1 /******************************************************************* 2 * This file is part of the Emulex Linux Device Driver for * 3 * Fibre Channel Host Bus Adapters. * 4 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term * 5 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. * 6 * Copyright (C) 2004-2016 Emulex. All rights reserved. * 7 * EMULEX and SLI are trademarks of Emulex. * 8 * www.broadcom.com * 9 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 10 * * 11 * This program is free software; you can redistribute it and/or * 12 * modify it under the terms of version 2 of the GNU General * 13 * Public License as published by the Free Software Foundation. * 14 * This program is distributed in the hope that it will be useful. * 15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * 16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * 17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * 18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * 19 * TO BE LEGALLY INVALID. See the GNU General Public License for * 20 * more details, a copy of which can be found in the file COPYING * 21 * included with this package. * 22 *******************************************************************/ 23 24 #include <linux/blkdev.h> 25 #include <linux/delay.h> 26 #include <linux/dma-mapping.h> 27 #include <linux/idr.h> 28 #include <linux/interrupt.h> 29 #include <linux/module.h> 30 #include <linux/kthread.h> 31 #include <linux/pci.h> 32 #include <linux/spinlock.h> 33 #include <linux/ctype.h> 34 #include <linux/aer.h> 35 #include <linux/slab.h> 36 #include <linux/firmware.h> 37 #include <linux/miscdevice.h> 38 #include <linux/percpu.h> 39 #include <linux/msi.h> 40 41 #include <scsi/scsi.h> 42 #include <scsi/scsi_device.h> 43 #include <scsi/scsi_host.h> 44 #include <scsi/scsi_transport_fc.h> 45 #include <scsi/scsi_tcq.h> 46 #include <scsi/fc/fc_fs.h> 47 48 #include <linux/nvme-fc-driver.h> 49 50 #include "lpfc_hw4.h" 51 #include "lpfc_hw.h" 52 #include "lpfc_sli.h" 53 #include "lpfc_sli4.h" 54 #include "lpfc_nl.h" 55 #include "lpfc_disc.h" 56 #include "lpfc.h" 57 #include "lpfc_scsi.h" 58 #include "lpfc_nvme.h" 59 #include "lpfc_nvmet.h" 60 #include "lpfc_logmsg.h" 61 #include "lpfc_crtn.h" 62 #include "lpfc_vport.h" 63 #include "lpfc_version.h" 64 #include "lpfc_ids.h" 65 66 char *_dump_buf_data; 67 unsigned long _dump_buf_data_order; 68 char *_dump_buf_dif; 69 unsigned long _dump_buf_dif_order; 70 spinlock_t _dump_buf_lock; 71 72 /* Used when mapping IRQ vectors in a driver centric manner */ 73 uint16_t *lpfc_used_cpu; 74 uint32_t lpfc_present_cpu; 75 76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 77 static int lpfc_post_rcv_buf(struct lpfc_hba *); 78 static int lpfc_sli4_queue_verify(struct lpfc_hba *); 79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); 80 static int lpfc_setup_endian_order(struct lpfc_hba *); 81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); 82 static void lpfc_free_els_sgl_list(struct lpfc_hba *); 83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); 84 static void lpfc_init_sgl_list(struct lpfc_hba *); 85 static int lpfc_init_active_sgl_array(struct lpfc_hba *); 86 static void lpfc_free_active_sgl(struct lpfc_hba *); 87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); 88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); 89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); 90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); 91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); 92 static void lpfc_sli4_disable_intr(struct lpfc_hba *); 93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); 94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); 95 96 static struct scsi_transport_template *lpfc_transport_template = NULL; 97 static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 98 static DEFINE_IDR(lpfc_hba_index); 99 #define LPFC_NVMET_BUF_POST 254 100 101 /** 102 * lpfc_config_port_prep - Perform lpfc initialization prior to config port 103 * @phba: pointer to lpfc hba data structure. 104 * 105 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT 106 * mailbox command. It retrieves the revision information from the HBA and 107 * collects the Vital Product Data (VPD) about the HBA for preparing the 108 * configuration of the HBA. 109 * 110 * Return codes: 111 * 0 - success. 112 * -ERESTART - requests the SLI layer to reset the HBA and try again. 113 * Any other value - indicates an error. 114 **/ 115 int 116 lpfc_config_port_prep(struct lpfc_hba *phba) 117 { 118 lpfc_vpd_t *vp = &phba->vpd; 119 int i = 0, rc; 120 LPFC_MBOXQ_t *pmb; 121 MAILBOX_t *mb; 122 char *lpfc_vpd_data = NULL; 123 uint16_t offset = 0; 124 static char licensed[56] = 125 "key unlock for use with gnu public licensed code only\0"; 126 static int init_key = 1; 127 128 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 129 if (!pmb) { 130 phba->link_state = LPFC_HBA_ERROR; 131 return -ENOMEM; 132 } 133 134 mb = &pmb->u.mb; 135 phba->link_state = LPFC_INIT_MBX_CMDS; 136 137 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 138 if (init_key) { 139 uint32_t *ptext = (uint32_t *) licensed; 140 141 for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) 142 *ptext = cpu_to_be32(*ptext); 143 init_key = 0; 144 } 145 146 lpfc_read_nv(phba, pmb); 147 memset((char*)mb->un.varRDnvp.rsvd3, 0, 148 sizeof (mb->un.varRDnvp.rsvd3)); 149 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, 150 sizeof (licensed)); 151 152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 153 154 if (rc != MBX_SUCCESS) { 155 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 156 "0324 Config Port initialization " 157 "error, mbxCmd x%x READ_NVPARM, " 158 "mbxStatus x%x\n", 159 mb->mbxCommand, mb->mbxStatus); 160 mempool_free(pmb, phba->mbox_mem_pool); 161 return -ERESTART; 162 } 163 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, 164 sizeof(phba->wwnn)); 165 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, 166 sizeof(phba->wwpn)); 167 } 168 169 phba->sli3_options = 0x0; 170 171 /* Setup and issue mailbox READ REV command */ 172 lpfc_read_rev(phba, pmb); 173 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 174 if (rc != MBX_SUCCESS) { 175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 176 "0439 Adapter failed to init, mbxCmd x%x " 177 "READ_REV, mbxStatus x%x\n", 178 mb->mbxCommand, mb->mbxStatus); 179 mempool_free( pmb, phba->mbox_mem_pool); 180 return -ERESTART; 181 } 182 183 184 /* 185 * The value of rr must be 1 since the driver set the cv field to 1. 186 * This setting requires the FW to set all revision fields. 187 */ 188 if (mb->un.varRdRev.rr == 0) { 189 vp->rev.rBit = 0; 190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 191 "0440 Adapter failed to init, READ_REV has " 192 "missing revision information.\n"); 193 mempool_free(pmb, phba->mbox_mem_pool); 194 return -ERESTART; 195 } 196 197 if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { 198 mempool_free(pmb, phba->mbox_mem_pool); 199 return -EINVAL; 200 } 201 202 /* Save information as VPD data */ 203 vp->rev.rBit = 1; 204 memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); 205 vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; 206 memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); 207 vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; 208 memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); 209 vp->rev.biuRev = mb->un.varRdRev.biuRev; 210 vp->rev.smRev = mb->un.varRdRev.smRev; 211 vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; 212 vp->rev.endecRev = mb->un.varRdRev.endecRev; 213 vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; 214 vp->rev.fcphLow = mb->un.varRdRev.fcphLow; 215 vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; 216 vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; 217 vp->rev.postKernRev = mb->un.varRdRev.postKernRev; 218 vp->rev.opFwRev = mb->un.varRdRev.opFwRev; 219 220 /* If the sli feature level is less then 9, we must 221 * tear down all RPIs and VPIs on link down if NPIV 222 * is enabled. 223 */ 224 if (vp->rev.feaLevelHigh < 9) 225 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; 226 227 if (lpfc_is_LC_HBA(phba->pcidev->device)) 228 memcpy(phba->RandomData, (char *)&mb->un.varWords[24], 229 sizeof (phba->RandomData)); 230 231 /* Get adapter VPD information */ 232 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 233 if (!lpfc_vpd_data) 234 goto out_free_mbox; 235 do { 236 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); 237 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 238 239 if (rc != MBX_SUCCESS) { 240 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 241 "0441 VPD not present on adapter, " 242 "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", 243 mb->mbxCommand, mb->mbxStatus); 244 mb->un.varDmp.word_cnt = 0; 245 } 246 /* dump mem may return a zero when finished or we got a 247 * mailbox error, either way we are done. 248 */ 249 if (mb->un.varDmp.word_cnt == 0) 250 break; 251 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 252 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 253 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 254 lpfc_vpd_data + offset, 255 mb->un.varDmp.word_cnt); 256 offset += mb->un.varDmp.word_cnt; 257 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 258 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 259 260 kfree(lpfc_vpd_data); 261 out_free_mbox: 262 mempool_free(pmb, phba->mbox_mem_pool); 263 return 0; 264 } 265 266 /** 267 * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd 268 * @phba: pointer to lpfc hba data structure. 269 * @pmboxq: pointer to the driver internal queue element for mailbox command. 270 * 271 * This is the completion handler for driver's configuring asynchronous event 272 * mailbox command to the device. If the mailbox command returns successfully, 273 * it will set internal async event support flag to 1; otherwise, it will 274 * set internal async event support flag to 0. 275 **/ 276 static void 277 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 278 { 279 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) 280 phba->temp_sensor_support = 1; 281 else 282 phba->temp_sensor_support = 0; 283 mempool_free(pmboxq, phba->mbox_mem_pool); 284 return; 285 } 286 287 /** 288 * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler 289 * @phba: pointer to lpfc hba data structure. 290 * @pmboxq: pointer to the driver internal queue element for mailbox command. 291 * 292 * This is the completion handler for dump mailbox command for getting 293 * wake up parameters. When this command complete, the response contain 294 * Option rom version of the HBA. This function translate the version number 295 * into a human readable string and store it in OptionROMVersion. 296 **/ 297 static void 298 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 299 { 300 struct prog_id *prg; 301 uint32_t prog_id_word; 302 char dist = ' '; 303 /* character array used for decoding dist type. */ 304 char dist_char[] = "nabx"; 305 306 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { 307 mempool_free(pmboxq, phba->mbox_mem_pool); 308 return; 309 } 310 311 prg = (struct prog_id *) &prog_id_word; 312 313 /* word 7 contain option rom version */ 314 prog_id_word = pmboxq->u.mb.un.varWords[7]; 315 316 /* Decode the Option rom version word to a readable string */ 317 if (prg->dist < 4) 318 dist = dist_char[prg->dist]; 319 320 if ((prg->dist == 3) && (prg->num == 0)) 321 snprintf(phba->OptionROMVersion, 32, "%d.%d%d", 322 prg->ver, prg->rev, prg->lev); 323 else 324 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", 325 prg->ver, prg->rev, prg->lev, 326 dist, prg->num); 327 mempool_free(pmboxq, phba->mbox_mem_pool); 328 return; 329 } 330 331 /** 332 * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, 333 * cfg_soft_wwnn, cfg_soft_wwpn 334 * @vport: pointer to lpfc vport data structure. 335 * 336 * 337 * Return codes 338 * None. 339 **/ 340 void 341 lpfc_update_vport_wwn(struct lpfc_vport *vport) 342 { 343 uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; 344 u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; 345 346 /* If the soft name exists then update it using the service params */ 347 if (vport->phba->cfg_soft_wwnn) 348 u64_to_wwn(vport->phba->cfg_soft_wwnn, 349 vport->fc_sparam.nodeName.u.wwn); 350 if (vport->phba->cfg_soft_wwpn) 351 u64_to_wwn(vport->phba->cfg_soft_wwpn, 352 vport->fc_sparam.portName.u.wwn); 353 354 /* 355 * If the name is empty or there exists a soft name 356 * then copy the service params name, otherwise use the fc name 357 */ 358 if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) 359 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, 360 sizeof(struct lpfc_name)); 361 else 362 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, 363 sizeof(struct lpfc_name)); 364 365 /* 366 * If the port name has changed, then set the Param changes flag 367 * to unreg the login 368 */ 369 if (vport->fc_portname.u.wwn[0] != 0 && 370 memcmp(&vport->fc_portname, &vport->fc_sparam.portName, 371 sizeof(struct lpfc_name))) 372 vport->vport_flag |= FAWWPN_PARAM_CHG; 373 374 if (vport->fc_portname.u.wwn[0] == 0 || 375 vport->phba->cfg_soft_wwpn || 376 (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || 377 vport->vport_flag & FAWWPN_SET) { 378 memcpy(&vport->fc_portname, &vport->fc_sparam.portName, 379 sizeof(struct lpfc_name)); 380 vport->vport_flag &= ~FAWWPN_SET; 381 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) 382 vport->vport_flag |= FAWWPN_SET; 383 } 384 else 385 memcpy(&vport->fc_sparam.portName, &vport->fc_portname, 386 sizeof(struct lpfc_name)); 387 } 388 389 /** 390 * lpfc_config_port_post - Perform lpfc initialization after config port 391 * @phba: pointer to lpfc hba data structure. 392 * 393 * This routine will do LPFC initialization after the CONFIG_PORT mailbox 394 * command call. It performs all internal resource and state setups on the 395 * port: post IOCB buffers, enable appropriate host interrupt attentions, 396 * ELS ring timers, etc. 397 * 398 * Return codes 399 * 0 - success. 400 * Any other value - error. 401 **/ 402 int 403 lpfc_config_port_post(struct lpfc_hba *phba) 404 { 405 struct lpfc_vport *vport = phba->pport; 406 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 407 LPFC_MBOXQ_t *pmb; 408 MAILBOX_t *mb; 409 struct lpfc_dmabuf *mp; 410 struct lpfc_sli *psli = &phba->sli; 411 uint32_t status, timeout; 412 int i, j; 413 int rc; 414 415 spin_lock_irq(&phba->hbalock); 416 /* 417 * If the Config port completed correctly the HBA is not 418 * over heated any more. 419 */ 420 if (phba->over_temp_state == HBA_OVER_TEMP) 421 phba->over_temp_state = HBA_NORMAL_TEMP; 422 spin_unlock_irq(&phba->hbalock); 423 424 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 425 if (!pmb) { 426 phba->link_state = LPFC_HBA_ERROR; 427 return -ENOMEM; 428 } 429 mb = &pmb->u.mb; 430 431 /* Get login parameters for NID. */ 432 rc = lpfc_read_sparam(phba, pmb, 0); 433 if (rc) { 434 mempool_free(pmb, phba->mbox_mem_pool); 435 return -ENOMEM; 436 } 437 438 pmb->vport = vport; 439 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 440 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 441 "0448 Adapter failed init, mbxCmd x%x " 442 "READ_SPARM mbxStatus x%x\n", 443 mb->mbxCommand, mb->mbxStatus); 444 phba->link_state = LPFC_HBA_ERROR; 445 mp = (struct lpfc_dmabuf *) pmb->context1; 446 mempool_free(pmb, phba->mbox_mem_pool); 447 lpfc_mbuf_free(phba, mp->virt, mp->phys); 448 kfree(mp); 449 return -EIO; 450 } 451 452 mp = (struct lpfc_dmabuf *) pmb->context1; 453 454 memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); 455 lpfc_mbuf_free(phba, mp->virt, mp->phys); 456 kfree(mp); 457 pmb->context1 = NULL; 458 lpfc_update_vport_wwn(vport); 459 460 /* Update the fc_host data structures with new wwn. */ 461 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 462 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 463 fc_host_max_npiv_vports(shost) = phba->max_vpi; 464 465 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 466 /* This should be consolidated into parse_vpd ? - mr */ 467 if (phba->SerialNumber[0] == 0) { 468 uint8_t *outptr; 469 470 outptr = &vport->fc_nodename.u.s.IEEE[0]; 471 for (i = 0; i < 12; i++) { 472 status = *outptr++; 473 j = ((status & 0xf0) >> 4); 474 if (j <= 9) 475 phba->SerialNumber[i] = 476 (char)((uint8_t) 0x30 + (uint8_t) j); 477 else 478 phba->SerialNumber[i] = 479 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 480 i++; 481 j = (status & 0xf); 482 if (j <= 9) 483 phba->SerialNumber[i] = 484 (char)((uint8_t) 0x30 + (uint8_t) j); 485 else 486 phba->SerialNumber[i] = 487 (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); 488 } 489 } 490 491 lpfc_read_config(phba, pmb); 492 pmb->vport = vport; 493 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { 494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 495 "0453 Adapter failed to init, mbxCmd x%x " 496 "READ_CONFIG, mbxStatus x%x\n", 497 mb->mbxCommand, mb->mbxStatus); 498 phba->link_state = LPFC_HBA_ERROR; 499 mempool_free( pmb, phba->mbox_mem_pool); 500 return -EIO; 501 } 502 503 /* Check if the port is disabled */ 504 lpfc_sli_read_link_ste(phba); 505 506 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 507 i = (mb->un.varRdConfig.max_xri + 1); 508 if (phba->cfg_hba_queue_depth > i) { 509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 510 "3359 HBA queue depth changed from %d to %d\n", 511 phba->cfg_hba_queue_depth, i); 512 phba->cfg_hba_queue_depth = i; 513 } 514 515 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ 516 i = (mb->un.varRdConfig.max_xri >> 3); 517 if (phba->pport->cfg_lun_queue_depth > i) { 518 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 519 "3360 LUN queue depth changed from %d to %d\n", 520 phba->pport->cfg_lun_queue_depth, i); 521 phba->pport->cfg_lun_queue_depth = i; 522 } 523 524 phba->lmt = mb->un.varRdConfig.lmt; 525 526 /* Get the default values for Model Name and Description */ 527 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 528 529 phba->link_state = LPFC_LINK_DOWN; 530 531 /* Only process IOCBs on ELS ring till hba_state is READY */ 532 if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) 533 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; 534 if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) 535 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; 536 537 /* Post receive buffers for desired rings */ 538 if (phba->sli_rev != 3) 539 lpfc_post_rcv_buf(phba); 540 541 /* 542 * Configure HBA MSI-X attention conditions to messages if MSI-X mode 543 */ 544 if (phba->intr_type == MSIX) { 545 rc = lpfc_config_msi(phba, pmb); 546 if (rc) { 547 mempool_free(pmb, phba->mbox_mem_pool); 548 return -EIO; 549 } 550 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 551 if (rc != MBX_SUCCESS) { 552 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 553 "0352 Config MSI mailbox command " 554 "failed, mbxCmd x%x, mbxStatus x%x\n", 555 pmb->u.mb.mbxCommand, 556 pmb->u.mb.mbxStatus); 557 mempool_free(pmb, phba->mbox_mem_pool); 558 return -EIO; 559 } 560 } 561 562 spin_lock_irq(&phba->hbalock); 563 /* Initialize ERATT handling flag */ 564 phba->hba_flag &= ~HBA_ERATT_HANDLED; 565 566 /* Enable appropriate host interrupts */ 567 if (lpfc_readl(phba->HCregaddr, &status)) { 568 spin_unlock_irq(&phba->hbalock); 569 return -EIO; 570 } 571 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 572 if (psli->num_rings > 0) 573 status |= HC_R0INT_ENA; 574 if (psli->num_rings > 1) 575 status |= HC_R1INT_ENA; 576 if (psli->num_rings > 2) 577 status |= HC_R2INT_ENA; 578 if (psli->num_rings > 3) 579 status |= HC_R3INT_ENA; 580 581 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 582 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 583 status &= ~(HC_R0INT_ENA); 584 585 writel(status, phba->HCregaddr); 586 readl(phba->HCregaddr); /* flush */ 587 spin_unlock_irq(&phba->hbalock); 588 589 /* Set up ring-0 (ELS) timer */ 590 timeout = phba->fc_ratov * 2; 591 mod_timer(&vport->els_tmofunc, 592 jiffies + msecs_to_jiffies(1000 * timeout)); 593 /* Set up heart beat (HB) timer */ 594 mod_timer(&phba->hb_tmofunc, 595 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 596 phba->hb_outstanding = 0; 597 phba->last_completion_time = jiffies; 598 /* Set up error attention (ERATT) polling timer */ 599 mod_timer(&phba->eratt_poll, 600 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); 601 602 if (phba->hba_flag & LINK_DISABLED) { 603 lpfc_printf_log(phba, 604 KERN_ERR, LOG_INIT, 605 "2598 Adapter Link is disabled.\n"); 606 lpfc_down_link(phba, pmb); 607 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 608 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 609 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 610 lpfc_printf_log(phba, 611 KERN_ERR, LOG_INIT, 612 "2599 Adapter failed to issue DOWN_LINK" 613 " mbox command rc 0x%x\n", rc); 614 615 mempool_free(pmb, phba->mbox_mem_pool); 616 return -EIO; 617 } 618 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { 619 mempool_free(pmb, phba->mbox_mem_pool); 620 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); 621 if (rc) 622 return rc; 623 } 624 /* MBOX buffer will be freed in mbox compl */ 625 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 626 if (!pmb) { 627 phba->link_state = LPFC_HBA_ERROR; 628 return -ENOMEM; 629 } 630 631 lpfc_config_async(phba, pmb, LPFC_ELS_RING); 632 pmb->mbox_cmpl = lpfc_config_async_cmpl; 633 pmb->vport = phba->pport; 634 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 635 636 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 637 lpfc_printf_log(phba, 638 KERN_ERR, 639 LOG_INIT, 640 "0456 Adapter failed to issue " 641 "ASYNCEVT_ENABLE mbox status x%x\n", 642 rc); 643 mempool_free(pmb, phba->mbox_mem_pool); 644 } 645 646 /* Get Option rom version */ 647 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 648 if (!pmb) { 649 phba->link_state = LPFC_HBA_ERROR; 650 return -ENOMEM; 651 } 652 653 lpfc_dump_wakeup_param(phba, pmb); 654 pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; 655 pmb->vport = phba->pport; 656 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 657 658 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " 660 "to get Option ROM version status x%x\n", rc); 661 mempool_free(pmb, phba->mbox_mem_pool); 662 } 663 664 return 0; 665 } 666 667 /** 668 * lpfc_hba_init_link - Initialize the FC link 669 * @phba: pointer to lpfc hba data structure. 670 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 671 * 672 * This routine will issue the INIT_LINK mailbox command call. 673 * It is available to other drivers through the lpfc_hba data 674 * structure for use as a delayed link up mechanism with the 675 * module parameter lpfc_suppress_link_up. 676 * 677 * Return code 678 * 0 - success 679 * Any other value - error 680 **/ 681 static int 682 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) 683 { 684 return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); 685 } 686 687 /** 688 * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology 689 * @phba: pointer to lpfc hba data structure. 690 * @fc_topology: desired fc topology. 691 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 692 * 693 * This routine will issue the INIT_LINK mailbox command call. 694 * It is available to other drivers through the lpfc_hba data 695 * structure for use as a delayed link up mechanism with the 696 * module parameter lpfc_suppress_link_up. 697 * 698 * Return code 699 * 0 - success 700 * Any other value - error 701 **/ 702 int 703 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, 704 uint32_t flag) 705 { 706 struct lpfc_vport *vport = phba->pport; 707 LPFC_MBOXQ_t *pmb; 708 MAILBOX_t *mb; 709 int rc; 710 711 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 712 if (!pmb) { 713 phba->link_state = LPFC_HBA_ERROR; 714 return -ENOMEM; 715 } 716 mb = &pmb->u.mb; 717 pmb->vport = vport; 718 719 if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || 720 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && 721 !(phba->lmt & LMT_1Gb)) || 722 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && 723 !(phba->lmt & LMT_2Gb)) || 724 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && 725 !(phba->lmt & LMT_4Gb)) || 726 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && 727 !(phba->lmt & LMT_8Gb)) || 728 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && 729 !(phba->lmt & LMT_10Gb)) || 730 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && 731 !(phba->lmt & LMT_16Gb)) || 732 ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && 733 !(phba->lmt & LMT_32Gb))) { 734 /* Reset link speed to auto */ 735 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 736 "1302 Invalid speed for this board:%d " 737 "Reset link speed to auto.\n", 738 phba->cfg_link_speed); 739 phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; 740 } 741 lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); 742 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 743 if (phba->sli_rev < LPFC_SLI_REV4) 744 lpfc_set_loopback_flag(phba); 745 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 746 if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { 747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 748 "0498 Adapter failed to init, mbxCmd x%x " 749 "INIT_LINK, mbxStatus x%x\n", 750 mb->mbxCommand, mb->mbxStatus); 751 if (phba->sli_rev <= LPFC_SLI_REV3) { 752 /* Clear all interrupt enable conditions */ 753 writel(0, phba->HCregaddr); 754 readl(phba->HCregaddr); /* flush */ 755 /* Clear all pending interrupts */ 756 writel(0xffffffff, phba->HAregaddr); 757 readl(phba->HAregaddr); /* flush */ 758 } 759 phba->link_state = LPFC_HBA_ERROR; 760 if (rc != MBX_BUSY || flag == MBX_POLL) 761 mempool_free(pmb, phba->mbox_mem_pool); 762 return -EIO; 763 } 764 phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; 765 if (flag == MBX_POLL) 766 mempool_free(pmb, phba->mbox_mem_pool); 767 768 return 0; 769 } 770 771 /** 772 * lpfc_hba_down_link - this routine downs the FC link 773 * @phba: pointer to lpfc hba data structure. 774 * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT 775 * 776 * This routine will issue the DOWN_LINK mailbox command call. 777 * It is available to other drivers through the lpfc_hba data 778 * structure for use to stop the link. 779 * 780 * Return code 781 * 0 - success 782 * Any other value - error 783 **/ 784 static int 785 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) 786 { 787 LPFC_MBOXQ_t *pmb; 788 int rc; 789 790 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 791 if (!pmb) { 792 phba->link_state = LPFC_HBA_ERROR; 793 return -ENOMEM; 794 } 795 796 lpfc_printf_log(phba, 797 KERN_ERR, LOG_INIT, 798 "0491 Adapter Link is disabled.\n"); 799 lpfc_down_link(phba, pmb); 800 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 801 rc = lpfc_sli_issue_mbox(phba, pmb, flag); 802 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { 803 lpfc_printf_log(phba, 804 KERN_ERR, LOG_INIT, 805 "2522 Adapter failed to issue DOWN_LINK" 806 " mbox command rc 0x%x\n", rc); 807 808 mempool_free(pmb, phba->mbox_mem_pool); 809 return -EIO; 810 } 811 if (flag == MBX_POLL) 812 mempool_free(pmb, phba->mbox_mem_pool); 813 814 return 0; 815 } 816 817 /** 818 * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset 819 * @phba: pointer to lpfc HBA data structure. 820 * 821 * This routine will do LPFC uninitialization before the HBA is reset when 822 * bringing down the SLI Layer. 823 * 824 * Return codes 825 * 0 - success. 826 * Any other value - error. 827 **/ 828 int 829 lpfc_hba_down_prep(struct lpfc_hba *phba) 830 { 831 struct lpfc_vport **vports; 832 int i; 833 834 if (phba->sli_rev <= LPFC_SLI_REV3) { 835 /* Disable interrupts */ 836 writel(0, phba->HCregaddr); 837 readl(phba->HCregaddr); /* flush */ 838 } 839 840 if (phba->pport->load_flag & FC_UNLOADING) 841 lpfc_cleanup_discovery_resources(phba->pport); 842 else { 843 vports = lpfc_create_vport_work_array(phba); 844 if (vports != NULL) 845 for (i = 0; i <= phba->max_vports && 846 vports[i] != NULL; i++) 847 lpfc_cleanup_discovery_resources(vports[i]); 848 lpfc_destroy_vport_work_array(phba, vports); 849 } 850 return 0; 851 } 852 853 /** 854 * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free 855 * rspiocb which got deferred 856 * 857 * @phba: pointer to lpfc HBA data structure. 858 * 859 * This routine will cleanup completed slow path events after HBA is reset 860 * when bringing down the SLI Layer. 861 * 862 * 863 * Return codes 864 * void. 865 **/ 866 static void 867 lpfc_sli4_free_sp_events(struct lpfc_hba *phba) 868 { 869 struct lpfc_iocbq *rspiocbq; 870 struct hbq_dmabuf *dmabuf; 871 struct lpfc_cq_event *cq_event; 872 873 spin_lock_irq(&phba->hbalock); 874 phba->hba_flag &= ~HBA_SP_QUEUE_EVT; 875 spin_unlock_irq(&phba->hbalock); 876 877 while (!list_empty(&phba->sli4_hba.sp_queue_event)) { 878 /* Get the response iocb from the head of work queue */ 879 spin_lock_irq(&phba->hbalock); 880 list_remove_head(&phba->sli4_hba.sp_queue_event, 881 cq_event, struct lpfc_cq_event, list); 882 spin_unlock_irq(&phba->hbalock); 883 884 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { 885 case CQE_CODE_COMPL_WQE: 886 rspiocbq = container_of(cq_event, struct lpfc_iocbq, 887 cq_event); 888 lpfc_sli_release_iocbq(phba, rspiocbq); 889 break; 890 case CQE_CODE_RECEIVE: 891 case CQE_CODE_RECEIVE_V1: 892 dmabuf = container_of(cq_event, struct hbq_dmabuf, 893 cq_event); 894 lpfc_in_buf_free(phba, &dmabuf->dbuf); 895 } 896 } 897 } 898 899 /** 900 * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset 901 * @phba: pointer to lpfc HBA data structure. 902 * 903 * This routine will cleanup posted ELS buffers after the HBA is reset 904 * when bringing down the SLI Layer. 905 * 906 * 907 * Return codes 908 * void. 909 **/ 910 static void 911 lpfc_hba_free_post_buf(struct lpfc_hba *phba) 912 { 913 struct lpfc_sli *psli = &phba->sli; 914 struct lpfc_sli_ring *pring; 915 struct lpfc_dmabuf *mp, *next_mp; 916 LIST_HEAD(buflist); 917 int count; 918 919 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) 920 lpfc_sli_hbqbuf_free_all(phba); 921 else { 922 /* Cleanup preposted buffers on the ELS ring */ 923 pring = &psli->sli3_ring[LPFC_ELS_RING]; 924 spin_lock_irq(&phba->hbalock); 925 list_splice_init(&pring->postbufq, &buflist); 926 spin_unlock_irq(&phba->hbalock); 927 928 count = 0; 929 list_for_each_entry_safe(mp, next_mp, &buflist, list) { 930 list_del(&mp->list); 931 count++; 932 lpfc_mbuf_free(phba, mp->virt, mp->phys); 933 kfree(mp); 934 } 935 936 spin_lock_irq(&phba->hbalock); 937 pring->postbufq_cnt -= count; 938 spin_unlock_irq(&phba->hbalock); 939 } 940 } 941 942 /** 943 * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset 944 * @phba: pointer to lpfc HBA data structure. 945 * 946 * This routine will cleanup the txcmplq after the HBA is reset when bringing 947 * down the SLI Layer. 948 * 949 * Return codes 950 * void 951 **/ 952 static void 953 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) 954 { 955 struct lpfc_sli *psli = &phba->sli; 956 struct lpfc_queue *qp = NULL; 957 struct lpfc_sli_ring *pring; 958 LIST_HEAD(completions); 959 int i; 960 961 if (phba->sli_rev != LPFC_SLI_REV4) { 962 for (i = 0; i < psli->num_rings; i++) { 963 pring = &psli->sli3_ring[i]; 964 spin_lock_irq(&phba->hbalock); 965 /* At this point in time the HBA is either reset or DOA 966 * Nothing should be on txcmplq as it will 967 * NEVER complete. 968 */ 969 list_splice_init(&pring->txcmplq, &completions); 970 pring->txcmplq_cnt = 0; 971 spin_unlock_irq(&phba->hbalock); 972 973 lpfc_sli_abort_iocb_ring(phba, pring); 974 } 975 /* Cancel all the IOCBs from the completions list */ 976 lpfc_sli_cancel_iocbs(phba, &completions, 977 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 978 return; 979 } 980 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { 981 pring = qp->pring; 982 if (!pring) 983 continue; 984 spin_lock_irq(&pring->ring_lock); 985 list_splice_init(&pring->txcmplq, &completions); 986 pring->txcmplq_cnt = 0; 987 spin_unlock_irq(&pring->ring_lock); 988 lpfc_sli_abort_iocb_ring(phba, pring); 989 } 990 /* Cancel all the IOCBs from the completions list */ 991 lpfc_sli_cancel_iocbs(phba, &completions, 992 IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); 993 } 994 995 /** 996 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset 997 int i; 998 * @phba: pointer to lpfc HBA data structure. 999 * 1000 * This routine will do uninitialization after the HBA is reset when bring 1001 * down the SLI Layer. 1002 * 1003 * Return codes 1004 * 0 - success. 1005 * Any other value - error. 1006 **/ 1007 static int 1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba) 1009 { 1010 lpfc_hba_free_post_buf(phba); 1011 lpfc_hba_clean_txcmplq(phba); 1012 return 0; 1013 } 1014 1015 /** 1016 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset 1017 * @phba: pointer to lpfc HBA data structure. 1018 * 1019 * This routine will do uninitialization after the HBA is reset when bring 1020 * down the SLI Layer. 1021 * 1022 * Return codes 1023 * 0 - success. 1024 * Any other value - error. 1025 **/ 1026 static int 1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba) 1028 { 1029 struct lpfc_scsi_buf *psb, *psb_next; 1030 struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; 1031 LIST_HEAD(aborts); 1032 LIST_HEAD(nvme_aborts); 1033 LIST_HEAD(nvmet_aborts); 1034 unsigned long iflag = 0; 1035 struct lpfc_sglq *sglq_entry = NULL; 1036 1037 1038 lpfc_sli_hbqbuf_free_all(phba); 1039 lpfc_hba_clean_txcmplq(phba); 1040 1041 /* At this point in time the HBA is either reset or DOA. Either 1042 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be 1043 * on the lpfc_els_sgl_list so that it can either be freed if the 1044 * driver is unloading or reposted if the driver is restarting 1045 * the port. 1046 */ 1047 spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ 1048 /* scsl_buf_list */ 1049 /* sgl_list_lock required because worker thread uses this 1050 * list. 1051 */ 1052 spin_lock(&phba->sli4_hba.sgl_list_lock); 1053 list_for_each_entry(sglq_entry, 1054 &phba->sli4_hba.lpfc_abts_els_sgl_list, list) 1055 sglq_entry->state = SGL_FREED; 1056 1057 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, 1058 &phba->sli4_hba.lpfc_els_sgl_list); 1059 1060 1061 spin_unlock(&phba->sli4_hba.sgl_list_lock); 1062 /* abts_scsi_buf_list_lock required because worker thread uses this 1063 * list. 1064 */ 1065 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 1066 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1067 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, 1068 &aborts); 1069 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); 1070 } 1071 1072 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1073 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1074 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, 1075 &nvme_aborts); 1076 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, 1077 &nvmet_aborts); 1078 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); 1079 } 1080 1081 spin_unlock_irq(&phba->hbalock); 1082 1083 list_for_each_entry_safe(psb, psb_next, &aborts, list) { 1084 psb->pCmd = NULL; 1085 psb->status = IOSTAT_SUCCESS; 1086 } 1087 spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); 1088 list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); 1089 spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); 1090 1091 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1092 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { 1093 psb->pCmd = NULL; 1094 psb->status = IOSTAT_SUCCESS; 1095 } 1096 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); 1097 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); 1098 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); 1099 1100 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { 1101 ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); 1102 lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf); 1103 } 1104 } 1105 1106 lpfc_sli4_free_sp_events(phba); 1107 return 0; 1108 } 1109 1110 /** 1111 * lpfc_hba_down_post - Wrapper func for hba down post routine 1112 * @phba: pointer to lpfc HBA data structure. 1113 * 1114 * This routine wraps the actual SLI3 or SLI4 routine for performing 1115 * uninitialization after the HBA is reset when bring down the SLI Layer. 1116 * 1117 * Return codes 1118 * 0 - success. 1119 * Any other value - error. 1120 **/ 1121 int 1122 lpfc_hba_down_post(struct lpfc_hba *phba) 1123 { 1124 return (*phba->lpfc_hba_down_post)(phba); 1125 } 1126 1127 /** 1128 * lpfc_hb_timeout - The HBA-timer timeout handler 1129 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1130 * 1131 * This is the HBA-timer timeout handler registered to the lpfc driver. When 1132 * this timer fires, a HBA timeout event shall be posted to the lpfc driver 1133 * work-port-events bitmap and the worker thread is notified. This timeout 1134 * event will be used by the worker thread to invoke the actual timeout 1135 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will 1136 * be performed in the timeout handler and the HBA timeout event bit shall 1137 * be cleared by the worker thread after it has taken the event bitmap out. 1138 **/ 1139 static void 1140 lpfc_hb_timeout(unsigned long ptr) 1141 { 1142 struct lpfc_hba *phba; 1143 uint32_t tmo_posted; 1144 unsigned long iflag; 1145 1146 phba = (struct lpfc_hba *)ptr; 1147 1148 /* Check for heart beat timeout conditions */ 1149 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1150 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 1151 if (!tmo_posted) 1152 phba->pport->work_port_events |= WORKER_HB_TMO; 1153 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1154 1155 /* Tell the worker thread there is work to do */ 1156 if (!tmo_posted) 1157 lpfc_worker_wake_up(phba); 1158 return; 1159 } 1160 1161 /** 1162 * lpfc_rrq_timeout - The RRQ-timer timeout handler 1163 * @ptr: unsigned long holds the pointer to lpfc hba data structure. 1164 * 1165 * This is the RRQ-timer timeout handler registered to the lpfc driver. When 1166 * this timer fires, a RRQ timeout event shall be posted to the lpfc driver 1167 * work-port-events bitmap and the worker thread is notified. This timeout 1168 * event will be used by the worker thread to invoke the actual timeout 1169 * handler routine, lpfc_rrq_handler. Any periodical operations will 1170 * be performed in the timeout handler and the RRQ timeout event bit shall 1171 * be cleared by the worker thread after it has taken the event bitmap out. 1172 **/ 1173 static void 1174 lpfc_rrq_timeout(unsigned long ptr) 1175 { 1176 struct lpfc_hba *phba; 1177 unsigned long iflag; 1178 1179 phba = (struct lpfc_hba *)ptr; 1180 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 1181 if (!(phba->pport->load_flag & FC_UNLOADING)) 1182 phba->hba_flag |= HBA_RRQ_ACTIVE; 1183 else 1184 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 1185 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 1186 1187 if (!(phba->pport->load_flag & FC_UNLOADING)) 1188 lpfc_worker_wake_up(phba); 1189 } 1190 1191 /** 1192 * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function 1193 * @phba: pointer to lpfc hba data structure. 1194 * @pmboxq: pointer to the driver internal queue element for mailbox command. 1195 * 1196 * This is the callback function to the lpfc heart-beat mailbox command. 1197 * If configured, the lpfc driver issues the heart-beat mailbox command to 1198 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the 1199 * heart-beat mailbox command is issued, the driver shall set up heart-beat 1200 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks 1201 * heart-beat outstanding state. Once the mailbox command comes back and 1202 * no error conditions detected, the heart-beat mailbox command timer is 1203 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding 1204 * state is cleared for the next heart-beat. If the timer expired with the 1205 * heart-beat outstanding state set, the driver will put the HBA offline. 1206 **/ 1207 static void 1208 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 1209 { 1210 unsigned long drvr_flag; 1211 1212 spin_lock_irqsave(&phba->hbalock, drvr_flag); 1213 phba->hb_outstanding = 0; 1214 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 1215 1216 /* Check and reset heart-beat timer is necessary */ 1217 mempool_free(pmboxq, phba->mbox_mem_pool); 1218 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 1219 !(phba->link_state == LPFC_HBA_ERROR) && 1220 !(phba->pport->load_flag & FC_UNLOADING)) 1221 mod_timer(&phba->hb_tmofunc, 1222 jiffies + 1223 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1224 return; 1225 } 1226 1227 /** 1228 * lpfc_hb_timeout_handler - The HBA-timer timeout handler 1229 * @phba: pointer to lpfc hba data structure. 1230 * 1231 * This is the actual HBA-timer timeout handler to be invoked by the worker 1232 * thread whenever the HBA timer fired and HBA-timeout event posted. This 1233 * handler performs any periodic operations needed for the device. If such 1234 * periodic event has already been attended to either in the interrupt handler 1235 * or by processing slow-ring or fast-ring events within the HBA-timer 1236 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets 1237 * the timer for the next timeout period. If lpfc heart-beat mailbox command 1238 * is configured and there is no heart-beat mailbox command outstanding, a 1239 * heart-beat mailbox is issued and timer set properly. Otherwise, if there 1240 * has been a heart-beat mailbox command outstanding, the HBA shall be put 1241 * to offline. 1242 **/ 1243 void 1244 lpfc_hb_timeout_handler(struct lpfc_hba *phba) 1245 { 1246 struct lpfc_vport **vports; 1247 LPFC_MBOXQ_t *pmboxq; 1248 struct lpfc_dmabuf *buf_ptr; 1249 int retval, i; 1250 struct lpfc_sli *psli = &phba->sli; 1251 LIST_HEAD(completions); 1252 1253 vports = lpfc_create_vport_work_array(phba); 1254 if (vports != NULL) 1255 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1256 lpfc_rcv_seq_check_edtov(vports[i]); 1257 lpfc_fdmi_num_disc_check(vports[i]); 1258 } 1259 lpfc_destroy_vport_work_array(phba, vports); 1260 1261 if ((phba->link_state == LPFC_HBA_ERROR) || 1262 (phba->pport->load_flag & FC_UNLOADING) || 1263 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1264 return; 1265 1266 spin_lock_irq(&phba->pport->work_port_lock); 1267 1268 if (time_after(phba->last_completion_time + 1269 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1270 jiffies)) { 1271 spin_unlock_irq(&phba->pport->work_port_lock); 1272 if (!phba->hb_outstanding) 1273 mod_timer(&phba->hb_tmofunc, 1274 jiffies + 1275 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1276 else 1277 mod_timer(&phba->hb_tmofunc, 1278 jiffies + 1279 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1280 return; 1281 } 1282 spin_unlock_irq(&phba->pport->work_port_lock); 1283 1284 if (phba->elsbuf_cnt && 1285 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1286 spin_lock_irq(&phba->hbalock); 1287 list_splice_init(&phba->elsbuf, &completions); 1288 phba->elsbuf_cnt = 0; 1289 phba->elsbuf_prev_cnt = 0; 1290 spin_unlock_irq(&phba->hbalock); 1291 1292 while (!list_empty(&completions)) { 1293 list_remove_head(&completions, buf_ptr, 1294 struct lpfc_dmabuf, list); 1295 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1296 kfree(buf_ptr); 1297 } 1298 } 1299 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1300 1301 /* If there is no heart beat outstanding, issue a heartbeat command */ 1302 if (phba->cfg_enable_hba_heartbeat) { 1303 if (!phba->hb_outstanding) { 1304 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1305 (list_empty(&psli->mboxq))) { 1306 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1307 GFP_KERNEL); 1308 if (!pmboxq) { 1309 mod_timer(&phba->hb_tmofunc, 1310 jiffies + 1311 msecs_to_jiffies(1000 * 1312 LPFC_HB_MBOX_INTERVAL)); 1313 return; 1314 } 1315 1316 lpfc_heart_beat(phba, pmboxq); 1317 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1318 pmboxq->vport = phba->pport; 1319 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1320 MBX_NOWAIT); 1321 1322 if (retval != MBX_BUSY && 1323 retval != MBX_SUCCESS) { 1324 mempool_free(pmboxq, 1325 phba->mbox_mem_pool); 1326 mod_timer(&phba->hb_tmofunc, 1327 jiffies + 1328 msecs_to_jiffies(1000 * 1329 LPFC_HB_MBOX_INTERVAL)); 1330 return; 1331 } 1332 phba->skipped_hb = 0; 1333 phba->hb_outstanding = 1; 1334 } else if (time_before_eq(phba->last_completion_time, 1335 phba->skipped_hb)) { 1336 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1337 "2857 Last completion time not " 1338 " updated in %d ms\n", 1339 jiffies_to_msecs(jiffies 1340 - phba->last_completion_time)); 1341 } else 1342 phba->skipped_hb = jiffies; 1343 1344 mod_timer(&phba->hb_tmofunc, 1345 jiffies + 1346 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1347 return; 1348 } else { 1349 /* 1350 * If heart beat timeout called with hb_outstanding set 1351 * we need to give the hb mailbox cmd a chance to 1352 * complete or TMO. 1353 */ 1354 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1355 "0459 Adapter heartbeat still out" 1356 "standing:last compl time was %d ms.\n", 1357 jiffies_to_msecs(jiffies 1358 - phba->last_completion_time)); 1359 mod_timer(&phba->hb_tmofunc, 1360 jiffies + 1361 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1362 } 1363 } else { 1364 mod_timer(&phba->hb_tmofunc, 1365 jiffies + 1366 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1367 } 1368 } 1369 1370 /** 1371 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1372 * @phba: pointer to lpfc hba data structure. 1373 * 1374 * This routine is called to bring the HBA offline when HBA hardware error 1375 * other than Port Error 6 has been detected. 1376 **/ 1377 static void 1378 lpfc_offline_eratt(struct lpfc_hba *phba) 1379 { 1380 struct lpfc_sli *psli = &phba->sli; 1381 1382 spin_lock_irq(&phba->hbalock); 1383 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1384 spin_unlock_irq(&phba->hbalock); 1385 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1386 1387 lpfc_offline(phba); 1388 lpfc_reset_barrier(phba); 1389 spin_lock_irq(&phba->hbalock); 1390 lpfc_sli_brdreset(phba); 1391 spin_unlock_irq(&phba->hbalock); 1392 lpfc_hba_down_post(phba); 1393 lpfc_sli_brdready(phba, HS_MBRDY); 1394 lpfc_unblock_mgmt_io(phba); 1395 phba->link_state = LPFC_HBA_ERROR; 1396 return; 1397 } 1398 1399 /** 1400 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1401 * @phba: pointer to lpfc hba data structure. 1402 * 1403 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1404 * other than Port Error 6 has been detected. 1405 **/ 1406 void 1407 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1408 { 1409 spin_lock_irq(&phba->hbalock); 1410 phba->link_state = LPFC_HBA_ERROR; 1411 spin_unlock_irq(&phba->hbalock); 1412 1413 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1414 lpfc_offline(phba); 1415 lpfc_hba_down_post(phba); 1416 lpfc_unblock_mgmt_io(phba); 1417 } 1418 1419 /** 1420 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1421 * @phba: pointer to lpfc hba data structure. 1422 * 1423 * This routine is invoked to handle the deferred HBA hardware error 1424 * conditions. This type of error is indicated by HBA by setting ER1 1425 * and another ER bit in the host status register. The driver will 1426 * wait until the ER1 bit clears before handling the error condition. 1427 **/ 1428 static void 1429 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1430 { 1431 uint32_t old_host_status = phba->work_hs; 1432 struct lpfc_sli *psli = &phba->sli; 1433 1434 /* If the pci channel is offline, ignore possible errors, 1435 * since we cannot communicate with the pci card anyway. 1436 */ 1437 if (pci_channel_offline(phba->pcidev)) { 1438 spin_lock_irq(&phba->hbalock); 1439 phba->hba_flag &= ~DEFER_ERATT; 1440 spin_unlock_irq(&phba->hbalock); 1441 return; 1442 } 1443 1444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1445 "0479 Deferred Adapter Hardware Error " 1446 "Data: x%x x%x x%x\n", 1447 phba->work_hs, 1448 phba->work_status[0], phba->work_status[1]); 1449 1450 spin_lock_irq(&phba->hbalock); 1451 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1452 spin_unlock_irq(&phba->hbalock); 1453 1454 1455 /* 1456 * Firmware stops when it triggred erratt. That could cause the I/Os 1457 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1458 * SCSI layer retry it after re-establishing link. 1459 */ 1460 lpfc_sli_abort_fcp_rings(phba); 1461 1462 /* 1463 * There was a firmware error. Take the hba offline and then 1464 * attempt to restart it. 1465 */ 1466 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1467 lpfc_offline(phba); 1468 1469 /* Wait for the ER1 bit to clear.*/ 1470 while (phba->work_hs & HS_FFER1) { 1471 msleep(100); 1472 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1473 phba->work_hs = UNPLUG_ERR ; 1474 break; 1475 } 1476 /* If driver is unloading let the worker thread continue */ 1477 if (phba->pport->load_flag & FC_UNLOADING) { 1478 phba->work_hs = 0; 1479 break; 1480 } 1481 } 1482 1483 /* 1484 * This is to ptrotect against a race condition in which 1485 * first write to the host attention register clear the 1486 * host status register. 1487 */ 1488 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1489 phba->work_hs = old_host_status & ~HS_FFER1; 1490 1491 spin_lock_irq(&phba->hbalock); 1492 phba->hba_flag &= ~DEFER_ERATT; 1493 spin_unlock_irq(&phba->hbalock); 1494 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1495 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1496 } 1497 1498 static void 1499 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1500 { 1501 struct lpfc_board_event_header board_event; 1502 struct Scsi_Host *shost; 1503 1504 board_event.event_type = FC_REG_BOARD_EVENT; 1505 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1506 shost = lpfc_shost_from_vport(phba->pport); 1507 fc_host_post_vendor_event(shost, fc_get_event_number(), 1508 sizeof(board_event), 1509 (char *) &board_event, 1510 LPFC_NL_VENDOR_ID); 1511 } 1512 1513 /** 1514 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1515 * @phba: pointer to lpfc hba data structure. 