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].sli.sli3.cmdringaddr) 484 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT; 485 if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr) 486 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT; 487 if (psli->ring[psli->next_ring].sli.sli3.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 if (phba->lmt & LMT_1Gb) 1896 max_speed = 1; 1897 else 1898 max_speed = 0; 1899 1900 vp = &phba->vpd; 1901 1902 switch (dev_id) { 1903 case PCI_DEVICE_ID_FIREFLY: 1904 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"}; 1905 break; 1906 case PCI_DEVICE_ID_SUPERFLY: 1907 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 1908 m = (typeof(m)){"LP7000", "PCI", 1909 "Fibre Channel Adapter"}; 1910 else 1911 m = (typeof(m)){"LP7000E", "PCI", 1912 "Fibre Channel Adapter"}; 1913 break; 1914 case PCI_DEVICE_ID_DRAGONFLY: 1915 m = (typeof(m)){"LP8000", "PCI", 1916 "Fibre Channel Adapter"}; 1917 break; 1918 case PCI_DEVICE_ID_CENTAUR: 1919 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 1920 m = (typeof(m)){"LP9002", "PCI", 1921 "Fibre Channel Adapter"}; 1922 else 1923 m = (typeof(m)){"LP9000", "PCI", 1924 "Fibre Channel Adapter"}; 1925 break; 1926 case PCI_DEVICE_ID_RFLY: 1927 m = (typeof(m)){"LP952", "PCI", 1928 "Fibre Channel Adapter"}; 1929 break; 1930 case PCI_DEVICE_ID_PEGASUS: 1931 m = (typeof(m)){"LP9802", "PCI-X", 1932 "Fibre Channel Adapter"}; 1933 break; 1934 case PCI_DEVICE_ID_THOR: 1935 m = (typeof(m)){"LP10000", "PCI-X", 1936 "Fibre Channel Adapter"}; 1937 break; 1938 case PCI_DEVICE_ID_VIPER: 1939 m = (typeof(m)){"LPX1000", "PCI-X", 1940 "Fibre Channel Adapter"}; 1941 break; 1942 case PCI_DEVICE_ID_PFLY: 1943 m = (typeof(m)){"LP982", "PCI-X", 1944 "Fibre Channel Adapter"}; 1945 break; 1946 case PCI_DEVICE_ID_TFLY: 1947 m = (typeof(m)){"LP1050", "PCI-X", 1948 "Fibre Channel Adapter"}; 1949 break; 1950 case PCI_DEVICE_ID_HELIOS: 1951 m = (typeof(m)){"LP11000", "PCI-X2", 1952 "Fibre Channel Adapter"}; 1953 break; 1954 case PCI_DEVICE_ID_HELIOS_SCSP: 1955 m = (typeof(m)){"LP11000-SP", "PCI-X2", 1956 "Fibre Channel Adapter"}; 1957 break; 1958 case PCI_DEVICE_ID_HELIOS_DCSP: 1959 m = (typeof(m)){"LP11002-SP", "PCI-X2", 1960 "Fibre Channel Adapter"}; 1961 break; 1962 case PCI_DEVICE_ID_NEPTUNE: 1963 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"}; 1964 break; 1965 case PCI_DEVICE_ID_NEPTUNE_SCSP: 1966 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"}; 1967 break; 1968 case PCI_DEVICE_ID_NEPTUNE_DCSP: 1969 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"}; 1970 break; 1971 case PCI_DEVICE_ID_BMID: 1972 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 1973 break; 1974 case PCI_DEVICE_ID_BSMB: 1975 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"}; 1976 break; 1977 case PCI_DEVICE_ID_ZEPHYR: 1978 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1979 break; 1980 case PCI_DEVICE_ID_ZEPHYR_SCSP: 1981 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 1982 break; 1983 case PCI_DEVICE_ID_ZEPHYR_DCSP: 1984 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 1985 GE = 1; 1986 break; 1987 case PCI_DEVICE_ID_ZMID: 1988 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 1989 break; 1990 case PCI_DEVICE_ID_ZSMB: 1991 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 1992 break; 1993 case PCI_DEVICE_ID_LP101: 1994 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"}; 1995 break; 1996 case PCI_DEVICE_ID_LP10000S: 1997 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"}; 1998 break; 1999 case PCI_DEVICE_ID_LP11000S: 2000 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"}; 2001 break; 2002 case PCI_DEVICE_ID_LPE11000S: 2003 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"}; 2004 break; 2005 case PCI_DEVICE_ID_SAT: 2006 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2007 break; 2008 case PCI_DEVICE_ID_SAT_MID: 2009 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2010 break; 2011 case PCI_DEVICE_ID_SAT_SMB: 2012 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2013 break; 2014 case PCI_DEVICE_ID_SAT_DCSP: 2015 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2016 break; 2017 case PCI_DEVICE_ID_SAT_SCSP: 2018 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2019 break; 2020 case PCI_DEVICE_ID_SAT_S: 2021 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2022 break; 2023 case PCI_DEVICE_ID_HORNET: 2024 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"}; 2025 GE = 1; 2026 break; 2027 case PCI_DEVICE_ID_PROTEUS_VF: 2028 m = (typeof(m)){"LPev12000", "PCIe IOV", 2029 "Fibre Channel Adapter"}; 2030 break; 2031 case PCI_DEVICE_ID_PROTEUS_PF: 2032 m = (typeof(m)){"LPev12000", "PCIe IOV", 2033 "Fibre Channel Adapter"}; 2034 break; 2035 case PCI_DEVICE_ID_PROTEUS_S: 2036 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2037 "Fibre Channel Adapter"}; 2038 break; 2039 case PCI_DEVICE_ID_TIGERSHARK: 2040 oneConnect = 1; 2041 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2042 break; 2043 case PCI_DEVICE_ID_TOMCAT: 2044 oneConnect = 1; 2045 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2046 break; 2047 case PCI_DEVICE_ID_FALCON: 2048 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2049 "EmulexSecure Fibre"}; 2050 break; 2051 case PCI_DEVICE_ID_BALIUS: 2052 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2053 "Fibre Channel Adapter"}; 2054 break; 2055 case PCI_DEVICE_ID_LANCER_FC: 2056 case PCI_DEVICE_ID_LANCER_FC_VF: 2057 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2058 break; 2059 case PCI_DEVICE_ID_LANCER_FCOE: 2060 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2061 oneConnect = 1; 2062 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2063 break; 2064 case PCI_DEVICE_ID_SKYHAWK: 2065 case PCI_DEVICE_ID_SKYHAWK_VF: 2066 oneConnect = 1; 2067 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2068 break; 2069 default: 2070 m = (typeof(m)){"Unknown", "", ""}; 2071 break; 2072 } 2073 2074 if (mdp && mdp[0] == '\0') 2075 snprintf(mdp, 79,"%s", m.name); 2076 /* 2077 * oneConnect hba requires special processing, they are all initiators 2078 * and we put the port number on the end 2079 */ 2080 if (descp && descp[0] == '\0') { 2081 if (oneConnect) 2082 snprintf(descp, 255, 2083 "Emulex OneConnect %s, %s Initiator %s", 2084 m.name, m.function, 2085 phba->Port); 2086 else if (max_speed == 0) 2087 snprintf(descp, 255, 2088 "Emulex %s %s %s ", 2089 m.name, m.bus, m.function); 2090 else 2091 snprintf(descp, 255, 2092 "Emulex %s %d%s %s %s", 2093 m.name, max_speed, (GE) ? "GE" : "Gb", 2094 m.bus, m.function); 2095 } 2096 } 2097 2098 /** 2099 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2100 * @phba: pointer to lpfc hba data structure. 2101 * @pring: pointer to a IOCB ring. 2102 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2103 * 2104 * This routine posts a given number of IOCBs with the associated DMA buffer 2105 * descriptors specified by the cnt argument to the given IOCB ring. 2106 * 2107 * Return codes 2108 * The number of IOCBs NOT able to be posted to the IOCB ring. 2109 **/ 2110 int 2111 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2112 { 2113 IOCB_t *icmd; 2114 struct lpfc_iocbq *iocb; 2115 struct lpfc_dmabuf *mp1, *mp2; 2116 2117 cnt += pring->missbufcnt; 2118 2119 /* While there are buffers to post */ 2120 while (cnt > 0) { 2121 /* Allocate buffer for command iocb */ 2122 iocb = lpfc_sli_get_iocbq(phba); 2123 if (iocb == NULL) { 2124 pring->missbufcnt = cnt; 2125 return cnt; 2126 } 2127 icmd = &iocb->iocb; 2128 2129 /* 2 buffers can be posted per command */ 2130 /* Allocate buffer to post */ 2131 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2132 if (mp1) 2133 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2134 if (!mp1 || !mp1->virt) { 2135 kfree(mp1); 2136 lpfc_sli_release_iocbq(phba, iocb); 2137 pring->missbufcnt = cnt; 2138 return cnt; 2139 } 2140 2141 INIT_LIST_HEAD(&mp1->list); 2142 /* Allocate buffer to post */ 2143 if (cnt > 1) { 2144 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2145 if (mp2) 2146 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2147 &mp2->phys); 2148 if (!mp2 || !mp2->virt) { 2149 kfree(mp2); 2150 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2151 kfree(mp1); 2152 lpfc_sli_release_iocbq(phba, iocb); 2153 pring->missbufcnt = cnt; 2154 return cnt; 2155 } 2156 2157 INIT_LIST_HEAD(&mp2->list); 2158 } else { 2159 mp2 = NULL; 2160 } 2161 2162 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2163 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2164 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2165 icmd->ulpBdeCount = 1; 2166 cnt--; 2167 if (mp2) { 2168 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2169 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2170 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2171 cnt--; 2172 icmd->ulpBdeCount = 2; 2173 } 2174 2175 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2176 icmd->ulpLe = 1; 2177 2178 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2179 IOCB_ERROR) { 2180 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2181 kfree(mp1); 2182 cnt++; 2183 if (mp2) { 2184 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2185 kfree(mp2); 2186 cnt++; 2187 } 2188 lpfc_sli_release_iocbq(phba, iocb); 2189 pring->missbufcnt = cnt; 2190 return cnt; 2191 } 2192 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2193 if (mp2) 2194 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2195 } 2196 pring->missbufcnt = 0; 2197 return 0; 2198 } 2199 2200 /** 2201 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2202 * @phba: pointer to lpfc hba data structure. 2203 * 2204 * This routine posts initial receive IOCB buffers to the ELS ring. The 2205 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2206 * set to 64 IOCBs. 2207 * 2208 * Return codes 2209 * 0 - success (currently always success) 2210 **/ 2211 static int 2212 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2213 { 2214 struct lpfc_sli *psli = &phba->sli; 2215 2216 /* Ring 0, ELS / CT buffers */ 2217 lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2218 /* Ring 2 - FCP no buffers needed */ 2219 2220 return 0; 2221 } 2222 2223 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2224 2225 /** 2226 * lpfc_sha_init - Set up initial array of hash table entries 2227 * @HashResultPointer: pointer to an array as hash table. 2228 * 2229 * This routine sets up the initial values to the array of hash table entries 2230 * for the LC HBAs. 2231 **/ 2232 static void 2233 lpfc_sha_init(uint32_t * HashResultPointer) 2234 { 2235 HashResultPointer[0] = 0x67452301; 2236 HashResultPointer[1] = 0xEFCDAB89; 2237 HashResultPointer[2] = 0x98BADCFE; 2238 HashResultPointer[3] = 0x10325476; 2239 HashResultPointer[4] = 0xC3D2E1F0; 2240 } 2241 2242 /** 2243 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2244 * @HashResultPointer: pointer to an initial/result hash table. 2245 * @HashWorkingPointer: pointer to an working hash table. 2246 * 2247 * This routine iterates an initial hash table pointed by @HashResultPointer 2248 * with the values from the working hash table pointeed by @HashWorkingPointer. 2249 * The results are putting back to the initial hash table, returned through 2250 * the @HashResultPointer as the result hash table. 2251 **/ 2252 static void 2253 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2254 { 2255 int t; 2256 uint32_t TEMP; 2257 uint32_t A, B, C, D, E; 2258 t = 16; 2259 do { 2260 HashWorkingPointer[t] = 2261 S(1, 2262 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2263 8] ^ 2264 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2265 } while (++t <= 79); 2266 t = 0; 2267 A = HashResultPointer[0]; 2268 B = HashResultPointer[1]; 2269 C = HashResultPointer[2]; 2270 D = HashResultPointer[3]; 2271 E = HashResultPointer[4]; 2272 2273 do { 2274 if (t < 20) { 2275 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2276 } else if (t < 40) { 2277 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2278 } else if (t < 60) { 2279 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2280 } else { 2281 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2282 } 2283 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2284 E = D; 2285 D = C; 2286 C = S(30, B); 2287 B = A; 2288 A = TEMP; 2289 } while (++t <= 79); 2290 2291 HashResultPointer[0] += A; 2292 HashResultPointer[1] += B; 2293 HashResultPointer[2] += C; 2294 HashResultPointer[3] += D; 2295 HashResultPointer[4] += E; 2296 2297 } 2298 2299 /** 2300 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2301 * @RandomChallenge: pointer to the entry of host challenge random number array. 2302 * @HashWorking: pointer to the entry of the working hash array. 2303 * 2304 * This routine calculates the working hash array referred by @HashWorking 2305 * from the challenge random numbers associated with the host, referred by 2306 * @RandomChallenge. The result is put into the entry of the working hash 2307 * array and returned by reference through @HashWorking. 2308 **/ 2309 static void 2310 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2311 { 2312 *HashWorking = (*RandomChallenge ^ *HashWorking); 2313 } 2314 2315 /** 2316 * lpfc_hba_init - Perform special handling for LC HBA initialization 2317 * @phba: pointer to lpfc hba data structure. 2318 * @hbainit: pointer to an array of unsigned 32-bit integers. 2319 * 2320 * This routine performs the special handling for LC HBA initialization. 2321 **/ 2322 void 2323 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2324 { 2325 int t; 2326 uint32_t *HashWorking; 2327 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2328 2329 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2330 if (!HashWorking) 2331 return; 2332 2333 HashWorking[0] = HashWorking[78] = *pwwnn++; 2334 HashWorking[1] = HashWorking[79] = *pwwnn; 2335 2336 for (t = 0; t < 7; t++) 2337 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2338 2339 lpfc_sha_init(hbainit); 2340 lpfc_sha_iterate(hbainit, HashWorking); 2341 kfree(HashWorking); 2342 } 2343 2344 /** 2345 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2346 * @vport: pointer to a virtual N_Port data structure. 2347 * 2348 * This routine performs the necessary cleanups before deleting the @vport. 2349 * It invokes the discovery state machine to perform necessary state 2350 * transitions and to release the ndlps associated with the @vport. Note, 2351 * the physical port is treated as @vport 0. 2352 **/ 2353 void 2354 lpfc_cleanup(struct lpfc_vport *vport) 2355 { 2356 struct lpfc_hba *phba = vport->phba; 2357 struct lpfc_nodelist *ndlp, *next_ndlp; 2358 int i = 0; 2359 2360 if (phba->link_state > LPFC_LINK_DOWN) 2361 lpfc_port_link_failure(vport); 2362 2363 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2364 if (!NLP_CHK_NODE_ACT(ndlp)) { 2365 ndlp = lpfc_enable_node(vport, ndlp, 2366 NLP_STE_UNUSED_NODE); 2367 if (!ndlp) 2368 continue; 2369 spin_lock_irq(&phba->ndlp_lock); 2370 NLP_SET_FREE_REQ(ndlp); 2371 spin_unlock_irq(&phba->ndlp_lock); 2372 /* Trigger the release of the ndlp memory */ 2373 lpfc_nlp_put(ndlp); 2374 continue; 2375 } 2376 spin_lock_irq(&phba->ndlp_lock); 2377 if (NLP_CHK_FREE_REQ(ndlp)) { 2378 /* The ndlp should not be in memory free mode already */ 2379 spin_unlock_irq(&phba->ndlp_lock); 2380 continue; 2381 } else 2382 /* Indicate request for freeing ndlp memory */ 2383 NLP_SET_FREE_REQ(ndlp); 2384 spin_unlock_irq(&phba->ndlp_lock); 2385 2386 if (vport->port_type != LPFC_PHYSICAL_PORT && 2387 ndlp->nlp_DID == Fabric_DID) { 2388 /* Just free up ndlp with Fabric_DID for vports */ 2389 lpfc_nlp_put(ndlp); 2390 continue; 2391 } 2392 2393 /* take care of nodes in unused state before the state 2394 * machine taking action. 2395 */ 2396 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2397 lpfc_nlp_put(ndlp); 2398 continue; 2399 } 2400 2401 if (ndlp->nlp_type & NLP_FABRIC) 2402 lpfc_disc_state_machine(vport, ndlp, NULL, 2403 NLP_EVT_DEVICE_RECOVERY); 2404 2405 lpfc_disc_state_machine(vport, ndlp, NULL, 2406 NLP_EVT_DEVICE_RM); 2407 } 2408 2409 /* At this point, ALL ndlp's should be gone 2410 * because of the previous NLP_EVT_DEVICE_RM. 2411 * Lets wait for this to happen, if needed. 2412 */ 2413 while (!list_empty(&vport->fc_nodes)) { 2414 if (i++ > 3000) { 2415 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2416 "0233 Nodelist not empty\n"); 2417 list_for_each_entry_safe(ndlp, next_ndlp, 2418 &vport->fc_nodes, nlp_listp) { 2419 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2420 LOG_NODE, 2421 "0282 did:x%x ndlp:x%p " 2422 "usgmap:x%x refcnt:%d\n", 2423 ndlp->nlp_DID, (void *)ndlp, 2424 ndlp->nlp_usg_map, 2425 atomic_read( 2426 &ndlp->kref.refcount)); 2427 } 2428 break; 2429 } 2430 2431 /* Wait for any activity on ndlps to settle */ 2432 msleep(10); 2433 } 2434 lpfc_cleanup_vports_rrqs(vport, NULL); 2435 } 2436 2437 /** 2438 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2439 * @vport: pointer to a virtual N_Port data structure. 2440 * 2441 * This routine stops all the timers associated with a @vport. This function 2442 * is invoked before disabling or deleting a @vport. Note that the physical 2443 * port is treated as @vport 0. 2444 **/ 2445 void 2446 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2447 { 2448 del_timer_sync(&vport->els_tmofunc); 2449 del_timer_sync(&vport->fc_fdmitmo); 2450 del_timer_sync(&vport->delayed_disc_tmo); 2451 lpfc_can_disctmo(vport); 2452 return; 2453 } 2454 2455 /** 2456 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2457 * @phba: pointer to lpfc hba data structure. 2458 * 2459 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2460 * caller of this routine should already hold the host lock. 2461 **/ 2462 void 2463 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2464 { 2465 /* Clear pending FCF rediscovery wait flag */ 2466 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2467 2468 /* Now, try to stop the timer */ 2469 del_timer(&phba->fcf.redisc_wait); 2470 } 2471 2472 /** 2473 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2474 * @phba: pointer to lpfc hba data structure. 2475 * 2476 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2477 * checks whether the FCF rediscovery wait timer is pending with the host 2478 * lock held before proceeding with disabling the timer and clearing the 2479 * wait timer pendig flag. 2480 **/ 2481 void 2482 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2483 { 2484 spin_lock_irq(&phba->hbalock); 2485 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2486 /* FCF rediscovery timer already fired or stopped */ 2487 spin_unlock_irq(&phba->hbalock); 2488 return; 2489 } 2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2491 /* Clear failover in progress flags */ 2492 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2493 spin_unlock_irq(&phba->hbalock); 2494 } 2495 2496 /** 2497 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2498 * @phba: pointer to lpfc hba data structure. 2499 * 2500 * This routine stops all the timers associated with a HBA. This function is 2501 * invoked before either putting a HBA offline or unloading the driver. 2502 **/ 2503 void 2504 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2505 { 2506 lpfc_stop_vport_timers(phba->pport); 2507 del_timer_sync(&phba->sli.mbox_tmo); 2508 del_timer_sync(&phba->fabric_block_timer); 2509 del_timer_sync(&phba->eratt_poll); 2510 del_timer_sync(&phba->hb_tmofunc); 2511 if (phba->sli_rev == LPFC_SLI_REV4) { 2512 del_timer_sync(&phba->rrq_tmr); 2513 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2514 } 2515 phba->hb_outstanding = 0; 2516 2517 switch (phba->pci_dev_grp) { 2518 case LPFC_PCI_DEV_LP: 2519 /* Stop any LightPulse device specific driver timers */ 2520 del_timer_sync(&phba->fcp_poll_timer); 2521 break; 2522 case LPFC_PCI_DEV_OC: 2523 /* Stop any OneConnect device sepcific driver timers */ 2524 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2525 break; 2526 default: 2527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2528 "0297 Invalid device group (x%x)\n", 2529 phba->pci_dev_grp); 2530 break; 2531 } 2532 return; 2533 } 2534 2535 /** 2536 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2537 * @phba: pointer to lpfc hba data structure. 2538 * 2539 * This routine marks a HBA's management interface as blocked. Once the HBA's 2540 * management interface is marked as blocked, all the user space access to 2541 * the HBA, whether they are from sysfs interface or libdfc interface will 2542 * all be blocked. The HBA is set to block the management interface when the 2543 * driver prepares the HBA interface for online or offline. 2544 **/ 2545 static void 2546 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2547 { 2548 unsigned long iflag; 2549 uint8_t actcmd = MBX_HEARTBEAT; 2550 unsigned long timeout; 2551 2552 spin_lock_irqsave(&phba->hbalock, iflag); 2553 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2554 spin_unlock_irqrestore(&phba->hbalock, iflag); 2555 if (mbx_action == LPFC_MBX_NO_WAIT) 2556 return; 2557 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2558 spin_lock_irqsave(&phba->hbalock, iflag); 2559 if (phba->sli.mbox_active) { 2560 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2561 /* Determine how long we might wait for the active mailbox 2562 * command to be gracefully completed by firmware. 2563 */ 2564 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2565 phba->sli.mbox_active) * 1000) + jiffies; 2566 } 2567 spin_unlock_irqrestore(&phba->hbalock, iflag); 2568 2569 /* Wait for the outstnading mailbox command to complete */ 2570 while (phba->sli.mbox_active) { 2571 /* Check active mailbox complete status every 2ms */ 2572 msleep(2); 2573 if (time_after(jiffies, timeout)) { 2574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2575 "2813 Mgmt IO is Blocked %x " 2576 "- mbox cmd %x still active\n", 2577 phba->sli.sli_flag, actcmd); 2578 break; 2579 } 2580 } 2581 } 2582 2583 /** 2584 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2585 * @phba: pointer to lpfc hba data structure. 2586 * 2587 * Allocate RPIs for all active remote nodes. This is needed whenever 2588 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2589 * is to fixup the temporary rpi assignments. 2590 **/ 2591 void 2592 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2593 { 2594 struct lpfc_nodelist *ndlp, *next_ndlp; 2595 struct lpfc_vport **vports; 2596 int i; 2597 2598 if (phba->sli_rev != LPFC_SLI_REV4) 2599 return; 2600 2601 vports = lpfc_create_vport_work_array(phba); 2602 if (vports != NULL) { 2603 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2604 if (vports[i]->load_flag & FC_UNLOADING) 2605 continue; 2606 2607 list_for_each_entry_safe(ndlp, next_ndlp, 2608 &vports[i]->fc_nodes, 2609 nlp_listp) { 2610 if (NLP_CHK_NODE_ACT(ndlp)) 2611 ndlp->nlp_rpi = 2612 lpfc_sli4_alloc_rpi(phba); 2613 } 2614 } 2615 } 2616 lpfc_destroy_vport_work_array(phba, vports); 2617 } 2618 2619 /** 2620 * lpfc_online - Initialize and bring a HBA online 2621 * @phba: pointer to lpfc hba data structure. 2622 * 2623 * This routine initializes the HBA and brings a HBA online. During this 2624 * process, the management interface is blocked to prevent user space access 2625 * to the HBA interfering with the driver initialization. 2626 * 2627 * Return codes 2628 * 0 - successful 2629 * 1 - failed 2630 **/ 2631 int 2632 lpfc_online(struct lpfc_hba *phba) 2633 { 2634 struct lpfc_vport *vport; 2635 struct lpfc_vport **vports; 2636 int i; 2637 2638 if (!phba) 2639 return 0; 2640 vport = phba->pport; 2641 2642 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2643 return 0; 2644 2645 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2646 "0458 Bring Adapter online\n"); 2647 2648 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2649 2650 if (!lpfc_sli_queue_setup(phba)) { 2651 lpfc_unblock_mgmt_io(phba); 2652 return 1; 2653 } 2654 2655 if (phba->sli_rev == LPFC_SLI_REV4) { 2656 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2657 lpfc_unblock_mgmt_io(phba); 2658 return 1; 2659 } 2660 } else { 2661 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2662 lpfc_unblock_mgmt_io(phba); 2663 return 1; 2664 } 2665 } 2666 2667 vports = lpfc_create_vport_work_array(phba); 2668 if (vports != NULL) 2669 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2670 struct Scsi_Host *shost; 2671 shost = lpfc_shost_from_vport(vports[i]); 2672 spin_lock_irq(shost->host_lock); 2673 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2674 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 2675 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2676 if (phba->sli_rev == LPFC_SLI_REV4) 2677 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 2678 spin_unlock_irq(shost->host_lock); 2679 } 2680 lpfc_destroy_vport_work_array(phba, vports); 2681 2682 lpfc_unblock_mgmt_io(phba); 2683 return 0; 2684 } 2685 2686 /** 2687 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 2688 * @phba: pointer to lpfc hba data structure. 2689 * 2690 * This routine marks a HBA's management interface as not blocked. Once the 2691 * HBA's management interface is marked as not blocked, all the user space 2692 * access to the HBA, whether they are from sysfs interface or libdfc 2693 * interface will be allowed. The HBA is set to block the management interface 2694 * when the driver prepares the HBA interface for online or offline and then 2695 * set to unblock the management interface afterwards. 2696 **/ 2697 void 2698 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 2699 { 2700 unsigned long iflag; 2701 2702 spin_lock_irqsave(&phba->hbalock, iflag); 2703 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 2704 spin_unlock_irqrestore(&phba->hbalock, iflag); 2705 } 2706 2707 /** 2708 * lpfc_offline_prep - Prepare a HBA to be brought offline 2709 * @phba: pointer to lpfc hba data structure. 2710 * 2711 * This routine is invoked to prepare a HBA to be brought offline. It performs 2712 * unregistration login to all the nodes on all vports and flushes the mailbox 2713 * queue to make it ready to be brought offline. 2714 **/ 2715 void 2716 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 2717 { 2718 struct lpfc_vport *vport = phba->pport; 2719 struct lpfc_nodelist *ndlp, *next_ndlp; 2720 struct lpfc_vport **vports; 2721 struct Scsi_Host *shost; 2722 int i; 2723 2724 if (vport->fc_flag & FC_OFFLINE_MODE) 2725 return; 2726 2727 lpfc_block_mgmt_io(phba, mbx_action); 2728 2729 lpfc_linkdown(phba); 2730 2731 /* Issue an unreg_login to all nodes on all vports */ 2732 vports = lpfc_create_vport_work_array(phba); 2733 if (vports != NULL) { 2734 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2735 if (vports[i]->load_flag & FC_UNLOADING) 2736 continue; 2737 shost = lpfc_shost_from_vport(vports[i]); 2738 spin_lock_irq(shost->host_lock); 2739 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 2740 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 2741 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 2742 spin_unlock_irq(shost->host_lock); 2743 2744 shost = lpfc_shost_from_vport(vports[i]); 2745 list_for_each_entry_safe(ndlp, next_ndlp, 2746 &vports[i]->fc_nodes, 2747 nlp_listp) { 2748 if (!NLP_CHK_NODE_ACT(ndlp)) 2749 continue; 2750 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 2751 continue; 2752 if (ndlp->nlp_type & NLP_FABRIC) { 2753 lpfc_disc_state_machine(vports[i], ndlp, 2754 NULL, NLP_EVT_DEVICE_RECOVERY); 2755 lpfc_disc_state_machine(vports[i], ndlp, 2756 NULL, NLP_EVT_DEVICE_RM); 2757 } 2758 spin_lock_irq(shost->host_lock); 2759 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 2760 spin_unlock_irq(shost->host_lock); 2761 /* 2762 * Whenever an SLI4 port goes offline, free the 2763 * RPI. Get a new RPI when the adapter port 2764 * comes back online. 2765 */ 2766 if (phba->sli_rev == LPFC_SLI_REV4) 2767 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 2768 lpfc_unreg_rpi(vports[i], ndlp); 2769 } 2770 } 2771 } 2772 lpfc_destroy_vport_work_array(phba, vports); 2773 2774 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 2775 } 2776 2777 /** 2778 * lpfc_offline - Bring a HBA offline 2779 * @phba: pointer to lpfc hba data structure. 2780 * 2781 * This routine actually brings a HBA offline. It stops all the timers 2782 * associated with the HBA, brings down the SLI layer, and eventually 2783 * marks the HBA as in offline state for the upper layer protocol. 2784 **/ 2785 void 2786 lpfc_offline(struct lpfc_hba *phba) 2787 { 2788 struct Scsi_Host *shost; 2789 struct lpfc_vport **vports; 2790 int i; 2791 2792 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2793 return; 2794 2795 /* stop port and all timers associated with this hba */ 2796 lpfc_stop_port(phba); 2797 vports = lpfc_create_vport_work_array(phba); 2798 if (vports != NULL) 2799 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 2800 lpfc_stop_vport_timers(vports[i]); 2801 lpfc_destroy_vport_work_array(phba, vports); 2802 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2803 "0460 Bring Adapter offline\n"); 2804 /* Bring down the SLI Layer and cleanup. The HBA is offline 2805 now. */ 2806 lpfc_sli_hba_down(phba); 2807 spin_lock_irq(&phba->hbalock); 2808 phba->work_ha = 0; 2809 spin_unlock_irq(&phba->hbalock); 2810 vports = lpfc_create_vport_work_array(phba); 2811 if (vports != NULL) 2812 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2813 shost = lpfc_shost_from_vport(vports[i]); 2814 spin_lock_irq(shost->host_lock); 2815 vports[i]->work_port_events = 0; 2816 vports[i]->fc_flag |= FC_OFFLINE_MODE; 2817 spin_unlock_irq(shost->host_lock); 2818 } 2819 lpfc_destroy_vport_work_array(phba, vports); 2820 } 2821 2822 /** 2823 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 2824 * @phba: pointer to lpfc hba data structure. 2825 * 2826 * This routine is to free all the SCSI buffers and IOCBs from the driver 2827 * list back to kernel. It is called from lpfc_pci_remove_one to free 2828 * the internal resources before the device is removed from the system. 2829 **/ 2830 static void 2831 lpfc_scsi_free(struct lpfc_hba *phba) 2832 { 2833 struct lpfc_scsi_buf *sb, *sb_next; 2834 struct lpfc_iocbq *io, *io_next; 2835 2836 spin_lock_irq(&phba->hbalock); 2837 /* Release all the lpfc_scsi_bufs maintained by this host. */ 2838 spin_lock(&phba->scsi_buf_list_lock); 2839 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) { 2840 list_del(&sb->list); 2841 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data, 2842 sb->dma_handle); 2843 kfree(sb); 2844 phba->total_scsi_bufs--; 2845 } 2846 spin_unlock(&phba->scsi_buf_list_lock); 2847 2848 /* Release all the lpfc_iocbq entries maintained by this host. */ 2849 list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) { 2850 list_del(&io->list); 2851 kfree(io); 2852 phba->total_iocbq_bufs--; 2853 } 2854 2855 spin_unlock_irq(&phba->hbalock); 2856 } 2857 2858 /** 2859 * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping 2860 * @phba: pointer to lpfc hba data structure. 2861 * 2862 * This routine first calculates the sizes of the current els and allocated 2863 * scsi sgl lists, and then goes through all sgls to updates the physical 2864 * XRIs assigned due to port function reset. During port initialization, the 2865 * current els and allocated scsi sgl lists are 0s. 2866 * 2867 * Return codes 2868 * 0 - successful (for now, it always returns 0) 2869 **/ 2870 int 2871 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba) 2872 { 2873 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 2874 struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL; 2875 uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt; 2876 LIST_HEAD(els_sgl_list); 2877 LIST_HEAD(scsi_sgl_list); 2878 int rc; 2879 2880 /* 2881 * update on pci function's els xri-sgl list 2882 */ 2883 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 2884 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 2885 /* els xri-sgl expanded */ 2886 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 2887 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2888 "3157 ELS xri-sgl count increased from " 2889 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2890 els_xri_cnt); 2891 /* allocate the additional els sgls */ 2892 for (i = 0; i < xri_cnt; i++) { 2893 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 2894 GFP_KERNEL); 2895 if (sglq_entry == NULL) { 2896 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2897 "2562 Failure to allocate an " 2898 "ELS sgl entry:%d\n", i); 2899 rc = -ENOMEM; 2900 goto out_free_mem; 2901 } 2902 sglq_entry->buff_type = GEN_BUFF_TYPE; 2903 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 2904 &sglq_entry->phys); 2905 if (sglq_entry->virt == NULL) { 2906 kfree(sglq_entry); 2907 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2908 "2563 Failure to allocate an " 2909 "ELS mbuf:%d\n", i); 2910 rc = -ENOMEM; 2911 goto out_free_mem; 2912 } 2913 sglq_entry->sgl = sglq_entry->virt; 2914 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 2915 sglq_entry->state = SGL_FREED; 2916 list_add_tail(&sglq_entry->list, &els_sgl_list); 2917 } 2918 spin_lock(&phba->hbalock); 2919 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2920 spin_unlock(&phba->hbalock); 2921 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 2922 /* els xri-sgl shrinked */ 2923 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 2924 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2925 "3158 ELS xri-sgl count decreased from " 2926 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 2927 els_xri_cnt); 2928 spin_lock_irq(&phba->hbalock); 2929 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list); 2930 spin_unlock_irq(&phba->hbalock); 2931 /* release extra els sgls from list */ 2932 for (i = 0; i < xri_cnt; i++) { 2933 list_remove_head(&els_sgl_list, 2934 sglq_entry, struct lpfc_sglq, list); 2935 if (sglq_entry) { 2936 lpfc_mbuf_free(phba, sglq_entry->virt, 2937 sglq_entry->phys); 2938 kfree(sglq_entry); 2939 } 2940 } 2941 spin_lock_irq(&phba->hbalock); 2942 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list); 2943 spin_unlock_irq(&phba->hbalock); 2944 } else 2945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2946 "3163 ELS xri-sgl count unchanged: %d\n", 2947 els_xri_cnt); 2948 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 2949 2950 /* update xris to els sgls on the list */ 2951 sglq_entry = NULL; 2952 sglq_entry_next = NULL; 2953 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 2954 &phba->sli4_hba.lpfc_sgl_list, list) { 2955 lxri = lpfc_sli4_next_xritag(phba); 2956 if (lxri == NO_XRI) { 2957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2958 "2400 Failed to allocate xri for " 2959 "ELS sgl\n"); 2960 rc = -ENOMEM; 2961 goto out_free_mem; 2962 } 2963 sglq_entry->sli4_lxritag = lxri; 2964 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 2965 } 2966 2967 /* 2968 * update on pci function's allocated scsi xri-sgl list 2969 */ 2970 phba->total_scsi_bufs = 0; 2971 2972 /* maximum number of xris available for scsi buffers */ 2973 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 2974 els_xri_cnt; 2975 2976 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 2977 "2401 Current allocated SCSI xri-sgl count:%d, " 2978 "maximum SCSI xri count:%d\n", 2979 phba->sli4_hba.scsi_xri_cnt, 2980 phba->sli4_hba.scsi_xri_max); 2981 2982 spin_lock_irq(&phba->scsi_buf_list_lock); 2983 list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list); 2984 spin_unlock_irq(&phba->scsi_buf_list_lock); 2985 2986 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 2987 /* max scsi xri shrinked below the allocated scsi buffers */ 2988 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 2989 phba->sli4_hba.scsi_xri_max; 2990 /* release the extra allocated scsi buffers */ 2991 for (i = 0; i < scsi_xri_cnt; i++) { 2992 list_remove_head(&scsi_sgl_list, psb, 2993 struct lpfc_scsi_buf, list); 2994 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data, 2995 psb->dma_handle); 2996 kfree(psb); 2997 } 2998 spin_lock_irq(&phba->scsi_buf_list_lock); 2999 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3000 spin_unlock_irq(&phba->scsi_buf_list_lock); 3001 } 3002 3003 /* update xris associated to remaining allocated scsi buffers */ 3004 psb = NULL; 3005 psb_next = NULL; 3006 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3007 lxri = lpfc_sli4_next_xritag(phba); 3008 if (lxri == NO_XRI) { 3009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3010 "2560 Failed to allocate xri for " 3011 "scsi buffer\n"); 3012 rc = -ENOMEM; 3013 goto out_free_mem; 3014 } 3015 psb->cur_iocbq.sli4_lxritag = lxri; 3016 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3017 } 3018 spin_lock(&phba->scsi_buf_list_lock); 3019 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list); 3020 spin_unlock(&phba->scsi_buf_list_lock); 3021 3022 return 0; 3023 3024 out_free_mem: 3025 lpfc_free_els_sgl_list(phba); 3026 lpfc_scsi_free(phba); 3027 return rc; 3028 } 3029 3030 /** 3031 * lpfc_create_port - Create an FC port 3032 * @phba: pointer to lpfc hba data structure. 