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_ctxbuf_post(phba, ctxp->ctxbuf); 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 struct lpfc_queue *qp; 1253 unsigned long time_elapsed; 1254 uint32_t tick_cqe, max_cqe, val; 1255 uint64_t tot, data1, data2, data3; 1256 struct lpfc_register reg_data; 1257 void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; 1258 1259 vports = lpfc_create_vport_work_array(phba); 1260 if (vports != NULL) 1261 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 1262 lpfc_rcv_seq_check_edtov(vports[i]); 1263 lpfc_fdmi_num_disc_check(vports[i]); 1264 } 1265 lpfc_destroy_vport_work_array(phba, vports); 1266 1267 if ((phba->link_state == LPFC_HBA_ERROR) || 1268 (phba->pport->load_flag & FC_UNLOADING) || 1269 (phba->pport->fc_flag & FC_OFFLINE_MODE)) 1270 return; 1271 1272 if (phba->cfg_auto_imax) { 1273 if (!phba->last_eqdelay_time) { 1274 phba->last_eqdelay_time = jiffies; 1275 goto skip_eqdelay; 1276 } 1277 time_elapsed = jiffies - phba->last_eqdelay_time; 1278 phba->last_eqdelay_time = jiffies; 1279 1280 tot = 0xffff; 1281 /* Check outstanding IO count */ 1282 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 1283 if (phba->nvmet_support) { 1284 spin_lock(&phba->sli4_hba.nvmet_ctx_get_lock); 1285 spin_lock(&phba->sli4_hba.nvmet_ctx_put_lock); 1286 tot = phba->sli4_hba.nvmet_xri_cnt - 1287 (phba->sli4_hba.nvmet_ctx_get_cnt + 1288 phba->sli4_hba.nvmet_ctx_put_cnt); 1289 spin_unlock(&phba->sli4_hba.nvmet_ctx_put_lock); 1290 spin_unlock(&phba->sli4_hba.nvmet_ctx_get_lock); 1291 } else { 1292 tot = atomic_read(&phba->fc4NvmeIoCmpls); 1293 data1 = atomic_read( 1294 &phba->fc4NvmeInputRequests); 1295 data2 = atomic_read( 1296 &phba->fc4NvmeOutputRequests); 1297 data3 = atomic_read( 1298 &phba->fc4NvmeControlRequests); 1299 tot = (data1 + data2 + data3) - tot; 1300 } 1301 } 1302 1303 /* Interrupts per sec per EQ */ 1304 val = phba->cfg_fcp_imax / phba->io_channel_irqs; 1305 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */ 1306 1307 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */ 1308 max_cqe = time_elapsed * tick_cqe; 1309 1310 for (i = 0; i < phba->io_channel_irqs; i++) { 1311 /* Fast-path EQ */ 1312 qp = phba->sli4_hba.hba_eq[i]; 1313 if (!qp) 1314 continue; 1315 1316 /* Use no EQ delay if we don't have many outstanding 1317 * IOs, or if we are only processing 1 CQE/ISR or less. 1318 * Otherwise, assume we can process up to lpfc_fcp_imax 1319 * interrupts per HBA. 1320 */ 1321 if (tot < LPFC_NODELAY_MAX_IO || 1322 qp->EQ_cqe_cnt <= max_cqe) 1323 val = 0; 1324 else 1325 val = phba->cfg_fcp_imax; 1326 1327 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) { 1328 /* Use EQ Delay Register method */ 1329 1330 /* Convert for EQ Delay register */ 1331 if (val) { 1332 /* First, interrupts per sec per EQ */ 1333 val = phba->cfg_fcp_imax / 1334 phba->io_channel_irqs; 1335 1336 /* us delay between each interrupt */ 1337 val = LPFC_SEC_TO_USEC / val; 1338 } 1339 if (val != qp->q_mode) { 1340 reg_data.word0 = 0; 1341 bf_set(lpfc_sliport_eqdelay_id, 1342 ®_data, qp->queue_id); 1343 bf_set(lpfc_sliport_eqdelay_delay, 1344 ®_data, val); 1345 writel(reg_data.word0, eqdreg); 1346 } 1347 } else { 1348 /* Use mbox command method */ 1349 if (val != qp->q_mode) 1350 lpfc_modify_hba_eq_delay(phba, i, 1351 1, val); 1352 } 1353 1354 /* 1355 * val is cfg_fcp_imax or 0 for mbox delay or us delay 1356 * between interrupts for EQDR. 1357 */ 1358 qp->q_mode = val; 1359 qp->EQ_cqe_cnt = 0; 1360 } 1361 } 1362 1363 skip_eqdelay: 1364 spin_lock_irq(&phba->pport->work_port_lock); 1365 1366 if (time_after(phba->last_completion_time + 1367 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), 1368 jiffies)) { 1369 spin_unlock_irq(&phba->pport->work_port_lock); 1370 if (!phba->hb_outstanding) 1371 mod_timer(&phba->hb_tmofunc, 1372 jiffies + 1373 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1374 else 1375 mod_timer(&phba->hb_tmofunc, 1376 jiffies + 1377 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1378 return; 1379 } 1380 spin_unlock_irq(&phba->pport->work_port_lock); 1381 1382 if (phba->elsbuf_cnt && 1383 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { 1384 spin_lock_irq(&phba->hbalock); 1385 list_splice_init(&phba->elsbuf, &completions); 1386 phba->elsbuf_cnt = 0; 1387 phba->elsbuf_prev_cnt = 0; 1388 spin_unlock_irq(&phba->hbalock); 1389 1390 while (!list_empty(&completions)) { 1391 list_remove_head(&completions, buf_ptr, 1392 struct lpfc_dmabuf, list); 1393 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); 1394 kfree(buf_ptr); 1395 } 1396 } 1397 phba->elsbuf_prev_cnt = phba->elsbuf_cnt; 1398 1399 /* If there is no heart beat outstanding, issue a heartbeat command */ 1400 if (phba->cfg_enable_hba_heartbeat) { 1401 if (!phba->hb_outstanding) { 1402 if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && 1403 (list_empty(&psli->mboxq))) { 1404 pmboxq = mempool_alloc(phba->mbox_mem_pool, 1405 GFP_KERNEL); 1406 if (!pmboxq) { 1407 mod_timer(&phba->hb_tmofunc, 1408 jiffies + 1409 msecs_to_jiffies(1000 * 1410 LPFC_HB_MBOX_INTERVAL)); 1411 return; 1412 } 1413 1414 lpfc_heart_beat(phba, pmboxq); 1415 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; 1416 pmboxq->vport = phba->pport; 1417 retval = lpfc_sli_issue_mbox(phba, pmboxq, 1418 MBX_NOWAIT); 1419 1420 if (retval != MBX_BUSY && 1421 retval != MBX_SUCCESS) { 1422 mempool_free(pmboxq, 1423 phba->mbox_mem_pool); 1424 mod_timer(&phba->hb_tmofunc, 1425 jiffies + 1426 msecs_to_jiffies(1000 * 1427 LPFC_HB_MBOX_INTERVAL)); 1428 return; 1429 } 1430 phba->skipped_hb = 0; 1431 phba->hb_outstanding = 1; 1432 } else if (time_before_eq(phba->last_completion_time, 1433 phba->skipped_hb)) { 1434 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 1435 "2857 Last completion time not " 1436 " updated in %d ms\n", 1437 jiffies_to_msecs(jiffies 1438 - phba->last_completion_time)); 1439 } else 1440 phba->skipped_hb = jiffies; 1441 1442 mod_timer(&phba->hb_tmofunc, 1443 jiffies + 1444 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1445 return; 1446 } else { 1447 /* 1448 * If heart beat timeout called with hb_outstanding set 1449 * we need to give the hb mailbox cmd a chance to 1450 * complete or TMO. 1451 */ 1452 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1453 "0459 Adapter heartbeat still out" 1454 "standing:last compl time was %d ms.\n", 1455 jiffies_to_msecs(jiffies 1456 - phba->last_completion_time)); 1457 mod_timer(&phba->hb_tmofunc, 1458 jiffies + 1459 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); 1460 } 1461 } else { 1462 mod_timer(&phba->hb_tmofunc, 1463 jiffies + 1464 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); 1465 } 1466 } 1467 1468 /** 1469 * lpfc_offline_eratt - Bring lpfc offline on hardware error attention 1470 * @phba: pointer to lpfc hba data structure. 1471 * 1472 * This routine is called to bring the HBA offline when HBA hardware error 1473 * other than Port Error 6 has been detected. 1474 **/ 1475 static void 1476 lpfc_offline_eratt(struct lpfc_hba *phba) 1477 { 1478 struct lpfc_sli *psli = &phba->sli; 1479 1480 spin_lock_irq(&phba->hbalock); 1481 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1482 spin_unlock_irq(&phba->hbalock); 1483 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1484 1485 lpfc_offline(phba); 1486 lpfc_reset_barrier(phba); 1487 spin_lock_irq(&phba->hbalock); 1488 lpfc_sli_brdreset(phba); 1489 spin_unlock_irq(&phba->hbalock); 1490 lpfc_hba_down_post(phba); 1491 lpfc_sli_brdready(phba, HS_MBRDY); 1492 lpfc_unblock_mgmt_io(phba); 1493 phba->link_state = LPFC_HBA_ERROR; 1494 return; 1495 } 1496 1497 /** 1498 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention 1499 * @phba: pointer to lpfc hba data structure. 1500 * 1501 * This routine is called to bring a SLI4 HBA offline when HBA hardware error 1502 * other than Port Error 6 has been detected. 1503 **/ 1504 void 1505 lpfc_sli4_offline_eratt(struct lpfc_hba *phba) 1506 { 1507 spin_lock_irq(&phba->hbalock); 1508 phba->link_state = LPFC_HBA_ERROR; 1509 spin_unlock_irq(&phba->hbalock); 1510 1511 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1512 lpfc_offline(phba); 1513 lpfc_hba_down_post(phba); 1514 lpfc_unblock_mgmt_io(phba); 1515 } 1516 1517 /** 1518 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 1519 * @phba: pointer to lpfc hba data structure. 1520 * 1521 * This routine is invoked to handle the deferred HBA hardware error 1522 * conditions. This type of error is indicated by HBA by setting ER1 1523 * and another ER bit in the host status register. The driver will 1524 * wait until the ER1 bit clears before handling the error condition. 1525 **/ 1526 static void 1527 lpfc_handle_deferred_eratt(struct lpfc_hba *phba) 1528 { 1529 uint32_t old_host_status = phba->work_hs; 1530 struct lpfc_sli *psli = &phba->sli; 1531 1532 /* If the pci channel is offline, ignore possible errors, 1533 * since we cannot communicate with the pci card anyway. 1534 */ 1535 if (pci_channel_offline(phba->pcidev)) { 1536 spin_lock_irq(&phba->hbalock); 1537 phba->hba_flag &= ~DEFER_ERATT; 1538 spin_unlock_irq(&phba->hbalock); 1539 return; 1540 } 1541 1542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1543 "0479 Deferred Adapter Hardware Error " 1544 "Data: x%x x%x x%x\n", 1545 phba->work_hs, 1546 phba->work_status[0], phba->work_status[1]); 1547 1548 spin_lock_irq(&phba->hbalock); 1549 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1550 spin_unlock_irq(&phba->hbalock); 1551 1552 1553 /* 1554 * Firmware stops when it triggred erratt. That could cause the I/Os 1555 * dropped by the firmware. Error iocb (I/O) on txcmplq and let the 1556 * SCSI layer retry it after re-establishing link. 1557 */ 1558 lpfc_sli_abort_fcp_rings(phba); 1559 1560 /* 1561 * There was a firmware error. Take the hba offline and then 1562 * attempt to restart it. 1563 */ 1564 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 1565 lpfc_offline(phba); 1566 1567 /* Wait for the ER1 bit to clear.*/ 1568 while (phba->work_hs & HS_FFER1) { 1569 msleep(100); 1570 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { 1571 phba->work_hs = UNPLUG_ERR ; 1572 break; 1573 } 1574 /* If driver is unloading let the worker thread continue */ 1575 if (phba->pport->load_flag & FC_UNLOADING) { 1576 phba->work_hs = 0; 1577 break; 1578 } 1579 } 1580 1581 /* 1582 * This is to ptrotect against a race condition in which 1583 * first write to the host attention register clear the 1584 * host status register. 1585 */ 1586 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1587 phba->work_hs = old_host_status & ~HS_FFER1; 1588 1589 spin_lock_irq(&phba->hbalock); 1590 phba->hba_flag &= ~DEFER_ERATT; 1591 spin_unlock_irq(&phba->hbalock); 1592 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1593 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1594 } 1595 1596 static void 1597 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) 1598 { 1599 struct lpfc_board_event_header board_event; 1600 struct Scsi_Host *shost; 1601 1602 board_event.event_type = FC_REG_BOARD_EVENT; 1603 board_event.subcategory = LPFC_EVENT_PORTINTERR; 1604 shost = lpfc_shost_from_vport(phba->pport); 1605 fc_host_post_vendor_event(shost, fc_get_event_number(), 1606 sizeof(board_event), 1607 (char *) &board_event, 1608 LPFC_NL_VENDOR_ID); 1609 } 1610 1611 /** 1612 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler 1613 * @phba: pointer to lpfc hba data structure. 1614 * 1615 * This routine is invoked to handle the following HBA hardware error 1616 * conditions: 1617 * 1 - HBA error attention interrupt 1618 * 2 - DMA ring index out of range 1619 * 3 - Mailbox command came back as unknown 1620 **/ 1621 static void 1622 lpfc_handle_eratt_s3(struct lpfc_hba *phba) 1623 { 1624 struct lpfc_vport *vport = phba->pport; 1625 struct lpfc_sli *psli = &phba->sli; 1626 uint32_t event_data; 1627 unsigned long temperature; 1628 struct temp_event temp_event_data; 1629 struct Scsi_Host *shost; 1630 1631 /* If the pci channel is offline, ignore possible errors, 1632 * since we cannot communicate with the pci card anyway. 1633 */ 1634 if (pci_channel_offline(phba->pcidev)) { 1635 spin_lock_irq(&phba->hbalock); 1636 phba->hba_flag &= ~DEFER_ERATT; 1637 spin_unlock_irq(&phba->hbalock); 1638 return; 1639 } 1640 1641 /* If resets are disabled then leave the HBA alone and return */ 1642 if (!phba->cfg_enable_hba_reset) 1643 return; 1644 1645 /* Send an internal error event to mgmt application */ 1646 lpfc_board_errevt_to_mgmt(phba); 1647 1648 if (phba->hba_flag & DEFER_ERATT) 1649 lpfc_handle_deferred_eratt(phba); 1650 1651 if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { 1652 if (phba->work_hs & HS_FFER6) 1653 /* Re-establishing Link */ 1654 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1655 "1301 Re-establishing Link " 1656 "Data: x%x x%x x%x\n", 1657 phba->work_hs, phba->work_status[0], 1658 phba->work_status[1]); 1659 if (phba->work_hs & HS_FFER8) 1660 /* Device Zeroization */ 1661 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 1662 "2861 Host Authentication device " 1663 "zeroization Data:x%x x%x x%x\n", 1664 phba->work_hs, phba->work_status[0], 1665 phba->work_status[1]); 1666 1667 spin_lock_irq(&phba->hbalock); 1668 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 1669 spin_unlock_irq(&phba->hbalock); 1670 1671 /* 1672 * Firmware stops when it triggled erratt with HS_FFER6. 1673 * That could cause the I/Os dropped by the firmware. 1674 * Error iocb (I/O) on txcmplq and let the SCSI layer 1675 * retry it after re-establishing link. 1676 */ 1677 lpfc_sli_abort_fcp_rings(phba); 1678 1679 /* 1680 * There was a firmware error. Take the hba offline and then 1681 * attempt to restart it. 1682 */ 1683 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 1684 lpfc_offline(phba); 1685 lpfc_sli_brdrestart(phba); 1686 if (lpfc_online(phba) == 0) { /* Initialize the HBA */ 1687 lpfc_unblock_mgmt_io(phba); 1688 return; 1689 } 1690 lpfc_unblock_mgmt_io(phba); 1691 } else if (phba->work_hs & HS_CRIT_TEMP) { 1692 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); 1693 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1694 temp_event_data.event_code = LPFC_CRIT_TEMP; 1695 temp_event_data.data = (uint32_t)temperature; 1696 1697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1698 "0406 Adapter maximum temperature exceeded " 1699 "(%ld), taking this port offline " 1700 "Data: x%x x%x x%x\n", 1701 temperature, phba->work_hs, 1702 phba->work_status[0], phba->work_status[1]); 1703 1704 shost = lpfc_shost_from_vport(phba->pport); 1705 fc_host_post_vendor_event(shost, fc_get_event_number(), 1706 sizeof(temp_event_data), 1707 (char *) &temp_event_data, 1708 SCSI_NL_VID_TYPE_PCI 1709 | PCI_VENDOR_ID_EMULEX); 1710 1711 spin_lock_irq(&phba->hbalock); 1712 phba->over_temp_state = HBA_OVER_TEMP; 1713 spin_unlock_irq(&phba->hbalock); 1714 lpfc_offline_eratt(phba); 1715 1716 } else { 1717 /* The if clause above forces this code path when the status 1718 * failure is a value other than FFER6. Do not call the offline 1719 * twice. This is the adapter hardware error path. 1720 */ 1721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1722 "0457 Adapter Hardware Error " 1723 "Data: x%x x%x x%x\n", 1724 phba->work_hs, 1725 phba->work_status[0], phba->work_status[1]); 1726 1727 event_data = FC_REG_DUMP_EVENT; 1728 shost = lpfc_shost_from_vport(vport); 1729 fc_host_post_vendor_event(shost, fc_get_event_number(), 1730 sizeof(event_data), (char *) &event_data, 1731 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1732 1733 lpfc_offline_eratt(phba); 1734 } 1735 return; 1736 } 1737 1738 /** 1739 * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg 1740 * @phba: pointer to lpfc hba data structure. 1741 * @mbx_action: flag for mailbox shutdown action. 1742 * 1743 * This routine is invoked to perform an SLI4 port PCI function reset in 1744 * response to port status register polling attention. It waits for port 1745 * status register (ERR, RDY, RN) bits before proceeding with function reset. 1746 * During this process, interrupt vectors are freed and later requested 1747 * for handling possible port resource change. 1748 **/ 1749 static int 1750 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, 1751 bool en_rn_msg) 1752 { 1753 int rc; 1754 uint32_t intr_mode; 1755 1756 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 1757 LPFC_SLI_INTF_IF_TYPE_2) { 1758 /* 1759 * On error status condition, driver need to wait for port 1760 * ready before performing reset. 1761 */ 1762 rc = lpfc_sli4_pdev_status_reg_wait(phba); 1763 if (rc) 1764 return rc; 1765 } 1766 1767 /* need reset: attempt for port recovery */ 1768 if (en_rn_msg) 1769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1770 "2887 Reset Needed: Attempting Port " 1771 "Recovery...\n"); 1772 lpfc_offline_prep(phba, mbx_action); 1773 lpfc_offline(phba); 1774 /* release interrupt for possible resource change */ 1775 lpfc_sli4_disable_intr(phba); 1776 lpfc_sli_brdrestart(phba); 1777 /* request and enable interrupt */ 1778 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 1779 if (intr_mode == LPFC_INTR_ERROR) { 1780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1781 "3175 Failed to enable interrupt\n"); 1782 return -EIO; 1783 } 1784 phba->intr_mode = intr_mode; 1785 rc = lpfc_online(phba); 1786 if (rc == 0) 1787 lpfc_unblock_mgmt_io(phba); 1788 1789 return rc; 1790 } 1791 1792 /** 1793 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler 1794 * @phba: pointer to lpfc hba data structure. 1795 * 1796 * This routine is invoked to handle the SLI4 HBA hardware error attention 1797 * conditions. 1798 **/ 1799 static void 1800 lpfc_handle_eratt_s4(struct lpfc_hba *phba) 1801 { 1802 struct lpfc_vport *vport = phba->pport; 1803 uint32_t event_data; 1804 struct Scsi_Host *shost; 1805 uint32_t if_type; 1806 struct lpfc_register portstat_reg = {0}; 1807 uint32_t reg_err1, reg_err2; 1808 uint32_t uerrlo_reg, uemasklo_reg; 1809 uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; 1810 bool en_rn_msg = true; 1811 struct temp_event temp_event_data; 1812 struct lpfc_register portsmphr_reg; 1813 int rc, i; 1814 1815 /* If the pci channel is offline, ignore possible errors, since 1816 * we cannot communicate with the pci card anyway. 1817 */ 1818 if (pci_channel_offline(phba->pcidev)) 1819 return; 1820 1821 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 1822 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 1823 switch (if_type) { 1824 case LPFC_SLI_INTF_IF_TYPE_0: 1825 pci_rd_rc1 = lpfc_readl( 1826 phba->sli4_hba.u.if_type0.UERRLOregaddr, 1827 &uerrlo_reg); 1828 pci_rd_rc2 = lpfc_readl( 1829 phba->sli4_hba.u.if_type0.UEMASKLOregaddr, 1830 &uemasklo_reg); 1831 /* consider PCI bus read error as pci_channel_offline */ 1832 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) 1833 return; 1834 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { 1835 lpfc_sli4_offline_eratt(phba); 1836 return; 1837 } 1838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1839 "7623 Checking UE recoverable"); 1840 1841 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { 1842 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1843 &portsmphr_reg.word0)) 1844 continue; 1845 1846 smphr_port_status = bf_get(lpfc_port_smphr_port_status, 1847 &portsmphr_reg); 1848 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1849 LPFC_PORT_SEM_UE_RECOVERABLE) 1850 break; 1851 /*Sleep for 1Sec, before checking SEMAPHORE */ 1852 msleep(1000); 1853 } 1854 1855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1856 "4827 smphr_port_status x%x : Waited %dSec", 1857 smphr_port_status, i); 1858 1859 /* Recoverable UE, reset the HBA device */ 1860 if ((smphr_port_status & LPFC_PORT_SEM_MASK) == 1861 LPFC_PORT_SEM_UE_RECOVERABLE) { 1862 for (i = 0; i < 20; i++) { 1863 msleep(1000); 1864 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 1865 &portsmphr_reg.word0) && 1866 (LPFC_POST_STAGE_PORT_READY == 1867 bf_get(lpfc_port_smphr_port_status, 1868 &portsmphr_reg))) { 1869 rc = lpfc_sli4_port_sta_fn_reset(phba, 1870 LPFC_MBX_NO_WAIT, en_rn_msg); 1871 if (rc == 0) 1872 return; 1873 lpfc_printf_log(phba, 1874 KERN_ERR, LOG_INIT, 1875 "4215 Failed to recover UE"); 1876 break; 1877 } 1878 } 1879 } 1880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1881 "7624 Firmware not ready: Failing UE recovery," 1882 " waited %dSec", i); 1883 lpfc_sli4_offline_eratt(phba); 1884 break; 1885 1886 case LPFC_SLI_INTF_IF_TYPE_2: 1887 pci_rd_rc1 = lpfc_readl( 1888 phba->sli4_hba.u.if_type2.STATUSregaddr, 1889 &portstat_reg.word0); 1890 /* consider PCI bus read error as pci_channel_offline */ 1891 if (pci_rd_rc1 == -EIO) { 1892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1893 "3151 PCI bus read access failure: x%x\n", 1894 readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); 1895 return; 1896 } 1897 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); 1898 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); 1899 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { 1900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1901 "2889 Port Overtemperature event, " 1902 "taking port offline Data: x%x x%x\n", 1903 reg_err1, reg_err2); 1904 1905 phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 1906 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 1907 temp_event_data.event_code = LPFC_CRIT_TEMP; 1908 temp_event_data.data = 0xFFFFFFFF; 1909 1910 shost = lpfc_shost_from_vport(phba->pport); 1911 fc_host_post_vendor_event(shost, fc_get_event_number(), 1912 sizeof(temp_event_data), 1913 (char *)&temp_event_data, 1914 SCSI_NL_VID_TYPE_PCI 1915 | PCI_VENDOR_ID_EMULEX); 1916 1917 spin_lock_irq(&phba->hbalock); 1918 phba->over_temp_state = HBA_OVER_TEMP; 1919 spin_unlock_irq(&phba->hbalock); 1920 lpfc_sli4_offline_eratt(phba); 1921 return; 1922 } 1923 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1924 reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { 1925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1926 "3143 Port Down: Firmware Update " 1927 "Detected\n"); 1928 en_rn_msg = false; 1929 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1930 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1931 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1932 "3144 Port Down: Debug Dump\n"); 1933 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1934 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) 1935 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1936 "3145 Port Down: Provisioning\n"); 1937 1938 /* If resets are disabled then leave the HBA alone and return */ 1939 if (!phba->cfg_enable_hba_reset) 1940 return; 1941 1942 /* Check port status register for function reset */ 1943 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, 1944 en_rn_msg); 1945 if (rc == 0) { 1946 /* don't report event on forced debug dump */ 1947 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && 1948 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) 1949 return; 1950 else 1951 break; 1952 } 1953 /* fall through for not able to recover */ 1954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 1955 "3152 Unrecoverable error, bring the port " 1956 "offline\n"); 1957 lpfc_sli4_offline_eratt(phba); 1958 break; 1959 case LPFC_SLI_INTF_IF_TYPE_1: 1960 default: 1961 break; 1962 } 1963 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 1964 "3123 Report dump event to upper layer\n"); 1965 /* Send an internal error event to mgmt application */ 1966 lpfc_board_errevt_to_mgmt(phba); 1967 1968 event_data = FC_REG_DUMP_EVENT; 1969 shost = lpfc_shost_from_vport(vport); 1970 fc_host_post_vendor_event(shost, fc_get_event_number(), 1971 sizeof(event_data), (char *) &event_data, 1972 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); 1973 } 1974 1975 /** 1976 * lpfc_handle_eratt - Wrapper func for handling hba error attention 1977 * @phba: pointer to lpfc HBA data structure. 1978 * 1979 * This routine wraps the actual SLI3 or SLI4 hba error attention handling 1980 * routine from the API jump table function pointer from the lpfc_hba struct. 1981 * 1982 * Return codes 1983 * 0 - success. 1984 * Any other value - error. 1985 **/ 1986 void 1987 lpfc_handle_eratt(struct lpfc_hba *phba) 1988 { 1989 (*phba->lpfc_handle_eratt)(phba); 1990 } 1991 1992 /** 1993 * lpfc_handle_latt - The HBA link event handler 1994 * @phba: pointer to lpfc hba data structure. 1995 * 1996 * This routine is invoked from the worker thread to handle a HBA host 1997 * attention link event. SLI3 only. 1998 **/ 1999 void 2000 lpfc_handle_latt(struct lpfc_hba *phba) 2001 { 2002 struct lpfc_vport *vport = phba->pport; 2003 struct lpfc_sli *psli = &phba->sli; 2004 LPFC_MBOXQ_t *pmb; 2005 volatile uint32_t control; 2006 struct lpfc_dmabuf *mp; 2007 int rc = 0; 2008 2009 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 2010 if (!pmb) { 2011 rc = 1; 2012 goto lpfc_handle_latt_err_exit; 2013 } 2014 2015 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 2016 if (!mp) { 2017 rc = 2; 2018 goto lpfc_handle_latt_free_pmb; 2019 } 2020 2021 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 2022 if (!mp->virt) { 2023 rc = 3; 2024 goto lpfc_handle_latt_free_mp; 2025 } 2026 2027 /* Cleanup any outstanding ELS commands */ 2028 lpfc_els_flush_all_cmd(phba); 2029 2030 psli->slistat.link_event++; 2031 lpfc_read_topology(phba, pmb, mp); 2032 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 2033 pmb->vport = vport; 2034 /* Block ELS IOCBs until we have processed this mbox command */ 2035 phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; 2036 rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); 2037 if (rc == MBX_NOT_FINISHED) { 2038 rc = 4; 2039 goto lpfc_handle_latt_free_mbuf; 2040 } 2041 2042 /* Clear Link Attention in HA REG */ 2043 spin_lock_irq(&phba->hbalock); 2044 writel(HA_LATT, phba->HAregaddr); 2045 readl(phba->HAregaddr); /* flush */ 2046 spin_unlock_irq(&phba->hbalock); 2047 2048 return; 2049 2050 lpfc_handle_latt_free_mbuf: 2051 phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; 2052 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2053 lpfc_handle_latt_free_mp: 2054 kfree(mp); 2055 lpfc_handle_latt_free_pmb: 2056 mempool_free(pmb, phba->mbox_mem_pool); 2057 lpfc_handle_latt_err_exit: 2058 /* Enable Link attention interrupts */ 2059 spin_lock_irq(&phba->hbalock); 2060 psli->sli_flag |= LPFC_PROCESS_LA; 2061 control = readl(phba->HCregaddr); 2062 control |= HC_LAINT_ENA; 2063 writel(control, phba->HCregaddr); 2064 readl(phba->HCregaddr); /* flush */ 2065 2066 /* Clear Link Attention in HA REG */ 2067 writel(HA_LATT, phba->HAregaddr); 2068 readl(phba->HAregaddr); /* flush */ 2069 spin_unlock_irq(&phba->hbalock); 2070 lpfc_linkdown(phba); 2071 phba->link_state = LPFC_HBA_ERROR; 2072 2073 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 2074 "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); 2075 2076 return; 2077 } 2078 2079 /** 2080 * lpfc_parse_vpd - Parse VPD (Vital Product Data) 2081 * @phba: pointer to lpfc hba data structure. 2082 * @vpd: pointer to the vital product data. 2083 * @len: length of the vital product data in bytes. 2084 * 2085 * This routine parses the Vital Product Data (VPD). The VPD is treated as 2086 * an array of characters. In this routine, the ModelName, ProgramType, and 2087 * ModelDesc, etc. fields of the phba data structure will be populated. 2088 * 2089 * Return codes 2090 * 0 - pointer to the VPD passed in is NULL 2091 * 1 - success 2092 **/ 2093 int 2094 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 2095 { 2096 uint8_t lenlo, lenhi; 2097 int Length; 2098 int i, j; 2099 int finished = 0; 2100 int index = 0; 2101 2102 if (!vpd) 2103 return 0; 2104 2105 /* Vital Product */ 2106 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2107 "0455 Vital Product Data: x%x x%x x%x x%x\n", 2108 (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], 2109 (uint32_t) vpd[3]); 2110 while (!finished && (index < (len - 4))) { 2111 switch (vpd[index]) { 2112 case 0x82: 2113 case 0x91: 2114 index += 1; 2115 lenlo = vpd[index]; 2116 index += 1; 2117 lenhi = vpd[index]; 2118 index += 1; 2119 i = ((((unsigned short)lenhi) << 8) + lenlo); 2120 index += i; 2121 break; 2122 case 0x90: 2123 index += 1; 2124 lenlo = vpd[index]; 2125 index += 1; 2126 lenhi = vpd[index]; 2127 index += 1; 2128 Length = ((((unsigned short)lenhi) << 8) + lenlo); 2129 if (Length > len - index) 2130 Length = len - index; 2131 while (Length > 0) { 2132 /* Look for Serial Number */ 2133 if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { 2134 index += 2; 2135 i = vpd[index]; 2136 index += 1; 2137 j = 0; 2138 Length -= (3+i); 2139 while(i--) { 2140 phba->SerialNumber[j++] = vpd[index++]; 2141 if (j == 31) 2142 break; 2143 } 2144 phba->SerialNumber[j] = 0; 2145 continue; 2146 } 2147 else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { 2148 phba->vpd_flag |= VPD_MODEL_DESC; 2149 index += 2; 2150 i = vpd[index]; 2151 index += 1; 2152 j = 0; 2153 Length -= (3+i); 2154 while(i--) { 2155 phba->ModelDesc[j++] = vpd[index++]; 2156 if (j == 255) 2157 break; 2158 } 2159 phba->ModelDesc[j] = 0; 2160 continue; 2161 } 2162 else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { 2163 phba->vpd_flag |= VPD_MODEL_NAME; 2164 index += 2; 2165 i = vpd[index]; 2166 index += 1; 2167 j = 0; 2168 Length -= (3+i); 2169 while(i--) { 2170 phba->ModelName[j++] = vpd[index++]; 2171 if (j == 79) 2172 break; 2173 } 2174 phba->ModelName[j] = 0; 2175 continue; 2176 } 2177 else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { 2178 phba->vpd_flag |= VPD_PROGRAM_TYPE; 2179 index += 2; 2180 i = vpd[index]; 2181 index += 1; 2182 j = 0; 2183 Length -= (3+i); 2184 while(i--) { 2185 phba->ProgramType[j++] = vpd[index++]; 2186 if (j == 255) 2187 break; 2188 } 2189 phba->ProgramType[j] = 0; 2190 continue; 2191 } 2192 else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { 2193 phba->vpd_flag |= VPD_PORT; 2194 index += 2; 2195 i = vpd[index]; 2196 index += 1; 2197 j = 0; 2198 Length -= (3+i); 2199 while(i--) { 2200 if ((phba->sli_rev == LPFC_SLI_REV4) && 2201 (phba->sli4_hba.pport_name_sta == 2202 LPFC_SLI4_PPNAME_GET)) { 2203 j++; 2204 index++; 2205 } else 2206 phba->Port[j++] = vpd[index++]; 2207 if (j == 19) 2208 break; 2209 } 2210 if ((phba->sli_rev != LPFC_SLI_REV4) || 2211 (phba->sli4_hba.pport_name_sta == 2212 LPFC_SLI4_PPNAME_NON)) 2213 phba->Port[j] = 0; 2214 continue; 2215 } 2216 else { 2217 index += 2; 2218 i = vpd[index]; 2219 index += 1; 2220 index += i; 2221 Length -= (3 + i); 2222 } 2223 } 2224 finished = 0; 2225 break; 2226 case 0x78: 2227 finished = 1; 2228 break; 2229 default: 2230 index ++; 2231 break; 2232 } 2233 } 2234 2235 return(1); 2236 } 2237 2238 /** 2239 * lpfc_get_hba_model_desc - Retrieve HBA device model name and description 2240 * @phba: pointer to lpfc hba data structure. 2241 * @mdp: pointer to the data structure to hold the derived model name. 2242 * @descp: pointer to the data structure to hold the derived description. 2243 * 2244 * This routine retrieves HBA's description based on its registered PCI device 2245 * ID. The @descp passed into this function points to an array of 256 chars. It 2246 * shall be returned with the model name, maximum speed, and the host bus type. 2247 * The @mdp passed into this function points to an array of 80 chars. When the 2248 * function returns, the @mdp will be filled with the model name. 2249 **/ 2250 static void 2251 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 2252 { 2253 lpfc_vpd_t *vp; 2254 uint16_t dev_id = phba->pcidev->device; 2255 int max_speed; 2256 int GE = 0; 2257 int oneConnect = 0; /* default is not a oneConnect */ 2258 struct { 2259 char *name; 2260 char *bus; 2261 char *function; 2262 } m = {"<Unknown>", "", ""}; 2263 2264 if (mdp && mdp[0] != '\0' 2265 && descp && descp[0] != '\0') 2266 return; 2267 2268 if (phba->lmt & LMT_32Gb) 2269 max_speed = 32; 2270 else if (phba->lmt & LMT_16Gb) 2271 max_speed = 16; 2272 else if (phba->lmt & LMT_10Gb) 2273 max_speed = 10; 2274 else if (phba->lmt & LMT_8Gb) 2275 max_speed = 8; 2276 else if (phba->lmt & LMT_4Gb) 2277 max_speed = 4; 2278 else if (phba->lmt & LMT_2Gb) 2279 max_speed = 2; 2280 else if (phba->lmt & LMT_1Gb) 2281 max_speed = 1; 2282 else 2283 max_speed = 0; 2284 2285 vp = &phba->vpd; 2286 2287 switch (dev_id) { 2288 case PCI_DEVICE_ID_FIREFLY: 2289 m = (typeof(m)){"LP6000", "PCI", 2290 "Obsolete, Unsupported Fibre Channel Adapter"}; 2291 break; 2292 case PCI_DEVICE_ID_SUPERFLY: 2293 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) 2294 m = (typeof(m)){"LP7000", "PCI", ""}; 2295 else 2296 m = (typeof(m)){"LP7000E", "PCI", ""}; 2297 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2298 break; 2299 case PCI_DEVICE_ID_DRAGONFLY: 2300 m = (typeof(m)){"LP8000", "PCI", 2301 "Obsolete, Unsupported Fibre Channel Adapter"}; 2302 break; 2303 case PCI_DEVICE_ID_CENTAUR: 2304 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) 2305 m = (typeof(m)){"LP9002", "PCI", ""}; 2306 else 2307 m = (typeof(m)){"LP9000", "PCI", ""}; 2308 m.function = "Obsolete, Unsupported Fibre Channel Adapter"; 2309 break; 2310 case PCI_DEVICE_ID_RFLY: 2311 m = (typeof(m)){"LP952", "PCI", 2312 "Obsolete, Unsupported Fibre Channel Adapter"}; 2313 break; 2314 case PCI_DEVICE_ID_PEGASUS: 2315 m = (typeof(m)){"LP9802", "PCI-X", 2316 "Obsolete, Unsupported Fibre Channel Adapter"}; 2317 break; 2318 case PCI_DEVICE_ID_THOR: 2319 m = (typeof(m)){"LP10000", "PCI-X", 2320 "Obsolete, Unsupported Fibre Channel Adapter"}; 2321 break; 2322 case PCI_DEVICE_ID_VIPER: 2323 m = (typeof(m)){"LPX1000", "PCI-X", 2324 "Obsolete, Unsupported Fibre Channel Adapter"}; 2325 break; 2326 case PCI_DEVICE_ID_PFLY: 2327 m = (typeof(m)){"LP982", "PCI-X", 2328 "Obsolete, Unsupported Fibre Channel Adapter"}; 2329 break; 2330 case PCI_DEVICE_ID_TFLY: 2331 m = (typeof(m)){"LP1050", "PCI-X", 2332 "Obsolete, Unsupported Fibre Channel Adapter"}; 2333 break; 2334 case PCI_DEVICE_ID_HELIOS: 2335 m = (typeof(m)){"LP11000", "PCI-X2", 2336 "Obsolete, Unsupported Fibre Channel Adapter"}; 2337 break; 2338 case PCI_DEVICE_ID_HELIOS_SCSP: 2339 m = (typeof(m)){"LP11000-SP", "PCI-X2", 2340 "Obsolete, Unsupported Fibre Channel Adapter"}; 2341 break; 2342 case PCI_DEVICE_ID_HELIOS_DCSP: 2343 m = (typeof(m)){"LP11002-SP", "PCI-X2", 2344 "Obsolete, Unsupported Fibre Channel Adapter"}; 2345 break; 2346 case PCI_DEVICE_ID_NEPTUNE: 2347 m = (typeof(m)){"LPe1000", "PCIe", 2348 "Obsolete, Unsupported Fibre Channel Adapter"}; 2349 break; 2350 case PCI_DEVICE_ID_NEPTUNE_SCSP: 2351 m = (typeof(m)){"LPe1000-SP", "PCIe", 2352 "Obsolete, Unsupported Fibre Channel Adapter"}; 2353 break; 2354 case PCI_DEVICE_ID_NEPTUNE_DCSP: 2355 m = (typeof(m)){"LPe1002-SP", "PCIe", 2356 "Obsolete, Unsupported Fibre Channel Adapter"}; 2357 break; 2358 case PCI_DEVICE_ID_BMID: 2359 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; 2360 break; 2361 case PCI_DEVICE_ID_BSMB: 2362 m = (typeof(m)){"LP111", "PCI-X2", 2363 "Obsolete, Unsupported Fibre Channel Adapter"}; 2364 break; 2365 case PCI_DEVICE_ID_ZEPHYR: 2366 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2367 break; 2368 case PCI_DEVICE_ID_ZEPHYR_SCSP: 2369 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; 2370 break; 2371 case PCI_DEVICE_ID_ZEPHYR_DCSP: 2372 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; 2373 GE = 1; 2374 break; 2375 case PCI_DEVICE_ID_ZMID: 2376 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; 2377 break; 2378 case PCI_DEVICE_ID_ZSMB: 2379 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; 2380 break; 2381 case PCI_DEVICE_ID_LP101: 2382 m = (typeof(m)){"LP101", "PCI-X", 2383 "Obsolete, Unsupported Fibre Channel Adapter"}; 2384 break; 2385 case PCI_DEVICE_ID_LP10000S: 2386 m = (typeof(m)){"LP10000-S", "PCI", 2387 "Obsolete, Unsupported Fibre Channel Adapter"}; 2388 break; 2389 case PCI_DEVICE_ID_LP11000S: 2390 m = (typeof(m)){"LP11000-S", "PCI-X2", 2391 "Obsolete, Unsupported Fibre Channel Adapter"}; 2392 break; 2393 case PCI_DEVICE_ID_LPE11000S: 2394 m = (typeof(m)){"LPe11000-S", "PCIe", 2395 "Obsolete, Unsupported Fibre Channel Adapter"}; 2396 break; 2397 case PCI_DEVICE_ID_SAT: 2398 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; 2399 break; 2400 case PCI_DEVICE_ID_SAT_MID: 2401 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; 2402 break; 2403 case PCI_DEVICE_ID_SAT_SMB: 2404 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; 2405 break; 2406 case PCI_DEVICE_ID_SAT_DCSP: 2407 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; 2408 break; 2409 case PCI_DEVICE_ID_SAT_SCSP: 2410 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; 2411 break; 2412 case PCI_DEVICE_ID_SAT_S: 2413 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; 2414 break; 2415 case PCI_DEVICE_ID_HORNET: 2416 m = (typeof(m)){"LP21000", "PCIe", 2417 "Obsolete, Unsupported FCoE Adapter"}; 2418 GE = 1; 2419 break; 2420 case PCI_DEVICE_ID_PROTEUS_VF: 2421 m = (typeof(m)){"LPev12000", "PCIe IOV", 2422 "Obsolete, Unsupported Fibre Channel Adapter"}; 2423 break; 2424 case PCI_DEVICE_ID_PROTEUS_PF: 2425 m = (typeof(m)){"LPev12000", "PCIe IOV", 2426 "Obsolete, Unsupported Fibre Channel Adapter"}; 2427 break; 2428 case PCI_DEVICE_ID_PROTEUS_S: 2429 m = (typeof(m)){"LPemv12002-S", "PCIe IOV", 2430 "Obsolete, Unsupported Fibre Channel Adapter"}; 2431 break; 2432 case PCI_DEVICE_ID_TIGERSHARK: 2433 oneConnect = 1; 2434 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; 2435 break; 2436 case PCI_DEVICE_ID_TOMCAT: 2437 oneConnect = 1; 2438 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; 2439 break; 2440 case PCI_DEVICE_ID_FALCON: 2441 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", 2442 "EmulexSecure Fibre"}; 2443 break; 2444 case PCI_DEVICE_ID_BALIUS: 2445 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", 2446 "Obsolete, Unsupported Fibre Channel Adapter"}; 2447 break; 2448 case PCI_DEVICE_ID_LANCER_FC: 2449 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; 2450 break; 2451 case PCI_DEVICE_ID_LANCER_FC_VF: 2452 m = (typeof(m)){"LPe16000", "PCIe", 2453 "Obsolete, Unsupported Fibre Channel Adapter"}; 2454 break; 2455 case PCI_DEVICE_ID_LANCER_FCOE: 2456 oneConnect = 1; 2457 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; 2458 break; 2459 case PCI_DEVICE_ID_LANCER_FCOE_VF: 2460 oneConnect = 1; 2461 m = (typeof(m)){"OCe15100", "PCIe", 2462 "Obsolete, Unsupported FCoE"}; 2463 break; 2464 case PCI_DEVICE_ID_LANCER_G6_FC: 2465 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; 2466 break; 2467 case PCI_DEVICE_ID_SKYHAWK: 2468 case PCI_DEVICE_ID_SKYHAWK_VF: 2469 oneConnect = 1; 2470 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; 2471 break; 2472 default: 2473 m = (typeof(m)){"Unknown", "", ""}; 2474 break; 2475 } 2476 2477 if (mdp && mdp[0] == '\0') 2478 snprintf(mdp, 79,"%s", m.name); 2479 /* 2480 * oneConnect hba requires special processing, they are all initiators 2481 * and we put the port number on the end 2482 */ 2483 if (descp && descp[0] == '\0') { 2484 if (oneConnect) 2485 snprintf(descp, 255, 2486 "Emulex OneConnect %s, %s Initiator %s", 2487 m.name, m.function, 2488 phba->Port); 2489 else if (max_speed == 0) 2490 snprintf(descp, 255, 2491 "Emulex %s %s %s", 2492 m.name, m.bus, m.function); 2493 else 2494 snprintf(descp, 255, 2495 "Emulex %s %d%s %s %s", 2496 m.name, max_speed, (GE) ? "GE" : "Gb", 2497 m.bus, m.function); 2498 } 2499 } 2500 2501 /** 2502 * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring 2503 * @phba: pointer to lpfc hba data structure. 2504 * @pring: pointer to a IOCB ring. 2505 * @cnt: the number of IOCBs to be posted to the IOCB ring. 2506 * 2507 * This routine posts a given number of IOCBs with the associated DMA buffer 2508 * descriptors specified by the cnt argument to the given IOCB ring. 2509 * 2510 * Return codes 2511 * The number of IOCBs NOT able to be posted to the IOCB ring. 2512 **/ 2513 int 2514 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 2515 { 2516 IOCB_t *icmd; 2517 struct lpfc_iocbq *iocb; 2518 struct lpfc_dmabuf *mp1, *mp2; 2519 2520 cnt += pring->missbufcnt; 2521 2522 /* While there are buffers to post */ 2523 while (cnt > 0) { 2524 /* Allocate buffer for command iocb */ 2525 iocb = lpfc_sli_get_iocbq(phba); 2526 if (iocb == NULL) { 2527 pring->missbufcnt = cnt; 2528 return cnt; 2529 } 2530 icmd = &iocb->iocb; 2531 2532 /* 2 buffers can be posted per command */ 2533 /* Allocate buffer to post */ 2534 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2535 if (mp1) 2536 mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); 2537 if (!mp1 || !mp1->virt) { 2538 kfree(mp1); 2539 lpfc_sli_release_iocbq(phba, iocb); 2540 pring->missbufcnt = cnt; 2541 return cnt; 2542 } 2543 2544 INIT_LIST_HEAD(&mp1->list); 2545 /* Allocate buffer to post */ 2546 if (cnt > 1) { 2547 mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); 2548 if (mp2) 2549 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, 2550 &mp2->phys); 2551 if (!mp2 || !mp2->virt) { 2552 kfree(mp2); 2553 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2554 kfree(mp1); 2555 lpfc_sli_release_iocbq(phba, iocb); 2556 pring->missbufcnt = cnt; 2557 return cnt; 2558 } 2559 2560 INIT_LIST_HEAD(&mp2->list); 2561 } else { 2562 mp2 = NULL; 2563 } 2564 2565 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); 2566 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); 2567 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; 2568 icmd->ulpBdeCount = 1; 2569 cnt--; 2570 if (mp2) { 2571 icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); 2572 icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); 2573 icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; 2574 cnt--; 2575 icmd->ulpBdeCount = 2; 2576 } 2577 2578 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 2579 icmd->ulpLe = 1; 2580 2581 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == 2582 IOCB_ERROR) { 2583 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 2584 kfree(mp1); 2585 cnt++; 2586 if (mp2) { 2587 lpfc_mbuf_free(phba, mp2->virt, mp2->phys); 2588 kfree(mp2); 2589 cnt++; 2590 } 2591 lpfc_sli_release_iocbq(phba, iocb); 2592 pring->missbufcnt = cnt; 2593 return cnt; 2594 } 2595 lpfc_sli_ringpostbuf_put(phba, pring, mp1); 2596 if (mp2) 2597 lpfc_sli_ringpostbuf_put(phba, pring, mp2); 2598 } 2599 pring->missbufcnt = 0; 2600 return 0; 2601 } 2602 2603 /** 2604 * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring 2605 * @phba: pointer to lpfc hba data structure. 2606 * 2607 * This routine posts initial receive IOCB buffers to the ELS ring. The 2608 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is 2609 * set to 64 IOCBs. SLI3 only. 2610 * 2611 * Return codes 2612 * 0 - success (currently always success) 2613 **/ 2614 static int 2615 lpfc_post_rcv_buf(struct lpfc_hba *phba) 2616 { 2617 struct lpfc_sli *psli = &phba->sli; 2618 2619 /* Ring 0, ELS / CT buffers */ 2620 lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); 2621 /* Ring 2 - FCP no buffers needed */ 2622 2623 return 0; 2624 } 2625 2626 #define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 2627 2628 /** 2629 * lpfc_sha_init - Set up initial array of hash table entries 2630 * @HashResultPointer: pointer to an array as hash table. 2631 * 2632 * This routine sets up the initial values to the array of hash table entries 2633 * for the LC HBAs. 2634 **/ 2635 static void 2636 lpfc_sha_init(uint32_t * HashResultPointer) 2637 { 2638 HashResultPointer[0] = 0x67452301; 2639 HashResultPointer[1] = 0xEFCDAB89; 2640 HashResultPointer[2] = 0x98BADCFE; 2641 HashResultPointer[3] = 0x10325476; 2642 HashResultPointer[4] = 0xC3D2E1F0; 2643 } 2644 2645 /** 2646 * lpfc_sha_iterate - Iterate initial hash table with the working hash table 2647 * @HashResultPointer: pointer to an initial/result hash table. 2648 * @HashWorkingPointer: pointer to an working hash table. 2649 * 2650 * This routine iterates an initial hash table pointed by @HashResultPointer 2651 * with the values from the working hash table pointeed by @HashWorkingPointer. 2652 * The results are putting back to the initial hash table, returned through 2653 * the @HashResultPointer as the result hash table. 2654 **/ 2655 static void 2656 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 2657 { 2658 int t; 2659 uint32_t TEMP; 2660 uint32_t A, B, C, D, E; 2661 t = 16; 2662 do { 2663 HashWorkingPointer[t] = 2664 S(1, 2665 HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - 2666 8] ^ 2667 HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); 2668 } while (++t <= 79); 2669 t = 0; 2670 A = HashResultPointer[0]; 2671 B = HashResultPointer[1]; 2672 C = HashResultPointer[2]; 2673 D = HashResultPointer[3]; 2674 E = HashResultPointer[4]; 2675 2676 do { 2677 if (t < 20) { 2678 TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; 2679 } else if (t < 40) { 2680 TEMP = (B ^ C ^ D) + 0x6ED9EBA1; 2681 } else if (t < 60) { 2682 TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; 2683 } else { 2684 TEMP = (B ^ C ^ D) + 0xCA62C1D6; 2685 } 2686 TEMP += S(5, A) + E + HashWorkingPointer[t]; 2687 E = D; 2688 D = C; 2689 C = S(30, B); 2690 B = A; 2691 A = TEMP; 2692 } while (++t <= 79); 2693 2694 HashResultPointer[0] += A; 2695 HashResultPointer[1] += B; 2696 HashResultPointer[2] += C; 2697 HashResultPointer[3] += D; 2698 HashResultPointer[4] += E; 2699 2700 } 2701 2702 /** 2703 * lpfc_challenge_key - Create challenge key based on WWPN of the HBA 2704 * @RandomChallenge: pointer to the entry of host challenge random number array. 2705 * @HashWorking: pointer to the entry of the working hash array. 2706 * 2707 * This routine calculates the working hash array referred by @HashWorking 2708 * from the challenge random numbers associated with the host, referred by 2709 * @RandomChallenge. The result is put into the entry of the working hash 2710 * array and returned by reference through @HashWorking. 