox cmd a chance to 1146 * complete or TMO. 1147 */ 1148 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1149 "0459 Adapter heartbeat still out" 1150 "standing:last compl time was %d ms.\n", 1151 jiffies_to_msecs(jiffies 1152 - phba->last_completion_time)); 1153 mod_timer(&phba->hb_tmofunc, 1154 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT); 1155 } 1156 } 1157 } 1158 1159 /** 1160 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1161 * @phba: pointer to lpfc hba data structure. 1162 * 1163 * This routine is called to bring the HBA offline when HBA hardware error 1164 * other than Port Error 6 has been detected. 1165 **/ 1166 static void 1167 lpfc_offline_eratt(struct lpfc_hba *phba) 1168 { 1169 struct lpfc_sli *psli = &phba->sli; 1170 1171 spin_lock_irq(&phba->hbalock); 1172 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1173 spin_unlock_irq(&phba->hbalock); 1174 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1175 1176 lpfc_offline(phba); 1177 lpfc_reset_barrier(phba); 1178 spin_lock_irq(&phba->hbalock); 1179 lpfc_sli_brdreset(phba); 1180 spin_unlock_irq(&phba->hbalock); 1181 lpfc_hba_down_post(phba); 1182 lpfc_sli_brdready(phba, HS_MBRDY); 1183 lpfc_unblock_mgmt_io(phba); 1184 phba->link_state = LPFC_HBA_ERROR; 1185 return; 1186 } 1187 1188 /** 1189 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1190 * @phba: pointer to lpfc hba data structure. 1191 * 1192 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1193 * other than Port Error 6 has been detected. 1194 **/ 1195 static void 1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1197 { 1198 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1199 lpfc_offline(phba); 1200 lpfc_sli4_brdreset(phba); 1201 lpfc_hba_down_post(phba); 1202 lpfc_sli4_post_status_check(phba); 1203 lpfc_unblock_mgmt_io(phba); 1204 phba->link_state = LPFC_HBA_ERROR; 1205 } 1206 1207 /** 1208 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1209 * @phba: pointer to lpfc hba data structure. 1210 * 1211 * This routine is invoked to handle the deferred HBA hardware error 1212 * conditions. This type of error is indicated by HBA by setting ER1 1213 * and another ER bit in the host status register. The driver will 1214 * wait until the ER1 bit clears before handling the error condition. 1215 **/ 1216 static void 1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1218 { 1219 uint32_t old_host_status = phba->work_hs; 1220 struct lpfc_sli_ring *pring; 1221 struct lpfc_sli *psli = &phba->sli; 1222 1223 /* If the pci channel is offline, ignore possible errors, 1224 * since we cannot communicate with the pci card anyway. 1225 */ 1226 if (pci_channel_offline(phba->pcidev)) { 1227 spin_lock_irq(&phba->hbalock); 1228 phba->hba_flag &= ~DEFER_ERATT; 1229 spin_unlock_irq(&phba->hbalock); 1230 return; 1231 } 1232 1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1234 "0479 Deferred Adapter Hardware Error " 1235 "Data: x%x x%x x%x\n", 1236 phba->work_hs, 1237 phba->work_status[0], phba->work_status[1]); 1238 1239 spin_lock_irq(&phba->hbalock); 1240 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1241 spin_unlock_irq(&phba->hbalock); 1242 1243 1244 /* 1245 * Firmware stops when it triggred erratt. That could cause the I/Os 1246 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1247 * SCSI layer retry it after re-establishing link. 1248 */ 1249 pring = &psli->ring[psli->fcp_ring]; 1250 lpfc_sli_abort_iocb_ring(phba, pring); 1251 1252 /* 1253 * There was a firmware error. Take the hba offline and then 1254 * attempt to restart it. 1255 */ 1256 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1257 lpfc_offline(phba); 1258 1259 /* Wait for the ER1 bit to clear.*/ 1260 while (phba->work_hs & HS_FFER1) { 1261 msleep(100); 1262 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1263 phba->work_hs = UNPLUG_ERR ; 1264 break; 1265 } 1266 /* If driver is unloading let the worker thread continue */ 1267 if (phba->pport->load_flag & FC_UNLOADING) { 1268 phba->work_hs = 0; 1269 break; 1270 } 1271 } 1272 1273 /* 1274 * This is to ptrotect against a race condition in which 1275 * first write to the host attention register clear the 1276 * host status register. 1277 */ 1278 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1279 phba->work_hs = old_host_status & ~HS_FFER1; 1280 1281 spin_lock_irq(&phba->hbalock); 1282 phba->hba_flag &= ~DEFER_ERATT; 1283 spin_unlock_irq(&phba->hbalock); 1284 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1285 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1286 } 1287 1288 static void 1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1290 { 1291 struct lpfc_board_event_header board_event; 1292 struct Scsi_Host *shost; 1293 1294 board_event.event_type = FC_REG_BOARD_EVENT; 1295 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1296 shost = lpfc_shost_from_vport(phba->pport); 1297 fc_host_post_vendor_event(shost, fc_get_event_number(), 1298 sizeof(board_event), 1299 (char *) &board_event, 1300 LPFC_NL_VENDOR_ID); 1301 } 1302 1303 /** 1304 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1305 * @phba: pointer to lpfc hba data structure. 1306 * 1307 * This routine is invoked to handle the following HBA hardware error 1308 * conditions: 1309 * 1 - HBA error attention interrupt 1310 * 2 - DMA ring index out of range 1311 * 3 - Mailbox command came back as unknown 1312 **/ 1313 static void 1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1315 { 1316 struct lpfc_vport *vport = phba->pport; 1317 struct lpfc_sli *psli = &phba->sli; 1318 struct lpfc_sli_ring *pring; 1319 uint32_t event_data; 1320 unsigned long temperature; 1321 struct temp_event temp_event_data; 1322 struct Scsi_Host *shost; 1323 1324 /* If the pci channel is offline, ignore possible errors, 1325 * since we cannot communicate with the pci card anyway. 1326 */ 1327 if (pci_channel_offline(phba->pcidev)) { 1328 spin_lock_irq(&phba->hbalock); 1329 phba->hba_flag &= ~DEFER_ERATT; 1330 spin_unlock_irq(&phba->hbalock); 1331 return; 1332 } 1333 1334 /* If resets are disabled then leave the HBA alone and return */ 1335 if (!phba->cfg_enable_hba_reset) 1336 return; 1337 1338 /* Send an internal error event to mgmt application */ 1339 lpfc_board_errevt_to_mgmt(phba); 1340 1341 if (phba->hba_flag & DEFER_ERATT) 1342 lpfc_handle_deferred_eratt(phba); 1343 1344 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1345 if (phba->work_hs & HS_FFER6) 1346 /* Re-establishing Link */ 1347 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1348 "1301 Re-establishing Link " 1349 "Data: x%x x%x x%x\n", 1350 phba->work_hs, phba->work_status[0], 1351 phba->work_status[1]); 1352 if (phba->work_hs & HS_FFER8) 1353 /* Device Zeroization */ 1354 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1355 "2861 Host Authentication device " 1356 "zeroization Data:x%x x%x x%x\n", 1357 phba->work_hs, phba->work_status[0], 1358 phba->work_status[1]); 1359 1360 spin_lock_irq(&phba->hbalock); 1361 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1362 spin_unlock_irq(&phba->hbalock); 1363 1364 /* 1365 * Firmware stops when it triggled erratt with HS_FFER6. 1366 * That could cause the I/Os dropped by the firmware. 1367 * Error iocb (I/O) on txcmplq and let the SCSI layer 1368 * retry it after re-establishing link. 1369 */ 1370 pring = &psli->ring[psli->fcp_ring]; 1371 lpfc_sli_abort_iocb_ring(phba, pring); 1372 1373 /* 1374 * There was a firmware error. Take the hba offline and then 1375 * attempt to restart it. 1376 */ 1377 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1378 lpfc_offline(phba); 1379 lpfc_sli_brdrestart(phba); 1380 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1381 lpfc_unblock_mgmt_io(phba); 1382 return; 1383 } 1384 lpfc_unblock_mgmt_io(phba); 1385 } else if (phba->work_hs & HS_CRIT_TEMP) { 1386 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1387 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1388 temp_event_data.event_code = LPFC_CRIT_TEMP; 1389 temp_event_data.data = (uint32_t)temperature; 1390 1391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1392 "0406 Adapter maximum temperature exceeded " 1393 "(%ld), taking this port offline " 1394 "Data: x%x x%x x%x\n", 1395 temperature, phba->work_hs, 1396 phba->work_status[0], phba->work_status[1]); 1397 1398 shost = lpfc_shost_from_vport(phba->pport); 1399 fc_host_post_vendor_event(shost, fc_get_event_number(), 1400 sizeof(temp_event_data), 1401 (char *) &temp_event_data, 1402 SCSI_NL_VID_TYPE_PCI 1403 | PCI_VENDOR_ID_EMULEX); 1404 1405 spin_lock_irq(&phba->hbalock); 1406 phba->over_temp_state = HBA_OVER_TEMP; 1407 spin_unlock_irq(&phba->hbalock); 1408 lpfc_offline_eratt(phba); 1409 1410 } else { 1411 /* The if clause above forces this code path when the status 1412 * failure is a value other than FFER6. Do not call the offline 1413 * twice. This is the adapter hardware error path. 1414 */ 1415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1416 "0457 Adapter Hardware Error " 1417 "Data: x%x x%x x%x\n", 1418 phba->work_hs, 1419 phba->work_status[0], phba->work_status[1]); 1420 1421 event_data = FC_REG_DUMP_EVENT; 1422 shost = lpfc_shost_from_vport(vport); 1423 fc_host_post_vendor_event(shost, fc_get_event_number(), 1424 sizeof(event_data), (char *) &event_data, 1425 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1426 1427 lpfc_offline_eratt(phba); 1428 } 1429 return; 1430 } 1431 1432 /** 1433 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1434 * @phba: pointer to lpfc hba data structure. 1435 * @mbx_action: flag for mailbox shutdown action. 1436 * 1437 * This routine is invoked to perform an SLI4 port PCI function reset in 1438 * response to port status register polling attention. It waits for port 1439 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1440 * During this process, interrupt vectors are freed and later requested 1441 * for handling possible port resource change. 1442 **/ 1443 static int 1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action) 1445 { 1446 int rc; 1447 uint32_t intr_mode; 1448 1449 /* 1450 * On error status condition, driver need to wait for port 1451 * ready before performing reset. 1452 */ 1453 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1454 if (!rc) { 1455 /* need reset: attempt for port recovery */ 1456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1457 "2887 Reset Needed: Attempting Port " 1458 "Recovery...\n"); 1459 lpfc_offline_prep(phba, mbx_action); 1460 lpfc_offline(phba); 1461 /* release interrupt for possible resource change */ 1462 lpfc_sli4_disable_intr(phba); 1463 lpfc_sli_brdrestart(phba); 1464 /* request and enable interrupt */ 1465 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1466 if (intr_mode == LPFC_INTR_ERROR) { 1467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1468 "3175 Failed to enable interrupt\n"); 1469 return -EIO; 1470 } else { 1471 phba->intr_mode = intr_mode; 1472 } 1473 rc = lpfc_online(phba); 1474 if (rc == 0) 1475 lpfc_unblock_mgmt_io(phba); 1476 } 1477 return rc; 1478 } 1479 1480 /** 1481 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1482 * @phba: pointer to lpfc hba data structure. 1483 * 1484 * This routine is invoked to handle the SLI4 HBA hardware error attention 1485 * conditions. 1486 **/ 1487 static void 1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1489 { 1490 struct lpfc_vport *vport = phba->pport; 1491 uint32_t event_data; 1492 struct Scsi_Host *shost; 1493 uint32_t if_type; 1494 struct lpfc_register portstat_reg = {0}; 1495 uint32_t reg_err1, reg_err2; 1496 uint32_t uerrlo_reg, uemasklo_reg; 1497 uint32_t pci_rd_rc1, pci_rd_rc2; 1498 int rc; 1499 1500 /* If the pci channel is offline, ignore possible errors, since 1501 * we cannot communicate with the pci card anyway. 1502 */ 1503 if (pci_channel_offline(phba->pcidev)) 1504 return; 1505 /* If resets are disabled then leave the HBA alone and return */ 1506 if (!phba->cfg_enable_hba_reset) 1507 return; 1508 1509 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1510 switch (if_type) { 1511 case LPFC_SLI_INTF_IF_TYPE_0: 1512 pci_rd_rc1 = lpfc_readl( 1513 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1514 &uerrlo_reg); 1515 pci_rd_rc2 = lpfc_readl( 1516 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1517 &uemasklo_reg); 1518 /* consider PCI bus read error as pci_channel_offline */ 1519 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1520 return; 1521 lpfc_sli4_offline_eratt(phba); 1522 break; 1523 case LPFC_SLI_INTF_IF_TYPE_2: 1524 pci_rd_rc1 = lpfc_readl( 1525 phba->sli4_hba.u.if_type2.STATUSregaddr, 1526 &portstat_reg.word0); 1527 /* consider PCI bus read error as pci_channel_offline */ 1528 if (pci_rd_rc1 == -EIO) { 1529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1530 "3151 PCI bus read access failure: x%x\n", 1531 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1532 return; 1533 } 1534 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1535 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1536 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1537 /* TODO: Register for Overtemp async events. */ 1538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1539 "2889 Port Overtemperature event, " 1540 "taking port offline\n"); 1541 spin_lock_irq(&phba->hbalock); 1542 phba->over_temp_state = HBA_OVER_TEMP; 1543 spin_unlock_irq(&phba->hbalock); 1544 lpfc_sli4_offline_eratt(phba); 1545 break; 1546 } 1547 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1548 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) 1549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1550 "3143 Port Down: Firmware Restarted\n"); 1551 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1552 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1554 "3144 Port Down: Debug Dump\n"); 1555 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1556 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1558 "3145 Port Down: Provisioning\n"); 1559 1560 /* Check port status register for function reset */ 1561 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT); 1562 if (rc == 0) { 1563 /* don't report event on forced debug dump */ 1564 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1565 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1566 return; 1567 else 1568 break; 1569 } 1570 /* fall through for not able to recover */ 1571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1572 "3152 Unrecoverable error, bring the port " 1573 "offline\n"); 1574 lpfc_sli4_offline_eratt(phba); 1575 break; 1576 case LPFC_SLI_INTF_IF_TYPE_1: 1577 default: 1578 break; 1579 } 1580 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1581 "3123 Report dump event to upper layer\n"); 1582 /* Send an internal error event to mgmt application */ 1583 lpfc_board_errevt_to_mgmt(phba); 1584 1585 event_data = FC_REG_DUMP_EVENT; 1586 shost = lpfc_shost_from_vport(vport); 1587 fc_host_post_vendor_event(shost, fc_get_event_number(), 1588 sizeof(event_data), (char *) &event_data, 1589 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1590 } 1591 1592 /** 1593 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1594 * @phba: pointer to lpfc HBA data structure. 1595 * 1596 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1597 * routine from the API jump table function pointer from the lpfc_hba struct. 1598 * 1599 * Return codes 1600 * 0 - success. 1601 * Any other value - error. 1602 **/ 1603 void 1604 lpfc_handle_eratt(struct lpfc_hba *phba) 1605 { 1606 (*phba->lpfc_handle_eratt)(phba); 1607 } 1608 1609 /** 1610 * lpfc_handle_latt - The HBA link event handler 1611 * @phba: pointer to lpfc hba data structure. 1612 * 1613 * This routine is invoked from the worker thread to handle a HBA host 1614 * attention link event. 1615 **/ 1616 void 1617 lpfc_handle_latt(struct lpfc_hba *phba) 1618 { 1619 struct lpfc_vport *vport = phba->pport; 1620 struct lpfc_sli *psli = &phba->sli; 1621 LPFC_MBOXQ_t *pmb; 1622 volatile uint32_t control; 1623 struct lpfc_dmabuf *mp; 1624 int rc = 0; 1625 1626 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1627 if (!pmb) { 1628 rc = 1; 1629 goto lpfc_handle_latt_err_exit; 1630 } 1631 1632 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1633 if (!mp) { 1634 rc = 2; 1635 goto lpfc_handle_latt_free_pmb; 1636 } 1637 1638 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1639 if (!mp->virt) { 1640 rc = 3; 1641 goto lpfc_handle_latt_free_mp; 1642 } 1643 1644 /* Cleanup any outstanding ELS commands */ 1645 lpfc_els_flush_all_cmd(phba); 1646 1647 psli->slistat.link_event++; 1648 lpfc_read_topology(phba, pmb, mp); 1649 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1650 pmb->vport = vport; 1651 /* Block ELS IOCBs until we have processed this mbox command */ 1652 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1653 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1654 if (rc == MBX_NOT_FINISHED) { 1655 rc = 4; 1656 goto lpfc_handle_latt_free_mbuf; 1657 } 1658 1659 /* Clear Link Attention in HA REG */ 1660 spin_lock_irq(&phba->hbalock); 1661 writel(HA_LATT, phba->HAregaddr); 1662 readl(phba->HAregaddr); /* flush */ 1663 spin_unlock_irq(&phba->hbalock); 1664 1665 return; 1666 1667 lpfc_handle_latt_free_mbuf: 1668 phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1669 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1670 lpfc_handle_latt_free_mp: 1671 kfree(mp); 1672 lpfc_handle_latt_free_pmb: 1673 mempool_free(pmb, phba->mbox_mem_pool); 1674 lpfc_handle_latt_err_exit: 1675 /* Enable Link attention interrupts */ 1676 spin_lock_irq(&phba->hbalock); 1677 psli->sli_flag |= LPFC_PROCESS_LA; 1678 control = readl(phba->HCregaddr); 1679 control |= HC_LAINT_ENA; 1680 writel(control, phba->HCregaddr); 1681 readl(phba->HCregaddr); /* flush */ 1682 1683 /* Clear Link Attention in HA REG */ 1684 writel(HA_LATT, phba->HAregaddr); 1685 readl(phba->HAregaddr); /* flush */ 1686 spin_unlock_irq(&phba->hbalock); 1687 lpfc_linkdown(phba); 1688 phba->link_state = LPFC_HBA_ERROR; 1689 1690 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1691 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1692 1693 return; 1694 } 1695 1696 /** 1697 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1698 * @phba: pointer to lpfc hba data structure. 1699 * @vpd: pointer to the vital product data. 1700 * @len: length of the vital product data in bytes. 1701 * 1702 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1703 * an array of characters. In this routine, the ModelName, ProgramType, and 1704 * ModelDesc, etc. fields of the phba data structure will be populated. 1705 * 1706 * Return codes 1707 * 0 - pointer to the VPD passed in is NULL 1708 * 1 - success 1709 **/ 1710 int 1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1712 { 1713 uint8_t lenlo, lenhi; 1714 int Length; 1715 int i, j; 1716 int finished = 0; 1717 int index = 0; 1718 1719 if (!vpd) 1720 return 0; 1721 1722 /* Vital Product */ 1723 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1724 "0455 Vital Product Data: x%x x%x x%x x%x\n", 1725 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 1726 (uint32_t) vpd[3]); 1727 while (!finished && (index < (len - 4))) { 1728 switch (vpd[index]) { 1729 case 0x82: 1730 case 0x91: 1731 index += 1; 1732 lenlo = vpd[index]; 1733 index += 1; 1734 lenhi = vpd[index]; 1735 index += 1; 1736 i = ((((unsigned short)lenhi) << 8) + lenlo); 1737 index += i; 1738 break; 1739 case 0x90: 1740 index += 1; 1741 lenlo = vpd[index]; 1742 index += 1; 1743 lenhi = vpd[index]; 1744 index += 1; 1745 Length = ((((unsigned short)lenhi) << 8) + lenlo); 1746 if (Length > len - index) 1747 Length = len - index; 1748 while (Length > 0) { 1749 /* Look for Serial Number */ 1750 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 1751 index += 2; 1752 i = vpd[index]; 1753 index += 1; 1754 j = 0; 1755 Length -= (3+i); 1756 while(i--) { 1757 phba->SerialNumber[j++] = vpd[index++]; 1758 if (j == 31) 1759 break; 1760 } 1761 phba->SerialNumber[j] = 0; 1762 continue; 1763 } 1764 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 1765 phba->vpd_flag |= VPD_MODEL_DESC; 1766 index += 2; 1767 i = vpd[index]; 1768 index += 1; 1769 j = 0; 1770 Length -= (3+i); 1771 while(i--) { 1772 phba->ModelDesc[j++] = vpd[index++]; 1773 if (j == 255) 1774 break; 1775 } 1776 phba->ModelDesc[j] = 0; 1777 continue; 1778 } 1779 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 1780 phba->vpd_flag |= VPD_MODEL_NAME; 1781 index += 2; 1782 i = vpd[index]; 1783 index += 1; 1784 j = 0; 1785 Length -= (3+i); 1786 while(i--) { 1787 phba->ModelName[j++] = vpd[index++]; 1788 if (j == 79) 1789 break; 1790 } 1791 phba->ModelName[j] = 0; 1792 continue; 1793 } 1794 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 1795 phba->vpd_flag |= VPD_PROGRAM_TYPE; 1796 index += 2; 1797 i = vpd[index]; 1798 index += 1; 1799 j = 0; 1800 Length -= (3+i); 1801 while(i--) { 1802 phba->ProgramType[j++] = vpd[index++]; 1803 if (j == 255) 1804 break; 1805 } 1806 phba->ProgramType[j] = 0; 1807 continue; 1808 } 1809 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 1810 phba->vpd_flag |= VPD_PORT; 1811 index += 2; 1812 i = vpd[index]; 1813 index += 1; 1814 j = 0; 1815 Length -= (3+i); 1816 while(i--) { 1817 if ((phba->sli_rev == LPFC_SLI_REV4) && 1818 (phba->sli4_hba.pport_name_sta == 1819 LPFC_SLI4_PPNAME_GET)) { 1820 j++; 1821 index++; 1822 } else 1823 phba->Port[j++] = vpd[index++]; 1824 if (j == 19) 1825 break; 1826 } 1827 if ((phba->sli_rev != LPFC_SLI_REV4) || 1828 (phba->sli4_hba.pport_name_sta == 1829 LPFC_SLI4_PPNAME_NON)) 1830 phba->Port[j] = 0; 1831 continue; 1832 } 1833 else { 1834 index += 2; 1835 i = vpd[index]; 1836 index += 1; 1837 index += i; 1838 Length -= (3 + i); 1839 } 1840 } 1841 finished = 0; 1842 break; 1843 case 0x78: 1844 finished = 1; 1845 break; 1846 default: 1847 index ++; 1848 break; 1849 } 1850 } 1851 1852 return(1); 1853 } 1854 1855 /** 1856 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 1857 * @phba: pointer to lpfc hba data structure. 1858 * @mdp: pointer to the data structure to hold the derived model name. 1859 * @descp: pointer to the data structure to hold the derived description. 1860 * 1861 * This routine retrieves HBA's description based on its registered PCI device 1862 * ID. The @descp passed into this function points to an array of 256 chars. It 1863 * shall be returned with the model name, maximum speed, and the host bus type. 1864 * The @mdp passed into this function points to an array of 80 chars. When the 1865 * function returns, the @mdp will be filled with the model name. 1866 **/ 1867 static void 1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1869 { 1870 lpfc_vpd_t *vp; 1871 uint16_t dev_id = phba->pcidev->device; 1872 int max_speed; 1873 int GE = 0; 1874 int oneConnect = 0; /* default is not a oneConnect */ 1875 struct { 1876 char *name; 1877 char *bus; 1878 char *function; 1879 } m = {"<Unknown>", "", ""}; 1880 1881 if (mdp && mdp[0] != '\0' 1882 && descp && descp[0] != '\0') 1883 return; 1884 1885 if (phba->lmt & LMT_16Gb) 1886 max_speed = 16; 1887 else if (phba->lmt & LMT_10Gb) 1888 max_speed = 10; 1889 else if (phba->lmt & LMT_8Gb) 1890 max_speed = 8; 1891 else if (phba->lmt & LMT_4Gb) 1892 max_speed = 4; 1893 else if (phba->lmt & LMT_2Gb) 1894 max_speed = 2; 1895 else 1896 max_speed = 1; 1897 1898 vp = &phba->vpd; 1899 1900 switch (dev_id) { 1901 case PCI_DEVICE_ID_FIREFLY: 1902 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1903 break; 1904 case PCI_DEVICE_ID_SUPERFLY: 1905 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1906 m = (typeof(m)){"LP7000", "PCI", 1907 "Fibre Channel Adapter"}; 1908 else 1909 m = (typeof(m)){"LP7000E", "PCI", 1910 "Fibre Channel Adapter"}; 1911 break; 1912 case PCI_DEVICE_ID_DRAGONFLY: 1913 m = (typeof(m)){"LP8000", "PCI", 1914 "Fibre Channel Adapter"}; 1915 break; 1916 case PCI_DEVICE_ID_CENTAUR: 1917 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1918 m = (typeof(m)){"LP9002", "PCI", 1919 "Fibre Channel Adapter"}; 1920 else 1921 m = (typeof(m)){"LP9000", "PCI", 1922 "Fibre Channel Adapter"}; 1923 break; 1924 case PCI_DEVICE_ID_RFLY: 1925 m = (typeof(m)){"LP952", "PCI", 1926 "Fibre Channel Adapter"}; 1927 break; 1928 case PCI_DEVICE_ID_PEGASUS: 1929 m = (typeof(m)){"LP9802", "PCI-X", 1930 "Fibre Channel Adapter"}; 1931 break; 1932 case PCI_DEVICE_ID_THOR: 1933 m = (typeof(m)){"LP10000", "PCI-X", 1934 "Fibre Channel Adapter"}; 1935 break; 1936 case PCI_DEVICE_ID_VIPER: 1937 m = (typeof(m)){"LPX1000", "PCI-X", 1938 "Fibre Channel Adapter"}; 1939 break; 1940 case PCI_DEVICE_ID_PFLY: 1941 m = (typeof(m)){"LP982", "PCI-X", 1942 "Fibre Channel Adapter"}; 1943 break; 1944 case PCI_DEVICE_ID_TFLY: 1945 m = (typeof(m)){"LP1050", "PCI-X", 1946 "Fibre Channel Adapter"}; 1947 break; 1948 case PCI_DEVICE_ID_HELIOS: 1949 m = (typeof(m)){"LP11000", "PCI-X2", 1950 "Fibre Channel Adapter"}; 1951 break; 1952 case PCI_DEVICE_ID_HELIOS_SCSP: 1953 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1954 "Fibre Channel Adapter"}; 1955 break; 1956 case PCI_DEVICE_ID_HELIOS_DCSP: 1957 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1958 "Fibre Channel Adapter"}; 1959 break; 1960 case PCI_DEVICE_ID_NEPTUNE: 1961 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1962 break; 1963 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1964 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1965 break; 1966 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1967 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1968 break; 1969 case PCI_DEVICE_ID_BMID: 1970 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1971 break; 1972 case PCI_DEVICE_ID_BSMB: 1973 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1974 break; 1975 case PCI_DEVICE_ID_ZEPHYR: 1976 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1977 break; 1978 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1979 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1980 break; 1981 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1982 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1983 GE = 1; 1984 break; 1985 case PCI_DEVICE_ID_ZMID: 1986 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1987 break; 1988 case PCI_DEVICE_ID_ZSMB: 1989 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1990 break; 1991 case PCI_DEVICE_ID_LP101: 1992 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1993 break; 1994 case PCI_DEVICE_ID_LP10000S: 1995 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1996 break; 1997 case PCI_DEVICE_ID_LP11000S: 1998 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 1999 break; 2000 case PCI_DEVICE_ID_LPE11000S: 2001 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2002 break; 2003 case PCI_DEVICE_ID_SAT: 2004 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2005 break; 2006 case PCI_DEVICE_ID_SAT_MID: 2007 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2008 break; 2009 case PCI_DEVICE_ID_SAT_SMB: 2010 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2011 break; 2012 case PCI_DEVICE_ID_SAT_DCSP: 2013 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2014 break; 2015 case PCI_DEVICE_ID_SAT_SCSP: 2016 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2017 break; 2018 case PCI_DEVICE_ID_SAT_S: 2019 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2020 break; 2021 case PCI_DEVICE_ID_HORNET: 2022 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2023 GE = 1; 2024 break; 2025 case PCI_DEVICE_ID_PROTEUS_VF: 2026 m = (typeof(m)){"LPev12000", "PCIe IOV", 2027 "Fibre Channel Adapter"}; 2028 break; 2029 case PCI_DEVICE_ID_PROTEUS_PF: 2030 m = (typeof(m)){"LPev12000", "PCIe IOV", 2031 "Fibre Channel Adapter"}; 2032 break; 2033 case PCI_DEVICE_ID_PROTEUS_S: 2034 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2035 "Fibre Channel Adapter"}; 2036 break; 2037 case PCI_DEVICE_ID_TIGERSHARK: 2038 oneConnect = 1; 2039 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2040 break; 2041 case PCI_DEVICE_ID_TOMCAT: 2042 oneConnect = 1; 2043 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2044 break; 2045 case PCI_DEVICE_ID_FALCON: 2046 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2047 "EmulexSecure Fibre"}; 2048 break; 2049 case PCI_DEVICE_ID_BALIUS: 2050 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2051 "Fibre Channel Adapter"}; 2052 break; 2053 case PCI_DEVICE_ID_LANCER_FC: 2054 case PCI_DEVICE_ID_LANCER_FC_VF: 2055 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2056 break; 2057 case PCI_DEVICE_ID_LANCER_FCOE: 2058 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2059 oneConnect = 1; 2060 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2061 break; 2062 default: 2063 m = (typeof(m)){"Unknown", "", ""}; 2064 break; 2065 } 2066 2067 if (mdp && mdp[0] == '\0') 2068 snprintf(mdp, 79,"%s", m.name); 2069 /* 2070 * oneConnect hba requires special processing, they are all initiators 2071 * and we put the port number on the end 2072 */ 2073 if (descp && descp[0] == '\0') { 2074 if (oneConnect) 2075 snprintf(descp, 255, 2076 "Emulex OneConnect %s, %s Initiator, Port %s", 2077 m.name, m.function, 2078 phba->Port); 2079 else 2080 snprintf(descp, 255, 2081 "Emulex %s %d%s %s %s", 2082 m.name, max_speed, (GE) ? "GE" : "Gb", 2083 m.bus, m.function); 2084 } 2085 } 2086 2087 /** 2088 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2089 * @phba: pointer to lpfc hba data structure. 2090 * @pring: pointer to a IOCB ring. 2091 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2092 * 2093 * This routine posts a given number of IOCBs with the associated DMA buffer 2094 * descriptors specified by the cnt argument to the given IOCB ring. 2095 * 2096 * Return codes 2097 * The number of IOCBs NOT able to be posted to the IOCB ring. 2098 **/ 2099 int 2100 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2101 { 2102 IOCB_t *icmd; 2103 struct lpfc_iocbq *iocb; 2104 struct lpfc_dmabuf *mp1, *mp2; 2105 2106 cnt += pring->missbufcnt; 2107 2108 /* While there are buffers to post */ 2109 while (cnt > 0) { 2110 /* Allocate buffer for command iocb */ 2111 iocb = lpfc_sli_get_iocbq(phba); 2112 if (iocb == NULL) { 2113 pring->missbufcnt = cnt; 2114 return cnt; 2115 } 2116 icmd = &iocb->iocb; 2117 2118 /* 2 buffers can be posted per command */ 2119 /* Allocate buffer to post */ 2120 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2121 if (mp1) 2122 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2123 if (!mp1 || !mp1->virt) { 2124 kfree(mp1); 2125 lpfc_sli_release_iocbq(phba, iocb); 2126 pring->missbufcnt = cnt; 2127 return cnt; 2128 } 2129 2130 INIT_LIST_HEAD(&mp1->list); 2131 /* Allocate buffer to post */ 2132 if (cnt > 1) { 2133 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2134 if (mp2) 2135 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2136 &mp2->phys); 2137 if (!mp2 || !mp2->virt) { 2138 kfree(mp2); 2139 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2140 kfree(mp1); 2141 lpfc_sli_release_iocbq(phba, iocb); 2142 pring->missbufcnt = cnt; 2143 return cnt; 2144 } 2145 2146 INIT_LIST_HEAD(&mp2->list); 2147 } else { 2148 mp2 = NULL; 2149 } 2150 2151 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2152 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2153 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2154 icmd->ulpBdeCount = 1; 2155 cnt--; 2156 if (mp2) { 2157 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2158 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2159 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2160 cnt--; 2161 icmd->ulpBdeCount = 2; 2162 } 2163 2164 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2165 icmd->ulpLe = 1; 2166 2167 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2168 IOCB_ERROR) { 2169 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2170 kfree(mp1); 2171 cnt++; 2172 if (mp2) { 2173 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2174 kfree(mp2); 2175 cnt++; 2176 } 2177 lpfc_sli_release_iocbq(phba, iocb); 2178 pring->missbufcnt = cnt; 2179 return cnt; 2180 } 2181 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2182 if (mp2) 2183 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2184 } 2185 pring->missbufcnt = 0; 2186 return 0; 2187 } 2188 2189 /** 2190 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2191 * @phba: pointer to lpfc hba data structure. 2192 * 2193 * This routine posts initial receive IOCB buffers to the ELS ring. The 2194 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2195 * set to 64 IOCBs. 2196 * 2197 * Return codes 2198 * 0 - success (currently always success) 2199 **/ 2200 static int 2201 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2202 { 2203 struct lpfc_sli *psli = &phba->sli; 2204 2205 /* Ring 0, ELS / CT buffers */ 2206 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2207 /* Ring 2 - FCP no buffers needed */ 2208 2209 return 0; 2210 } 2211 2212 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2213 2214 /** 2215 * lpfc_sha_init - Set up initial array of hash table entries 2216 * @HashResultPointer: pointer to an array as hash table. 2217 * 2218 * This routine sets up the initial values to the array of hash table entries 2219 * for the LC HBAs. 2220 **/ 2221 static void 2222 lpfc_sha_init(uint32_t * HashResultPointer) 2223 { 2224 HashResultPointer[0] = 0x67452301; 2225 HashResultPointer[1] = 0xEFCDAB89; 2226 HashResultPointer[2] = 0x98BADCFE; 2227 HashResultPointer[3] = 0x10325476; 2228 HashResultPointer[4] = 0xC3D2E1F0; 2229 } 2230 2231 /** 2232 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2233 * @HashResultPointer: pointer to an initial/result hash table. 2234 * @HashWorkingPointer: pointer to an working hash table. 2235 * 2236 * This routine iterates an initial hash table pointed by @HashResultPointer 2237 * with the values from the working hash table pointeed by @HashWorkingPointer. 2238 * The results are putting back to the initial hash table, returned through 2239 * the @HashResultPointer as the result hash table. 2240 **/ 2241 static void 2242 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2243 { 2244 int t; 2245 uint32_t TEMP; 2246 uint32_t A, B, C, D, E; 2247 t = 16; 2248 do { 2249 HashWorkingPointer[t] = 2250 S(1, 2251 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2252 8] ^ 2253 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2254 } while (++t <= 79); 2255 t = 0; 2256 A = HashResultPointer[0]; 2257 B = HashResultPointer[1]; 2258 C = HashResultPointer[2]; 2259 D = HashResultPointer[3]; 2260 E = HashResultPointer[4]; 2261 2262 do { 2263 if (t < 20) { 2264 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2265 } else if (t < 40) { 2266 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2267 } else if (t < 60) { 2268 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2269 } else { 2270 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2271 } 2272 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2273 E = D; 2274 D = C; 2275 C = S(30, B); 2276 B = A; 2277 A = TEMP; 2278 } while (++t <= 79); 2279 2280 HashResultPointer[0] += A; 2281 HashResultPointer[1] += B; 2282 HashResultPointer[2] += C; 2283 HashResultPointer[3] += D; 2284 HashResultPointer[4] += E; 2285 2286 } 2287 2288 /** 2289 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2290 * @RandomChallenge: pointer to the entry of host challenge random number array. 2291 * @HashWorking: pointer to the entry of the working hash array. 2292 * 2293 * This routine calculates the working hash array referred by @HashWorking 2294 * from the challenge random numbers associated with the host, referred by 2295 * @RandomChallenge. The result is put into the entry of the working hash 2296 * array and returned by reference through @HashWorking. 2297 **/ 2298 static void 2299 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2300 { 2301 *HashWorking = (*RandomChallenge ^ *HashWorking); 2302 } 2303 2304 /** 2305 * lpfc_hba_init - Perform special handling for LC HBA initialization 2306 * @phba: pointer to lpfc hba data structure. 2307 * @hbainit: pointer to an array of unsigned 32-bit integers. 2308 * 2309 * This routine performs the special handling for LC HBA initialization. 2310 **/ 2311 void 2312 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2313 { 2314 int t; 2315 uint32_t *HashWorking; 2316 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2317 2318 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2319 if (!HashWorking) 2320 return; 2321 2322 HashWorking[0] = HashWorking[78] = *pwwnn++; 2323 HashWorking[1] = HashWorking[79] = *pwwnn; 2324 2325 for (t = 0; t < 7; t++) 2326 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2327 2328 lpfc_sha_init(hbainit); 2329 lpfc_sha_iterate(hbainit, HashWorking); 2330 kfree(HashWorking); 2331 } 2332 2333 /** 2334 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2335 * @vport: pointer to a virtual N_Port data structure. 2336 * 2337 * This routine performs the necessary cleanups before deleting the @vport. 2338 * It invokes the discovery state machine to perform necessary state 2339 * transitions and to release the ndlps associated with the @vport. Note, 2340 * the physical port is treated as @vport 0. 2341 **/ 2342 void 2343 lpfc_cleanup(struct lpfc_vport *vport) 2344 { 2345 struct lpfc_hba *phba = vport->phba; 2346 struct lpfc_nodelist *ndlp, *next_ndlp; 2347 int i = 0; 2348 2349 if (phba->link_state > LPFC_LINK_DOWN) 2350 lpfc_port_link_failure(vport); 2351 2352 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2353 if (!NLP_CHK_NODE_ACT(ndlp)) { 2354 ndlp = lpfc_enable_node(vport, ndlp, 2355 NLP_STE_UNUSED_NODE); 2356 if (!ndlp) 2357 continue; 2358 spin_lock_irq(&phba->ndlp_lock); 2359 NLP_SET_FREE_REQ(ndlp); 2360 spin_unlock_irq(&phba->ndlp_lock); 2361 /* Trigger the release of the ndlp memory */ 2362 lpfc_nlp_put(ndlp); 2363 continue; 2364 } 2365 spin_lock_irq(&phba->ndlp_lock); 2366 if (NLP_CHK_FREE_REQ(ndlp)) { 2367 /* The ndlp should not be in memory free mode already */ 2368 spin_unlock_irq(&phba->ndlp_lock); 2369 continue; 2370 } else 2371 /* Indicate request for freeing ndlp memory */ 2372 NLP_SET_FREE_REQ(ndlp); 2373 spin_unlock_irq(&phba->ndlp_lock); 2374 2375 if (vport->port_type != LPFC_PHYSICAL_PORT && 2376 ndlp->nlp_DID == Fabric_DID) { 2377 /* Just free up ndlp with Fabric_DID for vports */ 2378 lpfc_nlp_put(ndlp); 2379 continue; 2380 } 2381 2382 /* take care of nodes in unused state before the state 2383 * machine taking action. 2384 */ 2385 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2386 lpfc_nlp_put(ndlp); 2387 continue; 2388 } 2389 2390 if (ndlp->nlp_type & NLP_FABRIC) 2391 lpfc_disc_state_machine(vport, ndlp, NULL, 2392 NLP_EVT_DEVICE_RECOVERY); 2393 2394 lpfc_disc_state_machine(vport, ndlp, NULL, 2395 NLP_EVT_DEVICE_RM); 2396 } 2397 2398 /* At this point, ALL ndlp's should be gone 2399 * because of the previous NLP_EVT_DEVICE_RM. 2400 * Lets wait for this to happen, if needed. 2401 */ 2402 while (!list_empty(&vport->fc_nodes)) { 2403 if (i++ > 3000) { 2404 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2405 "0233 Nodelist not empty\n"); 2406 list_for_each_entry_safe(ndlp, next_ndlp, 2407 &vport->fc_nodes, nlp_listp) { 2408 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2409 LOG_NODE, 2410 "0282 did:x%x ndlp:x%p " 2411 "usgmap:x%x refcnt:%d\n", 2412 ndlp->nlp_DID, (void *)ndlp, 2413 ndlp->nlp_usg_map, 2414 atomic_read( 2415 &ndlp->kref.refcount)); 2416 } 2417 break; 2418 } 2419 2420 /* Wait for any activity on ndlps to settle */ 2421 msleep(10); 2422 } 2423 lpfc_cleanup_vports_rrqs(vport, NULL); 2424 } 2425 2426 /** 2427 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2428 * @vport: pointer to a virtual N_Port data structure. 