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 3606 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3607 GFP_KERNEL); 3608 if (!mboxq) 3609 return (uint64_t)-1; 3610 3611 /* First get WWN of HBA instance */ 3612 lpfc_read_nv(phba, mboxq); 3613 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3614 if (rc != MBX_SUCCESS) { 3615 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3616 "6019 Mailbox failed , mbxCmd x%x " 3617 "READ_NV, mbxStatus x%x\n", 3618 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3619 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3620 mempool_free(mboxq, phba->mbox_mem_pool); 3621 return (uint64_t) -1; 3622 } 3623 mb = &mboxq->u.mb; 3624 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3625 /* wwn is WWPN of HBA instance */ 3626 mempool_free(mboxq, phba->mbox_mem_pool); 3627 if (phba->sli_rev == LPFC_SLI_REV4) 3628 return be64_to_cpu(wwn); 3629 else 3630 return (((wwn & 0xffffffff00000000) >> 32) | 3631 ((wwn & 0x00000000ffffffff) << 32)); 3632 3633 } 3634 3635 /** 3636 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3637 * @phba: pointer to lpfc hba data structure. 3638 * 3639 * This routine first calculates the sizes of the current els and allocated 3640 * scsi sgl lists, and then goes through all sgls to updates the physical 3641 * XRIs assigned due to port function reset. During port initialization, the 3642 * current els and allocated scsi sgl lists are 0s. 3643 * 3644 * Return codes 3645 * 0 - successful (for now, it always returns 0) 3646 **/ 3647 int 3648 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3649 { 3650 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3651 uint16_t i, lxri, els_xri_cnt; 3652 uint16_t nvme_xri_cnt, nvme_xri_max; 3653 LIST_HEAD(nvme_sgl_list); 3654 int rc; 3655 3656 phba->total_nvme_bufs = 0; 3657 3658 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3659 return 0; 3660 /* 3661 * update on pci function's allocated nvme xri-sgl list 3662 */ 3663 3664 /* maximum number of xris available for nvme buffers */ 3665 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3666 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3667 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3668 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3669 3670 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3671 "6074 Current allocated NVME xri-sgl count:%d, " 3672 "maximum NVME xri count:%d\n", 3673 phba->sli4_hba.nvme_xri_cnt, 3674 phba->sli4_hba.nvme_xri_max); 3675 3676 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3677 spin_lock(&phba->nvme_buf_list_put_lock); 3678 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3679 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3680 spin_unlock(&phba->nvme_buf_list_put_lock); 3681 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3682 3683 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3684 /* max nvme xri shrunk below the allocated nvme buffers */ 3685 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3686 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3687 phba->sli4_hba.nvme_xri_max; 3688 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3689 /* release the extra allocated nvme buffers */ 3690 for (i = 0; i < nvme_xri_cnt; i++) { 3691 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3692 struct lpfc_nvme_buf, list); 3693 if (lpfc_ncmd) { 3694 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3695 lpfc_ncmd->data, 3696 lpfc_ncmd->dma_handle); 3697 kfree(lpfc_ncmd); 3698 } 3699 } 3700 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3701 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3702 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3703 } 3704 3705 /* update xris associated to remaining allocated nvme buffers */ 3706 lpfc_ncmd = NULL; 3707 lpfc_ncmd_next = NULL; 3708 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3709 &nvme_sgl_list, list) { 3710 lxri = lpfc_sli4_next_xritag(phba); 3711 if (lxri == NO_XRI) { 3712 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3713 "6075 Failed to allocate xri for " 3714 "nvme buffer\n"); 3715 rc = -ENOMEM; 3716 goto out_free_mem; 3717 } 3718 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3719 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3720 } 3721 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3722 spin_lock(&phba->nvme_buf_list_put_lock); 3723 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3724 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3725 spin_unlock(&phba->nvme_buf_list_put_lock); 3726 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3727 return 0; 3728 3729 out_free_mem: 3730 lpfc_nvme_free(phba); 3731 return rc; 3732 } 3733 3734 /** 3735 * lpfc_create_port - Create an FC port 3736 * @phba: pointer to lpfc hba data structure. 3737 * @instance: a unique integer ID to this FC port. 3738 * @dev: pointer to the device data structure. 3739 * 3740 * This routine creates a FC port for the upper layer protocol. The FC port 3741 * can be created on top of either a physical port or a virtual port provided 3742 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3743 * and associates the FC port created before adding the shost into the SCSI 3744 * layer. 3745 * 3746 * Return codes 3747 * @vport - pointer to the virtual N_Port data structure. 3748 * NULL - port create failed. 3749 **/ 3750 struct lpfc_vport * 3751 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3752 { 3753 struct lpfc_vport *vport; 3754 struct Scsi_Host *shost = NULL; 3755 int error = 0; 3756 int i; 3757 uint64_t wwn; 3758 bool use_no_reset_hba = false; 3759 3760 wwn = lpfc_get_wwpn(phba); 3761 3762 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3763 if (wwn == lpfc_no_hba_reset[i]) { 3764 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3765 "6020 Setting use_no_reset port=%llx\n", 3766 wwn); 3767 use_no_reset_hba = true; 3768 break; 3769 } 3770 } 3771 3772 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3773 if (dev != &phba->pcidev->dev) { 3774 shost = scsi_host_alloc(&lpfc_vport_template, 3775 sizeof(struct lpfc_vport)); 3776 } else { 3777 if (!use_no_reset_hba) 3778 shost = scsi_host_alloc(&lpfc_template, 3779 sizeof(struct lpfc_vport)); 3780 else 3781 shost = scsi_host_alloc(&lpfc_template_no_hr, 3782 sizeof(struct lpfc_vport)); 3783 } 3784 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3785 shost = scsi_host_alloc(&lpfc_template_nvme, 3786 sizeof(struct lpfc_vport)); 3787 } 3788 if (!shost) 3789 goto out; 3790 3791 vport = (struct lpfc_vport *) shost->hostdata; 3792 vport->phba = phba; 3793 vport->load_flag |= FC_LOADING; 3794 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3795 vport->fc_rscn_flush = 0; 3796 lpfc_get_vport_cfgparam(vport); 3797 3798 shost->unique_id = instance; 3799 shost->max_id = LPFC_MAX_TARGET; 3800 shost->max_lun = vport->cfg_max_luns; 3801 shost->this_id = -1; 3802 shost->max_cmd_len = 16; 3803 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3804 if (phba->sli_rev == LPFC_SLI_REV4) { 3805 shost->dma_boundary = 3806 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3807 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3808 } 3809 3810 /* 3811 * Set initial can_queue value since 0 is no longer supported and 3812 * scsi_add_host will fail. This will be adjusted later based on the 3813 * max xri value determined in hba setup. 3814 */ 3815 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3816 if (dev != &phba->pcidev->dev) { 3817 shost->transportt = lpfc_vport_transport_template; 3818 vport->port_type = LPFC_NPIV_PORT; 3819 } else { 3820 shost->transportt = lpfc_transport_template; 3821 vport->port_type = LPFC_PHYSICAL_PORT; 3822 } 3823 3824 /* Initialize all internally managed lists. */ 3825 INIT_LIST_HEAD(&vport->fc_nodes); 3826 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3827 spin_lock_init(&vport->work_port_lock); 3828 3829 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, 3830 (unsigned long)vport); 3831 3832 setup_timer(&vport->els_tmofunc, lpfc_els_timeout, 3833 (unsigned long)vport); 3834 3835 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 3836 (unsigned long)vport); 3837 3838 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3839 if (error) 3840 goto out_put_shost; 3841 3842 spin_lock_irq(&phba->hbalock); 3843 list_add_tail(&vport->listentry, &phba->port_list); 3844 spin_unlock_irq(&phba->hbalock); 3845 return vport; 3846 3847 out_put_shost: 3848 scsi_host_put(shost); 3849 out: 3850 return NULL; 3851 } 3852 3853 /** 3854 * destroy_port - destroy an FC port 3855 * @vport: pointer to an lpfc virtual N_Port data structure. 3856 * 3857 * This routine destroys a FC port from the upper layer protocol. All the 3858 * resources associated with the port are released. 3859 **/ 3860 void 3861 destroy_port(struct lpfc_vport *vport) 3862 { 3863 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3864 struct lpfc_hba *phba = vport->phba; 3865 3866 lpfc_debugfs_terminate(vport); 3867 fc_remove_host(shost); 3868 scsi_remove_host(shost); 3869 3870 spin_lock_irq(&phba->hbalock); 3871 list_del_init(&vport->listentry); 3872 spin_unlock_irq(&phba->hbalock); 3873 3874 lpfc_cleanup(vport); 3875 return; 3876 } 3877 3878 /** 3879 * lpfc_get_instance - Get a unique integer ID 3880 * 3881 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3882 * uses the kernel idr facility to perform the task. 3883 * 3884 * Return codes: 3885 * instance - a unique integer ID allocated as the new instance. 3886 * -1 - lpfc get instance failed. 3887 **/ 3888 int 3889 lpfc_get_instance(void) 3890 { 3891 int ret; 3892 3893 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3894 return ret < 0 ? -1 : ret; 3895 } 3896 3897 /** 3898 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3899 * @shost: pointer to SCSI host data structure. 3900 * @time: elapsed time of the scan in jiffies. 3901 * 3902 * This routine is called by the SCSI layer with a SCSI host to determine 3903 * whether the scan host is finished. 3904 * 3905 * Note: there is no scan_start function as adapter initialization will have 3906 * asynchronously kicked off the link initialization. 3907 * 3908 * Return codes 3909 * 0 - SCSI host scan is not over yet. 3910 * 1 - SCSI host scan is over. 3911 **/ 3912 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 3913 { 3914 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3915 struct lpfc_hba *phba = vport->phba; 3916 int stat = 0; 3917 3918 spin_lock_irq(shost->host_lock); 3919 3920 if (vport->load_flag & FC_UNLOADING) { 3921 stat = 1; 3922 goto finished; 3923 } 3924 if (time >= msecs_to_jiffies(30 * 1000)) { 3925 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3926 "0461 Scanning longer than 30 " 3927 "seconds. Continuing initialization\n"); 3928 stat = 1; 3929 goto finished; 3930 } 3931 if (time >= msecs_to_jiffies(15 * 1000) && 3932 phba->link_state <= LPFC_LINK_DOWN) { 3933 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 3934 "0465 Link down longer than 15 " 3935 "seconds. Continuing initialization\n"); 3936 stat = 1; 3937 goto finished; 3938 } 3939 3940 if (vport->port_state != LPFC_VPORT_READY) 3941 goto finished; 3942 if (vport->num_disc_nodes || vport->fc_prli_sent) 3943 goto finished; 3944 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 3945 goto finished; 3946 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 3947 goto finished; 3948 3949 stat = 1; 3950 3951 finished: 3952 spin_unlock_irq(shost->host_lock); 3953 return stat; 3954 } 3955 3956 /** 3957 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 3958 * @shost: pointer to SCSI host data structure. 3959 * 3960 * This routine initializes a given SCSI host attributes on a FC port. The 3961 * SCSI host can be either on top of a physical port or a virtual port. 3962 **/ 3963 void lpfc_host_attrib_init(struct Scsi_Host *shost) 3964 { 3965 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 3966 struct lpfc_hba *phba = vport->phba; 3967 /* 3968 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 3969 */ 3970 3971 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 3972 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 3973 fc_host_supported_classes(shost) = FC_COS_CLASS3; 3974 3975 memset(fc_host_supported_fc4s(shost), 0, 3976 sizeof(fc_host_supported_fc4s(shost))); 3977 fc_host_supported_fc4s(shost)[2] = 1; 3978 fc_host_supported_fc4s(shost)[7] = 1; 3979 3980 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 3981 sizeof fc_host_symbolic_name(shost)); 3982 3983 fc_host_supported_speeds(shost) = 0; 3984 if (phba->lmt & LMT_32Gb) 3985 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 3986 if (phba->lmt & LMT_16Gb) 3987 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 3988 if (phba->lmt & LMT_10Gb) 3989 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 3990 if (phba->lmt & LMT_8Gb) 3991 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 3992 if (phba->lmt & LMT_4Gb) 3993 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 3994 if (phba->lmt & LMT_2Gb) 3995 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 3996 if (phba->lmt & LMT_1Gb) 3997 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 3998 3999 fc_host_maxframe_size(shost) = 4000 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4001 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4002 4003 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4004 4005 /* This value is also unchanging */ 4006 memset(fc_host_active_fc4s(shost), 0, 4007 sizeof(fc_host_active_fc4s(shost))); 4008 fc_host_active_fc4s(shost)[2] = 1; 4009 fc_host_active_fc4s(shost)[7] = 1; 4010 4011 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4012 spin_lock_irq(shost->host_lock); 4013 vport->load_flag &= ~FC_LOADING; 4014 spin_unlock_irq(shost->host_lock); 4015 } 4016 4017 /** 4018 * lpfc_stop_port_s3 - Stop SLI3 device port 4019 * @phba: pointer to lpfc hba data structure. 4020 * 4021 * This routine is invoked to stop an SLI3 device port, it stops the device 4022 * from generating interrupts and stops the device driver's timers for the 4023 * device. 4024 **/ 4025 static void 4026 lpfc_stop_port_s3(struct lpfc_hba *phba) 4027 { 4028 /* Clear all interrupt enable conditions */ 4029 writel(0, phba->HCregaddr); 4030 readl(phba->HCregaddr); /* flush */ 4031 /* Clear all pending interrupts */ 4032 writel(0xffffffff, phba->HAregaddr); 4033 readl(phba->HAregaddr); /* flush */ 4034 4035 /* Reset some HBA SLI setup states */ 4036 lpfc_stop_hba_timers(phba); 4037 phba->pport->work_port_events = 0; 4038 } 4039 4040 /** 4041 * lpfc_stop_port_s4 - Stop SLI4 device port 4042 * @phba: pointer to lpfc hba data structure. 4043 * 4044 * This routine is invoked to stop an SLI4 device port, it stops the device 4045 * from generating interrupts and stops the device driver's timers for the 4046 * device. 4047 **/ 4048 static void 4049 lpfc_stop_port_s4(struct lpfc_hba *phba) 4050 { 4051 /* Reset some HBA SLI4 setup states */ 4052 lpfc_stop_hba_timers(phba); 4053 phba->pport->work_port_events = 0; 4054 phba->sli4_hba.intr_enable = 0; 4055 } 4056 4057 /** 4058 * lpfc_stop_port - Wrapper function for stopping hba port 4059 * @phba: Pointer to HBA context object. 4060 * 4061 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4062 * the API jump table function pointer from the lpfc_hba struct. 4063 **/ 4064 void 4065 lpfc_stop_port(struct lpfc_hba *phba) 4066 { 4067 phba->lpfc_stop_port(phba); 4068 } 4069 4070 /** 4071 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4072 * @phba: Pointer to hba for which this call is being executed. 4073 * 4074 * This routine starts the timer waiting for the FCF rediscovery to complete. 4075 **/ 4076 void 4077 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4078 { 4079 unsigned long fcf_redisc_wait_tmo = 4080 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4081 /* Start fcf rediscovery wait period timer */ 4082 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4083 spin_lock_irq(&phba->hbalock); 4084 /* Allow action to new fcf asynchronous event */ 4085 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4086 /* Mark the FCF rediscovery pending state */ 4087 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4088 spin_unlock_irq(&phba->hbalock); 4089 } 4090 4091 /** 4092 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4093 * @ptr: Map to lpfc_hba data structure pointer. 4094 * 4095 * This routine is invoked when waiting for FCF table rediscover has been 4096 * timed out. If new FCF record(s) has (have) been discovered during the 4097 * wait period, a new FCF event shall be added to the FCOE async event 4098 * list, and then worker thread shall be waked up for processing from the 4099 * worker thread context. 4100 **/ 4101 static void 4102 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4103 { 4104 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4105 4106 /* Don't send FCF rediscovery event if timer cancelled */ 4107 spin_lock_irq(&phba->hbalock); 4108 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4109 spin_unlock_irq(&phba->hbalock); 4110 return; 4111 } 4112 /* Clear FCF rediscovery timer pending flag */ 4113 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4114 /* FCF rediscovery event to worker thread */ 4115 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4116 spin_unlock_irq(&phba->hbalock); 4117 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4118 "2776 FCF rediscover quiescent timer expired\n"); 4119 /* wake up worker thread */ 4120 lpfc_worker_wake_up(phba); 4121 } 4122 4123 /** 4124 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4125 * @phba: pointer to lpfc hba data structure. 4126 * @acqe_link: pointer to the async link completion queue entry. 4127 * 4128 * This routine is to parse the SLI4 link-attention link fault code and 4129 * translate it into the base driver's read link attention mailbox command 4130 * status. 4131 * 4132 * Return: Link-attention status in terms of base driver's coding. 4133 **/ 4134 static uint16_t 4135 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4136 struct lpfc_acqe_link *acqe_link) 4137 { 4138 uint16_t latt_fault; 4139 4140 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4141 case LPFC_ASYNC_LINK_FAULT_NONE: 4142 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4143 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4144 latt_fault = 0; 4145 break; 4146 default: 4147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4148 "0398 Invalid link fault code: x%x\n", 4149 bf_get(lpfc_acqe_link_fault, acqe_link)); 4150 latt_fault = MBXERR_ERROR; 4151 break; 4152 } 4153 return latt_fault; 4154 } 4155 4156 /** 4157 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4158 * @phba: pointer to lpfc hba data structure. 4159 * @acqe_link: pointer to the async link completion queue entry. 4160 * 4161 * This routine is to parse the SLI4 link attention type and translate it 4162 * into the base driver's link attention type coding. 4163 * 4164 * Return: Link attention type in terms of base driver's coding. 4165 **/ 4166 static uint8_t 4167 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4168 struct lpfc_acqe_link *acqe_link) 4169 { 4170 uint8_t att_type; 4171 4172 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4173 case LPFC_ASYNC_LINK_STATUS_DOWN: 4174 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4175 att_type = LPFC_ATT_LINK_DOWN; 4176 break; 4177 case LPFC_ASYNC_LINK_STATUS_UP: 4178 /* Ignore physical link up events - wait for logical link up */ 4179 att_type = LPFC_ATT_RESERVED; 4180 break; 4181 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4182 att_type = LPFC_ATT_LINK_UP; 4183 break; 4184 default: 4185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4186 "0399 Invalid link attention type: x%x\n", 4187 bf_get(lpfc_acqe_link_status, acqe_link)); 4188 att_type = LPFC_ATT_RESERVED; 4189 break; 4190 } 4191 return att_type; 4192 } 4193 4194 /** 4195 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4196 * @phba: pointer to lpfc hba data structure. 4197 * 4198 * This routine is to get an SLI3 FC port's link speed in Mbps. 4199 * 4200 * Return: link speed in terms of Mbps. 4201 **/ 4202 uint32_t 4203 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4204 { 4205 uint32_t link_speed; 4206 4207 if (!lpfc_is_link_up(phba)) 4208 return 0; 4209 4210 if (phba->sli_rev <= LPFC_SLI_REV3) { 4211 switch (phba->fc_linkspeed) { 4212 case LPFC_LINK_SPEED_1GHZ: 4213 link_speed = 1000; 4214 break; 4215 case LPFC_LINK_SPEED_2GHZ: 4216 link_speed = 2000; 4217 break; 4218 case LPFC_LINK_SPEED_4GHZ: 4219 link_speed = 4000; 4220 break; 4221 case LPFC_LINK_SPEED_8GHZ: 4222 link_speed = 8000; 4223 break; 4224 case LPFC_LINK_SPEED_10GHZ: 4225 link_speed = 10000; 4226 break; 4227 case LPFC_LINK_SPEED_16GHZ: 4228 link_speed = 16000; 4229 break; 4230 default: 4231 link_speed = 0; 4232 } 4233 } else { 4234 if (phba->sli4_hba.link_state.logical_speed) 4235 link_speed = 4236 phba->sli4_hba.link_state.logical_speed; 4237 else 4238 link_speed = phba->sli4_hba.link_state.speed; 4239 } 4240 return link_speed; 4241 } 4242 4243 /** 4244 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4245 * @phba: pointer to lpfc hba data structure. 4246 * @evt_code: asynchronous event code. 4247 * @speed_code: asynchronous event link speed code. 4248 * 4249 * This routine is to parse the giving SLI4 async event link speed code into 4250 * value of Mbps for the link speed. 4251 * 4252 * Return: link speed in terms of Mbps. 4253 **/ 4254 static uint32_t 4255 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4256 uint8_t speed_code) 4257 { 4258 uint32_t port_speed; 4259 4260 switch (evt_code) { 4261 case LPFC_TRAILER_CODE_LINK: 4262 switch (speed_code) { 4263 case LPFC_ASYNC_LINK_SPEED_ZERO: 4264 port_speed = 0; 4265 break; 4266 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4267 port_speed = 10; 4268 break; 4269 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4270 port_speed = 100; 4271 break; 4272 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4273 port_speed = 1000; 4274 break; 4275 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4276 port_speed = 10000; 4277 break; 4278 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4279 port_speed = 20000; 4280 break; 4281 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4282 port_speed = 25000; 4283 break; 4284 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4285 port_speed = 40000; 4286 break; 4287 default: 4288 port_speed = 0; 4289 } 4290 break; 4291 case LPFC_TRAILER_CODE_FC: 4292 switch (speed_code) { 4293 case LPFC_FC_LA_SPEED_UNKNOWN: 4294 port_speed = 0; 4295 break; 4296 case LPFC_FC_LA_SPEED_1G: 4297 port_speed = 1000; 4298 break; 4299 case LPFC_FC_LA_SPEED_2G: 4300 port_speed = 2000; 4301 break; 4302 case LPFC_FC_LA_SPEED_4G: 4303 port_speed = 4000; 4304 break; 4305 case LPFC_FC_LA_SPEED_8G: 4306 port_speed = 8000; 4307 break; 4308 case LPFC_FC_LA_SPEED_10G: 4309 port_speed = 10000; 4310 break; 4311 case LPFC_FC_LA_SPEED_16G: 4312 port_speed = 16000; 4313 break; 4314 case LPFC_FC_LA_SPEED_32G: 4315 port_speed = 32000; 4316 break; 4317 default: 4318 port_speed = 0; 4319 } 4320 break; 4321 default: 4322 port_speed = 0; 4323 } 4324 return port_speed; 4325 } 4326 4327 /** 4328 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4329 * @phba: pointer to lpfc hba data structure. 4330 * @acqe_link: pointer to the async link completion queue entry. 4331 * 4332 * This routine is to handle the SLI4 asynchronous FCoE link event. 4333 **/ 4334 static void 4335 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4336 struct lpfc_acqe_link *acqe_link) 4337 { 4338 struct lpfc_dmabuf *mp; 4339 LPFC_MBOXQ_t *pmb; 4340 MAILBOX_t *mb; 4341 struct lpfc_mbx_read_top *la; 4342 uint8_t att_type; 4343 int rc; 4344 4345 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4346 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4347 return; 4348 phba->fcoe_eventtag = acqe_link->event_tag; 4349 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4350 if (!pmb) { 4351 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4352 "0395 The mboxq allocation failed\n"); 4353 return; 4354 } 4355 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4356 if (!mp) { 4357 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4358 "0396 The lpfc_dmabuf allocation failed\n"); 4359 goto out_free_pmb; 4360 } 4361 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4362 if (!mp->virt) { 4363 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4364 "0397 The mbuf allocation failed\n"); 4365 goto out_free_dmabuf; 4366 } 4367 4368 /* Cleanup any outstanding ELS commands */ 4369 lpfc_els_flush_all_cmd(phba); 4370 4371 /* Block ELS IOCBs until we have done process link event */ 4372 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4373 4374 /* Update link event statistics */ 4375 phba->sli.slistat.link_event++; 4376 4377 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4378 lpfc_read_topology(phba, pmb, mp); 4379 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4380 pmb->vport = phba->pport; 4381 4382 /* Keep the link status for extra SLI4 state machine reference */ 4383 phba->sli4_hba.link_state.speed = 4384 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4385 bf_get(lpfc_acqe_link_speed, acqe_link)); 4386 phba->sli4_hba.link_state.duplex = 4387 bf_get(lpfc_acqe_link_duplex, acqe_link); 4388 phba->sli4_hba.link_state.status = 4389 bf_get(lpfc_acqe_link_status, acqe_link); 4390 phba->sli4_hba.link_state.type = 4391 bf_get(lpfc_acqe_link_type, acqe_link); 4392 phba->sli4_hba.link_state.number = 4393 bf_get(lpfc_acqe_link_number, acqe_link); 4394 phba->sli4_hba.link_state.fault = 4395 bf_get(lpfc_acqe_link_fault, acqe_link); 4396 phba->sli4_hba.link_state.logical_speed = 4397 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4398 4399 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4400 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4401 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4402 "Logical speed:%dMbps Fault:%d\n", 4403 phba->sli4_hba.link_state.speed, 4404 phba->sli4_hba.link_state.topology, 4405 phba->sli4_hba.link_state.status, 4406 phba->sli4_hba.link_state.type, 4407 phba->sli4_hba.link_state.number, 4408 phba->sli4_hba.link_state.logical_speed, 4409 phba->sli4_hba.link_state.fault); 4410 /* 4411 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4412 * topology info. Note: Optional for non FC-AL ports. 4413 */ 4414 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4415 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4416 if (rc == MBX_NOT_FINISHED) 4417 goto out_free_dmabuf; 4418 return; 4419 } 4420 /* 4421 * For FCoE Mode: fill in all the topology information we need and call 4422 * the READ_TOPOLOGY completion routine to continue without actually 4423 * sending the READ_TOPOLOGY mailbox command to the port. 4424 */ 4425 /* Parse and translate status field */ 4426 mb = &pmb->u.mb; 4427 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4428 4429 /* Parse and translate link attention fields */ 4430 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4431 la->eventTag = acqe_link->event_tag; 4432 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4433 bf_set(lpfc_mbx_read_top_link_spd, la, 4434 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4435 4436 /* Fake the the following irrelvant fields */ 4437 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4438 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4439 bf_set(lpfc_mbx_read_top_il, la, 0); 4440 bf_set(lpfc_mbx_read_top_pb, la, 0); 4441 bf_set(lpfc_mbx_read_top_fa, la, 0); 4442 bf_set(lpfc_mbx_read_top_mm, la, 0); 4443 4444 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4445 lpfc_mbx_cmpl_read_topology(phba, pmb); 4446 4447 return; 4448 4449 out_free_dmabuf: 4450 kfree(mp); 4451 out_free_pmb: 4452 mempool_free(pmb, phba->mbox_mem_pool); 4453 } 4454 4455 /** 4456 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4457 * @phba: pointer to lpfc hba data structure. 4458 * @acqe_fc: pointer to the async fc completion queue entry. 4459 * 4460 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4461 * that the event was received and then issue a read_topology mailbox command so 4462 * that the rest of the driver will treat it the same as SLI3. 4463 **/ 4464 static void 4465 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4466 { 4467 struct lpfc_dmabuf *mp; 4468 LPFC_MBOXQ_t *pmb; 4469 MAILBOX_t *mb; 4470 struct lpfc_mbx_read_top *la; 4471 int rc; 4472 4473 if (bf_get(lpfc_trailer_type, acqe_fc) != 4474 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4476 "2895 Non FC link Event detected.(%d)\n", 4477 bf_get(lpfc_trailer_type, acqe_fc)); 4478 return; 4479 } 4480 /* Keep the link status for extra SLI4 state machine reference */ 4481 phba->sli4_hba.link_state.speed = 4482 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4483 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4484 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4485 phba->sli4_hba.link_state.topology = 4486 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4487 phba->sli4_hba.link_state.status = 4488 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4489 phba->sli4_hba.link_state.type = 4490 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4491 phba->sli4_hba.link_state.number = 4492 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4493 phba->sli4_hba.link_state.fault = 4494 bf_get(lpfc_acqe_link_fault, acqe_fc); 4495 phba->sli4_hba.link_state.logical_speed = 4496 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4497 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4498 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4499 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4500 "%dMbps Fault:%d\n", 4501 phba->sli4_hba.link_state.speed, 4502 phba->sli4_hba.link_state.topology, 4503 phba->sli4_hba.link_state.status, 4504 phba->sli4_hba.link_state.type, 4505 phba->sli4_hba.link_state.number, 4506 phba->sli4_hba.link_state.logical_speed, 4507 phba->sli4_hba.link_state.fault); 4508 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4509 if (!pmb) { 4510 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4511 "2897 The mboxq allocation failed\n"); 4512 return; 4513 } 4514 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4515 if (!mp) { 4516 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4517 "2898 The lpfc_dmabuf allocation failed\n"); 4518 goto out_free_pmb; 4519 } 4520 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4521 if (!mp->virt) { 4522 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4523 "2899 The mbuf allocation failed\n"); 4524 goto out_free_dmabuf; 4525 } 4526 4527 /* Cleanup any outstanding ELS commands */ 4528 lpfc_els_flush_all_cmd(phba); 4529 4530 /* Block ELS IOCBs until we have done process link event */ 4531 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4532 4533 /* Update link event statistics */ 4534 phba->sli.slistat.link_event++; 4535 4536 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4537 lpfc_read_topology(phba, pmb, mp); 4538 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4539 pmb->vport = phba->pport; 4540 4541 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4542 /* Parse and translate status field */ 4543 mb = &pmb->u.mb; 4544 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4545 (void *)acqe_fc); 4546 4547 /* Parse and translate link attention fields */ 4548 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4549 la->eventTag = acqe_fc->event_tag; 4550 4551 if (phba->sli4_hba.link_state.status == 4552 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4553 bf_set(lpfc_mbx_read_top_att_type, la, 4554 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4555 } else { 4556 bf_set(lpfc_mbx_read_top_att_type, la, 4557 LPFC_FC_LA_TYPE_LINK_DOWN); 4558 } 4559 /* Invoke the mailbox command callback function */ 4560 lpfc_mbx_cmpl_read_topology(phba, pmb); 4561 4562 return; 4563 } 4564 4565 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4566 if (rc == MBX_NOT_FINISHED) 4567 goto out_free_dmabuf; 4568 return; 4569 4570 out_free_dmabuf: 4571 kfree(mp); 4572 out_free_pmb: 4573 mempool_free(pmb, phba->mbox_mem_pool); 4574 } 4575 4576 /** 4577 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4578 * @phba: pointer to lpfc hba data structure. 4579 * @acqe_fc: pointer to the async SLI completion queue entry. 4580 * 4581 * This routine is to handle the SLI4 asynchronous SLI events. 4582 **/ 4583 static void 4584 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4585 { 4586 char port_name; 4587 char message[128]; 4588 uint8_t status; 4589 uint8_t evt_type; 4590 uint8_t operational = 0; 4591 struct temp_event temp_event_data; 4592 struct lpfc_acqe_misconfigured_event *misconfigured; 4593 struct Scsi_Host *shost; 4594 4595 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4596 4597 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4598 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4599 "x%08x SLI Event Type:%d\n", 4600 acqe_sli->event_data1, acqe_sli->event_data2, 4601 evt_type); 4602 4603 port_name = phba->Port[0]; 4604 if (port_name == 0x00) 4605 port_name = '?'; /* get port name is empty */ 4606 4607 switch (evt_type) { 4608 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4609 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4610 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4611 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4612 4613 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4614 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4615 acqe_sli->event_data1, port_name); 4616 4617 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4618 shost = lpfc_shost_from_vport(phba->pport); 4619 fc_host_post_vendor_event(shost, fc_get_event_number(), 4620 sizeof(temp_event_data), 4621 (char *)&temp_event_data, 4622 SCSI_NL_VID_TYPE_PCI 4623 | PCI_VENDOR_ID_EMULEX); 4624 break; 4625 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4626 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4627 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4628 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4629 4630 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4631 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4632 acqe_sli->event_data1, port_name); 4633 4634 shost = lpfc_shost_from_vport(phba->pport); 4635 fc_host_post_vendor_event(shost, fc_get_event_number(), 4636 sizeof(temp_event_data), 4637 (char *)&temp_event_data, 4638 SCSI_NL_VID_TYPE_PCI 4639 | PCI_VENDOR_ID_EMULEX); 4640 break; 4641 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4642 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4643 &acqe_sli->event_data1; 4644 4645 /* fetch the status for this port */ 4646 switch (phba->sli4_hba.lnk_info.lnk_no) { 4647 case LPFC_LINK_NUMBER_0: 4648 status = bf_get(lpfc_sli_misconfigured_port0_state, 4649 &misconfigured->theEvent); 4650 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4651 &misconfigured->theEvent); 4652 break; 4653 case LPFC_LINK_NUMBER_1: 4654 status = bf_get(lpfc_sli_misconfigured_port1_state, 4655 &misconfigured->theEvent); 4656 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4657 &misconfigured->theEvent); 4658 break; 4659 case LPFC_LINK_NUMBER_2: 4660 status = bf_get(lpfc_sli_misconfigured_port2_state, 4661 &misconfigured->theEvent); 4662 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4663 &misconfigured->theEvent); 4664 break; 4665 case LPFC_LINK_NUMBER_3: 4666 status = bf_get(lpfc_sli_misconfigured_port3_state, 4667 &misconfigured->theEvent); 4668 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4669 &misconfigured->theEvent); 4670 break; 4671 default: 4672 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4673 "3296 " 4674 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4675 "event: Invalid link %d", 4676 phba->sli4_hba.lnk_info.lnk_no); 4677 return; 4678 } 4679 4680 /* Skip if optic state unchanged */ 4681 if (phba->sli4_hba.lnk_info.optic_state == status) 4682 return; 4683 4684 switch (status) { 4685 case LPFC_SLI_EVENT_STATUS_VALID: 4686 sprintf(message, "Physical Link is functional"); 4687 break; 4688 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4689 sprintf(message, "Optics faulted/incorrectly " 4690 "installed/not installed - Reseat optics, " 4691 "if issue not resolved, replace."); 4692 break; 4693 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4694 sprintf(message, 4695 "Optics of two types installed - Remove one " 4696 "optic or install matching pair of optics."); 4697 break; 4698 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4699 sprintf(message, "Incompatible optics - Replace with " 4700 "compatible optics for card to function."); 4701 break; 4702 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4703 sprintf(message, "Unqualified optics - Replace with " 4704 "Avago optics for Warranty and Technical " 4705 "Support - Link is%s operational", 4706 (operational) ? " not" : ""); 4707 break; 4708 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4709 sprintf(message, "Uncertified optics - Replace with " 4710 "Avago-certified optics to enable link " 4711 "operation - Link is%s operational", 4712 (operational) ? " not" : ""); 4713 break; 4714 default: 4715 /* firmware is reporting a status we don't know about */ 4716 sprintf(message, "Unknown event status x%02x", status); 4717 break; 4718 } 4719 phba->sli4_hba.lnk_info.optic_state = status; 4720 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4721 "3176 Port Name %c %s\n", port_name, message); 4722 break; 4723 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4724 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4725 "3192 Remote DPort Test Initiated - " 4726 "Event Data1:x%08x Event Data2: x%08x\n", 4727 acqe_sli->event_data1, acqe_sli->event_data2); 4728 break; 4729 default: 4730 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4731 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4732 "x%08x SLI Event Type:%d\n", 4733 acqe_sli->event_data1, acqe_sli->event_data2, 4734 evt_type); 4735 break; 4736 } 4737 } 4738 4739 /** 4740 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4741 * @vport: pointer to vport data structure. 