2711 **/ 2712 static void 2713 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 2714 { 2715 *HashWorking = (*RandomChallenge ^ *HashWorking); 2716 } 2717 2718 /** 2719 * lpfc_hba_init - Perform special handling for LC HBA initialization 2720 * @phba: pointer to lpfc hba data structure. 2721 * @hbainit: pointer to an array of unsigned 32-bit integers. 2722 * 2723 * This routine performs the special handling for LC HBA initialization. 2724 **/ 2725 void 2726 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 2727 { 2728 int t; 2729 uint32_t *HashWorking; 2730 uint32_t *pwwnn = (uint32_t *) phba->wwnn; 2731 2732 HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); 2733 if (!HashWorking) 2734 return; 2735 2736 HashWorking[0] = HashWorking[78] = *pwwnn++; 2737 HashWorking[1] = HashWorking[79] = *pwwnn; 2738 2739 for (t = 0; t < 7; t++) 2740 lpfc_challenge_key(phba->RandomData + t, HashWorking + t); 2741 2742 lpfc_sha_init(hbainit); 2743 lpfc_sha_iterate(hbainit, HashWorking); 2744 kfree(HashWorking); 2745 } 2746 2747 /** 2748 * lpfc_cleanup - Performs vport cleanups before deleting a vport 2749 * @vport: pointer to a virtual N_Port data structure. 2750 * 2751 * This routine performs the necessary cleanups before deleting the @vport. 2752 * It invokes the discovery state machine to perform necessary state 2753 * transitions and to release the ndlps associated with the @vport. Note, 2754 * the physical port is treated as @vport 0. 2755 **/ 2756 void 2757 lpfc_cleanup(struct lpfc_vport *vport) 2758 { 2759 struct lpfc_hba *phba = vport->phba; 2760 struct lpfc_nodelist *ndlp, *next_ndlp; 2761 int i = 0; 2762 2763 if (phba->link_state > LPFC_LINK_DOWN) 2764 lpfc_port_link_failure(vport); 2765 2766 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { 2767 if (!NLP_CHK_NODE_ACT(ndlp)) { 2768 ndlp = lpfc_enable_node(vport, ndlp, 2769 NLP_STE_UNUSED_NODE); 2770 if (!ndlp) 2771 continue; 2772 spin_lock_irq(&phba->ndlp_lock); 2773 NLP_SET_FREE_REQ(ndlp); 2774 spin_unlock_irq(&phba->ndlp_lock); 2775 /* Trigger the release of the ndlp memory */ 2776 lpfc_nlp_put(ndlp); 2777 continue; 2778 } 2779 spin_lock_irq(&phba->ndlp_lock); 2780 if (NLP_CHK_FREE_REQ(ndlp)) { 2781 /* The ndlp should not be in memory free mode already */ 2782 spin_unlock_irq(&phba->ndlp_lock); 2783 continue; 2784 } else 2785 /* Indicate request for freeing ndlp memory */ 2786 NLP_SET_FREE_REQ(ndlp); 2787 spin_unlock_irq(&phba->ndlp_lock); 2788 2789 if (vport->port_type != LPFC_PHYSICAL_PORT && 2790 ndlp->nlp_DID == Fabric_DID) { 2791 /* Just free up ndlp with Fabric_DID for vports */ 2792 lpfc_nlp_put(ndlp); 2793 continue; 2794 } 2795 2796 /* take care of nodes in unused state before the state 2797 * machine taking action. 2798 */ 2799 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { 2800 lpfc_nlp_put(ndlp); 2801 continue; 2802 } 2803 2804 if (ndlp->nlp_type & NLP_FABRIC) 2805 lpfc_disc_state_machine(vport, ndlp, NULL, 2806 NLP_EVT_DEVICE_RECOVERY); 2807 2808 lpfc_disc_state_machine(vport, ndlp, NULL, 2809 NLP_EVT_DEVICE_RM); 2810 } 2811 2812 /* At this point, ALL ndlp's should be gone 2813 * because of the previous NLP_EVT_DEVICE_RM. 2814 * Lets wait for this to happen, if needed. 2815 */ 2816 while (!list_empty(&vport->fc_nodes)) { 2817 if (i++ > 3000) { 2818 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2819 "0233 Nodelist not empty\n"); 2820 list_for_each_entry_safe(ndlp, next_ndlp, 2821 &vport->fc_nodes, nlp_listp) { 2822 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 2823 LOG_NODE, 2824 "0282 did:x%x ndlp:x%p " 2825 "usgmap:x%x refcnt:%d\n", 2826 ndlp->nlp_DID, (void *)ndlp, 2827 ndlp->nlp_usg_map, 2828 kref_read(&ndlp->kref)); 2829 } 2830 break; 2831 } 2832 2833 /* Wait for any activity on ndlps to settle */ 2834 msleep(10); 2835 } 2836 lpfc_cleanup_vports_rrqs(vport, NULL); 2837 } 2838 2839 /** 2840 * lpfc_stop_vport_timers - Stop all the timers associated with a vport 2841 * @vport: pointer to a virtual N_Port data structure. 2842 * 2843 * This routine stops all the timers associated with a @vport. This function 2844 * is invoked before disabling or deleting a @vport. Note that the physical 2845 * port is treated as @vport 0. 2846 **/ 2847 void 2848 lpfc_stop_vport_timers(struct lpfc_vport *vport) 2849 { 2850 del_timer_sync(&vport->els_tmofunc); 2851 del_timer_sync(&vport->delayed_disc_tmo); 2852 lpfc_can_disctmo(vport); 2853 return; 2854 } 2855 2856 /** 2857 * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2858 * @phba: pointer to lpfc hba data structure. 2859 * 2860 * This routine stops the SLI4 FCF rediscover wait timer if it's on. The 2861 * caller of this routine should already hold the host lock. 2862 **/ 2863 void 2864 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2865 { 2866 /* Clear pending FCF rediscovery wait flag */ 2867 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 2868 2869 /* Now, try to stop the timer */ 2870 del_timer(&phba->fcf.redisc_wait); 2871 } 2872 2873 /** 2874 * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer 2875 * @phba: pointer to lpfc hba data structure. 2876 * 2877 * This routine stops the SLI4 FCF rediscover wait timer if it's on. It 2878 * checks whether the FCF rediscovery wait timer is pending with the host 2879 * lock held before proceeding with disabling the timer and clearing the 2880 * wait timer pendig flag. 2881 **/ 2882 void 2883 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) 2884 { 2885 spin_lock_irq(&phba->hbalock); 2886 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 2887 /* FCF rediscovery timer already fired or stopped */ 2888 spin_unlock_irq(&phba->hbalock); 2889 return; 2890 } 2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2892 /* Clear failover in progress flags */ 2893 phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); 2894 spin_unlock_irq(&phba->hbalock); 2895 } 2896 2897 /** 2898 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA 2899 * @phba: pointer to lpfc hba data structure. 2900 * 2901 * This routine stops all the timers associated with a HBA. This function is 2902 * invoked before either putting a HBA offline or unloading the driver. 2903 **/ 2904 void 2905 lpfc_stop_hba_timers(struct lpfc_hba *phba) 2906 { 2907 lpfc_stop_vport_timers(phba->pport); 2908 del_timer_sync(&phba->sli.mbox_tmo); 2909 del_timer_sync(&phba->fabric_block_timer); 2910 del_timer_sync(&phba->eratt_poll); 2911 del_timer_sync(&phba->hb_tmofunc); 2912 if (phba->sli_rev == LPFC_SLI_REV4) { 2913 del_timer_sync(&phba->rrq_tmr); 2914 phba->hba_flag &= ~HBA_RRQ_ACTIVE; 2915 } 2916 phba->hb_outstanding = 0; 2917 2918 switch (phba->pci_dev_grp) { 2919 case LPFC_PCI_DEV_LP: 2920 /* Stop any LightPulse device specific driver timers */ 2921 del_timer_sync(&phba->fcp_poll_timer); 2922 break; 2923 case LPFC_PCI_DEV_OC: 2924 /* Stop any OneConnect device sepcific driver timers */ 2925 lpfc_sli4_stop_fcf_redisc_wait_timer(phba); 2926 break; 2927 default: 2928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2929 "0297 Invalid device group (x%x)\n", 2930 phba->pci_dev_grp); 2931 break; 2932 } 2933 return; 2934 } 2935 2936 /** 2937 * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked 2938 * @phba: pointer to lpfc hba data structure. 2939 * 2940 * This routine marks a HBA's management interface as blocked. Once the HBA's 2941 * management interface is marked as blocked, all the user space access to 2942 * the HBA, whether they are from sysfs interface or libdfc interface will 2943 * all be blocked. The HBA is set to block the management interface when the 2944 * driver prepares the HBA interface for online or offline. 2945 **/ 2946 static void 2947 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) 2948 { 2949 unsigned long iflag; 2950 uint8_t actcmd = MBX_HEARTBEAT; 2951 unsigned long timeout; 2952 2953 spin_lock_irqsave(&phba->hbalock, iflag); 2954 phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; 2955 spin_unlock_irqrestore(&phba->hbalock, iflag); 2956 if (mbx_action == LPFC_MBX_NO_WAIT) 2957 return; 2958 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; 2959 spin_lock_irqsave(&phba->hbalock, iflag); 2960 if (phba->sli.mbox_active) { 2961 actcmd = phba->sli.mbox_active->u.mb.mbxCommand; 2962 /* Determine how long we might wait for the active mailbox 2963 * command to be gracefully completed by firmware. 2964 */ 2965 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, 2966 phba->sli.mbox_active) * 1000) + jiffies; 2967 } 2968 spin_unlock_irqrestore(&phba->hbalock, iflag); 2969 2970 /* Wait for the outstnading mailbox command to complete */ 2971 while (phba->sli.mbox_active) { 2972 /* Check active mailbox complete status every 2ms */ 2973 msleep(2); 2974 if (time_after(jiffies, timeout)) { 2975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 2976 "2813 Mgmt IO is Blocked %x " 2977 "- mbox cmd %x still active\n", 2978 phba->sli.sli_flag, actcmd); 2979 break; 2980 } 2981 } 2982 } 2983 2984 /** 2985 * lpfc_sli4_node_prep - Assign RPIs for active nodes. 2986 * @phba: pointer to lpfc hba data structure. 2987 * 2988 * Allocate RPIs for all active remote nodes. This is needed whenever 2989 * an SLI4 adapter is reset and the driver is not unloading. Its purpose 2990 * is to fixup the temporary rpi assignments. 2991 **/ 2992 void 2993 lpfc_sli4_node_prep(struct lpfc_hba *phba) 2994 { 2995 struct lpfc_nodelist *ndlp, *next_ndlp; 2996 struct lpfc_vport **vports; 2997 int i, rpi; 2998 unsigned long flags; 2999 3000 if (phba->sli_rev != LPFC_SLI_REV4) 3001 return; 3002 3003 vports = lpfc_create_vport_work_array(phba); 3004 if (vports == NULL) 3005 return; 3006 3007 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3008 if (vports[i]->load_flag & FC_UNLOADING) 3009 continue; 3010 3011 list_for_each_entry_safe(ndlp, next_ndlp, 3012 &vports[i]->fc_nodes, 3013 nlp_listp) { 3014 if (!NLP_CHK_NODE_ACT(ndlp)) 3015 continue; 3016 rpi = lpfc_sli4_alloc_rpi(phba); 3017 if (rpi == LPFC_RPI_ALLOC_ERROR) { 3018 spin_lock_irqsave(&phba->ndlp_lock, flags); 3019 NLP_CLR_NODE_ACT(ndlp); 3020 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3021 continue; 3022 } 3023 ndlp->nlp_rpi = rpi; 3024 lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, 3025 "0009 rpi:%x DID:%x " 3026 "flg:%x map:%x %p\n", ndlp->nlp_rpi, 3027 ndlp->nlp_DID, ndlp->nlp_flag, 3028 ndlp->nlp_usg_map, ndlp); 3029 } 3030 } 3031 lpfc_destroy_vport_work_array(phba, vports); 3032 } 3033 3034 /** 3035 * lpfc_online - Initialize and bring a HBA online 3036 * @phba: pointer to lpfc hba data structure. 3037 * 3038 * This routine initializes the HBA and brings a HBA online. During this 3039 * process, the management interface is blocked to prevent user space access 3040 * to the HBA interfering with the driver initialization. 3041 * 3042 * Return codes 3043 * 0 - successful 3044 * 1 - failed 3045 **/ 3046 int 3047 lpfc_online(struct lpfc_hba *phba) 3048 { 3049 struct lpfc_vport *vport; 3050 struct lpfc_vport **vports; 3051 int i; 3052 bool vpis_cleared = false; 3053 3054 if (!phba) 3055 return 0; 3056 vport = phba->pport; 3057 3058 if (!(vport->fc_flag & FC_OFFLINE_MODE)) 3059 return 0; 3060 3061 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3062 "0458 Bring Adapter online\n"); 3063 3064 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 3065 3066 if (phba->sli_rev == LPFC_SLI_REV4) { 3067 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ 3068 lpfc_unblock_mgmt_io(phba); 3069 return 1; 3070 } 3071 spin_lock_irq(&phba->hbalock); 3072 if (!phba->sli4_hba.max_cfg_param.vpi_used) 3073 vpis_cleared = true; 3074 spin_unlock_irq(&phba->hbalock); 3075 } else { 3076 lpfc_sli_queue_init(phba); 3077 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ 3078 lpfc_unblock_mgmt_io(phba); 3079 return 1; 3080 } 3081 } 3082 3083 vports = lpfc_create_vport_work_array(phba); 3084 if (vports != NULL) { 3085 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3086 struct Scsi_Host *shost; 3087 shost = lpfc_shost_from_vport(vports[i]); 3088 spin_lock_irq(shost->host_lock); 3089 vports[i]->fc_flag &= ~FC_OFFLINE_MODE; 3090 if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) 3091 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3092 if (phba->sli_rev == LPFC_SLI_REV4) { 3093 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; 3094 if ((vpis_cleared) && 3095 (vports[i]->port_type != 3096 LPFC_PHYSICAL_PORT)) 3097 vports[i]->vpi = 0; 3098 } 3099 spin_unlock_irq(shost->host_lock); 3100 } 3101 } 3102 lpfc_destroy_vport_work_array(phba, vports); 3103 3104 lpfc_unblock_mgmt_io(phba); 3105 return 0; 3106 } 3107 3108 /** 3109 * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked 3110 * @phba: pointer to lpfc hba data structure. 3111 * 3112 * This routine marks a HBA's management interface as not blocked. Once the 3113 * HBA's management interface is marked as not blocked, all the user space 3114 * access to the HBA, whether they are from sysfs interface or libdfc 3115 * interface will be allowed. The HBA is set to block the management interface 3116 * when the driver prepares the HBA interface for online or offline and then 3117 * set to unblock the management interface afterwards. 3118 **/ 3119 void 3120 lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 3121 { 3122 unsigned long iflag; 3123 3124 spin_lock_irqsave(&phba->hbalock, iflag); 3125 phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; 3126 spin_unlock_irqrestore(&phba->hbalock, iflag); 3127 } 3128 3129 /** 3130 * lpfc_offline_prep - Prepare a HBA to be brought offline 3131 * @phba: pointer to lpfc hba data structure. 3132 * 3133 * This routine is invoked to prepare a HBA to be brought offline. It performs 3134 * unregistration login to all the nodes on all vports and flushes the mailbox 3135 * queue to make it ready to be brought offline. 3136 **/ 3137 void 3138 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) 3139 { 3140 struct lpfc_vport *vport = phba->pport; 3141 struct lpfc_nodelist *ndlp, *next_ndlp; 3142 struct lpfc_vport **vports; 3143 struct Scsi_Host *shost; 3144 int i; 3145 3146 if (vport->fc_flag & FC_OFFLINE_MODE) 3147 return; 3148 3149 lpfc_block_mgmt_io(phba, mbx_action); 3150 3151 lpfc_linkdown(phba); 3152 3153 /* Issue an unreg_login to all nodes on all vports */ 3154 vports = lpfc_create_vport_work_array(phba); 3155 if (vports != NULL) { 3156 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3157 if (vports[i]->load_flag & FC_UNLOADING) 3158 continue; 3159 shost = lpfc_shost_from_vport(vports[i]); 3160 spin_lock_irq(shost->host_lock); 3161 vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; 3162 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3163 vports[i]->fc_flag &= ~FC_VFI_REGISTERED; 3164 spin_unlock_irq(shost->host_lock); 3165 3166 shost = lpfc_shost_from_vport(vports[i]); 3167 list_for_each_entry_safe(ndlp, next_ndlp, 3168 &vports[i]->fc_nodes, 3169 nlp_listp) { 3170 if (!NLP_CHK_NODE_ACT(ndlp)) 3171 continue; 3172 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) 3173 continue; 3174 if (ndlp->nlp_type & NLP_FABRIC) { 3175 lpfc_disc_state_machine(vports[i], ndlp, 3176 NULL, NLP_EVT_DEVICE_RECOVERY); 3177 lpfc_disc_state_machine(vports[i], ndlp, 3178 NULL, NLP_EVT_DEVICE_RM); 3179 } 3180 spin_lock_irq(shost->host_lock); 3181 ndlp->nlp_flag &= ~NLP_NPR_ADISC; 3182 spin_unlock_irq(shost->host_lock); 3183 /* 3184 * Whenever an SLI4 port goes offline, free the 3185 * RPI. Get a new RPI when the adapter port 3186 * comes back online. 3187 */ 3188 if (phba->sli_rev == LPFC_SLI_REV4) { 3189 lpfc_printf_vlog(ndlp->vport, 3190 KERN_INFO, LOG_NODE, 3191 "0011 lpfc_offline: " 3192 "ndlp:x%p did %x " 3193 "usgmap:x%x rpi:%x\n", 3194 ndlp, ndlp->nlp_DID, 3195 ndlp->nlp_usg_map, 3196 ndlp->nlp_rpi); 3197 3198 lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); 3199 } 3200 lpfc_unreg_rpi(vports[i], ndlp); 3201 } 3202 } 3203 } 3204 lpfc_destroy_vport_work_array(phba, vports); 3205 3206 lpfc_sli_mbox_sys_shutdown(phba, mbx_action); 3207 } 3208 3209 /** 3210 * lpfc_offline - Bring a HBA offline 3211 * @phba: pointer to lpfc hba data structure. 3212 * 3213 * This routine actually brings a HBA offline. It stops all the timers 3214 * associated with the HBA, brings down the SLI layer, and eventually 3215 * marks the HBA as in offline state for the upper layer protocol. 3216 **/ 3217 void 3218 lpfc_offline(struct lpfc_hba *phba) 3219 { 3220 struct Scsi_Host *shost; 3221 struct lpfc_vport **vports; 3222 int i; 3223 3224 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 3225 return; 3226 3227 /* stop port and all timers associated with this hba */ 3228 lpfc_stop_port(phba); 3229 vports = lpfc_create_vport_work_array(phba); 3230 if (vports != NULL) 3231 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 3232 lpfc_stop_vport_timers(vports[i]); 3233 lpfc_destroy_vport_work_array(phba, vports); 3234 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 3235 "0460 Bring Adapter offline\n"); 3236 /* Bring down the SLI Layer and cleanup. The HBA is offline 3237 now. */ 3238 lpfc_sli_hba_down(phba); 3239 spin_lock_irq(&phba->hbalock); 3240 phba->work_ha = 0; 3241 spin_unlock_irq(&phba->hbalock); 3242 vports = lpfc_create_vport_work_array(phba); 3243 if (vports != NULL) 3244 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 3245 shost = lpfc_shost_from_vport(vports[i]); 3246 spin_lock_irq(shost->host_lock); 3247 vports[i]->work_port_events = 0; 3248 vports[i]->fc_flag |= FC_OFFLINE_MODE; 3249 spin_unlock_irq(shost->host_lock); 3250 } 3251 lpfc_destroy_vport_work_array(phba, vports); 3252 } 3253 3254 /** 3255 * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists 3256 * @phba: pointer to lpfc hba data structure. 3257 * 3258 * This routine is to free all the SCSI buffers and IOCBs from the driver 3259 * list back to kernel. It is called from lpfc_pci_remove_one to free 3260 * the internal resources before the device is removed from the system. 3261 **/ 3262 static void 3263 lpfc_scsi_free(struct lpfc_hba *phba) 3264 { 3265 struct lpfc_scsi_buf *sb, *sb_next; 3266 3267 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3268 return; 3269 3270 spin_lock_irq(&phba->hbalock); 3271 3272 /* Release all the lpfc_scsi_bufs maintained by this host. */ 3273 3274 spin_lock(&phba->scsi_buf_list_put_lock); 3275 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, 3276 list) { 3277 list_del(&sb->list); 3278 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3279 sb->dma_handle); 3280 kfree(sb); 3281 phba->total_scsi_bufs--; 3282 } 3283 spin_unlock(&phba->scsi_buf_list_put_lock); 3284 3285 spin_lock(&phba->scsi_buf_list_get_lock); 3286 list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, 3287 list) { 3288 list_del(&sb->list); 3289 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, 3290 sb->dma_handle); 3291 kfree(sb); 3292 phba->total_scsi_bufs--; 3293 } 3294 spin_unlock(&phba->scsi_buf_list_get_lock); 3295 spin_unlock_irq(&phba->hbalock); 3296 } 3297 /** 3298 * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists 3299 * @phba: pointer to lpfc hba data structure. 3300 * 3301 * This routine is to free all the NVME buffers and IOCBs from the driver 3302 * list back to kernel. It is called from lpfc_pci_remove_one to free 3303 * the internal resources before the device is removed from the system. 3304 **/ 3305 static void 3306 lpfc_nvme_free(struct lpfc_hba *phba) 3307 { 3308 struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; 3309 3310 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3311 return; 3312 3313 spin_lock_irq(&phba->hbalock); 3314 3315 /* Release all the lpfc_nvme_bufs maintained by this host. */ 3316 spin_lock(&phba->nvme_buf_list_put_lock); 3317 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3318 &phba->lpfc_nvme_buf_list_put, list) { 3319 list_del(&lpfc_ncmd->list); 3320 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3321 lpfc_ncmd->dma_handle); 3322 kfree(lpfc_ncmd); 3323 phba->total_nvme_bufs--; 3324 } 3325 spin_unlock(&phba->nvme_buf_list_put_lock); 3326 3327 spin_lock(&phba->nvme_buf_list_get_lock); 3328 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3329 &phba->lpfc_nvme_buf_list_get, list) { 3330 list_del(&lpfc_ncmd->list); 3331 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, 3332 lpfc_ncmd->dma_handle); 3333 kfree(lpfc_ncmd); 3334 phba->total_nvme_bufs--; 3335 } 3336 spin_unlock(&phba->nvme_buf_list_get_lock); 3337 spin_unlock_irq(&phba->hbalock); 3338 } 3339 /** 3340 * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping 3341 * @phba: pointer to lpfc hba data structure. 3342 * 3343 * This routine first calculates the sizes of the current els and allocated 3344 * scsi sgl lists, and then goes through all sgls to updates the physical 3345 * XRIs assigned due to port function reset. During port initialization, the 3346 * current els and allocated scsi sgl lists are 0s. 3347 * 3348 * Return codes 3349 * 0 - successful (for now, it always returns 0) 3350 **/ 3351 int 3352 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) 3353 { 3354 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3355 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3356 LIST_HEAD(els_sgl_list); 3357 int rc; 3358 3359 /* 3360 * update on pci function's els xri-sgl list 3361 */ 3362 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3363 3364 if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { 3365 /* els xri-sgl expanded */ 3366 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; 3367 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3368 "3157 ELS xri-sgl count increased from " 3369 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3370 els_xri_cnt); 3371 /* allocate the additional els sgls */ 3372 for (i = 0; i < xri_cnt; i++) { 3373 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3374 GFP_KERNEL); 3375 if (sglq_entry == NULL) { 3376 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3377 "2562 Failure to allocate an " 3378 "ELS sgl entry:%d\n", i); 3379 rc = -ENOMEM; 3380 goto out_free_mem; 3381 } 3382 sglq_entry->buff_type = GEN_BUFF_TYPE; 3383 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, 3384 &sglq_entry->phys); 3385 if (sglq_entry->virt == NULL) { 3386 kfree(sglq_entry); 3387 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3388 "2563 Failure to allocate an " 3389 "ELS mbuf:%d\n", i); 3390 rc = -ENOMEM; 3391 goto out_free_mem; 3392 } 3393 sglq_entry->sgl = sglq_entry->virt; 3394 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); 3395 sglq_entry->state = SGL_FREED; 3396 list_add_tail(&sglq_entry->list, &els_sgl_list); 3397 } 3398 spin_lock_irq(&phba->hbalock); 3399 spin_lock(&phba->sli4_hba.sgl_list_lock); 3400 list_splice_init(&els_sgl_list, 3401 &phba->sli4_hba.lpfc_els_sgl_list); 3402 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3403 spin_unlock_irq(&phba->hbalock); 3404 } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { 3405 /* els xri-sgl shrinked */ 3406 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; 3407 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3408 "3158 ELS xri-sgl count decreased from " 3409 "%d to %d\n", phba->sli4_hba.els_xri_cnt, 3410 els_xri_cnt); 3411 spin_lock_irq(&phba->hbalock); 3412 spin_lock(&phba->sli4_hba.sgl_list_lock); 3413 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, 3414 &els_sgl_list); 3415 /* release extra els sgls from list */ 3416 for (i = 0; i < xri_cnt; i++) { 3417 list_remove_head(&els_sgl_list, 3418 sglq_entry, struct lpfc_sglq, list); 3419 if (sglq_entry) { 3420 __lpfc_mbuf_free(phba, sglq_entry->virt, 3421 sglq_entry->phys); 3422 kfree(sglq_entry); 3423 } 3424 } 3425 list_splice_init(&els_sgl_list, 3426 &phba->sli4_hba.lpfc_els_sgl_list); 3427 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3428 spin_unlock_irq(&phba->hbalock); 3429 } else 3430 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3431 "3163 ELS xri-sgl count unchanged: %d\n", 3432 els_xri_cnt); 3433 phba->sli4_hba.els_xri_cnt = els_xri_cnt; 3434 3435 /* update xris to els sgls on the list */ 3436 sglq_entry = NULL; 3437 sglq_entry_next = NULL; 3438 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3439 &phba->sli4_hba.lpfc_els_sgl_list, list) { 3440 lxri = lpfc_sli4_next_xritag(phba); 3441 if (lxri == NO_XRI) { 3442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3443 "2400 Failed to allocate xri for " 3444 "ELS sgl\n"); 3445 rc = -ENOMEM; 3446 goto out_free_mem; 3447 } 3448 sglq_entry->sli4_lxritag = lxri; 3449 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3450 } 3451 return 0; 3452 3453 out_free_mem: 3454 lpfc_free_els_sgl_list(phba); 3455 return rc; 3456 } 3457 3458 /** 3459 * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping 3460 * @phba: pointer to lpfc hba data structure. 3461 * 3462 * This routine first calculates the sizes of the current els and allocated 3463 * scsi sgl lists, and then goes through all sgls to updates the physical 3464 * XRIs assigned due to port function reset. During port initialization, the 3465 * current els and allocated scsi sgl lists are 0s. 3466 * 3467 * Return codes 3468 * 0 - successful (for now, it always returns 0) 3469 **/ 3470 int 3471 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) 3472 { 3473 struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; 3474 uint16_t i, lxri, xri_cnt, els_xri_cnt; 3475 uint16_t nvmet_xri_cnt; 3476 LIST_HEAD(nvmet_sgl_list); 3477 int rc; 3478 3479 /* 3480 * update on pci function's nvmet xri-sgl list 3481 */ 3482 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3483 3484 /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ 3485 nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3486 if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { 3487 /* els xri-sgl expanded */ 3488 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; 3489 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3490 "6302 NVMET xri-sgl cnt grew from %d to %d\n", 3491 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); 3492 /* allocate the additional nvmet sgls */ 3493 for (i = 0; i < xri_cnt; i++) { 3494 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), 3495 GFP_KERNEL); 3496 if (sglq_entry == NULL) { 3497 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3498 "6303 Failure to allocate an " 3499 "NVMET sgl entry:%d\n", i); 3500 rc = -ENOMEM; 3501 goto out_free_mem; 3502 } 3503 sglq_entry->buff_type = NVMET_BUFF_TYPE; 3504 sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, 3505 &sglq_entry->phys); 3506 if (sglq_entry->virt == NULL) { 3507 kfree(sglq_entry); 3508 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3509 "6304 Failure to allocate an " 3510 "NVMET buf:%d\n", i); 3511 rc = -ENOMEM; 3512 goto out_free_mem; 3513 } 3514 sglq_entry->sgl = sglq_entry->virt; 3515 memset(sglq_entry->sgl, 0, 3516 phba->cfg_sg_dma_buf_size); 3517 sglq_entry->state = SGL_FREED; 3518 list_add_tail(&sglq_entry->list, &nvmet_sgl_list); 3519 } 3520 spin_lock_irq(&phba->hbalock); 3521 spin_lock(&phba->sli4_hba.sgl_list_lock); 3522 list_splice_init(&nvmet_sgl_list, 3523 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3524 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3525 spin_unlock_irq(&phba->hbalock); 3526 } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { 3527 /* nvmet xri-sgl shrunk */ 3528 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; 3529 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3530 "6305 NVMET xri-sgl count decreased from " 3531 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, 3532 nvmet_xri_cnt); 3533 spin_lock_irq(&phba->hbalock); 3534 spin_lock(&phba->sli4_hba.sgl_list_lock); 3535 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, 3536 &nvmet_sgl_list); 3537 /* release extra nvmet sgls from list */ 3538 for (i = 0; i < xri_cnt; i++) { 3539 list_remove_head(&nvmet_sgl_list, 3540 sglq_entry, struct lpfc_sglq, list); 3541 if (sglq_entry) { 3542 lpfc_nvmet_buf_free(phba, sglq_entry->virt, 3543 sglq_entry->phys); 3544 kfree(sglq_entry); 3545 } 3546 } 3547 list_splice_init(&nvmet_sgl_list, 3548 &phba->sli4_hba.lpfc_nvmet_sgl_list); 3549 spin_unlock(&phba->sli4_hba.sgl_list_lock); 3550 spin_unlock_irq(&phba->hbalock); 3551 } else 3552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3553 "6306 NVMET xri-sgl count unchanged: %d\n", 3554 nvmet_xri_cnt); 3555 phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; 3556 3557 /* update xris to nvmet sgls on the list */ 3558 sglq_entry = NULL; 3559 sglq_entry_next = NULL; 3560 list_for_each_entry_safe(sglq_entry, sglq_entry_next, 3561 &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { 3562 lxri = lpfc_sli4_next_xritag(phba); 3563 if (lxri == NO_XRI) { 3564 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3565 "6307 Failed to allocate xri for " 3566 "NVMET sgl\n"); 3567 rc = -ENOMEM; 3568 goto out_free_mem; 3569 } 3570 sglq_entry->sli4_lxritag = lxri; 3571 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3572 } 3573 return 0; 3574 3575 out_free_mem: 3576 lpfc_free_nvmet_sgl_list(phba); 3577 return rc; 3578 } 3579 3580 /** 3581 * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping 3582 * @phba: pointer to lpfc hba data structure. 3583 * 3584 * This routine first calculates the sizes of the current els and allocated 3585 * scsi sgl lists, and then goes through all sgls to updates the physical 3586 * XRIs assigned due to port function reset. During port initialization, the 3587 * current els and allocated scsi sgl lists are 0s. 3588 * 3589 * Return codes 3590 * 0 - successful (for now, it always returns 0) 3591 **/ 3592 int 3593 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) 3594 { 3595 struct lpfc_scsi_buf *psb, *psb_next; 3596 uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; 3597 LIST_HEAD(scsi_sgl_list); 3598 int rc; 3599 3600 /* 3601 * update on pci function's els xri-sgl list 3602 */ 3603 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3604 phba->total_scsi_bufs = 0; 3605 3606 /* 3607 * update on pci function's allocated scsi xri-sgl list 3608 */ 3609 /* maximum number of xris available for scsi buffers */ 3610 phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - 3611 els_xri_cnt; 3612 3613 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 3614 return 0; 3615 3616 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) 3617 phba->sli4_hba.scsi_xri_max = /* Split them up */ 3618 (phba->sli4_hba.scsi_xri_max * 3619 phba->cfg_xri_split) / 100; 3620 3621 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3622 spin_lock(&phba->scsi_buf_list_put_lock); 3623 list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); 3624 list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); 3625 spin_unlock(&phba->scsi_buf_list_put_lock); 3626 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3627 3628 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3629 "6060 Current allocated SCSI xri-sgl count:%d, " 3630 "maximum SCSI xri count:%d (split:%d)\n", 3631 phba->sli4_hba.scsi_xri_cnt, 3632 phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); 3633 3634 if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { 3635 /* max scsi xri shrinked below the allocated scsi buffers */ 3636 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - 3637 phba->sli4_hba.scsi_xri_max; 3638 /* release the extra allocated scsi buffers */ 3639 for (i = 0; i < scsi_xri_cnt; i++) { 3640 list_remove_head(&scsi_sgl_list, psb, 3641 struct lpfc_scsi_buf, list); 3642 if (psb) { 3643 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3644 psb->data, psb->dma_handle); 3645 kfree(psb); 3646 } 3647 } 3648 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3649 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; 3650 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3651 } 3652 3653 /* update xris associated to remaining allocated scsi buffers */ 3654 psb = NULL; 3655 psb_next = NULL; 3656 list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { 3657 lxri = lpfc_sli4_next_xritag(phba); 3658 if (lxri == NO_XRI) { 3659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3660 "2560 Failed to allocate xri for " 3661 "scsi buffer\n"); 3662 rc = -ENOMEM; 3663 goto out_free_mem; 3664 } 3665 psb->cur_iocbq.sli4_lxritag = lxri; 3666 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3667 } 3668 spin_lock_irq(&phba->scsi_buf_list_get_lock); 3669 spin_lock(&phba->scsi_buf_list_put_lock); 3670 list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); 3671 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 3672 spin_unlock(&phba->scsi_buf_list_put_lock); 3673 spin_unlock_irq(&phba->scsi_buf_list_get_lock); 3674 return 0; 3675 3676 out_free_mem: 3677 lpfc_scsi_free(phba); 3678 return rc; 3679 } 3680 3681 static uint64_t 3682 lpfc_get_wwpn(struct lpfc_hba *phba) 3683 { 3684 uint64_t wwn; 3685 int rc; 3686 LPFC_MBOXQ_t *mboxq; 3687 MAILBOX_t *mb; 3688 3689 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 3690 GFP_KERNEL); 3691 if (!mboxq) 3692 return (uint64_t)-1; 3693 3694 /* First get WWN of HBA instance */ 3695 lpfc_read_nv(phba, mboxq); 3696 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 3697 if (rc != MBX_SUCCESS) { 3698 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3699 "6019 Mailbox failed , mbxCmd x%x " 3700 "READ_NV, mbxStatus x%x\n", 3701 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 3702 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 3703 mempool_free(mboxq, phba->mbox_mem_pool); 3704 return (uint64_t) -1; 3705 } 3706 mb = &mboxq->u.mb; 3707 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); 3708 /* wwn is WWPN of HBA instance */ 3709 mempool_free(mboxq, phba->mbox_mem_pool); 3710 if (phba->sli_rev == LPFC_SLI_REV4) 3711 return be64_to_cpu(wwn); 3712 else 3713 return (((wwn & 0xffffffff00000000) >> 32) | 3714 ((wwn & 0x00000000ffffffff) << 32)); 3715 3716 } 3717 3718 /** 3719 * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping 3720 * @phba: pointer to lpfc hba data structure. 3721 * 3722 * This routine first calculates the sizes of the current els and allocated 3723 * scsi sgl lists, and then goes through all sgls to updates the physical 3724 * XRIs assigned due to port function reset. During port initialization, the 3725 * current els and allocated scsi sgl lists are 0s. 3726 * 3727 * Return codes 3728 * 0 - successful (for now, it always returns 0) 3729 **/ 3730 int 3731 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) 3732 { 3733 struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; 3734 uint16_t i, lxri, els_xri_cnt; 3735 uint16_t nvme_xri_cnt, nvme_xri_max; 3736 LIST_HEAD(nvme_sgl_list); 3737 int rc; 3738 3739 phba->total_nvme_bufs = 0; 3740 3741 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) 3742 return 0; 3743 /* 3744 * update on pci function's allocated nvme xri-sgl list 3745 */ 3746 3747 /* maximum number of xris available for nvme buffers */ 3748 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); 3749 nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; 3750 phba->sli4_hba.nvme_xri_max = nvme_xri_max; 3751 phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; 3752 3753 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 3754 "6074 Current allocated NVME xri-sgl count:%d, " 3755 "maximum NVME xri count:%d\n", 3756 phba->sli4_hba.nvme_xri_cnt, 3757 phba->sli4_hba.nvme_xri_max); 3758 3759 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3760 spin_lock(&phba->nvme_buf_list_put_lock); 3761 list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); 3762 list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); 3763 spin_unlock(&phba->nvme_buf_list_put_lock); 3764 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3765 3766 if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { 3767 /* max nvme xri shrunk below the allocated nvme buffers */ 3768 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3769 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - 3770 phba->sli4_hba.nvme_xri_max; 3771 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3772 /* release the extra allocated nvme buffers */ 3773 for (i = 0; i < nvme_xri_cnt; i++) { 3774 list_remove_head(&nvme_sgl_list, lpfc_ncmd, 3775 struct lpfc_nvme_buf, list); 3776 if (lpfc_ncmd) { 3777 pci_pool_free(phba->lpfc_sg_dma_buf_pool, 3778 lpfc_ncmd->data, 3779 lpfc_ncmd->dma_handle); 3780 kfree(lpfc_ncmd); 3781 } 3782 } 3783 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3784 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; 3785 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3786 } 3787 3788 /* update xris associated to remaining allocated nvme buffers */ 3789 lpfc_ncmd = NULL; 3790 lpfc_ncmd_next = NULL; 3791 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, 3792 &nvme_sgl_list, list) { 3793 lxri = lpfc_sli4_next_xritag(phba); 3794 if (lxri == NO_XRI) { 3795 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3796 "6075 Failed to allocate xri for " 3797 "nvme buffer\n"); 3798 rc = -ENOMEM; 3799 goto out_free_mem; 3800 } 3801 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; 3802 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; 3803 } 3804 spin_lock_irq(&phba->nvme_buf_list_get_lock); 3805 spin_lock(&phba->nvme_buf_list_put_lock); 3806 list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); 3807 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 3808 spin_unlock(&phba->nvme_buf_list_put_lock); 3809 spin_unlock_irq(&phba->nvme_buf_list_get_lock); 3810 return 0; 3811 3812 out_free_mem: 3813 lpfc_nvme_free(phba); 3814 return rc; 3815 } 3816 3817 /** 3818 * lpfc_create_port - Create an FC port 3819 * @phba: pointer to lpfc hba data structure. 3820 * @instance: a unique integer ID to this FC port. 3821 * @dev: pointer to the device data structure. 3822 * 3823 * This routine creates a FC port for the upper layer protocol. The FC port 3824 * can be created on top of either a physical port or a virtual port provided 3825 * by the HBA. This routine also allocates a SCSI host data structure (shost) 3826 * and associates the FC port created before adding the shost into the SCSI 3827 * layer. 3828 * 3829 * Return codes 3830 * @vport - pointer to the virtual N_Port data structure. 3831 * NULL - port create failed. 3832 **/ 3833 struct lpfc_vport * 3834 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 3835 { 3836 struct lpfc_vport *vport; 3837 struct Scsi_Host *shost = NULL; 3838 int error = 0; 3839 int i; 3840 uint64_t wwn; 3841 bool use_no_reset_hba = false; 3842 int rc; 3843 3844 if (lpfc_no_hba_reset_cnt) { 3845 if (phba->sli_rev < LPFC_SLI_REV4 && 3846 dev == &phba->pcidev->dev) { 3847 /* Reset the port first */ 3848 lpfc_sli_brdrestart(phba); 3849 rc = lpfc_sli_chipset_init(phba); 3850 if (rc) 3851 return NULL; 3852 } 3853 wwn = lpfc_get_wwpn(phba); 3854 } 3855 3856 for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { 3857 if (wwn == lpfc_no_hba_reset[i]) { 3858 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 3859 "6020 Setting use_no_reset port=%llx\n", 3860 wwn); 3861 use_no_reset_hba = true; 3862 break; 3863 } 3864 } 3865 3866 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 3867 if (dev != &phba->pcidev->dev) { 3868 shost = scsi_host_alloc(&lpfc_vport_template, 3869 sizeof(struct lpfc_vport)); 3870 } else { 3871 if (!use_no_reset_hba) 3872 shost = scsi_host_alloc(&lpfc_template, 3873 sizeof(struct lpfc_vport)); 3874 else 3875 shost = scsi_host_alloc(&lpfc_template_no_hr, 3876 sizeof(struct lpfc_vport)); 3877 } 3878 } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 3879 shost = scsi_host_alloc(&lpfc_template_nvme, 3880 sizeof(struct lpfc_vport)); 3881 } 3882 if (!shost) 3883 goto out; 3884 3885 vport = (struct lpfc_vport *) shost->hostdata; 3886 vport->phba = phba; 3887 vport->load_flag |= FC_LOADING; 3888 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 3889 vport->fc_rscn_flush = 0; 3890 lpfc_get_vport_cfgparam(vport); 3891 3892 shost->unique_id = instance; 3893 shost->max_id = LPFC_MAX_TARGET; 3894 shost->max_lun = vport->cfg_max_luns; 3895 shost->this_id = -1; 3896 shost->max_cmd_len = 16; 3897 shost->nr_hw_queues = phba->cfg_fcp_io_channel; 3898 if (phba->sli_rev == LPFC_SLI_REV4) { 3899 shost->dma_boundary = 3900 phba->sli4_hba.pc_sli4_params.sge_supp_len-1; 3901 shost->sg_tablesize = phba->cfg_sg_seg_cnt; 3902 } 3903 3904 /* 3905 * Set initial can_queue value since 0 is no longer supported and 3906 * scsi_add_host will fail. This will be adjusted later based on the 3907 * max xri value determined in hba setup. 3908 */ 3909 shost->can_queue = phba->cfg_hba_queue_depth - 10; 3910 if (dev != &phba->pcidev->dev) { 3911 shost->transportt = lpfc_vport_transport_template; 3912 vport->port_type = LPFC_NPIV_PORT; 3913 } else { 3914 shost->transportt = lpfc_transport_template; 3915 vport->port_type = LPFC_PHYSICAL_PORT; 3916 } 3917 3918 /* Initialize all internally managed lists. */ 3919 INIT_LIST_HEAD(&vport->fc_nodes); 3920 INIT_LIST_HEAD(&vport->rcv_buffer_list); 3921 spin_lock_init(&vport->work_port_lock); 3922 3923 setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, 3924 (unsigned long)vport); 3925 3926 setup_timer(&vport->els_tmofunc, lpfc_els_timeout, 3927 (unsigned long)vport); 3928 3929 setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 3930 (unsigned long)vport); 3931 3932 error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); 3933 if (error) 3934 goto out_put_shost; 3935 3936 spin_lock_irq(&phba->hbalock); 3937 list_add_tail(&vport->listentry, &phba->port_list); 3938 spin_unlock_irq(&phba->hbalock); 3939 return vport; 3940 3941 out_put_shost: 3942 scsi_host_put(shost); 3943 out: 3944 return NULL; 3945 } 3946 3947 /** 3948 * destroy_port - destroy an FC port 3949 * @vport: pointer to an lpfc virtual N_Port data structure. 3950 * 3951 * This routine destroys a FC port from the upper layer protocol. All the 3952 * resources associated with the port are released. 3953 **/ 3954 void 3955 destroy_port(struct lpfc_vport *vport) 3956 { 3957 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3958 struct lpfc_hba *phba = vport->phba; 3959 3960 lpfc_debugfs_terminate(vport); 3961 fc_remove_host(shost); 3962 scsi_remove_host(shost); 3963 3964 spin_lock_irq(&phba->hbalock); 3965 list_del_init(&vport->listentry); 3966 spin_unlock_irq(&phba->hbalock); 3967 3968 lpfc_cleanup(vport); 3969 return; 3970 } 3971 3972 /** 3973 * lpfc_get_instance - Get a unique integer ID 3974 * 3975 * This routine allocates a unique integer ID from lpfc_hba_index pool. It 3976 * uses the kernel idr facility to perform the task. 3977 * 3978 * Return codes: 3979 * instance - a unique integer ID allocated as the new instance. 3980 * -1 - lpfc get instance failed. 3981 **/ 3982 int 3983 lpfc_get_instance(void) 3984 { 3985 int ret; 3986 3987 ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); 3988 return ret < 0 ? -1 : ret; 3989 } 3990 3991 /** 3992 * lpfc_scan_finished - method for SCSI layer to detect whether scan is done 3993 * @shost: pointer to SCSI host data structure. 3994 * @time: elapsed time of the scan in jiffies. 3995 * 3996 * This routine is called by the SCSI layer with a SCSI host to determine 3997 * whether the scan host is finished. 3998 * 3999 * Note: there is no scan_start function as adapter initialization will have 4000 * asynchronously kicked off the link initialization. 4001 * 4002 * Return codes 4003 * 0 - SCSI host scan is not over yet. 4004 * 1 - SCSI host scan is over. 4005 **/ 4006 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 4007 { 4008 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4009 struct lpfc_hba *phba = vport->phba; 4010 int stat = 0; 4011 4012 spin_lock_irq(shost->host_lock); 4013 4014 if (vport->load_flag & FC_UNLOADING) { 4015 stat = 1; 4016 goto finished; 4017 } 4018 if (time >= msecs_to_jiffies(30 * 1000)) { 4019 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4020 "0461 Scanning longer than 30 " 4021 "seconds. Continuing initialization\n"); 4022 stat = 1; 4023 goto finished; 4024 } 4025 if (time >= msecs_to_jiffies(15 * 1000) && 4026 phba->link_state <= LPFC_LINK_DOWN) { 4027 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 4028 "0465 Link down longer than 15 " 4029 "seconds. Continuing initialization\n"); 4030 stat = 1; 4031 goto finished; 4032 } 4033 4034 if (vport->port_state != LPFC_VPORT_READY) 4035 goto finished; 4036 if (vport->num_disc_nodes || vport->fc_prli_sent) 4037 goto finished; 4038 if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) 4039 goto finished; 4040 if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) 4041 goto finished; 4042 4043 stat = 1; 4044 4045 finished: 4046 spin_unlock_irq(shost->host_lock); 4047 return stat; 4048 } 4049 4050 /** 4051 * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port 4052 * @shost: pointer to SCSI host data structure. 4053 * 4054 * This routine initializes a given SCSI host attributes on a FC port. The 4055 * SCSI host can be either on top of a physical port or a virtual port. 4056 **/ 4057 void lpfc_host_attrib_init(struct Scsi_Host *shost) 4058 { 4059 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 4060 struct lpfc_hba *phba = vport->phba; 4061 /* 4062 * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). 