2429 * 2430 * This routine stops all the timers associated with a @vport. This function 2431 * is invoked before disabling or deleting a @vport. Note that the physical 2432 * port is treated as @vport 0. 2433 **/ 2434 void 2435 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2436 { 2437 del_timer_sync(&vport->els_tmofunc); 2438 del_timer_sync(&vport->fc_fdmitmo); 2439 del_timer_sync(&vport->delayed_disc_tmo); 2440 lpfc_can_disctmo(vport); 2441 return; 2442 } 2443 2444 /** 2445 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2446 * @phba: pointer to lpfc hba data structure. 2447 * 2448 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2449 * caller of this routine should already hold the host lock. 2450 **/ 2451 void 2452 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2453 { 2454 /* Clear pending FCF rediscovery wait flag */ 2455 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2456 2457 /* Now, try to stop the timer */ 2458 del_timer(&phba->fcf.redisc_wait); 2459 } 2460 2461 /** 2462 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2463 * @phba: pointer to lpfc hba data structure. 2464 * 2465 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2466 * checks whether the FCF rediscovery wait timer is pending with the host 2467 * lock held before proceeding with disabling the timer and clearing the 2468 * wait timer pendig flag. 2469 **/ 2470 void 2471 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2472 { 2473 spin_lock_irq(&phba->hbalock); 2474 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2475 /* FCF rediscovery timer already fired or stopped */ 2476 spin_unlock_irq(&phba->hbalock); 2477 return; 2478 } 2479 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2480 /* Clear failover in progress flags */ 2481 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2482 spin_unlock_irq(&phba->hbalock); 2483 } 2484 2485 /** 2486 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2487 * @phba: pointer to lpfc hba data structure. 2488 * 2489 * This routine stops all the timers associated with a HBA. This function is 2490 * invoked before either putting a HBA offline or unloading the driver. 2491 **/ 2492 void 2493 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2494 { 2495 lpfc_stop_vport_timers(phba->pport); 2496 del_timer_sync(&phba->sli.mbox_tmo); 2497 del_timer_sync(&phba->fabric_block_timer); 2498 del_timer_sync(&phba->eratt_poll); 2499 del_timer_sync(&phba->hb_tmofunc); 2500 if (phba->sli_rev == LPFC_SLI_REV4) { 2501 del_timer_sync(&phba->rrq_tmr); 2502 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2503 } 2504 phba->hb_outstanding = 0; 2505 2506 switch (phba->pci_dev_grp) { 2507 case LPFC_PCI_DEV_LP: 2508 /* Stop any LightPulse device specific driver timers */ 2509 del_timer_sync(&phba->fcp_poll_timer); 2510 break; 2511 case LPFC_PCI_DEV_OC: 2512 /* Stop any OneConnect device sepcific driver timers */ 2513 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2514 break; 2515 default: 2516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2517 "0297 Invalid device group (x%x)\n", 2518 phba->pci_dev_grp); 2519 break; 2520 } 2521 return; 2522 } 2523 2524 /** 2525 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2526 * @phba: pointer to lpfc hba data structure. 2527 * 2528 * This routine marks a HBA's management interface as blocked. Once the HBA's 2529 * management interface is marked as blocked, all the user space access to 2530 * the HBA, whether they are from sysfs interface or libdfc interface will 2531 * all be blocked. The HBA is set to block the management interface when the 2532 * driver prepares the HBA interface for online or offline. 2533 **/ 2534 static void 2535 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2536 { 2537 unsigned long iflag; 2538 uint8_t actcmd = MBX_HEARTBEAT; 2539 unsigned long timeout; 2540 2541 spin_lock_irqsave(&phba->hbalock, iflag); 2542 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2543 spin_unlock_irqrestore(&phba->hbalock, iflag); 2544 if (mbx_action == LPFC_MBX_NO_WAIT) 2545 return; 2546 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2547 spin_lock_irqsave(&phba->hbalock, iflag); 2548 if (phba->sli.mbox_active) { 2549 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2550 /* Determine how long we might wait for the active mailbox 2551 * command to be gracefully completed by firmware. 2552 */ 2553 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2554 phba->sli.mbox_active) * 1000) + jiffies; 2555 } 2556 spin_unlock_irqrestore(&phba->hbalock, iflag); 2557 2558 /* Wait for the outstnading mailbox command to complete */ 2559 while (phba->sli.mbox_active) { 2560 /* Check active mailbox complete status every 2ms */ 2561 msleep(2); 2562 if (time_after(jiffies, timeout)) { 2563 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2564 "2813 Mgmt IO is Blocked %x " 2565 "- mbox cmd %x still active\n", 2566 phba->sli.sli_flag, actcmd); 2567 break; 2568 } 2569 } 2570 } 2571 2572 /** 2573 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2574 * @phba: pointer to lpfc hba data structure. 2575 * 2576 * Allocate RPIs for all active remote nodes. This is needed whenever 2577 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2578 * is to fixup the temporary rpi assignments. 2579 **/ 2580 void 2581 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2582 { 2583 struct lpfc_nodelist *ndlp, *next_ndlp; 2584 struct lpfc_vport **vports; 2585 int i; 2586 2587 if (phba->sli_rev != LPFC_SLI_REV4) 2588 return; 2589 2590 vports = lpfc_create_vport_work_array(phba); 2591 if (vports != NULL) { 2592 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2593 if (vports[i]->load_flag & FC_UNLOADING) 2594 continue; 2595 2596 list_for_each_entry_safe(ndlp, next_ndlp, 2597 &vports[i]->fc_nodes, 2598 nlp_listp) { 2599 if (NLP_CHK_NODE_ACT(ndlp)) 2600 ndlp->nlp_rpi = 2601 lpfc_sli4_alloc_rpi(phba); 2602 } 2603 } 2604 } 2605 lpfc_destroy_vport_work_array(phba, vports); 2606 } 2607 2608 /** 2609 * lpfc_online - Initialize and bring a HBA online 2610 * @phba: pointer to lpfc hba data structure. 2611 * 2612 * This routine initializes the HBA and brings a HBA online. During this 2613 * process, the management interface is blocked to prevent user space access 2614 * to the HBA interfering with the driver initialization. 2615 * 2616 * Return codes 2617 * 0 - successful 2618 * 1 - failed 2619 **/ 2620 int 2621 lpfc_online(struct lpfc_hba *phba) 2622 { 2623 struct lpfc_vport *vport; 2624 struct lpfc_vport **vports; 2625 int i; 2626 2627 if (!phba) 2628 return 0; 2629 vport = phba->pport; 2630 2631 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2632 return 0; 2633 2634 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2635 "0458 Bring Adapter online\n"); 2636 2637 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2638 2639 if (!lpfc_sli_queue_setup(phba)) { 2640 lpfc_unblock_mgmt_io(phba); 2641 return 1; 2642 } 2643 2644 if (phba->sli_rev == LPFC_SLI_REV4) { 2645 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2646 lpfc_unblock_mgmt_io(phba); 2647 return 1; 2648 } 2649 } else { 2650 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2651 lpfc_unblock_mgmt_io(phba); 2652 return 1; 2653 } 2654 } 2655 2656 vports = lpfc_create_vport_work_array(phba); 2657 if (vports != NULL) 2658 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2659 struct Scsi_Host *shost; 2660 shost = lpfc_shost_from_vport(vports[i]); 2661 spin_lock_irq(shost->host_lock); 2662 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2663 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2664 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2665 if (phba->sli_rev == LPFC_SLI_REV4) 2666 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2667 spin_unlock_irq(shost->host_lock); 2668 } 2669 lpfc_destroy_vport_work_array(phba, vports); 2670 2671 lpfc_unblock_mgmt_io(phba); 2672 return 0; 2673 } 2674 2675 /** 2676 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2677 * @phba: pointer to lpfc hba data structure. 2678 * 2679 * This routine marks a HBA's management interface as not blocked. Once the 2680 * HBA's management interface is marked as not blocked, all the user space 2681 * access to the HBA, whether they are from sysfs interface or libdfc 2682 * interface will be allowed. The HBA is set to block the management interface 2683 * when the driver prepares the HBA interface for online or offline and then 2684 * set to unblock the management interface afterwards. 2685 **/ 2686 void 2687 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2688 { 2689 unsigned long iflag; 2690 2691 spin_lock_irqsave(&phba->hbalock, iflag); 2692 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2693 spin_unlock_irqrestore(&phba->hbalock, iflag); 2694 } 2695 2696 /** 2697 * lpfc_offline_prep - Prepare a HBA to be brought offline 2698 * @phba: pointer to lpfc hba data structure. 2699 * 2700 * This routine is invoked to prepare a HBA to be brought offline. It performs 2701 * unregistration login to all the nodes on all vports and flushes the mailbox 2702 * queue to make it ready to be brought offline. 2703 **/ 2704 void 2705 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2706 { 2707 struct lpfc_vport *vport = phba->pport; 2708 struct lpfc_nodelist *ndlp, *next_ndlp; 2709 struct lpfc_vport **vports; 2710 struct Scsi_Host *shost; 2711 int i; 2712 2713 if (vport->fc_flag & FC_OFFLINE_MODE) 2714 return; 2715 2716 lpfc_block_mgmt_io(phba, mbx_action); 2717 2718 lpfc_linkdown(phba); 2719 2720 /* Issue an unreg_login to all nodes on all vports */ 2721 vports = lpfc_create_vport_work_array(phba); 2722 if (vports != NULL) { 2723 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2724 if (vports[i]->load_flag & FC_UNLOADING) 2725 continue; 2726 shost = lpfc_shost_from_vport(vports[i]); 2727 spin_lock_irq(shost->host_lock); 2728 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2729 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2730 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2731 spin_unlock_irq(shost->host_lock); 2732 2733 shost = lpfc_shost_from_vport(vports[i]); 2734 list_for_each_entry_safe(ndlp, next_ndlp, 2735 &vports[i]->fc_nodes, 2736 nlp_listp) { 2737 if (!NLP_CHK_NODE_ACT(ndlp)) 2738 continue; 2739 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2740 continue; 2741 if (ndlp->nlp_type & NLP_FABRIC) { 2742 lpfc_disc_state_machine(vports[i], ndlp, 2743 NULL, NLP_EVT_DEVICE_RECOVERY); 2744 lpfc_disc_state_machine(vports[i], ndlp, 2745 NULL, NLP_EVT_DEVICE_RM); 2746 } 2747 spin_lock_irq(shost->host_lock); 2748 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2749 spin_unlock_irq(shost->host_lock); 2750 /* 2751 * Whenever an SLI4 port goes offline, free the 2752 * RPI. Get a new RPI when the adapter port 2753 * comes back online. 2754 */ 2755 if (phba->sli_rev == LPFC_SLI_REV4) 2756 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2757 lpfc_unreg_rpi(vports[i], ndlp); 2758 } 2759 } 2760 } 2761 lpfc_destroy_vport_work_array(phba, vports); 2762 2763 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2764 } 2765 2766 /** 2767 * lpfc_offline - Bring a HBA offline 2768 * @phba: pointer to lpfc hba data structure. 2769 * 2770 * This routine actually brings a HBA offline. It stops all the timers 2771 * associated with the HBA, brings down the SLI layer, and eventually 2772 * marks the HBA as in offline state for the upper layer protocol. 2773 **/ 2774 void 2775 lpfc_offline(struct lpfc_hba *phba) 2776 { 2777 struct Scsi_Host *shost; 2778 struct lpfc_vport **vports; 2779 int i; 2780 2781 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2782 return; 2783 2784 /* stop port and all timers associated with this hba */ 2785 lpfc_stop_port(phba); 2786 vports = lpfc_create_vport_work_array(phba); 2787 if (vports != NULL) 2788 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2789 lpfc_stop_vport_timers(vports[i]); 2790 lpfc_destroy_vport_work_array(phba, vports); 2791 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2792 "0460 Bring Adapter offline\n"); 2793 /* Bring down the SLI Layer and cleanup. The HBA is offline 2794 now. */ 2795 lpfc_sli_hba_down(phba); 2796 spin_lock_irq(&phba->hbalock); 2797 phba->work_ha = 0; 2798 spin_unlock_irq(&phba->hbalock); 2799 vports = lpfc_create_vport_work_array(phba); 2800 if (vports != NULL) 2801 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2802 shost = lpfc_shost_from_vport(vports[i]); 2803 spin_lock_irq(shost->host_lock); 2804 vports[i]->work_port_events = 0; 2805 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2806 spin_unlock_irq(shost->host_lock); 2807 } 2808 lpfc_destroy_vport_work_array(phba, vports); 2809 } 2810 2811 /** 2812 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2813 * @phba: pointer to lpfc hba data structure. 2814 * 2815 * This routine is to free all the SCSI buffers and IOCBs from the driver 2816 * list back to kernel. It is called from lpfc_pci_remove_one to free 2817 * the internal resources before the device is removed from the system. 2818 **/ 2819 static void 2820 lpfc_scsi_free(struct lpfc_hba *phba) 2821 { 2822 struct lpfc_scsi_buf *sb, *sb_next; 2823 struct lpfc_iocbq *io, *io_next; 2824 2825 spin_lock_irq(&phba->hbalock); 2826 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2827 spin_lock(&phba->scsi_buf_list_lock); 2828 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2829 list_del(&sb->list); 2830 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2831 sb->dma_handle); 2832 kfree(sb); 2833 phba->total_scsi_bufs--; 2834 } 2835 spin_unlock(&phba->scsi_buf_list_lock); 2836 2837 /* Release all the lpfc_iocbq entries maintained by this host. */ 2838 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2839 list_del(&io->list); 2840 kfree(io); 2841 phba->total_iocbq_bufs--; 2842 } 2843 2844 spin_unlock_irq(&phba->hbalock); 2845 } 2846 2847 /** 2848 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2849 * @phba: pointer to lpfc hba data structure. 2850 * 2851 * This routine first calculates the sizes of the current els and allocated 2852 * scsi sgl lists, and then goes through all sgls to updates the physical 2853 * XRIs assigned due to port function reset. During port initialization, the 2854 * current els and allocated scsi sgl lists are 0s. 2855 * 2856 * Return codes 2857 * 0 - successful (for now, it always returns 0) 2858 **/ 2859 int 2860 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2861 { 2862 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2863 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2864 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2865 LIST_HEAD(els_sgl_list); 2866 LIST_HEAD(scsi_sgl_list); 2867 int rc; 2868 2869 /* 2870 * update on pci function's els xri-sgl list 2871 */ 2872 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2873 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2874 /* els xri-sgl expanded */ 2875 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2876 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2877 "3157 ELS xri-sgl count increased from " 2878 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2879 els_xri_cnt); 2880 /* allocate the additional els sgls */ 2881 for (i = 0; i < xri_cnt; i++) { 2882 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2883 GFP_KERNEL); 2884 if (sglq_entry == NULL) { 2885 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2886 "2562 Failure to allocate an " 2887 "ELS sgl entry:%d\n", i); 2888 rc = -ENOMEM; 2889 goto out_free_mem; 2890 } 2891 sglq_entry->buff_type = GEN_BUFF_TYPE; 2892 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2893 &sglq_entry->phys); 2894 if (sglq_entry->virt == NULL) { 2895 kfree(sglq_entry); 2896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2897 "2563 Failure to allocate an " 2898 "ELS mbuf:%d\n", i); 2899 rc = -ENOMEM; 2900 goto out_free_mem; 2901 } 2902 sglq_entry->sgl = sglq_entry->virt; 2903 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2904 sglq_entry->state = SGL_FREED; 2905 list_add_tail(&sglq_entry->list, &els_sgl_list); 2906 } 2907 spin_lock(&phba->hbalock); 2908 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2909 spin_unlock(&phba->hbalock); 2910 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2911 /* els xri-sgl shrinked */ 2912 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2913 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2914 "3158 ELS xri-sgl count decreased from " 2915 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2916 els_xri_cnt); 2917 spin_lock_irq(&phba->hbalock); 2918 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2919 spin_unlock_irq(&phba->hbalock); 2920 /* release extra els sgls from list */ 2921 for (i = 0; i < xri_cnt; i++) { 2922 list_remove_head(&els_sgl_list, 2923 sglq_entry, struct lpfc_sglq, list); 2924 if (sglq_entry) { 2925 lpfc_mbuf_free(phba, sglq_entry->virt, 2926 sglq_entry->phys); 2927 kfree(sglq_entry); 2928 } 2929 } 2930 spin_lock_irq(&phba->hbalock); 2931 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2932 spin_unlock_irq(&phba->hbalock); 2933 } else 2934 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2935 "3163 ELS xri-sgl count unchanged: %d\n", 2936 els_xri_cnt); 2937 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2938 2939 /* update xris to els sgls on the list */ 2940 sglq_entry = NULL; 2941 sglq_entry_next = NULL; 2942 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2943 &phba->sli4_hba.lpfc_sgl_list, list) { 2944 lxri = lpfc_sli4_next_xritag(phba); 2945 if (lxri == NO_XRI) { 2946 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2947 "2400 Failed to allocate xri for " 2948 "ELS sgl\n"); 2949 rc = -ENOMEM; 2950 goto out_free_mem; 2951 } 2952 sglq_entry->sli4_lxritag = lxri; 2953 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 2954 } 2955 2956 /* 2957 * update on pci function's allocated scsi xri-sgl list 2958 */ 2959 phba->total_scsi_bufs = 0; 2960 2961 /* maximum number of xris available for scsi buffers */ 2962 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 2963 els_xri_cnt; 2964 2965 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2966 "2401 Current allocated SCSI xri-sgl count:%d, " 2967 "maximum SCSI xri count:%d\n", 2968 phba->sli4_hba.scsi_xri_cnt, 2969 phba->sli4_hba.scsi_xri_max); 2970 2971 spin_lock_irq(&phba->scsi_buf_list_lock); 2972 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list); 2973 spin_unlock_irq(&phba->scsi_buf_list_lock); 2974 2975 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 2976 /* max scsi xri shrinked below the allocated scsi buffers */ 2977 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 2978 phba->sli4_hba.scsi_xri_max; 2979 /* release the extra allocated scsi buffers */ 2980 for (i = 0; i < scsi_xri_cnt; i++) { 2981 list_remove_head(&scsi_sgl_list, psb, 2982 struct lpfc_scsi_buf, list); 2983 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 2984 psb->dma_handle); 2985 kfree(psb); 2986 } 2987 spin_lock_irq(&phba->scsi_buf_list_lock); 2988 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 2989 spin_unlock_irq(&phba->scsi_buf_list_lock); 2990 } 2991 2992 /* update xris associated to remaining allocated scsi buffers */ 2993 psb = NULL; 2994 psb_next = NULL; 2995 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 2996 lxri = lpfc_sli4_next_xritag(phba); 2997 if (lxri == NO_XRI) { 2998 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2999 "2560 Failed to allocate xri for " 3000 "scsi buffer\n"); 3001 rc = -ENOMEM; 3002 goto out_free_mem; 3003 } 3004 psb->cur_iocbq.sli4_lxritag = lxri; 3005 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3006 } 3007 spin_lock(&phba->scsi_buf_list_lock); 3008 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list); 3009 spin_unlock(&phba->scsi_buf_list_lock); 3010 3011 return 0; 3012 3013 out_free_mem: 3014 lpfc_free_els_sgl_list(phba); 3015 lpfc_scsi_free(phba); 3016 return rc; 3017 } 3018 3019 /** 3020 * lpfc_create_port - Create an FC port 3021 * @phba: pointer to lpfc hba data structure. 3022 * @instance: a unique integer ID to this FC port. 3023 * @dev: pointer to the device data structure. 3024 * 3025 * This routine creates a FC port for the upper layer protocol. The FC port 3026 * can be created on top of either a physical port or a virtual port provided 3027 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3028 * and associates the FC port created before adding the shost into the SCSI 3029 * layer. 3030 * 3031 * Return codes 3032 * @vport - pointer to the virtual N_Port data structure. 3033 * NULL - port create failed. 3034 **/ 3035 struct lpfc_vport * 3036 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3037 { 3038 struct lpfc_vport *vport; 3039 struct Scsi_Host *shost; 3040 int error = 0; 3041 3042 if (dev != &phba->pcidev->dev) 3043 shost = scsi_host_alloc(&lpfc_vport_template, 3044 sizeof(struct lpfc_vport)); 3045 else 3046 shost = scsi_host_alloc(&lpfc_template, 3047 sizeof(struct lpfc_vport)); 3048 if (!shost) 3049 goto out; 3050 3051 vport = (struct lpfc_vport *) shost->hostdata; 3052 vport->phba = phba; 3053 vport->load_flag |= FC_LOADING; 3054 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3055 vport->fc_rscn_flush = 0; 3056 3057 lpfc_get_vport_cfgparam(vport); 3058 shost->unique_id = instance; 3059 shost->max_id = LPFC_MAX_TARGET; 3060 shost->max_lun = vport->cfg_max_luns; 3061 shost->this_id = -1; 3062 shost->max_cmd_len = 16; 3063 if (phba->sli_rev == LPFC_SLI_REV4) { 3064 shost->dma_boundary = 3065 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3066 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3067 } 3068 3069 /* 3070 * Set initial can_queue value since 0 is no longer supported and 3071 * scsi_add_host will fail. This will be adjusted later based on the 3072 * max xri value determined in hba setup. 3073 */ 3074 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3075 if (dev != &phba->pcidev->dev) { 3076 shost->transportt = lpfc_vport_transport_template; 3077 vport->port_type = LPFC_NPIV_PORT; 3078 } else { 3079 shost->transportt = lpfc_transport_template; 3080 vport->port_type = LPFC_PHYSICAL_PORT; 3081 } 3082 3083 /* Initialize all internally managed lists. */ 3084 INIT_LIST_HEAD(&vport->fc_nodes); 3085 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3086 spin_lock_init(&vport->work_port_lock); 3087 3088 init_timer(&vport->fc_disctmo); 3089 vport->fc_disctmo.function = lpfc_disc_timeout; 3090 vport->fc_disctmo.data = (unsigned long)vport; 3091 3092 init_timer(&vport->fc_fdmitmo); 3093 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3094 vport->fc_fdmitmo.data = (unsigned long)vport; 3095 3096 init_timer(&vport->els_tmofunc); 3097 vport->els_tmofunc.function = lpfc_els_timeout; 3098 vport->els_tmofunc.data = (unsigned long)vport; 3099 3100 init_timer(&vport->delayed_disc_tmo); 3101 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3102 vport->delayed_disc_tmo.data = (unsigned long)vport; 3103 3104 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3105 if (error) 3106 goto out_put_shost; 3107 3108 spin_lock_irq(&phba->hbalock); 3109 list_add_tail(&vport->listentry, &phba->port_list); 3110 spin_unlock_irq(&phba->hbalock); 3111 return vport; 3112 3113 out_put_shost: 3114 scsi_host_put(shost); 3115 out: 3116 return NULL; 3117 } 3118 3119 /** 3120 * destroy_port - destroy an FC port 3121 * @vport: pointer to an lpfc virtual N_Port data structure. 3122 * 3123 * This routine destroys a FC port from the upper layer protocol. All the 3124 * resources associated with the port are released. 3125 **/ 3126 void 3127 destroy_port(struct lpfc_vport *vport) 3128 { 3129 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3130 struct lpfc_hba *phba = vport->phba; 3131 3132 lpfc_debugfs_terminate(vport); 3133 fc_remove_host(shost); 3134 scsi_remove_host(shost); 3135 3136 spin_lock_irq(&phba->hbalock); 3137 list_del_init(&vport->listentry); 3138 spin_unlock_irq(&phba->hbalock); 3139 3140 lpfc_cleanup(vport); 3141 return; 3142 } 3143 3144 /** 3145 * lpfc_get_instance - Get a unique integer ID 3146 * 3147 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3148 * uses the kernel idr facility to perform the task. 3149 * 3150 * Return codes: 3151 * instance - a unique integer ID allocated as the new instance. 3152 * -1 - lpfc get instance failed. 3153 **/ 3154 int 3155 lpfc_get_instance(void) 3156 { 3157 int instance = 0; 3158 3159 /* Assign an unused number */ 3160 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 3161 return -1; 3162 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 3163 return -1; 3164 return instance; 3165 } 3166 3167 /** 3168 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3169 * @shost: pointer to SCSI host data structure. 3170 * @time: elapsed time of the scan in jiffies. 3171 * 3172 * This routine is called by the SCSI layer with a SCSI host to determine 3173 * whether the scan host is finished. 3174 * 3175 * Note: there is no scan_start function as adapter initialization will have 3176 * asynchronously kicked off the link initialization. 3177 * 3178 * Return codes 3179 * 0 - SCSI host scan is not over yet. 3180 * 1 - SCSI host scan is over. 3181 **/ 3182 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3183 { 3184 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3185 struct lpfc_hba *phba = vport->phba; 3186 int stat = 0; 3187 3188 spin_lock_irq(shost->host_lock); 3189 3190 if (vport->load_flag & FC_UNLOADING) { 3191 stat = 1; 3192 goto finished; 3193 } 3194 if (time >= 30 * HZ) { 3195 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3196 "0461 Scanning longer than 30 " 3197 "seconds. Continuing initialization\n"); 3198 stat = 1; 3199 goto finished; 3200 } 3201 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3203 "0465 Link down longer than 15 " 3204 "seconds. Continuing initialization\n"); 3205 stat = 1; 3206 goto finished; 3207 } 3208 3209 if (vport->port_state != LPFC_VPORT_READY) 3210 goto finished; 3211 if (vport->num_disc_nodes || vport->fc_prli_sent) 3212 goto finished; 3213 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3214 goto finished; 3215 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3216 goto finished; 3217 3218 stat = 1; 3219 3220 finished: 3221 spin_unlock_irq(shost->host_lock); 3222 return stat; 3223 } 3224 3225 /** 3226 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3227 * @shost: pointer to SCSI host data structure. 3228 * 3229 * This routine initializes a given SCSI host attributes on a FC port. The 3230 * SCSI host can be either on top of a physical port or a virtual port. 3231 **/ 3232 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3233 { 3234 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3235 struct lpfc_hba *phba = vport->phba; 3236 /* 3237 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3238 */ 3239 3240 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3241 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3242 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3243 3244 memset(fc_host_supported_fc4s(shost), 0, 3245 sizeof(fc_host_supported_fc4s(shost))); 3246 fc_host_supported_fc4s(shost)[2] = 1; 3247 fc_host_supported_fc4s(shost)[7] = 1; 3248 3249 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3250 sizeof fc_host_symbolic_name(shost)); 3251 3252 fc_host_supported_speeds(shost) = 0; 3253 if (phba->lmt & LMT_16Gb) 3254 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3255 if (phba->lmt & LMT_10Gb) 3256 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3257 if (phba->lmt & LMT_8Gb) 3258 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3259 if (phba->lmt & LMT_4Gb) 3260 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3261 if (phba->lmt & LMT_2Gb) 3262 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3263 if (phba->lmt & LMT_1Gb) 3264 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3265 3266 fc_host_maxframe_size(shost) = 3267 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3268 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3269 3270 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3271 3272 /* This value is also unchanging */ 3273 memset(fc_host_active_fc4s(shost), 0, 3274 sizeof(fc_host_active_fc4s(shost))); 3275 fc_host_active_fc4s(shost)[2] = 1; 3276 fc_host_active_fc4s(shost)[7] = 1; 3277 3278 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3279 spin_lock_irq(shost->host_lock); 3280 vport->load_flag &= ~FC_LOADING; 3281 spin_unlock_irq(shost->host_lock); 3282 } 3283 3284 /** 3285 * lpfc_stop_port_s3 - Stop SLI3 device port 3286 * @phba: pointer to lpfc hba data structure. 3287 * 3288 * This routine is invoked to stop an SLI3 device port, it stops the device 3289 * from generating interrupts and stops the device driver's timers for the 3290 * device. 3291 **/ 3292 static void 3293 lpfc_stop_port_s3(struct lpfc_hba *phba) 3294 { 3295 /* Clear all interrupt enable conditions */ 3296 writel(0, phba->HCregaddr); 3297 readl(phba->HCregaddr); /* flush */ 3298 /* Clear all pending interrupts */ 3299 writel(0xffffffff, phba->HAregaddr); 3300 readl(phba->HAregaddr); /* flush */ 3301 3302 /* Reset some HBA SLI setup states */ 3303 lpfc_stop_hba_timers(phba); 3304 phba->pport->work_port_events = 0; 3305 } 3306 3307 /** 3308 * lpfc_stop_port_s4 - Stop SLI4 device port 3309 * @phba: pointer to lpfc hba data structure. 3310 * 3311 * This routine is invoked to stop an SLI4 device port, it stops the device 3312 * from generating interrupts and stops the device driver's timers for the 3313 * device. 3314 **/ 3315 static void 3316 lpfc_stop_port_s4(struct lpfc_hba *phba) 3317 { 3318 /* Reset some HBA SLI4 setup states */ 3319 lpfc_stop_hba_timers(phba); 3320 phba->pport->work_port_events = 0; 3321 phba->sli4_hba.intr_enable = 0; 3322 } 3323 3324 /** 3325 * lpfc_stop_port - Wrapper function for stopping hba port 3326 * @phba: Pointer to HBA context object. 3327 * 3328 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3329 * the API jump table function pointer from the lpfc_hba struct. 3330 **/ 3331 void 3332 lpfc_stop_port(struct lpfc_hba *phba) 3333 { 3334 phba->lpfc_stop_port(phba); 3335 } 3336 3337 /** 3338 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3339 * @phba: Pointer to hba for which this call is being executed. 3340 * 3341 * This routine starts the timer waiting for the FCF rediscovery to complete. 3342 **/ 3343 void 3344 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3345 { 3346 unsigned long fcf_redisc_wait_tmo = 3347 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3348 /* Start fcf rediscovery wait period timer */ 3349 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3350 spin_lock_irq(&phba->hbalock); 3351 /* Allow action to new fcf asynchronous event */ 3352 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3353 /* Mark the FCF rediscovery pending state */ 3354 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3355 spin_unlock_irq(&phba->hbalock); 3356 } 3357 3358 /** 3359 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3360 * @ptr: Map to lpfc_hba data structure pointer. 3361 * 3362 * This routine is invoked when waiting for FCF table rediscover has been 3363 * timed out. If new FCF record(s) has (have) been discovered during the 3364 * wait period, a new FCF event shall be added to the FCOE async event 3365 * list, and then worker thread shall be waked up for processing from the 3366 * worker thread context. 3367 **/ 3368 void 3369 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3370 { 3371 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3372 3373 /* Don't send FCF rediscovery event if timer cancelled */ 3374 spin_lock_irq(&phba->hbalock); 3375 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3376 spin_unlock_irq(&phba->hbalock); 3377 return; 3378 } 3379 /* Clear FCF rediscovery timer pending flag */ 3380 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3381 /* FCF rediscovery event to worker thread */ 3382 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3383 spin_unlock_irq(&phba->hbalock); 3384 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3385 "2776 FCF rediscover quiescent timer expired\n"); 3386 /* wake up worker thread */ 3387 lpfc_worker_wake_up(phba); 3388 } 3389 3390 /** 3391 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3392 * @phba: pointer to lpfc hba data structure. 3393 * @acqe_link: pointer to the async link completion queue entry. 3394 * 3395 * This routine is to parse the SLI4 link-attention link fault code and 3396 * translate it into the base driver's read link attention mailbox command 3397 * status. 3398 * 3399 * Return: Link-attention status in terms of base driver's coding. 3400 **/ 3401 static uint16_t 3402 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3403 struct lpfc_acqe_link *acqe_link) 3404 { 3405 uint16_t latt_fault; 3406 3407 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3408 case LPFC_ASYNC_LINK_FAULT_NONE: 3409 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3410 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3411 latt_fault = 0; 3412 break; 3413 default: 3414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3415 "0398 Invalid link fault code: x%x\n", 3416 bf_get(lpfc_acqe_link_fault, acqe_link)); 3417 latt_fault = MBXERR_ERROR; 3418 break; 3419 } 3420 return latt_fault; 3421 } 3422 3423 /** 3424 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3425 * @phba: pointer to lpfc hba data structure. 3426 * @acqe_link: pointer to the async link completion queue entry. 3427 * 3428 * This routine is to parse the SLI4 link attention type and translate it 3429 * into the base driver's link attention type coding. 3430 * 3431 * Return: Link attention type in terms of base driver's coding. 3432 **/ 3433 static uint8_t 3434 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3435 struct lpfc_acqe_link *acqe_link) 3436 { 3437 uint8_t att_type; 3438 3439 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3440 case LPFC_ASYNC_LINK_STATUS_DOWN: 3441 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3442 att_type = LPFC_ATT_LINK_DOWN; 3443 break; 3444 case LPFC_ASYNC_LINK_STATUS_UP: 3445 /* Ignore physical link up events - wait for logical link up */ 3446 att_type = LPFC_ATT_RESERVED; 3447 break; 3448 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3449 att_type = LPFC_ATT_LINK_UP; 3450 break; 3451 default: 3452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3453 "0399 Invalid link attention type: x%x\n", 3454 bf_get(lpfc_acqe_link_status, acqe_link)); 3455 att_type = LPFC_ATT_RESERVED; 3456 break; 3457 } 3458 return att_type; 3459 } 3460 3461 /** 3462 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3463 * @phba: pointer to lpfc hba data structure. 3464 * @acqe_link: pointer to the async link completion queue entry. 3465 * 3466 * This routine is to parse the SLI4 link-attention link speed and translate 3467 * it into the base driver's link-attention link speed coding. 3468 * 3469 * Return: Link-attention link speed in terms of base driver's coding. 3470 **/ 3471 static uint8_t 3472 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3473 struct lpfc_acqe_link *acqe_link) 3474 { 3475 uint8_t link_speed; 3476 3477 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3478 case LPFC_ASYNC_LINK_SPEED_ZERO: 3479 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3480 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3481 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3482 break; 3483 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3484 link_speed = LPFC_LINK_SPEED_1GHZ; 3485 break; 3486 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3487 link_speed = LPFC_LINK_SPEED_10GHZ; 3488 break; 3489 default: 3490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3491 "0483 Invalid link-attention link speed: x%x\n", 3492 bf_get(lpfc_acqe_link_speed, acqe_link)); 3493 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3494 break; 3495 } 3496 return link_speed; 3497 } 3498 3499 /** 3500 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3501 * @phba: pointer to lpfc hba data structure. 3502 * @acqe_link: pointer to the async link completion queue entry. 3503 * 3504 * This routine is to handle the SLI4 asynchronous FCoE link event. 3505 **/ 3506 static void 3507 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3508 struct lpfc_acqe_link *acqe_link) 3509 { 3510 struct lpfc_dmabuf *mp; 3511 LPFC_MBOXQ_t *pmb; 3512 MAILBOX_t *mb; 3513 struct lpfc_mbx_read_top *la; 3514 uint8_t att_type; 3515 int rc; 3516 3517 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3518 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3519 return; 3520 phba->fcoe_eventtag = acqe_link->event_tag; 3521 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3522 if (!pmb) { 3523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3524 "0395 The mboxq allocation failed\n"); 3525 return; 3526 } 3527 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3528 if (!mp) { 3529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3530 "0396 The lpfc_dmabuf allocation failed\n"); 3531 goto out_free_pmb; 3532 } 3533 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3534 if (!mp->virt) { 3535 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3536 "0397 The mbuf allocation failed\n"); 3537 goto out_free_dmabuf; 3538 } 3539 3540 /* Cleanup any outstanding ELS commands */ 3541 lpfc_els_flush_all_cmd(phba); 3542 3543 /* Block ELS IOCBs until we have done process link event */ 3544 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3545 3546 /* Update link event statistics */ 3547 phba->sli.slistat.link_event++; 3548 3549 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3550 lpfc_read_topology(phba, pmb, mp); 3551 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3552 pmb->vport = phba->pport; 3553 3554 /* Keep the link status for extra SLI4 state machine reference */ 3555 phba->sli4_hba.link_state.speed = 3556 bf_get(lpfc_acqe_link_speed, acqe_link); 3557 phba->sli4_hba.link_state.duplex = 3558 bf_get(lpfc_acqe_link_duplex, acqe_link); 3559 phba->sli4_hba.link_state.status = 3560 bf_get(lpfc_acqe_link_status, acqe_link); 3561 phba->sli4_hba.link_state.type = 3562 bf_get(lpfc_acqe_link_type, acqe_link); 3563 phba->sli4_hba.link_state.number = 3564 bf_get(lpfc_acqe_link_number, acqe_link); 3565 phba->sli4_hba.link_state.fault = 3566 bf_get(lpfc_acqe_link_fault, acqe_link); 3567 phba->sli4_hba.link_state.logical_speed = 3568 bf_get(lpfc_acqe_logical_link_speed, acqe_link); 3569 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3570 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3571 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3572 "Logical speed:%dMbps Fault:%d\n", 3573 phba->sli4_hba.link_state.speed, 3574 phba->sli4_hba.link_state.topology, 3575 phba->sli4_hba.link_state.status, 3576 phba->sli4_hba.link_state.type, 3577 phba->sli4_hba.link_state.number, 3578 phba->sli4_hba.link_state.logical_speed * 10, 3579 phba->sli4_hba.link_state.fault); 3580 /* 3581 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3582 * topology info. Note: Optional for non FC-AL ports. 