1516 * 1517 * This routine is invoked to handle the following HBA hardware error 1518 * conditions: 1519 * 1 - HBA error attention interrupt 1520 * 2 - DMA ring index out of range 1521 * 3 - Mailbox command came back as unknown 1522 **/ 1523 static void 1524 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1525 { 1526 struct lpfc_vport *vport = phba->pport; 1527 struct lpfc_sli *psli = &phba->sli; 1528 uint32_t event_data; 1529 unsigned long temperature; 1530 struct temp_event temp_event_data; 1531 struct Scsi_Host *shost; 1532 1533 /* If the pci channel is offline, ignore possible errors, 1534 * since we cannot communicate with the pci card anyway. 1535 */ 1536 if (pci_channel_offline(phba->pcidev)) { 1537 spin_lock_irq(&phba->hbalock); 1538 phba->hba_flag &= ~DEFER_ERATT; 1539 spin_unlock_irq(&phba->hbalock); 1540 return; 1541 } 1542 1543 /* If resets are disabled then leave the HBA alone and return */ 1544 if (!phba->cfg_enable_hba_reset) 1545 return; 1546 1547 /* Send an internal error event to mgmt application */ 1548 lpfc_board_errevt_to_mgmt(phba); 1549 1550 if (phba->hba_flag & DEFER_ERATT) 1551 lpfc_handle_deferred_eratt(phba); 1552 1553 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1554 if (phba->work_hs & HS_FFER6) 1555 /* Re-establishing Link */ 1556 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1557 "1301 Re-establishing Link " 1558 "Data: x%x x%x x%x\n", 1559 phba->work_hs, phba->work_status[0], 1560 phba->work_status[1]); 1561 if (phba->work_hs & HS_FFER8) 1562 /* Device Zeroization */ 1563 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1564 "2861 Host Authentication device " 1565 "zeroization Data:x%x x%x x%x\n", 1566 phba->work_hs, phba->work_status[0], 1567 phba->work_status[1]); 1568 1569 spin_lock_irq(&phba->hbalock); 1570 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1571 spin_unlock_irq(&phba->hbalock); 1572 1573 /* 1574 * Firmware stops when it triggled erratt with HS_FFER6. 1575 * That could cause the I/Os dropped by the firmware. 1576 * Error iocb (I/O) on txcmplq and let the SCSI layer 1577 * retry it after re-establishing link. 1578 */ 1579 lpfc_sli_abort_fcp_rings(phba); 1580 1581 /* 1582 * There was a firmware error. Take the hba offline and then 1583 * attempt to restart it. 1584 */ 1585 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1586 lpfc_offline(phba); 1587 lpfc_sli_brdrestart(phba); 1588 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1589 lpfc_unblock_mgmt_io(phba); 1590 return; 1591 } 1592 lpfc_unblock_mgmt_io(phba); 1593 } else if (phba->work_hs & HS_CRIT_TEMP) { 1594 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1595 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1596 temp_event_data.event_code = LPFC_CRIT_TEMP; 1597 temp_event_data.data = (uint32_t)temperature; 1598 1599 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1600 "0406 Adapter maximum temperature exceeded " 1601 "(%ld), taking this port offline " 1602 "Data: x%x x%x x%x\n", 1603 temperature, phba->work_hs, 1604 phba->work_status[0], phba->work_status[1]); 1605 1606 shost = lpfc_shost_from_vport(phba->pport); 1607 fc_host_post_vendor_event(shost, fc_get_event_number(), 1608 sizeof(temp_event_data), 1609 (char *) &temp_event_data, 1610 SCSI_NL_VID_TYPE_PCI 1611 | PCI_VENDOR_ID_EMULEX); 1612 1613 spin_lock_irq(&phba->hbalock); 1614 phba->over_temp_state = HBA_OVER_TEMP; 1615 spin_unlock_irq(&phba->hbalock); 1616 lpfc_offline_eratt(phba); 1617 1618 } else { 1619 /* The if clause above forces this code path when the status 1620 * failure is a value other than FFER6. Do not call the offline 1621 * twice. This is the adapter hardware error path. 1622 */ 1623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1624 "0457 Adapter Hardware Error " 1625 "Data: x%x x%x x%x\n", 1626 phba->work_hs, 1627 phba->work_status[0], phba->work_status[1]); 1628 1629 event_data = FC_REG_DUMP_EVENT; 1630 shost = lpfc_shost_from_vport(vport); 1631 fc_host_post_vendor_event(shost, fc_get_event_number(), 1632 sizeof(event_data), (char *) &event_data, 1633 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1634 1635 lpfc_offline_eratt(phba); 1636 } 1637 return; 1638 } 1639 1640 /** 1641 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1642 * @phba: pointer to lpfc hba data structure. 1643 * @mbx_action: flag for mailbox shutdown action. 1644 * 1645 * This routine is invoked to perform an SLI4 port PCI function reset in 1646 * response to port status register polling attention. It waits for port 1647 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1648 * During this process, interrupt vectors are freed and later requested 1649 * for handling possible port resource change. 1650 **/ 1651 static int 1652 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1653 bool en_rn_msg) 1654 { 1655 int rc; 1656 uint32_t intr_mode; 1657 1658 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1659 LPFC_SLI_INTF_IF_TYPE_2) { 1660 /* 1661 * On error status condition, driver need to wait for port 1662 * ready before performing reset. 1663 */ 1664 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1665 if (rc) 1666 return rc; 1667 } 1668 1669 /* need reset: attempt for port recovery */ 1670 if (en_rn_msg) 1671 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1672 "2887 Reset Needed: Attempting Port " 1673 "Recovery...\n"); 1674 lpfc_offline_prep(phba, mbx_action); 1675 lpfc_offline(phba); 1676 /* release interrupt for possible resource change */ 1677 lpfc_sli4_disable_intr(phba); 1678 lpfc_sli_brdrestart(phba); 1679 /* request and enable interrupt */ 1680 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1681 if (intr_mode == LPFC_INTR_ERROR) { 1682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1683 "3175 Failed to enable interrupt\n"); 1684 return -EIO; 1685 } 1686 phba->intr_mode = intr_mode; 1687 rc = lpfc_online(phba); 1688 if (rc == 0) 1689 lpfc_unblock_mgmt_io(phba); 1690 1691 return rc; 1692 } 1693 1694 /** 1695 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1696 * @phba: pointer to lpfc hba data structure. 1697 * 1698 * This routine is invoked to handle the SLI4 HBA hardware error attention 1699 * conditions. 1700 **/ 1701 static void 1702 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1703 { 1704 struct lpfc_vport *vport = phba->pport; 1705 uint32_t event_data; 1706 struct Scsi_Host *shost; 1707 uint32_t if_type; 1708 struct lpfc_register portstat_reg = {0}; 1709 uint32_t reg_err1, reg_err2; 1710 uint32_t uerrlo_reg, uemasklo_reg; 1711 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1712 bool en_rn_msg = true; 1713 struct temp_event temp_event_data; 1714 struct lpfc_register portsmphr_reg; 1715 int rc, i; 1716 1717 /* If the pci channel is offline, ignore possible errors, since 1718 * we cannot communicate with the pci card anyway. 1719 */ 1720 if (pci_channel_offline(phba->pcidev)) 1721 return; 1722 1723 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1724 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1725 switch (if_type) { 1726 case LPFC_SLI_INTF_IF_TYPE_0: 1727 pci_rd_rc1 = lpfc_readl( 1728 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1729 &uerrlo_reg); 1730 pci_rd_rc2 = lpfc_readl( 1731 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1732 &uemasklo_reg); 1733 /* consider PCI bus read error as pci_channel_offline */ 1734 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1735 return; 1736 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1737 lpfc_sli4_offline_eratt(phba); 1738 return; 1739 } 1740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1741 "7623 Checking UE recoverable"); 1742 1743 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1744 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1745 &portsmphr_reg.word0)) 1746 continue; 1747 1748 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1749 &portsmphr_reg); 1750 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1751 LPFC_PORT_SEM_UE_RECOVERABLE) 1752 break; 1753 /*Sleep for 1Sec, before checking SEMAPHORE */ 1754 msleep(1000); 1755 } 1756 1757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1758 "4827 smphr_port_status x%x : Waited %dSec", 1759 smphr_port_status, i); 1760 1761 /* Recoverable UE, reset the HBA device */ 1762 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1763 LPFC_PORT_SEM_UE_RECOVERABLE) { 1764 for (i = 0; i < 20; i++) { 1765 msleep(1000); 1766 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1767 &portsmphr_reg.word0) && 1768 (LPFC_POST_STAGE_PORT_READY == 1769 bf_get(lpfc_port_smphr_port_status, 1770 &portsmphr_reg))) { 1771 rc = lpfc_sli4_port_sta_fn_reset(phba, 1772 LPFC_MBX_NO_WAIT, en_rn_msg); 1773 if (rc == 0) 1774 return; 1775 lpfc_printf_log(phba, 1776 KERN_ERR, LOG_INIT, 1777 "4215 Failed to recover UE"); 1778 break; 1779 } 1780 } 1781 } 1782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1783 "7624 Firmware not ready: Failing UE recovery," 1784 " waited %dSec", i); 1785 lpfc_sli4_offline_eratt(phba); 1786 break; 1787 1788 case LPFC_SLI_INTF_IF_TYPE_2: 1789 pci_rd_rc1 = lpfc_readl( 1790 phba->sli4_hba.u.if_type2.STATUSregaddr, 1791 &portstat_reg.word0); 1792 /* consider PCI bus read error as pci_channel_offline */ 1793 if (pci_rd_rc1 == -EIO) { 1794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1795 "3151 PCI bus read access failure: x%x\n", 1796 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1797 return; 1798 } 1799 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1800 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1801 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1803 "2889 Port Overtemperature event, " 1804 "taking port offline Data: x%x x%x\n", 1805 reg_err1, reg_err2); 1806 1807 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1808 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1809 temp_event_data.event_code = LPFC_CRIT_TEMP; 1810 temp_event_data.data = 0xFFFFFFFF; 1811 1812 shost = lpfc_shost_from_vport(phba->pport); 1813 fc_host_post_vendor_event(shost, fc_get_event_number(), 1814 sizeof(temp_event_data), 1815 (char *)&temp_event_data, 1816 SCSI_NL_VID_TYPE_PCI 1817 | PCI_VENDOR_ID_EMULEX); 1818 1819 spin_lock_irq(&phba->hbalock); 1820 phba->over_temp_state = HBA_OVER_TEMP; 1821 spin_unlock_irq(&phba->hbalock); 1822 lpfc_sli4_offline_eratt(phba); 1823 return; 1824 } 1825 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1826 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1828 "3143 Port Down: Firmware Update " 1829 "Detected\n"); 1830 en_rn_msg = false; 1831 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1832 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1834 "3144 Port Down: Debug Dump\n"); 1835 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1836 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1838 "3145 Port Down: Provisioning\n"); 1839 1840 /* If resets are disabled then leave the HBA alone and return */ 1841 if (!phba->cfg_enable_hba_reset) 1842 return; 1843 1844 /* Check port status register for function reset */ 1845 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1846 en_rn_msg); 1847 if (rc == 0) { 1848 /* don't report event on forced debug dump */ 1849 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1850 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1851 return; 1852 else 1853 break; 1854 } 1855 /* fall through for not able to recover */ 1856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1857 "3152 Unrecoverable error, bring the port " 1858 "offline\n"); 1859 lpfc_sli4_offline_eratt(phba); 1860 break; 1861 case LPFC_SLI_INTF_IF_TYPE_1: 1862 default: 1863 break; 1864 } 1865 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1866 "3123 Report dump event to upper layer\n"); 1867 /* Send an internal error event to mgmt application */ 1868 lpfc_board_errevt_to_mgmt(phba); 1869 1870 event_data = FC_REG_DUMP_EVENT; 1871 shost = lpfc_shost_from_vport(vport); 1872 fc_host_post_vendor_event(shost, fc_get_event_number(), 1873 sizeof(event_data), (char *) &event_data, 1874 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1875 } 1876 1877 /** 1878 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1879 * @phba: pointer to lpfc HBA data structure. 1880 * 1881 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1882 * routine from the API jump table function pointer from the lpfc_hba struct. 1883 * 1884 * Return codes 1885 * 0 - success. 1886 * Any other value - error. 1887 **/ 1888 void 1889 lpfc_handle_eratt(struct lpfc_hba *phba) 1890 { 1891 (*phba->lpfc_handle_eratt)(phba); 1892 } 1893 1894 /** 1895 * lpfc_handle_latt - The HBA link event handler 1896 * @phba: pointer to lpfc hba data structure. 1897 * 1898 * This routine is invoked from the worker thread to handle a HBA host 1899 * attention link event. SLI3 only. 1900 **/ 1901 void 1902 lpfc_handle_latt(struct lpfc_hba *phba) 1903 { 1904 struct lpfc_vport *vport = phba->pport; 1905 struct lpfc_sli *psli = &phba->sli; 1906 LPFC_MBOXQ_t *pmb; 1907 volatile uint32_t control; 1908 struct lpfc_dmabuf *mp; 1909 int rc = 0; 1910 1911 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1912 if (!pmb) { 1913 rc = 1; 1914 goto lpfc_handle_latt_err_exit; 1915 } 1916 1917 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 1918 if (!mp) { 1919 rc = 2; 1920 goto lpfc_handle_latt_free_pmb; 1921 } 1922 1923 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 1924 if (!mp->virt) { 1925 rc = 3; 1926 goto lpfc_handle_latt_free_mp; 1927 } 1928 1929 /* Cleanup any outstanding ELS commands */ 1930 lpfc_els_flush_all_cmd(phba); 1931 1932 psli->slistat.link_event++; 1933 lpfc_read_topology(phba, pmb, mp); 1934 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 1935 pmb->vport = vport; 1936 /* Block ELS IOCBs until we have processed this mbox command */ 1937 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 1938 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 1939 if (rc == MBX_NOT_FINISHED) { 1940 rc = 4; 1941 goto lpfc_handle_latt_free_mbuf; 1942 } 1943 1944 /* Clear Link Attention in HA REG */ 1945 spin_lock_irq(&phba->hbalock); 1946 writel(HA_LATT, phba->HAregaddr); 1947 readl(phba->HAregaddr); /* flush */ 1948 spin_unlock_irq(&phba->hbalock); 1949 1950 return; 1951 1952 lpfc_handle_latt_free_mbuf: 1953 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 1954 lpfc_mbuf_free(phba, mp->virt, mp->phys); 1955 lpfc_handle_latt_free_mp: 1956 kfree(mp); 1957 lpfc_handle_latt_free_pmb: 1958 mempool_free(pmb, phba->mbox_mem_pool); 1959 lpfc_handle_latt_err_exit: 1960 /* Enable Link attention interrupts */ 1961 spin_lock_irq(&phba->hbalock); 1962 psli->sli_flag |= LPFC_PROCESS_LA; 1963 control = readl(phba->HCregaddr); 1964 control |= HC_LAINT_ENA; 1965 writel(control, phba->HCregaddr); 1966 readl(phba->HCregaddr); /* flush */ 1967 1968 /* Clear Link Attention in HA REG */ 1969 writel(HA_LATT, phba->HAregaddr); 1970 readl(phba->HAregaddr); /* flush */ 1971 spin_unlock_irq(&phba->hbalock); 1972 lpfc_linkdown(phba); 1973 phba->link_state = LPFC_HBA_ERROR; 1974 1975 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 1976 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 1977 1978 return; 1979 } 1980 1981 /** 1982 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 1983 * @phba: pointer to lpfc hba data structure. 1984 * @vpd: pointer to the vital product data. 1985 * @len: length of the vital product data in bytes. 1986 * 1987 * This routine parses the Vital Product Data (VPD). The VPD is treated as 1988 * an array of characters. In this routine, the ModelName, ProgramType, and 1989 * ModelDesc, etc. fields of the phba data structure will be populated. 1990 * 1991 * Return codes 1992 * 0 - pointer to the VPD passed in is NULL 1993 * 1 - success 1994 **/ 1995 int 1996 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1997 { 1998 uint8_t lenlo, lenhi; 1999 int Length; 2000 int i, j; 2001 int finished = 0; 2002 int index = 0; 2003 2004 if (!vpd) 2005 return 0; 2006 2007 /* Vital Product */ 2008 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2009 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2010 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2011 (uint32_t) vpd[3]); 2012 while (!finished && (index < (len - 4))) { 2013 switch (vpd[index]) { 2014 case 0x82: 2015 case 0x91: 2016 index += 1; 2017 lenlo = vpd[index]; 2018 index += 1; 2019 lenhi = vpd[index]; 2020 index += 1; 2021 i = ((((unsigned short)lenhi) << 8) + lenlo); 2022 index += i; 2023 break; 2024 case 0x90: 2025 index += 1; 2026 lenlo = vpd[index]; 2027 index += 1; 2028 lenhi = vpd[index]; 2029 index += 1; 2030 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2031 if (Length > len - index) 2032 Length = len - index; 2033 while (Length > 0) { 2034 /* Look for Serial Number */ 2035 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2036 index += 2; 2037 i = vpd[index]; 2038 index += 1; 2039 j = 0; 2040 Length -= (3+i); 2041 while(i--) { 2042 phba->SerialNumber[j++] = vpd[index++]; 2043 if (j == 31) 2044 break; 2045 } 2046 phba->SerialNumber[j] = 0; 2047 continue; 2048 } 2049 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2050 phba->vpd_flag |= VPD_MODEL_DESC; 2051 index += 2; 2052 i = vpd[index]; 2053 index += 1; 2054 j = 0; 2055 Length -= (3+i); 2056 while(i--) { 2057 phba->ModelDesc[j++] = vpd[index++]; 2058 if (j == 255) 2059 break; 2060 } 2061 phba->ModelDesc[j] = 0; 2062 continue; 2063 } 2064 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2065 phba->vpd_flag |= VPD_MODEL_NAME; 2066 index += 2; 2067 i = vpd[index]; 2068 index += 1; 2069 j = 0; 2070 Length -= (3+i); 2071 while(i--) { 2072 phba->ModelName[j++] = vpd[index++]; 2073 if (j == 79) 2074 break; 2075 } 2076 phba->ModelName[j] = 0; 2077 continue; 2078 } 2079 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2080 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2081 index += 2; 2082 i = vpd[index]; 2083 index += 1; 2084 j = 0; 2085 Length -= (3+i); 2086 while(i--) { 2087 phba->ProgramType[j++] = vpd[index++]; 2088 if (j == 255) 2089 break; 2090 } 2091 phba->ProgramType[j] = 0; 2092 continue; 2093 } 2094 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2095 phba->vpd_flag |= VPD_PORT; 2096 index += 2; 2097 i = vpd[index]; 2098 index += 1; 2099 j = 0; 2100 Length -= (3+i); 2101 while(i--) { 2102 if ((phba->sli_rev == LPFC_SLI_REV4) && 2103 (phba->sli4_hba.pport_name_sta == 2104 LPFC_SLI4_PPNAME_GET)) { 2105 j++; 2106 index++; 2107 } else 2108 phba->Port[j++] = vpd[index++]; 2109 if (j == 19) 2110 break; 2111 } 2112 if ((phba->sli_rev != LPFC_SLI_REV4) || 2113 (phba->sli4_hba.pport_name_sta == 2114 LPFC_SLI4_PPNAME_NON)) 2115 phba->Port[j] = 0; 2116 continue; 2117 } 2118 else { 2119 index += 2; 2120 i = vpd[index]; 2121 index += 1; 2122 index += i; 2123 Length -= (3 + i); 2124 } 2125 } 2126 finished = 0; 2127 break; 2128 case 0x78: 2129 finished = 1; 2130 break; 2131 default: 2132 index ++; 2133 break; 2134 } 2135 } 2136 2137 return(1); 2138 } 2139 2140 /** 2141 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2142 * @phba: pointer to lpfc hba data structure. 2143 * @mdp: pointer to the data structure to hold the derived model name. 2144 * @descp: pointer to the data structure to hold the derived description. 2145 * 2146 * This routine retrieves HBA's description based on its registered PCI device 2147 * ID. The @descp passed into this function points to an array of 256 chars. It 2148 * shall be returned with the model name, maximum speed, and the host bus type. 2149 * The @mdp passed into this function points to an array of 80 chars. When the 2150 * function returns, the @mdp will be filled with the model name. 2151 **/ 2152 static void 2153 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2154 { 2155 lpfc_vpd_t *vp; 2156 uint16_t dev_id = phba->pcidev->device; 2157 int max_speed; 2158 int GE = 0; 2159 int oneConnect = 0; /* default is not a oneConnect */ 2160 struct { 2161 char *name; 2162 char *bus; 2163 char *function; 2164 } m = {"<Unknown>", "", ""}; 2165 2166 if (mdp && mdp[0] != '\0' 2167 && descp && descp[0] != '\0') 2168 return; 2169 2170 if (phba->lmt & LMT_32Gb) 2171 max_speed = 32; 2172 else if (phba->lmt & LMT_16Gb) 2173 max_speed = 16; 2174 else if (phba->lmt & LMT_10Gb) 2175 max_speed = 10; 2176 else if (phba->lmt & LMT_8Gb) 2177 max_speed = 8; 2178 else if (phba->lmt & LMT_4Gb) 2179 max_speed = 4; 2180 else if (phba->lmt & LMT_2Gb) 2181 max_speed = 2; 2182 else if (phba->lmt & LMT_1Gb) 2183 max_speed = 1; 2184 else 2185 max_speed = 0; 2186 2187 vp = &phba->vpd; 2188 2189 switch (dev_id) { 2190 case PCI_DEVICE_ID_FIREFLY: 2191 m = (typeof(m)){"LP6000", "PCI", 2192 "Obsolete, Unsupported Fibre Channel Adapter"}; 2193 break; 2194 case PCI_DEVICE_ID_SUPERFLY: 2195 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2196 m = (typeof(m)){"LP7000", "PCI", ""}; 2197 else 2198 m = (typeof(m)){"LP7000E", "PCI", ""}; 2199 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2200 break; 2201 case PCI_DEVICE_ID_DRAGONFLY: 2202 m = (typeof(m)){"LP8000", "PCI", 2203 "Obsolete, Unsupported Fibre Channel Adapter"}; 2204 break; 2205 case PCI_DEVICE_ID_CENTAUR: 2206 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2207 m = (typeof(m)){"LP9002", "PCI", ""}; 2208 else 2209 m = (typeof(m)){"LP9000", "PCI", ""}; 2210 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2211 break; 2212 case PCI_DEVICE_ID_RFLY: 2213 m = (typeof(m)){"LP952", "PCI", 2214 "Obsolete, Unsupported Fibre Channel Adapter"}; 2215 break; 2216 case PCI_DEVICE_ID_PEGASUS: 2217 m = (typeof(m)){"LP9802", "PCI-X", 2218 "Obsolete, Unsupported Fibre Channel Adapter"}; 2219 break; 2220 case PCI_DEVICE_ID_THOR: 2221 m = (typeof(m)){"LP10000", "PCI-X", 2222 "Obsolete, Unsupported Fibre Channel Adapter"}; 2223 break; 2224 case PCI_DEVICE_ID_VIPER: 2225 m = (typeof(m)){"LPX1000", "PCI-X", 2226 "Obsolete, Unsupported Fibre Channel Adapter"}; 2227 break; 2228 case PCI_DEVICE_ID_PFLY: 2229 m = (typeof(m)){"LP982", "PCI-X", 2230 "Obsolete, Unsupported Fibre Channel Adapter"}; 2231 break; 2232 case PCI_DEVICE_ID_TFLY: 2233 m = (typeof(m)){"LP1050", "PCI-X", 2234 "Obsolete, Unsupported Fibre Channel Adapter"}; 2235 break; 2236 case PCI_DEVICE_ID_HELIOS: 2237 m = (typeof(m)){"LP11000", "PCI-X2", 2238 "Obsolete, Unsupported Fibre Channel Adapter"}; 2239 break; 2240 case PCI_DEVICE_ID_HELIOS_SCSP: 2241 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2242 "Obsolete, Unsupported Fibre Channel Adapter"}; 2243 break; 2244 case PCI_DEVICE_ID_HELIOS_DCSP: 2245 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2246 "Obsolete, Unsupported Fibre Channel Adapter"}; 2247 break; 2248 case PCI_DEVICE_ID_NEPTUNE: 2249 m = (typeof(m)){"LPe1000", "PCIe", 2250 "Obsolete, Unsupported Fibre Channel Adapter"}; 2251 break; 2252 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2253 m = (typeof(m)){"LPe1000-SP", "PCIe", 2254 "Obsolete, Unsupported Fibre Channel Adapter"}; 2255 break; 2256 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2257 m = (typeof(m)){"LPe1002-SP", "PCIe", 2258 "Obsolete, Unsupported Fibre Channel Adapter"}; 2259 break; 2260 case PCI_DEVICE_ID_BMID: 2261 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2262 break; 2263 case PCI_DEVICE_ID_BSMB: 2264 m = (typeof(m)){"LP111", "PCI-X2", 2265 "Obsolete, Unsupported Fibre Channel Adapter"}; 2266 break; 2267 case PCI_DEVICE_ID_ZEPHYR: 2268 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2269 break; 2270 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2271 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2272 break; 2273 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2274 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2275 GE = 1; 2276 break; 2277 case PCI_DEVICE_ID_ZMID: 2278 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2279 break; 2280 case PCI_DEVICE_ID_ZSMB: 2281 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2282 break; 2283 case PCI_DEVICE_ID_LP101: 2284 m = (typeof(m)){"LP101", "PCI-X", 2285 "Obsolete, Unsupported Fibre Channel Adapter"}; 2286 break; 2287 case PCI_DEVICE_ID_LP10000S: 2288 m = (typeof(m)){"LP10000-S", "PCI", 2289 "Obsolete, Unsupported Fibre Channel Adapter"}; 2290 break; 2291 case PCI_DEVICE_ID_LP11000S: 2292 m = (typeof(m)){"LP11000-S", "PCI-X2", 2293 "Obsolete, Unsupported Fibre Channel Adapter"}; 2294 break; 2295 case PCI_DEVICE_ID_LPE11000S: 2296 m = (typeof(m)){"LPe11000-S", "PCIe", 2297 "Obsolete, Unsupported Fibre Channel Adapter"}; 2298 break; 2299 case PCI_DEVICE_ID_SAT: 2300 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2301 break; 2302 case PCI_DEVICE_ID_SAT_MID: 2303 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2304 break; 2305 case PCI_DEVICE_ID_SAT_SMB: 2306 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2307 break; 2308 case PCI_DEVICE_ID_SAT_DCSP: 2309 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2310 break; 2311 case PCI_DEVICE_ID_SAT_SCSP: 2312 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2313 break; 2314 case PCI_DEVICE_ID_SAT_S: 2315 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2316 break; 2317 case PCI_DEVICE_ID_HORNET: 2318 m = (typeof(m)){"LP21000", "PCIe", 2319 "Obsolete, Unsupported FCoE Adapter"}; 2320 GE = 1; 2321 break; 2322 case PCI_DEVICE_ID_PROTEUS_VF: 2323 m = (typeof(m)){"LPev12000", "PCIe IOV", 2324 "Obsolete, Unsupported Fibre Channel Adapter"}; 2325 break; 2326 case PCI_DEVICE_ID_PROTEUS_PF: 2327 m = (typeof(m)){"LPev12000", "PCIe IOV", 2328 "Obsolete, Unsupported Fibre Channel Adapter"}; 2329 break; 2330 case PCI_DEVICE_ID_PROTEUS_S: 2331 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2332 "Obsolete, Unsupported Fibre Channel Adapter"}; 2333 break; 2334 case PCI_DEVICE_ID_TIGERSHARK: 2335 oneConnect = 1; 2336 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2337 break; 2338 case PCI_DEVICE_ID_TOMCAT: 2339 oneConnect = 1; 2340 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2341 break; 2342 case PCI_DEVICE_ID_FALCON: 2343 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2344 "EmulexSecure Fibre"}; 2345 break; 2346 case PCI_DEVICE_ID_BALIUS: 2347 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2348 "Obsolete, Unsupported Fibre Channel Adapter"}; 2349 break; 2350 case PCI_DEVICE_ID_LANCER_FC: 2351 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2352 break; 2353 case PCI_DEVICE_ID_LANCER_FC_VF: 2354 m = (typeof(m)){"LPe16000", "PCIe", 2355 "Obsolete, Unsupported Fibre Channel Adapter"}; 2356 break; 2357 case PCI_DEVICE_ID_LANCER_FCOE: 2358 oneConnect = 1; 2359 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2360 break; 2361 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2362 oneConnect = 1; 2363 m = (typeof(m)){"OCe15100", "PCIe", 2364 "Obsolete, Unsupported FCoE"}; 2365 break; 2366 case PCI_DEVICE_ID_LANCER_G6_FC: 2367 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2368 break; 2369 case PCI_DEVICE_ID_SKYHAWK: 2370 case PCI_DEVICE_ID_SKYHAWK_VF: 2371 oneConnect = 1; 2372 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2373 break; 2374 default: 2375 m = (typeof(m)){"Unknown", "", ""}; 2376 break; 2377 } 2378 2379 if (mdp && mdp[0] == '\0') 2380 snprintf(mdp, 79,"%s", m.name); 2381 /* 2382 * oneConnect hba requires special processing, they are all initiators 2383 * and we put the port number on the end 2384 */ 2385 if (descp && descp[0] == '\0') { 2386 if (oneConnect) 2387 snprintf(descp, 255, 2388 "Emulex OneConnect %s, %s Initiator %s", 2389 m.name, m.function, 2390 phba->Port); 2391 else if (max_speed == 0) 2392 snprintf(descp, 255, 2393 "Emulex %s %s %s", 2394 m.name, m.bus, m.function); 2395 else 2396 snprintf(descp, 255, 2397 "Emulex %s %d%s %s %s", 2398 m.name, max_speed, (GE) ? "GE" : "Gb", 2399 m.bus, m.function); 2400 } 2401 } 2402 2403 /** 2404 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2405 * @phba: pointer to lpfc hba data structure. 2406 * @pring: pointer to a IOCB ring. 2407 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2408 * 2409 * This routine posts a given number of IOCBs with the associated DMA buffer 2410 * descriptors specified by the cnt argument to the given IOCB ring. 2411 * 2412 * Return codes 2413 * The number of IOCBs NOT able to be posted to the IOCB ring. 2414 **/ 2415 int 2416 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2417 { 2418 IOCB_t *icmd; 2419 struct lpfc_iocbq *iocb; 2420 struct lpfc_dmabuf *mp1, *mp2; 2421 2422 cnt += pring->missbufcnt; 2423 2424 /* While there are buffers to post */ 2425 while (cnt > 0) { 2426 /* Allocate buffer for command iocb */ 2427 iocb = lpfc_sli_get_iocbq(phba); 2428 if (iocb == NULL) { 2429 pring->missbufcnt = cnt; 2430 return cnt; 2431 } 2432 icmd = &iocb->iocb; 2433 2434 /* 2 buffers can be posted per command */ 2435 /* Allocate buffer to post */ 2436 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2437 if (mp1) 2438 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2439 if (!mp1 || !mp1->virt) { 2440 kfree(mp1); 2441 lpfc_sli_release_iocbq(phba, iocb); 2442 pring->missbufcnt = cnt; 2443 return cnt; 2444 } 2445 2446 INIT_LIST_HEAD(&mp1->list); 2447 /* Allocate buffer to post */ 2448 if (cnt > 1) { 2449 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2450 if (mp2) 2451 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2452 &mp2->phys); 2453 if (!mp2 || !mp2->virt) { 2454 kfree(mp2); 2455 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2456 kfree(mp1); 2457 lpfc_sli_release_iocbq(phba, iocb); 2458 pring->missbufcnt = cnt; 2459 return cnt; 2460 } 2461 2462 INIT_LIST_HEAD(&mp2->list); 2463 } else { 2464 mp2 = NULL; 2465 } 2466 2467 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2468 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2469 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2470 icmd->ulpBdeCount = 1; 2471 cnt--; 2472 if (mp2) { 2473 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2474 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2475 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2476 cnt--; 2477 icmd->ulpBdeCount = 2; 2478 } 2479 2480 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2481 icmd->ulpLe = 1; 2482 2483 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2484 IOCB_ERROR) { 2485 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2486 kfree(mp1); 2487 cnt++; 2488 if (mp2) { 2489 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2490 kfree(mp2); 2491 cnt++; 2492 } 2493 lpfc_sli_release_iocbq(phba, iocb); 2494 pring->missbufcnt = cnt; 2495 return cnt; 2496 } 2497 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2498 if (mp2) 2499 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2500 } 2501 pring->missbufcnt = 0; 2502 return 0; 2503 } 2504 2505 /** 2506 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2507 * @phba: pointer to lpfc hba data structure. 2508 * 2509 * This routine posts initial receive IOCB buffers to the ELS ring. The 2510 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2511 * set to 64 IOCBs. SLI3 only. 2512 * 2513 * Return codes 2514 * 0 - success (currently always success) 2515 **/ 2516 static int 2517 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2518 { 2519 struct lpfc_sli *psli = &phba->sli; 2520 2521 /* Ring 0, ELS / CT buffers */ 2522 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2523 /* Ring 2 - FCP no buffers needed */ 2524 2525 return 0; 2526 } 2527 2528 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2529 2530 /** 2531 * lpfc_sha_init - Set up initial array of hash table entries 2532 * @HashResultPointer: pointer to an array as hash table. 2533 * 2534 * This routine sets up the initial values to the array of hash table entries 2535 * for the LC HBAs. 2536 **/ 2537 static void 2538 lpfc_sha_init(uint32_t * HashResultPointer) 2539 { 2540 HashResultPointer[0] = 0x67452301; 2541 HashResultPointer[1] = 0xEFCDAB89; 2542 HashResultPointer[2] = 0x98BADCFE; 2543 HashResultPointer[3] = 0x10325476; 2544 HashResultPointer[4] = 0xC3D2E1F0; 2545 } 2546 2547 /** 2548 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2549 * @HashResultPointer: pointer to an initial/result hash table. 2550 * @HashWorkingPointer: pointer to an working hash table. 2551 * 2552 * This routine iterates an initial hash table pointed by @HashResultPointer 2553 * with the values from the working hash table pointeed by @HashWorkingPointer. 2554 * The results are putting back to the initial hash table, returned through 2555 * the @HashResultPointer as the result hash table. 2556 **/ 2557 static void 2558 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2559 { 2560 int t; 2561 uint32_t TEMP; 2562 uint32_t A, B, C, D, E; 2563 t = 16; 2564 do { 2565 HashWorkingPointer[t] = 2566 S(1, 2567 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2568 8] ^ 2569 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2570 } while (++t <= 79); 2571 t = 0; 2572 A = HashResultPointer[0]; 2573 B = HashResultPointer[1]; 2574 C = HashResultPointer[2]; 2575 D = HashResultPointer[3]; 2576 E = HashResultPointer[4]; 2577 2578 do { 2579 if (t < 20) { 2580 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2581 } else if (t < 40) { 2582 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2583 } else if (t < 60) { 2584 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2585 } else { 2586 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2587 } 2588 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2589 E = D; 2590 D = C; 2591 C = S(30, B); 2592 B = A; 2593 A = TEMP; 2594 } while (++t <= 79); 2595 2596 HashResultPointer[0] += A; 2597 HashResultPointer[1] += B; 2598 HashResultPointer[2] += C; 2599 HashResultPointer[3] += D; 2600 HashResultPointer[4] += E; 2601 2602 } 2603 2604 /** 2605 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2606 * @RandomChallenge: pointer to the entry of host challenge random number array. 2607 * @HashWorking: pointer to the entry of the working hash array. 2608 * 2609 * This routine calculates the working hash array referred by @HashWorking 2610 * from the challenge random numbers associated with the host, referred by 2611 * @RandomChallenge. The result is put into the entry of the working hash 2612 * array and returned by reference through @HashWorking. 2613 **/ 2614 static void 2615 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2616 { 2617 *HashWorking = (*RandomChallenge ^ *HashWorking); 2618 } 2619 2620 /** 2621 * lpfc_hba_init - Perform special handling for LC HBA initialization 2622 * @phba: pointer to lpfc hba data structure. 2623 * @hbainit: pointer to an array of unsigned 32-bit integers. 2624 * 2625 * This routine performs the special handling for LC HBA initialization. 2626 **/ 2627 void 2628 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2629 { 2630 int t; 2631 uint32_t *HashWorking; 2632 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2633 2634 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2635 if (!HashWorking) 2636 return; 2637 2638 HashWorking[0] = HashWorking[78] = *pwwnn++; 2639 HashWorking[1] = HashWorking[79] = *pwwnn; 2640 2641 for (t = 0; t < 7; t++) 2642 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2643 2644 lpfc_sha_init(hbainit); 2645 lpfc_sha_iterate(hbainit, HashWorking); 2646 kfree(HashWorking); 2647 } 2648 2649 /** 2650 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2651 * @vport: pointer to a virtual N_Port data structure. 2652 * 2653 * This routine performs the necessary cleanups before deleting the @vport. 2654 * It invokes the discovery state machine to perform necessary state 2655 * transitions and to release the ndlps associated with the @vport. Note, 2656 * the physical port is treated as @vport 0. 2657 **/ 2658 void 2659 lpfc_cleanup(struct lpfc_vport *vport) 2660 { 2661 struct lpfc_hba *phba = vport->phba; 2662 struct lpfc_nodelist *ndlp, *next_ndlp; 2663 int i = 0; 2664 2665 if (phba->link_state > LPFC_LINK_DOWN) 2666 lpfc_port_link_failure(vport); 2667 2668 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2669 if (!NLP_CHK_NODE_ACT(ndlp)) { 2670 ndlp = lpfc_enable_node(vport, ndlp, 2671 NLP_STE_UNUSED_NODE); 2672 if (!ndlp) 2673 continue; 2674 spin_lock_irq(&phba->ndlp_lock); 2675 NLP_SET_FREE_REQ(ndlp); 2676 spin_unlock_irq(&phba->ndlp_lock); 2677 /* Trigger the release of the ndlp memory */ 2678 lpfc_nlp_put(ndlp); 2679 continue; 2680 } 2681 spin_lock_irq(&phba->ndlp_lock); 2682 if (NLP_CHK_FREE_REQ(ndlp)) { 2683 /* The ndlp should not be in memory free mode already */ 2684 spin_unlock_irq(&phba->ndlp_lock); 2685 continue; 2686 } else 2687 /* Indicate request for freeing ndlp memory */ 2688 NLP_SET_FREE_REQ(ndlp); 2689 spin_unlock_irq(&phba->ndlp_lock); 2690 2691 if (vport->port_type != LPFC_PHYSICAL_PORT && 2692 ndlp->nlp_DID == Fabric_DID) { 2693 /* Just free up ndlp with Fabric_DID for vports */ 2694 lpfc_nlp_put(ndlp); 2695 continue; 2696 } 2697 2698 /* take care of nodes in unused state before the state 2699 * machine taking action. 2700 */ 2701 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2702 lpfc_nlp_put(ndlp); 2703 continue; 2704 } 2705 2706 if (ndlp->nlp_type & NLP_FABRIC) 2707 lpfc_disc_state_machine(vport, ndlp, NULL, 2708 NLP_EVT_DEVICE_RECOVERY); 2709 2710 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) { 2711 /* Remove the NVME transport reference now and 2712 * continue to remove the node. 2713 */ 2714 lpfc_nlp_put(ndlp); 2715 } 2716 2717 lpfc_disc_state_machine(vport, ndlp, NULL, 2718 NLP_EVT_DEVICE_RM); 2719 } 2720 2721 /* At this point, ALL ndlp's should be gone 2722 * because of the previous NLP_EVT_DEVICE_RM. 2723 * Lets wait for this to happen, if needed. 2724 */ 2725 while (!list_empty(&vport->fc_nodes)) { 2726 if (i++ > 3000) { 2727 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2728 "0233 Nodelist not empty\n"); 2729 list_for_each_entry_safe(ndlp, next_ndlp, 2730 &vport->fc_nodes, nlp_listp) { 2731 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2732 LOG_NODE, 2733 "0282 did:x%x ndlp:x%p " 2734 "usgmap:x%x refcnt:%d\n", 2735 ndlp->nlp_DID, (void *)ndlp, 2736 ndlp->nlp_usg_map, 2737 kref_read(&ndlp->kref)); 2738 } 2739 break; 2740 } 2741 2742 /* Wait for any activity on ndlps to settle */ 2743 msleep(10); 2744 } 2745 lpfc_cleanup_vports_rrqs(vport, NULL); 2746 } 2747 2748 /** 2749 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2750 * @vport: pointer to a virtual N_Port data structure. 2751 * 2752 * This routine stops all the timers associated with a @vport. This function 2753 * is invoked before disabling or deleting a @vport. Note that the physical 2754 * port is treated as @vport 0. 2755 **/ 2756 void 2757 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2758 { 2759 del_timer_sync(&vport->els_tmofunc); 2760 del_timer_sync(&vport->delayed_disc_tmo); 2761 lpfc_can_disctmo(vport); 2762 return; 2763 } 2764 2765 /** 2766 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2767 * @phba: pointer to lpfc hba data structure. 2768 * 2769 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2770 * caller of this routine should already hold the host lock. 2771 **/ 2772 void 2773 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2774 { 2775 /* Clear pending FCF rediscovery wait flag */ 2776 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2777 2778 /* Now, try to stop the timer */ 2779 del_timer(&phba->fcf.redisc_wait); 2780 } 2781 2782 /** 2783 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2784 * @phba: pointer to lpfc hba data structure. 2785 * 2786 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2787 * checks whether the FCF rediscovery wait timer is pending with the host 2788 * lock held before proceeding with disabling the timer and clearing the 2789 * wait timer pendig flag. 2790 **/ 2791 void 2792 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2793 { 2794 spin_lock_irq(&phba->hbalock); 2795 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2796 /* FCF rediscovery timer already fired or stopped */ 2797 spin_unlock_irq(&phba->hbalock); 2798 return; 2799 } 2800 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2801 /* Clear failover in progress flags */ 2802 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2803 spin_unlock_irq(&phba->hbalock); 2804 } 2805 2806 /** 2807 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2808 * @phba: pointer to lpfc hba data structure. 2809 * 2810 * This routine stops all the timers associated with a HBA. This function is 2811 * invoked before either putting a HBA offline or unloading the driver. 2812 **/ 2813 void 2814 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2815 { 2816 lpfc_stop_vport_timers(phba->pport); 2817 del_timer_sync(&phba->sli.mbox_tmo); 2818 del_timer_sync(&phba->fabric_block_timer); 2819 del_timer_sync(&phba->eratt_poll); 2820 del_timer_sync(&phba->hb_tmofunc); 2821 if (phba->sli_rev == LPFC_SLI_REV4) { 2822 del_timer_sync(&phba->rrq_tmr); 2823 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2824 } 2825 phba->hb_outstanding = 0; 2826 2827 switch (phba->pci_dev_grp) { 2828 case LPFC_PCI_DEV_LP: 2829 /* Stop any LightPulse device specific driver timers */ 2830 del_timer_sync(&phba->fcp_poll_timer); 2831 break; 2832 case LPFC_PCI_DEV_OC: 2833 /* Stop any OneConnect device sepcific driver timers */ 2834 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2835 break; 2836 default: 2837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2838 "0297 Invalid device group (x%x)\n", 2839 phba->pci_dev_grp); 2840 break; 2841 } 2842 return; 2843 } 2844 2845 /** 2846 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2847 * @phba: pointer to lpfc hba data structure. 2848 * 2849 * This routine marks a HBA's management interface as blocked. Once the HBA's 2850 * management interface is marked as blocked, all the user space access to 2851 * the HBA, whether they are from sysfs interface or libdfc interface will 2852 * all be blocked. The HBA is set to block the management interface when the 2853 * driver prepares the HBA interface for online or offline. 2854 **/ 2855 static void 2856 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2857 { 2858 unsigned long iflag; 2859 uint8_t actcmd = MBX_HEARTBEAT; 2860 unsigned long timeout; 2861 2862 spin_lock_irqsave(&phba->hbalock, iflag); 2863 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2864 spin_unlock_irqrestore(&phba->hbalock, iflag); 2865 if (mbx_action == LPFC_MBX_NO_WAIT) 2866 return; 2867 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2868 spin_lock_irqsave(&phba->hbalock, iflag); 2869 if (phba->sli.mbox_active) { 2870 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2871 /* Determine how long we might wait for the active mailbox 2872 * command to be gracefully completed by firmware. 2873 */ 2874 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2875 phba->sli.mbox_active) * 1000) + jiffies; 2876 } 2877 spin_unlock_irqrestore(&phba->hbalock, iflag); 2878 2879 /* Wait for the outstnading mailbox command to complete */ 2880 while (phba->sli.mbox_active) { 2881 /* Check active mailbox complete status every 2ms */ 2882 msleep(2); 2883 if (time_after(jiffies, timeout)) { 2884 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2885 "2813 Mgmt IO is Blocked %x " 2886 "- mbox cmd %x still active\n", 2887 phba->sli.sli_flag, actcmd); 2888 break; 2889 } 2890 } 2891 } 2892 2893 /** 2894 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2895 * @phba: pointer to lpfc hba data structure. 2896 * 2897 * Allocate RPIs for all active remote nodes. This is needed whenever 2898 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2899 * is to fixup the temporary rpi assignments. 2900 **/ 2901 void 2902 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2903 { 2904 struct lpfc_nodelist *ndlp, *next_ndlp; 2905 struct lpfc_vport **vports; 2906 int i, rpi; 2907 unsigned long flags; 2908 2909 if (phba->sli_rev != LPFC_SLI_REV4) 2910 return; 2911 2912 vports = lpfc_create_vport_work_array(phba); 2913 if (vports == NULL) 2914 return; 2915 2916 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2917 if (vports[i]->load_flag & FC_UNLOADING) 2918 continue; 2919 2920 list_for_each_entry_safe(ndlp, next_ndlp, 2921 &vports[i]->fc_nodes, 2922 nlp_listp) { 2923 if (!NLP_CHK_NODE_ACT(ndlp)) 2924 continue; 2925 rpi = lpfc_sli4_alloc_rpi(phba); 2926 if (rpi == LPFC_RPI_ALLOC_ERROR) { 2927 spin_lock_irqsave(&phba->ndlp_lock, flags); 2928 NLP_CLR_NODE_ACT(ndlp); 2929 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 2930 continue; 2931 } 2932 ndlp->nlp_rpi = rpi; 2933 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 2934 "0009 rpi:%x DID:%x " 2935 "flg:%x map:%x %p\n", ndlp->nlp_rpi, 2936 ndlp->nlp_DID, ndlp->nlp_flag, 2937 ndlp->nlp_usg_map, ndlp); 2938 } 2939 } 2940 lpfc_destroy_vport_work_array(phba, vports); 2941 } 2942 2943 /** 2944 * lpfc_online - Initialize and bring a HBA online 2945 * @phba: pointer to lpfc hba data structure. 2946 * 2947 * This routine initializes the HBA and brings a HBA online. During this 2948 * process, the management interface is blocked to prevent user space access 2949 * to the HBA interfering with the driver initialization. 2950 * 2951 * Return codes 2952 * 0 - successful 2953 * 1 - failed 2954 **/ 2955 int 2956 lpfc_online(struct lpfc_hba *phba) 2957 { 2958 struct lpfc_vport *vport; 2959 struct lpfc_vport **vports; 2960 int i; 2961 bool vpis_cleared = false; 2962 2963 if (!phba) 2964 return 0; 2965 vport = phba->pport; 2966 2967 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 2968 return 0; 2969 2970 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2971 "0458 Bring Adapter online\n"); 2972 2973 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 2974 2975 if (phba->sli_rev == LPFC_SLI_REV4) { 2976 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 2977 lpfc_unblock_mgmt_io(phba); 2978 return 1; 2979 } 2980 spin_lock_irq(&phba->hbalock); 2981 if (!phba->sli4_hba.max_cfg_param.vpi_used) 2982 vpis_cleared = true; 2983 spin_unlock_irq(&phba->hbalock); 2984 } else { 2985 lpfc_sli_queue_init(phba); 2986 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 2987 lpfc_unblock_mgmt_io(phba); 2988 return 1; 2989 } 2990 } 2991 2992 vports = lpfc_create_vport_work_array(phba); 2993 if (vports != NULL) { 2994 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 2995 struct Scsi_Host *shost; 2996 shost = lpfc_shost_from_vport(vports[i]); 2997 spin_lock_irq(shost->host_lock); 2998 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 2999 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3000 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3001 if (phba->sli_rev == LPFC_SLI_REV4) { 3002 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3003 if ((vpis_cleared) && 3004 (vports[i]->port_type != 3005 LPFC_PHYSICAL_PORT)) 3006 vports[i]->vpi = 0; 3007 } 3008 spin_unlock_irq(shost->host_lock); 3009 } 3010 } 3011 lpfc_destroy_vport_work_array(phba, vports); 3012 3013 lpfc_unblock_mgmt_io(phba); 3014 return 0; 3015 } 3016 3017 /** 3018 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3019 * @phba: pointer to lpfc hba data structure. 3020 * 3021 * This routine marks a HBA's management interface as not blocked. Once the 3022 * HBA's management interface is marked as not blocked, all the user space 3023 * access to the HBA, whether they are from sysfs interface or libdfc 3024 * interface will be allowed. The HBA is set to block the management interface 3025 * when the driver prepares the HBA interface for online or offline and then 3026 * set to unblock the management interface afterwards. 3027 **/ 3028 void 3029 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3030 { 3031 unsigned long iflag; 3032 3033 spin_lock_irqsave(&phba->hbalock, iflag); 3034 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3035 spin_unlock_irqrestore(&phba->hbalock, iflag); 3036 } 3037 3038 /** 3039 * lpfc_offline_prep - Prepare a HBA to be brought offline 3040 * @phba: pointer to lpfc hba data structure. 3041 * 3042 * This routine is invoked to prepare a HBA to be brought offline. It performs 3043 * unregistration login to all the nodes on all vports and flushes the mailbox 3044 * queue to make it ready to be brought offline. 3045 **/ 3046 void 3047 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3048 { 3049 struct lpfc_vport *vport = phba->pport; 3050 struct lpfc_nodelist *ndlp, *next_ndlp; 3051 struct lpfc_vport **vports; 3052 struct Scsi_Host *shost; 3053 int i; 3054 3055 if (vport->fc_flag & FC_OFFLINE_MODE) 3056 return; 3057 3058 lpfc_block_mgmt_io(phba, mbx_action); 3059 3060 lpfc_linkdown(phba); 3061 3062 /* Issue an unreg_login to all nodes on all vports */ 3063 vports = lpfc_create_vport_work_array(phba); 3064 if (vports != NULL) { 3065 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3066 if (vports[i]->load_flag & FC_UNLOADING) 3067 continue; 3068 shost = lpfc_shost_from_vport(vports[i]); 3069 spin_lock_irq(shost->host_lock); 3070 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3071 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3072 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3073 spin_unlock_irq(shost->host_lock); 3074 3075 shost = lpfc_shost_from_vport(vports[i]); 3076 list_for_each_entry_safe(ndlp, next_ndlp, 3077 &vports[i]->fc_nodes, 3078 nlp_listp) { 3079 if (!NLP_CHK_NODE_ACT(ndlp)) 3080 continue; 3081 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3082 continue; 3083 if (ndlp->nlp_type & NLP_FABRIC) { 3084 lpfc_disc_state_machine(vports[i], ndlp, 3085 NULL, NLP_EVT_DEVICE_RECOVERY); 3086 lpfc_disc_state_machine(vports[i], ndlp, 3087 NULL, NLP_EVT_DEVICE_RM); 3088 } 3089 spin_lock_irq(shost->host_lock); 3090 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3091 spin_unlock_irq(shost->host_lock); 3092 /* 3093 * Whenever an SLI4 port goes offline, free the 3094 * RPI. Get a new RPI when the adapter port 3095 * comes back online. 3096 */ 3097 if (phba->sli_rev == LPFC_SLI_REV4) { 3098 lpfc_printf_vlog(ndlp->vport, 3099 KERN_INFO, LOG_NODE, 3100 "0011 lpfc_offline: " 3101 "ndlp:x%p did %x " 3102 "usgmap:x%x rpi:%x\n", 3103 ndlp, ndlp->nlp_DID, 3104 ndlp->nlp_usg_map, 3105 ndlp->nlp_rpi); 3106 3107 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3108 } 3109 lpfc_unreg_rpi(vports[i], ndlp); 3110 } 3111 } 3112 } 3113 lpfc_destroy_vport_work_array(phba, vports); 3114 3115 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3116 } 3117 3118 /** 3119 * lpfc_offline - Bring a HBA offline 3120 * @phba: pointer to lpfc hba data structure. 3121 * 3122 * This routine actually brings a HBA offline. It stops all the timers 3123 * associated with the HBA, brings down the SLI layer, and eventually 3124 * marks the HBA as in offline state for the upper layer protocol. 