4063 */ 4064 4065 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 4066 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 4067 fc_host_supported_classes(shost) = FC_COS_CLASS3; 4068 4069 memset(fc_host_supported_fc4s(shost), 0, 4070 sizeof(fc_host_supported_fc4s(shost))); 4071 fc_host_supported_fc4s(shost)[2] = 1; 4072 fc_host_supported_fc4s(shost)[7] = 1; 4073 4074 lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), 4075 sizeof fc_host_symbolic_name(shost)); 4076 4077 fc_host_supported_speeds(shost) = 0; 4078 if (phba->lmt & LMT_32Gb) 4079 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; 4080 if (phba->lmt & LMT_16Gb) 4081 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; 4082 if (phba->lmt & LMT_10Gb) 4083 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; 4084 if (phba->lmt & LMT_8Gb) 4085 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; 4086 if (phba->lmt & LMT_4Gb) 4087 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; 4088 if (phba->lmt & LMT_2Gb) 4089 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; 4090 if (phba->lmt & LMT_1Gb) 4091 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; 4092 4093 fc_host_maxframe_size(shost) = 4094 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | 4095 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; 4096 4097 fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; 4098 4099 /* This value is also unchanging */ 4100 memset(fc_host_active_fc4s(shost), 0, 4101 sizeof(fc_host_active_fc4s(shost))); 4102 fc_host_active_fc4s(shost)[2] = 1; 4103 fc_host_active_fc4s(shost)[7] = 1; 4104 4105 fc_host_max_npiv_vports(shost) = phba->max_vpi; 4106 spin_lock_irq(shost->host_lock); 4107 vport->load_flag &= ~FC_LOADING; 4108 spin_unlock_irq(shost->host_lock); 4109 } 4110 4111 /** 4112 * lpfc_stop_port_s3 - Stop SLI3 device port 4113 * @phba: pointer to lpfc hba data structure. 4114 * 4115 * This routine is invoked to stop an SLI3 device port, it stops the device 4116 * from generating interrupts and stops the device driver's timers for the 4117 * device. 4118 **/ 4119 static void 4120 lpfc_stop_port_s3(struct lpfc_hba *phba) 4121 { 4122 /* Clear all interrupt enable conditions */ 4123 writel(0, phba->HCregaddr); 4124 readl(phba->HCregaddr); /* flush */ 4125 /* Clear all pending interrupts */ 4126 writel(0xffffffff, phba->HAregaddr); 4127 readl(phba->HAregaddr); /* flush */ 4128 4129 /* Reset some HBA SLI setup states */ 4130 lpfc_stop_hba_timers(phba); 4131 phba->pport->work_port_events = 0; 4132 } 4133 4134 /** 4135 * lpfc_stop_port_s4 - Stop SLI4 device port 4136 * @phba: pointer to lpfc hba data structure. 4137 * 4138 * This routine is invoked to stop an SLI4 device port, it stops the device 4139 * from generating interrupts and stops the device driver's timers for the 4140 * device. 4141 **/ 4142 static void 4143 lpfc_stop_port_s4(struct lpfc_hba *phba) 4144 { 4145 /* Reset some HBA SLI4 setup states */ 4146 lpfc_stop_hba_timers(phba); 4147 phba->pport->work_port_events = 0; 4148 phba->sli4_hba.intr_enable = 0; 4149 } 4150 4151 /** 4152 * lpfc_stop_port - Wrapper function for stopping hba port 4153 * @phba: Pointer to HBA context object. 4154 * 4155 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from 4156 * the API jump table function pointer from the lpfc_hba struct. 4157 **/ 4158 void 4159 lpfc_stop_port(struct lpfc_hba *phba) 4160 { 4161 phba->lpfc_stop_port(phba); 4162 } 4163 4164 /** 4165 * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer 4166 * @phba: Pointer to hba for which this call is being executed. 4167 * 4168 * This routine starts the timer waiting for the FCF rediscovery to complete. 4169 **/ 4170 void 4171 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) 4172 { 4173 unsigned long fcf_redisc_wait_tmo = 4174 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); 4175 /* Start fcf rediscovery wait period timer */ 4176 mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); 4177 spin_lock_irq(&phba->hbalock); 4178 /* Allow action to new fcf asynchronous event */ 4179 phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); 4180 /* Mark the FCF rediscovery pending state */ 4181 phba->fcf.fcf_flag |= FCF_REDISC_PEND; 4182 spin_unlock_irq(&phba->hbalock); 4183 } 4184 4185 /** 4186 * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout 4187 * @ptr: Map to lpfc_hba data structure pointer. 4188 * 4189 * This routine is invoked when waiting for FCF table rediscover has been 4190 * timed out. If new FCF record(s) has (have) been discovered during the 4191 * wait period, a new FCF event shall be added to the FCOE async event 4192 * list, and then worker thread shall be waked up for processing from the 4193 * worker thread context. 4194 **/ 4195 static void 4196 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr) 4197 { 4198 struct lpfc_hba *phba = (struct lpfc_hba *)ptr; 4199 4200 /* Don't send FCF rediscovery event if timer cancelled */ 4201 spin_lock_irq(&phba->hbalock); 4202 if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { 4203 spin_unlock_irq(&phba->hbalock); 4204 return; 4205 } 4206 /* Clear FCF rediscovery timer pending flag */ 4207 phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; 4208 /* FCF rediscovery event to worker thread */ 4209 phba->fcf.fcf_flag |= FCF_REDISC_EVT; 4210 spin_unlock_irq(&phba->hbalock); 4211 lpfc_printf_log(phba, KERN_INFO, LOG_FIP, 4212 "2776 FCF rediscover quiescent timer expired\n"); 4213 /* wake up worker thread */ 4214 lpfc_worker_wake_up(phba); 4215 } 4216 4217 /** 4218 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code 4219 * @phba: pointer to lpfc hba data structure. 4220 * @acqe_link: pointer to the async link completion queue entry. 4221 * 4222 * This routine is to parse the SLI4 link-attention link fault code and 4223 * translate it into the base driver's read link attention mailbox command 4224 * status. 4225 * 4226 * Return: Link-attention status in terms of base driver's coding. 4227 **/ 4228 static uint16_t 4229 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, 4230 struct lpfc_acqe_link *acqe_link) 4231 { 4232 uint16_t latt_fault; 4233 4234 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { 4235 case LPFC_ASYNC_LINK_FAULT_NONE: 4236 case LPFC_ASYNC_LINK_FAULT_LOCAL: 4237 case LPFC_ASYNC_LINK_FAULT_REMOTE: 4238 latt_fault = 0; 4239 break; 4240 default: 4241 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4242 "0398 Invalid link fault code: x%x\n", 4243 bf_get(lpfc_acqe_link_fault, acqe_link)); 4244 latt_fault = MBXERR_ERROR; 4245 break; 4246 } 4247 return latt_fault; 4248 } 4249 4250 /** 4251 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type 4252 * @phba: pointer to lpfc hba data structure. 4253 * @acqe_link: pointer to the async link completion queue entry. 4254 * 4255 * This routine is to parse the SLI4 link attention type and translate it 4256 * into the base driver's link attention type coding. 4257 * 4258 * Return: Link attention type in terms of base driver's coding. 4259 **/ 4260 static uint8_t 4261 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, 4262 struct lpfc_acqe_link *acqe_link) 4263 { 4264 uint8_t att_type; 4265 4266 switch (bf_get(lpfc_acqe_link_status, acqe_link)) { 4267 case LPFC_ASYNC_LINK_STATUS_DOWN: 4268 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: 4269 att_type = LPFC_ATT_LINK_DOWN; 4270 break; 4271 case LPFC_ASYNC_LINK_STATUS_UP: 4272 /* Ignore physical link up events - wait for logical link up */ 4273 att_type = LPFC_ATT_RESERVED; 4274 break; 4275 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: 4276 att_type = LPFC_ATT_LINK_UP; 4277 break; 4278 default: 4279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4280 "0399 Invalid link attention type: x%x\n", 4281 bf_get(lpfc_acqe_link_status, acqe_link)); 4282 att_type = LPFC_ATT_RESERVED; 4283 break; 4284 } 4285 return att_type; 4286 } 4287 4288 /** 4289 * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed 4290 * @phba: pointer to lpfc hba data structure. 4291 * 4292 * This routine is to get an SLI3 FC port's link speed in Mbps. 4293 * 4294 * Return: link speed in terms of Mbps. 4295 **/ 4296 uint32_t 4297 lpfc_sli_port_speed_get(struct lpfc_hba *phba) 4298 { 4299 uint32_t link_speed; 4300 4301 if (!lpfc_is_link_up(phba)) 4302 return 0; 4303 4304 if (phba->sli_rev <= LPFC_SLI_REV3) { 4305 switch (phba->fc_linkspeed) { 4306 case LPFC_LINK_SPEED_1GHZ: 4307 link_speed = 1000; 4308 break; 4309 case LPFC_LINK_SPEED_2GHZ: 4310 link_speed = 2000; 4311 break; 4312 case LPFC_LINK_SPEED_4GHZ: 4313 link_speed = 4000; 4314 break; 4315 case LPFC_LINK_SPEED_8GHZ: 4316 link_speed = 8000; 4317 break; 4318 case LPFC_LINK_SPEED_10GHZ: 4319 link_speed = 10000; 4320 break; 4321 case LPFC_LINK_SPEED_16GHZ: 4322 link_speed = 16000; 4323 break; 4324 default: 4325 link_speed = 0; 4326 } 4327 } else { 4328 if (phba->sli4_hba.link_state.logical_speed) 4329 link_speed = 4330 phba->sli4_hba.link_state.logical_speed; 4331 else 4332 link_speed = phba->sli4_hba.link_state.speed; 4333 } 4334 return link_speed; 4335 } 4336 4337 /** 4338 * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed 4339 * @phba: pointer to lpfc hba data structure. 4340 * @evt_code: asynchronous event code. 4341 * @speed_code: asynchronous event link speed code. 4342 * 4343 * This routine is to parse the giving SLI4 async event link speed code into 4344 * value of Mbps for the link speed. 4345 * 4346 * Return: link speed in terms of Mbps. 4347 **/ 4348 static uint32_t 4349 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, 4350 uint8_t speed_code) 4351 { 4352 uint32_t port_speed; 4353 4354 switch (evt_code) { 4355 case LPFC_TRAILER_CODE_LINK: 4356 switch (speed_code) { 4357 case LPFC_ASYNC_LINK_SPEED_ZERO: 4358 port_speed = 0; 4359 break; 4360 case LPFC_ASYNC_LINK_SPEED_10MBPS: 4361 port_speed = 10; 4362 break; 4363 case LPFC_ASYNC_LINK_SPEED_100MBPS: 4364 port_speed = 100; 4365 break; 4366 case LPFC_ASYNC_LINK_SPEED_1GBPS: 4367 port_speed = 1000; 4368 break; 4369 case LPFC_ASYNC_LINK_SPEED_10GBPS: 4370 port_speed = 10000; 4371 break; 4372 case LPFC_ASYNC_LINK_SPEED_20GBPS: 4373 port_speed = 20000; 4374 break; 4375 case LPFC_ASYNC_LINK_SPEED_25GBPS: 4376 port_speed = 25000; 4377 break; 4378 case LPFC_ASYNC_LINK_SPEED_40GBPS: 4379 port_speed = 40000; 4380 break; 4381 default: 4382 port_speed = 0; 4383 } 4384 break; 4385 case LPFC_TRAILER_CODE_FC: 4386 switch (speed_code) { 4387 case LPFC_FC_LA_SPEED_UNKNOWN: 4388 port_speed = 0; 4389 break; 4390 case LPFC_FC_LA_SPEED_1G: 4391 port_speed = 1000; 4392 break; 4393 case LPFC_FC_LA_SPEED_2G: 4394 port_speed = 2000; 4395 break; 4396 case LPFC_FC_LA_SPEED_4G: 4397 port_speed = 4000; 4398 break; 4399 case LPFC_FC_LA_SPEED_8G: 4400 port_speed = 8000; 4401 break; 4402 case LPFC_FC_LA_SPEED_10G: 4403 port_speed = 10000; 4404 break; 4405 case LPFC_FC_LA_SPEED_16G: 4406 port_speed = 16000; 4407 break; 4408 case LPFC_FC_LA_SPEED_32G: 4409 port_speed = 32000; 4410 break; 4411 default: 4412 port_speed = 0; 4413 } 4414 break; 4415 default: 4416 port_speed = 0; 4417 } 4418 return port_speed; 4419 } 4420 4421 /** 4422 * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event 4423 * @phba: pointer to lpfc hba data structure. 4424 * @acqe_link: pointer to the async link completion queue entry. 4425 * 4426 * This routine is to handle the SLI4 asynchronous FCoE link event. 4427 **/ 4428 static void 4429 lpfc_sli4_async_link_evt(struct lpfc_hba *phba, 4430 struct lpfc_acqe_link *acqe_link) 4431 { 4432 struct lpfc_dmabuf *mp; 4433 LPFC_MBOXQ_t *pmb; 4434 MAILBOX_t *mb; 4435 struct lpfc_mbx_read_top *la; 4436 uint8_t att_type; 4437 int rc; 4438 4439 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); 4440 if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) 4441 return; 4442 phba->fcoe_eventtag = acqe_link->event_tag; 4443 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4444 if (!pmb) { 4445 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4446 "0395 The mboxq allocation failed\n"); 4447 return; 4448 } 4449 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4450 if (!mp) { 4451 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4452 "0396 The lpfc_dmabuf allocation failed\n"); 4453 goto out_free_pmb; 4454 } 4455 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4456 if (!mp->virt) { 4457 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4458 "0397 The mbuf allocation failed\n"); 4459 goto out_free_dmabuf; 4460 } 4461 4462 /* Cleanup any outstanding ELS commands */ 4463 lpfc_els_flush_all_cmd(phba); 4464 4465 /* Block ELS IOCBs until we have done process link event */ 4466 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4467 4468 /* Update link event statistics */ 4469 phba->sli.slistat.link_event++; 4470 4471 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4472 lpfc_read_topology(phba, pmb, mp); 4473 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4474 pmb->vport = phba->pport; 4475 4476 /* Keep the link status for extra SLI4 state machine reference */ 4477 phba->sli4_hba.link_state.speed = 4478 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, 4479 bf_get(lpfc_acqe_link_speed, acqe_link)); 4480 phba->sli4_hba.link_state.duplex = 4481 bf_get(lpfc_acqe_link_duplex, acqe_link); 4482 phba->sli4_hba.link_state.status = 4483 bf_get(lpfc_acqe_link_status, acqe_link); 4484 phba->sli4_hba.link_state.type = 4485 bf_get(lpfc_acqe_link_type, acqe_link); 4486 phba->sli4_hba.link_state.number = 4487 bf_get(lpfc_acqe_link_number, acqe_link); 4488 phba->sli4_hba.link_state.fault = 4489 bf_get(lpfc_acqe_link_fault, acqe_link); 4490 phba->sli4_hba.link_state.logical_speed = 4491 bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; 4492 4493 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4494 "2900 Async FC/FCoE Link event - Speed:%dGBit " 4495 "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " 4496 "Logical speed:%dMbps Fault:%d\n", 4497 phba->sli4_hba.link_state.speed, 4498 phba->sli4_hba.link_state.topology, 4499 phba->sli4_hba.link_state.status, 4500 phba->sli4_hba.link_state.type, 4501 phba->sli4_hba.link_state.number, 4502 phba->sli4_hba.link_state.logical_speed, 4503 phba->sli4_hba.link_state.fault); 4504 /* 4505 * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch 4506 * topology info. Note: Optional for non FC-AL ports. 4507 */ 4508 if (!(phba->hba_flag & HBA_FCOE_MODE)) { 4509 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4510 if (rc == MBX_NOT_FINISHED) 4511 goto out_free_dmabuf; 4512 return; 4513 } 4514 /* 4515 * For FCoE Mode: fill in all the topology information we need and call 4516 * the READ_TOPOLOGY completion routine to continue without actually 4517 * sending the READ_TOPOLOGY mailbox command to the port. 4518 */ 4519 /* Parse and translate status field */ 4520 mb = &pmb->u.mb; 4521 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link); 4522 4523 /* Parse and translate link attention fields */ 4524 la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; 4525 la->eventTag = acqe_link->event_tag; 4526 bf_set(lpfc_mbx_read_top_att_type, la, att_type); 4527 bf_set(lpfc_mbx_read_top_link_spd, la, 4528 (bf_get(lpfc_acqe_link_speed, acqe_link))); 4529 4530 /* Fake the the following irrelvant fields */ 4531 bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); 4532 bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); 4533 bf_set(lpfc_mbx_read_top_il, la, 0); 4534 bf_set(lpfc_mbx_read_top_pb, la, 0); 4535 bf_set(lpfc_mbx_read_top_fa, la, 0); 4536 bf_set(lpfc_mbx_read_top_mm, la, 0); 4537 4538 /* Invoke the lpfc_handle_latt mailbox command callback function */ 4539 lpfc_mbx_cmpl_read_topology(phba, pmb); 4540 4541 return; 4542 4543 out_free_dmabuf: 4544 kfree(mp); 4545 out_free_pmb: 4546 mempool_free(pmb, phba->mbox_mem_pool); 4547 } 4548 4549 /** 4550 * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event 4551 * @phba: pointer to lpfc hba data structure. 4552 * @acqe_fc: pointer to the async fc completion queue entry. 4553 * 4554 * This routine is to handle the SLI4 asynchronous FC event. It will simply log 4555 * that the event was received and then issue a read_topology mailbox command so 4556 * that the rest of the driver will treat it the same as SLI3. 4557 **/ 4558 static void 4559 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) 4560 { 4561 struct lpfc_dmabuf *mp; 4562 LPFC_MBOXQ_t *pmb; 4563 MAILBOX_t *mb; 4564 struct lpfc_mbx_read_top *la; 4565 int rc; 4566 4567 if (bf_get(lpfc_trailer_type, acqe_fc) != 4568 LPFC_FC_LA_EVENT_TYPE_FC_LINK) { 4569 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4570 "2895 Non FC link Event detected.(%d)\n", 4571 bf_get(lpfc_trailer_type, acqe_fc)); 4572 return; 4573 } 4574 /* Keep the link status for extra SLI4 state machine reference */ 4575 phba->sli4_hba.link_state.speed = 4576 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, 4577 bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); 4578 phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; 4579 phba->sli4_hba.link_state.topology = 4580 bf_get(lpfc_acqe_fc_la_topology, acqe_fc); 4581 phba->sli4_hba.link_state.status = 4582 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); 4583 phba->sli4_hba.link_state.type = 4584 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); 4585 phba->sli4_hba.link_state.number = 4586 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); 4587 phba->sli4_hba.link_state.fault = 4588 bf_get(lpfc_acqe_link_fault, acqe_fc); 4589 phba->sli4_hba.link_state.logical_speed = 4590 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; 4591 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4592 "2896 Async FC event - Speed:%dGBaud Topology:x%x " 4593 "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" 4594 "%dMbps Fault:%d\n", 4595 phba->sli4_hba.link_state.speed, 4596 phba->sli4_hba.link_state.topology, 4597 phba->sli4_hba.link_state.status, 4598 phba->sli4_hba.link_state.type, 4599 phba->sli4_hba.link_state.number, 4600 phba->sli4_hba.link_state.logical_speed, 4601 phba->sli4_hba.link_state.fault); 4602 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 4603 if (!pmb) { 4604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4605 "2897 The mboxq allocation failed\n"); 4606 return; 4607 } 4608 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 4609 if (!mp) { 4610 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4611 "2898 The lpfc_dmabuf allocation failed\n"); 4612 goto out_free_pmb; 4613 } 4614 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); 4615 if (!mp->virt) { 4616 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4617 "2899 The mbuf allocation failed\n"); 4618 goto out_free_dmabuf; 4619 } 4620 4621 /* Cleanup any outstanding ELS commands */ 4622 lpfc_els_flush_all_cmd(phba); 4623 4624 /* Block ELS IOCBs until we have done process link event */ 4625 phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; 4626 4627 /* Update link event statistics */ 4628 phba->sli.slistat.link_event++; 4629 4630 /* Create lpfc_handle_latt mailbox command from link ACQE */ 4631 lpfc_read_topology(phba, pmb, mp); 4632 pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; 4633 pmb->vport = phba->pport; 4634 4635 if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { 4636 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); 4637 4638 switch (phba->sli4_hba.link_state.status) { 4639 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: 4640 phba->link_flag |= LS_MDS_LINK_DOWN; 4641 break; 4642 case LPFC_FC_LA_TYPE_MDS_LOOPBACK: 4643 phba->link_flag |= LS_MDS_LOOPBACK; 4644 break; 4645 default: 4646 break; 4647 } 4648 4649 /* Parse and translate status field */ 4650 mb = &pmb->u.mb; 4651 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, 4652 (void *)acqe_fc); 4653 4654 /* Parse and translate link attention fields */ 4655 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; 4656 la->eventTag = acqe_fc->event_tag; 4657 4658 if (phba->sli4_hba.link_state.status == 4659 LPFC_FC_LA_TYPE_UNEXP_WWPN) { 4660 bf_set(lpfc_mbx_read_top_att_type, la, 4661 LPFC_FC_LA_TYPE_UNEXP_WWPN); 4662 } else { 4663 bf_set(lpfc_mbx_read_top_att_type, la, 4664 LPFC_FC_LA_TYPE_LINK_DOWN); 4665 } 4666 /* Invoke the mailbox command callback function */ 4667 lpfc_mbx_cmpl_read_topology(phba, pmb); 4668 4669 return; 4670 } 4671 4672 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); 4673 if (rc == MBX_NOT_FINISHED) 4674 goto out_free_dmabuf; 4675 return; 4676 4677 out_free_dmabuf: 4678 kfree(mp); 4679 out_free_pmb: 4680 mempool_free(pmb, phba->mbox_mem_pool); 4681 } 4682 4683 /** 4684 * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event 4685 * @phba: pointer to lpfc hba data structure. 4686 * @acqe_fc: pointer to the async SLI completion queue entry. 4687 * 4688 * This routine is to handle the SLI4 asynchronous SLI events. 4689 **/ 4690 static void 4691 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) 4692 { 4693 char port_name; 4694 char message[128]; 4695 uint8_t status; 4696 uint8_t evt_type; 4697 uint8_t operational = 0; 4698 struct temp_event temp_event_data; 4699 struct lpfc_acqe_misconfigured_event *misconfigured; 4700 struct Scsi_Host *shost; 4701 4702 evt_type = bf_get(lpfc_trailer_type, acqe_sli); 4703 4704 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4705 "2901 Async SLI event - Event Data1:x%08x Event Data2:" 4706 "x%08x SLI Event Type:%d\n", 4707 acqe_sli->event_data1, acqe_sli->event_data2, 4708 evt_type); 4709 4710 port_name = phba->Port[0]; 4711 if (port_name == 0x00) 4712 port_name = '?'; /* get port name is empty */ 4713 4714 switch (evt_type) { 4715 case LPFC_SLI_EVENT_TYPE_OVER_TEMP: 4716 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4717 temp_event_data.event_code = LPFC_THRESHOLD_TEMP; 4718 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4719 4720 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 4721 "3190 Over Temperature:%d Celsius- Port Name %c\n", 4722 acqe_sli->event_data1, port_name); 4723 4724 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; 4725 shost = lpfc_shost_from_vport(phba->pport); 4726 fc_host_post_vendor_event(shost, fc_get_event_number(), 4727 sizeof(temp_event_data), 4728 (char *)&temp_event_data, 4729 SCSI_NL_VID_TYPE_PCI 4730 | PCI_VENDOR_ID_EMULEX); 4731 break; 4732 case LPFC_SLI_EVENT_TYPE_NORM_TEMP: 4733 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; 4734 temp_event_data.event_code = LPFC_NORMAL_TEMP; 4735 temp_event_data.data = (uint32_t)acqe_sli->event_data1; 4736 4737 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4738 "3191 Normal Temperature:%d Celsius - Port Name %c\n", 4739 acqe_sli->event_data1, port_name); 4740 4741 shost = lpfc_shost_from_vport(phba->pport); 4742 fc_host_post_vendor_event(shost, fc_get_event_number(), 4743 sizeof(temp_event_data), 4744 (char *)&temp_event_data, 4745 SCSI_NL_VID_TYPE_PCI 4746 | PCI_VENDOR_ID_EMULEX); 4747 break; 4748 case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: 4749 misconfigured = (struct lpfc_acqe_misconfigured_event *) 4750 &acqe_sli->event_data1; 4751 4752 /* fetch the status for this port */ 4753 switch (phba->sli4_hba.lnk_info.lnk_no) { 4754 case LPFC_LINK_NUMBER_0: 4755 status = bf_get(lpfc_sli_misconfigured_port0_state, 4756 &misconfigured->theEvent); 4757 operational = bf_get(lpfc_sli_misconfigured_port0_op, 4758 &misconfigured->theEvent); 4759 break; 4760 case LPFC_LINK_NUMBER_1: 4761 status = bf_get(lpfc_sli_misconfigured_port1_state, 4762 &misconfigured->theEvent); 4763 operational = bf_get(lpfc_sli_misconfigured_port1_op, 4764 &misconfigured->theEvent); 4765 break; 4766 case LPFC_LINK_NUMBER_2: 4767 status = bf_get(lpfc_sli_misconfigured_port2_state, 4768 &misconfigured->theEvent); 4769 operational = bf_get(lpfc_sli_misconfigured_port2_op, 4770 &misconfigured->theEvent); 4771 break; 4772 case LPFC_LINK_NUMBER_3: 4773 status = bf_get(lpfc_sli_misconfigured_port3_state, 4774 &misconfigured->theEvent); 4775 operational = bf_get(lpfc_sli_misconfigured_port3_op, 4776 &misconfigured->theEvent); 4777 break; 4778 default: 4779 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4780 "3296 " 4781 "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " 4782 "event: Invalid link %d", 4783 phba->sli4_hba.lnk_info.lnk_no); 4784 return; 4785 } 4786 4787 /* Skip if optic state unchanged */ 4788 if (phba->sli4_hba.lnk_info.optic_state == status) 4789 return; 4790 4791 switch (status) { 4792 case LPFC_SLI_EVENT_STATUS_VALID: 4793 sprintf(message, "Physical Link is functional"); 4794 break; 4795 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: 4796 sprintf(message, "Optics faulted/incorrectly " 4797 "installed/not installed - Reseat optics, " 4798 "if issue not resolved, replace."); 4799 break; 4800 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: 4801 sprintf(message, 4802 "Optics of two types installed - Remove one " 4803 "optic or install matching pair of optics."); 4804 break; 4805 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: 4806 sprintf(message, "Incompatible optics - Replace with " 4807 "compatible optics for card to function."); 4808 break; 4809 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: 4810 sprintf(message, "Unqualified optics - Replace with " 4811 "Avago optics for Warranty and Technical " 4812 "Support - Link is%s operational", 4813 (operational) ? " not" : ""); 4814 break; 4815 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: 4816 sprintf(message, "Uncertified optics - Replace with " 4817 "Avago-certified optics to enable link " 4818 "operation - Link is%s operational", 4819 (operational) ? " not" : ""); 4820 break; 4821 default: 4822 /* firmware is reporting a status we don't know about */ 4823 sprintf(message, "Unknown event status x%02x", status); 4824 break; 4825 } 4826 phba->sli4_hba.lnk_info.optic_state = status; 4827 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 4828 "3176 Port Name %c %s\n", port_name, message); 4829 break; 4830 case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: 4831 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4832 "3192 Remote DPort Test Initiated - " 4833 "Event Data1:x%08x Event Data2: x%08x\n", 4834 acqe_sli->event_data1, acqe_sli->event_data2); 4835 break; 4836 default: 4837 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 4838 "3193 Async SLI event - Event Data1:x%08x Event Data2:" 4839 "x%08x SLI Event Type:%d\n", 4840 acqe_sli->event_data1, acqe_sli->event_data2, 4841 evt_type); 4842 break; 4843 } 4844 } 4845 4846 /** 4847 * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport 4848 * @vport: pointer to vport data structure. 4849 * 4850 * This routine is to perform Clear Virtual Link (CVL) on a vport in 4851 * response to a CVL event. 4852 * 4853 * Return the pointer to the ndlp with the vport if successful, otherwise 4854 * return NULL. 4855 **/ 4856 static struct lpfc_nodelist * 4857 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) 4858 { 4859 struct lpfc_nodelist *ndlp; 4860 struct Scsi_Host *shost; 4861 struct lpfc_hba *phba; 4862 4863 if (!vport) 4864 return NULL; 4865 phba = vport->phba; 4866 if (!phba) 4867 return NULL; 4868 ndlp = lpfc_findnode_did(vport, Fabric_DID); 4869 if (!ndlp) { 4870 /* Cannot find existing Fabric ndlp, so allocate a new one */ 4871 ndlp = lpfc_nlp_init(vport, Fabric_DID); 4872 if (!ndlp) 4873 return 0; 4874 /* Set the node type */ 4875 ndlp->nlp_type |= NLP_FABRIC; 4876 /* Put ndlp onto node list */ 4877 lpfc_enqueue_node(vport, ndlp); 4878 } else if (!NLP_CHK_NODE_ACT(ndlp)) { 4879 /* re-setup ndlp without removing from node list */ 4880 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); 4881 if (!ndlp) 4882 return 0; 4883 } 4884 if ((phba->pport->port_state < LPFC_FLOGI) && 4885 (phba->pport->port_state != LPFC_VPORT_FAILED)) 4886 return NULL; 4887 /* If virtual link is not yet instantiated ignore CVL */ 4888 if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) 4889 && (vport->port_state != LPFC_VPORT_FAILED)) 4890 return NULL; 4891 shost = lpfc_shost_from_vport(vport); 4892 if (!shost) 4893 return NULL; 4894 lpfc_linkdown_port(vport); 4895 lpfc_cleanup_pending_mbox(vport); 4896 spin_lock_irq(shost->host_lock); 4897 vport->fc_flag |= FC_VPORT_CVL_RCVD; 4898 spin_unlock_irq(shost->host_lock); 4899 4900 return ndlp; 4901 } 4902 4903 /** 4904 * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports 4905 * @vport: pointer to lpfc hba data structure. 4906 * 4907 * This routine is to perform Clear Virtual Link (CVL) on all vports in 4908 * response to a FCF dead event. 4909 **/ 4910 static void 4911 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) 4912 { 4913 struct lpfc_vport **vports; 4914 int i; 4915 4916 vports = lpfc_create_vport_work_array(phba); 4917 if (vports) 4918 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) 4919 lpfc_sli4_perform_vport_cvl(vports[i]); 4920 lpfc_destroy_vport_work_array(phba, vports); 4921 } 4922 4923 /** 4924 * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event 4925 * @phba: pointer to lpfc hba data structure. 4926 * @acqe_link: pointer to the async fcoe completion queue entry. 4927 * 4928 * This routine is to handle the SLI4 asynchronous fcoe event. 4929 **/ 4930 static void 4931 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, 4932 struct lpfc_acqe_fip *acqe_fip) 4933 { 4934 uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); 4935 int rc; 4936 struct lpfc_vport *vport; 4937 struct lpfc_nodelist *ndlp; 4938 struct Scsi_Host *shost; 4939 int active_vlink_present; 4940 struct lpfc_vport **vports; 4941 int i; 4942 4943 phba->fc_eventTag = acqe_fip->event_tag; 4944 phba->fcoe_eventtag = acqe_fip->event_tag; 4945 switch (event_type) { 4946 case LPFC_FIP_EVENT_TYPE_NEW_FCF: 4947 case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: 4948 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) 4949 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 4950 LOG_DISCOVERY, 4951 "2546 New FCF event, evt_tag:x%x, " 4952 "index:x%x\n", 4953 acqe_fip->event_tag, 4954 acqe_fip->index); 4955 else 4956 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | 4957 LOG_DISCOVERY, 4958 "2788 FCF param modified event, " 4959 "evt_tag:x%x, index:x%x\n", 4960 acqe_fip->event_tag, 4961 acqe_fip->index); 4962 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 4963 /* 4964 * During period of FCF discovery, read the FCF 4965 * table record indexed by the event to update 4966 * FCF roundrobin failover eligible FCF bmask. 4967 */ 4968 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 4969 LOG_DISCOVERY, 4970 "2779 Read FCF (x%x) for updating " 4971 "roundrobin FCF failover bmask\n", 4972 acqe_fip->index); 4973 rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); 4974 } 4975 4976 /* If the FCF discovery is in progress, do nothing. */ 4977 spin_lock_irq(&phba->hbalock); 4978 if (phba->hba_flag & FCF_TS_INPROG) { 4979 spin_unlock_irq(&phba->hbalock); 4980 break; 4981 } 4982 /* If fast FCF failover rescan event is pending, do nothing */ 4983 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) { 4984 spin_unlock_irq(&phba->hbalock); 4985 break; 4986 } 4987 4988 /* If the FCF has been in discovered state, do nothing. */ 4989 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { 4990 spin_unlock_irq(&phba->hbalock); 4991 break; 4992 } 4993 spin_unlock_irq(&phba->hbalock); 4994 4995 /* Otherwise, scan the entire FCF table and re-discover SAN */ 4996 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 4997 "2770 Start FCF table scan per async FCF " 4998 "event, evt_tag:x%x, index:x%x\n", 4999 acqe_fip->event_tag, acqe_fip->index); 5000 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, 5001 LPFC_FCOE_FCF_GET_FIRST); 5002 if (rc) 5003 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5004 "2547 Issue FCF scan read FCF mailbox " 5005 "command failed (x%x)\n", rc); 5006 break; 5007 5008 case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: 5009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5010 "2548 FCF Table full count 0x%x tag 0x%x\n", 5011 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), 5012 acqe_fip->event_tag); 5013 break; 5014 5015 case LPFC_FIP_EVENT_TYPE_FCF_DEAD: 5016 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5017 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5018 "2549 FCF (x%x) disconnected from network, " 5019 "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); 5020 /* 5021 * If we are in the middle of FCF failover process, clear 5022 * the corresponding FCF bit in the roundrobin bitmap. 5023 */ 5024 spin_lock_irq(&phba->hbalock); 5025 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && 5026 (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { 5027 spin_unlock_irq(&phba->hbalock); 5028 /* Update FLOGI FCF failover eligible FCF bmask */ 5029 lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); 5030 break; 5031 } 5032 spin_unlock_irq(&phba->hbalock); 5033 5034 /* If the event is not for currently used fcf do nothing */ 5035 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) 5036 break; 5037 5038 /* 5039 * Otherwise, request the port to rediscover the entire FCF 5040 * table for a fast recovery from case that the current FCF 5041 * is no longer valid as we are not in the middle of FCF 5042 * failover process already. 5043 */ 5044 spin_lock_irq(&phba->hbalock); 5045 /* Mark the fast failover process in progress */ 5046 phba->fcf.fcf_flag |= FCF_DEAD_DISC; 5047 spin_unlock_irq(&phba->hbalock); 5048 5049 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5050 "2771 Start FCF fast failover process due to " 5051 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " 5052 "\n", acqe_fip->event_tag, acqe_fip->index); 5053 rc = lpfc_sli4_redisc_fcf_table(phba); 5054 if (rc) { 5055 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5056 LOG_DISCOVERY, 5057 "2772 Issue FCF rediscover mabilbox " 5058 "command failed, fail through to FCF " 5059 "dead event\n"); 5060 spin_lock_irq(&phba->hbalock); 5061 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; 5062 spin_unlock_irq(&phba->hbalock); 5063 /* 5064 * Last resort will fail over by treating this 5065 * as a link down to FCF registration. 5066 */ 5067 lpfc_sli4_fcf_dead_failthrough(phba); 5068 } else { 5069 /* Reset FCF roundrobin bmask for new discovery */ 5070 lpfc_sli4_clear_fcf_rr_bmask(phba); 5071 /* 5072 * Handling fast FCF failover to a DEAD FCF event is 5073 * considered equalivant to receiving CVL to all vports. 5074 */ 5075 lpfc_sli4_perform_all_vport_cvl(phba); 5076 } 5077 break; 5078 case LPFC_FIP_EVENT_TYPE_CVL: 5079 phba->fcoe_cvl_eventtag = acqe_fip->event_tag; 5080 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5081 "2718 Clear Virtual Link Received for VPI 0x%x" 5082 " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); 5083 5084 vport = lpfc_find_vport_by_vpid(phba, 5085 acqe_fip->index); 5086 ndlp = lpfc_sli4_perform_vport_cvl(vport); 5087 if (!ndlp) 5088 break; 5089 active_vlink_present = 0; 5090 5091 vports = lpfc_create_vport_work_array(phba); 5092 if (vports) { 5093 for (i = 0; i <= phba->max_vports && vports[i] != NULL; 5094 i++) { 5095 if ((!(vports[i]->fc_flag & 5096 FC_VPORT_CVL_RCVD)) && 5097 (vports[i]->port_state > LPFC_FDISC)) { 5098 active_vlink_present = 1; 5099 break; 5100 } 5101 } 5102 lpfc_destroy_vport_work_array(phba, vports); 5103 } 5104 5105 /* 5106 * Don't re-instantiate if vport is marked for deletion. 5107 * If we are here first then vport_delete is going to wait 5108 * for discovery to complete. 5109 */ 5110 if (!(vport->load_flag & FC_UNLOADING) && 5111 active_vlink_present) { 5112 /* 5113 * If there are other active VLinks present, 5114 * re-instantiate the Vlink using FDISC. 5115 */ 5116 mod_timer(&ndlp->nlp_delayfunc, 5117 jiffies + msecs_to_jiffies(1000)); 5118 shost = lpfc_shost_from_vport(vport); 5119 spin_lock_irq(shost->host_lock); 5120 ndlp->nlp_flag |= NLP_DELAY_TMO; 5121 spin_unlock_irq(shost->host_lock); 5122 ndlp->nlp_last_elscmd = ELS_CMD_FDISC; 5123 vport->port_state = LPFC_FDISC; 5124 } else { 5125 /* 5126 * Otherwise, we request port to rediscover 5127 * the entire FCF table for a fast recovery 5128 * from possible case that the current FCF 5129 * is no longer valid if we are not already 5130 * in the FCF failover process. 5131 */ 5132 spin_lock_irq(&phba->hbalock); 5133 if (phba->fcf.fcf_flag & FCF_DISCOVERY) { 5134 spin_unlock_irq(&phba->hbalock); 5135 break; 5136 } 5137 /* Mark the fast failover process in progress */ 5138 phba->fcf.fcf_flag |= FCF_ACVL_DISC; 5139 spin_unlock_irq(&phba->hbalock); 5140 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | 5141 LOG_DISCOVERY, 5142 "2773 Start FCF failover per CVL, " 5143 "evt_tag:x%x\n", acqe_fip->event_tag); 5144 rc = lpfc_sli4_redisc_fcf_table(phba); 5145 if (rc) { 5146 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | 5147 LOG_DISCOVERY, 5148 "2774 Issue FCF rediscover " 5149 "mabilbox command failed, " 5150 "through to CVL event\n"); 5151 spin_lock_irq(&phba->hbalock); 5152 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; 5153 spin_unlock_irq(&phba->hbalock); 5154 /* 5155 * Last resort will be re-try on the 5156 * the current registered FCF entry. 5157 */ 5158 lpfc_retry_pport_discovery(phba); 5159 } else 5160 /* 5161 * Reset FCF roundrobin bmask for new 5162 * discovery. 5163 */ 5164 lpfc_sli4_clear_fcf_rr_bmask(phba); 5165 } 5166 break; 5167 default: 5168 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5169 "0288 Unknown FCoE event type 0x%x event tag " 5170 "0x%x\n", event_type, acqe_fip->event_tag); 5171 break; 5172 } 5173 } 5174 5175 /** 5176 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event 5177 * @phba: pointer to lpfc hba data structure. 5178 * @acqe_link: pointer to the async dcbx completion queue entry. 5179 * 5180 * This routine is to handle the SLI4 asynchronous dcbx event. 5181 **/ 5182 static void 5183 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, 5184 struct lpfc_acqe_dcbx *acqe_dcbx) 5185 { 5186 phba->fc_eventTag = acqe_dcbx->event_tag; 5187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5188 "0290 The SLI4 DCBX asynchronous event is not " 5189 "handled yet\n"); 5190 } 5191 5192 /** 5193 * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event 5194 * @phba: pointer to lpfc hba data structure. 5195 * @acqe_link: pointer to the async grp5 completion queue entry. 5196 * 5197 * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event 5198 * is an asynchronous notified of a logical link speed change. The Port 5199 * reports the logical link speed in units of 10Mbps. 5200 **/ 5201 static void 5202 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, 5203 struct lpfc_acqe_grp5 *acqe_grp5) 5204 { 5205 uint16_t prev_ll_spd; 5206 5207 phba->fc_eventTag = acqe_grp5->event_tag; 5208 phba->fcoe_eventtag = acqe_grp5->event_tag; 5209 prev_ll_spd = phba->sli4_hba.link_state.logical_speed; 5210 phba->sli4_hba.link_state.logical_speed = 5211 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; 5212 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5213 "2789 GRP5 Async Event: Updating logical link speed " 5214 "from %dMbps to %dMbps\n", prev_ll_spd, 5215 phba->sli4_hba.link_state.logical_speed); 5216 } 5217 5218 /** 5219 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event 5220 * @phba: pointer to lpfc hba data structure. 5221 * 5222 * This routine is invoked by the worker thread to process all the pending 5223 * SLI4 asynchronous events. 5224 **/ 5225 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) 5226 { 5227 struct lpfc_cq_event *cq_event; 5228 5229 /* First, declare the async event has been handled */ 5230 spin_lock_irq(&phba->hbalock); 5231 phba->hba_flag &= ~ASYNC_EVENT; 5232 spin_unlock_irq(&phba->hbalock); 5233 /* Now, handle all the async events */ 5234 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { 5235 /* Get the first event from the head of the event queue */ 5236 spin_lock_irq(&phba->hbalock); 5237 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, 5238 cq_event, struct lpfc_cq_event, list); 5239 spin_unlock_irq(&phba->hbalock); 5240 /* Process the asynchronous event */ 5241 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { 5242 case LPFC_TRAILER_CODE_LINK: 5243 lpfc_sli4_async_link_evt(phba, 5244 &cq_event->cqe.acqe_link); 5245 break; 5246 case LPFC_TRAILER_CODE_FCOE: 5247 lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); 5248 break; 5249 case LPFC_TRAILER_CODE_DCBX: 5250 lpfc_sli4_async_dcbx_evt(phba, 5251 &cq_event->cqe.acqe_dcbx); 5252 break; 5253 case LPFC_TRAILER_CODE_GRP5: 5254 lpfc_sli4_async_grp5_evt(phba, 5255 &cq_event->cqe.acqe_grp5); 5256 break; 5257 case LPFC_TRAILER_CODE_FC: 5258 lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); 5259 break; 5260 case LPFC_TRAILER_CODE_SLI: 5261 lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); 5262 break; 5263 default: 5264 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 5265 "1804 Invalid asynchrous event code: " 5266 "x%x\n", bf_get(lpfc_trailer_code, 5267 &cq_event->cqe.mcqe_cmpl)); 5268 break; 5269 } 5270 /* Free the completion event processed to the free pool */ 5271 lpfc_sli4_cq_event_release(phba, cq_event); 5272 } 5273 } 5274 5275 /** 5276 * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event 5277 * @phba: pointer to lpfc hba data structure. 5278 * 5279 * This routine is invoked by the worker thread to process FCF table 5280 * rediscovery pending completion event. 5281 **/ 5282 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) 5283 { 5284 int rc; 5285 5286 spin_lock_irq(&phba->hbalock); 5287 /* Clear FCF rediscovery timeout event */ 5288 phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; 5289 /* Clear driver fast failover FCF record flag */ 5290 phba->fcf.failover_rec.flag = 0; 5291 /* Set state for FCF fast failover */ 5292 phba->fcf.fcf_flag |= FCF_REDISC_FOV; 5293 spin_unlock_irq(&phba->hbalock); 5294 5295 /* Scan FCF table from the first entry to re-discover SAN */ 5296 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, 5297 "2777 Start post-quiescent FCF table scan\n"); 5298 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); 5299 if (rc) 5300 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, 5301 "2747 Issue FCF scan read FCF mailbox " 5302 "command failed 0x%x\n", rc); 5303 } 5304 5305 /** 5306 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table 5307 * @phba: pointer to lpfc hba data structure. 5308 * @dev_grp: The HBA PCI-Device group number. 5309 * 5310 * This routine is invoked to set up the per HBA PCI-Device group function 5311 * API jump table entries. 5312 * 5313 * Return: 0 if success, otherwise -ENODEV 5314 **/ 5315 int 5316 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 5317 { 5318 int rc; 5319 5320 /* Set up lpfc PCI-device group */ 5321 phba->pci_dev_grp = dev_grp; 5322 5323 /* The LPFC_PCI_DEV_OC uses SLI4 */ 5324 if (dev_grp == LPFC_PCI_DEV_OC) 5325 phba->sli_rev = LPFC_SLI_REV4; 5326 5327 /* Set up device INIT API function jump table */ 5328 rc = lpfc_init_api_table_setup(phba, dev_grp); 5329 if (rc) 5330 return -ENODEV; 5331 /* Set up SCSI API function jump table */ 5332 rc = lpfc_scsi_api_table_setup(phba, dev_grp); 5333 if (rc) 5334 return -ENODEV; 5335 /* Set up SLI API function jump table */ 5336 rc = lpfc_sli_api_table_setup(phba, dev_grp); 5337 if (rc) 5338 return -ENODEV; 5339 /* Set up MBOX API function jump table */ 5340 rc = lpfc_mbox_api_table_setup(phba, dev_grp); 5341 if (rc) 5342 return -ENODEV; 5343 5344 return 0; 5345 } 5346 5347 /** 5348 * lpfc_log_intr_mode - Log the active interrupt mode 5349 * @phba: pointer to lpfc hba data structure. 5350 * @intr_mode: active interrupt mode adopted. 5351 * 5352 * This routine it invoked to log the currently used active interrupt mode 5353 * to the device. 5354 **/ 5355 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 5356 { 5357 switch (intr_mode) { 5358 case 0: 5359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5360 "0470 Enable INTx interrupt mode.\n"); 5361 break; 5362 case 1: 5363 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5364 "0481 Enabled MSI interrupt mode.\n"); 5365 break; 5366 case 2: 5367 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5368 "0480 Enabled MSI-X interrupt mode.\n"); 5369 break; 5370 default: 5371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5372 "0482 Illegal interrupt mode.\n"); 5373 break; 5374 } 5375 return; 5376 } 5377 5378 /** 5379 * lpfc_enable_pci_dev - Enable a generic PCI device. 5380 * @phba: pointer to lpfc hba data structure. 5381 * 5382 * This routine is invoked to enable the PCI device that is common to all 5383 * PCI devices. 5384 * 5385 * Return codes 5386 * 0 - successful 5387 * other values - error 5388 **/ 5389 static int 5390 lpfc_enable_pci_dev(struct lpfc_hba *phba) 5391 { 5392 struct pci_dev *pdev; 5393 5394 /* Obtain PCI device reference */ 5395 if (!phba->pcidev) 5396 goto out_error; 5397 else 5398 pdev = phba->pcidev; 5399 /* Enable PCI device */ 5400 if (pci_enable_device_mem(pdev)) 5401 goto out_error; 5402 /* Request PCI resource for the device */ 5403 if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) 5404 goto out_disable_device; 5405 /* Set up device as PCI master and save state for EEH */ 5406 pci_set_master(pdev); 5407 pci_try_set_mwi(pdev); 5408 pci_save_state(pdev); 5409 5410 /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ 5411 if (pci_is_pcie(pdev)) 5412 pdev->needs_freset = 1; 5413 5414 return 0; 5415 5416 out_disable_device: 5417 pci_disable_device(pdev); 5418 out_error: 5419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5420 "1401 Failed to enable pci device\n"); 5421 return -ENODEV; 5422 } 5423 5424 /** 5425 * lpfc_disable_pci_dev - Disable a generic PCI device. 5426 * @phba: pointer to lpfc hba data structure. 5427 * 5428 * This routine is invoked to disable the PCI device that is common to all 5429 * PCI devices. 5430 **/ 5431 static void 5432 lpfc_disable_pci_dev(struct lpfc_hba *phba) 5433 { 5434 struct pci_dev *pdev; 5435 5436 /* Obtain PCI device reference */ 5437 if (!phba->pcidev) 5438 return; 5439 else 5440 pdev = phba->pcidev; 5441 /* Release PCI resource and disable PCI device */ 5442 pci_release_mem_regions(pdev); 5443 pci_disable_device(pdev); 5444 5445 return; 5446 } 5447 5448 /** 5449 * lpfc_reset_hba - Reset a hba 5450 * @phba: pointer to lpfc hba data structure. 