4742 * 4743 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4744 * response to a CVL event. 4745 * 4746 * Return the pointer to the ndlp with the vport if successful, otherwise 4747 * return NULL. 4748 **/ 4749 static struct lpfc_nodelist * 4750 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4751 { 4752 struct lpfc_nodelist *ndlp; 4753 struct Scsi_Host *shost; 4754 struct lpfc_hba *phba; 4755 4756 if (!vport) 4757 return NULL; 4758 phba = vport->phba; 4759 if (!phba) 4760 return NULL; 4761 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4762 if (!ndlp) { 4763 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4764 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4765 if (!ndlp) 4766 return 0; 4767 /* Set the node type */ 4768 ndlp->nlp_type |= NLP_FABRIC; 4769 /* Put ndlp onto node list */ 4770 lpfc_enqueue_node(vport, ndlp); 4771 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4772 /* re-setup ndlp without removing from node list */ 4773 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4774 if (!ndlp) 4775 return 0; 4776 } 4777 if ((phba->pport->port_state < LPFC_FLOGI) && 4778 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4779 return NULL; 4780 /* If virtual link is not yet instantiated ignore CVL */ 4781 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4782 && (vport->port_state != LPFC_VPORT_FAILED)) 4783 return NULL; 4784 shost = lpfc_shost_from_vport(vport); 4785 if (!shost) 4786 return NULL; 4787 lpfc_linkdown_port(vport); 4788 lpfc_cleanup_pending_mbox(vport); 4789 spin_lock_irq(shost->host_lock); 4790 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4791 spin_unlock_irq(shost->host_lock); 4792 4793 return ndlp; 4794 } 4795 4796 /** 4797 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4798 * @vport: pointer to lpfc hba data structure. 4799 * 4800 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4801 * response to a FCF dead event. 4802 **/ 4803 static void 4804 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4805 { 4806 struct lpfc_vport **vports; 4807 int i; 4808 4809 vports = lpfc_create_vport_work_array(phba); 4810 if (vports) 4811 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4812 lpfc_sli4_perform_vport_cvl(vports[i]); 4813 lpfc_destroy_vport_work_array(phba, vports); 4814 } 4815 4816 /** 4817 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4818 * @phba: pointer to lpfc hba data structure. 4819 * @acqe_link: pointer to the async fcoe completion queue entry. 4820 * 4821 * This routine is to handle the SLI4 asynchronous fcoe event. 4822 **/ 4823 static void 4824 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4825 struct lpfc_acqe_fip *acqe_fip) 4826 { 4827 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4828 int rc; 4829 struct lpfc_vport *vport; 4830 struct lpfc_nodelist *ndlp; 4831 struct Scsi_Host *shost; 4832 int active_vlink_present; 4833 struct lpfc_vport **vports; 4834 int i; 4835 4836 phba->fc_eventTag = acqe_fip->event_tag; 4837 phba->fcoe_eventtag = acqe_fip->event_tag; 4838 switch (event_type) { 4839 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4840 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4841 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4842 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4843 LOG_DISCOVERY, 4844 "2546 New FCF event, evt_tag:x%x, " 4845 "index:x%x\n", 4846 acqe_fip->event_tag, 4847 acqe_fip->index); 4848 else 4849 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4850 LOG_DISCOVERY, 4851 "2788 FCF param modified event, " 4852 "evt_tag:x%x, index:x%x\n", 4853 acqe_fip->event_tag, 4854 acqe_fip->index); 4855 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4856 /* 4857 * During period of FCF discovery, read the FCF 4858 * table record indexed by the event to update 4859 * FCF roundrobin failover eligible FCF bmask. 4860 */ 4861 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4862 LOG_DISCOVERY, 4863 "2779 Read FCF (x%x) for updating " 4864 "roundrobin FCF failover bmask\n", 4865 acqe_fip->index); 4866 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4867 } 4868 4869 /* If the FCF discovery is in progress, do nothing. */ 4870 spin_lock_irq(&phba->hbalock); 4871 if (phba->hba_flag & FCF_TS_INPROG) { 4872 spin_unlock_irq(&phba->hbalock); 4873 break; 4874 } 4875 /* If fast FCF failover rescan event is pending, do nothing */ 4876 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4877 spin_unlock_irq(&phba->hbalock); 4878 break; 4879 } 4880 4881 /* If the FCF has been in discovered state, do nothing. */ 4882 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4883 spin_unlock_irq(&phba->hbalock); 4884 break; 4885 } 4886 spin_unlock_irq(&phba->hbalock); 4887 4888 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4889 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4890 "2770 Start FCF table scan per async FCF " 4891 "event, evt_tag:x%x, index:x%x\n", 4892 acqe_fip->event_tag, acqe_fip->index); 4893 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 4894 LPFC_FCOE_FCF_GET_FIRST); 4895 if (rc) 4896 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4897 "2547 Issue FCF scan read FCF mailbox " 4898 "command failed (x%x)\n", rc); 4899 break; 4900 4901 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 4902 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4903 "2548 FCF Table full count 0x%x tag 0x%x\n", 4904 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 4905 acqe_fip->event_tag); 4906 break; 4907 4908 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 4909 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4910 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4911 "2549 FCF (x%x) disconnected from network, " 4912 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 4913 /* 4914 * If we are in the middle of FCF failover process, clear 4915 * the corresponding FCF bit in the roundrobin bitmap. 4916 */ 4917 spin_lock_irq(&phba->hbalock); 4918 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 4919 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 4920 spin_unlock_irq(&phba->hbalock); 4921 /* Update FLOGI FCF failover eligible FCF bmask */ 4922 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 4923 break; 4924 } 4925 spin_unlock_irq(&phba->hbalock); 4926 4927 /* If the event is not for currently used fcf do nothing */ 4928 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 4929 break; 4930 4931 /* 4932 * Otherwise, request the port to rediscover the entire FCF 4933 * table for a fast recovery from case that the current FCF 4934 * is no longer valid as we are not in the middle of FCF 4935 * failover process already. 4936 */ 4937 spin_lock_irq(&phba->hbalock); 4938 /* Mark the fast failover process in progress */ 4939 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 4940 spin_unlock_irq(&phba->hbalock); 4941 4942 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4943 "2771 Start FCF fast failover process due to " 4944 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 4945 "\n", acqe_fip->event_tag, acqe_fip->index); 4946 rc = lpfc_sli4_redisc_fcf_table(phba); 4947 if (rc) { 4948 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4949 LOG_DISCOVERY, 4950 "2772 Issue FCF rediscover mabilbox " 4951 "command failed, fail through to FCF " 4952 "dead event\n"); 4953 spin_lock_irq(&phba->hbalock); 4954 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 4955 spin_unlock_irq(&phba->hbalock); 4956 /* 4957 * Last resort will fail over by treating this 4958 * as a link down to FCF registration. 4959 */ 4960 lpfc_sli4_fcf_dead_failthrough(phba); 4961 } else { 4962 /* Reset FCF roundrobin bmask for new discovery */ 4963 lpfc_sli4_clear_fcf_rr_bmask(phba); 4964 /* 4965 * Handling fast FCF failover to a DEAD FCF event is 4966 * considered equalivant to receiving CVL to all vports. 4967 */ 4968 lpfc_sli4_perform_all_vport_cvl(phba); 4969 } 4970 break; 4971 case LPFC_FIP_EVENT_TYPE_CVL: 4972 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 4973 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 4974 "2718 Clear Virtual Link Received for VPI 0x%x" 4975 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 4976 4977 vport = lpfc_find_vport_by_vpid(phba, 4978 acqe_fip->index); 4979 ndlp = lpfc_sli4_perform_vport_cvl(vport); 4980 if (!ndlp) 4981 break; 4982 active_vlink_present = 0; 4983 4984 vports = lpfc_create_vport_work_array(phba); 4985 if (vports) { 4986 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 4987 i++) { 4988 if ((!(vports[i]->fc_flag & 4989 FC_VPORT_CVL_RCVD)) && 4990 (vports[i]->port_state > LPFC_FDISC)) { 4991 active_vlink_present = 1; 4992 break; 4993 } 4994 } 4995 lpfc_destroy_vport_work_array(phba, vports); 4996 } 4997 4998 /* 4999 * Don't re-instantiate if vport is marked for deletion. 5000 * If we are here first then vport_delete is going to wait 5001 * for discovery to complete. 5002 */ 5003 if (!(vport->load_flag & FC_UNLOADING) && 5004 active_vlink_present) { 5005 /* 5006 * If there are other active VLinks present, 5007 * re-instantiate the Vlink using FDISC. 5008 */ 5009 mod_timer(&ndlp->nlp_delayfunc, 5010 jiffies + msecs_to_jiffies(1000)); 5011 shost = lpfc_shost_from_vport(vport); 5012 spin_lock_irq(shost->host_lock); 5013 ndlp->nlp_flag |= NLP_DELAY_TMO; 5014 spin_unlock_irq(shost->host_lock); 5015 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5016 vport->port_state = LPFC_FDISC; 5017 } else { 5018 /* 5019 * Otherwise, we request port to rediscover 5020 * the entire FCF table for a fast recovery 5021 * from possible case that the current FCF 5022 * is no longer valid if we are not already 5023 * in the FCF failover process. 5024 */ 5025 spin_lock_irq(&phba->hbalock); 5026 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5027 spin_unlock_irq(&phba->hbalock); 5028 break; 5029 } 5030 /* Mark the fast failover process in progress */ 5031 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5032 spin_unlock_irq(&phba->hbalock); 5033 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5034 LOG_DISCOVERY, 5035 "2773 Start FCF failover per CVL, " 5036 "evt_tag:x%x\n", acqe_fip->event_tag); 5037 rc = lpfc_sli4_redisc_fcf_table(phba); 5038 if (rc) { 5039 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5040 LOG_DISCOVERY, 5041 "2774 Issue FCF rediscover " 5042 "mabilbox command failed, " 5043 "through to CVL event\n"); 5044 spin_lock_irq(&phba->hbalock); 5045 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5046 spin_unlock_irq(&phba->hbalock); 5047 /* 5048 * Last resort will be re-try on the 5049 * the current registered FCF entry. 5050 */ 5051 lpfc_retry_pport_discovery(phba); 5052 } else 5053 /* 5054 * Reset FCF roundrobin bmask for new 5055 * discovery. 5056 */ 5057 lpfc_sli4_clear_fcf_rr_bmask(phba); 5058 } 5059 break; 5060 default: 5061 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5062 "0288 Unknown FCoE event type 0x%x event tag " 5063 "0x%x\n", event_type, acqe_fip->event_tag); 5064 break; 5065 } 5066 } 5067 5068 /** 5069 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5070 * @phba: pointer to lpfc hba data structure. 5071 * @acqe_link: pointer to the async dcbx completion queue entry. 5072 * 5073 * This routine is to handle the SLI4 asynchronous dcbx event. 5074 **/ 5075 static void 5076 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5077 struct lpfc_acqe_dcbx *acqe_dcbx) 5078 { 5079 phba->fc_eventTag = acqe_dcbx->event_tag; 5080 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5081 "0290 The SLI4 DCBX asynchronous event is not " 5082 "handled yet\n"); 5083 } 5084 5085 /** 5086 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5087 * @phba: pointer to lpfc hba data structure. 5088 * @acqe_link: pointer to the async grp5 completion queue entry. 5089 * 5090 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5091 * is an asynchronous notified of a logical link speed change. The Port 5092 * reports the logical link speed in units of 10Mbps. 5093 **/ 5094 static void 5095 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5096 struct lpfc_acqe_grp5 *acqe_grp5) 5097 { 5098 uint16_t prev_ll_spd; 5099 5100 phba->fc_eventTag = acqe_grp5->event_tag; 5101 phba->fcoe_eventtag = acqe_grp5->event_tag; 5102 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5103 phba->sli4_hba.link_state.logical_speed = 5104 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5105 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5106 "2789 GRP5 Async Event: Updating logical link speed " 5107 "from %dMbps to %dMbps\n", prev_ll_spd, 5108 phba->sli4_hba.link_state.logical_speed); 5109 } 5110 5111 /** 5112 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5113 * @phba: pointer to lpfc hba data structure. 5114 * 5115 * This routine is invoked by the worker thread to process all the pending 5116 * SLI4 asynchronous events. 5117 **/ 5118 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5119 { 5120 struct lpfc_cq_event *cq_event; 5121 5122 /* First, declare the async event has been handled */ 5123 spin_lock_irq(&phba->hbalock); 5124 phba->hba_flag &= ~ASYNC_EVENT; 5125 spin_unlock_irq(&phba->hbalock); 5126 /* Now, handle all the async events */ 5127 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5128 /* Get the first event from the head of the event queue */ 5129 spin_lock_irq(&phba->hbalock); 5130 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5131 cq_event, struct lpfc_cq_event, list); 5132 spin_unlock_irq(&phba->hbalock); 5133 /* Process the asynchronous event */ 5134 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5135 case LPFC_TRAILER_CODE_LINK: 5136 lpfc_sli4_async_link_evt(phba, 5137 &cq_event->cqe.acqe_link); 5138 break; 5139 case LPFC_TRAILER_CODE_FCOE: 5140 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5141 break; 5142 case LPFC_TRAILER_CODE_DCBX: 5143 lpfc_sli4_async_dcbx_evt(phba, 5144 &cq_event->cqe.acqe_dcbx); 5145 break; 5146 case LPFC_TRAILER_CODE_GRP5: 5147 lpfc_sli4_async_grp5_evt(phba, 5148 &cq_event->cqe.acqe_grp5); 5149 break; 5150 case LPFC_TRAILER_CODE_FC: 5151 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5152 break; 5153 case LPFC_TRAILER_CODE_SLI: 5154 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5155 break; 5156 default: 5157 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5158 "1804 Invalid asynchrous event code: " 5159 "x%x\n", bf_get(lpfc_trailer_code, 5160 &cq_event->cqe.mcqe_cmpl)); 5161 break; 5162 } 5163 /* Free the completion event processed to the free pool */ 5164 lpfc_sli4_cq_event_release(phba, cq_event); 5165 } 5166 } 5167 5168 /** 5169 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5170 * @phba: pointer to lpfc hba data structure. 5171 * 5172 * This routine is invoked by the worker thread to process FCF table 5173 * rediscovery pending completion event. 5174 **/ 5175 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5176 { 5177 int rc; 5178 5179 spin_lock_irq(&phba->hbalock); 5180 /* Clear FCF rediscovery timeout event */ 5181 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5182 /* Clear driver fast failover FCF record flag */ 5183 phba->fcf.failover_rec.flag = 0; 5184 /* Set state for FCF fast failover */ 5185 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5186 spin_unlock_irq(&phba->hbalock); 5187 5188 /* Scan FCF table from the first entry to re-discover SAN */ 5189 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5190 "2777 Start post-quiescent FCF table scan\n"); 5191 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5192 if (rc) 5193 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5194 "2747 Issue FCF scan read FCF mailbox " 5195 "command failed 0x%x\n", rc); 5196 } 5197 5198 /** 5199 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5200 * @phba: pointer to lpfc hba data structure. 5201 * @dev_grp: The HBA PCI-Device group number. 5202 * 5203 * This routine is invoked to set up the per HBA PCI-Device group function 5204 * API jump table entries. 5205 * 5206 * Return: 0 if success, otherwise -ENODEV 5207 **/ 5208 int 5209 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5210 { 5211 int rc; 5212 5213 /* Set up lpfc PCI-device group */ 5214 phba->pci_dev_grp = dev_grp; 5215 5216 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5217 if (dev_grp == LPFC_PCI_DEV_OC) 5218 phba->sli_rev = LPFC_SLI_REV4; 5219 5220 /* Set up device INIT API function jump table */ 5221 rc = lpfc_init_api_table_setup(phba, dev_grp); 5222 if (rc) 5223 return -ENODEV; 5224 /* Set up SCSI API function jump table */ 5225 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5226 if (rc) 5227 return -ENODEV; 5228 /* Set up SLI API function jump table */ 5229 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5230 if (rc) 5231 return -ENODEV; 5232 /* Set up MBOX API function jump table */ 5233 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5234 if (rc) 5235 return -ENODEV; 5236 5237 return 0; 5238 } 5239 5240 /** 5241 * lpfc_log_intr_mode - Log the active interrupt mode 5242 * @phba: pointer to lpfc hba data structure. 5243 * @intr_mode: active interrupt mode adopted. 5244 * 5245 * This routine it invoked to log the currently used active interrupt mode 5246 * to the device. 5247 **/ 5248 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5249 { 5250 switch (intr_mode) { 5251 case 0: 5252 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5253 "0470 Enable INTx interrupt mode.\n"); 5254 break; 5255 case 1: 5256 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5257 "0481 Enabled MSI interrupt mode.\n"); 5258 break; 5259 case 2: 5260 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5261 "0480 Enabled MSI-X interrupt mode.\n"); 5262 break; 5263 default: 5264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5265 "0482 Illegal interrupt mode.\n"); 5266 break; 5267 } 5268 return; 5269 } 5270 5271 /** 5272 * lpfc_enable_pci_dev - Enable a generic PCI device. 5273 * @phba: pointer to lpfc hba data structure. 5274 * 5275 * This routine is invoked to enable the PCI device that is common to all 5276 * PCI devices. 5277 * 5278 * Return codes 5279 * 0 - successful 5280 * other values - error 5281 **/ 5282 static int 5283 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5284 { 5285 struct pci_dev *pdev; 5286 5287 /* Obtain PCI device reference */ 5288 if (!phba->pcidev) 5289 goto out_error; 5290 else 5291 pdev = phba->pcidev; 5292 /* Enable PCI device */ 5293 if (pci_enable_device_mem(pdev)) 5294 goto out_error; 5295 /* Request PCI resource for the device */ 5296 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5297 goto out_disable_device; 5298 /* Set up device as PCI master and save state for EEH */ 5299 pci_set_master(pdev); 5300 pci_try_set_mwi(pdev); 5301 pci_save_state(pdev); 5302 5303 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5304 if (pci_is_pcie(pdev)) 5305 pdev->needs_freset = 1; 5306 5307 return 0; 5308 5309 out_disable_device: 5310 pci_disable_device(pdev); 5311 out_error: 5312 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5313 "1401 Failed to enable pci device\n"); 5314 return -ENODEV; 5315 } 5316 5317 /** 5318 * lpfc_disable_pci_dev - Disable a generic PCI device. 5319 * @phba: pointer to lpfc hba data structure. 5320 * 5321 * This routine is invoked to disable the PCI device that is common to all 5322 * PCI devices. 5323 **/ 5324 static void 5325 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5326 { 5327 struct pci_dev *pdev; 5328 5329 /* Obtain PCI device reference */ 5330 if (!phba->pcidev) 5331 return; 5332 else 5333 pdev = phba->pcidev; 5334 /* Release PCI resource and disable PCI device */ 5335 pci_release_mem_regions(pdev); 5336 pci_disable_device(pdev); 5337 5338 return; 5339 } 5340 5341 /** 5342 * lpfc_reset_hba - Reset a hba 5343 * @phba: pointer to lpfc hba data structure. 5344 * 5345 * This routine is invoked to reset a hba device. It brings the HBA 5346 * offline, performs a board restart, and then brings the board back 5347 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5348 * on outstanding mailbox commands. 5349 **/ 5350 void 5351 lpfc_reset_hba(struct lpfc_hba *phba) 5352 { 5353 /* If resets are disabled then set error state and return. */ 5354 if (!phba->cfg_enable_hba_reset) { 5355 phba->link_state = LPFC_HBA_ERROR; 5356 return; 5357 } 5358 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5359 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5360 else 5361 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5362 lpfc_offline(phba); 5363 lpfc_sli_brdrestart(phba); 5364 lpfc_online(phba); 5365 lpfc_unblock_mgmt_io(phba); 5366 } 5367 5368 /** 5369 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5370 * @phba: pointer to lpfc hba data structure. 5371 * 5372 * This function enables the PCI SR-IOV virtual functions to a physical 5373 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5374 * enable the number of virtual functions to the physical function. As 5375 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5376 * API call does not considered as an error condition for most of the device. 5377 **/ 5378 uint16_t 5379 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5380 { 5381 struct pci_dev *pdev = phba->pcidev; 5382 uint16_t nr_virtfn; 5383 int pos; 5384 5385 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5386 if (pos == 0) 5387 return 0; 5388 5389 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5390 return nr_virtfn; 5391 } 5392 5393 /** 5394 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5395 * @phba: pointer to lpfc hba data structure. 5396 * @nr_vfn: number of virtual functions to be enabled. 5397 * 5398 * This function enables the PCI SR-IOV virtual functions to a physical 5399 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5400 * enable the number of virtual functions to the physical function. As 5401 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5402 * API call does not considered as an error condition for most of the device. 5403 **/ 5404 int 5405 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5406 { 5407 struct pci_dev *pdev = phba->pcidev; 5408 uint16_t max_nr_vfn; 5409 int rc; 5410 5411 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5412 if (nr_vfn > max_nr_vfn) { 5413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5414 "3057 Requested vfs (%d) greater than " 5415 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5416 return -EINVAL; 5417 } 5418 5419 rc = pci_enable_sriov(pdev, nr_vfn); 5420 if (rc) { 5421 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5422 "2806 Failed to enable sriov on this device " 5423 "with vfn number nr_vf:%d, rc:%d\n", 5424 nr_vfn, rc); 5425 } else 5426 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5427 "2807 Successful enable sriov on this device " 5428 "with vfn number nr_vf:%d\n", nr_vfn); 5429 return rc; 5430 } 5431 5432 /** 5433 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5434 * @phba: pointer to lpfc hba data structure. 5435 * 5436 * This routine is invoked to set up the driver internal resources before the 5437 * device specific resource setup to support the HBA device it attached to. 5438 * 5439 * Return codes 5440 * 0 - successful 5441 * other values - error 5442 **/ 5443 static int 5444 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5445 { 5446 struct lpfc_sli *psli = &phba->sli; 5447 5448 /* 5449 * Driver resources common to all SLI revisions 5450 */ 5451 atomic_set(&phba->fast_event_count, 0); 5452 spin_lock_init(&phba->hbalock); 5453 5454 /* Initialize ndlp management spinlock */ 5455 spin_lock_init(&phba->ndlp_lock); 5456 5457 INIT_LIST_HEAD(&phba->port_list); 5458 INIT_LIST_HEAD(&phba->work_list); 5459 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5460 5461 /* Initialize the wait queue head for the kernel thread */ 5462 init_waitqueue_head(&phba->work_waitq); 5463 5464 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5465 "1403 Protocols supported %s %s %s\n", 5466 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5467 "SCSI" : " "), 5468 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5469 "NVME" : " "), 5470 (phba->nvmet_support ? "NVMET" : " ")); 5471 5472 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5473 /* Initialize the scsi buffer list used by driver for scsi IO */ 5474 spin_lock_init(&phba->scsi_buf_list_get_lock); 5475 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5476 spin_lock_init(&phba->scsi_buf_list_put_lock); 5477 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5478 } 5479 5480 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5481 (phba->nvmet_support == 0)) { 5482 /* Initialize the NVME buffer list used by driver for NVME IO */ 5483 spin_lock_init(&phba->nvme_buf_list_get_lock); 5484 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5485 spin_lock_init(&phba->nvme_buf_list_put_lock); 5486 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5487 } 5488 5489 /* Initialize the fabric iocb list */ 5490 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5491 5492 /* Initialize list to save ELS buffers */ 5493 INIT_LIST_HEAD(&phba->elsbuf); 5494 5495 /* Initialize FCF connection rec list */ 5496 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5497 5498 /* Initialize OAS configuration list */ 5499 spin_lock_init(&phba->devicelock); 5500 INIT_LIST_HEAD(&phba->luns); 5501 5502 /* MBOX heartbeat timer */ 5503 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); 5504 /* Fabric block timer */ 5505 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 5506 (unsigned long)phba); 5507 /* EA polling mode timer */ 5508 setup_timer(&phba->eratt_poll, lpfc_poll_eratt, 5509 (unsigned long)phba); 5510 /* Heartbeat timer */ 5511 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); 5512 5513 return 0; 5514 } 5515 5516 /** 5517 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5518 * @phba: pointer to lpfc hba data structure. 5519 * 5520 * This routine is invoked to set up the driver internal resources specific to 5521 * support the SLI-3 HBA device it attached to. 5522 * 5523 * Return codes 5524 * 0 - successful 5525 * other values - error 5526 **/ 5527 static int 5528 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5529 { 5530 int rc; 5531 5532 /* 5533 * Initialize timers used by driver 5534 */ 5535 5536 /* FCP polling mode timer */ 5537 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, 5538 (unsigned long)phba); 5539 5540 /* Host attention work mask setup */ 5541 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5542 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5543 5544 /* Get all the module params for configuring this host */ 5545 lpfc_get_cfgparam(phba); 5546 /* Set up phase-1 common device driver resources */ 5547 5548 rc = lpfc_setup_driver_resource_phase1(phba); 5549 if (rc) 5550 return -ENODEV; 5551 5552 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5553 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5554 /* check for menlo minimum sg count */ 5555 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5556 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5557 } 5558 5559 if (!phba->sli.sli3_ring) 5560 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5561 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5562 if (!phba->sli.sli3_ring) 5563 return -ENOMEM; 5564 5565 /* 5566 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5567 * used to create the sg_dma_buf_pool must be dynamically calculated. 5568 */ 5569 5570 /* Initialize the host templates the configured values. */ 5571 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5572 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5573 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5574 5575 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5576 if (phba->cfg_enable_bg) { 5577 /* 5578 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5579 * the FCP rsp, and a BDE for each. Sice we have no control 5580 * over how many protection data segments the SCSI Layer 5581 * will hand us (ie: there could be one for every block 5582 * in the IO), we just allocate enough BDEs to accomidate 5583 * our max amount and we need to limit lpfc_sg_seg_cnt to 5584 * minimize the risk of running out. 5585 */ 5586 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5587 sizeof(struct fcp_rsp) + 5588 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5589 5590 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5591 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5592 5593 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5594 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5595 } else { 5596 /* 5597 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5598 * the FCP rsp, a BDE for each, and a BDE for up to 5599 * cfg_sg_seg_cnt data segments. 5600 */ 5601 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5602 sizeof(struct fcp_rsp) + 5603 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5604 5605 /* Total BDEs in BPL for scsi_sg_list */ 5606 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5607 } 5608 5609 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5610 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5611 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5612 phba->cfg_total_seg_cnt); 5613 5614 phba->max_vpi = LPFC_MAX_VPI; 5615 /* This will be set to correct value after config_port mbox */ 5616 phba->max_vports = 0; 5617 5618 /* 5619 * Initialize the SLI Layer to run with lpfc HBAs. 5620 */ 5621 lpfc_sli_setup(phba); 5622 lpfc_sli_queue_init(phba); 5623 5624 /* Allocate device driver memory */ 5625 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5626 return -ENOMEM; 5627 5628 /* 5629 * Enable sr-iov virtual functions if supported and configured 5630 * through the module parameter. 5631 */ 5632 if (phba->cfg_sriov_nr_virtfn > 0) { 5633 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5634 phba->cfg_sriov_nr_virtfn); 5635 if (rc) { 5636 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5637 "2808 Requested number of SR-IOV " 5638 "virtual functions (%d) is not " 5639 "supported\n", 5640 phba->cfg_sriov_nr_virtfn); 5641 phba->cfg_sriov_nr_virtfn = 0; 5642 } 5643 } 5644 5645 return 0; 5646 } 5647 5648 /** 5649 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5650 * @phba: pointer to lpfc hba data structure. 5651 * 5652 * This routine is invoked to unset the driver internal resources set up 5653 * specific for supporting the SLI-3 HBA device it attached to. 5654 **/ 5655 static void 5656 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5657 { 5658 /* Free device driver memory allocated */ 5659 lpfc_mem_free_all(phba); 5660 5661 return; 5662 } 5663 5664 /** 5665 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5666 * @phba: pointer to lpfc hba data structure. 5667 * 5668 * This routine is invoked to set up the driver internal resources specific to 5669 * support the SLI-4 HBA device it attached to. 5670 * 5671 * Return codes 5672 * 0 - successful 5673 * other values - error 5674 **/ 5675 static int 5676 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5677 { 5678 LPFC_MBOXQ_t *mboxq; 5679 MAILBOX_t *mb; 5680 int rc, i, max_buf_size; 5681 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5682 struct lpfc_mqe *mqe; 5683 int longs; 5684 int fof_vectors = 0; 5685 uint64_t wwn; 5686 5687 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5688 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5689 phba->sli4_hba.curr_disp_cpu = 0; 5690 5691 /* Get all the module params for configuring this host */ 5692 lpfc_get_cfgparam(phba); 5693 5694 /* Set up phase-1 common device driver resources */ 5695 rc = lpfc_setup_driver_resource_phase1(phba); 5696 if (rc) 5697 return -ENODEV; 5698 5699 /* Before proceed, wait for POST done and device ready */ 5700 rc = lpfc_sli4_post_status_check(phba); 5701 if (rc) 5702 return -ENODEV; 5703 5704 /* 5705 * Initialize timers used by driver 5706 */ 5707 5708 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); 5709 5710 /* FCF rediscover timer */ 5711 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 5712 (unsigned long)phba); 5713 5714 /* 5715 * Control structure for handling external multi-buffer mailbox 5716 * command pass-through. 5717 */ 5718 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5719 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5720 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5721 5722 phba->max_vpi = LPFC_MAX_VPI; 5723 5724 /* This will be set to correct value after the read_config mbox */ 5725 phba->max_vports = 0; 5726 5727 /* Program the default value of vlan_id and fc_map */ 5728 phba->valid_vlan = 0; 5729 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5730 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5731 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5732 5733 /* 5734 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5735 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5736 * The WQ create will allocate the ring. 5737 */ 5738 5739 /* 5740 * It doesn't matter what family our adapter is in, we are 5741 * limited to 2 Pages, 512 SGEs, for our SGL. 5742 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5743 */ 5744 max_buf_size = (2 * SLI4_PAGE_SIZE); 5745 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5746 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5747 5748 /* 5749 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5750 * used to create the sg_dma_buf_pool must be calculated. 