3033 * @instance: a unique integer ID to this FC port. 3034 * @dev: pointer to the device data structure. 3035 * 3036 * This routine creates a FC port for the upper layer protocol. The FC port 3037 * can be created on top of either a physical port or a virtual port provided 3038 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3039 * and associates the FC port created before adding the shost into the SCSI 3040 * layer. 3041 * 3042 * Return codes 3043 * @vport - pointer to the virtual N_Port data structure. 3044 * NULL - port create failed. 3045 **/ 3046 struct lpfc_vport * 3047 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3048 { 3049 struct lpfc_vport *vport; 3050 struct Scsi_Host *shost; 3051 int error = 0; 3052 3053 if (dev != &phba->pcidev->dev) 3054 shost = scsi_host_alloc(&lpfc_vport_template, 3055 sizeof(struct lpfc_vport)); 3056 else 3057 shost = scsi_host_alloc(&lpfc_template, 3058 sizeof(struct lpfc_vport)); 3059 if (!shost) 3060 goto out; 3061 3062 vport = (struct lpfc_vport *) shost->hostdata; 3063 vport->phba = phba; 3064 vport->load_flag |= FC_LOADING; 3065 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3066 vport->fc_rscn_flush = 0; 3067 3068 lpfc_get_vport_cfgparam(vport); 3069 shost->unique_id = instance; 3070 shost->max_id = LPFC_MAX_TARGET; 3071 shost->max_lun = vport->cfg_max_luns; 3072 shost->this_id = -1; 3073 shost->max_cmd_len = 16; 3074 if (phba->sli_rev == LPFC_SLI_REV4) { 3075 shost->dma_boundary = 3076 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3077 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3078 } 3079 3080 /* 3081 * Set initial can_queue value since 0 is no longer supported and 3082 * scsi_add_host will fail. This will be adjusted later based on the 3083 * max xri value determined in hba setup. 3084 */ 3085 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3086 if (dev != &phba->pcidev->dev) { 3087 shost->transportt = lpfc_vport_transport_template; 3088 vport->port_type = LPFC_NPIV_PORT; 3089 } else { 3090 shost->transportt = lpfc_transport_template; 3091 vport->port_type = LPFC_PHYSICAL_PORT; 3092 } 3093 3094 /* Initialize all internally managed lists. */ 3095 INIT_LIST_HEAD(&vport->fc_nodes); 3096 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3097 spin_lock_init(&vport->work_port_lock); 3098 3099 init_timer(&vport->fc_disctmo); 3100 vport->fc_disctmo.function = lpfc_disc_timeout; 3101 vport->fc_disctmo.data = (unsigned long)vport; 3102 3103 init_timer(&vport->fc_fdmitmo); 3104 vport->fc_fdmitmo.function = lpfc_fdmi_tmo; 3105 vport->fc_fdmitmo.data = (unsigned long)vport; 3106 3107 init_timer(&vport->els_tmofunc); 3108 vport->els_tmofunc.function = lpfc_els_timeout; 3109 vport->els_tmofunc.data = (unsigned long)vport; 3110 3111 init_timer(&vport->delayed_disc_tmo); 3112 vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; 3113 vport->delayed_disc_tmo.data = (unsigned long)vport; 3114 3115 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3116 if (error) 3117 goto out_put_shost; 3118 3119 spin_lock_irq(&phba->hbalock); 3120 list_add_tail(&vport->listentry, &phba->port_list); 3121 spin_unlock_irq(&phba->hbalock); 3122 return vport; 3123 3124 out_put_shost: 3125 scsi_host_put(shost); 3126 out: 3127 return NULL; 3128 } 3129 3130 /** 3131 * destroy_port - destroy an FC port 3132 * @vport: pointer to an lpfc virtual N_Port data structure. 3133 * 3134 * This routine destroys a FC port from the upper layer protocol. All the 3135 * resources associated with the port are released. 3136 **/ 3137 void 3138 destroy_port(struct lpfc_vport *vport) 3139 { 3140 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3141 struct lpfc_hba *phba = vport->phba; 3142 3143 lpfc_debugfs_terminate(vport); 3144 fc_remove_host(shost); 3145 scsi_remove_host(shost); 3146 3147 spin_lock_irq(&phba->hbalock); 3148 list_del_init(&vport->listentry); 3149 spin_unlock_irq(&phba->hbalock); 3150 3151 lpfc_cleanup(vport); 3152 return; 3153 } 3154 3155 /** 3156 * lpfc_get_instance - Get a unique integer ID 3157 * 3158 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3159 * uses the kernel idr facility to perform the task. 3160 * 3161 * Return codes: 3162 * instance - a unique integer ID allocated as the new instance. 3163 * -1 - lpfc get instance failed. 3164 **/ 3165 int 3166 lpfc_get_instance(void) 3167 { 3168 int instance = 0; 3169 3170 /* Assign an unused number */ 3171 if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL)) 3172 return -1; 3173 if (idr_get_new(&lpfc_hba_index, NULL, &instance)) 3174 return -1; 3175 return instance; 3176 } 3177 3178 /** 3179 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3180 * @shost: pointer to SCSI host data structure. 3181 * @time: elapsed time of the scan in jiffies. 3182 * 3183 * This routine is called by the SCSI layer with a SCSI host to determine 3184 * whether the scan host is finished. 3185 * 3186 * Note: there is no scan_start function as adapter initialization will have 3187 * asynchronously kicked off the link initialization. 3188 * 3189 * Return codes 3190 * 0 - SCSI host scan is not over yet. 3191 * 1 - SCSI host scan is over. 3192 **/ 3193 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3194 { 3195 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3196 struct lpfc_hba *phba = vport->phba; 3197 int stat = 0; 3198 3199 spin_lock_irq(shost->host_lock); 3200 3201 if (vport->load_flag & FC_UNLOADING) { 3202 stat = 1; 3203 goto finished; 3204 } 3205 if (time >= 30 * HZ) { 3206 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3207 "0461 Scanning longer than 30 " 3208 "seconds. Continuing initialization\n"); 3209 stat = 1; 3210 goto finished; 3211 } 3212 if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) { 3213 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3214 "0465 Link down longer than 15 " 3215 "seconds. Continuing initialization\n"); 3216 stat = 1; 3217 goto finished; 3218 } 3219 3220 if (vport->port_state != LPFC_VPORT_READY) 3221 goto finished; 3222 if (vport->num_disc_nodes || vport->fc_prli_sent) 3223 goto finished; 3224 if (vport->fc_map_cnt == 0 && time < 2 * HZ) 3225 goto finished; 3226 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3227 goto finished; 3228 3229 stat = 1; 3230 3231 finished: 3232 spin_unlock_irq(shost->host_lock); 3233 return stat; 3234 } 3235 3236 /** 3237 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3238 * @shost: pointer to SCSI host data structure. 3239 * 3240 * This routine initializes a given SCSI host attributes on a FC port. The 3241 * SCSI host can be either on top of a physical port or a virtual port. 3242 **/ 3243 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3244 { 3245 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3246 struct lpfc_hba *phba = vport->phba; 3247 /* 3248 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3249 */ 3250 3251 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3252 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3253 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3254 3255 memset(fc_host_supported_fc4s(shost), 0, 3256 sizeof(fc_host_supported_fc4s(shost))); 3257 fc_host_supported_fc4s(shost)[2] = 1; 3258 fc_host_supported_fc4s(shost)[7] = 1; 3259 3260 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3261 sizeof fc_host_symbolic_name(shost)); 3262 3263 fc_host_supported_speeds(shost) = 0; 3264 if (phba->lmt & LMT_16Gb) 3265 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3266 if (phba->lmt & LMT_10Gb) 3267 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3268 if (phba->lmt & LMT_8Gb) 3269 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3270 if (phba->lmt & LMT_4Gb) 3271 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3272 if (phba->lmt & LMT_2Gb) 3273 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3274 if (phba->lmt & LMT_1Gb) 3275 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3276 3277 fc_host_maxframe_size(shost) = 3278 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 3279 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 3280 3281 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 3282 3283 /* This value is also unchanging */ 3284 memset(fc_host_active_fc4s(shost), 0, 3285 sizeof(fc_host_active_fc4s(shost))); 3286 fc_host_active_fc4s(shost)[2] = 1; 3287 fc_host_active_fc4s(shost)[7] = 1; 3288 3289 fc_host_max_npiv_vports(shost) = phba->max_vpi; 3290 spin_lock_irq(shost->host_lock); 3291 vport->load_flag &= ~FC_LOADING; 3292 spin_unlock_irq(shost->host_lock); 3293 } 3294 3295 /** 3296 * lpfc_stop_port_s3 - Stop SLI3 device port 3297 * @phba: pointer to lpfc hba data structure. 3298 * 3299 * This routine is invoked to stop an SLI3 device port, it stops the device 3300 * from generating interrupts and stops the device driver's timers for the 3301 * device. 3302 **/ 3303 static void 3304 lpfc_stop_port_s3(struct lpfc_hba *phba) 3305 { 3306 /* Clear all interrupt enable conditions */ 3307 writel(0, phba->HCregaddr); 3308 readl(phba->HCregaddr); /* flush */ 3309 /* Clear all pending interrupts */ 3310 writel(0xffffffff, phba->HAregaddr); 3311 readl(phba->HAregaddr); /* flush */ 3312 3313 /* Reset some HBA SLI setup states */ 3314 lpfc_stop_hba_timers(phba); 3315 phba->pport->work_port_events = 0; 3316 } 3317 3318 /** 3319 * lpfc_stop_port_s4 - Stop SLI4 device port 3320 * @phba: pointer to lpfc hba data structure. 3321 * 3322 * This routine is invoked to stop an SLI4 device port, it stops the device 3323 * from generating interrupts and stops the device driver's timers for the 3324 * device. 3325 **/ 3326 static void 3327 lpfc_stop_port_s4(struct lpfc_hba *phba) 3328 { 3329 /* Reset some HBA SLI4 setup states */ 3330 lpfc_stop_hba_timers(phba); 3331 phba->pport->work_port_events = 0; 3332 phba->sli4_hba.intr_enable = 0; 3333 } 3334 3335 /** 3336 * lpfc_stop_port - Wrapper function for stopping hba port 3337 * @phba: Pointer to HBA context object. 3338 * 3339 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 3340 * the API jump table function pointer from the lpfc_hba struct. 3341 **/ 3342 void 3343 lpfc_stop_port(struct lpfc_hba *phba) 3344 { 3345 phba->lpfc_stop_port(phba); 3346 } 3347 3348 /** 3349 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 3350 * @phba: Pointer to hba for which this call is being executed. 3351 * 3352 * This routine starts the timer waiting for the FCF rediscovery to complete. 3353 **/ 3354 void 3355 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 3356 { 3357 unsigned long fcf_redisc_wait_tmo = 3358 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 3359 /* Start fcf rediscovery wait period timer */ 3360 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 3361 spin_lock_irq(&phba->hbalock); 3362 /* Allow action to new fcf asynchronous event */ 3363 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 3364 /* Mark the FCF rediscovery pending state */ 3365 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 3366 spin_unlock_irq(&phba->hbalock); 3367 } 3368 3369 /** 3370 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 3371 * @ptr: Map to lpfc_hba data structure pointer. 3372 * 3373 * This routine is invoked when waiting for FCF table rediscover has been 3374 * timed out. If new FCF record(s) has (have) been discovered during the 3375 * wait period, a new FCF event shall be added to the FCOE async event 3376 * list, and then worker thread shall be waked up for processing from the 3377 * worker thread context. 3378 **/ 3379 void 3380 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 3381 { 3382 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 3383 3384 /* Don't send FCF rediscovery event if timer cancelled */ 3385 spin_lock_irq(&phba->hbalock); 3386 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 3387 spin_unlock_irq(&phba->hbalock); 3388 return; 3389 } 3390 /* Clear FCF rediscovery timer pending flag */ 3391 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 3392 /* FCF rediscovery event to worker thread */ 3393 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 3394 spin_unlock_irq(&phba->hbalock); 3395 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 3396 "2776 FCF rediscover quiescent timer expired\n"); 3397 /* wake up worker thread */ 3398 lpfc_worker_wake_up(phba); 3399 } 3400 3401 /** 3402 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 3403 * @phba: pointer to lpfc hba data structure. 3404 * @acqe_link: pointer to the async link completion queue entry. 3405 * 3406 * This routine is to parse the SLI4 link-attention link fault code and 3407 * translate it into the base driver's read link attention mailbox command 3408 * status. 3409 * 3410 * Return: Link-attention status in terms of base driver's coding. 3411 **/ 3412 static uint16_t 3413 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 3414 struct lpfc_acqe_link *acqe_link) 3415 { 3416 uint16_t latt_fault; 3417 3418 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 3419 case LPFC_ASYNC_LINK_FAULT_NONE: 3420 case LPFC_ASYNC_LINK_FAULT_LOCAL: 3421 case LPFC_ASYNC_LINK_FAULT_REMOTE: 3422 latt_fault = 0; 3423 break; 3424 default: 3425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3426 "0398 Invalid link fault code: x%x\n", 3427 bf_get(lpfc_acqe_link_fault, acqe_link)); 3428 latt_fault = MBXERR_ERROR; 3429 break; 3430 } 3431 return latt_fault; 3432 } 3433 3434 /** 3435 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 3436 * @phba: pointer to lpfc hba data structure. 3437 * @acqe_link: pointer to the async link completion queue entry. 3438 * 3439 * This routine is to parse the SLI4 link attention type and translate it 3440 * into the base driver's link attention type coding. 3441 * 3442 * Return: Link attention type in terms of base driver's coding. 3443 **/ 3444 static uint8_t 3445 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 3446 struct lpfc_acqe_link *acqe_link) 3447 { 3448 uint8_t att_type; 3449 3450 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 3451 case LPFC_ASYNC_LINK_STATUS_DOWN: 3452 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 3453 att_type = LPFC_ATT_LINK_DOWN; 3454 break; 3455 case LPFC_ASYNC_LINK_STATUS_UP: 3456 /* Ignore physical link up events - wait for logical link up */ 3457 att_type = LPFC_ATT_RESERVED; 3458 break; 3459 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 3460 att_type = LPFC_ATT_LINK_UP; 3461 break; 3462 default: 3463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3464 "0399 Invalid link attention type: x%x\n", 3465 bf_get(lpfc_acqe_link_status, acqe_link)); 3466 att_type = LPFC_ATT_RESERVED; 3467 break; 3468 } 3469 return att_type; 3470 } 3471 3472 /** 3473 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed 3474 * @phba: pointer to lpfc hba data structure. 3475 * @acqe_link: pointer to the async link completion queue entry. 3476 * 3477 * This routine is to parse the SLI4 link-attention link speed and translate 3478 * it into the base driver's link-attention link speed coding. 3479 * 3480 * Return: Link-attention link speed in terms of base driver's coding. 3481 **/ 3482 static uint8_t 3483 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba, 3484 struct lpfc_acqe_link *acqe_link) 3485 { 3486 uint8_t link_speed; 3487 3488 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) { 3489 case LPFC_ASYNC_LINK_SPEED_ZERO: 3490 case LPFC_ASYNC_LINK_SPEED_10MBPS: 3491 case LPFC_ASYNC_LINK_SPEED_100MBPS: 3492 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3493 break; 3494 case LPFC_ASYNC_LINK_SPEED_1GBPS: 3495 link_speed = LPFC_LINK_SPEED_1GHZ; 3496 break; 3497 case LPFC_ASYNC_LINK_SPEED_10GBPS: 3498 link_speed = LPFC_LINK_SPEED_10GHZ; 3499 break; 3500 default: 3501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3502 "0483 Invalid link-attention link speed: x%x\n", 3503 bf_get(lpfc_acqe_link_speed, acqe_link)); 3504 link_speed = LPFC_LINK_SPEED_UNKNOWN; 3505 break; 3506 } 3507 return link_speed; 3508 } 3509 3510 /** 3511 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 3512 * @phba: pointer to lpfc hba data structure. 3513 * 3514 * This routine is to get an SLI3 FC port's link speed in Mbps. 3515 * 3516 * Return: link speed in terms of Mbps. 3517 **/ 3518 uint32_t 3519 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 3520 { 3521 uint32_t link_speed; 3522 3523 if (!lpfc_is_link_up(phba)) 3524 return 0; 3525 3526 switch (phba->fc_linkspeed) { 3527 case LPFC_LINK_SPEED_1GHZ: 3528 link_speed = 1000; 3529 break; 3530 case LPFC_LINK_SPEED_2GHZ: 3531 link_speed = 2000; 3532 break; 3533 case LPFC_LINK_SPEED_4GHZ: 3534 link_speed = 4000; 3535 break; 3536 case LPFC_LINK_SPEED_8GHZ: 3537 link_speed = 8000; 3538 break; 3539 case LPFC_LINK_SPEED_10GHZ: 3540 link_speed = 10000; 3541 break; 3542 case LPFC_LINK_SPEED_16GHZ: 3543 link_speed = 16000; 3544 break; 3545 default: 3546 link_speed = 0; 3547 } 3548 return link_speed; 3549 } 3550 3551 /** 3552 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 3553 * @phba: pointer to lpfc hba data structure. 3554 * @evt_code: asynchronous event code. 3555 * @speed_code: asynchronous event link speed code. 3556 * 3557 * This routine is to parse the giving SLI4 async event link speed code into 3558 * value of Mbps for the link speed. 3559 * 3560 * Return: link speed in terms of Mbps. 3561 **/ 3562 static uint32_t 3563 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 3564 uint8_t speed_code) 3565 { 3566 uint32_t port_speed; 3567 3568 switch (evt_code) { 3569 case LPFC_TRAILER_CODE_LINK: 3570 switch (speed_code) { 3571 case LPFC_EVT_CODE_LINK_NO_LINK: 3572 port_speed = 0; 3573 break; 3574 case LPFC_EVT_CODE_LINK_10_MBIT: 3575 port_speed = 10; 3576 break; 3577 case LPFC_EVT_CODE_LINK_100_MBIT: 3578 port_speed = 100; 3579 break; 3580 case LPFC_EVT_CODE_LINK_1_GBIT: 3581 port_speed = 1000; 3582 break; 3583 case LPFC_EVT_CODE_LINK_10_GBIT: 3584 port_speed = 10000; 3585 break; 3586 default: 3587 port_speed = 0; 3588 } 3589 break; 3590 case LPFC_TRAILER_CODE_FC: 3591 switch (speed_code) { 3592 case LPFC_EVT_CODE_FC_NO_LINK: 3593 port_speed = 0; 3594 break; 3595 case LPFC_EVT_CODE_FC_1_GBAUD: 3596 port_speed = 1000; 3597 break; 3598 case LPFC_EVT_CODE_FC_2_GBAUD: 3599 port_speed = 2000; 3600 break; 3601 case LPFC_EVT_CODE_FC_4_GBAUD: 3602 port_speed = 4000; 3603 break; 3604 case LPFC_EVT_CODE_FC_8_GBAUD: 3605 port_speed = 8000; 3606 break; 3607 case LPFC_EVT_CODE_FC_10_GBAUD: 3608 port_speed = 10000; 3609 break; 3610 case LPFC_EVT_CODE_FC_16_GBAUD: 3611 port_speed = 16000; 3612 break; 3613 default: 3614 port_speed = 0; 3615 } 3616 break; 3617 default: 3618 port_speed = 0; 3619 } 3620 return port_speed; 3621 } 3622 3623 /** 3624 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 3625 * @phba: pointer to lpfc hba data structure. 3626 * @acqe_link: pointer to the async link completion queue entry. 3627 * 3628 * This routine is to handle the SLI4 asynchronous FCoE link event. 3629 **/ 3630 static void 3631 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 3632 struct lpfc_acqe_link *acqe_link) 3633 { 3634 struct lpfc_dmabuf *mp; 3635 LPFC_MBOXQ_t *pmb; 3636 MAILBOX_t *mb; 3637 struct lpfc_mbx_read_top *la; 3638 uint8_t att_type; 3639 int rc; 3640 3641 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 3642 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 3643 return; 3644 phba->fcoe_eventtag = acqe_link->event_tag; 3645 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3646 if (!pmb) { 3647 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3648 "0395 The mboxq allocation failed\n"); 3649 return; 3650 } 3651 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3652 if (!mp) { 3653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3654 "0396 The lpfc_dmabuf allocation failed\n"); 3655 goto out_free_pmb; 3656 } 3657 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3658 if (!mp->virt) { 3659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3660 "0397 The mbuf allocation failed\n"); 3661 goto out_free_dmabuf; 3662 } 3663 3664 /* Cleanup any outstanding ELS commands */ 3665 lpfc_els_flush_all_cmd(phba); 3666 3667 /* Block ELS IOCBs until we have done process link event */ 3668 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3669 3670 /* Update link event statistics */ 3671 phba->sli.slistat.link_event++; 3672 3673 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3674 lpfc_read_topology(phba, pmb, mp); 3675 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3676 pmb->vport = phba->pport; 3677 3678 /* Keep the link status for extra SLI4 state machine reference */ 3679 phba->sli4_hba.link_state.speed = 3680 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 3681 bf_get(lpfc_acqe_link_speed, acqe_link)); 3682 phba->sli4_hba.link_state.duplex = 3683 bf_get(lpfc_acqe_link_duplex, acqe_link); 3684 phba->sli4_hba.link_state.status = 3685 bf_get(lpfc_acqe_link_status, acqe_link); 3686 phba->sli4_hba.link_state.type = 3687 bf_get(lpfc_acqe_link_type, acqe_link); 3688 phba->sli4_hba.link_state.number = 3689 bf_get(lpfc_acqe_link_number, acqe_link); 3690 phba->sli4_hba.link_state.fault = 3691 bf_get(lpfc_acqe_link_fault, acqe_link); 3692 phba->sli4_hba.link_state.logical_speed = 3693 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 3694 3695 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3696 "2900 Async FC/FCoE Link event - Speed:%dGBit " 3697 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 3698 "Logical speed:%dMbps Fault:%d\n", 3699 phba->sli4_hba.link_state.speed, 3700 phba->sli4_hba.link_state.topology, 3701 phba->sli4_hba.link_state.status, 3702 phba->sli4_hba.link_state.type, 3703 phba->sli4_hba.link_state.number, 3704 phba->sli4_hba.link_state.logical_speed, 3705 phba->sli4_hba.link_state.fault); 3706 /* 3707 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 3708 * topology info. Note: Optional for non FC-AL ports. 3709 */ 3710 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 3711 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3712 if (rc == MBX_NOT_FINISHED) 3713 goto out_free_dmabuf; 3714 return; 3715 } 3716 /* 3717 * For FCoE Mode: fill in all the topology information we need and call 3718 * the READ_TOPOLOGY completion routine to continue without actually 3719 * sending the READ_TOPOLOGY mailbox command to the port. 3720 */ 3721 /* Parse and translate status field */ 3722 mb = &pmb->u.mb; 3723 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 3724 3725 /* Parse and translate link attention fields */ 3726 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 3727 la->eventTag = acqe_link->event_tag; 3728 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 3729 bf_set(lpfc_mbx_read_top_link_spd, la, 3730 lpfc_sli4_parse_latt_link_speed(phba, acqe_link)); 3731 3732 /* Fake the the following irrelvant fields */ 3733 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 3734 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 3735 bf_set(lpfc_mbx_read_top_il, la, 0); 3736 bf_set(lpfc_mbx_read_top_pb, la, 0); 3737 bf_set(lpfc_mbx_read_top_fa, la, 0); 3738 bf_set(lpfc_mbx_read_top_mm, la, 0); 3739 3740 /* Invoke the lpfc_handle_latt mailbox command callback function */ 3741 lpfc_mbx_cmpl_read_topology(phba, pmb); 3742 3743 return; 3744 3745 out_free_dmabuf: 3746 kfree(mp); 3747 out_free_pmb: 3748 mempool_free(pmb, phba->mbox_mem_pool); 3749 } 3750 3751 /** 3752 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 3753 * @phba: pointer to lpfc hba data structure. 3754 * @acqe_fc: pointer to the async fc completion queue entry. 3755 * 3756 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 3757 * that the event was received and then issue a read_topology mailbox command so 3758 * that the rest of the driver will treat it the same as SLI3. 3759 **/ 3760 static void 3761 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 3762 { 3763 struct lpfc_dmabuf *mp; 3764 LPFC_MBOXQ_t *pmb; 3765 int rc; 3766 3767 if (bf_get(lpfc_trailer_type, acqe_fc) != 3768 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 3769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3770 "2895 Non FC link Event detected.(%d)\n", 3771 bf_get(lpfc_trailer_type, acqe_fc)); 3772 return; 3773 } 3774 /* Keep the link status for extra SLI4 state machine reference */ 3775 phba->sli4_hba.link_state.speed = 3776 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 3777 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 3778 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 3779 phba->sli4_hba.link_state.topology = 3780 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 3781 phba->sli4_hba.link_state.status = 3782 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 3783 phba->sli4_hba.link_state.type = 3784 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 3785 phba->sli4_hba.link_state.number = 3786 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 3787 phba->sli4_hba.link_state.fault = 3788 bf_get(lpfc_acqe_link_fault, acqe_fc); 3789 phba->sli4_hba.link_state.logical_speed = 3790 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 3791 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3792 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 3793 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 3794 "%dMbps Fault:%d\n", 3795 phba->sli4_hba.link_state.speed, 3796 phba->sli4_hba.link_state.topology, 3797 phba->sli4_hba.link_state.status, 3798 phba->sli4_hba.link_state.type, 3799 phba->sli4_hba.link_state.number, 3800 phba->sli4_hba.link_state.logical_speed, 3801 phba->sli4_hba.link_state.fault); 3802 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 3803 if (!pmb) { 3804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3805 "2897 The mboxq allocation failed\n"); 3806 return; 3807 } 3808 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 3809 if (!mp) { 3810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3811 "2898 The lpfc_dmabuf allocation failed\n"); 3812 goto out_free_pmb; 3813 } 3814 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 3815 if (!mp->virt) { 3816 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3817 "2899 The mbuf allocation failed\n"); 3818 goto out_free_dmabuf; 3819 } 3820 3821 /* Cleanup any outstanding ELS commands */ 3822 lpfc_els_flush_all_cmd(phba); 3823 3824 /* Block ELS IOCBs until we have done process link event */ 3825 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 3826 3827 /* Update link event statistics */ 3828 phba->sli.slistat.link_event++; 3829 3830 /* Create lpfc_handle_latt mailbox command from link ACQE */ 3831 lpfc_read_topology(phba, pmb, mp); 3832 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 3833 pmb->vport = phba->pport; 3834 3835 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 3836 if (rc == MBX_NOT_FINISHED) 3837 goto out_free_dmabuf; 3838 return; 3839 3840 out_free_dmabuf: 3841 kfree(mp); 3842 out_free_pmb: 3843 mempool_free(pmb, phba->mbox_mem_pool); 3844 } 3845 3846 /** 3847 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 3848 * @phba: pointer to lpfc hba data structure. 3849 * @acqe_fc: pointer to the async SLI completion queue entry. 3850 * 3851 * This routine is to handle the SLI4 asynchronous SLI events. 3852 **/ 3853 static void 3854 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 3855 { 3856 char port_name; 3857 char message[128]; 3858 uint8_t status; 3859 struct lpfc_acqe_misconfigured_event *misconfigured; 3860 3861 /* special case misconfigured event as it contains data for all ports */ 3862 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 3863 LPFC_SLI_INTF_IF_TYPE_2) || 3864 (bf_get(lpfc_trailer_type, acqe_sli) != 3865 LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) { 3866 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3867 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 3868 "x%08x SLI Event Type:%d\n", 3869 acqe_sli->event_data1, acqe_sli->event_data2, 3870 bf_get(lpfc_trailer_type, acqe_sli)); 3871 return; 3872 } 3873 3874 port_name = phba->Port[0]; 3875 if (port_name == 0x00) 3876 port_name = '?'; /* get port name is empty */ 3877 3878 misconfigured = (struct lpfc_acqe_misconfigured_event *) 3879 &acqe_sli->event_data1; 3880 3881 /* fetch the status for this port */ 3882 switch (phba->sli4_hba.lnk_info.lnk_no) { 3883 case LPFC_LINK_NUMBER_0: 3884 status = bf_get(lpfc_sli_misconfigured_port0, 3885 &misconfigured->theEvent); 3886 break; 3887 case LPFC_LINK_NUMBER_1: 3888 status = bf_get(lpfc_sli_misconfigured_port1, 3889 &misconfigured->theEvent); 3890 break; 3891 case LPFC_LINK_NUMBER_2: 3892 status = bf_get(lpfc_sli_misconfigured_port2, 3893 &misconfigured->theEvent); 3894 break; 3895 case LPFC_LINK_NUMBER_3: 3896 status = bf_get(lpfc_sli_misconfigured_port3, 3897 &misconfigured->theEvent); 3898 break; 3899 default: 3900 status = ~LPFC_SLI_EVENT_STATUS_VALID; 3901 break; 3902 } 3903 3904 switch (status) { 3905 case LPFC_SLI_EVENT_STATUS_VALID: 3906 return; /* no message if the sfp is okay */ 3907 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 3908 sprintf(message, "Optics faulted/incorrectly installed/not " \ 3909 "installed - Reseat optics, if issue not " 3910 "resolved, replace."); 3911 break; 3912 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 3913 sprintf(message, 3914 "Optics of two types installed - Remove one optic or " \ 3915 "install matching pair of optics."); 3916 break; 3917 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 3918 sprintf(message, "Incompatible optics - Replace with " \ 3919 "compatible optics for card to function."); 3920 break; 3921 default: 3922 /* firmware is reporting a status we don't know about */ 3923 sprintf(message, "Unknown event status x%02x", status); 3924 break; 3925 } 3926 3927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3928 "3176 Misconfigured Physical Port - " 3929 "Port Name %c %s\n", port_name, message); 3930 } 3931 3932 /** 3933 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 3934 * @vport: pointer to vport data structure. 3935 * 3936 * This routine is to perform Clear Virtual Link (CVL) on a vport in 3937 * response to a CVL event. 3938 * 3939 * Return the pointer to the ndlp with the vport if successful, otherwise 3940 * return NULL. 3941 **/ 3942 static struct lpfc_nodelist * 3943 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 3944 { 3945 struct lpfc_nodelist *ndlp; 3946 struct Scsi_Host *shost; 3947 struct lpfc_hba *phba; 3948 3949 if (!vport) 3950 return NULL; 3951 phba = vport->phba; 3952 if (!phba) 3953 return NULL; 3954 ndlp = lpfc_findnode_did(vport, Fabric_DID); 3955 if (!ndlp) { 3956 /* Cannot find existing Fabric ndlp, so allocate a new one */ 3957 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL); 3958 if (!ndlp) 3959 return 0; 3960 lpfc_nlp_init(vport, ndlp, Fabric_DID); 3961 /* Set the node type */ 3962 ndlp->nlp_type |= NLP_FABRIC; 3963 /* Put ndlp onto node list */ 3964 lpfc_enqueue_node(vport, ndlp); 3965 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 3966 /* re-setup ndlp without removing from node list */ 3967 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 3968 if (!ndlp) 3969 return 0; 3970 } 3971 if ((phba->pport->port_state < LPFC_FLOGI) && 3972 (phba->pport->port_state != LPFC_VPORT_FAILED)) 3973 return NULL; 3974 /* If virtual link is not yet instantiated ignore CVL */ 3975 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 3976 && (vport->port_state != LPFC_VPORT_FAILED)) 3977 return NULL; 3978 shost = lpfc_shost_from_vport(vport); 3979 if (!shost) 3980 return NULL; 3981 lpfc_linkdown_port(vport); 3982 lpfc_cleanup_pending_mbox(vport); 3983 spin_lock_irq(shost->host_lock); 3984 vport->fc_flag |= FC_VPORT_CVL_RCVD; 3985 spin_unlock_irq(shost->host_lock); 3986 3987 return ndlp; 3988 } 3989 3990 /** 3991 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 3992 * @vport: pointer to lpfc hba data structure. 3993 * 3994 * This routine is to perform Clear Virtual Link (CVL) on all vports in 3995 * response to a FCF dead event. 3996 **/ 3997 static void 3998 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 3999 { 4000 struct lpfc_vport **vports; 4001 int i; 4002 4003 vports = lpfc_create_vport_work_array(phba); 4004 if (vports) 4005 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4006 lpfc_sli4_perform_vport_cvl(vports[i]); 4007 lpfc_destroy_vport_work_array(phba, vports); 4008 } 4009 4010 /** 4011 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4012 * @phba: pointer to lpfc hba data structure. 4013 * @acqe_link: pointer to the async fcoe completion queue entry. 4014 * 4015 * This routine is to handle the SLI4 asynchronous fcoe event. 4016 **/ 4017 static void 4018 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4019 struct lpfc_acqe_fip *acqe_fip) 4020 { 4021 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4022 int rc; 4023 struct lpfc_vport *vport; 4024 struct lpfc_nodelist *ndlp; 4025 struct Scsi_Host *shost; 4026 int active_vlink_present; 4027 struct lpfc_vport **vports; 4028 int i; 4029 4030 phba->fc_eventTag = acqe_fip->event_tag; 4031 phba->fcoe_eventtag = acqe_fip->event_tag; 4032 switch (event_type) { 4033 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4034 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4035 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4036 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4037 LOG_DISCOVERY, 4038 "2546 New FCF event, evt_tag:x%x, " 4039 "index:x%x\n", 4040 acqe_fip->event_tag, 4041 acqe_fip->index); 4042 else 4043 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4044 LOG_DISCOVERY, 4045 "2788 FCF param modified event, " 4046 "evt_tag:x%x, index:x%x\n", 4047 acqe_fip->event_tag, 4048 acqe_fip->index); 4049 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4050 /* 4051 * During period of FCF discovery, read the FCF 4052 * table record indexed by the event to update 4053 * FCF roundrobin failover eligible FCF bmask. 4054 */ 4055 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4056 LOG_DISCOVERY, 4057 "2779 Read FCF (x%x) for updating " 4058 "roundrobin FCF failover bmask\n", 4059 acqe_fip->index); 4060 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4061 } 4062 4063 /* If the FCF discovery is in progress, do nothing. */ 4064 spin_lock_irq(&phba->hbalock); 4065 if (phba->hba_flag & FCF_TS_INPROG) { 4066 spin_unlock_irq(&phba->hbalock); 4067 break; 4068 } 4069 /* If fast FCF failover rescan event is pending, do nothing */ 4070 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4071 spin_unlock_irq(&phba->hbalock); 4072 break; 4073 } 4074 4075 /* If the FCF has been in discovered state, do nothing. */ 4076 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4077 spin_unlock_irq(&phba->hbalock); 4078 break; 4079 } 4080 spin_unlock_irq(&phba->hbalock); 4081 4082 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4083 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4084 "2770 Start FCF table scan per async FCF " 4085 "event, evt_tag:x%x, index:x%x\n", 4086 acqe_fip->event_tag, acqe_fip->index); 4087 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4088 LPFC_FCOE_FCF_GET_FIRST); 4089 if (rc) 4090 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4091 "2547 Issue FCF scan read FCF mailbox " 4092 "command failed (x%x)\n", rc); 4093 break; 4094 4095 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4096 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4097 "2548 FCF Table full count 0x%x tag 0x%x\n", 4098 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4099 acqe_fip->event_tag); 4100 break; 4101 4102 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4103 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4104 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4105 "2549 FCF (x%x) disconnected from network, " 4106 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4107 /* 4108 * If we are in the middle of FCF failover process, clear 4109 * the corresponding FCF bit in the roundrobin bitmap. 4110 */ 4111 spin_lock_irq(&phba->hbalock); 4112 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4113 spin_unlock_irq(&phba->hbalock); 4114 /* Update FLOGI FCF failover eligible FCF bmask */ 4115 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4116 break; 4117 } 4118 spin_unlock_irq(&phba->hbalock); 4119 4120 /* If the event is not for currently used fcf do nothing */ 4121 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4122 break; 4123 4124 /* 4125 * Otherwise, request the port to rediscover the entire FCF 4126 * table for a fast recovery from case that the current FCF 4127 * is no longer valid as we are not in the middle of FCF 4128 * failover process already. 