5451 * 5452 * This routine is invoked to reset a hba device. It brings the HBA 5453 * offline, performs a board restart, and then brings the board back 5454 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up 5455 * on outstanding mailbox commands. 5456 **/ 5457 void 5458 lpfc_reset_hba(struct lpfc_hba *phba) 5459 { 5460 /* If resets are disabled then set error state and return. */ 5461 if (!phba->cfg_enable_hba_reset) { 5462 phba->link_state = LPFC_HBA_ERROR; 5463 return; 5464 } 5465 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) 5466 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 5467 else 5468 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); 5469 lpfc_offline(phba); 5470 lpfc_sli_brdrestart(phba); 5471 lpfc_online(phba); 5472 lpfc_unblock_mgmt_io(phba); 5473 } 5474 5475 /** 5476 * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions 5477 * @phba: pointer to lpfc hba data structure. 5478 * 5479 * This function enables the PCI SR-IOV virtual functions to a physical 5480 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5481 * enable the number of virtual functions to the physical function. As 5482 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5483 * API call does not considered as an error condition for most of the device. 5484 **/ 5485 uint16_t 5486 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) 5487 { 5488 struct pci_dev *pdev = phba->pcidev; 5489 uint16_t nr_virtfn; 5490 int pos; 5491 5492 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); 5493 if (pos == 0) 5494 return 0; 5495 5496 pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); 5497 return nr_virtfn; 5498 } 5499 5500 /** 5501 * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions 5502 * @phba: pointer to lpfc hba data structure. 5503 * @nr_vfn: number of virtual functions to be enabled. 5504 * 5505 * This function enables the PCI SR-IOV virtual functions to a physical 5506 * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to 5507 * enable the number of virtual functions to the physical function. As 5508 * not all devices support SR-IOV, the return code from the pci_enable_sriov() 5509 * API call does not considered as an error condition for most of the device. 5510 **/ 5511 int 5512 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) 5513 { 5514 struct pci_dev *pdev = phba->pcidev; 5515 uint16_t max_nr_vfn; 5516 int rc; 5517 5518 max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); 5519 if (nr_vfn > max_nr_vfn) { 5520 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 5521 "3057 Requested vfs (%d) greater than " 5522 "supported vfs (%d)", nr_vfn, max_nr_vfn); 5523 return -EINVAL; 5524 } 5525 5526 rc = pci_enable_sriov(pdev, nr_vfn); 5527 if (rc) { 5528 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5529 "2806 Failed to enable sriov on this device " 5530 "with vfn number nr_vf:%d, rc:%d\n", 5531 nr_vfn, rc); 5532 } else 5533 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5534 "2807 Successful enable sriov on this device " 5535 "with vfn number nr_vf:%d\n", nr_vfn); 5536 return rc; 5537 } 5538 5539 /** 5540 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. 5541 * @phba: pointer to lpfc hba data structure. 5542 * 5543 * This routine is invoked to set up the driver internal resources before the 5544 * device specific resource setup to support the HBA device it attached to. 5545 * 5546 * Return codes 5547 * 0 - successful 5548 * other values - error 5549 **/ 5550 static int 5551 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) 5552 { 5553 struct lpfc_sli *psli = &phba->sli; 5554 5555 /* 5556 * Driver resources common to all SLI revisions 5557 */ 5558 atomic_set(&phba->fast_event_count, 0); 5559 spin_lock_init(&phba->hbalock); 5560 5561 /* Initialize ndlp management spinlock */ 5562 spin_lock_init(&phba->ndlp_lock); 5563 5564 INIT_LIST_HEAD(&phba->port_list); 5565 INIT_LIST_HEAD(&phba->work_list); 5566 init_waitqueue_head(&phba->wait_4_mlo_m_q); 5567 5568 /* Initialize the wait queue head for the kernel thread */ 5569 init_waitqueue_head(&phba->work_waitq); 5570 5571 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 5572 "1403 Protocols supported %s %s %s\n", 5573 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? 5574 "SCSI" : " "), 5575 ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? 5576 "NVME" : " "), 5577 (phba->nvmet_support ? "NVMET" : " ")); 5578 5579 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5580 /* Initialize the scsi buffer list used by driver for scsi IO */ 5581 spin_lock_init(&phba->scsi_buf_list_get_lock); 5582 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); 5583 spin_lock_init(&phba->scsi_buf_list_put_lock); 5584 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); 5585 } 5586 5587 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && 5588 (phba->nvmet_support == 0)) { 5589 /* Initialize the NVME buffer list used by driver for NVME IO */ 5590 spin_lock_init(&phba->nvme_buf_list_get_lock); 5591 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); 5592 spin_lock_init(&phba->nvme_buf_list_put_lock); 5593 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); 5594 } 5595 5596 /* Initialize the fabric iocb list */ 5597 INIT_LIST_HEAD(&phba->fabric_iocb_list); 5598 5599 /* Initialize list to save ELS buffers */ 5600 INIT_LIST_HEAD(&phba->elsbuf); 5601 5602 /* Initialize FCF connection rec list */ 5603 INIT_LIST_HEAD(&phba->fcf_conn_rec_list); 5604 5605 /* Initialize OAS configuration list */ 5606 spin_lock_init(&phba->devicelock); 5607 INIT_LIST_HEAD(&phba->luns); 5608 5609 /* MBOX heartbeat timer */ 5610 setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); 5611 /* Fabric block timer */ 5612 setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 5613 (unsigned long)phba); 5614 /* EA polling mode timer */ 5615 setup_timer(&phba->eratt_poll, lpfc_poll_eratt, 5616 (unsigned long)phba); 5617 /* Heartbeat timer */ 5618 setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); 5619 5620 return 0; 5621 } 5622 5623 /** 5624 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev 5625 * @phba: pointer to lpfc hba data structure. 5626 * 5627 * This routine is invoked to set up the driver internal resources specific to 5628 * support the SLI-3 HBA device it attached to. 5629 * 5630 * Return codes 5631 * 0 - successful 5632 * other values - error 5633 **/ 5634 static int 5635 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) 5636 { 5637 int rc; 5638 5639 /* 5640 * Initialize timers used by driver 5641 */ 5642 5643 /* FCP polling mode timer */ 5644 setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, 5645 (unsigned long)phba); 5646 5647 /* Host attention work mask setup */ 5648 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 5649 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 5650 5651 /* Get all the module params for configuring this host */ 5652 lpfc_get_cfgparam(phba); 5653 /* Set up phase-1 common device driver resources */ 5654 5655 rc = lpfc_setup_driver_resource_phase1(phba); 5656 if (rc) 5657 return -ENODEV; 5658 5659 if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { 5660 phba->menlo_flag |= HBA_MENLO_SUPPORT; 5661 /* check for menlo minimum sg count */ 5662 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) 5663 phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; 5664 } 5665 5666 if (!phba->sli.sli3_ring) 5667 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING * 5668 sizeof(struct lpfc_sli_ring), GFP_KERNEL); 5669 if (!phba->sli.sli3_ring) 5670 return -ENOMEM; 5671 5672 /* 5673 * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size 5674 * used to create the sg_dma_buf_pool must be dynamically calculated. 5675 */ 5676 5677 /* Initialize the host templates the configured values. */ 5678 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5679 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5680 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5681 5682 /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ 5683 if (phba->cfg_enable_bg) { 5684 /* 5685 * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, 5686 * the FCP rsp, and a BDE for each. Sice we have no control 5687 * over how many protection data segments the SCSI Layer 5688 * will hand us (ie: there could be one for every block 5689 * in the IO), we just allocate enough BDEs to accomidate 5690 * our max amount and we need to limit lpfc_sg_seg_cnt to 5691 * minimize the risk of running out. 5692 */ 5693 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5694 sizeof(struct fcp_rsp) + 5695 (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); 5696 5697 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) 5698 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; 5699 5700 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ 5701 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; 5702 } else { 5703 /* 5704 * The scsi_buf for a regular I/O will hold the FCP cmnd, 5705 * the FCP rsp, a BDE for each, and a BDE for up to 5706 * cfg_sg_seg_cnt data segments. 5707 */ 5708 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5709 sizeof(struct fcp_rsp) + 5710 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); 5711 5712 /* Total BDEs in BPL for scsi_sg_list */ 5713 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5714 } 5715 5716 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5717 "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", 5718 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5719 phba->cfg_total_seg_cnt); 5720 5721 phba->max_vpi = LPFC_MAX_VPI; 5722 /* This will be set to correct value after config_port mbox */ 5723 phba->max_vports = 0; 5724 5725 /* 5726 * Initialize the SLI Layer to run with lpfc HBAs. 5727 */ 5728 lpfc_sli_setup(phba); 5729 lpfc_sli_queue_init(phba); 5730 5731 /* Allocate device driver memory */ 5732 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) 5733 return -ENOMEM; 5734 5735 /* 5736 * Enable sr-iov virtual functions if supported and configured 5737 * through the module parameter. 5738 */ 5739 if (phba->cfg_sriov_nr_virtfn > 0) { 5740 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 5741 phba->cfg_sriov_nr_virtfn); 5742 if (rc) { 5743 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 5744 "2808 Requested number of SR-IOV " 5745 "virtual functions (%d) is not " 5746 "supported\n", 5747 phba->cfg_sriov_nr_virtfn); 5748 phba->cfg_sriov_nr_virtfn = 0; 5749 } 5750 } 5751 5752 return 0; 5753 } 5754 5755 /** 5756 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev 5757 * @phba: pointer to lpfc hba data structure. 5758 * 5759 * This routine is invoked to unset the driver internal resources set up 5760 * specific for supporting the SLI-3 HBA device it attached to. 5761 **/ 5762 static void 5763 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) 5764 { 5765 /* Free device driver memory allocated */ 5766 lpfc_mem_free_all(phba); 5767 5768 return; 5769 } 5770 5771 /** 5772 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev 5773 * @phba: pointer to lpfc hba data structure. 5774 * 5775 * This routine is invoked to set up the driver internal resources specific to 5776 * support the SLI-4 HBA device it attached to. 5777 * 5778 * Return codes 5779 * 0 - successful 5780 * other values - error 5781 **/ 5782 static int 5783 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) 5784 { 5785 LPFC_MBOXQ_t *mboxq; 5786 MAILBOX_t *mb; 5787 int rc, i, max_buf_size; 5788 uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0}; 5789 struct lpfc_mqe *mqe; 5790 int longs; 5791 int fof_vectors = 0; 5792 uint64_t wwn; 5793 5794 phba->sli4_hba.num_online_cpu = num_online_cpus(); 5795 phba->sli4_hba.num_present_cpu = lpfc_present_cpu; 5796 phba->sli4_hba.curr_disp_cpu = 0; 5797 5798 /* Get all the module params for configuring this host */ 5799 lpfc_get_cfgparam(phba); 5800 5801 /* Set up phase-1 common device driver resources */ 5802 rc = lpfc_setup_driver_resource_phase1(phba); 5803 if (rc) 5804 return -ENODEV; 5805 5806 /* Before proceed, wait for POST done and device ready */ 5807 rc = lpfc_sli4_post_status_check(phba); 5808 if (rc) 5809 return -ENODEV; 5810 5811 /* 5812 * Initialize timers used by driver 5813 */ 5814 5815 setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); 5816 5817 /* FCF rediscover timer */ 5818 setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 5819 (unsigned long)phba); 5820 5821 /* 5822 * Control structure for handling external multi-buffer mailbox 5823 * command pass-through. 5824 */ 5825 memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, 5826 sizeof(struct lpfc_mbox_ext_buf_ctx)); 5827 INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); 5828 5829 phba->max_vpi = LPFC_MAX_VPI; 5830 5831 /* This will be set to correct value after the read_config mbox */ 5832 phba->max_vports = 0; 5833 5834 /* Program the default value of vlan_id and fc_map */ 5835 phba->valid_vlan = 0; 5836 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; 5837 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; 5838 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; 5839 5840 /* 5841 * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands 5842 * we will associate a new ring, for each EQ/CQ/WQ tuple. 5843 * The WQ create will allocate the ring. 5844 */ 5845 5846 /* 5847 * It doesn't matter what family our adapter is in, we are 5848 * limited to 2 Pages, 512 SGEs, for our SGL. 5849 * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp 5850 */ 5851 max_buf_size = (2 * SLI4_PAGE_SIZE); 5852 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2) 5853 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2; 5854 5855 /* 5856 * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size 5857 * used to create the sg_dma_buf_pool must be calculated. 5858 */ 5859 if (phba->cfg_enable_bg) { 5860 /* 5861 * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, 5862 * the FCP rsp, and a SGE. Sice we have no control 5863 * over how many protection segments the SCSI Layer 5864 * will hand us (ie: there could be one for every block 5865 * in the IO), just allocate enough SGEs to accomidate 5866 * our max amount and we need to limit lpfc_sg_seg_cnt 5867 * to minimize the risk of running out. 5868 */ 5869 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5870 sizeof(struct fcp_rsp) + max_buf_size; 5871 5872 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ 5873 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; 5874 5875 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) 5876 phba->cfg_sg_seg_cnt = 5877 LPFC_MAX_SG_SLI4_SEG_CNT_DIF; 5878 } else { 5879 /* 5880 * The scsi_buf for a regular I/O holds the FCP cmnd, 5881 * the FCP rsp, a SGE for each, and a SGE for up to 5882 * cfg_sg_seg_cnt data segments. 5883 */ 5884 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + 5885 sizeof(struct fcp_rsp) + 5886 ((phba->cfg_sg_seg_cnt + 2) * 5887 sizeof(struct sli4_sge)); 5888 5889 /* Total SGEs for scsi_sg_list */ 5890 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; 5891 5892 /* 5893 * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only 5894 * need to post 1 page for the SGL. 5895 */ 5896 } 5897 5898 /* Initialize the host templates with the updated values. */ 5899 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5900 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; 5901 lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; 5902 5903 if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) 5904 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; 5905 else 5906 phba->cfg_sg_dma_buf_size = 5907 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); 5908 5909 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, 5910 "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", 5911 phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, 5912 phba->cfg_total_seg_cnt); 5913 5914 /* Initialize buffer queue management fields */ 5915 INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); 5916 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; 5917 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; 5918 5919 /* 5920 * Initialize the SLI Layer to run with lpfc SLI4 HBAs. 5921 */ 5922 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { 5923 /* Initialize the Abort scsi buffer list used by driver */ 5924 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); 5925 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 5926 } 5927 5928 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 5929 /* Initialize the Abort nvme buffer list used by driver */ 5930 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); 5931 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 5932 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 5933 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_ctx_get_list); 5934 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_ctx_put_list); 5935 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); 5936 5937 /* Fast-path XRI aborted CQ Event work queue list */ 5938 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); 5939 } 5940 5941 /* This abort list used by worker thread */ 5942 spin_lock_init(&phba->sli4_hba.sgl_list_lock); 5943 spin_lock_init(&phba->sli4_hba.nvmet_ctx_get_lock); 5944 spin_lock_init(&phba->sli4_hba.nvmet_ctx_put_lock); 5945 spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); 5946 5947 /* 5948 * Initialize driver internal slow-path work queues 5949 */ 5950 5951 /* Driver internel slow-path CQ Event pool */ 5952 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); 5953 /* Response IOCB work queue list */ 5954 INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); 5955 /* Asynchronous event CQ Event work queue list */ 5956 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); 5957 /* Fast-path XRI aborted CQ Event work queue list */ 5958 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); 5959 /* Slow-path XRI aborted CQ Event work queue list */ 5960 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); 5961 /* Receive queue CQ Event work queue list */ 5962 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); 5963 5964 /* Initialize extent block lists. */ 5965 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); 5966 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); 5967 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); 5968 INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); 5969 5970 /* Initialize mboxq lists. If the early init routines fail 5971 * these lists need to be correctly initialized. 5972 */ 5973 INIT_LIST_HEAD(&phba->sli.mboxq); 5974 INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); 5975 5976 /* initialize optic_state to 0xFF */ 5977 phba->sli4_hba.lnk_info.optic_state = 0xff; 5978 5979 /* Allocate device driver memory */ 5980 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); 5981 if (rc) 5982 return -ENOMEM; 5983 5984 /* IF Type 2 ports get initialized now. */ 5985 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 5986 LPFC_SLI_INTF_IF_TYPE_2) { 5987 rc = lpfc_pci_function_reset(phba); 5988 if (unlikely(rc)) { 5989 rc = -ENODEV; 5990 goto out_free_mem; 5991 } 5992 phba->temp_sensor_support = 1; 5993 } 5994 5995 /* Create the bootstrap mailbox command */ 5996 rc = lpfc_create_bootstrap_mbox(phba); 5997 if (unlikely(rc)) 5998 goto out_free_mem; 5999 6000 /* Set up the host's endian order with the device. */ 6001 rc = lpfc_setup_endian_order(phba); 6002 if (unlikely(rc)) 6003 goto out_free_bsmbx; 6004 6005 /* Set up the hba's configuration parameters. */ 6006 rc = lpfc_sli4_read_config(phba); 6007 if (unlikely(rc)) 6008 goto out_free_bsmbx; 6009 rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); 6010 if (unlikely(rc)) 6011 goto out_free_bsmbx; 6012 6013 /* IF Type 0 ports get initialized now. */ 6014 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == 6015 LPFC_SLI_INTF_IF_TYPE_0) { 6016 rc = lpfc_pci_function_reset(phba); 6017 if (unlikely(rc)) 6018 goto out_free_bsmbx; 6019 } 6020 6021 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 6022 GFP_KERNEL); 6023 if (!mboxq) { 6024 rc = -ENOMEM; 6025 goto out_free_bsmbx; 6026 } 6027 6028 /* Check for NVMET being configured */ 6029 phba->nvmet_support = 0; 6030 if (lpfc_enable_nvmet_cnt) { 6031 6032 /* First get WWN of HBA instance */ 6033 lpfc_read_nv(phba, mboxq); 6034 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6035 if (rc != MBX_SUCCESS) { 6036 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 6037 "6016 Mailbox failed , mbxCmd x%x " 6038 "READ_NV, mbxStatus x%x\n", 6039 bf_get(lpfc_mqe_command, &mboxq->u.mqe), 6040 bf_get(lpfc_mqe_status, &mboxq->u.mqe)); 6041 mempool_free(mboxq, phba->mbox_mem_pool); 6042 rc = -EIO; 6043 goto out_free_bsmbx; 6044 } 6045 mb = &mboxq->u.mb; 6046 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, 6047 sizeof(uint64_t)); 6048 wwn = cpu_to_be64(wwn); 6049 phba->sli4_hba.wwnn.u.name = wwn; 6050 memcpy(&wwn, (char *)mb->un.varRDnvp.portname, 6051 sizeof(uint64_t)); 6052 /* wwn is WWPN of HBA instance */ 6053 wwn = cpu_to_be64(wwn); 6054 phba->sli4_hba.wwpn.u.name = wwn; 6055 6056 /* Check to see if it matches any module parameter */ 6057 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { 6058 if (wwn == lpfc_enable_nvmet[i]) { 6059 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) 6060 if (lpfc_nvmet_mem_alloc(phba)) 6061 break; 6062 6063 phba->nvmet_support = 1; /* a match */ 6064 6065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6066 "6017 NVME Target %016llx\n", 6067 wwn); 6068 #else 6069 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6070 "6021 Can't enable NVME Target." 6071 " NVME_TARGET_FC infrastructure" 6072 " is not in kernel\n"); 6073 #endif 6074 break; 6075 } 6076 } 6077 } 6078 6079 lpfc_nvme_mod_param_dep(phba); 6080 6081 /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */ 6082 lpfc_supported_pages(mboxq); 6083 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 6084 if (!rc) { 6085 mqe = &mboxq->u.mqe; 6086 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3), 6087 LPFC_MAX_SUPPORTED_PAGES); 6088 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) { 6089 switch (pn_page[i]) { 6090 case LPFC_SLI4_PARAMETERS: 6091 phba->sli4_hba.pc_sli4_params.supported = 1; 6092 break; 6093 default: 6094 break; 6095 } 6096 } 6097 /* Read the port's SLI4 Parameters capabilities if supported. */ 6098 if (phba->sli4_hba.pc_sli4_params.supported) 6099 rc = lpfc_pc_sli4_params_get(phba, mboxq); 6100 if (rc) { 6101 mempool_free(mboxq, phba->mbox_mem_pool); 6102 rc = -EIO; 6103 goto out_free_bsmbx; 6104 } 6105 } 6106 6107 /* 6108 * Get sli4 parameters that override parameters from Port capabilities. 6109 * If this call fails, it isn't critical unless the SLI4 parameters come 6110 * back in conflict. 6111 */ 6112 rc = lpfc_get_sli4_parameters(phba, mboxq); 6113 if (rc) { 6114 if (phba->sli4_hba.extents_in_use && 6115 phba->sli4_hba.rpi_hdrs_in_use) { 6116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6117 "2999 Unsupported SLI4 Parameters " 6118 "Extents and RPI headers enabled.\n"); 6119 } 6120 mempool_free(mboxq, phba->mbox_mem_pool); 6121 goto out_free_bsmbx; 6122 } 6123 6124 mempool_free(mboxq, phba->mbox_mem_pool); 6125 6126 /* Verify OAS is supported */ 6127 lpfc_sli4_oas_verify(phba); 6128 if (phba->cfg_fof) 6129 fof_vectors = 1; 6130 6131 /* Verify all the SLI4 queues */ 6132 rc = lpfc_sli4_queue_verify(phba); 6133 if (rc) 6134 goto out_free_bsmbx; 6135 6136 /* Create driver internal CQE event pool */ 6137 rc = lpfc_sli4_cq_event_pool_create(phba); 6138 if (rc) 6139 goto out_free_bsmbx; 6140 6141 /* Initialize sgl lists per host */ 6142 lpfc_init_sgl_list(phba); 6143 6144 /* Allocate and initialize active sgl array */ 6145 rc = lpfc_init_active_sgl_array(phba); 6146 if (rc) { 6147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6148 "1430 Failed to initialize sgl list.\n"); 6149 goto out_destroy_cq_event_pool; 6150 } 6151 rc = lpfc_sli4_init_rpi_hdrs(phba); 6152 if (rc) { 6153 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6154 "1432 Failed to initialize rpi headers.\n"); 6155 goto out_free_active_sgl; 6156 } 6157 6158 /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ 6159 longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; 6160 phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long), 6161 GFP_KERNEL); 6162 if (!phba->fcf.fcf_rr_bmask) { 6163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6164 "2759 Failed allocate memory for FCF round " 6165 "robin failover bmask\n"); 6166 rc = -ENOMEM; 6167 goto out_remove_rpi_hdrs; 6168 } 6169 6170 phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, 6171 sizeof(struct lpfc_hba_eq_hdl), 6172 GFP_KERNEL); 6173 if (!phba->sli4_hba.hba_eq_hdl) { 6174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6175 "2572 Failed allocate memory for " 6176 "fast-path per-EQ handle array\n"); 6177 rc = -ENOMEM; 6178 goto out_free_fcf_rr_bmask; 6179 } 6180 6181 phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, 6182 sizeof(struct lpfc_vector_map_info), 6183 GFP_KERNEL); 6184 if (!phba->sli4_hba.cpu_map) { 6185 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6186 "3327 Failed allocate memory for msi-x " 6187 "interrupt vector mapping\n"); 6188 rc = -ENOMEM; 6189 goto out_free_hba_eq_hdl; 6190 } 6191 if (lpfc_used_cpu == NULL) { 6192 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), 6193 GFP_KERNEL); 6194 if (!lpfc_used_cpu) { 6195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6196 "3335 Failed allocate memory for msi-x " 6197 "interrupt vector mapping\n"); 6198 kfree(phba->sli4_hba.cpu_map); 6199 rc = -ENOMEM; 6200 goto out_free_hba_eq_hdl; 6201 } 6202 for (i = 0; i < lpfc_present_cpu; i++) 6203 lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; 6204 } 6205 6206 /* 6207 * Enable sr-iov virtual functions if supported and configured 6208 * through the module parameter. 6209 */ 6210 if (phba->cfg_sriov_nr_virtfn > 0) { 6211 rc = lpfc_sli_probe_sriov_nr_virtfn(phba, 6212 phba->cfg_sriov_nr_virtfn); 6213 if (rc) { 6214 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6215 "3020 Requested number of SR-IOV " 6216 "virtual functions (%d) is not " 6217 "supported\n", 6218 phba->cfg_sriov_nr_virtfn); 6219 phba->cfg_sriov_nr_virtfn = 0; 6220 } 6221 } 6222 6223 return 0; 6224 6225 out_free_hba_eq_hdl: 6226 kfree(phba->sli4_hba.hba_eq_hdl); 6227 out_free_fcf_rr_bmask: 6228 kfree(phba->fcf.fcf_rr_bmask); 6229 out_remove_rpi_hdrs: 6230 lpfc_sli4_remove_rpi_hdrs(phba); 6231 out_free_active_sgl: 6232 lpfc_free_active_sgl(phba); 6233 out_destroy_cq_event_pool: 6234 lpfc_sli4_cq_event_pool_destroy(phba); 6235 out_free_bsmbx: 6236 lpfc_destroy_bootstrap_mbox(phba); 6237 out_free_mem: 6238 lpfc_mem_free(phba); 6239 return rc; 6240 } 6241 6242 /** 6243 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev 6244 * @phba: pointer to lpfc hba data structure. 6245 * 6246 * This routine is invoked to unset the driver internal resources set up 6247 * specific for supporting the SLI-4 HBA device it attached to. 6248 **/ 6249 static void 6250 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) 6251 { 6252 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; 6253 6254 /* Free memory allocated for msi-x interrupt vector to CPU mapping */ 6255 kfree(phba->sli4_hba.cpu_map); 6256 phba->sli4_hba.num_present_cpu = 0; 6257 phba->sli4_hba.num_online_cpu = 0; 6258 phba->sli4_hba.curr_disp_cpu = 0; 6259 6260 /* Free memory allocated for fast-path work queue handles */ 6261 kfree(phba->sli4_hba.hba_eq_hdl); 6262 6263 /* Free the allocated rpi headers. */ 6264 lpfc_sli4_remove_rpi_hdrs(phba); 6265 lpfc_sli4_remove_rpis(phba); 6266 6267 /* Free eligible FCF index bmask */ 6268 kfree(phba->fcf.fcf_rr_bmask); 6269 6270 /* Free the ELS sgl list */ 6271 lpfc_free_active_sgl(phba); 6272 lpfc_free_els_sgl_list(phba); 6273 lpfc_free_nvmet_sgl_list(phba); 6274 6275 /* Free the completion queue EQ event pool */ 6276 lpfc_sli4_cq_event_release_all(phba); 6277 lpfc_sli4_cq_event_pool_destroy(phba); 6278 6279 /* Release resource identifiers. */ 6280 lpfc_sli4_dealloc_resource_identifiers(phba); 6281 6282 /* Free the bsmbx region. */ 6283 lpfc_destroy_bootstrap_mbox(phba); 6284 6285 /* Free the SLI Layer memory with SLI4 HBAs */ 6286 lpfc_mem_free_all(phba); 6287 6288 /* Free the current connect table */ 6289 list_for_each_entry_safe(conn_entry, next_conn_entry, 6290 &phba->fcf_conn_rec_list, list) { 6291 list_del_init(&conn_entry->list); 6292 kfree(conn_entry); 6293 } 6294 6295 return; 6296 } 6297 6298 /** 6299 * lpfc_init_api_table_setup - Set up init api function jump table 6300 * @phba: The hba struct for which this call is being executed. 6301 * @dev_grp: The HBA PCI-Device group number. 6302 * 6303 * This routine sets up the device INIT interface API function jump table 6304 * in @phba struct. 6305 * 6306 * Returns: 0 - success, -ENODEV - failure. 6307 **/ 6308 int 6309 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) 6310 { 6311 phba->lpfc_hba_init_link = lpfc_hba_init_link; 6312 phba->lpfc_hba_down_link = lpfc_hba_down_link; 6313 phba->lpfc_selective_reset = lpfc_selective_reset; 6314 switch (dev_grp) { 6315 case LPFC_PCI_DEV_LP: 6316 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; 6317 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; 6318 phba->lpfc_stop_port = lpfc_stop_port_s3; 6319 break; 6320 case LPFC_PCI_DEV_OC: 6321 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; 6322 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; 6323 phba->lpfc_stop_port = lpfc_stop_port_s4; 6324 break; 6325 default: 6326 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6327 "1431 Invalid HBA PCI-device group: 0x%x\n", 6328 dev_grp); 6329 return -ENODEV; 6330 break; 6331 } 6332 return 0; 6333 } 6334 6335 /** 6336 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. 6337 * @phba: pointer to lpfc hba data structure. 6338 * 6339 * This routine is invoked to set up the driver internal resources after the 6340 * device specific resource setup to support the HBA device it attached to. 6341 * 6342 * Return codes 6343 * 0 - successful 6344 * other values - error 6345 **/ 6346 static int 6347 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) 6348 { 6349 int error; 6350 6351 /* Startup the kernel thread for this host adapter. */ 6352 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6353 "lpfc_worker_%d", phba->brd_no); 6354 if (IS_ERR(phba->worker_thread)) { 6355 error = PTR_ERR(phba->worker_thread); 6356 return error; 6357 } 6358 6359 return 0; 6360 } 6361 6362 /** 6363 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. 6364 * @phba: pointer to lpfc hba data structure. 6365 * 6366 * This routine is invoked to unset the driver internal resources set up after 6367 * the device specific resource setup for supporting the HBA device it 6368 * attached to. 6369 **/ 6370 static void 6371 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) 6372 { 6373 /* Stop kernel worker thread */ 6374 kthread_stop(phba->worker_thread); 6375 } 6376 6377 /** 6378 * lpfc_free_iocb_list - Free iocb list. 6379 * @phba: pointer to lpfc hba data structure. 6380 * 6381 * This routine is invoked to free the driver's IOCB list and memory. 6382 **/ 6383 void 6384 lpfc_free_iocb_list(struct lpfc_hba *phba) 6385 { 6386 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; 6387 6388 spin_lock_irq(&phba->hbalock); 6389 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6390 &phba->lpfc_iocb_list, list) { 6391 list_del(&iocbq_entry->list); 6392 kfree(iocbq_entry); 6393 phba->total_iocbq_bufs--; 6394 } 6395 spin_unlock_irq(&phba->hbalock); 6396 6397 return; 6398 } 6399 6400 /** 6401 * lpfc_init_iocb_list - Allocate and initialize iocb list. 6402 * @phba: pointer to lpfc hba data structure. 6403 * 6404 * This routine is invoked to allocate and initizlize the driver's IOCB 6405 * list and set up the IOCB tag array accordingly. 6406 * 6407 * Return codes 6408 * 0 - successful 6409 * other values - error 6410 **/ 6411 int 6412 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) 6413 { 6414 struct lpfc_iocbq *iocbq_entry = NULL; 6415 uint16_t iotag; 6416 int i; 6417 6418 /* Initialize and populate the iocb list per host. */ 6419 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6420 for (i = 0; i < iocb_count; i++) { 6421 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); 6422 if (iocbq_entry == NULL) { 6423 printk(KERN_ERR "%s: only allocated %d iocbs of " 6424 "expected %d count. Unloading driver.\n", 6425 __func__, i, LPFC_IOCB_LIST_CNT); 6426 goto out_free_iocbq; 6427 } 6428 6429 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6430 if (iotag == 0) { 6431 kfree(iocbq_entry); 6432 printk(KERN_ERR "%s: failed to allocate IOTAG. " 6433 "Unloading driver.\n", __func__); 6434 goto out_free_iocbq; 6435 } 6436 iocbq_entry->sli4_lxritag = NO_XRI; 6437 iocbq_entry->sli4_xritag = NO_XRI; 6438 6439 spin_lock_irq(&phba->hbalock); 6440 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6441 phba->total_iocbq_bufs++; 6442 spin_unlock_irq(&phba->hbalock); 6443 } 6444 6445 return 0; 6446 6447 out_free_iocbq: 6448 lpfc_free_iocb_list(phba); 6449 6450 return -ENOMEM; 6451 } 6452 6453 /** 6454 * lpfc_free_sgl_list - Free a given sgl list. 6455 * @phba: pointer to lpfc hba data structure. 6456 * @sglq_list: pointer to the head of sgl list. 6457 * 6458 * This routine is invoked to free a give sgl list and memory. 6459 **/ 6460 void 6461 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) 6462 { 6463 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6464 6465 list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { 6466 list_del(&sglq_entry->list); 6467 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); 6468 kfree(sglq_entry); 6469 } 6470 } 6471 6472 /** 6473 * lpfc_free_els_sgl_list - Free els sgl list. 6474 * @phba: pointer to lpfc hba data structure. 6475 * 6476 * This routine is invoked to free the driver's els sgl list and memory. 6477 **/ 6478 static void 6479 lpfc_free_els_sgl_list(struct lpfc_hba *phba) 6480 { 6481 LIST_HEAD(sglq_list); 6482 6483 /* Retrieve all els sgls from driver list */ 6484 spin_lock_irq(&phba->hbalock); 6485 spin_lock(&phba->sli4_hba.sgl_list_lock); 6486 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); 6487 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6488 spin_unlock_irq(&phba->hbalock); 6489 6490 /* Now free the sgl list */ 6491 lpfc_free_sgl_list(phba, &sglq_list); 6492 } 6493 6494 /** 6495 * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. 6496 * @phba: pointer to lpfc hba data structure. 6497 * 6498 * This routine is invoked to free the driver's nvmet sgl list and memory. 6499 **/ 6500 static void 6501 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) 6502 { 6503 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; 6504 LIST_HEAD(sglq_list); 6505 6506 /* Retrieve all nvmet sgls from driver list */ 6507 spin_lock_irq(&phba->hbalock); 6508 spin_lock(&phba->sli4_hba.sgl_list_lock); 6509 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); 6510 spin_unlock(&phba->sli4_hba.sgl_list_lock); 6511 spin_unlock_irq(&phba->hbalock); 6512 6513 /* Now free the sgl list */ 6514 list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { 6515 list_del(&sglq_entry->list); 6516 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); 6517 kfree(sglq_entry); 6518 } 6519 } 6520 6521 /** 6522 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. 6523 * @phba: pointer to lpfc hba data structure. 6524 * 6525 * This routine is invoked to allocate the driver's active sgl memory. 6526 * This array will hold the sglq_entry's for active IOs. 6527 **/ 6528 static int 6529 lpfc_init_active_sgl_array(struct lpfc_hba *phba) 6530 { 6531 int size; 6532 size = sizeof(struct lpfc_sglq *); 6533 size *= phba->sli4_hba.max_cfg_param.max_xri; 6534 6535 phba->sli4_hba.lpfc_sglq_active_list = 6536 kzalloc(size, GFP_KERNEL); 6537 if (!phba->sli4_hba.lpfc_sglq_active_list) 6538 return -ENOMEM; 6539 return 0; 6540 } 6541 6542 /** 6543 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. 6544 * @phba: pointer to lpfc hba data structure. 6545 * 6546 * This routine is invoked to walk through the array of active sglq entries 6547 * and free all of the resources. 6548 * This is just a place holder for now. 6549 **/ 6550 static void 6551 lpfc_free_active_sgl(struct lpfc_hba *phba) 6552 { 6553 kfree(phba->sli4_hba.lpfc_sglq_active_list); 6554 } 6555 6556 /** 6557 * lpfc_init_sgl_list - Allocate and initialize sgl list. 6558 * @phba: pointer to lpfc hba data structure. 6559 * 6560 * This routine is invoked to allocate and initizlize the driver's sgl 6561 * list and set up the sgl xritag tag array accordingly. 6562 * 6563 **/ 6564 static void 6565 lpfc_init_sgl_list(struct lpfc_hba *phba) 6566 { 6567 /* Initialize and populate the sglq list per host/VF. */ 6568 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); 6569 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); 6570 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); 6571 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 6572 6573 /* els xri-sgl book keeping */ 6574 phba->sli4_hba.els_xri_cnt = 0; 6575 6576 /* scsi xri-buffer book keeping */ 6577 phba->sli4_hba.scsi_xri_cnt = 0; 6578 6579 /* nvme xri-buffer book keeping */ 6580 phba->sli4_hba.nvme_xri_cnt = 0; 6581 } 6582 6583 /** 6584 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port 6585 * @phba: pointer to lpfc hba data structure. 6586 * 6587 * This routine is invoked to post rpi header templates to the 6588 * port for those SLI4 ports that do not support extents. This routine 6589 * posts a PAGE_SIZE memory region to the port to hold up to 6590 * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine 6591 * and should be called only when interrupts are disabled. 6592 * 6593 * Return codes 6594 * 0 - successful 6595 * -ERROR - otherwise. 6596 **/ 6597 int 6598 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) 6599 { 6600 int rc = 0; 6601 struct lpfc_rpi_hdr *rpi_hdr; 6602 6603 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); 6604 if (!phba->sli4_hba.rpi_hdrs_in_use) 6605 return rc; 6606 if (phba->sli4_hba.extents_in_use) 6607 return -EIO; 6608 6609 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); 6610 if (!rpi_hdr) { 6611 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, 6612 "0391 Error during rpi post operation\n"); 6613 lpfc_sli4_remove_rpis(phba); 6614 rc = -ENODEV; 6615 } 6616 6617 return rc; 6618 } 6619 6620 /** 6621 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region 6622 * @phba: pointer to lpfc hba data structure. 6623 * 6624 * This routine is invoked to allocate a single 4KB memory region to 6625 * support rpis and stores them in the phba. This single region 6626 * provides support for up to 64 rpis. The region is used globally 6627 * by the device. 6628 * 6629 * Returns: 6630 * A valid rpi hdr on success. 6631 * A NULL pointer on any failure. 6632 **/ 6633 struct lpfc_rpi_hdr * 6634 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) 6635 { 6636 uint16_t rpi_limit, curr_rpi_range; 6637 struct lpfc_dmabuf *dmabuf; 6638 struct lpfc_rpi_hdr *rpi_hdr; 6639 6640 /* 6641 * If the SLI4 port supports extents, posting the rpi header isn't 6642 * required. Set the expected maximum count and let the actual value 6643 * get set when extents are fully allocated. 6644 */ 6645 if (!phba->sli4_hba.rpi_hdrs_in_use) 6646 return NULL; 6647 if (phba->sli4_hba.extents_in_use) 6648 return NULL; 6649 6650 /* The limit on the logical index is just the max_rpi count. */ 6651 rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; 6652 6653 spin_lock_irq(&phba->hbalock); 6654 /* 6655 * Establish the starting RPI in this header block. The starting 6656 * rpi is normalized to a zero base because the physical rpi is 6657 * port based. 6658 */ 6659 curr_rpi_range = phba->sli4_hba.next_rpi; 6660 spin_unlock_irq(&phba->hbalock); 6661 6662 /* Reached full RPI range */ 6663 if (curr_rpi_range == rpi_limit) 6664 return NULL; 6665 6666 /* 6667 * First allocate the protocol header region for the port. The 6668 * port expects a 4KB DMA-mapped memory region that is 4K aligned. 6669 */ 6670 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 6671 if (!dmabuf) 6672 return NULL; 6673 6674 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, 6675 LPFC_HDR_TEMPLATE_SIZE, 6676 &dmabuf->phys, GFP_KERNEL); 6677 if (!dmabuf->virt) { 6678 rpi_hdr = NULL; 6679 goto err_free_dmabuf; 6680 } 6681 6682 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { 6683 rpi_hdr = NULL; 6684 goto err_free_coherent; 6685 } 6686 6687 /* Save the rpi header data for cleanup later. */ 6688 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); 6689 if (!rpi_hdr) 6690 goto err_free_coherent; 6691 6692 rpi_hdr->dmabuf = dmabuf; 6693 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; 6694 rpi_hdr->page_count = 1; 6695 spin_lock_irq(&phba->hbalock); 6696 6697 /* The rpi_hdr stores the logical index only. */ 6698 rpi_hdr->start_rpi = curr_rpi_range; 6699 rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; 6700 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); 6701 6702 spin_unlock_irq(&phba->hbalock); 6703 return rpi_hdr; 6704 6705 err_free_coherent: 6706 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, 6707 dmabuf->virt, dmabuf->phys); 6708 err_free_dmabuf: 6709 kfree(dmabuf); 6710 return NULL; 6711 } 6712 6713 /** 6714 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions 6715 * @phba: pointer to lpfc hba data structure. 6716 * 6717 * This routine is invoked to remove all memory resources allocated 6718 * to support rpis for SLI4 ports not supporting extents. This routine 6719 * presumes the caller has released all rpis consumed by fabric or port 6720 * logins and is prepared to have the header pages removed. 6721 **/ 6722 void 6723 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) 6724 { 6725 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; 6726 6727 if (!phba->sli4_hba.rpi_hdrs_in_use) 6728 goto exit; 6729 6730 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, 6731 &phba->sli4_hba.lpfc_rpi_hdr_list, list) { 6732 list_del(&rpi_hdr->list); 6733 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, 6734 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); 6735 kfree(rpi_hdr->dmabuf); 6736 kfree(rpi_hdr); 6737 } 6738 exit: 6739 /* There are no rpis available to the port now. */ 6740 phba->sli4_hba.next_rpi = 0; 6741 } 6742 6743 /** 6744 * lpfc_hba_alloc - Allocate driver hba data structure for a device. 6745 * @pdev: pointer to pci device data structure. 6746 * 6747 * This routine is invoked to allocate the driver hba data structure for an 6748 * HBA device. If the allocation is successful, the phba reference to the 6749 * PCI device data structure is set. 6750 * 6751 * Return codes 6752 * pointer to @phba - successful 6753 * NULL - error 6754 **/ 6755 static struct lpfc_hba * 6756 lpfc_hba_alloc(struct pci_dev *pdev) 6757 { 6758 struct lpfc_hba *phba; 6759 6760 /* Allocate memory for HBA structure */ 6761 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); 6762 if (!phba) { 6763 dev_err(&pdev->dev, "failed to allocate hba struct\n"); 6764 return NULL; 6765 } 6766 6767 /* Set reference to PCI device in HBA structure */ 6768 phba->pcidev = pdev; 6769 6770 /* Assign an unused board number */ 6771 phba->brd_no = lpfc_get_instance(); 6772 if (phba->brd_no < 0) { 6773 kfree(phba); 6774 return NULL; 6775 } 6776 phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; 6777 6778 spin_lock_init(&phba->ct_ev_lock); 6779 INIT_LIST_HEAD(&phba->ct_ev_waiters); 6780 6781 return phba; 6782 } 6783 6784 /** 6785 * lpfc_hba_free - Free driver hba data structure with a device. 6786 * @phba: pointer to lpfc hba data structure. 6787 * 6788 * This routine is invoked to free the driver hba data structure with an 6789 * HBA device. 6790 **/ 6791 static void 6792 lpfc_hba_free(struct lpfc_hba *phba) 6793 { 6794 /* Release the driver assigned board number */ 6795 idr_remove(&lpfc_hba_index, phba->brd_no); 6796 6797 /* Free memory allocated with sli3 rings */ 6798 kfree(phba->sli.sli3_ring); 6799 phba->sli.sli3_ring = NULL; 6800 6801 kfree(phba); 6802 return; 6803 } 6804 6805 /** 6806 * lpfc_create_shost - Create hba physical port with associated scsi host. 6807 * @phba: pointer to lpfc hba data structure. 6808 * 6809 * This routine is invoked to create HBA physical port and associate a SCSI 6810 * host with it. 6811 * 6812 * Return codes 6813 * 0 - successful 6814 * other values - error 6815 **/ 6816 static int 6817 lpfc_create_shost(struct lpfc_hba *phba) 6818 { 6819 struct lpfc_vport *vport; 6820 struct Scsi_Host *shost; 6821 6822 /* Initialize HBA FC structure */ 6823 phba->fc_edtov = FF_DEF_EDTOV; 6824 phba->fc_ratov = FF_DEF_RATOV; 6825 phba->fc_altov = FF_DEF_ALTOV; 6826 phba->fc_arbtov = FF_DEF_ARBTOV; 6827 6828 atomic_set(&phba->sdev_cnt, 0); 6829 atomic_set(&phba->fc4ScsiInputRequests, 0); 6830 atomic_set(&phba->fc4ScsiOutputRequests, 0); 6831 atomic_set(&phba->fc4ScsiControlRequests, 0); 6832 atomic_set(&phba->fc4ScsiIoCmpls, 0); 6833 atomic_set(&phba->fc4NvmeInputRequests, 0); 6834 atomic_set(&phba->fc4NvmeOutputRequests, 0); 6835 atomic_set(&phba->fc4NvmeControlRequests, 0); 6836 atomic_set(&phba->fc4NvmeIoCmpls, 0); 6837 atomic_set(&phba->fc4NvmeLsRequests, 0); 6838 atomic_set(&phba->fc4NvmeLsCmpls, 0); 6839 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6840 if (!vport) 6841 return -ENODEV; 6842 6843 shost = lpfc_shost_from_vport(vport); 6844 phba->pport = vport; 6845 6846 if (phba->nvmet_support) { 6847 /* Only 1 vport (pport) will support NVME target */ 6848 if (phba->txrdy_payload_pool == NULL) { 6849 phba->txrdy_payload_pool = pci_pool_create( 6850 "txrdy_pool", phba->pcidev, 6851 TXRDY_PAYLOAD_LEN, 16, 0); 6852 if (phba->txrdy_payload_pool) { 6853 phba->targetport = NULL; 6854 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; 6855 lpfc_printf_log(phba, KERN_INFO, 6856 LOG_INIT | LOG_NVME_DISC, 6857 "6076 NVME Target Found\n"); 6858 } 6859 } 6860 } 6861 6862 lpfc_debugfs_initialize(vport); 6863 /* Put reference to SCSI host to driver's device private data */ 6864 pci_set_drvdata(phba->pcidev, shost); 6865 6866 /* 6867 * At this point we are fully registered with PSA. In addition, 6868 * any initial discovery should be completed. 