5751 */ 5752 if (phba->cfg_enable_bg) { 5753 /* 5754 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5755 * the FCP rsp, and a SGE. Sice we have no control 5756 * over how many protection segments the SCSI Layer 5757 * will hand us (ie: there could be one for every block 5758 * in the IO), just allocate enough SGEs to accomidate 5759 * our max amount and we need to limit lpfc_sg_seg_cnt 5760 * to minimize the risk of running out. 5761 */ 5762 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5763 sizeof(struct fcp_rsp) + max_buf_size; 5764 5765 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5766 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5767 5768 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5769 phba->cfg_sg_seg_cnt = 5770 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5771 } else { 5772 /* 5773 * The scsi_buf for a regular I/O holds the FCP cmnd, 5774 * the FCP rsp, a SGE for each, and a SGE for up to 5775 * cfg_sg_seg_cnt data segments. 5776 */ 5777 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5778 sizeof(struct fcp_rsp) + 5779 ((phba->cfg_sg_seg_cnt + 2) * 5780 sizeof(struct sli4_sge)); 5781 5782 /* Total SGEs for scsi_sg_list */ 5783 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5784 5785 /* 5786 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5787 * need to post 1 page for the SGL. 5788 */ 5789 } 5790 5791 /* Initialize the host templates with the updated values. */ 5792 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5793 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5794 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5795 5796 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5797 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5798 else 5799 phba->cfg_sg_dma_buf_size = 5800 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5801 5802 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5803 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5804 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5805 phba->cfg_total_seg_cnt); 5806 5807 /* Initialize buffer queue management fields */ 5808 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5809 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5810 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5811 5812 /* 5813 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5814 */ 5815 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5816 /* Initialize the Abort scsi buffer list used by driver */ 5817 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5818 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5819 } 5820 5821 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5822 /* Initialize the Abort nvme buffer list used by driver */ 5823 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5824 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5825 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5826 /* Fast-path XRI aborted CQ Event work queue list */ 5827 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5828 } 5829 5830 /* This abort list used by worker thread */ 5831 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5832 spin_lock_init(&phba->sli4_hba.nvmet_io_lock); 5833 5834 /* 5835 * Initialize driver internal slow-path work queues 5836 */ 5837 5838 /* Driver internel slow-path CQ Event pool */ 5839 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5840 /* Response IOCB work queue list */ 5841 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5842 /* Asynchronous event CQ Event work queue list */ 5843 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5844 /* Fast-path XRI aborted CQ Event work queue list */ 5845 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5846 /* Slow-path XRI aborted CQ Event work queue list */ 5847 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5848 /* Receive queue CQ Event work queue list */ 5849 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5850 5851 /* Initialize extent block lists. */ 5852 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5853 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5854 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5855 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5856 5857 /* Initialize mboxq lists. If the early init routines fail 5858 * these lists need to be correctly initialized. 5859 */ 5860 INIT_LIST_HEAD(&phba->sli.mboxq); 5861 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5862 5863 /* initialize optic_state to 0xFF */ 5864 phba->sli4_hba.lnk_info.optic_state = 0xff; 5865 5866 /* Allocate device driver memory */ 5867 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5868 if (rc) 5869 return -ENOMEM; 5870 5871 /* IF Type 2 ports get initialized now. */ 5872 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5873 LPFC_SLI_INTF_IF_TYPE_2) { 5874 rc = lpfc_pci_function_reset(phba); 5875 if (unlikely(rc)) { 5876 rc = -ENODEV; 5877 goto out_free_mem; 5878 } 5879 phba->temp_sensor_support = 1; 5880 } 5881 5882 /* Create the bootstrap mailbox command */ 5883 rc = lpfc_create_bootstrap_mbox(phba); 5884 if (unlikely(rc)) 5885 goto out_free_mem; 5886 5887 /* Set up the host's endian order with the device. */ 5888 rc = lpfc_setup_endian_order(phba); 5889 if (unlikely(rc)) 5890 goto out_free_bsmbx; 5891 5892 /* Set up the hba's configuration parameters. */ 5893 rc = lpfc_sli4_read_config(phba); 5894 if (unlikely(rc)) 5895 goto out_free_bsmbx; 5896 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 5897 if (unlikely(rc)) 5898 goto out_free_bsmbx; 5899 5900 /* IF Type 0 ports get initialized now. */ 5901 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5902 LPFC_SLI_INTF_IF_TYPE_0) { 5903 rc = lpfc_pci_function_reset(phba); 5904 if (unlikely(rc)) 5905 goto out_free_bsmbx; 5906 } 5907 5908 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 5909 GFP_KERNEL); 5910 if (!mboxq) { 5911 rc = -ENOMEM; 5912 goto out_free_bsmbx; 5913 } 5914 5915 /* Check for NVMET being configured */ 5916 phba->nvmet_support = 0; 5917 if (lpfc_enable_nvmet_cnt) { 5918 5919 /* First get WWN of HBA instance */ 5920 lpfc_read_nv(phba, mboxq); 5921 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5922 if (rc != MBX_SUCCESS) { 5923 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5924 "6016 Mailbox failed , mbxCmd x%x " 5925 "READ_NV, mbxStatus x%x\n", 5926 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 5927 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 5928 mempool_free(mboxq, phba->mbox_mem_pool); 5929 rc = -EIO; 5930 goto out_free_bsmbx; 5931 } 5932 mb = &mboxq->u.mb; 5933 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 5934 sizeof(uint64_t)); 5935 wwn = cpu_to_be64(wwn); 5936 phba->sli4_hba.wwnn.u.name = wwn; 5937 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 5938 sizeof(uint64_t)); 5939 /* wwn is WWPN of HBA instance */ 5940 wwn = cpu_to_be64(wwn); 5941 phba->sli4_hba.wwpn.u.name = wwn; 5942 5943 /* Check to see if it matches any module parameter */ 5944 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 5945 if (wwn == lpfc_enable_nvmet[i]) { 5946 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 5947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5948 "6017 NVME Target %016llx\n", 5949 wwn); 5950 phba->nvmet_support = 1; /* a match */ 5951 #else 5952 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5953 "6021 Can't enable NVME Target." 5954 " NVME_TARGET_FC infrastructure" 5955 " is not in kernel\n"); 5956 #endif 5957 } 5958 } 5959 } 5960 5961 lpfc_nvme_mod_param_dep(phba); 5962 5963 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 5964 lpfc_supported_pages(mboxq); 5965 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 5966 if (!rc) { 5967 mqe = &mboxq->u.mqe; 5968 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 5969 LPFC_MAX_SUPPORTED_PAGES); 5970 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 5971 switch (pn_page[i]) { 5972 case LPFC_SLI4_PARAMETERS: 5973 phba->sli4_hba.pc_sli4_params.supported = 1; 5974 break; 5975 default: 5976 break; 5977 } 5978 } 5979 /* Read the port's SLI4 Parameters capabilities if supported. */ 5980 if (phba->sli4_hba.pc_sli4_params.supported) 5981 rc = lpfc_pc_sli4_params_get(phba, mboxq); 5982 if (rc) { 5983 mempool_free(mboxq, phba->mbox_mem_pool); 5984 rc = -EIO; 5985 goto out_free_bsmbx; 5986 } 5987 } 5988 5989 /* 5990 * Get sli4 parameters that override parameters from Port capabilities. 5991 * If this call fails, it isn't critical unless the SLI4 parameters come 5992 * back in conflict. 5993 */ 5994 rc = lpfc_get_sli4_parameters(phba, mboxq); 5995 if (rc) { 5996 if (phba->sli4_hba.extents_in_use && 5997 phba->sli4_hba.rpi_hdrs_in_use) { 5998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5999 "2999 Unsupported SLI4 Parameters " 6000 "Extents and RPI headers enabled.\n"); 6001 } 6002 mempool_free(mboxq, phba->mbox_mem_pool); 6003 goto out_free_bsmbx; 6004 } 6005 6006 mempool_free(mboxq, phba->mbox_mem_pool); 6007 6008 /* Verify OAS is supported */ 6009 lpfc_sli4_oas_verify(phba); 6010 if (phba->cfg_fof) 6011 fof_vectors = 1; 6012 6013 /* Verify all the SLI4 queues */ 6014 rc = lpfc_sli4_queue_verify(phba); 6015 if (rc) 6016 goto out_free_bsmbx; 6017 6018 /* Create driver internal CQE event pool */ 6019 rc = lpfc_sli4_cq_event_pool_create(phba); 6020 if (rc) 6021 goto out_free_bsmbx; 6022 6023 /* Initialize sgl lists per host */ 6024 lpfc_init_sgl_list(phba); 6025 6026 /* Allocate and initialize active sgl array */ 6027 rc = lpfc_init_active_sgl_array(phba); 6028 if (rc) { 6029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6030 "1430 Failed to initialize sgl list.\n"); 6031 goto out_destroy_cq_event_pool; 6032 } 6033 rc = lpfc_sli4_init_rpi_hdrs(phba); 6034 if (rc) { 6035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6036 "1432 Failed to initialize rpi headers.\n"); 6037 goto out_free_active_sgl; 6038 } 6039 6040 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6041 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6042 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6043 GFP_KERNEL); 6044 if (!phba->fcf.fcf_rr_bmask) { 6045 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6046 "2759 Failed allocate memory for FCF round " 6047 "robin failover bmask\n"); 6048 rc = -ENOMEM; 6049 goto out_remove_rpi_hdrs; 6050 } 6051 6052 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6053 sizeof(struct lpfc_hba_eq_hdl), 6054 GFP_KERNEL); 6055 if (!phba->sli4_hba.hba_eq_hdl) { 6056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6057 "2572 Failed allocate memory for " 6058 "fast-path per-EQ handle array\n"); 6059 rc = -ENOMEM; 6060 goto out_free_fcf_rr_bmask; 6061 } 6062 6063 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6064 sizeof(struct lpfc_vector_map_info), 6065 GFP_KERNEL); 6066 if (!phba->sli4_hba.cpu_map) { 6067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6068 "3327 Failed allocate memory for msi-x " 6069 "interrupt vector mapping\n"); 6070 rc = -ENOMEM; 6071 goto out_free_hba_eq_hdl; 6072 } 6073 if (lpfc_used_cpu == NULL) { 6074 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6075 GFP_KERNEL); 6076 if (!lpfc_used_cpu) { 6077 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6078 "3335 Failed allocate memory for msi-x " 6079 "interrupt vector mapping\n"); 6080 kfree(phba->sli4_hba.cpu_map); 6081 rc = -ENOMEM; 6082 goto out_free_hba_eq_hdl; 6083 } 6084 for (i = 0; i < lpfc_present_cpu; i++) 6085 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6086 } 6087 6088 /* 6089 * Enable sr-iov virtual functions if supported and configured 6090 * through the module parameter. 6091 */ 6092 if (phba->cfg_sriov_nr_virtfn > 0) { 6093 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6094 phba->cfg_sriov_nr_virtfn); 6095 if (rc) { 6096 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6097 "3020 Requested number of SR-IOV " 6098 "virtual functions (%d) is not " 6099 "supported\n", 6100 phba->cfg_sriov_nr_virtfn); 6101 phba->cfg_sriov_nr_virtfn = 0; 6102 } 6103 } 6104 6105 return 0; 6106 6107 out_free_hba_eq_hdl: 6108 kfree(phba->sli4_hba.hba_eq_hdl); 6109 out_free_fcf_rr_bmask: 6110 kfree(phba->fcf.fcf_rr_bmask); 6111 out_remove_rpi_hdrs: 6112 lpfc_sli4_remove_rpi_hdrs(phba); 6113 out_free_active_sgl: 6114 lpfc_free_active_sgl(phba); 6115 out_destroy_cq_event_pool: 6116 lpfc_sli4_cq_event_pool_destroy(phba); 6117 out_free_bsmbx: 6118 lpfc_destroy_bootstrap_mbox(phba); 6119 out_free_mem: 6120 lpfc_mem_free(phba); 6121 return rc; 6122 } 6123 6124 /** 6125 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6126 * @phba: pointer to lpfc hba data structure. 6127 * 6128 * This routine is invoked to unset the driver internal resources set up 6129 * specific for supporting the SLI-4 HBA device it attached to. 6130 **/ 6131 static void 6132 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6133 { 6134 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6135 6136 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6137 kfree(phba->sli4_hba.cpu_map); 6138 phba->sli4_hba.num_present_cpu = 0; 6139 phba->sli4_hba.num_online_cpu = 0; 6140 phba->sli4_hba.curr_disp_cpu = 0; 6141 6142 /* Free memory allocated for fast-path work queue handles */ 6143 kfree(phba->sli4_hba.hba_eq_hdl); 6144 6145 /* Free the allocated rpi headers. */ 6146 lpfc_sli4_remove_rpi_hdrs(phba); 6147 lpfc_sli4_remove_rpis(phba); 6148 6149 /* Free eligible FCF index bmask */ 6150 kfree(phba->fcf.fcf_rr_bmask); 6151 6152 /* Free the ELS sgl list */ 6153 lpfc_free_active_sgl(phba); 6154 lpfc_free_els_sgl_list(phba); 6155 lpfc_free_nvmet_sgl_list(phba); 6156 6157 /* Free the completion queue EQ event pool */ 6158 lpfc_sli4_cq_event_release_all(phba); 6159 lpfc_sli4_cq_event_pool_destroy(phba); 6160 6161 /* Release resource identifiers. */ 6162 lpfc_sli4_dealloc_resource_identifiers(phba); 6163 6164 /* Free the bsmbx region. */ 6165 lpfc_destroy_bootstrap_mbox(phba); 6166 6167 /* Free the SLI Layer memory with SLI4 HBAs */ 6168 lpfc_mem_free_all(phba); 6169 6170 /* Free the current connect table */ 6171 list_for_each_entry_safe(conn_entry, next_conn_entry, 6172 &phba->fcf_conn_rec_list, list) { 6173 list_del_init(&conn_entry->list); 6174 kfree(conn_entry); 6175 } 6176 6177 return; 6178 } 6179 6180 /** 6181 * lpfc_init_api_table_setup - Set up init api function jump table 6182 * @phba: The hba struct for which this call is being executed. 6183 * @dev_grp: The HBA PCI-Device group number. 6184 * 6185 * This routine sets up the device INIT interface API function jump table 6186 * in @phba struct. 6187 * 6188 * Returns: 0 - success, -ENODEV - failure. 6189 **/ 6190 int 6191 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6192 { 6193 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6194 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6195 phba->lpfc_selective_reset = lpfc_selective_reset; 6196 switch (dev_grp) { 6197 case LPFC_PCI_DEV_LP: 6198 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6199 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6200 phba->lpfc_stop_port = lpfc_stop_port_s3; 6201 break; 6202 case LPFC_PCI_DEV_OC: 6203 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6204 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6205 phba->lpfc_stop_port = lpfc_stop_port_s4; 6206 break; 6207 default: 6208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6209 "1431 Invalid HBA PCI-device group: 0x%x\n", 6210 dev_grp); 6211 return -ENODEV; 6212 break; 6213 } 6214 return 0; 6215 } 6216 6217 /** 6218 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6219 * @phba: pointer to lpfc hba data structure. 6220 * 6221 * This routine is invoked to set up the driver internal resources after the 6222 * device specific resource setup to support the HBA device it attached to. 6223 * 6224 * Return codes 6225 * 0 - successful 6226 * other values - error 6227 **/ 6228 static int 6229 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6230 { 6231 int error; 6232 6233 /* Startup the kernel thread for this host adapter. */ 6234 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6235 "lpfc_worker_%d", phba->brd_no); 6236 if (IS_ERR(phba->worker_thread)) { 6237 error = PTR_ERR(phba->worker_thread); 6238 return error; 6239 } 6240 6241 return 0; 6242 } 6243 6244 /** 6245 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6246 * @phba: pointer to lpfc hba data structure. 6247 * 6248 * This routine is invoked to unset the driver internal resources set up after 6249 * the device specific resource setup for supporting the HBA device it 6250 * attached to. 6251 **/ 6252 static void 6253 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6254 { 6255 /* Stop kernel worker thread */ 6256 kthread_stop(phba->worker_thread); 6257 } 6258 6259 /** 6260 * lpfc_free_iocb_list - Free iocb list. 6261 * @phba: pointer to lpfc hba data structure. 6262 * 6263 * This routine is invoked to free the driver's IOCB list and memory. 6264 **/ 6265 static void 6266 lpfc_free_iocb_list(struct lpfc_hba *phba) 6267 { 6268 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6269 6270 spin_lock_irq(&phba->hbalock); 6271 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6272 &phba->lpfc_iocb_list, list) { 6273 list_del(&iocbq_entry->list); 6274 kfree(iocbq_entry); 6275 phba->total_iocbq_bufs--; 6276 } 6277 spin_unlock_irq(&phba->hbalock); 6278 6279 return; 6280 } 6281 6282 /** 6283 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6284 * @phba: pointer to lpfc hba data structure. 6285 * 6286 * This routine is invoked to allocate and initizlize the driver's IOCB 6287 * list and set up the IOCB tag array accordingly. 6288 * 6289 * Return codes 6290 * 0 - successful 6291 * other values - error 6292 **/ 6293 static int 6294 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6295 { 6296 struct lpfc_iocbq *iocbq_entry = NULL; 6297 uint16_t iotag; 6298 int i; 6299 6300 /* Initialize and populate the iocb list per host. */ 6301 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6302 for (i = 0; i < iocb_count; i++) { 6303 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6304 if (iocbq_entry == NULL) { 6305 printk(KERN_ERR "%s: only allocated %d iocbs of " 6306 "expected %d count. Unloading driver.\n", 6307 __func__, i, LPFC_IOCB_LIST_CNT); 6308 goto out_free_iocbq; 6309 } 6310 6311 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6312 if (iotag == 0) { 6313 kfree(iocbq_entry); 6314 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6315 "Unloading driver.\n", __func__); 6316 goto out_free_iocbq; 6317 } 6318 iocbq_entry->sli4_lxritag = NO_XRI; 6319 iocbq_entry->sli4_xritag = NO_XRI; 6320 6321 spin_lock_irq(&phba->hbalock); 6322 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6323 phba->total_iocbq_bufs++; 6324 spin_unlock_irq(&phba->hbalock); 6325 } 6326 6327 return 0; 6328 6329 out_free_iocbq: 6330 lpfc_free_iocb_list(phba); 6331 6332 return -ENOMEM; 6333 } 6334 6335 /** 6336 * lpfc_free_sgl_list - Free a given sgl list. 6337 * @phba: pointer to lpfc hba data structure. 6338 * @sglq_list: pointer to the head of sgl list. 6339 * 6340 * This routine is invoked to free a give sgl list and memory. 6341 **/ 6342 void 6343 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6344 { 6345 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6346 6347 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6348 list_del(&sglq_entry->list); 6349 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6350 kfree(sglq_entry); 6351 } 6352 } 6353 6354 /** 6355 * lpfc_free_els_sgl_list - Free els sgl list. 6356 * @phba: pointer to lpfc hba data structure. 6357 * 6358 * This routine is invoked to free the driver's els sgl list and memory. 6359 **/ 6360 static void 6361 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6362 { 6363 LIST_HEAD(sglq_list); 6364 6365 /* Retrieve all els sgls from driver list */ 6366 spin_lock_irq(&phba->hbalock); 6367 spin_lock(&phba->sli4_hba.sgl_list_lock); 6368 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6369 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6370 spin_unlock_irq(&phba->hbalock); 6371 6372 /* Now free the sgl list */ 6373 lpfc_free_sgl_list(phba, &sglq_list); 6374 } 6375 6376 /** 6377 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6378 * @phba: pointer to lpfc hba data structure. 6379 * 6380 * This routine is invoked to free the driver's nvmet sgl list and memory. 6381 **/ 6382 static void 6383 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6384 { 6385 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6386 LIST_HEAD(sglq_list); 6387 6388 /* Retrieve all nvmet sgls from driver list */ 6389 spin_lock_irq(&phba->hbalock); 6390 spin_lock(&phba->sli4_hba.sgl_list_lock); 6391 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6392 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6393 spin_unlock_irq(&phba->hbalock); 6394 6395 /* Now free the sgl list */ 6396 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6397 list_del(&sglq_entry->list); 6398 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6399 kfree(sglq_entry); 6400 } 6401 } 6402 6403 /** 6404 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6405 * @phba: pointer to lpfc hba data structure. 6406 * 6407 * This routine is invoked to allocate the driver's active sgl memory. 6408 * This array will hold the sglq_entry's for active IOs. 6409 **/ 6410 static int 6411 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6412 { 6413 int size; 6414 size = sizeof(struct lpfc_sglq *); 6415 size *= phba->sli4_hba.max_cfg_param.max_xri; 6416 6417 phba->sli4_hba.lpfc_sglq_active_list = 6418 kzalloc(size, GFP_KERNEL); 6419 if (!phba->sli4_hba.lpfc_sglq_active_list) 6420 return -ENOMEM; 6421 return 0; 6422 } 6423 6424 /** 6425 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6426 * @phba: pointer to lpfc hba data structure. 6427 * 6428 * This routine is invoked to walk through the array of active sglq entries 6429 * and free all of the resources. 6430 * This is just a place holder for now. 6431 **/ 6432 static void 6433 lpfc_free_active_sgl(struct lpfc_hba *phba) 6434 { 6435 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6436 } 6437 6438 /** 6439 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6440 * @phba: pointer to lpfc hba data structure. 6441 * 6442 * This routine is invoked to allocate and initizlize the driver's sgl 6443 * list and set up the sgl xritag tag array accordingly. 6444 * 6445 **/ 6446 static void 6447 lpfc_init_sgl_list(struct lpfc_hba *phba) 6448 { 6449 /* Initialize and populate the sglq list per host/VF. */ 6450 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6451 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6452 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6453 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6454 6455 /* els xri-sgl book keeping */ 6456 phba->sli4_hba.els_xri_cnt = 0; 6457 6458 /* scsi xri-buffer book keeping */ 6459 phba->sli4_hba.scsi_xri_cnt = 0; 6460 6461 /* nvme xri-buffer book keeping */ 6462 phba->sli4_hba.nvme_xri_cnt = 0; 6463 } 6464 6465 /** 6466 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6467 * @phba: pointer to lpfc hba data structure. 6468 * 6469 * This routine is invoked to post rpi header templates to the 6470 * port for those SLI4 ports that do not support extents. This routine 6471 * posts a PAGE_SIZE memory region to the port to hold up to 6472 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6473 * and should be called only when interrupts are disabled. 6474 * 6475 * Return codes 6476 * 0 - successful 6477 * -ERROR - otherwise. 6478 **/ 6479 int 6480 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6481 { 6482 int rc = 0; 6483 struct lpfc_rpi_hdr *rpi_hdr; 6484 6485 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6486 if (!phba->sli4_hba.rpi_hdrs_in_use) 6487 return rc; 6488 if (phba->sli4_hba.extents_in_use) 6489 return -EIO; 6490 6491 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6492 if (!rpi_hdr) { 6493 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6494 "0391 Error during rpi post operation\n"); 6495 lpfc_sli4_remove_rpis(phba); 6496 rc = -ENODEV; 6497 } 6498 6499 return rc; 6500 } 6501 6502 /** 6503 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6504 * @phba: pointer to lpfc hba data structure. 6505 * 6506 * This routine is invoked to allocate a single 4KB memory region to 6507 * support rpis and stores them in the phba. This single region 6508 * provides support for up to 64 rpis. The region is used globally 6509 * by the device. 6510 * 6511 * Returns: 6512 * A valid rpi hdr on success. 6513 * A NULL pointer on any failure. 6514 **/ 6515 struct lpfc_rpi_hdr * 6516 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6517 { 6518 uint16_t rpi_limit, curr_rpi_range; 6519 struct lpfc_dmabuf *dmabuf; 6520 struct lpfc_rpi_hdr *rpi_hdr; 6521 uint32_t rpi_count; 6522 6523 /* 6524 * If the SLI4 port supports extents, posting the rpi header isn't 6525 * required. Set the expected maximum count and let the actual value 6526 * get set when extents are fully allocated. 6527 */ 6528 if (!phba->sli4_hba.rpi_hdrs_in_use) 6529 return NULL; 6530 if (phba->sli4_hba.extents_in_use) 6531 return NULL; 6532 6533 /* The limit on the logical index is just the max_rpi count. */ 6534 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base + 6535 phba->sli4_hba.max_cfg_param.max_rpi - 1; 6536 6537 spin_lock_irq(&phba->hbalock); 6538 /* 6539 * Establish the starting RPI in this header block. The starting 6540 * rpi is normalized to a zero base because the physical rpi is 6541 * port based. 6542 */ 6543 curr_rpi_range = phba->sli4_hba.next_rpi; 6544 spin_unlock_irq(&phba->hbalock); 6545 6546 /* 6547 * The port has a limited number of rpis. The increment here 6548 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value 6549 * and to allow the full max_rpi range per port. 6550 */ 6551 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit) 6552 rpi_count = rpi_limit - curr_rpi_range; 6553 else 6554 rpi_count = LPFC_RPI_HDR_COUNT; 6555 6556 if (!rpi_count) 6557 return NULL; 6558 /* 6559 * First allocate the protocol header region for the port. The 6560 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6561 */ 6562 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6563 if (!dmabuf) 6564 return NULL; 6565 6566 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6567 LPFC_HDR_TEMPLATE_SIZE, 6568 &dmabuf->phys, GFP_KERNEL); 6569 if (!dmabuf->virt) { 6570 rpi_hdr = NULL; 6571 goto err_free_dmabuf; 6572 } 6573 6574 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6575 rpi_hdr = NULL; 6576 goto err_free_coherent; 6577 } 6578 6579 /* Save the rpi header data for cleanup later. */ 6580 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6581 if (!rpi_hdr) 6582 goto err_free_coherent; 6583 6584 rpi_hdr->dmabuf = dmabuf; 6585 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6586 rpi_hdr->page_count = 1; 6587 spin_lock_irq(&phba->hbalock); 6588 6589 /* The rpi_hdr stores the logical index only. */ 6590 rpi_hdr->start_rpi = curr_rpi_range; 6591 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6592 6593 /* 6594 * The next_rpi stores the next logical module-64 rpi value used 6595 * to post physical rpis in subsequent rpi postings. 6596 */ 6597 phba->sli4_hba.next_rpi += rpi_count; 6598 spin_unlock_irq(&phba->hbalock); 6599 return rpi_hdr; 6600 6601 err_free_coherent: 6602 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6603 dmabuf->virt, dmabuf->phys); 6604 err_free_dmabuf: 6605 kfree(dmabuf); 6606 return NULL; 6607 } 6608 6609 /** 6610 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6611 * @phba: pointer to lpfc hba data structure. 6612 * 6613 * This routine is invoked to remove all memory resources allocated 6614 * to support rpis for SLI4 ports not supporting extents. This routine 6615 * presumes the caller has released all rpis consumed by fabric or port 6616 * logins and is prepared to have the header pages removed. 6617 **/ 6618 void 6619 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6620 { 6621 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6622 6623 if (!phba->sli4_hba.rpi_hdrs_in_use) 6624 goto exit; 6625 6626 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6627 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6628 list_del(&rpi_hdr->list); 6629 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6630 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6631 kfree(rpi_hdr->dmabuf); 6632 kfree(rpi_hdr); 6633 } 6634 exit: 6635 /* There are no rpis available to the port now. */ 6636 phba->sli4_hba.next_rpi = 0; 6637 } 6638 6639 /** 6640 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6641 * @pdev: pointer to pci device data structure. 6642 * 6643 * This routine is invoked to allocate the driver hba data structure for an 6644 * HBA device. If the allocation is successful, the phba reference to the 6645 * PCI device data structure is set. 6646 * 6647 * Return codes 6648 * pointer to @phba - successful 6649 * NULL - error 6650 **/ 6651 static struct lpfc_hba * 6652 lpfc_hba_alloc(struct pci_dev *pdev) 6653 { 6654 struct lpfc_hba *phba; 6655 6656 /* Allocate memory for HBA structure */ 6657 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6658 if (!phba) { 6659 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6660 return NULL; 6661 } 6662 6663 /* Set reference to PCI device in HBA structure */ 6664 phba->pcidev = pdev; 6665 6666 /* Assign an unused board number */ 6667 phba->brd_no = lpfc_get_instance(); 6668 if (phba->brd_no < 0) { 6669 kfree(phba); 6670 return NULL; 6671 } 6672 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6673 6674 spin_lock_init(&phba->ct_ev_lock); 6675 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6676 6677 return phba; 6678 } 6679 6680 /** 6681 * lpfc_hba_free - Free driver hba data structure with a device. 6682 * @phba: pointer to lpfc hba data structure. 6683 * 6684 * This routine is invoked to free the driver hba data structure with an 6685 * HBA device. 6686 **/ 6687 static void 6688 lpfc_hba_free(struct lpfc_hba *phba) 6689 { 6690 /* Release the driver assigned board number */ 6691 idr_remove(&lpfc_hba_index, phba->brd_no); 6692 6693 /* Free memory allocated with sli3 rings */ 6694 kfree(phba->sli.sli3_ring); 6695 phba->sli.sli3_ring = NULL; 6696 6697 kfree(phba); 6698 return; 6699 } 6700 6701 /** 6702 * lpfc_create_shost - Create hba physical port with associated scsi host. 6703 * @phba: pointer to lpfc hba data structure. 6704 * 6705 * This routine is invoked to create HBA physical port and associate a SCSI 6706 * host with it. 6707 * 6708 * Return codes 6709 * 0 - successful 6710 * other values - error 6711 **/ 6712 static int 6713 lpfc_create_shost(struct lpfc_hba *phba) 6714 { 6715 struct lpfc_vport *vport; 6716 struct Scsi_Host *shost; 6717 6718 /* Initialize HBA FC structure */ 6719 phba->fc_edtov = FF_DEF_EDTOV; 6720 phba->fc_ratov = FF_DEF_RATOV; 6721 phba->fc_altov = FF_DEF_ALTOV; 6722 phba->fc_arbtov = FF_DEF_ARBTOV; 6723 6724 atomic_set(&phba->sdev_cnt, 0); 6725 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6726 if (!vport) 6727 return -ENODEV; 6728 6729 shost = lpfc_shost_from_vport(vport); 6730 phba->pport = vport; 6731 6732 if (phba->nvmet_support) { 6733 /* Only 1 vport (pport) will support NVME target */ 6734 if (phba->txrdy_payload_pool == NULL) { 6735 phba->txrdy_payload_pool = pci_pool_create( 6736 "txrdy_pool", phba->pcidev, 6737 TXRDY_PAYLOAD_LEN, 16, 0); 6738 if (phba->txrdy_payload_pool) { 6739 phba->targetport = NULL; 6740 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6741 lpfc_printf_log(phba, KERN_INFO, 6742 LOG_INIT | LOG_NVME_DISC, 6743 "6076 NVME Target Found\n"); 6744 } 6745 } 6746 } 6747 6748 lpfc_debugfs_initialize(vport); 6749 /* Put reference to SCSI host to driver's device private data */ 6750 pci_set_drvdata(phba->pcidev, shost); 6751 6752 /* 6753 * At this point we are fully registered with PSA. In addition, 6754 * any initial discovery should be completed. 6755 */ 6756 vport->load_flag |= FC_ALLOW_FDMI; 6757 if (phba->cfg_enable_SmartSAN || 6758 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6759 6760 /* Setup appropriate attribute masks */ 6761 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6762 if (phba->cfg_enable_SmartSAN) 6763 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6764 else 6765 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6766 } 6767 return 0; 6768 } 6769 6770 /** 6771 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6772 * @phba: pointer to lpfc hba data structure. 6773 * 6774 * This routine is invoked to destroy HBA physical port and the associated 6775 * SCSI host. 6776 **/ 6777 static void 6778 lpfc_destroy_shost(struct lpfc_hba *phba) 6779 { 6780 struct lpfc_vport *vport = phba->pport; 6781 6782 /* Destroy physical port that associated with the SCSI host */ 6783 destroy_port(vport); 6784 6785 return; 6786 } 6787 6788 /** 6789 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6790 * @phba: pointer to lpfc hba data structure. 6791 * @shost: the shost to be used to detect Block guard settings. 6792 * 6793 * This routine sets up the local Block guard protocol settings for @shost. 6794 * This routine also allocates memory for debugging bg buffers. 6795 **/ 6796 static void 6797 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6798 { 6799 uint32_t old_mask; 6800 uint32_t old_guard; 6801 6802 int pagecnt = 10; 6803 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6804 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6805 "1478 Registering BlockGuard with the " 6806 "SCSI layer\n"); 6807 6808 old_mask = phba->cfg_prot_mask; 6809 old_guard = phba->cfg_prot_guard; 6810 6811 /* Only allow supported values */ 6812 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6813 SHOST_DIX_TYPE0_PROTECTION | 6814 SHOST_DIX_TYPE1_PROTECTION); 6815 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6816 SHOST_DIX_GUARD_CRC); 6817 6818 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6819 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6820 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6821 6822 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6823 if ((old_mask != phba->cfg_prot_mask) || 6824 (old_guard != phba->cfg_prot_guard)) 6825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6826 "1475 Registering BlockGuard with the " 6827 "SCSI layer: mask %d guard %d\n", 6828 phba->cfg_prot_mask, 6829 phba->cfg_prot_guard); 6830 6831 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6832 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6833 } else 6834 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6835 "1479 Not Registering BlockGuard with the SCSI " 6836 "layer, Bad protection parameters: %d %d\n", 6837 old_mask, old_guard); 6838 } 6839 6840 if (!_dump_buf_data) { 6841 while (pagecnt) { 6842 spin_lock_init(&_dump_buf_lock); 6843 _dump_buf_data = 6844 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6845 if (_dump_buf_data) { 6846 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6847 "9043 BLKGRD: allocated %d pages for " 6848 "_dump_buf_data at 0x%p\n", 6849 (1 << pagecnt), _dump_buf_data); 6850 _dump_buf_data_order = pagecnt; 6851 memset(_dump_buf_data, 0, 6852 ((1 << PAGE_SHIFT) << pagecnt)); 6853 break; 6854 } else 6855 --pagecnt; 6856 } 6857 if (!_dump_buf_data_order) 6858 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6859 "9044 BLKGRD: ERROR unable to allocate " 6860 "memory for hexdump\n"); 6861 } else 6862 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6863 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6864 "\n", _dump_buf_data); 6865 if (!