4129 */ 4130 spin_lock_irq(&phba->hbalock); 4131 /* Mark the fast failover process in progress */ 4132 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4133 spin_unlock_irq(&phba->hbalock); 4134 4135 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4136 "2771 Start FCF fast failover process due to " 4137 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4138 "\n", acqe_fip->event_tag, acqe_fip->index); 4139 rc = lpfc_sli4_redisc_fcf_table(phba); 4140 if (rc) { 4141 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4142 LOG_DISCOVERY, 4143 "2772 Issue FCF rediscover mabilbox " 4144 "command failed, fail through to FCF " 4145 "dead event\n"); 4146 spin_lock_irq(&phba->hbalock); 4147 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4148 spin_unlock_irq(&phba->hbalock); 4149 /* 4150 * Last resort will fail over by treating this 4151 * as a link down to FCF registration. 4152 */ 4153 lpfc_sli4_fcf_dead_failthrough(phba); 4154 } else { 4155 /* Reset FCF roundrobin bmask for new discovery */ 4156 lpfc_sli4_clear_fcf_rr_bmask(phba); 4157 /* 4158 * Handling fast FCF failover to a DEAD FCF event is 4159 * considered equalivant to receiving CVL to all vports. 4160 */ 4161 lpfc_sli4_perform_all_vport_cvl(phba); 4162 } 4163 break; 4164 case LPFC_FIP_EVENT_TYPE_CVL: 4165 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4166 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4167 "2718 Clear Virtual Link Received for VPI 0x%x" 4168 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4169 4170 vport = lpfc_find_vport_by_vpid(phba, 4171 acqe_fip->index); 4172 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4173 if (!ndlp) 4174 break; 4175 active_vlink_present = 0; 4176 4177 vports = lpfc_create_vport_work_array(phba); 4178 if (vports) { 4179 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4180 i++) { 4181 if ((!(vports[i]->fc_flag & 4182 FC_VPORT_CVL_RCVD)) && 4183 (vports[i]->port_state > LPFC_FDISC)) { 4184 active_vlink_present = 1; 4185 break; 4186 } 4187 } 4188 lpfc_destroy_vport_work_array(phba, vports); 4189 } 4190 4191 if (active_vlink_present) { 4192 /* 4193 * If there are other active VLinks present, 4194 * re-instantiate the Vlink using FDISC. 4195 */ 4196 mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ); 4197 shost = lpfc_shost_from_vport(vport); 4198 spin_lock_irq(shost->host_lock); 4199 ndlp->nlp_flag |= NLP_DELAY_TMO; 4200 spin_unlock_irq(shost->host_lock); 4201 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 4202 vport->port_state = LPFC_FDISC; 4203 } else { 4204 /* 4205 * Otherwise, we request port to rediscover 4206 * the entire FCF table for a fast recovery 4207 * from possible case that the current FCF 4208 * is no longer valid if we are not already 4209 * in the FCF failover process. 4210 */ 4211 spin_lock_irq(&phba->hbalock); 4212 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4213 spin_unlock_irq(&phba->hbalock); 4214 break; 4215 } 4216 /* Mark the fast failover process in progress */ 4217 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 4218 spin_unlock_irq(&phba->hbalock); 4219 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4220 LOG_DISCOVERY, 4221 "2773 Start FCF failover per CVL, " 4222 "evt_tag:x%x\n", acqe_fip->event_tag); 4223 rc = lpfc_sli4_redisc_fcf_table(phba); 4224 if (rc) { 4225 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4226 LOG_DISCOVERY, 4227 "2774 Issue FCF rediscover " 4228 "mabilbox command failed, " 4229 "through to CVL event\n"); 4230 spin_lock_irq(&phba->hbalock); 4231 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 4232 spin_unlock_irq(&phba->hbalock); 4233 /* 4234 * Last resort will be re-try on the 4235 * the current registered FCF entry. 4236 */ 4237 lpfc_retry_pport_discovery(phba); 4238 } else 4239 /* 4240 * Reset FCF roundrobin bmask for new 4241 * discovery. 4242 */ 4243 lpfc_sli4_clear_fcf_rr_bmask(phba); 4244 } 4245 break; 4246 default: 4247 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4248 "0288 Unknown FCoE event type 0x%x event tag " 4249 "0x%x\n", event_type, acqe_fip->event_tag); 4250 break; 4251 } 4252 } 4253 4254 /** 4255 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 4256 * @phba: pointer to lpfc hba data structure. 4257 * @acqe_link: pointer to the async dcbx completion queue entry. 4258 * 4259 * This routine is to handle the SLI4 asynchronous dcbx event. 4260 **/ 4261 static void 4262 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 4263 struct lpfc_acqe_dcbx *acqe_dcbx) 4264 { 4265 phba->fc_eventTag = acqe_dcbx->event_tag; 4266 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4267 "0290 The SLI4 DCBX asynchronous event is not " 4268 "handled yet\n"); 4269 } 4270 4271 /** 4272 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 4273 * @phba: pointer to lpfc hba data structure. 4274 * @acqe_link: pointer to the async grp5 completion queue entry. 4275 * 4276 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 4277 * is an asynchronous notified of a logical link speed change. The Port 4278 * reports the logical link speed in units of 10Mbps. 4279 **/ 4280 static void 4281 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 4282 struct lpfc_acqe_grp5 *acqe_grp5) 4283 { 4284 uint16_t prev_ll_spd; 4285 4286 phba->fc_eventTag = acqe_grp5->event_tag; 4287 phba->fcoe_eventtag = acqe_grp5->event_tag; 4288 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 4289 phba->sli4_hba.link_state.logical_speed = 4290 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 4291 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4292 "2789 GRP5 Async Event: Updating logical link speed " 4293 "from %dMbps to %dMbps\n", prev_ll_spd, 4294 phba->sli4_hba.link_state.logical_speed); 4295 } 4296 4297 /** 4298 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 4299 * @phba: pointer to lpfc hba data structure. 4300 * 4301 * This routine is invoked by the worker thread to process all the pending 4302 * SLI4 asynchronous events. 4303 **/ 4304 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 4305 { 4306 struct lpfc_cq_event *cq_event; 4307 4308 /* First, declare the async event has been handled */ 4309 spin_lock_irq(&phba->hbalock); 4310 phba->hba_flag &= ~ASYNC_EVENT; 4311 spin_unlock_irq(&phba->hbalock); 4312 /* Now, handle all the async events */ 4313 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 4314 /* Get the first event from the head of the event queue */ 4315 spin_lock_irq(&phba->hbalock); 4316 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 4317 cq_event, struct lpfc_cq_event, list); 4318 spin_unlock_irq(&phba->hbalock); 4319 /* Process the asynchronous event */ 4320 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 4321 case LPFC_TRAILER_CODE_LINK: 4322 lpfc_sli4_async_link_evt(phba, 4323 &cq_event->cqe.acqe_link); 4324 break; 4325 case LPFC_TRAILER_CODE_FCOE: 4326 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 4327 break; 4328 case LPFC_TRAILER_CODE_DCBX: 4329 lpfc_sli4_async_dcbx_evt(phba, 4330 &cq_event->cqe.acqe_dcbx); 4331 break; 4332 case LPFC_TRAILER_CODE_GRP5: 4333 lpfc_sli4_async_grp5_evt(phba, 4334 &cq_event->cqe.acqe_grp5); 4335 break; 4336 case LPFC_TRAILER_CODE_FC: 4337 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 4338 break; 4339 case LPFC_TRAILER_CODE_SLI: 4340 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 4341 break; 4342 default: 4343 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4344 "1804 Invalid asynchrous event code: " 4345 "x%x\n", bf_get(lpfc_trailer_code, 4346 &cq_event->cqe.mcqe_cmpl)); 4347 break; 4348 } 4349 /* Free the completion event processed to the free pool */ 4350 lpfc_sli4_cq_event_release(phba, cq_event); 4351 } 4352 } 4353 4354 /** 4355 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 4356 * @phba: pointer to lpfc hba data structure. 4357 * 4358 * This routine is invoked by the worker thread to process FCF table 4359 * rediscovery pending completion event. 4360 **/ 4361 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 4362 { 4363 int rc; 4364 4365 spin_lock_irq(&phba->hbalock); 4366 /* Clear FCF rediscovery timeout event */ 4367 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 4368 /* Clear driver fast failover FCF record flag */ 4369 phba->fcf.failover_rec.flag = 0; 4370 /* Set state for FCF fast failover */ 4371 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 4372 spin_unlock_irq(&phba->hbalock); 4373 4374 /* Scan FCF table from the first entry to re-discover SAN */ 4375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4376 "2777 Start post-quiescent FCF table scan\n"); 4377 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 4378 if (rc) 4379 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4380 "2747 Issue FCF scan read FCF mailbox " 4381 "command failed 0x%x\n", rc); 4382 } 4383 4384 /** 4385 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 4386 * @phba: pointer to lpfc hba data structure. 4387 * @dev_grp: The HBA PCI-Device group number. 4388 * 4389 * This routine is invoked to set up the per HBA PCI-Device group function 4390 * API jump table entries. 4391 * 4392 * Return: 0 if success, otherwise -ENODEV 4393 **/ 4394 int 4395 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 4396 { 4397 int rc; 4398 4399 /* Set up lpfc PCI-device group */ 4400 phba->pci_dev_grp = dev_grp; 4401 4402 /* The LPFC_PCI_DEV_OC uses SLI4 */ 4403 if (dev_grp == LPFC_PCI_DEV_OC) 4404 phba->sli_rev = LPFC_SLI_REV4; 4405 4406 /* Set up device INIT API function jump table */ 4407 rc = lpfc_init_api_table_setup(phba, dev_grp); 4408 if (rc) 4409 return -ENODEV; 4410 /* Set up SCSI API function jump table */ 4411 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 4412 if (rc) 4413 return -ENODEV; 4414 /* Set up SLI API function jump table */ 4415 rc = lpfc_sli_api_table_setup(phba, dev_grp); 4416 if (rc) 4417 return -ENODEV; 4418 /* Set up MBOX API function jump table */ 4419 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 4420 if (rc) 4421 return -ENODEV; 4422 4423 return 0; 4424 } 4425 4426 /** 4427 * lpfc_log_intr_mode - Log the active interrupt mode 4428 * @phba: pointer to lpfc hba data structure. 4429 * @intr_mode: active interrupt mode adopted. 4430 * 4431 * This routine it invoked to log the currently used active interrupt mode 4432 * to the device. 4433 **/ 4434 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 4435 { 4436 switch (intr_mode) { 4437 case 0: 4438 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4439 "0470 Enable INTx interrupt mode.\n"); 4440 break; 4441 case 1: 4442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4443 "0481 Enabled MSI interrupt mode.\n"); 4444 break; 4445 case 2: 4446 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4447 "0480 Enabled MSI-X interrupt mode.\n"); 4448 break; 4449 default: 4450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4451 "0482 Illegal interrupt mode.\n"); 4452 break; 4453 } 4454 return; 4455 } 4456 4457 /** 4458 * lpfc_enable_pci_dev - Enable a generic PCI device. 4459 * @phba: pointer to lpfc hba data structure. 4460 * 4461 * This routine is invoked to enable the PCI device that is common to all 4462 * PCI devices. 4463 * 4464 * Return codes 4465 * 0 - successful 4466 * other values - error 4467 **/ 4468 static int 4469 lpfc_enable_pci_dev(struct lpfc_hba *phba) 4470 { 4471 struct pci_dev *pdev; 4472 int bars = 0; 4473 4474 /* Obtain PCI device reference */ 4475 if (!phba->pcidev) 4476 goto out_error; 4477 else 4478 pdev = phba->pcidev; 4479 /* Select PCI BARs */ 4480 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4481 /* Enable PCI device */ 4482 if (pci_enable_device_mem(pdev)) 4483 goto out_error; 4484 /* Request PCI resource for the device */ 4485 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME)) 4486 goto out_disable_device; 4487 /* Set up device as PCI master and save state for EEH */ 4488 pci_set_master(pdev); 4489 pci_try_set_mwi(pdev); 4490 pci_save_state(pdev); 4491 4492 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 4493 if (pci_find_capability(pdev, PCI_CAP_ID_EXP)) 4494 pdev->needs_freset = 1; 4495 4496 return 0; 4497 4498 out_disable_device: 4499 pci_disable_device(pdev); 4500 out_error: 4501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4502 "1401 Failed to enable pci device, bars:x%x\n", bars); 4503 return -ENODEV; 4504 } 4505 4506 /** 4507 * lpfc_disable_pci_dev - Disable a generic PCI device. 4508 * @phba: pointer to lpfc hba data structure. 4509 * 4510 * This routine is invoked to disable the PCI device that is common to all 4511 * PCI devices. 4512 **/ 4513 static void 4514 lpfc_disable_pci_dev(struct lpfc_hba *phba) 4515 { 4516 struct pci_dev *pdev; 4517 int bars; 4518 4519 /* Obtain PCI device reference */ 4520 if (!phba->pcidev) 4521 return; 4522 else 4523 pdev = phba->pcidev; 4524 /* Select PCI BARs */ 4525 bars = pci_select_bars(pdev, IORESOURCE_MEM); 4526 /* Release PCI resource and disable PCI device */ 4527 pci_release_selected_regions(pdev, bars); 4528 pci_disable_device(pdev); 4529 /* Null out PCI private reference to driver */ 4530 pci_set_drvdata(pdev, NULL); 4531 4532 return; 4533 } 4534 4535 /** 4536 * lpfc_reset_hba - Reset a hba 4537 * @phba: pointer to lpfc hba data structure. 4538 * 4539 * This routine is invoked to reset a hba device. It brings the HBA 4540 * offline, performs a board restart, and then brings the board back 4541 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 4542 * on outstanding mailbox commands. 4543 **/ 4544 void 4545 lpfc_reset_hba(struct lpfc_hba *phba) 4546 { 4547 /* If resets are disabled then set error state and return. */ 4548 if (!phba->cfg_enable_hba_reset) { 4549 phba->link_state = LPFC_HBA_ERROR; 4550 return; 4551 } 4552 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 4553 lpfc_offline(phba); 4554 lpfc_sli_brdrestart(phba); 4555 lpfc_online(phba); 4556 lpfc_unblock_mgmt_io(phba); 4557 } 4558 4559 /** 4560 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 4561 * @phba: pointer to lpfc hba data structure. 4562 * 4563 * This function enables the PCI SR-IOV virtual functions to a physical 4564 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4565 * enable the number of virtual functions to the physical function. As 4566 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4567 * API call does not considered as an error condition for most of the device. 4568 **/ 4569 uint16_t 4570 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 4571 { 4572 struct pci_dev *pdev = phba->pcidev; 4573 uint16_t nr_virtfn; 4574 int pos; 4575 4576 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 4577 if (pos == 0) 4578 return 0; 4579 4580 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 4581 return nr_virtfn; 4582 } 4583 4584 /** 4585 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 4586 * @phba: pointer to lpfc hba data structure. 4587 * @nr_vfn: number of virtual functions to be enabled. 4588 * 4589 * This function enables the PCI SR-IOV virtual functions to a physical 4590 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 4591 * enable the number of virtual functions to the physical function. As 4592 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 4593 * API call does not considered as an error condition for most of the device. 4594 **/ 4595 int 4596 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 4597 { 4598 struct pci_dev *pdev = phba->pcidev; 4599 uint16_t max_nr_vfn; 4600 int rc; 4601 4602 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 4603 if (nr_vfn > max_nr_vfn) { 4604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4605 "3057 Requested vfs (%d) greater than " 4606 "supported vfs (%d)", nr_vfn, max_nr_vfn); 4607 return -EINVAL; 4608 } 4609 4610 rc = pci_enable_sriov(pdev, nr_vfn); 4611 if (rc) { 4612 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4613 "2806 Failed to enable sriov on this device " 4614 "with vfn number nr_vf:%d, rc:%d\n", 4615 nr_vfn, rc); 4616 } else 4617 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4618 "2807 Successful enable sriov on this device " 4619 "with vfn number nr_vf:%d\n", nr_vfn); 4620 return rc; 4621 } 4622 4623 /** 4624 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev. 4625 * @phba: pointer to lpfc hba data structure. 4626 * 4627 * This routine is invoked to set up the driver internal resources specific to 4628 * support the SLI-3 HBA device it attached to. 4629 * 4630 * Return codes 4631 * 0 - successful 4632 * other values - error 4633 **/ 4634 static int 4635 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 4636 { 4637 struct lpfc_sli *psli; 4638 int rc; 4639 4640 /* 4641 * Initialize timers used by driver 4642 */ 4643 4644 /* Heartbeat timer */ 4645 init_timer(&phba->hb_tmofunc); 4646 phba->hb_tmofunc.function = lpfc_hb_timeout; 4647 phba->hb_tmofunc.data = (unsigned long)phba; 4648 4649 psli = &phba->sli; 4650 /* MBOX heartbeat timer */ 4651 init_timer(&psli->mbox_tmo); 4652 psli->mbox_tmo.function = lpfc_mbox_timeout; 4653 psli->mbox_tmo.data = (unsigned long) phba; 4654 /* FCP polling mode timer */ 4655 init_timer(&phba->fcp_poll_timer); 4656 phba->fcp_poll_timer.function = lpfc_poll_timeout; 4657 phba->fcp_poll_timer.data = (unsigned long) phba; 4658 /* Fabric block timer */ 4659 init_timer(&phba->fabric_block_timer); 4660 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4661 phba->fabric_block_timer.data = (unsigned long) phba; 4662 /* EA polling mode timer */ 4663 init_timer(&phba->eratt_poll); 4664 phba->eratt_poll.function = lpfc_poll_eratt; 4665 phba->eratt_poll.data = (unsigned long) phba; 4666 4667 /* Host attention work mask setup */ 4668 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 4669 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 4670 4671 /* Get all the module params for configuring this host */ 4672 lpfc_get_cfgparam(phba); 4673 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 4674 phba->menlo_flag |= HBA_MENLO_SUPPORT; 4675 /* check for menlo minimum sg count */ 4676 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 4677 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 4678 } 4679 4680 if (!phba->sli.ring) 4681 phba->sli.ring = (struct lpfc_sli_ring *) 4682 kzalloc(LPFC_SLI3_MAX_RING * 4683 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4684 if (!phba->sli.ring) 4685 return -ENOMEM; 4686 4687 /* 4688 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4689 * used to create the sg_dma_buf_pool must be dynamically calculated. 4690 * 2 segments are added since the IOCB needs a command and response bde. 4691 */ 4692 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 4693 sizeof(struct fcp_rsp) + 4694 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 4695 4696 if (phba->cfg_enable_bg) { 4697 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; 4698 phba->cfg_sg_dma_buf_size += 4699 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); 4700 } 4701 4702 /* Also reinitialize the host templates with new values. */ 4703 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4704 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 4705 4706 phba->max_vpi = LPFC_MAX_VPI; 4707 /* This will be set to correct value after config_port mbox */ 4708 phba->max_vports = 0; 4709 4710 /* 4711 * Initialize the SLI Layer to run with lpfc HBAs. 4712 */ 4713 lpfc_sli_setup(phba); 4714 lpfc_sli_queue_setup(phba); 4715 4716 /* Allocate device driver memory */ 4717 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 4718 return -ENOMEM; 4719 4720 /* 4721 * Enable sr-iov virtual functions if supported and configured 4722 * through the module parameter. 4723 */ 4724 if (phba->cfg_sriov_nr_virtfn > 0) { 4725 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 4726 phba->cfg_sriov_nr_virtfn); 4727 if (rc) { 4728 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 4729 "2808 Requested number of SR-IOV " 4730 "virtual functions (%d) is not " 4731 "supported\n", 4732 phba->cfg_sriov_nr_virtfn); 4733 phba->cfg_sriov_nr_virtfn = 0; 4734 } 4735 } 4736 4737 return 0; 4738 } 4739 4740 /** 4741 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 4742 * @phba: pointer to lpfc hba data structure. 4743 * 4744 * This routine is invoked to unset the driver internal resources set up 4745 * specific for supporting the SLI-3 HBA device it attached to. 4746 **/ 4747 static void 4748 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 4749 { 4750 /* Free device driver memory allocated */ 4751 lpfc_mem_free_all(phba); 4752 4753 return; 4754 } 4755 4756 /** 4757 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 4758 * @phba: pointer to lpfc hba data structure. 4759 * 4760 * This routine is invoked to set up the driver internal resources specific to 4761 * support the SLI-4 HBA device it attached to. 4762 * 4763 * Return codes 4764 * 0 - successful 4765 * other values - error 4766 **/ 4767 static int 4768 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 4769 { 4770 struct lpfc_sli *psli; 4771 LPFC_MBOXQ_t *mboxq; 4772 int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size; 4773 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 4774 struct lpfc_mqe *mqe; 4775 int longs, sli_family; 4776 int sges_per_segment; 4777 4778 /* Before proceed, wait for POST done and device ready */ 4779 rc = lpfc_sli4_post_status_check(phba); 4780 if (rc) 4781 return -ENODEV; 4782 4783 /* 4784 * Initialize timers used by driver 4785 */ 4786 4787 /* Heartbeat timer */ 4788 init_timer(&phba->hb_tmofunc); 4789 phba->hb_tmofunc.function = lpfc_hb_timeout; 4790 phba->hb_tmofunc.data = (unsigned long)phba; 4791 init_timer(&phba->rrq_tmr); 4792 phba->rrq_tmr.function = lpfc_rrq_timeout; 4793 phba->rrq_tmr.data = (unsigned long)phba; 4794 4795 psli = &phba->sli; 4796 /* MBOX heartbeat timer */ 4797 init_timer(&psli->mbox_tmo); 4798 psli->mbox_tmo.function = lpfc_mbox_timeout; 4799 psli->mbox_tmo.data = (unsigned long) phba; 4800 /* Fabric block timer */ 4801 init_timer(&phba->fabric_block_timer); 4802 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 4803 phba->fabric_block_timer.data = (unsigned long) phba; 4804 /* EA polling mode timer */ 4805 init_timer(&phba->eratt_poll); 4806 phba->eratt_poll.function = lpfc_poll_eratt; 4807 phba->eratt_poll.data = (unsigned long) phba; 4808 /* FCF rediscover timer */ 4809 init_timer(&phba->fcf.redisc_wait); 4810 phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; 4811 phba->fcf.redisc_wait.data = (unsigned long)phba; 4812 4813 /* 4814 * Control structure for handling external multi-buffer mailbox 4815 * command pass-through. 4816 */ 4817 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 4818 sizeof(struct lpfc_mbox_ext_buf_ctx)); 4819 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 4820 4821 /* 4822 * We need to do a READ_CONFIG mailbox command here before 4823 * calling lpfc_get_cfgparam. For VFs this will report the 4824 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings. 4825 * All of the resources allocated 4826 * for this Port are tied to these values. 4827 */ 4828 /* Get all the module params for configuring this host */ 4829 lpfc_get_cfgparam(phba); 4830 phba->max_vpi = LPFC_MAX_VPI; 4831 4832 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 4833 phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count; 4834 4835 /* This will be set to correct value after the read_config mbox */ 4836 phba->max_vports = 0; 4837 4838 /* Program the default value of vlan_id and fc_map */ 4839 phba->valid_vlan = 0; 4840 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 4841 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 4842 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 4843 4844 /* With BlockGuard we can have multiple SGEs per Data Segemnt */ 4845 sges_per_segment = 1; 4846 if (phba->cfg_enable_bg) 4847 sges_per_segment = 2; 4848 4849 /* 4850 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 4851 * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple. 4852 */ 4853 if (!phba->sli.ring) 4854 phba->sli.ring = kzalloc( 4855 (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) * 4856 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 4857 if (!phba->sli.ring) 4858 return -ENOMEM; 4859 /* 4860 * Since the sg_tablesize is module parameter, the sg_dma_buf_size 4861 * used to create the sg_dma_buf_pool must be dynamically calculated. 4862 * 2 segments are added since the IOCB needs a command and response bde. 4863 * To insure that the scsi sgl does not cross a 4k page boundary only 4864 * sgl sizes of must be a power of 2. 4865 */ 4866 buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + 4867 (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) * 4868 sizeof(struct sli4_sge))); 4869 4870 sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); 4871 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE; 4872 switch (sli_family) { 4873 case LPFC_SLI_INTF_FAMILY_BE2: 4874 case LPFC_SLI_INTF_FAMILY_BE3: 4875 /* There is a single hint for BE - 2 pages per BPL. */ 4876 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) == 4877 LPFC_SLI_INTF_SLI_HINT1_1) 4878 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE; 4879 break; 4880 case LPFC_SLI_INTF_FAMILY_LNCR_A0: 4881 case LPFC_SLI_INTF_FAMILY_LNCR_B0: 4882 default: 4883 break; 4884 } 4885 4886 for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE; 4887 dma_buf_size < max_buf_size && buf_size > dma_buf_size; 4888 dma_buf_size = dma_buf_size << 1) 4889 ; 4890 if (dma_buf_size == max_buf_size) 4891 phba->cfg_sg_seg_cnt = (dma_buf_size - 4892 sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) - 4893 (2 * sizeof(struct sli4_sge))) / 4894 sizeof(struct sli4_sge); 4895 phba->cfg_sg_dma_buf_size = dma_buf_size; 4896 4897 /* Initialize buffer queue management fields */ 4898 hbq_count = lpfc_sli_hbq_count(); 4899 for (i = 0; i < hbq_count; ++i) 4900 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 4901 INIT_LIST_HEAD(&phba->rb_pend_list); 4902 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 4903 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 4904 4905 /* 4906 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 4907 */ 4908 /* Initialize the Abort scsi buffer list used by driver */ 4909 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 4910 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 4911 /* This abort list used by worker thread */ 4912 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock); 4913 4914 /* 4915 * Initialize driver internal slow-path work queues 4916 */ 4917 4918 /* Driver internel slow-path CQ Event pool */ 4919 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 4920 /* Response IOCB work queue list */ 4921 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 4922 /* Asynchronous event CQ Event work queue list */ 4923 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 4924 /* Fast-path XRI aborted CQ Event work queue list */ 4925 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 4926 /* Slow-path XRI aborted CQ Event work queue list */ 4927 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 4928 /* Receive queue CQ Event work queue list */ 4929 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 4930 4931 /* Initialize extent block lists. */ 4932 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 4933 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 4934 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 4935 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 4936 4937 /* Initialize the driver internal SLI layer lists. */ 4938 lpfc_sli_setup(phba); 4939 lpfc_sli_queue_setup(phba); 4940 4941 /* Allocate device driver memory */ 4942 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 4943 if (rc) 4944 return -ENOMEM; 4945 4946 /* IF Type 2 ports get initialized now. */ 4947 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4948 LPFC_SLI_INTF_IF_TYPE_2) { 4949 rc = lpfc_pci_function_reset(phba); 4950 if (unlikely(rc)) 4951 return -ENODEV; 4952 } 4953 4954 /* Create the bootstrap mailbox command */ 4955 rc = lpfc_create_bootstrap_mbox(phba); 4956 if (unlikely(rc)) 4957 goto out_free_mem; 4958 4959 /* Set up the host's endian order with the device. */ 4960 rc = lpfc_setup_endian_order(phba); 4961 if (unlikely(rc)) 4962 goto out_free_bsmbx; 4963 4964 /* Set up the hba's configuration parameters. */ 4965 rc = lpfc_sli4_read_config(phba); 4966 if (unlikely(rc)) 4967 goto out_free_bsmbx; 4968 4969 /* IF Type 0 ports get initialized now. */ 4970 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 4971 LPFC_SLI_INTF_IF_TYPE_0) { 4972 rc = lpfc_pci_function_reset(phba); 4973 if (unlikely(rc)) 4974 goto out_free_bsmbx; 4975 } 4976 4977 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 4978 GFP_KERNEL); 4979 if (!mboxq) { 4980 rc = -ENOMEM; 4981 goto out_free_bsmbx; 4982 } 4983 4984 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 4985 lpfc_supported_pages(mboxq); 4986 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 4987 if (!rc) { 4988 mqe = &mboxq->u.mqe; 4989 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 4990 LPFC_MAX_SUPPORTED_PAGES); 4991 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 4992 switch (pn_page[i]) { 4993 case LPFC_SLI4_PARAMETERS: 4994 phba->sli4_hba.pc_sli4_params.supported = 1; 4995 break; 4996 default: 4997 break; 4998 } 4999 } 5000 /* Read the port's SLI4 Parameters capabilities if supported. */ 5001 if (phba->sli4_hba.pc_sli4_params.supported) 5002 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5003 if (rc) { 5004 mempool_free(mboxq, phba->mbox_mem_pool); 5005 rc = -EIO; 5006 goto out_free_bsmbx; 5007 } 5008 } 5009 /* 5010 * Get sli4 parameters that override parameters from Port capabilities. 5011 * If this call fails, it isn't critical unless the SLI4 parameters come 5012 * back in conflict. 5013 */ 5014 rc = lpfc_get_sli4_parameters(phba, mboxq); 5015 if (rc) { 5016 if (phba->sli4_hba.extents_in_use && 5017 phba->sli4_hba.rpi_hdrs_in_use) { 5018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5019 "2999 Unsupported SLI4 Parameters " 5020 "Extents and RPI headers enabled.\n"); 5021 goto out_free_bsmbx; 5022 } 5023 } 5024 mempool_free(mboxq, phba->mbox_mem_pool); 5025 /* Verify all the SLI4 queues */ 5026 rc = lpfc_sli4_queue_verify(phba); 5027 if (rc) 5028 goto out_free_bsmbx; 5029 5030 /* Create driver internal CQE event pool */ 5031 rc = lpfc_sli4_cq_event_pool_create(phba); 5032 if (rc) 5033 goto out_free_bsmbx; 5034 5035 /* Initialize sgl lists per host */ 5036 lpfc_init_sgl_list(phba); 5037 5038 /* Allocate and initialize active sgl array */ 5039 rc = lpfc_init_active_sgl_array(phba); 5040 if (rc) { 5041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5042 "1430 Failed to initialize sgl list.\n"); 5043 goto out_destroy_cq_event_pool; 5044 } 5045 rc = lpfc_sli4_init_rpi_hdrs(phba); 5046 if (rc) { 5047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5048 "1432 Failed to initialize rpi headers.\n"); 5049 goto out_free_active_sgl; 5050 } 5051 5052 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 5053 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 5054 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 5055 GFP_KERNEL); 5056 if (!phba->fcf.fcf_rr_bmask) { 5057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5058 "2759 Failed allocate memory for FCF round " 5059 "robin failover bmask\n"); 5060 rc = -ENOMEM; 5061 goto out_remove_rpi_hdrs; 5062 } 5063 5064 phba->sli4_hba.fcp_eq_hdl = 5065 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) * 5066 phba->cfg_fcp_io_channel), GFP_KERNEL); 5067 if (!phba->sli4_hba.fcp_eq_hdl) { 5068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5069 "2572 Failed allocate memory for " 5070 "fast-path per-EQ handle array\n"); 5071 rc = -ENOMEM; 5072 goto out_free_fcf_rr_bmask; 5073 } 5074 5075 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) * 5076 phba->cfg_fcp_io_channel), GFP_KERNEL); 5077 if (!phba->sli4_hba.msix_entries) { 5078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5079 "2573 Failed allocate memory for msi-x " 5080 "interrupt vector entries\n"); 5081 rc = -ENOMEM; 5082 goto out_free_fcp_eq_hdl; 5083 } 5084 5085 /* 5086 * Enable sr-iov virtual functions if supported and configured 5087 * through the module parameter. 5088 */ 5089 if (phba->cfg_sriov_nr_virtfn > 0) { 5090 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5091 phba->cfg_sriov_nr_virtfn); 5092 if (rc) { 5093 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5094 "3020 Requested number of SR-IOV " 5095 "virtual functions (%d) is not " 5096 "supported\n", 5097 phba->cfg_sriov_nr_virtfn); 5098 phba->cfg_sriov_nr_virtfn = 0; 5099 } 5100 } 5101 5102 return 0; 5103 5104 out_free_fcp_eq_hdl: 5105 kfree(phba->sli4_hba.fcp_eq_hdl); 5106 out_free_fcf_rr_bmask: 5107 kfree(phba->fcf.fcf_rr_bmask); 5108 out_remove_rpi_hdrs: 5109 lpfc_sli4_remove_rpi_hdrs(phba); 5110 out_free_active_sgl: 5111 lpfc_free_active_sgl(phba); 5112 out_destroy_cq_event_pool: 5113 lpfc_sli4_cq_event_pool_destroy(phba); 5114 out_free_bsmbx: 5115 lpfc_destroy_bootstrap_mbox(phba); 5116 out_free_mem: 5117 lpfc_mem_free(phba); 5118 return rc; 5119 } 5120 5121 /** 5122 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 5123 * @phba: pointer to lpfc hba data structure. 5124 * 5125 * This routine is invoked to unset the driver internal resources set up 5126 * specific for supporting the SLI-4 HBA device it attached to. 5127 **/ 5128 static void 5129 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 5130 { 5131 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 5132 5133 /* Free memory allocated for msi-x interrupt vector entries */ 5134 kfree(phba->sli4_hba.msix_entries); 5135 5136 /* Free memory allocated for fast-path work queue handles */ 5137 kfree(phba->sli4_hba.fcp_eq_hdl); 5138 5139 /* Free the allocated rpi headers. */ 5140 lpfc_sli4_remove_rpi_hdrs(phba); 5141 lpfc_sli4_remove_rpis(phba); 5142 5143 /* Free eligible FCF index bmask */ 5144 kfree(phba->fcf.fcf_rr_bmask); 5145 5146 /* Free the ELS sgl list */ 5147 lpfc_free_active_sgl(phba); 5148 lpfc_free_els_sgl_list(phba); 5149 5150 /* Free the completion queue EQ event pool */ 5151 lpfc_sli4_cq_event_release_all(phba); 5152 lpfc_sli4_cq_event_pool_destroy(phba); 5153 5154 /* Release resource identifiers. */ 5155 lpfc_sli4_dealloc_resource_identifiers(phba); 5156 5157 /* Free the bsmbx region. */ 5158 lpfc_destroy_bootstrap_mbox(phba); 5159 5160 /* Free the SLI Layer memory with SLI4 HBAs */ 5161 lpfc_mem_free_all(phba); 5162 5163 /* Free the current connect table */ 5164 list_for_each_entry_safe(conn_entry, next_conn_entry, 5165 &phba->fcf_conn_rec_list, list) { 5166 list_del_init(&conn_entry->list); 5167 kfree(conn_entry); 5168 } 5169 5170 return; 5171 } 5172 5173 /** 5174 * lpfc_init_api_table_setup - Set up init api function jump table 5175 * @phba: The hba struct for which this call is being executed. 5176 * @dev_grp: The HBA PCI-Device group number. 5177 * 5178 * This routine sets up the device INIT interface API function jump table 5179 * in @phba struct. 5180 * 5181 * Returns: 0 - success, -ENODEV - failure. 5182 **/ 5183 int 5184 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5185 { 5186 phba->lpfc_hba_init_link = lpfc_hba_init_link; 5187 phba->lpfc_hba_down_link = lpfc_hba_down_link; 5188 phba->lpfc_selective_reset = lpfc_selective_reset; 5189 switch (dev_grp) { 5190 case LPFC_PCI_DEV_LP: 5191 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 5192 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 5193 phba->lpfc_stop_port = lpfc_stop_port_s3; 5194 break; 5195 case LPFC_PCI_DEV_OC: 5196 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 5197 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 5198 phba->lpfc_stop_port = lpfc_stop_port_s4; 5199 break; 5200 default: 5201 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5202 "1431 Invalid HBA PCI-device group: 0x%x\n", 5203 dev_grp); 5204 return -ENODEV; 5205 break; 5206 } 5207 return 0; 5208 } 5209 5210 /** 5211 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5212 * @phba: pointer to lpfc hba data structure. 5213 * 5214 * This routine is invoked to set up the driver internal resources before the 5215 * device specific resource setup to support the HBA device it attached to. 5216 * 5217 * Return codes 5218 * 0 - successful 5219 * other values - error 5220 **/ 5221 static int 5222 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5223 { 5224 /* 5225 * Driver resources common to all SLI revisions 5226 */ 5227 atomic_set(&phba->fast_event_count, 0); 5228 spin_lock_init(&phba->hbalock); 5229 5230 /* Initialize ndlp management spinlock */ 5231 spin_lock_init(&phba->ndlp_lock); 5232 5233 INIT_LIST_HEAD(&phba->port_list); 5234 INIT_LIST_HEAD(&phba->work_list); 5235 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5236 5237 /* Initialize the wait queue head for the kernel thread */ 5238 init_waitqueue_head(&phba->work_waitq); 5239 5240 /* Initialize the scsi buffer list used by driver for scsi IO */ 5241 spin_lock_init(&phba->scsi_buf_list_lock); 5242 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 5243 5244 /* Initialize the fabric iocb list */ 5245 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5246 5247 /* Initialize list to save ELS buffers */ 5248 INIT_LIST_HEAD(&phba->elsbuf); 5249 5250 /* Initialize FCF connection rec list */ 5251 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5252 5253 return 0; 5254 } 5255 5256 /** 5257 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 5258 * @phba: pointer to lpfc hba data structure. 