3125 **/ 3126 void 3127 lpfc_offline(struct lpfc_hba *phba) 3128 { 3129 struct Scsi_Host *shost; 3130 struct lpfc_vport **vports; 3131 int i; 3132 3133 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3134 return; 3135 3136 /* stop port and all timers associated with this hba */ 3137 lpfc_stop_port(phba); 3138 vports = lpfc_create_vport_work_array(phba); 3139 if (vports != NULL) 3140 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3141 lpfc_stop_vport_timers(vports[i]); 3142 lpfc_destroy_vport_work_array(phba, vports); 3143 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3144 "0460 Bring Adapter offline\n"); 3145 /* Bring down the SLI Layer and cleanup. The HBA is offline 3146 now. */ 3147 lpfc_sli_hba_down(phba); 3148 spin_lock_irq(&phba->hbalock); 3149 phba->work_ha = 0; 3150 spin_unlock_irq(&phba->hbalock); 3151 vports = lpfc_create_vport_work_array(phba); 3152 if (vports != NULL) 3153 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3154 shost = lpfc_shost_from_vport(vports[i]); 3155 spin_lock_irq(shost->host_lock); 3156 vports[i]->work_port_events = 0; 3157 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3158 spin_unlock_irq(shost->host_lock); 3159 } 3160 lpfc_destroy_vport_work_array(phba, vports); 3161 } 3162 3163 /** 3164 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3165 * @phba: pointer to lpfc hba data structure. 3166 * 3167 * This routine is to free all the SCSI buffers and IOCBs from the driver 3168 * list back to kernel. It is called from lpfc_pci_remove_one to free 3169 * the internal resources before the device is removed from the system. 3170 **/ 3171 static void 3172 lpfc_scsi_free(struct lpfc_hba *phba) 3173 { 3174 struct lpfc_scsi_buf *sb, *sb_next; 3175 3176 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3177 return; 3178 3179 spin_lock_irq(&phba->hbalock); 3180 3181 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3182 3183 spin_lock(&phba->scsi_buf_list_put_lock); 3184 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3185 list) { 3186 list_del(&sb->list); 3187 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3188 sb->dma_handle); 3189 kfree(sb); 3190 phba->total_scsi_bufs--; 3191 } 3192 spin_unlock(&phba->scsi_buf_list_put_lock); 3193 3194 spin_lock(&phba->scsi_buf_list_get_lock); 3195 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3196 list) { 3197 list_del(&sb->list); 3198 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3199 sb->dma_handle); 3200 kfree(sb); 3201 phba->total_scsi_bufs--; 3202 } 3203 spin_unlock(&phba->scsi_buf_list_get_lock); 3204 spin_unlock_irq(&phba->hbalock); 3205 } 3206 /** 3207 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3208 * @phba: pointer to lpfc hba data structure. 3209 * 3210 * This routine is to free all the NVME buffers and IOCBs from the driver 3211 * list back to kernel. It is called from lpfc_pci_remove_one to free 3212 * the internal resources before the device is removed from the system. 3213 **/ 3214 static void 3215 lpfc_nvme_free(struct lpfc_hba *phba) 3216 { 3217 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3218 3219 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3220 return; 3221 3222 spin_lock_irq(&phba->hbalock); 3223 3224 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3225 spin_lock(&phba->nvme_buf_list_put_lock); 3226 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3227 &phba->lpfc_nvme_buf_list_put, list) { 3228 list_del(&lpfc_ncmd->list); 3229 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3230 lpfc_ncmd->dma_handle); 3231 kfree(lpfc_ncmd); 3232 phba->total_nvme_bufs--; 3233 } 3234 spin_unlock(&phba->nvme_buf_list_put_lock); 3235 3236 spin_lock(&phba->nvme_buf_list_get_lock); 3237 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3238 &phba->lpfc_nvme_buf_list_get, list) { 3239 list_del(&lpfc_ncmd->list); 3240 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3241 lpfc_ncmd->dma_handle); 3242 kfree(lpfc_ncmd); 3243 phba->total_nvme_bufs--; 3244 } 3245 spin_unlock(&phba->nvme_buf_list_get_lock); 3246 spin_unlock_irq(&phba->hbalock); 3247 } 3248 /** 3249 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3250 * @phba: pointer to lpfc hba data structure. 3251 * 3252 * This routine first calculates the sizes of the current els and allocated 3253 * scsi sgl lists, and then goes through all sgls to updates the physical 3254 * XRIs assigned due to port function reset. During port initialization, the 3255 * current els and allocated scsi sgl lists are 0s. 3256 * 3257 * Return codes 3258 * 0 - successful (for now, it always returns 0) 3259 **/ 3260 int 3261 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3262 { 3263 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3264 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3265 LIST_HEAD(els_sgl_list); 3266 int rc; 3267 3268 /* 3269 * update on pci function's els xri-sgl list 3270 */ 3271 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3272 3273 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3274 /* els xri-sgl expanded */ 3275 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3276 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3277 "3157 ELS xri-sgl count increased from " 3278 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3279 els_xri_cnt); 3280 /* allocate the additional els sgls */ 3281 for (i = 0; i < xri_cnt; i++) { 3282 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3283 GFP_KERNEL); 3284 if (sglq_entry == NULL) { 3285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3286 "2562 Failure to allocate an " 3287 "ELS sgl entry:%d\n", i); 3288 rc = -ENOMEM; 3289 goto out_free_mem; 3290 } 3291 sglq_entry->buff_type = GEN_BUFF_TYPE; 3292 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3293 &sglq_entry->phys); 3294 if (sglq_entry->virt == NULL) { 3295 kfree(sglq_entry); 3296 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3297 "2563 Failure to allocate an " 3298 "ELS mbuf:%d\n", i); 3299 rc = -ENOMEM; 3300 goto out_free_mem; 3301 } 3302 sglq_entry->sgl = sglq_entry->virt; 3303 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3304 sglq_entry->state = SGL_FREED; 3305 list_add_tail(&sglq_entry->list, &els_sgl_list); 3306 } 3307 spin_lock_irq(&phba->hbalock); 3308 spin_lock(&phba->sli4_hba.sgl_list_lock); 3309 list_splice_init(&els_sgl_list, 3310 &phba->sli4_hba.lpfc_els_sgl_list); 3311 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3312 spin_unlock_irq(&phba->hbalock); 3313 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3314 /* els xri-sgl shrinked */ 3315 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3316 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3317 "3158 ELS xri-sgl count decreased from " 3318 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3319 els_xri_cnt); 3320 spin_lock_irq(&phba->hbalock); 3321 spin_lock(&phba->sli4_hba.sgl_list_lock); 3322 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3323 &els_sgl_list); 3324 /* release extra els sgls from list */ 3325 for (i = 0; i < xri_cnt; i++) { 3326 list_remove_head(&els_sgl_list, 3327 sglq_entry, struct lpfc_sglq, list); 3328 if (sglq_entry) { 3329 __lpfc_mbuf_free(phba, sglq_entry->virt, 3330 sglq_entry->phys); 3331 kfree(sglq_entry); 3332 } 3333 } 3334 list_splice_init(&els_sgl_list, 3335 &phba->sli4_hba.lpfc_els_sgl_list); 3336 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3337 spin_unlock_irq(&phba->hbalock); 3338 } else 3339 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3340 "3163 ELS xri-sgl count unchanged: %d\n", 3341 els_xri_cnt); 3342 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3343 3344 /* update xris to els sgls on the list */ 3345 sglq_entry = NULL; 3346 sglq_entry_next = NULL; 3347 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3348 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3349 lxri = lpfc_sli4_next_xritag(phba); 3350 if (lxri == NO_XRI) { 3351 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3352 "2400 Failed to allocate xri for " 3353 "ELS sgl\n"); 3354 rc = -ENOMEM; 3355 goto out_free_mem; 3356 } 3357 sglq_entry->sli4_lxritag = lxri; 3358 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3359 } 3360 return 0; 3361 3362 out_free_mem: 3363 lpfc_free_els_sgl_list(phba); 3364 return rc; 3365 } 3366 3367 /** 3368 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3369 * @phba: pointer to lpfc hba data structure. 3370 * 3371 * This routine first calculates the sizes of the current els and allocated 3372 * scsi sgl lists, and then goes through all sgls to updates the physical 3373 * XRIs assigned due to port function reset. During port initialization, the 3374 * current els and allocated scsi sgl lists are 0s. 3375 * 3376 * Return codes 3377 * 0 - successful (for now, it always returns 0) 3378 **/ 3379 int 3380 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3381 { 3382 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3383 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3384 uint16_t nvmet_xri_cnt, tot_cnt; 3385 LIST_HEAD(nvmet_sgl_list); 3386 int rc; 3387 3388 /* 3389 * update on pci function's nvmet xri-sgl list 3390 */ 3391 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3392 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post; 3393 tot_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3394 if (nvmet_xri_cnt > tot_cnt) { 3395 phba->cfg_nvmet_mrq_post = tot_cnt / phba->cfg_nvmet_mrq; 3396 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post; 3397 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3398 "6301 NVMET post-sgl count changed to %d\n", 3399 phba->cfg_nvmet_mrq_post); 3400 } 3401 3402 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3403 /* els xri-sgl expanded */ 3404 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3405 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3406 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3407 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3408 /* allocate the additional nvmet sgls */ 3409 for (i = 0; i < xri_cnt; i++) { 3410 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3411 GFP_KERNEL); 3412 if (sglq_entry == NULL) { 3413 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3414 "6303 Failure to allocate an " 3415 "NVMET sgl entry:%d\n", i); 3416 rc = -ENOMEM; 3417 goto out_free_mem; 3418 } 3419 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3420 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3421 &sglq_entry->phys); 3422 if (sglq_entry->virt == NULL) { 3423 kfree(sglq_entry); 3424 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3425 "6304 Failure to allocate an " 3426 "NVMET buf:%d\n", i); 3427 rc = -ENOMEM; 3428 goto out_free_mem; 3429 } 3430 sglq_entry->sgl = sglq_entry->virt; 3431 memset(sglq_entry->sgl, 0, 3432 phba->cfg_sg_dma_buf_size); 3433 sglq_entry->state = SGL_FREED; 3434 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3435 } 3436 spin_lock_irq(&phba->hbalock); 3437 spin_lock(&phba->sli4_hba.sgl_list_lock); 3438 list_splice_init(&nvmet_sgl_list, 3439 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3440 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3441 spin_unlock_irq(&phba->hbalock); 3442 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3443 /* nvmet xri-sgl shrunk */ 3444 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3445 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3446 "6305 NVMET xri-sgl count decreased from " 3447 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3448 nvmet_xri_cnt); 3449 spin_lock_irq(&phba->hbalock); 3450 spin_lock(&phba->sli4_hba.sgl_list_lock); 3451 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3452 &nvmet_sgl_list); 3453 /* release extra nvmet sgls from list */ 3454 for (i = 0; i < xri_cnt; i++) { 3455 list_remove_head(&nvmet_sgl_list, 3456 sglq_entry, struct lpfc_sglq, list); 3457 if (sglq_entry) { 3458 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3459 sglq_entry->phys); 3460 kfree(sglq_entry); 3461 } 3462 } 3463 list_splice_init(&nvmet_sgl_list, 3464 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3465 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3466 spin_unlock_irq(&phba->hbalock); 3467 } else 3468 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3469 "6306 NVMET xri-sgl count unchanged: %d\n", 3470 nvmet_xri_cnt); 3471 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3472 3473 /* update xris to nvmet sgls on the list */ 3474 sglq_entry = NULL; 3475 sglq_entry_next = NULL; 3476 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3477 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3478 lxri = lpfc_sli4_next_xritag(phba); 3479 if (lxri == NO_XRI) { 3480 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3481 "6307 Failed to allocate xri for " 3482 "NVMET sgl\n"); 3483 rc = -ENOMEM; 3484 goto out_free_mem; 3485 } 3486 sglq_entry->sli4_lxritag = lxri; 3487 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3488 } 3489 return 0; 3490 3491 out_free_mem: 3492 lpfc_free_nvmet_sgl_list(phba); 3493 return rc; 3494 } 3495 3496 /** 3497 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3498 * @phba: pointer to lpfc hba data structure. 3499 * 3500 * This routine first calculates the sizes of the current els and allocated 3501 * scsi sgl lists, and then goes through all sgls to updates the physical 3502 * XRIs assigned due to port function reset. During port initialization, the 3503 * current els and allocated scsi sgl lists are 0s. 3504 * 3505 * Return codes 3506 * 0 - successful (for now, it always returns 0) 3507 **/ 3508 int 3509 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3510 { 3511 struct lpfc_scsi_buf *psb, *psb_next; 3512 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3513 LIST_HEAD(scsi_sgl_list); 3514 int rc; 3515 3516 /* 3517 * update on pci function's els xri-sgl list 3518 */ 3519 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3520 phba->total_scsi_bufs = 0; 3521 3522 /* 3523 * update on pci function's allocated scsi xri-sgl list 3524 */ 3525 /* maximum number of xris available for scsi buffers */ 3526 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3527 els_xri_cnt; 3528 3529 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3530 return 0; 3531 3532 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3533 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3534 (phba->sli4_hba.scsi_xri_max * 3535 phba->cfg_xri_split) / 100; 3536 3537 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3538 spin_lock(&phba->scsi_buf_list_put_lock); 3539 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3540 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3541 spin_unlock(&phba->scsi_buf_list_put_lock); 3542 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3543 3544 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3545 "6060 Current allocated SCSI xri-sgl count:%d, " 3546 "maximum SCSI xri count:%d (split:%d)\n", 3547 phba->sli4_hba.scsi_xri_cnt, 3548 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3549 3550 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3551 /* max scsi xri shrinked below the allocated scsi buffers */ 3552 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3553 phba->sli4_hba.scsi_xri_max; 3554 /* release the extra allocated scsi buffers */ 3555 for (i = 0; i < scsi_xri_cnt; i++) { 3556 list_remove_head(&scsi_sgl_list, psb, 3557 struct lpfc_scsi_buf, list); 3558 if (psb) { 3559 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3560 psb->data, psb->dma_handle); 3561 kfree(psb); 3562 } 3563 } 3564 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3565 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3566 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3567 } 3568 3569 /* update xris associated to remaining allocated scsi buffers */ 3570 psb = NULL; 3571 psb_next = NULL; 3572 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3573 lxri = lpfc_sli4_next_xritag(phba); 3574 if (lxri == NO_XRI) { 3575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3576 "2560 Failed to allocate xri for " 3577 "scsi buffer\n"); 3578 rc = -ENOMEM; 3579 goto out_free_mem; 3580 } 3581 psb->cur_iocbq.sli4_lxritag = lxri; 3582 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3583 } 3584 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3585 spin_lock(&phba->scsi_buf_list_put_lock); 3586 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3587 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3588 spin_unlock(&phba->scsi_buf_list_put_lock); 3589 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3590 return 0; 3591 3592 out_free_mem: 3593 lpfc_scsi_free(phba); 3594 return rc; 3595 } 3596 3597 static uint64_t 3598 lpfc_get_wwpn(struct lpfc_hba *phba) 3599 { 3600 uint64_t wwn; 3601 int rc; 3602 LPFC_MBOXQ_t *mboxq; 3603 MAILBOX_t *mb; 3604 3605 if (phba->sli_rev < LPFC_SLI_REV4) { 3606 /* Reset the port first */ 3607 lpfc_sli_brdrestart(phba); 3608 rc = lpfc_sli_chipset_init(phba); 3609 if (rc) 3610 return (uint64_t)-1; 3611 } 3612 3613 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3614 GFP_KERNEL); 3615 if (!mboxq) 3616 return (uint64_t)-1; 3617 3618 /* First get WWN of HBA instance */ 3619 lpfc_read_nv(phba, mboxq); 3620 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3621 if (rc != MBX_SUCCESS) { 3622 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3623 "6019 Mailbox failed , mbxCmd x%x " 3624 "READ_NV, mbxStatus x%x\n", 3625 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3626 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3627 mempool_free(mboxq, phba->mbox_mem_pool); 3628 return (uint64_t) -1; 3629 } 3630 mb = &mboxq->u.mb; 3631 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3632 /* wwn is WWPN of HBA instance */ 3633 mempool_free(mboxq, phba->mbox_mem_pool); 3634 if (phba->sli_rev == LPFC_SLI_REV4) 3635 return be64_to_cpu(wwn); 3636 else 3637 return (((wwn & 0xffffffff00000000) >> 32) | 3638 ((wwn & 0x00000000ffffffff) << 32)); 3639 3640 } 3641 3642 /** 3643 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3644 * @phba: pointer to lpfc hba data structure. 3645 * 3646 * This routine first calculates the sizes of the current els and allocated 3647 * scsi sgl lists, and then goes through all sgls to updates the physical 3648 * XRIs assigned due to port function reset. During port initialization, the 3649 * current els and allocated scsi sgl lists are 0s. 3650 * 3651 * Return codes 3652 * 0 - successful (for now, it always returns 0) 3653 **/ 3654 int 3655 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3656 { 3657 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3658 uint16_t i, lxri, els_xri_cnt; 3659 uint16_t nvme_xri_cnt, nvme_xri_max; 3660 LIST_HEAD(nvme_sgl_list); 3661 int rc; 3662 3663 phba->total_nvme_bufs = 0; 3664 3665 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3666 return 0; 3667 /* 3668 * update on pci function's allocated nvme xri-sgl list 3669 */ 3670 3671 /* maximum number of xris available for nvme buffers */ 3672 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3673 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3674 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3675 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3676 3677 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3678 "6074 Current allocated NVME xri-sgl count:%d, " 3679 "maximum NVME xri count:%d\n", 3680 phba->sli4_hba.nvme_xri_cnt, 3681 phba->sli4_hba.nvme_xri_max); 3682 3683 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3684 spin_lock(&phba->nvme_buf_list_put_lock); 3685 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3686 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3687 spin_unlock(&phba->nvme_buf_list_put_lock); 3688 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3689 3690 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3691 /* max nvme xri shrunk below the allocated nvme buffers */ 3692 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3693 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3694 phba->sli4_hba.nvme_xri_max; 3695 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3696 /* release the extra allocated nvme buffers */ 3697 for (i = 0; i < nvme_xri_cnt; i++) { 3698 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3699 struct lpfc_nvme_buf, list); 3700 if (lpfc_ncmd) { 3701 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3702 lpfc_ncmd->data, 3703 lpfc_ncmd->dma_handle); 3704 kfree(lpfc_ncmd); 3705 } 3706 } 3707 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3708 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3709 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3710 } 3711 3712 /* update xris associated to remaining allocated nvme buffers */ 3713 lpfc_ncmd = NULL; 3714 lpfc_ncmd_next = NULL; 3715 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3716 &nvme_sgl_list, list) { 3717 lxri = lpfc_sli4_next_xritag(phba); 3718 if (lxri == NO_XRI) { 3719 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3720 "6075 Failed to allocate xri for " 3721 "nvme buffer\n"); 3722 rc = -ENOMEM; 3723 goto out_free_mem; 3724 } 3725 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3726 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3727 } 3728 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3729 spin_lock(&phba->nvme_buf_list_put_lock); 3730 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3731 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3732 spin_unlock(&phba->nvme_buf_list_put_lock); 3733 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3734 return 0; 3735 3736 out_free_mem: 3737 lpfc_nvme_free(phba); 3738 return rc; 3739 } 3740 3741 /** 3742 * lpfc_create_port - Create an FC port 3743 * @phba: pointer to lpfc hba data structure. 3744 * @instance: a unique integer ID to this FC port. 3745 * @dev: pointer to the device data structure. 3746 * 3747 * This routine creates a FC port for the upper layer protocol. The FC port 3748 * can be created on top of either a physical port or a virtual port provided 3749 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3750 * and associates the FC port created before adding the shost into the SCSI 3751 * layer. 3752 * 3753 * Return codes 3754 * @vport - pointer to the virtual N_Port data structure. 3755 * NULL - port create failed. 3756 **/ 3757 struct lpfc_vport * 3758 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3759 { 3760 struct lpfc_vport *vport; 3761 struct Scsi_Host *shost = NULL; 3762 int error = 0; 3763 int i; 3764 uint64_t wwn; 3765 bool use_no_reset_hba = false; 3766 3767 wwn = lpfc_get_wwpn(phba); 3768 3769 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3770 if (wwn == lpfc_no_hba_reset[i]) { 3771 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3772 "6020 Setting use_no_reset port=%llx\n", 3773 wwn); 3774 use_no_reset_hba = true; 3775 break; 3776 } 3777 } 3778 3779 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3780 if (dev != &phba->pcidev->dev) { 3781 shost = scsi_host_alloc(&lpfc_vport_template, 3782 sizeof(struct lpfc_vport)); 3783 } else { 3784 if (!use_no_reset_hba) 3785 shost = scsi_host_alloc(&lpfc_template, 3786 sizeof(struct lpfc_vport)); 3787 else 3788 shost = scsi_host_alloc(&lpfc_template_no_hr, 3789 sizeof(struct lpfc_vport)); 3790 } 3791 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3792 shost = scsi_host_alloc(&lpfc_template_nvme, 3793 sizeof(struct lpfc_vport)); 3794 } 3795 if (!shost) 3796 goto out; 3797 3798 vport = (struct lpfc_vport *) shost->hostdata; 3799 vport->phba = phba; 3800 vport->load_flag |= FC_LOADING; 3801 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3802 vport->fc_rscn_flush = 0; 3803 lpfc_get_vport_cfgparam(vport); 3804 3805 shost->unique_id = instance; 3806 shost->max_id = LPFC_MAX_TARGET; 3807 shost->max_lun = vport->cfg_max_luns; 3808 shost->this_id = -1; 3809 shost->max_cmd_len = 16; 3810 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3811 if (phba->sli_rev == LPFC_SLI_REV4) { 3812 shost->dma_boundary = 3813 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3814 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3815 } 3816 3817 /* 3818 * Set initial can_queue value since 0 is no longer supported and 3819 * scsi_add_host will fail. This will be adjusted later based on the 3820 * max xri value determined in hba setup. 3821 */ 3822 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3823 if (dev != &phba->pcidev->dev) { 3824 shost->transportt = lpfc_vport_transport_template; 3825 vport->port_type = LPFC_NPIV_PORT; 3826 } else { 3827 shost->transportt = lpfc_transport_template; 3828 vport->port_type = LPFC_PHYSICAL_PORT; 3829 } 3830 3831 /* Initialize all internally managed lists. */ 3832 INIT_LIST_HEAD(&vport->fc_nodes); 3833 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3834 spin_lock_init(&vport->work_port_lock); 3835 3836 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, 3837 (unsigned long)vport); 3838 3839 setup_timer(&vport->els_tmofunc, lpfc_els_timeout, 3840 (unsigned long)vport); 3841 3842 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 3843 (unsigned long)vport); 3844 3845 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3846 if (error) 3847 goto out_put_shost; 3848 3849 spin_lock_irq(&phba->hbalock); 3850 list_add_tail(&vport->listentry, &phba->port_list); 3851 spin_unlock_irq(&phba->hbalock); 3852 return vport; 3853 3854 out_put_shost: 3855 scsi_host_put(shost); 3856 out: 3857 return NULL; 3858 } 3859 3860 /** 3861 * destroy_port - destroy an FC port 3862 * @vport: pointer to an lpfc virtual N_Port data structure. 3863 * 3864 * This routine destroys a FC port from the upper layer protocol. All the 3865 * resources associated with the port are released. 3866 **/ 3867 void 3868 destroy_port(struct lpfc_vport *vport) 3869 { 3870 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3871 struct lpfc_hba *phba = vport->phba; 3872 3873 lpfc_debugfs_terminate(vport); 3874 fc_remove_host(shost); 3875 scsi_remove_host(shost); 3876 3877 spin_lock_irq(&phba->hbalock); 3878 list_del_init(&vport->listentry); 3879 spin_unlock_irq(&phba->hbalock); 3880 3881 lpfc_cleanup(vport); 3882 return; 3883 } 3884 3885 /** 3886 * lpfc_get_instance - Get a unique integer ID 3887 * 3888 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3889 * uses the kernel idr facility to perform the task. 3890 * 3891 * Return codes: 3892 * instance - a unique integer ID allocated as the new instance. 3893 * -1 - lpfc get instance failed. 3894 **/ 3895 int 3896 lpfc_get_instance(void) 3897 { 3898 int ret; 3899 3900 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3901 return ret < 0 ? -1 : ret; 3902 } 3903 3904 /** 3905 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3906 * @shost: pointer to SCSI host data structure. 3907 * @time: elapsed time of the scan in jiffies. 3908 * 3909 * This routine is called by the SCSI layer with a SCSI host to determine 3910 * whether the scan host is finished. 3911 * 3912 * Note: there is no scan_start function as adapter initialization will have 3913 * asynchronously kicked off the link initialization. 3914 * 3915 * Return codes 3916 * 0 - SCSI host scan is not over yet. 3917 * 1 - SCSI host scan is over. 3918 **/ 3919 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3920 { 3921 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3922 struct lpfc_hba *phba = vport->phba; 3923 int stat = 0; 3924 3925 spin_lock_irq(shost->host_lock); 3926 3927 if (vport->load_flag & FC_UNLOADING) { 3928 stat = 1; 3929 goto finished; 3930 } 3931 if (time >= msecs_to_jiffies(30 * 1000)) { 3932 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3933 "0461 Scanning longer than 30 " 3934 "seconds. Continuing initialization\n"); 3935 stat = 1; 3936 goto finished; 3937 } 3938 if (time >= msecs_to_jiffies(15 * 1000) && 3939 phba->link_state <= LPFC_LINK_DOWN) { 3940 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3941 "0465 Link down longer than 15 " 3942 "seconds. Continuing initialization\n"); 3943 stat = 1; 3944 goto finished; 3945 } 3946 3947 if (vport->port_state != LPFC_VPORT_READY) 3948 goto finished; 3949 if (vport->num_disc_nodes || vport->fc_prli_sent) 3950 goto finished; 3951 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3952 goto finished; 3953 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3954 goto finished; 3955 3956 stat = 1; 3957 3958 finished: 3959 spin_unlock_irq(shost->host_lock); 3960 return stat; 3961 } 3962 3963 /** 3964 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3965 * @shost: pointer to SCSI host data structure. 3966 * 3967 * This routine initializes a given SCSI host attributes on a FC port. The 3968 * SCSI host can be either on top of a physical port or a virtual port. 3969 **/ 3970 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3971 { 3972 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3973 struct lpfc_hba *phba = vport->phba; 3974 /* 3975 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3976 */ 3977 3978 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3979 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3980 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3981 3982 memset(fc_host_supported_fc4s(shost), 0, 3983 sizeof(fc_host_supported_fc4s(shost))); 3984 fc_host_supported_fc4s(shost)[2] = 1; 3985 fc_host_supported_fc4s(shost)[7] = 1; 3986 3987 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3988 sizeof fc_host_symbolic_name(shost)); 3989 3990 fc_host_supported_speeds(shost) = 0; 3991 if (phba->lmt & LMT_32Gb) 3992 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 3993 if (phba->lmt & LMT_16Gb) 3994 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3995 if (phba->lmt & LMT_10Gb) 3996 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3997 if (phba->lmt & LMT_8Gb) 3998 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3999 if (phba->lmt & LMT_4Gb) 4000 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4001 if (phba->lmt & LMT_2Gb) 4002 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4003 if (phba->lmt & LMT_1Gb) 4004 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4005 4006 fc_host_maxframe_size(shost) = 4007 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4008 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4009 4010 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4011 4012 /* This value is also unchanging */ 4013 memset(fc_host_active_fc4s(shost), 0, 4014 sizeof(fc_host_active_fc4s(shost))); 4015 fc_host_active_fc4s(shost)[2] = 1; 4016 fc_host_active_fc4s(shost)[7] = 1; 4017 4018 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4019 spin_lock_irq(shost->host_lock); 4020 vport->load_flag &= ~FC_LOADING; 4021 spin_unlock_irq(shost->host_lock); 4022 } 4023 4024 /** 4025 * lpfc_stop_port_s3 - Stop SLI3 device port 4026 * @phba: pointer to lpfc hba data structure. 4027 * 4028 * This routine is invoked to stop an SLI3 device port, it stops the device 4029 * from generating interrupts and stops the device driver's timers for the 4030 * device. 4031 **/ 4032 static void 4033 lpfc_stop_port_s3(struct lpfc_hba *phba) 4034 { 4035 /* Clear all interrupt enable conditions */ 4036 writel(0, phba->HCregaddr); 4037 readl(phba->HCregaddr); /* flush */ 4038 /* Clear all pending interrupts */ 4039 writel(0xffffffff, phba->HAregaddr); 4040 readl(phba->HAregaddr); /* flush */ 4041 4042 /* Reset some HBA SLI setup states */ 4043 lpfc_stop_hba_timers(phba); 4044 phba->pport->work_port_events = 0; 4045 } 4046 4047 /** 4048 * lpfc_stop_port_s4 - Stop SLI4 device port 4049 * @phba: pointer to lpfc hba data structure. 4050 * 4051 * This routine is invoked to stop an SLI4 device port, it stops the device 4052 * from generating interrupts and stops the device driver's timers for the 4053 * device. 4054 **/ 4055 static void 4056 lpfc_stop_port_s4(struct lpfc_hba *phba) 4057 { 4058 /* Reset some HBA SLI4 setup states */ 4059 lpfc_stop_hba_timers(phba); 4060 phba->pport->work_port_events = 0; 4061 phba->sli4_hba.intr_enable = 0; 4062 } 4063 4064 /** 4065 * lpfc_stop_port - Wrapper function for stopping hba port 4066 * @phba: Pointer to HBA context object. 4067 * 4068 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4069 * the API jump table function pointer from the lpfc_hba struct. 4070 **/ 4071 void 4072 lpfc_stop_port(struct lpfc_hba *phba) 4073 { 4074 phba->lpfc_stop_port(phba); 4075 } 4076 4077 /** 4078 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4079 * @phba: Pointer to hba for which this call is being executed. 4080 * 4081 * This routine starts the timer waiting for the FCF rediscovery to complete. 4082 **/ 4083 void 4084 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4085 { 4086 unsigned long fcf_redisc_wait_tmo = 4087 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4088 /* Start fcf rediscovery wait period timer */ 4089 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4090 spin_lock_irq(&phba->hbalock); 4091 /* Allow action to new fcf asynchronous event */ 4092 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4093 /* Mark the FCF rediscovery pending state */ 4094 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4095 spin_unlock_irq(&phba->hbalock); 4096 } 4097 4098 /** 4099 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4100 * @ptr: Map to lpfc_hba data structure pointer. 4101 * 4102 * This routine is invoked when waiting for FCF table rediscover has been 4103 * timed out. If new FCF record(s) has (have) been discovered during the 4104 * wait period, a new FCF event shall be added to the FCOE async event 4105 * list, and then worker thread shall be waked up for processing from the 4106 * worker thread context. 4107 **/ 4108 static void 4109 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4110 { 4111 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4112 4113 /* Don't send FCF rediscovery event if timer cancelled */ 4114 spin_lock_irq(&phba->hbalock); 4115 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4116 spin_unlock_irq(&phba->hbalock); 4117 return; 4118 } 4119 /* Clear FCF rediscovery timer pending flag */ 4120 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4121 /* FCF rediscovery event to worker thread */ 4122 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4123 spin_unlock_irq(&phba->hbalock); 4124 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4125 "2776 FCF rediscover quiescent timer expired\n"); 4126 /* wake up worker thread */ 4127 lpfc_worker_wake_up(phba); 4128 } 4129 4130 /** 4131 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4132 * @phba: pointer to lpfc hba data structure. 4133 * @acqe_link: pointer to the async link completion queue entry. 4134 * 4135 * This routine is to parse the SLI4 link-attention link fault code and 4136 * translate it into the base driver's read link attention mailbox command 4137 * status. 4138 * 4139 * Return: Link-attention status in terms of base driver's coding. 4140 **/ 4141 static uint16_t 4142 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4143 struct lpfc_acqe_link *acqe_link) 4144 { 4145 uint16_t latt_fault; 4146 4147 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4148 case LPFC_ASYNC_LINK_FAULT_NONE: 4149 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4150 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4151 latt_fault = 0; 4152 break; 4153 default: 4154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4155 "0398 Invalid link fault code: x%x\n", 4156 bf_get(lpfc_acqe_link_fault, acqe_link)); 4157 latt_fault = MBXERR_ERROR; 4158 break; 4159 } 4160 return latt_fault; 4161 } 4162 4163 /** 4164 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4165 * @phba: pointer to lpfc hba data structure. 4166 * @acqe_link: pointer to the async link completion queue entry. 4167 * 4168 * This routine is to parse the SLI4 link attention type and translate it 4169 * into the base driver's link attention type coding. 4170 * 4171 * Return: Link attention type in terms of base driver's coding. 4172 **/ 4173 static uint8_t 4174 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4175 struct lpfc_acqe_link *acqe_link) 4176 { 4177 uint8_t att_type; 4178 4179 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4180 case LPFC_ASYNC_LINK_STATUS_DOWN: 4181 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4182 att_type = LPFC_ATT_LINK_DOWN; 4183 break; 4184 case LPFC_ASYNC_LINK_STATUS_UP: 4185 /* Ignore physical link up events - wait for logical link up */ 4186 att_type = LPFC_ATT_RESERVED; 4187 break; 4188 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4189 att_type = LPFC_ATT_LINK_UP; 4190 break; 4191 default: 4192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4193 "0399 Invalid link attention type: x%x\n", 4194 bf_get(lpfc_acqe_link_status, acqe_link)); 4195 att_type = LPFC_ATT_RESERVED; 4196 break; 4197 } 4198 return att_type; 4199 } 4200 4201 /** 4202 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4203 * @phba: pointer to lpfc hba data structure. 4204 * 4205 * This routine is to get an SLI3 FC port's link speed in Mbps. 4206 * 4207 * Return: link speed in terms of Mbps. 4208 **/ 4209 uint32_t 4210 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4211 { 4212 uint32_t link_speed; 4213 4214 if (!lpfc_is_link_up(phba)) 4215 return 0; 4216 4217 if (phba->sli_rev <= LPFC_SLI_REV3) { 4218 switch (phba->fc_linkspeed) { 4219 case LPFC_LINK_SPEED_1GHZ: 4220 link_speed = 1000; 4221 break; 4222 case LPFC_LINK_SPEED_2GHZ: 4223 link_speed = 2000; 4224 break; 4225 case LPFC_LINK_SPEED_4GHZ: 4226 link_speed = 4000; 4227 break; 4228 case LPFC_LINK_SPEED_8GHZ: 4229 link_speed = 8000; 4230 break; 4231 case LPFC_LINK_SPEED_10GHZ: 4232 link_speed = 10000; 4233 break; 4234 case LPFC_LINK_SPEED_16GHZ: 4235 link_speed = 16000; 4236 break; 4237 default: 4238 link_speed = 0; 4239 } 4240 } else { 4241 if (phba->sli4_hba.link_state.logical_speed) 4242 link_speed = 4243 phba->sli4_hba.link_state.logical_speed; 4244 else 4245 link_speed = phba->sli4_hba.link_state.speed; 4246 } 4247 return link_speed; 4248 } 4249 4250 /** 4251 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4252 * @phba: pointer to lpfc hba data structure. 4253 * @evt_code: asynchronous event code. 4254 * @speed_code: asynchronous event link speed code. 4255 * 4256 * This routine is to parse the giving SLI4 async event link speed code into 4257 * value of Mbps for the link speed. 4258 * 4259 * Return: link speed in terms of Mbps. 4260 **/ 4261 static uint32_t 4262 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4263 uint8_t speed_code) 4264 { 4265 uint32_t port_speed; 4266 4267 switch (evt_code) { 4268 case LPFC_TRAILER_CODE_LINK: 4269 switch (speed_code) { 4270 case LPFC_ASYNC_LINK_SPEED_ZERO: 4271 port_speed = 0; 4272 break; 4273 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4274 port_speed = 10; 4275 break; 4276 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4277 port_speed = 100; 4278 break; 4279 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4280 port_speed = 1000; 4281 break; 4282 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4283 port_speed = 10000; 4284 break; 4285 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4286 port_speed = 20000; 4287 break; 4288 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4289 port_speed = 25000; 4290 break; 4291 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4292 port_speed = 40000; 4293 break; 4294 default: 4295 port_speed = 0; 4296 } 4297 break; 4298 case LPFC_TRAILER_CODE_FC: 4299 switch (speed_code) { 4300 case LPFC_FC_LA_SPEED_UNKNOWN: 4301 port_speed = 0; 4302 break; 4303 case LPFC_FC_LA_SPEED_1G: 4304 port_speed = 1000; 4305 break; 4306 case LPFC_FC_LA_SPEED_2G: 4307 port_speed = 2000; 4308 break; 4309 case LPFC_FC_LA_SPEED_4G: 4310 port_speed = 4000; 4311 break; 4312 case LPFC_FC_LA_SPEED_8G: 4313 port_speed = 8000; 4314 break; 4315 case LPFC_FC_LA_SPEED_10G: 4316 port_speed = 10000; 4317 break; 4318 case LPFC_FC_LA_SPEED_16G: 4319 port_speed = 16000; 4320 break; 4321 case LPFC_FC_LA_SPEED_32G: 4322 port_speed = 32000; 4323 break; 4324 default: 4325 port_speed = 0; 4326 } 4327 break; 4328 default: 4329 port_speed = 0; 4330 } 4331 return port_speed; 4332 } 4333 4334 /** 4335 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4336 * @phba: pointer to lpfc hba data structure. 4337 * @acqe_link: pointer to the async link completion queue entry. 4338 * 4339 * This routine is to handle the SLI4 asynchronous FCoE link event. 4340 **/ 4341 static void 4342 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4343 struct lpfc_acqe_link *acqe_link) 4344 { 4345 struct lpfc_dmabuf *mp; 4346 LPFC_MBOXQ_t *pmb; 4347 MAILBOX_t *mb; 4348 struct lpfc_mbx_read_top *la; 4349 uint8_t att_type; 4350 int rc; 4351 4352 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4353 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4354 return; 4355 phba->fcoe_eventtag = acqe_link->event_tag; 4356 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4357 if (!pmb) { 4358 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4359 "0395 The mboxq allocation failed\n"); 4360 return; 4361 } 4362 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4363 if (!mp) { 4364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4365 "0396 The lpfc_dmabuf allocation failed\n"); 4366 goto out_free_pmb; 4367 } 4368 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4369 if (!mp->virt) { 4370 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4371 "0397 The mbuf allocation failed\n"); 4372 goto out_free_dmabuf; 4373 } 4374 4375 /* Cleanup any outstanding ELS commands */ 4376 lpfc_els_flush_all_cmd(phba); 4377 4378 /* Block ELS IOCBs until we have done process link event */ 4379 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4380 4381 /* Update link event statistics */ 4382 phba->sli.slistat.link_event++; 4383 4384 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4385 lpfc_read_topology(phba, pmb, mp); 4386 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4387 pmb->vport = phba->pport; 4388 4389 /* Keep the link status for extra SLI4 state machine reference */ 4390 phba->sli4_hba.link_state.speed = 4391 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4392 bf_get(lpfc_acqe_link_speed, acqe_link)); 4393 phba->sli4_hba.link_state.duplex = 4394 bf_get(lpfc_acqe_link_duplex, acqe_link); 4395 phba->sli4_hba.link_state.status = 4396 bf_get(lpfc_acqe_link_status, acqe_link); 4397 phba->sli4_hba.link_state.type = 4398 bf_get(lpfc_acqe_link_type, acqe_link); 4399 phba->sli4_hba.link_state.number = 4400 bf_get(lpfc_acqe_link_number, acqe_link); 4401 phba->sli4_hba.link_state.fault = 4402 bf_get(lpfc_acqe_link_fault, acqe_link); 4403 phba->sli4_hba.link_state.logical_speed = 4404 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4405 4406 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4407 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4408 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4409 "Logical speed:%dMbps Fault:%d\n", 4410 phba->sli4_hba.link_state.speed, 4411 phba->sli4_hba.link_state.topology, 4412 phba->sli4_hba.link_state.status, 4413 phba->sli4_hba.link_state.type, 4414 phba->sli4_hba.link_state.number, 4415 phba->sli4_hba.link_state.logical_speed, 4416 phba->sli4_hba.link_state.fault); 4417 /* 4418 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4419 * topology info. Note: Optional for non FC-AL ports. 4420 */ 4421 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4422 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4423 if (rc == MBX_NOT_FINISHED) 4424 goto out_free_dmabuf; 4425 return; 4426 } 4427 /* 4428 * For FCoE Mode: fill in all the topology information we need and call 4429 * the READ_TOPOLOGY completion routine to continue without actually 4430 * sending the READ_TOPOLOGY mailbox command to the port. 4431 */ 4432 /* Parse and translate status field */ 4433 mb = &pmb->u.mb; 4434 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4435 4436 /* Parse and translate link attention fields */ 4437 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4438 la->eventTag = acqe_link->event_tag; 4439 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4440 bf_set(lpfc_mbx_read_top_link_spd, la, 4441 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4442 4443 /* Fake the the following irrelvant fields */ 4444 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4445 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4446 bf_set(lpfc_mbx_read_top_il, la, 0); 4447 bf_set(lpfc_mbx_read_top_pb, la, 0); 4448 bf_set(lpfc_mbx_read_top_fa, la, 0); 4449 bf_set(lpfc_mbx_read_top_mm, la, 0); 4450 4451 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4452 lpfc_mbx_cmpl_read_topology(phba, pmb); 4453 4454 return; 4455 4456 out_free_dmabuf: 4457 kfree(mp); 4458 out_free_pmb: 4459 mempool_free(pmb, phba->mbox_mem_pool); 4460 } 4461 4462 /** 4463 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4464 * @phba: pointer to lpfc hba data structure. 4465 * @acqe_fc: pointer to the async fc completion queue entry. 4466 * 4467 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4468 * that the event was received and then issue a read_topology mailbox command so 4469 * that the rest of the driver will treat it the same as SLI3. 4470 **/ 4471 static void 4472 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4473 { 4474 struct lpfc_dmabuf *mp; 4475 LPFC_MBOXQ_t *pmb; 4476 MAILBOX_t *mb; 4477 struct lpfc_mbx_read_top *la; 4478 int rc; 4479 4480 if (bf_get(lpfc_trailer_type, acqe_fc) != 4481 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4483 "2895 Non FC link Event detected.(%d)\n", 4484 bf_get(lpfc_trailer_type, acqe_fc)); 4485 return; 4486 } 4487 /* Keep the link status for extra SLI4 state machine reference */ 4488 phba->sli4_hba.link_state.speed = 4489 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4490 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4491 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4492 phba->sli4_hba.link_state.topology = 4493 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4494 phba->sli4_hba.link_state.status = 4495 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4496 phba->sli4_hba.link_state.type = 4497 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4498 phba->sli4_hba.link_state.number = 4499 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4500 phba->sli4_hba.link_state.fault = 4501 bf_get(lpfc_acqe_link_fault, acqe_fc); 4502 phba->sli4_hba.link_state.logical_speed = 4503 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4504 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4505 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4506 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4507 "%dMbps Fault:%d\n", 4508 phba->sli4_hba.link_state.speed, 4509 phba->sli4_hba.link_state.topology, 4510 phba->sli4_hba.link_state.status, 4511 phba->sli4_hba.link_state.type, 4512 phba->sli4_hba.link_state.number, 4513 phba->sli4_hba.link_state.logical_speed, 4514 phba->sli4_hba.link_state.fault); 4515 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4516 if (!pmb) { 4517 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4518 "2897 The mboxq allocation failed\n"); 4519 return; 4520 } 4521 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4522 if (!mp) { 4523 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4524 "2898 The lpfc_dmabuf allocation failed\n"); 4525 goto out_free_pmb; 4526 } 4527 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4528 if (!mp->virt) { 4529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4530 "2899 The mbuf allocation failed\n"); 4531 goto out_free_dmabuf; 4532 } 4533 4534 /* Cleanup any outstanding ELS commands */ 4535 lpfc_els_flush_all_cmd(phba); 4536 4537 /* Block ELS IOCBs until we have done process link event */ 4538 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4539 4540 /* Update link event statistics */ 4541 phba->sli.slistat.link_event++; 4542 4543 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4544 lpfc_read_topology(phba, pmb, mp); 4545 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4546 pmb->vport = phba->pport; 4547 4548 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4549 /* Parse and translate status field */ 4550 mb = &pmb->u.mb; 4551 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4552 (void *)acqe_fc); 4553 4554 /* Parse and translate link attention fields */ 4555 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4556 la->eventTag = acqe_fc->event_tag; 4557 4558 if (phba->sli4_hba.link_state.status == 4559 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4560 bf_set(lpfc_mbx_read_top_att_type, la, 4561 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4562 } else { 4563 bf_set(lpfc_mbx_read_top_att_type, la, 4564 LPFC_FC_LA_TYPE_LINK_DOWN); 4565 } 4566 /* Invoke the mailbox command callback function */ 4567 lpfc_mbx_cmpl_read_topology(phba, pmb); 4568 4569 return; 4570 } 4571 4572 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4573 if (rc == MBX_NOT_FINISHED) 4574 goto out_free_dmabuf; 4575 return; 4576 4577 out_free_dmabuf: 4578 kfree(mp); 4579 out_free_pmb: 4580 mempool_free(pmb, phba->mbox_mem_pool); 4581 } 4582 4583 /** 4584 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4585 * @phba: pointer to lpfc hba data structure. 4586 * @acqe_fc: pointer to the async SLI completion queue entry. 4587 * 4588 * This routine is to handle the SLI4 asynchronous SLI events. 