_dump_buf_dif) { 6866 while (pagecnt) { 6867 _dump_buf_dif = 6868 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6869 if (_dump_buf_dif) { 6870 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6871 "9046 BLKGRD: allocated %d pages for " 6872 "_dump_buf_dif at 0x%p\n", 6873 (1 << pagecnt), _dump_buf_dif); 6874 _dump_buf_dif_order = pagecnt; 6875 memset(_dump_buf_dif, 0, 6876 ((1 << PAGE_SHIFT) << pagecnt)); 6877 break; 6878 } else 6879 --pagecnt; 6880 } 6881 if (!_dump_buf_dif_order) 6882 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6883 "9047 BLKGRD: ERROR unable to allocate " 6884 "memory for hexdump\n"); 6885 } else 6886 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6887 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 6888 _dump_buf_dif); 6889 } 6890 6891 /** 6892 * lpfc_post_init_setup - Perform necessary device post initialization setup. 6893 * @phba: pointer to lpfc hba data structure. 6894 * 6895 * This routine is invoked to perform all the necessary post initialization 6896 * setup for the device. 6897 **/ 6898 static void 6899 lpfc_post_init_setup(struct lpfc_hba *phba) 6900 { 6901 struct Scsi_Host *shost; 6902 struct lpfc_adapter_event_header adapter_event; 6903 6904 /* Get the default values for Model Name and Description */ 6905 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 6906 6907 /* 6908 * hba setup may have changed the hba_queue_depth so we need to 6909 * adjust the value of can_queue. 6910 */ 6911 shost = pci_get_drvdata(phba->pcidev); 6912 shost->can_queue = phba->cfg_hba_queue_depth - 10; 6913 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 6914 lpfc_setup_bg(phba, shost); 6915 6916 lpfc_host_attrib_init(shost); 6917 6918 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 6919 spin_lock_irq(shost->host_lock); 6920 lpfc_poll_start_timer(phba); 6921 spin_unlock_irq(shost->host_lock); 6922 } 6923 6924 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6925 "0428 Perform SCSI scan\n"); 6926 /* Send board arrival event to upper layer */ 6927 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 6928 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 6929 fc_host_post_vendor_event(shost, fc_get_event_number(), 6930 sizeof(adapter_event), 6931 (char *) &adapter_event, 6932 LPFC_NL_VENDOR_ID); 6933 return; 6934 } 6935 6936 /** 6937 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 6938 * @phba: pointer to lpfc hba data structure. 6939 * 6940 * This routine is invoked to set up the PCI device memory space for device 6941 * with SLI-3 interface spec. 6942 * 6943 * Return codes 6944 * 0 - successful 6945 * other values - error 6946 **/ 6947 static int 6948 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 6949 { 6950 struct pci_dev *pdev; 6951 unsigned long bar0map_len, bar2map_len; 6952 int i, hbq_count; 6953 void *ptr; 6954 int error = -ENODEV; 6955 6956 /* Obtain PCI device reference */ 6957 if (!phba->pcidev) 6958 return error; 6959 else 6960 pdev = phba->pcidev; 6961 6962 /* Set the device DMA mask size */ 6963 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 6964 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 6965 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 6966 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 6967 return error; 6968 } 6969 } 6970 6971 /* Get the bus address of Bar0 and Bar2 and the number of bytes 6972 * required by each mapping. 6973 */ 6974 phba->pci_bar0_map = pci_resource_start(pdev, 0); 6975 bar0map_len = pci_resource_len(pdev, 0); 6976 6977 phba->pci_bar2_map = pci_resource_start(pdev, 2); 6978 bar2map_len = pci_resource_len(pdev, 2); 6979 6980 /* Map HBA SLIM to a kernel virtual address. */ 6981 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6982 if (!phba->slim_memmap_p) { 6983 dev_printk(KERN_ERR, &pdev->dev, 6984 "ioremap failed for SLIM memory.\n"); 6985 goto out; 6986 } 6987 6988 /* Map HBA Control Registers to a kernel virtual address. */ 6989 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 6990 if (!phba->ctrl_regs_memmap_p) { 6991 dev_printk(KERN_ERR, &pdev->dev, 6992 "ioremap failed for HBA control registers.\n"); 6993 goto out_iounmap_slim; 6994 } 6995 6996 /* Allocate memory for SLI-2 structures */ 6997 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 6998 &phba->slim2p.phys, GFP_KERNEL); 6999 if (!phba->slim2p.virt) 7000 goto out_iounmap; 7001 7002 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7003 phba->mbox_ext = (phba->slim2p.virt + 7004 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7005 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7006 phba->IOCBs = (phba->slim2p.virt + 7007 offsetof(struct lpfc_sli2_slim, IOCBs)); 7008 7009 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7010 lpfc_sli_hbq_size(), 7011 &phba->hbqslimp.phys, 7012 GFP_KERNEL); 7013 if (!phba->hbqslimp.virt) 7014 goto out_free_slim; 7015 7016 hbq_count = lpfc_sli_hbq_count(); 7017 ptr = phba->hbqslimp.virt; 7018 for (i = 0; i < hbq_count; ++i) { 7019 phba->hbqs[i].hbq_virt = ptr; 7020 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7021 ptr += (lpfc_hbq_defs[i]->entry_count * 7022 sizeof(struct lpfc_hbq_entry)); 7023 } 7024 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7025 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7026 7027 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7028 7029 phba->MBslimaddr = phba->slim_memmap_p; 7030 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7031 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7032 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7033 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7034 7035 return 0; 7036 7037 out_free_slim: 7038 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7039 phba->slim2p.virt, phba->slim2p.phys); 7040 out_iounmap: 7041 iounmap(phba->ctrl_regs_memmap_p); 7042 out_iounmap_slim: 7043 iounmap(phba->slim_memmap_p); 7044 out: 7045 return error; 7046 } 7047 7048 /** 7049 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7050 * @phba: pointer to lpfc hba data structure. 7051 * 7052 * This routine is invoked to unset the PCI device memory space for device 7053 * with SLI-3 interface spec. 7054 **/ 7055 static void 7056 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7057 { 7058 struct pci_dev *pdev; 7059 7060 /* Obtain PCI device reference */ 7061 if (!phba->pcidev) 7062 return; 7063 else 7064 pdev = phba->pcidev; 7065 7066 /* Free coherent DMA memory allocated */ 7067 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7068 phba->hbqslimp.virt, phba->hbqslimp.phys); 7069 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7070 phba->slim2p.virt, phba->slim2p.phys); 7071 7072 /* I/O memory unmap */ 7073 iounmap(phba->ctrl_regs_memmap_p); 7074 iounmap(phba->slim_memmap_p); 7075 7076 return; 7077 } 7078 7079 /** 7080 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7081 * @phba: pointer to lpfc hba data structure. 7082 * 7083 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7084 * done and check status. 7085 * 7086 * Return 0 if successful, otherwise -ENODEV. 7087 **/ 7088 int 7089 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7090 { 7091 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7092 struct lpfc_register reg_data; 7093 int i, port_error = 0; 7094 uint32_t if_type; 7095 7096 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7097 memset(®_data, 0, sizeof(reg_data)); 7098 if (!phba->sli4_hba.PSMPHRregaddr) 7099 return -ENODEV; 7100 7101 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7102 for (i = 0; i < 3000; i++) { 7103 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7104 &portsmphr_reg.word0) || 7105 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7106 /* Port has a fatal POST error, break out */ 7107 port_error = -ENODEV; 7108 break; 7109 } 7110 if (LPFC_POST_STAGE_PORT_READY == 7111 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7112 break; 7113 msleep(10); 7114 } 7115 7116 /* 7117 * If there was a port error during POST, then don't proceed with 7118 * other register reads as the data may not be valid. Just exit. 7119 */ 7120 if (port_error) { 7121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7122 "1408 Port Failed POST - portsmphr=0x%x, " 7123 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7124 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7125 portsmphr_reg.word0, 7126 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7127 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7128 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7129 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7130 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7131 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7132 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7133 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7134 } else { 7135 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7136 "2534 Device Info: SLIFamily=0x%x, " 7137 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7138 "SLIHint_2=0x%x, FT=0x%x\n", 7139 bf_get(lpfc_sli_intf_sli_family, 7140 &phba->sli4_hba.sli_intf), 7141 bf_get(lpfc_sli_intf_slirev, 7142 &phba->sli4_hba.sli_intf), 7143 bf_get(lpfc_sli_intf_if_type, 7144 &phba->sli4_hba.sli_intf), 7145 bf_get(lpfc_sli_intf_sli_hint1, 7146 &phba->sli4_hba.sli_intf), 7147 bf_get(lpfc_sli_intf_sli_hint2, 7148 &phba->sli4_hba.sli_intf), 7149 bf_get(lpfc_sli_intf_func_type, 7150 &phba->sli4_hba.sli_intf)); 7151 /* 7152 * Check for other Port errors during the initialization 7153 * process. Fail the load if the port did not come up 7154 * correctly. 7155 */ 7156 if_type = bf_get(lpfc_sli_intf_if_type, 7157 &phba->sli4_hba.sli_intf); 7158 switch (if_type) { 7159 case LPFC_SLI_INTF_IF_TYPE_0: 7160 phba->sli4_hba.ue_mask_lo = 7161 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7162 phba->sli4_hba.ue_mask_hi = 7163 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7164 uerrlo_reg.word0 = 7165 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7166 uerrhi_reg.word0 = 7167 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7168 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7169 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7171 "1422 Unrecoverable Error " 7172 "Detected during POST " 7173 "uerr_lo_reg=0x%x, " 7174 "uerr_hi_reg=0x%x, " 7175 "ue_mask_lo_reg=0x%x, " 7176 "ue_mask_hi_reg=0x%x\n", 7177 uerrlo_reg.word0, 7178 uerrhi_reg.word0, 7179 phba->sli4_hba.ue_mask_lo, 7180 phba->sli4_hba.ue_mask_hi); 7181 port_error = -ENODEV; 7182 } 7183 break; 7184 case LPFC_SLI_INTF_IF_TYPE_2: 7185 /* Final checks. The port status should be clean. */ 7186 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7187 ®_data.word0) || 7188 (bf_get(lpfc_sliport_status_err, ®_data) && 7189 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7190 phba->work_status[0] = 7191 readl(phba->sli4_hba.u.if_type2. 7192 ERR1regaddr); 7193 phba->work_status[1] = 7194 readl(phba->sli4_hba.u.if_type2. 7195 ERR2regaddr); 7196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7197 "2888 Unrecoverable port error " 7198 "following POST: port status reg " 7199 "0x%x, port_smphr reg 0x%x, " 7200 "error 1=0x%x, error 2=0x%x\n", 7201 reg_data.word0, 7202 portsmphr_reg.word0, 7203 phba->work_status[0], 7204 phba->work_status[1]); 7205 port_error = -ENODEV; 7206 } 7207 break; 7208 case LPFC_SLI_INTF_IF_TYPE_1: 7209 default: 7210 break; 7211 } 7212 } 7213 return port_error; 7214 } 7215 7216 /** 7217 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7218 * @phba: pointer to lpfc hba data structure. 7219 * @if_type: The SLI4 interface type getting configured. 7220 * 7221 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7222 * memory map. 7223 **/ 7224 static void 7225 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7226 { 7227 switch (if_type) { 7228 case LPFC_SLI_INTF_IF_TYPE_0: 7229 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7230 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7231 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7232 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7233 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7234 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7235 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7236 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7237 phba->sli4_hba.SLIINTFregaddr = 7238 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7239 break; 7240 case LPFC_SLI_INTF_IF_TYPE_2: 7241 phba->sli4_hba.u.if_type2.ERR1regaddr = 7242 phba->sli4_hba.conf_regs_memmap_p + 7243 LPFC_CTL_PORT_ER1_OFFSET; 7244 phba->sli4_hba.u.if_type2.ERR2regaddr = 7245 phba->sli4_hba.conf_regs_memmap_p + 7246 LPFC_CTL_PORT_ER2_OFFSET; 7247 phba->sli4_hba.u.if_type2.CTRLregaddr = 7248 phba->sli4_hba.conf_regs_memmap_p + 7249 LPFC_CTL_PORT_CTL_OFFSET; 7250 phba->sli4_hba.u.if_type2.STATUSregaddr = 7251 phba->sli4_hba.conf_regs_memmap_p + 7252 LPFC_CTL_PORT_STA_OFFSET; 7253 phba->sli4_hba.SLIINTFregaddr = 7254 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7255 phba->sli4_hba.PSMPHRregaddr = 7256 phba->sli4_hba.conf_regs_memmap_p + 7257 LPFC_CTL_PORT_SEM_OFFSET; 7258 phba->sli4_hba.RQDBregaddr = 7259 phba->sli4_hba.conf_regs_memmap_p + 7260 LPFC_ULP0_RQ_DOORBELL; 7261 phba->sli4_hba.WQDBregaddr = 7262 phba->sli4_hba.conf_regs_memmap_p + 7263 LPFC_ULP0_WQ_DOORBELL; 7264 phba->sli4_hba.EQCQDBregaddr = 7265 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7266 phba->sli4_hba.MQDBregaddr = 7267 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7268 phba->sli4_hba.BMBXregaddr = 7269 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7270 break; 7271 case LPFC_SLI_INTF_IF_TYPE_1: 7272 default: 7273 dev_printk(KERN_ERR, &phba->pcidev->dev, 7274 "FATAL - unsupported SLI4 interface type - %d\n", 7275 if_type); 7276 break; 7277 } 7278 } 7279 7280 /** 7281 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7282 * @phba: pointer to lpfc hba data structure. 7283 * 7284 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7285 * memory map. 7286 **/ 7287 static void 7288 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7289 { 7290 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7291 LPFC_SLIPORT_IF0_SMPHR; 7292 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7293 LPFC_HST_ISR0; 7294 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7295 LPFC_HST_IMR0; 7296 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7297 LPFC_HST_ISCR0; 7298 } 7299 7300 /** 7301 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7302 * @phba: pointer to lpfc hba data structure. 7303 * @vf: virtual function number 7304 * 7305 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7306 * based on the given viftual function number, @vf. 7307 * 7308 * Return 0 if successful, otherwise -ENODEV. 7309 **/ 7310 static int 7311 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7312 { 7313 if (vf > LPFC_VIR_FUNC_MAX) 7314 return -ENODEV; 7315 7316 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7317 vf * LPFC_VFR_PAGE_SIZE + 7318 LPFC_ULP0_RQ_DOORBELL); 7319 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7320 vf * LPFC_VFR_PAGE_SIZE + 7321 LPFC_ULP0_WQ_DOORBELL); 7322 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7323 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7324 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7325 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7326 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7327 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7328 return 0; 7329 } 7330 7331 /** 7332 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7333 * @phba: pointer to lpfc hba data structure. 7334 * 7335 * This routine is invoked to create the bootstrap mailbox 7336 * region consistent with the SLI-4 interface spec. This 7337 * routine allocates all memory necessary to communicate 7338 * mailbox commands to the port and sets up all alignment 7339 * needs. No locks are expected to be held when calling 7340 * this routine. 7341 * 7342 * Return codes 7343 * 0 - successful 7344 * -ENOMEM - could not allocated memory. 7345 **/ 7346 static int 7347 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7348 { 7349 uint32_t bmbx_size; 7350 struct lpfc_dmabuf *dmabuf; 7351 struct dma_address *dma_address; 7352 uint32_t pa_addr; 7353 uint64_t phys_addr; 7354 7355 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7356 if (!dmabuf) 7357 return -ENOMEM; 7358 7359 /* 7360 * The bootstrap mailbox region is comprised of 2 parts 7361 * plus an alignment restriction of 16 bytes. 7362 */ 7363 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7364 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7365 &dmabuf->phys, GFP_KERNEL); 7366 if (!dmabuf->virt) { 7367 kfree(dmabuf); 7368 return -ENOMEM; 7369 } 7370 7371 /* 7372 * Initialize the bootstrap mailbox pointers now so that the register 7373 * operations are simple later. The mailbox dma address is required 7374 * to be 16-byte aligned. Also align the virtual memory as each 7375 * maibox is copied into the bmbx mailbox region before issuing the 7376 * command to the port. 7377 */ 7378 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7379 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7380 7381 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7382 LPFC_ALIGN_16_BYTE); 7383 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7384 LPFC_ALIGN_16_BYTE); 7385 7386 /* 7387 * Set the high and low physical addresses now. The SLI4 alignment 7388 * requirement is 16 bytes and the mailbox is posted to the port 7389 * as two 30-bit addresses. The other data is a bit marking whether 7390 * the 30-bit address is the high or low address. 7391 * Upcast bmbx aphys to 64bits so shift instruction compiles 7392 * clean on 32 bit machines. 7393 */ 7394 dma_address = &phba->sli4_hba.bmbx.dma_address; 7395 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7396 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7397 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7398 LPFC_BMBX_BIT1_ADDR_HI); 7399 7400 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7401 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7402 LPFC_BMBX_BIT1_ADDR_LO); 7403 return 0; 7404 } 7405 7406 /** 7407 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7408 * @phba: pointer to lpfc hba data structure. 7409 * 7410 * This routine is invoked to teardown the bootstrap mailbox 7411 * region and release all host resources. This routine requires 7412 * the caller to ensure all mailbox commands recovered, no 7413 * additional mailbox comands are sent, and interrupts are disabled 7414 * before calling this routine. 7415 * 7416 **/ 7417 static void 7418 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7419 { 7420 dma_free_coherent(&phba->pcidev->dev, 7421 phba->sli4_hba.bmbx.bmbx_size, 7422 phba->sli4_hba.bmbx.dmabuf->virt, 7423 phba->sli4_hba.bmbx.dmabuf->phys); 7424 7425 kfree(phba->sli4_hba.bmbx.dmabuf); 7426 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7427 } 7428 7429 /** 7430 * lpfc_sli4_read_config - Get the config parameters. 7431 * @phba: pointer to lpfc hba data structure. 7432 * 7433 * This routine is invoked to read the configuration parameters from the HBA. 7434 * The configuration parameters are used to set the base and maximum values 7435 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7436 * allocation for the port. 7437 * 7438 * Return codes 7439 * 0 - successful 7440 * -ENOMEM - No available memory 7441 * -EIO - The mailbox failed to complete successfully. 7442 **/ 7443 int 7444 lpfc_sli4_read_config(struct lpfc_hba *phba) 7445 { 7446 LPFC_MBOXQ_t *pmb; 7447 struct lpfc_mbx_read_config *rd_config; 7448 union lpfc_sli4_cfg_shdr *shdr; 7449 uint32_t shdr_status, shdr_add_status; 7450 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7451 struct lpfc_rsrc_desc_fcfcoe *desc; 7452 char *pdesc_0; 7453 uint16_t forced_link_speed; 7454 uint32_t if_type; 7455 int length, i, rc = 0, rc2; 7456 7457 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7458 if (!pmb) { 7459 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7460 "2011 Unable to allocate memory for issuing " 7461 "SLI_CONFIG_SPECIAL mailbox command\n"); 7462 return -ENOMEM; 7463 } 7464 7465 lpfc_read_config(phba, pmb); 7466 7467 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7468 if (rc != MBX_SUCCESS) { 7469 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7470 "2012 Mailbox failed , mbxCmd x%x " 7471 "READ_CONFIG, mbxStatus x%x\n", 7472 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7473 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7474 rc = -EIO; 7475 } else { 7476 rd_config = &pmb->u.mqe.un.rd_config; 7477 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7478 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7479 phba->sli4_hba.lnk_info.lnk_tp = 7480 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7481 phba->sli4_hba.lnk_info.lnk_no = 7482 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7483 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7484 "3081 lnk_type:%d, lnk_numb:%d\n", 7485 phba->sli4_hba.lnk_info.lnk_tp, 7486 phba->sli4_hba.lnk_info.lnk_no); 7487 } else 7488 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7489 "3082 Mailbox (x%x) returned ldv:x0\n", 7490 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7491 phba->sli4_hba.extents_in_use = 7492 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7493 phba->sli4_hba.max_cfg_param.max_xri = 7494 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7495 phba->sli4_hba.max_cfg_param.xri_base = 7496 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7497 phba->sli4_hba.max_cfg_param.max_vpi = 7498 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7499 phba->sli4_hba.max_cfg_param.vpi_base = 7500 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7501 phba->sli4_hba.max_cfg_param.max_rpi = 7502 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7503 phba->sli4_hba.max_cfg_param.rpi_base = 7504 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7505 phba->sli4_hba.max_cfg_param.max_vfi = 7506 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7507 phba->sli4_hba.max_cfg_param.vfi_base = 7508 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7509 phba->sli4_hba.max_cfg_param.max_fcfi = 7510 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7511 phba->sli4_hba.max_cfg_param.max_eq = 7512 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7513 phba->sli4_hba.max_cfg_param.max_rq = 7514 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7515 phba->sli4_hba.max_cfg_param.max_wq = 7516 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7517 phba->sli4_hba.max_cfg_param.max_cq = 7518 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7519 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7520 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7521 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7522 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7523 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7524 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7525 phba->max_vports = phba->max_vpi; 7526 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7527 "2003 cfg params Extents? %d " 7528 "XRI(B:%d M:%d), " 7529 "VPI(B:%d M:%d) " 7530 "VFI(B:%d M:%d) " 7531 "RPI(B:%d M:%d) " 7532 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7533 phba->sli4_hba.extents_in_use, 7534 phba->sli4_hba.max_cfg_param.xri_base, 7535 phba->sli4_hba.max_cfg_param.max_xri, 7536 phba->sli4_hba.max_cfg_param.vpi_base, 7537 phba->sli4_hba.max_cfg_param.max_vpi, 7538 phba->sli4_hba.max_cfg_param.vfi_base, 7539 phba->sli4_hba.max_cfg_param.max_vfi, 7540 phba->sli4_hba.max_cfg_param.rpi_base, 7541 phba->sli4_hba.max_cfg_param.max_rpi, 7542 phba->sli4_hba.max_cfg_param.max_fcfi, 7543 phba->sli4_hba.max_cfg_param.max_eq, 7544 phba->sli4_hba.max_cfg_param.max_cq, 7545 phba->sli4_hba.max_cfg_param.max_wq, 7546 phba->sli4_hba.max_cfg_param.max_rq); 7547 7548 } 7549 7550 if (rc) 7551 goto read_cfg_out; 7552 7553 /* Update link speed if forced link speed is supported */ 7554 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7555 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7556 forced_link_speed = 7557 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7558 if (forced_link_speed) { 7559 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7560 7561 switch (forced_link_speed) { 7562 case LINK_SPEED_1G: 7563 phba->cfg_link_speed = 7564 LPFC_USER_LINK_SPEED_1G; 7565 break; 7566 case LINK_SPEED_2G: 7567 phba->cfg_link_speed = 7568 LPFC_USER_LINK_SPEED_2G; 7569 break; 7570 case LINK_SPEED_4G: 7571 phba->cfg_link_speed = 7572 LPFC_USER_LINK_SPEED_4G; 7573 break; 7574 case LINK_SPEED_8G: 7575 phba->cfg_link_speed = 7576 LPFC_USER_LINK_SPEED_8G; 7577 break; 7578 case LINK_SPEED_10G: 7579 phba->cfg_link_speed = 7580 LPFC_USER_LINK_SPEED_10G; 7581 break; 7582 case LINK_SPEED_16G: 7583 phba->cfg_link_speed = 7584 LPFC_USER_LINK_SPEED_16G; 7585 break; 7586 case LINK_SPEED_32G: 7587 phba->cfg_link_speed = 7588 LPFC_USER_LINK_SPEED_32G; 7589 break; 7590 case 0xffff: 7591 phba->cfg_link_speed = 7592 LPFC_USER_LINK_SPEED_AUTO; 7593 break; 7594 default: 7595 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7596 "0047 Unrecognized link " 7597 "speed : %d\n", 7598 forced_link_speed); 7599 phba->cfg_link_speed = 7600 LPFC_USER_LINK_SPEED_AUTO; 7601 } 7602 } 7603 } 7604 7605 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7606 length = phba->sli4_hba.max_cfg_param.max_xri - 7607 lpfc_sli4_get_els_iocb_cnt(phba); 7608 if (phba->cfg_hba_queue_depth > length) { 7609 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7610 "3361 HBA queue depth changed from %d to %d\n", 7611 phba->cfg_hba_queue_depth, length); 7612 phba->cfg_hba_queue_depth = length; 7613 } 7614 7615 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7616 LPFC_SLI_INTF_IF_TYPE_2) 7617 goto read_cfg_out; 7618 7619 /* get the pf# and vf# for SLI4 if_type 2 port */ 7620 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7621 sizeof(struct lpfc_sli4_cfg_mhdr)); 7622 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7623 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7624 length, LPFC_SLI4_MBX_EMBED); 7625 7626 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7627 shdr = (union lpfc_sli4_cfg_shdr *) 7628 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7629 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7630 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7631 if (rc2 || shdr_status || shdr_add_status) { 7632 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7633 "3026 Mailbox failed , mbxCmd x%x " 7634 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7635 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7636 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7637 goto read_cfg_out; 7638 } 7639 7640 /* search for fc_fcoe resrouce descriptor */ 7641 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7642 7643 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7644 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7645 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7646 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7647 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7648 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7649 goto read_cfg_out; 7650 7651 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7652 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7653 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7654 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7655 phba->sli4_hba.iov.pf_number = 7656 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7657 phba->sli4_hba.iov.vf_number = 7658 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7659 break; 7660 } 7661 } 7662 7663 if (i < LPFC_RSRC_DESC_MAX_NUM) 7664 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7665 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7666 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7667 phba->sli4_hba.iov.vf_number); 7668 else 7669 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7670 "3028 GET_FUNCTION_CONFIG: failed to find " 7671 "Resrouce Descriptor:x%x\n", 7672 LPFC_RSRC_DESC_TYPE_FCFCOE); 7673 7674 read_cfg_out: 7675 mempool_free(pmb, phba->mbox_mem_pool); 7676 return rc; 7677 } 7678 7679 /** 7680 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7681 * @phba: pointer to lpfc hba data structure. 7682 * 7683 * This routine is invoked to setup the port-side endian order when 7684 * the port if_type is 0. This routine has no function for other 7685 * if_types. 7686 * 7687 * Return codes 7688 * 0 - successful 7689 * -ENOMEM - No available memory 7690 * -EIO - The mailbox failed to complete successfully. 7691 **/ 7692 static int 7693 lpfc_setup_endian_order(struct lpfc_hba *phba) 7694 { 7695 LPFC_MBOXQ_t *mboxq; 7696 uint32_t if_type, rc = 0; 7697 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7698 HOST_ENDIAN_HIGH_WORD1}; 7699 7700 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7701 switch (if_type) { 7702 case LPFC_SLI_INTF_IF_TYPE_0: 7703 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7704 GFP_KERNEL); 7705 if (!mboxq) { 7706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7707 "0492 Unable to allocate memory for " 7708 "issuing SLI_CONFIG_SPECIAL mailbox " 7709 "command\n"); 7710 return -ENOMEM; 7711 } 7712 7713 /* 7714 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7715 * two words to contain special data values and no other data. 7716 */ 7717 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7718 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7719 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7720 if (rc != MBX_SUCCESS) { 7721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7722 "0493 SLI_CONFIG_SPECIAL mailbox " 7723 "failed with status x%x\n", 7724 rc); 7725 rc = -EIO; 7726 } 7727 mempool_free(mboxq, phba->mbox_mem_pool); 7728 break; 7729 case LPFC_SLI_INTF_IF_TYPE_2: 7730 case LPFC_SLI_INTF_IF_TYPE_1: 7731 default: 7732 break; 7733 } 7734 return rc; 7735 } 7736 7737 /** 7738 * lpfc_sli4_queue_verify - Verify and update EQ counts 7739 * @phba: pointer to lpfc hba data structure. 7740 * 7741 * This routine is invoked to check the user settable queue counts for EQs. 7742 * After this routine is called the counts will be set to valid values that 7743 * adhere to the constraints of the system's interrupt vectors and the port's 7744 * queue resources. 7745 * 7746 * Return codes 7747 * 0 - successful 7748 * -ENOMEM - No available memory 7749 **/ 7750 static int 7751 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7752 { 7753 int io_channel; 7754 int fof_vectors = phba->cfg_fof ? 1 : 0; 7755 7756 /* 7757 * Sanity check for configured queue parameters against the run-time 7758 * device parameters 7759 */ 7760 7761 /* Sanity check on HBA EQ parameters */ 7762 io_channel = phba->io_channel_irqs; 7763 7764 if (phba->sli4_hba.num_online_cpu < io_channel) { 7765 lpfc_printf_log(phba, 7766 KERN_ERR, LOG_INIT, 7767 "3188 Reducing IO channels to match number of " 7768 "online CPUs: from %d to %d\n", 7769 io_channel, phba->sli4_hba.num_online_cpu); 7770 io_channel = phba->sli4_hba.num_online_cpu; 7771 } 7772 7773 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7775 "2575 Reducing IO channels to match number of " 7776 "available EQs: from %d to %d\n", 7777 io_channel, 7778 phba->sli4_hba.max_cfg_param.max_eq); 7779 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7780 } 7781 7782 /* The actual number of FCP / NVME event queues adopted */ 7783 if (io_channel != phba->io_channel_irqs) 7784 phba->io_channel_irqs = io_channel; 7785 if (phba->cfg_fcp_io_channel > io_channel) 7786 phba->cfg_fcp_io_channel = io_channel; 7787 if (phba->cfg_nvme_io_channel > io_channel) 7788 phba->cfg_nvme_io_channel = io_channel; 7789 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7790 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7791 7792 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7793 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7794 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7795 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7796 7797 /* Get EQ depth from module parameter, fake the default for now */ 7798 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7799 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7800 7801 /* Get CQ depth from module parameter, fake the default for now */ 7802 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7803 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7804 return 0; 7805 } 7806 7807 static int 7808 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7809 { 7810 struct lpfc_queue *qdesc; 7811 int cnt; 7812 7813 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7814 phba->sli4_hba.cq_ecount); 7815 if (!qdesc) { 7816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7817 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7818 wqidx); 7819 return 1; 7820 } 7821 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7822 7823 cnt = LPFC_NVME_WQSIZE; 7824 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7825 if (!qdesc) { 7826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7827 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7828 wqidx); 7829 return 1; 7830 } 7831 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7832 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7833 return 0; 7834 } 7835 7836 static int 7837 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7838 { 7839 struct lpfc_queue *qdesc; 7840 uint32_t wqesize; 7841 7842 /* Create Fast Path FCP CQs */ 7843 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7844 phba->sli4_hba.cq_ecount); 7845 if (!qdesc) { 7846 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7847 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7848 return 1; 7849 } 7850 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7851 7852 /* Create Fast Path FCP WQs */ 7853 wqesize = (phba->fcp_embed_io) ? 7854 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7855 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7856 if (!qdesc) { 7857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7858 "0503 Failed allocate fast-path FCP WQ (%d)\n", 7859 wqidx); 7860 return 1; 7861 } 7862 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 7863 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7864 return 0; 7865 } 7866 7867 /** 7868 * lpfc_sli4_queue_create - Create all the SLI4 queues 7869 * @phba: pointer to lpfc hba data structure. 7870 * 7871 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7872 * operation. For each SLI4 queue type, the parameters such as queue entry 7873 * count (queue depth) shall be taken from the module parameter. For now, 7874 * we just use some constant number as place holder. 7875 * 7876 * Return codes 7877 * 0 - successful 7878 * -ENOMEM - No availble memory 7879 * -EIO - The mailbox failed to complete successfully. 7880 **/ 7881 int 7882 lpfc_sli4_queue_create(struct lpfc_hba *phba) 7883 { 7884 struct lpfc_queue *qdesc; 7885 int idx, io_channel; 7886 7887 /* 7888 * Create HBA Record arrays. 