5259 * 5260 * This routine is invoked to set up the driver internal resources after the 5261 * device specific resource setup to support the HBA device it attached to. 5262 * 5263 * Return codes 5264 * 0 - successful 5265 * other values - error 5266 **/ 5267 static int 5268 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 5269 { 5270 int error; 5271 5272 /* Startup the kernel thread for this host adapter. */ 5273 phba->worker_thread = kthread_run(lpfc_do_work, phba, 5274 "lpfc_worker_%d", phba->brd_no); 5275 if (IS_ERR(phba->worker_thread)) { 5276 error = PTR_ERR(phba->worker_thread); 5277 return error; 5278 } 5279 5280 return 0; 5281 } 5282 5283 /** 5284 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 5285 * @phba: pointer to lpfc hba data structure. 5286 * 5287 * This routine is invoked to unset the driver internal resources set up after 5288 * the device specific resource setup for supporting the HBA device it 5289 * attached to. 5290 **/ 5291 static void 5292 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 5293 { 5294 /* Stop kernel worker thread */ 5295 kthread_stop(phba->worker_thread); 5296 } 5297 5298 /** 5299 * lpfc_free_iocb_list - Free iocb list. 5300 * @phba: pointer to lpfc hba data structure. 5301 * 5302 * This routine is invoked to free the driver's IOCB list and memory. 5303 **/ 5304 static void 5305 lpfc_free_iocb_list(struct lpfc_hba *phba) 5306 { 5307 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 5308 5309 spin_lock_irq(&phba->hbalock); 5310 list_for_each_entry_safe(iocbq_entry, iocbq_next, 5311 &phba->lpfc_iocb_list, list) { 5312 list_del(&iocbq_entry->list); 5313 kfree(iocbq_entry); 5314 phba->total_iocbq_bufs--; 5315 } 5316 spin_unlock_irq(&phba->hbalock); 5317 5318 return; 5319 } 5320 5321 /** 5322 * lpfc_init_iocb_list - Allocate and initialize iocb list. 5323 * @phba: pointer to lpfc hba data structure. 5324 * 5325 * This routine is invoked to allocate and initizlize the driver's IOCB 5326 * list and set up the IOCB tag array accordingly. 5327 * 5328 * Return codes 5329 * 0 - successful 5330 * other values - error 5331 **/ 5332 static int 5333 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 5334 { 5335 struct lpfc_iocbq *iocbq_entry = NULL; 5336 uint16_t iotag; 5337 int i; 5338 5339 /* Initialize and populate the iocb list per host. */ 5340 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 5341 for (i = 0; i < iocb_count; i++) { 5342 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 5343 if (iocbq_entry == NULL) { 5344 printk(KERN_ERR "%s: only allocated %d iocbs of " 5345 "expected %d count. Unloading driver.\n", 5346 __func__, i, LPFC_IOCB_LIST_CNT); 5347 goto out_free_iocbq; 5348 } 5349 5350 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 5351 if (iotag == 0) { 5352 kfree(iocbq_entry); 5353 printk(KERN_ERR "%s: failed to allocate IOTAG. " 5354 "Unloading driver.\n", __func__); 5355 goto out_free_iocbq; 5356 } 5357 iocbq_entry->sli4_lxritag = NO_XRI; 5358 iocbq_entry->sli4_xritag = NO_XRI; 5359 5360 spin_lock_irq(&phba->hbalock); 5361 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 5362 phba->total_iocbq_bufs++; 5363 spin_unlock_irq(&phba->hbalock); 5364 } 5365 5366 return 0; 5367 5368 out_free_iocbq: 5369 lpfc_free_iocb_list(phba); 5370 5371 return -ENOMEM; 5372 } 5373 5374 /** 5375 * lpfc_free_sgl_list - Free a given sgl list. 5376 * @phba: pointer to lpfc hba data structure. 5377 * @sglq_list: pointer to the head of sgl list. 5378 * 5379 * This routine is invoked to free a give sgl list and memory. 5380 **/ 5381 void 5382 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 5383 { 5384 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 5385 5386 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 5387 list_del(&sglq_entry->list); 5388 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 5389 kfree(sglq_entry); 5390 } 5391 } 5392 5393 /** 5394 * lpfc_free_els_sgl_list - Free els sgl list. 5395 * @phba: pointer to lpfc hba data structure. 5396 * 5397 * This routine is invoked to free the driver's els sgl list and memory. 5398 **/ 5399 static void 5400 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 5401 { 5402 LIST_HEAD(sglq_list); 5403 5404 /* Retrieve all els sgls from driver list */ 5405 spin_lock_irq(&phba->hbalock); 5406 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list); 5407 spin_unlock_irq(&phba->hbalock); 5408 5409 /* Now free the sgl list */ 5410 lpfc_free_sgl_list(phba, &sglq_list); 5411 } 5412 5413 /** 5414 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 5415 * @phba: pointer to lpfc hba data structure. 5416 * 5417 * This routine is invoked to allocate the driver's active sgl memory. 5418 * This array will hold the sglq_entry's for active IOs. 5419 **/ 5420 static int 5421 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 5422 { 5423 int size; 5424 size = sizeof(struct lpfc_sglq *); 5425 size *= phba->sli4_hba.max_cfg_param.max_xri; 5426 5427 phba->sli4_hba.lpfc_sglq_active_list = 5428 kzalloc(size, GFP_KERNEL); 5429 if (!phba->sli4_hba.lpfc_sglq_active_list) 5430 return -ENOMEM; 5431 return 0; 5432 } 5433 5434 /** 5435 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 5436 * @phba: pointer to lpfc hba data structure. 5437 * 5438 * This routine is invoked to walk through the array of active sglq entries 5439 * and free all of the resources. 5440 * This is just a place holder for now. 5441 **/ 5442 static void 5443 lpfc_free_active_sgl(struct lpfc_hba *phba) 5444 { 5445 kfree(phba->sli4_hba.lpfc_sglq_active_list); 5446 } 5447 5448 /** 5449 * lpfc_init_sgl_list - Allocate and initialize sgl list. 5450 * @phba: pointer to lpfc hba data structure. 5451 * 5452 * This routine is invoked to allocate and initizlize the driver's sgl 5453 * list and set up the sgl xritag tag array accordingly. 5454 * 5455 **/ 5456 static void 5457 lpfc_init_sgl_list(struct lpfc_hba *phba) 5458 { 5459 /* Initialize and populate the sglq list per host/VF. */ 5460 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list); 5461 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 5462 5463 /* els xri-sgl book keeping */ 5464 phba->sli4_hba.els_xri_cnt = 0; 5465 5466 /* scsi xri-buffer book keeping */ 5467 phba->sli4_hba.scsi_xri_cnt = 0; 5468 } 5469 5470 /** 5471 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 5472 * @phba: pointer to lpfc hba data structure. 5473 * 5474 * This routine is invoked to post rpi header templates to the 5475 * port for those SLI4 ports that do not support extents. This routine 5476 * posts a PAGE_SIZE memory region to the port to hold up to 5477 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 5478 * and should be called only when interrupts are disabled. 5479 * 5480 * Return codes 5481 * 0 - successful 5482 * -ERROR - otherwise. 5483 **/ 5484 int 5485 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 5486 { 5487 int rc = 0; 5488 struct lpfc_rpi_hdr *rpi_hdr; 5489 5490 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 5491 if (!phba->sli4_hba.rpi_hdrs_in_use) 5492 return rc; 5493 if (phba->sli4_hba.extents_in_use) 5494 return -EIO; 5495 5496 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 5497 if (!rpi_hdr) { 5498 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 5499 "0391 Error during rpi post operation\n"); 5500 lpfc_sli4_remove_rpis(phba); 5501 rc = -ENODEV; 5502 } 5503 5504 return rc; 5505 } 5506 5507 /** 5508 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 5509 * @phba: pointer to lpfc hba data structure. 5510 * 5511 * This routine is invoked to allocate a single 4KB memory region to 5512 * support rpis and stores them in the phba. This single region 5513 * provides support for up to 64 rpis. The region is used globally 5514 * by the device. 5515 * 5516 * Returns: 5517 * A valid rpi hdr on success. 5518 * A NULL pointer on any failure. 5519 **/ 5520 struct lpfc_rpi_hdr * 5521 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 5522 { 5523 uint16_t rpi_limit, curr_rpi_range; 5524 struct lpfc_dmabuf *dmabuf; 5525 struct lpfc_rpi_hdr *rpi_hdr; 5526 uint32_t rpi_count; 5527 5528 /* 5529 * If the SLI4 port supports extents, posting the rpi header isn't 5530 * required. Set the expected maximum count and let the actual value 5531 * get set when extents are fully allocated. 5532 */ 5533 if (!phba->sli4_hba.rpi_hdrs_in_use) 5534 return NULL; 5535 if (phba->sli4_hba.extents_in_use) 5536 return NULL; 5537 5538 /* The limit on the logical index is just the max_rpi count. */ 5539 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 5540 phba->sli4_hba.max_cfg_param.max_rpi - 1; 5541 5542 spin_lock_irq(&phba->hbalock); 5543 /* 5544 * Establish the starting RPI in this header block. The starting 5545 * rpi is normalized to a zero base because the physical rpi is 5546 * port based. 5547 */ 5548 curr_rpi_range = phba->sli4_hba.next_rpi; 5549 spin_unlock_irq(&phba->hbalock); 5550 5551 /* 5552 * The port has a limited number of rpis. The increment here 5553 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 5554 * and to allow the full max_rpi range per port. 5555 */ 5556 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 5557 rpi_count = rpi_limit - curr_rpi_range; 5558 else 5559 rpi_count = LPFC_RPI_HDR_COUNT; 5560 5561 if (!rpi_count) 5562 return NULL; 5563 /* 5564 * First allocate the protocol header region for the port. The 5565 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 5566 */ 5567 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 5568 if (!dmabuf) 5569 return NULL; 5570 5571 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 5572 LPFC_HDR_TEMPLATE_SIZE, 5573 &dmabuf->phys, 5574 GFP_KERNEL); 5575 if (!dmabuf->virt) { 5576 rpi_hdr = NULL; 5577 goto err_free_dmabuf; 5578 } 5579 5580 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE); 5581 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 5582 rpi_hdr = NULL; 5583 goto err_free_coherent; 5584 } 5585 5586 /* Save the rpi header data for cleanup later. */ 5587 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 5588 if (!rpi_hdr) 5589 goto err_free_coherent; 5590 5591 rpi_hdr->dmabuf = dmabuf; 5592 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 5593 rpi_hdr->page_count = 1; 5594 spin_lock_irq(&phba->hbalock); 5595 5596 /* The rpi_hdr stores the logical index only. */ 5597 rpi_hdr->start_rpi = curr_rpi_range; 5598 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 5599 5600 /* 5601 * The next_rpi stores the next logical module-64 rpi value used 5602 * to post physical rpis in subsequent rpi postings. 5603 */ 5604 phba->sli4_hba.next_rpi += rpi_count; 5605 spin_unlock_irq(&phba->hbalock); 5606 return rpi_hdr; 5607 5608 err_free_coherent: 5609 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 5610 dmabuf->virt, dmabuf->phys); 5611 err_free_dmabuf: 5612 kfree(dmabuf); 5613 return NULL; 5614 } 5615 5616 /** 5617 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 5618 * @phba: pointer to lpfc hba data structure. 5619 * 5620 * This routine is invoked to remove all memory resources allocated 5621 * to support rpis for SLI4 ports not supporting extents. This routine 5622 * presumes the caller has released all rpis consumed by fabric or port 5623 * logins and is prepared to have the header pages removed. 5624 **/ 5625 void 5626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 5627 { 5628 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 5629 5630 if (!phba->sli4_hba.rpi_hdrs_in_use) 5631 goto exit; 5632 5633 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 5634 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 5635 list_del(&rpi_hdr->list); 5636 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 5637 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 5638 kfree(rpi_hdr->dmabuf); 5639 kfree(rpi_hdr); 5640 } 5641 exit: 5642 /* There are no rpis available to the port now. */ 5643 phba->sli4_hba.next_rpi = 0; 5644 } 5645 5646 /** 5647 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 5648 * @pdev: pointer to pci device data structure. 5649 * 5650 * This routine is invoked to allocate the driver hba data structure for an 5651 * HBA device. If the allocation is successful, the phba reference to the 5652 * PCI device data structure is set. 5653 * 5654 * Return codes 5655 * pointer to @phba - successful 5656 * NULL - error 5657 **/ 5658 static struct lpfc_hba * 5659 lpfc_hba_alloc(struct pci_dev *pdev) 5660 { 5661 struct lpfc_hba *phba; 5662 5663 /* Allocate memory for HBA structure */ 5664 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 5665 if (!phba) { 5666 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 5667 return NULL; 5668 } 5669 5670 /* Set reference to PCI device in HBA structure */ 5671 phba->pcidev = pdev; 5672 5673 /* Assign an unused board number */ 5674 phba->brd_no = lpfc_get_instance(); 5675 if (phba->brd_no < 0) { 5676 kfree(phba); 5677 return NULL; 5678 } 5679 5680 spin_lock_init(&phba->ct_ev_lock); 5681 INIT_LIST_HEAD(&phba->ct_ev_waiters); 5682 5683 return phba; 5684 } 5685 5686 /** 5687 * lpfc_hba_free - Free driver hba data structure with a device. 5688 * @phba: pointer to lpfc hba data structure. 5689 * 5690 * This routine is invoked to free the driver hba data structure with an 5691 * HBA device. 5692 **/ 5693 static void 5694 lpfc_hba_free(struct lpfc_hba *phba) 5695 { 5696 /* Release the driver assigned board number */ 5697 idr_remove(&lpfc_hba_index, phba->brd_no); 5698 5699 /* Free memory allocated with sli rings */ 5700 kfree(phba->sli.ring); 5701 phba->sli.ring = NULL; 5702 5703 kfree(phba); 5704 return; 5705 } 5706 5707 /** 5708 * lpfc_create_shost - Create hba physical port with associated scsi host. 5709 * @phba: pointer to lpfc hba data structure. 5710 * 5711 * This routine is invoked to create HBA physical port and associate a SCSI 5712 * host with it. 5713 * 5714 * Return codes 5715 * 0 - successful 5716 * other values - error 5717 **/ 5718 static int 5719 lpfc_create_shost(struct lpfc_hba *phba) 5720 { 5721 struct lpfc_vport *vport; 5722 struct Scsi_Host *shost; 5723 5724 /* Initialize HBA FC structure */ 5725 phba->fc_edtov = FF_DEF_EDTOV; 5726 phba->fc_ratov = FF_DEF_RATOV; 5727 phba->fc_altov = FF_DEF_ALTOV; 5728 phba->fc_arbtov = FF_DEF_ARBTOV; 5729 5730 atomic_set(&phba->sdev_cnt, 0); 5731 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 5732 if (!vport) 5733 return -ENODEV; 5734 5735 shost = lpfc_shost_from_vport(vport); 5736 phba->pport = vport; 5737 lpfc_debugfs_initialize(vport); 5738 /* Put reference to SCSI host to driver's device private data */ 5739 pci_set_drvdata(phba->pcidev, shost); 5740 5741 return 0; 5742 } 5743 5744 /** 5745 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 5746 * @phba: pointer to lpfc hba data structure. 5747 * 5748 * This routine is invoked to destroy HBA physical port and the associated 5749 * SCSI host. 5750 **/ 5751 static void 5752 lpfc_destroy_shost(struct lpfc_hba *phba) 5753 { 5754 struct lpfc_vport *vport = phba->pport; 5755 5756 /* Destroy physical port that associated with the SCSI host */ 5757 destroy_port(vport); 5758 5759 return; 5760 } 5761 5762 /** 5763 * lpfc_setup_bg - Setup Block guard structures and debug areas. 5764 * @phba: pointer to lpfc hba data structure. 5765 * @shost: the shost to be used to detect Block guard settings. 5766 * 5767 * This routine sets up the local Block guard protocol settings for @shost. 5768 * This routine also allocates memory for debugging bg buffers. 5769 **/ 5770 static void 5771 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 5772 { 5773 uint32_t old_mask; 5774 uint32_t old_guard; 5775 5776 int pagecnt = 10; 5777 if (lpfc_prot_mask && lpfc_prot_guard) { 5778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5779 "1478 Registering BlockGuard with the " 5780 "SCSI layer\n"); 5781 5782 old_mask = lpfc_prot_mask; 5783 old_guard = lpfc_prot_guard; 5784 5785 /* Only allow supported values */ 5786 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 5787 SHOST_DIX_TYPE0_PROTECTION | 5788 SHOST_DIX_TYPE1_PROTECTION); 5789 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); 5790 5791 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 5792 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 5793 lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 5794 5795 if (lpfc_prot_mask && lpfc_prot_guard) { 5796 if ((old_mask != lpfc_prot_mask) || 5797 (old_guard != lpfc_prot_guard)) 5798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5799 "1475 Registering BlockGuard with the " 5800 "SCSI layer: mask %d guard %d\n", 5801 lpfc_prot_mask, lpfc_prot_guard); 5802 5803 scsi_host_set_prot(shost, lpfc_prot_mask); 5804 scsi_host_set_guard(shost, lpfc_prot_guard); 5805 } else 5806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5807 "1479 Not Registering BlockGuard with the SCSI " 5808 "layer, Bad protection parameters: %d %d\n", 5809 old_mask, old_guard); 5810 } 5811 5812 if (!_dump_buf_data) { 5813 while (pagecnt) { 5814 spin_lock_init(&_dump_buf_lock); 5815 _dump_buf_data = 5816 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5817 if (_dump_buf_data) { 5818 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5819 "9043 BLKGRD: allocated %d pages for " 5820 "_dump_buf_data at 0x%p\n", 5821 (1 << pagecnt), _dump_buf_data); 5822 _dump_buf_data_order = pagecnt; 5823 memset(_dump_buf_data, 0, 5824 ((1 << PAGE_SHIFT) << pagecnt)); 5825 break; 5826 } else 5827 --pagecnt; 5828 } 5829 if (!_dump_buf_data_order) 5830 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5831 "9044 BLKGRD: ERROR unable to allocate " 5832 "memory for hexdump\n"); 5833 } else 5834 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5835 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 5836 "\n", _dump_buf_data); 5837 if (!_dump_buf_dif) { 5838 while (pagecnt) { 5839 _dump_buf_dif = 5840 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 5841 if (_dump_buf_dif) { 5842 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5843 "9046 BLKGRD: allocated %d pages for " 5844 "_dump_buf_dif at 0x%p\n", 5845 (1 << pagecnt), _dump_buf_dif); 5846 _dump_buf_dif_order = pagecnt; 5847 memset(_dump_buf_dif, 0, 5848 ((1 << PAGE_SHIFT) << pagecnt)); 5849 break; 5850 } else 5851 --pagecnt; 5852 } 5853 if (!_dump_buf_dif_order) 5854 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5855 "9047 BLKGRD: ERROR unable to allocate " 5856 "memory for hexdump\n"); 5857 } else 5858 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 5859 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 5860 _dump_buf_dif); 5861 } 5862 5863 /** 5864 * lpfc_post_init_setup - Perform necessary device post initialization setup. 5865 * @phba: pointer to lpfc hba data structure. 5866 * 5867 * This routine is invoked to perform all the necessary post initialization 5868 * setup for the device. 5869 **/ 5870 static void 5871 lpfc_post_init_setup(struct lpfc_hba *phba) 5872 { 5873 struct Scsi_Host *shost; 5874 struct lpfc_adapter_event_header adapter_event; 5875 5876 /* Get the default values for Model Name and Description */ 5877 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 5878 5879 /* 5880 * hba setup may have changed the hba_queue_depth so we need to 5881 * adjust the value of can_queue. 5882 */ 5883 shost = pci_get_drvdata(phba->pcidev); 5884 shost->can_queue = phba->cfg_hba_queue_depth - 10; 5885 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 5886 lpfc_setup_bg(phba, shost); 5887 5888 lpfc_host_attrib_init(shost); 5889 5890 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 5891 spin_lock_irq(shost->host_lock); 5892 lpfc_poll_start_timer(phba); 5893 spin_unlock_irq(shost->host_lock); 5894 } 5895 5896 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5897 "0428 Perform SCSI scan\n"); 5898 /* Send board arrival event to upper layer */ 5899 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 5900 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 5901 fc_host_post_vendor_event(shost, fc_get_event_number(), 5902 sizeof(adapter_event), 5903 (char *) &adapter_event, 5904 LPFC_NL_VENDOR_ID); 5905 return; 5906 } 5907 5908 /** 5909 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 5910 * @phba: pointer to lpfc hba data structure. 5911 * 5912 * This routine is invoked to set up the PCI device memory space for device 5913 * with SLI-3 interface spec. 5914 * 5915 * Return codes 5916 * 0 - successful 5917 * other values - error 5918 **/ 5919 static int 5920 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 5921 { 5922 struct pci_dev *pdev; 5923 unsigned long bar0map_len, bar2map_len; 5924 int i, hbq_count; 5925 void *ptr; 5926 int error = -ENODEV; 5927 5928 /* Obtain PCI device reference */ 5929 if (!phba->pcidev) 5930 return error; 5931 else 5932 pdev = phba->pcidev; 5933 5934 /* Set the device DMA mask size */ 5935 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 5936 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 5937 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 5938 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 5939 return error; 5940 } 5941 } 5942 5943 /* Get the bus address of Bar0 and Bar2 and the number of bytes 5944 * required by each mapping. 5945 */ 5946 phba->pci_bar0_map = pci_resource_start(pdev, 0); 5947 bar0map_len = pci_resource_len(pdev, 0); 5948 5949 phba->pci_bar2_map = pci_resource_start(pdev, 2); 5950 bar2map_len = pci_resource_len(pdev, 2); 5951 5952 /* Map HBA SLIM to a kernel virtual address. */ 5953 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 5954 if (!phba->slim_memmap_p) { 5955 dev_printk(KERN_ERR, &pdev->dev, 5956 "ioremap failed for SLIM memory.\n"); 5957 goto out; 5958 } 5959 5960 /* Map HBA Control Registers to a kernel virtual address. */ 5961 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 5962 if (!phba->ctrl_regs_memmap_p) { 5963 dev_printk(KERN_ERR, &pdev->dev, 5964 "ioremap failed for HBA control registers.\n"); 5965 goto out_iounmap_slim; 5966 } 5967 5968 /* Allocate memory for SLI-2 structures */ 5969 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, 5970 SLI2_SLIM_SIZE, 5971 &phba->slim2p.phys, 5972 GFP_KERNEL); 5973 if (!phba->slim2p.virt) 5974 goto out_iounmap; 5975 5976 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 5977 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 5978 phba->mbox_ext = (phba->slim2p.virt + 5979 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 5980 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 5981 phba->IOCBs = (phba->slim2p.virt + 5982 offsetof(struct lpfc_sli2_slim, IOCBs)); 5983 5984 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 5985 lpfc_sli_hbq_size(), 5986 &phba->hbqslimp.phys, 5987 GFP_KERNEL); 5988 if (!phba->hbqslimp.virt) 5989 goto out_free_slim; 5990 5991 hbq_count = lpfc_sli_hbq_count(); 5992 ptr = phba->hbqslimp.virt; 5993 for (i = 0; i < hbq_count; ++i) { 5994 phba->hbqs[i].hbq_virt = ptr; 5995 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 5996 ptr += (lpfc_hbq_defs[i]->entry_count * 5997 sizeof(struct lpfc_hbq_entry)); 5998 } 5999 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6000 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6001 6002 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6003 6004 INIT_LIST_HEAD(&phba->rb_pend_list); 6005 6006 phba->MBslimaddr = phba->slim_memmap_p; 6007 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6008 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6009 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6010 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6011 6012 return 0; 6013 6014 out_free_slim: 6015 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6016 phba->slim2p.virt, phba->slim2p.phys); 6017 out_iounmap: 6018 iounmap(phba->ctrl_regs_memmap_p); 6019 out_iounmap_slim: 6020 iounmap(phba->slim_memmap_p); 6021 out: 6022 return error; 6023 } 6024 6025 /** 6026 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 6027 * @phba: pointer to lpfc hba data structure. 6028 * 6029 * This routine is invoked to unset the PCI device memory space for device 6030 * with SLI-3 interface spec. 6031 **/ 6032 static void 6033 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 6034 { 6035 struct pci_dev *pdev; 6036 6037 /* Obtain PCI device reference */ 6038 if (!phba->pcidev) 6039 return; 6040 else 6041 pdev = phba->pcidev; 6042 6043 /* Free coherent DMA memory allocated */ 6044 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6045 phba->hbqslimp.virt, phba->hbqslimp.phys); 6046 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6047 phba->slim2p.virt, phba->slim2p.phys); 6048 6049 /* I/O memory unmap */ 6050 iounmap(phba->ctrl_regs_memmap_p); 6051 iounmap(phba->slim_memmap_p); 6052 6053 return; 6054 } 6055 6056 /** 6057 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 6058 * @phba: pointer to lpfc hba data structure. 6059 * 6060 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 6061 * done and check status. 6062 * 6063 * Return 0 if successful, otherwise -ENODEV. 6064 **/ 6065 int 6066 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 6067 { 6068 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 6069 struct lpfc_register reg_data; 6070 int i, port_error = 0; 6071 uint32_t if_type; 6072 6073 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 6074 memset(®_data, 0, sizeof(reg_data)); 6075 if (!phba->sli4_hba.PSMPHRregaddr) 6076 return -ENODEV; 6077 6078 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 6079 for (i = 0; i < 3000; i++) { 6080 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 6081 &portsmphr_reg.word0) || 6082 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 6083 /* Port has a fatal POST error, break out */ 6084 port_error = -ENODEV; 6085 break; 6086 } 6087 if (LPFC_POST_STAGE_PORT_READY == 6088 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 6089 break; 6090 msleep(10); 6091 } 6092 6093 /* 6094 * If there was a port error during POST, then don't proceed with 6095 * other register reads as the data may not be valid. Just exit. 6096 */ 6097 if (port_error) { 6098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6099 "1408 Port Failed POST - portsmphr=0x%x, " 6100 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 6101 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 6102 portsmphr_reg.word0, 6103 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 6104 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 6105 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 6106 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 6107 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 6108 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 6109 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 6110 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 6111 } else { 6112 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6113 "2534 Device Info: SLIFamily=0x%x, " 6114 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 6115 "SLIHint_2=0x%x, FT=0x%x\n", 6116 bf_get(lpfc_sli_intf_sli_family, 6117 &phba->sli4_hba.sli_intf), 6118 bf_get(lpfc_sli_intf_slirev, 6119 &phba->sli4_hba.sli_intf), 6120 bf_get(lpfc_sli_intf_if_type, 6121 &phba->sli4_hba.sli_intf), 6122 bf_get(lpfc_sli_intf_sli_hint1, 6123 &phba->sli4_hba.sli_intf), 6124 bf_get(lpfc_sli_intf_sli_hint2, 6125 &phba->sli4_hba.sli_intf), 6126 bf_get(lpfc_sli_intf_func_type, 6127 &phba->sli4_hba.sli_intf)); 6128 /* 6129 * Check for other Port errors during the initialization 6130 * process. Fail the load if the port did not come up 6131 * correctly. 6132 */ 6133 if_type = bf_get(lpfc_sli_intf_if_type, 6134 &phba->sli4_hba.sli_intf); 6135 switch (if_type) { 6136 case LPFC_SLI_INTF_IF_TYPE_0: 6137 phba->sli4_hba.ue_mask_lo = 6138 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 6139 phba->sli4_hba.ue_mask_hi = 6140 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 6141 uerrlo_reg.word0 = 6142 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 6143 uerrhi_reg.word0 = 6144 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 6145 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 6146 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 6147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6148 "1422 Unrecoverable Error " 6149 "Detected during POST " 6150 "uerr_lo_reg=0x%x, " 6151 "uerr_hi_reg=0x%x, " 6152 "ue_mask_lo_reg=0x%x, " 6153 "ue_mask_hi_reg=0x%x\n", 6154 uerrlo_reg.word0, 6155 uerrhi_reg.word0, 6156 phba->sli4_hba.ue_mask_lo, 6157 phba->sli4_hba.ue_mask_hi); 6158 port_error = -ENODEV; 6159 } 6160 break; 6161 case LPFC_SLI_INTF_IF_TYPE_2: 6162 /* Final checks. The port status should be clean. */ 6163 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 6164 ®_data.word0) || 6165 (bf_get(lpfc_sliport_status_err, ®_data) && 6166 !bf_get(lpfc_sliport_status_rn, ®_data))) { 6167 phba->work_status[0] = 6168 readl(phba->sli4_hba.u.if_type2. 6169 ERR1regaddr); 6170 phba->work_status[1] = 6171 readl(phba->sli4_hba.u.if_type2. 6172 ERR2regaddr); 6173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6174 "2888 Unrecoverable port error " 6175 "following POST: port status reg " 6176 "0x%x, port_smphr reg 0x%x, " 6177 "error 1=0x%x, error 2=0x%x\n", 6178 reg_data.word0, 6179 portsmphr_reg.word0, 6180 phba->work_status[0], 6181 phba->work_status[1]); 6182 port_error = -ENODEV; 6183 } 6184 break; 6185 case LPFC_SLI_INTF_IF_TYPE_1: 6186 default: 6187 break; 6188 } 6189 } 6190 return port_error; 6191 } 6192 6193 /** 6194 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 6195 * @phba: pointer to lpfc hba data structure. 6196 * @if_type: The SLI4 interface type getting configured. 6197 * 6198 * This routine is invoked to set up SLI4 BAR0 PCI config space register 6199 * memory map. 6200 **/ 6201 static void 6202 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 6203 { 6204 switch (if_type) { 6205 case LPFC_SLI_INTF_IF_TYPE_0: 6206 phba->sli4_hba.u.if_type0.UERRLOregaddr = 6207 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 6208 phba->sli4_hba.u.if_type0.UERRHIregaddr = 6209 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 6210 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 6211 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 6212 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 6213 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 6214 phba->sli4_hba.SLIINTFregaddr = 6215 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6216 break; 6217 case LPFC_SLI_INTF_IF_TYPE_2: 6218 phba->sli4_hba.u.if_type2.ERR1regaddr = 6219 phba->sli4_hba.conf_regs_memmap_p + 6220 LPFC_CTL_PORT_ER1_OFFSET; 6221 phba->sli4_hba.u.if_type2.ERR2regaddr = 6222 phba->sli4_hba.conf_regs_memmap_p + 6223 LPFC_CTL_PORT_ER2_OFFSET; 6224 phba->sli4_hba.u.if_type2.CTRLregaddr = 6225 phba->sli4_hba.conf_regs_memmap_p + 6226 LPFC_CTL_PORT_CTL_OFFSET; 6227 phba->sli4_hba.u.if_type2.STATUSregaddr = 6228 phba->sli4_hba.conf_regs_memmap_p + 6229 LPFC_CTL_PORT_STA_OFFSET; 6230 phba->sli4_hba.SLIINTFregaddr = 6231 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 6232 phba->sli4_hba.PSMPHRregaddr = 6233 phba->sli4_hba.conf_regs_memmap_p + 6234 LPFC_CTL_PORT_SEM_OFFSET; 6235 phba->sli4_hba.RQDBregaddr = 6236 phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL; 6237 phba->sli4_hba.WQDBregaddr = 6238 phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL; 6239 phba->sli4_hba.EQCQDBregaddr = 6240 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 6241 phba->sli4_hba.MQDBregaddr = 6242 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 6243 phba->sli4_hba.BMBXregaddr = 6244 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 6245 break; 6246 case LPFC_SLI_INTF_IF_TYPE_1: 6247 default: 6248 dev_printk(KERN_ERR, &phba->pcidev->dev, 6249 "FATAL - unsupported SLI4 interface type - %d\n", 6250 if_type); 6251 break; 6252 } 6253 } 6254 6255 /** 6256 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 6257 * @phba: pointer to lpfc hba data structure. 6258 * 6259 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 6260 * memory map. 6261 **/ 6262 static void 6263 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 6264 { 6265 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6266 LPFC_SLIPORT_IF0_SMPHR; 6267 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6268 LPFC_HST_ISR0; 6269 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6270 LPFC_HST_IMR0; 6271 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 6272 LPFC_HST_ISCR0; 6273 } 6274 6275 /** 6276 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 6277 * @phba: pointer to lpfc hba data structure. 6278 * @vf: virtual function number 6279 * 6280 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 6281 * based on the given viftual function number, @vf. 6282 * 6283 * Return 0 if successful, otherwise -ENODEV. 6284 **/ 6285 static int 6286 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 6287 { 6288 if (vf > LPFC_VIR_FUNC_MAX) 6289 return -ENODEV; 6290 6291 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6292 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL); 6293 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6294 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL); 6295 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6296 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 6297 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6298 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 6299 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 6300 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 6301 return 0; 6302 } 6303 6304 /** 6305 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 6306 * @phba: pointer to lpfc hba data structure. 6307 * 6308 * This routine is invoked to create the bootstrap mailbox 6309 * region consistent with the SLI-4 interface spec. This 6310 * routine allocates all memory necessary to communicate 6311 * mailbox commands to the port and sets up all alignment 6312 * needs. No locks are expected to be held when calling 6313 * this routine. 6314 * 6315 * Return codes 6316 * 0 - successful 6317 * -ENOMEM - could not allocated memory. 6318 **/ 6319 static int 6320 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 6321 { 6322 uint32_t bmbx_size; 6323 struct lpfc_dmabuf *dmabuf; 6324 struct dma_address *dma_address; 6325 uint32_t pa_addr; 6326 uint64_t phys_addr; 6327 6328 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6329 if (!dmabuf) 6330 return -ENOMEM; 6331 6332 /* 6333 * The bootstrap mailbox region is comprised of 2 parts 6334 * plus an alignment restriction of 16 bytes. 6335 */ 6336 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 6337 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 6338 bmbx_size, 6339 &dmabuf->phys, 6340 GFP_KERNEL); 6341 if (!dmabuf->virt) { 6342 kfree(dmabuf); 6343 return -ENOMEM; 6344 } 6345 memset(dmabuf->virt, 0, bmbx_size); 6346 6347 /* 6348 * Initialize the bootstrap mailbox pointers now so that the register 6349 * operations are simple later. The mailbox dma address is required 6350 * to be 16-byte aligned. Also align the virtual memory as each 6351 * maibox is copied into the bmbx mailbox region before issuing the 6352 * command to the port. 6353 */ 6354 phba->sli4_hba.bmbx.dmabuf = dmabuf; 6355 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 6356 6357 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 6358 LPFC_ALIGN_16_BYTE); 6359 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 6360 LPFC_ALIGN_16_BYTE); 6361 6362 /* 6363 * Set the high and low physical addresses now. The SLI4 alignment 6364 * requirement is 16 bytes and the mailbox is posted to the port 6365 * as two 30-bit addresses. The other data is a bit marking whether 6366 * the 30-bit address is the high or low address. 6367 * Upcast bmbx aphys to 64bits so shift instruction compiles 6368 * clean on 32 bit machines. 6369 */ 6370 dma_address = &phba->sli4_hba.bmbx.dma_address; 6371 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 6372 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 6373 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 6374 LPFC_BMBX_BIT1_ADDR_HI); 6375 6376 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 6377 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 6378 LPFC_BMBX_BIT1_ADDR_LO); 6379 return 0; 6380 } 6381 6382 /** 6383 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 6384 * @phba: pointer to lpfc hba data structure. 