6869 */ 6870 vport->load_flag |= FC_ALLOW_FDMI; 6871 if (phba->cfg_enable_SmartSAN || 6872 (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { 6873 6874 /* Setup appropriate attribute masks */ 6875 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; 6876 if (phba->cfg_enable_SmartSAN) 6877 vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; 6878 else 6879 vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; 6880 } 6881 return 0; 6882 } 6883 6884 /** 6885 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. 6886 * @phba: pointer to lpfc hba data structure. 6887 * 6888 * This routine is invoked to destroy HBA physical port and the associated 6889 * SCSI host. 6890 **/ 6891 static void 6892 lpfc_destroy_shost(struct lpfc_hba *phba) 6893 { 6894 struct lpfc_vport *vport = phba->pport; 6895 6896 /* Destroy physical port that associated with the SCSI host */ 6897 destroy_port(vport); 6898 6899 return; 6900 } 6901 6902 /** 6903 * lpfc_setup_bg - Setup Block guard structures and debug areas. 6904 * @phba: pointer to lpfc hba data structure. 6905 * @shost: the shost to be used to detect Block guard settings. 6906 * 6907 * This routine sets up the local Block guard protocol settings for @shost. 6908 * This routine also allocates memory for debugging bg buffers. 6909 **/ 6910 static void 6911 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) 6912 { 6913 uint32_t old_mask; 6914 uint32_t old_guard; 6915 6916 int pagecnt = 10; 6917 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6919 "1478 Registering BlockGuard with the " 6920 "SCSI layer\n"); 6921 6922 old_mask = phba->cfg_prot_mask; 6923 old_guard = phba->cfg_prot_guard; 6924 6925 /* Only allow supported values */ 6926 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | 6927 SHOST_DIX_TYPE0_PROTECTION | 6928 SHOST_DIX_TYPE1_PROTECTION); 6929 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | 6930 SHOST_DIX_GUARD_CRC); 6931 6932 /* DIF Type 1 protection for profiles AST1/C1 is end to end */ 6933 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) 6934 phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; 6935 6936 if (phba->cfg_prot_mask && phba->cfg_prot_guard) { 6937 if ((old_mask != phba->cfg_prot_mask) || 6938 (old_guard != phba->cfg_prot_guard)) 6939 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6940 "1475 Registering BlockGuard with the " 6941 "SCSI layer: mask %d guard %d\n", 6942 phba->cfg_prot_mask, 6943 phba->cfg_prot_guard); 6944 6945 scsi_host_set_prot(shost, phba->cfg_prot_mask); 6946 scsi_host_set_guard(shost, phba->cfg_prot_guard); 6947 } else 6948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6949 "1479 Not Registering BlockGuard with the SCSI " 6950 "layer, Bad protection parameters: %d %d\n", 6951 old_mask, old_guard); 6952 } 6953 6954 if (!_dump_buf_data) { 6955 while (pagecnt) { 6956 spin_lock_init(&_dump_buf_lock); 6957 _dump_buf_data = 6958 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6959 if (_dump_buf_data) { 6960 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6961 "9043 BLKGRD: allocated %d pages for " 6962 "_dump_buf_data at 0x%p\n", 6963 (1 << pagecnt), _dump_buf_data); 6964 _dump_buf_data_order = pagecnt; 6965 memset(_dump_buf_data, 0, 6966 ((1 << PAGE_SHIFT) << pagecnt)); 6967 break; 6968 } else 6969 --pagecnt; 6970 } 6971 if (!_dump_buf_data_order) 6972 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6973 "9044 BLKGRD: ERROR unable to allocate " 6974 "memory for hexdump\n"); 6975 } else 6976 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6977 "9045 BLKGRD: already allocated _dump_buf_data=0x%p" 6978 "\n", _dump_buf_data); 6979 if (!_dump_buf_dif) { 6980 while (pagecnt) { 6981 _dump_buf_dif = 6982 (char *) __get_free_pages(GFP_KERNEL, pagecnt); 6983 if (_dump_buf_dif) { 6984 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6985 "9046 BLKGRD: allocated %d pages for " 6986 "_dump_buf_dif at 0x%p\n", 6987 (1 << pagecnt), _dump_buf_dif); 6988 _dump_buf_dif_order = pagecnt; 6989 memset(_dump_buf_dif, 0, 6990 ((1 << PAGE_SHIFT) << pagecnt)); 6991 break; 6992 } else 6993 --pagecnt; 6994 } 6995 if (!_dump_buf_dif_order) 6996 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 6997 "9047 BLKGRD: ERROR unable to allocate " 6998 "memory for hexdump\n"); 6999 } else 7000 lpfc_printf_log(phba, KERN_ERR, LOG_BG, 7001 "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", 7002 _dump_buf_dif); 7003 } 7004 7005 /** 7006 * lpfc_post_init_setup - Perform necessary device post initialization setup. 7007 * @phba: pointer to lpfc hba data structure. 7008 * 7009 * This routine is invoked to perform all the necessary post initialization 7010 * setup for the device. 7011 **/ 7012 static void 7013 lpfc_post_init_setup(struct lpfc_hba *phba) 7014 { 7015 struct Scsi_Host *shost; 7016 struct lpfc_adapter_event_header adapter_event; 7017 7018 /* Get the default values for Model Name and Description */ 7019 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 7020 7021 /* 7022 * hba setup may have changed the hba_queue_depth so we need to 7023 * adjust the value of can_queue. 7024 */ 7025 shost = pci_get_drvdata(phba->pcidev); 7026 shost->can_queue = phba->cfg_hba_queue_depth - 10; 7027 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) 7028 lpfc_setup_bg(phba, shost); 7029 7030 lpfc_host_attrib_init(shost); 7031 7032 if (phba->cfg_poll & DISABLE_FCP_RING_INT) { 7033 spin_lock_irq(shost->host_lock); 7034 lpfc_poll_start_timer(phba); 7035 spin_unlock_irq(shost->host_lock); 7036 } 7037 7038 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7039 "0428 Perform SCSI scan\n"); 7040 /* Send board arrival event to upper layer */ 7041 adapter_event.event_type = FC_REG_ADAPTER_EVENT; 7042 adapter_event.subcategory = LPFC_EVENT_ARRIVAL; 7043 fc_host_post_vendor_event(shost, fc_get_event_number(), 7044 sizeof(adapter_event), 7045 (char *) &adapter_event, 7046 LPFC_NL_VENDOR_ID); 7047 return; 7048 } 7049 7050 /** 7051 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. 7052 * @phba: pointer to lpfc hba data structure. 7053 * 7054 * This routine is invoked to set up the PCI device memory space for device 7055 * with SLI-3 interface spec. 7056 * 7057 * Return codes 7058 * 0 - successful 7059 * other values - error 7060 **/ 7061 static int 7062 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) 7063 { 7064 struct pci_dev *pdev; 7065 unsigned long bar0map_len, bar2map_len; 7066 int i, hbq_count; 7067 void *ptr; 7068 int error = -ENODEV; 7069 7070 /* Obtain PCI device reference */ 7071 if (!phba->pcidev) 7072 return error; 7073 else 7074 pdev = phba->pcidev; 7075 7076 /* Set the device DMA mask size */ 7077 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 7078 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 7079 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 7080 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 7081 return error; 7082 } 7083 } 7084 7085 /* Get the bus address of Bar0 and Bar2 and the number of bytes 7086 * required by each mapping. 7087 */ 7088 phba->pci_bar0_map = pci_resource_start(pdev, 0); 7089 bar0map_len = pci_resource_len(pdev, 0); 7090 7091 phba->pci_bar2_map = pci_resource_start(pdev, 2); 7092 bar2map_len = pci_resource_len(pdev, 2); 7093 7094 /* Map HBA SLIM to a kernel virtual address. */ 7095 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 7096 if (!phba->slim_memmap_p) { 7097 dev_printk(KERN_ERR, &pdev->dev, 7098 "ioremap failed for SLIM memory.\n"); 7099 goto out; 7100 } 7101 7102 /* Map HBA Control Registers to a kernel virtual address. */ 7103 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); 7104 if (!phba->ctrl_regs_memmap_p) { 7105 dev_printk(KERN_ERR, &pdev->dev, 7106 "ioremap failed for HBA control registers.\n"); 7107 goto out_iounmap_slim; 7108 } 7109 7110 /* Allocate memory for SLI-2 structures */ 7111 phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7112 &phba->slim2p.phys, GFP_KERNEL); 7113 if (!phba->slim2p.virt) 7114 goto out_iounmap; 7115 7116 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 7117 phba->mbox_ext = (phba->slim2p.virt + 7118 offsetof(struct lpfc_sli2_slim, mbx_ext_words)); 7119 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); 7120 phba->IOCBs = (phba->slim2p.virt + 7121 offsetof(struct lpfc_sli2_slim, IOCBs)); 7122 7123 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, 7124 lpfc_sli_hbq_size(), 7125 &phba->hbqslimp.phys, 7126 GFP_KERNEL); 7127 if (!phba->hbqslimp.virt) 7128 goto out_free_slim; 7129 7130 hbq_count = lpfc_sli_hbq_count(); 7131 ptr = phba->hbqslimp.virt; 7132 for (i = 0; i < hbq_count; ++i) { 7133 phba->hbqs[i].hbq_virt = ptr; 7134 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 7135 ptr += (lpfc_hbq_defs[i]->entry_count * 7136 sizeof(struct lpfc_hbq_entry)); 7137 } 7138 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 7139 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 7140 7141 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 7142 7143 phba->MBslimaddr = phba->slim_memmap_p; 7144 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 7145 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 7146 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 7147 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 7148 7149 return 0; 7150 7151 out_free_slim: 7152 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7153 phba->slim2p.virt, phba->slim2p.phys); 7154 out_iounmap: 7155 iounmap(phba->ctrl_regs_memmap_p); 7156 out_iounmap_slim: 7157 iounmap(phba->slim_memmap_p); 7158 out: 7159 return error; 7160 } 7161 7162 /** 7163 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. 7164 * @phba: pointer to lpfc hba data structure. 7165 * 7166 * This routine is invoked to unset the PCI device memory space for device 7167 * with SLI-3 interface spec. 7168 **/ 7169 static void 7170 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) 7171 { 7172 struct pci_dev *pdev; 7173 7174 /* Obtain PCI device reference */ 7175 if (!phba->pcidev) 7176 return; 7177 else 7178 pdev = phba->pcidev; 7179 7180 /* Free coherent DMA memory allocated */ 7181 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 7182 phba->hbqslimp.virt, phba->hbqslimp.phys); 7183 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 7184 phba->slim2p.virt, phba->slim2p.phys); 7185 7186 /* I/O memory unmap */ 7187 iounmap(phba->ctrl_regs_memmap_p); 7188 iounmap(phba->slim_memmap_p); 7189 7190 return; 7191 } 7192 7193 /** 7194 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status 7195 * @phba: pointer to lpfc hba data structure. 7196 * 7197 * This routine is invoked to wait for SLI4 device Power On Self Test (POST) 7198 * done and check status. 7199 * 7200 * Return 0 if successful, otherwise -ENODEV. 7201 **/ 7202 int 7203 lpfc_sli4_post_status_check(struct lpfc_hba *phba) 7204 { 7205 struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; 7206 struct lpfc_register reg_data; 7207 int i, port_error = 0; 7208 uint32_t if_type; 7209 7210 memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); 7211 memset(®_data, 0, sizeof(reg_data)); 7212 if (!phba->sli4_hba.PSMPHRregaddr) 7213 return -ENODEV; 7214 7215 /* Wait up to 30 seconds for the SLI Port POST done and ready */ 7216 for (i = 0; i < 3000; i++) { 7217 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, 7218 &portsmphr_reg.word0) || 7219 (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { 7220 /* Port has a fatal POST error, break out */ 7221 port_error = -ENODEV; 7222 break; 7223 } 7224 if (LPFC_POST_STAGE_PORT_READY == 7225 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) 7226 break; 7227 msleep(10); 7228 } 7229 7230 /* 7231 * If there was a port error during POST, then don't proceed with 7232 * other register reads as the data may not be valid. Just exit. 7233 */ 7234 if (port_error) { 7235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7236 "1408 Port Failed POST - portsmphr=0x%x, " 7237 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " 7238 "scr2=x%x, hscratch=x%x, pstatus=x%x\n", 7239 portsmphr_reg.word0, 7240 bf_get(lpfc_port_smphr_perr, &portsmphr_reg), 7241 bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), 7242 bf_get(lpfc_port_smphr_nip, &portsmphr_reg), 7243 bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), 7244 bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), 7245 bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), 7246 bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), 7247 bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); 7248 } else { 7249 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 7250 "2534 Device Info: SLIFamily=0x%x, " 7251 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " 7252 "SLIHint_2=0x%x, FT=0x%x\n", 7253 bf_get(lpfc_sli_intf_sli_family, 7254 &phba->sli4_hba.sli_intf), 7255 bf_get(lpfc_sli_intf_slirev, 7256 &phba->sli4_hba.sli_intf), 7257 bf_get(lpfc_sli_intf_if_type, 7258 &phba->sli4_hba.sli_intf), 7259 bf_get(lpfc_sli_intf_sli_hint1, 7260 &phba->sli4_hba.sli_intf), 7261 bf_get(lpfc_sli_intf_sli_hint2, 7262 &phba->sli4_hba.sli_intf), 7263 bf_get(lpfc_sli_intf_func_type, 7264 &phba->sli4_hba.sli_intf)); 7265 /* 7266 * Check for other Port errors during the initialization 7267 * process. Fail the load if the port did not come up 7268 * correctly. 7269 */ 7270 if_type = bf_get(lpfc_sli_intf_if_type, 7271 &phba->sli4_hba.sli_intf); 7272 switch (if_type) { 7273 case LPFC_SLI_INTF_IF_TYPE_0: 7274 phba->sli4_hba.ue_mask_lo = 7275 readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); 7276 phba->sli4_hba.ue_mask_hi = 7277 readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); 7278 uerrlo_reg.word0 = 7279 readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); 7280 uerrhi_reg.word0 = 7281 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); 7282 if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || 7283 (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { 7284 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7285 "1422 Unrecoverable Error " 7286 "Detected during POST " 7287 "uerr_lo_reg=0x%x, " 7288 "uerr_hi_reg=0x%x, " 7289 "ue_mask_lo_reg=0x%x, " 7290 "ue_mask_hi_reg=0x%x\n", 7291 uerrlo_reg.word0, 7292 uerrhi_reg.word0, 7293 phba->sli4_hba.ue_mask_lo, 7294 phba->sli4_hba.ue_mask_hi); 7295 port_error = -ENODEV; 7296 } 7297 break; 7298 case LPFC_SLI_INTF_IF_TYPE_2: 7299 /* Final checks. The port status should be clean. */ 7300 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, 7301 ®_data.word0) || 7302 (bf_get(lpfc_sliport_status_err, ®_data) && 7303 !bf_get(lpfc_sliport_status_rn, ®_data))) { 7304 phba->work_status[0] = 7305 readl(phba->sli4_hba.u.if_type2. 7306 ERR1regaddr); 7307 phba->work_status[1] = 7308 readl(phba->sli4_hba.u.if_type2. 7309 ERR2regaddr); 7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7311 "2888 Unrecoverable port error " 7312 "following POST: port status reg " 7313 "0x%x, port_smphr reg 0x%x, " 7314 "error 1=0x%x, error 2=0x%x\n", 7315 reg_data.word0, 7316 portsmphr_reg.word0, 7317 phba->work_status[0], 7318 phba->work_status[1]); 7319 port_error = -ENODEV; 7320 } 7321 break; 7322 case LPFC_SLI_INTF_IF_TYPE_1: 7323 default: 7324 break; 7325 } 7326 } 7327 return port_error; 7328 } 7329 7330 /** 7331 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. 7332 * @phba: pointer to lpfc hba data structure. 7333 * @if_type: The SLI4 interface type getting configured. 7334 * 7335 * This routine is invoked to set up SLI4 BAR0 PCI config space register 7336 * memory map. 7337 **/ 7338 static void 7339 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) 7340 { 7341 switch (if_type) { 7342 case LPFC_SLI_INTF_IF_TYPE_0: 7343 phba->sli4_hba.u.if_type0.UERRLOregaddr = 7344 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; 7345 phba->sli4_hba.u.if_type0.UERRHIregaddr = 7346 phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; 7347 phba->sli4_hba.u.if_type0.UEMASKLOregaddr = 7348 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; 7349 phba->sli4_hba.u.if_type0.UEMASKHIregaddr = 7350 phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; 7351 phba->sli4_hba.SLIINTFregaddr = 7352 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7353 break; 7354 case LPFC_SLI_INTF_IF_TYPE_2: 7355 phba->sli4_hba.u.if_type2.EQDregaddr = 7356 phba->sli4_hba.conf_regs_memmap_p + 7357 LPFC_CTL_PORT_EQ_DELAY_OFFSET; 7358 phba->sli4_hba.u.if_type2.ERR1regaddr = 7359 phba->sli4_hba.conf_regs_memmap_p + 7360 LPFC_CTL_PORT_ER1_OFFSET; 7361 phba->sli4_hba.u.if_type2.ERR2regaddr = 7362 phba->sli4_hba.conf_regs_memmap_p + 7363 LPFC_CTL_PORT_ER2_OFFSET; 7364 phba->sli4_hba.u.if_type2.CTRLregaddr = 7365 phba->sli4_hba.conf_regs_memmap_p + 7366 LPFC_CTL_PORT_CTL_OFFSET; 7367 phba->sli4_hba.u.if_type2.STATUSregaddr = 7368 phba->sli4_hba.conf_regs_memmap_p + 7369 LPFC_CTL_PORT_STA_OFFSET; 7370 phba->sli4_hba.SLIINTFregaddr = 7371 phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; 7372 phba->sli4_hba.PSMPHRregaddr = 7373 phba->sli4_hba.conf_regs_memmap_p + 7374 LPFC_CTL_PORT_SEM_OFFSET; 7375 phba->sli4_hba.RQDBregaddr = 7376 phba->sli4_hba.conf_regs_memmap_p + 7377 LPFC_ULP0_RQ_DOORBELL; 7378 phba->sli4_hba.WQDBregaddr = 7379 phba->sli4_hba.conf_regs_memmap_p + 7380 LPFC_ULP0_WQ_DOORBELL; 7381 phba->sli4_hba.EQCQDBregaddr = 7382 phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; 7383 phba->sli4_hba.MQDBregaddr = 7384 phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; 7385 phba->sli4_hba.BMBXregaddr = 7386 phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; 7387 break; 7388 case LPFC_SLI_INTF_IF_TYPE_1: 7389 default: 7390 dev_printk(KERN_ERR, &phba->pcidev->dev, 7391 "FATAL - unsupported SLI4 interface type - %d\n", 7392 if_type); 7393 break; 7394 } 7395 } 7396 7397 /** 7398 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. 7399 * @phba: pointer to lpfc hba data structure. 7400 * 7401 * This routine is invoked to set up SLI4 BAR1 control status register (CSR) 7402 * memory map. 7403 **/ 7404 static void 7405 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba) 7406 { 7407 phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7408 LPFC_SLIPORT_IF0_SMPHR; 7409 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7410 LPFC_HST_ISR0; 7411 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7412 LPFC_HST_IMR0; 7413 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + 7414 LPFC_HST_ISCR0; 7415 } 7416 7417 /** 7418 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. 7419 * @phba: pointer to lpfc hba data structure. 7420 * @vf: virtual function number 7421 * 7422 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map 7423 * based on the given viftual function number, @vf. 7424 * 7425 * Return 0 if successful, otherwise -ENODEV. 7426 **/ 7427 static int 7428 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) 7429 { 7430 if (vf > LPFC_VIR_FUNC_MAX) 7431 return -ENODEV; 7432 7433 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7434 vf * LPFC_VFR_PAGE_SIZE + 7435 LPFC_ULP0_RQ_DOORBELL); 7436 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7437 vf * LPFC_VFR_PAGE_SIZE + 7438 LPFC_ULP0_WQ_DOORBELL); 7439 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7440 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL); 7441 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7442 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); 7443 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + 7444 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); 7445 return 0; 7446 } 7447 7448 /** 7449 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox 7450 * @phba: pointer to lpfc hba data structure. 7451 * 7452 * This routine is invoked to create the bootstrap mailbox 7453 * region consistent with the SLI-4 interface spec. This 7454 * routine allocates all memory necessary to communicate 7455 * mailbox commands to the port and sets up all alignment 7456 * needs. No locks are expected to be held when calling 7457 * this routine. 7458 * 7459 * Return codes 7460 * 0 - successful 7461 * -ENOMEM - could not allocated memory. 7462 **/ 7463 static int 7464 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) 7465 { 7466 uint32_t bmbx_size; 7467 struct lpfc_dmabuf *dmabuf; 7468 struct dma_address *dma_address; 7469 uint32_t pa_addr; 7470 uint64_t phys_addr; 7471 7472 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); 7473 if (!dmabuf) 7474 return -ENOMEM; 7475 7476 /* 7477 * The bootstrap mailbox region is comprised of 2 parts 7478 * plus an alignment restriction of 16 bytes. 7479 */ 7480 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); 7481 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, 7482 &dmabuf->phys, GFP_KERNEL); 7483 if (!dmabuf->virt) { 7484 kfree(dmabuf); 7485 return -ENOMEM; 7486 } 7487 7488 /* 7489 * Initialize the bootstrap mailbox pointers now so that the register 7490 * operations are simple later. The mailbox dma address is required 7491 * to be 16-byte aligned. Also align the virtual memory as each 7492 * maibox is copied into the bmbx mailbox region before issuing the 7493 * command to the port. 7494 */ 7495 phba->sli4_hba.bmbx.dmabuf = dmabuf; 7496 phba->sli4_hba.bmbx.bmbx_size = bmbx_size; 7497 7498 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, 7499 LPFC_ALIGN_16_BYTE); 7500 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, 7501 LPFC_ALIGN_16_BYTE); 7502 7503 /* 7504 * Set the high and low physical addresses now. The SLI4 alignment 7505 * requirement is 16 bytes and the mailbox is posted to the port 7506 * as two 30-bit addresses. The other data is a bit marking whether 7507 * the 30-bit address is the high or low address. 7508 * Upcast bmbx aphys to 64bits so shift instruction compiles 7509 * clean on 32 bit machines. 7510 */ 7511 dma_address = &phba->sli4_hba.bmbx.dma_address; 7512 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; 7513 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); 7514 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | 7515 LPFC_BMBX_BIT1_ADDR_HI); 7516 7517 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); 7518 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | 7519 LPFC_BMBX_BIT1_ADDR_LO); 7520 return 0; 7521 } 7522 7523 /** 7524 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources 7525 * @phba: pointer to lpfc hba data structure. 7526 * 7527 * This routine is invoked to teardown the bootstrap mailbox 7528 * region and release all host resources. This routine requires 7529 * the caller to ensure all mailbox commands recovered, no 7530 * additional mailbox comands are sent, and interrupts are disabled 7531 * before calling this routine. 7532 * 7533 **/ 7534 static void 7535 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) 7536 { 7537 dma_free_coherent(&phba->pcidev->dev, 7538 phba->sli4_hba.bmbx.bmbx_size, 7539 phba->sli4_hba.bmbx.dmabuf->virt, 7540 phba->sli4_hba.bmbx.dmabuf->phys); 7541 7542 kfree(phba->sli4_hba.bmbx.dmabuf); 7543 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); 7544 } 7545 7546 /** 7547 * lpfc_sli4_read_config - Get the config parameters. 7548 * @phba: pointer to lpfc hba data structure. 7549 * 7550 * This routine is invoked to read the configuration parameters from the HBA. 7551 * The configuration parameters are used to set the base and maximum values 7552 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource 7553 * allocation for the port. 7554 * 7555 * Return codes 7556 * 0 - successful 7557 * -ENOMEM - No available memory 7558 * -EIO - The mailbox failed to complete successfully. 7559 **/ 7560 int 7561 lpfc_sli4_read_config(struct lpfc_hba *phba) 7562 { 7563 LPFC_MBOXQ_t *pmb; 7564 struct lpfc_mbx_read_config *rd_config; 7565 union lpfc_sli4_cfg_shdr *shdr; 7566 uint32_t shdr_status, shdr_add_status; 7567 struct lpfc_mbx_get_func_cfg *get_func_cfg; 7568 struct lpfc_rsrc_desc_fcfcoe *desc; 7569 char *pdesc_0; 7570 uint16_t forced_link_speed; 7571 uint32_t if_type; 7572 int length, i, rc = 0, rc2; 7573 7574 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 7575 if (!pmb) { 7576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7577 "2011 Unable to allocate memory for issuing " 7578 "SLI_CONFIG_SPECIAL mailbox command\n"); 7579 return -ENOMEM; 7580 } 7581 7582 lpfc_read_config(phba, pmb); 7583 7584 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7585 if (rc != MBX_SUCCESS) { 7586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7587 "2012 Mailbox failed , mbxCmd x%x " 7588 "READ_CONFIG, mbxStatus x%x\n", 7589 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7590 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7591 rc = -EIO; 7592 } else { 7593 rd_config = &pmb->u.mqe.un.rd_config; 7594 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { 7595 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; 7596 phba->sli4_hba.lnk_info.lnk_tp = 7597 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); 7598 phba->sli4_hba.lnk_info.lnk_no = 7599 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); 7600 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7601 "3081 lnk_type:%d, lnk_numb:%d\n", 7602 phba->sli4_hba.lnk_info.lnk_tp, 7603 phba->sli4_hba.lnk_info.lnk_no); 7604 } else 7605 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, 7606 "3082 Mailbox (x%x) returned ldv:x0\n", 7607 bf_get(lpfc_mqe_command, &pmb->u.mqe)); 7608 phba->sli4_hba.extents_in_use = 7609 bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); 7610 phba->sli4_hba.max_cfg_param.max_xri = 7611 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); 7612 phba->sli4_hba.max_cfg_param.xri_base = 7613 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); 7614 phba->sli4_hba.max_cfg_param.max_vpi = 7615 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); 7616 phba->sli4_hba.max_cfg_param.vpi_base = 7617 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); 7618 phba->sli4_hba.max_cfg_param.max_rpi = 7619 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); 7620 phba->sli4_hba.max_cfg_param.rpi_base = 7621 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); 7622 phba->sli4_hba.max_cfg_param.max_vfi = 7623 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); 7624 phba->sli4_hba.max_cfg_param.vfi_base = 7625 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); 7626 phba->sli4_hba.max_cfg_param.max_fcfi = 7627 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); 7628 phba->sli4_hba.max_cfg_param.max_eq = 7629 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); 7630 phba->sli4_hba.max_cfg_param.max_rq = 7631 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); 7632 phba->sli4_hba.max_cfg_param.max_wq = 7633 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); 7634 phba->sli4_hba.max_cfg_param.max_cq = 7635 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); 7636 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); 7637 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; 7638 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; 7639 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; 7640 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? 7641 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; 7642 phba->max_vports = phba->max_vpi; 7643 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7644 "2003 cfg params Extents? %d " 7645 "XRI(B:%d M:%d), " 7646 "VPI(B:%d M:%d) " 7647 "VFI(B:%d M:%d) " 7648 "RPI(B:%d M:%d) " 7649 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", 7650 phba->sli4_hba.extents_in_use, 7651 phba->sli4_hba.max_cfg_param.xri_base, 7652 phba->sli4_hba.max_cfg_param.max_xri, 7653 phba->sli4_hba.max_cfg_param.vpi_base, 7654 phba->sli4_hba.max_cfg_param.max_vpi, 7655 phba->sli4_hba.max_cfg_param.vfi_base, 7656 phba->sli4_hba.max_cfg_param.max_vfi, 7657 phba->sli4_hba.max_cfg_param.rpi_base, 7658 phba->sli4_hba.max_cfg_param.max_rpi, 7659 phba->sli4_hba.max_cfg_param.max_fcfi, 7660 phba->sli4_hba.max_cfg_param.max_eq, 7661 phba->sli4_hba.max_cfg_param.max_cq, 7662 phba->sli4_hba.max_cfg_param.max_wq, 7663 phba->sli4_hba.max_cfg_param.max_rq); 7664 7665 } 7666 7667 if (rc) 7668 goto read_cfg_out; 7669 7670 /* Update link speed if forced link speed is supported */ 7671 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7672 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 7673 forced_link_speed = 7674 bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); 7675 if (forced_link_speed) { 7676 phba->hba_flag |= HBA_FORCED_LINK_SPEED; 7677 7678 switch (forced_link_speed) { 7679 case LINK_SPEED_1G: 7680 phba->cfg_link_speed = 7681 LPFC_USER_LINK_SPEED_1G; 7682 break; 7683 case LINK_SPEED_2G: 7684 phba->cfg_link_speed = 7685 LPFC_USER_LINK_SPEED_2G; 7686 break; 7687 case LINK_SPEED_4G: 7688 phba->cfg_link_speed = 7689 LPFC_USER_LINK_SPEED_4G; 7690 break; 7691 case LINK_SPEED_8G: 7692 phba->cfg_link_speed = 7693 LPFC_USER_LINK_SPEED_8G; 7694 break; 7695 case LINK_SPEED_10G: 7696 phba->cfg_link_speed = 7697 LPFC_USER_LINK_SPEED_10G; 7698 break; 7699 case LINK_SPEED_16G: 7700 phba->cfg_link_speed = 7701 LPFC_USER_LINK_SPEED_16G; 7702 break; 7703 case LINK_SPEED_32G: 7704 phba->cfg_link_speed = 7705 LPFC_USER_LINK_SPEED_32G; 7706 break; 7707 case 0xffff: 7708 phba->cfg_link_speed = 7709 LPFC_USER_LINK_SPEED_AUTO; 7710 break; 7711 default: 7712 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7713 "0047 Unrecognized link " 7714 "speed : %d\n", 7715 forced_link_speed); 7716 phba->cfg_link_speed = 7717 LPFC_USER_LINK_SPEED_AUTO; 7718 } 7719 } 7720 } 7721 7722 /* Reset the DFT_HBA_Q_DEPTH to the max xri */ 7723 length = phba->sli4_hba.max_cfg_param.max_xri - 7724 lpfc_sli4_get_els_iocb_cnt(phba); 7725 if (phba->cfg_hba_queue_depth > length) { 7726 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 7727 "3361 HBA queue depth changed from %d to %d\n", 7728 phba->cfg_hba_queue_depth, length); 7729 phba->cfg_hba_queue_depth = length; 7730 } 7731 7732 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 7733 LPFC_SLI_INTF_IF_TYPE_2) 7734 goto read_cfg_out; 7735 7736 /* get the pf# and vf# for SLI4 if_type 2 port */ 7737 length = (sizeof(struct lpfc_mbx_get_func_cfg) - 7738 sizeof(struct lpfc_sli4_cfg_mhdr)); 7739 lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, 7740 LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, 7741 length, LPFC_SLI4_MBX_EMBED); 7742 7743 rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 7744 shdr = (union lpfc_sli4_cfg_shdr *) 7745 &pmb->u.mqe.un.sli4_config.header.cfg_shdr; 7746 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 7747 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 7748 if (rc2 || shdr_status || shdr_add_status) { 7749 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7750 "3026 Mailbox failed , mbxCmd x%x " 7751 "GET_FUNCTION_CONFIG, mbxStatus x%x\n", 7752 bf_get(lpfc_mqe_command, &pmb->u.mqe), 7753 bf_get(lpfc_mqe_status, &pmb->u.mqe)); 7754 goto read_cfg_out; 7755 } 7756 7757 /* search for fc_fcoe resrouce descriptor */ 7758 get_func_cfg = &pmb->u.mqe.un.get_func_cfg; 7759 7760 pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; 7761 desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; 7762 length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); 7763 if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) 7764 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; 7765 else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) 7766 goto read_cfg_out; 7767 7768 for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { 7769 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); 7770 if (LPFC_RSRC_DESC_TYPE_FCFCOE == 7771 bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { 7772 phba->sli4_hba.iov.pf_number = 7773 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); 7774 phba->sli4_hba.iov.vf_number = 7775 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); 7776 break; 7777 } 7778 } 7779 7780 if (i < LPFC_RSRC_DESC_MAX_NUM) 7781 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 7782 "3027 GET_FUNCTION_CONFIG: pf_number:%d, " 7783 "vf_number:%d\n", phba->sli4_hba.iov.pf_number, 7784 phba->sli4_hba.iov.vf_number); 7785 else 7786 lpfc_printf_log(phba, KERN_ERR, LOG_SLI, 7787 "3028 GET_FUNCTION_CONFIG: failed to find " 7788 "Resrouce Descriptor:x%x\n", 7789 LPFC_RSRC_DESC_TYPE_FCFCOE); 7790 7791 read_cfg_out: 7792 mempool_free(pmb, phba->mbox_mem_pool); 7793 return rc; 7794 } 7795 7796 /** 7797 * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. 7798 * @phba: pointer to lpfc hba data structure. 7799 * 7800 * This routine is invoked to setup the port-side endian order when 7801 * the port if_type is 0. This routine has no function for other 7802 * if_types. 7803 * 7804 * Return codes 7805 * 0 - successful 7806 * -ENOMEM - No available memory 7807 * -EIO - The mailbox failed to complete successfully. 7808 **/ 7809 static int 7810 lpfc_setup_endian_order(struct lpfc_hba *phba) 7811 { 7812 LPFC_MBOXQ_t *mboxq; 7813 uint32_t if_type, rc = 0; 7814 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, 7815 HOST_ENDIAN_HIGH_WORD1}; 7816 7817 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 7818 switch (if_type) { 7819 case LPFC_SLI_INTF_IF_TYPE_0: 7820 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 7821 GFP_KERNEL); 7822 if (!mboxq) { 7823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7824 "0492 Unable to allocate memory for " 7825 "issuing SLI_CONFIG_SPECIAL mailbox " 7826 "command\n"); 7827 return -ENOMEM; 7828 } 7829 7830 /* 7831 * The SLI4_CONFIG_SPECIAL mailbox command requires the first 7832 * two words to contain special data values and no other data. 7833 */ 7834 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); 7835 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); 7836 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 7837 if (rc != MBX_SUCCESS) { 7838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7839 "0493 SLI_CONFIG_SPECIAL mailbox " 7840 "failed with status x%x\n", 7841 rc); 7842 rc = -EIO; 7843 } 7844 mempool_free(mboxq, phba->mbox_mem_pool); 7845 break; 7846 case LPFC_SLI_INTF_IF_TYPE_2: 7847 case LPFC_SLI_INTF_IF_TYPE_1: 7848 default: 7849 break; 7850 } 7851 return rc; 7852 } 7853 7854 /** 7855 * lpfc_sli4_queue_verify - Verify and update EQ counts 7856 * @phba: pointer to lpfc hba data structure. 7857 * 7858 * This routine is invoked to check the user settable queue counts for EQs. 7859 * After this routine is called the counts will be set to valid values that 7860 * adhere to the constraints of the system's interrupt vectors and the port's 7861 * queue resources. 7862 * 7863 * Return codes 7864 * 0 - successful 7865 * -ENOMEM - No available memory 7866 **/ 7867 static int 7868 lpfc_sli4_queue_verify(struct lpfc_hba *phba) 7869 { 7870 int io_channel; 7871 int fof_vectors = phba->cfg_fof ? 1 : 0; 7872 7873 /* 7874 * Sanity check for configured queue parameters against the run-time 7875 * device parameters 7876 */ 7877 7878 /* Sanity check on HBA EQ parameters */ 7879 io_channel = phba->io_channel_irqs; 7880 7881 if (phba->sli4_hba.num_online_cpu < io_channel) { 7882 lpfc_printf_log(phba, 7883 KERN_ERR, LOG_INIT, 7884 "3188 Reducing IO channels to match number of " 7885 "online CPUs: from %d to %d\n", 7886 io_channel, phba->sli4_hba.num_online_cpu); 7887 io_channel = phba->sli4_hba.num_online_cpu; 7888 } 7889 7890 if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { 7891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7892 "2575 Reducing IO channels to match number of " 7893 "available EQs: from %d to %d\n", 7894 io_channel, 7895 phba->sli4_hba.max_cfg_param.max_eq); 7896 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; 7897 } 7898 7899 /* The actual number of FCP / NVME event queues adopted */ 7900 if (io_channel != phba->io_channel_irqs) 7901 phba->io_channel_irqs = io_channel; 7902 if (phba->cfg_fcp_io_channel > io_channel) 7903 phba->cfg_fcp_io_channel = io_channel; 7904 if (phba->cfg_nvme_io_channel > io_channel) 7905 phba->cfg_nvme_io_channel = io_channel; 7906 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) 7907 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; 7908 7909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7910 "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", 7911 phba->io_channel_irqs, phba->cfg_fcp_io_channel, 7912 phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); 7913 7914 /* Get EQ depth from module parameter, fake the default for now */ 7915 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 7916 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 7917 7918 /* Get CQ depth from module parameter, fake the default for now */ 7919 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 7920 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 7921 return 0; 7922 } 7923 7924 static int 7925 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) 7926 { 7927 struct lpfc_queue *qdesc; 7928 int cnt; 7929 7930 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7931 phba->sli4_hba.cq_ecount); 7932 if (!qdesc) { 7933 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7934 "0508 Failed allocate fast-path NVME CQ (%d)\n", 7935 wqidx); 7936 return 1; 7937 } 7938 phba->sli4_hba.nvme_cq[wqidx] = qdesc; 7939 7940 cnt = LPFC_NVME_WQSIZE; 7941 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt); 7942 if (!qdesc) { 7943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7944 "0509 Failed allocate fast-path NVME WQ (%d)\n", 7945 wqidx); 7946 return 1; 7947 } 7948 phba->sli4_hba.nvme_wq[wqidx] = qdesc; 7949 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7950 return 0; 7951 } 7952 7953 static int 7954 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) 7955 { 7956 struct lpfc_queue *qdesc; 7957 uint32_t wqesize; 7958 7959 /* Create Fast Path FCP CQs */ 7960 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 7961 phba->sli4_hba.cq_ecount); 7962 if (!qdesc) { 7963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7964 "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); 7965 return 1; 7966 } 7967 phba->sli4_hba.fcp_cq[wqidx] = qdesc; 7968 7969 /* Create Fast Path FCP WQs */ 7970 wqesize = (phba->fcp_embed_io) ? 7971 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 7972 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount); 7973 if (!qdesc) { 7974 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7975 "0503 Failed allocate fast-path FCP WQ (%d)\n", 7976 wqidx); 7977 return 1; 7978 } 7979 phba->sli4_hba.fcp_wq[wqidx] = qdesc; 7980 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 7981 return 0; 7982 } 7983 7984 /** 7985 * lpfc_sli4_queue_create - Create all the SLI4 queues 7986 * @phba: pointer to lpfc hba data structure. 7987 * 7988 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA 7989 * operation. For each SLI4 queue type, the parameters such as queue entry 7990 * count (queue depth) shall be taken from the module parameter. For now, 7991 * we just use some constant number as place holder. 7992 * 7993 * Return codes 7994 * 0 - successful 7995 * -ENOMEM - No availble memory 7996 * -EIO - The mailbox failed to complete successfully. 7997 **/ 7998 int 7999 lpfc_sli4_queue_create(struct lpfc_hba *phba) 8000 { 8001 struct lpfc_queue *qdesc; 8002 int idx, io_channel; 8003 8004 /* 8005 * Create HBA Record arrays. 8006 * Both NVME and FCP will share that same vectors / EQs 8007 */ 8008 io_channel = phba->io_channel_irqs; 8009 if (!io_channel) 8010 return -ERANGE; 8011 8012 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; 8013 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; 8014 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; 8015 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; 8016 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; 8017 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; 8018 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; 8019 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; 8020 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; 8021 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; 8022 8023 phba->sli4_hba.hba_eq = kcalloc(io_channel, 8024 sizeof(struct lpfc_queue *), 8025 GFP_KERNEL); 8026 if (!phba->sli4_hba.hba_eq) { 8027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8028 "2576 Failed allocate memory for " 8029 "fast-path EQ record array\n"); 8030 goto out_error; 8031 } 8032 8033 if (phba->cfg_fcp_io_channel) { 8034 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, 8035 sizeof(struct lpfc_queue *), 8036 GFP_KERNEL); 8037 if (!phba->sli4_hba.fcp_cq) { 8038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8039 "2577 Failed allocate memory for " 8040 "fast-path CQ record array\n"); 8041 goto out_error; 8042 } 8043 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, 8044 sizeof(struct lpfc_queue *), 8045 GFP_KERNEL); 8046 if (!phba->sli4_hba.fcp_wq) { 8047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8048 "2578 Failed allocate memory for " 8049 "fast-path FCP WQ record array\n"); 8050 goto out_error; 8051 } 8052 /* 8053 * Since the first EQ can have multiple CQs associated with it, 8054 * this array is used to quickly see if we have a FCP fast-path 8055 * CQ match. 8056 */ 8057 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, 8058 sizeof(uint16_t), 8059 GFP_KERNEL); 8060 if (!phba->sli4_hba.fcp_cq_map) { 8061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8062 "2545 Failed allocate memory for " 8063 "fast-path CQ map\n"); 8064 goto out_error; 8065 } 8066 } 8067 8068 if (phba->cfg_nvme_io_channel) { 8069 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, 8070 sizeof(struct lpfc_queue *), 8071 GFP_KERNEL); 8072 if (!phba->sli4_hba.nvme_cq) { 8073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8074 "6077 Failed allocate memory for " 8075 "fast-path CQ record array\n"); 8076 goto out_error; 8077 } 8078 8079 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, 8080 sizeof(struct lpfc_queue *), 8081 GFP_KERNEL); 8082 if (!phba->sli4_hba.nvme_wq) { 8083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8084 "2581 Failed allocate memory for " 8085 "fast-path NVME WQ record array\n"); 8086 goto out_error; 8087 } 8088 8089 /* 8090 * Since the first EQ can have multiple CQs associated with it, 8091 * this array is used to quickly see if we have a NVME fast-path 8092 * CQ match. 