7889 * Both NVME and FCP will share that same vectors / EQs 7890 */ 7891 io_channel = phba->io_channel_irqs; 7892 if (!io_channel) 7893 return -ERANGE; 7894 7895 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 7896 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 7897 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 7898 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 7899 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 7900 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 7901 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7902 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7903 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7904 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7905 7906 phba->sli4_hba.hba_eq = kcalloc(io_channel, 7907 sizeof(struct lpfc_queue *), 7908 GFP_KERNEL); 7909 if (!phba->sli4_hba.hba_eq) { 7910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7911 "2576 Failed allocate memory for " 7912 "fast-path EQ record array\n"); 7913 goto out_error; 7914 } 7915 7916 if (phba->cfg_fcp_io_channel) { 7917 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 7918 sizeof(struct lpfc_queue *), 7919 GFP_KERNEL); 7920 if (!phba->sli4_hba.fcp_cq) { 7921 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7922 "2577 Failed allocate memory for " 7923 "fast-path CQ record array\n"); 7924 goto out_error; 7925 } 7926 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 7927 sizeof(struct lpfc_queue *), 7928 GFP_KERNEL); 7929 if (!phba->sli4_hba.fcp_wq) { 7930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7931 "2578 Failed allocate memory for " 7932 "fast-path FCP WQ record array\n"); 7933 goto out_error; 7934 } 7935 /* 7936 * Since the first EQ can have multiple CQs associated with it, 7937 * this array is used to quickly see if we have a FCP fast-path 7938 * CQ match. 7939 */ 7940 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 7941 sizeof(uint16_t), 7942 GFP_KERNEL); 7943 if (!phba->sli4_hba.fcp_cq_map) { 7944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7945 "2545 Failed allocate memory for " 7946 "fast-path CQ map\n"); 7947 goto out_error; 7948 } 7949 } 7950 7951 if (phba->cfg_nvme_io_channel) { 7952 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 7953 sizeof(struct lpfc_queue *), 7954 GFP_KERNEL); 7955 if (!phba->sli4_hba.nvme_cq) { 7956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7957 "6077 Failed allocate memory for " 7958 "fast-path CQ record array\n"); 7959 goto out_error; 7960 } 7961 7962 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 7963 sizeof(struct lpfc_queue *), 7964 GFP_KERNEL); 7965 if (!phba->sli4_hba.nvme_wq) { 7966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7967 "2581 Failed allocate memory for " 7968 "fast-path NVME WQ record array\n"); 7969 goto out_error; 7970 } 7971 7972 /* 7973 * Since the first EQ can have multiple CQs associated with it, 7974 * this array is used to quickly see if we have a NVME fast-path 7975 * CQ match. 7976 */ 7977 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 7978 sizeof(uint16_t), 7979 GFP_KERNEL); 7980 if (!phba->sli4_hba.nvme_cq_map) { 7981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7982 "6078 Failed allocate memory for " 7983 "fast-path CQ map\n"); 7984 goto out_error; 7985 } 7986 7987 if (phba->nvmet_support) { 7988 phba->sli4_hba.nvmet_cqset = kcalloc( 7989 phba->cfg_nvmet_mrq, 7990 sizeof(struct lpfc_queue *), 7991 GFP_KERNEL); 7992 if (!phba->sli4_hba.nvmet_cqset) { 7993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7994 "3121 Fail allocate memory for " 7995 "fast-path CQ set array\n"); 7996 goto out_error; 7997 } 7998 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 7999 phba->cfg_nvmet_mrq, 8000 sizeof(struct lpfc_queue *), 8001 GFP_KERNEL); 8002 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8004 "3122 Fail allocate memory for " 8005 "fast-path RQ set hdr array\n"); 8006 goto out_error; 8007 } 8008 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8009 phba->cfg_nvmet_mrq, 8010 sizeof(struct lpfc_queue *), 8011 GFP_KERNEL); 8012 if (!phba->sli4_hba.nvmet_mrq_data) { 8013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8014 "3124 Fail allocate memory for " 8015 "fast-path RQ set data array\n"); 8016 goto out_error; 8017 } 8018 } 8019 } 8020 8021 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8022 8023 /* Create HBA Event Queues (EQs) */ 8024 for (idx = 0; idx < io_channel; idx++) { 8025 /* Create EQs */ 8026 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8027 phba->sli4_hba.eq_ecount); 8028 if (!qdesc) { 8029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8030 "0497 Failed allocate EQ (%d)\n", idx); 8031 goto out_error; 8032 } 8033 phba->sli4_hba.hba_eq[idx] = qdesc; 8034 } 8035 8036 /* FCP and NVME io channels are not required to be balanced */ 8037 8038 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8039 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8040 goto out_error; 8041 8042 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8043 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8044 goto out_error; 8045 8046 if (phba->nvmet_support) { 8047 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8048 qdesc = lpfc_sli4_queue_alloc(phba, 8049 phba->sli4_hba.cq_esize, 8050 phba->sli4_hba.cq_ecount); 8051 if (!qdesc) { 8052 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8053 "3142 Failed allocate NVME " 8054 "CQ Set (%d)\n", idx); 8055 goto out_error; 8056 } 8057 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8058 } 8059 } 8060 8061 /* 8062 * Create Slow Path Completion Queues (CQs) 8063 */ 8064 8065 /* Create slow-path Mailbox Command Complete Queue */ 8066 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8067 phba->sli4_hba.cq_ecount); 8068 if (!qdesc) { 8069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8070 "0500 Failed allocate slow-path mailbox CQ\n"); 8071 goto out_error; 8072 } 8073 phba->sli4_hba.mbx_cq = qdesc; 8074 8075 /* Create slow-path ELS Complete Queue */ 8076 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8077 phba->sli4_hba.cq_ecount); 8078 if (!qdesc) { 8079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8080 "0501 Failed allocate slow-path ELS CQ\n"); 8081 goto out_error; 8082 } 8083 phba->sli4_hba.els_cq = qdesc; 8084 8085 8086 /* 8087 * Create Slow Path Work Queues (WQs) 8088 */ 8089 8090 /* Create Mailbox Command Queue */ 8091 8092 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8093 phba->sli4_hba.mq_ecount); 8094 if (!qdesc) { 8095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8096 "0505 Failed allocate slow-path MQ\n"); 8097 goto out_error; 8098 } 8099 phba->sli4_hba.mbx_wq = qdesc; 8100 8101 /* 8102 * Create ELS Work Queues 8103 */ 8104 8105 /* Create slow-path ELS Work Queue */ 8106 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8107 phba->sli4_hba.wq_ecount); 8108 if (!qdesc) { 8109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8110 "0504 Failed allocate slow-path ELS WQ\n"); 8111 goto out_error; 8112 } 8113 phba->sli4_hba.els_wq = qdesc; 8114 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8115 8116 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8117 /* Create NVME LS Complete Queue */ 8118 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8119 phba->sli4_hba.cq_ecount); 8120 if (!qdesc) { 8121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8122 "6079 Failed allocate NVME LS CQ\n"); 8123 goto out_error; 8124 } 8125 phba->sli4_hba.nvmels_cq = qdesc; 8126 8127 /* Create NVME LS Work Queue */ 8128 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8129 phba->sli4_hba.wq_ecount); 8130 if (!qdesc) { 8131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8132 "6080 Failed allocate NVME LS WQ\n"); 8133 goto out_error; 8134 } 8135 phba->sli4_hba.nvmels_wq = qdesc; 8136 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8137 } 8138 8139 /* 8140 * Create Receive Queue (RQ) 8141 */ 8142 8143 /* Create Receive Queue for header */ 8144 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8145 phba->sli4_hba.rq_ecount); 8146 if (!qdesc) { 8147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8148 "0506 Failed allocate receive HRQ\n"); 8149 goto out_error; 8150 } 8151 phba->sli4_hba.hdr_rq = qdesc; 8152 8153 /* Create Receive Queue for data */ 8154 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8155 phba->sli4_hba.rq_ecount); 8156 if (!qdesc) { 8157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8158 "0507 Failed allocate receive DRQ\n"); 8159 goto out_error; 8160 } 8161 phba->sli4_hba.dat_rq = qdesc; 8162 8163 if (phba->nvmet_support) { 8164 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8165 /* Create NVMET Receive Queue for header */ 8166 qdesc = lpfc_sli4_queue_alloc(phba, 8167 phba->sli4_hba.rq_esize, 8168 phba->sli4_hba.rq_ecount); 8169 if (!qdesc) { 8170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8171 "3146 Failed allocate " 8172 "receive HRQ\n"); 8173 goto out_error; 8174 } 8175 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8176 8177 /* Only needed for header of RQ pair */ 8178 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8179 GFP_KERNEL); 8180 if (qdesc->rqbp == NULL) { 8181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8182 "6131 Failed allocate " 8183 "Header RQBP\n"); 8184 goto out_error; 8185 } 8186 8187 /* Create NVMET Receive Queue for data */ 8188 qdesc = lpfc_sli4_queue_alloc(phba, 8189 phba->sli4_hba.rq_esize, 8190 phba->sli4_hba.rq_ecount); 8191 if (!qdesc) { 8192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8193 "3156 Failed allocate " 8194 "receive DRQ\n"); 8195 goto out_error; 8196 } 8197 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8198 } 8199 } 8200 8201 /* Create the Queues needed for Flash Optimized Fabric operations */ 8202 if (phba->cfg_fof) 8203 lpfc_fof_queue_create(phba); 8204 return 0; 8205 8206 out_error: 8207 lpfc_sli4_queue_destroy(phba); 8208 return -ENOMEM; 8209 } 8210 8211 static inline void 8212 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8213 { 8214 if (*qp != NULL) { 8215 lpfc_sli4_queue_free(*qp); 8216 *qp = NULL; 8217 } 8218 } 8219 8220 static inline void 8221 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8222 { 8223 int idx; 8224 8225 if (*qs == NULL) 8226 return; 8227 8228 for (idx = 0; idx < max; idx++) 8229 __lpfc_sli4_release_queue(&(*qs)[idx]); 8230 8231 kfree(*qs); 8232 *qs = NULL; 8233 } 8234 8235 static inline void 8236 lpfc_sli4_release_queue_map(uint16_t **qmap) 8237 { 8238 if (*qmap != NULL) { 8239 kfree(*qmap); 8240 *qmap = NULL; 8241 } 8242 } 8243 8244 /** 8245 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8246 * @phba: pointer to lpfc hba data structure. 8247 * 8248 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8249 * operation. 8250 * 8251 * Return codes 8252 * 0 - successful 8253 * -ENOMEM - No available memory 8254 * -EIO - The mailbox failed to complete successfully. 8255 **/ 8256 void 8257 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8258 { 8259 if (phba->cfg_fof) 8260 lpfc_fof_queue_destroy(phba); 8261 8262 /* Release HBA eqs */ 8263 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8264 8265 /* Release FCP cqs */ 8266 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8267 phba->cfg_fcp_io_channel); 8268 8269 /* Release FCP wqs */ 8270 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8271 phba->cfg_fcp_io_channel); 8272 8273 /* Release FCP CQ mapping array */ 8274 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8275 8276 /* Release NVME cqs */ 8277 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8278 phba->cfg_nvme_io_channel); 8279 8280 /* Release NVME wqs */ 8281 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8282 phba->cfg_nvme_io_channel); 8283 8284 /* Release NVME CQ mapping array */ 8285 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8286 8287 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8288 phba->cfg_nvmet_mrq); 8289 8290 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8291 phba->cfg_nvmet_mrq); 8292 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8293 phba->cfg_nvmet_mrq); 8294 8295 /* Release mailbox command work queue */ 8296 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8297 8298 /* Release ELS work queue */ 8299 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8300 8301 /* Release ELS work queue */ 8302 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8303 8304 /* Release unsolicited receive queue */ 8305 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8306 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8307 8308 /* Release ELS complete queue */ 8309 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8310 8311 /* Release NVME LS complete queue */ 8312 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8313 8314 /* Release mailbox command complete queue */ 8315 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8316 8317 /* Everything on this list has been freed */ 8318 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8319 } 8320 8321 int 8322 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq, 8323 struct lpfc_queue *drq, int count) 8324 { 8325 int rc, i; 8326 struct lpfc_rqe hrqe; 8327 struct lpfc_rqe drqe; 8328 struct lpfc_rqb *rqbp; 8329 struct rqb_dmabuf *rqb_buffer; 8330 LIST_HEAD(rqb_buf_list); 8331 8332 rqbp = hrq->rqbp; 8333 for (i = 0; i < count; i++) { 8334 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba); 8335 if (!rqb_buffer) 8336 break; 8337 rqb_buffer->hrq = hrq; 8338 rqb_buffer->drq = drq; 8339 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list); 8340 } 8341 while (!list_empty(&rqb_buf_list)) { 8342 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf, 8343 hbuf.list); 8344 8345 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys); 8346 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys); 8347 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys); 8348 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys); 8349 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe); 8350 if (rc < 0) { 8351 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8352 } else { 8353 list_add_tail(&rqb_buffer->hbuf.list, 8354 &rqbp->rqb_buffer_list); 8355 rqbp->buffer_count++; 8356 } 8357 } 8358 return 1; 8359 } 8360 8361 int 8362 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8363 { 8364 struct lpfc_rqb *rqbp; 8365 struct lpfc_dmabuf *h_buf; 8366 struct rqb_dmabuf *rqb_buffer; 8367 8368 rqbp = rq->rqbp; 8369 while (!list_empty(&rqbp->rqb_buffer_list)) { 8370 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8371 struct lpfc_dmabuf, list); 8372 8373 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8374 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8375 rqbp->buffer_count--; 8376 } 8377 return 1; 8378 } 8379 8380 static int 8381 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8382 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8383 int qidx, uint32_t qtype) 8384 { 8385 struct lpfc_sli_ring *pring; 8386 int rc; 8387 8388 if (!eq || !cq || !wq) { 8389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8390 "6085 Fast-path %s (%d) not allocated\n", 8391 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8392 return -ENOMEM; 8393 } 8394 8395 /* create the Cq first */ 8396 rc = lpfc_cq_create(phba, cq, eq, 8397 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8398 if (rc) { 8399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8400 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8401 qidx, (uint32_t)rc); 8402 return rc; 8403 } 8404 8405 if (qtype != LPFC_MBOX) { 8406 /* Setup nvme_cq_map for fast lookup */ 8407 if (cq_map) 8408 *cq_map = cq->queue_id; 8409 8410 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8411 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8412 qidx, cq->queue_id, qidx, eq->queue_id); 8413 8414 /* create the wq */ 8415 rc = lpfc_wq_create(phba, wq, cq, qtype); 8416 if (rc) { 8417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8418 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8419 qidx, (uint32_t)rc); 8420 /* no need to tear down cq - caller will do so */ 8421 return rc; 8422 } 8423 8424 /* Bind this CQ/WQ to the NVME ring */ 8425 pring = wq->pring; 8426 pring->sli.sli4.wqp = (void *)wq; 8427 cq->pring = pring; 8428 8429 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8430 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8431 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8432 } else { 8433 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8434 if (rc) { 8435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8436 "0539 Failed setup of slow-path MQ: " 8437 "rc = 0x%x\n", rc); 8438 /* no need to tear down cq - caller will do so */ 8439 return rc; 8440 } 8441 8442 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8443 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8444 phba->sli4_hba.mbx_wq->queue_id, 8445 phba->sli4_hba.mbx_cq->queue_id); 8446 } 8447 8448 return 0; 8449 } 8450 8451 /** 8452 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8453 * @phba: pointer to lpfc hba data structure. 8454 * 8455 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8456 * operation. 8457 * 8458 * Return codes 8459 * 0 - successful 8460 * -ENOMEM - No available memory 8461 * -EIO - The mailbox failed to complete successfully. 8462 **/ 8463 int 8464 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8465 { 8466 uint32_t shdr_status, shdr_add_status; 8467 union lpfc_sli4_cfg_shdr *shdr; 8468 LPFC_MBOXQ_t *mboxq; 8469 int qidx; 8470 uint32_t length, io_channel; 8471 int rc = -ENOMEM; 8472 8473 /* Check for dual-ULP support */ 8474 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8475 if (!mboxq) { 8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8477 "3249 Unable to allocate memory for " 8478 "QUERY_FW_CFG mailbox command\n"); 8479 return -ENOMEM; 8480 } 8481 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8482 sizeof(struct lpfc_sli4_cfg_mhdr)); 8483 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8484 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8485 length, LPFC_SLI4_MBX_EMBED); 8486 8487 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8488 8489 shdr = (union lpfc_sli4_cfg_shdr *) 8490 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8491 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8492 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8493 if (shdr_status || shdr_add_status || rc) { 8494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8495 "3250 QUERY_FW_CFG mailbox failed with status " 8496 "x%x add_status x%x, mbx status x%x\n", 8497 shdr_status, shdr_add_status, rc); 8498 if (rc != MBX_TIMEOUT) 8499 mempool_free(mboxq, phba->mbox_mem_pool); 8500 rc = -ENXIO; 8501 goto out_error; 8502 } 8503 8504 phba->sli4_hba.fw_func_mode = 8505 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8506 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8507 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8508 phba->sli4_hba.physical_port = 8509 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8510 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8511 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8512 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8513 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8514 8515 if (rc != MBX_TIMEOUT) 8516 mempool_free(mboxq, phba->mbox_mem_pool); 8517 8518 /* 8519 * Set up HBA Event Queues (EQs) 8520 */ 8521 io_channel = phba->io_channel_irqs; 8522 8523 /* Set up HBA event queue */ 8524 if (io_channel && !phba->sli4_hba.hba_eq) { 8525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8526 "3147 Fast-path EQs not allocated\n"); 8527 rc = -ENOMEM; 8528 goto out_error; 8529 } 8530 for (qidx = 0; qidx < io_channel; qidx++) { 8531 if (!phba->sli4_hba.hba_eq[qidx]) { 8532 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8533 "0522 Fast-path EQ (%d) not " 8534 "allocated\n", qidx); 8535 rc = -ENOMEM; 8536 goto out_destroy; 8537 } 8538 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8539 phba->cfg_fcp_imax); 8540 if (rc) { 8541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8542 "0523 Failed setup of fast-path EQ " 8543 "(%d), rc = 0x%x\n", qidx, 8544 (uint32_t)rc); 8545 goto out_destroy; 8546 } 8547 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8548 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8549 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8550 } 8551 8552 if (phba->cfg_nvme_io_channel) { 8553 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8555 "6084 Fast-path NVME %s array not allocated\n", 8556 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8557 rc = -ENOMEM; 8558 goto out_destroy; 8559 } 8560 8561 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8562 rc = lpfc_create_wq_cq(phba, 8563 phba->sli4_hba.hba_eq[ 8564 qidx % io_channel], 8565 phba->sli4_hba.nvme_cq[qidx], 8566 phba->sli4_hba.nvme_wq[qidx], 8567 &phba->sli4_hba.nvme_cq_map[qidx], 8568 qidx, LPFC_NVME); 8569 if (rc) { 8570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8571 "6123 Failed to setup fastpath " 8572 "NVME WQ/CQ (%d), rc = 0x%x\n", 8573 qidx, (uint32_t)rc); 8574 goto out_destroy; 8575 } 8576 } 8577 } 8578 8579 if (phba->cfg_fcp_io_channel) { 8580 /* Set up fast-path FCP Response Complete Queue */ 8581 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8583 "3148 Fast-path FCP %s array not allocated\n", 8584 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8585 rc = -ENOMEM; 8586 goto out_destroy; 8587 } 8588 8589 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8590 rc = lpfc_create_wq_cq(phba, 8591 phba->sli4_hba.hba_eq[ 8592 qidx % io_channel], 8593 phba->sli4_hba.fcp_cq[qidx], 8594 phba->sli4_hba.fcp_wq[qidx], 8595 &phba->sli4_hba.fcp_cq_map[qidx], 8596 qidx, LPFC_FCP); 8597 if (rc) { 8598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8599 "0535 Failed to setup fastpath " 8600 "FCP WQ/CQ (%d), rc = 0x%x\n", 8601 qidx, (uint32_t)rc); 8602 goto out_destroy; 8603 } 8604 } 8605 } 8606 8607 /* 8608 * Set up Slow Path Complete Queues (CQs) 8609 */ 8610 8611 /* Set up slow-path MBOX CQ/MQ */ 8612 8613 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8615 "0528 %s not allocated\n", 8616 phba->sli4_hba.mbx_cq ? 8617 "Mailbox WQ" : "Mailbox CQ"); 8618 rc = -ENOMEM; 8619 goto out_destroy; 8620 } 8621 8622 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8623 phba->sli4_hba.mbx_cq, 8624 phba->sli4_hba.mbx_wq, 8625 NULL, 0, LPFC_MBOX); 8626 if (rc) { 8627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8628 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8629 (uint32_t)rc); 8630 goto out_destroy; 8631 } 8632 if (phba->nvmet_support) { 8633 if (!phba->sli4_hba.nvmet_cqset) { 8634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8635 "3165 Fast-path NVME CQ Set " 8636 "array not allocated\n"); 8637 rc = -ENOMEM; 8638 goto out_destroy; 8639 } 8640 if (phba->cfg_nvmet_mrq > 1) { 8641 rc = lpfc_cq_create_set(phba, 8642 phba->sli4_hba.nvmet_cqset, 8643 phba->sli4_hba.hba_eq, 8644 LPFC_WCQ, LPFC_NVMET); 8645 if (rc) { 8646 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8647 "3164 Failed setup of NVME CQ " 8648 "Set, rc = 0x%x\n", 8649 (uint32_t)rc); 8650 goto out_destroy; 8651 } 8652 } else { 8653 /* Set up NVMET Receive Complete Queue */ 8654 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8655 phba->sli4_hba.hba_eq[0], 8656 LPFC_WCQ, LPFC_NVMET); 8657 if (rc) { 8658 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8659 "6089 Failed setup NVMET CQ: " 8660 "rc = 0x%x\n", (uint32_t)rc); 8661 goto out_destroy; 8662 } 8663 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8664 "6090 NVMET CQ setup: cq-id=%d, " 8665 "parent eq-id=%d\n", 8666 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8667 phba->sli4_hba.hba_eq[0]->queue_id); 8668 } 8669 } 8670 8671 /* Set up slow-path ELS WQ/CQ */ 8672 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8674 "0530 ELS %s not allocated\n", 8675 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8676 rc = -ENOMEM; 8677 goto out_destroy; 8678 } 8679 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8680 phba->sli4_hba.els_cq, 8681 phba->sli4_hba.els_wq, 8682 NULL, 0, LPFC_ELS); 8683 if (rc) { 8684 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8685 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8686 (uint32_t)rc); 8687 goto out_destroy; 8688 } 8689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8690 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8691 phba->sli4_hba.els_wq->queue_id, 8692 phba->sli4_hba.els_cq->queue_id); 8693 8694 if (phba->cfg_nvme_io_channel) { 8695 /* Set up NVME LS Complete Queue */ 8696 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8698 "6091 LS %s not allocated\n", 8699 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8700 rc = -ENOMEM; 8701 goto out_destroy; 8702 } 8703 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8704 phba->sli4_hba.nvmels_cq, 8705 phba->sli4_hba.nvmels_wq, 8706 NULL, 0, LPFC_NVME_LS); 8707 if (rc) { 8708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8709 "0529 Failed setup of NVVME LS WQ/CQ: " 8710 "rc = 0x%x\n", (uint32_t)rc); 8711 goto out_destroy; 8712 } 8713 8714 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8715 "6096 ELS WQ setup: wq-id=%d, " 8716 "parent cq-id=%d\n", 8717 phba->sli4_hba.nvmels_wq->queue_id, 8718 phba->sli4_hba.nvmels_cq->queue_id); 8719 } 8720 8721 /* 8722 * Create NVMET Receive Queue (RQ) 8723 */ 8724 if (phba->nvmet_support) { 8725 if ((!phba->sli4_hba.nvmet_cqset) || 8726 (!phba->sli4_hba.nvmet_mrq_hdr) || 8727 (!phba->sli4_hba.nvmet_mrq_data)) { 8728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8729 "6130 MRQ CQ Queues not " 8730 "allocated\n"); 8731 rc = -ENOMEM; 8732 goto out_destroy; 8733 } 8734 if (phba->cfg_nvmet_mrq > 1) { 8735 rc = lpfc_mrq_create(phba, 8736 phba->sli4_hba.nvmet_mrq_hdr, 8737 phba->sli4_hba.nvmet_mrq_data, 8738 phba->sli4_hba.nvmet_cqset, 8739 LPFC_NVMET); 8740 if (rc) { 8741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8742 "6098 Failed setup of NVMET " 8743 "MRQ: rc = 0x%x\n", 8744 (uint32_t)rc); 8745 goto out_destroy; 8746 } 8747 8748 } else { 8749 rc = lpfc_rq_create(phba, 8750 phba->sli4_hba.nvmet_mrq_hdr[0], 8751 phba->sli4_hba.nvmet_mrq_data[0], 8752 phba->sli4_hba.nvmet_cqset[0], 8753 LPFC_NVMET); 8754 if (rc) { 8755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8756 "6057 Failed setup of NVMET " 8757 "Receive Queue: rc = 0x%x\n", 8758 (uint32_t)rc); 8759 goto out_destroy; 8760 } 8761 8762 lpfc_printf_log( 8763 phba, KERN_INFO, LOG_INIT, 8764 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8765 "dat-rq-id=%d parent cq-id=%d\n", 8766 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8767 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8768 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8769 8770 } 8771 } 8772 8773 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8775 "0540 Receive Queue not allocated\n"); 8776 rc = -ENOMEM; 8777 goto out_destroy; 8778 } 8779 8780 lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ); 8781 lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ); 8782 8783 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8784 phba->sli4_hba.els_cq, LPFC_USOL); 8785 if (rc) { 8786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8787 "0541 Failed setup of Receive Queue: " 8788 "rc = 0x%x\n", (uint32_t)rc); 8789 goto out_destroy; 8790 } 8791 8792 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8793 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8794 "parent cq-id=%d\n", 8795 phba->sli4_hba.hdr_rq->queue_id, 8796 phba->sli4_hba.dat_rq->queue_id, 8797 phba->sli4_hba.els_cq->queue_id); 8798 8799 if (phba->cfg_fof) { 8800 rc = lpfc_fof_queue_setup(phba); 8801 if (rc) { 8802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8803 "0549 Failed setup of FOF Queues: " 8804 "rc = 0x%x\n", rc); 8805 goto out_destroy; 8806 } 8807 } 8808 8809 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8810 lpfc_modify_hba_eq_delay(phba, qidx); 8811 8812 return 0; 8813 8814 out_destroy: 8815 lpfc_sli4_queue_unset(phba); 8816 out_error: 8817 return rc; 8818 } 8819 8820 /** 8821 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8822 * @phba: pointer to lpfc hba data structure. 8823 * 8824 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8825 * operation. 8826 * 8827 * Return codes 8828 * 0 - successful 8829 * -ENOMEM - No available memory 8830 * -EIO - The mailbox failed to complete successfully. 8831 **/ 8832 void 8833 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8834 { 8835 int qidx; 8836 8837 /* Unset the queues created for Flash Optimized Fabric operations */ 8838 if (phba->cfg_fof) 8839 lpfc_fof_queue_destroy(phba); 8840 8841 /* Unset mailbox command work queue */ 8842 if (phba->sli4_hba.mbx_wq) 8843 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8844 8845 /* Unset NVME LS work queue */ 8846 if (phba->sli4_hba.nvmels_wq) 8847 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8848 8849 /* Unset ELS work queue */ 8850 if (phba->sli4_hba.els_cq) 8851 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8852 8853 /* Unset unsolicited receive queue */ 8854 if (phba->sli4_hba.hdr_rq) 8855 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8856 phba->sli4_hba.dat_rq); 8857 8858 /* Unset FCP work queue */ 8859 if (phba->sli4_hba.fcp_wq) 8860 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8861 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8862 8863 /* Unset NVME work queue */ 8864 if (phba->sli4_hba.nvme_wq) { 8865 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8866 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8867 } 8868 8869 /* Unset mailbox command complete queue */ 8870 if (phba->sli4_hba.mbx_cq) 8871 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8872 8873 /* Unset ELS complete queue */ 8874 if (phba->sli4_hba.els_cq) 8875 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8876 8877 /* Unset NVME LS complete queue */ 8878 if (phba->sli4_hba.nvmels_cq) 8879 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8880 8881 /* Unset NVME response complete queue */ 8882 if (phba->sli4_hba.nvme_cq) 8883 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8884 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8885 8886 /* Unset NVMET MRQ queue */ 8887 if (phba->sli4_hba.nvmet_mrq_hdr) { 8888 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8889 lpfc_rq_destroy(phba, 8890 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8891 phba->sli4_hba.nvmet_mrq_data[qidx]); 8892 } 8893 8894 /* Unset NVMET CQ Set complete queue */ 8895 if (phba->sli4_hba.nvmet_cqset) { 8896 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8897 lpfc_cq_destroy(phba, 8898 phba->sli4_hba.nvmet_cqset[qidx]); 8899 } 8900 8901 /* Unset FCP response complete queue */ 8902 if (phba->sli4_hba.fcp_cq) 8903 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8904 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 8905 8906 /* Unset fast-path event queue */ 8907 if (phba->sli4_hba.hba_eq) 8908 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 8909 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 8910 } 8911 8912 /** 8913 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 8914 * @phba: pointer to lpfc hba data structure. 8915 * 8916 * This routine is invoked to allocate and set up a pool of completion queue 8917 * events. The body of the completion queue event is a completion queue entry 8918 * CQE. For now, this pool is used for the interrupt service routine to queue 8919 * the following HBA completion queue events for the worker thread to process: 8920 * - Mailbox asynchronous events 8921 * - Receive queue completion unsolicited events 8922 * Later, this can be used for all the slow-path events. 8923 * 8924 * Return codes 8925 * 0 - successful 8926 * -ENOMEM - No available memory 8927 **/ 8928 static int 8929 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 8930 { 8931 struct lpfc_cq_event *cq_event; 8932 int i; 8933 8934 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 8935 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 8936 if (!cq_event) 8937 goto out_pool_create_fail; 8938 list_add_tail(&cq_event->list, 8939 &phba->sli4_hba.sp_cqe_event_pool); 8940 } 8941 return 0; 8942 8943 out_pool_create_fail: 8944 lpfc_sli4_cq_event_pool_destroy(phba); 8945 return -ENOMEM; 8946 } 8947 8948 /** 8949 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 8950 * @phba: pointer to lpfc hba data structure. 8951 * 8952 * This routine is invoked to free the pool of completion queue events at 8953 * driver unload time. Note that, it is the responsibility of the driver 8954 * cleanup routine to free all the outstanding completion-queue events 8955 * allocated from this pool back into the pool before invoking this routine 8956 * to destroy the pool. 8957 **/ 8958 static void 8959 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 8960 { 8961 struct lpfc_cq_event *cq_event, *next_cq_event; 8962 8963 list_for_each_entry_safe(cq_event, next_cq_event, 8964 &phba->sli4_hba.sp_cqe_event_pool, list) { 8965 list_del(&cq_event->list); 8966 kfree(cq_event); 8967 } 8968 } 8969 8970 /** 8971 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8972 * @phba: pointer to lpfc hba data structure. 8973 * 8974 * This routine is the lock free version of the API invoked to allocate a 8975 * completion-queue event from the free pool. 8976 * 8977 * Return: Pointer to the newly allocated completion-queue event if successful 8978 * NULL otherwise. 8979 **/ 8980 struct lpfc_cq_event * 8981 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 8982 { 8983 struct lpfc_cq_event *cq_event = NULL; 8984 8985 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 8986 struct lpfc_cq_event, list); 8987 return cq_event; 8988 } 8989 8990 /** 8991 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 8992 * @phba: pointer to lpfc hba data structure. 8993 * 8994 * This routine is the lock version of the API invoked to allocate a 8995 * completion-queue event from the free pool. 8996 * 8997 * Return: Pointer to the newly allocated completion-queue event if successful 8998 * NULL otherwise. 8999 **/ 9000 struct lpfc_cq_event * 9001 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9002 { 9003 struct lpfc_cq_event *cq_event; 9004 unsigned long iflags; 9005 9006 spin_lock_irqsave(&phba->hbalock, iflags); 9007 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9008 spin_unlock_irqrestore(&phba->hbalock, iflags); 9009 return cq_event; 9010 } 9011 9012 /** 9013 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9014 * @phba: pointer to lpfc hba data structure. 9015 * @cq_event: pointer to the completion queue event to be freed. 9016 * 9017 * This routine is the lock free version of the API invoked to release a 9018 * completion-queue event back into the free pool. 9019 **/ 9020 void 9021 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9022 struct lpfc_cq_event *cq_event) 9023 { 9024 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9025 } 9026 9027 /** 9028 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9029 * @phba: pointer to lpfc hba data structure. 9030 * @cq_event: pointer to the completion queue event to be freed. 9031 * 9032 * This routine is the lock version of the API invoked to release a 9033 * completion-queue event back into the free pool. 9034 **/ 9035 void 9036 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9037 struct lpfc_cq_event *cq_event) 9038 { 9039 unsigned long iflags; 9040 spin_lock_irqsave(&phba->hbalock, iflags); 9041 __lpfc_sli4_cq_event_release(phba, cq_event); 9042 spin_unlock_irqrestore(&phba->hbalock, iflags); 9043 } 9044 9045 /** 9046 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9047 * @phba: pointer to lpfc hba data structure. 9048 * 9049 * This routine is to free all the pending completion-queue events to the 9050 * back into the free pool for device reset. 