6385 * 6386 * This routine is invoked to teardown the bootstrap mailbox 6387 * region and release all host resources. This routine requires 6388 * the caller to ensure all mailbox commands recovered, no 6389 * additional mailbox comands are sent, and interrupts are disabled 6390 * before calling this routine. 6391 * 6392 **/ 6393 static void 6394 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 6395 { 6396 dma_free_coherent(&phba->pcidev->dev, 6397 phba->sli4_hba.bmbx.bmbx_size, 6398 phba->sli4_hba.bmbx.dmabuf->virt, 6399 phba->sli4_hba.bmbx.dmabuf->phys); 6400 6401 kfree(phba->sli4_hba.bmbx.dmabuf); 6402 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 6403 } 6404 6405 /** 6406 * lpfc_sli4_read_config - Get the config parameters. 6407 * @phba: pointer to lpfc hba data structure. 6408 * 6409 * This routine is invoked to read the configuration parameters from the HBA. 6410 * The configuration parameters are used to set the base and maximum values 6411 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 6412 * allocation for the port. 6413 * 6414 * Return codes 6415 * 0 - successful 6416 * -ENOMEM - No available memory 6417 * -EIO - The mailbox failed to complete successfully. 6418 **/ 6419 int 6420 lpfc_sli4_read_config(struct lpfc_hba *phba) 6421 { 6422 LPFC_MBOXQ_t *pmb; 6423 struct lpfc_mbx_read_config *rd_config; 6424 union lpfc_sli4_cfg_shdr *shdr; 6425 uint32_t shdr_status, shdr_add_status; 6426 struct lpfc_mbx_get_func_cfg *get_func_cfg; 6427 struct lpfc_rsrc_desc_fcfcoe *desc; 6428 char *pdesc_0; 6429 uint32_t desc_count; 6430 int length, i, rc = 0, rc2; 6431 6432 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 6433 if (!pmb) { 6434 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6435 "2011 Unable to allocate memory for issuing " 6436 "SLI_CONFIG_SPECIAL mailbox command\n"); 6437 return -ENOMEM; 6438 } 6439 6440 lpfc_read_config(phba, pmb); 6441 6442 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6443 if (rc != MBX_SUCCESS) { 6444 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6445 "2012 Mailbox failed , mbxCmd x%x " 6446 "READ_CONFIG, mbxStatus x%x\n", 6447 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6448 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6449 rc = -EIO; 6450 } else { 6451 rd_config = &pmb->u.mqe.un.rd_config; 6452 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 6453 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 6454 phba->sli4_hba.lnk_info.lnk_tp = 6455 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 6456 phba->sli4_hba.lnk_info.lnk_no = 6457 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 6458 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6459 "3081 lnk_type:%d, lnk_numb:%d\n", 6460 phba->sli4_hba.lnk_info.lnk_tp, 6461 phba->sli4_hba.lnk_info.lnk_no); 6462 } else 6463 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 6464 "3082 Mailbox (x%x) returned ldv:x0\n", 6465 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 6466 phba->sli4_hba.extents_in_use = 6467 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 6468 phba->sli4_hba.max_cfg_param.max_xri = 6469 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 6470 phba->sli4_hba.max_cfg_param.xri_base = 6471 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 6472 phba->sli4_hba.max_cfg_param.max_vpi = 6473 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 6474 phba->sli4_hba.max_cfg_param.vpi_base = 6475 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 6476 phba->sli4_hba.max_cfg_param.max_rpi = 6477 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 6478 phba->sli4_hba.max_cfg_param.rpi_base = 6479 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 6480 phba->sli4_hba.max_cfg_param.max_vfi = 6481 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 6482 phba->sli4_hba.max_cfg_param.vfi_base = 6483 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 6484 phba->sli4_hba.max_cfg_param.max_fcfi = 6485 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 6486 phba->sli4_hba.max_cfg_param.max_eq = 6487 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 6488 phba->sli4_hba.max_cfg_param.max_rq = 6489 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 6490 phba->sli4_hba.max_cfg_param.max_wq = 6491 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 6492 phba->sli4_hba.max_cfg_param.max_cq = 6493 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 6494 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 6495 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 6496 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 6497 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 6498 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 6499 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 6500 phba->max_vports = phba->max_vpi; 6501 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6502 "2003 cfg params Extents? %d " 6503 "XRI(B:%d M:%d), " 6504 "VPI(B:%d M:%d) " 6505 "VFI(B:%d M:%d) " 6506 "RPI(B:%d M:%d) " 6507 "FCFI(Count:%d)\n", 6508 phba->sli4_hba.extents_in_use, 6509 phba->sli4_hba.max_cfg_param.xri_base, 6510 phba->sli4_hba.max_cfg_param.max_xri, 6511 phba->sli4_hba.max_cfg_param.vpi_base, 6512 phba->sli4_hba.max_cfg_param.max_vpi, 6513 phba->sli4_hba.max_cfg_param.vfi_base, 6514 phba->sli4_hba.max_cfg_param.max_vfi, 6515 phba->sli4_hba.max_cfg_param.rpi_base, 6516 phba->sli4_hba.max_cfg_param.max_rpi, 6517 phba->sli4_hba.max_cfg_param.max_fcfi); 6518 } 6519 6520 if (rc) 6521 goto read_cfg_out; 6522 6523 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 6524 if (phba->cfg_hba_queue_depth > 6525 (phba->sli4_hba.max_cfg_param.max_xri - 6526 lpfc_sli4_get_els_iocb_cnt(phba))) 6527 phba->cfg_hba_queue_depth = 6528 phba->sli4_hba.max_cfg_param.max_xri - 6529 lpfc_sli4_get_els_iocb_cnt(phba); 6530 6531 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 6532 LPFC_SLI_INTF_IF_TYPE_2) 6533 goto read_cfg_out; 6534 6535 /* get the pf# and vf# for SLI4 if_type 2 port */ 6536 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 6537 sizeof(struct lpfc_sli4_cfg_mhdr)); 6538 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 6539 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 6540 length, LPFC_SLI4_MBX_EMBED); 6541 6542 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 6543 shdr = (union lpfc_sli4_cfg_shdr *) 6544 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 6545 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 6546 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 6547 if (rc2 || shdr_status || shdr_add_status) { 6548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6549 "3026 Mailbox failed , mbxCmd x%x " 6550 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 6551 bf_get(lpfc_mqe_command, &pmb->u.mqe), 6552 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 6553 goto read_cfg_out; 6554 } 6555 6556 /* search for fc_fcoe resrouce descriptor */ 6557 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 6558 desc_count = get_func_cfg->func_cfg.rsrc_desc_count; 6559 6560 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 6561 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 6562 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 6563 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 6564 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 6565 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 6566 goto read_cfg_out; 6567 6568 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 6569 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 6570 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 6571 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 6572 phba->sli4_hba.iov.pf_number = 6573 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 6574 phba->sli4_hba.iov.vf_number = 6575 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 6576 break; 6577 } 6578 } 6579 6580 if (i < LPFC_RSRC_DESC_MAX_NUM) 6581 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 6582 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 6583 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 6584 phba->sli4_hba.iov.vf_number); 6585 else 6586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6587 "3028 GET_FUNCTION_CONFIG: failed to find " 6588 "Resrouce Descriptor:x%x\n", 6589 LPFC_RSRC_DESC_TYPE_FCFCOE); 6590 6591 read_cfg_out: 6592 mempool_free(pmb, phba->mbox_mem_pool); 6593 return rc; 6594 } 6595 6596 /** 6597 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 6598 * @phba: pointer to lpfc hba data structure. 6599 * 6600 * This routine is invoked to setup the port-side endian order when 6601 * the port if_type is 0. This routine has no function for other 6602 * if_types. 6603 * 6604 * Return codes 6605 * 0 - successful 6606 * -ENOMEM - No available memory 6607 * -EIO - The mailbox failed to complete successfully. 6608 **/ 6609 static int 6610 lpfc_setup_endian_order(struct lpfc_hba *phba) 6611 { 6612 LPFC_MBOXQ_t *mboxq; 6613 uint32_t if_type, rc = 0; 6614 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 6615 HOST_ENDIAN_HIGH_WORD1}; 6616 6617 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 6618 switch (if_type) { 6619 case LPFC_SLI_INTF_IF_TYPE_0: 6620 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6621 GFP_KERNEL); 6622 if (!mboxq) { 6623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6624 "0492 Unable to allocate memory for " 6625 "issuing SLI_CONFIG_SPECIAL mailbox " 6626 "command\n"); 6627 return -ENOMEM; 6628 } 6629 6630 /* 6631 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 6632 * two words to contain special data values and no other data. 6633 */ 6634 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 6635 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 6636 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6637 if (rc != MBX_SUCCESS) { 6638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6639 "0493 SLI_CONFIG_SPECIAL mailbox " 6640 "failed with status x%x\n", 6641 rc); 6642 rc = -EIO; 6643 } 6644 mempool_free(mboxq, phba->mbox_mem_pool); 6645 break; 6646 case LPFC_SLI_INTF_IF_TYPE_2: 6647 case LPFC_SLI_INTF_IF_TYPE_1: 6648 default: 6649 break; 6650 } 6651 return rc; 6652 } 6653 6654 /** 6655 * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts 6656 * @phba: pointer to lpfc hba data structure. 6657 * 6658 * This routine is invoked to check the user settable queue counts for EQs and 6659 * CQs. after this routine is called the counts will be set to valid values that 6660 * adhere to the constraints of the system's interrupt vectors and the port's 6661 * queue resources. 6662 * 6663 * Return codes 6664 * 0 - successful 6665 * -ENOMEM - No available memory 6666 **/ 6667 static int 6668 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 6669 { 6670 int cfg_fcp_io_channel; 6671 uint32_t cpu; 6672 uint32_t i = 0; 6673 6674 6675 /* 6676 * Sanity check for configured queue parameters against the run-time 6677 * device parameters 6678 */ 6679 6680 /* Sanity check on HBA EQ parameters */ 6681 cfg_fcp_io_channel = phba->cfg_fcp_io_channel; 6682 6683 /* It doesn't make sense to have more io channels then CPUs */ 6684 for_each_online_cpu(cpu) { 6685 i++; 6686 } 6687 if (i < cfg_fcp_io_channel) { 6688 lpfc_printf_log(phba, 6689 KERN_ERR, LOG_INIT, 6690 "3188 Reducing IO channels to match number of " 6691 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i); 6692 cfg_fcp_io_channel = i; 6693 } 6694 6695 if (cfg_fcp_io_channel > 6696 phba->sli4_hba.max_cfg_param.max_eq) { 6697 if (phba->sli4_hba.max_cfg_param.max_eq < 6698 LPFC_FCP_IO_CHAN_MIN) { 6699 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6700 "2574 Not enough EQs (%d) from the " 6701 "pci function for supporting FCP " 6702 "EQs (%d)\n", 6703 phba->sli4_hba.max_cfg_param.max_eq, 6704 phba->cfg_fcp_io_channel); 6705 goto out_error; 6706 } 6707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6708 "2575 Reducing IO channels to match number of " 6709 "available EQs: from %d to %d\n", 6710 cfg_fcp_io_channel, 6711 phba->sli4_hba.max_cfg_param.max_eq); 6712 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq; 6713 } 6714 6715 /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */ 6716 6717 /* The actual number of FCP event queues adopted */ 6718 phba->cfg_fcp_eq_count = cfg_fcp_io_channel; 6719 phba->cfg_fcp_wq_count = cfg_fcp_io_channel; 6720 phba->cfg_fcp_io_channel = cfg_fcp_io_channel; 6721 6722 /* Get EQ depth from module parameter, fake the default for now */ 6723 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 6724 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 6725 6726 /* Get CQ depth from module parameter, fake the default for now */ 6727 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 6728 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 6729 6730 return 0; 6731 out_error: 6732 return -ENOMEM; 6733 } 6734 6735 /** 6736 * lpfc_sli4_queue_create - Create all the SLI4 queues 6737 * @phba: pointer to lpfc hba data structure. 6738 * 6739 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 6740 * operation. For each SLI4 queue type, the parameters such as queue entry 6741 * count (queue depth) shall be taken from the module parameter. For now, 6742 * we just use some constant number as place holder. 6743 * 6744 * Return codes 6745 * 0 - successful 6746 * -ENOMEM - No availble memory 6747 * -EIO - The mailbox failed to complete successfully. 6748 **/ 6749 int 6750 lpfc_sli4_queue_create(struct lpfc_hba *phba) 6751 { 6752 struct lpfc_queue *qdesc; 6753 int idx; 6754 6755 /* 6756 * Create HBA Record arrays. 6757 */ 6758 if (!phba->cfg_fcp_io_channel) 6759 return -ERANGE; 6760 6761 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 6762 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 6763 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 6764 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 6765 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 6766 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 6767 6768 phba->sli4_hba.hba_eq = kzalloc((sizeof(struct lpfc_queue *) * 6769 phba->cfg_fcp_io_channel), GFP_KERNEL); 6770 if (!phba->sli4_hba.hba_eq) { 6771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6772 "2576 Failed allocate memory for " 6773 "fast-path EQ record array\n"); 6774 goto out_error; 6775 } 6776 6777 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) * 6778 phba->cfg_fcp_io_channel), GFP_KERNEL); 6779 if (!phba->sli4_hba.fcp_cq) { 6780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6781 "2577 Failed allocate memory for fast-path " 6782 "CQ record array\n"); 6783 goto out_error; 6784 } 6785 6786 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) * 6787 phba->cfg_fcp_io_channel), GFP_KERNEL); 6788 if (!phba->sli4_hba.fcp_wq) { 6789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6790 "2578 Failed allocate memory for fast-path " 6791 "WQ record array\n"); 6792 goto out_error; 6793 } 6794 6795 /* 6796 * Since the first EQ can have multiple CQs associated with it, 6797 * this array is used to quickly see if we have a FCP fast-path 6798 * CQ match. 6799 */ 6800 phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) * 6801 phba->cfg_fcp_io_channel), GFP_KERNEL); 6802 if (!phba->sli4_hba.fcp_cq_map) { 6803 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6804 "2545 Failed allocate memory for fast-path " 6805 "CQ map\n"); 6806 goto out_error; 6807 } 6808 6809 /* 6810 * Create HBA Event Queues (EQs). The cfg_fcp_io_channel specifies 6811 * how many EQs to create. 6812 */ 6813 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6814 6815 /* Create EQs */ 6816 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 6817 phba->sli4_hba.eq_ecount); 6818 if (!qdesc) { 6819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6820 "0497 Failed allocate EQ (%d)\n", idx); 6821 goto out_error; 6822 } 6823 phba->sli4_hba.hba_eq[idx] = qdesc; 6824 6825 /* Create Fast Path FCP CQs */ 6826 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6827 phba->sli4_hba.cq_ecount); 6828 if (!qdesc) { 6829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6830 "0499 Failed allocate fast-path FCP " 6831 "CQ (%d)\n", idx); 6832 goto out_error; 6833 } 6834 phba->sli4_hba.fcp_cq[idx] = qdesc; 6835 6836 /* Create Fast Path FCP WQs */ 6837 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6838 phba->sli4_hba.wq_ecount); 6839 if (!qdesc) { 6840 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6841 "0503 Failed allocate fast-path FCP " 6842 "WQ (%d)\n", idx); 6843 goto out_error; 6844 } 6845 phba->sli4_hba.fcp_wq[idx] = qdesc; 6846 } 6847 6848 6849 /* 6850 * Create Slow Path Completion Queues (CQs) 6851 */ 6852 6853 /* Create slow-path Mailbox Command Complete Queue */ 6854 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6855 phba->sli4_hba.cq_ecount); 6856 if (!qdesc) { 6857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6858 "0500 Failed allocate slow-path mailbox CQ\n"); 6859 goto out_error; 6860 } 6861 phba->sli4_hba.mbx_cq = qdesc; 6862 6863 /* Create slow-path ELS Complete Queue */ 6864 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 6865 phba->sli4_hba.cq_ecount); 6866 if (!qdesc) { 6867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6868 "0501 Failed allocate slow-path ELS CQ\n"); 6869 goto out_error; 6870 } 6871 phba->sli4_hba.els_cq = qdesc; 6872 6873 6874 /* 6875 * Create Slow Path Work Queues (WQs) 6876 */ 6877 6878 /* Create Mailbox Command Queue */ 6879 6880 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 6881 phba->sli4_hba.mq_ecount); 6882 if (!qdesc) { 6883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6884 "0505 Failed allocate slow-path MQ\n"); 6885 goto out_error; 6886 } 6887 phba->sli4_hba.mbx_wq = qdesc; 6888 6889 /* 6890 * Create ELS Work Queues 6891 */ 6892 6893 /* Create slow-path ELS Work Queue */ 6894 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 6895 phba->sli4_hba.wq_ecount); 6896 if (!qdesc) { 6897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6898 "0504 Failed allocate slow-path ELS WQ\n"); 6899 goto out_error; 6900 } 6901 phba->sli4_hba.els_wq = qdesc; 6902 6903 /* 6904 * Create Receive Queue (RQ) 6905 */ 6906 6907 /* Create Receive Queue for header */ 6908 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6909 phba->sli4_hba.rq_ecount); 6910 if (!qdesc) { 6911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6912 "0506 Failed allocate receive HRQ\n"); 6913 goto out_error; 6914 } 6915 phba->sli4_hba.hdr_rq = qdesc; 6916 6917 /* Create Receive Queue for data */ 6918 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 6919 phba->sli4_hba.rq_ecount); 6920 if (!qdesc) { 6921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6922 "0507 Failed allocate receive DRQ\n"); 6923 goto out_error; 6924 } 6925 phba->sli4_hba.dat_rq = qdesc; 6926 6927 return 0; 6928 6929 out_error: 6930 lpfc_sli4_queue_destroy(phba); 6931 return -ENOMEM; 6932 } 6933 6934 /** 6935 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 6936 * @phba: pointer to lpfc hba data structure. 6937 * 6938 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 6939 * operation. 6940 * 6941 * Return codes 6942 * 0 - successful 6943 * -ENOMEM - No available memory 6944 * -EIO - The mailbox failed to complete successfully. 6945 **/ 6946 void 6947 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 6948 { 6949 int idx; 6950 6951 if (phba->sli4_hba.hba_eq != NULL) { 6952 /* Release HBA event queue */ 6953 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6954 if (phba->sli4_hba.hba_eq[idx] != NULL) { 6955 lpfc_sli4_queue_free( 6956 phba->sli4_hba.hba_eq[idx]); 6957 phba->sli4_hba.hba_eq[idx] = NULL; 6958 } 6959 } 6960 kfree(phba->sli4_hba.hba_eq); 6961 phba->sli4_hba.hba_eq = NULL; 6962 } 6963 6964 if (phba->sli4_hba.fcp_cq != NULL) { 6965 /* Release FCP completion queue */ 6966 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6967 if (phba->sli4_hba.fcp_cq[idx] != NULL) { 6968 lpfc_sli4_queue_free( 6969 phba->sli4_hba.fcp_cq[idx]); 6970 phba->sli4_hba.fcp_cq[idx] = NULL; 6971 } 6972 } 6973 kfree(phba->sli4_hba.fcp_cq); 6974 phba->sli4_hba.fcp_cq = NULL; 6975 } 6976 6977 if (phba->sli4_hba.fcp_wq != NULL) { 6978 /* Release FCP work queue */ 6979 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) { 6980 if (phba->sli4_hba.fcp_wq[idx] != NULL) { 6981 lpfc_sli4_queue_free( 6982 phba->sli4_hba.fcp_wq[idx]); 6983 phba->sli4_hba.fcp_wq[idx] = NULL; 6984 } 6985 } 6986 kfree(phba->sli4_hba.fcp_wq); 6987 phba->sli4_hba.fcp_wq = NULL; 6988 } 6989 6990 /* Release FCP CQ mapping array */ 6991 if (phba->sli4_hba.fcp_cq_map != NULL) { 6992 kfree(phba->sli4_hba.fcp_cq_map); 6993 phba->sli4_hba.fcp_cq_map = NULL; 6994 } 6995 6996 /* Release mailbox command work queue */ 6997 if (phba->sli4_hba.mbx_wq != NULL) { 6998 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq); 6999 phba->sli4_hba.mbx_wq = NULL; 7000 } 7001 7002 /* Release ELS work queue */ 7003 if (phba->sli4_hba.els_wq != NULL) { 7004 lpfc_sli4_queue_free(phba->sli4_hba.els_wq); 7005 phba->sli4_hba.els_wq = NULL; 7006 } 7007 7008 /* Release unsolicited receive queue */ 7009 if (phba->sli4_hba.hdr_rq != NULL) { 7010 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq); 7011 phba->sli4_hba.hdr_rq = NULL; 7012 } 7013 if (phba->sli4_hba.dat_rq != NULL) { 7014 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq); 7015 phba->sli4_hba.dat_rq = NULL; 7016 } 7017 7018 /* Release ELS complete queue */ 7019 if (phba->sli4_hba.els_cq != NULL) { 7020 lpfc_sli4_queue_free(phba->sli4_hba.els_cq); 7021 phba->sli4_hba.els_cq = NULL; 7022 } 7023 7024 /* Release mailbox command complete queue */ 7025 if (phba->sli4_hba.mbx_cq != NULL) { 7026 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq); 7027 phba->sli4_hba.mbx_cq = NULL; 7028 } 7029 7030 return; 7031 } 7032 7033 /** 7034 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 7035 * @phba: pointer to lpfc hba data structure. 7036 * 7037 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 7038 * operation. 7039 * 7040 * Return codes 7041 * 0 - successful 7042 * -ENOMEM - No available memory 7043 * -EIO - The mailbox failed to complete successfully. 7044 **/ 7045 int 7046 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 7047 { 7048 struct lpfc_sli *psli = &phba->sli; 7049 struct lpfc_sli_ring *pring; 7050 int rc = -ENOMEM; 7051 int fcp_eqidx, fcp_cqidx, fcp_wqidx; 7052 int fcp_cq_index = 0; 7053 7054 /* 7055 * Set up HBA Event Queues (EQs) 7056 */ 7057 7058 /* Set up HBA event queue */ 7059 if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) { 7060 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7061 "3147 Fast-path EQs not allocated\n"); 7062 rc = -ENOMEM; 7063 goto out_error; 7064 } 7065 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) { 7066 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) { 7067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7068 "0522 Fast-path EQ (%d) not " 7069 "allocated\n", fcp_eqidx); 7070 rc = -ENOMEM; 7071 goto out_destroy_hba_eq; 7072 } 7073 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx], 7074 (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel)); 7075 if (rc) { 7076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7077 "0523 Failed setup of fast-path EQ " 7078 "(%d), rc = 0x%x\n", fcp_eqidx, rc); 7079 goto out_destroy_hba_eq; 7080 } 7081 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7082 "2584 HBA EQ setup: " 7083 "queue[%d]-id=%d\n", fcp_eqidx, 7084 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id); 7085 } 7086 7087 /* Set up fast-path FCP Response Complete Queue */ 7088 if (!phba->sli4_hba.fcp_cq) { 7089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7090 "3148 Fast-path FCP CQ array not " 7091 "allocated\n"); 7092 rc = -ENOMEM; 7093 goto out_destroy_hba_eq; 7094 } 7095 7096 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) { 7097 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) { 7098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7099 "0526 Fast-path FCP CQ (%d) not " 7100 "allocated\n", fcp_cqidx); 7101 rc = -ENOMEM; 7102 goto out_destroy_fcp_cq; 7103 } 7104 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx], 7105 phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP); 7106 if (rc) { 7107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7108 "0527 Failed setup of fast-path FCP " 7109 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc); 7110 goto out_destroy_fcp_cq; 7111 } 7112 7113 /* Setup fcp_cq_map for fast lookup */ 7114 phba->sli4_hba.fcp_cq_map[fcp_cqidx] = 7115 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id; 7116 7117 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7118 "2588 FCP CQ setup: cq[%d]-id=%d, " 7119 "parent seq[%d]-id=%d\n", 7120 fcp_cqidx, 7121 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id, 7122 fcp_cqidx, 7123 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id); 7124 } 7125 7126 /* Set up fast-path FCP Work Queue */ 7127 if (!phba->sli4_hba.fcp_wq) { 7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7129 "3149 Fast-path FCP WQ array not " 7130 "allocated\n"); 7131 rc = -ENOMEM; 7132 goto out_destroy_fcp_cq; 7133 } 7134 7135 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) { 7136 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) { 7137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7138 "0534 Fast-path FCP WQ (%d) not " 7139 "allocated\n", fcp_wqidx); 7140 rc = -ENOMEM; 7141 goto out_destroy_fcp_wq; 7142 } 7143 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx], 7144 phba->sli4_hba.fcp_cq[fcp_wqidx], 7145 LPFC_FCP); 7146 if (rc) { 7147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7148 "0535 Failed setup of fast-path FCP " 7149 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc); 7150 goto out_destroy_fcp_wq; 7151 } 7152 7153 /* Bind this WQ to the next FCP ring */ 7154 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx]; 7155 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx]; 7156 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring; 7157 7158 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7159 "2591 FCP WQ setup: wq[%d]-id=%d, " 7160 "parent cq[%d]-id=%d\n", 7161 fcp_wqidx, 7162 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id, 7163 fcp_cq_index, 7164 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id); 7165 } 7166 /* 7167 * Set up Complete Queues (CQs) 7168 */ 7169 7170 /* Set up slow-path MBOX Complete Queue as the first CQ */ 7171 if (!phba->sli4_hba.mbx_cq) { 7172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7173 "0528 Mailbox CQ not allocated\n"); 7174 rc = -ENOMEM; 7175 goto out_destroy_fcp_wq; 7176 } 7177 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, 7178 phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX); 7179 if (rc) { 7180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7181 "0529 Failed setup of slow-path mailbox CQ: " 7182 "rc = 0x%x\n", rc); 7183 goto out_destroy_fcp_wq; 7184 } 7185 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7186 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n", 7187 phba->sli4_hba.mbx_cq->queue_id, 7188 phba->sli4_hba.hba_eq[0]->queue_id); 7189 7190 /* Set up slow-path ELS Complete Queue */ 7191 if (!phba->sli4_hba.els_cq) { 7192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7193 "0530 ELS CQ not allocated\n"); 7194 rc = -ENOMEM; 7195 goto out_destroy_mbx_cq; 7196 } 7197 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, 7198 phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS); 7199 if (rc) { 7200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7201 "0531 Failed setup of slow-path ELS CQ: " 7202 "rc = 0x%x\n", rc); 7203 goto out_destroy_mbx_cq; 7204 } 7205 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7206 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n", 7207 phba->sli4_hba.els_cq->queue_id, 7208 phba->sli4_hba.hba_eq[0]->queue_id); 7209 7210 /* 7211 * Set up all the Work Queues (WQs) 7212 */ 7213 7214 /* Set up Mailbox Command Queue */ 7215 if (!phba->sli4_hba.mbx_wq) { 7216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7217 "0538 Slow-path MQ not allocated\n"); 7218 rc = -ENOMEM; 7219 goto out_destroy_els_cq; 7220 } 7221 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq, 7222 phba->sli4_hba.mbx_cq, LPFC_MBOX); 7223 if (rc) { 7224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7225 "0539 Failed setup of slow-path MQ: " 7226 "rc = 0x%x\n", rc); 7227 goto out_destroy_els_cq; 7228 } 7229 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7230 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 7231 phba->sli4_hba.mbx_wq->queue_id, 7232 phba->sli4_hba.mbx_cq->queue_id); 7233 7234 /* Set up slow-path ELS Work Queue */ 7235 if (!phba->sli4_hba.els_wq) { 7236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7237 "0536 Slow-path ELS WQ not allocated\n"); 7238 rc = -ENOMEM; 7239 goto out_destroy_mbx_wq; 7240 } 7241 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq, 7242 phba->sli4_hba.els_cq, LPFC_ELS); 7243 if (rc) { 7244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7245 "0537 Failed setup of slow-path ELS WQ: " 7246 "rc = 0x%x\n", rc); 7247 goto out_destroy_mbx_wq; 7248 } 7249 7250 /* Bind this WQ to the ELS ring */ 7251 pring = &psli->ring[LPFC_ELS_RING]; 7252 pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq; 7253 phba->sli4_hba.els_cq->pring = pring; 7254 7255 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7256 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 7257 phba->sli4_hba.els_wq->queue_id, 7258 phba->sli4_hba.els_cq->queue_id); 7259 7260 /* 7261 * Create Receive Queue (RQ) 7262 */ 7263 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 7264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7265 "0540 Receive Queue not allocated\n"); 7266 rc = -ENOMEM; 7267 goto out_destroy_els_wq; 7268 } 7269 7270 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 7271 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 7272 7273 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 7274 phba->sli4_hba.els_cq, LPFC_USOL); 7275 if (rc) { 7276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7277 "0541 Failed setup of Receive Queue: " 7278 "rc = 0x%x\n", rc); 7279 goto out_destroy_fcp_wq; 7280 } 7281 7282 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7283 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 7284 "parent cq-id=%d\n", 7285 phba->sli4_hba.hdr_rq->queue_id, 7286 phba->sli4_hba.dat_rq->queue_id, 7287 phba->sli4_hba.els_cq->queue_id); 7288 return 0; 7289 7290 out_destroy_els_wq: 7291 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7292 out_destroy_mbx_wq: 7293 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7294 out_destroy_els_cq: 7295 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7296 out_destroy_mbx_cq: 7297 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7298 out_destroy_fcp_wq: 7299 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) 7300 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]); 7301 out_destroy_fcp_cq: 7302 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) 7303 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]); 7304 out_destroy_hba_eq: 7305 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) 7306 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]); 7307 out_error: 7308 return rc; 7309 } 7310 7311 /** 7312 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 7313 * @phba: pointer to lpfc hba data structure. 7314 * 7315 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 7316 * operation. 7317 * 7318 * Return codes 7319 * 0 - successful 7320 * -ENOMEM - No available memory 7321 * -EIO - The mailbox failed to complete successfully. 7322 **/ 7323 void 7324 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 7325 { 7326 int fcp_qidx; 7327 7328 /* Unset mailbox command work queue */ 7329 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 7330 /* Unset ELS work queue */ 7331 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 7332 /* Unset unsolicited receive queue */ 7333 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq); 7334 /* Unset FCP work queue */ 7335 if (phba->sli4_hba.fcp_wq) { 7336 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7337 fcp_qidx++) 7338 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]); 7339 } 7340 /* Unset mailbox command complete queue */ 7341 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 7342 /* Unset ELS complete queue */ 7343 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 7344 /* Unset FCP response complete queue */ 7345 if (phba->sli4_hba.fcp_cq) { 7346 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7347 fcp_qidx++) 7348 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]); 7349 } 7350 /* Unset fast-path event queue */ 7351 if (phba->sli4_hba.hba_eq) { 7352 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel; 7353 fcp_qidx++) 7354 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]); 7355 } 7356 } 7357 7358 /** 7359 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 7360 * @phba: pointer to lpfc hba data structure. 7361 * 7362 * This routine is invoked to allocate and set up a pool of completion queue 7363 * events. The body of the completion queue event is a completion queue entry 7364 * CQE. For now, this pool is used for the interrupt service routine to queue 7365 * the following HBA completion queue events for the worker thread to process: 7366 * - Mailbox asynchronous events 7367 * - Receive queue completion unsolicited events 7368 * Later, this can be used for all the slow-path events. 7369 * 7370 * Return codes 7371 * 0 - successful 7372 * -ENOMEM - No available memory 7373 **/ 7374 static int 7375 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 7376 { 7377 struct lpfc_cq_event *cq_event; 7378 int i; 7379 7380 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 7381 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 7382 if (!cq_event) 7383 goto out_pool_create_fail; 7384 list_add_tail(&cq_event->list, 7385 &phba->sli4_hba.sp_cqe_event_pool); 7386 } 7387 return 0; 7388 7389 out_pool_create_fail: 7390 lpfc_sli4_cq_event_pool_destroy(phba); 7391 return -ENOMEM; 7392 } 7393 7394 /** 7395 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 7396 * @phba: pointer to lpfc hba data structure. 7397 * 7398 * This routine is invoked to free the pool of completion queue events at 7399 * driver unload time. Note that, it is the responsibility of the driver 7400 * cleanup routine to free all the outstanding completion-queue events 7401 * allocated from this pool back into the pool before invoking this routine 7402 * to destroy the pool. 7403 **/ 7404 static void 7405 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 7406 { 7407 struct lpfc_cq_event *cq_event, *next_cq_event; 7408 7409 list_for_each_entry_safe(cq_event, next_cq_event, 7410 &phba->sli4_hba.sp_cqe_event_pool, list) { 7411 list_del(&cq_event->list); 7412 kfree(cq_event); 7413 } 7414 } 7415 7416 /** 7417 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7418 * @phba: pointer to lpfc hba data structure. 7419 * 7420 * This routine is the lock free version of the API invoked to allocate a 7421 * completion-queue event from the free pool. 7422 * 7423 * Return: Pointer to the newly allocated completion-queue event if successful 7424 * NULL otherwise. 7425 **/ 7426 struct lpfc_cq_event * 7427 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7428 { 7429 struct lpfc_cq_event *cq_event = NULL; 7430 7431 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 7432 struct lpfc_cq_event, list); 7433 return cq_event; 7434 } 7435 7436 /** 7437 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 7438 * @phba: pointer to lpfc hba data structure. 7439 * 7440 * This routine is the lock version of the API invoked to allocate a 7441 * completion-queue event from the free pool. 7442 * 7443 * Return: Pointer to the newly allocated completion-queue event if successful 7444 * NULL otherwise. 7445 **/ 7446 struct lpfc_cq_event * 7447 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 7448 { 7449 struct lpfc_cq_event *cq_event; 7450 unsigned long iflags; 7451 7452 spin_lock_irqsave(&phba->hbalock, iflags); 7453 cq_event = __lpfc_sli4_cq_event_alloc(phba); 7454 spin_unlock_irqrestore(&phba->hbalock, iflags); 7455 return cq_event; 7456 } 7457 7458 /** 7459 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7460 * @phba: pointer to lpfc hba data structure. 7461 * @cq_event: pointer to the completion queue event to be freed. 