8093 */ 8094 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, 8095 sizeof(uint16_t), 8096 GFP_KERNEL); 8097 if (!phba->sli4_hba.nvme_cq_map) { 8098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8099 "6078 Failed allocate memory for " 8100 "fast-path CQ map\n"); 8101 goto out_error; 8102 } 8103 8104 if (phba->nvmet_support) { 8105 phba->sli4_hba.nvmet_cqset = kcalloc( 8106 phba->cfg_nvmet_mrq, 8107 sizeof(struct lpfc_queue *), 8108 GFP_KERNEL); 8109 if (!phba->sli4_hba.nvmet_cqset) { 8110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8111 "3121 Fail allocate memory for " 8112 "fast-path CQ set array\n"); 8113 goto out_error; 8114 } 8115 phba->sli4_hba.nvmet_mrq_hdr = kcalloc( 8116 phba->cfg_nvmet_mrq, 8117 sizeof(struct lpfc_queue *), 8118 GFP_KERNEL); 8119 if (!phba->sli4_hba.nvmet_mrq_hdr) { 8120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8121 "3122 Fail allocate memory for " 8122 "fast-path RQ set hdr array\n"); 8123 goto out_error; 8124 } 8125 phba->sli4_hba.nvmet_mrq_data = kcalloc( 8126 phba->cfg_nvmet_mrq, 8127 sizeof(struct lpfc_queue *), 8128 GFP_KERNEL); 8129 if (!phba->sli4_hba.nvmet_mrq_data) { 8130 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8131 "3124 Fail allocate memory for " 8132 "fast-path RQ set data array\n"); 8133 goto out_error; 8134 } 8135 } 8136 } 8137 8138 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8139 8140 /* Create HBA Event Queues (EQs) */ 8141 for (idx = 0; idx < io_channel; idx++) { 8142 /* Create EQs */ 8143 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 8144 phba->sli4_hba.eq_ecount); 8145 if (!qdesc) { 8146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8147 "0497 Failed allocate EQ (%d)\n", idx); 8148 goto out_error; 8149 } 8150 phba->sli4_hba.hba_eq[idx] = qdesc; 8151 } 8152 8153 /* FCP and NVME io channels are not required to be balanced */ 8154 8155 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) 8156 if (lpfc_alloc_fcp_wq_cq(phba, idx)) 8157 goto out_error; 8158 8159 for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) 8160 if (lpfc_alloc_nvme_wq_cq(phba, idx)) 8161 goto out_error; 8162 8163 if (phba->nvmet_support) { 8164 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8165 qdesc = lpfc_sli4_queue_alloc(phba, 8166 phba->sli4_hba.cq_esize, 8167 phba->sli4_hba.cq_ecount); 8168 if (!qdesc) { 8169 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8170 "3142 Failed allocate NVME " 8171 "CQ Set (%d)\n", idx); 8172 goto out_error; 8173 } 8174 phba->sli4_hba.nvmet_cqset[idx] = qdesc; 8175 } 8176 } 8177 8178 /* 8179 * Create Slow Path Completion Queues (CQs) 8180 */ 8181 8182 /* Create slow-path Mailbox Command Complete Queue */ 8183 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8184 phba->sli4_hba.cq_ecount); 8185 if (!qdesc) { 8186 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8187 "0500 Failed allocate slow-path mailbox CQ\n"); 8188 goto out_error; 8189 } 8190 phba->sli4_hba.mbx_cq = qdesc; 8191 8192 /* Create slow-path ELS Complete Queue */ 8193 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8194 phba->sli4_hba.cq_ecount); 8195 if (!qdesc) { 8196 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8197 "0501 Failed allocate slow-path ELS CQ\n"); 8198 goto out_error; 8199 } 8200 phba->sli4_hba.els_cq = qdesc; 8201 8202 8203 /* 8204 * Create Slow Path Work Queues (WQs) 8205 */ 8206 8207 /* Create Mailbox Command Queue */ 8208 8209 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize, 8210 phba->sli4_hba.mq_ecount); 8211 if (!qdesc) { 8212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8213 "0505 Failed allocate slow-path MQ\n"); 8214 goto out_error; 8215 } 8216 phba->sli4_hba.mbx_wq = qdesc; 8217 8218 /* 8219 * Create ELS Work Queues 8220 */ 8221 8222 /* Create slow-path ELS Work Queue */ 8223 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8224 phba->sli4_hba.wq_ecount); 8225 if (!qdesc) { 8226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8227 "0504 Failed allocate slow-path ELS WQ\n"); 8228 goto out_error; 8229 } 8230 phba->sli4_hba.els_wq = qdesc; 8231 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8232 8233 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 8234 /* Create NVME LS Complete Queue */ 8235 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 8236 phba->sli4_hba.cq_ecount); 8237 if (!qdesc) { 8238 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8239 "6079 Failed allocate NVME LS CQ\n"); 8240 goto out_error; 8241 } 8242 phba->sli4_hba.nvmels_cq = qdesc; 8243 8244 /* Create NVME LS Work Queue */ 8245 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize, 8246 phba->sli4_hba.wq_ecount); 8247 if (!qdesc) { 8248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8249 "6080 Failed allocate NVME LS WQ\n"); 8250 goto out_error; 8251 } 8252 phba->sli4_hba.nvmels_wq = qdesc; 8253 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 8254 } 8255 8256 /* 8257 * Create Receive Queue (RQ) 8258 */ 8259 8260 /* Create Receive Queue for header */ 8261 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8262 phba->sli4_hba.rq_ecount); 8263 if (!qdesc) { 8264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8265 "0506 Failed allocate receive HRQ\n"); 8266 goto out_error; 8267 } 8268 phba->sli4_hba.hdr_rq = qdesc; 8269 8270 /* Create Receive Queue for data */ 8271 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize, 8272 phba->sli4_hba.rq_ecount); 8273 if (!qdesc) { 8274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8275 "0507 Failed allocate receive DRQ\n"); 8276 goto out_error; 8277 } 8278 phba->sli4_hba.dat_rq = qdesc; 8279 8280 if (phba->nvmet_support) { 8281 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { 8282 /* Create NVMET Receive Queue for header */ 8283 qdesc = lpfc_sli4_queue_alloc(phba, 8284 phba->sli4_hba.rq_esize, 8285 LPFC_NVMET_RQE_DEF_COUNT); 8286 if (!qdesc) { 8287 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8288 "3146 Failed allocate " 8289 "receive HRQ\n"); 8290 goto out_error; 8291 } 8292 phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; 8293 8294 /* Only needed for header of RQ pair */ 8295 qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), 8296 GFP_KERNEL); 8297 if (qdesc->rqbp == NULL) { 8298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8299 "6131 Failed allocate " 8300 "Header RQBP\n"); 8301 goto out_error; 8302 } 8303 8304 /* Create NVMET Receive Queue for data */ 8305 qdesc = lpfc_sli4_queue_alloc(phba, 8306 phba->sli4_hba.rq_esize, 8307 LPFC_NVMET_RQE_DEF_COUNT); 8308 if (!qdesc) { 8309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8310 "3156 Failed allocate " 8311 "receive DRQ\n"); 8312 goto out_error; 8313 } 8314 phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; 8315 } 8316 } 8317 8318 /* Create the Queues needed for Flash Optimized Fabric operations */ 8319 if (phba->cfg_fof) 8320 lpfc_fof_queue_create(phba); 8321 return 0; 8322 8323 out_error: 8324 lpfc_sli4_queue_destroy(phba); 8325 return -ENOMEM; 8326 } 8327 8328 static inline void 8329 __lpfc_sli4_release_queue(struct lpfc_queue **qp) 8330 { 8331 if (*qp != NULL) { 8332 lpfc_sli4_queue_free(*qp); 8333 *qp = NULL; 8334 } 8335 } 8336 8337 static inline void 8338 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) 8339 { 8340 int idx; 8341 8342 if (*qs == NULL) 8343 return; 8344 8345 for (idx = 0; idx < max; idx++) 8346 __lpfc_sli4_release_queue(&(*qs)[idx]); 8347 8348 kfree(*qs); 8349 *qs = NULL; 8350 } 8351 8352 static inline void 8353 lpfc_sli4_release_queue_map(uint16_t **qmap) 8354 { 8355 if (*qmap != NULL) { 8356 kfree(*qmap); 8357 *qmap = NULL; 8358 } 8359 } 8360 8361 /** 8362 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues 8363 * @phba: pointer to lpfc hba data structure. 8364 * 8365 * This routine is invoked to release all the SLI4 queues with the FCoE HBA 8366 * operation. 8367 * 8368 * Return codes 8369 * 0 - successful 8370 * -ENOMEM - No available memory 8371 * -EIO - The mailbox failed to complete successfully. 8372 **/ 8373 void 8374 lpfc_sli4_queue_destroy(struct lpfc_hba *phba) 8375 { 8376 if (phba->cfg_fof) 8377 lpfc_fof_queue_destroy(phba); 8378 8379 /* Release HBA eqs */ 8380 lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); 8381 8382 /* Release FCP cqs */ 8383 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, 8384 phba->cfg_fcp_io_channel); 8385 8386 /* Release FCP wqs */ 8387 lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, 8388 phba->cfg_fcp_io_channel); 8389 8390 /* Release FCP CQ mapping array */ 8391 lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); 8392 8393 /* Release NVME cqs */ 8394 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, 8395 phba->cfg_nvme_io_channel); 8396 8397 /* Release NVME wqs */ 8398 lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, 8399 phba->cfg_nvme_io_channel); 8400 8401 /* Release NVME CQ mapping array */ 8402 lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); 8403 8404 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, 8405 phba->cfg_nvmet_mrq); 8406 8407 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, 8408 phba->cfg_nvmet_mrq); 8409 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, 8410 phba->cfg_nvmet_mrq); 8411 8412 /* Release mailbox command work queue */ 8413 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); 8414 8415 /* Release ELS work queue */ 8416 __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); 8417 8418 /* Release ELS work queue */ 8419 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); 8420 8421 /* Release unsolicited receive queue */ 8422 __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); 8423 __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); 8424 8425 /* Release ELS complete queue */ 8426 __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); 8427 8428 /* Release NVME LS complete queue */ 8429 __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); 8430 8431 /* Release mailbox command complete queue */ 8432 __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); 8433 8434 /* Everything on this list has been freed */ 8435 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); 8436 } 8437 8438 int 8439 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) 8440 { 8441 struct lpfc_rqb *rqbp; 8442 struct lpfc_dmabuf *h_buf; 8443 struct rqb_dmabuf *rqb_buffer; 8444 8445 rqbp = rq->rqbp; 8446 while (!list_empty(&rqbp->rqb_buffer_list)) { 8447 list_remove_head(&rqbp->rqb_buffer_list, h_buf, 8448 struct lpfc_dmabuf, list); 8449 8450 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); 8451 (rqbp->rqb_free_buffer)(phba, rqb_buffer); 8452 rqbp->buffer_count--; 8453 } 8454 return 1; 8455 } 8456 8457 static int 8458 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, 8459 struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, 8460 int qidx, uint32_t qtype) 8461 { 8462 struct lpfc_sli_ring *pring; 8463 int rc; 8464 8465 if (!eq || !cq || !wq) { 8466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8467 "6085 Fast-path %s (%d) not allocated\n", 8468 ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); 8469 return -ENOMEM; 8470 } 8471 8472 /* create the Cq first */ 8473 rc = lpfc_cq_create(phba, cq, eq, 8474 (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); 8475 if (rc) { 8476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8477 "6086 Failed setup of CQ (%d), rc = 0x%x\n", 8478 qidx, (uint32_t)rc); 8479 return rc; 8480 } 8481 8482 if (qtype != LPFC_MBOX) { 8483 /* Setup nvme_cq_map for fast lookup */ 8484 if (cq_map) 8485 *cq_map = cq->queue_id; 8486 8487 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8488 "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", 8489 qidx, cq->queue_id, qidx, eq->queue_id); 8490 8491 /* create the wq */ 8492 rc = lpfc_wq_create(phba, wq, cq, qtype); 8493 if (rc) { 8494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8495 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", 8496 qidx, (uint32_t)rc); 8497 /* no need to tear down cq - caller will do so */ 8498 return rc; 8499 } 8500 8501 /* Bind this CQ/WQ to the NVME ring */ 8502 pring = wq->pring; 8503 pring->sli.sli4.wqp = (void *)wq; 8504 cq->pring = pring; 8505 8506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8507 "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", 8508 qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); 8509 } else { 8510 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); 8511 if (rc) { 8512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8513 "0539 Failed setup of slow-path MQ: " 8514 "rc = 0x%x\n", rc); 8515 /* no need to tear down cq - caller will do so */ 8516 return rc; 8517 } 8518 8519 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8520 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", 8521 phba->sli4_hba.mbx_wq->queue_id, 8522 phba->sli4_hba.mbx_cq->queue_id); 8523 } 8524 8525 return 0; 8526 } 8527 8528 /** 8529 * lpfc_sli4_queue_setup - Set up all the SLI4 queues 8530 * @phba: pointer to lpfc hba data structure. 8531 * 8532 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA 8533 * operation. 8534 * 8535 * Return codes 8536 * 0 - successful 8537 * -ENOMEM - No available memory 8538 * -EIO - The mailbox failed to complete successfully. 8539 **/ 8540 int 8541 lpfc_sli4_queue_setup(struct lpfc_hba *phba) 8542 { 8543 uint32_t shdr_status, shdr_add_status; 8544 union lpfc_sli4_cfg_shdr *shdr; 8545 LPFC_MBOXQ_t *mboxq; 8546 int qidx; 8547 uint32_t length, io_channel; 8548 int rc = -ENOMEM; 8549 8550 /* Check for dual-ULP support */ 8551 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 8552 if (!mboxq) { 8553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8554 "3249 Unable to allocate memory for " 8555 "QUERY_FW_CFG mailbox command\n"); 8556 return -ENOMEM; 8557 } 8558 length = (sizeof(struct lpfc_mbx_query_fw_config) - 8559 sizeof(struct lpfc_sli4_cfg_mhdr)); 8560 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 8561 LPFC_MBOX_OPCODE_QUERY_FW_CFG, 8562 length, LPFC_SLI4_MBX_EMBED); 8563 8564 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 8565 8566 shdr = (union lpfc_sli4_cfg_shdr *) 8567 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 8568 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 8569 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); 8570 if (shdr_status || shdr_add_status || rc) { 8571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8572 "3250 QUERY_FW_CFG mailbox failed with status " 8573 "x%x add_status x%x, mbx status x%x\n", 8574 shdr_status, shdr_add_status, rc); 8575 if (rc != MBX_TIMEOUT) 8576 mempool_free(mboxq, phba->mbox_mem_pool); 8577 rc = -ENXIO; 8578 goto out_error; 8579 } 8580 8581 phba->sli4_hba.fw_func_mode = 8582 mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; 8583 phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; 8584 phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; 8585 phba->sli4_hba.physical_port = 8586 mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; 8587 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8588 "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " 8589 "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, 8590 phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); 8591 8592 if (rc != MBX_TIMEOUT) 8593 mempool_free(mboxq, phba->mbox_mem_pool); 8594 8595 /* 8596 * Set up HBA Event Queues (EQs) 8597 */ 8598 io_channel = phba->io_channel_irqs; 8599 8600 /* Set up HBA event queue */ 8601 if (io_channel && !phba->sli4_hba.hba_eq) { 8602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8603 "3147 Fast-path EQs not allocated\n"); 8604 rc = -ENOMEM; 8605 goto out_error; 8606 } 8607 for (qidx = 0; qidx < io_channel; qidx++) { 8608 if (!phba->sli4_hba.hba_eq[qidx]) { 8609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8610 "0522 Fast-path EQ (%d) not " 8611 "allocated\n", qidx); 8612 rc = -ENOMEM; 8613 goto out_destroy; 8614 } 8615 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], 8616 phba->cfg_fcp_imax); 8617 if (rc) { 8618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8619 "0523 Failed setup of fast-path EQ " 8620 "(%d), rc = 0x%x\n", qidx, 8621 (uint32_t)rc); 8622 goto out_destroy; 8623 } 8624 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8625 "2584 HBA EQ setup: queue[%d]-id=%d\n", 8626 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); 8627 } 8628 8629 if (phba->cfg_nvme_io_channel) { 8630 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { 8631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8632 "6084 Fast-path NVME %s array not allocated\n", 8633 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); 8634 rc = -ENOMEM; 8635 goto out_destroy; 8636 } 8637 8638 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { 8639 rc = lpfc_create_wq_cq(phba, 8640 phba->sli4_hba.hba_eq[ 8641 qidx % io_channel], 8642 phba->sli4_hba.nvme_cq[qidx], 8643 phba->sli4_hba.nvme_wq[qidx], 8644 &phba->sli4_hba.nvme_cq_map[qidx], 8645 qidx, LPFC_NVME); 8646 if (rc) { 8647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8648 "6123 Failed to setup fastpath " 8649 "NVME WQ/CQ (%d), rc = 0x%x\n", 8650 qidx, (uint32_t)rc); 8651 goto out_destroy; 8652 } 8653 } 8654 } 8655 8656 if (phba->cfg_fcp_io_channel) { 8657 /* Set up fast-path FCP Response Complete Queue */ 8658 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { 8659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8660 "3148 Fast-path FCP %s array not allocated\n", 8661 phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); 8662 rc = -ENOMEM; 8663 goto out_destroy; 8664 } 8665 8666 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { 8667 rc = lpfc_create_wq_cq(phba, 8668 phba->sli4_hba.hba_eq[ 8669 qidx % io_channel], 8670 phba->sli4_hba.fcp_cq[qidx], 8671 phba->sli4_hba.fcp_wq[qidx], 8672 &phba->sli4_hba.fcp_cq_map[qidx], 8673 qidx, LPFC_FCP); 8674 if (rc) { 8675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8676 "0535 Failed to setup fastpath " 8677 "FCP WQ/CQ (%d), rc = 0x%x\n", 8678 qidx, (uint32_t)rc); 8679 goto out_destroy; 8680 } 8681 } 8682 } 8683 8684 /* 8685 * Set up Slow Path Complete Queues (CQs) 8686 */ 8687 8688 /* Set up slow-path MBOX CQ/MQ */ 8689 8690 if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { 8691 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8692 "0528 %s not allocated\n", 8693 phba->sli4_hba.mbx_cq ? 8694 "Mailbox WQ" : "Mailbox CQ"); 8695 rc = -ENOMEM; 8696 goto out_destroy; 8697 } 8698 8699 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8700 phba->sli4_hba.mbx_cq, 8701 phba->sli4_hba.mbx_wq, 8702 NULL, 0, LPFC_MBOX); 8703 if (rc) { 8704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8705 "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", 8706 (uint32_t)rc); 8707 goto out_destroy; 8708 } 8709 if (phba->nvmet_support) { 8710 if (!phba->sli4_hba.nvmet_cqset) { 8711 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8712 "3165 Fast-path NVME CQ Set " 8713 "array not allocated\n"); 8714 rc = -ENOMEM; 8715 goto out_destroy; 8716 } 8717 if (phba->cfg_nvmet_mrq > 1) { 8718 rc = lpfc_cq_create_set(phba, 8719 phba->sli4_hba.nvmet_cqset, 8720 phba->sli4_hba.hba_eq, 8721 LPFC_WCQ, LPFC_NVMET); 8722 if (rc) { 8723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8724 "3164 Failed setup of NVME CQ " 8725 "Set, rc = 0x%x\n", 8726 (uint32_t)rc); 8727 goto out_destroy; 8728 } 8729 } else { 8730 /* Set up NVMET Receive Complete Queue */ 8731 rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], 8732 phba->sli4_hba.hba_eq[0], 8733 LPFC_WCQ, LPFC_NVMET); 8734 if (rc) { 8735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8736 "6089 Failed setup NVMET CQ: " 8737 "rc = 0x%x\n", (uint32_t)rc); 8738 goto out_destroy; 8739 } 8740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8741 "6090 NVMET CQ setup: cq-id=%d, " 8742 "parent eq-id=%d\n", 8743 phba->sli4_hba.nvmet_cqset[0]->queue_id, 8744 phba->sli4_hba.hba_eq[0]->queue_id); 8745 } 8746 } 8747 8748 /* Set up slow-path ELS WQ/CQ */ 8749 if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { 8750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8751 "0530 ELS %s not allocated\n", 8752 phba->sli4_hba.els_cq ? "WQ" : "CQ"); 8753 rc = -ENOMEM; 8754 goto out_destroy; 8755 } 8756 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8757 phba->sli4_hba.els_cq, 8758 phba->sli4_hba.els_wq, 8759 NULL, 0, LPFC_ELS); 8760 if (rc) { 8761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8762 "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", 8763 (uint32_t)rc); 8764 goto out_destroy; 8765 } 8766 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8767 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", 8768 phba->sli4_hba.els_wq->queue_id, 8769 phba->sli4_hba.els_cq->queue_id); 8770 8771 if (phba->cfg_nvme_io_channel) { 8772 /* Set up NVME LS Complete Queue */ 8773 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { 8774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8775 "6091 LS %s not allocated\n", 8776 phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); 8777 rc = -ENOMEM; 8778 goto out_destroy; 8779 } 8780 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], 8781 phba->sli4_hba.nvmels_cq, 8782 phba->sli4_hba.nvmels_wq, 8783 NULL, 0, LPFC_NVME_LS); 8784 if (rc) { 8785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8786 "0529 Failed setup of NVVME LS WQ/CQ: " 8787 "rc = 0x%x\n", (uint32_t)rc); 8788 goto out_destroy; 8789 } 8790 8791 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8792 "6096 ELS WQ setup: wq-id=%d, " 8793 "parent cq-id=%d\n", 8794 phba->sli4_hba.nvmels_wq->queue_id, 8795 phba->sli4_hba.nvmels_cq->queue_id); 8796 } 8797 8798 /* 8799 * Create NVMET Receive Queue (RQ) 8800 */ 8801 if (phba->nvmet_support) { 8802 if ((!phba->sli4_hba.nvmet_cqset) || 8803 (!phba->sli4_hba.nvmet_mrq_hdr) || 8804 (!phba->sli4_hba.nvmet_mrq_data)) { 8805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8806 "6130 MRQ CQ Queues not " 8807 "allocated\n"); 8808 rc = -ENOMEM; 8809 goto out_destroy; 8810 } 8811 if (phba->cfg_nvmet_mrq > 1) { 8812 rc = lpfc_mrq_create(phba, 8813 phba->sli4_hba.nvmet_mrq_hdr, 8814 phba->sli4_hba.nvmet_mrq_data, 8815 phba->sli4_hba.nvmet_cqset, 8816 LPFC_NVMET); 8817 if (rc) { 8818 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8819 "6098 Failed setup of NVMET " 8820 "MRQ: rc = 0x%x\n", 8821 (uint32_t)rc); 8822 goto out_destroy; 8823 } 8824 8825 } else { 8826 rc = lpfc_rq_create(phba, 8827 phba->sli4_hba.nvmet_mrq_hdr[0], 8828 phba->sli4_hba.nvmet_mrq_data[0], 8829 phba->sli4_hba.nvmet_cqset[0], 8830 LPFC_NVMET); 8831 if (rc) { 8832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8833 "6057 Failed setup of NVMET " 8834 "Receive Queue: rc = 0x%x\n", 8835 (uint32_t)rc); 8836 goto out_destroy; 8837 } 8838 8839 lpfc_printf_log( 8840 phba, KERN_INFO, LOG_INIT, 8841 "6099 NVMET RQ setup: hdr-rq-id=%d, " 8842 "dat-rq-id=%d parent cq-id=%d\n", 8843 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, 8844 phba->sli4_hba.nvmet_mrq_data[0]->queue_id, 8845 phba->sli4_hba.nvmet_cqset[0]->queue_id); 8846 8847 } 8848 } 8849 8850 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { 8851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8852 "0540 Receive Queue not allocated\n"); 8853 rc = -ENOMEM; 8854 goto out_destroy; 8855 } 8856 8857 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, 8858 phba->sli4_hba.els_cq, LPFC_USOL); 8859 if (rc) { 8860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8861 "0541 Failed setup of Receive Queue: " 8862 "rc = 0x%x\n", (uint32_t)rc); 8863 goto out_destroy; 8864 } 8865 8866 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 8867 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " 8868 "parent cq-id=%d\n", 8869 phba->sli4_hba.hdr_rq->queue_id, 8870 phba->sli4_hba.dat_rq->queue_id, 8871 phba->sli4_hba.els_cq->queue_id); 8872 8873 if (phba->cfg_fof) { 8874 rc = lpfc_fof_queue_setup(phba); 8875 if (rc) { 8876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 8877 "0549 Failed setup of FOF Queues: " 8878 "rc = 0x%x\n", rc); 8879 goto out_destroy; 8880 } 8881 } 8882 8883 for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) 8884 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, 8885 phba->cfg_fcp_imax); 8886 8887 return 0; 8888 8889 out_destroy: 8890 lpfc_sli4_queue_unset(phba); 8891 out_error: 8892 return rc; 8893 } 8894 8895 /** 8896 * lpfc_sli4_queue_unset - Unset all the SLI4 queues 8897 * @phba: pointer to lpfc hba data structure. 8898 * 8899 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA 8900 * operation. 8901 * 8902 * Return codes 8903 * 0 - successful 8904 * -ENOMEM - No available memory 8905 * -EIO - The mailbox failed to complete successfully. 8906 **/ 8907 void 8908 lpfc_sli4_queue_unset(struct lpfc_hba *phba) 8909 { 8910 int qidx; 8911 8912 /* Unset the queues created for Flash Optimized Fabric operations */ 8913 if (phba->cfg_fof) 8914 lpfc_fof_queue_destroy(phba); 8915 8916 /* Unset mailbox command work queue */ 8917 if (phba->sli4_hba.mbx_wq) 8918 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); 8919 8920 /* Unset NVME LS work queue */ 8921 if (phba->sli4_hba.nvmels_wq) 8922 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); 8923 8924 /* Unset ELS work queue */ 8925 if (phba->sli4_hba.els_wq) 8926 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); 8927 8928 /* Unset unsolicited receive queue */ 8929 if (phba->sli4_hba.hdr_rq) 8930 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, 8931 phba->sli4_hba.dat_rq); 8932 8933 /* Unset FCP work queue */ 8934 if (phba->sli4_hba.fcp_wq) 8935 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8936 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); 8937 8938 /* Unset NVME work queue */ 8939 if (phba->sli4_hba.nvme_wq) { 8940 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8941 lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); 8942 } 8943 8944 /* Unset mailbox command complete queue */ 8945 if (phba->sli4_hba.mbx_cq) 8946 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); 8947 8948 /* Unset ELS complete queue */ 8949 if (phba->sli4_hba.els_cq) 8950 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); 8951 8952 /* Unset NVME LS complete queue */ 8953 if (phba->sli4_hba.nvmels_cq) 8954 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); 8955 8956 /* Unset NVME response complete queue */ 8957 if (phba->sli4_hba.nvme_cq) 8958 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) 8959 lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); 8960 8961 /* Unset NVMET MRQ queue */ 8962 if (phba->sli4_hba.nvmet_mrq_hdr) { 8963 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8964 lpfc_rq_destroy(phba, 8965 phba->sli4_hba.nvmet_mrq_hdr[qidx], 8966 phba->sli4_hba.nvmet_mrq_data[qidx]); 8967 } 8968 8969 /* Unset NVMET CQ Set complete queue */ 8970 if (phba->sli4_hba.nvmet_cqset) { 8971 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) 8972 lpfc_cq_destroy(phba, 8973 phba->sli4_hba.nvmet_cqset[qidx]); 8974 } 8975 8976 /* Unset FCP response complete queue */ 8977 if (phba->sli4_hba.fcp_cq) 8978 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) 8979 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); 8980 8981 /* Unset fast-path event queue */ 8982 if (phba->sli4_hba.hba_eq) 8983 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) 8984 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); 8985 } 8986 8987 /** 8988 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool 8989 * @phba: pointer to lpfc hba data structure. 8990 * 8991 * This routine is invoked to allocate and set up a pool of completion queue 8992 * events. The body of the completion queue event is a completion queue entry 8993 * CQE. For now, this pool is used for the interrupt service routine to queue 8994 * the following HBA completion queue events for the worker thread to process: 8995 * - Mailbox asynchronous events 8996 * - Receive queue completion unsolicited events 8997 * Later, this can be used for all the slow-path events. 8998 * 8999 * Return codes 9000 * 0 - successful 9001 * -ENOMEM - No available memory 9002 **/ 9003 static int 9004 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) 9005 { 9006 struct lpfc_cq_event *cq_event; 9007 int i; 9008 9009 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { 9010 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); 9011 if (!cq_event) 9012 goto out_pool_create_fail; 9013 list_add_tail(&cq_event->list, 9014 &phba->sli4_hba.sp_cqe_event_pool); 9015 } 9016 return 0; 9017 9018 out_pool_create_fail: 9019 lpfc_sli4_cq_event_pool_destroy(phba); 9020 return -ENOMEM; 9021 } 9022 9023 /** 9024 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool 9025 * @phba: pointer to lpfc hba data structure. 9026 * 9027 * This routine is invoked to free the pool of completion queue events at 9028 * driver unload time. Note that, it is the responsibility of the driver 9029 * cleanup routine to free all the outstanding completion-queue events 9030 * allocated from this pool back into the pool before invoking this routine 9031 * to destroy the pool. 9032 **/ 9033 static void 9034 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) 9035 { 9036 struct lpfc_cq_event *cq_event, *next_cq_event; 9037 9038 list_for_each_entry_safe(cq_event, next_cq_event, 9039 &phba->sli4_hba.sp_cqe_event_pool, list) { 9040 list_del(&cq_event->list); 9041 kfree(cq_event); 9042 } 9043 } 9044 9045 /** 9046 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9047 * @phba: pointer to lpfc hba data structure. 9048 * 9049 * This routine is the lock free version of the API invoked to allocate a 9050 * completion-queue event from the free pool. 9051 * 9052 * Return: Pointer to the newly allocated completion-queue event if successful 9053 * NULL otherwise. 9054 **/ 9055 struct lpfc_cq_event * 9056 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9057 { 9058 struct lpfc_cq_event *cq_event = NULL; 9059 9060 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, 9061 struct lpfc_cq_event, list); 9062 return cq_event; 9063 } 9064 9065 /** 9066 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool 9067 * @phba: pointer to lpfc hba data structure. 9068 * 9069 * This routine is the lock version of the API invoked to allocate a 9070 * completion-queue event from the free pool. 9071 * 9072 * Return: Pointer to the newly allocated completion-queue event if successful 9073 * NULL otherwise. 9074 **/ 9075 struct lpfc_cq_event * 9076 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) 9077 { 9078 struct lpfc_cq_event *cq_event; 9079 unsigned long iflags; 9080 9081 spin_lock_irqsave(&phba->hbalock, iflags); 9082 cq_event = __lpfc_sli4_cq_event_alloc(phba); 9083 spin_unlock_irqrestore(&phba->hbalock, iflags); 9084 return cq_event; 9085 } 9086 9087 /** 9088 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9089 * @phba: pointer to lpfc hba data structure. 9090 * @cq_event: pointer to the completion queue event to be freed. 9091 * 9092 * This routine is the lock free version of the API invoked to release a 9093 * completion-queue event back into the free pool. 9094 **/ 9095 void 9096 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9097 struct lpfc_cq_event *cq_event) 9098 { 9099 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); 9100 } 9101 9102 /** 9103 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool 9104 * @phba: pointer to lpfc hba data structure. 9105 * @cq_event: pointer to the completion queue event to be freed. 9106 * 9107 * This routine is the lock version of the API invoked to release a 9108 * completion-queue event back into the free pool. 9109 **/ 9110 void 9111 lpfc_sli4_cq_event_release(struct lpfc_hba *phba, 9112 struct lpfc_cq_event *cq_event) 9113 { 9114 unsigned long iflags; 9115 spin_lock_irqsave(&phba->hbalock, iflags); 9116 __lpfc_sli4_cq_event_release(phba, cq_event); 9117 spin_unlock_irqrestore(&phba->hbalock, iflags); 9118 } 9119 9120 /** 9121 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool 9122 * @phba: pointer to lpfc hba data structure. 9123 * 9124 * This routine is to free all the pending completion-queue events to the 9125 * back into the free pool for device reset. 9126 **/ 9127 static void 9128 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) 9129 { 9130 LIST_HEAD(cqelist); 9131 struct lpfc_cq_event *cqe; 9132 unsigned long iflags; 9133 9134 /* Retrieve all the pending WCQEs from pending WCQE lists */ 9135 spin_lock_irqsave(&phba->hbalock, iflags); 9136 /* Pending FCP XRI abort events */ 9137 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, 9138 &cqelist); 9139 /* Pending ELS XRI abort events */ 9140 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, 9141 &cqelist); 9142 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 9143 /* Pending NVME XRI abort events */ 9144 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, 9145 &cqelist); 9146 } 9147 /* Pending asynnc events */ 9148 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, 9149 &cqelist); 9150 spin_unlock_irqrestore(&phba->hbalock, iflags); 9151 9152 while (!list_empty(&cqelist)) { 9153 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); 9154 lpfc_sli4_cq_event_release(phba, cqe); 9155 } 9156 } 9157 9158 /** 9159 * lpfc_pci_function_reset - Reset pci function. 9160 * @phba: pointer to lpfc hba data structure. 9161 * 9162 * This routine is invoked to request a PCI function reset. It will destroys 9163 * all resources assigned to the PCI function which originates this request. 9164 * 9165 * Return codes 9166 * 0 - successful 9167 * -ENOMEM - No available memory 9168 * -EIO - The mailbox failed to complete successfully. 9169 **/ 9170 int 9171 lpfc_pci_function_reset(struct lpfc_hba *phba) 9172 { 9173 LPFC_MBOXQ_t *mboxq; 9174 uint32_t rc = 0, if_type; 9175 uint32_t shdr_status, shdr_add_status; 9176 uint32_t rdy_chk; 9177 uint32_t port_reset = 0; 9178 union lpfc_sli4_cfg_shdr *shdr; 9179 struct lpfc_register reg_data; 9180 uint16_t devid; 9181 9182 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9183 switch (if_type) { 9184 case LPFC_SLI_INTF_IF_TYPE_0: 9185 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, 9186 GFP_KERNEL); 9187 if (!mboxq) { 9188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9189 "0494 Unable to allocate memory for " 9190 "issuing SLI_FUNCTION_RESET mailbox " 9191 "command\n"); 9192 return -ENOMEM; 9193 } 9194 9195 /* Setup PCI function reset mailbox-ioctl command */ 9196 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 9197 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, 9198 LPFC_SLI4_MBX_EMBED); 9199 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 9200 shdr = (union lpfc_sli4_cfg_shdr *) 9201 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; 9202 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); 9203 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, 9204 &shdr->response); 9205 if (rc != MBX_TIMEOUT) 9206 mempool_free(mboxq, phba->mbox_mem_pool); 9207 if (shdr_status || shdr_add_status || rc) { 9208 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9209 "0495 SLI_FUNCTION_RESET mailbox " 9210 "failed with status x%x add_status x%x," 9211 " mbx status x%x\n", 9212 shdr_status, shdr_add_status, rc); 9213 rc = -ENXIO; 9214 } 9215 break; 9216 case LPFC_SLI_INTF_IF_TYPE_2: 9217 wait: 9218 /* 9219 * Poll the Port Status Register and wait for RDY for 9220 * up to 30 seconds. If the port doesn't respond, treat 9221 * it as an error. 9222 */ 9223 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { 9224 if (lpfc_readl(phba->sli4_hba.u.if_type2. 9225 STATUSregaddr, ®_data.word0)) { 9226 rc = -ENODEV; 9227 goto out; 9228 } 9229 if (bf_get(lpfc_sliport_status_rdy, ®_data)) 9230 break; 9231 msleep(20); 9232 } 9233 9234 if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { 9235 phba->work_status[0] = readl( 9236 phba->sli4_hba.u.if_type2.ERR1regaddr); 9237 phba->work_status[1] = readl( 9238 phba->sli4_hba.u.if_type2.ERR2regaddr); 9239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9240 "2890 Port not ready, port status reg " 9241 "0x%x error 1=0x%x, error 2=0x%x\n", 9242 reg_data.word0, 9243 phba->work_status[0], 9244 phba->work_status[1]); 9245 rc = -ENODEV; 9246 goto out; 9247 } 9248 9249 if (!port_reset) { 9250 /* 9251 * Reset the port now 9252 */ 9253 reg_data.word0 = 0; 9254 bf_set(lpfc_sliport_ctrl_end, ®_data, 9255 LPFC_SLIPORT_LITTLE_ENDIAN); 9256 bf_set(lpfc_sliport_ctrl_ip, ®_data, 9257 LPFC_SLIPORT_INIT_PORT); 9258 writel(reg_data.word0, phba->sli4_hba.u.if_type2. 9259 CTRLregaddr); 9260 /* flush */ 9261 pci_read_config_word(phba->pcidev, 9262 PCI_DEVICE_ID, &devid); 9263 9264 port_reset = 1; 9265 msleep(20); 9266 goto wait; 9267 } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { 9268 rc = -ENODEV; 9269 goto out; 9270 } 9271 break; 9272 9273 case LPFC_SLI_INTF_IF_TYPE_1: 9274 default: 9275 break; 9276 } 9277 9278 out: 9279 /* Catch the not-ready port failure after a port reset. */ 9280 if (rc) { 9281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9282 "3317 HBA not functional: IP Reset Failed " 9283 "try: echo fw_reset > board_mode\n"); 9284 rc = -ENODEV; 9285 } 9286 9287 return rc; 9288 } 9289 9290 /** 9291 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. 9292 * @phba: pointer to lpfc hba data structure. 9293 * 9294 * This routine is invoked to set up the PCI device memory space for device 9295 * with SLI-4 interface spec. 9296 * 9297 * Return codes 9298 * 0 - successful 9299 * other values - error 9300 **/ 9301 static int 9302 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) 9303 { 9304 struct pci_dev *pdev; 9305 unsigned long bar0map_len, bar1map_len, bar2map_len; 9306 int error = -ENODEV; 9307 uint32_t if_type; 9308 9309 /* Obtain PCI device reference */ 9310 if (!phba->pcidev) 9311 return error; 9312 else 9313 pdev = phba->pcidev; 9314 9315 /* Set the device DMA mask size */ 9316 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 9317 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { 9318 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 9319 || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { 9320 return error; 9321 } 9322 } 9323 9324 /* 9325 * The BARs and register set definitions and offset locations are 9326 * dependent on the if_type. 9327 */ 9328 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, 9329 &phba->sli4_hba.sli_intf.word0)) { 9330 return error; 9331 } 9332 9333 /* There is no SLI3 failback for SLI4 devices. */ 9334 if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != 9335 LPFC_SLI_INTF_VALID) { 9336 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9337 "2894 SLI_INTF reg contents invalid " 9338 "sli_intf reg 0x%x\n", 9339 phba->sli4_hba.sli_intf.word0); 9340 return error; 9341 } 9342 9343 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9344 /* 9345 * Get the bus address of SLI4 device Bar regions and the 9346 * number of bytes required by each mapping. The mapping of the 9347 * particular PCI BARs regions is dependent on the type of 9348 * SLI4 device. 9349 */ 9350 if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { 9351 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); 9352 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); 9353 9354 /* 9355 * Map SLI4 PCI Config Space Register base to a kernel virtual 9356 * addr 9357 */ 9358 phba->sli4_hba.conf_regs_memmap_p = 9359 ioremap(phba->pci_bar0_map, bar0map_len); 9360 if (!phba->sli4_hba.conf_regs_memmap_p) { 9361 dev_printk(KERN_ERR, &pdev->dev, 9362 "ioremap failed for SLI4 PCI config " 9363 "registers.\n"); 9364 goto out; 9365 } 9366 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; 9367 /* Set up BAR0 PCI config space register memory map */ 9368 lpfc_sli4_bar0_register_memmap(phba, if_type); 9369 } else { 9370 phba->pci_bar0_map = pci_resource_start(pdev, 1); 9371 bar0map_len = pci_resource_len(pdev, 1); 9372 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) { 9373 dev_printk(KERN_ERR, &pdev->dev, 9374 "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); 9375 goto out; 9376 } 9377 phba->sli4_hba.conf_regs_memmap_p = 9378 ioremap(phba->pci_bar0_map, bar0map_len); 9379 if (!phba->sli4_hba.conf_regs_memmap_p) { 9380 dev_printk(KERN_ERR, &pdev->dev, 9381 "ioremap failed for SLI4 PCI config " 9382 "registers.\n"); 9383 goto out; 9384 } 9385 lpfc_sli4_bar0_register_memmap(phba, if_type); 9386 } 9387 9388 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9389 (pci_resource_start(pdev, PCI_64BIT_BAR2))) { 9390 /* 9391 * Map SLI4 if type 0 HBA Control Register base to a kernel 9392 * virtual address and setup the registers. 9393 */ 9394 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); 9395 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); 9396 phba->sli4_hba.ctrl_regs_memmap_p = 9397 ioremap(phba->pci_bar1_map, bar1map_len); 9398 if (!phba->sli4_hba.ctrl_regs_memmap_p) { 9399 dev_printk(KERN_ERR, &pdev->dev, 9400 "ioremap failed for SLI4 HBA control registers.\n"); 9401 goto out_iounmap_conf; 9402 } 9403 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p; 9404 lpfc_sli4_bar1_register_memmap(phba); 9405 } 9406 9407 if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) && 9408 (pci_resource_start(pdev, PCI_64BIT_BAR4))) { 9409 /* 9410 * Map SLI4 if type 0 HBA Doorbell Register base to a kernel 9411 * virtual address and setup the registers. 9412 */ 9413 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); 9414 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); 9415 phba->sli4_hba.drbl_regs_memmap_p = 9416 ioremap(phba->pci_bar2_map, bar2map_len); 9417 if (!phba->sli4_hba.drbl_regs_memmap_p) { 9418 dev_printk(KERN_ERR, &pdev->dev, 9419 "ioremap failed for SLI4 HBA doorbell registers.\n"); 9420 goto out_iounmap_ctrl; 9421 } 9422 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; 9423 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); 9424 if (error) 9425 goto out_iounmap_all; 9426 } 9427 9428 return 0; 9429 9430 out_iounmap_all: 9431 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9432 out_iounmap_ctrl: 9433 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9434 out_iounmap_conf: 9435 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9436 out: 9437 return error; 9438 } 9439 9440 /** 9441 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. 9442 * @phba: pointer to lpfc hba data structure. 9443 * 9444 * This routine is invoked to unset the PCI device memory space for device 9445 * with SLI-4 interface spec. 9446 **/ 9447 static void 9448 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) 9449 { 9450 uint32_t if_type; 9451 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); 9452 9453 switch (if_type) { 9454 case LPFC_SLI_INTF_IF_TYPE_0: 9455 iounmap(phba->sli4_hba.drbl_regs_memmap_p); 9456 iounmap(phba->sli4_hba.ctrl_regs_memmap_p); 9457 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9458 break; 9459 case LPFC_SLI_INTF_IF_TYPE_2: 9460 iounmap(phba->sli4_hba.conf_regs_memmap_p); 9461 break; 9462 case LPFC_SLI_INTF_IF_TYPE_1: 9463 default: 9464 dev_printk(KERN_ERR, &phba->pcidev->dev, 9465 "FATAL - unsupported SLI4 interface type - %d\n", 9466 if_type); 9467 break; 9468 } 9469 } 9470 9471 /** 9472 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device 9473 * @phba: pointer to lpfc hba data structure. 9474 * 9475 * This routine is invoked to enable the MSI-X interrupt vectors to device 9476 * with SLI-3 interface specs. 9477 * 9478 * Return codes 9479 * 0 - successful 9480 * other values - error 9481 **/ 9482 static int 9483 lpfc_sli_enable_msix(struct lpfc_hba *phba) 9484 { 9485 int rc; 9486 LPFC_MBOXQ_t *pmb; 9487 9488 /* Set up MSI-X multi-message vectors */ 9489 rc = pci_alloc_irq_vectors(phba->pcidev, 9490 LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); 9491 if (rc < 0) { 9492 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9493 "0420 PCI enable MSI-X failed (%d)\n", rc); 9494 goto vec_fail_out; 9495 } 9496 9497 /* 9498 * Assign MSI-X vectors to interrupt handlers 9499 */ 9500 9501 /* vector-0 is associated to slow-path handler */ 9502 rc = request_irq(pci_irq_vector(phba->pcidev, 0), 9503 &lpfc_sli_sp_intr_handler, 0, 9504 LPFC_SP_DRIVER_HANDLER_NAME, phba); 9505 if (rc) { 9506 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9507 "0421 MSI-X slow-path request_irq failed " 9508 "(%d)\n", rc); 9509 goto msi_fail_out; 9510 } 9511 9512 /* vector-1 is associated to fast-path handler */ 9513 rc = request_irq(pci_irq_vector(phba->pcidev, 1), 9514 &lpfc_sli_fp_intr_handler, 0, 9515 LPFC_FP_DRIVER_HANDLER_NAME, phba); 9516 9517 if (rc) { 9518 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9519 "0429 MSI-X fast-path request_irq failed " 9520 "(%d)\n", rc); 9521 goto irq_fail_out; 9522 } 9523 9524 /* 9525 * Configure HBA MSI-X attention conditions to messages 9526 */ 9527 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 9528 9529 if (!pmb) { 9530 rc = -ENOMEM; 9531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9532 "0474 Unable to allocate memory for issuing " 9533 "MBOX_CONFIG_MSI command\n"); 9534 goto mem_fail_out; 9535 } 9536 rc = lpfc_config_msi(phba, pmb); 9537 if (rc) 9538 goto mbx_fail_out; 9539 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 9540 if (rc != MBX_SUCCESS) { 9541 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 9542 "0351 Config MSI mailbox command failed, " 9543 "mbxCmd x%x, mbxStatus x%x\n", 9544 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); 9545 goto mbx_fail_out; 9546 } 9547 9548 /* Free memory allocated for mailbox command */ 9549 mempool_free(pmb, phba->mbox_mem_pool); 9550 return rc; 9551 9552 mbx_fail_out: 9553 /* Free memory allocated for mailbox command */ 9554 mempool_free(pmb, phba->mbox_mem_pool); 9555 9556 mem_fail_out: 9557 /* free the irq already requested */ 9558 free_irq(pci_irq_vector(phba->pcidev, 1), phba); 9559 9560 irq_fail_out: 9561 /* free the irq already requested */ 9562 free_irq(pci_irq_vector(phba->pcidev, 0), phba); 9563 9564 msi_fail_out: 9565 /* Unconfigure MSI-X capability structure */ 9566 pci_free_irq_vectors(phba->pcidev); 9567 9568 vec_fail_out: 9569 return rc; 9570 } 9571 9572 /** 9573 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. 9574 * @phba: pointer to lpfc hba data structure. 9575 * 9576 * This routine is invoked to enable the MSI interrupt mode to device with 9577 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to 9578 * enable the MSI vector. The device driver is responsible for calling the 9579 * request_irq() to register MSI vector with a interrupt the handler, which 9580 * is done in this function. 9581 * 9582 * Return codes 9583 * 0 - successful 9584 * other values - error 9585 */ 9586 static int 9587 lpfc_sli_enable_msi(struct lpfc_hba *phba) 9588 { 9589 int rc; 9590 9591 rc = pci_enable_msi(phba->pcidev); 9592 if (!rc) 9593 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9594 "0462 PCI enable MSI mode success.\n"); 9595 else { 9596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9597 "0471 PCI enable MSI mode failed (%d)\n", rc); 9598 return rc; 9599 } 9600 9601 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9602 0, LPFC_DRIVER_NAME, phba); 9603 if (rc) { 9604 pci_disable_msi(phba->pcidev); 9605 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9606 "0478 MSI request_irq failed (%d)\n", rc); 9607 } 9608 return rc; 9609 } 9610 9611 /** 9612 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. 9613 * @phba: pointer to lpfc hba data structure. 9614 * 9615 * This routine is invoked to enable device interrupt and associate driver's 9616 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface 9617 * spec. Depends on the interrupt mode configured to the driver, the driver 9618 * will try to fallback from the configured interrupt mode to an interrupt 9619 * mode which is supported by the platform, kernel, and device in the order 9620 * of: 9621 * MSI-X -> MSI -> IRQ. 9622 * 9623 * Return codes 9624 * 0 - successful 9625 * other values - error 9626 **/ 9627 static uint32_t 9628 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9629 { 9630 uint32_t intr_mode = LPFC_INTR_ERROR; 9631 int retval; 9632 9633 if (cfg_mode == 2) { 9634 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 9635 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); 9636 if (!retval) { 9637 /* Now, try to enable MSI-X interrupt mode */ 9638 retval = lpfc_sli_enable_msix(phba); 9639 if (!retval) { 9640 /* Indicate initialization to MSI-X mode */ 9641 phba->intr_type = MSIX; 9642 intr_mode = 2; 9643 } 9644 } 9645 } 9646 9647 /* Fallback to MSI if MSI-X initialization failed */ 9648 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9649 retval = lpfc_sli_enable_msi(phba); 9650 if (!retval) { 9651 /* Indicate initialization to MSI mode */ 9652 phba->intr_type = MSI; 9653 intr_mode = 1; 9654 } 9655 } 9656 9657 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9658 if (phba->intr_type == NONE) { 9659 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, 9660 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9661 if (!retval) { 9662 /* Indicate initialization to INTx mode */ 9663 phba->intr_type = INTx; 9664 intr_mode = 0; 9665 } 9666 } 9667 return intr_mode; 9668 } 9669 9670 /** 9671 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. 