9051 **/ 9052 static void 9053 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9054 { 9055 LIST_HEAD(cqelist); 9056 struct lpfc_cq_event *cqe; 9057 unsigned long iflags; 9058 9059 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9060 spin_lock_irqsave(&phba->hbalock, iflags); 9061 /* Pending FCP XRI abort events */ 9062 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9063 &cqelist); 9064 /* Pending ELS XRI abort events */ 9065 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9066 &cqelist); 9067 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9068 /* Pending NVME XRI abort events */ 9069 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9070 &cqelist); 9071 } 9072 /* Pending asynnc events */ 9073 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9074 &cqelist); 9075 spin_unlock_irqrestore(&phba->hbalock, iflags); 9076 9077 while (!list_empty(&cqelist)) { 9078 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9079 lpfc_sli4_cq_event_release(phba, cqe); 9080 } 9081 } 9082 9083 /** 9084 * lpfc_pci_function_reset - Reset pci function. 9085 * @phba: pointer to lpfc hba data structure. 9086 * 9087 * This routine is invoked to request a PCI function reset. It will destroys 9088 * all resources assigned to the PCI function which originates this request. 9089 * 9090 * Return codes 9091 * 0 - successful 9092 * -ENOMEM - No available memory 9093 * -EIO - The mailbox failed to complete successfully. 9094 **/ 9095 int 9096 lpfc_pci_function_reset(struct lpfc_hba *phba) 9097 { 9098 LPFC_MBOXQ_t *mboxq; 9099 uint32_t rc = 0, if_type; 9100 uint32_t shdr_status, shdr_add_status; 9101 uint32_t rdy_chk; 9102 uint32_t port_reset = 0; 9103 union lpfc_sli4_cfg_shdr *shdr; 9104 struct lpfc_register reg_data; 9105 uint16_t devid; 9106 9107 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9108 switch (if_type) { 9109 case LPFC_SLI_INTF_IF_TYPE_0: 9110 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9111 GFP_KERNEL); 9112 if (!mboxq) { 9113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9114 "0494 Unable to allocate memory for " 9115 "issuing SLI_FUNCTION_RESET mailbox " 9116 "command\n"); 9117 return -ENOMEM; 9118 } 9119 9120 /* Setup PCI function reset mailbox-ioctl command */ 9121 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9122 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9123 LPFC_SLI4_MBX_EMBED); 9124 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9125 shdr = (union lpfc_sli4_cfg_shdr *) 9126 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9127 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9128 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9129 &shdr->response); 9130 if (rc != MBX_TIMEOUT) 9131 mempool_free(mboxq, phba->mbox_mem_pool); 9132 if (shdr_status || shdr_add_status || rc) { 9133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9134 "0495 SLI_FUNCTION_RESET mailbox " 9135 "failed with status x%x add_status x%x," 9136 " mbx status x%x\n", 9137 shdr_status, shdr_add_status, rc); 9138 rc = -ENXIO; 9139 } 9140 break; 9141 case LPFC_SLI_INTF_IF_TYPE_2: 9142 wait: 9143 /* 9144 * Poll the Port Status Register and wait for RDY for 9145 * up to 30 seconds. If the port doesn't respond, treat 9146 * it as an error. 9147 */ 9148 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9149 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9150 STATUSregaddr, ®_data.word0)) { 9151 rc = -ENODEV; 9152 goto out; 9153 } 9154 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9155 break; 9156 msleep(20); 9157 } 9158 9159 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9160 phba->work_status[0] = readl( 9161 phba->sli4_hba.u.if_type2.ERR1regaddr); 9162 phba->work_status[1] = readl( 9163 phba->sli4_hba.u.if_type2.ERR2regaddr); 9164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9165 "2890 Port not ready, port status reg " 9166 "0x%x error 1=0x%x, error 2=0x%x\n", 9167 reg_data.word0, 9168 phba->work_status[0], 9169 phba->work_status[1]); 9170 rc = -ENODEV; 9171 goto out; 9172 } 9173 9174 if (!port_reset) { 9175 /* 9176 * Reset the port now 9177 */ 9178 reg_data.word0 = 0; 9179 bf_set(lpfc_sliport_ctrl_end, ®_data, 9180 LPFC_SLIPORT_LITTLE_ENDIAN); 9181 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9182 LPFC_SLIPORT_INIT_PORT); 9183 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9184 CTRLregaddr); 9185 /* flush */ 9186 pci_read_config_word(phba->pcidev, 9187 PCI_DEVICE_ID, &devid); 9188 9189 port_reset = 1; 9190 msleep(20); 9191 goto wait; 9192 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9193 rc = -ENODEV; 9194 goto out; 9195 } 9196 break; 9197 9198 case LPFC_SLI_INTF_IF_TYPE_1: 9199 default: 9200 break; 9201 } 9202 9203 out: 9204 /* Catch the not-ready port failure after a port reset. */ 9205 if (rc) { 9206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9207 "3317 HBA not functional: IP Reset Failed " 9208 "try: echo fw_reset > board_mode\n"); 9209 rc = -ENODEV; 9210 } 9211 9212 return rc; 9213 } 9214 9215 /** 9216 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9217 * @phba: pointer to lpfc hba data structure. 9218 * 9219 * This routine is invoked to set up the PCI device memory space for device 9220 * with SLI-4 interface spec. 9221 * 9222 * Return codes 9223 * 0 - successful 9224 * other values - error 9225 **/ 9226 static int 9227 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9228 { 9229 struct pci_dev *pdev; 9230 unsigned long bar0map_len, bar1map_len, bar2map_len; 9231 int error = -ENODEV; 9232 uint32_t if_type; 9233 9234 /* Obtain PCI device reference */ 9235 if (!phba->pcidev) 9236 return error; 9237 else 9238 pdev = phba->pcidev; 9239 9240 /* Set the device DMA mask size */ 9241 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9242 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9243 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9244 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9245 return error; 9246 } 9247 } 9248 9249 /* 9250 * The BARs and register set definitions and offset locations are 9251 * dependent on the if_type. 9252 */ 9253 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9254 &phba->sli4_hba.sli_intf.word0)) { 9255 return error; 9256 } 9257 9258 /* There is no SLI3 failback for SLI4 devices. */ 9259 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9260 LPFC_SLI_INTF_VALID) { 9261 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9262 "2894 SLI_INTF reg contents invalid " 9263 "sli_intf reg 0x%x\n", 9264 phba->sli4_hba.sli_intf.word0); 9265 return error; 9266 } 9267 9268 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9269 /* 9270 * Get the bus address of SLI4 device Bar regions and the 9271 * number of bytes required by each mapping. The mapping of the 9272 * particular PCI BARs regions is dependent on the type of 9273 * SLI4 device. 9274 */ 9275 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9276 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9277 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9278 9279 /* 9280 * Map SLI4 PCI Config Space Register base to a kernel virtual 9281 * addr 9282 */ 9283 phba->sli4_hba.conf_regs_memmap_p = 9284 ioremap(phba->pci_bar0_map, bar0map_len); 9285 if (!phba->sli4_hba.conf_regs_memmap_p) { 9286 dev_printk(KERN_ERR, &pdev->dev, 9287 "ioremap failed for SLI4 PCI config " 9288 "registers.\n"); 9289 goto out; 9290 } 9291 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9292 /* Set up BAR0 PCI config space register memory map */ 9293 lpfc_sli4_bar0_register_memmap(phba, if_type); 9294 } else { 9295 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9296 bar0map_len = pci_resource_len(pdev, 1); 9297 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9298 dev_printk(KERN_ERR, &pdev->dev, 9299 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9300 goto out; 9301 } 9302 phba->sli4_hba.conf_regs_memmap_p = 9303 ioremap(phba->pci_bar0_map, bar0map_len); 9304 if (!phba->sli4_hba.conf_regs_memmap_p) { 9305 dev_printk(KERN_ERR, &pdev->dev, 9306 "ioremap failed for SLI4 PCI config " 9307 "registers.\n"); 9308 goto out; 9309 } 9310 lpfc_sli4_bar0_register_memmap(phba, if_type); 9311 } 9312 9313 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9314 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9315 /* 9316 * Map SLI4 if type 0 HBA Control Register base to a kernel 9317 * virtual address and setup the registers. 9318 */ 9319 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9320 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9321 phba->sli4_hba.ctrl_regs_memmap_p = 9322 ioremap(phba->pci_bar1_map, bar1map_len); 9323 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9324 dev_printk(KERN_ERR, &pdev->dev, 9325 "ioremap failed for SLI4 HBA control registers.\n"); 9326 goto out_iounmap_conf; 9327 } 9328 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9329 lpfc_sli4_bar1_register_memmap(phba); 9330 } 9331 9332 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9333 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9334 /* 9335 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9336 * virtual address and setup the registers. 9337 */ 9338 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9339 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9340 phba->sli4_hba.drbl_regs_memmap_p = 9341 ioremap(phba->pci_bar2_map, bar2map_len); 9342 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9343 dev_printk(KERN_ERR, &pdev->dev, 9344 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9345 goto out_iounmap_ctrl; 9346 } 9347 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9348 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9349 if (error) 9350 goto out_iounmap_all; 9351 } 9352 9353 return 0; 9354 9355 out_iounmap_all: 9356 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9357 out_iounmap_ctrl: 9358 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9359 out_iounmap_conf: 9360 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9361 out: 9362 return error; 9363 } 9364 9365 /** 9366 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9367 * @phba: pointer to lpfc hba data structure. 9368 * 9369 * This routine is invoked to unset the PCI device memory space for device 9370 * with SLI-4 interface spec. 9371 **/ 9372 static void 9373 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9374 { 9375 uint32_t if_type; 9376 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9377 9378 switch (if_type) { 9379 case LPFC_SLI_INTF_IF_TYPE_0: 9380 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9381 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9382 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9383 break; 9384 case LPFC_SLI_INTF_IF_TYPE_2: 9385 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9386 break; 9387 case LPFC_SLI_INTF_IF_TYPE_1: 9388 default: 9389 dev_printk(KERN_ERR, &phba->pcidev->dev, 9390 "FATAL - unsupported SLI4 interface type - %d\n", 9391 if_type); 9392 break; 9393 } 9394 } 9395 9396 /** 9397 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9398 * @phba: pointer to lpfc hba data structure. 9399 * 9400 * This routine is invoked to enable the MSI-X interrupt vectors to device 9401 * with SLI-3 interface specs. 9402 * 9403 * Return codes 9404 * 0 - successful 9405 * other values - error 9406 **/ 9407 static int 9408 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9409 { 9410 int rc; 9411 LPFC_MBOXQ_t *pmb; 9412 9413 /* Set up MSI-X multi-message vectors */ 9414 rc = pci_alloc_irq_vectors(phba->pcidev, 9415 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9416 if (rc < 0) { 9417 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9418 "0420 PCI enable MSI-X failed (%d)\n", rc); 9419 goto vec_fail_out; 9420 } 9421 9422 /* 9423 * Assign MSI-X vectors to interrupt handlers 9424 */ 9425 9426 /* vector-0 is associated to slow-path handler */ 9427 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9428 &lpfc_sli_sp_intr_handler, 0, 9429 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9430 if (rc) { 9431 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9432 "0421 MSI-X slow-path request_irq failed " 9433 "(%d)\n", rc); 9434 goto msi_fail_out; 9435 } 9436 9437 /* vector-1 is associated to fast-path handler */ 9438 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9439 &lpfc_sli_fp_intr_handler, 0, 9440 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9441 9442 if (rc) { 9443 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9444 "0429 MSI-X fast-path request_irq failed " 9445 "(%d)\n", rc); 9446 goto irq_fail_out; 9447 } 9448 9449 /* 9450 * Configure HBA MSI-X attention conditions to messages 9451 */ 9452 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9453 9454 if (!pmb) { 9455 rc = -ENOMEM; 9456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9457 "0474 Unable to allocate memory for issuing " 9458 "MBOX_CONFIG_MSI command\n"); 9459 goto mem_fail_out; 9460 } 9461 rc = lpfc_config_msi(phba, pmb); 9462 if (rc) 9463 goto mbx_fail_out; 9464 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9465 if (rc != MBX_SUCCESS) { 9466 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9467 "0351 Config MSI mailbox command failed, " 9468 "mbxCmd x%x, mbxStatus x%x\n", 9469 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9470 goto mbx_fail_out; 9471 } 9472 9473 /* Free memory allocated for mailbox command */ 9474 mempool_free(pmb, phba->mbox_mem_pool); 9475 return rc; 9476 9477 mbx_fail_out: 9478 /* Free memory allocated for mailbox command */ 9479 mempool_free(pmb, phba->mbox_mem_pool); 9480 9481 mem_fail_out: 9482 /* free the irq already requested */ 9483 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9484 9485 irq_fail_out: 9486 /* free the irq already requested */ 9487 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9488 9489 msi_fail_out: 9490 /* Unconfigure MSI-X capability structure */ 9491 pci_free_irq_vectors(phba->pcidev); 9492 9493 vec_fail_out: 9494 return rc; 9495 } 9496 9497 /** 9498 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9499 * @phba: pointer to lpfc hba data structure. 9500 * 9501 * This routine is invoked to enable the MSI interrupt mode to device with 9502 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9503 * enable the MSI vector. The device driver is responsible for calling the 9504 * request_irq() to register MSI vector with a interrupt the handler, which 9505 * is done in this function. 9506 * 9507 * Return codes 9508 * 0 - successful 9509 * other values - error 9510 */ 9511 static int 9512 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9513 { 9514 int rc; 9515 9516 rc = pci_enable_msi(phba->pcidev); 9517 if (!rc) 9518 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9519 "0462 PCI enable MSI mode success.\n"); 9520 else { 9521 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9522 "0471 PCI enable MSI mode failed (%d)\n", rc); 9523 return rc; 9524 } 9525 9526 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9527 0, LPFC_DRIVER_NAME, phba); 9528 if (rc) { 9529 pci_disable_msi(phba->pcidev); 9530 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9531 "0478 MSI request_irq failed (%d)\n", rc); 9532 } 9533 return rc; 9534 } 9535 9536 /** 9537 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9538 * @phba: pointer to lpfc hba data structure. 9539 * 9540 * This routine is invoked to enable device interrupt and associate driver's 9541 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9542 * spec. Depends on the interrupt mode configured to the driver, the driver 9543 * will try to fallback from the configured interrupt mode to an interrupt 9544 * mode which is supported by the platform, kernel, and device in the order 9545 * of: 9546 * MSI-X -> MSI -> IRQ. 9547 * 9548 * Return codes 9549 * 0 - successful 9550 * other values - error 9551 **/ 9552 static uint32_t 9553 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9554 { 9555 uint32_t intr_mode = LPFC_INTR_ERROR; 9556 int retval; 9557 9558 if (cfg_mode == 2) { 9559 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9560 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9561 if (!retval) { 9562 /* Now, try to enable MSI-X interrupt mode */ 9563 retval = lpfc_sli_enable_msix(phba); 9564 if (!retval) { 9565 /* Indicate initialization to MSI-X mode */ 9566 phba->intr_type = MSIX; 9567 intr_mode = 2; 9568 } 9569 } 9570 } 9571 9572 /* Fallback to MSI if MSI-X initialization failed */ 9573 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9574 retval = lpfc_sli_enable_msi(phba); 9575 if (!retval) { 9576 /* Indicate initialization to MSI mode */ 9577 phba->intr_type = MSI; 9578 intr_mode = 1; 9579 } 9580 } 9581 9582 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9583 if (phba->intr_type == NONE) { 9584 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9585 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9586 if (!retval) { 9587 /* Indicate initialization to INTx mode */ 9588 phba->intr_type = INTx; 9589 intr_mode = 0; 9590 } 9591 } 9592 return intr_mode; 9593 } 9594 9595 /** 9596 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9597 * @phba: pointer to lpfc hba data structure. 9598 * 9599 * This routine is invoked to disable device interrupt and disassociate the 9600 * driver's interrupt handler(s) from interrupt vector(s) to device with 9601 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9602 * release the interrupt vector(s) for the message signaled interrupt. 9603 **/ 9604 static void 9605 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9606 { 9607 int nr_irqs, i; 9608 9609 if (phba->intr_type == MSIX) 9610 nr_irqs = LPFC_MSIX_VECTORS; 9611 else 9612 nr_irqs = 1; 9613 9614 for (i = 0; i < nr_irqs; i++) 9615 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9616 pci_free_irq_vectors(phba->pcidev); 9617 9618 /* Reset interrupt management states */ 9619 phba->intr_type = NONE; 9620 phba->sli.slistat.sli_intr = 0; 9621 } 9622 9623 /** 9624 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9625 * @phba: pointer to lpfc hba data structure. 9626 * @vectors: number of msix vectors allocated. 9627 * 9628 * The routine will figure out the CPU affinity assignment for every 9629 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9630 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9631 * can be associated with. If the vector can be unquely associated with 9632 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9633 * In addition, the CPU to IO channel mapping will be calculated 9634 * and the phba->sli4_hba.cpu_map array will reflect this. 9635 */ 9636 static void 9637 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9638 { 9639 struct lpfc_vector_map_info *cpup; 9640 int index = 0; 9641 int vec = 0; 9642 int cpu; 9643 #ifdef CONFIG_X86 9644 struct cpuinfo_x86 *cpuinfo; 9645 #endif 9646 9647 /* Init cpu_map array */ 9648 memset(phba->sli4_hba.cpu_map, 0xff, 9649 (sizeof(struct lpfc_vector_map_info) * 9650 phba->sli4_hba.num_present_cpu)); 9651 9652 /* Update CPU map with physical id and core id of each CPU */ 9653 cpup = phba->sli4_hba.cpu_map; 9654 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9655 #ifdef CONFIG_X86 9656 cpuinfo = &cpu_data(cpu); 9657 cpup->phys_id = cpuinfo->phys_proc_id; 9658 cpup->core_id = cpuinfo->cpu_core_id; 9659 #else 9660 /* No distinction between CPUs for other platforms */ 9661 cpup->phys_id = 0; 9662 cpup->core_id = 0; 9663 #endif 9664 cpup->channel_id = index; /* For now round robin */ 9665 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9666 vec++; 9667 if (vec >= vectors) 9668 vec = 0; 9669 index++; 9670 if (index >= phba->cfg_fcp_io_channel) 9671 index = 0; 9672 cpup++; 9673 } 9674 } 9675 9676 9677 /** 9678 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9679 * @phba: pointer to lpfc hba data structure. 9680 * 9681 * This routine is invoked to enable the MSI-X interrupt vectors to device 9682 * with SLI-4 interface spec. 9683 * 9684 * Return codes 9685 * 0 - successful 9686 * other values - error 9687 **/ 9688 static int 9689 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9690 { 9691 int vectors, rc, index; 9692 9693 /* Set up MSI-X multi-message vectors */ 9694 vectors = phba->io_channel_irqs; 9695 if (phba->cfg_fof) 9696 vectors++; 9697 9698 rc = pci_alloc_irq_vectors(phba->pcidev, 9699 (phba->nvmet_support) ? 1 : 2, 9700 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9701 if (rc < 0) { 9702 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9703 "0484 PCI enable MSI-X failed (%d)\n", rc); 9704 goto vec_fail_out; 9705 } 9706 vectors = rc; 9707 9708 /* Assign MSI-X vectors to interrupt handlers */ 9709 for (index = 0; index < vectors; index++) { 9710 memset(&phba->sli4_hba.handler_name[index], 0, 16); 9711 snprintf((char *)&phba->sli4_hba.handler_name[index], 9712 LPFC_SLI4_HANDLER_NAME_SZ, 9713 LPFC_DRIVER_HANDLER_NAME"%d", index); 9714 9715 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9716 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9717 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9718 if (phba->cfg_fof && (index == (vectors - 1))) 9719 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9720 &lpfc_sli4_fof_intr_handler, 0, 9721 (char *)&phba->sli4_hba.handler_name[index], 9722 &phba->sli4_hba.hba_eq_hdl[index]); 9723 else 9724 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9725 &lpfc_sli4_hba_intr_handler, 0, 9726 (char *)&phba->sli4_hba.handler_name[index], 9727 &phba->sli4_hba.hba_eq_hdl[index]); 9728 if (rc) { 9729 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9730 "0486 MSI-X fast-path (%d) " 9731 "request_irq failed (%d)\n", index, rc); 9732 goto cfg_fail_out; 9733 } 9734 } 9735 9736 if (phba->cfg_fof) 9737 vectors--; 9738 9739 if (vectors != phba->io_channel_irqs) { 9740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9741 "3238 Reducing IO channels to match number of " 9742 "MSI-X vectors, requested %d got %d\n", 9743 phba->io_channel_irqs, vectors); 9744 if (phba->cfg_fcp_io_channel > vectors) 9745 phba->cfg_fcp_io_channel = vectors; 9746 if (phba->cfg_nvme_io_channel > vectors) 9747 phba->cfg_nvme_io_channel = vectors; 9748 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9749 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9750 else 9751 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9752 } 9753 lpfc_cpu_affinity_check(phba, vectors); 9754 9755 return rc; 9756 9757 cfg_fail_out: 9758 /* free the irq already requested */ 9759 for (--index; index >= 0; index--) 9760 free_irq(pci_irq_vector(phba->pcidev, index), 9761 &phba->sli4_hba.hba_eq_hdl[index]); 9762 9763 /* Unconfigure MSI-X capability structure */ 9764 pci_free_irq_vectors(phba->pcidev); 9765 9766 vec_fail_out: 9767 return rc; 9768 } 9769 9770 /** 9771 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9772 * @phba: pointer to lpfc hba data structure. 9773 * 9774 * This routine is invoked to enable the MSI interrupt mode to device with 9775 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9776 * to enable the MSI vector. The device driver is responsible for calling 9777 * the request_irq() to register MSI vector with a interrupt the handler, 9778 * which is done in this function. 9779 * 9780 * Return codes 9781 * 0 - successful 9782 * other values - error 9783 **/ 9784 static int 9785 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9786 { 9787 int rc, index; 9788 9789 rc = pci_enable_msi(phba->pcidev); 9790 if (!rc) 9791 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9792 "0487 PCI enable MSI mode success.\n"); 9793 else { 9794 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9795 "0488 PCI enable MSI mode failed (%d)\n", rc); 9796 return rc; 9797 } 9798 9799 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9800 0, LPFC_DRIVER_NAME, phba); 9801 if (rc) { 9802 pci_disable_msi(phba->pcidev); 9803 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9804 "0490 MSI request_irq failed (%d)\n", rc); 9805 return rc; 9806 } 9807 9808 for (index = 0; index < phba->io_channel_irqs; index++) { 9809 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9810 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9811 } 9812 9813 if (phba->cfg_fof) { 9814 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9815 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9816 } 9817 return 0; 9818 } 9819 9820 /** 9821 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9822 * @phba: pointer to lpfc hba data structure. 9823 * 9824 * This routine is invoked to enable device interrupt and associate driver's 9825 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9826 * interface spec. Depends on the interrupt mode configured to the driver, 9827 * the driver will try to fallback from the configured interrupt mode to an 9828 * interrupt mode which is supported by the platform, kernel, and device in 9829 * the order of: 9830 * MSI-X -> MSI -> IRQ. 9831 * 9832 * Return codes 9833 * 0 - successful 9834 * other values - error 9835 **/ 9836 static uint32_t 9837 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9838 { 9839 uint32_t intr_mode = LPFC_INTR_ERROR; 9840 int retval, idx; 9841 9842 if (cfg_mode == 2) { 9843 /* Preparation before conf_msi mbox cmd */ 9844 retval = 0; 9845 if (!retval) { 9846 /* Now, try to enable MSI-X interrupt mode */ 9847 retval = lpfc_sli4_enable_msix(phba); 9848 if (!retval) { 9849 /* Indicate initialization to MSI-X mode */ 9850 phba->intr_type = MSIX; 9851 intr_mode = 2; 9852 } 9853 } 9854 } 9855 9856 /* Fallback to MSI if MSI-X initialization failed */ 9857 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9858 retval = lpfc_sli4_enable_msi(phba); 9859 if (!retval) { 9860 /* Indicate initialization to MSI mode */ 9861 phba->intr_type = MSI; 9862 intr_mode = 1; 9863 } 9864 } 9865 9866 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9867 if (phba->intr_type == NONE) { 9868 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9869 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9870 if (!retval) { 9871 struct lpfc_hba_eq_hdl *eqhdl; 9872 9873 /* Indicate initialization to INTx mode */ 9874 phba->intr_type = INTx; 9875 intr_mode = 0; 9876 9877 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9878 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9879 eqhdl->idx = idx; 9880 eqhdl->phba = phba; 9881 atomic_set(&eqhdl->hba_eq_in_use, 1); 9882 } 9883 if (phba->cfg_fof) { 9884 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9885 eqhdl->idx = idx; 9886 eqhdl->phba = phba; 9887 atomic_set(&eqhdl->hba_eq_in_use, 1); 9888 } 9889 } 9890 } 9891 return intr_mode; 9892 } 9893 9894 /** 9895 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9896 * @phba: pointer to lpfc hba data structure. 9897 * 9898 * This routine is invoked to disable device interrupt and disassociate 9899 * the driver's interrupt handler(s) from interrupt vector(s) to device 9900 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9901 * will release the interrupt vector(s) for the message signaled interrupt. 9902 **/ 9903 static void 9904 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9905 { 9906 /* Disable the currently initialized interrupt mode */ 9907 if (phba->intr_type == MSIX) { 9908 int index; 9909 9910 /* Free up MSI-X multi-message vectors */ 9911 for (index = 0; index < phba->io_channel_irqs; index++) 9912 free_irq(pci_irq_vector(phba->pcidev, index), 9913 &phba->sli4_hba.hba_eq_hdl[index]); 9914 9915 if (phba->cfg_fof) 9916 free_irq(pci_irq_vector(phba->pcidev, index), 9917 &phba->sli4_hba.hba_eq_hdl[index]); 9918 } else { 9919 free_irq(phba->pcidev->irq, phba); 9920 } 9921 9922 pci_free_irq_vectors(phba->pcidev); 9923 9924 /* Reset interrupt management states */ 9925 phba->intr_type = NONE; 9926 phba->sli.slistat.sli_intr = 0; 9927 } 9928 9929 /** 9930 * lpfc_unset_hba - Unset SLI3 hba device initialization 9931 * @phba: pointer to lpfc hba data structure. 9932 * 9933 * This routine is invoked to unset the HBA device initialization steps to 9934 * a device with SLI-3 interface spec. 9935 **/ 9936 static void 9937 lpfc_unset_hba(struct lpfc_hba *phba) 9938 { 9939 struct lpfc_vport *vport = phba->pport; 9940 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 9941 9942 spin_lock_irq(shost->host_lock); 9943 vport->load_flag |= FC_UNLOADING; 9944 spin_unlock_irq(shost->host_lock); 9945 9946 kfree(phba->vpi_bmask); 9947 kfree(phba->vpi_ids); 9948 9949 lpfc_stop_hba_timers(phba); 9950 9951 phba->pport->work_port_events = 0; 9952 9953 lpfc_sli_hba_down(phba); 9954 9955 lpfc_sli_brdrestart(phba); 9956 9957 lpfc_sli_disable_intr(phba); 9958 9959 return; 9960 } 9961 9962 /** 9963 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 9964 * @phba: Pointer to HBA context object. 9965 * 9966 * This function is called in the SLI4 code path to wait for completion 9967 * of device's XRIs exchange busy. It will check the XRI exchange busy 9968 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 9969 * that, it will check the XRI exchange busy on outstanding FCP and ELS 9970 * I/Os every 30 seconds, log error message, and wait forever. Only when 9971 * all XRI exchange busy complete, the driver unload shall proceed with 9972 * invoking the function reset ioctl mailbox command to the CNA and the 9973 * the rest of the driver unload resource release. 9974 **/ 9975 static void 9976 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 9977 { 9978 int wait_time = 0; 9979 int nvme_xri_cmpl = 1; 9980 int nvmet_xri_cmpl = 1; 9981 int fcp_xri_cmpl = 1; 9982 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 9983 9984 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 9985 fcp_xri_cmpl = 9986 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 9987 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9988 nvme_xri_cmpl = 9989 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 9990 nvmet_xri_cmpl = 9991 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 9992 } 9993 9994 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 9995 !nvmet_xri_cmpl) { 9996 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 9997 if (!nvme_xri_cmpl) 9998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9999 "6100 NVME XRI exchange busy " 10000 "wait time: %d seconds.\n", 10001 wait_time/1000); 10002 if (!fcp_xri_cmpl) 10003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10004 "2877 FCP XRI exchange busy " 10005 "wait time: %d seconds.\n", 10006 wait_time/1000); 10007 if (!els_xri_cmpl) 10008 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10009 "2878 ELS XRI exchange busy " 10010 "wait time: %d seconds.\n", 10011 wait_time/1000); 10012 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10013 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10014 } else { 10015 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10016 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10017 } 10018 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10019 nvme_xri_cmpl = list_empty( 10020 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10021 nvmet_xri_cmpl = list_empty( 10022 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10023 } 10024 10025 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10026 fcp_xri_cmpl = list_empty( 10027 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10028 10029 els_xri_cmpl = 10030 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10031 10032 } 10033 } 10034 10035 /** 10036 * lpfc_sli4_hba_unset - Unset the fcoe hba 10037 * @phba: Pointer to HBA context object. 10038 * 10039 * This function is called in the SLI4 code path to reset the HBA's FCoE 10040 * function. The caller is not required to hold any lock. This routine 10041 * issues PCI function reset mailbox command to reset the FCoE function. 10042 * At the end of the function, it calls lpfc_hba_down_post function to 10043 * free any pending commands. 10044 **/ 10045 static void 10046 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10047 { 10048 int wait_cnt = 0; 10049 LPFC_MBOXQ_t *mboxq; 10050 struct pci_dev *pdev = phba->pcidev; 10051 10052 lpfc_stop_hba_timers(phba); 10053 phba->sli4_hba.intr_enable = 0; 10054 10055 /* 10056 * Gracefully wait out the potential current outstanding asynchronous 10057 * mailbox command. 10058 */ 10059 10060 /* First, block any pending async mailbox command from posted */ 10061 spin_lock_irq(&phba->hbalock); 10062 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10063 spin_unlock_irq(&phba->hbalock); 10064 /* Now, trying to wait it out if we can */ 10065 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10066 msleep(10); 10067 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10068 break; 10069 } 10070 /* Forcefully release the outstanding mailbox command if timed out */ 10071 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10072 spin_lock_irq(&phba->hbalock); 10073 mboxq = phba->sli.mbox_active; 10074 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10075 __lpfc_mbox_cmpl_put(phba, mboxq); 10076 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10077 phba->sli.mbox_active = NULL; 10078 spin_unlock_irq(&phba->hbalock); 10079 } 10080 10081 /* Abort all iocbs associated with the hba */ 10082 lpfc_sli_hba_iocb_abort(phba); 10083 10084 /* Wait for completion of device XRI exchange busy */ 10085 lpfc_sli4_xri_exchange_busy_wait(phba); 10086 10087 /* Disable PCI subsystem interrupt */ 10088 lpfc_sli4_disable_intr(phba); 10089 10090 /* Disable SR-IOV if enabled */ 10091 if (phba->cfg_sriov_nr_virtfn) 10092 pci_disable_sriov(pdev); 10093 10094 /* Stop kthread signal shall trigger work_done one more time */ 10095 kthread_stop(phba->worker_thread); 10096 10097 /* Unset the queues shared with the hardware then release all 10098 * allocated resources. 10099 */ 10100 lpfc_sli4_queue_unset(phba); 10101 lpfc_sli4_queue_destroy(phba); 10102 10103 /* Reset SLI4 HBA FCoE function */ 10104 lpfc_pci_function_reset(phba); 10105 10106 /* Stop the SLI4 device port */ 10107 phba->pport->work_port_events = 0; 10108 } 10109 10110 /** 10111 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10112 * @phba: Pointer to HBA context object. 10113 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10114 * 10115 * This function is called in the SLI4 code path to read the port's 10116 * sli4 capabilities. 10117 * 10118 * This function may be be called from any context that can block-wait 10119 * for the completion. The expectation is that this routine is called 10120 * typically from probe_one or from the online routine. 10121 **/ 10122 int 10123 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10124 { 10125 int rc; 10126 struct lpfc_mqe *mqe; 10127 struct lpfc_pc_sli4_params *sli4_params; 10128 uint32_t mbox_tmo; 10129 10130 rc = 0; 10131 mqe = &mboxq->u.mqe; 10132 10133 /* Read the port's SLI4 Parameters port capabilities */ 10134 lpfc_pc_sli4_params(mboxq); 10135 if (!phba->sli4_hba.intr_enable) 10136 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10137 else { 10138 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10139 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10140 } 10141 10142 if (unlikely(rc)) 10143 return 1; 10144 10145 sli4_params = &phba->sli4_hba.pc_sli4_params; 10146 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10147 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10148 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10149 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10150 &mqe->un.sli4_params); 10151 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10152 &mqe->un.sli4_params); 10153 sli4_params->proto_types = mqe->un.sli4_params.word3; 10154 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10155 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10156 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10157 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10158 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10159 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10160 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10161 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10162 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10163 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10164 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10165 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10166 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10167 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10168 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10169 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10170 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10171 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10172 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10173 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10174 10175 /* Make sure that sge_supp_len can be handled by the driver */ 10176 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10177 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10178 10179 return rc; 10180 } 10181 10182 /** 10183 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10184 * @phba: Pointer to HBA context object. 