7462 * 7463 * This routine is the lock free version of the API invoked to release a 7464 * completion-queue event back into the free pool. 7465 **/ 7466 void 7467 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7468 struct lpfc_cq_event *cq_event) 7469 { 7470 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 7471 } 7472 7473 /** 7474 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 7475 * @phba: pointer to lpfc hba data structure. 7476 * @cq_event: pointer to the completion queue event to be freed. 7477 * 7478 * This routine is the lock version of the API invoked to release a 7479 * completion-queue event back into the free pool. 7480 **/ 7481 void 7482 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 7483 struct lpfc_cq_event *cq_event) 7484 { 7485 unsigned long iflags; 7486 spin_lock_irqsave(&phba->hbalock, iflags); 7487 __lpfc_sli4_cq_event_release(phba, cq_event); 7488 spin_unlock_irqrestore(&phba->hbalock, iflags); 7489 } 7490 7491 /** 7492 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 7493 * @phba: pointer to lpfc hba data structure. 7494 * 7495 * This routine is to free all the pending completion-queue events to the 7496 * back into the free pool for device reset. 7497 **/ 7498 static void 7499 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 7500 { 7501 LIST_HEAD(cqelist); 7502 struct lpfc_cq_event *cqe; 7503 unsigned long iflags; 7504 7505 /* Retrieve all the pending WCQEs from pending WCQE lists */ 7506 spin_lock_irqsave(&phba->hbalock, iflags); 7507 /* Pending FCP XRI abort events */ 7508 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 7509 &cqelist); 7510 /* Pending ELS XRI abort events */ 7511 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 7512 &cqelist); 7513 /* Pending asynnc events */ 7514 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 7515 &cqelist); 7516 spin_unlock_irqrestore(&phba->hbalock, iflags); 7517 7518 while (!list_empty(&cqelist)) { 7519 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 7520 lpfc_sli4_cq_event_release(phba, cqe); 7521 } 7522 } 7523 7524 /** 7525 * lpfc_pci_function_reset - Reset pci function. 7526 * @phba: pointer to lpfc hba data structure. 7527 * 7528 * This routine is invoked to request a PCI function reset. It will destroys 7529 * all resources assigned to the PCI function which originates this request. 7530 * 7531 * Return codes 7532 * 0 - successful 7533 * -ENOMEM - No available memory 7534 * -EIO - The mailbox failed to complete successfully. 7535 **/ 7536 int 7537 lpfc_pci_function_reset(struct lpfc_hba *phba) 7538 { 7539 LPFC_MBOXQ_t *mboxq; 7540 uint32_t rc = 0, if_type; 7541 uint32_t shdr_status, shdr_add_status; 7542 uint32_t rdy_chk, num_resets = 0, reset_again = 0; 7543 union lpfc_sli4_cfg_shdr *shdr; 7544 struct lpfc_register reg_data; 7545 uint16_t devid; 7546 7547 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7548 switch (if_type) { 7549 case LPFC_SLI_INTF_IF_TYPE_0: 7550 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7551 GFP_KERNEL); 7552 if (!mboxq) { 7553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7554 "0494 Unable to allocate memory for " 7555 "issuing SLI_FUNCTION_RESET mailbox " 7556 "command\n"); 7557 return -ENOMEM; 7558 } 7559 7560 /* Setup PCI function reset mailbox-ioctl command */ 7561 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7562 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 7563 LPFC_SLI4_MBX_EMBED); 7564 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7565 shdr = (union lpfc_sli4_cfg_shdr *) 7566 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7567 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7568 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7569 &shdr->response); 7570 if (rc != MBX_TIMEOUT) 7571 mempool_free(mboxq, phba->mbox_mem_pool); 7572 if (shdr_status || shdr_add_status || rc) { 7573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7574 "0495 SLI_FUNCTION_RESET mailbox " 7575 "failed with status x%x add_status x%x," 7576 " mbx status x%x\n", 7577 shdr_status, shdr_add_status, rc); 7578 rc = -ENXIO; 7579 } 7580 break; 7581 case LPFC_SLI_INTF_IF_TYPE_2: 7582 for (num_resets = 0; 7583 num_resets < MAX_IF_TYPE_2_RESETS; 7584 num_resets++) { 7585 reg_data.word0 = 0; 7586 bf_set(lpfc_sliport_ctrl_end, ®_data, 7587 LPFC_SLIPORT_LITTLE_ENDIAN); 7588 bf_set(lpfc_sliport_ctrl_ip, ®_data, 7589 LPFC_SLIPORT_INIT_PORT); 7590 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 7591 CTRLregaddr); 7592 /* flush */ 7593 pci_read_config_word(phba->pcidev, 7594 PCI_DEVICE_ID, &devid); 7595 /* 7596 * Poll the Port Status Register and wait for RDY for 7597 * up to 10 seconds. If the port doesn't respond, treat 7598 * it as an error. If the port responds with RN, start 7599 * the loop again. 7600 */ 7601 for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) { 7602 msleep(10); 7603 if (lpfc_readl(phba->sli4_hba.u.if_type2. 7604 STATUSregaddr, ®_data.word0)) { 7605 rc = -ENODEV; 7606 goto out; 7607 } 7608 if (bf_get(lpfc_sliport_status_rn, ®_data)) 7609 reset_again++; 7610 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 7611 break; 7612 } 7613 7614 /* 7615 * If the port responds to the init request with 7616 * reset needed, delay for a bit and restart the loop. 7617 */ 7618 if (reset_again && (rdy_chk < 1000)) { 7619 msleep(10); 7620 reset_again = 0; 7621 continue; 7622 } 7623 7624 /* Detect any port errors. */ 7625 if ((bf_get(lpfc_sliport_status_err, ®_data)) || 7626 (rdy_chk >= 1000)) { 7627 phba->work_status[0] = readl( 7628 phba->sli4_hba.u.if_type2.ERR1regaddr); 7629 phba->work_status[1] = readl( 7630 phba->sli4_hba.u.if_type2.ERR2regaddr); 7631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7632 "2890 Port error detected during port " 7633 "reset(%d): wait_tmo:%d ms, " 7634 "port status reg 0x%x, " 7635 "error 1=0x%x, error 2=0x%x\n", 7636 num_resets, rdy_chk*10, 7637 reg_data.word0, 7638 phba->work_status[0], 7639 phba->work_status[1]); 7640 rc = -ENODEV; 7641 } 7642 7643 /* 7644 * Terminate the outer loop provided the Port indicated 7645 * ready within 10 seconds. 7646 */ 7647 if (rdy_chk < 1000) 7648 break; 7649 } 7650 /* delay driver action following IF_TYPE_2 function reset */ 7651 msleep(100); 7652 break; 7653 case LPFC_SLI_INTF_IF_TYPE_1: 7654 default: 7655 break; 7656 } 7657 7658 out: 7659 /* Catch the not-ready port failure after a port reset. */ 7660 if (num_resets >= MAX_IF_TYPE_2_RESETS) 7661 rc = -ENODEV; 7662 7663 return rc; 7664 } 7665 7666 /** 7667 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands 7668 * @phba: pointer to lpfc hba data structure. 7669 * @cnt: number of nop mailbox commands to send. 7670 * 7671 * This routine is invoked to send a number @cnt of NOP mailbox command and 7672 * wait for each command to complete. 7673 * 7674 * Return: the number of NOP mailbox command completed. 7675 **/ 7676 static int 7677 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt) 7678 { 7679 LPFC_MBOXQ_t *mboxq; 7680 int length, cmdsent; 7681 uint32_t mbox_tmo; 7682 uint32_t rc = 0; 7683 uint32_t shdr_status, shdr_add_status; 7684 union lpfc_sli4_cfg_shdr *shdr; 7685 7686 if (cnt == 0) { 7687 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7688 "2518 Requested to send 0 NOP mailbox cmd\n"); 7689 return cnt; 7690 } 7691 7692 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7693 if (!mboxq) { 7694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7695 "2519 Unable to allocate memory for issuing " 7696 "NOP mailbox command\n"); 7697 return 0; 7698 } 7699 7700 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */ 7701 length = (sizeof(struct lpfc_mbx_nop) - 7702 sizeof(struct lpfc_sli4_cfg_mhdr)); 7703 7704 for (cmdsent = 0; cmdsent < cnt; cmdsent++) { 7705 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 7706 LPFC_MBOX_OPCODE_NOP, length, 7707 LPFC_SLI4_MBX_EMBED); 7708 if (!phba->sli4_hba.intr_enable) 7709 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7710 else { 7711 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 7712 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 7713 } 7714 if (rc == MBX_TIMEOUT) 7715 break; 7716 /* Check return status */ 7717 shdr = (union lpfc_sli4_cfg_shdr *) 7718 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 7719 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7720 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 7721 &shdr->response); 7722 if (shdr_status || shdr_add_status || rc) { 7723 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7724 "2520 NOP mailbox command failed " 7725 "status x%x add_status x%x mbx " 7726 "status x%x\n", shdr_status, 7727 shdr_add_status, rc); 7728 break; 7729 } 7730 } 7731 7732 if (rc != MBX_TIMEOUT) 7733 mempool_free(mboxq, phba->mbox_mem_pool); 7734 7735 return cmdsent; 7736 } 7737 7738 /** 7739 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 7740 * @phba: pointer to lpfc hba data structure. 7741 * 7742 * This routine is invoked to set up the PCI device memory space for device 7743 * with SLI-4 interface spec. 7744 * 7745 * Return codes 7746 * 0 - successful 7747 * other values - error 7748 **/ 7749 static int 7750 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 7751 { 7752 struct pci_dev *pdev; 7753 unsigned long bar0map_len, bar1map_len, bar2map_len; 7754 int error = -ENODEV; 7755 uint32_t if_type; 7756 7757 /* Obtain PCI device reference */ 7758 if (!phba->pcidev) 7759 return error; 7760 else 7761 pdev = phba->pcidev; 7762 7763 /* Set the device DMA mask size */ 7764 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7765 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7766 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7767 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7768 return error; 7769 } 7770 } 7771 7772 /* 7773 * The BARs and register set definitions and offset locations are 7774 * dependent on the if_type. 7775 */ 7776 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 7777 &phba->sli4_hba.sli_intf.word0)) { 7778 return error; 7779 } 7780 7781 /* There is no SLI3 failback for SLI4 devices. */ 7782 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 7783 LPFC_SLI_INTF_VALID) { 7784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7785 "2894 SLI_INTF reg contents invalid " 7786 "sli_intf reg 0x%x\n", 7787 phba->sli4_hba.sli_intf.word0); 7788 return error; 7789 } 7790 7791 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7792 /* 7793 * Get the bus address of SLI4 device Bar regions and the 7794 * number of bytes required by each mapping. The mapping of the 7795 * particular PCI BARs regions is dependent on the type of 7796 * SLI4 device. 7797 */ 7798 if (pci_resource_start(pdev, 0)) { 7799 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7800 bar0map_len = pci_resource_len(pdev, 0); 7801 7802 /* 7803 * Map SLI4 PCI Config Space Register base to a kernel virtual 7804 * addr 7805 */ 7806 phba->sli4_hba.conf_regs_memmap_p = 7807 ioremap(phba->pci_bar0_map, bar0map_len); 7808 if (!phba->sli4_hba.conf_regs_memmap_p) { 7809 dev_printk(KERN_ERR, &pdev->dev, 7810 "ioremap failed for SLI4 PCI config " 7811 "registers.\n"); 7812 goto out; 7813 } 7814 /* Set up BAR0 PCI config space register memory map */ 7815 lpfc_sli4_bar0_register_memmap(phba, if_type); 7816 } else { 7817 phba->pci_bar0_map = pci_resource_start(pdev, 1); 7818 bar0map_len = pci_resource_len(pdev, 1); 7819 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7820 dev_printk(KERN_ERR, &pdev->dev, 7821 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 7822 goto out; 7823 } 7824 phba->sli4_hba.conf_regs_memmap_p = 7825 ioremap(phba->pci_bar0_map, bar0map_len); 7826 if (!phba->sli4_hba.conf_regs_memmap_p) { 7827 dev_printk(KERN_ERR, &pdev->dev, 7828 "ioremap failed for SLI4 PCI config " 7829 "registers.\n"); 7830 goto out; 7831 } 7832 lpfc_sli4_bar0_register_memmap(phba, if_type); 7833 } 7834 7835 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7836 (pci_resource_start(pdev, 2))) { 7837 /* 7838 * Map SLI4 if type 0 HBA Control Register base to a kernel 7839 * virtual address and setup the registers. 7840 */ 7841 phba->pci_bar1_map = pci_resource_start(pdev, 2); 7842 bar1map_len = pci_resource_len(pdev, 2); 7843 phba->sli4_hba.ctrl_regs_memmap_p = 7844 ioremap(phba->pci_bar1_map, bar1map_len); 7845 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 7846 dev_printk(KERN_ERR, &pdev->dev, 7847 "ioremap failed for SLI4 HBA control registers.\n"); 7848 goto out_iounmap_conf; 7849 } 7850 lpfc_sli4_bar1_register_memmap(phba); 7851 } 7852 7853 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 7854 (pci_resource_start(pdev, 4))) { 7855 /* 7856 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 7857 * virtual address and setup the registers. 7858 */ 7859 phba->pci_bar2_map = pci_resource_start(pdev, 4); 7860 bar2map_len = pci_resource_len(pdev, 4); 7861 phba->sli4_hba.drbl_regs_memmap_p = 7862 ioremap(phba->pci_bar2_map, bar2map_len); 7863 if (!phba->sli4_hba.drbl_regs_memmap_p) { 7864 dev_printk(KERN_ERR, &pdev->dev, 7865 "ioremap failed for SLI4 HBA doorbell registers.\n"); 7866 goto out_iounmap_ctrl; 7867 } 7868 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 7869 if (error) 7870 goto out_iounmap_all; 7871 } 7872 7873 return 0; 7874 7875 out_iounmap_all: 7876 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7877 out_iounmap_ctrl: 7878 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7879 out_iounmap_conf: 7880 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7881 out: 7882 return error; 7883 } 7884 7885 /** 7886 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 7887 * @phba: pointer to lpfc hba data structure. 7888 * 7889 * This routine is invoked to unset the PCI device memory space for device 7890 * with SLI-4 interface spec. 7891 **/ 7892 static void 7893 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 7894 { 7895 uint32_t if_type; 7896 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7897 7898 switch (if_type) { 7899 case LPFC_SLI_INTF_IF_TYPE_0: 7900 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 7901 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 7902 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7903 break; 7904 case LPFC_SLI_INTF_IF_TYPE_2: 7905 iounmap(phba->sli4_hba.conf_regs_memmap_p); 7906 break; 7907 case LPFC_SLI_INTF_IF_TYPE_1: 7908 default: 7909 dev_printk(KERN_ERR, &phba->pcidev->dev, 7910 "FATAL - unsupported SLI4 interface type - %d\n", 7911 if_type); 7912 break; 7913 } 7914 } 7915 7916 /** 7917 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 7918 * @phba: pointer to lpfc hba data structure. 7919 * 7920 * This routine is invoked to enable the MSI-X interrupt vectors to device 7921 * with SLI-3 interface specs. The kernel function pci_enable_msix() is 7922 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once 7923 * invoked, enables either all or nothing, depending on the current 7924 * availability of PCI vector resources. The device driver is responsible 7925 * for calling the individual request_irq() to register each MSI-X vector 7926 * with a interrupt handler, which is done in this function. Note that 7927 * later when device is unloading, the driver should always call free_irq() 7928 * on all MSI-X vectors it has done request_irq() on before calling 7929 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 7930 * will be left with MSI-X enabled and leaks its vectors. 7931 * 7932 * Return codes 7933 * 0 - successful 7934 * other values - error 7935 **/ 7936 static int 7937 lpfc_sli_enable_msix(struct lpfc_hba *phba) 7938 { 7939 int rc, i; 7940 LPFC_MBOXQ_t *pmb; 7941 7942 /* Set up MSI-X multi-message vectors */ 7943 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7944 phba->msix_entries[i].entry = i; 7945 7946 /* Configure MSI-X capability structure */ 7947 rc = pci_enable_msix(phba->pcidev, phba->msix_entries, 7948 ARRAY_SIZE(phba->msix_entries)); 7949 if (rc) { 7950 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7951 "0420 PCI enable MSI-X failed (%d)\n", rc); 7952 goto msi_fail_out; 7953 } 7954 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 7955 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7956 "0477 MSI-X entry[%d]: vector=x%x " 7957 "message=%d\n", i, 7958 phba->msix_entries[i].vector, 7959 phba->msix_entries[i].entry); 7960 /* 7961 * Assign MSI-X vectors to interrupt handlers 7962 */ 7963 7964 /* vector-0 is associated to slow-path handler */ 7965 rc = request_irq(phba->msix_entries[0].vector, 7966 &lpfc_sli_sp_intr_handler, IRQF_SHARED, 7967 LPFC_SP_DRIVER_HANDLER_NAME, phba); 7968 if (rc) { 7969 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7970 "0421 MSI-X slow-path request_irq failed " 7971 "(%d)\n", rc); 7972 goto msi_fail_out; 7973 } 7974 7975 /* vector-1 is associated to fast-path handler */ 7976 rc = request_irq(phba->msix_entries[1].vector, 7977 &lpfc_sli_fp_intr_handler, IRQF_SHARED, 7978 LPFC_FP_DRIVER_HANDLER_NAME, phba); 7979 7980 if (rc) { 7981 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7982 "0429 MSI-X fast-path request_irq failed " 7983 "(%d)\n", rc); 7984 goto irq_fail_out; 7985 } 7986 7987 /* 7988 * Configure HBA MSI-X attention conditions to messages 7989 */ 7990 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7991 7992 if (!pmb) { 7993 rc = -ENOMEM; 7994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7995 "0474 Unable to allocate memory for issuing " 7996 "MBOX_CONFIG_MSI command\n"); 7997 goto mem_fail_out; 7998 } 7999 rc = lpfc_config_msi(phba, pmb); 8000 if (rc) 8001 goto mbx_fail_out; 8002 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 8003 if (rc != MBX_SUCCESS) { 8004 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 8005 "0351 Config MSI mailbox command failed, " 8006 "mbxCmd x%x, mbxStatus x%x\n", 8007 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 8008 goto mbx_fail_out; 8009 } 8010 8011 /* Free memory allocated for mailbox command */ 8012 mempool_free(pmb, phba->mbox_mem_pool); 8013 return rc; 8014 8015 mbx_fail_out: 8016 /* Free memory allocated for mailbox command */ 8017 mempool_free(pmb, phba->mbox_mem_pool); 8018 8019 mem_fail_out: 8020 /* free the irq already requested */ 8021 free_irq(phba->msix_entries[1].vector, phba); 8022 8023 irq_fail_out: 8024 /* free the irq already requested */ 8025 free_irq(phba->msix_entries[0].vector, phba); 8026 8027 msi_fail_out: 8028 /* Unconfigure MSI-X capability structure */ 8029 pci_disable_msix(phba->pcidev); 8030 return rc; 8031 } 8032 8033 /** 8034 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device. 8035 * @phba: pointer to lpfc hba data structure. 8036 * 8037 * This routine is invoked to release the MSI-X vectors and then disable the 8038 * MSI-X interrupt mode to device with SLI-3 interface spec. 8039 **/ 8040 static void 8041 lpfc_sli_disable_msix(struct lpfc_hba *phba) 8042 { 8043 int i; 8044 8045 /* Free up MSI-X multi-message vectors */ 8046 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 8047 free_irq(phba->msix_entries[i].vector, phba); 8048 /* Disable MSI-X */ 8049 pci_disable_msix(phba->pcidev); 8050 8051 return; 8052 } 8053 8054 /** 8055 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 8056 * @phba: pointer to lpfc hba data structure. 8057 * 8058 * This routine is invoked to enable the MSI interrupt mode to device with 8059 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 8060 * enable the MSI vector. The device driver is responsible for calling the 8061 * request_irq() to register MSI vector with a interrupt the handler, which 8062 * is done in this function. 8063 * 8064 * Return codes 8065 * 0 - successful 8066 * other values - error 8067 */ 8068 static int 8069 lpfc_sli_enable_msi(struct lpfc_hba *phba) 8070 { 8071 int rc; 8072 8073 rc = pci_enable_msi(phba->pcidev); 8074 if (!rc) 8075 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8076 "0462 PCI enable MSI mode success.\n"); 8077 else { 8078 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8079 "0471 PCI enable MSI mode failed (%d)\n", rc); 8080 return rc; 8081 } 8082 8083 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8084 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8085 if (rc) { 8086 pci_disable_msi(phba->pcidev); 8087 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8088 "0478 MSI request_irq failed (%d)\n", rc); 8089 } 8090 return rc; 8091 } 8092 8093 /** 8094 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device. 8095 * @phba: pointer to lpfc hba data structure. 8096 * 8097 * This routine is invoked to disable the MSI interrupt mode to device with 8098 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has 8099 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8100 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8101 * its vector. 8102 */ 8103 static void 8104 lpfc_sli_disable_msi(struct lpfc_hba *phba) 8105 { 8106 free_irq(phba->pcidev->irq, phba); 8107 pci_disable_msi(phba->pcidev); 8108 return; 8109 } 8110 8111 /** 8112 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 8113 * @phba: pointer to lpfc hba data structure. 8114 * 8115 * This routine is invoked to enable device interrupt and associate driver's 8116 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 8117 * spec. Depends on the interrupt mode configured to the driver, the driver 8118 * will try to fallback from the configured interrupt mode to an interrupt 8119 * mode which is supported by the platform, kernel, and device in the order 8120 * of: 8121 * MSI-X -> MSI -> IRQ. 8122 * 8123 * Return codes 8124 * 0 - successful 8125 * other values - error 8126 **/ 8127 static uint32_t 8128 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8129 { 8130 uint32_t intr_mode = LPFC_INTR_ERROR; 8131 int retval; 8132 8133 if (cfg_mode == 2) { 8134 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 8135 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 8136 if (!retval) { 8137 /* Now, try to enable MSI-X interrupt mode */ 8138 retval = lpfc_sli_enable_msix(phba); 8139 if (!retval) { 8140 /* Indicate initialization to MSI-X mode */ 8141 phba->intr_type = MSIX; 8142 intr_mode = 2; 8143 } 8144 } 8145 } 8146 8147 /* Fallback to MSI if MSI-X initialization failed */ 8148 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8149 retval = lpfc_sli_enable_msi(phba); 8150 if (!retval) { 8151 /* Indicate initialization to MSI mode */ 8152 phba->intr_type = MSI; 8153 intr_mode = 1; 8154 } 8155 } 8156 8157 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8158 if (phba->intr_type == NONE) { 8159 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 8160 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8161 if (!retval) { 8162 /* Indicate initialization to INTx mode */ 8163 phba->intr_type = INTx; 8164 intr_mode = 0; 8165 } 8166 } 8167 return intr_mode; 8168 } 8169 8170 /** 8171 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 8172 * @phba: pointer to lpfc hba data structure. 8173 * 8174 * This routine is invoked to disable device interrupt and disassociate the 8175 * driver's interrupt handler(s) from interrupt vector(s) to device with 8176 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 8177 * release the interrupt vector(s) for the message signaled interrupt. 8178 **/ 8179 static void 8180 lpfc_sli_disable_intr(struct lpfc_hba *phba) 8181 { 8182 /* Disable the currently initialized interrupt mode */ 8183 if (phba->intr_type == MSIX) 8184 lpfc_sli_disable_msix(phba); 8185 else if (phba->intr_type == MSI) 8186 lpfc_sli_disable_msi(phba); 8187 else if (phba->intr_type == INTx) 8188 free_irq(phba->pcidev->irq, phba); 8189 8190 /* Reset interrupt management states */ 8191 phba->intr_type = NONE; 8192 phba->sli.slistat.sli_intr = 0; 8193 8194 return; 8195 } 8196 8197 /** 8198 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 8199 * @phba: pointer to lpfc hba data structure. 8200 * 8201 * This routine is invoked to enable the MSI-X interrupt vectors to device 8202 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called 8203 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked, 8204 * enables either all or nothing, depending on the current availability of 8205 * PCI vector resources. The device driver is responsible for calling the 8206 * individual request_irq() to register each MSI-X vector with a interrupt 8207 * handler, which is done in this function. Note that later when device is 8208 * unloading, the driver should always call free_irq() on all MSI-X vectors 8209 * it has done request_irq() on before calling pci_disable_msix(). Failure 8210 * to do so results in a BUG_ON() and a device will be left with MSI-X 8211 * enabled and leaks its vectors. 8212 * 8213 * Return codes 8214 * 0 - successful 8215 * other values - error 8216 **/ 8217 static int 8218 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 8219 { 8220 int vectors, rc, index; 8221 8222 /* Set up MSI-X multi-message vectors */ 8223 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8224 phba->sli4_hba.msix_entries[index].entry = index; 8225 8226 /* Configure MSI-X capability structure */ 8227 vectors = phba->cfg_fcp_io_channel; 8228 enable_msix_vectors: 8229 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries, 8230 vectors); 8231 if (rc > 1) { 8232 vectors = rc; 8233 goto enable_msix_vectors; 8234 } else if (rc) { 8235 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8236 "0484 PCI enable MSI-X failed (%d)\n", rc); 8237 goto msi_fail_out; 8238 } 8239 8240 /* Log MSI-X vector assignment */ 8241 for (index = 0; index < vectors; index++) 8242 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8243 "0489 MSI-X entry[%d]: vector=x%x " 8244 "message=%d\n", index, 8245 phba->sli4_hba.msix_entries[index].vector, 8246 phba->sli4_hba.msix_entries[index].entry); 8247 8248 /* 8249 * Assign MSI-X vectors to interrupt handlers 8250 */ 8251 for (index = 0; index < vectors; index++) { 8252 memset(&phba->sli4_hba.handler_name[index], 0, 16); 8253 sprintf((char *)&phba->sli4_hba.handler_name[index], 8254 LPFC_DRIVER_HANDLER_NAME"%d", index); 8255 8256 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8257 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8258 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1); 8259 rc = request_irq(phba->sli4_hba.msix_entries[index].vector, 8260 &lpfc_sli4_hba_intr_handler, IRQF_SHARED, 8261 (char *)&phba->sli4_hba.handler_name[index], 8262 &phba->sli4_hba.fcp_eq_hdl[index]); 8263 if (rc) { 8264 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8265 "0486 MSI-X fast-path (%d) " 8266 "request_irq failed (%d)\n", index, rc); 8267 goto cfg_fail_out; 8268 } 8269 } 8270 8271 if (vectors != phba->cfg_fcp_io_channel) { 8272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8273 "3238 Reducing IO channels to match number of " 8274 "MSI-X vectors, requested %d got %d\n", 8275 phba->cfg_fcp_io_channel, vectors); 8276 phba->cfg_fcp_io_channel = vectors; 8277 } 8278 return rc; 8279 8280 cfg_fail_out: 8281 /* free the irq already requested */ 8282 for (--index; index >= 0; index--) 8283 free_irq(phba->sli4_hba.msix_entries[index].vector, 8284 &phba->sli4_hba.fcp_eq_hdl[index]); 8285 8286 msi_fail_out: 8287 /* Unconfigure MSI-X capability structure */ 8288 pci_disable_msix(phba->pcidev); 8289 return rc; 8290 } 8291 8292 /** 8293 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device 8294 * @phba: pointer to lpfc hba data structure. 8295 * 8296 * This routine is invoked to release the MSI-X vectors and then disable the 8297 * MSI-X interrupt mode to device with SLI-4 interface spec. 8298 **/ 8299 static void 8300 lpfc_sli4_disable_msix(struct lpfc_hba *phba) 8301 { 8302 int index; 8303 8304 /* Free up MSI-X multi-message vectors */ 8305 for (index = 0; index < phba->cfg_fcp_io_channel; index++) 8306 free_irq(phba->sli4_hba.msix_entries[index].vector, 8307 &phba->sli4_hba.fcp_eq_hdl[index]); 8308 8309 /* Disable MSI-X */ 8310 pci_disable_msix(phba->pcidev); 8311 8312 return; 8313 } 8314 8315 /** 8316 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 8317 * @phba: pointer to lpfc hba data structure. 8318 * 8319 * This routine is invoked to enable the MSI interrupt mode to device with 8320 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 8321 * to enable the MSI vector. The device driver is responsible for calling 8322 * the request_irq() to register MSI vector with a interrupt the handler, 8323 * which is done in this function. 8324 * 8325 * Return codes 8326 * 0 - successful 8327 * other values - error 8328 **/ 8329 static int 8330 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 8331 { 8332 int rc, index; 8333 8334 rc = pci_enable_msi(phba->pcidev); 8335 if (!rc) 8336 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8337 "0487 PCI enable MSI mode success.\n"); 8338 else { 8339 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8340 "0488 PCI enable MSI mode failed (%d)\n", rc); 8341 return rc; 8342 } 8343 8344 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8345 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8346 if (rc) { 8347 pci_disable_msi(phba->pcidev); 8348 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 8349 "0490 MSI request_irq failed (%d)\n", rc); 8350 return rc; 8351 } 8352 8353 for (index = 0; index < phba->cfg_fcp_io_channel; index++) { 8354 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8355 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8356 } 8357 8358 return 0; 8359 } 8360 8361 /** 8362 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device 8363 * @phba: pointer to lpfc hba data structure. 8364 * 8365 * This routine is invoked to disable the MSI interrupt mode to device with 8366 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has 8367 * done request_irq() on before calling pci_disable_msi(). Failure to do so 8368 * results in a BUG_ON() and a device will be left with MSI enabled and leaks 8369 * its vector. 8370 **/ 8371 static void 8372 lpfc_sli4_disable_msi(struct lpfc_hba *phba) 8373 { 8374 free_irq(phba->pcidev->irq, phba); 8375 pci_disable_msi(phba->pcidev); 8376 return; 8377 } 8378 8379 /** 8380 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 8381 * @phba: pointer to lpfc hba data structure. 8382 * 8383 * This routine is invoked to enable device interrupt and associate driver's 8384 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 8385 * interface spec. Depends on the interrupt mode configured to the driver, 8386 * the driver will try to fallback from the configured interrupt mode to an 8387 * interrupt mode which is supported by the platform, kernel, and device in 8388 * the order of: 8389 * MSI-X -> MSI -> IRQ. 8390 * 8391 * Return codes 8392 * 0 - successful 8393 * other values - error 8394 **/ 8395 static uint32_t 8396 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 8397 { 8398 uint32_t intr_mode = LPFC_INTR_ERROR; 8399 int retval, index; 8400 8401 if (cfg_mode == 2) { 8402 /* Preparation before conf_msi mbox cmd */ 8403 retval = 0; 8404 if (!retval) { 8405 /* Now, try to enable MSI-X interrupt mode */ 8406 retval = lpfc_sli4_enable_msix(phba); 8407 if (!retval) { 8408 /* Indicate initialization to MSI-X mode */ 8409 phba->intr_type = MSIX; 8410 intr_mode = 2; 8411 } 8412 } 8413 } 8414 8415 /* Fallback to MSI if MSI-X initialization failed */ 8416 if (cfg_mode >= 1 && phba->intr_type == NONE) { 8417 retval = lpfc_sli4_enable_msi(phba); 8418 if (!retval) { 8419 /* Indicate initialization to MSI mode */ 8420 phba->intr_type = MSI; 8421 intr_mode = 1; 8422 } 8423 } 8424 8425 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 8426 if (phba->intr_type == NONE) { 8427 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 8428 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 8429 if (!retval) { 8430 /* Indicate initialization to INTx mode */ 8431 phba->intr_type = INTx; 8432 intr_mode = 0; 8433 for (index = 0; index < phba->cfg_fcp_io_channel; 8434 index++) { 8435 phba->sli4_hba.fcp_eq_hdl[index].idx = index; 8436 phba->sli4_hba.fcp_eq_hdl[index].phba = phba; 8437 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index]. 8438 fcp_eq_in_use, 1); 8439 } 8440 } 8441 } 8442 return intr_mode; 8443 } 8444 8445 /** 8446 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 8447 * @phba: pointer to lpfc hba data structure. 8448 * 8449 * This routine is invoked to disable device interrupt and disassociate 8450 * the driver's interrupt handler(s) from interrupt vector(s) to device 8451 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 8452 * will release the interrupt vector(s) for the message signaled interrupt. 8453 **/ 8454 static void 8455 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 8456 { 8457 /* Disable the currently initialized interrupt mode */ 8458 if (phba->intr_type == MSIX) 8459 lpfc_sli4_disable_msix(phba); 8460 else if (phba->intr_type == MSI) 8461 lpfc_sli4_disable_msi(phba); 8462 else if (phba->intr_type == INTx) 8463 free_irq(phba->pcidev->irq, phba); 8464 8465 /* Reset interrupt management states */ 8466 phba->intr_type = NONE; 8467 phba->sli.slistat.sli_intr = 0; 8468 8469 return; 8470 } 8471 8472 /** 8473 * lpfc_unset_hba - Unset SLI3 hba device initialization 8474 * @phba: pointer to lpfc hba data structure. 8475 * 8476 * This routine is invoked to unset the HBA device initialization steps to 8477 * a device with SLI-3 interface spec. 8478 **/ 8479 static void 8480 lpfc_unset_hba(struct lpfc_hba *phba) 8481 { 8482 struct lpfc_vport *vport = phba->pport; 8483 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8484 8485 spin_lock_irq(shost->host_lock); 8486 vport->load_flag |= FC_UNLOADING; 8487 spin_unlock_irq(shost->host_lock); 8488 8489 kfree(phba->vpi_bmask); 8490 kfree(phba->vpi_ids); 8491 8492 lpfc_stop_hba_timers(phba); 8493 8494 phba->pport->work_port_events = 0; 8495 8496 lpfc_sli_hba_down(phba); 8497 8498 lpfc_sli_brdrestart(phba); 8499 8500 lpfc_sli_disable_intr(phba); 8501 8502 return; 8503 } 8504 8505 /** 8506 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization. 8507 * @phba: pointer to lpfc hba data structure. 8508 * 8509 * This routine is invoked to unset the HBA device initialization steps to 8510 * a device with SLI-4 interface spec. 8511 **/ 8512 static void 8513 lpfc_sli4_unset_hba(struct lpfc_hba *phba) 8514 { 8515 struct lpfc_vport *vport = phba->pport; 8516 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 8517 8518 spin_lock_irq(shost->host_lock); 8519 vport->load_flag |= FC_UNLOADING; 8520 spin_unlock_irq(shost->host_lock); 8521 8522 phba->pport->work_port_events = 0; 8523 8524 /* Stop the SLI4 device port */ 8525 lpfc_stop_port(phba); 8526 8527 lpfc_sli4_disable_intr(phba); 8528 8529 /* Reset SLI4 HBA FCoE function */ 8530 lpfc_pci_function_reset(phba); 8531 lpfc_sli4_queue_destroy(phba); 8532 8533 return; 8534 } 8535 8536 /** 8537 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 8538 * @phba: Pointer to HBA context object. 8539 * 8540 * This function is called in the SLI4 code path to wait for completion 8541 * of device's XRIs exchange busy. It will check the XRI exchange busy 8542 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 8543 * that, it will check the XRI exchange busy on outstanding FCP and ELS 8544 * I/Os every 30 seconds, log error message, and wait forever. Only when 8545 * all XRI exchange busy complete, the driver unload shall proceed with 8546 * invoking the function reset ioctl mailbox command to the CNA and the 8547 * the rest of the driver unload resource release. 8548 **/ 8549 static void 8550 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 8551 { 8552 int wait_time = 0; 8553 int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8554 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8555 8556 while (!fcp_xri_cmpl || !els_xri_cmpl) { 8557 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 8558 if (!fcp_xri_cmpl) 8559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8560 "2877 FCP XRI exchange busy " 8561 "wait time: %d seconds.\n", 8562 wait_time/1000); 8563 if (!els_xri_cmpl) 8564 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8565 "2878 ELS XRI exchange busy " 8566 "wait time: %d seconds.\n", 8567 wait_time/1000); 8568 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 8569 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 8570 } else { 8571 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 8572 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 8573 } 8574 fcp_xri_cmpl = 8575 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 8576 els_xri_cmpl = 8577 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 8578 } 8579 } 8580 8581 /** 8582 * lpfc_sli4_hba_unset - Unset the fcoe hba 8583 * @phba: Pointer to HBA context object. 8584 * 8585 * This function is called in the SLI4 code path to reset the HBA's FCoE 8586 * function. The caller is not required to hold any lock. This routine 8587 * issues PCI function reset mailbox command to reset the FCoE function. 8588 * At the end of the function, it calls lpfc_hba_down_post function to 8589 * free any pending commands. 