3583 */ 3584 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3585 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3586 if (rc == MBX_NOT_FINISHED) 3587 goto out_free_dmabuf; 3588 return; 3589 } 3590 /* 3591 * For FCoE Mode: fill in all the topology information we need and call 3592 * the READ_TOPOLOGY completion routine to continue without actually 3593 * sending the READ_TOPOLOGY mailbox command to the port. 3594 */ 3595 /* Parse and translate status field */ 3596 mb = &pmb->u.mb; 3597 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3598 3599 /* Parse and translate link attention fields */ 3600 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3601 la->eventTag = acqe_link->event_tag; 3602 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3603 bf_set(lpfc_mbx_read_top_link_spd, la, 3604 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3605 3606 /* Fake the the following irrelvant fields */ 3607 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3608 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3609 bf_set(lpfc_mbx_read_top_il, la, 0); 3610 bf_set(lpfc_mbx_read_top_pb, la, 0); 3611 bf_set(lpfc_mbx_read_top_fa, la, 0); 3612 bf_set(lpfc_mbx_read_top_mm, la, 0); 3613 3614 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3615 lpfc_mbx_cmpl_read_topology(phba, pmb); 3616 3617 return; 3618 3619 out_free_dmabuf: 3620 kfree(mp); 3621 out_free_pmb: 3622 mempool_free(pmb, phba->mbox_mem_pool); 3623 } 3624 3625 /** 3626 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3627 * @phba: pointer to lpfc hba data structure. 3628 * @acqe_fc: pointer to the async fc completion queue entry. 3629 * 3630 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3631 * that the event was received and then issue a read_topology mailbox command so 3632 * that the rest of the driver will treat it the same as SLI3. 3633 **/ 3634 static void 3635 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3636 { 3637 struct lpfc_dmabuf *mp; 3638 LPFC_MBOXQ_t *pmb; 3639 int rc; 3640 3641 if (bf_get(lpfc_trailer_type, acqe_fc) != 3642 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3644 "2895 Non FC link Event detected.(%d)\n", 3645 bf_get(lpfc_trailer_type, acqe_fc)); 3646 return; 3647 } 3648 /* Keep the link status for extra SLI4 state machine reference */ 3649 phba->sli4_hba.link_state.speed = 3650 bf_get(lpfc_acqe_fc_la_speed, acqe_fc); 3651 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3652 phba->sli4_hba.link_state.topology = 3653 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3654 phba->sli4_hba.link_state.status = 3655 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3656 phba->sli4_hba.link_state.type = 3657 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3658 phba->sli4_hba.link_state.number = 3659 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3660 phba->sli4_hba.link_state.fault = 3661 bf_get(lpfc_acqe_link_fault, acqe_fc); 3662 phba->sli4_hba.link_state.logical_speed = 3663 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc); 3664 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3665 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3666 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3667 "%dMbps Fault:%d\n", 3668 phba->sli4_hba.link_state.speed, 3669 phba->sli4_hba.link_state.topology, 3670 phba->sli4_hba.link_state.status, 3671 phba->sli4_hba.link_state.type, 3672 phba->sli4_hba.link_state.number, 3673 phba->sli4_hba.link_state.logical_speed * 10, 3674 phba->sli4_hba.link_state.fault); 3675 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3676 if (!pmb) { 3677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3678 "2897 The mboxq allocation failed\n"); 3679 return; 3680 } 3681 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3682 if (!mp) { 3683 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3684 "2898 The lpfc_dmabuf allocation failed\n"); 3685 goto out_free_pmb; 3686 } 3687 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3688 if (!mp->virt) { 3689 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3690 "2899 The mbuf allocation failed\n"); 3691 goto out_free_dmabuf; 3692 } 3693 3694 /* Cleanup any outstanding ELS commands */ 3695 lpfc_els_flush_all_cmd(phba); 3696 3697 /* Block ELS IOCBs until we have done process link event */ 3698 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3699 3700 /* Update link event statistics */ 3701 phba->sli.slistat.link_event++; 3702 3703 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3704 lpfc_read_topology(phba, pmb, mp); 3705 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3706 pmb->vport = phba->pport; 3707 3708 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3709 if (rc == MBX_NOT_FINISHED) 3710 goto out_free_dmabuf; 3711 return; 3712 3713 out_free_dmabuf: 3714 kfree(mp); 3715 out_free_pmb: 3716 mempool_free(pmb, phba->mbox_mem_pool); 3717 } 3718 3719 /** 3720 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3721 * @phba: pointer to lpfc hba data structure. 3722 * @acqe_fc: pointer to the async SLI completion queue entry. 3723 * 3724 * This routine is to handle the SLI4 asynchronous SLI events. 3725 **/ 3726 static void 3727 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3728 { 3729 char port_name; 3730 char message[80]; 3731 uint8_t status; 3732 struct lpfc_acqe_misconfigured_event *misconfigured; 3733 3734 /* special case misconfigured event as it contains data for all ports */ 3735 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3736 LPFC_SLI_INTF_IF_TYPE_2) || 3737 (bf_get(lpfc_trailer_type, acqe_sli) != 3738 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3739 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3740 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3741 "x%08x SLI Event Type:%d\n", 3742 acqe_sli->event_data1, acqe_sli->event_data2, 3743 bf_get(lpfc_trailer_type, acqe_sli)); 3744 return; 3745 } 3746 3747 port_name = phba->Port[0]; 3748 if (port_name == 0x00) 3749 port_name = '?'; /* get port name is empty */ 3750 3751 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3752 &acqe_sli->event_data1; 3753 3754 /* fetch the status for this port */ 3755 switch (phba->sli4_hba.lnk_info.lnk_no) { 3756 case LPFC_LINK_NUMBER_0: 3757 status = bf_get(lpfc_sli_misconfigured_port0, 3758 &misconfigured->theEvent); 3759 break; 3760 case LPFC_LINK_NUMBER_1: 3761 status = bf_get(lpfc_sli_misconfigured_port1, 3762 &misconfigured->theEvent); 3763 break; 3764 case LPFC_LINK_NUMBER_2: 3765 status = bf_get(lpfc_sli_misconfigured_port2, 3766 &misconfigured->theEvent); 3767 break; 3768 case LPFC_LINK_NUMBER_3: 3769 status = bf_get(lpfc_sli_misconfigured_port3, 3770 &misconfigured->theEvent); 3771 break; 3772 default: 3773 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3774 break; 3775 } 3776 3777 switch (status) { 3778 case LPFC_SLI_EVENT_STATUS_VALID: 3779 return; /* no message if the sfp is okay */ 3780 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3781 sprintf(message, "Not installed"); 3782 break; 3783 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3784 sprintf(message, 3785 "Optics of two types installed"); 3786 break; 3787 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3788 sprintf(message, "Incompatible optics"); 3789 break; 3790 default: 3791 /* firmware is reporting a status we don't know about */ 3792 sprintf(message, "Unknown event status x%02x", status); 3793 break; 3794 } 3795 3796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3797 "3176 Misconfigured Physical Port - " 3798 "Port Name %c %s\n", port_name, message); 3799 } 3800 3801 /** 3802 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3803 * @vport: pointer to vport data structure. 3804 * 3805 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3806 * response to a CVL event. 3807 * 3808 * Return the pointer to the ndlp with the vport if successful, otherwise 3809 * return NULL. 3810 **/ 3811 static struct lpfc_nodelist * 3812 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3813 { 3814 struct lpfc_nodelist *ndlp; 3815 struct Scsi_Host *shost; 3816 struct lpfc_hba *phba; 3817 3818 if (!vport) 3819 return NULL; 3820 phba = vport->phba; 3821 if (!phba) 3822 return NULL; 3823 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3824 if (!ndlp) { 3825 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3826 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3827 if (!ndlp) 3828 return 0; 3829 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3830 /* Set the node type */ 3831 ndlp->nlp_type |= NLP_FABRIC; 3832 /* Put ndlp onto node list */ 3833 lpfc_enqueue_node(vport, ndlp); 3834 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3835 /* re-setup ndlp without removing from node list */ 3836 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3837 if (!ndlp) 3838 return 0; 3839 } 3840 if ((phba->pport->port_state < LPFC_FLOGI) && 3841 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3842 return NULL; 3843 /* If virtual link is not yet instantiated ignore CVL */ 3844 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3845 && (vport->port_state != LPFC_VPORT_FAILED)) 3846 return NULL; 3847 shost = lpfc_shost_from_vport(vport); 3848 if (!shost) 3849 return NULL; 3850 lpfc_linkdown_port(vport); 3851 lpfc_cleanup_pending_mbox(vport); 3852 spin_lock_irq(shost->host_lock); 3853 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3854 spin_unlock_irq(shost->host_lock); 3855 3856 return ndlp; 3857 } 3858 3859 /** 3860 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3861 * @vport: pointer to lpfc hba data structure. 3862 * 3863 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3864 * response to a FCF dead event. 3865 **/ 3866 static void 3867 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3868 { 3869 struct lpfc_vport **vports; 3870 int i; 3871 3872 vports = lpfc_create_vport_work_array(phba); 3873 if (vports) 3874 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3875 lpfc_sli4_perform_vport_cvl(vports[i]); 3876 lpfc_destroy_vport_work_array(phba, vports); 3877 } 3878 3879 /** 3880 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 3881 * @phba: pointer to lpfc hba data structure. 3882 * @acqe_link: pointer to the async fcoe completion queue entry. 3883 * 3884 * This routine is to handle the SLI4 asynchronous fcoe event. 3885 **/ 3886 static void 3887 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 3888 struct lpfc_acqe_fip *acqe_fip) 3889 { 3890 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 3891 int rc; 3892 struct lpfc_vport *vport; 3893 struct lpfc_nodelist *ndlp; 3894 struct Scsi_Host *shost; 3895 int active_vlink_present; 3896 struct lpfc_vport **vports; 3897 int i; 3898 3899 phba->fc_eventTag = acqe_fip->event_tag; 3900 phba->fcoe_eventtag = acqe_fip->event_tag; 3901 switch (event_type) { 3902 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 3903 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 3904 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 3905 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 3906 LOG_DISCOVERY, 3907 "2546 New FCF event, evt_tag:x%x, " 3908 "index:x%x\n", 3909 acqe_fip->event_tag, 3910 acqe_fip->index); 3911 else 3912 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 3913 LOG_DISCOVERY, 3914 "2788 FCF param modified event, " 3915 "evt_tag:x%x, index:x%x\n", 3916 acqe_fip->event_tag, 3917 acqe_fip->index); 3918 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3919 /* 3920 * During period of FCF discovery, read the FCF 3921 * table record indexed by the event to update 3922 * FCF roundrobin failover eligible FCF bmask. 3923 */ 3924 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 3925 LOG_DISCOVERY, 3926 "2779 Read FCF (x%x) for updating " 3927 "roundrobin FCF failover bmask\n", 3928 acqe_fip->index); 3929 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 3930 } 3931 3932 /* If the FCF discovery is in progress, do nothing. */ 3933 spin_lock_irq(&phba->hbalock); 3934 if (phba->hba_flag & FCF_TS_INPROG) { 3935 spin_unlock_irq(&phba->hbalock); 3936 break; 3937 } 3938 /* If fast FCF failover rescan event is pending, do nothing */ 3939 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 3940 spin_unlock_irq(&phba->hbalock); 3941 break; 3942 } 3943 3944 /* If the FCF has been in discovered state, do nothing. */ 3945 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 3946 spin_unlock_irq(&phba->hbalock); 3947 break; 3948 } 3949 spin_unlock_irq(&phba->hbalock); 3950 3951 /* Otherwise, scan the entire FCF table and re-discover SAN */ 3952 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 3953 "2770 Start FCF table scan per async FCF " 3954 "event, evt_tag:x%x, index:x%x\n", 3955 acqe_fip->event_tag, acqe_fip->index); 3956 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 3957 LPFC_FCOE_FCF_GET_FIRST); 3958 if (rc) 3959 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3960 "2547 Issue FCF scan read FCF mailbox " 3961 "command failed (x%x)\n", rc); 3962 break; 3963 3964 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 3965 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3966 "2548 FCF Table full count 0x%x tag 0x%x\n", 3967 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 3968 acqe_fip->event_tag); 3969 break; 3970 3971 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 3972 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 3973 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 3974 "2549 FCF (x%x) disconnected from network, " 3975 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 3976 /* 3977 * If we are in the middle of FCF failover process, clear 3978 * the corresponding FCF bit in the roundrobin bitmap. 3979 */ 3980 spin_lock_irq(&phba->hbalock); 3981 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 3982 spin_unlock_irq(&phba->hbalock); 3983 /* Update FLOGI FCF failover eligible FCF bmask */ 3984 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 3985 break; 3986 } 3987 spin_unlock_irq(&phba->hbalock); 3988 3989 /* If the event is not for currently used fcf do nothing */ 3990 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 3991 break; 3992 3993 /* 3994 * Otherwise, request the port to rediscover the entire FCF 3995 * table for a fast recovery from case that the current FCF 3996 * is no longer valid as we are not in the middle of FCF 3997 * failover process already. 3998 */ 3999 spin_lock_irq(&phba->hbalock); 4000 /* Mark the fast failover process in progress */ 4001 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4002 spin_unlock_irq(&phba->hbalock); 4003 4004 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4005 "2771 Start FCF fast failover process due to " 4006 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4007 "\n", acqe_fip->event_tag, acqe_fip->index); 4008 rc = lpfc_sli4_redisc_fcf_table(phba); 4009 if (rc) { 4010 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4011 LOG_DISCOVERY, 4012 "2772 Issue FCF rediscover mabilbox " 4013 "command failed, fail through to FCF " 4014 "dead event\n"); 4015 spin_lock_irq(&phba->hbalock); 4016 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4017 spin_unlock_irq(&phba->hbalock); 4018 /* 4019 * Last resort will fail over by treating this 4020 * as a link down to FCF registration. 4021 */ 4022 lpfc_sli4_fcf_dead_failthrough(phba); 4023 } else { 4024 /* Reset FCF roundrobin bmask for new discovery */ 4025 lpfc_sli4_clear_fcf_rr_bmask(phba); 4026 /* 4027 * Handling fast FCF failover to a DEAD FCF event is 4028 * considered equalivant to receiving CVL to all vports. 4029 */ 4030 lpfc_sli4_perform_all_vport_cvl(phba); 4031 } 4032 break; 4033 case LPFC_FIP_EVENT_TYPE_CVL: 4034 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4035 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4036 "2718 Clear Virtual Link Received for VPI 0x%x" 4037 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4038 4039 vport = lpfc_find_vport_by_vpid(phba, 4040 acqe_fip->index); 4041 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4042 if (!ndlp) 4043 break; 4044 active_vlink_present = 0; 4045 4046 vports = lpfc_create_vport_work_array(phba); 4047 if (vports) { 4048 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4049 i++) { 4050 if ((!(vports[i]->fc_flag & 4051 FC_VPORT_CVL_RCVD)) && 4052 (vports[i]->port_state > LPFC_FDISC)) { 4053 active_vlink_present = 1; 4054 break; 4055 } 4056 } 4057 lpfc_destroy_vport_work_array(phba, vports); 4058 } 4059 4060 if (active_vlink_present) { 4061 /* 4062 * If there are other active VLinks present, 4063 * re-instantiate the Vlink using FDISC. 4064 */ 4065 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 4066 shost = lpfc_shost_from_vport(vport); 4067 spin_lock_irq(shost->host_lock); 4068 ndlp->nlp_flag |= NLP_DELAY_TMO; 4069 spin_unlock_irq(shost->host_lock); 4070 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4071 vport->port_state = LPFC_FDISC; 4072 } else { 4073 /* 4074 * Otherwise, we request port to rediscover 4075 * the entire FCF table for a fast recovery 4076 * from possible case that the current FCF 4077 * is no longer valid if we are not already 4078 * in the FCF failover process. 4079 */ 4080 spin_lock_irq(&phba->hbalock); 4081 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4082 spin_unlock_irq(&phba->hbalock); 4083 break; 4084 } 4085 /* Mark the fast failover process in progress */ 4086 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4087 spin_unlock_irq(&phba->hbalock); 4088 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4089 LOG_DISCOVERY, 4090 "2773 Start FCF failover per CVL, " 4091 "evt_tag:x%x\n", acqe_fip->event_tag); 4092 rc = lpfc_sli4_redisc_fcf_table(phba); 4093 if (rc) { 4094 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4095 LOG_DISCOVERY, 4096 "2774 Issue FCF rediscover " 4097 "mabilbox command failed, " 4098 "through to CVL event\n"); 4099 spin_lock_irq(&phba->hbalock); 4100 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4101 spin_unlock_irq(&phba->hbalock); 4102 /* 4103 * Last resort will be re-try on the 4104 * the current registered FCF entry. 4105 */ 4106 lpfc_retry_pport_discovery(phba); 4107 } else 4108 /* 4109 * Reset FCF roundrobin bmask for new 4110 * discovery. 4111 */ 4112 lpfc_sli4_clear_fcf_rr_bmask(phba); 4113 } 4114 break; 4115 default: 4116 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4117 "0288 Unknown FCoE event type 0x%x event tag " 4118 "0x%x\n", event_type, acqe_fip->event_tag); 4119 break; 4120 } 4121 } 4122 4123 /** 4124 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4125 * @phba: pointer to lpfc hba data structure. 4126 * @acqe_link: pointer to the async dcbx completion queue entry. 4127 * 4128 * This routine is to handle the SLI4 asynchronous dcbx event. 4129 **/ 4130 static void 4131 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4132 struct lpfc_acqe_dcbx *acqe_dcbx) 4133 { 4134 phba->fc_eventTag = acqe_dcbx->event_tag; 4135 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4136 "0290 The SLI4 DCBX asynchronous event is not " 4137 "handled yet\n"); 4138 } 4139 4140 /** 4141 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4142 * @phba: pointer to lpfc hba data structure. 4143 * @acqe_link: pointer to the async grp5 completion queue entry. 4144 * 4145 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4146 * is an asynchronous notified of a logical link speed change. The Port 4147 * reports the logical link speed in units of 10Mbps. 4148 **/ 4149 static void 4150 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4151 struct lpfc_acqe_grp5 *acqe_grp5) 4152 { 4153 uint16_t prev_ll_spd; 4154 4155 phba->fc_eventTag = acqe_grp5->event_tag; 4156 phba->fcoe_eventtag = acqe_grp5->event_tag; 4157 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4158 phba->sli4_hba.link_state.logical_speed = 4159 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)); 4160 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4161 "2789 GRP5 Async Event: Updating logical link speed " 4162 "from %dMbps to %dMbps\n", (prev_ll_spd * 10), 4163 (phba->sli4_hba.link_state.logical_speed*10)); 4164 } 4165 4166 /** 4167 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4168 * @phba: pointer to lpfc hba data structure. 4169 * 4170 * This routine is invoked by the worker thread to process all the pending 4171 * SLI4 asynchronous events. 4172 **/ 4173 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4174 { 4175 struct lpfc_cq_event *cq_event; 4176 4177 /* First, declare the async event has been handled */ 4178 spin_lock_irq(&phba->hbalock); 4179 phba->hba_flag &= ~ASYNC_EVENT; 4180 spin_unlock_irq(&phba->hbalock); 4181 /* Now, handle all the async events */ 4182 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4183 /* Get the first event from the head of the event queue */ 4184 spin_lock_irq(&phba->hbalock); 4185 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4186 cq_event, struct lpfc_cq_event, list); 4187 spin_unlock_irq(&phba->hbalock); 4188 /* Process the asynchronous event */ 4189 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4190 case LPFC_TRAILER_CODE_LINK: 4191 lpfc_sli4_async_link_evt(phba, 4192 &cq_event->cqe.acqe_link); 4193 break; 4194 case LPFC_TRAILER_CODE_FCOE: 4195 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4196 break; 4197 case LPFC_TRAILER_CODE_DCBX: 4198 lpfc_sli4_async_dcbx_evt(phba, 4199 &cq_event->cqe.acqe_dcbx); 4200 break; 4201 case LPFC_TRAILER_CODE_GRP5: 4202 lpfc_sli4_async_grp5_evt(phba, 4203 &cq_event->cqe.acqe_grp5); 4204 break; 4205 case LPFC_TRAILER_CODE_FC: 4206 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4207 break; 4208 case LPFC_TRAILER_CODE_SLI: 4209 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4210 break; 4211 default: 4212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4213 "1804 Invalid asynchrous event code: " 4214 "x%x\n", bf_get(lpfc_trailer_code, 4215 &cq_event->cqe.mcqe_cmpl)); 4216 break; 4217 } 4218 /* Free the completion event processed to the free pool */ 4219 lpfc_sli4_cq_event_release(phba, cq_event); 4220 } 4221 } 4222 4223 /** 4224 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4225 * @phba: pointer to lpfc hba data structure. 4226 * 4227 * This routine is invoked by the worker thread to process FCF table 4228 * rediscovery pending completion event. 4229 **/ 4230 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4231 { 4232 int rc; 4233 4234 spin_lock_irq(&phba->hbalock); 4235 /* Clear FCF rediscovery timeout event */ 4236 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4237 /* Clear driver fast failover FCF record flag */ 4238 phba->fcf.failover_rec.flag = 0; 4239 /* Set state for FCF fast failover */ 4240 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4241 spin_unlock_irq(&phba->hbalock); 4242 4243 /* Scan FCF table from the first entry to re-discover SAN */ 4244 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4245 "2777 Start post-quiescent FCF table scan\n"); 4246 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4247 if (rc) 4248 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4249 "2747 Issue FCF scan read FCF mailbox " 4250 "command failed 0x%x\n", rc); 4251 } 4252 4253 /** 4254 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4255 * @phba: pointer to lpfc hba data structure. 4256 * @dev_grp: The HBA PCI-Device group number. 4257 * 4258 * This routine is invoked to set up the per HBA PCI-Device group function 4259 * API jump table entries. 4260 * 4261 * Return: 0 if success, otherwise -ENODEV 4262 **/ 4263 int 4264 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4265 { 4266 int rc; 4267 4268 /* Set up lpfc PCI-device group */ 4269 phba->pci_dev_grp = dev_grp; 4270 4271 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4272 if (dev_grp == LPFC_PCI_DEV_OC) 4273 phba->sli_rev = LPFC_SLI_REV4; 4274 4275 /* Set up device INIT API function jump table */ 4276 rc = lpfc_init_api_table_setup(phba, dev_grp); 4277 if (rc) 4278 return -ENODEV; 4279 /* Set up SCSI API function jump table */ 4280 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4281 if (rc) 4282 return -ENODEV; 4283 /* Set up SLI API function jump table */ 4284 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4285 if (rc) 4286 return -ENODEV; 4287 /* Set up MBOX API function jump table */ 4288 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4289 if (rc) 4290 return -ENODEV; 4291 4292 return 0; 4293 } 4294 4295 /** 4296 * lpfc_log_intr_mode - Log the active interrupt mode 4297 * @phba: pointer to lpfc hba data structure. 4298 * @intr_mode: active interrupt mode adopted. 4299 * 4300 * This routine it invoked to log the currently used active interrupt mode 4301 * to the device. 4302 **/ 4303 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4304 { 4305 switch (intr_mode) { 4306 case 0: 4307 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4308 "0470 Enable INTx interrupt mode.\n"); 4309 break; 4310 case 1: 4311 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4312 "0481 Enabled MSI interrupt mode.\n"); 4313 break; 4314 case 2: 4315 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4316 "0480 Enabled MSI-X interrupt mode.\n"); 4317 break; 4318 default: 4319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4320 "0482 Illegal interrupt mode.\n"); 4321 break; 4322 } 4323 return; 4324 } 4325 4326 /** 4327 * lpfc_enable_pci_dev - Enable a generic PCI device. 4328 * @phba: pointer to lpfc hba data structure. 4329 * 4330 * This routine is invoked to enable the PCI device that is common to all 4331 * PCI devices. 4332 * 4333 * Return codes 4334 * 0 - successful 4335 * other values - error 4336 **/ 4337 static int 4338 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4339 { 4340 struct pci_dev *pdev; 4341 int bars = 0; 4342 4343 /* Obtain PCI device reference */ 4344 if (!phba->pcidev) 4345 goto out_error; 4346 else 4347 pdev = phba->pcidev; 4348 /* Select PCI BARs */ 4349 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4350 /* Enable PCI device */ 4351 if (pci_enable_device_mem(pdev)) 4352 goto out_error; 4353 /* Request PCI resource for the device */ 4354 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4355 goto out_disable_device; 4356 /* Set up device as PCI master and save state for EEH */ 4357 pci_set_master(pdev); 4358 pci_try_set_mwi(pdev); 4359 pci_save_state(pdev); 4360 4361 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4362 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4363 pdev->needs_freset = 1; 4364 4365 return 0; 4366 4367 out_disable_device: 4368 pci_disable_device(pdev); 4369 out_error: 4370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4371 "1401 Failed to enable pci device, bars:x%x\n", bars); 4372 return -ENODEV; 4373 } 4374 4375 /** 4376 * lpfc_disable_pci_dev - Disable a generic PCI device. 4377 * @phba: pointer to lpfc hba data structure. 4378 * 4379 * This routine is invoked to disable the PCI device that is common to all 4380 * PCI devices. 4381 **/ 4382 static void 4383 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4384 { 4385 struct pci_dev *pdev; 4386 int bars; 4387 4388 /* Obtain PCI device reference */ 4389 if (!phba->pcidev) 4390 return; 4391 else 4392 pdev = phba->pcidev; 4393 /* Select PCI BARs */ 4394 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4395 /* Release PCI resource and disable PCI device */ 4396 pci_release_selected_regions(pdev, bars); 4397 pci_disable_device(pdev); 4398 /* Null out PCI private reference to driver */ 4399 pci_set_drvdata(pdev, NULL); 4400 4401 return; 4402 } 4403 4404 /** 4405 * lpfc_reset_hba - Reset a hba 4406 * @phba: pointer to lpfc hba data structure. 4407 * 4408 * This routine is invoked to reset a hba device. It brings the HBA 4409 * offline, performs a board restart, and then brings the board back 4410 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4411 * on outstanding mailbox commands. 4412 **/ 4413 void 4414 lpfc_reset_hba(struct lpfc_hba *phba) 4415 { 4416 /* If resets are disabled then set error state and return. */ 4417 if (!phba->cfg_enable_hba_reset) { 4418 phba->link_state = LPFC_HBA_ERROR; 4419 return; 4420 } 4421 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4422 lpfc_offline(phba); 4423 lpfc_sli_brdrestart(phba); 4424 lpfc_online(phba); 4425 lpfc_unblock_mgmt_io(phba); 4426 } 4427 4428 /** 4429 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4430 * @phba: pointer to lpfc hba data structure. 4431 * 4432 * This function enables the PCI SR-IOV virtual functions to a physical 4433 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4434 * enable the number of virtual functions to the physical function. As 4435 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4436 * API call does not considered as an error condition for most of the device. 4437 **/ 4438 uint16_t 4439 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4440 { 4441 struct pci_dev *pdev = phba->pcidev; 4442 uint16_t nr_virtfn; 4443 int pos; 4444 4445 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4446 if (pos == 0) 4447 return 0; 4448 4449 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4450 return nr_virtfn; 4451 } 4452 4453 /** 4454 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4455 * @phba: pointer to lpfc hba data structure. 4456 * @nr_vfn: number of virtual functions to be enabled. 4457 * 4458 * This function enables the PCI SR-IOV virtual functions to a physical 4459 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4460 * enable the number of virtual functions to the physical function. As 4461 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4462 * API call does not considered as an error condition for most of the device. 4463 **/ 4464 int 4465 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4466 { 4467 struct pci_dev *pdev = phba->pcidev; 4468 uint16_t max_nr_vfn; 4469 int rc; 4470 4471 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4472 if (nr_vfn > max_nr_vfn) { 4473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4474 "3057 Requested vfs (%d) greater than " 4475 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4476 return -EINVAL; 4477 } 4478 4479 rc = pci_enable_sriov(pdev, nr_vfn); 4480 if (rc) { 4481 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4482 "2806 Failed to enable sriov on this device " 4483 "with vfn number nr_vf:%d, rc:%d\n", 4484 nr_vfn, rc); 4485 } else 4486 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4487 "2807 Successful enable sriov on this device " 4488 "with vfn number nr_vf:%d\n", nr_vfn); 4489 return rc; 4490 } 4491 4492 /** 4493 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4494 * @phba: pointer to lpfc hba data structure. 4495 * 4496 * This routine is invoked to set up the driver internal resources specific to 4497 * support the SLI-3 HBA device it attached to. 4498 * 4499 * Return codes 4500 * 0 - successful 4501 * other values - error 4502 **/ 4503 static int 4504 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4505 { 4506 struct lpfc_sli *psli; 4507 int rc; 4508 4509 /* 4510 * Initialize timers used by driver 4511 */ 4512 4513 /* Heartbeat timer */ 4514 init_timer(&phba->hb_tmofunc); 4515 phba->hb_tmofunc.function = lpfc_hb_timeout; 4516 phba->hb_tmofunc.data = (unsigned long)phba; 4517 4518 psli = &phba->sli; 4519 /* MBOX heartbeat timer */ 4520 init_timer(&psli->mbox_tmo); 4521 psli->mbox_tmo.function = lpfc_mbox_timeout; 4522 psli->mbox_tmo.data = (unsigned long) phba; 4523 /* FCP polling mode timer */ 4524 init_timer(&phba->fcp_poll_timer); 4525 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4526 phba->fcp_poll_timer.data = (unsigned long) phba; 4527 /* Fabric block timer */ 4528 init_timer(&phba->fabric_block_timer); 4529 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4530 phba->fabric_block_timer.data = (unsigned long) phba; 4531 /* EA polling mode timer */ 4532 init_timer(&phba->eratt_poll); 4533 phba->eratt_poll.function = lpfc_poll_eratt; 4534 phba->eratt_poll.data = (unsigned long) phba; 4535 4536 /* Host attention work mask setup */ 4537 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4538 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4539 4540 /* Get all the module params for configuring this host */ 4541 lpfc_get_cfgparam(phba); 4542 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4543 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4544 /* check for menlo minimum sg count */ 4545 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4546 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4547 } 4548 4549 /* 4550 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4551 * used to create the sg_dma_buf_pool must be dynamically calculated. 4552 * 2 segments are added since the IOCB needs a command and response bde. 4553 */ 4554 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4555 sizeof(struct fcp_rsp) + 4556 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4557 4558 if (phba->cfg_enable_bg) { 4559 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4560 phba->cfg_sg_dma_buf_size += 4561 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4562 } 4563 4564 /* Also reinitialize the host templates with new values. */ 4565 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4566 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4567 4568 phba->max_vpi = LPFC_MAX_VPI; 4569 /* This will be set to correct value after config_port mbox */ 4570 phba->max_vports = 0; 4571 4572 /* 4573 * Initialize the SLI Layer to run with lpfc HBAs. 4574 */ 4575 lpfc_sli_setup(phba); 4576 lpfc_sli_queue_setup(phba); 4577 4578 /* Allocate device driver memory */ 4579 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4580 return -ENOMEM; 4581 4582 /* 4583 * Enable sr-iov virtual functions if supported and configured 4584 * through the module parameter. 4585 */ 4586 if (phba->cfg_sriov_nr_virtfn > 0) { 4587 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4588 phba->cfg_sriov_nr_virtfn); 4589 if (rc) { 4590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4591 "2808 Requested number of SR-IOV " 4592 "virtual functions (%d) is not " 4593 "supported\n", 4594 phba->cfg_sriov_nr_virtfn); 4595 phba->cfg_sriov_nr_virtfn = 0; 4596 } 4597 } 4598 4599 return 0; 4600 } 4601 4602 /** 4603 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4604 * @phba: pointer to lpfc hba data structure. 4605 * 4606 * This routine is invoked to unset the driver internal resources set up 4607 * specific for supporting the SLI-3 HBA device it attached to. 4608 **/ 4609 static void 4610 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4611 { 4612 /* Free device driver memory allocated */ 4613 lpfc_mem_free_all(phba); 4614 4615 return; 4616 } 4617 4618 /** 4619 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4620 * @phba: pointer to lpfc hba data structure. 4621 * 4622 * This routine is invoked to set up the driver internal resources specific to 4623 * support the SLI-4 HBA device it attached to. 4624 * 4625 * Return codes 4626 * 0 - successful 4627 * other values - error 4628 **/ 4629 static int 4630 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4631 { 4632 struct lpfc_sli *psli; 4633 LPFC_MBOXQ_t *mboxq; 4634 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4635 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4636 struct lpfc_mqe *mqe; 4637 int longs, sli_family; 4638 int sges_per_segment; 4639 4640 /* Before proceed, wait for POST done and device ready */ 4641 rc = lpfc_sli4_post_status_check(phba); 4642 if (rc) 4643 return -ENODEV; 4644 4645 /* 4646 * Initialize timers used by driver 4647 */ 4648 4649 /* Heartbeat timer */ 4650 init_timer(&phba->hb_tmofunc); 4651 phba->hb_tmofunc.function = lpfc_hb_timeout; 4652 phba->hb_tmofunc.data = (unsigned long)phba; 4653 init_timer(&phba->rrq_tmr); 4654 phba->rrq_tmr.function = lpfc_rrq_timeout; 4655 phba->rrq_tmr.data = (unsigned long)phba; 4656 4657 psli = &phba->sli; 4658 /* MBOX heartbeat timer */ 4659 init_timer(&psli->mbox_tmo); 4660 psli->mbox_tmo.function = lpfc_mbox_timeout; 4661 psli->mbox_tmo.data = (unsigned long) phba; 4662 /* Fabric block timer */ 4663 init_timer(&phba->fabric_block_timer); 4664 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4665 phba->fabric_block_timer.data = (unsigned long) phba; 4666 /* EA polling mode timer */ 4667 init_timer(&phba->eratt_poll); 4668 phba->eratt_poll.function = lpfc_poll_eratt; 4669 phba->eratt_poll.data = (unsigned long) phba; 4670 /* FCF rediscover timer */ 4671 init_timer(&phba->fcf.redisc_wait); 4672 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4673 phba->fcf.redisc_wait.data = (unsigned long)phba; 4674 4675 /* 4676 * Control structure for handling external multi-buffer mailbox 4677 * command pass-through. 4678 */ 4679 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4680 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4681 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4682 4683 /* 4684 * We need to do a READ_CONFIG mailbox command here before 4685 * calling lpfc_get_cfgparam. For VFs this will report the 4686 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4687 * All of the resources allocated 4688 * for this Port are tied to these values. 4689 */ 4690 /* Get all the module params for configuring this host */ 4691 lpfc_get_cfgparam(phba); 4692 phba->max_vpi = LPFC_MAX_VPI; 4693 /* This will be set to correct value after the read_config mbox */ 4694 phba->max_vports = 0; 4695 4696 /* Program the default value of vlan_id and fc_map */ 4697 phba->valid_vlan = 0; 4698 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4699 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4700 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4701 4702 /* With BlockGuard we can have multiple SGEs per Data Segemnt */ 4703 sges_per_segment = 1; 4704 if (phba->cfg_enable_bg) 4705 sges_per_segment = 2; 4706 4707 /* 4708 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4709 * used to create the sg_dma_buf_pool must be dynamically calculated. 4710 * 2 segments are added since the IOCB needs a command and response bde. 4711 * To insure that the scsi sgl does not cross a 4k page boundary only 4712 * sgl sizes of must be a power of 2. 