10185 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10186 * 10187 * This function is called in the SLI4 code path to read the port's 10188 * sli4 capabilities. 10189 * 10190 * This function may be be called from any context that can block-wait 10191 * for the completion. The expectation is that this routine is called 10192 * typically from probe_one or from the online routine. 10193 **/ 10194 int 10195 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10196 { 10197 int rc; 10198 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10199 struct lpfc_pc_sli4_params *sli4_params; 10200 uint32_t mbox_tmo; 10201 int length; 10202 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10203 10204 /* 10205 * By default, the driver assumes the SLI4 port requires RPI 10206 * header postings. The SLI4_PARAM response will correct this 10207 * assumption. 10208 */ 10209 phba->sli4_hba.rpi_hdrs_in_use = 1; 10210 10211 /* Read the port's SLI4 Config Parameters */ 10212 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10213 sizeof(struct lpfc_sli4_cfg_mhdr)); 10214 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10215 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10216 length, LPFC_SLI4_MBX_EMBED); 10217 if (!phba->sli4_hba.intr_enable) 10218 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10219 else { 10220 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10221 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10222 } 10223 if (unlikely(rc)) 10224 return rc; 10225 sli4_params = &phba->sli4_hba.pc_sli4_params; 10226 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10227 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10228 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10229 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10230 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10231 mbx_sli4_parameters); 10232 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10233 mbx_sli4_parameters); 10234 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10235 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10236 else 10237 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10238 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10239 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10240 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10241 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10242 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10243 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10244 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10245 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10246 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10247 mbx_sli4_parameters); 10248 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10249 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10250 mbx_sli4_parameters); 10251 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10252 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10253 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10254 bf_get(cfg_xib, mbx_sli4_parameters)); 10255 10256 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10257 !phba->nvme_support) { 10258 phba->nvme_support = 0; 10259 phba->nvmet_support = 0; 10260 phba->cfg_nvmet_mrq = 0; 10261 phba->cfg_nvme_io_channel = 0; 10262 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10264 "6101 Disabling NVME support: " 10265 "Not supported by firmware: %d %d\n", 10266 bf_get(cfg_nvme, mbx_sli4_parameters), 10267 bf_get(cfg_xib, mbx_sli4_parameters)); 10268 10269 /* If firmware doesn't support NVME, just use SCSI support */ 10270 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10271 return -ENODEV; 10272 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10273 } 10274 10275 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10276 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10277 10278 /* Make sure that sge_supp_len can be handled by the driver */ 10279 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10280 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10281 10282 /* 10283 * Issue IOs with CDB embedded in WQE to minimized the number 10284 * of DMAs the firmware has to do. Setting this to 1 also forces 10285 * the driver to use 128 bytes WQEs for FCP IOs. 10286 */ 10287 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10288 phba->fcp_embed_io = 1; 10289 else 10290 phba->fcp_embed_io = 0; 10291 10292 /* 10293 * Check if the SLI port supports MDS Diagnostics 10294 */ 10295 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10296 phba->mds_diags_support = 1; 10297 else 10298 phba->mds_diags_support = 0; 10299 return 0; 10300 } 10301 10302 /** 10303 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10304 * @pdev: pointer to PCI device 10305 * @pid: pointer to PCI device identifier 10306 * 10307 * This routine is to be called to attach a device with SLI-3 interface spec 10308 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10309 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10310 * information of the device and driver to see if the driver state that it can 10311 * support this kind of device. If the match is successful, the driver core 10312 * invokes this routine. If this routine determines it can claim the HBA, it 10313 * does all the initialization that it needs to do to handle the HBA properly. 10314 * 10315 * Return code 10316 * 0 - driver can claim the device 10317 * negative value - driver can not claim the device 10318 **/ 10319 static int 10320 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10321 { 10322 struct lpfc_hba *phba; 10323 struct lpfc_vport *vport = NULL; 10324 struct Scsi_Host *shost = NULL; 10325 int error; 10326 uint32_t cfg_mode, intr_mode; 10327 10328 /* Allocate memory for HBA structure */ 10329 phba = lpfc_hba_alloc(pdev); 10330 if (!phba) 10331 return -ENOMEM; 10332 10333 /* Perform generic PCI device enabling operation */ 10334 error = lpfc_enable_pci_dev(phba); 10335 if (error) 10336 goto out_free_phba; 10337 10338 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10339 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10340 if (error) 10341 goto out_disable_pci_dev; 10342 10343 /* Set up SLI-3 specific device PCI memory space */ 10344 error = lpfc_sli_pci_mem_setup(phba); 10345 if (error) { 10346 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10347 "1402 Failed to set up pci memory space.\n"); 10348 goto out_disable_pci_dev; 10349 } 10350 10351 /* Set up SLI-3 specific device driver resources */ 10352 error = lpfc_sli_driver_resource_setup(phba); 10353 if (error) { 10354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10355 "1404 Failed to set up driver resource.\n"); 10356 goto out_unset_pci_mem_s3; 10357 } 10358 10359 /* Initialize and populate the iocb list per host */ 10360 10361 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10362 if (error) { 10363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10364 "1405 Failed to initialize iocb list.\n"); 10365 goto out_unset_driver_resource_s3; 10366 } 10367 10368 /* Set up common device driver resources */ 10369 error = lpfc_setup_driver_resource_phase2(phba); 10370 if (error) { 10371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10372 "1406 Failed to set up driver resource.\n"); 10373 goto out_free_iocb_list; 10374 } 10375 10376 /* Get the default values for Model Name and Description */ 10377 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10378 10379 /* Create SCSI host to the physical port */ 10380 error = lpfc_create_shost(phba); 10381 if (error) { 10382 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10383 "1407 Failed to create scsi host.\n"); 10384 goto out_unset_driver_resource; 10385 } 10386 10387 /* Configure sysfs attributes */ 10388 vport = phba->pport; 10389 error = lpfc_alloc_sysfs_attr(vport); 10390 if (error) { 10391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10392 "1476 Failed to allocate sysfs attr\n"); 10393 goto out_destroy_shost; 10394 } 10395 10396 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10397 /* Now, trying to enable interrupt and bring up the device */ 10398 cfg_mode = phba->cfg_use_msi; 10399 while (true) { 10400 /* Put device to a known state before enabling interrupt */ 10401 lpfc_stop_port(phba); 10402 /* Configure and enable interrupt */ 10403 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10404 if (intr_mode == LPFC_INTR_ERROR) { 10405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10406 "0431 Failed to enable interrupt.\n"); 10407 error = -ENODEV; 10408 goto out_free_sysfs_attr; 10409 } 10410 /* SLI-3 HBA setup */ 10411 if (lpfc_sli_hba_setup(phba)) { 10412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10413 "1477 Failed to set up hba\n"); 10414 error = -ENODEV; 10415 goto out_remove_device; 10416 } 10417 10418 /* Wait 50ms for the interrupts of previous mailbox commands */ 10419 msleep(50); 10420 /* Check active interrupts on message signaled interrupts */ 10421 if (intr_mode == 0 || 10422 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10423 /* Log the current active interrupt mode */ 10424 phba->intr_mode = intr_mode; 10425 lpfc_log_intr_mode(phba, intr_mode); 10426 break; 10427 } else { 10428 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10429 "0447 Configure interrupt mode (%d) " 10430 "failed active interrupt test.\n", 10431 intr_mode); 10432 /* Disable the current interrupt mode */ 10433 lpfc_sli_disable_intr(phba); 10434 /* Try next level of interrupt mode */ 10435 cfg_mode = --intr_mode; 10436 } 10437 } 10438 10439 /* Perform post initialization setup */ 10440 lpfc_post_init_setup(phba); 10441 10442 /* Check if there are static vports to be created. */ 10443 lpfc_create_static_vport(phba); 10444 10445 return 0; 10446 10447 out_remove_device: 10448 lpfc_unset_hba(phba); 10449 out_free_sysfs_attr: 10450 lpfc_free_sysfs_attr(vport); 10451 out_destroy_shost: 10452 lpfc_destroy_shost(phba); 10453 out_unset_driver_resource: 10454 lpfc_unset_driver_resource_phase2(phba); 10455 out_free_iocb_list: 10456 lpfc_free_iocb_list(phba); 10457 out_unset_driver_resource_s3: 10458 lpfc_sli_driver_resource_unset(phba); 10459 out_unset_pci_mem_s3: 10460 lpfc_sli_pci_mem_unset(phba); 10461 out_disable_pci_dev: 10462 lpfc_disable_pci_dev(phba); 10463 if (shost) 10464 scsi_host_put(shost); 10465 out_free_phba: 10466 lpfc_hba_free(phba); 10467 return error; 10468 } 10469 10470 /** 10471 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10472 * @pdev: pointer to PCI device 10473 * 10474 * This routine is to be called to disattach a device with SLI-3 interface 10475 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10476 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10477 * device to be removed from the PCI subsystem properly. 10478 **/ 10479 static void 10480 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10481 { 10482 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10483 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10484 struct lpfc_vport **vports; 10485 struct lpfc_hba *phba = vport->phba; 10486 int i; 10487 10488 spin_lock_irq(&phba->hbalock); 10489 vport->load_flag |= FC_UNLOADING; 10490 spin_unlock_irq(&phba->hbalock); 10491 10492 lpfc_free_sysfs_attr(vport); 10493 10494 /* Release all the vports against this physical port */ 10495 vports = lpfc_create_vport_work_array(phba); 10496 if (vports != NULL) 10497 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10498 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10499 continue; 10500 fc_vport_terminate(vports[i]->fc_vport); 10501 } 10502 lpfc_destroy_vport_work_array(phba, vports); 10503 10504 /* Remove FC host and then SCSI host with the physical port */ 10505 fc_remove_host(shost); 10506 scsi_remove_host(shost); 10507 10508 lpfc_cleanup(vport); 10509 10510 /* 10511 * Bring down the SLI Layer. This step disable all interrupts, 10512 * clears the rings, discards all mailbox commands, and resets 10513 * the HBA. 10514 */ 10515 10516 /* HBA interrupt will be disabled after this call */ 10517 lpfc_sli_hba_down(phba); 10518 /* Stop kthread signal shall trigger work_done one more time */ 10519 kthread_stop(phba->worker_thread); 10520 /* Final cleanup of txcmplq and reset the HBA */ 10521 lpfc_sli_brdrestart(phba); 10522 10523 kfree(phba->vpi_bmask); 10524 kfree(phba->vpi_ids); 10525 10526 lpfc_stop_hba_timers(phba); 10527 spin_lock_irq(&phba->hbalock); 10528 list_del_init(&vport->listentry); 10529 spin_unlock_irq(&phba->hbalock); 10530 10531 lpfc_debugfs_terminate(vport); 10532 10533 /* Disable SR-IOV if enabled */ 10534 if (phba->cfg_sriov_nr_virtfn) 10535 pci_disable_sriov(pdev); 10536 10537 /* Disable interrupt */ 10538 lpfc_sli_disable_intr(phba); 10539 10540 scsi_host_put(shost); 10541 10542 /* 10543 * Call scsi_free before mem_free since scsi bufs are released to their 10544 * corresponding pools here. 10545 */ 10546 lpfc_scsi_free(phba); 10547 lpfc_mem_free_all(phba); 10548 10549 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10550 phba->hbqslimp.virt, phba->hbqslimp.phys); 10551 10552 /* Free resources associated with SLI2 interface */ 10553 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10554 phba->slim2p.virt, phba->slim2p.phys); 10555 10556 /* unmap adapter SLIM and Control Registers */ 10557 iounmap(phba->ctrl_regs_memmap_p); 10558 iounmap(phba->slim_memmap_p); 10559 10560 lpfc_hba_free(phba); 10561 10562 pci_release_mem_regions(pdev); 10563 pci_disable_device(pdev); 10564 } 10565 10566 /** 10567 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10568 * @pdev: pointer to PCI device 10569 * @msg: power management message 10570 * 10571 * This routine is to be called from the kernel's PCI subsystem to support 10572 * system Power Management (PM) to device with SLI-3 interface spec. When 10573 * PM invokes this method, it quiesces the device by stopping the driver's 10574 * worker thread for the device, turning off device's interrupt and DMA, 10575 * and bring the device offline. Note that as the driver implements the 10576 * minimum PM requirements to a power-aware driver's PM support for the 10577 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10578 * to the suspend() method call will be treated as SUSPEND and the driver will 10579 * fully reinitialize its device during resume() method call, the driver will 10580 * set device to PCI_D3hot state in PCI config space instead of setting it 10581 * according to the @msg provided by the PM. 10582 * 10583 * Return code 10584 * 0 - driver suspended the device 10585 * Error otherwise 10586 **/ 10587 static int 10588 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10589 { 10590 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10591 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10592 10593 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10594 "0473 PCI device Power Management suspend.\n"); 10595 10596 /* Bring down the device */ 10597 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10598 lpfc_offline(phba); 10599 kthread_stop(phba->worker_thread); 10600 10601 /* Disable interrupt from device */ 10602 lpfc_sli_disable_intr(phba); 10603 10604 /* Save device state to PCI config space */ 10605 pci_save_state(pdev); 10606 pci_set_power_state(pdev, PCI_D3hot); 10607 10608 return 0; 10609 } 10610 10611 /** 10612 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10613 * @pdev: pointer to PCI device 10614 * 10615 * This routine is to be called from the kernel's PCI subsystem to support 10616 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10617 * invokes this method, it restores the device's PCI config space state and 10618 * fully reinitializes the device and brings it online. Note that as the 10619 * driver implements the minimum PM requirements to a power-aware driver's 10620 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10621 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10622 * driver will fully reinitialize its device during resume() method call, 10623 * the device will be set to PCI_D0 directly in PCI config space before 10624 * restoring the state. 10625 * 10626 * Return code 10627 * 0 - driver suspended the device 10628 * Error otherwise 10629 **/ 10630 static int 10631 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10632 { 10633 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10634 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10635 uint32_t intr_mode; 10636 int error; 10637 10638 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10639 "0452 PCI device Power Management resume.\n"); 10640 10641 /* Restore device state from PCI config space */ 10642 pci_set_power_state(pdev, PCI_D0); 10643 pci_restore_state(pdev); 10644 10645 /* 10646 * As the new kernel behavior of pci_restore_state() API call clears 10647 * device saved_state flag, need to save the restored state again. 10648 */ 10649 pci_save_state(pdev); 10650 10651 if (pdev->is_busmaster) 10652 pci_set_master(pdev); 10653 10654 /* Startup the kernel thread for this host adapter. */ 10655 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10656 "lpfc_worker_%d", phba->brd_no); 10657 if (IS_ERR(phba->worker_thread)) { 10658 error = PTR_ERR(phba->worker_thread); 10659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10660 "0434 PM resume failed to start worker " 10661 "thread: error=x%x.\n", error); 10662 return error; 10663 } 10664 10665 /* Configure and enable interrupt */ 10666 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10667 if (intr_mode == LPFC_INTR_ERROR) { 10668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10669 "0430 PM resume Failed to enable interrupt\n"); 10670 return -EIO; 10671 } else 10672 phba->intr_mode = intr_mode; 10673 10674 /* Restart HBA and bring it online */ 10675 lpfc_sli_brdrestart(phba); 10676 lpfc_online(phba); 10677 10678 /* Log the current active interrupt mode */ 10679 lpfc_log_intr_mode(phba, phba->intr_mode); 10680 10681 return 0; 10682 } 10683 10684 /** 10685 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10686 * @phba: pointer to lpfc hba data structure. 10687 * 10688 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10689 * aborts all the outstanding SCSI I/Os to the pci device. 10690 **/ 10691 static void 10692 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10693 { 10694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10695 "2723 PCI channel I/O abort preparing for recovery\n"); 10696 10697 /* 10698 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10699 * and let the SCSI mid-layer to retry them to recover. 10700 */ 10701 lpfc_sli_abort_fcp_rings(phba); 10702 } 10703 10704 /** 10705 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10706 * @phba: pointer to lpfc hba data structure. 10707 * 10708 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10709 * disables the device interrupt and pci device, and aborts the internal FCP 10710 * pending I/Os. 10711 **/ 10712 static void 10713 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10714 { 10715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10716 "2710 PCI channel disable preparing for reset\n"); 10717 10718 /* Block any management I/Os to the device */ 10719 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10720 10721 /* Block all SCSI devices' I/Os on the host */ 10722 lpfc_scsi_dev_block(phba); 10723 10724 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10725 lpfc_sli_flush_fcp_rings(phba); 10726 10727 /* stop all timers */ 10728 lpfc_stop_hba_timers(phba); 10729 10730 /* Disable interrupt and pci device */ 10731 lpfc_sli_disable_intr(phba); 10732 pci_disable_device(phba->pcidev); 10733 } 10734 10735 /** 10736 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10737 * @phba: pointer to lpfc hba data structure. 10738 * 10739 * This routine is called to prepare the SLI3 device for PCI slot permanently 10740 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10741 * pending I/Os. 10742 **/ 10743 static void 10744 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10745 { 10746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10747 "2711 PCI channel permanent disable for failure\n"); 10748 /* Block all SCSI devices' I/Os on the host */ 10749 lpfc_scsi_dev_block(phba); 10750 10751 /* stop all timers */ 10752 lpfc_stop_hba_timers(phba); 10753 10754 /* Clean up all driver's outstanding SCSI I/Os */ 10755 lpfc_sli_flush_fcp_rings(phba); 10756 } 10757 10758 /** 10759 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10760 * @pdev: pointer to PCI device. 10761 * @state: the current PCI connection state. 10762 * 10763 * This routine is called from the PCI subsystem for I/O error handling to 10764 * device with SLI-3 interface spec. This function is called by the PCI 10765 * subsystem after a PCI bus error affecting this device has been detected. 10766 * When this function is invoked, it will need to stop all the I/Os and 10767 * interrupt(s) to the device. Once that is done, it will return 10768 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10769 * as desired. 10770 * 10771 * Return codes 10772 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10773 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10774 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10775 **/ 10776 static pci_ers_result_t 10777 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10778 { 10779 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10780 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10781 10782 switch (state) { 10783 case pci_channel_io_normal: 10784 /* Non-fatal error, prepare for recovery */ 10785 lpfc_sli_prep_dev_for_recover(phba); 10786 return PCI_ERS_RESULT_CAN_RECOVER; 10787 case pci_channel_io_frozen: 10788 /* Fatal error, prepare for slot reset */ 10789 lpfc_sli_prep_dev_for_reset(phba); 10790 return PCI_ERS_RESULT_NEED_RESET; 10791 case pci_channel_io_perm_failure: 10792 /* Permanent failure, prepare for device down */ 10793 lpfc_sli_prep_dev_for_perm_failure(phba); 10794 return PCI_ERS_RESULT_DISCONNECT; 10795 default: 10796 /* Unknown state, prepare and request slot reset */ 10797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10798 "0472 Unknown PCI error state: x%x\n", state); 10799 lpfc_sli_prep_dev_for_reset(phba); 10800 return PCI_ERS_RESULT_NEED_RESET; 10801 } 10802 } 10803 10804 /** 10805 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10806 * @pdev: pointer to PCI device. 10807 * 10808 * This routine is called from the PCI subsystem for error handling to 10809 * device with SLI-3 interface spec. This is called after PCI bus has been 10810 * reset to restart the PCI card from scratch, as if from a cold-boot. 10811 * During the PCI subsystem error recovery, after driver returns 10812 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10813 * recovery and then call this routine before calling the .resume method 10814 * to recover the device. This function will initialize the HBA device, 10815 * enable the interrupt, but it will just put the HBA to offline state 10816 * without passing any I/O traffic. 10817 * 10818 * Return codes 10819 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10820 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10821 */ 10822 static pci_ers_result_t 10823 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10824 { 10825 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10826 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10827 struct lpfc_sli *psli = &phba->sli; 10828 uint32_t intr_mode; 10829 10830 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10831 if (pci_enable_device_mem(pdev)) { 10832 printk(KERN_ERR "lpfc: Cannot re-enable " 10833 "PCI device after reset.\n"); 10834 return PCI_ERS_RESULT_DISCONNECT; 10835 } 10836 10837 pci_restore_state(pdev); 10838 10839 /* 10840 * As the new kernel behavior of pci_restore_state() API call clears 10841 * device saved_state flag, need to save the restored state again. 10842 */ 10843 pci_save_state(pdev); 10844 10845 if (pdev->is_busmaster) 10846 pci_set_master(pdev); 10847 10848 spin_lock_irq(&phba->hbalock); 10849 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10850 spin_unlock_irq(&phba->hbalock); 10851 10852 /* Configure and enable interrupt */ 10853 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10854 if (intr_mode == LPFC_INTR_ERROR) { 10855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10856 "0427 Cannot re-enable interrupt after " 10857 "slot reset.\n"); 10858 return PCI_ERS_RESULT_DISCONNECT; 10859 } else 10860 phba->intr_mode = intr_mode; 10861 10862 /* Take device offline, it will perform cleanup */ 10863 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10864 lpfc_offline(phba); 10865 lpfc_sli_brdrestart(phba); 10866 10867 /* Log the current active interrupt mode */ 10868 lpfc_log_intr_mode(phba, phba->intr_mode); 10869 10870 return PCI_ERS_RESULT_RECOVERED; 10871 } 10872 10873 /** 10874 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10875 * @pdev: pointer to PCI device 10876 * 10877 * This routine is called from the PCI subsystem for error handling to device 10878 * with SLI-3 interface spec. It is called when kernel error recovery tells 10879 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10880 * error recovery. After this call, traffic can start to flow from this device 10881 * again. 10882 */ 10883 static void 10884 lpfc_io_resume_s3(struct pci_dev *pdev) 10885 { 10886 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10887 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10888 10889 /* Bring device online, it will be no-op for non-fatal error resume */ 10890 lpfc_online(phba); 10891 10892 /* Clean up Advanced Error Reporting (AER) if needed */ 10893 if (phba->hba_flag & HBA_AER_ENABLED) 10894 pci_cleanup_aer_uncorrect_error_status(pdev); 10895 } 10896 10897 /** 10898 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10899 * @phba: pointer to lpfc hba data structure. 10900 * 10901 * returns the number of ELS/CT IOCBs to reserve 10902 **/ 10903 int 10904 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10905 { 10906 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10907 10908 if (phba->sli_rev == LPFC_SLI_REV4) { 10909 if (max_xri <= 100) 10910 return 10; 10911 else if (max_xri <= 256) 10912 return 25; 10913 else if (max_xri <= 512) 10914 return 50; 10915 else if (max_xri <= 1024) 10916 return 100; 10917 else if (max_xri <= 1536) 10918 return 150; 10919 else if (max_xri <= 2048) 10920 return 200; 10921 else 10922 return 250; 10923 } else 10924 return 0; 10925 } 10926 10927 /** 10928 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 10929 * @phba: pointer to lpfc hba data structure. 10930 * 10931 * returns the number of ELS/CT + NVMET IOCBs to reserve 10932 **/ 10933 int 10934 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 10935 { 10936 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 10937 10938 if (phba->nvmet_support) 10939 max_xri += LPFC_NVMET_BUF_POST; 10940 return max_xri; 10941 } 10942 10943 10944 /** 10945 * lpfc_write_firmware - attempt to write a firmware image to the port 10946 * @fw: pointer to firmware image returned from request_firmware. 10947 * @phba: pointer to lpfc hba data structure. 10948 * 10949 **/ 10950 static void 10951 lpfc_write_firmware(const struct firmware *fw, void *context) 10952 { 10953 struct lpfc_hba *phba = (struct lpfc_hba *)context; 10954 char fwrev[FW_REV_STR_SIZE]; 10955 struct lpfc_grp_hdr *image; 10956 struct list_head dma_buffer_list; 10957 int i, rc = 0; 10958 struct lpfc_dmabuf *dmabuf, *next; 10959 uint32_t offset = 0, temp_offset = 0; 10960 uint32_t magic_number, ftype, fid, fsize; 10961 10962 /* It can be null in no-wait mode, sanity check */ 10963 if (!fw) { 10964 rc = -ENXIO; 10965 goto out; 10966 } 10967 image = (struct lpfc_grp_hdr *)fw->data; 10968 10969 magic_number = be32_to_cpu(image->magic_number); 10970 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 10971 fid = bf_get_be32(lpfc_grp_hdr_id, image), 10972 fsize = be32_to_cpu(image->size); 10973 10974 INIT_LIST_HEAD(&dma_buffer_list); 10975 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 10976 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 10977 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 10978 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10979 "3022 Invalid FW image found. " 10980 "Magic:%x Type:%x ID:%x Size %d %zd\n", 10981 magic_number, ftype, fid, fsize, fw->size); 10982 rc = -EINVAL; 10983 goto release_out; 10984 } 10985 lpfc_decode_firmware_rev(phba, fwrev, 1); 10986 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 10987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10988 "3023 Updating Firmware, Current Version:%s " 10989 "New Version:%s\n", 10990 fwrev, image->revision); 10991 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 10992 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 10993 GFP_KERNEL); 10994 if (!dmabuf) { 10995 rc = -ENOMEM; 10996 goto release_out; 10997 } 10998 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 10999 SLI4_PAGE_SIZE, 11000 &dmabuf->phys, 11001 GFP_KERNEL); 11002 if (!dmabuf->virt) { 11003 kfree(dmabuf); 11004 rc = -ENOMEM; 11005 goto release_out; 11006 } 11007 list_add_tail(&dmabuf->list, &dma_buffer_list); 11008 } 11009 while (offset < fw->size) { 11010 temp_offset = offset; 11011 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11012 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11013 memcpy(dmabuf->virt, 11014 fw->data + temp_offset, 11015 fw->size - temp_offset); 11016 temp_offset = fw->size; 11017 break; 11018 } 11019 memcpy(dmabuf->virt, fw->data + temp_offset, 11020 SLI4_PAGE_SIZE); 11021 temp_offset += SLI4_PAGE_SIZE; 11022 } 11023 rc = lpfc_wr_object(phba, &dma_buffer_list, 11024 (fw->size - offset), &offset); 11025 if (rc) 11026 goto release_out; 11027 } 11028 rc = offset; 11029 } 11030 11031 release_out: 11032 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11033 list_del(&dmabuf->list); 11034 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11035 dmabuf->virt, dmabuf->phys); 11036 kfree(dmabuf); 11037 } 11038 release_firmware(fw); 11039 out: 11040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11041 "3024 Firmware update done: %d.\n", rc); 11042 return; 11043 } 11044 11045 /** 11046 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11047 * @phba: pointer to lpfc hba data structure. 11048 * 11049 * This routine is called to perform Linux generic firmware upgrade on device 11050 * that supports such feature. 11051 **/ 11052 int 11053 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11054 { 11055 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11056 int ret; 11057 const struct firmware *fw; 11058 11059 /* Only supported on SLI4 interface type 2 for now */ 11060 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11061 LPFC_SLI_INTF_IF_TYPE_2) 11062 return -EPERM; 11063 11064 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11065 11066 if (fw_upgrade == INT_FW_UPGRADE) { 11067 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11068 file_name, &phba->pcidev->dev, 11069 GFP_KERNEL, (void *)phba, 11070 lpfc_write_firmware); 11071 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11072 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11073 if (!ret) 11074 lpfc_write_firmware(fw, (void *)phba); 11075 } else { 11076 ret = -EINVAL; 11077 } 11078 11079 return ret; 11080 } 11081 11082 /** 11083 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11084 * @pdev: pointer to PCI device 11085 * @pid: pointer to PCI device identifier 11086 * 11087 * This routine is called from the kernel's PCI subsystem to device with 11088 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11089 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11090 * information of the device and driver to see if the driver state that it 11091 * can support this kind of device. If the match is successful, the driver 11092 * core invokes this routine. If this routine determines it can claim the HBA, 11093 * it does all the initialization that it needs to do to handle the HBA 11094 * properly. 11095 * 11096 * Return code 11097 * 0 - driver can claim the device 11098 * negative value - driver can not claim the device 11099 **/ 11100 static int 11101 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11102 { 11103 struct lpfc_hba *phba; 11104 struct lpfc_vport *vport = NULL; 11105 struct Scsi_Host *shost = NULL; 11106 int error, cnt; 11107 uint32_t cfg_mode, intr_mode; 11108 11109 /* Allocate memory for HBA structure */ 11110 phba = lpfc_hba_alloc(pdev); 11111 if (!phba) 11112 return -ENOMEM; 11113 11114 /* Perform generic PCI device enabling operation */ 11115 error = lpfc_enable_pci_dev(phba); 11116 if (error) 11117 goto out_free_phba; 11118 11119 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11120 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11121 if (error) 11122 goto out_disable_pci_dev; 11123 11124 /* Set up SLI-4 specific device PCI memory space */ 11125 error = lpfc_sli4_pci_mem_setup(phba); 11126 if (error) { 11127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11128 "1410 Failed to set up pci memory space.\n"); 11129 goto out_disable_pci_dev; 11130 } 11131 11132 /* Set up SLI-4 Specific device driver resources */ 11133 error = lpfc_sli4_driver_resource_setup(phba); 11134 if (error) { 11135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11136 "1412 Failed to set up driver resource.\n"); 11137 goto out_unset_pci_mem_s4; 11138 } 11139 11140 cnt = phba->cfg_iocb_cnt * 1024; 11141 if (phba->nvmet_support) 11142 cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq; 11143 11144 /* Initialize and populate the iocb list per host */ 11145 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11146 "2821 initialize iocb list %d total %d\n", 11147 phba->cfg_iocb_cnt, cnt); 11148 error = lpfc_init_iocb_list(phba, cnt); 11149 11150 if (error) { 11151 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11152 "1413 Failed to initialize iocb list.\n"); 11153 goto out_unset_driver_resource_s4; 11154 } 11155 11156 INIT_LIST_HEAD(&phba->active_rrq_list); 11157 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11158 11159 /* Set up common device driver resources */ 11160 error = lpfc_setup_driver_resource_phase2(phba); 11161 if (error) { 11162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11163 "1414 Failed to set up driver resource.\n"); 11164 goto out_free_iocb_list; 11165 } 11166 11167 /* Get the default values for Model Name and Description */ 11168 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11169 11170 /* Create SCSI host to the physical port */ 11171 error = lpfc_create_shost(phba); 11172 if (error) { 11173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11174 "1415 Failed to create scsi host.