8590 **/ 8591 static void 8592 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 8593 { 8594 int wait_cnt = 0; 8595 LPFC_MBOXQ_t *mboxq; 8596 struct pci_dev *pdev = phba->pcidev; 8597 8598 lpfc_stop_hba_timers(phba); 8599 phba->sli4_hba.intr_enable = 0; 8600 8601 /* 8602 * Gracefully wait out the potential current outstanding asynchronous 8603 * mailbox command. 8604 */ 8605 8606 /* First, block any pending async mailbox command from posted */ 8607 spin_lock_irq(&phba->hbalock); 8608 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 8609 spin_unlock_irq(&phba->hbalock); 8610 /* Now, trying to wait it out if we can */ 8611 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8612 msleep(10); 8613 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 8614 break; 8615 } 8616 /* Forcefully release the outstanding mailbox command if timed out */ 8617 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 8618 spin_lock_irq(&phba->hbalock); 8619 mboxq = phba->sli.mbox_active; 8620 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 8621 __lpfc_mbox_cmpl_put(phba, mboxq); 8622 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 8623 phba->sli.mbox_active = NULL; 8624 spin_unlock_irq(&phba->hbalock); 8625 } 8626 8627 /* Abort all iocbs associated with the hba */ 8628 lpfc_sli_hba_iocb_abort(phba); 8629 8630 /* Wait for completion of device XRI exchange busy */ 8631 lpfc_sli4_xri_exchange_busy_wait(phba); 8632 8633 /* Disable PCI subsystem interrupt */ 8634 lpfc_sli4_disable_intr(phba); 8635 8636 /* Disable SR-IOV if enabled */ 8637 if (phba->cfg_sriov_nr_virtfn) 8638 pci_disable_sriov(pdev); 8639 8640 /* Stop kthread signal shall trigger work_done one more time */ 8641 kthread_stop(phba->worker_thread); 8642 8643 /* Reset SLI4 HBA FCoE function */ 8644 lpfc_pci_function_reset(phba); 8645 lpfc_sli4_queue_destroy(phba); 8646 8647 /* Stop the SLI4 device port */ 8648 phba->pport->work_port_events = 0; 8649 } 8650 8651 /** 8652 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 8653 * @phba: Pointer to HBA context object. 8654 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8655 * 8656 * This function is called in the SLI4 code path to read the port's 8657 * sli4 capabilities. 8658 * 8659 * This function may be be called from any context that can block-wait 8660 * for the completion. The expectation is that this routine is called 8661 * typically from probe_one or from the online routine. 8662 **/ 8663 int 8664 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8665 { 8666 int rc; 8667 struct lpfc_mqe *mqe; 8668 struct lpfc_pc_sli4_params *sli4_params; 8669 uint32_t mbox_tmo; 8670 8671 rc = 0; 8672 mqe = &mboxq->u.mqe; 8673 8674 /* Read the port's SLI4 Parameters port capabilities */ 8675 lpfc_pc_sli4_params(mboxq); 8676 if (!phba->sli4_hba.intr_enable) 8677 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8678 else { 8679 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8680 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8681 } 8682 8683 if (unlikely(rc)) 8684 return 1; 8685 8686 sli4_params = &phba->sli4_hba.pc_sli4_params; 8687 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 8688 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 8689 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 8690 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 8691 &mqe->un.sli4_params); 8692 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 8693 &mqe->un.sli4_params); 8694 sli4_params->proto_types = mqe->un.sli4_params.word3; 8695 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 8696 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 8697 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 8698 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 8699 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 8700 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 8701 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 8702 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 8703 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 8704 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 8705 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 8706 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 8707 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 8708 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 8709 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 8710 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 8711 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 8712 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 8713 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 8714 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 8715 8716 /* Make sure that sge_supp_len can be handled by the driver */ 8717 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8718 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8719 8720 return rc; 8721 } 8722 8723 /** 8724 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 8725 * @phba: Pointer to HBA context object. 8726 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 8727 * 8728 * This function is called in the SLI4 code path to read the port's 8729 * sli4 capabilities. 8730 * 8731 * This function may be be called from any context that can block-wait 8732 * for the completion. The expectation is that this routine is called 8733 * typically from probe_one or from the online routine. 8734 **/ 8735 int 8736 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 8737 { 8738 int rc; 8739 struct lpfc_mqe *mqe = &mboxq->u.mqe; 8740 struct lpfc_pc_sli4_params *sli4_params; 8741 uint32_t mbox_tmo; 8742 int length; 8743 struct lpfc_sli4_parameters *mbx_sli4_parameters; 8744 8745 /* 8746 * By default, the driver assumes the SLI4 port requires RPI 8747 * header postings. The SLI4_PARAM response will correct this 8748 * assumption. 8749 */ 8750 phba->sli4_hba.rpi_hdrs_in_use = 1; 8751 8752 /* Read the port's SLI4 Config Parameters */ 8753 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 8754 sizeof(struct lpfc_sli4_cfg_mhdr)); 8755 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8756 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 8757 length, LPFC_SLI4_MBX_EMBED); 8758 if (!phba->sli4_hba.intr_enable) 8759 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8760 else { 8761 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 8762 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 8763 } 8764 if (unlikely(rc)) 8765 return rc; 8766 sli4_params = &phba->sli4_hba.pc_sli4_params; 8767 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 8768 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 8769 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 8770 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 8771 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 8772 mbx_sli4_parameters); 8773 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 8774 mbx_sli4_parameters); 8775 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 8776 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 8777 else 8778 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 8779 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 8780 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 8781 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 8782 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 8783 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 8784 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 8785 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 8786 mbx_sli4_parameters); 8787 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 8788 mbx_sli4_parameters); 8789 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 8790 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 8791 8792 /* Make sure that sge_supp_len can be handled by the driver */ 8793 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 8794 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 8795 8796 return 0; 8797 } 8798 8799 /** 8800 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 8801 * @pdev: pointer to PCI device 8802 * @pid: pointer to PCI device identifier 8803 * 8804 * This routine is to be called to attach a device with SLI-3 interface spec 8805 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8806 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 8807 * information of the device and driver to see if the driver state that it can 8808 * support this kind of device. If the match is successful, the driver core 8809 * invokes this routine. If this routine determines it can claim the HBA, it 8810 * does all the initialization that it needs to do to handle the HBA properly. 8811 * 8812 * Return code 8813 * 0 - driver can claim the device 8814 * negative value - driver can not claim the device 8815 **/ 8816 static int 8817 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 8818 { 8819 struct lpfc_hba *phba; 8820 struct lpfc_vport *vport = NULL; 8821 struct Scsi_Host *shost = NULL; 8822 int error; 8823 uint32_t cfg_mode, intr_mode; 8824 8825 /* Allocate memory for HBA structure */ 8826 phba = lpfc_hba_alloc(pdev); 8827 if (!phba) 8828 return -ENOMEM; 8829 8830 /* Perform generic PCI device enabling operation */ 8831 error = lpfc_enable_pci_dev(phba); 8832 if (error) 8833 goto out_free_phba; 8834 8835 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 8836 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 8837 if (error) 8838 goto out_disable_pci_dev; 8839 8840 /* Set up SLI-3 specific device PCI memory space */ 8841 error = lpfc_sli_pci_mem_setup(phba); 8842 if (error) { 8843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8844 "1402 Failed to set up pci memory space.\n"); 8845 goto out_disable_pci_dev; 8846 } 8847 8848 /* Set up phase-1 common device driver resources */ 8849 error = lpfc_setup_driver_resource_phase1(phba); 8850 if (error) { 8851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8852 "1403 Failed to set up driver resource.\n"); 8853 goto out_unset_pci_mem_s3; 8854 } 8855 8856 /* Set up SLI-3 specific device driver resources */ 8857 error = lpfc_sli_driver_resource_setup(phba); 8858 if (error) { 8859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8860 "1404 Failed to set up driver resource.\n"); 8861 goto out_unset_pci_mem_s3; 8862 } 8863 8864 /* Initialize and populate the iocb list per host */ 8865 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 8866 if (error) { 8867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8868 "1405 Failed to initialize iocb list.\n"); 8869 goto out_unset_driver_resource_s3; 8870 } 8871 8872 /* Set up common device driver resources */ 8873 error = lpfc_setup_driver_resource_phase2(phba); 8874 if (error) { 8875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8876 "1406 Failed to set up driver resource.\n"); 8877 goto out_free_iocb_list; 8878 } 8879 8880 /* Get the default values for Model Name and Description */ 8881 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 8882 8883 /* Create SCSI host to the physical port */ 8884 error = lpfc_create_shost(phba); 8885 if (error) { 8886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8887 "1407 Failed to create scsi host.\n"); 8888 goto out_unset_driver_resource; 8889 } 8890 8891 /* Configure sysfs attributes */ 8892 vport = phba->pport; 8893 error = lpfc_alloc_sysfs_attr(vport); 8894 if (error) { 8895 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8896 "1476 Failed to allocate sysfs attr\n"); 8897 goto out_destroy_shost; 8898 } 8899 8900 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 8901 /* Now, trying to enable interrupt and bring up the device */ 8902 cfg_mode = phba->cfg_use_msi; 8903 while (true) { 8904 /* Put device to a known state before enabling interrupt */ 8905 lpfc_stop_port(phba); 8906 /* Configure and enable interrupt */ 8907 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 8908 if (intr_mode == LPFC_INTR_ERROR) { 8909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8910 "0431 Failed to enable interrupt.\n"); 8911 error = -ENODEV; 8912 goto out_free_sysfs_attr; 8913 } 8914 /* SLI-3 HBA setup */ 8915 if (lpfc_sli_hba_setup(phba)) { 8916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8917 "1477 Failed to set up hba\n"); 8918 error = -ENODEV; 8919 goto out_remove_device; 8920 } 8921 8922 /* Wait 50ms for the interrupts of previous mailbox commands */ 8923 msleep(50); 8924 /* Check active interrupts on message signaled interrupts */ 8925 if (intr_mode == 0 || 8926 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 8927 /* Log the current active interrupt mode */ 8928 phba->intr_mode = intr_mode; 8929 lpfc_log_intr_mode(phba, intr_mode); 8930 break; 8931 } else { 8932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8933 "0447 Configure interrupt mode (%d) " 8934 "failed active interrupt test.\n", 8935 intr_mode); 8936 /* Disable the current interrupt mode */ 8937 lpfc_sli_disable_intr(phba); 8938 /* Try next level of interrupt mode */ 8939 cfg_mode = --intr_mode; 8940 } 8941 } 8942 8943 /* Perform post initialization setup */ 8944 lpfc_post_init_setup(phba); 8945 8946 /* Check if there are static vports to be created. */ 8947 lpfc_create_static_vport(phba); 8948 8949 return 0; 8950 8951 out_remove_device: 8952 lpfc_unset_hba(phba); 8953 out_free_sysfs_attr: 8954 lpfc_free_sysfs_attr(vport); 8955 out_destroy_shost: 8956 lpfc_destroy_shost(phba); 8957 out_unset_driver_resource: 8958 lpfc_unset_driver_resource_phase2(phba); 8959 out_free_iocb_list: 8960 lpfc_free_iocb_list(phba); 8961 out_unset_driver_resource_s3: 8962 lpfc_sli_driver_resource_unset(phba); 8963 out_unset_pci_mem_s3: 8964 lpfc_sli_pci_mem_unset(phba); 8965 out_disable_pci_dev: 8966 lpfc_disable_pci_dev(phba); 8967 if (shost) 8968 scsi_host_put(shost); 8969 out_free_phba: 8970 lpfc_hba_free(phba); 8971 return error; 8972 } 8973 8974 /** 8975 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 8976 * @pdev: pointer to PCI device 8977 * 8978 * This routine is to be called to disattach a device with SLI-3 interface 8979 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 8980 * removed from PCI bus, it performs all the necessary cleanup for the HBA 8981 * device to be removed from the PCI subsystem properly. 8982 **/ 8983 static void 8984 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 8985 { 8986 struct Scsi_Host *shost = pci_get_drvdata(pdev); 8987 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 8988 struct lpfc_vport **vports; 8989 struct lpfc_hba *phba = vport->phba; 8990 int i; 8991 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 8992 8993 spin_lock_irq(&phba->hbalock); 8994 vport->load_flag |= FC_UNLOADING; 8995 spin_unlock_irq(&phba->hbalock); 8996 8997 lpfc_free_sysfs_attr(vport); 8998 8999 /* Release all the vports against this physical port */ 9000 vports = lpfc_create_vport_work_array(phba); 9001 if (vports != NULL) 9002 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9003 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9004 continue; 9005 fc_vport_terminate(vports[i]->fc_vport); 9006 } 9007 lpfc_destroy_vport_work_array(phba, vports); 9008 9009 /* Remove FC host and then SCSI host with the physical port */ 9010 fc_remove_host(shost); 9011 scsi_remove_host(shost); 9012 lpfc_cleanup(vport); 9013 9014 /* 9015 * Bring down the SLI Layer. This step disable all interrupts, 9016 * clears the rings, discards all mailbox commands, and resets 9017 * the HBA. 9018 */ 9019 9020 /* HBA interrupt will be disabled after this call */ 9021 lpfc_sli_hba_down(phba); 9022 /* Stop kthread signal shall trigger work_done one more time */ 9023 kthread_stop(phba->worker_thread); 9024 /* Final cleanup of txcmplq and reset the HBA */ 9025 lpfc_sli_brdrestart(phba); 9026 9027 kfree(phba->vpi_bmask); 9028 kfree(phba->vpi_ids); 9029 9030 lpfc_stop_hba_timers(phba); 9031 spin_lock_irq(&phba->hbalock); 9032 list_del_init(&vport->listentry); 9033 spin_unlock_irq(&phba->hbalock); 9034 9035 lpfc_debugfs_terminate(vport); 9036 9037 /* Disable SR-IOV if enabled */ 9038 if (phba->cfg_sriov_nr_virtfn) 9039 pci_disable_sriov(pdev); 9040 9041 /* Disable interrupt */ 9042 lpfc_sli_disable_intr(phba); 9043 9044 pci_set_drvdata(pdev, NULL); 9045 scsi_host_put(shost); 9046 9047 /* 9048 * Call scsi_free before mem_free since scsi bufs are released to their 9049 * corresponding pools here. 9050 */ 9051 lpfc_scsi_free(phba); 9052 lpfc_mem_free_all(phba); 9053 9054 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 9055 phba->hbqslimp.virt, phba->hbqslimp.phys); 9056 9057 /* Free resources associated with SLI2 interface */ 9058 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 9059 phba->slim2p.virt, phba->slim2p.phys); 9060 9061 /* unmap adapter SLIM and Control Registers */ 9062 iounmap(phba->ctrl_regs_memmap_p); 9063 iounmap(phba->slim_memmap_p); 9064 9065 lpfc_hba_free(phba); 9066 9067 pci_release_selected_regions(pdev, bars); 9068 pci_disable_device(pdev); 9069 } 9070 9071 /** 9072 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 9073 * @pdev: pointer to PCI device 9074 * @msg: power management message 9075 * 9076 * This routine is to be called from the kernel's PCI subsystem to support 9077 * system Power Management (PM) to device with SLI-3 interface spec. When 9078 * PM invokes this method, it quiesces the device by stopping the driver's 9079 * worker thread for the device, turning off device's interrupt and DMA, 9080 * and bring the device offline. Note that as the driver implements the 9081 * minimum PM requirements to a power-aware driver's PM support for the 9082 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9083 * to the suspend() method call will be treated as SUSPEND and the driver will 9084 * fully reinitialize its device during resume() method call, the driver will 9085 * set device to PCI_D3hot state in PCI config space instead of setting it 9086 * according to the @msg provided by the PM. 9087 * 9088 * Return code 9089 * 0 - driver suspended the device 9090 * Error otherwise 9091 **/ 9092 static int 9093 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 9094 { 9095 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9096 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9097 9098 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9099 "0473 PCI device Power Management suspend.\n"); 9100 9101 /* Bring down the device */ 9102 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9103 lpfc_offline(phba); 9104 kthread_stop(phba->worker_thread); 9105 9106 /* Disable interrupt from device */ 9107 lpfc_sli_disable_intr(phba); 9108 9109 /* Save device state to PCI config space */ 9110 pci_save_state(pdev); 9111 pci_set_power_state(pdev, PCI_D3hot); 9112 9113 return 0; 9114 } 9115 9116 /** 9117 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 9118 * @pdev: pointer to PCI device 9119 * 9120 * This routine is to be called from the kernel's PCI subsystem to support 9121 * system Power Management (PM) to device with SLI-3 interface spec. When PM 9122 * invokes this method, it restores the device's PCI config space state and 9123 * fully reinitializes the device and brings it online. Note that as the 9124 * driver implements the minimum PM requirements to a power-aware driver's 9125 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 9126 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 9127 * driver will fully reinitialize its device during resume() method call, 9128 * the device will be set to PCI_D0 directly in PCI config space before 9129 * restoring the state. 9130 * 9131 * Return code 9132 * 0 - driver suspended the device 9133 * Error otherwise 9134 **/ 9135 static int 9136 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 9137 { 9138 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9139 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9140 uint32_t intr_mode; 9141 int error; 9142 9143 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9144 "0452 PCI device Power Management resume.\n"); 9145 9146 /* Restore device state from PCI config space */ 9147 pci_set_power_state(pdev, PCI_D0); 9148 pci_restore_state(pdev); 9149 9150 /* 9151 * As the new kernel behavior of pci_restore_state() API call clears 9152 * device saved_state flag, need to save the restored state again. 9153 */ 9154 pci_save_state(pdev); 9155 9156 if (pdev->is_busmaster) 9157 pci_set_master(pdev); 9158 9159 /* Startup the kernel thread for this host adapter. */ 9160 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9161 "lpfc_worker_%d", phba->brd_no); 9162 if (IS_ERR(phba->worker_thread)) { 9163 error = PTR_ERR(phba->worker_thread); 9164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9165 "0434 PM resume failed to start worker " 9166 "thread: error=x%x.\n", error); 9167 return error; 9168 } 9169 9170 /* Configure and enable interrupt */ 9171 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9172 if (intr_mode == LPFC_INTR_ERROR) { 9173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9174 "0430 PM resume Failed to enable interrupt\n"); 9175 return -EIO; 9176 } else 9177 phba->intr_mode = intr_mode; 9178 9179 /* Restart HBA and bring it online */ 9180 lpfc_sli_brdrestart(phba); 9181 lpfc_online(phba); 9182 9183 /* Log the current active interrupt mode */ 9184 lpfc_log_intr_mode(phba, phba->intr_mode); 9185 9186 return 0; 9187 } 9188 9189 /** 9190 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 9191 * @phba: pointer to lpfc hba data structure. 9192 * 9193 * This routine is called to prepare the SLI3 device for PCI slot recover. It 9194 * aborts all the outstanding SCSI I/Os to the pci device. 9195 **/ 9196 static void 9197 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 9198 { 9199 struct lpfc_sli *psli = &phba->sli; 9200 struct lpfc_sli_ring *pring; 9201 9202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9203 "2723 PCI channel I/O abort preparing for recovery\n"); 9204 9205 /* 9206 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9207 * and let the SCSI mid-layer to retry them to recover. 9208 */ 9209 pring = &psli->ring[psli->fcp_ring]; 9210 lpfc_sli_abort_iocb_ring(phba, pring); 9211 } 9212 9213 /** 9214 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 9215 * @phba: pointer to lpfc hba data structure. 9216 * 9217 * This routine is called to prepare the SLI3 device for PCI slot reset. It 9218 * disables the device interrupt and pci device, and aborts the internal FCP 9219 * pending I/Os. 9220 **/ 9221 static void 9222 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 9223 { 9224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9225 "2710 PCI channel disable preparing for reset\n"); 9226 9227 /* Block any management I/Os to the device */ 9228 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 9229 9230 /* Block all SCSI devices' I/Os on the host */ 9231 lpfc_scsi_dev_block(phba); 9232 9233 /* stop all timers */ 9234 lpfc_stop_hba_timers(phba); 9235 9236 /* Disable interrupt and pci device */ 9237 lpfc_sli_disable_intr(phba); 9238 pci_disable_device(phba->pcidev); 9239 9240 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 9241 lpfc_sli_flush_fcp_rings(phba); 9242 } 9243 9244 /** 9245 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 9246 * @phba: pointer to lpfc hba data structure. 9247 * 9248 * This routine is called to prepare the SLI3 device for PCI slot permanently 9249 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 9250 * pending I/Os. 9251 **/ 9252 static void 9253 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 9254 { 9255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9256 "2711 PCI channel permanent disable for failure\n"); 9257 /* Block all SCSI devices' I/Os on the host */ 9258 lpfc_scsi_dev_block(phba); 9259 9260 /* stop all timers */ 9261 lpfc_stop_hba_timers(phba); 9262 9263 /* Clean up all driver's outstanding SCSI I/Os */ 9264 lpfc_sli_flush_fcp_rings(phba); 9265 } 9266 9267 /** 9268 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 9269 * @pdev: pointer to PCI device. 9270 * @state: the current PCI connection state. 9271 * 9272 * This routine is called from the PCI subsystem for I/O error handling to 9273 * device with SLI-3 interface spec. This function is called by the PCI 9274 * subsystem after a PCI bus error affecting this device has been detected. 9275 * When this function is invoked, it will need to stop all the I/Os and 9276 * interrupt(s) to the device. Once that is done, it will return 9277 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 9278 * as desired. 9279 * 9280 * Return codes 9281 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 9282 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 9283 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9284 **/ 9285 static pci_ers_result_t 9286 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 9287 { 9288 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9289 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9290 9291 switch (state) { 9292 case pci_channel_io_normal: 9293 /* Non-fatal error, prepare for recovery */ 9294 lpfc_sli_prep_dev_for_recover(phba); 9295 return PCI_ERS_RESULT_CAN_RECOVER; 9296 case pci_channel_io_frozen: 9297 /* Fatal error, prepare for slot reset */ 9298 lpfc_sli_prep_dev_for_reset(phba); 9299 return PCI_ERS_RESULT_NEED_RESET; 9300 case pci_channel_io_perm_failure: 9301 /* Permanent failure, prepare for device down */ 9302 lpfc_sli_prep_dev_for_perm_failure(phba); 9303 return PCI_ERS_RESULT_DISCONNECT; 9304 default: 9305 /* Unknown state, prepare and request slot reset */ 9306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9307 "0472 Unknown PCI error state: x%x\n", state); 9308 lpfc_sli_prep_dev_for_reset(phba); 9309 return PCI_ERS_RESULT_NEED_RESET; 9310 } 9311 } 9312 9313 /** 9314 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 9315 * @pdev: pointer to PCI device. 9316 * 9317 * This routine is called from the PCI subsystem for error handling to 9318 * device with SLI-3 interface spec. This is called after PCI bus has been 9319 * reset to restart the PCI card from scratch, as if from a cold-boot. 9320 * During the PCI subsystem error recovery, after driver returns 9321 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 9322 * recovery and then call this routine before calling the .resume method 9323 * to recover the device. This function will initialize the HBA device, 9324 * enable the interrupt, but it will just put the HBA to offline state 9325 * without passing any I/O traffic. 9326 * 9327 * Return codes 9328 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 9329 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 9330 */ 9331 static pci_ers_result_t 9332 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 9333 { 9334 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9335 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9336 struct lpfc_sli *psli = &phba->sli; 9337 uint32_t intr_mode; 9338 9339 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 9340 if (pci_enable_device_mem(pdev)) { 9341 printk(KERN_ERR "lpfc: Cannot re-enable " 9342 "PCI device after reset.\n"); 9343 return PCI_ERS_RESULT_DISCONNECT; 9344 } 9345 9346 pci_restore_state(pdev); 9347 9348 /* 9349 * As the new kernel behavior of pci_restore_state() API call clears 9350 * device saved_state flag, need to save the restored state again. 9351 */ 9352 pci_save_state(pdev); 9353 9354 if (pdev->is_busmaster) 9355 pci_set_master(pdev); 9356 9357 spin_lock_irq(&phba->hbalock); 9358 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 9359 spin_unlock_irq(&phba->hbalock); 9360 9361 /* Configure and enable interrupt */ 9362 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 9363 if (intr_mode == LPFC_INTR_ERROR) { 9364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9365 "0427 Cannot re-enable interrupt after " 9366 "slot reset.\n"); 9367 return PCI_ERS_RESULT_DISCONNECT; 9368 } else 9369 phba->intr_mode = intr_mode; 9370 9371 /* Take device offline, it will perform cleanup */ 9372 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9373 lpfc_offline(phba); 9374 lpfc_sli_brdrestart(phba); 9375 9376 /* Log the current active interrupt mode */ 9377 lpfc_log_intr_mode(phba, phba->intr_mode); 9378 9379 return PCI_ERS_RESULT_RECOVERED; 9380 } 9381 9382 /** 9383 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 9384 * @pdev: pointer to PCI device 9385 * 9386 * This routine is called from the PCI subsystem for error handling to device 9387 * with SLI-3 interface spec. It is called when kernel error recovery tells 9388 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 9389 * error recovery. After this call, traffic can start to flow from this device 9390 * again. 9391 */ 9392 static void 9393 lpfc_io_resume_s3(struct pci_dev *pdev) 9394 { 9395 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9396 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9397 9398 /* Bring device online, it will be no-op for non-fatal error resume */ 9399 lpfc_online(phba); 9400 9401 /* Clean up Advanced Error Reporting (AER) if needed */ 9402 if (phba->hba_flag & HBA_AER_ENABLED) 9403 pci_cleanup_aer_uncorrect_error_status(pdev); 9404 } 9405 9406 /** 9407 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 9408 * @phba: pointer to lpfc hba data structure. 9409 * 9410 * returns the number of ELS/CT IOCBs to reserve 9411 **/ 9412 int 9413 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 9414 { 9415 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 9416 9417 if (phba->sli_rev == LPFC_SLI_REV4) { 9418 if (max_xri <= 100) 9419 return 10; 9420 else if (max_xri <= 256) 9421 return 25; 9422 else if (max_xri <= 512) 9423 return 50; 9424 else if (max_xri <= 1024) 9425 return 100; 9426 else if (max_xri <= 1536) 9427 return 150; 9428 else if (max_xri <= 2048) 9429 return 200; 9430 else 9431 return 250; 9432 } else 9433 return 0; 9434 } 9435 9436 /** 9437 * lpfc_write_firmware - attempt to write a firmware image to the port 9438 * @fw: pointer to firmware image returned from request_firmware. 9439 * @phba: pointer to lpfc hba data structure. 9440 * 9441 **/ 9442 static void 9443 lpfc_write_firmware(const struct firmware *fw, void *context) 9444 { 9445 struct lpfc_hba *phba = (struct lpfc_hba *)context; 9446 char fwrev[FW_REV_STR_SIZE]; 9447 struct lpfc_grp_hdr *image; 9448 struct list_head dma_buffer_list; 9449 int i, rc = 0; 9450 struct lpfc_dmabuf *dmabuf, *next; 9451 uint32_t offset = 0, temp_offset = 0; 9452 9453 /* It can be null in no-wait mode, sanity check */ 9454 if (!fw) { 9455 rc = -ENXIO; 9456 goto out; 9457 } 9458 image = (struct lpfc_grp_hdr *)fw->data; 9459 9460 INIT_LIST_HEAD(&dma_buffer_list); 9461 if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) || 9462 (bf_get_be32(lpfc_grp_hdr_file_type, image) != 9463 LPFC_FILE_TYPE_GROUP) || 9464 (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || 9465 (be32_to_cpu(image->size) != fw->size)) { 9466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9467 "3022 Invalid FW image found. " 9468 "Magic:%x Type:%x ID:%x\n", 9469 be32_to_cpu(image->magic_number), 9470 bf_get_be32(lpfc_grp_hdr_file_type, image), 9471 bf_get_be32(lpfc_grp_hdr_id, image)); 9472 rc = -EINVAL; 9473 goto release_out; 9474 } 9475 lpfc_decode_firmware_rev(phba, fwrev, 1); 9476 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 9477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9478 "3023 Updating Firmware, Current Version:%s " 9479 "New Version:%s\n", 9480 fwrev, image->revision); 9481 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 9482 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 9483 GFP_KERNEL); 9484 if (!dmabuf) { 9485 rc = -ENOMEM; 9486 goto release_out; 9487 } 9488 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 9489 SLI4_PAGE_SIZE, 9490 &dmabuf->phys, 9491 GFP_KERNEL); 9492 if (!dmabuf->virt) { 9493 kfree(dmabuf); 9494 rc = -ENOMEM; 9495 goto release_out; 9496 } 9497 list_add_tail(&dmabuf->list, &dma_buffer_list); 9498 } 9499 while (offset < fw->size) { 9500 temp_offset = offset; 9501 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 9502 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 9503 memcpy(dmabuf->virt, 9504 fw->data + temp_offset, 9505 fw->size - temp_offset); 9506 temp_offset = fw->size; 9507 break; 9508 } 9509 memcpy(dmabuf->virt, fw->data + temp_offset, 9510 SLI4_PAGE_SIZE); 9511 temp_offset += SLI4_PAGE_SIZE; 9512 } 9513 rc = lpfc_wr_object(phba, &dma_buffer_list, 9514 (fw->size - offset), &offset); 9515 if (rc) 9516 goto release_out; 9517 } 9518 rc = offset; 9519 } 9520 9521 release_out: 9522 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 9523 list_del(&dmabuf->list); 9524 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 9525 dmabuf->virt, dmabuf->phys); 9526 kfree(dmabuf); 9527 } 9528 release_firmware(fw); 9529 out: 9530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9531 "3024 Firmware update done: %d.\n", rc); 9532 return; 9533 } 9534 9535 /** 9536 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 9537 * @phba: pointer to lpfc hba data structure. 9538 * 9539 * This routine is called to perform Linux generic firmware upgrade on device 9540 * that supports such feature. 9541 **/ 9542 int 9543 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 9544 { 9545 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 9546 int ret; 9547 const struct firmware *fw; 9548 9549 /* Only supported on SLI4 interface type 2 for now */ 9550 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 9551 LPFC_SLI_INTF_IF_TYPE_2) 9552 return -EPERM; 9553 9554 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 9555 9556 if (fw_upgrade == INT_FW_UPGRADE) { 9557 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 9558 file_name, &phba->pcidev->dev, 9559 GFP_KERNEL, (void *)phba, 9560 lpfc_write_firmware); 9561 } else if (fw_upgrade == RUN_FW_UPGRADE) { 9562 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 9563 if (!ret) 9564 lpfc_write_firmware(fw, (void *)phba); 9565 } else { 9566 ret = -EINVAL; 9567 } 9568 9569 return ret; 9570 } 9571 9572 /** 9573 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 9574 * @pdev: pointer to PCI device 9575 * @pid: pointer to PCI device identifier 9576 * 9577 * This routine is called from the kernel's PCI subsystem to device with 9578 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9579 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 9580 * information of the device and driver to see if the driver state that it 9581 * can support this kind of device. If the match is successful, the driver 9582 * core invokes this routine. If this routine determines it can claim the HBA, 9583 * it does all the initialization that it needs to do to handle the HBA 9584 * properly. 9585 * 9586 * Return code 9587 * 0 - driver can claim the device 9588 * negative value - driver can not claim the device 9589 **/ 9590 static int 9591 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 9592 { 9593 struct lpfc_hba *phba; 9594 struct lpfc_vport *vport = NULL; 9595 struct Scsi_Host *shost = NULL; 9596 int error, ret; 9597 uint32_t cfg_mode, intr_mode; 9598 int mcnt; 9599 int adjusted_fcp_io_channel; 9600 9601 /* Allocate memory for HBA structure */ 9602 phba = lpfc_hba_alloc(pdev); 9603 if (!phba) 9604 return -ENOMEM; 9605 9606 /* Perform generic PCI device enabling operation */ 9607 error = lpfc_enable_pci_dev(phba); 9608 if (error) 9609 goto out_free_phba; 9610 9611 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 9612 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 9613 if (error) 9614 goto out_disable_pci_dev; 9615 9616 /* Set up SLI-4 specific device PCI memory space */ 9617 error = lpfc_sli4_pci_mem_setup(phba); 9618 if (error) { 9619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9620 "1410 Failed to set up pci memory space.\n"); 9621 goto out_disable_pci_dev; 9622 } 9623 9624 /* Set up phase-1 common device driver resources */ 9625 error = lpfc_setup_driver_resource_phase1(phba); 9626 if (error) { 9627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9628 "1411 Failed to set up driver resource.\n"); 9629 goto out_unset_pci_mem_s4; 9630 } 9631 9632 /* Set up SLI-4 Specific device driver resources */ 9633 error = lpfc_sli4_driver_resource_setup(phba); 9634 if (error) { 9635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9636 "1412 Failed to set up driver resource.\n"); 9637 goto out_unset_pci_mem_s4; 9638 } 9639 9640 /* Initialize and populate the iocb list per host */ 9641 9642 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9643 "2821 initialize iocb list %d.\n", 9644 phba->cfg_iocb_cnt*1024); 9645 error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024); 9646 9647 if (error) { 9648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9649 "1413 Failed to initialize iocb list.