4589 **/ 4590 static void 4591 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4592 { 4593 char port_name; 4594 char message[128]; 4595 uint8_t status; 4596 uint8_t evt_type; 4597 uint8_t operational = 0; 4598 struct temp_event temp_event_data; 4599 struct lpfc_acqe_misconfigured_event *misconfigured; 4600 struct Scsi_Host *shost; 4601 4602 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4603 4604 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4605 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4606 "x%08x SLI Event Type:%d\n", 4607 acqe_sli->event_data1, acqe_sli->event_data2, 4608 evt_type); 4609 4610 port_name = phba->Port[0]; 4611 if (port_name == 0x00) 4612 port_name = '?'; /* get port name is empty */ 4613 4614 switch (evt_type) { 4615 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4616 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4617 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4618 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4619 4620 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4621 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4622 acqe_sli->event_data1, port_name); 4623 4624 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4625 shost = lpfc_shost_from_vport(phba->pport); 4626 fc_host_post_vendor_event(shost, fc_get_event_number(), 4627 sizeof(temp_event_data), 4628 (char *)&temp_event_data, 4629 SCSI_NL_VID_TYPE_PCI 4630 | PCI_VENDOR_ID_EMULEX); 4631 break; 4632 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4633 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4634 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4635 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4636 4637 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4638 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4639 acqe_sli->event_data1, port_name); 4640 4641 shost = lpfc_shost_from_vport(phba->pport); 4642 fc_host_post_vendor_event(shost, fc_get_event_number(), 4643 sizeof(temp_event_data), 4644 (char *)&temp_event_data, 4645 SCSI_NL_VID_TYPE_PCI 4646 | PCI_VENDOR_ID_EMULEX); 4647 break; 4648 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4649 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4650 &acqe_sli->event_data1; 4651 4652 /* fetch the status for this port */ 4653 switch (phba->sli4_hba.lnk_info.lnk_no) { 4654 case LPFC_LINK_NUMBER_0: 4655 status = bf_get(lpfc_sli_misconfigured_port0_state, 4656 &misconfigured->theEvent); 4657 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4658 &misconfigured->theEvent); 4659 break; 4660 case LPFC_LINK_NUMBER_1: 4661 status = bf_get(lpfc_sli_misconfigured_port1_state, 4662 &misconfigured->theEvent); 4663 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4664 &misconfigured->theEvent); 4665 break; 4666 case LPFC_LINK_NUMBER_2: 4667 status = bf_get(lpfc_sli_misconfigured_port2_state, 4668 &misconfigured->theEvent); 4669 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4670 &misconfigured->theEvent); 4671 break; 4672 case LPFC_LINK_NUMBER_3: 4673 status = bf_get(lpfc_sli_misconfigured_port3_state, 4674 &misconfigured->theEvent); 4675 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4676 &misconfigured->theEvent); 4677 break; 4678 default: 4679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4680 "3296 " 4681 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4682 "event: Invalid link %d", 4683 phba->sli4_hba.lnk_info.lnk_no); 4684 return; 4685 } 4686 4687 /* Skip if optic state unchanged */ 4688 if (phba->sli4_hba.lnk_info.optic_state == status) 4689 return; 4690 4691 switch (status) { 4692 case LPFC_SLI_EVENT_STATUS_VALID: 4693 sprintf(message, "Physical Link is functional"); 4694 break; 4695 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4696 sprintf(message, "Optics faulted/incorrectly " 4697 "installed/not installed - Reseat optics, " 4698 "if issue not resolved, replace."); 4699 break; 4700 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4701 sprintf(message, 4702 "Optics of two types installed - Remove one " 4703 "optic or install matching pair of optics."); 4704 break; 4705 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4706 sprintf(message, "Incompatible optics - Replace with " 4707 "compatible optics for card to function."); 4708 break; 4709 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4710 sprintf(message, "Unqualified optics - Replace with " 4711 "Avago optics for Warranty and Technical " 4712 "Support - Link is%s operational", 4713 (operational) ? " not" : ""); 4714 break; 4715 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4716 sprintf(message, "Uncertified optics - Replace with " 4717 "Avago-certified optics to enable link " 4718 "operation - Link is%s operational", 4719 (operational) ? " not" : ""); 4720 break; 4721 default: 4722 /* firmware is reporting a status we don't know about */ 4723 sprintf(message, "Unknown event status x%02x", status); 4724 break; 4725 } 4726 phba->sli4_hba.lnk_info.optic_state = status; 4727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4728 "3176 Port Name %c %s\n", port_name, message); 4729 break; 4730 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4731 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4732 "3192 Remote DPort Test Initiated - " 4733 "Event Data1:x%08x Event Data2: x%08x\n", 4734 acqe_sli->event_data1, acqe_sli->event_data2); 4735 break; 4736 default: 4737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4738 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4739 "x%08x SLI Event Type:%d\n", 4740 acqe_sli->event_data1, acqe_sli->event_data2, 4741 evt_type); 4742 break; 4743 } 4744 } 4745 4746 /** 4747 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4748 * @vport: pointer to vport data structure. 4749 * 4750 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4751 * response to a CVL event. 4752 * 4753 * Return the pointer to the ndlp with the vport if successful, otherwise 4754 * return NULL. 4755 **/ 4756 static struct lpfc_nodelist * 4757 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4758 { 4759 struct lpfc_nodelist *ndlp; 4760 struct Scsi_Host *shost; 4761 struct lpfc_hba *phba; 4762 4763 if (!vport) 4764 return NULL; 4765 phba = vport->phba; 4766 if (!phba) 4767 return NULL; 4768 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4769 if (!ndlp) { 4770 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4771 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4772 if (!ndlp) 4773 return 0; 4774 /* Set the node type */ 4775 ndlp->nlp_type |= NLP_FABRIC; 4776 /* Put ndlp onto node list */ 4777 lpfc_enqueue_node(vport, ndlp); 4778 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4779 /* re-setup ndlp without removing from node list */ 4780 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4781 if (!ndlp) 4782 return 0; 4783 } 4784 if ((phba->pport->port_state < LPFC_FLOGI) && 4785 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4786 return NULL; 4787 /* If virtual link is not yet instantiated ignore CVL */ 4788 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4789 && (vport->port_state != LPFC_VPORT_FAILED)) 4790 return NULL; 4791 shost = lpfc_shost_from_vport(vport); 4792 if (!shost) 4793 return NULL; 4794 lpfc_linkdown_port(vport); 4795 lpfc_cleanup_pending_mbox(vport); 4796 spin_lock_irq(shost->host_lock); 4797 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4798 spin_unlock_irq(shost->host_lock); 4799 4800 return ndlp; 4801 } 4802 4803 /** 4804 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4805 * @vport: pointer to lpfc hba data structure. 4806 * 4807 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4808 * response to a FCF dead event. 4809 **/ 4810 static void 4811 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4812 { 4813 struct lpfc_vport **vports; 4814 int i; 4815 4816 vports = lpfc_create_vport_work_array(phba); 4817 if (vports) 4818 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4819 lpfc_sli4_perform_vport_cvl(vports[i]); 4820 lpfc_destroy_vport_work_array(phba, vports); 4821 } 4822 4823 /** 4824 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4825 * @phba: pointer to lpfc hba data structure. 4826 * @acqe_link: pointer to the async fcoe completion queue entry. 4827 * 4828 * This routine is to handle the SLI4 asynchronous fcoe event. 4829 **/ 4830 static void 4831 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4832 struct lpfc_acqe_fip *acqe_fip) 4833 { 4834 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4835 int rc; 4836 struct lpfc_vport *vport; 4837 struct lpfc_nodelist *ndlp; 4838 struct Scsi_Host *shost; 4839 int active_vlink_present; 4840 struct lpfc_vport **vports; 4841 int i; 4842 4843 phba->fc_eventTag = acqe_fip->event_tag; 4844 phba->fcoe_eventtag = acqe_fip->event_tag; 4845 switch (event_type) { 4846 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4847 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4848 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4849 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4850 LOG_DISCOVERY, 4851 "2546 New FCF event, evt_tag:x%x, " 4852 "index:x%x\n", 4853 acqe_fip->event_tag, 4854 acqe_fip->index); 4855 else 4856 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4857 LOG_DISCOVERY, 4858 "2788 FCF param modified event, " 4859 "evt_tag:x%x, index:x%x\n", 4860 acqe_fip->event_tag, 4861 acqe_fip->index); 4862 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4863 /* 4864 * During period of FCF discovery, read the FCF 4865 * table record indexed by the event to update 4866 * FCF roundrobin failover eligible FCF bmask. 4867 */ 4868 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4869 LOG_DISCOVERY, 4870 "2779 Read FCF (x%x) for updating " 4871 "roundrobin FCF failover bmask\n", 4872 acqe_fip->index); 4873 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4874 } 4875 4876 /* If the FCF discovery is in progress, do nothing. */ 4877 spin_lock_irq(&phba->hbalock); 4878 if (phba->hba_flag & FCF_TS_INPROG) { 4879 spin_unlock_irq(&phba->hbalock); 4880 break; 4881 } 4882 /* If fast FCF failover rescan event is pending, do nothing */ 4883 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4884 spin_unlock_irq(&phba->hbalock); 4885 break; 4886 } 4887 4888 /* If the FCF has been in discovered state, do nothing. */ 4889 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4890 spin_unlock_irq(&phba->hbalock); 4891 break; 4892 } 4893 spin_unlock_irq(&phba->hbalock); 4894 4895 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4896 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4897 "2770 Start FCF table scan per async FCF " 4898 "event, evt_tag:x%x, index:x%x\n", 4899 acqe_fip->event_tag, acqe_fip->index); 4900 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4901 LPFC_FCOE_FCF_GET_FIRST); 4902 if (rc) 4903 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4904 "2547 Issue FCF scan read FCF mailbox " 4905 "command failed (x%x)\n", rc); 4906 break; 4907 4908 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4910 "2548 FCF Table full count 0x%x tag 0x%x\n", 4911 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4912 acqe_fip->event_tag); 4913 break; 4914 4915 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4916 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4917 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4918 "2549 FCF (x%x) disconnected from network, " 4919 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4920 /* 4921 * If we are in the middle of FCF failover process, clear 4922 * the corresponding FCF bit in the roundrobin bitmap. 4923 */ 4924 spin_lock_irq(&phba->hbalock); 4925 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 4926 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 4927 spin_unlock_irq(&phba->hbalock); 4928 /* Update FLOGI FCF failover eligible FCF bmask */ 4929 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4930 break; 4931 } 4932 spin_unlock_irq(&phba->hbalock); 4933 4934 /* If the event is not for currently used fcf do nothing */ 4935 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4936 break; 4937 4938 /* 4939 * Otherwise, request the port to rediscover the entire FCF 4940 * table for a fast recovery from case that the current FCF 4941 * is no longer valid as we are not in the middle of FCF 4942 * failover process already. 4943 */ 4944 spin_lock_irq(&phba->hbalock); 4945 /* Mark the fast failover process in progress */ 4946 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4947 spin_unlock_irq(&phba->hbalock); 4948 4949 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4950 "2771 Start FCF fast failover process due to " 4951 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4952 "\n", acqe_fip->event_tag, acqe_fip->index); 4953 rc = lpfc_sli4_redisc_fcf_table(phba); 4954 if (rc) { 4955 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4956 LOG_DISCOVERY, 4957 "2772 Issue FCF rediscover mabilbox " 4958 "command failed, fail through to FCF " 4959 "dead event\n"); 4960 spin_lock_irq(&phba->hbalock); 4961 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4962 spin_unlock_irq(&phba->hbalock); 4963 /* 4964 * Last resort will fail over by treating this 4965 * as a link down to FCF registration. 4966 */ 4967 lpfc_sli4_fcf_dead_failthrough(phba); 4968 } else { 4969 /* Reset FCF roundrobin bmask for new discovery */ 4970 lpfc_sli4_clear_fcf_rr_bmask(phba); 4971 /* 4972 * Handling fast FCF failover to a DEAD FCF event is 4973 * considered equalivant to receiving CVL to all vports. 4974 */ 4975 lpfc_sli4_perform_all_vport_cvl(phba); 4976 } 4977 break; 4978 case LPFC_FIP_EVENT_TYPE_CVL: 4979 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4980 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4981 "2718 Clear Virtual Link Received for VPI 0x%x" 4982 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4983 4984 vport = lpfc_find_vport_by_vpid(phba, 4985 acqe_fip->index); 4986 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4987 if (!ndlp) 4988 break; 4989 active_vlink_present = 0; 4990 4991 vports = lpfc_create_vport_work_array(phba); 4992 if (vports) { 4993 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4994 i++) { 4995 if ((!(vports[i]->fc_flag & 4996 FC_VPORT_CVL_RCVD)) && 4997 (vports[i]->port_state > LPFC_FDISC)) { 4998 active_vlink_present = 1; 4999 break; 5000 } 5001 } 5002 lpfc_destroy_vport_work_array(phba, vports); 5003 } 5004 5005 /* 5006 * Don't re-instantiate if vport is marked for deletion. 5007 * If we are here first then vport_delete is going to wait 5008 * for discovery to complete. 5009 */ 5010 if (!(vport->load_flag & FC_UNLOADING) && 5011 active_vlink_present) { 5012 /* 5013 * If there are other active VLinks present, 5014 * re-instantiate the Vlink using FDISC. 5015 */ 5016 mod_timer(&ndlp->nlp_delayfunc, 5017 jiffies + msecs_to_jiffies(1000)); 5018 shost = lpfc_shost_from_vport(vport); 5019 spin_lock_irq(shost->host_lock); 5020 ndlp->nlp_flag |= NLP_DELAY_TMO; 5021 spin_unlock_irq(shost->host_lock); 5022 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5023 vport->port_state = LPFC_FDISC; 5024 } else { 5025 /* 5026 * Otherwise, we request port to rediscover 5027 * the entire FCF table for a fast recovery 5028 * from possible case that the current FCF 5029 * is no longer valid if we are not already 5030 * in the FCF failover process. 5031 */ 5032 spin_lock_irq(&phba->hbalock); 5033 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5034 spin_unlock_irq(&phba->hbalock); 5035 break; 5036 } 5037 /* Mark the fast failover process in progress */ 5038 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5039 spin_unlock_irq(&phba->hbalock); 5040 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5041 LOG_DISCOVERY, 5042 "2773 Start FCF failover per CVL, " 5043 "evt_tag:x%x\n", acqe_fip->event_tag); 5044 rc = lpfc_sli4_redisc_fcf_table(phba); 5045 if (rc) { 5046 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5047 LOG_DISCOVERY, 5048 "2774 Issue FCF rediscover " 5049 "mabilbox command failed, " 5050 "through to CVL event\n"); 5051 spin_lock_irq(&phba->hbalock); 5052 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5053 spin_unlock_irq(&phba->hbalock); 5054 /* 5055 * Last resort will be re-try on the 5056 * the current registered FCF entry. 5057 */ 5058 lpfc_retry_pport_discovery(phba); 5059 } else 5060 /* 5061 * Reset FCF roundrobin bmask for new 5062 * discovery. 5063 */ 5064 lpfc_sli4_clear_fcf_rr_bmask(phba); 5065 } 5066 break; 5067 default: 5068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5069 "0288 Unknown FCoE event type 0x%x event tag " 5070 "0x%x\n", event_type, acqe_fip->event_tag); 5071 break; 5072 } 5073 } 5074 5075 /** 5076 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5077 * @phba: pointer to lpfc hba data structure. 5078 * @acqe_link: pointer to the async dcbx completion queue entry. 5079 * 5080 * This routine is to handle the SLI4 asynchronous dcbx event. 5081 **/ 5082 static void 5083 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5084 struct lpfc_acqe_dcbx *acqe_dcbx) 5085 { 5086 phba->fc_eventTag = acqe_dcbx->event_tag; 5087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5088 "0290 The SLI4 DCBX asynchronous event is not " 5089 "handled yet\n"); 5090 } 5091 5092 /** 5093 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5094 * @phba: pointer to lpfc hba data structure. 5095 * @acqe_link: pointer to the async grp5 completion queue entry. 5096 * 5097 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5098 * is an asynchronous notified of a logical link speed change. The Port 5099 * reports the logical link speed in units of 10Mbps. 5100 **/ 5101 static void 5102 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5103 struct lpfc_acqe_grp5 *acqe_grp5) 5104 { 5105 uint16_t prev_ll_spd; 5106 5107 phba->fc_eventTag = acqe_grp5->event_tag; 5108 phba->fcoe_eventtag = acqe_grp5->event_tag; 5109 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5110 phba->sli4_hba.link_state.logical_speed = 5111 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5112 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5113 "2789 GRP5 Async Event: Updating logical link speed " 5114 "from %dMbps to %dMbps\n", prev_ll_spd, 5115 phba->sli4_hba.link_state.logical_speed); 5116 } 5117 5118 /** 5119 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5120 * @phba: pointer to lpfc hba data structure. 5121 * 5122 * This routine is invoked by the worker thread to process all the pending 5123 * SLI4 asynchronous events. 5124 **/ 5125 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5126 { 5127 struct lpfc_cq_event *cq_event; 5128 5129 /* First, declare the async event has been handled */ 5130 spin_lock_irq(&phba->hbalock); 5131 phba->hba_flag &= ~ASYNC_EVENT; 5132 spin_unlock_irq(&phba->hbalock); 5133 /* Now, handle all the async events */ 5134 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5135 /* Get the first event from the head of the event queue */ 5136 spin_lock_irq(&phba->hbalock); 5137 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5138 cq_event, struct lpfc_cq_event, list); 5139 spin_unlock_irq(&phba->hbalock); 5140 /* Process the asynchronous event */ 5141 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5142 case LPFC_TRAILER_CODE_LINK: 5143 lpfc_sli4_async_link_evt(phba, 5144 &cq_event->cqe.acqe_link); 5145 break; 5146 case LPFC_TRAILER_CODE_FCOE: 5147 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5148 break; 5149 case LPFC_TRAILER_CODE_DCBX: 5150 lpfc_sli4_async_dcbx_evt(phba, 5151 &cq_event->cqe.acqe_dcbx); 5152 break; 5153 case LPFC_TRAILER_CODE_GRP5: 5154 lpfc_sli4_async_grp5_evt(phba, 5155 &cq_event->cqe.acqe_grp5); 5156 break; 5157 case LPFC_TRAILER_CODE_FC: 5158 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5159 break; 5160 case LPFC_TRAILER_CODE_SLI: 5161 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5162 break; 5163 default: 5164 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5165 "1804 Invalid asynchrous event code: " 5166 "x%x\n", bf_get(lpfc_trailer_code, 5167 &cq_event->cqe.mcqe_cmpl)); 5168 break; 5169 } 5170 /* Free the completion event processed to the free pool */ 5171 lpfc_sli4_cq_event_release(phba, cq_event); 5172 } 5173 } 5174 5175 /** 5176 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5177 * @phba: pointer to lpfc hba data structure. 5178 * 5179 * This routine is invoked by the worker thread to process FCF table 5180 * rediscovery pending completion event. 5181 **/ 5182 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5183 { 5184 int rc; 5185 5186 spin_lock_irq(&phba->hbalock); 5187 /* Clear FCF rediscovery timeout event */ 5188 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5189 /* Clear driver fast failover FCF record flag */ 5190 phba->fcf.failover_rec.flag = 0; 5191 /* Set state for FCF fast failover */ 5192 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5193 spin_unlock_irq(&phba->hbalock); 5194 5195 /* Scan FCF table from the first entry to re-discover SAN */ 5196 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5197 "2777 Start post-quiescent FCF table scan\n"); 5198 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5199 if (rc) 5200 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5201 "2747 Issue FCF scan read FCF mailbox " 5202 "command failed 0x%x\n", rc); 5203 } 5204 5205 /** 5206 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5207 * @phba: pointer to lpfc hba data structure. 5208 * @dev_grp: The HBA PCI-Device group number. 5209 * 5210 * This routine is invoked to set up the per HBA PCI-Device group function 5211 * API jump table entries. 5212 * 5213 * Return: 0 if success, otherwise -ENODEV 5214 **/ 5215 int 5216 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5217 { 5218 int rc; 5219 5220 /* Set up lpfc PCI-device group */ 5221 phba->pci_dev_grp = dev_grp; 5222 5223 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5224 if (dev_grp == LPFC_PCI_DEV_OC) 5225 phba->sli_rev = LPFC_SLI_REV4; 5226 5227 /* Set up device INIT API function jump table */ 5228 rc = lpfc_init_api_table_setup(phba, dev_grp); 5229 if (rc) 5230 return -ENODEV; 5231 /* Set up SCSI API function jump table */ 5232 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5233 if (rc) 5234 return -ENODEV; 5235 /* Set up SLI API function jump table */ 5236 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5237 if (rc) 5238 return -ENODEV; 5239 /* Set up MBOX API function jump table */ 5240 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5241 if (rc) 5242 return -ENODEV; 5243 5244 return 0; 5245 } 5246 5247 /** 5248 * lpfc_log_intr_mode - Log the active interrupt mode 5249 * @phba: pointer to lpfc hba data structure. 5250 * @intr_mode: active interrupt mode adopted. 5251 * 5252 * This routine it invoked to log the currently used active interrupt mode 5253 * to the device. 5254 **/ 5255 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5256 { 5257 switch (intr_mode) { 5258 case 0: 5259 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5260 "0470 Enable INTx interrupt mode.\n"); 5261 break; 5262 case 1: 5263 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5264 "0481 Enabled MSI interrupt mode.\n"); 5265 break; 5266 case 2: 5267 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5268 "0480 Enabled MSI-X interrupt mode.\n"); 5269 break; 5270 default: 5271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5272 "0482 Illegal interrupt mode.\n"); 5273 break; 5274 } 5275 return; 5276 } 5277 5278 /** 5279 * lpfc_enable_pci_dev - Enable a generic PCI device. 5280 * @phba: pointer to lpfc hba data structure. 5281 * 5282 * This routine is invoked to enable the PCI device that is common to all 5283 * PCI devices. 5284 * 5285 * Return codes 5286 * 0 - successful 5287 * other values - error 5288 **/ 5289 static int 5290 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5291 { 5292 struct pci_dev *pdev; 5293 5294 /* Obtain PCI device reference */ 5295 if (!phba->pcidev) 5296 goto out_error; 5297 else 5298 pdev = phba->pcidev; 5299 /* Enable PCI device */ 5300 if (pci_enable_device_mem(pdev)) 5301 goto out_error; 5302 /* Request PCI resource for the device */ 5303 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5304 goto out_disable_device; 5305 /* Set up device as PCI master and save state for EEH */ 5306 pci_set_master(pdev); 5307 pci_try_set_mwi(pdev); 5308 pci_save_state(pdev); 5309 5310 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5311 if (pci_is_pcie(pdev)) 5312 pdev->needs_freset = 1; 5313 5314 return 0; 5315 5316 out_disable_device: 5317 pci_disable_device(pdev); 5318 out_error: 5319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5320 "1401 Failed to enable pci device\n"); 5321 return -ENODEV; 5322 } 5323 5324 /** 5325 * lpfc_disable_pci_dev - Disable a generic PCI device. 5326 * @phba: pointer to lpfc hba data structure. 5327 * 5328 * This routine is invoked to disable the PCI device that is common to all 5329 * PCI devices. 5330 **/ 5331 static void 5332 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5333 { 5334 struct pci_dev *pdev; 5335 5336 /* Obtain PCI device reference */ 5337 if (!phba->pcidev) 5338 return; 5339 else 5340 pdev = phba->pcidev; 5341 /* Release PCI resource and disable PCI device */ 5342 pci_release_mem_regions(pdev); 5343 pci_disable_device(pdev); 5344 5345 return; 5346 } 5347 5348 /** 5349 * lpfc_reset_hba - Reset a hba 5350 * @phba: pointer to lpfc hba data structure. 5351 * 5352 * This routine is invoked to reset a hba device. It brings the HBA 5353 * offline, performs a board restart, and then brings the board back 5354 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5355 * on outstanding mailbox commands. 5356 **/ 5357 void 5358 lpfc_reset_hba(struct lpfc_hba *phba) 5359 { 5360 /* If resets are disabled then set error state and return. */ 5361 if (!phba->cfg_enable_hba_reset) { 5362 phba->link_state = LPFC_HBA_ERROR; 5363 return; 5364 } 5365 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5366 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5367 else 5368 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5369 lpfc_offline(phba); 5370 lpfc_sli_brdrestart(phba); 5371 lpfc_online(phba); 5372 lpfc_unblock_mgmt_io(phba); 5373 } 5374 5375 /** 5376 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5377 * @phba: pointer to lpfc hba data structure. 5378 * 5379 * This function enables the PCI SR-IOV virtual functions to a physical 5380 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5381 * enable the number of virtual functions to the physical function. As 5382 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5383 * API call does not considered as an error condition for most of the device. 5384 **/ 5385 uint16_t 5386 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5387 { 5388 struct pci_dev *pdev = phba->pcidev; 5389 uint16_t nr_virtfn; 5390 int pos; 5391 5392 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5393 if (pos == 0) 5394 return 0; 5395 5396 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5397 return nr_virtfn; 5398 } 5399 5400 /** 5401 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5402 * @phba: pointer to lpfc hba data structure. 5403 * @nr_vfn: number of virtual functions to be enabled. 5404 * 5405 * This function enables the PCI SR-IOV virtual functions to a physical 5406 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5407 * enable the number of virtual functions to the physical function. As 5408 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5409 * API call does not considered as an error condition for most of the device. 5410 **/ 5411 int 5412 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5413 { 5414 struct pci_dev *pdev = phba->pcidev; 5415 uint16_t max_nr_vfn; 5416 int rc; 5417 5418 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5419 if (nr_vfn > max_nr_vfn) { 5420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5421 "3057 Requested vfs (%d) greater than " 5422 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5423 return -EINVAL; 5424 } 5425 5426 rc = pci_enable_sriov(pdev, nr_vfn); 5427 if (rc) { 5428 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5429 "2806 Failed to enable sriov on this device " 5430 "with vfn number nr_vf:%d, rc:%d\n", 5431 nr_vfn, rc); 5432 } else 5433 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5434 "2807 Successful enable sriov on this device " 5435 "with vfn number nr_vf:%d\n", nr_vfn); 5436 return rc; 5437 } 5438 5439 /** 5440 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5441 * @phba: pointer to lpfc hba data structure. 5442 * 5443 * This routine is invoked to set up the driver internal resources before the 5444 * device specific resource setup to support the HBA device it attached to. 5445 * 5446 * Return codes 5447 * 0 - successful 5448 * other values - error 5449 **/ 5450 static int 5451 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5452 { 5453 struct lpfc_sli *psli = &phba->sli; 5454 5455 /* 5456 * Driver resources common to all SLI revisions 5457 */ 5458 atomic_set(&phba->fast_event_count, 0); 5459 spin_lock_init(&phba->hbalock); 5460 5461 /* Initialize ndlp management spinlock */ 5462 spin_lock_init(&phba->ndlp_lock); 5463 5464 INIT_LIST_HEAD(&phba->port_list); 5465 INIT_LIST_HEAD(&phba->work_list); 5466 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5467 5468 /* Initialize the wait queue head for the kernel thread */ 5469 init_waitqueue_head(&phba->work_waitq); 5470 5471 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5472 "1403 Protocols supported %s %s %s\n", 5473 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5474 "SCSI" : " "), 5475 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5476 "NVME" : " "), 5477 (phba->nvmet_support ? "NVMET" : " ")); 5478 5479 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5480 /* Initialize the scsi buffer list used by driver for scsi IO */ 5481 spin_lock_init(&phba->scsi_buf_list_get_lock); 5482 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5483 spin_lock_init(&phba->scsi_buf_list_put_lock); 5484 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5485 } 5486 5487 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5488 (phba->nvmet_support == 0)) { 5489 /* Initialize the NVME buffer list used by driver for NVME IO */ 5490 spin_lock_init(&phba->nvme_buf_list_get_lock); 5491 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5492 spin_lock_init(&phba->nvme_buf_list_put_lock); 5493 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5494 } 5495 5496 /* Initialize the fabric iocb list */ 5497 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5498 5499 /* Initialize list to save ELS buffers */ 5500 INIT_LIST_HEAD(&phba->elsbuf); 5501 5502 /* Initialize FCF connection rec list */ 5503 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5504 5505 /* Initialize OAS configuration list */ 5506 spin_lock_init(&phba->devicelock); 5507 INIT_LIST_HEAD(&phba->luns); 5508 5509 /* MBOX heartbeat timer */ 5510 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); 5511 /* Fabric block timer */ 5512 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 5513 (unsigned long)phba); 5514 /* EA polling mode timer */ 5515 setup_timer(&phba->eratt_poll, lpfc_poll_eratt, 5516 (unsigned long)phba); 5517 /* Heartbeat timer */ 5518 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); 5519 5520 return 0; 5521 } 5522 5523 /** 5524 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5525 * @phba: pointer to lpfc hba data structure. 5526 * 5527 * This routine is invoked to set up the driver internal resources specific to 5528 * support the SLI-3 HBA device it attached to. 5529 * 5530 * Return codes 5531 * 0 - successful 5532 * other values - error 5533 **/ 5534 static int 5535 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5536 { 5537 int rc; 5538 5539 /* 5540 * Initialize timers used by driver 5541 */ 5542 5543 /* FCP polling mode timer */ 5544 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, 5545 (unsigned long)phba); 5546 5547 /* Host attention work mask setup */ 5548 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5549 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5550 5551 /* Get all the module params for configuring this host */ 5552 lpfc_get_cfgparam(phba); 5553 /* Set up phase-1 common device driver resources */ 5554 5555 rc = lpfc_setup_driver_resource_phase1(phba); 5556 if (rc) 5557 return -ENODEV; 5558 5559 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5560 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5561 /* check for menlo minimum sg count */ 5562 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5563 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5564 } 5565 5566 if (!phba->sli.sli3_ring) 5567 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5568 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5569 if (!phba->sli.sli3_ring) 5570 return -ENOMEM; 5571 5572 /* 5573 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5574 * used to create the sg_dma_buf_pool must be dynamically calculated. 5575 */ 5576 5577 /* Initialize the host templates the configured values. */ 5578 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5579 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5580 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5581 5582 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5583 if (phba->cfg_enable_bg) { 5584 /* 5585 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5586 * the FCP rsp, and a BDE for each. Sice we have no control 5587 * over how many protection data segments the SCSI Layer 5588 * will hand us (ie: there could be one for every block 5589 * in the IO), we just allocate enough BDEs to accomidate 5590 * our max amount and we need to limit lpfc_sg_seg_cnt to 5591 * minimize the risk of running out. 5592 */ 5593 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5594 sizeof(struct fcp_rsp) + 5595 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5596 5597 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5598 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5599 5600 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5601 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5602 } else { 5603 /* 5604 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5605 * the FCP rsp, a BDE for each, and a BDE for up to 5606 * cfg_sg_seg_cnt data segments. 5607 */ 5608 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5609 sizeof(struct fcp_rsp) + 5610 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5611 5612 /* Total BDEs in BPL for scsi_sg_list */ 5613 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5614 } 5615 5616 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5617 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5618 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5619 phba->cfg_total_seg_cnt); 5620 5621 phba->max_vpi = LPFC_MAX_VPI; 5622 /* This will be set to correct value after config_port mbox */ 5623 phba->max_vports = 0; 5624 5625 /* 5626 * Initialize the SLI Layer to run with lpfc HBAs. 5627 */ 5628 lpfc_sli_setup(phba); 5629 lpfc_sli_queue_init(phba); 5630 5631 /* Allocate device driver memory */ 5632 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5633 return -ENOMEM; 5634 5635 /* 5636 * Enable sr-iov virtual functions if supported and configured 5637 * through the module parameter. 5638 */ 5639 if (phba->cfg_sriov_nr_virtfn > 0) { 5640 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5641 phba->cfg_sriov_nr_virtfn); 5642 if (rc) { 5643 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5644 "2808 Requested number of SR-IOV " 5645 "virtual functions (%d) is not " 5646 "supported\n", 5647 phba->cfg_sriov_nr_virtfn); 5648 phba->cfg_sriov_nr_virtfn = 0; 5649 } 5650 } 5651 5652 return 0; 5653 } 5654 5655 /** 5656 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5657 * @phba: pointer to lpfc hba data structure. 5658 * 5659 * This routine is invoked to unset the driver internal resources set up 5660 * specific for supporting the SLI-3 HBA device it attached to. 5661 **/ 5662 static void 5663 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5664 { 5665 /* Free device driver memory allocated */ 5666 lpfc_mem_free_all(phba); 5667 5668 return; 5669 } 5670 5671 /** 5672 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5673 * @phba: pointer to lpfc hba data structure. 5674 * 5675 * This routine is invoked to set up the driver internal resources specific to 5676 * support the SLI-4 HBA device it attached to. 5677 * 5678 * Return codes 5679 * 0 - successful 5680 * other values - error 5681 **/ 5682 static int 5683 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5684 { 5685 LPFC_MBOXQ_t *mboxq; 5686 MAILBOX_t *mb; 5687 int rc, i, max_buf_size; 5688 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5689 struct lpfc_mqe *mqe; 5690 int longs; 5691 int fof_vectors = 0; 5692 uint64_t wwn; 5693 5694 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5695 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5696 phba->sli4_hba.curr_disp_cpu = 0; 5697 5698 /* Get all the module params for configuring this host */ 5699 lpfc_get_cfgparam(phba); 5700 5701 /* Set up phase-1 common device driver resources */ 5702 rc = lpfc_setup_driver_resource_phase1(phba); 5703 if (rc) 5704 return -ENODEV; 5705 5706 /* Before proceed, wait for POST done and device ready */ 5707 rc = lpfc_sli4_post_status_check(phba); 5708 if (rc) 5709 return -ENODEV; 5710 5711 /* 5712 * Initialize timers used by driver 5713 */ 5714 5715 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); 5716 5717 /* FCF rediscover timer */ 5718 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 5719 (unsigned long)phba); 5720 5721 /* 5722 * Control structure for handling external multi-buffer mailbox 5723 * command pass-through. 5724 */ 5725 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5726 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5727 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5728 5729 phba->max_vpi = LPFC_MAX_VPI; 5730 5731 /* This will be set to correct value after the read_config mbox */ 5732 phba->max_vports = 0; 5733 5734 /* Program the default value of vlan_id and fc_map */ 5735 phba->valid_vlan = 0; 5736 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5737 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5738 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5739 5740 /* 5741 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5742 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5743 * The WQ create will allocate the ring. 5744 */ 5745 5746 /* 5747 * It doesn't matter what family our adapter is in, we are 5748 * limited to 2 Pages, 512 SGEs, for our SGL. 5749 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5750 */ 5751 max_buf_size = (2 * SLI4_PAGE_SIZE); 5752 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5753 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5754 5755 /* 5756 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5757 * used to create the sg_dma_buf_pool must be calculated. 5758 */ 5759 if (phba->cfg_enable_bg) { 5760 /* 5761 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5762 * the FCP rsp, and a SGE. Sice we have no control 5763 * over how many protection segments the SCSI Layer 5764 * will hand us (ie: there could be one for every block 5765 * in the IO), just allocate enough SGEs to accomidate 5766 * our max amount and we need to limit lpfc_sg_seg_cnt 5767 * to minimize the risk of running out. 5768 */ 5769 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5770 sizeof(struct fcp_rsp) + max_buf_size; 5771 5772 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5773 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5774 5775 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5776 phba->cfg_sg_seg_cnt = 5777 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5778 } else { 5779 /* 5780 * The scsi_buf for a regular I/O holds the FCP cmnd, 5781 * the FCP rsp, a SGE for each, and a SGE for up to 5782 * cfg_sg_seg_cnt data segments. 5783 */ 5784 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5785 sizeof(struct fcp_rsp) + 5786 ((phba->cfg_sg_seg_cnt + 2) * 5787 sizeof(struct sli4_sge)); 5788 5789 /* Total SGEs for scsi_sg_list */ 5790 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5791 5792 /* 5793 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5794 * need to post 1 page for the SGL. 5795 */ 5796 } 5797 5798 /* Initialize the host templates with the updated values. */ 5799 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5800 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5801 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5802 5803 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5804 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5805 else 5806 phba->cfg_sg_dma_buf_size = 5807 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5808 5809 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5810 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5811 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5812 phba->cfg_total_seg_cnt); 5813 5814 /* Initialize buffer queue management fields */ 5815 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5816 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5817 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5818 5819 /* 5820 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5821 */ 5822 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5823 /* Initialize the Abort scsi buffer list used by driver */ 5824 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5825 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5826 } 5827 5828 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5829 /* Initialize the Abort nvme buffer list used by driver */ 5830 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5831 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5832 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5833 /* Fast-path XRI aborted CQ Event work queue list */ 5834 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5835 } 5836 5837 /* This abort list used by worker thread */ 5838 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5839 spin_lock_init(&phba->sli4_hba.nvmet_io_lock); 5840 5841 /* 5842 * Initialize driver internal slow-path work queues 5843 */ 5844 5845 /* Driver internel slow-path CQ Event pool */ 5846 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5847 /* Response IOCB work queue list */ 5848 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5849 /* Asynchronous event CQ Event work queue list */ 5850 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5851 /* Fast-path XRI aborted CQ Event work queue list */ 5852 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5853 /* Slow-path XRI aborted CQ Event work queue list */ 5854 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5855 /* Receive queue CQ Event work queue list */ 5856 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5857 5858 /* Initialize extent block lists. */ 5859 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5860 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5861 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5862 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5863 5864 /* Initialize mboxq lists. If the early init routines fail 5865 * these lists need to be correctly initialized. 5866 */ 5867 INIT_LIST_HEAD(&phba->sli.mboxq); 5868 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5869 5870 /* initialize optic_state to 0xFF */ 5871 phba->sli4_hba.lnk_info.optic_state = 0xff; 5872 5873 /* Allocate device driver memory */ 5874 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5875 if (rc) 5876 return -ENOMEM; 5877 5878 /* IF Type 2 ports get initialized now. */ 5879 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5880 LPFC_SLI_INTF_IF_TYPE_2) { 5881 rc = lpfc_pci_function_reset(phba); 5882 if (unlikely(rc)) { 5883 rc = -ENODEV; 5884 goto out_free_mem; 5885 } 5886 phba->temp_sensor_support = 1; 5887 } 5888 5889 /* Create the bootstrap mailbox command */ 5890 rc = lpfc_create_bootstrap_mbox(phba); 5891 if (unlikely(rc)) 5892 goto out_free_mem; 5893 5894 /* Set up the host's endian order with the device. */ 5895 rc = lpfc_setup_endian_order(phba); 5896 if (unlikely(rc)) 5897 goto out_free_bsmbx; 5898 5899 /* Set up the hba's configuration parameters. */ 5900 rc = lpfc_sli4_read_config(phba); 5901 if (unlikely(rc)) 5902 goto out_free_bsmbx; 5903 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 5904 if (unlikely(rc)) 5905 goto out_free_bsmbx; 5906 5907 /* IF Type 0 ports get initialized now. */ 5908 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5909 LPFC_SLI_INTF_IF_TYPE_0) { 5910 rc = lpfc_pci_function_reset(phba); 5911 if (unlikely(rc)) 5912 goto out_free_bsmbx; 5913 } 5914 5915 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5916 GFP_KERNEL); 5917 if (!mboxq) { 5918 rc = -ENOMEM; 5919 goto out_free_bsmbx; 5920 } 5921 5922 /* Check for NVMET being configured */ 5923 phba->nvmet_support = 0; 5924 if (lpfc_enable_nvmet_cnt) { 5925 5926 /* First get WWN of HBA instance */ 5927 lpfc_read_nv(phba, mboxq); 5928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5929 if (rc != MBX_SUCCESS) { 5930 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5931 "6016 Mailbox failed , mbxCmd x%x " 5932 "READ_NV, mbxStatus x%x\n", 5933 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 5934 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 5935 mempool_free(mboxq, phba->mbox_mem_pool); 5936 rc = -EIO; 5937 goto out_free_bsmbx; 5938 } 5939 mb = &mboxq->u.mb; 5940 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 5941 sizeof(uint64_t)); 5942 wwn = cpu_to_be64(wwn); 5943 phba->sli4_hba.wwnn.u.name = wwn; 5944 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 5945 sizeof(uint64_t)); 5946 /* wwn is WWPN of HBA instance */ 5947 wwn = cpu_to_be64(wwn); 5948 phba->sli4_hba.wwpn.u.name = wwn; 5949 5950 /* Check to see if it matches any module parameter */ 5951 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 5952 if (wwn == lpfc_enable_nvmet[i]) { 5953 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 5954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5955 "6017 NVME Target %016llx\n", 5956 wwn); 5957 phba->nvmet_support = 1; /* a match */ 5958 #else 5959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5960 "6021 Can't enable NVME Target." 5961 " NVME_TARGET_FC infrastructure" 5962 " is not in kernel\n"); 5963 #endif 5964 } 5965 } 5966 } 5967 5968 lpfc_nvme_mod_param_dep(phba); 5969 5970 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5971 lpfc_supported_pages(mboxq); 5972 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5973 if (!rc) { 5974 mqe = &mboxq->u.mqe; 5975 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5976 LPFC_MAX_SUPPORTED_PAGES); 5977 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5978 switch (pn_page[i]) { 5979 case LPFC_SLI4_PARAMETERS: 5980 phba->sli4_hba.pc_sli4_params.supported = 1; 5981 break; 5982 default: 5983 break; 5984 } 5985 } 5986 /* Read the port's SLI4 Parameters capabilities if supported. */ 5987 if (phba->sli4_hba.pc_sli4_params.supported) 5988 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5989 if (rc) { 5990 mempool_free(mboxq, phba->mbox_mem_pool); 5991 rc = -EIO; 5992 goto out_free_bsmbx; 5993 } 5994 } 5995 5996 /* 5997 * Get sli4 parameters that override parameters from Port capabilities. 5998 * If this call fails, it isn't critical unless the SLI4 parameters come 5999 * back in conflict. 6000 */ 6001 rc = lpfc_get_sli4_parameters(phba, mboxq); 6002 if (rc) { 6003 if (phba->sli4_hba.extents_in_use && 6004 phba->sli4_hba.rpi_hdrs_in_use) { 6005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6006 "2999 Unsupported SLI4 Parameters " 6007 "Extents and RPI headers enabled.\n"); 6008 } 6009 mempool_free(mboxq, phba->mbox_mem_pool); 6010 goto out_free_bsmbx; 6011 } 6012 6013 mempool_free(mboxq, phba->mbox_mem_pool); 6014 6015 /* Verify OAS is supported */ 6016 lpfc_sli4_oas_verify(phba); 6017 if (phba->cfg_fof) 6018 fof_vectors = 1; 6019 6020 /* Verify all the SLI4 queues */ 6021 rc = lpfc_sli4_queue_verify(phba); 6022 if (rc) 6023 goto out_free_bsmbx; 6024 6025 /* Create driver internal CQE event pool */ 6026 rc = lpfc_sli4_cq_event_pool_create(phba); 6027 if (rc) 6028 goto out_free_bsmbx; 6029 6030 /* Initialize sgl lists per host */ 6031 lpfc_init_sgl_list(phba); 6032 6033 /* Allocate and initialize active sgl array */ 6034 rc = lpfc_init_active_sgl_array(phba); 6035 if (rc) { 6036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6037 "1430 Failed to initialize sgl list.\n"); 6038 goto out_destroy_cq_event_pool; 6039 } 6040 rc = lpfc_sli4_init_rpi_hdrs(phba); 6041 if (rc) { 6042 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6043 "1432 Failed to initialize rpi headers.\n"); 6044 goto out_free_active_sgl; 6045 } 6046 6047 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6048 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6049 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6050 GFP_KERNEL); 6051 if (!phba->fcf.fcf_rr_bmask) { 6052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6053 "2759 Failed allocate memory for FCF round " 6054 "robin failover bmask\n"); 6055 rc = -ENOMEM; 6056 goto out_remove_rpi_hdrs; 6057 } 6058 6059 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6060 sizeof(struct lpfc_hba_eq_hdl), 6061 GFP_KERNEL); 6062 if (!phba->sli4_hba.hba_eq_hdl) { 6063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6064 "2572 Failed allocate memory for " 6065 "fast-path per-EQ handle array\n"); 6066 rc = -ENOMEM; 6067 goto out_free_fcf_rr_bmask; 6068 } 6069 6070 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6071 sizeof(struct lpfc_vector_map_info), 6072 GFP_KERNEL); 6073 if (!phba->sli4_hba.cpu_map) { 6074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6075 "3327 Failed allocate memory for msi-x " 6076 "interrupt vector mapping\n"); 6077 rc = -ENOMEM; 6078 goto out_free_hba_eq_hdl; 6079 } 6080 if (lpfc_used_cpu == NULL) { 6081 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6082 GFP_KERNEL); 6083 if (!lpfc_used_cpu) { 6084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6085 "3335 Failed allocate memory for msi-x " 6086 "interrupt vector mapping\n"); 6087 kfree(phba->sli4_hba.cpu_map); 6088 rc = -ENOMEM; 6089 goto out_free_hba_eq_hdl; 6090 } 6091 for (i = 0; i < lpfc_present_cpu; i++) 6092 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6093 } 6094 6095 /* 6096 * Enable sr-iov virtual functions if supported and configured 6097 * through the module parameter. 6098 */ 6099 if (phba->cfg_sriov_nr_virtfn > 0) { 6100 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6101 phba->cfg_sriov_nr_virtfn); 6102 if (rc) { 6103 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6104 "3020 Requested number of SR-IOV " 6105 "virtual functions (%d) is not " 6106 "supported\n", 6107 phba->cfg_sriov_nr_virtfn); 6108 phba->cfg_sriov_nr_virtfn = 0; 6109 } 6110 } 6111 6112 return 0; 6113 6114 out_free_hba_eq_hdl: 6115 kfree(phba->sli4_hba.hba_eq_hdl); 6116 out_free_fcf_rr_bmask: 6117 kfree(phba->fcf.fcf_rr_bmask); 6118 out_remove_rpi_hdrs: 6119 lpfc_sli4_remove_rpi_hdrs(phba); 6120 out_free_active_sgl: 6121 lpfc_free_active_sgl(phba); 6122 out_destroy_cq_event_pool: 6123 lpfc_sli4_cq_event_pool_destroy(phba); 6124 out_free_bsmbx: 6125 lpfc_destroy_bootstrap_mbox(phba); 6126 out_free_mem: 6127 lpfc_mem_free(phba); 6128 return rc; 6129 } 6130 6131 /** 6132 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6133 * @phba: pointer to lpfc hba data structure. 