\n"); 11175 goto out_unset_driver_resource; 11176 } 11177 11178 /* Configure sysfs attributes */ 11179 vport = phba->pport; 11180 error = lpfc_alloc_sysfs_attr(vport); 11181 if (error) { 11182 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11183 "1416 Failed to allocate sysfs attr\n"); 11184 goto out_destroy_shost; 11185 } 11186 11187 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11188 /* Now, trying to enable interrupt and bring up the device */ 11189 cfg_mode = phba->cfg_use_msi; 11190 11191 /* Put device to a known state before enabling interrupt */ 11192 lpfc_stop_port(phba); 11193 11194 /* Configure and enable interrupt */ 11195 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11196 if (intr_mode == LPFC_INTR_ERROR) { 11197 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11198 "0426 Failed to enable interrupt.\n"); 11199 error = -ENODEV; 11200 goto out_free_sysfs_attr; 11201 } 11202 /* Default to single EQ for non-MSI-X */ 11203 if (phba->intr_type != MSIX) { 11204 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11205 phba->cfg_fcp_io_channel = 1; 11206 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11207 phba->cfg_nvme_io_channel = 1; 11208 if (phba->nvmet_support) 11209 phba->cfg_nvmet_mrq = 1; 11210 } 11211 phba->io_channel_irqs = 1; 11212 } 11213 11214 /* Set up SLI-4 HBA */ 11215 if (lpfc_sli4_hba_setup(phba)) { 11216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11217 "1421 Failed to set up hba\n"); 11218 error = -ENODEV; 11219 goto out_disable_intr; 11220 } 11221 11222 /* Log the current active interrupt mode */ 11223 phba->intr_mode = intr_mode; 11224 lpfc_log_intr_mode(phba, intr_mode); 11225 11226 /* Perform post initialization setup */ 11227 lpfc_post_init_setup(phba); 11228 11229 /* NVME support in FW earlier in the driver load corrects the 11230 * FC4 type making a check for nvme_support unnecessary. 11231 */ 11232 if ((phba->nvmet_support == 0) && 11233 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11234 /* Create NVME binding with nvme_fc_transport. This 11235 * ensures the vport is initialized. If the localport 11236 * create fails, it should not unload the driver to 11237 * support field issues. 11238 */ 11239 error = lpfc_nvme_create_localport(vport); 11240 if (error) { 11241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11242 "6004 NVME registration failed, " 11243 "error x%x\n", 11244 error); 11245 } 11246 } 11247 11248 /* check for firmware upgrade or downgrade */ 11249 if (phba->cfg_request_firmware_upgrade) 11250 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11251 11252 /* Check if there are static vports to be created. */ 11253 lpfc_create_static_vport(phba); 11254 return 0; 11255 11256 out_disable_intr: 11257 lpfc_sli4_disable_intr(phba); 11258 out_free_sysfs_attr: 11259 lpfc_free_sysfs_attr(vport); 11260 out_destroy_shost: 11261 lpfc_destroy_shost(phba); 11262 out_unset_driver_resource: 11263 lpfc_unset_driver_resource_phase2(phba); 11264 out_free_iocb_list: 11265 lpfc_free_iocb_list(phba); 11266 out_unset_driver_resource_s4: 11267 lpfc_sli4_driver_resource_unset(phba); 11268 out_unset_pci_mem_s4: 11269 lpfc_sli4_pci_mem_unset(phba); 11270 out_disable_pci_dev: 11271 lpfc_disable_pci_dev(phba); 11272 if (shost) 11273 scsi_host_put(shost); 11274 out_free_phba: 11275 lpfc_hba_free(phba); 11276 return error; 11277 } 11278 11279 /** 11280 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11281 * @pdev: pointer to PCI device 11282 * 11283 * This routine is called from the kernel's PCI subsystem to device with 11284 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11285 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11286 * device to be removed from the PCI subsystem properly. 11287 **/ 11288 static void 11289 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11290 { 11291 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11292 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11293 struct lpfc_vport **vports; 11294 struct lpfc_hba *phba = vport->phba; 11295 int i; 11296 11297 /* Mark the device unloading flag */ 11298 spin_lock_irq(&phba->hbalock); 11299 vport->load_flag |= FC_UNLOADING; 11300 spin_unlock_irq(&phba->hbalock); 11301 11302 /* Free the HBA sysfs attributes */ 11303 lpfc_free_sysfs_attr(vport); 11304 11305 /* Release all the vports against this physical port */ 11306 vports = lpfc_create_vport_work_array(phba); 11307 if (vports != NULL) 11308 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11309 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11310 continue; 11311 fc_vport_terminate(vports[i]->fc_vport); 11312 } 11313 lpfc_destroy_vport_work_array(phba, vports); 11314 11315 /* Remove FC host and then SCSI host with the physical port */ 11316 fc_remove_host(shost); 11317 scsi_remove_host(shost); 11318 11319 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11320 * localports are destroyed after to cleanup all transport memory. 11321 */ 11322 lpfc_cleanup(vport); 11323 lpfc_nvmet_destroy_targetport(phba); 11324 lpfc_nvme_destroy_localport(vport); 11325 11326 /* 11327 * Bring down the SLI Layer. This step disables all interrupts, 11328 * clears the rings, discards all mailbox commands, and resets 11329 * the HBA FCoE function. 11330 */ 11331 lpfc_debugfs_terminate(vport); 11332 lpfc_sli4_hba_unset(phba); 11333 11334 spin_lock_irq(&phba->hbalock); 11335 list_del_init(&vport->listentry); 11336 spin_unlock_irq(&phba->hbalock); 11337 11338 /* Perform scsi free before driver resource_unset since scsi 11339 * buffers are released to their corresponding pools here. 11340 */ 11341 lpfc_scsi_free(phba); 11342 lpfc_nvme_free(phba); 11343 lpfc_free_iocb_list(phba); 11344 11345 lpfc_sli4_driver_resource_unset(phba); 11346 11347 /* Unmap adapter Control and Doorbell registers */ 11348 lpfc_sli4_pci_mem_unset(phba); 11349 11350 /* Release PCI resources and disable device's PCI function */ 11351 scsi_host_put(shost); 11352 lpfc_disable_pci_dev(phba); 11353 11354 /* Finally, free the driver's device data structure */ 11355 lpfc_hba_free(phba); 11356 11357 return; 11358 } 11359 11360 /** 11361 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11362 * @pdev: pointer to PCI device 11363 * @msg: power management message 11364 * 11365 * This routine is called from the kernel's PCI subsystem to support system 11366 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11367 * this method, it quiesces the device by stopping the driver's worker 11368 * thread for the device, turning off device's interrupt and DMA, and bring 11369 * the device offline. Note that as the driver implements the minimum PM 11370 * requirements to a power-aware driver's PM support for suspend/resume -- all 11371 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11372 * method call will be treated as SUSPEND and the driver will fully 11373 * reinitialize its device during resume() method call, the driver will set 11374 * device to PCI_D3hot state in PCI config space instead of setting it 11375 * according to the @msg provided by the PM. 11376 * 11377 * Return code 11378 * 0 - driver suspended the device 11379 * Error otherwise 11380 **/ 11381 static int 11382 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11383 { 11384 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11385 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11386 11387 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11388 "2843 PCI device Power Management suspend.\n"); 11389 11390 /* Bring down the device */ 11391 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11392 lpfc_offline(phba); 11393 kthread_stop(phba->worker_thread); 11394 11395 /* Disable interrupt from device */ 11396 lpfc_sli4_disable_intr(phba); 11397 lpfc_sli4_queue_destroy(phba); 11398 11399 /* Save device state to PCI config space */ 11400 pci_save_state(pdev); 11401 pci_set_power_state(pdev, PCI_D3hot); 11402 11403 return 0; 11404 } 11405 11406 /** 11407 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11408 * @pdev: pointer to PCI device 11409 * 11410 * This routine is called from the kernel's PCI subsystem to support system 11411 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11412 * this method, it restores the device's PCI config space state and fully 11413 * reinitializes the device and brings it online. Note that as the driver 11414 * implements the minimum PM requirements to a power-aware driver's PM for 11415 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11416 * to the suspend() method call will be treated as SUSPEND and the driver 11417 * will fully reinitialize its device during resume() method call, the device 11418 * will be set to PCI_D0 directly in PCI config space before restoring the 11419 * state. 11420 * 11421 * Return code 11422 * 0 - driver suspended the device 11423 * Error otherwise 11424 **/ 11425 static int 11426 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11427 { 11428 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11429 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11430 uint32_t intr_mode; 11431 int error; 11432 11433 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11434 "0292 PCI device Power Management resume.\n"); 11435 11436 /* Restore device state from PCI config space */ 11437 pci_set_power_state(pdev, PCI_D0); 11438 pci_restore_state(pdev); 11439 11440 /* 11441 * As the new kernel behavior of pci_restore_state() API call clears 11442 * device saved_state flag, need to save the restored state again. 11443 */ 11444 pci_save_state(pdev); 11445 11446 if (pdev->is_busmaster) 11447 pci_set_master(pdev); 11448 11449 /* Startup the kernel thread for this host adapter. */ 11450 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11451 "lpfc_worker_%d", phba->brd_no); 11452 if (IS_ERR(phba->worker_thread)) { 11453 error = PTR_ERR(phba->worker_thread); 11454 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11455 "0293 PM resume failed to start worker " 11456 "thread: error=x%x.\n", error); 11457 return error; 11458 } 11459 11460 /* Configure and enable interrupt */ 11461 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11462 if (intr_mode == LPFC_INTR_ERROR) { 11463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11464 "0294 PM resume Failed to enable interrupt\n"); 11465 return -EIO; 11466 } else 11467 phba->intr_mode = intr_mode; 11468 11469 /* Restart HBA and bring it online */ 11470 lpfc_sli_brdrestart(phba); 11471 lpfc_online(phba); 11472 11473 /* Log the current active interrupt mode */ 11474 lpfc_log_intr_mode(phba, phba->intr_mode); 11475 11476 return 0; 11477 } 11478 11479 /** 11480 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11481 * @phba: pointer to lpfc hba data structure. 11482 * 11483 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11484 * aborts all the outstanding SCSI I/Os to the pci device. 11485 **/ 11486 static void 11487 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11488 { 11489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11490 "2828 PCI channel I/O abort preparing for recovery\n"); 11491 /* 11492 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11493 * and let the SCSI mid-layer to retry them to recover. 11494 */ 11495 lpfc_sli_abort_fcp_rings(phba); 11496 } 11497 11498 /** 11499 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11500 * @phba: pointer to lpfc hba data structure. 11501 * 11502 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11503 * disables the device interrupt and pci device, and aborts the internal FCP 11504 * pending I/Os. 11505 **/ 11506 static void 11507 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11508 { 11509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11510 "2826 PCI channel disable preparing for reset\n"); 11511 11512 /* Block any management I/Os to the device */ 11513 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11514 11515 /* Block all SCSI devices' I/Os on the host */ 11516 lpfc_scsi_dev_block(phba); 11517 11518 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11519 lpfc_sli_flush_fcp_rings(phba); 11520 11521 /* stop all timers */ 11522 lpfc_stop_hba_timers(phba); 11523 11524 /* Disable interrupt and pci device */ 11525 lpfc_sli4_disable_intr(phba); 11526 lpfc_sli4_queue_destroy(phba); 11527 pci_disable_device(phba->pcidev); 11528 } 11529 11530 /** 11531 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11532 * @phba: pointer to lpfc hba data structure. 11533 * 11534 * This routine is called to prepare the SLI4 device for PCI slot permanently 11535 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11536 * pending I/Os. 11537 **/ 11538 static void 11539 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11540 { 11541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11542 "2827 PCI channel permanent disable for failure\n"); 11543 11544 /* Block all SCSI devices' I/Os on the host */ 11545 lpfc_scsi_dev_block(phba); 11546 11547 /* stop all timers */ 11548 lpfc_stop_hba_timers(phba); 11549 11550 /* Clean up all driver's outstanding SCSI I/Os */ 11551 lpfc_sli_flush_fcp_rings(phba); 11552 } 11553 11554 /** 11555 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11556 * @pdev: pointer to PCI device. 11557 * @state: the current PCI connection state. 11558 * 11559 * This routine is called from the PCI subsystem for error handling to device 11560 * with SLI-4 interface spec. This function is called by the PCI subsystem 11561 * after a PCI bus error affecting this device has been detected. When this 11562 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11563 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11564 * for the PCI subsystem to perform proper recovery as desired. 11565 * 11566 * Return codes 11567 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11568 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11569 **/ 11570 static pci_ers_result_t 11571 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11572 { 11573 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11574 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11575 11576 switch (state) { 11577 case pci_channel_io_normal: 11578 /* Non-fatal error, prepare for recovery */ 11579 lpfc_sli4_prep_dev_for_recover(phba); 11580 return PCI_ERS_RESULT_CAN_RECOVER; 11581 case pci_channel_io_frozen: 11582 /* Fatal error, prepare for slot reset */ 11583 lpfc_sli4_prep_dev_for_reset(phba); 11584 return PCI_ERS_RESULT_NEED_RESET; 11585 case pci_channel_io_perm_failure: 11586 /* Permanent failure, prepare for device down */ 11587 lpfc_sli4_prep_dev_for_perm_failure(phba); 11588 return PCI_ERS_RESULT_DISCONNECT; 11589 default: 11590 /* Unknown state, prepare and request slot reset */ 11591 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11592 "2825 Unknown PCI error state: x%x\n", state); 11593 lpfc_sli4_prep_dev_for_reset(phba); 11594 return PCI_ERS_RESULT_NEED_RESET; 11595 } 11596 } 11597 11598 /** 11599 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11600 * @pdev: pointer to PCI device. 11601 * 11602 * This routine is called from the PCI subsystem for error handling to device 11603 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11604 * restart the PCI card from scratch, as if from a cold-boot. During the 11605 * PCI subsystem error recovery, after the driver returns 11606 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11607 * recovery and then call this routine before calling the .resume method to 11608 * recover the device. This function will initialize the HBA device, enable 11609 * the interrupt, but it will just put the HBA to offline state without 11610 * passing any I/O traffic. 11611 * 11612 * Return codes 11613 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11614 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11615 */ 11616 static pci_ers_result_t 11617 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11618 { 11619 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11620 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11621 struct lpfc_sli *psli = &phba->sli; 11622 uint32_t intr_mode; 11623 11624 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11625 if (pci_enable_device_mem(pdev)) { 11626 printk(KERN_ERR "lpfc: Cannot re-enable " 11627 "PCI device after reset.\n"); 11628 return PCI_ERS_RESULT_DISCONNECT; 11629 } 11630 11631 pci_restore_state(pdev); 11632 11633 /* 11634 * As the new kernel behavior of pci_restore_state() API call clears 11635 * device saved_state flag, need to save the restored state again. 11636 */ 11637 pci_save_state(pdev); 11638 11639 if (pdev->is_busmaster) 11640 pci_set_master(pdev); 11641 11642 spin_lock_irq(&phba->hbalock); 11643 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11644 spin_unlock_irq(&phba->hbalock); 11645 11646 /* Configure and enable interrupt */ 11647 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11648 if (intr_mode == LPFC_INTR_ERROR) { 11649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11650 "2824 Cannot re-enable interrupt after " 11651 "slot reset.\n"); 11652 return PCI_ERS_RESULT_DISCONNECT; 11653 } else 11654 phba->intr_mode = intr_mode; 11655 11656 /* Log the current active interrupt mode */ 11657 lpfc_log_intr_mode(phba, phba->intr_mode); 11658 11659 return PCI_ERS_RESULT_RECOVERED; 11660 } 11661 11662 /** 11663 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11664 * @pdev: pointer to PCI device 11665 * 11666 * This routine is called from the PCI subsystem for error handling to device 11667 * with SLI-4 interface spec. It is called when kernel error recovery tells 11668 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11669 * error recovery. After this call, traffic can start to flow from this device 11670 * again. 11671 **/ 11672 static void 11673 lpfc_io_resume_s4(struct pci_dev *pdev) 11674 { 11675 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11676 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11677 11678 /* 11679 * In case of slot reset, as function reset is performed through 11680 * mailbox command which needs DMA to be enabled, this operation 11681 * has to be moved to the io resume phase. Taking device offline 11682 * will perform the necessary cleanup. 11683 */ 11684 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11685 /* Perform device reset */ 11686 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11687 lpfc_offline(phba); 11688 lpfc_sli_brdrestart(phba); 11689 /* Bring the device back online */ 11690 lpfc_online(phba); 11691 } 11692 11693 /* Clean up Advanced Error Reporting (AER) if needed */ 11694 if (phba->hba_flag & HBA_AER_ENABLED) 11695 pci_cleanup_aer_uncorrect_error_status(pdev); 11696 } 11697 11698 /** 11699 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11700 * @pdev: pointer to PCI device 11701 * @pid: pointer to PCI device identifier 11702 * 11703 * This routine is to be registered to the kernel's PCI subsystem. When an 11704 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11705 * at PCI device-specific information of the device and driver to see if the 11706 * driver state that it can support this kind of device. If the match is 11707 * successful, the driver core invokes this routine. This routine dispatches 11708 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11709 * do all the initialization that it needs to do to handle the HBA device 11710 * properly. 11711 * 11712 * Return code 11713 * 0 - driver can claim the device 11714 * negative value - driver can not claim the device 11715 **/ 11716 static int 11717 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11718 { 11719 int rc; 11720 struct lpfc_sli_intf intf; 11721 11722 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11723 return -ENODEV; 11724 11725 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11726 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11727 rc = lpfc_pci_probe_one_s4(pdev, pid); 11728 else 11729 rc = lpfc_pci_probe_one_s3(pdev, pid); 11730 11731 return rc; 11732 } 11733 11734 /** 11735 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11736 * @pdev: pointer to PCI device 11737 * 11738 * This routine is to be registered to the kernel's PCI subsystem. When an 11739 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11740 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11741 * remove routine, which will perform all the necessary cleanup for the 11742 * device to be removed from the PCI subsystem properly. 11743 **/ 11744 static void 11745 lpfc_pci_remove_one(struct pci_dev *pdev) 11746 { 11747 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11748 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11749 11750 switch (phba->pci_dev_grp) { 11751 case LPFC_PCI_DEV_LP: 11752 lpfc_pci_remove_one_s3(pdev); 11753 break; 11754 case LPFC_PCI_DEV_OC: 11755 lpfc_pci_remove_one_s4(pdev); 11756 break; 11757 default: 11758 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11759 "1424 Invalid PCI device group: 0x%x\n", 11760 phba->pci_dev_grp); 11761 break; 11762 } 11763 return; 11764 } 11765 11766 /** 11767 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11768 * @pdev: pointer to PCI device 11769 * @msg: power management message 11770 * 11771 * This routine is to be registered to the kernel's PCI subsystem to support 11772 * system Power Management (PM). When PM invokes this method, it dispatches 11773 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11774 * suspend the device. 11775 * 11776 * Return code 11777 * 0 - driver suspended the device 11778 * Error otherwise 11779 **/ 11780 static int 11781 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11782 { 11783 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11784 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11785 int rc = -ENODEV; 11786 11787 switch (phba->pci_dev_grp) { 11788 case LPFC_PCI_DEV_LP: 11789 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11790 break; 11791 case LPFC_PCI_DEV_OC: 11792 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11793 break; 11794 default: 11795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11796 "1425 Invalid PCI device group: 0x%x\n", 11797 phba->pci_dev_grp); 11798 break; 11799 } 11800 return rc; 11801 } 11802 11803 /** 11804 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11805 * @pdev: pointer to PCI device 11806 * 11807 * This routine is to be registered to the kernel's PCI subsystem to support 11808 * system Power Management (PM). When PM invokes this method, it dispatches 11809 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11810 * resume the device. 11811 * 11812 * Return code 11813 * 0 - driver suspended the device 11814 * Error otherwise 11815 **/ 11816 static int 11817 lpfc_pci_resume_one(struct pci_dev *pdev) 11818 { 11819 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11820 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11821 int rc = -ENODEV; 11822 11823 switch (phba->pci_dev_grp) { 11824 case LPFC_PCI_DEV_LP: 11825 rc = lpfc_pci_resume_one_s3(pdev); 11826 break; 11827 case LPFC_PCI_DEV_OC: 11828 rc = lpfc_pci_resume_one_s4(pdev); 11829 break; 11830 default: 11831 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11832 "1426 Invalid PCI device group: 0x%x\n", 11833 phba->pci_dev_grp); 11834 break; 11835 } 11836 return rc; 11837 } 11838 11839 /** 11840 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11841 * @pdev: pointer to PCI device. 11842 * @state: the current PCI connection state. 11843 * 11844 * This routine is registered to the PCI subsystem for error handling. This 11845 * function is called by the PCI subsystem after a PCI bus error affecting 11846 * this device has been detected. When this routine is invoked, it dispatches 11847 * the action to the proper SLI-3 or SLI-4 device error detected handling 11848 * routine, which will perform the proper error detected operation. 11849 * 11850 * Return codes 11851 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11852 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11853 **/ 11854 static pci_ers_result_t 11855 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11856 { 11857 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11858 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11859 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11860 11861 switch (phba->pci_dev_grp) { 11862 case LPFC_PCI_DEV_LP: 11863 rc = lpfc_io_error_detected_s3(pdev, state); 11864 break; 11865 case LPFC_PCI_DEV_OC: 11866 rc = lpfc_io_error_detected_s4(pdev, state); 11867 break; 11868 default: 11869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11870 "1427 Invalid PCI device group: 0x%x\n", 11871 phba->pci_dev_grp); 11872 break; 11873 } 11874 return rc; 11875 } 11876 11877 /** 11878 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11879 * @pdev: pointer to PCI device. 11880 * 11881 * This routine is registered to the PCI subsystem for error handling. This 11882 * function is called after PCI bus has been reset to restart the PCI card 11883 * from scratch, as if from a cold-boot. When this routine is invoked, it 11884 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11885 * routine, which will perform the proper device reset. 11886 * 11887 * Return codes 11888 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11889 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11890 **/ 11891 static pci_ers_result_t 11892 lpfc_io_slot_reset(struct pci_dev *pdev) 11893 { 11894 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11895 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11896 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11897 11898 switch (phba->pci_dev_grp) { 11899 case LPFC_PCI_DEV_LP: 11900 rc = lpfc_io_slot_reset_s3(pdev); 11901 break; 11902 case LPFC_PCI_DEV_OC: 11903 rc = lpfc_io_slot_reset_s4(pdev); 11904 break; 11905 default: 11906 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11907 "1428 Invalid PCI device group: 0x%x\n", 11908 phba->pci_dev_grp); 11909 break; 11910 } 11911 return rc; 11912 } 11913 11914 /** 11915 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11916 * @pdev: pointer to PCI device 11917 * 11918 * This routine is registered to the PCI subsystem for error handling. It 11919 * is called when kernel error recovery tells the lpfc driver that it is 11920 * OK to resume normal PCI operation after PCI bus error recovery. When 11921 * this routine is invoked, it dispatches the action to the proper SLI-3 11922 * or SLI-4 device io_resume routine, which will resume the device operation. 11923 **/ 11924 static void 11925 lpfc_io_resume(struct pci_dev *pdev) 11926 { 11927 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11928 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11929 11930 switch (phba->pci_dev_grp) { 11931 case LPFC_PCI_DEV_LP: 11932 lpfc_io_resume_s3(pdev); 11933 break; 11934 case LPFC_PCI_DEV_OC: 11935 lpfc_io_resume_s4(pdev); 11936 break; 11937 default: 11938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11939 "1429 Invalid PCI device group: 0x%x\n", 11940 phba->pci_dev_grp); 11941 break; 11942 } 11943 return; 11944 } 11945 11946 /** 11947 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 11948 * @phba: pointer to lpfc hba data structure. 11949 * 11950 * This routine checks to see if OAS is supported for this adapter. If 11951 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 11952 * the enable oas flag is cleared and the pool created for OAS device data 11953 * is destroyed. 11954 * 11955 **/ 11956 void 11957 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 11958 { 11959 11960 if (!phba->cfg_EnableXLane) 11961 return; 11962 11963 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 11964 phba->cfg_fof = 1; 11965 } else { 11966 phba->cfg_fof = 0; 11967 if (phba->device_data_mem_pool) 11968 mempool_destroy(phba->device_data_mem_pool); 11969 phba->device_data_mem_pool = NULL; 11970 } 11971 11972 return; 11973 } 11974 11975 /** 11976 * lpfc_fof_queue_setup - Set up all the fof queues 11977 * @phba: pointer to lpfc hba data structure. 11978 * 11979 * This routine is invoked to set up all the fof queues for the FC HBA 11980 * operation. 11981 * 11982 * Return codes 11983 * 0 - successful 11984 * -ENOMEM - No available memory 11985 **/ 11986 int 11987 lpfc_fof_queue_setup(struct lpfc_hba *phba) 11988 { 11989 struct lpfc_sli_ring *pring; 11990 int rc; 11991 11992 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 11993 if (rc) 11994 return -ENOMEM; 11995 11996 if (phba->cfg_fof) { 11997 11998 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 11999 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12000 if (rc) 12001 goto out_oas_cq; 12002 12003 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12004 phba->sli4_hba.oas_cq, LPFC_FCP); 12005 if (rc) 12006 goto out_oas_wq; 12007 12008 /* Bind this CQ/WQ to the NVME ring */ 12009 pring = phba->sli4_hba.oas_wq->pring; 12010 pring->sli.sli4.wqp = 12011 (void *)phba->sli4_hba.oas_wq; 12012 phba->sli4_hba.oas_cq->pring = pring; 12013 } 12014 12015 return 0; 12016 12017 out_oas_wq: 12018 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12019 out_oas_cq: 12020 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12021 return rc; 12022 12023 } 12024 12025 /** 12026 * lpfc_fof_queue_create - Create all the fof queues 12027 * @phba: pointer to lpfc hba data structure. 12028 * 12029 * This routine is invoked to allocate all the fof queues for the FC HBA 12030 * operation. For each SLI4 queue type, the parameters such as queue entry 12031 * count (queue depth) shall be taken from the module parameter. For now, 12032 * we just use some constant number as place holder. 12033 * 12034 * Return codes 12035 * 0 - successful 12036 * -ENOMEM - No availble memory 12037 * -EIO - The mailbox failed to complete successfully. 12038 **/ 12039 int 12040 lpfc_fof_queue_create(struct lpfc_hba *phba) 12041 { 12042 struct lpfc_queue *qdesc; 12043 uint32_t wqesize; 12044 12045 /* Create FOF EQ */ 12046 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12047 phba->sli4_hba.eq_ecount); 12048 if (!qdesc) 12049 goto out_error; 12050 12051 phba->sli4_hba.fof_eq = qdesc; 12052 12053 if (phba->cfg_fof) { 12054 12055 /* Create OAS CQ */ 12056 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12057 phba->sli4_hba.cq_ecount); 12058 if (!qdesc) 12059 goto out_error; 12060 12061 phba->sli4_hba.oas_cq = qdesc; 12062 12063 /* Create OAS WQ */ 12064 wqesize = (phba->fcp_embed_io) ? 12065 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12066 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12067 phba->sli4_hba.wq_ecount); 12068 12069 if (!qdesc) 12070 goto out_error; 12071 12072 phba->sli4_hba.oas_wq = qdesc; 12073 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12074 12075 } 12076 return 0; 12077 12078 out_error: 12079 lpfc_fof_queue_destroy(phba); 12080 return -ENOMEM; 12081 } 12082 12083 /** 12084 * lpfc_fof_queue_destroy - Destroy all the fof queues 12085 * @phba: pointer to lpfc hba data structure. 12086 * 12087 * This routine is invoked to release all the SLI4 queues with the FC HBA 12088 * operation. 12089 * 12090 * Return codes 12091 * 0 - successful 12092 **/ 12093 int 12094 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12095 { 12096 /* Release FOF Event queue */ 12097 if (phba->sli4_hba.fof_eq != NULL) { 12098 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12099 phba->sli4_hba.fof_eq = NULL; 12100 } 12101 12102 /* Release OAS Completion queue */ 12103 if (phba->sli4_hba.oas_cq != NULL) { 12104 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12105 phba->sli4_hba.oas_cq = NULL; 12106 } 12107 12108 /* Release OAS Work queue */ 12109 if (phba->sli4_hba.oas_wq != NULL) { 12110 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12111 phba->sli4_hba.oas_wq = NULL; 12112 } 12113 return 0; 12114 } 12115 12116 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12117 12118 static const struct pci_error_handlers lpfc_err_handler = { 12119 .error_detected = lpfc_io_error_detected, 12120 .slot_reset = lpfc_io_slot_reset, 12121 .resume = lpfc_io_resume, 12122 }; 12123 12124 static struct pci_driver lpfc_driver = { 12125 .name = LPFC_DRIVER_NAME, 12126 .id_table = lpfc_id_table, 12127 .probe = lpfc_pci_probe_one, 12128 .remove = lpfc_pci_remove_one, 12129 .shutdown = lpfc_pci_remove_one, 12130 .suspend = lpfc_pci_suspend_one, 12131 .resume = lpfc_pci_resume_one, 12132 .err_handler = &lpfc_err_handler, 12133 }; 12134 12135 static const struct file_operations lpfc_mgmt_fop = { 12136 .owner = THIS_MODULE, 12137 }; 12138 12139 static struct miscdevice lpfc_mgmt_dev = { 12140 .minor = MISC_DYNAMIC_MINOR, 12141 .name = "lpfcmgmt", 12142 .fops = &lpfc_mgmt_fop, 12143 }; 12144 12145 /** 12146 * lpfc_init - lpfc module initialization routine 12147 * 12148 * This routine is to be invoked when the lpfc module is loaded into the 12149 * kernel. The special kernel macro module_init() is used to indicate the 12150 * role of this routine to the kernel as lpfc module entry point. 12151 * 12152 * Return codes 12153 * 0 - successful 12154 * -ENOMEM - FC attach transport failed 12155 * all others - failed 12156 */ 12157 static int __init 12158 lpfc_init(void) 12159 { 12160 int error = 0; 12161 12162 printk(LPFC_MODULE_DESC "\n"); 12163 printk(LPFC_COPYRIGHT "\n"); 12164 12165 error = misc_register(&lpfc_mgmt_dev); 12166 if (error) 12167 printk(KERN_ERR "Could not register lpfcmgmt device, " 12168 "misc_register returned with status %d", error); 12169 12170 lpfc_transport_functions.vport_create = lpfc_vport_create; 12171 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12172 lpfc_transport_template = 12173 fc_attach_transport(&lpfc_transport_functions); 12174 if (lpfc_transport_template == NULL) 12175 return -ENOMEM; 12176 lpfc_vport_transport_template = 12177 fc_attach_transport(&lpfc_vport_transport_functions); 12178 if (lpfc_vport_transport_template == NULL) { 12179 fc_release_transport(lpfc_transport_template); 12180 return -ENOMEM; 12181 } 12182 12183 /* Initialize in case vector mapping is needed */ 12184 lpfc_used_cpu = NULL; 12185 lpfc_present_cpu = num_present_cpus(); 12186 12187 error = pci_register_driver(&lpfc_driver); 12188 if (error) { 12189 fc_release_transport(lpfc_transport_template); 12190 fc_release_transport(lpfc_vport_transport_template); 12191 } 12192 12193 return error; 12194 } 12195 12196 /** 12197 * lpfc_exit - lpfc module removal routine 12198 * 12199 * This routine is invoked when the lpfc module is removed from the kernel. 12200 * The special kernel macro module_exit() is used to indicate the role of 12201 * this routine to the kernel as lpfc module exit point. 12202 */ 12203 static void __exit 12204 lpfc_exit(void) 12205 { 12206 misc_deregister(&lpfc_mgmt_dev); 12207 pci_unregister_driver(&lpfc_driver); 12208 fc_release_transport(lpfc_transport_template); 12209 fc_release_transport(lpfc_vport_transport_template); 12210 if (_dump_buf_data) { 12211 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12212 "_dump_buf_data at 0x%p\n", 12213 (1L << _dump_buf_data_order), _dump_buf_data); 12214 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12215 } 12216 12217 if (_dump_buf_dif) { 12218 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12219 "_dump_buf_dif at 0x%p\n", 12220 (1L << _dump_buf_dif_order), _dump_buf_dif); 12221 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12222 } 12223 kfree(lpfc_used_cpu); 12224 idr_destroy(&lpfc_hba_index); 12225 } 12226 12227 module_init(lpfc_init); 12228 module_exit(lpfc_exit); 12229 MODULE_LICENSE("GPL"); 12230 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12231 MODULE_AUTHOR("Broadcom"); 12232 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12233