4713 */ 4714 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4715 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * 4716 sizeof(struct sli4_sge))); 4717 4718 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4719 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4720 switch (sli_family) { 4721 case LPFC_SLI_INTF_FAMILY_BE2: 4722 case LPFC_SLI_INTF_FAMILY_BE3: 4723 /* There is a single hint for BE - 2 pages per BPL. */ 4724 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4725 LPFC_SLI_INTF_SLI_HINT1_1) 4726 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4727 break; 4728 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4729 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4730 default: 4731 break; 4732 } 4733 4734 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4735 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4736 dma_buf_size = dma_buf_size << 1) 4737 ; 4738 if (dma_buf_size == max_buf_size) 4739 phba->cfg_sg_seg_cnt = (dma_buf_size - 4740 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4741 (2 * sizeof(struct sli4_sge))) / 4742 sizeof(struct sli4_sge); 4743 phba->cfg_sg_dma_buf_size = dma_buf_size; 4744 4745 /* Initialize buffer queue management fields */ 4746 hbq_count = lpfc_sli_hbq_count(); 4747 for (i = 0; i < hbq_count; ++i) 4748 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4749 INIT_LIST_HEAD(&phba->rb_pend_list); 4750 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4751 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4752 4753 /* 4754 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4755 */ 4756 /* Initialize the Abort scsi buffer list used by driver */ 4757 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4758 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4759 /* This abort list used by worker thread */ 4760 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4761 4762 /* 4763 * Initialize driver internal slow-path work queues 4764 */ 4765 4766 /* Driver internel slow-path CQ Event pool */ 4767 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4768 /* Response IOCB work queue list */ 4769 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4770 /* Asynchronous event CQ Event work queue list */ 4771 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4772 /* Fast-path XRI aborted CQ Event work queue list */ 4773 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4774 /* Slow-path XRI aborted CQ Event work queue list */ 4775 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4776 /* Receive queue CQ Event work queue list */ 4777 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4778 4779 /* Initialize extent block lists. */ 4780 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4781 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4782 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4783 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4784 4785 /* Initialize the driver internal SLI layer lists. */ 4786 lpfc_sli_setup(phba); 4787 lpfc_sli_queue_setup(phba); 4788 4789 /* Allocate device driver memory */ 4790 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4791 if (rc) 4792 return -ENOMEM; 4793 4794 /* IF Type 2 ports get initialized now. */ 4795 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4796 LPFC_SLI_INTF_IF_TYPE_2) { 4797 rc = lpfc_pci_function_reset(phba); 4798 if (unlikely(rc)) 4799 return -ENODEV; 4800 } 4801 4802 /* Create the bootstrap mailbox command */ 4803 rc = lpfc_create_bootstrap_mbox(phba); 4804 if (unlikely(rc)) 4805 goto out_free_mem; 4806 4807 /* Set up the host's endian order with the device. */ 4808 rc = lpfc_setup_endian_order(phba); 4809 if (unlikely(rc)) 4810 goto out_free_bsmbx; 4811 4812 /* Set up the hba's configuration parameters. */ 4813 rc = lpfc_sli4_read_config(phba); 4814 if (unlikely(rc)) 4815 goto out_free_bsmbx; 4816 4817 /* IF Type 0 ports get initialized now. */ 4818 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4819 LPFC_SLI_INTF_IF_TYPE_0) { 4820 rc = lpfc_pci_function_reset(phba); 4821 if (unlikely(rc)) 4822 goto out_free_bsmbx; 4823 } 4824 4825 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4826 GFP_KERNEL); 4827 if (!mboxq) { 4828 rc = -ENOMEM; 4829 goto out_free_bsmbx; 4830 } 4831 4832 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4833 lpfc_supported_pages(mboxq); 4834 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4835 if (!rc) { 4836 mqe = &mboxq->u.mqe; 4837 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4838 LPFC_MAX_SUPPORTED_PAGES); 4839 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4840 switch (pn_page[i]) { 4841 case LPFC_SLI4_PARAMETERS: 4842 phba->sli4_hba.pc_sli4_params.supported = 1; 4843 break; 4844 default: 4845 break; 4846 } 4847 } 4848 /* Read the port's SLI4 Parameters capabilities if supported. */ 4849 if (phba->sli4_hba.pc_sli4_params.supported) 4850 rc = lpfc_pc_sli4_params_get(phba, mboxq); 4851 if (rc) { 4852 mempool_free(mboxq, phba->mbox_mem_pool); 4853 rc = -EIO; 4854 goto out_free_bsmbx; 4855 } 4856 } 4857 /* 4858 * Get sli4 parameters that override parameters from Port capabilities. 4859 * If this call fails, it isn't critical unless the SLI4 parameters come 4860 * back in conflict. 4861 */ 4862 rc = lpfc_get_sli4_parameters(phba, mboxq); 4863 if (rc) { 4864 if (phba->sli4_hba.extents_in_use && 4865 phba->sli4_hba.rpi_hdrs_in_use) { 4866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4867 "2999 Unsupported SLI4 Parameters " 4868 "Extents and RPI headers enabled.\n"); 4869 goto out_free_bsmbx; 4870 } 4871 } 4872 mempool_free(mboxq, phba->mbox_mem_pool); 4873 /* Verify all the SLI4 queues */ 4874 rc = lpfc_sli4_queue_verify(phba); 4875 if (rc) 4876 goto out_free_bsmbx; 4877 4878 /* Create driver internal CQE event pool */ 4879 rc = lpfc_sli4_cq_event_pool_create(phba); 4880 if (rc) 4881 goto out_free_bsmbx; 4882 4883 /* Initialize sgl lists per host */ 4884 lpfc_init_sgl_list(phba); 4885 4886 /* Allocate and initialize active sgl array */ 4887 rc = lpfc_init_active_sgl_array(phba); 4888 if (rc) { 4889 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4890 "1430 Failed to initialize sgl list.\n"); 4891 goto out_destroy_cq_event_pool; 4892 } 4893 rc = lpfc_sli4_init_rpi_hdrs(phba); 4894 if (rc) { 4895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4896 "1432 Failed to initialize rpi headers.\n"); 4897 goto out_free_active_sgl; 4898 } 4899 4900 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 4901 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 4902 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 4903 GFP_KERNEL); 4904 if (!phba->fcf.fcf_rr_bmask) { 4905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4906 "2759 Failed allocate memory for FCF round " 4907 "robin failover bmask\n"); 4908 rc = -ENOMEM; 4909 goto out_remove_rpi_hdrs; 4910 } 4911 4912 /* 4913 * The cfg_fcp_eq_count can be zero whenever there is exactly one 4914 * interrupt vector. This is not an error 4915 */ 4916 if (phba->cfg_fcp_eq_count) { 4917 phba->sli4_hba.fcp_eq_hdl = 4918 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 4919 phba->cfg_fcp_eq_count), GFP_KERNEL); 4920 if (!phba->sli4_hba.fcp_eq_hdl) { 4921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4922 "2572 Failed allocate memory for " 4923 "fast-path per-EQ handle array\n"); 4924 rc = -ENOMEM; 4925 goto out_free_fcf_rr_bmask; 4926 } 4927 } 4928 4929 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 4930 phba->sli4_hba.cfg_eqn), GFP_KERNEL); 4931 if (!phba->sli4_hba.msix_entries) { 4932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4933 "2573 Failed allocate memory for msi-x " 4934 "interrupt vector entries\n"); 4935 rc = -ENOMEM; 4936 goto out_free_fcp_eq_hdl; 4937 } 4938 4939 /* 4940 * Enable sr-iov virtual functions if supported and configured 4941 * through the module parameter. 4942 */ 4943 if (phba->cfg_sriov_nr_virtfn > 0) { 4944 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4945 phba->cfg_sriov_nr_virtfn); 4946 if (rc) { 4947 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4948 "3020 Requested number of SR-IOV " 4949 "virtual functions (%d) is not " 4950 "supported\n", 4951 phba->cfg_sriov_nr_virtfn); 4952 phba->cfg_sriov_nr_virtfn = 0; 4953 } 4954 } 4955 4956 return 0; 4957 4958 out_free_fcp_eq_hdl: 4959 kfree(phba->sli4_hba.fcp_eq_hdl); 4960 out_free_fcf_rr_bmask: 4961 kfree(phba->fcf.fcf_rr_bmask); 4962 out_remove_rpi_hdrs: 4963 lpfc_sli4_remove_rpi_hdrs(phba); 4964 out_free_active_sgl: 4965 lpfc_free_active_sgl(phba); 4966 out_destroy_cq_event_pool: 4967 lpfc_sli4_cq_event_pool_destroy(phba); 4968 out_free_bsmbx: 4969 lpfc_destroy_bootstrap_mbox(phba); 4970 out_free_mem: 4971 lpfc_mem_free(phba); 4972 return rc; 4973 } 4974 4975 /** 4976 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 4977 * @phba: pointer to lpfc hba data structure. 4978 * 4979 * This routine is invoked to unset the driver internal resources set up 4980 * specific for supporting the SLI-4 HBA device it attached to. 4981 **/ 4982 static void 4983 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 4984 { 4985 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 4986 4987 /* Free memory allocated for msi-x interrupt vector entries */ 4988 kfree(phba->sli4_hba.msix_entries); 4989 4990 /* Free memory allocated for fast-path work queue handles */ 4991 kfree(phba->sli4_hba.fcp_eq_hdl); 4992 4993 /* Free the allocated rpi headers. */ 4994 lpfc_sli4_remove_rpi_hdrs(phba); 4995 lpfc_sli4_remove_rpis(phba); 4996 4997 /* Free eligible FCF index bmask */ 4998 kfree(phba->fcf.fcf_rr_bmask); 4999 5000 /* Free the ELS sgl list */ 5001 lpfc_free_active_sgl(phba); 5002 lpfc_free_els_sgl_list(phba); 5003 5004 /* Free the completion queue EQ event pool */ 5005 lpfc_sli4_cq_event_release_all(phba); 5006 lpfc_sli4_cq_event_pool_destroy(phba); 5007 5008 /* Release resource identifiers. */ 5009 lpfc_sli4_dealloc_resource_identifiers(phba); 5010 5011 /* Free the bsmbx region. */ 5012 lpfc_destroy_bootstrap_mbox(phba); 5013 5014 /* Free the SLI Layer memory with SLI4 HBAs */ 5015 lpfc_mem_free_all(phba); 5016 5017 /* Free the current connect table */ 5018 list_for_each_entry_safe(conn_entry, next_conn_entry, 5019 &phba->fcf_conn_rec_list, list) { 5020 list_del_init(&conn_entry->list); 5021 kfree(conn_entry); 5022 } 5023 5024 return; 5025 } 5026 5027 /** 5028 * lpfc_init_api_table_setup - Set up init api function jump table 5029 * @phba: The hba struct for which this call is being executed. 5030 * @dev_grp: The HBA PCI-Device group number. 5031 * 5032 * This routine sets up the device INIT interface API function jump table 5033 * in @phba struct. 5034 * 5035 * Returns: 0 - success, -ENODEV - failure. 5036 **/ 5037 int 5038 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5039 { 5040 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5041 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5042 phba->lpfc_selective_reset = lpfc_selective_reset; 5043 switch (dev_grp) { 5044 case LPFC_PCI_DEV_LP: 5045 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5046 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5047 phba->lpfc_stop_port = lpfc_stop_port_s3; 5048 break; 5049 case LPFC_PCI_DEV_OC: 5050 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5051 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5052 phba->lpfc_stop_port = lpfc_stop_port_s4; 5053 break; 5054 default: 5055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5056 "1431 Invalid HBA PCI-device group: 0x%x\n", 5057 dev_grp); 5058 return -ENODEV; 5059 break; 5060 } 5061 return 0; 5062 } 5063 5064 /** 5065 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5066 * @phba: pointer to lpfc hba data structure. 5067 * 5068 * This routine is invoked to set up the driver internal resources before the 5069 * device specific resource setup to support the HBA device it attached to. 5070 * 5071 * Return codes 5072 * 0 - successful 5073 * other values - error 5074 **/ 5075 static int 5076 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5077 { 5078 /* 5079 * Driver resources common to all SLI revisions 5080 */ 5081 atomic_set(&phba->fast_event_count, 0); 5082 spin_lock_init(&phba->hbalock); 5083 5084 /* Initialize ndlp management spinlock */ 5085 spin_lock_init(&phba->ndlp_lock); 5086 5087 INIT_LIST_HEAD(&phba->port_list); 5088 INIT_LIST_HEAD(&phba->work_list); 5089 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5090 5091 /* Initialize the wait queue head for the kernel thread */ 5092 init_waitqueue_head(&phba->work_waitq); 5093 5094 /* Initialize the scsi buffer list used by driver for scsi IO */ 5095 spin_lock_init(&phba->scsi_buf_list_lock); 5096 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 5097 5098 /* Initialize the fabric iocb list */ 5099 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5100 5101 /* Initialize list to save ELS buffers */ 5102 INIT_LIST_HEAD(&phba->elsbuf); 5103 5104 /* Initialize FCF connection rec list */ 5105 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5106 5107 return 0; 5108 } 5109 5110 /** 5111 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5112 * @phba: pointer to lpfc hba data structure. 5113 * 5114 * This routine is invoked to set up the driver internal resources after the 5115 * device specific resource setup to support the HBA device it attached to. 5116 * 5117 * Return codes 5118 * 0 - successful 5119 * other values - error 5120 **/ 5121 static int 5122 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5123 { 5124 int error; 5125 5126 /* Startup the kernel thread for this host adapter. */ 5127 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5128 "lpfc_worker_%d", phba->brd_no); 5129 if (IS_ERR(phba->worker_thread)) { 5130 error = PTR_ERR(phba->worker_thread); 5131 return error; 5132 } 5133 5134 return 0; 5135 } 5136 5137 /** 5138 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5139 * @phba: pointer to lpfc hba data structure. 5140 * 5141 * This routine is invoked to unset the driver internal resources set up after 5142 * the device specific resource setup for supporting the HBA device it 5143 * attached to. 5144 **/ 5145 static void 5146 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5147 { 5148 /* Stop kernel worker thread */ 5149 kthread_stop(phba->worker_thread); 5150 } 5151 5152 /** 5153 * lpfc_free_iocb_list - Free iocb list. 5154 * @phba: pointer to lpfc hba data structure. 5155 * 5156 * This routine is invoked to free the driver's IOCB list and memory. 5157 **/ 5158 static void 5159 lpfc_free_iocb_list(struct lpfc_hba *phba) 5160 { 5161 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5162 5163 spin_lock_irq(&phba->hbalock); 5164 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5165 &phba->lpfc_iocb_list, list) { 5166 list_del(&iocbq_entry->list); 5167 kfree(iocbq_entry); 5168 phba->total_iocbq_bufs--; 5169 } 5170 spin_unlock_irq(&phba->hbalock); 5171 5172 return; 5173 } 5174 5175 /** 5176 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5177 * @phba: pointer to lpfc hba data structure. 5178 * 5179 * This routine is invoked to allocate and initizlize the driver's IOCB 5180 * list and set up the IOCB tag array accordingly. 5181 * 5182 * Return codes 5183 * 0 - successful 5184 * other values - error 5185 **/ 5186 static int 5187 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5188 { 5189 struct lpfc_iocbq *iocbq_entry = NULL; 5190 uint16_t iotag; 5191 int i; 5192 5193 /* Initialize and populate the iocb list per host. */ 5194 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5195 for (i = 0; i < iocb_count; i++) { 5196 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5197 if (iocbq_entry == NULL) { 5198 printk(KERN_ERR "%s: only allocated %d iocbs of " 5199 "expected %d count. Unloading driver.\n", 5200 __func__, i, LPFC_IOCB_LIST_CNT); 5201 goto out_free_iocbq; 5202 } 5203 5204 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5205 if (iotag == 0) { 5206 kfree(iocbq_entry); 5207 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5208 "Unloading driver.\n", __func__); 5209 goto out_free_iocbq; 5210 } 5211 iocbq_entry->sli4_lxritag = NO_XRI; 5212 iocbq_entry->sli4_xritag = NO_XRI; 5213 5214 spin_lock_irq(&phba->hbalock); 5215 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5216 phba->total_iocbq_bufs++; 5217 spin_unlock_irq(&phba->hbalock); 5218 } 5219 5220 return 0; 5221 5222 out_free_iocbq: 5223 lpfc_free_iocb_list(phba); 5224 5225 return -ENOMEM; 5226 } 5227 5228 /** 5229 * lpfc_free_sgl_list - Free a given sgl list. 5230 * @phba: pointer to lpfc hba data structure. 5231 * @sglq_list: pointer to the head of sgl list. 5232 * 5233 * This routine is invoked to free a give sgl list and memory. 5234 **/ 5235 void 5236 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5237 { 5238 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5239 5240 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5241 list_del(&sglq_entry->list); 5242 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5243 kfree(sglq_entry); 5244 } 5245 } 5246 5247 /** 5248 * lpfc_free_els_sgl_list - Free els sgl list. 5249 * @phba: pointer to lpfc hba data structure. 5250 * 5251 * This routine is invoked to free the driver's els sgl list and memory. 5252 **/ 5253 static void 5254 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5255 { 5256 LIST_HEAD(sglq_list); 5257 5258 /* Retrieve all els sgls from driver list */ 5259 spin_lock_irq(&phba->hbalock); 5260 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5261 spin_unlock_irq(&phba->hbalock); 5262 5263 /* Now free the sgl list */ 5264 lpfc_free_sgl_list(phba, &sglq_list); 5265 } 5266 5267 /** 5268 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5269 * @phba: pointer to lpfc hba data structure. 5270 * 5271 * This routine is invoked to allocate the driver's active sgl memory. 5272 * This array will hold the sglq_entry's for active IOs. 5273 **/ 5274 static int 5275 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5276 { 5277 int size; 5278 size = sizeof(struct lpfc_sglq *); 5279 size *= phba->sli4_hba.max_cfg_param.max_xri; 5280 5281 phba->sli4_hba.lpfc_sglq_active_list = 5282 kzalloc(size, GFP_KERNEL); 5283 if (!phba->sli4_hba.lpfc_sglq_active_list) 5284 return -ENOMEM; 5285 return 0; 5286 } 5287 5288 /** 5289 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5290 * @phba: pointer to lpfc hba data structure. 5291 * 5292 * This routine is invoked to walk through the array of active sglq entries 5293 * and free all of the resources. 5294 * This is just a place holder for now. 5295 **/ 5296 static void 5297 lpfc_free_active_sgl(struct lpfc_hba *phba) 5298 { 5299 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5300 } 5301 5302 /** 5303 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5304 * @phba: pointer to lpfc hba data structure. 5305 * 5306 * This routine is invoked to allocate and initizlize the driver's sgl 5307 * list and set up the sgl xritag tag array accordingly. 5308 * 5309 **/ 5310 static void 5311 lpfc_init_sgl_list(struct lpfc_hba *phba) 5312 { 5313 /* Initialize and populate the sglq list per host/VF. */ 5314 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5315 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5316 5317 /* els xri-sgl book keeping */ 5318 phba->sli4_hba.els_xri_cnt = 0; 5319 5320 /* scsi xri-buffer book keeping */ 5321 phba->sli4_hba.scsi_xri_cnt = 0; 5322 } 5323 5324 /** 5325 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5326 * @phba: pointer to lpfc hba data structure. 5327 * 5328 * This routine is invoked to post rpi header templates to the 5329 * port for those SLI4 ports that do not support extents. This routine 5330 * posts a PAGE_SIZE memory region to the port to hold up to 5331 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5332 * and should be called only when interrupts are disabled. 5333 * 5334 * Return codes 5335 * 0 - successful 5336 * -ERROR - otherwise. 5337 **/ 5338 int 5339 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5340 { 5341 int rc = 0; 5342 struct lpfc_rpi_hdr *rpi_hdr; 5343 5344 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5345 if (!phba->sli4_hba.rpi_hdrs_in_use) 5346 return rc; 5347 if (phba->sli4_hba.extents_in_use) 5348 return -EIO; 5349 5350 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5351 if (!rpi_hdr) { 5352 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5353 "0391 Error during rpi post operation\n"); 5354 lpfc_sli4_remove_rpis(phba); 5355 rc = -ENODEV; 5356 } 5357 5358 return rc; 5359 } 5360 5361 /** 5362 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5363 * @phba: pointer to lpfc hba data structure. 5364 * 5365 * This routine is invoked to allocate a single 4KB memory region to 5366 * support rpis and stores them in the phba. This single region 5367 * provides support for up to 64 rpis. The region is used globally 5368 * by the device. 5369 * 5370 * Returns: 5371 * A valid rpi hdr on success. 5372 * A NULL pointer on any failure. 5373 **/ 5374 struct lpfc_rpi_hdr * 5375 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5376 { 5377 uint16_t rpi_limit, curr_rpi_range; 5378 struct lpfc_dmabuf *dmabuf; 5379 struct lpfc_rpi_hdr *rpi_hdr; 5380 uint32_t rpi_count; 5381 5382 /* 5383 * If the SLI4 port supports extents, posting the rpi header isn't 5384 * required. Set the expected maximum count and let the actual value 5385 * get set when extents are fully allocated. 5386 */ 5387 if (!phba->sli4_hba.rpi_hdrs_in_use) 5388 return NULL; 5389 if (phba->sli4_hba.extents_in_use) 5390 return NULL; 5391 5392 /* The limit on the logical index is just the max_rpi count. */ 5393 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5394 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5395 5396 spin_lock_irq(&phba->hbalock); 5397 /* 5398 * Establish the starting RPI in this header block. The starting 5399 * rpi is normalized to a zero base because the physical rpi is 5400 * port based. 5401 */ 5402 curr_rpi_range = phba->sli4_hba.next_rpi; 5403 spin_unlock_irq(&phba->hbalock); 5404 5405 /* 5406 * The port has a limited number of rpis. The increment here 5407 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5408 * and to allow the full max_rpi range per port. 5409 */ 5410 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5411 rpi_count = rpi_limit - curr_rpi_range; 5412 else 5413 rpi_count = LPFC_RPI_HDR_COUNT; 5414 5415 if (!rpi_count) 5416 return NULL; 5417 /* 5418 * First allocate the protocol header region for the port. The 5419 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5420 */ 5421 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5422 if (!dmabuf) 5423 return NULL; 5424 5425 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5426 LPFC_HDR_TEMPLATE_SIZE, 5427 &dmabuf->phys, 5428 GFP_KERNEL); 5429 if (!dmabuf->virt) { 5430 rpi_hdr = NULL; 5431 goto err_free_dmabuf; 5432 } 5433 5434 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5435 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5436 rpi_hdr = NULL; 5437 goto err_free_coherent; 5438 } 5439 5440 /* Save the rpi header data for cleanup later. */ 5441 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5442 if (!rpi_hdr) 5443 goto err_free_coherent; 5444 5445 rpi_hdr->dmabuf = dmabuf; 5446 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5447 rpi_hdr->page_count = 1; 5448 spin_lock_irq(&phba->hbalock); 5449 5450 /* The rpi_hdr stores the logical index only. */ 5451 rpi_hdr->start_rpi = curr_rpi_range; 5452 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5453 5454 /* 5455 * The next_rpi stores the next logical module-64 rpi value used 5456 * to post physical rpis in subsequent rpi postings. 5457 */ 5458 phba->sli4_hba.next_rpi += rpi_count; 5459 spin_unlock_irq(&phba->hbalock); 5460 return rpi_hdr; 5461 5462 err_free_coherent: 5463 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5464 dmabuf->virt, dmabuf->phys); 5465 err_free_dmabuf: 5466 kfree(dmabuf); 5467 return NULL; 5468 } 5469 5470 /** 5471 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5472 * @phba: pointer to lpfc hba data structure. 5473 * 5474 * This routine is invoked to remove all memory resources allocated 5475 * to support rpis for SLI4 ports not supporting extents. This routine 5476 * presumes the caller has released all rpis consumed by fabric or port 5477 * logins and is prepared to have the header pages removed. 5478 **/ 5479 void 5480 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5481 { 5482 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5483 5484 if (!phba->sli4_hba.rpi_hdrs_in_use) 5485 goto exit; 5486 5487 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5488 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5489 list_del(&rpi_hdr->list); 5490 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5491 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5492 kfree(rpi_hdr->dmabuf); 5493 kfree(rpi_hdr); 5494 } 5495 exit: 5496 /* There are no rpis available to the port now. */ 5497 phba->sli4_hba.next_rpi = 0; 5498 } 5499 5500 /** 5501 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5502 * @pdev: pointer to pci device data structure. 5503 * 5504 * This routine is invoked to allocate the driver hba data structure for an 5505 * HBA device. If the allocation is successful, the phba reference to the 5506 * PCI device data structure is set. 5507 * 5508 * Return codes 5509 * pointer to @phba - successful 5510 * NULL - error 5511 **/ 5512 static struct lpfc_hba * 5513 lpfc_hba_alloc(struct pci_dev *pdev) 5514 { 5515 struct lpfc_hba *phba; 5516 5517 /* Allocate memory for HBA structure */ 5518 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5519 if (!phba) { 5520 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5521 return NULL; 5522 } 5523 5524 /* Set reference to PCI device in HBA structure */ 5525 phba->pcidev = pdev; 5526 5527 /* Assign an unused board number */ 5528 phba->brd_no = lpfc_get_instance(); 5529 if (phba->brd_no < 0) { 5530 kfree(phba); 5531 return NULL; 5532 } 5533 5534 spin_lock_init(&phba->ct_ev_lock); 5535 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5536 5537 return phba; 5538 } 5539 5540 /** 5541 * lpfc_hba_free - Free driver hba data structure with a device. 5542 * @phba: pointer to lpfc hba data structure. 5543 * 5544 * This routine is invoked to free the driver hba data structure with an 5545 * HBA device. 5546 **/ 5547 static void 5548 lpfc_hba_free(struct lpfc_hba *phba) 5549 { 5550 /* Release the driver assigned board number */ 5551 idr_remove(&lpfc_hba_index, phba->brd_no); 5552 5553 kfree(phba); 5554 return; 5555 } 5556 5557 /** 5558 * lpfc_create_shost - Create hba physical port with associated scsi host. 5559 * @phba: pointer to lpfc hba data structure. 5560 * 5561 * This routine is invoked to create HBA physical port and associate a SCSI 5562 * host with it. 5563 * 5564 * Return codes 5565 * 0 - successful 5566 * other values - error 5567 **/ 5568 static int 5569 lpfc_create_shost(struct lpfc_hba *phba) 5570 { 5571 struct lpfc_vport *vport; 5572 struct Scsi_Host *shost; 5573 5574 /* Initialize HBA FC structure */ 5575 phba->fc_edtov = FF_DEF_EDTOV; 5576 phba->fc_ratov = FF_DEF_RATOV; 5577 phba->fc_altov = FF_DEF_ALTOV; 5578 phba->fc_arbtov = FF_DEF_ARBTOV; 5579 5580 atomic_set(&phba->sdev_cnt, 0); 5581 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5582 if (!vport) 5583 return -ENODEV; 5584 5585 shost = lpfc_shost_from_vport(vport); 5586 phba->pport = vport; 5587 lpfc_debugfs_initialize(vport); 5588 /* Put reference to SCSI host to driver's device private data */ 5589 pci_set_drvdata(phba->pcidev, shost); 5590 5591 return 0; 5592 } 5593 5594 /** 5595 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5596 * @phba: pointer to lpfc hba data structure. 5597 * 5598 * This routine is invoked to destroy HBA physical port and the associated 5599 * SCSI host. 5600 **/ 5601 static void 5602 lpfc_destroy_shost(struct lpfc_hba *phba) 5603 { 5604 struct lpfc_vport *vport = phba->pport; 5605 5606 /* Destroy physical port that associated with the SCSI host */ 5607 destroy_port(vport); 5608 5609 return; 5610 } 5611 5612 /** 5613 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5614 * @phba: pointer to lpfc hba data structure. 5615 * @shost: the shost to be used to detect Block guard settings. 5616 * 5617 * This routine sets up the local Block guard protocol settings for @shost. 5618 * This routine also allocates memory for debugging bg buffers. 5619 **/ 5620 static void 5621 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5622 { 5623 uint32_t old_mask; 5624 uint32_t old_guard; 5625 5626 int pagecnt = 10; 5627 if (lpfc_prot_mask && lpfc_prot_guard) { 5628 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5629 "1478 Registering BlockGuard with the " 5630 "SCSI layer\n"); 5631 5632 old_mask = lpfc_prot_mask; 5633 old_guard = lpfc_prot_guard; 5634 5635 /* Only allow supported values */ 5636 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5637 SHOST_DIX_TYPE0_PROTECTION | 5638 SHOST_DIX_TYPE1_PROTECTION); 5639 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5640 5641 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5642 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5643 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5644 5645 if (lpfc_prot_mask && lpfc_prot_guard) { 5646 if ((old_mask != lpfc_prot_mask) || 5647 (old_guard != lpfc_prot_guard)) 5648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5649 "1475 Registering BlockGuard with the " 5650 "SCSI layer: mask %d guard %d\n", 5651 lpfc_prot_mask, lpfc_prot_guard); 5652 5653 scsi_host_set_prot(shost, lpfc_prot_mask); 5654 scsi_host_set_guard(shost, lpfc_prot_guard); 5655 } else 5656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5657 "1479 Not Registering BlockGuard with the SCSI " 5658 "layer, Bad protection parameters: %d %d\n", 5659 old_mask, old_guard); 5660 } 5661 5662 if (!_dump_buf_data) { 5663 while (pagecnt) { 5664 spin_lock_init(&_dump_buf_lock); 5665 _dump_buf_data = 5666 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5667 if (_dump_buf_data) { 5668 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5669 "9043 BLKGRD: allocated %d pages for " 5670 "_dump_buf_data at 0x%p\n", 5671 (1 << pagecnt), _dump_buf_data); 5672 _dump_buf_data_order = pagecnt; 5673 memset(_dump_buf_data, 0, 5674 ((1 << PAGE_SHIFT) << pagecnt)); 5675 break; 5676 } else 5677 --pagecnt; 5678 } 5679 if (!_dump_buf_data_order) 5680 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5681 "9044 BLKGRD: ERROR unable to allocate " 5682 "memory for hexdump\n"); 5683 } else 5684 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5685 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5686 "\n", _dump_buf_data); 5687 if (!_dump_buf_dif) { 5688 while (pagecnt) { 5689 _dump_buf_dif = 5690 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5691 if (_dump_buf_dif) { 5692 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5693 "9046 BLKGRD: allocated %d pages for " 5694 "_dump_buf_dif at 0x%p\n", 5695 (1 << pagecnt), _dump_buf_dif); 5696 _dump_buf_dif_order = pagecnt; 5697 memset(_dump_buf_dif, 0, 5698 ((1 << PAGE_SHIFT) << pagecnt)); 5699 break; 5700 } else 5701 --pagecnt; 5702 } 5703 if (!_dump_buf_dif_order) 5704 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5705 "9047 BLKGRD: ERROR unable to allocate " 5706 "memory for hexdump\n"); 5707 } else 5708 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5709 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5710 _dump_buf_dif); 5711 } 5712 5713 /** 5714 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5715 * @phba: pointer to lpfc hba data structure. 5716 * 5717 * This routine is invoked to perform all the necessary post initialization 5718 * setup for the device. 5719 **/ 5720 static void 5721 lpfc_post_init_setup(struct lpfc_hba *phba) 5722 { 5723 struct Scsi_Host *shost; 5724 struct lpfc_adapter_event_header adapter_event; 5725 5726 /* Get the default values for Model Name and Description */ 5727 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5728 5729 /* 5730 * hba setup may have changed the hba_queue_depth so we need to 5731 * adjust the value of can_queue. 5732 */ 5733 shost = pci_get_drvdata(phba->pcidev); 5734 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5735 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5736 lpfc_setup_bg(phba, shost); 5737 5738 lpfc_host_attrib_init(shost); 5739 5740 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5741 spin_lock_irq(shost->host_lock); 5742 lpfc_poll_start_timer(phba); 5743 spin_unlock_irq(shost->host_lock); 5744 } 5745 5746 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5747 "0428 Perform SCSI scan\n"); 5748 /* Send board arrival event to upper layer */ 5749 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5750 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5751 fc_host_post_vendor_event(shost, fc_get_event_number(), 5752 sizeof(adapter_event), 5753 (char *) &adapter_event, 5754 LPFC_NL_VENDOR_ID); 5755 return; 5756 } 5757 5758 /** 5759 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5760 * @phba: pointer to lpfc hba data structure. 5761 * 5762 * This routine is invoked to set up the PCI device memory space for device 5763 * with SLI-3 interface spec. 5764 * 5765 * Return codes 5766 * 0 - successful 5767 * other values - error 5768 **/ 5769 static int 5770 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5771 { 5772 struct pci_dev *pdev; 5773 unsigned long bar0map_len, bar2map_len; 5774 int i, hbq_count; 5775 void *ptr; 5776 int error = -ENODEV; 5777 5778 /* Obtain PCI device reference */ 5779 if (!phba->pcidev) 5780 return error; 5781 else 5782 pdev = phba->pcidev; 5783 5784 /* Set the device DMA mask size */ 5785 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5786 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5787 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5788 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5789 return error; 5790 } 5791 } 5792 5793 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5794 * required by each mapping. 5795 */ 5796 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5797 bar0map_len = pci_resource_len(pdev, 0); 5798 5799 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5800 bar2map_len = pci_resource_len(pdev, 2); 5801 5802 /* Map HBA SLIM to a kernel virtual address. */ 5803 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5804 if (!phba->slim_memmap_p) { 5805 dev_printk(KERN_ERR, &pdev->dev, 5806 "ioremap failed for SLIM memory.\n"); 5807 goto out; 5808 } 5809 5810 /* Map HBA Control Registers to a kernel virtual address. */ 5811 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5812 if (!phba->ctrl_regs_memmap_p) { 5813 dev_printk(KERN_ERR, &pdev->dev, 5814 "ioremap failed for HBA control registers.\n"); 5815 goto out_iounmap_slim; 5816 } 5817 5818 /* Allocate memory for SLI-2 structures */ 5819 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5820 SLI2_SLIM_SIZE, 5821 &phba->slim2p.phys, 5822 GFP_KERNEL); 5823 if (!phba->slim2p.virt) 5824 goto out_iounmap; 5825 5826 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5827 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5828 phba->mbox_ext = (phba->slim2p.virt + 5829 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5830 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5831 phba->IOCBs = (phba->slim2p.virt + 5832 offsetof(struct lpfc_sli2_slim, IOCBs)); 5833 5834 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5835 lpfc_sli_hbq_size(), 5836 &phba->hbqslimp.phys, 5837 GFP_KERNEL); 5838 if (!phba->hbqslimp.virt) 5839 goto out_free_slim; 5840 5841 hbq_count = lpfc_sli_hbq_count(); 5842 ptr = phba->hbqslimp.virt; 5843 for (i = 0; i < hbq_count; ++i) { 5844 phba->hbqs[i].hbq_virt = ptr; 5845 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5846 ptr += (lpfc_hbq_defs[i]->entry_count * 5847 sizeof(struct lpfc_hbq_entry)); 5848 } 5849 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 5850 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 5851 5852 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 5853 5854 INIT_LIST_HEAD(&phba->rb_pend_list); 5855 5856 phba->MBslimaddr = phba->slim_memmap_p; 5857 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 5858 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 5859 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 5860 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 5861 5862 return 0; 5863 5864 out_free_slim: 5865 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5866 phba->slim2p.virt, phba->slim2p.phys); 5867 out_iounmap: 5868 iounmap(phba->ctrl_regs_memmap_p); 5869 out_iounmap_slim: 5870 iounmap(phba->slim_memmap_p); 5871 out: 5872 return error; 5873 } 5874 5875 /** 5876 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 5877 * @phba: pointer to lpfc hba data structure. 5878 * 5879 * This routine is invoked to unset the PCI device memory space for device 5880 * with SLI-3 interface spec. 5881 **/ 5882 static void 5883 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 5884 { 5885 struct pci_dev *pdev; 5886 5887 /* Obtain PCI device reference */ 5888 if (!phba->pcidev) 5889 return; 5890 else 5891 pdev = phba->pcidev; 5892 5893 /* Free coherent DMA memory allocated */ 5894 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 5895 phba->hbqslimp.virt, phba->hbqslimp.phys); 5896 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 5897 phba->slim2p.virt, phba->slim2p.phys); 5898 5899 /* I/O memory unmap */ 5900 iounmap(phba->ctrl_regs_memmap_p); 5901 iounmap(phba->slim_memmap_p); 5902 5903 return; 5904 } 5905 5906 /** 5907 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 5908 * @phba: pointer to lpfc hba data structure. 5909 * 5910 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 5911 * done and check status. 5912 * 5913 * Return 0 if successful, otherwise -ENODEV. 5914 **/ 5915 int 5916 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 5917 { 5918 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 5919 struct lpfc_register reg_data; 5920 int i, port_error = 0; 5921 uint32_t if_type; 5922 5923 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 5924 memset(®_data, 0, sizeof(reg_data)); 5925 if (!phba->sli4_hba.PSMPHRregaddr) 5926 return -ENODEV; 5927 5928 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 5929 for (i = 0; i < 3000; i++) { 5930 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 5931 &portsmphr_reg.word0) || 5932 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 5933 /* Port has a fatal POST error, break out */ 5934 port_error = -ENODEV; 5935 break; 5936 } 5937 if (LPFC_POST_STAGE_PORT_READY == 5938 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 5939 break; 5940 msleep(10); 5941 } 5942 5943 /* 5944 * If there was a port error during POST, then don't proceed with 5945 * other register reads as the data may not be valid. Just exit. 5946 */ 5947 if (port_error) { 5948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5949 "1408 Port Failed POST - portsmphr=0x%x, " 5950 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 5951 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 5952 portsmphr_reg.word0, 5953 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 5954 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 5955 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 5956 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 5957 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 5958 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 5959 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 5960 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 5961 } else { 5962 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5963 "2534 Device Info: SLIFamily=0x%x, " 5964 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 5965 "SLIHint_2=0x%x, FT=0x%x\n", 5966 bf_get(lpfc_sli_intf_sli_family, 5967 &phba->sli4_hba.sli_intf), 5968 bf_get(lpfc_sli_intf_slirev, 5969 &phba->sli4_hba.sli_intf), 5970 bf_get(lpfc_sli_intf_if_type, 5971 &phba->sli4_hba.sli_intf), 5972 bf_get(lpfc_sli_intf_sli_hint1, 5973 &phba->sli4_hba.sli_intf), 5974 bf_get(lpfc_sli_intf_sli_hint2, 5975 &phba->sli4_hba.sli_intf), 5976 bf_get(lpfc_sli_intf_func_type, 5977 &phba->sli4_hba.sli_intf)); 5978 /* 5979 * Check for other Port errors during the initialization 5980 * process. Fail the load if the port did not come up 5981 * correctly. 