6134 * 6135 * This routine is invoked to unset the driver internal resources set up 6136 * specific for supporting the SLI-4 HBA device it attached to. 6137 **/ 6138 static void 6139 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6140 { 6141 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6142 6143 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6144 kfree(phba->sli4_hba.cpu_map); 6145 phba->sli4_hba.num_present_cpu = 0; 6146 phba->sli4_hba.num_online_cpu = 0; 6147 phba->sli4_hba.curr_disp_cpu = 0; 6148 6149 /* Free memory allocated for fast-path work queue handles */ 6150 kfree(phba->sli4_hba.hba_eq_hdl); 6151 6152 /* Free the allocated rpi headers. */ 6153 lpfc_sli4_remove_rpi_hdrs(phba); 6154 lpfc_sli4_remove_rpis(phba); 6155 6156 /* Free eligible FCF index bmask */ 6157 kfree(phba->fcf.fcf_rr_bmask); 6158 6159 /* Free the ELS sgl list */ 6160 lpfc_free_active_sgl(phba); 6161 lpfc_free_els_sgl_list(phba); 6162 lpfc_free_nvmet_sgl_list(phba); 6163 6164 /* Free the completion queue EQ event pool */ 6165 lpfc_sli4_cq_event_release_all(phba); 6166 lpfc_sli4_cq_event_pool_destroy(phba); 6167 6168 /* Release resource identifiers. */ 6169 lpfc_sli4_dealloc_resource_identifiers(phba); 6170 6171 /* Free the bsmbx region. */ 6172 lpfc_destroy_bootstrap_mbox(phba); 6173 6174 /* Free the SLI Layer memory with SLI4 HBAs */ 6175 lpfc_mem_free_all(phba); 6176 6177 /* Free the current connect table */ 6178 list_for_each_entry_safe(conn_entry, next_conn_entry, 6179 &phba->fcf_conn_rec_list, list) { 6180 list_del_init(&conn_entry->list); 6181 kfree(conn_entry); 6182 } 6183 6184 return; 6185 } 6186 6187 /** 6188 * lpfc_init_api_table_setup - Set up init api function jump table 6189 * @phba: The hba struct for which this call is being executed. 6190 * @dev_grp: The HBA PCI-Device group number. 6191 * 6192 * This routine sets up the device INIT interface API function jump table 6193 * in @phba struct. 6194 * 6195 * Returns: 0 - success, -ENODEV - failure. 6196 **/ 6197 int 6198 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6199 { 6200 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6201 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6202 phba->lpfc_selective_reset = lpfc_selective_reset; 6203 switch (dev_grp) { 6204 case LPFC_PCI_DEV_LP: 6205 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6206 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6207 phba->lpfc_stop_port = lpfc_stop_port_s3; 6208 break; 6209 case LPFC_PCI_DEV_OC: 6210 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6211 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6212 phba->lpfc_stop_port = lpfc_stop_port_s4; 6213 break; 6214 default: 6215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6216 "1431 Invalid HBA PCI-device group: 0x%x\n", 6217 dev_grp); 6218 return -ENODEV; 6219 break; 6220 } 6221 return 0; 6222 } 6223 6224 /** 6225 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6226 * @phba: pointer to lpfc hba data structure. 6227 * 6228 * This routine is invoked to set up the driver internal resources after the 6229 * device specific resource setup to support the HBA device it attached to. 6230 * 6231 * Return codes 6232 * 0 - successful 6233 * other values - error 6234 **/ 6235 static int 6236 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6237 { 6238 int error; 6239 6240 /* Startup the kernel thread for this host adapter. */ 6241 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6242 "lpfc_worker_%d", phba->brd_no); 6243 if (IS_ERR(phba->worker_thread)) { 6244 error = PTR_ERR(phba->worker_thread); 6245 return error; 6246 } 6247 6248 return 0; 6249 } 6250 6251 /** 6252 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6253 * @phba: pointer to lpfc hba data structure. 6254 * 6255 * This routine is invoked to unset the driver internal resources set up after 6256 * the device specific resource setup for supporting the HBA device it 6257 * attached to. 6258 **/ 6259 static void 6260 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6261 { 6262 /* Stop kernel worker thread */ 6263 kthread_stop(phba->worker_thread); 6264 } 6265 6266 /** 6267 * lpfc_free_iocb_list - Free iocb list. 6268 * @phba: pointer to lpfc hba data structure. 6269 * 6270 * This routine is invoked to free the driver's IOCB list and memory. 6271 **/ 6272 static void 6273 lpfc_free_iocb_list(struct lpfc_hba *phba) 6274 { 6275 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6276 6277 spin_lock_irq(&phba->hbalock); 6278 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6279 &phba->lpfc_iocb_list, list) { 6280 list_del(&iocbq_entry->list); 6281 kfree(iocbq_entry); 6282 phba->total_iocbq_bufs--; 6283 } 6284 spin_unlock_irq(&phba->hbalock); 6285 6286 return; 6287 } 6288 6289 /** 6290 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6291 * @phba: pointer to lpfc hba data structure. 6292 * 6293 * This routine is invoked to allocate and initizlize the driver's IOCB 6294 * list and set up the IOCB tag array accordingly. 6295 * 6296 * Return codes 6297 * 0 - successful 6298 * other values - error 6299 **/ 6300 static int 6301 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6302 { 6303 struct lpfc_iocbq *iocbq_entry = NULL; 6304 uint16_t iotag; 6305 int i; 6306 6307 /* Initialize and populate the iocb list per host. */ 6308 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6309 for (i = 0; i < iocb_count; i++) { 6310 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6311 if (iocbq_entry == NULL) { 6312 printk(KERN_ERR "%s: only allocated %d iocbs of " 6313 "expected %d count. Unloading driver.\n", 6314 __func__, i, LPFC_IOCB_LIST_CNT); 6315 goto out_free_iocbq; 6316 } 6317 6318 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6319 if (iotag == 0) { 6320 kfree(iocbq_entry); 6321 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6322 "Unloading driver.\n", __func__); 6323 goto out_free_iocbq; 6324 } 6325 iocbq_entry->sli4_lxritag = NO_XRI; 6326 iocbq_entry->sli4_xritag = NO_XRI; 6327 6328 spin_lock_irq(&phba->hbalock); 6329 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6330 phba->total_iocbq_bufs++; 6331 spin_unlock_irq(&phba->hbalock); 6332 } 6333 6334 return 0; 6335 6336 out_free_iocbq: 6337 lpfc_free_iocb_list(phba); 6338 6339 return -ENOMEM; 6340 } 6341 6342 /** 6343 * lpfc_free_sgl_list - Free a given sgl list. 6344 * @phba: pointer to lpfc hba data structure. 6345 * @sglq_list: pointer to the head of sgl list. 6346 * 6347 * This routine is invoked to free a give sgl list and memory. 6348 **/ 6349 void 6350 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6351 { 6352 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6353 6354 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6355 list_del(&sglq_entry->list); 6356 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6357 kfree(sglq_entry); 6358 } 6359 } 6360 6361 /** 6362 * lpfc_free_els_sgl_list - Free els sgl list. 6363 * @phba: pointer to lpfc hba data structure. 6364 * 6365 * This routine is invoked to free the driver's els sgl list and memory. 6366 **/ 6367 static void 6368 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6369 { 6370 LIST_HEAD(sglq_list); 6371 6372 /* Retrieve all els sgls from driver list */ 6373 spin_lock_irq(&phba->hbalock); 6374 spin_lock(&phba->sli4_hba.sgl_list_lock); 6375 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6376 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6377 spin_unlock_irq(&phba->hbalock); 6378 6379 /* Now free the sgl list */ 6380 lpfc_free_sgl_list(phba, &sglq_list); 6381 } 6382 6383 /** 6384 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6385 * @phba: pointer to lpfc hba data structure. 6386 * 6387 * This routine is invoked to free the driver's nvmet sgl list and memory. 6388 **/ 6389 static void 6390 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6391 { 6392 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6393 LIST_HEAD(sglq_list); 6394 6395 /* Retrieve all nvmet sgls from driver list */ 6396 spin_lock_irq(&phba->hbalock); 6397 spin_lock(&phba->sli4_hba.sgl_list_lock); 6398 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6399 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6400 spin_unlock_irq(&phba->hbalock); 6401 6402 /* Now free the sgl list */ 6403 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6404 list_del(&sglq_entry->list); 6405 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6406 kfree(sglq_entry); 6407 } 6408 } 6409 6410 /** 6411 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6412 * @phba: pointer to lpfc hba data structure. 6413 * 6414 * This routine is invoked to allocate the driver's active sgl memory. 6415 * This array will hold the sglq_entry's for active IOs. 6416 **/ 6417 static int 6418 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6419 { 6420 int size; 6421 size = sizeof(struct lpfc_sglq *); 6422 size *= phba->sli4_hba.max_cfg_param.max_xri; 6423 6424 phba->sli4_hba.lpfc_sglq_active_list = 6425 kzalloc(size, GFP_KERNEL); 6426 if (!phba->sli4_hba.lpfc_sglq_active_list) 6427 return -ENOMEM; 6428 return 0; 6429 } 6430 6431 /** 6432 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6433 * @phba: pointer to lpfc hba data structure. 6434 * 6435 * This routine is invoked to walk through the array of active sglq entries 6436 * and free all of the resources. 6437 * This is just a place holder for now. 6438 **/ 6439 static void 6440 lpfc_free_active_sgl(struct lpfc_hba *phba) 6441 { 6442 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6443 } 6444 6445 /** 6446 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6447 * @phba: pointer to lpfc hba data structure. 6448 * 6449 * This routine is invoked to allocate and initizlize the driver's sgl 6450 * list and set up the sgl xritag tag array accordingly. 6451 * 6452 **/ 6453 static void 6454 lpfc_init_sgl_list(struct lpfc_hba *phba) 6455 { 6456 /* Initialize and populate the sglq list per host/VF. */ 6457 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6458 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6459 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6460 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6461 6462 /* els xri-sgl book keeping */ 6463 phba->sli4_hba.els_xri_cnt = 0; 6464 6465 /* scsi xri-buffer book keeping */ 6466 phba->sli4_hba.scsi_xri_cnt = 0; 6467 6468 /* nvme xri-buffer book keeping */ 6469 phba->sli4_hba.nvme_xri_cnt = 0; 6470 } 6471 6472 /** 6473 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6474 * @phba: pointer to lpfc hba data structure. 6475 * 6476 * This routine is invoked to post rpi header templates to the 6477 * port for those SLI4 ports that do not support extents. This routine 6478 * posts a PAGE_SIZE memory region to the port to hold up to 6479 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6480 * and should be called only when interrupts are disabled. 6481 * 6482 * Return codes 6483 * 0 - successful 6484 * -ERROR - otherwise. 6485 **/ 6486 int 6487 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6488 { 6489 int rc = 0; 6490 struct lpfc_rpi_hdr *rpi_hdr; 6491 6492 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6493 if (!phba->sli4_hba.rpi_hdrs_in_use) 6494 return rc; 6495 if (phba->sli4_hba.extents_in_use) 6496 return -EIO; 6497 6498 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6499 if (!rpi_hdr) { 6500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6501 "0391 Error during rpi post operation\n"); 6502 lpfc_sli4_remove_rpis(phba); 6503 rc = -ENODEV; 6504 } 6505 6506 return rc; 6507 } 6508 6509 /** 6510 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6511 * @phba: pointer to lpfc hba data structure. 6512 * 6513 * This routine is invoked to allocate a single 4KB memory region to 6514 * support rpis and stores them in the phba. This single region 6515 * provides support for up to 64 rpis. The region is used globally 6516 * by the device. 6517 * 6518 * Returns: 6519 * A valid rpi hdr on success. 6520 * A NULL pointer on any failure. 6521 **/ 6522 struct lpfc_rpi_hdr * 6523 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6524 { 6525 uint16_t rpi_limit, curr_rpi_range; 6526 struct lpfc_dmabuf *dmabuf; 6527 struct lpfc_rpi_hdr *rpi_hdr; 6528 uint32_t rpi_count; 6529 6530 /* 6531 * If the SLI4 port supports extents, posting the rpi header isn't 6532 * required. Set the expected maximum count and let the actual value 6533 * get set when extents are fully allocated. 6534 */ 6535 if (!phba->sli4_hba.rpi_hdrs_in_use) 6536 return NULL; 6537 if (phba->sli4_hba.extents_in_use) 6538 return NULL; 6539 6540 /* The limit on the logical index is just the max_rpi count. */ 6541 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 6542 phba->sli4_hba.max_cfg_param.max_rpi - 1; 6543 6544 spin_lock_irq(&phba->hbalock); 6545 /* 6546 * Establish the starting RPI in this header block. The starting 6547 * rpi is normalized to a zero base because the physical rpi is 6548 * port based. 6549 */ 6550 curr_rpi_range = phba->sli4_hba.next_rpi; 6551 spin_unlock_irq(&phba->hbalock); 6552 6553 /* 6554 * The port has a limited number of rpis. The increment here 6555 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 6556 * and to allow the full max_rpi range per port. 6557 */ 6558 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 6559 rpi_count = rpi_limit - curr_rpi_range; 6560 else 6561 rpi_count = LPFC_RPI_HDR_COUNT; 6562 6563 if (!rpi_count) 6564 return NULL; 6565 /* 6566 * First allocate the protocol header region for the port. The 6567 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6568 */ 6569 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6570 if (!dmabuf) 6571 return NULL; 6572 6573 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6574 LPFC_HDR_TEMPLATE_SIZE, 6575 &dmabuf->phys, GFP_KERNEL); 6576 if (!dmabuf->virt) { 6577 rpi_hdr = NULL; 6578 goto err_free_dmabuf; 6579 } 6580 6581 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6582 rpi_hdr = NULL; 6583 goto err_free_coherent; 6584 } 6585 6586 /* Save the rpi header data for cleanup later. */ 6587 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6588 if (!rpi_hdr) 6589 goto err_free_coherent; 6590 6591 rpi_hdr->dmabuf = dmabuf; 6592 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6593 rpi_hdr->page_count = 1; 6594 spin_lock_irq(&phba->hbalock); 6595 6596 /* The rpi_hdr stores the logical index only. */ 6597 rpi_hdr->start_rpi = curr_rpi_range; 6598 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6599 6600 /* 6601 * The next_rpi stores the next logical module-64 rpi value used 6602 * to post physical rpis in subsequent rpi postings. 6603 */ 6604 phba->sli4_hba.next_rpi += rpi_count; 6605 spin_unlock_irq(&phba->hbalock); 6606 return rpi_hdr; 6607 6608 err_free_coherent: 6609 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6610 dmabuf->virt, dmabuf->phys); 6611 err_free_dmabuf: 6612 kfree(dmabuf); 6613 return NULL; 6614 } 6615 6616 /** 6617 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6618 * @phba: pointer to lpfc hba data structure. 6619 * 6620 * This routine is invoked to remove all memory resources allocated 6621 * to support rpis for SLI4 ports not supporting extents. This routine 6622 * presumes the caller has released all rpis consumed by fabric or port 6623 * logins and is prepared to have the header pages removed. 6624 **/ 6625 void 6626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6627 { 6628 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6629 6630 if (!phba->sli4_hba.rpi_hdrs_in_use) 6631 goto exit; 6632 6633 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6634 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6635 list_del(&rpi_hdr->list); 6636 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6637 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6638 kfree(rpi_hdr->dmabuf); 6639 kfree(rpi_hdr); 6640 } 6641 exit: 6642 /* There are no rpis available to the port now. */ 6643 phba->sli4_hba.next_rpi = 0; 6644 } 6645 6646 /** 6647 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6648 * @pdev: pointer to pci device data structure. 6649 * 6650 * This routine is invoked to allocate the driver hba data structure for an 6651 * HBA device. If the allocation is successful, the phba reference to the 6652 * PCI device data structure is set. 6653 * 6654 * Return codes 6655 * pointer to @phba - successful 6656 * NULL - error 6657 **/ 6658 static struct lpfc_hba * 6659 lpfc_hba_alloc(struct pci_dev *pdev) 6660 { 6661 struct lpfc_hba *phba; 6662 6663 /* Allocate memory for HBA structure */ 6664 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6665 if (!phba) { 6666 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6667 return NULL; 6668 } 6669 6670 /* Set reference to PCI device in HBA structure */ 6671 phba->pcidev = pdev; 6672 6673 /* Assign an unused board number */ 6674 phba->brd_no = lpfc_get_instance(); 6675 if (phba->brd_no < 0) { 6676 kfree(phba); 6677 return NULL; 6678 } 6679 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6680 6681 spin_lock_init(&phba->ct_ev_lock); 6682 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6683 6684 return phba; 6685 } 6686 6687 /** 6688 * lpfc_hba_free - Free driver hba data structure with a device. 6689 * @phba: pointer to lpfc hba data structure. 6690 * 6691 * This routine is invoked to free the driver hba data structure with an 6692 * HBA device. 6693 **/ 6694 static void 6695 lpfc_hba_free(struct lpfc_hba *phba) 6696 { 6697 /* Release the driver assigned board number */ 6698 idr_remove(&lpfc_hba_index, phba->brd_no); 6699 6700 /* Free memory allocated with sli3 rings */ 6701 kfree(phba->sli.sli3_ring); 6702 phba->sli.sli3_ring = NULL; 6703 6704 kfree(phba); 6705 return; 6706 } 6707 6708 /** 6709 * lpfc_create_shost - Create hba physical port with associated scsi host. 6710 * @phba: pointer to lpfc hba data structure. 6711 * 6712 * This routine is invoked to create HBA physical port and associate a SCSI 6713 * host with it. 6714 * 6715 * Return codes 6716 * 0 - successful 6717 * other values - error 6718 **/ 6719 static int 6720 lpfc_create_shost(struct lpfc_hba *phba) 6721 { 6722 struct lpfc_vport *vport; 6723 struct Scsi_Host *shost; 6724 6725 /* Initialize HBA FC structure */ 6726 phba->fc_edtov = FF_DEF_EDTOV; 6727 phba->fc_ratov = FF_DEF_RATOV; 6728 phba->fc_altov = FF_DEF_ALTOV; 6729 phba->fc_arbtov = FF_DEF_ARBTOV; 6730 6731 atomic_set(&phba->sdev_cnt, 0); 6732 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6733 if (!vport) 6734 return -ENODEV; 6735 6736 shost = lpfc_shost_from_vport(vport); 6737 phba->pport = vport; 6738 6739 if (phba->nvmet_support) { 6740 /* Only 1 vport (pport) will support NVME target */ 6741 if (phba->txrdy_payload_pool == NULL) { 6742 phba->txrdy_payload_pool = pci_pool_create( 6743 "txrdy_pool", phba->pcidev, 6744 TXRDY_PAYLOAD_LEN, 16, 0); 6745 if (phba->txrdy_payload_pool) { 6746 phba->targetport = NULL; 6747 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6748 lpfc_printf_log(phba, KERN_INFO, 6749 LOG_INIT | LOG_NVME_DISC, 6750 "6076 NVME Target Found\n"); 6751 } 6752 } 6753 } 6754 6755 lpfc_debugfs_initialize(vport); 6756 /* Put reference to SCSI host to driver's device private data */ 6757 pci_set_drvdata(phba->pcidev, shost); 6758 6759 /* 6760 * At this point we are fully registered with PSA. In addition, 6761 * any initial discovery should be completed. 6762 */ 6763 vport->load_flag |= FC_ALLOW_FDMI; 6764 if (phba->cfg_enable_SmartSAN || 6765 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6766 6767 /* Setup appropriate attribute masks */ 6768 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6769 if (phba->cfg_enable_SmartSAN) 6770 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6771 else 6772 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6773 } 6774 return 0; 6775 } 6776 6777 /** 6778 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6779 * @phba: pointer to lpfc hba data structure. 6780 * 6781 * This routine is invoked to destroy HBA physical port and the associated 6782 * SCSI host. 6783 **/ 6784 static void 6785 lpfc_destroy_shost(struct lpfc_hba *phba) 6786 { 6787 struct lpfc_vport *vport = phba->pport; 6788 6789 /* Destroy physical port that associated with the SCSI host */ 6790 destroy_port(vport); 6791 6792 return; 6793 } 6794 6795 /** 6796 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6797 * @phba: pointer to lpfc hba data structure. 6798 * @shost: the shost to be used to detect Block guard settings. 6799 * 6800 * This routine sets up the local Block guard protocol settings for @shost. 6801 * This routine also allocates memory for debugging bg buffers. 6802 **/ 6803 static void 6804 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6805 { 6806 uint32_t old_mask; 6807 uint32_t old_guard; 6808 6809 int pagecnt = 10; 6810 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6811 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6812 "1478 Registering BlockGuard with the " 6813 "SCSI layer\n"); 6814 6815 old_mask = phba->cfg_prot_mask; 6816 old_guard = phba->cfg_prot_guard; 6817 6818 /* Only allow supported values */ 6819 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6820 SHOST_DIX_TYPE0_PROTECTION | 6821 SHOST_DIX_TYPE1_PROTECTION); 6822 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6823 SHOST_DIX_GUARD_CRC); 6824 6825 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6826 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6827 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6828 6829 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6830 if ((old_mask != phba->cfg_prot_mask) || 6831 (old_guard != phba->cfg_prot_guard)) 6832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6833 "1475 Registering BlockGuard with the " 6834 "SCSI layer: mask %d guard %d\n", 6835 phba->cfg_prot_mask, 6836 phba->cfg_prot_guard); 6837 6838 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6839 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6840 } else 6841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6842 "1479 Not Registering BlockGuard with the SCSI " 6843 "layer, Bad protection parameters: %d %d\n", 6844 old_mask, old_guard); 6845 } 6846 6847 if (!_dump_buf_data) { 6848 while (pagecnt) { 6849 spin_lock_init(&_dump_buf_lock); 6850 _dump_buf_data = 6851 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6852 if (_dump_buf_data) { 6853 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6854 "9043 BLKGRD: allocated %d pages for " 6855 "_dump_buf_data at 0x%p\n", 6856 (1 << pagecnt), _dump_buf_data); 6857 _dump_buf_data_order = pagecnt; 6858 memset(_dump_buf_data, 0, 6859 ((1 << PAGE_SHIFT) << pagecnt)); 6860 break; 6861 } else 6862 --pagecnt; 6863 } 6864 if (!_dump_buf_data_order) 6865 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6866 "9044 BLKGRD: ERROR unable to allocate " 6867 "memory for hexdump\n"); 6868 } else 6869 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6870 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6871 "\n", _dump_buf_data); 6872 if (!_dump_buf_dif) { 6873 while (pagecnt) { 6874 _dump_buf_dif = 6875 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6876 if (_dump_buf_dif) { 6877 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6878 "9046 BLKGRD: allocated %d pages for " 6879 "_dump_buf_dif at 0x%p\n", 6880 (1 << pagecnt), _dump_buf_dif); 6881 _dump_buf_dif_order = pagecnt; 6882 memset(_dump_buf_dif, 0, 6883 ((1 << PAGE_SHIFT) << pagecnt)); 6884 break; 6885 } else 6886 --pagecnt; 6887 } 6888 if (!_dump_buf_dif_order) 6889 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6890 "9047 BLKGRD: ERROR unable to allocate " 6891 "memory for hexdump\n"); 6892 } else 6893 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6894 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6895 _dump_buf_dif); 6896 } 6897 6898 /** 6899 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6900 * @phba: pointer to lpfc hba data structure. 6901 * 6902 * This routine is invoked to perform all the necessary post initialization 6903 * setup for the device. 6904 **/ 6905 static void 6906 lpfc_post_init_setup(struct lpfc_hba *phba) 6907 { 6908 struct Scsi_Host *shost; 6909 struct lpfc_adapter_event_header adapter_event; 6910 6911 /* Get the default values for Model Name and Description */ 6912 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6913 6914 /* 6915 * hba setup may have changed the hba_queue_depth so we need to 6916 * adjust the value of can_queue. 6917 */ 6918 shost = pci_get_drvdata(phba->pcidev); 6919 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6920 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6921 lpfc_setup_bg(phba, shost); 6922 6923 lpfc_host_attrib_init(shost); 6924 6925 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6926 spin_lock_irq(shost->host_lock); 6927 lpfc_poll_start_timer(phba); 6928 spin_unlock_irq(shost->host_lock); 6929 } 6930 6931 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6932 "0428 Perform SCSI scan\n"); 6933 /* Send board arrival event to upper layer */ 6934 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6935 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6936 fc_host_post_vendor_event(shost, fc_get_event_number(), 6937 sizeof(adapter_event), 6938 (char *) &adapter_event, 6939 LPFC_NL_VENDOR_ID); 6940 return; 6941 } 6942 6943 /** 6944 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6945 * @phba: pointer to lpfc hba data structure. 6946 * 6947 * This routine is invoked to set up the PCI device memory space for device 6948 * with SLI-3 interface spec. 6949 * 6950 * Return codes 6951 * 0 - successful 6952 * other values - error 6953 **/ 6954 static int 6955 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6956 { 6957 struct pci_dev *pdev; 6958 unsigned long bar0map_len, bar2map_len; 6959 int i, hbq_count; 6960 void *ptr; 6961 int error = -ENODEV; 6962 6963 /* Obtain PCI device reference */ 6964 if (!phba->pcidev) 6965 return error; 6966 else 6967 pdev = phba->pcidev; 6968 6969 /* Set the device DMA mask size */ 6970 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6971 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6972 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6973 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6974 return error; 6975 } 6976 } 6977 6978 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6979 * required by each mapping. 6980 */ 6981 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6982 bar0map_len = pci_resource_len(pdev, 0); 6983 6984 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6985 bar2map_len = pci_resource_len(pdev, 2); 6986 6987 /* Map HBA SLIM to a kernel virtual address. */ 6988 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6989 if (!phba->slim_memmap_p) { 6990 dev_printk(KERN_ERR, &pdev->dev, 6991 "ioremap failed for SLIM memory.\n"); 6992 goto out; 6993 } 6994 6995 /* Map HBA Control Registers to a kernel virtual address. */ 6996 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6997 if (!phba->ctrl_regs_memmap_p) { 6998 dev_printk(KERN_ERR, &pdev->dev, 6999 "ioremap failed for HBA control registers.\n"); 7000 goto out_iounmap_slim; 7001 } 7002 7003 /* Allocate memory for SLI-2 structures */ 7004 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7005 &phba->slim2p.phys, GFP_KERNEL); 7006 if (!phba->slim2p.virt) 7007 goto out_iounmap; 7008 7009 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7010 phba->mbox_ext = (phba->slim2p.virt + 7011 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7012 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7013 phba->IOCBs = (phba->slim2p.virt + 7014 offsetof(struct lpfc_sli2_slim, IOCBs)); 7015 7016 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7017 lpfc_sli_hbq_size(), 7018 &phba->hbqslimp.phys, 7019 GFP_KERNEL); 7020 if (!phba->hbqslimp.virt) 7021 goto out_free_slim; 7022 7023 hbq_count = lpfc_sli_hbq_count(); 7024 ptr = phba->hbqslimp.virt; 7025 for (i = 0; i < hbq_count; ++i) { 7026 phba->hbqs[i].hbq_virt = ptr; 7027 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7028 ptr += (lpfc_hbq_defs[i]->entry_count * 7029 sizeof(struct lpfc_hbq_entry)); 7030 } 7031 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7032 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7033 7034 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7035 7036 phba->MBslimaddr = phba->slim_memmap_p; 7037 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7038 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7039 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7040 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7041 7042 return 0; 7043 7044 out_free_slim: 7045 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7046 phba->slim2p.virt, phba->slim2p.phys); 7047 out_iounmap: 7048 iounmap(phba->ctrl_regs_memmap_p); 7049 out_iounmap_slim: 7050 iounmap(phba->slim_memmap_p); 7051 out: 7052 return error; 7053 } 7054 7055 /** 7056 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7057 * @phba: pointer to lpfc hba data structure. 7058 * 7059 * This routine is invoked to unset the PCI device memory space for device 7060 * with SLI-3 interface spec. 7061 **/ 7062 static void 7063 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7064 { 7065 struct pci_dev *pdev; 7066 7067 /* Obtain PCI device reference */ 7068 if (!phba->pcidev) 7069 return; 7070 else 7071 pdev = phba->pcidev; 7072 7073 /* Free coherent DMA memory allocated */ 7074 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7075 phba->hbqslimp.virt, phba->hbqslimp.phys); 7076 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7077 phba->slim2p.virt, phba->slim2p.phys); 7078 7079 /* I/O memory unmap */ 7080 iounmap(phba->ctrl_regs_memmap_p); 7081 iounmap(phba->slim_memmap_p); 7082 7083 return; 7084 } 7085 7086 /** 7087 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7088 * @phba: pointer to lpfc hba data structure. 7089 * 7090 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7091 * done and check status. 7092 * 7093 * Return 0 if successful, otherwise -ENODEV. 7094 **/ 7095 int 7096 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7097 { 7098 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7099 struct lpfc_register reg_data; 7100 int i, port_error = 0; 7101 uint32_t if_type; 7102 7103 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7104 memset(®_data, 0, sizeof(reg_data)); 7105 if (!phba->sli4_hba.PSMPHRregaddr) 7106 return -ENODEV; 7107 7108 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7109 for (i = 0; i < 3000; i++) { 7110 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7111 &portsmphr_reg.word0) || 7112 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7113 /* Port has a fatal POST error, break out */ 7114 port_error = -ENODEV; 7115 break; 7116 } 7117 if (LPFC_POST_STAGE_PORT_READY == 7118 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7119 break; 7120 msleep(10); 7121 } 7122 7123 /* 7124 * If there was a port error during POST, then don't proceed with 7125 * other register reads as the data may not be valid. Just exit. 7126 */ 7127 if (port_error) { 7128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7129 "1408 Port Failed POST - portsmphr=0x%x, " 7130 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7131 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7132 portsmphr_reg.word0, 7133 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7134 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7135 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7136 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7137 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7138 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7139 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7140 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7141 } else { 7142 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7143 "2534 Device Info: SLIFamily=0x%x, " 7144 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7145 "SLIHint_2=0x%x, FT=0x%x\n", 7146 bf_get(lpfc_sli_intf_sli_family, 7147 &phba->sli4_hba.sli_intf), 7148 bf_get(lpfc_sli_intf_slirev, 7149 &phba->sli4_hba.sli_intf), 7150 bf_get(lpfc_sli_intf_if_type, 7151 &phba->sli4_hba.sli_intf), 7152 bf_get(lpfc_sli_intf_sli_hint1, 7153 &phba->sli4_hba.sli_intf), 7154 bf_get(lpfc_sli_intf_sli_hint2, 7155 &phba->sli4_hba.sli_intf), 7156 bf_get(lpfc_sli_intf_func_type, 7157 &phba->sli4_hba.sli_intf)); 7158 /* 7159 * Check for other Port errors during the initialization 7160 * process. Fail the load if the port did not come up 7161 * correctly. 7162 */ 7163 if_type = bf_get(lpfc_sli_intf_if_type, 7164 &phba->sli4_hba.sli_intf); 7165 switch (if_type) { 7166 case LPFC_SLI_INTF_IF_TYPE_0: 7167 phba->sli4_hba.ue_mask_lo = 7168 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7169 phba->sli4_hba.ue_mask_hi = 7170 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7171 uerrlo_reg.word0 = 7172 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7173 uerrhi_reg.word0 = 7174 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7175 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7176 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7178 "1422 Unrecoverable Error " 7179 "Detected during POST " 7180 "uerr_lo_reg=0x%x, " 7181 "uerr_hi_reg=0x%x, " 7182 "ue_mask_lo_reg=0x%x, " 7183 "ue_mask_hi_reg=0x%x\n", 7184 uerrlo_reg.word0, 7185 uerrhi_reg.word0, 7186 phba->sli4_hba.ue_mask_lo, 7187 phba->sli4_hba.ue_mask_hi); 7188 port_error = -ENODEV; 7189 } 7190 break; 7191 case LPFC_SLI_INTF_IF_TYPE_2: 7192 /* Final checks. The port status should be clean. */ 7193 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7194 ®_data.word0) || 7195 (bf_get(lpfc_sliport_status_err, ®_data) && 7196 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7197 phba->work_status[0] = 7198 readl(phba->sli4_hba.u.if_type2. 7199 ERR1regaddr); 7200 phba->work_status[1] = 7201 readl(phba->sli4_hba.u.if_type2. 7202 ERR2regaddr); 7203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7204 "2888 Unrecoverable port error " 7205 "following POST: port status reg " 7206 "0x%x, port_smphr reg 0x%x, " 7207 "error 1=0x%x, error 2=0x%x\n", 7208 reg_data.word0, 7209 portsmphr_reg.word0, 7210 phba->work_status[0], 7211 phba->work_status[1]); 7212 port_error = -ENODEV; 7213 } 7214 break; 7215 case LPFC_SLI_INTF_IF_TYPE_1: 7216 default: 7217 break; 7218 } 7219 } 7220 return port_error; 7221 } 7222 7223 /** 7224 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7225 * @phba: pointer to lpfc hba data structure. 7226 * @if_type: The SLI4 interface type getting configured. 7227 * 7228 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7229 * memory map. 7230 **/ 7231 static void 7232 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7233 { 7234 switch (if_type) { 7235 case LPFC_SLI_INTF_IF_TYPE_0: 7236 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7237 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7238 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7239 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7240 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7241 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7242 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7243 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7244 phba->sli4_hba.SLIINTFregaddr = 7245 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7246 break; 7247 case LPFC_SLI_INTF_IF_TYPE_2: 7248 phba->sli4_hba.u.if_type2.ERR1regaddr = 7249 phba->sli4_hba.conf_regs_memmap_p + 7250 LPFC_CTL_PORT_ER1_OFFSET; 7251 phba->sli4_hba.u.if_type2.ERR2regaddr = 7252 phba->sli4_hba.conf_regs_memmap_p + 7253 LPFC_CTL_PORT_ER2_OFFSET; 7254 phba->sli4_hba.u.if_type2.CTRLregaddr = 7255 phba->sli4_hba.conf_regs_memmap_p + 7256 LPFC_CTL_PORT_CTL_OFFSET; 7257 phba->sli4_hba.u.if_type2.STATUSregaddr = 7258 phba->sli4_hba.conf_regs_memmap_p + 7259 LPFC_CTL_PORT_STA_OFFSET; 7260 phba->sli4_hba.SLIINTFregaddr = 7261 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7262 phba->sli4_hba.PSMPHRregaddr = 7263 phba->sli4_hba.conf_regs_memmap_p + 7264 LPFC_CTL_PORT_SEM_OFFSET; 7265 phba->sli4_hba.RQDBregaddr = 7266 phba->sli4_hba.conf_regs_memmap_p + 7267 LPFC_ULP0_RQ_DOORBELL; 7268 phba->sli4_hba.WQDBregaddr = 7269 phba->sli4_hba.conf_regs_memmap_p + 7270 LPFC_ULP0_WQ_DOORBELL; 7271 phba->sli4_hba.EQCQDBregaddr = 7272 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7273 phba->sli4_hba.MQDBregaddr = 7274 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7275 phba->sli4_hba.BMBXregaddr = 7276 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7277 break; 7278 case LPFC_SLI_INTF_IF_TYPE_1: 7279 default: 7280 dev_printk(KERN_ERR, &phba->pcidev->dev, 7281 "FATAL - unsupported SLI4 interface type - %d\n", 7282 if_type); 7283 break; 7284 } 7285 } 7286 7287 /** 7288 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7289 * @phba: pointer to lpfc hba data structure. 7290 * 7291 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7292 * memory map. 7293 **/ 7294 static void 7295 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7296 { 7297 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7298 LPFC_SLIPORT_IF0_SMPHR; 7299 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7300 LPFC_HST_ISR0; 7301 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7302 LPFC_HST_IMR0; 7303 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7304 LPFC_HST_ISCR0; 7305 } 7306 7307 /** 7308 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7309 * @phba: pointer to lpfc hba data structure. 7310 * @vf: virtual function number 7311 * 7312 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7313 * based on the given viftual function number, @vf. 7314 * 7315 * Return 0 if successful, otherwise -ENODEV. 7316 **/ 7317 static int 7318 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7319 { 7320 if (vf > LPFC_VIR_FUNC_MAX) 7321 return -ENODEV; 7322 7323 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7324 vf * LPFC_VFR_PAGE_SIZE + 7325 LPFC_ULP0_RQ_DOORBELL); 7326 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7327 vf * LPFC_VFR_PAGE_SIZE + 7328 LPFC_ULP0_WQ_DOORBELL); 7329 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7330 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7331 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7332 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7333 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7334 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7335 return 0; 7336 } 7337 7338 /** 7339 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7340 * @phba: pointer to lpfc hba data structure. 7341 * 7342 * This routine is invoked to create the bootstrap mailbox 7343 * region consistent with the SLI-4 interface spec. This 7344 * routine allocates all memory necessary to communicate 7345 * mailbox commands to the port and sets up all alignment 7346 * needs. No locks are expected to be held when calling 7347 * this routine. 7348 * 7349 * Return codes 7350 * 0 - successful 7351 * -ENOMEM - could not allocated memory. 7352 **/ 7353 static int 7354 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7355 { 7356 uint32_t bmbx_size; 7357 struct lpfc_dmabuf *dmabuf; 7358 struct dma_address *dma_address; 7359 uint32_t pa_addr; 7360 uint64_t phys_addr; 7361 7362 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7363 if (!dmabuf) 7364 return -ENOMEM; 7365 7366 /* 7367 * The bootstrap mailbox region is comprised of 2 parts 7368 * plus an alignment restriction of 16 bytes. 7369 */ 7370 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7371 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7372 &dmabuf->phys, GFP_KERNEL); 7373 if (!dmabuf->virt) { 7374 kfree(dmabuf); 7375 return -ENOMEM; 7376 } 7377 7378 /* 7379 * Initialize the bootstrap mailbox pointers now so that the register 7380 * operations are simple later. The mailbox dma address is required 7381 * to be 16-byte aligned. Also align the virtual memory as each 7382 * maibox is copied into the bmbx mailbox region before issuing the 7383 * command to the port. 7384 */ 7385 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7386 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7387 7388 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7389 LPFC_ALIGN_16_BYTE); 7390 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7391 LPFC_ALIGN_16_BYTE); 7392 7393 /* 7394 * Set the high and low physical addresses now. The SLI4 alignment 7395 * requirement is 16 bytes and the mailbox is posted to the port 7396 * as two 30-bit addresses. The other data is a bit marking whether 7397 * the 30-bit address is the high or low address. 7398 * Upcast bmbx aphys to 64bits so shift instruction compiles 7399 * clean on 32 bit machines. 7400 */ 7401 dma_address = &phba->sli4_hba.bmbx.dma_address; 7402 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7403 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7404 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7405 LPFC_BMBX_BIT1_ADDR_HI); 7406 7407 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7408 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7409 LPFC_BMBX_BIT1_ADDR_LO); 7410 return 0; 7411 } 7412 7413 /** 7414 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7415 * @phba: pointer to lpfc hba data structure. 7416 * 7417 * This routine is invoked to teardown the bootstrap mailbox 7418 * region and release all host resources. This routine requires 7419 * the caller to ensure all mailbox commands recovered, no 7420 * additional mailbox comands are sent, and interrupts are disabled 7421 * before calling this routine. 7422 * 7423 **/ 7424 static void 7425 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7426 { 7427 dma_free_coherent(&phba->pcidev->dev, 7428 phba->sli4_hba.bmbx.bmbx_size, 7429 phba->sli4_hba.bmbx.dmabuf->virt, 7430 phba->sli4_hba.bmbx.dmabuf->phys); 7431 7432 kfree(phba->sli4_hba.bmbx.dmabuf); 7433 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7434 } 7435 7436 /** 7437 * lpfc_sli4_read_config - Get the config parameters. 7438 * @phba: pointer to lpfc hba data structure. 7439 * 7440 * This routine is invoked to read the configuration parameters from the HBA. 7441 * The configuration parameters are used to set the base and maximum values 7442 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7443 * allocation for the port. 7444 * 7445 * Return codes 7446 * 0 - successful 7447 * -ENOMEM - No available memory 7448 * -EIO - The mailbox failed to complete successfully. 7449 **/ 7450 int 7451 lpfc_sli4_read_config(struct lpfc_hba *phba) 7452 { 7453 LPFC_MBOXQ_t *pmb; 7454 struct lpfc_mbx_read_config *rd_config; 7455 union lpfc_sli4_cfg_shdr *shdr; 7456 uint32_t shdr_status, shdr_add_status; 7457 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7458 struct lpfc_rsrc_desc_fcfcoe *desc; 7459 char *pdesc_0; 7460 uint16_t forced_link_speed; 7461 uint32_t if_type; 7462 int length, i, rc = 0, rc2; 7463 7464 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7465 if (!pmb) { 7466 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7467 "2011 Unable to allocate memory for issuing " 7468 "SLI_CONFIG_SPECIAL mailbox command\n"); 7469 return -ENOMEM; 7470 } 7471 7472 lpfc_read_config(phba, pmb); 7473 7474 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7475 if (rc != MBX_SUCCESS) { 7476 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7477 "2012 Mailbox failed , mbxCmd x%x " 7478 "READ_CONFIG, mbxStatus x%x\n", 7479 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7480 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7481 rc = -EIO; 7482 } else { 7483 rd_config = &pmb->u.mqe.un.rd_config; 7484 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7485 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7486 phba->sli4_hba.lnk_info.lnk_tp = 7487 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7488 phba->sli4_hba.lnk_info.lnk_no = 7489 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7490 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7491 "3081 lnk_type:%d, lnk_numb:%d\n", 7492 phba->sli4_hba.lnk_info.lnk_tp, 7493 phba->sli4_hba.lnk_info.lnk_no); 7494 } else 7495 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7496 "3082 Mailbox (x%x) returned ldv:x0\n", 7497 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7498 phba->sli4_hba.extents_in_use = 7499 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7500 phba->sli4_hba.max_cfg_param.max_xri = 7501 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7502 phba->sli4_hba.max_cfg_param.xri_base = 7503 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7504 phba->sli4_hba.max_cfg_param.max_vpi = 7505 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7506 phba->sli4_hba.max_cfg_param.vpi_base = 7507 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7508 phba->sli4_hba.max_cfg_param.max_rpi = 7509 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7510 phba->sli4_hba.max_cfg_param.rpi_base = 7511 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7512 phba->sli4_hba.max_cfg_param.max_vfi = 7513 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7514 phba->sli4_hba.max_cfg_param.vfi_base = 7515 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7516 phba->sli4_hba.max_cfg_param.max_fcfi = 7517 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7518 phba->sli4_hba.max_cfg_param.max_eq = 7519 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7520 phba->sli4_hba.max_cfg_param.max_rq = 7521 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7522 phba->sli4_hba.max_cfg_param.max_wq = 7523 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7524 phba->sli4_hba.max_cfg_param.max_cq = 7525 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7526 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7527 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7528 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7529 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7530 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7531 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7532 phba->max_vports = phba->max_vpi; 7533 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7534 "2003 cfg params Extents? %d " 7535 "XRI(B:%d M:%d), " 7536 "VPI(B:%d M:%d) " 7537 "VFI(B:%d M:%d) " 7538 "RPI(B:%d M:%d) " 7539 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7540 phba->sli4_hba.extents_in_use, 7541 phba->sli4_hba.max_cfg_param.xri_base, 7542 phba->sli4_hba.max_cfg_param.max_xri, 7543 phba->sli4_hba.max_cfg_param.vpi_base, 7544 phba->sli4_hba.max_cfg_param.max_vpi, 7545 phba->sli4_hba.max_cfg_param.vfi_base, 7546 phba->sli4_hba.max_cfg_param.max_vfi, 7547 phba->sli4_hba.max_cfg_param.rpi_base, 7548 phba->sli4_hba.max_cfg_param.max_rpi, 7549 phba->sli4_hba.max_cfg_param.max_fcfi, 7550 phba->sli4_hba.max_cfg_param.max_eq, 7551 phba->sli4_hba.max_cfg_param.max_cq, 7552 phba->sli4_hba.max_cfg_param.max_wq, 7553 phba->sli4_hba.max_cfg_param.max_rq); 7554 7555 } 7556 7557 if (rc) 7558 goto read_cfg_out; 7559 7560 /* Update link speed if forced link speed is supported */ 7561 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7562 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7563 forced_link_speed = 7564 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7565 if (forced_link_speed) { 7566 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7567 7568 switch (forced_link_speed) { 7569 case LINK_SPEED_1G: 7570 phba->cfg_link_speed = 7571 LPFC_USER_LINK_SPEED_1G; 7572 break; 7573 case LINK_SPEED_2G: 7574 phba->cfg_link_speed = 7575 LPFC_USER_LINK_SPEED_2G; 7576 break; 7577 case LINK_SPEED_4G: 7578 phba->cfg_link_speed = 7579 LPFC_USER_LINK_SPEED_4G; 7580 break; 7581 case LINK_SPEED_8G: 7582 phba->cfg_link_speed = 7583 LPFC_USER_LINK_SPEED_8G; 7584 break; 7585 case LINK_SPEED_10G: 7586 phba->cfg_link_speed = 7587 LPFC_USER_LINK_SPEED_10G; 7588 break; 7589 case LINK_SPEED_16G: 7590 phba->cfg_link_speed = 7591 LPFC_USER_LINK_SPEED_16G; 7592 break; 7593 case LINK_SPEED_32G: 7594 phba->cfg_link_speed = 7595 LPFC_USER_LINK_SPEED_32G; 7596 break; 7597 case 0xffff: 7598 phba->cfg_link_speed = 7599 LPFC_USER_LINK_SPEED_AUTO; 7600 break; 7601 default: 7602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7603 "0047 Unrecognized link " 7604 "speed : %d\n", 7605 forced_link_speed); 7606 phba->cfg_link_speed = 7607 LPFC_USER_LINK_SPEED_AUTO; 7608 } 7609 } 7610 } 7611 7612 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7613 length = phba->sli4_hba.max_cfg_param.max_xri - 7614 lpfc_sli4_get_els_iocb_cnt(phba); 7615 if (phba->cfg_hba_queue_depth > length) { 7616 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7617 "3361 HBA queue depth changed from %d to %d\n", 7618 phba->cfg_hba_queue_depth, length); 7619 phba->cfg_hba_queue_depth = length; 7620 } 7621 7622 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7623 LPFC_SLI_INTF_IF_TYPE_2) 7624 goto read_cfg_out; 7625 7626 /* get the pf# and vf# for SLI4 if_type 2 port */ 7627 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7628 sizeof(struct lpfc_sli4_cfg_mhdr)); 7629 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7630 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7631 length, LPFC_SLI4_MBX_EMBED); 7632 7633 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7634 shdr = (union lpfc_sli4_cfg_shdr *) 7635 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7636 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7637 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7638 if (rc2 || shdr_status || shdr_add_status) { 7639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7640 "3026 Mailbox failed , mbxCmd x%x " 7641 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7642 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7643 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7644 goto read_cfg_out; 7645 } 7646 7647 /* search for fc_fcoe resrouce descriptor */ 7648 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7649 7650 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7651 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7652 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7653 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7654 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7655 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7656 goto read_cfg_out; 7657 7658 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7659 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7660 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7661 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7662 phba->sli4_hba.iov.pf_number = 7663 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7664 phba->sli4_hba.iov.vf_number = 7665 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7666 break; 7667 } 7668 } 7669 7670 if (i < LPFC_RSRC_DESC_MAX_NUM) 7671 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7672 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7673 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7674 phba->sli4_hba.iov.vf_number); 7675 else 7676 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7677 "3028 GET_FUNCTION_CONFIG: failed to find " 7678 "Resrouce Descriptor:x%x\n", 7679 LPFC_RSRC_DESC_TYPE_FCFCOE); 7680 7681 read_cfg_out: 7682 mempool_free(pmb, phba->mbox_mem_pool); 7683 return rc; 7684 } 7685 7686 /** 7687 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7688 * @phba: pointer to lpfc hba data structure. 