\n"); 9650 goto out_unset_driver_resource_s4; 9651 } 9652 9653 INIT_LIST_HEAD(&phba->active_rrq_list); 9654 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 9655 9656 /* Set up common device driver resources */ 9657 error = lpfc_setup_driver_resource_phase2(phba); 9658 if (error) { 9659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9660 "1414 Failed to set up driver resource.\n"); 9661 goto out_free_iocb_list; 9662 } 9663 9664 /* Get the default values for Model Name and Description */ 9665 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 9666 9667 /* Create SCSI host to the physical port */ 9668 error = lpfc_create_shost(phba); 9669 if (error) { 9670 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9671 "1415 Failed to create scsi host.\n"); 9672 goto out_unset_driver_resource; 9673 } 9674 9675 /* Configure sysfs attributes */ 9676 vport = phba->pport; 9677 error = lpfc_alloc_sysfs_attr(vport); 9678 if (error) { 9679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9680 "1416 Failed to allocate sysfs attr\n"); 9681 goto out_destroy_shost; 9682 } 9683 9684 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 9685 /* Now, trying to enable interrupt and bring up the device */ 9686 cfg_mode = phba->cfg_use_msi; 9687 while (true) { 9688 /* Put device to a known state before enabling interrupt */ 9689 lpfc_stop_port(phba); 9690 /* Configure and enable interrupt */ 9691 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 9692 if (intr_mode == LPFC_INTR_ERROR) { 9693 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9694 "0426 Failed to enable interrupt.\n"); 9695 error = -ENODEV; 9696 goto out_free_sysfs_attr; 9697 } 9698 /* Default to single EQ for non-MSI-X */ 9699 if (phba->intr_type != MSIX) 9700 adjusted_fcp_io_channel = 1; 9701 else 9702 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel; 9703 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel; 9704 /* Set up SLI-4 HBA */ 9705 if (lpfc_sli4_hba_setup(phba)) { 9706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9707 "1421 Failed to set up hba\n"); 9708 error = -ENODEV; 9709 goto out_disable_intr; 9710 } 9711 9712 /* Send NOP mbx cmds for non-INTx mode active interrupt test */ 9713 if (intr_mode != 0) 9714 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba, 9715 LPFC_ACT_INTR_CNT); 9716 9717 /* Check active interrupts received only for MSI/MSI-X */ 9718 if (intr_mode == 0 || 9719 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) { 9720 /* Log the current active interrupt mode */ 9721 phba->intr_mode = intr_mode; 9722 lpfc_log_intr_mode(phba, intr_mode); 9723 break; 9724 } 9725 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9726 "0451 Configure interrupt mode (%d) " 9727 "failed active interrupt test.\n", 9728 intr_mode); 9729 /* Unset the previous SLI-4 HBA setup. */ 9730 /* 9731 * TODO: Is this operation compatible with IF TYPE 2 9732 * devices? All port state is deleted and cleared. 9733 */ 9734 lpfc_sli4_unset_hba(phba); 9735 /* Try next level of interrupt mode */ 9736 cfg_mode = --intr_mode; 9737 } 9738 9739 /* Perform post initialization setup */ 9740 lpfc_post_init_setup(phba); 9741 9742 /* check for firmware upgrade or downgrade */ 9743 if (phba->cfg_request_firmware_upgrade) 9744 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 9745 9746 /* Check if there are static vports to be created. */ 9747 lpfc_create_static_vport(phba); 9748 return 0; 9749 9750 out_disable_intr: 9751 lpfc_sli4_disable_intr(phba); 9752 out_free_sysfs_attr: 9753 lpfc_free_sysfs_attr(vport); 9754 out_destroy_shost: 9755 lpfc_destroy_shost(phba); 9756 out_unset_driver_resource: 9757 lpfc_unset_driver_resource_phase2(phba); 9758 out_free_iocb_list: 9759 lpfc_free_iocb_list(phba); 9760 out_unset_driver_resource_s4: 9761 lpfc_sli4_driver_resource_unset(phba); 9762 out_unset_pci_mem_s4: 9763 lpfc_sli4_pci_mem_unset(phba); 9764 out_disable_pci_dev: 9765 lpfc_disable_pci_dev(phba); 9766 if (shost) 9767 scsi_host_put(shost); 9768 out_free_phba: 9769 lpfc_hba_free(phba); 9770 return error; 9771 } 9772 9773 /** 9774 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 9775 * @pdev: pointer to PCI device 9776 * 9777 * This routine is called from the kernel's PCI subsystem to device with 9778 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 9779 * removed from PCI bus, it performs all the necessary cleanup for the HBA 9780 * device to be removed from the PCI subsystem properly. 9781 **/ 9782 static void 9783 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 9784 { 9785 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9786 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 9787 struct lpfc_vport **vports; 9788 struct lpfc_hba *phba = vport->phba; 9789 int i; 9790 9791 /* Mark the device unloading flag */ 9792 spin_lock_irq(&phba->hbalock); 9793 vport->load_flag |= FC_UNLOADING; 9794 spin_unlock_irq(&phba->hbalock); 9795 9796 /* Free the HBA sysfs attributes */ 9797 lpfc_free_sysfs_attr(vport); 9798 9799 /* Release all the vports against this physical port */ 9800 vports = lpfc_create_vport_work_array(phba); 9801 if (vports != NULL) 9802 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 9803 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 9804 continue; 9805 fc_vport_terminate(vports[i]->fc_vport); 9806 } 9807 lpfc_destroy_vport_work_array(phba, vports); 9808 9809 /* Remove FC host and then SCSI host with the physical port */ 9810 fc_remove_host(shost); 9811 scsi_remove_host(shost); 9812 9813 /* Perform cleanup on the physical port */ 9814 lpfc_cleanup(vport); 9815 9816 /* 9817 * Bring down the SLI Layer. This step disables all interrupts, 9818 * clears the rings, discards all mailbox commands, and resets 9819 * the HBA FCoE function. 9820 */ 9821 lpfc_debugfs_terminate(vport); 9822 lpfc_sli4_hba_unset(phba); 9823 9824 spin_lock_irq(&phba->hbalock); 9825 list_del_init(&vport->listentry); 9826 spin_unlock_irq(&phba->hbalock); 9827 9828 /* Perform scsi free before driver resource_unset since scsi 9829 * buffers are released to their corresponding pools here. 9830 */ 9831 lpfc_scsi_free(phba); 9832 9833 lpfc_sli4_driver_resource_unset(phba); 9834 9835 /* Unmap adapter Control and Doorbell registers */ 9836 lpfc_sli4_pci_mem_unset(phba); 9837 9838 /* Release PCI resources and disable device's PCI function */ 9839 scsi_host_put(shost); 9840 lpfc_disable_pci_dev(phba); 9841 9842 /* Finally, free the driver's device data structure */ 9843 lpfc_hba_free(phba); 9844 9845 return; 9846 } 9847 9848 /** 9849 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 9850 * @pdev: pointer to PCI device 9851 * @msg: power management message 9852 * 9853 * This routine is called from the kernel's PCI subsystem to support system 9854 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 9855 * this method, it quiesces the device by stopping the driver's worker 9856 * thread for the device, turning off device's interrupt and DMA, and bring 9857 * the device offline. Note that as the driver implements the minimum PM 9858 * requirements to a power-aware driver's PM support for suspend/resume -- all 9859 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 9860 * method call will be treated as SUSPEND and the driver will fully 9861 * reinitialize its device during resume() method call, the driver will set 9862 * device to PCI_D3hot state in PCI config space instead of setting it 9863 * according to the @msg provided by the PM. 9864 * 9865 * Return code 9866 * 0 - driver suspended the device 9867 * Error otherwise 9868 **/ 9869 static int 9870 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 9871 { 9872 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9873 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9874 9875 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9876 "2843 PCI device Power Management suspend.\n"); 9877 9878 /* Bring down the device */ 9879 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 9880 lpfc_offline(phba); 9881 kthread_stop(phba->worker_thread); 9882 9883 /* Disable interrupt from device */ 9884 lpfc_sli4_disable_intr(phba); 9885 lpfc_sli4_queue_destroy(phba); 9886 9887 /* Save device state to PCI config space */ 9888 pci_save_state(pdev); 9889 pci_set_power_state(pdev, PCI_D3hot); 9890 9891 return 0; 9892 } 9893 9894 /** 9895 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 9896 * @pdev: pointer to PCI device 9897 * 9898 * This routine is called from the kernel's PCI subsystem to support system 9899 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 9900 * this method, it restores the device's PCI config space state and fully 9901 * reinitializes the device and brings it online. Note that as the driver 9902 * implements the minimum PM requirements to a power-aware driver's PM for 9903 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 9904 * to the suspend() method call will be treated as SUSPEND and the driver 9905 * will fully reinitialize its device during resume() method call, the device 9906 * will be set to PCI_D0 directly in PCI config space before restoring the 9907 * state. 9908 * 9909 * Return code 9910 * 0 - driver suspended the device 9911 * Error otherwise 9912 **/ 9913 static int 9914 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 9915 { 9916 struct Scsi_Host *shost = pci_get_drvdata(pdev); 9917 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 9918 uint32_t intr_mode; 9919 int error; 9920 9921 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9922 "0292 PCI device Power Management resume.\n"); 9923 9924 /* Restore device state from PCI config space */ 9925 pci_set_power_state(pdev, PCI_D0); 9926 pci_restore_state(pdev); 9927 9928 /* 9929 * As the new kernel behavior of pci_restore_state() API call clears 9930 * device saved_state flag, need to save the restored state again. 9931 */ 9932 pci_save_state(pdev); 9933 9934 if (pdev->is_busmaster) 9935 pci_set_master(pdev); 9936 9937 /* Startup the kernel thread for this host adapter. */ 9938 phba->worker_thread = kthread_run(lpfc_do_work, phba, 9939 "lpfc_worker_%d", phba->brd_no); 9940 if (IS_ERR(phba->worker_thread)) { 9941 error = PTR_ERR(phba->worker_thread); 9942 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9943 "0293 PM resume failed to start worker " 9944 "thread: error=x%x.\n", error); 9945 return error; 9946 } 9947 9948 /* Configure and enable interrupt */ 9949 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 9950 if (intr_mode == LPFC_INTR_ERROR) { 9951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9952 "0294 PM resume Failed to enable interrupt\n"); 9953 return -EIO; 9954 } else 9955 phba->intr_mode = intr_mode; 9956 9957 /* Restart HBA and bring it online */ 9958 lpfc_sli_brdrestart(phba); 9959 lpfc_online(phba); 9960 9961 /* Log the current active interrupt mode */ 9962 lpfc_log_intr_mode(phba, phba->intr_mode); 9963 9964 return 0; 9965 } 9966 9967 /** 9968 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 9969 * @phba: pointer to lpfc hba data structure. 9970 * 9971 * This routine is called to prepare the SLI4 device for PCI slot recover. It 9972 * aborts all the outstanding SCSI I/Os to the pci device. 9973 **/ 9974 static void 9975 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 9976 { 9977 struct lpfc_sli *psli = &phba->sli; 9978 struct lpfc_sli_ring *pring; 9979 9980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9981 "2828 PCI channel I/O abort preparing for recovery\n"); 9982 /* 9983 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 9984 * and let the SCSI mid-layer to retry them to recover. 9985 */ 9986 pring = &psli->ring[psli->fcp_ring]; 9987 lpfc_sli_abort_iocb_ring(phba, pring); 9988 } 9989 9990 /** 9991 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 9992 * @phba: pointer to lpfc hba data structure. 9993 * 9994 * This routine is called to prepare the SLI4 device for PCI slot reset. It 9995 * disables the device interrupt and pci device, and aborts the internal FCP 9996 * pending I/Os. 9997 **/ 9998 static void 9999 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 10000 { 10001 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10002 "2826 PCI channel disable preparing for reset\n"); 10003 10004 /* Block any management I/Os to the device */ 10005 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 10006 10007 /* Block all SCSI devices' I/Os on the host */ 10008 lpfc_scsi_dev_block(phba); 10009 10010 /* stop all timers */ 10011 lpfc_stop_hba_timers(phba); 10012 10013 /* Disable interrupt and pci device */ 10014 lpfc_sli4_disable_intr(phba); 10015 lpfc_sli4_queue_destroy(phba); 10016 pci_disable_device(phba->pcidev); 10017 10018 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10019 lpfc_sli_flush_fcp_rings(phba); 10020 } 10021 10022 /** 10023 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 10024 * @phba: pointer to lpfc hba data structure. 10025 * 10026 * This routine is called to prepare the SLI4 device for PCI slot permanently 10027 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10028 * pending I/Os. 10029 **/ 10030 static void 10031 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10032 { 10033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10034 "2827 PCI channel permanent disable for failure\n"); 10035 10036 /* Block all SCSI devices' I/Os on the host */ 10037 lpfc_scsi_dev_block(phba); 10038 10039 /* stop all timers */ 10040 lpfc_stop_hba_timers(phba); 10041 10042 /* Clean up all driver's outstanding SCSI I/Os */ 10043 lpfc_sli_flush_fcp_rings(phba); 10044 } 10045 10046 /** 10047 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 10048 * @pdev: pointer to PCI device. 10049 * @state: the current PCI connection state. 10050 * 10051 * This routine is called from the PCI subsystem for error handling to device 10052 * with SLI-4 interface spec. This function is called by the PCI subsystem 10053 * after a PCI bus error affecting this device has been detected. When this 10054 * function is invoked, it will need to stop all the I/Os and interrupt(s) 10055 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 10056 * for the PCI subsystem to perform proper recovery as desired. 10057 * 10058 * Return codes 10059 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10060 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10061 **/ 10062 static pci_ers_result_t 10063 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 10064 { 10065 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10067 10068 switch (state) { 10069 case pci_channel_io_normal: 10070 /* Non-fatal error, prepare for recovery */ 10071 lpfc_sli4_prep_dev_for_recover(phba); 10072 return PCI_ERS_RESULT_CAN_RECOVER; 10073 case pci_channel_io_frozen: 10074 /* Fatal error, prepare for slot reset */ 10075 lpfc_sli4_prep_dev_for_reset(phba); 10076 return PCI_ERS_RESULT_NEED_RESET; 10077 case pci_channel_io_perm_failure: 10078 /* Permanent failure, prepare for device down */ 10079 lpfc_sli4_prep_dev_for_perm_failure(phba); 10080 return PCI_ERS_RESULT_DISCONNECT; 10081 default: 10082 /* Unknown state, prepare and request slot reset */ 10083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10084 "2825 Unknown PCI error state: x%x\n", state); 10085 lpfc_sli4_prep_dev_for_reset(phba); 10086 return PCI_ERS_RESULT_NEED_RESET; 10087 } 10088 } 10089 10090 /** 10091 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 10092 * @pdev: pointer to PCI device. 10093 * 10094 * This routine is called from the PCI subsystem for error handling to device 10095 * with SLI-4 interface spec. It is called after PCI bus has been reset to 10096 * restart the PCI card from scratch, as if from a cold-boot. During the 10097 * PCI subsystem error recovery, after the driver returns 10098 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10099 * recovery and then call this routine before calling the .resume method to 10100 * recover the device. This function will initialize the HBA device, enable 10101 * the interrupt, but it will just put the HBA to offline state without 10102 * passing any I/O traffic. 10103 * 10104 * Return codes 10105 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10106 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10107 */ 10108 static pci_ers_result_t 10109 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 10110 { 10111 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10112 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10113 struct lpfc_sli *psli = &phba->sli; 10114 uint32_t intr_mode; 10115 10116 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10117 if (pci_enable_device_mem(pdev)) { 10118 printk(KERN_ERR "lpfc: Cannot re-enable " 10119 "PCI device after reset.\n"); 10120 return PCI_ERS_RESULT_DISCONNECT; 10121 } 10122 10123 pci_restore_state(pdev); 10124 10125 /* 10126 * As the new kernel behavior of pci_restore_state() API call clears 10127 * device saved_state flag, need to save the restored state again. 10128 */ 10129 pci_save_state(pdev); 10130 10131 if (pdev->is_busmaster) 10132 pci_set_master(pdev); 10133 10134 spin_lock_irq(&phba->hbalock); 10135 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10136 spin_unlock_irq(&phba->hbalock); 10137 10138 /* Configure and enable interrupt */ 10139 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 10140 if (intr_mode == LPFC_INTR_ERROR) { 10141 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10142 "2824 Cannot re-enable interrupt after " 10143 "slot reset.\n"); 10144 return PCI_ERS_RESULT_DISCONNECT; 10145 } else 10146 phba->intr_mode = intr_mode; 10147 10148 /* Log the current active interrupt mode */ 10149 lpfc_log_intr_mode(phba, phba->intr_mode); 10150 10151 return PCI_ERS_RESULT_RECOVERED; 10152 } 10153 10154 /** 10155 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 10156 * @pdev: pointer to PCI device 10157 * 10158 * This routine is called from the PCI subsystem for error handling to device 10159 * with SLI-4 interface spec. It is called when kernel error recovery tells 10160 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10161 * error recovery. After this call, traffic can start to flow from this device 10162 * again. 10163 **/ 10164 static void 10165 lpfc_io_resume_s4(struct pci_dev *pdev) 10166 { 10167 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10168 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10169 10170 /* 10171 * In case of slot reset, as function reset is performed through 10172 * mailbox command which needs DMA to be enabled, this operation 10173 * has to be moved to the io resume phase. Taking device offline 10174 * will perform the necessary cleanup. 10175 */ 10176 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 10177 /* Perform device reset */ 10178 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10179 lpfc_offline(phba); 10180 lpfc_sli_brdrestart(phba); 10181 /* Bring the device back online */ 10182 lpfc_online(phba); 10183 } 10184 10185 /* Clean up Advanced Error Reporting (AER) if needed */ 10186 if (phba->hba_flag & HBA_AER_ENABLED) 10187 pci_cleanup_aer_uncorrect_error_status(pdev); 10188 } 10189 10190 /** 10191 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 10192 * @pdev: pointer to PCI device 10193 * @pid: pointer to PCI device identifier 10194 * 10195 * This routine is to be registered to the kernel's PCI subsystem. When an 10196 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 10197 * at PCI device-specific information of the device and driver to see if the 10198 * driver state that it can support this kind of device. If the match is 10199 * successful, the driver core invokes this routine. This routine dispatches 10200 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 10201 * do all the initialization that it needs to do to handle the HBA device 10202 * properly. 10203 * 10204 * Return code 10205 * 0 - driver can claim the device 10206 * negative value - driver can not claim the device 10207 **/ 10208 static int 10209 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 10210 { 10211 int rc; 10212 struct lpfc_sli_intf intf; 10213 10214 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 10215 return -ENODEV; 10216 10217 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 10218 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 10219 rc = lpfc_pci_probe_one_s4(pdev, pid); 10220 else 10221 rc = lpfc_pci_probe_one_s3(pdev, pid); 10222 10223 return rc; 10224 } 10225 10226 /** 10227 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 10228 * @pdev: pointer to PCI device 10229 * 10230 * This routine is to be registered to the kernel's PCI subsystem. When an 10231 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 10232 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 10233 * remove routine, which will perform all the necessary cleanup for the 10234 * device to be removed from the PCI subsystem properly. 10235 **/ 10236 static void 10237 lpfc_pci_remove_one(struct pci_dev *pdev) 10238 { 10239 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10240 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10241 10242 switch (phba->pci_dev_grp) { 10243 case LPFC_PCI_DEV_LP: 10244 lpfc_pci_remove_one_s3(pdev); 10245 break; 10246 case LPFC_PCI_DEV_OC: 10247 lpfc_pci_remove_one_s4(pdev); 10248 break; 10249 default: 10250 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10251 "1424 Invalid PCI device group: 0x%x\n", 10252 phba->pci_dev_grp); 10253 break; 10254 } 10255 return; 10256 } 10257 10258 /** 10259 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 10260 * @pdev: pointer to PCI device 10261 * @msg: power management message 10262 * 10263 * This routine is to be registered to the kernel's PCI subsystem to support 10264 * system Power Management (PM). When PM invokes this method, it dispatches 10265 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 10266 * suspend the device. 10267 * 10268 * Return code 10269 * 0 - driver suspended the device 10270 * Error otherwise 10271 **/ 10272 static int 10273 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 10274 { 10275 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10276 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10277 int rc = -ENODEV; 10278 10279 switch (phba->pci_dev_grp) { 10280 case LPFC_PCI_DEV_LP: 10281 rc = lpfc_pci_suspend_one_s3(pdev, msg); 10282 break; 10283 case LPFC_PCI_DEV_OC: 10284 rc = lpfc_pci_suspend_one_s4(pdev, msg); 10285 break; 10286 default: 10287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10288 "1425 Invalid PCI device group: 0x%x\n", 10289 phba->pci_dev_grp); 10290 break; 10291 } 10292 return rc; 10293 } 10294 10295 /** 10296 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 10297 * @pdev: pointer to PCI device 10298 * 10299 * This routine is to be registered to the kernel's PCI subsystem to support 10300 * system Power Management (PM). When PM invokes this method, it dispatches 10301 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 10302 * resume the device. 10303 * 10304 * Return code 10305 * 0 - driver suspended the device 10306 * Error otherwise 10307 **/ 10308 static int 10309 lpfc_pci_resume_one(struct pci_dev *pdev) 10310 { 10311 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10312 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10313 int rc = -ENODEV; 10314 10315 switch (phba->pci_dev_grp) { 10316 case LPFC_PCI_DEV_LP: 10317 rc = lpfc_pci_resume_one_s3(pdev); 10318 break; 10319 case LPFC_PCI_DEV_OC: 10320 rc = lpfc_pci_resume_one_s4(pdev); 10321 break; 10322 default: 10323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10324 "1426 Invalid PCI device group: 0x%x\n", 10325 phba->pci_dev_grp); 10326 break; 10327 } 10328 return rc; 10329 } 10330 10331 /** 10332 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 10333 * @pdev: pointer to PCI device. 10334 * @state: the current PCI connection state. 10335 * 10336 * This routine is registered to the PCI subsystem for error handling. This 10337 * function is called by the PCI subsystem after a PCI bus error affecting 10338 * this device has been detected. When this routine is invoked, it dispatches 10339 * the action to the proper SLI-3 or SLI-4 device error detected handling 10340 * routine, which will perform the proper error detected operation. 10341 * 10342 * Return codes 10343 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10344 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10345 **/ 10346 static pci_ers_result_t 10347 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 10348 { 10349 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10350 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10351 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10352 10353 switch (phba->pci_dev_grp) { 10354 case LPFC_PCI_DEV_LP: 10355 rc = lpfc_io_error_detected_s3(pdev, state); 10356 break; 10357 case LPFC_PCI_DEV_OC: 10358 rc = lpfc_io_error_detected_s4(pdev, state); 10359 break; 10360 default: 10361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10362 "1427 Invalid PCI device group: 0x%x\n", 10363 phba->pci_dev_grp); 10364 break; 10365 } 10366 return rc; 10367 } 10368 10369 /** 10370 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 10371 * @pdev: pointer to PCI device. 10372 * 10373 * This routine is registered to the PCI subsystem for error handling. This 10374 * function is called after PCI bus has been reset to restart the PCI card 10375 * from scratch, as if from a cold-boot. When this routine is invoked, it 10376 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 10377 * routine, which will perform the proper device reset. 10378 * 10379 * Return codes 10380 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10381 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10382 **/ 10383 static pci_ers_result_t 10384 lpfc_io_slot_reset(struct pci_dev *pdev) 10385 { 10386 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10387 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10388 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 10389 10390 switch (phba->pci_dev_grp) { 10391 case LPFC_PCI_DEV_LP: 10392 rc = lpfc_io_slot_reset_s3(pdev); 10393 break; 10394 case LPFC_PCI_DEV_OC: 10395 rc = lpfc_io_slot_reset_s4(pdev); 10396 break; 10397 default: 10398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10399 "1428 Invalid PCI device group: 0x%x\n", 10400 phba->pci_dev_grp); 10401 break; 10402 } 10403 return rc; 10404 } 10405 10406 /** 10407 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 10408 * @pdev: pointer to PCI device 10409 * 10410 * This routine is registered to the PCI subsystem for error handling. It 10411 * is called when kernel error recovery tells the lpfc driver that it is 10412 * OK to resume normal PCI operation after PCI bus error recovery. When 10413 * this routine is invoked, it dispatches the action to the proper SLI-3 10414 * or SLI-4 device io_resume routine, which will resume the device operation. 10415 **/ 10416 static void 10417 lpfc_io_resume(struct pci_dev *pdev) 10418 { 10419 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10420 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10421 10422 switch (phba->pci_dev_grp) { 10423 case LPFC_PCI_DEV_LP: 10424 lpfc_io_resume_s3(pdev); 10425 break; 10426 case LPFC_PCI_DEV_OC: 10427 lpfc_io_resume_s4(pdev); 10428 break; 10429 default: 10430 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10431 "1429 Invalid PCI device group: 0x%x\n", 10432 phba->pci_dev_grp); 10433 break; 10434 } 10435 return; 10436 } 10437 10438 /** 10439 * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace 10440 * @inode: pointer to the inode representing the lpfcmgmt device 10441 * @filep: pointer to the file representing the open lpfcmgmt device 10442 * 10443 * This routine puts a reference count on the lpfc module whenever the 10444 * character device is opened 10445 **/ 10446 static int 10447 lpfc_mgmt_open(struct inode *inode, struct file *filep) 10448 { 10449 try_module_get(THIS_MODULE); 10450 return 0; 10451 } 10452 10453 /** 10454 * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace 10455 * @inode: pointer to the inode representing the lpfcmgmt device 10456 * @filep: pointer to the file representing the open lpfcmgmt device 10457 * 10458 * This routine removes a reference count from the lpfc module when the 10459 * character device is closed 10460 **/ 10461 static int 10462 lpfc_mgmt_release(struct inode *inode, struct file *filep) 10463 { 10464 module_put(THIS_MODULE); 10465 return 0; 10466 } 10467 10468 static struct pci_device_id lpfc_id_table[] = { 10469 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER, 10470 PCI_ANY_ID, PCI_ANY_ID, }, 10471 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY, 10472 PCI_ANY_ID, PCI_ANY_ID, }, 10473 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR, 10474 PCI_ANY_ID, PCI_ANY_ID, }, 10475 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS, 10476 PCI_ANY_ID, PCI_ANY_ID, }, 10477 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR, 10478 PCI_ANY_ID, PCI_ANY_ID, }, 10479 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY, 10480 PCI_ANY_ID, PCI_ANY_ID, }, 10481 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY, 10482 PCI_ANY_ID, PCI_ANY_ID, }, 10483 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY, 10484 PCI_ANY_ID, PCI_ANY_ID, }, 10485 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY, 10486 PCI_ANY_ID, PCI_ANY_ID, }, 10487 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE, 10488 PCI_ANY_ID, PCI_ANY_ID, }, 10489 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP, 10490 PCI_ANY_ID, PCI_ANY_ID, }, 10491 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP, 10492 PCI_ANY_ID, PCI_ANY_ID, }, 10493 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS, 10494 PCI_ANY_ID, PCI_ANY_ID, }, 10495 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP, 10496 PCI_ANY_ID, PCI_ANY_ID, }, 10497 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP, 10498 PCI_ANY_ID, PCI_ANY_ID, }, 10499 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID, 10500 PCI_ANY_ID, PCI_ANY_ID, }, 10501 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB, 10502 PCI_ANY_ID, PCI_ANY_ID, }, 10503 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 10504 PCI_ANY_ID, PCI_ANY_ID, }, 10505 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET, 10506 PCI_ANY_ID, PCI_ANY_ID, }, 10507 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 10508 PCI_ANY_ID, PCI_ANY_ID, }, 10509 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 10510 PCI_ANY_ID, PCI_ANY_ID, }, 10511 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID, 10512 PCI_ANY_ID, PCI_ANY_ID, }, 10513 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB, 10514 PCI_ANY_ID, PCI_ANY_ID, }, 10515 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY, 10516 PCI_ANY_ID, PCI_ANY_ID, }, 10517 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101, 10518 PCI_ANY_ID, PCI_ANY_ID, }, 10519 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S, 10520 PCI_ANY_ID, PCI_ANY_ID, }, 10521 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S, 10522 PCI_ANY_ID, PCI_ANY_ID, }, 10523 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S, 10524 PCI_ANY_ID, PCI_ANY_ID, }, 10525 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT, 10526 PCI_ANY_ID, PCI_ANY_ID, }, 10527 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID, 10528 PCI_ANY_ID, PCI_ANY_ID, }, 10529 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB, 10530 PCI_ANY_ID, PCI_ANY_ID, }, 10531 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP, 10532 PCI_ANY_ID, PCI_ANY_ID, }, 10533 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP, 10534 PCI_ANY_ID, PCI_ANY_ID, }, 10535 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 10536 PCI_ANY_ID, PCI_ANY_ID, }, 10537 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF, 10538 PCI_ANY_ID, PCI_ANY_ID, }, 10539 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF, 10540 PCI_ANY_ID, PCI_ANY_ID, }, 10541 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 10542 PCI_ANY_ID, PCI_ANY_ID, }, 10543 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK, 10544 PCI_ANY_ID, PCI_ANY_ID, }, 10545 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT, 10546 PCI_ANY_ID, PCI_ANY_ID, }, 10547 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON, 10548 PCI_ANY_ID, PCI_ANY_ID, }, 10549 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS, 10550 PCI_ANY_ID, PCI_ANY_ID, }, 10551 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC, 10552 PCI_ANY_ID, PCI_ANY_ID, }, 10553 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE, 10554 PCI_ANY_ID, PCI_ANY_ID, }, 10555 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF, 10556 PCI_ANY_ID, PCI_ANY_ID, }, 10557 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF, 10558 PCI_ANY_ID, PCI_ANY_ID, }, 10559 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK, 10560 PCI_ANY_ID, PCI_ANY_ID, }, 10561 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF, 10562 PCI_ANY_ID, PCI_ANY_ID, }, 10563 { 0 } 10564 }; 10565 10566 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 10567 10568 static const struct pci_error_handlers lpfc_err_handler = { 10569 .error_detected = lpfc_io_error_detected, 10570 .slot_reset = lpfc_io_slot_reset, 10571 .resume = lpfc_io_resume, 10572 }; 10573 10574 static struct pci_driver lpfc_driver = { 10575 .name = LPFC_DRIVER_NAME, 10576 .id_table = lpfc_id_table, 10577 .probe = lpfc_pci_probe_one, 10578 .remove = lpfc_pci_remove_one, 10579 .suspend = lpfc_pci_suspend_one, 10580 .resume = lpfc_pci_resume_one, 10581 .err_handler = &lpfc_err_handler, 10582 }; 10583 10584 static const struct file_operations lpfc_mgmt_fop = { 10585 .open = lpfc_mgmt_open, 10586 .release = lpfc_mgmt_release, 10587 }; 10588 10589 static struct miscdevice lpfc_mgmt_dev = { 10590 .minor = MISC_DYNAMIC_MINOR, 10591 .name = "lpfcmgmt", 10592 .fops = &lpfc_mgmt_fop, 10593 }; 10594 10595 /** 10596 * lpfc_init - lpfc module initialization routine 10597 * 10598 * This routine is to be invoked when the lpfc module is loaded into the 10599 * kernel. The special kernel macro module_init() is used to indicate the 10600 * role of this routine to the kernel as lpfc module entry point. 10601 * 10602 * Return codes 10603 * 0 - successful 10604 * -ENOMEM - FC attach transport failed 10605 * all others - failed 10606 */ 10607 static int __init 10608 lpfc_init(void) 10609 { 10610 int error = 0; 10611 10612 printk(LPFC_MODULE_DESC "\n"); 10613 printk(LPFC_COPYRIGHT "\n"); 10614 10615 error = misc_register(&lpfc_mgmt_dev); 10616 if (error) 10617 printk(KERN_ERR "Could not register lpfcmgmt device, " 10618 "misc_register returned with status %d", error); 10619 10620 if (lpfc_enable_npiv) { 10621 lpfc_transport_functions.vport_create = lpfc_vport_create; 10622 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 10623 } 10624 lpfc_transport_template = 10625 fc_attach_transport(&lpfc_transport_functions); 10626 if (lpfc_transport_template == NULL) 10627 return -ENOMEM; 10628 if (lpfc_enable_npiv) { 10629 lpfc_vport_transport_template = 10630 fc_attach_transport(&lpfc_vport_transport_functions); 10631 if (lpfc_vport_transport_template == NULL) { 10632 fc_release_transport(lpfc_transport_template); 10633 return -ENOMEM; 10634 } 10635 } 10636 error = pci_register_driver(&lpfc_driver); 10637 if (error) { 10638 fc_release_transport(lpfc_transport_template); 10639 if (lpfc_enable_npiv) 10640 fc_release_transport(lpfc_vport_transport_template); 10641 } 10642 10643 return error; 10644 } 10645 10646 /** 10647 * lpfc_exit - lpfc module removal routine 10648 * 10649 * This routine is invoked when the lpfc module is removed from the kernel. 10650 * The special kernel macro module_exit() is used to indicate the role of 10651 * this routine to the kernel as lpfc module exit point. 10652 */ 10653 static void __exit 10654 lpfc_exit(void) 10655 { 10656 misc_deregister(&lpfc_mgmt_dev); 10657 pci_unregister_driver(&lpfc_driver); 10658 fc_release_transport(lpfc_transport_template); 10659 if (lpfc_enable_npiv) 10660 fc_release_transport(lpfc_vport_transport_template); 10661 if (_dump_buf_data) { 10662 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 10663 "_dump_buf_data at 0x%p\n", 10664 (1L << _dump_buf_data_order), _dump_buf_data); 10665 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 10666 } 10667 10668 if (_dump_buf_dif) { 10669 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 10670 "_dump_buf_dif at 0x%p\n", 10671 (1L << _dump_buf_dif_order), _dump_buf_dif); 10672 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 10673 } 10674 } 10675 10676 module_init(lpfc_init); 10677 module_exit(lpfc_exit); 10678 MODULE_LICENSE("GPL"); 10679 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 10680 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com"); 10681 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 10682