5982 */ 5983 if_type = bf_get(lpfc_sli_intf_if_type, 5984 &phba->sli4_hba.sli_intf); 5985 switch (if_type) { 5986 case LPFC_SLI_INTF_IF_TYPE_0: 5987 phba->sli4_hba.ue_mask_lo = 5988 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 5989 phba->sli4_hba.ue_mask_hi = 5990 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 5991 uerrlo_reg.word0 = 5992 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 5993 uerrhi_reg.word0 = 5994 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 5995 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 5996 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 5997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5998 "1422 Unrecoverable Error " 5999 "Detected during POST " 6000 "uerr_lo_reg=0x%x, " 6001 "uerr_hi_reg=0x%x, " 6002 "ue_mask_lo_reg=0x%x, " 6003 "ue_mask_hi_reg=0x%x\n", 6004 uerrlo_reg.word0, 6005 uerrhi_reg.word0, 6006 phba->sli4_hba.ue_mask_lo, 6007 phba->sli4_hba.ue_mask_hi); 6008 port_error = -ENODEV; 6009 } 6010 break; 6011 case LPFC_SLI_INTF_IF_TYPE_2: 6012 /* Final checks. The port status should be clean. */ 6013 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6014 ®_data.word0) || 6015 (bf_get(lpfc_sliport_status_err, ®_data) && 6016 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6017 phba->work_status[0] = 6018 readl(phba->sli4_hba.u.if_type2. 6019 ERR1regaddr); 6020 phba->work_status[1] = 6021 readl(phba->sli4_hba.u.if_type2. 6022 ERR2regaddr); 6023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6024 "2888 Unrecoverable port error " 6025 "following POST: port status reg " 6026 "0x%x, port_smphr reg 0x%x, " 6027 "error 1=0x%x, error 2=0x%x\n", 6028 reg_data.word0, 6029 portsmphr_reg.word0, 6030 phba->work_status[0], 6031 phba->work_status[1]); 6032 port_error = -ENODEV; 6033 } 6034 break; 6035 case LPFC_SLI_INTF_IF_TYPE_1: 6036 default: 6037 break; 6038 } 6039 } 6040 return port_error; 6041 } 6042 6043 /** 6044 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6045 * @phba: pointer to lpfc hba data structure. 6046 * @if_type: The SLI4 interface type getting configured. 6047 * 6048 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6049 * memory map. 6050 **/ 6051 static void 6052 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6053 { 6054 switch (if_type) { 6055 case LPFC_SLI_INTF_IF_TYPE_0: 6056 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6057 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6058 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6059 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6060 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6061 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6062 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6063 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6064 phba->sli4_hba.SLIINTFregaddr = 6065 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6066 break; 6067 case LPFC_SLI_INTF_IF_TYPE_2: 6068 phba->sli4_hba.u.if_type2.ERR1regaddr = 6069 phba->sli4_hba.conf_regs_memmap_p + 6070 LPFC_CTL_PORT_ER1_OFFSET; 6071 phba->sli4_hba.u.if_type2.ERR2regaddr = 6072 phba->sli4_hba.conf_regs_memmap_p + 6073 LPFC_CTL_PORT_ER2_OFFSET; 6074 phba->sli4_hba.u.if_type2.CTRLregaddr = 6075 phba->sli4_hba.conf_regs_memmap_p + 6076 LPFC_CTL_PORT_CTL_OFFSET; 6077 phba->sli4_hba.u.if_type2.STATUSregaddr = 6078 phba->sli4_hba.conf_regs_memmap_p + 6079 LPFC_CTL_PORT_STA_OFFSET; 6080 phba->sli4_hba.SLIINTFregaddr = 6081 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6082 phba->sli4_hba.PSMPHRregaddr = 6083 phba->sli4_hba.conf_regs_memmap_p + 6084 LPFC_CTL_PORT_SEM_OFFSET; 6085 phba->sli4_hba.RQDBregaddr = 6086 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 6087 phba->sli4_hba.WQDBregaddr = 6088 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 6089 phba->sli4_hba.EQCQDBregaddr = 6090 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6091 phba->sli4_hba.MQDBregaddr = 6092 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6093 phba->sli4_hba.BMBXregaddr = 6094 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6095 break; 6096 case LPFC_SLI_INTF_IF_TYPE_1: 6097 default: 6098 dev_printk(KERN_ERR, &phba->pcidev->dev, 6099 "FATAL - unsupported SLI4 interface type - %d\n", 6100 if_type); 6101 break; 6102 } 6103 } 6104 6105 /** 6106 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6107 * @phba: pointer to lpfc hba data structure. 6108 * 6109 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6110 * memory map. 6111 **/ 6112 static void 6113 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6114 { 6115 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6116 LPFC_SLIPORT_IF0_SMPHR; 6117 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6118 LPFC_HST_ISR0; 6119 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6120 LPFC_HST_IMR0; 6121 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6122 LPFC_HST_ISCR0; 6123 } 6124 6125 /** 6126 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6127 * @phba: pointer to lpfc hba data structure. 6128 * @vf: virtual function number 6129 * 6130 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6131 * based on the given viftual function number, @vf. 6132 * 6133 * Return 0 if successful, otherwise -ENODEV. 6134 **/ 6135 static int 6136 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6137 { 6138 if (vf > LPFC_VIR_FUNC_MAX) 6139 return -ENODEV; 6140 6141 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6142 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 6143 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6144 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 6145 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6146 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6147 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6148 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6149 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6150 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6151 return 0; 6152 } 6153 6154 /** 6155 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6156 * @phba: pointer to lpfc hba data structure. 6157 * 6158 * This routine is invoked to create the bootstrap mailbox 6159 * region consistent with the SLI-4 interface spec. This 6160 * routine allocates all memory necessary to communicate 6161 * mailbox commands to the port and sets up all alignment 6162 * needs. No locks are expected to be held when calling 6163 * this routine. 6164 * 6165 * Return codes 6166 * 0 - successful 6167 * -ENOMEM - could not allocated memory. 6168 **/ 6169 static int 6170 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6171 { 6172 uint32_t bmbx_size; 6173 struct lpfc_dmabuf *dmabuf; 6174 struct dma_address *dma_address; 6175 uint32_t pa_addr; 6176 uint64_t phys_addr; 6177 6178 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6179 if (!dmabuf) 6180 return -ENOMEM; 6181 6182 /* 6183 * The bootstrap mailbox region is comprised of 2 parts 6184 * plus an alignment restriction of 16 bytes. 6185 */ 6186 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6187 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6188 bmbx_size, 6189 &dmabuf->phys, 6190 GFP_KERNEL); 6191 if (!dmabuf->virt) { 6192 kfree(dmabuf); 6193 return -ENOMEM; 6194 } 6195 memset(dmabuf->virt, 0, bmbx_size); 6196 6197 /* 6198 * Initialize the bootstrap mailbox pointers now so that the register 6199 * operations are simple later. The mailbox dma address is required 6200 * to be 16-byte aligned. Also align the virtual memory as each 6201 * maibox is copied into the bmbx mailbox region before issuing the 6202 * command to the port. 6203 */ 6204 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6205 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6206 6207 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6208 LPFC_ALIGN_16_BYTE); 6209 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6210 LPFC_ALIGN_16_BYTE); 6211 6212 /* 6213 * Set the high and low physical addresses now. The SLI4 alignment 6214 * requirement is 16 bytes and the mailbox is posted to the port 6215 * as two 30-bit addresses. The other data is a bit marking whether 6216 * the 30-bit address is the high or low address. 6217 * Upcast bmbx aphys to 64bits so shift instruction compiles 6218 * clean on 32 bit machines. 6219 */ 6220 dma_address = &phba->sli4_hba.bmbx.dma_address; 6221 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6222 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6223 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6224 LPFC_BMBX_BIT1_ADDR_HI); 6225 6226 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6227 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6228 LPFC_BMBX_BIT1_ADDR_LO); 6229 return 0; 6230 } 6231 6232 /** 6233 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6234 * @phba: pointer to lpfc hba data structure. 6235 * 6236 * This routine is invoked to teardown the bootstrap mailbox 6237 * region and release all host resources. This routine requires 6238 * the caller to ensure all mailbox commands recovered, no 6239 * additional mailbox comands are sent, and interrupts are disabled 6240 * before calling this routine. 6241 * 6242 **/ 6243 static void 6244 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6245 { 6246 dma_free_coherent(&phba->pcidev->dev, 6247 phba->sli4_hba.bmbx.bmbx_size, 6248 phba->sli4_hba.bmbx.dmabuf->virt, 6249 phba->sli4_hba.bmbx.dmabuf->phys); 6250 6251 kfree(phba->sli4_hba.bmbx.dmabuf); 6252 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6253 } 6254 6255 /** 6256 * lpfc_sli4_read_config - Get the config parameters. 6257 * @phba: pointer to lpfc hba data structure. 6258 * 6259 * This routine is invoked to read the configuration parameters from the HBA. 6260 * The configuration parameters are used to set the base and maximum values 6261 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6262 * allocation for the port. 6263 * 6264 * Return codes 6265 * 0 - successful 6266 * -ENOMEM - No available memory 6267 * -EIO - The mailbox failed to complete successfully. 6268 **/ 6269 int 6270 lpfc_sli4_read_config(struct lpfc_hba *phba) 6271 { 6272 LPFC_MBOXQ_t *pmb; 6273 struct lpfc_mbx_read_config *rd_config; 6274 union lpfc_sli4_cfg_shdr *shdr; 6275 uint32_t shdr_status, shdr_add_status; 6276 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6277 struct lpfc_rsrc_desc_fcfcoe *desc; 6278 uint32_t desc_count; 6279 int length, i, rc = 0; 6280 6281 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6282 if (!pmb) { 6283 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6284 "2011 Unable to allocate memory for issuing " 6285 "SLI_CONFIG_SPECIAL mailbox command\n"); 6286 return -ENOMEM; 6287 } 6288 6289 lpfc_read_config(phba, pmb); 6290 6291 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6292 if (rc != MBX_SUCCESS) { 6293 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6294 "2012 Mailbox failed , mbxCmd x%x " 6295 "READ_CONFIG, mbxStatus x%x\n", 6296 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6297 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6298 rc = -EIO; 6299 } else { 6300 rd_config = &pmb->u.mqe.un.rd_config; 6301 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6302 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6303 phba->sli4_hba.lnk_info.lnk_tp = 6304 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6305 phba->sli4_hba.lnk_info.lnk_no = 6306 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6307 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6308 "3081 lnk_type:%d, lnk_numb:%d\n", 6309 phba->sli4_hba.lnk_info.lnk_tp, 6310 phba->sli4_hba.lnk_info.lnk_no); 6311 } else 6312 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6313 "3082 Mailbox (x%x) returned ldv:x0\n", 6314 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6315 phba->sli4_hba.extents_in_use = 6316 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6317 phba->sli4_hba.max_cfg_param.max_xri = 6318 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6319 phba->sli4_hba.max_cfg_param.xri_base = 6320 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6321 phba->sli4_hba.max_cfg_param.max_vpi = 6322 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6323 phba->sli4_hba.max_cfg_param.vpi_base = 6324 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6325 phba->sli4_hba.max_cfg_param.max_rpi = 6326 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6327 phba->sli4_hba.max_cfg_param.rpi_base = 6328 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6329 phba->sli4_hba.max_cfg_param.max_vfi = 6330 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6331 phba->sli4_hba.max_cfg_param.vfi_base = 6332 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6333 phba->sli4_hba.max_cfg_param.max_fcfi = 6334 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6335 phba->sli4_hba.max_cfg_param.max_eq = 6336 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6337 phba->sli4_hba.max_cfg_param.max_rq = 6338 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6339 phba->sli4_hba.max_cfg_param.max_wq = 6340 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6341 phba->sli4_hba.max_cfg_param.max_cq = 6342 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6343 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6344 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6345 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6346 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6347 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6348 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6349 phba->max_vports = phba->max_vpi; 6350 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6351 "2003 cfg params Extents? %d " 6352 "XRI(B:%d M:%d), " 6353 "VPI(B:%d M:%d) " 6354 "VFI(B:%d M:%d) " 6355 "RPI(B:%d M:%d) " 6356 "FCFI(Count:%d)\n", 6357 phba->sli4_hba.extents_in_use, 6358 phba->sli4_hba.max_cfg_param.xri_base, 6359 phba->sli4_hba.max_cfg_param.max_xri, 6360 phba->sli4_hba.max_cfg_param.vpi_base, 6361 phba->sli4_hba.max_cfg_param.max_vpi, 6362 phba->sli4_hba.max_cfg_param.vfi_base, 6363 phba->sli4_hba.max_cfg_param.max_vfi, 6364 phba->sli4_hba.max_cfg_param.rpi_base, 6365 phba->sli4_hba.max_cfg_param.max_rpi, 6366 phba->sli4_hba.max_cfg_param.max_fcfi); 6367 } 6368 6369 if (rc) 6370 goto read_cfg_out; 6371 6372 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6373 if (phba->cfg_hba_queue_depth > 6374 (phba->sli4_hba.max_cfg_param.max_xri - 6375 lpfc_sli4_get_els_iocb_cnt(phba))) 6376 phba->cfg_hba_queue_depth = 6377 phba->sli4_hba.max_cfg_param.max_xri - 6378 lpfc_sli4_get_els_iocb_cnt(phba); 6379 6380 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6381 LPFC_SLI_INTF_IF_TYPE_2) 6382 goto read_cfg_out; 6383 6384 /* get the pf# and vf# for SLI4 if_type 2 port */ 6385 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6386 sizeof(struct lpfc_sli4_cfg_mhdr)); 6387 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6388 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6389 length, LPFC_SLI4_MBX_EMBED); 6390 6391 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6392 shdr = (union lpfc_sli4_cfg_shdr *) 6393 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6394 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6395 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6396 if (rc || shdr_status || shdr_add_status) { 6397 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6398 "3026 Mailbox failed , mbxCmd x%x " 6399 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6400 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6401 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6402 rc = -EIO; 6403 goto read_cfg_out; 6404 } 6405 6406 /* search for fc_fcoe resrouce descriptor */ 6407 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6408 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6409 6410 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6411 desc = (struct lpfc_rsrc_desc_fcfcoe *) 6412 &get_func_cfg->func_cfg.desc[i]; 6413 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6414 bf_get(lpfc_rsrc_desc_pcie_type, desc)) { 6415 phba->sli4_hba.iov.pf_number = 6416 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6417 phba->sli4_hba.iov.vf_number = 6418 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6419 break; 6420 } 6421 } 6422 6423 if (i < LPFC_RSRC_DESC_MAX_NUM) 6424 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6425 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6426 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6427 phba->sli4_hba.iov.vf_number); 6428 else { 6429 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6430 "3028 GET_FUNCTION_CONFIG: failed to find " 6431 "Resrouce Descriptor:x%x\n", 6432 LPFC_RSRC_DESC_TYPE_FCFCOE); 6433 rc = -EIO; 6434 } 6435 6436 read_cfg_out: 6437 mempool_free(pmb, phba->mbox_mem_pool); 6438 return rc; 6439 } 6440 6441 /** 6442 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6443 * @phba: pointer to lpfc hba data structure. 6444 * 6445 * This routine is invoked to setup the port-side endian order when 6446 * the port if_type is 0. This routine has no function for other 6447 * if_types. 6448 * 6449 * Return codes 6450 * 0 - successful 6451 * -ENOMEM - No available memory 6452 * -EIO - The mailbox failed to complete successfully. 6453 **/ 6454 static int 6455 lpfc_setup_endian_order(struct lpfc_hba *phba) 6456 { 6457 LPFC_MBOXQ_t *mboxq; 6458 uint32_t if_type, rc = 0; 6459 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6460 HOST_ENDIAN_HIGH_WORD1}; 6461 6462 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6463 switch (if_type) { 6464 case LPFC_SLI_INTF_IF_TYPE_0: 6465 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6466 GFP_KERNEL); 6467 if (!mboxq) { 6468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6469 "0492 Unable to allocate memory for " 6470 "issuing SLI_CONFIG_SPECIAL mailbox " 6471 "command\n"); 6472 return -ENOMEM; 6473 } 6474 6475 /* 6476 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6477 * two words to contain special data values and no other data. 6478 */ 6479 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6480 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6481 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6482 if (rc != MBX_SUCCESS) { 6483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6484 "0493 SLI_CONFIG_SPECIAL mailbox " 6485 "failed with status x%x\n", 6486 rc); 6487 rc = -EIO; 6488 } 6489 mempool_free(mboxq, phba->mbox_mem_pool); 6490 break; 6491 case LPFC_SLI_INTF_IF_TYPE_2: 6492 case LPFC_SLI_INTF_IF_TYPE_1: 6493 default: 6494 break; 6495 } 6496 return rc; 6497 } 6498 6499 /** 6500 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6501 * @phba: pointer to lpfc hba data structure. 6502 * 6503 * This routine is invoked to check the user settable queue counts for EQs and 6504 * CQs. after this routine is called the counts will be set to valid values that 6505 * adhere to the constraints of the system's interrupt vectors and the port's 6506 * queue resources. 6507 * 6508 * Return codes 6509 * 0 - successful 6510 * -ENOMEM - No available memory 6511 **/ 6512 static int 6513 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6514 { 6515 int cfg_fcp_wq_count; 6516 int cfg_fcp_eq_count; 6517 6518 /* 6519 * Sanity check for confiugred queue parameters against the run-time 6520 * device parameters 6521 */ 6522 6523 /* Sanity check on FCP fast-path WQ parameters */ 6524 cfg_fcp_wq_count = phba->cfg_fcp_wq_count; 6525 if (cfg_fcp_wq_count > 6526 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) { 6527 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq - 6528 LPFC_SP_WQN_DEF; 6529 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) { 6530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6531 "2581 Not enough WQs (%d) from " 6532 "the pci function for supporting " 6533 "FCP WQs (%d)\n", 6534 phba->sli4_hba.max_cfg_param.max_wq, 6535 phba->cfg_fcp_wq_count); 6536 goto out_error; 6537 } 6538 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6539 "2582 Not enough WQs (%d) from the pci " 6540 "function for supporting the requested " 6541 "FCP WQs (%d), the actual FCP WQs can " 6542 "be supported: %d\n", 6543 phba->sli4_hba.max_cfg_param.max_wq, 6544 phba->cfg_fcp_wq_count, cfg_fcp_wq_count); 6545 } 6546 /* The actual number of FCP work queues adopted */ 6547 phba->cfg_fcp_wq_count = cfg_fcp_wq_count; 6548 6549 /* Sanity check on FCP fast-path EQ parameters */ 6550 cfg_fcp_eq_count = phba->cfg_fcp_eq_count; 6551 if (cfg_fcp_eq_count > 6552 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) { 6553 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq - 6554 LPFC_SP_EQN_DEF; 6555 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) { 6556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6557 "2574 Not enough EQs (%d) from the " 6558 "pci function for supporting FCP " 6559 "EQs (%d)\n", 6560 phba->sli4_hba.max_cfg_param.max_eq, 6561 phba->cfg_fcp_eq_count); 6562 goto out_error; 6563 } 6564 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6565 "2575 Not enough EQs (%d) from the pci " 6566 "function for supporting the requested " 6567 "FCP EQs (%d), the actual FCP EQs can " 6568 "be supported: %d\n", 6569 phba->sli4_hba.max_cfg_param.max_eq, 6570 phba->cfg_fcp_eq_count, cfg_fcp_eq_count); 6571 } 6572 /* It does not make sense to have more EQs than WQs */ 6573 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) { 6574 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6575 "2593 The FCP EQ count(%d) cannot be greater " 6576 "than the FCP WQ count(%d), limiting the " 6577 "FCP EQ count to %d\n", cfg_fcp_eq_count, 6578 phba->cfg_fcp_wq_count, 6579 phba->cfg_fcp_wq_count); 6580 cfg_fcp_eq_count = phba->cfg_fcp_wq_count; 6581 } 6582 /* The actual number of FCP event queues adopted */ 6583 phba->cfg_fcp_eq_count = cfg_fcp_eq_count; 6584 /* The overall number of event queues used */ 6585 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF; 6586 6587 /* Get EQ depth from module parameter, fake the default for now */ 6588 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6589 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6590 6591 /* Get CQ depth from module parameter, fake the default for now */ 6592 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6593 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6594 6595 return 0; 6596 out_error: 6597 return -ENOMEM; 6598 } 6599 6600 /** 6601 * lpfc_sli4_queue_create - Create all the SLI4 queues 6602 * @phba: pointer to lpfc hba data structure. 6603 * 6604 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6605 * operation. For each SLI4 queue type, the parameters such as queue entry 6606 * count (queue depth) shall be taken from the module parameter. For now, 6607 * we just use some constant number as place holder. 6608 * 6609 * Return codes 6610 * 0 - sucessful 6611 * -ENOMEM - No availble memory 6612 * -EIO - The mailbox failed to complete successfully. 6613 **/ 6614 int 6615 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6616 { 6617 struct lpfc_queue *qdesc; 6618 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6619 6620 /* 6621 * Create Event Queues (EQs) 6622 */ 6623 6624 /* Create slow path event queue */ 6625 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6626 phba->sli4_hba.eq_ecount); 6627 if (!qdesc) { 6628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6629 "0496 Failed allocate slow-path EQ\n"); 6630 goto out_error; 6631 } 6632 phba->sli4_hba.sp_eq = qdesc; 6633 6634 /* 6635 * Create fast-path FCP Event Queue(s). The cfg_fcp_eq_count can be 6636 * zero whenever there is exactly one interrupt vector. This is not 6637 * an error. 6638 */ 6639 if (phba->cfg_fcp_eq_count) { 6640 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) * 6641 phba->cfg_fcp_eq_count), GFP_KERNEL); 6642 if (!phba->sli4_hba.fp_eq) { 6643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6644 "2576 Failed allocate memory for " 6645 "fast-path EQ record array\n"); 6646 goto out_free_sp_eq; 6647 } 6648 } 6649 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6650 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6651 phba->sli4_hba.eq_ecount); 6652 if (!qdesc) { 6653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6654 "0497 Failed allocate fast-path EQ\n"); 6655 goto out_free_fp_eq; 6656 } 6657 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc; 6658 } 6659 6660 /* 6661 * Create Complete Queues (CQs) 6662 */ 6663 6664 /* Create slow-path Mailbox Command Complete Queue */ 6665 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6666 phba->sli4_hba.cq_ecount); 6667 if (!qdesc) { 6668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6669 "0500 Failed allocate slow-path mailbox CQ\n"); 6670 goto out_free_fp_eq; 6671 } 6672 phba->sli4_hba.mbx_cq = qdesc; 6673 6674 /* Create slow-path ELS Complete Queue */ 6675 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6676 phba->sli4_hba.cq_ecount); 6677 if (!qdesc) { 6678 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6679 "0501 Failed allocate slow-path ELS CQ\n"); 6680 goto out_free_mbx_cq; 6681 } 6682 phba->sli4_hba.els_cq = qdesc; 6683 6684 6685 /* 6686 * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs. 6687 * If there are no FCP EQs then create exactly one FCP CQ. 6688 */ 6689 if (phba->cfg_fcp_eq_count) 6690 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6691 phba->cfg_fcp_eq_count), 6692 GFP_KERNEL); 6693 else 6694 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *), 6695 GFP_KERNEL); 6696 if (!phba->sli4_hba.fcp_cq) { 6697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6698 "2577 Failed allocate memory for fast-path " 6699 "CQ record array\n"); 6700 goto out_free_els_cq; 6701 } 6702 fcp_cqidx = 0; 6703 do { 6704 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6705 phba->sli4_hba.cq_ecount); 6706 if (!qdesc) { 6707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6708 "0499 Failed allocate fast-path FCP " 6709 "CQ (%d)\n", fcp_cqidx); 6710 goto out_free_fcp_cq; 6711 } 6712 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc; 6713 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 6714 6715 /* Create Mailbox Command Queue */ 6716 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6717 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6718 6719 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6720 phba->sli4_hba.mq_ecount); 6721 if (!qdesc) { 6722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6723 "0505 Failed allocate slow-path MQ\n"); 6724 goto out_free_fcp_cq; 6725 } 6726 phba->sli4_hba.mbx_wq = qdesc; 6727 6728 /* 6729 * Create all the Work Queues (WQs) 6730 */ 6731 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6732 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6733 6734 /* Create slow-path ELS Work Queue */ 6735 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6736 phba->sli4_hba.wq_ecount); 6737 if (!qdesc) { 6738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6739 "0504 Failed allocate slow-path ELS WQ\n"); 6740 goto out_free_mbx_wq; 6741 } 6742 phba->sli4_hba.els_wq = qdesc; 6743 6744 /* Create fast-path FCP Work Queue(s) */ 6745 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6746 phba->cfg_fcp_wq_count), GFP_KERNEL); 6747 if (!phba->sli4_hba.fcp_wq) { 6748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6749 "2578 Failed allocate memory for fast-path " 6750 "WQ record array\n"); 6751 goto out_free_els_wq; 6752 } 6753 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 6754 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6755 phba->sli4_hba.wq_ecount); 6756 if (!qdesc) { 6757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6758 "0503 Failed allocate fast-path FCP " 6759 "WQ (%d)\n", fcp_wqidx); 6760 goto out_free_fcp_wq; 6761 } 6762 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc; 6763 } 6764 6765 /* 6766 * Create Receive Queue (RQ) 6767 */ 6768 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6769 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6770 6771 /* Create Receive Queue for header */ 6772 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6773 phba->sli4_hba.rq_ecount); 6774 if (!qdesc) { 6775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6776 "0506 Failed allocate receive HRQ\n"); 6777 goto out_free_fcp_wq; 6778 } 6779 phba->sli4_hba.hdr_rq = qdesc; 6780 6781 /* Create Receive Queue for data */ 6782 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6783 phba->sli4_hba.rq_ecount); 6784 if (!qdesc) { 6785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6786 "0507 Failed allocate receive DRQ\n"); 6787 goto out_free_hdr_rq; 6788 } 6789 phba->sli4_hba.dat_rq = qdesc; 6790 6791 return 0; 6792 6793 out_free_hdr_rq: 6794 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6795 phba->sli4_hba.hdr_rq = NULL; 6796 out_free_fcp_wq: 6797 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) { 6798 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]); 6799 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL; 6800 } 6801 kfree(phba->sli4_hba.fcp_wq); 6802 phba->sli4_hba.fcp_wq = NULL; 6803 out_free_els_wq: 6804 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6805 phba->sli4_hba.els_wq = NULL; 6806 out_free_mbx_wq: 6807 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6808 phba->sli4_hba.mbx_wq = NULL; 6809 out_free_fcp_cq: 6810 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) { 6811 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]); 6812 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL; 6813 } 6814 kfree(phba->sli4_hba.fcp_cq); 6815 phba->sli4_hba.fcp_cq = NULL; 6816 out_free_els_cq: 6817 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6818 phba->sli4_hba.els_cq = NULL; 6819 out_free_mbx_cq: 6820 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6821 phba->sli4_hba.mbx_cq = NULL; 6822 out_free_fp_eq: 6823 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) { 6824 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]); 6825 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL; 6826 } 6827 kfree(phba->sli4_hba.fp_eq); 6828 phba->sli4_hba.fp_eq = NULL; 6829 out_free_sp_eq: 6830 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6831 phba->sli4_hba.sp_eq = NULL; 6832 out_error: 6833 return -ENOMEM; 6834 } 6835 6836 /** 6837 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6838 * @phba: pointer to lpfc hba data structure. 6839 * 6840 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6841 * operation. 6842 * 6843 * Return codes 6844 * 0 - successful 6845 * -ENOMEM - No available memory 6846 * -EIO - The mailbox failed to complete successfully. 6847 **/ 6848 void 6849 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6850 { 6851 int fcp_qidx; 6852 6853 /* Release mailbox command work queue */ 6854 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6855 phba->sli4_hba.mbx_wq = NULL; 6856 6857 /* Release ELS work queue */ 6858 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 6859 phba->sli4_hba.els_wq = NULL; 6860 6861 /* Release FCP work queue */ 6862 if (phba->sli4_hba.fcp_wq != NULL) 6863 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; 6864 fcp_qidx++) 6865 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]); 6866 kfree(phba->sli4_hba.fcp_wq); 6867 phba->sli4_hba.fcp_wq = NULL; 6868 6869 /* Release unsolicited receive queue */ 6870 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 6871 phba->sli4_hba.hdr_rq = NULL; 6872 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 6873 phba->sli4_hba.dat_rq = NULL; 6874 6875 /* Release ELS complete queue */ 6876 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 6877 phba->sli4_hba.els_cq = NULL; 6878 6879 /* Release mailbox command complete queue */ 6880 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 6881 phba->sli4_hba.mbx_cq = NULL; 6882 6883 /* Release FCP response complete queue */ 6884 fcp_qidx = 0; 6885 if (phba->sli4_hba.fcp_cq != NULL) 6886 do 6887 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]); 6888 while (++fcp_qidx < phba->cfg_fcp_eq_count); 6889 kfree(phba->sli4_hba.fcp_cq); 6890 phba->sli4_hba.fcp_cq = NULL; 6891 6892 /* Release fast-path event queue */ 6893 if (phba->sli4_hba.fp_eq != NULL) 6894 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 6895 fcp_qidx++) 6896 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]); 6897 kfree(phba->sli4_hba.fp_eq); 6898 phba->sli4_hba.fp_eq = NULL; 6899 6900 /* Release slow-path event queue */ 6901 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq); 6902 phba->sli4_hba.sp_eq = NULL; 6903 6904 return; 6905 } 6906 6907 /** 6908 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 6909 * @phba: pointer to lpfc hba data structure. 6910 * 6911 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 6912 * operation. 6913 * 6914 * Return codes 6915 * 0 - successful 6916 * -ENOMEM - No available memory 6917 * -EIO - The mailbox failed to complete successfully. 6918 **/ 6919 int 6920 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 6921 { 6922 int rc = -ENOMEM; 6923 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 6924 int fcp_cq_index = 0; 6925 6926 /* 6927 * Set up Event Queues (EQs) 6928 */ 6929 6930 /* Set up slow-path event queue */ 6931 if (!phba->sli4_hba.sp_eq) { 6932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6933 "0520 Slow-path EQ not allocated\n"); 6934 goto out_error; 6935 } 6936 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq, 6937 LPFC_SP_DEF_IMAX); 6938 if (rc) { 6939 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6940 "0521 Failed setup of slow-path EQ: " 6941 "rc = 0x%x\n", rc); 6942 goto out_error; 6943 } 6944 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6945 "2583 Slow-path EQ setup: queue-id=%d\n", 6946 phba->sli4_hba.sp_eq->queue_id); 6947 6948 /* Set up fast-path event queue */ 6949 if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) { 6950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6951 "3147 Fast-path EQs not allocated\n"); 6952 rc = -ENOMEM; 6953 goto out_destroy_sp_eq; 6954 } 6955 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { 6956 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) { 6957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6958 "0522 Fast-path EQ (%d) not " 6959 "allocated\n", fcp_eqidx); 6960 rc = -ENOMEM; 6961 goto out_destroy_fp_eq; 6962 } 6963 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx], 6964 phba->cfg_fcp_imax); 6965 if (rc) { 6966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6967 "0523 Failed setup of fast-path EQ " 6968 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 6969 goto out_destroy_fp_eq; 6970 } 6971 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6972 "2584 Fast-path EQ setup: " 6973 "queue[%d]-id=%d\n", fcp_eqidx, 6974 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id); 6975 } 6976 6977 /* 6978 * Set up Complete Queues (CQs) 6979 */ 6980 6981 /* Set up slow-path MBOX Complete Queue as the first CQ */ 6982 if (!phba->sli4_hba.mbx_cq) { 6983 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6984 "0528 Mailbox CQ not allocated\n"); 6985 rc = -ENOMEM; 6986 goto out_destroy_fp_eq; 6987 } 6988 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq, 6989 LPFC_MCQ, LPFC_MBOX); 6990 if (rc) { 6991 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6992 "0529 Failed setup of slow-path mailbox CQ: " 6993 "rc = 0x%x\n", rc); 6994 goto out_destroy_fp_eq; 6995 } 6996 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6997 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 6998 phba->sli4_hba.mbx_cq->queue_id, 6999 phba->sli4_hba.sp_eq->queue_id); 7000 7001 /* Set up slow-path ELS Complete Queue */ 7002 if (!phba->sli4_hba.els_cq) { 7003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7004 "0530 ELS CQ not allocated\n"); 7005 rc = -ENOMEM; 7006 goto out_destroy_mbx_cq; 7007 } 7008 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq, 7009 LPFC_WCQ, LPFC_ELS); 7010 if (rc) { 7011 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7012 "0531 Failed setup of slow-path ELS CQ: " 7013 "rc = 0x%x\n", rc); 7014 goto out_destroy_mbx_cq; 7015 } 7016 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7017 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7018 phba->sli4_hba.els_cq->queue_id, 7019 phba->sli4_hba.sp_eq->queue_id); 7020 7021 /* Set up fast-path FCP Response Complete Queue */ 7022 if (!phba->sli4_hba.fcp_cq) { 7023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7024 "3148 Fast-path FCP CQ array not " 7025 "allocated\n"); 7026 rc = -ENOMEM; 7027 goto out_destroy_els_cq; 7028 } 7029 fcp_cqidx = 0; 7030 do { 7031 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7032 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7033 "0526 Fast-path FCP CQ (%d) not " 7034 "allocated\n", fcp_cqidx); 7035 rc = -ENOMEM; 7036 goto out_destroy_fcp_cq; 7037 } 7038 if (phba->cfg_fcp_eq_count) 7039 rc = lpfc_cq_create(phba, 7040 phba->sli4_hba.fcp_cq[fcp_cqidx], 7041 phba->sli4_hba.fp_eq[fcp_cqidx], 7042 LPFC_WCQ, LPFC_FCP); 7043 else 7044 rc = lpfc_cq_create(phba, 7045 phba->sli4_hba.fcp_cq[fcp_cqidx], 7046 phba->sli4_hba.sp_eq, 7047 LPFC_WCQ, LPFC_FCP); 7048 if (rc) { 7049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7050 "0527 Failed setup of fast-path FCP " 7051 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7052 goto out_destroy_fcp_cq; 7053 } 7054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7055 "2588 FCP CQ setup: cq[%d]-id=%d, " 7056 "parent %seq[%d]-id=%d\n", 7057 fcp_cqidx, 7058 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7059 (phba->cfg_fcp_eq_count) ? "" : "sp_", 7060 fcp_cqidx, 7061 (phba->cfg_fcp_eq_count) ? 