7689 * 7690 * This routine is invoked to setup the port-side endian order when 7691 * the port if_type is 0. This routine has no function for other 7692 * if_types. 7693 * 7694 * Return codes 7695 * 0 - successful 7696 * -ENOMEM - No available memory 7697 * -EIO - The mailbox failed to complete successfully. 7698 **/ 7699 static int 7700 lpfc_setup_endian_order(struct lpfc_hba *phba) 7701 { 7702 LPFC_MBOXQ_t *mboxq; 7703 uint32_t if_type, rc = 0; 7704 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7705 HOST_ENDIAN_HIGH_WORD1}; 7706 7707 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7708 switch (if_type) { 7709 case LPFC_SLI_INTF_IF_TYPE_0: 7710 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7711 GFP_KERNEL); 7712 if (!mboxq) { 7713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7714 "0492 Unable to allocate memory for " 7715 "issuing SLI_CONFIG_SPECIAL mailbox " 7716 "command\n"); 7717 return -ENOMEM; 7718 } 7719 7720 /* 7721 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7722 * two words to contain special data values and no other data. 7723 */ 7724 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7725 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7726 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7727 if (rc != MBX_SUCCESS) { 7728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7729 "0493 SLI_CONFIG_SPECIAL mailbox " 7730 "failed with status x%x\n", 7731 rc); 7732 rc = -EIO; 7733 } 7734 mempool_free(mboxq, phba->mbox_mem_pool); 7735 break; 7736 case LPFC_SLI_INTF_IF_TYPE_2: 7737 case LPFC_SLI_INTF_IF_TYPE_1: 7738 default: 7739 break; 7740 } 7741 return rc; 7742 } 7743 7744 /** 7745 * lpfc_sli4_queue_verify - Verify and update EQ counts 7746 * @phba: pointer to lpfc hba data structure. 7747 * 7748 * This routine is invoked to check the user settable queue counts for EQs. 7749 * After this routine is called the counts will be set to valid values that 7750 * adhere to the constraints of the system's interrupt vectors and the port's 7751 * queue resources. 7752 * 7753 * Return codes 7754 * 0 - successful 7755 * -ENOMEM - No available memory 7756 **/ 7757 static int 7758 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7759 { 7760 int io_channel; 7761 int fof_vectors = phba->cfg_fof ? 1 : 0; 7762 7763 /* 7764 * Sanity check for configured queue parameters against the run-time 7765 * device parameters 7766 */ 7767 7768 /* Sanity check on HBA EQ parameters */ 7769 io_channel = phba->io_channel_irqs; 7770 7771 if (phba->sli4_hba.num_online_cpu < io_channel) { 7772 lpfc_printf_log(phba, 7773 KERN_ERR, LOG_INIT, 7774 "3188 Reducing IO channels to match number of " 7775 "online CPUs: from %d to %d\n", 7776 io_channel, phba->sli4_hba.num_online_cpu); 7777 io_channel = phba->sli4_hba.num_online_cpu; 7778 } 7779 7780 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7782 "2575 Reducing IO channels to match number of " 7783 "available EQs: from %d to %d\n", 7784 io_channel, 7785 phba->sli4_hba.max_cfg_param.max_eq); 7786 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7787 } 7788 7789 /* The actual number of FCP / NVME event queues adopted */ 7790 if (io_channel != phba->io_channel_irqs) 7791 phba->io_channel_irqs = io_channel; 7792 if (phba->cfg_fcp_io_channel > io_channel) 7793 phba->cfg_fcp_io_channel = io_channel; 7794 if (phba->cfg_nvme_io_channel > io_channel) 7795 phba->cfg_nvme_io_channel = io_channel; 7796 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7797 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7798 7799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7800 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7801 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7802 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7803 7804 /* Get EQ depth from module parameter, fake the default for now */ 7805 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7806 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7807 7808 /* Get CQ depth from module parameter, fake the default for now */ 7809 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7810 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7811 return 0; 7812 } 7813 7814 static int 7815 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7816 { 7817 struct lpfc_queue *qdesc; 7818 int cnt; 7819 7820 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7821 phba->sli4_hba.cq_ecount); 7822 if (!qdesc) { 7823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7824 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7825 wqidx); 7826 return 1; 7827 } 7828 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7829 7830 cnt = LPFC_NVME_WQSIZE; 7831 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7832 if (!qdesc) { 7833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7834 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7835 wqidx); 7836 return 1; 7837 } 7838 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7839 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7840 return 0; 7841 } 7842 7843 static int 7844 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7845 { 7846 struct lpfc_queue *qdesc; 7847 uint32_t wqesize; 7848 7849 /* Create Fast Path FCP CQs */ 7850 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7851 phba->sli4_hba.cq_ecount); 7852 if (!qdesc) { 7853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7854 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7855 return 1; 7856 } 7857 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7858 7859 /* Create Fast Path FCP WQs */ 7860 wqesize = (phba->fcp_embed_io) ? 7861 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7862 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7863 if (!qdesc) { 7864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7865 "0503 Failed allocate fast-path FCP WQ (%d)\n", 7866 wqidx); 7867 return 1; 7868 } 7869 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 7870 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7871 return 0; 7872 } 7873 7874 /** 7875 * lpfc_sli4_queue_create - Create all the SLI4 queues 7876 * @phba: pointer to lpfc hba data structure. 7877 * 7878 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7879 * operation. For each SLI4 queue type, the parameters such as queue entry 7880 * count (queue depth) shall be taken from the module parameter. For now, 7881 * we just use some constant number as place holder. 7882 * 7883 * Return codes 7884 * 0 - successful 7885 * -ENOMEM - No availble memory 7886 * -EIO - The mailbox failed to complete successfully. 7887 **/ 7888 int 7889 lpfc_sli4_queue_create(struct lpfc_hba *phba) 7890 { 7891 struct lpfc_queue *qdesc; 7892 int idx, io_channel; 7893 7894 /* 7895 * Create HBA Record arrays. 7896 * Both NVME and FCP will share that same vectors / EQs 7897 */ 7898 io_channel = phba->io_channel_irqs; 7899 if (!io_channel) 7900 return -ERANGE; 7901 7902 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 7903 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 7904 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 7905 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 7906 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 7907 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 7908 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7909 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7910 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7911 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7912 7913 phba->sli4_hba.hba_eq = kcalloc(io_channel, 7914 sizeof(struct lpfc_queue *), 7915 GFP_KERNEL); 7916 if (!phba->sli4_hba.hba_eq) { 7917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7918 "2576 Failed allocate memory for " 7919 "fast-path EQ record array\n"); 7920 goto out_error; 7921 } 7922 7923 if (phba->cfg_fcp_io_channel) { 7924 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 7925 sizeof(struct lpfc_queue *), 7926 GFP_KERNEL); 7927 if (!phba->sli4_hba.fcp_cq) { 7928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7929 "2577 Failed allocate memory for " 7930 "fast-path CQ record array\n"); 7931 goto out_error; 7932 } 7933 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 7934 sizeof(struct lpfc_queue *), 7935 GFP_KERNEL); 7936 if (!phba->sli4_hba.fcp_wq) { 7937 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7938 "2578 Failed allocate memory for " 7939 "fast-path FCP WQ record array\n"); 7940 goto out_error; 7941 } 7942 /* 7943 * Since the first EQ can have multiple CQs associated with it, 7944 * this array is used to quickly see if we have a FCP fast-path 7945 * CQ match. 7946 */ 7947 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 7948 sizeof(uint16_t), 7949 GFP_KERNEL); 7950 if (!phba->sli4_hba.fcp_cq_map) { 7951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7952 "2545 Failed allocate memory for " 7953 "fast-path CQ map\n"); 7954 goto out_error; 7955 } 7956 } 7957 7958 if (phba->cfg_nvme_io_channel) { 7959 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 7960 sizeof(struct lpfc_queue *), 7961 GFP_KERNEL); 7962 if (!phba->sli4_hba.nvme_cq) { 7963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7964 "6077 Failed allocate memory for " 7965 "fast-path CQ record array\n"); 7966 goto out_error; 7967 } 7968 7969 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 7970 sizeof(struct lpfc_queue *), 7971 GFP_KERNEL); 7972 if (!phba->sli4_hba.nvme_wq) { 7973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7974 "2581 Failed allocate memory for " 7975 "fast-path NVME WQ record array\n"); 7976 goto out_error; 7977 } 7978 7979 /* 7980 * Since the first EQ can have multiple CQs associated with it, 7981 * this array is used to quickly see if we have a NVME fast-path 7982 * CQ match. 7983 */ 7984 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 7985 sizeof(uint16_t), 7986 GFP_KERNEL); 7987 if (!phba->sli4_hba.nvme_cq_map) { 7988 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7989 "6078 Failed allocate memory for " 7990 "fast-path CQ map\n"); 7991 goto out_error; 7992 } 7993 7994 if (phba->nvmet_support) { 7995 phba->sli4_hba.nvmet_cqset = kcalloc( 7996 phba->cfg_nvmet_mrq, 7997 sizeof(struct lpfc_queue *), 7998 GFP_KERNEL); 7999 if (!phba->sli4_hba.nvmet_cqset) { 8000 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8001 "3121 Fail allocate memory for " 8002 "fast-path CQ set array\n"); 8003 goto out_error; 8004 } 8005 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8006 phba->cfg_nvmet_mrq, 8007 sizeof(struct lpfc_queue *), 8008 GFP_KERNEL); 8009 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8011 "3122 Fail allocate memory for " 8012 "fast-path RQ set hdr array\n"); 8013 goto out_error; 8014 } 8015 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8016 phba->cfg_nvmet_mrq, 8017 sizeof(struct lpfc_queue *), 8018 GFP_KERNEL); 8019 if (!phba->sli4_hba.nvmet_mrq_data) { 8020 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8021 "3124 Fail allocate memory for " 8022 "fast-path RQ set data array\n"); 8023 goto out_error; 8024 } 8025 } 8026 } 8027 8028 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8029 8030 /* Create HBA Event Queues (EQs) */ 8031 for (idx = 0; idx < io_channel; idx++) { 8032 /* Create EQs */ 8033 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8034 phba->sli4_hba.eq_ecount); 8035 if (!qdesc) { 8036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8037 "0497 Failed allocate EQ (%d)\n", idx); 8038 goto out_error; 8039 } 8040 phba->sli4_hba.hba_eq[idx] = qdesc; 8041 } 8042 8043 /* FCP and NVME io channels are not required to be balanced */ 8044 8045 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8046 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8047 goto out_error; 8048 8049 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8050 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8051 goto out_error; 8052 8053 if (phba->nvmet_support) { 8054 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8055 qdesc = lpfc_sli4_queue_alloc(phba, 8056 phba->sli4_hba.cq_esize, 8057 phba->sli4_hba.cq_ecount); 8058 if (!qdesc) { 8059 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8060 "3142 Failed allocate NVME " 8061 "CQ Set (%d)\n", idx); 8062 goto out_error; 8063 } 8064 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8065 } 8066 } 8067 8068 /* 8069 * Create Slow Path Completion Queues (CQs) 8070 */ 8071 8072 /* Create slow-path Mailbox Command Complete Queue */ 8073 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8074 phba->sli4_hba.cq_ecount); 8075 if (!qdesc) { 8076 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8077 "0500 Failed allocate slow-path mailbox CQ\n"); 8078 goto out_error; 8079 } 8080 phba->sli4_hba.mbx_cq = qdesc; 8081 8082 /* Create slow-path ELS Complete Queue */ 8083 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8084 phba->sli4_hba.cq_ecount); 8085 if (!qdesc) { 8086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8087 "0501 Failed allocate slow-path ELS CQ\n"); 8088 goto out_error; 8089 } 8090 phba->sli4_hba.els_cq = qdesc; 8091 8092 8093 /* 8094 * Create Slow Path Work Queues (WQs) 8095 */ 8096 8097 /* Create Mailbox Command Queue */ 8098 8099 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8100 phba->sli4_hba.mq_ecount); 8101 if (!qdesc) { 8102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8103 "0505 Failed allocate slow-path MQ\n"); 8104 goto out_error; 8105 } 8106 phba->sli4_hba.mbx_wq = qdesc; 8107 8108 /* 8109 * Create ELS Work Queues 8110 */ 8111 8112 /* Create slow-path ELS Work Queue */ 8113 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8114 phba->sli4_hba.wq_ecount); 8115 if (!qdesc) { 8116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8117 "0504 Failed allocate slow-path ELS WQ\n"); 8118 goto out_error; 8119 } 8120 phba->sli4_hba.els_wq = qdesc; 8121 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8122 8123 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8124 /* Create NVME LS Complete Queue */ 8125 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8126 phba->sli4_hba.cq_ecount); 8127 if (!qdesc) { 8128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8129 "6079 Failed allocate NVME LS CQ\n"); 8130 goto out_error; 8131 } 8132 phba->sli4_hba.nvmels_cq = qdesc; 8133 8134 /* Create NVME LS Work Queue */ 8135 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8136 phba->sli4_hba.wq_ecount); 8137 if (!qdesc) { 8138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8139 "6080 Failed allocate NVME LS WQ\n"); 8140 goto out_error; 8141 } 8142 phba->sli4_hba.nvmels_wq = qdesc; 8143 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8144 } 8145 8146 /* 8147 * Create Receive Queue (RQ) 8148 */ 8149 8150 /* Create Receive Queue for header */ 8151 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8152 phba->sli4_hba.rq_ecount); 8153 if (!qdesc) { 8154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8155 "0506 Failed allocate receive HRQ\n"); 8156 goto out_error; 8157 } 8158 phba->sli4_hba.hdr_rq = qdesc; 8159 8160 /* Create Receive Queue for data */ 8161 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8162 phba->sli4_hba.rq_ecount); 8163 if (!qdesc) { 8164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8165 "0507 Failed allocate receive DRQ\n"); 8166 goto out_error; 8167 } 8168 phba->sli4_hba.dat_rq = qdesc; 8169 8170 if (phba->nvmet_support) { 8171 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8172 /* Create NVMET Receive Queue for header */ 8173 qdesc = lpfc_sli4_queue_alloc(phba, 8174 phba->sli4_hba.rq_esize, 8175 phba->sli4_hba.rq_ecount); 8176 if (!qdesc) { 8177 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8178 "3146 Failed allocate " 8179 "receive HRQ\n"); 8180 goto out_error; 8181 } 8182 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8183 8184 /* Only needed for header of RQ pair */ 8185 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8186 GFP_KERNEL); 8187 if (qdesc->rqbp == NULL) { 8188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8189 "6131 Failed allocate " 8190 "Header RQBP\n"); 8191 goto out_error; 8192 } 8193 8194 /* Create NVMET Receive Queue for data */ 8195 qdesc = lpfc_sli4_queue_alloc(phba, 8196 phba->sli4_hba.rq_esize, 8197 phba->sli4_hba.rq_ecount); 8198 if (!qdesc) { 8199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8200 "3156 Failed allocate " 8201 "receive DRQ\n"); 8202 goto out_error; 8203 } 8204 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8205 } 8206 } 8207 8208 /* Create the Queues needed for Flash Optimized Fabric operations */ 8209 if (phba->cfg_fof) 8210 lpfc_fof_queue_create(phba); 8211 return 0; 8212 8213 out_error: 8214 lpfc_sli4_queue_destroy(phba); 8215 return -ENOMEM; 8216 } 8217 8218 static inline void 8219 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8220 { 8221 if (*qp != NULL) { 8222 lpfc_sli4_queue_free(*qp); 8223 *qp = NULL; 8224 } 8225 } 8226 8227 static inline void 8228 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8229 { 8230 int idx; 8231 8232 if (*qs == NULL) 8233 return; 8234 8235 for (idx = 0; idx < max; idx++) 8236 __lpfc_sli4_release_queue(&(*qs)[idx]); 8237 8238 kfree(*qs); 8239 *qs = NULL; 8240 } 8241 8242 static inline void 8243 lpfc_sli4_release_queue_map(uint16_t **qmap) 8244 { 8245 if (*qmap != NULL) { 8246 kfree(*qmap); 8247 *qmap = NULL; 8248 } 8249 } 8250 8251 /** 8252 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8253 * @phba: pointer to lpfc hba data structure. 8254 * 8255 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8256 * operation. 8257 * 8258 * Return codes 8259 * 0 - successful 8260 * -ENOMEM - No available memory 8261 * -EIO - The mailbox failed to complete successfully. 8262 **/ 8263 void 8264 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8265 { 8266 if (phba->cfg_fof) 8267 lpfc_fof_queue_destroy(phba); 8268 8269 /* Release HBA eqs */ 8270 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8271 8272 /* Release FCP cqs */ 8273 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8274 phba->cfg_fcp_io_channel); 8275 8276 /* Release FCP wqs */ 8277 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8278 phba->cfg_fcp_io_channel); 8279 8280 /* Release FCP CQ mapping array */ 8281 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8282 8283 /* Release NVME cqs */ 8284 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8285 phba->cfg_nvme_io_channel); 8286 8287 /* Release NVME wqs */ 8288 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8289 phba->cfg_nvme_io_channel); 8290 8291 /* Release NVME CQ mapping array */ 8292 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8293 8294 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8295 phba->cfg_nvmet_mrq); 8296 8297 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8298 phba->cfg_nvmet_mrq); 8299 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8300 phba->cfg_nvmet_mrq); 8301 8302 /* Release mailbox command work queue */ 8303 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8304 8305 /* Release ELS work queue */ 8306 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8307 8308 /* Release ELS work queue */ 8309 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8310 8311 /* Release unsolicited receive queue */ 8312 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8313 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8314 8315 /* Release ELS complete queue */ 8316 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8317 8318 /* Release NVME LS complete queue */ 8319 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8320 8321 /* Release mailbox command complete queue */ 8322 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8323 8324 /* Everything on this list has been freed */ 8325 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8326 } 8327 8328 int 8329 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq, 8330 struct lpfc_queue *drq, int count) 8331 { 8332 int rc, i; 8333 struct lpfc_rqe hrqe; 8334 struct lpfc_rqe drqe; 8335 struct lpfc_rqb *rqbp; 8336 struct rqb_dmabuf *rqb_buffer; 8337 LIST_HEAD(rqb_buf_list); 8338 8339 rqbp = hrq->rqbp; 8340 for (i = 0; i < count; i++) { 8341 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba); 8342 if (!rqb_buffer) 8343 break; 8344 rqb_buffer->hrq = hrq; 8345 rqb_buffer->drq = drq; 8346 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list); 8347 } 8348 while (!list_empty(&rqb_buf_list)) { 8349 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf, 8350 hbuf.list); 8351 8352 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys); 8353 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys); 8354 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys); 8355 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys); 8356 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe); 8357 if (rc < 0) { 8358 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8359 } else { 8360 list_add_tail(&rqb_buffer->hbuf.list, 8361 &rqbp->rqb_buffer_list); 8362 rqbp->buffer_count++; 8363 } 8364 } 8365 return 1; 8366 } 8367 8368 int 8369 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8370 { 8371 struct lpfc_rqb *rqbp; 8372 struct lpfc_dmabuf *h_buf; 8373 struct rqb_dmabuf *rqb_buffer; 8374 8375 rqbp = rq->rqbp; 8376 while (!list_empty(&rqbp->rqb_buffer_list)) { 8377 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8378 struct lpfc_dmabuf, list); 8379 8380 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8381 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8382 rqbp->buffer_count--; 8383 } 8384 return 1; 8385 } 8386 8387 static int 8388 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8389 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8390 int qidx, uint32_t qtype) 8391 { 8392 struct lpfc_sli_ring *pring; 8393 int rc; 8394 8395 if (!eq || !cq || !wq) { 8396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8397 "6085 Fast-path %s (%d) not allocated\n", 8398 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8399 return -ENOMEM; 8400 } 8401 8402 /* create the Cq first */ 8403 rc = lpfc_cq_create(phba, cq, eq, 8404 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8405 if (rc) { 8406 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8407 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8408 qidx, (uint32_t)rc); 8409 return rc; 8410 } 8411 8412 if (qtype != LPFC_MBOX) { 8413 /* Setup nvme_cq_map for fast lookup */ 8414 if (cq_map) 8415 *cq_map = cq->queue_id; 8416 8417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8418 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8419 qidx, cq->queue_id, qidx, eq->queue_id); 8420 8421 /* create the wq */ 8422 rc = lpfc_wq_create(phba, wq, cq, qtype); 8423 if (rc) { 8424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8425 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8426 qidx, (uint32_t)rc); 8427 /* no need to tear down cq - caller will do so */ 8428 return rc; 8429 } 8430 8431 /* Bind this CQ/WQ to the NVME ring */ 8432 pring = wq->pring; 8433 pring->sli.sli4.wqp = (void *)wq; 8434 cq->pring = pring; 8435 8436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8437 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8438 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8439 } else { 8440 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8441 if (rc) { 8442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8443 "0539 Failed setup of slow-path MQ: " 8444 "rc = 0x%x\n", rc); 8445 /* no need to tear down cq - caller will do so */ 8446 return rc; 8447 } 8448 8449 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8450 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8451 phba->sli4_hba.mbx_wq->queue_id, 8452 phba->sli4_hba.mbx_cq->queue_id); 8453 } 8454 8455 return 0; 8456 } 8457 8458 /** 8459 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8460 * @phba: pointer to lpfc hba data structure. 8461 * 8462 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8463 * operation. 8464 * 8465 * Return codes 8466 * 0 - successful 8467 * -ENOMEM - No available memory 8468 * -EIO - The mailbox failed to complete successfully. 8469 **/ 8470 int 8471 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8472 { 8473 uint32_t shdr_status, shdr_add_status; 8474 union lpfc_sli4_cfg_shdr *shdr; 8475 LPFC_MBOXQ_t *mboxq; 8476 int qidx; 8477 uint32_t length, io_channel; 8478 int rc = -ENOMEM; 8479 8480 /* Check for dual-ULP support */ 8481 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8482 if (!mboxq) { 8483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8484 "3249 Unable to allocate memory for " 8485 "QUERY_FW_CFG mailbox command\n"); 8486 return -ENOMEM; 8487 } 8488 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8489 sizeof(struct lpfc_sli4_cfg_mhdr)); 8490 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8491 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8492 length, LPFC_SLI4_MBX_EMBED); 8493 8494 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8495 8496 shdr = (union lpfc_sli4_cfg_shdr *) 8497 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8498 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8499 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8500 if (shdr_status || shdr_add_status || rc) { 8501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8502 "3250 QUERY_FW_CFG mailbox failed with status " 8503 "x%x add_status x%x, mbx status x%x\n", 8504 shdr_status, shdr_add_status, rc); 8505 if (rc != MBX_TIMEOUT) 8506 mempool_free(mboxq, phba->mbox_mem_pool); 8507 rc = -ENXIO; 8508 goto out_error; 8509 } 8510 8511 phba->sli4_hba.fw_func_mode = 8512 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8513 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8514 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8515 phba->sli4_hba.physical_port = 8516 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8517 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8518 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8519 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8520 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8521 8522 if (rc != MBX_TIMEOUT) 8523 mempool_free(mboxq, phba->mbox_mem_pool); 8524 8525 /* 8526 * Set up HBA Event Queues (EQs) 8527 */ 8528 io_channel = phba->io_channel_irqs; 8529 8530 /* Set up HBA event queue */ 8531 if (io_channel && !phba->sli4_hba.hba_eq) { 8532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8533 "3147 Fast-path EQs not allocated\n"); 8534 rc = -ENOMEM; 8535 goto out_error; 8536 } 8537 for (qidx = 0; qidx < io_channel; qidx++) { 8538 if (!phba->sli4_hba.hba_eq[qidx]) { 8539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8540 "0522 Fast-path EQ (%d) not " 8541 "allocated\n", qidx); 8542 rc = -ENOMEM; 8543 goto out_destroy; 8544 } 8545 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8546 phba->cfg_fcp_imax); 8547 if (rc) { 8548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8549 "0523 Failed setup of fast-path EQ " 8550 "(%d), rc = 0x%x\n", qidx, 8551 (uint32_t)rc); 8552 goto out_destroy; 8553 } 8554 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8555 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8556 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8557 } 8558 8559 if (phba->cfg_nvme_io_channel) { 8560 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8562 "6084 Fast-path NVME %s array not allocated\n", 8563 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8564 rc = -ENOMEM; 8565 goto out_destroy; 8566 } 8567 8568 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8569 rc = lpfc_create_wq_cq(phba, 8570 phba->sli4_hba.hba_eq[ 8571 qidx % io_channel], 8572 phba->sli4_hba.nvme_cq[qidx], 8573 phba->sli4_hba.nvme_wq[qidx], 8574 &phba->sli4_hba.nvme_cq_map[qidx], 8575 qidx, LPFC_NVME); 8576 if (rc) { 8577 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8578 "6123 Failed to setup fastpath " 8579 "NVME WQ/CQ (%d), rc = 0x%x\n", 8580 qidx, (uint32_t)rc); 8581 goto out_destroy; 8582 } 8583 } 8584 } 8585 8586 if (phba->cfg_fcp_io_channel) { 8587 /* Set up fast-path FCP Response Complete Queue */ 8588 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8590 "3148 Fast-path FCP %s array not allocated\n", 8591 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8592 rc = -ENOMEM; 8593 goto out_destroy; 8594 } 8595 8596 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8597 rc = lpfc_create_wq_cq(phba, 8598 phba->sli4_hba.hba_eq[ 8599 qidx % io_channel], 8600 phba->sli4_hba.fcp_cq[qidx], 8601 phba->sli4_hba.fcp_wq[qidx], 8602 &phba->sli4_hba.fcp_cq_map[qidx], 8603 qidx, LPFC_FCP); 8604 if (rc) { 8605 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8606 "0535 Failed to setup fastpath " 8607 "FCP WQ/CQ (%d), rc = 0x%x\n", 8608 qidx, (uint32_t)rc); 8609 goto out_destroy; 8610 } 8611 } 8612 } 8613 8614 /* 8615 * Set up Slow Path Complete Queues (CQs) 8616 */ 8617 8618 /* Set up slow-path MBOX CQ/MQ */ 8619 8620 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8622 "0528 %s not allocated\n", 8623 phba->sli4_hba.mbx_cq ? 8624 "Mailbox WQ" : "Mailbox CQ"); 8625 rc = -ENOMEM; 8626 goto out_destroy; 8627 } 8628 8629 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8630 phba->sli4_hba.mbx_cq, 8631 phba->sli4_hba.mbx_wq, 8632 NULL, 0, LPFC_MBOX); 8633 if (rc) { 8634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8635 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8636 (uint32_t)rc); 8637 goto out_destroy; 8638 } 8639 if (phba->nvmet_support) { 8640 if (!phba->sli4_hba.nvmet_cqset) { 8641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8642 "3165 Fast-path NVME CQ Set " 8643 "array not allocated\n"); 8644 rc = -ENOMEM; 8645 goto out_destroy; 8646 } 8647 if (phba->cfg_nvmet_mrq > 1) { 8648 rc = lpfc_cq_create_set(phba, 8649 phba->sli4_hba.nvmet_cqset, 8650 phba->sli4_hba.hba_eq, 8651 LPFC_WCQ, LPFC_NVMET); 8652 if (rc) { 8653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8654 "3164 Failed setup of NVME CQ " 8655 "Set, rc = 0x%x\n", 8656 (uint32_t)rc); 8657 goto out_destroy; 8658 } 8659 } else { 8660 /* Set up NVMET Receive Complete Queue */ 8661 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8662 phba->sli4_hba.hba_eq[0], 8663 LPFC_WCQ, LPFC_NVMET); 8664 if (rc) { 8665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8666 "6089 Failed setup NVMET CQ: " 8667 "rc = 0x%x\n", (uint32_t)rc); 8668 goto out_destroy; 8669 } 8670 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8671 "6090 NVMET CQ setup: cq-id=%d, " 8672 "parent eq-id=%d\n", 8673 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8674 phba->sli4_hba.hba_eq[0]->queue_id); 8675 } 8676 } 8677 8678 /* Set up slow-path ELS WQ/CQ */ 8679 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8681 "0530 ELS %s not allocated\n", 8682 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8683 rc = -ENOMEM; 8684 goto out_destroy; 8685 } 8686 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8687 phba->sli4_hba.els_cq, 8688 phba->sli4_hba.els_wq, 8689 NULL, 0, LPFC_ELS); 8690 if (rc) { 8691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8692 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8693 (uint32_t)rc); 8694 goto out_destroy; 8695 } 8696 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8697 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8698 phba->sli4_hba.els_wq->queue_id, 8699 phba->sli4_hba.els_cq->queue_id); 8700 8701 if (phba->cfg_nvme_io_channel) { 8702 /* Set up NVME LS Complete Queue */ 8703 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8705 "6091 LS %s not allocated\n", 8706 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8707 rc = -ENOMEM; 8708 goto out_destroy; 8709 } 8710 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8711 phba->sli4_hba.nvmels_cq, 8712 phba->sli4_hba.nvmels_wq, 8713 NULL, 0, LPFC_NVME_LS); 8714 if (rc) { 8715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8716 "0529 Failed setup of NVVME LS WQ/CQ: " 8717 "rc = 0x%x\n", (uint32_t)rc); 8718 goto out_destroy; 8719 } 8720 8721 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8722 "6096 ELS WQ setup: wq-id=%d, " 8723 "parent cq-id=%d\n", 8724 phba->sli4_hba.nvmels_wq->queue_id, 8725 phba->sli4_hba.nvmels_cq->queue_id); 8726 } 8727 8728 /* 8729 * Create NVMET Receive Queue (RQ) 8730 */ 8731 if (phba->nvmet_support) { 8732 if ((!phba->sli4_hba.nvmet_cqset) || 8733 (!phba->sli4_hba.nvmet_mrq_hdr) || 8734 (!phba->sli4_hba.nvmet_mrq_data)) { 8735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8736 "6130 MRQ CQ Queues not " 8737 "allocated\n"); 8738 rc = -ENOMEM; 8739 goto out_destroy; 8740 } 8741 if (phba->cfg_nvmet_mrq > 1) { 8742 rc = lpfc_mrq_create(phba, 8743 phba->sli4_hba.nvmet_mrq_hdr, 8744 phba->sli4_hba.nvmet_mrq_data, 8745 phba->sli4_hba.nvmet_cqset, 8746 LPFC_NVMET); 8747 if (rc) { 8748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8749 "6098 Failed setup of NVMET " 8750 "MRQ: rc = 0x%x\n", 8751 (uint32_t)rc); 8752 goto out_destroy; 8753 } 8754 8755 } else { 8756 rc = lpfc_rq_create(phba, 8757 phba->sli4_hba.nvmet_mrq_hdr[0], 8758 phba->sli4_hba.nvmet_mrq_data[0], 8759 phba->sli4_hba.nvmet_cqset[0], 8760 LPFC_NVMET); 8761 if (rc) { 8762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8763 "6057 Failed setup of NVMET " 8764 "Receive Queue: rc = 0x%x\n", 8765 (uint32_t)rc); 8766 goto out_destroy; 8767 } 8768 8769 lpfc_printf_log( 8770 phba, KERN_INFO, LOG_INIT, 8771 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8772 "dat-rq-id=%d parent cq-id=%d\n", 8773 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8774 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8775 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8776 8777 } 8778 } 8779 8780 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8782 "0540 Receive Queue not allocated\n"); 8783 rc = -ENOMEM; 8784 goto out_destroy; 8785 } 8786 8787 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 8788 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 8789 8790 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8791 phba->sli4_hba.els_cq, LPFC_USOL); 8792 if (rc) { 8793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8794 "0541 Failed setup of Receive Queue: " 8795 "rc = 0x%x\n", (uint32_t)rc); 8796 goto out_destroy; 8797 } 8798 8799 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8800 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8801 "parent cq-id=%d\n", 8802 phba->sli4_hba.hdr_rq->queue_id, 8803 phba->sli4_hba.dat_rq->queue_id, 8804 phba->sli4_hba.els_cq->queue_id); 8805 8806 if (phba->cfg_fof) { 8807 rc = lpfc_fof_queue_setup(phba); 8808 if (rc) { 8809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8810 "0549 Failed setup of FOF Queues: " 8811 "rc = 0x%x\n", rc); 8812 goto out_destroy; 8813 } 8814 } 8815 8816 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8817 lpfc_modify_hba_eq_delay(phba, qidx); 8818 8819 return 0; 8820 8821 out_destroy: 8822 lpfc_sli4_queue_unset(phba); 8823 out_error: 8824 return rc; 8825 } 8826 8827 /** 8828 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8829 * @phba: pointer to lpfc hba data structure. 8830 * 8831 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8832 * operation. 8833 * 8834 * Return codes 8835 * 0 - successful 8836 * -ENOMEM - No available memory 8837 * -EIO - The mailbox failed to complete successfully. 8838 **/ 8839 void 8840 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8841 { 8842 int qidx; 8843 8844 /* Unset the queues created for Flash Optimized Fabric operations */ 8845 if (phba->cfg_fof) 8846 lpfc_fof_queue_destroy(phba); 8847 8848 /* Unset mailbox command work queue */ 8849 if (phba->sli4_hba.mbx_wq) 8850 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8851 8852 /* Unset NVME LS work queue */ 8853 if (phba->sli4_hba.nvmels_wq) 8854 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8855 8856 /* Unset ELS work queue */ 8857 if (phba->sli4_hba.els_wq) 8858 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8859 8860 /* Unset unsolicited receive queue */ 8861 if (phba->sli4_hba.hdr_rq) 8862 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8863 phba->sli4_hba.dat_rq); 8864 8865 /* Unset FCP work queue */ 8866 if (phba->sli4_hba.fcp_wq) 8867 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8868 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8869 8870 /* Unset NVME work queue */ 8871 if (phba->sli4_hba.nvme_wq) { 8872 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8873 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8874 } 8875 8876 /* Unset mailbox command complete queue */ 8877 if (phba->sli4_hba.mbx_cq) 8878 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8879 8880 /* Unset ELS complete queue */ 8881 if (phba->sli4_hba.els_cq) 8882 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8883 8884 /* Unset NVME LS complete queue */ 8885 if (phba->sli4_hba.nvmels_cq) 8886 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8887 8888 /* Unset NVME response complete queue */ 8889 if (phba->sli4_hba.nvme_cq) 8890 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8891 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8892 8893 /* Unset NVMET MRQ queue */ 8894 if (phba->sli4_hba.nvmet_mrq_hdr) { 8895 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8896 lpfc_rq_destroy(phba, 8897 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8898 phba->sli4_hba.nvmet_mrq_data[qidx]); 8899 } 8900 8901 /* Unset NVMET CQ Set complete queue */ 8902 if (phba->sli4_hba.nvmet_cqset) { 8903 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8904 lpfc_cq_destroy(phba, 8905 phba->sli4_hba.nvmet_cqset[qidx]); 8906 } 8907 8908 /* Unset FCP response complete queue */ 8909 if (phba->sli4_hba.fcp_cq) 8910 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8911 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 8912 8913 /* Unset fast-path event queue */ 8914 if (phba->sli4_hba.hba_eq) 8915 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 8916 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 8917 } 8918 8919 /** 8920 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 8921 * @phba: pointer to lpfc hba data structure. 8922 * 8923 * This routine is invoked to allocate and set up a pool of completion queue 8924 * events. The body of the completion queue event is a completion queue entry 8925 * CQE. For now, this pool is used for the interrupt service routine to queue 8926 * the following HBA completion queue events for the worker thread to process: 8927 * - Mailbox asynchronous events 8928 * - Receive queue completion unsolicited events 8929 * Later, this can be used for all the slow-path events. 8930 * 8931 * Return codes 8932 * 0 - successful 8933 * -ENOMEM - No available memory 8934 **/ 8935 static int 8936 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 8937 { 8938 struct lpfc_cq_event *cq_event; 8939 int i; 8940 8941 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 8942 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 8943 if (!cq_event) 8944 goto out_pool_create_fail; 8945 list_add_tail(&cq_event->list, 8946 &phba->sli4_hba.sp_cqe_event_pool); 8947 } 8948 return 0; 8949 8950 out_pool_create_fail: 8951 lpfc_sli4_cq_event_pool_destroy(phba); 8952 return -ENOMEM; 8953 } 8954 8955 /** 8956 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 8957 * @phba: pointer to lpfc hba data structure. 8958 * 8959 * This routine is invoked to free the pool of completion queue events at 8960 * driver unload time. Note that, it is the responsibility of the driver 8961 * cleanup routine to free all the outstanding completion-queue events 8962 * allocated from this pool back into the pool before invoking this routine 8963 * to destroy the pool. 8964 **/ 8965 static void 8966 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 8967 { 8968 struct lpfc_cq_event *cq_event, *next_cq_event; 8969 8970 list_for_each_entry_safe(cq_event, next_cq_event, 8971 &phba->sli4_hba.sp_cqe_event_pool, list) { 8972 list_del(&cq_event->list); 8973 kfree(cq_event); 8974 } 8975 } 8976 8977 /** 8978 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8979 * @phba: pointer to lpfc hba data structure. 8980 * 8981 * This routine is the lock free version of the API invoked to allocate a 8982 * completion-queue event from the free pool. 8983 * 8984 * Return: Pointer to the newly allocated completion-queue event if successful 8985 * NULL otherwise. 8986 **/ 8987 struct lpfc_cq_event * 8988 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 8989 { 8990 struct lpfc_cq_event *cq_event = NULL; 8991 8992 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 8993 struct lpfc_cq_event, list); 8994 return cq_event; 8995 } 8996 8997 /** 8998 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8999 * @phba: pointer to lpfc hba data structure. 9000 * 9001 * This routine is the lock version of the API invoked to allocate a 9002 * completion-queue event from the free pool. 9003 * 9004 * Return: Pointer to the newly allocated completion-queue event if successful 9005 * NULL otherwise. 9006 **/ 9007 struct lpfc_cq_event * 9008 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9009 { 9010 struct lpfc_cq_event *cq_event; 9011 unsigned long iflags; 9012 9013 spin_lock_irqsave(&phba->hbalock, iflags); 9014 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9015 spin_unlock_irqrestore(&phba->hbalock, iflags); 9016 return cq_event; 9017 } 9018 9019 /** 9020 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9021 * @phba: pointer to lpfc hba data structure. 9022 * @cq_event: pointer to the completion queue event to be freed. 9023 * 9024 * This routine is the lock free version of the API invoked to release a 9025 * completion-queue event back into the free pool. 9026 **/ 9027 void 9028 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9029 struct lpfc_cq_event *cq_event) 9030 { 9031 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9032 } 9033 9034 /** 9035 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9036 * @phba: pointer to lpfc hba data structure. 9037 * @cq_event: pointer to the completion queue event to be freed. 9038 * 9039 * This routine is the lock version of the API invoked to release a 9040 * completion-queue event back into the free pool. 9041 **/ 9042 void 9043 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9044 struct lpfc_cq_event *cq_event) 9045 { 9046 unsigned long iflags; 9047 spin_lock_irqsave(&phba->hbalock, iflags); 9048 __lpfc_sli4_cq_event_release(phba, cq_event); 9049 spin_unlock_irqrestore(&phba->hbalock, iflags); 9050 } 9051 9052 /** 9053 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9054 * @phba: pointer to lpfc hba data structure. 9055 * 9056 * This routine is to free all the pending completion-queue events to the 9057 * back into the free pool for device reset. 9058 **/ 9059 static void 9060 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9061 { 9062 LIST_HEAD(cqelist); 9063 struct lpfc_cq_event *cqe; 9064 unsigned long iflags; 9065 9066 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9067 spin_lock_irqsave(&phba->hbalock, iflags); 9068 /* Pending FCP XRI abort events */ 9069 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9070 &cqelist); 9071 /* Pending ELS XRI abort events */ 9072 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9073 &cqelist); 9074 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9075 /* Pending NVME XRI abort events */ 9076 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9077 &cqelist); 9078 } 9079 /* Pending asynnc events */ 9080 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9081 &cqelist); 9082 spin_unlock_irqrestore(&phba->hbalock, iflags); 9083 9084 while (!list_empty(&cqelist)) { 9085 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9086 lpfc_sli4_cq_event_release(phba, cqe); 9087 } 9088 } 9089 9090 /** 9091 * lpfc_pci_function_reset - Reset pci function. 9092 * @phba: pointer to lpfc hba data structure. 9093 * 9094 * This routine is invoked to request a PCI function reset. It will destroys 9095 * all resources assigned to the PCI function which originates this request. 9096 * 9097 * Return codes 9098 * 0 - successful 9099 * -ENOMEM - No available memory 9100 * -EIO - The mailbox failed to complete successfully. 9101 **/ 9102 int 9103 lpfc_pci_function_reset(struct lpfc_hba *phba) 9104 { 9105 LPFC_MBOXQ_t *mboxq; 9106 uint32_t rc = 0, if_type; 9107 uint32_t shdr_status, shdr_add_status; 9108 uint32_t rdy_chk; 9109 uint32_t port_reset = 0; 9110 union lpfc_sli4_cfg_shdr *shdr; 9111 struct lpfc_register reg_data; 9112 uint16_t devid; 9113 9114 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9115 switch (if_type) { 9116 case LPFC_SLI_INTF_IF_TYPE_0: 9117 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9118 GFP_KERNEL); 9119 if (!mboxq) { 9120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9121 "0494 Unable to allocate memory for " 9122 "issuing SLI_FUNCTION_RESET mailbox " 9123 "command\n"); 9124 return -ENOMEM; 9125 } 9126 9127 /* Setup PCI function reset mailbox-ioctl command */ 9128 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9129 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9130 LPFC_SLI4_MBX_EMBED); 9131 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9132 shdr = (union lpfc_sli4_cfg_shdr *) 9133 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9134 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9135 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9136 &shdr->response); 9137 if (rc != MBX_TIMEOUT) 9138 mempool_free(mboxq, phba->mbox_mem_pool); 9139 if (shdr_status || shdr_add_status || rc) { 9140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9141 "0495 SLI_FUNCTION_RESET mailbox " 9142 "failed with status x%x add_status x%x," 9143 " mbx status x%x\n", 9144 shdr_status, shdr_add_status, rc); 9145 rc = -ENXIO; 9146 } 9147 break; 9148 case LPFC_SLI_INTF_IF_TYPE_2: 9149 wait: 9150 /* 9151 * Poll the Port Status Register and wait for RDY for 9152 * up to 30 seconds. If the port doesn't respond, treat 9153 * it as an error. 9154 */ 9155 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9156 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9157 STATUSregaddr, ®_data.word0)) { 9158 rc = -ENODEV; 9159 goto out; 9160 } 9161 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9162 break; 9163 msleep(20); 9164 } 9165 9166 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9167 phba->work_status[0] = readl( 9168 phba->sli4_hba.u.if_type2.ERR1regaddr); 9169 phba->work_status[1] = readl( 9170 phba->sli4_hba.u.if_type2.ERR2regaddr); 9171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9172 "2890 Port not ready, port status reg " 9173 "0x%x error 1=0x%x, error 2=0x%x\n", 9174 reg_data.word0, 9175 phba->work_status[0], 9176 phba->work_status[1]); 9177 rc = -ENODEV; 9178 goto out; 9179 } 9180 9181 if (!port_reset) { 9182 /* 9183 * Reset the port now 9184 */ 9185 reg_data.word0 = 0; 9186 bf_set(lpfc_sliport_ctrl_end, ®_data, 9187 LPFC_SLIPORT_LITTLE_ENDIAN); 9188 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9189 LPFC_SLIPORT_INIT_PORT); 9190 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9191 CTRLregaddr); 9192 /* flush */ 9193 pci_read_config_word(phba->pcidev, 9194 PCI_DEVICE_ID, &devid); 9195 9196 port_reset = 1; 9197 msleep(20); 9198 goto wait; 9199 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9200 rc = -ENODEV; 9201 goto out; 9202 } 9203 break; 9204 9205 case LPFC_SLI_INTF_IF_TYPE_1: 9206 default: 9207 break; 9208 } 9209 9210 out: 9211 /* Catch the not-ready port failure after a port reset. */ 9212 if (rc) { 9213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9214 "3317 HBA not functional: IP Reset Failed " 9215 "try: echo fw_reset > board_mode\n"); 9216 rc = -ENODEV; 9217 } 9218 9219 return rc; 9220 } 9221 9222 /** 9223 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9224 * @phba: pointer to lpfc hba data structure. 9225 * 9226 * This routine is invoked to set up the PCI device memory space for device 9227 * with SLI-4 interface spec. 9228 * 9229 * Return codes 9230 * 0 - successful 9231 * other values - error 9232 **/ 9233 static int 9234 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9235 { 9236 struct pci_dev *pdev; 9237 unsigned long bar0map_len, bar1map_len, bar2map_len; 9238 int error = -ENODEV; 9239 uint32_t if_type; 9240 9241 /* Obtain PCI device reference */ 9242 if (!phba->pcidev) 9243 return error; 9244 else 9245 pdev = phba->pcidev; 9246 9247 /* Set the device DMA mask size */ 9248 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9249 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9250 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9251 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9252 return error; 9253 } 9254 } 9255 9256 /* 9257 * The BARs and register set definitions and offset locations are 9258 * dependent on the if_type. 9259 */ 9260 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9261 &phba->sli4_hba.sli_intf.word0)) { 9262 return error; 9263 } 9264 9265 /* There is no SLI3 failback for SLI4 devices. */ 9266 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9267 LPFC_SLI_INTF_VALID) { 9268 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9269 "2894 SLI_INTF reg contents invalid " 9270 "sli_intf reg 0x%x\n", 9271 phba->sli4_hba.sli_intf.word0); 9272 return error; 9273 } 9274 9275 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9276 /* 9277 * Get the bus address of SLI4 device Bar regions and the 9278 * number of bytes required by each mapping. The mapping of the 9279 * particular PCI BARs regions is dependent on the type of 9280 * SLI4 device. 