9672 * @phba: pointer to lpfc hba data structure. 9673 * 9674 * This routine is invoked to disable device interrupt and disassociate the 9675 * driver's interrupt handler(s) from interrupt vector(s) to device with 9676 * SLI-3 interface spec. Depending on the interrupt mode, the driver will 9677 * release the interrupt vector(s) for the message signaled interrupt. 9678 **/ 9679 static void 9680 lpfc_sli_disable_intr(struct lpfc_hba *phba) 9681 { 9682 int nr_irqs, i; 9683 9684 if (phba->intr_type == MSIX) 9685 nr_irqs = LPFC_MSIX_VECTORS; 9686 else 9687 nr_irqs = 1; 9688 9689 for (i = 0; i < nr_irqs; i++) 9690 free_irq(pci_irq_vector(phba->pcidev, i), phba); 9691 pci_free_irq_vectors(phba->pcidev); 9692 9693 /* Reset interrupt management states */ 9694 phba->intr_type = NONE; 9695 phba->sli.slistat.sli_intr = 0; 9696 } 9697 9698 /** 9699 * lpfc_cpu_affinity_check - Check vector CPU affinity mappings 9700 * @phba: pointer to lpfc hba data structure. 9701 * @vectors: number of msix vectors allocated. 9702 * 9703 * The routine will figure out the CPU affinity assignment for every 9704 * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated 9705 * with a pointer to the CPU mask that defines ALL the CPUs this vector 9706 * can be associated with. If the vector can be unquely associated with 9707 * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. 9708 * In addition, the CPU to IO channel mapping will be calculated 9709 * and the phba->sli4_hba.cpu_map array will reflect this. 9710 */ 9711 static void 9712 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) 9713 { 9714 struct lpfc_vector_map_info *cpup; 9715 int index = 0; 9716 int vec = 0; 9717 int cpu; 9718 #ifdef CONFIG_X86 9719 struct cpuinfo_x86 *cpuinfo; 9720 #endif 9721 9722 /* Init cpu_map array */ 9723 memset(phba->sli4_hba.cpu_map, 0xff, 9724 (sizeof(struct lpfc_vector_map_info) * 9725 phba->sli4_hba.num_present_cpu)); 9726 9727 /* Update CPU map with physical id and core id of each CPU */ 9728 cpup = phba->sli4_hba.cpu_map; 9729 for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { 9730 #ifdef CONFIG_X86 9731 cpuinfo = &cpu_data(cpu); 9732 cpup->phys_id = cpuinfo->phys_proc_id; 9733 cpup->core_id = cpuinfo->cpu_core_id; 9734 #else 9735 /* No distinction between CPUs for other platforms */ 9736 cpup->phys_id = 0; 9737 cpup->core_id = 0; 9738 #endif 9739 cpup->channel_id = index; /* For now round robin */ 9740 cpup->irq = pci_irq_vector(phba->pcidev, vec); 9741 vec++; 9742 if (vec >= vectors) 9743 vec = 0; 9744 index++; 9745 if (index >= phba->cfg_fcp_io_channel) 9746 index = 0; 9747 cpup++; 9748 } 9749 } 9750 9751 9752 /** 9753 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device 9754 * @phba: pointer to lpfc hba data structure. 9755 * 9756 * This routine is invoked to enable the MSI-X interrupt vectors to device 9757 * with SLI-4 interface spec. 9758 * 9759 * Return codes 9760 * 0 - successful 9761 * other values - error 9762 **/ 9763 static int 9764 lpfc_sli4_enable_msix(struct lpfc_hba *phba) 9765 { 9766 int vectors, rc, index; 9767 char *name; 9768 9769 /* Set up MSI-X multi-message vectors */ 9770 vectors = phba->io_channel_irqs; 9771 if (phba->cfg_fof) 9772 vectors++; 9773 9774 rc = pci_alloc_irq_vectors(phba->pcidev, 9775 (phba->nvmet_support) ? 1 : 2, 9776 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 9777 if (rc < 0) { 9778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9779 "0484 PCI enable MSI-X failed (%d)\n", rc); 9780 goto vec_fail_out; 9781 } 9782 vectors = rc; 9783 9784 /* Assign MSI-X vectors to interrupt handlers */ 9785 for (index = 0; index < vectors; index++) { 9786 name = phba->sli4_hba.hba_eq_hdl[index].handler_name; 9787 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); 9788 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, 9789 LPFC_DRIVER_HANDLER_NAME"%d", index); 9790 9791 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9792 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9793 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); 9794 if (phba->cfg_fof && (index == (vectors - 1))) 9795 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9796 &lpfc_sli4_fof_intr_handler, 0, 9797 name, 9798 &phba->sli4_hba.hba_eq_hdl[index]); 9799 else 9800 rc = request_irq(pci_irq_vector(phba->pcidev, index), 9801 &lpfc_sli4_hba_intr_handler, 0, 9802 name, 9803 &phba->sli4_hba.hba_eq_hdl[index]); 9804 if (rc) { 9805 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9806 "0486 MSI-X fast-path (%d) " 9807 "request_irq failed (%d)\n", index, rc); 9808 goto cfg_fail_out; 9809 } 9810 } 9811 9812 if (phba->cfg_fof) 9813 vectors--; 9814 9815 if (vectors != phba->io_channel_irqs) { 9816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 9817 "3238 Reducing IO channels to match number of " 9818 "MSI-X vectors, requested %d got %d\n", 9819 phba->io_channel_irqs, vectors); 9820 if (phba->cfg_fcp_io_channel > vectors) 9821 phba->cfg_fcp_io_channel = vectors; 9822 if (phba->cfg_nvme_io_channel > vectors) 9823 phba->cfg_nvme_io_channel = vectors; 9824 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) 9825 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 9826 else 9827 phba->io_channel_irqs = phba->cfg_nvme_io_channel; 9828 } 9829 lpfc_cpu_affinity_check(phba, vectors); 9830 9831 return rc; 9832 9833 cfg_fail_out: 9834 /* free the irq already requested */ 9835 for (--index; index >= 0; index--) 9836 free_irq(pci_irq_vector(phba->pcidev, index), 9837 &phba->sli4_hba.hba_eq_hdl[index]); 9838 9839 /* Unconfigure MSI-X capability structure */ 9840 pci_free_irq_vectors(phba->pcidev); 9841 9842 vec_fail_out: 9843 return rc; 9844 } 9845 9846 /** 9847 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device 9848 * @phba: pointer to lpfc hba data structure. 9849 * 9850 * This routine is invoked to enable the MSI interrupt mode to device with 9851 * SLI-4 interface spec. The kernel function pci_enable_msi() is called 9852 * to enable the MSI vector. The device driver is responsible for calling 9853 * the request_irq() to register MSI vector with a interrupt the handler, 9854 * which is done in this function. 9855 * 9856 * Return codes 9857 * 0 - successful 9858 * other values - error 9859 **/ 9860 static int 9861 lpfc_sli4_enable_msi(struct lpfc_hba *phba) 9862 { 9863 int rc, index; 9864 9865 rc = pci_enable_msi(phba->pcidev); 9866 if (!rc) 9867 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9868 "0487 PCI enable MSI mode success.\n"); 9869 else { 9870 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 9871 "0488 PCI enable MSI mode failed (%d)\n", rc); 9872 return rc; 9873 } 9874 9875 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9876 0, LPFC_DRIVER_NAME, phba); 9877 if (rc) { 9878 pci_disable_msi(phba->pcidev); 9879 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 9880 "0490 MSI request_irq failed (%d)\n", rc); 9881 return rc; 9882 } 9883 9884 for (index = 0; index < phba->io_channel_irqs; index++) { 9885 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9886 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9887 } 9888 9889 if (phba->cfg_fof) { 9890 phba->sli4_hba.hba_eq_hdl[index].idx = index; 9891 phba->sli4_hba.hba_eq_hdl[index].phba = phba; 9892 } 9893 return 0; 9894 } 9895 9896 /** 9897 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device 9898 * @phba: pointer to lpfc hba data structure. 9899 * 9900 * This routine is invoked to enable device interrupt and associate driver's 9901 * interrupt handler(s) to interrupt vector(s) to device with SLI-4 9902 * interface spec. Depends on the interrupt mode configured to the driver, 9903 * the driver will try to fallback from the configured interrupt mode to an 9904 * interrupt mode which is supported by the platform, kernel, and device in 9905 * the order of: 9906 * MSI-X -> MSI -> IRQ. 9907 * 9908 * Return codes 9909 * 0 - successful 9910 * other values - error 9911 **/ 9912 static uint32_t 9913 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 9914 { 9915 uint32_t intr_mode = LPFC_INTR_ERROR; 9916 int retval, idx; 9917 9918 if (cfg_mode == 2) { 9919 /* Preparation before conf_msi mbox cmd */ 9920 retval = 0; 9921 if (!retval) { 9922 /* Now, try to enable MSI-X interrupt mode */ 9923 retval = lpfc_sli4_enable_msix(phba); 9924 if (!retval) { 9925 /* Indicate initialization to MSI-X mode */ 9926 phba->intr_type = MSIX; 9927 intr_mode = 2; 9928 } 9929 } 9930 } 9931 9932 /* Fallback to MSI if MSI-X initialization failed */ 9933 if (cfg_mode >= 1 && phba->intr_type == NONE) { 9934 retval = lpfc_sli4_enable_msi(phba); 9935 if (!retval) { 9936 /* Indicate initialization to MSI mode */ 9937 phba->intr_type = MSI; 9938 intr_mode = 1; 9939 } 9940 } 9941 9942 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 9943 if (phba->intr_type == NONE) { 9944 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, 9945 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 9946 if (!retval) { 9947 struct lpfc_hba_eq_hdl *eqhdl; 9948 9949 /* Indicate initialization to INTx mode */ 9950 phba->intr_type = INTx; 9951 intr_mode = 0; 9952 9953 for (idx = 0; idx < phba->io_channel_irqs; idx++) { 9954 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9955 eqhdl->idx = idx; 9956 eqhdl->phba = phba; 9957 atomic_set(&eqhdl->hba_eq_in_use, 1); 9958 } 9959 if (phba->cfg_fof) { 9960 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; 9961 eqhdl->idx = idx; 9962 eqhdl->phba = phba; 9963 atomic_set(&eqhdl->hba_eq_in_use, 1); 9964 } 9965 } 9966 } 9967 return intr_mode; 9968 } 9969 9970 /** 9971 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device 9972 * @phba: pointer to lpfc hba data structure. 9973 * 9974 * This routine is invoked to disable device interrupt and disassociate 9975 * the driver's interrupt handler(s) from interrupt vector(s) to device 9976 * with SLI-4 interface spec. Depending on the interrupt mode, the driver 9977 * will release the interrupt vector(s) for the message signaled interrupt. 9978 **/ 9979 static void 9980 lpfc_sli4_disable_intr(struct lpfc_hba *phba) 9981 { 9982 /* Disable the currently initialized interrupt mode */ 9983 if (phba->intr_type == MSIX) { 9984 int index; 9985 9986 /* Free up MSI-X multi-message vectors */ 9987 for (index = 0; index < phba->io_channel_irqs; index++) 9988 free_irq(pci_irq_vector(phba->pcidev, index), 9989 &phba->sli4_hba.hba_eq_hdl[index]); 9990 9991 if (phba->cfg_fof) 9992 free_irq(pci_irq_vector(phba->pcidev, index), 9993 &phba->sli4_hba.hba_eq_hdl[index]); 9994 } else { 9995 free_irq(phba->pcidev->irq, phba); 9996 } 9997 9998 pci_free_irq_vectors(phba->pcidev); 9999 10000 /* Reset interrupt management states */ 10001 phba->intr_type = NONE; 10002 phba->sli.slistat.sli_intr = 0; 10003 } 10004 10005 /** 10006 * lpfc_unset_hba - Unset SLI3 hba device initialization 10007 * @phba: pointer to lpfc hba data structure. 10008 * 10009 * This routine is invoked to unset the HBA device initialization steps to 10010 * a device with SLI-3 interface spec. 10011 **/ 10012 static void 10013 lpfc_unset_hba(struct lpfc_hba *phba) 10014 { 10015 struct lpfc_vport *vport = phba->pport; 10016 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 10017 10018 spin_lock_irq(shost->host_lock); 10019 vport->load_flag |= FC_UNLOADING; 10020 spin_unlock_irq(shost->host_lock); 10021 10022 kfree(phba->vpi_bmask); 10023 kfree(phba->vpi_ids); 10024 10025 lpfc_stop_hba_timers(phba); 10026 10027 phba->pport->work_port_events = 0; 10028 10029 lpfc_sli_hba_down(phba); 10030 10031 lpfc_sli_brdrestart(phba); 10032 10033 lpfc_sli_disable_intr(phba); 10034 10035 return; 10036 } 10037 10038 /** 10039 * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy 10040 * @phba: Pointer to HBA context object. 10041 * 10042 * This function is called in the SLI4 code path to wait for completion 10043 * of device's XRIs exchange busy. It will check the XRI exchange busy 10044 * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after 10045 * that, it will check the XRI exchange busy on outstanding FCP and ELS 10046 * I/Os every 30 seconds, log error message, and wait forever. Only when 10047 * all XRI exchange busy complete, the driver unload shall proceed with 10048 * invoking the function reset ioctl mailbox command to the CNA and the 10049 * the rest of the driver unload resource release. 10050 **/ 10051 static void 10052 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) 10053 { 10054 int wait_time = 0; 10055 int nvme_xri_cmpl = 1; 10056 int nvmet_xri_cmpl = 1; 10057 int fcp_xri_cmpl = 1; 10058 int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10059 10060 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10061 fcp_xri_cmpl = 10062 list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); 10063 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10064 nvme_xri_cmpl = 10065 list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); 10066 nvmet_xri_cmpl = 10067 list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10068 } 10069 10070 while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || 10071 !nvmet_xri_cmpl) { 10072 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { 10073 if (!nvme_xri_cmpl) 10074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10075 "6100 NVME XRI exchange busy " 10076 "wait time: %d seconds.\n", 10077 wait_time/1000); 10078 if (!fcp_xri_cmpl) 10079 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10080 "2877 FCP XRI exchange busy " 10081 "wait time: %d seconds.\n", 10082 wait_time/1000); 10083 if (!els_xri_cmpl) 10084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10085 "2878 ELS XRI exchange busy " 10086 "wait time: %d seconds.\n", 10087 wait_time/1000); 10088 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); 10089 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; 10090 } else { 10091 msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); 10092 wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; 10093 } 10094 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 10095 nvme_xri_cmpl = list_empty( 10096 &phba->sli4_hba.lpfc_abts_nvme_buf_list); 10097 nvmet_xri_cmpl = list_empty( 10098 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); 10099 } 10100 10101 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 10102 fcp_xri_cmpl = list_empty( 10103 &phba->sli4_hba.lpfc_abts_scsi_buf_list); 10104 10105 els_xri_cmpl = 10106 list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); 10107 10108 } 10109 } 10110 10111 /** 10112 * lpfc_sli4_hba_unset - Unset the fcoe hba 10113 * @phba: Pointer to HBA context object. 10114 * 10115 * This function is called in the SLI4 code path to reset the HBA's FCoE 10116 * function. The caller is not required to hold any lock. This routine 10117 * issues PCI function reset mailbox command to reset the FCoE function. 10118 * At the end of the function, it calls lpfc_hba_down_post function to 10119 * free any pending commands. 10120 **/ 10121 static void 10122 lpfc_sli4_hba_unset(struct lpfc_hba *phba) 10123 { 10124 int wait_cnt = 0; 10125 LPFC_MBOXQ_t *mboxq; 10126 struct pci_dev *pdev = phba->pcidev; 10127 10128 lpfc_stop_hba_timers(phba); 10129 phba->sli4_hba.intr_enable = 0; 10130 10131 /* 10132 * Gracefully wait out the potential current outstanding asynchronous 10133 * mailbox command. 10134 */ 10135 10136 /* First, block any pending async mailbox command from posted */ 10137 spin_lock_irq(&phba->hbalock); 10138 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; 10139 spin_unlock_irq(&phba->hbalock); 10140 /* Now, trying to wait it out if we can */ 10141 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10142 msleep(10); 10143 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) 10144 break; 10145 } 10146 /* Forcefully release the outstanding mailbox command if timed out */ 10147 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { 10148 spin_lock_irq(&phba->hbalock); 10149 mboxq = phba->sli.mbox_active; 10150 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; 10151 __lpfc_mbox_cmpl_put(phba, mboxq); 10152 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; 10153 phba->sli.mbox_active = NULL; 10154 spin_unlock_irq(&phba->hbalock); 10155 } 10156 10157 /* Abort all iocbs associated with the hba */ 10158 lpfc_sli_hba_iocb_abort(phba); 10159 10160 /* Wait for completion of device XRI exchange busy */ 10161 lpfc_sli4_xri_exchange_busy_wait(phba); 10162 10163 /* Disable PCI subsystem interrupt */ 10164 lpfc_sli4_disable_intr(phba); 10165 10166 /* Disable SR-IOV if enabled */ 10167 if (phba->cfg_sriov_nr_virtfn) 10168 pci_disable_sriov(pdev); 10169 10170 /* Stop kthread signal shall trigger work_done one more time */ 10171 kthread_stop(phba->worker_thread); 10172 10173 /* Unset the queues shared with the hardware then release all 10174 * allocated resources. 10175 */ 10176 lpfc_sli4_queue_unset(phba); 10177 lpfc_sli4_queue_destroy(phba); 10178 10179 /* Reset SLI4 HBA FCoE function */ 10180 lpfc_pci_function_reset(phba); 10181 10182 /* Stop the SLI4 device port */ 10183 phba->pport->work_port_events = 0; 10184 } 10185 10186 /** 10187 * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities. 10188 * @phba: Pointer to HBA context object. 10189 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10190 * 10191 * This function is called in the SLI4 code path to read the port's 10192 * sli4 capabilities. 10193 * 10194 * This function may be be called from any context that can block-wait 10195 * for the completion. The expectation is that this routine is called 10196 * typically from probe_one or from the online routine. 10197 **/ 10198 int 10199 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10200 { 10201 int rc; 10202 struct lpfc_mqe *mqe; 10203 struct lpfc_pc_sli4_params *sli4_params; 10204 uint32_t mbox_tmo; 10205 10206 rc = 0; 10207 mqe = &mboxq->u.mqe; 10208 10209 /* Read the port's SLI4 Parameters port capabilities */ 10210 lpfc_pc_sli4_params(mboxq); 10211 if (!phba->sli4_hba.intr_enable) 10212 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10213 else { 10214 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10215 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10216 } 10217 10218 if (unlikely(rc)) 10219 return 1; 10220 10221 sli4_params = &phba->sli4_hba.pc_sli4_params; 10222 sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params); 10223 sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params); 10224 sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params); 10225 sli4_params->featurelevel_1 = bf_get(featurelevel_1, 10226 &mqe->un.sli4_params); 10227 sli4_params->featurelevel_2 = bf_get(featurelevel_2, 10228 &mqe->un.sli4_params); 10229 sli4_params->proto_types = mqe->un.sli4_params.word3; 10230 sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len; 10231 sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params); 10232 sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params); 10233 sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params); 10234 sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params); 10235 sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params); 10236 sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params); 10237 sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params); 10238 sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params); 10239 sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params); 10240 sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params); 10241 sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params); 10242 sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params); 10243 sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params); 10244 sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params); 10245 sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params); 10246 sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params); 10247 sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params); 10248 sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params); 10249 sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params); 10250 10251 /* Make sure that sge_supp_len can be handled by the driver */ 10252 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10253 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10254 10255 return rc; 10256 } 10257 10258 /** 10259 * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. 10260 * @phba: Pointer to HBA context object. 10261 * @mboxq: Pointer to the mailboxq memory for the mailbox command response. 10262 * 10263 * This function is called in the SLI4 code path to read the port's 10264 * sli4 capabilities. 10265 * 10266 * This function may be be called from any context that can block-wait 10267 * for the completion. The expectation is that this routine is called 10268 * typically from probe_one or from the online routine. 10269 **/ 10270 int 10271 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) 10272 { 10273 int rc; 10274 struct lpfc_mqe *mqe = &mboxq->u.mqe; 10275 struct lpfc_pc_sli4_params *sli4_params; 10276 uint32_t mbox_tmo; 10277 int length; 10278 struct lpfc_sli4_parameters *mbx_sli4_parameters; 10279 10280 /* 10281 * By default, the driver assumes the SLI4 port requires RPI 10282 * header postings. The SLI4_PARAM response will correct this 10283 * assumption. 10284 */ 10285 phba->sli4_hba.rpi_hdrs_in_use = 1; 10286 10287 /* Read the port's SLI4 Config Parameters */ 10288 length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - 10289 sizeof(struct lpfc_sli4_cfg_mhdr)); 10290 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, 10291 LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, 10292 length, LPFC_SLI4_MBX_EMBED); 10293 if (!phba->sli4_hba.intr_enable) 10294 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); 10295 else { 10296 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); 10297 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); 10298 } 10299 if (unlikely(rc)) 10300 return rc; 10301 sli4_params = &phba->sli4_hba.pc_sli4_params; 10302 mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; 10303 sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); 10304 sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); 10305 sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); 10306 sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, 10307 mbx_sli4_parameters); 10308 sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, 10309 mbx_sli4_parameters); 10310 if (bf_get(cfg_phwq, mbx_sli4_parameters)) 10311 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; 10312 else 10313 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; 10314 sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; 10315 sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters); 10316 sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); 10317 sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); 10318 sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); 10319 sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); 10320 sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); 10321 sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); 10322 sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, 10323 mbx_sli4_parameters); 10324 sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); 10325 sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, 10326 mbx_sli4_parameters); 10327 phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); 10328 phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); 10329 phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && 10330 bf_get(cfg_xib, mbx_sli4_parameters)); 10331 10332 if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || 10333 !phba->nvme_support) { 10334 phba->nvme_support = 0; 10335 phba->nvmet_support = 0; 10336 phba->cfg_nvmet_mrq = 0; 10337 phba->cfg_nvme_io_channel = 0; 10338 phba->io_channel_irqs = phba->cfg_fcp_io_channel; 10339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, 10340 "6101 Disabling NVME support: " 10341 "Not supported by firmware: %d %d\n", 10342 bf_get(cfg_nvme, mbx_sli4_parameters), 10343 bf_get(cfg_xib, mbx_sli4_parameters)); 10344 10345 /* If firmware doesn't support NVME, just use SCSI support */ 10346 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) 10347 return -ENODEV; 10348 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; 10349 } 10350 10351 if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp) 10352 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; 10353 10354 if (bf_get(cfg_eqdr, mbx_sli4_parameters)) 10355 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; 10356 10357 /* Make sure that sge_supp_len can be handled by the driver */ 10358 if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) 10359 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; 10360 10361 /* 10362 * Issue IOs with CDB embedded in WQE to minimized the number 10363 * of DMAs the firmware has to do. Setting this to 1 also forces 10364 * the driver to use 128 bytes WQEs for FCP IOs. 10365 */ 10366 if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) 10367 phba->fcp_embed_io = 1; 10368 else 10369 phba->fcp_embed_io = 0; 10370 10371 /* 10372 * Check if the SLI port supports MDS Diagnostics 10373 */ 10374 if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) 10375 phba->mds_diags_support = 1; 10376 else 10377 phba->mds_diags_support = 0; 10378 return 0; 10379 } 10380 10381 /** 10382 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. 10383 * @pdev: pointer to PCI device 10384 * @pid: pointer to PCI device identifier 10385 * 10386 * This routine is to be called to attach a device with SLI-3 interface spec 10387 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10388 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 10389 * information of the device and driver to see if the driver state that it can 10390 * support this kind of device. If the match is successful, the driver core 10391 * invokes this routine. If this routine determines it can claim the HBA, it 10392 * does all the initialization that it needs to do to handle the HBA properly. 10393 * 10394 * Return code 10395 * 0 - driver can claim the device 10396 * negative value - driver can not claim the device 10397 **/ 10398 static int 10399 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) 10400 { 10401 struct lpfc_hba *phba; 10402 struct lpfc_vport *vport = NULL; 10403 struct Scsi_Host *shost = NULL; 10404 int error; 10405 uint32_t cfg_mode, intr_mode; 10406 10407 /* Allocate memory for HBA structure */ 10408 phba = lpfc_hba_alloc(pdev); 10409 if (!phba) 10410 return -ENOMEM; 10411 10412 /* Perform generic PCI device enabling operation */ 10413 error = lpfc_enable_pci_dev(phba); 10414 if (error) 10415 goto out_free_phba; 10416 10417 /* Set up SLI API function jump table for PCI-device group-0 HBAs */ 10418 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); 10419 if (error) 10420 goto out_disable_pci_dev; 10421 10422 /* Set up SLI-3 specific device PCI memory space */ 10423 error = lpfc_sli_pci_mem_setup(phba); 10424 if (error) { 10425 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10426 "1402 Failed to set up pci memory space.\n"); 10427 goto out_disable_pci_dev; 10428 } 10429 10430 /* Set up SLI-3 specific device driver resources */ 10431 error = lpfc_sli_driver_resource_setup(phba); 10432 if (error) { 10433 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10434 "1404 Failed to set up driver resource.\n"); 10435 goto out_unset_pci_mem_s3; 10436 } 10437 10438 /* Initialize and populate the iocb list per host */ 10439 10440 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); 10441 if (error) { 10442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10443 "1405 Failed to initialize iocb list.\n"); 10444 goto out_unset_driver_resource_s3; 10445 } 10446 10447 /* Set up common device driver resources */ 10448 error = lpfc_setup_driver_resource_phase2(phba); 10449 if (error) { 10450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10451 "1406 Failed to set up driver resource.\n"); 10452 goto out_free_iocb_list; 10453 } 10454 10455 /* Get the default values for Model Name and Description */ 10456 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 10457 10458 /* Create SCSI host to the physical port */ 10459 error = lpfc_create_shost(phba); 10460 if (error) { 10461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10462 "1407 Failed to create scsi host.\n"); 10463 goto out_unset_driver_resource; 10464 } 10465 10466 /* Configure sysfs attributes */ 10467 vport = phba->pport; 10468 error = lpfc_alloc_sysfs_attr(vport); 10469 if (error) { 10470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10471 "1476 Failed to allocate sysfs attr\n"); 10472 goto out_destroy_shost; 10473 } 10474 10475 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 10476 /* Now, trying to enable interrupt and bring up the device */ 10477 cfg_mode = phba->cfg_use_msi; 10478 while (true) { 10479 /* Put device to a known state before enabling interrupt */ 10480 lpfc_stop_port(phba); 10481 /* Configure and enable interrupt */ 10482 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); 10483 if (intr_mode == LPFC_INTR_ERROR) { 10484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10485 "0431 Failed to enable interrupt.\n"); 10486 error = -ENODEV; 10487 goto out_free_sysfs_attr; 10488 } 10489 /* SLI-3 HBA setup */ 10490 if (lpfc_sli_hba_setup(phba)) { 10491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10492 "1477 Failed to set up hba\n"); 10493 error = -ENODEV; 10494 goto out_remove_device; 10495 } 10496 10497 /* Wait 50ms for the interrupts of previous mailbox commands */ 10498 msleep(50); 10499 /* Check active interrupts on message signaled interrupts */ 10500 if (intr_mode == 0 || 10501 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 10502 /* Log the current active interrupt mode */ 10503 phba->intr_mode = intr_mode; 10504 lpfc_log_intr_mode(phba, intr_mode); 10505 break; 10506 } else { 10507 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10508 "0447 Configure interrupt mode (%d) " 10509 "failed active interrupt test.\n", 10510 intr_mode); 10511 /* Disable the current interrupt mode */ 10512 lpfc_sli_disable_intr(phba); 10513 /* Try next level of interrupt mode */ 10514 cfg_mode = --intr_mode; 10515 } 10516 } 10517 10518 /* Perform post initialization setup */ 10519 lpfc_post_init_setup(phba); 10520 10521 /* Check if there are static vports to be created. */ 10522 lpfc_create_static_vport(phba); 10523 10524 return 0; 10525 10526 out_remove_device: 10527 lpfc_unset_hba(phba); 10528 out_free_sysfs_attr: 10529 lpfc_free_sysfs_attr(vport); 10530 out_destroy_shost: 10531 lpfc_destroy_shost(phba); 10532 out_unset_driver_resource: 10533 lpfc_unset_driver_resource_phase2(phba); 10534 out_free_iocb_list: 10535 lpfc_free_iocb_list(phba); 10536 out_unset_driver_resource_s3: 10537 lpfc_sli_driver_resource_unset(phba); 10538 out_unset_pci_mem_s3: 10539 lpfc_sli_pci_mem_unset(phba); 10540 out_disable_pci_dev: 10541 lpfc_disable_pci_dev(phba); 10542 if (shost) 10543 scsi_host_put(shost); 10544 out_free_phba: 10545 lpfc_hba_free(phba); 10546 return error; 10547 } 10548 10549 /** 10550 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. 10551 * @pdev: pointer to PCI device 10552 * 10553 * This routine is to be called to disattach a device with SLI-3 interface 10554 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is 10555 * removed from PCI bus, it performs all the necessary cleanup for the HBA 10556 * device to be removed from the PCI subsystem properly. 10557 **/ 10558 static void 10559 lpfc_pci_remove_one_s3(struct pci_dev *pdev) 10560 { 10561 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10562 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 10563 struct lpfc_vport **vports; 10564 struct lpfc_hba *phba = vport->phba; 10565 int i; 10566 10567 spin_lock_irq(&phba->hbalock); 10568 vport->load_flag |= FC_UNLOADING; 10569 spin_unlock_irq(&phba->hbalock); 10570 10571 lpfc_free_sysfs_attr(vport); 10572 10573 /* Release all the vports against this physical port */ 10574 vports = lpfc_create_vport_work_array(phba); 10575 if (vports != NULL) 10576 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 10577 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 10578 continue; 10579 fc_vport_terminate(vports[i]->fc_vport); 10580 } 10581 lpfc_destroy_vport_work_array(phba, vports); 10582 10583 /* Remove FC host and then SCSI host with the physical port */ 10584 fc_remove_host(shost); 10585 scsi_remove_host(shost); 10586 10587 lpfc_cleanup(vport); 10588 10589 /* 10590 * Bring down the SLI Layer. This step disable all interrupts, 10591 * clears the rings, discards all mailbox commands, and resets 10592 * the HBA. 10593 */ 10594 10595 /* HBA interrupt will be disabled after this call */ 10596 lpfc_sli_hba_down(phba); 10597 /* Stop kthread signal shall trigger work_done one more time */ 10598 kthread_stop(phba->worker_thread); 10599 /* Final cleanup of txcmplq and reset the HBA */ 10600 lpfc_sli_brdrestart(phba); 10601 10602 kfree(phba->vpi_bmask); 10603 kfree(phba->vpi_ids); 10604 10605 lpfc_stop_hba_timers(phba); 10606 spin_lock_irq(&phba->hbalock); 10607 list_del_init(&vport->listentry); 10608 spin_unlock_irq(&phba->hbalock); 10609 10610 lpfc_debugfs_terminate(vport); 10611 10612 /* Disable SR-IOV if enabled */ 10613 if (phba->cfg_sriov_nr_virtfn) 10614 pci_disable_sriov(pdev); 10615 10616 /* Disable interrupt */ 10617 lpfc_sli_disable_intr(phba); 10618 10619 scsi_host_put(shost); 10620 10621 /* 10622 * Call scsi_free before mem_free since scsi bufs are released to their 10623 * corresponding pools here. 10624 */ 10625 lpfc_scsi_free(phba); 10626 lpfc_mem_free_all(phba); 10627 10628 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 10629 phba->hbqslimp.virt, phba->hbqslimp.phys); 10630 10631 /* Free resources associated with SLI2 interface */ 10632 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 10633 phba->slim2p.virt, phba->slim2p.phys); 10634 10635 /* unmap adapter SLIM and Control Registers */ 10636 iounmap(phba->ctrl_regs_memmap_p); 10637 iounmap(phba->slim_memmap_p); 10638 10639 lpfc_hba_free(phba); 10640 10641 pci_release_mem_regions(pdev); 10642 pci_disable_device(pdev); 10643 } 10644 10645 /** 10646 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt 10647 * @pdev: pointer to PCI device 10648 * @msg: power management message 10649 * 10650 * This routine is to be called from the kernel's PCI subsystem to support 10651 * system Power Management (PM) to device with SLI-3 interface spec. When 10652 * PM invokes this method, it quiesces the device by stopping the driver's 10653 * worker thread for the device, turning off device's interrupt and DMA, 10654 * and bring the device offline. Note that as the driver implements the 10655 * minimum PM requirements to a power-aware driver's PM support for the 10656 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 10657 * to the suspend() method call will be treated as SUSPEND and the driver will 10658 * fully reinitialize its device during resume() method call, the driver will 10659 * set device to PCI_D3hot state in PCI config space instead of setting it 10660 * according to the @msg provided by the PM. 10661 * 10662 * Return code 10663 * 0 - driver suspended the device 10664 * Error otherwise 10665 **/ 10666 static int 10667 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) 10668 { 10669 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10670 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10671 10672 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10673 "0473 PCI device Power Management suspend.\n"); 10674 10675 /* Bring down the device */ 10676 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10677 lpfc_offline(phba); 10678 kthread_stop(phba->worker_thread); 10679 10680 /* Disable interrupt from device */ 10681 lpfc_sli_disable_intr(phba); 10682 10683 /* Save device state to PCI config space */ 10684 pci_save_state(pdev); 10685 pci_set_power_state(pdev, PCI_D3hot); 10686 10687 return 0; 10688 } 10689 10690 /** 10691 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt 10692 * @pdev: pointer to PCI device 10693 * 10694 * This routine is to be called from the kernel's PCI subsystem to support 10695 * system Power Management (PM) to device with SLI-3 interface spec. When PM 10696 * invokes this method, it restores the device's PCI config space state and 10697 * fully reinitializes the device and brings it online. Note that as the 10698 * driver implements the minimum PM requirements to a power-aware driver's 10699 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, 10700 * FREEZE) to the suspend() method call will be treated as SUSPEND and the 10701 * driver will fully reinitialize its device during resume() method call, 10702 * the device will be set to PCI_D0 directly in PCI config space before 10703 * restoring the state. 10704 * 10705 * Return code 10706 * 0 - driver suspended the device 10707 * Error otherwise 10708 **/ 10709 static int 10710 lpfc_pci_resume_one_s3(struct pci_dev *pdev) 10711 { 10712 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10713 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10714 uint32_t intr_mode; 10715 int error; 10716 10717 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 10718 "0452 PCI device Power Management resume.\n"); 10719 10720 /* Restore device state from PCI config space */ 10721 pci_set_power_state(pdev, PCI_D0); 10722 pci_restore_state(pdev); 10723 10724 /* 10725 * As the new kernel behavior of pci_restore_state() API call clears 10726 * device saved_state flag, need to save the restored state again. 10727 */ 10728 pci_save_state(pdev); 10729 10730 if (pdev->is_busmaster) 10731 pci_set_master(pdev); 10732 10733 /* Startup the kernel thread for this host adapter. */ 10734 phba->worker_thread = kthread_run(lpfc_do_work, phba, 10735 "lpfc_worker_%d", phba->brd_no); 10736 if (IS_ERR(phba->worker_thread)) { 10737 error = PTR_ERR(phba->worker_thread); 10738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10739 "0434 PM resume failed to start worker " 10740 "thread: error=x%x.\n", error); 10741 return error; 10742 } 10743 10744 /* Configure and enable interrupt */ 10745 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10746 if (intr_mode == LPFC_INTR_ERROR) { 10747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10748 "0430 PM resume Failed to enable interrupt\n"); 10749 return -EIO; 10750 } else 10751 phba->intr_mode = intr_mode; 10752 10753 /* Restart HBA and bring it online */ 10754 lpfc_sli_brdrestart(phba); 10755 lpfc_online(phba); 10756 10757 /* Log the current active interrupt mode */ 10758 lpfc_log_intr_mode(phba, phba->intr_mode); 10759 10760 return 0; 10761 } 10762 10763 /** 10764 * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover 10765 * @phba: pointer to lpfc hba data structure. 10766 * 10767 * This routine is called to prepare the SLI3 device for PCI slot recover. It 10768 * aborts all the outstanding SCSI I/Os to the pci device. 10769 **/ 10770 static void 10771 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) 10772 { 10773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10774 "2723 PCI channel I/O abort preparing for recovery\n"); 10775 10776 /* 10777 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 10778 * and let the SCSI mid-layer to retry them to recover. 10779 */ 10780 lpfc_sli_abort_fcp_rings(phba); 10781 } 10782 10783 /** 10784 * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset 10785 * @phba: pointer to lpfc hba data structure. 10786 * 10787 * This routine is called to prepare the SLI3 device for PCI slot reset. It 10788 * disables the device interrupt and pci device, and aborts the internal FCP 10789 * pending I/Os. 10790 **/ 10791 static void 10792 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) 10793 { 10794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10795 "2710 PCI channel disable preparing for reset\n"); 10796 10797 /* Block any management I/Os to the device */ 10798 lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); 10799 10800 /* Block all SCSI devices' I/Os on the host */ 10801 lpfc_scsi_dev_block(phba); 10802 10803 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 10804 lpfc_sli_flush_fcp_rings(phba); 10805 10806 /* stop all timers */ 10807 lpfc_stop_hba_timers(phba); 10808 10809 /* Disable interrupt and pci device */ 10810 lpfc_sli_disable_intr(phba); 10811 pci_disable_device(phba->pcidev); 10812 } 10813 10814 /** 10815 * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable 10816 * @phba: pointer to lpfc hba data structure. 10817 * 10818 * This routine is called to prepare the SLI3 device for PCI slot permanently 10819 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 10820 * pending I/Os. 10821 **/ 10822 static void 10823 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) 10824 { 10825 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10826 "2711 PCI channel permanent disable for failure\n"); 10827 /* Block all SCSI devices' I/Os on the host */ 10828 lpfc_scsi_dev_block(phba); 10829 10830 /* stop all timers */ 10831 lpfc_stop_hba_timers(phba); 10832 10833 /* Clean up all driver's outstanding SCSI I/Os */ 10834 lpfc_sli_flush_fcp_rings(phba); 10835 } 10836 10837 /** 10838 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error 10839 * @pdev: pointer to PCI device. 10840 * @state: the current PCI connection state. 10841 * 10842 * This routine is called from the PCI subsystem for I/O error handling to 10843 * device with SLI-3 interface spec. This function is called by the PCI 10844 * subsystem after a PCI bus error affecting this device has been detected. 10845 * When this function is invoked, it will need to stop all the I/Os and 10846 * interrupt(s) to the device. Once that is done, it will return 10847 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery 10848 * as desired. 10849 * 10850 * Return codes 10851 * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link 10852 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 10853 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10854 **/ 10855 static pci_ers_result_t 10856 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) 10857 { 10858 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10859 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10860 10861 switch (state) { 10862 case pci_channel_io_normal: 10863 /* Non-fatal error, prepare for recovery */ 10864 lpfc_sli_prep_dev_for_recover(phba); 10865 return PCI_ERS_RESULT_CAN_RECOVER; 10866 case pci_channel_io_frozen: 10867 /* Fatal error, prepare for slot reset */ 10868 lpfc_sli_prep_dev_for_reset(phba); 10869 return PCI_ERS_RESULT_NEED_RESET; 10870 case pci_channel_io_perm_failure: 10871 /* Permanent failure, prepare for device down */ 10872 lpfc_sli_prep_dev_for_perm_failure(phba); 10873 return PCI_ERS_RESULT_DISCONNECT; 10874 default: 10875 /* Unknown state, prepare and request slot reset */ 10876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10877 "0472 Unknown PCI error state: x%x\n", state); 10878 lpfc_sli_prep_dev_for_reset(phba); 10879 return PCI_ERS_RESULT_NEED_RESET; 10880 } 10881 } 10882 10883 /** 10884 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. 10885 * @pdev: pointer to PCI device. 10886 * 10887 * This routine is called from the PCI subsystem for error handling to 10888 * device with SLI-3 interface spec. This is called after PCI bus has been 10889 * reset to restart the PCI card from scratch, as if from a cold-boot. 10890 * During the PCI subsystem error recovery, after driver returns 10891 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 10892 * recovery and then call this routine before calling the .resume method 10893 * to recover the device. This function will initialize the HBA device, 10894 * enable the interrupt, but it will just put the HBA to offline state 10895 * without passing any I/O traffic. 10896 * 10897 * Return codes 10898 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 10899 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 10900 */ 10901 static pci_ers_result_t 10902 lpfc_io_slot_reset_s3(struct pci_dev *pdev) 10903 { 10904 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10905 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10906 struct lpfc_sli *psli = &phba->sli; 10907 uint32_t intr_mode; 10908 10909 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 10910 if (pci_enable_device_mem(pdev)) { 10911 printk(KERN_ERR "lpfc: Cannot re-enable " 10912 "PCI device after reset.\n"); 10913 return PCI_ERS_RESULT_DISCONNECT; 10914 } 10915 10916 pci_restore_state(pdev); 10917 10918 /* 10919 * As the new kernel behavior of pci_restore_state() API call clears 10920 * device saved_state flag, need to save the restored state again. 10921 */ 10922 pci_save_state(pdev); 10923 10924 if (pdev->is_busmaster) 10925 pci_set_master(pdev); 10926 10927 spin_lock_irq(&phba->hbalock); 10928 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 10929 spin_unlock_irq(&phba->hbalock); 10930 10931 /* Configure and enable interrupt */ 10932 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); 10933 if (intr_mode == LPFC_INTR_ERROR) { 10934 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 10935 "0427 Cannot re-enable interrupt after " 10936 "slot reset.