7062 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id : 7063 phba->sli4_hba.sp_eq->queue_id); 7064 } while (++fcp_cqidx < phba->cfg_fcp_eq_count); 7065 7066 /* 7067 * Set up all the Work Queues (WQs) 7068 */ 7069 7070 /* Set up Mailbox Command Queue */ 7071 if (!phba->sli4_hba.mbx_wq) { 7072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7073 "0538 Slow-path MQ not allocated\n"); 7074 rc = -ENOMEM; 7075 goto out_destroy_fcp_cq; 7076 } 7077 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7078 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7079 if (rc) { 7080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7081 "0539 Failed setup of slow-path MQ: " 7082 "rc = 0x%x\n", rc); 7083 goto out_destroy_fcp_cq; 7084 } 7085 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7086 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7087 phba->sli4_hba.mbx_wq->queue_id, 7088 phba->sli4_hba.mbx_cq->queue_id); 7089 7090 /* Set up slow-path ELS Work Queue */ 7091 if (!phba->sli4_hba.els_wq) { 7092 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7093 "0536 Slow-path ELS WQ not allocated\n"); 7094 rc = -ENOMEM; 7095 goto out_destroy_mbx_wq; 7096 } 7097 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7098 phba->sli4_hba.els_cq, LPFC_ELS); 7099 if (rc) { 7100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7101 "0537 Failed setup of slow-path ELS WQ: " 7102 "rc = 0x%x\n", rc); 7103 goto out_destroy_mbx_wq; 7104 } 7105 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7106 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7107 phba->sli4_hba.els_wq->queue_id, 7108 phba->sli4_hba.els_cq->queue_id); 7109 7110 /* Set up fast-path FCP Work Queue */ 7111 if (!phba->sli4_hba.fcp_wq) { 7112 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7113 "3149 Fast-path FCP WQ array not " 7114 "allocated\n"); 7115 rc = -ENOMEM; 7116 goto out_destroy_els_wq; 7117 } 7118 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) { 7119 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7121 "0534 Fast-path FCP WQ (%d) not " 7122 "allocated\n", fcp_wqidx); 7123 rc = -ENOMEM; 7124 goto out_destroy_fcp_wq; 7125 } 7126 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7127 phba->sli4_hba.fcp_cq[fcp_cq_index], 7128 LPFC_FCP); 7129 if (rc) { 7130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7131 "0535 Failed setup of fast-path FCP " 7132 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7133 goto out_destroy_fcp_wq; 7134 } 7135 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7136 "2591 FCP WQ setup: wq[%d]-id=%d, " 7137 "parent cq[%d]-id=%d\n", 7138 fcp_wqidx, 7139 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7140 fcp_cq_index, 7141 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id); 7142 /* Round robin FCP Work Queue's Completion Queue assignment */ 7143 if (phba->cfg_fcp_eq_count) 7144 fcp_cq_index = ((fcp_cq_index + 1) % 7145 phba->cfg_fcp_eq_count); 7146 } 7147 7148 /* 7149 * Create Receive Queue (RQ) 7150 */ 7151 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7153 "0540 Receive Queue not allocated\n"); 7154 rc = -ENOMEM; 7155 goto out_destroy_fcp_wq; 7156 } 7157 7158 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7159 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7160 7161 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7162 phba->sli4_hba.els_cq, LPFC_USOL); 7163 if (rc) { 7164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7165 "0541 Failed setup of Receive Queue: " 7166 "rc = 0x%x\n", rc); 7167 goto out_destroy_fcp_wq; 7168 } 7169 7170 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7171 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7172 "parent cq-id=%d\n", 7173 phba->sli4_hba.hdr_rq->queue_id, 7174 phba->sli4_hba.dat_rq->queue_id, 7175 phba->sli4_hba.els_cq->queue_id); 7176 return 0; 7177 7178 out_destroy_fcp_wq: 7179 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7180 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7181 out_destroy_els_wq: 7182 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7183 out_destroy_mbx_wq: 7184 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7185 out_destroy_fcp_cq: 7186 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7187 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7188 out_destroy_els_cq: 7189 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7190 out_destroy_mbx_cq: 7191 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7192 out_destroy_fp_eq: 7193 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7194 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]); 7195 out_destroy_sp_eq: 7196 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7197 out_error: 7198 return rc; 7199 } 7200 7201 /** 7202 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7203 * @phba: pointer to lpfc hba data structure. 7204 * 7205 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7206 * operation. 7207 * 7208 * Return codes 7209 * 0 - successful 7210 * -ENOMEM - No available memory 7211 * -EIO - The mailbox failed to complete successfully. 7212 **/ 7213 void 7214 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7215 { 7216 int fcp_qidx; 7217 7218 /* Unset mailbox command work queue */ 7219 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7220 /* Unset ELS work queue */ 7221 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7222 /* Unset unsolicited receive queue */ 7223 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7224 /* Unset FCP work queue */ 7225 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) 7226 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7227 /* Unset mailbox command complete queue */ 7228 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7229 /* Unset ELS complete queue */ 7230 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7231 /* Unset FCP response complete queue */ 7232 if (phba->sli4_hba.fcp_cq) { 7233 fcp_qidx = 0; 7234 do { 7235 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7236 } while (++fcp_qidx < phba->cfg_fcp_eq_count); 7237 } 7238 /* Unset fast-path event queue */ 7239 if (phba->sli4_hba.fp_eq) { 7240 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; 7241 fcp_qidx++) 7242 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]); 7243 } 7244 /* Unset slow-path event queue */ 7245 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq); 7246 } 7247 7248 /** 7249 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7250 * @phba: pointer to lpfc hba data structure. 7251 * 7252 * This routine is invoked to allocate and set up a pool of completion queue 7253 * events. The body of the completion queue event is a completion queue entry 7254 * CQE. For now, this pool is used for the interrupt service routine to queue 7255 * the following HBA completion queue events for the worker thread to process: 7256 * - Mailbox asynchronous events 7257 * - Receive queue completion unsolicited events 7258 * Later, this can be used for all the slow-path events. 7259 * 7260 * Return codes 7261 * 0 - successful 7262 * -ENOMEM - No available memory 7263 **/ 7264 static int 7265 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7266 { 7267 struct lpfc_cq_event *cq_event; 7268 int i; 7269 7270 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7271 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7272 if (!cq_event) 7273 goto out_pool_create_fail; 7274 list_add_tail(&cq_event->list, 7275 &phba->sli4_hba.sp_cqe_event_pool); 7276 } 7277 return 0; 7278 7279 out_pool_create_fail: 7280 lpfc_sli4_cq_event_pool_destroy(phba); 7281 return -ENOMEM; 7282 } 7283 7284 /** 7285 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7286 * @phba: pointer to lpfc hba data structure. 7287 * 7288 * This routine is invoked to free the pool of completion queue events at 7289 * driver unload time. Note that, it is the responsibility of the driver 7290 * cleanup routine to free all the outstanding completion-queue events 7291 * allocated from this pool back into the pool before invoking this routine 7292 * to destroy the pool. 7293 **/ 7294 static void 7295 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7296 { 7297 struct lpfc_cq_event *cq_event, *next_cq_event; 7298 7299 list_for_each_entry_safe(cq_event, next_cq_event, 7300 &phba->sli4_hba.sp_cqe_event_pool, list) { 7301 list_del(&cq_event->list); 7302 kfree(cq_event); 7303 } 7304 } 7305 7306 /** 7307 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7308 * @phba: pointer to lpfc hba data structure. 7309 * 7310 * This routine is the lock free version of the API invoked to allocate a 7311 * completion-queue event from the free pool. 7312 * 7313 * Return: Pointer to the newly allocated completion-queue event if successful 7314 * NULL otherwise. 7315 **/ 7316 struct lpfc_cq_event * 7317 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7318 { 7319 struct lpfc_cq_event *cq_event = NULL; 7320 7321 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7322 struct lpfc_cq_event, list); 7323 return cq_event; 7324 } 7325 7326 /** 7327 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7328 * @phba: pointer to lpfc hba data structure. 7329 * 7330 * This routine is the lock version of the API invoked to allocate a 7331 * completion-queue event from the free pool. 7332 * 7333 * Return: Pointer to the newly allocated completion-queue event if successful 7334 * NULL otherwise. 7335 **/ 7336 struct lpfc_cq_event * 7337 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7338 { 7339 struct lpfc_cq_event *cq_event; 7340 unsigned long iflags; 7341 7342 spin_lock_irqsave(&phba->hbalock, iflags); 7343 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7344 spin_unlock_irqrestore(&phba->hbalock, iflags); 7345 return cq_event; 7346 } 7347 7348 /** 7349 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7350 * @phba: pointer to lpfc hba data structure. 7351 * @cq_event: pointer to the completion queue event to be freed. 7352 * 7353 * This routine is the lock free version of the API invoked to release a 7354 * completion-queue event back into the free pool. 7355 **/ 7356 void 7357 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7358 struct lpfc_cq_event *cq_event) 7359 { 7360 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7361 } 7362 7363 /** 7364 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7365 * @phba: pointer to lpfc hba data structure. 7366 * @cq_event: pointer to the completion queue event to be freed. 7367 * 7368 * This routine is the lock version of the API invoked to release a 7369 * completion-queue event back into the free pool. 7370 **/ 7371 void 7372 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7373 struct lpfc_cq_event *cq_event) 7374 { 7375 unsigned long iflags; 7376 spin_lock_irqsave(&phba->hbalock, iflags); 7377 __lpfc_sli4_cq_event_release(phba, cq_event); 7378 spin_unlock_irqrestore(&phba->hbalock, iflags); 7379 } 7380 7381 /** 7382 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7383 * @phba: pointer to lpfc hba data structure. 7384 * 7385 * This routine is to free all the pending completion-queue events to the 7386 * back into the free pool for device reset. 7387 **/ 7388 static void 7389 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7390 { 7391 LIST_HEAD(cqelist); 7392 struct lpfc_cq_event *cqe; 7393 unsigned long iflags; 7394 7395 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7396 spin_lock_irqsave(&phba->hbalock, iflags); 7397 /* Pending FCP XRI abort events */ 7398 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7399 &cqelist); 7400 /* Pending ELS XRI abort events */ 7401 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7402 &cqelist); 7403 /* Pending asynnc events */ 7404 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7405 &cqelist); 7406 spin_unlock_irqrestore(&phba->hbalock, iflags); 7407 7408 while (!list_empty(&cqelist)) { 7409 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7410 lpfc_sli4_cq_event_release(phba, cqe); 7411 } 7412 } 7413 7414 /** 7415 * lpfc_pci_function_reset - Reset pci function. 7416 * @phba: pointer to lpfc hba data structure. 7417 * 7418 * This routine is invoked to request a PCI function reset. It will destroys 7419 * all resources assigned to the PCI function which originates this request. 7420 * 7421 * Return codes 7422 * 0 - successful 7423 * -ENOMEM - No available memory 7424 * -EIO - The mailbox failed to complete successfully. 7425 **/ 7426 int 7427 lpfc_pci_function_reset(struct lpfc_hba *phba) 7428 { 7429 LPFC_MBOXQ_t *mboxq; 7430 uint32_t rc = 0, if_type; 7431 uint32_t shdr_status, shdr_add_status; 7432 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7433 union lpfc_sli4_cfg_shdr *shdr; 7434 struct lpfc_register reg_data; 7435 uint16_t devid; 7436 7437 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7438 switch (if_type) { 7439 case LPFC_SLI_INTF_IF_TYPE_0: 7440 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7441 GFP_KERNEL); 7442 if (!mboxq) { 7443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7444 "0494 Unable to allocate memory for " 7445 "issuing SLI_FUNCTION_RESET mailbox " 7446 "command\n"); 7447 return -ENOMEM; 7448 } 7449 7450 /* Setup PCI function reset mailbox-ioctl command */ 7451 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7452 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7453 LPFC_SLI4_MBX_EMBED); 7454 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7455 shdr = (union lpfc_sli4_cfg_shdr *) 7456 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7457 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7458 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7459 &shdr->response); 7460 if (rc != MBX_TIMEOUT) 7461 mempool_free(mboxq, phba->mbox_mem_pool); 7462 if (shdr_status || shdr_add_status || rc) { 7463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7464 "0495 SLI_FUNCTION_RESET mailbox " 7465 "failed with status x%x add_status x%x," 7466 " mbx status x%x\n", 7467 shdr_status, shdr_add_status, rc); 7468 rc = -ENXIO; 7469 } 7470 break; 7471 case LPFC_SLI_INTF_IF_TYPE_2: 7472 for (num_resets = 0; 7473 num_resets < MAX_IF_TYPE_2_RESETS; 7474 num_resets++) { 7475 reg_data.word0 = 0; 7476 bf_set(lpfc_sliport_ctrl_end, ®_data, 7477 LPFC_SLIPORT_LITTLE_ENDIAN); 7478 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7479 LPFC_SLIPORT_INIT_PORT); 7480 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7481 CTRLregaddr); 7482 /* flush */ 7483 pci_read_config_word(phba->pcidev, 7484 PCI_DEVICE_ID, &devid); 7485 /* 7486 * Poll the Port Status Register and wait for RDY for 7487 * up to 10 seconds. If the port doesn't respond, treat 7488 * it as an error. If the port responds with RN, start 7489 * the loop again. 7490 */ 7491 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7492 msleep(10); 7493 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7494 STATUSregaddr, ®_data.word0)) { 7495 rc = -ENODEV; 7496 goto out; 7497 } 7498 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7499 reset_again++; 7500 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7501 break; 7502 } 7503 7504 /* 7505 * If the port responds to the init request with 7506 * reset needed, delay for a bit and restart the loop. 7507 */ 7508 if (reset_again && (rdy_chk < 1000)) { 7509 msleep(10); 7510 reset_again = 0; 7511 continue; 7512 } 7513 7514 /* Detect any port errors. */ 7515 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7516 (rdy_chk >= 1000)) { 7517 phba->work_status[0] = readl( 7518 phba->sli4_hba.u.if_type2.ERR1regaddr); 7519 phba->work_status[1] = readl( 7520 phba->sli4_hba.u.if_type2.ERR2regaddr); 7521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7522 "2890 Port error detected during port " 7523 "reset(%d): wait_tmo:%d ms, " 7524 "port status reg 0x%x, " 7525 "error 1=0x%x, error 2=0x%x\n", 7526 num_resets, rdy_chk*10, 7527 reg_data.word0, 7528 phba->work_status[0], 7529 phba->work_status[1]); 7530 rc = -ENODEV; 7531 } 7532 7533 /* 7534 * Terminate the outer loop provided the Port indicated 7535 * ready within 10 seconds. 7536 */ 7537 if (rdy_chk < 1000) 7538 break; 7539 } 7540 /* delay driver action following IF_TYPE_2 function reset */ 7541 msleep(100); 7542 break; 7543 case LPFC_SLI_INTF_IF_TYPE_1: 7544 default: 7545 break; 7546 } 7547 7548 out: 7549 /* Catch the not-ready port failure after a port reset. */ 7550 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7551 rc = -ENODEV; 7552 7553 return rc; 7554 } 7555 7556 /** 7557 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7558 * @phba: pointer to lpfc hba data structure. 7559 * @cnt: number of nop mailbox commands to send. 7560 * 7561 * This routine is invoked to send a number @cnt of NOP mailbox command and 7562 * wait for each command to complete. 7563 * 7564 * Return: the number of NOP mailbox command completed. 7565 **/ 7566 static int 7567 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7568 { 7569 LPFC_MBOXQ_t *mboxq; 7570 int length, cmdsent; 7571 uint32_t mbox_tmo; 7572 uint32_t rc = 0; 7573 uint32_t shdr_status, shdr_add_status; 7574 union lpfc_sli4_cfg_shdr *shdr; 7575 7576 if (cnt == 0) { 7577 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7578 "2518 Requested to send 0 NOP mailbox cmd\n"); 7579 return cnt; 7580 } 7581 7582 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7583 if (!mboxq) { 7584 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7585 "2519 Unable to allocate memory for issuing " 7586 "NOP mailbox command\n"); 7587 return 0; 7588 } 7589 7590 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7591 length = (sizeof(struct lpfc_mbx_nop) - 7592 sizeof(struct lpfc_sli4_cfg_mhdr)); 7593 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7594 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED); 7595 7596 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7597 if (!phba->sli4_hba.intr_enable) 7598 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7599 else { 7600 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7601 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7602 } 7603 if (rc == MBX_TIMEOUT) 7604 break; 7605 /* Check return status */ 7606 shdr = (union lpfc_sli4_cfg_shdr *) 7607 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7608 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7609 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7610 &shdr->response); 7611 if (shdr_status || shdr_add_status || rc) { 7612 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7613 "2520 NOP mailbox command failed " 7614 "status x%x add_status x%x mbx " 7615 "status x%x\n", shdr_status, 7616 shdr_add_status, rc); 7617 break; 7618 } 7619 } 7620 7621 if (rc != MBX_TIMEOUT) 7622 mempool_free(mboxq, phba->mbox_mem_pool); 7623 7624 return cmdsent; 7625 } 7626 7627 /** 7628 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7629 * @phba: pointer to lpfc hba data structure. 7630 * 7631 * This routine is invoked to set up the PCI device memory space for device 7632 * with SLI-4 interface spec. 7633 * 7634 * Return codes 7635 * 0 - successful 7636 * other values - error 7637 **/ 7638 static int 7639 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7640 { 7641 struct pci_dev *pdev; 7642 unsigned long bar0map_len, bar1map_len, bar2map_len; 7643 int error = -ENODEV; 7644 uint32_t if_type; 7645 7646 /* Obtain PCI device reference */ 7647 if (!phba->pcidev) 7648 return error; 7649 else 7650 pdev = phba->pcidev; 7651 7652 /* Set the device DMA mask size */ 7653 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7654 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7655 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7656 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7657 return error; 7658 } 7659 } 7660 7661 /* 7662 * The BARs and register set definitions and offset locations are 7663 * dependent on the if_type. 7664 */ 7665 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7666 &phba->sli4_hba.sli_intf.word0)) { 7667 return error; 7668 } 7669 7670 /* There is no SLI3 failback for SLI4 devices. */ 7671 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7672 LPFC_SLI_INTF_VALID) { 7673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7674 "2894 SLI_INTF reg contents invalid " 7675 "sli_intf reg 0x%x\n", 7676 phba->sli4_hba.sli_intf.word0); 7677 return error; 7678 } 7679 7680 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7681 /* 7682 * Get the bus address of SLI4 device Bar regions and the 7683 * number of bytes required by each mapping. The mapping of the 7684 * particular PCI BARs regions is dependent on the type of 7685 * SLI4 device. 7686 */ 7687 if (pci_resource_start(pdev, 0)) { 7688 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7689 bar0map_len = pci_resource_len(pdev, 0); 7690 7691 /* 7692 * Map SLI4 PCI Config Space Register base to a kernel virtual 7693 * addr 7694 */ 7695 phba->sli4_hba.conf_regs_memmap_p = 7696 ioremap(phba->pci_bar0_map, bar0map_len); 7697 if (!phba->sli4_hba.conf_regs_memmap_p) { 7698 dev_printk(KERN_ERR, &pdev->dev, 7699 "ioremap failed for SLI4 PCI config " 7700 "registers.\n"); 7701 goto out; 7702 } 7703 /* Set up BAR0 PCI config space register memory map */ 7704 lpfc_sli4_bar0_register_memmap(phba, if_type); 7705 } else { 7706 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7707 bar0map_len = pci_resource_len(pdev, 1); 7708 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7709 dev_printk(KERN_ERR, &pdev->dev, 7710 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7711 goto out; 7712 } 7713 phba->sli4_hba.conf_regs_memmap_p = 7714 ioremap(phba->pci_bar0_map, bar0map_len); 7715 if (!phba->sli4_hba.conf_regs_memmap_p) { 7716 dev_printk(KERN_ERR, &pdev->dev, 7717 "ioremap failed for SLI4 PCI config " 7718 "registers.\n"); 7719 goto out; 7720 } 7721 lpfc_sli4_bar0_register_memmap(phba, if_type); 7722 } 7723 7724 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7725 (pci_resource_start(pdev, 2))) { 7726 /* 7727 * Map SLI4 if type 0 HBA Control Register base to a kernel 7728 * virtual address and setup the registers. 7729 */ 7730 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7731 bar1map_len = pci_resource_len(pdev, 2); 7732 phba->sli4_hba.ctrl_regs_memmap_p = 7733 ioremap(phba->pci_bar1_map, bar1map_len); 7734 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7735 dev_printk(KERN_ERR, &pdev->dev, 7736 "ioremap failed for SLI4 HBA control registers.\n"); 7737 goto out_iounmap_conf; 7738 } 7739 lpfc_sli4_bar1_register_memmap(phba); 7740 } 7741 7742 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7743 (pci_resource_start(pdev, 4))) { 7744 /* 7745 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7746 * virtual address and setup the registers. 7747 */ 7748 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7749 bar2map_len = pci_resource_len(pdev, 4); 7750 phba->sli4_hba.drbl_regs_memmap_p = 7751 ioremap(phba->pci_bar2_map, bar2map_len); 7752 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7753 dev_printk(KERN_ERR, &pdev->dev, 7754 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7755 goto out_iounmap_ctrl; 7756 } 7757 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7758 if (error) 7759 goto out_iounmap_all; 7760 } 7761 7762 return 0; 7763 7764 out_iounmap_all: 7765 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7766 out_iounmap_ctrl: 7767 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7768 out_iounmap_conf: 7769 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7770 out: 7771 return error; 7772 } 7773 7774 /** 7775 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7776 * @phba: pointer to lpfc hba data structure. 7777 * 7778 * This routine is invoked to unset the PCI device memory space for device 7779 * with SLI-4 interface spec. 7780 **/ 7781 static void 7782 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7783 { 7784 uint32_t if_type; 7785 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7786 7787 switch (if_type) { 7788 case LPFC_SLI_INTF_IF_TYPE_0: 7789 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7790 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7791 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7792 break; 7793 case LPFC_SLI_INTF_IF_TYPE_2: 7794 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7795 break; 7796 case LPFC_SLI_INTF_IF_TYPE_1: 7797 default: 7798 dev_printk(KERN_ERR, &phba->pcidev->dev, 7799 "FATAL - unsupported SLI4 interface type - %d\n", 7800 if_type); 7801 break; 7802 } 7803 } 7804 7805 /** 7806 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7807 * @phba: pointer to lpfc hba data structure. 7808 * 7809 * This routine is invoked to enable the MSI-X interrupt vectors to device 7810 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7811 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7812 * invoked, enables either all or nothing, depending on the current 7813 * availability of PCI vector resources. The device driver is responsible 7814 * for calling the individual request_irq() to register each MSI-X vector 7815 * with a interrupt handler, which is done in this function. Note that 7816 * later when device is unloading, the driver should always call free_irq() 7817 * on all MSI-X vectors it has done request_irq() on before calling 7818 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7819 * will be left with MSI-X enabled and leaks its vectors. 7820 * 7821 * Return codes 7822 * 0 - successful 7823 * other values - error 7824 **/ 7825 static int 7826 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7827 { 7828 int rc, i; 7829 LPFC_MBOXQ_t *pmb; 7830 7831 /* Set up MSI-X multi-message vectors */ 7832 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7833 phba->msix_entries[i].entry = i; 7834 7835 /* Configure MSI-X capability structure */ 7836 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7837 ARRAY_SIZE(phba->msix_entries)); 7838 if (rc) { 7839 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7840 "0420 PCI enable MSI-X failed (%d)\n", rc); 7841 goto msi_fail_out; 7842 } 7843 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7844 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7845 "0477 MSI-X entry[%d]: vector=x%x " 7846 "message=%d\n", i, 7847 phba->msix_entries[i].vector, 7848 phba->msix_entries[i].entry); 7849 /* 7850 * Assign MSI-X vectors to interrupt handlers 7851 */ 7852 7853 /* vector-0 is associated to slow-path handler */ 7854 rc = request_irq(phba->msix_entries[0].vector, 7855 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7856 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7857 if (rc) { 7858 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7859 "0421 MSI-X slow-path request_irq failed " 7860 "(%d)\n", rc); 7861 goto msi_fail_out; 7862 } 7863 7864 /* vector-1 is associated to fast-path handler */ 7865 rc = request_irq(phba->msix_entries[1].vector, 7866 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7867 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7868 7869 if (rc) { 7870 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7871 "0429 MSI-X fast-path request_irq failed " 7872 "(%d)\n", rc); 7873 goto irq_fail_out; 7874 } 7875 7876 /* 7877 * Configure HBA MSI-X attention conditions to messages 7878 */ 7879 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7880 7881 if (!pmb) { 7882 rc = -ENOMEM; 7883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7884 "0474 Unable to allocate memory for issuing " 7885 "MBOX_CONFIG_MSI command\n"); 7886 goto mem_fail_out; 7887 } 7888 rc = lpfc_config_msi(phba, pmb); 7889 if (rc) 7890 goto mbx_fail_out; 7891 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7892 if (rc != MBX_SUCCESS) { 7893 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 7894 "0351 Config MSI mailbox command failed, " 7895 "mbxCmd x%x, mbxStatus x%x\n", 7896 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 7897 goto mbx_fail_out; 7898 } 7899 7900 /* Free memory allocated for mailbox command */ 7901 mempool_free(pmb, phba->mbox_mem_pool); 7902 return rc; 7903 7904 mbx_fail_out: 7905 /* Free memory allocated for mailbox command */ 7906 mempool_free(pmb, phba->mbox_mem_pool); 7907 7908 mem_fail_out: 7909 /* free the irq already requested */ 7910 free_irq(phba->msix_entries[1].vector, phba); 7911 7912 irq_fail_out: 7913 /* free the irq already requested */ 7914 free_irq(phba->msix_entries[0].vector, phba); 7915 7916 msi_fail_out: 7917 /* Unconfigure MSI-X capability structure */ 7918 pci_disable_msix(phba->pcidev); 7919 return rc; 7920 } 7921 7922 /** 7923 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 7924 * @phba: pointer to lpfc hba data structure. 7925 * 7926 * This routine is invoked to release the MSI-X vectors and then disable the 7927 * MSI-X interrupt mode to device with SLI-3 interface spec. 7928 **/ 7929 static void 7930 lpfc_sli_disable_msix(struct lpfc_hba *phba) 7931 { 7932 int i; 7933 7934 /* Free up MSI-X multi-message vectors */ 7935 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7936 free_irq(phba->msix_entries[i].vector, phba); 7937 /* Disable MSI-X */ 7938 pci_disable_msix(phba->pcidev); 7939 7940 return; 7941 } 7942 7943 /** 7944 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 7945 * @phba: pointer to lpfc hba data structure. 7946 * 7947 * This routine is invoked to enable the MSI interrupt mode to device with 7948 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 7949 * enable the MSI vector. The device driver is responsible for calling the 7950 * request_irq() to register MSI vector with a interrupt the handler, which 7951 * is done in this function. 7952 * 7953 * Return codes 7954 * 0 - successful 7955 * other values - error 7956 */ 7957 static int 7958 lpfc_sli_enable_msi(struct lpfc_hba *phba) 7959 { 7960 int rc; 7961 7962 rc = pci_enable_msi(phba->pcidev); 7963 if (!rc) 7964 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7965 "0462 PCI enable MSI mode success.\n"); 7966 else { 7967 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7968 "0471 PCI enable MSI mode failed (%d)\n", rc); 7969 return rc; 7970 } 7971 7972 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 7973 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 7974 if (rc) { 7975 pci_disable_msi(phba->pcidev); 7976 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7977 "0478 MSI request_irq failed (%d)\n", rc); 7978 } 7979 return rc; 7980 } 7981 7982 /** 7983 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 7984 * @phba: pointer to lpfc hba data structure. 7985 * 7986 * This routine is invoked to disable the MSI interrupt mode to device with 7987 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 7988 * done request_irq() on before calling pci_disable_msi(). Failure to do so 7989 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 7990 * its vector. 7991 */ 7992 static void 7993 lpfc_sli_disable_msi(struct lpfc_hba *phba) 7994 { 7995 free_irq(phba->pcidev->irq, phba); 7996 pci_disable_msi(phba->pcidev); 7997 return; 7998 } 7999 8000 /** 8001 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8002 * @phba: pointer to lpfc hba data structure. 8003 * 8004 * This routine is invoked to enable device interrupt and associate driver's 8005 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8006 * spec. Depends on the interrupt mode configured to the driver, the driver 8007 * will try to fallback from the configured interrupt mode to an interrupt 8008 * mode which is supported by the platform, kernel, and device in the order 8009 * of: 8010 * MSI-X -> MSI -> IRQ. 8011 * 8012 * Return codes 8013 * 0 - successful 8014 * other values - error 8015 **/ 8016 static uint32_t 8017 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8018 { 8019 uint32_t intr_mode = LPFC_INTR_ERROR; 8020 int retval; 8021 8022 if (cfg_mode == 2) { 8023 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8024 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8025 if (!retval) { 8026 /* Now, try to enable MSI-X interrupt mode */ 8027 retval = lpfc_sli_enable_msix(phba); 8028 if (!retval) { 8029 /* Indicate initialization to MSI-X mode */ 8030 phba->intr_type = MSIX; 8031 intr_mode = 2; 8032 } 8033 } 8034 } 8035 8036 /* Fallback to MSI if MSI-X initialization failed */ 8037 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8038 retval = lpfc_sli_enable_msi(phba); 8039 if (!retval) { 8040 /* Indicate initialization to MSI mode */ 8041 phba->intr_type = MSI; 8042 intr_mode = 1; 8043 } 8044 } 8045 8046 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8047 if (phba->intr_type == NONE) { 8048 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8049 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8050 if (!retval) { 8051 /* Indicate initialization to INTx mode */ 8052 phba->intr_type = INTx; 8053 intr_mode = 0; 8054 } 8055 } 8056 return intr_mode; 8057 } 8058 8059 /** 8060 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8061 * @phba: pointer to lpfc hba data structure. 8062 * 8063 * This routine is invoked to disable device interrupt and disassociate the 8064 * driver's interrupt handler(s) from interrupt vector(s) to device with 8065 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8066 * release the interrupt vector(s) for the message signaled interrupt. 8067 **/ 8068 static void 8069 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8070 { 8071 /* Disable the currently initialized interrupt mode */ 8072 if (phba->intr_type == MSIX) 8073 lpfc_sli_disable_msix(phba); 8074 else if (phba->intr_type == MSI) 8075 lpfc_sli_disable_msi(phba); 8076 else if (phba->intr_type == INTx) 8077 free_irq(phba->pcidev->irq, phba); 8078 8079 /* Reset interrupt management states */ 8080 phba->intr_type = NONE; 8081 phba->sli.slistat.sli_intr = 0; 8082 8083 return; 8084 } 8085 8086 /** 8087 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8088 * @phba: pointer to lpfc hba data structure. 8089 * 8090 * This routine is invoked to enable the MSI-X interrupt vectors to device 8091 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8092 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8093 * enables either all or nothing, depending on the current availability of 8094 * PCI vector resources. The device driver is responsible for calling the 8095 * individual request_irq() to register each MSI-X vector with a interrupt 8096 * handler, which is done in this function. Note that later when device is 8097 * unloading, the driver should always call free_irq() on all MSI-X vectors 8098 * it has done request_irq() on before calling pci_disable_msix(). Failure 8099 * to do so results in a BUG_ON() and a device will be left with MSI-X 8100 * enabled and leaks its vectors. 8101 * 8102 * Return codes 8103 * 0 - successful 8104 * other values - error 8105 **/ 8106 static int 8107 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8108 { 8109 int vectors, rc, index; 8110 8111 /* Set up MSI-X multi-message vectors */ 8112 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++) 8113 phba->sli4_hba.msix_entries[index].entry = index; 8114 8115 /* Configure MSI-X capability structure */ 8116 vectors = phba->sli4_hba.cfg_eqn; 8117 enable_msix_vectors: 8118 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8119 vectors); 8120 if (rc > 1) { 8121 vectors = rc; 8122 goto enable_msix_vectors; 8123 } else if (rc) { 8124 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8125 "0484 PCI enable MSI-X failed (%d)\n", rc); 8126 goto msi_fail_out; 8127 } 8128 8129 /* Log MSI-X vector assignment */ 8130 for (index = 0; index < vectors; index++) 8131 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8132 "0489 MSI-X entry[%d]: vector=x%x " 8133 "message=%d\n", index, 8134 phba->sli4_hba.msix_entries[index].vector, 8135 phba->sli4_hba.msix_entries[index].entry); 8136 /* 8137 * Assign MSI-X vectors to interrupt handlers 8138 */ 8139 if (vectors > 1) 8140 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 8141 &lpfc_sli4_sp_intr_handler, IRQF_SHARED, 8142 LPFC_SP_DRIVER_HANDLER_NAME, phba); 8143 else 8144 /* All Interrupts need to be handled by one EQ */ 8145 rc = request_irq(phba->sli4_hba.msix_entries[0].vector, 8146 &lpfc_sli4_intr_handler, IRQF_SHARED, 8147 LPFC_DRIVER_NAME, phba); 8148 if (rc) { 8149 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8150 "0485 MSI-X slow-path request_irq failed " 8151 "(%d)\n", rc); 8152 goto msi_fail_out; 8153 } 8154 8155 /* The rest of the vector(s) are associated to fast-path handler(s) */ 8156 for (index = 1; index < vectors; index++) { 8157 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1; 8158 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba; 8159 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8160 &lpfc_sli4_fp_intr_handler, IRQF_SHARED, 8161 LPFC_FP_DRIVER_HANDLER_NAME, 8162 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8163 if (rc) { 8164 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8165 "0486 MSI-X fast-path (%d) " 8166 "request_irq failed (%d)\n", index, rc); 8167 goto cfg_fail_out; 8168 } 8169 } 8170 phba->sli4_hba.msix_vec_nr = vectors; 8171 8172 return rc; 8173 8174 cfg_fail_out: 8175 /* free the irq already requested */ 8176 for (--index; index >= 1; index--) 8177 free_irq(phba->sli4_hba.msix_entries[index - 1].vector, 8178 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8179 8180 /* free the irq already requested */ 8181 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 8182 8183 msi_fail_out: 8184 /* Unconfigure MSI-X capability structure */ 8185 pci_disable_msix(phba->pcidev); 8186 return rc; 8187 } 8188 8189 /** 8190 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8191 * @phba: pointer to lpfc hba data structure. 8192 * 8193 * This routine is invoked to release the MSI-X vectors and then disable the 8194 * MSI-X interrupt mode to device with SLI-4 interface spec. 8195 **/ 8196 static void 8197 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8198 { 8199 int index; 8200 8201 /* Free up MSI-X multi-message vectors */ 8202 free_irq(phba->sli4_hba.msix_entries[0].vector, phba); 8203 8204 for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++) 8205 free_irq(phba->sli4_hba.msix_entries[index].vector, 8206 &phba->sli4_hba.fcp_eq_hdl[index - 1]); 8207 8208 /* Disable MSI-X */ 8209 pci_disable_msix(phba->pcidev); 8210 8211 return; 8212 } 8213 8214 /** 8215 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8216 * @phba: pointer to lpfc hba data structure. 8217 * 8218 * This routine is invoked to enable the MSI interrupt mode to device with 8219 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8220 * to enable the MSI vector. The device driver is responsible for calling 8221 * the request_irq() to register MSI vector with a interrupt the handler, 8222 * which is done in this function. 8223 * 8224 * Return codes 8225 * 0 - successful 8226 * other values - error 8227 **/ 8228 static int 8229 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8230 { 8231 int rc, index; 8232 8233 rc = pci_enable_msi(phba->pcidev); 8234 if (!rc) 8235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8236 "0487 PCI enable MSI mode success.\n"); 8237 else { 8238 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8239 "0488 PCI enable MSI mode failed (%d)\n", rc); 8240 return rc; 8241 } 8242 8243 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8244 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8245 if (rc) { 8246 pci_disable_msi(phba->pcidev); 8247 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8248 "0490 MSI request_irq failed (%d)\n", rc); 8249 return rc; 8250 } 8251 8252 for (index = 0; index < phba->cfg_fcp_eq_count; index++) { 8253 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8254 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8255 } 8256 8257 return 0; 8258 } 8259 8260 /** 8261 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8262 * @phba: pointer to lpfc hba data structure. 8263 * 8264 * This routine is invoked to disable the MSI interrupt mode to device with 8265 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8266 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8267 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8268 * its vector. 8269 **/ 8270 static void 8271 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8272 { 8273 free_irq(phba->pcidev->irq, phba); 8274 pci_disable_msi(phba->pcidev); 8275 return; 8276 } 8277 8278 /** 8279 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8280 * @phba: pointer to lpfc hba data structure. 