9281 */ 9282 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9283 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9284 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9285 9286 /* 9287 * Map SLI4 PCI Config Space Register base to a kernel virtual 9288 * addr 9289 */ 9290 phba->sli4_hba.conf_regs_memmap_p = 9291 ioremap(phba->pci_bar0_map, bar0map_len); 9292 if (!phba->sli4_hba.conf_regs_memmap_p) { 9293 dev_printk(KERN_ERR, &pdev->dev, 9294 "ioremap failed for SLI4 PCI config " 9295 "registers.\n"); 9296 goto out; 9297 } 9298 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9299 /* Set up BAR0 PCI config space register memory map */ 9300 lpfc_sli4_bar0_register_memmap(phba, if_type); 9301 } else { 9302 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9303 bar0map_len = pci_resource_len(pdev, 1); 9304 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9305 dev_printk(KERN_ERR, &pdev->dev, 9306 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9307 goto out; 9308 } 9309 phba->sli4_hba.conf_regs_memmap_p = 9310 ioremap(phba->pci_bar0_map, bar0map_len); 9311 if (!phba->sli4_hba.conf_regs_memmap_p) { 9312 dev_printk(KERN_ERR, &pdev->dev, 9313 "ioremap failed for SLI4 PCI config " 9314 "registers.\n"); 9315 goto out; 9316 } 9317 lpfc_sli4_bar0_register_memmap(phba, if_type); 9318 } 9319 9320 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9321 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9322 /* 9323 * Map SLI4 if type 0 HBA Control Register base to a kernel 9324 * virtual address and setup the registers. 9325 */ 9326 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9327 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9328 phba->sli4_hba.ctrl_regs_memmap_p = 9329 ioremap(phba->pci_bar1_map, bar1map_len); 9330 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9331 dev_printk(KERN_ERR, &pdev->dev, 9332 "ioremap failed for SLI4 HBA control registers.\n"); 9333 goto out_iounmap_conf; 9334 } 9335 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9336 lpfc_sli4_bar1_register_memmap(phba); 9337 } 9338 9339 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9340 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9341 /* 9342 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9343 * virtual address and setup the registers. 9344 */ 9345 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9346 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9347 phba->sli4_hba.drbl_regs_memmap_p = 9348 ioremap(phba->pci_bar2_map, bar2map_len); 9349 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9350 dev_printk(KERN_ERR, &pdev->dev, 9351 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9352 goto out_iounmap_ctrl; 9353 } 9354 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9355 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9356 if (error) 9357 goto out_iounmap_all; 9358 } 9359 9360 return 0; 9361 9362 out_iounmap_all: 9363 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9364 out_iounmap_ctrl: 9365 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9366 out_iounmap_conf: 9367 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9368 out: 9369 return error; 9370 } 9371 9372 /** 9373 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9374 * @phba: pointer to lpfc hba data structure. 9375 * 9376 * This routine is invoked to unset the PCI device memory space for device 9377 * with SLI-4 interface spec. 9378 **/ 9379 static void 9380 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9381 { 9382 uint32_t if_type; 9383 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9384 9385 switch (if_type) { 9386 case LPFC_SLI_INTF_IF_TYPE_0: 9387 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9388 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9389 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9390 break; 9391 case LPFC_SLI_INTF_IF_TYPE_2: 9392 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9393 break; 9394 case LPFC_SLI_INTF_IF_TYPE_1: 9395 default: 9396 dev_printk(KERN_ERR, &phba->pcidev->dev, 9397 "FATAL - unsupported SLI4 interface type - %d\n", 9398 if_type); 9399 break; 9400 } 9401 } 9402 9403 /** 9404 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9405 * @phba: pointer to lpfc hba data structure. 9406 * 9407 * This routine is invoked to enable the MSI-X interrupt vectors to device 9408 * with SLI-3 interface specs. 9409 * 9410 * Return codes 9411 * 0 - successful 9412 * other values - error 9413 **/ 9414 static int 9415 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9416 { 9417 int rc; 9418 LPFC_MBOXQ_t *pmb; 9419 9420 /* Set up MSI-X multi-message vectors */ 9421 rc = pci_alloc_irq_vectors(phba->pcidev, 9422 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9423 if (rc < 0) { 9424 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9425 "0420 PCI enable MSI-X failed (%d)\n", rc); 9426 goto vec_fail_out; 9427 } 9428 9429 /* 9430 * Assign MSI-X vectors to interrupt handlers 9431 */ 9432 9433 /* vector-0 is associated to slow-path handler */ 9434 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9435 &lpfc_sli_sp_intr_handler, 0, 9436 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9437 if (rc) { 9438 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9439 "0421 MSI-X slow-path request_irq failed " 9440 "(%d)\n", rc); 9441 goto msi_fail_out; 9442 } 9443 9444 /* vector-1 is associated to fast-path handler */ 9445 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9446 &lpfc_sli_fp_intr_handler, 0, 9447 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9448 9449 if (rc) { 9450 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9451 "0429 MSI-X fast-path request_irq failed " 9452 "(%d)\n", rc); 9453 goto irq_fail_out; 9454 } 9455 9456 /* 9457 * Configure HBA MSI-X attention conditions to messages 9458 */ 9459 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9460 9461 if (!pmb) { 9462 rc = -ENOMEM; 9463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9464 "0474 Unable to allocate memory for issuing " 9465 "MBOX_CONFIG_MSI command\n"); 9466 goto mem_fail_out; 9467 } 9468 rc = lpfc_config_msi(phba, pmb); 9469 if (rc) 9470 goto mbx_fail_out; 9471 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9472 if (rc != MBX_SUCCESS) { 9473 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9474 "0351 Config MSI mailbox command failed, " 9475 "mbxCmd x%x, mbxStatus x%x\n", 9476 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9477 goto mbx_fail_out; 9478 } 9479 9480 /* Free memory allocated for mailbox command */ 9481 mempool_free(pmb, phba->mbox_mem_pool); 9482 return rc; 9483 9484 mbx_fail_out: 9485 /* Free memory allocated for mailbox command */ 9486 mempool_free(pmb, phba->mbox_mem_pool); 9487 9488 mem_fail_out: 9489 /* free the irq already requested */ 9490 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9491 9492 irq_fail_out: 9493 /* free the irq already requested */ 9494 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9495 9496 msi_fail_out: 9497 /* Unconfigure MSI-X capability structure */ 9498 pci_free_irq_vectors(phba->pcidev); 9499 9500 vec_fail_out: 9501 return rc; 9502 } 9503 9504 /** 9505 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9506 * @phba: pointer to lpfc hba data structure. 9507 * 9508 * This routine is invoked to enable the MSI interrupt mode to device with 9509 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9510 * enable the MSI vector. The device driver is responsible for calling the 9511 * request_irq() to register MSI vector with a interrupt the handler, which 9512 * is done in this function. 9513 * 9514 * Return codes 9515 * 0 - successful 9516 * other values - error 9517 */ 9518 static int 9519 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9520 { 9521 int rc; 9522 9523 rc = pci_enable_msi(phba->pcidev); 9524 if (!rc) 9525 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9526 "0462 PCI enable MSI mode success.\n"); 9527 else { 9528 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9529 "0471 PCI enable MSI mode failed (%d)\n", rc); 9530 return rc; 9531 } 9532 9533 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9534 0, LPFC_DRIVER_NAME, phba); 9535 if (rc) { 9536 pci_disable_msi(phba->pcidev); 9537 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9538 "0478 MSI request_irq failed (%d)\n", rc); 9539 } 9540 return rc; 9541 } 9542 9543 /** 9544 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9545 * @phba: pointer to lpfc hba data structure. 9546 * 9547 * This routine is invoked to enable device interrupt and associate driver's 9548 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9549 * spec. Depends on the interrupt mode configured to the driver, the driver 9550 * will try to fallback from the configured interrupt mode to an interrupt 9551 * mode which is supported by the platform, kernel, and device in the order 9552 * of: 9553 * MSI-X -> MSI -> IRQ. 9554 * 9555 * Return codes 9556 * 0 - successful 9557 * other values - error 9558 **/ 9559 static uint32_t 9560 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9561 { 9562 uint32_t intr_mode = LPFC_INTR_ERROR; 9563 int retval; 9564 9565 if (cfg_mode == 2) { 9566 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9567 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9568 if (!retval) { 9569 /* Now, try to enable MSI-X interrupt mode */ 9570 retval = lpfc_sli_enable_msix(phba); 9571 if (!retval) { 9572 /* Indicate initialization to MSI-X mode */ 9573 phba->intr_type = MSIX; 9574 intr_mode = 2; 9575 } 9576 } 9577 } 9578 9579 /* Fallback to MSI if MSI-X initialization failed */ 9580 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9581 retval = lpfc_sli_enable_msi(phba); 9582 if (!retval) { 9583 /* Indicate initialization to MSI mode */ 9584 phba->intr_type = MSI; 9585 intr_mode = 1; 9586 } 9587 } 9588 9589 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9590 if (phba->intr_type == NONE) { 9591 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9592 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9593 if (!retval) { 9594 /* Indicate initialization to INTx mode */ 9595 phba->intr_type = INTx; 9596 intr_mode = 0; 9597 } 9598 } 9599 return intr_mode; 9600 } 9601 9602 /** 9603 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9604 * @phba: pointer to lpfc hba data structure. 9605 * 9606 * This routine is invoked to disable device interrupt and disassociate the 9607 * driver's interrupt handler(s) from interrupt vector(s) to device with 9608 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9609 * release the interrupt vector(s) for the message signaled interrupt. 9610 **/ 9611 static void 9612 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9613 { 9614 int nr_irqs, i; 9615 9616 if (phba->intr_type == MSIX) 9617 nr_irqs = LPFC_MSIX_VECTORS; 9618 else 9619 nr_irqs = 1; 9620 9621 for (i = 0; i < nr_irqs; i++) 9622 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9623 pci_free_irq_vectors(phba->pcidev); 9624 9625 /* Reset interrupt management states */ 9626 phba->intr_type = NONE; 9627 phba->sli.slistat.sli_intr = 0; 9628 } 9629 9630 /** 9631 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9632 * @phba: pointer to lpfc hba data structure. 9633 * @vectors: number of msix vectors allocated. 9634 * 9635 * The routine will figure out the CPU affinity assignment for every 9636 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9637 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9638 * can be associated with. If the vector can be unquely associated with 9639 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9640 * In addition, the CPU to IO channel mapping will be calculated 9641 * and the phba->sli4_hba.cpu_map array will reflect this. 9642 */ 9643 static void 9644 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9645 { 9646 struct lpfc_vector_map_info *cpup; 9647 int index = 0; 9648 int vec = 0; 9649 int cpu; 9650 #ifdef CONFIG_X86 9651 struct cpuinfo_x86 *cpuinfo; 9652 #endif 9653 9654 /* Init cpu_map array */ 9655 memset(phba->sli4_hba.cpu_map, 0xff, 9656 (sizeof(struct lpfc_vector_map_info) * 9657 phba->sli4_hba.num_present_cpu)); 9658 9659 /* Update CPU map with physical id and core id of each CPU */ 9660 cpup = phba->sli4_hba.cpu_map; 9661 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9662 #ifdef CONFIG_X86 9663 cpuinfo = &cpu_data(cpu); 9664 cpup->phys_id = cpuinfo->phys_proc_id; 9665 cpup->core_id = cpuinfo->cpu_core_id; 9666 #else 9667 /* No distinction between CPUs for other platforms */ 9668 cpup->phys_id = 0; 9669 cpup->core_id = 0; 9670 #endif 9671 cpup->channel_id = index; /* For now round robin */ 9672 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9673 vec++; 9674 if (vec >= vectors) 9675 vec = 0; 9676 index++; 9677 if (index >= phba->cfg_fcp_io_channel) 9678 index = 0; 9679 cpup++; 9680 } 9681 } 9682 9683 9684 /** 9685 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9686 * @phba: pointer to lpfc hba data structure. 9687 * 9688 * This routine is invoked to enable the MSI-X interrupt vectors to device 9689 * with SLI-4 interface spec. 9690 * 9691 * Return codes 9692 * 0 - successful 9693 * other values - error 9694 **/ 9695 static int 9696 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9697 { 9698 int vectors, rc, index; 9699 9700 /* Set up MSI-X multi-message vectors */ 9701 vectors = phba->io_channel_irqs; 9702 if (phba->cfg_fof) 9703 vectors++; 9704 9705 rc = pci_alloc_irq_vectors(phba->pcidev, 9706 (phba->nvmet_support) ? 1 : 2, 9707 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9708 if (rc < 0) { 9709 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9710 "0484 PCI enable MSI-X failed (%d)\n", rc); 9711 goto vec_fail_out; 9712 } 9713 vectors = rc; 9714 9715 /* Assign MSI-X vectors to interrupt handlers */ 9716 for (index = 0; index < vectors; index++) { 9717 memset(&phba->sli4_hba.handler_name[index], 0, 16); 9718 snprintf((char *)&phba->sli4_hba.handler_name[index], 9719 LPFC_SLI4_HANDLER_NAME_SZ, 9720 LPFC_DRIVER_HANDLER_NAME"%d", index); 9721 9722 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9723 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9724 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9725 if (phba->cfg_fof && (index == (vectors - 1))) 9726 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9727 &lpfc_sli4_fof_intr_handler, 0, 9728 (char *)&phba->sli4_hba.handler_name[index], 9729 &phba->sli4_hba.hba_eq_hdl[index]); 9730 else 9731 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9732 &lpfc_sli4_hba_intr_handler, 0, 9733 (char *)&phba->sli4_hba.handler_name[index], 9734 &phba->sli4_hba.hba_eq_hdl[index]); 9735 if (rc) { 9736 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9737 "0486 MSI-X fast-path (%d) " 9738 "request_irq failed (%d)\n", index, rc); 9739 goto cfg_fail_out; 9740 } 9741 } 9742 9743 if (phba->cfg_fof) 9744 vectors--; 9745 9746 if (vectors != phba->io_channel_irqs) { 9747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9748 "3238 Reducing IO channels to match number of " 9749 "MSI-X vectors, requested %d got %d\n", 9750 phba->io_channel_irqs, vectors); 9751 if (phba->cfg_fcp_io_channel > vectors) 9752 phba->cfg_fcp_io_channel = vectors; 9753 if (phba->cfg_nvme_io_channel > vectors) 9754 phba->cfg_nvme_io_channel = vectors; 9755 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9756 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9757 else 9758 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9759 } 9760 lpfc_cpu_affinity_check(phba, vectors); 9761 9762 return rc; 9763 9764 cfg_fail_out: 9765 /* free the irq already requested */ 9766 for (--index; index >= 0; index--) 9767 free_irq(pci_irq_vector(phba->pcidev, index), 9768 &phba->sli4_hba.hba_eq_hdl[index]); 9769 9770 /* Unconfigure MSI-X capability structure */ 9771 pci_free_irq_vectors(phba->pcidev); 9772 9773 vec_fail_out: 9774 return rc; 9775 } 9776 9777 /** 9778 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9779 * @phba: pointer to lpfc hba data structure. 9780 * 9781 * This routine is invoked to enable the MSI interrupt mode to device with 9782 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9783 * to enable the MSI vector. The device driver is responsible for calling 9784 * the request_irq() to register MSI vector with a interrupt the handler, 9785 * which is done in this function. 9786 * 9787 * Return codes 9788 * 0 - successful 9789 * other values - error 9790 **/ 9791 static int 9792 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9793 { 9794 int rc, index; 9795 9796 rc = pci_enable_msi(phba->pcidev); 9797 if (!rc) 9798 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9799 "0487 PCI enable MSI mode success.\n"); 9800 else { 9801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9802 "0488 PCI enable MSI mode failed (%d)\n", rc); 9803 return rc; 9804 } 9805 9806 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9807 0, LPFC_DRIVER_NAME, phba); 9808 if (rc) { 9809 pci_disable_msi(phba->pcidev); 9810 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9811 "0490 MSI request_irq failed (%d)\n", rc); 9812 return rc; 9813 } 9814 9815 for (index = 0; index < phba->io_channel_irqs; index++) { 9816 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9817 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9818 } 9819 9820 if (phba->cfg_fof) { 9821 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9822 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9823 } 9824 return 0; 9825 } 9826 9827 /** 9828 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9829 * @phba: pointer to lpfc hba data structure. 9830 * 9831 * This routine is invoked to enable device interrupt and associate driver's 9832 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9833 * interface spec. Depends on the interrupt mode configured to the driver, 9834 * the driver will try to fallback from the configured interrupt mode to an 9835 * interrupt mode which is supported by the platform, kernel, and device in 9836 * the order of: 9837 * MSI-X -> MSI -> IRQ. 9838 * 9839 * Return codes 9840 * 0 - successful 9841 * other values - error 9842 **/ 9843 static uint32_t 9844 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9845 { 9846 uint32_t intr_mode = LPFC_INTR_ERROR; 9847 int retval, idx; 9848 9849 if (cfg_mode == 2) { 9850 /* Preparation before conf_msi mbox cmd */ 9851 retval = 0; 9852 if (!retval) { 9853 /* Now, try to enable MSI-X interrupt mode */ 9854 retval = lpfc_sli4_enable_msix(phba); 9855 if (!retval) { 9856 /* Indicate initialization to MSI-X mode */ 9857 phba->intr_type = MSIX; 9858 intr_mode = 2; 9859 } 9860 } 9861 } 9862 9863 /* Fallback to MSI if MSI-X initialization failed */ 9864 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9865 retval = lpfc_sli4_enable_msi(phba); 9866 if (!retval) { 9867 /* Indicate initialization to MSI mode */ 9868 phba->intr_type = MSI; 9869 intr_mode = 1; 9870 } 9871 } 9872 9873 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9874 if (phba->intr_type == NONE) { 9875 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9876 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9877 if (!retval) { 9878 struct lpfc_hba_eq_hdl *eqhdl; 9879 9880 /* Indicate initialization to INTx mode */ 9881 phba->intr_type = INTx; 9882 intr_mode = 0; 9883 9884 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9885 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9886 eqhdl->idx = idx; 9887 eqhdl->phba = phba; 9888 atomic_set(&eqhdl->hba_eq_in_use, 1); 9889 } 9890 if (phba->cfg_fof) { 9891 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9892 eqhdl->idx = idx; 9893 eqhdl->phba = phba; 9894 atomic_set(&eqhdl->hba_eq_in_use, 1); 9895 } 9896 } 9897 } 9898 return intr_mode; 9899 } 9900 9901 /** 9902 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9903 * @phba: pointer to lpfc hba data structure. 9904 * 9905 * This routine is invoked to disable device interrupt and disassociate 9906 * the driver's interrupt handler(s) from interrupt vector(s) to device 9907 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9908 * will release the interrupt vector(s) for the message signaled interrupt. 9909 **/ 9910 static void 9911 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9912 { 9913 /* Disable the currently initialized interrupt mode */ 9914 if (phba->intr_type == MSIX) { 9915 int index; 9916 9917 /* Free up MSI-X multi-message vectors */ 9918 for (index = 0; index < phba->io_channel_irqs; index++) 9919 free_irq(pci_irq_vector(phba->pcidev, index), 9920 &phba->sli4_hba.hba_eq_hdl[index]); 9921 9922 if (phba->cfg_fof) 9923 free_irq(pci_irq_vector(phba->pcidev, index), 9924 &phba->sli4_hba.hba_eq_hdl[index]); 9925 } else { 9926 free_irq(phba->pcidev->irq, phba); 9927 } 9928 9929 pci_free_irq_vectors(phba->pcidev); 9930 9931 /* Reset interrupt management states */ 9932 phba->intr_type = NONE; 9933 phba->sli.slistat.sli_intr = 0; 9934 } 9935 9936 /** 9937 * lpfc_unset_hba - Unset SLI3 hba device initialization 9938 * @phba: pointer to lpfc hba data structure. 9939 * 9940 * This routine is invoked to unset the HBA device initialization steps to 9941 * a device with SLI-3 interface spec. 9942 **/ 9943 static void 9944 lpfc_unset_hba(struct lpfc_hba *phba) 9945 { 9946 struct lpfc_vport *vport = phba->pport; 9947 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9948 9949 spin_lock_irq(shost->host_lock); 9950 vport->load_flag |= FC_UNLOADING; 9951 spin_unlock_irq(shost->host_lock); 9952 9953 kfree(phba->vpi_bmask); 9954 kfree(phba->vpi_ids); 9955 9956 lpfc_stop_hba_timers(phba); 9957 9958 phba->pport->work_port_events = 0; 9959 9960 lpfc_sli_hba_down(phba); 9961 9962 lpfc_sli_brdrestart(phba); 9963 9964 lpfc_sli_disable_intr(phba); 9965 9966 return; 9967 } 9968 9969 /** 9970 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 9971 * @phba: Pointer to HBA context object. 9972 * 9973 * This function is called in the SLI4 code path to wait for completion 9974 * of device's XRIs exchange busy. It will check the XRI exchange busy 9975 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 9976 * that, it will check the XRI exchange busy on outstanding FCP and ELS 9977 * I/Os every 30 seconds, log error message, and wait forever. Only when 9978 * all XRI exchange busy complete, the driver unload shall proceed with 9979 * invoking the function reset ioctl mailbox command to the CNA and the 9980 * the rest of the driver unload resource release. 9981 **/ 9982 static void 9983 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 9984 { 9985 int wait_time = 0; 9986 int nvme_xri_cmpl = 1; 9987 int nvmet_xri_cmpl = 1; 9988 int fcp_xri_cmpl = 1; 9989 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9990 9991 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 9992 fcp_xri_cmpl = 9993 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9994 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9995 nvme_xri_cmpl = 9996 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 9997 nvmet_xri_cmpl = 9998 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 9999 } 10000 10001 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10002 !nvmet_xri_cmpl) { 10003 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10004 if (!nvme_xri_cmpl) 10005 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10006 "6100 NVME XRI exchange busy " 10007 "wait time: %d seconds.\n", 10008 wait_time/1000); 10009 if (!fcp_xri_cmpl) 10010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10011 "2877 FCP XRI exchange busy " 10012 "wait time: %d seconds.\n", 10013 wait_time/1000); 10014 if (!els_xri_cmpl) 10015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10016 "2878 ELS XRI exchange busy " 10017 "wait time: %d seconds.\n", 10018 wait_time/1000); 10019 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10020 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10021 } else { 10022 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10023 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10024 } 10025 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10026 nvme_xri_cmpl = list_empty( 10027 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10028 nvmet_xri_cmpl = list_empty( 10029 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10030 } 10031 10032 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10033 fcp_xri_cmpl = list_empty( 10034 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10035 10036 els_xri_cmpl = 10037 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10038 10039 } 10040 } 10041 10042 /** 10043 * lpfc_sli4_hba_unset - Unset the fcoe hba 10044 * @phba: Pointer to HBA context object. 10045 * 10046 * This function is called in the SLI4 code path to reset the HBA's FCoE 10047 * function. The caller is not required to hold any lock. This routine 10048 * issues PCI function reset mailbox command to reset the FCoE function. 10049 * At the end of the function, it calls lpfc_hba_down_post function to 10050 * free any pending commands. 10051 **/ 10052 static void 10053 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10054 { 10055 int wait_cnt = 0; 10056 LPFC_MBOXQ_t *mboxq; 10057 struct pci_dev *pdev = phba->pcidev; 10058 10059 lpfc_stop_hba_timers(phba); 10060 phba->sli4_hba.intr_enable = 0; 10061 10062 /* 10063 * Gracefully wait out the potential current outstanding asynchronous 10064 * mailbox command. 10065 */ 10066 10067 /* First, block any pending async mailbox command from posted */ 10068 spin_lock_irq(&phba->hbalock); 10069 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10070 spin_unlock_irq(&phba->hbalock); 10071 /* Now, trying to wait it out if we can */ 10072 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10073 msleep(10); 10074 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10075 break; 10076 } 10077 /* Forcefully release the outstanding mailbox command if timed out */ 10078 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10079 spin_lock_irq(&phba->hbalock); 10080 mboxq = phba->sli.mbox_active; 10081 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10082 __lpfc_mbox_cmpl_put(phba, mboxq); 10083 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10084 phba->sli.mbox_active = NULL; 10085 spin_unlock_irq(&phba->hbalock); 10086 } 10087 10088 /* Abort all iocbs associated with the hba */ 10089 lpfc_sli_hba_iocb_abort(phba); 10090 10091 /* Wait for completion of device XRI exchange busy */ 10092 lpfc_sli4_xri_exchange_busy_wait(phba); 10093 10094 /* Disable PCI subsystem interrupt */ 10095 lpfc_sli4_disable_intr(phba); 10096 10097 /* Disable SR-IOV if enabled */ 10098 if (phba->cfg_sriov_nr_virtfn) 10099 pci_disable_sriov(pdev); 10100 10101 /* Stop kthread signal shall trigger work_done one more time */ 10102 kthread_stop(phba->worker_thread); 10103 10104 /* Unset the queues shared with the hardware then release all 10105 * allocated resources. 10106 */ 10107 lpfc_sli4_queue_unset(phba); 10108 lpfc_sli4_queue_destroy(phba); 10109 10110 /* Reset SLI4 HBA FCoE function */ 10111 lpfc_pci_function_reset(phba); 10112 10113 /* Stop the SLI4 device port */ 10114 phba->pport->work_port_events = 0; 10115 } 10116 10117 /** 10118 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10119 * @phba: Pointer to HBA context object. 10120 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10121 * 10122 * This function is called in the SLI4 code path to read the port's 10123 * sli4 capabilities. 10124 * 10125 * This function may be be called from any context that can block-wait 10126 * for the completion. The expectation is that this routine is called 10127 * typically from probe_one or from the online routine. 10128 **/ 10129 int 10130 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10131 { 10132 int rc; 10133 struct lpfc_mqe *mqe; 10134 struct lpfc_pc_sli4_params *sli4_params; 10135 uint32_t mbox_tmo; 10136 10137 rc = 0; 10138 mqe = &mboxq->u.mqe; 10139 10140 /* Read the port's SLI4 Parameters port capabilities */ 10141 lpfc_pc_sli4_params(mboxq); 10142 if (!phba->sli4_hba.intr_enable) 10143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10144 else { 10145 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10146 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10147 } 10148 10149 if (unlikely(rc)) 10150 return 1; 10151 10152 sli4_params = &phba->sli4_hba.pc_sli4_params; 10153 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10154 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10155 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10156 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10157 &mqe->un.sli4_params); 10158 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10159 &mqe->un.sli4_params); 10160 sli4_params->proto_types = mqe->un.sli4_params.word3; 10161 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10162 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10163 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10164 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10165 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10166 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10167 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10168 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10169 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10170 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10171 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10172 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10173 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10174 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10175 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10176 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10177 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10178 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10179 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10180 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10181 10182 /* Make sure that sge_supp_len can be handled by the driver */ 10183 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10184 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10185 10186 return rc; 10187 } 10188 10189 /** 10190 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10191 * @phba: Pointer to HBA context object. 10192 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10193 * 10194 * This function is called in the SLI4 code path to read the port's 10195 * sli4 capabilities. 10196 * 10197 * This function may be be called from any context that can block-wait 10198 * for the completion. The expectation is that this routine is called 10199 * typically from probe_one or from the online routine. 10200 **/ 10201 int 10202 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10203 { 10204 int rc; 10205 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10206 struct lpfc_pc_sli4_params *sli4_params; 10207 uint32_t mbox_tmo; 10208 int length; 10209 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10210 10211 /* 10212 * By default, the driver assumes the SLI4 port requires RPI 10213 * header postings. The SLI4_PARAM response will correct this 10214 * assumption. 10215 */ 10216 phba->sli4_hba.rpi_hdrs_in_use = 1; 10217 10218 /* Read the port's SLI4 Config Parameters */ 10219 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10220 sizeof(struct lpfc_sli4_cfg_mhdr)); 10221 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10222 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10223 length, LPFC_SLI4_MBX_EMBED); 10224 if (!phba->sli4_hba.intr_enable) 10225 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10226 else { 10227 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10228 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10229 } 10230 if (unlikely(rc)) 10231 return rc; 10232 sli4_params = &phba->sli4_hba.pc_sli4_params; 10233 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10234 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10235 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10236 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10237 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10238 mbx_sli4_parameters); 10239 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10240 mbx_sli4_parameters); 10241 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10242 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10243 else 10244 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10245 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10246 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10247 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10248 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10249 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10250 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10251 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10252 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10253 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10254 mbx_sli4_parameters); 10255 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10256 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10257 mbx_sli4_parameters); 10258 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10259 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10260 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10261 bf_get(cfg_xib, mbx_sli4_parameters)); 10262 10263 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10264 !phba->nvme_support) { 10265 phba->nvme_support = 0; 10266 phba->nvmet_support = 0; 10267 phba->cfg_nvmet_mrq = 0; 10268 phba->cfg_nvme_io_channel = 0; 10269 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10271 "6101 Disabling NVME support: " 10272 "Not supported by firmware: %d %d\n", 10273 bf_get(cfg_nvme, mbx_sli4_parameters), 10274 bf_get(cfg_xib, mbx_sli4_parameters)); 10275 10276 /* If firmware doesn't support NVME, just use SCSI support */ 10277 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10278 return -ENODEV; 10279 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10280 } 10281 10282 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10283 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10284 10285 /* Make sure that sge_supp_len can be handled by the driver */ 10286 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10287 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10288 10289 /* 10290 * Issue IOs with CDB embedded in WQE to minimized the number 10291 * of DMAs the firmware has to do. Setting this to 1 also forces 10292 * the driver to use 128 bytes WQEs for FCP IOs. 10293 */ 10294 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10295 phba->fcp_embed_io = 1; 10296 else 10297 phba->fcp_embed_io = 0; 10298 10299 /* 10300 * Check if the SLI port supports MDS Diagnostics 10301 */ 10302 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10303 phba->mds_diags_support = 1; 10304 else 10305 phba->mds_diags_support = 0; 10306 return 0; 10307 } 10308 10309 /** 10310 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10311 * @pdev: pointer to PCI device 10312 * @pid: pointer to PCI device identifier 10313 * 10314 * This routine is to be called to attach a device with SLI-3 interface spec 10315 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10316 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10317 * information of the device and driver to see if the driver state that it can 10318 * support this kind of device. If the match is successful, the driver core 10319 * invokes this routine. If this routine determines it can claim the HBA, it 10320 * does all the initialization that it needs to do to handle the HBA properly. 10321 * 10322 * Return code 10323 * 0 - driver can claim the device 10324 * negative value - driver can not claim the device 10325 **/ 10326 static int 10327 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10328 { 10329 struct lpfc_hba *phba; 10330 struct lpfc_vport *vport = NULL; 10331 struct Scsi_Host *shost = NULL; 10332 int error; 10333 uint32_t cfg_mode, intr_mode; 10334 10335 /* Allocate memory for HBA structure */ 10336 phba = lpfc_hba_alloc(pdev); 10337 if (!phba) 10338 return -ENOMEM; 10339 10340 /* Perform generic PCI device enabling operation */ 10341 error = lpfc_enable_pci_dev(phba); 10342 if (error) 10343 goto out_free_phba; 10344 10345 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10346 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10347 if (error) 10348 goto out_disable_pci_dev; 10349 10350 /* Set up SLI-3 specific device PCI memory space */ 10351 error = lpfc_sli_pci_mem_setup(phba); 10352 if (error) { 10353 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10354 "1402 Failed to set up pci memory space.\n"); 10355 goto out_disable_pci_dev; 10356 } 10357 10358 /* Set up SLI-3 specific device driver resources */ 10359 error = lpfc_sli_driver_resource_setup(phba); 10360 if (error) { 10361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10362 "1404 Failed to set up driver resource.\n"); 10363 goto out_unset_pci_mem_s3; 10364 } 10365 10366 /* Initialize and populate the iocb list per host */ 10367 10368 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10369 if (error) { 10370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10371 "1405 Failed to initialize iocb list.\n"); 10372 goto out_unset_driver_resource_s3; 10373 } 10374 10375 /* Set up common device driver resources */ 10376 error = lpfc_setup_driver_resource_phase2(phba); 10377 if (error) { 10378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10379 "1406 Failed to set up driver resource.\n"); 10380 goto out_free_iocb_list; 10381 } 10382 10383 /* Get the default values for Model Name and Description */ 10384 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10385 10386 /* Create SCSI host to the physical port */ 10387 error = lpfc_create_shost(phba); 10388 if (error) { 10389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10390 "1407 Failed to create scsi host.\n"); 10391 goto out_unset_driver_resource; 10392 } 10393 10394 /* Configure sysfs attributes */ 10395 vport = phba->pport; 10396 error = lpfc_alloc_sysfs_attr(vport); 10397 if (error) { 10398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10399 "1476 Failed to allocate sysfs attr\n"); 10400 goto out_destroy_shost; 10401 } 10402 10403 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10404 /* Now, trying to enable interrupt and bring up the device */ 10405 cfg_mode = phba->cfg_use_msi; 10406 while (true) { 10407 /* Put device to a known state before enabling interrupt */ 10408 lpfc_stop_port(phba); 10409 /* Configure and enable interrupt */ 10410 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10411 if (intr_mode == LPFC_INTR_ERROR) { 10412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10413 "0431 Failed to enable interrupt.\n"); 10414 error = -ENODEV; 10415 goto out_free_sysfs_attr; 10416 } 10417 /* SLI-3 HBA setup */ 10418 if (lpfc_sli_hba_setup(phba)) { 10419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10420 "1477 Failed to set up hba\n"); 10421 error = -ENODEV; 10422 goto out_remove_device; 10423 } 10424 10425 /* Wait 50ms for the interrupts of previous mailbox commands */ 10426 msleep(50); 10427 /* Check active interrupts on message signaled interrupts */ 10428 if (intr_mode == 0 || 10429 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10430 /* Log the current active interrupt mode */ 10431 phba->intr_mode = intr_mode; 10432 lpfc_log_intr_mode(phba, intr_mode); 10433 break; 10434 } else { 10435 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10436 "0447 Configure interrupt mode (%d) " 10437 "failed active interrupt test.\n", 10438 intr_mode); 10439 /* Disable the current interrupt mode */ 10440 lpfc_sli_disable_intr(phba); 10441 /* Try next level of interrupt mode */ 10442 cfg_mode = --intr_mode; 10443 } 10444 } 10445 10446 /* Perform post initialization setup */ 10447 lpfc_post_init_setup(phba); 10448 10449 /* Check if there are static vports to be created. */ 10450 lpfc_create_static_vport(phba); 10451 10452 return 0; 10453 10454 out_remove_device: 10455 lpfc_unset_hba(phba); 10456 out_free_sysfs_attr: 10457 lpfc_free_sysfs_attr(vport); 10458 out_destroy_shost: 10459 lpfc_destroy_shost(phba); 10460 out_unset_driver_resource: 10461 lpfc_unset_driver_resource_phase2(phba); 10462 out_free_iocb_list: 10463 lpfc_free_iocb_list(phba); 10464 out_unset_driver_resource_s3: 10465 lpfc_sli_driver_resource_unset(phba); 10466 out_unset_pci_mem_s3: 10467 lpfc_sli_pci_mem_unset(phba); 10468 out_disable_pci_dev: 10469 lpfc_disable_pci_dev(phba); 10470 if (shost) 10471 scsi_host_put(shost); 10472 out_free_phba: 10473 lpfc_hba_free(phba); 10474 return error; 10475 } 10476 10477 /** 10478 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10479 * @pdev: pointer to PCI device 10480 * 10481 * This routine is to be called to disattach a device with SLI-3 interface 10482 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10483 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10484 * device to be removed from the PCI subsystem properly. 10485 **/ 10486 static void 10487 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10488 { 10489 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10490 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10491 struct lpfc_vport **vports; 10492 struct lpfc_hba *phba = vport->phba; 10493 int i; 10494 10495 spin_lock_irq(&phba->hbalock); 10496 vport->load_flag |= FC_UNLOADING; 10497 spin_unlock_irq(&phba->hbalock); 10498 10499 lpfc_free_sysfs_attr(vport); 10500 10501 /* Release all the vports against this physical port */ 10502 vports = lpfc_create_vport_work_array(phba); 10503 if (vports != NULL) 10504 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10505 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10506 continue; 10507 fc_vport_terminate(vports[i]->fc_vport); 10508 } 10509 lpfc_destroy_vport_work_array(phba, vports); 10510 10511 /* Remove FC host and then SCSI host with the physical port */ 10512 fc_remove_host(shost); 10513 scsi_remove_host(shost); 10514 10515 lpfc_cleanup(vport); 10516 10517 /* 10518 * Bring down the SLI Layer. This step disable all interrupts, 10519 * clears the rings, discards all mailbox commands, and resets 10520 * the HBA. 10521 */ 10522 10523 /* HBA interrupt will be disabled after this call */ 10524 lpfc_sli_hba_down(phba); 10525 /* Stop kthread signal shall trigger work_done one more time */ 10526 kthread_stop(phba->worker_thread); 10527 /* Final cleanup of txcmplq and reset the HBA */ 10528 lpfc_sli_brdrestart(phba); 10529 10530 kfree(phba->vpi_bmask); 10531 kfree(phba->vpi_ids); 10532 10533 lpfc_stop_hba_timers(phba); 10534 spin_lock_irq(&phba->hbalock); 10535 list_del_init(&vport->listentry); 10536 spin_unlock_irq(&phba->hbalock); 10537 10538 lpfc_debugfs_terminate(vport); 10539 10540 /* Disable SR-IOV if enabled */ 10541 if (phba->cfg_sriov_nr_virtfn) 10542 pci_disable_sriov(pdev); 10543 10544 /* Disable interrupt */ 10545 lpfc_sli_disable_intr(phba); 10546 10547 scsi_host_put(shost); 10548 10549 /* 10550 * Call scsi_free before mem_free since scsi bufs are released to their 10551 * corresponding pools here. 10552 */ 10553 lpfc_scsi_free(phba); 10554 lpfc_mem_free_all(phba); 10555 10556 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10557 phba->hbqslimp.virt, phba->hbqslimp.phys); 10558 10559 /* Free resources associated with SLI2 interface */ 10560 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10561 phba->slim2p.virt, phba->slim2p.phys); 10562 10563 /* unmap adapter SLIM and Control Registers */ 10564 iounmap(phba->ctrl_regs_memmap_p); 10565 iounmap(phba->slim_memmap_p); 10566 10567 lpfc_hba_free(phba); 10568 10569 pci_release_mem_regions(pdev); 10570 pci_disable_device(pdev); 10571 } 10572 10573 /** 10574 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10575 * @pdev: pointer to PCI device 10576 * @msg: power management message 10577 * 10578 * This routine is to be called from the kernel's PCI subsystem to support 10579 * system Power Management (PM) to device with SLI-3 interface spec. When 10580 * PM invokes this method, it quiesces the device by stopping the driver's 10581 * worker thread for the device, turning off device's interrupt and DMA, 10582 * and bring the device offline. Note that as the driver implements the 10583 * minimum PM requirements to a power-aware driver's PM support for the 10584 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10585 * to the suspend() method call will be treated as SUSPEND and the driver will 10586 * fully reinitialize its device during resume() method call, the driver will 10587 * set device to PCI_D3hot state in PCI config space instead of setting it 10588 * according to the @msg provided by the PM. 10589 * 10590 * Return code 10591 * 0 - driver suspended the device 10592 * Error otherwise 10593 **/ 10594 static int 10595 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10596 { 10597 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10598 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10599 10600 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10601 "0473 PCI device Power Management suspend.\n"); 10602 10603 /* Bring down the device */ 10604 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10605 lpfc_offline(phba); 10606 kthread_stop(phba->worker_thread); 10607 10608 /* Disable interrupt from device */ 10609 lpfc_sli_disable_intr(phba); 10610 10611 /* Save device state to PCI config space */ 10612 pci_save_state(pdev); 10613 pci_set_power_state(pdev, PCI_D3hot); 10614 10615 return 0; 10616 } 10617 10618 /** 10619 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10620 * @pdev: pointer to PCI device 10621 * 10622 * This routine is to be called from the kernel's PCI subsystem to support 10623 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10624 * invokes this method, it restores the device's PCI config space state and 10625 * fully reinitializes the device and brings it online. Note that as the 10626 * driver implements the minimum PM requirements to a power-aware driver's 10627 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10628 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10629 * driver will fully reinitialize its device during resume() method call, 10630 * the device will be set to PCI_D0 directly in PCI config space before 10631 * restoring the state. 10632 * 10633 * Return code 10634 * 0 - driver suspended the device 10635 * Error otherwise 10636 **/ 10637 static int 10638 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10639 { 10640 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10641 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10642 uint32_t intr_mode; 10643 int error; 10644 10645 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10646 "0452 PCI device Power Management resume.\n"); 10647 10648 /* Restore device state from PCI config space */ 10649 pci_set_power_state(pdev, PCI_D0); 10650 pci_restore_state(pdev); 10651 10652 /* 10653 * As the new kernel behavior of pci_restore_state() API call clears 10654 * device saved_state flag, need to save the restored state again. 10655 */ 10656 pci_save_state(pdev); 10657 10658 if (pdev->is_busmaster) 10659 pci_set_master(pdev); 10660 10661 /* Startup the kernel thread for this host adapter. */ 10662 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10663 "lpfc_worker_%d", phba->brd_no); 10664 if (IS_ERR(phba->worker_thread)) { 10665 error = PTR_ERR(phba->worker_thread); 10666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10667 "0434 PM resume failed to start worker " 10668 "thread: error=x%x.\n", error); 10669 return error; 10670 } 10671 10672 /* Configure and enable interrupt */ 10673 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10674 if (intr_mode == LPFC_INTR_ERROR) { 10675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10676 "0430 PM resume Failed to enable interrupt\n"); 10677 return -EIO; 10678 } else 10679 phba->intr_mode = intr_mode; 10680 10681 /* Restart HBA and bring it online */ 10682 lpfc_sli_brdrestart(phba); 10683 lpfc_online(phba); 10684 10685 /* Log the current active interrupt mode */ 10686 lpfc_log_intr_mode(phba, phba->intr_mode); 10687 10688 return 0; 10689 } 10690 10691 /** 10692 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10693 * @phba: pointer to lpfc hba data structure. 10694 * 10695 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10696 * aborts all the outstanding SCSI I/Os to the pci device. 10697 **/ 10698 static void 10699 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10700 { 10701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10702 "2723 PCI channel I/O abort preparing for recovery\n"); 10703 10704 /* 10705 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10706 * and let the SCSI mid-layer to retry them to recover. 10707 */ 10708 lpfc_sli_abort_fcp_rings(phba); 10709 } 10710 10711 /** 10712 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10713 * @phba: pointer to lpfc hba data structure. 10714 * 10715 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10716 * disables the device interrupt and pci device, and aborts the internal FCP 10717 * pending I/Os. 10718 **/ 10719 static void 10720 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10721 { 10722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10723 "2710 PCI channel disable preparing for reset\n"); 10724 10725 /* Block any management I/Os to the device */ 10726 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10727 10728 /* Block all SCSI devices' I/Os on the host */ 10729 lpfc_scsi_dev_block(phba); 10730 10731 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10732 lpfc_sli_flush_fcp_rings(phba); 10733 10734 /* stop all timers */ 10735 lpfc_stop_hba_timers(phba); 10736 10737 /* Disable interrupt and pci device */ 10738 lpfc_sli_disable_intr(phba); 10739 pci_disable_device(phba->pcidev); 10740 } 10741 10742 /** 10743 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10744 * @phba: pointer to lpfc hba data structure. 