\n"); 10937 return PCI_ERS_RESULT_DISCONNECT; 10938 } else 10939 phba->intr_mode = intr_mode; 10940 10941 /* Take device offline, it will perform cleanup */ 10942 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 10943 lpfc_offline(phba); 10944 lpfc_sli_brdrestart(phba); 10945 10946 /* Log the current active interrupt mode */ 10947 lpfc_log_intr_mode(phba, phba->intr_mode); 10948 10949 return PCI_ERS_RESULT_RECOVERED; 10950 } 10951 10952 /** 10953 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. 10954 * @pdev: pointer to PCI device 10955 * 10956 * This routine is called from the PCI subsystem for error handling to device 10957 * with SLI-3 interface spec. It is called when kernel error recovery tells 10958 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 10959 * error recovery. After this call, traffic can start to flow from this device 10960 * again. 10961 */ 10962 static void 10963 lpfc_io_resume_s3(struct pci_dev *pdev) 10964 { 10965 struct Scsi_Host *shost = pci_get_drvdata(pdev); 10966 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 10967 10968 /* Bring device online, it will be no-op for non-fatal error resume */ 10969 lpfc_online(phba); 10970 10971 /* Clean up Advanced Error Reporting (AER) if needed */ 10972 if (phba->hba_flag & HBA_AER_ENABLED) 10973 pci_cleanup_aer_uncorrect_error_status(pdev); 10974 } 10975 10976 /** 10977 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve 10978 * @phba: pointer to lpfc hba data structure. 10979 * 10980 * returns the number of ELS/CT IOCBs to reserve 10981 **/ 10982 int 10983 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) 10984 { 10985 int max_xri = phba->sli4_hba.max_cfg_param.max_xri; 10986 10987 if (phba->sli_rev == LPFC_SLI_REV4) { 10988 if (max_xri <= 100) 10989 return 10; 10990 else if (max_xri <= 256) 10991 return 25; 10992 else if (max_xri <= 512) 10993 return 50; 10994 else if (max_xri <= 1024) 10995 return 100; 10996 else if (max_xri <= 1536) 10997 return 150; 10998 else if (max_xri <= 2048) 10999 return 200; 11000 else 11001 return 250; 11002 } else 11003 return 0; 11004 } 11005 11006 /** 11007 * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve 11008 * @phba: pointer to lpfc hba data structure. 11009 * 11010 * returns the number of ELS/CT + NVMET IOCBs to reserve 11011 **/ 11012 int 11013 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) 11014 { 11015 int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); 11016 11017 if (phba->nvmet_support) 11018 max_xri += LPFC_NVMET_BUF_POST; 11019 return max_xri; 11020 } 11021 11022 11023 /** 11024 * lpfc_write_firmware - attempt to write a firmware image to the port 11025 * @fw: pointer to firmware image returned from request_firmware. 11026 * @phba: pointer to lpfc hba data structure. 11027 * 11028 **/ 11029 static void 11030 lpfc_write_firmware(const struct firmware *fw, void *context) 11031 { 11032 struct lpfc_hba *phba = (struct lpfc_hba *)context; 11033 char fwrev[FW_REV_STR_SIZE]; 11034 struct lpfc_grp_hdr *image; 11035 struct list_head dma_buffer_list; 11036 int i, rc = 0; 11037 struct lpfc_dmabuf *dmabuf, *next; 11038 uint32_t offset = 0, temp_offset = 0; 11039 uint32_t magic_number, ftype, fid, fsize; 11040 11041 /* It can be null in no-wait mode, sanity check */ 11042 if (!fw) { 11043 rc = -ENXIO; 11044 goto out; 11045 } 11046 image = (struct lpfc_grp_hdr *)fw->data; 11047 11048 magic_number = be32_to_cpu(image->magic_number); 11049 ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); 11050 fid = bf_get_be32(lpfc_grp_hdr_id, image), 11051 fsize = be32_to_cpu(image->size); 11052 11053 INIT_LIST_HEAD(&dma_buffer_list); 11054 if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 && 11055 magic_number != LPFC_GROUP_OJECT_MAGIC_G6) || 11056 ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) { 11057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11058 "3022 Invalid FW image found. " 11059 "Magic:%x Type:%x ID:%x Size %d %zd\n", 11060 magic_number, ftype, fid, fsize, fw->size); 11061 rc = -EINVAL; 11062 goto release_out; 11063 } 11064 lpfc_decode_firmware_rev(phba, fwrev, 1); 11065 if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { 11066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11067 "3023 Updating Firmware, Current Version:%s " 11068 "New Version:%s\n", 11069 fwrev, image->revision); 11070 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { 11071 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), 11072 GFP_KERNEL); 11073 if (!dmabuf) { 11074 rc = -ENOMEM; 11075 goto release_out; 11076 } 11077 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, 11078 SLI4_PAGE_SIZE, 11079 &dmabuf->phys, 11080 GFP_KERNEL); 11081 if (!dmabuf->virt) { 11082 kfree(dmabuf); 11083 rc = -ENOMEM; 11084 goto release_out; 11085 } 11086 list_add_tail(&dmabuf->list, &dma_buffer_list); 11087 } 11088 while (offset < fw->size) { 11089 temp_offset = offset; 11090 list_for_each_entry(dmabuf, &dma_buffer_list, list) { 11091 if (temp_offset + SLI4_PAGE_SIZE > fw->size) { 11092 memcpy(dmabuf->virt, 11093 fw->data + temp_offset, 11094 fw->size - temp_offset); 11095 temp_offset = fw->size; 11096 break; 11097 } 11098 memcpy(dmabuf->virt, fw->data + temp_offset, 11099 SLI4_PAGE_SIZE); 11100 temp_offset += SLI4_PAGE_SIZE; 11101 } 11102 rc = lpfc_wr_object(phba, &dma_buffer_list, 11103 (fw->size - offset), &offset); 11104 if (rc) 11105 goto release_out; 11106 } 11107 rc = offset; 11108 } 11109 11110 release_out: 11111 list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { 11112 list_del(&dmabuf->list); 11113 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, 11114 dmabuf->virt, dmabuf->phys); 11115 kfree(dmabuf); 11116 } 11117 release_firmware(fw); 11118 out: 11119 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11120 "3024 Firmware update done: %d.\n", rc); 11121 return; 11122 } 11123 11124 /** 11125 * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade 11126 * @phba: pointer to lpfc hba data structure. 11127 * 11128 * This routine is called to perform Linux generic firmware upgrade on device 11129 * that supports such feature. 11130 **/ 11131 int 11132 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) 11133 { 11134 uint8_t file_name[ELX_MODEL_NAME_SIZE]; 11135 int ret; 11136 const struct firmware *fw; 11137 11138 /* Only supported on SLI4 interface type 2 for now */ 11139 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != 11140 LPFC_SLI_INTF_IF_TYPE_2) 11141 return -EPERM; 11142 11143 snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); 11144 11145 if (fw_upgrade == INT_FW_UPGRADE) { 11146 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, 11147 file_name, &phba->pcidev->dev, 11148 GFP_KERNEL, (void *)phba, 11149 lpfc_write_firmware); 11150 } else if (fw_upgrade == RUN_FW_UPGRADE) { 11151 ret = request_firmware(&fw, file_name, &phba->pcidev->dev); 11152 if (!ret) 11153 lpfc_write_firmware(fw, (void *)phba); 11154 } else { 11155 ret = -EINVAL; 11156 } 11157 11158 return ret; 11159 } 11160 11161 /** 11162 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys 11163 * @pdev: pointer to PCI device 11164 * @pid: pointer to PCI device identifier 11165 * 11166 * This routine is called from the kernel's PCI subsystem to device with 11167 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11168 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific 11169 * information of the device and driver to see if the driver state that it 11170 * can support this kind of device. If the match is successful, the driver 11171 * core invokes this routine. If this routine determines it can claim the HBA, 11172 * it does all the initialization that it needs to do to handle the HBA 11173 * properly. 11174 * 11175 * Return code 11176 * 0 - driver can claim the device 11177 * negative value - driver can not claim the device 11178 **/ 11179 static int 11180 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) 11181 { 11182 struct lpfc_hba *phba; 11183 struct lpfc_vport *vport = NULL; 11184 struct Scsi_Host *shost = NULL; 11185 int error; 11186 uint32_t cfg_mode, intr_mode; 11187 11188 /* Allocate memory for HBA structure */ 11189 phba = lpfc_hba_alloc(pdev); 11190 if (!phba) 11191 return -ENOMEM; 11192 11193 /* Perform generic PCI device enabling operation */ 11194 error = lpfc_enable_pci_dev(phba); 11195 if (error) 11196 goto out_free_phba; 11197 11198 /* Set up SLI API function jump table for PCI-device group-1 HBAs */ 11199 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); 11200 if (error) 11201 goto out_disable_pci_dev; 11202 11203 /* Set up SLI-4 specific device PCI memory space */ 11204 error = lpfc_sli4_pci_mem_setup(phba); 11205 if (error) { 11206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11207 "1410 Failed to set up pci memory space.\n"); 11208 goto out_disable_pci_dev; 11209 } 11210 11211 /* Set up SLI-4 Specific device driver resources */ 11212 error = lpfc_sli4_driver_resource_setup(phba); 11213 if (error) { 11214 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11215 "1412 Failed to set up driver resource.\n"); 11216 goto out_unset_pci_mem_s4; 11217 } 11218 11219 INIT_LIST_HEAD(&phba->active_rrq_list); 11220 INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); 11221 11222 /* Set up common device driver resources */ 11223 error = lpfc_setup_driver_resource_phase2(phba); 11224 if (error) { 11225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11226 "1414 Failed to set up driver resource.\n"); 11227 goto out_unset_driver_resource_s4; 11228 } 11229 11230 /* Get the default values for Model Name and Description */ 11231 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); 11232 11233 /* Create SCSI host to the physical port */ 11234 error = lpfc_create_shost(phba); 11235 if (error) { 11236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11237 "1415 Failed to create scsi host.\n"); 11238 goto out_unset_driver_resource; 11239 } 11240 11241 /* Configure sysfs attributes */ 11242 vport = phba->pport; 11243 error = lpfc_alloc_sysfs_attr(vport); 11244 if (error) { 11245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11246 "1416 Failed to allocate sysfs attr\n"); 11247 goto out_destroy_shost; 11248 } 11249 11250 shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ 11251 /* Now, trying to enable interrupt and bring up the device */ 11252 cfg_mode = phba->cfg_use_msi; 11253 11254 /* Put device to a known state before enabling interrupt */ 11255 lpfc_stop_port(phba); 11256 11257 /* Configure and enable interrupt */ 11258 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); 11259 if (intr_mode == LPFC_INTR_ERROR) { 11260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11261 "0426 Failed to enable interrupt.\n"); 11262 error = -ENODEV; 11263 goto out_free_sysfs_attr; 11264 } 11265 /* Default to single EQ for non-MSI-X */ 11266 if (phba->intr_type != MSIX) { 11267 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) 11268 phba->cfg_fcp_io_channel = 1; 11269 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { 11270 phba->cfg_nvme_io_channel = 1; 11271 if (phba->nvmet_support) 11272 phba->cfg_nvmet_mrq = 1; 11273 } 11274 phba->io_channel_irqs = 1; 11275 } 11276 11277 /* Set up SLI-4 HBA */ 11278 if (lpfc_sli4_hba_setup(phba)) { 11279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11280 "1421 Failed to set up hba\n"); 11281 error = -ENODEV; 11282 goto out_disable_intr; 11283 } 11284 11285 /* Log the current active interrupt mode */ 11286 phba->intr_mode = intr_mode; 11287 lpfc_log_intr_mode(phba, intr_mode); 11288 11289 /* Perform post initialization setup */ 11290 lpfc_post_init_setup(phba); 11291 11292 /* NVME support in FW earlier in the driver load corrects the 11293 * FC4 type making a check for nvme_support unnecessary. 11294 */ 11295 if ((phba->nvmet_support == 0) && 11296 (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { 11297 /* Create NVME binding with nvme_fc_transport. This 11298 * ensures the vport is initialized. If the localport 11299 * create fails, it should not unload the driver to 11300 * support field issues. 11301 */ 11302 error = lpfc_nvme_create_localport(vport); 11303 if (error) { 11304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11305 "6004 NVME registration failed, " 11306 "error x%x\n", 11307 error); 11308 } 11309 } 11310 11311 /* check for firmware upgrade or downgrade */ 11312 if (phba->cfg_request_firmware_upgrade) 11313 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); 11314 11315 /* Check if there are static vports to be created. */ 11316 lpfc_create_static_vport(phba); 11317 return 0; 11318 11319 out_disable_intr: 11320 lpfc_sli4_disable_intr(phba); 11321 out_free_sysfs_attr: 11322 lpfc_free_sysfs_attr(vport); 11323 out_destroy_shost: 11324 lpfc_destroy_shost(phba); 11325 out_unset_driver_resource: 11326 lpfc_unset_driver_resource_phase2(phba); 11327 out_unset_driver_resource_s4: 11328 lpfc_sli4_driver_resource_unset(phba); 11329 out_unset_pci_mem_s4: 11330 lpfc_sli4_pci_mem_unset(phba); 11331 out_disable_pci_dev: 11332 lpfc_disable_pci_dev(phba); 11333 if (shost) 11334 scsi_host_put(shost); 11335 out_free_phba: 11336 lpfc_hba_free(phba); 11337 return error; 11338 } 11339 11340 /** 11341 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem 11342 * @pdev: pointer to PCI device 11343 * 11344 * This routine is called from the kernel's PCI subsystem to device with 11345 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is 11346 * removed from PCI bus, it performs all the necessary cleanup for the HBA 11347 * device to be removed from the PCI subsystem properly. 11348 **/ 11349 static void 11350 lpfc_pci_remove_one_s4(struct pci_dev *pdev) 11351 { 11352 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11353 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 11354 struct lpfc_vport **vports; 11355 struct lpfc_hba *phba = vport->phba; 11356 int i; 11357 11358 /* Mark the device unloading flag */ 11359 spin_lock_irq(&phba->hbalock); 11360 vport->load_flag |= FC_UNLOADING; 11361 spin_unlock_irq(&phba->hbalock); 11362 11363 /* Free the HBA sysfs attributes */ 11364 lpfc_free_sysfs_attr(vport); 11365 11366 /* Release all the vports against this physical port */ 11367 vports = lpfc_create_vport_work_array(phba); 11368 if (vports != NULL) 11369 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { 11370 if (vports[i]->port_type == LPFC_PHYSICAL_PORT) 11371 continue; 11372 fc_vport_terminate(vports[i]->fc_vport); 11373 } 11374 lpfc_destroy_vport_work_array(phba, vports); 11375 11376 /* Remove FC host and then SCSI host with the physical port */ 11377 fc_remove_host(shost); 11378 scsi_remove_host(shost); 11379 11380 /* Perform ndlp cleanup on the physical port. The nvme and nvmet 11381 * localports are destroyed after to cleanup all transport memory. 11382 */ 11383 lpfc_cleanup(vport); 11384 lpfc_nvmet_destroy_targetport(phba); 11385 lpfc_nvme_destroy_localport(vport); 11386 11387 /* 11388 * Bring down the SLI Layer. This step disables all interrupts, 11389 * clears the rings, discards all mailbox commands, and resets 11390 * the HBA FCoE function. 11391 */ 11392 lpfc_debugfs_terminate(vport); 11393 lpfc_sli4_hba_unset(phba); 11394 11395 spin_lock_irq(&phba->hbalock); 11396 list_del_init(&vport->listentry); 11397 spin_unlock_irq(&phba->hbalock); 11398 11399 /* Perform scsi free before driver resource_unset since scsi 11400 * buffers are released to their corresponding pools here. 11401 */ 11402 lpfc_scsi_free(phba); 11403 lpfc_nvme_free(phba); 11404 lpfc_free_iocb_list(phba); 11405 11406 lpfc_sli4_driver_resource_unset(phba); 11407 11408 /* Unmap adapter Control and Doorbell registers */ 11409 lpfc_sli4_pci_mem_unset(phba); 11410 11411 /* Release PCI resources and disable device's PCI function */ 11412 scsi_host_put(shost); 11413 lpfc_disable_pci_dev(phba); 11414 11415 /* Finally, free the driver's device data structure */ 11416 lpfc_hba_free(phba); 11417 11418 return; 11419 } 11420 11421 /** 11422 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt 11423 * @pdev: pointer to PCI device 11424 * @msg: power management message 11425 * 11426 * This routine is called from the kernel's PCI subsystem to support system 11427 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes 11428 * this method, it quiesces the device by stopping the driver's worker 11429 * thread for the device, turning off device's interrupt and DMA, and bring 11430 * the device offline. Note that as the driver implements the minimum PM 11431 * requirements to a power-aware driver's PM support for suspend/resume -- all 11432 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 11433 * method call will be treated as SUSPEND and the driver will fully 11434 * reinitialize its device during resume() method call, the driver will set 11435 * device to PCI_D3hot state in PCI config space instead of setting it 11436 * according to the @msg provided by the PM. 11437 * 11438 * Return code 11439 * 0 - driver suspended the device 11440 * Error otherwise 11441 **/ 11442 static int 11443 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) 11444 { 11445 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11446 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11447 11448 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11449 "2843 PCI device Power Management suspend.\n"); 11450 11451 /* Bring down the device */ 11452 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11453 lpfc_offline(phba); 11454 kthread_stop(phba->worker_thread); 11455 11456 /* Disable interrupt from device */ 11457 lpfc_sli4_disable_intr(phba); 11458 lpfc_sli4_queue_destroy(phba); 11459 11460 /* Save device state to PCI config space */ 11461 pci_save_state(pdev); 11462 pci_set_power_state(pdev, PCI_D3hot); 11463 11464 return 0; 11465 } 11466 11467 /** 11468 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt 11469 * @pdev: pointer to PCI device 11470 * 11471 * This routine is called from the kernel's PCI subsystem to support system 11472 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes 11473 * this method, it restores the device's PCI config space state and fully 11474 * reinitializes the device and brings it online. Note that as the driver 11475 * implements the minimum PM requirements to a power-aware driver's PM for 11476 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) 11477 * to the suspend() method call will be treated as SUSPEND and the driver 11478 * will fully reinitialize its device during resume() method call, the device 11479 * will be set to PCI_D0 directly in PCI config space before restoring the 11480 * state. 11481 * 11482 * Return code 11483 * 0 - driver suspended the device 11484 * Error otherwise 11485 **/ 11486 static int 11487 lpfc_pci_resume_one_s4(struct pci_dev *pdev) 11488 { 11489 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11490 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11491 uint32_t intr_mode; 11492 int error; 11493 11494 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 11495 "0292 PCI device Power Management resume.\n"); 11496 11497 /* Restore device state from PCI config space */ 11498 pci_set_power_state(pdev, PCI_D0); 11499 pci_restore_state(pdev); 11500 11501 /* 11502 * As the new kernel behavior of pci_restore_state() API call clears 11503 * device saved_state flag, need to save the restored state again. 11504 */ 11505 pci_save_state(pdev); 11506 11507 if (pdev->is_busmaster) 11508 pci_set_master(pdev); 11509 11510 /* Startup the kernel thread for this host adapter. */ 11511 phba->worker_thread = kthread_run(lpfc_do_work, phba, 11512 "lpfc_worker_%d", phba->brd_no); 11513 if (IS_ERR(phba->worker_thread)) { 11514 error = PTR_ERR(phba->worker_thread); 11515 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11516 "0293 PM resume failed to start worker " 11517 "thread: error=x%x.\n", error); 11518 return error; 11519 } 11520 11521 /* Configure and enable interrupt */ 11522 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11523 if (intr_mode == LPFC_INTR_ERROR) { 11524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11525 "0294 PM resume Failed to enable interrupt\n"); 11526 return -EIO; 11527 } else 11528 phba->intr_mode = intr_mode; 11529 11530 /* Restart HBA and bring it online */ 11531 lpfc_sli_brdrestart(phba); 11532 lpfc_online(phba); 11533 11534 /* Log the current active interrupt mode */ 11535 lpfc_log_intr_mode(phba, phba->intr_mode); 11536 11537 return 0; 11538 } 11539 11540 /** 11541 * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover 11542 * @phba: pointer to lpfc hba data structure. 11543 * 11544 * This routine is called to prepare the SLI4 device for PCI slot recover. It 11545 * aborts all the outstanding SCSI I/Os to the pci device. 11546 **/ 11547 static void 11548 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) 11549 { 11550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11551 "2828 PCI channel I/O abort preparing for recovery\n"); 11552 /* 11553 * There may be errored I/Os through HBA, abort all I/Os on txcmplq 11554 * and let the SCSI mid-layer to retry them to recover. 11555 */ 11556 lpfc_sli_abort_fcp_rings(phba); 11557 } 11558 11559 /** 11560 * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset 11561 * @phba: pointer to lpfc hba data structure. 11562 * 11563 * This routine is called to prepare the SLI4 device for PCI slot reset. It 11564 * disables the device interrupt and pci device, and aborts the internal FCP 11565 * pending I/Os. 11566 **/ 11567 static void 11568 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) 11569 { 11570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11571 "2826 PCI channel disable preparing for reset\n"); 11572 11573 /* Block any management I/Os to the device */ 11574 lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); 11575 11576 /* Block all SCSI devices' I/Os on the host */ 11577 lpfc_scsi_dev_block(phba); 11578 11579 /* Flush all driver's outstanding SCSI I/Os as we are to reset */ 11580 lpfc_sli_flush_fcp_rings(phba); 11581 11582 /* stop all timers */ 11583 lpfc_stop_hba_timers(phba); 11584 11585 /* Disable interrupt and pci device */ 11586 lpfc_sli4_disable_intr(phba); 11587 lpfc_sli4_queue_destroy(phba); 11588 pci_disable_device(phba->pcidev); 11589 } 11590 11591 /** 11592 * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable 11593 * @phba: pointer to lpfc hba data structure. 11594 * 11595 * This routine is called to prepare the SLI4 device for PCI slot permanently 11596 * disabling. It blocks the SCSI transport layer traffic and flushes the FCP 11597 * pending I/Os. 11598 **/ 11599 static void 11600 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) 11601 { 11602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11603 "2827 PCI channel permanent disable for failure\n"); 11604 11605 /* Block all SCSI devices' I/Os on the host */ 11606 lpfc_scsi_dev_block(phba); 11607 11608 /* stop all timers */ 11609 lpfc_stop_hba_timers(phba); 11610 11611 /* Clean up all driver's outstanding SCSI I/Os */ 11612 lpfc_sli_flush_fcp_rings(phba); 11613 } 11614 11615 /** 11616 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device 11617 * @pdev: pointer to PCI device. 11618 * @state: the current PCI connection state. 11619 * 11620 * This routine is called from the PCI subsystem for error handling to device 11621 * with SLI-4 interface spec. This function is called by the PCI subsystem 11622 * after a PCI bus error affecting this device has been detected. When this 11623 * function is invoked, it will need to stop all the I/Os and interrupt(s) 11624 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET 11625 * for the PCI subsystem to perform proper recovery as desired. 11626 * 11627 * Return codes 11628 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11629 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11630 **/ 11631 static pci_ers_result_t 11632 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) 11633 { 11634 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11635 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11636 11637 switch (state) { 11638 case pci_channel_io_normal: 11639 /* Non-fatal error, prepare for recovery */ 11640 lpfc_sli4_prep_dev_for_recover(phba); 11641 return PCI_ERS_RESULT_CAN_RECOVER; 11642 case pci_channel_io_frozen: 11643 /* Fatal error, prepare for slot reset */ 11644 lpfc_sli4_prep_dev_for_reset(phba); 11645 return PCI_ERS_RESULT_NEED_RESET; 11646 case pci_channel_io_perm_failure: 11647 /* Permanent failure, prepare for device down */ 11648 lpfc_sli4_prep_dev_for_perm_failure(phba); 11649 return PCI_ERS_RESULT_DISCONNECT; 11650 default: 11651 /* Unknown state, prepare and request slot reset */ 11652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11653 "2825 Unknown PCI error state: x%x\n", state); 11654 lpfc_sli4_prep_dev_for_reset(phba); 11655 return PCI_ERS_RESULT_NEED_RESET; 11656 } 11657 } 11658 11659 /** 11660 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch 11661 * @pdev: pointer to PCI device. 11662 * 11663 * This routine is called from the PCI subsystem for error handling to device 11664 * with SLI-4 interface spec. It is called after PCI bus has been reset to 11665 * restart the PCI card from scratch, as if from a cold-boot. During the 11666 * PCI subsystem error recovery, after the driver returns 11667 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error 11668 * recovery and then call this routine before calling the .resume method to 11669 * recover the device. This function will initialize the HBA device, enable 11670 * the interrupt, but it will just put the HBA to offline state without 11671 * passing any I/O traffic. 11672 * 11673 * Return codes 11674 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11675 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11676 */ 11677 static pci_ers_result_t 11678 lpfc_io_slot_reset_s4(struct pci_dev *pdev) 11679 { 11680 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11681 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11682 struct lpfc_sli *psli = &phba->sli; 11683 uint32_t intr_mode; 11684 11685 dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); 11686 if (pci_enable_device_mem(pdev)) { 11687 printk(KERN_ERR "lpfc: Cannot re-enable " 11688 "PCI device after reset.\n"); 11689 return PCI_ERS_RESULT_DISCONNECT; 11690 } 11691 11692 pci_restore_state(pdev); 11693 11694 /* 11695 * As the new kernel behavior of pci_restore_state() API call clears 11696 * device saved_state flag, need to save the restored state again. 11697 */ 11698 pci_save_state(pdev); 11699 11700 if (pdev->is_busmaster) 11701 pci_set_master(pdev); 11702 11703 spin_lock_irq(&phba->hbalock); 11704 psli->sli_flag &= ~LPFC_SLI_ACTIVE; 11705 spin_unlock_irq(&phba->hbalock); 11706 11707 /* Configure and enable interrupt */ 11708 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); 11709 if (intr_mode == LPFC_INTR_ERROR) { 11710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11711 "2824 Cannot re-enable interrupt after " 11712 "slot reset.\n"); 11713 return PCI_ERS_RESULT_DISCONNECT; 11714 } else 11715 phba->intr_mode = intr_mode; 11716 11717 /* Log the current active interrupt mode */ 11718 lpfc_log_intr_mode(phba, phba->intr_mode); 11719 11720 return PCI_ERS_RESULT_RECOVERED; 11721 } 11722 11723 /** 11724 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device 11725 * @pdev: pointer to PCI device 11726 * 11727 * This routine is called from the PCI subsystem for error handling to device 11728 * with SLI-4 interface spec. It is called when kernel error recovery tells 11729 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus 11730 * error recovery. After this call, traffic can start to flow from this device 11731 * again. 11732 **/ 11733 static void 11734 lpfc_io_resume_s4(struct pci_dev *pdev) 11735 { 11736 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11737 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11738 11739 /* 11740 * In case of slot reset, as function reset is performed through 11741 * mailbox command which needs DMA to be enabled, this operation 11742 * has to be moved to the io resume phase. Taking device offline 11743 * will perform the necessary cleanup. 11744 */ 11745 if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { 11746 /* Perform device reset */ 11747 lpfc_offline_prep(phba, LPFC_MBX_WAIT); 11748 lpfc_offline(phba); 11749 lpfc_sli_brdrestart(phba); 11750 /* Bring the device back online */ 11751 lpfc_online(phba); 11752 } 11753 11754 /* Clean up Advanced Error Reporting (AER) if needed */ 11755 if (phba->hba_flag & HBA_AER_ENABLED) 11756 pci_cleanup_aer_uncorrect_error_status(pdev); 11757 } 11758 11759 /** 11760 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem 11761 * @pdev: pointer to PCI device 11762 * @pid: pointer to PCI device identifier 11763 * 11764 * This routine is to be registered to the kernel's PCI subsystem. When an 11765 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks 11766 * at PCI device-specific information of the device and driver to see if the 11767 * driver state that it can support this kind of device. If the match is 11768 * successful, the driver core invokes this routine. This routine dispatches 11769 * the action to the proper SLI-3 or SLI-4 device probing routine, which will 11770 * do all the initialization that it needs to do to handle the HBA device 11771 * properly. 11772 * 11773 * Return code 11774 * 0 - driver can claim the device 11775 * negative value - driver can not claim the device 11776 **/ 11777 static int 11778 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 11779 { 11780 int rc; 11781 struct lpfc_sli_intf intf; 11782 11783 if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) 11784 return -ENODEV; 11785 11786 if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && 11787 (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) 11788 rc = lpfc_pci_probe_one_s4(pdev, pid); 11789 else 11790 rc = lpfc_pci_probe_one_s3(pdev, pid); 11791 11792 return rc; 11793 } 11794 11795 /** 11796 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem 11797 * @pdev: pointer to PCI device 11798 * 11799 * This routine is to be registered to the kernel's PCI subsystem. When an 11800 * Emulex HBA is removed from PCI bus, the driver core invokes this routine. 11801 * This routine dispatches the action to the proper SLI-3 or SLI-4 device 11802 * remove routine, which will perform all the necessary cleanup for the 11803 * device to be removed from the PCI subsystem properly. 11804 **/ 11805 static void 11806 lpfc_pci_remove_one(struct pci_dev *pdev) 11807 { 11808 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11809 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11810 11811 switch (phba->pci_dev_grp) { 11812 case LPFC_PCI_DEV_LP: 11813 lpfc_pci_remove_one_s3(pdev); 11814 break; 11815 case LPFC_PCI_DEV_OC: 11816 lpfc_pci_remove_one_s4(pdev); 11817 break; 11818 default: 11819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11820 "1424 Invalid PCI device group: 0x%x\n", 11821 phba->pci_dev_grp); 11822 break; 11823 } 11824 return; 11825 } 11826 11827 /** 11828 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management 11829 * @pdev: pointer to PCI device 11830 * @msg: power management message 11831 * 11832 * This routine is to be registered to the kernel's PCI subsystem to support 11833 * system Power Management (PM). When PM invokes this method, it dispatches 11834 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will 11835 * suspend the device. 11836 * 11837 * Return code 11838 * 0 - driver suspended the device 11839 * Error otherwise 11840 **/ 11841 static int 11842 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 11843 { 11844 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11845 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11846 int rc = -ENODEV; 11847 11848 switch (phba->pci_dev_grp) { 11849 case LPFC_PCI_DEV_LP: 11850 rc = lpfc_pci_suspend_one_s3(pdev, msg); 11851 break; 11852 case LPFC_PCI_DEV_OC: 11853 rc = lpfc_pci_suspend_one_s4(pdev, msg); 11854 break; 11855 default: 11856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11857 "1425 Invalid PCI device group: 0x%x\n", 11858 phba->pci_dev_grp); 11859 break; 11860 } 11861 return rc; 11862 } 11863 11864 /** 11865 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management 11866 * @pdev: pointer to PCI device 11867 * 11868 * This routine is to be registered to the kernel's PCI subsystem to support 11869 * system Power Management (PM). When PM invokes this method, it dispatches 11870 * the action to the proper SLI-3 or SLI-4 device resume routine, which will 11871 * resume the device. 11872 * 11873 * Return code 11874 * 0 - driver suspended the device 11875 * Error otherwise 11876 **/ 11877 static int 11878 lpfc_pci_resume_one(struct pci_dev *pdev) 11879 { 11880 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11881 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11882 int rc = -ENODEV; 11883 11884 switch (phba->pci_dev_grp) { 11885 case LPFC_PCI_DEV_LP: 11886 rc = lpfc_pci_resume_one_s3(pdev); 11887 break; 11888 case LPFC_PCI_DEV_OC: 11889 rc = lpfc_pci_resume_one_s4(pdev); 11890 break; 11891 default: 11892 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11893 "1426 Invalid PCI device group: 0x%x\n", 11894 phba->pci_dev_grp); 11895 break; 11896 } 11897 return rc; 11898 } 11899 11900 /** 11901 * lpfc_io_error_detected - lpfc method for handling PCI I/O error 11902 * @pdev: pointer to PCI device. 11903 * @state: the current PCI connection state. 11904 * 11905 * This routine is registered to the PCI subsystem for error handling. This 11906 * function is called by the PCI subsystem after a PCI bus error affecting 11907 * this device has been detected. When this routine is invoked, it dispatches 11908 * the action to the proper SLI-3 or SLI-4 device error detected handling 11909 * routine, which will perform the proper error detected operation. 11910 * 11911 * Return codes 11912 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 11913 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11914 **/ 11915 static pci_ers_result_t 11916 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 11917 { 11918 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11919 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11920 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11921 11922 switch (phba->pci_dev_grp) { 11923 case LPFC_PCI_DEV_LP: 11924 rc = lpfc_io_error_detected_s3(pdev, state); 11925 break; 11926 case LPFC_PCI_DEV_OC: 11927 rc = lpfc_io_error_detected_s4(pdev, state); 11928 break; 11929 default: 11930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11931 "1427 Invalid PCI device group: 0x%x\n", 11932 phba->pci_dev_grp); 11933 break; 11934 } 11935 return rc; 11936 } 11937 11938 /** 11939 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch 11940 * @pdev: pointer to PCI device. 11941 * 11942 * This routine is registered to the PCI subsystem for error handling. This 11943 * function is called after PCI bus has been reset to restart the PCI card 11944 * from scratch, as if from a cold-boot. When this routine is invoked, it 11945 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling 11946 * routine, which will perform the proper device reset. 11947 * 11948 * Return codes 11949 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 11950 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 11951 **/ 11952 static pci_ers_result_t 11953 lpfc_io_slot_reset(struct pci_dev *pdev) 11954 { 11955 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11956 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11957 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; 11958 11959 switch (phba->pci_dev_grp) { 11960 case LPFC_PCI_DEV_LP: 11961 rc = lpfc_io_slot_reset_s3(pdev); 11962 break; 11963 case LPFC_PCI_DEV_OC: 11964 rc = lpfc_io_slot_reset_s4(pdev); 11965 break; 11966 default: 11967 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 11968 "1428 Invalid PCI device group: 0x%x\n", 11969 phba->pci_dev_grp); 11970 break; 11971 } 11972 return rc; 11973 } 11974 11975 /** 11976 * lpfc_io_resume - lpfc method for resuming PCI I/O operation 11977 * @pdev: pointer to PCI device 11978 * 11979 * This routine is registered to the PCI subsystem for error handling. It 11980 * is called when kernel error recovery tells the lpfc driver that it is 11981 * OK to resume normal PCI operation after PCI bus error recovery. When 11982 * this routine is invoked, it dispatches the action to the proper SLI-3 11983 * or SLI-4 device io_resume routine, which will resume the device operation. 11984 **/ 11985 static void 11986 lpfc_io_resume(struct pci_dev *pdev) 11987 { 11988 struct Scsi_Host *shost = pci_get_drvdata(pdev); 11989 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 11990 11991 switch (phba->pci_dev_grp) { 11992 case LPFC_PCI_DEV_LP: 11993 lpfc_io_resume_s3(pdev); 11994 break; 11995 case LPFC_PCI_DEV_OC: 11996 lpfc_io_resume_s4(pdev); 11997 break; 11998 default: 11999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 12000 "1429 Invalid PCI device group: 0x%x\n", 12001 phba->pci_dev_grp); 12002 break; 12003 } 12004 return; 12005 } 12006 12007 /** 12008 * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter 12009 * @phba: pointer to lpfc hba data structure. 12010 * 12011 * This routine checks to see if OAS is supported for this adapter. If 12012 * supported, the configure Flash Optimized Fabric flag is set. Otherwise, 12013 * the enable oas flag is cleared and the pool created for OAS device data 12014 * is destroyed. 12015 * 12016 **/ 12017 void 12018 lpfc_sli4_oas_verify(struct lpfc_hba *phba) 12019 { 12020 12021 if (!phba->cfg_EnableXLane) 12022 return; 12023 12024 if (phba->sli4_hba.pc_sli4_params.oas_supported) { 12025 phba->cfg_fof = 1; 12026 } else { 12027 phba->cfg_fof = 0; 12028 if (phba->device_data_mem_pool) 12029 mempool_destroy(phba->device_data_mem_pool); 12030 phba->device_data_mem_pool = NULL; 12031 } 12032 12033 return; 12034 } 12035 12036 /** 12037 * lpfc_fof_queue_setup - Set up all the fof queues 12038 * @phba: pointer to lpfc hba data structure. 12039 * 12040 * This routine is invoked to set up all the fof queues for the FC HBA 12041 * operation. 12042 * 12043 * Return codes 12044 * 0 - successful 12045 * -ENOMEM - No available memory 12046 **/ 12047 int 12048 lpfc_fof_queue_setup(struct lpfc_hba *phba) 12049 { 12050 struct lpfc_sli_ring *pring; 12051 int rc; 12052 12053 rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); 12054 if (rc) 12055 return -ENOMEM; 12056 12057 if (phba->cfg_fof) { 12058 12059 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, 12060 phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); 12061 if (rc) 12062 goto out_oas_cq; 12063 12064 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, 12065 phba->sli4_hba.oas_cq, LPFC_FCP); 12066 if (rc) 12067 goto out_oas_wq; 12068 12069 /* Bind this CQ/WQ to the NVME ring */ 12070 pring = phba->sli4_hba.oas_wq->pring; 12071 pring->sli.sli4.wqp = 12072 (void *)phba->sli4_hba.oas_wq; 12073 phba->sli4_hba.oas_cq->pring = pring; 12074 } 12075 12076 return 0; 12077 12078 out_oas_wq: 12079 lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); 12080 out_oas_cq: 12081 lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); 12082 return rc; 12083 12084 } 12085 12086 /** 12087 * lpfc_fof_queue_create - Create all the fof queues 12088 * @phba: pointer to lpfc hba data structure. 12089 * 12090 * This routine is invoked to allocate all the fof queues for the FC HBA 12091 * operation. For each SLI4 queue type, the parameters such as queue entry 12092 * count (queue depth) shall be taken from the module parameter. For now, 12093 * we just use some constant number as place holder. 12094 * 12095 * Return codes 12096 * 0 - successful 12097 * -ENOMEM - No availble memory 12098 * -EIO - The mailbox failed to complete successfully. 12099 **/ 12100 int 12101 lpfc_fof_queue_create(struct lpfc_hba *phba) 12102 { 12103 struct lpfc_queue *qdesc; 12104 uint32_t wqesize; 12105 12106 /* Create FOF EQ */ 12107 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize, 12108 phba->sli4_hba.eq_ecount); 12109 if (!qdesc) 12110 goto out_error; 12111 12112 phba->sli4_hba.fof_eq = qdesc; 12113 12114 if (phba->cfg_fof) { 12115 12116 /* Create OAS CQ */ 12117 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize, 12118 phba->sli4_hba.cq_ecount); 12119 if (!qdesc) 12120 goto out_error; 12121 12122 phba->sli4_hba.oas_cq = qdesc; 12123 12124 /* Create OAS WQ */ 12125 wqesize = (phba->fcp_embed_io) ? 12126 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; 12127 qdesc = lpfc_sli4_queue_alloc(phba, wqesize, 12128 phba->sli4_hba.wq_ecount); 12129 12130 if (!qdesc) 12131 goto out_error; 12132 12133 phba->sli4_hba.oas_wq = qdesc; 12134 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); 12135 12136 } 12137 return 0; 12138 12139 out_error: 12140 lpfc_fof_queue_destroy(phba); 12141 return -ENOMEM; 12142 } 12143 12144 /** 12145 * lpfc_fof_queue_destroy - Destroy all the fof queues 12146 * @phba: pointer to lpfc hba data structure. 12147 * 12148 * This routine is invoked to release all the SLI4 queues with the FC HBA 12149 * operation. 12150 * 12151 * Return codes 12152 * 0 - successful 12153 **/ 12154 int 12155 lpfc_fof_queue_destroy(struct lpfc_hba *phba) 12156 { 12157 /* Release FOF Event queue */ 12158 if (phba->sli4_hba.fof_eq != NULL) { 12159 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); 12160 phba->sli4_hba.fof_eq = NULL; 12161 } 12162 12163 /* Release OAS Completion queue */ 12164 if (phba->sli4_hba.oas_cq != NULL) { 12165 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); 12166 phba->sli4_hba.oas_cq = NULL; 12167 } 12168 12169 /* Release OAS Work queue */ 12170 if (phba->sli4_hba.oas_wq != NULL) { 12171 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); 12172 phba->sli4_hba.oas_wq = NULL; 12173 } 12174 return 0; 12175 } 12176 12177 MODULE_DEVICE_TABLE(pci, lpfc_id_table); 12178 12179 static const struct pci_error_handlers lpfc_err_handler = { 12180 .error_detected = lpfc_io_error_detected, 12181 .slot_reset = lpfc_io_slot_reset, 12182 .resume = lpfc_io_resume, 12183 }; 12184 12185 static struct pci_driver lpfc_driver = { 12186 .name = LPFC_DRIVER_NAME, 12187 .id_table = lpfc_id_table, 12188 .probe = lpfc_pci_probe_one, 12189 .remove = lpfc_pci_remove_one, 12190 .shutdown = lpfc_pci_remove_one, 12191 .suspend = lpfc_pci_suspend_one, 12192 .resume = lpfc_pci_resume_one, 12193 .err_handler = &lpfc_err_handler, 12194 }; 12195 12196 static const struct file_operations lpfc_mgmt_fop = { 12197 .owner = THIS_MODULE, 12198 }; 12199 12200 static struct miscdevice lpfc_mgmt_dev = { 12201 .minor = MISC_DYNAMIC_MINOR, 12202 .name = "lpfcmgmt", 12203 .fops = &lpfc_mgmt_fop, 12204 }; 12205 12206 /** 12207 * lpfc_init - lpfc module initialization routine 12208 * 12209 * This routine is to be invoked when the lpfc module is loaded into the 12210 * kernel. The special kernel macro module_init() is used to indicate the 12211 * role of this routine to the kernel as lpfc module entry point. 12212 * 12213 * Return codes 12214 * 0 - successful 12215 * -ENOMEM - FC attach transport failed 12216 * all others - failed 12217 */ 12218 static int __init 12219 lpfc_init(void) 12220 { 12221 int error = 0; 12222 12223 printk(LPFC_MODULE_DESC "\n"); 12224 printk(LPFC_COPYRIGHT "\n"); 12225 12226 error = misc_register(&lpfc_mgmt_dev); 12227 if (error) 12228 printk(KERN_ERR "Could not register lpfcmgmt device, " 12229 "misc_register returned with status %d", error); 12230 12231 lpfc_transport_functions.vport_create = lpfc_vport_create; 12232 lpfc_transport_functions.vport_delete = lpfc_vport_delete; 12233 lpfc_transport_template = 12234 fc_attach_transport(&lpfc_transport_functions); 12235 if (lpfc_transport_template == NULL) 12236 return -ENOMEM; 12237 lpfc_vport_transport_template = 12238 fc_attach_transport(&lpfc_vport_transport_functions); 12239 if (lpfc_vport_transport_template == NULL) { 12240 fc_release_transport(lpfc_transport_template); 12241 return -ENOMEM; 12242 } 12243 12244 /* Initialize in case vector mapping is needed */ 12245 lpfc_used_cpu = NULL; 12246 lpfc_present_cpu = num_present_cpus(); 12247 12248 error = pci_register_driver(&lpfc_driver); 12249 if (error) { 12250 fc_release_transport(lpfc_transport_template); 12251 fc_release_transport(lpfc_vport_transport_template); 12252 } 12253 12254 return error; 12255 } 12256 12257 /** 12258 * lpfc_exit - lpfc module removal routine 12259 * 12260 * This routine is invoked when the lpfc module is removed from the kernel. 12261 * The special kernel macro module_exit() is used to indicate the role of 12262 * this routine to the kernel as lpfc module exit point. 12263 */ 12264 static void __exit 12265 lpfc_exit(void) 12266 { 12267 misc_deregister(&lpfc_mgmt_dev); 12268 pci_unregister_driver(&lpfc_driver); 12269 fc_release_transport(lpfc_transport_template); 12270 fc_release_transport(lpfc_vport_transport_template); 12271 if (_dump_buf_data) { 12272 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " 12273 "_dump_buf_data at 0x%p\n", 12274 (1L << _dump_buf_data_order), _dump_buf_data); 12275 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); 12276 } 12277 12278 if (_dump_buf_dif) { 12279 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " 12280 "_dump_buf_dif at 0x%p\n", 12281 (1L << _dump_buf_dif_order), _dump_buf_dif); 12282 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); 12283 } 12284 kfree(lpfc_used_cpu); 12285 idr_destroy(&lpfc_hba_index); 12286 } 12287 12288 module_init(lpfc_init); 12289 module_exit(lpfc_exit); 12290 MODULE_LICENSE("GPL"); 12291 MODULE_DESCRIPTION(LPFC_MODULE_DESC); 12292 MODULE_AUTHOR("Broadcom"); 12293 MODULE_VERSION("0:" LPFC_DRIVER_VERSION); 12294