8281 * 8282 * This routine is invoked to enable device interrupt and associate driver's 8283 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8284 * interface spec. Depends on the interrupt mode configured to the driver, 8285 * the driver will try to fallback from the configured interrupt mode to an 8286 * interrupt mode which is supported by the platform, kernel, and device in 8287 * the order of: 8288 * MSI-X -> MSI -> IRQ. 8289 * 8290 * Return codes 8291 * 0 - successful 8292 * other values - error 8293 **/ 8294 static uint32_t 8295 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8296 { 8297 uint32_t intr_mode = LPFC_INTR_ERROR; 8298 int retval, index; 8299 8300 if (cfg_mode == 2) { 8301 /* Preparation before conf_msi mbox cmd */ 8302 retval = 0; 8303 if (!retval) { 8304 /* Now, try to enable MSI-X interrupt mode */ 8305 retval = lpfc_sli4_enable_msix(phba); 8306 if (!retval) { 8307 /* Indicate initialization to MSI-X mode */ 8308 phba->intr_type = MSIX; 8309 intr_mode = 2; 8310 } 8311 } 8312 } 8313 8314 /* Fallback to MSI if MSI-X initialization failed */ 8315 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8316 retval = lpfc_sli4_enable_msi(phba); 8317 if (!retval) { 8318 /* Indicate initialization to MSI mode */ 8319 phba->intr_type = MSI; 8320 intr_mode = 1; 8321 } 8322 } 8323 8324 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8325 if (phba->intr_type == NONE) { 8326 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8327 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8328 if (!retval) { 8329 /* Indicate initialization to INTx mode */ 8330 phba->intr_type = INTx; 8331 intr_mode = 0; 8332 for (index = 0; index < phba->cfg_fcp_eq_count; 8333 index++) { 8334 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8335 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8336 } 8337 } 8338 } 8339 return intr_mode; 8340 } 8341 8342 /** 8343 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8344 * @phba: pointer to lpfc hba data structure. 8345 * 8346 * This routine is invoked to disable device interrupt and disassociate 8347 * the driver's interrupt handler(s) from interrupt vector(s) to device 8348 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8349 * will release the interrupt vector(s) for the message signaled interrupt. 8350 **/ 8351 static void 8352 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8353 { 8354 /* Disable the currently initialized interrupt mode */ 8355 if (phba->intr_type == MSIX) 8356 lpfc_sli4_disable_msix(phba); 8357 else if (phba->intr_type == MSI) 8358 lpfc_sli4_disable_msi(phba); 8359 else if (phba->intr_type == INTx) 8360 free_irq(phba->pcidev->irq, phba); 8361 8362 /* Reset interrupt management states */ 8363 phba->intr_type = NONE; 8364 phba->sli.slistat.sli_intr = 0; 8365 8366 return; 8367 } 8368 8369 /** 8370 * lpfc_unset_hba - Unset SLI3 hba device initialization 8371 * @phba: pointer to lpfc hba data structure. 8372 * 8373 * This routine is invoked to unset the HBA device initialization steps to 8374 * a device with SLI-3 interface spec. 8375 **/ 8376 static void 8377 lpfc_unset_hba(struct lpfc_hba *phba) 8378 { 8379 struct lpfc_vport *vport = phba->pport; 8380 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8381 8382 spin_lock_irq(shost->host_lock); 8383 vport->load_flag |= FC_UNLOADING; 8384 spin_unlock_irq(shost->host_lock); 8385 8386 kfree(phba->vpi_bmask); 8387 kfree(phba->vpi_ids); 8388 8389 lpfc_stop_hba_timers(phba); 8390 8391 phba->pport->work_port_events = 0; 8392 8393 lpfc_sli_hba_down(phba); 8394 8395 lpfc_sli_brdrestart(phba); 8396 8397 lpfc_sli_disable_intr(phba); 8398 8399 return; 8400 } 8401 8402 /** 8403 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8404 * @phba: pointer to lpfc hba data structure. 8405 * 8406 * This routine is invoked to unset the HBA device initialization steps to 8407 * a device with SLI-4 interface spec. 8408 **/ 8409 static void 8410 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8411 { 8412 struct lpfc_vport *vport = phba->pport; 8413 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8414 8415 spin_lock_irq(shost->host_lock); 8416 vport->load_flag |= FC_UNLOADING; 8417 spin_unlock_irq(shost->host_lock); 8418 8419 phba->pport->work_port_events = 0; 8420 8421 /* Stop the SLI4 device port */ 8422 lpfc_stop_port(phba); 8423 8424 lpfc_sli4_disable_intr(phba); 8425 8426 /* Reset SLI4 HBA FCoE function */ 8427 lpfc_pci_function_reset(phba); 8428 lpfc_sli4_queue_destroy(phba); 8429 8430 return; 8431 } 8432 8433 /** 8434 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8435 * @phba: Pointer to HBA context object. 8436 * 8437 * This function is called in the SLI4 code path to wait for completion 8438 * of device's XRIs exchange busy. It will check the XRI exchange busy 8439 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8440 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8441 * I/Os every 30 seconds, log error message, and wait forever. Only when 8442 * all XRI exchange busy complete, the driver unload shall proceed with 8443 * invoking the function reset ioctl mailbox command to the CNA and the 8444 * the rest of the driver unload resource release. 8445 **/ 8446 static void 8447 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8448 { 8449 int wait_time = 0; 8450 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8451 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8452 8453 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8454 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8455 if (!fcp_xri_cmpl) 8456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8457 "2877 FCP XRI exchange busy " 8458 "wait time: %d seconds.\n", 8459 wait_time/1000); 8460 if (!els_xri_cmpl) 8461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8462 "2878 ELS XRI exchange busy " 8463 "wait time: %d seconds.\n", 8464 wait_time/1000); 8465 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8466 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8467 } else { 8468 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8469 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8470 } 8471 fcp_xri_cmpl = 8472 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8473 els_xri_cmpl = 8474 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8475 } 8476 } 8477 8478 /** 8479 * lpfc_sli4_hba_unset - Unset the fcoe hba 8480 * @phba: Pointer to HBA context object. 8481 * 8482 * This function is called in the SLI4 code path to reset the HBA's FCoE 8483 * function. The caller is not required to hold any lock. This routine 8484 * issues PCI function reset mailbox command to reset the FCoE function. 8485 * At the end of the function, it calls lpfc_hba_down_post function to 8486 * free any pending commands. 8487 **/ 8488 static void 8489 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8490 { 8491 int wait_cnt = 0; 8492 LPFC_MBOXQ_t *mboxq; 8493 struct pci_dev *pdev = phba->pcidev; 8494 8495 lpfc_stop_hba_timers(phba); 8496 phba->sli4_hba.intr_enable = 0; 8497 8498 /* 8499 * Gracefully wait out the potential current outstanding asynchronous 8500 * mailbox command. 8501 */ 8502 8503 /* First, block any pending async mailbox command from posted */ 8504 spin_lock_irq(&phba->hbalock); 8505 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8506 spin_unlock_irq(&phba->hbalock); 8507 /* Now, trying to wait it out if we can */ 8508 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8509 msleep(10); 8510 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8511 break; 8512 } 8513 /* Forcefully release the outstanding mailbox command if timed out */ 8514 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8515 spin_lock_irq(&phba->hbalock); 8516 mboxq = phba->sli.mbox_active; 8517 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8518 __lpfc_mbox_cmpl_put(phba, mboxq); 8519 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8520 phba->sli.mbox_active = NULL; 8521 spin_unlock_irq(&phba->hbalock); 8522 } 8523 8524 /* Abort all iocbs associated with the hba */ 8525 lpfc_sli_hba_iocb_abort(phba); 8526 8527 /* Wait for completion of device XRI exchange busy */ 8528 lpfc_sli4_xri_exchange_busy_wait(phba); 8529 8530 /* Disable PCI subsystem interrupt */ 8531 lpfc_sli4_disable_intr(phba); 8532 8533 /* Disable SR-IOV if enabled */ 8534 if (phba->cfg_sriov_nr_virtfn) 8535 pci_disable_sriov(pdev); 8536 8537 /* Stop kthread signal shall trigger work_done one more time */ 8538 kthread_stop(phba->worker_thread); 8539 8540 /* Reset SLI4 HBA FCoE function */ 8541 lpfc_pci_function_reset(phba); 8542 lpfc_sli4_queue_destroy(phba); 8543 8544 /* Stop the SLI4 device port */ 8545 phba->pport->work_port_events = 0; 8546 } 8547 8548 /** 8549 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8550 * @phba: Pointer to HBA context object. 8551 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8552 * 8553 * This function is called in the SLI4 code path to read the port's 8554 * sli4 capabilities. 8555 * 8556 * This function may be be called from any context that can block-wait 8557 * for the completion. The expectation is that this routine is called 8558 * typically from probe_one or from the online routine. 8559 **/ 8560 int 8561 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8562 { 8563 int rc; 8564 struct lpfc_mqe *mqe; 8565 struct lpfc_pc_sli4_params *sli4_params; 8566 uint32_t mbox_tmo; 8567 8568 rc = 0; 8569 mqe = &mboxq->u.mqe; 8570 8571 /* Read the port's SLI4 Parameters port capabilities */ 8572 lpfc_pc_sli4_params(mboxq); 8573 if (!phba->sli4_hba.intr_enable) 8574 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8575 else { 8576 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8577 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8578 } 8579 8580 if (unlikely(rc)) 8581 return 1; 8582 8583 sli4_params = &phba->sli4_hba.pc_sli4_params; 8584 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8585 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8586 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8587 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8588 &mqe->un.sli4_params); 8589 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8590 &mqe->un.sli4_params); 8591 sli4_params->proto_types = mqe->un.sli4_params.word3; 8592 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8593 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8594 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8595 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8596 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8597 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8598 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8599 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8600 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8601 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8602 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8603 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8604 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8605 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8606 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8607 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8608 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8609 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8610 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8611 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8612 8613 /* Make sure that sge_supp_len can be handled by the driver */ 8614 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8615 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8616 8617 return rc; 8618 } 8619 8620 /** 8621 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8622 * @phba: Pointer to HBA context object. 8623 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8624 * 8625 * This function is called in the SLI4 code path to read the port's 8626 * sli4 capabilities. 8627 * 8628 * This function may be be called from any context that can block-wait 8629 * for the completion. The expectation is that this routine is called 8630 * typically from probe_one or from the online routine. 8631 **/ 8632 int 8633 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8634 { 8635 int rc; 8636 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8637 struct lpfc_pc_sli4_params *sli4_params; 8638 uint32_t mbox_tmo; 8639 int length; 8640 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8641 8642 /* 8643 * By default, the driver assumes the SLI4 port requires RPI 8644 * header postings. The SLI4_PARAM response will correct this 8645 * assumption. 8646 */ 8647 phba->sli4_hba.rpi_hdrs_in_use = 1; 8648 8649 /* Read the port's SLI4 Config Parameters */ 8650 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8651 sizeof(struct lpfc_sli4_cfg_mhdr)); 8652 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8653 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8654 length, LPFC_SLI4_MBX_EMBED); 8655 if (!phba->sli4_hba.intr_enable) 8656 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8657 else { 8658 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8659 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8660 } 8661 if (unlikely(rc)) 8662 return rc; 8663 sli4_params = &phba->sli4_hba.pc_sli4_params; 8664 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8665 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8666 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8667 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8668 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8669 mbx_sli4_parameters); 8670 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8671 mbx_sli4_parameters); 8672 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8673 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8674 else 8675 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8676 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8677 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8678 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8679 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8680 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8681 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8682 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8683 mbx_sli4_parameters); 8684 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8685 mbx_sli4_parameters); 8686 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8687 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8688 8689 /* Make sure that sge_supp_len can be handled by the driver */ 8690 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8691 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8692 8693 return 0; 8694 } 8695 8696 /** 8697 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8698 * @pdev: pointer to PCI device 8699 * @pid: pointer to PCI device identifier 8700 * 8701 * This routine is to be called to attach a device with SLI-3 interface spec 8702 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8703 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8704 * information of the device and driver to see if the driver state that it can 8705 * support this kind of device. If the match is successful, the driver core 8706 * invokes this routine. If this routine determines it can claim the HBA, it 8707 * does all the initialization that it needs to do to handle the HBA properly. 8708 * 8709 * Return code 8710 * 0 - driver can claim the device 8711 * negative value - driver can not claim the device 8712 **/ 8713 static int __devinit 8714 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8715 { 8716 struct lpfc_hba *phba; 8717 struct lpfc_vport *vport = NULL; 8718 struct Scsi_Host *shost = NULL; 8719 int error; 8720 uint32_t cfg_mode, intr_mode; 8721 8722 /* Allocate memory for HBA structure */ 8723 phba = lpfc_hba_alloc(pdev); 8724 if (!phba) 8725 return -ENOMEM; 8726 8727 /* Perform generic PCI device enabling operation */ 8728 error = lpfc_enable_pci_dev(phba); 8729 if (error) 8730 goto out_free_phba; 8731 8732 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8733 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8734 if (error) 8735 goto out_disable_pci_dev; 8736 8737 /* Set up SLI-3 specific device PCI memory space */ 8738 error = lpfc_sli_pci_mem_setup(phba); 8739 if (error) { 8740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8741 "1402 Failed to set up pci memory space.\n"); 8742 goto out_disable_pci_dev; 8743 } 8744 8745 /* Set up phase-1 common device driver resources */ 8746 error = lpfc_setup_driver_resource_phase1(phba); 8747 if (error) { 8748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8749 "1403 Failed to set up driver resource.\n"); 8750 goto out_unset_pci_mem_s3; 8751 } 8752 8753 /* Set up SLI-3 specific device driver resources */ 8754 error = lpfc_sli_driver_resource_setup(phba); 8755 if (error) { 8756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8757 "1404 Failed to set up driver resource.\n"); 8758 goto out_unset_pci_mem_s3; 8759 } 8760 8761 /* Initialize and populate the iocb list per host */ 8762 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8763 if (error) { 8764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8765 "1405 Failed to initialize iocb list.\n"); 8766 goto out_unset_driver_resource_s3; 8767 } 8768 8769 /* Set up common device driver resources */ 8770 error = lpfc_setup_driver_resource_phase2(phba); 8771 if (error) { 8772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8773 "1406 Failed to set up driver resource.\n"); 8774 goto out_free_iocb_list; 8775 } 8776 8777 /* Get the default values for Model Name and Description */ 8778 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8779 8780 /* Create SCSI host to the physical port */ 8781 error = lpfc_create_shost(phba); 8782 if (error) { 8783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8784 "1407 Failed to create scsi host.\n"); 8785 goto out_unset_driver_resource; 8786 } 8787 8788 /* Configure sysfs attributes */ 8789 vport = phba->pport; 8790 error = lpfc_alloc_sysfs_attr(vport); 8791 if (error) { 8792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8793 "1476 Failed to allocate sysfs attr\n"); 8794 goto out_destroy_shost; 8795 } 8796 8797 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8798 /* Now, trying to enable interrupt and bring up the device */ 8799 cfg_mode = phba->cfg_use_msi; 8800 while (true) { 8801 /* Put device to a known state before enabling interrupt */ 8802 lpfc_stop_port(phba); 8803 /* Configure and enable interrupt */ 8804 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8805 if (intr_mode == LPFC_INTR_ERROR) { 8806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8807 "0431 Failed to enable interrupt.\n"); 8808 error = -ENODEV; 8809 goto out_free_sysfs_attr; 8810 } 8811 /* SLI-3 HBA setup */ 8812 if (lpfc_sli_hba_setup(phba)) { 8813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8814 "1477 Failed to set up hba\n"); 8815 error = -ENODEV; 8816 goto out_remove_device; 8817 } 8818 8819 /* Wait 50ms for the interrupts of previous mailbox commands */ 8820 msleep(50); 8821 /* Check active interrupts on message signaled interrupts */ 8822 if (intr_mode == 0 || 8823 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8824 /* Log the current active interrupt mode */ 8825 phba->intr_mode = intr_mode; 8826 lpfc_log_intr_mode(phba, intr_mode); 8827 break; 8828 } else { 8829 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8830 "0447 Configure interrupt mode (%d) " 8831 "failed active interrupt test.\n", 8832 intr_mode); 8833 /* Disable the current interrupt mode */ 8834 lpfc_sli_disable_intr(phba); 8835 /* Try next level of interrupt mode */ 8836 cfg_mode = --intr_mode; 8837 } 8838 } 8839 8840 /* Perform post initialization setup */ 8841 lpfc_post_init_setup(phba); 8842 8843 /* Check if there are static vports to be created. */ 8844 lpfc_create_static_vport(phba); 8845 8846 return 0; 8847 8848 out_remove_device: 8849 lpfc_unset_hba(phba); 8850 out_free_sysfs_attr: 8851 lpfc_free_sysfs_attr(vport); 8852 out_destroy_shost: 8853 lpfc_destroy_shost(phba); 8854 out_unset_driver_resource: 8855 lpfc_unset_driver_resource_phase2(phba); 8856 out_free_iocb_list: 8857 lpfc_free_iocb_list(phba); 8858 out_unset_driver_resource_s3: 8859 lpfc_sli_driver_resource_unset(phba); 8860 out_unset_pci_mem_s3: 8861 lpfc_sli_pci_mem_unset(phba); 8862 out_disable_pci_dev: 8863 lpfc_disable_pci_dev(phba); 8864 if (shost) 8865 scsi_host_put(shost); 8866 out_free_phba: 8867 lpfc_hba_free(phba); 8868 return error; 8869 } 8870 8871 /** 8872 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8873 * @pdev: pointer to PCI device 8874 * 8875 * This routine is to be called to disattach a device with SLI-3 interface 8876 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8877 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8878 * device to be removed from the PCI subsystem properly. 8879 **/ 8880 static void __devexit 8881 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8882 { 8883 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8884 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8885 struct lpfc_vport **vports; 8886 struct lpfc_hba *phba = vport->phba; 8887 int i; 8888 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8889 8890 spin_lock_irq(&phba->hbalock); 8891 vport->load_flag |= FC_UNLOADING; 8892 spin_unlock_irq(&phba->hbalock); 8893 8894 lpfc_free_sysfs_attr(vport); 8895 8896 /* Release all the vports against this physical port */ 8897 vports = lpfc_create_vport_work_array(phba); 8898 if (vports != NULL) 8899 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 8900 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 8901 continue; 8902 fc_vport_terminate(vports[i]->fc_vport); 8903 } 8904 lpfc_destroy_vport_work_array(phba, vports); 8905 8906 /* Remove FC host and then SCSI host with the physical port */ 8907 fc_remove_host(shost); 8908 scsi_remove_host(shost); 8909 lpfc_cleanup(vport); 8910 8911 /* 8912 * Bring down the SLI Layer. This step disable all interrupts, 8913 * clears the rings, discards all mailbox commands, and resets 8914 * the HBA. 8915 */ 8916 8917 /* HBA interrupt will be disabled after this call */ 8918 lpfc_sli_hba_down(phba); 8919 /* Stop kthread signal shall trigger work_done one more time */ 8920 kthread_stop(phba->worker_thread); 8921 /* Final cleanup of txcmplq and reset the HBA */ 8922 lpfc_sli_brdrestart(phba); 8923 8924 kfree(phba->vpi_bmask); 8925 kfree(phba->vpi_ids); 8926 8927 lpfc_stop_hba_timers(phba); 8928 spin_lock_irq(&phba->hbalock); 8929 list_del_init(&vport->listentry); 8930 spin_unlock_irq(&phba->hbalock); 8931 8932 lpfc_debugfs_terminate(vport); 8933 8934 /* Disable SR-IOV if enabled */ 8935 if (phba->cfg_sriov_nr_virtfn) 8936 pci_disable_sriov(pdev); 8937 8938 /* Disable interrupt */ 8939 lpfc_sli_disable_intr(phba); 8940 8941 pci_set_drvdata(pdev, NULL); 8942 scsi_host_put(shost); 8943 8944 /* 8945 * Call scsi_free before mem_free since scsi bufs are released to their 8946 * corresponding pools here. 8947 */ 8948 lpfc_scsi_free(phba); 8949 lpfc_mem_free_all(phba); 8950 8951 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 8952 phba->hbqslimp.virt, phba->hbqslimp.phys); 8953 8954 /* Free resources associated with SLI2 interface */ 8955 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 8956 phba->slim2p.virt, phba->slim2p.phys); 8957 8958 /* unmap adapter SLIM and Control Registers */ 8959 iounmap(phba->ctrl_regs_memmap_p); 8960 iounmap(phba->slim_memmap_p); 8961 8962 lpfc_hba_free(phba); 8963 8964 pci_release_selected_regions(pdev, bars); 8965 pci_disable_device(pdev); 8966 } 8967 8968 /** 8969 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 8970 * @pdev: pointer to PCI device 8971 * @msg: power management message 8972 * 8973 * This routine is to be called from the kernel's PCI subsystem to support 8974 * system Power Management (PM) to device with SLI-3 interface spec. When 8975 * PM invokes this method, it quiesces the device by stopping the driver's 8976 * worker thread for the device, turning off device's interrupt and DMA, 8977 * and bring the device offline. Note that as the driver implements the 8978 * minimum PM requirements to a power-aware driver's PM support for the 8979 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 8980 * to the suspend() method call will be treated as SUSPEND and the driver will 8981 * fully reinitialize its device during resume() method call, the driver will 8982 * set device to PCI_D3hot state in PCI config space instead of setting it 8983 * according to the @msg provided by the PM. 8984 * 8985 * Return code 8986 * 0 - driver suspended the device 8987 * Error otherwise 8988 **/ 8989 static int 8990 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 8991 { 8992 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8993 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 8994 8995 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8996 "0473 PCI device Power Management suspend.\n"); 8997 8998 /* Bring down the device */ 8999 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9000 lpfc_offline(phba); 9001 kthread_stop(phba->worker_thread); 9002 9003 /* Disable interrupt from device */ 9004 lpfc_sli_disable_intr(phba); 9005 9006 /* Save device state to PCI config space */ 9007 pci_save_state(pdev); 9008 pci_set_power_state(pdev, PCI_D3hot); 9009 9010 return 0; 9011 } 9012 9013 /** 9014 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9015 * @pdev: pointer to PCI device 9016 * 9017 * This routine is to be called from the kernel's PCI subsystem to support 9018 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9019 * invokes this method, it restores the device's PCI config space state and 9020 * fully reinitializes the device and brings it online. Note that as the 9021 * driver implements the minimum PM requirements to a power-aware driver's 9022 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9023 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9024 * driver will fully reinitialize its device during resume() method call, 9025 * the device will be set to PCI_D0 directly in PCI config space before 9026 * restoring the state. 9027 * 9028 * Return code 9029 * 0 - driver suspended the device 9030 * Error otherwise 9031 **/ 9032 static int 9033 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9034 { 9035 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9036 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9037 uint32_t intr_mode; 9038 int error; 9039 9040 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9041 "0452 PCI device Power Management resume.\n"); 9042 9043 /* Restore device state from PCI config space */ 9044 pci_set_power_state(pdev, PCI_D0); 9045 pci_restore_state(pdev); 9046 9047 /* 9048 * As the new kernel behavior of pci_restore_state() API call clears 9049 * device saved_state flag, need to save the restored state again. 9050 */ 9051 pci_save_state(pdev); 9052 9053 if (pdev->is_busmaster) 9054 pci_set_master(pdev); 9055 9056 /* Startup the kernel thread for this host adapter. */ 9057 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9058 "lpfc_worker_%d", phba->brd_no); 9059 if (IS_ERR(phba->worker_thread)) { 9060 error = PTR_ERR(phba->worker_thread); 9061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9062 "0434 PM resume failed to start worker " 9063 "thread: error=x%x.\n", error); 9064 return error; 9065 } 9066 9067 /* Configure and enable interrupt */ 9068 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9069 if (intr_mode == LPFC_INTR_ERROR) { 9070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9071 "0430 PM resume Failed to enable interrupt\n"); 9072 return -EIO; 9073 } else 9074 phba->intr_mode = intr_mode; 9075 9076 /* Restart HBA and bring it online */ 9077 lpfc_sli_brdrestart(phba); 9078 lpfc_online(phba); 9079 9080 /* Log the current active interrupt mode */ 9081 lpfc_log_intr_mode(phba, phba->intr_mode); 9082 9083 return 0; 9084 } 9085 9086 /** 9087 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9088 * @phba: pointer to lpfc hba data structure. 9089 * 9090 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9091 * aborts all the outstanding SCSI I/Os to the pci device. 9092 **/ 9093 static void 9094 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9095 { 9096 struct lpfc_sli *psli = &phba->sli; 9097 struct lpfc_sli_ring *pring; 9098 9099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9100 "2723 PCI channel I/O abort preparing for recovery\n"); 9101 9102 /* 9103 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9104 * and let the SCSI mid-layer to retry them to recover. 9105 */ 9106 pring = &psli->ring[psli->fcp_ring]; 9107 lpfc_sli_abort_iocb_ring(phba, pring); 9108 } 9109 9110 /** 9111 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9112 * @phba: pointer to lpfc hba data structure. 9113 * 9114 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9115 * disables the device interrupt and pci device, and aborts the internal FCP 9116 * pending I/Os. 9117 **/ 9118 static void 9119 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9120 { 9121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9122 "2710 PCI channel disable preparing for reset\n"); 9123 9124 /* Block any management I/Os to the device */ 9125 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9126 9127 /* Block all SCSI devices' I/Os on the host */ 9128 lpfc_scsi_dev_block(phba); 9129 9130 /* stop all timers */ 9131 lpfc_stop_hba_timers(phba); 9132 9133 /* Disable interrupt and pci device */ 9134 lpfc_sli_disable_intr(phba); 9135 pci_disable_device(phba->pcidev); 9136 9137 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9138 lpfc_sli_flush_fcp_rings(phba); 9139 } 9140 9141 /** 9142 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9143 * @phba: pointer to lpfc hba data structure. 9144 * 9145 * This routine is called to prepare the SLI3 device for PCI slot permanently 9146 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9147 * pending I/Os. 9148 **/ 9149 static void 9150 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9151 { 9152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9153 "2711 PCI channel permanent disable for failure\n"); 9154 /* Block all SCSI devices' I/Os on the host */ 9155 lpfc_scsi_dev_block(phba); 9156 9157 /* stop all timers */ 9158 lpfc_stop_hba_timers(phba); 9159 9160 /* Clean up all driver's outstanding SCSI I/Os */ 9161 lpfc_sli_flush_fcp_rings(phba); 9162 } 9163 9164 /** 9165 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9166 * @pdev: pointer to PCI device. 9167 * @state: the current PCI connection state. 9168 * 9169 * This routine is called from the PCI subsystem for I/O error handling to 9170 * device with SLI-3 interface spec. This function is called by the PCI 9171 * subsystem after a PCI bus error affecting this device has been detected. 9172 * When this function is invoked, it will need to stop all the I/Os and 9173 * interrupt(s) to the device. Once that is done, it will return 9174 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9175 * as desired. 9176 * 9177 * Return codes 9178 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9179 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9180 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9181 **/ 9182 static pci_ers_result_t 9183 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9184 { 9185 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9186 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9187 9188 switch (state) { 9189 case pci_channel_io_normal: 9190 /* Non-fatal error, prepare for recovery */ 9191 lpfc_sli_prep_dev_for_recover(phba); 9192 return PCI_ERS_RESULT_CAN_RECOVER; 9193 case pci_channel_io_frozen: 9194 /* Fatal error, prepare for slot reset */ 9195 lpfc_sli_prep_dev_for_reset(phba); 9196 return PCI_ERS_RESULT_NEED_RESET; 9197 case pci_channel_io_perm_failure: 9198 /* Permanent failure, prepare for device down */ 9199 lpfc_sli_prep_dev_for_perm_failure(phba); 9200 return PCI_ERS_RESULT_DISCONNECT; 9201 default: 9202 /* Unknown state, prepare and request slot reset */ 9203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9204 "0472 Unknown PCI error state: x%x\n", state); 9205 lpfc_sli_prep_dev_for_reset(phba); 9206 return PCI_ERS_RESULT_NEED_RESET; 9207 } 9208 } 9209 9210 /** 9211 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9212 * @pdev: pointer to PCI device. 9213 * 9214 * This routine is called from the PCI subsystem for error handling to 9215 * device with SLI-3 interface spec. This is called after PCI bus has been 9216 * reset to restart the PCI card from scratch, as if from a cold-boot. 9217 * During the PCI subsystem error recovery, after driver returns 9218 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9219 * recovery and then call this routine before calling the .resume method 9220 * to recover the device. This function will initialize the HBA device, 9221 * enable the interrupt, but it will just put the HBA to offline state 9222 * without passing any I/O traffic. 9223 * 9224 * Return codes 9225 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9226 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9227 */ 9228 static pci_ers_result_t 9229 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9230 { 9231 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9232 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9233 struct lpfc_sli *psli = &phba->sli; 9234 uint32_t intr_mode; 9235 9236 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9237 if (pci_enable_device_mem(pdev)) { 9238 printk(KERN_ERR "lpfc: Cannot re-enable " 9239 "PCI device after reset.\n"); 9240 return PCI_ERS_RESULT_DISCONNECT; 9241 } 9242 9243 pci_restore_state(pdev); 9244 9245 /* 9246 * As the new kernel behavior of pci_restore_state() API call clears 9247 * device saved_state flag, need to save the restored state again. 9248 */ 9249 pci_save_state(pdev); 9250 9251 if (pdev->is_busmaster) 9252 pci_set_master(pdev); 9253 9254 spin_lock_irq(&phba->hbalock); 9255 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9256 spin_unlock_irq(&phba->hbalock); 9257 9258 /* Configure and enable interrupt */ 9259 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9260 if (intr_mode == LPFC_INTR_ERROR) { 9261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9262 "0427 Cannot re-enable interrupt after " 9263 "slot reset.\n"); 9264 return PCI_ERS_RESULT_DISCONNECT; 9265 } else 9266 phba->intr_mode = intr_mode; 9267 9268 /* Take device offline, it will perform cleanup */ 9269 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9270 lpfc_offline(phba); 9271 lpfc_sli_brdrestart(phba); 9272 9273 /* Log the current active interrupt mode */ 9274 lpfc_log_intr_mode(phba, phba->intr_mode); 9275 9276 return PCI_ERS_RESULT_RECOVERED; 9277 } 9278 9279 /** 9280 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9281 * @pdev: pointer to PCI device 9282 * 9283 * This routine is called from the PCI subsystem for error handling to device 9284 * with SLI-3 interface spec. It is called when kernel error recovery tells 9285 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9286 * error recovery. After this call, traffic can start to flow from this device 9287 * again. 9288 */ 9289 static void 9290 lpfc_io_resume_s3(struct pci_dev *pdev) 9291 { 9292 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9293 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9294 9295 /* Bring device online, it will be no-op for non-fatal error resume */ 9296 lpfc_online(phba); 9297 9298 /* Clean up Advanced Error Reporting (AER) if needed */ 9299 if (phba->hba_flag & HBA_AER_ENABLED) 9300 pci_cleanup_aer_uncorrect_error_status(pdev); 9301 } 9302 9303 /** 9304 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9305 * @phba: pointer to lpfc hba data structure. 9306 * 9307 * returns the number of ELS/CT IOCBs to reserve 9308 **/ 9309 int 9310 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9311 { 9312 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9313 9314 if (phba->sli_rev == LPFC_SLI_REV4) { 9315 if (max_xri <= 100) 9316 return 10; 9317 else if (max_xri <= 256) 9318 return 25; 9319 else if (max_xri <= 512) 9320 return 50; 9321 else if (max_xri <= 1024) 9322 return 100; 9323 else if (max_xri <= 1536) 9324 return 150; 9325 else if (max_xri <= 2048) 9326 return 200; 9327 else 9328 return 250; 9329 } else 9330 return 0; 9331 } 9332 9333 /** 9334 * lpfc_write_firmware - attempt to write a firmware image to the port 9335 * @phba: pointer to lpfc hba data structure. 9336 * @fw: pointer to firmware image returned from request_firmware. 9337 * 9338 * returns the number of bytes written if write is successful. 9339 * returns a negative error value if there were errors. 9340 * returns 0 if firmware matches currently active firmware on port. 9341 **/ 9342 int 9343 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) 9344 { 9345 char fwrev[FW_REV_STR_SIZE]; 9346 struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; 9347 struct list_head dma_buffer_list; 9348 int i, rc = 0; 9349 struct lpfc_dmabuf *dmabuf, *next; 9350 uint32_t offset = 0, temp_offset = 0; 9351 9352 INIT_LIST_HEAD(&dma_buffer_list); 9353 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9354 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9355 LPFC_FILE_TYPE_GROUP) || 9356 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9357 (be32_to_cpu(image->size) != fw->size)) { 9358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9359 "3022 Invalid FW image found. " 9360 "Magic:%x Type:%x ID:%x\n", 9361 be32_to_cpu(image->magic_number), 9362 bf_get_be32(lpfc_grp_hdr_file_type, image), 9363 bf_get_be32(lpfc_grp_hdr_id, image)); 9364 return -EINVAL; 9365 } 9366 lpfc_decode_firmware_rev(phba, fwrev, 1); 9367 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9369 "3023 Updating Firmware. Current Version:%s " 9370 "New Version:%s\n", 9371 fwrev, image->revision); 9372 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9373 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9374 GFP_KERNEL); 9375 if (!dmabuf) { 9376 rc = -ENOMEM; 9377 goto out; 9378 } 9379 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9380 SLI4_PAGE_SIZE, 9381 &dmabuf->phys, 9382 GFP_KERNEL); 9383 if (!dmabuf->virt) { 9384 kfree(dmabuf); 9385 rc = -ENOMEM; 9386 goto out; 9387 } 9388 list_add_tail(&dmabuf->list, &dma_buffer_list); 9389 } 9390 while (offset < fw->size) { 9391 temp_offset = offset; 9392 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9393 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9394 memcpy(dmabuf->virt, 9395 fw->data + temp_offset, 9396 fw->size - temp_offset); 9397 temp_offset = fw->size; 9398 break; 9399 } 9400 memcpy(dmabuf->virt, fw->data + temp_offset, 9401 SLI4_PAGE_SIZE); 9402 temp_offset += SLI4_PAGE_SIZE; 9403 } 9404 rc = lpfc_wr_object(phba, &dma_buffer_list, 9405 (fw->size - offset), &offset); 9406 if (rc) { 9407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9408 "3024 Firmware update failed. " 9409 "%d\n", rc); 9410 goto out; 9411 } 9412 } 9413 rc = offset; 9414 } 9415 out: 9416 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9417 list_del(&dmabuf->list); 9418 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9419 dmabuf->virt, dmabuf->phys); 9420 kfree(dmabuf); 9421 } 9422 return rc; 9423 } 9424 9425 /** 9426 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9427 * @pdev: pointer to PCI device 9428 * @pid: pointer to PCI device identifier 9429 * 9430 * This routine is called from the kernel's PCI subsystem to device with 9431 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9432 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9433 * information of the device and driver to see if the driver state that it 9434 * can support this kind of device. If the match is successful, the driver 9435 * core invokes this routine. If this routine determines it can claim the HBA, 9436 * it does all the initialization that it needs to do to handle the HBA 9437 * properly. 