10745 * 10746 * This routine is called to prepare the SLI3 device for PCI slot permanently 10747 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10748 * pending I/Os. 10749 **/ 10750 static void 10751 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10752 { 10753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10754 "2711 PCI channel permanent disable for failure\n"); 10755 /* Block all SCSI devices' I/Os on the host */ 10756 lpfc_scsi_dev_block(phba); 10757 10758 /* stop all timers */ 10759 lpfc_stop_hba_timers(phba); 10760 10761 /* Clean up all driver's outstanding SCSI I/Os */ 10762 lpfc_sli_flush_fcp_rings(phba); 10763 } 10764 10765 /** 10766 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10767 * @pdev: pointer to PCI device. 10768 * @state: the current PCI connection state. 10769 * 10770 * This routine is called from the PCI subsystem for I/O error handling to 10771 * device with SLI-3 interface spec. This function is called by the PCI 10772 * subsystem after a PCI bus error affecting this device has been detected. 10773 * When this function is invoked, it will need to stop all the I/Os and 10774 * interrupt(s) to the device. Once that is done, it will return 10775 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10776 * as desired. 10777 * 10778 * Return codes 10779 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10780 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10781 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10782 **/ 10783 static pci_ers_result_t 10784 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10785 { 10786 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10787 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10788 10789 switch (state) { 10790 case pci_channel_io_normal: 10791 /* Non-fatal error, prepare for recovery */ 10792 lpfc_sli_prep_dev_for_recover(phba); 10793 return PCI_ERS_RESULT_CAN_RECOVER; 10794 case pci_channel_io_frozen: 10795 /* Fatal error, prepare for slot reset */ 10796 lpfc_sli_prep_dev_for_reset(phba); 10797 return PCI_ERS_RESULT_NEED_RESET; 10798 case pci_channel_io_perm_failure: 10799 /* Permanent failure, prepare for device down */ 10800 lpfc_sli_prep_dev_for_perm_failure(phba); 10801 return PCI_ERS_RESULT_DISCONNECT; 10802 default: 10803 /* Unknown state, prepare and request slot reset */ 10804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10805 "0472 Unknown PCI error state: x%x\n", state); 10806 lpfc_sli_prep_dev_for_reset(phba); 10807 return PCI_ERS_RESULT_NEED_RESET; 10808 } 10809 } 10810 10811 /** 10812 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10813 * @pdev: pointer to PCI device. 10814 * 10815 * This routine is called from the PCI subsystem for error handling to 10816 * device with SLI-3 interface spec. This is called after PCI bus has been 10817 * reset to restart the PCI card from scratch, as if from a cold-boot. 10818 * During the PCI subsystem error recovery, after driver returns 10819 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10820 * recovery and then call this routine before calling the .resume method 10821 * to recover the device. This function will initialize the HBA device, 10822 * enable the interrupt, but it will just put the HBA to offline state 10823 * without passing any I/O traffic. 10824 * 10825 * Return codes 10826 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10827 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10828 */ 10829 static pci_ers_result_t 10830 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10831 { 10832 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10833 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10834 struct lpfc_sli *psli = &phba->sli; 10835 uint32_t intr_mode; 10836 10837 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10838 if (pci_enable_device_mem(pdev)) { 10839 printk(KERN_ERR "lpfc: Cannot re-enable " 10840 "PCI device after reset.\n"); 10841 return PCI_ERS_RESULT_DISCONNECT; 10842 } 10843 10844 pci_restore_state(pdev); 10845 10846 /* 10847 * As the new kernel behavior of pci_restore_state() API call clears 10848 * device saved_state flag, need to save the restored state again. 10849 */ 10850 pci_save_state(pdev); 10851 10852 if (pdev->is_busmaster) 10853 pci_set_master(pdev); 10854 10855 spin_lock_irq(&phba->hbalock); 10856 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10857 spin_unlock_irq(&phba->hbalock); 10858 10859 /* Configure and enable interrupt */ 10860 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10861 if (intr_mode == LPFC_INTR_ERROR) { 10862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10863 "0427 Cannot re-enable interrupt after " 10864 "slot reset.\n"); 10865 return PCI_ERS_RESULT_DISCONNECT; 10866 } else 10867 phba->intr_mode = intr_mode; 10868 10869 /* Take device offline, it will perform cleanup */ 10870 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10871 lpfc_offline(phba); 10872 lpfc_sli_brdrestart(phba); 10873 10874 /* Log the current active interrupt mode */ 10875 lpfc_log_intr_mode(phba, phba->intr_mode); 10876 10877 return PCI_ERS_RESULT_RECOVERED; 10878 } 10879 10880 /** 10881 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10882 * @pdev: pointer to PCI device 10883 * 10884 * This routine is called from the PCI subsystem for error handling to device 10885 * with SLI-3 interface spec. It is called when kernel error recovery tells 10886 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10887 * error recovery. After this call, traffic can start to flow from this device 10888 * again. 10889 */ 10890 static void 10891 lpfc_io_resume_s3(struct pci_dev *pdev) 10892 { 10893 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10894 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10895 10896 /* Bring device online, it will be no-op for non-fatal error resume */ 10897 lpfc_online(phba); 10898 10899 /* Clean up Advanced Error Reporting (AER) if needed */ 10900 if (phba->hba_flag & HBA_AER_ENABLED) 10901 pci_cleanup_aer_uncorrect_error_status(pdev); 10902 } 10903 10904 /** 10905 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10906 * @phba: pointer to lpfc hba data structure. 10907 * 10908 * returns the number of ELS/CT IOCBs to reserve 10909 **/ 10910 int 10911 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10912 { 10913 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10914 10915 if (phba->sli_rev == LPFC_SLI_REV4) { 10916 if (max_xri <= 100) 10917 return 10; 10918 else if (max_xri <= 256) 10919 return 25; 10920 else if (max_xri <= 512) 10921 return 50; 10922 else if (max_xri <= 1024) 10923 return 100; 10924 else if (max_xri <= 1536) 10925 return 150; 10926 else if (max_xri <= 2048) 10927 return 200; 10928 else 10929 return 250; 10930 } else 10931 return 0; 10932 } 10933 10934 /** 10935 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 10936 * @phba: pointer to lpfc hba data structure. 10937 * 10938 * returns the number of ELS/CT + NVMET IOCBs to reserve 10939 **/ 10940 int 10941 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 10942 { 10943 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 10944 10945 if (phba->nvmet_support) 10946 max_xri += LPFC_NVMET_BUF_POST; 10947 return max_xri; 10948 } 10949 10950 10951 /** 10952 * lpfc_write_firmware - attempt to write a firmware image to the port 10953 * @fw: pointer to firmware image returned from request_firmware. 10954 * @phba: pointer to lpfc hba data structure. 10955 * 10956 **/ 10957 static void 10958 lpfc_write_firmware(const struct firmware *fw, void *context) 10959 { 10960 struct lpfc_hba *phba = (struct lpfc_hba *)context; 10961 char fwrev[FW_REV_STR_SIZE]; 10962 struct lpfc_grp_hdr *image; 10963 struct list_head dma_buffer_list; 10964 int i, rc = 0; 10965 struct lpfc_dmabuf *dmabuf, *next; 10966 uint32_t offset = 0, temp_offset = 0; 10967 uint32_t magic_number, ftype, fid, fsize; 10968 10969 /* It can be null in no-wait mode, sanity check */ 10970 if (!fw) { 10971 rc = -ENXIO; 10972 goto out; 10973 } 10974 image = (struct lpfc_grp_hdr *)fw->data; 10975 10976 magic_number = be32_to_cpu(image->magic_number); 10977 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 10978 fid = bf_get_be32(lpfc_grp_hdr_id, image), 10979 fsize = be32_to_cpu(image->size); 10980 10981 INIT_LIST_HEAD(&dma_buffer_list); 10982 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 10983 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 10984 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 10985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10986 "3022 Invalid FW image found. " 10987 "Magic:%x Type:%x ID:%x Size %d %zd\n", 10988 magic_number, ftype, fid, fsize, fw->size); 10989 rc = -EINVAL; 10990 goto release_out; 10991 } 10992 lpfc_decode_firmware_rev(phba, fwrev, 1); 10993 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 10994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10995 "3023 Updating Firmware, Current Version:%s " 10996 "New Version:%s\n", 10997 fwrev, image->revision); 10998 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 10999 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11000 GFP_KERNEL); 11001 if (!dmabuf) { 11002 rc = -ENOMEM; 11003 goto release_out; 11004 } 11005 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11006 SLI4_PAGE_SIZE, 11007 &dmabuf->phys, 11008 GFP_KERNEL); 11009 if (!dmabuf->virt) { 11010 kfree(dmabuf); 11011 rc = -ENOMEM; 11012 goto release_out; 11013 } 11014 list_add_tail(&dmabuf->list, &dma_buffer_list); 11015 } 11016 while (offset < fw->size) { 11017 temp_offset = offset; 11018 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11019 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11020 memcpy(dmabuf->virt, 11021 fw->data + temp_offset, 11022 fw->size - temp_offset); 11023 temp_offset = fw->size; 11024 break; 11025 } 11026 memcpy(dmabuf->virt, fw->data + temp_offset, 11027 SLI4_PAGE_SIZE); 11028 temp_offset += SLI4_PAGE_SIZE; 11029 } 11030 rc = lpfc_wr_object(phba, &dma_buffer_list, 11031 (fw->size - offset), &offset); 11032 if (rc) 11033 goto release_out; 11034 } 11035 rc = offset; 11036 } 11037 11038 release_out: 11039 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11040 list_del(&dmabuf->list); 11041 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11042 dmabuf->virt, dmabuf->phys); 11043 kfree(dmabuf); 11044 } 11045 release_firmware(fw); 11046 out: 11047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11048 "3024 Firmware update done: %d.\n", rc); 11049 return; 11050 } 11051 11052 /** 11053 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11054 * @phba: pointer to lpfc hba data structure. 11055 * 11056 * This routine is called to perform Linux generic firmware upgrade on device 11057 * that supports such feature. 11058 **/ 11059 int 11060 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11061 { 11062 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11063 int ret; 11064 const struct firmware *fw; 11065 11066 /* Only supported on SLI4 interface type 2 for now */ 11067 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11068 LPFC_SLI_INTF_IF_TYPE_2) 11069 return -EPERM; 11070 11071 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11072 11073 if (fw_upgrade == INT_FW_UPGRADE) { 11074 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11075 file_name, &phba->pcidev->dev, 11076 GFP_KERNEL, (void *)phba, 11077 lpfc_write_firmware); 11078 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11079 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11080 if (!ret) 11081 lpfc_write_firmware(fw, (void *)phba); 11082 } else { 11083 ret = -EINVAL; 11084 } 11085 11086 return ret; 11087 } 11088 11089 /** 11090 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11091 * @pdev: pointer to PCI device 11092 * @pid: pointer to PCI device identifier 11093 * 11094 * This routine is called from the kernel's PCI subsystem to device with 11095 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11096 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11097 * information of the device and driver to see if the driver state that it 11098 * can support this kind of device. If the match is successful, the driver 11099 * core invokes this routine. If this routine determines it can claim the HBA, 11100 * it does all the initialization that it needs to do to handle the HBA 11101 * properly. 11102 * 11103 * Return code 11104 * 0 - driver can claim the device 11105 * negative value - driver can not claim the device 11106 **/ 11107 static int 11108 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11109 { 11110 struct lpfc_hba *phba; 11111 struct lpfc_vport *vport = NULL; 11112 struct Scsi_Host *shost = NULL; 11113 int error, cnt; 11114 uint32_t cfg_mode, intr_mode; 11115 11116 /* Allocate memory for HBA structure */ 11117 phba = lpfc_hba_alloc(pdev); 11118 if (!phba) 11119 return -ENOMEM; 11120 11121 /* Perform generic PCI device enabling operation */ 11122 error = lpfc_enable_pci_dev(phba); 11123 if (error) 11124 goto out_free_phba; 11125 11126 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11127 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11128 if (error) 11129 goto out_disable_pci_dev; 11130 11131 /* Set up SLI-4 specific device PCI memory space */ 11132 error = lpfc_sli4_pci_mem_setup(phba); 11133 if (error) { 11134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11135 "1410 Failed to set up pci memory space.\n"); 11136 goto out_disable_pci_dev; 11137 } 11138 11139 /* Set up SLI-4 Specific device driver resources */ 11140 error = lpfc_sli4_driver_resource_setup(phba); 11141 if (error) { 11142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11143 "1412 Failed to set up driver resource.\n"); 11144 goto out_unset_pci_mem_s4; 11145 } 11146 11147 cnt = phba->cfg_iocb_cnt * 1024; 11148 if (phba->nvmet_support) 11149 cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq; 11150 11151 /* Initialize and populate the iocb list per host */ 11152 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11153 "2821 initialize iocb list %d total %d\n", 11154 phba->cfg_iocb_cnt, cnt); 11155 error = lpfc_init_iocb_list(phba, cnt); 11156 11157 if (error) { 11158 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11159 "1413 Failed to initialize iocb list.\n"); 11160 goto out_unset_driver_resource_s4; 11161 } 11162 11163 INIT_LIST_HEAD(&phba->active_rrq_list); 11164 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11165 11166 /* Set up common device driver resources */ 11167 error = lpfc_setup_driver_resource_phase2(phba); 11168 if (error) { 11169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11170 "1414 Failed to set up driver resource.\n"); 11171 goto out_free_iocb_list; 11172 } 11173 11174 /* Get the default values for Model Name and Description */ 11175 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11176 11177 /* Create SCSI host to the physical port */ 11178 error = lpfc_create_shost(phba); 11179 if (error) { 11180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11181 "1415 Failed to create scsi host.\n"); 11182 goto out_unset_driver_resource; 11183 } 11184 11185 /* Configure sysfs attributes */ 11186 vport = phba->pport; 11187 error = lpfc_alloc_sysfs_attr(vport); 11188 if (error) { 11189 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11190 "1416 Failed to allocate sysfs attr\n"); 11191 goto out_destroy_shost; 11192 } 11193 11194 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11195 /* Now, trying to enable interrupt and bring up the device */ 11196 cfg_mode = phba->cfg_use_msi; 11197 11198 /* Put device to a known state before enabling interrupt */ 11199 lpfc_stop_port(phba); 11200 11201 /* Configure and enable interrupt */ 11202 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11203 if (intr_mode == LPFC_INTR_ERROR) { 11204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11205 "0426 Failed to enable interrupt.\n"); 11206 error = -ENODEV; 11207 goto out_free_sysfs_attr; 11208 } 11209 /* Default to single EQ for non-MSI-X */ 11210 if (phba->intr_type != MSIX) { 11211 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11212 phba->cfg_fcp_io_channel = 1; 11213 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11214 phba->cfg_nvme_io_channel = 1; 11215 if (phba->nvmet_support) 11216 phba->cfg_nvmet_mrq = 1; 11217 } 11218 phba->io_channel_irqs = 1; 11219 } 11220 11221 /* Set up SLI-4 HBA */ 11222 if (lpfc_sli4_hba_setup(phba)) { 11223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11224 "1421 Failed to set up hba\n"); 11225 error = -ENODEV; 11226 goto out_disable_intr; 11227 } 11228 11229 /* Log the current active interrupt mode */ 11230 phba->intr_mode = intr_mode; 11231 lpfc_log_intr_mode(phba, intr_mode); 11232 11233 /* Perform post initialization setup */ 11234 lpfc_post_init_setup(phba); 11235 11236 /* NVME support in FW earlier in the driver load corrects the 11237 * FC4 type making a check for nvme_support unnecessary. 11238 */ 11239 if ((phba->nvmet_support == 0) && 11240 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11241 /* Create NVME binding with nvme_fc_transport. This 11242 * ensures the vport is initialized. If the localport 11243 * create fails, it should not unload the driver to 11244 * support field issues. 11245 */ 11246 error = lpfc_nvme_create_localport(vport); 11247 if (error) { 11248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11249 "6004 NVME registration failed, " 11250 "error x%x\n", 11251 error); 11252 } 11253 } 11254 11255 /* check for firmware upgrade or downgrade */ 11256 if (phba->cfg_request_firmware_upgrade) 11257 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11258 11259 /* Check if there are static vports to be created. */ 11260 lpfc_create_static_vport(phba); 11261 return 0; 11262 11263 out_disable_intr: 11264 lpfc_sli4_disable_intr(phba); 11265 out_free_sysfs_attr: 11266 lpfc_free_sysfs_attr(vport); 11267 out_destroy_shost: 11268 lpfc_destroy_shost(phba); 11269 out_unset_driver_resource: 11270 lpfc_unset_driver_resource_phase2(phba); 11271 out_free_iocb_list: 11272 lpfc_free_iocb_list(phba); 11273 out_unset_driver_resource_s4: 11274 lpfc_sli4_driver_resource_unset(phba); 11275 out_unset_pci_mem_s4: 11276 lpfc_sli4_pci_mem_unset(phba); 11277 out_disable_pci_dev: 11278 lpfc_disable_pci_dev(phba); 11279 if (shost) 11280 scsi_host_put(shost); 11281 out_free_phba: 11282 lpfc_hba_free(phba); 11283 return error; 11284 } 11285 11286 /** 11287 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11288 * @pdev: pointer to PCI device 11289 * 11290 * This routine is called from the kernel's PCI subsystem to device with 11291 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11292 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11293 * device to be removed from the PCI subsystem properly. 11294 **/ 11295 static void 11296 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11297 { 11298 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11299 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11300 struct lpfc_vport **vports; 11301 struct lpfc_hba *phba = vport->phba; 11302 int i; 11303 11304 /* Mark the device unloading flag */ 11305 spin_lock_irq(&phba->hbalock); 11306 vport->load_flag |= FC_UNLOADING; 11307 spin_unlock_irq(&phba->hbalock); 11308 11309 /* Free the HBA sysfs attributes */ 11310 lpfc_free_sysfs_attr(vport); 11311 11312 /* Release all the vports against this physical port */ 11313 vports = lpfc_create_vport_work_array(phba); 11314 if (vports != NULL) 11315 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11316 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11317 continue; 11318 fc_vport_terminate(vports[i]->fc_vport); 11319 } 11320 lpfc_destroy_vport_work_array(phba, vports); 11321 11322 /* Remove FC host and then SCSI host with the physical port */ 11323 fc_remove_host(shost); 11324 scsi_remove_host(shost); 11325 11326 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11327 * localports are destroyed after to cleanup all transport memory. 11328 */ 11329 lpfc_cleanup(vport); 11330 lpfc_nvmet_destroy_targetport(phba); 11331 lpfc_nvme_destroy_localport(vport); 11332 11333 /* 11334 * Bring down the SLI Layer. This step disables all interrupts, 11335 * clears the rings, discards all mailbox commands, and resets 11336 * the HBA FCoE function. 11337 */ 11338 lpfc_debugfs_terminate(vport); 11339 lpfc_sli4_hba_unset(phba); 11340 11341 spin_lock_irq(&phba->hbalock); 11342 list_del_init(&vport->listentry); 11343 spin_unlock_irq(&phba->hbalock); 11344 11345 /* Perform scsi free before driver resource_unset since scsi 11346 * buffers are released to their corresponding pools here. 11347 */ 11348 lpfc_scsi_free(phba); 11349 lpfc_nvme_free(phba); 11350 lpfc_free_iocb_list(phba); 11351 11352 lpfc_sli4_driver_resource_unset(phba); 11353 11354 /* Unmap adapter Control and Doorbell registers */ 11355 lpfc_sli4_pci_mem_unset(phba); 11356 11357 /* Release PCI resources and disable device's PCI function */ 11358 scsi_host_put(shost); 11359 lpfc_disable_pci_dev(phba); 11360 11361 /* Finally, free the driver's device data structure */ 11362 lpfc_hba_free(phba); 11363 11364 return; 11365 } 11366 11367 /** 11368 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11369 * @pdev: pointer to PCI device 11370 * @msg: power management message 11371 * 11372 * This routine is called from the kernel's PCI subsystem to support system 11373 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11374 * this method, it quiesces the device by stopping the driver's worker 11375 * thread for the device, turning off device's interrupt and DMA, and bring 11376 * the device offline. Note that as the driver implements the minimum PM 11377 * requirements to a power-aware driver's PM support for suspend/resume -- all 11378 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11379 * method call will be treated as SUSPEND and the driver will fully 11380 * reinitialize its device during resume() method call, the driver will set 11381 * device to PCI_D3hot state in PCI config space instead of setting it 11382 * according to the @msg provided by the PM. 11383 * 11384 * Return code 11385 * 0 - driver suspended the device 11386 * Error otherwise 11387 **/ 11388 static int 11389 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11390 { 11391 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11393 11394 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11395 "2843 PCI device Power Management suspend.\n"); 11396 11397 /* Bring down the device */ 11398 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11399 lpfc_offline(phba); 11400 kthread_stop(phba->worker_thread); 11401 11402 /* Disable interrupt from device */ 11403 lpfc_sli4_disable_intr(phba); 11404 lpfc_sli4_queue_destroy(phba); 11405 11406 /* Save device state to PCI config space */ 11407 pci_save_state(pdev); 11408 pci_set_power_state(pdev, PCI_D3hot); 11409 11410 return 0; 11411 } 11412 11413 /** 11414 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11415 * @pdev: pointer to PCI device 11416 * 11417 * This routine is called from the kernel's PCI subsystem to support system 11418 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11419 * this method, it restores the device's PCI config space state and fully 11420 * reinitializes the device and brings it online. Note that as the driver 11421 * implements the minimum PM requirements to a power-aware driver's PM for 11422 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11423 * to the suspend() method call will be treated as SUSPEND and the driver 11424 * will fully reinitialize its device during resume() method call, the device 11425 * will be set to PCI_D0 directly in PCI config space before restoring the 11426 * state. 11427 * 11428 * Return code 11429 * 0 - driver suspended the device 11430 * Error otherwise 11431 **/ 11432 static int 11433 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11434 { 11435 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11436 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11437 uint32_t intr_mode; 11438 int error; 11439 11440 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11441 "0292 PCI device Power Management resume.\n"); 11442 11443 /* Restore device state from PCI config space */ 11444 pci_set_power_state(pdev, PCI_D0); 11445 pci_restore_state(pdev); 11446 11447 /* 11448 * As the new kernel behavior of pci_restore_state() API call clears 11449 * device saved_state flag, need to save the restored state again. 11450 */ 11451 pci_save_state(pdev); 11452 11453 if (pdev->is_busmaster) 11454 pci_set_master(pdev); 11455 11456 /* Startup the kernel thread for this host adapter. */ 11457 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11458 "lpfc_worker_%d", phba->brd_no); 11459 if (IS_ERR(phba->worker_thread)) { 11460 error = PTR_ERR(phba->worker_thread); 11461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11462 "0293 PM resume failed to start worker " 11463 "thread: error=x%x.\n", error); 11464 return error; 11465 } 11466 11467 /* Configure and enable interrupt */ 11468 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11469 if (intr_mode == LPFC_INTR_ERROR) { 11470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11471 "0294 PM resume Failed to enable interrupt\n"); 11472 return -EIO; 11473 } else 11474 phba->intr_mode = intr_mode; 11475 11476 /* Restart HBA and bring it online */ 11477 lpfc_sli_brdrestart(phba); 11478 lpfc_online(phba); 11479 11480 /* Log the current active interrupt mode */ 11481 lpfc_log_intr_mode(phba, phba->intr_mode); 11482 11483 return 0; 11484 } 11485 11486 /** 11487 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11488 * @phba: pointer to lpfc hba data structure. 11489 * 11490 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11491 * aborts all the outstanding SCSI I/Os to the pci device. 11492 **/ 11493 static void 11494 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11495 { 11496 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11497 "2828 PCI channel I/O abort preparing for recovery\n"); 11498 /* 11499 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11500 * and let the SCSI mid-layer to retry them to recover. 11501 */ 11502 lpfc_sli_abort_fcp_rings(phba); 11503 } 11504 11505 /** 11506 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11507 * @phba: pointer to lpfc hba data structure. 11508 * 11509 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11510 * disables the device interrupt and pci device, and aborts the internal FCP 11511 * pending I/Os. 11512 **/ 11513 static void 11514 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11515 { 11516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11517 "2826 PCI channel disable preparing for reset\n"); 11518 11519 /* Block any management I/Os to the device */ 11520 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11521 11522 /* Block all SCSI devices' I/Os on the host */ 11523 lpfc_scsi_dev_block(phba); 11524 11525 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11526 lpfc_sli_flush_fcp_rings(phba); 11527 11528 /* stop all timers */ 11529 lpfc_stop_hba_timers(phba); 11530 11531 /* Disable interrupt and pci device */ 11532 lpfc_sli4_disable_intr(phba); 11533 lpfc_sli4_queue_destroy(phba); 11534 pci_disable_device(phba->pcidev); 11535 } 11536 11537 /** 11538 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11539 * @phba: pointer to lpfc hba data structure. 11540 * 11541 * This routine is called to prepare the SLI4 device for PCI slot permanently 11542 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11543 * pending I/Os. 11544 **/ 11545 static void 11546 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11547 { 11548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11549 "2827 PCI channel permanent disable for failure\n"); 11550 11551 /* Block all SCSI devices' I/Os on the host */ 11552 lpfc_scsi_dev_block(phba); 11553 11554 /* stop all timers */ 11555 lpfc_stop_hba_timers(phba); 11556 11557 /* Clean up all driver's outstanding SCSI I/Os */ 11558 lpfc_sli_flush_fcp_rings(phba); 11559 } 11560 11561 /** 11562 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11563 * @pdev: pointer to PCI device. 11564 * @state: the current PCI connection state. 11565 * 11566 * This routine is called from the PCI subsystem for error handling to device 11567 * with SLI-4 interface spec. This function is called by the PCI subsystem 11568 * after a PCI bus error affecting this device has been detected. When this 11569 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11570 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11571 * for the PCI subsystem to perform proper recovery as desired. 11572 * 11573 * Return codes 11574 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11575 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11576 **/ 11577 static pci_ers_result_t 11578 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11579 { 11580 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11581 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11582 11583 switch (state) { 11584 case pci_channel_io_normal: 11585 /* Non-fatal error, prepare for recovery */ 11586 lpfc_sli4_prep_dev_for_recover(phba); 11587 return PCI_ERS_RESULT_CAN_RECOVER; 11588 case pci_channel_io_frozen: 11589 /* Fatal error, prepare for slot reset */ 11590 lpfc_sli4_prep_dev_for_reset(phba); 11591 return PCI_ERS_RESULT_NEED_RESET; 11592 case pci_channel_io_perm_failure: 11593 /* Permanent failure, prepare for device down */ 11594 lpfc_sli4_prep_dev_for_perm_failure(phba); 11595 return PCI_ERS_RESULT_DISCONNECT; 11596 default: 11597 /* Unknown state, prepare and request slot reset */ 11598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11599 "2825 Unknown PCI error state: x%x\n", state); 11600 lpfc_sli4_prep_dev_for_reset(phba); 11601 return PCI_ERS_RESULT_NEED_RESET; 11602 } 11603 } 11604 11605 /** 11606 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11607 * @pdev: pointer to PCI device. 11608 * 11609 * This routine is called from the PCI subsystem for error handling to device 11610 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11611 * restart the PCI card from scratch, as if from a cold-boot. During the 11612 * PCI subsystem error recovery, after the driver returns 11613 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11614 * recovery and then call this routine before calling the .resume method to 11615 * recover the device. This function will initialize the HBA device, enable 11616 * the interrupt, but it will just put the HBA to offline state without 11617 * passing any I/O traffic. 11618 * 11619 * Return codes 11620 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11621 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11622 */ 11623 static pci_ers_result_t 11624 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11625 { 11626 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11627 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11628 struct lpfc_sli *psli = &phba->sli; 11629 uint32_t intr_mode; 11630 11631 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11632 if (pci_enable_device_mem(pdev)) { 11633 printk(KERN_ERR "lpfc: Cannot re-enable " 11634 "PCI device after reset.\n"); 11635 return PCI_ERS_RESULT_DISCONNECT; 11636 } 11637 11638 pci_restore_state(pdev); 11639 11640 /* 11641 * As the new kernel behavior of pci_restore_state() API call clears 11642 * device saved_state flag, need to save the restored state again. 11643 */ 11644 pci_save_state(pdev); 11645 11646 if (pdev->is_busmaster) 11647 pci_set_master(pdev); 11648 11649 spin_lock_irq(&phba->hbalock); 11650 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11651 spin_unlock_irq(&phba->hbalock); 11652 11653 /* Configure and enable interrupt */ 11654 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11655 if (intr_mode == LPFC_INTR_ERROR) { 11656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11657 "2824 Cannot re-enable interrupt after " 11658 "slot reset.\n"); 11659 return PCI_ERS_RESULT_DISCONNECT; 11660 } else 11661 phba->intr_mode = intr_mode; 11662 11663 /* Log the current active interrupt mode */ 11664 lpfc_log_intr_mode(phba, phba->intr_mode); 11665 11666 return PCI_ERS_RESULT_RECOVERED; 11667 } 11668 11669 /** 11670 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11671 * @pdev: pointer to PCI device 11672 * 11673 * This routine is called from the PCI subsystem for error handling to device 11674 * with SLI-4 interface spec. It is called when kernel error recovery tells 11675 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11676 * error recovery. After this call, traffic can start to flow from this device 11677 * again. 11678 **/ 11679 static void 11680 lpfc_io_resume_s4(struct pci_dev *pdev) 11681 { 11682 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11683 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11684 11685 /* 11686 * In case of slot reset, as function reset is performed through 11687 * mailbox command which needs DMA to be enabled, this operation 11688 * has to be moved to the io resume phase. Taking device offline 11689 * will perform the necessary cleanup. 11690 */ 11691 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11692 /* Perform device reset */ 11693 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11694 lpfc_offline(phba); 11695 lpfc_sli_brdrestart(phba); 11696 /* Bring the device back online */ 11697 lpfc_online(phba); 11698 } 11699 11700 /* Clean up Advanced Error Reporting (AER) if needed */ 11701 if (phba->hba_flag & HBA_AER_ENABLED) 11702 pci_cleanup_aer_uncorrect_error_status(pdev); 11703 } 11704 11705 /** 11706 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11707 * @pdev: pointer to PCI device 11708 * @pid: pointer to PCI device identifier 11709 * 11710 * This routine is to be registered to the kernel's PCI subsystem. When an 11711 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11712 * at PCI device-specific information of the device and driver to see if the 11713 * driver state that it can support this kind of device. If the match is 11714 * successful, the driver core invokes this routine. This routine dispatches 11715 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11716 * do all the initialization that it needs to do to handle the HBA device 11717 * properly. 11718 * 11719 * Return code 11720 * 0 - driver can claim the device 11721 * negative value - driver can not claim the device 11722 **/ 11723 static int 11724 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11725 { 11726 int rc; 11727 struct lpfc_sli_intf intf; 11728 11729 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11730 return -ENODEV; 11731 11732 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11733 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11734 rc = lpfc_pci_probe_one_s4(pdev, pid); 11735 else 11736 rc = lpfc_pci_probe_one_s3(pdev, pid); 11737 11738 return rc; 11739 } 11740 11741 /** 11742 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11743 * @pdev: pointer to PCI device 11744 * 11745 * This routine is to be registered to the kernel's PCI subsystem. When an 11746 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11747 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11748 * remove routine, which will perform all the necessary cleanup for the 11749 * device to be removed from the PCI subsystem properly. 11750 **/ 11751 static void 11752 lpfc_pci_remove_one(struct pci_dev *pdev) 11753 { 11754 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11755 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11756 11757 switch (phba->pci_dev_grp) { 11758 case LPFC_PCI_DEV_LP: 11759 lpfc_pci_remove_one_s3(pdev); 11760 break; 11761 case LPFC_PCI_DEV_OC: 11762 lpfc_pci_remove_one_s4(pdev); 11763 break; 11764 default: 11765 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11766 "1424 Invalid PCI device group: 0x%x\n", 11767 phba->pci_dev_grp); 11768 break; 11769 } 11770 return; 11771 } 11772 11773 /** 11774 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11775 * @pdev: pointer to PCI device 11776 * @msg: power management message 11777 * 11778 * This routine is to be registered to the kernel's PCI subsystem to support 11779 * system Power Management (PM). When PM invokes this method, it dispatches 11780 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11781 * suspend the device. 11782 * 11783 * Return code 11784 * 0 - driver suspended the device 11785 * Error otherwise 11786 **/ 11787 static int 11788 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11789 { 11790 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11791 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11792 int rc = -ENODEV; 11793 11794 switch (phba->pci_dev_grp) { 11795 case LPFC_PCI_DEV_LP: 11796 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11797 break; 11798 case LPFC_PCI_DEV_OC: 11799 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11800 break; 11801 default: 11802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11803 "1425 Invalid PCI device group: 0x%x\n", 11804 phba->pci_dev_grp); 11805 break; 11806 } 11807 return rc; 11808 } 11809 11810 /** 11811 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11812 * @pdev: pointer to PCI device 11813 * 11814 * This routine is to be registered to the kernel's PCI subsystem to support 11815 * system Power Management (PM). When PM invokes this method, it dispatches 11816 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11817 * resume the device. 11818 * 11819 * Return code 11820 * 0 - driver suspended the device 11821 * Error otherwise 11822 **/ 11823 static int 11824 lpfc_pci_resume_one(struct pci_dev *pdev) 11825 { 11826 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11827 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11828 int rc = -ENODEV; 11829 11830 switch (phba->pci_dev_grp) { 11831 case LPFC_PCI_DEV_LP: 11832 rc = lpfc_pci_resume_one_s3(pdev); 11833 break; 11834 case LPFC_PCI_DEV_OC: 11835 rc = lpfc_pci_resume_one_s4(pdev); 11836 break; 11837 default: 11838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11839 "1426 Invalid PCI device group: 0x%x\n", 11840 phba->pci_dev_grp); 11841 break; 11842 } 11843 return rc; 11844 } 11845 11846 /** 11847 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11848 * @pdev: pointer to PCI device. 11849 * @state: the current PCI connection state. 11850 * 11851 * This routine is registered to the PCI subsystem for error handling. This 11852 * function is called by the PCI subsystem after a PCI bus error affecting 11853 * this device has been detected. When this routine is invoked, it dispatches 11854 * the action to the proper SLI-3 or SLI-4 device error detected handling 11855 * routine, which will perform the proper error detected operation. 11856 * 11857 * Return codes 11858 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11859 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11860 **/ 11861 static pci_ers_result_t 11862 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11863 { 11864 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11865 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11866 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11867 11868 switch (phba->pci_dev_grp) { 11869 case LPFC_PCI_DEV_LP: 11870 rc = lpfc_io_error_detected_s3(pdev, state); 11871 break; 11872 case LPFC_PCI_DEV_OC: 11873 rc = lpfc_io_error_detected_s4(pdev, state); 11874 break; 11875 default: 11876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11877 "1427 Invalid PCI device group: 0x%x\n", 11878 phba->pci_dev_grp); 11879 break; 11880 } 11881 return rc; 11882 } 11883 11884 /** 11885 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11886 * @pdev: pointer to PCI device. 11887 * 11888 * This routine is registered to the PCI subsystem for error handling. This 11889 * function is called after PCI bus has been reset to restart the PCI card 11890 * from scratch, as if from a cold-boot. When this routine is invoked, it 11891 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11892 * routine, which will perform the proper device reset. 11893 * 11894 * Return codes 11895 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11896 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11897 **/ 11898 static pci_ers_result_t 11899 lpfc_io_slot_reset(struct pci_dev *pdev) 11900 { 11901 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11902 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11903 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11904 11905 switch (phba->pci_dev_grp) { 11906 case LPFC_PCI_DEV_LP: 11907 rc = lpfc_io_slot_reset_s3(pdev); 11908 break; 11909 case LPFC_PCI_DEV_OC: 11910 rc = lpfc_io_slot_reset_s4(pdev); 11911 break; 11912 default: 11913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11914 "1428 Invalid PCI device group: 0x%x\n", 11915 phba->pci_dev_grp); 11916 break; 11917 } 11918 return rc; 11919 } 11920 11921 /** 11922 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11923 * @pdev: pointer to PCI device 11924 * 11925 * This routine is registered to the PCI subsystem for error handling. It 11926 * is called when kernel error recovery tells the lpfc driver that it is 11927 * OK to resume normal PCI operation after PCI bus error recovery. When 11928 * this routine is invoked, it dispatches the action to the proper SLI-3 11929 * or SLI-4 device io_resume routine, which will resume the device operation. 11930 **/ 11931 static void 11932 lpfc_io_resume(struct pci_dev *pdev) 11933 { 11934 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11935 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11936 11937 switch (phba->pci_dev_grp) { 11938 case LPFC_PCI_DEV_LP: 11939 lpfc_io_resume_s3(pdev); 11940 break; 11941 case LPFC_PCI_DEV_OC: 11942 lpfc_io_resume_s4(pdev); 11943 break; 11944 default: 11945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11946 "1429 Invalid PCI device group: 0x%x\n", 11947 phba->pci_dev_grp); 11948 break; 11949 } 11950 return; 11951 } 11952 11953 /** 11954 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 11955 * @phba: pointer to lpfc hba data structure. 11956 * 11957 * This routine checks to see if OAS is supported for this adapter. If 11958 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 11959 * the enable oas flag is cleared and the pool created for OAS device data 11960 * is destroyed. 11961 * 11962 **/ 11963 void 11964 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 11965 { 11966 11967 if (!phba->cfg_EnableXLane) 11968 return; 11969 11970 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 11971 phba->cfg_fof = 1; 11972 } else { 11973 phba->cfg_fof = 0; 11974 if (phba->device_data_mem_pool) 11975 mempool_destroy(phba->device_data_mem_pool); 11976 phba->device_data_mem_pool = NULL; 11977 } 11978 11979 return; 11980 } 11981 11982 /** 11983 * lpfc_fof_queue_setup - Set up all the fof queues 11984 * @phba: pointer to lpfc hba data structure. 11985 * 11986 * This routine is invoked to set up all the fof queues for the FC HBA 11987 * operation. 11988 * 11989 * Return codes 11990 * 0 - successful 11991 * -ENOMEM - No available memory 11992 **/ 11993 int 11994 lpfc_fof_queue_setup(struct lpfc_hba *phba) 11995 { 11996 struct lpfc_sli_ring *pring; 11997 int rc; 11998 11999 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12000 if (rc) 12001 return -ENOMEM; 12002 12003 if (phba->cfg_fof) { 12004 12005 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12006 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12007 if (rc) 12008 goto out_oas_cq; 12009 12010 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12011 phba->sli4_hba.oas_cq, LPFC_FCP); 12012 if (rc) 12013 goto out_oas_wq; 12014 12015 /* Bind this CQ/WQ to the NVME ring */ 12016 pring = phba->sli4_hba.oas_wq->pring; 12017 pring->sli.sli4.wqp = 12018 (void *)phba->sli4_hba.oas_wq; 12019 phba->sli4_hba.oas_cq->pring = pring; 12020 } 12021 12022 return 0; 12023 12024 out_oas_wq: 12025 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12026 out_oas_cq: 12027 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12028 return rc; 12029 12030 } 12031 12032 /** 12033 * lpfc_fof_queue_create - Create all the fof queues 12034 * @phba: pointer to lpfc hba data structure. 12035 * 12036 * This routine is invoked to allocate all the fof queues for the FC HBA 12037 * operation. For each SLI4 queue type, the parameters such as queue entry 12038 * count (queue depth) shall be taken from the module parameter. For now, 12039 * we just use some constant number as place holder. 12040 * 12041 * Return codes 12042 * 0 - successful 12043 * -ENOMEM - No availble memory 12044 * -EIO - The mailbox failed to complete successfully. 12045 **/ 12046 int 12047 lpfc_fof_queue_create(struct lpfc_hba *phba) 12048 { 12049 struct lpfc_queue *qdesc; 12050 uint32_t wqesize; 12051 12052 /* Create FOF EQ */ 12053 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12054 phba->sli4_hba.eq_ecount); 12055 if (!qdesc) 12056 goto out_error; 12057 12058 phba->sli4_hba.fof_eq = qdesc; 12059 12060 if (phba->cfg_fof) { 12061 12062 /* Create OAS CQ */ 12063 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12064 phba->sli4_hba.cq_ecount); 12065 if (!qdesc) 12066 goto out_error; 12067 12068 phba->sli4_hba.oas_cq = qdesc; 12069 12070 /* Create OAS WQ */ 12071 wqesize = (phba->fcp_embed_io) ? 12072 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12073 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12074 phba->sli4_hba.wq_ecount); 12075 12076 if (!qdesc) 12077 goto out_error; 12078 12079 phba->sli4_hba.oas_wq = qdesc; 12080 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12081 12082 } 12083 return 0; 12084 12085 out_error: 12086 lpfc_fof_queue_destroy(phba); 12087 return -ENOMEM; 12088 } 12089 12090 /** 12091 * lpfc_fof_queue_destroy - Destroy all the fof queues 12092 * @phba: pointer to lpfc hba data structure. 12093 * 12094 * This routine is invoked to release all the SLI4 queues with the FC HBA 12095 * operation. 12096 * 12097 * Return codes 12098 * 0 - successful 12099 **/ 12100 int 12101 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12102 { 12103 /* Release FOF Event queue */ 12104 if (phba->sli4_hba.fof_eq != NULL) { 12105 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12106 phba->sli4_hba.fof_eq = NULL; 12107 } 12108 12109 /* Release OAS Completion queue */ 12110 if (phba->sli4_hba.oas_cq != NULL) { 12111 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12112 phba->sli4_hba.oas_cq = NULL; 12113 } 12114 12115 /* Release OAS Work queue */ 12116 if (phba->sli4_hba.oas_wq != NULL) { 12117 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12118 phba->sli4_hba.oas_wq = NULL; 12119 } 12120 return 0; 12121 } 12122 12123 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12124 12125 static const struct pci_error_handlers lpfc_err_handler = { 12126 .error_detected = lpfc_io_error_detected, 12127 .slot_reset = lpfc_io_slot_reset, 12128 .resume = lpfc_io_resume, 12129 }; 12130 12131 static struct pci_driver lpfc_driver = { 12132 .name = LPFC_DRIVER_NAME, 12133 .id_table = lpfc_id_table, 12134 .probe = lpfc_pci_probe_one, 12135 .remove = lpfc_pci_remove_one, 12136 .shutdown = lpfc_pci_remove_one, 12137 .suspend = lpfc_pci_suspend_one, 12138 .resume = lpfc_pci_resume_one, 12139 .err_handler = &lpfc_err_handler, 12140 }; 12141 12142 static const struct file_operations lpfc_mgmt_fop = { 12143 .owner = THIS_MODULE, 12144 }; 12145 12146 static struct miscdevice lpfc_mgmt_dev = { 12147 .minor = MISC_DYNAMIC_MINOR, 12148 .name = "lpfcmgmt", 12149 .fops = &lpfc_mgmt_fop, 12150 }; 12151 12152 /** 12153 * lpfc_init - lpfc module initialization routine 12154 * 12155 * This routine is to be invoked when the lpfc module is loaded into the 12156 * kernel. The special kernel macro module_init() is used to indicate the 12157 * role of this routine to the kernel as lpfc module entry point. 12158 * 12159 * Return codes 12160 * 0 - successful 12161 * -ENOMEM - FC attach transport failed 12162 * all others - failed 12163 */ 12164 static int __init 12165 lpfc_init(void) 12166 { 12167 int error = 0; 12168 12169 printk(LPFC_MODULE_DESC "\n"); 12170 printk(LPFC_COPYRIGHT "\n"); 12171 12172 error = misc_register(&lpfc_mgmt_dev); 12173 if (error) 12174 printk(KERN_ERR "Could not register lpfcmgmt device, " 12175 "misc_register returned with status %d", error); 12176 12177 lpfc_transport_functions.vport_create = lpfc_vport_create; 12178 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12179 lpfc_transport_template = 12180 fc_attach_transport(&lpfc_transport_functions); 12181 if (lpfc_transport_template == NULL) 12182 return -ENOMEM; 12183 lpfc_vport_transport_template = 12184 fc_attach_transport(&lpfc_vport_transport_functions); 12185 if (lpfc_vport_transport_template == NULL) { 12186 fc_release_transport(lpfc_transport_template); 12187 return -ENOMEM; 12188 } 12189 12190 /* Initialize in case vector mapping is needed */ 12191 lpfc_used_cpu = NULL; 12192 lpfc_present_cpu = num_present_cpus(); 12193 12194 error = pci_register_driver(&lpfc_driver); 12195 if (error) { 12196 fc_release_transport(lpfc_transport_template); 12197 fc_release_transport(lpfc_vport_transport_template); 12198 } 12199 12200 return error; 12201 } 12202 12203 /** 12204 * lpfc_exit - lpfc module removal routine 12205 * 12206 * This routine is invoked when the lpfc module is removed from the kernel. 12207 * The special kernel macro module_exit() is used to indicate the role of 12208 * this routine to the kernel as lpfc module exit point. 12209 */ 12210 static void __exit 12211 lpfc_exit(void) 12212 { 12213 misc_deregister(&lpfc_mgmt_dev); 12214 pci_unregister_driver(&lpfc_driver); 12215 fc_release_transport(lpfc_transport_template); 12216 fc_release_transport(lpfc_vport_transport_template); 12217 if (_dump_buf_data) { 12218 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12219 "_dump_buf_data at 0x%p\n", 12220 (1L << _dump_buf_data_order), _dump_buf_data); 12221 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12222 } 12223 12224 if (_dump_buf_dif) { 12225 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12226 "_dump_buf_dif at 0x%p\n", 12227 (1L << _dump_buf_dif_order), _dump_buf_dif); 12228 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12229 } 12230 kfree(lpfc_used_cpu); 12231 idr_destroy(&lpfc_hba_index); 12232 } 12233 12234 module_init(lpfc_init); 12235 module_exit(lpfc_exit); 12236 MODULE_LICENSE("GPL"); 12237 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12238 MODULE_AUTHOR("Broadcom"); 12239 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12240