9438 * 9439 * Return code 9440 * 0 - driver can claim the device 9441 * negative value - driver can not claim the device 9442 **/ 9443 static int __devinit 9444 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9445 { 9446 struct lpfc_hba *phba; 9447 struct lpfc_vport *vport = NULL; 9448 struct Scsi_Host *shost = NULL; 9449 int error; 9450 uint32_t cfg_mode, intr_mode; 9451 int mcnt; 9452 int adjusted_fcp_eq_count; 9453 const struct firmware *fw; 9454 uint8_t file_name[16]; 9455 9456 /* Allocate memory for HBA structure */ 9457 phba = lpfc_hba_alloc(pdev); 9458 if (!phba) 9459 return -ENOMEM; 9460 9461 /* Perform generic PCI device enabling operation */ 9462 error = lpfc_enable_pci_dev(phba); 9463 if (error) 9464 goto out_free_phba; 9465 9466 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9467 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9468 if (error) 9469 goto out_disable_pci_dev; 9470 9471 /* Set up SLI-4 specific device PCI memory space */ 9472 error = lpfc_sli4_pci_mem_setup(phba); 9473 if (error) { 9474 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9475 "1410 Failed to set up pci memory space.\n"); 9476 goto out_disable_pci_dev; 9477 } 9478 9479 /* Set up phase-1 common device driver resources */ 9480 error = lpfc_setup_driver_resource_phase1(phba); 9481 if (error) { 9482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9483 "1411 Failed to set up driver resource.\n"); 9484 goto out_unset_pci_mem_s4; 9485 } 9486 9487 /* Set up SLI-4 Specific device driver resources */ 9488 error = lpfc_sli4_driver_resource_setup(phba); 9489 if (error) { 9490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9491 "1412 Failed to set up driver resource.\n"); 9492 goto out_unset_pci_mem_s4; 9493 } 9494 9495 /* Initialize and populate the iocb list per host */ 9496 9497 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9498 "2821 initialize iocb list %d.\n", 9499 phba->cfg_iocb_cnt*1024); 9500 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9501 9502 if (error) { 9503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9504 "1413 Failed to initialize iocb list.\n"); 9505 goto out_unset_driver_resource_s4; 9506 } 9507 9508 INIT_LIST_HEAD(&phba->active_rrq_list); 9509 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9510 9511 /* Set up common device driver resources */ 9512 error = lpfc_setup_driver_resource_phase2(phba); 9513 if (error) { 9514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9515 "1414 Failed to set up driver resource.\n"); 9516 goto out_free_iocb_list; 9517 } 9518 9519 /* Get the default values for Model Name and Description */ 9520 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9521 9522 /* Create SCSI host to the physical port */ 9523 error = lpfc_create_shost(phba); 9524 if (error) { 9525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9526 "1415 Failed to create scsi host.\n"); 9527 goto out_unset_driver_resource; 9528 } 9529 9530 /* Configure sysfs attributes */ 9531 vport = phba->pport; 9532 error = lpfc_alloc_sysfs_attr(vport); 9533 if (error) { 9534 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9535 "1416 Failed to allocate sysfs attr\n"); 9536 goto out_destroy_shost; 9537 } 9538 9539 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9540 /* Now, trying to enable interrupt and bring up the device */ 9541 cfg_mode = phba->cfg_use_msi; 9542 while (true) { 9543 /* Put device to a known state before enabling interrupt */ 9544 lpfc_stop_port(phba); 9545 /* Configure and enable interrupt */ 9546 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9547 if (intr_mode == LPFC_INTR_ERROR) { 9548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9549 "0426 Failed to enable interrupt.\n"); 9550 error = -ENODEV; 9551 goto out_free_sysfs_attr; 9552 } 9553 /* Default to single EQ for non-MSI-X */ 9554 if (phba->intr_type != MSIX) 9555 adjusted_fcp_eq_count = 0; 9556 else if (phba->sli4_hba.msix_vec_nr < 9557 phba->cfg_fcp_eq_count + 1) 9558 adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1; 9559 else 9560 adjusted_fcp_eq_count = phba->cfg_fcp_eq_count; 9561 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count; 9562 /* Set up SLI-4 HBA */ 9563 if (lpfc_sli4_hba_setup(phba)) { 9564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9565 "1421 Failed to set up hba\n"); 9566 error = -ENODEV; 9567 goto out_disable_intr; 9568 } 9569 9570 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9571 if (intr_mode != 0) 9572 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9573 LPFC_ACT_INTR_CNT); 9574 9575 /* Check active interrupts received only for MSI/MSI-X */ 9576 if (intr_mode == 0 || 9577 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9578 /* Log the current active interrupt mode */ 9579 phba->intr_mode = intr_mode; 9580 lpfc_log_intr_mode(phba, intr_mode); 9581 break; 9582 } 9583 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9584 "0451 Configure interrupt mode (%d) " 9585 "failed active interrupt test.\n", 9586 intr_mode); 9587 /* Unset the previous SLI-4 HBA setup. */ 9588 /* 9589 * TODO: Is this operation compatible with IF TYPE 2 9590 * devices? All port state is deleted and cleared. 9591 */ 9592 lpfc_sli4_unset_hba(phba); 9593 /* Try next level of interrupt mode */ 9594 cfg_mode = --intr_mode; 9595 } 9596 9597 /* Perform post initialization setup */ 9598 lpfc_post_init_setup(phba); 9599 9600 /* check for firmware upgrade or downgrade (if_type 2 only) */ 9601 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 9602 LPFC_SLI_INTF_IF_TYPE_2) { 9603 snprintf(file_name, 16, "%s.grp", phba->ModelName); 9604 error = request_firmware(&fw, file_name, &phba->pcidev->dev); 9605 if (!error) { 9606 lpfc_write_firmware(phba, fw); 9607 release_firmware(fw); 9608 } 9609 } 9610 9611 /* Check if there are static vports to be created. */ 9612 lpfc_create_static_vport(phba); 9613 return 0; 9614 9615 out_disable_intr: 9616 lpfc_sli4_disable_intr(phba); 9617 out_free_sysfs_attr: 9618 lpfc_free_sysfs_attr(vport); 9619 out_destroy_shost: 9620 lpfc_destroy_shost(phba); 9621 out_unset_driver_resource: 9622 lpfc_unset_driver_resource_phase2(phba); 9623 out_free_iocb_list: 9624 lpfc_free_iocb_list(phba); 9625 out_unset_driver_resource_s4: 9626 lpfc_sli4_driver_resource_unset(phba); 9627 out_unset_pci_mem_s4: 9628 lpfc_sli4_pci_mem_unset(phba); 9629 out_disable_pci_dev: 9630 lpfc_disable_pci_dev(phba); 9631 if (shost) 9632 scsi_host_put(shost); 9633 out_free_phba: 9634 lpfc_hba_free(phba); 9635 return error; 9636 } 9637 9638 /** 9639 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9640 * @pdev: pointer to PCI device 9641 * 9642 * This routine is called from the kernel's PCI subsystem to device with 9643 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9644 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9645 * device to be removed from the PCI subsystem properly. 9646 **/ 9647 static void __devexit 9648 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9649 { 9650 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9651 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9652 struct lpfc_vport **vports; 9653 struct lpfc_hba *phba = vport->phba; 9654 int i; 9655 9656 /* Mark the device unloading flag */ 9657 spin_lock_irq(&phba->hbalock); 9658 vport->load_flag |= FC_UNLOADING; 9659 spin_unlock_irq(&phba->hbalock); 9660 9661 /* Free the HBA sysfs attributes */ 9662 lpfc_free_sysfs_attr(vport); 9663 9664 /* Release all the vports against this physical port */ 9665 vports = lpfc_create_vport_work_array(phba); 9666 if (vports != NULL) 9667 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9668 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9669 continue; 9670 fc_vport_terminate(vports[i]->fc_vport); 9671 } 9672 lpfc_destroy_vport_work_array(phba, vports); 9673 9674 /* Remove FC host and then SCSI host with the physical port */ 9675 fc_remove_host(shost); 9676 scsi_remove_host(shost); 9677 9678 /* Perform cleanup on the physical port */ 9679 lpfc_cleanup(vport); 9680 9681 /* 9682 * Bring down the SLI Layer. This step disables all interrupts, 9683 * clears the rings, discards all mailbox commands, and resets 9684 * the HBA FCoE function. 9685 */ 9686 lpfc_debugfs_terminate(vport); 9687 lpfc_sli4_hba_unset(phba); 9688 9689 spin_lock_irq(&phba->hbalock); 9690 list_del_init(&vport->listentry); 9691 spin_unlock_irq(&phba->hbalock); 9692 9693 /* Perform scsi free before driver resource_unset since scsi 9694 * buffers are released to their corresponding pools here. 9695 */ 9696 lpfc_scsi_free(phba); 9697 lpfc_sli4_driver_resource_unset(phba); 9698 9699 /* Unmap adapter Control and Doorbell registers */ 9700 lpfc_sli4_pci_mem_unset(phba); 9701 9702 /* Release PCI resources and disable device's PCI function */ 9703 scsi_host_put(shost); 9704 lpfc_disable_pci_dev(phba); 9705 9706 /* Finally, free the driver's device data structure */ 9707 lpfc_hba_free(phba); 9708 9709 return; 9710 } 9711 9712 /** 9713 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9714 * @pdev: pointer to PCI device 9715 * @msg: power management message 9716 * 9717 * This routine is called from the kernel's PCI subsystem to support system 9718 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9719 * this method, it quiesces the device by stopping the driver's worker 9720 * thread for the device, turning off device's interrupt and DMA, and bring 9721 * the device offline. Note that as the driver implements the minimum PM 9722 * requirements to a power-aware driver's PM support for suspend/resume -- all 9723 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9724 * method call will be treated as SUSPEND and the driver will fully 9725 * reinitialize its device during resume() method call, the driver will set 9726 * device to PCI_D3hot state in PCI config space instead of setting it 9727 * according to the @msg provided by the PM. 9728 * 9729 * Return code 9730 * 0 - driver suspended the device 9731 * Error otherwise 9732 **/ 9733 static int 9734 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9735 { 9736 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9737 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9738 9739 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9740 "2843 PCI device Power Management suspend.\n"); 9741 9742 /* Bring down the device */ 9743 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9744 lpfc_offline(phba); 9745 kthread_stop(phba->worker_thread); 9746 9747 /* Disable interrupt from device */ 9748 lpfc_sli4_disable_intr(phba); 9749 lpfc_sli4_queue_destroy(phba); 9750 9751 /* Save device state to PCI config space */ 9752 pci_save_state(pdev); 9753 pci_set_power_state(pdev, PCI_D3hot); 9754 9755 return 0; 9756 } 9757 9758 /** 9759 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9760 * @pdev: pointer to PCI device 9761 * 9762 * This routine is called from the kernel's PCI subsystem to support system 9763 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9764 * this method, it restores the device's PCI config space state and fully 9765 * reinitializes the device and brings it online. Note that as the driver 9766 * implements the minimum PM requirements to a power-aware driver's PM for 9767 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9768 * to the suspend() method call will be treated as SUSPEND and the driver 9769 * will fully reinitialize its device during resume() method call, the device 9770 * will be set to PCI_D0 directly in PCI config space before restoring the 9771 * state. 9772 * 9773 * Return code 9774 * 0 - driver suspended the device 9775 * Error otherwise 9776 **/ 9777 static int 9778 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9779 { 9780 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9781 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9782 uint32_t intr_mode; 9783 int error; 9784 9785 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9786 "0292 PCI device Power Management resume.\n"); 9787 9788 /* Restore device state from PCI config space */ 9789 pci_set_power_state(pdev, PCI_D0); 9790 pci_restore_state(pdev); 9791 9792 /* 9793 * As the new kernel behavior of pci_restore_state() API call clears 9794 * device saved_state flag, need to save the restored state again. 9795 */ 9796 pci_save_state(pdev); 9797 9798 if (pdev->is_busmaster) 9799 pci_set_master(pdev); 9800 9801 /* Startup the kernel thread for this host adapter. */ 9802 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9803 "lpfc_worker_%d", phba->brd_no); 9804 if (IS_ERR(phba->worker_thread)) { 9805 error = PTR_ERR(phba->worker_thread); 9806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9807 "0293 PM resume failed to start worker " 9808 "thread: error=x%x.\n", error); 9809 return error; 9810 } 9811 9812 /* Configure and enable interrupt */ 9813 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9814 if (intr_mode == LPFC_INTR_ERROR) { 9815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9816 "0294 PM resume Failed to enable interrupt\n"); 9817 return -EIO; 9818 } else 9819 phba->intr_mode = intr_mode; 9820 9821 /* Restart HBA and bring it online */ 9822 lpfc_sli_brdrestart(phba); 9823 lpfc_online(phba); 9824 9825 /* Log the current active interrupt mode */ 9826 lpfc_log_intr_mode(phba, phba->intr_mode); 9827 9828 return 0; 9829 } 9830 9831 /** 9832 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9833 * @phba: pointer to lpfc hba data structure. 9834 * 9835 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9836 * aborts all the outstanding SCSI I/Os to the pci device. 9837 **/ 9838 static void 9839 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9840 { 9841 struct lpfc_sli *psli = &phba->sli; 9842 struct lpfc_sli_ring *pring; 9843 9844 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9845 "2828 PCI channel I/O abort preparing for recovery\n"); 9846 /* 9847 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9848 * and let the SCSI mid-layer to retry them to recover. 9849 */ 9850 pring = &psli->ring[psli->fcp_ring]; 9851 lpfc_sli_abort_iocb_ring(phba, pring); 9852 } 9853 9854 /** 9855 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9856 * @phba: pointer to lpfc hba data structure. 9857 * 9858 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9859 * disables the device interrupt and pci device, and aborts the internal FCP 9860 * pending I/Os. 9861 **/ 9862 static void 9863 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 9864 { 9865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9866 "2826 PCI channel disable preparing for reset\n"); 9867 9868 /* Block any management I/Os to the device */ 9869 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 9870 9871 /* Block all SCSI devices' I/Os on the host */ 9872 lpfc_scsi_dev_block(phba); 9873 9874 /* stop all timers */ 9875 lpfc_stop_hba_timers(phba); 9876 9877 /* Disable interrupt and pci device */ 9878 lpfc_sli4_disable_intr(phba); 9879 lpfc_sli4_queue_destroy(phba); 9880 pci_disable_device(phba->pcidev); 9881 9882 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9883 lpfc_sli_flush_fcp_rings(phba); 9884 } 9885 9886 /** 9887 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 9888 * @phba: pointer to lpfc hba data structure. 9889 * 9890 * This routine is called to prepare the SLI4 device for PCI slot permanently 9891 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9892 * pending I/Os. 9893 **/ 9894 static void 9895 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9896 { 9897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9898 "2827 PCI channel permanent disable for failure\n"); 9899 9900 /* Block all SCSI devices' I/Os on the host */ 9901 lpfc_scsi_dev_block(phba); 9902 9903 /* stop all timers */ 9904 lpfc_stop_hba_timers(phba); 9905 9906 /* Clean up all driver's outstanding SCSI I/Os */ 9907 lpfc_sli_flush_fcp_rings(phba); 9908 } 9909 9910 /** 9911 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 9912 * @pdev: pointer to PCI device. 9913 * @state: the current PCI connection state. 9914 * 9915 * This routine is called from the PCI subsystem for error handling to device 9916 * with SLI-4 interface spec. This function is called by the PCI subsystem 9917 * after a PCI bus error affecting this device has been detected. When this 9918 * function is invoked, it will need to stop all the I/Os and interrupt(s) 9919 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 9920 * for the PCI subsystem to perform proper recovery as desired. 9921 * 9922 * Return codes 9923 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9924 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9925 **/ 9926 static pci_ers_result_t 9927 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 9928 { 9929 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9930 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9931 9932 switch (state) { 9933 case pci_channel_io_normal: 9934 /* Non-fatal error, prepare for recovery */ 9935 lpfc_sli4_prep_dev_for_recover(phba); 9936 return PCI_ERS_RESULT_CAN_RECOVER; 9937 case pci_channel_io_frozen: 9938 /* Fatal error, prepare for slot reset */ 9939 lpfc_sli4_prep_dev_for_reset(phba); 9940 return PCI_ERS_RESULT_NEED_RESET; 9941 case pci_channel_io_perm_failure: 9942 /* Permanent failure, prepare for device down */ 9943 lpfc_sli4_prep_dev_for_perm_failure(phba); 9944 return PCI_ERS_RESULT_DISCONNECT; 9945 default: 9946 /* Unknown state, prepare and request slot reset */ 9947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9948 "2825 Unknown PCI error state: x%x\n", state); 9949 lpfc_sli4_prep_dev_for_reset(phba); 9950 return PCI_ERS_RESULT_NEED_RESET; 9951 } 9952 } 9953 9954 /** 9955 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 9956 * @pdev: pointer to PCI device. 9957 * 9958 * This routine is called from the PCI subsystem for error handling to device 9959 * with SLI-4 interface spec. It is called after PCI bus has been reset to 9960 * restart the PCI card from scratch, as if from a cold-boot. During the 9961 * PCI subsystem error recovery, after the driver returns 9962 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9963 * recovery and then call this routine before calling the .resume method to 9964 * recover the device. This function will initialize the HBA device, enable 9965 * the interrupt, but it will just put the HBA to offline state without 9966 * passing any I/O traffic. 9967 * 9968 * Return codes 9969 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9970 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9971 */ 9972 static pci_ers_result_t 9973 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 9974 { 9975 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9976 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9977 struct lpfc_sli *psli = &phba->sli; 9978 uint32_t intr_mode; 9979 9980 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9981 if (pci_enable_device_mem(pdev)) { 9982 printk(KERN_ERR "lpfc: Cannot re-enable " 9983 "PCI device after reset.\n"); 9984 return PCI_ERS_RESULT_DISCONNECT; 9985 } 9986 9987 pci_restore_state(pdev); 9988 9989 /* 9990 * As the new kernel behavior of pci_restore_state() API call clears 9991 * device saved_state flag, need to save the restored state again. 9992 */ 9993 pci_save_state(pdev); 9994 9995 if (pdev->is_busmaster) 9996 pci_set_master(pdev); 9997 9998 spin_lock_irq(&phba->hbalock); 9999 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10000 spin_unlock_irq(&phba->hbalock); 10001 10002 /* Configure and enable interrupt */ 10003 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10004 if (intr_mode == LPFC_INTR_ERROR) { 10005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10006 "2824 Cannot re-enable interrupt after " 10007 "slot reset.\n"); 10008 return PCI_ERS_RESULT_DISCONNECT; 10009 } else 10010 phba->intr_mode = intr_mode; 10011 10012 /* Log the current active interrupt mode */ 10013 lpfc_log_intr_mode(phba, phba->intr_mode); 10014 10015 return PCI_ERS_RESULT_RECOVERED; 10016 } 10017 10018 /** 10019 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10020 * @pdev: pointer to PCI device 10021 * 10022 * This routine is called from the PCI subsystem for error handling to device 10023 * with SLI-4 interface spec. It is called when kernel error recovery tells 10024 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10025 * error recovery. After this call, traffic can start to flow from this device 10026 * again. 10027 **/ 10028 static void 10029 lpfc_io_resume_s4(struct pci_dev *pdev) 10030 { 10031 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10032 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10033 10034 /* 10035 * In case of slot reset, as function reset is performed through 10036 * mailbox command which needs DMA to be enabled, this operation 10037 * has to be moved to the io resume phase. Taking device offline 10038 * will perform the necessary cleanup. 10039 */ 10040 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10041 /* Perform device reset */ 10042 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10043 lpfc_offline(phba); 10044 lpfc_sli_brdrestart(phba); 10045 /* Bring the device back online */ 10046 lpfc_online(phba); 10047 } 10048 10049 /* Clean up Advanced Error Reporting (AER) if needed */ 10050 if (phba->hba_flag & HBA_AER_ENABLED) 10051 pci_cleanup_aer_uncorrect_error_status(pdev); 10052 } 10053 10054 /** 10055 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10056 * @pdev: pointer to PCI device 10057 * @pid: pointer to PCI device identifier 10058 * 10059 * This routine is to be registered to the kernel's PCI subsystem. When an 10060 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10061 * at PCI device-specific information of the device and driver to see if the 10062 * driver state that it can support this kind of device. If the match is 10063 * successful, the driver core invokes this routine. This routine dispatches 10064 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10065 * do all the initialization that it needs to do to handle the HBA device 10066 * properly. 10067 * 10068 * Return code 10069 * 0 - driver can claim the device 10070 * negative value - driver can not claim the device 10071 **/ 10072 static int __devinit 10073 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10074 { 10075 int rc; 10076 struct lpfc_sli_intf intf; 10077 10078 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10079 return -ENODEV; 10080 10081 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10082 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10083 rc = lpfc_pci_probe_one_s4(pdev, pid); 10084 else 10085 rc = lpfc_pci_probe_one_s3(pdev, pid); 10086 10087 return rc; 10088 } 10089 10090 /** 10091 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10092 * @pdev: pointer to PCI device 10093 * 10094 * This routine is to be registered to the kernel's PCI subsystem. When an 10095 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10096 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10097 * remove routine, which will perform all the necessary cleanup for the 10098 * device to be removed from the PCI subsystem properly. 10099 **/ 10100 static void __devexit 10101 lpfc_pci_remove_one(struct pci_dev *pdev) 10102 { 10103 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10104 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10105 10106 switch (phba->pci_dev_grp) { 10107 case LPFC_PCI_DEV_LP: 10108 lpfc_pci_remove_one_s3(pdev); 10109 break; 10110 case LPFC_PCI_DEV_OC: 10111 lpfc_pci_remove_one_s4(pdev); 10112 break; 10113 default: 10114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10115 "1424 Invalid PCI device group: 0x%x\n", 10116 phba->pci_dev_grp); 10117 break; 10118 } 10119 return; 10120 } 10121 10122 /** 10123 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10124 * @pdev: pointer to PCI device 10125 * @msg: power management message 10126 * 10127 * This routine is to be registered to the kernel's PCI subsystem to support 10128 * system Power Management (PM). When PM invokes this method, it dispatches 10129 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10130 * suspend the device. 10131 * 10132 * Return code 10133 * 0 - driver suspended the device 10134 * Error otherwise 10135 **/ 10136 static int 10137 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10138 { 10139 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10140 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10141 int rc = -ENODEV; 10142 10143 switch (phba->pci_dev_grp) { 10144 case LPFC_PCI_DEV_LP: 10145 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10146 break; 10147 case LPFC_PCI_DEV_OC: 10148 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10149 break; 10150 default: 10151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10152 "1425 Invalid PCI device group: 0x%x\n", 10153 phba->pci_dev_grp); 10154 break; 10155 } 10156 return rc; 10157 } 10158 10159 /** 10160 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10161 * @pdev: pointer to PCI device 10162 * 10163 * This routine is to be registered to the kernel's PCI subsystem to support 10164 * system Power Management (PM). When PM invokes this method, it dispatches 10165 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10166 * resume the device. 10167 * 10168 * Return code 10169 * 0 - driver suspended the device 10170 * Error otherwise 10171 **/ 10172 static int 10173 lpfc_pci_resume_one(struct pci_dev *pdev) 10174 { 10175 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10176 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10177 int rc = -ENODEV; 10178 10179 switch (phba->pci_dev_grp) { 10180 case LPFC_PCI_DEV_LP: 10181 rc = lpfc_pci_resume_one_s3(pdev); 10182 break; 10183 case LPFC_PCI_DEV_OC: 10184 rc = lpfc_pci_resume_one_s4(pdev); 10185 break; 10186 default: 10187 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10188 "1426 Invalid PCI device group: 0x%x\n", 10189 phba->pci_dev_grp); 10190 break; 10191 } 10192 return rc; 10193 } 10194 10195 /** 10196 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10197 * @pdev: pointer to PCI device. 10198 * @state: the current PCI connection state. 10199 * 10200 * This routine is registered to the PCI subsystem for error handling. This 10201 * function is called by the PCI subsystem after a PCI bus error affecting 10202 * this device has been detected. When this routine is invoked, it dispatches 10203 * the action to the proper SLI-3 or SLI-4 device error detected handling 10204 * routine, which will perform the proper error detected operation. 10205 * 10206 * Return codes 10207 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10208 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10209 **/ 10210 static pci_ers_result_t 10211 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10212 { 10213 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10214 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10215 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10216 10217 switch (phba->pci_dev_grp) { 10218 case LPFC_PCI_DEV_LP: 10219 rc = lpfc_io_error_detected_s3(pdev, state); 10220 break; 10221 case LPFC_PCI_DEV_OC: 10222 rc = lpfc_io_error_detected_s4(pdev, state); 10223 break; 10224 default: 10225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10226 "1427 Invalid PCI device group: 0x%x\n", 10227 phba->pci_dev_grp); 10228 break; 10229 } 10230 return rc; 10231 } 10232 10233 /** 10234 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10235 * @pdev: pointer to PCI device. 10236 * 10237 * This routine is registered to the PCI subsystem for error handling. This 10238 * function is called after PCI bus has been reset to restart the PCI card 10239 * from scratch, as if from a cold-boot. When this routine is invoked, it 10240 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10241 * routine, which will perform the proper device reset. 10242 * 10243 * Return codes 10244 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10245 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10246 **/ 10247 static pci_ers_result_t 10248 lpfc_io_slot_reset(struct pci_dev *pdev) 10249 { 10250 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10251 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10252 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10253 10254 switch (phba->pci_dev_grp) { 10255 case LPFC_PCI_DEV_LP: 10256 rc = lpfc_io_slot_reset_s3(pdev); 10257 break; 10258 case LPFC_PCI_DEV_OC: 10259 rc = lpfc_io_slot_reset_s4(pdev); 10260 break; 10261 default: 10262 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10263 "1428 Invalid PCI device group: 0x%x\n", 10264 phba->pci_dev_grp); 10265 break; 10266 } 10267 return rc; 10268 } 10269 10270 /** 10271 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10272 * @pdev: pointer to PCI device 10273 * 10274 * This routine is registered to the PCI subsystem for error handling. It 10275 * is called when kernel error recovery tells the lpfc driver that it is 10276 * OK to resume normal PCI operation after PCI bus error recovery. When 10277 * this routine is invoked, it dispatches the action to the proper SLI-3 10278 * or SLI-4 device io_resume routine, which will resume the device operation. 10279 **/ 10280 static void 10281 lpfc_io_resume(struct pci_dev *pdev) 10282 { 10283 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10284 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10285 10286 switch (phba->pci_dev_grp) { 10287 case LPFC_PCI_DEV_LP: 10288 lpfc_io_resume_s3(pdev); 10289 break; 10290 case LPFC_PCI_DEV_OC: 10291 lpfc_io_resume_s4(pdev); 10292 break; 10293 default: 10294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10295 "1429 Invalid PCI device group: 0x%x\n", 10296 phba->pci_dev_grp); 10297 break; 10298 } 10299 return; 10300 } 10301 10302 /** 10303 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10304 * @inode: pointer to the inode representing the lpfcmgmt device 10305 * @filep: pointer to the file representing the open lpfcmgmt device 10306 * 10307 * This routine puts a reference count on the lpfc module whenever the 10308 * character device is opened 10309 **/ 10310 static int 10311 lpfc_mgmt_open(struct inode *inode, struct file *filep) 10312 { 10313 try_module_get(THIS_MODULE); 10314 return 0; 10315 } 10316 10317 /** 10318 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10319 * @inode: pointer to the inode representing the lpfcmgmt device 10320 * @filep: pointer to the file representing the open lpfcmgmt device 10321 * 10322 * This routine removes a reference count from the lpfc module when the 10323 * character device is closed 10324 **/ 10325 static int 10326 lpfc_mgmt_release(struct inode *inode, struct file *filep) 10327 { 10328 module_put(THIS_MODULE); 10329 return 0; 10330 } 10331 10332 static struct pci_device_id lpfc_id_table[] = { 10333 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10334 PCI_ANY_ID, PCI_ANY_ID, }, 10335 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10336 PCI_ANY_ID, PCI_ANY_ID, }, 10337 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10338 PCI_ANY_ID, PCI_ANY_ID, }, 10339 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10340 PCI_ANY_ID, PCI_ANY_ID, }, 10341 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10342 PCI_ANY_ID, PCI_ANY_ID, }, 10343 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10344 PCI_ANY_ID, PCI_ANY_ID, }, 10345 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10346 PCI_ANY_ID, PCI_ANY_ID, }, 10347 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10348 PCI_ANY_ID, PCI_ANY_ID, }, 10349 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10350 PCI_ANY_ID, PCI_ANY_ID, }, 10351 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10352 PCI_ANY_ID, PCI_ANY_ID, }, 10353 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10354 PCI_ANY_ID, PCI_ANY_ID, }, 10355 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10356 PCI_ANY_ID, PCI_ANY_ID, }, 10357 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10358 PCI_ANY_ID, PCI_ANY_ID, }, 10359 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10360 PCI_ANY_ID, PCI_ANY_ID, }, 10361 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10362 PCI_ANY_ID, PCI_ANY_ID, }, 10363 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10364 PCI_ANY_ID, PCI_ANY_ID, }, 10365 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10366 PCI_ANY_ID, PCI_ANY_ID, }, 10367 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10368 PCI_ANY_ID, PCI_ANY_ID, }, 10369 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10370 PCI_ANY_ID, PCI_ANY_ID, }, 10371 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10372 PCI_ANY_ID, PCI_ANY_ID, }, 10373 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10374 PCI_ANY_ID, PCI_ANY_ID, }, 10375 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10376 PCI_ANY_ID, PCI_ANY_ID, }, 10377 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10378 PCI_ANY_ID, PCI_ANY_ID, }, 10379 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10380 PCI_ANY_ID, PCI_ANY_ID, }, 10381 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10382 PCI_ANY_ID, PCI_ANY_ID, }, 10383 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10384 PCI_ANY_ID, PCI_ANY_ID, }, 10385 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10386 PCI_ANY_ID, PCI_ANY_ID, }, 10387 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10388 PCI_ANY_ID, PCI_ANY_ID, }, 10389 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10390 PCI_ANY_ID, PCI_ANY_ID, }, 10391 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10392 PCI_ANY_ID, PCI_ANY_ID, }, 10393 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10394 PCI_ANY_ID, PCI_ANY_ID, }, 10395 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10396 PCI_ANY_ID, PCI_ANY_ID, }, 10397 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10398 PCI_ANY_ID, PCI_ANY_ID, }, 10399 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10400 PCI_ANY_ID, PCI_ANY_ID, }, 10401 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10402 PCI_ANY_ID, PCI_ANY_ID, }, 10403 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10404 PCI_ANY_ID, PCI_ANY_ID, }, 10405 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10406 PCI_ANY_ID, PCI_ANY_ID, }, 10407 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10408 PCI_ANY_ID, PCI_ANY_ID, }, 10409 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10410 PCI_ANY_ID, PCI_ANY_ID, }, 10411 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10412 PCI_ANY_ID, PCI_ANY_ID, }, 10413 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10414 PCI_ANY_ID, PCI_ANY_ID, }, 10415 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10416 PCI_ANY_ID, PCI_ANY_ID, }, 10417 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10418 PCI_ANY_ID, PCI_ANY_ID, }, 10419 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10420 PCI_ANY_ID, PCI_ANY_ID, }, 10421 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10422 PCI_ANY_ID, PCI_ANY_ID, }, 10423 { 0 } 10424 }; 10425 10426 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10427 10428 static struct pci_error_handlers lpfc_err_handler = { 10429 .error_detected = lpfc_io_error_detected, 10430 .slot_reset = lpfc_io_slot_reset, 10431 .resume = lpfc_io_resume, 10432 }; 10433 10434 static struct pci_driver lpfc_driver = { 10435 .name = LPFC_DRIVER_NAME, 10436 .id_table = lpfc_id_table, 10437 .probe = lpfc_pci_probe_one, 10438 .remove = __devexit_p(lpfc_pci_remove_one), 10439 .suspend = lpfc_pci_suspend_one, 10440 .resume = lpfc_pci_resume_one, 10441 .err_handler = &lpfc_err_handler, 10442 }; 10443 10444 static const struct file_operations lpfc_mgmt_fop = { 10445 .open = lpfc_mgmt_open, 10446 .release = lpfc_mgmt_release, 10447 }; 10448 10449 static struct miscdevice lpfc_mgmt_dev = { 10450 .minor = MISC_DYNAMIC_MINOR, 10451 .name = "lpfcmgmt", 10452 .fops = &lpfc_mgmt_fop, 10453 }; 10454 10455 /** 10456 * lpfc_init - lpfc module initialization routine 10457 * 10458 * This routine is to be invoked when the lpfc module is loaded into the 10459 * kernel. The special kernel macro module_init() is used to indicate the 10460 * role of this routine to the kernel as lpfc module entry point. 10461 * 10462 * Return codes 10463 * 0 - successful 10464 * -ENOMEM - FC attach transport failed 10465 * all others - failed 10466 */ 10467 static int __init 10468 lpfc_init(void) 10469 { 10470 int error = 0; 10471 10472 printk(LPFC_MODULE_DESC "\n"); 10473 printk(LPFC_COPYRIGHT "\n"); 10474 10475 error = misc_register(&lpfc_mgmt_dev); 10476 if (error) 10477 printk(KERN_ERR "Could not register lpfcmgmt device, " 10478 "misc_register returned with status %d", error); 10479 10480 if (lpfc_enable_npiv) { 10481 lpfc_transport_functions.vport_create = lpfc_vport_create; 10482 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10483 } 10484 lpfc_transport_template = 10485 fc_attach_transport(&lpfc_transport_functions); 10486 if (lpfc_transport_template == NULL) 10487 return -ENOMEM; 10488 if (lpfc_enable_npiv) { 10489 lpfc_vport_transport_template = 10490 fc_attach_transport(&lpfc_vport_transport_functions); 10491 if (lpfc_vport_transport_template == NULL) { 10492 fc_release_transport(lpfc_transport_template); 10493 return -ENOMEM; 10494 } 10495 } 10496 error = pci_register_driver(&lpfc_driver); 10497 if (error) { 10498 fc_release_transport(lpfc_transport_template); 10499 if (lpfc_enable_npiv) 10500 fc_release_transport(lpfc_vport_transport_template); 10501 } 10502 10503 return error; 10504 } 10505 10506 /** 10507 * lpfc_exit - lpfc module removal routine 10508 * 10509 * This routine is invoked when the lpfc module is removed from the kernel. 10510 * The special kernel macro module_exit() is used to indicate the role of 10511 * this routine to the kernel as lpfc module exit point. 10512 */ 10513 static void __exit 10514 lpfc_exit(void) 10515 { 10516 misc_deregister(&lpfc_mgmt_dev); 10517 pci_unregister_driver(&lpfc_driver); 10518 fc_release_transport(lpfc_transport_template); 10519 if (lpfc_enable_npiv) 10520 fc_release_transport(lpfc_vport_transport_template); 10521 if (_dump_buf_data) { 10522 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10523 "_dump_buf_data at 0x%p\n", 10524 (1L << _dump_buf_data_order), _dump_buf_data); 10525 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10526 } 10527 10528 if (_dump_buf_dif) { 10529 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10530 "_dump_buf_dif at 0x%p\n", 10531 (1L << _dump_buf_dif_order), _dump_buf_dif); 10532 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10533 } 10534 } 10535 10536 module_init(lpfc_init); 10537 module_exit(lpfc_exit); 10538 MODULE_LICENSE("GPL"); 10539 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10540 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10541 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10542